diff options
Diffstat (limited to 'drivers/usb/net')
| -rw-r--r-- | drivers/usb/net/Kconfig | 208 | ||||
| -rw-r--r-- | drivers/usb/net/Makefile | 8 | ||||
| -rw-r--r-- | drivers/usb/net/asix.c | 948 | ||||
| -rw-r--r-- | drivers/usb/net/catc.c | 2 | ||||
| -rw-r--r-- | drivers/usb/net/cdc_ether.c | 509 | ||||
| -rw-r--r-- | drivers/usb/net/cdc_subset.c | 335 | ||||
| -rw-r--r-- | drivers/usb/net/gl620a.c | 407 | ||||
| -rw-r--r-- | drivers/usb/net/kaweth.c | 1 | ||||
| -rw-r--r-- | drivers/usb/net/net1080.c | 622 | ||||
| -rw-r--r-- | drivers/usb/net/pegasus.c | 1 | ||||
| -rw-r--r-- | drivers/usb/net/plusb.c | 156 | ||||
| -rw-r--r-- | drivers/usb/net/rndis_host.c | 615 | ||||
| -rw-r--r-- | drivers/usb/net/rtl8150.c | 1 | ||||
| -rw-r--r-- | drivers/usb/net/usbnet.c | 3226 | ||||
| -rw-r--r-- | drivers/usb/net/usbnet.h | 193 | ||||
| -rw-r--r-- | drivers/usb/net/zaurus.c | 386 | ||||
| -rw-r--r-- | drivers/usb/net/zd1201.c | 1 |
17 files changed, 4393 insertions, 3226 deletions
diff --git a/drivers/usb/net/Kconfig b/drivers/usb/net/Kconfig index b104430e2c6..8c010bb44eb 100644 --- a/drivers/usb/net/Kconfig +++ b/drivers/usb/net/Kconfig @@ -99,7 +99,7 @@ config USB_USBNET with "minidrivers" built around a common network driver core that supports deep queues for efficient transfers. (This gives better performance with small packets and at high speeds). - + The USB host runs "usbnet", and the other end of the link might be: - Another USB host, when using USB "network" or "data transfer" @@ -125,38 +125,63 @@ config USB_USBNET To compile this driver as a module, choose M here: the module will be called usbnet. -comment "USB Host-to-Host Cables" - depends on USB_USBNET - -config USB_ALI_M5632 - boolean "ALi M5632 based 'USB 2.0 Data Link' cables" - depends on USB_USBNET +config USB_NET_AX8817X + tristate "ASIX AX88xxx Based USB 2.0 Ethernet Adapters" + depends on USB_USBNET && NET_ETHERNET + select CRC32 + select MII default y help - Choose this option if you're using a host-to-host cable - based on this design, which supports USB 2.0 high speed. + This option adds support for ASIX AX88xxx based USB 2.0 + 10/100 Ethernet adapters. -config USB_AN2720 - boolean "AnchorChips 2720 based cables (Xircom PGUNET, ...)" - depends on USB_USBNET - default y - help - Choose this option if you're using a host-to-host cable - based on this design. Note that AnchorChips is now a - Cypress brand. + This driver should work with at least the following devices: + * Aten UC210T + * ASIX AX88172 + * Billionton Systems, USB2AR + * Buffalo LUA-U2-KTX + * Corega FEther USB2-TX + * D-Link DUB-E100 + * Hawking UF200 + * Linksys USB200M + * Netgear FA120 + * Sitecom LN-029 + * Intellinet USB 2.0 Ethernet + * ST Lab USB 2.0 Ethernet + * TrendNet TU2-ET100 -config USB_BELKIN - boolean "eTEK based host-to-host cables (Advance, Belkin, ...)" + This driver creates an interface named "ethX", where X depends on + what other networking devices you have in use. + + +config USB_NET_CDCETHER + tristate "CDC Ethernet support (smart devices such as cable modems)" depends on USB_USBNET default y help - Choose this option if you're using a host-to-host cable - based on this design: two NetChip 2890 chips and an Atmel - microcontroller, with LEDs that indicate traffic. + This option supports devices conforming to the Communication Device + Class (CDC) Ethernet Control Model, a specification that's easy to + implement in device firmware. The CDC specifications are available + from <http://www.usb.org/>. -config USB_GENESYS - boolean "GeneSys GL620USB-A based cables" - default y + CDC Ethernet is an implementation option for DOCSIS cable modems + that support USB connectivity, used for non-Microsoft USB hosts. + The Linux-USB CDC Ethernet Gadget driver is an open implementation. + This driver should work with at least the following devices: + + * Ericsson PipeRider (all variants) + * Motorola (DM100 and SB4100) + * Broadcom Cable Modem (reference design) + * Toshiba PCX1100U + * ... + + This driver creates an interface named "ethX", where X depends on + what other networking devices you have in use. However, if the + IEEE 802 "local assignment" bit is set in the address, a "usbX" + name is used instead. + +config USB_NET_GL620A + tristate "GeneSys GL620USB-A based cables" depends on USB_USBNET help Choose this option if you're using a host-to-host cable, @@ -164,38 +189,78 @@ config USB_GENESYS Note that the half-duplex "GL620USB" is not supported. -config USB_NET1080 - boolean "NetChip 1080 based cables (Laplink, ...)" +config USB_NET_NET1080 + tristate "NetChip 1080 based cables (Laplink, ...)" default y depends on USB_USBNET help Choose this option if you're using a host-to-host cable based - on this design: one NetChip 1080 chips and supporting logic, - supporting LEDs that indicate traffic + on this design: one NetChip 1080 chip and supporting logic, + optionally with LEDs that indicate traffic -config USB_PL2301 - boolean "Prolific PL-2301/2302 based cables" - default y - # handshake/init/reset problems, from original 'plusb' driver +config USB_NET_PLUSB + tristate "Prolific PL-2301/2302 based cables" + # if the handshake/init/reset problems, from original 'plusb', + # are ever resolved ... then remove "experimental" depends on USB_USBNET && EXPERIMENTAL help Choose this option if you're using a host-to-host cable with one of these chips. -config USB_KC2190 - boolean "KT Technology KC2190 based cables (InstaNet)" - default y +config USB_NET_RNDIS_HOST + tristate "Host for RNDIS devices (EXPERIMENTAL)" depends on USB_USBNET && EXPERIMENTAL + select USB_NET_CDCETHER help - Choose this option if you're using a host-to-host cable - with one of these chips. + This option enables hosting "Remote NDIS" USB networking links, + as encouraged by Microsoft (instead of CDC Ethernet!) for use in + various devices that may only support this protocol. -comment "Intelligent USB Devices/Gadgets" + Avoid using this protocol unless you have no better options. + The protocol specification is incomplete, and is controlled by + (and for) Microsoft; it isn't an "Open" ecosystem or market. + +config USB_NET_CDC_SUBSET + tristate "Simple USB Network Links (CDC Ethernet subset)" depends on USB_USBNET + help + This driver module supports USB network devices that can work + without any device-specific information. Select it if you have + one of these drivers. + + Note that while many USB host-to-host cables can work in this mode, + that may mean not being able to talk to Win32 systems or more + commonly not being able to handle certain events (like replugging + the host on the other end) very well. Also, these devices will + not generally have permanently assigned Ethernet addresses. + +config USB_ALI_M5632 + boolean "ALi M5632 based 'USB 2.0 Data Link' cables" + depends on USB_NET_CDC_SUBSET + help + Choose this option if you're using a host-to-host cable + based on this design, which supports USB 2.0 high speed. + +config USB_AN2720 + boolean "AnchorChips 2720 based cables (Xircom PGUNET, ...)" + depends on USB_NET_CDC_SUBSET + help + Choose this option if you're using a host-to-host cable + based on this design. Note that AnchorChips is now a + Cypress brand. + +config USB_BELKIN + boolean "eTEK based host-to-host cables (Advance, Belkin, ...)" + depends on USB_NET_CDC_SUBSET + default y + help + Choose this option if you're using a host-to-host cable + based on this design: two NetChip 2890 chips and an Atmel + microcontroller, with LEDs that indicate traffic. config USB_ARMLINUX boolean "Embedded ARM Linux links (iPaq, ...)" - depends on USB_USBNET + depends on USB_NET_CDC_SUBSET default y help Choose this option to support the "usb-eth" networking driver @@ -212,15 +277,15 @@ config USB_ARMLINUX config USB_EPSON2888 boolean "Epson 2888 based firmware (DEVELOPMENT)" - depends on USB_USBNET - default y + depends on USB_NET_CDC_SUBSET help Choose this option to support the usb networking links used by some sample firmware from Epson. -config USB_ZAURUS - boolean "Sharp Zaurus (stock ROMs) and compatible" +config USB_NET_ZAURUS + tristate "Sharp Zaurus (stock ROMs) and compatible" depends on USB_USBNET + select USB_NET_CDCETHER select CRC32 default y help @@ -235,61 +300,6 @@ config USB_ZAURUS really need this non-conformant variant of CDC Ethernet (or in some cases CDC MDLM) protocol, not "g_ether". -config USB_CDCETHER - boolean "CDC Ethernet support (smart devices such as cable modems)" - depends on USB_USBNET - default y - help - This option supports devices conforming to the Communication Device - Class (CDC) Ethernet Control Model, a specification that's easy to - implement in device firmware. The CDC specifications are available - from <http://www.usb.org/>. - - CDC Ethernet is an implementation option for DOCSIS cable modems - that support USB connectivity, used for non-Microsoft USB hosts. - This driver should work with at least the following devices: - - * Ericsson PipeRider (all variants) - * Motorola (DM100 and SB4100) - * Broadcom Cable Modem (reference design) - * Toshiba PCX1100U - * ... - - This driver creates an interface named "ethX", where X depends on - what other networking devices you have in use. However, if the - IEEE 802 "local assignment" bit is set in the address, a "usbX" - name is used instead. - -comment "USB Network Adapters" - depends on USB_USBNET - -config USB_AX8817X - boolean "ASIX AX88xxx Based USB 2.0 Ethernet Devices" - depends on USB_USBNET && NET_ETHERNET - select CRC32 - select MII - default y - help - This option adds support for ASIX AX88xxx based USB 2.0 - 10/100 Ethernet devices. - - This driver should work with at least the following devices: - * Aten UC210T - * ASIX AX88172 - * Billionton Systems, USB2AR - * Buffalo LUA-U2-KTX - * Corega FEther USB2-TX - * D-Link DUB-E100 - * Hawking UF200 - * Linksys USB200M - * Netgear FA120 - * Sitecom LN-029 - * Intellinet USB 2.0 Ethernet - * ST Lab USB 2.0 Ethernet - * TrendNet TU2-ET100 - - This driver creates an interface named "ethX", where X depends on - what other networking devices you have in use. config USB_ZD1201 tristate "USB ZD1201 based Wireless device support" diff --git a/drivers/usb/net/Makefile b/drivers/usb/net/Makefile index fe3fd4115e1..222c0495f79 100644 --- a/drivers/usb/net/Makefile +++ b/drivers/usb/net/Makefile @@ -6,5 +6,13 @@ obj-$(CONFIG_USB_CATC) += catc.o obj-$(CONFIG_USB_KAWETH) += kaweth.o obj-$(CONFIG_USB_PEGASUS) += pegasus.o obj-$(CONFIG_USB_RTL8150) += rtl8150.o +obj-$(CONFIG_USB_NET_AX8817X) += asix.o +obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o +obj-$(CONFIG_USB_NET_GL620A) += gl620a.o +obj-$(CONFIG_USB_NET_NET1080) += net1080.o +obj-$(CONFIG_USB_NET_PLUSB) += plusb.o +obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o +obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o +obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o obj-$(CONFIG_USB_USBNET) += usbnet.o obj-$(CONFIG_USB_ZD1201) += zd1201.o diff --git a/drivers/usb/net/asix.c b/drivers/usb/net/asix.c new file mode 100644 index 00000000000..861f00a4375 --- /dev/null +++ b/drivers/usb/net/asix.c @@ -0,0 +1,948 @@ +/* + * ASIX AX8817X based USB 2.0 Ethernet Devices + * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> + * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> + * Copyright (c) 2002-2003 TiVo Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/kmod.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> +#include <linux/crc32.h> + +#include "usbnet.h" + + +/* ASIX AX8817X based USB 2.0 Ethernet Devices */ + +#define AX_CMD_SET_SW_MII 0x06 +#define AX_CMD_READ_MII_REG 0x07 +#define AX_CMD_WRITE_MII_REG 0x08 +#define AX_CMD_SET_HW_MII 0x0a +#define AX_CMD_READ_EEPROM 0x0b +#define AX_CMD_WRITE_EEPROM 0x0c +#define AX_CMD_WRITE_ENABLE 0x0d +#define AX_CMD_WRITE_DISABLE 0x0e +#define AX_CMD_WRITE_RX_CTL 0x10 +#define AX_CMD_READ_IPG012 0x11 +#define AX_CMD_WRITE_IPG0 0x12 +#define AX_CMD_WRITE_IPG1 0x13 +#define AX_CMD_WRITE_IPG2 0x14 +#define AX_CMD_WRITE_MULTI_FILTER 0x16 +#define AX_CMD_READ_NODE_ID 0x17 +#define AX_CMD_READ_PHY_ID 0x19 +#define AX_CMD_READ_MEDIUM_STATUS 0x1a +#define AX_CMD_WRITE_MEDIUM_MODE 0x1b +#define AX_CMD_READ_MONITOR_MODE 0x1c +#define AX_CMD_WRITE_MONITOR_MODE 0x1d +#define AX_CMD_WRITE_GPIOS 0x1f +#define AX_CMD_SW_RESET 0x20 +#define AX_CMD_SW_PHY_STATUS 0x21 +#define AX_CMD_SW_PHY_SELECT 0x22 +#define AX88772_CMD_READ_NODE_ID 0x13 + +#define AX_MONITOR_MODE 0x01 +#define AX_MONITOR_LINK 0x02 +#define AX_MONITOR_MAGIC 0x04 +#define AX_MONITOR_HSFS 0x10 + +/* AX88172 Medium Status Register values */ +#define AX_MEDIUM_FULL_DUPLEX 0x02 +#define AX_MEDIUM_TX_ABORT_ALLOW 0x04 +#define AX_MEDIUM_FLOW_CONTROL_EN 0x10 + +#define AX_MCAST_FILTER_SIZE 8 +#define AX_MAX_MCAST 64 + +#define AX_EEPROM_LEN 0x40 + +#define AX_SWRESET_CLEAR 0x00 +#define AX_SWRESET_RR 0x01 +#define AX_SWRESET_RT 0x02 +#define AX_SWRESET_PRTE 0x04 +#define AX_SWRESET_PRL 0x08 +#define AX_SWRESET_BZ 0x10 +#define AX_SWRESET_IPRL 0x20 +#define AX_SWRESET_IPPD 0x40 + +#define AX88772_IPG0_DEFAULT 0x15 +#define AX88772_IPG1_DEFAULT 0x0c +#define AX88772_IPG2_DEFAULT 0x12 + +#define AX88772_MEDIUM_FULL_DUPLEX 0x0002 +#define AX88772_MEDIUM_RESERVED 0x0004 +#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010 +#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020 +#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080 +#define AX88772_MEDIUM_RX_ENABLE 0x0100 +#define AX88772_MEDIUM_100MB 0x0200 +#define AX88772_MEDIUM_DEFAULT \ + (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \ + AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \ + AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE ) + +#define AX_EEPROM_MAGIC 0xdeadbeef + +/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ +struct ax8817x_data { + u8 multi_filter[AX_MCAST_FILTER_SIZE]; +}; + +struct ax88172_int_data { + u16 res1; + u8 link; + u16 res2; + u8 status; + u16 res3; +} __attribute__ ((packed)); + +static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + return usb_control_msg( + dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + cmd, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + data, + size, + USB_CTRL_GET_TIMEOUT); +} + +static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + return usb_control_msg( + dev->udev, + usb_sndctrlpipe(dev->udev, 0), + cmd, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + data, + size, + USB_CTRL_SET_TIMEOUT); +} + +static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; + + if (urb->status < 0) + printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d", + urb->status); + + kfree(req); + usb_free_urb(urb); +} + +static void ax8817x_status(struct usbnet *dev, struct urb *urb) +{ + struct ax88172_int_data *event; + int link; + + if (urb->actual_length < 8) + return; + + event = urb->transfer_buffer; + link = event->link & 0x01; + if (netif_carrier_ok(dev->net) != link) { + if (link) { + netif_carrier_on(dev->net); + usbnet_defer_kevent (dev, EVENT_LINK_RESET ); + } else + netif_carrier_off(dev->net); + devdbg(dev, "ax8817x - Link Status is: %d", link); + } +} + +static void +ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) +{ + struct usb_ctrlrequest *req; + int status; + struct urb *urb; + + if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { + devdbg(dev, "Error allocating URB in write_cmd_async!"); + return; + } + + if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { + deverr(dev, "Failed to allocate memory for control request"); + usb_free_urb(urb); + return; + } + + req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; + req->bRequest = cmd; + req->wValue = cpu_to_le16(value); + req->wIndex = cpu_to_le16(index); + req->wLength = cpu_to_le16(size); + + usb_fill_control_urb(urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), + (void *)req, data, size, + ax8817x_async_cmd_callback, req); + + if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + deverr(dev, "Error submitting the control message: status=%d", + status); + kfree(req); + usb_free_urb(urb); + } +} + +static void ax8817x_set_multicast(struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + struct ax8817x_data *data = (struct ax8817x_data *)&dev->data; + u8 rx_ctl = 0x8c; + + if (net->flags & IFF_PROMISC) { + rx_ctl |= 0x01; + } else if (net->flags & IFF_ALLMULTI + || net->mc_count > AX_MAX_MCAST) { + rx_ctl |= 0x02; + } else if (net->mc_count == 0) { + /* just broadcast and directed */ + } else { + /* We use the 20 byte dev->data + * for our 8 byte filter buffer + * to avoid allocating memory that + * is tricky to free later */ + struct dev_mc_list *mc_list = net->mc_list; + u32 crc_bits; + int i; + + memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); + + /* Build the multicast hash filter. */ + for (i = 0; i < net->mc_count; i++) { + crc_bits = + ether_crc(ETH_ALEN, + mc_list->dmi_addr) >> 26; + data->multi_filter[crc_bits >> 3] |= + 1 << (crc_bits & 7); + mc_list = mc_list->next; + } + + ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, + AX_MCAST_FILTER_SIZE, data->multi_filter); + + rx_ctl |= 0x10; + } + + ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); +} + +static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc) +{ + struct usbnet *dev = netdev_priv(netdev); + u16 res; + u8 buf[1]; + + ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); + ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, + (__u16)loc, 2, (u16 *)&res); + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); + + return res & 0xffff; +} + +/* same as above, but converts resulting value to cpu byte order */ +static int ax8817x_mdio_read_le(struct net_device *netdev, int phy_id, int loc) +{ + return le16_to_cpu(ax8817x_mdio_read(netdev,phy_id, loc)); +} + +static void +ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) +{ + struct usbnet *dev = netdev_priv(netdev); + u16 res = val; + u8 buf[1]; + + ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); + ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, + (__u16)loc, 2, (u16 *)&res); + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); +} + +/* same as above, but converts new value to le16 byte order before writing */ +static void +ax8817x_mdio_write_le(struct net_device *netdev, int phy_id, int loc, int val) +{ + ax8817x_mdio_write( netdev, phy_id, loc, cpu_to_le16(val) ); +} + +static int ax88172_link_reset(struct usbnet *dev) +{ + u16 lpa; + u16 adv; + u16 res; + u8 mode; + + mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN; + lpa = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA); + adv = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE); + res = mii_nway_result(lpa|adv); + if (res & LPA_DUPLEX) + mode |= AX_MEDIUM_FULL_DUPLEX; + ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); + + return 0; +} + +static void +ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) +{ + struct usbnet *dev = netdev_priv(net); + u8 opt; + + if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { + wolinfo->supported = 0; + wolinfo->wolopts = 0; + return; + } + wolinfo->supported = WAKE_PHY | WAKE_MAGIC; + wolinfo->wolopts = 0; + if (opt & AX_MONITOR_MODE) { + if (opt & AX_MONITOR_LINK) + wolinfo->wolopts |= WAKE_PHY; + if (opt & AX_MONITOR_MAGIC) + wolinfo->wolopts |= WAKE_MAGIC; + } +} + +static int +ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) +{ + struct usbnet *dev = netdev_priv(net); + u8 opt = 0; + u8 buf[1]; + + if (wolinfo->wolopts & WAKE_PHY) + opt |= AX_MONITOR_LINK; + if (wolinfo->wolopts & WAKE_MAGIC) + opt |= AX_MONITOR_MAGIC; + if (opt != 0) + opt |= AX_MONITOR_MODE; + + if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, + opt, 0, 0, &buf) < 0) + return -EINVAL; + + return 0; +} + +static int ax8817x_get_eeprom_len(struct net_device *net) +{ + return AX_EEPROM_LEN; +} + +static int ax8817x_get_eeprom(struct net_device *net, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct usbnet *dev = netdev_priv(net); + u16 *ebuf = (u16 *)data; + int i; + + /* Crude hack to ensure that we don't overwrite memory + * if an odd length is supplied + */ + if (eeprom->len % 2) + return -EINVAL; + + eeprom->magic = AX_EEPROM_MAGIC; + + /* ax8817x returns 2 bytes from eeprom on read */ + for (i=0; i < eeprom->len / 2; i++) { + if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM, + eeprom->offset + i, 0, 2, &ebuf[i]) < 0) + return -EINVAL; + } + return 0; +} + +static void ax8817x_get_drvinfo (struct net_device *net, + struct ethtool_drvinfo *info) +{ + /* Inherit standard device info */ + usbnet_get_drvinfo(net, info); + info->eedump_len = 0x3e; +} + +static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_ethtool_gset(&dev->mii,cmd); +} + +static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_ethtool_sset(&dev->mii,cmd); +} + +/* We need to override some ethtool_ops so we require our + own structure so we don't interfere with other usbnet + devices that may be connected at the same time. */ +static struct ethtool_ops ax8817x_ethtool_ops = { + .get_drvinfo = ax8817x_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, + .get_wol = ax8817x_get_wol, + .set_wol = ax8817x_set_wol, + .get_eeprom_len = ax8817x_get_eeprom_len, + .get_eeprom = ax8817x_get_eeprom, + .get_settings = ax8817x_get_settings, + .set_settings = ax8817x_set_settings, +}; + +static int ax8817x_ioctl (struct net_device *net, struct ifreq *rq, int cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); +} + +static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret = 0; + void *buf; + int i; + unsigned long gpio_bits = dev->driver_info->data; + + usbnet_get_endpoints(dev,intf); + + buf = kmalloc(ETH_ALEN, GFP_KERNEL); + if(!buf) { + ret = -ENOMEM; + goto out1; + } + + /* Toggle the GPIOs in a manufacturer/model specific way */ + for (i = 2; i >= 0; i--) { + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, + (gpio_bits >> (i * 8)) & 0xff, 0, 0, + buf)) < 0) + goto out2; + msleep(5); + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, + 0x80, 0, 0, buf)) < 0) { + dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret); + goto out2; + } + + /* Get the MAC address */ + memset(buf, 0, ETH_ALEN); + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, + 0, 0, 6, buf)) < 0) { + dbg("read AX_CMD_READ_NODE_ID failed: %d", ret); + goto out2; + } + memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + /* Get the PHY id */ + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, + 0, 0, 2, buf)) < 0) { + dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret); + goto out2; + } else if (ret < 2) { + /* this should always return 2 bytes */ + dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", + ret); + ret = -EIO; + goto out2; + } + + /* Initialize MII structure */ + dev->mii.dev = dev->net; + dev->mii.mdio_read = ax8817x_mdio_read; + dev->mii.mdio_write = ax8817x_mdio_write; + dev->mii.phy_id_mask = 0x3f; + dev->mii.reg_num_mask = 0x1f; + dev->mii.phy_id = *((u8 *)buf + 1); + dev->net->do_ioctl = ax8817x_ioctl; + + dev->net->set_multicast_list = ax8817x_set_multicast; + dev->net->ethtool_ops = &ax8817x_ethtool_ops; + + ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); + ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); + mii_nway_restart(&dev->mii); + + return 0; +out2: + kfree(buf); +out1: + return ret; +} + +static struct ethtool_ops ax88772_ethtool_ops = { + .get_drvinfo = ax8817x_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, + .get_wol = ax8817x_get_wol, + .set_wol = ax8817x_set_wol, + .get_eeprom_len = ax8817x_get_eeprom_len, + .get_eeprom = ax8817x_get_eeprom, + .get_settings = ax8817x_get_settings, + .set_settings = ax8817x_set_settings, +}; + +static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int ret; + void *buf; + + usbnet_get_endpoints(dev,intf); + + buf = kmalloc(6, GFP_KERNEL); + if(!buf) { + dbg ("Cannot allocate memory for buffer"); + ret = -ENOMEM; + goto out1; + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, + 0x00B0, 0, 0, buf)) < 0) + goto out2; + + msleep(5); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, + 0x0001, 0, 0, buf)) < 0) { + dbg("Select PHY #1 failed: %d", ret); + goto out2; + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, + 0, 0, buf)) < 0) { + dbg("Failed to power down internal PHY: %d", ret); + goto out2; + } + + msleep(150); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, + 0, 0, buf)) < 0) { + dbg("Failed to perform software reset: %d", ret); + goto out2; + } + + msleep(150); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, + AX_SWRESET_IPRL | AX_SWRESET_PRL, + 0, 0, buf)) < 0) { + dbg("Failed to set Internal/External PHY reset control: %d", + ret); + goto out2; + } + + msleep(150); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, + 0x0000, 0, 0, buf)) < 0) { + dbg("Failed to reset RX_CTL: %d", ret); + goto out2; + } + + /* Get the MAC address */ + memset(buf, 0, ETH_ALEN); + if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, + 0, 0, ETH_ALEN, buf)) < 0) { + dbg("Failed to read MAC address: %d", ret); + goto out2; + } + memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, + 0, 0, 0, buf)) < 0) { + dbg("Enabling software MII failed: %d", ret); + goto out2; + } + + if (((ret = ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, + 0x0010, 2, 2, buf)) < 0) + || (*((u16 *)buf) != 0x003b)) { + dbg("Read PHY register 2 must be 0x3b00: %d", ret); + goto out2; + } + + /* Initialize MII structure */ + dev->mii.dev = dev->net; + dev->mii.mdio_read = ax8817x_mdio_read; + dev->mii.mdio_write = ax8817x_mdio_write; + dev->mii.phy_id_mask = 0xff; + dev->mii.reg_num_mask = 0xff; + dev->net->do_ioctl = ax8817x_ioctl; + + /* Get the PHY id */ + if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, + 0, 0, 2, buf)) < 0) { + dbg("Error reading PHY ID: %02x", ret); + goto out2; + } else if (ret < 2) { + /* this should always return 2 bytes */ + dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", + ret); + ret = -EIO; + goto out2; + } + dev->mii.phy_id = *((u8 *)buf + 1); + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, + 0, 0, buf)) < 0) { + dbg("Set external PHY reset pin level: %d", ret); + goto out2; + } + msleep(150); + if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_RESET, + AX_SWRESET_IPRL | AX_SWRESET_PRL, + 0, 0, buf)) < 0) { + dbg("Set Internal/External PHY reset control: %d", ret); + goto out2; + } + msleep(150); + + + dev->net->set_multicast_list = ax8817x_set_multicast; + dev->net->ethtool_ops = &ax88772_ethtool_ops; + + ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); + ax8817x_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_CSMA); + mii_nway_restart(&dev->mii); + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, + AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) { + dbg("Write medium mode register: %d", ret); + goto out2; + } + + if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, + AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, + AX88772_IPG2_DEFAULT, 0, buf)) < 0) { + dbg("Write IPG,IPG1,IPG2 failed: %d", ret); + goto out2; + } + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) { + dbg("Failed to set hardware MII: %02x", ret); + goto out2; + } + + /* Set RX_CTL to default values with 2k buffer, and enable cactus */ + if ((ret = + ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0, + buf)) < 0) { + dbg("Reset RX_CTL failed: %d", ret); + goto out2; + } + + kfree(buf); + + /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */ + if (dev->driver_info->flags & FLAG_FRAMING_AX) { + /* hard_mtu is still the default - the device does not support + jumbo eth frames */ + dev->rx_urb_size = 2048; + } + + return 0; + +out2: + kfree(buf); +out1: + return ret; +} + +static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + u8 *head; + u32 header; + char *packet; + struct sk_buff *ax_skb; + u16 size; + + head = (u8 *) skb->data; + memcpy(&header, head, sizeof(header)); + le32_to_cpus(&header); + packet = head + sizeof(header); + + skb_pull(skb, 4); + + while (skb->len > 0) { + if ((short)(header & 0x0000ffff) != + ~((short)((header & 0xffff0000) >> 16))) { + devdbg(dev,"header length data is error"); + } + /* get the packet length */ + size = (u16) (header & 0x0000ffff); + + if ((skb->len) - ((size + 1) & 0xfffe) == 0) + return 2; + if (size > ETH_FRAME_LEN) { + devdbg(dev,"invalid rx length %d", size); + return 0; + } + ax_skb = skb_clone(skb, GFP_ATOMIC); + if (ax_skb) { + ax_skb->len = size; + ax_skb->data = packet; + ax_skb->tail = packet + size; + usbnet_skb_return(dev, ax_skb); + } else { + return 0; + } + + skb_pull(skb, (size + 1) & 0xfffe); + + if (skb->len == 0) + break; + + head = (u8 *) skb->data; + memcpy(&header, head, sizeof(header)); + le32_to_cpus(&header); + packet = head + sizeof(header); + skb_pull(skb, 4); + } + + if (skb->len < 0) { + devdbg(dev,"invalid rx length %d", skb->len); + return 0; + } + return 1; +} + +static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb, + unsigned flags) +{ + int padlen; + int headroom = skb_headroom(skb); + int tailroom = skb_tailroom(skb); + u32 packet_len; + u32 padbytes = 0xffff0000; + + padlen = ((skb->len + 4) % 512) ? 0 : 4; + + if ((!skb_cloned(skb)) + && ((headroom + tailroom) >= (4 + padlen))) { + if ((headroom < 4) || (tailroom < padlen)) { + skb->data = memmove(skb->head + 4, skb->data, skb->len); + skb->tail = skb->data + skb->len; + } + } else { + struct sk_buff *skb2; + skb2 = skb_copy_expand(skb, 4, padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + skb_push(skb, 4); + packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); + memcpy(skb->data, &packet_len, sizeof(packet_len)); + + if ((skb->len % 512) == 0) { + memcpy( skb->tail, &padbytes, sizeof(padbytes)); + skb_put(skb, sizeof(padbytes)); + } + return skb; +} + +static int ax88772_link_reset(struct usbnet *dev) +{ + u16 lpa; + u16 adv; + u16 res; + u16 mode; + + mode = AX88772_MEDIUM_DEFAULT; + lpa = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA); + adv = ax8817x_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE); + res = mii_nway_result(lpa|adv); + + if ((res & LPA_DUPLEX) == 0) + mode &= ~AX88772_MEDIUM_FULL_DUPLEX; + if ((res & LPA_100) == 0) + mode &= ~AX88772_MEDIUM_100MB; + ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); + + return 0; +} + +static const struct driver_info ax8817x_info = { + .description = "ASIX AX8817x USB 2.0 Ethernet", + .bind = ax8817x_bind, + .status = ax8817x_status, + .link_reset = ax88172_link_reset, + .reset = ax88172_link_reset, + .flags = FLAG_ETHER, + .data = 0x00130103, +}; + +static const struct driver_info dlink_dub_e100_info = { + .description = "DLink DUB-E100 USB Ethernet", + .bind = ax8817x_bind, + .status = ax8817x_status, + .link_reset = ax88172_link_reset, + .reset = ax88172_link_reset, + .flags = FLAG_ETHER, + .data = 0x009f9d9f, +}; + +static const struct driver_info netgear_fa120_info = { + .description = "Netgear FA-120 USB Ethernet", + .bind = ax8817x_bind, + .status = ax8817x_status, + .link_reset = ax88172_link_reset, + .reset = ax88172_link_reset, + .flags = FLAG_ETHER, + .data = 0x00130103, +}; + +static const struct driver_info hawking_uf200_info = { + .description = "Hawking UF200 USB Ethernet", + .bind = ax8817x_bind, + .status = ax8817x_status, + .link_reset = ax88172_link_reset, + .reset = ax88172_link_reset, + .flags = FLAG_ETHER, + .data = 0x001f1d1f, +}; + +static const struct driver_info ax88772_info = { + .description = "ASIX AX88772 USB 2.0 Ethernet", + .bind = ax88772_bind, + .status = ax8817x_status, + .link_reset = ax88772_link_reset, + .reset = ax88772_link_reset, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88772_rx_fixup, + .tx_fixup = ax88772_tx_fixup, + .data = 0x00130103, +}; + +static const struct usb_device_id products [] = { +{ + // Linksys USB200M + USB_DEVICE (0x077b, 0x2226), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Netgear FA120 + USB_DEVICE (0x0846, 0x1040), + .driver_info = (unsigned long) &netgear_fa120_info, +}, { + // DLink DUB-E100 + USB_DEVICE (0x2001, 0x1a00), + .driver_info = (unsigned long) &dlink_dub_e100_info, +}, { + // Intellinet, ST Lab USB Ethernet + USB_DEVICE (0x0b95, 0x1720), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Hawking UF200, TrendNet TU2-ET100 + USB_DEVICE (0x07b8, 0x420a), + .driver_info = (unsigned long) &hawking_uf200_info, +}, { + // Billionton Systems, USB2AR + USB_DEVICE (0x08dd, 0x90ff), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // ATEN UC210T + USB_DEVICE (0x0557, 0x2009), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Buffalo LUA-U2-KTX + USB_DEVICE (0x0411, 0x003d), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" + USB_DEVICE (0x6189, 0x182d), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // corega FEther USB2-TX + USB_DEVICE (0x07aa, 0x0017), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // Surecom EP-1427X-2 + USB_DEVICE (0x1189, 0x0893), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // goodway corp usb gwusb2e + USB_DEVICE (0x1631, 0x6200), + .driver_info = (unsigned long) &ax8817x_info, +}, { + // ASIX AX88772 10/100 + USB_DEVICE (0x0b95, 0x7720), + .driver_info = (unsigned long) &ax88772_info, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver asix_driver = { + .owner = THIS_MODULE, + .name = "asix", + .id_table = products, + .probe = usbnet_probe, + .suspend = usbnet_suspend, + .resume = usbnet_resume, + .disconnect = usbnet_disconnect, +}; + +static int __init asix_init(void) +{ + return usb_register(&asix_driver); +} +module_init(asix_init); + +static void __exit asix_exit(void) +{ + usb_deregister(&asix_driver); +} +module_exit(asix_exit); + +MODULE_AUTHOR("David Hollis"); +MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/usb/net/catc.c b/drivers/usb/net/catc.c index c8be912f24e..37ef365a247 100644 --- a/drivers/usb/net/catc.c +++ b/drivers/usb/net/catc.c @@ -383,7 +383,6 @@ static void catc_tx_done(struct urb *urb, struct pt_regs *regs) if (urb->status == -ECONNRESET) { dbg("Tx Reset."); - urb->transfer_flags &= ~URB_ASYNC_UNLINK; urb->status = 0; catc->netdev->trans_start = jiffies; catc->stats.tx_errors++; @@ -445,7 +444,6 @@ static void catc_tx_timeout(struct net_device *netdev) struct catc *catc = netdev_priv(netdev); warn("Transmit timed out."); - catc->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(catc->tx_urb); } diff --git a/drivers/usb/net/cdc_ether.c b/drivers/usb/net/cdc_ether.c new file mode 100644 index 00000000000..652b04bbf6a --- /dev/null +++ b/drivers/usb/net/cdc_ether.c @@ -0,0 +1,509 @@ +/* + * CDC Ethernet based networking peripherals + * Copyright (C) 2003-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ctype.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> +#include <linux/usb_cdc.h> + +#include "usbnet.h" + + +/* + * probes control interface, claims data interface, collects the bulk + * endpoints, activates data interface (if needed), maybe sets MTU. + * all pure cdc, except for certain firmware workarounds, and knowing + * that rndis uses one different rule. + */ +int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) +{ + u8 *buf = intf->cur_altsetting->extra; + int len = intf->cur_altsetting->extralen; + struct usb_interface_descriptor *d; + struct cdc_state *info = (void *) &dev->data; + int status; + int rndis; + struct usb_driver *driver = driver_of(intf); + + if (sizeof dev->data < sizeof *info) + return -EDOM; + + /* expect strict spec conformance for the descriptors, but + * cope with firmware which stores them in the wrong place + */ + if (len == 0 && dev->udev->actconfig->extralen) { + /* Motorola SB4100 (and others: Brad Hards says it's + * from a Broadcom design) put CDC descriptors here + */ + buf = dev->udev->actconfig->extra; + len = dev->udev->actconfig->extralen; + if (len) + dev_dbg(&intf->dev, + "CDC descriptors on config\n"); + } + + /* this assumes that if there's a non-RNDIS vendor variant + * of cdc-acm, it'll fail RNDIS requests cleanly. + */ + rndis = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff); + + memset(info, 0, sizeof *info); + info->control = intf; + while (len > 3) { + if (buf [1] != USB_DT_CS_INTERFACE) + goto next_desc; + + /* use bDescriptorSubType to identify the CDC descriptors. + * We expect devices with CDC header and union descriptors. + * For CDC Ethernet we need the ethernet descriptor. + * For RNDIS, ignore two (pointless) CDC modem descriptors + * in favor of a complicated OID-based RPC scheme doing what + * CDC Ethernet achieves with a simple descriptor. + */ + switch (buf [2]) { + case USB_CDC_HEADER_TYPE: + if (info->header) { + dev_dbg(&intf->dev, "extra CDC header\n"); + goto bad_desc; + } + info->header = (void *) buf; + if (info->header->bLength != sizeof *info->header) { + dev_dbg(&intf->dev, "CDC header len %u\n", + info->header->bLength); + goto bad_desc; + } + break; + case USB_CDC_UNION_TYPE: + if (info->u) { + dev_dbg(&intf->dev, "extra CDC union\n"); + goto bad_desc; + } + info->u = (void *) buf; + if (info->u->bLength != sizeof *info->u) { + dev_dbg(&intf->dev, "CDC union len %u\n", + info->u->bLength); + goto bad_desc; + } + + /* we need a master/control interface (what we're + * probed with) and a slave/data interface; union + * descriptors sort this all out. + */ + info->control = usb_ifnum_to_if(dev->udev, + info->u->bMasterInterface0); + info->data = usb_ifnum_to_if(dev->udev, + info->u->bSlaveInterface0); + if (!info->control || !info->data) { + dev_dbg(&intf->dev, + "master #%u/%p slave #%u/%p\n", + info->u->bMasterInterface0, + info->control, + info->u->bSlaveInterface0, + info->data); + goto bad_desc; + } + if (info->control != intf) { + dev_dbg(&intf->dev, "bogus CDC Union\n"); + /* Ambit USB Cable Modem (and maybe others) + * interchanges master and slave interface. + */ + if (info->data == intf) { + info->data = info->control; + info->control = intf; + } else + goto bad_desc; + } + + /* a data interface altsetting does the real i/o */ + d = &info->data->cur_altsetting->desc; + if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { + dev_dbg(&intf->dev, "slave class %u\n", + d->bInterfaceClass); + goto bad_desc; + } + break; + case USB_CDC_ETHERNET_TYPE: + if (info->ether) { + dev_dbg(&intf->dev, "extra CDC ether\n"); + goto bad_desc; + } + info->ether = (void *) buf; + if (info->ether->bLength != sizeof *info->ether) { + dev_dbg(&intf->dev, "CDC ether len %u\n", + info->ether->bLength); + goto bad_desc; + } + dev->hard_mtu = le16_to_cpu( + info->ether->wMaxSegmentSize); + /* because of Zaurus, we may be ignoring the host + * side link address we were given. + */ + break; + } +next_desc: + len -= buf [0]; /* bLength */ + buf += buf [0]; + } + + if (!info->header || !info->u || (!rndis && !info->ether)) { + dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n", + info->header ? "" : "header ", + info->u ? "" : "union ", + info->ether ? "" : "ether "); + goto bad_desc; + } + + /* claim data interface and set it up ... with side effects. + * network traffic can't flow until an altsetting is enabled. + */ + status = usb_driver_claim_interface(driver, info->data, dev); + if (status < 0) + return status; + status = usbnet_get_endpoints(dev, info->data); + if (status < 0) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface(driver, info->data); + return status; + } + + /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ + dev->status = NULL; + if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { + struct usb_endpoint_descriptor *desc; + + dev->status = &info->control->cur_altsetting->endpoint [0]; + desc = &dev->status->desc; + if (desc->bmAttributes != USB_ENDPOINT_XFER_INT + || !(desc->bEndpointAddress & USB_DIR_IN) + || (le16_to_cpu(desc->wMaxPacketSize) + < sizeof(struct usb_cdc_notification)) + || !desc->bInterval) { + dev_dbg(&intf->dev, "bad notification endpoint\n"); + dev->status = NULL; + } + } + if (rndis && !dev->status) { + dev_dbg(&intf->dev, "missing RNDIS status endpoint\n"); + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface(driver, info->data); + return -ENODEV; + } + return 0; + +bad_desc: + dev_info(&dev->udev->dev, "bad CDC descriptors\n"); + return -ENODEV; +} +EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); + +void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) +{ + struct cdc_state *info = (void *) &dev->data; + struct usb_driver *driver = driver_of(intf); + + /* disconnect master --> disconnect slave */ + if (intf == info->control && info->data) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface(driver, info->data); + info->data = NULL; + } + + /* and vice versa (just in case) */ + else if (intf == info->data && info->control) { + /* ensure immediate exit from usbnet_disconnect */ + usb_set_intfdata(info->control, NULL); + usb_driver_release_interface(driver, info->control); + info->control = NULL; + } +} +EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); + + +/*------------------------------------------------------------------------- + * + * Communications Device Class, Ethernet Control model + * + * Takes two interfaces. The DATA interface is inactive till an altsetting + * is selected. Configuration data includes class descriptors. There's + * an optional status endpoint on the control interface. + * + * This should interop with whatever the 2.4 "CDCEther.c" driver + * (by Brad Hards) talked with, with more functionality. + * + *-------------------------------------------------------------------------*/ + +static void dumpspeed(struct usbnet *dev, __le32 *speeds) +{ + if (netif_msg_timer(dev)) + devinfo(dev, "link speeds: %u kbps up, %u kbps down", + __le32_to_cpu(speeds[0]) / 1000, + __le32_to_cpu(speeds[1]) / 1000); +} + +static void cdc_status(struct usbnet *dev, struct urb *urb) +{ + struct usb_cdc_notification *event; + + if (urb->actual_length < sizeof *event) + return; + + /* SPEED_CHANGE can get split into two 8-byte packets */ + if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) { + dumpspeed(dev, (__le32 *) urb->transfer_buffer); + return; + } + + event = urb->transfer_buffer; + switch (event->bNotificationType) { + case USB_CDC_NOTIFY_NETWORK_CONNECTION: + if (netif_msg_timer(dev)) + devdbg(dev, "CDC: carrier %s", + event->wValue ? "on" : "off"); + if (event->wValue) + netif_carrier_on(dev->net); + else + netif_carrier_off(dev->net); + break; + case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ + if (netif_msg_timer(dev)) + devdbg(dev, "CDC: speed change (len %d)", + urb->actual_length); + if (urb->actual_length != (sizeof *event + 8)) + set_bit(EVENT_STS_SPLIT, &dev->flags); + else + dumpspeed(dev, (__le32 *) &event[1]); + break; + /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS), + * but there are no standard formats for the response data. + */ + default: + deverr(dev, "CDC: unexpected notification %02x!", + event->bNotificationType); + break; + } +} + +static u8 nibble(unsigned char c) +{ + if (likely(isdigit(c))) + return c - '0'; + c = toupper(c); + if (likely(isxdigit(c))) + return 10 + c - 'A'; + return 0; +} + +static inline int +get_ethernet_addr(struct usbnet *dev, struct usb_cdc_ether_desc *e) +{ + int tmp, i; + unsigned char buf [13]; + + tmp = usb_string(dev->udev, e->iMACAddress, buf, sizeof buf); + if (tmp != 12) { + dev_dbg(&dev->udev->dev, + "bad MAC string %d fetch, %d\n", e->iMACAddress, tmp); + if (tmp >= 0) + tmp = -EINVAL; + return tmp; + } + for (i = tmp = 0; i < 6; i++, tmp += 2) + dev->net->dev_addr [i] = + (nibble(buf [tmp]) << 4) + nibble(buf [tmp + 1]); + return 0; +} + +static int cdc_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int status; + struct cdc_state *info = (void *) &dev->data; + + status = usbnet_generic_cdc_bind(dev, intf); + if (status < 0) + return status; + + status = get_ethernet_addr(dev, info->ether); + if (status < 0) { + usb_set_intfdata(info->data, NULL); + usb_driver_release_interface(driver_of(intf), info->data); + return status; + } + + /* FIXME cdc-ether has some multicast code too, though it complains + * in routine cases. info->ether describes the multicast support. + * Implement that here, manipulating the cdc filter as needed. + */ + return 0; +} + +static const struct driver_info cdc_info = { + .description = "CDC Ethernet Device", + .flags = FLAG_ETHER, + // .check_connect = cdc_check_connect, + .bind = cdc_bind, + .unbind = usbnet_cdc_unbind, + .status = cdc_status, +}; + +/*-------------------------------------------------------------------------*/ + + +static const struct usb_device_id products [] = { +/* + * BLACKLIST !! + * + * First blacklist any products that are egregiously nonconformant + * with the CDC Ethernet specs. Minor braindamage we cope with; when + * they're not even trying, needing a separate driver is only the first + * of the differences to show up. + */ + +#define ZAURUS_MASTER_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE + +/* SA-1100 based Sharp Zaurus ("collie"), or compatible; + * wire-incompatible with true CDC Ethernet implementations. + * (And, it seems, needlessly so...) + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8004, + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, + +/* PXA-25x based Sharp Zaurii. Note that it seems some of these + * (later models especially) may have shipped only with firmware + * advertising false "CDC MDLM" compatibility ... but we're not + * clear which models did that, so for now let's assume the worst. + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9031, /* C-750 C-760 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + /* reported with some C860 units */ + .idProduct = 0x9050, /* C-860 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = 0, +}, + +/* + * WHITELIST!!! + * + * CDC Ether uses two interfaces, not necessarily consecutive. + * We match the main interface, ignoring the optional device + * class so we could handle devices that aren't exclusively + * CDC ether. + * + * NOTE: this match must come AFTER entries blacklisting devices + * because of bugs/quirks in a given product (like Zaurus, above). + */ +{ + USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &cdc_info, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver cdc_driver = { + .owner = THIS_MODULE, + .name = "cdc_ether", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + + +static int __init cdc_init(void) +{ + BUG_ON((sizeof(((struct usbnet *)0)->data) + < sizeof(struct cdc_state))); + + return usb_register(&cdc_driver); +} +module_init(cdc_init); + +static void __exit cdc_exit(void) +{ + usb_deregister(&cdc_driver); +} +module_exit(cdc_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("USB CDC Ethernet devices"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/cdc_subset.c b/drivers/usb/net/cdc_subset.c new file mode 100644 index 00000000000..f1730b685fd --- /dev/null +++ b/drivers/usb/net/cdc_subset.c @@ -0,0 +1,335 @@ +/* + * Simple "CDC Subset" USB Networking Links + * Copyright (C) 2000-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/kmod.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> + +#include "usbnet.h" + + +/* + * This supports simple USB network links that don't require any special + * framing or hardware control operations. The protocol used here is a + * strict subset of CDC Ethernet, with three basic differences reflecting + * the goal that almost any hardware should run it: + * + * - Minimal runtime control: one interface, no altsettings, and + * no vendor or class specific control requests. If a device is + * configured, it is allowed to exchange packets with the host. + * Fancier models would mean not working on some hardware. + * + * - Minimal manufacturing control: no IEEE "Organizationally + * Unique ID" required, or an EEPROMs to store one. Each host uses + * one random "locally assigned" Ethernet address instead, which can + * of course be overridden using standard tools like "ifconfig". + * (With 2^46 such addresses, same-net collisions are quite rare.) + * + * - There is no additional framing data for USB. Packets are written + * exactly as in CDC Ethernet, starting with an Ethernet header and + * terminated by a short packet. However, the host will never send a + * zero length packet; some systems can't handle those robustly. + * + * Anything that can transmit and receive USB bulk packets can implement + * this protocol. That includes both smart peripherals and quite a lot + * of "host-to-host" USB cables (which embed two devices back-to-back). + * + * Note that although Linux may use many of those host-to-host links + * with this "cdc_subset" framing, that doesn't mean there may not be a + * better approach. Handling the "other end unplugs/replugs" scenario + * well tends to require chip-specific vendor requests. Also, Windows + * peers at the other end of host-to-host cables may expect their own + * framing to be used rather than this "cdc_subset" model. + */ + +#if defined(CONFIG_USB_EPSON2888) || defined(CONFIG_USB_ARMLINUX) +/* PDA style devices are always connected if present */ +static int always_connected (struct usbnet *dev) +{ + return 0; +} +#endif + +#ifdef CONFIG_USB_ALI_M5632 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * ALi M5632 driver ... does high speed + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info ali_m5632_info = { + .description = "ALi M5632", +}; + + +#endif + + +#ifdef CONFIG_USB_AN2720 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * AnchorChips 2720 driver ... http://www.cypress.com + * + * This doesn't seem to have a way to detect whether the peer is + * connected, or need any reset handshaking. It's got pretty big + * internal buffers (handles most of a frame's worth of data). + * Chip data sheets don't describe any vendor control messages. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info an2720_info = { + .description = "AnchorChips/Cypress 2720", + // no reset available! + // no check_connect available! + + .in = 2, .out = 2, // direction distinguishes these +}; + +#endif /* CONFIG_USB_AN2720 */ + + +#ifdef CONFIG_USB_BELKIN +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Belkin F5U104 ... two NetChip 2280 devices + Atmel AVR microcontroller + * + * ... also two eTEK designs, including one sold as "Advance USBNET" + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info belkin_info = { + .description = "Belkin, eTEK, or compatible", +}; + +#endif /* CONFIG_USB_BELKIN */ + + + +#ifdef CONFIG_USB_EPSON2888 +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * EPSON USB clients + * + * This is the same idea as Linux PDAs (below) except the firmware in the + * device might not be Tux-powered. Epson provides reference firmware that + * implements this interface. Product developers can reuse or modify that + * code, such as by using their own product and vendor codes. + * + * Support was from Juro Bystricky <bystricky.juro@erd.epson.com> + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info epson2888_info = { + .description = "Epson USB Device", + .check_connect = always_connected, + + .in = 4, .out = 3, +}; + +#endif /* CONFIG_USB_EPSON2888 */ + + +#ifdef CONFIG_USB_KC2190 +#define HAVE_HARDWARE +static const struct driver_info kc2190_info = { + .description = "KC Technology KC-190", +}; +#endif /* CONFIG_USB_KC2190 */ + + +#ifdef CONFIG_USB_ARMLINUX +#define HAVE_HARDWARE + +/*------------------------------------------------------------------------- + * + * Intel's SA-1100 chip integrates basic USB support, and is used + * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more. + * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to + * network using minimal USB framing data. + * + * This describes the driver currently in standard ARM Linux kernels. + * The Zaurus uses a different driver (see later). + * + * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support + * and different USB endpoint numbering than the SA1100 devices. The + * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100 + * so we rely on the endpoint descriptors. + * + *-------------------------------------------------------------------------*/ + +static const struct driver_info linuxdev_info = { + .description = "Linux Device", + .check_connect = always_connected, +}; + +static const struct driver_info yopy_info = { + .description = "Yopy", + .check_connect = always_connected, +}; + +static const struct driver_info blob_info = { + .description = "Boot Loader OBject", + .check_connect = always_connected, +}; + +#endif /* CONFIG_USB_ARMLINUX */ + + +/*-------------------------------------------------------------------------*/ + +#ifndef HAVE_HARDWARE +#error You need to configure some hardware for this driver +#endif + +/* + * chip vendor names won't normally be on the cables, and + * may not be on the device. + */ + +static const struct usb_device_id products [] = { + +#ifdef CONFIG_USB_ALI_M5632 +{ + USB_DEVICE (0x0402, 0x5632), // ALi defaults + .driver_info = (unsigned long) &ali_m5632_info, +}, +#endif + +#ifdef CONFIG_USB_AN2720 +{ + USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults + .driver_info = (unsigned long) &an2720_info, +}, { + USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET + .driver_info = (unsigned long) &an2720_info, +}, +#endif + +#ifdef CONFIG_USB_BELKIN +{ + USB_DEVICE (0x050d, 0x0004), // Belkin + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x056c, 0x8100), // eTEK + .driver_info = (unsigned long) &belkin_info, +}, { + USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK) + .driver_info = (unsigned long) &belkin_info, +}, +#endif + +#ifdef CONFIG_USB_EPSON2888 +{ + USB_DEVICE (0x0525, 0x2888), // EPSON USB client + .driver_info = (unsigned long) &epson2888_info, +}, +#endif + +#ifdef CONFIG_USB_KC2190 +{ + USB_DEVICE (0x050f, 0x0190), // KC-190 + .driver_info = (unsigned long) &kc2190_info, +}, +#endif + +#ifdef CONFIG_USB_ARMLINUX +/* + * SA-1100 using standard ARM Linux kernels, or compatible. + * Often used when talking to Linux PDAs (iPaq, Yopy, etc). + * The sa-1100 "usb-eth" driver handles the basic framing. + * + * PXA25x or PXA210 ... these use a "usb-eth" driver much like + * the sa1100 one, but hardware uses different endpoint numbers. + * + * Or the Linux "Ethernet" gadget on hardware that can't talk + * CDC Ethernet (e.g., no altsettings), in either of two modes: + * - acting just like the old "usb-eth" firmware, though + * the implementation is different + * - supporting RNDIS as the first/default configuration for + * MS-Windows interop; Linux needs to use the other config + */ +{ + // 1183 = 0x049F, both used as hex values? + // Compaq "Itsy" vendor/product id + USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible + .driver_info = (unsigned long) &linuxdev_info, +}, { + USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy" + .driver_info = (unsigned long) &yopy_info, +}, { + USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader + .driver_info = (unsigned long) &blob_info, +}, { + // Linux Ethernet/RNDIS gadget on pxa210/25x/26x, second config + // e.g. Gumstix, current OpenZaurus, ... + USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203), + .driver_info = (unsigned long) &linuxdev_info, +}, +#endif + + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +/*-------------------------------------------------------------------------*/ + +static struct usb_driver cdc_subset_driver = { + .owner = THIS_MODULE, + .name = "cdc_subset", + .probe = usbnet_probe, + .suspend = usbnet_suspend, + .resume = usbnet_resume, + .disconnect = usbnet_disconnect, + .id_table = products, +}; + +static int __init cdc_subset_init(void) +{ + return usb_register(&cdc_subset_driver); +} +module_init(cdc_subset_init); + +static void __exit cdc_subset_exit(void) +{ + usb_deregister(&cdc_subset_driver); +} +module_exit(cdc_subset_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("Simple 'CDC Subset' USB networking links"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/gl620a.c b/drivers/usb/net/gl620a.c new file mode 100644 index 00000000000..c8763ae33c7 --- /dev/null +++ b/drivers/usb/net/gl620a.c @@ -0,0 +1,407 @@ +/* + * GeneSys GL620USB-A based links + * Copyright (C) 2001 by Jiun-Jie Huang <huangjj@genesyslogic.com.tw> + * Copyright (C) 2001 by Stanislav Brabec <utx@penguin.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> + +#include "usbnet.h" + + +/* + * GeneSys GL620USB-A (www.genesyslogic.com.tw) + * + * ... should partially interop with the Win32 driver for this hardware. + * The GeneSys docs imply there's some NDIS issue motivating this framing. + * + * Some info from GeneSys: + * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk. + * (Some cables, like the BAFO-100c, use the half duplex version.) + * - For the full duplex model, the low bit of the version code says + * which side is which ("left/right"). + * - For the half duplex type, a control/interrupt handshake settles + * the transfer direction. (That's disabled here, partially coded.) + * A control URB would block until other side writes an interrupt. + * + * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw> + * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>. + */ + +// control msg write command +#define GENELINK_CONNECT_WRITE 0xF0 +// interrupt pipe index +#define GENELINK_INTERRUPT_PIPE 0x03 +// interrupt read buffer size +#define INTERRUPT_BUFSIZE 0x08 +// interrupt pipe interval value +#define GENELINK_INTERRUPT_INTERVAL 0x10 +// max transmit packet number per transmit +#define GL_MAX_TRANSMIT_PACKETS 32 +// max packet length +#define GL_MAX_PACKET_LEN 1514 +// max receive buffer size +#define GL_RCV_BUF_SIZE \ + (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4) + +struct gl_packet { + u32 packet_length; + char packet_data [1]; +}; + +struct gl_header { + u32 packet_count; + struct gl_packet packets; +}; + +#ifdef GENELINK_ACK + +// FIXME: this code is incomplete, not debugged; it doesn't +// handle interrupts correctly; it should use the generic +// status IRQ code (which didn't exist back in 2001). + +struct gl_priv { + struct urb *irq_urb; + char irq_buf [INTERRUPT_BUFSIZE]; +}; + +static inline int gl_control_write(struct usbnet *dev, u8 request, u16 value) +{ + int retval; + + retval = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + request, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + value, + 0, // index + 0, // data buffer + 0, // size + USB_CTRL_SET_TIMEOUT); + return retval; +} + +static void gl_interrupt_complete(struct urb *urb, struct pt_regs *regs) +{ + int status = urb->status; + + switch (status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, status); + return; + default: + dbg("%s - nonzero urb status received: %d", + __FUNCTION__, urb->status); + } + + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) + err("%s - usb_submit_urb failed with result %d", + __FUNCTION__, status); +} + +static int gl_interrupt_read(struct usbnet *dev) +{ + struct gl_priv *priv = dev->priv_data; + int retval; + + // issue usb interrupt read + if (priv && priv->irq_urb) { + // submit urb + if ((retval = usb_submit_urb(priv->irq_urb, GFP_KERNEL)) != 0) + dbg("gl_interrupt_read: submit fail - %X...", retval); + else + dbg("gl_interrupt_read: submit success..."); + } + + return 0; +} + +// check whether another side is connected +static int genelink_check_connect(struct usbnet *dev) +{ + int retval; + + dbg("genelink_check_connect..."); + + // detect whether another side is connected + if ((retval = gl_control_write(dev, GENELINK_CONNECT_WRITE, 0)) != 0) { + dbg("%s: genelink_check_connect write fail - %X", + dev->net->name, retval); + return retval; + } + + // usb interrupt read to ack another side + if ((retval = gl_interrupt_read(dev)) != 0) { + dbg("%s: genelink_check_connect read fail - %X", + dev->net->name, retval); + return retval; + } + + dbg("%s: genelink_check_connect read success", dev->net->name); + return 0; +} + +// allocate and initialize the private data for genelink +static int genelink_init(struct usbnet *dev) +{ + struct gl_priv *priv; + + // allocate the private data structure + if ((priv = kmalloc(sizeof *priv, GFP_KERNEL)) == 0) { + dbg("%s: cannot allocate private data per device", + dev->net->name); + return -ENOMEM; + } + + // allocate irq urb + if ((priv->irq_urb = usb_alloc_urb(0, GFP_KERNEL)) == 0) { + dbg("%s: cannot allocate private irq urb per device", + dev->net->name); + kfree(priv); + return -ENOMEM; + } + + // fill irq urb + usb_fill_int_urb(priv->irq_urb, dev->udev, + usb_rcvintpipe(dev->udev, GENELINK_INTERRUPT_PIPE), + priv->irq_buf, INTERRUPT_BUFSIZE, + gl_interrupt_complete, 0, + GENELINK_INTERRUPT_INTERVAL); + + // set private data pointer + dev->priv_data = priv; + + return 0; +} + +// release the private data +static int genelink_free(struct usbnet *dev) +{ + struct gl_priv *priv = dev->priv_data; + + if (!priv) + return 0; + +// FIXME: can't cancel here; it's synchronous, and +// should have happened earlier in any case (interrupt +// handling needs to be generic) + + // cancel irq urb first + usb_kill_urb(priv->irq_urb); + + // free irq urb + usb_free_urb(priv->irq_urb); + + // free the private data structure + kfree(priv); + + return 0; +} + +#endif + +static int genelink_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + struct gl_header *header; + struct gl_packet *packet; + struct sk_buff *gl_skb; + u32 size; + + header = (struct gl_header *) skb->data; + + // get the packet count of the received skb + le32_to_cpus(&header->packet_count); + if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS) + || (header->packet_count < 0)) { + dbg("genelink: invalid received packet count %d", + header->packet_count); + return 0; + } + + // set the current packet pointer to the first packet + packet = &header->packets; + + // decrement the length for the packet count size 4 bytes + skb_pull(skb, 4); + + while (header->packet_count > 1) { + // get the packet length + size = le32_to_cpu(packet->packet_length); + + // this may be a broken packet + if (size > GL_MAX_PACKET_LEN) { + dbg("genelink: invalid rx length %d", size); + return 0; + } + + // allocate the skb for the individual packet + gl_skb = alloc_skb(size, GFP_ATOMIC); + if (gl_skb) { + + // copy the packet data to the new skb + memcpy(skb_put(gl_skb, size), + packet->packet_data, size); + usbnet_skb_return(dev, gl_skb); + } + + // advance to the next packet + packet = (struct gl_packet *) + &packet->packet_data [size]; + header->packet_count--; + + // shift the data pointer to the next gl_packet + skb_pull(skb, size + 4); + } + + // skip the packet length field 4 bytes + skb_pull(skb, 4); + + if (skb->len > GL_MAX_PACKET_LEN) { + dbg("genelink: invalid rx length %d", skb->len); + return 0; + } + return 1; +} + +static struct sk_buff * +genelink_tx_fixup(struct usbnet *dev, struct sk_buff *skb, unsigned flags) +{ + int padlen; + int length = skb->len; + int headroom = skb_headroom(skb); + int tailroom = skb_tailroom(skb); + u32 *packet_count; + u32 *packet_len; + + // FIXME: magic numbers, bleech + padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1; + + if ((!skb_cloned(skb)) + && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) { + if ((headroom < (4 + 4*1)) || (tailroom < padlen)) { + skb->data = memmove(skb->head + (4 + 4*1), + skb->data, skb->len); + skb->tail = skb->data + skb->len; + } + } else { + struct sk_buff *skb2; + skb2 = skb_copy_expand(skb, (4 + 4*1) , padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + // attach the packet count to the header + packet_count = (u32 *) skb_push(skb, (4 + 4*1)); + packet_len = packet_count + 1; + + *packet_count = cpu_to_le32(1); + *packet_len = cpu_to_le32(length); + + // add padding byte + if ((skb->len % dev->maxpacket) == 0) + skb_put(skb, 1); + + return skb; +} + +static int genelink_bind(struct usbnet *dev, struct usb_interface *intf) +{ + dev->hard_mtu = GL_RCV_BUF_SIZE; + dev->net->hard_header_len += 4; + dev->in = usb_rcvbulkpipe(dev->udev, dev->driver_info->in); + dev->out = usb_sndbulkpipe(dev->udev, dev->driver_info->out); + return 0; +} + +static const struct driver_info genelink_info = { + .description = "Genesys GeneLink", + .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT, + .bind = genelink_bind, + .rx_fixup = genelink_rx_fixup, + .tx_fixup = genelink_tx_fixup, + + .in = 1, .out = 2, + +#ifdef GENELINK_ACK + .check_connect =genelink_check_connect, +#endif +}; + +static const struct usb_device_id products [] = { + +{ + USB_DEVICE(0x05e3, 0x0502), // GL620USB-A + .driver_info = (unsigned long) &genelink_info, +}, + /* NOT: USB_DEVICE(0x05e3, 0x0501), // GL620USB + * that's half duplex, not currently supported + */ + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver gl620a_driver = { + .owner = THIS_MODULE, + .name = "gl620a", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init usbnet_init(void) +{ + return usb_register(&gl620a_driver); +} +module_init(usbnet_init); + +static void __exit usbnet_exit(void) +{ + usb_deregister(&gl620a_driver); +} +module_exit(usbnet_exit); + +MODULE_AUTHOR("Jiun-Jie Huang"); +MODULE_DESCRIPTION("GL620-USB-A Host-to-Host Link cables"); +MODULE_LICENSE("GPL"); + diff --git a/drivers/usb/net/kaweth.c b/drivers/usb/net/kaweth.c index 7ffa99b9760..e04b0ce3611 100644 --- a/drivers/usb/net/kaweth.c +++ b/drivers/usb/net/kaweth.c @@ -787,7 +787,6 @@ static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) kaweth_usb_transmit_complete, kaweth); kaweth->end = 0; - kaweth->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) { diff --git a/drivers/usb/net/net1080.c b/drivers/usb/net/net1080.c new file mode 100644 index 00000000000..a4309c4a491 --- /dev/null +++ b/drivers/usb/net/net1080.c @@ -0,0 +1,622 @@ +/* + * Net1080 based USB host-to-host cables + * Copyright (C) 2000-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> + +#include <asm/unaligned.h> + +#include "usbnet.h" + + +/* + * Netchip 1080 driver ... http://www.netchip.com + * (Sept 2004: End-of-life announcement has been sent.) + * Used in (some) LapLink cables + */ + +#define frame_errors data[1] + +/* + * NetChip framing of ethernet packets, supporting additional error + * checks for links that may drop bulk packets from inside messages. + * Odd USB length == always short read for last usb packet. + * - nc_header + * - Ethernet header (14 bytes) + * - payload + * - (optional padding byte, if needed so length becomes odd) + * - nc_trailer + * + * This framing is to be avoided for non-NetChip devices. + */ + +struct nc_header { // packed: + __le16 hdr_len; // sizeof nc_header (LE, all) + __le16 packet_len; // payload size (including ethhdr) + __le16 packet_id; // detects dropped packets +#define MIN_HEADER 6 + + // all else is optional, and must start with: + // __le16 vendorId; // from usb-if + // __le16 productId; +} __attribute__((__packed__)); + +#define PAD_BYTE ((unsigned char)0xAC) + +struct nc_trailer { + __le16 packet_id; +} __attribute__((__packed__)); + +// packets may use FLAG_FRAMING_NC and optional pad +#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \ + + sizeof (struct ethhdr) \ + + (mtu) \ + + 1 \ + + sizeof (struct nc_trailer)) + +#define MIN_FRAMED FRAMED_SIZE(0) + +/* packets _could_ be up to 64KB... */ +#define NC_MAX_PACKET 32767 + + +/* + * Zero means no timeout; else, how long a 64 byte bulk packet may be queued + * before the hardware drops it. If that's done, the driver will need to + * frame network packets to guard against the dropped USB packets. The win32 + * driver sets this for both sides of the link. + */ +#define NC_READ_TTL_MS ((u8)255) // ms + +/* + * We ignore most registers and EEPROM contents. + */ +#define REG_USBCTL ((u8)0x04) +#define REG_TTL ((u8)0x10) +#define REG_STATUS ((u8)0x11) + +/* + * Vendor specific requests to read/write data + */ +#define REQUEST_REGISTER ((u8)0x10) +#define REQUEST_EEPROM ((u8)0x11) + +static int +nc_vendor_read(struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr) +{ + int status = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, regnum, + retval_ptr, sizeof *retval_ptr, + USB_CTRL_GET_TIMEOUT); + if (status > 0) + status = 0; + if (!status) + le16_to_cpus(retval_ptr); + return status; +} + +static inline int +nc_register_read(struct usbnet *dev, u8 regnum, u16 *retval_ptr) +{ + return nc_vendor_read(dev, REQUEST_REGISTER, regnum, retval_ptr); +} + +// no retval ... can become async, usable in_interrupt() +static void +nc_vendor_write(struct usbnet *dev, u8 req, u8 regnum, u16 value) +{ + usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, regnum, + NULL, 0, // data is in setup packet + USB_CTRL_SET_TIMEOUT); +} + +static inline void +nc_register_write(struct usbnet *dev, u8 regnum, u16 value) +{ + nc_vendor_write(dev, REQUEST_REGISTER, regnum, value); +} + + +#if 0 +static void nc_dump_registers(struct usbnet *dev) +{ + u8 reg; + u16 *vp = kmalloc(sizeof (u16)); + + if (!vp) { + dbg("no memory?"); + return; + } + + dbg("%s registers:", dev->net->name); + for (reg = 0; reg < 0x20; reg++) { + int retval; + + // reading some registers is trouble + if (reg >= 0x08 && reg <= 0xf) + continue; + if (reg >= 0x12 && reg <= 0x1e) + continue; + + retval = nc_register_read(dev, reg, vp); + if (retval < 0) + dbg("%s reg [0x%x] ==> error %d", + dev->net->name, reg, retval); + else + dbg("%s reg [0x%x] = 0x%x", + dev->net->name, reg, *vp); + } + kfree(vp); +} +#endif + + +/*-------------------------------------------------------------------------*/ + +/* + * Control register + */ + +#define USBCTL_WRITABLE_MASK 0x1f0f +// bits 15-13 reserved, r/o +#define USBCTL_ENABLE_LANG (1 << 12) +#define USBCTL_ENABLE_MFGR (1 << 11) +#define USBCTL_ENABLE_PROD (1 << 10) +#define USBCTL_ENABLE_SERIAL (1 << 9) +#define USBCTL_ENABLE_DEFAULTS (1 << 8) +// bits 7-4 reserved, r/o +#define USBCTL_FLUSH_OTHER (1 << 3) +#define USBCTL_FLUSH_THIS (1 << 2) +#define USBCTL_DISCONN_OTHER (1 << 1) +#define USBCTL_DISCONN_THIS (1 << 0) + +static inline void nc_dump_usbctl(struct usbnet *dev, u16 usbctl) +{ + if (!netif_msg_link(dev)) + return; + devdbg(dev, "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s;" + " this%s%s;" + " other%s%s; r/o 0x%x", + dev->udev->bus->bus_name, dev->udev->devpath, + usbctl, + (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "", + (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "", + (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "", + (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "", + (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "", + + (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "", + (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "", + (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "", + (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "", + usbctl & ~USBCTL_WRITABLE_MASK + ); +} + +/*-------------------------------------------------------------------------*/ + +/* + * Status register + */ + +#define STATUS_PORT_A (1 << 15) + +#define STATUS_CONN_OTHER (1 << 14) +#define STATUS_SUSPEND_OTHER (1 << 13) +#define STATUS_MAILBOX_OTHER (1 << 12) +#define STATUS_PACKETS_OTHER(n) (((n) >> 8) && 0x03) + +#define STATUS_CONN_THIS (1 << 6) +#define STATUS_SUSPEND_THIS (1 << 5) +#define STATUS_MAILBOX_THIS (1 << 4) +#define STATUS_PACKETS_THIS(n) (((n) >> 0) && 0x03) + +#define STATUS_UNSPEC_MASK 0x0c8c +#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK)) + + +static inline void nc_dump_status(struct usbnet *dev, u16 status) +{ + if (!netif_msg_link(dev)) + return; + devdbg(dev, "net1080 %s-%s status 0x%x:" + " this (%c) PKT=%d%s%s%s;" + " other PKT=%d%s%s%s; unspec 0x%x", + dev->udev->bus->bus_name, dev->udev->devpath, + status, + + // XXX the packet counts don't seem right + // (1 at reset, not 0); maybe UNSPEC too + + (status & STATUS_PORT_A) ? 'A' : 'B', + STATUS_PACKETS_THIS(status), + (status & STATUS_CONN_THIS) ? " CON" : "", + (status & STATUS_SUSPEND_THIS) ? " SUS" : "", + (status & STATUS_MAILBOX_THIS) ? " MBOX" : "", + + STATUS_PACKETS_OTHER(status), + (status & STATUS_CONN_OTHER) ? " CON" : "", + (status & STATUS_SUSPEND_OTHER) ? " SUS" : "", + (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "", + + status & STATUS_UNSPEC_MASK + ); +} + +/*-------------------------------------------------------------------------*/ + +/* + * TTL register + */ + +#define TTL_THIS(ttl) (0x00ff & ttl) +#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8)) +#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this)))) + +static inline void nc_dump_ttl(struct usbnet *dev, u16 ttl) +{ + if (netif_msg_link(dev)) + devdbg(dev, "net1080 %s-%s ttl 0x%x this = %d, other = %d", + dev->udev->bus->bus_name, dev->udev->devpath, + ttl, TTL_THIS(ttl), TTL_OTHER(ttl)); +} + +/*-------------------------------------------------------------------------*/ + +static int net1080_reset(struct usbnet *dev) +{ + u16 usbctl, status, ttl; + u16 *vp = kmalloc(sizeof (u16), GFP_KERNEL); + int retval; + + if (!vp) + return -ENOMEM; + + // nc_dump_registers(dev); + + if ((retval = nc_register_read(dev, REG_STATUS, vp)) < 0) { + dbg("can't read %s-%s status: %d", + dev->udev->bus->bus_name, dev->udev->devpath, retval); + goto done; + } + status = *vp; + nc_dump_status(dev, status); + + if ((retval = nc_register_read(dev, REG_USBCTL, vp)) < 0) { + dbg("can't read USBCTL, %d", retval); + goto done; + } + usbctl = *vp; + nc_dump_usbctl(dev, usbctl); + + nc_register_write(dev, REG_USBCTL, + USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER); + + if ((retval = nc_register_read(dev, REG_TTL, vp)) < 0) { + dbg("can't read TTL, %d", retval); + goto done; + } + ttl = *vp; + // nc_dump_ttl(dev, ttl); + + nc_register_write(dev, REG_TTL, + MK_TTL(NC_READ_TTL_MS, TTL_OTHER(ttl)) ); + dbg("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS); + + if (netif_msg_link(dev)) + devinfo(dev, "port %c, peer %sconnected", + (status & STATUS_PORT_A) ? 'A' : 'B', + (status & STATUS_CONN_OTHER) ? "" : "dis" + ); + retval = 0; + +done: + kfree(vp); + return retval; +} + +static int net1080_check_connect(struct usbnet *dev) +{ + int retval; + u16 status; + u16 *vp = kmalloc(sizeof (u16), GFP_KERNEL); + + if (!vp) + return -ENOMEM; + retval = nc_register_read(dev, REG_STATUS, vp); + status = *vp; + kfree(vp); + if (retval != 0) { + dbg("%s net1080_check_conn read - %d", dev->net->name, retval); + return retval; + } + if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER) + return -ENOLINK; + return 0; +} + +static void nc_flush_complete(struct urb *urb, struct pt_regs *regs) +{ + kfree(urb->context); + usb_free_urb(urb); +} + +static void nc_ensure_sync(struct usbnet *dev) +{ + dev->frame_errors++; + if (dev->frame_errors > 5) { + struct urb *urb; + struct usb_ctrlrequest *req; + int status; + + /* Send a flush */ + urb = usb_alloc_urb(0, SLAB_ATOMIC); + if (!urb) + return; + + req = kmalloc(sizeof *req, GFP_ATOMIC); + if (!req) { + usb_free_urb(urb); + return; + } + + req->bRequestType = USB_DIR_OUT + | USB_TYPE_VENDOR + | USB_RECIP_DEVICE; + req->bRequest = REQUEST_REGISTER; + req->wValue = cpu_to_le16(USBCTL_FLUSH_THIS + | USBCTL_FLUSH_OTHER); + req->wIndex = cpu_to_le16(REG_USBCTL); + req->wLength = cpu_to_le16(0); + + /* queue an async control request, we don't need + * to do anything when it finishes except clean up. + */ + usb_fill_control_urb(urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), + (unsigned char *) req, + NULL, 0, + nc_flush_complete, req); + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) { + kfree(req); + usb_free_urb(urb); + return; + } + + if (netif_msg_rx_err(dev)) + devdbg(dev, "flush net1080; too many framing errors"); + dev->frame_errors = 0; + } +} + +static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + struct nc_header *header; + struct nc_trailer *trailer; + u16 hdr_len, packet_len; + + if (!(skb->len & 0x01)) { +#ifdef DEBUG + struct net_device *net = dev->net; + dbg("rx framesize %d range %d..%d mtu %d", skb->len, + net->hard_header_len, dev->hard_mtu, net->mtu); +#endif + dev->stats.rx_frame_errors++; + nc_ensure_sync(dev); + return 0; + } + + header = (struct nc_header *) skb->data; + hdr_len = le16_to_cpup(&header->hdr_len); + packet_len = le16_to_cpup(&header->packet_len); + if (FRAMED_SIZE(packet_len) > NC_MAX_PACKET) { + dev->stats.rx_frame_errors++; + dbg("packet too big, %d", packet_len); + nc_ensure_sync(dev); + return 0; + } else if (hdr_len < MIN_HEADER) { + dev->stats.rx_frame_errors++; + dbg("header too short, %d", hdr_len); + nc_ensure_sync(dev); + return 0; + } else if (hdr_len > MIN_HEADER) { + // out of band data for us? + dbg("header OOB, %d bytes", hdr_len - MIN_HEADER); + nc_ensure_sync(dev); + // switch (vendor/product ids) { ... } + } + skb_pull(skb, hdr_len); + + trailer = (struct nc_trailer *) + (skb->data + skb->len - sizeof *trailer); + skb_trim(skb, skb->len - sizeof *trailer); + + if ((packet_len & 0x01) == 0) { + if (skb->data [packet_len] != PAD_BYTE) { + dev->stats.rx_frame_errors++; + dbg("bad pad"); + return 0; + } + skb_trim(skb, skb->len - 1); + } + if (skb->len != packet_len) { + dev->stats.rx_frame_errors++; + dbg("bad packet len %d (expected %d)", + skb->len, packet_len); + nc_ensure_sync(dev); + return 0; + } + if (header->packet_id != get_unaligned(&trailer->packet_id)) { + dev->stats.rx_fifo_errors++; + dbg("(2+ dropped) rx packet_id mismatch 0x%x 0x%x", + le16_to_cpu(header->packet_id), + le16_to_cpu(trailer->packet_id)); + return 0; + } +#if 0 + devdbg(dev, "frame <rx h %d p %d id %d", header->hdr_len, + header->packet_len, header->packet_id); +#endif + dev->frame_errors = 0; + return 1; +} + +static struct sk_buff * +net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, unsigned flags) +{ + int padlen; + struct sk_buff *skb2; + struct nc_header *header = NULL; + struct nc_trailer *trailer = NULL; + int len = skb->len; + + padlen = ((len + sizeof (struct nc_header) + + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1; + if (!skb_cloned(skb)) { + int headroom = skb_headroom(skb); + int tailroom = skb_tailroom(skb); + + if ((padlen + sizeof (struct nc_trailer)) <= tailroom + && sizeof (struct nc_header) <= headroom) + /* There's enough head and tail room */ + goto encapsulate; + + if ((sizeof (struct nc_header) + padlen + + sizeof (struct nc_trailer)) < + (headroom + tailroom)) { + /* There's enough total room, so just readjust */ + skb->data = memmove(skb->head + + sizeof (struct nc_header), + skb->data, skb->len); + skb->tail = skb->data + len; + goto encapsulate; + } + } + + /* Create a new skb to use with the correct size */ + skb2 = skb_copy_expand(skb, + sizeof (struct nc_header), + sizeof (struct nc_trailer) + padlen, + flags); + dev_kfree_skb_any(skb); + if (!skb2) + return skb2; + skb = skb2; + +encapsulate: + /* header first */ + header = (struct nc_header *) skb_push(skb, sizeof *header); + header->hdr_len = cpu_to_le16(sizeof (*header)); + header->packet_len = cpu_to_le16(len); + header->packet_id = cpu_to_le16((u16)dev->xid++); + + /* maybe pad; then trailer */ + if (!((skb->len + sizeof *trailer) & 0x01)) + *skb_put(skb, 1) = PAD_BYTE; + trailer = (struct nc_trailer *) skb_put(skb, sizeof *trailer); + put_unaligned(header->packet_id, &trailer->packet_id); +#if 0 + devdbg(dev, "frame >tx h %d p %d id %d", + header->hdr_len, header->packet_len, + header->packet_id); +#endif + return skb; +} + +static int net1080_bind(struct usbnet *dev, struct usb_interface *intf) +{ + unsigned extra = sizeof (struct nc_header) + + 1 + + sizeof (struct nc_trailer); + + dev->net->hard_header_len += extra; + dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu; + dev->hard_mtu = NC_MAX_PACKET; + return usbnet_get_endpoints (dev, intf); +} + +static const struct driver_info net1080_info = { + .description = "NetChip TurboCONNECT", + .flags = FLAG_FRAMING_NC, + .bind = net1080_bind, + .reset = net1080_reset, + .check_connect = net1080_check_connect, + .rx_fixup = net1080_rx_fixup, + .tx_fixup = net1080_tx_fixup, +}; + +static const struct usb_device_id products [] = { +{ + USB_DEVICE(0x0525, 0x1080), // NetChip ref design + .driver_info = (unsigned long) &net1080_info, +}, { + USB_DEVICE(0x06D0, 0x0622), // Laplink Gold + .driver_info = (unsigned long) &net1080_info, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver net1080_driver = { + .owner = THIS_MODULE, + .name = "net1080", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init net1080_init(void) +{ + return usb_register(&net1080_driver); +} +module_init(net1080_init); + +static void __exit net1080_exit(void) +{ + usb_deregister(&net1080_driver); +} +module_exit(net1080_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("NetChip 1080 based USB Host-to-Host Links"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/pegasus.c b/drivers/usb/net/pegasus.c index fcd6d3ccef4..7484d34780f 100644 --- a/drivers/usb/net/pegasus.c +++ b/drivers/usb/net/pegasus.c @@ -825,7 +825,6 @@ static void pegasus_tx_timeout(struct net_device *net) pegasus_t *pegasus = netdev_priv(net); if (netif_msg_timer(pegasus)) printk(KERN_WARNING "%s: tx timeout\n", net->name); - pegasus->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(pegasus->tx_urb); pegasus->stats.tx_errors++; } diff --git a/drivers/usb/net/plusb.c b/drivers/usb/net/plusb.c new file mode 100644 index 00000000000..74c2b3581c7 --- /dev/null +++ b/drivers/usb/net/plusb.c @@ -0,0 +1,156 @@ +/* + * PL-2301/2302 USB host-to-host link cables + * Copyright (C) 2000-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> + +#include "usbnet.h" + + +/* + * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com + * + * The protocol and handshaking used here should be bug-compatible + * with the Linux 2.2 "plusb" driver, by Deti Fliegl. + * + * HEADS UP: this handshaking isn't all that robust. This driver + * gets confused easily if you unplug one end of the cable then + * try to connect it again; you'll need to restart both ends. The + * "naplink" software (used by some PlayStation/2 deveopers) does + * the handshaking much better! Also, sometimes this hardware + * seems to get wedged under load. Prolific docs are weak, and + * don't identify differences between PL2301 and PL2302, much less + * anything to explain the different PL2302 versions observed. + */ + +/* + * Bits 0-4 can be used for software handshaking; they're set from + * one end, cleared from the other, "read" with the interrupt byte. + */ +#define PL_S_EN (1<<7) /* (feature only) suspend enable */ +/* reserved bit -- rx ready (6) ? */ +#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */ +#define PL_RESET_OUT (1<<4) /* reset output pipe */ +#define PL_RESET_IN (1<<3) /* reset input pipe */ +#define PL_TX_C (1<<2) /* transmission complete */ +#define PL_TX_REQ (1<<1) /* transmission received */ +#define PL_PEER_E (1<<0) /* peer exists */ + +static inline int +pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) +{ + return usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + req, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + val, index, + NULL, 0, + USB_CTRL_GET_TIMEOUT); +} + +static inline int +pl_clear_QuickLink_features(struct usbnet *dev, int val) +{ + return pl_vendor_req(dev, 1, (u8) val, 0); +} + +static inline int +pl_set_QuickLink_features(struct usbnet *dev, int val) +{ + return pl_vendor_req(dev, 3, (u8) val, 0); +} + +static int pl_reset(struct usbnet *dev) +{ + /* some units seem to need this reset, others reject it utterly. + * FIXME be more like "naplink" or windows drivers. + */ + (void) pl_set_QuickLink_features(dev, + PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E); + return 0; +} + +static const struct driver_info prolific_info = { + .description = "Prolific PL-2301/PL-2302", + .flags = FLAG_NO_SETINT, + /* some PL-2302 versions seem to fail usb_set_interface() */ + .reset = pl_reset, +}; + + +/*-------------------------------------------------------------------------*/ + +/* + * Proilific's name won't normally be on the cables, and + * may not be on the device. + */ + +static const struct usb_device_id products [] = { + +{ + USB_DEVICE(0x067b, 0x0000), // PL-2301 + .driver_info = (unsigned long) &prolific_info, +}, { + USB_DEVICE(0x067b, 0x0001), // PL-2302 + .driver_info = (unsigned long) &prolific_info, +}, + + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver plusb_driver = { + .owner = THIS_MODULE, + .name = "plusb", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init plusb_init(void) +{ + return usb_register(&plusb_driver); +} +module_init(plusb_init); + +static void __exit plusb_exit(void) +{ + usb_deregister(&plusb_driver); +} +module_exit(plusb_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("Prolific PL-2301/2302 USB Host to Host Link Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/rndis_host.c b/drivers/usb/net/rndis_host.c new file mode 100644 index 00000000000..2ed2e5fb777 --- /dev/null +++ b/drivers/usb/net/rndis_host.c @@ -0,0 +1,615 @@ +/* + * Host Side support for RNDIS Networking Links + * Copyright (C) 2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/usb.h> +#include <linux/usb_cdc.h> + +#include "usbnet.h" + + +/* + * RNDIS is NDIS remoted over USB. It's a MSFT variant of CDC ACM ... of + * course ACM was intended for modems, not Ethernet links! USB's standard + * for Ethernet links is "CDC Ethernet", which is significantly simpler. + */ + +/* + * CONTROL uses CDC "encapsulated commands" with funky notifications. + * - control-out: SEND_ENCAPSULATED + * - interrupt-in: RESPONSE_AVAILABLE + * - control-in: GET_ENCAPSULATED + * + * We'll try to ignore the RESPONSE_AVAILABLE notifications. + */ +struct rndis_msg_hdr { + __le32 msg_type; /* RNDIS_MSG_* */ + __le32 msg_len; + // followed by data that varies between messages + __le32 request_id; + __le32 status; + // ... and more +} __attribute__ ((packed)); + +/* RNDIS defines this (absurdly huge) control timeout */ +#define RNDIS_CONTROL_TIMEOUT_MS (10 * 1000) + + +#define ccpu2 __constant_cpu_to_le32 + +#define RNDIS_MSG_COMPLETION ccpu2(0x80000000) + +/* codes for "msg_type" field of rndis messages; + * only the data channel uses packet messages (maybe batched); + * everything else goes on the control channel. + */ +#define RNDIS_MSG_PACKET ccpu2(0x00000001) /* 1-N packets */ +#define RNDIS_MSG_INIT ccpu2(0x00000002) +#define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION) +#define RNDIS_MSG_HALT ccpu2(0x00000003) +#define RNDIS_MSG_QUERY ccpu2(0x00000004) +#define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION) +#define RNDIS_MSG_SET ccpu2(0x00000005) +#define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION) +#define RNDIS_MSG_RESET ccpu2(0x00000006) +#define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION) +#define RNDIS_MSG_INDICATE ccpu2(0x00000007) +#define RNDIS_MSG_KEEPALIVE ccpu2(0x00000008) +#define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION) + +/* codes for "status" field of completion messages */ +#define RNDIS_STATUS_SUCCESS ccpu2(0x00000000) +#define RNDIS_STATUS_FAILURE ccpu2(0xc0000001) +#define RNDIS_STATUS_INVALID_DATA ccpu2(0xc0010015) +#define RNDIS_STATUS_NOT_SUPPORTED ccpu2(0xc00000bb) +#define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b) +#define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c) + + +struct rndis_data_hdr { + __le32 msg_type; /* RNDIS_MSG_PACKET */ + __le32 msg_len; // rndis_data_hdr + data_len + pad + __le32 data_offset; // 36 -- right after header + __le32 data_len; // ... real packet size + + __le32 oob_data_offset; // zero + __le32 oob_data_len; // zero + __le32 num_oob; // zero + __le32 packet_data_offset; // zero + + __le32 packet_data_len; // zero + __le32 vc_handle; // zero + __le32 reserved; // zero +} __attribute__ ((packed)); + +struct rndis_init { /* OUT */ + // header and: + __le32 msg_type; /* RNDIS_MSG_INIT */ + __le32 msg_len; // 24 + __le32 request_id; + __le32 major_version; // of rndis (1.0) + __le32 minor_version; + __le32 max_transfer_size; +} __attribute__ ((packed)); + +struct rndis_init_c { /* IN */ + // header and: + __le32 msg_type; /* RNDIS_MSG_INIT_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; + __le32 major_version; // of rndis (1.0) + __le32 minor_version; + __le32 device_flags; + __le32 medium; // zero == 802.3 + __le32 max_packets_per_message; + __le32 max_transfer_size; + __le32 packet_alignment; // max 7; (1<<n) bytes + __le32 af_list_offset; // zero + __le32 af_list_size; // zero +} __attribute__ ((packed)); + +struct rndis_halt { /* OUT (no reply) */ + // header and: + __le32 msg_type; /* RNDIS_MSG_HALT */ + __le32 msg_len; + __le32 request_id; +} __attribute__ ((packed)); + +struct rndis_query { /* OUT */ + // header and: + __le32 msg_type; /* RNDIS_MSG_QUERY */ + __le32 msg_len; + __le32 request_id; + __le32 oid; + __le32 len; + __le32 offset; +/*?*/ __le32 handle; // zero +} __attribute__ ((packed)); + +struct rndis_query_c { /* IN */ + // header and: + __le32 msg_type; /* RNDIS_MSG_QUERY_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; + __le32 len; + __le32 offset; +} __attribute__ ((packed)); + +struct rndis_set { /* OUT */ + // header and: + __le32 msg_type; /* RNDIS_MSG_SET */ + __le32 msg_len; + __le32 request_id; + __le32 oid; + __le32 len; + __le32 offset; +/*?*/ __le32 handle; // zero +} __attribute__ ((packed)); + +struct rndis_set_c { /* IN */ + // header and: + __le32 msg_type; /* RNDIS_MSG_SET_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; +} __attribute__ ((packed)); + +struct rndis_reset { /* IN */ + // header and: + __le32 msg_type; /* RNDIS_MSG_RESET */ + __le32 msg_len; + __le32 reserved; +} __attribute__ ((packed)); + +struct rndis_reset_c { /* OUT */ + // header and: + __le32 msg_type; /* RNDIS_MSG_RESET_C */ + __le32 msg_len; + __le32 status; + __le32 addressing_lost; +} __attribute__ ((packed)); + +struct rndis_indicate { /* IN (unrequested) */ + // header and: + __le32 msg_type; /* RNDIS_MSG_INDICATE */ + __le32 msg_len; + __le32 status; + __le32 length; + __le32 offset; +/**/ __le32 diag_status; + __le32 error_offset; +/**/ __le32 message; +} __attribute__ ((packed)); + +struct rndis_keepalive { /* OUT (optionally IN) */ + // header and: + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */ + __le32 msg_len; + __le32 request_id; +} __attribute__ ((packed)); + +struct rndis_keepalive_c { /* IN (optionally OUT) */ + // header and: + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; +} __attribute__ ((packed)); + +/* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and + * there are gobs more that may optionally be supported. We'll avoid as much + * of that mess as possible. + */ +#define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101) +#define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e) + +/* + * RNDIS notifications from device: command completion; "reverse" + * keepalives; etc + */ +static void rndis_status(struct usbnet *dev, struct urb *urb) +{ + devdbg(dev, "rndis status urb, len %d stat %d", + urb->actual_length, urb->status); + // FIXME for keepalives, respond immediately (asynchronously) + // if not an RNDIS status, do like cdc_status(dev,urb) does +} + +/* + * RPC done RNDIS-style. Caller guarantees: + * - message is properly byteswapped + * - there's no other request pending + * - buf can hold up to 1KB response (required by RNDIS spec) + * On return, the first few entries are already byteswapped. + * + * Call context is likely probe(), before interface name is known, + * which is why we won't try to use it in the diagnostics. + */ +static int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf) +{ + struct cdc_state *info = (void *) &dev->data; + int retval; + unsigned count; + __le32 rsp; + u32 xid = 0, msg_len, request_id; + + /* REVISIT when this gets called from contexts other than probe() or + * disconnect(): either serialize, or dispatch responses on xid + */ + + /* Issue the request; don't bother byteswapping our xid */ + if (likely(buf->msg_type != RNDIS_MSG_HALT + && buf->msg_type != RNDIS_MSG_RESET)) { + xid = dev->xid++; + if (!xid) + xid = dev->xid++; + buf->request_id = (__force __le32) xid; + } + retval = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + USB_CDC_SEND_ENCAPSULATED_COMMAND, + USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, info->u->bMasterInterface0, + buf, le32_to_cpu(buf->msg_len), + RNDIS_CONTROL_TIMEOUT_MS); + if (unlikely(retval < 0 || xid == 0)) + return retval; + + // FIXME Seems like some devices discard responses when + // we time out and cancel our "get response" requests... + // so, this is fragile. Probably need to poll for status. + + /* ignore status endpoint, just poll the control channel; + * the request probably completed immediately + */ + rsp = buf->msg_type | RNDIS_MSG_COMPLETION; + for (count = 0; count < 10; count++) { + memset(buf, 0, 1024); + retval = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + USB_CDC_GET_ENCAPSULATED_RESPONSE, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, info->u->bMasterInterface0, + buf, 1024, + RNDIS_CONTROL_TIMEOUT_MS); + if (likely(retval >= 8)) { + msg_len = le32_to_cpu(buf->msg_len); + request_id = (__force u32) buf->request_id; + if (likely(buf->msg_type == rsp)) { + if (likely(request_id == xid)) { + if (unlikely(rsp == RNDIS_MSG_RESET_C)) + return 0; + if (likely(RNDIS_STATUS_SUCCESS + == buf->status)) + return 0; + dev_dbg(&info->control->dev, + "rndis reply status %08x\n", + le32_to_cpu(buf->status)); + return -EL3RST; + } + dev_dbg(&info->control->dev, + "rndis reply id %d expected %d\n", + request_id, xid); + /* then likely retry */ + } else switch (buf->msg_type) { + case RNDIS_MSG_INDICATE: { /* fault */ + // struct rndis_indicate *msg = (void *)buf; + dev_info(&info->control->dev, + "rndis fault indication\n"); + } + break; + case RNDIS_MSG_KEEPALIVE: { /* ping */ + struct rndis_keepalive_c *msg = (void *)buf; + + msg->msg_type = RNDIS_MSG_KEEPALIVE_C; + msg->msg_len = ccpu2(sizeof *msg); + msg->status = RNDIS_STATUS_SUCCESS; + retval = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + USB_CDC_SEND_ENCAPSULATED_COMMAND, + USB_TYPE_CLASS | USB_RECIP_INTERFACE, + 0, info->u->bMasterInterface0, + msg, sizeof *msg, + RNDIS_CONTROL_TIMEOUT_MS); + if (unlikely(retval < 0)) + dev_dbg(&info->control->dev, + "rndis keepalive err %d\n", + retval); + } + break; + default: + dev_dbg(&info->control->dev, + "unexpected rndis msg %08x len %d\n", + le32_to_cpu(buf->msg_type), msg_len); + } + } else { + /* device probably issued a protocol stall; ignore */ + dev_dbg(&info->control->dev, + "rndis response error, code %d\n", retval); + } + msleep(2); + } + dev_dbg(&info->control->dev, "rndis response timeout\n"); + return -ETIMEDOUT; +} + +static int rndis_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int retval; + struct net_device *net = dev->net; + union { + void *buf; + struct rndis_msg_hdr *header; + struct rndis_init *init; + struct rndis_init_c *init_c; + struct rndis_query *get; + struct rndis_query_c *get_c; + struct rndis_set *set; + struct rndis_set_c *set_c; + } u; + u32 tmp; + + /* we can't rely on i/o from stack working, or stack allocation */ + u.buf = kmalloc(1024, GFP_KERNEL); + if (!u.buf) + return -ENOMEM; + retval = usbnet_generic_cdc_bind(dev, intf); + if (retval < 0) + goto done; + + net->hard_header_len += sizeof (struct rndis_data_hdr); + + /* initialize; max transfer is 16KB at full speed */ + u.init->msg_type = RNDIS_MSG_INIT; + u.init->msg_len = ccpu2(sizeof *u.init); + u.init->major_version = ccpu2(1); + u.init->minor_version = ccpu2(0); + u.init->max_transfer_size = ccpu2(net->mtu + net->hard_header_len); + + retval = rndis_command(dev, u.header); + if (unlikely(retval < 0)) { + /* it might not even be an RNDIS device!! */ + dev_err(&intf->dev, "RNDIS init failed, %d\n", retval); +fail: + usb_driver_release_interface(driver_of(intf), + ((struct cdc_state *)&(dev->data))->data); + goto done; + } + dev->hard_mtu = le32_to_cpu(u.init_c->max_transfer_size); + /* REVISIT: peripheral "alignment" request is ignored ... */ + dev_dbg(&intf->dev, "hard mtu %u, align %d\n", dev->hard_mtu, + 1 << le32_to_cpu(u.init_c->packet_alignment)); + + /* get designated host ethernet address */ + memset(u.get, 0, sizeof *u.get); + u.get->msg_type = RNDIS_MSG_QUERY; + u.get->msg_len = ccpu2(sizeof *u.get); + u.get->oid = OID_802_3_PERMANENT_ADDRESS; + + retval = rndis_command(dev, u.header); + if (unlikely(retval < 0)) { + dev_err(&intf->dev, "rndis get ethaddr, %d\n", retval); + goto fail; + } + tmp = le32_to_cpu(u.get_c->offset); + if (unlikely((tmp + 8) > (1024 - ETH_ALEN) + || u.get_c->len != ccpu2(ETH_ALEN))) { + dev_err(&intf->dev, "rndis ethaddr off %d len %d ?\n", + tmp, le32_to_cpu(u.get_c->len)); + retval = -EDOM; + goto fail; + } + memcpy(net->dev_addr, tmp + (char *)&u.get_c->request_id, ETH_ALEN); + + /* set a nonzero filter to enable data transfers */ + memset(u.set, 0, sizeof *u.set); + u.set->msg_type = RNDIS_MSG_SET; + u.set->msg_len = ccpu2(4 + sizeof *u.set); + u.set->oid = OID_GEN_CURRENT_PACKET_FILTER; + u.set->len = ccpu2(4); + u.set->offset = ccpu2((sizeof *u.set) - 8); + *(__le32 *)(u.buf + sizeof *u.set) = ccpu2(DEFAULT_FILTER); + + retval = rndis_command(dev, u.header); + if (unlikely(retval < 0)) { + dev_err(&intf->dev, "rndis set packet filter, %d\n", retval); + goto fail; + } + + retval = 0; +done: + kfree(u.buf); + return retval; +} + +static void rndis_unbind(struct usbnet *dev, struct usb_interface *intf) +{ + struct rndis_halt *halt; + + /* try to clear any rndis state/activity (no i/o from stack!) */ + halt = kcalloc(1, sizeof *halt, SLAB_KERNEL); + if (halt) { + halt->msg_type = RNDIS_MSG_HALT; + halt->msg_len = ccpu2(sizeof *halt); + (void) rndis_command(dev, (void *)halt); + kfree(halt); + } + + return usbnet_cdc_unbind(dev, intf); +} + +/* + * DATA -- host must not write zlps + */ +static int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + /* peripheral may have batched packets to us... */ + while (likely(skb->len)) { + struct rndis_data_hdr *hdr = (void *)skb->data; + struct sk_buff *skb2; + u32 msg_len, data_offset, data_len; + + msg_len = le32_to_cpu(hdr->msg_len); + data_offset = le32_to_cpu(hdr->data_offset); + data_len = le32_to_cpu(hdr->data_len); + + /* don't choke if we see oob, per-packet data, etc */ + if (unlikely(hdr->msg_type != RNDIS_MSG_PACKET + || skb->len < msg_len + || (data_offset + data_len + 8) > msg_len)) { + dev->stats.rx_frame_errors++; + devdbg(dev, "bad rndis message %d/%d/%d/%d, len %d", + le32_to_cpu(hdr->msg_type), + msg_len, data_offset, data_len, skb->len); + return 0; + } + skb_pull(skb, 8 + data_offset); + + /* at most one packet left? */ + if (likely((data_len - skb->len) <= sizeof *hdr)) { + skb_trim(skb, data_len); + break; + } + + /* try to return all the packets in the batch */ + skb2 = skb_clone(skb, GFP_ATOMIC); + if (unlikely(!skb2)) + break; + skb_pull(skb, msg_len - sizeof *hdr); + skb_trim(skb2, data_len); + usbnet_skb_return(dev, skb2); + } + + /* caller will usbnet_skb_return the remaining packet */ + return 1; +} + +static struct sk_buff * +rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, unsigned flags) +{ + struct rndis_data_hdr *hdr; + struct sk_buff *skb2; + unsigned len = skb->len; + + if (likely(!skb_cloned(skb))) { + int room = skb_headroom(skb); + + /* enough head room as-is? */ + if (unlikely((sizeof *hdr) <= room)) + goto fill; + + /* enough room, but needs to be readjusted? */ + room += skb_tailroom(skb); + if (likely((sizeof *hdr) <= room)) { + skb->data = memmove(skb->head + sizeof *hdr, + skb->data, len); + skb->tail = skb->data + len; + goto fill; + } + } + + /* create a new skb, with the correct size (and tailpad) */ + skb2 = skb_copy_expand(skb, sizeof *hdr, 1, flags); + dev_kfree_skb_any(skb); + if (unlikely(!skb2)) + return skb2; + skb = skb2; + + /* fill out the RNDIS header. we won't bother trying to batch + * packets; Linux minimizes wasted bandwidth through tx queues. + */ +fill: + hdr = (void *) __skb_push(skb, sizeof *hdr); + memset(hdr, 0, sizeof *hdr); + hdr->msg_type = RNDIS_MSG_PACKET; + hdr->msg_len = cpu_to_le32(skb->len); + hdr->data_offset = ccpu2(sizeof(*hdr) - 8); + hdr->data_len = cpu_to_le32(len); + + /* FIXME make the last packet always be short ... */ + return skb; +} + + +static const struct driver_info rndis_info = { + .description = "RNDIS device", + .flags = FLAG_ETHER | FLAG_FRAMING_RN, + .bind = rndis_bind, + .unbind = rndis_unbind, + .status = rndis_status, + .rx_fixup = rndis_rx_fixup, + .tx_fixup = rndis_tx_fixup, +}; + +#undef ccpu2 + + +/*-------------------------------------------------------------------------*/ + +static const struct usb_device_id products [] = { +{ + /* RNDIS is MSFT's un-official variant of CDC ACM */ + USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff), + .driver_info = (unsigned long) &rndis_info, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver rndis_driver = { + .owner = THIS_MODULE, + .name = "rndis_host", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init rndis_init(void) +{ + return usb_register(&rndis_driver); +} +module_init(rndis_init); + +static void __exit rndis_exit(void) +{ + usb_deregister(&rndis_driver); +} +module_exit(rndis_exit); + +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("USB Host side RNDIS driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c index 59ab40ebb39..c3d4e3589e3 100644 --- a/drivers/usb/net/rtl8150.c +++ b/drivers/usb/net/rtl8150.c @@ -653,7 +653,6 @@ static void rtl8150_tx_timeout(struct net_device *netdev) { rtl8150_t *dev = netdev_priv(netdev); warn("%s: Tx timeout.", netdev->name); - dev->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(dev->tx_urb); dev->stats.tx_errors++; } diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c index a2f67245f6d..6c460918d54 100644 --- a/drivers/usb/net/usbnet.c +++ b/drivers/usb/net/usbnet.c @@ -1,10 +1,7 @@ /* - * USB Networking Links - * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net> - * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> + * USB Network driver infrastructure + * Copyright (C) 2000-2005 by David Brownell * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> - * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> - * Copyright (c) 2002-2003 TiVo Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -23,95 +20,15 @@ /* * This is a generic "USB networking" framework that works with several - * kinds of full and high speed networking devices: - * - * + USB host-to-host "network cables", used for IP-over-USB links. - * These are often used for Laplink style connectivity products. - * - AnchorChip 2720 - * - Belkin, eTEK (interops with Win32 drivers) - * - GeneSys GL620USB-A - * - NetChip 1080 (interoperates with NetChip Win32 drivers) - * - Prolific PL-2301/2302 (replaces "plusb" driver) - * - KC Technology KC2190 - * - * + Smart USB devices can support such links directly, using Internet - * standard protocols instead of proprietary host-to-device links. - * - Linux PDAs like iPaq, Yopy, and Zaurus - * - The BLOB boot loader (for diskless booting) - * - Linux "gadgets", perhaps using PXA-2xx or Net2280 controllers - * - Devices using EPSON's sample USB firmware - * - CDC-Ethernet class devices, such as many cable modems - * - * + Adapters to networks such as Ethernet. - * - AX8817X based USB 2.0 products - * - * Links to these devices can be bridged using Linux Ethernet bridging. - * With minor exceptions, these all use similar USB framing for network - * traffic, but need different protocols for control traffic. - * - * USB devices can implement their side of this protocol at the cost - * of two bulk endpoints; it's not restricted to "cable" applications. - * See the SA1110, Zaurus, or EPSON device/client support in this driver; - * slave/target drivers such as "usb-eth" (on most SA-1100 PDAs) or - * "g_ether" (in the Linux "gadget" framework) implement that behavior - * within devices. - * - * - * CHANGELOG: - * - * 13-sep-2000 experimental, new - * 10-oct-2000 usb_device_id table created. - * 28-oct-2000 misc fixes; mostly, discard more TTL-mangled rx packets. - * 01-nov-2000 usb_device_id table and probing api update by - * Adam J. Richter <adam@yggdrasil.com>. - * 18-dec-2000 (db) tx watchdog, "net1080" renaming to "usbnet", device_info - * and prolific support, isolate net1080-specific bits, cleanup. - * fix unlink_urbs oops in D3 PM resume code path. - * - * 02-feb-2001 (db) fix tx skb sharing, packet length, match_flags, ... - * 08-feb-2001 stubbed in "linuxdev", maybe the SA-1100 folk can use it; - * AnchorChips 2720 support (from spec) for testing; - * fix bit-ordering problem with ethernet multicast addr - * 19-feb-2001 Support for clearing halt conditions. SA1100 UDC support - * updates. Oleg Drokin (green@iXcelerator.com) - * 25-mar-2001 More SA-1100 updates, including workaround for ip problem - * expecting cleared skb->cb and framing change to match latest - * handhelds.org version (Oleg). Enable device IDs from the - * Win32 Belkin driver; other cleanups (db). - * 16-jul-2001 Bugfixes for uhci oops-on-unplug, Belkin support, various - * cleanups for problems not yet seen in the field. (db) - * 17-oct-2001 Handle "Advance USBNET" product, like Belkin/eTEK devices, - * from Ioannis Mavroukakis <i.mavroukakis@btinternet.com>; - * rx unlinks somehow weren't async; minor cleanup. - * 03-nov-2001 Merged GeneSys driver; original code from Jiun-Jie Huang - * <huangjj@genesyslogic.com.tw>, updated by Stanislav Brabec - * <utx@penguin.cz>. Made framing options (NetChip/GeneSys) - * tie mostly to (sub)driver info. Workaround some PL-2302 - * chips that seem to reject SET_INTERFACE requests. - * - * 06-apr-2002 Added ethtool support, based on a patch from Brad Hards. - * Level of diagnostics is more configurable; they use device - * location (usb_device->devpath) instead of address (2.5). - * For tx_fixup, memflags can't be NOIO. - * 07-may-2002 Generalize/cleanup keventd support, handling rx stalls (mostly - * for USB 2.0 TTs) and memory shortages (potential) too. (db) - * Use "locally assigned" IEEE802 address space. (Brad Hards) - * 18-oct-2002 Support for Zaurus (Pavel Machek), related cleanup (db). - * 14-dec-2002 Remove Zaurus-private crc32 code (Pavel); 2.5 oops fix, - * cleanups and stubbed PXA-250 support (db), fix for framing - * issues on Z, net1080, and gl620a (Toby Milne) - * - * 31-mar-2003 Use endpoint descriptors: high speed support, simpler sa1100 - * vs pxa25x, and CDC Ethernet. Throttle down log floods on - * disconnect; other cleanups. (db) Flush net1080 fifos - * after several sequential framing errors. (Johannes Erdfelt) - * 22-aug-2003 AX8817X support (Dave Hollis). - * 14-jun-2004 Trivial patch for AX8817X based Buffalo LUA-U2-KTX in Japan - * (Neil Bortnak) - * 03-nov-2004 Trivial patch for KC2190 (KC-190) chip. (Jonathan McDowell) - * - * 01-feb-2005 AX88772 support (Phil Chang & Dave Hollis) - *-------------------------------------------------------------------------*/ + * kinds of full and high speed networking devices: host-to-host cables, + * smart usb peripherals, and actual Ethernet adapters. + * + * These devices usually differ in terms of control protocols (if they + * even have one!) and sometimes they define new framing to wrap or batch + * Ethernet packets. Otherwise, they talk to USB pretty much the same, + * so interface (un)binding, endpoint I/O queues, fault handling, and other + * issues can usefully be addressed by this framework. + */ // #define DEBUG // error path messages, extra info // #define VERBOSE // more; success messages @@ -121,24 +38,18 @@ # define DEBUG #endif #include <linux/module.h> -#include <linux/kmod.h> #include <linux/sched.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> -#include <linux/random.h> #include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/mii.h> -#include <asm/uaccess.h> -#include <asm/unaligned.h> #include <linux/usb.h> -#include <asm/io.h> -#include <asm/scatterlist.h> -#include <linux/mm.h> -#include <linux/dma-mapping.h> -#define DRIVER_VERSION "03-Nov-2004" +#include "usbnet.h" + +#define DRIVER_VERSION "22-Aug-2005" /*-------------------------------------------------------------------------*/ @@ -149,15 +60,14 @@ * One maximum size Ethernet packet takes twenty four of them. * For high speed, each frame comfortably fits almost 36 max size * Ethernet packets (so queues should be bigger). + * + * REVISIT qlens should be members of 'struct usbnet'; the goal is to + * let the USB host controller be busy for 5msec or more before an irq + * is required, under load. Jumbograms change the equation. */ #define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) #define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) -// packets are always ethernet inside -// ... except they can be bigger (limit of 64K with NetChip framing) -#define MIN_PACKET sizeof(struct ethhdr) -#define MAX_PACKET 32768 - // reawaken network queue this soon after stopping; else watchdog barks #define TX_TIMEOUT_JIFFIES (5*HZ) @@ -165,9 +75,6 @@ // us (it polls at HZ/4 usually) before we report too many false errors. #define THROTTLE_JIFFIES (HZ/8) -// for vendor-specific control operations -#define CONTROL_TIMEOUT_MS 500 - // between wakeups #define UNLINK_TIMEOUT_MS 3 @@ -176,109 +83,6 @@ // randomly generated ethernet address static u8 node_id [ETH_ALEN]; -// state we keep for each device we handle -struct usbnet { - // housekeeping - struct usb_device *udev; - struct driver_info *driver_info; - wait_queue_head_t *wait; - - // i/o info: pipes etc - unsigned in, out; - struct usb_host_endpoint *status; - unsigned maxpacket; - struct timer_list delay; - - // protocol/interface state - struct net_device *net; - struct net_device_stats stats; - int msg_enable; - unsigned long data [5]; - - struct mii_if_info mii; - - // various kinds of pending driver work - struct sk_buff_head rxq; - struct sk_buff_head txq; - struct sk_buff_head done; - struct urb *interrupt; - struct tasklet_struct bh; - - struct work_struct kevent; - unsigned long flags; -# define EVENT_TX_HALT 0 -# define EVENT_RX_HALT 1 -# define EVENT_RX_MEMORY 2 -# define EVENT_STS_SPLIT 3 -# define EVENT_LINK_RESET 4 -}; - -// device-specific info used by the driver -struct driver_info { - char *description; - - int flags; -/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */ -#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */ -#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */ -#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */ -#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */ - -#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */ -#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */ - -#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */ - - /* init device ... can sleep, or cause probe() failure */ - int (*bind)(struct usbnet *, struct usb_interface *); - - /* cleanup device ... can sleep, but can't fail */ - void (*unbind)(struct usbnet *, struct usb_interface *); - - /* reset device ... can sleep */ - int (*reset)(struct usbnet *); - - /* see if peer is connected ... can sleep */ - int (*check_connect)(struct usbnet *); - - /* for status polling */ - void (*status)(struct usbnet *, struct urb *); - - /* link reset handling, called from defer_kevent */ - int (*link_reset)(struct usbnet *); - - /* fixup rx packet (strip framing) */ - int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb); - - /* fixup tx packet (add framing) */ - struct sk_buff *(*tx_fixup)(struct usbnet *dev, - struct sk_buff *skb, int flags); - - // FIXME -- also an interrupt mechanism - // useful for at least PL2301/2302 and GL620USB-A - // and CDC use them to report 'is it connected' changes - - /* for new devices, use the descriptor-reading code instead */ - int in; /* rx endpoint */ - int out; /* tx endpoint */ - - unsigned long data; /* Misc driver specific data */ -}; - -// we record the state for each of our queued skbs -enum skb_state { - illegal = 0, - tx_start, tx_done, - rx_start, rx_done, rx_cleanup -}; - -struct skb_data { // skb->cb is one of these - struct urb *urb; - struct usbnet *dev; - enum skb_state state; - size_t length; -}; - static const char driver_name [] = "usbnet"; /* use ethtool to change the level for any given device */ @@ -286,39 +90,10 @@ static int msg_level = -1; module_param (msg_level, int, 0); MODULE_PARM_DESC (msg_level, "Override default message level"); - -#ifdef DEBUG -#define devdbg(usbnet, fmt, arg...) \ - printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg) -#else -#define devdbg(usbnet, fmt, arg...) do {} while(0) -#endif - -#define deverr(usbnet, fmt, arg...) \ - printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg) -#define devwarn(usbnet, fmt, arg...) \ - printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg) - -#define devinfo(usbnet, fmt, arg...) \ - printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \ - /*-------------------------------------------------------------------------*/ -static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *); -static u32 usbnet_get_link (struct net_device *); -static u32 usbnet_get_msglevel (struct net_device *); -static void usbnet_set_msglevel (struct net_device *, u32); -static void defer_kevent (struct usbnet *, int); - -/* mostly for PDA style devices, which are always connected if present */ -static int always_connected (struct usbnet *dev) -{ - return 0; -} - /* handles CDC Ethernet and many other network "bulk data" interfaces */ -static int -get_endpoints (struct usbnet *dev, struct usb_interface *intf) +int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) { int tmp; struct usb_host_interface *alt = NULL; @@ -382,6 +157,7 @@ get_endpoints (struct usbnet *dev, struct usb_interface *intf) dev->status = status; return 0; } +EXPORT_SYMBOL_GPL(usbnet_get_endpoints); static void intr_complete (struct urb *urb, struct pt_regs *regs); @@ -421,7 +197,11 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf) return 0; } -static void skb_return (struct usbnet *dev, struct sk_buff *skb) +/* Passes this packet up the stack, updating its accounting. + * Some link protocols batch packets, so their rx_fixup paths + * can return clones as well as just modify the original skb. + */ +void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb) { int status; @@ -438,2425 +218,7 @@ static void skb_return (struct usbnet *dev, struct sk_buff *skb) if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev)) devdbg (dev, "netif_rx status %d", status); } - - -#ifdef CONFIG_USB_ALI_M5632 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * ALi M5632 driver ... does high speed - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info ali_m5632_info = { - .description = "ALi M5632", -}; - - -#endif - - -#ifdef CONFIG_USB_AN2720 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * AnchorChips 2720 driver ... http://www.cypress.com - * - * This doesn't seem to have a way to detect whether the peer is - * connected, or need any reset handshaking. It's got pretty big - * internal buffers (handles most of a frame's worth of data). - * Chip data sheets don't describe any vendor control messages. - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info an2720_info = { - .description = "AnchorChips/Cypress 2720", - // no reset available! - // no check_connect available! - - .in = 2, .out = 2, // direction distinguishes these -}; - -#endif /* CONFIG_USB_AN2720 */ - - -#ifdef CONFIG_USB_AX8817X -/* ASIX AX8817X based USB 2.0 Ethernet Devices */ - -#define HAVE_HARDWARE -#define NEED_MII - -#include <linux/crc32.h> - -#define AX_CMD_SET_SW_MII 0x06 -#define AX_CMD_READ_MII_REG 0x07 -#define AX_CMD_WRITE_MII_REG 0x08 -#define AX_CMD_SET_HW_MII 0x0a -#define AX_CMD_READ_EEPROM 0x0b -#define AX_CMD_WRITE_EEPROM 0x0c -#define AX_CMD_WRITE_ENABLE 0x0d -#define AX_CMD_WRITE_DISABLE 0x0e -#define AX_CMD_WRITE_RX_CTL 0x10 -#define AX_CMD_READ_IPG012 0x11 -#define AX_CMD_WRITE_IPG0 0x12 -#define AX_CMD_WRITE_IPG1 0x13 -#define AX_CMD_WRITE_IPG2 0x14 -#define AX_CMD_WRITE_MULTI_FILTER 0x16 -#define AX_CMD_READ_NODE_ID 0x17 -#define AX_CMD_READ_PHY_ID 0x19 -#define AX_CMD_READ_MEDIUM_STATUS 0x1a -#define AX_CMD_WRITE_MEDIUM_MODE 0x1b -#define AX_CMD_READ_MONITOR_MODE 0x1c -#define AX_CMD_WRITE_MONITOR_MODE 0x1d -#define AX_CMD_WRITE_GPIOS 0x1f -#define AX_CMD_SW_RESET 0x20 -#define AX_CMD_SW_PHY_STATUS 0x21 -#define AX_CMD_SW_PHY_SELECT 0x22 -#define AX88772_CMD_READ_NODE_ID 0x13 - -#define AX_MONITOR_MODE 0x01 -#define AX_MONITOR_LINK 0x02 -#define AX_MONITOR_MAGIC 0x04 -#define AX_MONITOR_HSFS 0x10 - -/* AX88172 Medium Status Register values */ -#define AX_MEDIUM_FULL_DUPLEX 0x02 -#define AX_MEDIUM_TX_ABORT_ALLOW 0x04 -#define AX_MEDIUM_FLOW_CONTROL_EN 0x10 - -#define AX_MCAST_FILTER_SIZE 8 -#define AX_MAX_MCAST 64 - -#define AX_EEPROM_LEN 0x40 - -#define AX_SWRESET_CLEAR 0x00 -#define AX_SWRESET_RR 0x01 -#define AX_SWRESET_RT 0x02 -#define AX_SWRESET_PRTE 0x04 -#define AX_SWRESET_PRL 0x08 -#define AX_SWRESET_BZ 0x10 -#define AX_SWRESET_IPRL 0x20 -#define AX_SWRESET_IPPD 0x40 - -#define AX88772_IPG0_DEFAULT 0x15 -#define AX88772_IPG1_DEFAULT 0x0c -#define AX88772_IPG2_DEFAULT 0x12 - -#define AX88772_MEDIUM_FULL_DUPLEX 0x0002 -#define AX88772_MEDIUM_RESERVED 0x0004 -#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010 -#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020 -#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080 -#define AX88772_MEDIUM_RX_ENABLE 0x0100 -#define AX88772_MEDIUM_100MB 0x0200 -#define AX88772_MEDIUM_DEFAULT \ - (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \ - AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \ - AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE ) - -#define AX_EEPROM_MAGIC 0xdeadbeef - -/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ -struct ax8817x_data { - u8 multi_filter[AX_MCAST_FILTER_SIZE]; -}; - -struct ax88172_int_data { - u16 res1; - u8 link; - u16 res2; - u8 status; - u16 res3; -} __attribute__ ((packed)); - -static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - return usb_control_msg( - dev->udev, - usb_rcvctrlpipe(dev->udev, 0), - cmd, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - data, - size, - CONTROL_TIMEOUT_MS); -} - -static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - return usb_control_msg( - dev->udev, - usb_sndctrlpipe(dev->udev, 0), - cmd, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - data, - size, - CONTROL_TIMEOUT_MS); -} - -static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs) -{ - struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; - - if (urb->status < 0) - printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d", - urb->status); - - kfree(req); - usb_free_urb(urb); -} - -static void ax8817x_status(struct usbnet *dev, struct urb *urb) -{ - struct ax88172_int_data *event; - int link; - - if (urb->actual_length < 8) - return; - - event = urb->transfer_buffer; - link = event->link & 0x01; - if (netif_carrier_ok(dev->net) != link) { - if (link) { - netif_carrier_on(dev->net); - defer_kevent (dev, EVENT_LINK_RESET ); - } else - netif_carrier_off(dev->net); - devdbg(dev, "ax8817x - Link Status is: %d", link); - } -} - -static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) -{ - struct usb_ctrlrequest *req; - int status; - struct urb *urb; - - if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { - devdbg(dev, "Error allocating URB in write_cmd_async!"); - return; - } - - if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { - deverr(dev, "Failed to allocate memory for control request"); - usb_free_urb(urb); - return; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - req->bRequest = cmd; - req->wValue = cpu_to_le16(value); - req->wIndex = cpu_to_le16(index); - req->wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, size, - ax8817x_async_cmd_callback, req); - - if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { - deverr(dev, "Error submitting the control message: status=%d", status); - kfree(req); - usb_free_urb(urb); - } -} - -static void ax8817x_set_multicast(struct net_device *net) -{ - struct usbnet *dev = netdev_priv(net); - struct ax8817x_data *data = (struct ax8817x_data *)&dev->data; - u8 rx_ctl = 0x8c; - - if (net->flags & IFF_PROMISC) { - rx_ctl |= 0x01; - } else if (net->flags & IFF_ALLMULTI - || net->mc_count > AX_MAX_MCAST) { - rx_ctl |= 0x02; - } else if (net->mc_count == 0) { - /* just broadcast and directed */ - } else { - /* We use the 20 byte dev->data - * for our 8 byte filter buffer - * to avoid allocating memory that - * is tricky to free later */ - struct dev_mc_list *mc_list = net->mc_list; - u32 crc_bits; - int i; - - memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); - - /* Build the multicast hash filter. */ - for (i = 0; i < net->mc_count; i++) { - crc_bits = - ether_crc(ETH_ALEN, - mc_list->dmi_addr) >> 26; - data->multi_filter[crc_bits >> 3] |= - 1 << (crc_bits & 7); - mc_list = mc_list->next; - } - - ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, - AX_MCAST_FILTER_SIZE, data->multi_filter); - - rx_ctl |= 0x10; - } - - ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); -} - -static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc) -{ - struct usbnet *dev = netdev_priv(netdev); - u16 res; - u8 buf[1]; - - ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); - ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); - - return res & 0xffff; -} - -static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) -{ - struct usbnet *dev = netdev_priv(netdev); - u16 res = val; - u8 buf[1]; - - ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf); - ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf); -} - -static int ax88172_link_reset(struct usbnet *dev) -{ - u16 lpa; - u8 mode; - - mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN; - lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA); - if (lpa & LPA_DUPLEX) - mode |= AX_MEDIUM_FULL_DUPLEX; - ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); - - return 0; -} - -static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) -{ - struct usbnet *dev = netdev_priv(net); - u8 opt; - - if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { - wolinfo->supported = 0; - wolinfo->wolopts = 0; - return; - } - wolinfo->supported = WAKE_PHY | WAKE_MAGIC; - wolinfo->wolopts = 0; - if (opt & AX_MONITOR_MODE) { - if (opt & AX_MONITOR_LINK) - wolinfo->wolopts |= WAKE_PHY; - if (opt & AX_MONITOR_MAGIC) - wolinfo->wolopts |= WAKE_MAGIC; - } -} - -static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) -{ - struct usbnet *dev = netdev_priv(net); - u8 opt = 0; - u8 buf[1]; - - if (wolinfo->wolopts & WAKE_PHY) - opt |= AX_MONITOR_LINK; - if (wolinfo->wolopts & WAKE_MAGIC) - opt |= AX_MONITOR_MAGIC; - if (opt != 0) - opt |= AX_MONITOR_MODE; - - if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, - opt, 0, 0, &buf) < 0) - return -EINVAL; - - return 0; -} - -static int ax8817x_get_eeprom_len(struct net_device *net) -{ - return AX_EEPROM_LEN; -} - -static int ax8817x_get_eeprom(struct net_device *net, - struct ethtool_eeprom *eeprom, u8 *data) -{ - struct usbnet *dev = netdev_priv(net); - u16 *ebuf = (u16 *)data; - int i; - - /* Crude hack to ensure that we don't overwrite memory - * if an odd length is supplied - */ - if (eeprom->len % 2) - return -EINVAL; - - eeprom->magic = AX_EEPROM_MAGIC; - - /* ax8817x returns 2 bytes from eeprom on read */ - for (i=0; i < eeprom->len / 2; i++) { - if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM, - eeprom->offset + i, 0, 2, &ebuf[i]) < 0) - return -EINVAL; - } - return 0; -} - -static void ax8817x_get_drvinfo (struct net_device *net, - struct ethtool_drvinfo *info) -{ - /* Inherit standard device info */ - usbnet_get_drvinfo(net, info); - info->eedump_len = 0x3e; -} - -static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd) -{ - struct usbnet *dev = netdev_priv(net); - - return mii_ethtool_gset(&dev->mii,cmd); -} - -static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd) -{ - struct usbnet *dev = netdev_priv(net); - - return mii_ethtool_sset(&dev->mii,cmd); -} - -/* We need to override some ethtool_ops so we require our - own structure so we don't interfere with other usbnet - devices that may be connected at the same time. */ -static struct ethtool_ops ax8817x_ethtool_ops = { - .get_drvinfo = ax8817x_get_drvinfo, - .get_link = ethtool_op_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, - .get_wol = ax8817x_get_wol, - .set_wol = ax8817x_set_wol, - .get_eeprom_len = ax8817x_get_eeprom_len, - .get_eeprom = ax8817x_get_eeprom, - .get_settings = ax8817x_get_settings, - .set_settings = ax8817x_set_settings, -}; - -static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf) -{ - int ret = 0; - void *buf; - int i; - unsigned long gpio_bits = dev->driver_info->data; - - get_endpoints(dev,intf); - - buf = kmalloc(ETH_ALEN, GFP_KERNEL); - if(!buf) { - ret = -ENOMEM; - goto out1; - } - - /* Toggle the GPIOs in a manufacturer/model specific way */ - for (i = 2; i >= 0; i--) { - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, - (gpio_bits >> (i * 8)) & 0xff, 0, 0, - buf)) < 0) - goto out2; - msleep(5); - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) { - dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret); - goto out2; - } - - /* Get the MAC address */ - memset(buf, 0, ETH_ALEN); - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) { - dbg("read AX_CMD_READ_NODE_ID failed: %d", ret); - goto out2; - } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); - - /* Get the PHY id */ - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { - dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret); - goto out2; - } else if (ret < 2) { - /* this should always return 2 bytes */ - dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret); - ret = -EIO; - goto out2; - } - - /* Initialize MII structure */ - dev->mii.dev = dev->net; - dev->mii.mdio_read = ax8817x_mdio_read; - dev->mii.mdio_write = ax8817x_mdio_write; - dev->mii.phy_id_mask = 0x3f; - dev->mii.reg_num_mask = 0x1f; - dev->mii.phy_id = *((u8 *)buf + 1); - - dev->net->set_multicast_list = ax8817x_set_multicast; - dev->net->ethtool_ops = &ax8817x_ethtool_ops; - - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); - mii_nway_restart(&dev->mii); - - return 0; -out2: - kfree(buf); -out1: - return ret; -} - -static struct ethtool_ops ax88772_ethtool_ops = { - .get_drvinfo = ax8817x_get_drvinfo, - .get_link = ethtool_op_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, - .get_wol = ax8817x_get_wol, - .set_wol = ax8817x_set_wol, - .get_eeprom_len = ax8817x_get_eeprom_len, - .get_eeprom = ax8817x_get_eeprom, - .get_settings = ax8817x_get_settings, - .set_settings = ax8817x_set_settings, -}; - -static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) -{ - int ret; - void *buf; - - get_endpoints(dev,intf); - - buf = kmalloc(6, GFP_KERNEL); - if(!buf) { - dbg ("Cannot allocate memory for buffer"); - ret = -ENOMEM; - goto out1; - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS, - 0x00B0, 0, 0, buf)) < 0) - goto out2; - - msleep(5); - if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) { - dbg("Select PHY #1 failed: %d", ret); - goto out2; - } - - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) { - dbg("Failed to power down internal PHY: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) { - dbg("Failed to perform software reset: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Failed to set Internal/External PHY reset control: %d", ret); - goto out2; - } - - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0, - buf)) < 0) { - dbg("Failed to reset RX_CTL: %d", ret); - goto out2; - } - - /* Get the MAC address */ - memset(buf, 0, ETH_ALEN); - if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) { - dbg("Failed to read MAC address: %d", ret); - goto out2; - } - memcpy(dev->net->dev_addr, buf, ETH_ALEN); - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) { - dbg("Enabling software MII failed: %d", ret); - goto out2; - } - - if (((ret = - ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0) - || (*((u16 *)buf) != 0x003b)) { - dbg("Read PHY register 2 must be 0x3b00: %d", ret); - goto out2; - } - - /* Initialize MII structure */ - dev->mii.dev = dev->net; - dev->mii.mdio_read = ax8817x_mdio_read; - dev->mii.mdio_write = ax8817x_mdio_write; - dev->mii.phy_id_mask = 0xff; - dev->mii.reg_num_mask = 0xff; - - /* Get the PHY id */ - if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) { - dbg("Error reading PHY ID: %02x", ret); - goto out2; - } else if (ret < 2) { - /* this should always return 2 bytes */ - dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", - ret); - ret = -EIO; - goto out2; - } - dev->mii.phy_id = *((u8 *)buf + 1); - - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Set external PHY reset pin level: %d", ret); - goto out2; - } - msleep(150); - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) { - dbg("Set Internal/External PHY reset control: %d", ret); - goto out2; - } - msleep(150); - - - dev->net->set_multicast_list = ax8817x_set_multicast; - dev->net->ethtool_ops = &ax88772_ethtool_ops; - - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, - ADVERTISE_ALL | ADVERTISE_CSMA); - mii_nway_restart(&dev->mii); - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) { - dbg("Write medium mode register: %d", ret); - goto out2; - } - - if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) { - dbg("Write IPG,IPG1,IPG2 failed: %d", ret); - goto out2; - } - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) { - dbg("Failed to set hardware MII: %02x", ret); - goto out2; - } - - /* Set RX_CTL to default values with 2k buffer, and enable cactus */ - if ((ret = - ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0, - buf)) < 0) { - dbg("Reset RX_CTL failed: %d", ret); - goto out2; - } - - kfree(buf); - - return 0; - -out2: - kfree(buf); -out1: - return ret; -} - -static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb) -{ - u32 *header; - char *packet; - struct sk_buff *ax_skb; - u16 size; - - header = (u32 *) skb->data; - le32_to_cpus(header); - packet = (char *)(header + 1); - - skb_pull(skb, 4); - - while (skb->len > 0) { - if ((short)(*header & 0x0000ffff) != - ~((short)((*header & 0xffff0000) >> 16))) { - devdbg(dev,"header length data is error"); - } - /* get the packet length */ - size = (u16) (*header & 0x0000ffff); - - if ((skb->len) - ((size + 1) & 0xfffe) == 0) - return 2; - if (size > ETH_FRAME_LEN) { - devdbg(dev,"invalid rx length %d", size); - return 0; - } - ax_skb = skb_clone(skb, GFP_ATOMIC); - if (ax_skb) { - ax_skb->len = size; - ax_skb->data = packet; - ax_skb->tail = packet + size; - skb_return(dev, ax_skb); - } else { - return 0; - } - - skb_pull(skb, (size + 1) & 0xfffe); - - if (skb->len == 0) - break; - - header = (u32 *) skb->data; - le32_to_cpus(header); - packet = (char *)(header + 1); - skb_pull(skb, 4); - } - - if (skb->len < 0) { - devdbg(dev,"invalid rx length %d", skb->len); - return 0; - } - return 1; -} - -static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb, - int flags) -{ - int padlen; - int headroom = skb_headroom(skb); - int tailroom = skb_tailroom(skb); - u32 *packet_len; - u32 *padbytes_ptr; - - padlen = ((skb->len + 4) % 512) ? 0 : 4; - - if ((!skb_cloned(skb)) - && ((headroom + tailroom) >= (4 + padlen))) { - if ((headroom < 4) || (tailroom < padlen)) { - skb->data = memmove(skb->head + 4, skb->data, skb->len); - skb->tail = skb->data + skb->len; - } - } else { - struct sk_buff *skb2; - skb2 = skb_copy_expand(skb, 4, padlen, flags); - dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; - } - - packet_len = (u32 *) skb_push(skb, 4); - - packet_len = (u32 *) skb->data; - *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); - - if ((skb->len % 512) == 0) { - padbytes_ptr = (u32 *) skb->tail; - *padbytes_ptr = 0xffff0000; - skb_put(skb, padlen); - } - return skb; -} - -static int ax88772_link_reset(struct usbnet *dev) -{ - u16 lpa; - u16 mode; - - mode = AX88772_MEDIUM_DEFAULT; - lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA); - - if ((lpa & LPA_DUPLEX) == 0) - mode &= ~AX88772_MEDIUM_FULL_DUPLEX; - if ((lpa & LPA_100) == 0) - mode &= ~AX88772_MEDIUM_100MB; - ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); - - return 0; -} - -static const struct driver_info ax8817x_info = { - .description = "ASIX AX8817x USB 2.0 Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x00130103, -}; - -static const struct driver_info dlink_dub_e100_info = { - .description = "DLink DUB-E100 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x009f9d9f, -}; - -static const struct driver_info netgear_fa120_info = { - .description = "Netgear FA-120 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x00130103, -}; - -static const struct driver_info hawking_uf200_info = { - .description = "Hawking UF200 USB Ethernet", - .bind = ax8817x_bind, - .status = ax8817x_status, - .link_reset = ax88172_link_reset, - .reset = ax88172_link_reset, - .flags = FLAG_ETHER, - .data = 0x001f1d1f, -}; - -static const struct driver_info ax88772_info = { - .description = "ASIX AX88772 USB 2.0 Ethernet", - .bind = ax88772_bind, - .status = ax8817x_status, - .link_reset = ax88772_link_reset, - .reset = ax88772_link_reset, - .flags = FLAG_ETHER | FLAG_FRAMING_AX, - .rx_fixup = ax88772_rx_fixup, - .tx_fixup = ax88772_tx_fixup, - .data = 0x00130103, -}; - -#endif /* CONFIG_USB_AX8817X */ - - - -#ifdef CONFIG_USB_BELKIN -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Belkin F5U104 ... two NetChip 2280 devices + Atmel microcontroller - * - * ... also two eTEK designs, including one sold as "Advance USBNET" - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info belkin_info = { - .description = "Belkin, eTEK, or compatible", -}; - -#endif /* CONFIG_USB_BELKIN */ - - - -/*------------------------------------------------------------------------- - * - * Communications Device Class declarations. - * Used by CDC Ethernet, and some CDC variants - * - *-------------------------------------------------------------------------*/ - -#ifdef CONFIG_USB_CDCETHER -#define NEED_GENERIC_CDC -#endif - -#ifdef CONFIG_USB_ZAURUS -/* Ethernet variant uses funky framing, broken ethernet addressing */ -#define NEED_GENERIC_CDC -#endif - -#ifdef CONFIG_USB_RNDIS -/* ACM variant uses even funkier framing, complex control RPC scheme */ -#define NEED_GENERIC_CDC -#endif - - -#ifdef NEED_GENERIC_CDC - -#include <linux/usb_cdc.h> - -struct cdc_state { - struct usb_cdc_header_desc *header; - struct usb_cdc_union_desc *u; - struct usb_cdc_ether_desc *ether; - struct usb_interface *control; - struct usb_interface *data; -}; - -static struct usb_driver usbnet_driver; - -/* - * probes control interface, claims data interface, collects the bulk - * endpoints, activates data interface (if needed), maybe sets MTU. - * all pure cdc, except for certain firmware workarounds. - */ -static int generic_cdc_bind (struct usbnet *dev, struct usb_interface *intf) -{ - u8 *buf = intf->cur_altsetting->extra; - int len = intf->cur_altsetting->extralen; - struct usb_interface_descriptor *d; - struct cdc_state *info = (void *) &dev->data; - int status; - int rndis; - - if (sizeof dev->data < sizeof *info) - return -EDOM; - - /* expect strict spec conformance for the descriptors, but - * cope with firmware which stores them in the wrong place - */ - if (len == 0 && dev->udev->actconfig->extralen) { - /* Motorola SB4100 (and others: Brad Hards says it's - * from a Broadcom design) put CDC descriptors here - */ - buf = dev->udev->actconfig->extra; - len = dev->udev->actconfig->extralen; - if (len) - dev_dbg (&intf->dev, - "CDC descriptors on config\n"); - } - - /* this assumes that if there's a non-RNDIS vendor variant - * of cdc-acm, it'll fail RNDIS requests cleanly. - */ - rndis = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff); - - memset (info, 0, sizeof *info); - info->control = intf; - while (len > 3) { - if (buf [1] != USB_DT_CS_INTERFACE) - goto next_desc; - - /* use bDescriptorSubType to identify the CDC descriptors. - * We expect devices with CDC header and union descriptors. - * For CDC Ethernet we need the ethernet descriptor. - * For RNDIS, ignore two (pointless) CDC modem descriptors - * in favor of a complicated OID-based RPC scheme doing what - * CDC Ethernet achieves with a simple descriptor. - */ - switch (buf [2]) { - case USB_CDC_HEADER_TYPE: - if (info->header) { - dev_dbg (&intf->dev, "extra CDC header\n"); - goto bad_desc; - } - info->header = (void *) buf; - if (info->header->bLength != sizeof *info->header) { - dev_dbg (&intf->dev, "CDC header len %u\n", - info->header->bLength); - goto bad_desc; - } - break; - case USB_CDC_UNION_TYPE: - if (info->u) { - dev_dbg (&intf->dev, "extra CDC union\n"); - goto bad_desc; - } - info->u = (void *) buf; - if (info->u->bLength != sizeof *info->u) { - dev_dbg (&intf->dev, "CDC union len %u\n", - info->u->bLength); - goto bad_desc; - } - - /* we need a master/control interface (what we're - * probed with) and a slave/data interface; union - * descriptors sort this all out. - */ - info->control = usb_ifnum_to_if(dev->udev, - info->u->bMasterInterface0); - info->data = usb_ifnum_to_if(dev->udev, - info->u->bSlaveInterface0); - if (!info->control || !info->data) { - dev_dbg (&intf->dev, - "master #%u/%p slave #%u/%p\n", - info->u->bMasterInterface0, - info->control, - info->u->bSlaveInterface0, - info->data); - goto bad_desc; - } - if (info->control != intf) { - dev_dbg (&intf->dev, "bogus CDC Union\n"); - /* Ambit USB Cable Modem (and maybe others) - * interchanges master and slave interface. - */ - if (info->data == intf) { - info->data = info->control; - info->control = intf; - } else - goto bad_desc; - } - - /* a data interface altsetting does the real i/o */ - d = &info->data->cur_altsetting->desc; - if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { - dev_dbg (&intf->dev, "slave class %u\n", - d->bInterfaceClass); - goto bad_desc; - } - break; - case USB_CDC_ETHERNET_TYPE: - if (info->ether) { - dev_dbg (&intf->dev, "extra CDC ether\n"); - goto bad_desc; - } - info->ether = (void *) buf; - if (info->ether->bLength != sizeof *info->ether) { - dev_dbg (&intf->dev, "CDC ether len %u\n", - info->ether->bLength); - goto bad_desc; - } - dev->net->mtu = le16_to_cpup ( - &info->ether->wMaxSegmentSize) - - ETH_HLEN; - /* because of Zaurus, we may be ignoring the host - * side link address we were given. - */ - break; - } -next_desc: - len -= buf [0]; /* bLength */ - buf += buf [0]; - } - - if (!info->header || !info->u || (!rndis && !info->ether)) { - dev_dbg (&intf->dev, "missing cdc %s%s%sdescriptor\n", - info->header ? "" : "header ", - info->u ? "" : "union ", - info->ether ? "" : "ether "); - goto bad_desc; - } - - /* claim data interface and set it up ... with side effects. - * network traffic can't flow until an altsetting is enabled. - */ - status = usb_driver_claim_interface (&usbnet_driver, info->data, dev); - if (status < 0) - return status; - status = get_endpoints (dev, info->data); - if (status < 0) { - /* ensure immediate exit from usbnet_disconnect */ - usb_set_intfdata(info->data, NULL); - usb_driver_release_interface (&usbnet_driver, info->data); - return status; - } - - /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */ - dev->status = NULL; - if (info->control->cur_altsetting->desc.bNumEndpoints == 1) { - struct usb_endpoint_descriptor *desc; - - dev->status = &info->control->cur_altsetting->endpoint [0]; - desc = &dev->status->desc; - if (desc->bmAttributes != USB_ENDPOINT_XFER_INT - || !(desc->bEndpointAddress & USB_DIR_IN) - || (le16_to_cpu(desc->wMaxPacketSize) - < sizeof (struct usb_cdc_notification)) - || !desc->bInterval) { - dev_dbg (&intf->dev, "bad notification endpoint\n"); - dev->status = NULL; - } - } - if (rndis && !dev->status) { - dev_dbg (&intf->dev, "missing RNDIS status endpoint\n"); - usb_set_intfdata(info->data, NULL); - usb_driver_release_interface (&usbnet_driver, info->data); - return -ENODEV; - } - return 0; - -bad_desc: - dev_info (&dev->udev->dev, "bad CDC descriptors\n"); - return -ENODEV; -} - -static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf) -{ - struct cdc_state *info = (void *) &dev->data; - - /* disconnect master --> disconnect slave */ - if (intf == info->control && info->data) { - /* ensure immediate exit from usbnet_disconnect */ - usb_set_intfdata(info->data, NULL); - usb_driver_release_interface (&usbnet_driver, info->data); - info->data = NULL; - } - - /* and vice versa (just in case) */ - else if (intf == info->data && info->control) { - /* ensure immediate exit from usbnet_disconnect */ - usb_set_intfdata(info->control, NULL); - usb_driver_release_interface (&usbnet_driver, info->control); - info->control = NULL; - } -} - -#endif /* NEED_GENERIC_CDC */ - - -#ifdef CONFIG_USB_CDCETHER -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Communications Device Class, Ethernet Control model - * - * Takes two interfaces. The DATA interface is inactive till an altsetting - * is selected. Configuration data includes class descriptors. - * - * This should interop with whatever the 2.4 "CDCEther.c" driver - * (by Brad Hards) talked with. - * - *-------------------------------------------------------------------------*/ - -#include <linux/ctype.h> - - -static void dumpspeed (struct usbnet *dev, __le32 *speeds) -{ - if (netif_msg_timer (dev)) - devinfo (dev, "link speeds: %u kbps up, %u kbps down", - __le32_to_cpu(speeds[0]) / 1000, - __le32_to_cpu(speeds[1]) / 1000); -} - -static void cdc_status (struct usbnet *dev, struct urb *urb) -{ - struct usb_cdc_notification *event; - - if (urb->actual_length < sizeof *event) - return; - - /* SPEED_CHANGE can get split into two 8-byte packets */ - if (test_and_clear_bit (EVENT_STS_SPLIT, &dev->flags)) { - dumpspeed (dev, (__le32 *) urb->transfer_buffer); - return; - } - - event = urb->transfer_buffer; - switch (event->bNotificationType) { - case USB_CDC_NOTIFY_NETWORK_CONNECTION: - if (netif_msg_timer (dev)) - devdbg (dev, "CDC: carrier %s", - event->wValue ? "on" : "off"); - if (event->wValue) - netif_carrier_on(dev->net); - else - netif_carrier_off(dev->net); - break; - case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ - if (netif_msg_timer (dev)) - devdbg (dev, "CDC: speed change (len %d)", - urb->actual_length); - if (urb->actual_length != (sizeof *event + 8)) - set_bit (EVENT_STS_SPLIT, &dev->flags); - else - dumpspeed (dev, (__le32 *) &event[1]); - break; - // case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: /* RNDIS; or unsolicited */ - default: - deverr (dev, "CDC: unexpected notification %02x!", - event->bNotificationType); - break; - } -} - -static u8 nibble (unsigned char c) -{ - if (likely (isdigit (c))) - return c - '0'; - c = toupper (c); - if (likely (isxdigit (c))) - return 10 + c - 'A'; - return 0; -} - -static inline int -get_ethernet_addr (struct usbnet *dev, struct usb_cdc_ether_desc *e) -{ - int tmp, i; - unsigned char buf [13]; - - tmp = usb_string (dev->udev, e->iMACAddress, buf, sizeof buf); - if (tmp != 12) { - dev_dbg (&dev->udev->dev, - "bad MAC string %d fetch, %d\n", e->iMACAddress, tmp); - if (tmp >= 0) - tmp = -EINVAL; - return tmp; - } - for (i = tmp = 0; i < 6; i++, tmp += 2) - dev->net->dev_addr [i] = - (nibble (buf [tmp]) << 4) + nibble (buf [tmp + 1]); - return 0; -} - -static int cdc_bind (struct usbnet *dev, struct usb_interface *intf) -{ - int status; - struct cdc_state *info = (void *) &dev->data; - - status = generic_cdc_bind (dev, intf); - if (status < 0) - return status; - - status = get_ethernet_addr (dev, info->ether); - if (status < 0) { - usb_set_intfdata(info->data, NULL); - usb_driver_release_interface (&usbnet_driver, info->data); - return status; - } - - /* FIXME cdc-ether has some multicast code too, though it complains - * in routine cases. info->ether describes the multicast support. - */ - return 0; -} - -static const struct driver_info cdc_info = { - .description = "CDC Ethernet Device", - .flags = FLAG_ETHER, - // .check_connect = cdc_check_connect, - .bind = cdc_bind, - .unbind = cdc_unbind, - .status = cdc_status, -}; - -#endif /* CONFIG_USB_CDCETHER */ - - - -#ifdef CONFIG_USB_EPSON2888 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * EPSON USB clients - * - * This is the same idea as Linux PDAs (below) except the firmware in the - * device might not be Tux-powered. Epson provides reference firmware that - * implements this interface. Product developers can reuse or modify that - * code, such as by using their own product and vendor codes. - * - * Support was from Juro Bystricky <bystricky.juro@erd.epson.com> - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info epson2888_info = { - .description = "Epson USB Device", - .check_connect = always_connected, - - .in = 4, .out = 3, -}; - -#endif /* CONFIG_USB_EPSON2888 */ - - -#ifdef CONFIG_USB_GENESYS -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * GeneSys GL620USB-A (www.genesyslogic.com.tw) - * - * ... should partially interop with the Win32 driver for this hardware - * The GeneSys docs imply there's some NDIS issue motivating this framing. - * - * Some info from GeneSys: - * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk. - * (Some cables, like the BAFO-100c, use the half duplex version.) - * - For the full duplex model, the low bit of the version code says - * which side is which ("left/right"). - * - For the half duplex type, a control/interrupt handshake settles - * the transfer direction. (That's disabled here, partially coded.) - * A control URB would block until other side writes an interrupt. - * - * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw> - * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>. - * - *-------------------------------------------------------------------------*/ - -// control msg write command -#define GENELINK_CONNECT_WRITE 0xF0 -// interrupt pipe index -#define GENELINK_INTERRUPT_PIPE 0x03 -// interrupt read buffer size -#define INTERRUPT_BUFSIZE 0x08 -// interrupt pipe interval value -#define GENELINK_INTERRUPT_INTERVAL 0x10 -// max transmit packet number per transmit -#define GL_MAX_TRANSMIT_PACKETS 32 -// max packet length -#define GL_MAX_PACKET_LEN 1514 -// max receive buffer size -#define GL_RCV_BUF_SIZE \ - (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4) - -struct gl_packet { - u32 packet_length; - char packet_data [1]; -}; - -struct gl_header { - u32 packet_count; - struct gl_packet packets; -}; - -#ifdef GENELINK_ACK - -// FIXME: this code is incomplete, not debugged; it doesn't -// handle interrupts correctly. interrupts should be generic -// code like all other device I/O, anyway. - -struct gl_priv { - struct urb *irq_urb; - char irq_buf [INTERRUPT_BUFSIZE]; -}; - -static inline int gl_control_write (struct usbnet *dev, u8 request, u16 value) -{ - int retval; - - retval = usb_control_msg (dev->udev, - usb_sndctrlpipe (dev->udev, 0), - request, - USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, - value, - 0, // index - 0, // data buffer - 0, // size - CONTROL_TIMEOUT_MS); - return retval; -} - -static void gl_interrupt_complete (struct urb *urb, struct pt_regs *regs) -{ - int status = urb->status; - - switch (status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", - __FUNCTION__, status); - return; - default: - dbg("%s - nonzero urb status received: %d", - __FUNCTION__, urb->status); - } - - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); -} - -static int gl_interrupt_read (struct usbnet *dev) -{ - struct gl_priv *priv = dev->priv_data; - int retval; - - // issue usb interrupt read - if (priv && priv->irq_urb) { - // submit urb - if ((retval = usb_submit_urb (priv->irq_urb, GFP_KERNEL)) != 0) - dbg ("gl_interrupt_read: submit fail - %X...", retval); - else - dbg ("gl_interrupt_read: submit success..."); - } - - return 0; -} - -// check whether another side is connected -static int genelink_check_connect (struct usbnet *dev) -{ - int retval; - - dbg ("genelink_check_connect..."); - - // detect whether another side is connected - if ((retval = gl_control_write (dev, GENELINK_CONNECT_WRITE, 0)) != 0) { - dbg ("%s: genelink_check_connect write fail - %X", - dev->net->name, retval); - return retval; - } - - // usb interrupt read to ack another side - if ((retval = gl_interrupt_read (dev)) != 0) { - dbg ("%s: genelink_check_connect read fail - %X", - dev->net->name, retval); - return retval; - } - - dbg ("%s: genelink_check_connect read success", dev->net->name); - return 0; -} - -// allocate and initialize the private data for genelink -static int genelink_init (struct usbnet *dev) -{ - struct gl_priv *priv; - - // allocate the private data structure - if ((priv = kmalloc (sizeof *priv, GFP_KERNEL)) == 0) { - dbg ("%s: cannot allocate private data per device", - dev->net->name); - return -ENOMEM; - } - - // allocate irq urb - if ((priv->irq_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) { - dbg ("%s: cannot allocate private irq urb per device", - dev->net->name); - kfree (priv); - return -ENOMEM; - } - - // fill irq urb - usb_fill_int_urb (priv->irq_urb, dev->udev, - usb_rcvintpipe (dev->udev, GENELINK_INTERRUPT_PIPE), - priv->irq_buf, INTERRUPT_BUFSIZE, - gl_interrupt_complete, 0, - GENELINK_INTERRUPT_INTERVAL); - - // set private data pointer - dev->priv_data = priv; - - return 0; -} - -// release the private data -static int genelink_free (struct usbnet *dev) -{ - struct gl_priv *priv = dev->priv_data; - - if (!priv) - return 0; - -// FIXME: can't cancel here; it's synchronous, and -// should have happened earlier in any case (interrupt -// handling needs to be generic) - - // cancel irq urb first - usb_kill_urb (priv->irq_urb); - - // free irq urb - usb_free_urb (priv->irq_urb); - - // free the private data structure - kfree (priv); - - return 0; -} - -#endif - -static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb) -{ - struct gl_header *header; - struct gl_packet *packet; - struct sk_buff *gl_skb; - u32 size; - - header = (struct gl_header *) skb->data; - - // get the packet count of the received skb - le32_to_cpus (&header->packet_count); - if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS) - || (header->packet_count < 0)) { - dbg ("genelink: invalid received packet count %d", - header->packet_count); - return 0; - } - - // set the current packet pointer to the first packet - packet = &header->packets; - - // decrement the length for the packet count size 4 bytes - skb_pull (skb, 4); - - while (header->packet_count > 1) { - // get the packet length - size = packet->packet_length; - - // this may be a broken packet - if (size > GL_MAX_PACKET_LEN) { - dbg ("genelink: invalid rx length %d", size); - return 0; - } - - // allocate the skb for the individual packet - gl_skb = alloc_skb (size, GFP_ATOMIC); - if (gl_skb) { - - // copy the packet data to the new skb - memcpy(skb_put(gl_skb, size), packet->packet_data, size); - skb_return (dev, gl_skb); - } - - // advance to the next packet - packet = (struct gl_packet *) - &packet->packet_data [size]; - header->packet_count--; - - // shift the data pointer to the next gl_packet - skb_pull (skb, size + 4); - } - - // skip the packet length field 4 bytes - skb_pull (skb, 4); - - if (skb->len > GL_MAX_PACKET_LEN) { - dbg ("genelink: invalid rx length %d", skb->len); - return 0; - } - return 1; -} - -static struct sk_buff * -genelink_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) -{ - int padlen; - int length = skb->len; - int headroom = skb_headroom (skb); - int tailroom = skb_tailroom (skb); - u32 *packet_count; - u32 *packet_len; - - // FIXME: magic numbers, bleech - padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1; - - if ((!skb_cloned (skb)) - && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) { - if ((headroom < (4 + 4*1)) || (tailroom < padlen)) { - skb->data = memmove (skb->head + (4 + 4*1), - skb->data, skb->len); - skb->tail = skb->data + skb->len; - } - } else { - struct sk_buff *skb2; - skb2 = skb_copy_expand (skb, (4 + 4*1) , padlen, flags); - dev_kfree_skb_any (skb); - skb = skb2; - if (!skb) - return NULL; - } - - // attach the packet count to the header - packet_count = (u32 *) skb_push (skb, (4 + 4*1)); - packet_len = packet_count + 1; - - // FIXME little endian? - *packet_count = 1; - *packet_len = length; - - // add padding byte - if ((skb->len % dev->maxpacket) == 0) - skb_put (skb, 1); - - return skb; -} - -static const struct driver_info genelink_info = { - .description = "Genesys GeneLink", - .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT, - .rx_fixup = genelink_rx_fixup, - .tx_fixup = genelink_tx_fixup, - - .in = 1, .out = 2, - -#ifdef GENELINK_ACK - .check_connect =genelink_check_connect, -#endif -}; - -#endif /* CONFIG_USB_GENESYS */ - - - -#ifdef CONFIG_USB_NET1080 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Netchip 1080 driver ... http://www.netchip.com - * Used in LapLink cables - * - *-------------------------------------------------------------------------*/ - -#define dev_packet_id data[0] -#define frame_errors data[1] - -/* - * NetChip framing of ethernet packets, supporting additional error - * checks for links that may drop bulk packets from inside messages. - * Odd USB length == always short read for last usb packet. - * - nc_header - * - Ethernet header (14 bytes) - * - payload - * - (optional padding byte, if needed so length becomes odd) - * - nc_trailer - * - * This framing is to be avoided for non-NetChip devices. - */ - -struct nc_header { // packed: - __le16 hdr_len; // sizeof nc_header (LE, all) - __le16 packet_len; // payload size (including ethhdr) - __le16 packet_id; // detects dropped packets -#define MIN_HEADER 6 - - // all else is optional, and must start with: - // u16 vendorId; // from usb-if - // u16 productId; -} __attribute__((__packed__)); - -#define PAD_BYTE ((unsigned char)0xAC) - -struct nc_trailer { - __le16 packet_id; -} __attribute__((__packed__)); - -// packets may use FLAG_FRAMING_NC and optional pad -#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \ - + sizeof (struct ethhdr) \ - + (mtu) \ - + 1 \ - + sizeof (struct nc_trailer)) - -#define MIN_FRAMED FRAMED_SIZE(0) - - -/* - * Zero means no timeout; else, how long a 64 byte bulk packet may be queued - * before the hardware drops it. If that's done, the driver will need to - * frame network packets to guard against the dropped USB packets. The win32 - * driver sets this for both sides of the link. - */ -#define NC_READ_TTL_MS ((u8)255) // ms - -/* - * We ignore most registers and EEPROM contents. - */ -#define REG_USBCTL ((u8)0x04) -#define REG_TTL ((u8)0x10) -#define REG_STATUS ((u8)0x11) - -/* - * Vendor specific requests to read/write data - */ -#define REQUEST_REGISTER ((u8)0x10) -#define REQUEST_EEPROM ((u8)0x11) - -static int -nc_vendor_read (struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr) -{ - int status = usb_control_msg (dev->udev, - usb_rcvctrlpipe (dev->udev, 0), - req, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0, regnum, - retval_ptr, sizeof *retval_ptr, - CONTROL_TIMEOUT_MS); - if (status > 0) - status = 0; - if (!status) - le16_to_cpus (retval_ptr); - return status; -} - -static inline int -nc_register_read (struct usbnet *dev, u8 regnum, u16 *retval_ptr) -{ - return nc_vendor_read (dev, REQUEST_REGISTER, regnum, retval_ptr); -} - -// no retval ... can become async, usable in_interrupt() -static void -nc_vendor_write (struct usbnet *dev, u8 req, u8 regnum, u16 value) -{ - usb_control_msg (dev->udev, - usb_sndctrlpipe (dev->udev, 0), - req, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, regnum, - NULL, 0, // data is in setup packet - CONTROL_TIMEOUT_MS); -} - -static inline void -nc_register_write (struct usbnet *dev, u8 regnum, u16 value) -{ - nc_vendor_write (dev, REQUEST_REGISTER, regnum, value); -} - - -#if 0 -static void nc_dump_registers (struct usbnet *dev) -{ - u8 reg; - u16 *vp = kmalloc (sizeof (u16)); - - if (!vp) { - dbg ("no memory?"); - return; - } - - dbg ("%s registers:", dev->net->name); - for (reg = 0; reg < 0x20; reg++) { - int retval; - - // reading some registers is trouble - if (reg >= 0x08 && reg <= 0xf) - continue; - if (reg >= 0x12 && reg <= 0x1e) - continue; - - retval = nc_register_read (dev, reg, vp); - if (retval < 0) - dbg ("%s reg [0x%x] ==> error %d", - dev->net->name, reg, retval); - else - dbg ("%s reg [0x%x] = 0x%x", - dev->net->name, reg, *vp); - } - kfree (vp); -} -#endif - - -/*-------------------------------------------------------------------------*/ - -/* - * Control register - */ - -#define USBCTL_WRITABLE_MASK 0x1f0f -// bits 15-13 reserved, r/o -#define USBCTL_ENABLE_LANG (1 << 12) -#define USBCTL_ENABLE_MFGR (1 << 11) -#define USBCTL_ENABLE_PROD (1 << 10) -#define USBCTL_ENABLE_SERIAL (1 << 9) -#define USBCTL_ENABLE_DEFAULTS (1 << 8) -// bits 7-4 reserved, r/o -#define USBCTL_FLUSH_OTHER (1 << 3) -#define USBCTL_FLUSH_THIS (1 << 2) -#define USBCTL_DISCONN_OTHER (1 << 1) -#define USBCTL_DISCONN_THIS (1 << 0) - -static inline void nc_dump_usbctl (struct usbnet *dev, u16 usbctl) -{ - if (!netif_msg_link (dev)) - return; - devdbg (dev, "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s;" - " this%s%s;" - " other%s%s; r/o 0x%x", - dev->udev->bus->bus_name, dev->udev->devpath, - usbctl, - (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "", - (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "", - (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "", - (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "", - (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "", - - (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "", - (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "", - (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "", - (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "", - usbctl & ~USBCTL_WRITABLE_MASK - ); -} - -/*-------------------------------------------------------------------------*/ - -/* - * Status register - */ - -#define STATUS_PORT_A (1 << 15) - -#define STATUS_CONN_OTHER (1 << 14) -#define STATUS_SUSPEND_OTHER (1 << 13) -#define STATUS_MAILBOX_OTHER (1 << 12) -#define STATUS_PACKETS_OTHER(n) (((n) >> 8) && 0x03) - -#define STATUS_CONN_THIS (1 << 6) -#define STATUS_SUSPEND_THIS (1 << 5) -#define STATUS_MAILBOX_THIS (1 << 4) -#define STATUS_PACKETS_THIS(n) (((n) >> 0) && 0x03) - -#define STATUS_UNSPEC_MASK 0x0c8c -#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK)) - - -static inline void nc_dump_status (struct usbnet *dev, u16 status) -{ - if (!netif_msg_link (dev)) - return; - devdbg (dev, "net1080 %s-%s status 0x%x:" - " this (%c) PKT=%d%s%s%s;" - " other PKT=%d%s%s%s; unspec 0x%x", - dev->udev->bus->bus_name, dev->udev->devpath, - status, - - // XXX the packet counts don't seem right - // (1 at reset, not 0); maybe UNSPEC too - - (status & STATUS_PORT_A) ? 'A' : 'B', - STATUS_PACKETS_THIS (status), - (status & STATUS_CONN_THIS) ? " CON" : "", - (status & STATUS_SUSPEND_THIS) ? " SUS" : "", - (status & STATUS_MAILBOX_THIS) ? " MBOX" : "", - - STATUS_PACKETS_OTHER (status), - (status & STATUS_CONN_OTHER) ? " CON" : "", - (status & STATUS_SUSPEND_OTHER) ? " SUS" : "", - (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "", - - status & STATUS_UNSPEC_MASK - ); -} - -/*-------------------------------------------------------------------------*/ - -/* - * TTL register - */ - -#define TTL_THIS(ttl) (0x00ff & ttl) -#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8)) -#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this)))) - -static inline void nc_dump_ttl (struct usbnet *dev, u16 ttl) -{ - if (netif_msg_link (dev)) - devdbg (dev, "net1080 %s-%s ttl 0x%x this = %d, other = %d", - dev->udev->bus->bus_name, dev->udev->devpath, - ttl, TTL_THIS (ttl), TTL_OTHER (ttl)); -} - -/*-------------------------------------------------------------------------*/ - -static int net1080_reset (struct usbnet *dev) -{ - u16 usbctl, status, ttl; - u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL); - int retval; - - if (!vp) - return -ENOMEM; - - // nc_dump_registers (dev); - - if ((retval = nc_register_read (dev, REG_STATUS, vp)) < 0) { - dbg ("can't read %s-%s status: %d", - dev->udev->bus->bus_name, dev->udev->devpath, retval); - goto done; - } - status = *vp; - nc_dump_status (dev, status); - - if ((retval = nc_register_read (dev, REG_USBCTL, vp)) < 0) { - dbg ("can't read USBCTL, %d", retval); - goto done; - } - usbctl = *vp; - nc_dump_usbctl (dev, usbctl); - - nc_register_write (dev, REG_USBCTL, - USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER); - - if ((retval = nc_register_read (dev, REG_TTL, vp)) < 0) { - dbg ("can't read TTL, %d", retval); - goto done; - } - ttl = *vp; - // nc_dump_ttl (dev, ttl); - - nc_register_write (dev, REG_TTL, - MK_TTL (NC_READ_TTL_MS, TTL_OTHER (ttl)) ); - dbg ("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS); - - if (netif_msg_link (dev)) - devinfo (dev, "port %c, peer %sconnected", - (status & STATUS_PORT_A) ? 'A' : 'B', - (status & STATUS_CONN_OTHER) ? "" : "dis" - ); - retval = 0; - -done: - kfree (vp); - return retval; -} - -static int net1080_check_connect (struct usbnet *dev) -{ - int retval; - u16 status; - u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL); - - if (!vp) - return -ENOMEM; - retval = nc_register_read (dev, REG_STATUS, vp); - status = *vp; - kfree (vp); - if (retval != 0) { - dbg ("%s net1080_check_conn read - %d", dev->net->name, retval); - return retval; - } - if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER) - return -ENOLINK; - return 0; -} - -static void nc_flush_complete (struct urb *urb, struct pt_regs *regs) -{ - kfree (urb->context); - usb_free_urb(urb); -} - -static void nc_ensure_sync (struct usbnet *dev) -{ - dev->frame_errors++; - if (dev->frame_errors > 5) { - struct urb *urb; - struct usb_ctrlrequest *req; - int status; - - /* Send a flush */ - urb = usb_alloc_urb (0, SLAB_ATOMIC); - if (!urb) - return; - - req = kmalloc (sizeof *req, GFP_ATOMIC); - if (!req) { - usb_free_urb (urb); - return; - } - - req->bRequestType = USB_DIR_OUT - | USB_TYPE_VENDOR - | USB_RECIP_DEVICE; - req->bRequest = REQUEST_REGISTER; - req->wValue = cpu_to_le16 (USBCTL_FLUSH_THIS - | USBCTL_FLUSH_OTHER); - req->wIndex = cpu_to_le16 (REG_USBCTL); - req->wLength = cpu_to_le16 (0); - - /* queue an async control request, we don't need - * to do anything when it finishes except clean up. - */ - usb_fill_control_urb (urb, dev->udev, - usb_sndctrlpipe (dev->udev, 0), - (unsigned char *) req, - NULL, 0, - nc_flush_complete, req); - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) { - kfree (req); - usb_free_urb (urb); - return; - } - - if (netif_msg_rx_err (dev)) - devdbg (dev, "flush net1080; too many framing errors"); - dev->frame_errors = 0; - } -} - -static int net1080_rx_fixup (struct usbnet *dev, struct sk_buff *skb) -{ - struct nc_header *header; - struct nc_trailer *trailer; - u16 hdr_len, packet_len; - - if (!(skb->len & 0x01) - || MIN_FRAMED > skb->len - || skb->len > FRAMED_SIZE (dev->net->mtu)) { - dev->stats.rx_frame_errors++; - dbg ("rx framesize %d range %d..%d mtu %d", skb->len, - (int)MIN_FRAMED, (int)FRAMED_SIZE (dev->net->mtu), - dev->net->mtu); - nc_ensure_sync (dev); - return 0; - } - - header = (struct nc_header *) skb->data; - hdr_len = le16_to_cpup (&header->hdr_len); - packet_len = le16_to_cpup (&header->packet_len); - if (FRAMED_SIZE (packet_len) > MAX_PACKET) { - dev->stats.rx_frame_errors++; - dbg ("packet too big, %d", packet_len); - nc_ensure_sync (dev); - return 0; - } else if (hdr_len < MIN_HEADER) { - dev->stats.rx_frame_errors++; - dbg ("header too short, %d", hdr_len); - nc_ensure_sync (dev); - return 0; - } else if (hdr_len > MIN_HEADER) { - // out of band data for us? - dbg ("header OOB, %d bytes", hdr_len - MIN_HEADER); - nc_ensure_sync (dev); - // switch (vendor/product ids) { ... } - } - skb_pull (skb, hdr_len); - - trailer = (struct nc_trailer *) - (skb->data + skb->len - sizeof *trailer); - skb_trim (skb, skb->len - sizeof *trailer); - - if ((packet_len & 0x01) == 0) { - if (skb->data [packet_len] != PAD_BYTE) { - dev->stats.rx_frame_errors++; - dbg ("bad pad"); - return 0; - } - skb_trim (skb, skb->len - 1); - } - if (skb->len != packet_len) { - dev->stats.rx_frame_errors++; - dbg ("bad packet len %d (expected %d)", - skb->len, packet_len); - nc_ensure_sync (dev); - return 0; - } - if (header->packet_id != get_unaligned (&trailer->packet_id)) { - dev->stats.rx_fifo_errors++; - dbg ("(2+ dropped) rx packet_id mismatch 0x%x 0x%x", - le16_to_cpu (header->packet_id), - le16_to_cpu (trailer->packet_id)); - return 0; - } -#if 0 - devdbg (dev, "frame <rx h %d p %d id %d", header->hdr_len, - header->packet_len, header->packet_id); -#endif - dev->frame_errors = 0; - return 1; -} - -static struct sk_buff * -net1080_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) -{ - int padlen; - struct sk_buff *skb2; - - padlen = ((skb->len + sizeof (struct nc_header) - + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1; - if (!skb_cloned (skb)) { - int headroom = skb_headroom (skb); - int tailroom = skb_tailroom (skb); - - if ((padlen + sizeof (struct nc_trailer)) <= tailroom - && sizeof (struct nc_header) <= headroom) - /* There's enough head and tail room */ - return skb; - - if ((sizeof (struct nc_header) + padlen - + sizeof (struct nc_trailer)) < - (headroom + tailroom)) { - /* There's enough total room, so just readjust */ - skb->data = memmove (skb->head - + sizeof (struct nc_header), - skb->data, skb->len); - skb->tail = skb->data + skb->len; - return skb; - } - } - - /* Create a new skb to use with the correct size */ - skb2 = skb_copy_expand (skb, - sizeof (struct nc_header), - sizeof (struct nc_trailer) + padlen, - flags); - dev_kfree_skb_any (skb); - return skb2; -} - -static const struct driver_info net1080_info = { - .description = "NetChip TurboCONNECT", - .flags = FLAG_FRAMING_NC, - .reset = net1080_reset, - .check_connect =net1080_check_connect, - .rx_fixup = net1080_rx_fixup, - .tx_fixup = net1080_tx_fixup, -}; - -#endif /* CONFIG_USB_NET1080 */ - - - -#ifdef CONFIG_USB_PL2301 -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com - * - * The protocol and handshaking used here should be bug-compatible - * with the Linux 2.2 "plusb" driver, by Deti Fliegl. - * - *-------------------------------------------------------------------------*/ - -/* - * Bits 0-4 can be used for software handshaking; they're set from - * one end, cleared from the other, "read" with the interrupt byte. - */ -#define PL_S_EN (1<<7) /* (feature only) suspend enable */ -/* reserved bit -- rx ready (6) ? */ -#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */ -#define PL_RESET_OUT (1<<4) /* reset output pipe */ -#define PL_RESET_IN (1<<3) /* reset input pipe */ -#define PL_TX_C (1<<2) /* transmission complete */ -#define PL_TX_REQ (1<<1) /* transmission received */ -#define PL_PEER_E (1<<0) /* peer exists */ - -static inline int -pl_vendor_req (struct usbnet *dev, u8 req, u8 val, u8 index) -{ - return usb_control_msg (dev->udev, - usb_rcvctrlpipe (dev->udev, 0), - req, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - val, index, - NULL, 0, - CONTROL_TIMEOUT_MS); -} - -static inline int -pl_clear_QuickLink_features (struct usbnet *dev, int val) -{ - return pl_vendor_req (dev, 1, (u8) val, 0); -} - -static inline int -pl_set_QuickLink_features (struct usbnet *dev, int val) -{ - return pl_vendor_req (dev, 3, (u8) val, 0); -} - -/*-------------------------------------------------------------------------*/ - -static int pl_reset (struct usbnet *dev) -{ - /* some units seem to need this reset, others reject it utterly. - * FIXME be more like "naplink" or windows drivers. - */ - (void) pl_set_QuickLink_features (dev, - PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E); - return 0; -} - -static const struct driver_info prolific_info = { - .description = "Prolific PL-2301/PL-2302", - .flags = FLAG_NO_SETINT, - /* some PL-2302 versions seem to fail usb_set_interface() */ - .reset = pl_reset, -}; - -#endif /* CONFIG_USB_PL2301 */ - - -#ifdef CONFIG_USB_KC2190 -#define HAVE_HARDWARE -static const struct driver_info kc2190_info = { - .description = "KC Technology KC-190", -}; -#endif /* CONFIG_USB_KC2190 */ - - -#ifdef CONFIG_USB_ARMLINUX -#define HAVE_HARDWARE - -/*------------------------------------------------------------------------- - * - * Intel's SA-1100 chip integrates basic USB support, and is used - * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more. - * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to - * network using minimal USB framing data. - * - * This describes the driver currently in standard ARM Linux kernels. - * The Zaurus uses a different driver (see later). - * - * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support - * and different USB endpoint numbering than the SA1100 devices. The - * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100 - * so we rely on the endpoint descriptors. - * - *-------------------------------------------------------------------------*/ - -static const struct driver_info linuxdev_info = { - .description = "Linux Device", - .check_connect = always_connected, -}; - -static const struct driver_info yopy_info = { - .description = "Yopy", - .check_connect = always_connected, -}; - -static const struct driver_info blob_info = { - .description = "Boot Loader OBject", - .check_connect = always_connected, -}; - -#endif /* CONFIG_USB_ARMLINUX */ - - -#ifdef CONFIG_USB_ZAURUS -#define HAVE_HARDWARE - -#include <linux/crc32.h> - -/*------------------------------------------------------------------------- - * - * Zaurus is also a SA-1110 based PDA, but one using a different driver - * (and framing) for its USB slave/gadget controller than the case above. - * - * For the current version of that driver, the main way that framing is - * nonstandard (also from perspective of the CDC ethernet model!) is a - * crc32, added to help detect when some sa1100 usb-to-memory DMA errata - * haven't been fully worked around. Also, all Zaurii use the same - * default Ethernet address. - * - * PXA based models use the same framing, and also can't implement - * set_interface properly. - * - * All known Zaurii lie about their standards conformance. Most lie by - * saying they support CDC Ethernet. Some lie and say they support CDC - * MDLM (as if for access to cell phone modems). Someone, please beat - * on Sharp (and other such vendors) for a while with a cluestick. - * - *-------------------------------------------------------------------------*/ - -static struct sk_buff * -zaurus_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags) -{ - int padlen; - struct sk_buff *skb2; - - padlen = 2; - if (!skb_cloned (skb)) { - int tailroom = skb_tailroom (skb); - if ((padlen + 4) <= tailroom) - goto done; - } - skb2 = skb_copy_expand (skb, 0, 4 + padlen, flags); - dev_kfree_skb_any (skb); - skb = skb2; - if (skb) { - u32 fcs; -done: - fcs = crc32_le (~0, skb->data, skb->len); - fcs = ~fcs; - - *skb_put (skb, 1) = fcs & 0xff; - *skb_put (skb, 1) = (fcs>> 8) & 0xff; - *skb_put (skb, 1) = (fcs>>16) & 0xff; - *skb_put (skb, 1) = (fcs>>24) & 0xff; - } - return skb; -} - -static const struct driver_info zaurus_sl5x00_info = { - .description = "Sharp Zaurus SL-5x00", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = generic_cdc_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info) - -static const struct driver_info zaurus_pxa_info = { - .description = "Sharp Zaurus, PXA-2xx based", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = generic_cdc_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info) - -static const struct driver_info olympus_mxl_info = { - .description = "Olympus R1000", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = generic_cdc_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info) - - -/* Some more recent products using Lineo/Belcarra code will wrongly claim - * CDC MDLM conformance. They aren't conformant: data endpoints live - * in the control interface, there's no data interface, and it's not used - * to talk to a cell phone radio. But at least we can detect these two - * pseudo-classes, rather than growing this product list with entries for - * each new nonconformant product (sigh). - */ -static const u8 safe_guid[16] = { - 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6, - 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f, -}; -static const u8 blan_guid[16] = { - 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70, - 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37, -}; - -static int blan_mdlm_bind (struct usbnet *dev, struct usb_interface *intf) -{ - u8 *buf = intf->cur_altsetting->extra; - int len = intf->cur_altsetting->extralen; - struct usb_cdc_mdlm_desc *desc = NULL; - struct usb_cdc_mdlm_detail_desc *detail = NULL; - - while (len > 3) { - if (buf [1] != USB_DT_CS_INTERFACE) - goto next_desc; - - /* use bDescriptorSubType, and just verify that we get a - * "BLAN" (or "SAFE") descriptor. - */ - switch (buf [2]) { - case USB_CDC_MDLM_TYPE: - if (desc) { - dev_dbg (&intf->dev, "extra MDLM\n"); - goto bad_desc; - } - desc = (void *) buf; - if (desc->bLength != sizeof *desc) { - dev_dbg (&intf->dev, "MDLM len %u\n", - desc->bLength); - goto bad_desc; - } - /* expect bcdVersion 1.0, ignore */ - if (memcmp(&desc->bGUID, blan_guid, 16) - && memcmp(&desc->bGUID, safe_guid, 16) ) { - /* hey, this one might _really_ be MDLM! */ - dev_dbg (&intf->dev, "MDLM guid\n"); - goto bad_desc; - } - break; - case USB_CDC_MDLM_DETAIL_TYPE: - if (detail) { - dev_dbg (&intf->dev, "extra MDLM detail\n"); - goto bad_desc; - } - detail = (void *) buf; - switch (detail->bGuidDescriptorType) { - case 0: /* "SAFE" */ - if (detail->bLength != (sizeof *detail + 2)) - goto bad_detail; - break; - case 1: /* "BLAN" */ - if (detail->bLength != (sizeof *detail + 3)) - goto bad_detail; - break; - default: - goto bad_detail; - } - - /* assuming we either noticed BLAN already, or will - * find it soon, there are some data bytes here: - * - bmNetworkCapabilities (unused) - * - bmDataCapabilities (bits, see below) - * - bPad (ignored, for PADAFTER -- BLAN-only) - * bits are: - * - 0x01 -- Zaurus framing (add CRC) - * - 0x02 -- PADBEFORE (CRC includes some padding) - * - 0x04 -- PADAFTER (some padding after CRC) - * - 0x08 -- "fermat" packet mangling (for hw bugs) - * the PADBEFORE appears not to matter; we interop - * with devices that use it and those that don't. - */ - if ((detail->bDetailData[1] & ~02) != 0x01) { - /* bmDataCapabilites == 0 would be fine too, - * but framing is minidriver-coupled for now. - */ -bad_detail: - dev_dbg (&intf->dev, - "bad MDLM detail, %d %d %d\n", - detail->bLength, - detail->bDetailData[0], - detail->bDetailData[2]); - goto bad_desc; - } - break; - } -next_desc: - len -= buf [0]; /* bLength */ - buf += buf [0]; - } - - if (!desc || !detail) { - dev_dbg (&intf->dev, "missing cdc mdlm %s%sdescriptor\n", - desc ? "" : "func ", - detail ? "" : "detail "); - goto bad_desc; - } - - /* There's probably a CDC Ethernet descriptor there, but we can't - * rely on the Ethernet address it provides since not all vendors - * bother to make it unique. Likewise there's no point in tracking - * of the CDC event notifications. - */ - return get_endpoints (dev, intf); - -bad_desc: - dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n"); - return -ENODEV; -} - -static const struct driver_info bogus_mdlm_info = { - .description = "pseudo-MDLM (BLAN) device", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .tx_fixup = zaurus_tx_fixup, - .bind = blan_mdlm_bind, -}; - -#else - -/* blacklist all those devices */ -#define ZAURUS_STRONGARM_INFO 0 -#define ZAURUS_PXA_INFO 0 -#define OLYMPUS_MXL_INFO 0 - -#endif +EXPORT_SYMBOL_GPL(usbnet_skb_return); /*------------------------------------------------------------------------- @@ -2868,22 +230,12 @@ static const struct driver_info bogus_mdlm_info = { static int usbnet_change_mtu (struct net_device *net, int new_mtu) { struct usbnet *dev = netdev_priv(net); + int ll_mtu = new_mtu + net->hard_header_len; - if (new_mtu <= MIN_PACKET || new_mtu > MAX_PACKET) + if (new_mtu <= 0 || ll_mtu > dev->hard_mtu) return -EINVAL; -#ifdef CONFIG_USB_NET1080 - if (((dev->driver_info->flags) & FLAG_FRAMING_NC)) { - if (FRAMED_SIZE (new_mtu) > MAX_PACKET) - return -EINVAL; - } -#endif -#ifdef CONFIG_USB_GENESYS - if (((dev->driver_info->flags) & FLAG_FRAMING_GL) - && new_mtu > GL_MAX_PACKET_LEN) - return -EINVAL; -#endif // no second zero-length packet read wanted after mtu-sized packets - if (((new_mtu + sizeof (struct ethhdr)) % dev->maxpacket) == 0) + if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; net->mtu = new_mtu; return 0; @@ -2922,7 +274,7 @@ static void defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_hea * NOTE: annoying asymmetry: if it's active, schedule_work() fails, * but tasklet_schedule() doesn't. hope the failure is rare. */ -static void defer_kevent (struct usbnet *dev, int work) +void usbnet_defer_kevent (struct usbnet *dev, int work) { set_bit (work, &dev->flags); if (!schedule_work (&dev->kevent)) @@ -2930,50 +282,24 @@ static void defer_kevent (struct usbnet *dev, int work) else devdbg (dev, "kevent %d scheduled", work); } +EXPORT_SYMBOL_GPL(usbnet_defer_kevent); /*-------------------------------------------------------------------------*/ static void rx_complete (struct urb *urb, struct pt_regs *regs); -static void rx_submit (struct usbnet *dev, struct urb *urb, int flags) +static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags) { struct sk_buff *skb; struct skb_data *entry; int retval = 0; unsigned long lockflags; - size_t size; - -#ifdef CONFIG_USB_NET1080 - if (dev->driver_info->flags & FLAG_FRAMING_NC) - size = FRAMED_SIZE (dev->net->mtu); - else -#endif -#ifdef CONFIG_USB_GENESYS - if (dev->driver_info->flags & FLAG_FRAMING_GL) - size = GL_RCV_BUF_SIZE; - else -#endif -#ifdef CONFIG_USB_ZAURUS - if (dev->driver_info->flags & FLAG_FRAMING_Z) - size = 6 + (sizeof (struct ethhdr) + dev->net->mtu); - else -#endif -#ifdef CONFIG_USB_RNDIS - if (dev->driver_info->flags & FLAG_FRAMING_RN) - size = RNDIS_MAX_TRANSFER; - else -#endif -#ifdef CONFIG_USB_AX8817X - if (dev->driver_info->flags & FLAG_FRAMING_AX) - size = 2048; - else -#endif - size = (sizeof (struct ethhdr) + dev->net->mtu); + size_t size = dev->rx_urb_size; if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) { if (netif_msg_rx_err (dev)) devdbg (dev, "no rx skb"); - defer_kevent (dev, EVENT_RX_MEMORY); + usbnet_defer_kevent (dev, EVENT_RX_MEMORY); usb_free_urb (urb); return; } @@ -2987,7 +313,6 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, int flags) usb_fill_bulk_urb (urb, dev->udev, dev->in, skb->data, size, rx_complete, skb); - urb->transfer_flags |= URB_ASYNC_UNLINK; spin_lock_irqsave (&dev->rxq.lock, lockflags); @@ -2996,10 +321,10 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, int flags) && !test_bit (EVENT_RX_HALT, &dev->flags)) { switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){ case -EPIPE: - defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent (dev, EVENT_RX_HALT); break; case -ENOMEM: - defer_kevent (dev, EVENT_RX_MEMORY); + usbnet_defer_kevent (dev, EVENT_RX_MEMORY); break; case -ENODEV: if (netif_msg_ifdown (dev)) @@ -3037,7 +362,7 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb) // else network stack removes extra byte if we forced a short packet if (skb->len) - skb_return (dev, skb); + usbnet_skb_return (dev, skb); else { if (netif_msg_rx_err (dev)) devdbg (dev, "drop"); @@ -3063,7 +388,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs) switch (urb_status) { // success case 0: - if (MIN_PACKET > skb->len || skb->len > MAX_PACKET) { + if (skb->len < dev->net->hard_header_len) { entry->state = rx_cleanup; dev->stats.rx_errors++; dev->stats.rx_length_errors++; @@ -3078,7 +403,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs) // storm, recovering as needed. case -EPIPE: dev->stats.rx_errors++; - defer_kevent (dev, EVENT_RX_HALT); + usbnet_defer_kevent (dev, EVENT_RX_HALT); // FALLTHROUGH // software-driven interface shutdown @@ -3320,55 +645,58 @@ done: /*-------------------------------------------------------------------------*/ -static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) +/* ethtool methods; minidrivers may need to add some more, but + * they'll probably want to use this base set. + */ + +void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); + /* REVISIT don't always return "usbnet" */ strncpy (info->driver, driver_name, sizeof info->driver); strncpy (info->version, DRIVER_VERSION, sizeof info->version); strncpy (info->fw_version, dev->driver_info->description, sizeof info->fw_version); usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); } +EXPORT_SYMBOL_GPL(usbnet_get_drvinfo); static u32 usbnet_get_link (struct net_device *net) { struct usbnet *dev = netdev_priv(net); - /* If a check_connect is defined, return it's results */ + /* If a check_connect is defined, return its result */ if (dev->driver_info->check_connect) return dev->driver_info->check_connect (dev) == 0; - /* Otherwise, we're up to avoid breaking scripts */ + /* Otherwise, say we're up (to avoid breaking scripts) */ return 1; } -static u32 usbnet_get_msglevel (struct net_device *net) +u32 usbnet_get_msglevel (struct net_device *net) { struct usbnet *dev = netdev_priv(net); return dev->msg_enable; } +EXPORT_SYMBOL_GPL(usbnet_get_msglevel); -static void usbnet_set_msglevel (struct net_device *net, u32 level) +void usbnet_set_msglevel (struct net_device *net, u32 level) { struct usbnet *dev = netdev_priv(net); dev->msg_enable = level; } +EXPORT_SYMBOL_GPL(usbnet_set_msglevel); -static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd) -{ -#ifdef NEED_MII - { - struct usbnet *dev = netdev_priv(net); - - if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL) - return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); - } -#endif - return -EOPNOTSUPP; -} +/* drivers may override default ethtool_ops in their bind() routine */ +static struct ethtool_ops usbnet_ethtool_ops = { + .get_drvinfo = usbnet_get_drvinfo, + .get_link = usbnet_get_link, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, +}; /*-------------------------------------------------------------------------*/ @@ -3387,19 +715,24 @@ kevent (void *data) if (test_bit (EVENT_TX_HALT, &dev->flags)) { unlink_urbs (dev, &dev->txq); status = usb_clear_halt (dev->udev, dev->out); - if (status < 0 && status != -EPIPE) { + if (status < 0 + && status != -EPIPE + && status != -ESHUTDOWN) { if (netif_msg_tx_err (dev)) deverr (dev, "can't clear tx halt, status %d", status); } else { clear_bit (EVENT_TX_HALT, &dev->flags); - netif_wake_queue (dev->net); + if (status != -ESHUTDOWN) + netif_wake_queue (dev->net); } } if (test_bit (EVENT_RX_HALT, &dev->flags)) { unlink_urbs (dev, &dev->rxq); status = usb_clear_halt (dev->udev, dev->in); - if (status < 0 && status != -EPIPE) { + if (status < 0 + && status != -EPIPE + && status != -ESHUTDOWN) { if (netif_msg_rx_err (dev)) deverr (dev, "can't clear rx halt, status %d", status); @@ -3458,7 +791,7 @@ static void tx_complete (struct urb *urb, struct pt_regs *regs) switch (urb->status) { case -EPIPE: - defer_kevent (dev, EVENT_TX_HALT); + usbnet_defer_kevent (dev, EVENT_TX_HALT); break; /* software-driven interface shutdown */ @@ -3515,10 +848,6 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) struct skb_data *entry; struct driver_info *info = dev->driver_info; unsigned long flags; -#ifdef CONFIG_USB_NET1080 - struct nc_header *header = NULL; - struct nc_trailer *trailer = NULL; -#endif /* CONFIG_USB_NET1080 */ // some devices want funky USB-level framing, for // win32 driver (usually) and/or hardware quirks @@ -3544,24 +873,8 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) entry->state = tx_start; entry->length = length; - // FIXME: reorganize a bit, so that fixup() fills out NetChip - // framing too. (Packet ID update needs the spinlock...) - // [ BETTER: we already own net->xmit_lock, that's enough ] - -#ifdef CONFIG_USB_NET1080 - if (info->flags & FLAG_FRAMING_NC) { - header = (struct nc_header *) skb_push (skb, sizeof *header); - header->hdr_len = cpu_to_le16 (sizeof (*header)); - header->packet_len = cpu_to_le16 (length); - if (!((skb->len + sizeof *trailer) & 0x01)) - *skb_put (skb, 1) = PAD_BYTE; - trailer = (struct nc_trailer *) skb_put (skb, sizeof *trailer); - } -#endif /* CONFIG_USB_NET1080 */ - usb_fill_bulk_urb (urb, dev->udev, dev->out, skb->data, skb->len, tx_complete, skb); - urb->transfer_flags |= URB_ASYNC_UNLINK; /* don't assume the hardware handles USB_ZERO_PACKET * NOTE: strictly conforming cdc-ether devices should expect @@ -3574,22 +887,10 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net) spin_lock_irqsave (&dev->txq.lock, flags); -#ifdef CONFIG_USB_NET1080 - if (info->flags & FLAG_FRAMING_NC) { - header->packet_id = cpu_to_le16 ((u16)dev->dev_packet_id++); - put_unaligned (header->packet_id, &trailer->packet_id); -#if 0 - devdbg (dev, "frame >tx h %d p %d id %d", - header->hdr_len, header->packet_len, - header->packet_id); -#endif - } -#endif /* CONFIG_USB_NET1080 */ - switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { case -EPIPE: netif_stop_queue (net); - defer_kevent (dev, EVENT_TX_HALT); + usbnet_defer_kevent (dev, EVENT_TX_HALT); break; default: if (netif_msg_tx_err (dev)) @@ -3692,7 +993,7 @@ static void usbnet_bh (unsigned long param) // precondition: never called in_interrupt -static void usbnet_disconnect (struct usb_interface *intf) +void usbnet_disconnect (struct usb_interface *intf) { struct usbnet *dev; struct usb_device *xdev; @@ -3706,7 +1007,8 @@ static void usbnet_disconnect (struct usb_interface *intf) xdev = interface_to_usbdev (intf); if (netif_msg_probe (dev)) - devinfo (dev, "unregister usbnet usb-%s-%s, %s", + devinfo (dev, "unregister '%s' usb-%s-%s, %s", + intf->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description); @@ -3722,15 +1024,14 @@ static void usbnet_disconnect (struct usb_interface *intf) free_netdev(net); usb_put_dev (xdev); } +EXPORT_SYMBOL_GPL(usbnet_disconnect); /*-------------------------------------------------------------------------*/ -static struct ethtool_ops usbnet_ethtool_ops; - // precondition: never called in_interrupt -static int +int usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) { struct usbnet *dev; @@ -3779,6 +1080,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) strcpy (net->name, "usb%d"); memcpy (net->dev_addr, node_id, sizeof node_id); + /* rx and tx sides can use different message sizes; + * bind() should set rx_urb_size in that case. + */ + dev->hard_mtu = net->mtu + net->hard_header_len; #if 0 // dma_supported() is deeply broken on almost all architectures // possible with some EHCI controllers @@ -3793,7 +1098,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) net->stop = usbnet_stop; net->watchdog_timeo = TX_TIMEOUT_JIFFIES; net->tx_timeout = usbnet_tx_timeout; - net->do_ioctl = usbnet_ioctl; net->ethtool_ops = &usbnet_ethtool_ops; // allow device-specific bind/init procedures @@ -3806,8 +1110,12 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if ((dev->driver_info->flags & FLAG_ETHER) != 0 && (net->dev_addr [0] & 0x02) == 0) strcpy (net->name, "eth%d"); - } else if (!info->in || info->out) - status = get_endpoints (dev, udev); + + /* maybe the remote can't receive an Ethernet MTU */ + if (net->mtu > (dev->hard_mtu - net->hard_header_len)) + net->mtu = dev->hard_mtu - net->hard_header_len; + } else if (!info->in || !info->out) + status = usbnet_get_endpoints (dev, udev); else { dev->in = usb_rcvbulkpipe (xdev, info->in); dev->out = usb_sndbulkpipe (xdev, info->out); @@ -3819,12 +1127,13 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) status = 0; } - if (status == 0 && dev->status) status = init_status (dev, udev); if (status < 0) goto out1; + if (!dev->rx_urb_size) + dev->rx_urb_size = dev->hard_mtu; dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); SET_NETDEV_DEV(net, &udev->dev); @@ -3832,8 +1141,9 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (status) goto out3; if (netif_msg_probe (dev)) - devinfo (dev, "register usbnet at usb-%s-%s, %s, " + devinfo (dev, "register '%s' at usb-%s-%s, %s, " "%02x:%02x:%02x:%02x:%02x:%02x", + udev->dev.driver->name, xdev->bus->bus_name, xdev->devpath, dev->driver_info->description, net->dev_addr [0], net->dev_addr [1], @@ -3857,12 +1167,15 @@ out: usb_put_dev(xdev); return status; } +EXPORT_SYMBOL_GPL(usbnet_probe); /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_PM +/* FIXME these suspend/resume methods assume non-CDC style + * devices, with only one interface. + */ -static int usbnet_suspend (struct usb_interface *intf, pm_message_t message) +int usbnet_suspend (struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); @@ -3875,8 +1188,9 @@ static int usbnet_suspend (struct usb_interface *intf, pm_message_t message) intf->dev.power.power_state = PMSG_SUSPEND; return 0; } +EXPORT_SYMBOL_GPL(usbnet_suspend); -static int usbnet_resume (struct usb_interface *intf) +int usbnet_resume (struct usb_interface *intf) { struct usbnet *dev = usb_get_intfdata(intf); @@ -3885,357 +1199,27 @@ static int usbnet_resume (struct usb_interface *intf) tasklet_schedule (&dev->bh); return 0; } +EXPORT_SYMBOL_GPL(usbnet_resume); -#else /* !CONFIG_PM */ - -#define usbnet_suspend NULL -#define usbnet_resume NULL - -#endif /* CONFIG_PM */ - -/*-------------------------------------------------------------------------*/ - -#ifndef HAVE_HARDWARE -#error You need to configure some hardware for this driver -#endif - -/* - * chip vendor names won't normally be on the cables, and - * may not be on the device. - */ - -static const struct usb_device_id products [] = { - -#ifdef CONFIG_USB_ALI_M5632 -{ - USB_DEVICE (0x0402, 0x5632), // ALi defaults - .driver_info = (unsigned long) &ali_m5632_info, -}, -#endif - -#ifdef CONFIG_USB_AN2720 -{ - USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults - .driver_info = (unsigned long) &an2720_info, -}, { - USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET - .driver_info = (unsigned long) &an2720_info, -}, -#endif - -#ifdef CONFIG_USB_BELKIN -{ - USB_DEVICE (0x050d, 0x0004), // Belkin - .driver_info = (unsigned long) &belkin_info, -}, { - USB_DEVICE (0x056c, 0x8100), // eTEK - .driver_info = (unsigned long) &belkin_info, -}, { - USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK) - .driver_info = (unsigned long) &belkin_info, -}, -#endif - -#ifdef CONFIG_USB_AX8817X -{ - // Linksys USB200M - USB_DEVICE (0x077b, 0x2226), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Netgear FA120 - USB_DEVICE (0x0846, 0x1040), - .driver_info = (unsigned long) &netgear_fa120_info, -}, { - // DLink DUB-E100 - USB_DEVICE (0x2001, 0x1a00), - .driver_info = (unsigned long) &dlink_dub_e100_info, -}, { - // Intellinet, ST Lab USB Ethernet - USB_DEVICE (0x0b95, 0x1720), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Hawking UF200, TrendNet TU2-ET100 - USB_DEVICE (0x07b8, 0x420a), - .driver_info = (unsigned long) &hawking_uf200_info, -}, { - // Billionton Systems, USB2AR - USB_DEVICE (0x08dd, 0x90ff), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // ATEN UC210T - USB_DEVICE (0x0557, 0x2009), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Buffalo LUA-U2-KTX - USB_DEVICE (0x0411, 0x003d), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" - USB_DEVICE (0x6189, 0x182d), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // corega FEther USB2-TX - USB_DEVICE (0x07aa, 0x0017), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // Surecom EP-1427X-2 - USB_DEVICE (0x1189, 0x0893), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // goodway corp usb gwusb2e - USB_DEVICE (0x1631, 0x6200), - .driver_info = (unsigned long) &ax8817x_info, -}, { - // ASIX AX88772 10/100 - USB_DEVICE (0x0b95, 0x7720), - .driver_info = (unsigned long) &ax88772_info, -}, -#endif - -#ifdef CONFIG_USB_EPSON2888 -{ - USB_DEVICE (0x0525, 0x2888), // EPSON USB client - .driver_info = (unsigned long) &epson2888_info, -}, -#endif - -#ifdef CONFIG_USB_GENESYS -{ - USB_DEVICE (0x05e3, 0x0502), // GL620USB-A - .driver_info = (unsigned long) &genelink_info, -}, - /* NOT: USB_DEVICE (0x05e3, 0x0501), // GL620USB - * that's half duplex, not currently supported - */ -#endif - -#ifdef CONFIG_USB_NET1080 -{ - USB_DEVICE (0x0525, 0x1080), // NetChip ref design - .driver_info = (unsigned long) &net1080_info, -}, { - USB_DEVICE (0x06D0, 0x0622), // Laplink Gold - .driver_info = (unsigned long) &net1080_info, -}, -#endif - -#ifdef CONFIG_USB_PL2301 -{ - USB_DEVICE (0x067b, 0x0000), // PL-2301 - .driver_info = (unsigned long) &prolific_info, -}, { - USB_DEVICE (0x067b, 0x0001), // PL-2302 - .driver_info = (unsigned long) &prolific_info, -}, -#endif - -#ifdef CONFIG_USB_KC2190 -{ - USB_DEVICE (0x050f, 0x0190), // KC-190 - .driver_info = (unsigned long) &kc2190_info, -}, -#endif - -#ifdef CONFIG_USB_RNDIS -{ - /* RNDIS is MSFT's un-official variant of CDC ACM */ - USB_INTERFACE_INFO (USB_CLASS_COMM, 2 /* ACM */, 0x0ff), - .driver_info = (unsigned long) &rndis_info, -}, -#endif - -#ifdef CONFIG_USB_ARMLINUX -/* - * SA-1100 using standard ARM Linux kernels, or compatible. - * Often used when talking to Linux PDAs (iPaq, Yopy, etc). - * The sa-1100 "usb-eth" driver handles the basic framing. - * - * PXA25x or PXA210 ... these use a "usb-eth" driver much like - * the sa1100 one, but hardware uses different endpoint numbers. - * - * Or the Linux "Ethernet" gadget on hardware that can't talk - * CDC Ethernet (e.g., no altsettings), in either of two modes: - * - acting just like the old "usb-eth" firmware, though - * the implementation is different - * - supporting RNDIS as the first/default configuration for - * MS-Windows interop; Linux needs to use the other config - */ -{ - // 1183 = 0x049F, both used as hex values? - // Compaq "Itsy" vendor/product id - USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible - .driver_info = (unsigned long) &linuxdev_info, -}, { - USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy" - .driver_info = (unsigned long) &yopy_info, -}, { - USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader - .driver_info = (unsigned long) &blob_info, -}, { - // Linux Ethernet/RNDIS gadget on pxa210/25x/26x - // e.g. Gumstix, current OpenZaurus, ... - USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203), - .driver_info = (unsigned long) &linuxdev_info, -}, -#endif - -#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER) -/* - * SA-1100 based Sharp Zaurus ("collie"), or compatible. - * Same idea as above, but different framing. - * - * PXA-2xx based models are also lying-about-cdc. - * Some models don't even tell the same lies ... - * - * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries, - * unlike the older ones with 2.4 "embedix" kernels. - * - * NOTE: These entries do double-duty, serving as blacklist entries - * whenever Zaurus support isn't enabled, but CDC Ethernet is. - */ -#define ZAURUS_MASTER_INTERFACE \ - .bInterfaceClass = USB_CLASS_COMM, \ - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ - .bInterfaceProtocol = USB_CDC_PROTO_NONE -{ - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8004, - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_STRONGARM_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8005, /* A-300 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8006, /* B-500/SL-5600 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8007, /* C-700 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x9031, /* C-750 C-760 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x9032, /* SL-6000 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - /* reported with some C860 units */ - .idProduct = 0x9050, /* C-860 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, - -#ifdef CONFIG_USB_ZAURUS - /* At least some (reports vary) PXA units have very different lies - * about their standards support: they claim to be cell phones with - * direct access to their radios. (They don't conform to CDC MDLM.) - */ -{ - USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, - USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &bogus_mdlm_info, -}, -#endif - -/* Olympus has some models with a Zaurus-compatible option. - * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) - */ -{ - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x07B4, - .idProduct = 0x0F02, /* R-1000 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = OLYMPUS_MXL_INFO, -}, -#endif - -#ifdef CONFIG_USB_CDCETHER -{ - /* CDC Ether uses two interfaces, not necessarily consecutive. - * We match the main interface, ignoring the optional device - * class so we could handle devices that aren't exclusively - * CDC ether. - * - * NOTE: this match must come AFTER entries working around - * bugs/quirks in a given product (like Zaurus, above). - */ - USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, - USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &cdc_info, -}, -#endif - - { }, // END -}; -MODULE_DEVICE_TABLE (usb, products); - -static struct usb_driver usbnet_driver = { - .owner = THIS_MODULE, - .name = driver_name, - .id_table = products, - .probe = usbnet_probe, - .disconnect = usbnet_disconnect, - .suspend = usbnet_suspend, - .resume = usbnet_resume, -}; - -/* Default ethtool_ops assigned. Devices can override in their bind() routine */ -static struct ethtool_ops usbnet_ethtool_ops = { - .get_drvinfo = usbnet_get_drvinfo, - .get_link = usbnet_get_link, - .get_msglevel = usbnet_get_msglevel, - .set_msglevel = usbnet_set_msglevel, -}; /*-------------------------------------------------------------------------*/ -static int __init usbnet_init (void) +static int __init usbnet_init(void) { - // compiler should optimize these out + /* compiler should optimize this out */ BUG_ON (sizeof (((struct sk_buff *)0)->cb) < sizeof (struct skb_data)); -#ifdef CONFIG_USB_CDCETHER - BUG_ON ((sizeof (((struct usbnet *)0)->data) - < sizeof (struct cdc_state))); -#endif random_ether_addr(node_id); - - return usb_register(&usbnet_driver); + return 0; } -module_init (usbnet_init); +module_init(usbnet_init); -static void __exit usbnet_exit (void) +static void __exit usbnet_exit(void) { - usb_deregister (&usbnet_driver); } -module_exit (usbnet_exit); +module_exit(usbnet_exit); -MODULE_AUTHOR ("David Brownell <dbrownell@users.sourceforge.net>"); -MODULE_DESCRIPTION ("USB Host-to-Host Link Drivers (numerous vendors)"); -MODULE_LICENSE ("GPL"); +MODULE_AUTHOR("David Brownell"); +MODULE_DESCRIPTION("USB network driver framework"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/usbnet.h b/drivers/usb/net/usbnet.h new file mode 100644 index 00000000000..7aa0abd1a9b --- /dev/null +++ b/drivers/usb/net/usbnet.h @@ -0,0 +1,193 @@ +/* + * USB Networking Link Interface + * + * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net> + * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#ifndef __USBNET_H +#define __USBNET_H + + +/* interface from usbnet core to each USB networking link we handle */ +struct usbnet { + /* housekeeping */ + struct usb_device *udev; + struct driver_info *driver_info; + wait_queue_head_t *wait; + + /* i/o info: pipes etc */ + unsigned in, out; + struct usb_host_endpoint *status; + unsigned maxpacket; + struct timer_list delay; + + /* protocol/interface state */ + struct net_device *net; + struct net_device_stats stats; + int msg_enable; + unsigned long data [5]; + u32 xid; + u32 hard_mtu; /* count any extra framing */ + size_t rx_urb_size; /* size for rx urbs */ + struct mii_if_info mii; + + /* various kinds of pending driver work */ + struct sk_buff_head rxq; + struct sk_buff_head txq; + struct sk_buff_head done; + struct urb *interrupt; + struct tasklet_struct bh; + + struct work_struct kevent; + unsigned long flags; +# define EVENT_TX_HALT 0 +# define EVENT_RX_HALT 1 +# define EVENT_RX_MEMORY 2 +# define EVENT_STS_SPLIT 3 +# define EVENT_LINK_RESET 4 +}; + +static inline struct usb_driver *driver_of(struct usb_interface *intf) +{ + return to_usb_driver(intf->dev.driver); +} + +/* interface from the device/framing level "minidriver" to core */ +struct driver_info { + char *description; + + int flags; +/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */ +#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */ +#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */ +#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */ +#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */ + +#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */ +#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */ + +#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */ + + /* init device ... can sleep, or cause probe() failure */ + int (*bind)(struct usbnet *, struct usb_interface *); + + /* cleanup device ... can sleep, but can't fail */ + void (*unbind)(struct usbnet *, struct usb_interface *); + + /* reset device ... can sleep */ + int (*reset)(struct usbnet *); + + /* see if peer is connected ... can sleep */ + int (*check_connect)(struct usbnet *); + + /* for status polling */ + void (*status)(struct usbnet *, struct urb *); + + /* link reset handling, called from defer_kevent */ + int (*link_reset)(struct usbnet *); + + /* fixup rx packet (strip framing) */ + int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb); + + /* fixup tx packet (add framing) */ + struct sk_buff *(*tx_fixup)(struct usbnet *dev, + struct sk_buff *skb, unsigned flags); + + /* for new devices, use the descriptor-reading code instead */ + int in; /* rx endpoint */ + int out; /* tx endpoint */ + + unsigned long data; /* Misc driver specific data */ +}; + +/* Minidrivers are just drivers using the "usbnet" core as a powerful + * network-specific subroutine library ... that happens to do pretty + * much everything except custom framing and chip-specific stuff. + */ +extern int usbnet_probe(struct usb_interface *, const struct usb_device_id *); +extern int usbnet_suspend (struct usb_interface *, pm_message_t ); +extern int usbnet_resume (struct usb_interface *); +extern void usbnet_disconnect(struct usb_interface *); + + +/* Drivers that reuse some of the standard USB CDC infrastructure + * (notably, using multiple interfaces according to the the CDC + * union descriptor) get some helper code. + */ +struct cdc_state { + struct usb_cdc_header_desc *header; + struct usb_cdc_union_desc *u; + struct usb_cdc_ether_desc *ether; + struct usb_interface *control; + struct usb_interface *data; +}; + +extern int usbnet_generic_cdc_bind (struct usbnet *, struct usb_interface *); +extern void usbnet_cdc_unbind (struct usbnet *, struct usb_interface *); + +/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */ +#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \ + |USB_CDC_PACKET_TYPE_ALL_MULTICAST \ + |USB_CDC_PACKET_TYPE_PROMISCUOUS \ + |USB_CDC_PACKET_TYPE_DIRECTED) + + +/* we record the state for each of our queued skbs */ +enum skb_state { + illegal = 0, + tx_start, tx_done, + rx_start, rx_done, rx_cleanup +}; + +struct skb_data { /* skb->cb is one of these */ + struct urb *urb; + struct usbnet *dev; + enum skb_state state; + size_t length; +}; + + +extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *); +extern void usbnet_defer_kevent (struct usbnet *, int); +extern void usbnet_skb_return (struct usbnet *, struct sk_buff *); + +extern u32 usbnet_get_msglevel (struct net_device *); +extern void usbnet_set_msglevel (struct net_device *, u32); +extern void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *); + +/* messaging support includes the interface name, so it must not be + * used before it has one ... notably, in minidriver bind() calls. + */ +#ifdef DEBUG +#define devdbg(usbnet, fmt, arg...) \ + printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg) +#else +#define devdbg(usbnet, fmt, arg...) do {} while(0) +#endif + +#define deverr(usbnet, fmt, arg...) \ + printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg) +#define devwarn(usbnet, fmt, arg...) \ + printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg) + +#define devinfo(usbnet, fmt, arg...) \ + printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \ + + +#endif /* __USBNET_H */ diff --git a/drivers/usb/net/zaurus.c b/drivers/usb/net/zaurus.c new file mode 100644 index 00000000000..ee3b892aeab --- /dev/null +++ b/drivers/usb/net/zaurus.c @@ -0,0 +1,386 @@ +/* + * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> + * Copyright (C) 2002-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/crc32.h> +#include <linux/usb.h> +#include <linux/usb_cdc.h> + +#include "usbnet.h" + + +/* + * All known Zaurii lie about their standards conformance. At least + * the earliest SA-1100 models lie by saying they support CDC Ethernet. + * Some later models (especially PXA-25x and PXA-27x based ones) lie + * and say they support CDC MDLM (for access to cell phone modems). + * + * There are non-Zaurus products that use these same protocols too. + * + * The annoying thing is that at the same time Sharp was developing + * that annoying standards-breaking software, the Linux community had + * a simple "CDC Subset" working reliably on the same SA-1100 hardware. + * That is, the same functionality but not violating standards. + * + * The CDC Ethernet nonconformance points are troublesome to hosts + * with a true CDC Ethernet implementation: + * - Framing appends a CRC, which the spec says drivers "must not" do; + * - Transfers data in altsetting zero, instead of altsetting 1; + * - All these peripherals use the same ethernet address. + * + * The CDC MDLM nonconformance is less immediately troublesome, since all + * MDLM implementations are quasi-proprietary anyway. + */ + +static struct sk_buff * +zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, unsigned flags) +{ + int padlen; + struct sk_buff *skb2; + + padlen = 2; + if (!skb_cloned(skb)) { + int tailroom = skb_tailroom(skb); + if ((padlen + 4) <= tailroom) + goto done; + } + skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (skb) { + u32 fcs; +done: + fcs = crc32_le(~0, skb->data, skb->len); + fcs = ~fcs; + + *skb_put (skb, 1) = fcs & 0xff; + *skb_put (skb, 1) = (fcs>> 8) & 0xff; + *skb_put (skb, 1) = (fcs>>16) & 0xff; + *skb_put (skb, 1) = (fcs>>24) & 0xff; + } + return skb; +} + +static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf) +{ + /* Belcarra's funky framing has other options; mostly + * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes. + */ + dev->net->hard_header_len += 6; + dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu; + return usbnet_generic_cdc_bind(dev, intf); +} + +/* PDA style devices are always connected if present */ +static int always_connected (struct usbnet *dev) +{ + return 0; +} + +static const struct driver_info zaurus_sl5x00_info = { + .description = "Sharp Zaurus SL-5x00", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info) + +static const struct driver_info zaurus_pxa_info = { + .description = "Sharp Zaurus, PXA-2xx based", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info) + +static const struct driver_info olympus_mxl_info = { + .description = "Olympus R1000", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info) + + +/* Some more recent products using Lineo/Belcarra code will wrongly claim + * CDC MDLM conformance. They aren't conformant: data endpoints live + * in the control interface, there's no data interface, and it's not used + * to talk to a cell phone radio. But at least we can detect these two + * pseudo-classes, rather than growing this product list with entries for + * each new nonconformant product (sigh). + */ +static const u8 safe_guid[16] = { + 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6, + 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f, +}; +static const u8 blan_guid[16] = { + 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70, + 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37, +}; + +static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf) +{ + u8 *buf = intf->cur_altsetting->extra; + int len = intf->cur_altsetting->extralen; + struct usb_cdc_mdlm_desc *desc = NULL; + struct usb_cdc_mdlm_detail_desc *detail = NULL; + + while (len > 3) { + if (buf [1] != USB_DT_CS_INTERFACE) + goto next_desc; + + /* use bDescriptorSubType, and just verify that we get a + * "BLAN" (or "SAFE") descriptor. + */ + switch (buf [2]) { + case USB_CDC_MDLM_TYPE: + if (desc) { + dev_dbg(&intf->dev, "extra MDLM\n"); + goto bad_desc; + } + desc = (void *) buf; + if (desc->bLength != sizeof *desc) { + dev_dbg(&intf->dev, "MDLM len %u\n", + desc->bLength); + goto bad_desc; + } + /* expect bcdVersion 1.0, ignore */ + if (memcmp(&desc->bGUID, blan_guid, 16) + && memcmp(&desc->bGUID, safe_guid, 16) ) { + /* hey, this one might _really_ be MDLM! */ + dev_dbg(&intf->dev, "MDLM guid\n"); + goto bad_desc; + } + break; + case USB_CDC_MDLM_DETAIL_TYPE: + if (detail) { + dev_dbg(&intf->dev, "extra MDLM detail\n"); + goto bad_desc; + } + detail = (void *) buf; + switch (detail->bGuidDescriptorType) { + case 0: /* "SAFE" */ + if (detail->bLength != (sizeof *detail + 2)) + goto bad_detail; + break; + case 1: /* "BLAN" */ + if (detail->bLength != (sizeof *detail + 3)) + goto bad_detail; + break; + default: + goto bad_detail; + } + + /* assuming we either noticed BLAN already, or will + * find it soon, there are some data bytes here: + * - bmNetworkCapabilities (unused) + * - bmDataCapabilities (bits, see below) + * - bPad (ignored, for PADAFTER -- BLAN-only) + * bits are: + * - 0x01 -- Zaurus framing (add CRC) + * - 0x02 -- PADBEFORE (CRC includes some padding) + * - 0x04 -- PADAFTER (some padding after CRC) + * - 0x08 -- "fermat" packet mangling (for hw bugs) + * the PADBEFORE appears not to matter; we interop + * with devices that use it and those that don't. + */ + if ((detail->bDetailData[1] & ~0x02) != 0x01) { + /* bmDataCapabilites == 0 would be fine too, + * but framing is minidriver-coupled for now. + */ +bad_detail: + dev_dbg(&intf->dev, + "bad MDLM detail, %d %d %d\n", + detail->bLength, + detail->bDetailData[0], + detail->bDetailData[2]); + goto bad_desc; + } + break; + } +next_desc: + len -= buf [0]; /* bLength */ + buf += buf [0]; + } + + if (!desc || !detail) { + dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n", + desc ? "" : "func ", + detail ? "" : "detail "); + goto bad_desc; + } + + /* There's probably a CDC Ethernet descriptor there, but we can't + * rely on the Ethernet address it provides since not all vendors + * bother to make it unique. Likewise there's no point in tracking + * of the CDC event notifications. + */ + return usbnet_get_endpoints(dev, intf); + +bad_desc: + dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n"); + return -ENODEV; +} + +static const struct driver_info bogus_mdlm_info = { + .description = "pseudo-MDLM (BLAN) device", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .tx_fixup = zaurus_tx_fixup, + .bind = blan_mdlm_bind, +}; + +static const struct usb_device_id products [] = { +#define ZAURUS_MASTER_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE + +/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8004, + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_STRONGARM_INFO, +}, + +/* PXA-2xx based models are also lying-about-cdc. If you add any + * more devices that claim to be CDC Ethernet, make sure they get + * added to the blacklist in cdc_ether too. + * + * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries, + * unlike the older ones with 2.4 "embedix" kernels. + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9031, /* C-750 C-760 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + /* reported with some C860 units */ + .idProduct = 0x9050, /* C-860 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, + + +/* At least some of the newest PXA units have very different lies about + * their standards support: they claim to be cell phones offering + * direct access to their radios! (No, they don't conform to CDC MDLM.) + */ +{ + USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &bogus_mdlm_info, +}, + +/* Olympus has some models with a Zaurus-compatible option. + * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x07B4, + .idProduct = 0x0F02, /* R-1000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = OLYMPUS_MXL_INFO, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver zaurus_driver = { + .owner = THIS_MODULE, + .name = "zaurus", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init zaurus_init(void) +{ + return usb_register(&zaurus_driver); +} +module_init(zaurus_init); + +static void __exit zaurus_exit(void) +{ + usb_deregister(&zaurus_driver); +} +module_exit(zaurus_exit); + +MODULE_AUTHOR("Pavel Machek, David Brownell"); +MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/net/zd1201.c b/drivers/usb/net/zd1201.c index fc013978837..c4e479ee926 100644 --- a/drivers/usb/net/zd1201.c +++ b/drivers/usb/net/zd1201.c @@ -847,7 +847,6 @@ static void zd1201_tx_timeout(struct net_device *dev) return; dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n", dev->name); - zd->tx_urb->transfer_flags |= URB_ASYNC_UNLINK; usb_unlink_urb(zd->tx_urb); zd->stats.tx_errors++; /* Restart the timeout to quiet the watchdog: */ |