diff options
| author | Kalle Valo <kalle.valo@iki.fi> | 2009-02-07 09:27:10 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-02-27 14:52:44 -0500 |
| commit | 1264b951463a00efebe1bb596499aaad620ec8af (patch) | |
| tree | df45bdbef79fe10104144f817e17407e55fe423b | |
| parent | 41d2f291d78fb90ec26122c1c67d0c151965b378 (diff) | |
at76c50x-usb: add driver
This is a driver for usb devices based on at76c50x chipset. This is
a mac80211 port of the original at76_usb driver.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/at76c50x-usb.c | 2465 | ||||
| -rw-r--r-- | drivers/net/wireless/at76c50x-usb.h | 463 |
4 files changed, 2938 insertions, 0 deletions
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index fe819a78571..1294175cab2 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -228,6 +228,14 @@ config PCMCIA_ATMEL Enable support for PCMCIA cards containing the Atmel at76c502 and at76c504 chips. +config AT76C50X_USB + tristate "Atmel at76c503/at76c505/at76c505a USB cards" + depends on MAC80211 && WLAN_80211 && USB + select FW_LOADER + ---help--- + Enable support for USB Wireless devices using Atmel at76c503, + at76c505 or at76c505a chips. + config AIRO_CS tristate "Cisco/Aironet 34X/35X/4500/4800 PCMCIA cards" depends on PCMCIA && (BROKEN || !M32R) && WLAN_80211 diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index ac590e1ca8b..e2574cafe05 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -24,6 +24,8 @@ obj-$(CONFIG_ATMEL) += atmel.o obj-$(CONFIG_PCI_ATMEL) += atmel_pci.o obj-$(CONFIG_PCMCIA_ATMEL) += atmel_cs.o +obj-$(CONFIG_AT76C50X_USB) += at76c50x-usb.o + obj-$(CONFIG_PRISM54) += prism54/ obj-$(CONFIG_HOSTAP) += hostap/ diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c new file mode 100644 index 00000000000..e8868aef02b --- /dev/null +++ b/drivers/net/wireless/at76c50x-usb.c @@ -0,0 +1,2465 @@ +/* + * at76c503/at76c505 USB driver + * + * Copyright (c) 2002 - 2003 Oliver Kurth + * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de> + * Copyright (c) 2004 Nick Jones + * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com> + * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org> + * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi> + * + * 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 file is part of the Berlios driver for WLAN USB devices based on the + * Atmel AT76C503A/505/505A. + * + * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed + * + * TODO for the mac80211 port: + * o adhoc support + * o RTS/CTS support + * o Power Save Mode support + * o support for short/long preambles + * o export variables through debugfs/sysfs + * o remove hex2str + * o remove mac2str + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/spinlock.h> +#include <linux/list.h> +#include <linux/usb.h> +#include <linux/netdevice.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/wireless.h> +#include <net/iw_handler.h> +#include <net/ieee80211_radiotap.h> +#include <linux/firmware.h> +#include <linux/leds.h> +#include <net/mac80211.h> + +#include "at76c50x-usb.h" + +/* Version information */ +#define DRIVER_NAME "at76c50x-usb" +#define DRIVER_VERSION "0.17" +#define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" + +/* at76_debug bits */ +#define DBG_PROGRESS 0x00000001 /* authentication/accociation */ +#define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ +#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ +#define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ +#define DBG_TX_DATA 0x00000010 /* tx header */ +#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ +#define DBG_TX_MGMT 0x00000040 /* tx management */ +#define DBG_RX_DATA 0x00000080 /* rx data header */ +#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ +#define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ +#define DBG_RX_BEACON 0x00000400 /* rx beacon */ +#define DBG_RX_CTRL 0x00000800 /* rx control */ +#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ +#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ +#define DBG_DEVSTART 0x00004000 /* fw download, device start */ +#define DBG_URB 0x00008000 /* rx urb status, ... */ +#define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ +#define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ +#define DBG_PM 0x00040000 /* power management settings */ +#define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ +#define DBG_PARAMS 0x00100000 /* show configured parameters */ +#define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ +#define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ +#define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ +#define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ +#define DBG_MIB 0x02000000 /* dump all MIBs on startup */ +#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ +#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ +#define DBG_FW 0x10000000 /* firmware download */ +#define DBG_DFU 0x20000000 /* device firmware upgrade */ +#define DBG_CMD 0x40000000 +#define DBG_MAC80211 0x80000000 + +#define DBG_DEFAULTS 0 + +/* Use our own dbg macro */ +#define at76_dbg(bits, format, arg...) \ + do { \ + if (at76_debug & (bits)) \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + } while (0) + +#define at76_dbg_dump(bits, buf, len, format, arg...) \ + do { \ + if (at76_debug & (bits)) { \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \ + buf, len); \ + } \ + } while (0) + +static int at76_debug = DBG_DEFAULTS; + +/* Protect against concurrent firmware loading and parsing */ +static struct mutex fw_mutex; + +static struct fwentry firmwares[] = { + [0] = { "" }, + [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, + [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, + [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, + [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, + [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, + [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, + [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, + [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, +}; + +#define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) + +static struct usb_device_id dev_table[] = { + /* + * at76c503-i3861 + */ + /* Generic AT76C503/3861 device */ + { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Linksys WUSB11 v2.1/v2.6 */ + { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Netgear MA101 rev. A */ + { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Tekram U300C / Allnet ALL0193 */ + { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* HP HN210W J7801A */ + { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Sitecom/Z-Com/Zyxel M4Y-750 */ + { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink/Askey WLL013 (intersil) */ + { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ + { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BenQ AWL300 */ + { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Addtron AWU-120, Compex WLU11 */ + { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Intel AP310 AnyPoint II USB */ + { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink L11U */ + { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Arescom WL-210, FCC id 07J-GL2411USB */ + { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* I-O DATA WN-B11/USB */ + { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BT Voyager 1010 */ + { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* + * at76c503-i3863 + */ + /* Generic AT76C503/3863 device */ + { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* Samsung SWL-2100U */ + { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* + * at76c503-rfmd + */ + /* Generic AT76C503/RFMD device */ + { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* Dynalink/Askey WLL013 (rfmd) */ + { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, + /* Linksys WUSB11 v2.6 */ + { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, + /* Network Everywhere NWU11B */ + { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, + /* Netgear MA101 rev. B */ + { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* D-Link DWL-120 rev. E */ + { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, + /* Actiontec 802UAT1, HWU01150-01UK */ + { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* AirVast W-Buddie WN210 */ + { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* Dick Smith Electronics XH1153 802.11b USB adapter */ + { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, + /* CNet CNUSB611 */ + { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, + /* FiberLine FL-WL200U */ + { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, + /* BenQ AWL400 USB stick */ + { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, + /* 3Com 3CRSHEW696 */ + { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, + /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ + { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, + /* Belkin F5D6050, version 2 */ + { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, + /* iBlitzz, BWU613 (not *B or *SB) */ + { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, + /* Gigabyte GN-WLBM101 */ + { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, + /* Planex GW-US11S */ + { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, + /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ + { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini */ + { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini2 */ + { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, + /* Uniden PCW100 */ + { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, + /* + * at76c503-rfmd-acc + */ + /* SMC2664W */ + { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ + { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* + * at76c505-rfmd + */ + /* Generic AT76C505/RFMD */ + { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, + /* + * at76c505-rfmd2958 + */ + /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ + { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Fiberline FL-WL240U */ + { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, + /* CNet CNUSB-611G */ + { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Linksys WUSB11 v2.8 */ + { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ + { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Corega WLAN USB Stick 11 */ + { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Microstar MSI Box MS6978 */ + { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, + /* + * at76c505a-rfmd2958 + */ + /* Generic AT76C505A device */ + { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, + /* Generic AT76C505AS device */ + { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, + /* Siemens Gigaset USB WLAN Adapter 11 */ + { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, + /* + * at76c505amx-rfmd + */ + /* Generic AT76C505AMX device */ + { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, + { } +}; + +MODULE_DEVICE_TABLE(usb, dev_table); + +/* Supported rates of this hardware, bit 7 marks basic rates */ +static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; + +static const char *const preambles[] = { "long", "short", "auto" }; + +/* Firmware download */ +/* DFU states */ +#define STATE_IDLE 0x00 +#define STATE_DETACH 0x01 +#define STATE_DFU_IDLE 0x02 +#define STATE_DFU_DOWNLOAD_SYNC 0x03 +#define STATE_DFU_DOWNLOAD_BUSY 0x04 +#define STATE_DFU_DOWNLOAD_IDLE 0x05 +#define STATE_DFU_MANIFEST_SYNC 0x06 +#define STATE_DFU_MANIFEST 0x07 +#define STATE_DFU_MANIFEST_WAIT_RESET 0x08 +#define STATE_DFU_UPLOAD_IDLE 0x09 +#define STATE_DFU_ERROR 0x0a + +/* DFU commands */ +#define DFU_DETACH 0 +#define DFU_DNLOAD 1 +#define DFU_UPLOAD 2 +#define DFU_GETSTATUS 3 +#define DFU_CLRSTATUS 4 +#define DFU_GETSTATE 5 +#define DFU_ABORT 6 + +#define FW_BLOCK_SIZE 1024 + +struct dfu_status { + unsigned char status; + unsigned char poll_timeout[3]; + unsigned char state; + unsigned char string; +} __attribute__((packed)); + +static inline int at76_is_intersil(enum board_type board) +{ + return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); +} + +static inline int at76_is_503rfmd(enum board_type board) +{ + return (board == BOARD_503 || board == BOARD_503_ACC); +} + +static inline int at76_is_505a(enum board_type board) +{ + return (board == BOARD_505A || board == BOARD_505AMX); +} + +/* Load a block of the first (internal) part of the firmware */ +static int at76_load_int_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, + USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE, blockno, 0, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static int at76_dfu_get_status(struct usb_device *udev, + struct dfu_status *status) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, status, sizeof(struct dfu_status), + USB_CTRL_GET_TIMEOUT); + return ret; +} + +static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); + return ret; +} + +/* Convert timeout from the DFU status to jiffies */ +static inline unsigned long at76_get_timeout(struct dfu_status *s) +{ + return msecs_to_jiffies((s->poll_timeout[2] << 16) + | (s->poll_timeout[1] << 8) + | (s->poll_timeout[0])); +} + +/* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use + * its value in jiffies in the MANIFEST_SYNC state. */ +static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, + int manifest_sync_timeout) +{ + u8 *block; + struct dfu_status dfu_stat_buf; + int ret = 0; + int need_dfu_state = 1; + int is_done = 0; + u8 dfu_state = 0; + u32 dfu_timeout = 0; + int bsize = 0; + int blockno = 0; + + at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, + manifest_sync_timeout); + + if (!size) { + dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); + return -EINVAL; + } + + block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return -ENOMEM; + + do { + if (need_dfu_state) { + ret = at76_dfu_get_state(udev, &dfu_state); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "cannot get DFU state: %d\n", ret); + goto exit; + } + need_dfu_state = 0; + } + + switch (dfu_state) { + case STATE_DFU_DOWNLOAD_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret >= 0) { + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + } else + dev_printk(KERN_ERR, &udev->dev, + "at76_dfu_get_status returned %d\n", + ret); + break; + + case STATE_DFU_DOWNLOAD_BUSY: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); + need_dfu_state = 1; + + at76_dbg(DBG_DFU, "DFU: Resetting device"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_DOWNLOAD_IDLE: + at76_dbg(DBG_DFU, "DOWNLOAD..."); + /* fall through */ + case STATE_DFU_IDLE: + at76_dbg(DBG_DFU, "DFU IDLE"); + + bsize = min_t(int, size, FW_BLOCK_SIZE); + memcpy(block, buf, bsize); + at76_dbg(DBG_DFU, "int fw, size left = %5d, " + "bsize = %4d, blockno = %2d", size, bsize, + blockno); + ret = + at76_load_int_fw_block(udev, blockno, block, bsize); + buf += bsize; + size -= bsize; + blockno++; + + if (ret != bsize) + dev_printk(KERN_ERR, &udev->dev, + "at76_load_int_fw_block " + "returned %d\n", ret); + need_dfu_state = 1; + break; + + case STATE_DFU_MANIFEST_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); + + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret < 0) + break; + + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + + /* override the timeout from the status response, + needed for AT76C505A */ + if (manifest_sync_timeout > 0) + dfu_timeout = manifest_sync_timeout; + + at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_MANIFEST: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); + is_done = 1; + break; + + case STATE_DFU_MANIFEST_WAIT_RESET: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); + is_done = 1; + break; + + case STATE_DFU_UPLOAD_IDLE: + at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); + break; + + case STATE_DFU_ERROR: + at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); + ret = -EPIPE; + break; + + default: + at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); + ret = -EINVAL; + break; + } + } while (!is_done && (ret >= 0)); + +exit: + kfree(block); + if (ret >= 0) + ret = 0; + + return ret; +} + +#define HEX2STR_BUFFERS 4 +#define HEX2STR_MAX_LEN 64 +#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) + +/* Convert binary data into hex string */ +static char *hex2str(void *buf, int len) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; + char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; + char *obuf = ret; + u8 *ibuf = buf; + + if (len > HEX2STR_MAX_LEN) + len = HEX2STR_MAX_LEN; + + if (len <= 0) { + ret[0] = '\0'; + return ret; + } + + while (len--) { + *obuf++ = BIN2HEX(*ibuf >> 4); + *obuf++ = BIN2HEX(*ibuf & 0xf); + *obuf++ = '-'; + ibuf++; + } + *(--obuf) = '\0'; + + return ret; +} + +#define MAC2STR_BUFFERS 4 + +static inline char *mac2str(u8 *mac) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[MAC2STR_BUFFERS][6 * 3]; + char *str; + + str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; + sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + return str; +} + +/* LED trigger */ +static int tx_activity; +static void at76_ledtrig_tx_timerfunc(unsigned long data); +static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); +DEFINE_LED_TRIGGER(ledtrig_tx); + +static void at76_ledtrig_tx_timerfunc(unsigned long data) +{ + static int tx_lastactivity; + + if (tx_lastactivity != tx_activity) { + tx_lastactivity = tx_activity; + led_trigger_event(ledtrig_tx, LED_FULL); + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); + } else + led_trigger_event(ledtrig_tx, LED_OFF); +} + +static void at76_ledtrig_tx_activity(void) +{ + tx_activity++; + if (!timer_pending(&ledtrig_tx_timer)) + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); +} + +static int at76_remap(struct usb_device *udev) +{ + int ret; + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, + USB_TYPE_VENDOR | USB_DIR_OUT | + USB_RECIP_INTERFACE, 0, 0, NULL, 0, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + return 0; +} + +static int at76_get_op_mode(struct usb_device *udev) +{ + int ret; + u8 op_mode; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x01, 0, &op_mode, 1, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + else if (ret < 1) + return -EIO; + else + return op_mode; +} + +/* Load a block of the second ("external") part of the firmware */ +static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0x0802, blockno, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static inline int at76_get_hw_cfg(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0a02, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Intersil boards use a different "value" for GetHWConfig requests */ +static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0902, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Get the hardware configuration for the adapter and put it to the appropriate + * fields of 'priv' (the GetHWConfig request and interpretation of the result + * depends on the board type) */ +static int at76_get_hw_config(struct at76_priv *priv) +{ + int ret; + union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); + + if (!hwcfg) + return -ENOMEM; + + if (at76_is_intersil(priv->board_type)) { + ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, + sizeof(hwcfg->i)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->i.regulatory_domain; + } else if (at76_is_503rfmd(priv->board_type)) { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r3.regulatory_domain; + } else { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r5.regulatory_domain; + } + +exit: + kfree(hwcfg); + if (ret < 0) + printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static struct reg_domain const *at76_get_reg_domain(u16 code) +{ + int i; + static struct reg_domain const fd_tab[] = { + { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ + { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ + { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ + { 0x31, "Spain", 0x600 }, /* ch 10-11 */ + { 0x32, "France", 0x1e00 }, /* ch 10-13 */ + { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ + { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ + { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ + { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ + }; + + /* Last entry is fallback for unknown domain code */ + for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) + if (code == fd_tab[i].code) + break; + + return &fd_tab[i]; +} + +static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, + int buf_size) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, + USB_CTRL_GET_TIMEOUT); + if (ret >= 0 && ret != buf_size) + return -EIO; + return ret; +} + +/* Return positive number for status, negative for an error */ +static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) +{ + u8 stat_buf[40]; + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, cmd, 0, stat_buf, + sizeof(stat_buf), USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + + return stat_buf[5]; +} + +#define MAKE_CMD_CASE(c) case (c): return #c + +static const char *at76_get_cmd_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_CASE(CMD_SET_MIB); + MAKE_CMD_CASE(CMD_GET_MIB); + MAKE_CMD_CASE(CMD_SCAN); + MAKE_CMD_CASE(CMD_JOIN); + MAKE_CMD_CASE(CMD_START_IBSS); + MAKE_CMD_CASE(CMD_RADIO_ON); + MAKE_CMD_CASE(CMD_RADIO_OFF); + MAKE_CMD_CASE(CMD_STARTUP); + } + + return "UNKNOWN"; +} + +static int at76_set_card_command(struct usb_device *udev, int cmd, void *buf, + int buf_size) +{ + int ret; + struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + + buf_size, GFP_KERNEL); + + if (!cmd_buf) + return -ENOMEM; + + cmd_buf->cmd = cmd; + cmd_buf->reserved = 0; + cmd_buf->size = cpu_to_le16(buf_size); + memcpy(cmd_buf->data, buf, buf_size); + + at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, + "issuing command %s (0x%02x)", + at76_get_cmd_string(cmd), cmd); + + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0, 0, cmd_buf, + sizeof(struct at76_command) + buf_size, + USB_CTRL_GET_TIMEOUT); + kfree(cmd_buf); + return ret; +} + +#define MAKE_CMD_STATUS_CASE(c) case (c): return #c +static const char *at76_get_cmd_status_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); + MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); + MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); + MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); + MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); + MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); + } + + return "UNKNOWN"; +} + +/* Wait until the command is completed */ +static int at76_wait_completion(struct at76_priv *priv, int cmd) +{ + int status = 0; + unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; + + do { + status = at76_get_cmd_status(priv->udev, cmd); + if (status < 0) { + printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", + wiphy_name(priv->hw->wiphy), status); + break; + } + + at76_dbg(DBG_WAIT_COMPLETE, + "%s: Waiting on cmd %d, status = %d (%s)", + wiphy_name(priv->hw->wiphy), cmd, status, + at76_get_cmd_status_string(status)); + + if (status != CMD_STATUS_IN_PROGRESS + && status != CMD_STATUS_IDLE) + break; + + schedule_timeout_interruptible(HZ / 10); /* 100 ms */ + if (time_after(jiffies, timeout)) { + printk(KERN_ERR + "%s: completion timeout for command %d\n", + wiphy_name(priv->hw->wiphy), cmd); + status = -ETIMEDOUT; + break; + } + } while (1); + + return status; +} + +static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) +{ + int ret; + + ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, + offsetof(struct set_mib_buffer, + data) + buf->size); + if (ret < 0) + return ret; + + ret = at76_wait_completion(priv, CMD_SET_MIB); + if (ret != CMD_STATUS_COMPLETE) { + printk(KERN_INFO + "%s: set_mib: at76_wait_completion failed " + "with %d\n", wiphy_name(priv->hw->wiphy), ret); + ret = -EIO; + } + + return ret; +} + +/* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ +static int at76_set_radio(struct at76_priv *priv, int enable) +{ + int ret; + int cmd; + + if (priv->radio_on == enable) + return 0; + + cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; + + ret = at76_set_card_command(priv->udev, cmd, NULL, 0); + if (ret < 0) + printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", + wiphy_name(priv->hw->wiphy), cmd, ret); + else + ret = 1; + + priv->radio_on = enable; + return ret; +} + +/* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ +static int at76_set_pm_mode(struct at76_priv *priv) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC_MGMT; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); + priv->mib_buf.data.byte = priv->pm_mode; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_preamble(struct at76_priv *priv, u8 type) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, preamble_type); + priv->mib_buf.data.byte = type; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_frag(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_rts(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); + priv->mib_buf.data.byte = onoff; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static void at76_dump_mib_mac_addr(struct at76_priv *priv) +{ + int i; + int ret; + struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, + sizeof(struct mib_mac_addr)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", + wiphy_name(priv->hw->wiphy), + mac2str(m->mac_addr), m->res[0], m->res[1]); + for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " + "status %d", wiphy_name(priv->hw->wiphy), i, + mac2str(m->group_addr[i]), m->group_addr_status[i]); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_wep(struct at76_priv *priv) +{ + int i; + int ret; + int key_len; + struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, + sizeof(struct mib_mac_wep)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " + "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " + "encr_level %u key %d", wiphy_name(priv->hw->wiphy), + m->privacy_invoked, m->wep_default_key_id, + m->wep_key_mapping_len, m->exclude_unencrypted, + le32_to_cpu(m->wep_icv_error_count), + le32_to_cpu(m->wep_excluded_count), m->encryption_level, + m->wep_default_key_id); + + key_len = (m->encryption_level == 1) ? + WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; + + for (i = 0; i < WEP_KEYS; i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", + wiphy_name(priv->hw->wiphy), i, + hex2str(m->wep_default_keyvalue[i], key_len)); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) +{ + int ret; + struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, + sizeof(struct mib_mac_mgmt)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " + "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " + "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " + "current_bssid %s current_essid %s current_bss_type %d " + "pm_mode %d ibss_change %d res %d " + "multi_domain_capability_implemented %d " + "international_roaming %d country_string %.3s", + wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), + le16_to_cpu(m->CFP_max_duration), + le16_to_cpu(m->medium_occupancy_limit), + le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), + m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, + m->CFP_period, mac2str(m->current_bssid), + hex2str(m->current_essid, IW_ESSID_MAX_SIZE), + m->current_bss_type, m->power_mgmt_mode, m->ibss_change, + m->res, m->multi_domain_capability_implemented, + m->multi_domain_capability_enabled, m->country_string); +exit: + kfree(m); +} + +static void at76_dump_mib_mac(struct at76_priv *priv) +{ + int ret; + struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " + "max_rx_lifetime %d frag_threshold %d rts_threshold %d " + "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " + "scan_type %d scan_channel %d probe_delay %u " + "min_channel_time %d max_channel_time %d listen_int %d " + "desired_ssid %s desired_bssid %s desired_bsstype %d", + wiphy_name(priv->hw->wiphy), + le32_to_cpu(m->max_tx_msdu_lifetime), + le32_to_cpu(m->max_rx_lifetime), + le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), + le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), + m->short_retry_time, m->long_retry_time, m->scan_type, + m->scan_channel, le16_to_cpu(m->probe_delay), + le16_to_cpu(m->min_channel_time), + le16_to_cpu(m->max_channel_time), + le16_to_cpu(m->listen_interval), + hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), + mac2str(m->desired_bssid), m->desired_bsstype); +exit: + kfree(m); +} + +static void at76_dump_mib_phy(struct at76_priv *priv) +{ + int ret; + struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " + "sifs_time %d preamble_length %d plcp_header_length %d " + "mpdu_max_length %d cca_mode_supported %d operation_rate_set " + "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " + "phy_type %d current_reg_domain %d", + wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), + le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), + le16_to_cpu(m->preamble_length), + le16_to_cpu(m->plcp_header_length), + le16_to_cpu(m->mpdu_max_length), + le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], + m->operation_rate_set[1], m->operation_rate_set[2], + m->operation_rate_set[3], m->channel_id, m->current_cca_mode, + m->phy_type, m->current_reg_domain); +exit: + kfree(m); +} + +static void at76_dump_mib_local(struct at76_priv *priv) +{ + int ret; + struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " + "txautorate_fallback %d ssid_size %d promiscuous_mode %d " + "preamble_type %d", wiphy_name(priv->hw->wiphy), + m->beacon_enable, + m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, + m->preamble_type); +exit: + kfree(m); +} + +static void at76_dump_mib_mdomain(struct at76_priv *priv) +{ + int ret; + struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, + sizeof(struct mib_mdomain)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", + wiphy_name(priv->hw->wiphy), + hex2str(m->channel_list, sizeof(m->channel_list))); + + at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", + wiphy_name(priv->hw->wiphy), + hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); +exit: + kfree(m); +} + +/* Enable monitor mode */ +static int at76_start_monitor(struct at76_priv *priv) +{ + struct at76_req_scan scan; + int ret; + + memset(&scan, 0, sizeof(struct at76_req_scan)); + memset(scan.bssid, 0xff, ETH_ALEN); + + scan.channel = priv->channel; + scan.scan_type = SCAN_TYPE_PASSIVE; + scan.international_scan = 0; + + ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); + if (ret >= 0) + ret = at76_get_cmd_status(priv->udev, CMD_SCAN); + + return ret; +} + +/* Calculate padding from txbuf->wlength (which excludes the USB TX header), + likely to compensate a flaw in the AT76C503A USB part ... */ +static inline int at76_calc_padding(int wlen) +{ + /* add the USB TX header */ + wlen += AT76_TX_HDRLEN; + + wlen = wlen % 64; + + if (wlen < 50) + return 50 - wlen; + + if (wlen >= 61) + return 64 + 50 - wlen; + + return 0; +} + +static void at76_rx_callback(struct urb *urb) +{ + struct at76_priv *priv = urb->context; + + priv->rx_tasklet.data = (unsigned long)urb; + tasklet_schedule(&priv->rx_tasklet); + return; +} + +static int at76_submit_rx_urb(struct at76_priv *priv) +{ + int ret; + int size; + struct sk_buff *skb = priv->rx_skb; + + if (!priv->rx_urb) { + printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", + wiphy_name(priv->hw->wiphy), __func__); + return -EFAULT; + } + + if (!skb) { + skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); + if (!skb) { + printk(KERN_ERR "%s: cannot allocate rx skbuff\n", + wiphy_name(priv->hw->wiphy)); + ret = -ENOMEM; + goto exit; + } + priv->rx_skb = skb; + } else { + skb_push(skb, skb_headroom(skb)); + skb_trim(skb, 0); + } + + size = skb_tailroom(skb); + usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, + skb_put(skb, size), size, at76_rx_callback, priv); + ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); + if (ret < 0) { + if (ret == -ENODEV) + at76_dbg(DBG_DEVSTART, + "usb_submit_urb returned -ENODEV"); + else + printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + } + +exit: + if (ret < 0 && ret != -ENODEV) + printk(KERN_ERR "%s: cannot submit rx urb - please unload the " + "driver and/or power cycle the device\n", + wiphy_name(priv->hw->wiphy)); + + return ret; +} + +/* Download external firmware */ +static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) +{ + int ret; + int op_mode; + int blockno = 0; + int bsize; + u8 *block; + u8 *buf = fwe->extfw; + int size = fwe->extfw_size; + + if (!buf || !size) + return -ENOENT; + + op_mode = at76_get_op_mode(udev); + at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); + + if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { + dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", + op_mode); + return -EINVAL; + } + + block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return -ENOMEM; + + at76_dbg(DBG_DEVSTART, "downloading external firmware"); + + /* for fw >= 0.100, the device needs an extra empty block */ + do { + bsize = min_t(int, size, FW_BLOCK_SIZE); + memcpy(block, buf, bsize); + at76_dbg(DBG_DEVSTART, + "ext fw, size left = %5d, bsize = %4d, blockno = %2d", + size, bsize, blockno); + ret = at76_load_ext_fw_block(udev, blockno, block, bsize); + if (ret != bsize) { + dev_printk(KERN_ERR, &udev->dev, + "loading %dth firmware block failed: %d\n", + blockno, ret); + goto exit; + } + buf += bsize; + size -= bsize; + blockno++; + } while (bsize > 0); + + if (at76_is_505a(fwe->board_type)) { + at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); + schedule_timeout_interruptible(HZ / 5 + 1); + } + +exit: + kfree(block); + if (ret < 0) + dev_printk(KERN_ERR, &udev->dev, + "downloading external firmware failed: %d\n", ret); + return ret; +} + +/* Download internal firmware */ +static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) +{ + int ret; + int need_remap = !at76_is_505a(fwe->board_type); + + ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, + need_remap ? 0 : 2 * HZ); + + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "downloading internal fw failed with %d\n", ret); + goto exit; + } + + at76_dbg(DBG_DEVSTART, "sending REMAP"); + + /* no REMAP for 505A (see SF driver) */ + if (need_remap) { + ret = at76_remap(udev); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "sending REMAP failed with %d\n", ret); + goto exit; + } + } + + at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); + schedule_timeout_interruptible(2 * HZ + 1); + usb_reset_device(udev); + +exit: + return ret; +} + +static int at76_startup_device(struct at76_priv *priv) +{ + struct at76_card_config *ccfg = &priv->card_config; + int ret; + + at76_dbg(DBG_PARAMS, + "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " + "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, + priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE), + priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", + priv->channel, priv->wep_enabled ? "enabled" : "disabled", + priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); + at76_dbg(DBG_PARAMS, + "%s param: preamble %s rts %d retry %d frag %d " + "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), + preambles[priv->preamble_type], priv->rts_threshold, + priv->short_retry_limit, priv->frag_threshold, + priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == + TX_RATE_2MBIT ? "2MBit" : priv->txrate == + TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == + TX_RATE_11MBIT ? "11MBit" : priv->txrate == + TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); + at76_dbg(DBG_PARAMS, + "%s param: pm_mode %d pm_period %d auth_mode %s " + "scan_times %d %d scan_mode %s", + wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, + priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", + priv->scan_min_time, priv->scan_max_time, + priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); + + memset(ccfg, 0, sizeof(struct at76_card_config)); + ccfg->promiscuous_mode = 0; + ccfg->short_retry_limit = priv->short_retry_limit; + + if (priv->wep_enabled) { + if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) + ccfg->encryption_type = 2; + else + ccfg->encryption_type = 1; + + /* jal: always exclude unencrypted if WEP is active */ + ccfg->exclude_unencrypted = 1; + } else { + ccfg->exclude_unencrypted = 0; + ccfg->encryption_type = 0; + } + + ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); + ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); + + memcpy(ccfg->basic_rate_set, hw_rates, 4); + /* jal: really needed, we do a set_mib for autorate later ??? */ + ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); + ccfg->channel = priv->channel; + ccfg->privacy_invoked = priv->wep_enabled; + memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); + ccfg->ssid_len = priv->essid_size; + + ccfg->wep_default_key_id = priv->wep_key_id; + memcpy(ccfg->wep_default_key_value, priv->wep_keys, + sizeof(priv->wep_keys)); + + ccfg->short_preamble = priv->preamble_type; + ccfg->beacon_period = cpu_to_le16(priv->beacon_period); + + ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, + sizeof(struct at76_card_config)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return ret; + } + + at76_wait_completion(priv, CMD_STARTUP); + + /* remove BSSID from previous run */ + memset(priv->bssid, 0, ETH_ALEN); + + if (at76_set_radio(priv, 1) == 1) + at76_wait_completion(priv, CMD_RADIO_ON); + + ret = at76_set_preamble(priv, priv->preamble_type); + if (ret < 0) + return ret; + + ret = at76_set_frag(priv, priv->frag_threshold); + if (ret < 0) + return ret; + + ret = at76_set_rts(priv, priv->rts_threshold); + if (ret < 0) + return ret; + + ret = at76_set_autorate_fallback(priv, + priv->txrate == TX_RATE_AUTO ? 1 : 0); + if (ret < 0) + return ret; + + ret = at76_set_pm_mode(priv); + if (ret < 0) + return ret; + + if (at76_debug & DBG_MIB) { + at76_dump_mib_mac(priv); + at76_dump_mib_mac_addr(priv); + at76_dump_mib_mac_mgmt(priv); + at76_dump_mib_mac_wep(priv); + at76_dump_mib_mdomain(priv); + at76_dump_mib_phy(priv); + at76_dump_mib_local(priv); + } + + return 0; +} + +/* Enable or disable promiscuous mode */ +static void at76_work_set_promisc(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + work_set_promisc); + int ret = 0; + + mutex_lock(&priv->mtx); + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); + priv->mib_buf.data.byte = priv->promisc ? 1 : 0; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + mutex_unlock(&priv->mtx); +} + +/* Submit Rx urb back to the device */ +static void at76_work_submit_rx(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + work_submit_rx); + + mutex_lock(&priv->mtx); + at76_submit_rx_urb(priv); + mutex_unlock(&priv->mtx); +} + +static void at76_rx_tasklet(unsigned long param) +{ + struct urb *urb = (struct urb *)param; + struct at76_priv *priv = urb->context; + struct at76_rx_buffer *buf; + struct ieee80211_rx_status rx_status = { 0 }; + + if (priv->device_unplugged) { + at76_dbg(DBG_DEVSTART, "device unplugged"); + if (urb) + at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); + return; + } + + if (!priv->rx_skb || !priv->rx_skb->data) + return; + + buf = (struct at76_rx_buffer *)priv->rx_skb->data; + + if (urb->status != 0) { + if (urb->status != -ENOENT && urb->status != -ECONNRESET) + at76_dbg(DBG_URB, + "%s %s: - nonzero Rx bulk status received: %d", + __func__, wiphy_name(priv->hw->wiphy), + urb->status); + return; + } + + at76_dbg(DBG_RX_ATMEL_HDR, + "%s: rx frame: rate %d rssi %d noise %d link %d", + wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, + buf->noise_level, buf->link_quality); + + skb_pull(priv->rx_skb, AT76_RX_HDRLEN); + skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); + at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, + priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); + + rx_status.signal = buf->rssi; + rx_status.flag |= RX_FLAG_DECRYPTED; + rx_status.flag |= RX_FLAG_IV_STRIPPED; + + at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", + priv->rx_skb->len, priv->rx_skb->data_len); + ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status); + + /* Use a new skb for the next receive */ + priv->rx_skb = NULL; + + at76_submit_rx_urb(priv); +} + +/* Load firmware into kernel memory and parse it */ +static struct fwentry *at76_load_firmware(struct usb_device *udev, + enum board_type board_type) +{ + int ret; + char *str; + struct at76_fw_header *fwh; + struct fwentry *fwe = &firmwares[board_type]; + + mutex_lock(&fw_mutex); + + if (fwe->loaded) { + at76_dbg(DBG_FW, "re-using previously loaded fw"); + goto exit; + } + + at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); + ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", + fwe->fwname); + dev_printk(KERN_ERR, &udev->dev, + "you may need to download the firmware from " + "http://developer.berlios.de/projects/at76c503a/\n"); + goto exit; + } + + at76_dbg(DBG_FW, "got it."); + fwh = (struct at76_fw_header *)(fwe->fw->data); + + if (fwe->fw->size <= sizeof(*fwh)) { + dev_printk(KERN_ERR, &udev->dev, + "firmware is too short (0x%zx)\n", fwe->fw->size); + goto exit; + } + + /* CRC currently not checked */ + fwe->board_type = le32_to_cpu(fwh->board_type); + if (fwe->board_type != board_type) { + dev_printk(KERN_ERR, &udev->dev, + "board type mismatch, requested %u, got %u\n", + board_type, fwe->board_type); + goto exit; + } + + fwe->fw_version.major = fwh->major; + fwe->fw_version.minor = fwh->minor; + fwe->fw_version.patch = fwh->patch; + fwe->fw_version.build = fwh->build; + + str = (char *)fwh + le32_to_cpu(fwh->str_offset); + fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); + fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); + fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); + fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); + + fwe->loaded = 1; + + dev_printk(KERN_DEBUG, &udev->dev, + "using firmware %s (version %d.%d.%d-%d)\n", + fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); + + at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, + le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), + le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); + at76_dbg(DBG_DEVSTART, "firmware id %s", str); + +exit: + mutex_unlock(&fw_mutex); + + if (fwe->loaded) + return fwe; + else + return NULL; +} + +static void at76_mac80211_tx_callback(struct urb *urb) +{ + struct at76_priv *priv = urb->context; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + switch (urb->status) { + case 0: + /* success */ + info->flags |= IEEE80211_TX_STAT_ACK; + break; + case -ENOENT: + case -ECONNRESET: + /* fail, urb has been unlinked */ + /* FIXME: add error message */ + break; + default: + at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", + __func__, urb->status); + break; + } + + memset(&info->status, 0, sizeof(info->status)); + + ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); + + priv->tx_skb = NULL; + + ieee80211_wake_queues(priv->hw); +} + +static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct at76_priv *priv = hw->priv; + struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + int padding, submit_len, ret; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + if (priv->tx_urb->status == -EINPROGRESS) { + printk(KERN_ERR "%s: %s called while tx urb is pending\n", + wiphy_name(priv->hw->wiphy), __func__); + return NETDEV_TX_BUSY; + } + + ieee80211_stop_queues(hw); + + at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ + + WARN_ON(priv->tx_skb != NULL); + + priv->tx_skb = skb; + padding = at76_calc_padding(skb->len); + submit_len = AT76_TX_HDRLEN + skb->len + padding; + + /* setup 'Atmel' header */ + memset(tx_buffer, 0, sizeof(*tx_buffer)); + tx_buffer->padding = padding; + tx_buffer->wlength = cpu_to_le16(skb->len); + tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; + memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); + memcpy(tx_buffer->packet, skb->data, skb->len); + + at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", + wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), + tx_buffer->padding, tx_buffer->tx_rate); + + /* send stuff */ + at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, + "%s(): tx_buffer %d bytes:", __func__, submit_len); + usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, + submit_len, at76_mac80211_tx_callback, priv); + ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); + if (ret) { + printk(KERN_ERR "%s: error in tx submit urb: %d\n", + wiphy_name(priv->hw->wiphy), ret); + if (ret == -EINVAL) + printk(KERN_ERR + "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", + wiphy_name(priv->hw->wiphy), priv->tx_urb, + priv->tx_urb->hcpriv, priv->tx_urb->complete); + } + + return 0; +} + +static int at76_mac80211_start(struct ieee80211_hw *hw) +{ + struct at76_priv *priv = hw->priv; + int ret; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + ret = at76_submit_rx_urb(priv); + if (ret < 0) { + printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto error; + } + + at76_startup_device(priv); + + at76_start_monitor(priv); + +error: + mutex_unlock(&priv->mtx); + + return 0; +} + +static void at76_mac80211_stop(struct ieee80211_hw *hw) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + if (!priv->device_unplugged) { + /* We are called by "ifconfig ethX down", not because the + * device is not available anymore. */ + at76_set_radio(priv, 0); + + /* We unlink rx_urb because at76_open() re-submits it. + * If unplugged, at76_delete_device() takes care of it. */ + usb_kill_urb(priv->rx_urb); + } + + mutex_unlock(&priv->mtx); +} + +static int at76_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct at76_priv *priv = hw->priv; + int ret = 0; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + switch (conf->type) { + case NL80211_IFTYPE_STATION: + priv->iw_mode = IW_MODE_INFRA; + break; + default: + ret = -EOPNOTSUPP; + goto exit; + } + +exit: + mutex_unlock(&priv->mtx); + + return ret; +} + +static void at76_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + at76_dbg(DBG_MAC80211, "%s()", __func__); +} + +static int at76_join(struct at76_priv *priv) +{ + struct at76_req_join join; + int ret; + + memset(&join, 0, sizeof(struct at76_req_join)); + memcpy(join.essid, priv->essid, priv->essid_size); + join.essid_size = priv->essid_size; + memcpy(join.bssid, priv->bssid, ETH_ALEN); + join.bss_type = INFRASTRUCTURE_MODE; + join.channel = priv->channel; + join.timeout = cpu_to_le16(2000); + + at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); + ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, + sizeof(struct at76_req_join)); + + if (ret < 0) { + printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return 0; + } + + ret = at76_wait_completion(priv, CMD_JOIN); + at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); + if (ret != CMD_STATUS_COMPLETE) { + printk(KERN_ERR "%s: at76_wait_completion failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return 0; + } + + at76_set_pm_mode(priv); + + return 0; +} + +static void at76_dwork_hw_scan(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + dwork_hw_scan.work); + int ret; + + mutex_lock(&priv->mtx); + + ret = at76_get_cmd_status(priv->udev, CMD_SCAN); + at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); + + /* FIXME: add maximum time for scan to complete */ + + if (ret != CMD_STATUS_COMPLETE) { + queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, + SCAN_POLL_INTERVAL); + goto exit; + } + + ieee80211_scan_completed(priv->hw); + + if (is_valid_ether_addr(priv->bssid)) + at76_join(priv); + + ieee80211_wake_queues(priv->hw); + +exit: + mutex_unlock(&priv->mtx); +} + +static int at76_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) +{ + struct at76_priv *priv = hw->priv; + struct at76_req_scan scan; + int ret; + + at76_dbg(DBG_MAC80211, "%s():", __func__); + at76_dbg_dump(DBG_MAC80211, ssid, len, "ssid %zd bytes:", len); + + mutex_lock(&priv->mtx); + + ieee80211_stop_queues(hw); + + memset(&scan, 0, sizeof(struct at76_req_scan)); + memset(scan.bssid, 0xFF, ETH_ALEN); + scan.scan_type = SCAN_TYPE_ACTIVE; + if (priv->essid_size > 0) { + memcpy(scan.essid, ssid, len); + scan.essid_size = len; + } + scan.min_channel_time = cpu_to_le16(priv->scan_min_time); + scan.max_channel_time = cpu_to_le16(priv->scan_max_time); + scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); + scan.international_scan = 0; + + at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); + ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); + + if (ret < 0) { + err("CMD_SCAN failed: %d", ret); + goto exit; + } + + queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, + SCAN_POLL_INTERVAL); + +exit: + mutex_unlock(&priv->mtx); + + return 0; +} + +static int at76_config(struct ieee80211_hw *hw, u32 changed) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d", + __func__, hw->conf.channel->hw_value, + hw->conf.radio_enabled); + at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); + + mutex_lock(&priv->mtx); + + priv->channel = hw->conf.channel->hw_value; + + if (is_valid_ether_addr(priv->bssid)) + at76_join(priv); + else + at76_start_monitor(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +static int at76_config_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_if_conf *conf) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s():", __func__); + at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); + + mutex_lock(&priv->mtx); + + memcpy(priv->bssid, conf->bssid, ETH_ALEN); + + if (is_valid_ether_addr(priv->bssid)) + /* mac80211 is joining a bss */ + at76_join(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +/* must be atomic */ +static void at76_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, int mc_count, + struct dev_addr_list *mc_list) +{ + struct at76_priv *priv = hw->priv; + int flags; + + at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " + "total_flags=0x%08x mc_count=%d", + __func__, changed_flags, *total_flags, mc_count); + + flags = changed_flags & AT76_SUPPORTED_FILTERS; + *total_flags = AT76_SUPPORTED_FILTERS; + + /* FIXME: access to priv->promisc should be protected with + * priv->mtx, but it's impossible because this function needs to be + * atomic */ + + if (flags && !priv->promisc) { + /* mac80211 wants us to enable promiscuous mode */ + priv->promisc = 1; + } else if (!flags && priv->promisc) { + /* we need to disable promiscuous mode */ + priv->promisc = 0; + } else + return; + + queue_work(hw->workqueue, &priv->work_set_promisc); +} + +static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct at76_priv *priv = hw->priv; + + int i; + + at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d " + "key->keylen %d", + __func__, cmd, key->alg, key->keyidx, key->keylen); + + if (key->alg != ALG_WEP) + return -EOPNOTSUPP; + + key->hw_key_idx = key->keyidx; + + mutex_lock(&priv->mtx); + + switch (cmd) { + case SET_KEY: + memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); + priv->wep_keys_len[key->keyidx] = key->keylen; + + /* FIXME: find out how to do this properly */ + priv->wep_key_id = key->keyidx; + + break; + case DISABLE_KEY: + default: + priv->wep_keys_len[key->keyidx] = 0; + break; + } + + priv->wep_enabled = 0; + + for (i = 0; i < WEP_KEYS; i++) { + if (priv->wep_keys_len[i] != 0) + priv->wep_enabled = 1; + } + + at76_startup_device(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +static const struct ieee80211_ops at76_ops = { + .tx = at76_mac80211_tx, + .add_interface = at76_add_interface, + .remove_interface = at76_remove_interface, + .config = at76_config, + .config_interface = at76_config_interface, + .configure_filter = at76_configure_filter, + .start = at76_mac80211_start, + .stop = at76_mac80211_stop, + .hw_scan = at76_hw_scan, + .set_key = at76_set_key, +}; + +/* Allocate network device and initialize private data */ +static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) +{ + struct ieee80211_hw *hw; + struct at76_priv *priv; + + hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); + if (!hw) { + printk(KERN_ERR DRIVER_NAME ": could not register" + " ieee80211_hw\n"); + return NULL; + } + + priv = hw->priv; + priv->hw = hw; + + priv->udev = udev; + + mutex_init(&priv->mtx); + INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); + INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); + INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); + + priv->rx_tasklet.func = at76_rx_tasklet; + priv->rx_tasklet.data = 0; + + priv->pm_mode = AT76_PM_OFF; + priv->pm_period = 0; + + /* unit us */ + priv->hw->channel_change_time = 100000; + + return priv; +} + +static int at76_alloc_urbs(struct at76_priv *priv, + struct usb_interface *interface) +{ + struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; + int i; + int buffer_size; + struct usb_host_interface *iface_desc; + + at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); + + at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, + interface->altsetting[0].desc.bNumEndpoints); + + ep_in = NULL; + ep_out = NULL; + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { + endpoint = &iface_desc->endpoint[i].desc; + + at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", + __func__, i, endpoint->bEndpointAddress, + endpoint->bmAttributes); + + if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) + ep_in = endpoint; + + if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) + ep_out = endpoint; + } + + if (!ep_in || !ep_out) { + dev_printk(KERN_ERR, &interface->dev, + "bulk endpoints missing\n"); + return -ENXIO; + } + + priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); + priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); + + priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!priv->rx_urb || !priv->tx_urb) { + dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); + return -ENOMEM; + } + + buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; + priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!priv->bulk_out_buffer) { + dev_printk(KERN_ERR, &interface->dev, + "cannot allocate output buffer\n"); + return -ENOMEM; + } + + at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); + + return 0; +} + +static struct ieee80211_rate at76_rates[] = { + { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, + { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, + { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, + { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, +}; + +static struct ieee80211_channel at76_channels[] = { + { .center_freq = 2412, .hw_value = 1 }, + { .center_freq = 2417, .hw_value = 2 }, + { .center_freq = 2422, .hw_value = 3 }, + { .center_freq = 2427, .hw_value = 4 }, + { .center_freq = 2432, .hw_value = 5 }, + { .center_freq = 2437, .hw_value = 6 }, + { .center_freq = 2442, .hw_value = 7 }, + { .center_freq = 2447, .hw_value = 8 }, + { .center_freq = 2452, .hw_value = 9 }, + { .center_freq = 2457, .hw_value = 10 }, + { .center_freq = 2462, .hw_value = 11 }, + { .center_freq = 2467, .hw_value = 12 }, + { .center_freq = 2472, .hw_value = 13 }, + { .center_freq = 2484, .hw_value = 14 } +}; + +static struct ieee80211_supported_band at76_supported_band = { + .channels = at76_channels, + .n_channels = ARRAY_SIZE(at76_channels), + .bitrates = at76_rates, + .n_bitrates = ARRAY_SIZE(at76_rates), +}; + +/* Register network device and initialize the hardware */ +static int at76_init_new_device(struct at76_priv *priv, + struct usb_interface *interface) +{ + int ret; + + /* set up the endpoint information */ + /* check out the endpoints */ + + at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", + interface->cur_altsetting->desc.bNumEndpoints); + + ret = at76_alloc_urbs(priv, interface); + if (ret < 0) + goto exit; + + /* MAC address */ + ret = at76_get_hw_config(priv); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "cannot get MAC address\n"); + goto exit; + } + + priv->domain = at76_get_reg_domain(priv->regulatory_domain); + + priv->channel = DEF_CHANNEL; + priv->iw_mode = IW_MODE_INFRA; + priv->rts_threshold = DEF_RTS_THRESHOLD; + priv->frag_threshold = DEF_FRAG_THRESHOLD; + priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; + priv->txrate = TX_RATE_AUTO; + priv->preamble_type = PREAMBLE_TYPE_LONG; + priv->beacon_period = 100; + priv->auth_mode = WLAN_AUTH_OPEN; + priv->scan_min_time = DEF_SCAN_MIN_TIME; + priv->scan_max_time = DEF_SCAN_MAX_TIME; + priv->scan_mode = SCAN_TYPE_ACTIVE; + + /* mac80211 initialisation */ + priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band; + priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | + IEEE80211_HW_SIGNAL_UNSPEC; + + SET_IEEE80211_DEV(priv->hw, &interface->dev); + SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); + + ret = ieee80211_register_hw(priv->hw); + if (ret) { + printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", + ret); + goto exit; + } + + priv->mac80211_registered = 1; + + printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", + wiphy_name(priv->hw->wiphy), + interface->dev.bus_id, mac2str(priv->mac_addr), + priv->fw_version.major, priv->fw_version.minor, + priv->fw_version.patch, priv->fw_version.build); + printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", + wiphy_name(priv->hw->wiphy), + priv->regulatory_domain, priv->domain->name); + +exit: + return ret; +} + +static void at76_delete_device(struct at76_priv *priv) +{ + at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); + + /* The device is gone, don't bother turning it off */ + priv->device_unplugged = 1; + + if (priv->mac80211_registered) + ieee80211_unregister_hw(priv->hw); + + /* assuming we used keventd, it must quiesce too */ + flush_scheduled_work(); + + kfree(priv->bulk_out_buffer); + + if (priv->tx_urb) { + usb_kill_urb(priv->tx_urb); + usb_free_urb(priv->tx_urb); + } + if (priv->rx_urb) { + usb_kill_urb(priv->rx_urb); + usb_free_urb(priv->rx_urb); + } + + at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); + + if (priv->rx_skb) + kfree_skb(priv->rx_skb); + + usb_put_dev(priv->udev); + + at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", + __func__); + ieee80211_free_hw(priv->hw); + + at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); +} + +static int at76_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + int ret; + struct at76_priv *priv; + struct fwentry *fwe; + struct usb_device *udev; + int op_mode; + int need_ext_fw = 0; + struct mib_fw_version fwv; + int board_type = (int)id->driver_info; + + udev = usb_get_dev(interface_to_usbdev(interface)); + + /* Load firmware into kernel memory */ + fwe = at76_load_firmware(udev, board_type); + if (!fwe) { + ret = -ENOENT; + goto error; + } + + op_mode = at76_get_op_mode(udev); + + at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); + + /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? + we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ + + if (op_mode == OPMODE_HW_CONFIG_MODE) { + dev_printk(KERN_ERR, &interface->dev, + "cannot handle a device in HW_CONFIG_MODE\n"); + ret = -EBUSY; + goto error; + } + + if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH + && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { + /* download internal firmware part */ + dev_printk(KERN_DEBUG, &interface->dev, + "downloading internal firmware\n"); + ret = at76_load_internal_fw(udev, fwe); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "error %d downloading internal firmware\n", + ret); + goto error; + } + usb_put_dev(udev); + return ret; + } + + /* Internal firmware already inside the device. Get firmware + * version to test if external firmware is loaded. + * This works only for newer firmware, e.g. the Intersil 0.90.x + * says "control timeout on ep0in" and subsequent + * at76_get_op_mode() fail too :-( */ + + /* if version >= 0.100.x.y or device with built-in flash we can + * query the device for the fw version */ + if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) + || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { + ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); + if (ret < 0 || (fwv.major | fwv.minor) == 0) + need_ext_fw = 1; + } else + /* No way to check firmware version, reload to be sure */ + need_ext_fw = 1; + + if (need_ext_fw) { + dev_printk(KERN_DEBUG, &interface->dev, + "downloading external firmware\n"); + + ret = at76_load_external_fw(udev, fwe); + if (ret) + goto error; + + /* Re-check firmware version */ + ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "error %d getting firmware version\n", ret); + goto error; + } + } + + priv = at76_alloc_new_device(udev); + if (!priv) { + ret = -ENOMEM; + goto error; + } + + usb_set_intfdata(interface, priv); + + memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); + priv->board_type = board_type; + + ret = at76_init_new_device(priv, interface); + if (ret < 0) + at76_delete_device(priv); + + return ret; + +error: + usb_put_dev(udev); + return ret; +} + +static void at76_disconnect(struct usb_interface *interface) +{ + struct at76_priv *priv; + + priv = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + /* Disconnect after loading internal firmware */ + if (!priv) + return; + + printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy)); + at76_delete_device(priv); + dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); +} + +/* Structure for registering this driver with the USB subsystem */ +static struct usb_driver at76_driver = { + .name = DRIVER_NAME, + .probe = at76_probe, + .disconnect = at76_disconnect, + .id_table = dev_table, +}; + +static int __init at76_mod_init(void) +{ + int result; + + printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); + + mutex_init(&fw_mutex); + + /* register this driver with the USB subsystem */ + result = usb_register(&at76_driver); + if (result < 0) + printk(KERN_ERR DRIVER_NAME + ": usb_register failed (status %d)\n", result); + + led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); + return result; +} + +static void __exit at76_mod_exit(void) +{ + int i; + + printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); + usb_deregister(&at76_driver); + for (i = 0; i < ARRAY_SIZE(firmwares); i++) { + if (firmwares[i].fw) + release_firmware(firmwares[i].fw); + } + led_trigger_unregister_simple(ledtrig_tx); +} + +module_param_named(debug, at76_debug, int, 0600); +MODULE_PARM_DESC(debug, "Debugging level"); + +module_init(at76_mod_init); +module_exit(at76_mod_exit); + +MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); +MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); +MODULE_AUTHOR("Alex <alex@foogod.com>"); +MODULE_AUTHOR("Nick Jones"); +MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); +MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); +MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); +MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/wireless/at76c50x-usb.h b/drivers/net/wireless/at76c50x-usb.h new file mode 100644 index 00000000000..1ec5ccffdbc --- /dev/null +++ b/drivers/net/wireless/at76c50x-usb.h @@ -0,0 +1,463 @@ +/* + * Copyright (c) 2002,2003 Oliver Kurth + * (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de> + * (c) 2007 Guido Guenther <agx@sigxcpu.org> + * + * 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 driver was based on information from the Sourceforge driver + * released and maintained by Atmel: + * + * http://sourceforge.net/projects/atmelwlandriver/ + * + * Although the code was completely re-written, + * it would have been impossible without Atmel's decision to + * release an Open Source driver (unfortunately the firmware was + * kept binary only). Thanks for that decision to Atmel! + */ + +#ifndef _AT76_USB_H +#define _AT76_USB_H + +/* Board types */ +enum board_type { + BOARD_503_ISL3861 = 1, + BOARD_503_ISL3863 = 2, + BOARD_503 = 3, + BOARD_503_ACC = 4, + BOARD_505 = 5, + BOARD_505_2958 = 6, + BOARD_505A = 7, + BOARD_505AMX = 8 +}; + +#define CMD_STATUS_IDLE 0x00 +#define CMD_STATUS_COMPLETE 0x01 +#define CMD_STATUS_UNKNOWN 0x02 +#define CMD_STATUS_INVALID_PARAMETER 0x03 +#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 +#define CMD_STATUS_TIME_OUT 0x07 +#define CMD_STATUS_IN_PROGRESS 0x08 +#define CMD_STATUS_HOST_FAILURE 0xff +#define CMD_STATUS_SCAN_FAILED 0xf0 + +/* answers to get op mode */ +#define OPMODE_NONE 0x00 +#define OPMODE_NORMAL_NIC_WITH_FLASH 0x01 +#define OPMODE_HW_CONFIG_MODE 0x02 +#define OPMODE_DFU_MODE_WITH_FLASH 0x03 +#define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04 + +#define CMD_SET_MIB 0x01 +#define CMD_GET_MIB 0x02 +#define CMD_SCAN 0x03 +#define CMD_JOIN 0x04 +#define CMD_START_IBSS 0x05 +#define CMD_RADIO_ON 0x06 +#define CMD_RADIO_OFF 0x07 +#define CMD_STARTUP 0x0B + +#define MIB_LOCAL 0x01 +#define MIB_MAC_ADDR 0x02 +#define MIB_MAC 0x03 +#define MIB_MAC_MGMT 0x05 +#define MIB_MAC_WEP 0x06 +#define MIB_PHY 0x07 +#define MIB_FW_VERSION 0x08 +#define MIB_MDOMAIN 0x09 + +#define ADHOC_MODE 1 +#define INFRASTRUCTURE_MODE 2 + +/* values for struct mib_local, field preamble_type */ +#define PREAMBLE_TYPE_LONG 0 +#define PREAMBLE_TYPE_SHORT 1 +#define PREAMBLE_TYPE_AUTO 2 + +/* values for tx_rate */ +#define TX_RATE_1MBIT 0 +#define TX_RATE_2MBIT 1 +#define TX_RATE_5_5MBIT 2 +#define TX_RATE_11MBIT 3 +#define TX_RATE_AUTO 4 + +/* power management modes */ +#define AT76_PM_OFF 1 +#define AT76_PM_ON 2 +#define AT76_PM_SMART 3 + +struct hwcfg_r505 { + u8 cr39_values[14]; + u8 reserved1[14]; + u8 bb_cr[14]; + u8 pidvid[4]; + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + u8 reserved2[14]; + u8 cr15_values[14]; + u8 reserved3[3]; +} __attribute__((packed)); + +struct hwcfg_rfmd { + u8 cr20_values[14]; + u8 cr21_values[14]; + u8 bb_cr[14]; + u8 pidvid[4]; + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + u8 low_power_values[14]; + u8 normal_power_values[14]; + u8 reserved1[3]; +} __attribute__((packed)); + +struct hwcfg_intersil { + u8 mac_addr[ETH_ALEN]; + u8 cr31_values[14]; + u8 cr58_values[14]; + u8 pidvid[4]; + u8 regulatory_domain; + u8 reserved[1]; +} __attribute__((packed)); + +union at76_hwcfg { + struct hwcfg_intersil i; + struct hwcfg_rfmd r3; + struct hwcfg_r505 r5; +}; + +#define WEP_SMALL_KEY_LEN (40 / 8) +#define WEP_LARGE_KEY_LEN (104 / 8) +#define WEP_KEYS (4) + +struct at76_card_config { + u8 exclude_unencrypted; + u8 promiscuous_mode; + u8 short_retry_limit; + u8 encryption_type; + __le16 rts_threshold; + __le16 fragmentation_threshold; /* 256..2346 */ + u8 basic_rate_set[4]; + u8 auto_rate_fallback; /* 0,1 */ + u8 channel; + u8 privacy_invoked; + u8 wep_default_key_id; /* 0..3 */ + u8 current_ssid[32]; + u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN]; + u8 ssid_len; + u8 short_preamble; + __le16 beacon_period; +} __attribute__((packed)); + +struct at76_command { + u8 cmd; + u8 reserved; + __le16 size; + u8 data[0]; +} __attribute__((packed)); + +/* Length of Atmel-specific Rx header before 802.11 frame */ +#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet) + +struct at76_rx_buffer { + __le16 wlength; + u8 rx_rate; + u8 newbss; + u8 fragmentation; + u8 rssi; + u8 link_quality; + u8 noise_level; + __le32 rx_time; + u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; +} __attribute__((packed)); + +/* Length of Atmel-specific Tx header before 802.11 frame */ +#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet) + +struct at76_tx_buffer { + __le16 wlength; + u8 tx_rate; + u8 padding; + u8 reserved[4]; + u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; +} __attribute__((packed)); + +/* defines for scan_type below */ +#define SCAN_TYPE_ACTIVE 0 +#define SCAN_TYPE_PASSIVE 1 + +struct at76_req_scan { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 scan_type; + u8 channel; + __le16 probe_delay; + __le16 min_channel_time; + __le16 max_channel_time; + u8 essid_size; + u8 international_scan; +} __attribute__((packed)); + +struct at76_req_ibss { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + u8 essid_size; + u8 reserved[3]; +} __attribute__((packed)); + +struct at76_req_join { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + __le16 timeout; + u8 essid_size; + u8 reserved; +} __attribute__((packed)); + +struct set_mib_buffer { + u8 type; + u8 size; + u8 index; + u8 reserved; + union { + u8 byte; + __le16 word; + u8 addr[ETH_ALEN]; + } data; +} __attribute__((packed)); + +struct mib_local { + u16 reserved0; + u8 beacon_enable; + u8 txautorate_fallback; + u8 reserved1; + u8 ssid_size; + u8 promiscuous_mode; + u16 reserved2; + u8 preamble_type; + u16 reserved3; +} __attribute__((packed)); + +struct mib_mac_addr { + u8 mac_addr[ETH_ALEN]; + u8 res[2]; /* ??? */ + u8 group_addr[4][ETH_ALEN]; + u8 group_addr_status[4]; +} __attribute__((packed)); + +struct mib_mac { + __le32 max_tx_msdu_lifetime; + __le32 max_rx_lifetime; + __le16 frag_threshold; + __le16 rts_threshold; + __le16 cwmin; + __le16 cwmax; + u8 short_retry_time; + u8 long_retry_time; + u8 scan_type; /* active or passive */ + u8 scan_channel; + __le16 probe_delay; /* delay before ProbeReq in active scan, RO */ + __le16 min_channel_time; + __le16 max_channel_time; + __le16 listen_interval; + u8 desired_ssid[32]; + u8 desired_bssid[ETH_ALEN]; + u8 desired_bsstype; /* ad-hoc or infrastructure */ + u8 reserved2; +} __attribute__((packed)); + +struct mib_mac_mgmt { + __le16 beacon_period; + __le16 CFP_max_duration; + __le16 medium_occupancy_limit; + __le16 station_id; /* assoc id */ + __le16 ATIM_window; + u8 CFP_mode; + u8 privacy_option_implemented; + u8 DTIM_period; + u8 CFP_period; + u8 current_bssid[ETH_ALEN]; + u8 current_essid[32]; + u8 current_bss_type; + u8 power_mgmt_mode; + /* rfmd and 505 */ + u8 ibss_change; + u8 res; + u8 multi_domain_capability_implemented; + u8 multi_domain_capability_enabled; + u8 country_string[3]; + u8 reserved[3]; +} __attribute__((packed)); + +struct mib_mac_wep { + u8 privacy_invoked; /* 0 disable encr., 1 enable encr */ + u8 wep_default_key_id; + u8 wep_key_mapping_len; + u8 exclude_unencrypted; + __le32 wep_icv_error_count; + __le32 wep_excluded_count; + u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN]; + u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */ +} __attribute__((packed)); + +struct mib_phy { + __le32 ed_threshold; + + __le16 slot_time; + __le16 sifs_time; + __le16 preamble_length; + __le16 plcp_header_length; + __le16 mpdu_max_length; + __le16 cca_mode_supported; + + u8 operation_rate_set[4]; + u8 channel_id; + u8 current_cca_mode; + u8 phy_type; + u8 current_reg_domain; +} __attribute__((packed)); + +struct mib_fw_version { + u8 major; + u8 minor; + u8 patch; + u8 build; +} __attribute__((packed)); + +struct mib_mdomain { + u8 tx_powerlevel[14]; + u8 channel_list[14]; /* 0 for invalid channels */ +} __attribute__((packed)); + +struct at76_fw_header { + __le32 crc; /* CRC32 of the whole image */ + __le32 board_type; /* firmware compatibility code */ + u8 build; /* firmware build number */ + u8 patch; /* firmware patch level */ + u8 minor; /* firmware minor version */ + u8 major; /* firmware major version */ + __le32 str_offset; /* offset of the copyright string */ + __le32 int_fw_offset; /* internal firmware image offset */ + __le32 int_fw_len; /* internal firmware image length */ + __le32 ext_fw_offset; /* external firmware image offset */ + __le32 ext_fw_len; /* external firmware image length */ +} __attribute__((packed)); + +/* a description of a regulatory domain and the allowed channels */ +struct reg_domain { + u16 code; + char const *name; + u32 channel_map; /* if bit N is set, channel (N+1) is allowed */ +}; + +/* Data for one loaded firmware file */ +struct fwentry { + const char *const fwname; + const struct firmware *fw; + int extfw_size; + int intfw_size; + /* pointer to loaded firmware, no need to free */ + u8 *extfw; /* external firmware, extfw_size bytes long */ + u8 *intfw; /* internal firmware, intfw_size bytes long */ + enum board_type board_type; /* board type */ + struct mib_fw_version fw_version; + int loaded; /* Loaded and parsed successfully */ +}; + +struct at76_priv { + struct usb_device *udev; /* USB device pointer */ + + struct sk_buff *rx_skb; /* skbuff for receiving data */ + struct sk_buff *tx_skb; /* skbuff for transmitting data */ + void *bulk_out_buffer; /* buffer for sending data */ + + struct urb *tx_urb; /* URB for sending data */ + struct urb *rx_urb; /* URB for receiving data */ + + unsigned int tx_pipe; /* bulk out pipe */ + unsigned int rx_pipe; /* bulk in pipe */ + + struct mutex mtx; /* locks this structure */ + + /* work queues */ + struct work_struct work_set_promisc; + struct work_struct work_submit_rx; + struct delayed_work dwork_hw_scan; + + struct tasklet_struct rx_tasklet; + + /* the WEP stuff */ + int wep_enabled; /* 1 if WEP is enabled */ + int wep_key_id; /* key id to be used */ + u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */ + u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */ + + int channel; + int iw_mode; + u8 bssid[ETH_ALEN]; + u8 essid[IW_ESSID_MAX_SIZE]; + int essid_size; + int radio_on; + int promisc; + + int preamble_type; /* 0 - long, 1 - short, 2 - auto */ + int auth_mode; /* authentication type: 0 open, 1 shared key */ + int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */ + int frag_threshold; /* threshold for fragmentation of tx packets */ + int rts_threshold; /* threshold for RTS mechanism */ + int short_retry_limit; + + int scan_min_time; /* scan min channel time */ + int scan_max_time; /* scan max channel time */ + int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */ + int scan_need_any; /* if set, need to scan for any ESSID */ + + u16 assoc_id; /* current association ID, if associated */ + + u8 pm_mode; /* power management mode */ + u32 pm_period; /* power management period in microseconds */ + + struct reg_domain const *domain; /* reg domain description */ + + /* These fields contain HW config provided by the device (not all of + * these fields are used by all board types) */ + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + + struct at76_card_config card_config; + + enum board_type board_type; + struct mib_fw_version fw_version; + + unsigned int device_unplugged:1; + unsigned int netdev_registered:1; + struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */ + + int beacon_period; /* period of mgmt beacons, Kus */ + + struct ieee80211_hw *hw; + int mac80211_registered; +}; + +#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS + +#define SCAN_POLL_INTERVAL (HZ / 4) + +#define CMD_COMPLETION_TIMEOUT (5 * HZ) + +#define DEF_RTS_THRESHOLD 1536 +#define DEF_FRAG_THRESHOLD 1536 +#define DEF_SHORT_RETRY_LIMIT 8 +#define DEF_CHANNEL 10 +#define DEF_SCAN_MIN_TIME 10 +#define DEF_SCAN_MAX_TIME 120 + +/* the max padding size for tx in bytes (see calc_padding) */ +#define MAX_PADDING_SIZE 53 + +#endif /* _AT76_USB_H */ |