diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-03 11:58:09 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-15 12:02:35 -0700 |
| commit | 1c6592f3b78640902494650efb88d8c2520c5c92 (patch) | |
| tree | bcedbd1353eae39643ee50bc4fb71e6811be1768 | |
| parent | ffac040c05f7887896fbd5e1139e7fc59c30fa21 (diff) | |
Staging: remove at76_usb wireless driver.
There is already an in-kernel driver for this hardware (since 2.6.30),
at76c50x-usb, and it supports all of the same devices. So this driver
can now be deleted.
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Cc: linux-wireless <linux-wireless@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/staging/Makefile | 1 | ||||
| -rw-r--r-- | drivers/staging/at76_usb/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/staging/at76_usb/Makefile | 1 | ||||
| -rw-r--r-- | drivers/staging/at76_usb/TODO | 7 | ||||
| -rw-r--r-- | drivers/staging/at76_usb/at76_usb.c | 5566 | ||||
| -rw-r--r-- | drivers/staging/at76_usb/at76_usb.h | 706 |
7 files changed, 0 insertions, 6291 deletions
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index f7f9051a00e..66188a5bf44 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -57,8 +57,6 @@ source "drivers/staging/wlan-ng/Kconfig" source "drivers/staging/echo/Kconfig" -source "drivers/staging/at76_usb/Kconfig" - source "drivers/staging/poch/Kconfig" source "drivers/staging/agnx/Kconfig" diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index 3b388edd4f7..3c64d5fad65 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_USB_IP_COMMON) += usbip/ obj-$(CONFIG_W35UND) += winbond/ obj-$(CONFIG_PRISM2_USB) += wlan-ng/ obj-$(CONFIG_ECHO) += echo/ -obj-$(CONFIG_USB_ATMEL) += at76_usb/ obj-$(CONFIG_POCH) += poch/ obj-$(CONFIG_AGNX) += agnx/ obj-$(CONFIG_OTUS) += otus/ diff --git a/drivers/staging/at76_usb/Kconfig b/drivers/staging/at76_usb/Kconfig deleted file mode 100644 index 8606f962162..00000000000 --- a/drivers/staging/at76_usb/Kconfig +++ /dev/null @@ -1,8 +0,0 @@ -config USB_ATMEL - tristate "Atmel at76c503/at76c505/at76c505a USB cards" - depends on WLAN_80211 && USB - default N - select FW_LOADER - ---help--- - Enable support for USB Wireless devices using Atmel at76c503, - at76c505 or at76c505a chips. diff --git a/drivers/staging/at76_usb/Makefile b/drivers/staging/at76_usb/Makefile deleted file mode 100644 index 6a47e887230..00000000000 --- a/drivers/staging/at76_usb/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_USB_ATMEL) += at76_usb.o diff --git a/drivers/staging/at76_usb/TODO b/drivers/staging/at76_usb/TODO deleted file mode 100644 index 0c7ed21c3b9..00000000000 --- a/drivers/staging/at76_usb/TODO +++ /dev/null @@ -1,7 +0,0 @@ -Fix the mac80211 port of at76_usb (the proper in-kernel wireless -stack) and get it included to the mainline. Patches available here: - -http://git.kernel.org/?p=linux/kernel/git/linville/wireless-legacy.git;a=shortlog;h=at76 - -Contact Kalle Valo <kalle.valo@iki.fi> and linux-wireless list -<linux-wireless@vger.kernel.org> for more information. diff --git a/drivers/staging/at76_usb/at76_usb.c b/drivers/staging/at76_usb/at76_usb.c deleted file mode 100644 index 4db9b976da9..00000000000 --- a/drivers/staging/at76_usb/at76_usb.c +++ /dev/null @@ -1,5566 +0,0 @@ -/* - * 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> - * - * 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 - */ - -#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 <linux/ieee80211.h> - -#include "at76_usb.h" - -/* Version information */ -#define DRIVER_NAME "at76_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_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) - -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)}, - /* OQO Model 01+ Internal Wi-Fi */ - {USB_DEVICE(0x1557, 0x0002), 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 }; - -/* Frequency of each channel in MHz */ -static const long channel_frequency[] = { - 2412, 2417, 2422, 2427, 2432, 2437, 2442, - 2447, 2452, 2457, 2462, 2467, 2472, 2484 -}; - -#define NUM_CHANNELS ARRAY_SIZE(channel_frequency) - -static const char *const preambles[] = { "long", "short", "auto" }; - -static const char *const mac_states[] = { - [MAC_INIT] = "INIT", - [MAC_SCANNING] = "SCANNING", - [MAC_AUTH] = "AUTH", - [MAC_ASSOC] = "ASSOC", - [MAC_JOINING] = "JOINING", - [MAC_CONNECTED] = "CONNECTED", - [MAC_OWN_IBSS] = "OWN_IBSS" -}; - -/* 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; -} - -/* Report that the scan results are ready */ -static inline void at76_iwevent_scan_complete(struct net_device *netdev) -{ - union iwreq_data wrqu; - wrqu.data.length = 0; - wrqu.data.flags = 0; - wireless_send_event(netdev, SIOCGIWSCAN, &wrqu, NULL); - at76_dbg(DBG_WE_EVENTS, "%s: SIOCGIWSCAN sent", netdev->name); -} - -static inline void at76_iwevent_bss_connect(struct net_device *netdev, - u8 *bssid) -{ - union iwreq_data wrqu; - wrqu.data.length = 0; - wrqu.data.flags = 0; - memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); - at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, - __func__); -} - -static inline void at76_iwevent_bss_disconnect(struct net_device *netdev) -{ - union iwreq_data wrqu; - wrqu.data.length = 0; - wrqu.data.flags = 0; - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); - at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, - __func__); -} - -#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; -} - -/* 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); -} - -/* Check if the given ssid is hidden */ -static inline int at76_is_hidden_ssid(u8 *ssid, int length) -{ - static const u8 zeros[32]; - - if (length == 0) - return 1; - - if (length == 1 && ssid[0] == ' ') - return 1; - - return (memcmp(ssid, zeros, length) == 0); -} - -static inline void at76_free_bss_list(struct at76_priv *priv) -{ - struct list_head *next, *ptr; - unsigned long flags; - - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - - priv->curr_bss = NULL; - - list_for_each_safe(ptr, next, &priv->bss_list) { - list_del(ptr); - kfree(list_entry(ptr, struct bss_info, list)); - } - - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); -} - -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 saved; - u8 *op_mode; - - op_mode = kmalloc(1, GFP_NOIO); - if (!op_mode) - return -ENOMEM; - 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); - saved = *op_mode; - kfree(op_mode); - - if (ret < 0) - return ret; - else if (ret < 1) - return -EIO; - else - return saved; -} - -/* 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", - priv->netdev->name, 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; - int ret; - - stat_buf = kmalloc(40, GFP_NOIO); - if (!stat_buf) - return -ENOMEM; - - ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, - USB_TYPE_VENDOR | USB_DIR_IN | - USB_RECIP_INTERFACE, cmd, 0, stat_buf, - 40, USB_CTRL_GET_TIMEOUT); - if (ret >= 0) - ret = stat_buf[5]; - kfree(stat_buf); - - return ret; -} - -static int at76_set_card_command(struct usb_device *udev, u8 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); - - 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", - priv->netdev->name, status); - break; - } - - at76_dbg(DBG_WAIT_COMPLETE, - "%s: Waiting on cmd %d, status = %d (%s)", - priv->netdev->name, 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", - priv->netdev->name, 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", priv->netdev->name, 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", - priv->netdev->name, 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", - priv->netdev->name, ret); - - return ret; -} - -/* Set the association id for power save mode */ -static int at76_set_associd(struct at76_priv *priv, u16 id) -{ - int ret = 0; - - priv->mib_buf.type = MIB_MAC_MGMT; - priv->mib_buf.size = 2; - priv->mib_buf.index = offsetof(struct mib_mac_mgmt, station_id); - priv->mib_buf.data.word = cpu_to_le16(id); - - ret = at76_set_mib(priv, &priv->mib_buf); - if (ret < 0) - printk(KERN_ERR "%s: set_mib (associd) failed: %d\n", - priv->netdev->name, ret); - - return ret; -} - -/* Set the listen interval for power save mode */ -static int at76_set_listen_interval(struct at76_priv *priv, u16 interval) -{ - int ret = 0; - - priv->mib_buf.type = MIB_MAC; - priv->mib_buf.size = 2; - priv->mib_buf.index = offsetof(struct mib_mac, listen_interval); - priv->mib_buf.data.word = cpu_to_le16(interval); - - ret = at76_set_mib(priv, &priv->mib_buf); - if (ret < 0) - printk(KERN_ERR - "%s: set_mib (listen_interval) failed: %d\n", - priv->netdev->name, 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", - priv->netdev->name, 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", - priv->netdev->name, 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", - priv->netdev->name, 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", - priv->netdev->name, ret); - - return ret; -} - -static int at76_add_mac_address(struct at76_priv *priv, void *addr) -{ - int ret = 0; - - priv->mib_buf.type = MIB_MAC_ADDR; - priv->mib_buf.size = ETH_ALEN; - priv->mib_buf.index = offsetof(struct mib_mac_addr, mac_addr); - memcpy(priv->mib_buf.data.addr, addr, ETH_ALEN); - - ret = at76_set_mib(priv, &priv->mib_buf); - if (ret < 0) - printk(KERN_ERR "%s: set_mib (MAC_ADDR, mac_addr) failed: %d\n", - priv->netdev->name, 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", - priv->netdev->name, ret); - goto exit; - } - - at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x", - priv->netdev->name, 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: %pM, " - "status %d", priv->netdev->name, i, - 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", - priv->netdev->name, 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", priv->netdev->name, - 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", - priv->netdev->name, 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", - priv->netdev->name, 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 %pM scurrent_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", - priv->netdev->name, 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, 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", - priv->netdev->name, 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 %pM desired_bsstype %d", - priv->netdev->name, 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), - 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", - priv->netdev->name, 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", - priv->netdev->name, 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", - priv->netdev->name, 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", priv->netdev->name, 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", - priv->netdev->name, ret); - goto exit; - } - - at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", - priv->netdev->name, - hex2str(m->channel_list, sizeof(m->channel_list))); - - at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", - priv->netdev->name, - hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); -exit: - kfree(m); -} - -static int at76_get_current_bssid(struct at76_priv *priv) -{ - int ret = 0; - struct mib_mac_mgmt *mac_mgmt = - kmalloc(sizeof(struct mib_mac_mgmt), GFP_KERNEL); - - if (!mac_mgmt) { - ret = -ENOMEM; - goto exit; - } - - ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, mac_mgmt, - sizeof(struct mib_mac_mgmt)); - if (ret < 0) { - printk(KERN_ERR "%s: at76_get_mib failed: %d\n", - priv->netdev->name, ret); - goto error; - } - memcpy(priv->bssid, mac_mgmt->current_bssid, ETH_ALEN); - printk(KERN_INFO "%s: using BSSID %pM\n", priv->netdev->name, - priv->bssid); -error: - kfree(mac_mgmt); -exit: - return ret; -} - -static int at76_get_current_channel(struct at76_priv *priv) -{ - int ret = 0; - struct mib_phy *phy = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); - - if (!phy) { - ret = -ENOMEM; - goto exit; - } - ret = at76_get_mib(priv->udev, MIB_PHY, phy, sizeof(struct mib_phy)); - if (ret < 0) { - printk(KERN_ERR "%s: at76_get_mib(MIB_PHY) failed: %d\n", - priv->netdev->name, ret); - goto error; - } - priv->channel = phy->channel_id; -error: - kfree(phy); -exit: - return ret; -} - -/** - * at76_start_scan - start a scan - * - * @use_essid - use the configured ESSID in non passive mode - */ -static int at76_start_scan(struct at76_priv *priv, int use_essid) -{ - struct at76_req_scan scan; - - memset(&scan, 0, sizeof(struct at76_req_scan)); - memset(scan.bssid, 0xff, ETH_ALEN); - - if (use_essid) { - memcpy(scan.essid, priv->essid, IW_ESSID_MAX_SIZE); - scan.essid_size = priv->essid_size; - } else - scan.essid_size = 0; - - /* jal: why should we start at a certain channel? we do scan the whole - range allowed by reg domain. */ - scan.channel = priv->channel; - - /* atmelwlandriver differs between scan type 0 and 1 (active/passive) - For ad-hoc mode, it uses type 0 only. */ - scan.scan_type = priv->scan_mode; - - /* INFO: For probe_delay, not multiplying by 1024 as this will be - slightly less than min_channel_time - (per spec: probe delay < min. channel time) */ - 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; - - /* other values are set to 0 for type 0 */ - - at76_dbg(DBG_PROGRESS, "%s: start_scan (use_essid = %d, intl = %d, " - "channel = %d, probe_delay = %d, scan_min_time = %d, " - "scan_max_time = %d)", - priv->netdev->name, use_essid, - scan.international_scan, scan.channel, - le16_to_cpu(scan.probe_delay), - le16_to_cpu(scan.min_channel_time), - le16_to_cpu(scan.max_channel_time)); - - return at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); -} - -/* 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; -} - -static int at76_start_ibss(struct at76_priv *priv) -{ - struct at76_req_ibss bss; - int ret; - - WARN_ON(priv->mac_state != MAC_OWN_IBSS); - if (priv->mac_state != MAC_OWN_IBSS) - return -EBUSY; - - memset(&bss, 0, sizeof(struct at76_req_ibss)); - memset(bss.bssid, 0xff, ETH_ALEN); - memcpy(bss.essid, priv->essid, IW_ESSID_MAX_SIZE); - bss.essid_size = priv->essid_size; - bss.bss_type = ADHOC_MODE; - bss.channel = priv->channel; - - ret = at76_set_card_command(priv->udev, CMD_START_IBSS, &bss, - sizeof(struct at76_req_ibss)); - if (ret < 0) { - printk(KERN_ERR "%s: start_ibss failed: %d\n", - priv->netdev->name, ret); - return ret; - } - - ret = at76_wait_completion(priv, CMD_START_IBSS); - if (ret != CMD_STATUS_COMPLETE) { - printk(KERN_ERR "%s: start_ibss failed to complete, %d\n", - priv->netdev->name, ret); - return ret; - } - - ret = at76_get_current_bssid(priv); - if (ret < 0) - return ret; - - ret = at76_get_current_channel(priv); - if (ret < 0) - return ret; - - /* not sure what this is good for ??? */ - priv->mib_buf.type = MIB_MAC_MGMT; - priv->mib_buf.size = 1; - priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); - priv->mib_buf.data.byte = 0; - - ret = at76_set_mib(priv, &priv->mib_buf); - if (ret < 0) { - printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", - priv->netdev->name, ret); - return ret; - } - - netif_carrier_on(priv->netdev); - netif_start_queue(priv->netdev); - return 0; -} - -/* Request card to join BSS in managed or ad-hoc mode */ -static int at76_join_bss(struct at76_priv *priv, struct bss_info *ptr) -{ - struct at76_req_join join; - - BUG_ON(!ptr); - - memset(&join, 0, sizeof(struct at76_req_join)); - memcpy(join.bssid, ptr->bssid, ETH_ALEN); - memcpy(join.essid, ptr->ssid, ptr->ssid_len); - join.essid_size = ptr->ssid_len; - join.bss_type = (priv->iw_mode == IW_MODE_ADHOC ? 1 : 2); - join.channel = ptr->channel; - join.timeout = cpu_to_le16(2000); - - at76_dbg(DBG_PROGRESS, - "%s join addr %pM ssid %s stype %d ch %d timeout %d", - priv->netdev->name, join.bssid, join.essid, - join.bss_type, join.channel, le16_to_cpu(join.timeout)); - return at76_set_card_command(priv->udev, CMD_JOIN, &join, - sizeof(struct at76_req_join)); -} - -/* 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; -} - -/* We are doing a lot of things here in an interrupt. Need - a bh handler (Watching TV with a TV card is probably - a good test: if you see flickers, we are doing too much. - Currently I do see flickers... even with our tasklet :-( ) - Maybe because the bttv driver and usb-uhci use the same interrupt -*/ -/* Or maybe because our BH handler is preempting bttv's BH handler.. BHs don't - * solve everything.. (alex) */ -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 void at76_tx_callback(struct urb *urb) -{ - struct at76_priv *priv = urb->context; - struct net_device_stats *stats = &priv->stats; - unsigned long flags; - struct at76_tx_buffer *mgmt_buf; - int ret; - - switch (urb->status) { - case 0: - stats->tx_packets++; - break; - case -ENOENT: - case -ECONNRESET: - /* urb has been unlinked */ - return; - default: - at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", - __func__, urb->status); - stats->tx_errors++; - break; - } - - spin_lock_irqsave(&priv->mgmt_spinlock, flags); - mgmt_buf = priv->next_mgmt_bulk; - priv->next_mgmt_bulk = NULL; - spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); - - if (!mgmt_buf) { - netif_wake_queue(priv->netdev); - return; - } - - /* we don't copy the padding bytes, but add them - to the length */ - memcpy(priv->bulk_out_buffer, mgmt_buf, - le16_to_cpu(mgmt_buf->wlength) + AT76_TX_HDRLEN); - usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, - priv->bulk_out_buffer, - le16_to_cpu(mgmt_buf->wlength) + mgmt_buf->padding + - AT76_TX_HDRLEN, at76_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", - priv->netdev->name, ret); - - kfree(mgmt_buf); -} - -/* Send a management frame on bulk-out. txbuf->wlength must be set */ -static int at76_tx_mgmt(struct at76_priv *priv, struct at76_tx_buffer *txbuf) -{ - unsigned long flags; - int ret; - int urb_status; - void *oldbuf = NULL; - - netif_carrier_off(priv->netdev); /* stop netdev watchdog */ - netif_stop_queue(priv->netdev); /* stop tx data packets */ - - spin_lock_irqsave(&priv->mgmt_spinlock, flags); - - urb_status = priv->tx_urb->status; - if (urb_status == -EINPROGRESS) { - /* cannot transmit now, put in the queue */ - oldbuf = priv->next_mgmt_bulk; - priv->next_mgmt_bulk = txbuf; - } - spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); - - if (oldbuf) { - /* a data/mgmt tx is already pending in the URB - - if this is no error in some situations we must - implement a queue or silently modify the old msg */ - printk(KERN_ERR "%s: removed pending mgmt buffer %s\n", - priv->netdev->name, hex2str(oldbuf, 64)); - kfree(oldbuf); - return 0; - } - - txbuf->tx_rate = TX_RATE_1MBIT; - txbuf->padding = at76_calc_padding(le16_to_cpu(txbuf->wlength)); - memset(txbuf->reserved, 0, sizeof(txbuf->reserved)); - - if (priv->next_mgmt_bulk) - printk(KERN_ERR "%s: URB status %d, but mgmt is pending\n", - priv->netdev->name, urb_status); - - at76_dbg(DBG_TX_MGMT, - "%s: tx mgmt: wlen %d tx_rate %d pad %d %s", - priv->netdev->name, le16_to_cpu(txbuf->wlength), - txbuf->tx_rate, txbuf->padding, - hex2str(txbuf->packet, le16_to_cpu(txbuf->wlength))); - - /* txbuf was not consumed above -> send mgmt msg immediately */ - memcpy(priv->bulk_out_buffer, txbuf, - le16_to_cpu(txbuf->wlength) + AT76_TX_HDRLEN); - usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, - priv->bulk_out_buffer, - le16_to_cpu(txbuf->wlength) + txbuf->padding + - AT76_TX_HDRLEN, at76_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", - priv->netdev->name, ret); - - kfree(txbuf); - - return ret; -} - -/* Go to the next information element */ -static inline void next_ie(struct ieee80211_info_element **ie) -{ - *ie = (struct ieee80211_info_element *)(&(*ie)->data[(*ie)->len]); -} - -/* Challenge is the challenge string (in TLV format) - we got with seq_nr 2 for shared secret authentication only and - send in seq_nr 3 WEP encrypted to prove we have the correct WEP key; - otherwise it is NULL */ -static int at76_auth_req(struct at76_priv *priv, struct bss_info *bss, - int seq_nr, struct ieee80211_info_element *challenge) -{ - struct at76_tx_buffer *tx_buffer; - struct ieee80211_hdr_3addr *mgmt; - struct ieee80211_auth *req; - int buf_len = (seq_nr != 3 ? AUTH_FRAME_SIZE : - AUTH_FRAME_SIZE + 1 + 1 + challenge->len); - - BUG_ON(!bss); - BUG_ON(seq_nr == 3 && !challenge); - tx_buffer = kmalloc(buf_len + MAX_PADDING_SIZE, GFP_ATOMIC); - if (!tx_buffer) - return -ENOMEM; - - req = (struct ieee80211_auth *)tx_buffer->packet; - mgmt = &req->header; - - /* make wireless header */ - /* first auth msg is not encrypted, only the second (seq_nr == 3) */ - mgmt->frame_ctl = - cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH | - (seq_nr == 3 ? IEEE80211_FCTL_PROTECTED : 0)); - - mgmt->duration_id = cpu_to_le16(0x8000); - memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); - memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); - memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); - mgmt->seq_ctl = cpu_to_le16(0); - - req->algorithm = cpu_to_le16(priv->auth_mode); - req->transaction = cpu_to_le16(seq_nr); - req->status = cpu_to_le16(0); - - if (seq_nr == 3) - memcpy(req->info_element, challenge, 1 + 1 + challenge->len); - - /* init. at76_priv tx header */ - tx_buffer->wlength = cpu_to_le16(buf_len - AT76_TX_HDRLEN); - at76_dbg(DBG_TX_MGMT, "%s: AuthReq bssid %pM alg %d seq_nr %d", - priv->netdev->name, mgmt->addr3, - le16_to_cpu(req->algorithm), le16_to_cpu(req->transaction)); - if (seq_nr == 3) - at76_dbg(DBG_TX_MGMT, "%s: AuthReq challenge: %s ...", - priv->netdev->name, hex2str(req->info_element, 18)); - - /* either send immediately (if no data tx is pending - or put it in pending list */ - return at76_tx_mgmt(priv, tx_buffer); -} - -static int at76_assoc_req(struct at76_priv *priv, struct bss_info *bss) -{ - struct at76_tx_buffer *tx_buffer; - struct ieee80211_hdr_3addr *mgmt; - struct ieee80211_assoc_request *req; - struct ieee80211_info_element *ie; - char *essid; - int essid_len; - u16 capa; - - BUG_ON(!bss); - - tx_buffer = kmalloc(ASSOCREQ_MAX_SIZE + MAX_PADDING_SIZE, GFP_ATOMIC); - if (!tx_buffer) - return -ENOMEM; - - req = (struct ieee80211_assoc_request *)tx_buffer->packet; - mgmt = &req->header; - ie = req->info_element; - - /* make wireless header */ - mgmt->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | - IEEE80211_STYPE_ASSOC_REQ); - - mgmt->duration_id = cpu_to_le16(0x8000); - memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); - memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); - memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); - mgmt->seq_ctl = cpu_to_le16(0); - - /* we must set the Privacy bit in the capabilities to assure an - Agere-based AP with optional WEP transmits encrypted frames - to us. AP only set the Privacy bit in their capabilities - if WEP is mandatory in the BSS! */ - capa = bss->capa; - if (priv->wep_enabled) - capa |= WLAN_CAPABILITY_PRIVACY; - if (priv->preamble_type != PREAMBLE_TYPE_LONG) - capa |= WLAN_CAPABILITY_SHORT_PREAMBLE; - req->capability = cpu_to_le16(capa); - - req->listen_interval = cpu_to_le16(2 * bss->beacon_interval); - - /* write TLV data elements */ - - ie->id = WLAN_EID_SSID; - ie->len = bss->ssid_len; - memcpy(ie->data, bss->ssid, bss->ssid_len); - next_ie(&ie); - - ie->id = WLAN_EID_SUPP_RATES; - ie->len = sizeof(hw_rates); - memcpy(ie->data, hw_rates, sizeof(hw_rates)); - next_ie(&ie); /* ie points behind the supp_rates field */ - - /* init. at76_priv tx header */ - tx_buffer->wlength = cpu_to_le16((u8 *)ie - (u8 *)mgmt); - - ie = req->info_element; - essid = ie->data; - essid_len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); - - next_ie(&ie); /* points to IE of rates now */ - at76_dbg(DBG_TX_MGMT, - "%s: AssocReq bssid %pM capa 0x%04x ssid %.*s rates %s", - priv->netdev->name, mgmt->addr3, - le16_to_cpu(req->capability), essid_len, essid, - hex2str(ie->data, ie->len)); - - /* either send immediately (if no data tx is pending - or put it in pending list */ - return at76_tx_mgmt(priv, tx_buffer); -} - -/* We got to check the bss_list for old entries */ -static void at76_bss_list_timeout(unsigned long par) -{ - struct at76_priv *priv = (struct at76_priv *)par; - unsigned long flags; - struct list_head *lptr, *nptr; - struct bss_info *ptr; - - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - - list_for_each_safe(lptr, nptr, &priv->bss_list) { - - ptr = list_entry(lptr, struct bss_info, list); - - if (ptr != priv->curr_bss - && time_after(jiffies, ptr->last_rx + BSS_LIST_TIMEOUT)) { - at76_dbg(DBG_BSS_TABLE_RM, - "%s: bss_list: removing old BSS %pM ch %d", - priv->netdev->name, ptr->bssid, - ptr->channel); - list_del(&ptr->list); - kfree(ptr); - } - } - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); - /* restart the timer */ - mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); -} - -static inline void at76_set_mac_state(struct at76_priv *priv, - enum mac_state mac_state) -{ - at76_dbg(DBG_MAC_STATE, "%s state: %s", priv->netdev->name, - mac_states[mac_state]); - priv->mac_state = mac_state; -} - -static void at76_dump_bss_table(struct at76_priv *priv) -{ - struct bss_info *ptr; - unsigned long flags; - struct list_head *lptr; - - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - - at76_dbg(DBG_BSS_TABLE, "%s BSS table (curr=%p):", priv->netdev->name, - priv->curr_bss); - - list_for_each(lptr, &priv->bss_list) { - ptr = list_entry(lptr, struct bss_info, list); - at76_dbg(DBG_BSS_TABLE, "0x%p: bssid %pM channel %d ssid %.*s " - "(%s) capa 0x%04x rates %s rssi %d link %d noise %d", - ptr, ptr->bssid, ptr->channel, ptr->ssid_len, - ptr->ssid, hex2str(ptr->ssid, ptr->ssid_len), - ptr->capa, hex2str(ptr->rates, ptr->rates_len), - ptr->rssi, ptr->link_qual, ptr->noise_level); - } - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); -} - -/* Called upon successful association to mark interface as connected */ -static void at76_work_assoc_done(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - work_assoc_done); - - mutex_lock(&priv->mtx); - - WARN_ON(priv->mac_state != MAC_ASSOC); - WARN_ON(!priv->curr_bss); - if (priv->mac_state != MAC_ASSOC || !priv->curr_bss) - goto exit; - - if (priv->iw_mode == IW_MODE_INFRA) { - if (priv->pm_mode != AT76_PM_OFF) { - /* calculate the listen interval in units of - beacon intervals of the curr_bss */ - u32 pm_period_beacon = (priv->pm_period >> 10) / - priv->curr_bss->beacon_interval; - - pm_period_beacon = max(pm_period_beacon, 2u); - pm_period_beacon = min(pm_period_beacon, 0xffffu); - - at76_dbg(DBG_PM, - "%s: pm_mode %d assoc id 0x%x listen int %d", - priv->netdev->name, priv->pm_mode, - priv->assoc_id, pm_period_beacon); - - at76_set_associd(priv, priv->assoc_id); - at76_set_listen_interval(priv, (u16)pm_period_beacon); - } - schedule_delayed_work(&priv->dwork_beacon, BEACON_TIMEOUT); - } - at76_set_pm_mode(priv); - - netif_carrier_on(priv->netdev); - netif_wake_queue(priv->netdev); - at76_set_mac_state(priv, MAC_CONNECTED); - at76_iwevent_bss_connect(priv->netdev, priv->curr_bss->bssid); - at76_dbg(DBG_PROGRESS, "%s: connected to BSSID %pM", - priv->netdev->name, priv->curr_bss->bssid); - -exit: - mutex_unlock(&priv->mtx); -} - -/* We only store the new mac address in netdev struct, - it gets set when the netdev is opened. */ -static int at76_set_mac_address(struct net_device *netdev, void *addr) -{ - struct sockaddr *mac = addr; - memcpy(netdev->dev_addr, mac->sa_data, ETH_ALEN); - return 1; -} - -static struct net_device_stats *at76_get_stats(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - return &priv->stats; -} - -static struct iw_statistics *at76_get_wireless_stats(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "RETURN qual %d level %d noise %d updated %d", - priv->wstats.qual.qual, priv->wstats.qual.level, - priv->wstats.qual.noise, priv->wstats.qual.updated); - - return &priv->wstats; -} - -static void at76_set_multicast(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - int promisc; - - promisc = ((netdev->flags & IFF_PROMISC) != 0); - if (promisc != priv->promisc) { - /* This gets called in interrupt, must reschedule */ - priv->promisc = promisc; - schedule_work(&priv->work_set_promisc); - } -} - -/* Stop all network activity, flush all pending tasks */ -static void at76_quiesce(struct at76_priv *priv) -{ - unsigned long flags; - - netif_stop_queue(priv->netdev); - netif_carrier_off(priv->netdev); - - at76_set_mac_state(priv, MAC_INIT); - - cancel_delayed_work(&priv->dwork_get_scan); - cancel_delayed_work(&priv->dwork_beacon); - cancel_delayed_work(&priv->dwork_auth); - cancel_delayed_work(&priv->dwork_assoc); - cancel_delayed_work(&priv->dwork_restart); - - spin_lock_irqsave(&priv->mgmt_spinlock, flags); - kfree(priv->next_mgmt_bulk); - priv->next_mgmt_bulk = NULL; - spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); -} - -/******************************************************************************* - * at76_priv implementations of iw_handler functions: - */ -static int at76_iw_handler_commit(struct net_device *netdev, - struct iw_request_info *info, - void *null, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "%s %s: restarting the device", netdev->name, - __func__); - - if (priv->mac_state != MAC_INIT) - at76_quiesce(priv); - - /* Wait half second before the restart to process subsequent - * requests from the same iwconfig in a single restart */ - schedule_delayed_work(&priv->dwork_restart, HZ / 2); - - return 0; -} - -static int at76_iw_handler_get_name(struct net_device *netdev, - struct iw_request_info *info, - char *name, char *extra) -{ - strcpy(name, "IEEE 802.11b"); - at76_dbg(DBG_IOCTL, "%s: SIOCGIWNAME - name %s", netdev->name, name); - return 0; -} - -static int at76_iw_handler_set_freq(struct net_device *netdev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int chan = -1; - int ret = -EIWCOMMIT; - at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - freq.m %d freq.e %d", - netdev->name, freq->m, freq->e); - - if ((freq->e == 0) && (freq->m <= 1000)) - /* Setting by channel number */ - chan = freq->m; - else { - /* Setting by frequency - search the table */ - int mult = 1; - int i; - - for (i = 0; i < (6 - freq->e); i++) - mult *= 10; - - for (i = 0; i < NUM_CHANNELS; i++) { - if (freq->m == (channel_frequency[i] * mult)) - chan = i + 1; - } - } - - if (chan < 1 || !priv->domain) - /* non-positive channels are invalid - * we need a domain info to set the channel - * either that or an invalid frequency was - * provided by the user */ - ret = -EINVAL; - else if (!(priv->domain->channel_map & (1 << (chan - 1)))) { - printk(KERN_INFO "%s: channel %d not allowed for domain %s\n", - priv->netdev->name, chan, priv->domain->name); - ret = -EINVAL; - } - - if (ret == -EIWCOMMIT) { - priv->channel = chan; - at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - ch %d", netdev->name, - chan); - } - - return ret; -} - -static int at76_iw_handler_get_freq(struct net_device *netdev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - freq->m = priv->channel; - freq->e = 0; - - if (priv->channel) - at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - freq %ld x 10e%d", - netdev->name, channel_frequency[priv->channel - 1], 6); - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - ch %d", netdev->name, - priv->channel); - - return 0; -} - -static int at76_iw_handler_set_mode(struct net_device *netdev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWMODE - %d", netdev->name, *mode); - - if ((*mode != IW_MODE_ADHOC) && (*mode != IW_MODE_INFRA) && - (*mode != IW_MODE_MONITOR)) - return -EINVAL; - - priv->iw_mode = *mode; - if (priv->iw_mode != IW_MODE_INFRA) - priv->pm_mode = AT76_PM_OFF; - - return -EIWCOMMIT; -} - -static int at76_iw_handler_get_mode(struct net_device *netdev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - *mode = priv->iw_mode; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWMODE - %d", netdev->name, *mode); - - return 0; -} - -static int at76_iw_handler_get_range(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - /* inspired by atmel.c */ - struct at76_priv *priv = netdev_priv(netdev); - struct iw_range *range = (struct iw_range *)extra; - int i; - - data->length = sizeof(struct iw_range); - memset(range, 0, sizeof(struct iw_range)); - - /* TODO: range->throughput = xxxxxx; */ - - range->min_nwid = 0x0000; - range->max_nwid = 0x0000; - - /* this driver doesn't maintain sensitivity information */ - range->sensitivity = 0; - - range->max_qual.qual = 100; - range->max_qual.level = 100; - range->max_qual.noise = 0; - range->max_qual.updated = IW_QUAL_NOISE_INVALID; - - range->avg_qual.qual = 50; - range->avg_qual.level = 50; - range->avg_qual.noise = 0; - range->avg_qual.updated = IW_QUAL_NOISE_INVALID; - - range->bitrate[0] = 1000000; - range->bitrate[1] = 2000000; - range->bitrate[2] = 5500000; - range->bitrate[3] = 11000000; - range->num_bitrates = 4; - - range->min_rts = 0; - range->max_rts = MAX_RTS_THRESHOLD; - - range->min_frag = MIN_FRAG_THRESHOLD; - range->max_frag = MAX_FRAG_THRESHOLD; - - range->pmp_flags = IW_POWER_PERIOD; - range->pmt_flags = IW_POWER_ON; - range->pm_capa = IW_POWER_PERIOD | IW_POWER_ALL_R; - - range->encoding_size[0] = WEP_SMALL_KEY_LEN; - range->encoding_size[1] = WEP_LARGE_KEY_LEN; - range->num_encoding_sizes = 2; - range->max_encoding_tokens = WEP_KEYS; - - /* both WL-240U and Linksys WUSB11 v2.6 specify 15 dBm as output power - - take this for all (ignore antenna gains) */ - range->txpower[0] = 15; - range->num_txpower = 1; - range->txpower_capa = IW_TXPOW_DBM; - - range->we_version_source = WIRELESS_EXT; - range->we_version_compiled = WIRELESS_EXT; - - /* same as the values used in atmel.c */ - range->retry_capa = IW_RETRY_LIMIT; - range->retry_flags = IW_RETRY_LIMIT; - range->r_time_flags = 0; - range->min_retry = 1; - range->max_retry = 255; - - range->num_channels = NUM_CHANNELS; - range->num_frequency = 0; - - for (i = 0; i < NUM_CHANNELS; i++) { - /* test if channel map bit is raised */ - if (priv->domain->channel_map & (0x1 << i)) { - range->num_frequency += 1; - - range->freq[i].i = i + 1; - range->freq[i].m = channel_frequency[i] * 100000; - range->freq[i].e = 1; /* freq * 10^1 */ - } - } - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWRANGE", netdev->name); - - return 0; -} - -static int at76_iw_handler_set_spy(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = 0; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWSPY - number of addresses %d", - netdev->name, data->length); - - spin_lock_bh(&priv->spy_spinlock); - ret = iw_handler_set_spy(priv->netdev, info, (union iwreq_data *)data, - extra); - spin_unlock_bh(&priv->spy_spinlock); - - return ret; -} - -static int at76_iw_handler_get_spy(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - - struct at76_priv *priv = netdev_priv(netdev); - int ret = 0; - - spin_lock_bh(&priv->spy_spinlock); - ret = iw_handler_get_spy(priv->netdev, info, - (union iwreq_data *)data, extra); - spin_unlock_bh(&priv->spy_spinlock); - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWSPY - number of addresses %d", - netdev->name, data->length); - - return ret; -} - -static int at76_iw_handler_set_thrspy(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWTHRSPY - number of addresses %d)", - netdev->name, data->length); - - spin_lock_bh(&priv->spy_spinlock); - ret = iw_handler_set_thrspy(netdev, info, (union iwreq_data *)data, - extra); - spin_unlock_bh(&priv->spy_spinlock); - - return ret; -} - -static int at76_iw_handler_get_thrspy(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret; - - spin_lock_bh(&priv->spy_spinlock); - ret = iw_handler_get_thrspy(netdev, info, (union iwreq_data *)data, - extra); - spin_unlock_bh(&priv->spy_spinlock); - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWTHRSPY - number of addresses %d)", - netdev->name, data->length); - - return ret; -} - -static int at76_iw_handler_set_wap(struct net_device *netdev, - struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWAP - wap/bssid %pM", netdev->name, - ap_addr->sa_data); - - /* if the incoming address == ff:ff:ff:ff:ff:ff, the user has - chosen any or auto AP preference */ - if (is_broadcast_ether_addr(ap_addr->sa_data) - || is_zero_ether_addr(ap_addr->sa_data)) - priv->wanted_bssid_valid = 0; - else { - /* user wants to set a preferred AP address */ - priv->wanted_bssid_valid = 1; - memcpy(priv->wanted_bssid, ap_addr->sa_data, ETH_ALEN); - } - - return -EIWCOMMIT; -} - -static int at76_iw_handler_get_wap(struct net_device *netdev, - struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - ap_addr->sa_family = ARPHRD_ETHER; - memcpy(ap_addr->sa_data, priv->bssid, ETH_ALEN); - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWAP - wap/bssid %pM", netdev->name, - ap_addr->sa_data); - - return 0; -} - -static int at76_iw_handler_set_scan(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = 0; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWSCAN", netdev->name); - - if (mutex_lock_interruptible(&priv->mtx)) - return -EINTR; - - if (!netif_running(netdev)) { - ret = -ENETDOWN; - goto exit; - } - - /* jal: we don't allow "iwlist ethX scan" while we are - in monitor mode */ - if (priv->iw_mode == IW_MODE_MONITOR) { - ret = -EBUSY; - goto exit; - } - - /* Discard old scan results */ - if ((jiffies - priv->last_scan) > (20 * HZ)) - priv->scan_state = SCAN_IDLE; - priv->last_scan = jiffies; - - /* Initiate a scan command */ - if (priv->scan_state == SCAN_IN_PROGRESS) { - ret = -EBUSY; - goto exit; - } - - priv->scan_state = SCAN_IN_PROGRESS; - - at76_quiesce(priv); - - /* Try to do passive or active scan if WE asks as. */ - if (wrqu->data.length - && wrqu->data.length == sizeof(struct iw_scan_req)) { - struct iw_scan_req *req = (struct iw_scan_req *)extra; - - if (req->scan_type == IW_SCAN_TYPE_PASSIVE) - priv->scan_mode = SCAN_TYPE_PASSIVE; - else if (req->scan_type == IW_SCAN_TYPE_ACTIVE) - priv->scan_mode = SCAN_TYPE_ACTIVE; - - /* Sanity check values? */ - if (req->min_channel_time > 0) - priv->scan_min_time = req->min_channel_time; - - if (req->max_channel_time > 0) - priv->scan_max_time = req->max_channel_time; - } - - /* change to scanning state */ - at76_set_mac_state(priv, MAC_SCANNING); - schedule_work(&priv->work_start_scan); - -exit: - mutex_unlock(&priv->mtx); - return ret; -} - -static int at76_iw_handler_get_scan(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - unsigned long flags; - struct list_head *lptr, *nptr; - struct bss_info *curr_bss; - struct iw_event *iwe = kmalloc(sizeof(struct iw_event), GFP_KERNEL); - char *curr_val, *curr_pos = extra; - int i; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWSCAN", netdev->name); - - if (!iwe) - return -ENOMEM; - - if (priv->scan_state != SCAN_COMPLETED) { - /* scan not yet finished */ - kfree(iwe); - return -EAGAIN; - } - - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - - list_for_each_safe(lptr, nptr, &priv->bss_list) { - curr_bss = list_entry(lptr, struct bss_info, list); - - iwe->cmd = SIOCGIWAP; - iwe->u.ap_addr.sa_family = ARPHRD_ETHER; - memcpy(iwe->u.ap_addr.sa_data, curr_bss->bssid, 6); - curr_pos = iwe_stream_add_event(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - IW_EV_ADDR_LEN); - - iwe->u.data.length = curr_bss->ssid_len; - iwe->cmd = SIOCGIWESSID; - iwe->u.data.flags = 1; - - curr_pos = iwe_stream_add_point(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - curr_bss->ssid); - - iwe->cmd = SIOCGIWMODE; - iwe->u.mode = (curr_bss->capa & WLAN_CAPABILITY_IBSS) ? - IW_MODE_ADHOC : - (curr_bss->capa & WLAN_CAPABILITY_ESS) ? - IW_MODE_MASTER : IW_MODE_AUTO; - /* IW_MODE_AUTO = 0 which I thought is - * the most logical value to return in this case */ - curr_pos = iwe_stream_add_event(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - IW_EV_UINT_LEN); - - iwe->cmd = SIOCGIWFREQ; - iwe->u.freq.m = curr_bss->channel; - iwe->u.freq.e = 0; - curr_pos = iwe_stream_add_event(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - IW_EV_FREQ_LEN); - - iwe->cmd = SIOCGIWENCODE; - if (curr_bss->capa & WLAN_CAPABILITY_PRIVACY) - iwe->u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; - else - iwe->u.data.flags = IW_ENCODE_DISABLED; - - iwe->u.data.length = 0; - curr_pos = iwe_stream_add_point(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - NULL); - - /* Add quality statistics */ - iwe->cmd = IWEVQUAL; - iwe->u.qual.noise = 0; - iwe->u.qual.updated = - IW_QUAL_NOISE_INVALID | IW_QUAL_LEVEL_UPDATED; - iwe->u.qual.level = (curr_bss->rssi * 100 / 42); - if (iwe->u.qual.level > 100) - iwe->u.qual.level = 100; - if (at76_is_intersil(priv->board_type)) - iwe->u.qual.qual = curr_bss->link_qual; - else { - iwe->u.qual.qual = 0; - iwe->u.qual.updated |= IW_QUAL_QUAL_INVALID; - } - /* Add new value to event */ - curr_pos = iwe_stream_add_event(info, curr_pos, - extra + IW_SCAN_MAX_DATA, iwe, - IW_EV_QUAL_LEN); - - /* Rate: stuffing multiple values in a single event requires - * a bit more of magic - Jean II */ - curr_val = curr_pos + IW_EV_LCP_LEN; - - iwe->cmd = SIOCGIWRATE; - /* Those two flags are ignored... */ - iwe->u.bitrate.fixed = 0; - iwe->u.bitrate.disabled = 0; - /* Max 8 values */ - for (i = 0; i < curr_bss->rates_len; i++) { - /* Bit rate given in 500 kb/s units (+ 0x80) */ - iwe->u.bitrate.value = - ((curr_bss->rates[i] & 0x7f) * 500000); - /* Add new value to event */ - curr_val = iwe_stream_add_value(info, curr_pos, - curr_val, - extra + - IW_SCAN_MAX_DATA, iwe, - IW_EV_PARAM_LEN); - } - - /* Check if we added any event */ - if ((curr_val - curr_pos) > IW_EV_LCP_LEN) - curr_pos = curr_val; - - /* more information may be sent back using IWECUSTOM */ - - } - - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); - - data->length = (curr_pos - extra); - data->flags = 0; - - kfree(iwe); - return 0; -} - -static int at76_iw_handler_set_essid(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWESSID - %s", netdev->name, extra); - - if (data->flags) { - memcpy(priv->essid, extra, data->length); - priv->essid_size = data->length; - } else - priv->essid_size = 0; /* Use any SSID */ - - return -EIWCOMMIT; -} - -static int at76_iw_handler_get_essid(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - if (priv->essid_size) { - /* not the ANY ssid in priv->essid */ - data->flags = 1; - data->length = priv->essid_size; - memcpy(extra, priv->essid, data->length); - } else { - /* the ANY ssid was specified */ - if (priv->mac_state == MAC_CONNECTED && priv->curr_bss) { - /* report the SSID we have found */ - data->flags = 1; - data->length = priv->curr_bss->ssid_len; - memcpy(extra, priv->curr_bss->ssid, data->length); - } else { - /* report ANY back */ - data->flags = 0; - data->length = 0; - } - } - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWESSID - %.*s", netdev->name, - data->length, extra); - - return 0; -} - -static int at76_iw_handler_set_rate(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *bitrate, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWRATE - %d", netdev->name, - bitrate->value); - - switch (bitrate->value) { - case -1: - priv->txrate = TX_RATE_AUTO; - break; /* auto rate */ - case 1000000: - priv->txrate = TX_RATE_1MBIT; - break; - case 2000000: - priv->txrate = TX_RATE_2MBIT; - break; - case 5500000: - priv->txrate = TX_RATE_5_5MBIT; - break; - case 11000000: - priv->txrate = TX_RATE_11MBIT; - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static int at76_iw_handler_get_rate(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *bitrate, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = 0; - - switch (priv->txrate) { - /* return max rate if RATE_AUTO */ - case TX_RATE_AUTO: - bitrate->value = 11000000; - break; - case TX_RATE_1MBIT: - bitrate->value = 1000000; - break; - case TX_RATE_2MBIT: - bitrate->value = 2000000; - break; - case TX_RATE_5_5MBIT: - bitrate->value = 5500000; - break; - case TX_RATE_11MBIT: - bitrate->value = 11000000; - break; - default: - ret = -EINVAL; - } - - bitrate->fixed = (priv->txrate != TX_RATE_AUTO); - bitrate->disabled = 0; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWRATE - %d", netdev->name, - bitrate->value); - - return ret; -} - -static int at76_iw_handler_set_rts(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *rts, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = -EIWCOMMIT; - int rthr = rts->value; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWRTS - value %d disabled %s", - netdev->name, rts->value, (rts->disabled) ? "true" : "false"); - - if (rts->disabled) - rthr = MAX_RTS_THRESHOLD; - - if ((rthr < 0) || (rthr > MAX_RTS_THRESHOLD)) - ret = -EINVAL; - else - priv->rts_threshold = rthr; - - return ret; -} - -static int at76_iw_handler_get_rts(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *rts, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - rts->value = priv->rts_threshold; - rts->disabled = (rts->value >= MAX_RTS_THRESHOLD); - rts->fixed = 1; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWRTS - value %d disabled %s", - netdev->name, rts->value, (rts->disabled) ? "true" : "false"); - - return 0; -} - -static int at76_iw_handler_set_frag(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *frag, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = -EIWCOMMIT; - int fthr = frag->value; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWFRAG - value %d, disabled %s", - netdev->name, frag->value, - (frag->disabled) ? "true" : "false"); - - if (frag->disabled) - fthr = MAX_FRAG_THRESHOLD; - - if ((fthr < MIN_FRAG_THRESHOLD) || (fthr > MAX_FRAG_THRESHOLD)) - ret = -EINVAL; - else - priv->frag_threshold = fthr & ~0x1; /* get an even value */ - - return ret; -} - -static int at76_iw_handler_get_frag(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *frag, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - frag->value = priv->frag_threshold; - frag->disabled = (frag->value >= MAX_FRAG_THRESHOLD); - frag->fixed = 1; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWFRAG - value %d, disabled %s", - netdev->name, frag->value, - (frag->disabled) ? "true" : "false"); - - return 0; -} - -static int at76_iw_handler_get_txpow(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *power, char *extra) -{ - power->value = 15; - power->fixed = 1; /* No power control */ - power->disabled = 0; - power->flags = IW_TXPOW_DBM; - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWTXPOW - txpow %d dBm", netdev->name, - power->value); - - return 0; -} - -/* jal: short retry is handled by the firmware (at least 0.90.x), - while long retry is not (?) */ -static int at76_iw_handler_set_retry(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *retry, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWRETRY disabled %d flags 0x%x val %d", - netdev->name, retry->disabled, retry->flags, retry->value); - - if (!retry->disabled && (retry->flags & IW_RETRY_LIMIT)) { - if ((retry->flags & IW_RETRY_MIN) || - !(retry->flags & IW_RETRY_MAX)) - priv->short_retry_limit = retry->value; - else - ret = -EINVAL; - } else - ret = -EINVAL; - - return ret; -} - -/* Adapted (ripped) from atmel.c */ -static int at76_iw_handler_get_retry(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *retry, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWRETRY", netdev->name); - - retry->disabled = 0; /* Can't be disabled */ - retry->flags = IW_RETRY_LIMIT; - retry->value = priv->short_retry_limit; - - return 0; -} - -static int at76_iw_handler_set_encode(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *encoding, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int index = (encoding->flags & IW_ENCODE_INDEX) - 1; - int len = encoding->length; - - at76_dbg(DBG_IOCTL, "%s: SIOCSIWENCODE - enc.flags %08x " - "pointer %p len %d", netdev->name, encoding->flags, - encoding->pointer, encoding->length); - at76_dbg(DBG_IOCTL, - "%s: SIOCSIWENCODE - old wepstate: enabled %s key_id %d " - "auth_mode %s", netdev->name, - (priv->wep_enabled) ? "true" : "false", priv->wep_key_id, - (priv->auth_mode == - WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); - - /* take the old default key if index is invalid */ - if ((index < 0) || (index >= WEP_KEYS)) - index = priv->wep_key_id; - - if (len > 0) { - if (len > WEP_LARGE_KEY_LEN) - len = WEP_LARGE_KEY_LEN; - - memset(priv->wep_keys[index], 0, WEP_KEY_LEN); - memcpy(priv->wep_keys[index], extra, len); - priv->wep_keys_len[index] = (len <= WEP_SMALL_KEY_LEN) ? - WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; - priv->wep_enabled = 1; - } - - priv->wep_key_id = index; - priv->wep_enabled = ((encoding->flags & IW_ENCODE_DISABLED) == 0); - - if (encoding->flags & IW_ENCODE_RESTRICTED) - priv->auth_mode = WLAN_AUTH_SHARED_KEY; - if (encoding->flags & IW_ENCODE_OPEN) - priv->auth_mode = WLAN_AUTH_OPEN; - - at76_dbg(DBG_IOCTL, - "%s: SIOCSIWENCODE - new wepstate: enabled %s key_id %d " - "key_len %d auth_mode %s", netdev->name, - (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, - priv->wep_keys_len[priv->wep_key_id], - (priv->auth_mode == - WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); - - return -EIWCOMMIT; -} - -static int at76_iw_handler_get_encode(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *encoding, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int index = (encoding->flags & IW_ENCODE_INDEX) - 1; - - if ((index < 0) || (index >= WEP_KEYS)) - index = priv->wep_key_id; - - encoding->flags = - (priv->auth_mode == WLAN_AUTH_SHARED_KEY) ? - IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN; - - if (!priv->wep_enabled) - encoding->flags |= IW_ENCODE_DISABLED; - - if (encoding->pointer) { - encoding->length = priv->wep_keys_len[index]; - - memcpy(extra, priv->wep_keys[index], priv->wep_keys_len[index]); - - encoding->flags |= (index + 1); - } - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWENCODE - enc.flags %08x " - "pointer %p len %d", netdev->name, encoding->flags, - encoding->pointer, encoding->length); - at76_dbg(DBG_IOCTL, - "%s: SIOCGIWENCODE - wepstate: enabled %s key_id %d " - "key_len %d auth_mode %s", netdev->name, - (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, - priv->wep_keys_len[priv->wep_key_id], - (priv->auth_mode == - WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); - - return 0; -} - -static int at76_iw_handler_set_power(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *prq, char *extra) -{ - int err = -EIWCOMMIT; - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_IOCTL, - "%s: SIOCSIWPOWER - disabled %s flags 0x%x value 0x%x", - netdev->name, (prq->disabled) ? "true" : "false", prq->flags, - prq->value); - - if (prq->disabled) - priv->pm_mode = AT76_PM_OFF; - else { - switch (prq->flags & IW_POWER_MODE) { - case IW_POWER_ALL_R: - case IW_POWER_ON: - break; - default: - err = -EINVAL; - goto exit; - } - if (prq->flags & IW_POWER_PERIOD) - priv->pm_period = prq->value; - - if (prq->flags & IW_POWER_TIMEOUT) { - err = -EINVAL; - goto exit; - } - priv->pm_mode = AT76_PM_ON; - } -exit: - return err; -} - -static int at76_iw_handler_get_power(struct net_device *netdev, - struct iw_request_info *info, - struct iw_param *power, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - power->disabled = (priv->pm_mode == AT76_PM_OFF); - if (!power->disabled) { - power->flags = IW_POWER_PERIOD | IW_POWER_ALL_R; - power->value = priv->pm_period; - } - - at76_dbg(DBG_IOCTL, "%s: SIOCGIWPOWER - %s flags 0x%x value 0x%x", - netdev->name, power->disabled ? "disabled" : "enabled", - power->flags, power->value); - - return 0; -} - -/******************************************************************************* - * Private IOCTLS - */ -static int at76_iw_set_short_preamble(struct net_device *netdev, - struct iw_request_info *info, char *name, - char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int val = *((int *)name); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_SHORT_PREAMBLE, %d", - netdev->name, val); - - if (val < PREAMBLE_TYPE_LONG || val > PREAMBLE_TYPE_AUTO) - ret = -EINVAL; - else - priv->preamble_type = val; - - return ret; -} - -static int at76_iw_get_short_preamble(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - - snprintf(wrqu->name, sizeof(wrqu->name), "%s (%d)", - preambles[priv->preamble_type], priv->preamble_type); - return 0; -} - -static int at76_iw_set_debug(struct net_device *netdev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - char *ptr; - u32 val; - - if (data->length > 0) { - val = simple_strtol(extra, &ptr, 0); - - if (ptr == extra) - val = DBG_DEFAULTS; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG input %d: %s -> 0x%x", - netdev->name, data->length, extra, val); - } else - val = DBG_DEFAULTS; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG, old 0x%x, new 0x%x", - netdev->name, at76_debug, val); - - /* jal: some more output to pin down lockups */ - at76_dbg(DBG_IOCTL, "%s: netif running %d queue_stopped %d " - "carrier_ok %d", netdev->name, netif_running(netdev), - netif_queue_stopped(netdev), netif_carrier_ok(netdev)); - - at76_debug = val; - - return 0; -} - -static int at76_iw_get_debug(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - snprintf(wrqu->name, sizeof(wrqu->name), "0x%08x", at76_debug); - return 0; -} - -static int at76_iw_set_powersave_mode(struct net_device *netdev, - struct iw_request_info *info, char *name, - char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int val = *((int *)name); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_POWERSAVE_MODE, %d (%s)", - netdev->name, val, - val == AT76_PM_OFF ? "active" : val == AT76_PM_ON ? "save" : - val == AT76_PM_SMART ? "smart save" : "<invalid>"); - if (val < AT76_PM_OFF || val > AT76_PM_SMART) - ret = -EINVAL; - else - priv->pm_mode = val; - - return ret; -} - -static int at76_iw_get_powersave_mode(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int *param = (int *)extra; - - param[0] = priv->pm_mode; - return 0; -} - -static int at76_iw_set_scan_times(struct net_device *netdev, - struct iw_request_info *info, char *name, - char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int mint = *((int *)name); - int maxt = *((int *)name + 1); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_TIMES - min %d max %d", - netdev->name, mint, maxt); - if (mint <= 0 || maxt <= 0 || mint > maxt) - ret = -EINVAL; - else { - priv->scan_min_time = mint; - priv->scan_max_time = maxt; - } - - return ret; -} - -static int at76_iw_get_scan_times(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int *param = (int *)extra; - - param[0] = priv->scan_min_time; - param[1] = priv->scan_max_time; - return 0; -} - -static int at76_iw_set_scan_mode(struct net_device *netdev, - struct iw_request_info *info, char *name, - char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int val = *((int *)name); - int ret = -EIWCOMMIT; - - at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_MODE - mode %s", - netdev->name, (val = SCAN_TYPE_ACTIVE) ? "active" : - (val = SCAN_TYPE_PASSIVE) ? "passive" : "<invalid>"); - - if (val != SCAN_TYPE_ACTIVE && val != SCAN_TYPE_PASSIVE) - ret = -EINVAL; - else - priv->scan_mode = val; - - return ret; -} - -static int at76_iw_get_scan_mode(struct net_device *netdev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct at76_priv *priv = netdev_priv(netdev); - int *param = (int *)extra; - - param[0] = priv->scan_mode; - return 0; -} - -#define AT76_SET_HANDLER(h, f) [h - SIOCIWFIRST] = (iw_handler) f - -/* Standard wireless handlers */ -static const iw_handler at76_handlers[] = { - AT76_SET_HANDLER(SIOCSIWCOMMIT, at76_iw_handler_commit), - AT76_SET_HANDLER(SIOCGIWNAME, at76_iw_handler_get_name), - AT76_SET_HANDLER(SIOCSIWFREQ, at76_iw_handler_set_freq), - AT76_SET_HANDLER(SIOCGIWFREQ, at76_iw_handler_get_freq), - AT76_SET_HANDLER(SIOCSIWMODE, at76_iw_handler_set_mode), - AT76_SET_HANDLER(SIOCGIWMODE, at76_iw_handler_get_mode), - AT76_SET_HANDLER(SIOCGIWRANGE, at76_iw_handler_get_range), - AT76_SET_HANDLER(SIOCSIWSPY, at76_iw_handler_set_spy), - AT76_SET_HANDLER(SIOCGIWSPY, at76_iw_handler_get_spy), - AT76_SET_HANDLER(SIOCSIWTHRSPY, at76_iw_handler_set_thrspy), - AT76_SET_HANDLER(SIOCGIWTHRSPY, at76_iw_handler_get_thrspy), - AT76_SET_HANDLER(SIOCSIWAP, at76_iw_handler_set_wap), - AT76_SET_HANDLER(SIOCGIWAP, at76_iw_handler_get_wap), - AT76_SET_HANDLER(SIOCSIWSCAN, at76_iw_handler_set_scan), - AT76_SET_HANDLER(SIOCGIWSCAN, at76_iw_handler_get_scan), - AT76_SET_HANDLER(SIOCSIWESSID, at76_iw_handler_set_essid), - AT76_SET_HANDLER(SIOCGIWESSID, at76_iw_handler_get_essid), - AT76_SET_HANDLER(SIOCSIWRATE, at76_iw_handler_set_rate), - AT76_SET_HANDLER(SIOCGIWRATE, at76_iw_handler_get_rate), - AT76_SET_HANDLER(SIOCSIWRTS, at76_iw_handler_set_rts), - AT76_SET_HANDLER(SIOCGIWRTS, at76_iw_handler_get_rts), - AT76_SET_HANDLER(SIOCSIWFRAG, at76_iw_handler_set_frag), - AT76_SET_HANDLER(SIOCGIWFRAG, at76_iw_handler_get_frag), - AT76_SET_HANDLER(SIOCGIWTXPOW, at76_iw_handler_get_txpow), - AT76_SET_HANDLER(SIOCSIWRETRY, at76_iw_handler_set_retry), - AT76_SET_HANDLER(SIOCGIWRETRY, at76_iw_handler_get_retry), - AT76_SET_HANDLER(SIOCSIWENCODE, at76_iw_handler_set_encode), - AT76_SET_HANDLER(SIOCGIWENCODE, at76_iw_handler_get_encode), - AT76_SET_HANDLER(SIOCSIWPOWER, at76_iw_handler_set_power), - AT76_SET_HANDLER(SIOCGIWPOWER, at76_iw_handler_get_power) -}; - -#define AT76_SET_PRIV(h, f) [h - SIOCIWFIRSTPRIV] = (iw_handler) f - -/* Private wireless handlers */ -static const iw_handler at76_priv_handlers[] = { - AT76_SET_PRIV(AT76_SET_SHORT_PREAMBLE, at76_iw_set_short_preamble), - AT76_SET_PRIV(AT76_GET_SHORT_PREAMBLE, at76_iw_get_short_preamble), - AT76_SET_PRIV(AT76_SET_DEBUG, at76_iw_set_debug), - AT76_SET_PRIV(AT76_GET_DEBUG, at76_iw_get_debug), - AT76_SET_PRIV(AT76_SET_POWERSAVE_MODE, at76_iw_set_powersave_mode), - AT76_SET_PRIV(AT76_GET_POWERSAVE_MODE, at76_iw_get_powersave_mode), - AT76_SET_PRIV(AT76_SET_SCAN_TIMES, at76_iw_set_scan_times), - AT76_SET_PRIV(AT76_GET_SCAN_TIMES, at76_iw_get_scan_times), - AT76_SET_PRIV(AT76_SET_SCAN_MODE, at76_iw_set_scan_mode), - AT76_SET_PRIV(AT76_GET_SCAN_MODE, at76_iw_get_scan_mode), -}; - -/* Names and arguments of private wireless handlers */ -static const struct iw_priv_args at76_priv_args[] = { - /* 0 - long, 1 - short */ - {AT76_SET_SHORT_PREAMBLE, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"}, - - {AT76_GET_SHORT_PREAMBLE, - 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_preamble"}, - - /* we must pass the new debug mask as a string, because iwpriv cannot - * parse hex numbers starting with 0x :-( */ - {AT76_SET_DEBUG, - IW_PRIV_TYPE_CHAR | 10, 0, "set_debug"}, - - {AT76_GET_DEBUG, - 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_debug"}, - - /* 1 - active, 2 - power save, 3 - smart power save */ - {AT76_SET_POWERSAVE_MODE, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_powersave"}, - - {AT76_GET_POWERSAVE_MODE, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_powersave"}, - - /* min_channel_time, max_channel_time */ - {AT76_SET_SCAN_TIMES, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_scan_times"}, - - {AT76_GET_SCAN_TIMES, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, "get_scan_times"}, - - /* 0 - active, 1 - passive scan */ - {AT76_SET_SCAN_MODE, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_scan_mode"}, - - {AT76_GET_SCAN_MODE, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_scan_mode"}, -}; - -static const struct iw_handler_def at76_handler_def = { - .num_standard = ARRAY_SIZE(at76_handlers), - .num_private = ARRAY_SIZE(at76_priv_handlers), - .num_private_args = ARRAY_SIZE(at76_priv_args), - .standard = at76_handlers, - .private = at76_priv_handlers, - .private_args = at76_priv_args, - .get_wireless_stats = at76_get_wireless_stats, -}; - -static const u8 snapsig[] = { 0xaa, 0xaa, 0x03 }; - -/* RFC 1042 encapsulates Ethernet frames in 802.2 SNAP (0xaa, 0xaa, 0x03) with - * a SNAP OID of 0 (0x00, 0x00, 0x00) */ -static const u8 rfc1042sig[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; - -static int at76_tx(struct sk_buff *skb, struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - struct net_device_stats *stats = &priv->stats; - int ret = 0; - int wlen; - int submit_len; - struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; - struct ieee80211_hdr_3addr *i802_11_hdr = - (struct ieee80211_hdr_3addr *)tx_buffer->packet; - u8 *payload = i802_11_hdr->payload; - struct ethhdr *eh = (struct ethhdr *)skb->data; - - if (netif_queue_stopped(netdev)) { - printk(KERN_ERR "%s: %s called while netdev is stopped\n", - netdev->name, __func__); - /* skip this packet */ - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - - if (priv->tx_urb->status == -EINPROGRESS) { - printk(KERN_ERR "%s: %s called while tx urb is pending\n", - netdev->name, __func__); - /* skip this packet */ - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - - if (skb->len < ETH_HLEN) { - printk(KERN_ERR "%s: %s: skb too short (%d)\n", - netdev->name, __func__, skb->len); - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - - at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ - - /* we can get rid of memcpy if we set netdev->hard_header_len to - reserve enough space, but we would need to keep the skb around */ - - if (ntohs(eh->h_proto) <= ETH_DATA_LEN) { - /* this is a 802.3 packet */ - if (skb->len >= ETH_HLEN + sizeof(rfc1042sig) - && skb->data[ETH_HLEN] == rfc1042sig[0] - && skb->data[ETH_HLEN + 1] == rfc1042sig[1]) { - /* higher layer delivered SNAP header - keep it */ - memcpy(payload, skb->data + ETH_HLEN, - skb->len - ETH_HLEN); - wlen = IEEE80211_3ADDR_LEN + skb->len - ETH_HLEN; - } else { - printk(KERN_ERR "%s: dropping non-SNAP 802.2 packet " - "(DSAP 0x%02x SSAP 0x%02x cntrl 0x%02x)\n", - priv->netdev->name, skb->data[ETH_HLEN], - skb->data[ETH_HLEN + 1], - skb->data[ETH_HLEN + 2]); - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - } else { - /* add RFC 1042 header in front */ - memcpy(payload, rfc1042sig, sizeof(rfc1042sig)); - memcpy(payload + sizeof(rfc1042sig), &eh->h_proto, - skb->len - offsetof(struct ethhdr, h_proto)); - wlen = IEEE80211_3ADDR_LEN + sizeof(rfc1042sig) + skb->len - - offsetof(struct ethhdr, h_proto); - } - - /* make wireless header */ - i802_11_hdr->frame_ctl = - cpu_to_le16(IEEE80211_FTYPE_DATA | - (priv->wep_enabled ? IEEE80211_FCTL_PROTECTED : 0) | - (priv->iw_mode == - IW_MODE_INFRA ? IEEE80211_FCTL_TODS : 0)); - - if (priv->iw_mode == IW_MODE_ADHOC) { - memcpy(i802_11_hdr->addr1, eh->h_dest, ETH_ALEN); - memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); - memcpy(i802_11_hdr->addr3, priv->bssid, ETH_ALEN); - } else if (priv->iw_mode == IW_MODE_INFRA) { - memcpy(i802_11_hdr->addr1, priv->bssid, ETH_ALEN); - memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); - memcpy(i802_11_hdr->addr3, eh->h_dest, ETH_ALEN); - } - - i802_11_hdr->duration_id = cpu_to_le16(0); - i802_11_hdr->seq_ctl = cpu_to_le16(0); - - /* setup 'Atmel' header */ - tx_buffer->wlength = cpu_to_le16(wlen); - tx_buffer->tx_rate = priv->txrate; - /* for broadcast destination addresses, the firmware 0.100.x - seems to choose the highest rate set with CMD_STARTUP in - basic_rate_set replacing this value */ - - memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); - - tx_buffer->padding = at76_calc_padding(wlen); - submit_len = wlen + AT76_TX_HDRLEN + tx_buffer->padding; - - at76_dbg(DBG_TX_DATA_CONTENT, "%s skb->data %s", priv->netdev->name, - hex2str(skb->data, 32)); - at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr %s", - priv->netdev->name, - le16_to_cpu(tx_buffer->wlength), - tx_buffer->padding, tx_buffer->tx_rate, - hex2str(i802_11_hdr, sizeof(*i802_11_hdr))); - at76_dbg(DBG_TX_DATA_CONTENT, "%s payload %s", priv->netdev->name, - hex2str(payload, 48)); - - /* send stuff */ - netif_stop_queue(netdev); - netdev->trans_start = jiffies; - - usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, - submit_len, at76_tx_callback, priv); - ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); - if (ret) { - stats->tx_errors++; - printk(KERN_ERR "%s: error in tx submit urb: %d\n", - netdev->name, ret); - if (ret == -EINVAL) - printk(KERN_ERR - "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", - priv->netdev->name, priv->tx_urb, - priv->tx_urb->hcpriv, priv->tx_urb->complete); - } else - stats->tx_bytes += skb->len; - - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - -static void at76_tx_timeout(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - - if (!priv) - return; - dev_warn(&netdev->dev, "tx timeout."); - - usb_unlink_urb(priv->tx_urb); - priv->stats.tx_errors++; -} - -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", - priv->netdev->name, __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", - priv->netdev->name); - 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", - priv->netdev->name, 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", - priv->netdev->name); - - return ret; -} - -static int at76_open(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - int ret = 0; - - at76_dbg(DBG_PROC_ENTRY, "%s(): entry", __func__); - - if (mutex_lock_interruptible(&priv->mtx)) - return -EINTR; - - /* if netdev->dev_addr != priv->mac_addr we must - set the mac address in the device ! */ - if (compare_ether_addr(netdev->dev_addr, priv->mac_addr)) { - if (at76_add_mac_address(priv, netdev->dev_addr) >= 0) - at76_dbg(DBG_PROGRESS, "%s: set new MAC addr %pM", - netdev->name, netdev->dev_addr); - } - - priv->scan_state = SCAN_IDLE; - priv->last_scan = jiffies; - - ret = at76_submit_rx_urb(priv); - if (ret < 0) { - printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", - netdev->name, ret); - goto error; - } - - schedule_delayed_work(&priv->dwork_restart, 0); - - at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__); -error: - mutex_unlock(&priv->mtx); - return ret < 0 ? ret : 0; -} - -static int at76_stop(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - - at76_dbg(DBG_DEVSTART, "%s: ENTER", __func__); - - if (mutex_lock_interruptible(&priv->mtx)) - return -EINTR; - - at76_quiesce(priv); - - 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); - } - - /* free the bss_list */ - at76_free_bss_list(priv); - - mutex_unlock(&priv->mtx); - at76_dbg(DBG_DEVSTART, "%s: EXIT", __func__); - - return 0; -} - -static void at76_ethtool_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *info) -{ - struct at76_priv *priv = netdev_priv(netdev); - - strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); - strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); - - usb_make_path(priv->udev, info->bus_info, sizeof(info->bus_info)); - - snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d-%d", - priv->fw_version.major, priv->fw_version.minor, - priv->fw_version.patch, priv->fw_version.build); -} - -static u32 at76_ethtool_get_link(struct net_device *netdev) -{ - struct at76_priv *priv = netdev_priv(netdev); - return priv->mac_state == MAC_CONNECTED; -} - -static const struct ethtool_ops at76_ethtool_ops = { - .get_drvinfo = at76_ethtool_get_drvinfo, - .get_link = at76_ethtool_get_link, -}; - -/* 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_match_essid(struct at76_priv *priv, struct bss_info *ptr) -{ - /* common criteria for both modi */ - - int ret = (priv->essid_size == 0 /* ANY ssid */ || - (priv->essid_size == ptr->ssid_len && - !memcmp(priv->essid, ptr->ssid, ptr->ssid_len))); - if (!ret) - at76_dbg(DBG_BSS_MATCH, - "%s bss table entry %p: essid didn't match", - priv->netdev->name, ptr); - return ret; -} - -static inline int at76_match_mode(struct at76_priv *priv, struct bss_info *ptr) -{ - int ret; - - if (priv->iw_mode == IW_MODE_ADHOC) - ret = ptr->capa & WLAN_CAPABILITY_IBSS; - else - ret = ptr->capa & WLAN_CAPABILITY_ESS; - if (!ret) - at76_dbg(DBG_BSS_MATCH, - "%s bss table entry %p: mode didn't match", - priv->netdev->name, ptr); - return ret; -} - -static int at76_match_rates(struct at76_priv *priv, struct bss_info *ptr) -{ - int i; - - for (i = 0; i < ptr->rates_len; i++) { - u8 rate = ptr->rates[i]; - - if (!(rate & 0x80)) - continue; - - /* this is a basic rate we have to support - (see IEEE802.11, ch. 7.3.2.2) */ - if (rate != (0x80 | hw_rates[0]) - && rate != (0x80 | hw_rates[1]) - && rate != (0x80 | hw_rates[2]) - && rate != (0x80 | hw_rates[3])) { - at76_dbg(DBG_BSS_MATCH, - "%s: bss table entry %p: basic rate %02x not " - "supported", priv->netdev->name, ptr, rate); - return 0; - } - } - - /* if we use short preamble, the bss must support it */ - if (priv->preamble_type == PREAMBLE_TYPE_SHORT && - !(ptr->capa & WLAN_CAPABILITY_SHORT_PREAMBLE)) { - at76_dbg(DBG_BSS_MATCH, - "%s: %p does not support short preamble", - priv->netdev->name, ptr); - return 0; - } else - return 1; -} - -static inline int at76_match_wep(struct at76_priv *priv, struct bss_info *ptr) -{ - if (!priv->wep_enabled && ptr->capa & WLAN_CAPABILITY_PRIVACY) { - /* we have disabled WEP, but the BSS signals privacy */ - at76_dbg(DBG_BSS_MATCH, - "%s: bss table entry %p: requires encryption", - priv->netdev->name, ptr); - return 0; - } - /* otherwise if the BSS does not signal privacy it may well - accept encrypted packets from us ... */ - return 1; -} - -static inline int at76_match_bssid(struct at76_priv *priv, struct bss_info *ptr) -{ - if (!priv->wanted_bssid_valid || - !compare_ether_addr(ptr->bssid, priv->wanted_bssid)) - return 1; - - at76_dbg(DBG_BSS_MATCH, - "%s: requested bssid - %pM does not match", - priv->netdev->name, priv->wanted_bssid); - at76_dbg(DBG_BSS_MATCH, - " AP bssid - %pM of bss table entry %p", - ptr->bssid, ptr); - return 0; -} - -/** - * at76_match_bss - try to find a matching bss in priv->bss - * - * last - last bss tried - * - * last == NULL signals a new round starting with priv->bss_list.next - * this function must be called inside an acquired priv->bss_list_spinlock - * otherwise the timeout on bss may remove the newly chosen entry - */ -static struct bss_info *at76_match_bss(struct at76_priv *priv, - struct bss_info *last) -{ - struct bss_info *ptr = NULL; - struct list_head *curr; - - curr = last ? last->list.next : priv->bss_list.next; - while (curr != &priv->bss_list) { - ptr = list_entry(curr, struct bss_info, list); - if (at76_match_essid(priv, ptr) && at76_match_mode(priv, ptr) - && at76_match_wep(priv, ptr) && at76_match_rates(priv, ptr) - && at76_match_bssid(priv, ptr)) - break; - curr = curr->next; - } - - if (curr == &priv->bss_list) - ptr = NULL; - /* otherwise ptr points to the struct bss_info we have chosen */ - - at76_dbg(DBG_BSS_TABLE, "%s %s: returned %p", priv->netdev->name, - __func__, ptr); - return ptr; -} - -/* Start joining a matching BSS, or create own IBSS */ -static void at76_work_join(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - work_join); - int ret; - unsigned long flags; - - mutex_lock(&priv->mtx); - - WARN_ON(priv->mac_state != MAC_JOINING); - if (priv->mac_state != MAC_JOINING) - goto exit; - - /* secure the access to priv->curr_bss ! */ - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - priv->curr_bss = at76_match_bss(priv, priv->curr_bss); - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); - - if (!priv->curr_bss) { - /* here we haven't found a matching (i)bss ... */ - if (priv->iw_mode == IW_MODE_ADHOC) { - at76_set_mac_state(priv, MAC_OWN_IBSS); - at76_start_ibss(priv); - goto exit; - } - /* haven't found a matching BSS in infra mode - try again */ - at76_set_mac_state(priv, MAC_SCANNING); - schedule_work(&priv->work_start_scan); - goto exit; - } - - ret = at76_join_bss(priv, priv->curr_bss); - if (ret < 0) { - printk(KERN_ERR "%s: join_bss failed with %d\n", - priv->netdev->name, ret); - goto exit; - } - - ret = at76_wait_completion(priv, CMD_JOIN); - if (ret != CMD_STATUS_COMPLETE) { - if (ret != CMD_STATUS_TIME_OUT) - printk(KERN_ERR "%s: join_bss completed with %d\n", - priv->netdev->name, ret); - else - printk(KERN_INFO "%s: join_bss ssid %pM timed out\n", - priv->netdev->name, - priv->curr_bss->bssid); - - /* retry next BSS immediately */ - schedule_work(&priv->work_join); - goto exit; - } - - /* here we have joined the (I)BSS */ - if (priv->iw_mode == IW_MODE_ADHOC) { - struct bss_info *bptr = priv->curr_bss; - at76_set_mac_state(priv, MAC_CONNECTED); - /* get ESSID, BSSID and channel for priv->curr_bss */ - priv->essid_size = bptr->ssid_len; - memcpy(priv->essid, bptr->ssid, bptr->ssid_len); - memcpy(priv->bssid, bptr->bssid, ETH_ALEN); - priv->channel = bptr->channel; - at76_iwevent_bss_connect(priv->netdev, bptr->bssid); - netif_carrier_on(priv->netdev); - netif_start_queue(priv->netdev); - /* just to be sure */ - cancel_delayed_work(&priv->dwork_get_scan); - cancel_delayed_work(&priv->dwork_auth); - cancel_delayed_work(&priv->dwork_assoc); - } else { - /* send auth req */ - priv->retries = AUTH_RETRIES; - at76_set_mac_state(priv, MAC_AUTH); - at76_auth_req(priv, priv->curr_bss, 1, NULL); - at76_dbg(DBG_MGMT_TIMER, - "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); - schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); - } - -exit: - mutex_unlock(&priv->mtx); -} - -/* Reap scan results */ -static void at76_dwork_get_scan(struct work_struct *work) -{ - int status; - int ret; - struct at76_priv *priv = container_of(work, struct at76_priv, - dwork_get_scan.work); - - mutex_lock(&priv->mtx); - WARN_ON(priv->mac_state != MAC_SCANNING); - if (priv->mac_state != MAC_SCANNING) - goto exit; - - status = at76_get_cmd_status(priv->udev, CMD_SCAN); - if (status < 0) { - printk(KERN_ERR "%s: %s: at76_get_cmd_status failed with %d\n", - priv->netdev->name, __func__, status); - status = CMD_STATUS_IN_PROGRESS; - /* INFO: Hope it was a one off error - if not, scanning - further down the line and stop this cycle */ - } - at76_dbg(DBG_PROGRESS, - "%s %s: got cmd_status %d (state %s, need_any %d)", - priv->netdev->name, __func__, status, - mac_states[priv->mac_state], priv->scan_need_any); - - if (status != CMD_STATUS_COMPLETE) { - if ((status != CMD_STATUS_IN_PROGRESS) && - (status != CMD_STATUS_IDLE)) - printk(KERN_ERR "%s: %s: Bad scan status: %s\n", - priv->netdev->name, __func__, - at76_get_cmd_status_string(status)); - - /* the first cmd status after scan start is always a IDLE -> - start the timer to poll again until COMPLETED */ - at76_dbg(DBG_MGMT_TIMER, - "%s:%d: starting mgmt_timer for %d ticks", - __func__, __LINE__, SCAN_POLL_INTERVAL); - schedule_delayed_work(&priv->dwork_get_scan, - SCAN_POLL_INTERVAL); - goto exit; - } - - if (at76_debug & DBG_BSS_TABLE) - at76_dump_bss_table(priv); - - if (priv->scan_need_any) { - ret = at76_start_scan(priv, 0); - if (ret < 0) - printk(KERN_ERR - "%s: %s: start_scan (ANY) failed with %d\n", - priv->netdev->name, __func__, ret); - at76_dbg(DBG_MGMT_TIMER, - "%s:%d: starting mgmt_timer for %d ticks", __func__, - __LINE__, SCAN_POLL_INTERVAL); - schedule_delayed_work(&priv->dwork_get_scan, - SCAN_POLL_INTERVAL); - priv->scan_need_any = 0; - } else { - priv->scan_state = SCAN_COMPLETED; - /* report the end of scan to user space */ - at76_iwevent_scan_complete(priv->netdev); - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - } - -exit: - mutex_unlock(&priv->mtx); -} - -/* Handle loss of beacons from the AP */ -static void at76_dwork_beacon(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - dwork_beacon.work); - - mutex_lock(&priv->mtx); - if (priv->mac_state != MAC_CONNECTED || priv->iw_mode != IW_MODE_INFRA) - goto exit; - - /* We haven't received any beacons from out AP for BEACON_TIMEOUT */ - printk(KERN_INFO "%s: lost beacon bssid %pM\n", - priv->netdev->name, priv->curr_bss->bssid); - - netif_carrier_off(priv->netdev); - netif_stop_queue(priv->netdev); - at76_iwevent_bss_disconnect(priv->netdev); - at76_set_mac_state(priv, MAC_SCANNING); - schedule_work(&priv->work_start_scan); - -exit: - mutex_unlock(&priv->mtx); -} - -/* Handle authentication response timeout */ -static void at76_dwork_auth(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - dwork_auth.work); - - mutex_lock(&priv->mtx); - WARN_ON(priv->mac_state != MAC_AUTH); - if (priv->mac_state != MAC_AUTH) - goto exit; - - at76_dbg(DBG_PROGRESS, "%s: authentication response timeout", - priv->netdev->name); - - if (priv->retries-- >= 0) { - at76_auth_req(priv, priv->curr_bss, 1, NULL); - at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", - __func__, __LINE__); - schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); - } else { - /* try to get next matching BSS */ - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - } - -exit: - mutex_unlock(&priv->mtx); -} - -/* Handle association response timeout */ -static void at76_dwork_assoc(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - dwork_assoc.work); - - mutex_lock(&priv->mtx); - WARN_ON(priv->mac_state != MAC_ASSOC); - if (priv->mac_state != MAC_ASSOC) - goto exit; - - at76_dbg(DBG_PROGRESS, "%s: association response timeout", - priv->netdev->name); - - if (priv->retries-- >= 0) { - at76_assoc_req(priv, priv->curr_bss); - at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", - __func__, __LINE__); - schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); - } else { - /* try to get next matching BSS */ - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - } - -exit: - mutex_unlock(&priv->mtx); -} - -/* Read new bssid in ad-hoc mode */ -static void at76_work_new_bss(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - work_new_bss); - int ret; - struct mib_mac_mgmt mac_mgmt; - - mutex_lock(&priv->mtx); - - ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, &mac_mgmt, - sizeof(struct mib_mac_mgmt)); - if (ret < 0) { - printk(KERN_ERR "%s: at76_get_mib failed: %d\n", - priv->netdev->name, ret); - goto exit; - } - - at76_dbg(DBG_PROGRESS, "ibss_change = 0x%2x", mac_mgmt.ibss_change); - memcpy(priv->bssid, mac_mgmt.current_bssid, ETH_ALEN); - at76_dbg(DBG_PROGRESS, "using BSSID %pM", priv->bssid); - - at76_iwevent_bss_connect(priv->netdev, priv->bssid); - - priv->mib_buf.type = MIB_MAC_MGMT; - priv->mib_buf.size = 1; - priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); - priv->mib_buf.data.byte = 0; - - ret = at76_set_mib(priv, &priv->mib_buf); - if (ret < 0) - printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", - priv->netdev->name, ret); - -exit: - mutex_unlock(&priv->mtx); -} - -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", priv->netdev->name, 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", priv->netdev->name, - 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", - priv->netdev->name, 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, 4 * WEP_KEY_LEN); - - 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", - priv->netdev->name, 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; -} - -/* Restart the interface */ -static void at76_dwork_restart(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - dwork_restart.work); - - mutex_lock(&priv->mtx); - - netif_carrier_off(priv->netdev); /* stop netdev watchdog */ - netif_stop_queue(priv->netdev); /* stop tx data packets */ - - at76_startup_device(priv); - - if (priv->iw_mode != IW_MODE_MONITOR) { - priv->netdev->type = ARPHRD_ETHER; - at76_set_mac_state(priv, MAC_SCANNING); - schedule_work(&priv->work_start_scan); - } else { - priv->netdev->type = ARPHRD_IEEE80211_RADIOTAP; - at76_start_monitor(priv); - } - - mutex_unlock(&priv->mtx); -} - -/* Initiate scanning */ -static void at76_work_start_scan(struct work_struct *work) -{ - struct at76_priv *priv = container_of(work, struct at76_priv, - work_start_scan); - int ret; - - mutex_lock(&priv->mtx); - - WARN_ON(priv->mac_state != MAC_SCANNING); - if (priv->mac_state != MAC_SCANNING) - goto exit; - - /* only clear the bss list when a scan is actively initiated, - * otherwise simply rely on at76_bss_list_timeout */ - if (priv->scan_state == SCAN_IN_PROGRESS) { - at76_free_bss_list(priv); - priv->scan_need_any = 1; - } else - priv->scan_need_any = 0; - - ret = at76_start_scan(priv, 1); - - if (ret < 0) - printk(KERN_ERR "%s: %s: start_scan failed with %d\n", - priv->netdev->name, __func__, ret); - else { - at76_dbg(DBG_MGMT_TIMER, - "%s:%d: starting mgmt_timer for %d ticks", - __func__, __LINE__, SCAN_POLL_INTERVAL); - schedule_delayed_work(&priv->dwork_get_scan, - SCAN_POLL_INTERVAL); - } - -exit: - mutex_unlock(&priv->mtx); -} - -/* 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", - priv->netdev->name, 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); -} - -/* We got an association response */ -static void at76_rx_mgmt_assoc(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct ieee80211_assoc_response *resp = - (struct ieee80211_assoc_response *)buf->packet; - u16 assoc_id = le16_to_cpu(resp->aid); - u16 status = le16_to_cpu(resp->status); - - at76_dbg(DBG_RX_MGMT, "%s: rx AssocResp bssid %pM capa 0x%04x status " - "0x%04x assoc_id 0x%04x rates %s", priv->netdev->name, - resp->header.addr3, le16_to_cpu(resp->capability), - status, assoc_id, hex2str(resp->info_element->data, - resp->info_element->len)); - - if (priv->mac_state != MAC_ASSOC) { - printk(KERN_INFO "%s: AssocResp in state %s ignored\n", - priv->netdev->name, mac_states[priv->mac_state]); - return; - } - - BUG_ON(!priv->curr_bss); - - cancel_delayed_work(&priv->dwork_assoc); - if (status == WLAN_STATUS_SUCCESS) { - struct bss_info *ptr = priv->curr_bss; - priv->assoc_id = assoc_id & 0x3fff; - /* update iwconfig params */ - memcpy(priv->bssid, ptr->bssid, ETH_ALEN); - memcpy(priv->essid, ptr->ssid, ptr->ssid_len); - priv->essid_size = ptr->ssid_len; - priv->channel = ptr->channel; - schedule_work(&priv->work_assoc_done); - } else { - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - } -} - -/* Process disassociation request from the AP */ -static void at76_rx_mgmt_disassoc(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct ieee80211_disassoc *resp = - (struct ieee80211_disassoc *)buf->packet; - struct ieee80211_hdr_3addr *mgmt = &resp->header; - - at76_dbg(DBG_RX_MGMT, - "%s: rx DisAssoc bssid %pM reason 0x%04x destination %pM", - priv->netdev->name, mgmt->addr3, - le16_to_cpu(resp->reason), mgmt->addr1); - - /* We are not connected, ignore */ - if (priv->mac_state == MAC_SCANNING || priv->mac_state == MAC_INIT - || !priv->curr_bss) - return; - - /* Not our BSSID, ignore */ - if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) - return; - - /* Not for our STA and not broadcast, ignore */ - if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) - && !is_broadcast_ether_addr(mgmt->addr1)) - return; - - if (priv->mac_state != MAC_ASSOC && priv->mac_state != MAC_CONNECTED - && priv->mac_state != MAC_JOINING) { - printk(KERN_INFO "%s: DisAssoc in state %s ignored\n", - priv->netdev->name, mac_states[priv->mac_state]); - return; - } - - if (priv->mac_state == MAC_CONNECTED) { - netif_carrier_off(priv->netdev); - netif_stop_queue(priv->netdev); - at76_iwevent_bss_disconnect(priv->netdev); - } - cancel_delayed_work(&priv->dwork_get_scan); - cancel_delayed_work(&priv->dwork_beacon); - cancel_delayed_work(&priv->dwork_auth); - cancel_delayed_work(&priv->dwork_assoc); - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); -} - -static void at76_rx_mgmt_auth(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct ieee80211_auth *resp = (struct ieee80211_auth *)buf->packet; - struct ieee80211_hdr_3addr *mgmt = &resp->header; - int seq_nr = le16_to_cpu(resp->transaction); - int alg = le16_to_cpu(resp->algorithm); - int status = le16_to_cpu(resp->status); - - at76_dbg(DBG_RX_MGMT, - "%s: rx AuthFrame bssid %pM alg %d seq_nr %d status %d " - "destination %pM", priv->netdev->name, mgmt->addr3, - alg, seq_nr, status, mgmt->addr1); - - if (alg == WLAN_AUTH_SHARED_KEY && seq_nr == 2) - at76_dbg(DBG_RX_MGMT, "%s: AuthFrame challenge %s ...", - priv->netdev->name, hex2str(resp->info_element, 18)); - - if (priv->mac_state != MAC_AUTH) { - printk(KERN_INFO "%s: ignored AuthFrame in state %s\n", - priv->netdev->name, mac_states[priv->mac_state]); - return; - } - if (priv->auth_mode != alg) { - printk(KERN_INFO "%s: ignored AuthFrame for alg %d\n", - priv->netdev->name, alg); - return; - } - - BUG_ON(!priv->curr_bss); - - /* Not our BSSID or not for our STA, ignore */ - if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid) - || compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1)) - return; - - cancel_delayed_work(&priv->dwork_auth); - if (status != WLAN_STATUS_SUCCESS) { - /* try to join next bss */ - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - return; - } - - if (priv->auth_mode == WLAN_AUTH_OPEN || seq_nr == 4) { - priv->retries = ASSOC_RETRIES; - at76_set_mac_state(priv, MAC_ASSOC); - at76_assoc_req(priv, priv->curr_bss); - at76_dbg(DBG_MGMT_TIMER, - "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); - schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); - return; - } - - WARN_ON(seq_nr != 2); - at76_auth_req(priv, priv->curr_bss, seq_nr + 1, resp->info_element); - at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", __func__, - __LINE__); - schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); -} - -static void at76_rx_mgmt_deauth(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct ieee80211_disassoc *resp = - (struct ieee80211_disassoc *)buf->packet; - struct ieee80211_hdr_3addr *mgmt = &resp->header; - - at76_dbg(DBG_RX_MGMT | DBG_PROGRESS, - "%s: rx DeAuth bssid %pM reason 0x%04x destination %pM", - priv->netdev->name, mgmt->addr3, - le16_to_cpu(resp->reason), mgmt->addr1); - - if (priv->mac_state != MAC_AUTH && priv->mac_state != MAC_ASSOC - && priv->mac_state != MAC_CONNECTED) { - printk(KERN_INFO "%s: DeAuth in state %s ignored\n", - priv->netdev->name, mac_states[priv->mac_state]); - return; - } - - BUG_ON(!priv->curr_bss); - - /* Not our BSSID, ignore */ - if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) - return; - - /* Not for our STA and not broadcast, ignore */ - if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) - && !is_broadcast_ether_addr(mgmt->addr1)) - return; - - if (priv->mac_state == MAC_CONNECTED) - at76_iwevent_bss_disconnect(priv->netdev); - - at76_set_mac_state(priv, MAC_JOINING); - schedule_work(&priv->work_join); - cancel_delayed_work(&priv->dwork_get_scan); - cancel_delayed_work(&priv->dwork_beacon); - cancel_delayed_work(&priv->dwork_auth); - cancel_delayed_work(&priv->dwork_assoc); -} - -static void at76_rx_mgmt_beacon(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - int varpar_len; - /* beacon content */ - struct ieee80211_beacon *bdata = (struct ieee80211_beacon *)buf->packet; - struct ieee80211_hdr_3addr *mgmt = &bdata->header; - - struct list_head *lptr; - struct bss_info *match; /* entry matching addr3 with its bssid */ - int new_entry = 0; - int len; - struct ieee80211_info_element *ie; - int have_ssid = 0; - int have_rates = 0; - int have_channel = 0; - int keep_going = 1; - unsigned long flags; - - spin_lock_irqsave(&priv->bss_list_spinlock, flags); - if (priv->mac_state == MAC_CONNECTED) { - /* in state MAC_CONNECTED we use the mgmt_timer to control - the beacon of the BSS */ - BUG_ON(!priv->curr_bss); - - if (!compare_ether_addr(priv->curr_bss->bssid, mgmt->addr3)) { - /* We got our AP's beacon, defer the timeout handler. - Kill pending work first, as schedule_delayed_work() - won't do it. */ - cancel_delayed_work(&priv->dwork_beacon); - schedule_delayed_work(&priv->dwork_beacon, - BEACON_TIMEOUT); - priv->curr_bss->rssi = buf->rssi; - priv->beacons_received++; - goto exit; - } - } - - /* look if we have this BSS already in the list */ - match = NULL; - - if (!list_empty(&priv->bss_list)) { - list_for_each(lptr, &priv->bss_list) { - struct bss_info *bss_ptr = - list_entry(lptr, struct bss_info, list); - if (!compare_ether_addr(bss_ptr->bssid, mgmt->addr3)) { - match = bss_ptr; - break; - } - } - } - - if (!match) { - /* BSS not in the list - append it */ - match = kzalloc(sizeof(struct bss_info), GFP_ATOMIC); - if (!match) { - at76_dbg(DBG_BSS_TABLE, - "%s: cannot kmalloc new bss info (%zd byte)", - priv->netdev->name, sizeof(struct bss_info)); - goto exit; - } - new_entry = 1; - list_add_tail(&match->list, &priv->bss_list); - } - - match->capa = le16_to_cpu(bdata->capability); - match->beacon_interval = le16_to_cpu(bdata->beacon_interval); - match->rssi = buf->rssi; - match->link_qual = buf->link_quality; - match->noise_level = buf->noise_level; - memcpy(match->bssid, mgmt->addr3, ETH_ALEN); - at76_dbg(DBG_RX_BEACON, "%s: bssid %pM", priv->netdev->name, - match->bssid); - - ie = bdata->info_element; - - /* length of var length beacon parameters */ - varpar_len = min_t(int, le16_to_cpu(buf->wlength) - - sizeof(struct ieee80211_beacon), - BEACON_MAX_DATA_LENGTH); - - /* This routine steps through the bdata->data array to get - * some useful information about the access point. - * Currently, this implementation supports receipt of: SSID, - * supported transfer rates and channel, in any order, with some - * tolerance for intermittent unknown codes (although this - * functionality may not be necessary as the useful information will - * usually arrive in consecutively, but there have been some - * reports of some of the useful information fields arriving in a - * different order). - * It does not support any more IE types although MFIE_TYPE_TIM may - * be supported (on my AP at least). - * The bdata->data array is about 1500 bytes long but only ~36 of those - * bytes are useful, hence the have_ssid etc optimizations. */ - - while (keep_going && - ((&ie->data[ie->len] - (u8 *)bdata->info_element) <= - varpar_len)) { - - switch (ie->id) { - - case WLAN_EID_SSID: - if (have_ssid) - break; - - len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); - - /* we copy only if this is a new entry, - or the incoming SSID is not a hidden SSID. This - will protect us from overwriting a real SSID read - in a ProbeResponse with a hidden one from a - following beacon. */ - if (!new_entry && at76_is_hidden_ssid(ie->data, len)) { - have_ssid = 1; - break; - } - - match->ssid_len = len; - memcpy(match->ssid, ie->data, len); - at76_dbg(DBG_RX_BEACON, "%s: SSID - %.*s", - priv->netdev->name, len, match->ssid); - have_ssid = 1; - break; - - case WLAN_EID_SUPP_RATES: - if (have_rates) - break; - - match->rates_len = - min_t(int, sizeof(match->rates), ie->len); - memcpy(match->rates, ie->data, match->rates_len); - have_rates = 1; - at76_dbg(DBG_RX_BEACON, "%s: SUPPORTED RATES %s", - priv->netdev->name, - hex2str(ie->data, ie->len)); - break; - - case WLAN_EID_DS_PARAMS: - if (have_channel) - break; - - match->channel = ie->data[0]; - have_channel = 1; - at76_dbg(DBG_RX_BEACON, "%s: CHANNEL - %d", - priv->netdev->name, match->channel); - break; - - case WLAN_EID_CF_PARAMS: - case WLAN_EID_TIM: - case WLAN_EID_IBSS_PARAMS: - default: - at76_dbg(DBG_RX_BEACON, "%s: beacon IE id %d len %d %s", - priv->netdev->name, ie->id, ie->len, - hex2str(ie->data, ie->len)); - break; - } - - /* advance to the next informational element */ - next_ie(&ie); - - /* Optimization: after all, the bdata->data array is - * varpar_len bytes long, whereas we get all of the useful - * information after only ~36 bytes, this saves us a lot of - * time (and trouble as the remaining portion of the array - * could be full of junk) - * Comment this out if you want to see what other information - * comes from the AP - although little of it may be useful */ - } - - at76_dbg(DBG_RX_BEACON, "%s: Finished processing beacon data", - priv->netdev->name); - - match->last_rx = jiffies; /* record last rx of beacon */ - -exit: - spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); -} - -/* Calculate the link level from a given rx_buffer */ -static void at76_calc_level(struct at76_priv *priv, struct at76_rx_buffer *buf, - struct iw_quality *qual) -{ - /* just a guess for now, might be different for other chips */ - int max_rssi = 42; - - qual->level = (buf->rssi * 100 / max_rssi); - if (qual->level > 100) - qual->level = 100; - qual->updated |= IW_QUAL_LEVEL_UPDATED; -} - -/* Calculate the link quality from a given rx_buffer */ -static void at76_calc_qual(struct at76_priv *priv, struct at76_rx_buffer *buf, - struct iw_quality *qual) -{ - if (at76_is_intersil(priv->board_type)) - qual->qual = buf->link_quality; - else { - unsigned long elapsed; - - /* Update qual at most once a second */ - elapsed = jiffies - priv->beacons_last_qual; - if (elapsed < 1 * HZ) - return; - - qual->qual = qual->level * priv->beacons_received * - msecs_to_jiffies(priv->beacon_period) / elapsed; - - priv->beacons_last_qual = jiffies; - priv->beacons_received = 0; - } - qual->qual = (qual->qual > 100) ? 100 : qual->qual; - qual->updated |= IW_QUAL_QUAL_UPDATED; -} - -/* Calculate the noise quality from a given rx_buffer */ -static void at76_calc_noise(struct at76_priv *priv, struct at76_rx_buffer *buf, - struct iw_quality *qual) -{ - qual->noise = 0; - qual->updated |= IW_QUAL_NOISE_INVALID; -} - -static void at76_update_wstats(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct iw_quality *qual = &priv->wstats.qual; - - if (buf->rssi && priv->mac_state == MAC_CONNECTED) { - qual->updated = 0; - at76_calc_level(priv, buf, qual); - at76_calc_qual(priv, buf, qual); - at76_calc_noise(priv, buf, qual); - } else { - qual->qual = 0; - qual->level = 0; - qual->noise = 0; - qual->updated = IW_QUAL_ALL_INVALID; - } -} - -static void at76_rx_mgmt(struct at76_priv *priv, struct at76_rx_buffer *buf) -{ - struct ieee80211_hdr_3addr *mgmt = - (struct ieee80211_hdr_3addr *)buf->packet; - u16 framectl = le16_to_cpu(mgmt->frame_ctl); - - /* update wstats */ - if (priv->mac_state != MAC_INIT && priv->mac_state != MAC_SCANNING) { - /* jal: this is a dirty hack needed by Tim in ad-hoc mode */ - /* Data packets always seem to have a 0 link level, so we - only read link quality info from management packets. - Atmel driver actually averages the present, and previous - values, we just present the raw value at the moment - TJS */ - if (priv->iw_mode == IW_MODE_ADHOC - || (priv->curr_bss - && !compare_ether_addr(mgmt->addr3, - priv->curr_bss->bssid))) - at76_update_wstats(priv, buf); - } - - at76_dbg(DBG_RX_MGMT_CONTENT, "%s rx mgmt framectl 0x%x %s", - priv->netdev->name, framectl, - hex2str(mgmt, le16_to_cpu(buf->wlength))); - - switch (framectl & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_BEACON: - case IEEE80211_STYPE_PROBE_RESP: - at76_rx_mgmt_beacon(priv, buf); - break; - - case IEEE80211_STYPE_ASSOC_RESP: - at76_rx_mgmt_assoc(priv, buf); - break; - - case IEEE80211_STYPE_DISASSOC: - at76_rx_mgmt_disassoc(priv, buf); - break; - - case IEEE80211_STYPE_AUTH: - at76_rx_mgmt_auth(priv, buf); - break; - - case IEEE80211_STYPE_DEAUTH: - at76_rx_mgmt_deauth(priv, buf); - break; - - default: - printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", - priv->netdev->name, framectl); - } - - return; -} - -/* Convert the 802.11 header into an ethernet-style header, make skb - * ready for consumption by netif_rx() */ -static void at76_ieee80211_to_eth(struct sk_buff *skb, int iw_mode) -{ - struct ieee80211_hdr_3addr *i802_11_hdr; - struct ethhdr *eth_hdr_p; - u8 *src_addr; - u8 *dest_addr; - - i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; - - /* That would be the ethernet header if the hardware converted - * the frame for us. Make sure the source and the destination - * match the 802.11 header. Which hardware does it? */ - eth_hdr_p = (struct ethhdr *)skb_pull(skb, IEEE80211_3ADDR_LEN); - - dest_addr = i802_11_hdr->addr1; - if (iw_mode == IW_MODE_ADHOC) - src_addr = i802_11_hdr->addr2; - else - src_addr = i802_11_hdr->addr3; - - if (!compare_ether_addr(eth_hdr_p->h_source, src_addr) && - !compare_ether_addr(eth_hdr_p->h_dest, dest_addr)) - /* Yes, we already have an ethernet header */ - skb_reset_mac_header(skb); - else { - u16 len; - - /* Need to build an ethernet header */ - if (!memcmp(skb->data, snapsig, sizeof(snapsig))) { - /* SNAP frame - decapsulate, keep proto */ - skb_push(skb, offsetof(struct ethhdr, h_proto) - - sizeof(rfc1042sig)); - len = 0; - } else { - /* 802.3 frame, proto is length */ - len = skb->len; - skb_push(skb, ETH_HLEN); - } - - skb_reset_mac_header(skb); - eth_hdr_p = eth_hdr(skb); - /* This needs to be done in this order (eth_hdr_p->h_dest may - * overlap src_addr) */ - memcpy(eth_hdr_p->h_source, src_addr, ETH_ALEN); - memcpy(eth_hdr_p->h_dest, dest_addr, ETH_ALEN); - if (len) - eth_hdr_p->h_proto = htons(len); - } - - skb->protocol = eth_type_trans(skb, skb->dev); -} - -/* Check for fragmented data in priv->rx_skb. If the packet was no fragment - or it was the last of a fragment set a skb containing the whole packet - is returned for further processing. Otherwise we get NULL and are - done and the packet is either stored inside the fragment buffer - or thrown away. Every returned skb starts with the ieee802_11 header - and contains _no_ FCS at the end */ -static struct sk_buff *at76_check_for_rx_frags(struct at76_priv *priv) -{ - struct sk_buff *skb = priv->rx_skb; - struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; - struct ieee80211_hdr_3addr *i802_11_hdr = - (struct ieee80211_hdr_3addr *)buf->packet; - /* seq_ctrl, fragment_number, sequence number of new packet */ - u16 sctl = le16_to_cpu(i802_11_hdr->seq_ctl); - u16 fragnr = sctl & 0xf; - u16 seqnr = sctl >> 4; - u16 frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); - - /* Length including the IEEE802.11 header, but without the trailing - * FCS and without the Atmel Rx header */ - int length = le16_to_cpu(buf->wlength) - IEEE80211_FCS_LEN; - - /* where does the data payload start in skb->data ? */ - u8 *data = i802_11_hdr->payload; - - /* length of payload, excl. the trailing FCS */ - int data_len = length - IEEE80211_3ADDR_LEN; - - int i; - struct rx_data_buf *bptr, *optr; - unsigned long oldest = ~0UL; - - at76_dbg(DBG_RX_FRAGS, - "%s: rx data frame_ctl %04x addr2 %pM seq/frag %d/%d " - "length %d data %d: %s ...", priv->netdev->name, frame_ctl, - i802_11_hdr->addr2, seqnr, fragnr, length, data_len, - hex2str(data, 32)); - - at76_dbg(DBG_RX_FRAGS_SKB, "%s: incoming skb: head %p data %p " - "tail %p end %p len %d", priv->netdev->name, skb->head, - skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), - skb->len); - - if (data_len < 0) { - /* make sure data starts in the buffer */ - printk(KERN_INFO "%s: data frame too short\n", - priv->netdev->name); - return NULL; - } - - WARN_ON(length <= AT76_RX_HDRLEN); - if (length <= AT76_RX_HDRLEN) - return NULL; - - /* remove the at76_rx_buffer header - we don't need it anymore */ - /* we need the IEEE802.11 header (for the addresses) if this packet - is the first of a chain */ - skb_pull(skb, AT76_RX_HDRLEN); - - /* remove FCS at end */ - skb_trim(skb, length); - - at76_dbg(DBG_RX_FRAGS_SKB, "%s: trimmed skb: head %p data %p tail %p " - "end %p len %d data %p data_len %d", priv->netdev->name, - skb->head, skb->data, skb_tail_pointer(skb), - skb_end_pointer(skb), skb->len, data, data_len); - - if (fragnr == 0 && !(frame_ctl & IEEE80211_FCTL_MOREFRAGS)) { - /* unfragmented packet received */ - /* Use a new skb for the next receive */ - priv->rx_skb = NULL; - at76_dbg(DBG_RX_FRAGS, "%s: unfragmented", priv->netdev->name); - return skb; - } - - /* look if we've got a chain for the sender address. - afterwards optr points to first free or the oldest entry, - or, if i < NR_RX_DATA_BUF, bptr points to the entry for the - sender address */ - /* determining the oldest entry doesn't cope with jiffies wrapping - but I don't care to delete a young entry at these rare moments ... */ - - bptr = priv->rx_data; - optr = NULL; - for (i = 0; i < NR_RX_DATA_BUF; i++, bptr++) { - if (!bptr->skb) { - optr = bptr; - oldest = 0UL; - continue; - } - - if (!compare_ether_addr(i802_11_hdr->addr2, bptr->sender)) - break; - - if (!optr) { - optr = bptr; - oldest = bptr->last_rx; - } else if (bptr->last_rx < oldest) - optr = bptr; - } - - if (i < NR_RX_DATA_BUF) { - - at76_dbg(DBG_RX_FRAGS, "%s: %d. cacheentry (seq/frag = %d/%d) " - "matched sender addr", - priv->netdev->name, i, bptr->seqnr, bptr->fragnr); - - /* bptr points to an entry for the sender address */ - if (bptr->seqnr == seqnr) { - int left; - /* the fragment has the current sequence number */ - if (((bptr->fragnr + 1) & 0xf) != fragnr) { - /* wrong fragment number -> ignore it */ - /* is & 0xf necessary above ??? */ - at76_dbg(DBG_RX_FRAGS, - "%s: frag nr mismatch: %d + 1 != %d", - priv->netdev->name, bptr->fragnr, - fragnr); - return NULL; - } - bptr->last_rx = jiffies; - /* the next following fragment number -> - add the data at the end */ - - /* for test only ??? */ - left = skb_tailroom(bptr->skb); - if (left < data_len) - printk(KERN_INFO - "%s: only %d byte free (need %d)\n", - priv->netdev->name, left, data_len); - else - memcpy(skb_put(bptr->skb, data_len), data, - data_len); - - bptr->fragnr = fragnr; - if (frame_ctl & IEEE80211_FCTL_MOREFRAGS) - return NULL; - - /* this was the last fragment - send it */ - skb = bptr->skb; - bptr->skb = NULL; /* free the entry */ - at76_dbg(DBG_RX_FRAGS, "%s: last frag of seq %d", - priv->netdev->name, seqnr); - return skb; - } - - /* got another sequence number */ - if (fragnr == 0) { - /* it's the start of a new chain - replace the - old one by this */ - /* bptr->sender has the correct value already */ - at76_dbg(DBG_RX_FRAGS, - "%s: start of new seq %d, removing old seq %d", - priv->netdev->name, seqnr, bptr->seqnr); - bptr->seqnr = seqnr; - bptr->fragnr = 0; - bptr->last_rx = jiffies; - /* swap bptr->skb and priv->rx_skb */ - skb = bptr->skb; - bptr->skb = priv->rx_skb; - priv->rx_skb = skb; - } else { - /* it from the middle of a new chain -> - delete the old entry and skip the new one */ - at76_dbg(DBG_RX_FRAGS, - "%s: middle of new seq %d (%d) " - "removing old seq %d", - priv->netdev->name, seqnr, fragnr, - bptr->seqnr); - dev_kfree_skb(bptr->skb); - bptr->skb = NULL; - } - return NULL; - } - - /* if we didn't find a chain for the sender address, optr - points either to the first free or the oldest entry */ - - if (fragnr != 0) { - /* this is not the begin of a fragment chain ... */ - at76_dbg(DBG_RX_FRAGS, - "%s: no chain for non-first fragment (%d)", - priv->netdev->name, fragnr); - return NULL; - } - - BUG_ON(!optr); - if (optr->skb) { - /* swap the skb's */ - skb = optr->skb; - optr->skb = priv->rx_skb; - priv->rx_skb = skb; - - at76_dbg(DBG_RX_FRAGS, - "%s: free old contents: sender %pM seq/frag %d/%d", - priv->netdev->name, optr->sender, - optr->seqnr, optr->fragnr); - - } else { - /* take the skb from priv->rx_skb */ - optr->skb = priv->rx_skb; - /* let at76_submit_rx_urb() allocate a new skb */ - priv->rx_skb = NULL; - - at76_dbg(DBG_RX_FRAGS, "%s: use a free entry", - priv->netdev->name); - } - memcpy(optr->sender, i802_11_hdr->addr2, ETH_ALEN); - optr->seqnr = seqnr; - optr->fragnr = 0; - optr->last_rx = jiffies; - - return NULL; -} - -/* Rx interrupt: we expect the complete data buffer in priv->rx_skb */ -static void at76_rx_data(struct at76_priv *priv) -{ - struct net_device *netdev = priv->netdev; - struct net_device_stats *stats = &priv->stats; - struct sk_buff *skb = priv->rx_skb; - struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; - struct ieee80211_hdr_3addr *i802_11_hdr; - int length = le16_to_cpu(buf->wlength); - - at76_dbg(DBG_RX_DATA, "%s received data packet: %s", netdev->name, - hex2str(skb->data, AT76_RX_HDRLEN)); - - at76_dbg(DBG_RX_DATA_CONTENT, "rx packet: %s", - hex2str(skb->data + AT76_RX_HDRLEN, length)); - - skb = at76_check_for_rx_frags(priv); - if (!skb) - return; - - /* Atmel header and the FCS are already removed */ - i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; - - skb->dev = netdev; - skb->ip_summed = CHECKSUM_NONE; /* TODO: should check CRC */ - - if (is_broadcast_ether_addr(i802_11_hdr->addr1)) { - if (!compare_ether_addr(i802_11_hdr->addr1, netdev->broadcast)) - skb->pkt_type = PACKET_BROADCAST; - else - skb->pkt_type = PACKET_MULTICAST; - } else if (compare_ether_addr(i802_11_hdr->addr1, netdev->dev_addr)) - skb->pkt_type = PACKET_OTHERHOST; - - at76_ieee80211_to_eth(skb, priv->iw_mode); - - netdev->last_rx = jiffies; - netif_rx(skb); - stats->rx_packets++; - stats->rx_bytes += length; - - return; -} - -static void at76_rx_monitor_mode(struct at76_priv *priv) -{ - struct at76_rx_radiotap *rt; - u8 *payload; - int skblen; - struct net_device *netdev = priv->netdev; - struct at76_rx_buffer *buf = - (struct at76_rx_buffer *)priv->rx_skb->data; - /* length including the IEEE802.11 header and the trailing FCS, - but not at76_rx_buffer */ - int length = le16_to_cpu(buf->wlength); - struct sk_buff *skb = priv->rx_skb; - struct net_device_stats *stats = &priv->stats; - - if (length < IEEE80211_FCS_LEN) { - /* buffer contains no data */ - at76_dbg(DBG_MONITOR_MODE, - "%s: MONITOR MODE: rx skb without data", - priv->netdev->name); - return; - } - - skblen = sizeof(struct at76_rx_radiotap) + length; - - skb = dev_alloc_skb(skblen); - if (!skb) { - printk(KERN_ERR "%s: MONITOR MODE: dev_alloc_skb for radiotap " - "header returned NULL\n", priv->netdev->name); - return; - } - - skb_put(skb, skblen); - - rt = (struct at76_rx_radiotap *)skb->data; - payload = skb->data + sizeof(struct at76_rx_radiotap); - - rt->rt_hdr.it_version = 0; - rt->rt_hdr.it_pad = 0; - rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct at76_rx_radiotap)); - rt->rt_hdr.it_present = cpu_to_le32(AT76_RX_RADIOTAP_PRESENT); - - rt->rt_tsft = cpu_to_le64(le32_to_cpu(buf->rx_time)); - rt->rt_rate = hw_rates[buf->rx_rate] & (~0x80); - rt->rt_signal = buf->rssi; - rt->rt_noise = buf->noise_level; - rt->rt_flags = IEEE80211_RADIOTAP_F_FCS; - if (buf->fragmentation) - rt->rt_flags |= IEEE80211_RADIOTAP_F_FRAG; - - memcpy(payload, buf->packet, length); - skb->dev = netdev; - skb->ip_summed = CHECKSUM_NONE; - skb_reset_mac_header(skb); - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - - netdev->last_rx = jiffies; - netif_rx(skb); - stats->rx_packets++; - stats->rx_bytes += length; -} - -/* Check if we spy on the sender address in buf and update stats */ -static void at76_iwspy_update(struct at76_priv *priv, - struct at76_rx_buffer *buf) -{ - struct ieee80211_hdr_3addr *hdr = - (struct ieee80211_hdr_3addr *)buf->packet; - struct iw_quality qual; - - /* We can only set the level here */ - qual.updated = IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID; - qual.level = 0; - qual.noise = 0; - at76_calc_level(priv, buf, &qual); - - spin_lock_bh(&priv->spy_spinlock); - - if (priv->spy_data.spy_number > 0) - wireless_spy_update(priv->netdev, hdr->addr2, &qual); - - spin_unlock_bh(&priv->spy_spinlock); -} - -static void at76_rx_tasklet(unsigned long param) -{ - struct urb *urb = (struct urb *)param; - struct at76_priv *priv = urb->context; - struct net_device *netdev = priv->netdev; - struct at76_rx_buffer *buf; - struct ieee80211_hdr_3addr *i802_11_hdr; - u16 frame_ctl; - - 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 || !netdev || !priv->rx_skb->data) - return; - - buf = (struct at76_rx_buffer *)priv->rx_skb->data; - - i802_11_hdr = (struct ieee80211_hdr_3addr *)buf->packet; - - frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); - - if (urb->status != 0) { - if (urb->status != -ENOENT && urb->status != -ECONNRESET) - at76_dbg(DBG_URB, - "%s %s: - nonzero Rx bulk status received: %d", - __func__, netdev->name, urb->status); - return; - } - - at76_dbg(DBG_RX_ATMEL_HDR, - "%s: rx frame: rate %d rssi %d noise %d link %d %s", - priv->netdev->name, buf->rx_rate, buf->rssi, buf->noise_level, - buf->link_quality, hex2str(i802_11_hdr, 48)); - if (priv->iw_mode == IW_MODE_MONITOR) { - at76_rx_monitor_mode(priv); - goto exit; - } - - /* there is a new bssid around, accept it: */ - if (buf->newbss && priv->iw_mode == IW_MODE_ADHOC) { - at76_dbg(DBG_PROGRESS, "%s: rx newbss", netdev->name); - schedule_work(&priv->work_new_bss); - } - - switch (frame_ctl & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_DATA: - at76_rx_data(priv); - break; - - case IEEE80211_FTYPE_MGMT: - /* jal: TODO: find out if we can update iwspy also on - other frames than management (might depend on the - radio chip / firmware version !) */ - - at76_iwspy_update(priv, buf); - - at76_rx_mgmt(priv, buf); - break; - - case IEEE80211_FTYPE_CTL: - at76_dbg(DBG_RX_CTRL, "%s: ignored ctrl frame: %04x", - priv->netdev->name, frame_ctl); - break; - - default: - printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", - priv->netdev->name, frame_ctl); - } -exit: - 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/"); - 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; -} - -/* Allocate network device and initialize private data */ -static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) -{ - struct net_device *netdev; - struct at76_priv *priv; - int i; - - /* allocate memory for our device state and initialize it */ - netdev = alloc_etherdev(sizeof(struct at76_priv)); - if (!netdev) { - dev_printk(KERN_ERR, &udev->dev, "out of memory\n"); - return NULL; - } - - priv = netdev_priv(netdev); - - priv->udev = udev; - priv->netdev = netdev; - - mutex_init(&priv->mtx); - INIT_WORK(&priv->work_assoc_done, at76_work_assoc_done); - INIT_WORK(&priv->work_join, at76_work_join); - INIT_WORK(&priv->work_new_bss, at76_work_new_bss); - INIT_WORK(&priv->work_start_scan, at76_work_start_scan); - 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_restart, at76_dwork_restart); - INIT_DELAYED_WORK(&priv->dwork_get_scan, at76_dwork_get_scan); - INIT_DELAYED_WORK(&priv->dwork_beacon, at76_dwork_beacon); - INIT_DELAYED_WORK(&priv->dwork_auth, at76_dwork_auth); - INIT_DELAYED_WORK(&priv->dwork_assoc, at76_dwork_assoc); - - spin_lock_init(&priv->mgmt_spinlock); - priv->next_mgmt_bulk = NULL; - priv->mac_state = MAC_INIT; - - /* initialize empty BSS list */ - priv->curr_bss = NULL; - INIT_LIST_HEAD(&priv->bss_list); - spin_lock_init(&priv->bss_list_spinlock); - - init_timer(&priv->bss_list_timer); - priv->bss_list_timer.data = (unsigned long)priv; - priv->bss_list_timer.function = at76_bss_list_timeout; - - spin_lock_init(&priv->spy_spinlock); - - /* mark all rx data entries as unused */ - for (i = 0; i < NR_RX_DATA_BUF; i++) - priv->rx_data[i].skb = NULL; - - priv->rx_tasklet.func = at76_rx_tasklet; - priv->rx_tasklet.data = 0; - - priv->pm_mode = AT76_PM_OFF; - priv->pm_period = 0; - - 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 const struct net_device_ops at76_netdev_ops = { - .ndo_open = at76_open, - .ndo_stop = at76_stop, - .ndo_get_stats = at76_get_stats, - .ndo_start_xmit = at76_tx, - .ndo_tx_timeout = at76_tx_timeout, - .ndo_set_multicast_list = at76_set_multicast, - .ndo_set_mac_address = at76_set_mac_address, - .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = eth_change_mtu, -}; - -/* Register network device and initialize the hardware */ -static int at76_init_new_device(struct at76_priv *priv, - struct usb_interface *interface) -{ - struct net_device *netdev = priv->netdev; - 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); - /* init. netdev->dev_addr */ - memcpy(netdev->dev_addr, priv->mac_addr, ETH_ALEN); - - 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->beacons_last_qual = jiffies; - 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; - - netdev->flags &= ~IFF_MULTICAST; /* not yet or never */ - netdev->netdev_ops = &at76_netdev_ops; - netdev->ethtool_ops = &at76_ethtool_ops; - - /* Add pointers to enable iwspy support. */ - priv->wireless_data.spy_data = &priv->spy_data; -#ifdef CONFIG_WIRELESS_EXT - netdev->wireless_data = &priv->wireless_data; - netdev->wireless_handlers = &at76_handler_def; -#endif - - netdev->watchdog_timeo = 2 * HZ; - dev_alloc_name(netdev, "wlan%d"); - - ret = register_netdev(priv->netdev); - if (ret) { - dev_printk(KERN_ERR, &interface->dev, - "cannot register netdevice (status %d)!\n", ret); - goto exit; - } - priv->netdev_registered = 1; - - printk(KERN_INFO "%s: USB %s, MAC %pM, firmware %d.%d.%d-%d\n", - netdev->name, dev_name(&interface->dev), 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", netdev->name, - priv->regulatory_domain, priv->domain->name); - - /* we let this timer run the whole time this driver instance lives */ - mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); - -exit: - return ret; -} - -static void at76_delete_device(struct at76_priv *priv) -{ - int i; - - at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); - - /* The device is gone, don't bother turning it off */ - priv->device_unplugged = 1; - - if (priv->netdev_registered) - unregister_netdev(priv->netdev); - - /* 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__); - - kfree_skb(priv->rx_skb); - - at76_free_bss_list(priv); - del_timer_sync(&priv->bss_list_timer); - cancel_delayed_work(&priv->dwork_get_scan); - cancel_delayed_work(&priv->dwork_beacon); - cancel_delayed_work(&priv->dwork_auth); - cancel_delayed_work(&priv->dwork_assoc); - - if (priv->mac_state == MAC_CONNECTED) - at76_iwevent_bss_disconnect(priv->netdev); - - for (i = 0; i < NR_RX_DATA_BUF; i++) - if (priv->rx_data[i].skb) { - dev_kfree_skb(priv->rx_data[i].skb); - priv->rx_data[i].skb = NULL; - } - usb_put_dev(priv->udev); - - at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/netdev", __func__); - free_netdev(priv->netdev); /* priv is in netdev */ - - 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; - } - - SET_NETDEV_DEV(priv->netdev, &interface->dev); - 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", priv->netdev->name); - 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_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/at76_usb/at76_usb.h b/drivers/staging/at76_usb/at76_usb.h deleted file mode 100644 index 6d60c6e23a0..00000000000 --- a/drivers/staging/at76_usb/at76_usb.h +++ /dev/null @@ -1,706 +0,0 @@ -/* - * 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 - -/* - * ieee80211 definitions copied from net/ieee80211.h - */ - -#define WEP_KEY_LEN 13 -#define WEP_KEYS 4 - -#define IEEE80211_DATA_LEN 2304 -/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section - 6.2.1.1.2. - - The figure in section 7.1.2 suggests a body size of up to 2312 - bytes is allowed, which is a bit confusing, I suspect this - represents the 2304 bytes of real data, plus a possible 8 bytes of - WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ - -#define IEEE80211_1ADDR_LEN 10 -#define IEEE80211_2ADDR_LEN 16 -#define IEEE80211_3ADDR_LEN 24 -#define IEEE80211_4ADDR_LEN 30 -#define IEEE80211_FCS_LEN 4 -#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN) -#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) - -#define MIN_FRAG_THRESHOLD 256U -#define MAX_FRAG_THRESHOLD 2346U - -struct ieee80211_info_element { - u8 id; - u8 len; - u8 data[0]; -} __attribute__ ((packed)); - -struct ieee80211_hdr_3addr { - __le16 frame_ctl; - __le16 duration_id; - u8 addr1[ETH_ALEN]; - u8 addr2[ETH_ALEN]; - u8 addr3[ETH_ALEN]; - __le16 seq_ctl; - u8 payload[0]; -} __attribute__ ((packed)); - -struct ieee80211_auth { - struct ieee80211_hdr_3addr header; - __le16 algorithm; - __le16 transaction; - __le16 status; - /* challenge */ - struct ieee80211_info_element info_element[0]; -} __attribute__ ((packed)); - -struct ieee80211_assoc_request { - struct ieee80211_hdr_3addr header; - __le16 capability; - __le16 listen_interval; - /* SSID, supported rates, RSN */ - struct ieee80211_info_element info_element[0]; -} __attribute__ ((packed)); - -struct ieee80211_probe_response { - struct ieee80211_hdr_3addr header; - __le32 time_stamp[2]; - __le16 beacon_interval; - __le16 capability; - /* SSID, supported rates, FH params, DS params, - * CF params, IBSS params, TIM (if beacon), RSN */ - struct ieee80211_info_element info_element[0]; -} __attribute__ ((packed)); - -/* Alias beacon for probe_response */ -#define ieee80211_beacon ieee80211_probe_response - -struct ieee80211_assoc_response { - struct ieee80211_hdr_3addr header; - __le16 capability; - __le16 status; - __le16 aid; - /* supported rates */ - struct ieee80211_info_element info_element[0]; -} __attribute__ ((packed)); - -struct ieee80211_disassoc { - struct ieee80211_hdr_3addr header; - __le16 reason; -} __attribute__ ((packed)); - -/* 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 -}; - -/* our private ioctl's */ -/* preamble length (0 - long, 1 - short, 2 - auto) */ -#define AT76_SET_SHORT_PREAMBLE (SIOCIWFIRSTPRIV + 0) -#define AT76_GET_SHORT_PREAMBLE (SIOCIWFIRSTPRIV + 1) -/* which debug channels are enabled */ -#define AT76_SET_DEBUG (SIOCIWFIRSTPRIV + 2) -#define AT76_GET_DEBUG (SIOCIWFIRSTPRIV + 3) -/* power save mode (incl. the Atmel proprietary smart save mode) */ -#define AT76_SET_POWERSAVE_MODE (SIOCIWFIRSTPRIV + 4) -#define AT76_GET_POWERSAVE_MODE (SIOCIWFIRSTPRIV + 5) -/* min and max channel times for scan */ -#define AT76_SET_SCAN_TIMES (SIOCIWFIRSTPRIV + 6) -#define AT76_GET_SCAN_TIMES (SIOCIWFIRSTPRIV + 7) -/* scan mode (0 - active, 1 - passive) */ -#define AT76_SET_SCAN_MODE (SIOCIWFIRSTPRIV + 8) -#define AT76_GET_SCAN_MODE (SIOCIWFIRSTPRIV + 9) - -#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) - -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_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_FRAME_LEN + IEEE80211_FCS_LEN]; -} __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_FRAME_LEN + IEEE80211_FCS_LEN]; -} __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_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)); - -enum mac_state { - MAC_INIT, - MAC_SCANNING, - MAC_AUTH, - MAC_ASSOC, - MAC_JOINING, - MAC_CONNECTED, - MAC_OWN_IBSS -}; - -/* 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 */ -}; - -/* how long do we keep a (I)BSS in the bss_list in jiffies - this should be long enough for the user to retrieve the table - (by iwlist ?) after the device started, because all entries from - other channels than the one the device locks on get removed, too */ -#define BSS_LIST_TIMEOUT (120 * HZ) -/* struct to store BSS info found during scan */ -#define BSS_LIST_MAX_RATE_LEN 32 /* 32 rates should be enough ... */ - -struct bss_info { - struct list_head list; - - u8 bssid[ETH_ALEN]; /* bssid */ - u8 ssid[IW_ESSID_MAX_SIZE]; /* essid */ - u8 ssid_len; /* length of ssid above */ - u8 channel; - u16 capa; /* BSS capabilities */ - u16 beacon_interval; /* beacon interval, Kus (1024 microseconds) */ - u8 rates[BSS_LIST_MAX_RATE_LEN]; /* supported rates in units of - 500 kbps, ORed with 0x80 for - basic rates */ - u8 rates_len; - - /* quality of received beacon */ - u8 rssi; - u8 link_qual; - u8 noise_level; - - unsigned long last_rx; /* time (jiffies) of last beacon received */ -}; - -/* a rx data buffer to collect rx fragments */ -struct rx_data_buf { - u8 sender[ETH_ALEN]; /* sender address */ - u16 seqnr; /* sequence number */ - u16 fragnr; /* last fragment received */ - unsigned long last_rx; /* jiffies of last rx */ - struct sk_buff *skb; /* == NULL if entry is free */ -}; - -#define NR_RX_DATA_BUF 8 - -/* 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 net_device *netdev; /* net device pointer */ - struct net_device_stats stats; /* net device stats */ - struct iw_statistics wstats; /* wireless stats */ - - struct sk_buff *rx_skb; /* skbuff for receiving 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_assoc_done; - struct work_struct work_join; - struct work_struct work_new_bss; - struct work_struct work_start_scan; - struct work_struct work_set_promisc; - struct work_struct work_submit_rx; - struct delayed_work dwork_restart; - struct delayed_work dwork_get_scan; - struct delayed_work dwork_beacon; - struct delayed_work dwork_auth; - struct delayed_work dwork_assoc; - - 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_KEY_LEN]; /* the four WEP keys, - 5 or 13 bytes are used */ - u8 wep_keys_len[WEP_KEYS]; /* the length of the above 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 */ - - /* the list we got from scanning */ - spinlock_t bss_list_spinlock; /* protects bss_list operations */ - struct list_head bss_list; /* list of BSS we got beacons from */ - struct timer_list bss_list_timer; /* timer to purge old entries - from bss_list */ - struct bss_info *curr_bss; /* current BSS */ - u16 assoc_id; /* current association ID, if associated */ - - u8 wanted_bssid[ETH_ALEN]; - int wanted_bssid_valid; /* != 0 if wanted_bssid is to be used */ - - /* some data for infrastructure mode only */ - spinlock_t mgmt_spinlock; /* this spinlock protects access to - next_mgmt_bulk */ - - struct at76_tx_buffer *next_mgmt_bulk; /* pending management msg to - send via bulk out */ - enum mac_state mac_state; - enum { - SCAN_IDLE, - SCAN_IN_PROGRESS, - SCAN_COMPLETED - } scan_state; - time_t last_scan; - - int retries; /* remaining retries in case of timeout when - * sending AuthReq or AssocReq */ - u8 pm_mode; /* power management mode */ - u32 pm_period; /* power management period in microseconds */ - - struct reg_domain const *domain; /* reg domain description */ - - /* iwspy support */ - spinlock_t spy_spinlock; - struct iw_spy_data spy_data; - - struct iw_public_data wireless_data; - - /* 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; - - /* store rx fragments until complete */ - struct rx_data_buf rx_data[NR_RX_DATA_BUF]; - - 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 */ - - /* beacon counting */ - int beacon_period; /* period of mgmt beacons, Kus */ - int beacons_received; - unsigned long beacons_last_qual; /* time we restarted counting - beacons */ -}; - -struct at76_rx_radiotap { - struct ieee80211_radiotap_header rt_hdr; - __le64 rt_tsft; - u8 rt_flags; - u8 rt_rate; - s8 rt_signal; - s8 rt_noise; -}; - -#define AT76_RX_RADIOTAP_PRESENT \ - ((1 << IEEE80211_RADIOTAP_TSFT) | \ - (1 << IEEE80211_RADIOTAP_FLAGS) | \ - (1 << IEEE80211_RADIOTAP_RATE) | \ - (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) | \ - (1 << IEEE80211_RADIOTAP_DB_ANTNOISE)) - -#define BEACON_MAX_DATA_LENGTH 1500 - -/* the maximum size of an AssocReq packet */ -#define ASSOCREQ_MAX_SIZE \ - (AT76_TX_HDRLEN + sizeof(struct ieee80211_assoc_request) + \ - 1 + 1 + IW_ESSID_MAX_SIZE + 1 + 1 + 4) - -/* for shared secret auth, add the challenge text size */ -#define AUTH_FRAME_SIZE (AT76_TX_HDRLEN + sizeof(struct ieee80211_auth)) - -/* Maximal number of AuthReq retries */ -#define AUTH_RETRIES 3 - -/* Maximal number of AssocReq retries */ -#define ASSOC_RETRIES 3 - -/* Beacon timeout in managed mode when we are connected */ -#define BEACON_TIMEOUT (10 * HZ) - -/* Timeout for authentication response */ -#define AUTH_TIMEOUT (1 * HZ) - -/* Timeout for association response */ -#define ASSOC_TIMEOUT (1 * HZ) - -/* Polling interval when scan is running */ -#define SCAN_POLL_INTERVAL (HZ / 4) - -/* Command completion timeout */ -#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 - -#define MAX_RTS_THRESHOLD (MAX_FRAG_THRESHOLD + 1) - -/* the max padding size for tx in bytes (see calc_padding) */ -#define MAX_PADDING_SIZE 53 - -#endif /* _AT76_USB_H */ |