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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/net/wireless/at76c50x-usb.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/net/wireless/at76c50x-usb.c')
-rw-r--r--drivers/net/wireless/at76c50x-usb.c2610
1 files changed, 0 insertions, 2610 deletions
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
deleted file mode 100644
index 62a4316c2..000000000
--- a/drivers/net/wireless/at76c50x-usb.c
+++ /dev/null
@@ -1,2610 +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>
- * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi>
- * Copyright (c) 2010 Sebastian Smolorz <sesmo@gmx.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This file is part of the Berlios driver for WLAN USB devices based on the
- * Atmel AT76C503A/505/505A.
- *
- * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed
- *
- * TODO list is at the wiki:
- *
- * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO
- *
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <linux/usb.h>
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <net/ieee80211_radiotap.h>
-#include <linux/firmware.h>
-#include <linux/leds.h>
-#include <net/mac80211.h>
-
-#include "at76c50x-usb.h"
-
-/* Version information */
-#define DRIVER_NAME "at76c50x-usb"
-#define DRIVER_VERSION "0.17"
-#define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver"
-
-/* at76_debug bits */
-#define DBG_PROGRESS 0x00000001 /* authentication/accociation */
-#define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */
-#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */
-#define DBG_MAC_STATE 0x00000008 /* MAC state transitions */
-#define DBG_TX_DATA 0x00000010 /* tx header */
-#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */
-#define DBG_TX_MGMT 0x00000040 /* tx management */
-#define DBG_RX_DATA 0x00000080 /* rx data header */
-#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */
-#define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */
-#define DBG_RX_BEACON 0x00000400 /* rx beacon */
-#define DBG_RX_CTRL 0x00000800 /* rx control */
-#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */
-#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */
-#define DBG_DEVSTART 0x00004000 /* fw download, device start */
-#define DBG_URB 0x00008000 /* rx urb status, ... */
-#define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */
-#define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */
-#define DBG_PM 0x00040000 /* power management settings */
-#define DBG_BSS_MATCH 0x00080000 /* BSS match failures */
-#define DBG_PARAMS 0x00100000 /* show configured parameters */
-#define DBG_WAIT_COMPLETE 0x00200000 /* command completion */
-#define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */
-#define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */
-#define DBG_MONITOR_MODE 0x01000000 /* monitor mode */
-#define DBG_MIB 0x02000000 /* dump all MIBs on startup */
-#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */
-#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */
-#define DBG_FW 0x10000000 /* firmware download */
-#define DBG_DFU 0x20000000 /* device firmware upgrade */
-#define DBG_CMD 0x40000000
-#define DBG_MAC80211 0x80000000
-
-#define DBG_DEFAULTS 0
-
-/* Use our own dbg macro */
-#define at76_dbg(bits, format, arg...) \
-do { \
- if (at76_debug & (bits)) \
- printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \
-} while (0)
-
-#define at76_dbg_dump(bits, buf, len, format, arg...) \
-do { \
- if (at76_debug & (bits)) { \
- printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \
- print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \
- } \
-} while (0)
-
-static uint at76_debug = DBG_DEFAULTS;
-
-/* Protect against concurrent firmware loading and parsing */
-static struct mutex fw_mutex;
-
-static struct fwentry firmwares[] = {
- [0] = { "" },
- [BOARD_503_ISL3861] = { "/*(DEBLOBBED)*/" },
- [BOARD_503_ISL3863] = { "/*(DEBLOBBED)*/" },
- [BOARD_503] = { "/*(DEBLOBBED)*/" },
- [BOARD_503_ACC] = { "/*(DEBLOBBED)*/" },
- [BOARD_505] = { "/*(DEBLOBBED)*/" },
- [BOARD_505_2958] = { "/*(DEBLOBBED)*/" },
- [BOARD_505A] = { "/*(DEBLOBBED)*/" },
- [BOARD_505AMX] = { "/*(DEBLOBBED)*/" },
-};
-/*(DEBLOBBED)*/
-
-#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 };
-
-static const char *const preambles[] = { "long", "short", "auto" };
-
-/* Firmware download */
-/* DFU states */
-#define STATE_IDLE 0x00
-#define STATE_DETACH 0x01
-#define STATE_DFU_IDLE 0x02
-#define STATE_DFU_DOWNLOAD_SYNC 0x03
-#define STATE_DFU_DOWNLOAD_BUSY 0x04
-#define STATE_DFU_DOWNLOAD_IDLE 0x05
-#define STATE_DFU_MANIFEST_SYNC 0x06
-#define STATE_DFU_MANIFEST 0x07
-#define STATE_DFU_MANIFEST_WAIT_RESET 0x08
-#define STATE_DFU_UPLOAD_IDLE 0x09
-#define STATE_DFU_ERROR 0x0a
-
-/* DFU commands */
-#define DFU_DETACH 0
-#define DFU_DNLOAD 1
-#define DFU_UPLOAD 2
-#define DFU_GETSTATUS 3
-#define DFU_CLRSTATUS 4
-#define DFU_GETSTATE 5
-#define DFU_ABORT 6
-
-#define FW_BLOCK_SIZE 1024
-
-struct dfu_status {
- unsigned char status;
- unsigned char poll_timeout[3];
- unsigned char state;
- unsigned char string;
-} __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 int 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)
-{
- int ret = 0;
- int need_dfu_state = 1;
- int is_done = 0;
- u32 dfu_timeout = 0;
- int bsize = 0;
- int blockno = 0;
- struct dfu_status *dfu_stat_buf = NULL;
- u8 *dfu_state = NULL;
- u8 *block = NULL;
-
- at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size,
- manifest_sync_timeout);
-
- if (!size) {
- dev_err(&udev->dev, "FW buffer length invalid!\n");
- return -EINVAL;
- }
-
- dfu_stat_buf = kmalloc(sizeof(struct dfu_status), GFP_KERNEL);
- if (!dfu_stat_buf) {
- ret = -ENOMEM;
- goto exit;
- }
-
- block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
- if (!block) {
- ret = -ENOMEM;
- goto exit;
- }
-
- dfu_state = kmalloc(sizeof(u8), GFP_KERNEL);
- if (!dfu_state) {
- ret = -ENOMEM;
- goto exit;
- }
- *dfu_state = 0;
-
- do {
- if (need_dfu_state) {
- ret = at76_dfu_get_state(udev, dfu_state);
- if (ret < 0) {
- dev_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_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_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(dfu_state);
- kfree(block);
- kfree(dfu_stat_buf);
-
- if (ret >= 0)
- ret = 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);
-}
-
-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)
- wiphy_err(priv->hw->wiphy, "cannot get HW Config (error %d)\n",
- 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;
-}
-
-#define MAKE_CMD_CASE(c) case (c): return #c
-static const char *at76_get_cmd_string(u8 cmd_status)
-{
- switch (cmd_status) {
- MAKE_CMD_CASE(CMD_SET_MIB);
- MAKE_CMD_CASE(CMD_GET_MIB);
- MAKE_CMD_CASE(CMD_SCAN);
- MAKE_CMD_CASE(CMD_JOIN);
- MAKE_CMD_CASE(CMD_START_IBSS);
- MAKE_CMD_CASE(CMD_RADIO_ON);
- MAKE_CMD_CASE(CMD_RADIO_OFF);
- MAKE_CMD_CASE(CMD_STARTUP);
- }
-
- return "UNKNOWN";
-}
-
-static int at76_set_card_command(struct usb_device *udev, 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);
-
- at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size,
- "issuing command %s (0x%02x)",
- at76_get_cmd_string(cmd), cmd);
-
- ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
- USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
- 0, 0, cmd_buf,
- sizeof(struct at76_command) + buf_size,
- USB_CTRL_GET_TIMEOUT);
- kfree(cmd_buf);
- return ret;
-}
-
-#define MAKE_CMD_STATUS_CASE(c) case (c): return #c
-static const char *at76_get_cmd_status_string(u8 cmd_status)
-{
- switch (cmd_status) {
- MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE);
- MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED);
- }
-
- return "UNKNOWN";
-}
-
-/* Wait until the command is completed */
-static int at76_wait_completion(struct at76_priv *priv, int cmd)
-{
- int status = 0;
- unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT;
-
- do {
- status = at76_get_cmd_status(priv->udev, cmd);
- if (status < 0) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_cmd_status failed: %d\n",
- status);
- break;
- }
-
- at76_dbg(DBG_WAIT_COMPLETE,
- "%s: Waiting on cmd %d, status = %d (%s)",
- wiphy_name(priv->hw->wiphy), cmd, status,
- at76_get_cmd_status_string(status));
-
- if (status != CMD_STATUS_IN_PROGRESS
- && status != CMD_STATUS_IDLE)
- break;
-
- schedule_timeout_interruptible(HZ / 10); /* 100 ms */
- if (time_after(jiffies, timeout)) {
- wiphy_err(priv->hw->wiphy,
- "completion timeout for command %d\n", 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) {
- wiphy_info(priv->hw->wiphy,
- "set_mib: at76_wait_completion failed with %d\n",
- 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)
- wiphy_err(priv->hw->wiphy,
- "at76_set_card_command(%d) failed: %d\n", 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)
- wiphy_err(priv->hw->wiphy, "set_mib (pm_mode) failed: %d\n",
- 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)
- wiphy_err(priv->hw->wiphy, "set_mib (preamble) failed: %d\n",
- 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)
- wiphy_err(priv->hw->wiphy,
- "set_mib (frag threshold) failed: %d\n", 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)
- wiphy_err(priv->hw->wiphy, "set_mib (rts) failed: %d\n", 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)
- wiphy_err(priv->hw->wiphy,
- "set_mib (autorate fallback) failed: %d\n", 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) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (MAC_ADDR) failed: %d\n", ret);
- goto exit;
- }
-
- at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x",
- wiphy_name(priv->hw->wiphy),
- 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", wiphy_name(priv->hw->wiphy), 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) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (MAC_WEP) failed: %d\n", ret);
- goto exit;
- }
-
- at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u "
- "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u "
- "encr_level %u key %d", wiphy_name(priv->hw->wiphy),
- m->privacy_invoked, m->wep_default_key_id,
- m->wep_key_mapping_len, m->exclude_unencrypted,
- le32_to_cpu(m->wep_icv_error_count),
- le32_to_cpu(m->wep_excluded_count), m->encryption_level,
- m->wep_default_key_id);
-
- key_len = (m->encryption_level == 1) ?
- WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
-
- for (i = 0; i < WEP_KEYS; i++)
- at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %*phD",
- wiphy_name(priv->hw->wiphy), i,
- key_len, m->wep_default_keyvalue[i]);
-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) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (MAC_MGMT) failed: %d\n", 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 current_essid %*phD current_bss_type %d "
- "pm_mode %d ibss_change %d res %d "
- "multi_domain_capability_implemented %d "
- "international_roaming %d country_string %.3s",
- wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period),
- le16_to_cpu(m->CFP_max_duration),
- le16_to_cpu(m->medium_occupancy_limit),
- le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window),
- m->CFP_mode, m->privacy_option_implemented, m->DTIM_period,
- m->CFP_period, m->current_bssid,
- IW_ESSID_MAX_SIZE, m->current_essid,
- 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) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (MAC) failed: %d\n", 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 %*phD desired_bssid %pM desired_bsstype %d",
- wiphy_name(priv->hw->wiphy),
- le32_to_cpu(m->max_tx_msdu_lifetime),
- le32_to_cpu(m->max_rx_lifetime),
- le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold),
- le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax),
- m->short_retry_time, m->long_retry_time, m->scan_type,
- m->scan_channel, le16_to_cpu(m->probe_delay),
- le16_to_cpu(m->min_channel_time),
- le16_to_cpu(m->max_channel_time),
- le16_to_cpu(m->listen_interval),
- IW_ESSID_MAX_SIZE, m->desired_ssid,
- 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) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (PHY) failed: %d\n", ret);
- goto exit;
- }
-
- at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d "
- "sifs_time %d preamble_length %d plcp_header_length %d "
- "mpdu_max_length %d cca_mode_supported %d operation_rate_set "
- "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d "
- "phy_type %d current_reg_domain %d",
- wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold),
- le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time),
- le16_to_cpu(m->preamble_length),
- le16_to_cpu(m->plcp_header_length),
- le16_to_cpu(m->mpdu_max_length),
- le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0],
- m->operation_rate_set[1], m->operation_rate_set[2],
- m->operation_rate_set[3], m->channel_id, m->current_cca_mode,
- m->phy_type, m->current_reg_domain);
-exit:
- kfree(m);
-}
-
-static void at76_dump_mib_local(struct at76_priv *priv)
-{
- int ret;
- struct mib_local *m = kmalloc(sizeof(*m), GFP_KERNEL);
-
- if (!m)
- return;
-
- ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(*m));
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (LOCAL) failed: %d\n", ret);
- goto exit;
- }
-
- at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d "
- "txautorate_fallback %d ssid_size %d promiscuous_mode %d "
- "preamble_type %d", wiphy_name(priv->hw->wiphy),
- m->beacon_enable,
- m->txautorate_fallback, m->ssid_size, m->promiscuous_mode,
- m->preamble_type);
-exit:
- kfree(m);
-}
-
-static void at76_dump_mib_mdomain(struct at76_priv *priv)
-{
- int ret;
- struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL);
-
- if (!m)
- return;
-
- ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m,
- sizeof(struct mib_mdomain));
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy,
- "at76_get_mib (MDOMAIN) failed: %d\n", ret);
- goto exit;
- }
-
- at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %*phD",
- wiphy_name(priv->hw->wiphy),
- (int)sizeof(m->channel_list), m->channel_list);
-
- at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %*phD",
- wiphy_name(priv->hw->wiphy),
- (int)sizeof(m->tx_powerlevel), m->tx_powerlevel);
-exit:
- kfree(m);
-}
-
-/* Enable monitor mode */
-static int at76_start_monitor(struct at76_priv *priv)
-{
- struct at76_req_scan scan;
- int ret;
-
- memset(&scan, 0, sizeof(struct at76_req_scan));
- eth_broadcast_addr(scan.bssid);
-
- scan.channel = priv->channel;
- scan.scan_type = SCAN_TYPE_PASSIVE;
- scan.international_scan = 0;
- 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(0);
-
- ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
- if (ret >= 0)
- ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
-
- return ret;
-}
-
-/* Calculate padding from txbuf->wlength (which excludes the USB TX header),
- likely to compensate a flaw in the AT76C503A USB part ... */
-static inline int at76_calc_padding(int wlen)
-{
- /* add the USB TX header */
- wlen += AT76_TX_HDRLEN;
-
- wlen = wlen % 64;
-
- if (wlen < 50)
- return 50 - wlen;
-
- if (wlen >= 61)
- return 64 + 50 - wlen;
-
- return 0;
-}
-
-static void at76_rx_callback(struct urb *urb)
-{
- struct at76_priv *priv = urb->context;
-
- priv->rx_tasklet.data = (unsigned long)urb;
- tasklet_schedule(&priv->rx_tasklet);
-}
-
-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) {
- wiphy_err(priv->hw->wiphy, "%s: priv->rx_urb is NULL\n",
- __func__);
- return -EFAULT;
- }
-
- if (!skb) {
- skb = dev_alloc_skb(sizeof(struct at76_rx_buffer));
- if (!skb) {
- wiphy_err(priv->hw->wiphy,
- "cannot allocate rx skbuff\n");
- 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
- wiphy_err(priv->hw->wiphy,
- "rx, usb_submit_urb failed: %d\n", ret);
- }
-
-exit:
- if (ret < 0 && ret != -ENODEV)
- wiphy_err(priv->hw->wiphy,
- "cannot submit rx urb - please unload the driver and/or power cycle the device\n");
-
- return ret;
-}
-
-/* Download external firmware */
-static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe)
-{
- int ret;
- int op_mode;
- int blockno = 0;
- int bsize;
- u8 *block;
- u8 *buf = fwe->extfw;
- int size = fwe->extfw_size;
-
- if (!buf || !size)
- return -ENOENT;
-
- op_mode = at76_get_op_mode(udev);
- at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
-
- if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
- dev_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_err(&udev->dev,
- "loading %dth firmware block failed: %d\n",
- blockno, ret);
- ret = -EIO;
- 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_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_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_err(&udev->dev,
- "sending REMAP failed with %d\n", ret);
- goto exit;
- }
- }
-
- at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds");
- schedule_timeout_interruptible(2 * HZ + 1);
- usb_reset_device(udev);
-
-exit:
- return ret;
-}
-
-static int at76_startup_device(struct at76_priv *priv)
-{
- struct at76_card_config *ccfg = &priv->card_config;
- int ret;
-
- at76_dbg(DBG_PARAMS,
- "%s param: ssid %.*s (%*phD) mode %s ch %d wep %s key %d "
- "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size,
- priv->essid, IW_ESSID_MAX_SIZE, priv->essid,
- priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra",
- priv->channel, priv->wep_enabled ? "enabled" : "disabled",
- priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]);
- at76_dbg(DBG_PARAMS,
- "%s param: preamble %s rts %d retry %d frag %d "
- "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy),
- preambles[priv->preamble_type], priv->rts_threshold,
- priv->short_retry_limit, priv->frag_threshold,
- priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate ==
- TX_RATE_2MBIT ? "2MBit" : priv->txrate ==
- TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate ==
- TX_RATE_11MBIT ? "11MBit" : priv->txrate ==
- TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode);
- at76_dbg(DBG_PARAMS,
- "%s param: pm_mode %d pm_period %d auth_mode %s "
- "scan_times %d %d scan_mode %s",
- wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period,
- priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret",
- priv->scan_min_time, priv->scan_max_time,
- priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive");
-
- memset(ccfg, 0, sizeof(struct at76_card_config));
- ccfg->promiscuous_mode = 0;
- ccfg->short_retry_limit = priv->short_retry_limit;
-
- if (priv->wep_enabled) {
- if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
- ccfg->encryption_type = 2;
- else
- ccfg->encryption_type = 1;
-
- /* jal: always exclude unencrypted if WEP is active */
- ccfg->exclude_unencrypted = 1;
- } else {
- ccfg->exclude_unencrypted = 0;
- ccfg->encryption_type = 0;
- }
-
- ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold);
- ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold);
-
- memcpy(ccfg->basic_rate_set, hw_rates, 4);
- /* jal: really needed, we do a set_mib for autorate later ??? */
- ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0);
- ccfg->channel = priv->channel;
- ccfg->privacy_invoked = priv->wep_enabled;
- memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE);
- ccfg->ssid_len = priv->essid_size;
-
- ccfg->wep_default_key_id = priv->wep_key_id;
- memcpy(ccfg->wep_default_key_value, priv->wep_keys,
- sizeof(priv->wep_keys));
-
- ccfg->short_preamble = priv->preamble_type;
- ccfg->beacon_period = cpu_to_le16(priv->beacon_period);
-
- ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config,
- sizeof(struct at76_card_config));
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n",
- ret);
- return ret;
- }
-
- at76_wait_completion(priv, CMD_STARTUP);
-
- /* remove BSSID from previous run */
- eth_zero_addr(priv->bssid);
-
- priv->scanning = false;
-
- if (at76_set_radio(priv, 1) == 1)
- at76_wait_completion(priv, CMD_RADIO_ON);
-
- ret = at76_set_preamble(priv, priv->preamble_type);
- if (ret < 0)
- return ret;
-
- ret = at76_set_frag(priv, priv->frag_threshold);
- if (ret < 0)
- return ret;
-
- ret = at76_set_rts(priv, priv->rts_threshold);
- if (ret < 0)
- return ret;
-
- ret = at76_set_autorate_fallback(priv,
- priv->txrate == TX_RATE_AUTO ? 1 : 0);
- if (ret < 0)
- return ret;
-
- ret = at76_set_pm_mode(priv);
- if (ret < 0)
- return ret;
-
- if (at76_debug & DBG_MIB) {
- at76_dump_mib_mac(priv);
- at76_dump_mib_mac_addr(priv);
- at76_dump_mib_mac_mgmt(priv);
- at76_dump_mib_mac_wep(priv);
- at76_dump_mib_mdomain(priv);
- at76_dump_mib_phy(priv);
- at76_dump_mib_local(priv);
- }
-
- return 0;
-}
-
-/* Enable or disable promiscuous mode */
-static void at76_work_set_promisc(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_set_promisc);
- int ret = 0;
-
- if (priv->device_unplugged)
- return;
-
- 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)
- wiphy_err(priv->hw->wiphy,
- "set_mib (promiscuous_mode) failed: %d\n", 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);
-}
-
-/* This is a workaround to make scan working:
- * currently mac80211 does not process frames with no frequency
- * information.
- * However during scan the HW performs a sweep by itself, and we
- * are unable to know where the radio is actually tuned.
- * This function tries to do its best to guess this information..
- * During scan, If the current frame is a beacon or a probe response,
- * the channel information is extracted from it.
- * When not scanning, for other frames, or if it happens that for
- * whatever reason we fail to parse beacons and probe responses, this
- * function returns the priv->channel information, that should be correct
- * at least when we are not scanning.
- */
-static inline int at76_guess_freq(struct at76_priv *priv)
-{
- size_t el_off;
- const u8 *el;
- int channel = priv->channel;
- int len = priv->rx_skb->len;
- struct ieee80211_hdr *hdr = (void *)priv->rx_skb->data;
-
- if (!priv->scanning)
- goto exit;
-
- if (len < 24)
- goto exit;
-
- if (ieee80211_is_probe_resp(hdr->frame_control)) {
- el_off = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
- el = ((struct ieee80211_mgmt *)hdr)->u.probe_resp.variable;
- } else if (ieee80211_is_beacon(hdr->frame_control)) {
- el_off = offsetof(struct ieee80211_mgmt, u.beacon.variable);
- el = ((struct ieee80211_mgmt *)hdr)->u.beacon.variable;
- } else {
- goto exit;
- }
- len -= el_off;
-
- el = cfg80211_find_ie(WLAN_EID_DS_PARAMS, el, len);
- if (el && el[1] > 0)
- channel = el[2];
-
-exit:
- return ieee80211_channel_to_frequency(channel, IEEE80211_BAND_2GHZ);
-}
-
-static void at76_rx_tasklet(unsigned long param)
-{
- struct urb *urb = (struct urb *)param;
- struct at76_priv *priv = urb->context;
- struct at76_rx_buffer *buf;
- struct ieee80211_rx_status rx_status = { 0 };
-
- if (priv->device_unplugged) {
- at76_dbg(DBG_DEVSTART, "device unplugged");
- at76_dbg(DBG_DEVSTART, "urb status %d", urb->status);
- return;
- }
-
- if (!priv->rx_skb || !priv->rx_skb->data)
- return;
-
- buf = (struct at76_rx_buffer *)priv->rx_skb->data;
-
- if (urb->status != 0) {
- if (urb->status != -ENOENT && urb->status != -ECONNRESET)
- at76_dbg(DBG_URB,
- "%s %s: - nonzero Rx bulk status received: %d",
- __func__, wiphy_name(priv->hw->wiphy),
- urb->status);
- return;
- }
-
- at76_dbg(DBG_RX_ATMEL_HDR,
- "%s: rx frame: rate %d rssi %d noise %d link %d",
- wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi,
- buf->noise_level, buf->link_quality);
-
- skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
- skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength));
- at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data,
- priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len);
-
- rx_status.signal = buf->rssi;
- rx_status.flag |= RX_FLAG_DECRYPTED;
- rx_status.flag |= RX_FLAG_IV_STRIPPED;
- rx_status.band = IEEE80211_BAND_2GHZ;
- rx_status.freq = at76_guess_freq(priv);
-
- at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
- priv->rx_skb->len, priv->rx_skb->data_len);
- memcpy(IEEE80211_SKB_RXCB(priv->rx_skb), &rx_status, sizeof(rx_status));
- ieee80211_rx_irqsafe(priv->hw, priv->rx_skb);
-
- /* Use a new skb for the next receive */
- priv->rx_skb = NULL;
-
- at76_submit_rx_urb(priv);
-}
-
-/* Load firmware into kernel memory and parse it */
-static struct fwentry *at76_load_firmware(struct usb_device *udev,
- enum board_type board_type)
-{
- int ret;
- char *str;
- struct at76_fw_header *fwh;
- struct fwentry *fwe = &firmwares[board_type];
-
- mutex_lock(&fw_mutex);
-
- if (fwe->loaded) {
- at76_dbg(DBG_FW, "re-using previously loaded fw");
- goto exit;
- }
-
- at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname);
- ret = reject_firmware(&fwe->fw, fwe->fwname, &udev->dev);
- if (ret < 0) {
- dev_err(&udev->dev, "firmware %s not found!\n",
- fwe->fwname);
- dev_err(&udev->dev,
- "you may need to download the firmware from http://developer.berlios.de/projects/at76c503a/\n");
- goto exit;
- }
-
- at76_dbg(DBG_FW, "got it.");
- fwh = (struct at76_fw_header *)(fwe->fw->data);
-
- if (fwe->fw->size <= sizeof(*fwh)) {
- dev_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_err(&udev->dev,
- "board type mismatch, requested %u, got %u\n",
- board_type, fwe->board_type);
- goto exit;
- }
-
- fwe->fw_version.major = fwh->major;
- fwe->fw_version.minor = fwh->minor;
- fwe->fw_version.patch = fwh->patch;
- fwe->fw_version.build = fwh->build;
-
- str = (char *)fwh + le32_to_cpu(fwh->str_offset);
- fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset);
- fwe->intfw_size = le32_to_cpu(fwh->int_fw_len);
- fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset);
- fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len);
-
- fwe->loaded = 1;
-
- dev_printk(KERN_DEBUG, &udev->dev,
- "using firmware %s (version %d.%d.%d-%d)\n",
- fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build);
-
- at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type,
- le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len),
- le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len));
- at76_dbg(DBG_DEVSTART, "firmware id %s", str);
-
-exit:
- mutex_unlock(&fw_mutex);
-
- if (fwe->loaded)
- return fwe;
- else
- return NULL;
-}
-
-static int at76_join(struct at76_priv *priv)
-{
- struct at76_req_join join;
- int ret;
-
- memset(&join, 0, sizeof(struct at76_req_join));
- memcpy(join.essid, priv->essid, priv->essid_size);
- join.essid_size = priv->essid_size;
- memcpy(join.bssid, priv->bssid, ETH_ALEN);
- join.bss_type = INFRASTRUCTURE_MODE;
- join.channel = priv->channel;
- join.timeout = cpu_to_le16(2000);
-
- at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__);
- ret = at76_set_card_command(priv->udev, CMD_JOIN, &join,
- sizeof(struct at76_req_join));
-
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n",
- ret);
- return 0;
- }
-
- ret = at76_wait_completion(priv, CMD_JOIN);
- at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret);
- if (ret != CMD_STATUS_COMPLETE) {
- wiphy_err(priv->hw->wiphy, "at76_wait_completion failed: %d\n",
- ret);
- return 0;
- }
-
- at76_set_pm_mode(priv);
-
- return 0;
-}
-
-static void at76_work_join_bssid(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_join_bssid);
-
- if (priv->device_unplugged)
- return;
-
- mutex_lock(&priv->mtx);
-
- if (is_valid_ether_addr(priv->bssid))
- at76_join(priv);
-
- mutex_unlock(&priv->mtx);
-}
-
-static void at76_mac80211_tx_callback(struct urb *urb)
-{
- struct at76_priv *priv = urb->context;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
-
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-
- switch (urb->status) {
- case 0:
- /* success */
- info->flags |= IEEE80211_TX_STAT_ACK;
- break;
- case -ENOENT:
- case -ECONNRESET:
- /* fail, urb has been unlinked */
- /* FIXME: add error message */
- break;
- default:
- at76_dbg(DBG_URB, "%s - nonzero tx status received: %d",
- __func__, urb->status);
- break;
- }
-
- memset(&info->status, 0, sizeof(info->status));
-
- ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
-
- priv->tx_skb = NULL;
-
- ieee80211_wake_queues(priv->hw);
-}
-
-static void at76_mac80211_tx(struct ieee80211_hw *hw,
- struct ieee80211_tx_control *control,
- struct sk_buff *skb)
-{
- struct at76_priv *priv = hw->priv;
- struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
- int padding, submit_len, ret;
-
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-
- if (priv->tx_urb->status == -EINPROGRESS) {
- wiphy_err(priv->hw->wiphy,
- "%s called while tx urb is pending\n", __func__);
- dev_kfree_skb_any(skb);
- return;
- }
-
- /* The following code lines are important when the device is going to
- * authenticate with a new bssid. The driver must send CMD_JOIN before
- * an authentication frame is transmitted. For this to succeed, the
- * correct bssid of the AP must be known. As mac80211 does not inform
- * drivers about the bssid prior to the authentication process the
- * following workaround is necessary. If the TX frame is an
- * authentication frame extract the bssid and send the CMD_JOIN. */
- if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) {
- if (!ether_addr_equal_64bits(priv->bssid, mgmt->bssid)) {
- memcpy(priv->bssid, mgmt->bssid, ETH_ALEN);
- ieee80211_queue_work(hw, &priv->work_join_bssid);
- dev_kfree_skb_any(skb);
- return;
- }
- }
-
- ieee80211_stop_queues(hw);
-
- at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */
-
- WARN_ON(priv->tx_skb != NULL);
-
- priv->tx_skb = skb;
- padding = at76_calc_padding(skb->len);
- submit_len = AT76_TX_HDRLEN + skb->len + padding;
-
- /* setup 'Atmel' header */
- memset(tx_buffer, 0, sizeof(*tx_buffer));
- tx_buffer->padding = padding;
- tx_buffer->wlength = cpu_to_le16(skb->len);
- tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value;
- memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved));
- memcpy(tx_buffer->packet, skb->data, skb->len);
-
- at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
- wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength),
- tx_buffer->padding, tx_buffer->tx_rate);
-
- /* send stuff */
- at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len,
- "%s(): tx_buffer %d bytes:", __func__, submit_len);
- usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer,
- submit_len, at76_mac80211_tx_callback, priv);
- ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
- if (ret) {
- wiphy_err(priv->hw->wiphy, "error in tx submit urb: %d\n", ret);
- if (ret == -EINVAL)
- wiphy_err(priv->hw->wiphy,
- "-EINVAL: tx urb %p hcpriv %p complete %p\n",
- priv->tx_urb,
- priv->tx_urb->hcpriv, priv->tx_urb->complete);
- }
-}
-
-static int at76_mac80211_start(struct ieee80211_hw *hw)
-{
- struct at76_priv *priv = hw->priv;
- int ret;
-
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-
- mutex_lock(&priv->mtx);
-
- ret = at76_submit_rx_urb(priv);
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy, "open: submit_rx_urb failed: %d\n",
- ret);
- goto error;
- }
-
- at76_startup_device(priv);
-
- at76_start_monitor(priv);
-
-error:
- mutex_unlock(&priv->mtx);
-
- return 0;
-}
-
-static void at76_mac80211_stop(struct ieee80211_hw *hw)
-{
- struct at76_priv *priv = hw->priv;
-
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-
- cancel_delayed_work(&priv->dwork_hw_scan);
- cancel_work_sync(&priv->work_join_bssid);
- cancel_work_sync(&priv->work_set_promisc);
-
- mutex_lock(&priv->mtx);
-
- if (!priv->device_unplugged) {
- /* We are called by "ifconfig ethX down", not because the
- * device is not available anymore. */
- at76_set_radio(priv, 0);
-
- /* We unlink rx_urb because at76_open() re-submits it.
- * If unplugged, at76_delete_device() takes care of it. */
- usb_kill_urb(priv->rx_urb);
- }
-
- mutex_unlock(&priv->mtx);
-}
-
-static int at76_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct at76_priv *priv = hw->priv;
- int ret = 0;
-
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-
- mutex_lock(&priv->mtx);
-
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- priv->iw_mode = IW_MODE_INFRA;
- break;
- default:
- ret = -EOPNOTSUPP;
- goto exit;
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-
- return ret;
-}
-
-static void at76_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- at76_dbg(DBG_MAC80211, "%s()", __func__);
-}
-
-static void at76_dwork_hw_scan(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_hw_scan.work);
- int ret;
-
- if (priv->device_unplugged)
- return;
-
- mutex_lock(&priv->mtx);
-
- ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
- at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret);
-
- /* FIXME: add maximum time for scan to complete */
-
- if (ret != CMD_STATUS_COMPLETE) {
- ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
- SCAN_POLL_INTERVAL);
- mutex_unlock(&priv->mtx);
- return;
- }
-
- if (is_valid_ether_addr(priv->bssid))
- at76_join(priv);
-
- priv->scanning = false;
-
- mutex_unlock(&priv->mtx);
-
- ieee80211_scan_completed(priv->hw, false);
-
- ieee80211_wake_queues(priv->hw);
-}
-
-static int at76_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_scan_request *hw_req)
-{
- struct cfg80211_scan_request *req = &hw_req->req;
- struct at76_priv *priv = hw->priv;
- struct at76_req_scan scan;
- u8 *ssid = NULL;
- int ret, len = 0;
-
- at76_dbg(DBG_MAC80211, "%s():", __func__);
-
- if (priv->device_unplugged)
- return 0;
-
- mutex_lock(&priv->mtx);
-
- ieee80211_stop_queues(hw);
-
- memset(&scan, 0, sizeof(struct at76_req_scan));
- eth_broadcast_addr(scan.bssid);
-
- if (req->n_ssids) {
- scan.scan_type = SCAN_TYPE_ACTIVE;
- ssid = req->ssids[0].ssid;
- len = req->ssids[0].ssid_len;
- } else {
- scan.scan_type = SCAN_TYPE_PASSIVE;
- }
-
- if (len) {
- memcpy(scan.essid, ssid, len);
- scan.essid_size = len;
- }
-
- scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
- scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
- scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000);
- scan.international_scan = 0;
-
- at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__);
- ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
-
- if (ret < 0) {
- wiphy_err(priv->hw->wiphy, "CMD_SCAN failed: %d\n", ret);
- goto exit;
- }
-
- priv->scanning = true;
- ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
- SCAN_POLL_INTERVAL);
-
-exit:
- mutex_unlock(&priv->mtx);
-
- return 0;
-}
-
-static int at76_config(struct ieee80211_hw *hw, u32 changed)
-{
- struct at76_priv *priv = hw->priv;
-
- at76_dbg(DBG_MAC80211, "%s(): channel %d",
- __func__, hw->conf.chandef.chan->hw_value);
- at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:");
-
- mutex_lock(&priv->mtx);
-
- priv->channel = hw->conf.chandef.chan->hw_value;
-
- if (is_valid_ether_addr(priv->bssid))
- at76_join(priv);
- else
- at76_start_monitor(priv);
-
- mutex_unlock(&priv->mtx);
-
- return 0;
-}
-
-static void at76_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *conf,
- u32 changed)
-{
- struct at76_priv *priv = hw->priv;
-
- at76_dbg(DBG_MAC80211, "%s():", __func__);
-
- if (!(changed & BSS_CHANGED_BSSID))
- return;
-
- at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:");
-
- mutex_lock(&priv->mtx);
-
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
-
- if (is_valid_ether_addr(priv->bssid))
- /* mac80211 is joining a bss */
- at76_join(priv);
-
- mutex_unlock(&priv->mtx);
-}
-
-/* must be atomic */
-static void at76_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags, u64 multicast)
-{
- struct at76_priv *priv = hw->priv;
- int flags;
-
- at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x "
- "total_flags=0x%08x",
- __func__, changed_flags, *total_flags);
-
- flags = changed_flags & AT76_SUPPORTED_FILTERS;
- *total_flags = AT76_SUPPORTED_FILTERS;
-
- /* Bail out after updating flags to prevent a WARN_ON in mac80211. */
- if (priv->device_unplugged)
- return;
-
- /* FIXME: access to priv->promisc should be protected with
- * priv->mtx, but it's impossible because this function needs to be
- * atomic */
-
- if (flags && !priv->promisc) {
- /* mac80211 wants us to enable promiscuous mode */
- priv->promisc = 1;
- } else if (!flags && priv->promisc) {
- /* we need to disable promiscuous mode */
- priv->promisc = 0;
- } else
- return;
-
- ieee80211_queue_work(hw, &priv->work_set_promisc);
-}
-
-static int at76_set_wep(struct at76_priv *priv)
-{
- int ret = 0;
- struct mib_mac_wep *mib_data = &priv->mib_buf.data.wep_mib;
-
- priv->mib_buf.type = MIB_MAC_WEP;
- priv->mib_buf.size = sizeof(struct mib_mac_wep);
- priv->mib_buf.index = 0;
-
- memset(mib_data, 0, sizeof(*mib_data));
-
- if (priv->wep_enabled) {
- if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
- mib_data->encryption_level = 2;
- else
- mib_data->encryption_level = 1;
-
- /* always exclude unencrypted if WEP is active */
- mib_data->exclude_unencrypted = 1;
- } else {
- mib_data->exclude_unencrypted = 0;
- mib_data->encryption_level = 0;
- }
-
- mib_data->privacy_invoked = priv->wep_enabled;
- mib_data->wep_default_key_id = priv->wep_key_id;
- memcpy(mib_data->wep_default_keyvalue, priv->wep_keys,
- sizeof(priv->wep_keys));
-
- ret = at76_set_mib(priv, &priv->mib_buf);
-
- if (ret < 0)
- wiphy_err(priv->hw->wiphy,
- "set_mib (wep) failed: %d\n", ret);
-
- return ret;
-}
-
-static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- struct at76_priv *priv = hw->priv;
-
- int i;
-
- at76_dbg(DBG_MAC80211, "%s(): cmd %d key->cipher %d key->keyidx %d "
- "key->keylen %d",
- __func__, cmd, key->cipher, key->keyidx, key->keylen);
-
- if ((key->cipher != WLAN_CIPHER_SUITE_WEP40) &&
- (key->cipher != WLAN_CIPHER_SUITE_WEP104))
- return -EOPNOTSUPP;
-
- key->hw_key_idx = key->keyidx;
-
- mutex_lock(&priv->mtx);
-
- switch (cmd) {
- case SET_KEY:
- memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen);
- priv->wep_keys_len[key->keyidx] = key->keylen;
-
- /* FIXME: find out how to do this properly */
- priv->wep_key_id = key->keyidx;
-
- break;
- case DISABLE_KEY:
- default:
- priv->wep_keys_len[key->keyidx] = 0;
- break;
- }
-
- priv->wep_enabled = 0;
-
- for (i = 0; i < WEP_KEYS; i++) {
- if (priv->wep_keys_len[i] != 0)
- priv->wep_enabled = 1;
- }
-
- at76_set_wep(priv);
-
- mutex_unlock(&priv->mtx);
-
- return 0;
-}
-
-static const struct ieee80211_ops at76_ops = {
- .tx = at76_mac80211_tx,
- .add_interface = at76_add_interface,
- .remove_interface = at76_remove_interface,
- .config = at76_config,
- .bss_info_changed = at76_bss_info_changed,
- .configure_filter = at76_configure_filter,
- .start = at76_mac80211_start,
- .stop = at76_mac80211_stop,
- .hw_scan = at76_hw_scan,
- .set_key = at76_set_key,
-};
-
-/* Allocate network device and initialize private data */
-static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
-{
- struct ieee80211_hw *hw;
- struct at76_priv *priv;
-
- hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops);
- if (!hw) {
- printk(KERN_ERR DRIVER_NAME ": could not register"
- " ieee80211_hw\n");
- return NULL;
- }
-
- priv = hw->priv;
- priv->hw = hw;
-
- priv->udev = udev;
-
- mutex_init(&priv->mtx);
- INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc);
- INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx);
- INIT_WORK(&priv->work_join_bssid, at76_work_join_bssid);
- INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan);
-
- tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0);
-
- priv->pm_mode = AT76_PM_OFF;
- priv->pm_period = 0;
-
- /* unit us */
-
- 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_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_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)
- return -ENOMEM;
-
- at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
-
- return 0;
-}
-
-static struct ieee80211_rate at76_rates[] = {
- { .bitrate = 10, .hw_value = TX_RATE_1MBIT, },
- { .bitrate = 20, .hw_value = TX_RATE_2MBIT, },
- { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, },
- { .bitrate = 110, .hw_value = TX_RATE_11MBIT, },
-};
-
-static struct ieee80211_channel at76_channels[] = {
- { .center_freq = 2412, .hw_value = 1 },
- { .center_freq = 2417, .hw_value = 2 },
- { .center_freq = 2422, .hw_value = 3 },
- { .center_freq = 2427, .hw_value = 4 },
- { .center_freq = 2432, .hw_value = 5 },
- { .center_freq = 2437, .hw_value = 6 },
- { .center_freq = 2442, .hw_value = 7 },
- { .center_freq = 2447, .hw_value = 8 },
- { .center_freq = 2452, .hw_value = 9 },
- { .center_freq = 2457, .hw_value = 10 },
- { .center_freq = 2462, .hw_value = 11 },
- { .center_freq = 2467, .hw_value = 12 },
- { .center_freq = 2472, .hw_value = 13 },
- { .center_freq = 2484, .hw_value = 14 }
-};
-
-static struct ieee80211_supported_band at76_supported_band = {
- .channels = at76_channels,
- .n_channels = ARRAY_SIZE(at76_channels),
- .bitrates = at76_rates,
- .n_bitrates = ARRAY_SIZE(at76_rates),
-};
-
-/* Register network device and initialize the hardware */
-static int at76_init_new_device(struct at76_priv *priv,
- struct usb_interface *interface)
-{
- struct wiphy *wiphy;
- size_t len;
- 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_err(&interface->dev, "cannot get MAC address\n");
- goto exit;
- }
-
- priv->domain = at76_get_reg_domain(priv->regulatory_domain);
-
- priv->channel = DEF_CHANNEL;
- priv->iw_mode = IW_MODE_INFRA;
- priv->rts_threshold = DEF_RTS_THRESHOLD;
- priv->frag_threshold = DEF_FRAG_THRESHOLD;
- priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT;
- priv->txrate = TX_RATE_AUTO;
- priv->preamble_type = PREAMBLE_TYPE_LONG;
- priv->beacon_period = 100;
- priv->auth_mode = WLAN_AUTH_OPEN;
- priv->scan_min_time = DEF_SCAN_MIN_TIME;
- priv->scan_max_time = DEF_SCAN_MAX_TIME;
- priv->scan_mode = SCAN_TYPE_ACTIVE;
- priv->device_unplugged = 0;
-
- /* mac80211 initialisation */
- wiphy = priv->hw->wiphy;
- priv->hw->wiphy->max_scan_ssids = 1;
- priv->hw->wiphy->max_scan_ie_len = 0;
- priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
- priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band;
- ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
- ieee80211_hw_set(priv->hw, SIGNAL_UNSPEC);
- priv->hw->max_signal = 100;
-
- SET_IEEE80211_DEV(priv->hw, &interface->dev);
- SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
-
- len = sizeof(wiphy->fw_version);
- snprintf(wiphy->fw_version, len, "%d.%d.%d-%d",
- priv->fw_version.major, priv->fw_version.minor,
- priv->fw_version.patch, priv->fw_version.build);
-
- wiphy->hw_version = priv->board_type;
-
- ret = ieee80211_register_hw(priv->hw);
- if (ret) {
- printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n",
- ret);
- goto exit;
- }
-
- priv->mac80211_registered = 1;
-
- wiphy_info(priv->hw->wiphy, "USB %s, MAC %pM, firmware %d.%d.%d-%d\n",
- dev_name(&interface->dev), priv->mac_addr,
- priv->fw_version.major, priv->fw_version.minor,
- priv->fw_version.patch, priv->fw_version.build);
- wiphy_info(priv->hw->wiphy, "regulatory domain 0x%02x: %s\n",
- priv->regulatory_domain, priv->domain->name);
-
-exit:
- return ret;
-}
-
-static void at76_delete_device(struct at76_priv *priv)
-{
- at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
-
- /* The device is gone, don't bother turning it off */
- priv->device_unplugged = 1;
-
- tasklet_kill(&priv->rx_tasklet);
-
- if (priv->mac80211_registered)
- ieee80211_unregister_hw(priv->hw);
-
- 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(priv->bulk_out_buffer);
-
- del_timer_sync(&ledtrig_tx_timer);
-
- kfree_skb(priv->rx_skb);
-
- at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw",
- __func__);
- ieee80211_free_hw(priv->hw);
-
- at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
-}
-
-static int at76_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
-{
- int ret;
- struct at76_priv *priv;
- struct fwentry *fwe;
- struct usb_device *udev;
- int op_mode;
- int need_ext_fw = 0;
- struct mib_fw_version *fwv = NULL;
- int board_type = (int)id->driver_info;
-
- udev = usb_get_dev(interface_to_usbdev(interface));
-
- fwv = kmalloc(sizeof(*fwv), GFP_KERNEL);
- if (!fwv) {
- ret = -ENOMEM;
- goto exit;
- }
-
- /* Load firmware into kernel memory */
- fwe = at76_load_firmware(udev, board_type);
- if (!fwe) {
- ret = -ENOENT;
- goto exit;
- }
-
- 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_err(&interface->dev,
- "cannot handle a device in HW_CONFIG_MODE\n");
- ret = -EBUSY;
- goto exit;
- }
-
- 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_err(&interface->dev,
- "error %d downloading internal firmware\n",
- ret);
- goto exit;
- }
- usb_put_dev(udev);
- goto exit;
- }
-
- /* 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 < 0)
- goto exit;
-
- /* Re-check firmware version */
- ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
- if (ret < 0) {
- dev_err(&interface->dev,
- "error %d getting firmware version\n", ret);
- goto exit;
- }
- }
-
- priv = at76_alloc_new_device(udev);
- if (!priv) {
- ret = -ENOMEM;
- goto exit;
- }
-
- 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);
-
-exit:
- kfree(fwv);
- if (ret < 0)
- 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;
-
- wiphy_info(priv->hw->wiphy, "disconnecting\n");
- at76_delete_device(priv);
- usb_put_dev(priv->udev);
- dev_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,
- .disable_hub_initiated_lpm = 1,
-};
-
-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++)
- release_firmware(firmwares[i].fw);
- led_trigger_unregister_simple(ledtrig_tx);
-}
-
-module_param_named(debug, at76_debug, uint, 0600);
-MODULE_PARM_DESC(debug, "Debugging level");
-
-module_init(at76_mod_init);
-module_exit(at76_mod_exit);
-
-MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>");
-MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>");
-MODULE_AUTHOR("Alex <alex@foogod.com>");
-MODULE_AUTHOR("Nick Jones");
-MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>");
-MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
-MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
-MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>");
-MODULE_AUTHOR("Sebastian Smolorz <sesmo@gmx.net>");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");