diff options
author | Kalle Valo <kalle.valo@iki.fi> | 2009-02-07 09:27:10 +0200 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-02-27 14:52:44 -0500 |
commit | 1264b951463a00efebe1bb596499aaad620ec8af (patch) | |
tree | df45bdbef79fe10104144f817e17407e55fe423b /drivers/net/wireless/at76c50x-usb.c | |
parent | 41d2f291d78fb90ec26122c1c67d0c151965b378 (diff) |
at76c50x-usb: add driver
This is a driver for usb devices based on at76c50x chipset. This is
a mac80211 port of the original at76_usb driver.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/at76c50x-usb.c')
-rw-r--r-- | drivers/net/wireless/at76c50x-usb.c | 2465 |
1 files changed, 2465 insertions, 0 deletions
diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c new file mode 100644 index 000000000000..e8868aef02b9 --- /dev/null +++ b/drivers/net/wireless/at76c50x-usb.c @@ -0,0 +1,2465 @@ +/* + * at76c503/at76c505 USB driver + * + * Copyright (c) 2002 - 2003 Oliver Kurth + * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de> + * Copyright (c) 2004 Nick Jones + * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com> + * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org> + * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This file is part of the Berlios driver for WLAN USB devices based on the + * Atmel AT76C503A/505/505A. + * + * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed + * + * TODO for the mac80211 port: + * o adhoc support + * o RTS/CTS support + * o Power Save Mode support + * o support for short/long preambles + * o export variables through debugfs/sysfs + * o remove hex2str + * o remove mac2str + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/spinlock.h> +#include <linux/list.h> +#include <linux/usb.h> +#include <linux/netdevice.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/wireless.h> +#include <net/iw_handler.h> +#include <net/ieee80211_radiotap.h> +#include <linux/firmware.h> +#include <linux/leds.h> +#include <net/mac80211.h> + +#include "at76c50x-usb.h" + +/* Version information */ +#define DRIVER_NAME "at76c50x-usb" +#define DRIVER_VERSION "0.17" +#define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" + +/* at76_debug bits */ +#define DBG_PROGRESS 0x00000001 /* authentication/accociation */ +#define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ +#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ +#define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ +#define DBG_TX_DATA 0x00000010 /* tx header */ +#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ +#define DBG_TX_MGMT 0x00000040 /* tx management */ +#define DBG_RX_DATA 0x00000080 /* rx data header */ +#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ +#define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ +#define DBG_RX_BEACON 0x00000400 /* rx beacon */ +#define DBG_RX_CTRL 0x00000800 /* rx control */ +#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ +#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ +#define DBG_DEVSTART 0x00004000 /* fw download, device start */ +#define DBG_URB 0x00008000 /* rx urb status, ... */ +#define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ +#define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ +#define DBG_PM 0x00040000 /* power management settings */ +#define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ +#define DBG_PARAMS 0x00100000 /* show configured parameters */ +#define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ +#define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ +#define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ +#define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ +#define DBG_MIB 0x02000000 /* dump all MIBs on startup */ +#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ +#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ +#define DBG_FW 0x10000000 /* firmware download */ +#define DBG_DFU 0x20000000 /* device firmware upgrade */ +#define DBG_CMD 0x40000000 +#define DBG_MAC80211 0x80000000 + +#define DBG_DEFAULTS 0 + +/* Use our own dbg macro */ +#define at76_dbg(bits, format, arg...) \ + do { \ + if (at76_debug & (bits)) \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + } while (0) + +#define at76_dbg_dump(bits, buf, len, format, arg...) \ + do { \ + if (at76_debug & (bits)) { \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \ + buf, len); \ + } \ + } while (0) + +static int at76_debug = DBG_DEFAULTS; + +/* Protect against concurrent firmware loading and parsing */ +static struct mutex fw_mutex; + +static struct fwentry firmwares[] = { + [0] = { "" }, + [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, + [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, + [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, + [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, + [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, + [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, + [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, + [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, +}; + +#define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) + +static struct usb_device_id dev_table[] = { + /* + * at76c503-i3861 + */ + /* Generic AT76C503/3861 device */ + { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Linksys WUSB11 v2.1/v2.6 */ + { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Netgear MA101 rev. A */ + { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Tekram U300C / Allnet ALL0193 */ + { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* HP HN210W J7801A */ + { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Sitecom/Z-Com/Zyxel M4Y-750 */ + { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink/Askey WLL013 (intersil) */ + { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ + { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BenQ AWL300 */ + { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Addtron AWU-120, Compex WLU11 */ + { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Intel AP310 AnyPoint II USB */ + { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink L11U */ + { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Arescom WL-210, FCC id 07J-GL2411USB */ + { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* I-O DATA WN-B11/USB */ + { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BT Voyager 1010 */ + { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* + * at76c503-i3863 + */ + /* Generic AT76C503/3863 device */ + { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* Samsung SWL-2100U */ + { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* + * at76c503-rfmd + */ + /* Generic AT76C503/RFMD device */ + { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* Dynalink/Askey WLL013 (rfmd) */ + { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, + /* Linksys WUSB11 v2.6 */ + { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, + /* Network Everywhere NWU11B */ + { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, + /* Netgear MA101 rev. B */ + { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* D-Link DWL-120 rev. E */ + { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, + /* Actiontec 802UAT1, HWU01150-01UK */ + { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* AirVast W-Buddie WN210 */ + { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* Dick Smith Electronics XH1153 802.11b USB adapter */ + { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, + /* CNet CNUSB611 */ + { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, + /* FiberLine FL-WL200U */ + { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, + /* BenQ AWL400 USB stick */ + { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, + /* 3Com 3CRSHEW696 */ + { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, + /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ + { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, + /* Belkin F5D6050, version 2 */ + { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, + /* iBlitzz, BWU613 (not *B or *SB) */ + { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, + /* Gigabyte GN-WLBM101 */ + { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, + /* Planex GW-US11S */ + { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, + /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ + { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini */ + { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini2 */ + { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, + /* Uniden PCW100 */ + { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, + /* + * at76c503-rfmd-acc + */ + /* SMC2664W */ + { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ + { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* + * at76c505-rfmd + */ + /* Generic AT76C505/RFMD */ + { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, + /* + * at76c505-rfmd2958 + */ + /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ + { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Fiberline FL-WL240U */ + { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, + /* CNet CNUSB-611G */ + { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Linksys WUSB11 v2.8 */ + { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ + { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Corega WLAN USB Stick 11 */ + { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Microstar MSI Box MS6978 */ + { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, + /* + * at76c505a-rfmd2958 + */ + /* Generic AT76C505A device */ + { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, + /* Generic AT76C505AS device */ + { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, + /* Siemens Gigaset USB WLAN Adapter 11 */ + { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, + /* + * at76c505amx-rfmd + */ + /* Generic AT76C505AMX device */ + { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, + { } +}; + +MODULE_DEVICE_TABLE(usb, dev_table); + +/* Supported rates of this hardware, bit 7 marks basic rates */ +static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; + +static const char *const preambles[] = { "long", "short", "auto" }; + +/* Firmware download */ +/* DFU states */ +#define STATE_IDLE 0x00 +#define STATE_DETACH 0x01 +#define STATE_DFU_IDLE 0x02 +#define STATE_DFU_DOWNLOAD_SYNC 0x03 +#define STATE_DFU_DOWNLOAD_BUSY 0x04 +#define STATE_DFU_DOWNLOAD_IDLE 0x05 +#define STATE_DFU_MANIFEST_SYNC 0x06 +#define STATE_DFU_MANIFEST 0x07 +#define STATE_DFU_MANIFEST_WAIT_RESET 0x08 +#define STATE_DFU_UPLOAD_IDLE 0x09 +#define STATE_DFU_ERROR 0x0a + +/* DFU commands */ +#define DFU_DETACH 0 +#define DFU_DNLOAD 1 +#define DFU_UPLOAD 2 +#define DFU_GETSTATUS 3 +#define DFU_CLRSTATUS 4 +#define DFU_GETSTATE 5 +#define DFU_ABORT 6 + +#define FW_BLOCK_SIZE 1024 + +struct dfu_status { + unsigned char status; + unsigned char poll_timeout[3]; + unsigned char state; + unsigned char string; +} __attribute__((packed)); + +static inline int at76_is_intersil(enum board_type board) +{ + return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); +} + +static inline int at76_is_503rfmd(enum board_type board) +{ + return (board == BOARD_503 || board == BOARD_503_ACC); +} + +static inline int at76_is_505a(enum board_type board) +{ + return (board == BOARD_505A || board == BOARD_505AMX); +} + +/* Load a block of the first (internal) part of the firmware */ +static int at76_load_int_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, + USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE, blockno, 0, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static int at76_dfu_get_status(struct usb_device *udev, + struct dfu_status *status) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, status, sizeof(struct dfu_status), + USB_CTRL_GET_TIMEOUT); + return ret; +} + +static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); + return ret; +} + +/* Convert timeout from the DFU status to jiffies */ +static inline unsigned long at76_get_timeout(struct dfu_status *s) +{ + return msecs_to_jiffies((s->poll_timeout[2] << 16) + | (s->poll_timeout[1] << 8) + | (s->poll_timeout[0])); +} + +/* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use + * its value in jiffies in the MANIFEST_SYNC state. */ +static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, + int manifest_sync_timeout) +{ + u8 *block; + struct dfu_status dfu_stat_buf; + int ret = 0; + int need_dfu_state = 1; + int is_done = 0; + u8 dfu_state = 0; + u32 dfu_timeout = 0; + int bsize = 0; + int blockno = 0; + + at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, + manifest_sync_timeout); + + if (!size) { + dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); + return -EINVAL; + } + + block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return -ENOMEM; + + do { + if (need_dfu_state) { + ret = at76_dfu_get_state(udev, &dfu_state); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "cannot get DFU state: %d\n", ret); + goto exit; + } + need_dfu_state = 0; + } + + switch (dfu_state) { + case STATE_DFU_DOWNLOAD_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret >= 0) { + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + } else + dev_printk(KERN_ERR, &udev->dev, + "at76_dfu_get_status returned %d\n", + ret); + break; + + case STATE_DFU_DOWNLOAD_BUSY: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); + need_dfu_state = 1; + + at76_dbg(DBG_DFU, "DFU: Resetting device"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_DOWNLOAD_IDLE: + at76_dbg(DBG_DFU, "DOWNLOAD..."); + /* fall through */ + case STATE_DFU_IDLE: + at76_dbg(DBG_DFU, "DFU IDLE"); + + bsize = min_t(int, size, FW_BLOCK_SIZE); + memcpy(block, buf, bsize); + at76_dbg(DBG_DFU, "int fw, size left = %5d, " + "bsize = %4d, blockno = %2d", size, bsize, + blockno); + ret = + at76_load_int_fw_block(udev, blockno, block, bsize); + buf += bsize; + size -= bsize; + blockno++; + + if (ret != bsize) + dev_printk(KERN_ERR, &udev->dev, + "at76_load_int_fw_block " + "returned %d\n", ret); + need_dfu_state = 1; + break; + + case STATE_DFU_MANIFEST_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); + + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret < 0) + break; + + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + + /* override the timeout from the status response, + needed for AT76C505A */ + if (manifest_sync_timeout > 0) + dfu_timeout = manifest_sync_timeout; + + at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_MANIFEST: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); + is_done = 1; + break; + + case STATE_DFU_MANIFEST_WAIT_RESET: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); + is_done = 1; + break; + + case STATE_DFU_UPLOAD_IDLE: + at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); + break; + + case STATE_DFU_ERROR: + at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); + ret = -EPIPE; + break; + + default: + at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); + ret = -EINVAL; + break; + } + } while (!is_done && (ret >= 0)); + +exit: + kfree(block); + if (ret >= 0) + ret = 0; + + return ret; +} + +#define HEX2STR_BUFFERS 4 +#define HEX2STR_MAX_LEN 64 +#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) + +/* Convert binary data into hex string */ +static char *hex2str(void *buf, int len) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; + char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; + char *obuf = ret; + u8 *ibuf = buf; + + if (len > HEX2STR_MAX_LEN) + len = HEX2STR_MAX_LEN; + + if (len <= 0) { + ret[0] = '\0'; + return ret; + } + + while (len--) { + *obuf++ = BIN2HEX(*ibuf >> 4); + *obuf++ = BIN2HEX(*ibuf & 0xf); + *obuf++ = '-'; + ibuf++; + } + *(--obuf) = '\0'; + + return ret; +} + +#define MAC2STR_BUFFERS 4 + +static inline char *mac2str(u8 *mac) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[MAC2STR_BUFFERS][6 * 3]; + char *str; + + str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; + sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + return str; +} + +/* LED trigger */ +static int tx_activity; +static void at76_ledtrig_tx_timerfunc(unsigned long data); +static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); +DEFINE_LED_TRIGGER(ledtrig_tx); + +static void at76_ledtrig_tx_timerfunc(unsigned long data) +{ + static int tx_lastactivity; + + if (tx_lastactivity != tx_activity) { + tx_lastactivity = tx_activity; + led_trigger_event(ledtrig_tx, LED_FULL); + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); + } else + led_trigger_event(ledtrig_tx, LED_OFF); +} + +static void at76_ledtrig_tx_activity(void) +{ + tx_activity++; + if (!timer_pending(&ledtrig_tx_timer)) + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); +} + +static int at76_remap(struct usb_device *udev) +{ + int ret; + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, + USB_TYPE_VENDOR | USB_DIR_OUT | + USB_RECIP_INTERFACE, 0, 0, NULL, 0, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + return 0; +} + +static int at76_get_op_mode(struct usb_device *udev) +{ + int ret; + u8 op_mode; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x01, 0, &op_mode, 1, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + else if (ret < 1) + return -EIO; + else + return op_mode; +} + +/* Load a block of the second ("external") part of the firmware */ +static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0x0802, blockno, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static inline int at76_get_hw_cfg(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0a02, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Intersil boards use a different "value" for GetHWConfig requests */ +static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0902, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Get the hardware configuration for the adapter and put it to the appropriate + * fields of 'priv' (the GetHWConfig request and interpretation of the result + * depends on the board type) */ +static int at76_get_hw_config(struct at76_priv *priv) +{ + int ret; + union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); + + if (!hwcfg) + return -ENOMEM; + + if (at76_is_intersil(priv->board_type)) { + ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, + sizeof(hwcfg->i)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->i.regulatory_domain; + } else if (at76_is_503rfmd(priv->board_type)) { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r3.regulatory_domain; + } else { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r5.regulatory_domain; + } + +exit: + kfree(hwcfg); + if (ret < 0) + printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static struct reg_domain const *at76_get_reg_domain(u16 code) +{ + int i; + static struct reg_domain const fd_tab[] = { + { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ + { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ + { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ + { 0x31, "Spain", 0x600 }, /* ch 10-11 */ + { 0x32, "France", 0x1e00 }, /* ch 10-13 */ + { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ + { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ + { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ + { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ + }; + + /* Last entry is fallback for unknown domain code */ + for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) + if (code == fd_tab[i].code) + break; + + return &fd_tab[i]; +} + +static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, + int buf_size) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, + USB_CTRL_GET_TIMEOUT); + if (ret >= 0 && ret != buf_size) + return -EIO; + return ret; +} + +/* Return positive number for status, negative for an error */ +static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) +{ + u8 stat_buf[40]; + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, cmd, 0, stat_buf, + sizeof(stat_buf), USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + + return stat_buf[5]; +} + +#define MAKE_CMD_CASE(c) case (c): return #c + +static const char *at76_get_cmd_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_CASE(CMD_SET_MIB); + MAKE_CMD_CASE(CMD_GET_MIB); + MAKE_CMD_CASE(CMD_SCAN); + MAKE_CMD_CASE(CMD_JOIN); + MAKE_CMD_CASE(CMD_START_IBSS); + MAKE_CMD_CASE(CMD_RADIO_ON); + MAKE_CMD_CASE(CMD_RADIO_OFF); + MAKE_CMD_CASE(CMD_STARTUP); + } + + return "UNKNOWN"; +} + +static int at76_set_card_command(struct usb_device *udev, int cmd, void *buf, + int buf_size) +{ + int ret; + struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + + buf_size, GFP_KERNEL); + + if (!cmd_buf) + return -ENOMEM; + + cmd_buf->cmd = cmd; + cmd_buf->reserved = 0; + cmd_buf->size = cpu_to_le16(buf_size); + memcpy(cmd_buf->data, buf, buf_size); + + at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, + "issuing command %s (0x%02x)", + at76_get_cmd_string(cmd), cmd); + + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0, 0, cmd_buf, + sizeof(struct at76_command) + buf_size, + USB_CTRL_GET_TIMEOUT); + kfree(cmd_buf); + return ret; +} + +#define MAKE_CMD_STATUS_CASE(c) case (c): return #c +static const char *at76_get_cmd_status_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); + MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); + MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); + MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); + MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); + MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); + } + + return "UNKNOWN"; +} + +/* Wait until the command is completed */ +static int at76_wait_completion(struct at76_priv *priv, int cmd) +{ + int status = 0; + unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; + + do { + status = at76_get_cmd_status(priv->udev, cmd); + if (status < 0) { + printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", + wiphy_name(priv->hw->wiphy), status); + break; + } + + at76_dbg(DBG_WAIT_COMPLETE, + "%s: Waiting on cmd %d, status = %d (%s)", + wiphy_name(priv->hw->wiphy), cmd, status, + at76_get_cmd_status_string(status)); + + if (status != CMD_STATUS_IN_PROGRESS + && status != CMD_STATUS_IDLE) + break; + + schedule_timeout_interruptible(HZ / 10); /* 100 ms */ + if (time_after(jiffies, timeout)) { + printk(KERN_ERR + "%s: completion timeout for command %d\n", + wiphy_name(priv->hw->wiphy), cmd); + status = -ETIMEDOUT; + break; + } + } while (1); + + return status; +} + +static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) +{ + int ret; + + ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, + offsetof(struct set_mib_buffer, + data) + buf->size); + if (ret < 0) + return ret; + + ret = at76_wait_completion(priv, CMD_SET_MIB); + if (ret != CMD_STATUS_COMPLETE) { + printk(KERN_INFO + "%s: set_mib: at76_wait_completion failed " + "with %d\n", wiphy_name(priv->hw->wiphy), ret); + ret = -EIO; + } + + return ret; +} + +/* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ +static int at76_set_radio(struct at76_priv *priv, int enable) +{ + int ret; + int cmd; + + if (priv->radio_on == enable) + return 0; + + cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; + + ret = at76_set_card_command(priv->udev, cmd, NULL, 0); + if (ret < 0) + printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", + wiphy_name(priv->hw->wiphy), cmd, ret); + else + ret = 1; + + priv->radio_on = enable; + return ret; +} + +/* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ +static int at76_set_pm_mode(struct at76_priv *priv) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC_MGMT; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); + priv->mib_buf.data.byte = priv->pm_mode; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_preamble(struct at76_priv *priv, u8 type) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, preamble_type); + priv->mib_buf.data.byte = type; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_frag(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_rts(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); + priv->mib_buf.data.byte = onoff; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static void at76_dump_mib_mac_addr(struct at76_priv *priv) +{ + int i; + int ret; + struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, + sizeof(struct mib_mac_addr)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", + wiphy_name(priv->hw->wiphy), + mac2str(m->mac_addr), m->res[0], m->res[1]); + for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " + "status %d", wiphy_name(priv->hw->wiphy), i, + mac2str(m->group_addr[i]), m->group_addr_status[i]); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_wep(struct at76_priv *priv) +{ + int i; + int ret; + int key_len; + struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, + sizeof(struct mib_mac_wep)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " + "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " + "encr_level %u key %d", wiphy_name(priv->hw->wiphy), + m->privacy_invoked, m->wep_default_key_id, + m->wep_key_mapping_len, m->exclude_unencrypted, + le32_to_cpu(m->wep_icv_error_count), + le32_to_cpu(m->wep_excluded_count), m->encryption_level, + m->wep_default_key_id); + + key_len = (m->encryption_level == 1) ? + WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; + + for (i = 0; i < WEP_KEYS; i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", + wiphy_name(priv->hw->wiphy), i, + hex2str(m->wep_default_keyvalue[i], key_len)); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) +{ + int ret; + struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, + sizeof(struct mib_mac_mgmt)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " + "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " + "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " + "current_bssid %s current_essid %s current_bss_type %d " + "pm_mode %d ibss_change %d res %d " + "multi_domain_capability_implemented %d " + "international_roaming %d country_string %.3s", + wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), + le16_to_cpu(m->CFP_max_duration), + le16_to_cpu(m->medium_occupancy_limit), + le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), + m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, + m->CFP_period, mac2str(m->current_bssid), + hex2str(m->current_essid, IW_ESSID_MAX_SIZE), + m->current_bss_type, m->power_mgmt_mode, m->ibss_change, + m->res, m->multi_domain_capability_implemented, + m->multi_domain_capability_enabled, m->country_string); +exit: + kfree(m); +} + +static void at76_dump_mib_mac(struct at76_priv *priv) +{ + int ret; + struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " + "max_rx_lifetime %d frag_threshold %d rts_threshold %d " + "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " + "scan_type %d scan_channel %d probe_delay %u " + "min_channel_time %d max_channel_time %d listen_int %d " + "desired_ssid %s desired_bssid %s desired_bsstype %d", + wiphy_name(priv->hw->wiphy), + le32_to_cpu(m->max_tx_msdu_lifetime), + le32_to_cpu(m->max_rx_lifetime), + le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), + le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), + m->short_retry_time, m->long_retry_time, m->scan_type, + m->scan_channel, le16_to_cpu(m->probe_delay), |