Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1 | /* |
| 2 | * at76c503/at76c505 USB driver |
| 3 | * |
| 4 | * Copyright (c) 2002 - 2003 Oliver Kurth |
| 5 | * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de> |
| 6 | * Copyright (c) 2004 Nick Jones |
| 7 | * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com> |
| 8 | * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation; either version 2 of |
| 13 | * the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This file is part of the Berlios driver for WLAN USB devices based on the |
| 16 | * Atmel AT76C503A/505/505A. |
| 17 | * |
| 18 | * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed |
| 19 | */ |
| 20 | |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/sched.h> |
| 24 | #include <linux/errno.h> |
| 25 | #include <linux/slab.h> |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/spinlock.h> |
| 28 | #include <linux/list.h> |
| 29 | #include <linux/usb.h> |
| 30 | #include <linux/netdevice.h> |
| 31 | #include <linux/if_arp.h> |
| 32 | #include <linux/etherdevice.h> |
| 33 | #include <linux/ethtool.h> |
| 34 | #include <linux/wireless.h> |
| 35 | #include <net/iw_handler.h> |
| 36 | #include <net/ieee80211_radiotap.h> |
| 37 | #include <linux/firmware.h> |
| 38 | #include <linux/leds.h> |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 39 | #include <linux/ieee80211.h> |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 40 | |
| 41 | #include "at76_usb.h" |
| 42 | |
| 43 | /* Version information */ |
| 44 | #define DRIVER_NAME "at76_usb" |
| 45 | #define DRIVER_VERSION "0.17" |
| 46 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" |
| 47 | |
| 48 | /* at76_debug bits */ |
| 49 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ |
| 50 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ |
| 51 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ |
| 52 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ |
| 53 | #define DBG_TX_DATA 0x00000010 /* tx header */ |
| 54 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ |
| 55 | #define DBG_TX_MGMT 0x00000040 /* tx management */ |
| 56 | #define DBG_RX_DATA 0x00000080 /* rx data header */ |
| 57 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ |
| 58 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ |
| 59 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ |
| 60 | #define DBG_RX_CTRL 0x00000800 /* rx control */ |
| 61 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ |
| 62 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ |
| 63 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ |
| 64 | #define DBG_URB 0x00008000 /* rx urb status, ... */ |
| 65 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ |
| 66 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ |
| 67 | #define DBG_PM 0x00040000 /* power management settings */ |
| 68 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ |
| 69 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ |
| 70 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ |
| 71 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ |
| 72 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ |
| 73 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ |
| 74 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ |
| 75 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ |
| 76 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ |
| 77 | #define DBG_FW 0x10000000 /* firmware download */ |
| 78 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ |
| 79 | |
| 80 | #define DBG_DEFAULTS 0 |
| 81 | |
| 82 | /* Use our own dbg macro */ |
| 83 | #define at76_dbg(bits, format, arg...) \ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 84 | do { \ |
| 85 | if (at76_debug & (bits)) \ |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 86 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , ## arg); \ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 87 | } while (0) |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 88 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 89 | static int at76_debug = DBG_DEFAULTS; |
| 90 | |
| 91 | /* Protect against concurrent firmware loading and parsing */ |
| 92 | static struct mutex fw_mutex; |
| 93 | |
| 94 | static struct fwentry firmwares[] = { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 95 | [0] = {""}, |
| 96 | [BOARD_503_ISL3861] = {"atmel_at76c503-i3861.bin"}, |
| 97 | [BOARD_503_ISL3863] = {"atmel_at76c503-i3863.bin"}, |
| 98 | [BOARD_503] = {"atmel_at76c503-rfmd.bin"}, |
| 99 | [BOARD_503_ACC] = {"atmel_at76c503-rfmd-acc.bin"}, |
| 100 | [BOARD_505] = {"atmel_at76c505-rfmd.bin"}, |
| 101 | [BOARD_505_2958] = {"atmel_at76c505-rfmd2958.bin"}, |
| 102 | [BOARD_505A] = {"atmel_at76c505a-rfmd2958.bin"}, |
| 103 | [BOARD_505AMX] = {"atmel_at76c505amx-rfmd.bin"}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 104 | }; |
| 105 | |
| 106 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) |
| 107 | |
| 108 | static struct usb_device_id dev_table[] = { |
| 109 | /* |
| 110 | * at76c503-i3861 |
| 111 | */ |
| 112 | /* Generic AT76C503/3861 device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 113 | {USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 114 | /* Linksys WUSB11 v2.1/v2.6 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 115 | {USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 116 | /* Netgear MA101 rev. A */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 117 | {USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 118 | /* Tekram U300C / Allnet ALL0193 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 119 | {USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 120 | /* HP HN210W J7801A */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 121 | {USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 122 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 123 | {USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 124 | /* Dynalink/Askey WLL013 (intersil) */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 125 | {USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 126 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 127 | {USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 128 | /* BenQ AWL300 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 129 | {USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 130 | /* Addtron AWU-120, Compex WLU11 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 131 | {USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 132 | /* Intel AP310 AnyPoint II USB */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 133 | {USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 134 | /* Dynalink L11U */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 135 | {USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 136 | /* Arescom WL-210, FCC id 07J-GL2411USB */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 137 | {USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 138 | /* I-O DATA WN-B11/USB */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 139 | {USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 140 | /* BT Voyager 1010 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 141 | {USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 142 | /* |
| 143 | * at76c503-i3863 |
| 144 | */ |
| 145 | /* Generic AT76C503/3863 device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 146 | {USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 147 | /* Samsung SWL-2100U */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 148 | {USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 149 | /* |
| 150 | * at76c503-rfmd |
| 151 | */ |
| 152 | /* Generic AT76C503/RFMD device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 153 | {USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 154 | /* Dynalink/Askey WLL013 (rfmd) */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 155 | {USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 156 | /* Linksys WUSB11 v2.6 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 157 | {USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 158 | /* Network Everywhere NWU11B */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 159 | {USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 160 | /* Netgear MA101 rev. B */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 161 | {USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 162 | /* D-Link DWL-120 rev. E */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 163 | {USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 164 | /* Actiontec 802UAT1, HWU01150-01UK */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 165 | {USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 166 | /* AirVast W-Buddie WN210 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 167 | {USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 168 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 169 | {USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 170 | /* CNet CNUSB611 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 171 | {USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 172 | /* FiberLine FL-WL200U */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 173 | {USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 174 | /* BenQ AWL400 USB stick */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 175 | {USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 176 | /* 3Com 3CRSHEW696 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 177 | {USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 178 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 179 | {USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 180 | /* Belkin F5D6050, version 2 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 181 | {USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 182 | /* iBlitzz, BWU613 (not *B or *SB) */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 183 | {USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 184 | /* Gigabyte GN-WLBM101 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 185 | {USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 186 | /* Planex GW-US11S */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 187 | {USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 188 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 189 | {USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 190 | /* Corega Wireless LAN USB-11 mini */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 191 | {USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 192 | /* Corega Wireless LAN USB-11 mini2 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 193 | {USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 194 | /* Uniden PCW100 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 195 | {USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 196 | /* |
| 197 | * at76c503-rfmd-acc |
| 198 | */ |
| 199 | /* SMC2664W */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 200 | {USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 201 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 202 | {USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 203 | /* |
| 204 | * at76c505-rfmd |
| 205 | */ |
| 206 | /* Generic AT76C505/RFMD */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 207 | {USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 208 | /* |
| 209 | * at76c505-rfmd2958 |
| 210 | */ |
| 211 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 212 | {USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 213 | /* Fiberline FL-WL240U */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 214 | {USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 215 | /* CNet CNUSB-611G */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 216 | {USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 217 | /* Linksys WUSB11 v2.8 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 218 | {USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 219 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 220 | {USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 221 | /* Corega WLAN USB Stick 11 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 222 | {USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 223 | /* Microstar MSI Box MS6978 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 224 | {USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 225 | /* |
| 226 | * at76c505a-rfmd2958 |
| 227 | */ |
| 228 | /* Generic AT76C505A device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 229 | {USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 230 | /* Generic AT76C505AS device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 231 | {USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 232 | /* Siemens Gigaset USB WLAN Adapter 11 */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 233 | {USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A)}, |
Jamie Lentin | 07f2698 | 2009-02-04 13:38:44 +0000 | [diff] [blame] | 234 | /* OQO Model 01+ Internal Wi-Fi */ |
| 235 | {USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A)}, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 236 | /* |
| 237 | * at76c505amx-rfmd |
| 238 | */ |
| 239 | /* Generic AT76C505AMX device */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 240 | {USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX)}, |
| 241 | {} |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 242 | }; |
| 243 | |
| 244 | MODULE_DEVICE_TABLE(usb, dev_table); |
| 245 | |
| 246 | /* Supported rates of this hardware, bit 7 marks basic rates */ |
| 247 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; |
| 248 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 249 | /* Frequency of each channel in MHz */ |
| 250 | static const long channel_frequency[] = { |
| 251 | 2412, 2417, 2422, 2427, 2432, 2437, 2442, |
| 252 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 |
| 253 | }; |
| 254 | |
| 255 | #define NUM_CHANNELS ARRAY_SIZE(channel_frequency) |
| 256 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 257 | static const char *const preambles[] = { "long", "short", "auto" }; |
| 258 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 259 | static const char *const mac_states[] = { |
| 260 | [MAC_INIT] = "INIT", |
| 261 | [MAC_SCANNING] = "SCANNING", |
| 262 | [MAC_AUTH] = "AUTH", |
| 263 | [MAC_ASSOC] = "ASSOC", |
| 264 | [MAC_JOINING] = "JOINING", |
| 265 | [MAC_CONNECTED] = "CONNECTED", |
| 266 | [MAC_OWN_IBSS] = "OWN_IBSS" |
| 267 | }; |
| 268 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 269 | /* Firmware download */ |
| 270 | /* DFU states */ |
| 271 | #define STATE_IDLE 0x00 |
| 272 | #define STATE_DETACH 0x01 |
| 273 | #define STATE_DFU_IDLE 0x02 |
| 274 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 |
| 275 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 |
| 276 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 |
| 277 | #define STATE_DFU_MANIFEST_SYNC 0x06 |
| 278 | #define STATE_DFU_MANIFEST 0x07 |
| 279 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 |
| 280 | #define STATE_DFU_UPLOAD_IDLE 0x09 |
| 281 | #define STATE_DFU_ERROR 0x0a |
| 282 | |
| 283 | /* DFU commands */ |
| 284 | #define DFU_DETACH 0 |
| 285 | #define DFU_DNLOAD 1 |
| 286 | #define DFU_UPLOAD 2 |
| 287 | #define DFU_GETSTATUS 3 |
| 288 | #define DFU_CLRSTATUS 4 |
| 289 | #define DFU_GETSTATE 5 |
| 290 | #define DFU_ABORT 6 |
| 291 | |
| 292 | #define FW_BLOCK_SIZE 1024 |
| 293 | |
| 294 | struct dfu_status { |
| 295 | unsigned char status; |
| 296 | unsigned char poll_timeout[3]; |
| 297 | unsigned char state; |
| 298 | unsigned char string; |
| 299 | } __attribute__((packed)); |
| 300 | |
| 301 | static inline int at76_is_intersil(enum board_type board) |
| 302 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 303 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 304 | } |
| 305 | |
| 306 | static inline int at76_is_503rfmd(enum board_type board) |
| 307 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 308 | return (board == BOARD_503 || board == BOARD_503_ACC); |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 309 | } |
| 310 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 311 | static inline int at76_is_505a(enum board_type board) |
| 312 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 313 | return (board == BOARD_505A || board == BOARD_505AMX); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | /* Load a block of the first (internal) part of the firmware */ |
| 317 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, |
| 318 | void *block, int size) |
| 319 | { |
| 320 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, |
| 321 | USB_TYPE_CLASS | USB_DIR_OUT | |
| 322 | USB_RECIP_INTERFACE, blockno, 0, block, size, |
| 323 | USB_CTRL_GET_TIMEOUT); |
| 324 | } |
| 325 | |
| 326 | static int at76_dfu_get_status(struct usb_device *udev, |
| 327 | struct dfu_status *status) |
| 328 | { |
| 329 | int ret; |
| 330 | |
| 331 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, |
| 332 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 333 | 0, 0, status, sizeof(struct dfu_status), |
| 334 | USB_CTRL_GET_TIMEOUT); |
| 335 | return ret; |
| 336 | } |
| 337 | |
| 338 | static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) |
| 339 | { |
| 340 | int ret; |
| 341 | |
| 342 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, |
| 343 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 344 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); |
| 345 | return ret; |
| 346 | } |
| 347 | |
| 348 | /* Convert timeout from the DFU status to jiffies */ |
| 349 | static inline unsigned long at76_get_timeout(struct dfu_status *s) |
| 350 | { |
| 351 | return msecs_to_jiffies((s->poll_timeout[2] << 16) |
| 352 | | (s->poll_timeout[1] << 8) |
| 353 | | (s->poll_timeout[0])); |
| 354 | } |
| 355 | |
| 356 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use |
| 357 | * its value in jiffies in the MANIFEST_SYNC state. */ |
| 358 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, |
| 359 | int manifest_sync_timeout) |
| 360 | { |
| 361 | u8 *block; |
| 362 | struct dfu_status dfu_stat_buf; |
| 363 | int ret = 0; |
| 364 | int need_dfu_state = 1; |
| 365 | int is_done = 0; |
| 366 | u8 dfu_state = 0; |
| 367 | u32 dfu_timeout = 0; |
| 368 | int bsize = 0; |
| 369 | int blockno = 0; |
| 370 | |
| 371 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, |
| 372 | manifest_sync_timeout); |
| 373 | |
| 374 | if (!size) { |
| 375 | dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); |
| 376 | return -EINVAL; |
| 377 | } |
| 378 | |
| 379 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 380 | if (!block) |
| 381 | return -ENOMEM; |
| 382 | |
| 383 | do { |
| 384 | if (need_dfu_state) { |
| 385 | ret = at76_dfu_get_state(udev, &dfu_state); |
| 386 | if (ret < 0) { |
| 387 | dev_printk(KERN_ERR, &udev->dev, |
| 388 | "cannot get DFU state: %d\n", ret); |
| 389 | goto exit; |
| 390 | } |
| 391 | need_dfu_state = 0; |
| 392 | } |
| 393 | |
| 394 | switch (dfu_state) { |
| 395 | case STATE_DFU_DOWNLOAD_SYNC: |
| 396 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); |
| 397 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 398 | if (ret >= 0) { |
| 399 | dfu_state = dfu_stat_buf.state; |
| 400 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 401 | need_dfu_state = 0; |
| 402 | } else |
| 403 | dev_printk(KERN_ERR, &udev->dev, |
| 404 | "at76_dfu_get_status returned %d\n", |
| 405 | ret); |
| 406 | break; |
| 407 | |
| 408 | case STATE_DFU_DOWNLOAD_BUSY: |
| 409 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); |
| 410 | need_dfu_state = 1; |
| 411 | |
| 412 | at76_dbg(DBG_DFU, "DFU: Resetting device"); |
| 413 | schedule_timeout_interruptible(dfu_timeout); |
| 414 | break; |
| 415 | |
| 416 | case STATE_DFU_DOWNLOAD_IDLE: |
| 417 | at76_dbg(DBG_DFU, "DOWNLOAD..."); |
| 418 | /* fall through */ |
| 419 | case STATE_DFU_IDLE: |
| 420 | at76_dbg(DBG_DFU, "DFU IDLE"); |
| 421 | |
| 422 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 423 | memcpy(block, buf, bsize); |
| 424 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " |
| 425 | "bsize = %4d, blockno = %2d", size, bsize, |
| 426 | blockno); |
| 427 | ret = |
| 428 | at76_load_int_fw_block(udev, blockno, block, bsize); |
| 429 | buf += bsize; |
| 430 | size -= bsize; |
| 431 | blockno++; |
| 432 | |
| 433 | if (ret != bsize) |
| 434 | dev_printk(KERN_ERR, &udev->dev, |
| 435 | "at76_load_int_fw_block " |
| 436 | "returned %d\n", ret); |
| 437 | need_dfu_state = 1; |
| 438 | break; |
| 439 | |
| 440 | case STATE_DFU_MANIFEST_SYNC: |
| 441 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); |
| 442 | |
| 443 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 444 | if (ret < 0) |
| 445 | break; |
| 446 | |
| 447 | dfu_state = dfu_stat_buf.state; |
| 448 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 449 | need_dfu_state = 0; |
| 450 | |
| 451 | /* override the timeout from the status response, |
| 452 | needed for AT76C505A */ |
| 453 | if (manifest_sync_timeout > 0) |
| 454 | dfu_timeout = manifest_sync_timeout; |
| 455 | |
| 456 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); |
| 457 | schedule_timeout_interruptible(dfu_timeout); |
| 458 | break; |
| 459 | |
| 460 | case STATE_DFU_MANIFEST: |
| 461 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); |
| 462 | is_done = 1; |
| 463 | break; |
| 464 | |
| 465 | case STATE_DFU_MANIFEST_WAIT_RESET: |
| 466 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); |
| 467 | is_done = 1; |
| 468 | break; |
| 469 | |
| 470 | case STATE_DFU_UPLOAD_IDLE: |
| 471 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); |
| 472 | break; |
| 473 | |
| 474 | case STATE_DFU_ERROR: |
| 475 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); |
| 476 | ret = -EPIPE; |
| 477 | break; |
| 478 | |
| 479 | default: |
| 480 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); |
| 481 | ret = -EINVAL; |
| 482 | break; |
| 483 | } |
| 484 | } while (!is_done && (ret >= 0)); |
| 485 | |
| 486 | exit: |
| 487 | kfree(block); |
| 488 | if (ret >= 0) |
| 489 | ret = 0; |
| 490 | |
| 491 | return ret; |
| 492 | } |
| 493 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 494 | /* Report that the scan results are ready */ |
| 495 | static inline void at76_iwevent_scan_complete(struct net_device *netdev) |
| 496 | { |
| 497 | union iwreq_data wrqu; |
| 498 | wrqu.data.length = 0; |
| 499 | wrqu.data.flags = 0; |
| 500 | wireless_send_event(netdev, SIOCGIWSCAN, &wrqu, NULL); |
| 501 | at76_dbg(DBG_WE_EVENTS, "%s: SIOCGIWSCAN sent", netdev->name); |
| 502 | } |
| 503 | |
| 504 | static inline void at76_iwevent_bss_connect(struct net_device *netdev, |
| 505 | u8 *bssid) |
| 506 | { |
| 507 | union iwreq_data wrqu; |
| 508 | wrqu.data.length = 0; |
| 509 | wrqu.data.flags = 0; |
| 510 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); |
| 511 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 512 | wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); |
| 513 | at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, |
| 514 | __func__); |
| 515 | } |
| 516 | |
| 517 | static inline void at76_iwevent_bss_disconnect(struct net_device *netdev) |
| 518 | { |
| 519 | union iwreq_data wrqu; |
| 520 | wrqu.data.length = 0; |
| 521 | wrqu.data.flags = 0; |
| 522 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 523 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 524 | wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); |
| 525 | at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, |
| 526 | __func__); |
| 527 | } |
| 528 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 529 | #define HEX2STR_BUFFERS 4 |
| 530 | #define HEX2STR_MAX_LEN 64 |
| 531 | #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) |
| 532 | |
| 533 | /* Convert binary data into hex string */ |
| 534 | static char *hex2str(void *buf, int len) |
| 535 | { |
| 536 | static atomic_t a = ATOMIC_INIT(0); |
| 537 | static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; |
| 538 | char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; |
| 539 | char *obuf = ret; |
| 540 | u8 *ibuf = buf; |
| 541 | |
| 542 | if (len > HEX2STR_MAX_LEN) |
| 543 | len = HEX2STR_MAX_LEN; |
| 544 | |
| 545 | if (len <= 0) { |
| 546 | ret[0] = '\0'; |
| 547 | return ret; |
| 548 | } |
| 549 | |
| 550 | while (len--) { |
| 551 | *obuf++ = BIN2HEX(*ibuf >> 4); |
| 552 | *obuf++ = BIN2HEX(*ibuf & 0xf); |
| 553 | *obuf++ = '-'; |
| 554 | ibuf++; |
| 555 | } |
| 556 | *(--obuf) = '\0'; |
| 557 | |
| 558 | return ret; |
| 559 | } |
| 560 | |
| 561 | #define MAC2STR_BUFFERS 4 |
| 562 | |
| 563 | static inline char *mac2str(u8 *mac) |
| 564 | { |
| 565 | static atomic_t a = ATOMIC_INIT(0); |
| 566 | static char bufs[MAC2STR_BUFFERS][6 * 3]; |
| 567 | char *str; |
| 568 | |
| 569 | str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; |
| 570 | sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", |
| 571 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); |
| 572 | return str; |
| 573 | } |
| 574 | |
| 575 | /* LED trigger */ |
| 576 | static int tx_activity; |
| 577 | static void at76_ledtrig_tx_timerfunc(unsigned long data); |
| 578 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); |
| 579 | DEFINE_LED_TRIGGER(ledtrig_tx); |
| 580 | |
| 581 | static void at76_ledtrig_tx_timerfunc(unsigned long data) |
| 582 | { |
| 583 | static int tx_lastactivity; |
| 584 | |
| 585 | if (tx_lastactivity != tx_activity) { |
| 586 | tx_lastactivity = tx_activity; |
| 587 | led_trigger_event(ledtrig_tx, LED_FULL); |
| 588 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 589 | } else |
| 590 | led_trigger_event(ledtrig_tx, LED_OFF); |
| 591 | } |
| 592 | |
| 593 | static void at76_ledtrig_tx_activity(void) |
| 594 | { |
| 595 | tx_activity++; |
| 596 | if (!timer_pending(&ledtrig_tx_timer)) |
| 597 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 598 | } |
| 599 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 600 | /* Check if the given ssid is hidden */ |
| 601 | static inline int at76_is_hidden_ssid(u8 *ssid, int length) |
| 602 | { |
| 603 | static const u8 zeros[32]; |
| 604 | |
| 605 | if (length == 0) |
| 606 | return 1; |
| 607 | |
| 608 | if (length == 1 && ssid[0] == ' ') |
| 609 | return 1; |
| 610 | |
| 611 | return (memcmp(ssid, zeros, length) == 0); |
| 612 | } |
| 613 | |
| 614 | static inline void at76_free_bss_list(struct at76_priv *priv) |
| 615 | { |
| 616 | struct list_head *next, *ptr; |
| 617 | unsigned long flags; |
| 618 | |
| 619 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 620 | |
| 621 | priv->curr_bss = NULL; |
| 622 | |
| 623 | list_for_each_safe(ptr, next, &priv->bss_list) { |
| 624 | list_del(ptr); |
| 625 | kfree(list_entry(ptr, struct bss_info, list)); |
| 626 | } |
| 627 | |
| 628 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 629 | } |
| 630 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 631 | static int at76_remap(struct usb_device *udev) |
| 632 | { |
| 633 | int ret; |
| 634 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, |
| 635 | USB_TYPE_VENDOR | USB_DIR_OUT | |
| 636 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, |
| 637 | USB_CTRL_GET_TIMEOUT); |
| 638 | if (ret < 0) |
| 639 | return ret; |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static int at76_get_op_mode(struct usb_device *udev) |
| 644 | { |
| 645 | int ret; |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 646 | u8 saved; |
| 647 | u8 *op_mode; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 648 | |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 649 | op_mode = kmalloc(1, GFP_NOIO); |
| 650 | if (!op_mode) |
| 651 | return -ENOMEM; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 652 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 653 | USB_TYPE_VENDOR | USB_DIR_IN | |
Jason Andryuk | ea8f9fe | 2009-01-30 09:05:03 -0500 | [diff] [blame] | 654 | USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 655 | USB_CTRL_GET_TIMEOUT); |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 656 | saved = *op_mode; |
| 657 | kfree(op_mode); |
| 658 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 659 | if (ret < 0) |
| 660 | return ret; |
| 661 | else if (ret < 1) |
| 662 | return -EIO; |
| 663 | else |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 664 | return saved; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | /* Load a block of the second ("external") part of the firmware */ |
| 668 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, |
| 669 | void *block, int size) |
| 670 | { |
| 671 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 672 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 673 | 0x0802, blockno, block, size, |
| 674 | USB_CTRL_GET_TIMEOUT); |
| 675 | } |
| 676 | |
| 677 | static inline int at76_get_hw_cfg(struct usb_device *udev, |
| 678 | union at76_hwcfg *buf, int buf_size) |
| 679 | { |
| 680 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 681 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 682 | USB_RECIP_INTERFACE, 0x0a02, 0, |
| 683 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 684 | } |
| 685 | |
| 686 | /* Intersil boards use a different "value" for GetHWConfig requests */ |
| 687 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, |
| 688 | union at76_hwcfg *buf, int buf_size) |
| 689 | { |
| 690 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 691 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 692 | USB_RECIP_INTERFACE, 0x0902, 0, |
| 693 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 694 | } |
| 695 | |
| 696 | /* Get the hardware configuration for the adapter and put it to the appropriate |
| 697 | * fields of 'priv' (the GetHWConfig request and interpretation of the result |
| 698 | * depends on the board type) */ |
| 699 | static int at76_get_hw_config(struct at76_priv *priv) |
| 700 | { |
| 701 | int ret; |
| 702 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); |
| 703 | |
| 704 | if (!hwcfg) |
| 705 | return -ENOMEM; |
| 706 | |
| 707 | if (at76_is_intersil(priv->board_type)) { |
| 708 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, |
| 709 | sizeof(hwcfg->i)); |
| 710 | if (ret < 0) |
| 711 | goto exit; |
| 712 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); |
| 713 | priv->regulatory_domain = hwcfg->i.regulatory_domain; |
| 714 | } else if (at76_is_503rfmd(priv->board_type)) { |
| 715 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); |
| 716 | if (ret < 0) |
| 717 | goto exit; |
| 718 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); |
| 719 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; |
| 720 | } else { |
| 721 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); |
| 722 | if (ret < 0) |
| 723 | goto exit; |
| 724 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); |
| 725 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; |
| 726 | } |
| 727 | |
| 728 | exit: |
| 729 | kfree(hwcfg); |
| 730 | if (ret < 0) |
| 731 | printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 732 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 733 | |
| 734 | return ret; |
| 735 | } |
| 736 | |
| 737 | static struct reg_domain const *at76_get_reg_domain(u16 code) |
| 738 | { |
| 739 | int i; |
| 740 | static struct reg_domain const fd_tab[] = { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 741 | {0x10, "FCC (USA)", 0x7ff}, /* ch 1-11 */ |
| 742 | {0x20, "IC (Canada)", 0x7ff}, /* ch 1-11 */ |
| 743 | {0x30, "ETSI (most of Europe)", 0x1fff}, /* ch 1-13 */ |
| 744 | {0x31, "Spain", 0x600}, /* ch 10-11 */ |
| 745 | {0x32, "France", 0x1e00}, /* ch 10-13 */ |
| 746 | {0x40, "MKK (Japan)", 0x2000}, /* ch 14 */ |
| 747 | {0x41, "MKK1 (Japan)", 0x3fff}, /* ch 1-14 */ |
| 748 | {0x50, "Israel", 0x3fc}, /* ch 3-9 */ |
| 749 | {0x00, "<unknown>", 0xffffffff} /* ch 1-32 */ |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 750 | }; |
| 751 | |
| 752 | /* Last entry is fallback for unknown domain code */ |
| 753 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) |
| 754 | if (code == fd_tab[i].code) |
| 755 | break; |
| 756 | |
| 757 | return &fd_tab[i]; |
| 758 | } |
| 759 | |
| 760 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, |
| 761 | int buf_size) |
| 762 | { |
| 763 | int ret; |
| 764 | |
| 765 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 766 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 767 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, |
| 768 | USB_CTRL_GET_TIMEOUT); |
| 769 | if (ret >= 0 && ret != buf_size) |
| 770 | return -EIO; |
| 771 | return ret; |
| 772 | } |
| 773 | |
| 774 | /* Return positive number for status, negative for an error */ |
| 775 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) |
| 776 | { |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 777 | u8 *stat_buf; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 778 | int ret; |
| 779 | |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 780 | stat_buf = kmalloc(40, GFP_NOIO); |
| 781 | if (!stat_buf) |
| 782 | return -ENOMEM; |
| 783 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 784 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, |
| 785 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 786 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, |
Jason Andryuk | ea8f9fe | 2009-01-30 09:05:03 -0500 | [diff] [blame] | 787 | 40, USB_CTRL_GET_TIMEOUT); |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 788 | if (ret >= 0) |
| 789 | ret = stat_buf[5]; |
| 790 | kfree(stat_buf); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 791 | |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 792 | return ret; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 793 | } |
| 794 | |
Oliver Neukum | 0d1d142 | 2008-12-18 13:16:40 +0100 | [diff] [blame] | 795 | static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 796 | int buf_size) |
| 797 | { |
| 798 | int ret; |
| 799 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + |
| 800 | buf_size, GFP_KERNEL); |
| 801 | |
| 802 | if (!cmd_buf) |
| 803 | return -ENOMEM; |
| 804 | |
| 805 | cmd_buf->cmd = cmd; |
| 806 | cmd_buf->reserved = 0; |
| 807 | cmd_buf->size = cpu_to_le16(buf_size); |
| 808 | memcpy(cmd_buf->data, buf, buf_size); |
| 809 | |
| 810 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 811 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 812 | 0, 0, cmd_buf, |
| 813 | sizeof(struct at76_command) + buf_size, |
| 814 | USB_CTRL_GET_TIMEOUT); |
| 815 | kfree(cmd_buf); |
| 816 | return ret; |
| 817 | } |
| 818 | |
| 819 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c |
| 820 | static const char *at76_get_cmd_status_string(u8 cmd_status) |
| 821 | { |
| 822 | switch (cmd_status) { |
| 823 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); |
| 824 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); |
| 825 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); |
| 826 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); |
| 827 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); |
| 828 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); |
| 829 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); |
| 830 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); |
| 831 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); |
| 832 | } |
| 833 | |
| 834 | return "UNKNOWN"; |
| 835 | } |
| 836 | |
| 837 | /* Wait until the command is completed */ |
| 838 | static int at76_wait_completion(struct at76_priv *priv, int cmd) |
| 839 | { |
| 840 | int status = 0; |
| 841 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; |
| 842 | |
| 843 | do { |
| 844 | status = at76_get_cmd_status(priv->udev, cmd); |
| 845 | if (status < 0) { |
| 846 | printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 847 | priv->netdev->name, status); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 848 | break; |
| 849 | } |
| 850 | |
| 851 | at76_dbg(DBG_WAIT_COMPLETE, |
| 852 | "%s: Waiting on cmd %d, status = %d (%s)", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 853 | priv->netdev->name, cmd, status, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 854 | at76_get_cmd_status_string(status)); |
| 855 | |
| 856 | if (status != CMD_STATUS_IN_PROGRESS |
| 857 | && status != CMD_STATUS_IDLE) |
| 858 | break; |
| 859 | |
| 860 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ |
| 861 | if (time_after(jiffies, timeout)) { |
| 862 | printk(KERN_ERR |
| 863 | "%s: completion timeout for command %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 864 | priv->netdev->name, cmd); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 865 | status = -ETIMEDOUT; |
| 866 | break; |
| 867 | } |
| 868 | } while (1); |
| 869 | |
| 870 | return status; |
| 871 | } |
| 872 | |
| 873 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) |
| 874 | { |
| 875 | int ret; |
| 876 | |
| 877 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, |
| 878 | offsetof(struct set_mib_buffer, |
| 879 | data) + buf->size); |
| 880 | if (ret < 0) |
| 881 | return ret; |
| 882 | |
| 883 | ret = at76_wait_completion(priv, CMD_SET_MIB); |
| 884 | if (ret != CMD_STATUS_COMPLETE) { |
| 885 | printk(KERN_INFO |
| 886 | "%s: set_mib: at76_wait_completion failed " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 887 | "with %d\n", priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 888 | ret = -EIO; |
| 889 | } |
| 890 | |
| 891 | return ret; |
| 892 | } |
| 893 | |
| 894 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ |
| 895 | static int at76_set_radio(struct at76_priv *priv, int enable) |
| 896 | { |
| 897 | int ret; |
| 898 | int cmd; |
| 899 | |
| 900 | if (priv->radio_on == enable) |
| 901 | return 0; |
| 902 | |
| 903 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; |
| 904 | |
| 905 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); |
| 906 | if (ret < 0) |
| 907 | printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 908 | priv->netdev->name, cmd, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 909 | else |
| 910 | ret = 1; |
| 911 | |
| 912 | priv->radio_on = enable; |
| 913 | return ret; |
| 914 | } |
| 915 | |
| 916 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ |
| 917 | static int at76_set_pm_mode(struct at76_priv *priv) |
| 918 | { |
| 919 | int ret = 0; |
| 920 | |
| 921 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 922 | priv->mib_buf.size = 1; |
| 923 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); |
| 924 | priv->mib_buf.data.byte = priv->pm_mode; |
| 925 | |
| 926 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 927 | if (ret < 0) |
| 928 | printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 929 | priv->netdev->name, ret); |
| 930 | |
| 931 | return ret; |
| 932 | } |
| 933 | |
| 934 | /* Set the association id for power save mode */ |
| 935 | static int at76_set_associd(struct at76_priv *priv, u16 id) |
| 936 | { |
| 937 | int ret = 0; |
| 938 | |
| 939 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 940 | priv->mib_buf.size = 2; |
| 941 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, station_id); |
| 942 | priv->mib_buf.data.word = cpu_to_le16(id); |
| 943 | |
| 944 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 945 | if (ret < 0) |
| 946 | printk(KERN_ERR "%s: set_mib (associd) failed: %d\n", |
| 947 | priv->netdev->name, ret); |
| 948 | |
| 949 | return ret; |
| 950 | } |
| 951 | |
| 952 | /* Set the listen interval for power save mode */ |
| 953 | static int at76_set_listen_interval(struct at76_priv *priv, u16 interval) |
| 954 | { |
| 955 | int ret = 0; |
| 956 | |
| 957 | priv->mib_buf.type = MIB_MAC; |
| 958 | priv->mib_buf.size = 2; |
| 959 | priv->mib_buf.index = offsetof(struct mib_mac, listen_interval); |
| 960 | priv->mib_buf.data.word = cpu_to_le16(interval); |
| 961 | |
| 962 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 963 | if (ret < 0) |
| 964 | printk(KERN_ERR |
| 965 | "%s: set_mib (listen_interval) failed: %d\n", |
| 966 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 967 | |
| 968 | return ret; |
| 969 | } |
| 970 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 971 | static int at76_set_preamble(struct at76_priv *priv, u8 type) |
| 972 | { |
| 973 | int ret = 0; |
| 974 | |
| 975 | priv->mib_buf.type = MIB_LOCAL; |
| 976 | priv->mib_buf.size = 1; |
| 977 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); |
| 978 | priv->mib_buf.data.byte = type; |
| 979 | |
| 980 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 981 | if (ret < 0) |
| 982 | printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 983 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 984 | |
| 985 | return ret; |
| 986 | } |
| 987 | |
| 988 | static int at76_set_frag(struct at76_priv *priv, u16 size) |
| 989 | { |
| 990 | int ret = 0; |
| 991 | |
| 992 | priv->mib_buf.type = MIB_MAC; |
| 993 | priv->mib_buf.size = 2; |
| 994 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); |
| 995 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 996 | |
| 997 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 998 | if (ret < 0) |
| 999 | printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1000 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1001 | |
| 1002 | return ret; |
| 1003 | } |
| 1004 | |
| 1005 | static int at76_set_rts(struct at76_priv *priv, u16 size) |
| 1006 | { |
| 1007 | int ret = 0; |
| 1008 | |
| 1009 | priv->mib_buf.type = MIB_MAC; |
| 1010 | priv->mib_buf.size = 2; |
| 1011 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); |
| 1012 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 1013 | |
| 1014 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1015 | if (ret < 0) |
| 1016 | printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1017 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1018 | |
| 1019 | return ret; |
| 1020 | } |
| 1021 | |
| 1022 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) |
| 1023 | { |
| 1024 | int ret = 0; |
| 1025 | |
| 1026 | priv->mib_buf.type = MIB_LOCAL; |
| 1027 | priv->mib_buf.size = 1; |
| 1028 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); |
| 1029 | priv->mib_buf.data.byte = onoff; |
| 1030 | |
| 1031 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1032 | if (ret < 0) |
| 1033 | printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1034 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1035 | |
| 1036 | return ret; |
| 1037 | } |
| 1038 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1039 | static int at76_add_mac_address(struct at76_priv *priv, void *addr) |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 1040 | { |
| 1041 | int ret = 0; |
| 1042 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1043 | priv->mib_buf.type = MIB_MAC_ADDR; |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 1044 | priv->mib_buf.size = ETH_ALEN; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1045 | priv->mib_buf.index = offsetof(struct mib_mac_addr, mac_addr); |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 1046 | memcpy(priv->mib_buf.data.addr, addr, ETH_ALEN); |
| 1047 | |
| 1048 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1049 | if (ret < 0) |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1050 | printk(KERN_ERR "%s: set_mib (MAC_ADDR, mac_addr) failed: %d\n", |
| 1051 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1052 | |
| 1053 | return ret; |
| 1054 | } |
| 1055 | |
| 1056 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) |
| 1057 | { |
| 1058 | int i; |
| 1059 | int ret; |
| 1060 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), |
| 1061 | GFP_KERNEL); |
| 1062 | |
| 1063 | if (!m) |
| 1064 | return; |
| 1065 | |
| 1066 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, |
| 1067 | sizeof(struct mib_mac_addr)); |
| 1068 | if (ret < 0) { |
| 1069 | printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1070 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1071 | goto exit; |
| 1072 | } |
| 1073 | |
| 1074 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1075 | priv->netdev->name, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1076 | mac2str(m->mac_addr), m->res[0], m->res[1]); |
| 1077 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) |
| 1078 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1079 | "status %d", priv->netdev->name, i, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1080 | mac2str(m->group_addr[i]), m->group_addr_status[i]); |
| 1081 | exit: |
| 1082 | kfree(m); |
| 1083 | } |
| 1084 | |
| 1085 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) |
| 1086 | { |
| 1087 | int i; |
| 1088 | int ret; |
| 1089 | int key_len; |
| 1090 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); |
| 1091 | |
| 1092 | if (!m) |
| 1093 | return; |
| 1094 | |
| 1095 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, |
| 1096 | sizeof(struct mib_mac_wep)); |
| 1097 | if (ret < 0) { |
| 1098 | printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1099 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1100 | goto exit; |
| 1101 | } |
| 1102 | |
| 1103 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " |
| 1104 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1105 | "encr_level %u key %d", priv->netdev->name, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1106 | m->privacy_invoked, m->wep_default_key_id, |
| 1107 | m->wep_key_mapping_len, m->exclude_unencrypted, |
| 1108 | le32_to_cpu(m->wep_icv_error_count), |
| 1109 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, |
| 1110 | m->wep_default_key_id); |
| 1111 | |
| 1112 | key_len = (m->encryption_level == 1) ? |
| 1113 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; |
| 1114 | |
| 1115 | for (i = 0; i < WEP_KEYS; i++) |
| 1116 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1117 | priv->netdev->name, i, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1118 | hex2str(m->wep_default_keyvalue[i], key_len)); |
| 1119 | exit: |
| 1120 | kfree(m); |
| 1121 | } |
| 1122 | |
| 1123 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) |
| 1124 | { |
| 1125 | int ret; |
| 1126 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), |
| 1127 | GFP_KERNEL); |
| 1128 | |
| 1129 | if (!m) |
| 1130 | return; |
| 1131 | |
| 1132 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, |
| 1133 | sizeof(struct mib_mac_mgmt)); |
| 1134 | if (ret < 0) { |
| 1135 | printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1136 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1137 | goto exit; |
| 1138 | } |
| 1139 | |
| 1140 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " |
| 1141 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " |
| 1142 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " |
| 1143 | "current_bssid %s current_essid %s current_bss_type %d " |
| 1144 | "pm_mode %d ibss_change %d res %d " |
| 1145 | "multi_domain_capability_implemented %d " |
| 1146 | "international_roaming %d country_string %.3s", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1147 | priv->netdev->name, le16_to_cpu(m->beacon_period), |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1148 | le16_to_cpu(m->CFP_max_duration), |
| 1149 | le16_to_cpu(m->medium_occupancy_limit), |
| 1150 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), |
| 1151 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, |
| 1152 | m->CFP_period, mac2str(m->current_bssid), |
| 1153 | hex2str(m->current_essid, IW_ESSID_MAX_SIZE), |
| 1154 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, |
| 1155 | m->res, m->multi_domain_capability_implemented, |
| 1156 | m->multi_domain_capability_enabled, m->country_string); |
| 1157 | exit: |
| 1158 | kfree(m); |
| 1159 | } |
| 1160 | |
| 1161 | static void at76_dump_mib_mac(struct at76_priv *priv) |
| 1162 | { |
| 1163 | int ret; |
| 1164 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); |
| 1165 | |
| 1166 | if (!m) |
| 1167 | return; |
| 1168 | |
| 1169 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); |
| 1170 | if (ret < 0) { |
| 1171 | printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1172 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1173 | goto exit; |
| 1174 | } |
| 1175 | |
| 1176 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " |
| 1177 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " |
| 1178 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " |
| 1179 | "scan_type %d scan_channel %d probe_delay %u " |
| 1180 | "min_channel_time %d max_channel_time %d listen_int %d " |
| 1181 | "desired_ssid %s desired_bssid %s desired_bsstype %d", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1182 | priv->netdev->name, le32_to_cpu(m->max_tx_msdu_lifetime), |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1183 | le32_to_cpu(m->max_rx_lifetime), |
| 1184 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), |
| 1185 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), |
| 1186 | m->short_retry_time, m->long_retry_time, m->scan_type, |
| 1187 | m->scan_channel, le16_to_cpu(m->probe_delay), |
| 1188 | le16_to_cpu(m->min_channel_time), |
| 1189 | le16_to_cpu(m->max_channel_time), |
| 1190 | le16_to_cpu(m->listen_interval), |
| 1191 | hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), |
| 1192 | mac2str(m->desired_bssid), m->desired_bsstype); |
| 1193 | exit: |
| 1194 | kfree(m); |
| 1195 | } |
| 1196 | |
| 1197 | static void at76_dump_mib_phy(struct at76_priv *priv) |
| 1198 | { |
| 1199 | int ret; |
| 1200 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1201 | |
| 1202 | if (!m) |
| 1203 | return; |
| 1204 | |
| 1205 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); |
| 1206 | if (ret < 0) { |
| 1207 | printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1208 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1209 | goto exit; |
| 1210 | } |
| 1211 | |
| 1212 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " |
| 1213 | "sifs_time %d preamble_length %d plcp_header_length %d " |
| 1214 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " |
| 1215 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " |
| 1216 | "phy_type %d current_reg_domain %d", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1217 | priv->netdev->name, le32_to_cpu(m->ed_threshold), |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1218 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), |
| 1219 | le16_to_cpu(m->preamble_length), |
| 1220 | le16_to_cpu(m->plcp_header_length), |
| 1221 | le16_to_cpu(m->mpdu_max_length), |
| 1222 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], |
| 1223 | m->operation_rate_set[1], m->operation_rate_set[2], |
| 1224 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, |
| 1225 | m->phy_type, m->current_reg_domain); |
| 1226 | exit: |
| 1227 | kfree(m); |
| 1228 | } |
| 1229 | |
| 1230 | static void at76_dump_mib_local(struct at76_priv *priv) |
| 1231 | { |
| 1232 | int ret; |
| 1233 | struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1234 | |
| 1235 | if (!m) |
| 1236 | return; |
| 1237 | |
| 1238 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); |
| 1239 | if (ret < 0) { |
| 1240 | printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1241 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1242 | goto exit; |
| 1243 | } |
| 1244 | |
| 1245 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " |
| 1246 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1247 | "preamble_type %d", priv->netdev->name, m->beacon_enable, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1248 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, |
| 1249 | m->preamble_type); |
| 1250 | exit: |
| 1251 | kfree(m); |
| 1252 | } |
| 1253 | |
| 1254 | static void at76_dump_mib_mdomain(struct at76_priv *priv) |
| 1255 | { |
| 1256 | int ret; |
| 1257 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); |
| 1258 | |
| 1259 | if (!m) |
| 1260 | return; |
| 1261 | |
| 1262 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, |
| 1263 | sizeof(struct mib_mdomain)); |
| 1264 | if (ret < 0) { |
| 1265 | printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1266 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1267 | goto exit; |
| 1268 | } |
| 1269 | |
| 1270 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1271 | priv->netdev->name, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1272 | hex2str(m->channel_list, sizeof(m->channel_list))); |
| 1273 | |
| 1274 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1275 | priv->netdev->name, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1276 | hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); |
| 1277 | exit: |
| 1278 | kfree(m); |
| 1279 | } |
| 1280 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1281 | static int at76_get_current_bssid(struct at76_priv *priv) |
| 1282 | { |
| 1283 | int ret = 0; |
| 1284 | struct mib_mac_mgmt *mac_mgmt = |
| 1285 | kmalloc(sizeof(struct mib_mac_mgmt), GFP_KERNEL); |
| 1286 | |
| 1287 | if (!mac_mgmt) { |
| 1288 | ret = -ENOMEM; |
| 1289 | goto exit; |
| 1290 | } |
| 1291 | |
| 1292 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, mac_mgmt, |
| 1293 | sizeof(struct mib_mac_mgmt)); |
| 1294 | if (ret < 0) { |
| 1295 | printk(KERN_ERR "%s: at76_get_mib failed: %d\n", |
| 1296 | priv->netdev->name, ret); |
| 1297 | goto error; |
| 1298 | } |
| 1299 | memcpy(priv->bssid, mac_mgmt->current_bssid, ETH_ALEN); |
| 1300 | printk(KERN_INFO "%s: using BSSID %s\n", priv->netdev->name, |
| 1301 | mac2str(priv->bssid)); |
| 1302 | error: |
| 1303 | kfree(mac_mgmt); |
| 1304 | exit: |
| 1305 | return ret; |
| 1306 | } |
| 1307 | |
| 1308 | static int at76_get_current_channel(struct at76_priv *priv) |
| 1309 | { |
| 1310 | int ret = 0; |
| 1311 | struct mib_phy *phy = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1312 | |
| 1313 | if (!phy) { |
| 1314 | ret = -ENOMEM; |
| 1315 | goto exit; |
| 1316 | } |
| 1317 | ret = at76_get_mib(priv->udev, MIB_PHY, phy, sizeof(struct mib_phy)); |
| 1318 | if (ret < 0) { |
| 1319 | printk(KERN_ERR "%s: at76_get_mib(MIB_PHY) failed: %d\n", |
| 1320 | priv->netdev->name, ret); |
| 1321 | goto error; |
| 1322 | } |
| 1323 | priv->channel = phy->channel_id; |
| 1324 | error: |
| 1325 | kfree(phy); |
| 1326 | exit: |
| 1327 | return ret; |
| 1328 | } |
| 1329 | |
| 1330 | /** |
| 1331 | * at76_start_scan - start a scan |
| 1332 | * |
| 1333 | * @use_essid - use the configured ESSID in non passive mode |
| 1334 | */ |
| 1335 | static int at76_start_scan(struct at76_priv *priv, int use_essid) |
| 1336 | { |
| 1337 | struct at76_req_scan scan; |
| 1338 | |
| 1339 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1340 | memset(scan.bssid, 0xff, ETH_ALEN); |
| 1341 | |
| 1342 | if (use_essid) { |
| 1343 | memcpy(scan.essid, priv->essid, IW_ESSID_MAX_SIZE); |
| 1344 | scan.essid_size = priv->essid_size; |
| 1345 | } else |
| 1346 | scan.essid_size = 0; |
| 1347 | |
| 1348 | /* jal: why should we start at a certain channel? we do scan the whole |
| 1349 | range allowed by reg domain. */ |
| 1350 | scan.channel = priv->channel; |
| 1351 | |
| 1352 | /* atmelwlandriver differs between scan type 0 and 1 (active/passive) |
| 1353 | For ad-hoc mode, it uses type 0 only. */ |
| 1354 | scan.scan_type = priv->scan_mode; |
| 1355 | |
| 1356 | /* INFO: For probe_delay, not multiplying by 1024 as this will be |
| 1357 | slightly less than min_channel_time |
| 1358 | (per spec: probe delay < min. channel time) */ |
| 1359 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
| 1360 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); |
| 1361 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); |
| 1362 | scan.international_scan = 0; |
| 1363 | |
| 1364 | /* other values are set to 0 for type 0 */ |
| 1365 | |
| 1366 | at76_dbg(DBG_PROGRESS, "%s: start_scan (use_essid = %d, intl = %d, " |
| 1367 | "channel = %d, probe_delay = %d, scan_min_time = %d, " |
| 1368 | "scan_max_time = %d)", |
| 1369 | priv->netdev->name, use_essid, |
| 1370 | scan.international_scan, scan.channel, |
| 1371 | le16_to_cpu(scan.probe_delay), |
| 1372 | le16_to_cpu(scan.min_channel_time), |
| 1373 | le16_to_cpu(scan.max_channel_time)); |
| 1374 | |
| 1375 | return at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1376 | } |
| 1377 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1378 | /* Enable monitor mode */ |
| 1379 | static int at76_start_monitor(struct at76_priv *priv) |
| 1380 | { |
| 1381 | struct at76_req_scan scan; |
| 1382 | int ret; |
| 1383 | |
| 1384 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1385 | memset(scan.bssid, 0xff, ETH_ALEN); |
| 1386 | |
| 1387 | scan.channel = priv->channel; |
| 1388 | scan.scan_type = SCAN_TYPE_PASSIVE; |
| 1389 | scan.international_scan = 0; |
| 1390 | |
| 1391 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1392 | if (ret >= 0) |
| 1393 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 1394 | |
| 1395 | return ret; |
| 1396 | } |
| 1397 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1398 | static int at76_start_ibss(struct at76_priv *priv) |
| 1399 | { |
| 1400 | struct at76_req_ibss bss; |
| 1401 | int ret; |
| 1402 | |
| 1403 | WARN_ON(priv->mac_state != MAC_OWN_IBSS); |
| 1404 | if (priv->mac_state != MAC_OWN_IBSS) |
| 1405 | return -EBUSY; |
| 1406 | |
| 1407 | memset(&bss, 0, sizeof(struct at76_req_ibss)); |
| 1408 | memset(bss.bssid, 0xff, ETH_ALEN); |
| 1409 | memcpy(bss.essid, priv->essid, IW_ESSID_MAX_SIZE); |
| 1410 | bss.essid_size = priv->essid_size; |
| 1411 | bss.bss_type = ADHOC_MODE; |
| 1412 | bss.channel = priv->channel; |
| 1413 | |
| 1414 | ret = at76_set_card_command(priv->udev, CMD_START_IBSS, &bss, |
| 1415 | sizeof(struct at76_req_ibss)); |
| 1416 | if (ret < 0) { |
| 1417 | printk(KERN_ERR "%s: start_ibss failed: %d\n", |
| 1418 | priv->netdev->name, ret); |
| 1419 | return ret; |
| 1420 | } |
| 1421 | |
| 1422 | ret = at76_wait_completion(priv, CMD_START_IBSS); |
| 1423 | if (ret != CMD_STATUS_COMPLETE) { |
| 1424 | printk(KERN_ERR "%s: start_ibss failed to complete, %d\n", |
| 1425 | priv->netdev->name, ret); |
| 1426 | return ret; |
| 1427 | } |
| 1428 | |
| 1429 | ret = at76_get_current_bssid(priv); |
| 1430 | if (ret < 0) |
| 1431 | return ret; |
| 1432 | |
| 1433 | ret = at76_get_current_channel(priv); |
| 1434 | if (ret < 0) |
| 1435 | return ret; |
| 1436 | |
| 1437 | /* not sure what this is good for ??? */ |
| 1438 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 1439 | priv->mib_buf.size = 1; |
| 1440 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); |
| 1441 | priv->mib_buf.data.byte = 0; |
| 1442 | |
| 1443 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1444 | if (ret < 0) { |
| 1445 | printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", |
| 1446 | priv->netdev->name, ret); |
| 1447 | return ret; |
| 1448 | } |
| 1449 | |
| 1450 | netif_carrier_on(priv->netdev); |
| 1451 | netif_start_queue(priv->netdev); |
| 1452 | return 0; |
| 1453 | } |
| 1454 | |
| 1455 | /* Request card to join BSS in managed or ad-hoc mode */ |
| 1456 | static int at76_join_bss(struct at76_priv *priv, struct bss_info *ptr) |
| 1457 | { |
| 1458 | struct at76_req_join join; |
| 1459 | |
| 1460 | BUG_ON(!ptr); |
| 1461 | |
| 1462 | memset(&join, 0, sizeof(struct at76_req_join)); |
| 1463 | memcpy(join.bssid, ptr->bssid, ETH_ALEN); |
| 1464 | memcpy(join.essid, ptr->ssid, ptr->ssid_len); |
| 1465 | join.essid_size = ptr->ssid_len; |
| 1466 | join.bss_type = (priv->iw_mode == IW_MODE_ADHOC ? 1 : 2); |
| 1467 | join.channel = ptr->channel; |
| 1468 | join.timeout = cpu_to_le16(2000); |
| 1469 | |
| 1470 | at76_dbg(DBG_PROGRESS, |
| 1471 | "%s join addr %s ssid %s type %d ch %d timeout %d", |
| 1472 | priv->netdev->name, mac2str(join.bssid), join.essid, |
| 1473 | join.bss_type, join.channel, le16_to_cpu(join.timeout)); |
| 1474 | return at76_set_card_command(priv->udev, CMD_JOIN, &join, |
| 1475 | sizeof(struct at76_req_join)); |
| 1476 | } |
| 1477 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1478 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), |
| 1479 | likely to compensate a flaw in the AT76C503A USB part ... */ |
| 1480 | static inline int at76_calc_padding(int wlen) |
| 1481 | { |
| 1482 | /* add the USB TX header */ |
| 1483 | wlen += AT76_TX_HDRLEN; |
| 1484 | |
| 1485 | wlen = wlen % 64; |
| 1486 | |
| 1487 | if (wlen < 50) |
| 1488 | return 50 - wlen; |
| 1489 | |
| 1490 | if (wlen >= 61) |
| 1491 | return 64 + 50 - wlen; |
| 1492 | |
| 1493 | return 0; |
| 1494 | } |
| 1495 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1496 | /* We are doing a lot of things here in an interrupt. Need |
| 1497 | a bh handler (Watching TV with a TV card is probably |
| 1498 | a good test: if you see flickers, we are doing too much. |
| 1499 | Currently I do see flickers... even with our tasklet :-( ) |
| 1500 | Maybe because the bttv driver and usb-uhci use the same interrupt |
| 1501 | */ |
| 1502 | /* Or maybe because our BH handler is preempting bttv's BH handler.. BHs don't |
| 1503 | * solve everything.. (alex) */ |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 1504 | static void at76_rx_callback(struct urb *urb) |
| 1505 | { |
| 1506 | struct at76_priv *priv = urb->context; |
| 1507 | |
| 1508 | priv->rx_tasklet.data = (unsigned long)urb; |
| 1509 | tasklet_schedule(&priv->rx_tasklet); |
| 1510 | return; |
| 1511 | } |
| 1512 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1513 | static void at76_tx_callback(struct urb *urb) |
| 1514 | { |
| 1515 | struct at76_priv *priv = urb->context; |
| 1516 | struct net_device_stats *stats = &priv->stats; |
| 1517 | unsigned long flags; |
| 1518 | struct at76_tx_buffer *mgmt_buf; |
| 1519 | int ret; |
| 1520 | |
| 1521 | switch (urb->status) { |
| 1522 | case 0: |
| 1523 | stats->tx_packets++; |
| 1524 | break; |
| 1525 | case -ENOENT: |
| 1526 | case -ECONNRESET: |
| 1527 | /* urb has been unlinked */ |
| 1528 | return; |
| 1529 | default: |
| 1530 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", |
| 1531 | __func__, urb->status); |
| 1532 | stats->tx_errors++; |
| 1533 | break; |
| 1534 | } |
| 1535 | |
| 1536 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); |
| 1537 | mgmt_buf = priv->next_mgmt_bulk; |
| 1538 | priv->next_mgmt_bulk = NULL; |
| 1539 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); |
| 1540 | |
| 1541 | if (!mgmt_buf) { |
| 1542 | netif_wake_queue(priv->netdev); |
| 1543 | return; |
| 1544 | } |
| 1545 | |
| 1546 | /* we don't copy the padding bytes, but add them |
| 1547 | to the length */ |
| 1548 | memcpy(priv->bulk_out_buffer, mgmt_buf, |
| 1549 | le16_to_cpu(mgmt_buf->wlength) + AT76_TX_HDRLEN); |
| 1550 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, |
| 1551 | priv->bulk_out_buffer, |
| 1552 | le16_to_cpu(mgmt_buf->wlength) + mgmt_buf->padding + |
| 1553 | AT76_TX_HDRLEN, at76_tx_callback, priv); |
| 1554 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); |
| 1555 | if (ret) |
| 1556 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", |
| 1557 | priv->netdev->name, ret); |
| 1558 | |
| 1559 | kfree(mgmt_buf); |
| 1560 | } |
| 1561 | |
| 1562 | /* Send a management frame on bulk-out. txbuf->wlength must be set */ |
| 1563 | static int at76_tx_mgmt(struct at76_priv *priv, struct at76_tx_buffer *txbuf) |
| 1564 | { |
| 1565 | unsigned long flags; |
| 1566 | int ret; |
| 1567 | int urb_status; |
| 1568 | void *oldbuf = NULL; |
| 1569 | |
| 1570 | netif_carrier_off(priv->netdev); /* stop netdev watchdog */ |
| 1571 | netif_stop_queue(priv->netdev); /* stop tx data packets */ |
| 1572 | |
| 1573 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); |
| 1574 | |
| 1575 | urb_status = priv->tx_urb->status; |
| 1576 | if (urb_status == -EINPROGRESS) { |
| 1577 | /* cannot transmit now, put in the queue */ |
| 1578 | oldbuf = priv->next_mgmt_bulk; |
| 1579 | priv->next_mgmt_bulk = txbuf; |
| 1580 | } |
| 1581 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); |
| 1582 | |
| 1583 | if (oldbuf) { |
| 1584 | /* a data/mgmt tx is already pending in the URB - |
| 1585 | if this is no error in some situations we must |
| 1586 | implement a queue or silently modify the old msg */ |
| 1587 | printk(KERN_ERR "%s: removed pending mgmt buffer %s\n", |
| 1588 | priv->netdev->name, hex2str(oldbuf, 64)); |
| 1589 | kfree(oldbuf); |
| 1590 | return 0; |
| 1591 | } |
| 1592 | |
| 1593 | txbuf->tx_rate = TX_RATE_1MBIT; |
| 1594 | txbuf->padding = at76_calc_padding(le16_to_cpu(txbuf->wlength)); |
| 1595 | memset(txbuf->reserved, 0, sizeof(txbuf->reserved)); |
| 1596 | |
| 1597 | if (priv->next_mgmt_bulk) |
| 1598 | printk(KERN_ERR "%s: URB status %d, but mgmt is pending\n", |
| 1599 | priv->netdev->name, urb_status); |
| 1600 | |
| 1601 | at76_dbg(DBG_TX_MGMT, |
| 1602 | "%s: tx mgmt: wlen %d tx_rate %d pad %d %s", |
| 1603 | priv->netdev->name, le16_to_cpu(txbuf->wlength), |
| 1604 | txbuf->tx_rate, txbuf->padding, |
| 1605 | hex2str(txbuf->packet, le16_to_cpu(txbuf->wlength))); |
| 1606 | |
| 1607 | /* txbuf was not consumed above -> send mgmt msg immediately */ |
| 1608 | memcpy(priv->bulk_out_buffer, txbuf, |
| 1609 | le16_to_cpu(txbuf->wlength) + AT76_TX_HDRLEN); |
| 1610 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, |
| 1611 | priv->bulk_out_buffer, |
| 1612 | le16_to_cpu(txbuf->wlength) + txbuf->padding + |
| 1613 | AT76_TX_HDRLEN, at76_tx_callback, priv); |
| 1614 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); |
| 1615 | if (ret) |
| 1616 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", |
| 1617 | priv->netdev->name, ret); |
| 1618 | |
| 1619 | kfree(txbuf); |
| 1620 | |
| 1621 | return ret; |
| 1622 | } |
| 1623 | |
| 1624 | /* Go to the next information element */ |
| 1625 | static inline void next_ie(struct ieee80211_info_element **ie) |
| 1626 | { |
| 1627 | *ie = (struct ieee80211_info_element *)(&(*ie)->data[(*ie)->len]); |
| 1628 | } |
| 1629 | |
| 1630 | /* Challenge is the challenge string (in TLV format) |
| 1631 | we got with seq_nr 2 for shared secret authentication only and |
| 1632 | send in seq_nr 3 WEP encrypted to prove we have the correct WEP key; |
| 1633 | otherwise it is NULL */ |
| 1634 | static int at76_auth_req(struct at76_priv *priv, struct bss_info *bss, |
| 1635 | int seq_nr, struct ieee80211_info_element *challenge) |
| 1636 | { |
| 1637 | struct at76_tx_buffer *tx_buffer; |
| 1638 | struct ieee80211_hdr_3addr *mgmt; |
| 1639 | struct ieee80211_auth *req; |
| 1640 | int buf_len = (seq_nr != 3 ? AUTH_FRAME_SIZE : |
| 1641 | AUTH_FRAME_SIZE + 1 + 1 + challenge->len); |
| 1642 | |
| 1643 | BUG_ON(!bss); |
| 1644 | BUG_ON(seq_nr == 3 && !challenge); |
| 1645 | tx_buffer = kmalloc(buf_len + MAX_PADDING_SIZE, GFP_ATOMIC); |
| 1646 | if (!tx_buffer) |
| 1647 | return -ENOMEM; |
| 1648 | |
| 1649 | req = (struct ieee80211_auth *)tx_buffer->packet; |
| 1650 | mgmt = &req->header; |
| 1651 | |
| 1652 | /* make wireless header */ |
| 1653 | /* first auth msg is not encrypted, only the second (seq_nr == 3) */ |
| 1654 | mgmt->frame_ctl = |
| 1655 | cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH | |
| 1656 | (seq_nr == 3 ? IEEE80211_FCTL_PROTECTED : 0)); |
| 1657 | |
| 1658 | mgmt->duration_id = cpu_to_le16(0x8000); |
| 1659 | memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); |
| 1660 | memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); |
| 1661 | memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); |
| 1662 | mgmt->seq_ctl = cpu_to_le16(0); |
| 1663 | |
| 1664 | req->algorithm = cpu_to_le16(priv->auth_mode); |
| 1665 | req->transaction = cpu_to_le16(seq_nr); |
| 1666 | req->status = cpu_to_le16(0); |
| 1667 | |
| 1668 | if (seq_nr == 3) |
| 1669 | memcpy(req->info_element, challenge, 1 + 1 + challenge->len); |
| 1670 | |
| 1671 | /* init. at76_priv tx header */ |
| 1672 | tx_buffer->wlength = cpu_to_le16(buf_len - AT76_TX_HDRLEN); |
| 1673 | at76_dbg(DBG_TX_MGMT, "%s: AuthReq bssid %s alg %d seq_nr %d", |
| 1674 | priv->netdev->name, mac2str(mgmt->addr3), |
| 1675 | le16_to_cpu(req->algorithm), le16_to_cpu(req->transaction)); |
| 1676 | if (seq_nr == 3) |
| 1677 | at76_dbg(DBG_TX_MGMT, "%s: AuthReq challenge: %s ...", |
| 1678 | priv->netdev->name, hex2str(req->info_element, 18)); |
| 1679 | |
| 1680 | /* either send immediately (if no data tx is pending |
| 1681 | or put it in pending list */ |
| 1682 | return at76_tx_mgmt(priv, tx_buffer); |
| 1683 | } |
| 1684 | |
| 1685 | static int at76_assoc_req(struct at76_priv *priv, struct bss_info *bss) |
| 1686 | { |
| 1687 | struct at76_tx_buffer *tx_buffer; |
| 1688 | struct ieee80211_hdr_3addr *mgmt; |
| 1689 | struct ieee80211_assoc_request *req; |
| 1690 | struct ieee80211_info_element *ie; |
| 1691 | char *essid; |
| 1692 | int essid_len; |
| 1693 | u16 capa; |
| 1694 | |
| 1695 | BUG_ON(!bss); |
| 1696 | |
| 1697 | tx_buffer = kmalloc(ASSOCREQ_MAX_SIZE + MAX_PADDING_SIZE, GFP_ATOMIC); |
| 1698 | if (!tx_buffer) |
| 1699 | return -ENOMEM; |
| 1700 | |
| 1701 | req = (struct ieee80211_assoc_request *)tx_buffer->packet; |
| 1702 | mgmt = &req->header; |
| 1703 | ie = req->info_element; |
| 1704 | |
| 1705 | /* make wireless header */ |
| 1706 | mgmt->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| 1707 | IEEE80211_STYPE_ASSOC_REQ); |
| 1708 | |
| 1709 | mgmt->duration_id = cpu_to_le16(0x8000); |
| 1710 | memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); |
| 1711 | memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); |
| 1712 | memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); |
| 1713 | mgmt->seq_ctl = cpu_to_le16(0); |
| 1714 | |
| 1715 | /* we must set the Privacy bit in the capabilities to assure an |
| 1716 | Agere-based AP with optional WEP transmits encrypted frames |
| 1717 | to us. AP only set the Privacy bit in their capabilities |
| 1718 | if WEP is mandatory in the BSS! */ |
| 1719 | capa = bss->capa; |
| 1720 | if (priv->wep_enabled) |
| 1721 | capa |= WLAN_CAPABILITY_PRIVACY; |
| 1722 | if (priv->preamble_type != PREAMBLE_TYPE_LONG) |
| 1723 | capa |= WLAN_CAPABILITY_SHORT_PREAMBLE; |
| 1724 | req->capability = cpu_to_le16(capa); |
| 1725 | |
| 1726 | req->listen_interval = cpu_to_le16(2 * bss->beacon_interval); |
| 1727 | |
| 1728 | /* write TLV data elements */ |
| 1729 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 1730 | ie->id = WLAN_EID_SSID; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1731 | ie->len = bss->ssid_len; |
| 1732 | memcpy(ie->data, bss->ssid, bss->ssid_len); |
| 1733 | next_ie(&ie); |
| 1734 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 1735 | ie->id = WLAN_EID_SUPP_RATES; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 1736 | ie->len = sizeof(hw_rates); |
| 1737 | memcpy(ie->data, hw_rates, sizeof(hw_rates)); |
| 1738 | next_ie(&ie); /* ie points behind the supp_rates field */ |
| 1739 | |
| 1740 | /* init. at76_priv tx header */ |
| 1741 | tx_buffer->wlength = cpu_to_le16((u8 *)ie - (u8 *)mgmt); |
| 1742 | |
| 1743 | ie = req->info_element; |
| 1744 | essid = ie->data; |
| 1745 | essid_len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); |
| 1746 | |
| 1747 | next_ie(&ie); /* points to IE of rates now */ |
| 1748 | at76_dbg(DBG_TX_MGMT, |
| 1749 | "%s: AssocReq bssid %s capa 0x%04x ssid %.*s rates %s", |
| 1750 | priv->netdev->name, mac2str(mgmt->addr3), |
| 1751 | le16_to_cpu(req->capability), essid_len, essid, |
| 1752 | hex2str(ie->data, ie->len)); |
| 1753 | |
| 1754 | /* either send immediately (if no data tx is pending |
| 1755 | or put it in pending list */ |
| 1756 | return at76_tx_mgmt(priv, tx_buffer); |
| 1757 | } |
| 1758 | |
| 1759 | /* We got to check the bss_list for old entries */ |
| 1760 | static void at76_bss_list_timeout(unsigned long par) |
| 1761 | { |
| 1762 | struct at76_priv *priv = (struct at76_priv *)par; |
| 1763 | unsigned long flags; |
| 1764 | struct list_head *lptr, *nptr; |
| 1765 | struct bss_info *ptr; |
| 1766 | |
| 1767 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 1768 | |
| 1769 | list_for_each_safe(lptr, nptr, &priv->bss_list) { |
| 1770 | |
| 1771 | ptr = list_entry(lptr, struct bss_info, list); |
| 1772 | |
| 1773 | if (ptr != priv->curr_bss |
| 1774 | && time_after(jiffies, ptr->last_rx + BSS_LIST_TIMEOUT)) { |
| 1775 | at76_dbg(DBG_BSS_TABLE_RM, |
| 1776 | "%s: bss_list: removing old BSS %s ch %d", |
| 1777 | priv->netdev->name, mac2str(ptr->bssid), |
| 1778 | ptr->channel); |
| 1779 | list_del(&ptr->list); |
| 1780 | kfree(ptr); |
| 1781 | } |
| 1782 | } |
| 1783 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 1784 | /* restart the timer */ |
| 1785 | mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); |
| 1786 | } |
| 1787 | |
| 1788 | static inline void at76_set_mac_state(struct at76_priv *priv, |
| 1789 | enum mac_state mac_state) |
| 1790 | { |
| 1791 | at76_dbg(DBG_MAC_STATE, "%s state: %s", priv->netdev->name, |
| 1792 | mac_states[mac_state]); |
| 1793 | priv->mac_state = mac_state; |
| 1794 | } |
| 1795 | |
| 1796 | static void at76_dump_bss_table(struct at76_priv *priv) |
| 1797 | { |
| 1798 | struct bss_info *ptr; |
| 1799 | unsigned long flags; |
| 1800 | struct list_head *lptr; |
| 1801 | |
| 1802 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 1803 | |
| 1804 | at76_dbg(DBG_BSS_TABLE, "%s BSS table (curr=%p):", priv->netdev->name, |
| 1805 | priv->curr_bss); |
| 1806 | |
| 1807 | list_for_each(lptr, &priv->bss_list) { |
| 1808 | ptr = list_entry(lptr, struct bss_info, list); |
| 1809 | at76_dbg(DBG_BSS_TABLE, "0x%p: bssid %s channel %d ssid %.*s " |
| 1810 | "(%s) capa 0x%04x rates %s rssi %d link %d noise %d", |
| 1811 | ptr, mac2str(ptr->bssid), ptr->channel, ptr->ssid_len, |
| 1812 | ptr->ssid, hex2str(ptr->ssid, ptr->ssid_len), |
| 1813 | ptr->capa, hex2str(ptr->rates, ptr->rates_len), |
| 1814 | ptr->rssi, ptr->link_qual, ptr->noise_level); |
| 1815 | } |
| 1816 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 1817 | } |
| 1818 | |
| 1819 | /* Called upon successful association to mark interface as connected */ |
| 1820 | static void at76_work_assoc_done(struct work_struct *work) |
| 1821 | { |
| 1822 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1823 | work_assoc_done); |
| 1824 | |
| 1825 | mutex_lock(&priv->mtx); |
| 1826 | |
| 1827 | WARN_ON(priv->mac_state != MAC_ASSOC); |
| 1828 | WARN_ON(!priv->curr_bss); |
| 1829 | if (priv->mac_state != MAC_ASSOC || !priv->curr_bss) |
| 1830 | goto exit; |
| 1831 | |
| 1832 | if (priv->iw_mode == IW_MODE_INFRA) { |
| 1833 | if (priv->pm_mode != AT76_PM_OFF) { |
| 1834 | /* calculate the listen interval in units of |
| 1835 | beacon intervals of the curr_bss */ |
| 1836 | u32 pm_period_beacon = (priv->pm_period >> 10) / |
| 1837 | priv->curr_bss->beacon_interval; |
| 1838 | |
| 1839 | pm_period_beacon = max(pm_period_beacon, 2u); |
| 1840 | pm_period_beacon = min(pm_period_beacon, 0xffffu); |
| 1841 | |
| 1842 | at76_dbg(DBG_PM, |
| 1843 | "%s: pm_mode %d assoc id 0x%x listen int %d", |
| 1844 | priv->netdev->name, priv->pm_mode, |
| 1845 | priv->assoc_id, pm_period_beacon); |
| 1846 | |
| 1847 | at76_set_associd(priv, priv->assoc_id); |
| 1848 | at76_set_listen_interval(priv, (u16)pm_period_beacon); |
| 1849 | } |
| 1850 | schedule_delayed_work(&priv->dwork_beacon, BEACON_TIMEOUT); |
| 1851 | } |
| 1852 | at76_set_pm_mode(priv); |
| 1853 | |
| 1854 | netif_carrier_on(priv->netdev); |
| 1855 | netif_wake_queue(priv->netdev); |
| 1856 | at76_set_mac_state(priv, MAC_CONNECTED); |
| 1857 | at76_iwevent_bss_connect(priv->netdev, priv->curr_bss->bssid); |
| 1858 | at76_dbg(DBG_PROGRESS, "%s: connected to BSSID %s", |
| 1859 | priv->netdev->name, mac2str(priv->curr_bss->bssid)); |
| 1860 | |
| 1861 | exit: |
| 1862 | mutex_unlock(&priv->mtx); |
| 1863 | } |
| 1864 | |
| 1865 | /* We only store the new mac address in netdev struct, |
| 1866 | it gets set when the netdev is opened. */ |
| 1867 | static int at76_set_mac_address(struct net_device *netdev, void *addr) |
| 1868 | { |
| 1869 | struct sockaddr *mac = addr; |
| 1870 | memcpy(netdev->dev_addr, mac->sa_data, ETH_ALEN); |
| 1871 | return 1; |
| 1872 | } |
| 1873 | |
| 1874 | static struct net_device_stats *at76_get_stats(struct net_device *netdev) |
| 1875 | { |
| 1876 | struct at76_priv *priv = netdev_priv(netdev); |
| 1877 | return &priv->stats; |
| 1878 | } |
| 1879 | |
| 1880 | static struct iw_statistics *at76_get_wireless_stats(struct net_device *netdev) |
| 1881 | { |
| 1882 | struct at76_priv *priv = netdev_priv(netdev); |
| 1883 | |
| 1884 | at76_dbg(DBG_IOCTL, "RETURN qual %d level %d noise %d updated %d", |
| 1885 | priv->wstats.qual.qual, priv->wstats.qual.level, |
| 1886 | priv->wstats.qual.noise, priv->wstats.qual.updated); |
| 1887 | |
| 1888 | return &priv->wstats; |
| 1889 | } |
| 1890 | |
| 1891 | static void at76_set_multicast(struct net_device *netdev) |
| 1892 | { |
| 1893 | struct at76_priv *priv = netdev_priv(netdev); |
| 1894 | int promisc; |
| 1895 | |
| 1896 | promisc = ((netdev->flags & IFF_PROMISC) != 0); |
| 1897 | if (promisc != priv->promisc) { |
| 1898 | /* This gets called in interrupt, must reschedule */ |
| 1899 | priv->promisc = promisc; |
| 1900 | schedule_work(&priv->work_set_promisc); |
| 1901 | } |
| 1902 | } |
| 1903 | |
| 1904 | /* Stop all network activity, flush all pending tasks */ |
| 1905 | static void at76_quiesce(struct at76_priv *priv) |
| 1906 | { |
| 1907 | unsigned long flags; |
| 1908 | |
| 1909 | netif_stop_queue(priv->netdev); |
| 1910 | netif_carrier_off(priv->netdev); |
| 1911 | |
| 1912 | at76_set_mac_state(priv, MAC_INIT); |
| 1913 | |
| 1914 | cancel_delayed_work(&priv->dwork_get_scan); |
| 1915 | cancel_delayed_work(&priv->dwork_beacon); |
| 1916 | cancel_delayed_work(&priv->dwork_auth); |
| 1917 | cancel_delayed_work(&priv->dwork_assoc); |
| 1918 | cancel_delayed_work(&priv->dwork_restart); |
| 1919 | |
| 1920 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); |
| 1921 | kfree(priv->next_mgmt_bulk); |
| 1922 | priv->next_mgmt_bulk = NULL; |
| 1923 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); |
| 1924 | } |
| 1925 | |
| 1926 | /******************************************************************************* |
| 1927 | * at76_priv implementations of iw_handler functions: |
| 1928 | */ |
| 1929 | static int at76_iw_handler_commit(struct net_device *netdev, |
| 1930 | struct iw_request_info *info, |
| 1931 | void *null, char *extra) |
| 1932 | { |
| 1933 | struct at76_priv *priv = netdev_priv(netdev); |
| 1934 | |
| 1935 | at76_dbg(DBG_IOCTL, "%s %s: restarting the device", netdev->name, |
| 1936 | __func__); |
| 1937 | |
| 1938 | if (priv->mac_state != MAC_INIT) |
| 1939 | at76_quiesce(priv); |
| 1940 | |
| 1941 | /* Wait half second before the restart to process subsequent |
| 1942 | * requests from the same iwconfig in a single restart */ |
| 1943 | schedule_delayed_work(&priv->dwork_restart, HZ / 2); |
| 1944 | |
| 1945 | return 0; |
| 1946 | } |
| 1947 | |
| 1948 | static int at76_iw_handler_get_name(struct net_device *netdev, |
| 1949 | struct iw_request_info *info, |
| 1950 | char *name, char *extra) |
| 1951 | { |
| 1952 | strcpy(name, "IEEE 802.11b"); |
| 1953 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWNAME - name %s", netdev->name, name); |
| 1954 | return 0; |
| 1955 | } |
| 1956 | |
| 1957 | static int at76_iw_handler_set_freq(struct net_device *netdev, |
| 1958 | struct iw_request_info *info, |
| 1959 | struct iw_freq *freq, char *extra) |
| 1960 | { |
| 1961 | struct at76_priv *priv = netdev_priv(netdev); |
| 1962 | int chan = -1; |
| 1963 | int ret = -EIWCOMMIT; |
| 1964 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - freq.m %d freq.e %d", |
| 1965 | netdev->name, freq->m, freq->e); |
| 1966 | |
| 1967 | if ((freq->e == 0) && (freq->m <= 1000)) |
| 1968 | /* Setting by channel number */ |
| 1969 | chan = freq->m; |
| 1970 | else { |
| 1971 | /* Setting by frequency - search the table */ |
| 1972 | int mult = 1; |
| 1973 | int i; |
| 1974 | |
| 1975 | for (i = 0; i < (6 - freq->e); i++) |
| 1976 | mult *= 10; |
| 1977 | |
| 1978 | for (i = 0; i < NUM_CHANNELS; i++) { |
| 1979 | if (freq->m == (channel_frequency[i] * mult)) |
| 1980 | chan = i + 1; |
| 1981 | } |
| 1982 | } |
| 1983 | |
| 1984 | if (chan < 1 || !priv->domain) |
| 1985 | /* non-positive channels are invalid |
| 1986 | * we need a domain info to set the channel |
| 1987 | * either that or an invalid frequency was |
| 1988 | * provided by the user */ |
| 1989 | ret = -EINVAL; |
| 1990 | else if (!(priv->domain->channel_map & (1 << (chan - 1)))) { |
| 1991 | printk(KERN_INFO "%s: channel %d not allowed for domain %s\n", |
| 1992 | priv->netdev->name, chan, priv->domain->name); |
| 1993 | ret = -EINVAL; |
| 1994 | } |
| 1995 | |
| 1996 | if (ret == -EIWCOMMIT) { |
| 1997 | priv->channel = chan; |
| 1998 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - ch %d", netdev->name, |
| 1999 | chan); |
| 2000 | } |
| 2001 | |
| 2002 | return ret; |
| 2003 | } |
| 2004 | |
| 2005 | static int at76_iw_handler_get_freq(struct net_device *netdev, |
| 2006 | struct iw_request_info *info, |
| 2007 | struct iw_freq *freq, char *extra) |
| 2008 | { |
| 2009 | struct at76_priv *priv = netdev_priv(netdev); |
| 2010 | |
| 2011 | freq->m = priv->channel; |
| 2012 | freq->e = 0; |
| 2013 | |
| 2014 | if (priv->channel) |
| 2015 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - freq %ld x 10e%d", |
| 2016 | netdev->name, channel_frequency[priv->channel - 1], 6); |
| 2017 | |
| 2018 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - ch %d", netdev->name, |
| 2019 | priv->channel); |
| 2020 | |
| 2021 | return 0; |
| 2022 | } |
| 2023 | |
| 2024 | static int at76_iw_handler_set_mode(struct net_device *netdev, |
| 2025 | struct iw_request_info *info, |
| 2026 | __u32 *mode, char *extra) |
| 2027 | { |
| 2028 | struct at76_priv *priv = netdev_priv(netdev); |
| 2029 | |
| 2030 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWMODE - %d", netdev->name, *mode); |
| 2031 | |
| 2032 | if ((*mode != IW_MODE_ADHOC) && (*mode != IW_MODE_INFRA) && |
| 2033 | (*mode != IW_MODE_MONITOR)) |
| 2034 | return -EINVAL; |
| 2035 | |
| 2036 | priv->iw_mode = *mode; |
| 2037 | if (priv->iw_mode != IW_MODE_INFRA) |
| 2038 | priv->pm_mode = AT76_PM_OFF; |
| 2039 | |
| 2040 | return -EIWCOMMIT; |
| 2041 | } |
| 2042 | |
| 2043 | static int at76_iw_handler_get_mode(struct net_device *netdev, |
| 2044 | struct iw_request_info *info, |
| 2045 | __u32 *mode, char *extra) |
| 2046 | { |
| 2047 | struct at76_priv *priv = netdev_priv(netdev); |
| 2048 | |
| 2049 | *mode = priv->iw_mode; |
| 2050 | |
| 2051 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWMODE - %d", netdev->name, *mode); |
| 2052 | |
| 2053 | return 0; |
| 2054 | } |
| 2055 | |
| 2056 | static int at76_iw_handler_get_range(struct net_device *netdev, |
| 2057 | struct iw_request_info *info, |
| 2058 | struct iw_point *data, char *extra) |
| 2059 | { |
| 2060 | /* inspired by atmel.c */ |
| 2061 | struct at76_priv *priv = netdev_priv(netdev); |
| 2062 | struct iw_range *range = (struct iw_range *)extra; |
| 2063 | int i; |
| 2064 | |
| 2065 | data->length = sizeof(struct iw_range); |
| 2066 | memset(range, 0, sizeof(struct iw_range)); |
| 2067 | |
| 2068 | /* TODO: range->throughput = xxxxxx; */ |
| 2069 | |
| 2070 | range->min_nwid = 0x0000; |
| 2071 | range->max_nwid = 0x0000; |
| 2072 | |
| 2073 | /* this driver doesn't maintain sensitivity information */ |
| 2074 | range->sensitivity = 0; |
| 2075 | |
| 2076 | range->max_qual.qual = 100; |
| 2077 | range->max_qual.level = 100; |
| 2078 | range->max_qual.noise = 0; |
| 2079 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2080 | |
| 2081 | range->avg_qual.qual = 50; |
| 2082 | range->avg_qual.level = 50; |
| 2083 | range->avg_qual.noise = 0; |
| 2084 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2085 | |
| 2086 | range->bitrate[0] = 1000000; |
| 2087 | range->bitrate[1] = 2000000; |
| 2088 | range->bitrate[2] = 5500000; |
| 2089 | range->bitrate[3] = 11000000; |
| 2090 | range->num_bitrates = 4; |
| 2091 | |
| 2092 | range->min_rts = 0; |
| 2093 | range->max_rts = MAX_RTS_THRESHOLD; |
| 2094 | |
| 2095 | range->min_frag = MIN_FRAG_THRESHOLD; |
| 2096 | range->max_frag = MAX_FRAG_THRESHOLD; |
| 2097 | |
| 2098 | range->pmp_flags = IW_POWER_PERIOD; |
| 2099 | range->pmt_flags = IW_POWER_ON; |
| 2100 | range->pm_capa = IW_POWER_PERIOD | IW_POWER_ALL_R; |
| 2101 | |
| 2102 | range->encoding_size[0] = WEP_SMALL_KEY_LEN; |
| 2103 | range->encoding_size[1] = WEP_LARGE_KEY_LEN; |
| 2104 | range->num_encoding_sizes = 2; |
| 2105 | range->max_encoding_tokens = WEP_KEYS; |
| 2106 | |
| 2107 | /* both WL-240U and Linksys WUSB11 v2.6 specify 15 dBm as output power |
| 2108 | - take this for all (ignore antenna gains) */ |
| 2109 | range->txpower[0] = 15; |
| 2110 | range->num_txpower = 1; |
| 2111 | range->txpower_capa = IW_TXPOW_DBM; |
| 2112 | |
| 2113 | range->we_version_source = WIRELESS_EXT; |
| 2114 | range->we_version_compiled = WIRELESS_EXT; |
| 2115 | |
| 2116 | /* same as the values used in atmel.c */ |
| 2117 | range->retry_capa = IW_RETRY_LIMIT; |
| 2118 | range->retry_flags = IW_RETRY_LIMIT; |
| 2119 | range->r_time_flags = 0; |
| 2120 | range->min_retry = 1; |
| 2121 | range->max_retry = 255; |
| 2122 | |
| 2123 | range->num_channels = NUM_CHANNELS; |
| 2124 | range->num_frequency = 0; |
| 2125 | |
| 2126 | for (i = 0; i < NUM_CHANNELS; i++) { |
| 2127 | /* test if channel map bit is raised */ |
| 2128 | if (priv->domain->channel_map & (0x1 << i)) { |
| 2129 | range->num_frequency += 1; |
| 2130 | |
| 2131 | range->freq[i].i = i + 1; |
| 2132 | range->freq[i].m = channel_frequency[i] * 100000; |
| 2133 | range->freq[i].e = 1; /* freq * 10^1 */ |
| 2134 | } |
| 2135 | } |
| 2136 | |
| 2137 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRANGE", netdev->name); |
| 2138 | |
| 2139 | return 0; |
| 2140 | } |
| 2141 | |
| 2142 | static int at76_iw_handler_set_spy(struct net_device *netdev, |
| 2143 | struct iw_request_info *info, |
| 2144 | struct iw_point *data, char *extra) |
| 2145 | { |
| 2146 | struct at76_priv *priv = netdev_priv(netdev); |
| 2147 | int ret = 0; |
| 2148 | |
| 2149 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWSPY - number of addresses %d", |
| 2150 | netdev->name, data->length); |
| 2151 | |
| 2152 | spin_lock_bh(&priv->spy_spinlock); |
| 2153 | ret = iw_handler_set_spy(priv->netdev, info, (union iwreq_data *)data, |
| 2154 | extra); |
| 2155 | spin_unlock_bh(&priv->spy_spinlock); |
| 2156 | |
| 2157 | return ret; |
| 2158 | } |
| 2159 | |
| 2160 | static int at76_iw_handler_get_spy(struct net_device *netdev, |
| 2161 | struct iw_request_info *info, |
| 2162 | struct iw_point *data, char *extra) |
| 2163 | { |
| 2164 | |
| 2165 | struct at76_priv *priv = netdev_priv(netdev); |
| 2166 | int ret = 0; |
| 2167 | |
| 2168 | spin_lock_bh(&priv->spy_spinlock); |
| 2169 | ret = iw_handler_get_spy(priv->netdev, info, |
| 2170 | (union iwreq_data *)data, extra); |
| 2171 | spin_unlock_bh(&priv->spy_spinlock); |
| 2172 | |
| 2173 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWSPY - number of addresses %d", |
| 2174 | netdev->name, data->length); |
| 2175 | |
| 2176 | return ret; |
| 2177 | } |
| 2178 | |
| 2179 | static int at76_iw_handler_set_thrspy(struct net_device *netdev, |
| 2180 | struct iw_request_info *info, |
| 2181 | struct iw_point *data, char *extra) |
| 2182 | { |
| 2183 | struct at76_priv *priv = netdev_priv(netdev); |
| 2184 | int ret; |
| 2185 | |
| 2186 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWTHRSPY - number of addresses %d)", |
| 2187 | netdev->name, data->length); |
| 2188 | |
| 2189 | spin_lock_bh(&priv->spy_spinlock); |
| 2190 | ret = iw_handler_set_thrspy(netdev, info, (union iwreq_data *)data, |
| 2191 | extra); |
| 2192 | spin_unlock_bh(&priv->spy_spinlock); |
| 2193 | |
| 2194 | return ret; |
| 2195 | } |
| 2196 | |
| 2197 | static int at76_iw_handler_get_thrspy(struct net_device *netdev, |
| 2198 | struct iw_request_info *info, |
| 2199 | struct iw_point *data, char *extra) |
| 2200 | { |
| 2201 | struct at76_priv *priv = netdev_priv(netdev); |
| 2202 | int ret; |
| 2203 | |
| 2204 | spin_lock_bh(&priv->spy_spinlock); |
| 2205 | ret = iw_handler_get_thrspy(netdev, info, (union iwreq_data *)data, |
| 2206 | extra); |
| 2207 | spin_unlock_bh(&priv->spy_spinlock); |
| 2208 | |
| 2209 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWTHRSPY - number of addresses %d)", |
| 2210 | netdev->name, data->length); |
| 2211 | |
| 2212 | return ret; |
| 2213 | } |
| 2214 | |
| 2215 | static int at76_iw_handler_set_wap(struct net_device *netdev, |
| 2216 | struct iw_request_info *info, |
| 2217 | struct sockaddr *ap_addr, char *extra) |
| 2218 | { |
| 2219 | struct at76_priv *priv = netdev_priv(netdev); |
| 2220 | |
| 2221 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWAP - wap/bssid %s", netdev->name, |
| 2222 | mac2str(ap_addr->sa_data)); |
| 2223 | |
| 2224 | /* if the incoming address == ff:ff:ff:ff:ff:ff, the user has |
| 2225 | chosen any or auto AP preference */ |
| 2226 | if (is_broadcast_ether_addr(ap_addr->sa_data) |
| 2227 | || is_zero_ether_addr(ap_addr->sa_data)) |
| 2228 | priv->wanted_bssid_valid = 0; |
| 2229 | else { |
| 2230 | /* user wants to set a preferred AP address */ |
| 2231 | priv->wanted_bssid_valid = 1; |
| 2232 | memcpy(priv->wanted_bssid, ap_addr->sa_data, ETH_ALEN); |
| 2233 | } |
| 2234 | |
| 2235 | return -EIWCOMMIT; |
| 2236 | } |
| 2237 | |
| 2238 | static int at76_iw_handler_get_wap(struct net_device *netdev, |
| 2239 | struct iw_request_info *info, |
| 2240 | struct sockaddr *ap_addr, char *extra) |
| 2241 | { |
| 2242 | struct at76_priv *priv = netdev_priv(netdev); |
| 2243 | |
| 2244 | ap_addr->sa_family = ARPHRD_ETHER; |
| 2245 | memcpy(ap_addr->sa_data, priv->bssid, ETH_ALEN); |
| 2246 | |
| 2247 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWAP - wap/bssid %s", netdev->name, |
| 2248 | mac2str(ap_addr->sa_data)); |
| 2249 | |
| 2250 | return 0; |
| 2251 | } |
| 2252 | |
| 2253 | static int at76_iw_handler_set_scan(struct net_device *netdev, |
| 2254 | struct iw_request_info *info, |
| 2255 | union iwreq_data *wrqu, char *extra) |
| 2256 | { |
| 2257 | struct at76_priv *priv = netdev_priv(netdev); |
| 2258 | int ret = 0; |
| 2259 | |
| 2260 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWSCAN", netdev->name); |
| 2261 | |
| 2262 | if (mutex_lock_interruptible(&priv->mtx)) |
| 2263 | return -EINTR; |
| 2264 | |
| 2265 | if (!netif_running(netdev)) { |
| 2266 | ret = -ENETDOWN; |
| 2267 | goto exit; |
| 2268 | } |
| 2269 | |
| 2270 | /* jal: we don't allow "iwlist ethX scan" while we are |
| 2271 | in monitor mode */ |
| 2272 | if (priv->iw_mode == IW_MODE_MONITOR) { |
| 2273 | ret = -EBUSY; |
| 2274 | goto exit; |
| 2275 | } |
| 2276 | |
| 2277 | /* Discard old scan results */ |
| 2278 | if ((jiffies - priv->last_scan) > (20 * HZ)) |
| 2279 | priv->scan_state = SCAN_IDLE; |
| 2280 | priv->last_scan = jiffies; |
| 2281 | |
| 2282 | /* Initiate a scan command */ |
| 2283 | if (priv->scan_state == SCAN_IN_PROGRESS) { |
| 2284 | ret = -EBUSY; |
| 2285 | goto exit; |
| 2286 | } |
| 2287 | |
| 2288 | priv->scan_state = SCAN_IN_PROGRESS; |
| 2289 | |
| 2290 | at76_quiesce(priv); |
| 2291 | |
| 2292 | /* Try to do passive or active scan if WE asks as. */ |
| 2293 | if (wrqu->data.length |
| 2294 | && wrqu->data.length == sizeof(struct iw_scan_req)) { |
| 2295 | struct iw_scan_req *req = (struct iw_scan_req *)extra; |
| 2296 | |
| 2297 | if (req->scan_type == IW_SCAN_TYPE_PASSIVE) |
| 2298 | priv->scan_mode = SCAN_TYPE_PASSIVE; |
| 2299 | else if (req->scan_type == IW_SCAN_TYPE_ACTIVE) |
| 2300 | priv->scan_mode = SCAN_TYPE_ACTIVE; |
| 2301 | |
| 2302 | /* Sanity check values? */ |
| 2303 | if (req->min_channel_time > 0) |
| 2304 | priv->scan_min_time = req->min_channel_time; |
| 2305 | |
| 2306 | if (req->max_channel_time > 0) |
| 2307 | priv->scan_max_time = req->max_channel_time; |
| 2308 | } |
| 2309 | |
| 2310 | /* change to scanning state */ |
| 2311 | at76_set_mac_state(priv, MAC_SCANNING); |
| 2312 | schedule_work(&priv->work_start_scan); |
| 2313 | |
| 2314 | exit: |
| 2315 | mutex_unlock(&priv->mtx); |
| 2316 | return ret; |
| 2317 | } |
| 2318 | |
| 2319 | static int at76_iw_handler_get_scan(struct net_device *netdev, |
| 2320 | struct iw_request_info *info, |
| 2321 | struct iw_point *data, char *extra) |
| 2322 | { |
| 2323 | struct at76_priv *priv = netdev_priv(netdev); |
| 2324 | unsigned long flags; |
| 2325 | struct list_head *lptr, *nptr; |
| 2326 | struct bss_info *curr_bss; |
| 2327 | struct iw_event *iwe = kmalloc(sizeof(struct iw_event), GFP_KERNEL); |
| 2328 | char *curr_val, *curr_pos = extra; |
| 2329 | int i; |
| 2330 | |
| 2331 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWSCAN", netdev->name); |
| 2332 | |
| 2333 | if (!iwe) |
| 2334 | return -ENOMEM; |
| 2335 | |
| 2336 | if (priv->scan_state != SCAN_COMPLETED) { |
| 2337 | /* scan not yet finished */ |
| 2338 | kfree(iwe); |
| 2339 | return -EAGAIN; |
| 2340 | } |
| 2341 | |
| 2342 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 2343 | |
| 2344 | list_for_each_safe(lptr, nptr, &priv->bss_list) { |
| 2345 | curr_bss = list_entry(lptr, struct bss_info, list); |
| 2346 | |
| 2347 | iwe->cmd = SIOCGIWAP; |
| 2348 | iwe->u.ap_addr.sa_family = ARPHRD_ETHER; |
| 2349 | memcpy(iwe->u.ap_addr.sa_data, curr_bss->bssid, 6); |
| 2350 | curr_pos = iwe_stream_add_event(info, curr_pos, |
| 2351 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2352 | IW_EV_ADDR_LEN); |
| 2353 | |
| 2354 | iwe->u.data.length = curr_bss->ssid_len; |
| 2355 | iwe->cmd = SIOCGIWESSID; |
| 2356 | iwe->u.data.flags = 1; |
| 2357 | |
| 2358 | curr_pos = iwe_stream_add_point(info, curr_pos, |
| 2359 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2360 | curr_bss->ssid); |
| 2361 | |
| 2362 | iwe->cmd = SIOCGIWMODE; |
| 2363 | iwe->u.mode = (curr_bss->capa & WLAN_CAPABILITY_IBSS) ? |
| 2364 | IW_MODE_ADHOC : |
| 2365 | (curr_bss->capa & WLAN_CAPABILITY_ESS) ? |
| 2366 | IW_MODE_MASTER : IW_MODE_AUTO; |
| 2367 | /* IW_MODE_AUTO = 0 which I thought is |
| 2368 | * the most logical value to return in this case */ |
| 2369 | curr_pos = iwe_stream_add_event(info, curr_pos, |
| 2370 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2371 | IW_EV_UINT_LEN); |
| 2372 | |
| 2373 | iwe->cmd = SIOCGIWFREQ; |
| 2374 | iwe->u.freq.m = curr_bss->channel; |
| 2375 | iwe->u.freq.e = 0; |
| 2376 | curr_pos = iwe_stream_add_event(info, curr_pos, |
| 2377 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2378 | IW_EV_FREQ_LEN); |
| 2379 | |
| 2380 | iwe->cmd = SIOCGIWENCODE; |
| 2381 | if (curr_bss->capa & WLAN_CAPABILITY_PRIVACY) |
| 2382 | iwe->u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 2383 | else |
| 2384 | iwe->u.data.flags = IW_ENCODE_DISABLED; |
| 2385 | |
| 2386 | iwe->u.data.length = 0; |
| 2387 | curr_pos = iwe_stream_add_point(info, curr_pos, |
| 2388 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2389 | NULL); |
| 2390 | |
| 2391 | /* Add quality statistics */ |
| 2392 | iwe->cmd = IWEVQUAL; |
| 2393 | iwe->u.qual.noise = 0; |
| 2394 | iwe->u.qual.updated = |
| 2395 | IW_QUAL_NOISE_INVALID | IW_QUAL_LEVEL_UPDATED; |
| 2396 | iwe->u.qual.level = (curr_bss->rssi * 100 / 42); |
| 2397 | if (iwe->u.qual.level > 100) |
| 2398 | iwe->u.qual.level = 100; |
| 2399 | if (at76_is_intersil(priv->board_type)) |
| 2400 | iwe->u.qual.qual = curr_bss->link_qual; |
| 2401 | else { |
| 2402 | iwe->u.qual.qual = 0; |
| 2403 | iwe->u.qual.updated |= IW_QUAL_QUAL_INVALID; |
| 2404 | } |
| 2405 | /* Add new value to event */ |
| 2406 | curr_pos = iwe_stream_add_event(info, curr_pos, |
| 2407 | extra + IW_SCAN_MAX_DATA, iwe, |
| 2408 | IW_EV_QUAL_LEN); |
| 2409 | |
| 2410 | /* Rate: stuffing multiple values in a single event requires |
| 2411 | * a bit more of magic - Jean II */ |
| 2412 | curr_val = curr_pos + IW_EV_LCP_LEN; |
| 2413 | |
| 2414 | iwe->cmd = SIOCGIWRATE; |
| 2415 | /* Those two flags are ignored... */ |
| 2416 | iwe->u.bitrate.fixed = 0; |
| 2417 | iwe->u.bitrate.disabled = 0; |
| 2418 | /* Max 8 values */ |
| 2419 | for (i = 0; i < curr_bss->rates_len; i++) { |
| 2420 | /* Bit rate given in 500 kb/s units (+ 0x80) */ |
| 2421 | iwe->u.bitrate.value = |
| 2422 | ((curr_bss->rates[i] & 0x7f) * 500000); |
| 2423 | /* Add new value to event */ |
| 2424 | curr_val = iwe_stream_add_value(info, curr_pos, |
| 2425 | curr_val, |
| 2426 | extra + |
| 2427 | IW_SCAN_MAX_DATA, iwe, |
| 2428 | IW_EV_PARAM_LEN); |
| 2429 | } |
| 2430 | |
| 2431 | /* Check if we added any event */ |
| 2432 | if ((curr_val - curr_pos) > IW_EV_LCP_LEN) |
| 2433 | curr_pos = curr_val; |
| 2434 | |
| 2435 | /* more information may be sent back using IWECUSTOM */ |
| 2436 | |
| 2437 | } |
| 2438 | |
| 2439 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 2440 | |
| 2441 | data->length = (curr_pos - extra); |
| 2442 | data->flags = 0; |
| 2443 | |
| 2444 | kfree(iwe); |
| 2445 | return 0; |
| 2446 | } |
| 2447 | |
| 2448 | static int at76_iw_handler_set_essid(struct net_device *netdev, |
| 2449 | struct iw_request_info *info, |
| 2450 | struct iw_point *data, char *extra) |
| 2451 | { |
| 2452 | struct at76_priv *priv = netdev_priv(netdev); |
| 2453 | |
| 2454 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWESSID - %s", netdev->name, extra); |
| 2455 | |
| 2456 | if (data->flags) { |
| 2457 | memcpy(priv->essid, extra, data->length); |
| 2458 | priv->essid_size = data->length; |
| 2459 | } else |
| 2460 | priv->essid_size = 0; /* Use any SSID */ |
| 2461 | |
| 2462 | return -EIWCOMMIT; |
| 2463 | } |
| 2464 | |
| 2465 | static int at76_iw_handler_get_essid(struct net_device *netdev, |
| 2466 | struct iw_request_info *info, |
| 2467 | struct iw_point *data, char *extra) |
| 2468 | { |
| 2469 | struct at76_priv *priv = netdev_priv(netdev); |
| 2470 | |
| 2471 | if (priv->essid_size) { |
| 2472 | /* not the ANY ssid in priv->essid */ |
| 2473 | data->flags = 1; |
| 2474 | data->length = priv->essid_size; |
| 2475 | memcpy(extra, priv->essid, data->length); |
| 2476 | } else { |
| 2477 | /* the ANY ssid was specified */ |
| 2478 | if (priv->mac_state == MAC_CONNECTED && priv->curr_bss) { |
| 2479 | /* report the SSID we have found */ |
| 2480 | data->flags = 1; |
| 2481 | data->length = priv->curr_bss->ssid_len; |
| 2482 | memcpy(extra, priv->curr_bss->ssid, data->length); |
| 2483 | } else { |
| 2484 | /* report ANY back */ |
| 2485 | data->flags = 0; |
| 2486 | data->length = 0; |
| 2487 | } |
| 2488 | } |
| 2489 | |
| 2490 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWESSID - %.*s", netdev->name, |
| 2491 | data->length, extra); |
| 2492 | |
| 2493 | return 0; |
| 2494 | } |
| 2495 | |
| 2496 | static int at76_iw_handler_set_rate(struct net_device *netdev, |
| 2497 | struct iw_request_info *info, |
| 2498 | struct iw_param *bitrate, char *extra) |
| 2499 | { |
| 2500 | struct at76_priv *priv = netdev_priv(netdev); |
| 2501 | int ret = -EIWCOMMIT; |
| 2502 | |
| 2503 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRATE - %d", netdev->name, |
| 2504 | bitrate->value); |
| 2505 | |
| 2506 | switch (bitrate->value) { |
| 2507 | case -1: |
| 2508 | priv->txrate = TX_RATE_AUTO; |
| 2509 | break; /* auto rate */ |
| 2510 | case 1000000: |
| 2511 | priv->txrate = TX_RATE_1MBIT; |
| 2512 | break; |
| 2513 | case 2000000: |
| 2514 | priv->txrate = TX_RATE_2MBIT; |
| 2515 | break; |
| 2516 | case 5500000: |
| 2517 | priv->txrate = TX_RATE_5_5MBIT; |
| 2518 | break; |
| 2519 | case 11000000: |
| 2520 | priv->txrate = TX_RATE_11MBIT; |
| 2521 | break; |
| 2522 | default: |
| 2523 | ret = -EINVAL; |
| 2524 | } |
| 2525 | |
| 2526 | return ret; |
| 2527 | } |
| 2528 | |
| 2529 | static int at76_iw_handler_get_rate(struct net_device *netdev, |
| 2530 | struct iw_request_info *info, |
| 2531 | struct iw_param *bitrate, char *extra) |
| 2532 | { |
| 2533 | struct at76_priv *priv = netdev_priv(netdev); |
| 2534 | int ret = 0; |
| 2535 | |
| 2536 | switch (priv->txrate) { |
| 2537 | /* return max rate if RATE_AUTO */ |
| 2538 | case TX_RATE_AUTO: |
| 2539 | bitrate->value = 11000000; |
| 2540 | break; |
| 2541 | case TX_RATE_1MBIT: |
| 2542 | bitrate->value = 1000000; |
| 2543 | break; |
| 2544 | case TX_RATE_2MBIT: |
| 2545 | bitrate->value = 2000000; |
| 2546 | break; |
| 2547 | case TX_RATE_5_5MBIT: |
| 2548 | bitrate->value = 5500000; |
| 2549 | break; |
| 2550 | case TX_RATE_11MBIT: |
| 2551 | bitrate->value = 11000000; |
| 2552 | break; |
| 2553 | default: |
| 2554 | ret = -EINVAL; |
| 2555 | } |
| 2556 | |
| 2557 | bitrate->fixed = (priv->txrate != TX_RATE_AUTO); |
| 2558 | bitrate->disabled = 0; |
| 2559 | |
| 2560 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRATE - %d", netdev->name, |
| 2561 | bitrate->value); |
| 2562 | |
| 2563 | return ret; |
| 2564 | } |
| 2565 | |
| 2566 | static int at76_iw_handler_set_rts(struct net_device *netdev, |
| 2567 | struct iw_request_info *info, |
| 2568 | struct iw_param *rts, char *extra) |
| 2569 | { |
| 2570 | struct at76_priv *priv = netdev_priv(netdev); |
| 2571 | int ret = -EIWCOMMIT; |
| 2572 | int rthr = rts->value; |
| 2573 | |
| 2574 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRTS - value %d disabled %s", |
| 2575 | netdev->name, rts->value, (rts->disabled) ? "true" : "false"); |
| 2576 | |
| 2577 | if (rts->disabled) |
| 2578 | rthr = MAX_RTS_THRESHOLD; |
| 2579 | |
| 2580 | if ((rthr < 0) || (rthr > MAX_RTS_THRESHOLD)) |
| 2581 | ret = -EINVAL; |
| 2582 | else |
| 2583 | priv->rts_threshold = rthr; |
| 2584 | |
| 2585 | return ret; |
| 2586 | } |
| 2587 | |
| 2588 | static int at76_iw_handler_get_rts(struct net_device *netdev, |
| 2589 | struct iw_request_info *info, |
| 2590 | struct iw_param *rts, char *extra) |
| 2591 | { |
| 2592 | struct at76_priv *priv = netdev_priv(netdev); |
| 2593 | |
| 2594 | rts->value = priv->rts_threshold; |
| 2595 | rts->disabled = (rts->value >= MAX_RTS_THRESHOLD); |
| 2596 | rts->fixed = 1; |
| 2597 | |
| 2598 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRTS - value %d disabled %s", |
| 2599 | netdev->name, rts->value, (rts->disabled) ? "true" : "false"); |
| 2600 | |
| 2601 | return 0; |
| 2602 | } |
| 2603 | |
| 2604 | static int at76_iw_handler_set_frag(struct net_device *netdev, |
| 2605 | struct iw_request_info *info, |
| 2606 | struct iw_param *frag, char *extra) |
| 2607 | { |
| 2608 | struct at76_priv *priv = netdev_priv(netdev); |
| 2609 | int ret = -EIWCOMMIT; |
| 2610 | int fthr = frag->value; |
| 2611 | |
| 2612 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFRAG - value %d, disabled %s", |
| 2613 | netdev->name, frag->value, |
| 2614 | (frag->disabled) ? "true" : "false"); |
| 2615 | |
| 2616 | if (frag->disabled) |
| 2617 | fthr = MAX_FRAG_THRESHOLD; |
| 2618 | |
| 2619 | if ((fthr < MIN_FRAG_THRESHOLD) || (fthr > MAX_FRAG_THRESHOLD)) |
| 2620 | ret = -EINVAL; |
| 2621 | else |
| 2622 | priv->frag_threshold = fthr & ~0x1; /* get an even value */ |
| 2623 | |
| 2624 | return ret; |
| 2625 | } |
| 2626 | |
| 2627 | static int at76_iw_handler_get_frag(struct net_device *netdev, |
| 2628 | struct iw_request_info *info, |
| 2629 | struct iw_param *frag, char *extra) |
| 2630 | { |
| 2631 | struct at76_priv *priv = netdev_priv(netdev); |
| 2632 | |
| 2633 | frag->value = priv->frag_threshold; |
| 2634 | frag->disabled = (frag->value >= MAX_FRAG_THRESHOLD); |
| 2635 | frag->fixed = 1; |
| 2636 | |
| 2637 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFRAG - value %d, disabled %s", |
| 2638 | netdev->name, frag->value, |
| 2639 | (frag->disabled) ? "true" : "false"); |
| 2640 | |
| 2641 | return 0; |
| 2642 | } |
| 2643 | |
| 2644 | static int at76_iw_handler_get_txpow(struct net_device *netdev, |
| 2645 | struct iw_request_info *info, |
| 2646 | struct iw_param *power, char *extra) |
| 2647 | { |
| 2648 | power->value = 15; |
| 2649 | power->fixed = 1; /* No power control */ |
| 2650 | power->disabled = 0; |
| 2651 | power->flags = IW_TXPOW_DBM; |
| 2652 | |
| 2653 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWTXPOW - txpow %d dBm", netdev->name, |
| 2654 | power->value); |
| 2655 | |
| 2656 | return 0; |
| 2657 | } |
| 2658 | |
| 2659 | /* jal: short retry is handled by the firmware (at least 0.90.x), |
| 2660 | while long retry is not (?) */ |
| 2661 | static int at76_iw_handler_set_retry(struct net_device *netdev, |
| 2662 | struct iw_request_info *info, |
| 2663 | struct iw_param *retry, char *extra) |
| 2664 | { |
| 2665 | struct at76_priv *priv = netdev_priv(netdev); |
| 2666 | int ret = -EIWCOMMIT; |
| 2667 | |
| 2668 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRETRY disabled %d flags 0x%x val %d", |
| 2669 | netdev->name, retry->disabled, retry->flags, retry->value); |
| 2670 | |
| 2671 | if (!retry->disabled && (retry->flags & IW_RETRY_LIMIT)) { |
| 2672 | if ((retry->flags & IW_RETRY_MIN) || |
| 2673 | !(retry->flags & IW_RETRY_MAX)) |
| 2674 | priv->short_retry_limit = retry->value; |
| 2675 | else |
| 2676 | ret = -EINVAL; |
| 2677 | } else |
| 2678 | ret = -EINVAL; |
| 2679 | |
| 2680 | return ret; |
| 2681 | } |
| 2682 | |
| 2683 | /* Adapted (ripped) from atmel.c */ |
| 2684 | static int at76_iw_handler_get_retry(struct net_device *netdev, |
| 2685 | struct iw_request_info *info, |
| 2686 | struct iw_param *retry, char *extra) |
| 2687 | { |
| 2688 | struct at76_priv *priv = netdev_priv(netdev); |
| 2689 | |
| 2690 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRETRY", netdev->name); |
| 2691 | |
| 2692 | retry->disabled = 0; /* Can't be disabled */ |
| 2693 | retry->flags = IW_RETRY_LIMIT; |
| 2694 | retry->value = priv->short_retry_limit; |
| 2695 | |
| 2696 | return 0; |
| 2697 | } |
| 2698 | |
| 2699 | static int at76_iw_handler_set_encode(struct net_device *netdev, |
| 2700 | struct iw_request_info *info, |
| 2701 | struct iw_point *encoding, char *extra) |
| 2702 | { |
| 2703 | struct at76_priv *priv = netdev_priv(netdev); |
| 2704 | int index = (encoding->flags & IW_ENCODE_INDEX) - 1; |
| 2705 | int len = encoding->length; |
| 2706 | |
| 2707 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWENCODE - enc.flags %08x " |
| 2708 | "pointer %p len %d", netdev->name, encoding->flags, |
| 2709 | encoding->pointer, encoding->length); |
| 2710 | at76_dbg(DBG_IOCTL, |
| 2711 | "%s: SIOCSIWENCODE - old wepstate: enabled %s key_id %d " |
| 2712 | "auth_mode %s", netdev->name, |
| 2713 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id, |
| 2714 | (priv->auth_mode == |
| 2715 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); |
| 2716 | |
| 2717 | /* take the old default key if index is invalid */ |
| 2718 | if ((index < 0) || (index >= WEP_KEYS)) |
| 2719 | index = priv->wep_key_id; |
| 2720 | |
| 2721 | if (len > 0) { |
| 2722 | if (len > WEP_LARGE_KEY_LEN) |
| 2723 | len = WEP_LARGE_KEY_LEN; |
| 2724 | |
| 2725 | memset(priv->wep_keys[index], 0, WEP_KEY_LEN); |
| 2726 | memcpy(priv->wep_keys[index], extra, len); |
| 2727 | priv->wep_keys_len[index] = (len <= WEP_SMALL_KEY_LEN) ? |
| 2728 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; |
| 2729 | priv->wep_enabled = 1; |
| 2730 | } |
| 2731 | |
| 2732 | priv->wep_key_id = index; |
| 2733 | priv->wep_enabled = ((encoding->flags & IW_ENCODE_DISABLED) == 0); |
| 2734 | |
| 2735 | if (encoding->flags & IW_ENCODE_RESTRICTED) |
| 2736 | priv->auth_mode = WLAN_AUTH_SHARED_KEY; |
| 2737 | if (encoding->flags & IW_ENCODE_OPEN) |
| 2738 | priv->auth_mode = WLAN_AUTH_OPEN; |
| 2739 | |
| 2740 | at76_dbg(DBG_IOCTL, |
| 2741 | "%s: SIOCSIWENCODE - new wepstate: enabled %s key_id %d " |
| 2742 | "key_len %d auth_mode %s", netdev->name, |
| 2743 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, |
| 2744 | priv->wep_keys_len[priv->wep_key_id], |
| 2745 | (priv->auth_mode == |
| 2746 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); |
| 2747 | |
| 2748 | return -EIWCOMMIT; |
| 2749 | } |
| 2750 | |
| 2751 | static int at76_iw_handler_get_encode(struct net_device *netdev, |
| 2752 | struct iw_request_info *info, |
| 2753 | struct iw_point *encoding, char *extra) |
| 2754 | { |
| 2755 | struct at76_priv *priv = netdev_priv(netdev); |
| 2756 | int index = (encoding->flags & IW_ENCODE_INDEX) - 1; |
| 2757 | |
| 2758 | if ((index < 0) || (index >= WEP_KEYS)) |
| 2759 | index = priv->wep_key_id; |
| 2760 | |
| 2761 | encoding->flags = |
| 2762 | (priv->auth_mode == WLAN_AUTH_SHARED_KEY) ? |
| 2763 | IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN; |
| 2764 | |
| 2765 | if (!priv->wep_enabled) |
| 2766 | encoding->flags |= IW_ENCODE_DISABLED; |
| 2767 | |
| 2768 | if (encoding->pointer) { |
| 2769 | encoding->length = priv->wep_keys_len[index]; |
| 2770 | |
| 2771 | memcpy(extra, priv->wep_keys[index], priv->wep_keys_len[index]); |
| 2772 | |
| 2773 | encoding->flags |= (index + 1); |
| 2774 | } |
| 2775 | |
| 2776 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWENCODE - enc.flags %08x " |
| 2777 | "pointer %p len %d", netdev->name, encoding->flags, |
| 2778 | encoding->pointer, encoding->length); |
| 2779 | at76_dbg(DBG_IOCTL, |
| 2780 | "%s: SIOCGIWENCODE - wepstate: enabled %s key_id %d " |
| 2781 | "key_len %d auth_mode %s", netdev->name, |
| 2782 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, |
| 2783 | priv->wep_keys_len[priv->wep_key_id], |
| 2784 | (priv->auth_mode == |
| 2785 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); |
| 2786 | |
| 2787 | return 0; |
| 2788 | } |
| 2789 | |
| 2790 | static int at76_iw_handler_set_power(struct net_device *netdev, |
| 2791 | struct iw_request_info *info, |
| 2792 | struct iw_param *prq, char *extra) |
| 2793 | { |
| 2794 | int err = -EIWCOMMIT; |
| 2795 | struct at76_priv *priv = netdev_priv(netdev); |
| 2796 | |
| 2797 | at76_dbg(DBG_IOCTL, |
| 2798 | "%s: SIOCSIWPOWER - disabled %s flags 0x%x value 0x%x", |
| 2799 | netdev->name, (prq->disabled) ? "true" : "false", prq->flags, |
| 2800 | prq->value); |
| 2801 | |
| 2802 | if (prq->disabled) |
| 2803 | priv->pm_mode = AT76_PM_OFF; |
| 2804 | else { |
| 2805 | switch (prq->flags & IW_POWER_MODE) { |
| 2806 | case IW_POWER_ALL_R: |
| 2807 | case IW_POWER_ON: |
| 2808 | break; |
| 2809 | default: |
| 2810 | err = -EINVAL; |
| 2811 | goto exit; |
| 2812 | } |
| 2813 | if (prq->flags & IW_POWER_PERIOD) |
| 2814 | priv->pm_period = prq->value; |
| 2815 | |
| 2816 | if (prq->flags & IW_POWER_TIMEOUT) { |
| 2817 | err = -EINVAL; |
| 2818 | goto exit; |
| 2819 | } |
| 2820 | priv->pm_mode = AT76_PM_ON; |
| 2821 | } |
| 2822 | exit: |
| 2823 | return err; |
| 2824 | } |
| 2825 | |
| 2826 | static int at76_iw_handler_get_power(struct net_device *netdev, |
| 2827 | struct iw_request_info *info, |
| 2828 | struct iw_param *power, char *extra) |
| 2829 | { |
| 2830 | struct at76_priv *priv = netdev_priv(netdev); |
| 2831 | |
| 2832 | power->disabled = (priv->pm_mode == AT76_PM_OFF); |
| 2833 | if (!power->disabled) { |
| 2834 | power->flags = IW_POWER_PERIOD | IW_POWER_ALL_R; |
| 2835 | power->value = priv->pm_period; |
| 2836 | } |
| 2837 | |
| 2838 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWPOWER - %s flags 0x%x value 0x%x", |
| 2839 | netdev->name, power->disabled ? "disabled" : "enabled", |
| 2840 | power->flags, power->value); |
| 2841 | |
| 2842 | return 0; |
| 2843 | } |
| 2844 | |
| 2845 | /******************************************************************************* |
| 2846 | * Private IOCTLS |
| 2847 | */ |
| 2848 | static int at76_iw_set_short_preamble(struct net_device *netdev, |
| 2849 | struct iw_request_info *info, char *name, |
| 2850 | char *extra) |
| 2851 | { |
| 2852 | struct at76_priv *priv = netdev_priv(netdev); |
| 2853 | int val = *((int *)name); |
| 2854 | int ret = -EIWCOMMIT; |
| 2855 | |
| 2856 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SHORT_PREAMBLE, %d", |
| 2857 | netdev->name, val); |
| 2858 | |
| 2859 | if (val < PREAMBLE_TYPE_LONG || val > PREAMBLE_TYPE_AUTO) |
| 2860 | ret = -EINVAL; |
| 2861 | else |
| 2862 | priv->preamble_type = val; |
| 2863 | |
| 2864 | return ret; |
| 2865 | } |
| 2866 | |
| 2867 | static int at76_iw_get_short_preamble(struct net_device *netdev, |
| 2868 | struct iw_request_info *info, |
| 2869 | union iwreq_data *wrqu, char *extra) |
| 2870 | { |
| 2871 | struct at76_priv *priv = netdev_priv(netdev); |
| 2872 | |
| 2873 | snprintf(wrqu->name, sizeof(wrqu->name), "%s (%d)", |
| 2874 | preambles[priv->preamble_type], priv->preamble_type); |
| 2875 | return 0; |
| 2876 | } |
| 2877 | |
| 2878 | static int at76_iw_set_debug(struct net_device *netdev, |
| 2879 | struct iw_request_info *info, |
| 2880 | struct iw_point *data, char *extra) |
| 2881 | { |
| 2882 | char *ptr; |
| 2883 | u32 val; |
| 2884 | |
| 2885 | if (data->length > 0) { |
| 2886 | val = simple_strtol(extra, &ptr, 0); |
| 2887 | |
| 2888 | if (ptr == extra) |
| 2889 | val = DBG_DEFAULTS; |
| 2890 | |
| 2891 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG input %d: %s -> 0x%x", |
| 2892 | netdev->name, data->length, extra, val); |
| 2893 | } else |
| 2894 | val = DBG_DEFAULTS; |
| 2895 | |
| 2896 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG, old 0x%x, new 0x%x", |
| 2897 | netdev->name, at76_debug, val); |
| 2898 | |
| 2899 | /* jal: some more output to pin down lockups */ |
| 2900 | at76_dbg(DBG_IOCTL, "%s: netif running %d queue_stopped %d " |
| 2901 | "carrier_ok %d", netdev->name, netif_running(netdev), |
| 2902 | netif_queue_stopped(netdev), netif_carrier_ok(netdev)); |
| 2903 | |
| 2904 | at76_debug = val; |
| 2905 | |
| 2906 | return 0; |
| 2907 | } |
| 2908 | |
| 2909 | static int at76_iw_get_debug(struct net_device *netdev, |
| 2910 | struct iw_request_info *info, |
| 2911 | union iwreq_data *wrqu, char *extra) |
| 2912 | { |
| 2913 | snprintf(wrqu->name, sizeof(wrqu->name), "0x%08x", at76_debug); |
| 2914 | return 0; |
| 2915 | } |
| 2916 | |
| 2917 | static int at76_iw_set_powersave_mode(struct net_device *netdev, |
| 2918 | struct iw_request_info *info, char *name, |
| 2919 | char *extra) |
| 2920 | { |
| 2921 | struct at76_priv *priv = netdev_priv(netdev); |
| 2922 | int val = *((int *)name); |
| 2923 | int ret = -EIWCOMMIT; |
| 2924 | |
| 2925 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_POWERSAVE_MODE, %d (%s)", |
| 2926 | netdev->name, val, |
| 2927 | val == AT76_PM_OFF ? "active" : val == AT76_PM_ON ? "save" : |
| 2928 | val == AT76_PM_SMART ? "smart save" : "<invalid>"); |
| 2929 | if (val < AT76_PM_OFF || val > AT76_PM_SMART) |
| 2930 | ret = -EINVAL; |
| 2931 | else |
| 2932 | priv->pm_mode = val; |
| 2933 | |
| 2934 | return ret; |
| 2935 | } |
| 2936 | |
| 2937 | static int at76_iw_get_powersave_mode(struct net_device *netdev, |
| 2938 | struct iw_request_info *info, |
| 2939 | union iwreq_data *wrqu, char *extra) |
| 2940 | { |
| 2941 | struct at76_priv *priv = netdev_priv(netdev); |
| 2942 | int *param = (int *)extra; |
| 2943 | |
| 2944 | param[0] = priv->pm_mode; |
| 2945 | return 0; |
| 2946 | } |
| 2947 | |
| 2948 | static int at76_iw_set_scan_times(struct net_device *netdev, |
| 2949 | struct iw_request_info *info, char *name, |
| 2950 | char *extra) |
| 2951 | { |
| 2952 | struct at76_priv *priv = netdev_priv(netdev); |
| 2953 | int mint = *((int *)name); |
| 2954 | int maxt = *((int *)name + 1); |
| 2955 | int ret = -EIWCOMMIT; |
| 2956 | |
| 2957 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_TIMES - min %d max %d", |
| 2958 | netdev->name, mint, maxt); |
| 2959 | if (mint <= 0 || maxt <= 0 || mint > maxt) |
| 2960 | ret = -EINVAL; |
| 2961 | else { |
| 2962 | priv->scan_min_time = mint; |
| 2963 | priv->scan_max_time = maxt; |
| 2964 | } |
| 2965 | |
| 2966 | return ret; |
| 2967 | } |
| 2968 | |
| 2969 | static int at76_iw_get_scan_times(struct net_device *netdev, |
| 2970 | struct iw_request_info *info, |
| 2971 | union iwreq_data *wrqu, char *extra) |
| 2972 | { |
| 2973 | struct at76_priv *priv = netdev_priv(netdev); |
| 2974 | int *param = (int *)extra; |
| 2975 | |
| 2976 | param[0] = priv->scan_min_time; |
| 2977 | param[1] = priv->scan_max_time; |
| 2978 | return 0; |
| 2979 | } |
| 2980 | |
| 2981 | static int at76_iw_set_scan_mode(struct net_device *netdev, |
| 2982 | struct iw_request_info *info, char *name, |
| 2983 | char *extra) |
| 2984 | { |
| 2985 | struct at76_priv *priv = netdev_priv(netdev); |
| 2986 | int val = *((int *)name); |
| 2987 | int ret = -EIWCOMMIT; |
| 2988 | |
| 2989 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_MODE - mode %s", |
| 2990 | netdev->name, (val = SCAN_TYPE_ACTIVE) ? "active" : |
| 2991 | (val = SCAN_TYPE_PASSIVE) ? "passive" : "<invalid>"); |
| 2992 | |
| 2993 | if (val != SCAN_TYPE_ACTIVE && val != SCAN_TYPE_PASSIVE) |
| 2994 | ret = -EINVAL; |
| 2995 | else |
| 2996 | priv->scan_mode = val; |
| 2997 | |
| 2998 | return ret; |
| 2999 | } |
| 3000 | |
| 3001 | static int at76_iw_get_scan_mode(struct net_device *netdev, |
| 3002 | struct iw_request_info *info, |
| 3003 | union iwreq_data *wrqu, char *extra) |
| 3004 | { |
| 3005 | struct at76_priv *priv = netdev_priv(netdev); |
| 3006 | int *param = (int *)extra; |
| 3007 | |
| 3008 | param[0] = priv->scan_mode; |
| 3009 | return 0; |
| 3010 | } |
| 3011 | |
| 3012 | #define AT76_SET_HANDLER(h, f) [h - SIOCIWFIRST] = (iw_handler) f |
| 3013 | |
| 3014 | /* Standard wireless handlers */ |
| 3015 | static const iw_handler at76_handlers[] = { |
| 3016 | AT76_SET_HANDLER(SIOCSIWCOMMIT, at76_iw_handler_commit), |
| 3017 | AT76_SET_HANDLER(SIOCGIWNAME, at76_iw_handler_get_name), |
| 3018 | AT76_SET_HANDLER(SIOCSIWFREQ, at76_iw_handler_set_freq), |
| 3019 | AT76_SET_HANDLER(SIOCGIWFREQ, at76_iw_handler_get_freq), |
| 3020 | AT76_SET_HANDLER(SIOCSIWMODE, at76_iw_handler_set_mode), |
| 3021 | AT76_SET_HANDLER(SIOCGIWMODE, at76_iw_handler_get_mode), |
| 3022 | AT76_SET_HANDLER(SIOCGIWRANGE, at76_iw_handler_get_range), |
| 3023 | AT76_SET_HANDLER(SIOCSIWSPY, at76_iw_handler_set_spy), |
| 3024 | AT76_SET_HANDLER(SIOCGIWSPY, at76_iw_handler_get_spy), |
| 3025 | AT76_SET_HANDLER(SIOCSIWTHRSPY, at76_iw_handler_set_thrspy), |
| 3026 | AT76_SET_HANDLER(SIOCGIWTHRSPY, at76_iw_handler_get_thrspy), |
| 3027 | AT76_SET_HANDLER(SIOCSIWAP, at76_iw_handler_set_wap), |
| 3028 | AT76_SET_HANDLER(SIOCGIWAP, at76_iw_handler_get_wap), |
| 3029 | AT76_SET_HANDLER(SIOCSIWSCAN, at76_iw_handler_set_scan), |
| 3030 | AT76_SET_HANDLER(SIOCGIWSCAN, at76_iw_handler_get_scan), |
| 3031 | AT76_SET_HANDLER(SIOCSIWESSID, at76_iw_handler_set_essid), |
| 3032 | AT76_SET_HANDLER(SIOCGIWESSID, at76_iw_handler_get_essid), |
| 3033 | AT76_SET_HANDLER(SIOCSIWRATE, at76_iw_handler_set_rate), |
| 3034 | AT76_SET_HANDLER(SIOCGIWRATE, at76_iw_handler_get_rate), |
| 3035 | AT76_SET_HANDLER(SIOCSIWRTS, at76_iw_handler_set_rts), |
| 3036 | AT76_SET_HANDLER(SIOCGIWRTS, at76_iw_handler_get_rts), |
| 3037 | AT76_SET_HANDLER(SIOCSIWFRAG, at76_iw_handler_set_frag), |
| 3038 | AT76_SET_HANDLER(SIOCGIWFRAG, at76_iw_handler_get_frag), |
| 3039 | AT76_SET_HANDLER(SIOCGIWTXPOW, at76_iw_handler_get_txpow), |
| 3040 | AT76_SET_HANDLER(SIOCSIWRETRY, at76_iw_handler_set_retry), |
| 3041 | AT76_SET_HANDLER(SIOCGIWRETRY, at76_iw_handler_get_retry), |
| 3042 | AT76_SET_HANDLER(SIOCSIWENCODE, at76_iw_handler_set_encode), |
| 3043 | AT76_SET_HANDLER(SIOCGIWENCODE, at76_iw_handler_get_encode), |
| 3044 | AT76_SET_HANDLER(SIOCSIWPOWER, at76_iw_handler_set_power), |
| 3045 | AT76_SET_HANDLER(SIOCGIWPOWER, at76_iw_handler_get_power) |
| 3046 | }; |
| 3047 | |
| 3048 | #define AT76_SET_PRIV(h, f) [h - SIOCIWFIRSTPRIV] = (iw_handler) f |
| 3049 | |
| 3050 | /* Private wireless handlers */ |
| 3051 | static const iw_handler at76_priv_handlers[] = { |
| 3052 | AT76_SET_PRIV(AT76_SET_SHORT_PREAMBLE, at76_iw_set_short_preamble), |
| 3053 | AT76_SET_PRIV(AT76_GET_SHORT_PREAMBLE, at76_iw_get_short_preamble), |
| 3054 | AT76_SET_PRIV(AT76_SET_DEBUG, at76_iw_set_debug), |
| 3055 | AT76_SET_PRIV(AT76_GET_DEBUG, at76_iw_get_debug), |
| 3056 | AT76_SET_PRIV(AT76_SET_POWERSAVE_MODE, at76_iw_set_powersave_mode), |
| 3057 | AT76_SET_PRIV(AT76_GET_POWERSAVE_MODE, at76_iw_get_powersave_mode), |
| 3058 | AT76_SET_PRIV(AT76_SET_SCAN_TIMES, at76_iw_set_scan_times), |
| 3059 | AT76_SET_PRIV(AT76_GET_SCAN_TIMES, at76_iw_get_scan_times), |
| 3060 | AT76_SET_PRIV(AT76_SET_SCAN_MODE, at76_iw_set_scan_mode), |
| 3061 | AT76_SET_PRIV(AT76_GET_SCAN_MODE, at76_iw_get_scan_mode), |
| 3062 | }; |
| 3063 | |
| 3064 | /* Names and arguments of private wireless handlers */ |
| 3065 | static const struct iw_priv_args at76_priv_args[] = { |
| 3066 | /* 0 - long, 1 - short */ |
| 3067 | {AT76_SET_SHORT_PREAMBLE, |
| 3068 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"}, |
| 3069 | |
| 3070 | {AT76_GET_SHORT_PREAMBLE, |
| 3071 | 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_preamble"}, |
| 3072 | |
| 3073 | /* we must pass the new debug mask as a string, because iwpriv cannot |
| 3074 | * parse hex numbers starting with 0x :-( */ |
| 3075 | {AT76_SET_DEBUG, |
| 3076 | IW_PRIV_TYPE_CHAR | 10, 0, "set_debug"}, |
| 3077 | |
| 3078 | {AT76_GET_DEBUG, |
| 3079 | 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_debug"}, |
| 3080 | |
| 3081 | /* 1 - active, 2 - power save, 3 - smart power save */ |
| 3082 | {AT76_SET_POWERSAVE_MODE, |
| 3083 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_powersave"}, |
| 3084 | |
| 3085 | {AT76_GET_POWERSAVE_MODE, |
| 3086 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_powersave"}, |
| 3087 | |
| 3088 | /* min_channel_time, max_channel_time */ |
| 3089 | {AT76_SET_SCAN_TIMES, |
| 3090 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_scan_times"}, |
| 3091 | |
| 3092 | {AT76_GET_SCAN_TIMES, |
| 3093 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, "get_scan_times"}, |
| 3094 | |
| 3095 | /* 0 - active, 1 - passive scan */ |
| 3096 | {AT76_SET_SCAN_MODE, |
| 3097 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_scan_mode"}, |
| 3098 | |
| 3099 | {AT76_GET_SCAN_MODE, |
| 3100 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_scan_mode"}, |
| 3101 | }; |
| 3102 | |
| 3103 | static const struct iw_handler_def at76_handler_def = { |
| 3104 | .num_standard = ARRAY_SIZE(at76_handlers), |
| 3105 | .num_private = ARRAY_SIZE(at76_priv_handlers), |
| 3106 | .num_private_args = ARRAY_SIZE(at76_priv_args), |
| 3107 | .standard = at76_handlers, |
| 3108 | .private = at76_priv_handlers, |
| 3109 | .private_args = at76_priv_args, |
| 3110 | .get_wireless_stats = at76_get_wireless_stats, |
| 3111 | }; |
| 3112 | |
| 3113 | static const u8 snapsig[] = { 0xaa, 0xaa, 0x03 }; |
| 3114 | |
| 3115 | /* RFC 1042 encapsulates Ethernet frames in 802.2 SNAP (0xaa, 0xaa, 0x03) with |
| 3116 | * a SNAP OID of 0 (0x00, 0x00, 0x00) */ |
| 3117 | static const u8 rfc1042sig[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
| 3118 | |
| 3119 | static int at76_tx(struct sk_buff *skb, struct net_device *netdev) |
| 3120 | { |
| 3121 | struct at76_priv *priv = netdev_priv(netdev); |
| 3122 | struct net_device_stats *stats = &priv->stats; |
| 3123 | int ret = 0; |
| 3124 | int wlen; |
| 3125 | int submit_len; |
| 3126 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; |
| 3127 | struct ieee80211_hdr_3addr *i802_11_hdr = |
| 3128 | (struct ieee80211_hdr_3addr *)tx_buffer->packet; |
| 3129 | u8 *payload = i802_11_hdr->payload; |
| 3130 | struct ethhdr *eh = (struct ethhdr *)skb->data; |
| 3131 | |
| 3132 | if (netif_queue_stopped(netdev)) { |
| 3133 | printk(KERN_ERR "%s: %s called while netdev is stopped\n", |
| 3134 | netdev->name, __func__); |
| 3135 | /* skip this packet */ |
| 3136 | dev_kfree_skb(skb); |
| 3137 | return 0; |
| 3138 | } |
| 3139 | |
| 3140 | if (priv->tx_urb->status == -EINPROGRESS) { |
| 3141 | printk(KERN_ERR "%s: %s called while tx urb is pending\n", |
| 3142 | netdev->name, __func__); |
| 3143 | /* skip this packet */ |
| 3144 | dev_kfree_skb(skb); |
| 3145 | return 0; |
| 3146 | } |
| 3147 | |
| 3148 | if (skb->len < ETH_HLEN) { |
| 3149 | printk(KERN_ERR "%s: %s: skb too short (%d)\n", |
| 3150 | netdev->name, __func__, skb->len); |
| 3151 | dev_kfree_skb(skb); |
| 3152 | return 0; |
| 3153 | } |
| 3154 | |
| 3155 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ |
| 3156 | |
| 3157 | /* we can get rid of memcpy if we set netdev->hard_header_len to |
| 3158 | reserve enough space, but we would need to keep the skb around */ |
| 3159 | |
| 3160 | if (ntohs(eh->h_proto) <= ETH_DATA_LEN) { |
| 3161 | /* this is a 802.3 packet */ |
| 3162 | if (skb->len >= ETH_HLEN + sizeof(rfc1042sig) |
| 3163 | && skb->data[ETH_HLEN] == rfc1042sig[0] |
| 3164 | && skb->data[ETH_HLEN + 1] == rfc1042sig[1]) { |
| 3165 | /* higher layer delivered SNAP header - keep it */ |
| 3166 | memcpy(payload, skb->data + ETH_HLEN, |
| 3167 | skb->len - ETH_HLEN); |
| 3168 | wlen = IEEE80211_3ADDR_LEN + skb->len - ETH_HLEN; |
| 3169 | } else { |
| 3170 | printk(KERN_ERR "%s: dropping non-SNAP 802.2 packet " |
| 3171 | "(DSAP 0x%02x SSAP 0x%02x cntrl 0x%02x)\n", |
| 3172 | priv->netdev->name, skb->data[ETH_HLEN], |
| 3173 | skb->data[ETH_HLEN + 1], |
| 3174 | skb->data[ETH_HLEN + 2]); |
| 3175 | dev_kfree_skb(skb); |
| 3176 | return 0; |
| 3177 | } |
| 3178 | } else { |
| 3179 | /* add RFC 1042 header in front */ |
| 3180 | memcpy(payload, rfc1042sig, sizeof(rfc1042sig)); |
| 3181 | memcpy(payload + sizeof(rfc1042sig), &eh->h_proto, |
| 3182 | skb->len - offsetof(struct ethhdr, h_proto)); |
| 3183 | wlen = IEEE80211_3ADDR_LEN + sizeof(rfc1042sig) + skb->len - |
| 3184 | offsetof(struct ethhdr, h_proto); |
| 3185 | } |
| 3186 | |
| 3187 | /* make wireless header */ |
| 3188 | i802_11_hdr->frame_ctl = |
| 3189 | cpu_to_le16(IEEE80211_FTYPE_DATA | |
| 3190 | (priv->wep_enabled ? IEEE80211_FCTL_PROTECTED : 0) | |
| 3191 | (priv->iw_mode == |
| 3192 | IW_MODE_INFRA ? IEEE80211_FCTL_TODS : 0)); |
| 3193 | |
| 3194 | if (priv->iw_mode == IW_MODE_ADHOC) { |
| 3195 | memcpy(i802_11_hdr->addr1, eh->h_dest, ETH_ALEN); |
| 3196 | memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); |
| 3197 | memcpy(i802_11_hdr->addr3, priv->bssid, ETH_ALEN); |
| 3198 | } else if (priv->iw_mode == IW_MODE_INFRA) { |
| 3199 | memcpy(i802_11_hdr->addr1, priv->bssid, ETH_ALEN); |
| 3200 | memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); |
| 3201 | memcpy(i802_11_hdr->addr3, eh->h_dest, ETH_ALEN); |
| 3202 | } |
| 3203 | |
| 3204 | i802_11_hdr->duration_id = cpu_to_le16(0); |
| 3205 | i802_11_hdr->seq_ctl = cpu_to_le16(0); |
| 3206 | |
| 3207 | /* setup 'Atmel' header */ |
| 3208 | tx_buffer->wlength = cpu_to_le16(wlen); |
| 3209 | tx_buffer->tx_rate = priv->txrate; |
| 3210 | /* for broadcast destination addresses, the firmware 0.100.x |
| 3211 | seems to choose the highest rate set with CMD_STARTUP in |
| 3212 | basic_rate_set replacing this value */ |
| 3213 | |
| 3214 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); |
| 3215 | |
| 3216 | tx_buffer->padding = at76_calc_padding(wlen); |
| 3217 | submit_len = wlen + AT76_TX_HDRLEN + tx_buffer->padding; |
| 3218 | |
| 3219 | at76_dbg(DBG_TX_DATA_CONTENT, "%s skb->data %s", priv->netdev->name, |
| 3220 | hex2str(skb->data, 32)); |
| 3221 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr %s", |
| 3222 | priv->netdev->name, |
| 3223 | le16_to_cpu(tx_buffer->wlength), |
| 3224 | tx_buffer->padding, tx_buffer->tx_rate, |
| 3225 | hex2str(i802_11_hdr, sizeof(*i802_11_hdr))); |
| 3226 | at76_dbg(DBG_TX_DATA_CONTENT, "%s payload %s", priv->netdev->name, |
| 3227 | hex2str(payload, 48)); |
| 3228 | |
| 3229 | /* send stuff */ |
| 3230 | netif_stop_queue(netdev); |
| 3231 | netdev->trans_start = jiffies; |
| 3232 | |
| 3233 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, |
| 3234 | submit_len, at76_tx_callback, priv); |
| 3235 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); |
| 3236 | if (ret) { |
| 3237 | stats->tx_errors++; |
| 3238 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", |
| 3239 | netdev->name, ret); |
| 3240 | if (ret == -EINVAL) |
| 3241 | printk(KERN_ERR |
| 3242 | "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", |
| 3243 | priv->netdev->name, priv->tx_urb, |
| 3244 | priv->tx_urb->hcpriv, priv->tx_urb->complete); |
| 3245 | } else { |
| 3246 | stats->tx_bytes += skb->len; |
| 3247 | dev_kfree_skb(skb); |
| 3248 | } |
| 3249 | |
| 3250 | return ret; |
| 3251 | } |
| 3252 | |
| 3253 | static void at76_tx_timeout(struct net_device *netdev) |
| 3254 | { |
| 3255 | struct at76_priv *priv = netdev_priv(netdev); |
| 3256 | |
| 3257 | if (!priv) |
| 3258 | return; |
| 3259 | dev_warn(&netdev->dev, "tx timeout."); |
| 3260 | |
| 3261 | usb_unlink_urb(priv->tx_urb); |
| 3262 | priv->stats.tx_errors++; |
| 3263 | } |
| 3264 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3265 | static int at76_submit_rx_urb(struct at76_priv *priv) |
| 3266 | { |
| 3267 | int ret; |
| 3268 | int size; |
| 3269 | struct sk_buff *skb = priv->rx_skb; |
| 3270 | |
| 3271 | if (!priv->rx_urb) { |
| 3272 | printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3273 | priv->netdev->name, __func__); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3274 | return -EFAULT; |
| 3275 | } |
| 3276 | |
| 3277 | if (!skb) { |
| 3278 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); |
| 3279 | if (!skb) { |
| 3280 | printk(KERN_ERR "%s: cannot allocate rx skbuff\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3281 | priv->netdev->name); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3282 | ret = -ENOMEM; |
| 3283 | goto exit; |
| 3284 | } |
| 3285 | priv->rx_skb = skb; |
| 3286 | } else { |
| 3287 | skb_push(skb, skb_headroom(skb)); |
| 3288 | skb_trim(skb, 0); |
| 3289 | } |
| 3290 | |
| 3291 | size = skb_tailroom(skb); |
| 3292 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, |
| 3293 | skb_put(skb, size), size, at76_rx_callback, priv); |
| 3294 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); |
| 3295 | if (ret < 0) { |
| 3296 | if (ret == -ENODEV) |
| 3297 | at76_dbg(DBG_DEVSTART, |
| 3298 | "usb_submit_urb returned -ENODEV"); |
| 3299 | else |
| 3300 | printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3301 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3302 | } |
| 3303 | |
| 3304 | exit: |
| 3305 | if (ret < 0 && ret != -ENODEV) |
| 3306 | printk(KERN_ERR "%s: cannot submit rx urb - please unload the " |
| 3307 | "driver and/or power cycle the device\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3308 | priv->netdev->name); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3309 | |
| 3310 | return ret; |
| 3311 | } |
| 3312 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3313 | static int at76_open(struct net_device *netdev) |
| 3314 | { |
| 3315 | struct at76_priv *priv = netdev_priv(netdev); |
| 3316 | int ret = 0; |
| 3317 | |
| 3318 | at76_dbg(DBG_PROC_ENTRY, "%s(): entry", __func__); |
| 3319 | |
| 3320 | if (mutex_lock_interruptible(&priv->mtx)) |
| 3321 | return -EINTR; |
| 3322 | |
| 3323 | /* if netdev->dev_addr != priv->mac_addr we must |
| 3324 | set the mac address in the device ! */ |
| 3325 | if (compare_ether_addr(netdev->dev_addr, priv->mac_addr)) { |
| 3326 | if (at76_add_mac_address(priv, netdev->dev_addr) >= 0) |
| 3327 | at76_dbg(DBG_PROGRESS, "%s: set new MAC addr %s", |
| 3328 | netdev->name, mac2str(netdev->dev_addr)); |
| 3329 | } |
| 3330 | |
| 3331 | priv->scan_state = SCAN_IDLE; |
| 3332 | priv->last_scan = jiffies; |
| 3333 | |
| 3334 | ret = at76_submit_rx_urb(priv); |
| 3335 | if (ret < 0) { |
| 3336 | printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", |
| 3337 | netdev->name, ret); |
| 3338 | goto error; |
| 3339 | } |
| 3340 | |
| 3341 | schedule_delayed_work(&priv->dwork_restart, 0); |
| 3342 | |
| 3343 | at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__); |
| 3344 | error: |
| 3345 | mutex_unlock(&priv->mtx); |
| 3346 | return ret < 0 ? ret : 0; |
| 3347 | } |
| 3348 | |
| 3349 | static int at76_stop(struct net_device *netdev) |
| 3350 | { |
| 3351 | struct at76_priv *priv = netdev_priv(netdev); |
| 3352 | |
| 3353 | at76_dbg(DBG_DEVSTART, "%s: ENTER", __func__); |
| 3354 | |
| 3355 | if (mutex_lock_interruptible(&priv->mtx)) |
| 3356 | return -EINTR; |
| 3357 | |
| 3358 | at76_quiesce(priv); |
| 3359 | |
| 3360 | if (!priv->device_unplugged) { |
| 3361 | /* We are called by "ifconfig ethX down", not because the |
| 3362 | * device is not available anymore. */ |
| 3363 | at76_set_radio(priv, 0); |
| 3364 | |
| 3365 | /* We unlink rx_urb because at76_open() re-submits it. |
| 3366 | * If unplugged, at76_delete_device() takes care of it. */ |
| 3367 | usb_kill_urb(priv->rx_urb); |
| 3368 | } |
| 3369 | |
| 3370 | /* free the bss_list */ |
| 3371 | at76_free_bss_list(priv); |
| 3372 | |
| 3373 | mutex_unlock(&priv->mtx); |
| 3374 | at76_dbg(DBG_DEVSTART, "%s: EXIT", __func__); |
| 3375 | |
| 3376 | return 0; |
| 3377 | } |
| 3378 | |
| 3379 | static void at76_ethtool_get_drvinfo(struct net_device *netdev, |
| 3380 | struct ethtool_drvinfo *info) |
| 3381 | { |
| 3382 | struct at76_priv *priv = netdev_priv(netdev); |
| 3383 | |
| 3384 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
| 3385 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); |
| 3386 | |
| 3387 | usb_make_path(priv->udev, info->bus_info, sizeof(info->bus_info)); |
| 3388 | |
| 3389 | snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d-%d", |
| 3390 | priv->fw_version.major, priv->fw_version.minor, |
| 3391 | priv->fw_version.patch, priv->fw_version.build); |
| 3392 | } |
| 3393 | |
| 3394 | static u32 at76_ethtool_get_link(struct net_device *netdev) |
| 3395 | { |
| 3396 | struct at76_priv *priv = netdev_priv(netdev); |
| 3397 | return priv->mac_state == MAC_CONNECTED; |
| 3398 | } |
| 3399 | |
| 3400 | static struct ethtool_ops at76_ethtool_ops = { |
| 3401 | .get_drvinfo = at76_ethtool_get_drvinfo, |
| 3402 | .get_link = at76_ethtool_get_link, |
| 3403 | }; |
| 3404 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3405 | /* Download external firmware */ |
| 3406 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) |
| 3407 | { |
| 3408 | int ret; |
| 3409 | int op_mode; |
| 3410 | int blockno = 0; |
| 3411 | int bsize; |
| 3412 | u8 *block; |
| 3413 | u8 *buf = fwe->extfw; |
| 3414 | int size = fwe->extfw_size; |
| 3415 | |
| 3416 | if (!buf || !size) |
| 3417 | return -ENOENT; |
| 3418 | |
| 3419 | op_mode = at76_get_op_mode(udev); |
| 3420 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 3421 | |
| 3422 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
| 3423 | dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", |
| 3424 | op_mode); |
| 3425 | return -EINVAL; |
| 3426 | } |
| 3427 | |
| 3428 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 3429 | if (!block) |
| 3430 | return -ENOMEM; |
| 3431 | |
| 3432 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); |
| 3433 | |
| 3434 | /* for fw >= 0.100, the device needs an extra empty block */ |
| 3435 | do { |
| 3436 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 3437 | memcpy(block, buf, bsize); |
| 3438 | at76_dbg(DBG_DEVSTART, |
| 3439 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", |
| 3440 | size, bsize, blockno); |
| 3441 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); |
| 3442 | if (ret != bsize) { |
| 3443 | dev_printk(KERN_ERR, &udev->dev, |
| 3444 | "loading %dth firmware block failed: %d\n", |
| 3445 | blockno, ret); |
| 3446 | goto exit; |
| 3447 | } |
| 3448 | buf += bsize; |
| 3449 | size -= bsize; |
| 3450 | blockno++; |
| 3451 | } while (bsize > 0); |
| 3452 | |
| 3453 | if (at76_is_505a(fwe->board_type)) { |
| 3454 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); |
| 3455 | schedule_timeout_interruptible(HZ / 5 + 1); |
| 3456 | } |
| 3457 | |
| 3458 | exit: |
| 3459 | kfree(block); |
| 3460 | if (ret < 0) |
| 3461 | dev_printk(KERN_ERR, &udev->dev, |
| 3462 | "downloading external firmware failed: %d\n", ret); |
| 3463 | return ret; |
| 3464 | } |
| 3465 | |
| 3466 | /* Download internal firmware */ |
| 3467 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) |
| 3468 | { |
| 3469 | int ret; |
| 3470 | int need_remap = !at76_is_505a(fwe->board_type); |
| 3471 | |
| 3472 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, |
| 3473 | need_remap ? 0 : 2 * HZ); |
| 3474 | |
| 3475 | if (ret < 0) { |
| 3476 | dev_printk(KERN_ERR, &udev->dev, |
| 3477 | "downloading internal fw failed with %d\n", ret); |
| 3478 | goto exit; |
| 3479 | } |
| 3480 | |
| 3481 | at76_dbg(DBG_DEVSTART, "sending REMAP"); |
| 3482 | |
| 3483 | /* no REMAP for 505A (see SF driver) */ |
| 3484 | if (need_remap) { |
| 3485 | ret = at76_remap(udev); |
| 3486 | if (ret < 0) { |
| 3487 | dev_printk(KERN_ERR, &udev->dev, |
| 3488 | "sending REMAP failed with %d\n", ret); |
| 3489 | goto exit; |
| 3490 | } |
| 3491 | } |
| 3492 | |
| 3493 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); |
| 3494 | schedule_timeout_interruptible(2 * HZ + 1); |
| 3495 | usb_reset_device(udev); |
| 3496 | |
| 3497 | exit: |
| 3498 | return ret; |
| 3499 | } |
| 3500 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3501 | static int at76_match_essid(struct at76_priv *priv, struct bss_info *ptr) |
| 3502 | { |
| 3503 | /* common criteria for both modi */ |
| 3504 | |
| 3505 | int ret = (priv->essid_size == 0 /* ANY ssid */ || |
| 3506 | (priv->essid_size == ptr->ssid_len && |
| 3507 | !memcmp(priv->essid, ptr->ssid, ptr->ssid_len))); |
| 3508 | if (!ret) |
| 3509 | at76_dbg(DBG_BSS_MATCH, |
| 3510 | "%s bss table entry %p: essid didn't match", |
| 3511 | priv->netdev->name, ptr); |
| 3512 | return ret; |
| 3513 | } |
| 3514 | |
| 3515 | static inline int at76_match_mode(struct at76_priv *priv, struct bss_info *ptr) |
| 3516 | { |
| 3517 | int ret; |
| 3518 | |
| 3519 | if (priv->iw_mode == IW_MODE_ADHOC) |
| 3520 | ret = ptr->capa & WLAN_CAPABILITY_IBSS; |
| 3521 | else |
| 3522 | ret = ptr->capa & WLAN_CAPABILITY_ESS; |
| 3523 | if (!ret) |
| 3524 | at76_dbg(DBG_BSS_MATCH, |
| 3525 | "%s bss table entry %p: mode didn't match", |
| 3526 | priv->netdev->name, ptr); |
| 3527 | return ret; |
| 3528 | } |
| 3529 | |
| 3530 | static int at76_match_rates(struct at76_priv *priv, struct bss_info *ptr) |
| 3531 | { |
| 3532 | int i; |
| 3533 | |
| 3534 | for (i = 0; i < ptr->rates_len; i++) { |
| 3535 | u8 rate = ptr->rates[i]; |
| 3536 | |
| 3537 | if (!(rate & 0x80)) |
| 3538 | continue; |
| 3539 | |
| 3540 | /* this is a basic rate we have to support |
| 3541 | (see IEEE802.11, ch. 7.3.2.2) */ |
| 3542 | if (rate != (0x80 | hw_rates[0]) |
| 3543 | && rate != (0x80 | hw_rates[1]) |
| 3544 | && rate != (0x80 | hw_rates[2]) |
| 3545 | && rate != (0x80 | hw_rates[3])) { |
| 3546 | at76_dbg(DBG_BSS_MATCH, |
| 3547 | "%s: bss table entry %p: basic rate %02x not " |
| 3548 | "supported", priv->netdev->name, ptr, rate); |
| 3549 | return 0; |
| 3550 | } |
| 3551 | } |
| 3552 | |
| 3553 | /* if we use short preamble, the bss must support it */ |
| 3554 | if (priv->preamble_type == PREAMBLE_TYPE_SHORT && |
| 3555 | !(ptr->capa & WLAN_CAPABILITY_SHORT_PREAMBLE)) { |
| 3556 | at76_dbg(DBG_BSS_MATCH, |
| 3557 | "%s: %p does not support short preamble", |
| 3558 | priv->netdev->name, ptr); |
| 3559 | return 0; |
| 3560 | } else |
| 3561 | return 1; |
| 3562 | } |
| 3563 | |
| 3564 | static inline int at76_match_wep(struct at76_priv *priv, struct bss_info *ptr) |
| 3565 | { |
| 3566 | if (!priv->wep_enabled && ptr->capa & WLAN_CAPABILITY_PRIVACY) { |
| 3567 | /* we have disabled WEP, but the BSS signals privacy */ |
| 3568 | at76_dbg(DBG_BSS_MATCH, |
| 3569 | "%s: bss table entry %p: requires encryption", |
| 3570 | priv->netdev->name, ptr); |
| 3571 | return 0; |
| 3572 | } |
| 3573 | /* otherwise if the BSS does not signal privacy it may well |
| 3574 | accept encrypted packets from us ... */ |
| 3575 | return 1; |
| 3576 | } |
| 3577 | |
| 3578 | static inline int at76_match_bssid(struct at76_priv *priv, struct bss_info *ptr) |
| 3579 | { |
| 3580 | if (!priv->wanted_bssid_valid || |
| 3581 | !compare_ether_addr(ptr->bssid, priv->wanted_bssid)) |
| 3582 | return 1; |
| 3583 | |
| 3584 | at76_dbg(DBG_BSS_MATCH, |
| 3585 | "%s: requested bssid - %s does not match", |
| 3586 | priv->netdev->name, mac2str(priv->wanted_bssid)); |
| 3587 | at76_dbg(DBG_BSS_MATCH, |
| 3588 | " AP bssid - %s of bss table entry %p", |
| 3589 | mac2str(ptr->bssid), ptr); |
| 3590 | return 0; |
| 3591 | } |
| 3592 | |
| 3593 | /** |
| 3594 | * at76_match_bss - try to find a matching bss in priv->bss |
| 3595 | * |
| 3596 | * last - last bss tried |
| 3597 | * |
| 3598 | * last == NULL signals a new round starting with priv->bss_list.next |
| 3599 | * this function must be called inside an acquired priv->bss_list_spinlock |
| 3600 | * otherwise the timeout on bss may remove the newly chosen entry |
| 3601 | */ |
| 3602 | static struct bss_info *at76_match_bss(struct at76_priv *priv, |
| 3603 | struct bss_info *last) |
| 3604 | { |
| 3605 | struct bss_info *ptr = NULL; |
| 3606 | struct list_head *curr; |
| 3607 | |
| 3608 | curr = last ? last->list.next : priv->bss_list.next; |
| 3609 | while (curr != &priv->bss_list) { |
| 3610 | ptr = list_entry(curr, struct bss_info, list); |
| 3611 | if (at76_match_essid(priv, ptr) && at76_match_mode(priv, ptr) |
| 3612 | && at76_match_wep(priv, ptr) && at76_match_rates(priv, ptr) |
| 3613 | && at76_match_bssid(priv, ptr)) |
| 3614 | break; |
| 3615 | curr = curr->next; |
| 3616 | } |
| 3617 | |
| 3618 | if (curr == &priv->bss_list) |
| 3619 | ptr = NULL; |
| 3620 | /* otherwise ptr points to the struct bss_info we have chosen */ |
| 3621 | |
| 3622 | at76_dbg(DBG_BSS_TABLE, "%s %s: returned %p", priv->netdev->name, |
| 3623 | __func__, ptr); |
| 3624 | return ptr; |
| 3625 | } |
| 3626 | |
| 3627 | /* Start joining a matching BSS, or create own IBSS */ |
| 3628 | static void at76_work_join(struct work_struct *work) |
| 3629 | { |
| 3630 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3631 | work_join); |
| 3632 | int ret; |
| 3633 | unsigned long flags; |
| 3634 | |
| 3635 | mutex_lock(&priv->mtx); |
| 3636 | |
| 3637 | WARN_ON(priv->mac_state != MAC_JOINING); |
| 3638 | if (priv->mac_state != MAC_JOINING) |
| 3639 | goto exit; |
| 3640 | |
| 3641 | /* secure the access to priv->curr_bss ! */ |
| 3642 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 3643 | priv->curr_bss = at76_match_bss(priv, priv->curr_bss); |
| 3644 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 3645 | |
| 3646 | if (!priv->curr_bss) { |
| 3647 | /* here we haven't found a matching (i)bss ... */ |
| 3648 | if (priv->iw_mode == IW_MODE_ADHOC) { |
| 3649 | at76_set_mac_state(priv, MAC_OWN_IBSS); |
| 3650 | at76_start_ibss(priv); |
| 3651 | goto exit; |
| 3652 | } |
| 3653 | /* haven't found a matching BSS in infra mode - try again */ |
| 3654 | at76_set_mac_state(priv, MAC_SCANNING); |
| 3655 | schedule_work(&priv->work_start_scan); |
| 3656 | goto exit; |
| 3657 | } |
| 3658 | |
| 3659 | ret = at76_join_bss(priv, priv->curr_bss); |
| 3660 | if (ret < 0) { |
| 3661 | printk(KERN_ERR "%s: join_bss failed with %d\n", |
| 3662 | priv->netdev->name, ret); |
| 3663 | goto exit; |
| 3664 | } |
| 3665 | |
| 3666 | ret = at76_wait_completion(priv, CMD_JOIN); |
| 3667 | if (ret != CMD_STATUS_COMPLETE) { |
| 3668 | if (ret != CMD_STATUS_TIME_OUT) |
| 3669 | printk(KERN_ERR "%s: join_bss completed with %d\n", |
| 3670 | priv->netdev->name, ret); |
| 3671 | else |
| 3672 | printk(KERN_INFO "%s: join_bss ssid %s timed out\n", |
| 3673 | priv->netdev->name, |
| 3674 | mac2str(priv->curr_bss->bssid)); |
| 3675 | |
| 3676 | /* retry next BSS immediately */ |
| 3677 | schedule_work(&priv->work_join); |
| 3678 | goto exit; |
| 3679 | } |
| 3680 | |
| 3681 | /* here we have joined the (I)BSS */ |
| 3682 | if (priv->iw_mode == IW_MODE_ADHOC) { |
| 3683 | struct bss_info *bptr = priv->curr_bss; |
| 3684 | at76_set_mac_state(priv, MAC_CONNECTED); |
| 3685 | /* get ESSID, BSSID and channel for priv->curr_bss */ |
| 3686 | priv->essid_size = bptr->ssid_len; |
| 3687 | memcpy(priv->essid, bptr->ssid, bptr->ssid_len); |
| 3688 | memcpy(priv->bssid, bptr->bssid, ETH_ALEN); |
| 3689 | priv->channel = bptr->channel; |
| 3690 | at76_iwevent_bss_connect(priv->netdev, bptr->bssid); |
| 3691 | netif_carrier_on(priv->netdev); |
| 3692 | netif_start_queue(priv->netdev); |
| 3693 | /* just to be sure */ |
| 3694 | cancel_delayed_work(&priv->dwork_get_scan); |
| 3695 | cancel_delayed_work(&priv->dwork_auth); |
| 3696 | cancel_delayed_work(&priv->dwork_assoc); |
| 3697 | } else { |
| 3698 | /* send auth req */ |
| 3699 | priv->retries = AUTH_RETRIES; |
| 3700 | at76_set_mac_state(priv, MAC_AUTH); |
| 3701 | at76_auth_req(priv, priv->curr_bss, 1, NULL); |
| 3702 | at76_dbg(DBG_MGMT_TIMER, |
| 3703 | "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); |
| 3704 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); |
| 3705 | } |
| 3706 | |
| 3707 | exit: |
| 3708 | mutex_unlock(&priv->mtx); |
| 3709 | } |
| 3710 | |
| 3711 | /* Reap scan results */ |
| 3712 | static void at76_dwork_get_scan(struct work_struct *work) |
| 3713 | { |
| 3714 | int status; |
| 3715 | int ret; |
| 3716 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3717 | dwork_get_scan.work); |
| 3718 | |
| 3719 | mutex_lock(&priv->mtx); |
| 3720 | WARN_ON(priv->mac_state != MAC_SCANNING); |
| 3721 | if (priv->mac_state != MAC_SCANNING) |
| 3722 | goto exit; |
| 3723 | |
| 3724 | status = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 3725 | if (status < 0) { |
| 3726 | printk(KERN_ERR "%s: %s: at76_get_cmd_status failed with %d\n", |
| 3727 | priv->netdev->name, __func__, status); |
| 3728 | status = CMD_STATUS_IN_PROGRESS; |
| 3729 | /* INFO: Hope it was a one off error - if not, scanning |
| 3730 | further down the line and stop this cycle */ |
| 3731 | } |
| 3732 | at76_dbg(DBG_PROGRESS, |
| 3733 | "%s %s: got cmd_status %d (state %s, need_any %d)", |
| 3734 | priv->netdev->name, __func__, status, |
| 3735 | mac_states[priv->mac_state], priv->scan_need_any); |
| 3736 | |
| 3737 | if (status != CMD_STATUS_COMPLETE) { |
| 3738 | if ((status != CMD_STATUS_IN_PROGRESS) && |
| 3739 | (status != CMD_STATUS_IDLE)) |
| 3740 | printk(KERN_ERR "%s: %s: Bad scan status: %s\n", |
| 3741 | priv->netdev->name, __func__, |
| 3742 | at76_get_cmd_status_string(status)); |
| 3743 | |
| 3744 | /* the first cmd status after scan start is always a IDLE -> |
| 3745 | start the timer to poll again until COMPLETED */ |
| 3746 | at76_dbg(DBG_MGMT_TIMER, |
| 3747 | "%s:%d: starting mgmt_timer for %d ticks", |
| 3748 | __func__, __LINE__, SCAN_POLL_INTERVAL); |
| 3749 | schedule_delayed_work(&priv->dwork_get_scan, |
| 3750 | SCAN_POLL_INTERVAL); |
| 3751 | goto exit; |
| 3752 | } |
| 3753 | |
| 3754 | if (at76_debug & DBG_BSS_TABLE) |
| 3755 | at76_dump_bss_table(priv); |
| 3756 | |
| 3757 | if (priv->scan_need_any) { |
| 3758 | ret = at76_start_scan(priv, 0); |
| 3759 | if (ret < 0) |
| 3760 | printk(KERN_ERR |
| 3761 | "%s: %s: start_scan (ANY) failed with %d\n", |
| 3762 | priv->netdev->name, __func__, ret); |
| 3763 | at76_dbg(DBG_MGMT_TIMER, |
| 3764 | "%s:%d: starting mgmt_timer for %d ticks", __func__, |
| 3765 | __LINE__, SCAN_POLL_INTERVAL); |
| 3766 | schedule_delayed_work(&priv->dwork_get_scan, |
| 3767 | SCAN_POLL_INTERVAL); |
| 3768 | priv->scan_need_any = 0; |
| 3769 | } else { |
| 3770 | priv->scan_state = SCAN_COMPLETED; |
| 3771 | /* report the end of scan to user space */ |
| 3772 | at76_iwevent_scan_complete(priv->netdev); |
| 3773 | at76_set_mac_state(priv, MAC_JOINING); |
| 3774 | schedule_work(&priv->work_join); |
| 3775 | } |
| 3776 | |
| 3777 | exit: |
| 3778 | mutex_unlock(&priv->mtx); |
| 3779 | } |
| 3780 | |
| 3781 | /* Handle loss of beacons from the AP */ |
| 3782 | static void at76_dwork_beacon(struct work_struct *work) |
| 3783 | { |
| 3784 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3785 | dwork_beacon.work); |
| 3786 | |
| 3787 | mutex_lock(&priv->mtx); |
| 3788 | if (priv->mac_state != MAC_CONNECTED || priv->iw_mode != IW_MODE_INFRA) |
| 3789 | goto exit; |
| 3790 | |
| 3791 | /* We haven't received any beacons from out AP for BEACON_TIMEOUT */ |
| 3792 | printk(KERN_INFO "%s: lost beacon bssid %s\n", |
| 3793 | priv->netdev->name, mac2str(priv->curr_bss->bssid)); |
| 3794 | |
| 3795 | netif_carrier_off(priv->netdev); |
| 3796 | netif_stop_queue(priv->netdev); |
| 3797 | at76_iwevent_bss_disconnect(priv->netdev); |
| 3798 | at76_set_mac_state(priv, MAC_SCANNING); |
| 3799 | schedule_work(&priv->work_start_scan); |
| 3800 | |
| 3801 | exit: |
| 3802 | mutex_unlock(&priv->mtx); |
| 3803 | } |
| 3804 | |
| 3805 | /* Handle authentication response timeout */ |
| 3806 | static void at76_dwork_auth(struct work_struct *work) |
| 3807 | { |
| 3808 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3809 | dwork_auth.work); |
| 3810 | |
| 3811 | mutex_lock(&priv->mtx); |
| 3812 | WARN_ON(priv->mac_state != MAC_AUTH); |
| 3813 | if (priv->mac_state != MAC_AUTH) |
| 3814 | goto exit; |
| 3815 | |
| 3816 | at76_dbg(DBG_PROGRESS, "%s: authentication response timeout", |
| 3817 | priv->netdev->name); |
| 3818 | |
| 3819 | if (priv->retries-- >= 0) { |
| 3820 | at76_auth_req(priv, priv->curr_bss, 1, NULL); |
| 3821 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", |
| 3822 | __func__, __LINE__); |
| 3823 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); |
| 3824 | } else { |
| 3825 | /* try to get next matching BSS */ |
| 3826 | at76_set_mac_state(priv, MAC_JOINING); |
| 3827 | schedule_work(&priv->work_join); |
| 3828 | } |
| 3829 | |
| 3830 | exit: |
| 3831 | mutex_unlock(&priv->mtx); |
| 3832 | } |
| 3833 | |
| 3834 | /* Handle association response timeout */ |
| 3835 | static void at76_dwork_assoc(struct work_struct *work) |
| 3836 | { |
| 3837 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3838 | dwork_assoc.work); |
| 3839 | |
| 3840 | mutex_lock(&priv->mtx); |
| 3841 | WARN_ON(priv->mac_state != MAC_ASSOC); |
| 3842 | if (priv->mac_state != MAC_ASSOC) |
| 3843 | goto exit; |
| 3844 | |
| 3845 | at76_dbg(DBG_PROGRESS, "%s: association response timeout", |
| 3846 | priv->netdev->name); |
| 3847 | |
| 3848 | if (priv->retries-- >= 0) { |
| 3849 | at76_assoc_req(priv, priv->curr_bss); |
| 3850 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", |
| 3851 | __func__, __LINE__); |
| 3852 | schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); |
| 3853 | } else { |
| 3854 | /* try to get next matching BSS */ |
| 3855 | at76_set_mac_state(priv, MAC_JOINING); |
| 3856 | schedule_work(&priv->work_join); |
| 3857 | } |
| 3858 | |
| 3859 | exit: |
| 3860 | mutex_unlock(&priv->mtx); |
| 3861 | } |
| 3862 | |
| 3863 | /* Read new bssid in ad-hoc mode */ |
| 3864 | static void at76_work_new_bss(struct work_struct *work) |
| 3865 | { |
| 3866 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 3867 | work_new_bss); |
| 3868 | int ret; |
| 3869 | struct mib_mac_mgmt mac_mgmt; |
| 3870 | |
| 3871 | mutex_lock(&priv->mtx); |
| 3872 | |
| 3873 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, &mac_mgmt, |
| 3874 | sizeof(struct mib_mac_mgmt)); |
| 3875 | if (ret < 0) { |
| 3876 | printk(KERN_ERR "%s: at76_get_mib failed: %d\n", |
| 3877 | priv->netdev->name, ret); |
| 3878 | goto exit; |
| 3879 | } |
| 3880 | |
| 3881 | at76_dbg(DBG_PROGRESS, "ibss_change = 0x%2x", mac_mgmt.ibss_change); |
| 3882 | memcpy(priv->bssid, mac_mgmt.current_bssid, ETH_ALEN); |
| 3883 | at76_dbg(DBG_PROGRESS, "using BSSID %s", mac2str(priv->bssid)); |
| 3884 | |
| 3885 | at76_iwevent_bss_connect(priv->netdev, priv->bssid); |
| 3886 | |
| 3887 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 3888 | priv->mib_buf.size = 1; |
| 3889 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); |
| 3890 | priv->mib_buf.data.byte = 0; |
| 3891 | |
| 3892 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 3893 | if (ret < 0) |
| 3894 | printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", |
| 3895 | priv->netdev->name, ret); |
| 3896 | |
| 3897 | exit: |
| 3898 | mutex_unlock(&priv->mtx); |
| 3899 | } |
| 3900 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3901 | static int at76_startup_device(struct at76_priv *priv) |
| 3902 | { |
| 3903 | struct at76_card_config *ccfg = &priv->card_config; |
| 3904 | int ret; |
| 3905 | |
| 3906 | at76_dbg(DBG_PARAMS, |
| 3907 | "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3908 | "keylen %d", priv->netdev->name, priv->essid_size, priv->essid, |
| 3909 | hex2str(priv->essid, IW_ESSID_MAX_SIZE), |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3910 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", |
| 3911 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", |
| 3912 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); |
| 3913 | at76_dbg(DBG_PARAMS, |
| 3914 | "%s param: preamble %s rts %d retry %d frag %d " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3915 | "txrate %s auth_mode %d", priv->netdev->name, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3916 | preambles[priv->preamble_type], priv->rts_threshold, |
| 3917 | priv->short_retry_limit, priv->frag_threshold, |
| 3918 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == |
| 3919 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == |
| 3920 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == |
| 3921 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == |
| 3922 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); |
| 3923 | at76_dbg(DBG_PARAMS, |
| 3924 | "%s param: pm_mode %d pm_period %d auth_mode %s " |
| 3925 | "scan_times %d %d scan_mode %s", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3926 | priv->netdev->name, priv->pm_mode, priv->pm_period, |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3927 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", |
| 3928 | priv->scan_min_time, priv->scan_max_time, |
| 3929 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); |
| 3930 | |
| 3931 | memset(ccfg, 0, sizeof(struct at76_card_config)); |
| 3932 | ccfg->promiscuous_mode = 0; |
| 3933 | ccfg->short_retry_limit = priv->short_retry_limit; |
| 3934 | |
| 3935 | if (priv->wep_enabled) { |
| 3936 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) |
| 3937 | ccfg->encryption_type = 2; |
| 3938 | else |
| 3939 | ccfg->encryption_type = 1; |
| 3940 | |
| 3941 | /* jal: always exclude unencrypted if WEP is active */ |
| 3942 | ccfg->exclude_unencrypted = 1; |
| 3943 | } else { |
| 3944 | ccfg->exclude_unencrypted = 0; |
| 3945 | ccfg->encryption_type = 0; |
| 3946 | } |
| 3947 | |
| 3948 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); |
| 3949 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); |
| 3950 | |
| 3951 | memcpy(ccfg->basic_rate_set, hw_rates, 4); |
| 3952 | /* jal: really needed, we do a set_mib for autorate later ??? */ |
| 3953 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 3954 | ccfg->channel = priv->channel; |
| 3955 | ccfg->privacy_invoked = priv->wep_enabled; |
| 3956 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); |
| 3957 | ccfg->ssid_len = priv->essid_size; |
| 3958 | |
| 3959 | ccfg->wep_default_key_id = priv->wep_key_id; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3960 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, 4 * WEP_KEY_LEN); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3961 | |
| 3962 | ccfg->short_preamble = priv->preamble_type; |
| 3963 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); |
| 3964 | |
| 3965 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, |
| 3966 | sizeof(struct at76_card_config)); |
| 3967 | if (ret < 0) { |
| 3968 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 3969 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 3970 | return ret; |
| 3971 | } |
| 3972 | |
| 3973 | at76_wait_completion(priv, CMD_STARTUP); |
| 3974 | |
| 3975 | /* remove BSSID from previous run */ |
| 3976 | memset(priv->bssid, 0, ETH_ALEN); |
| 3977 | |
| 3978 | if (at76_set_radio(priv, 1) == 1) |
| 3979 | at76_wait_completion(priv, CMD_RADIO_ON); |
| 3980 | |
| 3981 | ret = at76_set_preamble(priv, priv->preamble_type); |
| 3982 | if (ret < 0) |
| 3983 | return ret; |
| 3984 | |
| 3985 | ret = at76_set_frag(priv, priv->frag_threshold); |
| 3986 | if (ret < 0) |
| 3987 | return ret; |
| 3988 | |
| 3989 | ret = at76_set_rts(priv, priv->rts_threshold); |
| 3990 | if (ret < 0) |
| 3991 | return ret; |
| 3992 | |
| 3993 | ret = at76_set_autorate_fallback(priv, |
| 3994 | priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 3995 | if (ret < 0) |
| 3996 | return ret; |
| 3997 | |
| 3998 | ret = at76_set_pm_mode(priv); |
| 3999 | if (ret < 0) |
| 4000 | return ret; |
| 4001 | |
| 4002 | if (at76_debug & DBG_MIB) { |
| 4003 | at76_dump_mib_mac(priv); |
| 4004 | at76_dump_mib_mac_addr(priv); |
| 4005 | at76_dump_mib_mac_mgmt(priv); |
| 4006 | at76_dump_mib_mac_wep(priv); |
| 4007 | at76_dump_mib_mdomain(priv); |
| 4008 | at76_dump_mib_phy(priv); |
| 4009 | at76_dump_mib_local(priv); |
| 4010 | } |
| 4011 | |
| 4012 | return 0; |
| 4013 | } |
| 4014 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4015 | /* Restart the interface */ |
| 4016 | static void at76_dwork_restart(struct work_struct *work) |
| 4017 | { |
| 4018 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 4019 | dwork_restart.work); |
| 4020 | |
| 4021 | mutex_lock(&priv->mtx); |
| 4022 | |
| 4023 | netif_carrier_off(priv->netdev); /* stop netdev watchdog */ |
| 4024 | netif_stop_queue(priv->netdev); /* stop tx data packets */ |
| 4025 | |
| 4026 | at76_startup_device(priv); |
| 4027 | |
| 4028 | if (priv->iw_mode != IW_MODE_MONITOR) { |
| 4029 | priv->netdev->type = ARPHRD_ETHER; |
| 4030 | at76_set_mac_state(priv, MAC_SCANNING); |
| 4031 | schedule_work(&priv->work_start_scan); |
| 4032 | } else { |
| 4033 | priv->netdev->type = ARPHRD_IEEE80211_RADIOTAP; |
| 4034 | at76_start_monitor(priv); |
| 4035 | } |
| 4036 | |
| 4037 | mutex_unlock(&priv->mtx); |
| 4038 | } |
| 4039 | |
| 4040 | /* Initiate scanning */ |
| 4041 | static void at76_work_start_scan(struct work_struct *work) |
| 4042 | { |
| 4043 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 4044 | work_start_scan); |
| 4045 | int ret; |
| 4046 | |
| 4047 | mutex_lock(&priv->mtx); |
| 4048 | |
| 4049 | WARN_ON(priv->mac_state != MAC_SCANNING); |
| 4050 | if (priv->mac_state != MAC_SCANNING) |
| 4051 | goto exit; |
| 4052 | |
| 4053 | /* only clear the bss list when a scan is actively initiated, |
| 4054 | * otherwise simply rely on at76_bss_list_timeout */ |
| 4055 | if (priv->scan_state == SCAN_IN_PROGRESS) { |
| 4056 | at76_free_bss_list(priv); |
| 4057 | priv->scan_need_any = 1; |
| 4058 | } else |
| 4059 | priv->scan_need_any = 0; |
| 4060 | |
| 4061 | ret = at76_start_scan(priv, 1); |
| 4062 | |
| 4063 | if (ret < 0) |
| 4064 | printk(KERN_ERR "%s: %s: start_scan failed with %d\n", |
| 4065 | priv->netdev->name, __func__, ret); |
| 4066 | else { |
| 4067 | at76_dbg(DBG_MGMT_TIMER, |
| 4068 | "%s:%d: starting mgmt_timer for %d ticks", |
| 4069 | __func__, __LINE__, SCAN_POLL_INTERVAL); |
| 4070 | schedule_delayed_work(&priv->dwork_get_scan, |
| 4071 | SCAN_POLL_INTERVAL); |
| 4072 | } |
| 4073 | |
| 4074 | exit: |
| 4075 | mutex_unlock(&priv->mtx); |
| 4076 | } |
| 4077 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 4078 | /* Enable or disable promiscuous mode */ |
| 4079 | static void at76_work_set_promisc(struct work_struct *work) |
| 4080 | { |
| 4081 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 4082 | work_set_promisc); |
| 4083 | int ret = 0; |
| 4084 | |
| 4085 | mutex_lock(&priv->mtx); |
| 4086 | |
| 4087 | priv->mib_buf.type = MIB_LOCAL; |
| 4088 | priv->mib_buf.size = 1; |
| 4089 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); |
| 4090 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; |
| 4091 | |
| 4092 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 4093 | if (ret < 0) |
| 4094 | printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4095 | priv->netdev->name, ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 4096 | |
| 4097 | mutex_unlock(&priv->mtx); |
| 4098 | } |
| 4099 | |
| 4100 | /* Submit Rx urb back to the device */ |
| 4101 | static void at76_work_submit_rx(struct work_struct *work) |
| 4102 | { |
| 4103 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 4104 | work_submit_rx); |
| 4105 | |
| 4106 | mutex_lock(&priv->mtx); |
| 4107 | at76_submit_rx_urb(priv); |
| 4108 | mutex_unlock(&priv->mtx); |
| 4109 | } |
| 4110 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4111 | /* We got an association response */ |
| 4112 | static void at76_rx_mgmt_assoc(struct at76_priv *priv, |
| 4113 | struct at76_rx_buffer *buf) |
| 4114 | { |
| 4115 | struct ieee80211_assoc_response *resp = |
| 4116 | (struct ieee80211_assoc_response *)buf->packet; |
| 4117 | u16 assoc_id = le16_to_cpu(resp->aid); |
| 4118 | u16 status = le16_to_cpu(resp->status); |
| 4119 | |
| 4120 | at76_dbg(DBG_RX_MGMT, "%s: rx AssocResp bssid %s capa 0x%04x status " |
| 4121 | "0x%04x assoc_id 0x%04x rates %s", priv->netdev->name, |
| 4122 | mac2str(resp->header.addr3), le16_to_cpu(resp->capability), |
| 4123 | status, assoc_id, hex2str(resp->info_element->data, |
| 4124 | resp->info_element->len)); |
| 4125 | |
| 4126 | if (priv->mac_state != MAC_ASSOC) { |
| 4127 | printk(KERN_INFO "%s: AssocResp in state %s ignored\n", |
| 4128 | priv->netdev->name, mac_states[priv->mac_state]); |
| 4129 | return; |
| 4130 | } |
| 4131 | |
| 4132 | BUG_ON(!priv->curr_bss); |
| 4133 | |
| 4134 | cancel_delayed_work(&priv->dwork_assoc); |
| 4135 | if (status == WLAN_STATUS_SUCCESS) { |
| 4136 | struct bss_info *ptr = priv->curr_bss; |
| 4137 | priv->assoc_id = assoc_id & 0x3fff; |
| 4138 | /* update iwconfig params */ |
| 4139 | memcpy(priv->bssid, ptr->bssid, ETH_ALEN); |
| 4140 | memcpy(priv->essid, ptr->ssid, ptr->ssid_len); |
| 4141 | priv->essid_size = ptr->ssid_len; |
| 4142 | priv->channel = ptr->channel; |
| 4143 | schedule_work(&priv->work_assoc_done); |
| 4144 | } else { |
| 4145 | at76_set_mac_state(priv, MAC_JOINING); |
| 4146 | schedule_work(&priv->work_join); |
| 4147 | } |
| 4148 | } |
| 4149 | |
| 4150 | /* Process disassociation request from the AP */ |
| 4151 | static void at76_rx_mgmt_disassoc(struct at76_priv *priv, |
| 4152 | struct at76_rx_buffer *buf) |
| 4153 | { |
| 4154 | struct ieee80211_disassoc *resp = |
| 4155 | (struct ieee80211_disassoc *)buf->packet; |
| 4156 | struct ieee80211_hdr_3addr *mgmt = &resp->header; |
| 4157 | |
| 4158 | at76_dbg(DBG_RX_MGMT, |
| 4159 | "%s: rx DisAssoc bssid %s reason 0x%04x destination %s", |
| 4160 | priv->netdev->name, mac2str(mgmt->addr3), |
| 4161 | le16_to_cpu(resp->reason), mac2str(mgmt->addr1)); |
| 4162 | |
| 4163 | /* We are not connected, ignore */ |
| 4164 | if (priv->mac_state == MAC_SCANNING || priv->mac_state == MAC_INIT |
| 4165 | || !priv->curr_bss) |
| 4166 | return; |
| 4167 | |
| 4168 | /* Not our BSSID, ignore */ |
| 4169 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) |
| 4170 | return; |
| 4171 | |
| 4172 | /* Not for our STA and not broadcast, ignore */ |
| 4173 | if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) |
| 4174 | && !is_broadcast_ether_addr(mgmt->addr1)) |
| 4175 | return; |
| 4176 | |
| 4177 | if (priv->mac_state != MAC_ASSOC && priv->mac_state != MAC_CONNECTED |
| 4178 | && priv->mac_state != MAC_JOINING) { |
| 4179 | printk(KERN_INFO "%s: DisAssoc in state %s ignored\n", |
| 4180 | priv->netdev->name, mac_states[priv->mac_state]); |
| 4181 | return; |
| 4182 | } |
| 4183 | |
| 4184 | if (priv->mac_state == MAC_CONNECTED) { |
| 4185 | netif_carrier_off(priv->netdev); |
| 4186 | netif_stop_queue(priv->netdev); |
| 4187 | at76_iwevent_bss_disconnect(priv->netdev); |
| 4188 | } |
| 4189 | cancel_delayed_work(&priv->dwork_get_scan); |
| 4190 | cancel_delayed_work(&priv->dwork_beacon); |
| 4191 | cancel_delayed_work(&priv->dwork_auth); |
| 4192 | cancel_delayed_work(&priv->dwork_assoc); |
| 4193 | at76_set_mac_state(priv, MAC_JOINING); |
| 4194 | schedule_work(&priv->work_join); |
| 4195 | } |
| 4196 | |
| 4197 | static void at76_rx_mgmt_auth(struct at76_priv *priv, |
| 4198 | struct at76_rx_buffer *buf) |
| 4199 | { |
| 4200 | struct ieee80211_auth *resp = (struct ieee80211_auth *)buf->packet; |
| 4201 | struct ieee80211_hdr_3addr *mgmt = &resp->header; |
| 4202 | int seq_nr = le16_to_cpu(resp->transaction); |
| 4203 | int alg = le16_to_cpu(resp->algorithm); |
| 4204 | int status = le16_to_cpu(resp->status); |
| 4205 | |
| 4206 | at76_dbg(DBG_RX_MGMT, |
| 4207 | "%s: rx AuthFrame bssid %s alg %d seq_nr %d status %d " |
| 4208 | "destination %s", priv->netdev->name, mac2str(mgmt->addr3), |
| 4209 | alg, seq_nr, status, mac2str(mgmt->addr1)); |
| 4210 | |
| 4211 | if (alg == WLAN_AUTH_SHARED_KEY && seq_nr == 2) |
| 4212 | at76_dbg(DBG_RX_MGMT, "%s: AuthFrame challenge %s ...", |
| 4213 | priv->netdev->name, hex2str(resp->info_element, 18)); |
| 4214 | |
| 4215 | if (priv->mac_state != MAC_AUTH) { |
| 4216 | printk(KERN_INFO "%s: ignored AuthFrame in state %s\n", |
| 4217 | priv->netdev->name, mac_states[priv->mac_state]); |
| 4218 | return; |
| 4219 | } |
| 4220 | if (priv->auth_mode != alg) { |
| 4221 | printk(KERN_INFO "%s: ignored AuthFrame for alg %d\n", |
| 4222 | priv->netdev->name, alg); |
| 4223 | return; |
| 4224 | } |
| 4225 | |
| 4226 | BUG_ON(!priv->curr_bss); |
| 4227 | |
| 4228 | /* Not our BSSID or not for our STA, ignore */ |
| 4229 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid) |
| 4230 | || compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1)) |
| 4231 | return; |
| 4232 | |
| 4233 | cancel_delayed_work(&priv->dwork_auth); |
| 4234 | if (status != WLAN_STATUS_SUCCESS) { |
| 4235 | /* try to join next bss */ |
| 4236 | at76_set_mac_state(priv, MAC_JOINING); |
| 4237 | schedule_work(&priv->work_join); |
| 4238 | return; |
| 4239 | } |
| 4240 | |
| 4241 | if (priv->auth_mode == WLAN_AUTH_OPEN || seq_nr == 4) { |
| 4242 | priv->retries = ASSOC_RETRIES; |
| 4243 | at76_set_mac_state(priv, MAC_ASSOC); |
| 4244 | at76_assoc_req(priv, priv->curr_bss); |
| 4245 | at76_dbg(DBG_MGMT_TIMER, |
| 4246 | "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); |
| 4247 | schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); |
| 4248 | return; |
| 4249 | } |
| 4250 | |
| 4251 | WARN_ON(seq_nr != 2); |
| 4252 | at76_auth_req(priv, priv->curr_bss, seq_nr + 1, resp->info_element); |
| 4253 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", __func__, |
| 4254 | __LINE__); |
| 4255 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); |
| 4256 | } |
| 4257 | |
| 4258 | static void at76_rx_mgmt_deauth(struct at76_priv *priv, |
| 4259 | struct at76_rx_buffer *buf) |
| 4260 | { |
| 4261 | struct ieee80211_disassoc *resp = |
| 4262 | (struct ieee80211_disassoc *)buf->packet; |
| 4263 | struct ieee80211_hdr_3addr *mgmt = &resp->header; |
| 4264 | |
| 4265 | at76_dbg(DBG_RX_MGMT | DBG_PROGRESS, |
| 4266 | "%s: rx DeAuth bssid %s reason 0x%04x destination %s", |
| 4267 | priv->netdev->name, mac2str(mgmt->addr3), |
| 4268 | le16_to_cpu(resp->reason), mac2str(mgmt->addr1)); |
| 4269 | |
| 4270 | if (priv->mac_state != MAC_AUTH && priv->mac_state != MAC_ASSOC |
| 4271 | && priv->mac_state != MAC_CONNECTED) { |
| 4272 | printk(KERN_INFO "%s: DeAuth in state %s ignored\n", |
| 4273 | priv->netdev->name, mac_states[priv->mac_state]); |
| 4274 | return; |
| 4275 | } |
| 4276 | |
| 4277 | BUG_ON(!priv->curr_bss); |
| 4278 | |
| 4279 | /* Not our BSSID, ignore */ |
| 4280 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) |
| 4281 | return; |
| 4282 | |
| 4283 | /* Not for our STA and not broadcast, ignore */ |
| 4284 | if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) |
| 4285 | && !is_broadcast_ether_addr(mgmt->addr1)) |
| 4286 | return; |
| 4287 | |
| 4288 | if (priv->mac_state == MAC_CONNECTED) |
| 4289 | at76_iwevent_bss_disconnect(priv->netdev); |
| 4290 | |
| 4291 | at76_set_mac_state(priv, MAC_JOINING); |
| 4292 | schedule_work(&priv->work_join); |
| 4293 | cancel_delayed_work(&priv->dwork_get_scan); |
| 4294 | cancel_delayed_work(&priv->dwork_beacon); |
| 4295 | cancel_delayed_work(&priv->dwork_auth); |
| 4296 | cancel_delayed_work(&priv->dwork_assoc); |
| 4297 | } |
| 4298 | |
| 4299 | static void at76_rx_mgmt_beacon(struct at76_priv *priv, |
| 4300 | struct at76_rx_buffer *buf) |
| 4301 | { |
| 4302 | int varpar_len; |
| 4303 | /* beacon content */ |
| 4304 | struct ieee80211_beacon *bdata = (struct ieee80211_beacon *)buf->packet; |
| 4305 | struct ieee80211_hdr_3addr *mgmt = &bdata->header; |
| 4306 | |
| 4307 | struct list_head *lptr; |
| 4308 | struct bss_info *match; /* entry matching addr3 with its bssid */ |
| 4309 | int new_entry = 0; |
| 4310 | int len; |
| 4311 | struct ieee80211_info_element *ie; |
| 4312 | int have_ssid = 0; |
| 4313 | int have_rates = 0; |
| 4314 | int have_channel = 0; |
| 4315 | int keep_going = 1; |
| 4316 | unsigned long flags; |
| 4317 | |
| 4318 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); |
| 4319 | if (priv->mac_state == MAC_CONNECTED) { |
| 4320 | /* in state MAC_CONNECTED we use the mgmt_timer to control |
| 4321 | the beacon of the BSS */ |
| 4322 | BUG_ON(!priv->curr_bss); |
| 4323 | |
| 4324 | if (!compare_ether_addr(priv->curr_bss->bssid, mgmt->addr3)) { |
| 4325 | /* We got our AP's beacon, defer the timeout handler. |
| 4326 | Kill pending work first, as schedule_delayed_work() |
| 4327 | won't do it. */ |
| 4328 | cancel_delayed_work(&priv->dwork_beacon); |
| 4329 | schedule_delayed_work(&priv->dwork_beacon, |
| 4330 | BEACON_TIMEOUT); |
| 4331 | priv->curr_bss->rssi = buf->rssi; |
| 4332 | priv->beacons_received++; |
| 4333 | goto exit; |
| 4334 | } |
| 4335 | } |
| 4336 | |
| 4337 | /* look if we have this BSS already in the list */ |
| 4338 | match = NULL; |
| 4339 | |
| 4340 | if (!list_empty(&priv->bss_list)) { |
| 4341 | list_for_each(lptr, &priv->bss_list) { |
| 4342 | struct bss_info *bss_ptr = |
| 4343 | list_entry(lptr, struct bss_info, list); |
| 4344 | if (!compare_ether_addr(bss_ptr->bssid, mgmt->addr3)) { |
| 4345 | match = bss_ptr; |
| 4346 | break; |
| 4347 | } |
| 4348 | } |
| 4349 | } |
| 4350 | |
| 4351 | if (!match) { |
| 4352 | /* BSS not in the list - append it */ |
| 4353 | match = kzalloc(sizeof(struct bss_info), GFP_ATOMIC); |
| 4354 | if (!match) { |
| 4355 | at76_dbg(DBG_BSS_TABLE, |
| 4356 | "%s: cannot kmalloc new bss info (%zd byte)", |
| 4357 | priv->netdev->name, sizeof(struct bss_info)); |
| 4358 | goto exit; |
| 4359 | } |
| 4360 | new_entry = 1; |
| 4361 | list_add_tail(&match->list, &priv->bss_list); |
| 4362 | } |
| 4363 | |
| 4364 | match->capa = le16_to_cpu(bdata->capability); |
| 4365 | match->beacon_interval = le16_to_cpu(bdata->beacon_interval); |
| 4366 | match->rssi = buf->rssi; |
| 4367 | match->link_qual = buf->link_quality; |
| 4368 | match->noise_level = buf->noise_level; |
| 4369 | memcpy(match->bssid, mgmt->addr3, ETH_ALEN); |
| 4370 | at76_dbg(DBG_RX_BEACON, "%s: bssid %s", priv->netdev->name, |
| 4371 | mac2str(match->bssid)); |
| 4372 | |
| 4373 | ie = bdata->info_element; |
| 4374 | |
| 4375 | /* length of var length beacon parameters */ |
| 4376 | varpar_len = min_t(int, le16_to_cpu(buf->wlength) - |
| 4377 | sizeof(struct ieee80211_beacon), |
| 4378 | BEACON_MAX_DATA_LENGTH); |
| 4379 | |
| 4380 | /* This routine steps through the bdata->data array to get |
| 4381 | * some useful information about the access point. |
| 4382 | * Currently, this implementation supports receipt of: SSID, |
| 4383 | * supported transfer rates and channel, in any order, with some |
| 4384 | * tolerance for intermittent unknown codes (although this |
| 4385 | * functionality may not be necessary as the useful information will |
| 4386 | * usually arrive in consecutively, but there have been some |
| 4387 | * reports of some of the useful information fields arriving in a |
| 4388 | * different order). |
| 4389 | * It does not support any more IE types although MFIE_TYPE_TIM may |
| 4390 | * be supported (on my AP at least). |
| 4391 | * The bdata->data array is about 1500 bytes long but only ~36 of those |
| 4392 | * bytes are useful, hence the have_ssid etc optimizations. */ |
| 4393 | |
| 4394 | while (keep_going && |
| 4395 | ((&ie->data[ie->len] - (u8 *)bdata->info_element) <= |
| 4396 | varpar_len)) { |
| 4397 | |
| 4398 | switch (ie->id) { |
| 4399 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 4400 | case WLAN_EID_SSID: |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4401 | if (have_ssid) |
| 4402 | break; |
| 4403 | |
| 4404 | len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); |
| 4405 | |
| 4406 | /* we copy only if this is a new entry, |
| 4407 | or the incoming SSID is not a hidden SSID. This |
| 4408 | will protect us from overwriting a real SSID read |
| 4409 | in a ProbeResponse with a hidden one from a |
| 4410 | following beacon. */ |
| 4411 | if (!new_entry && at76_is_hidden_ssid(ie->data, len)) { |
| 4412 | have_ssid = 1; |
| 4413 | break; |
| 4414 | } |
| 4415 | |
| 4416 | match->ssid_len = len; |
| 4417 | memcpy(match->ssid, ie->data, len); |
| 4418 | at76_dbg(DBG_RX_BEACON, "%s: SSID - %.*s", |
| 4419 | priv->netdev->name, len, match->ssid); |
| 4420 | have_ssid = 1; |
| 4421 | break; |
| 4422 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 4423 | case WLAN_EID_SUPP_RATES: |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4424 | if (have_rates) |
| 4425 | break; |
| 4426 | |
| 4427 | match->rates_len = |
| 4428 | min_t(int, sizeof(match->rates), ie->len); |
| 4429 | memcpy(match->rates, ie->data, match->rates_len); |
| 4430 | have_rates = 1; |
| 4431 | at76_dbg(DBG_RX_BEACON, "%s: SUPPORTED RATES %s", |
| 4432 | priv->netdev->name, |
| 4433 | hex2str(ie->data, ie->len)); |
| 4434 | break; |
| 4435 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 4436 | case WLAN_EID_DS_PARAMS: |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4437 | if (have_channel) |
| 4438 | break; |
| 4439 | |
| 4440 | match->channel = ie->data[0]; |
| 4441 | have_channel = 1; |
| 4442 | at76_dbg(DBG_RX_BEACON, "%s: CHANNEL - %d", |
| 4443 | priv->netdev->name, match->channel); |
| 4444 | break; |
| 4445 | |
Kalle Valo | f494b66 | 2009-02-22 14:04:34 +0200 | [diff] [blame] | 4446 | case WLAN_EID_CF_PARAMS: |
| 4447 | case WLAN_EID_TIM: |
| 4448 | case WLAN_EID_IBSS_PARAMS: |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4449 | default: |
| 4450 | at76_dbg(DBG_RX_BEACON, "%s: beacon IE id %d len %d %s", |
| 4451 | priv->netdev->name, ie->id, ie->len, |
| 4452 | hex2str(ie->data, ie->len)); |
| 4453 | break; |
| 4454 | } |
| 4455 | |
| 4456 | /* advance to the next informational element */ |
| 4457 | next_ie(&ie); |
| 4458 | |
| 4459 | /* Optimization: after all, the bdata->data array is |
| 4460 | * varpar_len bytes long, whereas we get all of the useful |
| 4461 | * information after only ~36 bytes, this saves us a lot of |
| 4462 | * time (and trouble as the remaining portion of the array |
| 4463 | * could be full of junk) |
| 4464 | * Comment this out if you want to see what other information |
| 4465 | * comes from the AP - although little of it may be useful */ |
| 4466 | } |
| 4467 | |
| 4468 | at76_dbg(DBG_RX_BEACON, "%s: Finished processing beacon data", |
| 4469 | priv->netdev->name); |
| 4470 | |
| 4471 | match->last_rx = jiffies; /* record last rx of beacon */ |
| 4472 | |
| 4473 | exit: |
| 4474 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); |
| 4475 | } |
| 4476 | |
| 4477 | /* Calculate the link level from a given rx_buffer */ |
| 4478 | static void at76_calc_level(struct at76_priv *priv, struct at76_rx_buffer *buf, |
| 4479 | struct iw_quality *qual) |
| 4480 | { |
| 4481 | /* just a guess for now, might be different for other chips */ |
| 4482 | int max_rssi = 42; |
| 4483 | |
| 4484 | qual->level = (buf->rssi * 100 / max_rssi); |
| 4485 | if (qual->level > 100) |
| 4486 | qual->level = 100; |
| 4487 | qual->updated |= IW_QUAL_LEVEL_UPDATED; |
| 4488 | } |
| 4489 | |
| 4490 | /* Calculate the link quality from a given rx_buffer */ |
| 4491 | static void at76_calc_qual(struct at76_priv *priv, struct at76_rx_buffer *buf, |
| 4492 | struct iw_quality *qual) |
| 4493 | { |
| 4494 | if (at76_is_intersil(priv->board_type)) |
| 4495 | qual->qual = buf->link_quality; |
| 4496 | else { |
| 4497 | unsigned long elapsed; |
| 4498 | |
| 4499 | /* Update qual at most once a second */ |
| 4500 | elapsed = jiffies - priv->beacons_last_qual; |
| 4501 | if (elapsed < 1 * HZ) |
| 4502 | return; |
| 4503 | |
| 4504 | qual->qual = qual->level * priv->beacons_received * |
| 4505 | msecs_to_jiffies(priv->beacon_period) / elapsed; |
| 4506 | |
| 4507 | priv->beacons_last_qual = jiffies; |
| 4508 | priv->beacons_received = 0; |
| 4509 | } |
| 4510 | qual->qual = (qual->qual > 100) ? 100 : qual->qual; |
| 4511 | qual->updated |= IW_QUAL_QUAL_UPDATED; |
| 4512 | } |
| 4513 | |
| 4514 | /* Calculate the noise quality from a given rx_buffer */ |
| 4515 | static void at76_calc_noise(struct at76_priv *priv, struct at76_rx_buffer *buf, |
| 4516 | struct iw_quality *qual) |
| 4517 | { |
| 4518 | qual->noise = 0; |
| 4519 | qual->updated |= IW_QUAL_NOISE_INVALID; |
| 4520 | } |
| 4521 | |
| 4522 | static void at76_update_wstats(struct at76_priv *priv, |
| 4523 | struct at76_rx_buffer *buf) |
| 4524 | { |
| 4525 | struct iw_quality *qual = &priv->wstats.qual; |
| 4526 | |
| 4527 | if (buf->rssi && priv->mac_state == MAC_CONNECTED) { |
| 4528 | qual->updated = 0; |
| 4529 | at76_calc_level(priv, buf, qual); |
| 4530 | at76_calc_qual(priv, buf, qual); |
| 4531 | at76_calc_noise(priv, buf, qual); |
| 4532 | } else { |
| 4533 | qual->qual = 0; |
| 4534 | qual->level = 0; |
| 4535 | qual->noise = 0; |
| 4536 | qual->updated = IW_QUAL_ALL_INVALID; |
| 4537 | } |
| 4538 | } |
| 4539 | |
| 4540 | static void at76_rx_mgmt(struct at76_priv *priv, struct at76_rx_buffer *buf) |
| 4541 | { |
| 4542 | struct ieee80211_hdr_3addr *mgmt = |
| 4543 | (struct ieee80211_hdr_3addr *)buf->packet; |
| 4544 | u16 framectl = le16_to_cpu(mgmt->frame_ctl); |
| 4545 | |
| 4546 | /* update wstats */ |
| 4547 | if (priv->mac_state != MAC_INIT && priv->mac_state != MAC_SCANNING) { |
| 4548 | /* jal: this is a dirty hack needed by Tim in ad-hoc mode */ |
| 4549 | /* Data packets always seem to have a 0 link level, so we |
| 4550 | only read link quality info from management packets. |
| 4551 | Atmel driver actually averages the present, and previous |
| 4552 | values, we just present the raw value at the moment - TJS */ |
| 4553 | if (priv->iw_mode == IW_MODE_ADHOC |
| 4554 | || (priv->curr_bss |
| 4555 | && !compare_ether_addr(mgmt->addr3, |
| 4556 | priv->curr_bss->bssid))) |
| 4557 | at76_update_wstats(priv, buf); |
| 4558 | } |
| 4559 | |
| 4560 | at76_dbg(DBG_RX_MGMT_CONTENT, "%s rx mgmt framectl 0x%x %s", |
| 4561 | priv->netdev->name, framectl, |
| 4562 | hex2str(mgmt, le16_to_cpu(buf->wlength))); |
| 4563 | |
| 4564 | switch (framectl & IEEE80211_FCTL_STYPE) { |
| 4565 | case IEEE80211_STYPE_BEACON: |
| 4566 | case IEEE80211_STYPE_PROBE_RESP: |
| 4567 | at76_rx_mgmt_beacon(priv, buf); |
| 4568 | break; |
| 4569 | |
| 4570 | case IEEE80211_STYPE_ASSOC_RESP: |
| 4571 | at76_rx_mgmt_assoc(priv, buf); |
| 4572 | break; |
| 4573 | |
| 4574 | case IEEE80211_STYPE_DISASSOC: |
| 4575 | at76_rx_mgmt_disassoc(priv, buf); |
| 4576 | break; |
| 4577 | |
| 4578 | case IEEE80211_STYPE_AUTH: |
| 4579 | at76_rx_mgmt_auth(priv, buf); |
| 4580 | break; |
| 4581 | |
| 4582 | case IEEE80211_STYPE_DEAUTH: |
| 4583 | at76_rx_mgmt_deauth(priv, buf); |
| 4584 | break; |
| 4585 | |
| 4586 | default: |
| 4587 | printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", |
| 4588 | priv->netdev->name, framectl); |
| 4589 | } |
| 4590 | |
| 4591 | return; |
| 4592 | } |
| 4593 | |
| 4594 | /* Convert the 802.11 header into an ethernet-style header, make skb |
| 4595 | * ready for consumption by netif_rx() */ |
| 4596 | static void at76_ieee80211_to_eth(struct sk_buff *skb, int iw_mode) |
| 4597 | { |
| 4598 | struct ieee80211_hdr_3addr *i802_11_hdr; |
| 4599 | struct ethhdr *eth_hdr_p; |
| 4600 | u8 *src_addr; |
| 4601 | u8 *dest_addr; |
| 4602 | |
| 4603 | i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; |
| 4604 | |
| 4605 | /* That would be the ethernet header if the hardware converted |
| 4606 | * the frame for us. Make sure the source and the destination |
| 4607 | * match the 802.11 header. Which hardware does it? */ |
| 4608 | eth_hdr_p = (struct ethhdr *)skb_pull(skb, IEEE80211_3ADDR_LEN); |
| 4609 | |
| 4610 | dest_addr = i802_11_hdr->addr1; |
| 4611 | if (iw_mode == IW_MODE_ADHOC) |
| 4612 | src_addr = i802_11_hdr->addr2; |
| 4613 | else |
| 4614 | src_addr = i802_11_hdr->addr3; |
| 4615 | |
| 4616 | if (!compare_ether_addr(eth_hdr_p->h_source, src_addr) && |
| 4617 | !compare_ether_addr(eth_hdr_p->h_dest, dest_addr)) |
| 4618 | /* Yes, we already have an ethernet header */ |
| 4619 | skb_reset_mac_header(skb); |
| 4620 | else { |
| 4621 | u16 len; |
| 4622 | |
| 4623 | /* Need to build an ethernet header */ |
| 4624 | if (!memcmp(skb->data, snapsig, sizeof(snapsig))) { |
| 4625 | /* SNAP frame - decapsulate, keep proto */ |
| 4626 | skb_push(skb, offsetof(struct ethhdr, h_proto) - |
| 4627 | sizeof(rfc1042sig)); |
| 4628 | len = 0; |
| 4629 | } else { |
| 4630 | /* 802.3 frame, proto is length */ |
| 4631 | len = skb->len; |
| 4632 | skb_push(skb, ETH_HLEN); |
| 4633 | } |
| 4634 | |
| 4635 | skb_reset_mac_header(skb); |
| 4636 | eth_hdr_p = eth_hdr(skb); |
| 4637 | /* This needs to be done in this order (eth_hdr_p->h_dest may |
| 4638 | * overlap src_addr) */ |
| 4639 | memcpy(eth_hdr_p->h_source, src_addr, ETH_ALEN); |
| 4640 | memcpy(eth_hdr_p->h_dest, dest_addr, ETH_ALEN); |
| 4641 | if (len) |
| 4642 | eth_hdr_p->h_proto = htons(len); |
| 4643 | } |
| 4644 | |
| 4645 | skb->protocol = eth_type_trans(skb, skb->dev); |
| 4646 | } |
| 4647 | |
| 4648 | /* Check for fragmented data in priv->rx_skb. If the packet was no fragment |
| 4649 | or it was the last of a fragment set a skb containing the whole packet |
| 4650 | is returned for further processing. Otherwise we get NULL and are |
| 4651 | done and the packet is either stored inside the fragment buffer |
| 4652 | or thrown away. Every returned skb starts with the ieee802_11 header |
| 4653 | and contains _no_ FCS at the end */ |
| 4654 | static struct sk_buff *at76_check_for_rx_frags(struct at76_priv *priv) |
| 4655 | { |
| 4656 | struct sk_buff *skb = priv->rx_skb; |
| 4657 | struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; |
| 4658 | struct ieee80211_hdr_3addr *i802_11_hdr = |
| 4659 | (struct ieee80211_hdr_3addr *)buf->packet; |
| 4660 | /* seq_ctrl, fragment_number, sequence number of new packet */ |
| 4661 | u16 sctl = le16_to_cpu(i802_11_hdr->seq_ctl); |
| 4662 | u16 fragnr = sctl & 0xf; |
| 4663 | u16 seqnr = sctl >> 4; |
| 4664 | u16 frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); |
| 4665 | |
| 4666 | /* Length including the IEEE802.11 header, but without the trailing |
| 4667 | * FCS and without the Atmel Rx header */ |
| 4668 | int length = le16_to_cpu(buf->wlength) - IEEE80211_FCS_LEN; |
| 4669 | |
| 4670 | /* where does the data payload start in skb->data ? */ |
| 4671 | u8 *data = i802_11_hdr->payload; |
| 4672 | |
| 4673 | /* length of payload, excl. the trailing FCS */ |
| 4674 | int data_len = length - IEEE80211_3ADDR_LEN; |
| 4675 | |
| 4676 | int i; |
| 4677 | struct rx_data_buf *bptr, *optr; |
| 4678 | unsigned long oldest = ~0UL; |
| 4679 | |
| 4680 | at76_dbg(DBG_RX_FRAGS, |
| 4681 | "%s: rx data frame_ctl %04x addr2 %s seq/frag %d/%d " |
| 4682 | "length %d data %d: %s ...", priv->netdev->name, frame_ctl, |
| 4683 | mac2str(i802_11_hdr->addr2), seqnr, fragnr, length, data_len, |
| 4684 | hex2str(data, 32)); |
| 4685 | |
| 4686 | at76_dbg(DBG_RX_FRAGS_SKB, "%s: incoming skb: head %p data %p " |
| 4687 | "tail %p end %p len %d", priv->netdev->name, skb->head, |
| 4688 | skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), |
| 4689 | skb->len); |
| 4690 | |
| 4691 | if (data_len < 0) { |
| 4692 | /* make sure data starts in the buffer */ |
| 4693 | printk(KERN_INFO "%s: data frame too short\n", |
| 4694 | priv->netdev->name); |
| 4695 | return NULL; |
| 4696 | } |
| 4697 | |
| 4698 | WARN_ON(length <= AT76_RX_HDRLEN); |
| 4699 | if (length <= AT76_RX_HDRLEN) |
| 4700 | return NULL; |
| 4701 | |
| 4702 | /* remove the at76_rx_buffer header - we don't need it anymore */ |
| 4703 | /* we need the IEEE802.11 header (for the addresses) if this packet |
| 4704 | is the first of a chain */ |
| 4705 | skb_pull(skb, AT76_RX_HDRLEN); |
| 4706 | |
| 4707 | /* remove FCS at end */ |
| 4708 | skb_trim(skb, length); |
| 4709 | |
| 4710 | at76_dbg(DBG_RX_FRAGS_SKB, "%s: trimmed skb: head %p data %p tail %p " |
| 4711 | "end %p len %d data %p data_len %d", priv->netdev->name, |
| 4712 | skb->head, skb->data, skb_tail_pointer(skb), |
| 4713 | skb_end_pointer(skb), skb->len, data, data_len); |
| 4714 | |
| 4715 | if (fragnr == 0 && !(frame_ctl & IEEE80211_FCTL_MOREFRAGS)) { |
| 4716 | /* unfragmented packet received */ |
| 4717 | /* Use a new skb for the next receive */ |
| 4718 | priv->rx_skb = NULL; |
| 4719 | at76_dbg(DBG_RX_FRAGS, "%s: unfragmented", priv->netdev->name); |
| 4720 | return skb; |
| 4721 | } |
| 4722 | |
| 4723 | /* look if we've got a chain for the sender address. |
| 4724 | afterwards optr points to first free or the oldest entry, |
| 4725 | or, if i < NR_RX_DATA_BUF, bptr points to the entry for the |
| 4726 | sender address */ |
| 4727 | /* determining the oldest entry doesn't cope with jiffies wrapping |
| 4728 | but I don't care to delete a young entry at these rare moments ... */ |
| 4729 | |
| 4730 | bptr = priv->rx_data; |
| 4731 | optr = NULL; |
| 4732 | for (i = 0; i < NR_RX_DATA_BUF; i++, bptr++) { |
| 4733 | if (!bptr->skb) { |
| 4734 | optr = bptr; |
| 4735 | oldest = 0UL; |
| 4736 | continue; |
| 4737 | } |
| 4738 | |
| 4739 | if (!compare_ether_addr(i802_11_hdr->addr2, bptr->sender)) |
| 4740 | break; |
| 4741 | |
| 4742 | if (!optr) { |
| 4743 | optr = bptr; |
| 4744 | oldest = bptr->last_rx; |
| 4745 | } else if (bptr->last_rx < oldest) |
| 4746 | optr = bptr; |
| 4747 | } |
| 4748 | |
| 4749 | if (i < NR_RX_DATA_BUF) { |
| 4750 | |
| 4751 | at76_dbg(DBG_RX_FRAGS, "%s: %d. cacheentry (seq/frag = %d/%d) " |
| 4752 | "matched sender addr", |
| 4753 | priv->netdev->name, i, bptr->seqnr, bptr->fragnr); |
| 4754 | |
| 4755 | /* bptr points to an entry for the sender address */ |
| 4756 | if (bptr->seqnr == seqnr) { |
| 4757 | int left; |
| 4758 | /* the fragment has the current sequence number */ |
| 4759 | if (((bptr->fragnr + 1) & 0xf) != fragnr) { |
| 4760 | /* wrong fragment number -> ignore it */ |
| 4761 | /* is & 0xf necessary above ??? */ |
| 4762 | at76_dbg(DBG_RX_FRAGS, |
| 4763 | "%s: frag nr mismatch: %d + 1 != %d", |
| 4764 | priv->netdev->name, bptr->fragnr, |
| 4765 | fragnr); |
| 4766 | return NULL; |
| 4767 | } |
| 4768 | bptr->last_rx = jiffies; |
| 4769 | /* the next following fragment number -> |
| 4770 | add the data at the end */ |
| 4771 | |
| 4772 | /* for test only ??? */ |
| 4773 | left = skb_tailroom(bptr->skb); |
| 4774 | if (left < data_len) |
| 4775 | printk(KERN_INFO |
| 4776 | "%s: only %d byte free (need %d)\n", |
| 4777 | priv->netdev->name, left, data_len); |
| 4778 | else |
| 4779 | memcpy(skb_put(bptr->skb, data_len), data, |
| 4780 | data_len); |
| 4781 | |
| 4782 | bptr->fragnr = fragnr; |
| 4783 | if (frame_ctl & IEEE80211_FCTL_MOREFRAGS) |
| 4784 | return NULL; |
| 4785 | |
| 4786 | /* this was the last fragment - send it */ |
| 4787 | skb = bptr->skb; |
| 4788 | bptr->skb = NULL; /* free the entry */ |
| 4789 | at76_dbg(DBG_RX_FRAGS, "%s: last frag of seq %d", |
| 4790 | priv->netdev->name, seqnr); |
| 4791 | return skb; |
| 4792 | } |
| 4793 | |
| 4794 | /* got another sequence number */ |
| 4795 | if (fragnr == 0) { |
| 4796 | /* it's the start of a new chain - replace the |
| 4797 | old one by this */ |
| 4798 | /* bptr->sender has the correct value already */ |
| 4799 | at76_dbg(DBG_RX_FRAGS, |
| 4800 | "%s: start of new seq %d, removing old seq %d", |
| 4801 | priv->netdev->name, seqnr, bptr->seqnr); |
| 4802 | bptr->seqnr = seqnr; |
| 4803 | bptr->fragnr = 0; |
| 4804 | bptr->last_rx = jiffies; |
| 4805 | /* swap bptr->skb and priv->rx_skb */ |
| 4806 | skb = bptr->skb; |
| 4807 | bptr->skb = priv->rx_skb; |
| 4808 | priv->rx_skb = skb; |
| 4809 | } else { |
| 4810 | /* it from the middle of a new chain -> |
| 4811 | delete the old entry and skip the new one */ |
| 4812 | at76_dbg(DBG_RX_FRAGS, |
| 4813 | "%s: middle of new seq %d (%d) " |
| 4814 | "removing old seq %d", |
| 4815 | priv->netdev->name, seqnr, fragnr, |
| 4816 | bptr->seqnr); |
| 4817 | dev_kfree_skb(bptr->skb); |
| 4818 | bptr->skb = NULL; |
| 4819 | } |
| 4820 | return NULL; |
| 4821 | } |
| 4822 | |
| 4823 | /* if we didn't find a chain for the sender address, optr |
| 4824 | points either to the first free or the oldest entry */ |
| 4825 | |
| 4826 | if (fragnr != 0) { |
| 4827 | /* this is not the begin of a fragment chain ... */ |
| 4828 | at76_dbg(DBG_RX_FRAGS, |
| 4829 | "%s: no chain for non-first fragment (%d)", |
| 4830 | priv->netdev->name, fragnr); |
| 4831 | return NULL; |
| 4832 | } |
| 4833 | |
| 4834 | BUG_ON(!optr); |
| 4835 | if (optr->skb) { |
| 4836 | /* swap the skb's */ |
| 4837 | skb = optr->skb; |
| 4838 | optr->skb = priv->rx_skb; |
| 4839 | priv->rx_skb = skb; |
| 4840 | |
| 4841 | at76_dbg(DBG_RX_FRAGS, |
| 4842 | "%s: free old contents: sender %s seq/frag %d/%d", |
| 4843 | priv->netdev->name, mac2str(optr->sender), |
| 4844 | optr->seqnr, optr->fragnr); |
| 4845 | |
| 4846 | } else { |
| 4847 | /* take the skb from priv->rx_skb */ |
| 4848 | optr->skb = priv->rx_skb; |
| 4849 | /* let at76_submit_rx_urb() allocate a new skb */ |
| 4850 | priv->rx_skb = NULL; |
| 4851 | |
| 4852 | at76_dbg(DBG_RX_FRAGS, "%s: use a free entry", |
| 4853 | priv->netdev->name); |
| 4854 | } |
| 4855 | memcpy(optr->sender, i802_11_hdr->addr2, ETH_ALEN); |
| 4856 | optr->seqnr = seqnr; |
| 4857 | optr->fragnr = 0; |
| 4858 | optr->last_rx = jiffies; |
| 4859 | |
| 4860 | return NULL; |
| 4861 | } |
| 4862 | |
| 4863 | /* Rx interrupt: we expect the complete data buffer in priv->rx_skb */ |
| 4864 | static void at76_rx_data(struct at76_priv *priv) |
| 4865 | { |
| 4866 | struct net_device *netdev = priv->netdev; |
| 4867 | struct net_device_stats *stats = &priv->stats; |
| 4868 | struct sk_buff *skb = priv->rx_skb; |
| 4869 | struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; |
| 4870 | struct ieee80211_hdr_3addr *i802_11_hdr; |
| 4871 | int length = le16_to_cpu(buf->wlength); |
| 4872 | |
| 4873 | at76_dbg(DBG_RX_DATA, "%s received data packet: %s", netdev->name, |
| 4874 | hex2str(skb->data, AT76_RX_HDRLEN)); |
| 4875 | |
| 4876 | at76_dbg(DBG_RX_DATA_CONTENT, "rx packet: %s", |
| 4877 | hex2str(skb->data + AT76_RX_HDRLEN, length)); |
| 4878 | |
| 4879 | skb = at76_check_for_rx_frags(priv); |
| 4880 | if (!skb) |
| 4881 | return; |
| 4882 | |
| 4883 | /* Atmel header and the FCS are already removed */ |
| 4884 | i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; |
| 4885 | |
| 4886 | skb->dev = netdev; |
| 4887 | skb->ip_summed = CHECKSUM_NONE; /* TODO: should check CRC */ |
| 4888 | |
| 4889 | if (is_broadcast_ether_addr(i802_11_hdr->addr1)) { |
| 4890 | if (!compare_ether_addr(i802_11_hdr->addr1, netdev->broadcast)) |
| 4891 | skb->pkt_type = PACKET_BROADCAST; |
| 4892 | else |
| 4893 | skb->pkt_type = PACKET_MULTICAST; |
| 4894 | } else if (compare_ether_addr(i802_11_hdr->addr1, netdev->dev_addr)) |
| 4895 | skb->pkt_type = PACKET_OTHERHOST; |
| 4896 | |
| 4897 | at76_ieee80211_to_eth(skb, priv->iw_mode); |
| 4898 | |
| 4899 | netdev->last_rx = jiffies; |
| 4900 | netif_rx(skb); |
| 4901 | stats->rx_packets++; |
| 4902 | stats->rx_bytes += length; |
| 4903 | |
| 4904 | return; |
| 4905 | } |
| 4906 | |
| 4907 | static void at76_rx_monitor_mode(struct at76_priv *priv) |
| 4908 | { |
| 4909 | struct at76_rx_radiotap *rt; |
| 4910 | u8 *payload; |
| 4911 | int skblen; |
| 4912 | struct net_device *netdev = priv->netdev; |
| 4913 | struct at76_rx_buffer *buf = |
| 4914 | (struct at76_rx_buffer *)priv->rx_skb->data; |
| 4915 | /* length including the IEEE802.11 header and the trailing FCS, |
| 4916 | but not at76_rx_buffer */ |
| 4917 | int length = le16_to_cpu(buf->wlength); |
| 4918 | struct sk_buff *skb = priv->rx_skb; |
| 4919 | struct net_device_stats *stats = &priv->stats; |
| 4920 | |
| 4921 | if (length < IEEE80211_FCS_LEN) { |
| 4922 | /* buffer contains no data */ |
| 4923 | at76_dbg(DBG_MONITOR_MODE, |
| 4924 | "%s: MONITOR MODE: rx skb without data", |
| 4925 | priv->netdev->name); |
| 4926 | return; |
| 4927 | } |
| 4928 | |
| 4929 | skblen = sizeof(struct at76_rx_radiotap) + length; |
| 4930 | |
| 4931 | skb = dev_alloc_skb(skblen); |
| 4932 | if (!skb) { |
| 4933 | printk(KERN_ERR "%s: MONITOR MODE: dev_alloc_skb for radiotap " |
| 4934 | "header returned NULL\n", priv->netdev->name); |
| 4935 | return; |
| 4936 | } |
| 4937 | |
| 4938 | skb_put(skb, skblen); |
| 4939 | |
| 4940 | rt = (struct at76_rx_radiotap *)skb->data; |
| 4941 | payload = skb->data + sizeof(struct at76_rx_radiotap); |
| 4942 | |
| 4943 | rt->rt_hdr.it_version = 0; |
| 4944 | rt->rt_hdr.it_pad = 0; |
| 4945 | rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct at76_rx_radiotap)); |
| 4946 | rt->rt_hdr.it_present = cpu_to_le32(AT76_RX_RADIOTAP_PRESENT); |
| 4947 | |
| 4948 | rt->rt_tsft = cpu_to_le64(le32_to_cpu(buf->rx_time)); |
| 4949 | rt->rt_rate = hw_rates[buf->rx_rate] & (~0x80); |
| 4950 | rt->rt_signal = buf->rssi; |
| 4951 | rt->rt_noise = buf->noise_level; |
| 4952 | rt->rt_flags = IEEE80211_RADIOTAP_F_FCS; |
| 4953 | if (buf->fragmentation) |
| 4954 | rt->rt_flags |= IEEE80211_RADIOTAP_F_FRAG; |
| 4955 | |
| 4956 | memcpy(payload, buf->packet, length); |
| 4957 | skb->dev = netdev; |
| 4958 | skb->ip_summed = CHECKSUM_NONE; |
| 4959 | skb_reset_mac_header(skb); |
| 4960 | skb->pkt_type = PACKET_OTHERHOST; |
| 4961 | skb->protocol = htons(ETH_P_802_2); |
| 4962 | |
| 4963 | netdev->last_rx = jiffies; |
| 4964 | netif_rx(skb); |
| 4965 | stats->rx_packets++; |
| 4966 | stats->rx_bytes += length; |
| 4967 | } |
| 4968 | |
| 4969 | /* Check if we spy on the sender address in buf and update stats */ |
| 4970 | static void at76_iwspy_update(struct at76_priv *priv, |
| 4971 | struct at76_rx_buffer *buf) |
| 4972 | { |
| 4973 | struct ieee80211_hdr_3addr *hdr = |
| 4974 | (struct ieee80211_hdr_3addr *)buf->packet; |
| 4975 | struct iw_quality qual; |
| 4976 | |
| 4977 | /* We can only set the level here */ |
| 4978 | qual.updated = IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID; |
| 4979 | qual.level = 0; |
| 4980 | qual.noise = 0; |
| 4981 | at76_calc_level(priv, buf, &qual); |
| 4982 | |
| 4983 | spin_lock_bh(&priv->spy_spinlock); |
| 4984 | |
| 4985 | if (priv->spy_data.spy_number > 0) |
| 4986 | wireless_spy_update(priv->netdev, hdr->addr2, &qual); |
| 4987 | |
| 4988 | spin_unlock_bh(&priv->spy_spinlock); |
| 4989 | } |
| 4990 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 4991 | static void at76_rx_tasklet(unsigned long param) |
| 4992 | { |
| 4993 | struct urb *urb = (struct urb *)param; |
| 4994 | struct at76_priv *priv = urb->context; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4995 | struct net_device *netdev = priv->netdev; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 4996 | struct at76_rx_buffer *buf; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 4997 | struct ieee80211_hdr_3addr *i802_11_hdr; |
| 4998 | u16 frame_ctl; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 4999 | |
| 5000 | if (priv->device_unplugged) { |
| 5001 | at76_dbg(DBG_DEVSTART, "device unplugged"); |
| 5002 | if (urb) |
| 5003 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); |
| 5004 | return; |
| 5005 | } |
| 5006 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5007 | if (!priv->rx_skb || !netdev || !priv->rx_skb->data) |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5008 | return; |
| 5009 | |
| 5010 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; |
| 5011 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5012 | i802_11_hdr = (struct ieee80211_hdr_3addr *)buf->packet; |
| 5013 | |
| 5014 | frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); |
| 5015 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5016 | if (urb->status != 0) { |
| 5017 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) |
| 5018 | at76_dbg(DBG_URB, |
| 5019 | "%s %s: - nonzero Rx bulk status received: %d", |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5020 | __func__, netdev->name, urb->status); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5021 | return; |
| 5022 | } |
| 5023 | |
| 5024 | at76_dbg(DBG_RX_ATMEL_HDR, |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5025 | "%s: rx frame: rate %d rssi %d noise %d link %d %s", |
| 5026 | priv->netdev->name, buf->rx_rate, buf->rssi, buf->noise_level, |
| 5027 | buf->link_quality, hex2str(i802_11_hdr, 48)); |
| 5028 | if (priv->iw_mode == IW_MODE_MONITOR) { |
| 5029 | at76_rx_monitor_mode(priv); |
| 5030 | goto exit; |
| 5031 | } |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5032 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5033 | /* there is a new bssid around, accept it: */ |
| 5034 | if (buf->newbss && priv->iw_mode == IW_MODE_ADHOC) { |
| 5035 | at76_dbg(DBG_PROGRESS, "%s: rx newbss", netdev->name); |
| 5036 | schedule_work(&priv->work_new_bss); |
| 5037 | } |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5038 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5039 | switch (frame_ctl & IEEE80211_FCTL_FTYPE) { |
| 5040 | case IEEE80211_FTYPE_DATA: |
| 5041 | at76_rx_data(priv); |
| 5042 | break; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5043 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5044 | case IEEE80211_FTYPE_MGMT: |
| 5045 | /* jal: TODO: find out if we can update iwspy also on |
| 5046 | other frames than management (might depend on the |
| 5047 | radio chip / firmware version !) */ |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5048 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5049 | at76_iwspy_update(priv, buf); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5050 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5051 | at76_rx_mgmt(priv, buf); |
| 5052 | break; |
| 5053 | |
| 5054 | case IEEE80211_FTYPE_CTL: |
| 5055 | at76_dbg(DBG_RX_CTRL, "%s: ignored ctrl frame: %04x", |
| 5056 | priv->netdev->name, frame_ctl); |
| 5057 | break; |
| 5058 | |
| 5059 | default: |
| 5060 | printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", |
| 5061 | priv->netdev->name, frame_ctl); |
| 5062 | } |
| 5063 | exit: |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5064 | at76_submit_rx_urb(priv); |
| 5065 | } |
| 5066 | |
| 5067 | /* Load firmware into kernel memory and parse it */ |
| 5068 | static struct fwentry *at76_load_firmware(struct usb_device *udev, |
| 5069 | enum board_type board_type) |
| 5070 | { |
| 5071 | int ret; |
| 5072 | char *str; |
| 5073 | struct at76_fw_header *fwh; |
| 5074 | struct fwentry *fwe = &firmwares[board_type]; |
| 5075 | |
| 5076 | mutex_lock(&fw_mutex); |
| 5077 | |
| 5078 | if (fwe->loaded) { |
| 5079 | at76_dbg(DBG_FW, "re-using previously loaded fw"); |
| 5080 | goto exit; |
| 5081 | } |
| 5082 | |
| 5083 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); |
| 5084 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); |
| 5085 | if (ret < 0) { |
| 5086 | dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", |
| 5087 | fwe->fwname); |
| 5088 | dev_printk(KERN_ERR, &udev->dev, |
| 5089 | "you may need to download the firmware from " |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5090 | "http://developer.berlios.de/projects/at76c503a/"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5091 | goto exit; |
| 5092 | } |
| 5093 | |
| 5094 | at76_dbg(DBG_FW, "got it."); |
| 5095 | fwh = (struct at76_fw_header *)(fwe->fw->data); |
| 5096 | |
| 5097 | if (fwe->fw->size <= sizeof(*fwh)) { |
| 5098 | dev_printk(KERN_ERR, &udev->dev, |
| 5099 | "firmware is too short (0x%zx)\n", fwe->fw->size); |
| 5100 | goto exit; |
| 5101 | } |
| 5102 | |
| 5103 | /* CRC currently not checked */ |
| 5104 | fwe->board_type = le32_to_cpu(fwh->board_type); |
| 5105 | if (fwe->board_type != board_type) { |
| 5106 | dev_printk(KERN_ERR, &udev->dev, |
| 5107 | "board type mismatch, requested %u, got %u\n", |
| 5108 | board_type, fwe->board_type); |
| 5109 | goto exit; |
| 5110 | } |
| 5111 | |
| 5112 | fwe->fw_version.major = fwh->major; |
| 5113 | fwe->fw_version.minor = fwh->minor; |
| 5114 | fwe->fw_version.patch = fwh->patch; |
| 5115 | fwe->fw_version.build = fwh->build; |
| 5116 | |
| 5117 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); |
| 5118 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); |
| 5119 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); |
| 5120 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); |
| 5121 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); |
| 5122 | |
| 5123 | fwe->loaded = 1; |
| 5124 | |
| 5125 | dev_printk(KERN_DEBUG, &udev->dev, |
| 5126 | "using firmware %s (version %d.%d.%d-%d)\n", |
| 5127 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); |
| 5128 | |
| 5129 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, |
| 5130 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), |
| 5131 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); |
| 5132 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); |
| 5133 | |
| 5134 | exit: |
| 5135 | mutex_unlock(&fw_mutex); |
| 5136 | |
| 5137 | if (fwe->loaded) |
| 5138 | return fwe; |
| 5139 | else |
| 5140 | return NULL; |
| 5141 | } |
| 5142 | |
| 5143 | /* Allocate network device and initialize private data */ |
| 5144 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) |
| 5145 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5146 | struct net_device *netdev; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5147 | struct at76_priv *priv; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5148 | int i; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5149 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5150 | /* allocate memory for our device state and initialize it */ |
| 5151 | netdev = alloc_etherdev(sizeof(struct at76_priv)); |
| 5152 | if (!netdev) { |
| 5153 | dev_printk(KERN_ERR, &udev->dev, "out of memory\n"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5154 | return NULL; |
| 5155 | } |
| 5156 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5157 | priv = netdev_priv(netdev); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5158 | |
| 5159 | priv->udev = udev; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5160 | priv->netdev = netdev; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5161 | |
| 5162 | mutex_init(&priv->mtx); |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5163 | INIT_WORK(&priv->work_assoc_done, at76_work_assoc_done); |
| 5164 | INIT_WORK(&priv->work_join, at76_work_join); |
| 5165 | INIT_WORK(&priv->work_new_bss, at76_work_new_bss); |
| 5166 | INIT_WORK(&priv->work_start_scan, at76_work_start_scan); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5167 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); |
| 5168 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5169 | INIT_DELAYED_WORK(&priv->dwork_restart, at76_dwork_restart); |
| 5170 | INIT_DELAYED_WORK(&priv->dwork_get_scan, at76_dwork_get_scan); |
| 5171 | INIT_DELAYED_WORK(&priv->dwork_beacon, at76_dwork_beacon); |
| 5172 | INIT_DELAYED_WORK(&priv->dwork_auth, at76_dwork_auth); |
| 5173 | INIT_DELAYED_WORK(&priv->dwork_assoc, at76_dwork_assoc); |
| 5174 | |
| 5175 | spin_lock_init(&priv->mgmt_spinlock); |
| 5176 | priv->next_mgmt_bulk = NULL; |
| 5177 | priv->mac_state = MAC_INIT; |
| 5178 | |
| 5179 | /* initialize empty BSS list */ |
| 5180 | priv->curr_bss = NULL; |
| 5181 | INIT_LIST_HEAD(&priv->bss_list); |
| 5182 | spin_lock_init(&priv->bss_list_spinlock); |
| 5183 | |
| 5184 | init_timer(&priv->bss_list_timer); |
| 5185 | priv->bss_list_timer.data = (unsigned long)priv; |
| 5186 | priv->bss_list_timer.function = at76_bss_list_timeout; |
| 5187 | |
| 5188 | spin_lock_init(&priv->spy_spinlock); |
| 5189 | |
| 5190 | /* mark all rx data entries as unused */ |
| 5191 | for (i = 0; i < NR_RX_DATA_BUF; i++) |
| 5192 | priv->rx_data[i].skb = NULL; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5193 | |
| 5194 | priv->rx_tasklet.func = at76_rx_tasklet; |
| 5195 | priv->rx_tasklet.data = 0; |
| 5196 | |
| 5197 | priv->pm_mode = AT76_PM_OFF; |
| 5198 | priv->pm_period = 0; |
| 5199 | |
| 5200 | return priv; |
| 5201 | } |
| 5202 | |
| 5203 | static int at76_alloc_urbs(struct at76_priv *priv, |
| 5204 | struct usb_interface *interface) |
| 5205 | { |
| 5206 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; |
| 5207 | int i; |
| 5208 | int buffer_size; |
| 5209 | struct usb_host_interface *iface_desc; |
| 5210 | |
| 5211 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 5212 | |
| 5213 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, |
| 5214 | interface->altsetting[0].desc.bNumEndpoints); |
| 5215 | |
| 5216 | ep_in = NULL; |
| 5217 | ep_out = NULL; |
| 5218 | iface_desc = interface->cur_altsetting; |
| 5219 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { |
| 5220 | endpoint = &iface_desc->endpoint[i].desc; |
| 5221 | |
| 5222 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", |
| 5223 | __func__, i, endpoint->bEndpointAddress, |
| 5224 | endpoint->bmAttributes); |
| 5225 | |
| 5226 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) |
| 5227 | ep_in = endpoint; |
| 5228 | |
| 5229 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) |
| 5230 | ep_out = endpoint; |
| 5231 | } |
| 5232 | |
| 5233 | if (!ep_in || !ep_out) { |
| 5234 | dev_printk(KERN_ERR, &interface->dev, |
| 5235 | "bulk endpoints missing\n"); |
| 5236 | return -ENXIO; |
| 5237 | } |
| 5238 | |
| 5239 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); |
| 5240 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); |
| 5241 | |
| 5242 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 5243 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 5244 | if (!priv->rx_urb || !priv->tx_urb) { |
| 5245 | dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); |
| 5246 | return -ENOMEM; |
| 5247 | } |
| 5248 | |
| 5249 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; |
| 5250 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); |
| 5251 | if (!priv->bulk_out_buffer) { |
| 5252 | dev_printk(KERN_ERR, &interface->dev, |
| 5253 | "cannot allocate output buffer\n"); |
| 5254 | return -ENOMEM; |
| 5255 | } |
| 5256 | |
| 5257 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 5258 | |
| 5259 | return 0; |
| 5260 | } |
| 5261 | |
| 5262 | /* Register network device and initialize the hardware */ |
| 5263 | static int at76_init_new_device(struct at76_priv *priv, |
| 5264 | struct usb_interface *interface) |
| 5265 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5266 | struct net_device *netdev = priv->netdev; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5267 | int ret; |
| 5268 | |
| 5269 | /* set up the endpoint information */ |
| 5270 | /* check out the endpoints */ |
| 5271 | |
| 5272 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", |
| 5273 | interface->cur_altsetting->desc.bNumEndpoints); |
| 5274 | |
| 5275 | ret = at76_alloc_urbs(priv, interface); |
| 5276 | if (ret < 0) |
| 5277 | goto exit; |
| 5278 | |
| 5279 | /* MAC address */ |
| 5280 | ret = at76_get_hw_config(priv); |
| 5281 | if (ret < 0) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5282 | dev_printk(KERN_ERR, &interface->dev, |
| 5283 | "cannot get MAC address\n"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5284 | goto exit; |
| 5285 | } |
| 5286 | |
| 5287 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5288 | /* init. netdev->dev_addr */ |
| 5289 | memcpy(netdev->dev_addr, priv->mac_addr, ETH_ALEN); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5290 | |
| 5291 | priv->channel = DEF_CHANNEL; |
| 5292 | priv->iw_mode = IW_MODE_INFRA; |
| 5293 | priv->rts_threshold = DEF_RTS_THRESHOLD; |
| 5294 | priv->frag_threshold = DEF_FRAG_THRESHOLD; |
| 5295 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; |
| 5296 | priv->txrate = TX_RATE_AUTO; |
| 5297 | priv->preamble_type = PREAMBLE_TYPE_LONG; |
| 5298 | priv->beacon_period = 100; |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5299 | priv->beacons_last_qual = jiffies; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5300 | priv->auth_mode = WLAN_AUTH_OPEN; |
| 5301 | priv->scan_min_time = DEF_SCAN_MIN_TIME; |
| 5302 | priv->scan_max_time = DEF_SCAN_MAX_TIME; |
| 5303 | priv->scan_mode = SCAN_TYPE_ACTIVE; |
| 5304 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5305 | netdev->flags &= ~IFF_MULTICAST; /* not yet or never */ |
| 5306 | netdev->open = at76_open; |
| 5307 | netdev->stop = at76_stop; |
| 5308 | netdev->get_stats = at76_get_stats; |
| 5309 | netdev->ethtool_ops = &at76_ethtool_ops; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5310 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5311 | /* Add pointers to enable iwspy support. */ |
| 5312 | priv->wireless_data.spy_data = &priv->spy_data; |
| 5313 | netdev->wireless_data = &priv->wireless_data; |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5314 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5315 | netdev->hard_start_xmit = at76_tx; |
| 5316 | netdev->tx_timeout = at76_tx_timeout; |
| 5317 | netdev->watchdog_timeo = 2 * HZ; |
| 5318 | netdev->wireless_handlers = &at76_handler_def; |
| 5319 | netdev->set_multicast_list = at76_set_multicast; |
| 5320 | netdev->set_mac_address = at76_set_mac_address; |
| 5321 | dev_alloc_name(netdev, "wlan%d"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5322 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5323 | ret = register_netdev(priv->netdev); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5324 | if (ret) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5325 | dev_printk(KERN_ERR, &interface->dev, |
| 5326 | "cannot register netdevice (status %d)!\n", ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5327 | goto exit; |
| 5328 | } |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5329 | priv->netdev_registered = 1; |
John W. Linville | 02227c2 | 2008-10-24 15:48:59 -0400 | [diff] [blame] | 5330 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5331 | printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", |
| 5332 | netdev->name, dev_name(&interface->dev), mac2str(priv->mac_addr), |
| 5333 | priv->fw_version.major, priv->fw_version.minor, |
| 5334 | priv->fw_version.patch, priv->fw_version.build); |
| 5335 | printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", netdev->name, |
| 5336 | priv->regulatory_domain, priv->domain->name); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5337 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5338 | /* we let this timer run the whole time this driver instance lives */ |
| 5339 | mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5340 | |
| 5341 | exit: |
| 5342 | return ret; |
| 5343 | } |
| 5344 | |
| 5345 | static void at76_delete_device(struct at76_priv *priv) |
| 5346 | { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5347 | int i; |
| 5348 | |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5349 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 5350 | |
| 5351 | /* The device is gone, don't bother turning it off */ |
| 5352 | priv->device_unplugged = 1; |
| 5353 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5354 | if (priv->netdev_registered) |
| 5355 | unregister_netdev(priv->netdev); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5356 | |
| 5357 | /* assuming we used keventd, it must quiesce too */ |
| 5358 | flush_scheduled_work(); |
| 5359 | |
| 5360 | kfree(priv->bulk_out_buffer); |
| 5361 | |
| 5362 | if (priv->tx_urb) { |
| 5363 | usb_kill_urb(priv->tx_urb); |
| 5364 | usb_free_urb(priv->tx_urb); |
| 5365 | } |
| 5366 | if (priv->rx_urb) { |
| 5367 | usb_kill_urb(priv->rx_urb); |
| 5368 | usb_free_urb(priv->rx_urb); |
| 5369 | } |
| 5370 | |
| 5371 | at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); |
| 5372 | |
Wei Yongjun | 0773a5c | 2009-02-25 18:26:33 +0800 | [diff] [blame] | 5373 | kfree_skb(priv->rx_skb); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5374 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5375 | at76_free_bss_list(priv); |
| 5376 | del_timer_sync(&priv->bss_list_timer); |
| 5377 | cancel_delayed_work(&priv->dwork_get_scan); |
| 5378 | cancel_delayed_work(&priv->dwork_beacon); |
| 5379 | cancel_delayed_work(&priv->dwork_auth); |
| 5380 | cancel_delayed_work(&priv->dwork_assoc); |
| 5381 | |
| 5382 | if (priv->mac_state == MAC_CONNECTED) |
| 5383 | at76_iwevent_bss_disconnect(priv->netdev); |
| 5384 | |
| 5385 | for (i = 0; i < NR_RX_DATA_BUF; i++) |
| 5386 | if (priv->rx_data[i].skb) { |
| 5387 | dev_kfree_skb(priv->rx_data[i].skb); |
| 5388 | priv->rx_data[i].skb = NULL; |
| 5389 | } |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5390 | usb_put_dev(priv->udev); |
| 5391 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5392 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/netdev", __func__); |
| 5393 | free_netdev(priv->netdev); /* priv is in netdev */ |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5394 | |
| 5395 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 5396 | } |
| 5397 | |
| 5398 | static int at76_probe(struct usb_interface *interface, |
| 5399 | const struct usb_device_id *id) |
| 5400 | { |
| 5401 | int ret; |
| 5402 | struct at76_priv *priv; |
| 5403 | struct fwentry *fwe; |
| 5404 | struct usb_device *udev; |
| 5405 | int op_mode; |
| 5406 | int need_ext_fw = 0; |
| 5407 | struct mib_fw_version fwv; |
| 5408 | int board_type = (int)id->driver_info; |
| 5409 | |
| 5410 | udev = usb_get_dev(interface_to_usbdev(interface)); |
| 5411 | |
| 5412 | /* Load firmware into kernel memory */ |
| 5413 | fwe = at76_load_firmware(udev, board_type); |
| 5414 | if (!fwe) { |
| 5415 | ret = -ENOENT; |
| 5416 | goto error; |
| 5417 | } |
| 5418 | |
| 5419 | op_mode = at76_get_op_mode(udev); |
| 5420 | |
| 5421 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 5422 | |
| 5423 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? |
| 5424 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ |
| 5425 | |
| 5426 | if (op_mode == OPMODE_HW_CONFIG_MODE) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5427 | dev_printk(KERN_ERR, &interface->dev, |
| 5428 | "cannot handle a device in HW_CONFIG_MODE\n"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5429 | ret = -EBUSY; |
| 5430 | goto error; |
| 5431 | } |
| 5432 | |
| 5433 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH |
| 5434 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
| 5435 | /* download internal firmware part */ |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5436 | dev_printk(KERN_DEBUG, &interface->dev, |
| 5437 | "downloading internal firmware\n"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5438 | ret = at76_load_internal_fw(udev, fwe); |
| 5439 | if (ret < 0) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5440 | dev_printk(KERN_ERR, &interface->dev, |
| 5441 | "error %d downloading internal firmware\n", |
| 5442 | ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5443 | goto error; |
| 5444 | } |
| 5445 | usb_put_dev(udev); |
| 5446 | return ret; |
| 5447 | } |
| 5448 | |
| 5449 | /* Internal firmware already inside the device. Get firmware |
| 5450 | * version to test if external firmware is loaded. |
| 5451 | * This works only for newer firmware, e.g. the Intersil 0.90.x |
| 5452 | * says "control timeout on ep0in" and subsequent |
| 5453 | * at76_get_op_mode() fail too :-( */ |
| 5454 | |
| 5455 | /* if version >= 0.100.x.y or device with built-in flash we can |
| 5456 | * query the device for the fw version */ |
| 5457 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) |
| 5458 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { |
| 5459 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 5460 | if (ret < 0 || (fwv.major | fwv.minor) == 0) |
| 5461 | need_ext_fw = 1; |
| 5462 | } else |
| 5463 | /* No way to check firmware version, reload to be sure */ |
| 5464 | need_ext_fw = 1; |
| 5465 | |
| 5466 | if (need_ext_fw) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5467 | dev_printk(KERN_DEBUG, &interface->dev, |
| 5468 | "downloading external firmware\n"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5469 | |
| 5470 | ret = at76_load_external_fw(udev, fwe); |
| 5471 | if (ret) |
| 5472 | goto error; |
| 5473 | |
| 5474 | /* Re-check firmware version */ |
| 5475 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 5476 | if (ret < 0) { |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5477 | dev_printk(KERN_ERR, &interface->dev, |
| 5478 | "error %d getting firmware version\n", ret); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5479 | goto error; |
| 5480 | } |
| 5481 | } |
| 5482 | |
| 5483 | priv = at76_alloc_new_device(udev); |
| 5484 | if (!priv) { |
| 5485 | ret = -ENOMEM; |
| 5486 | goto error; |
| 5487 | } |
| 5488 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5489 | SET_NETDEV_DEV(priv->netdev, &interface->dev); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5490 | usb_set_intfdata(interface, priv); |
| 5491 | |
| 5492 | memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); |
| 5493 | priv->board_type = board_type; |
| 5494 | |
| 5495 | ret = at76_init_new_device(priv, interface); |
| 5496 | if (ret < 0) |
| 5497 | at76_delete_device(priv); |
| 5498 | |
| 5499 | return ret; |
| 5500 | |
| 5501 | error: |
| 5502 | usb_put_dev(udev); |
| 5503 | return ret; |
| 5504 | } |
| 5505 | |
| 5506 | static void at76_disconnect(struct usb_interface *interface) |
| 5507 | { |
| 5508 | struct at76_priv *priv; |
| 5509 | |
| 5510 | priv = usb_get_intfdata(interface); |
| 5511 | usb_set_intfdata(interface, NULL); |
| 5512 | |
| 5513 | /* Disconnect after loading internal firmware */ |
| 5514 | if (!priv) |
| 5515 | return; |
| 5516 | |
Greg Kroah-Hartman | 89cb7e7 | 2009-02-03 16:28:48 -0800 | [diff] [blame] | 5517 | printk(KERN_INFO "%s: disconnecting\n", priv->netdev->name); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5518 | at76_delete_device(priv); |
| 5519 | dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); |
| 5520 | } |
| 5521 | |
| 5522 | /* Structure for registering this driver with the USB subsystem */ |
| 5523 | static struct usb_driver at76_driver = { |
| 5524 | .name = DRIVER_NAME, |
| 5525 | .probe = at76_probe, |
| 5526 | .disconnect = at76_disconnect, |
| 5527 | .id_table = dev_table, |
| 5528 | }; |
| 5529 | |
| 5530 | static int __init at76_mod_init(void) |
| 5531 | { |
| 5532 | int result; |
| 5533 | |
| 5534 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); |
| 5535 | |
| 5536 | mutex_init(&fw_mutex); |
| 5537 | |
| 5538 | /* register this driver with the USB subsystem */ |
| 5539 | result = usb_register(&at76_driver); |
| 5540 | if (result < 0) |
| 5541 | printk(KERN_ERR DRIVER_NAME |
| 5542 | ": usb_register failed (status %d)\n", result); |
| 5543 | |
| 5544 | led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); |
| 5545 | return result; |
| 5546 | } |
| 5547 | |
| 5548 | static void __exit at76_mod_exit(void) |
| 5549 | { |
| 5550 | int i; |
| 5551 | |
| 5552 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); |
| 5553 | usb_deregister(&at76_driver); |
| 5554 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) { |
| 5555 | if (firmwares[i].fw) |
| 5556 | release_firmware(firmwares[i].fw); |
| 5557 | } |
| 5558 | led_trigger_unregister_simple(ledtrig_tx); |
| 5559 | } |
| 5560 | |
| 5561 | module_param_named(debug, at76_debug, int, 0600); |
| 5562 | MODULE_PARM_DESC(debug, "Debugging level"); |
| 5563 | |
| 5564 | module_init(at76_mod_init); |
| 5565 | module_exit(at76_mod_exit); |
| 5566 | |
| 5567 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); |
| 5568 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); |
| 5569 | MODULE_AUTHOR("Alex <alex@foogod.com>"); |
| 5570 | MODULE_AUTHOR("Nick Jones"); |
| 5571 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); |
| 5572 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); |
Pavel Roskin | 99e06e3 | 2008-10-13 14:33:13 -0700 | [diff] [blame] | 5573 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 5574 | MODULE_LICENSE("GPL"); |