Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*** -*- linux-c -*- ********************************************************** |
| 2 | |
| 3 | Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. |
| 4 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 5 | Copyright 2000-2001 ATMEL Corporation. |
| 6 | Copyright 2003-2004 Simon Kelley. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 8 | This code was developed from version 2.1.1 of the Atmel drivers, |
| 9 | released by Atmel corp. under the GPL in December 2002. It also |
| 10 | includes code from the Linux aironet drivers (C) Benjamin Reed, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | and the Linux PCMCIA package, (C) David Hinds and the Linux wireless |
| 12 | extensions, (C) Jean Tourrilhes. |
| 13 | |
| 14 | The firmware module for reading the MAC address of the card comes from |
| 15 | net.russotto.AtmelMACFW, written by Matthew T. Russotto and copyright |
| 16 | by him. net.russotto.AtmelMACFW is used under the GPL license version 2. |
| 17 | This file contains the module in binary form and, under the terms |
| 18 | of the GPL, in source form. The source is located at the end of the file. |
| 19 | |
| 20 | This program is free software; you can redistribute it and/or modify |
| 21 | it under the terms of the GNU General Public License as published by |
| 22 | the Free Software Foundation; either version 2 of the License, or |
| 23 | (at your option) any later version. |
| 24 | |
| 25 | This software is distributed in the hope that it will be useful, |
| 26 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 27 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 28 | GNU General Public License for more details. |
| 29 | |
| 30 | You should have received a copy of the GNU General Public License |
| 31 | along with Atmel wireless lan drivers; if not, write to the Free Software |
| 32 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 33 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 34 | For all queries about this code, please contact the current author, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation. |
| 36 | |
| 37 | Credit is due to HP UK and Cambridge Online Systems Ltd for supplying |
| 38 | hardware used during development of this driver. |
| 39 | |
| 40 | ******************************************************************************/ |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <linux/init.h> |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 43 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #include <linux/ptrace.h> |
| 47 | #include <linux/slab.h> |
| 48 | #include <linux/string.h> |
| 49 | #include <linux/ctype.h> |
| 50 | #include <linux/timer.h> |
Harvey Harrison | 9a6ab76 | 2008-05-16 11:20:25 -0700 | [diff] [blame] | 51 | #include <asm/byteorder.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #include <asm/uaccess.h> |
| 54 | #include <linux/module.h> |
| 55 | #include <linux/netdevice.h> |
| 56 | #include <linux/etherdevice.h> |
| 57 | #include <linux/skbuff.h> |
| 58 | #include <linux/if_arp.h> |
| 59 | #include <linux/ioport.h> |
| 60 | #include <linux/fcntl.h> |
| 61 | #include <linux/delay.h> |
| 62 | #include <linux/wireless.h> |
| 63 | #include <net/iw_handler.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #include <linux/crc32.h> |
| 65 | #include <linux/proc_fs.h> |
| 66 | #include <linux/device.h> |
| 67 | #include <linux/moduleparam.h> |
| 68 | #include <linux/firmware.h> |
S.Çağlar Onur | 6e33e30 | 2008-02-14 17:36:49 +0200 | [diff] [blame] | 69 | #include <linux/jiffies.h> |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 70 | #include <linux/ieee80211.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #include "atmel.h" |
| 72 | |
| 73 | #define DRIVER_MAJOR 0 |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 74 | #define DRIVER_MINOR 98 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | MODULE_AUTHOR("Simon Kelley"); |
| 77 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); |
| 78 | MODULE_LICENSE("GPL"); |
| 79 | MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards"); |
| 80 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 81 | /* The name of the firmware file to be loaded |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | over-rides any automatic selection */ |
| 83 | static char *firmware = NULL; |
| 84 | module_param(firmware, charp, 0); |
| 85 | |
| 86 | /* table of firmware file names */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 87 | static struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | AtmelFWType fw_type; |
| 89 | const char *fw_file; |
| 90 | const char *fw_file_ext; |
| 91 | } fw_table[] = { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 92 | { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" }, |
| 93 | { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" }, |
| 94 | { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" }, |
| 95 | { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" }, |
| 96 | { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" }, |
| 97 | { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" }, |
| 98 | { ATMEL_FW_TYPE_504A_2958, "atmel_at76c504a_2958", "bin" }, |
| 99 | { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" }, |
| 100 | { ATMEL_FW_TYPE_NONE, NULL, NULL } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | }; |
Ben Hutchings | b98a032 | 2009-11-07 21:58:05 +0000 | [diff] [blame] | 102 | MODULE_FIRMWARE("atmel_at76c502-wpa.bin"); |
| 103 | MODULE_FIRMWARE("atmel_at76c502.bin"); |
| 104 | MODULE_FIRMWARE("atmel_at76c502d-wpa.bin"); |
| 105 | MODULE_FIRMWARE("atmel_at76c502d.bin"); |
| 106 | MODULE_FIRMWARE("atmel_at76c502e-wpa.bin"); |
| 107 | MODULE_FIRMWARE("atmel_at76c502e.bin"); |
| 108 | MODULE_FIRMWARE("atmel_at76c502_3com-wpa.bin"); |
| 109 | MODULE_FIRMWARE("atmel_at76c502_3com.bin"); |
| 110 | MODULE_FIRMWARE("atmel_at76c504-wpa.bin"); |
| 111 | MODULE_FIRMWARE("atmel_at76c504.bin"); |
| 112 | MODULE_FIRMWARE("atmel_at76c504_2958-wpa.bin"); |
| 113 | MODULE_FIRMWARE("atmel_at76c504_2958.bin"); |
| 114 | MODULE_FIRMWARE("atmel_at76c504a_2958-wpa.bin"); |
| 115 | MODULE_FIRMWARE("atmel_at76c504a_2958.bin"); |
| 116 | MODULE_FIRMWARE("atmel_at76c506-wpa.bin"); |
| 117 | MODULE_FIRMWARE("atmel_at76c506.bin"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
| 119 | #define MAX_SSID_LENGTH 32 |
| 120 | #define MGMT_JIFFIES (256 * HZ / 100) |
| 121 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 122 | #define MAX_BSS_ENTRIES 64 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
| 124 | /* registers */ |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 125 | #define GCR 0x00 /* (SIR0) General Configuration Register */ |
| 126 | #define BSR 0x02 /* (SIR1) Bank Switching Select Register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | #define AR 0x04 |
| 128 | #define DR 0x08 |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 129 | #define MR1 0x12 /* Mirror Register 1 */ |
| 130 | #define MR2 0x14 /* Mirror Register 2 */ |
| 131 | #define MR3 0x16 /* Mirror Register 3 */ |
| 132 | #define MR4 0x18 /* Mirror Register 4 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | #define GPR1 0x0c |
| 135 | #define GPR2 0x0e |
| 136 | #define GPR3 0x10 |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 137 | /* |
| 138 | * Constants for the GCR register. |
| 139 | */ |
| 140 | #define GCR_REMAP 0x0400 /* Remap internal SRAM to 0 */ |
| 141 | #define GCR_SWRES 0x0080 /* BIU reset (ARM and PAI are NOT reset) */ |
| 142 | #define GCR_CORES 0x0060 /* Core Reset (ARM and PAI are reset) */ |
| 143 | #define GCR_ENINT 0x0002 /* Enable Interrupts */ |
| 144 | #define GCR_ACKINT 0x0008 /* Acknowledge Interrupts */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 146 | #define BSS_SRAM 0x0200 /* AMBA module selection --> SRAM */ |
| 147 | #define BSS_IRAM 0x0100 /* AMBA module selection --> IRAM */ |
| 148 | /* |
| 149 | *Constants for the MR registers. |
| 150 | */ |
| 151 | #define MAC_INIT_COMPLETE 0x0001 /* MAC init has been completed */ |
| 152 | #define MAC_BOOT_COMPLETE 0x0010 /* MAC boot has been completed */ |
| 153 | #define MAC_INIT_OK 0x0002 /* MAC boot has been completed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | #define MIB_MAX_DATA_BYTES 212 |
| 156 | #define MIB_HEADER_SIZE 4 /* first four fields */ |
| 157 | |
| 158 | struct get_set_mib { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 159 | u8 type; |
| 160 | u8 size; |
| 161 | u8 index; |
| 162 | u8 reserved; |
| 163 | u8 data[MIB_MAX_DATA_BYTES]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | }; |
| 165 | |
| 166 | struct rx_desc { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 167 | u32 Next; |
| 168 | u16 MsduPos; |
| 169 | u16 MsduSize; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 170 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 171 | u8 State; |
| 172 | u8 Status; |
| 173 | u8 Rate; |
| 174 | u8 Rssi; |
| 175 | u8 LinkQuality; |
| 176 | u8 PreambleType; |
| 177 | u16 Duration; |
| 178 | u32 RxTime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | }; |
| 180 | |
| 181 | #define RX_DESC_FLAG_VALID 0x80 |
| 182 | #define RX_DESC_FLAG_CONSUMED 0x40 |
| 183 | #define RX_DESC_FLAG_IDLE 0x00 |
| 184 | |
| 185 | #define RX_STATUS_SUCCESS 0x00 |
| 186 | |
| 187 | #define RX_DESC_MSDU_POS_OFFSET 4 |
| 188 | #define RX_DESC_MSDU_SIZE_OFFSET 6 |
| 189 | #define RX_DESC_FLAGS_OFFSET 8 |
| 190 | #define RX_DESC_STATUS_OFFSET 9 |
| 191 | #define RX_DESC_RSSI_OFFSET 11 |
| 192 | #define RX_DESC_LINK_QUALITY_OFFSET 12 |
| 193 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 |
| 194 | #define RX_DESC_DURATION_OFFSET 14 |
| 195 | #define RX_DESC_RX_TIME_OFFSET 16 |
| 196 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | struct tx_desc { |
| 198 | u32 NextDescriptor; |
| 199 | u16 TxStartOfFrame; |
| 200 | u16 TxLength; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | u8 TxState; |
| 203 | u8 TxStatus; |
| 204 | u8 RetryCount; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | u8 TxRate; |
| 207 | |
| 208 | u8 KeyIndex; |
| 209 | u8 ChiperType; |
| 210 | u8 ChipreLength; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 211 | u8 Reserved1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
| 213 | u8 Reserved; |
| 214 | u8 PacketType; |
| 215 | u16 HostTxLength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | }; |
| 217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | #define TX_DESC_NEXT_OFFSET 0 |
| 219 | #define TX_DESC_POS_OFFSET 4 |
| 220 | #define TX_DESC_SIZE_OFFSET 6 |
| 221 | #define TX_DESC_FLAGS_OFFSET 8 |
| 222 | #define TX_DESC_STATUS_OFFSET 9 |
| 223 | #define TX_DESC_RETRY_OFFSET 10 |
| 224 | #define TX_DESC_RATE_OFFSET 11 |
| 225 | #define TX_DESC_KEY_INDEX_OFFSET 12 |
| 226 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 |
| 227 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 |
| 228 | #define TX_DESC_PACKET_TYPE_OFFSET 17 |
| 229 | #define TX_DESC_HOST_LENGTH_OFFSET 18 |
| 230 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 231 | /* |
| 232 | * Host-MAC interface |
| 233 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | |
| 235 | #define TX_STATUS_SUCCESS 0x00 |
| 236 | |
| 237 | #define TX_FIRM_OWN 0x80 |
| 238 | #define TX_DONE 0x40 |
| 239 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | #define TX_ERROR 0x01 |
| 241 | |
| 242 | #define TX_PACKET_TYPE_DATA 0x01 |
| 243 | #define TX_PACKET_TYPE_MGMT 0x02 |
| 244 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 245 | #define ISR_EMPTY 0x00 /* no bits set in ISR */ |
| 246 | #define ISR_TxCOMPLETE 0x01 /* packet transmitted */ |
| 247 | #define ISR_RxCOMPLETE 0x02 /* packet received */ |
| 248 | #define ISR_RxFRAMELOST 0x04 /* Rx Frame lost */ |
| 249 | #define ISR_FATAL_ERROR 0x08 /* Fatal error */ |
| 250 | #define ISR_COMMAND_COMPLETE 0x10 /* command completed */ |
| 251 | #define ISR_OUT_OF_RANGE 0x20 /* command completed */ |
| 252 | #define ISR_IBSS_MERGE 0x40 /* (4.1.2.30): IBSS merge */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 253 | #define ISR_GENERIC_IRQ 0x80 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | #define Local_Mib_Type 0x01 |
| 256 | #define Mac_Address_Mib_Type 0x02 |
| 257 | #define Mac_Mib_Type 0x03 |
| 258 | #define Statistics_Mib_Type 0x04 |
| 259 | #define Mac_Mgmt_Mib_Type 0x05 |
| 260 | #define Mac_Wep_Mib_Type 0x06 |
| 261 | #define Phy_Mib_Type 0x07 |
| 262 | #define Multi_Domain_MIB 0x08 |
| 263 | |
| 264 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 |
| 265 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 |
| 266 | #define MAC_MIB_RTS_THRESHOLD_POS 10 |
| 267 | #define MAC_MIB_SHORT_RETRY_POS 16 |
| 268 | #define MAC_MIB_LONG_RETRY_POS 17 |
| 269 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 |
| 270 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 |
| 271 | #define MAC_MGMT_MIB_STATION_ID_POS 6 |
| 272 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 |
| 273 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 |
| 274 | #define MAC_MGMT_MIB_PS_MODE_POS 53 |
| 275 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 |
| 276 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 |
| 277 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 |
| 278 | #define PHY_MIB_CHANNEL_POS 14 |
| 279 | #define PHY_MIB_RATE_SET_POS 20 |
| 280 | #define PHY_MIB_REG_DOMAIN_POS 26 |
| 281 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 |
| 282 | #define LOCAL_MIB_SSID_SIZE 5 |
| 283 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 |
| 284 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 |
| 285 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 |
| 286 | #define LOCAL_MIB_PREAMBLE_TYPE 9 |
| 287 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | #define CMD_Set_MIB_Vars 0x01 |
| 290 | #define CMD_Get_MIB_Vars 0x02 |
| 291 | #define CMD_Scan 0x03 |
| 292 | #define CMD_Join 0x04 |
| 293 | #define CMD_Start 0x05 |
| 294 | #define CMD_EnableRadio 0x06 |
| 295 | #define CMD_DisableRadio 0x07 |
| 296 | #define CMD_SiteSurvey 0x0B |
| 297 | |
| 298 | #define CMD_STATUS_IDLE 0x00 |
| 299 | #define CMD_STATUS_COMPLETE 0x01 |
| 300 | #define CMD_STATUS_UNKNOWN 0x02 |
| 301 | #define CMD_STATUS_INVALID_PARAMETER 0x03 |
| 302 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 |
| 303 | #define CMD_STATUS_TIME_OUT 0x07 |
| 304 | #define CMD_STATUS_IN_PROGRESS 0x08 |
| 305 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 |
| 306 | #define CMD_STATUS_HOST_ERROR 0xFF |
| 307 | #define CMD_STATUS_BUSY 0xFE |
| 308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
| 310 | #define CMD_BLOCK_STATUS_OFFSET 1 |
| 311 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 |
| 312 | |
| 313 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 |
| 314 | |
| 315 | #define MGMT_FRAME_BODY_OFFSET 24 |
| 316 | #define MAX_AUTHENTICATION_RETRIES 3 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 317 | #define MAX_ASSOCIATION_RETRIES 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
| 319 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 |
| 320 | |
| 321 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ |
| 322 | #define LOOP_RETRY_LIMIT 500000 |
| 323 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 324 | #define ACTIVE_MODE 1 |
| 325 | #define PS_MODE 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | |
| 327 | #define MAX_ENCRYPTION_KEYS 4 |
| 328 | #define MAX_ENCRYPTION_KEY_SIZE 40 |
| 329 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 330 | /* |
| 331 | * 802.11 related definitions |
| 332 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 334 | /* |
| 335 | * Regulatory Domains |
| 336 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 338 | #define REG_DOMAIN_FCC 0x10 /* Channels 1-11 USA */ |
| 339 | #define REG_DOMAIN_DOC 0x20 /* Channel 1-11 Canada */ |
| 340 | #define REG_DOMAIN_ETSI 0x30 /* Channel 1-13 Europe (ex Spain/France) */ |
| 341 | #define REG_DOMAIN_SPAIN 0x31 /* Channel 10-11 Spain */ |
| 342 | #define REG_DOMAIN_FRANCE 0x32 /* Channel 10-13 France */ |
| 343 | #define REG_DOMAIN_MKK 0x40 /* Channel 14 Japan */ |
| 344 | #define REG_DOMAIN_MKK1 0x41 /* Channel 1-14 Japan(MKK1) */ |
| 345 | #define REG_DOMAIN_ISRAEL 0x50 /* Channel 3-9 ISRAEL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 347 | #define BSS_TYPE_AD_HOC 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | #define BSS_TYPE_INFRASTRUCTURE 2 |
| 349 | |
| 350 | #define SCAN_TYPE_ACTIVE 0 |
| 351 | #define SCAN_TYPE_PASSIVE 1 |
| 352 | |
| 353 | #define LONG_PREAMBLE 0 |
| 354 | #define SHORT_PREAMBLE 1 |
| 355 | #define AUTO_PREAMBLE 2 |
| 356 | |
| 357 | #define DATA_FRAME_WS_HEADER_SIZE 30 |
| 358 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 359 | /* promiscuous mode control */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | #define PROM_MODE_OFF 0x0 |
| 361 | #define PROM_MODE_UNKNOWN 0x1 |
| 362 | #define PROM_MODE_CRC_FAILED 0x2 |
| 363 | #define PROM_MODE_DUPLICATED 0x4 |
| 364 | #define PROM_MODE_MGMT 0x8 |
| 365 | #define PROM_MODE_CTRL 0x10 |
| 366 | #define PROM_MODE_BAD_PROTOCOL 0x20 |
| 367 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 368 | #define IFACE_INT_STATUS_OFFSET 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | #define IFACE_INT_MASK_OFFSET 1 |
| 370 | #define IFACE_LOCKOUT_HOST_OFFSET 2 |
| 371 | #define IFACE_LOCKOUT_MAC_OFFSET 3 |
| 372 | #define IFACE_FUNC_CTRL_OFFSET 28 |
| 373 | #define IFACE_MAC_STAT_OFFSET 30 |
| 374 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 |
| 375 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 376 | #define CIPHER_SUITE_NONE 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | #define CIPHER_SUITE_WEP_64 1 |
| 378 | #define CIPHER_SUITE_TKIP 2 |
| 379 | #define CIPHER_SUITE_AES 3 |
| 380 | #define CIPHER_SUITE_CCX 4 |
| 381 | #define CIPHER_SUITE_WEP_128 5 |
| 382 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 383 | /* |
| 384 | * IFACE MACROS & definitions |
| 385 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 387 | /* |
| 388 | * FuncCtrl field: |
| 389 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | #define FUNC_CTRL_TxENABLE 0x10 |
| 391 | #define FUNC_CTRL_RxENABLE 0x20 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 392 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
| 394 | /* A stub firmware image which reads the MAC address from NVRAM on the card. |
| 395 | For copyright information and source see the end of this file. */ |
| 396 | static u8 mac_reader[] = { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 397 | 0x06, 0x00, 0x00, 0xea, 0x04, 0x00, 0x00, 0xea, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x00, 0xea, |
| 398 | 0x01, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0xea, 0xff, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea, |
| 399 | 0xd3, 0x00, 0xa0, 0xe3, 0x00, 0xf0, 0x21, 0xe1, 0x0e, 0x04, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, |
| 400 | 0x81, 0x11, 0xa0, 0xe1, 0x00, 0x10, 0x81, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x1c, 0x10, 0x90, 0xe5, |
| 401 | 0x10, 0x10, 0xc1, 0xe3, 0x1c, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x08, 0x10, 0x80, 0xe5, |
| 402 | 0x02, 0x03, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, 0xb0, 0x10, 0xc0, 0xe1, 0xb4, 0x10, 0xc0, 0xe1, |
| 403 | 0xb8, 0x10, 0xc0, 0xe1, 0xbc, 0x10, 0xc0, 0xe1, 0x56, 0xdc, 0xa0, 0xe3, 0x21, 0x00, 0x00, 0xeb, |
| 404 | 0x0a, 0x00, 0xa0, 0xe3, 0x1a, 0x00, 0x00, 0xeb, 0x10, 0x00, 0x00, 0xeb, 0x07, 0x00, 0x00, 0xeb, |
| 405 | 0x02, 0x03, 0xa0, 0xe3, 0x02, 0x14, 0xa0, 0xe3, 0xb4, 0x10, 0xc0, 0xe1, 0x4c, 0x10, 0x9f, 0xe5, |
| 406 | 0xbc, 0x10, 0xc0, 0xe1, 0x10, 0x10, 0xa0, 0xe3, 0xb8, 0x10, 0xc0, 0xe1, 0xfe, 0xff, 0xff, 0xea, |
| 407 | 0x00, 0x40, 0x2d, 0xe9, 0x00, 0x20, 0xa0, 0xe3, 0x02, 0x3c, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, |
| 408 | 0x28, 0x00, 0x9f, 0xe5, 0x37, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, |
| 409 | 0x00, 0x40, 0x2d, 0xe9, 0x12, 0x2e, 0xa0, 0xe3, 0x06, 0x30, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, |
| 410 | 0x02, 0x04, 0xa0, 0xe3, 0x2f, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, |
| 411 | 0x00, 0x02, 0x00, 0x02, 0x80, 0x01, 0x90, 0xe0, 0x01, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x50, 0xe2, |
| 412 | 0xfc, 0xff, 0xff, 0xea, 0x1e, 0xff, 0x2f, 0xe1, 0x80, 0x10, 0xa0, 0xe3, 0xf3, 0x06, 0xa0, 0xe3, |
| 413 | 0x00, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, |
| 414 | 0x04, 0x10, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x0e, 0x34, 0xa0, 0xe3, 0x1c, 0x10, 0x93, 0xe5, |
| 415 | 0x02, 0x1a, 0x81, 0xe3, 0x1c, 0x10, 0x83, 0xe5, 0x58, 0x11, 0x9f, 0xe5, 0x30, 0x10, 0x80, 0xe5, |
| 416 | 0x54, 0x11, 0x9f, 0xe5, 0x34, 0x10, 0x80, 0xe5, 0x38, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0x80, 0xe5, |
| 417 | 0x10, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x90, 0xe5, 0x1e, 0xff, 0x2f, 0xe1, 0xf3, 0x16, 0xa0, 0xe3, |
| 418 | 0x08, 0x00, 0x91, 0xe5, 0x05, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, 0x10, 0x00, 0x91, 0xe5, |
| 419 | 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0xff, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, |
| 420 | 0x10, 0x00, 0x91, 0xe5, 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, |
| 421 | 0x10, 0x00, 0x91, 0xe5, 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, |
| 422 | 0xff, 0x00, 0x00, 0xe2, 0x1e, 0xff, 0x2f, 0xe1, 0x30, 0x40, 0x2d, 0xe9, 0x00, 0x50, 0xa0, 0xe1, |
| 423 | 0x03, 0x40, 0xa0, 0xe1, 0xa2, 0x02, 0xa0, 0xe1, 0x08, 0x00, 0x00, 0xe2, 0x03, 0x00, 0x80, 0xe2, |
| 424 | 0xd8, 0x10, 0x9f, 0xe5, 0x00, 0x00, 0xc1, 0xe5, 0x01, 0x20, 0xc1, 0xe5, 0xe2, 0xff, 0xff, 0xeb, |
| 425 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x14, 0x00, 0xa0, 0xe3, 0xc4, 0xff, 0xff, 0xeb, |
| 426 | 0x04, 0x20, 0xa0, 0xe1, 0x05, 0x10, 0xa0, 0xe1, 0x02, 0x00, 0xa0, 0xe3, 0x01, 0x00, 0x00, 0xeb, |
| 427 | 0x30, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x70, 0x40, 0x2d, 0xe9, 0xf3, 0x46, 0xa0, 0xe3, |
| 428 | 0x00, 0x30, 0xa0, 0xe3, 0x00, 0x00, 0x50, 0xe3, 0x08, 0x00, 0x00, 0x9a, 0x8c, 0x50, 0x9f, 0xe5, |
| 429 | 0x03, 0x60, 0xd5, 0xe7, 0x0c, 0x60, 0x84, 0xe5, 0x10, 0x60, 0x94, 0xe5, 0x02, 0x00, 0x16, 0xe3, |
| 430 | 0xfc, 0xff, 0xff, 0x0a, 0x01, 0x30, 0x83, 0xe2, 0x00, 0x00, 0x53, 0xe1, 0xf7, 0xff, 0xff, 0x3a, |
| 431 | 0xff, 0x30, 0xa0, 0xe3, 0x0c, 0x30, 0x84, 0xe5, 0x08, 0x00, 0x94, 0xe5, 0x10, 0x00, 0x94, 0xe5, |
| 432 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x94, 0xe5, 0x00, 0x00, 0xa0, 0xe3, |
| 433 | 0x00, 0x00, 0x52, 0xe3, 0x0b, 0x00, 0x00, 0x9a, 0x10, 0x50, 0x94, 0xe5, 0x02, 0x00, 0x15, 0xe3, |
| 434 | 0xfc, 0xff, 0xff, 0x0a, 0x0c, 0x30, 0x84, 0xe5, 0x10, 0x50, 0x94, 0xe5, 0x01, 0x00, 0x15, 0xe3, |
| 435 | 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x50, 0x94, 0xe5, 0x01, 0x50, 0xc1, 0xe4, 0x01, 0x00, 0x80, 0xe2, |
| 436 | 0x02, 0x00, 0x50, 0xe1, 0xf3, 0xff, 0xff, 0x3a, 0xc8, 0x00, 0xa0, 0xe3, 0x98, 0xff, 0xff, 0xeb, |
| 437 | 0x70, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x01, 0x0c, 0x00, 0x02, 0x01, 0x02, 0x00, 0x02, |
| 438 | 0x00, 0x01, 0x00, 0x02 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | }; |
| 440 | |
| 441 | struct atmel_private { |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 442 | void *card; /* Bus dependent structure varies for PCcard */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | int (*present_callback)(void *); /* And callback which uses it */ |
| 444 | char firmware_id[32]; |
| 445 | AtmelFWType firmware_type; |
| 446 | u8 *firmware; |
| 447 | int firmware_length; |
| 448 | struct timer_list management_timer; |
| 449 | struct net_device *dev; |
| 450 | struct device *sys_dev; |
| 451 | struct iw_statistics wstats; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 452 | spinlock_t irqlock, timerlock; /* spinlocks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 454 | enum { |
| 455 | CARD_TYPE_PARALLEL_FLASH, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | CARD_TYPE_SPI_FLASH, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 457 | CARD_TYPE_EEPROM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | } card_type; |
| 459 | int do_rx_crc; /* If we need to CRC incoming packets */ |
| 460 | int probe_crc; /* set if we don't yet know */ |
| 461 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ |
| 462 | u16 rx_desc_head; |
| 463 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; |
| 464 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 465 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | u16 frag_seq, frag_len, frag_no; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 467 | u8 frag_source[6]; |
| 468 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
| 470 | u8 group_cipher_suite, pairwise_cipher_suite; |
| 471 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 472 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
| 474 | |
| 475 | u16 host_info_base; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 476 | struct host_info_struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | /* NB this is matched to the hardware, don't change. */ |
| 478 | u8 volatile int_status; |
| 479 | u8 volatile int_mask; |
| 480 | u8 volatile lockout_host; |
| 481 | u8 volatile lockout_mac; |
| 482 | |
| 483 | u16 tx_buff_pos; |
| 484 | u16 tx_buff_size; |
| 485 | u16 tx_desc_pos; |
| 486 | u16 tx_desc_count; |
| 487 | |
| 488 | u16 rx_buff_pos; |
| 489 | u16 rx_buff_size; |
| 490 | u16 rx_desc_pos; |
| 491 | u16 rx_desc_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 492 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | u16 build_version; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 494 | u16 command_pos; |
| 495 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | u16 major_version; |
| 497 | u16 minor_version; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 498 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | u16 func_ctrl; |
| 500 | u16 mac_status; |
| 501 | u16 generic_IRQ_type; |
| 502 | u8 reserved[2]; |
| 503 | } host_info; |
| 504 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 505 | enum { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | STATION_STATE_SCANNING, |
| 507 | STATION_STATE_JOINNING, |
| 508 | STATION_STATE_AUTHENTICATING, |
| 509 | STATION_STATE_ASSOCIATING, |
| 510 | STATION_STATE_READY, |
| 511 | STATION_STATE_REASSOCIATING, |
| 512 | STATION_STATE_DOWN, |
| 513 | STATION_STATE_MGMT_ERROR |
| 514 | } station_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 515 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | int operating_mode, power_mode; |
| 517 | time_t last_qual; |
| 518 | int beacons_this_sec; |
| 519 | int channel; |
| 520 | int reg_domain, config_reg_domain; |
| 521 | int tx_rate; |
| 522 | int auto_tx_rate; |
| 523 | int rts_threshold; |
| 524 | int frag_threshold; |
| 525 | int long_retry, short_retry; |
| 526 | int preamble; |
| 527 | int default_beacon_period, beacon_period, listen_interval; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 528 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
| 530 | enum { |
| 531 | SITE_SURVEY_IDLE, |
| 532 | SITE_SURVEY_IN_PROGRESS, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 533 | SITE_SURVEY_COMPLETED |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | } site_survey_state; |
S.Çağlar Onur | 6e33e30 | 2008-02-14 17:36:49 +0200 | [diff] [blame] | 535 | unsigned long last_survey; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | |
| 537 | int station_was_associated, station_is_associated; |
| 538 | int fast_scan; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 539 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | struct bss_info { |
| 541 | int channel; |
| 542 | int SSIDsize; |
| 543 | int RSSI; |
| 544 | int UsingWEP; |
| 545 | int preamble; |
| 546 | int beacon_period; |
| 547 | int BSStype; |
| 548 | u8 BSSID[6]; |
| 549 | u8 SSID[MAX_SSID_LENGTH]; |
| 550 | } BSSinfo[MAX_BSS_ENTRIES]; |
| 551 | int BSS_list_entries, current_BSS; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 552 | int connect_to_any_BSS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | int SSID_size, new_SSID_size; |
| 554 | u8 CurrentBSSID[6], BSSID[6]; |
| 555 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; |
| 556 | u64 last_beacon_timestamp; |
| 557 | u8 rx_buf[MAX_WIRELESS_BODY]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | }; |
| 559 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 560 | static u8 atmel_basic_rates[4] = {0x82, 0x84, 0x0b, 0x16}; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | |
| 562 | static const struct { |
| 563 | int reg_domain; |
| 564 | int min, max; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 565 | char *name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
| 567 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, |
| 568 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, |
| 569 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 570 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
| 572 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, |
| 573 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; |
| 574 | |
| 575 | static void build_wpa_mib(struct atmel_private *priv); |
| 576 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 577 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
David Woodhouse | 2f26e8a | 2008-05-24 00:09:29 +0100 | [diff] [blame] | 578 | const unsigned char *src, u16 len); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 579 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
| 580 | u16 src, u16 len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
| 582 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); |
| 583 | static int atmel_lock_mac(struct atmel_private *priv); |
| 584 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); |
| 585 | static void atmel_command_irq(struct atmel_private *priv); |
| 586 | static int atmel_validate_channel(struct atmel_private *priv, int channel); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 587 | static void atmel_management_frame(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 588 | struct ieee80211_hdr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | u16 frame_len, u8 rssi); |
| 590 | static void atmel_management_timer(u_long a); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 591 | static void atmel_send_command(struct atmel_private *priv, int command, |
| 592 | void *cmd, int cmd_size); |
| 593 | static int atmel_send_command_wait(struct atmel_private *priv, int command, |
| 594 | void *cmd, int cmd_size); |
| 595 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 596 | struct ieee80211_hdr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | u8 *body, int body_len); |
| 598 | |
| 599 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 600 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
| 601 | u8 data); |
| 602 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
| 603 | u16 data); |
| 604 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
| 605 | u8 *data, int data_len); |
| 606 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
| 607 | u8 *data, int data_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
| 609 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); |
| 610 | static void atmel_smooth_qual(struct atmel_private *priv); |
| 611 | static void atmel_writeAR(struct net_device *dev, u16 data); |
| 612 | static int probe_atmel_card(struct net_device *dev); |
Dmitry Torokhov | 5c877fe | 2006-10-08 00:14:30 -0400 | [diff] [blame] | 613 | static int reset_atmel_card(struct net_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | static void atmel_enter_state(struct atmel_private *priv, int new_state); |
| 615 | int atmel_open (struct net_device *dev); |
| 616 | |
| 617 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) |
| 618 | { |
| 619 | return priv->host_info_base + offset; |
| 620 | } |
| 621 | |
| 622 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) |
| 623 | { |
| 624 | return priv->host_info.command_pos + offset; |
| 625 | } |
| 626 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 627 | static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | { |
| 629 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; |
| 630 | } |
| 631 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 632 | static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | { |
| 634 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; |
| 635 | } |
| 636 | |
| 637 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) |
| 638 | { |
| 639 | return inb(dev->base_addr + offset); |
| 640 | } |
| 641 | |
| 642 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) |
| 643 | { |
| 644 | outb(data, dev->base_addr + offset); |
| 645 | } |
| 646 | |
| 647 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) |
| 648 | { |
| 649 | return inw(dev->base_addr + offset); |
| 650 | } |
| 651 | |
| 652 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) |
| 653 | { |
| 654 | outw(data, dev->base_addr + offset); |
| 655 | } |
| 656 | |
| 657 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) |
| 658 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 659 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | return atmel_read8(priv->dev, DR); |
| 661 | } |
| 662 | |
| 663 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) |
| 664 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 665 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | atmel_write8(priv->dev, DR, data); |
| 667 | } |
| 668 | |
| 669 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) |
| 670 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 671 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | return atmel_read16(priv->dev, DR); |
| 673 | } |
| 674 | |
| 675 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) |
| 676 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 677 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | atmel_write16(priv->dev, DR, data); |
| 679 | } |
| 680 | |
| 681 | static const struct iw_handler_def atmel_handler_def; |
| 682 | |
| 683 | static void tx_done_irq(struct atmel_private *priv) |
| 684 | { |
| 685 | int i; |
| 686 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 687 | for (i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
| 689 | i < priv->host_info.tx_desc_count; |
| 690 | i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
| 692 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); |
| 693 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); |
| 694 | |
| 695 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); |
| 696 | |
| 697 | priv->tx_free_mem += msdu_size; |
| 698 | priv->tx_desc_free++; |
| 699 | |
| 700 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) |
| 701 | priv->tx_buff_head = 0; |
| 702 | else |
| 703 | priv->tx_buff_head += msdu_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 706 | priv->tx_desc_head++ ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 707 | else |
| 708 | priv->tx_desc_head = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | if (type == TX_PACKET_TYPE_DATA) { |
| 711 | if (status == TX_STATUS_SUCCESS) |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 712 | priv->dev->stats.tx_packets++; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 713 | else |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 714 | priv->dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | netif_wake_queue(priv->dev); |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | |
| 720 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) |
| 721 | { |
| 722 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; |
| 723 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 724 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | return 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 726 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | if (bottom_free >= len) |
| 728 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 729 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | if (priv->tx_free_mem - bottom_free >= len) { |
| 731 | priv->tx_buff_tail = 0; |
| 732 | return priv->host_info.tx_buff_pos; |
| 733 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 734 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | return 0; |
| 736 | } |
| 737 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 738 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
| 739 | u16 len, u16 buff, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | { |
| 741 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); |
| 742 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); |
| 743 | if (!priv->use_wpa) |
| 744 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); |
| 745 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); |
| 746 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); |
| 747 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); |
| 748 | if (priv->use_wpa) { |
| 749 | int cipher_type, cipher_length; |
| 750 | if (is_bcast) { |
| 751 | cipher_type = priv->group_cipher_suite; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 752 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
| 753 | cipher_type == CIPHER_SUITE_WEP_128) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | cipher_length = 8; |
| 755 | else if (cipher_type == CIPHER_SUITE_TKIP) |
| 756 | cipher_length = 12; |
| 757 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || |
| 758 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { |
| 759 | cipher_type = priv->pairwise_cipher_suite; |
| 760 | cipher_length = 8; |
| 761 | } else { |
| 762 | cipher_type = CIPHER_SUITE_NONE; |
| 763 | cipher_length = 0; |
| 764 | } |
| 765 | } else { |
| 766 | cipher_type = priv->pairwise_cipher_suite; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 767 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
| 768 | cipher_type == CIPHER_SUITE_WEP_128) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | cipher_length = 8; |
| 770 | else if (cipher_type == CIPHER_SUITE_TKIP) |
| 771 | cipher_length = 12; |
| 772 | else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 || |
| 773 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { |
| 774 | cipher_type = priv->group_cipher_suite; |
| 775 | cipher_length = 8; |
| 776 | } else { |
| 777 | cipher_type = CIPHER_SUITE_NONE; |
| 778 | cipher_length = 0; |
| 779 | } |
| 780 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 781 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail), |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 783 | cipher_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
| 785 | cipher_length); |
| 786 | } |
| 787 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); |
| 788 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); |
| 789 | if (priv->tx_desc_previous != priv->tx_desc_tail) |
| 790 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); |
| 791 | priv->tx_desc_previous = priv->tx_desc_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 792 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | priv->tx_desc_tail++; |
| 794 | else |
| 795 | priv->tx_desc_tail = 0; |
| 796 | priv->tx_desc_free--; |
| 797 | priv->tx_free_mem -= len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | } |
| 799 | |
Stephen Hemminger | d0cf9c0 | 2009-08-31 19:50:57 +0000 | [diff] [blame] | 800 | static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | { |
Dmitry Torokhov | 00a5ebf | 2006-10-08 00:14:28 -0400 | [diff] [blame] | 802 | static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | struct atmel_private *priv = netdev_priv(dev); |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 804 | struct ieee80211_hdr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | unsigned long flags; |
| 806 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 807 | |
| 808 | if (priv->card && priv->present_callback && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | !(*priv->present_callback)(priv->card)) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 810 | dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | dev_kfree_skb(skb); |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 812 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 814 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | if (priv->station_state != STATION_STATE_READY) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 816 | dev->stats.tx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | dev_kfree_skb(skb); |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 818 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 820 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | /* first ensure the timer func cannot run */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 822 | spin_lock_bh(&priv->timerlock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | /* then stop the hardware ISR */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 824 | spin_lock_irqsave(&priv->irqlock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | /* nb doing the above in the opposite order will deadlock */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 826 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 828 | 12 first bytes (containing DA/SA) and put them in the appropriate |
| 829 | fields of the Wireless Header. Thus the packet length is then the |
| 830 | initial + 18 (+30-12) */ |
| 831 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | if (!(buff = find_tx_buff(priv, len + 18))) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 833 | dev->stats.tx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 835 | spin_unlock_bh(&priv->timerlock); |
| 836 | netif_stop_queue(dev); |
Patrick McHardy | 5b54814 | 2009-06-12 06:22:29 +0000 | [diff] [blame] | 837 | return NETDEV_TX_BUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 839 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 840 | frame_ctl = IEEE80211_FTYPE_DATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | header.duration_id = 0; |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 842 | header.seq_ctrl = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | if (priv->wep_is_on) |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 844 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | if (priv->operating_mode == IW_MODE_ADHOC) { |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 846 | skb_copy_from_linear_data(skb, &header.addr1, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | memcpy(&header.addr2, dev->dev_addr, 6); |
| 848 | memcpy(&header.addr3, priv->BSSID, 6); |
| 849 | } else { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 850 | frame_ctl |= IEEE80211_FCTL_TODS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | memcpy(&header.addr1, priv->CurrentBSSID, 6); |
| 852 | memcpy(&header.addr2, dev->dev_addr, 6); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 853 | skb_copy_from_linear_data(skb, &header.addr3, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 855 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | if (priv->use_wpa) |
| 857 | memcpy(&header.addr4, SNAP_RFC1024, 6); |
| 858 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 859 | header.frame_control = cpu_to_le16(frame_ctl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | /* Copy the wireless header into the card */ |
| 861 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); |
| 862 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ |
| 863 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); |
| 864 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 865 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | /* low bit of first byte of destination tells us if broadcast */ |
| 867 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 868 | dev->stats.tx_bytes += len; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 869 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 871 | spin_unlock_bh(&priv->timerlock); |
| 872 | dev_kfree_skb(skb); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 873 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 874 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | } |
| 876 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 877 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 878 | struct ieee80211_hdr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | u8 *body, int body_len) |
| 880 | { |
| 881 | u16 buff; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 882 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
| 883 | |
| 884 | if (!(buff = find_tx_buff(priv, len))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | return; |
| 886 | |
| 887 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); |
| 888 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); |
| 889 | priv->tx_buff_tail += len; |
| 890 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); |
| 891 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 892 | |
| 893 | static void fast_rx_path(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 894 | struct ieee80211_hdr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
| 896 | { |
| 897 | /* fast path: unfragmented packet copy directly into skbuf */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 898 | u8 mac4[6]; |
| 899 | struct sk_buff *skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | unsigned char *skbp; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 901 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | /* get the final, mac 4 header field, this tells us encapsulation */ |
| 903 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); |
| 904 | msdu_size -= 6; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 905 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | if (priv->do_rx_crc) { |
| 907 | crc = crc32_le(crc, mac4, 6); |
| 908 | msdu_size -= 4; |
| 909 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 910 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 912 | priv->dev->stats.rx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | return; |
| 914 | } |
| 915 | |
| 916 | skb_reserve(skb, 2); |
| 917 | skbp = skb_put(skb, msdu_size + 12); |
| 918 | atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 919 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | if (priv->do_rx_crc) { |
| 921 | u32 netcrc; |
| 922 | crc = crc32_le(crc, skbp + 12, msdu_size); |
| 923 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); |
| 924 | if ((crc ^ 0xffffffff) != netcrc) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 925 | priv->dev->stats.rx_crc_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | dev_kfree_skb(skb); |
| 927 | return; |
| 928 | } |
| 929 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 930 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | memcpy(skbp, header->addr1, 6); /* destination address */ |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 932 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | memcpy(&skbp[6], header->addr3, 6); |
| 934 | else |
| 935 | memcpy(&skbp[6], header->addr2, 6); /* source address */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 936 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | skb->protocol = eth_type_trans(skb, priv->dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 938 | skb->ip_summed = CHECKSUM_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | netif_rx(skb); |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 940 | priv->dev->stats.rx_bytes += 12 + msdu_size; |
| 941 | priv->dev->stats.rx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | } |
| 943 | |
| 944 | /* Test to see if the packet in card memory at packet_loc has a valid CRC |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 945 | It doesn't matter that this is slow: it is only used to proble the first few |
| 946 | packets. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
| 948 | { |
| 949 | int i = msdu_size - 4; |
| 950 | u32 netcrc, crc = 0xffffffff; |
| 951 | |
| 952 | if (msdu_size < 4) |
| 953 | return 0; |
| 954 | |
| 955 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 956 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | atmel_writeAR(priv->dev, packet_loc); |
| 958 | while (i--) { |
| 959 | u8 octet = atmel_read8(priv->dev, DR); |
| 960 | crc = crc32_le(crc, &octet, 1); |
| 961 | } |
| 962 | |
| 963 | return (crc ^ 0xffffffff) == netcrc; |
| 964 | } |
| 965 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 966 | static void frag_rx_path(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 967 | struct ieee80211_hdr *header, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 968 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, |
| 969 | u8 frag_no, int more_frags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 970 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 971 | u8 mac4[6]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | u8 source[6]; |
| 973 | struct sk_buff *skb; |
| 974 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 975 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | memcpy(source, header->addr3, 6); |
| 977 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 978 | memcpy(source, header->addr2, 6); |
| 979 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | rx_packet_loc += 24; /* skip header */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 981 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | if (priv->do_rx_crc) |
| 983 | msdu_size -= 4; |
| 984 | |
| 985 | if (frag_no == 0) { /* first fragment */ |
| 986 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6); |
| 987 | msdu_size -= 6; |
| 988 | rx_packet_loc += 6; |
| 989 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 990 | if (priv->do_rx_crc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | crc = crc32_le(crc, mac4, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 992 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | priv->frag_seq = seq_no; |
| 994 | priv->frag_no = 1; |
| 995 | priv->frag_len = msdu_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 996 | memcpy(priv->frag_source, source, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | memcpy(&priv->rx_buf[6], source, 6); |
| 998 | memcpy(priv->rx_buf, header->addr1, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 999 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
| 1001 | |
| 1002 | if (priv->do_rx_crc) { |
| 1003 | u32 netcrc; |
| 1004 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); |
| 1005 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); |
| 1006 | if ((crc ^ 0xffffffff) != netcrc) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1007 | priv->dev->stats.rx_crc_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | memset(priv->frag_source, 0xff, 6); |
| 1009 | } |
| 1010 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1011 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1012 | } else if (priv->frag_no == frag_no && |
| 1013 | priv->frag_seq == seq_no && |
| 1014 | memcmp(priv->frag_source, source, 6) == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1015 | |
| 1016 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | rx_packet_loc, msdu_size); |
| 1018 | if (priv->do_rx_crc) { |
| 1019 | u32 netcrc; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1020 | crc = crc32_le(crc, |
| 1021 | &priv->rx_buf[12 + priv->frag_len], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | msdu_size); |
| 1023 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); |
| 1024 | if ((crc ^ 0xffffffff) != netcrc) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1025 | priv->dev->stats.rx_crc_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | memset(priv->frag_source, 0xff, 6); |
| 1027 | more_frags = 1; /* don't send broken assembly */ |
| 1028 | } |
| 1029 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1030 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | priv->frag_len += msdu_size; |
| 1032 | priv->frag_no++; |
| 1033 | |
| 1034 | if (!more_frags) { /* last one */ |
| 1035 | memset(priv->frag_source, 0xff, 6); |
| 1036 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1037 | priv->dev->stats.rx_dropped++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | } else { |
| 1039 | skb_reserve(skb, 2); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1040 | memcpy(skb_put(skb, priv->frag_len + 12), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | priv->rx_buf, |
| 1042 | priv->frag_len + 12); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | skb->protocol = eth_type_trans(skb, priv->dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1044 | skb->ip_summed = CHECKSUM_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | netif_rx(skb); |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1046 | priv->dev->stats.rx_bytes += priv->frag_len + 12; |
| 1047 | priv->dev->stats.rx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | } |
| 1049 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | } else |
| 1051 | priv->wstats.discard.fragment++; |
| 1052 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1053 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | static void rx_done_irq(struct atmel_private *priv) |
| 1055 | { |
| 1056 | int i; |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 1057 | struct ieee80211_hdr header; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1058 | |
| 1059 | for (i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
| 1061 | i < priv->host_info.rx_desc_count; |
| 1062 | i++) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
| 1065 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); |
| 1066 | u32 crc = 0xffffffff; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1067 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | if (status != RX_STATUS_SUCCESS) { |
| 1069 | if (status == 0xc1) /* determined by experiment */ |
| 1070 | priv->wstats.discard.nwid++; |
| 1071 | else |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1072 | priv->dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | goto next; |
| 1074 | } |
| 1075 | |
| 1076 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); |
| 1077 | rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1078 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | if (msdu_size < 30) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1080 | priv->dev->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | goto next; |
| 1082 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1083 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 1084 | /* Get header as far as end of seq_ctrl */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1085 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 1086 | frame_ctl = le16_to_cpu(header.frame_control); |
| 1087 | seq_control = le16_to_cpu(header.seq_ctrl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1089 | /* probe for CRC use here if needed once five packets have |
| 1090 | arrived with the same crc status, we assume we know what's |
| 1091 | happening and stop probing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | if (priv->probe_crc) { |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 1093 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
| 1095 | } else { |
| 1096 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); |
| 1097 | } |
| 1098 | if (priv->do_rx_crc) { |
| 1099 | if (priv->crc_ok_cnt++ > 5) |
| 1100 | priv->probe_crc = 0; |
| 1101 | } else { |
| 1102 | if (priv->crc_ko_cnt++ > 5) |
| 1103 | priv->probe_crc = 0; |
| 1104 | } |
| 1105 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | /* don't CRC header when WEP in use */ |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 1108 | if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
| 1110 | } |
| 1111 | msdu_size -= 24; /* header */ |
| 1112 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1113 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 1114 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
| 1115 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; |
| 1116 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1117 | |
| 1118 | if (!more_fragments && packet_fragment_no == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
| 1120 | } else { |
| 1121 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, |
| 1122 | packet_sequence_no, packet_fragment_no, more_fragments); |
| 1123 | } |
| 1124 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1125 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 1126 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1127 | /* copy rest of packet into buffer */ |
| 1128 | atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1129 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | /* we use the same buffer for frag reassembly and control packets */ |
| 1131 | memset(priv->frag_source, 0xff, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | if (priv->do_rx_crc) { |
| 1134 | /* last 4 octets is crc */ |
| 1135 | msdu_size -= 4; |
| 1136 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); |
| 1137 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { |
Paulius Zaleckas | 736bc92 | 2008-05-06 23:50:30 +0300 | [diff] [blame] | 1138 | priv->dev->stats.rx_crc_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | goto next; |
| 1140 | } |
| 1141 | } |
| 1142 | |
| 1143 | atmel_management_frame(priv, &header, msdu_size, |
| 1144 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head))); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1145 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1147 | next: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | /* release descriptor */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1149 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
| 1150 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1152 | priv->rx_desc_head++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | else |
| 1154 | priv->rx_desc_head = 0; |
| 1155 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1156 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1157 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1158 | static irqreturn_t service_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | { |
| 1160 | struct net_device *dev = (struct net_device *) dev_id; |
| 1161 | struct atmel_private *priv = netdev_priv(dev); |
| 1162 | u8 isr; |
| 1163 | int i = -1; |
Joe Perches | 3370a89 | 2010-11-20 18:38:55 -0800 | [diff] [blame] | 1164 | static const u8 irq_order[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | ISR_OUT_OF_RANGE, |
| 1166 | ISR_RxCOMPLETE, |
| 1167 | ISR_TxCOMPLETE, |
| 1168 | ISR_RxFRAMELOST, |
| 1169 | ISR_FATAL_ERROR, |
| 1170 | ISR_COMMAND_COMPLETE, |
| 1171 | ISR_IBSS_MERGE, |
| 1172 | ISR_GENERIC_IRQ |
| 1173 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1174 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1175 | if (priv->card && priv->present_callback && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | !(*priv->present_callback)(priv->card)) |
| 1177 | return IRQ_HANDLED; |
| 1178 | |
| 1179 | /* In this state upper-level code assumes it can mess with |
| 1180 | the card unhampered by interrupts which may change register state. |
| 1181 | Note that even though the card shouldn't generate interrupts |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1182 | the inturrupt line may be shared. This allows card setup |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | to go on without disabling interrupts for a long time. */ |
| 1184 | if (priv->station_state == STATION_STATE_DOWN) |
| 1185 | return IRQ_NONE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1186 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
| 1188 | |
| 1189 | while (1) { |
| 1190 | if (!atmel_lock_mac(priv)) { |
| 1191 | /* failed to contact card */ |
| 1192 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); |
| 1193 | return IRQ_HANDLED; |
| 1194 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1195 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
| 1197 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1198 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | if (!isr) { |
| 1200 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ |
| 1201 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; |
| 1202 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1203 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1205 | |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 1206 | for (i = 0; i < ARRAY_SIZE(irq_order); i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | if (isr & irq_order[i]) |
| 1208 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1209 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | if (!atmel_lock_mac(priv)) { |
| 1211 | /* failed to contact card */ |
| 1212 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); |
| 1213 | return IRQ_HANDLED; |
| 1214 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1215 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1216 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
| 1217 | isr ^= irq_order[i]; |
| 1218 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); |
| 1219 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1220 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | switch (irq_order[i]) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1222 | |
| 1223 | case ISR_OUT_OF_RANGE: |
| 1224 | if (priv->operating_mode == IW_MODE_INFRA && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | priv->station_state == STATION_STATE_READY) { |
| 1226 | priv->station_is_associated = 0; |
| 1227 | atmel_scan(priv, 1); |
| 1228 | } |
| 1229 | break; |
| 1230 | |
| 1231 | case ISR_RxFRAMELOST: |
| 1232 | priv->wstats.discard.misc++; |
| 1233 | /* fall through */ |
| 1234 | case ISR_RxCOMPLETE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1235 | rx_done_irq(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | case ISR_TxCOMPLETE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1239 | tx_done_irq(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1241 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | case ISR_FATAL_ERROR: |
| 1243 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); |
| 1244 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 1245 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1246 | |
| 1247 | case ISR_COMMAND_COMPLETE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1248 | atmel_command_irq(priv); |
| 1249 | break; |
| 1250 | |
| 1251 | case ISR_IBSS_MERGE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1252 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | priv->CurrentBSSID, 6); |
| 1254 | /* The WPA stuff cares about the current AP address */ |
| 1255 | if (priv->use_wpa) |
| 1256 | build_wpa_mib(priv); |
| 1257 | break; |
| 1258 | case ISR_GENERIC_IRQ: |
| 1259 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); |
| 1260 | break; |
| 1261 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1262 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1263 | } |
| 1264 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1265 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | { |
| 1267 | struct atmel_private *priv = netdev_priv(dev); |
| 1268 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1269 | /* update the link quality here in case we are seeing no beacons |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | at all to drive the process */ |
| 1271 | atmel_smooth_qual(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1272 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | priv->wstats.status = priv->station_state; |
| 1274 | |
| 1275 | if (priv->operating_mode == IW_MODE_INFRA) { |
| 1276 | if (priv->station_state != STATION_STATE_READY) { |
| 1277 | priv->wstats.qual.qual = 0; |
| 1278 | priv->wstats.qual.level = 0; |
| 1279 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID |
| 1280 | | IW_QUAL_LEVEL_INVALID); |
| 1281 | } |
| 1282 | priv->wstats.qual.noise = 0; |
| 1283 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; |
| 1284 | } else { |
| 1285 | /* Quality levels cannot be determined in ad-hoc mode, |
| 1286 | because we can 'hear' more that one remote station. */ |
| 1287 | priv->wstats.qual.qual = 0; |
| 1288 | priv->wstats.qual.level = 0; |
| 1289 | priv->wstats.qual.noise = 0; |
| 1290 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID |
| 1291 | | IW_QUAL_LEVEL_INVALID |
| 1292 | | IW_QUAL_NOISE_INVALID; |
| 1293 | priv->wstats.miss.beacon = 0; |
| 1294 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1295 | |
| 1296 | return &priv->wstats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | } |
| 1298 | |
| 1299 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) |
| 1300 | { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1301 | if ((new_mtu < 68) || (new_mtu > 2312)) |
| 1302 | return -EINVAL; |
| 1303 | dev->mtu = new_mtu; |
| 1304 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | } |
| 1306 | |
| 1307 | static int atmel_set_mac_address(struct net_device *dev, void *p) |
| 1308 | { |
| 1309 | struct sockaddr *addr = p; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1310 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1311 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | return atmel_open(dev); |
| 1313 | } |
| 1314 | |
| 1315 | EXPORT_SYMBOL(atmel_open); |
| 1316 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1317 | int atmel_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1318 | { |
| 1319 | struct atmel_private *priv = netdev_priv(dev); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 1320 | int i, channel, err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1321 | |
| 1322 | /* any scheduled timer is no longer needed and might screw things up.. */ |
| 1323 | del_timer_sync(&priv->management_timer); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1324 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | /* Interrupts will not touch the card once in this state... */ |
| 1326 | priv->station_state = STATION_STATE_DOWN; |
| 1327 | |
| 1328 | if (priv->new_SSID_size) { |
| 1329 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); |
| 1330 | priv->SSID_size = priv->new_SSID_size; |
| 1331 | priv->new_SSID_size = 0; |
| 1332 | } |
| 1333 | priv->BSS_list_entries = 0; |
| 1334 | |
| 1335 | priv->AuthenticationRequestRetryCnt = 0; |
| 1336 | priv->AssociationRequestRetryCnt = 0; |
| 1337 | priv->ReAssociationRequestRetryCnt = 0; |
| 1338 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
| 1339 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; |
| 1340 | |
| 1341 | priv->site_survey_state = SITE_SURVEY_IDLE; |
| 1342 | priv->station_is_associated = 0; |
| 1343 | |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 1344 | err = reset_atmel_card(dev); |
| 1345 | if (err) |
| 1346 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | |
| 1348 | if (priv->config_reg_domain) { |
| 1349 | priv->reg_domain = priv->config_reg_domain; |
| 1350 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); |
| 1351 | } else { |
| 1352 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 1353 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | if (priv->reg_domain == channel_table[i].reg_domain) |
| 1355 | break; |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 1356 | if (i == ARRAY_SIZE(channel_table)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | priv->reg_domain = REG_DOMAIN_MKK1; |
| 1358 | printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1359 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1360 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
| 1363 | priv->channel = channel; |
| 1364 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1365 | /* this moves station_state on.... */ |
| 1366 | atmel_scan(priv, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
| 1368 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ |
| 1369 | return 0; |
| 1370 | } |
| 1371 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1372 | static int atmel_close(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | { |
| 1374 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1375 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1376 | /* Send event to userspace that we are disassociating */ |
| 1377 | if (priv->station_state == STATION_STATE_READY) { |
| 1378 | union iwreq_data wrqu; |
| 1379 | |
| 1380 | wrqu.data.length = 0; |
| 1381 | wrqu.data.flags = 0; |
| 1382 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 1383 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 1384 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 1385 | } |
| 1386 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | atmel_enter_state(priv, STATION_STATE_DOWN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1388 | |
| 1389 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | atmel_write16(dev, GCR, 0x0060); |
| 1391 | atmel_write16(dev, GCR, 0x0040); |
| 1392 | return 0; |
| 1393 | } |
| 1394 | |
| 1395 | static int atmel_validate_channel(struct atmel_private *priv, int channel) |
| 1396 | { |
| 1397 | /* check that channel is OK, if so return zero, |
| 1398 | else return suitable default channel */ |
| 1399 | int i; |
| 1400 | |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 1401 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | if (priv->reg_domain == channel_table[i].reg_domain) { |
| 1403 | if (channel >= channel_table[i].min && |
| 1404 | channel <= channel_table[i].max) |
| 1405 | return 0; |
| 1406 | else |
| 1407 | return channel_table[i].min; |
| 1408 | } |
| 1409 | return 0; |
| 1410 | } |
| 1411 | |
| 1412 | static int atmel_proc_output (char *buf, struct atmel_private *priv) |
| 1413 | { |
| 1414 | int i; |
| 1415 | char *p = buf; |
| 1416 | char *s, *r, *c; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1417 | |
| 1418 | p += sprintf(p, "Driver version:\t\t%d.%d\n", |
| 1419 | DRIVER_MAJOR, DRIVER_MINOR); |
| 1420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | if (priv->station_state != STATION_STATE_DOWN) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1422 | p += sprintf(p, "Firmware version:\t%d.%d build %d\n" |
| 1423 | "Firmware location:\t", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | priv->host_info.major_version, |
| 1425 | priv->host_info.minor_version, |
| 1426 | priv->host_info.build_version); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1427 | |
| 1428 | if (priv->card_type != CARD_TYPE_EEPROM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1429 | p += sprintf(p, "on card\n"); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1430 | else if (priv->firmware) |
| 1431 | p += sprintf(p, "%s loaded by host\n", |
| 1432 | priv->firmware_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1434 | p += sprintf(p, "%s loaded by hotplug\n", |
| 1435 | priv->firmware_id); |
| 1436 | |
| 1437 | switch (priv->card_type) { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1438 | case CARD_TYPE_PARALLEL_FLASH: |
| 1439 | c = "Parallel flash"; |
| 1440 | break; |
| 1441 | case CARD_TYPE_SPI_FLASH: |
| 1442 | c = "SPI flash\n"; |
| 1443 | break; |
| 1444 | case CARD_TYPE_EEPROM: |
| 1445 | c = "EEPROM"; |
| 1446 | break; |
| 1447 | default: |
| 1448 | c = "<unknown>"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | } |
| 1450 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | r = "<unknown>"; |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 1452 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | if (priv->reg_domain == channel_table[i].reg_domain) |
| 1454 | r = channel_table[i].name; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1455 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | p += sprintf(p, "MAC memory type:\t%s\n", c); |
| 1457 | p += sprintf(p, "Regulatory domain:\t%s\n", r); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1458 | p += sprintf(p, "Host CRC checking:\t%s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | priv->do_rx_crc ? "On" : "Off"); |
| 1460 | p += sprintf(p, "WPA-capable firmware:\t%s\n", |
| 1461 | priv->use_wpa ? "Yes" : "No"); |
| 1462 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1463 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1464 | switch (priv->station_state) { |
| 1465 | case STATION_STATE_SCANNING: |
| 1466 | s = "Scanning"; |
| 1467 | break; |
| 1468 | case STATION_STATE_JOINNING: |
| 1469 | s = "Joining"; |
| 1470 | break; |
| 1471 | case STATION_STATE_AUTHENTICATING: |
| 1472 | s = "Authenticating"; |
| 1473 | break; |
| 1474 | case STATION_STATE_ASSOCIATING: |
| 1475 | s = "Associating"; |
| 1476 | break; |
| 1477 | case STATION_STATE_READY: |
| 1478 | s = "Ready"; |
| 1479 | break; |
| 1480 | case STATION_STATE_REASSOCIATING: |
| 1481 | s = "Reassociating"; |
| 1482 | break; |
| 1483 | case STATION_STATE_MGMT_ERROR: |
| 1484 | s = "Management error"; |
| 1485 | break; |
| 1486 | case STATION_STATE_DOWN: |
| 1487 | s = "Down"; |
| 1488 | break; |
| 1489 | default: |
| 1490 | s = "<unknown>"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1492 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1493 | p += sprintf(p, "Current state:\t\t%s\n", s); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1494 | return p - buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | } |
| 1496 | |
| 1497 | static int atmel_read_proc(char *page, char **start, off_t off, |
| 1498 | int count, int *eof, void *data) |
| 1499 | { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1500 | struct atmel_private *priv = data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | int len = atmel_proc_output (page, priv); |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1502 | if (len <= off+count) |
| 1503 | *eof = 1; |
| 1504 | *start = page + off; |
| 1505 | len -= off; |
| 1506 | if (len > count) |
| 1507 | len = count; |
| 1508 | if (len < 0) |
| 1509 | len = 0; |
| 1510 | return len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | } |
| 1512 | |
Stephen Hemminger | 824f1df | 2009-03-20 19:36:27 +0000 | [diff] [blame] | 1513 | static const struct net_device_ops atmel_netdev_ops = { |
| 1514 | .ndo_open = atmel_open, |
| 1515 | .ndo_stop = atmel_close, |
| 1516 | .ndo_change_mtu = atmel_change_mtu, |
| 1517 | .ndo_set_mac_address = atmel_set_mac_address, |
| 1518 | .ndo_start_xmit = start_tx, |
| 1519 | .ndo_do_ioctl = atmel_ioctl, |
Stephen Hemminger | 824f1df | 2009-03-20 19:36:27 +0000 | [diff] [blame] | 1520 | .ndo_validate_addr = eth_validate_addr, |
| 1521 | }; |
| 1522 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1523 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
| 1524 | const AtmelFWType fw_type, |
| 1525 | struct device *sys_dev, |
| 1526 | int (*card_present)(void *), void *card) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | { |
Christophe Lucas | 5bc4c36 | 2005-11-12 21:58:53 +0300 | [diff] [blame] | 1528 | struct proc_dir_entry *ent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | struct net_device *dev; |
| 1530 | struct atmel_private *priv; |
| 1531 | int rc; |
| 1532 | |
| 1533 | /* Create the network device object. */ |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1534 | dev = alloc_etherdev(sizeof(*priv)); |
Joe Perches | 41de8d4 | 2012-01-29 13:47:52 +0000 | [diff] [blame] | 1535 | if (!dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1536 | return NULL; |
Joe Perches | 41de8d4 | 2012-01-29 13:47:52 +0000 | [diff] [blame] | 1537 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | if (dev_alloc_name(dev, dev->name) < 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1539 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | goto err_out_free; |
| 1541 | } |
| 1542 | |
| 1543 | priv = netdev_priv(dev); |
| 1544 | priv->dev = dev; |
| 1545 | priv->sys_dev = sys_dev; |
| 1546 | priv->present_callback = card_present; |
| 1547 | priv->card = card; |
| 1548 | priv->firmware = NULL; |
| 1549 | priv->firmware_id[0] = '\0'; |
| 1550 | priv->firmware_type = fw_type; |
| 1551 | if (firmware) /* module parameter */ |
| 1552 | strcpy(priv->firmware_id, firmware); |
| 1553 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; |
| 1554 | priv->station_state = STATION_STATE_DOWN; |
| 1555 | priv->do_rx_crc = 0; |
| 1556 | /* For PCMCIA cards, some chips need CRC, some don't |
| 1557 | so we have to probe. */ |
| 1558 | if (priv->bus_type == BUS_TYPE_PCCARD) { |
| 1559 | priv->probe_crc = 1; |
| 1560 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; |
| 1561 | } else |
| 1562 | priv->probe_crc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1563 | priv->last_qual = jiffies; |
| 1564 | priv->last_beacon_timestamp = 0; |
| 1565 | memset(priv->frag_source, 0xff, sizeof(priv->frag_source)); |
| 1566 | memset(priv->BSSID, 0, 6); |
| 1567 | priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */ |
| 1568 | priv->station_was_associated = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1569 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1570 | priv->last_survey = jiffies; |
| 1571 | priv->preamble = LONG_PREAMBLE; |
| 1572 | priv->operating_mode = IW_MODE_INFRA; |
| 1573 | priv->connect_to_any_BSS = 0; |
| 1574 | priv->config_reg_domain = 0; |
| 1575 | priv->reg_domain = 0; |
| 1576 | priv->tx_rate = 3; |
| 1577 | priv->auto_tx_rate = 1; |
| 1578 | priv->channel = 4; |
| 1579 | priv->power_mode = 0; |
| 1580 | priv->SSID[0] = '\0'; |
| 1581 | priv->SSID_size = 0; |
| 1582 | priv->new_SSID_size = 0; |
| 1583 | priv->frag_threshold = 2346; |
| 1584 | priv->rts_threshold = 2347; |
| 1585 | priv->short_retry = 7; |
| 1586 | priv->long_retry = 4; |
| 1587 | |
| 1588 | priv->wep_is_on = 0; |
| 1589 | priv->default_key = 0; |
| 1590 | priv->encryption_level = 0; |
| 1591 | priv->exclude_unencrypted = 0; |
| 1592 | priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
| 1593 | priv->use_wpa = 0; |
| 1594 | memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); |
| 1595 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); |
| 1596 | |
| 1597 | priv->default_beacon_period = priv->beacon_period = 100; |
| 1598 | priv->listen_interval = 1; |
| 1599 | |
| 1600 | init_timer(&priv->management_timer); |
| 1601 | spin_lock_init(&priv->irqlock); |
| 1602 | spin_lock_init(&priv->timerlock); |
| 1603 | priv->management_timer.function = atmel_management_timer; |
| 1604 | priv->management_timer.data = (unsigned long) dev; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1605 | |
Stephen Hemminger | 824f1df | 2009-03-20 19:36:27 +0000 | [diff] [blame] | 1606 | dev->netdev_ops = &atmel_netdev_ops; |
| 1607 | dev->wireless_handlers = &atmel_handler_def; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1608 | dev->irq = irq; |
| 1609 | dev->base_addr = port; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1610 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1611 | SET_NETDEV_DEV(dev, sys_dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1612 | |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 1613 | if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1614 | printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | goto err_out_free; |
| 1616 | } |
| 1617 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1618 | if (!request_region(dev->base_addr, 32, |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1619 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1620 | goto err_out_irq; |
| 1621 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1622 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | if (register_netdev(dev)) |
| 1624 | goto err_out_res; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1625 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1626 | if (!probe_atmel_card(dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | unregister_netdev(dev); |
| 1628 | goto err_out_res; |
| 1629 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1630 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | netif_carrier_off(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1632 | |
Christophe Lucas | 5bc4c36 | 2005-11-12 21:58:53 +0300 | [diff] [blame] | 1633 | ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); |
| 1634 | if (!ent) |
| 1635 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1636 | |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1637 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", |
| 1638 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | return dev; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1641 | |
| 1642 | err_out_res: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1643 | release_region(dev->base_addr, 32); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1644 | err_out_irq: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | free_irq(dev->irq, dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1646 | err_out_free: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | free_netdev(dev); |
| 1648 | return NULL; |
| 1649 | } |
| 1650 | |
| 1651 | EXPORT_SYMBOL(init_atmel_card); |
| 1652 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1653 | void stop_atmel_card(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | { |
| 1655 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1657 | /* put a brick on it... */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1658 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | atmel_write16(dev, GCR, 0x0060); |
| 1660 | atmel_write16(dev, GCR, 0x0040); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1661 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | del_timer_sync(&priv->management_timer); |
| 1663 | unregister_netdev(dev); |
| 1664 | remove_proc_entry("driver/atmel", NULL); |
| 1665 | free_irq(dev->irq, dev); |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 1666 | kfree(priv->firmware); |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1667 | release_region(dev->base_addr, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | free_netdev(dev); |
| 1669 | } |
| 1670 | |
| 1671 | EXPORT_SYMBOL(stop_atmel_card); |
| 1672 | |
| 1673 | static int atmel_set_essid(struct net_device *dev, |
| 1674 | struct iw_request_info *info, |
| 1675 | struct iw_point *dwrq, |
| 1676 | char *extra) |
| 1677 | { |
| 1678 | struct atmel_private *priv = netdev_priv(dev); |
| 1679 | |
| 1680 | /* Check if we asked for `any' */ |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1681 | if (dwrq->flags == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | priv->connect_to_any_BSS = 1; |
| 1683 | } else { |
| 1684 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
| 1685 | |
| 1686 | priv->connect_to_any_BSS = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1687 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | /* Check the size of the string */ |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 1689 | if (dwrq->length > MAX_SSID_LENGTH) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1690 | return -E2BIG; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | if (index != 0) |
| 1692 | return -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1693 | |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 1694 | memcpy(priv->new_SSID, extra, dwrq->length); |
| 1695 | priv->new_SSID_size = dwrq->length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | } |
| 1697 | |
| 1698 | return -EINPROGRESS; |
| 1699 | } |
| 1700 | |
| 1701 | static int atmel_get_essid(struct net_device *dev, |
| 1702 | struct iw_request_info *info, |
| 1703 | struct iw_point *dwrq, |
| 1704 | char *extra) |
| 1705 | { |
| 1706 | struct atmel_private *priv = netdev_priv(dev); |
| 1707 | |
| 1708 | /* Get the current SSID */ |
| 1709 | if (priv->new_SSID_size != 0) { |
| 1710 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); |
Dan Williams | d6a13a2 | 2006-01-12 15:00:58 -0500 | [diff] [blame] | 1711 | dwrq->length = priv->new_SSID_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1712 | } else { |
| 1713 | memcpy(extra, priv->SSID, priv->SSID_size); |
Dan Williams | d6a13a2 | 2006-01-12 15:00:58 -0500 | [diff] [blame] | 1714 | dwrq->length = priv->SSID_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
| 1718 | |
| 1719 | return 0; |
| 1720 | } |
| 1721 | |
| 1722 | static int atmel_get_wap(struct net_device *dev, |
| 1723 | struct iw_request_info *info, |
| 1724 | struct sockaddr *awrq, |
| 1725 | char *extra) |
| 1726 | { |
| 1727 | struct atmel_private *priv = netdev_priv(dev); |
| 1728 | memcpy(awrq->sa_data, priv->CurrentBSSID, 6); |
| 1729 | awrq->sa_family = ARPHRD_ETHER; |
| 1730 | |
| 1731 | return 0; |
| 1732 | } |
| 1733 | |
| 1734 | static int atmel_set_encode(struct net_device *dev, |
| 1735 | struct iw_request_info *info, |
| 1736 | struct iw_point *dwrq, |
| 1737 | char *extra) |
| 1738 | { |
| 1739 | struct atmel_private *priv = netdev_priv(dev); |
| 1740 | |
| 1741 | /* Basic checking: do we have a key to set ? |
| 1742 | * Note : with the new API, it's impossible to get a NULL pointer. |
| 1743 | * Therefore, we need to check a key size == 0 instead. |
| 1744 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag |
| 1745 | * when no key is present (only change flags), but older versions |
| 1746 | * don't do it. - Jean II */ |
| 1747 | if (dwrq->length > 0) { |
| 1748 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
| 1749 | int current_index = priv->default_key; |
| 1750 | /* Check the size of the key */ |
| 1751 | if (dwrq->length > 13) { |
| 1752 | return -EINVAL; |
| 1753 | } |
| 1754 | /* Check the index (none -> use current) */ |
| 1755 | if (index < 0 || index >= 4) |
| 1756 | index = current_index; |
| 1757 | else |
| 1758 | priv->default_key = index; |
| 1759 | /* Set the length */ |
| 1760 | if (dwrq->length > 5) |
| 1761 | priv->wep_key_len[index] = 13; |
| 1762 | else |
| 1763 | if (dwrq->length > 0) |
| 1764 | priv->wep_key_len[index] = 5; |
| 1765 | else |
| 1766 | /* Disable the key */ |
| 1767 | priv->wep_key_len[index] = 0; |
| 1768 | /* Check if the key is not marked as invalid */ |
Dmitry Torokhov | 5c877fe | 2006-10-08 00:14:30 -0400 | [diff] [blame] | 1769 | if (!(dwrq->flags & IW_ENCODE_NOKEY)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | /* Cleanup */ |
| 1771 | memset(priv->wep_keys[index], 0, 13); |
| 1772 | /* Copy the key in the driver */ |
| 1773 | memcpy(priv->wep_keys[index], extra, dwrq->length); |
| 1774 | } |
| 1775 | /* WE specify that if a valid key is set, encryption |
| 1776 | * should be enabled (user may turn it off later) |
| 1777 | * This is also how "iwconfig ethX key on" works */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1778 | if (index == current_index && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1779 | priv->wep_key_len[index] > 0) { |
| 1780 | priv->wep_is_on = 1; |
| 1781 | priv->exclude_unencrypted = 1; |
| 1782 | if (priv->wep_key_len[index] > 5) { |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1783 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | priv->encryption_level = 2; |
| 1785 | } else { |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1786 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | priv->encryption_level = 1; |
| 1788 | } |
| 1789 | } |
| 1790 | } else { |
| 1791 | /* Do we want to just set the transmit key index ? */ |
| 1792 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1793 | if (index >= 0 && index < 4) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | priv->default_key = index; |
| 1795 | } else |
| 1796 | /* Don't complain if only change the mode */ |
Jeff Garzik | 93a3b60 | 2007-11-23 21:50:20 -0500 | [diff] [blame] | 1797 | if (!(dwrq->flags & IW_ENCODE_MODE)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | } |
| 1800 | /* Read the flags */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1801 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | priv->wep_is_on = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1803 | priv->encryption_level = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
| 1805 | } else { |
| 1806 | priv->wep_is_on = 1; |
| 1807 | if (priv->wep_key_len[priv->default_key] > 5) { |
| 1808 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
| 1809 | priv->encryption_level = 2; |
| 1810 | } else { |
| 1811 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
| 1812 | priv->encryption_level = 1; |
| 1813 | } |
| 1814 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1815 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1816 | priv->exclude_unencrypted = 1; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1817 | if (dwrq->flags & IW_ENCODE_OPEN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1818 | priv->exclude_unencrypted = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1819 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1820 | return -EINPROGRESS; /* Call commit handler */ |
| 1821 | } |
| 1822 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | static int atmel_get_encode(struct net_device *dev, |
| 1824 | struct iw_request_info *info, |
| 1825 | struct iw_point *dwrq, |
| 1826 | char *extra) |
| 1827 | { |
| 1828 | struct atmel_private *priv = netdev_priv(dev); |
| 1829 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1830 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1831 | if (!priv->wep_is_on) |
| 1832 | dwrq->flags = IW_ENCODE_DISABLED; |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1833 | else { |
| 1834 | if (priv->exclude_unencrypted) |
| 1835 | dwrq->flags = IW_ENCODE_RESTRICTED; |
| 1836 | else |
| 1837 | dwrq->flags = IW_ENCODE_OPEN; |
| 1838 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | /* Which key do we want ? -1 -> tx index */ |
| 1840 | if (index < 0 || index >= 4) |
| 1841 | index = priv->default_key; |
| 1842 | dwrq->flags |= index + 1; |
| 1843 | /* Copy the key to the user buffer */ |
| 1844 | dwrq->length = priv->wep_key_len[index]; |
| 1845 | if (dwrq->length > 16) { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 1846 | dwrq->length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1847 | } else { |
| 1848 | memset(extra, 0, 16); |
| 1849 | memcpy(extra, priv->wep_keys[index], dwrq->length); |
| 1850 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | return 0; |
| 1853 | } |
| 1854 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1855 | static int atmel_set_encodeext(struct net_device *dev, |
| 1856 | struct iw_request_info *info, |
| 1857 | union iwreq_data *wrqu, |
| 1858 | char *extra) |
| 1859 | { |
| 1860 | struct atmel_private *priv = netdev_priv(dev); |
| 1861 | struct iw_point *encoding = &wrqu->encoding; |
| 1862 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
Dan Williams | 0d46750 | 2006-02-05 17:52:21 -0500 | [diff] [blame] | 1863 | int idx, key_len, alg = ext->alg, set_key = 1; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1864 | |
| 1865 | /* Determine and validate the key index */ |
| 1866 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 1867 | if (idx) { |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 1868 | if (idx < 1 || idx > 4) |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1869 | return -EINVAL; |
| 1870 | idx--; |
| 1871 | } else |
| 1872 | idx = priv->default_key; |
| 1873 | |
Dan Williams | 0d46750 | 2006-02-05 17:52:21 -0500 | [diff] [blame] | 1874 | if (encoding->flags & IW_ENCODE_DISABLED) |
| 1875 | alg = IW_ENCODE_ALG_NONE; |
| 1876 | |
| 1877 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
| 1878 | priv->default_key = idx; |
| 1879 | set_key = ext->key_len > 0 ? 1 : 0; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1880 | } |
| 1881 | |
Dan Williams | 0d46750 | 2006-02-05 17:52:21 -0500 | [diff] [blame] | 1882 | if (set_key) { |
| 1883 | /* Set the requested key first */ |
| 1884 | switch (alg) { |
| 1885 | case IW_ENCODE_ALG_NONE: |
| 1886 | priv->wep_is_on = 0; |
| 1887 | priv->encryption_level = 0; |
| 1888 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
| 1889 | break; |
| 1890 | case IW_ENCODE_ALG_WEP: |
| 1891 | if (ext->key_len > 5) { |
| 1892 | priv->wep_key_len[idx] = 13; |
| 1893 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
| 1894 | priv->encryption_level = 2; |
| 1895 | } else if (ext->key_len > 0) { |
| 1896 | priv->wep_key_len[idx] = 5; |
| 1897 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
| 1898 | priv->encryption_level = 1; |
| 1899 | } else { |
| 1900 | return -EINVAL; |
| 1901 | } |
| 1902 | priv->wep_is_on = 1; |
| 1903 | memset(priv->wep_keys[idx], 0, 13); |
| 1904 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); |
| 1905 | memcpy(priv->wep_keys[idx], ext->key, key_len); |
| 1906 | break; |
| 1907 | default: |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1908 | return -EINVAL; |
| 1909 | } |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1910 | } |
| 1911 | |
| 1912 | return -EINPROGRESS; |
| 1913 | } |
| 1914 | |
| 1915 | static int atmel_get_encodeext(struct net_device *dev, |
| 1916 | struct iw_request_info *info, |
| 1917 | union iwreq_data *wrqu, |
| 1918 | char *extra) |
| 1919 | { |
| 1920 | struct atmel_private *priv = netdev_priv(dev); |
| 1921 | struct iw_point *encoding = &wrqu->encoding; |
| 1922 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
| 1923 | int idx, max_key_len; |
| 1924 | |
| 1925 | max_key_len = encoding->length - sizeof(*ext); |
| 1926 | if (max_key_len < 0) |
| 1927 | return -EINVAL; |
| 1928 | |
| 1929 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 1930 | if (idx) { |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 1931 | if (idx < 1 || idx > 4) |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1932 | return -EINVAL; |
| 1933 | idx--; |
| 1934 | } else |
| 1935 | idx = priv->default_key; |
| 1936 | |
| 1937 | encoding->flags = idx + 1; |
| 1938 | memset(ext, 0, sizeof(*ext)); |
Dmitry Torokhov | 5c877fe | 2006-10-08 00:14:30 -0400 | [diff] [blame] | 1939 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1940 | if (!priv->wep_is_on) { |
| 1941 | ext->alg = IW_ENCODE_ALG_NONE; |
| 1942 | ext->key_len = 0; |
| 1943 | encoding->flags |= IW_ENCODE_DISABLED; |
| 1944 | } else { |
| 1945 | if (priv->encryption_level > 0) |
| 1946 | ext->alg = IW_ENCODE_ALG_WEP; |
| 1947 | else |
| 1948 | return -EINVAL; |
| 1949 | |
| 1950 | ext->key_len = priv->wep_key_len[idx]; |
| 1951 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); |
| 1952 | encoding->flags |= IW_ENCODE_ENABLED; |
| 1953 | } |
| 1954 | |
| 1955 | return 0; |
| 1956 | } |
| 1957 | |
| 1958 | static int atmel_set_auth(struct net_device *dev, |
| 1959 | struct iw_request_info *info, |
| 1960 | union iwreq_data *wrqu, char *extra) |
| 1961 | { |
| 1962 | struct atmel_private *priv = netdev_priv(dev); |
| 1963 | struct iw_param *param = &wrqu->param; |
| 1964 | |
| 1965 | switch (param->flags & IW_AUTH_INDEX) { |
| 1966 | case IW_AUTH_WPA_VERSION: |
| 1967 | case IW_AUTH_CIPHER_PAIRWISE: |
| 1968 | case IW_AUTH_CIPHER_GROUP: |
| 1969 | case IW_AUTH_KEY_MGMT: |
| 1970 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: |
| 1971 | case IW_AUTH_PRIVACY_INVOKED: |
| 1972 | /* |
| 1973 | * atmel does not use these parameters |
| 1974 | */ |
| 1975 | break; |
| 1976 | |
| 1977 | case IW_AUTH_DROP_UNENCRYPTED: |
| 1978 | priv->exclude_unencrypted = param->value ? 1 : 0; |
| 1979 | break; |
| 1980 | |
| 1981 | case IW_AUTH_80211_AUTH_ALG: { |
| 1982 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { |
| 1983 | priv->exclude_unencrypted = 1; |
| 1984 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { |
| 1985 | priv->exclude_unencrypted = 0; |
| 1986 | } else |
| 1987 | return -EINVAL; |
| 1988 | break; |
| 1989 | } |
| 1990 | |
| 1991 | case IW_AUTH_WPA_ENABLED: |
| 1992 | /* Silently accept disable of WPA */ |
| 1993 | if (param->value > 0) |
| 1994 | return -EOPNOTSUPP; |
| 1995 | break; |
| 1996 | |
| 1997 | default: |
| 1998 | return -EOPNOTSUPP; |
| 1999 | } |
| 2000 | return -EINPROGRESS; |
| 2001 | } |
| 2002 | |
| 2003 | static int atmel_get_auth(struct net_device *dev, |
| 2004 | struct iw_request_info *info, |
| 2005 | union iwreq_data *wrqu, char *extra) |
| 2006 | { |
| 2007 | struct atmel_private *priv = netdev_priv(dev); |
| 2008 | struct iw_param *param = &wrqu->param; |
| 2009 | |
| 2010 | switch (param->flags & IW_AUTH_INDEX) { |
| 2011 | case IW_AUTH_DROP_UNENCRYPTED: |
| 2012 | param->value = priv->exclude_unencrypted; |
| 2013 | break; |
| 2014 | |
| 2015 | case IW_AUTH_80211_AUTH_ALG: |
| 2016 | if (priv->exclude_unencrypted == 1) |
| 2017 | param->value = IW_AUTH_ALG_SHARED_KEY; |
| 2018 | else |
| 2019 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; |
| 2020 | break; |
| 2021 | |
| 2022 | case IW_AUTH_WPA_ENABLED: |
| 2023 | param->value = 0; |
| 2024 | break; |
| 2025 | |
| 2026 | default: |
| 2027 | return -EOPNOTSUPP; |
| 2028 | } |
| 2029 | return 0; |
| 2030 | } |
| 2031 | |
| 2032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2033 | static int atmel_get_name(struct net_device *dev, |
| 2034 | struct iw_request_info *info, |
| 2035 | char *cwrq, |
| 2036 | char *extra) |
| 2037 | { |
| 2038 | strcpy(cwrq, "IEEE 802.11-DS"); |
| 2039 | return 0; |
| 2040 | } |
| 2041 | |
| 2042 | static int atmel_set_rate(struct net_device *dev, |
| 2043 | struct iw_request_info *info, |
| 2044 | struct iw_param *vwrq, |
| 2045 | char *extra) |
| 2046 | { |
| 2047 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2048 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2049 | if (vwrq->fixed == 0) { |
| 2050 | priv->tx_rate = 3; |
| 2051 | priv->auto_tx_rate = 1; |
| 2052 | } else { |
| 2053 | priv->auto_tx_rate = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2054 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2055 | /* Which type of value ? */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2056 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2057 | /* Setting by rate index */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2058 | priv->tx_rate = vwrq->value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2059 | } else { |
| 2060 | /* Setting by frequency value */ |
| 2061 | switch (vwrq->value) { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 2062 | case 1000000: |
| 2063 | priv->tx_rate = 0; |
| 2064 | break; |
| 2065 | case 2000000: |
| 2066 | priv->tx_rate = 1; |
| 2067 | break; |
| 2068 | case 5500000: |
| 2069 | priv->tx_rate = 2; |
| 2070 | break; |
| 2071 | case 11000000: |
| 2072 | priv->tx_rate = 3; |
| 2073 | break; |
| 2074 | default: |
| 2075 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2076 | } |
| 2077 | } |
| 2078 | } |
| 2079 | |
| 2080 | return -EINPROGRESS; |
| 2081 | } |
| 2082 | |
| 2083 | static int atmel_set_mode(struct net_device *dev, |
| 2084 | struct iw_request_info *info, |
| 2085 | __u32 *uwrq, |
| 2086 | char *extra) |
| 2087 | { |
| 2088 | struct atmel_private *priv = netdev_priv(dev); |
| 2089 | |
| 2090 | if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA) |
| 2091 | return -EINVAL; |
| 2092 | |
| 2093 | priv->operating_mode = *uwrq; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2094 | return -EINPROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2095 | } |
| 2096 | |
| 2097 | static int atmel_get_mode(struct net_device *dev, |
| 2098 | struct iw_request_info *info, |
| 2099 | __u32 *uwrq, |
| 2100 | char *extra) |
| 2101 | { |
| 2102 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2104 | *uwrq = priv->operating_mode; |
| 2105 | return 0; |
| 2106 | } |
| 2107 | |
| 2108 | static int atmel_get_rate(struct net_device *dev, |
| 2109 | struct iw_request_info *info, |
| 2110 | struct iw_param *vwrq, |
| 2111 | char *extra) |
| 2112 | { |
| 2113 | struct atmel_private *priv = netdev_priv(dev); |
| 2114 | |
| 2115 | if (priv->auto_tx_rate) { |
| 2116 | vwrq->fixed = 0; |
| 2117 | vwrq->value = 11000000; |
| 2118 | } else { |
| 2119 | vwrq->fixed = 1; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 2120 | switch (priv->tx_rate) { |
| 2121 | case 0: |
| 2122 | vwrq->value = 1000000; |
| 2123 | break; |
| 2124 | case 1: |
| 2125 | vwrq->value = 2000000; |
| 2126 | break; |
| 2127 | case 2: |
| 2128 | vwrq->value = 5500000; |
| 2129 | break; |
| 2130 | case 3: |
| 2131 | vwrq->value = 11000000; |
| 2132 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2133 | } |
| 2134 | } |
| 2135 | return 0; |
| 2136 | } |
| 2137 | |
| 2138 | static int atmel_set_power(struct net_device *dev, |
| 2139 | struct iw_request_info *info, |
| 2140 | struct iw_param *vwrq, |
| 2141 | char *extra) |
| 2142 | { |
| 2143 | struct atmel_private *priv = netdev_priv(dev); |
| 2144 | priv->power_mode = vwrq->disabled ? 0 : 1; |
| 2145 | return -EINPROGRESS; |
| 2146 | } |
| 2147 | |
| 2148 | static int atmel_get_power(struct net_device *dev, |
| 2149 | struct iw_request_info *info, |
| 2150 | struct iw_param *vwrq, |
| 2151 | char *extra) |
| 2152 | { |
| 2153 | struct atmel_private *priv = netdev_priv(dev); |
| 2154 | vwrq->disabled = priv->power_mode ? 0 : 1; |
| 2155 | vwrq->flags = IW_POWER_ON; |
| 2156 | return 0; |
| 2157 | } |
| 2158 | |
| 2159 | static int atmel_set_retry(struct net_device *dev, |
| 2160 | struct iw_request_info *info, |
| 2161 | struct iw_param *vwrq, |
| 2162 | char *extra) |
| 2163 | { |
| 2164 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2165 | |
| 2166 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 2167 | if (vwrq->flags & IW_RETRY_LONG) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2168 | priv->long_retry = vwrq->value; |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 2169 | else if (vwrq->flags & IW_RETRY_SHORT) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2170 | priv->short_retry = vwrq->value; |
| 2171 | else { |
| 2172 | /* No modifier : set both */ |
| 2173 | priv->long_retry = vwrq->value; |
| 2174 | priv->short_retry = vwrq->value; |
| 2175 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2176 | return -EINPROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2177 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | return -EINVAL; |
| 2180 | } |
| 2181 | |
| 2182 | static int atmel_get_retry(struct net_device *dev, |
| 2183 | struct iw_request_info *info, |
| 2184 | struct iw_param *vwrq, |
| 2185 | char *extra) |
| 2186 | { |
| 2187 | struct atmel_private *priv = netdev_priv(dev); |
| 2188 | |
| 2189 | vwrq->disabled = 0; /* Can't be disabled */ |
| 2190 | |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 2191 | /* Note : by default, display the short retry number */ |
| 2192 | if (vwrq->flags & IW_RETRY_LONG) { |
| 2193 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2194 | vwrq->value = priv->long_retry; |
| 2195 | } else { |
| 2196 | vwrq->flags = IW_RETRY_LIMIT; |
| 2197 | vwrq->value = priv->short_retry; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2198 | if (priv->long_retry != priv->short_retry) |
Jean Tourrilhes | 6a484db | 2006-08-29 17:59:03 -0700 | [diff] [blame] | 2199 | vwrq->flags |= IW_RETRY_SHORT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2200 | } |
| 2201 | |
| 2202 | return 0; |
| 2203 | } |
| 2204 | |
| 2205 | static int atmel_set_rts(struct net_device *dev, |
| 2206 | struct iw_request_info *info, |
| 2207 | struct iw_param *vwrq, |
| 2208 | char *extra) |
| 2209 | { |
| 2210 | struct atmel_private *priv = netdev_priv(dev); |
| 2211 | int rthr = vwrq->value; |
| 2212 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2213 | if (vwrq->disabled) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2214 | rthr = 2347; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2215 | if ((rthr < 0) || (rthr > 2347)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2216 | return -EINVAL; |
| 2217 | } |
| 2218 | priv->rts_threshold = rthr; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2219 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2220 | return -EINPROGRESS; /* Call commit handler */ |
| 2221 | } |
| 2222 | |
| 2223 | static int atmel_get_rts(struct net_device *dev, |
| 2224 | struct iw_request_info *info, |
| 2225 | struct iw_param *vwrq, |
| 2226 | char *extra) |
| 2227 | { |
| 2228 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2230 | vwrq->value = priv->rts_threshold; |
| 2231 | vwrq->disabled = (vwrq->value >= 2347); |
| 2232 | vwrq->fixed = 1; |
| 2233 | |
| 2234 | return 0; |
| 2235 | } |
| 2236 | |
| 2237 | static int atmel_set_frag(struct net_device *dev, |
| 2238 | struct iw_request_info *info, |
| 2239 | struct iw_param *vwrq, |
| 2240 | char *extra) |
| 2241 | { |
| 2242 | struct atmel_private *priv = netdev_priv(dev); |
| 2243 | int fthr = vwrq->value; |
| 2244 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2245 | if (vwrq->disabled) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2246 | fthr = 2346; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2247 | if ((fthr < 256) || (fthr > 2346)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2248 | return -EINVAL; |
| 2249 | } |
| 2250 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ |
| 2251 | priv->frag_threshold = fthr; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2253 | return -EINPROGRESS; /* Call commit handler */ |
| 2254 | } |
| 2255 | |
| 2256 | static int atmel_get_frag(struct net_device *dev, |
| 2257 | struct iw_request_info *info, |
| 2258 | struct iw_param *vwrq, |
| 2259 | char *extra) |
| 2260 | { |
| 2261 | struct atmel_private *priv = netdev_priv(dev); |
| 2262 | |
| 2263 | vwrq->value = priv->frag_threshold; |
| 2264 | vwrq->disabled = (vwrq->value >= 2346); |
| 2265 | vwrq->fixed = 1; |
| 2266 | |
| 2267 | return 0; |
| 2268 | } |
| 2269 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2270 | static int atmel_set_freq(struct net_device *dev, |
| 2271 | struct iw_request_info *info, |
| 2272 | struct iw_freq *fwrq, |
| 2273 | char *extra) |
| 2274 | { |
| 2275 | struct atmel_private *priv = netdev_priv(dev); |
| 2276 | int rc = -EINPROGRESS; /* Call commit handler */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2277 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2278 | /* If setting by frequency, convert to a channel */ |
David Kilroy | 9ee677c | 2008-12-23 14:03:38 +0000 | [diff] [blame] | 2279 | if (fwrq->e == 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2280 | int f = fwrq->m / 100000; |
David Kilroy | 9ee677c | 2008-12-23 14:03:38 +0000 | [diff] [blame] | 2281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2282 | /* Hack to fall through... */ |
| 2283 | fwrq->e = 0; |
David Kilroy | 9ee677c | 2008-12-23 14:03:38 +0000 | [diff] [blame] | 2284 | fwrq->m = ieee80211_freq_to_dsss_chan(f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2285 | } |
| 2286 | /* Setting by channel number */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2287 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2288 | rc = -EOPNOTSUPP; |
| 2289 | else { |
| 2290 | int channel = fwrq->m; |
| 2291 | if (atmel_validate_channel(priv, channel) == 0) { |
| 2292 | priv->channel = channel; |
| 2293 | } else { |
| 2294 | rc = -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2295 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2296 | } |
| 2297 | return rc; |
| 2298 | } |
| 2299 | |
| 2300 | static int atmel_get_freq(struct net_device *dev, |
| 2301 | struct iw_request_info *info, |
| 2302 | struct iw_freq *fwrq, |
| 2303 | char *extra) |
| 2304 | { |
| 2305 | struct atmel_private *priv = netdev_priv(dev); |
| 2306 | |
| 2307 | fwrq->m = priv->channel; |
| 2308 | fwrq->e = 0; |
| 2309 | return 0; |
| 2310 | } |
| 2311 | |
| 2312 | static int atmel_set_scan(struct net_device *dev, |
| 2313 | struct iw_request_info *info, |
David Kilroy | 9930cce | 2008-09-13 12:22:05 +0100 | [diff] [blame] | 2314 | struct iw_point *dwrq, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2315 | char *extra) |
| 2316 | { |
| 2317 | struct atmel_private *priv = netdev_priv(dev); |
| 2318 | unsigned long flags; |
| 2319 | |
| 2320 | /* Note : you may have realised that, as this is a SET operation, |
| 2321 | * this is privileged and therefore a normal user can't |
| 2322 | * perform scanning. |
| 2323 | * This is not an error, while the device perform scanning, |
| 2324 | * traffic doesn't flow, so it's a perfect DoS... |
| 2325 | * Jean II */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2327 | if (priv->station_state == STATION_STATE_DOWN) |
| 2328 | return -EAGAIN; |
| 2329 | |
| 2330 | /* Timeout old surveys. */ |
S.Çağlar Onur | 6e33e30 | 2008-02-14 17:36:49 +0200 | [diff] [blame] | 2331 | if (time_after(jiffies, priv->last_survey + 20 * HZ)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2332 | priv->site_survey_state = SITE_SURVEY_IDLE; |
| 2333 | priv->last_survey = jiffies; |
| 2334 | |
| 2335 | /* Initiate a scan command */ |
| 2336 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) |
| 2337 | return -EBUSY; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2338 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2339 | del_timer_sync(&priv->management_timer); |
| 2340 | spin_lock_irqsave(&priv->irqlock, flags); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2341 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2342 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
| 2343 | priv->fast_scan = 0; |
| 2344 | atmel_scan(priv, 0); |
| 2345 | spin_unlock_irqrestore(&priv->irqlock, flags); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | return 0; |
| 2348 | } |
| 2349 | |
| 2350 | static int atmel_get_scan(struct net_device *dev, |
| 2351 | struct iw_request_info *info, |
| 2352 | struct iw_point *dwrq, |
| 2353 | char *extra) |
| 2354 | { |
| 2355 | struct atmel_private *priv = netdev_priv(dev); |
| 2356 | int i; |
| 2357 | char *current_ev = extra; |
| 2358 | struct iw_event iwe; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
| 2361 | return -EAGAIN; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2362 | |
| 2363 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2364 | iwe.cmd = SIOCGIWAP; |
| 2365 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; |
| 2366 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6); |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2367 | current_ev = iwe_stream_add_event(info, current_ev, |
| 2368 | extra + IW_SCAN_MAX_DATA, |
| 2369 | &iwe, IW_EV_ADDR_LEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | |
| 2371 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; |
| 2372 | if (iwe.u.data.length > 32) |
| 2373 | iwe.u.data.length = 32; |
| 2374 | iwe.cmd = SIOCGIWESSID; |
| 2375 | iwe.u.data.flags = 1; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2376 | current_ev = iwe_stream_add_point(info, current_ev, |
| 2377 | extra + IW_SCAN_MAX_DATA, |
| 2378 | &iwe, priv->BSSinfo[i].SSID); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2379 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | iwe.cmd = SIOCGIWMODE; |
| 2381 | iwe.u.mode = priv->BSSinfo[i].BSStype; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2382 | current_ev = iwe_stream_add_event(info, current_ev, |
| 2383 | extra + IW_SCAN_MAX_DATA, |
| 2384 | &iwe, IW_EV_UINT_LEN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2386 | iwe.cmd = SIOCGIWFREQ; |
| 2387 | iwe.u.freq.m = priv->BSSinfo[i].channel; |
| 2388 | iwe.u.freq.e = 0; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2389 | current_ev = iwe_stream_add_event(info, current_ev, |
| 2390 | extra + IW_SCAN_MAX_DATA, |
| 2391 | &iwe, IW_EV_FREQ_LEN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2392 | |
Holden Karau | 3b31dc3 | 2006-10-10 14:45:33 -0700 | [diff] [blame] | 2393 | /* Add quality statistics */ |
| 2394 | iwe.cmd = IWEVQUAL; |
| 2395 | iwe.u.qual.level = priv->BSSinfo[i].RSSI; |
| 2396 | iwe.u.qual.qual = iwe.u.qual.level; |
| 2397 | /* iwe.u.qual.noise = SOMETHING */ |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2398 | current_ev = iwe_stream_add_event(info, current_ev, |
| 2399 | extra + IW_SCAN_MAX_DATA, |
| 2400 | &iwe, IW_EV_QUAL_LEN); |
Holden Karau | 3b31dc3 | 2006-10-10 14:45:33 -0700 | [diff] [blame] | 2401 | |
| 2402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2403 | iwe.cmd = SIOCGIWENCODE; |
| 2404 | if (priv->BSSinfo[i].UsingWEP) |
| 2405 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 2406 | else |
| 2407 | iwe.u.data.flags = IW_ENCODE_DISABLED; |
| 2408 | iwe.u.data.length = 0; |
David S. Miller | ccc5805 | 2008-06-16 18:50:49 -0700 | [diff] [blame] | 2409 | current_ev = iwe_stream_add_point(info, current_ev, |
| 2410 | extra + IW_SCAN_MAX_DATA, |
| 2411 | &iwe, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2412 | } |
| 2413 | |
| 2414 | /* Length of data */ |
| 2415 | dwrq->length = (current_ev - extra); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2416 | dwrq->flags = 0; |
| 2417 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2418 | return 0; |
| 2419 | } |
| 2420 | |
| 2421 | static int atmel_get_range(struct net_device *dev, |
| 2422 | struct iw_request_info *info, |
| 2423 | struct iw_point *dwrq, |
| 2424 | char *extra) |
| 2425 | { |
| 2426 | struct atmel_private *priv = netdev_priv(dev); |
| 2427 | struct iw_range *range = (struct iw_range *) extra; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2428 | int k, i, j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2429 | |
| 2430 | dwrq->length = sizeof(struct iw_range); |
Alexey Dobriyan | f36be62 | 2005-11-08 00:41:48 +0300 | [diff] [blame] | 2431 | memset(range, 0, sizeof(struct iw_range)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2432 | range->min_nwid = 0x0000; |
| 2433 | range->max_nwid = 0x0000; |
| 2434 | range->num_channels = 0; |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 2435 | for (j = 0; j < ARRAY_SIZE(channel_table); j++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2436 | if (priv->reg_domain == channel_table[j].reg_domain) { |
| 2437 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; |
| 2438 | break; |
| 2439 | } |
| 2440 | if (range->num_channels != 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2441 | for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2442 | range->freq[k].i = i; /* List index */ |
David Kilroy | 9ee677c | 2008-12-23 14:03:38 +0000 | [diff] [blame] | 2443 | |
| 2444 | /* Values in MHz -> * 10^5 * 10 */ |
| 2445 | range->freq[k].m = (ieee80211_dsss_chan_to_freq(i) * |
| 2446 | 100000); |
| 2447 | range->freq[k++].e = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2448 | } |
| 2449 | range->num_frequency = k; |
| 2450 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2451 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2452 | range->max_qual.qual = 100; |
| 2453 | range->max_qual.level = 100; |
| 2454 | range->max_qual.noise = 0; |
| 2455 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2456 | |
| 2457 | range->avg_qual.qual = 50; |
| 2458 | range->avg_qual.level = 50; |
| 2459 | range->avg_qual.noise = 0; |
| 2460 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2461 | |
| 2462 | range->sensitivity = 0; |
| 2463 | |
| 2464 | range->bitrate[0] = 1000000; |
| 2465 | range->bitrate[1] = 2000000; |
| 2466 | range->bitrate[2] = 5500000; |
| 2467 | range->bitrate[3] = 11000000; |
| 2468 | range->num_bitrates = 4; |
| 2469 | |
| 2470 | range->min_rts = 0; |
| 2471 | range->max_rts = 2347; |
| 2472 | range->min_frag = 256; |
| 2473 | range->max_frag = 2346; |
| 2474 | |
| 2475 | range->encoding_size[0] = 5; |
| 2476 | range->encoding_size[1] = 13; |
| 2477 | range->num_encoding_sizes = 2; |
| 2478 | range->max_encoding_tokens = 4; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2479 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2480 | range->pmp_flags = IW_POWER_ON; |
| 2481 | range->pmt_flags = IW_POWER_ON; |
| 2482 | range->pm_capa = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2483 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2484 | range->we_version_source = WIRELESS_EXT; |
| 2485 | range->we_version_compiled = WIRELESS_EXT; |
| 2486 | range->retry_capa = IW_RETRY_LIMIT ; |
| 2487 | range->retry_flags = IW_RETRY_LIMIT; |
| 2488 | range->r_time_flags = 0; |
| 2489 | range->min_retry = 1; |
| 2490 | range->max_retry = 65535; |
| 2491 | |
| 2492 | return 0; |
| 2493 | } |
| 2494 | |
| 2495 | static int atmel_set_wap(struct net_device *dev, |
| 2496 | struct iw_request_info *info, |
| 2497 | struct sockaddr *awrq, |
| 2498 | char *extra) |
| 2499 | { |
| 2500 | struct atmel_private *priv = netdev_priv(dev); |
| 2501 | int i; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2502 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| 2503 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2504 | unsigned long flags; |
| 2505 | |
| 2506 | if (awrq->sa_family != ARPHRD_ETHER) |
| 2507 | return -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2508 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2509 | if (!memcmp(any, awrq->sa_data, 6) || |
| 2510 | !memcmp(off, awrq->sa_data, 6)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2511 | del_timer_sync(&priv->management_timer); |
| 2512 | spin_lock_irqsave(&priv->irqlock, flags); |
| 2513 | atmel_scan(priv, 1); |
| 2514 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 2515 | return 0; |
| 2516 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2517 | |
| 2518 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2519 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
| 2520 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { |
| 2521 | return -EINVAL; |
| 2522 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { |
| 2523 | return -EINVAL; |
| 2524 | } else { |
| 2525 | del_timer_sync(&priv->management_timer); |
| 2526 | spin_lock_irqsave(&priv->irqlock, flags); |
| 2527 | atmel_join_bss(priv, i); |
| 2528 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 2529 | return 0; |
| 2530 | } |
| 2531 | } |
| 2532 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2533 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2534 | return -EINVAL; |
| 2535 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | static int atmel_config_commit(struct net_device *dev, |
| 2538 | struct iw_request_info *info, /* NULL */ |
| 2539 | void *zwrq, /* NULL */ |
| 2540 | char *extra) /* NULL */ |
| 2541 | { |
| 2542 | return atmel_open(dev); |
| 2543 | } |
| 2544 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2545 | static const iw_handler atmel_handler[] = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2546 | { |
| 2547 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2548 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2549 | (iw_handler) NULL, /* SIOCSIWNWID */ |
| 2550 | (iw_handler) NULL, /* SIOCGIWNWID */ |
| 2551 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ |
| 2552 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ |
| 2553 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ |
| 2554 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2555 | (iw_handler) NULL, /* SIOCSIWSENS */ |
| 2556 | (iw_handler) NULL, /* SIOCGIWSENS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2557 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
| 2558 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ |
| 2559 | (iw_handler) NULL, /* SIOCSIWPRIV */ |
| 2560 | (iw_handler) NULL, /* SIOCGIWPRIV */ |
| 2561 | (iw_handler) NULL, /* SIOCSIWSTATS */ |
| 2562 | (iw_handler) NULL, /* SIOCGIWSTATS */ |
| 2563 | (iw_handler) NULL, /* SIOCSIWSPY */ |
| 2564 | (iw_handler) NULL, /* SIOCGIWSPY */ |
| 2565 | (iw_handler) NULL, /* -- hole -- */ |
| 2566 | (iw_handler) NULL, /* -- hole -- */ |
| 2567 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ |
| 2568 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ |
| 2569 | (iw_handler) NULL, /* -- hole -- */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2570 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2571 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
| 2572 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ |
| 2573 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ |
| 2574 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2575 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
| 2576 | (iw_handler) NULL, /* SIOCGIWNICKN */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2577 | (iw_handler) NULL, /* -- hole -- */ |
| 2578 | (iw_handler) NULL, /* -- hole -- */ |
| 2579 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ |
| 2580 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ |
| 2581 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ |
| 2582 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ |
| 2583 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ |
| 2584 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2585 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
| 2586 | (iw_handler) NULL, /* SIOCGIWTXPOW */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2587 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
| 2588 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ |
| 2589 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ |
| 2590 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ |
| 2591 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ |
| 2592 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2593 | (iw_handler) NULL, /* -- hole -- */ |
| 2594 | (iw_handler) NULL, /* -- hole -- */ |
| 2595 | (iw_handler) NULL, /* SIOCSIWGENIE */ |
| 2596 | (iw_handler) NULL, /* SIOCGIWGENIE */ |
| 2597 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ |
| 2598 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ |
| 2599 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ |
| 2600 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ |
| 2601 | (iw_handler) NULL, /* SIOCSIWPMKSA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2602 | }; |
| 2603 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2604 | static const iw_handler atmel_private_handler[] = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2605 | { |
| 2606 | NULL, /* SIOCIWFIRSTPRIV */ |
| 2607 | }; |
| 2608 | |
| 2609 | typedef struct atmel_priv_ioctl { |
| 2610 | char id[32]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2611 | unsigned char __user *data; |
| 2612 | unsigned short len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2613 | } atmel_priv_ioctl; |
| 2614 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2615 | #define ATMELFWL SIOCIWFIRSTPRIV |
| 2616 | #define ATMELIDIFC ATMELFWL + 1 |
| 2617 | #define ATMELRD ATMELFWL + 2 |
| 2618 | #define ATMELMAGIC 0x51807 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2619 | #define REGDOMAINSZ 20 |
| 2620 | |
| 2621 | static const struct iw_priv_args atmel_private_args[] = { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2622 | { |
| 2623 | .cmd = ATMELFWL, |
| 2624 | .set_args = IW_PRIV_TYPE_BYTE |
| 2625 | | IW_PRIV_SIZE_FIXED |
| 2626 | | sizeof (atmel_priv_ioctl), |
| 2627 | .get_args = IW_PRIV_TYPE_NONE, |
| 2628 | .name = "atmelfwl" |
| 2629 | }, { |
| 2630 | .cmd = ATMELIDIFC, |
| 2631 | .set_args = IW_PRIV_TYPE_NONE, |
| 2632 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, |
| 2633 | .name = "atmelidifc" |
| 2634 | }, { |
| 2635 | .cmd = ATMELRD, |
| 2636 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, |
| 2637 | .get_args = IW_PRIV_TYPE_NONE, |
| 2638 | .name = "regdomain" |
| 2639 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2640 | }; |
| 2641 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 2642 | static const struct iw_handler_def atmel_handler_def = { |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 2643 | .num_standard = ARRAY_SIZE(atmel_handler), |
| 2644 | .num_private = ARRAY_SIZE(atmel_private_handler), |
| 2645 | .num_private_args = ARRAY_SIZE(atmel_private_args), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2646 | .standard = (iw_handler *) atmel_handler, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2647 | .private = (iw_handler *) atmel_private_handler, |
Jean Tourrilhes | 72f98d3 | 2005-09-02 11:36:00 -0700 | [diff] [blame] | 2648 | .private_args = (struct iw_priv_args *) atmel_private_args, |
| 2649 | .get_wireless_stats = atmel_get_wireless_stats |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2650 | }; |
| 2651 | |
| 2652 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2653 | { |
| 2654 | int i, rc = 0; |
| 2655 | struct atmel_private *priv = netdev_priv(dev); |
| 2656 | atmel_priv_ioctl com; |
| 2657 | struct iwreq *wrq = (struct iwreq *) rq; |
| 2658 | unsigned char *new_firmware; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2659 | char domain[REGDOMAINSZ + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2660 | |
| 2661 | switch (cmd) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2662 | case ATMELIDIFC: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2663 | wrq->u.param.value = ATMELMAGIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2664 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2666 | case ATMELFWL: |
| 2667 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { |
| 2668 | rc = -EFAULT; |
| 2669 | break; |
| 2670 | } |
| 2671 | |
| 2672 | if (!capable(CAP_NET_ADMIN)) { |
| 2673 | rc = -EPERM; |
| 2674 | break; |
| 2675 | } |
| 2676 | |
| 2677 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { |
| 2678 | rc = -ENOMEM; |
| 2679 | break; |
| 2680 | } |
| 2681 | |
| 2682 | if (copy_from_user(new_firmware, com.data, com.len)) { |
| 2683 | kfree(new_firmware); |
| 2684 | rc = -EFAULT; |
| 2685 | break; |
| 2686 | } |
| 2687 | |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 2688 | kfree(priv->firmware); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2690 | priv->firmware = new_firmware; |
| 2691 | priv->firmware_length = com.len; |
| 2692 | strncpy(priv->firmware_id, com.id, 31); |
| 2693 | priv->firmware_id[31] = '\0'; |
| 2694 | break; |
| 2695 | |
| 2696 | case ATMELRD: |
| 2697 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { |
| 2698 | rc = -EFAULT; |
| 2699 | break; |
| 2700 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2701 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2702 | if (!capable(CAP_NET_ADMIN)) { |
| 2703 | rc = -EPERM; |
| 2704 | break; |
| 2705 | } |
| 2706 | |
| 2707 | domain[REGDOMAINSZ] = 0; |
| 2708 | rc = -EINVAL; |
Dmitry Torokhov | b434113 | 2006-10-08 00:14:29 -0400 | [diff] [blame] | 2709 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2710 | /* strcasecmp doesn't exist in the library */ |
| 2711 | char *a = channel_table[i].name; |
| 2712 | char *b = domain; |
| 2713 | while (*a) { |
| 2714 | char c1 = *a++; |
| 2715 | char c2 = *b++; |
| 2716 | if (tolower(c1) != tolower(c2)) |
| 2717 | break; |
| 2718 | } |
| 2719 | if (!*a && !*b) { |
| 2720 | priv->config_reg_domain = channel_table[i].reg_domain; |
| 2721 | rc = 0; |
| 2722 | } |
| 2723 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2724 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2725 | if (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
| 2726 | rc = atmel_open(dev); |
| 2727 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2728 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2729 | default: |
| 2730 | rc = -EOPNOTSUPP; |
| 2731 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2732 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2733 | return rc; |
| 2734 | } |
| 2735 | |
| 2736 | struct auth_body { |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 2737 | __le16 alg; |
| 2738 | __le16 trans_seq; |
| 2739 | __le16 status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2740 | u8 el_id; |
| 2741 | u8 chall_text_len; |
| 2742 | u8 chall_text[253]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2743 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2744 | |
| 2745 | static void atmel_enter_state(struct atmel_private *priv, int new_state) |
| 2746 | { |
| 2747 | int old_state = priv->station_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2748 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2749 | if (new_state == old_state) |
| 2750 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2751 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2752 | priv->station_state = new_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2753 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2754 | if (new_state == STATION_STATE_READY) { |
| 2755 | netif_start_queue(priv->dev); |
| 2756 | netif_carrier_on(priv->dev); |
| 2757 | } |
| 2758 | |
| 2759 | if (old_state == STATION_STATE_READY) { |
| 2760 | netif_carrier_off(priv->dev); |
| 2761 | if (netif_running(priv->dev)) |
| 2762 | netif_stop_queue(priv->dev); |
| 2763 | priv->last_beacon_timestamp = 0; |
| 2764 | } |
| 2765 | } |
| 2766 | |
| 2767 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) |
| 2768 | { |
| 2769 | struct { |
| 2770 | u8 BSSID[6]; |
| 2771 | u8 SSID[MAX_SSID_LENGTH]; |
| 2772 | u8 scan_type; |
| 2773 | u8 channel; |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 2774 | __le16 BSS_type; |
| 2775 | __le16 min_channel_time; |
| 2776 | __le16 max_channel_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2777 | u8 options; |
| 2778 | u8 SSID_size; |
| 2779 | } cmd; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2780 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2781 | memset(cmd.BSSID, 0xff, 6); |
| 2782 | |
| 2783 | if (priv->fast_scan) { |
| 2784 | cmd.SSID_size = priv->SSID_size; |
| 2785 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2786 | cmd.min_channel_time = cpu_to_le16(10); |
| 2787 | cmd.max_channel_time = cpu_to_le16(50); |
| 2788 | } else { |
| 2789 | priv->BSS_list_entries = 0; |
| 2790 | cmd.SSID_size = 0; |
| 2791 | cmd.min_channel_time = cpu_to_le16(10); |
| 2792 | cmd.max_channel_time = cpu_to_le16(120); |
| 2793 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2795 | cmd.options = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2796 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2797 | if (!specific_ssid) |
| 2798 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2799 | |
| 2800 | cmd.channel = (priv->channel & 0x7f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2801 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2802 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2803 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2804 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2805 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
| 2806 | |
| 2807 | /* This must come after all hardware access to avoid being messed up |
| 2808 | by stuff happening in interrupt context after we leave STATE_DOWN */ |
| 2809 | atmel_enter_state(priv, STATION_STATE_SCANNING); |
| 2810 | } |
| 2811 | |
| 2812 | static void join(struct atmel_private *priv, int type) |
| 2813 | { |
| 2814 | struct { |
| 2815 | u8 BSSID[6]; |
| 2816 | u8 SSID[MAX_SSID_LENGTH]; |
| 2817 | u8 BSS_type; /* this is a short in a scan command - weird */ |
| 2818 | u8 channel; |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 2819 | __le16 timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2820 | u8 SSID_size; |
| 2821 | u8 reserved; |
| 2822 | } cmd; |
| 2823 | |
| 2824 | cmd.SSID_size = priv->SSID_size; |
| 2825 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2826 | memcpy(cmd.BSSID, priv->CurrentBSSID, 6); |
| 2827 | cmd.channel = (priv->channel & 0x7f); |
| 2828 | cmd.BSS_type = type; |
| 2829 | cmd.timeout = cpu_to_le16(2000); |
| 2830 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2831 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | } |
| 2833 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2834 | static void start(struct atmel_private *priv, int type) |
| 2835 | { |
| 2836 | struct { |
| 2837 | u8 BSSID[6]; |
| 2838 | u8 SSID[MAX_SSID_LENGTH]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2839 | u8 BSS_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2840 | u8 channel; |
| 2841 | u8 SSID_size; |
| 2842 | u8 reserved[3]; |
| 2843 | } cmd; |
| 2844 | |
| 2845 | cmd.SSID_size = priv->SSID_size; |
| 2846 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2847 | memcpy(cmd.BSSID, priv->BSSID, 6); |
| 2848 | cmd.BSS_type = type; |
| 2849 | cmd.channel = (priv->channel & 0x7f); |
| 2850 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2851 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2852 | } |
| 2853 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2854 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
| 2855 | u8 channel) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2856 | { |
| 2857 | int rejoin = 0; |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2858 | int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2859 | SHORT_PREAMBLE : LONG_PREAMBLE; |
| 2860 | |
| 2861 | if (priv->preamble != new) { |
| 2862 | priv->preamble = new; |
| 2863 | rejoin = 1; |
| 2864 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); |
| 2865 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2867 | if (priv->channel != channel) { |
| 2868 | priv->channel = channel; |
| 2869 | rejoin = 1; |
| 2870 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); |
| 2871 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2872 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2873 | if (rejoin) { |
| 2874 | priv->station_is_associated = 0; |
| 2875 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2876 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2877 | if (priv->operating_mode == IW_MODE_INFRA) |
| 2878 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2879 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2880 | join(priv, BSS_TYPE_AD_HOC); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2881 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2882 | } |
| 2883 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2884 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
| 2885 | u8 *challenge, int challenge_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2886 | { |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2887 | struct ieee80211_hdr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2888 | struct auth_body auth; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2889 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2890 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2891 | header.duration_id = cpu_to_le16(0x8000); |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2892 | header.seq_ctrl = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2893 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
| 2894 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
| 2895 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2896 | |
| 2897 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2898 | /* no WEP for authentication frames with TrSeqNo 1 */ |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 2899 | header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2900 | |
| 2901 | auth.alg = cpu_to_le16(system); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | |
| 2903 | auth.status = 0; |
| 2904 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2905 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2906 | priv->CurrentAuthentTransactionSeqNum += 2; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2907 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2908 | if (challenge_len != 0) { |
| 2909 | auth.el_id = 16; /* challenge_text */ |
| 2910 | auth.chall_text_len = challenge_len; |
| 2911 | memcpy(auth.chall_text, challenge, challenge_len); |
| 2912 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); |
| 2913 | } else { |
| 2914 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); |
| 2915 | } |
| 2916 | } |
| 2917 | |
| 2918 | static void send_association_request(struct atmel_private *priv, int is_reassoc) |
| 2919 | { |
| 2920 | u8 *ssid_el_p; |
| 2921 | int bodysize; |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2922 | struct ieee80211_hdr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2923 | struct ass_req_format { |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 2924 | __le16 capability; |
| 2925 | __le16 listen_interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2926 | u8 ap[6]; /* nothing after here directly accessible */ |
| 2927 | u8 ssid_el_id; |
| 2928 | u8 ssid_len; |
| 2929 | u8 ssid[MAX_SSID_LENGTH]; |
| 2930 | u8 sup_rates_el_id; |
| 2931 | u8 sup_rates_len; |
| 2932 | u8 rates[4]; |
| 2933 | } body; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2934 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2935 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 2936 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2937 | header.duration_id = cpu_to_le16(0x8000); |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2938 | header.seq_ctrl = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2939 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2940 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2941 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2942 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2943 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 2944 | body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2945 | if (priv->wep_is_on) |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 2946 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2947 | if (priv->preamble == SHORT_PREAMBLE) |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2948 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2949 | |
| 2950 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2951 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2952 | /* current AP address - only in reassoc frame */ |
| 2953 | if (is_reassoc) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2954 | memcpy(body.ap, priv->CurrentBSSID, 6); |
Joe Perches | 2c20889 | 2012-06-04 12:44:17 +0000 | [diff] [blame] | 2955 | ssid_el_p = &body.ssid_el_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2956 | bodysize = 18 + priv->SSID_size; |
| 2957 | } else { |
Joe Perches | 2c20889 | 2012-06-04 12:44:17 +0000 | [diff] [blame] | 2958 | ssid_el_p = &body.ap[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2959 | bodysize = 12 + priv->SSID_size; |
| 2960 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2961 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2962 | ssid_el_p[0] = WLAN_EID_SSID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2963 | ssid_el_p[1] = priv->SSID_size; |
| 2964 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2965 | ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES; |
Masanari Iida | 02582e9 | 2012-08-22 19:11:26 +0900 | [diff] [blame] | 2966 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of supported rates */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2967 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); |
| 2968 | |
| 2969 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); |
| 2970 | } |
| 2971 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2972 | static int is_frame_from_current_bss(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2973 | struct ieee80211_hdr *header) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | { |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 2975 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2976 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
| 2977 | else |
| 2978 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; |
| 2979 | } |
| 2980 | |
| 2981 | static int retrieve_bss(struct atmel_private *priv) |
| 2982 | { |
| 2983 | int i; |
| 2984 | int max_rssi = -128; |
| 2985 | int max_index = -1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2986 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2987 | if (priv->BSS_list_entries == 0) |
| 2988 | return -1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2989 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2990 | if (priv->connect_to_any_BSS) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2991 | /* Select a BSS with the max-RSSI but of the same type and of |
| 2992 | the same WEP mode and that it is not marked as 'bad' (i.e. |
| 2993 | we had previously failed to connect to this BSS with the |
| 2994 | settings that we currently use) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2995 | priv->current_BSS = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2996 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2997 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2998 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2999 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
| 3000 | !(priv->BSSinfo[i].channel & 0x80)) { |
| 3001 | max_rssi = priv->BSSinfo[i].RSSI; |
| 3002 | priv->current_BSS = max_index = i; |
| 3003 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3004 | } |
| 3005 | return max_index; |
| 3006 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3007 | |
| 3008 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3009 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
| 3010 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && |
| 3011 | priv->operating_mode == priv->BSSinfo[i].BSStype && |
| 3012 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { |
| 3013 | if (priv->BSSinfo[i].RSSI >= max_rssi) { |
| 3014 | max_rssi = priv->BSSinfo[i].RSSI; |
| 3015 | max_index = i; |
| 3016 | } |
| 3017 | } |
| 3018 | } |
| 3019 | return max_index; |
| 3020 | } |
| 3021 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3022 | static void store_bss_info(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 3023 | struct ieee80211_hdr *header, u16 capability, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3024 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, |
| 3025 | u8 *ssid, int is_beacon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3026 | { |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3027 | u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3028 | int i, index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3029 | |
| 3030 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) |
| 3031 | if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3032 | index = i; |
| 3033 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3034 | /* If we process a probe and an entry from this BSS exists |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3035 | we will update the BSS entry with the info from this BSS. |
| 3036 | If we process a beacon we will only update RSSI */ |
| 3037 | |
| 3038 | if (index == -1) { |
| 3039 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) |
| 3040 | return; |
| 3041 | index = priv->BSS_list_entries++; |
| 3042 | memcpy(priv->BSSinfo[index].BSSID, bss, 6); |
| 3043 | priv->BSSinfo[index].RSSI = rssi; |
| 3044 | } else { |
| 3045 | if (rssi > priv->BSSinfo[index].RSSI) |
| 3046 | priv->BSSinfo[index].RSSI = rssi; |
| 3047 | if (is_beacon) |
| 3048 | return; |
| 3049 | } |
| 3050 | |
| 3051 | priv->BSSinfo[index].channel = channel; |
| 3052 | priv->BSSinfo[index].beacon_period = beacon_period; |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3053 | priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3054 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
| 3055 | priv->BSSinfo[index].SSIDsize = ssid_len; |
| 3056 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3057 | if (capability & WLAN_CAPABILITY_IBSS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3058 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3059 | else if (capability & WLAN_CAPABILITY_ESS) |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3060 | priv->BSSinfo[index].BSStype = IW_MODE_INFRA; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3061 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 3062 | priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3063 | SHORT_PREAMBLE : LONG_PREAMBLE; |
| 3064 | } |
| 3065 | |
| 3066 | static void authenticate(struct atmel_private *priv, u16 frame_len) |
| 3067 | { |
| 3068 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; |
| 3069 | u16 status = le16_to_cpu(auth->status); |
| 3070 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3071 | u16 system = le16_to_cpu(auth->alg); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3072 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3073 | if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3074 | /* no WEP */ |
| 3075 | if (priv->station_was_associated) { |
| 3076 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); |
| 3077 | send_association_request(priv, 1); |
| 3078 | return; |
| 3079 | } else { |
| 3080 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); |
| 3081 | send_association_request(priv, 0); |
| 3082 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3083 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3084 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3085 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3086 | if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) { |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3087 | int should_associate = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3088 | /* WEP */ |
| 3089 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) |
| 3090 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3091 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3092 | if (system == WLAN_AUTH_OPEN) { |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3093 | if (trans_seq_no == 0x0002) { |
| 3094 | should_associate = 1; |
| 3095 | } |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3096 | } else if (system == WLAN_AUTH_SHARED_KEY) { |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3097 | if (trans_seq_no == 0x0002 && |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 3098 | auth->el_id == WLAN_EID_CHALLENGE) { |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3099 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
| 3100 | return; |
| 3101 | } else if (trans_seq_no == 0x0004) { |
| 3102 | should_associate = 1; |
| 3103 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3104 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3105 | |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3106 | if (should_associate) { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3107 | if (priv->station_was_associated) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3108 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); |
| 3109 | send_association_request(priv, 1); |
| 3110 | return; |
| 3111 | } else { |
| 3112 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); |
| 3113 | send_association_request(priv, 0); |
| 3114 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3115 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3116 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3117 | } |
| 3118 | |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3119 | if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { |
Dan Williams | d0c2912 | 2008-08-18 15:32:41 -0400 | [diff] [blame] | 3120 | /* Flip back and forth between WEP auth modes until the max |
| 3121 | * authentication tries has been exceeded. |
| 3122 | */ |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3123 | if (system == WLAN_AUTH_OPEN) { |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3124 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3125 | priv->exclude_unencrypted = 1; |
| 3126 | send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0); |
| 3127 | return; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3128 | } else if (system == WLAN_AUTH_SHARED_KEY |
| 3129 | && priv->wep_is_on) { |
Dan Williams | d0c2912 | 2008-08-18 15:32:41 -0400 | [diff] [blame] | 3130 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
| 3131 | priv->exclude_unencrypted = 0; |
| 3132 | send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0); |
| 3133 | return; |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3134 | } else if (priv->connect_to_any_BSS) { |
| 3135 | int bss_index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3136 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3137 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3138 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3139 | if ((bss_index = retrieve_bss(priv)) != -1) { |
| 3140 | atmel_join_bss(priv, bss_index); |
| 3141 | return; |
| 3142 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3143 | } |
| 3144 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3146 | priv->AuthenticationRequestRetryCnt = 0; |
| 3147 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3148 | priv->station_is_associated = 0; |
| 3149 | } |
| 3150 | |
| 3151 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) |
| 3152 | { |
| 3153 | struct ass_resp_format { |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 3154 | __le16 capability; |
| 3155 | __le16 status; |
| 3156 | __le16 ass_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3157 | u8 el_id; |
| 3158 | u8 length; |
| 3159 | u8 rates[4]; |
| 3160 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3161 | |
| 3162 | u16 status = le16_to_cpu(ass_resp->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3163 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3164 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
| 3165 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3166 | union iwreq_data wrqu; |
| 3167 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3168 | if (frame_len < 8 + rates_len) |
| 3169 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3170 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3171 | if (status == WLAN_STATUS_SUCCESS) { |
| 3172 | if (subtype == IEEE80211_STYPE_ASSOC_RESP) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3173 | priv->AssociationRequestRetryCnt = 0; |
| 3174 | else |
| 3175 | priv->ReAssociationRequestRetryCnt = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3176 | |
| 3177 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3178 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); |
| 3179 | atmel_set_mib(priv, Phy_Mib_Type, |
| 3180 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3181 | if (priv->power_mode == 0) { |
| 3182 | priv->listen_interval = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3183 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3184 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 3185 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3186 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3187 | } else { |
| 3188 | priv->listen_interval = 2; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3189 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3190 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); |
| 3191 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3192 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3193 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3195 | priv->station_is_associated = 1; |
| 3196 | priv->station_was_associated = 1; |
| 3197 | atmel_enter_state(priv, STATION_STATE_READY); |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3198 | |
| 3199 | /* Send association event to userspace */ |
| 3200 | wrqu.data.length = 0; |
| 3201 | wrqu.data.flags = 0; |
| 3202 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); |
| 3203 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 3204 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 3205 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3206 | return; |
| 3207 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3208 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3209 | if (subtype == IEEE80211_STYPE_ASSOC_RESP && |
| 3210 | status != WLAN_STATUS_ASSOC_DENIED_RATES && |
| 3211 | status != WLAN_STATUS_CAPS_UNSUPPORTED && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3212 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
| 3213 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3214 | priv->AssociationRequestRetryCnt++; |
| 3215 | send_association_request(priv, 0); |
| 3216 | return; |
| 3217 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3218 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3219 | if (subtype == IEEE80211_STYPE_REASSOC_RESP && |
| 3220 | status != WLAN_STATUS_ASSOC_DENIED_RATES && |
| 3221 | status != WLAN_STATUS_CAPS_UNSUPPORTED && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3222 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
| 3223 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3224 | priv->ReAssociationRequestRetryCnt++; |
| 3225 | send_association_request(priv, 1); |
| 3226 | return; |
| 3227 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3229 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3230 | priv->station_is_associated = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3231 | |
| 3232 | if (priv->connect_to_any_BSS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3233 | int bss_index; |
| 3234 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3235 | |
| 3236 | if ((bss_index = retrieve_bss(priv)) != -1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3237 | atmel_join_bss(priv, bss_index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3238 | } |
| 3239 | } |
| 3240 | |
Hannes Eder | 2ed5ba8 | 2008-12-26 00:12:59 -0800 | [diff] [blame] | 3241 | static void atmel_join_bss(struct atmel_private *priv, int bss_index) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3242 | { |
| 3243 | struct bss_info *bss = &priv->BSSinfo[bss_index]; |
| 3244 | |
| 3245 | memcpy(priv->CurrentBSSID, bss->BSSID, 6); |
| 3246 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); |
| 3247 | |
| 3248 | /* The WPA stuff cares about the current AP address */ |
| 3249 | if (priv->use_wpa) |
| 3250 | build_wpa_mib(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3251 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3252 | /* When switching to AdHoc turn OFF Power Save if needed */ |
| 3253 | |
| 3254 | if (bss->BSStype == IW_MODE_ADHOC && |
| 3255 | priv->operating_mode != IW_MODE_ADHOC && |
| 3256 | priv->power_mode) { |
| 3257 | priv->power_mode = 0; |
| 3258 | priv->listen_interval = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3259 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3260 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 3261 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3262 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3263 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3264 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3265 | priv->operating_mode = bss->BSStype; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3266 | priv->channel = bss->channel & 0x7f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3267 | priv->beacon_period = bss->beacon_period; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3268 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3269 | if (priv->preamble != bss->preamble) { |
| 3270 | priv->preamble = bss->preamble; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3271 | atmel_set_mib8(priv, Local_Mib_Type, |
| 3272 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3273 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3275 | if (!priv->wep_is_on && bss->UsingWEP) { |
| 3276 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3277 | priv->station_is_associated = 0; |
| 3278 | return; |
| 3279 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3281 | if (priv->wep_is_on && !bss->UsingWEP) { |
| 3282 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3283 | priv->station_is_associated = 0; |
| 3284 | return; |
| 3285 | } |
| 3286 | |
| 3287 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3289 | if (priv->operating_mode == IW_MODE_INFRA) |
| 3290 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3291 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3292 | join(priv, BSS_TYPE_AD_HOC); |
| 3293 | } |
| 3294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3295 | static void restart_search(struct atmel_private *priv) |
| 3296 | { |
| 3297 | int bss_index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3298 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3299 | if (!priv->connect_to_any_BSS) { |
| 3300 | atmel_scan(priv, 1); |
| 3301 | } else { |
| 3302 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3303 | |
| 3304 | if ((bss_index = retrieve_bss(priv)) != -1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3305 | atmel_join_bss(priv, bss_index); |
| 3306 | else |
| 3307 | atmel_scan(priv, 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3308 | } |
| 3309 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3310 | |
| 3311 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) |
| 3312 | { |
| 3313 | u8 old = priv->wstats.qual.level; |
| 3314 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ |
| 3315 | |
| 3316 | switch (priv->firmware_type) { |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3317 | case ATMEL_FW_TYPE_502E: |
| 3318 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ |
| 3319 | break; |
| 3320 | default: |
| 3321 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3322 | } |
| 3323 | |
| 3324 | rssi = rssi * 100 / max_rssi; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3325 | if ((rssi + old) % 2) |
| 3326 | priv->wstats.qual.level = (rssi + old) / 2 + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3327 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3328 | priv->wstats.qual.level = (rssi + old) / 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3329 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
| 3330 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; |
| 3331 | } |
| 3332 | |
| 3333 | static void atmel_smooth_qual(struct atmel_private *priv) |
| 3334 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3335 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3336 | while (time_diff--) { |
| 3337 | priv->last_qual += HZ; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3338 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
| 3339 | priv->wstats.qual.qual += |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3340 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
| 3341 | priv->beacons_this_sec = 0; |
| 3342 | } |
| 3343 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; |
| 3344 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; |
| 3345 | } |
| 3346 | |
Uwe Kleine-Koenig | 3dbda77 | 2009-07-23 08:31:31 +0200 | [diff] [blame] | 3347 | /* deals with incoming management frames. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3348 | static void atmel_management_frame(struct atmel_private *priv, |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 3349 | struct ieee80211_hdr *header, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3350 | u16 frame_len, u8 rssi) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3351 | { |
| 3352 | u16 subtype; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3353 | |
Johannes Berg | 2c706002 | 2008-10-30 22:09:54 +0100 | [diff] [blame] | 3354 | subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3355 | switch (subtype) { |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3356 | case IEEE80211_STYPE_BEACON: |
| 3357 | case IEEE80211_STYPE_PROBE_RESP: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3358 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3359 | /* beacon frame has multiple variable-length fields - |
| 3360 | never let an engineer loose with a data structure design. */ |
| 3361 | { |
| 3362 | struct beacon_format { |
Al Viro | 0e5ce1f | 2007-12-22 13:45:50 -0500 | [diff] [blame] | 3363 | __le64 timestamp; |
| 3364 | __le16 interval; |
| 3365 | __le16 capability; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3366 | u8 ssid_el_id; |
| 3367 | u8 ssid_length; |
| 3368 | /* ssid here */ |
| 3369 | u8 rates_el_id; |
| 3370 | u8 rates_length; |
| 3371 | /* rates here */ |
| 3372 | u8 ds_el_id; |
| 3373 | u8 ds_length; |
| 3374 | /* ds here */ |
| 3375 | } *beacon = (struct beacon_format *)priv->rx_buf; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3376 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3377 | u8 channel, rates_length, ssid_length; |
| 3378 | u64 timestamp = le64_to_cpu(beacon->timestamp); |
| 3379 | u16 beacon_interval = le16_to_cpu(beacon->interval); |
| 3380 | u16 capability = le16_to_cpu(beacon->capability); |
| 3381 | u8 *beaconp = priv->rx_buf; |
| 3382 | ssid_length = beacon->ssid_length; |
| 3383 | /* this blows chunks. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3384 | if (frame_len < 14 || frame_len < ssid_length + 15) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3385 | return; |
| 3386 | rates_length = beaconp[beacon->ssid_length + 15]; |
| 3387 | if (frame_len < ssid_length + rates_length + 18) |
| 3388 | return; |
| 3389 | if (ssid_length > MAX_SSID_LENGTH) |
| 3390 | return; |
| 3391 | channel = beaconp[ssid_length + rates_length + 18]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3392 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3393 | if (priv->station_state == STATION_STATE_READY) { |
| 3394 | smooth_rssi(priv, rssi); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3395 | if (is_frame_from_current_bss(priv, header)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3396 | priv->beacons_this_sec++; |
| 3397 | atmel_smooth_qual(priv); |
| 3398 | if (priv->last_beacon_timestamp) { |
| 3399 | /* Note truncate this to 32 bits - kernel can't divide a long long */ |
| 3400 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; |
| 3401 | int beacons = beacon_delay / (beacon_interval * 1000); |
| 3402 | if (beacons > 1) |
| 3403 | priv->wstats.miss.beacon += beacons - 1; |
| 3404 | } |
| 3405 | priv->last_beacon_timestamp = timestamp; |
| 3406 | handle_beacon_probe(priv, capability, channel); |
| 3407 | } |
| 3408 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3409 | |
| 3410 | if (priv->station_state == STATION_STATE_SCANNING) |
| 3411 | store_bss_info(priv, header, capability, |
| 3412 | beacon_interval, channel, rssi, |
| 3413 | ssid_length, |
| 3414 | &beacon->rates_el_id, |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3415 | subtype == IEEE80211_STYPE_BEACON); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3416 | } |
| 3417 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3418 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3419 | case IEEE80211_STYPE_AUTH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3420 | |
| 3421 | if (priv->station_state == STATION_STATE_AUTHENTICATING) |
| 3422 | authenticate(priv, frame_len); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3423 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3424 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3425 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3426 | case IEEE80211_STYPE_ASSOC_RESP: |
| 3427 | case IEEE80211_STYPE_REASSOC_RESP: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3428 | |
| 3429 | if (priv->station_state == STATION_STATE_ASSOCIATING || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3430 | priv->station_state == STATION_STATE_REASSOCIATING) |
| 3431 | associate(priv, frame_len, subtype); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3432 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3433 | break; |
| 3434 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3435 | case IEEE80211_STYPE_DISASSOC: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3436 | if (priv->station_is_associated && |
| 3437 | priv->operating_mode == IW_MODE_INFRA && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3438 | is_frame_from_current_bss(priv, header)) { |
| 3439 | priv->station_was_associated = 0; |
| 3440 | priv->station_is_associated = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3441 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3442 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
| 3443 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
| 3444 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3445 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3446 | break; |
| 3447 | |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3448 | case IEEE80211_STYPE_DEAUTH: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3449 | if (priv->operating_mode == IW_MODE_INFRA && |
| 3450 | is_frame_from_current_bss(priv, header)) { |
| 3451 | priv->station_was_associated = 0; |
| 3452 | |
| 3453 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
| 3454 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
| 3455 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3456 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3457 | break; |
| 3458 | } |
| 3459 | } |
| 3460 | |
| 3461 | /* run when timer expires */ |
| 3462 | static void atmel_management_timer(u_long a) |
| 3463 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3464 | struct net_device *dev = (struct net_device *) a; |
| 3465 | struct atmel_private *priv = netdev_priv(dev); |
| 3466 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3467 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3468 | /* Check if the card has been yanked. */ |
| 3469 | if (priv->card && priv->present_callback && |
| 3470 | !(*priv->present_callback)(priv->card)) |
| 3471 | return; |
| 3472 | |
| 3473 | spin_lock_irqsave(&priv->irqlock, flags); |
| 3474 | |
| 3475 | switch (priv->station_state) { |
| 3476 | |
| 3477 | case STATION_STATE_AUTHENTICATING: |
| 3478 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { |
| 3479 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3480 | priv->station_is_associated = 0; |
| 3481 | priv->AuthenticationRequestRetryCnt = 0; |
| 3482 | restart_search(priv); |
| 3483 | } else { |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3484 | int auth = WLAN_AUTH_OPEN; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3485 | priv->AuthenticationRequestRetryCnt++; |
| 3486 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
| 3487 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3488 | if (priv->wep_is_on && priv->exclude_unencrypted) |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3489 | auth = WLAN_AUTH_SHARED_KEY; |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3490 | send_authentication_request(priv, auth, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3491 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3492 | break; |
| 3493 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3494 | case STATION_STATE_ASSOCIATING: |
| 3495 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { |
| 3496 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3497 | priv->station_is_associated = 0; |
| 3498 | priv->AssociationRequestRetryCnt = 0; |
| 3499 | restart_search(priv); |
| 3500 | } else { |
| 3501 | priv->AssociationRequestRetryCnt++; |
| 3502 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3503 | send_association_request(priv, 0); |
| 3504 | } |
| 3505 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3506 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3507 | case STATION_STATE_REASSOCIATING: |
| 3508 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { |
| 3509 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3510 | priv->station_is_associated = 0; |
| 3511 | priv->ReAssociationRequestRetryCnt = 0; |
| 3512 | restart_search(priv); |
| 3513 | } else { |
| 3514 | priv->ReAssociationRequestRetryCnt++; |
| 3515 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3516 | send_association_request(priv, 1); |
| 3517 | } |
| 3518 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3519 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3520 | default: |
| 3521 | break; |
| 3522 | } |
| 3523 | |
| 3524 | spin_unlock_irqrestore(&priv->irqlock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3525 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3526 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3527 | static void atmel_command_irq(struct atmel_private *priv) |
| 3528 | { |
| 3529 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); |
| 3530 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); |
| 3531 | int fast_scan; |
Dan Williams | 3a1af6f | 2006-03-31 15:13:31 -0500 | [diff] [blame] | 3532 | union iwreq_data wrqu; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3533 | |
| 3534 | if (status == CMD_STATUS_IDLE || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3535 | status == CMD_STATUS_IN_PROGRESS) |
| 3536 | return; |
| 3537 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3538 | switch (command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3539 | case CMD_Start: |
| 3540 | if (status == CMD_STATUS_COMPLETE) { |
| 3541 | priv->station_was_associated = priv->station_is_associated; |
| 3542 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
| 3543 | (u8 *)priv->CurrentBSSID, 6); |
| 3544 | atmel_enter_state(priv, STATION_STATE_READY); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3545 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3546 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3548 | case CMD_Scan: |
| 3549 | fast_scan = priv->fast_scan; |
| 3550 | priv->fast_scan = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3552 | if (status != CMD_STATUS_COMPLETE) { |
| 3553 | atmel_scan(priv, 1); |
| 3554 | } else { |
| 3555 | int bss_index = retrieve_bss(priv); |
Dan Williams | 3a1af6f | 2006-03-31 15:13:31 -0500 | [diff] [blame] | 3556 | int notify_scan_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3557 | if (bss_index != -1) { |
| 3558 | atmel_join_bss(priv, bss_index); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3559 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3560 | priv->SSID_size != 0) { |
| 3561 | start(priv, BSS_TYPE_AD_HOC); |
| 3562 | } else { |
| 3563 | priv->fast_scan = !fast_scan; |
| 3564 | atmel_scan(priv, 1); |
Dan Williams | 3a1af6f | 2006-03-31 15:13:31 -0500 | [diff] [blame] | 3565 | notify_scan_complete = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3566 | } |
| 3567 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
Dan Williams | 3a1af6f | 2006-03-31 15:13:31 -0500 | [diff] [blame] | 3568 | if (notify_scan_complete) { |
| 3569 | wrqu.data.length = 0; |
| 3570 | wrqu.data.flags = 0; |
| 3571 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); |
| 3572 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3573 | } |
| 3574 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3575 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3576 | case CMD_SiteSurvey: |
| 3577 | priv->fast_scan = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3579 | if (status != CMD_STATUS_COMPLETE) |
| 3580 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3581 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3582 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
| 3583 | if (priv->station_is_associated) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3584 | atmel_enter_state(priv, STATION_STATE_READY); |
Dan Williams | 3a1af6f | 2006-03-31 15:13:31 -0500 | [diff] [blame] | 3585 | wrqu.data.length = 0; |
| 3586 | wrqu.data.flags = 0; |
| 3587 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3588 | } else { |
| 3589 | atmel_scan(priv, 1); |
| 3590 | } |
| 3591 | break; |
| 3592 | |
| 3593 | case CMD_Join: |
| 3594 | if (status == CMD_STATUS_COMPLETE) { |
| 3595 | if (priv->operating_mode == IW_MODE_ADHOC) { |
| 3596 | priv->station_was_associated = priv->station_is_associated; |
| 3597 | atmel_enter_state(priv, STATION_STATE_READY); |
| 3598 | } else { |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3599 | int auth = WLAN_AUTH_OPEN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3600 | priv->AuthenticationRequestRetryCnt = 0; |
| 3601 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3602 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3603 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3604 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3605 | if (priv->wep_is_on && priv->exclude_unencrypted) |
Dan Williams | 4861dd7 | 2006-02-05 17:57:36 -0500 | [diff] [blame] | 3606 | auth = WLAN_AUTH_SHARED_KEY; |
Dan Williams | 7345137 | 2006-02-05 17:55:16 -0500 | [diff] [blame] | 3607 | send_authentication_request(priv, auth, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3608 | } |
| 3609 | return; |
| 3610 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3611 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3612 | atmel_scan(priv, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3613 | } |
| 3614 | } |
| 3615 | |
| 3616 | static int atmel_wakeup_firmware(struct atmel_private *priv) |
| 3617 | { |
| 3618 | struct host_info_struct *iface = &priv->host_info; |
| 3619 | u16 mr1, mr3; |
| 3620 | int i; |
| 3621 | |
| 3622 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
| 3623 | atmel_set_gcr(priv->dev, GCR_REMAP); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3624 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3625 | /* wake up on-board processor */ |
| 3626 | atmel_clear_gcr(priv->dev, 0x0040); |
| 3627 | atmel_write16(priv->dev, BSR, BSS_SRAM); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3628 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3629 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
| 3630 | mdelay(100); |
| 3631 | |
| 3632 | /* and wait for it */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3633 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3634 | mr1 = atmel_read16(priv->dev, MR1); |
| 3635 | mr3 = atmel_read16(priv->dev, MR3); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3636 | |
| 3637 | if (mr3 & MAC_BOOT_COMPLETE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3638 | break; |
| 3639 | if (mr1 & MAC_BOOT_COMPLETE && |
| 3640 | priv->bus_type == BUS_TYPE_PCCARD) |
| 3641 | break; |
| 3642 | } |
| 3643 | |
| 3644 | if (i == 0) { |
| 3645 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3646 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3647 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3648 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3649 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
| 3650 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3651 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3652 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3653 | |
| 3654 | /* now check for completion of MAC initialization through |
| 3655 | the FunCtrl field of the IFACE, poll MR1 to detect completion of |
| 3656 | MAC initialization, check completion status, set interrupt mask, |
| 3657 | enables interrupts and calls Tx and Rx initialization functions */ |
| 3658 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3659 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3660 | |
| 3661 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3662 | mr1 = atmel_read16(priv->dev, MR1); |
| 3663 | mr3 = atmel_read16(priv->dev, MR3); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3664 | |
| 3665 | if (mr3 & MAC_INIT_COMPLETE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3666 | break; |
| 3667 | if (mr1 & MAC_INIT_COMPLETE && |
| 3668 | priv->bus_type == BUS_TYPE_PCCARD) |
| 3669 | break; |
| 3670 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3671 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3672 | if (i == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3673 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
| 3674 | priv->dev->name); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3675 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3676 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3677 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3678 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
| 3679 | if ((mr3 & MAC_INIT_COMPLETE) && |
| 3680 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { |
| 3681 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3682 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3683 | } |
| 3684 | if ((mr1 & MAC_INIT_COMPLETE) && |
| 3685 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { |
| 3686 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3687 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3688 | } |
| 3689 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3690 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3691 | priv->host_info_base, sizeof(*iface)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3692 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3693 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
| 3694 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); |
| 3695 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); |
| 3696 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); |
| 3697 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); |
| 3698 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); |
| 3699 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); |
| 3700 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); |
| 3701 | iface->build_version = le16_to_cpu(iface->build_version); |
| 3702 | iface->command_pos = le16_to_cpu(iface->command_pos); |
| 3703 | iface->major_version = le16_to_cpu(iface->major_version); |
| 3704 | iface->minor_version = le16_to_cpu(iface->minor_version); |
| 3705 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); |
| 3706 | iface->mac_status = le16_to_cpu(iface->mac_status); |
| 3707 | |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3708 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3709 | } |
| 3710 | |
| 3711 | /* determine type of memory and MAC address */ |
| 3712 | static int probe_atmel_card(struct net_device *dev) |
| 3713 | { |
| 3714 | int rc = 0; |
| 3715 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3717 | /* reset pccard */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3718 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3719 | atmel_write16(dev, GCR, 0x0060); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3720 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3721 | atmel_write16(dev, GCR, 0x0040); |
| 3722 | mdelay(500); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3723 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3724 | if (atmel_read16(dev, MR2) == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3725 | /* No stored firmware so load a small stub which just |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3726 | tells us the MAC address */ |
| 3727 | int i; |
| 3728 | priv->card_type = CARD_TYPE_EEPROM; |
| 3729 | atmel_write16(dev, BSR, BSS_IRAM); |
| 3730 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); |
| 3731 | atmel_set_gcr(dev, GCR_REMAP); |
| 3732 | atmel_clear_gcr(priv->dev, 0x0040); |
| 3733 | atmel_write16(dev, BSR, BSS_SRAM); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3734 | for (i = LOOP_RETRY_LIMIT; i; i--) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3735 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
| 3736 | break; |
| 3737 | if (i == 0) { |
| 3738 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); |
| 3739 | } else { |
| 3740 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); |
| 3741 | /* got address, now squash it again until the network |
| 3742 | interface is opened */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3743 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3744 | atmel_write16(dev, GCR, 0x0060); |
| 3745 | atmel_write16(dev, GCR, 0x0040); |
| 3746 | rc = 1; |
| 3747 | } |
| 3748 | } else if (atmel_read16(dev, MR4) == 0) { |
| 3749 | /* Mac address easy in this case. */ |
| 3750 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3751 | atmel_write16(dev, BSR, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3752 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
| 3753 | atmel_write16(dev, BSR, 0x200); |
| 3754 | rc = 1; |
| 3755 | } else { |
| 3756 | /* Standard firmware in flash, boot it up and ask |
| 3757 | for the Mac Address */ |
| 3758 | priv->card_type = CARD_TYPE_SPI_FLASH; |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3759 | if (atmel_wakeup_firmware(priv) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3760 | atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3761 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3762 | /* got address, now squash it again until the network |
| 3763 | interface is opened */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3764 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3765 | atmel_write16(dev, GCR, 0x0060); |
| 3766 | atmel_write16(dev, GCR, 0x0040); |
| 3767 | rc = 1; |
| 3768 | } |
| 3769 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3770 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3771 | if (rc) { |
| 3772 | if (dev->dev_addr[0] == 0xFF) { |
Joe Perches | 3370a89 | 2010-11-20 18:38:55 -0800 | [diff] [blame] | 3773 | static const u8 default_mac[] = { |
| 3774 | 0x00, 0x04, 0x25, 0x00, 0x00, 0x00 |
| 3775 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3776 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); |
| 3777 | memcpy(dev->dev_addr, default_mac, 6); |
| 3778 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3779 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3780 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3781 | return rc; |
| 3782 | } |
| 3783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3784 | /* Move the encyption information on the MIB structure. |
| 3785 | This routine is for the pre-WPA firmware: later firmware has |
| 3786 | a different format MIB and a different routine. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3787 | static void build_wep_mib(struct atmel_private *priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3788 | { |
| 3789 | struct { /* NB this is matched to the hardware, don't change. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3790 | u8 wep_is_on; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3791 | u8 default_key; /* 0..3 */ |
| 3792 | u8 reserved; |
| 3793 | u8 exclude_unencrypted; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3794 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3795 | u32 WEPICV_error_count; |
| 3796 | u32 WEP_excluded_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3797 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3798 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3799 | u8 encryption_level; /* 0, 1, 2 */ |
| 3800 | u8 reserved2[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3801 | } mib; |
| 3802 | int i; |
| 3803 | |
| 3804 | mib.wep_is_on = priv->wep_is_on; |
| 3805 | if (priv->wep_is_on) { |
| 3806 | if (priv->wep_key_len[priv->default_key] > 5) |
| 3807 | mib.encryption_level = 2; |
| 3808 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3809 | mib.encryption_level = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3810 | } else { |
| 3811 | mib.encryption_level = 0; |
| 3812 | } |
| 3813 | |
| 3814 | mib.default_key = priv->default_key; |
| 3815 | mib.exclude_unencrypted = priv->exclude_unencrypted; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3816 | |
| 3817 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3818 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3819 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3820 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
| 3821 | } |
| 3822 | |
| 3823 | static void build_wpa_mib(struct atmel_private *priv) |
| 3824 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3825 | /* This is for the later (WPA enabled) firmware. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3826 | |
| 3827 | struct { /* NB this is matched to the hardware, don't change. */ |
| 3828 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; |
| 3829 | u8 receiver_address[6]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3830 | u8 wep_is_on; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3831 | u8 default_key; /* 0..3 */ |
| 3832 | u8 group_key; |
| 3833 | u8 exclude_unencrypted; |
| 3834 | u8 encryption_type; |
| 3835 | u8 reserved; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3836 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3837 | u32 WEPICV_error_count; |
| 3838 | u32 WEP_excluded_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3839 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3840 | u8 key_RSC[4][8]; |
| 3841 | } mib; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3842 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3843 | int i; |
| 3844 | |
| 3845 | mib.wep_is_on = priv->wep_is_on; |
| 3846 | mib.exclude_unencrypted = priv->exclude_unencrypted; |
| 3847 | memcpy(mib.receiver_address, priv->CurrentBSSID, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3848 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3849 | /* zero all the keys before adding in valid ones. */ |
| 3850 | memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3851 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3852 | if (priv->wep_is_on) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3853 | /* There's a comment in the Atmel code to the effect that this |
| 3854 | is only valid when still using WEP, it may need to be set to |
| 3855 | something to use WPA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3856 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3857 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3858 | mib.default_key = mib.group_key = 255; |
| 3859 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { |
| 3860 | if (priv->wep_key_len[i] > 0) { |
| 3861 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); |
| 3862 | if (i == priv->default_key) { |
| 3863 | mib.default_key = i; |
| 3864 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3865 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3866 | } else { |
| 3867 | mib.group_key = i; |
| 3868 | priv->group_cipher_suite = priv->pairwise_cipher_suite; |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3869 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3870 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3871 | } |
| 3872 | } |
| 3873 | } |
| 3874 | if (mib.default_key == 255) |
| 3875 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; |
| 3876 | if (mib.group_key == 255) |
| 3877 | mib.group_key = mib.default_key; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3878 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3879 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3880 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3881 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
| 3882 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3883 | |
| 3884 | static int reset_atmel_card(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3885 | { |
| 3886 | /* do everything necessary to wake up the hardware, including |
| 3887 | waiting for the lightning strike and throwing the knife switch.... |
| 3888 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3889 | set all the Mib values which matter in the card to match |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3890 | their settings in the atmel_private structure. Some of these |
| 3891 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) |
| 3892 | can only be changed by tearing down the world and coming back through |
| 3893 | here. |
| 3894 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3895 | This routine is also responsible for initialising some |
| 3896 | hardware-specific fields in the atmel_private structure, |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 3897 | including a copy of the firmware's hostinfo structure |
Nick Andrew | d535295 | 2009-01-03 18:51:33 +1100 | [diff] [blame] | 3898 | which is the route into the rest of the firmware datastructures. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3899 | |
| 3900 | struct atmel_private *priv = netdev_priv(dev); |
| 3901 | u8 configuration; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3902 | int old_state = priv->station_state; |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3903 | int err = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3904 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3905 | /* data to add to the firmware names, in priority order |
| 3906 | this implemenents firmware versioning */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3907 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3908 | static char *firmware_modifier[] = { |
| 3909 | "-wpa", |
| 3910 | "", |
| 3911 | NULL |
| 3912 | }; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3913 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3914 | /* reset pccard */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3915 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3916 | atmel_write16(priv->dev, GCR, 0x0060); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3917 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3918 | /* stop card , disable interrupts */ |
| 3919 | atmel_write16(priv->dev, GCR, 0x0040); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3920 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3921 | if (priv->card_type == CARD_TYPE_EEPROM) { |
| 3922 | /* copy in firmware if needed */ |
| 3923 | const struct firmware *fw_entry = NULL; |
David Woodhouse | 2f26e8a | 2008-05-24 00:09:29 +0100 | [diff] [blame] | 3924 | const unsigned char *fw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3925 | int len = priv->firmware_length; |
| 3926 | if (!(fw = priv->firmware)) { |
| 3927 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { |
| 3928 | if (strlen(priv->firmware_id) == 0) { |
| 3929 | printk(KERN_INFO |
| 3930 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", |
| 3931 | dev->name); |
| 3932 | printk(KERN_INFO |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3933 | "%s: if not, use the firmware= module parameter.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3934 | dev->name); |
| 3935 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); |
| 3936 | } |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3937 | err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev); |
| 3938 | if (err != 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3939 | printk(KERN_ALERT |
| 3940 | "%s: firmware %s is missing, cannot continue.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3941 | dev->name, priv->firmware_id); |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3942 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3943 | } |
| 3944 | } else { |
| 3945 | int fw_index = 0; |
| 3946 | int success = 0; |
| 3947 | |
| 3948 | /* get firmware filename entry based on firmware type ID */ |
| 3949 | while (fw_table[fw_index].fw_type != priv->firmware_type |
| 3950 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) |
| 3951 | fw_index++; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3952 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3953 | /* construct the actual firmware file name */ |
| 3954 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { |
| 3955 | int i; |
| 3956 | for (i = 0; firmware_modifier[i]; i++) { |
| 3957 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, |
| 3958 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); |
| 3959 | priv->firmware_id[31] = '\0'; |
| 3960 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { |
| 3961 | success = 1; |
| 3962 | break; |
| 3963 | } |
| 3964 | } |
| 3965 | } |
| 3966 | if (!success) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3967 | printk(KERN_ALERT |
| 3968 | "%s: firmware %s is missing, cannot start.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3969 | dev->name, priv->firmware_id); |
| 3970 | priv->firmware_id[0] = '\0'; |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3971 | return -ENOENT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3972 | } |
| 3973 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3974 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3975 | fw = fw_entry->data; |
| 3976 | len = fw_entry->size; |
| 3977 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3978 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 3979 | if (len <= 0x6000) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3980 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
| 3981 | atmel_copy_to_card(priv->dev, 0, fw, len); |
| 3982 | atmel_set_gcr(priv->dev, GCR_REMAP); |
| 3983 | } else { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3984 | /* Remap */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3985 | atmel_set_gcr(priv->dev, GCR_REMAP); |
| 3986 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
| 3987 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); |
| 3988 | atmel_write16(priv->dev, BSR, 0x2ff); |
| 3989 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); |
| 3990 | } |
| 3991 | |
Jesper Juhl | 7403302 | 2012-04-09 22:50:53 +0200 | [diff] [blame] | 3992 | release_firmware(fw_entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3993 | } |
| 3994 | |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 3995 | err = atmel_wakeup_firmware(priv); |
| 3996 | if (err != 0) |
| 3997 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3998 | |
| 3999 | /* Check the version and set the correct flag for wpa stuff, |
| 4000 | old and new firmware is incompatible. |
| 4001 | The pre-wpa 3com firmware reports major version 5, |
| 4002 | the wpa 3com firmware is major version 4 and doesn't need |
| 4003 | the 3com broken-ness filter. */ |
| 4004 | priv->use_wpa = (priv->host_info.major_version == 4); |
| 4005 | priv->radio_on_broken = (priv->host_info.major_version == 5); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4006 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4007 | /* unmask all irq sources */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4008 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4009 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4010 | /* int Tx system and enable Tx */ |
| 4011 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); |
| 4012 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); |
| 4013 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); |
| 4014 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); |
| 4015 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4016 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
| 4017 | priv->tx_desc_head = 0; |
| 4018 | priv->tx_desc_tail = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4019 | priv->tx_desc_previous = 0; |
| 4020 | priv->tx_free_mem = priv->host_info.tx_buff_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4021 | priv->tx_buff_head = 0; |
| 4022 | priv->tx_buff_tail = 0; |
| 4023 | |
| 4024 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); |
| 4025 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4026 | configuration | FUNC_CTRL_TxENABLE); |
| 4027 | |
| 4028 | /* init Rx system and enable */ |
| 4029 | priv->rx_desc_head = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4030 | |
| 4031 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); |
| 4032 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4033 | configuration | FUNC_CTRL_RxENABLE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4034 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4035 | if (!priv->radio_on_broken) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4036 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4037 | CMD_STATUS_REJECTED_RADIO_OFF) { |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 4038 | printk(KERN_INFO "%s: cannot turn the radio on.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4039 | dev->name); |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4040 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4041 | } |
| 4042 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4043 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4044 | /* set up enough MIB values to run. */ |
| 4045 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); |
| 4046 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); |
| 4047 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); |
| 4048 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); |
| 4049 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); |
| 4050 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); |
| 4051 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4052 | atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4053 | priv->dev->dev_addr, 6); |
| 4054 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 4055 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
| 4056 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); |
| 4057 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); |
| 4058 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); |
| 4059 | if (priv->use_wpa) |
| 4060 | build_wpa_mib(priv); |
| 4061 | else |
| 4062 | build_wep_mib(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4063 | |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4064 | if (old_state == STATION_STATE_READY) { |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 4065 | union iwreq_data wrqu; |
| 4066 | |
| 4067 | wrqu.data.length = 0; |
| 4068 | wrqu.data.flags = 0; |
| 4069 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 4070 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 4071 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 4072 | } |
| 4073 | |
Dan Williams | 3c34a5d | 2008-08-18 15:40:02 -0400 | [diff] [blame] | 4074 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4075 | } |
| 4076 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4077 | static void atmel_send_command(struct atmel_private *priv, int command, |
| 4078 | void *cmd, int cmd_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4079 | { |
| 4080 | if (cmd) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4081 | atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4082 | cmd, cmd_size); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4083 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4084 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
| 4085 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); |
| 4086 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4087 | |
| 4088 | static int atmel_send_command_wait(struct atmel_private *priv, int command, |
| 4089 | void *cmd, int cmd_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4090 | { |
| 4091 | int i, status; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4092 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4093 | atmel_send_command(priv, command, cmd, cmd_size); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4095 | for (i = 5000; i; i--) { |
| 4096 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4097 | if (status != CMD_STATUS_IDLE && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4098 | status != CMD_STATUS_IN_PROGRESS) |
| 4099 | break; |
| 4100 | udelay(20); |
| 4101 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4102 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4103 | if (i == 0) { |
| 4104 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); |
| 4105 | status = CMD_STATUS_HOST_ERROR; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4106 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4107 | if (command != CMD_EnableRadio) |
| 4108 | status = CMD_STATUS_COMPLETE; |
| 4109 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4110 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4111 | return status; |
| 4112 | } |
| 4113 | |
| 4114 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) |
| 4115 | { |
| 4116 | struct get_set_mib m; |
| 4117 | m.type = type; |
| 4118 | m.size = 1; |
| 4119 | m.index = index; |
| 4120 | |
| 4121 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); |
| 4122 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); |
| 4123 | } |
| 4124 | |
| 4125 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) |
| 4126 | { |
| 4127 | struct get_set_mib m; |
| 4128 | m.type = type; |
| 4129 | m.size = 1; |
| 4130 | m.index = index; |
| 4131 | m.data[0] = data; |
| 4132 | |
| 4133 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); |
| 4134 | } |
| 4135 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4136 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
| 4137 | u16 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4138 | { |
| 4139 | struct get_set_mib m; |
| 4140 | m.type = type; |
| 4141 | m.size = 2; |
| 4142 | m.index = index; |
| 4143 | m.data[0] = data; |
| 4144 | m.data[1] = data >> 8; |
| 4145 | |
| 4146 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); |
| 4147 | } |
| 4148 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4149 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
| 4150 | u8 *data, int data_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4151 | { |
| 4152 | struct get_set_mib m; |
| 4153 | m.type = type; |
| 4154 | m.size = data_len; |
| 4155 | m.index = index; |
| 4156 | |
| 4157 | if (data_len > MIB_MAX_DATA_BYTES) |
| 4158 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4160 | memcpy(m.data, data, data_len); |
| 4161 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
| 4162 | } |
| 4163 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4164 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
| 4165 | u8 *data, int data_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4166 | { |
| 4167 | struct get_set_mib m; |
| 4168 | m.type = type; |
| 4169 | m.size = data_len; |
| 4170 | m.index = index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4171 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4172 | if (data_len > MIB_MAX_DATA_BYTES) |
| 4173 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4174 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4175 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4176 | atmel_copy_to_host(priv->dev, data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4177 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
| 4178 | } |
| 4179 | |
| 4180 | static void atmel_writeAR(struct net_device *dev, u16 data) |
| 4181 | { |
| 4182 | int i; |
| 4183 | outw(data, dev->base_addr + AR); |
| 4184 | /* Address register appears to need some convincing..... */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4185 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4186 | outw(data, dev->base_addr + AR); |
| 4187 | } |
| 4188 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4189 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
David Woodhouse | 2f26e8a | 2008-05-24 00:09:29 +0100 | [diff] [blame] | 4190 | const unsigned char *src, u16 len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4191 | { |
| 4192 | int i; |
| 4193 | atmel_writeAR(dev, dest); |
| 4194 | if (dest % 2) { |
| 4195 | atmel_write8(dev, DR, *src); |
| 4196 | src++; len--; |
| 4197 | } |
| 4198 | for (i = len; i > 1 ; i -= 2) { |
| 4199 | u8 lb = *src++; |
| 4200 | u8 hb = *src++; |
| 4201 | atmel_write16(dev, DR, lb | (hb << 8)); |
| 4202 | } |
| 4203 | if (i) |
| 4204 | atmel_write8(dev, DR, *src); |
| 4205 | } |
| 4206 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4207 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
| 4208 | u16 src, u16 len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4209 | { |
| 4210 | int i; |
| 4211 | atmel_writeAR(dev, src); |
| 4212 | if (src % 2) { |
| 4213 | *dest = atmel_read8(dev, DR); |
| 4214 | dest++; len--; |
| 4215 | } |
| 4216 | for (i = len; i > 1 ; i -= 2) { |
| 4217 | u16 hw = atmel_read16(dev, DR); |
| 4218 | *dest++ = hw; |
| 4219 | *dest++ = hw >> 8; |
| 4220 | } |
| 4221 | if (i) |
| 4222 | *dest = atmel_read8(dev, DR); |
| 4223 | } |
| 4224 | |
| 4225 | static void atmel_set_gcr(struct net_device *dev, u16 mask) |
| 4226 | { |
| 4227 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); |
| 4228 | } |
| 4229 | |
| 4230 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) |
| 4231 | { |
| 4232 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); |
| 4233 | } |
| 4234 | |
| 4235 | static int atmel_lock_mac(struct atmel_private *priv) |
| 4236 | { |
| 4237 | int i, j = 20; |
| 4238 | retry: |
| 4239 | for (i = 5000; i; i--) { |
| 4240 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) |
| 4241 | break; |
| 4242 | udelay(20); |
| 4243 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4244 | |
| 4245 | if (!i) |
| 4246 | return 0; /* timed out */ |
| 4247 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4248 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
| 4249 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { |
| 4250 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4251 | if (!j--) |
| 4252 | return 0; /* timed out */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4253 | goto retry; |
| 4254 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4256 | return 1; |
| 4257 | } |
| 4258 | |
| 4259 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) |
| 4260 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4261 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4262 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
| 4263 | atmel_write16(priv->dev, DR, data >> 16); |
| 4264 | } |
| 4265 | |
| 4266 | /***************************************************************************/ |
| 4267 | /* There follows the source form of the MAC address reading firmware */ |
| 4268 | /***************************************************************************/ |
| 4269 | #if 0 |
| 4270 | |
| 4271 | /* Copyright 2003 Matthew T. Russotto */ |
| 4272 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ |
| 4273 | /* included in "atmel wireless lan drivers" package */ |
| 4274 | /** |
| 4275 | This file is part of net.russotto.AtmelMACFW, hereto referred to |
| 4276 | as AtmelMACFW |
| 4277 | |
| 4278 | AtmelMACFW is free software; you can redistribute it and/or modify |
| 4279 | it under the terms of the GNU General Public License version 2 |
| 4280 | as published by the Free Software Foundation. |
| 4281 | |
| 4282 | AtmelMACFW is distributed in the hope that it will be useful, |
| 4283 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4284 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 4285 | GNU General Public License for more details. |
| 4286 | |
| 4287 | You should have received a copy of the GNU General Public License |
| 4288 | along with AtmelMACFW; if not, write to the Free Software |
| 4289 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 4290 | |
| 4291 | ****************************************************************************/ |
| 4292 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ |
| 4293 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ |
| 4294 | /* It only works on SPI EEPROM versions of the card. */ |
| 4295 | |
| 4296 | /* This firmware initializes the SPI controller and clock, reads the MAC */ |
| 4297 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ |
| 4298 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ |
| 4299 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ |
| 4300 | /* MR4, for investigational purposes (maybe we can determine chip type */ |
| 4301 | /* from that?) */ |
| 4302 | |
| 4303 | .org 0 |
| 4304 | .set MRBASE, 0x8000000 |
| 4305 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ |
| 4306 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ |
| 4307 | .set SRAM_BASE, 0x02000000 |
| 4308 | .set SP_BASE, 0x0F300000 |
| 4309 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ |
| 4310 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ |
| 4311 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ |
| 4312 | .set STACK_BASE, 0x5600 |
| 4313 | .set SP_SR, 0x10 |
| 4314 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ |
| 4315 | .set SP_RDRF, 1 /* status register bit -- RDR full */ |
| 4316 | .set SP_SWRST, 0x80 |
| 4317 | .set SP_SPIEN, 0x1 |
| 4318 | .set SP_CR, 0 /* control register */ |
| 4319 | .set SP_MR, 4 /* mode register */ |
| 4320 | .set SP_RDR, 0x08 /* Read Data Register */ |
| 4321 | .set SP_TDR, 0x0C /* Transmit Data Register */ |
| 4322 | .set SP_CSR0, 0x30 /* chip select registers */ |
| 4323 | .set SP_CSR1, 0x34 |
| 4324 | .set SP_CSR2, 0x38 |
| 4325 | .set SP_CSR3, 0x3C |
| 4326 | .set NVRAM_CMD_RDSR, 5 /* read status register */ |
| 4327 | .set NVRAM_CMD_READ, 3 /* read data */ |
| 4328 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ |
| 4329 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the |
| 4330 | serial output, since SO is normally high. But it |
| 4331 | does cause 8 clock cycles and thus 8 bits to be |
| 4332 | clocked in to the chip. See Atmel's SPI |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4333 | controller (e.g. AT91M55800) timing and 4K |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4334 | SPI EEPROM manuals */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4336 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
| 4337 | .set NVRAM_IMAGE, 0x02000200 |
| 4338 | .set NVRAM_LENGTH, 0x0200 |
| 4339 | .set MAC_ADDRESS_MIB, SRAM_BASE |
| 4340 | .set MAC_ADDRESS_LENGTH, 6 |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4341 | .set MAC_BOOT_FLAG, 0x10 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4342 | .set MR1, 0 |
| 4343 | .set MR2, 4 |
| 4344 | .set MR3, 8 |
| 4345 | .set MR4, 0xC |
| 4346 | RESET_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4347 | b RESET_HANDLER |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4348 | UNDEF_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4349 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4350 | SWI_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4351 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4352 | IABORT_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4353 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4354 | DABORT_VECTOR: |
| 4355 | RESERVED_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4356 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4357 | IRQ_VECTOR: |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4358 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4359 | FIQ_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4360 | b HALT1 |
| 4361 | HALT1: b HALT1 |
| 4362 | RESET_HANDLER: |
| 4363 | mov r0, #CPSR_INITIAL |
| 4364 | msr CPSR_c, r0 /* This is probably unnecessary */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4365 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4366 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
| 4367 | ldr r0, =SPI_CGEN_BASE |
| 4368 | mov r1, #0 |
| 4369 | mov r1, r1, lsl #3 |
John Daiker | 8830cb6 | 2009-03-08 22:18:35 -0700 | [diff] [blame] | 4370 | orr r1, r1, #0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4371 | str r1, [r0] |
| 4372 | ldr r1, [r0, #28] |
| 4373 | bic r1, r1, #16 |
| 4374 | str r1, [r0, #28] |
| 4375 | mov r1, #1 |
| 4376 | str r1, [r0, #8] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4377 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4378 | ldr r0, =MRBASE |
| 4379 | mov r1, #0 |
| 4380 | strh r1, [r0, #MR1] |
| 4381 | strh r1, [r0, #MR2] |
| 4382 | strh r1, [r0, #MR3] |
| 4383 | strh r1, [r0, #MR4] |
| 4384 | |
| 4385 | mov sp, #STACK_BASE |
| 4386 | bl SP_INIT |
| 4387 | mov r0, #10 |
| 4388 | bl DELAY9 |
| 4389 | bl GET_MAC_ADDR |
| 4390 | bl GET_WHOLE_NVRAM |
| 4391 | ldr r0, =MRBASE |
| 4392 | ldr r1, =MAC_ADDRESS_MIB |
| 4393 | strh r1, [r0, #MR2] |
| 4394 | ldr r1, =NVRAM_IMAGE |
| 4395 | strh r1, [r0, #MR4] |
| 4396 | mov r1, #MAC_BOOT_FLAG |
| 4397 | strh r1, [r0, #MR3] |
| 4398 | HALT2: b HALT2 |
| 4399 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM |
| 4400 | GET_WHOLE_NVRAM: |
| 4401 | stmdb sp!, {lr} |
| 4402 | mov r2, #0 /* 0th bytes of NVRAM */ |
| 4403 | mov r3, #NVRAM_LENGTH |
| 4404 | mov r1, #0 /* not used in routine */ |
| 4405 | ldr r0, =NVRAM_IMAGE |
| 4406 | bl NVRAM_XFER |
| 4407 | ldmia sp!, {lr} |
| 4408 | bx lr |
| 4409 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4410 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4411 | .func Get_MAC_Addr, GET_MAC_ADDR |
| 4412 | GET_MAC_ADDR: |
| 4413 | stmdb sp!, {lr} |
| 4414 | mov r2, #0x120 /* address of MAC Address within NVRAM */ |
| 4415 | mov r3, #MAC_ADDRESS_LENGTH |
| 4416 | mov r1, #0 /* not used in routine */ |
| 4417 | ldr r0, =MAC_ADDRESS_MIB |
| 4418 | bl NVRAM_XFER |
| 4419 | ldmia sp!, {lr} |
| 4420 | bx lr |
| 4421 | .endfunc |
| 4422 | .ltorg |
| 4423 | .func Delay9, DELAY9 |
| 4424 | DELAY9: |
| 4425 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4426 | DELAYLOOP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4427 | beq DELAY9_done |
| 4428 | subs r0, r0, #1 |
| 4429 | b DELAYLOOP |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4430 | DELAY9_done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4431 | bx lr |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4432 | .endfunc |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4433 | |
| 4434 | .func SP_Init, SP_INIT |
| 4435 | SP_INIT: |
| 4436 | mov r1, #SP_SWRST |
| 4437 | ldr r0, =SP_BASE |
| 4438 | str r1, [r0, #SP_CR] /* reset the SPI */ |
| 4439 | mov r1, #0 |
| 4440 | str r1, [r0, #SP_CR] /* release SPI from reset state */ |
| 4441 | mov r1, #SP_SPIEN |
| 4442 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ |
| 4443 | str r1, [r0, #SP_CR] /* enable the SPI */ |
| 4444 | |
| 4445 | /* My guess would be this turns on the SPI clock */ |
| 4446 | ldr r3, =SPI_CGEN_BASE |
| 4447 | ldr r1, [r3, #28] |
| 4448 | orr r1, r1, #0x2000 |
| 4449 | str r1, [r3, #28] |
| 4450 | |
| 4451 | ldr r1, =0x2000c01 |
| 4452 | str r1, [r0, #SP_CSR0] |
| 4453 | ldr r1, =0x2000201 |
| 4454 | str r1, [r0, #SP_CSR1] |
| 4455 | str r1, [r0, #SP_CSR2] |
| 4456 | str r1, [r0, #SP_CSR3] |
| 4457 | ldr r1, [r0, #SP_SR] |
| 4458 | ldr r0, [r0, #SP_RDR] |
| 4459 | bx lr |
| 4460 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4461 | .func NVRAM_Init, NVRAM_INIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4462 | NVRAM_INIT: |
| 4463 | ldr r1, =SP_BASE |
| 4464 | ldr r0, [r1, #SP_RDR] |
| 4465 | mov r0, #NVRAM_CMD_RDSR |
| 4466 | str r0, [r1, #SP_TDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4467 | SP_loop1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4468 | ldr r0, [r1, #SP_SR] |
| 4469 | tst r0, #SP_TDRE |
| 4470 | beq SP_loop1 |
| 4471 | |
| 4472 | mov r0, #SPI_8CLOCKS |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4473 | str r0, [r1, #SP_TDR] |
| 4474 | SP_loop2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4475 | ldr r0, [r1, #SP_SR] |
| 4476 | tst r0, #SP_TDRE |
| 4477 | beq SP_loop2 |
| 4478 | |
| 4479 | ldr r0, [r1, #SP_RDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4480 | SP_loop3: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4481 | ldr r0, [r1, #SP_SR] |
| 4482 | tst r0, #SP_RDRF |
| 4483 | beq SP_loop3 |
| 4484 | |
| 4485 | ldr r0, [r1, #SP_RDR] |
| 4486 | and r0, r0, #255 |
| 4487 | bx lr |
| 4488 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4489 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4490 | .func NVRAM_Xfer, NVRAM_XFER |
| 4491 | /* r0 = dest address */ |
| 4492 | /* r1 = not used */ |
| 4493 | /* r2 = src address within NVRAM */ |
| 4494 | /* r3 = length */ |
| 4495 | NVRAM_XFER: |
| 4496 | stmdb sp!, {r4, r5, lr} |
| 4497 | mov r5, r0 /* save r0 (dest address) */ |
| 4498 | mov r4, r3 /* save r3 (length) */ |
| 4499 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ |
| 4500 | and r0, r0, #8 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4501 | add r0, r0, #NVRAM_CMD_READ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4502 | ldr r1, =NVRAM_SCRATCH |
| 4503 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ |
| 4504 | strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4505 | _local1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4506 | bl NVRAM_INIT |
| 4507 | tst r0, #NVRAM_SR_RDY |
| 4508 | bne _local1 |
| 4509 | mov r0, #20 |
| 4510 | bl DELAY9 |
| 4511 | mov r2, r4 /* length */ |
| 4512 | mov r1, r5 /* dest address */ |
| 4513 | mov r0, #2 /* bytes to transfer in command */ |
| 4514 | bl NVRAM_XFER2 |
| 4515 | ldmia sp!, {r4, r5, lr} |
| 4516 | bx lr |
| 4517 | .endfunc |
| 4518 | |
| 4519 | .func NVRAM_Xfer2, NVRAM_XFER2 |
| 4520 | NVRAM_XFER2: |
| 4521 | stmdb sp!, {r4, r5, r6, lr} |
| 4522 | ldr r4, =SP_BASE |
| 4523 | mov r3, #0 |
| 4524 | cmp r0, #0 |
| 4525 | bls _local2 |
| 4526 | ldr r5, =NVRAM_SCRATCH |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4527 | _local4: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4528 | ldrb r6, [r5, r3] |
| 4529 | str r6, [r4, #SP_TDR] |
| 4530 | _local3: |
| 4531 | ldr r6, [r4, #SP_SR] |
| 4532 | tst r6, #SP_TDRE |
| 4533 | beq _local3 |
| 4534 | add r3, r3, #1 |
| 4535 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ |
| 4536 | blo _local4 |
| 4537 | _local2: |
| 4538 | mov r3, #SPI_8CLOCKS |
| 4539 | str r3, [r4, #SP_TDR] |
| 4540 | ldr r0, [r4, #SP_RDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4541 | _local5: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4542 | ldr r0, [r4, #SP_SR] |
| 4543 | tst r0, #SP_RDRF |
| 4544 | beq _local5 |
| 4545 | ldr r0, [r4, #SP_RDR] /* what's this byte? It's the byte read while writing the TDR -- nonsense, because the NVRAM doesn't read and write at the same time */ |
| 4546 | mov r0, #0 |
| 4547 | cmp r2, #0 /* r2 is # of bytes to copy in */ |
| 4548 | bls _local6 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4549 | _local7: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4550 | ldr r5, [r4, #SP_SR] |
| 4551 | tst r5, #SP_TDRE |
| 4552 | beq _local7 |
| 4553 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4554 | _local8: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4555 | ldr r5, [r4, #SP_SR] |
| 4556 | tst r5, #SP_RDRF |
| 4557 | beq _local8 |
| 4558 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ |
| 4559 | strb r5, [r1], #1 /* postindexed */ |
| 4560 | add r0, r0, #1 |
| 4561 | cmp r0, r2 |
| 4562 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ |
| 4563 | _local6: |
| 4564 | mov r0, #200 |
| 4565 | bl DELAY9 |
| 4566 | ldmia sp!, {r4, r5, r6, lr} |
| 4567 | bx lr |
| 4568 | #endif |