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 | |
| 5 | Copyright 2000-2001 ATMEL Corporation. |
| 6 | Copyright 2003-2004 Simon Kelley. |
| 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 | |
| 42 | #include <linux/config.h> |
| 43 | #include <linux/init.h> |
| 44 | |
| 45 | #include <linux/kernel.h> |
| 46 | #include <linux/sched.h> |
| 47 | #include <linux/ptrace.h> |
| 48 | #include <linux/slab.h> |
| 49 | #include <linux/string.h> |
| 50 | #include <linux/ctype.h> |
| 51 | #include <linux/timer.h> |
| 52 | #include <asm/io.h> |
| 53 | #include <asm/system.h> |
| 54 | #include <asm/uaccess.h> |
| 55 | #include <linux/module.h> |
| 56 | #include <linux/netdevice.h> |
| 57 | #include <linux/etherdevice.h> |
| 58 | #include <linux/skbuff.h> |
| 59 | #include <linux/if_arp.h> |
| 60 | #include <linux/ioport.h> |
| 61 | #include <linux/fcntl.h> |
| 62 | #include <linux/delay.h> |
| 63 | #include <linux/wireless.h> |
| 64 | #include <net/iw_handler.h> |
| 65 | #include <linux/byteorder/generic.h> |
| 66 | #include <linux/crc32.h> |
| 67 | #include <linux/proc_fs.h> |
| 68 | #include <linux/device.h> |
| 69 | #include <linux/moduleparam.h> |
| 70 | #include <linux/firmware.h> |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 71 | #include <net/ieee80211.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | #include "atmel.h" |
| 73 | |
| 74 | #define DRIVER_MAJOR 0 |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 75 | #define DRIVER_MINOR 98 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
| 77 | MODULE_AUTHOR("Simon Kelley"); |
| 78 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); |
| 79 | MODULE_LICENSE("GPL"); |
| 80 | MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards"); |
| 81 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 82 | /* The name of the firmware file to be loaded |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | over-rides any automatic selection */ |
| 84 | static char *firmware = NULL; |
| 85 | module_param(firmware, charp, 0); |
| 86 | |
| 87 | /* table of firmware file names */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 88 | static struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | AtmelFWType fw_type; |
| 90 | const char *fw_file; |
| 91 | const char *fw_file_ext; |
| 92 | } fw_table[] = { |
| 93 | { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" }, |
| 94 | { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" }, |
| 95 | { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" }, |
| 96 | { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" }, |
| 97 | { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" }, |
| 98 | { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" }, |
| 99 | { ATMEL_FW_TYPE_504A_2958,"atmel_at76c504a_2958","bin" }, |
| 100 | { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" }, |
| 101 | { ATMEL_FW_TYPE_NONE, NULL, NULL } |
| 102 | }; |
| 103 | |
| 104 | #define MAX_SSID_LENGTH 32 |
| 105 | #define MGMT_JIFFIES (256 * HZ / 100) |
| 106 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 107 | #define MAX_BSS_ENTRIES 64 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
| 109 | /* registers */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 110 | #define GCR 0x00 // (SIR0) General Configuration Register |
| 111 | #define BSR 0x02 // (SIR1) Bank Switching Select Register |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | #define AR 0x04 |
| 113 | #define DR 0x08 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 114 | #define MR1 0x12 // Mirror Register 1 |
| 115 | #define MR2 0x14 // Mirror Register 2 |
| 116 | #define MR3 0x16 // Mirror Register 3 |
| 117 | #define MR4 0x18 // Mirror Register 4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
| 119 | #define GPR1 0x0c |
| 120 | #define GPR2 0x0e |
| 121 | #define GPR3 0x10 |
| 122 | // |
| 123 | // Constants for the GCR register. |
| 124 | // |
| 125 | #define GCR_REMAP 0x0400 // Remap internal SRAM to 0 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 126 | #define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | #define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 128 | #define GCR_ENINT 0x0002 // Enable Interrupts |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | #define GCR_ACKINT 0x0008 // Acknowledge Interrupts |
| 130 | |
| 131 | #define BSS_SRAM 0x0200 // AMBA module selection --> SRAM |
| 132 | #define BSS_IRAM 0x0100 // AMBA module selection --> IRAM |
| 133 | // |
| 134 | // Constants for the MR registers. |
| 135 | // |
| 136 | #define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed |
| 137 | #define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed |
| 138 | #define MAC_INIT_OK 0x0002 // MAC boot has been completed |
| 139 | |
| 140 | #define C80211_SUBTYPE_MGMT_ASS_REQUEST 0x00 |
| 141 | #define C80211_SUBTYPE_MGMT_ASS_RESPONSE 0x10 |
| 142 | #define C80211_SUBTYPE_MGMT_REASS_REQUEST 0x20 |
| 143 | #define C80211_SUBTYPE_MGMT_REASS_RESPONSE 0x30 |
| 144 | #define C80211_SUBTYPE_MGMT_ProbeRequest 0x40 |
| 145 | #define C80211_SUBTYPE_MGMT_ProbeResponse 0x50 |
| 146 | #define C80211_SUBTYPE_MGMT_BEACON 0x80 |
| 147 | #define C80211_SUBTYPE_MGMT_ATIM 0x90 |
| 148 | #define C80211_SUBTYPE_MGMT_DISASSOSIATION 0xA0 |
| 149 | #define C80211_SUBTYPE_MGMT_Authentication 0xB0 |
| 150 | #define C80211_SUBTYPE_MGMT_Deauthentication 0xC0 |
| 151 | |
| 152 | #define C80211_MGMT_AAN_OPENSYSTEM 0x0000 |
| 153 | #define C80211_MGMT_AAN_SHAREDKEY 0x0001 |
| 154 | |
| 155 | #define C80211_MGMT_CAPABILITY_ESS 0x0001 // see 802.11 p.58 |
| 156 | #define C80211_MGMT_CAPABILITY_IBSS 0x0002 // - " - |
| 157 | #define C80211_MGMT_CAPABILITY_CFPollable 0x0004 // - " - |
| 158 | #define C80211_MGMT_CAPABILITY_CFPollRequest 0x0008 // - " - |
| 159 | #define C80211_MGMT_CAPABILITY_Privacy 0x0010 // - " - |
| 160 | |
| 161 | #define C80211_MGMT_SC_Success 0 |
| 162 | #define C80211_MGMT_SC_Unspecified 1 |
| 163 | #define C80211_MGMT_SC_SupportCapabilities 10 |
| 164 | #define C80211_MGMT_SC_ReassDenied 11 |
| 165 | #define C80211_MGMT_SC_AssDenied 12 |
| 166 | #define C80211_MGMT_SC_AuthAlgNotSupported 13 |
| 167 | #define C80211_MGMT_SC_AuthTransSeqNumError 14 |
| 168 | #define C80211_MGMT_SC_AuthRejectChallenge 15 |
| 169 | #define C80211_MGMT_SC_AuthRejectTimeout 16 |
| 170 | #define C80211_MGMT_SC_AssDeniedHandleAP 17 |
| 171 | #define C80211_MGMT_SC_AssDeniedBSSRate 18 |
| 172 | |
| 173 | #define C80211_MGMT_ElementID_SSID 0 |
| 174 | #define C80211_MGMT_ElementID_SupportedRates 1 |
| 175 | #define C80211_MGMT_ElementID_ChallengeText 16 |
| 176 | #define C80211_MGMT_CAPABILITY_ShortPreamble 0x0020 |
| 177 | |
| 178 | #define MIB_MAX_DATA_BYTES 212 |
| 179 | #define MIB_HEADER_SIZE 4 /* first four fields */ |
| 180 | |
| 181 | struct get_set_mib { |
| 182 | u8 type; |
| 183 | u8 size; |
| 184 | u8 index; |
| 185 | u8 reserved; |
| 186 | u8 data[MIB_MAX_DATA_BYTES]; |
| 187 | }; |
| 188 | |
| 189 | struct rx_desc { |
| 190 | u32 Next; |
| 191 | u16 MsduPos; |
| 192 | u16 MsduSize; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | u8 State; |
| 195 | u8 Status; |
| 196 | u8 Rate; |
| 197 | u8 Rssi; |
| 198 | u8 LinkQuality; |
| 199 | u8 PreambleType; |
| 200 | u16 Duration; |
| 201 | u32 RxTime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | }; |
| 203 | |
| 204 | #define RX_DESC_FLAG_VALID 0x80 |
| 205 | #define RX_DESC_FLAG_CONSUMED 0x40 |
| 206 | #define RX_DESC_FLAG_IDLE 0x00 |
| 207 | |
| 208 | #define RX_STATUS_SUCCESS 0x00 |
| 209 | |
| 210 | #define RX_DESC_MSDU_POS_OFFSET 4 |
| 211 | #define RX_DESC_MSDU_SIZE_OFFSET 6 |
| 212 | #define RX_DESC_FLAGS_OFFSET 8 |
| 213 | #define RX_DESC_STATUS_OFFSET 9 |
| 214 | #define RX_DESC_RSSI_OFFSET 11 |
| 215 | #define RX_DESC_LINK_QUALITY_OFFSET 12 |
| 216 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 |
| 217 | #define RX_DESC_DURATION_OFFSET 14 |
| 218 | #define RX_DESC_RX_TIME_OFFSET 16 |
| 219 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | struct tx_desc { |
| 221 | u32 NextDescriptor; |
| 222 | u16 TxStartOfFrame; |
| 223 | u16 TxLength; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 224 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | u8 TxState; |
| 226 | u8 TxStatus; |
| 227 | u8 RetryCount; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | u8 TxRate; |
| 230 | |
| 231 | u8 KeyIndex; |
| 232 | u8 ChiperType; |
| 233 | u8 ChipreLength; |
| 234 | u8 Reserved1; |
| 235 | |
| 236 | u8 Reserved; |
| 237 | u8 PacketType; |
| 238 | u16 HostTxLength; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | }; |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | #define TX_DESC_NEXT_OFFSET 0 |
| 242 | #define TX_DESC_POS_OFFSET 4 |
| 243 | #define TX_DESC_SIZE_OFFSET 6 |
| 244 | #define TX_DESC_FLAGS_OFFSET 8 |
| 245 | #define TX_DESC_STATUS_OFFSET 9 |
| 246 | #define TX_DESC_RETRY_OFFSET 10 |
| 247 | #define TX_DESC_RATE_OFFSET 11 |
| 248 | #define TX_DESC_KEY_INDEX_OFFSET 12 |
| 249 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 |
| 250 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 |
| 251 | #define TX_DESC_PACKET_TYPE_OFFSET 17 |
| 252 | #define TX_DESC_HOST_LENGTH_OFFSET 18 |
| 253 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | /////////////////////////////////////////////////////// |
| 255 | // Host-MAC interface |
| 256 | /////////////////////////////////////////////////////// |
| 257 | |
| 258 | #define TX_STATUS_SUCCESS 0x00 |
| 259 | |
| 260 | #define TX_FIRM_OWN 0x80 |
| 261 | #define TX_DONE 0x40 |
| 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | #define TX_ERROR 0x01 |
| 264 | |
| 265 | #define TX_PACKET_TYPE_DATA 0x01 |
| 266 | #define TX_PACKET_TYPE_MGMT 0x02 |
| 267 | |
| 268 | #define ISR_EMPTY 0x00 // no bits set in ISR |
| 269 | #define ISR_TxCOMPLETE 0x01 // packet transmitted |
| 270 | #define ISR_RxCOMPLETE 0x02 // packet received |
| 271 | #define ISR_RxFRAMELOST 0x04 // Rx Frame lost |
| 272 | #define ISR_FATAL_ERROR 0x08 // Fatal error |
| 273 | #define ISR_COMMAND_COMPLETE 0x10 // command completed |
| 274 | #define ISR_OUT_OF_RANGE 0x20 // command completed |
| 275 | #define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 276 | #define ISR_GENERIC_IRQ 0x80 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
| 278 | #define Local_Mib_Type 0x01 |
| 279 | #define Mac_Address_Mib_Type 0x02 |
| 280 | #define Mac_Mib_Type 0x03 |
| 281 | #define Statistics_Mib_Type 0x04 |
| 282 | #define Mac_Mgmt_Mib_Type 0x05 |
| 283 | #define Mac_Wep_Mib_Type 0x06 |
| 284 | #define Phy_Mib_Type 0x07 |
| 285 | #define Multi_Domain_MIB 0x08 |
| 286 | |
| 287 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 |
| 288 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 |
| 289 | #define MAC_MIB_RTS_THRESHOLD_POS 10 |
| 290 | #define MAC_MIB_SHORT_RETRY_POS 16 |
| 291 | #define MAC_MIB_LONG_RETRY_POS 17 |
| 292 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 |
| 293 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 |
| 294 | #define MAC_MGMT_MIB_STATION_ID_POS 6 |
| 295 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 |
| 296 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 |
| 297 | #define MAC_MGMT_MIB_PS_MODE_POS 53 |
| 298 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 |
| 299 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 |
| 300 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 |
| 301 | #define PHY_MIB_CHANNEL_POS 14 |
| 302 | #define PHY_MIB_RATE_SET_POS 20 |
| 303 | #define PHY_MIB_REG_DOMAIN_POS 26 |
| 304 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 |
| 305 | #define LOCAL_MIB_SSID_SIZE 5 |
| 306 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 |
| 307 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 |
| 308 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 |
| 309 | #define LOCAL_MIB_PREAMBLE_TYPE 9 |
| 310 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 |
| 311 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | #define CMD_Set_MIB_Vars 0x01 |
| 313 | #define CMD_Get_MIB_Vars 0x02 |
| 314 | #define CMD_Scan 0x03 |
| 315 | #define CMD_Join 0x04 |
| 316 | #define CMD_Start 0x05 |
| 317 | #define CMD_EnableRadio 0x06 |
| 318 | #define CMD_DisableRadio 0x07 |
| 319 | #define CMD_SiteSurvey 0x0B |
| 320 | |
| 321 | #define CMD_STATUS_IDLE 0x00 |
| 322 | #define CMD_STATUS_COMPLETE 0x01 |
| 323 | #define CMD_STATUS_UNKNOWN 0x02 |
| 324 | #define CMD_STATUS_INVALID_PARAMETER 0x03 |
| 325 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 |
| 326 | #define CMD_STATUS_TIME_OUT 0x07 |
| 327 | #define CMD_STATUS_IN_PROGRESS 0x08 |
| 328 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 |
| 329 | #define CMD_STATUS_HOST_ERROR 0xFF |
| 330 | #define CMD_STATUS_BUSY 0xFE |
| 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
| 333 | #define CMD_BLOCK_STATUS_OFFSET 1 |
| 334 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 |
| 335 | |
| 336 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 |
| 337 | |
| 338 | #define MGMT_FRAME_BODY_OFFSET 24 |
| 339 | #define MAX_AUTHENTICATION_RETRIES 3 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 340 | #define MAX_ASSOCIATION_RETRIES 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | |
| 342 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 |
| 343 | |
| 344 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ |
| 345 | #define LOOP_RETRY_LIMIT 500000 |
| 346 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 347 | #define ACTIVE_MODE 1 |
| 348 | #define PS_MODE 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | |
| 350 | #define MAX_ENCRYPTION_KEYS 4 |
| 351 | #define MAX_ENCRYPTION_KEY_SIZE 40 |
| 352 | |
| 353 | /////////////////////////////////////////////////////////////////////////// |
| 354 | // 802.11 related definitions |
| 355 | /////////////////////////////////////////////////////////////////////////// |
| 356 | |
| 357 | // |
| 358 | // Regulatory Domains |
| 359 | // |
| 360 | |
| 361 | #define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA |
| 362 | #define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada |
| 363 | #define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France) |
| 364 | #define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain |
| 365 | #define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France |
| 366 | #define REG_DOMAIN_MKK 0x40 //Channel 14 Japan |
| 367 | #define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1) |
| 368 | #define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL |
| 369 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 370 | #define BSS_TYPE_AD_HOC 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | #define BSS_TYPE_INFRASTRUCTURE 2 |
| 372 | |
| 373 | #define SCAN_TYPE_ACTIVE 0 |
| 374 | #define SCAN_TYPE_PASSIVE 1 |
| 375 | |
| 376 | #define LONG_PREAMBLE 0 |
| 377 | #define SHORT_PREAMBLE 1 |
| 378 | #define AUTO_PREAMBLE 2 |
| 379 | |
| 380 | #define DATA_FRAME_WS_HEADER_SIZE 30 |
| 381 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 382 | /* promiscuous mode control */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | #define PROM_MODE_OFF 0x0 |
| 384 | #define PROM_MODE_UNKNOWN 0x1 |
| 385 | #define PROM_MODE_CRC_FAILED 0x2 |
| 386 | #define PROM_MODE_DUPLICATED 0x4 |
| 387 | #define PROM_MODE_MGMT 0x8 |
| 388 | #define PROM_MODE_CTRL 0x10 |
| 389 | #define PROM_MODE_BAD_PROTOCOL 0x20 |
| 390 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 391 | #define IFACE_INT_STATUS_OFFSET 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | #define IFACE_INT_MASK_OFFSET 1 |
| 393 | #define IFACE_LOCKOUT_HOST_OFFSET 2 |
| 394 | #define IFACE_LOCKOUT_MAC_OFFSET 3 |
| 395 | #define IFACE_FUNC_CTRL_OFFSET 28 |
| 396 | #define IFACE_MAC_STAT_OFFSET 30 |
| 397 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 |
| 398 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 399 | #define CIPHER_SUITE_NONE 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | #define CIPHER_SUITE_WEP_64 1 |
| 401 | #define CIPHER_SUITE_TKIP 2 |
| 402 | #define CIPHER_SUITE_AES 3 |
| 403 | #define CIPHER_SUITE_CCX 4 |
| 404 | #define CIPHER_SUITE_WEP_128 5 |
| 405 | |
| 406 | // |
| 407 | // IFACE MACROS & definitions |
| 408 | // |
| 409 | // |
| 410 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 411 | // FuncCtrl field: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | // |
| 413 | #define FUNC_CTRL_TxENABLE 0x10 |
| 414 | #define FUNC_CTRL_RxENABLE 0x20 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 415 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
| 417 | /* A stub firmware image which reads the MAC address from NVRAM on the card. |
| 418 | For copyright information and source see the end of this file. */ |
| 419 | static u8 mac_reader[] = { |
| 420 | 0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea, |
| 421 | 0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea, |
| 422 | 0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3, |
| 423 | 0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5, |
| 424 | 0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5, |
| 425 | 0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1, |
| 426 | 0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb, |
| 427 | 0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb, |
| 428 | 0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5, |
| 429 | 0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea, |
| 430 | 0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3, |
| 431 | 0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, |
| 432 | 0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3, |
| 433 | 0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, |
| 434 | 0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2, |
| 435 | 0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3, |
| 436 | 0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3, |
| 437 | 0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5, |
| 438 | 0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5, |
| 439 | 0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5, |
| 440 | 0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3, |
| 441 | 0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5, |
| 442 | 0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5, |
| 443 | 0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, |
| 444 | 0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, |
| 445 | 0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1, |
| 446 | 0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2, |
| 447 | 0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb, |
| 448 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb, |
| 449 | 0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb, |
| 450 | 0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3, |
| 451 | 0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5, |
| 452 | 0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3, |
| 453 | 0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a, |
| 454 | 0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5, |
| 455 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3, |
| 456 | 0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3, |
| 457 | 0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3, |
| 458 | 0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2, |
| 459 | 0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb, |
| 460 | 0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02, |
| 461 | 0x00,0x01,0x00,0x02 |
| 462 | }; |
| 463 | |
| 464 | struct atmel_private { |
| 465 | void *card; /* Bus dependent stucture varies for PCcard */ |
| 466 | int (*present_callback)(void *); /* And callback which uses it */ |
| 467 | char firmware_id[32]; |
| 468 | AtmelFWType firmware_type; |
| 469 | u8 *firmware; |
| 470 | int firmware_length; |
| 471 | struct timer_list management_timer; |
| 472 | struct net_device *dev; |
| 473 | struct device *sys_dev; |
| 474 | struct iw_statistics wstats; |
| 475 | struct net_device_stats stats; // device stats |
| 476 | spinlock_t irqlock, timerlock; // spinlocks |
| 477 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 478 | enum { |
| 479 | CARD_TYPE_PARALLEL_FLASH, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | CARD_TYPE_SPI_FLASH, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 481 | CARD_TYPE_EEPROM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | } card_type; |
| 483 | int do_rx_crc; /* If we need to CRC incoming packets */ |
| 484 | int probe_crc; /* set if we don't yet know */ |
| 485 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ |
| 486 | u16 rx_desc_head; |
| 487 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; |
| 488 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 489 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | u16 frag_seq, frag_len, frag_no; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 491 | u8 frag_source[6]; |
| 492 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
| 494 | u8 group_cipher_suite, pairwise_cipher_suite; |
| 495 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 496 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
| 498 | |
| 499 | u16 host_info_base; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 500 | struct host_info_struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | /* NB this is matched to the hardware, don't change. */ |
| 502 | u8 volatile int_status; |
| 503 | u8 volatile int_mask; |
| 504 | u8 volatile lockout_host; |
| 505 | u8 volatile lockout_mac; |
| 506 | |
| 507 | u16 tx_buff_pos; |
| 508 | u16 tx_buff_size; |
| 509 | u16 tx_desc_pos; |
| 510 | u16 tx_desc_count; |
| 511 | |
| 512 | u16 rx_buff_pos; |
| 513 | u16 rx_buff_size; |
| 514 | u16 rx_desc_pos; |
| 515 | u16 rx_desc_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 516 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | u16 build_version; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 518 | u16 command_pos; |
| 519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | u16 major_version; |
| 521 | u16 minor_version; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 522 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | u16 func_ctrl; |
| 524 | u16 mac_status; |
| 525 | u16 generic_IRQ_type; |
| 526 | u8 reserved[2]; |
| 527 | } host_info; |
| 528 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 529 | enum { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | STATION_STATE_SCANNING, |
| 531 | STATION_STATE_JOINNING, |
| 532 | STATION_STATE_AUTHENTICATING, |
| 533 | STATION_STATE_ASSOCIATING, |
| 534 | STATION_STATE_READY, |
| 535 | STATION_STATE_REASSOCIATING, |
| 536 | STATION_STATE_DOWN, |
| 537 | STATION_STATE_MGMT_ERROR |
| 538 | } station_state; |
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 | int operating_mode, power_mode; |
| 541 | time_t last_qual; |
| 542 | int beacons_this_sec; |
| 543 | int channel; |
| 544 | int reg_domain, config_reg_domain; |
| 545 | int tx_rate; |
| 546 | int auto_tx_rate; |
| 547 | int rts_threshold; |
| 548 | int frag_threshold; |
| 549 | int long_retry, short_retry; |
| 550 | int preamble; |
| 551 | int default_beacon_period, beacon_period, listen_interval; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 552 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
| 554 | enum { |
| 555 | SITE_SURVEY_IDLE, |
| 556 | SITE_SURVEY_IN_PROGRESS, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 557 | SITE_SURVEY_COMPLETED |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | } site_survey_state; |
| 559 | time_t last_survey; |
| 560 | |
| 561 | int station_was_associated, station_is_associated; |
| 562 | int fast_scan; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | struct bss_info { |
| 565 | int channel; |
| 566 | int SSIDsize; |
| 567 | int RSSI; |
| 568 | int UsingWEP; |
| 569 | int preamble; |
| 570 | int beacon_period; |
| 571 | int BSStype; |
| 572 | u8 BSSID[6]; |
| 573 | u8 SSID[MAX_SSID_LENGTH]; |
| 574 | } BSSinfo[MAX_BSS_ENTRIES]; |
| 575 | int BSS_list_entries, current_BSS; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 576 | int connect_to_any_BSS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | int SSID_size, new_SSID_size; |
| 578 | u8 CurrentBSSID[6], BSSID[6]; |
| 579 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; |
| 580 | u64 last_beacon_timestamp; |
| 581 | u8 rx_buf[MAX_WIRELESS_BODY]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | }; |
| 583 | |
| 584 | static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16}; |
| 585 | |
| 586 | static const struct { |
| 587 | int reg_domain; |
| 588 | int min, max; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 589 | char *name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
| 591 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, |
| 592 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, |
| 593 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 594 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
| 596 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, |
| 597 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; |
| 598 | |
| 599 | static void build_wpa_mib(struct atmel_private *priv); |
| 600 | 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] | 601 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
| 602 | unsigned char *src, u16 len); |
| 603 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
| 604 | u16 src, u16 len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
| 606 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); |
| 607 | static int atmel_lock_mac(struct atmel_private *priv); |
| 608 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); |
| 609 | static void atmel_command_irq(struct atmel_private *priv); |
| 610 | static int atmel_validate_channel(struct atmel_private *priv, int channel); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 611 | static void atmel_management_frame(struct atmel_private *priv, |
| 612 | struct ieee80211_hdr_4addr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | u16 frame_len, u8 rssi); |
| 614 | static void atmel_management_timer(u_long a); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 615 | static void atmel_send_command(struct atmel_private *priv, int command, |
| 616 | void *cmd, int cmd_size); |
| 617 | static int atmel_send_command_wait(struct atmel_private *priv, int command, |
| 618 | void *cmd, int cmd_size); |
| 619 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
| 620 | struct ieee80211_hdr_4addr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | u8 *body, int body_len); |
| 622 | |
| 623 | 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] | 624 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
| 625 | u8 data); |
| 626 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
| 627 | u16 data); |
| 628 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
| 629 | u8 *data, int data_len); |
| 630 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
| 631 | u8 *data, int data_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
| 633 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); |
| 634 | static void atmel_smooth_qual(struct atmel_private *priv); |
| 635 | static void atmel_writeAR(struct net_device *dev, u16 data); |
| 636 | static int probe_atmel_card(struct net_device *dev); |
| 637 | static int reset_atmel_card(struct net_device *dev ); |
| 638 | static void atmel_enter_state(struct atmel_private *priv, int new_state); |
| 639 | int atmel_open (struct net_device *dev); |
| 640 | |
| 641 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) |
| 642 | { |
| 643 | return priv->host_info_base + offset; |
| 644 | } |
| 645 | |
| 646 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) |
| 647 | { |
| 648 | return priv->host_info.command_pos + offset; |
| 649 | } |
| 650 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 651 | 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] | 652 | { |
| 653 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; |
| 654 | } |
| 655 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 656 | 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] | 657 | { |
| 658 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; |
| 659 | } |
| 660 | |
| 661 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) |
| 662 | { |
| 663 | return inb(dev->base_addr + offset); |
| 664 | } |
| 665 | |
| 666 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) |
| 667 | { |
| 668 | outb(data, dev->base_addr + offset); |
| 669 | } |
| 670 | |
| 671 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) |
| 672 | { |
| 673 | return inw(dev->base_addr + offset); |
| 674 | } |
| 675 | |
| 676 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) |
| 677 | { |
| 678 | outw(data, dev->base_addr + offset); |
| 679 | } |
| 680 | |
| 681 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) |
| 682 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 683 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | return atmel_read8(priv->dev, DR); |
| 685 | } |
| 686 | |
| 687 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) |
| 688 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 689 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | atmel_write8(priv->dev, DR, data); |
| 691 | } |
| 692 | |
| 693 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) |
| 694 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 695 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | return atmel_read16(priv->dev, DR); |
| 697 | } |
| 698 | |
| 699 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) |
| 700 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 701 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | atmel_write16(priv->dev, DR, data); |
| 703 | } |
| 704 | |
| 705 | static const struct iw_handler_def atmel_handler_def; |
| 706 | |
| 707 | static void tx_done_irq(struct atmel_private *priv) |
| 708 | { |
| 709 | int i; |
| 710 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 711 | for (i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
| 713 | i < priv->host_info.tx_desc_count; |
| 714 | i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
| 716 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); |
| 717 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); |
| 718 | |
| 719 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); |
| 720 | |
| 721 | priv->tx_free_mem += msdu_size; |
| 722 | priv->tx_desc_free++; |
| 723 | |
| 724 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) |
| 725 | priv->tx_buff_head = 0; |
| 726 | else |
| 727 | priv->tx_buff_head += msdu_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 728 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 730 | priv->tx_desc_head++ ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | else |
| 732 | priv->tx_desc_head = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 733 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | if (type == TX_PACKET_TYPE_DATA) { |
| 735 | if (status == TX_STATUS_SUCCESS) |
| 736 | priv->stats.tx_packets++; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 737 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | priv->stats.tx_errors++; |
| 739 | netif_wake_queue(priv->dev); |
| 740 | } |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) |
| 745 | { |
| 746 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; |
| 747 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 748 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | return 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 750 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | if (bottom_free >= len) |
| 752 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 753 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | if (priv->tx_free_mem - bottom_free >= len) { |
| 755 | priv->tx_buff_tail = 0; |
| 756 | return priv->host_info.tx_buff_pos; |
| 757 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 758 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | return 0; |
| 760 | } |
| 761 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 762 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
| 763 | u16 len, u16 buff, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | { |
| 765 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); |
| 766 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); |
| 767 | if (!priv->use_wpa) |
| 768 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); |
| 769 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); |
| 770 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); |
| 771 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); |
| 772 | if (priv->use_wpa) { |
| 773 | int cipher_type, cipher_length; |
| 774 | if (is_bcast) { |
| 775 | cipher_type = priv->group_cipher_suite; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 776 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
| 777 | cipher_type == CIPHER_SUITE_WEP_128) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | cipher_length = 8; |
| 779 | else if (cipher_type == CIPHER_SUITE_TKIP) |
| 780 | cipher_length = 12; |
| 781 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || |
| 782 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { |
| 783 | cipher_type = priv->pairwise_cipher_suite; |
| 784 | cipher_length = 8; |
| 785 | } else { |
| 786 | cipher_type = CIPHER_SUITE_NONE; |
| 787 | cipher_length = 0; |
| 788 | } |
| 789 | } else { |
| 790 | cipher_type = priv->pairwise_cipher_suite; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 791 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
| 792 | cipher_type == CIPHER_SUITE_WEP_128) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | cipher_length = 8; |
| 794 | else if (cipher_type == CIPHER_SUITE_TKIP) |
| 795 | cipher_length = 12; |
| 796 | else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 || |
| 797 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { |
| 798 | cipher_type = priv->group_cipher_suite; |
| 799 | cipher_length = 8; |
| 800 | } else { |
| 801 | cipher_type = CIPHER_SUITE_NONE; |
| 802 | cipher_length = 0; |
| 803 | } |
| 804 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 805 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | 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] | 807 | cipher_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
| 809 | cipher_length); |
| 810 | } |
| 811 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); |
| 812 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); |
| 813 | if (priv->tx_desc_previous != priv->tx_desc_tail) |
| 814 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); |
| 815 | priv->tx_desc_previous = priv->tx_desc_tail; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 816 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | priv->tx_desc_tail++; |
| 818 | else |
| 819 | priv->tx_desc_tail = 0; |
| 820 | priv->tx_desc_free--; |
| 821 | priv->tx_free_mem -= len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | } |
| 823 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 824 | static int start_tx(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | { |
| 826 | struct atmel_private *priv = netdev_priv(dev); |
James Ketrenos | 4ca5253 | 2005-09-21 12:23:46 -0500 | [diff] [blame] | 827 | struct ieee80211_hdr_4addr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | unsigned long flags; |
| 829 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; |
| 830 | u8 SNAP_RFC1024[6] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 831 | |
| 832 | if (priv->card && priv->present_callback && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | !(*priv->present_callback)(priv->card)) { |
| 834 | priv->stats.tx_errors++; |
| 835 | dev_kfree_skb(skb); |
| 836 | return 0; |
| 837 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 838 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | if (priv->station_state != STATION_STATE_READY) { |
| 840 | priv->stats.tx_errors++; |
| 841 | dev_kfree_skb(skb); |
| 842 | return 0; |
| 843 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 844 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | /* first ensure the timer func cannot run */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 846 | spin_lock_bh(&priv->timerlock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | /* then stop the hardware ISR */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 848 | spin_lock_irqsave(&priv->irqlock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | /* nb doing the above in the opposite order will deadlock */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 850 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | /* 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] | 852 | 12 first bytes (containing DA/SA) and put them in the appropriate |
| 853 | fields of the Wireless Header. Thus the packet length is then the |
| 854 | initial + 18 (+30-12) */ |
| 855 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | if (!(buff = find_tx_buff(priv, len + 18))) { |
| 857 | priv->stats.tx_dropped++; |
| 858 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 859 | spin_unlock_bh(&priv->timerlock); |
| 860 | netif_stop_queue(dev); |
| 861 | return 1; |
| 862 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 863 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 864 | frame_ctl = IEEE80211_FTYPE_DATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | header.duration_id = 0; |
| 866 | header.seq_ctl = 0; |
| 867 | if (priv->wep_is_on) |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 868 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | if (priv->operating_mode == IW_MODE_ADHOC) { |
| 870 | memcpy(&header.addr1, skb->data, 6); |
| 871 | memcpy(&header.addr2, dev->dev_addr, 6); |
| 872 | memcpy(&header.addr3, priv->BSSID, 6); |
| 873 | } else { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 874 | frame_ctl |= IEEE80211_FCTL_TODS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | memcpy(&header.addr1, priv->CurrentBSSID, 6); |
| 876 | memcpy(&header.addr2, dev->dev_addr, 6); |
| 877 | memcpy(&header.addr3, skb->data, 6); |
| 878 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 879 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | if (priv->use_wpa) |
| 881 | memcpy(&header.addr4, SNAP_RFC1024, 6); |
| 882 | |
| 883 | header.frame_ctl = cpu_to_le16(frame_ctl); |
| 884 | /* Copy the wireless header into the card */ |
| 885 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); |
| 886 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ |
| 887 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); |
| 888 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 889 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | /* low bit of first byte of destination tells us if broadcast */ |
| 891 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); |
| 892 | dev->trans_start = jiffies; |
| 893 | priv->stats.tx_bytes += len; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 894 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 896 | spin_unlock_bh(&priv->timerlock); |
| 897 | dev_kfree_skb(skb); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 898 | |
| 899 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | } |
| 901 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 902 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
James Ketrenos | 4ca5253 | 2005-09-21 12:23:46 -0500 | [diff] [blame] | 903 | struct ieee80211_hdr_4addr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | u8 *body, int body_len) |
| 905 | { |
| 906 | u16 buff; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 907 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
| 908 | |
| 909 | if (!(buff = find_tx_buff(priv, len))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | return; |
| 911 | |
| 912 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); |
| 913 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); |
| 914 | priv->tx_buff_tail += len; |
| 915 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); |
| 916 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 917 | |
| 918 | static void fast_rx_path(struct atmel_private *priv, |
| 919 | struct ieee80211_hdr_4addr *header, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 920 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
| 921 | { |
| 922 | /* fast path: unfragmented packet copy directly into skbuf */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 923 | u8 mac4[6]; |
| 924 | struct sk_buff *skb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 925 | unsigned char *skbp; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 926 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | /* get the final, mac 4 header field, this tells us encapsulation */ |
| 928 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); |
| 929 | msdu_size -= 6; |
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 | if (priv->do_rx_crc) { |
| 932 | crc = crc32_le(crc, mac4, 6); |
| 933 | msdu_size -= 4; |
| 934 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 935 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
| 937 | priv->stats.rx_dropped++; |
| 938 | return; |
| 939 | } |
| 940 | |
| 941 | skb_reserve(skb, 2); |
| 942 | skbp = skb_put(skb, msdu_size + 12); |
| 943 | 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] | 944 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | if (priv->do_rx_crc) { |
| 946 | u32 netcrc; |
| 947 | crc = crc32_le(crc, skbp + 12, msdu_size); |
| 948 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); |
| 949 | if ((crc ^ 0xffffffff) != netcrc) { |
| 950 | priv->stats.rx_crc_errors++; |
| 951 | dev_kfree_skb(skb); |
| 952 | return; |
| 953 | } |
| 954 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 955 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | memcpy(skbp, header->addr1, 6); /* destination address */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 957 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | memcpy(&skbp[6], header->addr3, 6); |
| 959 | else |
| 960 | memcpy(&skbp[6], header->addr2, 6); /* source address */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 961 | |
| 962 | priv->dev->last_rx = jiffies; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | skb->dev = priv->dev; |
| 964 | skb->protocol = eth_type_trans(skb, priv->dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 965 | skb->ip_summed = CHECKSUM_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | netif_rx(skb); |
| 967 | priv->stats.rx_bytes += 12 + msdu_size; |
| 968 | priv->stats.rx_packets++; |
| 969 | } |
| 970 | |
| 971 | /* 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] | 972 | It doesn't matter that this is slow: it is only used to proble the first few |
| 973 | packets. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
| 975 | { |
| 976 | int i = msdu_size - 4; |
| 977 | u32 netcrc, crc = 0xffffffff; |
| 978 | |
| 979 | if (msdu_size < 4) |
| 980 | return 0; |
| 981 | |
| 982 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 983 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | atmel_writeAR(priv->dev, packet_loc); |
| 985 | while (i--) { |
| 986 | u8 octet = atmel_read8(priv->dev, DR); |
| 987 | crc = crc32_le(crc, &octet, 1); |
| 988 | } |
| 989 | |
| 990 | return (crc ^ 0xffffffff) == netcrc; |
| 991 | } |
| 992 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 993 | static void frag_rx_path(struct atmel_private *priv, |
| 994 | struct ieee80211_hdr_4addr *header, |
| 995 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, |
| 996 | u8 frag_no, int more_frags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 998 | u8 mac4[6]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | u8 source[6]; |
| 1000 | struct sk_buff *skb; |
| 1001 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1002 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | memcpy(source, header->addr3, 6); |
| 1004 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1005 | memcpy(source, header->addr2, 6); |
| 1006 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | rx_packet_loc += 24; /* skip header */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | if (priv->do_rx_crc) |
| 1010 | msdu_size -= 4; |
| 1011 | |
| 1012 | if (frag_no == 0) { /* first fragment */ |
| 1013 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6); |
| 1014 | msdu_size -= 6; |
| 1015 | rx_packet_loc += 6; |
| 1016 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1017 | if (priv->do_rx_crc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | crc = crc32_le(crc, mac4, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1019 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | priv->frag_seq = seq_no; |
| 1021 | priv->frag_no = 1; |
| 1022 | priv->frag_len = msdu_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1023 | memcpy(priv->frag_source, source, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | memcpy(&priv->rx_buf[6], source, 6); |
| 1025 | memcpy(priv->rx_buf, header->addr1, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1026 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
| 1028 | |
| 1029 | if (priv->do_rx_crc) { |
| 1030 | u32 netcrc; |
| 1031 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); |
| 1032 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); |
| 1033 | if ((crc ^ 0xffffffff) != netcrc) { |
| 1034 | priv->stats.rx_crc_errors++; |
| 1035 | memset(priv->frag_source, 0xff, 6); |
| 1036 | } |
| 1037 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1038 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | } else if (priv->frag_no == frag_no && |
| 1040 | priv->frag_seq == seq_no && |
| 1041 | memcmp(priv->frag_source, source, 6) == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1042 | |
| 1043 | 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] | 1044 | rx_packet_loc, msdu_size); |
| 1045 | if (priv->do_rx_crc) { |
| 1046 | u32 netcrc; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1047 | crc = crc32_le(crc, |
| 1048 | &priv->rx_buf[12 + priv->frag_len], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | msdu_size); |
| 1050 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); |
| 1051 | if ((crc ^ 0xffffffff) != netcrc) { |
| 1052 | priv->stats.rx_crc_errors++; |
| 1053 | memset(priv->frag_source, 0xff, 6); |
| 1054 | more_frags = 1; /* don't send broken assembly */ |
| 1055 | } |
| 1056 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1057 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | priv->frag_len += msdu_size; |
| 1059 | priv->frag_no++; |
| 1060 | |
| 1061 | if (!more_frags) { /* last one */ |
| 1062 | memset(priv->frag_source, 0xff, 6); |
| 1063 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { |
| 1064 | priv->stats.rx_dropped++; |
| 1065 | } else { |
| 1066 | skb_reserve(skb, 2); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1067 | memcpy(skb_put(skb, priv->frag_len + 12), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | priv->rx_buf, |
| 1069 | priv->frag_len + 12); |
| 1070 | priv->dev->last_rx = jiffies; |
| 1071 | skb->dev = priv->dev; |
| 1072 | skb->protocol = eth_type_trans(skb, priv->dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1073 | skb->ip_summed = CHECKSUM_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | netif_rx(skb); |
| 1075 | priv->stats.rx_bytes += priv->frag_len + 12; |
| 1076 | priv->stats.rx_packets++; |
| 1077 | } |
| 1078 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | } else |
| 1080 | priv->wstats.discard.fragment++; |
| 1081 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1082 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | static void rx_done_irq(struct atmel_private *priv) |
| 1084 | { |
| 1085 | int i; |
James Ketrenos | 4ca5253 | 2005-09-21 12:23:46 -0500 | [diff] [blame] | 1086 | struct ieee80211_hdr_4addr header; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1087 | |
| 1088 | for (i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
| 1090 | i < priv->host_info.rx_desc_count; |
| 1091 | i++) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1092 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
| 1094 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); |
| 1095 | u32 crc = 0xffffffff; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1096 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | if (status != RX_STATUS_SUCCESS) { |
| 1098 | if (status == 0xc1) /* determined by experiment */ |
| 1099 | priv->wstats.discard.nwid++; |
| 1100 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1101 | priv->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | goto next; |
| 1103 | } |
| 1104 | |
| 1105 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); |
| 1106 | 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] | 1107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | if (msdu_size < 30) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1109 | priv->stats.rx_errors++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | goto next; |
| 1111 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | /* Get header as far as end of seq_ctl */ |
| 1114 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); |
| 1115 | frame_ctl = le16_to_cpu(header.frame_ctl); |
| 1116 | seq_control = le16_to_cpu(header.seq_ctl); |
| 1117 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1118 | /* probe for CRC use here if needed once five packets have |
| 1119 | arrived with the same crc status, we assume we know what's |
| 1120 | happening and stop probing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | if (priv->probe_crc) { |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 1122 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1123 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
| 1124 | } else { |
| 1125 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); |
| 1126 | } |
| 1127 | if (priv->do_rx_crc) { |
| 1128 | if (priv->crc_ok_cnt++ > 5) |
| 1129 | priv->probe_crc = 0; |
| 1130 | } else { |
| 1131 | if (priv->crc_ko_cnt++ > 5) |
| 1132 | priv->probe_crc = 0; |
| 1133 | } |
| 1134 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | /* don't CRC header when WEP in use */ |
Jiri Benc | f13baae | 2005-08-25 20:11:46 -0400 | [diff] [blame] | 1137 | 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] | 1138 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
| 1139 | } |
| 1140 | msdu_size -= 24; /* header */ |
| 1141 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1142 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 1143 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
| 1144 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; |
| 1145 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1146 | |
| 1147 | if (!more_fragments && packet_fragment_no == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
| 1149 | } else { |
| 1150 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, |
| 1151 | packet_sequence_no, packet_fragment_no, more_fragments); |
| 1152 | } |
| 1153 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1154 | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 1155 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | /* copy rest of packet into buffer */ |
| 1157 | 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] | 1158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | /* we use the same buffer for frag reassembly and control packets */ |
| 1160 | memset(priv->frag_source, 0xff, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1161 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | if (priv->do_rx_crc) { |
| 1163 | /* last 4 octets is crc */ |
| 1164 | msdu_size -= 4; |
| 1165 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); |
| 1166 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { |
| 1167 | priv->stats.rx_crc_errors++; |
| 1168 | goto next; |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | atmel_management_frame(priv, &header, msdu_size, |
| 1173 | 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] | 1174 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1176 | next: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | /* release descriptor */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1178 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
| 1179 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1181 | priv->rx_desc_head++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1182 | else |
| 1183 | priv->rx_desc_head = 0; |
| 1184 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1185 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | |
| 1187 | static irqreturn_t service_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 1188 | { |
| 1189 | struct net_device *dev = (struct net_device *) dev_id; |
| 1190 | struct atmel_private *priv = netdev_priv(dev); |
| 1191 | u8 isr; |
| 1192 | int i = -1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1193 | static u8 irq_order[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | ISR_OUT_OF_RANGE, |
| 1195 | ISR_RxCOMPLETE, |
| 1196 | ISR_TxCOMPLETE, |
| 1197 | ISR_RxFRAMELOST, |
| 1198 | ISR_FATAL_ERROR, |
| 1199 | ISR_COMMAND_COMPLETE, |
| 1200 | ISR_IBSS_MERGE, |
| 1201 | ISR_GENERIC_IRQ |
| 1202 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1204 | if (priv->card && priv->present_callback && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | !(*priv->present_callback)(priv->card)) |
| 1206 | return IRQ_HANDLED; |
| 1207 | |
| 1208 | /* In this state upper-level code assumes it can mess with |
| 1209 | the card unhampered by interrupts which may change register state. |
| 1210 | Note that even though the card shouldn't generate interrupts |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1211 | the inturrupt line may be shared. This allows card setup |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1212 | to go on without disabling interrupts for a long time. */ |
| 1213 | if (priv->station_state == STATION_STATE_DOWN) |
| 1214 | return IRQ_NONE; |
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 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
| 1217 | |
| 1218 | while (1) { |
| 1219 | if (!atmel_lock_mac(priv)) { |
| 1220 | /* failed to contact card */ |
| 1221 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); |
| 1222 | return IRQ_HANDLED; |
| 1223 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1224 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
| 1226 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1227 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | if (!isr) { |
| 1229 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ |
| 1230 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; |
| 1231 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1234 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | for (i = 0; i < sizeof(irq_order)/sizeof(u8); i++) |
| 1236 | if (isr & irq_order[i]) |
| 1237 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | if (!atmel_lock_mac(priv)) { |
| 1240 | /* failed to contact card */ |
| 1241 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); |
| 1242 | return IRQ_HANDLED; |
| 1243 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
| 1246 | isr ^= irq_order[i]; |
| 1247 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); |
| 1248 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1249 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | switch (irq_order[i]) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1251 | |
| 1252 | case ISR_OUT_OF_RANGE: |
| 1253 | if (priv->operating_mode == IW_MODE_INFRA && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | priv->station_state == STATION_STATE_READY) { |
| 1255 | priv->station_is_associated = 0; |
| 1256 | atmel_scan(priv, 1); |
| 1257 | } |
| 1258 | break; |
| 1259 | |
| 1260 | case ISR_RxFRAMELOST: |
| 1261 | priv->wstats.discard.misc++; |
| 1262 | /* fall through */ |
| 1263 | case ISR_RxCOMPLETE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1264 | rx_done_irq(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1266 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | case ISR_TxCOMPLETE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1268 | tx_done_irq(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | case ISR_FATAL_ERROR: |
| 1272 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); |
| 1273 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 1274 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1275 | |
| 1276 | case ISR_COMMAND_COMPLETE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1277 | atmel_command_irq(priv); |
| 1278 | break; |
| 1279 | |
| 1280 | case ISR_IBSS_MERGE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1281 | 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] | 1282 | priv->CurrentBSSID, 6); |
| 1283 | /* The WPA stuff cares about the current AP address */ |
| 1284 | if (priv->use_wpa) |
| 1285 | build_wpa_mib(priv); |
| 1286 | break; |
| 1287 | case ISR_GENERIC_IRQ: |
| 1288 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); |
| 1289 | break; |
| 1290 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1291 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | } |
| 1293 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1294 | static struct net_device_stats *atmel_get_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | { |
| 1296 | struct atmel_private *priv = netdev_priv(dev); |
| 1297 | return &priv->stats; |
| 1298 | } |
| 1299 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1300 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | { |
| 1302 | struct atmel_private *priv = netdev_priv(dev); |
| 1303 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1304 | /* update the link quality here in case we are seeing no beacons |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | at all to drive the process */ |
| 1306 | atmel_smooth_qual(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | priv->wstats.status = priv->station_state; |
| 1309 | |
| 1310 | if (priv->operating_mode == IW_MODE_INFRA) { |
| 1311 | if (priv->station_state != STATION_STATE_READY) { |
| 1312 | priv->wstats.qual.qual = 0; |
| 1313 | priv->wstats.qual.level = 0; |
| 1314 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID |
| 1315 | | IW_QUAL_LEVEL_INVALID); |
| 1316 | } |
| 1317 | priv->wstats.qual.noise = 0; |
| 1318 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; |
| 1319 | } else { |
| 1320 | /* Quality levels cannot be determined in ad-hoc mode, |
| 1321 | because we can 'hear' more that one remote station. */ |
| 1322 | priv->wstats.qual.qual = 0; |
| 1323 | priv->wstats.qual.level = 0; |
| 1324 | priv->wstats.qual.noise = 0; |
| 1325 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID |
| 1326 | | IW_QUAL_LEVEL_INVALID |
| 1327 | | IW_QUAL_NOISE_INVALID; |
| 1328 | priv->wstats.miss.beacon = 0; |
| 1329 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1330 | |
| 1331 | return &priv->wstats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | } |
| 1333 | |
| 1334 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) |
| 1335 | { |
| 1336 | if ((new_mtu < 68) || (new_mtu > 2312)) |
| 1337 | return -EINVAL; |
| 1338 | dev->mtu = new_mtu; |
| 1339 | return 0; |
| 1340 | } |
| 1341 | |
| 1342 | static int atmel_set_mac_address(struct net_device *dev, void *p) |
| 1343 | { |
| 1344 | struct sockaddr *addr = p; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1345 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
| 1347 | return atmel_open(dev); |
| 1348 | } |
| 1349 | |
| 1350 | EXPORT_SYMBOL(atmel_open); |
| 1351 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1352 | int atmel_open(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | { |
| 1354 | struct atmel_private *priv = netdev_priv(dev); |
| 1355 | int i, channel; |
| 1356 | |
| 1357 | /* any scheduled timer is no longer needed and might screw things up.. */ |
| 1358 | del_timer_sync(&priv->management_timer); |
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 | /* Interrupts will not touch the card once in this state... */ |
| 1361 | priv->station_state = STATION_STATE_DOWN; |
| 1362 | |
| 1363 | if (priv->new_SSID_size) { |
| 1364 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); |
| 1365 | priv->SSID_size = priv->new_SSID_size; |
| 1366 | priv->new_SSID_size = 0; |
| 1367 | } |
| 1368 | priv->BSS_list_entries = 0; |
| 1369 | |
| 1370 | priv->AuthenticationRequestRetryCnt = 0; |
| 1371 | priv->AssociationRequestRetryCnt = 0; |
| 1372 | priv->ReAssociationRequestRetryCnt = 0; |
| 1373 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
| 1374 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; |
| 1375 | |
| 1376 | priv->site_survey_state = SITE_SURVEY_IDLE; |
| 1377 | priv->station_is_associated = 0; |
| 1378 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1379 | if (!reset_atmel_card(dev)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | return -EAGAIN; |
| 1381 | |
| 1382 | if (priv->config_reg_domain) { |
| 1383 | priv->reg_domain = priv->config_reg_domain; |
| 1384 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); |
| 1385 | } else { |
| 1386 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); |
| 1387 | for (i = 0; i < sizeof(channel_table)/sizeof(channel_table[0]); i++) |
| 1388 | if (priv->reg_domain == channel_table[i].reg_domain) |
| 1389 | break; |
| 1390 | if (i == sizeof(channel_table)/sizeof(channel_table[0])) { |
| 1391 | priv->reg_domain = REG_DOMAIN_MKK1; |
| 1392 | 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] | 1393 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1394 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1395 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
| 1397 | priv->channel = channel; |
| 1398 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1399 | /* this moves station_state on.... */ |
| 1400 | atmel_scan(priv, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1401 | |
| 1402 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ |
| 1403 | return 0; |
| 1404 | } |
| 1405 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1406 | static int atmel_close(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | { |
| 1408 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1409 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1410 | /* Send event to userspace that we are disassociating */ |
| 1411 | if (priv->station_state == STATION_STATE_READY) { |
| 1412 | union iwreq_data wrqu; |
| 1413 | |
| 1414 | wrqu.data.length = 0; |
| 1415 | wrqu.data.flags = 0; |
| 1416 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 1417 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 1418 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 1419 | } |
| 1420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | atmel_enter_state(priv, STATION_STATE_DOWN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1422 | |
| 1423 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | atmel_write16(dev, GCR, 0x0060); |
| 1425 | atmel_write16(dev, GCR, 0x0040); |
| 1426 | return 0; |
| 1427 | } |
| 1428 | |
| 1429 | static int atmel_validate_channel(struct atmel_private *priv, int channel) |
| 1430 | { |
| 1431 | /* check that channel is OK, if so return zero, |
| 1432 | else return suitable default channel */ |
| 1433 | int i; |
| 1434 | |
| 1435 | for (i = 0; i < sizeof(channel_table)/sizeof(channel_table[0]); i++) |
| 1436 | if (priv->reg_domain == channel_table[i].reg_domain) { |
| 1437 | if (channel >= channel_table[i].min && |
| 1438 | channel <= channel_table[i].max) |
| 1439 | return 0; |
| 1440 | else |
| 1441 | return channel_table[i].min; |
| 1442 | } |
| 1443 | return 0; |
| 1444 | } |
| 1445 | |
| 1446 | static int atmel_proc_output (char *buf, struct atmel_private *priv) |
| 1447 | { |
| 1448 | int i; |
| 1449 | char *p = buf; |
| 1450 | char *s, *r, *c; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1451 | |
| 1452 | p += sprintf(p, "Driver version:\t\t%d.%d\n", |
| 1453 | DRIVER_MAJOR, DRIVER_MINOR); |
| 1454 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | if (priv->station_state != STATION_STATE_DOWN) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1456 | p += sprintf(p, "Firmware version:\t%d.%d build %d\n" |
| 1457 | "Firmware location:\t", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | priv->host_info.major_version, |
| 1459 | priv->host_info.minor_version, |
| 1460 | priv->host_info.build_version); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1461 | |
| 1462 | if (priv->card_type != CARD_TYPE_EEPROM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | p += sprintf(p, "on card\n"); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1464 | else if (priv->firmware) |
| 1465 | p += sprintf(p, "%s loaded by host\n", |
| 1466 | priv->firmware_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1468 | p += sprintf(p, "%s loaded by hotplug\n", |
| 1469 | priv->firmware_id); |
| 1470 | |
| 1471 | switch (priv->card_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break; |
| 1473 | case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break; |
| 1474 | case CARD_TYPE_EEPROM: c = "EEPROM"; break; |
| 1475 | default: c = "<unknown>"; |
| 1476 | } |
| 1477 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | r = "<unknown>"; |
| 1479 | for (i = 0; i < sizeof(channel_table)/sizeof(channel_table[0]); i++) |
| 1480 | if (priv->reg_domain == channel_table[i].reg_domain) |
| 1481 | r = channel_table[i].name; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1482 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | p += sprintf(p, "MAC memory type:\t%s\n", c); |
| 1484 | p += sprintf(p, "Regulatory domain:\t%s\n", r); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1485 | p += sprintf(p, "Host CRC checking:\t%s\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1486 | priv->do_rx_crc ? "On" : "Off"); |
| 1487 | p += sprintf(p, "WPA-capable firmware:\t%s\n", |
| 1488 | priv->use_wpa ? "Yes" : "No"); |
| 1489 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1490 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | switch(priv->station_state) { |
| 1492 | case STATION_STATE_SCANNING: s = "Scanning"; break; |
| 1493 | case STATION_STATE_JOINNING: s = "Joining"; break; |
| 1494 | case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break; |
| 1495 | case STATION_STATE_ASSOCIATING: s = "Associating"; break; |
| 1496 | case STATION_STATE_READY: s = "Ready"; break; |
| 1497 | case STATION_STATE_REASSOCIATING: s = "Reassociating"; break; |
| 1498 | case STATION_STATE_MGMT_ERROR: s = "Management error"; break; |
| 1499 | case STATION_STATE_DOWN: s = "Down"; break; |
| 1500 | default: s = "<unknown>"; |
| 1501 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | p += sprintf(p, "Current state:\t\t%s\n", s); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1504 | return p - buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | } |
| 1506 | |
| 1507 | static int atmel_read_proc(char *page, char **start, off_t off, |
| 1508 | int count, int *eof, void *data) |
| 1509 | { |
| 1510 | struct atmel_private *priv = data; |
| 1511 | int len = atmel_proc_output (page, priv); |
| 1512 | if (len <= off+count) *eof = 1; |
| 1513 | *start = page + off; |
| 1514 | len -= off; |
| 1515 | if (len>count) len = count; |
| 1516 | if (len<0) len = 0; |
| 1517 | return len; |
| 1518 | } |
| 1519 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1520 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
| 1521 | const AtmelFWType fw_type, |
| 1522 | struct device *sys_dev, |
| 1523 | int (*card_present)(void *), void *card) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1524 | { |
Christophe Lucas | 5bc4c36 | 2005-11-12 21:58:53 +0300 | [diff] [blame] | 1525 | struct proc_dir_entry *ent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | struct net_device *dev; |
| 1527 | struct atmel_private *priv; |
| 1528 | int rc; |
| 1529 | |
| 1530 | /* Create the network device object. */ |
| 1531 | dev = alloc_etherdev(sizeof(*priv)); |
| 1532 | if (!dev) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1533 | printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1534 | return NULL; |
| 1535 | } |
| 1536 | if (dev_alloc_name(dev, dev->name) < 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1537 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | goto err_out_free; |
| 1539 | } |
| 1540 | |
| 1541 | priv = netdev_priv(dev); |
| 1542 | priv->dev = dev; |
| 1543 | priv->sys_dev = sys_dev; |
| 1544 | priv->present_callback = card_present; |
| 1545 | priv->card = card; |
| 1546 | priv->firmware = NULL; |
| 1547 | priv->firmware_id[0] = '\0'; |
| 1548 | priv->firmware_type = fw_type; |
| 1549 | if (firmware) /* module parameter */ |
| 1550 | strcpy(priv->firmware_id, firmware); |
| 1551 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; |
| 1552 | priv->station_state = STATION_STATE_DOWN; |
| 1553 | priv->do_rx_crc = 0; |
| 1554 | /* For PCMCIA cards, some chips need CRC, some don't |
| 1555 | so we have to probe. */ |
| 1556 | if (priv->bus_type == BUS_TYPE_PCCARD) { |
| 1557 | priv->probe_crc = 1; |
| 1558 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; |
| 1559 | } else |
| 1560 | priv->probe_crc = 0; |
| 1561 | memset(&priv->stats, 0, sizeof(priv->stats)); |
| 1562 | memset(&priv->wstats, 0, sizeof(priv->wstats)); |
| 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | dev->open = atmel_open; |
| 1607 | dev->stop = atmel_close; |
| 1608 | dev->change_mtu = atmel_change_mtu; |
| 1609 | dev->set_mac_address = atmel_set_mac_address; |
| 1610 | dev->hard_start_xmit = start_tx; |
| 1611 | dev->get_stats = atmel_get_stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1612 | dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def; |
| 1613 | dev->do_ioctl = atmel_ioctl; |
| 1614 | dev->irq = irq; |
| 1615 | dev->base_addr = port; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1616 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | SET_NETDEV_DEV(dev, sys_dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1618 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | if ((rc = request_irq(dev->irq, service_interrupt, SA_SHIRQ, dev->name, dev))) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1620 | 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] | 1621 | goto err_out_free; |
| 1622 | } |
| 1623 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1624 | if (!request_region(dev->base_addr, 32, |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1625 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | goto err_out_irq; |
| 1627 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1628 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | if (register_netdev(dev)) |
| 1630 | goto err_out_res; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1631 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1632 | if (!probe_atmel_card(dev)){ |
| 1633 | unregister_netdev(dev); |
| 1634 | goto err_out_res; |
| 1635 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1637 | netif_carrier_off(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1638 | |
Christophe Lucas | 5bc4c36 | 2005-11-12 21:58:53 +0300 | [diff] [blame] | 1639 | ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); |
| 1640 | if (!ent) |
| 1641 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1642 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1643 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", |
| 1644 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, |
| 1645 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], |
| 1646 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5] ); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1647 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1648 | SET_MODULE_OWNER(dev); |
| 1649 | return dev; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1650 | |
| 1651 | err_out_res: |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1652 | release_region( dev->base_addr, 32); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1653 | err_out_irq: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | free_irq(dev->irq, dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1655 | err_out_free: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | free_netdev(dev); |
| 1657 | return NULL; |
| 1658 | } |
| 1659 | |
| 1660 | EXPORT_SYMBOL(init_atmel_card); |
| 1661 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1662 | void stop_atmel_card(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1663 | { |
| 1664 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1666 | /* put a brick on it... */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1667 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | atmel_write16(dev, GCR, 0x0060); |
| 1669 | atmel_write16(dev, GCR, 0x0040); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1670 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | del_timer_sync(&priv->management_timer); |
| 1672 | unregister_netdev(dev); |
| 1673 | remove_proc_entry("driver/atmel", NULL); |
| 1674 | free_irq(dev->irq, dev); |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 1675 | kfree(priv->firmware); |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1676 | release_region(dev->base_addr, 32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1677 | free_netdev(dev); |
| 1678 | } |
| 1679 | |
| 1680 | EXPORT_SYMBOL(stop_atmel_card); |
| 1681 | |
| 1682 | static int atmel_set_essid(struct net_device *dev, |
| 1683 | struct iw_request_info *info, |
| 1684 | struct iw_point *dwrq, |
| 1685 | char *extra) |
| 1686 | { |
| 1687 | struct atmel_private *priv = netdev_priv(dev); |
| 1688 | |
| 1689 | /* Check if we asked for `any' */ |
| 1690 | if(dwrq->flags == 0) { |
| 1691 | priv->connect_to_any_BSS = 1; |
| 1692 | } else { |
| 1693 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
| 1694 | |
| 1695 | priv->connect_to_any_BSS = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1696 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | /* Check the size of the string */ |
| 1698 | if (dwrq->length > MAX_SSID_LENGTH + 1) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1699 | return -E2BIG; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | if (index != 0) |
| 1701 | return -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1702 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | memcpy(priv->new_SSID, extra, dwrq->length - 1); |
| 1704 | priv->new_SSID_size = dwrq->length - 1; |
| 1705 | } |
| 1706 | |
| 1707 | return -EINPROGRESS; |
| 1708 | } |
| 1709 | |
| 1710 | static int atmel_get_essid(struct net_device *dev, |
| 1711 | struct iw_request_info *info, |
| 1712 | struct iw_point *dwrq, |
| 1713 | char *extra) |
| 1714 | { |
| 1715 | struct atmel_private *priv = netdev_priv(dev); |
| 1716 | |
| 1717 | /* Get the current SSID */ |
| 1718 | if (priv->new_SSID_size != 0) { |
| 1719 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); |
| 1720 | extra[priv->new_SSID_size] = '\0'; |
| 1721 | dwrq->length = priv->new_SSID_size + 1; |
| 1722 | } else { |
| 1723 | memcpy(extra, priv->SSID, priv->SSID_size); |
| 1724 | extra[priv->SSID_size] = '\0'; |
| 1725 | dwrq->length = priv->SSID_size + 1; |
| 1726 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1727 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1728 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
| 1729 | |
| 1730 | return 0; |
| 1731 | } |
| 1732 | |
| 1733 | static int atmel_get_wap(struct net_device *dev, |
| 1734 | struct iw_request_info *info, |
| 1735 | struct sockaddr *awrq, |
| 1736 | char *extra) |
| 1737 | { |
| 1738 | struct atmel_private *priv = netdev_priv(dev); |
| 1739 | memcpy(awrq->sa_data, priv->CurrentBSSID, 6); |
| 1740 | awrq->sa_family = ARPHRD_ETHER; |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | |
| 1745 | static int atmel_set_encode(struct net_device *dev, |
| 1746 | struct iw_request_info *info, |
| 1747 | struct iw_point *dwrq, |
| 1748 | char *extra) |
| 1749 | { |
| 1750 | struct atmel_private *priv = netdev_priv(dev); |
| 1751 | |
| 1752 | /* Basic checking: do we have a key to set ? |
| 1753 | * Note : with the new API, it's impossible to get a NULL pointer. |
| 1754 | * Therefore, we need to check a key size == 0 instead. |
| 1755 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag |
| 1756 | * when no key is present (only change flags), but older versions |
| 1757 | * don't do it. - Jean II */ |
| 1758 | if (dwrq->length > 0) { |
| 1759 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
| 1760 | int current_index = priv->default_key; |
| 1761 | /* Check the size of the key */ |
| 1762 | if (dwrq->length > 13) { |
| 1763 | return -EINVAL; |
| 1764 | } |
| 1765 | /* Check the index (none -> use current) */ |
| 1766 | if (index < 0 || index >= 4) |
| 1767 | index = current_index; |
| 1768 | else |
| 1769 | priv->default_key = index; |
| 1770 | /* Set the length */ |
| 1771 | if (dwrq->length > 5) |
| 1772 | priv->wep_key_len[index] = 13; |
| 1773 | else |
| 1774 | if (dwrq->length > 0) |
| 1775 | priv->wep_key_len[index] = 5; |
| 1776 | else |
| 1777 | /* Disable the key */ |
| 1778 | priv->wep_key_len[index] = 0; |
| 1779 | /* Check if the key is not marked as invalid */ |
| 1780 | if(!(dwrq->flags & IW_ENCODE_NOKEY)) { |
| 1781 | /* Cleanup */ |
| 1782 | memset(priv->wep_keys[index], 0, 13); |
| 1783 | /* Copy the key in the driver */ |
| 1784 | memcpy(priv->wep_keys[index], extra, dwrq->length); |
| 1785 | } |
| 1786 | /* WE specify that if a valid key is set, encryption |
| 1787 | * should be enabled (user may turn it off later) |
| 1788 | * This is also how "iwconfig ethX key on" works */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1789 | if (index == current_index && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1790 | priv->wep_key_len[index] > 0) { |
| 1791 | priv->wep_is_on = 1; |
| 1792 | priv->exclude_unencrypted = 1; |
| 1793 | if (priv->wep_key_len[index] > 5) { |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1794 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | priv->encryption_level = 2; |
| 1796 | } else { |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1797 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | priv->encryption_level = 1; |
| 1799 | } |
| 1800 | } |
| 1801 | } else { |
| 1802 | /* Do we want to just set the transmit key index ? */ |
| 1803 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1804 | if (index >= 0 && index < 4) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | priv->default_key = index; |
| 1806 | } else |
| 1807 | /* Don't complain if only change the mode */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1808 | if (!dwrq->flags & IW_ENCODE_MODE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1809 | return -EINVAL; |
| 1810 | } |
| 1811 | } |
| 1812 | /* Read the flags */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1813 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | priv->wep_is_on = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1815 | priv->encryption_level = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1816 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
| 1817 | } else { |
| 1818 | priv->wep_is_on = 1; |
| 1819 | if (priv->wep_key_len[priv->default_key] > 5) { |
| 1820 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
| 1821 | priv->encryption_level = 2; |
| 1822 | } else { |
| 1823 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
| 1824 | priv->encryption_level = 1; |
| 1825 | } |
| 1826 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1827 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1828 | priv->exclude_unencrypted = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1829 | if(dwrq->flags & IW_ENCODE_OPEN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1830 | priv->exclude_unencrypted = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1831 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1832 | return -EINPROGRESS; /* Call commit handler */ |
| 1833 | } |
| 1834 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | static int atmel_get_encode(struct net_device *dev, |
| 1836 | struct iw_request_info *info, |
| 1837 | struct iw_point *dwrq, |
| 1838 | char *extra) |
| 1839 | { |
| 1840 | struct atmel_private *priv = netdev_priv(dev); |
| 1841 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1842 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1843 | if (!priv->wep_is_on) |
| 1844 | dwrq->flags = IW_ENCODE_DISABLED; |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 1845 | else { |
| 1846 | if (priv->exclude_unencrypted) |
| 1847 | dwrq->flags = IW_ENCODE_RESTRICTED; |
| 1848 | else |
| 1849 | dwrq->flags = IW_ENCODE_OPEN; |
| 1850 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | /* Which key do we want ? -1 -> tx index */ |
| 1852 | if (index < 0 || index >= 4) |
| 1853 | index = priv->default_key; |
| 1854 | dwrq->flags |= index + 1; |
| 1855 | /* Copy the key to the user buffer */ |
| 1856 | dwrq->length = priv->wep_key_len[index]; |
| 1857 | if (dwrq->length > 16) { |
| 1858 | dwrq->length=0; |
| 1859 | } else { |
| 1860 | memset(extra, 0, 16); |
| 1861 | memcpy(extra, priv->wep_keys[index], dwrq->length); |
| 1862 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 1863 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1864 | return 0; |
| 1865 | } |
| 1866 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 1867 | static int atmel_set_encodeext(struct net_device *dev, |
| 1868 | struct iw_request_info *info, |
| 1869 | union iwreq_data *wrqu, |
| 1870 | char *extra) |
| 1871 | { |
| 1872 | struct atmel_private *priv = netdev_priv(dev); |
| 1873 | struct iw_point *encoding = &wrqu->encoding; |
| 1874 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
| 1875 | int idx, key_len; |
| 1876 | |
| 1877 | /* Determine and validate the key index */ |
| 1878 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 1879 | if (idx) { |
| 1880 | if (idx < 1 || idx > WEP_KEYS) |
| 1881 | return -EINVAL; |
| 1882 | idx--; |
| 1883 | } else |
| 1884 | idx = priv->default_key; |
| 1885 | |
| 1886 | if ((encoding->flags & IW_ENCODE_DISABLED) || |
| 1887 | ext->alg == IW_ENCODE_ALG_NONE) { |
| 1888 | priv->wep_is_on = 0; |
| 1889 | priv->encryption_level = 0; |
| 1890 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
| 1891 | } |
| 1892 | |
| 1893 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) |
| 1894 | priv->default_key = idx; |
| 1895 | |
| 1896 | /* Set the requested key */ |
| 1897 | switch (ext->alg) { |
| 1898 | case IW_ENCODE_ALG_NONE: |
| 1899 | break; |
| 1900 | case IW_ENCODE_ALG_WEP: |
| 1901 | if (ext->key_len > 5) { |
| 1902 | priv->wep_key_len[idx] = 13; |
| 1903 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
| 1904 | priv->encryption_level = 2; |
| 1905 | } else if (ext->key_len > 0) { |
| 1906 | priv->wep_key_len[idx] = 5; |
| 1907 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
| 1908 | priv->encryption_level = 1; |
| 1909 | } else { |
| 1910 | return -EINVAL; |
| 1911 | } |
| 1912 | priv->wep_is_on = 1; |
| 1913 | memset(priv->wep_keys[idx], 0, 13); |
| 1914 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); |
| 1915 | memcpy(priv->wep_keys[idx], ext->key, key_len); |
| 1916 | break; |
| 1917 | default: |
| 1918 | return -EINVAL; |
| 1919 | } |
| 1920 | |
| 1921 | return -EINPROGRESS; |
| 1922 | } |
| 1923 | |
| 1924 | static int atmel_get_encodeext(struct net_device *dev, |
| 1925 | struct iw_request_info *info, |
| 1926 | union iwreq_data *wrqu, |
| 1927 | char *extra) |
| 1928 | { |
| 1929 | struct atmel_private *priv = netdev_priv(dev); |
| 1930 | struct iw_point *encoding = &wrqu->encoding; |
| 1931 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; |
| 1932 | int idx, max_key_len; |
| 1933 | |
| 1934 | max_key_len = encoding->length - sizeof(*ext); |
| 1935 | if (max_key_len < 0) |
| 1936 | return -EINVAL; |
| 1937 | |
| 1938 | idx = encoding->flags & IW_ENCODE_INDEX; |
| 1939 | if (idx) { |
| 1940 | if (idx < 1 || idx > WEP_KEYS) |
| 1941 | return -EINVAL; |
| 1942 | idx--; |
| 1943 | } else |
| 1944 | idx = priv->default_key; |
| 1945 | |
| 1946 | encoding->flags = idx + 1; |
| 1947 | memset(ext, 0, sizeof(*ext)); |
| 1948 | |
| 1949 | if (!priv->wep_is_on) { |
| 1950 | ext->alg = IW_ENCODE_ALG_NONE; |
| 1951 | ext->key_len = 0; |
| 1952 | encoding->flags |= IW_ENCODE_DISABLED; |
| 1953 | } else { |
| 1954 | if (priv->encryption_level > 0) |
| 1955 | ext->alg = IW_ENCODE_ALG_WEP; |
| 1956 | else |
| 1957 | return -EINVAL; |
| 1958 | |
| 1959 | ext->key_len = priv->wep_key_len[idx]; |
| 1960 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); |
| 1961 | encoding->flags |= IW_ENCODE_ENABLED; |
| 1962 | } |
| 1963 | |
| 1964 | return 0; |
| 1965 | } |
| 1966 | |
| 1967 | static int atmel_set_auth(struct net_device *dev, |
| 1968 | struct iw_request_info *info, |
| 1969 | union iwreq_data *wrqu, char *extra) |
| 1970 | { |
| 1971 | struct atmel_private *priv = netdev_priv(dev); |
| 1972 | struct iw_param *param = &wrqu->param; |
| 1973 | |
| 1974 | switch (param->flags & IW_AUTH_INDEX) { |
| 1975 | case IW_AUTH_WPA_VERSION: |
| 1976 | case IW_AUTH_CIPHER_PAIRWISE: |
| 1977 | case IW_AUTH_CIPHER_GROUP: |
| 1978 | case IW_AUTH_KEY_MGMT: |
| 1979 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: |
| 1980 | case IW_AUTH_PRIVACY_INVOKED: |
| 1981 | /* |
| 1982 | * atmel does not use these parameters |
| 1983 | */ |
| 1984 | break; |
| 1985 | |
| 1986 | case IW_AUTH_DROP_UNENCRYPTED: |
| 1987 | priv->exclude_unencrypted = param->value ? 1 : 0; |
| 1988 | break; |
| 1989 | |
| 1990 | case IW_AUTH_80211_AUTH_ALG: { |
| 1991 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { |
| 1992 | priv->exclude_unencrypted = 1; |
| 1993 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { |
| 1994 | priv->exclude_unencrypted = 0; |
| 1995 | } else |
| 1996 | return -EINVAL; |
| 1997 | break; |
| 1998 | } |
| 1999 | |
| 2000 | case IW_AUTH_WPA_ENABLED: |
| 2001 | /* Silently accept disable of WPA */ |
| 2002 | if (param->value > 0) |
| 2003 | return -EOPNOTSUPP; |
| 2004 | break; |
| 2005 | |
| 2006 | default: |
| 2007 | return -EOPNOTSUPP; |
| 2008 | } |
| 2009 | return -EINPROGRESS; |
| 2010 | } |
| 2011 | |
| 2012 | static int atmel_get_auth(struct net_device *dev, |
| 2013 | struct iw_request_info *info, |
| 2014 | union iwreq_data *wrqu, char *extra) |
| 2015 | { |
| 2016 | struct atmel_private *priv = netdev_priv(dev); |
| 2017 | struct iw_param *param = &wrqu->param; |
| 2018 | |
| 2019 | switch (param->flags & IW_AUTH_INDEX) { |
| 2020 | case IW_AUTH_DROP_UNENCRYPTED: |
| 2021 | param->value = priv->exclude_unencrypted; |
| 2022 | break; |
| 2023 | |
| 2024 | case IW_AUTH_80211_AUTH_ALG: |
| 2025 | if (priv->exclude_unencrypted == 1) |
| 2026 | param->value = IW_AUTH_ALG_SHARED_KEY; |
| 2027 | else |
| 2028 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; |
| 2029 | break; |
| 2030 | |
| 2031 | case IW_AUTH_WPA_ENABLED: |
| 2032 | param->value = 0; |
| 2033 | break; |
| 2034 | |
| 2035 | default: |
| 2036 | return -EOPNOTSUPP; |
| 2037 | } |
| 2038 | return 0; |
| 2039 | } |
| 2040 | |
| 2041 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2042 | static int atmel_get_name(struct net_device *dev, |
| 2043 | struct iw_request_info *info, |
| 2044 | char *cwrq, |
| 2045 | char *extra) |
| 2046 | { |
| 2047 | strcpy(cwrq, "IEEE 802.11-DS"); |
| 2048 | return 0; |
| 2049 | } |
| 2050 | |
| 2051 | static int atmel_set_rate(struct net_device *dev, |
| 2052 | struct iw_request_info *info, |
| 2053 | struct iw_param *vwrq, |
| 2054 | char *extra) |
| 2055 | { |
| 2056 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2057 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2058 | if (vwrq->fixed == 0) { |
| 2059 | priv->tx_rate = 3; |
| 2060 | priv->auto_tx_rate = 1; |
| 2061 | } else { |
| 2062 | priv->auto_tx_rate = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2064 | /* Which type of value ? */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2065 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2066 | /* Setting by rate index */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2067 | priv->tx_rate = vwrq->value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | } else { |
| 2069 | /* Setting by frequency value */ |
| 2070 | switch (vwrq->value) { |
| 2071 | case 1000000: priv->tx_rate = 0; break; |
| 2072 | case 2000000: priv->tx_rate = 1; break; |
| 2073 | case 5500000: priv->tx_rate = 2; break; |
| 2074 | case 11000000: priv->tx_rate = 3; break; |
| 2075 | default: return -EINVAL; |
| 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; |
| 2120 | switch(priv->tx_rate) { |
| 2121 | case 0: vwrq->value = 1000000; break; |
| 2122 | case 1: vwrq->value = 2000000; break; |
| 2123 | case 2: vwrq->value = 5500000; break; |
| 2124 | case 3: vwrq->value = 11000000; break; |
| 2125 | } |
| 2126 | } |
| 2127 | return 0; |
| 2128 | } |
| 2129 | |
| 2130 | static int atmel_set_power(struct net_device *dev, |
| 2131 | struct iw_request_info *info, |
| 2132 | struct iw_param *vwrq, |
| 2133 | char *extra) |
| 2134 | { |
| 2135 | struct atmel_private *priv = netdev_priv(dev); |
| 2136 | priv->power_mode = vwrq->disabled ? 0 : 1; |
| 2137 | return -EINPROGRESS; |
| 2138 | } |
| 2139 | |
| 2140 | static int atmel_get_power(struct net_device *dev, |
| 2141 | struct iw_request_info *info, |
| 2142 | struct iw_param *vwrq, |
| 2143 | char *extra) |
| 2144 | { |
| 2145 | struct atmel_private *priv = netdev_priv(dev); |
| 2146 | vwrq->disabled = priv->power_mode ? 0 : 1; |
| 2147 | vwrq->flags = IW_POWER_ON; |
| 2148 | return 0; |
| 2149 | } |
| 2150 | |
| 2151 | static int atmel_set_retry(struct net_device *dev, |
| 2152 | struct iw_request_info *info, |
| 2153 | struct iw_param *vwrq, |
| 2154 | char *extra) |
| 2155 | { |
| 2156 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2157 | |
| 2158 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { |
| 2159 | if (vwrq->flags & IW_RETRY_MAX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2160 | priv->long_retry = vwrq->value; |
| 2161 | else if (vwrq->flags & IW_RETRY_MIN) |
| 2162 | priv->short_retry = vwrq->value; |
| 2163 | else { |
| 2164 | /* No modifier : set both */ |
| 2165 | priv->long_retry = vwrq->value; |
| 2166 | priv->short_retry = vwrq->value; |
| 2167 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2168 | return -EINPROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2169 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2171 | return -EINVAL; |
| 2172 | } |
| 2173 | |
| 2174 | static int atmel_get_retry(struct net_device *dev, |
| 2175 | struct iw_request_info *info, |
| 2176 | struct iw_param *vwrq, |
| 2177 | char *extra) |
| 2178 | { |
| 2179 | struct atmel_private *priv = netdev_priv(dev); |
| 2180 | |
| 2181 | vwrq->disabled = 0; /* Can't be disabled */ |
| 2182 | |
| 2183 | /* Note : by default, display the min retry number */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2184 | if (vwrq->flags & IW_RETRY_MAX) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2185 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; |
| 2186 | vwrq->value = priv->long_retry; |
| 2187 | } else { |
| 2188 | vwrq->flags = IW_RETRY_LIMIT; |
| 2189 | vwrq->value = priv->short_retry; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2190 | if (priv->long_retry != priv->short_retry) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | vwrq->flags |= IW_RETRY_MIN; |
| 2192 | } |
| 2193 | |
| 2194 | return 0; |
| 2195 | } |
| 2196 | |
| 2197 | static int atmel_set_rts(struct net_device *dev, |
| 2198 | struct iw_request_info *info, |
| 2199 | struct iw_param *vwrq, |
| 2200 | char *extra) |
| 2201 | { |
| 2202 | struct atmel_private *priv = netdev_priv(dev); |
| 2203 | int rthr = vwrq->value; |
| 2204 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2205 | if (vwrq->disabled) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2206 | rthr = 2347; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2207 | if ((rthr < 0) || (rthr > 2347)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2208 | return -EINVAL; |
| 2209 | } |
| 2210 | priv->rts_threshold = rthr; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2212 | return -EINPROGRESS; /* Call commit handler */ |
| 2213 | } |
| 2214 | |
| 2215 | static int atmel_get_rts(struct net_device *dev, |
| 2216 | struct iw_request_info *info, |
| 2217 | struct iw_param *vwrq, |
| 2218 | char *extra) |
| 2219 | { |
| 2220 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2221 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | vwrq->value = priv->rts_threshold; |
| 2223 | vwrq->disabled = (vwrq->value >= 2347); |
| 2224 | vwrq->fixed = 1; |
| 2225 | |
| 2226 | return 0; |
| 2227 | } |
| 2228 | |
| 2229 | static int atmel_set_frag(struct net_device *dev, |
| 2230 | struct iw_request_info *info, |
| 2231 | struct iw_param *vwrq, |
| 2232 | char *extra) |
| 2233 | { |
| 2234 | struct atmel_private *priv = netdev_priv(dev); |
| 2235 | int fthr = vwrq->value; |
| 2236 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2237 | if (vwrq->disabled) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2238 | fthr = 2346; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2239 | if ((fthr < 256) || (fthr > 2346)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2240 | return -EINVAL; |
| 2241 | } |
| 2242 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ |
| 2243 | priv->frag_threshold = fthr; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2244 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2245 | return -EINPROGRESS; /* Call commit handler */ |
| 2246 | } |
| 2247 | |
| 2248 | static int atmel_get_frag(struct net_device *dev, |
| 2249 | struct iw_request_info *info, |
| 2250 | struct iw_param *vwrq, |
| 2251 | char *extra) |
| 2252 | { |
| 2253 | struct atmel_private *priv = netdev_priv(dev); |
| 2254 | |
| 2255 | vwrq->value = priv->frag_threshold; |
| 2256 | vwrq->disabled = (vwrq->value >= 2346); |
| 2257 | vwrq->fixed = 1; |
| 2258 | |
| 2259 | return 0; |
| 2260 | } |
| 2261 | |
| 2262 | static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, |
| 2263 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; |
| 2264 | |
| 2265 | static int atmel_set_freq(struct net_device *dev, |
| 2266 | struct iw_request_info *info, |
| 2267 | struct iw_freq *fwrq, |
| 2268 | char *extra) |
| 2269 | { |
| 2270 | struct atmel_private *priv = netdev_priv(dev); |
| 2271 | int rc = -EINPROGRESS; /* Call commit handler */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2272 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2273 | /* If setting by frequency, convert to a channel */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2274 | if ((fwrq->e == 1) && |
| 2275 | (fwrq->m >= (int) 241200000) && |
| 2276 | (fwrq->m <= (int) 248700000)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2277 | int f = fwrq->m / 100000; |
| 2278 | int c = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2279 | while ((c < 14) && (f != frequency_list[c])) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2280 | c++; |
| 2281 | /* Hack to fall through... */ |
| 2282 | fwrq->e = 0; |
| 2283 | fwrq->m = c + 1; |
| 2284 | } |
| 2285 | /* Setting by channel number */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2286 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2287 | rc = -EOPNOTSUPP; |
| 2288 | else { |
| 2289 | int channel = fwrq->m; |
| 2290 | if (atmel_validate_channel(priv, channel) == 0) { |
| 2291 | priv->channel = channel; |
| 2292 | } else { |
| 2293 | rc = -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2294 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | } |
| 2296 | return rc; |
| 2297 | } |
| 2298 | |
| 2299 | static int atmel_get_freq(struct net_device *dev, |
| 2300 | struct iw_request_info *info, |
| 2301 | struct iw_freq *fwrq, |
| 2302 | char *extra) |
| 2303 | { |
| 2304 | struct atmel_private *priv = netdev_priv(dev); |
| 2305 | |
| 2306 | fwrq->m = priv->channel; |
| 2307 | fwrq->e = 0; |
| 2308 | return 0; |
| 2309 | } |
| 2310 | |
| 2311 | static int atmel_set_scan(struct net_device *dev, |
| 2312 | struct iw_request_info *info, |
| 2313 | struct iw_param *vwrq, |
| 2314 | char *extra) |
| 2315 | { |
| 2316 | struct atmel_private *priv = netdev_priv(dev); |
| 2317 | unsigned long flags; |
| 2318 | |
| 2319 | /* Note : you may have realised that, as this is a SET operation, |
| 2320 | * this is privileged and therefore a normal user can't |
| 2321 | * perform scanning. |
| 2322 | * This is not an error, while the device perform scanning, |
| 2323 | * traffic doesn't flow, so it's a perfect DoS... |
| 2324 | * Jean II */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2325 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2326 | if (priv->station_state == STATION_STATE_DOWN) |
| 2327 | return -EAGAIN; |
| 2328 | |
| 2329 | /* Timeout old surveys. */ |
| 2330 | if ((jiffies - priv->last_survey) > (20 * HZ)) |
| 2331 | priv->site_survey_state = SITE_SURVEY_IDLE; |
| 2332 | priv->last_survey = jiffies; |
| 2333 | |
| 2334 | /* Initiate a scan command */ |
| 2335 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) |
| 2336 | return -EBUSY; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2337 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | del_timer_sync(&priv->management_timer); |
| 2339 | spin_lock_irqsave(&priv->irqlock, flags); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2340 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
| 2342 | priv->fast_scan = 0; |
| 2343 | atmel_scan(priv, 0); |
| 2344 | spin_unlock_irqrestore(&priv->irqlock, flags); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2345 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2346 | return 0; |
| 2347 | } |
| 2348 | |
| 2349 | static int atmel_get_scan(struct net_device *dev, |
| 2350 | struct iw_request_info *info, |
| 2351 | struct iw_point *dwrq, |
| 2352 | char *extra) |
| 2353 | { |
| 2354 | struct atmel_private *priv = netdev_priv(dev); |
| 2355 | int i; |
| 2356 | char *current_ev = extra; |
| 2357 | struct iw_event iwe; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2358 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2359 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
| 2360 | return -EAGAIN; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2361 | |
| 2362 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | iwe.cmd = SIOCGIWAP; |
| 2364 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; |
| 2365 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6); |
| 2366 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_ADDR_LEN); |
| 2367 | |
| 2368 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; |
| 2369 | if (iwe.u.data.length > 32) |
| 2370 | iwe.u.data.length = 32; |
| 2371 | iwe.cmd = SIOCGIWESSID; |
| 2372 | iwe.u.data.flags = 1; |
| 2373 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, priv->BSSinfo[i].SSID); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2374 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2375 | iwe.cmd = SIOCGIWMODE; |
| 2376 | iwe.u.mode = priv->BSSinfo[i].BSStype; |
| 2377 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_UINT_LEN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2378 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2379 | iwe.cmd = SIOCGIWFREQ; |
| 2380 | iwe.u.freq.m = priv->BSSinfo[i].channel; |
| 2381 | iwe.u.freq.e = 0; |
| 2382 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_FREQ_LEN); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2383 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | iwe.cmd = SIOCGIWENCODE; |
| 2385 | if (priv->BSSinfo[i].UsingWEP) |
| 2386 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 2387 | else |
| 2388 | iwe.u.data.flags = IW_ENCODE_DISABLED; |
| 2389 | iwe.u.data.length = 0; |
| 2390 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2391 | } |
| 2392 | |
| 2393 | /* Length of data */ |
| 2394 | dwrq->length = (current_ev - extra); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2395 | dwrq->flags = 0; |
| 2396 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2397 | return 0; |
| 2398 | } |
| 2399 | |
| 2400 | static int atmel_get_range(struct net_device *dev, |
| 2401 | struct iw_request_info *info, |
| 2402 | struct iw_point *dwrq, |
| 2403 | char *extra) |
| 2404 | { |
| 2405 | struct atmel_private *priv = netdev_priv(dev); |
| 2406 | struct iw_range *range = (struct iw_range *) extra; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2407 | int k, i, j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2408 | |
| 2409 | dwrq->length = sizeof(struct iw_range); |
Alexey Dobriyan | f36be62 | 2005-11-08 00:41:48 +0300 | [diff] [blame] | 2410 | memset(range, 0, sizeof(struct iw_range)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2411 | range->min_nwid = 0x0000; |
| 2412 | range->max_nwid = 0x0000; |
| 2413 | range->num_channels = 0; |
| 2414 | for (j = 0; j < sizeof(channel_table)/sizeof(channel_table[0]); j++) |
| 2415 | if (priv->reg_domain == channel_table[j].reg_domain) { |
| 2416 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; |
| 2417 | break; |
| 2418 | } |
| 2419 | if (range->num_channels != 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2420 | 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] | 2421 | range->freq[k].i = i; /* List index */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2422 | range->freq[k].m = frequency_list[i - 1] * 100000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | range->freq[k++].e = 1; /* Values in table in MHz -> * 10^5 * 10 */ |
| 2424 | } |
| 2425 | range->num_frequency = k; |
| 2426 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2427 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2428 | range->max_qual.qual = 100; |
| 2429 | range->max_qual.level = 100; |
| 2430 | range->max_qual.noise = 0; |
| 2431 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2432 | |
| 2433 | range->avg_qual.qual = 50; |
| 2434 | range->avg_qual.level = 50; |
| 2435 | range->avg_qual.noise = 0; |
| 2436 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; |
| 2437 | |
| 2438 | range->sensitivity = 0; |
| 2439 | |
| 2440 | range->bitrate[0] = 1000000; |
| 2441 | range->bitrate[1] = 2000000; |
| 2442 | range->bitrate[2] = 5500000; |
| 2443 | range->bitrate[3] = 11000000; |
| 2444 | range->num_bitrates = 4; |
| 2445 | |
| 2446 | range->min_rts = 0; |
| 2447 | range->max_rts = 2347; |
| 2448 | range->min_frag = 256; |
| 2449 | range->max_frag = 2346; |
| 2450 | |
| 2451 | range->encoding_size[0] = 5; |
| 2452 | range->encoding_size[1] = 13; |
| 2453 | range->num_encoding_sizes = 2; |
| 2454 | range->max_encoding_tokens = 4; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2455 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2456 | range->pmp_flags = IW_POWER_ON; |
| 2457 | range->pmt_flags = IW_POWER_ON; |
| 2458 | range->pm_capa = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2459 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | range->we_version_source = WIRELESS_EXT; |
| 2461 | range->we_version_compiled = WIRELESS_EXT; |
| 2462 | range->retry_capa = IW_RETRY_LIMIT ; |
| 2463 | range->retry_flags = IW_RETRY_LIMIT; |
| 2464 | range->r_time_flags = 0; |
| 2465 | range->min_retry = 1; |
| 2466 | range->max_retry = 65535; |
| 2467 | |
| 2468 | return 0; |
| 2469 | } |
| 2470 | |
| 2471 | static int atmel_set_wap(struct net_device *dev, |
| 2472 | struct iw_request_info *info, |
| 2473 | struct sockaddr *awrq, |
| 2474 | char *extra) |
| 2475 | { |
| 2476 | struct atmel_private *priv = netdev_priv(dev); |
| 2477 | int i; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2478 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| 2479 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2480 | unsigned long flags; |
| 2481 | |
| 2482 | if (awrq->sa_family != ARPHRD_ETHER) |
| 2483 | return -EINVAL; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2484 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2485 | if (!memcmp(any, awrq->sa_data, 6) || |
| 2486 | !memcmp(off, awrq->sa_data, 6)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2487 | del_timer_sync(&priv->management_timer); |
| 2488 | spin_lock_irqsave(&priv->irqlock, flags); |
| 2489 | atmel_scan(priv, 1); |
| 2490 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 2491 | return 0; |
| 2492 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2493 | |
| 2494 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2495 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
| 2496 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { |
| 2497 | return -EINVAL; |
| 2498 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { |
| 2499 | return -EINVAL; |
| 2500 | } else { |
| 2501 | del_timer_sync(&priv->management_timer); |
| 2502 | spin_lock_irqsave(&priv->irqlock, flags); |
| 2503 | atmel_join_bss(priv, i); |
| 2504 | spin_unlock_irqrestore(&priv->irqlock, flags); |
| 2505 | return 0; |
| 2506 | } |
| 2507 | } |
| 2508 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2509 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2510 | return -EINVAL; |
| 2511 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2512 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2513 | static int atmel_config_commit(struct net_device *dev, |
| 2514 | struct iw_request_info *info, /* NULL */ |
| 2515 | void *zwrq, /* NULL */ |
| 2516 | char *extra) /* NULL */ |
| 2517 | { |
| 2518 | return atmel_open(dev); |
| 2519 | } |
| 2520 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2521 | static const iw_handler atmel_handler[] = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2522 | { |
| 2523 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2524 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2525 | (iw_handler) NULL, /* SIOCSIWNWID */ |
| 2526 | (iw_handler) NULL, /* SIOCGIWNWID */ |
| 2527 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ |
| 2528 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ |
| 2529 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ |
| 2530 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2531 | (iw_handler) NULL, /* SIOCSIWSENS */ |
| 2532 | (iw_handler) NULL, /* SIOCGIWSENS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2533 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
| 2534 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ |
| 2535 | (iw_handler) NULL, /* SIOCSIWPRIV */ |
| 2536 | (iw_handler) NULL, /* SIOCGIWPRIV */ |
| 2537 | (iw_handler) NULL, /* SIOCSIWSTATS */ |
| 2538 | (iw_handler) NULL, /* SIOCGIWSTATS */ |
| 2539 | (iw_handler) NULL, /* SIOCSIWSPY */ |
| 2540 | (iw_handler) NULL, /* SIOCGIWSPY */ |
| 2541 | (iw_handler) NULL, /* -- hole -- */ |
| 2542 | (iw_handler) NULL, /* -- hole -- */ |
| 2543 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ |
| 2544 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ |
| 2545 | (iw_handler) NULL, /* -- hole -- */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2546 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2547 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
| 2548 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ |
| 2549 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ |
| 2550 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2551 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
| 2552 | (iw_handler) NULL, /* SIOCGIWNICKN */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2553 | (iw_handler) NULL, /* -- hole -- */ |
| 2554 | (iw_handler) NULL, /* -- hole -- */ |
| 2555 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ |
| 2556 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ |
| 2557 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ |
| 2558 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ |
| 2559 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ |
| 2560 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2561 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
| 2562 | (iw_handler) NULL, /* SIOCGIWTXPOW */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2563 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
| 2564 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ |
| 2565 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ |
| 2566 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ |
| 2567 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ |
| 2568 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 2569 | (iw_handler) NULL, /* -- hole -- */ |
| 2570 | (iw_handler) NULL, /* -- hole -- */ |
| 2571 | (iw_handler) NULL, /* SIOCSIWGENIE */ |
| 2572 | (iw_handler) NULL, /* SIOCGIWGENIE */ |
| 2573 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ |
| 2574 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ |
| 2575 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ |
| 2576 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ |
| 2577 | (iw_handler) NULL, /* SIOCSIWPMKSA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2578 | }; |
| 2579 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2580 | static const iw_handler atmel_private_handler[] = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2581 | { |
| 2582 | NULL, /* SIOCIWFIRSTPRIV */ |
| 2583 | }; |
| 2584 | |
| 2585 | typedef struct atmel_priv_ioctl { |
| 2586 | char id[32]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2587 | unsigned char __user *data; |
| 2588 | unsigned short len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2589 | } atmel_priv_ioctl; |
| 2590 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2591 | #define ATMELFWL SIOCIWFIRSTPRIV |
| 2592 | #define ATMELIDIFC ATMELFWL + 1 |
| 2593 | #define ATMELRD ATMELFWL + 2 |
| 2594 | #define ATMELMAGIC 0x51807 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2595 | #define REGDOMAINSZ 20 |
| 2596 | |
| 2597 | static const struct iw_priv_args atmel_private_args[] = { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2598 | { |
| 2599 | .cmd = ATMELFWL, |
| 2600 | .set_args = IW_PRIV_TYPE_BYTE |
| 2601 | | IW_PRIV_SIZE_FIXED |
| 2602 | | sizeof (atmel_priv_ioctl), |
| 2603 | .get_args = IW_PRIV_TYPE_NONE, |
| 2604 | .name = "atmelfwl" |
| 2605 | }, { |
| 2606 | .cmd = ATMELIDIFC, |
| 2607 | .set_args = IW_PRIV_TYPE_NONE, |
| 2608 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, |
| 2609 | .name = "atmelidifc" |
| 2610 | }, { |
| 2611 | .cmd = ATMELRD, |
| 2612 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, |
| 2613 | .get_args = IW_PRIV_TYPE_NONE, |
| 2614 | .name = "regdomain" |
| 2615 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2616 | }; |
| 2617 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2618 | static const struct iw_handler_def atmel_handler_def = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2619 | { |
| 2620 | .num_standard = sizeof(atmel_handler)/sizeof(iw_handler), |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2621 | .num_private = sizeof(atmel_private_handler)/sizeof(iw_handler), |
| 2622 | .num_private_args = sizeof(atmel_private_args)/sizeof(struct iw_priv_args), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2623 | .standard = (iw_handler *) atmel_handler, |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2624 | .private = (iw_handler *) atmel_private_handler, |
Jean Tourrilhes | 72f98d3 | 2005-09-02 11:36:00 -0700 | [diff] [blame] | 2625 | .private_args = (struct iw_priv_args *) atmel_private_args, |
| 2626 | .get_wireless_stats = atmel_get_wireless_stats |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2627 | }; |
| 2628 | |
| 2629 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| 2630 | { |
| 2631 | int i, rc = 0; |
| 2632 | struct atmel_private *priv = netdev_priv(dev); |
| 2633 | atmel_priv_ioctl com; |
| 2634 | struct iwreq *wrq = (struct iwreq *) rq; |
| 2635 | unsigned char *new_firmware; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2636 | char domain[REGDOMAINSZ + 1]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2637 | |
| 2638 | switch (cmd) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2639 | case ATMELIDIFC: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2640 | wrq->u.param.value = ATMELMAGIC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2641 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2642 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2643 | case ATMELFWL: |
| 2644 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { |
| 2645 | rc = -EFAULT; |
| 2646 | break; |
| 2647 | } |
| 2648 | |
| 2649 | if (!capable(CAP_NET_ADMIN)) { |
| 2650 | rc = -EPERM; |
| 2651 | break; |
| 2652 | } |
| 2653 | |
| 2654 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { |
| 2655 | rc = -ENOMEM; |
| 2656 | break; |
| 2657 | } |
| 2658 | |
| 2659 | if (copy_from_user(new_firmware, com.data, com.len)) { |
| 2660 | kfree(new_firmware); |
| 2661 | rc = -EFAULT; |
| 2662 | break; |
| 2663 | } |
| 2664 | |
Jesper Juhl | b4558ea | 2005-10-28 16:53:13 -0400 | [diff] [blame] | 2665 | kfree(priv->firmware); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2666 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2667 | priv->firmware = new_firmware; |
| 2668 | priv->firmware_length = com.len; |
| 2669 | strncpy(priv->firmware_id, com.id, 31); |
| 2670 | priv->firmware_id[31] = '\0'; |
| 2671 | break; |
| 2672 | |
| 2673 | case ATMELRD: |
| 2674 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { |
| 2675 | rc = -EFAULT; |
| 2676 | break; |
| 2677 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2678 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2679 | if (!capable(CAP_NET_ADMIN)) { |
| 2680 | rc = -EPERM; |
| 2681 | break; |
| 2682 | } |
| 2683 | |
| 2684 | domain[REGDOMAINSZ] = 0; |
| 2685 | rc = -EINVAL; |
| 2686 | for (i = 0; i < sizeof(channel_table)/sizeof(channel_table[0]); i++) { |
| 2687 | /* strcasecmp doesn't exist in the library */ |
| 2688 | char *a = channel_table[i].name; |
| 2689 | char *b = domain; |
| 2690 | while (*a) { |
| 2691 | char c1 = *a++; |
| 2692 | char c2 = *b++; |
| 2693 | if (tolower(c1) != tolower(c2)) |
| 2694 | break; |
| 2695 | } |
| 2696 | if (!*a && !*b) { |
| 2697 | priv->config_reg_domain = channel_table[i].reg_domain; |
| 2698 | rc = 0; |
| 2699 | } |
| 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 (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
| 2703 | rc = atmel_open(dev); |
| 2704 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2705 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2706 | default: |
| 2707 | rc = -EOPNOTSUPP; |
| 2708 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2710 | return rc; |
| 2711 | } |
| 2712 | |
| 2713 | struct auth_body { |
| 2714 | u16 alg; |
| 2715 | u16 trans_seq; |
| 2716 | u16 status; |
| 2717 | u8 el_id; |
| 2718 | u8 chall_text_len; |
| 2719 | u8 chall_text[253]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2720 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2721 | |
| 2722 | static void atmel_enter_state(struct atmel_private *priv, int new_state) |
| 2723 | { |
| 2724 | int old_state = priv->station_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2725 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2726 | if (new_state == old_state) |
| 2727 | return; |
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 | priv->station_state = new_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2730 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2731 | if (new_state == STATION_STATE_READY) { |
| 2732 | netif_start_queue(priv->dev); |
| 2733 | netif_carrier_on(priv->dev); |
| 2734 | } |
| 2735 | |
| 2736 | if (old_state == STATION_STATE_READY) { |
| 2737 | netif_carrier_off(priv->dev); |
| 2738 | if (netif_running(priv->dev)) |
| 2739 | netif_stop_queue(priv->dev); |
| 2740 | priv->last_beacon_timestamp = 0; |
| 2741 | } |
| 2742 | } |
| 2743 | |
| 2744 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) |
| 2745 | { |
| 2746 | struct { |
| 2747 | u8 BSSID[6]; |
| 2748 | u8 SSID[MAX_SSID_LENGTH]; |
| 2749 | u8 scan_type; |
| 2750 | u8 channel; |
| 2751 | u16 BSS_type; |
| 2752 | u16 min_channel_time; |
| 2753 | u16 max_channel_time; |
| 2754 | u8 options; |
| 2755 | u8 SSID_size; |
| 2756 | } cmd; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2757 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2758 | memset(cmd.BSSID, 0xff, 6); |
| 2759 | |
| 2760 | if (priv->fast_scan) { |
| 2761 | cmd.SSID_size = priv->SSID_size; |
| 2762 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2763 | cmd.min_channel_time = cpu_to_le16(10); |
| 2764 | cmd.max_channel_time = cpu_to_le16(50); |
| 2765 | } else { |
| 2766 | priv->BSS_list_entries = 0; |
| 2767 | cmd.SSID_size = 0; |
| 2768 | cmd.min_channel_time = cpu_to_le16(10); |
| 2769 | cmd.max_channel_time = cpu_to_le16(120); |
| 2770 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2771 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | cmd.options = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2774 | if (!specific_ssid) |
| 2775 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2776 | |
| 2777 | cmd.channel = (priv->channel & 0x7f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2778 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2779 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2780 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2781 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2782 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
| 2783 | |
| 2784 | /* This must come after all hardware access to avoid being messed up |
| 2785 | by stuff happening in interrupt context after we leave STATE_DOWN */ |
| 2786 | atmel_enter_state(priv, STATION_STATE_SCANNING); |
| 2787 | } |
| 2788 | |
| 2789 | static void join(struct atmel_private *priv, int type) |
| 2790 | { |
| 2791 | struct { |
| 2792 | u8 BSSID[6]; |
| 2793 | u8 SSID[MAX_SSID_LENGTH]; |
| 2794 | u8 BSS_type; /* this is a short in a scan command - weird */ |
| 2795 | u8 channel; |
| 2796 | u16 timeout; |
| 2797 | u8 SSID_size; |
| 2798 | u8 reserved; |
| 2799 | } cmd; |
| 2800 | |
| 2801 | cmd.SSID_size = priv->SSID_size; |
| 2802 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2803 | memcpy(cmd.BSSID, priv->CurrentBSSID, 6); |
| 2804 | cmd.channel = (priv->channel & 0x7f); |
| 2805 | cmd.BSS_type = type; |
| 2806 | cmd.timeout = cpu_to_le16(2000); |
| 2807 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2808 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2809 | } |
| 2810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2811 | static void start(struct atmel_private *priv, int type) |
| 2812 | { |
| 2813 | struct { |
| 2814 | u8 BSSID[6]; |
| 2815 | u8 SSID[MAX_SSID_LENGTH]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2816 | u8 BSS_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2817 | u8 channel; |
| 2818 | u8 SSID_size; |
| 2819 | u8 reserved[3]; |
| 2820 | } cmd; |
| 2821 | |
| 2822 | cmd.SSID_size = priv->SSID_size; |
| 2823 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); |
| 2824 | memcpy(cmd.BSSID, priv->BSSID, 6); |
| 2825 | cmd.BSS_type = type; |
| 2826 | cmd.channel = (priv->channel & 0x7f); |
| 2827 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2828 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | } |
| 2830 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2831 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
| 2832 | u8 channel) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2833 | { |
| 2834 | int rejoin = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2835 | int new = capability & C80211_MGMT_CAPABILITY_ShortPreamble ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2836 | SHORT_PREAMBLE : LONG_PREAMBLE; |
| 2837 | |
| 2838 | if (priv->preamble != new) { |
| 2839 | priv->preamble = new; |
| 2840 | rejoin = 1; |
| 2841 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); |
| 2842 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2843 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2844 | if (priv->channel != channel) { |
| 2845 | priv->channel = channel; |
| 2846 | rejoin = 1; |
| 2847 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); |
| 2848 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2849 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2850 | if (rejoin) { |
| 2851 | priv->station_is_associated = 0; |
| 2852 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2853 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | if (priv->operating_mode == IW_MODE_INFRA) |
| 2855 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2856 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2857 | join(priv, BSS_TYPE_AD_HOC); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2858 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2859 | } |
| 2860 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2861 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
| 2862 | u8 *challenge, int challenge_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2863 | { |
James Ketrenos | 4ca5253 | 2005-09-21 12:23:46 -0500 | [diff] [blame] | 2864 | struct ieee80211_hdr_4addr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2865 | struct auth_body auth; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2866 | |
| 2867 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); |
| 2868 | header.duration_id = cpu_to_le16(0x8000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2869 | header.seq_ctl = 0; |
| 2870 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
| 2871 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
| 2872 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2873 | |
| 2874 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2875 | /* no WEP for authentication frames with TrSeqNo 1 */ |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 2876 | header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2877 | |
| 2878 | auth.alg = cpu_to_le16(system); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2879 | |
| 2880 | auth.status = 0; |
| 2881 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2882 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | priv->CurrentAuthentTransactionSeqNum += 2; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2884 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2885 | if (challenge_len != 0) { |
| 2886 | auth.el_id = 16; /* challenge_text */ |
| 2887 | auth.chall_text_len = challenge_len; |
| 2888 | memcpy(auth.chall_text, challenge, challenge_len); |
| 2889 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); |
| 2890 | } else { |
| 2891 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); |
| 2892 | } |
| 2893 | } |
| 2894 | |
| 2895 | static void send_association_request(struct atmel_private *priv, int is_reassoc) |
| 2896 | { |
| 2897 | u8 *ssid_el_p; |
| 2898 | int bodysize; |
James Ketrenos | 4ca5253 | 2005-09-21 12:23:46 -0500 | [diff] [blame] | 2899 | struct ieee80211_hdr_4addr header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2900 | struct ass_req_format { |
| 2901 | u16 capability; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2902 | u16 listen_interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2903 | u8 ap[6]; /* nothing after here directly accessible */ |
| 2904 | u8 ssid_el_id; |
| 2905 | u8 ssid_len; |
| 2906 | u8 ssid[MAX_SSID_LENGTH]; |
| 2907 | u8 sup_rates_el_id; |
| 2908 | u8 sup_rates_len; |
| 2909 | u8 rates[4]; |
| 2910 | } body; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2911 | |
| 2912 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 2913 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2914 | header.duration_id = cpu_to_le16(0x8000); |
| 2915 | header.seq_ctl = 0; |
| 2916 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2917 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2918 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2919 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2920 | |
| 2921 | body.capability = cpu_to_le16(C80211_MGMT_CAPABILITY_ESS); |
| 2922 | if (priv->wep_is_on) |
| 2923 | body.capability |= cpu_to_le16(C80211_MGMT_CAPABILITY_Privacy); |
| 2924 | if (priv->preamble == SHORT_PREAMBLE) |
| 2925 | body.capability |= cpu_to_le16(C80211_MGMT_CAPABILITY_ShortPreamble); |
| 2926 | |
| 2927 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2928 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2929 | /* current AP address - only in reassoc frame */ |
| 2930 | if (is_reassoc) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2931 | memcpy(body.ap, priv->CurrentBSSID, 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2932 | ssid_el_p = (u8 *)&body.ssid_el_id; |
| 2933 | bodysize = 18 + priv->SSID_size; |
| 2934 | } else { |
| 2935 | ssid_el_p = (u8 *)&body.ap[0]; |
| 2936 | bodysize = 12 + priv->SSID_size; |
| 2937 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2938 | |
| 2939 | ssid_el_p[0] = C80211_MGMT_ElementID_SSID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2940 | ssid_el_p[1] = priv->SSID_size; |
| 2941 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); |
| 2942 | ssid_el_p[2 + priv->SSID_size] = C80211_MGMT_ElementID_SupportedRates; |
| 2943 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */ |
| 2944 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); |
| 2945 | |
| 2946 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); |
| 2947 | } |
| 2948 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2949 | static int is_frame_from_current_bss(struct atmel_private *priv, |
| 2950 | struct ieee80211_hdr_4addr *header) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2951 | { |
Jeff Garzik | b453872 | 2005-05-12 22:48:20 -0400 | [diff] [blame] | 2952 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2953 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
| 2954 | else |
| 2955 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; |
| 2956 | } |
| 2957 | |
| 2958 | static int retrieve_bss(struct atmel_private *priv) |
| 2959 | { |
| 2960 | int i; |
| 2961 | int max_rssi = -128; |
| 2962 | int max_index = -1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2963 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2964 | if (priv->BSS_list_entries == 0) |
| 2965 | return -1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2966 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2967 | if (priv->connect_to_any_BSS) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2968 | /* Select a BSS with the max-RSSI but of the same type and of |
| 2969 | the same WEP mode and that it is not marked as 'bad' (i.e. |
| 2970 | we had previously failed to connect to this BSS with the |
| 2971 | settings that we currently use) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2972 | priv->current_BSS = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2973 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2974 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2975 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2976 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
| 2977 | !(priv->BSSinfo[i].channel & 0x80)) { |
| 2978 | max_rssi = priv->BSSinfo[i].RSSI; |
| 2979 | priv->current_BSS = max_index = i; |
| 2980 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2981 | } |
| 2982 | return max_index; |
| 2983 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2984 | |
| 2985 | for (i = 0; i < priv->BSS_list_entries; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2986 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
| 2987 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && |
| 2988 | priv->operating_mode == priv->BSSinfo[i].BSStype && |
| 2989 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { |
| 2990 | if (priv->BSSinfo[i].RSSI >= max_rssi) { |
| 2991 | max_rssi = priv->BSSinfo[i].RSSI; |
| 2992 | max_index = i; |
| 2993 | } |
| 2994 | } |
| 2995 | } |
| 2996 | return max_index; |
| 2997 | } |
| 2998 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 2999 | static void store_bss_info(struct atmel_private *priv, |
| 3000 | struct ieee80211_hdr_4addr *header, u16 capability, |
| 3001 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, |
| 3002 | u8 *ssid, int is_beacon) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3003 | { |
| 3004 | u8 *bss = capability & C80211_MGMT_CAPABILITY_ESS ? header->addr2 : header->addr3; |
| 3005 | int i, index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3006 | |
| 3007 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) |
| 3008 | if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3009 | index = i; |
| 3010 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3011 | /* If we process a probe and an entry from this BSS exists |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3012 | we will update the BSS entry with the info from this BSS. |
| 3013 | If we process a beacon we will only update RSSI */ |
| 3014 | |
| 3015 | if (index == -1) { |
| 3016 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) |
| 3017 | return; |
| 3018 | index = priv->BSS_list_entries++; |
| 3019 | memcpy(priv->BSSinfo[index].BSSID, bss, 6); |
| 3020 | priv->BSSinfo[index].RSSI = rssi; |
| 3021 | } else { |
| 3022 | if (rssi > priv->BSSinfo[index].RSSI) |
| 3023 | priv->BSSinfo[index].RSSI = rssi; |
| 3024 | if (is_beacon) |
| 3025 | return; |
| 3026 | } |
| 3027 | |
| 3028 | priv->BSSinfo[index].channel = channel; |
| 3029 | priv->BSSinfo[index].beacon_period = beacon_period; |
| 3030 | priv->BSSinfo[index].UsingWEP = capability & C80211_MGMT_CAPABILITY_Privacy; |
| 3031 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
| 3032 | priv->BSSinfo[index].SSIDsize = ssid_len; |
| 3033 | |
| 3034 | if (capability & C80211_MGMT_CAPABILITY_IBSS) |
| 3035 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
| 3036 | else if (capability & C80211_MGMT_CAPABILITY_ESS) |
| 3037 | priv->BSSinfo[index].BSStype =IW_MODE_INFRA; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3038 | |
| 3039 | priv->BSSinfo[index].preamble = capability & C80211_MGMT_CAPABILITY_ShortPreamble ? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3040 | SHORT_PREAMBLE : LONG_PREAMBLE; |
| 3041 | } |
| 3042 | |
| 3043 | static void authenticate(struct atmel_private *priv, u16 frame_len) |
| 3044 | { |
| 3045 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; |
| 3046 | u16 status = le16_to_cpu(auth->status); |
| 3047 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3048 | u16 system = le16_to_cpu(auth->alg); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3049 | |
| 3050 | if (status == C80211_MGMT_SC_Success && !priv->wep_is_on) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3051 | /* no WEP */ |
| 3052 | if (priv->station_was_associated) { |
| 3053 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); |
| 3054 | send_association_request(priv, 1); |
| 3055 | return; |
| 3056 | } else { |
| 3057 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); |
| 3058 | send_association_request(priv, 0); |
| 3059 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3060 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3061 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3062 | |
| 3063 | if (status == C80211_MGMT_SC_Success && priv->wep_is_on) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3064 | /* WEP */ |
| 3065 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) |
| 3066 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3067 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3068 | if (trans_seq_no == 0x0002 && |
| 3069 | auth->el_id == C80211_MGMT_ElementID_ChallengeText) { |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3070 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3071 | return; |
| 3072 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3073 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3074 | if (trans_seq_no == 0x0004) { |
| 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 | } |
| 3086 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3087 | if (status == C80211_MGMT_SC_AuthAlgNotSupported) { |
| 3088 | /* Do opensystem first, then try sharedkey */ |
| 3089 | if (system == C80211_MGMT_AAN_OPENSYSTEM) { |
| 3090 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
| 3091 | send_authentication_request(priv, C80211_MGMT_AAN_SHAREDKEY, NULL, 0); |
| 3092 | } else if (priv->connect_to_any_BSS) { |
| 3093 | int bss_index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3094 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3095 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3096 | |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3097 | if ((bss_index = retrieve_bss(priv)) != -1) { |
| 3098 | atmel_join_bss(priv, bss_index); |
| 3099 | return; |
| 3100 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3101 | } |
| 3102 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3104 | priv->AuthenticationRequestRetryCnt = 0; |
| 3105 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3106 | priv->station_is_associated = 0; |
| 3107 | } |
| 3108 | |
| 3109 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) |
| 3110 | { |
| 3111 | struct ass_resp_format { |
| 3112 | u16 capability; |
| 3113 | u16 status; |
| 3114 | u16 ass_id; |
| 3115 | u8 el_id; |
| 3116 | u8 length; |
| 3117 | u8 rates[4]; |
| 3118 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3119 | |
| 3120 | u16 status = le16_to_cpu(ass_resp->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3121 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3122 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
| 3123 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3124 | union iwreq_data wrqu; |
| 3125 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3126 | if (frame_len < 8 + rates_len) |
| 3127 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3128 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3129 | if (status == C80211_MGMT_SC_Success) { |
| 3130 | if (subtype == C80211_SUBTYPE_MGMT_ASS_RESPONSE) |
| 3131 | priv->AssociationRequestRetryCnt = 0; |
| 3132 | else |
| 3133 | priv->ReAssociationRequestRetryCnt = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3134 | |
| 3135 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3136 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); |
| 3137 | atmel_set_mib(priv, Phy_Mib_Type, |
| 3138 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3139 | if (priv->power_mode == 0) { |
| 3140 | priv->listen_interval = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3141 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3142 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 3143 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3144 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3145 | } else { |
| 3146 | priv->listen_interval = 2; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3147 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3148 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); |
| 3149 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3150 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3151 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3153 | priv->station_is_associated = 1; |
| 3154 | priv->station_was_associated = 1; |
| 3155 | atmel_enter_state(priv, STATION_STATE_READY); |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3156 | |
| 3157 | /* Send association event to userspace */ |
| 3158 | wrqu.data.length = 0; |
| 3159 | wrqu.data.flags = 0; |
| 3160 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); |
| 3161 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 3162 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 3163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3164 | return; |
| 3165 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3167 | if (subtype == C80211_SUBTYPE_MGMT_ASS_RESPONSE && |
| 3168 | status != C80211_MGMT_SC_AssDeniedBSSRate && |
| 3169 | status != C80211_MGMT_SC_SupportCapabilities && |
| 3170 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
| 3171 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3172 | priv->AssociationRequestRetryCnt++; |
| 3173 | send_association_request(priv, 0); |
| 3174 | return; |
| 3175 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3176 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3177 | if (subtype == C80211_SUBTYPE_MGMT_REASS_RESPONSE && |
| 3178 | status != C80211_MGMT_SC_AssDeniedBSSRate && |
| 3179 | status != C80211_MGMT_SC_SupportCapabilities && |
| 3180 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
| 3181 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3182 | priv->ReAssociationRequestRetryCnt++; |
| 3183 | send_association_request(priv, 1); |
| 3184 | return; |
| 3185 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3186 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3187 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3188 | priv->station_is_associated = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3189 | |
| 3190 | if (priv->connect_to_any_BSS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3191 | int bss_index; |
| 3192 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3193 | |
| 3194 | if ((bss_index = retrieve_bss(priv)) != -1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3195 | atmel_join_bss(priv, bss_index); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3196 | } |
| 3197 | } |
| 3198 | |
| 3199 | void atmel_join_bss(struct atmel_private *priv, int bss_index) |
| 3200 | { |
| 3201 | struct bss_info *bss = &priv->BSSinfo[bss_index]; |
| 3202 | |
| 3203 | memcpy(priv->CurrentBSSID, bss->BSSID, 6); |
| 3204 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); |
| 3205 | |
| 3206 | /* The WPA stuff cares about the current AP address */ |
| 3207 | if (priv->use_wpa) |
| 3208 | build_wpa_mib(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3209 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3210 | /* When switching to AdHoc turn OFF Power Save if needed */ |
| 3211 | |
| 3212 | if (bss->BSStype == IW_MODE_ADHOC && |
| 3213 | priv->operating_mode != IW_MODE_ADHOC && |
| 3214 | priv->power_mode) { |
| 3215 | priv->power_mode = 0; |
| 3216 | priv->listen_interval = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3217 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
| 3218 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 3219 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, |
| 3220 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3221 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3222 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3223 | priv->operating_mode = bss->BSStype; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3224 | priv->channel = bss->channel & 0x7f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3225 | priv->beacon_period = bss->beacon_period; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3226 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3227 | if (priv->preamble != bss->preamble) { |
| 3228 | priv->preamble = bss->preamble; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3229 | atmel_set_mib8(priv, Local_Mib_Type, |
| 3230 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3231 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3232 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3233 | if (!priv->wep_is_on && bss->UsingWEP) { |
| 3234 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3235 | priv->station_is_associated = 0; |
| 3236 | return; |
| 3237 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3239 | if (priv->wep_is_on && !bss->UsingWEP) { |
| 3240 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3241 | priv->station_is_associated = 0; |
| 3242 | return; |
| 3243 | } |
| 3244 | |
| 3245 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3246 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3247 | if (priv->operating_mode == IW_MODE_INFRA) |
| 3248 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3249 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3250 | join(priv, BSS_TYPE_AD_HOC); |
| 3251 | } |
| 3252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3253 | static void restart_search(struct atmel_private *priv) |
| 3254 | { |
| 3255 | int bss_index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3256 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3257 | if (!priv->connect_to_any_BSS) { |
| 3258 | atmel_scan(priv, 1); |
| 3259 | } else { |
| 3260 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3261 | |
| 3262 | if ((bss_index = retrieve_bss(priv)) != -1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3263 | atmel_join_bss(priv, bss_index); |
| 3264 | else |
| 3265 | atmel_scan(priv, 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3266 | } |
| 3267 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3268 | |
| 3269 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) |
| 3270 | { |
| 3271 | u8 old = priv->wstats.qual.level; |
| 3272 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ |
| 3273 | |
| 3274 | switch (priv->firmware_type) { |
| 3275 | case ATMEL_FW_TYPE_502E: |
| 3276 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ |
| 3277 | break; |
| 3278 | default: |
| 3279 | break; |
| 3280 | } |
| 3281 | |
| 3282 | rssi = rssi * 100 / max_rssi; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3283 | if ((rssi + old) % 2) |
| 3284 | priv->wstats.qual.level = (rssi + old) / 2 + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3285 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3286 | priv->wstats.qual.level = (rssi + old) / 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3287 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
| 3288 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; |
| 3289 | } |
| 3290 | |
| 3291 | static void atmel_smooth_qual(struct atmel_private *priv) |
| 3292 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3293 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3294 | while (time_diff--) { |
| 3295 | priv->last_qual += HZ; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3296 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
| 3297 | priv->wstats.qual.qual += |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3298 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
| 3299 | priv->beacons_this_sec = 0; |
| 3300 | } |
| 3301 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; |
| 3302 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; |
| 3303 | } |
| 3304 | |
| 3305 | /* deals with incoming managment frames. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3306 | static void atmel_management_frame(struct atmel_private *priv, |
| 3307 | struct ieee80211_hdr_4addr *header, |
| 3308 | u16 frame_len, u8 rssi) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3309 | { |
| 3310 | u16 subtype; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3311 | |
| 3312 | subtype = le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_STYPE; |
| 3313 | switch (subtype) { |
| 3314 | case C80211_SUBTYPE_MGMT_BEACON: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3315 | case C80211_SUBTYPE_MGMT_ProbeResponse: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3316 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3317 | /* beacon frame has multiple variable-length fields - |
| 3318 | never let an engineer loose with a data structure design. */ |
| 3319 | { |
| 3320 | struct beacon_format { |
| 3321 | u64 timestamp; |
| 3322 | u16 interval; |
| 3323 | u16 capability; |
| 3324 | u8 ssid_el_id; |
| 3325 | u8 ssid_length; |
| 3326 | /* ssid here */ |
| 3327 | u8 rates_el_id; |
| 3328 | u8 rates_length; |
| 3329 | /* rates here */ |
| 3330 | u8 ds_el_id; |
| 3331 | u8 ds_length; |
| 3332 | /* ds here */ |
| 3333 | } *beacon = (struct beacon_format *)priv->rx_buf; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3335 | u8 channel, rates_length, ssid_length; |
| 3336 | u64 timestamp = le64_to_cpu(beacon->timestamp); |
| 3337 | u16 beacon_interval = le16_to_cpu(beacon->interval); |
| 3338 | u16 capability = le16_to_cpu(beacon->capability); |
| 3339 | u8 *beaconp = priv->rx_buf; |
| 3340 | ssid_length = beacon->ssid_length; |
| 3341 | /* this blows chunks. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3342 | if (frame_len < 14 || frame_len < ssid_length + 15) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3343 | return; |
| 3344 | rates_length = beaconp[beacon->ssid_length + 15]; |
| 3345 | if (frame_len < ssid_length + rates_length + 18) |
| 3346 | return; |
| 3347 | if (ssid_length > MAX_SSID_LENGTH) |
| 3348 | return; |
| 3349 | channel = beaconp[ssid_length + rates_length + 18]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3350 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3351 | if (priv->station_state == STATION_STATE_READY) { |
| 3352 | smooth_rssi(priv, rssi); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3353 | if (is_frame_from_current_bss(priv, header)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3354 | priv->beacons_this_sec++; |
| 3355 | atmel_smooth_qual(priv); |
| 3356 | if (priv->last_beacon_timestamp) { |
| 3357 | /* Note truncate this to 32 bits - kernel can't divide a long long */ |
| 3358 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; |
| 3359 | int beacons = beacon_delay / (beacon_interval * 1000); |
| 3360 | if (beacons > 1) |
| 3361 | priv->wstats.miss.beacon += beacons - 1; |
| 3362 | } |
| 3363 | priv->last_beacon_timestamp = timestamp; |
| 3364 | handle_beacon_probe(priv, capability, channel); |
| 3365 | } |
| 3366 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3367 | |
| 3368 | if (priv->station_state == STATION_STATE_SCANNING) |
| 3369 | store_bss_info(priv, header, capability, |
| 3370 | beacon_interval, channel, rssi, |
| 3371 | ssid_length, |
| 3372 | &beacon->rates_el_id, |
| 3373 | subtype == C80211_SUBTYPE_MGMT_BEACON); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3374 | } |
| 3375 | break; |
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 | case C80211_SUBTYPE_MGMT_Authentication: |
| 3378 | |
| 3379 | if (priv->station_state == STATION_STATE_AUTHENTICATING) |
| 3380 | authenticate(priv, frame_len); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3381 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3382 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3383 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3384 | case C80211_SUBTYPE_MGMT_ASS_RESPONSE: |
| 3385 | case C80211_SUBTYPE_MGMT_REASS_RESPONSE: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3386 | |
| 3387 | if (priv->station_state == STATION_STATE_ASSOCIATING || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3388 | priv->station_state == STATION_STATE_REASSOCIATING) |
| 3389 | associate(priv, frame_len, subtype); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3390 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3391 | break; |
| 3392 | |
| 3393 | case C80211_SUBTYPE_MGMT_DISASSOSIATION: |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3394 | if (priv->station_is_associated && |
| 3395 | priv->operating_mode == IW_MODE_INFRA && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3396 | is_frame_from_current_bss(priv, header)) { |
| 3397 | priv->station_was_associated = 0; |
| 3398 | priv->station_is_associated = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3399 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3400 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
| 3401 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
| 3402 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3403 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3404 | break; |
| 3405 | |
| 3406 | case C80211_SUBTYPE_MGMT_Deauthentication: |
| 3407 | if (priv->operating_mode == IW_MODE_INFRA && |
| 3408 | is_frame_from_current_bss(priv, header)) { |
| 3409 | priv->station_was_associated = 0; |
| 3410 | |
| 3411 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
| 3412 | join(priv, BSS_TYPE_INFRASTRUCTURE); |
| 3413 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3415 | break; |
| 3416 | } |
| 3417 | } |
| 3418 | |
| 3419 | /* run when timer expires */ |
| 3420 | static void atmel_management_timer(u_long a) |
| 3421 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3422 | struct net_device *dev = (struct net_device *) a; |
| 3423 | struct atmel_private *priv = netdev_priv(dev); |
| 3424 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3425 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3426 | /* Check if the card has been yanked. */ |
| 3427 | if (priv->card && priv->present_callback && |
| 3428 | !(*priv->present_callback)(priv->card)) |
| 3429 | return; |
| 3430 | |
| 3431 | spin_lock_irqsave(&priv->irqlock, flags); |
| 3432 | |
| 3433 | switch (priv->station_state) { |
| 3434 | |
| 3435 | case STATION_STATE_AUTHENTICATING: |
| 3436 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { |
| 3437 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3438 | priv->station_is_associated = 0; |
| 3439 | priv->AuthenticationRequestRetryCnt = 0; |
| 3440 | restart_search(priv); |
| 3441 | } else { |
| 3442 | priv->AuthenticationRequestRetryCnt++; |
| 3443 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
| 3444 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3445 | send_authentication_request(priv, C80211_MGMT_AAN_OPENSYSTEM, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3446 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3447 | break; |
| 3448 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3449 | case STATION_STATE_ASSOCIATING: |
| 3450 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { |
| 3451 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3452 | priv->station_is_associated = 0; |
| 3453 | priv->AssociationRequestRetryCnt = 0; |
| 3454 | restart_search(priv); |
| 3455 | } else { |
| 3456 | priv->AssociationRequestRetryCnt++; |
| 3457 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3458 | send_association_request(priv, 0); |
| 3459 | } |
| 3460 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3461 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3462 | case STATION_STATE_REASSOCIATING: |
| 3463 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { |
| 3464 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
| 3465 | priv->station_is_associated = 0; |
| 3466 | priv->ReAssociationRequestRetryCnt = 0; |
| 3467 | restart_search(priv); |
| 3468 | } else { |
| 3469 | priv->ReAssociationRequestRetryCnt++; |
| 3470 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3471 | send_association_request(priv, 1); |
| 3472 | } |
| 3473 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3474 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3475 | default: |
| 3476 | break; |
| 3477 | } |
| 3478 | |
| 3479 | spin_unlock_irqrestore(&priv->irqlock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3480 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3482 | static void atmel_command_irq(struct atmel_private *priv) |
| 3483 | { |
| 3484 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); |
| 3485 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); |
| 3486 | int fast_scan; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3487 | |
| 3488 | if (status == CMD_STATUS_IDLE || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3489 | status == CMD_STATUS_IN_PROGRESS) |
| 3490 | return; |
| 3491 | |
| 3492 | switch (command){ |
| 3493 | |
| 3494 | case CMD_Start: |
| 3495 | if (status == CMD_STATUS_COMPLETE) { |
| 3496 | priv->station_was_associated = priv->station_is_associated; |
| 3497 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
| 3498 | (u8 *)priv->CurrentBSSID, 6); |
| 3499 | atmel_enter_state(priv, STATION_STATE_READY); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3500 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3501 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3503 | case CMD_Scan: |
| 3504 | fast_scan = priv->fast_scan; |
| 3505 | priv->fast_scan = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3506 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3507 | if (status != CMD_STATUS_COMPLETE) { |
| 3508 | atmel_scan(priv, 1); |
| 3509 | } else { |
| 3510 | int bss_index = retrieve_bss(priv); |
| 3511 | if (bss_index != -1) { |
| 3512 | atmel_join_bss(priv, bss_index); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3513 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3514 | priv->SSID_size != 0) { |
| 3515 | start(priv, BSS_TYPE_AD_HOC); |
| 3516 | } else { |
| 3517 | priv->fast_scan = !fast_scan; |
| 3518 | atmel_scan(priv, 1); |
| 3519 | } |
| 3520 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
| 3521 | } |
| 3522 | break; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3523 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3524 | case CMD_SiteSurvey: |
| 3525 | priv->fast_scan = 0; |
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 | if (status != CMD_STATUS_COMPLETE) |
| 3528 | return; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3529 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3530 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
| 3531 | if (priv->station_is_associated) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3532 | atmel_enter_state(priv, STATION_STATE_READY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3533 | } else { |
| 3534 | atmel_scan(priv, 1); |
| 3535 | } |
| 3536 | break; |
| 3537 | |
| 3538 | case CMD_Join: |
| 3539 | if (status == CMD_STATUS_COMPLETE) { |
| 3540 | if (priv->operating_mode == IW_MODE_ADHOC) { |
| 3541 | priv->station_was_associated = priv->station_is_associated; |
| 3542 | atmel_enter_state(priv, STATION_STATE_READY); |
| 3543 | } else { |
| 3544 | priv->AuthenticationRequestRetryCnt = 0; |
| 3545 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3546 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3547 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
| 3548 | priv->CurrentAuthentTransactionSeqNum = 0x0001; |
simon@thekelleys.org.uk | b16a228 | 2005-10-30 15:50:15 +0000 | [diff] [blame] | 3549 | send_authentication_request(priv, C80211_MGMT_AAN_SHAREDKEY, NULL, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3550 | } |
| 3551 | return; |
| 3552 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3553 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3554 | atmel_scan(priv, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3555 | } |
| 3556 | } |
| 3557 | |
| 3558 | static int atmel_wakeup_firmware(struct atmel_private *priv) |
| 3559 | { |
| 3560 | struct host_info_struct *iface = &priv->host_info; |
| 3561 | u16 mr1, mr3; |
| 3562 | int i; |
| 3563 | |
| 3564 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
| 3565 | atmel_set_gcr(priv->dev, GCR_REMAP); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3566 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3567 | /* wake up on-board processor */ |
| 3568 | atmel_clear_gcr(priv->dev, 0x0040); |
| 3569 | atmel_write16(priv->dev, BSR, BSS_SRAM); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3570 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3571 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
| 3572 | mdelay(100); |
| 3573 | |
| 3574 | /* and wait for it */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3575 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3576 | mr1 = atmel_read16(priv->dev, MR1); |
| 3577 | mr3 = atmel_read16(priv->dev, MR3); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3578 | |
| 3579 | if (mr3 & MAC_BOOT_COMPLETE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3580 | break; |
| 3581 | if (mr1 & MAC_BOOT_COMPLETE && |
| 3582 | priv->bus_type == BUS_TYPE_PCCARD) |
| 3583 | break; |
| 3584 | } |
| 3585 | |
| 3586 | if (i == 0) { |
| 3587 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); |
| 3588 | return 0; |
| 3589 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3591 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
| 3592 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); |
| 3593 | return 0; |
| 3594 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3595 | |
| 3596 | /* now check for completion of MAC initialization through |
| 3597 | the FunCtrl field of the IFACE, poll MR1 to detect completion of |
| 3598 | MAC initialization, check completion status, set interrupt mask, |
| 3599 | enables interrupts and calls Tx and Rx initialization functions */ |
| 3600 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3601 | 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] | 3602 | |
| 3603 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3604 | mr1 = atmel_read16(priv->dev, MR1); |
| 3605 | mr3 = atmel_read16(priv->dev, MR3); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3606 | |
| 3607 | if (mr3 & MAC_INIT_COMPLETE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3608 | break; |
| 3609 | if (mr1 & MAC_INIT_COMPLETE && |
| 3610 | priv->bus_type == BUS_TYPE_PCCARD) |
| 3611 | break; |
| 3612 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3613 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3614 | if (i == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3615 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
| 3616 | priv->dev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3617 | return 0; |
| 3618 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3619 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3620 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
| 3621 | if ((mr3 & MAC_INIT_COMPLETE) && |
| 3622 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { |
| 3623 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); |
| 3624 | return 0; |
| 3625 | } |
| 3626 | if ((mr1 & MAC_INIT_COMPLETE) && |
| 3627 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { |
| 3628 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); |
| 3629 | return 0; |
| 3630 | } |
| 3631 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3632 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3633 | priv->host_info_base, sizeof(*iface)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3634 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3635 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
| 3636 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); |
| 3637 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); |
| 3638 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); |
| 3639 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); |
| 3640 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); |
| 3641 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); |
| 3642 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); |
| 3643 | iface->build_version = le16_to_cpu(iface->build_version); |
| 3644 | iface->command_pos = le16_to_cpu(iface->command_pos); |
| 3645 | iface->major_version = le16_to_cpu(iface->major_version); |
| 3646 | iface->minor_version = le16_to_cpu(iface->minor_version); |
| 3647 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); |
| 3648 | iface->mac_status = le16_to_cpu(iface->mac_status); |
| 3649 | |
| 3650 | return 1; |
| 3651 | } |
| 3652 | |
| 3653 | /* determine type of memory and MAC address */ |
| 3654 | static int probe_atmel_card(struct net_device *dev) |
| 3655 | { |
| 3656 | int rc = 0; |
| 3657 | struct atmel_private *priv = netdev_priv(dev); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3658 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3659 | /* reset pccard */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3660 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3661 | atmel_write16(dev, GCR, 0x0060); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3662 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3663 | atmel_write16(dev, GCR, 0x0040); |
| 3664 | mdelay(500); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3666 | if (atmel_read16(dev, MR2) == 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3667 | /* No stored firmware so load a small stub which just |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3668 | tells us the MAC address */ |
| 3669 | int i; |
| 3670 | priv->card_type = CARD_TYPE_EEPROM; |
| 3671 | atmel_write16(dev, BSR, BSS_IRAM); |
| 3672 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); |
| 3673 | atmel_set_gcr(dev, GCR_REMAP); |
| 3674 | atmel_clear_gcr(priv->dev, 0x0040); |
| 3675 | atmel_write16(dev, BSR, BSS_SRAM); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3676 | for (i = LOOP_RETRY_LIMIT; i; i--) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3677 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
| 3678 | break; |
| 3679 | if (i == 0) { |
| 3680 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); |
| 3681 | } else { |
| 3682 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); |
| 3683 | /* got address, now squash it again until the network |
| 3684 | interface is opened */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3685 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3686 | atmel_write16(dev, GCR, 0x0060); |
| 3687 | atmel_write16(dev, GCR, 0x0040); |
| 3688 | rc = 1; |
| 3689 | } |
| 3690 | } else if (atmel_read16(dev, MR4) == 0) { |
| 3691 | /* Mac address easy in this case. */ |
| 3692 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3693 | atmel_write16(dev, BSR, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3694 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
| 3695 | atmel_write16(dev, BSR, 0x200); |
| 3696 | rc = 1; |
| 3697 | } else { |
| 3698 | /* Standard firmware in flash, boot it up and ask |
| 3699 | for the Mac Address */ |
| 3700 | priv->card_type = CARD_TYPE_SPI_FLASH; |
| 3701 | if (atmel_wakeup_firmware(priv)) { |
| 3702 | 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] | 3703 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3704 | /* got address, now squash it again until the network |
| 3705 | interface is opened */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3706 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3707 | atmel_write16(dev, GCR, 0x0060); |
| 3708 | atmel_write16(dev, GCR, 0x0040); |
| 3709 | rc = 1; |
| 3710 | } |
| 3711 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3712 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3713 | if (rc) { |
| 3714 | if (dev->dev_addr[0] == 0xFF) { |
| 3715 | u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00}; |
| 3716 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); |
| 3717 | memcpy(dev->dev_addr, default_mac, 6); |
| 3718 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3719 | } |
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 | return rc; |
| 3722 | } |
| 3723 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3724 | /* Move the encyption information on the MIB structure. |
| 3725 | This routine is for the pre-WPA firmware: later firmware has |
| 3726 | a different format MIB and a different routine. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3727 | static void build_wep_mib(struct atmel_private *priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3728 | { |
| 3729 | struct { /* NB this is matched to the hardware, don't change. */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3730 | u8 wep_is_on; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3731 | u8 default_key; /* 0..3 */ |
| 3732 | u8 reserved; |
| 3733 | u8 exclude_unencrypted; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3734 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3735 | u32 WEPICV_error_count; |
| 3736 | u32 WEP_excluded_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3738 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3739 | u8 encryption_level; /* 0, 1, 2 */ |
| 3740 | u8 reserved2[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3741 | } mib; |
| 3742 | int i; |
| 3743 | |
| 3744 | mib.wep_is_on = priv->wep_is_on; |
| 3745 | if (priv->wep_is_on) { |
| 3746 | if (priv->wep_key_len[priv->default_key] > 5) |
| 3747 | mib.encryption_level = 2; |
| 3748 | else |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3749 | mib.encryption_level = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3750 | } else { |
| 3751 | mib.encryption_level = 0; |
| 3752 | } |
| 3753 | |
| 3754 | mib.default_key = priv->default_key; |
| 3755 | mib.exclude_unencrypted = priv->exclude_unencrypted; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3756 | |
| 3757 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3758 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3760 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
| 3761 | } |
| 3762 | |
| 3763 | static void build_wpa_mib(struct atmel_private *priv) |
| 3764 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3765 | /* This is for the later (WPA enabled) firmware. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3766 | |
| 3767 | struct { /* NB this is matched to the hardware, don't change. */ |
| 3768 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; |
| 3769 | u8 receiver_address[6]; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3770 | u8 wep_is_on; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3771 | u8 default_key; /* 0..3 */ |
| 3772 | u8 group_key; |
| 3773 | u8 exclude_unencrypted; |
| 3774 | u8 encryption_type; |
| 3775 | u8 reserved; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3777 | u32 WEPICV_error_count; |
| 3778 | u32 WEP_excluded_count; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3779 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3780 | u8 key_RSC[4][8]; |
| 3781 | } mib; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3782 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3783 | int i; |
| 3784 | |
| 3785 | mib.wep_is_on = priv->wep_is_on; |
| 3786 | mib.exclude_unencrypted = priv->exclude_unencrypted; |
| 3787 | memcpy(mib.receiver_address, priv->CurrentBSSID, 6); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3788 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3789 | /* zero all the keys before adding in valid ones. */ |
| 3790 | 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] | 3791 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3792 | if (priv->wep_is_on) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3793 | /* There's a comment in the Atmel code to the effect that this |
| 3794 | is only valid when still using WEP, it may need to be set to |
| 3795 | something to use WPA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3796 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
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 | mib.default_key = mib.group_key = 255; |
| 3799 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { |
| 3800 | if (priv->wep_key_len[i] > 0) { |
| 3801 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); |
| 3802 | if (i == priv->default_key) { |
| 3803 | mib.default_key = i; |
| 3804 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3805 | 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] | 3806 | } else { |
| 3807 | mib.group_key = i; |
| 3808 | priv->group_cipher_suite = priv->pairwise_cipher_suite; |
| 3809 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3810 | 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] | 3811 | } |
| 3812 | } |
| 3813 | } |
| 3814 | if (mib.default_key == 255) |
| 3815 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; |
| 3816 | if (mib.group_key == 255) |
| 3817 | mib.group_key = mib.default_key; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3818 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3819 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3820 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3821 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
| 3822 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3823 | |
| 3824 | static int reset_atmel_card(struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3825 | { |
| 3826 | /* do everything necessary to wake up the hardware, including |
| 3827 | waiting for the lightning strike and throwing the knife switch.... |
| 3828 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3829 | set all the Mib values which matter in the card to match |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3830 | their settings in the atmel_private structure. Some of these |
| 3831 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) |
| 3832 | can only be changed by tearing down the world and coming back through |
| 3833 | here. |
| 3834 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3835 | This routine is also responsible for initialising some |
| 3836 | hardware-specific fields in the atmel_private structure, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3837 | including a copy of the firmware's hostinfo stucture |
| 3838 | which is the route into the rest of the firmare datastructures. */ |
| 3839 | |
| 3840 | struct atmel_private *priv = netdev_priv(dev); |
| 3841 | u8 configuration; |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 3842 | int old_state = priv->station_state; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3843 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3844 | /* data to add to the firmware names, in priority order |
| 3845 | this implemenents firmware versioning */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3846 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3847 | static char *firmware_modifier[] = { |
| 3848 | "-wpa", |
| 3849 | "", |
| 3850 | NULL |
| 3851 | }; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3852 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3853 | /* reset pccard */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3854 | if (priv->bus_type == BUS_TYPE_PCCARD) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3855 | atmel_write16(priv->dev, GCR, 0x0060); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3856 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3857 | /* stop card , disable interrupts */ |
| 3858 | atmel_write16(priv->dev, GCR, 0x0040); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3859 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3860 | if (priv->card_type == CARD_TYPE_EEPROM) { |
| 3861 | /* copy in firmware if needed */ |
| 3862 | const struct firmware *fw_entry = NULL; |
| 3863 | unsigned char *fw; |
| 3864 | int len = priv->firmware_length; |
| 3865 | if (!(fw = priv->firmware)) { |
| 3866 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { |
| 3867 | if (strlen(priv->firmware_id) == 0) { |
| 3868 | printk(KERN_INFO |
| 3869 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", |
| 3870 | dev->name); |
| 3871 | printk(KERN_INFO |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3872 | "%s: if not, use the firmware= module parameter.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3873 | dev->name); |
| 3874 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); |
| 3875 | } |
| 3876 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) != 0) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3877 | printk(KERN_ALERT |
| 3878 | "%s: firmware %s is missing, cannot continue.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3879 | dev->name, priv->firmware_id); |
| 3880 | return 0; |
| 3881 | } |
| 3882 | } else { |
| 3883 | int fw_index = 0; |
| 3884 | int success = 0; |
| 3885 | |
| 3886 | /* get firmware filename entry based on firmware type ID */ |
| 3887 | while (fw_table[fw_index].fw_type != priv->firmware_type |
| 3888 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) |
| 3889 | fw_index++; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3890 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3891 | /* construct the actual firmware file name */ |
| 3892 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { |
| 3893 | int i; |
| 3894 | for (i = 0; firmware_modifier[i]; i++) { |
| 3895 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, |
| 3896 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); |
| 3897 | priv->firmware_id[31] = '\0'; |
| 3898 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { |
| 3899 | success = 1; |
| 3900 | break; |
| 3901 | } |
| 3902 | } |
| 3903 | } |
| 3904 | if (!success) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3905 | printk(KERN_ALERT |
| 3906 | "%s: firmware %s is missing, cannot start.\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3907 | dev->name, priv->firmware_id); |
| 3908 | priv->firmware_id[0] = '\0'; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3909 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3910 | } |
| 3911 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3912 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3913 | fw = fw_entry->data; |
| 3914 | len = fw_entry->size; |
| 3915 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3916 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3917 | if (len <= 0x6000) { |
| 3918 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
| 3919 | atmel_copy_to_card(priv->dev, 0, fw, len); |
| 3920 | atmel_set_gcr(priv->dev, GCR_REMAP); |
| 3921 | } else { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3922 | /* Remap */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3923 | atmel_set_gcr(priv->dev, GCR_REMAP); |
| 3924 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
| 3925 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); |
| 3926 | atmel_write16(priv->dev, BSR, 0x2ff); |
| 3927 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); |
| 3928 | } |
| 3929 | |
| 3930 | if (fw_entry) |
| 3931 | release_firmware(fw_entry); |
| 3932 | } |
| 3933 | |
| 3934 | if (!atmel_wakeup_firmware(priv)) |
| 3935 | return 0; |
| 3936 | |
| 3937 | /* Check the version and set the correct flag for wpa stuff, |
| 3938 | old and new firmware is incompatible. |
| 3939 | The pre-wpa 3com firmware reports major version 5, |
| 3940 | the wpa 3com firmware is major version 4 and doesn't need |
| 3941 | the 3com broken-ness filter. */ |
| 3942 | priv->use_wpa = (priv->host_info.major_version == 4); |
| 3943 | priv->radio_on_broken = (priv->host_info.major_version == 5); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3944 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3945 | /* unmask all irq sources */ |
| 3946 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3947 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3948 | /* int Tx system and enable Tx */ |
| 3949 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); |
| 3950 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); |
| 3951 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); |
| 3952 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); |
| 3953 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3954 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
| 3955 | priv->tx_desc_head = 0; |
| 3956 | priv->tx_desc_tail = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3957 | priv->tx_desc_previous = 0; |
| 3958 | priv->tx_free_mem = priv->host_info.tx_buff_size; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3959 | priv->tx_buff_head = 0; |
| 3960 | priv->tx_buff_tail = 0; |
| 3961 | |
| 3962 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); |
| 3963 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3964 | configuration | FUNC_CTRL_TxENABLE); |
| 3965 | |
| 3966 | /* init Rx system and enable */ |
| 3967 | priv->rx_desc_head = 0; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3968 | |
| 3969 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); |
| 3970 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3971 | configuration | FUNC_CTRL_RxENABLE); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3972 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3973 | if (!priv->radio_on_broken) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3974 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3975 | CMD_STATUS_REJECTED_RADIO_OFF) { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3976 | printk(KERN_INFO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3977 | "%s: cannot turn the radio on. (Hey radio, you're beautiful!)\n", |
| 3978 | dev->name); |
| 3979 | return 0; |
| 3980 | } |
| 3981 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 3982 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3983 | /* set up enough MIB values to run. */ |
| 3984 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); |
| 3985 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); |
| 3986 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); |
| 3987 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); |
| 3988 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); |
| 3989 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); |
| 3990 | 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] | 3991 | 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] | 3992 | priv->dev->dev_addr, 6); |
| 3993 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); |
| 3994 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); |
| 3995 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); |
| 3996 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); |
| 3997 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); |
| 3998 | if (priv->use_wpa) |
| 3999 | build_wpa_mib(priv); |
| 4000 | else |
| 4001 | build_wep_mib(priv); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4002 | |
Dan Williams | 9a6301c | 2006-01-10 00:56:11 -0500 | [diff] [blame] | 4003 | if (old_state == STATION_STATE_READY) |
| 4004 | { |
| 4005 | union iwreq_data wrqu; |
| 4006 | |
| 4007 | wrqu.data.length = 0; |
| 4008 | wrqu.data.flags = 0; |
| 4009 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
| 4010 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 4011 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
| 4012 | } |
| 4013 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4014 | return 1; |
| 4015 | } |
| 4016 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4017 | static void atmel_send_command(struct atmel_private *priv, int command, |
| 4018 | void *cmd, int cmd_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4019 | { |
| 4020 | if (cmd) |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4021 | 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] | 4022 | cmd, cmd_size); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4023 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4024 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
| 4025 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); |
| 4026 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4027 | |
| 4028 | static int atmel_send_command_wait(struct atmel_private *priv, int command, |
| 4029 | void *cmd, int cmd_size) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4030 | { |
| 4031 | int i, status; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4033 | atmel_send_command(priv, command, cmd, cmd_size); |
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 | for (i = 5000; i; i--) { |
| 4036 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4037 | if (status != CMD_STATUS_IDLE && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4038 | status != CMD_STATUS_IN_PROGRESS) |
| 4039 | break; |
| 4040 | udelay(20); |
| 4041 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4042 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4043 | if (i == 0) { |
| 4044 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); |
| 4045 | status = CMD_STATUS_HOST_ERROR; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4046 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4047 | if (command != CMD_EnableRadio) |
| 4048 | status = CMD_STATUS_COMPLETE; |
| 4049 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4050 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4051 | return status; |
| 4052 | } |
| 4053 | |
| 4054 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) |
| 4055 | { |
| 4056 | struct get_set_mib m; |
| 4057 | m.type = type; |
| 4058 | m.size = 1; |
| 4059 | m.index = index; |
| 4060 | |
| 4061 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); |
| 4062 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); |
| 4063 | } |
| 4064 | |
| 4065 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) |
| 4066 | { |
| 4067 | struct get_set_mib m; |
| 4068 | m.type = type; |
| 4069 | m.size = 1; |
| 4070 | m.index = index; |
| 4071 | m.data[0] = data; |
| 4072 | |
| 4073 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); |
| 4074 | } |
| 4075 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4076 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
| 4077 | u16 data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4078 | { |
| 4079 | struct get_set_mib m; |
| 4080 | m.type = type; |
| 4081 | m.size = 2; |
| 4082 | m.index = index; |
| 4083 | m.data[0] = data; |
| 4084 | m.data[1] = data >> 8; |
| 4085 | |
| 4086 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); |
| 4087 | } |
| 4088 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4089 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
| 4090 | u8 *data, int data_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4091 | { |
| 4092 | struct get_set_mib m; |
| 4093 | m.type = type; |
| 4094 | m.size = data_len; |
| 4095 | m.index = index; |
| 4096 | |
| 4097 | if (data_len > MIB_MAX_DATA_BYTES) |
| 4098 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4099 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4100 | memcpy(m.data, data, data_len); |
| 4101 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
| 4102 | } |
| 4103 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4104 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
| 4105 | u8 *data, int data_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4106 | { |
| 4107 | struct get_set_mib m; |
| 4108 | m.type = type; |
| 4109 | m.size = data_len; |
| 4110 | m.index = index; |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4112 | if (data_len > MIB_MAX_DATA_BYTES) |
| 4113 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4115 | 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] | 4116 | atmel_copy_to_host(priv->dev, data, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4117 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
| 4118 | } |
| 4119 | |
| 4120 | static void atmel_writeAR(struct net_device *dev, u16 data) |
| 4121 | { |
| 4122 | int i; |
| 4123 | outw(data, dev->base_addr + AR); |
| 4124 | /* Address register appears to need some convincing..... */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4125 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4126 | outw(data, dev->base_addr + AR); |
| 4127 | } |
| 4128 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4129 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
| 4130 | unsigned char *src, u16 len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4131 | { |
| 4132 | int i; |
| 4133 | atmel_writeAR(dev, dest); |
| 4134 | if (dest % 2) { |
| 4135 | atmel_write8(dev, DR, *src); |
| 4136 | src++; len--; |
| 4137 | } |
| 4138 | for (i = len; i > 1 ; i -= 2) { |
| 4139 | u8 lb = *src++; |
| 4140 | u8 hb = *src++; |
| 4141 | atmel_write16(dev, DR, lb | (hb << 8)); |
| 4142 | } |
| 4143 | if (i) |
| 4144 | atmel_write8(dev, DR, *src); |
| 4145 | } |
| 4146 | |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4147 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
| 4148 | u16 src, u16 len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4149 | { |
| 4150 | int i; |
| 4151 | atmel_writeAR(dev, src); |
| 4152 | if (src % 2) { |
| 4153 | *dest = atmel_read8(dev, DR); |
| 4154 | dest++; len--; |
| 4155 | } |
| 4156 | for (i = len; i > 1 ; i -= 2) { |
| 4157 | u16 hw = atmel_read16(dev, DR); |
| 4158 | *dest++ = hw; |
| 4159 | *dest++ = hw >> 8; |
| 4160 | } |
| 4161 | if (i) |
| 4162 | *dest = atmel_read8(dev, DR); |
| 4163 | } |
| 4164 | |
| 4165 | static void atmel_set_gcr(struct net_device *dev, u16 mask) |
| 4166 | { |
| 4167 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); |
| 4168 | } |
| 4169 | |
| 4170 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) |
| 4171 | { |
| 4172 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); |
| 4173 | } |
| 4174 | |
| 4175 | static int atmel_lock_mac(struct atmel_private *priv) |
| 4176 | { |
| 4177 | int i, j = 20; |
| 4178 | retry: |
| 4179 | for (i = 5000; i; i--) { |
| 4180 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) |
| 4181 | break; |
| 4182 | udelay(20); |
| 4183 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4184 | |
| 4185 | if (!i) |
| 4186 | return 0; /* timed out */ |
| 4187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4188 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
| 4189 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { |
| 4190 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4191 | if (!j--) |
| 4192 | return 0; /* timed out */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4193 | goto retry; |
| 4194 | } |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4195 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4196 | return 1; |
| 4197 | } |
| 4198 | |
| 4199 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) |
| 4200 | { |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4201 | atmel_writeAR(priv->dev, pos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4202 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
| 4203 | atmel_write16(priv->dev, DR, data >> 16); |
| 4204 | } |
| 4205 | |
| 4206 | /***************************************************************************/ |
| 4207 | /* There follows the source form of the MAC address reading firmware */ |
| 4208 | /***************************************************************************/ |
| 4209 | #if 0 |
| 4210 | |
| 4211 | /* Copyright 2003 Matthew T. Russotto */ |
| 4212 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ |
| 4213 | /* included in "atmel wireless lan drivers" package */ |
| 4214 | /** |
| 4215 | This file is part of net.russotto.AtmelMACFW, hereto referred to |
| 4216 | as AtmelMACFW |
| 4217 | |
| 4218 | AtmelMACFW is free software; you can redistribute it and/or modify |
| 4219 | it under the terms of the GNU General Public License version 2 |
| 4220 | as published by the Free Software Foundation. |
| 4221 | |
| 4222 | AtmelMACFW is distributed in the hope that it will be useful, |
| 4223 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 4224 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 4225 | GNU General Public License for more details. |
| 4226 | |
| 4227 | You should have received a copy of the GNU General Public License |
| 4228 | along with AtmelMACFW; if not, write to the Free Software |
| 4229 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 4230 | |
| 4231 | ****************************************************************************/ |
| 4232 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ |
| 4233 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ |
| 4234 | /* It only works on SPI EEPROM versions of the card. */ |
| 4235 | |
| 4236 | /* This firmware initializes the SPI controller and clock, reads the MAC */ |
| 4237 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ |
| 4238 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ |
| 4239 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ |
| 4240 | /* MR4, for investigational purposes (maybe we can determine chip type */ |
| 4241 | /* from that?) */ |
| 4242 | |
| 4243 | .org 0 |
| 4244 | .set MRBASE, 0x8000000 |
| 4245 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ |
| 4246 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ |
| 4247 | .set SRAM_BASE, 0x02000000 |
| 4248 | .set SP_BASE, 0x0F300000 |
| 4249 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ |
| 4250 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ |
| 4251 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ |
| 4252 | .set STACK_BASE, 0x5600 |
| 4253 | .set SP_SR, 0x10 |
| 4254 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ |
| 4255 | .set SP_RDRF, 1 /* status register bit -- RDR full */ |
| 4256 | .set SP_SWRST, 0x80 |
| 4257 | .set SP_SPIEN, 0x1 |
| 4258 | .set SP_CR, 0 /* control register */ |
| 4259 | .set SP_MR, 4 /* mode register */ |
| 4260 | .set SP_RDR, 0x08 /* Read Data Register */ |
| 4261 | .set SP_TDR, 0x0C /* Transmit Data Register */ |
| 4262 | .set SP_CSR0, 0x30 /* chip select registers */ |
| 4263 | .set SP_CSR1, 0x34 |
| 4264 | .set SP_CSR2, 0x38 |
| 4265 | .set SP_CSR3, 0x3C |
| 4266 | .set NVRAM_CMD_RDSR, 5 /* read status register */ |
| 4267 | .set NVRAM_CMD_READ, 3 /* read data */ |
| 4268 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ |
| 4269 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the |
| 4270 | serial output, since SO is normally high. But it |
| 4271 | does cause 8 clock cycles and thus 8 bits to be |
| 4272 | clocked in to the chip. See Atmel's SPI |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4273 | controller (e.g. AT91M55800) timing and 4K |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4274 | SPI EEPROM manuals */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4276 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
| 4277 | .set NVRAM_IMAGE, 0x02000200 |
| 4278 | .set NVRAM_LENGTH, 0x0200 |
| 4279 | .set MAC_ADDRESS_MIB, SRAM_BASE |
| 4280 | .set MAC_ADDRESS_LENGTH, 6 |
| 4281 | .set MAC_BOOT_FLAG, 0x10 |
| 4282 | .set MR1, 0 |
| 4283 | .set MR2, 4 |
| 4284 | .set MR3, 8 |
| 4285 | .set MR4, 0xC |
| 4286 | RESET_VECTOR: |
| 4287 | b RESET_HANDLER |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4288 | UNDEF_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4289 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4290 | SWI_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4291 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4292 | IABORT_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4293 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4294 | DABORT_VECTOR: |
| 4295 | RESERVED_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4296 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4297 | IRQ_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4298 | b HALT1 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4299 | FIQ_VECTOR: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4300 | b HALT1 |
| 4301 | HALT1: b HALT1 |
| 4302 | RESET_HANDLER: |
| 4303 | mov r0, #CPSR_INITIAL |
| 4304 | msr CPSR_c, r0 /* This is probably unnecessary */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4306 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
| 4307 | ldr r0, =SPI_CGEN_BASE |
| 4308 | mov r1, #0 |
| 4309 | mov r1, r1, lsl #3 |
| 4310 | orr r1,r1, #0 |
| 4311 | str r1, [r0] |
| 4312 | ldr r1, [r0, #28] |
| 4313 | bic r1, r1, #16 |
| 4314 | str r1, [r0, #28] |
| 4315 | mov r1, #1 |
| 4316 | str r1, [r0, #8] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4317 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4318 | ldr r0, =MRBASE |
| 4319 | mov r1, #0 |
| 4320 | strh r1, [r0, #MR1] |
| 4321 | strh r1, [r0, #MR2] |
| 4322 | strh r1, [r0, #MR3] |
| 4323 | strh r1, [r0, #MR4] |
| 4324 | |
| 4325 | mov sp, #STACK_BASE |
| 4326 | bl SP_INIT |
| 4327 | mov r0, #10 |
| 4328 | bl DELAY9 |
| 4329 | bl GET_MAC_ADDR |
| 4330 | bl GET_WHOLE_NVRAM |
| 4331 | ldr r0, =MRBASE |
| 4332 | ldr r1, =MAC_ADDRESS_MIB |
| 4333 | strh r1, [r0, #MR2] |
| 4334 | ldr r1, =NVRAM_IMAGE |
| 4335 | strh r1, [r0, #MR4] |
| 4336 | mov r1, #MAC_BOOT_FLAG |
| 4337 | strh r1, [r0, #MR3] |
| 4338 | HALT2: b HALT2 |
| 4339 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM |
| 4340 | GET_WHOLE_NVRAM: |
| 4341 | stmdb sp!, {lr} |
| 4342 | mov r2, #0 /* 0th bytes of NVRAM */ |
| 4343 | mov r3, #NVRAM_LENGTH |
| 4344 | mov r1, #0 /* not used in routine */ |
| 4345 | ldr r0, =NVRAM_IMAGE |
| 4346 | bl NVRAM_XFER |
| 4347 | ldmia sp!, {lr} |
| 4348 | bx lr |
| 4349 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4350 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4351 | .func Get_MAC_Addr, GET_MAC_ADDR |
| 4352 | GET_MAC_ADDR: |
| 4353 | stmdb sp!, {lr} |
| 4354 | mov r2, #0x120 /* address of MAC Address within NVRAM */ |
| 4355 | mov r3, #MAC_ADDRESS_LENGTH |
| 4356 | mov r1, #0 /* not used in routine */ |
| 4357 | ldr r0, =MAC_ADDRESS_MIB |
| 4358 | bl NVRAM_XFER |
| 4359 | ldmia sp!, {lr} |
| 4360 | bx lr |
| 4361 | .endfunc |
| 4362 | .ltorg |
| 4363 | .func Delay9, DELAY9 |
| 4364 | DELAY9: |
| 4365 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4366 | DELAYLOOP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4367 | beq DELAY9_done |
| 4368 | subs r0, r0, #1 |
| 4369 | b DELAYLOOP |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4370 | DELAY9_done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4371 | bx lr |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4372 | .endfunc |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4373 | |
| 4374 | .func SP_Init, SP_INIT |
| 4375 | SP_INIT: |
| 4376 | mov r1, #SP_SWRST |
| 4377 | ldr r0, =SP_BASE |
| 4378 | str r1, [r0, #SP_CR] /* reset the SPI */ |
| 4379 | mov r1, #0 |
| 4380 | str r1, [r0, #SP_CR] /* release SPI from reset state */ |
| 4381 | mov r1, #SP_SPIEN |
| 4382 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ |
| 4383 | str r1, [r0, #SP_CR] /* enable the SPI */ |
| 4384 | |
| 4385 | /* My guess would be this turns on the SPI clock */ |
| 4386 | ldr r3, =SPI_CGEN_BASE |
| 4387 | ldr r1, [r3, #28] |
| 4388 | orr r1, r1, #0x2000 |
| 4389 | str r1, [r3, #28] |
| 4390 | |
| 4391 | ldr r1, =0x2000c01 |
| 4392 | str r1, [r0, #SP_CSR0] |
| 4393 | ldr r1, =0x2000201 |
| 4394 | str r1, [r0, #SP_CSR1] |
| 4395 | str r1, [r0, #SP_CSR2] |
| 4396 | str r1, [r0, #SP_CSR3] |
| 4397 | ldr r1, [r0, #SP_SR] |
| 4398 | ldr r0, [r0, #SP_RDR] |
| 4399 | bx lr |
| 4400 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4401 | .func NVRAM_Init, NVRAM_INIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4402 | NVRAM_INIT: |
| 4403 | ldr r1, =SP_BASE |
| 4404 | ldr r0, [r1, #SP_RDR] |
| 4405 | mov r0, #NVRAM_CMD_RDSR |
| 4406 | str r0, [r1, #SP_TDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4407 | SP_loop1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4408 | ldr r0, [r1, #SP_SR] |
| 4409 | tst r0, #SP_TDRE |
| 4410 | beq SP_loop1 |
| 4411 | |
| 4412 | mov r0, #SPI_8CLOCKS |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4413 | str r0, [r1, #SP_TDR] |
| 4414 | SP_loop2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4415 | ldr r0, [r1, #SP_SR] |
| 4416 | tst r0, #SP_TDRE |
| 4417 | beq SP_loop2 |
| 4418 | |
| 4419 | ldr r0, [r1, #SP_RDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4420 | SP_loop3: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4421 | ldr r0, [r1, #SP_SR] |
| 4422 | tst r0, #SP_RDRF |
| 4423 | beq SP_loop3 |
| 4424 | |
| 4425 | ldr r0, [r1, #SP_RDR] |
| 4426 | and r0, r0, #255 |
| 4427 | bx lr |
| 4428 | .endfunc |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4429 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4430 | .func NVRAM_Xfer, NVRAM_XFER |
| 4431 | /* r0 = dest address */ |
| 4432 | /* r1 = not used */ |
| 4433 | /* r2 = src address within NVRAM */ |
| 4434 | /* r3 = length */ |
| 4435 | NVRAM_XFER: |
| 4436 | stmdb sp!, {r4, r5, lr} |
| 4437 | mov r5, r0 /* save r0 (dest address) */ |
| 4438 | mov r4, r3 /* save r3 (length) */ |
| 4439 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ |
| 4440 | and r0, r0, #8 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4441 | add r0, r0, #NVRAM_CMD_READ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4442 | ldr r1, =NVRAM_SCRATCH |
| 4443 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ |
| 4444 | 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] | 4445 | _local1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4446 | bl NVRAM_INIT |
| 4447 | tst r0, #NVRAM_SR_RDY |
| 4448 | bne _local1 |
| 4449 | mov r0, #20 |
| 4450 | bl DELAY9 |
| 4451 | mov r2, r4 /* length */ |
| 4452 | mov r1, r5 /* dest address */ |
| 4453 | mov r0, #2 /* bytes to transfer in command */ |
| 4454 | bl NVRAM_XFER2 |
| 4455 | ldmia sp!, {r4, r5, lr} |
| 4456 | bx lr |
| 4457 | .endfunc |
| 4458 | |
| 4459 | .func NVRAM_Xfer2, NVRAM_XFER2 |
| 4460 | NVRAM_XFER2: |
| 4461 | stmdb sp!, {r4, r5, r6, lr} |
| 4462 | ldr r4, =SP_BASE |
| 4463 | mov r3, #0 |
| 4464 | cmp r0, #0 |
| 4465 | bls _local2 |
| 4466 | ldr r5, =NVRAM_SCRATCH |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4467 | _local4: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4468 | ldrb r6, [r5, r3] |
| 4469 | str r6, [r4, #SP_TDR] |
| 4470 | _local3: |
| 4471 | ldr r6, [r4, #SP_SR] |
| 4472 | tst r6, #SP_TDRE |
| 4473 | beq _local3 |
| 4474 | add r3, r3, #1 |
| 4475 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ |
| 4476 | blo _local4 |
| 4477 | _local2: |
| 4478 | mov r3, #SPI_8CLOCKS |
| 4479 | str r3, [r4, #SP_TDR] |
| 4480 | ldr r0, [r4, #SP_RDR] |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4481 | _local5: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4482 | ldr r0, [r4, #SP_SR] |
| 4483 | tst r0, #SP_RDRF |
| 4484 | beq _local5 |
| 4485 | 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 */ |
| 4486 | mov r0, #0 |
| 4487 | cmp r2, #0 /* r2 is # of bytes to copy in */ |
| 4488 | bls _local6 |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4489 | _local7: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4490 | ldr r5, [r4, #SP_SR] |
| 4491 | tst r5, #SP_TDRE |
| 4492 | beq _local7 |
| 4493 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ |
Carlo Perassi | 4d791aa | 2005-11-13 15:02:15 +0300 | [diff] [blame] | 4494 | _local8: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4495 | ldr r5, [r4, #SP_SR] |
| 4496 | tst r5, #SP_RDRF |
| 4497 | beq _local8 |
| 4498 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ |
| 4499 | strb r5, [r1], #1 /* postindexed */ |
| 4500 | add r0, r0, #1 |
| 4501 | cmp r0, r2 |
| 4502 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ |
| 4503 | _local6: |
| 4504 | mov r0, #200 |
| 4505 | bl DELAY9 |
| 4506 | ldmia sp!, {r4, r5, r6, lr} |
| 4507 | bx lr |
| 4508 | #endif |