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1da177e4 LT |
1 | /*** -*- linux-c -*- ********************************************************** |
2 | ||
3 | Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. | |
4 | ||
8830cb67 JD |
5 | Copyright 2000-2001 ATMEL Corporation. |
6 | Copyright 2003-2004 Simon Kelley. | |
1da177e4 | 7 | |
4d791aad CP |
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, | |
1da177e4 LT |
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 | |
36769159 JK |
31 | along with Atmel wireless lan drivers; if not, see |
32 | <http://www.gnu.org/licenses/>. | |
1da177e4 | 33 | |
4d791aad | 34 | For all queries about this code, please contact the current author, |
1da177e4 LT |
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 | ||
a6b7a407 | 42 | #include <linux/interrupt.h> |
1da177e4 LT |
43 | |
44 | #include <linux/kernel.h> | |
1da177e4 LT |
45 | #include <linux/ptrace.h> |
46 | #include <linux/slab.h> | |
47 | #include <linux/string.h> | |
1da177e4 | 48 | #include <linux/timer.h> |
9a6ab769 | 49 | #include <asm/byteorder.h> |
1da177e4 | 50 | #include <asm/io.h> |
1da177e4 LT |
51 | #include <asm/uaccess.h> |
52 | #include <linux/module.h> | |
53 | #include <linux/netdevice.h> | |
54 | #include <linux/etherdevice.h> | |
55 | #include <linux/skbuff.h> | |
56 | #include <linux/if_arp.h> | |
57 | #include <linux/ioport.h> | |
58 | #include <linux/fcntl.h> | |
59 | #include <linux/delay.h> | |
60 | #include <linux/wireless.h> | |
61 | #include <net/iw_handler.h> | |
1da177e4 LT |
62 | #include <linux/crc32.h> |
63 | #include <linux/proc_fs.h> | |
4c4df9b9 | 64 | #include <linux/seq_file.h> |
1da177e4 LT |
65 | #include <linux/device.h> |
66 | #include <linux/moduleparam.h> | |
67 | #include <linux/firmware.h> | |
6e33e30d | 68 | #include <linux/jiffies.h> |
61e5487b | 69 | #include <net/cfg80211.h> |
1da177e4 LT |
70 | #include "atmel.h" |
71 | ||
72 | #define DRIVER_MAJOR 0 | |
b16a228d | 73 | #define DRIVER_MINOR 98 |
1da177e4 LT |
74 | |
75 | MODULE_AUTHOR("Simon Kelley"); | |
76 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); | |
77 | MODULE_LICENSE("GPL"); | |
78 | MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards"); | |
79 | ||
4d791aad | 80 | /* The name of the firmware file to be loaded |
1da177e4 LT |
81 | over-rides any automatic selection */ |
82 | static char *firmware = NULL; | |
83 | module_param(firmware, charp, 0); | |
84 | ||
85 | /* table of firmware file names */ | |
4d791aad | 86 | static struct { |
1da177e4 LT |
87 | AtmelFWType fw_type; |
88 | const char *fw_file; | |
89 | const char *fw_file_ext; | |
90 | } fw_table[] = { | |
8830cb67 JD |
91 | { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" }, |
92 | { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" }, | |
93 | { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" }, | |
94 | { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" }, | |
95 | { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" }, | |
96 | { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" }, | |
97 | { ATMEL_FW_TYPE_504A_2958, "atmel_at76c504a_2958", "bin" }, | |
98 | { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" }, | |
99 | { ATMEL_FW_TYPE_NONE, NULL, NULL } | |
1da177e4 | 100 | }; |
b98a032f BH |
101 | MODULE_FIRMWARE("atmel_at76c502-wpa.bin"); |
102 | MODULE_FIRMWARE("atmel_at76c502.bin"); | |
103 | MODULE_FIRMWARE("atmel_at76c502d-wpa.bin"); | |
104 | MODULE_FIRMWARE("atmel_at76c502d.bin"); | |
105 | MODULE_FIRMWARE("atmel_at76c502e-wpa.bin"); | |
106 | MODULE_FIRMWARE("atmel_at76c502e.bin"); | |
107 | MODULE_FIRMWARE("atmel_at76c502_3com-wpa.bin"); | |
108 | MODULE_FIRMWARE("atmel_at76c502_3com.bin"); | |
109 | MODULE_FIRMWARE("atmel_at76c504-wpa.bin"); | |
110 | MODULE_FIRMWARE("atmel_at76c504.bin"); | |
111 | MODULE_FIRMWARE("atmel_at76c504_2958-wpa.bin"); | |
112 | MODULE_FIRMWARE("atmel_at76c504_2958.bin"); | |
113 | MODULE_FIRMWARE("atmel_at76c504a_2958-wpa.bin"); | |
114 | MODULE_FIRMWARE("atmel_at76c504a_2958.bin"); | |
115 | MODULE_FIRMWARE("atmel_at76c506-wpa.bin"); | |
116 | MODULE_FIRMWARE("atmel_at76c506.bin"); | |
1da177e4 LT |
117 | |
118 | #define MAX_SSID_LENGTH 32 | |
119 | #define MGMT_JIFFIES (256 * HZ / 100) | |
120 | ||
4d791aad | 121 | #define MAX_BSS_ENTRIES 64 |
1da177e4 LT |
122 | |
123 | /* registers */ | |
8830cb67 JD |
124 | #define GCR 0x00 /* (SIR0) General Configuration Register */ |
125 | #define BSR 0x02 /* (SIR1) Bank Switching Select Register */ | |
1da177e4 LT |
126 | #define AR 0x04 |
127 | #define DR 0x08 | |
8830cb67 JD |
128 | #define MR1 0x12 /* Mirror Register 1 */ |
129 | #define MR2 0x14 /* Mirror Register 2 */ | |
130 | #define MR3 0x16 /* Mirror Register 3 */ | |
131 | #define MR4 0x18 /* Mirror Register 4 */ | |
1da177e4 LT |
132 | |
133 | #define GPR1 0x0c | |
134 | #define GPR2 0x0e | |
135 | #define GPR3 0x10 | |
8830cb67 JD |
136 | /* |
137 | * Constants for the GCR register. | |
138 | */ | |
139 | #define GCR_REMAP 0x0400 /* Remap internal SRAM to 0 */ | |
140 | #define GCR_SWRES 0x0080 /* BIU reset (ARM and PAI are NOT reset) */ | |
141 | #define GCR_CORES 0x0060 /* Core Reset (ARM and PAI are reset) */ | |
142 | #define GCR_ENINT 0x0002 /* Enable Interrupts */ | |
143 | #define GCR_ACKINT 0x0008 /* Acknowledge Interrupts */ | |
144 | ||
145 | #define BSS_SRAM 0x0200 /* AMBA module selection --> SRAM */ | |
146 | #define BSS_IRAM 0x0100 /* AMBA module selection --> IRAM */ | |
147 | /* | |
148 | *Constants for the MR registers. | |
149 | */ | |
150 | #define MAC_INIT_COMPLETE 0x0001 /* MAC init has been completed */ | |
151 | #define MAC_BOOT_COMPLETE 0x0010 /* MAC boot has been completed */ | |
152 | #define MAC_INIT_OK 0x0002 /* MAC boot has been completed */ | |
1da177e4 | 153 | |
1da177e4 LT |
154 | #define MIB_MAX_DATA_BYTES 212 |
155 | #define MIB_HEADER_SIZE 4 /* first four fields */ | |
156 | ||
157 | struct get_set_mib { | |
8830cb67 JD |
158 | u8 type; |
159 | u8 size; | |
160 | u8 index; | |
161 | u8 reserved; | |
162 | u8 data[MIB_MAX_DATA_BYTES]; | |
1da177e4 LT |
163 | }; |
164 | ||
165 | struct rx_desc { | |
8830cb67 JD |
166 | u32 Next; |
167 | u16 MsduPos; | |
168 | u16 MsduSize; | |
169 | ||
170 | u8 State; | |
171 | u8 Status; | |
172 | u8 Rate; | |
173 | u8 Rssi; | |
174 | u8 LinkQuality; | |
175 | u8 PreambleType; | |
176 | u16 Duration; | |
177 | u32 RxTime; | |
1da177e4 LT |
178 | }; |
179 | ||
180 | #define RX_DESC_FLAG_VALID 0x80 | |
181 | #define RX_DESC_FLAG_CONSUMED 0x40 | |
182 | #define RX_DESC_FLAG_IDLE 0x00 | |
183 | ||
184 | #define RX_STATUS_SUCCESS 0x00 | |
185 | ||
186 | #define RX_DESC_MSDU_POS_OFFSET 4 | |
187 | #define RX_DESC_MSDU_SIZE_OFFSET 6 | |
188 | #define RX_DESC_FLAGS_OFFSET 8 | |
189 | #define RX_DESC_STATUS_OFFSET 9 | |
190 | #define RX_DESC_RSSI_OFFSET 11 | |
191 | #define RX_DESC_LINK_QUALITY_OFFSET 12 | |
192 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 | |
193 | #define RX_DESC_DURATION_OFFSET 14 | |
194 | #define RX_DESC_RX_TIME_OFFSET 16 | |
195 | ||
1da177e4 LT |
196 | struct tx_desc { |
197 | u32 NextDescriptor; | |
198 | u16 TxStartOfFrame; | |
199 | u16 TxLength; | |
4d791aad | 200 | |
1da177e4 LT |
201 | u8 TxState; |
202 | u8 TxStatus; | |
203 | u8 RetryCount; | |
4d791aad | 204 | |
1da177e4 LT |
205 | u8 TxRate; |
206 | ||
207 | u8 KeyIndex; | |
208 | u8 ChiperType; | |
209 | u8 ChipreLength; | |
8830cb67 | 210 | u8 Reserved1; |
1da177e4 LT |
211 | |
212 | u8 Reserved; | |
213 | u8 PacketType; | |
214 | u16 HostTxLength; | |
1da177e4 LT |
215 | }; |
216 | ||
1da177e4 LT |
217 | #define TX_DESC_NEXT_OFFSET 0 |
218 | #define TX_DESC_POS_OFFSET 4 | |
219 | #define TX_DESC_SIZE_OFFSET 6 | |
220 | #define TX_DESC_FLAGS_OFFSET 8 | |
221 | #define TX_DESC_STATUS_OFFSET 9 | |
222 | #define TX_DESC_RETRY_OFFSET 10 | |
223 | #define TX_DESC_RATE_OFFSET 11 | |
224 | #define TX_DESC_KEY_INDEX_OFFSET 12 | |
225 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 | |
226 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 | |
227 | #define TX_DESC_PACKET_TYPE_OFFSET 17 | |
228 | #define TX_DESC_HOST_LENGTH_OFFSET 18 | |
229 | ||
8830cb67 JD |
230 | /* |
231 | * Host-MAC interface | |
232 | */ | |
1da177e4 LT |
233 | |
234 | #define TX_STATUS_SUCCESS 0x00 | |
235 | ||
236 | #define TX_FIRM_OWN 0x80 | |
237 | #define TX_DONE 0x40 | |
238 | ||
1da177e4 LT |
239 | #define TX_ERROR 0x01 |
240 | ||
241 | #define TX_PACKET_TYPE_DATA 0x01 | |
242 | #define TX_PACKET_TYPE_MGMT 0x02 | |
243 | ||
8830cb67 JD |
244 | #define ISR_EMPTY 0x00 /* no bits set in ISR */ |
245 | #define ISR_TxCOMPLETE 0x01 /* packet transmitted */ | |
246 | #define ISR_RxCOMPLETE 0x02 /* packet received */ | |
247 | #define ISR_RxFRAMELOST 0x04 /* Rx Frame lost */ | |
248 | #define ISR_FATAL_ERROR 0x08 /* Fatal error */ | |
249 | #define ISR_COMMAND_COMPLETE 0x10 /* command completed */ | |
250 | #define ISR_OUT_OF_RANGE 0x20 /* command completed */ | |
251 | #define ISR_IBSS_MERGE 0x40 /* (4.1.2.30): IBSS merge */ | |
4d791aad | 252 | #define ISR_GENERIC_IRQ 0x80 |
1da177e4 LT |
253 | |
254 | #define Local_Mib_Type 0x01 | |
255 | #define Mac_Address_Mib_Type 0x02 | |
256 | #define Mac_Mib_Type 0x03 | |
257 | #define Statistics_Mib_Type 0x04 | |
258 | #define Mac_Mgmt_Mib_Type 0x05 | |
259 | #define Mac_Wep_Mib_Type 0x06 | |
260 | #define Phy_Mib_Type 0x07 | |
261 | #define Multi_Domain_MIB 0x08 | |
262 | ||
263 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
264 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 | |
265 | #define MAC_MIB_RTS_THRESHOLD_POS 10 | |
266 | #define MAC_MIB_SHORT_RETRY_POS 16 | |
267 | #define MAC_MIB_LONG_RETRY_POS 17 | |
268 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 | |
269 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 | |
270 | #define MAC_MGMT_MIB_STATION_ID_POS 6 | |
271 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 | |
272 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
273 | #define MAC_MGMT_MIB_PS_MODE_POS 53 | |
274 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 | |
275 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 | |
276 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 | |
277 | #define PHY_MIB_CHANNEL_POS 14 | |
278 | #define PHY_MIB_RATE_SET_POS 20 | |
279 | #define PHY_MIB_REG_DOMAIN_POS 26 | |
280 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 | |
281 | #define LOCAL_MIB_SSID_SIZE 5 | |
282 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 | |
283 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 | |
284 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 | |
285 | #define LOCAL_MIB_PREAMBLE_TYPE 9 | |
286 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 | |
287 | ||
1da177e4 LT |
288 | #define CMD_Set_MIB_Vars 0x01 |
289 | #define CMD_Get_MIB_Vars 0x02 | |
290 | #define CMD_Scan 0x03 | |
291 | #define CMD_Join 0x04 | |
292 | #define CMD_Start 0x05 | |
293 | #define CMD_EnableRadio 0x06 | |
294 | #define CMD_DisableRadio 0x07 | |
295 | #define CMD_SiteSurvey 0x0B | |
296 | ||
297 | #define CMD_STATUS_IDLE 0x00 | |
298 | #define CMD_STATUS_COMPLETE 0x01 | |
299 | #define CMD_STATUS_UNKNOWN 0x02 | |
300 | #define CMD_STATUS_INVALID_PARAMETER 0x03 | |
301 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 | |
302 | #define CMD_STATUS_TIME_OUT 0x07 | |
303 | #define CMD_STATUS_IN_PROGRESS 0x08 | |
304 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 | |
305 | #define CMD_STATUS_HOST_ERROR 0xFF | |
306 | #define CMD_STATUS_BUSY 0xFE | |
307 | ||
1da177e4 LT |
308 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
309 | #define CMD_BLOCK_STATUS_OFFSET 1 | |
310 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 | |
311 | ||
312 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 | |
313 | ||
314 | #define MGMT_FRAME_BODY_OFFSET 24 | |
315 | #define MAX_AUTHENTICATION_RETRIES 3 | |
4d791aad | 316 | #define MAX_ASSOCIATION_RETRIES 3 |
1da177e4 LT |
317 | |
318 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 | |
319 | ||
320 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ | |
321 | #define LOOP_RETRY_LIMIT 500000 | |
322 | ||
4d791aad CP |
323 | #define ACTIVE_MODE 1 |
324 | #define PS_MODE 2 | |
1da177e4 LT |
325 | |
326 | #define MAX_ENCRYPTION_KEYS 4 | |
327 | #define MAX_ENCRYPTION_KEY_SIZE 40 | |
328 | ||
8830cb67 JD |
329 | /* |
330 | * 802.11 related definitions | |
331 | */ | |
1da177e4 | 332 | |
8830cb67 JD |
333 | /* |
334 | * Regulatory Domains | |
335 | */ | |
1da177e4 | 336 | |
8830cb67 JD |
337 | #define REG_DOMAIN_FCC 0x10 /* Channels 1-11 USA */ |
338 | #define REG_DOMAIN_DOC 0x20 /* Channel 1-11 Canada */ | |
339 | #define REG_DOMAIN_ETSI 0x30 /* Channel 1-13 Europe (ex Spain/France) */ | |
340 | #define REG_DOMAIN_SPAIN 0x31 /* Channel 10-11 Spain */ | |
341 | #define REG_DOMAIN_FRANCE 0x32 /* Channel 10-13 France */ | |
342 | #define REG_DOMAIN_MKK 0x40 /* Channel 14 Japan */ | |
343 | #define REG_DOMAIN_MKK1 0x41 /* Channel 1-14 Japan(MKK1) */ | |
344 | #define REG_DOMAIN_ISRAEL 0x50 /* Channel 3-9 ISRAEL */ | |
1da177e4 | 345 | |
4d791aad | 346 | #define BSS_TYPE_AD_HOC 1 |
1da177e4 LT |
347 | #define BSS_TYPE_INFRASTRUCTURE 2 |
348 | ||
349 | #define SCAN_TYPE_ACTIVE 0 | |
350 | #define SCAN_TYPE_PASSIVE 1 | |
351 | ||
352 | #define LONG_PREAMBLE 0 | |
353 | #define SHORT_PREAMBLE 1 | |
354 | #define AUTO_PREAMBLE 2 | |
355 | ||
356 | #define DATA_FRAME_WS_HEADER_SIZE 30 | |
357 | ||
4d791aad | 358 | /* promiscuous mode control */ |
1da177e4 LT |
359 | #define PROM_MODE_OFF 0x0 |
360 | #define PROM_MODE_UNKNOWN 0x1 | |
361 | #define PROM_MODE_CRC_FAILED 0x2 | |
362 | #define PROM_MODE_DUPLICATED 0x4 | |
363 | #define PROM_MODE_MGMT 0x8 | |
364 | #define PROM_MODE_CTRL 0x10 | |
365 | #define PROM_MODE_BAD_PROTOCOL 0x20 | |
366 | ||
4d791aad | 367 | #define IFACE_INT_STATUS_OFFSET 0 |
1da177e4 LT |
368 | #define IFACE_INT_MASK_OFFSET 1 |
369 | #define IFACE_LOCKOUT_HOST_OFFSET 2 | |
370 | #define IFACE_LOCKOUT_MAC_OFFSET 3 | |
371 | #define IFACE_FUNC_CTRL_OFFSET 28 | |
372 | #define IFACE_MAC_STAT_OFFSET 30 | |
373 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 | |
374 | ||
4d791aad | 375 | #define CIPHER_SUITE_NONE 0 |
1da177e4 LT |
376 | #define CIPHER_SUITE_WEP_64 1 |
377 | #define CIPHER_SUITE_TKIP 2 | |
378 | #define CIPHER_SUITE_AES 3 | |
379 | #define CIPHER_SUITE_CCX 4 | |
380 | #define CIPHER_SUITE_WEP_128 5 | |
381 | ||
8830cb67 JD |
382 | /* |
383 | * IFACE MACROS & definitions | |
384 | */ | |
1da177e4 | 385 | |
8830cb67 JD |
386 | /* |
387 | * FuncCtrl field: | |
388 | */ | |
1da177e4 LT |
389 | #define FUNC_CTRL_TxENABLE 0x10 |
390 | #define FUNC_CTRL_RxENABLE 0x20 | |
4d791aad | 391 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
1da177e4 LT |
392 | |
393 | /* A stub firmware image which reads the MAC address from NVRAM on the card. | |
394 | For copyright information and source see the end of this file. */ | |
395 | static u8 mac_reader[] = { | |
8830cb67 JD |
396 | 0x06, 0x00, 0x00, 0xea, 0x04, 0x00, 0x00, 0xea, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x00, 0xea, |
397 | 0x01, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0xea, 0xff, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea, | |
398 | 0xd3, 0x00, 0xa0, 0xe3, 0x00, 0xf0, 0x21, 0xe1, 0x0e, 0x04, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
399 | 0x81, 0x11, 0xa0, 0xe1, 0x00, 0x10, 0x81, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x1c, 0x10, 0x90, 0xe5, | |
400 | 0x10, 0x10, 0xc1, 0xe3, 0x1c, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x08, 0x10, 0x80, 0xe5, | |
401 | 0x02, 0x03, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, 0xb0, 0x10, 0xc0, 0xe1, 0xb4, 0x10, 0xc0, 0xe1, | |
402 | 0xb8, 0x10, 0xc0, 0xe1, 0xbc, 0x10, 0xc0, 0xe1, 0x56, 0xdc, 0xa0, 0xe3, 0x21, 0x00, 0x00, 0xeb, | |
403 | 0x0a, 0x00, 0xa0, 0xe3, 0x1a, 0x00, 0x00, 0xeb, 0x10, 0x00, 0x00, 0xeb, 0x07, 0x00, 0x00, 0xeb, | |
404 | 0x02, 0x03, 0xa0, 0xe3, 0x02, 0x14, 0xa0, 0xe3, 0xb4, 0x10, 0xc0, 0xe1, 0x4c, 0x10, 0x9f, 0xe5, | |
405 | 0xbc, 0x10, 0xc0, 0xe1, 0x10, 0x10, 0xa0, 0xe3, 0xb8, 0x10, 0xc0, 0xe1, 0xfe, 0xff, 0xff, 0xea, | |
406 | 0x00, 0x40, 0x2d, 0xe9, 0x00, 0x20, 0xa0, 0xe3, 0x02, 0x3c, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
407 | 0x28, 0x00, 0x9f, 0xe5, 0x37, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, | |
408 | 0x00, 0x40, 0x2d, 0xe9, 0x12, 0x2e, 0xa0, 0xe3, 0x06, 0x30, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
409 | 0x02, 0x04, 0xa0, 0xe3, 0x2f, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, | |
410 | 0x00, 0x02, 0x00, 0x02, 0x80, 0x01, 0x90, 0xe0, 0x01, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x50, 0xe2, | |
411 | 0xfc, 0xff, 0xff, 0xea, 0x1e, 0xff, 0x2f, 0xe1, 0x80, 0x10, 0xa0, 0xe3, 0xf3, 0x06, 0xa0, 0xe3, | |
412 | 0x00, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, | |
413 | 0x04, 0x10, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x0e, 0x34, 0xa0, 0xe3, 0x1c, 0x10, 0x93, 0xe5, | |
414 | 0x02, 0x1a, 0x81, 0xe3, 0x1c, 0x10, 0x83, 0xe5, 0x58, 0x11, 0x9f, 0xe5, 0x30, 0x10, 0x80, 0xe5, | |
415 | 0x54, 0x11, 0x9f, 0xe5, 0x34, 0x10, 0x80, 0xe5, 0x38, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0x80, 0xe5, | |
416 | 0x10, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x90, 0xe5, 0x1e, 0xff, 0x2f, 0xe1, 0xf3, 0x16, 0xa0, 0xe3, | |
417 | 0x08, 0x00, 0x91, 0xe5, 0x05, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, 0x10, 0x00, 0x91, 0xe5, | |
418 | 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0xff, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, | |
419 | 0x10, 0x00, 0x91, 0xe5, 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, | |
420 | 0x10, 0x00, 0x91, 0xe5, 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, | |
421 | 0xff, 0x00, 0x00, 0xe2, 0x1e, 0xff, 0x2f, 0xe1, 0x30, 0x40, 0x2d, 0xe9, 0x00, 0x50, 0xa0, 0xe1, | |
422 | 0x03, 0x40, 0xa0, 0xe1, 0xa2, 0x02, 0xa0, 0xe1, 0x08, 0x00, 0x00, 0xe2, 0x03, 0x00, 0x80, 0xe2, | |
423 | 0xd8, 0x10, 0x9f, 0xe5, 0x00, 0x00, 0xc1, 0xe5, 0x01, 0x20, 0xc1, 0xe5, 0xe2, 0xff, 0xff, 0xeb, | |
424 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x14, 0x00, 0xa0, 0xe3, 0xc4, 0xff, 0xff, 0xeb, | |
425 | 0x04, 0x20, 0xa0, 0xe1, 0x05, 0x10, 0xa0, 0xe1, 0x02, 0x00, 0xa0, 0xe3, 0x01, 0x00, 0x00, 0xeb, | |
426 | 0x30, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x70, 0x40, 0x2d, 0xe9, 0xf3, 0x46, 0xa0, 0xe3, | |
427 | 0x00, 0x30, 0xa0, 0xe3, 0x00, 0x00, 0x50, 0xe3, 0x08, 0x00, 0x00, 0x9a, 0x8c, 0x50, 0x9f, 0xe5, | |
428 | 0x03, 0x60, 0xd5, 0xe7, 0x0c, 0x60, 0x84, 0xe5, 0x10, 0x60, 0x94, 0xe5, 0x02, 0x00, 0x16, 0xe3, | |
429 | 0xfc, 0xff, 0xff, 0x0a, 0x01, 0x30, 0x83, 0xe2, 0x00, 0x00, 0x53, 0xe1, 0xf7, 0xff, 0xff, 0x3a, | |
430 | 0xff, 0x30, 0xa0, 0xe3, 0x0c, 0x30, 0x84, 0xe5, 0x08, 0x00, 0x94, 0xe5, 0x10, 0x00, 0x94, 0xe5, | |
431 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x94, 0xe5, 0x00, 0x00, 0xa0, 0xe3, | |
432 | 0x00, 0x00, 0x52, 0xe3, 0x0b, 0x00, 0x00, 0x9a, 0x10, 0x50, 0x94, 0xe5, 0x02, 0x00, 0x15, 0xe3, | |
433 | 0xfc, 0xff, 0xff, 0x0a, 0x0c, 0x30, 0x84, 0xe5, 0x10, 0x50, 0x94, 0xe5, 0x01, 0x00, 0x15, 0xe3, | |
434 | 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x50, 0x94, 0xe5, 0x01, 0x50, 0xc1, 0xe4, 0x01, 0x00, 0x80, 0xe2, | |
435 | 0x02, 0x00, 0x50, 0xe1, 0xf3, 0xff, 0xff, 0x3a, 0xc8, 0x00, 0xa0, 0xe3, 0x98, 0xff, 0xff, 0xeb, | |
436 | 0x70, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x01, 0x0c, 0x00, 0x02, 0x01, 0x02, 0x00, 0x02, | |
437 | 0x00, 0x01, 0x00, 0x02 | |
1da177e4 LT |
438 | }; |
439 | ||
440 | struct atmel_private { | |
25985edc | 441 | void *card; /* Bus dependent structure varies for PCcard */ |
1da177e4 LT |
442 | int (*present_callback)(void *); /* And callback which uses it */ |
443 | char firmware_id[32]; | |
444 | AtmelFWType firmware_type; | |
445 | u8 *firmware; | |
446 | int firmware_length; | |
447 | struct timer_list management_timer; | |
448 | struct net_device *dev; | |
449 | struct device *sys_dev; | |
450 | struct iw_statistics wstats; | |
8830cb67 | 451 | spinlock_t irqlock, timerlock; /* spinlocks */ |
1da177e4 | 452 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; |
4d791aad CP |
453 | enum { |
454 | CARD_TYPE_PARALLEL_FLASH, | |
1da177e4 | 455 | CARD_TYPE_SPI_FLASH, |
4d791aad | 456 | CARD_TYPE_EEPROM |
1da177e4 LT |
457 | } card_type; |
458 | int do_rx_crc; /* If we need to CRC incoming packets */ | |
459 | int probe_crc; /* set if we don't yet know */ | |
460 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ | |
461 | u16 rx_desc_head; | |
462 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; | |
463 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; | |
4d791aad | 464 | |
1da177e4 | 465 | u16 frag_seq, frag_len, frag_no; |
4d791aad CP |
466 | u8 frag_source[6]; |
467 | ||
1da177e4 LT |
468 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
469 | u8 group_cipher_suite, pairwise_cipher_suite; | |
470 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
4d791aad | 471 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
1da177e4 LT |
472 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
473 | ||
474 | u16 host_info_base; | |
4d791aad | 475 | struct host_info_struct { |
1da177e4 LT |
476 | /* NB this is matched to the hardware, don't change. */ |
477 | u8 volatile int_status; | |
478 | u8 volatile int_mask; | |
479 | u8 volatile lockout_host; | |
480 | u8 volatile lockout_mac; | |
481 | ||
482 | u16 tx_buff_pos; | |
483 | u16 tx_buff_size; | |
484 | u16 tx_desc_pos; | |
485 | u16 tx_desc_count; | |
486 | ||
487 | u16 rx_buff_pos; | |
488 | u16 rx_buff_size; | |
489 | u16 rx_desc_pos; | |
490 | u16 rx_desc_count; | |
4d791aad | 491 | |
1da177e4 | 492 | u16 build_version; |
4d791aad CP |
493 | u16 command_pos; |
494 | ||
1da177e4 LT |
495 | u16 major_version; |
496 | u16 minor_version; | |
4d791aad | 497 | |
1da177e4 LT |
498 | u16 func_ctrl; |
499 | u16 mac_status; | |
500 | u16 generic_IRQ_type; | |
501 | u8 reserved[2]; | |
502 | } host_info; | |
503 | ||
4d791aad | 504 | enum { |
1da177e4 LT |
505 | STATION_STATE_SCANNING, |
506 | STATION_STATE_JOINNING, | |
507 | STATION_STATE_AUTHENTICATING, | |
508 | STATION_STATE_ASSOCIATING, | |
509 | STATION_STATE_READY, | |
510 | STATION_STATE_REASSOCIATING, | |
511 | STATION_STATE_DOWN, | |
512 | STATION_STATE_MGMT_ERROR | |
513 | } station_state; | |
4d791aad | 514 | |
1da177e4 LT |
515 | int operating_mode, power_mode; |
516 | time_t last_qual; | |
517 | int beacons_this_sec; | |
518 | int channel; | |
519 | int reg_domain, config_reg_domain; | |
520 | int tx_rate; | |
521 | int auto_tx_rate; | |
522 | int rts_threshold; | |
523 | int frag_threshold; | |
524 | int long_retry, short_retry; | |
525 | int preamble; | |
526 | int default_beacon_period, beacon_period, listen_interval; | |
4d791aad | 527 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
1da177e4 LT |
528 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
529 | enum { | |
530 | SITE_SURVEY_IDLE, | |
531 | SITE_SURVEY_IN_PROGRESS, | |
4d791aad | 532 | SITE_SURVEY_COMPLETED |
1da177e4 | 533 | } site_survey_state; |
6e33e30d | 534 | unsigned long last_survey; |
1da177e4 LT |
535 | |
536 | int station_was_associated, station_is_associated; | |
537 | int fast_scan; | |
4d791aad | 538 | |
1da177e4 LT |
539 | struct bss_info { |
540 | int channel; | |
541 | int SSIDsize; | |
542 | int RSSI; | |
543 | int UsingWEP; | |
544 | int preamble; | |
545 | int beacon_period; | |
546 | int BSStype; | |
547 | u8 BSSID[6]; | |
548 | u8 SSID[MAX_SSID_LENGTH]; | |
549 | } BSSinfo[MAX_BSS_ENTRIES]; | |
550 | int BSS_list_entries, current_BSS; | |
4d791aad | 551 | int connect_to_any_BSS; |
1da177e4 LT |
552 | int SSID_size, new_SSID_size; |
553 | u8 CurrentBSSID[6], BSSID[6]; | |
554 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; | |
555 | u64 last_beacon_timestamp; | |
556 | u8 rx_buf[MAX_WIRELESS_BODY]; | |
1da177e4 LT |
557 | }; |
558 | ||
8830cb67 | 559 | static u8 atmel_basic_rates[4] = {0x82, 0x84, 0x0b, 0x16}; |
1da177e4 LT |
560 | |
561 | static const struct { | |
562 | int reg_domain; | |
563 | int min, max; | |
4d791aad | 564 | char *name; |
1da177e4 LT |
565 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
566 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, | |
567 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, | |
568 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, | |
4d791aad | 569 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
1da177e4 LT |
570 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
571 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, | |
572 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; | |
573 | ||
574 | static void build_wpa_mib(struct atmel_private *priv); | |
575 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
4d791aad | 576 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
2f26e8af | 577 | const unsigned char *src, u16 len); |
4d791aad CP |
578 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
579 | u16 src, u16 len); | |
1da177e4 LT |
580 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
581 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); | |
582 | static int atmel_lock_mac(struct atmel_private *priv); | |
583 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); | |
584 | static void atmel_command_irq(struct atmel_private *priv); | |
585 | static int atmel_validate_channel(struct atmel_private *priv, int channel); | |
4d791aad | 586 | static void atmel_management_frame(struct atmel_private *priv, |
2c706002 | 587 | struct ieee80211_hdr *header, |
1da177e4 LT |
588 | u16 frame_len, u8 rssi); |
589 | static void atmel_management_timer(u_long a); | |
4d791aad CP |
590 | static void atmel_send_command(struct atmel_private *priv, int command, |
591 | void *cmd, int cmd_size); | |
592 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
593 | void *cmd, int cmd_size); | |
594 | static void atmel_transmit_management_frame(struct atmel_private *priv, | |
2c706002 | 595 | struct ieee80211_hdr *header, |
1da177e4 LT |
596 | u8 *body, int body_len); |
597 | ||
598 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); | |
4d791aad CP |
599 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
600 | u8 data); | |
601 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, | |
602 | u16 data); | |
603 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, | |
604 | u8 *data, int data_len); | |
605 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, | |
606 | u8 *data, int data_len); | |
1da177e4 LT |
607 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
608 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); | |
609 | static void atmel_smooth_qual(struct atmel_private *priv); | |
610 | static void atmel_writeAR(struct net_device *dev, u16 data); | |
611 | static int probe_atmel_card(struct net_device *dev); | |
5c877fe5 | 612 | static int reset_atmel_card(struct net_device *dev); |
1da177e4 LT |
613 | static void atmel_enter_state(struct atmel_private *priv, int new_state); |
614 | int atmel_open (struct net_device *dev); | |
615 | ||
616 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) | |
617 | { | |
618 | return priv->host_info_base + offset; | |
619 | } | |
620 | ||
621 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) | |
622 | { | |
623 | return priv->host_info.command_pos + offset; | |
624 | } | |
625 | ||
4d791aad | 626 | static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
627 | { |
628 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; | |
629 | } | |
630 | ||
4d791aad | 631 | static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
632 | { |
633 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; | |
634 | } | |
635 | ||
636 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) | |
637 | { | |
638 | return inb(dev->base_addr + offset); | |
639 | } | |
640 | ||
641 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) | |
642 | { | |
643 | outb(data, dev->base_addr + offset); | |
644 | } | |
645 | ||
646 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) | |
647 | { | |
648 | return inw(dev->base_addr + offset); | |
649 | } | |
650 | ||
651 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) | |
652 | { | |
653 | outw(data, dev->base_addr + offset); | |
654 | } | |
655 | ||
656 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) | |
657 | { | |
4d791aad | 658 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
659 | return atmel_read8(priv->dev, DR); |
660 | } | |
661 | ||
662 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) | |
663 | { | |
4d791aad | 664 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
665 | atmel_write8(priv->dev, DR, data); |
666 | } | |
667 | ||
668 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) | |
669 | { | |
4d791aad | 670 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
671 | return atmel_read16(priv->dev, DR); |
672 | } | |
673 | ||
674 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) | |
675 | { | |
4d791aad | 676 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
677 | atmel_write16(priv->dev, DR, data); |
678 | } | |
679 | ||
680 | static const struct iw_handler_def atmel_handler_def; | |
681 | ||
682 | static void tx_done_irq(struct atmel_private *priv) | |
683 | { | |
684 | int i; | |
685 | ||
4d791aad | 686 | for (i = 0; |
1da177e4 LT |
687 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
688 | i < priv->host_info.tx_desc_count; | |
689 | i++) { | |
1da177e4 LT |
690 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
691 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); | |
692 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); | |
693 | ||
694 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); | |
695 | ||
696 | priv->tx_free_mem += msdu_size; | |
697 | priv->tx_desc_free++; | |
698 | ||
699 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) | |
700 | priv->tx_buff_head = 0; | |
701 | else | |
702 | priv->tx_buff_head += msdu_size; | |
4d791aad | 703 | |
1da177e4 | 704 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
4d791aad | 705 | priv->tx_desc_head++ ; |
1da177e4 LT |
706 | else |
707 | priv->tx_desc_head = 0; | |
4d791aad | 708 | |
1da177e4 LT |
709 | if (type == TX_PACKET_TYPE_DATA) { |
710 | if (status == TX_STATUS_SUCCESS) | |
736bc924 | 711 | priv->dev->stats.tx_packets++; |
4d791aad | 712 | else |
736bc924 | 713 | priv->dev->stats.tx_errors++; |
1da177e4 LT |
714 | netif_wake_queue(priv->dev); |
715 | } | |
716 | } | |
717 | } | |
718 | ||
719 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) | |
720 | { | |
721 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; | |
722 | ||
4d791aad | 723 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
1da177e4 | 724 | return 0; |
4d791aad | 725 | |
1da177e4 LT |
726 | if (bottom_free >= len) |
727 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; | |
4d791aad | 728 | |
1da177e4 LT |
729 | if (priv->tx_free_mem - bottom_free >= len) { |
730 | priv->tx_buff_tail = 0; | |
731 | return priv->host_info.tx_buff_pos; | |
732 | } | |
4d791aad | 733 | |
1da177e4 LT |
734 | return 0; |
735 | } | |
736 | ||
4d791aad CP |
737 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
738 | u16 len, u16 buff, u8 type) | |
1da177e4 LT |
739 | { |
740 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); | |
741 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); | |
742 | if (!priv->use_wpa) | |
743 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); | |
744 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); | |
745 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); | |
746 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); | |
747 | if (priv->use_wpa) { | |
748 | int cipher_type, cipher_length; | |
749 | if (is_bcast) { | |
750 | cipher_type = priv->group_cipher_suite; | |
4d791aad CP |
751 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
752 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
753 | cipher_length = 8; |
754 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
755 | cipher_length = 12; | |
756 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || | |
757 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { | |
758 | cipher_type = priv->pairwise_cipher_suite; | |
759 | cipher_length = 8; | |
760 | } else { | |
761 | cipher_type = CIPHER_SUITE_NONE; | |
762 | cipher_length = 0; | |
763 | } | |
764 | } else { | |
765 | cipher_type = priv->pairwise_cipher_suite; | |
4d791aad CP |
766 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
767 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
768 | cipher_length = 8; |
769 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
770 | cipher_length = 12; | |
771 | else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 || | |
772 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { | |
773 | cipher_type = priv->group_cipher_suite; | |
774 | cipher_length = 8; | |
775 | } else { | |
776 | cipher_type = CIPHER_SUITE_NONE; | |
777 | cipher_length = 0; | |
778 | } | |
779 | } | |
4d791aad | 780 | |
1da177e4 | 781 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail), |
4d791aad | 782 | cipher_type); |
1da177e4 LT |
783 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
784 | cipher_length); | |
785 | } | |
786 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); | |
787 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); | |
788 | if (priv->tx_desc_previous != priv->tx_desc_tail) | |
789 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); | |
790 | priv->tx_desc_previous = priv->tx_desc_tail; | |
4d791aad | 791 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
1da177e4 LT |
792 | priv->tx_desc_tail++; |
793 | else | |
794 | priv->tx_desc_tail = 0; | |
795 | priv->tx_desc_free--; | |
796 | priv->tx_free_mem -= len; | |
1da177e4 LT |
797 | } |
798 | ||
d0cf9c0d | 799 | static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 800 | { |
00a5ebf8 | 801 | static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
1da177e4 | 802 | struct atmel_private *priv = netdev_priv(dev); |
2c706002 | 803 | struct ieee80211_hdr header; |
1da177e4 LT |
804 | unsigned long flags; |
805 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; | |
4d791aad CP |
806 | |
807 | if (priv->card && priv->present_callback && | |
1da177e4 | 808 | !(*priv->present_callback)(priv->card)) { |
736bc924 | 809 | dev->stats.tx_errors++; |
1da177e4 | 810 | dev_kfree_skb(skb); |
6ed10654 | 811 | return NETDEV_TX_OK; |
1da177e4 | 812 | } |
4d791aad | 813 | |
1da177e4 | 814 | if (priv->station_state != STATION_STATE_READY) { |
736bc924 | 815 | dev->stats.tx_errors++; |
1da177e4 | 816 | dev_kfree_skb(skb); |
6ed10654 | 817 | return NETDEV_TX_OK; |
1da177e4 | 818 | } |
4d791aad | 819 | |
1da177e4 | 820 | /* first ensure the timer func cannot run */ |
4d791aad | 821 | spin_lock_bh(&priv->timerlock); |
1da177e4 | 822 | /* then stop the hardware ISR */ |
4d791aad | 823 | spin_lock_irqsave(&priv->irqlock, flags); |
1da177e4 | 824 | /* nb doing the above in the opposite order will deadlock */ |
4d791aad | 825 | |
1da177e4 | 826 | /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the |
4d791aad CP |
827 | 12 first bytes (containing DA/SA) and put them in the appropriate |
828 | fields of the Wireless Header. Thus the packet length is then the | |
829 | initial + 18 (+30-12) */ | |
830 | ||
1da177e4 | 831 | if (!(buff = find_tx_buff(priv, len + 18))) { |
736bc924 | 832 | dev->stats.tx_dropped++; |
1da177e4 LT |
833 | spin_unlock_irqrestore(&priv->irqlock, flags); |
834 | spin_unlock_bh(&priv->timerlock); | |
835 | netif_stop_queue(dev); | |
5b548140 | 836 | return NETDEV_TX_BUSY; |
1da177e4 | 837 | } |
4d791aad | 838 | |
b453872c | 839 | frame_ctl = IEEE80211_FTYPE_DATA; |
1da177e4 | 840 | header.duration_id = 0; |
2c706002 | 841 | header.seq_ctrl = 0; |
1da177e4 | 842 | if (priv->wep_is_on) |
f13baae4 | 843 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
1da177e4 | 844 | if (priv->operating_mode == IW_MODE_ADHOC) { |
d458cdf7 JP |
845 | skb_copy_from_linear_data(skb, &header.addr1, ETH_ALEN); |
846 | memcpy(&header.addr2, dev->dev_addr, ETH_ALEN); | |
847 | memcpy(&header.addr3, priv->BSSID, ETH_ALEN); | |
1da177e4 | 848 | } else { |
b453872c | 849 | frame_ctl |= IEEE80211_FCTL_TODS; |
d458cdf7 JP |
850 | memcpy(&header.addr1, priv->CurrentBSSID, ETH_ALEN); |
851 | memcpy(&header.addr2, dev->dev_addr, ETH_ALEN); | |
852 | skb_copy_from_linear_data(skb, &header.addr3, ETH_ALEN); | |
1da177e4 | 853 | } |
4d791aad | 854 | |
1da177e4 | 855 | if (priv->use_wpa) |
d458cdf7 | 856 | memcpy(&header.addr4, SNAP_RFC1024, ETH_ALEN); |
1da177e4 | 857 | |
2c706002 | 858 | header.frame_control = cpu_to_le16(frame_ctl); |
1da177e4 LT |
859 | /* Copy the wireless header into the card */ |
860 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); | |
861 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ | |
862 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); | |
863 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; | |
4d791aad | 864 | |
1da177e4 LT |
865 | /* low bit of first byte of destination tells us if broadcast */ |
866 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); | |
736bc924 | 867 | dev->stats.tx_bytes += len; |
4d791aad | 868 | |
1da177e4 LT |
869 | spin_unlock_irqrestore(&priv->irqlock, flags); |
870 | spin_unlock_bh(&priv->timerlock); | |
871 | dev_kfree_skb(skb); | |
4d791aad | 872 | |
6ed10654 | 873 | return NETDEV_TX_OK; |
1da177e4 LT |
874 | } |
875 | ||
4d791aad | 876 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
2c706002 | 877 | struct ieee80211_hdr *header, |
1da177e4 LT |
878 | u8 *body, int body_len) |
879 | { | |
880 | u16 buff; | |
4d791aad CP |
881 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
882 | ||
883 | if (!(buff = find_tx_buff(priv, len))) | |
1da177e4 LT |
884 | return; |
885 | ||
886 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); | |
887 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); | |
888 | priv->tx_buff_tail += len; | |
889 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); | |
890 | } | |
4d791aad CP |
891 | |
892 | static void fast_rx_path(struct atmel_private *priv, | |
2c706002 | 893 | struct ieee80211_hdr *header, |
1da177e4 LT |
894 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
895 | { | |
896 | /* fast path: unfragmented packet copy directly into skbuf */ | |
4d791aad CP |
897 | u8 mac4[6]; |
898 | struct sk_buff *skb; | |
1da177e4 | 899 | unsigned char *skbp; |
4d791aad | 900 | |
1da177e4 LT |
901 | /* get the final, mac 4 header field, this tells us encapsulation */ |
902 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); | |
903 | msdu_size -= 6; | |
4d791aad | 904 | |
1da177e4 LT |
905 | if (priv->do_rx_crc) { |
906 | crc = crc32_le(crc, mac4, 6); | |
907 | msdu_size -= 4; | |
908 | } | |
4d791aad | 909 | |
1da177e4 | 910 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
736bc924 | 911 | priv->dev->stats.rx_dropped++; |
1da177e4 LT |
912 | return; |
913 | } | |
914 | ||
915 | skb_reserve(skb, 2); | |
916 | skbp = skb_put(skb, msdu_size + 12); | |
917 | atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size); | |
4d791aad | 918 | |
1da177e4 LT |
919 | if (priv->do_rx_crc) { |
920 | u32 netcrc; | |
921 | crc = crc32_le(crc, skbp + 12, msdu_size); | |
922 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); | |
923 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 924 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
925 | dev_kfree_skb(skb); |
926 | return; | |
927 | } | |
928 | } | |
4d791aad | 929 | |
d458cdf7 | 930 | memcpy(skbp, header->addr1, ETH_ALEN); /* destination address */ |
2c706002 | 931 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
d458cdf7 | 932 | memcpy(&skbp[ETH_ALEN], header->addr3, ETH_ALEN); |
1da177e4 | 933 | else |
d458cdf7 | 934 | memcpy(&skbp[ETH_ALEN], header->addr2, ETH_ALEN); /* source address */ |
4d791aad | 935 | |
1da177e4 | 936 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 937 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 | 938 | netif_rx(skb); |
736bc924 PZ |
939 | priv->dev->stats.rx_bytes += 12 + msdu_size; |
940 | priv->dev->stats.rx_packets++; | |
1da177e4 LT |
941 | } |
942 | ||
943 | /* Test to see if the packet in card memory at packet_loc has a valid CRC | |
4d791aad CP |
944 | It doesn't matter that this is slow: it is only used to proble the first few |
945 | packets. */ | |
1da177e4 LT |
946 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
947 | { | |
948 | int i = msdu_size - 4; | |
949 | u32 netcrc, crc = 0xffffffff; | |
950 | ||
951 | if (msdu_size < 4) | |
952 | return 0; | |
953 | ||
954 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); | |
4d791aad | 955 | |
1da177e4 LT |
956 | atmel_writeAR(priv->dev, packet_loc); |
957 | while (i--) { | |
958 | u8 octet = atmel_read8(priv->dev, DR); | |
959 | crc = crc32_le(crc, &octet, 1); | |
960 | } | |
961 | ||
962 | return (crc ^ 0xffffffff) == netcrc; | |
963 | } | |
964 | ||
4d791aad | 965 | static void frag_rx_path(struct atmel_private *priv, |
2c706002 | 966 | struct ieee80211_hdr *header, |
4d791aad CP |
967 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, |
968 | u8 frag_no, int more_frags) | |
1da177e4 | 969 | { |
d458cdf7 JP |
970 | u8 mac4[ETH_ALEN]; |
971 | u8 source[ETH_ALEN]; | |
1da177e4 LT |
972 | struct sk_buff *skb; |
973 | ||
2c706002 | 974 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
d458cdf7 | 975 | memcpy(source, header->addr3, ETH_ALEN); |
1da177e4 | 976 | else |
d458cdf7 | 977 | memcpy(source, header->addr2, ETH_ALEN); |
4d791aad | 978 | |
1da177e4 | 979 | rx_packet_loc += 24; /* skip header */ |
4d791aad | 980 | |
1da177e4 LT |
981 | if (priv->do_rx_crc) |
982 | msdu_size -= 4; | |
983 | ||
984 | if (frag_no == 0) { /* first fragment */ | |
d458cdf7 JP |
985 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, ETH_ALEN); |
986 | msdu_size -= ETH_ALEN; | |
987 | rx_packet_loc += ETH_ALEN; | |
1da177e4 | 988 | |
4d791aad | 989 | if (priv->do_rx_crc) |
1da177e4 | 990 | crc = crc32_le(crc, mac4, 6); |
4d791aad | 991 | |
1da177e4 LT |
992 | priv->frag_seq = seq_no; |
993 | priv->frag_no = 1; | |
994 | priv->frag_len = msdu_size; | |
d458cdf7 JP |
995 | memcpy(priv->frag_source, source, ETH_ALEN); |
996 | memcpy(&priv->rx_buf[ETH_ALEN], source, ETH_ALEN); | |
997 | memcpy(priv->rx_buf, header->addr1, ETH_ALEN); | |
4d791aad | 998 | |
1da177e4 LT |
999 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
1000 | ||
1001 | if (priv->do_rx_crc) { | |
1002 | u32 netcrc; | |
1003 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); | |
1004 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1005 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 1006 | priv->dev->stats.rx_crc_errors++; |
93803b33 | 1007 | eth_broadcast_addr(priv->frag_source); |
1da177e4 LT |
1008 | } |
1009 | } | |
4d791aad | 1010 | |
1da177e4 LT |
1011 | } else if (priv->frag_no == frag_no && |
1012 | priv->frag_seq == seq_no && | |
d458cdf7 | 1013 | memcmp(priv->frag_source, source, ETH_ALEN) == 0) { |
4d791aad CP |
1014 | |
1015 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1016 | rx_packet_loc, msdu_size); |
1017 | if (priv->do_rx_crc) { | |
1018 | u32 netcrc; | |
4d791aad CP |
1019 | crc = crc32_le(crc, |
1020 | &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1021 | msdu_size); |
1022 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1023 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 1024 | priv->dev->stats.rx_crc_errors++; |
93803b33 | 1025 | eth_broadcast_addr(priv->frag_source); |
1da177e4 LT |
1026 | more_frags = 1; /* don't send broken assembly */ |
1027 | } | |
1028 | } | |
4d791aad | 1029 | |
1da177e4 LT |
1030 | priv->frag_len += msdu_size; |
1031 | priv->frag_no++; | |
1032 | ||
1033 | if (!more_frags) { /* last one */ | |
93803b33 | 1034 | eth_broadcast_addr(priv->frag_source); |
1da177e4 | 1035 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { |
736bc924 | 1036 | priv->dev->stats.rx_dropped++; |
1da177e4 LT |
1037 | } else { |
1038 | skb_reserve(skb, 2); | |
4d791aad | 1039 | memcpy(skb_put(skb, priv->frag_len + 12), |
1da177e4 LT |
1040 | priv->rx_buf, |
1041 | priv->frag_len + 12); | |
1da177e4 | 1042 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 1043 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 | 1044 | netif_rx(skb); |
736bc924 PZ |
1045 | priv->dev->stats.rx_bytes += priv->frag_len + 12; |
1046 | priv->dev->stats.rx_packets++; | |
1da177e4 LT |
1047 | } |
1048 | } | |
1da177e4 LT |
1049 | } else |
1050 | priv->wstats.discard.fragment++; | |
1051 | } | |
4d791aad | 1052 | |
1da177e4 LT |
1053 | static void rx_done_irq(struct atmel_private *priv) |
1054 | { | |
1055 | int i; | |
2c706002 | 1056 | struct ieee80211_hdr header; |
4d791aad CP |
1057 | |
1058 | for (i = 0; | |
1da177e4 LT |
1059 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
1060 | i < priv->host_info.rx_desc_count; | |
1061 | i++) { | |
4d791aad | 1062 | |
1da177e4 LT |
1063 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
1064 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); | |
1065 | u32 crc = 0xffffffff; | |
4d791aad | 1066 | |
1da177e4 LT |
1067 | if (status != RX_STATUS_SUCCESS) { |
1068 | if (status == 0xc1) /* determined by experiment */ | |
1069 | priv->wstats.discard.nwid++; | |
1070 | else | |
736bc924 | 1071 | priv->dev->stats.rx_errors++; |
1da177e4 LT |
1072 | goto next; |
1073 | } | |
1074 | ||
1075 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); | |
1076 | rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head)); | |
4d791aad | 1077 | |
1da177e4 | 1078 | if (msdu_size < 30) { |
736bc924 | 1079 | priv->dev->stats.rx_errors++; |
1da177e4 LT |
1080 | goto next; |
1081 | } | |
4d791aad | 1082 | |
2c706002 | 1083 | /* Get header as far as end of seq_ctrl */ |
1da177e4 | 1084 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); |
2c706002 JB |
1085 | frame_ctl = le16_to_cpu(header.frame_control); |
1086 | seq_control = le16_to_cpu(header.seq_ctrl); | |
1da177e4 | 1087 | |
4d791aad CP |
1088 | /* probe for CRC use here if needed once five packets have |
1089 | arrived with the same crc status, we assume we know what's | |
1090 | happening and stop probing */ | |
1da177e4 | 1091 | if (priv->probe_crc) { |
f13baae4 | 1092 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
1da177e4 LT |
1093 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
1094 | } else { | |
1095 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); | |
1096 | } | |
1097 | if (priv->do_rx_crc) { | |
1098 | if (priv->crc_ok_cnt++ > 5) | |
1099 | priv->probe_crc = 0; | |
1100 | } else { | |
1101 | if (priv->crc_ko_cnt++ > 5) | |
1102 | priv->probe_crc = 0; | |
1103 | } | |
1104 | } | |
4d791aad | 1105 | |
1da177e4 | 1106 | /* don't CRC header when WEP in use */ |
f13baae4 | 1107 | if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) { |
1da177e4 LT |
1108 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
1109 | } | |
1110 | msdu_size -= 24; /* header */ | |
1111 | ||
4d791aad | 1112 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
b453872c JG |
1113 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
1114 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; | |
1115 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; | |
4d791aad CP |
1116 | |
1117 | if (!more_fragments && packet_fragment_no == 0) { | |
1da177e4 LT |
1118 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
1119 | } else { | |
1120 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, | |
1121 | packet_sequence_no, packet_fragment_no, more_fragments); | |
1122 | } | |
1123 | } | |
4d791aad | 1124 | |
b453872c | 1125 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
1da177e4 LT |
1126 | /* copy rest of packet into buffer */ |
1127 | atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); | |
4d791aad | 1128 | |
1da177e4 | 1129 | /* we use the same buffer for frag reassembly and control packets */ |
93803b33 | 1130 | eth_broadcast_addr(priv->frag_source); |
4d791aad | 1131 | |
1da177e4 LT |
1132 | if (priv->do_rx_crc) { |
1133 | /* last 4 octets is crc */ | |
1134 | msdu_size -= 4; | |
1135 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); | |
1136 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { | |
736bc924 | 1137 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
1138 | goto next; |
1139 | } | |
1140 | } | |
1141 | ||
1142 | atmel_management_frame(priv, &header, msdu_size, | |
1143 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head))); | |
4d791aad | 1144 | } |
1da177e4 | 1145 | |
4d791aad | 1146 | next: |
1da177e4 | 1147 | /* release descriptor */ |
4d791aad CP |
1148 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
1149 | ||
1da177e4 | 1150 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
4d791aad | 1151 | priv->rx_desc_head++; |
1da177e4 LT |
1152 | else |
1153 | priv->rx_desc_head = 0; | |
1154 | } | |
4d791aad | 1155 | } |
1da177e4 | 1156 | |
7d12e780 | 1157 | static irqreturn_t service_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1158 | { |
1159 | struct net_device *dev = (struct net_device *) dev_id; | |
1160 | struct atmel_private *priv = netdev_priv(dev); | |
1161 | u8 isr; | |
1162 | int i = -1; | |
3370a895 | 1163 | static const u8 irq_order[] = { |
1da177e4 LT |
1164 | ISR_OUT_OF_RANGE, |
1165 | ISR_RxCOMPLETE, | |
1166 | ISR_TxCOMPLETE, | |
1167 | ISR_RxFRAMELOST, | |
1168 | ISR_FATAL_ERROR, | |
1169 | ISR_COMMAND_COMPLETE, | |
1170 | ISR_IBSS_MERGE, | |
1171 | ISR_GENERIC_IRQ | |
1172 | }; | |
1da177e4 | 1173 | |
4d791aad | 1174 | if (priv->card && priv->present_callback && |
1da177e4 LT |
1175 | !(*priv->present_callback)(priv->card)) |
1176 | return IRQ_HANDLED; | |
1177 | ||
1178 | /* In this state upper-level code assumes it can mess with | |
1179 | the card unhampered by interrupts which may change register state. | |
1180 | Note that even though the card shouldn't generate interrupts | |
4d791aad | 1181 | the inturrupt line may be shared. This allows card setup |
1da177e4 LT |
1182 | to go on without disabling interrupts for a long time. */ |
1183 | if (priv->station_state == STATION_STATE_DOWN) | |
1184 | return IRQ_NONE; | |
4d791aad | 1185 | |
1da177e4 LT |
1186 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
1187 | ||
1188 | while (1) { | |
1189 | if (!atmel_lock_mac(priv)) { | |
1190 | /* failed to contact card */ | |
1191 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1192 | return IRQ_HANDLED; | |
1193 | } | |
4d791aad | 1194 | |
1da177e4 LT |
1195 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1196 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1197 | |
1da177e4 LT |
1198 | if (!isr) { |
1199 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ | |
1200 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; | |
1201 | } | |
4d791aad | 1202 | |
1da177e4 | 1203 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
4d791aad | 1204 | |
b4341135 | 1205 | for (i = 0; i < ARRAY_SIZE(irq_order); i++) |
1da177e4 LT |
1206 | if (isr & irq_order[i]) |
1207 | break; | |
4d791aad | 1208 | |
1da177e4 LT |
1209 | if (!atmel_lock_mac(priv)) { |
1210 | /* failed to contact card */ | |
1211 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1212 | return IRQ_HANDLED; | |
1213 | } | |
4d791aad | 1214 | |
1da177e4 LT |
1215 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1216 | isr ^= irq_order[i]; | |
1217 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); | |
1218 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1219 | |
1da177e4 | 1220 | switch (irq_order[i]) { |
4d791aad CP |
1221 | |
1222 | case ISR_OUT_OF_RANGE: | |
1223 | if (priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
1224 | priv->station_state == STATION_STATE_READY) { |
1225 | priv->station_is_associated = 0; | |
1226 | atmel_scan(priv, 1); | |
1227 | } | |
1228 | break; | |
1229 | ||
1230 | case ISR_RxFRAMELOST: | |
1231 | priv->wstats.discard.misc++; | |
1232 | /* fall through */ | |
1233 | case ISR_RxCOMPLETE: | |
4d791aad | 1234 | rx_done_irq(priv); |
1da177e4 | 1235 | break; |
4d791aad | 1236 | |
1da177e4 | 1237 | case ISR_TxCOMPLETE: |
4d791aad | 1238 | tx_done_irq(priv); |
1da177e4 | 1239 | break; |
4d791aad | 1240 | |
1da177e4 LT |
1241 | case ISR_FATAL_ERROR: |
1242 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); | |
1243 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
1244 | break; | |
4d791aad CP |
1245 | |
1246 | case ISR_COMMAND_COMPLETE: | |
1da177e4 LT |
1247 | atmel_command_irq(priv); |
1248 | break; | |
1249 | ||
1250 | case ISR_IBSS_MERGE: | |
4d791aad | 1251 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
1da177e4 LT |
1252 | priv->CurrentBSSID, 6); |
1253 | /* The WPA stuff cares about the current AP address */ | |
1254 | if (priv->use_wpa) | |
1255 | build_wpa_mib(priv); | |
1256 | break; | |
1257 | case ISR_GENERIC_IRQ: | |
1258 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); | |
1259 | break; | |
1260 | } | |
4d791aad | 1261 | } |
1da177e4 LT |
1262 | } |
1263 | ||
4d791aad | 1264 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
1da177e4 LT |
1265 | { |
1266 | struct atmel_private *priv = netdev_priv(dev); | |
1267 | ||
4d791aad | 1268 | /* update the link quality here in case we are seeing no beacons |
1da177e4 LT |
1269 | at all to drive the process */ |
1270 | atmel_smooth_qual(priv); | |
4d791aad | 1271 | |
1da177e4 LT |
1272 | priv->wstats.status = priv->station_state; |
1273 | ||
1274 | if (priv->operating_mode == IW_MODE_INFRA) { | |
1275 | if (priv->station_state != STATION_STATE_READY) { | |
1276 | priv->wstats.qual.qual = 0; | |
1277 | priv->wstats.qual.level = 0; | |
1278 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID | |
1279 | | IW_QUAL_LEVEL_INVALID); | |
1280 | } | |
1281 | priv->wstats.qual.noise = 0; | |
1282 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; | |
1283 | } else { | |
1284 | /* Quality levels cannot be determined in ad-hoc mode, | |
1285 | because we can 'hear' more that one remote station. */ | |
1286 | priv->wstats.qual.qual = 0; | |
1287 | priv->wstats.qual.level = 0; | |
1288 | priv->wstats.qual.noise = 0; | |
1289 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID | |
1290 | | IW_QUAL_LEVEL_INVALID | |
1291 | | IW_QUAL_NOISE_INVALID; | |
1292 | priv->wstats.miss.beacon = 0; | |
1293 | } | |
4d791aad CP |
1294 | |
1295 | return &priv->wstats; | |
1da177e4 LT |
1296 | } |
1297 | ||
1298 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) | |
1299 | { | |
8830cb67 JD |
1300 | if ((new_mtu < 68) || (new_mtu > 2312)) |
1301 | return -EINVAL; | |
1302 | dev->mtu = new_mtu; | |
1303 | return 0; | |
1da177e4 LT |
1304 | } |
1305 | ||
1306 | static int atmel_set_mac_address(struct net_device *dev, void *p) | |
1307 | { | |
1308 | struct sockaddr *addr = p; | |
4d791aad | 1309 | |
8830cb67 | 1310 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
1da177e4 LT |
1311 | return atmel_open(dev); |
1312 | } | |
1313 | ||
1314 | EXPORT_SYMBOL(atmel_open); | |
1315 | ||
4d791aad | 1316 | int atmel_open(struct net_device *dev) |
1da177e4 LT |
1317 | { |
1318 | struct atmel_private *priv = netdev_priv(dev); | |
3c34a5d8 | 1319 | int i, channel, err; |
1da177e4 LT |
1320 | |
1321 | /* any scheduled timer is no longer needed and might screw things up.. */ | |
1322 | del_timer_sync(&priv->management_timer); | |
4d791aad | 1323 | |
1da177e4 LT |
1324 | /* Interrupts will not touch the card once in this state... */ |
1325 | priv->station_state = STATION_STATE_DOWN; | |
1326 | ||
1327 | if (priv->new_SSID_size) { | |
1328 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); | |
1329 | priv->SSID_size = priv->new_SSID_size; | |
1330 | priv->new_SSID_size = 0; | |
1331 | } | |
1332 | priv->BSS_list_entries = 0; | |
1333 | ||
1334 | priv->AuthenticationRequestRetryCnt = 0; | |
1335 | priv->AssociationRequestRetryCnt = 0; | |
1336 | priv->ReAssociationRequestRetryCnt = 0; | |
1337 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
1338 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; | |
1339 | ||
1340 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
1341 | priv->station_is_associated = 0; | |
1342 | ||
3c34a5d8 DW |
1343 | err = reset_atmel_card(dev); |
1344 | if (err) | |
1345 | return err; | |
1da177e4 LT |
1346 | |
1347 | if (priv->config_reg_domain) { | |
1348 | priv->reg_domain = priv->config_reg_domain; | |
1349 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); | |
1350 | } else { | |
1351 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); | |
b4341135 | 1352 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1353 | if (priv->reg_domain == channel_table[i].reg_domain) |
1354 | break; | |
b4341135 | 1355 | if (i == ARRAY_SIZE(channel_table)) { |
1da177e4 LT |
1356 | priv->reg_domain = REG_DOMAIN_MKK1; |
1357 | printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name); | |
4d791aad | 1358 | } |
1da177e4 | 1359 | } |
4d791aad | 1360 | |
1da177e4 LT |
1361 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
1362 | priv->channel = channel; | |
1363 | ||
4d791aad CP |
1364 | /* this moves station_state on.... */ |
1365 | atmel_scan(priv, 1); | |
1da177e4 LT |
1366 | |
1367 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ | |
1368 | return 0; | |
1369 | } | |
1370 | ||
4d791aad | 1371 | static int atmel_close(struct net_device *dev) |
1da177e4 LT |
1372 | { |
1373 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1374 | |
9a6301c1 DW |
1375 | /* Send event to userspace that we are disassociating */ |
1376 | if (priv->station_state == STATION_STATE_READY) { | |
1377 | union iwreq_data wrqu; | |
1378 | ||
1379 | wrqu.data.length = 0; | |
1380 | wrqu.data.flags = 0; | |
1381 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
93803b33 | 1382 | eth_zero_addr(wrqu.ap_addr.sa_data); |
9a6301c1 DW |
1383 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
1384 | } | |
1385 | ||
1da177e4 | 1386 | atmel_enter_state(priv, STATION_STATE_DOWN); |
4d791aad CP |
1387 | |
1388 | if (priv->bus_type == BUS_TYPE_PCCARD) | |
1da177e4 LT |
1389 | atmel_write16(dev, GCR, 0x0060); |
1390 | atmel_write16(dev, GCR, 0x0040); | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | static int atmel_validate_channel(struct atmel_private *priv, int channel) | |
1395 | { | |
1396 | /* check that channel is OK, if so return zero, | |
1397 | else return suitable default channel */ | |
1398 | int i; | |
1399 | ||
b4341135 | 1400 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1401 | if (priv->reg_domain == channel_table[i].reg_domain) { |
1402 | if (channel >= channel_table[i].min && | |
1403 | channel <= channel_table[i].max) | |
1404 | return 0; | |
1405 | else | |
1406 | return channel_table[i].min; | |
1407 | } | |
1408 | return 0; | |
1409 | } | |
1410 | ||
4c4df9b9 | 1411 | static int atmel_proc_show(struct seq_file *m, void *v) |
1da177e4 | 1412 | { |
4c4df9b9 | 1413 | struct atmel_private *priv = m->private; |
1da177e4 | 1414 | int i; |
1da177e4 | 1415 | char *s, *r, *c; |
4d791aad | 1416 | |
4c4df9b9 | 1417 | seq_printf(m, "Driver version:\t\t%d.%d\n", DRIVER_MAJOR, DRIVER_MINOR); |
4d791aad | 1418 | |
1da177e4 | 1419 | if (priv->station_state != STATION_STATE_DOWN) { |
4c4df9b9 DH |
1420 | seq_printf(m, |
1421 | "Firmware version:\t%d.%d build %d\n" | |
1422 | "Firmware location:\t", | |
1423 | priv->host_info.major_version, | |
1424 | priv->host_info.minor_version, | |
1425 | priv->host_info.build_version); | |
4d791aad CP |
1426 | |
1427 | if (priv->card_type != CARD_TYPE_EEPROM) | |
4c4df9b9 | 1428 | seq_puts(m, "on card\n"); |
4d791aad | 1429 | else if (priv->firmware) |
4c4df9b9 | 1430 | seq_printf(m, "%s loaded by host\n", priv->firmware_id); |
1da177e4 | 1431 | else |
4c4df9b9 | 1432 | seq_printf(m, "%s loaded by hotplug\n", priv->firmware_id); |
4d791aad CP |
1433 | |
1434 | switch (priv->card_type) { | |
8830cb67 JD |
1435 | case CARD_TYPE_PARALLEL_FLASH: |
1436 | c = "Parallel flash"; | |
1437 | break; | |
1438 | case CARD_TYPE_SPI_FLASH: | |
1439 | c = "SPI flash\n"; | |
1440 | break; | |
1441 | case CARD_TYPE_EEPROM: | |
1442 | c = "EEPROM"; | |
1443 | break; | |
1444 | default: | |
1445 | c = "<unknown>"; | |
1da177e4 LT |
1446 | } |
1447 | ||
1da177e4 | 1448 | r = "<unknown>"; |
b4341135 | 1449 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1450 | if (priv->reg_domain == channel_table[i].reg_domain) |
1451 | r = channel_table[i].name; | |
4d791aad | 1452 | |
4c4df9b9 DH |
1453 | seq_printf(m, "MAC memory type:\t%s\n", c); |
1454 | seq_printf(m, "Regulatory domain:\t%s\n", r); | |
1455 | seq_printf(m, "Host CRC checking:\t%s\n", | |
1456 | priv->do_rx_crc ? "On" : "Off"); | |
1457 | seq_printf(m, "WPA-capable firmware:\t%s\n", | |
1458 | priv->use_wpa ? "Yes" : "No"); | |
1da177e4 | 1459 | } |
4d791aad | 1460 | |
8830cb67 JD |
1461 | switch (priv->station_state) { |
1462 | case STATION_STATE_SCANNING: | |
1463 | s = "Scanning"; | |
1464 | break; | |
1465 | case STATION_STATE_JOINNING: | |
1466 | s = "Joining"; | |
1467 | break; | |
1468 | case STATION_STATE_AUTHENTICATING: | |
1469 | s = "Authenticating"; | |
1470 | break; | |
1471 | case STATION_STATE_ASSOCIATING: | |
1472 | s = "Associating"; | |
1473 | break; | |
1474 | case STATION_STATE_READY: | |
1475 | s = "Ready"; | |
1476 | break; | |
1477 | case STATION_STATE_REASSOCIATING: | |
1478 | s = "Reassociating"; | |
1479 | break; | |
1480 | case STATION_STATE_MGMT_ERROR: | |
1481 | s = "Management error"; | |
1482 | break; | |
1483 | case STATION_STATE_DOWN: | |
1484 | s = "Down"; | |
1485 | break; | |
1486 | default: | |
1487 | s = "<unknown>"; | |
1da177e4 | 1488 | } |
4d791aad | 1489 | |
4c4df9b9 DH |
1490 | seq_printf(m, "Current state:\t\t%s\n", s); |
1491 | return 0; | |
1da177e4 LT |
1492 | } |
1493 | ||
4c4df9b9 | 1494 | static int atmel_proc_open(struct inode *inode, struct file *file) |
1da177e4 | 1495 | { |
4c4df9b9 | 1496 | return single_open(file, atmel_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
1497 | } |
1498 | ||
4c4df9b9 DH |
1499 | static const struct file_operations atmel_proc_fops = { |
1500 | .open = atmel_proc_open, | |
1501 | .read = seq_read, | |
1502 | .llseek = seq_lseek, | |
bc3041f0 | 1503 | .release = single_release, |
4c4df9b9 DH |
1504 | }; |
1505 | ||
824f1dfd SH |
1506 | static const struct net_device_ops atmel_netdev_ops = { |
1507 | .ndo_open = atmel_open, | |
1508 | .ndo_stop = atmel_close, | |
1509 | .ndo_change_mtu = atmel_change_mtu, | |
1510 | .ndo_set_mac_address = atmel_set_mac_address, | |
1511 | .ndo_start_xmit = start_tx, | |
1512 | .ndo_do_ioctl = atmel_ioctl, | |
824f1dfd SH |
1513 | .ndo_validate_addr = eth_validate_addr, |
1514 | }; | |
1515 | ||
4d791aad CP |
1516 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
1517 | const AtmelFWType fw_type, | |
1518 | struct device *sys_dev, | |
1519 | int (*card_present)(void *), void *card) | |
1da177e4 LT |
1520 | { |
1521 | struct net_device *dev; | |
1522 | struct atmel_private *priv; | |
1523 | int rc; | |
1524 | ||
1525 | /* Create the network device object. */ | |
8830cb67 | 1526 | dev = alloc_etherdev(sizeof(*priv)); |
41de8d4c | 1527 | if (!dev) |
1da177e4 | 1528 | return NULL; |
41de8d4c | 1529 | |
1da177e4 | 1530 | if (dev_alloc_name(dev, dev->name) < 0) { |
4d791aad | 1531 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
1da177e4 LT |
1532 | goto err_out_free; |
1533 | } | |
1534 | ||
1535 | priv = netdev_priv(dev); | |
1536 | priv->dev = dev; | |
1537 | priv->sys_dev = sys_dev; | |
1538 | priv->present_callback = card_present; | |
1539 | priv->card = card; | |
1540 | priv->firmware = NULL; | |
1541 | priv->firmware_id[0] = '\0'; | |
1542 | priv->firmware_type = fw_type; | |
1543 | if (firmware) /* module parameter */ | |
1544 | strcpy(priv->firmware_id, firmware); | |
1545 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; | |
1546 | priv->station_state = STATION_STATE_DOWN; | |
1547 | priv->do_rx_crc = 0; | |
1548 | /* For PCMCIA cards, some chips need CRC, some don't | |
1549 | so we have to probe. */ | |
1550 | if (priv->bus_type == BUS_TYPE_PCCARD) { | |
1551 | priv->probe_crc = 1; | |
1552 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; | |
1553 | } else | |
1554 | priv->probe_crc = 0; | |
1da177e4 LT |
1555 | priv->last_qual = jiffies; |
1556 | priv->last_beacon_timestamp = 0; | |
1557 | memset(priv->frag_source, 0xff, sizeof(priv->frag_source)); | |
93803b33 | 1558 | eth_zero_addr(priv->BSSID); |
1da177e4 LT |
1559 | priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */ |
1560 | priv->station_was_associated = 0; | |
4d791aad | 1561 | |
1da177e4 LT |
1562 | priv->last_survey = jiffies; |
1563 | priv->preamble = LONG_PREAMBLE; | |
1564 | priv->operating_mode = IW_MODE_INFRA; | |
1565 | priv->connect_to_any_BSS = 0; | |
1566 | priv->config_reg_domain = 0; | |
1567 | priv->reg_domain = 0; | |
1568 | priv->tx_rate = 3; | |
1569 | priv->auto_tx_rate = 1; | |
1570 | priv->channel = 4; | |
1571 | priv->power_mode = 0; | |
1572 | priv->SSID[0] = '\0'; | |
1573 | priv->SSID_size = 0; | |
1574 | priv->new_SSID_size = 0; | |
1575 | priv->frag_threshold = 2346; | |
1576 | priv->rts_threshold = 2347; | |
1577 | priv->short_retry = 7; | |
1578 | priv->long_retry = 4; | |
1579 | ||
1580 | priv->wep_is_on = 0; | |
1581 | priv->default_key = 0; | |
1582 | priv->encryption_level = 0; | |
1583 | priv->exclude_unencrypted = 0; | |
1584 | priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1585 | priv->use_wpa = 0; | |
1586 | memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); | |
1587 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); | |
1588 | ||
1589 | priv->default_beacon_period = priv->beacon_period = 100; | |
1590 | priv->listen_interval = 1; | |
1591 | ||
1592 | init_timer(&priv->management_timer); | |
1593 | spin_lock_init(&priv->irqlock); | |
1594 | spin_lock_init(&priv->timerlock); | |
1595 | priv->management_timer.function = atmel_management_timer; | |
1596 | priv->management_timer.data = (unsigned long) dev; | |
4d791aad | 1597 | |
824f1dfd SH |
1598 | dev->netdev_ops = &atmel_netdev_ops; |
1599 | dev->wireless_handlers = &atmel_handler_def; | |
1da177e4 LT |
1600 | dev->irq = irq; |
1601 | dev->base_addr = port; | |
4d791aad | 1602 | |
1da177e4 | 1603 | SET_NETDEV_DEV(dev, sys_dev); |
4d791aad | 1604 | |
1fb9df5d | 1605 | if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { |
4d791aad | 1606 | printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc); |
1da177e4 LT |
1607 | goto err_out_free; |
1608 | } | |
1609 | ||
4d791aad | 1610 | if (!request_region(dev->base_addr, 32, |
b16a228d | 1611 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
1da177e4 LT |
1612 | goto err_out_irq; |
1613 | } | |
4d791aad | 1614 | |
1da177e4 LT |
1615 | if (register_netdev(dev)) |
1616 | goto err_out_res; | |
4d791aad | 1617 | |
8830cb67 | 1618 | if (!probe_atmel_card(dev)) { |
1da177e4 LT |
1619 | unregister_netdev(dev); |
1620 | goto err_out_res; | |
1621 | } | |
4d791aad | 1622 | |
1da177e4 | 1623 | netif_carrier_off(dev); |
4d791aad | 1624 | |
beaee9ca | 1625 | if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv)) |
5bc4c36d | 1626 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); |
4d791aad | 1627 | |
e174961c JB |
1628 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", |
1629 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr); | |
4d791aad | 1630 | |
1da177e4 | 1631 | return dev; |
4d791aad CP |
1632 | |
1633 | err_out_res: | |
8830cb67 | 1634 | release_region(dev->base_addr, 32); |
4d791aad | 1635 | err_out_irq: |
1da177e4 | 1636 | free_irq(dev->irq, dev); |
4d791aad | 1637 | err_out_free: |
1da177e4 LT |
1638 | free_netdev(dev); |
1639 | return NULL; | |
1640 | } | |
1641 | ||
1642 | EXPORT_SYMBOL(init_atmel_card); | |
1643 | ||
b16a228d | 1644 | void stop_atmel_card(struct net_device *dev) |
1da177e4 LT |
1645 | { |
1646 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1647 | |
1da177e4 | 1648 | /* put a brick on it... */ |
4d791aad | 1649 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
1650 | atmel_write16(dev, GCR, 0x0060); |
1651 | atmel_write16(dev, GCR, 0x0040); | |
4d791aad | 1652 | |
1da177e4 LT |
1653 | del_timer_sync(&priv->management_timer); |
1654 | unregister_netdev(dev); | |
1655 | remove_proc_entry("driver/atmel", NULL); | |
1656 | free_irq(dev->irq, dev); | |
b4558ea9 | 1657 | kfree(priv->firmware); |
b16a228d | 1658 | release_region(dev->base_addr, 32); |
1da177e4 LT |
1659 | free_netdev(dev); |
1660 | } | |
1661 | ||
1662 | EXPORT_SYMBOL(stop_atmel_card); | |
1663 | ||
1664 | static int atmel_set_essid(struct net_device *dev, | |
1665 | struct iw_request_info *info, | |
1666 | struct iw_point *dwrq, | |
1667 | char *extra) | |
1668 | { | |
1669 | struct atmel_private *priv = netdev_priv(dev); | |
1670 | ||
1671 | /* Check if we asked for `any' */ | |
8830cb67 | 1672 | if (dwrq->flags == 0) { |
1da177e4 LT |
1673 | priv->connect_to_any_BSS = 1; |
1674 | } else { | |
1675 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1676 | ||
1677 | priv->connect_to_any_BSS = 0; | |
4d791aad | 1678 | |
1da177e4 | 1679 | /* Check the size of the string */ |
6a484db4 | 1680 | if (dwrq->length > MAX_SSID_LENGTH) |
4d791aad | 1681 | return -E2BIG; |
1da177e4 LT |
1682 | if (index != 0) |
1683 | return -EINVAL; | |
4d791aad | 1684 | |
6a484db4 JT |
1685 | memcpy(priv->new_SSID, extra, dwrq->length); |
1686 | priv->new_SSID_size = dwrq->length; | |
1da177e4 LT |
1687 | } |
1688 | ||
1689 | return -EINPROGRESS; | |
1690 | } | |
1691 | ||
1692 | static int atmel_get_essid(struct net_device *dev, | |
1693 | struct iw_request_info *info, | |
1694 | struct iw_point *dwrq, | |
1695 | char *extra) | |
1696 | { | |
1697 | struct atmel_private *priv = netdev_priv(dev); | |
1698 | ||
1699 | /* Get the current SSID */ | |
1700 | if (priv->new_SSID_size != 0) { | |
1701 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); | |
d6a13a24 | 1702 | dwrq->length = priv->new_SSID_size; |
1da177e4 LT |
1703 | } else { |
1704 | memcpy(extra, priv->SSID, priv->SSID_size); | |
d6a13a24 | 1705 | dwrq->length = priv->SSID_size; |
1da177e4 | 1706 | } |
4d791aad | 1707 | |
1da177e4 LT |
1708 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
1709 | ||
1710 | return 0; | |
1711 | } | |
1712 | ||
1713 | static int atmel_get_wap(struct net_device *dev, | |
1714 | struct iw_request_info *info, | |
1715 | struct sockaddr *awrq, | |
1716 | char *extra) | |
1717 | { | |
1718 | struct atmel_private *priv = netdev_priv(dev); | |
d458cdf7 | 1719 | memcpy(awrq->sa_data, priv->CurrentBSSID, ETH_ALEN); |
1da177e4 LT |
1720 | awrq->sa_family = ARPHRD_ETHER; |
1721 | ||
1722 | return 0; | |
1723 | } | |
1724 | ||
1725 | static int atmel_set_encode(struct net_device *dev, | |
1726 | struct iw_request_info *info, | |
1727 | struct iw_point *dwrq, | |
1728 | char *extra) | |
1729 | { | |
1730 | struct atmel_private *priv = netdev_priv(dev); | |
1731 | ||
1732 | /* Basic checking: do we have a key to set ? | |
1733 | * Note : with the new API, it's impossible to get a NULL pointer. | |
1734 | * Therefore, we need to check a key size == 0 instead. | |
1735 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag | |
1736 | * when no key is present (only change flags), but older versions | |
1737 | * don't do it. - Jean II */ | |
1738 | if (dwrq->length > 0) { | |
1739 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1740 | int current_index = priv->default_key; | |
1741 | /* Check the size of the key */ | |
1742 | if (dwrq->length > 13) { | |
1743 | return -EINVAL; | |
1744 | } | |
1745 | /* Check the index (none -> use current) */ | |
1746 | if (index < 0 || index >= 4) | |
1747 | index = current_index; | |
1748 | else | |
1749 | priv->default_key = index; | |
1750 | /* Set the length */ | |
1751 | if (dwrq->length > 5) | |
1752 | priv->wep_key_len[index] = 13; | |
1753 | else | |
1754 | if (dwrq->length > 0) | |
1755 | priv->wep_key_len[index] = 5; | |
1756 | else | |
1757 | /* Disable the key */ | |
1758 | priv->wep_key_len[index] = 0; | |
1759 | /* Check if the key is not marked as invalid */ | |
5c877fe5 | 1760 | if (!(dwrq->flags & IW_ENCODE_NOKEY)) { |
1da177e4 LT |
1761 | /* Cleanup */ |
1762 | memset(priv->wep_keys[index], 0, 13); | |
1763 | /* Copy the key in the driver */ | |
1764 | memcpy(priv->wep_keys[index], extra, dwrq->length); | |
1765 | } | |
1766 | /* WE specify that if a valid key is set, encryption | |
1767 | * should be enabled (user may turn it off later) | |
1768 | * This is also how "iwconfig ethX key on" works */ | |
4d791aad | 1769 | if (index == current_index && |
1da177e4 LT |
1770 | priv->wep_key_len[index] > 0) { |
1771 | priv->wep_is_on = 1; | |
1772 | priv->exclude_unencrypted = 1; | |
1773 | if (priv->wep_key_len[index] > 5) { | |
9a6301c1 | 1774 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
1da177e4 LT |
1775 | priv->encryption_level = 2; |
1776 | } else { | |
9a6301c1 | 1777 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
1da177e4 LT |
1778 | priv->encryption_level = 1; |
1779 | } | |
1780 | } | |
1781 | } else { | |
1782 | /* Do we want to just set the transmit key index ? */ | |
1783 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1784 | if (index >= 0 && index < 4) { |
1da177e4 LT |
1785 | priv->default_key = index; |
1786 | } else | |
1787 | /* Don't complain if only change the mode */ | |
93a3b607 | 1788 | if (!(dwrq->flags & IW_ENCODE_MODE)) |
1da177e4 | 1789 | return -EINVAL; |
1da177e4 LT |
1790 | } |
1791 | /* Read the flags */ | |
4d791aad | 1792 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
1da177e4 | 1793 | priv->wep_is_on = 0; |
4d791aad | 1794 | priv->encryption_level = 0; |
1da177e4 LT |
1795 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
1796 | } else { | |
1797 | priv->wep_is_on = 1; | |
1798 | if (priv->wep_key_len[priv->default_key] > 5) { | |
1799 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1800 | priv->encryption_level = 2; | |
1801 | } else { | |
1802 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1803 | priv->encryption_level = 1; | |
1804 | } | |
1805 | } | |
4d791aad | 1806 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
1da177e4 | 1807 | priv->exclude_unencrypted = 1; |
8830cb67 | 1808 | if (dwrq->flags & IW_ENCODE_OPEN) |
1da177e4 | 1809 | priv->exclude_unencrypted = 0; |
4d791aad | 1810 | |
1da177e4 LT |
1811 | return -EINPROGRESS; /* Call commit handler */ |
1812 | } | |
1813 | ||
1da177e4 LT |
1814 | static int atmel_get_encode(struct net_device *dev, |
1815 | struct iw_request_info *info, | |
1816 | struct iw_point *dwrq, | |
1817 | char *extra) | |
1818 | { | |
1819 | struct atmel_private *priv = netdev_priv(dev); | |
1820 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1821 | |
1da177e4 LT |
1822 | if (!priv->wep_is_on) |
1823 | dwrq->flags = IW_ENCODE_DISABLED; | |
b16a228d | 1824 | else { |
1825 | if (priv->exclude_unencrypted) | |
1826 | dwrq->flags = IW_ENCODE_RESTRICTED; | |
1827 | else | |
1828 | dwrq->flags = IW_ENCODE_OPEN; | |
1829 | } | |
1da177e4 LT |
1830 | /* Which key do we want ? -1 -> tx index */ |
1831 | if (index < 0 || index >= 4) | |
1832 | index = priv->default_key; | |
1833 | dwrq->flags |= index + 1; | |
1834 | /* Copy the key to the user buffer */ | |
1835 | dwrq->length = priv->wep_key_len[index]; | |
1836 | if (dwrq->length > 16) { | |
8830cb67 | 1837 | dwrq->length = 0; |
1da177e4 LT |
1838 | } else { |
1839 | memset(extra, 0, 16); | |
1840 | memcpy(extra, priv->wep_keys[index], dwrq->length); | |
1841 | } | |
4d791aad | 1842 | |
1da177e4 LT |
1843 | return 0; |
1844 | } | |
1845 | ||
9a6301c1 DW |
1846 | static int atmel_set_encodeext(struct net_device *dev, |
1847 | struct iw_request_info *info, | |
1848 | union iwreq_data *wrqu, | |
1849 | char *extra) | |
1850 | { | |
1851 | struct atmel_private *priv = netdev_priv(dev); | |
1852 | struct iw_point *encoding = &wrqu->encoding; | |
1853 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
0d467502 | 1854 | int idx, key_len, alg = ext->alg, set_key = 1; |
9a6301c1 DW |
1855 | |
1856 | /* Determine and validate the key index */ | |
1857 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1858 | if (idx) { | |
2c706002 | 1859 | if (idx < 1 || idx > 4) |
9a6301c1 DW |
1860 | return -EINVAL; |
1861 | idx--; | |
1862 | } else | |
1863 | idx = priv->default_key; | |
1864 | ||
0d467502 DW |
1865 | if (encoding->flags & IW_ENCODE_DISABLED) |
1866 | alg = IW_ENCODE_ALG_NONE; | |
9a6301c1 | 1867 | |
0d467502 | 1868 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
9a6301c1 | 1869 | priv->default_key = idx; |
0d467502 DW |
1870 | set_key = ext->key_len > 0 ? 1 : 0; |
1871 | } | |
9a6301c1 | 1872 | |
0d467502 DW |
1873 | if (set_key) { |
1874 | /* Set the requested key first */ | |
1875 | switch (alg) { | |
1876 | case IW_ENCODE_ALG_NONE: | |
1877 | priv->wep_is_on = 0; | |
1878 | priv->encryption_level = 0; | |
1879 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1880 | break; | |
1881 | case IW_ENCODE_ALG_WEP: | |
1882 | if (ext->key_len > 5) { | |
1883 | priv->wep_key_len[idx] = 13; | |
1884 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1885 | priv->encryption_level = 2; | |
1886 | } else if (ext->key_len > 0) { | |
1887 | priv->wep_key_len[idx] = 5; | |
1888 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1889 | priv->encryption_level = 1; | |
1890 | } else { | |
1891 | return -EINVAL; | |
1892 | } | |
1893 | priv->wep_is_on = 1; | |
1894 | memset(priv->wep_keys[idx], 0, 13); | |
1895 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); | |
1896 | memcpy(priv->wep_keys[idx], ext->key, key_len); | |
1897 | break; | |
1898 | default: | |
9a6301c1 DW |
1899 | return -EINVAL; |
1900 | } | |
9a6301c1 DW |
1901 | } |
1902 | ||
1903 | return -EINPROGRESS; | |
1904 | } | |
1905 | ||
1906 | static int atmel_get_encodeext(struct net_device *dev, | |
1907 | struct iw_request_info *info, | |
1908 | union iwreq_data *wrqu, | |
1909 | char *extra) | |
1910 | { | |
1911 | struct atmel_private *priv = netdev_priv(dev); | |
1912 | struct iw_point *encoding = &wrqu->encoding; | |
1913 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
1914 | int idx, max_key_len; | |
1915 | ||
1916 | max_key_len = encoding->length - sizeof(*ext); | |
1917 | if (max_key_len < 0) | |
1918 | return -EINVAL; | |
1919 | ||
1920 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1921 | if (idx) { | |
2c706002 | 1922 | if (idx < 1 || idx > 4) |
9a6301c1 DW |
1923 | return -EINVAL; |
1924 | idx--; | |
1925 | } else | |
1926 | idx = priv->default_key; | |
1927 | ||
1928 | encoding->flags = idx + 1; | |
1929 | memset(ext, 0, sizeof(*ext)); | |
5c877fe5 | 1930 | |
9a6301c1 DW |
1931 | if (!priv->wep_is_on) { |
1932 | ext->alg = IW_ENCODE_ALG_NONE; | |
1933 | ext->key_len = 0; | |
1934 | encoding->flags |= IW_ENCODE_DISABLED; | |
1935 | } else { | |
1936 | if (priv->encryption_level > 0) | |
1937 | ext->alg = IW_ENCODE_ALG_WEP; | |
1938 | else | |
1939 | return -EINVAL; | |
1940 | ||
1941 | ext->key_len = priv->wep_key_len[idx]; | |
1942 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); | |
1943 | encoding->flags |= IW_ENCODE_ENABLED; | |
1944 | } | |
1945 | ||
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | static int atmel_set_auth(struct net_device *dev, | |
1950 | struct iw_request_info *info, | |
1951 | union iwreq_data *wrqu, char *extra) | |
1952 | { | |
1953 | struct atmel_private *priv = netdev_priv(dev); | |
1954 | struct iw_param *param = &wrqu->param; | |
1955 | ||
1956 | switch (param->flags & IW_AUTH_INDEX) { | |
1957 | case IW_AUTH_WPA_VERSION: | |
1958 | case IW_AUTH_CIPHER_PAIRWISE: | |
1959 | case IW_AUTH_CIPHER_GROUP: | |
1960 | case IW_AUTH_KEY_MGMT: | |
1961 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
1962 | case IW_AUTH_PRIVACY_INVOKED: | |
1963 | /* | |
1964 | * atmel does not use these parameters | |
1965 | */ | |
1966 | break; | |
1967 | ||
1968 | case IW_AUTH_DROP_UNENCRYPTED: | |
1969 | priv->exclude_unencrypted = param->value ? 1 : 0; | |
1970 | break; | |
1971 | ||
1972 | case IW_AUTH_80211_AUTH_ALG: { | |
1973 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { | |
1974 | priv->exclude_unencrypted = 1; | |
1975 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { | |
1976 | priv->exclude_unencrypted = 0; | |
1977 | } else | |
1978 | return -EINVAL; | |
1979 | break; | |
1980 | } | |
1981 | ||
1982 | case IW_AUTH_WPA_ENABLED: | |
1983 | /* Silently accept disable of WPA */ | |
1984 | if (param->value > 0) | |
1985 | return -EOPNOTSUPP; | |
1986 | break; | |
1987 | ||
1988 | default: | |
1989 | return -EOPNOTSUPP; | |
1990 | } | |
1991 | return -EINPROGRESS; | |
1992 | } | |
1993 | ||
1994 | static int atmel_get_auth(struct net_device *dev, | |
1995 | struct iw_request_info *info, | |
1996 | union iwreq_data *wrqu, char *extra) | |
1997 | { | |
1998 | struct atmel_private *priv = netdev_priv(dev); | |
1999 | struct iw_param *param = &wrqu->param; | |
2000 | ||
2001 | switch (param->flags & IW_AUTH_INDEX) { | |
2002 | case IW_AUTH_DROP_UNENCRYPTED: | |
2003 | param->value = priv->exclude_unencrypted; | |
2004 | break; | |
2005 | ||
2006 | case IW_AUTH_80211_AUTH_ALG: | |
2007 | if (priv->exclude_unencrypted == 1) | |
2008 | param->value = IW_AUTH_ALG_SHARED_KEY; | |
2009 | else | |
2010 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; | |
2011 | break; | |
2012 | ||
2013 | case IW_AUTH_WPA_ENABLED: | |
2014 | param->value = 0; | |
2015 | break; | |
2016 | ||
2017 | default: | |
2018 | return -EOPNOTSUPP; | |
2019 | } | |
2020 | return 0; | |
2021 | } | |
2022 | ||
2023 | ||
1da177e4 LT |
2024 | static int atmel_get_name(struct net_device *dev, |
2025 | struct iw_request_info *info, | |
2026 | char *cwrq, | |
2027 | char *extra) | |
2028 | { | |
2029 | strcpy(cwrq, "IEEE 802.11-DS"); | |
2030 | return 0; | |
2031 | } | |
2032 | ||
2033 | static int atmel_set_rate(struct net_device *dev, | |
2034 | struct iw_request_info *info, | |
2035 | struct iw_param *vwrq, | |
2036 | char *extra) | |
2037 | { | |
2038 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2039 | |
1da177e4 LT |
2040 | if (vwrq->fixed == 0) { |
2041 | priv->tx_rate = 3; | |
2042 | priv->auto_tx_rate = 1; | |
2043 | } else { | |
2044 | priv->auto_tx_rate = 0; | |
4d791aad | 2045 | |
1da177e4 | 2046 | /* Which type of value ? */ |
4d791aad | 2047 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
1da177e4 | 2048 | /* Setting by rate index */ |
4d791aad | 2049 | priv->tx_rate = vwrq->value; |
1da177e4 LT |
2050 | } else { |
2051 | /* Setting by frequency value */ | |
2052 | switch (vwrq->value) { | |
8830cb67 JD |
2053 | case 1000000: |
2054 | priv->tx_rate = 0; | |
2055 | break; | |
2056 | case 2000000: | |
2057 | priv->tx_rate = 1; | |
2058 | break; | |
2059 | case 5500000: | |
2060 | priv->tx_rate = 2; | |
2061 | break; | |
2062 | case 11000000: | |
2063 | priv->tx_rate = 3; | |
2064 | break; | |
2065 | default: | |
2066 | return -EINVAL; | |
1da177e4 LT |
2067 | } |
2068 | } | |
2069 | } | |
2070 | ||
2071 | return -EINPROGRESS; | |
2072 | } | |
2073 | ||
2074 | static int atmel_set_mode(struct net_device *dev, | |
2075 | struct iw_request_info *info, | |
2076 | __u32 *uwrq, | |
2077 | char *extra) | |
2078 | { | |
2079 | struct atmel_private *priv = netdev_priv(dev); | |
2080 | ||
2081 | if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA) | |
2082 | return -EINVAL; | |
2083 | ||
2084 | priv->operating_mode = *uwrq; | |
4d791aad | 2085 | return -EINPROGRESS; |
1da177e4 LT |
2086 | } |
2087 | ||
2088 | static int atmel_get_mode(struct net_device *dev, | |
2089 | struct iw_request_info *info, | |
2090 | __u32 *uwrq, | |
2091 | char *extra) | |
2092 | { | |
2093 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2094 | |
1da177e4 LT |
2095 | *uwrq = priv->operating_mode; |
2096 | return 0; | |
2097 | } | |
2098 | ||
2099 | static int atmel_get_rate(struct net_device *dev, | |
2100 | struct iw_request_info *info, | |
2101 | struct iw_param *vwrq, | |
2102 | char *extra) | |
2103 | { | |
2104 | struct atmel_private *priv = netdev_priv(dev); | |
2105 | ||
2106 | if (priv->auto_tx_rate) { | |
2107 | vwrq->fixed = 0; | |
2108 | vwrq->value = 11000000; | |
2109 | } else { | |
2110 | vwrq->fixed = 1; | |
8830cb67 JD |
2111 | switch (priv->tx_rate) { |
2112 | case 0: | |
2113 | vwrq->value = 1000000; | |
2114 | break; | |
2115 | case 1: | |
2116 | vwrq->value = 2000000; | |
2117 | break; | |
2118 | case 2: | |
2119 | vwrq->value = 5500000; | |
2120 | break; | |
2121 | case 3: | |
2122 | vwrq->value = 11000000; | |
2123 | break; | |
1da177e4 LT |
2124 | } |
2125 | } | |
2126 | return 0; | |
2127 | } | |
2128 | ||
2129 | static int atmel_set_power(struct net_device *dev, | |
2130 | struct iw_request_info *info, | |
2131 | struct iw_param *vwrq, | |
2132 | char *extra) | |
2133 | { | |
2134 | struct atmel_private *priv = netdev_priv(dev); | |
2135 | priv->power_mode = vwrq->disabled ? 0 : 1; | |
2136 | return -EINPROGRESS; | |
2137 | } | |
2138 | ||
2139 | static int atmel_get_power(struct net_device *dev, | |
2140 | struct iw_request_info *info, | |
2141 | struct iw_param *vwrq, | |
2142 | char *extra) | |
2143 | { | |
2144 | struct atmel_private *priv = netdev_priv(dev); | |
2145 | vwrq->disabled = priv->power_mode ? 0 : 1; | |
2146 | vwrq->flags = IW_POWER_ON; | |
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | static int atmel_set_retry(struct net_device *dev, | |
2151 | struct iw_request_info *info, | |
2152 | struct iw_param *vwrq, | |
2153 | char *extra) | |
2154 | { | |
2155 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad CP |
2156 | |
2157 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { | |
6a484db4 | 2158 | if (vwrq->flags & IW_RETRY_LONG) |
1da177e4 | 2159 | priv->long_retry = vwrq->value; |
6a484db4 | 2160 | else if (vwrq->flags & IW_RETRY_SHORT) |
1da177e4 LT |
2161 | priv->short_retry = vwrq->value; |
2162 | else { | |
2163 | /* No modifier : set both */ | |
2164 | priv->long_retry = vwrq->value; | |
2165 | priv->short_retry = vwrq->value; | |
2166 | } | |
4d791aad | 2167 | return -EINPROGRESS; |
1da177e4 | 2168 | } |
4d791aad | 2169 | |
1da177e4 LT |
2170 | return -EINVAL; |
2171 | } | |
2172 | ||
2173 | static int atmel_get_retry(struct net_device *dev, | |
2174 | struct iw_request_info *info, | |
2175 | struct iw_param *vwrq, | |
2176 | char *extra) | |
2177 | { | |
2178 | struct atmel_private *priv = netdev_priv(dev); | |
2179 | ||
2180 | vwrq->disabled = 0; /* Can't be disabled */ | |
2181 | ||
6a484db4 JT |
2182 | /* Note : by default, display the short retry number */ |
2183 | if (vwrq->flags & IW_RETRY_LONG) { | |
2184 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; | |
1da177e4 LT |
2185 | vwrq->value = priv->long_retry; |
2186 | } else { | |
2187 | vwrq->flags = IW_RETRY_LIMIT; | |
2188 | vwrq->value = priv->short_retry; | |
4d791aad | 2189 | if (priv->long_retry != priv->short_retry) |
6a484db4 | 2190 | vwrq->flags |= IW_RETRY_SHORT; |
1da177e4 LT |
2191 | } |
2192 | ||
2193 | return 0; | |
2194 | } | |
2195 | ||
2196 | static int atmel_set_rts(struct net_device *dev, | |
2197 | struct iw_request_info *info, | |
2198 | struct iw_param *vwrq, | |
2199 | char *extra) | |
2200 | { | |
2201 | struct atmel_private *priv = netdev_priv(dev); | |
2202 | int rthr = vwrq->value; | |
2203 | ||
4d791aad | 2204 | if (vwrq->disabled) |
1da177e4 | 2205 | rthr = 2347; |
4d791aad | 2206 | if ((rthr < 0) || (rthr > 2347)) { |
1da177e4 LT |
2207 | return -EINVAL; |
2208 | } | |
2209 | priv->rts_threshold = rthr; | |
4d791aad | 2210 | |
1da177e4 LT |
2211 | return -EINPROGRESS; /* Call commit handler */ |
2212 | } | |
2213 | ||
2214 | static int atmel_get_rts(struct net_device *dev, | |
2215 | struct iw_request_info *info, | |
2216 | struct iw_param *vwrq, | |
2217 | char *extra) | |
2218 | { | |
2219 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2220 | |
1da177e4 LT |
2221 | vwrq->value = priv->rts_threshold; |
2222 | vwrq->disabled = (vwrq->value >= 2347); | |
2223 | vwrq->fixed = 1; | |
2224 | ||
2225 | return 0; | |
2226 | } | |
2227 | ||
2228 | static int atmel_set_frag(struct net_device *dev, | |
2229 | struct iw_request_info *info, | |
2230 | struct iw_param *vwrq, | |
2231 | char *extra) | |
2232 | { | |
2233 | struct atmel_private *priv = netdev_priv(dev); | |
2234 | int fthr = vwrq->value; | |
2235 | ||
4d791aad | 2236 | if (vwrq->disabled) |
1da177e4 | 2237 | fthr = 2346; |
4d791aad | 2238 | if ((fthr < 256) || (fthr > 2346)) { |
1da177e4 LT |
2239 | return -EINVAL; |
2240 | } | |
2241 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ | |
2242 | priv->frag_threshold = fthr; | |
4d791aad | 2243 | |
1da177e4 LT |
2244 | return -EINPROGRESS; /* Call commit handler */ |
2245 | } | |
2246 | ||
2247 | static int atmel_get_frag(struct net_device *dev, | |
2248 | struct iw_request_info *info, | |
2249 | struct iw_param *vwrq, | |
2250 | char *extra) | |
2251 | { | |
2252 | struct atmel_private *priv = netdev_priv(dev); | |
2253 | ||
2254 | vwrq->value = priv->frag_threshold; | |
2255 | vwrq->disabled = (vwrq->value >= 2346); | |
2256 | vwrq->fixed = 1; | |
2257 | ||
2258 | return 0; | |
2259 | } | |
2260 | ||
1da177e4 LT |
2261 | static int atmel_set_freq(struct net_device *dev, |
2262 | struct iw_request_info *info, | |
2263 | struct iw_freq *fwrq, | |
2264 | char *extra) | |
2265 | { | |
2266 | struct atmel_private *priv = netdev_priv(dev); | |
2267 | int rc = -EINPROGRESS; /* Call commit handler */ | |
4d791aad | 2268 | |
1da177e4 | 2269 | /* If setting by frequency, convert to a channel */ |
9ee677c2 | 2270 | if (fwrq->e == 1) { |
1da177e4 | 2271 | int f = fwrq->m / 100000; |
9ee677c2 | 2272 | |
1da177e4 LT |
2273 | /* Hack to fall through... */ |
2274 | fwrq->e = 0; | |
61e5487b | 2275 | fwrq->m = ieee80211_frequency_to_channel(f); |
1da177e4 LT |
2276 | } |
2277 | /* Setting by channel number */ | |
4d791aad | 2278 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
1da177e4 LT |
2279 | rc = -EOPNOTSUPP; |
2280 | else { | |
2281 | int channel = fwrq->m; | |
2282 | if (atmel_validate_channel(priv, channel) == 0) { | |
2283 | priv->channel = channel; | |
2284 | } else { | |
2285 | rc = -EINVAL; | |
4d791aad | 2286 | } |
1da177e4 LT |
2287 | } |
2288 | return rc; | |
2289 | } | |
2290 | ||
2291 | static int atmel_get_freq(struct net_device *dev, | |
2292 | struct iw_request_info *info, | |
2293 | struct iw_freq *fwrq, | |
2294 | char *extra) | |
2295 | { | |
2296 | struct atmel_private *priv = netdev_priv(dev); | |
2297 | ||
2298 | fwrq->m = priv->channel; | |
2299 | fwrq->e = 0; | |
2300 | return 0; | |
2301 | } | |
2302 | ||
2303 | static int atmel_set_scan(struct net_device *dev, | |
2304 | struct iw_request_info *info, | |
9930ccee | 2305 | struct iw_point *dwrq, |
1da177e4 LT |
2306 | char *extra) |
2307 | { | |
2308 | struct atmel_private *priv = netdev_priv(dev); | |
2309 | unsigned long flags; | |
2310 | ||
2311 | /* Note : you may have realised that, as this is a SET operation, | |
2312 | * this is privileged and therefore a normal user can't | |
2313 | * perform scanning. | |
2314 | * This is not an error, while the device perform scanning, | |
2315 | * traffic doesn't flow, so it's a perfect DoS... | |
2316 | * Jean II */ | |
4d791aad | 2317 | |
1da177e4 LT |
2318 | if (priv->station_state == STATION_STATE_DOWN) |
2319 | return -EAGAIN; | |
2320 | ||
2321 | /* Timeout old surveys. */ | |
6e33e30d | 2322 | if (time_after(jiffies, priv->last_survey + 20 * HZ)) |
1da177e4 LT |
2323 | priv->site_survey_state = SITE_SURVEY_IDLE; |
2324 | priv->last_survey = jiffies; | |
2325 | ||
2326 | /* Initiate a scan command */ | |
2327 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) | |
2328 | return -EBUSY; | |
4d791aad | 2329 | |
1da177e4 LT |
2330 | del_timer_sync(&priv->management_timer); |
2331 | spin_lock_irqsave(&priv->irqlock, flags); | |
4d791aad | 2332 | |
1da177e4 LT |
2333 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
2334 | priv->fast_scan = 0; | |
2335 | atmel_scan(priv, 0); | |
2336 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
4d791aad | 2337 | |
1da177e4 LT |
2338 | return 0; |
2339 | } | |
2340 | ||
2341 | static int atmel_get_scan(struct net_device *dev, | |
2342 | struct iw_request_info *info, | |
2343 | struct iw_point *dwrq, | |
2344 | char *extra) | |
2345 | { | |
2346 | struct atmel_private *priv = netdev_priv(dev); | |
2347 | int i; | |
2348 | char *current_ev = extra; | |
2349 | struct iw_event iwe; | |
4d791aad | 2350 | |
1da177e4 LT |
2351 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
2352 | return -EAGAIN; | |
4d791aad CP |
2353 | |
2354 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2355 | iwe.cmd = SIOCGIWAP; |
2356 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
d458cdf7 | 2357 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, ETH_ALEN); |
ccc58057 DM |
2358 | current_ev = iwe_stream_add_event(info, current_ev, |
2359 | extra + IW_SCAN_MAX_DATA, | |
2360 | &iwe, IW_EV_ADDR_LEN); | |
1da177e4 LT |
2361 | |
2362 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; | |
2363 | if (iwe.u.data.length > 32) | |
2364 | iwe.u.data.length = 32; | |
2365 | iwe.cmd = SIOCGIWESSID; | |
2366 | iwe.u.data.flags = 1; | |
ccc58057 DM |
2367 | current_ev = iwe_stream_add_point(info, current_ev, |
2368 | extra + IW_SCAN_MAX_DATA, | |
2369 | &iwe, priv->BSSinfo[i].SSID); | |
4d791aad | 2370 | |
1da177e4 LT |
2371 | iwe.cmd = SIOCGIWMODE; |
2372 | iwe.u.mode = priv->BSSinfo[i].BSStype; | |
ccc58057 DM |
2373 | current_ev = iwe_stream_add_event(info, current_ev, |
2374 | extra + IW_SCAN_MAX_DATA, | |
2375 | &iwe, IW_EV_UINT_LEN); | |
4d791aad | 2376 | |
1da177e4 LT |
2377 | iwe.cmd = SIOCGIWFREQ; |
2378 | iwe.u.freq.m = priv->BSSinfo[i].channel; | |
2379 | iwe.u.freq.e = 0; | |
ccc58057 DM |
2380 | current_ev = iwe_stream_add_event(info, current_ev, |
2381 | extra + IW_SCAN_MAX_DATA, | |
2382 | &iwe, IW_EV_FREQ_LEN); | |
4d791aad | 2383 | |
3b31dc32 HK |
2384 | /* Add quality statistics */ |
2385 | iwe.cmd = IWEVQUAL; | |
2386 | iwe.u.qual.level = priv->BSSinfo[i].RSSI; | |
2387 | iwe.u.qual.qual = iwe.u.qual.level; | |
2388 | /* iwe.u.qual.noise = SOMETHING */ | |
ccc58057 DM |
2389 | current_ev = iwe_stream_add_event(info, current_ev, |
2390 | extra + IW_SCAN_MAX_DATA, | |
2391 | &iwe, IW_EV_QUAL_LEN); | |
3b31dc32 HK |
2392 | |
2393 | ||
1da177e4 LT |
2394 | iwe.cmd = SIOCGIWENCODE; |
2395 | if (priv->BSSinfo[i].UsingWEP) | |
2396 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
2397 | else | |
2398 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
2399 | iwe.u.data.length = 0; | |
ccc58057 DM |
2400 | current_ev = iwe_stream_add_point(info, current_ev, |
2401 | extra + IW_SCAN_MAX_DATA, | |
2402 | &iwe, NULL); | |
1da177e4 LT |
2403 | } |
2404 | ||
2405 | /* Length of data */ | |
2406 | dwrq->length = (current_ev - extra); | |
4d791aad CP |
2407 | dwrq->flags = 0; |
2408 | ||
1da177e4 LT |
2409 | return 0; |
2410 | } | |
2411 | ||
2412 | static int atmel_get_range(struct net_device *dev, | |
2413 | struct iw_request_info *info, | |
2414 | struct iw_point *dwrq, | |
2415 | char *extra) | |
2416 | { | |
2417 | struct atmel_private *priv = netdev_priv(dev); | |
2418 | struct iw_range *range = (struct iw_range *) extra; | |
4d791aad | 2419 | int k, i, j; |
1da177e4 LT |
2420 | |
2421 | dwrq->length = sizeof(struct iw_range); | |
f36be621 | 2422 | memset(range, 0, sizeof(struct iw_range)); |
1da177e4 LT |
2423 | range->min_nwid = 0x0000; |
2424 | range->max_nwid = 0x0000; | |
2425 | range->num_channels = 0; | |
b4341135 | 2426 | for (j = 0; j < ARRAY_SIZE(channel_table); j++) |
1da177e4 LT |
2427 | if (priv->reg_domain == channel_table[j].reg_domain) { |
2428 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; | |
2429 | break; | |
2430 | } | |
2431 | if (range->num_channels != 0) { | |
4d791aad | 2432 | for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) { |
1da177e4 | 2433 | range->freq[k].i = i; /* List index */ |
9ee677c2 DK |
2434 | |
2435 | /* Values in MHz -> * 10^5 * 10 */ | |
61e5487b ZG |
2436 | range->freq[k].m = 100000 * |
2437 | ieee80211_channel_to_frequency(i, IEEE80211_BAND_2GHZ); | |
9ee677c2 | 2438 | range->freq[k++].e = 1; |
1da177e4 LT |
2439 | } |
2440 | range->num_frequency = k; | |
2441 | } | |
4d791aad | 2442 | |
1da177e4 LT |
2443 | range->max_qual.qual = 100; |
2444 | range->max_qual.level = 100; | |
2445 | range->max_qual.noise = 0; | |
2446 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
2447 | ||
2448 | range->avg_qual.qual = 50; | |
2449 | range->avg_qual.level = 50; | |
2450 | range->avg_qual.noise = 0; | |
2451 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; | |
2452 | ||
2453 | range->sensitivity = 0; | |
2454 | ||
2455 | range->bitrate[0] = 1000000; | |
2456 | range->bitrate[1] = 2000000; | |
2457 | range->bitrate[2] = 5500000; | |
2458 | range->bitrate[3] = 11000000; | |
2459 | range->num_bitrates = 4; | |
2460 | ||
2461 | range->min_rts = 0; | |
2462 | range->max_rts = 2347; | |
2463 | range->min_frag = 256; | |
2464 | range->max_frag = 2346; | |
2465 | ||
2466 | range->encoding_size[0] = 5; | |
2467 | range->encoding_size[1] = 13; | |
2468 | range->num_encoding_sizes = 2; | |
2469 | range->max_encoding_tokens = 4; | |
4d791aad | 2470 | |
1da177e4 LT |
2471 | range->pmp_flags = IW_POWER_ON; |
2472 | range->pmt_flags = IW_POWER_ON; | |
2473 | range->pm_capa = 0; | |
4d791aad | 2474 | |
1da177e4 LT |
2475 | range->we_version_source = WIRELESS_EXT; |
2476 | range->we_version_compiled = WIRELESS_EXT; | |
2477 | range->retry_capa = IW_RETRY_LIMIT ; | |
2478 | range->retry_flags = IW_RETRY_LIMIT; | |
2479 | range->r_time_flags = 0; | |
2480 | range->min_retry = 1; | |
2481 | range->max_retry = 65535; | |
2482 | ||
2483 | return 0; | |
2484 | } | |
2485 | ||
2486 | static int atmel_set_wap(struct net_device *dev, | |
2487 | struct iw_request_info *info, | |
2488 | struct sockaddr *awrq, | |
2489 | char *extra) | |
2490 | { | |
2491 | struct atmel_private *priv = netdev_priv(dev); | |
2492 | int i; | |
9a6301c1 DW |
2493 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
2494 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
1da177e4 LT |
2495 | unsigned long flags; |
2496 | ||
2497 | if (awrq->sa_family != ARPHRD_ETHER) | |
2498 | return -EINVAL; | |
4d791aad | 2499 | |
9a6301c1 DW |
2500 | if (!memcmp(any, awrq->sa_data, 6) || |
2501 | !memcmp(off, awrq->sa_data, 6)) { | |
1da177e4 LT |
2502 | del_timer_sync(&priv->management_timer); |
2503 | spin_lock_irqsave(&priv->irqlock, flags); | |
2504 | atmel_scan(priv, 1); | |
2505 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2506 | return 0; | |
2507 | } | |
4d791aad CP |
2508 | |
2509 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2510 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
2511 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { | |
2512 | return -EINVAL; | |
2513 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { | |
2514 | return -EINVAL; | |
2515 | } else { | |
2516 | del_timer_sync(&priv->management_timer); | |
2517 | spin_lock_irqsave(&priv->irqlock, flags); | |
2518 | atmel_join_bss(priv, i); | |
2519 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2520 | return 0; | |
2521 | } | |
2522 | } | |
2523 | } | |
4d791aad | 2524 | |
1da177e4 LT |
2525 | return -EINVAL; |
2526 | } | |
4d791aad | 2527 | |
1da177e4 LT |
2528 | static int atmel_config_commit(struct net_device *dev, |
2529 | struct iw_request_info *info, /* NULL */ | |
2530 | void *zwrq, /* NULL */ | |
2531 | char *extra) /* NULL */ | |
2532 | { | |
2533 | return atmel_open(dev); | |
2534 | } | |
2535 | ||
4d791aad | 2536 | static const iw_handler atmel_handler[] = |
1da177e4 LT |
2537 | { |
2538 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ | |
4d791aad | 2539 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
1da177e4 LT |
2540 | (iw_handler) NULL, /* SIOCSIWNWID */ |
2541 | (iw_handler) NULL, /* SIOCGIWNWID */ | |
2542 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ | |
2543 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ | |
2544 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ | |
2545 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ | |
4d791aad CP |
2546 | (iw_handler) NULL, /* SIOCSIWSENS */ |
2547 | (iw_handler) NULL, /* SIOCGIWSENS */ | |
1da177e4 LT |
2548 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
2549 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ | |
2550 | (iw_handler) NULL, /* SIOCSIWPRIV */ | |
2551 | (iw_handler) NULL, /* SIOCGIWPRIV */ | |
2552 | (iw_handler) NULL, /* SIOCSIWSTATS */ | |
2553 | (iw_handler) NULL, /* SIOCGIWSTATS */ | |
2554 | (iw_handler) NULL, /* SIOCSIWSPY */ | |
2555 | (iw_handler) NULL, /* SIOCGIWSPY */ | |
2556 | (iw_handler) NULL, /* -- hole -- */ | |
2557 | (iw_handler) NULL, /* -- hole -- */ | |
2558 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ | |
2559 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ | |
2560 | (iw_handler) NULL, /* -- hole -- */ | |
4d791aad | 2561 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
1da177e4 LT |
2562 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
2563 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ | |
2564 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ | |
2565 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ | |
4d791aad CP |
2566 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
2567 | (iw_handler) NULL, /* SIOCGIWNICKN */ | |
1da177e4 LT |
2568 | (iw_handler) NULL, /* -- hole -- */ |
2569 | (iw_handler) NULL, /* -- hole -- */ | |
2570 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ | |
2571 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ | |
2572 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ | |
2573 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ | |
2574 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ | |
2575 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ | |
4d791aad CP |
2576 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
2577 | (iw_handler) NULL, /* SIOCGIWTXPOW */ | |
1da177e4 LT |
2578 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
2579 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ | |
2580 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ | |
2581 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ | |
2582 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ | |
2583 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ | |
9a6301c1 DW |
2584 | (iw_handler) NULL, /* -- hole -- */ |
2585 | (iw_handler) NULL, /* -- hole -- */ | |
2586 | (iw_handler) NULL, /* SIOCSIWGENIE */ | |
2587 | (iw_handler) NULL, /* SIOCGIWGENIE */ | |
2588 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ | |
2589 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ | |
2590 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ | |
2591 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ | |
2592 | (iw_handler) NULL, /* SIOCSIWPMKSA */ | |
1da177e4 LT |
2593 | }; |
2594 | ||
4d791aad | 2595 | static const iw_handler atmel_private_handler[] = |
1da177e4 LT |
2596 | { |
2597 | NULL, /* SIOCIWFIRSTPRIV */ | |
2598 | }; | |
2599 | ||
f0db82a5 | 2600 | struct atmel_priv_ioctl { |
1da177e4 | 2601 | char id[32]; |
4d791aad CP |
2602 | unsigned char __user *data; |
2603 | unsigned short len; | |
f0db82a5 | 2604 | }; |
1da177e4 | 2605 | |
4d791aad CP |
2606 | #define ATMELFWL SIOCIWFIRSTPRIV |
2607 | #define ATMELIDIFC ATMELFWL + 1 | |
2608 | #define ATMELRD ATMELFWL + 2 | |
2609 | #define ATMELMAGIC 0x51807 | |
1da177e4 LT |
2610 | #define REGDOMAINSZ 20 |
2611 | ||
2612 | static const struct iw_priv_args atmel_private_args[] = { | |
4d791aad CP |
2613 | { |
2614 | .cmd = ATMELFWL, | |
2615 | .set_args = IW_PRIV_TYPE_BYTE | |
2616 | | IW_PRIV_SIZE_FIXED | |
f0db82a5 | 2617 | | sizeof(struct atmel_priv_ioctl), |
4d791aad CP |
2618 | .get_args = IW_PRIV_TYPE_NONE, |
2619 | .name = "atmelfwl" | |
2620 | }, { | |
2621 | .cmd = ATMELIDIFC, | |
2622 | .set_args = IW_PRIV_TYPE_NONE, | |
2623 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, | |
2624 | .name = "atmelidifc" | |
2625 | }, { | |
2626 | .cmd = ATMELRD, | |
2627 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, | |
2628 | .get_args = IW_PRIV_TYPE_NONE, | |
2629 | .name = "regdomain" | |
2630 | }, | |
1da177e4 LT |
2631 | }; |
2632 | ||
8830cb67 | 2633 | static const struct iw_handler_def atmel_handler_def = { |
b4341135 DT |
2634 | .num_standard = ARRAY_SIZE(atmel_handler), |
2635 | .num_private = ARRAY_SIZE(atmel_private_handler), | |
2636 | .num_private_args = ARRAY_SIZE(atmel_private_args), | |
1da177e4 | 2637 | .standard = (iw_handler *) atmel_handler, |
4d791aad | 2638 | .private = (iw_handler *) atmel_private_handler, |
72f98d38 JT |
2639 | .private_args = (struct iw_priv_args *) atmel_private_args, |
2640 | .get_wireless_stats = atmel_get_wireless_stats | |
1da177e4 LT |
2641 | }; |
2642 | ||
2643 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2644 | { | |
2645 | int i, rc = 0; | |
2646 | struct atmel_private *priv = netdev_priv(dev); | |
f0db82a5 | 2647 | struct atmel_priv_ioctl com; |
1da177e4 LT |
2648 | struct iwreq *wrq = (struct iwreq *) rq; |
2649 | unsigned char *new_firmware; | |
4d791aad | 2650 | char domain[REGDOMAINSZ + 1]; |
1da177e4 LT |
2651 | |
2652 | switch (cmd) { | |
1da177e4 | 2653 | case ATMELIDIFC: |
4d791aad | 2654 | wrq->u.param.value = ATMELMAGIC; |
1da177e4 | 2655 | break; |
4d791aad | 2656 | |
1da177e4 LT |
2657 | case ATMELFWL: |
2658 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { | |
2659 | rc = -EFAULT; | |
2660 | break; | |
2661 | } | |
2662 | ||
2663 | if (!capable(CAP_NET_ADMIN)) { | |
2664 | rc = -EPERM; | |
2665 | break; | |
2666 | } | |
2667 | ||
2668 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { | |
2669 | rc = -ENOMEM; | |
2670 | break; | |
2671 | } | |
2672 | ||
2673 | if (copy_from_user(new_firmware, com.data, com.len)) { | |
2674 | kfree(new_firmware); | |
2675 | rc = -EFAULT; | |
2676 | break; | |
2677 | } | |
2678 | ||
b4558ea9 | 2679 | kfree(priv->firmware); |
4d791aad | 2680 | |
1da177e4 LT |
2681 | priv->firmware = new_firmware; |
2682 | priv->firmware_length = com.len; | |
2683 | strncpy(priv->firmware_id, com.id, 31); | |
2684 | priv->firmware_id[31] = '\0'; | |
2685 | break; | |
2686 | ||
2687 | case ATMELRD: | |
2688 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { | |
2689 | rc = -EFAULT; | |
2690 | break; | |
2691 | } | |
4d791aad | 2692 | |
1da177e4 LT |
2693 | if (!capable(CAP_NET_ADMIN)) { |
2694 | rc = -EPERM; | |
2695 | break; | |
2696 | } | |
2697 | ||
2698 | domain[REGDOMAINSZ] = 0; | |
2699 | rc = -EINVAL; | |
b4341135 | 2700 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) { |
908414af | 2701 | if (!strcasecmp(channel_table[i].name, domain)) { |
1da177e4 LT |
2702 | priv->config_reg_domain = channel_table[i].reg_domain; |
2703 | rc = 0; | |
2704 | } | |
2705 | } | |
4d791aad | 2706 | |
1da177e4 LT |
2707 | if (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
2708 | rc = atmel_open(dev); | |
2709 | break; | |
4d791aad | 2710 | |
1da177e4 LT |
2711 | default: |
2712 | rc = -EOPNOTSUPP; | |
2713 | } | |
4d791aad | 2714 | |
1da177e4 LT |
2715 | return rc; |
2716 | } | |
2717 | ||
2718 | struct auth_body { | |
0e5ce1f3 AV |
2719 | __le16 alg; |
2720 | __le16 trans_seq; | |
2721 | __le16 status; | |
1da177e4 LT |
2722 | u8 el_id; |
2723 | u8 chall_text_len; | |
2724 | u8 chall_text[253]; | |
4d791aad | 2725 | }; |
1da177e4 LT |
2726 | |
2727 | static void atmel_enter_state(struct atmel_private *priv, int new_state) | |
2728 | { | |
2729 | int old_state = priv->station_state; | |
4d791aad | 2730 | |
1da177e4 LT |
2731 | if (new_state == old_state) |
2732 | return; | |
4d791aad | 2733 | |
1da177e4 | 2734 | priv->station_state = new_state; |
4d791aad | 2735 | |
1da177e4 LT |
2736 | if (new_state == STATION_STATE_READY) { |
2737 | netif_start_queue(priv->dev); | |
2738 | netif_carrier_on(priv->dev); | |
2739 | } | |
2740 | ||
2741 | if (old_state == STATION_STATE_READY) { | |
2742 | netif_carrier_off(priv->dev); | |
2743 | if (netif_running(priv->dev)) | |
2744 | netif_stop_queue(priv->dev); | |
2745 | priv->last_beacon_timestamp = 0; | |
2746 | } | |
2747 | } | |
2748 | ||
2749 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) | |
2750 | { | |
2751 | struct { | |
d458cdf7 | 2752 | u8 BSSID[ETH_ALEN]; |
1da177e4 LT |
2753 | u8 SSID[MAX_SSID_LENGTH]; |
2754 | u8 scan_type; | |
2755 | u8 channel; | |
0e5ce1f3 AV |
2756 | __le16 BSS_type; |
2757 | __le16 min_channel_time; | |
2758 | __le16 max_channel_time; | |
1da177e4 LT |
2759 | u8 options; |
2760 | u8 SSID_size; | |
2761 | } cmd; | |
4d791aad | 2762 | |
93803b33 | 2763 | eth_broadcast_addr(cmd.BSSID); |
1da177e4 LT |
2764 | |
2765 | if (priv->fast_scan) { | |
2766 | cmd.SSID_size = priv->SSID_size; | |
2767 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2768 | cmd.min_channel_time = cpu_to_le16(10); | |
2769 | cmd.max_channel_time = cpu_to_le16(50); | |
2770 | } else { | |
2771 | priv->BSS_list_entries = 0; | |
2772 | cmd.SSID_size = 0; | |
2773 | cmd.min_channel_time = cpu_to_le16(10); | |
2774 | cmd.max_channel_time = cpu_to_le16(120); | |
2775 | } | |
4d791aad | 2776 | |
1da177e4 | 2777 | cmd.options = 0; |
4d791aad | 2778 | |
1da177e4 LT |
2779 | if (!specific_ssid) |
2780 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; | |
4d791aad CP |
2781 | |
2782 | cmd.channel = (priv->channel & 0x7f); | |
1da177e4 | 2783 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
4d791aad | 2784 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
1da177e4 | 2785 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
4d791aad | 2786 | |
1da177e4 LT |
2787 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
2788 | ||
2789 | /* This must come after all hardware access to avoid being messed up | |
2790 | by stuff happening in interrupt context after we leave STATE_DOWN */ | |
2791 | atmel_enter_state(priv, STATION_STATE_SCANNING); | |
2792 | } | |
2793 | ||
2794 | static void join(struct atmel_private *priv, int type) | |
2795 | { | |
2796 | struct { | |
2797 | u8 BSSID[6]; | |
2798 | u8 SSID[MAX_SSID_LENGTH]; | |
2799 | u8 BSS_type; /* this is a short in a scan command - weird */ | |
2800 | u8 channel; | |
0e5ce1f3 | 2801 | __le16 timeout; |
1da177e4 LT |
2802 | u8 SSID_size; |
2803 | u8 reserved; | |
2804 | } cmd; | |
2805 | ||
2806 | cmd.SSID_size = priv->SSID_size; | |
2807 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
d458cdf7 | 2808 | memcpy(cmd.BSSID, priv->CurrentBSSID, ETH_ALEN); |
1da177e4 LT |
2809 | cmd.channel = (priv->channel & 0x7f); |
2810 | cmd.BSS_type = type; | |
2811 | cmd.timeout = cpu_to_le16(2000); | |
2812 | ||
4d791aad | 2813 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
1da177e4 LT |
2814 | } |
2815 | ||
1da177e4 LT |
2816 | static void start(struct atmel_private *priv, int type) |
2817 | { | |
2818 | struct { | |
2819 | u8 BSSID[6]; | |
2820 | u8 SSID[MAX_SSID_LENGTH]; | |
4d791aad | 2821 | u8 BSS_type; |
1da177e4 LT |
2822 | u8 channel; |
2823 | u8 SSID_size; | |
2824 | u8 reserved[3]; | |
2825 | } cmd; | |
2826 | ||
2827 | cmd.SSID_size = priv->SSID_size; | |
2828 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
d458cdf7 | 2829 | memcpy(cmd.BSSID, priv->BSSID, ETH_ALEN); |
1da177e4 LT |
2830 | cmd.BSS_type = type; |
2831 | cmd.channel = (priv->channel & 0x7f); | |
2832 | ||
4d791aad | 2833 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
1da177e4 LT |
2834 | } |
2835 | ||
4d791aad CP |
2836 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
2837 | u8 channel) | |
1da177e4 LT |
2838 | { |
2839 | int rejoin = 0; | |
2c706002 | 2840 | int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
1da177e4 LT |
2841 | SHORT_PREAMBLE : LONG_PREAMBLE; |
2842 | ||
2843 | if (priv->preamble != new) { | |
2844 | priv->preamble = new; | |
2845 | rejoin = 1; | |
2846 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); | |
2847 | } | |
4d791aad | 2848 | |
1da177e4 LT |
2849 | if (priv->channel != channel) { |
2850 | priv->channel = channel; | |
2851 | rejoin = 1; | |
2852 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); | |
2853 | } | |
4d791aad | 2854 | |
1da177e4 LT |
2855 | if (rejoin) { |
2856 | priv->station_is_associated = 0; | |
2857 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 2858 | |
1da177e4 LT |
2859 | if (priv->operating_mode == IW_MODE_INFRA) |
2860 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 2861 | else |
1da177e4 | 2862 | join(priv, BSS_TYPE_AD_HOC); |
4d791aad | 2863 | } |
1da177e4 LT |
2864 | } |
2865 | ||
4d791aad CP |
2866 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
2867 | u8 *challenge, int challenge_len) | |
1da177e4 | 2868 | { |
2c706002 | 2869 | struct ieee80211_hdr header; |
1da177e4 | 2870 | struct auth_body auth; |
4d791aad | 2871 | |
2c706002 | 2872 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); |
4d791aad | 2873 | header.duration_id = cpu_to_le16(0x8000); |
2c706002 | 2874 | header.seq_ctrl = 0; |
d458cdf7 JP |
2875 | memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN); |
2876 | memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN); | |
2877 | memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN); | |
4d791aad CP |
2878 | |
2879 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) | |
1da177e4 | 2880 | /* no WEP for authentication frames with TrSeqNo 1 */ |
8830cb67 | 2881 | header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
4d791aad CP |
2882 | |
2883 | auth.alg = cpu_to_le16(system); | |
1da177e4 LT |
2884 | |
2885 | auth.status = 0; | |
2886 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); | |
4d791aad | 2887 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
1da177e4 | 2888 | priv->CurrentAuthentTransactionSeqNum += 2; |
4d791aad | 2889 | |
1da177e4 LT |
2890 | if (challenge_len != 0) { |
2891 | auth.el_id = 16; /* challenge_text */ | |
2892 | auth.chall_text_len = challenge_len; | |
2893 | memcpy(auth.chall_text, challenge, challenge_len); | |
2894 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); | |
2895 | } else { | |
2896 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | static void send_association_request(struct atmel_private *priv, int is_reassoc) | |
2901 | { | |
2902 | u8 *ssid_el_p; | |
2903 | int bodysize; | |
2c706002 | 2904 | struct ieee80211_hdr header; |
1da177e4 | 2905 | struct ass_req_format { |
0e5ce1f3 AV |
2906 | __le16 capability; |
2907 | __le16 listen_interval; | |
d458cdf7 | 2908 | u8 ap[ETH_ALEN]; /* nothing after here directly accessible */ |
1da177e4 LT |
2909 | u8 ssid_el_id; |
2910 | u8 ssid_len; | |
2911 | u8 ssid[MAX_SSID_LENGTH]; | |
2912 | u8 sup_rates_el_id; | |
2913 | u8 sup_rates_len; | |
2914 | u8 rates[4]; | |
2915 | } body; | |
4d791aad | 2916 | |
2c706002 | 2917 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
b453872c | 2918 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
1da177e4 | 2919 | header.duration_id = cpu_to_le16(0x8000); |
2c706002 | 2920 | header.seq_ctrl = 0; |
1da177e4 | 2921 | |
d458cdf7 JP |
2922 | memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN); |
2923 | memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN); | |
2924 | memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN); | |
1da177e4 | 2925 | |
4861dd79 | 2926 | body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS); |
1da177e4 | 2927 | if (priv->wep_is_on) |
4861dd79 | 2928 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); |
1da177e4 | 2929 | if (priv->preamble == SHORT_PREAMBLE) |
2c706002 | 2930 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); |
1da177e4 LT |
2931 | |
2932 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); | |
4d791aad | 2933 | |
1da177e4 LT |
2934 | /* current AP address - only in reassoc frame */ |
2935 | if (is_reassoc) { | |
d458cdf7 | 2936 | memcpy(body.ap, priv->CurrentBSSID, ETH_ALEN); |
2c208890 | 2937 | ssid_el_p = &body.ssid_el_id; |
1da177e4 LT |
2938 | bodysize = 18 + priv->SSID_size; |
2939 | } else { | |
2c208890 | 2940 | ssid_el_p = &body.ap[0]; |
1da177e4 LT |
2941 | bodysize = 12 + priv->SSID_size; |
2942 | } | |
4d791aad | 2943 | |
2c706002 | 2944 | ssid_el_p[0] = WLAN_EID_SSID; |
1da177e4 LT |
2945 | ssid_el_p[1] = priv->SSID_size; |
2946 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); | |
2c706002 | 2947 | ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES; |
02582e9b | 2948 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of supported rates */ |
1da177e4 LT |
2949 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); |
2950 | ||
2951 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); | |
2952 | } | |
2953 | ||
4d791aad | 2954 | static int is_frame_from_current_bss(struct atmel_private *priv, |
2c706002 | 2955 | struct ieee80211_hdr *header) |
1da177e4 | 2956 | { |
2c706002 | 2957 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
2958 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
2959 | else | |
2960 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; | |
2961 | } | |
2962 | ||
2963 | static int retrieve_bss(struct atmel_private *priv) | |
2964 | { | |
2965 | int i; | |
2966 | int max_rssi = -128; | |
2967 | int max_index = -1; | |
4d791aad | 2968 | |
1da177e4 LT |
2969 | if (priv->BSS_list_entries == 0) |
2970 | return -1; | |
4d791aad | 2971 | |
1da177e4 | 2972 | if (priv->connect_to_any_BSS) { |
4d791aad CP |
2973 | /* Select a BSS with the max-RSSI but of the same type and of |
2974 | the same WEP mode and that it is not marked as 'bad' (i.e. | |
2975 | we had previously failed to connect to this BSS with the | |
2976 | settings that we currently use) */ | |
1da177e4 | 2977 | priv->current_BSS = 0; |
4d791aad | 2978 | for (i = 0; i < priv->BSS_list_entries; i++) { |
1da177e4 | 2979 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
4d791aad | 2980 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
1da177e4 LT |
2981 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
2982 | !(priv->BSSinfo[i].channel & 0x80)) { | |
2983 | max_rssi = priv->BSSinfo[i].RSSI; | |
2984 | priv->current_BSS = max_index = i; | |
2985 | } | |
1da177e4 LT |
2986 | } |
2987 | return max_index; | |
2988 | } | |
4d791aad CP |
2989 | |
2990 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2991 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
2992 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && | |
2993 | priv->operating_mode == priv->BSSinfo[i].BSStype && | |
2994 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { | |
2995 | if (priv->BSSinfo[i].RSSI >= max_rssi) { | |
2996 | max_rssi = priv->BSSinfo[i].RSSI; | |
2997 | max_index = i; | |
2998 | } | |
2999 | } | |
3000 | } | |
3001 | return max_index; | |
3002 | } | |
3003 | ||
4d791aad | 3004 | static void store_bss_info(struct atmel_private *priv, |
2c706002 | 3005 | struct ieee80211_hdr *header, u16 capability, |
4d791aad CP |
3006 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, |
3007 | u8 *ssid, int is_beacon) | |
1da177e4 | 3008 | { |
4861dd79 | 3009 | u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3; |
1da177e4 | 3010 | int i, index; |
4d791aad CP |
3011 | |
3012 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) | |
d458cdf7 | 3013 | if (memcmp(bss, priv->BSSinfo[i].BSSID, ETH_ALEN) == 0) |
1da177e4 LT |
3014 | index = i; |
3015 | ||
8830cb67 | 3016 | /* If we process a probe and an entry from this BSS exists |
1da177e4 LT |
3017 | we will update the BSS entry with the info from this BSS. |
3018 | If we process a beacon we will only update RSSI */ | |
3019 | ||
3020 | if (index == -1) { | |
3021 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) | |
3022 | return; | |
3023 | index = priv->BSS_list_entries++; | |
d458cdf7 | 3024 | memcpy(priv->BSSinfo[index].BSSID, bss, ETH_ALEN); |
1da177e4 LT |
3025 | priv->BSSinfo[index].RSSI = rssi; |
3026 | } else { | |
3027 | if (rssi > priv->BSSinfo[index].RSSI) | |
3028 | priv->BSSinfo[index].RSSI = rssi; | |
3029 | if (is_beacon) | |
3030 | return; | |
3031 | } | |
3032 | ||
3033 | priv->BSSinfo[index].channel = channel; | |
3034 | priv->BSSinfo[index].beacon_period = beacon_period; | |
4861dd79 | 3035 | priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY; |
1da177e4 LT |
3036 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
3037 | priv->BSSinfo[index].SSIDsize = ssid_len; | |
3038 | ||
4861dd79 | 3039 | if (capability & WLAN_CAPABILITY_IBSS) |
1da177e4 | 3040 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
4861dd79 | 3041 | else if (capability & WLAN_CAPABILITY_ESS) |
8830cb67 | 3042 | priv->BSSinfo[index].BSStype = IW_MODE_INFRA; |
4d791aad | 3043 | |
2c706002 | 3044 | priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
1da177e4 LT |
3045 | SHORT_PREAMBLE : LONG_PREAMBLE; |
3046 | } | |
3047 | ||
3048 | static void authenticate(struct atmel_private *priv, u16 frame_len) | |
3049 | { | |
3050 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; | |
3051 | u16 status = le16_to_cpu(auth->status); | |
3052 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); | |
b16a228d | 3053 | u16 system = le16_to_cpu(auth->alg); |
4d791aad | 3054 | |
4861dd79 | 3055 | if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) { |
1da177e4 LT |
3056 | /* no WEP */ |
3057 | if (priv->station_was_associated) { | |
3058 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3059 | send_association_request(priv, 1); | |
3060 | return; | |
3061 | } else { | |
3062 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3063 | send_association_request(priv, 0); | |
3064 | return; | |
4d791aad | 3065 | } |
1da177e4 | 3066 | } |
4d791aad | 3067 | |
4861dd79 | 3068 | if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) { |
73451379 | 3069 | int should_associate = 0; |
1da177e4 LT |
3070 | /* WEP */ |
3071 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) | |
3072 | return; | |
4d791aad | 3073 | |
4861dd79 | 3074 | if (system == WLAN_AUTH_OPEN) { |
73451379 DW |
3075 | if (trans_seq_no == 0x0002) { |
3076 | should_associate = 1; | |
3077 | } | |
4861dd79 | 3078 | } else if (system == WLAN_AUTH_SHARED_KEY) { |
73451379 | 3079 | if (trans_seq_no == 0x0002 && |
2c706002 | 3080 | auth->el_id == WLAN_EID_CHALLENGE) { |
73451379 DW |
3081 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
3082 | return; | |
3083 | } else if (trans_seq_no == 0x0004) { | |
3084 | should_associate = 1; | |
3085 | } | |
1da177e4 | 3086 | } |
4d791aad | 3087 | |
73451379 | 3088 | if (should_associate) { |
8830cb67 | 3089 | if (priv->station_was_associated) { |
1da177e4 LT |
3090 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); |
3091 | send_association_request(priv, 1); | |
3092 | return; | |
3093 | } else { | |
3094 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3095 | send_association_request(priv, 0); | |
3096 | return; | |
4d791aad | 3097 | } |
1da177e4 | 3098 | } |
4d791aad CP |
3099 | } |
3100 | ||
73451379 | 3101 | if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { |
d0c2912f DW |
3102 | /* Flip back and forth between WEP auth modes until the max |
3103 | * authentication tries has been exceeded. | |
3104 | */ | |
73451379 | 3105 | if (system == WLAN_AUTH_OPEN) { |
b16a228d | 3106 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
73451379 DW |
3107 | priv->exclude_unencrypted = 1; |
3108 | send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0); | |
3109 | return; | |
8830cb67 JD |
3110 | } else if (system == WLAN_AUTH_SHARED_KEY |
3111 | && priv->wep_is_on) { | |
d0c2912f DW |
3112 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
3113 | priv->exclude_unencrypted = 0; | |
3114 | send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0); | |
3115 | return; | |
b16a228d | 3116 | } else if (priv->connect_to_any_BSS) { |
3117 | int bss_index; | |
4d791aad | 3118 | |
b16a228d | 3119 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
4d791aad | 3120 | |
b16a228d | 3121 | if ((bss_index = retrieve_bss(priv)) != -1) { |
3122 | atmel_join_bss(priv, bss_index); | |
3123 | return; | |
3124 | } | |
1da177e4 LT |
3125 | } |
3126 | } | |
4d791aad | 3127 | |
1da177e4 LT |
3128 | priv->AuthenticationRequestRetryCnt = 0; |
3129 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3130 | priv->station_is_associated = 0; | |
3131 | } | |
3132 | ||
3133 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) | |
3134 | { | |
3135 | struct ass_resp_format { | |
0e5ce1f3 AV |
3136 | __le16 capability; |
3137 | __le16 status; | |
3138 | __le16 ass_id; | |
1da177e4 LT |
3139 | u8 el_id; |
3140 | u8 length; | |
3141 | u8 rates[4]; | |
3142 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; | |
4d791aad CP |
3143 | |
3144 | u16 status = le16_to_cpu(ass_resp->status); | |
1da177e4 | 3145 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
4d791aad CP |
3146 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
3147 | ||
9a6301c1 DW |
3148 | union iwreq_data wrqu; |
3149 | ||
1da177e4 LT |
3150 | if (frame_len < 8 + rates_len) |
3151 | return; | |
4d791aad | 3152 | |
4861dd79 DW |
3153 | if (status == WLAN_STATUS_SUCCESS) { |
3154 | if (subtype == IEEE80211_STYPE_ASSOC_RESP) | |
1da177e4 LT |
3155 | priv->AssociationRequestRetryCnt = 0; |
3156 | else | |
3157 | priv->ReAssociationRequestRetryCnt = 0; | |
4d791aad CP |
3158 | |
3159 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3160 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); | |
3161 | atmel_set_mib(priv, Phy_Mib_Type, | |
3162 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); | |
1da177e4 LT |
3163 | if (priv->power_mode == 0) { |
3164 | priv->listen_interval = 1; | |
4d791aad CP |
3165 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3166 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3167 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3168 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 LT |
3169 | } else { |
3170 | priv->listen_interval = 2; | |
4d791aad CP |
3171 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3172 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); | |
3173 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3174 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); | |
1da177e4 | 3175 | } |
4d791aad | 3176 | |
1da177e4 LT |
3177 | priv->station_is_associated = 1; |
3178 | priv->station_was_associated = 1; | |
3179 | atmel_enter_state(priv, STATION_STATE_READY); | |
9a6301c1 DW |
3180 | |
3181 | /* Send association event to userspace */ | |
3182 | wrqu.data.length = 0; | |
3183 | wrqu.data.flags = 0; | |
3184 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); | |
3185 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
3186 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
3187 | ||
1da177e4 LT |
3188 | return; |
3189 | } | |
4d791aad | 3190 | |
4861dd79 DW |
3191 | if (subtype == IEEE80211_STYPE_ASSOC_RESP && |
3192 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3193 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3194 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3195 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3196 | priv->AssociationRequestRetryCnt++; | |
3197 | send_association_request(priv, 0); | |
3198 | return; | |
3199 | } | |
4d791aad | 3200 | |
4861dd79 DW |
3201 | if (subtype == IEEE80211_STYPE_REASSOC_RESP && |
3202 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3203 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
13996ade | 3204 | priv->ReAssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
1da177e4 LT |
3205 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
3206 | priv->ReAssociationRequestRetryCnt++; | |
3207 | send_association_request(priv, 1); | |
3208 | return; | |
3209 | } | |
4d791aad | 3210 | |
1da177e4 LT |
3211 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
3212 | priv->station_is_associated = 0; | |
4d791aad CP |
3213 | |
3214 | if (priv->connect_to_any_BSS) { | |
1da177e4 LT |
3215 | int bss_index; |
3216 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3217 | |
3218 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 | 3219 | atmel_join_bss(priv, bss_index); |
1da177e4 LT |
3220 | } |
3221 | } | |
3222 | ||
2ed5ba89 | 3223 | static void atmel_join_bss(struct atmel_private *priv, int bss_index) |
1da177e4 LT |
3224 | { |
3225 | struct bss_info *bss = &priv->BSSinfo[bss_index]; | |
3226 | ||
d458cdf7 | 3227 | memcpy(priv->CurrentBSSID, bss->BSSID, ETH_ALEN); |
1da177e4 LT |
3228 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); |
3229 | ||
3230 | /* The WPA stuff cares about the current AP address */ | |
3231 | if (priv->use_wpa) | |
3232 | build_wpa_mib(priv); | |
4d791aad | 3233 | |
1da177e4 LT |
3234 | /* When switching to AdHoc turn OFF Power Save if needed */ |
3235 | ||
3236 | if (bss->BSStype == IW_MODE_ADHOC && | |
3237 | priv->operating_mode != IW_MODE_ADHOC && | |
3238 | priv->power_mode) { | |
3239 | priv->power_mode = 0; | |
3240 | priv->listen_interval = 1; | |
4d791aad CP |
3241 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3242 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3243 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3244 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 | 3245 | } |
4d791aad | 3246 | |
1da177e4 | 3247 | priv->operating_mode = bss->BSStype; |
4d791aad | 3248 | priv->channel = bss->channel & 0x7f; |
1da177e4 | 3249 | priv->beacon_period = bss->beacon_period; |
4d791aad | 3250 | |
1da177e4 LT |
3251 | if (priv->preamble != bss->preamble) { |
3252 | priv->preamble = bss->preamble; | |
4d791aad CP |
3253 | atmel_set_mib8(priv, Local_Mib_Type, |
3254 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); | |
1da177e4 | 3255 | } |
4d791aad | 3256 | |
1da177e4 LT |
3257 | if (!priv->wep_is_on && bss->UsingWEP) { |
3258 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3259 | priv->station_is_associated = 0; | |
3260 | return; | |
3261 | } | |
4d791aad | 3262 | |
1da177e4 LT |
3263 | if (priv->wep_is_on && !bss->UsingWEP) { |
3264 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3265 | priv->station_is_associated = 0; | |
3266 | return; | |
3267 | } | |
3268 | ||
3269 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 3270 | |
1da177e4 LT |
3271 | if (priv->operating_mode == IW_MODE_INFRA) |
3272 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 3273 | else |
1da177e4 LT |
3274 | join(priv, BSS_TYPE_AD_HOC); |
3275 | } | |
3276 | ||
1da177e4 LT |
3277 | static void restart_search(struct atmel_private *priv) |
3278 | { | |
3279 | int bss_index; | |
4d791aad | 3280 | |
1da177e4 LT |
3281 | if (!priv->connect_to_any_BSS) { |
3282 | atmel_scan(priv, 1); | |
3283 | } else { | |
3284 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3285 | |
3286 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 LT |
3287 | atmel_join_bss(priv, bss_index); |
3288 | else | |
3289 | atmel_scan(priv, 0); | |
4d791aad CP |
3290 | } |
3291 | } | |
1da177e4 LT |
3292 | |
3293 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) | |
3294 | { | |
3295 | u8 old = priv->wstats.qual.level; | |
3296 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ | |
3297 | ||
3298 | switch (priv->firmware_type) { | |
8830cb67 JD |
3299 | case ATMEL_FW_TYPE_502E: |
3300 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ | |
3301 | break; | |
3302 | default: | |
3303 | break; | |
1da177e4 LT |
3304 | } |
3305 | ||
3306 | rssi = rssi * 100 / max_rssi; | |
4d791aad CP |
3307 | if ((rssi + old) % 2) |
3308 | priv->wstats.qual.level = (rssi + old) / 2 + 1; | |
1da177e4 | 3309 | else |
4d791aad | 3310 | priv->wstats.qual.level = (rssi + old) / 2; |
1da177e4 LT |
3311 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
3312 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; | |
3313 | } | |
3314 | ||
3315 | static void atmel_smooth_qual(struct atmel_private *priv) | |
3316 | { | |
4d791aad | 3317 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
1da177e4 LT |
3318 | while (time_diff--) { |
3319 | priv->last_qual += HZ; | |
4d791aad CP |
3320 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
3321 | priv->wstats.qual.qual += | |
1da177e4 LT |
3322 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
3323 | priv->beacons_this_sec = 0; | |
3324 | } | |
3325 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; | |
3326 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; | |
3327 | } | |
3328 | ||
3dbda77e | 3329 | /* deals with incoming management frames. */ |
4d791aad | 3330 | static void atmel_management_frame(struct atmel_private *priv, |
2c706002 | 3331 | struct ieee80211_hdr *header, |
4d791aad | 3332 | u16 frame_len, u8 rssi) |
1da177e4 LT |
3333 | { |
3334 | u16 subtype; | |
4d791aad | 3335 | |
2c706002 | 3336 | subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE; |
4d791aad | 3337 | switch (subtype) { |
4861dd79 DW |
3338 | case IEEE80211_STYPE_BEACON: |
3339 | case IEEE80211_STYPE_PROBE_RESP: | |
4d791aad | 3340 | |
1da177e4 LT |
3341 | /* beacon frame has multiple variable-length fields - |
3342 | never let an engineer loose with a data structure design. */ | |
3343 | { | |
3344 | struct beacon_format { | |
0e5ce1f3 AV |
3345 | __le64 timestamp; |
3346 | __le16 interval; | |
3347 | __le16 capability; | |
1da177e4 LT |
3348 | u8 ssid_el_id; |
3349 | u8 ssid_length; | |
3350 | /* ssid here */ | |
3351 | u8 rates_el_id; | |
3352 | u8 rates_length; | |
3353 | /* rates here */ | |
3354 | u8 ds_el_id; | |
3355 | u8 ds_length; | |
3356 | /* ds here */ | |
3357 | } *beacon = (struct beacon_format *)priv->rx_buf; | |
4d791aad | 3358 | |
1da177e4 LT |
3359 | u8 channel, rates_length, ssid_length; |
3360 | u64 timestamp = le64_to_cpu(beacon->timestamp); | |
3361 | u16 beacon_interval = le16_to_cpu(beacon->interval); | |
3362 | u16 capability = le16_to_cpu(beacon->capability); | |
3363 | u8 *beaconp = priv->rx_buf; | |
3364 | ssid_length = beacon->ssid_length; | |
3365 | /* this blows chunks. */ | |
4d791aad | 3366 | if (frame_len < 14 || frame_len < ssid_length + 15) |
1da177e4 LT |
3367 | return; |
3368 | rates_length = beaconp[beacon->ssid_length + 15]; | |
3369 | if (frame_len < ssid_length + rates_length + 18) | |
3370 | return; | |
3371 | if (ssid_length > MAX_SSID_LENGTH) | |
3372 | return; | |
3373 | channel = beaconp[ssid_length + rates_length + 18]; | |
4d791aad | 3374 | |
1da177e4 LT |
3375 | if (priv->station_state == STATION_STATE_READY) { |
3376 | smooth_rssi(priv, rssi); | |
4d791aad | 3377 | if (is_frame_from_current_bss(priv, header)) { |
1da177e4 LT |
3378 | priv->beacons_this_sec++; |
3379 | atmel_smooth_qual(priv); | |
3380 | if (priv->last_beacon_timestamp) { | |
3381 | /* Note truncate this to 32 bits - kernel can't divide a long long */ | |
3382 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; | |
3383 | int beacons = beacon_delay / (beacon_interval * 1000); | |
3384 | if (beacons > 1) | |
3385 | priv->wstats.miss.beacon += beacons - 1; | |
3386 | } | |
3387 | priv->last_beacon_timestamp = timestamp; | |
3388 | handle_beacon_probe(priv, capability, channel); | |
3389 | } | |
3390 | } | |
4d791aad CP |
3391 | |
3392 | if (priv->station_state == STATION_STATE_SCANNING) | |
3393 | store_bss_info(priv, header, capability, | |
3394 | beacon_interval, channel, rssi, | |
3395 | ssid_length, | |
3396 | &beacon->rates_el_id, | |
4861dd79 | 3397 | subtype == IEEE80211_STYPE_BEACON); |
1da177e4 LT |
3398 | } |
3399 | break; | |
4d791aad | 3400 | |
4861dd79 | 3401 | case IEEE80211_STYPE_AUTH: |
1da177e4 LT |
3402 | |
3403 | if (priv->station_state == STATION_STATE_AUTHENTICATING) | |
3404 | authenticate(priv, frame_len); | |
4d791aad | 3405 | |
1da177e4 | 3406 | break; |
4d791aad | 3407 | |
4861dd79 DW |
3408 | case IEEE80211_STYPE_ASSOC_RESP: |
3409 | case IEEE80211_STYPE_REASSOC_RESP: | |
4d791aad CP |
3410 | |
3411 | if (priv->station_state == STATION_STATE_ASSOCIATING || | |
1da177e4 LT |
3412 | priv->station_state == STATION_STATE_REASSOCIATING) |
3413 | associate(priv, frame_len, subtype); | |
4d791aad | 3414 | |
1da177e4 LT |
3415 | break; |
3416 | ||
4861dd79 | 3417 | case IEEE80211_STYPE_DISASSOC: |
4d791aad CP |
3418 | if (priv->station_is_associated && |
3419 | priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
3420 | is_frame_from_current_bss(priv, header)) { |
3421 | priv->station_was_associated = 0; | |
3422 | priv->station_is_associated = 0; | |
4d791aad | 3423 | |
1da177e4 LT |
3424 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
3425 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3426 | } | |
4d791aad | 3427 | |
1da177e4 LT |
3428 | break; |
3429 | ||
4861dd79 | 3430 | case IEEE80211_STYPE_DEAUTH: |
1da177e4 LT |
3431 | if (priv->operating_mode == IW_MODE_INFRA && |
3432 | is_frame_from_current_bss(priv, header)) { | |
3433 | priv->station_was_associated = 0; | |
3434 | ||
3435 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
3436 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3437 | } | |
4d791aad | 3438 | |
1da177e4 LT |
3439 | break; |
3440 | } | |
3441 | } | |
3442 | ||
3443 | /* run when timer expires */ | |
3444 | static void atmel_management_timer(u_long a) | |
3445 | { | |
4d791aad CP |
3446 | struct net_device *dev = (struct net_device *) a; |
3447 | struct atmel_private *priv = netdev_priv(dev); | |
3448 | unsigned long flags; | |
1da177e4 | 3449 | |
4d791aad CP |
3450 | /* Check if the card has been yanked. */ |
3451 | if (priv->card && priv->present_callback && | |
3452 | !(*priv->present_callback)(priv->card)) | |
3453 | return; | |
1da177e4 | 3454 | |
4d791aad CP |
3455 | spin_lock_irqsave(&priv->irqlock, flags); |
3456 | ||
3457 | switch (priv->station_state) { | |
1da177e4 | 3458 | |
4d791aad CP |
3459 | case STATION_STATE_AUTHENTICATING: |
3460 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { | |
3461 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3462 | priv->station_is_associated = 0; | |
3463 | priv->AuthenticationRequestRetryCnt = 0; | |
3464 | restart_search(priv); | |
3465 | } else { | |
4861dd79 | 3466 | int auth = WLAN_AUTH_OPEN; |
4d791aad CP |
3467 | priv->AuthenticationRequestRetryCnt++; |
3468 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
3469 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
73451379 | 3470 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3471 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3472 | send_authentication_request(priv, auth, NULL, 0); |
4d791aad | 3473 | } |
1da177e4 | 3474 | break; |
4d791aad CP |
3475 | |
3476 | case STATION_STATE_ASSOCIATING: | |
3477 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3478 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3479 | priv->station_is_associated = 0; | |
3480 | priv->AssociationRequestRetryCnt = 0; | |
3481 | restart_search(priv); | |
3482 | } else { | |
3483 | priv->AssociationRequestRetryCnt++; | |
3484 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3485 | send_association_request(priv, 0); | |
3486 | } | |
1da177e4 | 3487 | break; |
4d791aad CP |
3488 | |
3489 | case STATION_STATE_REASSOCIATING: | |
3490 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3491 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3492 | priv->station_is_associated = 0; | |
3493 | priv->ReAssociationRequestRetryCnt = 0; | |
3494 | restart_search(priv); | |
3495 | } else { | |
3496 | priv->ReAssociationRequestRetryCnt++; | |
3497 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3498 | send_association_request(priv, 1); | |
3499 | } | |
3500 | break; | |
3501 | ||
3502 | default: | |
3503 | break; | |
3504 | } | |
3505 | ||
3506 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
1da177e4 | 3507 | } |
4d791aad | 3508 | |
1da177e4 LT |
3509 | static void atmel_command_irq(struct atmel_private *priv) |
3510 | { | |
3511 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
3512 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); | |
3513 | int fast_scan; | |
3a1af6ff | 3514 | union iwreq_data wrqu; |
4d791aad CP |
3515 | |
3516 | if (status == CMD_STATUS_IDLE || | |
1da177e4 LT |
3517 | status == CMD_STATUS_IN_PROGRESS) |
3518 | return; | |
3519 | ||
8830cb67 | 3520 | switch (command) { |
1da177e4 LT |
3521 | case CMD_Start: |
3522 | if (status == CMD_STATUS_COMPLETE) { | |
3523 | priv->station_was_associated = priv->station_is_associated; | |
3524 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, | |
3525 | (u8 *)priv->CurrentBSSID, 6); | |
3526 | atmel_enter_state(priv, STATION_STATE_READY); | |
4d791aad | 3527 | } |
1da177e4 | 3528 | break; |
4d791aad | 3529 | |
1da177e4 LT |
3530 | case CMD_Scan: |
3531 | fast_scan = priv->fast_scan; | |
3532 | priv->fast_scan = 0; | |
4d791aad | 3533 | |
1da177e4 LT |
3534 | if (status != CMD_STATUS_COMPLETE) { |
3535 | atmel_scan(priv, 1); | |
3536 | } else { | |
3537 | int bss_index = retrieve_bss(priv); | |
3a1af6ff | 3538 | int notify_scan_complete = 1; |
1da177e4 LT |
3539 | if (bss_index != -1) { |
3540 | atmel_join_bss(priv, bss_index); | |
4d791aad | 3541 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
1da177e4 LT |
3542 | priv->SSID_size != 0) { |
3543 | start(priv, BSS_TYPE_AD_HOC); | |
3544 | } else { | |
3545 | priv->fast_scan = !fast_scan; | |
3546 | atmel_scan(priv, 1); | |
3a1af6ff | 3547 | notify_scan_complete = 0; |
1da177e4 LT |
3548 | } |
3549 | priv->site_survey_state = SITE_SURVEY_COMPLETED; | |
3a1af6ff DW |
3550 | if (notify_scan_complete) { |
3551 | wrqu.data.length = 0; | |
3552 | wrqu.data.flags = 0; | |
3553 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
3554 | } | |
1da177e4 LT |
3555 | } |
3556 | break; | |
4d791aad | 3557 | |
1da177e4 LT |
3558 | case CMD_SiteSurvey: |
3559 | priv->fast_scan = 0; | |
4d791aad | 3560 | |
1da177e4 LT |
3561 | if (status != CMD_STATUS_COMPLETE) |
3562 | return; | |
4d791aad | 3563 | |
1da177e4 LT |
3564 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
3565 | if (priv->station_is_associated) { | |
4d791aad | 3566 | atmel_enter_state(priv, STATION_STATE_READY); |
3a1af6ff DW |
3567 | wrqu.data.length = 0; |
3568 | wrqu.data.flags = 0; | |
3569 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
1da177e4 LT |
3570 | } else { |
3571 | atmel_scan(priv, 1); | |
3572 | } | |
3573 | break; | |
3574 | ||
3575 | case CMD_Join: | |
3576 | if (status == CMD_STATUS_COMPLETE) { | |
3577 | if (priv->operating_mode == IW_MODE_ADHOC) { | |
3578 | priv->station_was_associated = priv->station_is_associated; | |
3579 | atmel_enter_state(priv, STATION_STATE_READY); | |
3580 | } else { | |
4861dd79 | 3581 | int auth = WLAN_AUTH_OPEN; |
1da177e4 LT |
3582 | priv->AuthenticationRequestRetryCnt = 0; |
3583 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); | |
4d791aad | 3584 | |
1da177e4 LT |
3585 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
3586 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
73451379 | 3587 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3588 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3589 | send_authentication_request(priv, auth, NULL, 0); |
1da177e4 LT |
3590 | } |
3591 | return; | |
3592 | } | |
4d791aad | 3593 | |
1da177e4 | 3594 | atmel_scan(priv, 1); |
1da177e4 LT |
3595 | } |
3596 | } | |
3597 | ||
3598 | static int atmel_wakeup_firmware(struct atmel_private *priv) | |
3599 | { | |
3600 | struct host_info_struct *iface = &priv->host_info; | |
3601 | u16 mr1, mr3; | |
3602 | int i; | |
3603 | ||
3604 | if (priv->card_type == CARD_TYPE_SPI_FLASH) | |
3605 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
4d791aad | 3606 | |
1da177e4 LT |
3607 | /* wake up on-board processor */ |
3608 | atmel_clear_gcr(priv->dev, 0x0040); | |
3609 | atmel_write16(priv->dev, BSR, BSS_SRAM); | |
4d791aad | 3610 | |
1da177e4 LT |
3611 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
3612 | mdelay(100); | |
3613 | ||
3614 | /* and wait for it */ | |
4d791aad | 3615 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
1da177e4 LT |
3616 | mr1 = atmel_read16(priv->dev, MR1); |
3617 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3618 | |
3619 | if (mr3 & MAC_BOOT_COMPLETE) | |
1da177e4 LT |
3620 | break; |
3621 | if (mr1 & MAC_BOOT_COMPLETE && | |
3622 | priv->bus_type == BUS_TYPE_PCCARD) | |
3623 | break; | |
3624 | } | |
3625 | ||
3626 | if (i == 0) { | |
3627 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); | |
3c34a5d8 | 3628 | return -EIO; |
1da177e4 | 3629 | } |
4d791aad | 3630 | |
1da177e4 LT |
3631 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
3632 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); | |
3c34a5d8 | 3633 | return -ENODEV; |
1da177e4 | 3634 | } |
4d791aad CP |
3635 | |
3636 | /* now check for completion of MAC initialization through | |
3637 | the FunCtrl field of the IFACE, poll MR1 to detect completion of | |
3638 | MAC initialization, check completion status, set interrupt mask, | |
3639 | enables interrupts and calls Tx and Rx initialization functions */ | |
3640 | ||
1da177e4 | 3641 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE); |
4d791aad CP |
3642 | |
3643 | for (i = LOOP_RETRY_LIMIT; i; i--) { | |
1da177e4 LT |
3644 | mr1 = atmel_read16(priv->dev, MR1); |
3645 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3646 | |
3647 | if (mr3 & MAC_INIT_COMPLETE) | |
1da177e4 LT |
3648 | break; |
3649 | if (mr1 & MAC_INIT_COMPLETE && | |
3650 | priv->bus_type == BUS_TYPE_PCCARD) | |
3651 | break; | |
3652 | } | |
4d791aad | 3653 | |
1da177e4 | 3654 | if (i == 0) { |
4d791aad CP |
3655 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
3656 | priv->dev->name); | |
3c34a5d8 | 3657 | return -EIO; |
1da177e4 | 3658 | } |
4d791aad | 3659 | |
1da177e4 LT |
3660 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
3661 | if ((mr3 & MAC_INIT_COMPLETE) && | |
3662 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { | |
3663 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); | |
3c34a5d8 | 3664 | return -EIO; |
1da177e4 LT |
3665 | } |
3666 | if ((mr1 & MAC_INIT_COMPLETE) && | |
3667 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { | |
3668 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); | |
3c34a5d8 | 3669 | return -EIO; |
1da177e4 LT |
3670 | } |
3671 | ||
4d791aad | 3672 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
1da177e4 | 3673 | priv->host_info_base, sizeof(*iface)); |
4d791aad | 3674 | |
1da177e4 LT |
3675 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
3676 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); | |
3677 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); | |
3678 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); | |
3679 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); | |
3680 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); | |
3681 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); | |
3682 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); | |
3683 | iface->build_version = le16_to_cpu(iface->build_version); | |
3684 | iface->command_pos = le16_to_cpu(iface->command_pos); | |
3685 | iface->major_version = le16_to_cpu(iface->major_version); | |
3686 | iface->minor_version = le16_to_cpu(iface->minor_version); | |
3687 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); | |
3688 | iface->mac_status = le16_to_cpu(iface->mac_status); | |
3689 | ||
3c34a5d8 | 3690 | return 0; |
1da177e4 LT |
3691 | } |
3692 | ||
3693 | /* determine type of memory and MAC address */ | |
3694 | static int probe_atmel_card(struct net_device *dev) | |
3695 | { | |
3696 | int rc = 0; | |
3697 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 3698 | |
1da177e4 | 3699 | /* reset pccard */ |
4d791aad | 3700 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3701 | atmel_write16(dev, GCR, 0x0060); |
4d791aad | 3702 | |
1da177e4 LT |
3703 | atmel_write16(dev, GCR, 0x0040); |
3704 | mdelay(500); | |
4d791aad | 3705 | |
1da177e4 | 3706 | if (atmel_read16(dev, MR2) == 0) { |
4d791aad | 3707 | /* No stored firmware so load a small stub which just |
1da177e4 LT |
3708 | tells us the MAC address */ |
3709 | int i; | |
3710 | priv->card_type = CARD_TYPE_EEPROM; | |
3711 | atmel_write16(dev, BSR, BSS_IRAM); | |
3712 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); | |
3713 | atmel_set_gcr(dev, GCR_REMAP); | |
3714 | atmel_clear_gcr(priv->dev, 0x0040); | |
3715 | atmel_write16(dev, BSR, BSS_SRAM); | |
4d791aad | 3716 | for (i = LOOP_RETRY_LIMIT; i; i--) |
1da177e4 LT |
3717 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
3718 | break; | |
3719 | if (i == 0) { | |
3720 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); | |
3721 | } else { | |
3722 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); | |
3723 | /* got address, now squash it again until the network | |
3724 | interface is opened */ | |
4d791aad | 3725 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3726 | atmel_write16(dev, GCR, 0x0060); |
3727 | atmel_write16(dev, GCR, 0x0040); | |
3728 | rc = 1; | |
3729 | } | |
3730 | } else if (atmel_read16(dev, MR4) == 0) { | |
3731 | /* Mac address easy in this case. */ | |
3732 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; | |
4d791aad | 3733 | atmel_write16(dev, BSR, 1); |
1da177e4 LT |
3734 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
3735 | atmel_write16(dev, BSR, 0x200); | |
3736 | rc = 1; | |
3737 | } else { | |
3738 | /* Standard firmware in flash, boot it up and ask | |
3739 | for the Mac Address */ | |
3740 | priv->card_type = CARD_TYPE_SPI_FLASH; | |
3c34a5d8 | 3741 | if (atmel_wakeup_firmware(priv) == 0) { |
1da177e4 | 3742 | atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6); |
4d791aad | 3743 | |
1da177e4 LT |
3744 | /* got address, now squash it again until the network |
3745 | interface is opened */ | |
4d791aad | 3746 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3747 | atmel_write16(dev, GCR, 0x0060); |
3748 | atmel_write16(dev, GCR, 0x0040); | |
3749 | rc = 1; | |
3750 | } | |
3751 | } | |
4d791aad | 3752 | |
1da177e4 LT |
3753 | if (rc) { |
3754 | if (dev->dev_addr[0] == 0xFF) { | |
3370a895 JP |
3755 | static const u8 default_mac[] = { |
3756 | 0x00, 0x04, 0x25, 0x00, 0x00, 0x00 | |
3757 | }; | |
1da177e4 | 3758 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); |
d458cdf7 | 3759 | memcpy(dev->dev_addr, default_mac, ETH_ALEN); |
1da177e4 | 3760 | } |
1da177e4 | 3761 | } |
4d791aad | 3762 | |
1da177e4 LT |
3763 | return rc; |
3764 | } | |
3765 | ||
1da177e4 LT |
3766 | /* Move the encyption information on the MIB structure. |
3767 | This routine is for the pre-WPA firmware: later firmware has | |
3768 | a different format MIB and a different routine. */ | |
4d791aad | 3769 | static void build_wep_mib(struct atmel_private *priv) |
1da177e4 LT |
3770 | { |
3771 | struct { /* NB this is matched to the hardware, don't change. */ | |
4d791aad | 3772 | u8 wep_is_on; |
1da177e4 LT |
3773 | u8 default_key; /* 0..3 */ |
3774 | u8 reserved; | |
3775 | u8 exclude_unencrypted; | |
4d791aad | 3776 | |
1da177e4 LT |
3777 | u32 WEPICV_error_count; |
3778 | u32 WEP_excluded_count; | |
4d791aad | 3779 | |
1da177e4 | 3780 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
4d791aad CP |
3781 | u8 encryption_level; /* 0, 1, 2 */ |
3782 | u8 reserved2[3]; | |
1da177e4 LT |
3783 | } mib; |
3784 | int i; | |
3785 | ||
3786 | mib.wep_is_on = priv->wep_is_on; | |
3787 | if (priv->wep_is_on) { | |
3788 | if (priv->wep_key_len[priv->default_key] > 5) | |
3789 | mib.encryption_level = 2; | |
3790 | else | |
4d791aad | 3791 | mib.encryption_level = 1; |
1da177e4 LT |
3792 | } else { |
3793 | mib.encryption_level = 0; | |
3794 | } | |
3795 | ||
3796 | mib.default_key = priv->default_key; | |
3797 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
4d791aad CP |
3798 | |
3799 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) | |
1da177e4 | 3800 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
4d791aad | 3801 | |
1da177e4 LT |
3802 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3803 | } | |
3804 | ||
3805 | static void build_wpa_mib(struct atmel_private *priv) | |
3806 | { | |
4d791aad | 3807 | /* This is for the later (WPA enabled) firmware. */ |
1da177e4 LT |
3808 | |
3809 | struct { /* NB this is matched to the hardware, don't change. */ | |
3810 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
d458cdf7 | 3811 | u8 receiver_address[ETH_ALEN]; |
4d791aad | 3812 | u8 wep_is_on; |
1da177e4 LT |
3813 | u8 default_key; /* 0..3 */ |
3814 | u8 group_key; | |
3815 | u8 exclude_unencrypted; | |
3816 | u8 encryption_type; | |
3817 | u8 reserved; | |
4d791aad | 3818 | |
1da177e4 LT |
3819 | u32 WEPICV_error_count; |
3820 | u32 WEP_excluded_count; | |
4d791aad | 3821 | |
1da177e4 LT |
3822 | u8 key_RSC[4][8]; |
3823 | } mib; | |
4d791aad | 3824 | |
1da177e4 LT |
3825 | int i; |
3826 | ||
3827 | mib.wep_is_on = priv->wep_is_on; | |
3828 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
d458cdf7 | 3829 | memcpy(mib.receiver_address, priv->CurrentBSSID, ETH_ALEN); |
4d791aad | 3830 | |
1da177e4 LT |
3831 | /* zero all the keys before adding in valid ones. */ |
3832 | memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value)); | |
4d791aad | 3833 | |
1da177e4 | 3834 | if (priv->wep_is_on) { |
4d791aad CP |
3835 | /* There's a comment in the Atmel code to the effect that this |
3836 | is only valid when still using WEP, it may need to be set to | |
3837 | something to use WPA */ | |
1da177e4 | 3838 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
4d791aad | 3839 | |
1da177e4 LT |
3840 | mib.default_key = mib.group_key = 255; |
3841 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { | |
3842 | if (priv->wep_key_len[i] > 0) { | |
3843 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); | |
3844 | if (i == priv->default_key) { | |
3845 | mib.default_key = i; | |
3846 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; | |
4d791aad | 3847 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite; |
1da177e4 LT |
3848 | } else { |
3849 | mib.group_key = i; | |
3850 | priv->group_cipher_suite = priv->pairwise_cipher_suite; | |
8830cb67 | 3851 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; |
4d791aad | 3852 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite; |
1da177e4 LT |
3853 | } |
3854 | } | |
3855 | } | |
3856 | if (mib.default_key == 255) | |
3857 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; | |
3858 | if (mib.group_key == 255) | |
3859 | mib.group_key = mib.default_key; | |
4d791aad | 3860 | |
1da177e4 | 3861 | } |
4d791aad | 3862 | |
1da177e4 LT |
3863 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3864 | } | |
4d791aad CP |
3865 | |
3866 | static int reset_atmel_card(struct net_device *dev) | |
1da177e4 LT |
3867 | { |
3868 | /* do everything necessary to wake up the hardware, including | |
3869 | waiting for the lightning strike and throwing the knife switch.... | |
3870 | ||
4d791aad | 3871 | set all the Mib values which matter in the card to match |
1da177e4 LT |
3872 | their settings in the atmel_private structure. Some of these |
3873 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) | |
3874 | can only be changed by tearing down the world and coming back through | |
3875 | here. | |
3876 | ||
4d791aad CP |
3877 | This routine is also responsible for initialising some |
3878 | hardware-specific fields in the atmel_private structure, | |
25985edc | 3879 | including a copy of the firmware's hostinfo structure |
d535295b | 3880 | which is the route into the rest of the firmware datastructures. */ |
1da177e4 LT |
3881 | |
3882 | struct atmel_private *priv = netdev_priv(dev); | |
3883 | u8 configuration; | |
9a6301c1 | 3884 | int old_state = priv->station_state; |
3c34a5d8 | 3885 | int err = 0; |
4d791aad | 3886 | |
1da177e4 LT |
3887 | /* data to add to the firmware names, in priority order |
3888 | this implemenents firmware versioning */ | |
4d791aad | 3889 | |
1da177e4 LT |
3890 | static char *firmware_modifier[] = { |
3891 | "-wpa", | |
3892 | "", | |
3893 | NULL | |
3894 | }; | |
4d791aad | 3895 | |
1da177e4 | 3896 | /* reset pccard */ |
4d791aad | 3897 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3898 | atmel_write16(priv->dev, GCR, 0x0060); |
4d791aad | 3899 | |
1da177e4 LT |
3900 | /* stop card , disable interrupts */ |
3901 | atmel_write16(priv->dev, GCR, 0x0040); | |
4d791aad | 3902 | |
1da177e4 LT |
3903 | if (priv->card_type == CARD_TYPE_EEPROM) { |
3904 | /* copy in firmware if needed */ | |
3905 | const struct firmware *fw_entry = NULL; | |
2f26e8af | 3906 | const unsigned char *fw; |
1da177e4 LT |
3907 | int len = priv->firmware_length; |
3908 | if (!(fw = priv->firmware)) { | |
3909 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { | |
3910 | if (strlen(priv->firmware_id) == 0) { | |
3911 | printk(KERN_INFO | |
3912 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", | |
3913 | dev->name); | |
3914 | printk(KERN_INFO | |
4d791aad | 3915 | "%s: if not, use the firmware= module parameter.\n", |
1da177e4 LT |
3916 | dev->name); |
3917 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); | |
3918 | } | |
3c34a5d8 DW |
3919 | err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev); |
3920 | if (err != 0) { | |
4d791aad CP |
3921 | printk(KERN_ALERT |
3922 | "%s: firmware %s is missing, cannot continue.\n", | |
1da177e4 | 3923 | dev->name, priv->firmware_id); |
3c34a5d8 | 3924 | return err; |
1da177e4 LT |
3925 | } |
3926 | } else { | |
3927 | int fw_index = 0; | |
3928 | int success = 0; | |
3929 | ||
3930 | /* get firmware filename entry based on firmware type ID */ | |
3931 | while (fw_table[fw_index].fw_type != priv->firmware_type | |
3932 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) | |
3933 | fw_index++; | |
4d791aad | 3934 | |
1da177e4 LT |
3935 | /* construct the actual firmware file name */ |
3936 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { | |
3937 | int i; | |
3938 | for (i = 0; firmware_modifier[i]; i++) { | |
3939 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, | |
3940 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); | |
3941 | priv->firmware_id[31] = '\0'; | |
3942 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { | |
3943 | success = 1; | |
3944 | break; | |
3945 | } | |
3946 | } | |
3947 | } | |
3948 | if (!success) { | |
4d791aad CP |
3949 | printk(KERN_ALERT |
3950 | "%s: firmware %s is missing, cannot start.\n", | |
1da177e4 LT |
3951 | dev->name, priv->firmware_id); |
3952 | priv->firmware_id[0] = '\0'; | |
3c34a5d8 | 3953 | return -ENOENT; |
1da177e4 LT |
3954 | } |
3955 | } | |
4d791aad | 3956 | |
1da177e4 LT |
3957 | fw = fw_entry->data; |
3958 | len = fw_entry->size; | |
3959 | } | |
4d791aad | 3960 | |
8830cb67 | 3961 | if (len <= 0x6000) { |
1da177e4 LT |
3962 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
3963 | atmel_copy_to_card(priv->dev, 0, fw, len); | |
3964 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
3965 | } else { | |
4d791aad | 3966 | /* Remap */ |
1da177e4 LT |
3967 | atmel_set_gcr(priv->dev, GCR_REMAP); |
3968 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3969 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); | |
3970 | atmel_write16(priv->dev, BSR, 0x2ff); | |
3971 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); | |
3972 | } | |
3973 | ||
74033025 | 3974 | release_firmware(fw_entry); |
1da177e4 LT |
3975 | } |
3976 | ||
3c34a5d8 DW |
3977 | err = atmel_wakeup_firmware(priv); |
3978 | if (err != 0) | |
3979 | return err; | |
1da177e4 LT |
3980 | |
3981 | /* Check the version and set the correct flag for wpa stuff, | |
3982 | old and new firmware is incompatible. | |
3983 | The pre-wpa 3com firmware reports major version 5, | |
3984 | the wpa 3com firmware is major version 4 and doesn't need | |
3985 | the 3com broken-ness filter. */ | |
3986 | priv->use_wpa = (priv->host_info.major_version == 4); | |
3987 | priv->radio_on_broken = (priv->host_info.major_version == 5); | |
4d791aad | 3988 | |
8830cb67 | 3989 | /* unmask all irq sources */ |
1da177e4 | 3990 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); |
4d791aad | 3991 | |
1da177e4 LT |
3992 | /* int Tx system and enable Tx */ |
3993 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); | |
3994 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); | |
3995 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); | |
3996 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); | |
3997 | ||
4d791aad CP |
3998 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
3999 | priv->tx_desc_head = 0; | |
4000 | priv->tx_desc_tail = 0; | |
1da177e4 LT |
4001 | priv->tx_desc_previous = 0; |
4002 | priv->tx_free_mem = priv->host_info.tx_buff_size; | |
4d791aad CP |
4003 | priv->tx_buff_head = 0; |
4004 | priv->tx_buff_tail = 0; | |
4005 | ||
4006 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
4007 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 LT |
4008 | configuration | FUNC_CTRL_TxENABLE); |
4009 | ||
4010 | /* init Rx system and enable */ | |
4011 | priv->rx_desc_head = 0; | |
4d791aad CP |
4012 | |
4013 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
4014 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 | 4015 | configuration | FUNC_CTRL_RxENABLE); |
4d791aad | 4016 | |
1da177e4 | 4017 | if (!priv->radio_on_broken) { |
4d791aad | 4018 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
1da177e4 | 4019 | CMD_STATUS_REJECTED_RADIO_OFF) { |
3c34a5d8 | 4020 | printk(KERN_INFO "%s: cannot turn the radio on.\n", |
1da177e4 | 4021 | dev->name); |
8830cb67 | 4022 | return -EIO; |
1da177e4 LT |
4023 | } |
4024 | } | |
4d791aad | 4025 | |
1da177e4 LT |
4026 | /* set up enough MIB values to run. */ |
4027 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); | |
4028 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); | |
4029 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); | |
4030 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); | |
4031 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); | |
4032 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); | |
4033 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble); | |
4d791aad | 4034 | atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS, |
1da177e4 LT |
4035 | priv->dev->dev_addr, 6); |
4036 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
4037 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
4038 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); | |
4039 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); | |
4040 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); | |
4041 | if (priv->use_wpa) | |
4042 | build_wpa_mib(priv); | |
4043 | else | |
4044 | build_wep_mib(priv); | |
4d791aad | 4045 | |
8830cb67 | 4046 | if (old_state == STATION_STATE_READY) { |
9a6301c1 DW |
4047 | union iwreq_data wrqu; |
4048 | ||
4049 | wrqu.data.length = 0; | |
4050 | wrqu.data.flags = 0; | |
4051 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
93803b33 | 4052 | eth_zero_addr(wrqu.ap_addr.sa_data); |
9a6301c1 DW |
4053 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); |
4054 | } | |
4055 | ||
3c34a5d8 | 4056 | return 0; |
1da177e4 LT |
4057 | } |
4058 | ||
4d791aad CP |
4059 | static void atmel_send_command(struct atmel_private *priv, int command, |
4060 | void *cmd, int cmd_size) | |
1da177e4 LT |
4061 | { |
4062 | if (cmd) | |
4d791aad | 4063 | atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET), |
1da177e4 | 4064 | cmd, cmd_size); |
4d791aad | 4065 | |
1da177e4 LT |
4066 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
4067 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); | |
4068 | } | |
4d791aad CP |
4069 | |
4070 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
4071 | void *cmd, int cmd_size) | |
1da177e4 LT |
4072 | { |
4073 | int i, status; | |
4d791aad | 4074 | |
1da177e4 | 4075 | atmel_send_command(priv, command, cmd, cmd_size); |
4d791aad | 4076 | |
1da177e4 LT |
4077 | for (i = 5000; i; i--) { |
4078 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
4d791aad | 4079 | if (status != CMD_STATUS_IDLE && |
1da177e4 LT |
4080 | status != CMD_STATUS_IN_PROGRESS) |
4081 | break; | |
4082 | udelay(20); | |
4083 | } | |
4d791aad | 4084 | |
1da177e4 LT |
4085 | if (i == 0) { |
4086 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); | |
4087 | status = CMD_STATUS_HOST_ERROR; | |
4d791aad | 4088 | } else { |
1da177e4 LT |
4089 | if (command != CMD_EnableRadio) |
4090 | status = CMD_STATUS_COMPLETE; | |
4091 | } | |
4d791aad | 4092 | |
1da177e4 LT |
4093 | return status; |
4094 | } | |
4095 | ||
4096 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) | |
4097 | { | |
4098 | struct get_set_mib m; | |
4099 | m.type = type; | |
4100 | m.size = 1; | |
4101 | m.index = index; | |
4102 | ||
4103 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4104 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); | |
4105 | } | |
4106 | ||
4107 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) | |
4108 | { | |
4109 | struct get_set_mib m; | |
4110 | m.type = type; | |
4111 | m.size = 1; | |
4112 | m.index = index; | |
4113 | m.data[0] = data; | |
4114 | ||
4115 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4116 | } | |
4117 | ||
4d791aad CP |
4118 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
4119 | u16 data) | |
1da177e4 LT |
4120 | { |
4121 | struct get_set_mib m; | |
4122 | m.type = type; | |
4123 | m.size = 2; | |
4124 | m.index = index; | |
4125 | m.data[0] = data; | |
4126 | m.data[1] = data >> 8; | |
4127 | ||
4128 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); | |
4129 | } | |
4130 | ||
4d791aad CP |
4131 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
4132 | u8 *data, int data_len) | |
1da177e4 LT |
4133 | { |
4134 | struct get_set_mib m; | |
4135 | m.type = type; | |
4136 | m.size = data_len; | |
4137 | m.index = index; | |
4138 | ||
4139 | if (data_len > MIB_MAX_DATA_BYTES) | |
4140 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4141 | |
1da177e4 LT |
4142 | memcpy(m.data, data, data_len); |
4143 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); | |
4144 | } | |
4145 | ||
4d791aad CP |
4146 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
4147 | u8 *data, int data_len) | |
1da177e4 LT |
4148 | { |
4149 | struct get_set_mib m; | |
4150 | m.type = type; | |
4151 | m.size = data_len; | |
4152 | m.index = index; | |
4d791aad | 4153 | |
1da177e4 LT |
4154 | if (data_len > MIB_MAX_DATA_BYTES) |
4155 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4156 | |
1da177e4 | 4157 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
4d791aad | 4158 | atmel_copy_to_host(priv->dev, data, |
1da177e4 LT |
4159 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
4160 | } | |
4161 | ||
4162 | static void atmel_writeAR(struct net_device *dev, u16 data) | |
4163 | { | |
4164 | int i; | |
4165 | outw(data, dev->base_addr + AR); | |
4166 | /* Address register appears to need some convincing..... */ | |
4d791aad | 4167 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
1da177e4 LT |
4168 | outw(data, dev->base_addr + AR); |
4169 | } | |
4170 | ||
4d791aad | 4171 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
2f26e8af | 4172 | const unsigned char *src, u16 len) |
1da177e4 LT |
4173 | { |
4174 | int i; | |
4175 | atmel_writeAR(dev, dest); | |
4176 | if (dest % 2) { | |
4177 | atmel_write8(dev, DR, *src); | |
4178 | src++; len--; | |
4179 | } | |
4180 | for (i = len; i > 1 ; i -= 2) { | |
4181 | u8 lb = *src++; | |
4182 | u8 hb = *src++; | |
4183 | atmel_write16(dev, DR, lb | (hb << 8)); | |
4184 | } | |
4185 | if (i) | |
4186 | atmel_write8(dev, DR, *src); | |
4187 | } | |
4188 | ||
4d791aad CP |
4189 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
4190 | u16 src, u16 len) | |
1da177e4 LT |
4191 | { |
4192 | int i; | |
4193 | atmel_writeAR(dev, src); | |
4194 | if (src % 2) { | |
4195 | *dest = atmel_read8(dev, DR); | |
4196 | dest++; len--; | |
4197 | } | |
4198 | for (i = len; i > 1 ; i -= 2) { | |
4199 | u16 hw = atmel_read16(dev, DR); | |
4200 | *dest++ = hw; | |
4201 | *dest++ = hw >> 8; | |
4202 | } | |
4203 | if (i) | |
4204 | *dest = atmel_read8(dev, DR); | |
4205 | } | |
4206 | ||
4207 | static void atmel_set_gcr(struct net_device *dev, u16 mask) | |
4208 | { | |
4209 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); | |
4210 | } | |
4211 | ||
4212 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) | |
4213 | { | |
4214 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); | |
4215 | } | |
4216 | ||
4217 | static int atmel_lock_mac(struct atmel_private *priv) | |
4218 | { | |
4219 | int i, j = 20; | |
4220 | retry: | |
4221 | for (i = 5000; i; i--) { | |
4222 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) | |
4223 | break; | |
4224 | udelay(20); | |
4225 | } | |
4d791aad CP |
4226 | |
4227 | if (!i) | |
4228 | return 0; /* timed out */ | |
4229 | ||
1da177e4 LT |
4230 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
4231 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { | |
4232 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad CP |
4233 | if (!j--) |
4234 | return 0; /* timed out */ | |
1da177e4 LT |
4235 | goto retry; |
4236 | } | |
4d791aad | 4237 | |
1da177e4 LT |
4238 | return 1; |
4239 | } | |
4240 | ||
4241 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) | |
4242 | { | |
4d791aad | 4243 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
4244 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
4245 | atmel_write16(priv->dev, DR, data >> 16); | |
4246 | } | |
4247 | ||
4248 | /***************************************************************************/ | |
4249 | /* There follows the source form of the MAC address reading firmware */ | |
4250 | /***************************************************************************/ | |
4251 | #if 0 | |
4252 | ||
4253 | /* Copyright 2003 Matthew T. Russotto */ | |
4254 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ | |
4255 | /* included in "atmel wireless lan drivers" package */ | |
4256 | /** | |
4257 | This file is part of net.russotto.AtmelMACFW, hereto referred to | |
4258 | as AtmelMACFW | |
4259 | ||
4260 | AtmelMACFW is free software; you can redistribute it and/or modify | |
4261 | it under the terms of the GNU General Public License version 2 | |
4262 | as published by the Free Software Foundation. | |
4263 | ||
4264 | AtmelMACFW is distributed in the hope that it will be useful, | |
4265 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
4266 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
4267 | GNU General Public License for more details. | |
4268 | ||
4269 | You should have received a copy of the GNU General Public License | |
36769159 | 4270 | along with AtmelMACFW; if not, see <http://www.gnu.org/licenses/>. |
1da177e4 LT |
4271 | |
4272 | ****************************************************************************/ | |
4273 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ | |
4274 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ | |
4275 | /* It only works on SPI EEPROM versions of the card. */ | |
4276 | ||
4277 | /* This firmware initializes the SPI controller and clock, reads the MAC */ | |
4278 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ | |
4279 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ | |
4280 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ | |
4281 | /* MR4, for investigational purposes (maybe we can determine chip type */ | |
4282 | /* from that?) */ | |
4283 | ||
4284 | .org 0 | |
4285 | .set MRBASE, 0x8000000 | |
4286 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ | |
4287 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ | |
4288 | .set SRAM_BASE, 0x02000000 | |
4289 | .set SP_BASE, 0x0F300000 | |
4290 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ | |
4291 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ | |
4292 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ | |
4293 | .set STACK_BASE, 0x5600 | |
4294 | .set SP_SR, 0x10 | |
4295 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ | |
4296 | .set SP_RDRF, 1 /* status register bit -- RDR full */ | |
4297 | .set SP_SWRST, 0x80 | |
4298 | .set SP_SPIEN, 0x1 | |
4299 | .set SP_CR, 0 /* control register */ | |
4300 | .set SP_MR, 4 /* mode register */ | |
4301 | .set SP_RDR, 0x08 /* Read Data Register */ | |
4302 | .set SP_TDR, 0x0C /* Transmit Data Register */ | |
4303 | .set SP_CSR0, 0x30 /* chip select registers */ | |
4304 | .set SP_CSR1, 0x34 | |
4305 | .set SP_CSR2, 0x38 | |
4306 | .set SP_CSR3, 0x3C | |
4307 | .set NVRAM_CMD_RDSR, 5 /* read status register */ | |
4308 | .set NVRAM_CMD_READ, 3 /* read data */ | |
4309 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ | |
4310 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the | |
4311 | serial output, since SO is normally high. But it | |
4312 | does cause 8 clock cycles and thus 8 bits to be | |
4313 | clocked in to the chip. See Atmel's SPI | |
4d791aad | 4314 | controller (e.g. AT91M55800) timing and 4K |
1da177e4 | 4315 | SPI EEPROM manuals */ |
4d791aad | 4316 | |
1da177e4 LT |
4317 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
4318 | .set NVRAM_IMAGE, 0x02000200 | |
4319 | .set NVRAM_LENGTH, 0x0200 | |
4320 | .set MAC_ADDRESS_MIB, SRAM_BASE | |
4321 | .set MAC_ADDRESS_LENGTH, 6 | |
8830cb67 | 4322 | .set MAC_BOOT_FLAG, 0x10 |
1da177e4 LT |
4323 | .set MR1, 0 |
4324 | .set MR2, 4 | |
4325 | .set MR3, 8 | |
4326 | .set MR4, 0xC | |
4327 | RESET_VECTOR: | |
8830cb67 | 4328 | b RESET_HANDLER |
4d791aad | 4329 | UNDEF_VECTOR: |
8830cb67 | 4330 | b HALT1 |
4d791aad | 4331 | SWI_VECTOR: |
8830cb67 | 4332 | b HALT1 |
4d791aad | 4333 | IABORT_VECTOR: |
8830cb67 | 4334 | b HALT1 |
4d791aad CP |
4335 | DABORT_VECTOR: |
4336 | RESERVED_VECTOR: | |
8830cb67 | 4337 | b HALT1 |
4d791aad | 4338 | IRQ_VECTOR: |
8830cb67 | 4339 | b HALT1 |
4d791aad | 4340 | FIQ_VECTOR: |
1da177e4 LT |
4341 | b HALT1 |
4342 | HALT1: b HALT1 | |
4343 | RESET_HANDLER: | |
4344 | mov r0, #CPSR_INITIAL | |
4345 | msr CPSR_c, r0 /* This is probably unnecessary */ | |
4d791aad | 4346 | |
1da177e4 LT |
4347 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
4348 | ldr r0, =SPI_CGEN_BASE | |
4349 | mov r1, #0 | |
4350 | mov r1, r1, lsl #3 | |
8830cb67 | 4351 | orr r1, r1, #0 |
1da177e4 LT |
4352 | str r1, [r0] |
4353 | ldr r1, [r0, #28] | |
4354 | bic r1, r1, #16 | |
4355 | str r1, [r0, #28] | |
4356 | mov r1, #1 | |
4357 | str r1, [r0, #8] | |
4d791aad | 4358 | |
1da177e4 LT |
4359 | ldr r0, =MRBASE |
4360 | mov r1, #0 | |
4361 | strh r1, [r0, #MR1] | |
4362 | strh r1, [r0, #MR2] | |
4363 | strh r1, [r0, #MR3] | |
4364 | strh r1, [r0, #MR4] | |
4365 | ||
4366 | mov sp, #STACK_BASE | |
4367 | bl SP_INIT | |
4368 | mov r0, #10 | |
4369 | bl DELAY9 | |
4370 | bl GET_MAC_ADDR | |
4371 | bl GET_WHOLE_NVRAM | |
4372 | ldr r0, =MRBASE | |
4373 | ldr r1, =MAC_ADDRESS_MIB | |
4374 | strh r1, [r0, #MR2] | |
4375 | ldr r1, =NVRAM_IMAGE | |
4376 | strh r1, [r0, #MR4] | |
4377 | mov r1, #MAC_BOOT_FLAG | |
4378 | strh r1, [r0, #MR3] | |
4379 | HALT2: b HALT2 | |
4380 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM | |
4381 | GET_WHOLE_NVRAM: | |
4382 | stmdb sp!, {lr} | |
4383 | mov r2, #0 /* 0th bytes of NVRAM */ | |
4384 | mov r3, #NVRAM_LENGTH | |
4385 | mov r1, #0 /* not used in routine */ | |
4386 | ldr r0, =NVRAM_IMAGE | |
4387 | bl NVRAM_XFER | |
4388 | ldmia sp!, {lr} | |
4389 | bx lr | |
4390 | .endfunc | |
4d791aad | 4391 | |
1da177e4 LT |
4392 | .func Get_MAC_Addr, GET_MAC_ADDR |
4393 | GET_MAC_ADDR: | |
4394 | stmdb sp!, {lr} | |
4395 | mov r2, #0x120 /* address of MAC Address within NVRAM */ | |
4396 | mov r3, #MAC_ADDRESS_LENGTH | |
4397 | mov r1, #0 /* not used in routine */ | |
4398 | ldr r0, =MAC_ADDRESS_MIB | |
4399 | bl NVRAM_XFER | |
4400 | ldmia sp!, {lr} | |
4401 | bx lr | |
4402 | .endfunc | |
4403 | .ltorg | |
4404 | .func Delay9, DELAY9 | |
4405 | DELAY9: | |
4406 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ | |
4d791aad | 4407 | DELAYLOOP: |
1da177e4 LT |
4408 | beq DELAY9_done |
4409 | subs r0, r0, #1 | |
4410 | b DELAYLOOP | |
4d791aad | 4411 | DELAY9_done: |
1da177e4 | 4412 | bx lr |
4d791aad | 4413 | .endfunc |
1da177e4 LT |
4414 | |
4415 | .func SP_Init, SP_INIT | |
4416 | SP_INIT: | |
4417 | mov r1, #SP_SWRST | |
4418 | ldr r0, =SP_BASE | |
4419 | str r1, [r0, #SP_CR] /* reset the SPI */ | |
4420 | mov r1, #0 | |
4421 | str r1, [r0, #SP_CR] /* release SPI from reset state */ | |
4422 | mov r1, #SP_SPIEN | |
4423 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ | |
4424 | str r1, [r0, #SP_CR] /* enable the SPI */ | |
4425 | ||
4426 | /* My guess would be this turns on the SPI clock */ | |
4427 | ldr r3, =SPI_CGEN_BASE | |
4428 | ldr r1, [r3, #28] | |
4429 | orr r1, r1, #0x2000 | |
4430 | str r1, [r3, #28] | |
4431 | ||
4432 | ldr r1, =0x2000c01 | |
4433 | str r1, [r0, #SP_CSR0] | |
4434 | ldr r1, =0x2000201 | |
4435 | str r1, [r0, #SP_CSR1] | |
4436 | str r1, [r0, #SP_CSR2] | |
4437 | str r1, [r0, #SP_CSR3] | |
4438 | ldr r1, [r0, #SP_SR] | |
4439 | ldr r0, [r0, #SP_RDR] | |
4440 | bx lr | |
4441 | .endfunc | |
4d791aad | 4442 | .func NVRAM_Init, NVRAM_INIT |
1da177e4 LT |
4443 | NVRAM_INIT: |
4444 | ldr r1, =SP_BASE | |
4445 | ldr r0, [r1, #SP_RDR] | |
4446 | mov r0, #NVRAM_CMD_RDSR | |
4447 | str r0, [r1, #SP_TDR] | |
4d791aad | 4448 | SP_loop1: |
1da177e4 LT |
4449 | ldr r0, [r1, #SP_SR] |
4450 | tst r0, #SP_TDRE | |
4451 | beq SP_loop1 | |
4452 | ||
4453 | mov r0, #SPI_8CLOCKS | |
4d791aad CP |
4454 | str r0, [r1, #SP_TDR] |
4455 | SP_loop2: | |
1da177e4 LT |
4456 | ldr r0, [r1, #SP_SR] |
4457 | tst r0, #SP_TDRE | |
4458 | beq SP_loop2 | |
4459 | ||
4460 | ldr r0, [r1, #SP_RDR] | |
4d791aad | 4461 | SP_loop3: |
1da177e4 LT |
4462 | ldr r0, [r1, #SP_SR] |
4463 | tst r0, #SP_RDRF | |
4464 | beq SP_loop3 | |
4465 | ||
4466 | ldr r0, [r1, #SP_RDR] | |
4467 | and r0, r0, #255 | |
4468 | bx lr | |
4469 | .endfunc | |
4d791aad | 4470 | |
1da177e4 LT |
4471 | .func NVRAM_Xfer, NVRAM_XFER |
4472 | /* r0 = dest address */ | |
4473 | /* r1 = not used */ | |
4474 | /* r2 = src address within NVRAM */ | |
4475 | /* r3 = length */ | |
4476 | NVRAM_XFER: | |
4477 | stmdb sp!, {r4, r5, lr} | |
4478 | mov r5, r0 /* save r0 (dest address) */ | |
4479 | mov r4, r3 /* save r3 (length) */ | |
4480 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ | |
4481 | and r0, r0, #8 | |
4d791aad | 4482 | add r0, r0, #NVRAM_CMD_READ |
1da177e4 LT |
4483 | ldr r1, =NVRAM_SCRATCH |
4484 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ | |
4485 | strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */ | |
4d791aad | 4486 | _local1: |
1da177e4 LT |
4487 | bl NVRAM_INIT |
4488 | tst r0, #NVRAM_SR_RDY | |
4489 | bne _local1 | |
4490 | mov r0, #20 | |
4491 | bl DELAY9 | |
4492 | mov r2, r4 /* length */ | |
4493 | mov r1, r5 /* dest address */ | |
4494 | mov r0, #2 /* bytes to transfer in command */ | |
4495 | bl NVRAM_XFER2 | |
4496 | ldmia sp!, {r4, r5, lr} | |
4497 | bx lr | |
4498 | .endfunc | |
4499 | ||
4500 | .func NVRAM_Xfer2, NVRAM_XFER2 | |
4501 | NVRAM_XFER2: | |
4502 | stmdb sp!, {r4, r5, r6, lr} | |
4503 | ldr r4, =SP_BASE | |
4504 | mov r3, #0 | |
4505 | cmp r0, #0 | |
4506 | bls _local2 | |
4507 | ldr r5, =NVRAM_SCRATCH | |
4d791aad | 4508 | _local4: |
1da177e4 LT |
4509 | ldrb r6, [r5, r3] |
4510 | str r6, [r4, #SP_TDR] | |
4511 | _local3: | |
4512 | ldr r6, [r4, #SP_SR] | |
4513 | tst r6, #SP_TDRE | |
4514 | beq _local3 | |
4515 | add r3, r3, #1 | |
4516 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ | |
4517 | blo _local4 | |
4518 | _local2: | |
4519 | mov r3, #SPI_8CLOCKS | |
4520 | str r3, [r4, #SP_TDR] | |
4521 | ldr r0, [r4, #SP_RDR] | |
4d791aad | 4522 | _local5: |
1da177e4 LT |
4523 | ldr r0, [r4, #SP_SR] |
4524 | tst r0, #SP_RDRF | |
4525 | beq _local5 | |
4526 | 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 */ | |
4527 | mov r0, #0 | |
4528 | cmp r2, #0 /* r2 is # of bytes to copy in */ | |
4529 | bls _local6 | |
4d791aad | 4530 | _local7: |
1da177e4 LT |
4531 | ldr r5, [r4, #SP_SR] |
4532 | tst r5, #SP_TDRE | |
4533 | beq _local7 | |
4534 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ | |
4d791aad | 4535 | _local8: |
1da177e4 LT |
4536 | ldr r5, [r4, #SP_SR] |
4537 | tst r5, #SP_RDRF | |
4538 | beq _local8 | |
4539 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ | |
4540 | strb r5, [r1], #1 /* postindexed */ | |
4541 | add r0, r0, #1 | |
4542 | cmp r0, r2 | |
4543 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ | |
4544 | _local6: | |
4545 | mov r0, #200 | |
4546 | bl DELAY9 | |
4547 | ldmia sp!, {r4, r5, r6, lr} | |
4548 | bx lr | |
4549 | #endif |