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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 | |
31 | along with Atmel wireless lan drivers; if not, write to the Free Software | |
32 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
33 | ||
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 | ||
1da177e4 | 42 | #include <linux/init.h> |
a6b7a407 | 43 | #include <linux/interrupt.h> |
1da177e4 LT |
44 | |
45 | #include <linux/kernel.h> | |
1da177e4 LT |
46 | #include <linux/ptrace.h> |
47 | #include <linux/slab.h> | |
48 | #include <linux/string.h> | |
49 | #include <linux/ctype.h> | |
50 | #include <linux/timer.h> | |
9a6ab769 | 51 | #include <asm/byteorder.h> |
1da177e4 | 52 | #include <asm/io.h> |
1da177e4 LT |
53 | #include <asm/uaccess.h> |
54 | #include <linux/module.h> | |
55 | #include <linux/netdevice.h> | |
56 | #include <linux/etherdevice.h> | |
57 | #include <linux/skbuff.h> | |
58 | #include <linux/if_arp.h> | |
59 | #include <linux/ioport.h> | |
60 | #include <linux/fcntl.h> | |
61 | #include <linux/delay.h> | |
62 | #include <linux/wireless.h> | |
63 | #include <net/iw_handler.h> | |
1da177e4 LT |
64 | #include <linux/crc32.h> |
65 | #include <linux/proc_fs.h> | |
66 | #include <linux/device.h> | |
67 | #include <linux/moduleparam.h> | |
68 | #include <linux/firmware.h> | |
6e33e30d | 69 | #include <linux/jiffies.h> |
2c706002 | 70 | #include <linux/ieee80211.h> |
1da177e4 LT |
71 | #include "atmel.h" |
72 | ||
73 | #define DRIVER_MAJOR 0 | |
b16a228d | 74 | #define DRIVER_MINOR 98 |
1da177e4 LT |
75 | |
76 | MODULE_AUTHOR("Simon Kelley"); | |
77 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); | |
78 | MODULE_LICENSE("GPL"); | |
79 | MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards"); | |
80 | ||
4d791aad | 81 | /* The name of the firmware file to be loaded |
1da177e4 LT |
82 | over-rides any automatic selection */ |
83 | static char *firmware = NULL; | |
84 | module_param(firmware, charp, 0); | |
85 | ||
86 | /* table of firmware file names */ | |
4d791aad | 87 | static struct { |
1da177e4 LT |
88 | AtmelFWType fw_type; |
89 | const char *fw_file; | |
90 | const char *fw_file_ext; | |
91 | } fw_table[] = { | |
8830cb67 JD |
92 | { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" }, |
93 | { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" }, | |
94 | { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" }, | |
95 | { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" }, | |
96 | { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" }, | |
97 | { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" }, | |
98 | { ATMEL_FW_TYPE_504A_2958, "atmel_at76c504a_2958", "bin" }, | |
99 | { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" }, | |
100 | { ATMEL_FW_TYPE_NONE, NULL, NULL } | |
1da177e4 | 101 | }; |
b98a032f BH |
102 | MODULE_FIRMWARE("atmel_at76c502-wpa.bin"); |
103 | MODULE_FIRMWARE("atmel_at76c502.bin"); | |
104 | MODULE_FIRMWARE("atmel_at76c502d-wpa.bin"); | |
105 | MODULE_FIRMWARE("atmel_at76c502d.bin"); | |
106 | MODULE_FIRMWARE("atmel_at76c502e-wpa.bin"); | |
107 | MODULE_FIRMWARE("atmel_at76c502e.bin"); | |
108 | MODULE_FIRMWARE("atmel_at76c502_3com-wpa.bin"); | |
109 | MODULE_FIRMWARE("atmel_at76c502_3com.bin"); | |
110 | MODULE_FIRMWARE("atmel_at76c504-wpa.bin"); | |
111 | MODULE_FIRMWARE("atmel_at76c504.bin"); | |
112 | MODULE_FIRMWARE("atmel_at76c504_2958-wpa.bin"); | |
113 | MODULE_FIRMWARE("atmel_at76c504_2958.bin"); | |
114 | MODULE_FIRMWARE("atmel_at76c504a_2958-wpa.bin"); | |
115 | MODULE_FIRMWARE("atmel_at76c504a_2958.bin"); | |
116 | MODULE_FIRMWARE("atmel_at76c506-wpa.bin"); | |
117 | MODULE_FIRMWARE("atmel_at76c506.bin"); | |
1da177e4 LT |
118 | |
119 | #define MAX_SSID_LENGTH 32 | |
120 | #define MGMT_JIFFIES (256 * HZ / 100) | |
121 | ||
4d791aad | 122 | #define MAX_BSS_ENTRIES 64 |
1da177e4 LT |
123 | |
124 | /* registers */ | |
8830cb67 JD |
125 | #define GCR 0x00 /* (SIR0) General Configuration Register */ |
126 | #define BSR 0x02 /* (SIR1) Bank Switching Select Register */ | |
1da177e4 LT |
127 | #define AR 0x04 |
128 | #define DR 0x08 | |
8830cb67 JD |
129 | #define MR1 0x12 /* Mirror Register 1 */ |
130 | #define MR2 0x14 /* Mirror Register 2 */ | |
131 | #define MR3 0x16 /* Mirror Register 3 */ | |
132 | #define MR4 0x18 /* Mirror Register 4 */ | |
1da177e4 LT |
133 | |
134 | #define GPR1 0x0c | |
135 | #define GPR2 0x0e | |
136 | #define GPR3 0x10 | |
8830cb67 JD |
137 | /* |
138 | * Constants for the GCR register. | |
139 | */ | |
140 | #define GCR_REMAP 0x0400 /* Remap internal SRAM to 0 */ | |
141 | #define GCR_SWRES 0x0080 /* BIU reset (ARM and PAI are NOT reset) */ | |
142 | #define GCR_CORES 0x0060 /* Core Reset (ARM and PAI are reset) */ | |
143 | #define GCR_ENINT 0x0002 /* Enable Interrupts */ | |
144 | #define GCR_ACKINT 0x0008 /* Acknowledge Interrupts */ | |
145 | ||
146 | #define BSS_SRAM 0x0200 /* AMBA module selection --> SRAM */ | |
147 | #define BSS_IRAM 0x0100 /* AMBA module selection --> IRAM */ | |
148 | /* | |
149 | *Constants for the MR registers. | |
150 | */ | |
151 | #define MAC_INIT_COMPLETE 0x0001 /* MAC init has been completed */ | |
152 | #define MAC_BOOT_COMPLETE 0x0010 /* MAC boot has been completed */ | |
153 | #define MAC_INIT_OK 0x0002 /* MAC boot has been completed */ | |
1da177e4 | 154 | |
1da177e4 LT |
155 | #define MIB_MAX_DATA_BYTES 212 |
156 | #define MIB_HEADER_SIZE 4 /* first four fields */ | |
157 | ||
158 | struct get_set_mib { | |
8830cb67 JD |
159 | u8 type; |
160 | u8 size; | |
161 | u8 index; | |
162 | u8 reserved; | |
163 | u8 data[MIB_MAX_DATA_BYTES]; | |
1da177e4 LT |
164 | }; |
165 | ||
166 | struct rx_desc { | |
8830cb67 JD |
167 | u32 Next; |
168 | u16 MsduPos; | |
169 | u16 MsduSize; | |
170 | ||
171 | u8 State; | |
172 | u8 Status; | |
173 | u8 Rate; | |
174 | u8 Rssi; | |
175 | u8 LinkQuality; | |
176 | u8 PreambleType; | |
177 | u16 Duration; | |
178 | u32 RxTime; | |
1da177e4 LT |
179 | }; |
180 | ||
181 | #define RX_DESC_FLAG_VALID 0x80 | |
182 | #define RX_DESC_FLAG_CONSUMED 0x40 | |
183 | #define RX_DESC_FLAG_IDLE 0x00 | |
184 | ||
185 | #define RX_STATUS_SUCCESS 0x00 | |
186 | ||
187 | #define RX_DESC_MSDU_POS_OFFSET 4 | |
188 | #define RX_DESC_MSDU_SIZE_OFFSET 6 | |
189 | #define RX_DESC_FLAGS_OFFSET 8 | |
190 | #define RX_DESC_STATUS_OFFSET 9 | |
191 | #define RX_DESC_RSSI_OFFSET 11 | |
192 | #define RX_DESC_LINK_QUALITY_OFFSET 12 | |
193 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 | |
194 | #define RX_DESC_DURATION_OFFSET 14 | |
195 | #define RX_DESC_RX_TIME_OFFSET 16 | |
196 | ||
1da177e4 LT |
197 | struct tx_desc { |
198 | u32 NextDescriptor; | |
199 | u16 TxStartOfFrame; | |
200 | u16 TxLength; | |
4d791aad | 201 | |
1da177e4 LT |
202 | u8 TxState; |
203 | u8 TxStatus; | |
204 | u8 RetryCount; | |
4d791aad | 205 | |
1da177e4 LT |
206 | u8 TxRate; |
207 | ||
208 | u8 KeyIndex; | |
209 | u8 ChiperType; | |
210 | u8 ChipreLength; | |
8830cb67 | 211 | u8 Reserved1; |
1da177e4 LT |
212 | |
213 | u8 Reserved; | |
214 | u8 PacketType; | |
215 | u16 HostTxLength; | |
1da177e4 LT |
216 | }; |
217 | ||
1da177e4 LT |
218 | #define TX_DESC_NEXT_OFFSET 0 |
219 | #define TX_DESC_POS_OFFSET 4 | |
220 | #define TX_DESC_SIZE_OFFSET 6 | |
221 | #define TX_DESC_FLAGS_OFFSET 8 | |
222 | #define TX_DESC_STATUS_OFFSET 9 | |
223 | #define TX_DESC_RETRY_OFFSET 10 | |
224 | #define TX_DESC_RATE_OFFSET 11 | |
225 | #define TX_DESC_KEY_INDEX_OFFSET 12 | |
226 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 | |
227 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 | |
228 | #define TX_DESC_PACKET_TYPE_OFFSET 17 | |
229 | #define TX_DESC_HOST_LENGTH_OFFSET 18 | |
230 | ||
8830cb67 JD |
231 | /* |
232 | * Host-MAC interface | |
233 | */ | |
1da177e4 LT |
234 | |
235 | #define TX_STATUS_SUCCESS 0x00 | |
236 | ||
237 | #define TX_FIRM_OWN 0x80 | |
238 | #define TX_DONE 0x40 | |
239 | ||
1da177e4 LT |
240 | #define TX_ERROR 0x01 |
241 | ||
242 | #define TX_PACKET_TYPE_DATA 0x01 | |
243 | #define TX_PACKET_TYPE_MGMT 0x02 | |
244 | ||
8830cb67 JD |
245 | #define ISR_EMPTY 0x00 /* no bits set in ISR */ |
246 | #define ISR_TxCOMPLETE 0x01 /* packet transmitted */ | |
247 | #define ISR_RxCOMPLETE 0x02 /* packet received */ | |
248 | #define ISR_RxFRAMELOST 0x04 /* Rx Frame lost */ | |
249 | #define ISR_FATAL_ERROR 0x08 /* Fatal error */ | |
250 | #define ISR_COMMAND_COMPLETE 0x10 /* command completed */ | |
251 | #define ISR_OUT_OF_RANGE 0x20 /* command completed */ | |
252 | #define ISR_IBSS_MERGE 0x40 /* (4.1.2.30): IBSS merge */ | |
4d791aad | 253 | #define ISR_GENERIC_IRQ 0x80 |
1da177e4 LT |
254 | |
255 | #define Local_Mib_Type 0x01 | |
256 | #define Mac_Address_Mib_Type 0x02 | |
257 | #define Mac_Mib_Type 0x03 | |
258 | #define Statistics_Mib_Type 0x04 | |
259 | #define Mac_Mgmt_Mib_Type 0x05 | |
260 | #define Mac_Wep_Mib_Type 0x06 | |
261 | #define Phy_Mib_Type 0x07 | |
262 | #define Multi_Domain_MIB 0x08 | |
263 | ||
264 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
265 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 | |
266 | #define MAC_MIB_RTS_THRESHOLD_POS 10 | |
267 | #define MAC_MIB_SHORT_RETRY_POS 16 | |
268 | #define MAC_MIB_LONG_RETRY_POS 17 | |
269 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 | |
270 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 | |
271 | #define MAC_MGMT_MIB_STATION_ID_POS 6 | |
272 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 | |
273 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
274 | #define MAC_MGMT_MIB_PS_MODE_POS 53 | |
275 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 | |
276 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 | |
277 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 | |
278 | #define PHY_MIB_CHANNEL_POS 14 | |
279 | #define PHY_MIB_RATE_SET_POS 20 | |
280 | #define PHY_MIB_REG_DOMAIN_POS 26 | |
281 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 | |
282 | #define LOCAL_MIB_SSID_SIZE 5 | |
283 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 | |
284 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 | |
285 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 | |
286 | #define LOCAL_MIB_PREAMBLE_TYPE 9 | |
287 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 | |
288 | ||
1da177e4 LT |
289 | #define CMD_Set_MIB_Vars 0x01 |
290 | #define CMD_Get_MIB_Vars 0x02 | |
291 | #define CMD_Scan 0x03 | |
292 | #define CMD_Join 0x04 | |
293 | #define CMD_Start 0x05 | |
294 | #define CMD_EnableRadio 0x06 | |
295 | #define CMD_DisableRadio 0x07 | |
296 | #define CMD_SiteSurvey 0x0B | |
297 | ||
298 | #define CMD_STATUS_IDLE 0x00 | |
299 | #define CMD_STATUS_COMPLETE 0x01 | |
300 | #define CMD_STATUS_UNKNOWN 0x02 | |
301 | #define CMD_STATUS_INVALID_PARAMETER 0x03 | |
302 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 | |
303 | #define CMD_STATUS_TIME_OUT 0x07 | |
304 | #define CMD_STATUS_IN_PROGRESS 0x08 | |
305 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 | |
306 | #define CMD_STATUS_HOST_ERROR 0xFF | |
307 | #define CMD_STATUS_BUSY 0xFE | |
308 | ||
1da177e4 LT |
309 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
310 | #define CMD_BLOCK_STATUS_OFFSET 1 | |
311 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 | |
312 | ||
313 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 | |
314 | ||
315 | #define MGMT_FRAME_BODY_OFFSET 24 | |
316 | #define MAX_AUTHENTICATION_RETRIES 3 | |
4d791aad | 317 | #define MAX_ASSOCIATION_RETRIES 3 |
1da177e4 LT |
318 | |
319 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 | |
320 | ||
321 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ | |
322 | #define LOOP_RETRY_LIMIT 500000 | |
323 | ||
4d791aad CP |
324 | #define ACTIVE_MODE 1 |
325 | #define PS_MODE 2 | |
1da177e4 LT |
326 | |
327 | #define MAX_ENCRYPTION_KEYS 4 | |
328 | #define MAX_ENCRYPTION_KEY_SIZE 40 | |
329 | ||
8830cb67 JD |
330 | /* |
331 | * 802.11 related definitions | |
332 | */ | |
1da177e4 | 333 | |
8830cb67 JD |
334 | /* |
335 | * Regulatory Domains | |
336 | */ | |
1da177e4 | 337 | |
8830cb67 JD |
338 | #define REG_DOMAIN_FCC 0x10 /* Channels 1-11 USA */ |
339 | #define REG_DOMAIN_DOC 0x20 /* Channel 1-11 Canada */ | |
340 | #define REG_DOMAIN_ETSI 0x30 /* Channel 1-13 Europe (ex Spain/France) */ | |
341 | #define REG_DOMAIN_SPAIN 0x31 /* Channel 10-11 Spain */ | |
342 | #define REG_DOMAIN_FRANCE 0x32 /* Channel 10-13 France */ | |
343 | #define REG_DOMAIN_MKK 0x40 /* Channel 14 Japan */ | |
344 | #define REG_DOMAIN_MKK1 0x41 /* Channel 1-14 Japan(MKK1) */ | |
345 | #define REG_DOMAIN_ISRAEL 0x50 /* Channel 3-9 ISRAEL */ | |
1da177e4 | 346 | |
4d791aad | 347 | #define BSS_TYPE_AD_HOC 1 |
1da177e4 LT |
348 | #define BSS_TYPE_INFRASTRUCTURE 2 |
349 | ||
350 | #define SCAN_TYPE_ACTIVE 0 | |
351 | #define SCAN_TYPE_PASSIVE 1 | |
352 | ||
353 | #define LONG_PREAMBLE 0 | |
354 | #define SHORT_PREAMBLE 1 | |
355 | #define AUTO_PREAMBLE 2 | |
356 | ||
357 | #define DATA_FRAME_WS_HEADER_SIZE 30 | |
358 | ||
4d791aad | 359 | /* promiscuous mode control */ |
1da177e4 LT |
360 | #define PROM_MODE_OFF 0x0 |
361 | #define PROM_MODE_UNKNOWN 0x1 | |
362 | #define PROM_MODE_CRC_FAILED 0x2 | |
363 | #define PROM_MODE_DUPLICATED 0x4 | |
364 | #define PROM_MODE_MGMT 0x8 | |
365 | #define PROM_MODE_CTRL 0x10 | |
366 | #define PROM_MODE_BAD_PROTOCOL 0x20 | |
367 | ||
4d791aad | 368 | #define IFACE_INT_STATUS_OFFSET 0 |
1da177e4 LT |
369 | #define IFACE_INT_MASK_OFFSET 1 |
370 | #define IFACE_LOCKOUT_HOST_OFFSET 2 | |
371 | #define IFACE_LOCKOUT_MAC_OFFSET 3 | |
372 | #define IFACE_FUNC_CTRL_OFFSET 28 | |
373 | #define IFACE_MAC_STAT_OFFSET 30 | |
374 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 | |
375 | ||
4d791aad | 376 | #define CIPHER_SUITE_NONE 0 |
1da177e4 LT |
377 | #define CIPHER_SUITE_WEP_64 1 |
378 | #define CIPHER_SUITE_TKIP 2 | |
379 | #define CIPHER_SUITE_AES 3 | |
380 | #define CIPHER_SUITE_CCX 4 | |
381 | #define CIPHER_SUITE_WEP_128 5 | |
382 | ||
8830cb67 JD |
383 | /* |
384 | * IFACE MACROS & definitions | |
385 | */ | |
1da177e4 | 386 | |
8830cb67 JD |
387 | /* |
388 | * FuncCtrl field: | |
389 | */ | |
1da177e4 LT |
390 | #define FUNC_CTRL_TxENABLE 0x10 |
391 | #define FUNC_CTRL_RxENABLE 0x20 | |
4d791aad | 392 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
1da177e4 LT |
393 | |
394 | /* A stub firmware image which reads the MAC address from NVRAM on the card. | |
395 | For copyright information and source see the end of this file. */ | |
396 | static u8 mac_reader[] = { | |
8830cb67 JD |
397 | 0x06, 0x00, 0x00, 0xea, 0x04, 0x00, 0x00, 0xea, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x00, 0xea, |
398 | 0x01, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0xea, 0xff, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea, | |
399 | 0xd3, 0x00, 0xa0, 0xe3, 0x00, 0xf0, 0x21, 0xe1, 0x0e, 0x04, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
400 | 0x81, 0x11, 0xa0, 0xe1, 0x00, 0x10, 0x81, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x1c, 0x10, 0x90, 0xe5, | |
401 | 0x10, 0x10, 0xc1, 0xe3, 0x1c, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x08, 0x10, 0x80, 0xe5, | |
402 | 0x02, 0x03, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, 0xb0, 0x10, 0xc0, 0xe1, 0xb4, 0x10, 0xc0, 0xe1, | |
403 | 0xb8, 0x10, 0xc0, 0xe1, 0xbc, 0x10, 0xc0, 0xe1, 0x56, 0xdc, 0xa0, 0xe3, 0x21, 0x00, 0x00, 0xeb, | |
404 | 0x0a, 0x00, 0xa0, 0xe3, 0x1a, 0x00, 0x00, 0xeb, 0x10, 0x00, 0x00, 0xeb, 0x07, 0x00, 0x00, 0xeb, | |
405 | 0x02, 0x03, 0xa0, 0xe3, 0x02, 0x14, 0xa0, 0xe3, 0xb4, 0x10, 0xc0, 0xe1, 0x4c, 0x10, 0x9f, 0xe5, | |
406 | 0xbc, 0x10, 0xc0, 0xe1, 0x10, 0x10, 0xa0, 0xe3, 0xb8, 0x10, 0xc0, 0xe1, 0xfe, 0xff, 0xff, 0xea, | |
407 | 0x00, 0x40, 0x2d, 0xe9, 0x00, 0x20, 0xa0, 0xe3, 0x02, 0x3c, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
408 | 0x28, 0x00, 0x9f, 0xe5, 0x37, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, | |
409 | 0x00, 0x40, 0x2d, 0xe9, 0x12, 0x2e, 0xa0, 0xe3, 0x06, 0x30, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, | |
410 | 0x02, 0x04, 0xa0, 0xe3, 0x2f, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, | |
411 | 0x00, 0x02, 0x00, 0x02, 0x80, 0x01, 0x90, 0xe0, 0x01, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x50, 0xe2, | |
412 | 0xfc, 0xff, 0xff, 0xea, 0x1e, 0xff, 0x2f, 0xe1, 0x80, 0x10, 0xa0, 0xe3, 0xf3, 0x06, 0xa0, 0xe3, | |
413 | 0x00, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, | |
414 | 0x04, 0x10, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x0e, 0x34, 0xa0, 0xe3, 0x1c, 0x10, 0x93, 0xe5, | |
415 | 0x02, 0x1a, 0x81, 0xe3, 0x1c, 0x10, 0x83, 0xe5, 0x58, 0x11, 0x9f, 0xe5, 0x30, 0x10, 0x80, 0xe5, | |
416 | 0x54, 0x11, 0x9f, 0xe5, 0x34, 0x10, 0x80, 0xe5, 0x38, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0x80, 0xe5, | |
417 | 0x10, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x90, 0xe5, 0x1e, 0xff, 0x2f, 0xe1, 0xf3, 0x16, 0xa0, 0xe3, | |
418 | 0x08, 0x00, 0x91, 0xe5, 0x05, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, 0x10, 0x00, 0x91, 0xe5, | |
419 | 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0xff, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, | |
420 | 0x10, 0x00, 0x91, 0xe5, 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, | |
421 | 0x10, 0x00, 0x91, 0xe5, 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5, | |
422 | 0xff, 0x00, 0x00, 0xe2, 0x1e, 0xff, 0x2f, 0xe1, 0x30, 0x40, 0x2d, 0xe9, 0x00, 0x50, 0xa0, 0xe1, | |
423 | 0x03, 0x40, 0xa0, 0xe1, 0xa2, 0x02, 0xa0, 0xe1, 0x08, 0x00, 0x00, 0xe2, 0x03, 0x00, 0x80, 0xe2, | |
424 | 0xd8, 0x10, 0x9f, 0xe5, 0x00, 0x00, 0xc1, 0xe5, 0x01, 0x20, 0xc1, 0xe5, 0xe2, 0xff, 0xff, 0xeb, | |
425 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x14, 0x00, 0xa0, 0xe3, 0xc4, 0xff, 0xff, 0xeb, | |
426 | 0x04, 0x20, 0xa0, 0xe1, 0x05, 0x10, 0xa0, 0xe1, 0x02, 0x00, 0xa0, 0xe3, 0x01, 0x00, 0x00, 0xeb, | |
427 | 0x30, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x70, 0x40, 0x2d, 0xe9, 0xf3, 0x46, 0xa0, 0xe3, | |
428 | 0x00, 0x30, 0xa0, 0xe3, 0x00, 0x00, 0x50, 0xe3, 0x08, 0x00, 0x00, 0x9a, 0x8c, 0x50, 0x9f, 0xe5, | |
429 | 0x03, 0x60, 0xd5, 0xe7, 0x0c, 0x60, 0x84, 0xe5, 0x10, 0x60, 0x94, 0xe5, 0x02, 0x00, 0x16, 0xe3, | |
430 | 0xfc, 0xff, 0xff, 0x0a, 0x01, 0x30, 0x83, 0xe2, 0x00, 0x00, 0x53, 0xe1, 0xf7, 0xff, 0xff, 0x3a, | |
431 | 0xff, 0x30, 0xa0, 0xe3, 0x0c, 0x30, 0x84, 0xe5, 0x08, 0x00, 0x94, 0xe5, 0x10, 0x00, 0x94, 0xe5, | |
432 | 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x94, 0xe5, 0x00, 0x00, 0xa0, 0xe3, | |
433 | 0x00, 0x00, 0x52, 0xe3, 0x0b, 0x00, 0x00, 0x9a, 0x10, 0x50, 0x94, 0xe5, 0x02, 0x00, 0x15, 0xe3, | |
434 | 0xfc, 0xff, 0xff, 0x0a, 0x0c, 0x30, 0x84, 0xe5, 0x10, 0x50, 0x94, 0xe5, 0x01, 0x00, 0x15, 0xe3, | |
435 | 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x50, 0x94, 0xe5, 0x01, 0x50, 0xc1, 0xe4, 0x01, 0x00, 0x80, 0xe2, | |
436 | 0x02, 0x00, 0x50, 0xe1, 0xf3, 0xff, 0xff, 0x3a, 0xc8, 0x00, 0xa0, 0xe3, 0x98, 0xff, 0xff, 0xeb, | |
437 | 0x70, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x01, 0x0c, 0x00, 0x02, 0x01, 0x02, 0x00, 0x02, | |
438 | 0x00, 0x01, 0x00, 0x02 | |
1da177e4 LT |
439 | }; |
440 | ||
441 | struct atmel_private { | |
25985edc | 442 | void *card; /* Bus dependent structure varies for PCcard */ |
1da177e4 LT |
443 | int (*present_callback)(void *); /* And callback which uses it */ |
444 | char firmware_id[32]; | |
445 | AtmelFWType firmware_type; | |
446 | u8 *firmware; | |
447 | int firmware_length; | |
448 | struct timer_list management_timer; | |
449 | struct net_device *dev; | |
450 | struct device *sys_dev; | |
451 | struct iw_statistics wstats; | |
8830cb67 | 452 | spinlock_t irqlock, timerlock; /* spinlocks */ |
1da177e4 | 453 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; |
4d791aad CP |
454 | enum { |
455 | CARD_TYPE_PARALLEL_FLASH, | |
1da177e4 | 456 | CARD_TYPE_SPI_FLASH, |
4d791aad | 457 | CARD_TYPE_EEPROM |
1da177e4 LT |
458 | } card_type; |
459 | int do_rx_crc; /* If we need to CRC incoming packets */ | |
460 | int probe_crc; /* set if we don't yet know */ | |
461 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ | |
462 | u16 rx_desc_head; | |
463 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; | |
464 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; | |
4d791aad | 465 | |
1da177e4 | 466 | u16 frag_seq, frag_len, frag_no; |
4d791aad CP |
467 | u8 frag_source[6]; |
468 | ||
1da177e4 LT |
469 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
470 | u8 group_cipher_suite, pairwise_cipher_suite; | |
471 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
4d791aad | 472 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
1da177e4 LT |
473 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
474 | ||
475 | u16 host_info_base; | |
4d791aad | 476 | struct host_info_struct { |
1da177e4 LT |
477 | /* NB this is matched to the hardware, don't change. */ |
478 | u8 volatile int_status; | |
479 | u8 volatile int_mask; | |
480 | u8 volatile lockout_host; | |
481 | u8 volatile lockout_mac; | |
482 | ||
483 | u16 tx_buff_pos; | |
484 | u16 tx_buff_size; | |
485 | u16 tx_desc_pos; | |
486 | u16 tx_desc_count; | |
487 | ||
488 | u16 rx_buff_pos; | |
489 | u16 rx_buff_size; | |
490 | u16 rx_desc_pos; | |
491 | u16 rx_desc_count; | |
4d791aad | 492 | |
1da177e4 | 493 | u16 build_version; |
4d791aad CP |
494 | u16 command_pos; |
495 | ||
1da177e4 LT |
496 | u16 major_version; |
497 | u16 minor_version; | |
4d791aad | 498 | |
1da177e4 LT |
499 | u16 func_ctrl; |
500 | u16 mac_status; | |
501 | u16 generic_IRQ_type; | |
502 | u8 reserved[2]; | |
503 | } host_info; | |
504 | ||
4d791aad | 505 | enum { |
1da177e4 LT |
506 | STATION_STATE_SCANNING, |
507 | STATION_STATE_JOINNING, | |
508 | STATION_STATE_AUTHENTICATING, | |
509 | STATION_STATE_ASSOCIATING, | |
510 | STATION_STATE_READY, | |
511 | STATION_STATE_REASSOCIATING, | |
512 | STATION_STATE_DOWN, | |
513 | STATION_STATE_MGMT_ERROR | |
514 | } station_state; | |
4d791aad | 515 | |
1da177e4 LT |
516 | int operating_mode, power_mode; |
517 | time_t last_qual; | |
518 | int beacons_this_sec; | |
519 | int channel; | |
520 | int reg_domain, config_reg_domain; | |
521 | int tx_rate; | |
522 | int auto_tx_rate; | |
523 | int rts_threshold; | |
524 | int frag_threshold; | |
525 | int long_retry, short_retry; | |
526 | int preamble; | |
527 | int default_beacon_period, beacon_period, listen_interval; | |
4d791aad | 528 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
1da177e4 LT |
529 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
530 | enum { | |
531 | SITE_SURVEY_IDLE, | |
532 | SITE_SURVEY_IN_PROGRESS, | |
4d791aad | 533 | SITE_SURVEY_COMPLETED |
1da177e4 | 534 | } site_survey_state; |
6e33e30d | 535 | unsigned long last_survey; |
1da177e4 LT |
536 | |
537 | int station_was_associated, station_is_associated; | |
538 | int fast_scan; | |
4d791aad | 539 | |
1da177e4 LT |
540 | struct bss_info { |
541 | int channel; | |
542 | int SSIDsize; | |
543 | int RSSI; | |
544 | int UsingWEP; | |
545 | int preamble; | |
546 | int beacon_period; | |
547 | int BSStype; | |
548 | u8 BSSID[6]; | |
549 | u8 SSID[MAX_SSID_LENGTH]; | |
550 | } BSSinfo[MAX_BSS_ENTRIES]; | |
551 | int BSS_list_entries, current_BSS; | |
4d791aad | 552 | int connect_to_any_BSS; |
1da177e4 LT |
553 | int SSID_size, new_SSID_size; |
554 | u8 CurrentBSSID[6], BSSID[6]; | |
555 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; | |
556 | u64 last_beacon_timestamp; | |
557 | u8 rx_buf[MAX_WIRELESS_BODY]; | |
1da177e4 LT |
558 | }; |
559 | ||
8830cb67 | 560 | static u8 atmel_basic_rates[4] = {0x82, 0x84, 0x0b, 0x16}; |
1da177e4 LT |
561 | |
562 | static const struct { | |
563 | int reg_domain; | |
564 | int min, max; | |
4d791aad | 565 | char *name; |
1da177e4 LT |
566 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
567 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, | |
568 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, | |
569 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, | |
4d791aad | 570 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
1da177e4 LT |
571 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
572 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, | |
573 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; | |
574 | ||
575 | static void build_wpa_mib(struct atmel_private *priv); | |
576 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
4d791aad | 577 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
2f26e8af | 578 | const unsigned char *src, u16 len); |
4d791aad CP |
579 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
580 | u16 src, u16 len); | |
1da177e4 LT |
581 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
582 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); | |
583 | static int atmel_lock_mac(struct atmel_private *priv); | |
584 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); | |
585 | static void atmel_command_irq(struct atmel_private *priv); | |
586 | static int atmel_validate_channel(struct atmel_private *priv, int channel); | |
4d791aad | 587 | static void atmel_management_frame(struct atmel_private *priv, |
2c706002 | 588 | struct ieee80211_hdr *header, |
1da177e4 LT |
589 | u16 frame_len, u8 rssi); |
590 | static void atmel_management_timer(u_long a); | |
4d791aad CP |
591 | static void atmel_send_command(struct atmel_private *priv, int command, |
592 | void *cmd, int cmd_size); | |
593 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
594 | void *cmd, int cmd_size); | |
595 | static void atmel_transmit_management_frame(struct atmel_private *priv, | |
2c706002 | 596 | struct ieee80211_hdr *header, |
1da177e4 LT |
597 | u8 *body, int body_len); |
598 | ||
599 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); | |
4d791aad CP |
600 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
601 | u8 data); | |
602 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, | |
603 | u16 data); | |
604 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, | |
605 | u8 *data, int data_len); | |
606 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, | |
607 | u8 *data, int data_len); | |
1da177e4 LT |
608 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
609 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); | |
610 | static void atmel_smooth_qual(struct atmel_private *priv); | |
611 | static void atmel_writeAR(struct net_device *dev, u16 data); | |
612 | static int probe_atmel_card(struct net_device *dev); | |
5c877fe5 | 613 | static int reset_atmel_card(struct net_device *dev); |
1da177e4 LT |
614 | static void atmel_enter_state(struct atmel_private *priv, int new_state); |
615 | int atmel_open (struct net_device *dev); | |
616 | ||
617 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) | |
618 | { | |
619 | return priv->host_info_base + offset; | |
620 | } | |
621 | ||
622 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) | |
623 | { | |
624 | return priv->host_info.command_pos + offset; | |
625 | } | |
626 | ||
4d791aad | 627 | static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
628 | { |
629 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; | |
630 | } | |
631 | ||
4d791aad | 632 | static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
633 | { |
634 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; | |
635 | } | |
636 | ||
637 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) | |
638 | { | |
639 | return inb(dev->base_addr + offset); | |
640 | } | |
641 | ||
642 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) | |
643 | { | |
644 | outb(data, dev->base_addr + offset); | |
645 | } | |
646 | ||
647 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) | |
648 | { | |
649 | return inw(dev->base_addr + offset); | |
650 | } | |
651 | ||
652 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) | |
653 | { | |
654 | outw(data, dev->base_addr + offset); | |
655 | } | |
656 | ||
657 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) | |
658 | { | |
4d791aad | 659 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
660 | return atmel_read8(priv->dev, DR); |
661 | } | |
662 | ||
663 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) | |
664 | { | |
4d791aad | 665 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
666 | atmel_write8(priv->dev, DR, data); |
667 | } | |
668 | ||
669 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) | |
670 | { | |
4d791aad | 671 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
672 | return atmel_read16(priv->dev, DR); |
673 | } | |
674 | ||
675 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) | |
676 | { | |
4d791aad | 677 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
678 | atmel_write16(priv->dev, DR, data); |
679 | } | |
680 | ||
681 | static const struct iw_handler_def atmel_handler_def; | |
682 | ||
683 | static void tx_done_irq(struct atmel_private *priv) | |
684 | { | |
685 | int i; | |
686 | ||
4d791aad | 687 | for (i = 0; |
1da177e4 LT |
688 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
689 | i < priv->host_info.tx_desc_count; | |
690 | i++) { | |
1da177e4 LT |
691 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
692 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); | |
693 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); | |
694 | ||
695 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); | |
696 | ||
697 | priv->tx_free_mem += msdu_size; | |
698 | priv->tx_desc_free++; | |
699 | ||
700 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) | |
701 | priv->tx_buff_head = 0; | |
702 | else | |
703 | priv->tx_buff_head += msdu_size; | |
4d791aad | 704 | |
1da177e4 | 705 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
4d791aad | 706 | priv->tx_desc_head++ ; |
1da177e4 LT |
707 | else |
708 | priv->tx_desc_head = 0; | |
4d791aad | 709 | |
1da177e4 LT |
710 | if (type == TX_PACKET_TYPE_DATA) { |
711 | if (status == TX_STATUS_SUCCESS) | |
736bc924 | 712 | priv->dev->stats.tx_packets++; |
4d791aad | 713 | else |
736bc924 | 714 | priv->dev->stats.tx_errors++; |
1da177e4 LT |
715 | netif_wake_queue(priv->dev); |
716 | } | |
717 | } | |
718 | } | |
719 | ||
720 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) | |
721 | { | |
722 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; | |
723 | ||
4d791aad | 724 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
1da177e4 | 725 | return 0; |
4d791aad | 726 | |
1da177e4 LT |
727 | if (bottom_free >= len) |
728 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; | |
4d791aad | 729 | |
1da177e4 LT |
730 | if (priv->tx_free_mem - bottom_free >= len) { |
731 | priv->tx_buff_tail = 0; | |
732 | return priv->host_info.tx_buff_pos; | |
733 | } | |
4d791aad | 734 | |
1da177e4 LT |
735 | return 0; |
736 | } | |
737 | ||
4d791aad CP |
738 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
739 | u16 len, u16 buff, u8 type) | |
1da177e4 LT |
740 | { |
741 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); | |
742 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); | |
743 | if (!priv->use_wpa) | |
744 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); | |
745 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); | |
746 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); | |
747 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); | |
748 | if (priv->use_wpa) { | |
749 | int cipher_type, cipher_length; | |
750 | if (is_bcast) { | |
751 | cipher_type = priv->group_cipher_suite; | |
4d791aad CP |
752 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
753 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
754 | cipher_length = 8; |
755 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
756 | cipher_length = 12; | |
757 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || | |
758 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { | |
759 | cipher_type = priv->pairwise_cipher_suite; | |
760 | cipher_length = 8; | |
761 | } else { | |
762 | cipher_type = CIPHER_SUITE_NONE; | |
763 | cipher_length = 0; | |
764 | } | |
765 | } else { | |
766 | cipher_type = priv->pairwise_cipher_suite; | |
4d791aad CP |
767 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
768 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
769 | cipher_length = 8; |
770 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
771 | cipher_length = 12; | |
772 | else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 || | |
773 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { | |
774 | cipher_type = priv->group_cipher_suite; | |
775 | cipher_length = 8; | |
776 | } else { | |
777 | cipher_type = CIPHER_SUITE_NONE; | |
778 | cipher_length = 0; | |
779 | } | |
780 | } | |
4d791aad | 781 | |
1da177e4 | 782 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail), |
4d791aad | 783 | cipher_type); |
1da177e4 LT |
784 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
785 | cipher_length); | |
786 | } | |
787 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); | |
788 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); | |
789 | if (priv->tx_desc_previous != priv->tx_desc_tail) | |
790 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); | |
791 | priv->tx_desc_previous = priv->tx_desc_tail; | |
4d791aad | 792 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
1da177e4 LT |
793 | priv->tx_desc_tail++; |
794 | else | |
795 | priv->tx_desc_tail = 0; | |
796 | priv->tx_desc_free--; | |
797 | priv->tx_free_mem -= len; | |
1da177e4 LT |
798 | } |
799 | ||
d0cf9c0d | 800 | static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 801 | { |
00a5ebf8 | 802 | static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
1da177e4 | 803 | struct atmel_private *priv = netdev_priv(dev); |
2c706002 | 804 | struct ieee80211_hdr header; |
1da177e4 LT |
805 | unsigned long flags; |
806 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; | |
4d791aad CP |
807 | |
808 | if (priv->card && priv->present_callback && | |
1da177e4 | 809 | !(*priv->present_callback)(priv->card)) { |
736bc924 | 810 | dev->stats.tx_errors++; |
1da177e4 | 811 | dev_kfree_skb(skb); |
6ed10654 | 812 | return NETDEV_TX_OK; |
1da177e4 | 813 | } |
4d791aad | 814 | |
1da177e4 | 815 | if (priv->station_state != STATION_STATE_READY) { |
736bc924 | 816 | dev->stats.tx_errors++; |
1da177e4 | 817 | dev_kfree_skb(skb); |
6ed10654 | 818 | return NETDEV_TX_OK; |
1da177e4 | 819 | } |
4d791aad | 820 | |
1da177e4 | 821 | /* first ensure the timer func cannot run */ |
4d791aad | 822 | spin_lock_bh(&priv->timerlock); |
1da177e4 | 823 | /* then stop the hardware ISR */ |
4d791aad | 824 | spin_lock_irqsave(&priv->irqlock, flags); |
1da177e4 | 825 | /* nb doing the above in the opposite order will deadlock */ |
4d791aad | 826 | |
1da177e4 | 827 | /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the |
4d791aad CP |
828 | 12 first bytes (containing DA/SA) and put them in the appropriate |
829 | fields of the Wireless Header. Thus the packet length is then the | |
830 | initial + 18 (+30-12) */ | |
831 | ||
1da177e4 | 832 | if (!(buff = find_tx_buff(priv, len + 18))) { |
736bc924 | 833 | dev->stats.tx_dropped++; |
1da177e4 LT |
834 | spin_unlock_irqrestore(&priv->irqlock, flags); |
835 | spin_unlock_bh(&priv->timerlock); | |
836 | netif_stop_queue(dev); | |
5b548140 | 837 | return NETDEV_TX_BUSY; |
1da177e4 | 838 | } |
4d791aad | 839 | |
b453872c | 840 | frame_ctl = IEEE80211_FTYPE_DATA; |
1da177e4 | 841 | header.duration_id = 0; |
2c706002 | 842 | header.seq_ctrl = 0; |
1da177e4 | 843 | if (priv->wep_is_on) |
f13baae4 | 844 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
1da177e4 | 845 | if (priv->operating_mode == IW_MODE_ADHOC) { |
d626f62b | 846 | skb_copy_from_linear_data(skb, &header.addr1, 6); |
1da177e4 LT |
847 | memcpy(&header.addr2, dev->dev_addr, 6); |
848 | memcpy(&header.addr3, priv->BSSID, 6); | |
849 | } else { | |
b453872c | 850 | frame_ctl |= IEEE80211_FCTL_TODS; |
1da177e4 LT |
851 | memcpy(&header.addr1, priv->CurrentBSSID, 6); |
852 | memcpy(&header.addr2, dev->dev_addr, 6); | |
d626f62b | 853 | skb_copy_from_linear_data(skb, &header.addr3, 6); |
1da177e4 | 854 | } |
4d791aad | 855 | |
1da177e4 LT |
856 | if (priv->use_wpa) |
857 | memcpy(&header.addr4, SNAP_RFC1024, 6); | |
858 | ||
2c706002 | 859 | header.frame_control = cpu_to_le16(frame_ctl); |
1da177e4 LT |
860 | /* Copy the wireless header into the card */ |
861 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); | |
862 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ | |
863 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); | |
864 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; | |
4d791aad | 865 | |
1da177e4 LT |
866 | /* low bit of first byte of destination tells us if broadcast */ |
867 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); | |
736bc924 | 868 | dev->stats.tx_bytes += len; |
4d791aad | 869 | |
1da177e4 LT |
870 | spin_unlock_irqrestore(&priv->irqlock, flags); |
871 | spin_unlock_bh(&priv->timerlock); | |
872 | dev_kfree_skb(skb); | |
4d791aad | 873 | |
6ed10654 | 874 | return NETDEV_TX_OK; |
1da177e4 LT |
875 | } |
876 | ||
4d791aad | 877 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
2c706002 | 878 | struct ieee80211_hdr *header, |
1da177e4 LT |
879 | u8 *body, int body_len) |
880 | { | |
881 | u16 buff; | |
4d791aad CP |
882 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
883 | ||
884 | if (!(buff = find_tx_buff(priv, len))) | |
1da177e4 LT |
885 | return; |
886 | ||
887 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); | |
888 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); | |
889 | priv->tx_buff_tail += len; | |
890 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); | |
891 | } | |
4d791aad CP |
892 | |
893 | static void fast_rx_path(struct atmel_private *priv, | |
2c706002 | 894 | struct ieee80211_hdr *header, |
1da177e4 LT |
895 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
896 | { | |
897 | /* fast path: unfragmented packet copy directly into skbuf */ | |
4d791aad CP |
898 | u8 mac4[6]; |
899 | struct sk_buff *skb; | |
1da177e4 | 900 | unsigned char *skbp; |
4d791aad | 901 | |
1da177e4 LT |
902 | /* get the final, mac 4 header field, this tells us encapsulation */ |
903 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); | |
904 | msdu_size -= 6; | |
4d791aad | 905 | |
1da177e4 LT |
906 | if (priv->do_rx_crc) { |
907 | crc = crc32_le(crc, mac4, 6); | |
908 | msdu_size -= 4; | |
909 | } | |
4d791aad | 910 | |
1da177e4 | 911 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
736bc924 | 912 | priv->dev->stats.rx_dropped++; |
1da177e4 LT |
913 | return; |
914 | } | |
915 | ||
916 | skb_reserve(skb, 2); | |
917 | skbp = skb_put(skb, msdu_size + 12); | |
918 | atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size); | |
4d791aad | 919 | |
1da177e4 LT |
920 | if (priv->do_rx_crc) { |
921 | u32 netcrc; | |
922 | crc = crc32_le(crc, skbp + 12, msdu_size); | |
923 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); | |
924 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 925 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
926 | dev_kfree_skb(skb); |
927 | return; | |
928 | } | |
929 | } | |
4d791aad | 930 | |
1da177e4 | 931 | memcpy(skbp, header->addr1, 6); /* destination address */ |
2c706002 | 932 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
933 | memcpy(&skbp[6], header->addr3, 6); |
934 | else | |
935 | memcpy(&skbp[6], header->addr2, 6); /* source address */ | |
4d791aad | 936 | |
1da177e4 | 937 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 938 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 | 939 | netif_rx(skb); |
736bc924 PZ |
940 | priv->dev->stats.rx_bytes += 12 + msdu_size; |
941 | priv->dev->stats.rx_packets++; | |
1da177e4 LT |
942 | } |
943 | ||
944 | /* Test to see if the packet in card memory at packet_loc has a valid CRC | |
4d791aad CP |
945 | It doesn't matter that this is slow: it is only used to proble the first few |
946 | packets. */ | |
1da177e4 LT |
947 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
948 | { | |
949 | int i = msdu_size - 4; | |
950 | u32 netcrc, crc = 0xffffffff; | |
951 | ||
952 | if (msdu_size < 4) | |
953 | return 0; | |
954 | ||
955 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); | |
4d791aad | 956 | |
1da177e4 LT |
957 | atmel_writeAR(priv->dev, packet_loc); |
958 | while (i--) { | |
959 | u8 octet = atmel_read8(priv->dev, DR); | |
960 | crc = crc32_le(crc, &octet, 1); | |
961 | } | |
962 | ||
963 | return (crc ^ 0xffffffff) == netcrc; | |
964 | } | |
965 | ||
4d791aad | 966 | static void frag_rx_path(struct atmel_private *priv, |
2c706002 | 967 | struct ieee80211_hdr *header, |
4d791aad CP |
968 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, |
969 | u8 frag_no, int more_frags) | |
1da177e4 | 970 | { |
4d791aad | 971 | u8 mac4[6]; |
1da177e4 LT |
972 | u8 source[6]; |
973 | struct sk_buff *skb; | |
974 | ||
2c706002 | 975 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
976 | memcpy(source, header->addr3, 6); |
977 | else | |
4d791aad CP |
978 | memcpy(source, header->addr2, 6); |
979 | ||
1da177e4 | 980 | rx_packet_loc += 24; /* skip header */ |
4d791aad | 981 | |
1da177e4 LT |
982 | if (priv->do_rx_crc) |
983 | msdu_size -= 4; | |
984 | ||
985 | if (frag_no == 0) { /* first fragment */ | |
986 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6); | |
987 | msdu_size -= 6; | |
988 | rx_packet_loc += 6; | |
989 | ||
4d791aad | 990 | if (priv->do_rx_crc) |
1da177e4 | 991 | crc = crc32_le(crc, mac4, 6); |
4d791aad | 992 | |
1da177e4 LT |
993 | priv->frag_seq = seq_no; |
994 | priv->frag_no = 1; | |
995 | priv->frag_len = msdu_size; | |
4d791aad | 996 | memcpy(priv->frag_source, source, 6); |
1da177e4 LT |
997 | memcpy(&priv->rx_buf[6], source, 6); |
998 | memcpy(priv->rx_buf, header->addr1, 6); | |
4d791aad | 999 | |
1da177e4 LT |
1000 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
1001 | ||
1002 | if (priv->do_rx_crc) { | |
1003 | u32 netcrc; | |
1004 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); | |
1005 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1006 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 1007 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
1008 | memset(priv->frag_source, 0xff, 6); |
1009 | } | |
1010 | } | |
4d791aad | 1011 | |
1da177e4 LT |
1012 | } else if (priv->frag_no == frag_no && |
1013 | priv->frag_seq == seq_no && | |
1014 | memcmp(priv->frag_source, source, 6) == 0) { | |
4d791aad CP |
1015 | |
1016 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1017 | rx_packet_loc, msdu_size); |
1018 | if (priv->do_rx_crc) { | |
1019 | u32 netcrc; | |
4d791aad CP |
1020 | crc = crc32_le(crc, |
1021 | &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1022 | msdu_size); |
1023 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1024 | if ((crc ^ 0xffffffff) != netcrc) { | |
736bc924 | 1025 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
1026 | memset(priv->frag_source, 0xff, 6); |
1027 | more_frags = 1; /* don't send broken assembly */ | |
1028 | } | |
1029 | } | |
4d791aad | 1030 | |
1da177e4 LT |
1031 | priv->frag_len += msdu_size; |
1032 | priv->frag_no++; | |
1033 | ||
1034 | if (!more_frags) { /* last one */ | |
1035 | memset(priv->frag_source, 0xff, 6); | |
1036 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { | |
736bc924 | 1037 | priv->dev->stats.rx_dropped++; |
1da177e4 LT |
1038 | } else { |
1039 | skb_reserve(skb, 2); | |
4d791aad | 1040 | memcpy(skb_put(skb, priv->frag_len + 12), |
1da177e4 LT |
1041 | priv->rx_buf, |
1042 | priv->frag_len + 12); | |
1da177e4 | 1043 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 1044 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 | 1045 | netif_rx(skb); |
736bc924 PZ |
1046 | priv->dev->stats.rx_bytes += priv->frag_len + 12; |
1047 | priv->dev->stats.rx_packets++; | |
1da177e4 LT |
1048 | } |
1049 | } | |
1da177e4 LT |
1050 | } else |
1051 | priv->wstats.discard.fragment++; | |
1052 | } | |
4d791aad | 1053 | |
1da177e4 LT |
1054 | static void rx_done_irq(struct atmel_private *priv) |
1055 | { | |
1056 | int i; | |
2c706002 | 1057 | struct ieee80211_hdr header; |
4d791aad CP |
1058 | |
1059 | for (i = 0; | |
1da177e4 LT |
1060 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
1061 | i < priv->host_info.rx_desc_count; | |
1062 | i++) { | |
4d791aad | 1063 | |
1da177e4 LT |
1064 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
1065 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); | |
1066 | u32 crc = 0xffffffff; | |
4d791aad | 1067 | |
1da177e4 LT |
1068 | if (status != RX_STATUS_SUCCESS) { |
1069 | if (status == 0xc1) /* determined by experiment */ | |
1070 | priv->wstats.discard.nwid++; | |
1071 | else | |
736bc924 | 1072 | priv->dev->stats.rx_errors++; |
1da177e4 LT |
1073 | goto next; |
1074 | } | |
1075 | ||
1076 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); | |
1077 | rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head)); | |
4d791aad | 1078 | |
1da177e4 | 1079 | if (msdu_size < 30) { |
736bc924 | 1080 | priv->dev->stats.rx_errors++; |
1da177e4 LT |
1081 | goto next; |
1082 | } | |
4d791aad | 1083 | |
2c706002 | 1084 | /* Get header as far as end of seq_ctrl */ |
1da177e4 | 1085 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); |
2c706002 JB |
1086 | frame_ctl = le16_to_cpu(header.frame_control); |
1087 | seq_control = le16_to_cpu(header.seq_ctrl); | |
1da177e4 | 1088 | |
4d791aad CP |
1089 | /* probe for CRC use here if needed once five packets have |
1090 | arrived with the same crc status, we assume we know what's | |
1091 | happening and stop probing */ | |
1da177e4 | 1092 | if (priv->probe_crc) { |
f13baae4 | 1093 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
1da177e4 LT |
1094 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
1095 | } else { | |
1096 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); | |
1097 | } | |
1098 | if (priv->do_rx_crc) { | |
1099 | if (priv->crc_ok_cnt++ > 5) | |
1100 | priv->probe_crc = 0; | |
1101 | } else { | |
1102 | if (priv->crc_ko_cnt++ > 5) | |
1103 | priv->probe_crc = 0; | |
1104 | } | |
1105 | } | |
4d791aad | 1106 | |
1da177e4 | 1107 | /* don't CRC header when WEP in use */ |
f13baae4 | 1108 | if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) { |
1da177e4 LT |
1109 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
1110 | } | |
1111 | msdu_size -= 24; /* header */ | |
1112 | ||
4d791aad | 1113 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
b453872c JG |
1114 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
1115 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; | |
1116 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; | |
4d791aad CP |
1117 | |
1118 | if (!more_fragments && packet_fragment_no == 0) { | |
1da177e4 LT |
1119 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
1120 | } else { | |
1121 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, | |
1122 | packet_sequence_no, packet_fragment_no, more_fragments); | |
1123 | } | |
1124 | } | |
4d791aad | 1125 | |
b453872c | 1126 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
1da177e4 LT |
1127 | /* copy rest of packet into buffer */ |
1128 | atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); | |
4d791aad | 1129 | |
1da177e4 LT |
1130 | /* we use the same buffer for frag reassembly and control packets */ |
1131 | memset(priv->frag_source, 0xff, 6); | |
4d791aad | 1132 | |
1da177e4 LT |
1133 | if (priv->do_rx_crc) { |
1134 | /* last 4 octets is crc */ | |
1135 | msdu_size -= 4; | |
1136 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); | |
1137 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { | |
736bc924 | 1138 | priv->dev->stats.rx_crc_errors++; |
1da177e4 LT |
1139 | goto next; |
1140 | } | |
1141 | } | |
1142 | ||
1143 | atmel_management_frame(priv, &header, msdu_size, | |
1144 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head))); | |
4d791aad | 1145 | } |
1da177e4 | 1146 | |
4d791aad | 1147 | next: |
1da177e4 | 1148 | /* release descriptor */ |
4d791aad CP |
1149 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
1150 | ||
1da177e4 | 1151 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
4d791aad | 1152 | priv->rx_desc_head++; |
1da177e4 LT |
1153 | else |
1154 | priv->rx_desc_head = 0; | |
1155 | } | |
4d791aad | 1156 | } |
1da177e4 | 1157 | |
7d12e780 | 1158 | static irqreturn_t service_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1159 | { |
1160 | struct net_device *dev = (struct net_device *) dev_id; | |
1161 | struct atmel_private *priv = netdev_priv(dev); | |
1162 | u8 isr; | |
1163 | int i = -1; | |
3370a895 | 1164 | static const u8 irq_order[] = { |
1da177e4 LT |
1165 | ISR_OUT_OF_RANGE, |
1166 | ISR_RxCOMPLETE, | |
1167 | ISR_TxCOMPLETE, | |
1168 | ISR_RxFRAMELOST, | |
1169 | ISR_FATAL_ERROR, | |
1170 | ISR_COMMAND_COMPLETE, | |
1171 | ISR_IBSS_MERGE, | |
1172 | ISR_GENERIC_IRQ | |
1173 | }; | |
1da177e4 | 1174 | |
4d791aad | 1175 | if (priv->card && priv->present_callback && |
1da177e4 LT |
1176 | !(*priv->present_callback)(priv->card)) |
1177 | return IRQ_HANDLED; | |
1178 | ||
1179 | /* In this state upper-level code assumes it can mess with | |
1180 | the card unhampered by interrupts which may change register state. | |
1181 | Note that even though the card shouldn't generate interrupts | |
4d791aad | 1182 | the inturrupt line may be shared. This allows card setup |
1da177e4 LT |
1183 | to go on without disabling interrupts for a long time. */ |
1184 | if (priv->station_state == STATION_STATE_DOWN) | |
1185 | return IRQ_NONE; | |
4d791aad | 1186 | |
1da177e4 LT |
1187 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
1188 | ||
1189 | while (1) { | |
1190 | if (!atmel_lock_mac(priv)) { | |
1191 | /* failed to contact card */ | |
1192 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1193 | return IRQ_HANDLED; | |
1194 | } | |
4d791aad | 1195 | |
1da177e4 LT |
1196 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1197 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1198 | |
1da177e4 LT |
1199 | if (!isr) { |
1200 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ | |
1201 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; | |
1202 | } | |
4d791aad | 1203 | |
1da177e4 | 1204 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
4d791aad | 1205 | |
b4341135 | 1206 | for (i = 0; i < ARRAY_SIZE(irq_order); i++) |
1da177e4 LT |
1207 | if (isr & irq_order[i]) |
1208 | break; | |
4d791aad | 1209 | |
1da177e4 LT |
1210 | if (!atmel_lock_mac(priv)) { |
1211 | /* failed to contact card */ | |
1212 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1213 | return IRQ_HANDLED; | |
1214 | } | |
4d791aad | 1215 | |
1da177e4 LT |
1216 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1217 | isr ^= irq_order[i]; | |
1218 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); | |
1219 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1220 | |
1da177e4 | 1221 | switch (irq_order[i]) { |
4d791aad CP |
1222 | |
1223 | case ISR_OUT_OF_RANGE: | |
1224 | if (priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
1225 | priv->station_state == STATION_STATE_READY) { |
1226 | priv->station_is_associated = 0; | |
1227 | atmel_scan(priv, 1); | |
1228 | } | |
1229 | break; | |
1230 | ||
1231 | case ISR_RxFRAMELOST: | |
1232 | priv->wstats.discard.misc++; | |
1233 | /* fall through */ | |
1234 | case ISR_RxCOMPLETE: | |
4d791aad | 1235 | rx_done_irq(priv); |
1da177e4 | 1236 | break; |
4d791aad | 1237 | |
1da177e4 | 1238 | case ISR_TxCOMPLETE: |
4d791aad | 1239 | tx_done_irq(priv); |
1da177e4 | 1240 | break; |
4d791aad | 1241 | |
1da177e4 LT |
1242 | case ISR_FATAL_ERROR: |
1243 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); | |
1244 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
1245 | break; | |
4d791aad CP |
1246 | |
1247 | case ISR_COMMAND_COMPLETE: | |
1da177e4 LT |
1248 | atmel_command_irq(priv); |
1249 | break; | |
1250 | ||
1251 | case ISR_IBSS_MERGE: | |
4d791aad | 1252 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
1da177e4 LT |
1253 | priv->CurrentBSSID, 6); |
1254 | /* The WPA stuff cares about the current AP address */ | |
1255 | if (priv->use_wpa) | |
1256 | build_wpa_mib(priv); | |
1257 | break; | |
1258 | case ISR_GENERIC_IRQ: | |
1259 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); | |
1260 | break; | |
1261 | } | |
4d791aad | 1262 | } |
1da177e4 LT |
1263 | } |
1264 | ||
4d791aad | 1265 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
1da177e4 LT |
1266 | { |
1267 | struct atmel_private *priv = netdev_priv(dev); | |
1268 | ||
4d791aad | 1269 | /* update the link quality here in case we are seeing no beacons |
1da177e4 LT |
1270 | at all to drive the process */ |
1271 | atmel_smooth_qual(priv); | |
4d791aad | 1272 | |
1da177e4 LT |
1273 | priv->wstats.status = priv->station_state; |
1274 | ||
1275 | if (priv->operating_mode == IW_MODE_INFRA) { | |
1276 | if (priv->station_state != STATION_STATE_READY) { | |
1277 | priv->wstats.qual.qual = 0; | |
1278 | priv->wstats.qual.level = 0; | |
1279 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID | |
1280 | | IW_QUAL_LEVEL_INVALID); | |
1281 | } | |
1282 | priv->wstats.qual.noise = 0; | |
1283 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; | |
1284 | } else { | |
1285 | /* Quality levels cannot be determined in ad-hoc mode, | |
1286 | because we can 'hear' more that one remote station. */ | |
1287 | priv->wstats.qual.qual = 0; | |
1288 | priv->wstats.qual.level = 0; | |
1289 | priv->wstats.qual.noise = 0; | |
1290 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID | |
1291 | | IW_QUAL_LEVEL_INVALID | |
1292 | | IW_QUAL_NOISE_INVALID; | |
1293 | priv->wstats.miss.beacon = 0; | |
1294 | } | |
4d791aad CP |
1295 | |
1296 | return &priv->wstats; | |
1da177e4 LT |
1297 | } |
1298 | ||
1299 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) | |
1300 | { | |
8830cb67 JD |
1301 | if ((new_mtu < 68) || (new_mtu > 2312)) |
1302 | return -EINVAL; | |
1303 | dev->mtu = new_mtu; | |
1304 | return 0; | |
1da177e4 LT |
1305 | } |
1306 | ||
1307 | static int atmel_set_mac_address(struct net_device *dev, void *p) | |
1308 | { | |
1309 | struct sockaddr *addr = p; | |
4d791aad | 1310 | |
8830cb67 | 1311 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
1da177e4 LT |
1312 | return atmel_open(dev); |
1313 | } | |
1314 | ||
1315 | EXPORT_SYMBOL(atmel_open); | |
1316 | ||
4d791aad | 1317 | int atmel_open(struct net_device *dev) |
1da177e4 LT |
1318 | { |
1319 | struct atmel_private *priv = netdev_priv(dev); | |
3c34a5d8 | 1320 | int i, channel, err; |
1da177e4 LT |
1321 | |
1322 | /* any scheduled timer is no longer needed and might screw things up.. */ | |
1323 | del_timer_sync(&priv->management_timer); | |
4d791aad | 1324 | |
1da177e4 LT |
1325 | /* Interrupts will not touch the card once in this state... */ |
1326 | priv->station_state = STATION_STATE_DOWN; | |
1327 | ||
1328 | if (priv->new_SSID_size) { | |
1329 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); | |
1330 | priv->SSID_size = priv->new_SSID_size; | |
1331 | priv->new_SSID_size = 0; | |
1332 | } | |
1333 | priv->BSS_list_entries = 0; | |
1334 | ||
1335 | priv->AuthenticationRequestRetryCnt = 0; | |
1336 | priv->AssociationRequestRetryCnt = 0; | |
1337 | priv->ReAssociationRequestRetryCnt = 0; | |
1338 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
1339 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; | |
1340 | ||
1341 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
1342 | priv->station_is_associated = 0; | |
1343 | ||
3c34a5d8 DW |
1344 | err = reset_atmel_card(dev); |
1345 | if (err) | |
1346 | return err; | |
1da177e4 LT |
1347 | |
1348 | if (priv->config_reg_domain) { | |
1349 | priv->reg_domain = priv->config_reg_domain; | |
1350 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); | |
1351 | } else { | |
1352 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); | |
b4341135 | 1353 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1354 | if (priv->reg_domain == channel_table[i].reg_domain) |
1355 | break; | |
b4341135 | 1356 | if (i == ARRAY_SIZE(channel_table)) { |
1da177e4 LT |
1357 | priv->reg_domain = REG_DOMAIN_MKK1; |
1358 | printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name); | |
4d791aad | 1359 | } |
1da177e4 | 1360 | } |
4d791aad | 1361 | |
1da177e4 LT |
1362 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
1363 | priv->channel = channel; | |
1364 | ||
4d791aad CP |
1365 | /* this moves station_state on.... */ |
1366 | atmel_scan(priv, 1); | |
1da177e4 LT |
1367 | |
1368 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ | |
1369 | return 0; | |
1370 | } | |
1371 | ||
4d791aad | 1372 | static int atmel_close(struct net_device *dev) |
1da177e4 LT |
1373 | { |
1374 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1375 | |
9a6301c1 DW |
1376 | /* Send event to userspace that we are disassociating */ |
1377 | if (priv->station_state == STATION_STATE_READY) { | |
1378 | union iwreq_data wrqu; | |
1379 | ||
1380 | wrqu.data.length = 0; | |
1381 | wrqu.data.flags = 0; | |
1382 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1383 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
1384 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1385 | } | |
1386 | ||
1da177e4 | 1387 | atmel_enter_state(priv, STATION_STATE_DOWN); |
4d791aad CP |
1388 | |
1389 | if (priv->bus_type == BUS_TYPE_PCCARD) | |
1da177e4 LT |
1390 | atmel_write16(dev, GCR, 0x0060); |
1391 | atmel_write16(dev, GCR, 0x0040); | |
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | static int atmel_validate_channel(struct atmel_private *priv, int channel) | |
1396 | { | |
1397 | /* check that channel is OK, if so return zero, | |
1398 | else return suitable default channel */ | |
1399 | int i; | |
1400 | ||
b4341135 | 1401 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1402 | if (priv->reg_domain == channel_table[i].reg_domain) { |
1403 | if (channel >= channel_table[i].min && | |
1404 | channel <= channel_table[i].max) | |
1405 | return 0; | |
1406 | else | |
1407 | return channel_table[i].min; | |
1408 | } | |
1409 | return 0; | |
1410 | } | |
1411 | ||
1412 | static int atmel_proc_output (char *buf, struct atmel_private *priv) | |
1413 | { | |
1414 | int i; | |
1415 | char *p = buf; | |
1416 | char *s, *r, *c; | |
4d791aad CP |
1417 | |
1418 | p += sprintf(p, "Driver version:\t\t%d.%d\n", | |
1419 | DRIVER_MAJOR, DRIVER_MINOR); | |
1420 | ||
1da177e4 | 1421 | if (priv->station_state != STATION_STATE_DOWN) { |
4d791aad CP |
1422 | p += sprintf(p, "Firmware version:\t%d.%d build %d\n" |
1423 | "Firmware location:\t", | |
1da177e4 LT |
1424 | priv->host_info.major_version, |
1425 | priv->host_info.minor_version, | |
1426 | priv->host_info.build_version); | |
4d791aad CP |
1427 | |
1428 | if (priv->card_type != CARD_TYPE_EEPROM) | |
1da177e4 | 1429 | p += sprintf(p, "on card\n"); |
4d791aad CP |
1430 | else if (priv->firmware) |
1431 | p += sprintf(p, "%s loaded by host\n", | |
1432 | priv->firmware_id); | |
1da177e4 | 1433 | else |
4d791aad CP |
1434 | p += sprintf(p, "%s loaded by hotplug\n", |
1435 | priv->firmware_id); | |
1436 | ||
1437 | switch (priv->card_type) { | |
8830cb67 JD |
1438 | case CARD_TYPE_PARALLEL_FLASH: |
1439 | c = "Parallel flash"; | |
1440 | break; | |
1441 | case CARD_TYPE_SPI_FLASH: | |
1442 | c = "SPI flash\n"; | |
1443 | break; | |
1444 | case CARD_TYPE_EEPROM: | |
1445 | c = "EEPROM"; | |
1446 | break; | |
1447 | default: | |
1448 | c = "<unknown>"; | |
1da177e4 LT |
1449 | } |
1450 | ||
1da177e4 | 1451 | r = "<unknown>"; |
b4341135 | 1452 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1453 | if (priv->reg_domain == channel_table[i].reg_domain) |
1454 | r = channel_table[i].name; | |
4d791aad | 1455 | |
1da177e4 LT |
1456 | p += sprintf(p, "MAC memory type:\t%s\n", c); |
1457 | p += sprintf(p, "Regulatory domain:\t%s\n", r); | |
4d791aad | 1458 | p += sprintf(p, "Host CRC checking:\t%s\n", |
1da177e4 LT |
1459 | priv->do_rx_crc ? "On" : "Off"); |
1460 | p += sprintf(p, "WPA-capable firmware:\t%s\n", | |
1461 | priv->use_wpa ? "Yes" : "No"); | |
1462 | } | |
4d791aad | 1463 | |
8830cb67 JD |
1464 | switch (priv->station_state) { |
1465 | case STATION_STATE_SCANNING: | |
1466 | s = "Scanning"; | |
1467 | break; | |
1468 | case STATION_STATE_JOINNING: | |
1469 | s = "Joining"; | |
1470 | break; | |
1471 | case STATION_STATE_AUTHENTICATING: | |
1472 | s = "Authenticating"; | |
1473 | break; | |
1474 | case STATION_STATE_ASSOCIATING: | |
1475 | s = "Associating"; | |
1476 | break; | |
1477 | case STATION_STATE_READY: | |
1478 | s = "Ready"; | |
1479 | break; | |
1480 | case STATION_STATE_REASSOCIATING: | |
1481 | s = "Reassociating"; | |
1482 | break; | |
1483 | case STATION_STATE_MGMT_ERROR: | |
1484 | s = "Management error"; | |
1485 | break; | |
1486 | case STATION_STATE_DOWN: | |
1487 | s = "Down"; | |
1488 | break; | |
1489 | default: | |
1490 | s = "<unknown>"; | |
1da177e4 | 1491 | } |
4d791aad | 1492 | |
1da177e4 | 1493 | p += sprintf(p, "Current state:\t\t%s\n", s); |
4d791aad | 1494 | return p - buf; |
1da177e4 LT |
1495 | } |
1496 | ||
1497 | static int atmel_read_proc(char *page, char **start, off_t off, | |
1498 | int count, int *eof, void *data) | |
1499 | { | |
8830cb67 | 1500 | struct atmel_private *priv = data; |
1da177e4 | 1501 | int len = atmel_proc_output (page, priv); |
8830cb67 JD |
1502 | if (len <= off+count) |
1503 | *eof = 1; | |
1504 | *start = page + off; | |
1505 | len -= off; | |
1506 | if (len > count) | |
1507 | len = count; | |
1508 | if (len < 0) | |
1509 | len = 0; | |
1510 | return len; | |
1da177e4 LT |
1511 | } |
1512 | ||
824f1dfd SH |
1513 | static const struct net_device_ops atmel_netdev_ops = { |
1514 | .ndo_open = atmel_open, | |
1515 | .ndo_stop = atmel_close, | |
1516 | .ndo_change_mtu = atmel_change_mtu, | |
1517 | .ndo_set_mac_address = atmel_set_mac_address, | |
1518 | .ndo_start_xmit = start_tx, | |
1519 | .ndo_do_ioctl = atmel_ioctl, | |
824f1dfd SH |
1520 | .ndo_validate_addr = eth_validate_addr, |
1521 | }; | |
1522 | ||
4d791aad CP |
1523 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
1524 | const AtmelFWType fw_type, | |
1525 | struct device *sys_dev, | |
1526 | int (*card_present)(void *), void *card) | |
1da177e4 | 1527 | { |
5bc4c36d | 1528 | struct proc_dir_entry *ent; |
1da177e4 LT |
1529 | struct net_device *dev; |
1530 | struct atmel_private *priv; | |
1531 | int rc; | |
1532 | ||
1533 | /* Create the network device object. */ | |
8830cb67 | 1534 | dev = alloc_etherdev(sizeof(*priv)); |
41de8d4c | 1535 | if (!dev) |
1da177e4 | 1536 | return NULL; |
41de8d4c | 1537 | |
1da177e4 | 1538 | if (dev_alloc_name(dev, dev->name) < 0) { |
4d791aad | 1539 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
1da177e4 LT |
1540 | goto err_out_free; |
1541 | } | |
1542 | ||
1543 | priv = netdev_priv(dev); | |
1544 | priv->dev = dev; | |
1545 | priv->sys_dev = sys_dev; | |
1546 | priv->present_callback = card_present; | |
1547 | priv->card = card; | |
1548 | priv->firmware = NULL; | |
1549 | priv->firmware_id[0] = '\0'; | |
1550 | priv->firmware_type = fw_type; | |
1551 | if (firmware) /* module parameter */ | |
1552 | strcpy(priv->firmware_id, firmware); | |
1553 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; | |
1554 | priv->station_state = STATION_STATE_DOWN; | |
1555 | priv->do_rx_crc = 0; | |
1556 | /* For PCMCIA cards, some chips need CRC, some don't | |
1557 | so we have to probe. */ | |
1558 | if (priv->bus_type == BUS_TYPE_PCCARD) { | |
1559 | priv->probe_crc = 1; | |
1560 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; | |
1561 | } else | |
1562 | priv->probe_crc = 0; | |
1da177e4 LT |
1563 | priv->last_qual = jiffies; |
1564 | priv->last_beacon_timestamp = 0; | |
1565 | memset(priv->frag_source, 0xff, sizeof(priv->frag_source)); | |
1566 | memset(priv->BSSID, 0, 6); | |
1567 | priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */ | |
1568 | priv->station_was_associated = 0; | |
4d791aad | 1569 | |
1da177e4 LT |
1570 | priv->last_survey = jiffies; |
1571 | priv->preamble = LONG_PREAMBLE; | |
1572 | priv->operating_mode = IW_MODE_INFRA; | |
1573 | priv->connect_to_any_BSS = 0; | |
1574 | priv->config_reg_domain = 0; | |
1575 | priv->reg_domain = 0; | |
1576 | priv->tx_rate = 3; | |
1577 | priv->auto_tx_rate = 1; | |
1578 | priv->channel = 4; | |
1579 | priv->power_mode = 0; | |
1580 | priv->SSID[0] = '\0'; | |
1581 | priv->SSID_size = 0; | |
1582 | priv->new_SSID_size = 0; | |
1583 | priv->frag_threshold = 2346; | |
1584 | priv->rts_threshold = 2347; | |
1585 | priv->short_retry = 7; | |
1586 | priv->long_retry = 4; | |
1587 | ||
1588 | priv->wep_is_on = 0; | |
1589 | priv->default_key = 0; | |
1590 | priv->encryption_level = 0; | |
1591 | priv->exclude_unencrypted = 0; | |
1592 | priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1593 | priv->use_wpa = 0; | |
1594 | memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); | |
1595 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); | |
1596 | ||
1597 | priv->default_beacon_period = priv->beacon_period = 100; | |
1598 | priv->listen_interval = 1; | |
1599 | ||
1600 | init_timer(&priv->management_timer); | |
1601 | spin_lock_init(&priv->irqlock); | |
1602 | spin_lock_init(&priv->timerlock); | |
1603 | priv->management_timer.function = atmel_management_timer; | |
1604 | priv->management_timer.data = (unsigned long) dev; | |
4d791aad | 1605 | |
824f1dfd SH |
1606 | dev->netdev_ops = &atmel_netdev_ops; |
1607 | dev->wireless_handlers = &atmel_handler_def; | |
1da177e4 LT |
1608 | dev->irq = irq; |
1609 | dev->base_addr = port; | |
4d791aad | 1610 | |
1da177e4 | 1611 | SET_NETDEV_DEV(dev, sys_dev); |
4d791aad | 1612 | |
1fb9df5d | 1613 | if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { |
4d791aad | 1614 | printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc); |
1da177e4 LT |
1615 | goto err_out_free; |
1616 | } | |
1617 | ||
4d791aad | 1618 | if (!request_region(dev->base_addr, 32, |
b16a228d | 1619 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
1da177e4 LT |
1620 | goto err_out_irq; |
1621 | } | |
4d791aad | 1622 | |
1da177e4 LT |
1623 | if (register_netdev(dev)) |
1624 | goto err_out_res; | |
4d791aad | 1625 | |
8830cb67 | 1626 | if (!probe_atmel_card(dev)) { |
1da177e4 LT |
1627 | unregister_netdev(dev); |
1628 | goto err_out_res; | |
1629 | } | |
4d791aad | 1630 | |
1da177e4 | 1631 | netif_carrier_off(dev); |
4d791aad | 1632 | |
5bc4c36d CL |
1633 | ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); |
1634 | if (!ent) | |
1635 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); | |
4d791aad | 1636 | |
e174961c JB |
1637 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", |
1638 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr); | |
4d791aad | 1639 | |
1da177e4 | 1640 | return dev; |
4d791aad CP |
1641 | |
1642 | err_out_res: | |
8830cb67 | 1643 | release_region(dev->base_addr, 32); |
4d791aad | 1644 | err_out_irq: |
1da177e4 | 1645 | free_irq(dev->irq, dev); |
4d791aad | 1646 | err_out_free: |
1da177e4 LT |
1647 | free_netdev(dev); |
1648 | return NULL; | |
1649 | } | |
1650 | ||
1651 | EXPORT_SYMBOL(init_atmel_card); | |
1652 | ||
b16a228d | 1653 | void stop_atmel_card(struct net_device *dev) |
1da177e4 LT |
1654 | { |
1655 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1656 | |
1da177e4 | 1657 | /* put a brick on it... */ |
4d791aad | 1658 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
1659 | atmel_write16(dev, GCR, 0x0060); |
1660 | atmel_write16(dev, GCR, 0x0040); | |
4d791aad | 1661 | |
1da177e4 LT |
1662 | del_timer_sync(&priv->management_timer); |
1663 | unregister_netdev(dev); | |
1664 | remove_proc_entry("driver/atmel", NULL); | |
1665 | free_irq(dev->irq, dev); | |
b4558ea9 | 1666 | kfree(priv->firmware); |
b16a228d | 1667 | release_region(dev->base_addr, 32); |
1da177e4 LT |
1668 | free_netdev(dev); |
1669 | } | |
1670 | ||
1671 | EXPORT_SYMBOL(stop_atmel_card); | |
1672 | ||
1673 | static int atmel_set_essid(struct net_device *dev, | |
1674 | struct iw_request_info *info, | |
1675 | struct iw_point *dwrq, | |
1676 | char *extra) | |
1677 | { | |
1678 | struct atmel_private *priv = netdev_priv(dev); | |
1679 | ||
1680 | /* Check if we asked for `any' */ | |
8830cb67 | 1681 | if (dwrq->flags == 0) { |
1da177e4 LT |
1682 | priv->connect_to_any_BSS = 1; |
1683 | } else { | |
1684 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1685 | ||
1686 | priv->connect_to_any_BSS = 0; | |
4d791aad | 1687 | |
1da177e4 | 1688 | /* Check the size of the string */ |
6a484db4 | 1689 | if (dwrq->length > MAX_SSID_LENGTH) |
4d791aad | 1690 | return -E2BIG; |
1da177e4 LT |
1691 | if (index != 0) |
1692 | return -EINVAL; | |
4d791aad | 1693 | |
6a484db4 JT |
1694 | memcpy(priv->new_SSID, extra, dwrq->length); |
1695 | priv->new_SSID_size = dwrq->length; | |
1da177e4 LT |
1696 | } |
1697 | ||
1698 | return -EINPROGRESS; | |
1699 | } | |
1700 | ||
1701 | static int atmel_get_essid(struct net_device *dev, | |
1702 | struct iw_request_info *info, | |
1703 | struct iw_point *dwrq, | |
1704 | char *extra) | |
1705 | { | |
1706 | struct atmel_private *priv = netdev_priv(dev); | |
1707 | ||
1708 | /* Get the current SSID */ | |
1709 | if (priv->new_SSID_size != 0) { | |
1710 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); | |
d6a13a24 | 1711 | dwrq->length = priv->new_SSID_size; |
1da177e4 LT |
1712 | } else { |
1713 | memcpy(extra, priv->SSID, priv->SSID_size); | |
d6a13a24 | 1714 | dwrq->length = priv->SSID_size; |
1da177e4 | 1715 | } |
4d791aad | 1716 | |
1da177e4 LT |
1717 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
1718 | ||
1719 | return 0; | |
1720 | } | |
1721 | ||
1722 | static int atmel_get_wap(struct net_device *dev, | |
1723 | struct iw_request_info *info, | |
1724 | struct sockaddr *awrq, | |
1725 | char *extra) | |
1726 | { | |
1727 | struct atmel_private *priv = netdev_priv(dev); | |
1728 | memcpy(awrq->sa_data, priv->CurrentBSSID, 6); | |
1729 | awrq->sa_family = ARPHRD_ETHER; | |
1730 | ||
1731 | return 0; | |
1732 | } | |
1733 | ||
1734 | static int atmel_set_encode(struct net_device *dev, | |
1735 | struct iw_request_info *info, | |
1736 | struct iw_point *dwrq, | |
1737 | char *extra) | |
1738 | { | |
1739 | struct atmel_private *priv = netdev_priv(dev); | |
1740 | ||
1741 | /* Basic checking: do we have a key to set ? | |
1742 | * Note : with the new API, it's impossible to get a NULL pointer. | |
1743 | * Therefore, we need to check a key size == 0 instead. | |
1744 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag | |
1745 | * when no key is present (only change flags), but older versions | |
1746 | * don't do it. - Jean II */ | |
1747 | if (dwrq->length > 0) { | |
1748 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1749 | int current_index = priv->default_key; | |
1750 | /* Check the size of the key */ | |
1751 | if (dwrq->length > 13) { | |
1752 | return -EINVAL; | |
1753 | } | |
1754 | /* Check the index (none -> use current) */ | |
1755 | if (index < 0 || index >= 4) | |
1756 | index = current_index; | |
1757 | else | |
1758 | priv->default_key = index; | |
1759 | /* Set the length */ | |
1760 | if (dwrq->length > 5) | |
1761 | priv->wep_key_len[index] = 13; | |
1762 | else | |
1763 | if (dwrq->length > 0) | |
1764 | priv->wep_key_len[index] = 5; | |
1765 | else | |
1766 | /* Disable the key */ | |
1767 | priv->wep_key_len[index] = 0; | |
1768 | /* Check if the key is not marked as invalid */ | |
5c877fe5 | 1769 | if (!(dwrq->flags & IW_ENCODE_NOKEY)) { |
1da177e4 LT |
1770 | /* Cleanup */ |
1771 | memset(priv->wep_keys[index], 0, 13); | |
1772 | /* Copy the key in the driver */ | |
1773 | memcpy(priv->wep_keys[index], extra, dwrq->length); | |
1774 | } | |
1775 | /* WE specify that if a valid key is set, encryption | |
1776 | * should be enabled (user may turn it off later) | |
1777 | * This is also how "iwconfig ethX key on" works */ | |
4d791aad | 1778 | if (index == current_index && |
1da177e4 LT |
1779 | priv->wep_key_len[index] > 0) { |
1780 | priv->wep_is_on = 1; | |
1781 | priv->exclude_unencrypted = 1; | |
1782 | if (priv->wep_key_len[index] > 5) { | |
9a6301c1 | 1783 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
1da177e4 LT |
1784 | priv->encryption_level = 2; |
1785 | } else { | |
9a6301c1 | 1786 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
1da177e4 LT |
1787 | priv->encryption_level = 1; |
1788 | } | |
1789 | } | |
1790 | } else { | |
1791 | /* Do we want to just set the transmit key index ? */ | |
1792 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1793 | if (index >= 0 && index < 4) { |
1da177e4 LT |
1794 | priv->default_key = index; |
1795 | } else | |
1796 | /* Don't complain if only change the mode */ | |
93a3b607 | 1797 | if (!(dwrq->flags & IW_ENCODE_MODE)) |
1da177e4 | 1798 | return -EINVAL; |
1da177e4 LT |
1799 | } |
1800 | /* Read the flags */ | |
4d791aad | 1801 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
1da177e4 | 1802 | priv->wep_is_on = 0; |
4d791aad | 1803 | priv->encryption_level = 0; |
1da177e4 LT |
1804 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
1805 | } else { | |
1806 | priv->wep_is_on = 1; | |
1807 | if (priv->wep_key_len[priv->default_key] > 5) { | |
1808 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1809 | priv->encryption_level = 2; | |
1810 | } else { | |
1811 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1812 | priv->encryption_level = 1; | |
1813 | } | |
1814 | } | |
4d791aad | 1815 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
1da177e4 | 1816 | priv->exclude_unencrypted = 1; |
8830cb67 | 1817 | if (dwrq->flags & IW_ENCODE_OPEN) |
1da177e4 | 1818 | priv->exclude_unencrypted = 0; |
4d791aad | 1819 | |
1da177e4 LT |
1820 | return -EINPROGRESS; /* Call commit handler */ |
1821 | } | |
1822 | ||
1da177e4 LT |
1823 | static int atmel_get_encode(struct net_device *dev, |
1824 | struct iw_request_info *info, | |
1825 | struct iw_point *dwrq, | |
1826 | char *extra) | |
1827 | { | |
1828 | struct atmel_private *priv = netdev_priv(dev); | |
1829 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1830 | |
1da177e4 LT |
1831 | if (!priv->wep_is_on) |
1832 | dwrq->flags = IW_ENCODE_DISABLED; | |
b16a228d | 1833 | else { |
1834 | if (priv->exclude_unencrypted) | |
1835 | dwrq->flags = IW_ENCODE_RESTRICTED; | |
1836 | else | |
1837 | dwrq->flags = IW_ENCODE_OPEN; | |
1838 | } | |
1da177e4 LT |
1839 | /* Which key do we want ? -1 -> tx index */ |
1840 | if (index < 0 || index >= 4) | |
1841 | index = priv->default_key; | |
1842 | dwrq->flags |= index + 1; | |
1843 | /* Copy the key to the user buffer */ | |
1844 | dwrq->length = priv->wep_key_len[index]; | |
1845 | if (dwrq->length > 16) { | |
8830cb67 | 1846 | dwrq->length = 0; |
1da177e4 LT |
1847 | } else { |
1848 | memset(extra, 0, 16); | |
1849 | memcpy(extra, priv->wep_keys[index], dwrq->length); | |
1850 | } | |
4d791aad | 1851 | |
1da177e4 LT |
1852 | return 0; |
1853 | } | |
1854 | ||
9a6301c1 DW |
1855 | static int atmel_set_encodeext(struct net_device *dev, |
1856 | struct iw_request_info *info, | |
1857 | union iwreq_data *wrqu, | |
1858 | char *extra) | |
1859 | { | |
1860 | struct atmel_private *priv = netdev_priv(dev); | |
1861 | struct iw_point *encoding = &wrqu->encoding; | |
1862 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
0d467502 | 1863 | int idx, key_len, alg = ext->alg, set_key = 1; |
9a6301c1 DW |
1864 | |
1865 | /* Determine and validate the key index */ | |
1866 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1867 | if (idx) { | |
2c706002 | 1868 | if (idx < 1 || idx > 4) |
9a6301c1 DW |
1869 | return -EINVAL; |
1870 | idx--; | |
1871 | } else | |
1872 | idx = priv->default_key; | |
1873 | ||
0d467502 DW |
1874 | if (encoding->flags & IW_ENCODE_DISABLED) |
1875 | alg = IW_ENCODE_ALG_NONE; | |
9a6301c1 | 1876 | |
0d467502 | 1877 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
9a6301c1 | 1878 | priv->default_key = idx; |
0d467502 DW |
1879 | set_key = ext->key_len > 0 ? 1 : 0; |
1880 | } | |
9a6301c1 | 1881 | |
0d467502 DW |
1882 | if (set_key) { |
1883 | /* Set the requested key first */ | |
1884 | switch (alg) { | |
1885 | case IW_ENCODE_ALG_NONE: | |
1886 | priv->wep_is_on = 0; | |
1887 | priv->encryption_level = 0; | |
1888 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1889 | break; | |
1890 | case IW_ENCODE_ALG_WEP: | |
1891 | if (ext->key_len > 5) { | |
1892 | priv->wep_key_len[idx] = 13; | |
1893 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1894 | priv->encryption_level = 2; | |
1895 | } else if (ext->key_len > 0) { | |
1896 | priv->wep_key_len[idx] = 5; | |
1897 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1898 | priv->encryption_level = 1; | |
1899 | } else { | |
1900 | return -EINVAL; | |
1901 | } | |
1902 | priv->wep_is_on = 1; | |
1903 | memset(priv->wep_keys[idx], 0, 13); | |
1904 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); | |
1905 | memcpy(priv->wep_keys[idx], ext->key, key_len); | |
1906 | break; | |
1907 | default: | |
9a6301c1 DW |
1908 | return -EINVAL; |
1909 | } | |
9a6301c1 DW |
1910 | } |
1911 | ||
1912 | return -EINPROGRESS; | |
1913 | } | |
1914 | ||
1915 | static int atmel_get_encodeext(struct net_device *dev, | |
1916 | struct iw_request_info *info, | |
1917 | union iwreq_data *wrqu, | |
1918 | char *extra) | |
1919 | { | |
1920 | struct atmel_private *priv = netdev_priv(dev); | |
1921 | struct iw_point *encoding = &wrqu->encoding; | |
1922 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
1923 | int idx, max_key_len; | |
1924 | ||
1925 | max_key_len = encoding->length - sizeof(*ext); | |
1926 | if (max_key_len < 0) | |
1927 | return -EINVAL; | |
1928 | ||
1929 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1930 | if (idx) { | |
2c706002 | 1931 | if (idx < 1 || idx > 4) |
9a6301c1 DW |
1932 | return -EINVAL; |
1933 | idx--; | |
1934 | } else | |
1935 | idx = priv->default_key; | |
1936 | ||
1937 | encoding->flags = idx + 1; | |
1938 | memset(ext, 0, sizeof(*ext)); | |
5c877fe5 | 1939 | |
9a6301c1 DW |
1940 | if (!priv->wep_is_on) { |
1941 | ext->alg = IW_ENCODE_ALG_NONE; | |
1942 | ext->key_len = 0; | |
1943 | encoding->flags |= IW_ENCODE_DISABLED; | |
1944 | } else { | |
1945 | if (priv->encryption_level > 0) | |
1946 | ext->alg = IW_ENCODE_ALG_WEP; | |
1947 | else | |
1948 | return -EINVAL; | |
1949 | ||
1950 | ext->key_len = priv->wep_key_len[idx]; | |
1951 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); | |
1952 | encoding->flags |= IW_ENCODE_ENABLED; | |
1953 | } | |
1954 | ||
1955 | return 0; | |
1956 | } | |
1957 | ||
1958 | static int atmel_set_auth(struct net_device *dev, | |
1959 | struct iw_request_info *info, | |
1960 | union iwreq_data *wrqu, char *extra) | |
1961 | { | |
1962 | struct atmel_private *priv = netdev_priv(dev); | |
1963 | struct iw_param *param = &wrqu->param; | |
1964 | ||
1965 | switch (param->flags & IW_AUTH_INDEX) { | |
1966 | case IW_AUTH_WPA_VERSION: | |
1967 | case IW_AUTH_CIPHER_PAIRWISE: | |
1968 | case IW_AUTH_CIPHER_GROUP: | |
1969 | case IW_AUTH_KEY_MGMT: | |
1970 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
1971 | case IW_AUTH_PRIVACY_INVOKED: | |
1972 | /* | |
1973 | * atmel does not use these parameters | |
1974 | */ | |
1975 | break; | |
1976 | ||
1977 | case IW_AUTH_DROP_UNENCRYPTED: | |
1978 | priv->exclude_unencrypted = param->value ? 1 : 0; | |
1979 | break; | |
1980 | ||
1981 | case IW_AUTH_80211_AUTH_ALG: { | |
1982 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { | |
1983 | priv->exclude_unencrypted = 1; | |
1984 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { | |
1985 | priv->exclude_unencrypted = 0; | |
1986 | } else | |
1987 | return -EINVAL; | |
1988 | break; | |
1989 | } | |
1990 | ||
1991 | case IW_AUTH_WPA_ENABLED: | |
1992 | /* Silently accept disable of WPA */ | |
1993 | if (param->value > 0) | |
1994 | return -EOPNOTSUPP; | |
1995 | break; | |
1996 | ||
1997 | default: | |
1998 | return -EOPNOTSUPP; | |
1999 | } | |
2000 | return -EINPROGRESS; | |
2001 | } | |
2002 | ||
2003 | static int atmel_get_auth(struct net_device *dev, | |
2004 | struct iw_request_info *info, | |
2005 | union iwreq_data *wrqu, char *extra) | |
2006 | { | |
2007 | struct atmel_private *priv = netdev_priv(dev); | |
2008 | struct iw_param *param = &wrqu->param; | |
2009 | ||
2010 | switch (param->flags & IW_AUTH_INDEX) { | |
2011 | case IW_AUTH_DROP_UNENCRYPTED: | |
2012 | param->value = priv->exclude_unencrypted; | |
2013 | break; | |
2014 | ||
2015 | case IW_AUTH_80211_AUTH_ALG: | |
2016 | if (priv->exclude_unencrypted == 1) | |
2017 | param->value = IW_AUTH_ALG_SHARED_KEY; | |
2018 | else | |
2019 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; | |
2020 | break; | |
2021 | ||
2022 | case IW_AUTH_WPA_ENABLED: | |
2023 | param->value = 0; | |
2024 | break; | |
2025 | ||
2026 | default: | |
2027 | return -EOPNOTSUPP; | |
2028 | } | |
2029 | return 0; | |
2030 | } | |
2031 | ||
2032 | ||
1da177e4 LT |
2033 | static int atmel_get_name(struct net_device *dev, |
2034 | struct iw_request_info *info, | |
2035 | char *cwrq, | |
2036 | char *extra) | |
2037 | { | |
2038 | strcpy(cwrq, "IEEE 802.11-DS"); | |
2039 | return 0; | |
2040 | } | |
2041 | ||
2042 | static int atmel_set_rate(struct net_device *dev, | |
2043 | struct iw_request_info *info, | |
2044 | struct iw_param *vwrq, | |
2045 | char *extra) | |
2046 | { | |
2047 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2048 | |
1da177e4 LT |
2049 | if (vwrq->fixed == 0) { |
2050 | priv->tx_rate = 3; | |
2051 | priv->auto_tx_rate = 1; | |
2052 | } else { | |
2053 | priv->auto_tx_rate = 0; | |
4d791aad | 2054 | |
1da177e4 | 2055 | /* Which type of value ? */ |
4d791aad | 2056 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
1da177e4 | 2057 | /* Setting by rate index */ |
4d791aad | 2058 | priv->tx_rate = vwrq->value; |
1da177e4 LT |
2059 | } else { |
2060 | /* Setting by frequency value */ | |
2061 | switch (vwrq->value) { | |
8830cb67 JD |
2062 | case 1000000: |
2063 | priv->tx_rate = 0; | |
2064 | break; | |
2065 | case 2000000: | |
2066 | priv->tx_rate = 1; | |
2067 | break; | |
2068 | case 5500000: | |
2069 | priv->tx_rate = 2; | |
2070 | break; | |
2071 | case 11000000: | |
2072 | priv->tx_rate = 3; | |
2073 | break; | |
2074 | default: | |
2075 | return -EINVAL; | |
1da177e4 LT |
2076 | } |
2077 | } | |
2078 | } | |
2079 | ||
2080 | return -EINPROGRESS; | |
2081 | } | |
2082 | ||
2083 | static int atmel_set_mode(struct net_device *dev, | |
2084 | struct iw_request_info *info, | |
2085 | __u32 *uwrq, | |
2086 | char *extra) | |
2087 | { | |
2088 | struct atmel_private *priv = netdev_priv(dev); | |
2089 | ||
2090 | if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA) | |
2091 | return -EINVAL; | |
2092 | ||
2093 | priv->operating_mode = *uwrq; | |
4d791aad | 2094 | return -EINPROGRESS; |
1da177e4 LT |
2095 | } |
2096 | ||
2097 | static int atmel_get_mode(struct net_device *dev, | |
2098 | struct iw_request_info *info, | |
2099 | __u32 *uwrq, | |
2100 | char *extra) | |
2101 | { | |
2102 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2103 | |
1da177e4 LT |
2104 | *uwrq = priv->operating_mode; |
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | static int atmel_get_rate(struct net_device *dev, | |
2109 | struct iw_request_info *info, | |
2110 | struct iw_param *vwrq, | |
2111 | char *extra) | |
2112 | { | |
2113 | struct atmel_private *priv = netdev_priv(dev); | |
2114 | ||
2115 | if (priv->auto_tx_rate) { | |
2116 | vwrq->fixed = 0; | |
2117 | vwrq->value = 11000000; | |
2118 | } else { | |
2119 | vwrq->fixed = 1; | |
8830cb67 JD |
2120 | switch (priv->tx_rate) { |
2121 | case 0: | |
2122 | vwrq->value = 1000000; | |
2123 | break; | |
2124 | case 1: | |
2125 | vwrq->value = 2000000; | |
2126 | break; | |
2127 | case 2: | |
2128 | vwrq->value = 5500000; | |
2129 | break; | |
2130 | case 3: | |
2131 | vwrq->value = 11000000; | |
2132 | break; | |
1da177e4 LT |
2133 | } |
2134 | } | |
2135 | return 0; | |
2136 | } | |
2137 | ||
2138 | static int atmel_set_power(struct net_device *dev, | |
2139 | struct iw_request_info *info, | |
2140 | struct iw_param *vwrq, | |
2141 | char *extra) | |
2142 | { | |
2143 | struct atmel_private *priv = netdev_priv(dev); | |
2144 | priv->power_mode = vwrq->disabled ? 0 : 1; | |
2145 | return -EINPROGRESS; | |
2146 | } | |
2147 | ||
2148 | static int atmel_get_power(struct net_device *dev, | |
2149 | struct iw_request_info *info, | |
2150 | struct iw_param *vwrq, | |
2151 | char *extra) | |
2152 | { | |
2153 | struct atmel_private *priv = netdev_priv(dev); | |
2154 | vwrq->disabled = priv->power_mode ? 0 : 1; | |
2155 | vwrq->flags = IW_POWER_ON; | |
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | static int atmel_set_retry(struct net_device *dev, | |
2160 | struct iw_request_info *info, | |
2161 | struct iw_param *vwrq, | |
2162 | char *extra) | |
2163 | { | |
2164 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad CP |
2165 | |
2166 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { | |
6a484db4 | 2167 | if (vwrq->flags & IW_RETRY_LONG) |
1da177e4 | 2168 | priv->long_retry = vwrq->value; |
6a484db4 | 2169 | else if (vwrq->flags & IW_RETRY_SHORT) |
1da177e4 LT |
2170 | priv->short_retry = vwrq->value; |
2171 | else { | |
2172 | /* No modifier : set both */ | |
2173 | priv->long_retry = vwrq->value; | |
2174 | priv->short_retry = vwrq->value; | |
2175 | } | |
4d791aad | 2176 | return -EINPROGRESS; |
1da177e4 | 2177 | } |
4d791aad | 2178 | |
1da177e4 LT |
2179 | return -EINVAL; |
2180 | } | |
2181 | ||
2182 | static int atmel_get_retry(struct net_device *dev, | |
2183 | struct iw_request_info *info, | |
2184 | struct iw_param *vwrq, | |
2185 | char *extra) | |
2186 | { | |
2187 | struct atmel_private *priv = netdev_priv(dev); | |
2188 | ||
2189 | vwrq->disabled = 0; /* Can't be disabled */ | |
2190 | ||
6a484db4 JT |
2191 | /* Note : by default, display the short retry number */ |
2192 | if (vwrq->flags & IW_RETRY_LONG) { | |
2193 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; | |
1da177e4 LT |
2194 | vwrq->value = priv->long_retry; |
2195 | } else { | |
2196 | vwrq->flags = IW_RETRY_LIMIT; | |
2197 | vwrq->value = priv->short_retry; | |
4d791aad | 2198 | if (priv->long_retry != priv->short_retry) |
6a484db4 | 2199 | vwrq->flags |= IW_RETRY_SHORT; |
1da177e4 LT |
2200 | } |
2201 | ||
2202 | return 0; | |
2203 | } | |
2204 | ||
2205 | static int atmel_set_rts(struct net_device *dev, | |
2206 | struct iw_request_info *info, | |
2207 | struct iw_param *vwrq, | |
2208 | char *extra) | |
2209 | { | |
2210 | struct atmel_private *priv = netdev_priv(dev); | |
2211 | int rthr = vwrq->value; | |
2212 | ||
4d791aad | 2213 | if (vwrq->disabled) |
1da177e4 | 2214 | rthr = 2347; |
4d791aad | 2215 | if ((rthr < 0) || (rthr > 2347)) { |
1da177e4 LT |
2216 | return -EINVAL; |
2217 | } | |
2218 | priv->rts_threshold = rthr; | |
4d791aad | 2219 | |
1da177e4 LT |
2220 | return -EINPROGRESS; /* Call commit handler */ |
2221 | } | |
2222 | ||
2223 | static int atmel_get_rts(struct net_device *dev, | |
2224 | struct iw_request_info *info, | |
2225 | struct iw_param *vwrq, | |
2226 | char *extra) | |
2227 | { | |
2228 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2229 | |
1da177e4 LT |
2230 | vwrq->value = priv->rts_threshold; |
2231 | vwrq->disabled = (vwrq->value >= 2347); | |
2232 | vwrq->fixed = 1; | |
2233 | ||
2234 | return 0; | |
2235 | } | |
2236 | ||
2237 | static int atmel_set_frag(struct net_device *dev, | |
2238 | struct iw_request_info *info, | |
2239 | struct iw_param *vwrq, | |
2240 | char *extra) | |
2241 | { | |
2242 | struct atmel_private *priv = netdev_priv(dev); | |
2243 | int fthr = vwrq->value; | |
2244 | ||
4d791aad | 2245 | if (vwrq->disabled) |
1da177e4 | 2246 | fthr = 2346; |
4d791aad | 2247 | if ((fthr < 256) || (fthr > 2346)) { |
1da177e4 LT |
2248 | return -EINVAL; |
2249 | } | |
2250 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ | |
2251 | priv->frag_threshold = fthr; | |
4d791aad | 2252 | |
1da177e4 LT |
2253 | return -EINPROGRESS; /* Call commit handler */ |
2254 | } | |
2255 | ||
2256 | static int atmel_get_frag(struct net_device *dev, | |
2257 | struct iw_request_info *info, | |
2258 | struct iw_param *vwrq, | |
2259 | char *extra) | |
2260 | { | |
2261 | struct atmel_private *priv = netdev_priv(dev); | |
2262 | ||
2263 | vwrq->value = priv->frag_threshold; | |
2264 | vwrq->disabled = (vwrq->value >= 2346); | |
2265 | vwrq->fixed = 1; | |
2266 | ||
2267 | return 0; | |
2268 | } | |
2269 | ||
1da177e4 LT |
2270 | static int atmel_set_freq(struct net_device *dev, |
2271 | struct iw_request_info *info, | |
2272 | struct iw_freq *fwrq, | |
2273 | char *extra) | |
2274 | { | |
2275 | struct atmel_private *priv = netdev_priv(dev); | |
2276 | int rc = -EINPROGRESS; /* Call commit handler */ | |
4d791aad | 2277 | |
1da177e4 | 2278 | /* If setting by frequency, convert to a channel */ |
9ee677c2 | 2279 | if (fwrq->e == 1) { |
1da177e4 | 2280 | int f = fwrq->m / 100000; |
9ee677c2 | 2281 | |
1da177e4 LT |
2282 | /* Hack to fall through... */ |
2283 | fwrq->e = 0; | |
9ee677c2 | 2284 | fwrq->m = ieee80211_freq_to_dsss_chan(f); |
1da177e4 LT |
2285 | } |
2286 | /* Setting by channel number */ | |
4d791aad | 2287 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
1da177e4 LT |
2288 | rc = -EOPNOTSUPP; |
2289 | else { | |
2290 | int channel = fwrq->m; | |
2291 | if (atmel_validate_channel(priv, channel) == 0) { | |
2292 | priv->channel = channel; | |
2293 | } else { | |
2294 | rc = -EINVAL; | |
4d791aad | 2295 | } |
1da177e4 LT |
2296 | } |
2297 | return rc; | |
2298 | } | |
2299 | ||
2300 | static int atmel_get_freq(struct net_device *dev, | |
2301 | struct iw_request_info *info, | |
2302 | struct iw_freq *fwrq, | |
2303 | char *extra) | |
2304 | { | |
2305 | struct atmel_private *priv = netdev_priv(dev); | |
2306 | ||
2307 | fwrq->m = priv->channel; | |
2308 | fwrq->e = 0; | |
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | static int atmel_set_scan(struct net_device *dev, | |
2313 | struct iw_request_info *info, | |
9930ccee | 2314 | struct iw_point *dwrq, |
1da177e4 LT |
2315 | char *extra) |
2316 | { | |
2317 | struct atmel_private *priv = netdev_priv(dev); | |
2318 | unsigned long flags; | |
2319 | ||
2320 | /* Note : you may have realised that, as this is a SET operation, | |
2321 | * this is privileged and therefore a normal user can't | |
2322 | * perform scanning. | |
2323 | * This is not an error, while the device perform scanning, | |
2324 | * traffic doesn't flow, so it's a perfect DoS... | |
2325 | * Jean II */ | |
4d791aad | 2326 | |
1da177e4 LT |
2327 | if (priv->station_state == STATION_STATE_DOWN) |
2328 | return -EAGAIN; | |
2329 | ||
2330 | /* Timeout old surveys. */ | |
6e33e30d | 2331 | if (time_after(jiffies, priv->last_survey + 20 * HZ)) |
1da177e4 LT |
2332 | priv->site_survey_state = SITE_SURVEY_IDLE; |
2333 | priv->last_survey = jiffies; | |
2334 | ||
2335 | /* Initiate a scan command */ | |
2336 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) | |
2337 | return -EBUSY; | |
4d791aad | 2338 | |
1da177e4 LT |
2339 | del_timer_sync(&priv->management_timer); |
2340 | spin_lock_irqsave(&priv->irqlock, flags); | |
4d791aad | 2341 | |
1da177e4 LT |
2342 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
2343 | priv->fast_scan = 0; | |
2344 | atmel_scan(priv, 0); | |
2345 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
4d791aad | 2346 | |
1da177e4 LT |
2347 | return 0; |
2348 | } | |
2349 | ||
2350 | static int atmel_get_scan(struct net_device *dev, | |
2351 | struct iw_request_info *info, | |
2352 | struct iw_point *dwrq, | |
2353 | char *extra) | |
2354 | { | |
2355 | struct atmel_private *priv = netdev_priv(dev); | |
2356 | int i; | |
2357 | char *current_ev = extra; | |
2358 | struct iw_event iwe; | |
4d791aad | 2359 | |
1da177e4 LT |
2360 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
2361 | return -EAGAIN; | |
4d791aad CP |
2362 | |
2363 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2364 | iwe.cmd = SIOCGIWAP; |
2365 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
2366 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6); | |
ccc58057 DM |
2367 | current_ev = iwe_stream_add_event(info, current_ev, |
2368 | extra + IW_SCAN_MAX_DATA, | |
2369 | &iwe, IW_EV_ADDR_LEN); | |
1da177e4 LT |
2370 | |
2371 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; | |
2372 | if (iwe.u.data.length > 32) | |
2373 | iwe.u.data.length = 32; | |
2374 | iwe.cmd = SIOCGIWESSID; | |
2375 | iwe.u.data.flags = 1; | |
ccc58057 DM |
2376 | current_ev = iwe_stream_add_point(info, current_ev, |
2377 | extra + IW_SCAN_MAX_DATA, | |
2378 | &iwe, priv->BSSinfo[i].SSID); | |
4d791aad | 2379 | |
1da177e4 LT |
2380 | iwe.cmd = SIOCGIWMODE; |
2381 | iwe.u.mode = priv->BSSinfo[i].BSStype; | |
ccc58057 DM |
2382 | current_ev = iwe_stream_add_event(info, current_ev, |
2383 | extra + IW_SCAN_MAX_DATA, | |
2384 | &iwe, IW_EV_UINT_LEN); | |
4d791aad | 2385 | |
1da177e4 LT |
2386 | iwe.cmd = SIOCGIWFREQ; |
2387 | iwe.u.freq.m = priv->BSSinfo[i].channel; | |
2388 | iwe.u.freq.e = 0; | |
ccc58057 DM |
2389 | current_ev = iwe_stream_add_event(info, current_ev, |
2390 | extra + IW_SCAN_MAX_DATA, | |
2391 | &iwe, IW_EV_FREQ_LEN); | |
4d791aad | 2392 | |
3b31dc32 HK |
2393 | /* Add quality statistics */ |
2394 | iwe.cmd = IWEVQUAL; | |
2395 | iwe.u.qual.level = priv->BSSinfo[i].RSSI; | |
2396 | iwe.u.qual.qual = iwe.u.qual.level; | |
2397 | /* iwe.u.qual.noise = SOMETHING */ | |
ccc58057 DM |
2398 | current_ev = iwe_stream_add_event(info, current_ev, |
2399 | extra + IW_SCAN_MAX_DATA, | |
2400 | &iwe, IW_EV_QUAL_LEN); | |
3b31dc32 HK |
2401 | |
2402 | ||
1da177e4 LT |
2403 | iwe.cmd = SIOCGIWENCODE; |
2404 | if (priv->BSSinfo[i].UsingWEP) | |
2405 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
2406 | else | |
2407 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
2408 | iwe.u.data.length = 0; | |
ccc58057 DM |
2409 | current_ev = iwe_stream_add_point(info, current_ev, |
2410 | extra + IW_SCAN_MAX_DATA, | |
2411 | &iwe, NULL); | |
1da177e4 LT |
2412 | } |
2413 | ||
2414 | /* Length of data */ | |
2415 | dwrq->length = (current_ev - extra); | |
4d791aad CP |
2416 | dwrq->flags = 0; |
2417 | ||
1da177e4 LT |
2418 | return 0; |
2419 | } | |
2420 | ||
2421 | static int atmel_get_range(struct net_device *dev, | |
2422 | struct iw_request_info *info, | |
2423 | struct iw_point *dwrq, | |
2424 | char *extra) | |
2425 | { | |
2426 | struct atmel_private *priv = netdev_priv(dev); | |
2427 | struct iw_range *range = (struct iw_range *) extra; | |
4d791aad | 2428 | int k, i, j; |
1da177e4 LT |
2429 | |
2430 | dwrq->length = sizeof(struct iw_range); | |
f36be621 | 2431 | memset(range, 0, sizeof(struct iw_range)); |
1da177e4 LT |
2432 | range->min_nwid = 0x0000; |
2433 | range->max_nwid = 0x0000; | |
2434 | range->num_channels = 0; | |
b4341135 | 2435 | for (j = 0; j < ARRAY_SIZE(channel_table); j++) |
1da177e4 LT |
2436 | if (priv->reg_domain == channel_table[j].reg_domain) { |
2437 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; | |
2438 | break; | |
2439 | } | |
2440 | if (range->num_channels != 0) { | |
4d791aad | 2441 | for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) { |
1da177e4 | 2442 | range->freq[k].i = i; /* List index */ |
9ee677c2 DK |
2443 | |
2444 | /* Values in MHz -> * 10^5 * 10 */ | |
2445 | range->freq[k].m = (ieee80211_dsss_chan_to_freq(i) * | |
2446 | 100000); | |
2447 | range->freq[k++].e = 1; | |
1da177e4 LT |
2448 | } |
2449 | range->num_frequency = k; | |
2450 | } | |
4d791aad | 2451 | |
1da177e4 LT |
2452 | range->max_qual.qual = 100; |
2453 | range->max_qual.level = 100; | |
2454 | range->max_qual.noise = 0; | |
2455 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
2456 | ||
2457 | range->avg_qual.qual = 50; | |
2458 | range->avg_qual.level = 50; | |
2459 | range->avg_qual.noise = 0; | |
2460 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; | |
2461 | ||
2462 | range->sensitivity = 0; | |
2463 | ||
2464 | range->bitrate[0] = 1000000; | |
2465 | range->bitrate[1] = 2000000; | |
2466 | range->bitrate[2] = 5500000; | |
2467 | range->bitrate[3] = 11000000; | |
2468 | range->num_bitrates = 4; | |
2469 | ||
2470 | range->min_rts = 0; | |
2471 | range->max_rts = 2347; | |
2472 | range->min_frag = 256; | |
2473 | range->max_frag = 2346; | |
2474 | ||
2475 | range->encoding_size[0] = 5; | |
2476 | range->encoding_size[1] = 13; | |
2477 | range->num_encoding_sizes = 2; | |
2478 | range->max_encoding_tokens = 4; | |
4d791aad | 2479 | |
1da177e4 LT |
2480 | range->pmp_flags = IW_POWER_ON; |
2481 | range->pmt_flags = IW_POWER_ON; | |
2482 | range->pm_capa = 0; | |
4d791aad | 2483 | |
1da177e4 LT |
2484 | range->we_version_source = WIRELESS_EXT; |
2485 | range->we_version_compiled = WIRELESS_EXT; | |
2486 | range->retry_capa = IW_RETRY_LIMIT ; | |
2487 | range->retry_flags = IW_RETRY_LIMIT; | |
2488 | range->r_time_flags = 0; | |
2489 | range->min_retry = 1; | |
2490 | range->max_retry = 65535; | |
2491 | ||
2492 | return 0; | |
2493 | } | |
2494 | ||
2495 | static int atmel_set_wap(struct net_device *dev, | |
2496 | struct iw_request_info *info, | |
2497 | struct sockaddr *awrq, | |
2498 | char *extra) | |
2499 | { | |
2500 | struct atmel_private *priv = netdev_priv(dev); | |
2501 | int i; | |
9a6301c1 DW |
2502 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
2503 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
1da177e4 LT |
2504 | unsigned long flags; |
2505 | ||
2506 | if (awrq->sa_family != ARPHRD_ETHER) | |
2507 | return -EINVAL; | |
4d791aad | 2508 | |
9a6301c1 DW |
2509 | if (!memcmp(any, awrq->sa_data, 6) || |
2510 | !memcmp(off, awrq->sa_data, 6)) { | |
1da177e4 LT |
2511 | del_timer_sync(&priv->management_timer); |
2512 | spin_lock_irqsave(&priv->irqlock, flags); | |
2513 | atmel_scan(priv, 1); | |
2514 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2515 | return 0; | |
2516 | } | |
4d791aad CP |
2517 | |
2518 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2519 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
2520 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { | |
2521 | return -EINVAL; | |
2522 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { | |
2523 | return -EINVAL; | |
2524 | } else { | |
2525 | del_timer_sync(&priv->management_timer); | |
2526 | spin_lock_irqsave(&priv->irqlock, flags); | |
2527 | atmel_join_bss(priv, i); | |
2528 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2529 | return 0; | |
2530 | } | |
2531 | } | |
2532 | } | |
4d791aad | 2533 | |
1da177e4 LT |
2534 | return -EINVAL; |
2535 | } | |
4d791aad | 2536 | |
1da177e4 LT |
2537 | static int atmel_config_commit(struct net_device *dev, |
2538 | struct iw_request_info *info, /* NULL */ | |
2539 | void *zwrq, /* NULL */ | |
2540 | char *extra) /* NULL */ | |
2541 | { | |
2542 | return atmel_open(dev); | |
2543 | } | |
2544 | ||
4d791aad | 2545 | static const iw_handler atmel_handler[] = |
1da177e4 LT |
2546 | { |
2547 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ | |
4d791aad | 2548 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
1da177e4 LT |
2549 | (iw_handler) NULL, /* SIOCSIWNWID */ |
2550 | (iw_handler) NULL, /* SIOCGIWNWID */ | |
2551 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ | |
2552 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ | |
2553 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ | |
2554 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ | |
4d791aad CP |
2555 | (iw_handler) NULL, /* SIOCSIWSENS */ |
2556 | (iw_handler) NULL, /* SIOCGIWSENS */ | |
1da177e4 LT |
2557 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
2558 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ | |
2559 | (iw_handler) NULL, /* SIOCSIWPRIV */ | |
2560 | (iw_handler) NULL, /* SIOCGIWPRIV */ | |
2561 | (iw_handler) NULL, /* SIOCSIWSTATS */ | |
2562 | (iw_handler) NULL, /* SIOCGIWSTATS */ | |
2563 | (iw_handler) NULL, /* SIOCSIWSPY */ | |
2564 | (iw_handler) NULL, /* SIOCGIWSPY */ | |
2565 | (iw_handler) NULL, /* -- hole -- */ | |
2566 | (iw_handler) NULL, /* -- hole -- */ | |
2567 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ | |
2568 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ | |
2569 | (iw_handler) NULL, /* -- hole -- */ | |
4d791aad | 2570 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
1da177e4 LT |
2571 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
2572 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ | |
2573 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ | |
2574 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ | |
4d791aad CP |
2575 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
2576 | (iw_handler) NULL, /* SIOCGIWNICKN */ | |
1da177e4 LT |
2577 | (iw_handler) NULL, /* -- hole -- */ |
2578 | (iw_handler) NULL, /* -- hole -- */ | |
2579 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ | |
2580 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ | |
2581 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ | |
2582 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ | |
2583 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ | |
2584 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ | |
4d791aad CP |
2585 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
2586 | (iw_handler) NULL, /* SIOCGIWTXPOW */ | |
1da177e4 LT |
2587 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
2588 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ | |
2589 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ | |
2590 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ | |
2591 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ | |
2592 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ | |
9a6301c1 DW |
2593 | (iw_handler) NULL, /* -- hole -- */ |
2594 | (iw_handler) NULL, /* -- hole -- */ | |
2595 | (iw_handler) NULL, /* SIOCSIWGENIE */ | |
2596 | (iw_handler) NULL, /* SIOCGIWGENIE */ | |
2597 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ | |
2598 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ | |
2599 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ | |
2600 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ | |
2601 | (iw_handler) NULL, /* SIOCSIWPMKSA */ | |
1da177e4 LT |
2602 | }; |
2603 | ||
4d791aad | 2604 | static const iw_handler atmel_private_handler[] = |
1da177e4 LT |
2605 | { |
2606 | NULL, /* SIOCIWFIRSTPRIV */ | |
2607 | }; | |
2608 | ||
2609 | typedef struct atmel_priv_ioctl { | |
2610 | char id[32]; | |
4d791aad CP |
2611 | unsigned char __user *data; |
2612 | unsigned short len; | |
1da177e4 LT |
2613 | } atmel_priv_ioctl; |
2614 | ||
4d791aad CP |
2615 | #define ATMELFWL SIOCIWFIRSTPRIV |
2616 | #define ATMELIDIFC ATMELFWL + 1 | |
2617 | #define ATMELRD ATMELFWL + 2 | |
2618 | #define ATMELMAGIC 0x51807 | |
1da177e4 LT |
2619 | #define REGDOMAINSZ 20 |
2620 | ||
2621 | static const struct iw_priv_args atmel_private_args[] = { | |
4d791aad CP |
2622 | { |
2623 | .cmd = ATMELFWL, | |
2624 | .set_args = IW_PRIV_TYPE_BYTE | |
2625 | | IW_PRIV_SIZE_FIXED | |
2626 | | sizeof (atmel_priv_ioctl), | |
2627 | .get_args = IW_PRIV_TYPE_NONE, | |
2628 | .name = "atmelfwl" | |
2629 | }, { | |
2630 | .cmd = ATMELIDIFC, | |
2631 | .set_args = IW_PRIV_TYPE_NONE, | |
2632 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, | |
2633 | .name = "atmelidifc" | |
2634 | }, { | |
2635 | .cmd = ATMELRD, | |
2636 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, | |
2637 | .get_args = IW_PRIV_TYPE_NONE, | |
2638 | .name = "regdomain" | |
2639 | }, | |
1da177e4 LT |
2640 | }; |
2641 | ||
8830cb67 | 2642 | static const struct iw_handler_def atmel_handler_def = { |
b4341135 DT |
2643 | .num_standard = ARRAY_SIZE(atmel_handler), |
2644 | .num_private = ARRAY_SIZE(atmel_private_handler), | |
2645 | .num_private_args = ARRAY_SIZE(atmel_private_args), | |
1da177e4 | 2646 | .standard = (iw_handler *) atmel_handler, |
4d791aad | 2647 | .private = (iw_handler *) atmel_private_handler, |
72f98d38 JT |
2648 | .private_args = (struct iw_priv_args *) atmel_private_args, |
2649 | .get_wireless_stats = atmel_get_wireless_stats | |
1da177e4 LT |
2650 | }; |
2651 | ||
2652 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2653 | { | |
2654 | int i, rc = 0; | |
2655 | struct atmel_private *priv = netdev_priv(dev); | |
2656 | atmel_priv_ioctl com; | |
2657 | struct iwreq *wrq = (struct iwreq *) rq; | |
2658 | unsigned char *new_firmware; | |
4d791aad | 2659 | char domain[REGDOMAINSZ + 1]; |
1da177e4 LT |
2660 | |
2661 | switch (cmd) { | |
1da177e4 | 2662 | case ATMELIDIFC: |
4d791aad | 2663 | wrq->u.param.value = ATMELMAGIC; |
1da177e4 | 2664 | break; |
4d791aad | 2665 | |
1da177e4 LT |
2666 | case ATMELFWL: |
2667 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { | |
2668 | rc = -EFAULT; | |
2669 | break; | |
2670 | } | |
2671 | ||
2672 | if (!capable(CAP_NET_ADMIN)) { | |
2673 | rc = -EPERM; | |
2674 | break; | |
2675 | } | |
2676 | ||
2677 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { | |
2678 | rc = -ENOMEM; | |
2679 | break; | |
2680 | } | |
2681 | ||
2682 | if (copy_from_user(new_firmware, com.data, com.len)) { | |
2683 | kfree(new_firmware); | |
2684 | rc = -EFAULT; | |
2685 | break; | |
2686 | } | |
2687 | ||
b4558ea9 | 2688 | kfree(priv->firmware); |
4d791aad | 2689 | |
1da177e4 LT |
2690 | priv->firmware = new_firmware; |
2691 | priv->firmware_length = com.len; | |
2692 | strncpy(priv->firmware_id, com.id, 31); | |
2693 | priv->firmware_id[31] = '\0'; | |
2694 | break; | |
2695 | ||
2696 | case ATMELRD: | |
2697 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { | |
2698 | rc = -EFAULT; | |
2699 | break; | |
2700 | } | |
4d791aad | 2701 | |
1da177e4 LT |
2702 | if (!capable(CAP_NET_ADMIN)) { |
2703 | rc = -EPERM; | |
2704 | break; | |
2705 | } | |
2706 | ||
2707 | domain[REGDOMAINSZ] = 0; | |
2708 | rc = -EINVAL; | |
b4341135 | 2709 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) { |
1da177e4 LT |
2710 | /* strcasecmp doesn't exist in the library */ |
2711 | char *a = channel_table[i].name; | |
2712 | char *b = domain; | |
2713 | while (*a) { | |
2714 | char c1 = *a++; | |
2715 | char c2 = *b++; | |
2716 | if (tolower(c1) != tolower(c2)) | |
2717 | break; | |
2718 | } | |
2719 | if (!*a && !*b) { | |
2720 | priv->config_reg_domain = channel_table[i].reg_domain; | |
2721 | rc = 0; | |
2722 | } | |
2723 | } | |
4d791aad | 2724 | |
1da177e4 LT |
2725 | if (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
2726 | rc = atmel_open(dev); | |
2727 | break; | |
4d791aad | 2728 | |
1da177e4 LT |
2729 | default: |
2730 | rc = -EOPNOTSUPP; | |
2731 | } | |
4d791aad | 2732 | |
1da177e4 LT |
2733 | return rc; |
2734 | } | |
2735 | ||
2736 | struct auth_body { | |
0e5ce1f3 AV |
2737 | __le16 alg; |
2738 | __le16 trans_seq; | |
2739 | __le16 status; | |
1da177e4 LT |
2740 | u8 el_id; |
2741 | u8 chall_text_len; | |
2742 | u8 chall_text[253]; | |
4d791aad | 2743 | }; |
1da177e4 LT |
2744 | |
2745 | static void atmel_enter_state(struct atmel_private *priv, int new_state) | |
2746 | { | |
2747 | int old_state = priv->station_state; | |
4d791aad | 2748 | |
1da177e4 LT |
2749 | if (new_state == old_state) |
2750 | return; | |
4d791aad | 2751 | |
1da177e4 | 2752 | priv->station_state = new_state; |
4d791aad | 2753 | |
1da177e4 LT |
2754 | if (new_state == STATION_STATE_READY) { |
2755 | netif_start_queue(priv->dev); | |
2756 | netif_carrier_on(priv->dev); | |
2757 | } | |
2758 | ||
2759 | if (old_state == STATION_STATE_READY) { | |
2760 | netif_carrier_off(priv->dev); | |
2761 | if (netif_running(priv->dev)) | |
2762 | netif_stop_queue(priv->dev); | |
2763 | priv->last_beacon_timestamp = 0; | |
2764 | } | |
2765 | } | |
2766 | ||
2767 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) | |
2768 | { | |
2769 | struct { | |
2770 | u8 BSSID[6]; | |
2771 | u8 SSID[MAX_SSID_LENGTH]; | |
2772 | u8 scan_type; | |
2773 | u8 channel; | |
0e5ce1f3 AV |
2774 | __le16 BSS_type; |
2775 | __le16 min_channel_time; | |
2776 | __le16 max_channel_time; | |
1da177e4 LT |
2777 | u8 options; |
2778 | u8 SSID_size; | |
2779 | } cmd; | |
4d791aad | 2780 | |
1da177e4 LT |
2781 | memset(cmd.BSSID, 0xff, 6); |
2782 | ||
2783 | if (priv->fast_scan) { | |
2784 | cmd.SSID_size = priv->SSID_size; | |
2785 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2786 | cmd.min_channel_time = cpu_to_le16(10); | |
2787 | cmd.max_channel_time = cpu_to_le16(50); | |
2788 | } else { | |
2789 | priv->BSS_list_entries = 0; | |
2790 | cmd.SSID_size = 0; | |
2791 | cmd.min_channel_time = cpu_to_le16(10); | |
2792 | cmd.max_channel_time = cpu_to_le16(120); | |
2793 | } | |
4d791aad | 2794 | |
1da177e4 | 2795 | cmd.options = 0; |
4d791aad | 2796 | |
1da177e4 LT |
2797 | if (!specific_ssid) |
2798 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; | |
4d791aad CP |
2799 | |
2800 | cmd.channel = (priv->channel & 0x7f); | |
1da177e4 | 2801 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
4d791aad | 2802 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
1da177e4 | 2803 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
4d791aad | 2804 | |
1da177e4 LT |
2805 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
2806 | ||
2807 | /* This must come after all hardware access to avoid being messed up | |
2808 | by stuff happening in interrupt context after we leave STATE_DOWN */ | |
2809 | atmel_enter_state(priv, STATION_STATE_SCANNING); | |
2810 | } | |
2811 | ||
2812 | static void join(struct atmel_private *priv, int type) | |
2813 | { | |
2814 | struct { | |
2815 | u8 BSSID[6]; | |
2816 | u8 SSID[MAX_SSID_LENGTH]; | |
2817 | u8 BSS_type; /* this is a short in a scan command - weird */ | |
2818 | u8 channel; | |
0e5ce1f3 | 2819 | __le16 timeout; |
1da177e4 LT |
2820 | u8 SSID_size; |
2821 | u8 reserved; | |
2822 | } cmd; | |
2823 | ||
2824 | cmd.SSID_size = priv->SSID_size; | |
2825 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2826 | memcpy(cmd.BSSID, priv->CurrentBSSID, 6); | |
2827 | cmd.channel = (priv->channel & 0x7f); | |
2828 | cmd.BSS_type = type; | |
2829 | cmd.timeout = cpu_to_le16(2000); | |
2830 | ||
4d791aad | 2831 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
1da177e4 LT |
2832 | } |
2833 | ||
1da177e4 LT |
2834 | static void start(struct atmel_private *priv, int type) |
2835 | { | |
2836 | struct { | |
2837 | u8 BSSID[6]; | |
2838 | u8 SSID[MAX_SSID_LENGTH]; | |
4d791aad | 2839 | u8 BSS_type; |
1da177e4 LT |
2840 | u8 channel; |
2841 | u8 SSID_size; | |
2842 | u8 reserved[3]; | |
2843 | } cmd; | |
2844 | ||
2845 | cmd.SSID_size = priv->SSID_size; | |
2846 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2847 | memcpy(cmd.BSSID, priv->BSSID, 6); | |
2848 | cmd.BSS_type = type; | |
2849 | cmd.channel = (priv->channel & 0x7f); | |
2850 | ||
4d791aad | 2851 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
1da177e4 LT |
2852 | } |
2853 | ||
4d791aad CP |
2854 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
2855 | u8 channel) | |
1da177e4 LT |
2856 | { |
2857 | int rejoin = 0; | |
2c706002 | 2858 | int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
1da177e4 LT |
2859 | SHORT_PREAMBLE : LONG_PREAMBLE; |
2860 | ||
2861 | if (priv->preamble != new) { | |
2862 | priv->preamble = new; | |
2863 | rejoin = 1; | |
2864 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); | |
2865 | } | |
4d791aad | 2866 | |
1da177e4 LT |
2867 | if (priv->channel != channel) { |
2868 | priv->channel = channel; | |
2869 | rejoin = 1; | |
2870 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); | |
2871 | } | |
4d791aad | 2872 | |
1da177e4 LT |
2873 | if (rejoin) { |
2874 | priv->station_is_associated = 0; | |
2875 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 2876 | |
1da177e4 LT |
2877 | if (priv->operating_mode == IW_MODE_INFRA) |
2878 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 2879 | else |
1da177e4 | 2880 | join(priv, BSS_TYPE_AD_HOC); |
4d791aad | 2881 | } |
1da177e4 LT |
2882 | } |
2883 | ||
4d791aad CP |
2884 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
2885 | u8 *challenge, int challenge_len) | |
1da177e4 | 2886 | { |
2c706002 | 2887 | struct ieee80211_hdr header; |
1da177e4 | 2888 | struct auth_body auth; |
4d791aad | 2889 | |
2c706002 | 2890 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); |
4d791aad | 2891 | header.duration_id = cpu_to_le16(0x8000); |
2c706002 | 2892 | header.seq_ctrl = 0; |
1da177e4 LT |
2893 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
2894 | memcpy(header.addr2, priv->dev->dev_addr, 6); | |
2895 | memcpy(header.addr3, priv->CurrentBSSID, 6); | |
4d791aad CP |
2896 | |
2897 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) | |
1da177e4 | 2898 | /* no WEP for authentication frames with TrSeqNo 1 */ |
8830cb67 | 2899 | header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
4d791aad CP |
2900 | |
2901 | auth.alg = cpu_to_le16(system); | |
1da177e4 LT |
2902 | |
2903 | auth.status = 0; | |
2904 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); | |
4d791aad | 2905 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
1da177e4 | 2906 | priv->CurrentAuthentTransactionSeqNum += 2; |
4d791aad | 2907 | |
1da177e4 LT |
2908 | if (challenge_len != 0) { |
2909 | auth.el_id = 16; /* challenge_text */ | |
2910 | auth.chall_text_len = challenge_len; | |
2911 | memcpy(auth.chall_text, challenge, challenge_len); | |
2912 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); | |
2913 | } else { | |
2914 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); | |
2915 | } | |
2916 | } | |
2917 | ||
2918 | static void send_association_request(struct atmel_private *priv, int is_reassoc) | |
2919 | { | |
2920 | u8 *ssid_el_p; | |
2921 | int bodysize; | |
2c706002 | 2922 | struct ieee80211_hdr header; |
1da177e4 | 2923 | struct ass_req_format { |
0e5ce1f3 AV |
2924 | __le16 capability; |
2925 | __le16 listen_interval; | |
1da177e4 LT |
2926 | u8 ap[6]; /* nothing after here directly accessible */ |
2927 | u8 ssid_el_id; | |
2928 | u8 ssid_len; | |
2929 | u8 ssid[MAX_SSID_LENGTH]; | |
2930 | u8 sup_rates_el_id; | |
2931 | u8 sup_rates_len; | |
2932 | u8 rates[4]; | |
2933 | } body; | |
4d791aad | 2934 | |
2c706002 | 2935 | header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
b453872c | 2936 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
1da177e4 | 2937 | header.duration_id = cpu_to_le16(0x8000); |
2c706002 | 2938 | header.seq_ctrl = 0; |
1da177e4 | 2939 | |
4d791aad | 2940 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
1da177e4 | 2941 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
4d791aad | 2942 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
1da177e4 | 2943 | |
4861dd79 | 2944 | body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS); |
1da177e4 | 2945 | if (priv->wep_is_on) |
4861dd79 | 2946 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); |
1da177e4 | 2947 | if (priv->preamble == SHORT_PREAMBLE) |
2c706002 | 2948 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); |
1da177e4 LT |
2949 | |
2950 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); | |
4d791aad | 2951 | |
1da177e4 LT |
2952 | /* current AP address - only in reassoc frame */ |
2953 | if (is_reassoc) { | |
4d791aad | 2954 | memcpy(body.ap, priv->CurrentBSSID, 6); |
2c208890 | 2955 | ssid_el_p = &body.ssid_el_id; |
1da177e4 LT |
2956 | bodysize = 18 + priv->SSID_size; |
2957 | } else { | |
2c208890 | 2958 | ssid_el_p = &body.ap[0]; |
1da177e4 LT |
2959 | bodysize = 12 + priv->SSID_size; |
2960 | } | |
4d791aad | 2961 | |
2c706002 | 2962 | ssid_el_p[0] = WLAN_EID_SSID; |
1da177e4 LT |
2963 | ssid_el_p[1] = priv->SSID_size; |
2964 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); | |
2c706002 | 2965 | ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES; |
1da177e4 LT |
2966 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */ |
2967 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); | |
2968 | ||
2969 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); | |
2970 | } | |
2971 | ||
4d791aad | 2972 | static int is_frame_from_current_bss(struct atmel_private *priv, |
2c706002 | 2973 | struct ieee80211_hdr *header) |
1da177e4 | 2974 | { |
2c706002 | 2975 | if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
2976 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
2977 | else | |
2978 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; | |
2979 | } | |
2980 | ||
2981 | static int retrieve_bss(struct atmel_private *priv) | |
2982 | { | |
2983 | int i; | |
2984 | int max_rssi = -128; | |
2985 | int max_index = -1; | |
4d791aad | 2986 | |
1da177e4 LT |
2987 | if (priv->BSS_list_entries == 0) |
2988 | return -1; | |
4d791aad | 2989 | |
1da177e4 | 2990 | if (priv->connect_to_any_BSS) { |
4d791aad CP |
2991 | /* Select a BSS with the max-RSSI but of the same type and of |
2992 | the same WEP mode and that it is not marked as 'bad' (i.e. | |
2993 | we had previously failed to connect to this BSS with the | |
2994 | settings that we currently use) */ | |
1da177e4 | 2995 | priv->current_BSS = 0; |
4d791aad | 2996 | for (i = 0; i < priv->BSS_list_entries; i++) { |
1da177e4 | 2997 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
4d791aad | 2998 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
1da177e4 LT |
2999 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
3000 | !(priv->BSSinfo[i].channel & 0x80)) { | |
3001 | max_rssi = priv->BSSinfo[i].RSSI; | |
3002 | priv->current_BSS = max_index = i; | |
3003 | } | |
1da177e4 LT |
3004 | } |
3005 | return max_index; | |
3006 | } | |
4d791aad CP |
3007 | |
3008 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
3009 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
3010 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && | |
3011 | priv->operating_mode == priv->BSSinfo[i].BSStype && | |
3012 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { | |
3013 | if (priv->BSSinfo[i].RSSI >= max_rssi) { | |
3014 | max_rssi = priv->BSSinfo[i].RSSI; | |
3015 | max_index = i; | |
3016 | } | |
3017 | } | |
3018 | } | |
3019 | return max_index; | |
3020 | } | |
3021 | ||
4d791aad | 3022 | static void store_bss_info(struct atmel_private *priv, |
2c706002 | 3023 | struct ieee80211_hdr *header, u16 capability, |
4d791aad CP |
3024 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, |
3025 | u8 *ssid, int is_beacon) | |
1da177e4 | 3026 | { |
4861dd79 | 3027 | u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3; |
1da177e4 | 3028 | int i, index; |
4d791aad CP |
3029 | |
3030 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) | |
3031 | if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0) | |
1da177e4 LT |
3032 | index = i; |
3033 | ||
8830cb67 | 3034 | /* If we process a probe and an entry from this BSS exists |
1da177e4 LT |
3035 | we will update the BSS entry with the info from this BSS. |
3036 | If we process a beacon we will only update RSSI */ | |
3037 | ||
3038 | if (index == -1) { | |
3039 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) | |
3040 | return; | |
3041 | index = priv->BSS_list_entries++; | |
3042 | memcpy(priv->BSSinfo[index].BSSID, bss, 6); | |
3043 | priv->BSSinfo[index].RSSI = rssi; | |
3044 | } else { | |
3045 | if (rssi > priv->BSSinfo[index].RSSI) | |
3046 | priv->BSSinfo[index].RSSI = rssi; | |
3047 | if (is_beacon) | |
3048 | return; | |
3049 | } | |
3050 | ||
3051 | priv->BSSinfo[index].channel = channel; | |
3052 | priv->BSSinfo[index].beacon_period = beacon_period; | |
4861dd79 | 3053 | priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY; |
1da177e4 LT |
3054 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
3055 | priv->BSSinfo[index].SSIDsize = ssid_len; | |
3056 | ||
4861dd79 | 3057 | if (capability & WLAN_CAPABILITY_IBSS) |
1da177e4 | 3058 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
4861dd79 | 3059 | else if (capability & WLAN_CAPABILITY_ESS) |
8830cb67 | 3060 | priv->BSSinfo[index].BSStype = IW_MODE_INFRA; |
4d791aad | 3061 | |
2c706002 | 3062 | priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ? |
1da177e4 LT |
3063 | SHORT_PREAMBLE : LONG_PREAMBLE; |
3064 | } | |
3065 | ||
3066 | static void authenticate(struct atmel_private *priv, u16 frame_len) | |
3067 | { | |
3068 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; | |
3069 | u16 status = le16_to_cpu(auth->status); | |
3070 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); | |
b16a228d | 3071 | u16 system = le16_to_cpu(auth->alg); |
4d791aad | 3072 | |
4861dd79 | 3073 | if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) { |
1da177e4 LT |
3074 | /* no WEP */ |
3075 | if (priv->station_was_associated) { | |
3076 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3077 | send_association_request(priv, 1); | |
3078 | return; | |
3079 | } else { | |
3080 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3081 | send_association_request(priv, 0); | |
3082 | return; | |
4d791aad | 3083 | } |
1da177e4 | 3084 | } |
4d791aad | 3085 | |
4861dd79 | 3086 | if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) { |
73451379 | 3087 | int should_associate = 0; |
1da177e4 LT |
3088 | /* WEP */ |
3089 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) | |
3090 | return; | |
4d791aad | 3091 | |
4861dd79 | 3092 | if (system == WLAN_AUTH_OPEN) { |
73451379 DW |
3093 | if (trans_seq_no == 0x0002) { |
3094 | should_associate = 1; | |
3095 | } | |
4861dd79 | 3096 | } else if (system == WLAN_AUTH_SHARED_KEY) { |
73451379 | 3097 | if (trans_seq_no == 0x0002 && |
2c706002 | 3098 | auth->el_id == WLAN_EID_CHALLENGE) { |
73451379 DW |
3099 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
3100 | return; | |
3101 | } else if (trans_seq_no == 0x0004) { | |
3102 | should_associate = 1; | |
3103 | } | |
1da177e4 | 3104 | } |
4d791aad | 3105 | |
73451379 | 3106 | if (should_associate) { |
8830cb67 | 3107 | if (priv->station_was_associated) { |
1da177e4 LT |
3108 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); |
3109 | send_association_request(priv, 1); | |
3110 | return; | |
3111 | } else { | |
3112 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3113 | send_association_request(priv, 0); | |
3114 | return; | |
4d791aad | 3115 | } |
1da177e4 | 3116 | } |
4d791aad CP |
3117 | } |
3118 | ||
73451379 | 3119 | if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { |
d0c2912f DW |
3120 | /* Flip back and forth between WEP auth modes until the max |
3121 | * authentication tries has been exceeded. | |
3122 | */ | |
73451379 | 3123 | if (system == WLAN_AUTH_OPEN) { |
b16a228d | 3124 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
73451379 DW |
3125 | priv->exclude_unencrypted = 1; |
3126 | send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0); | |
3127 | return; | |
8830cb67 JD |
3128 | } else if (system == WLAN_AUTH_SHARED_KEY |
3129 | && priv->wep_is_on) { | |
d0c2912f DW |
3130 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
3131 | priv->exclude_unencrypted = 0; | |
3132 | send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0); | |
3133 | return; | |
b16a228d | 3134 | } else if (priv->connect_to_any_BSS) { |
3135 | int bss_index; | |
4d791aad | 3136 | |
b16a228d | 3137 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
4d791aad | 3138 | |
b16a228d | 3139 | if ((bss_index = retrieve_bss(priv)) != -1) { |
3140 | atmel_join_bss(priv, bss_index); | |
3141 | return; | |
3142 | } | |
1da177e4 LT |
3143 | } |
3144 | } | |
4d791aad | 3145 | |
1da177e4 LT |
3146 | priv->AuthenticationRequestRetryCnt = 0; |
3147 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3148 | priv->station_is_associated = 0; | |
3149 | } | |
3150 | ||
3151 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) | |
3152 | { | |
3153 | struct ass_resp_format { | |
0e5ce1f3 AV |
3154 | __le16 capability; |
3155 | __le16 status; | |
3156 | __le16 ass_id; | |
1da177e4 LT |
3157 | u8 el_id; |
3158 | u8 length; | |
3159 | u8 rates[4]; | |
3160 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; | |
4d791aad CP |
3161 | |
3162 | u16 status = le16_to_cpu(ass_resp->status); | |
1da177e4 | 3163 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
4d791aad CP |
3164 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
3165 | ||
9a6301c1 DW |
3166 | union iwreq_data wrqu; |
3167 | ||
1da177e4 LT |
3168 | if (frame_len < 8 + rates_len) |
3169 | return; | |
4d791aad | 3170 | |
4861dd79 DW |
3171 | if (status == WLAN_STATUS_SUCCESS) { |
3172 | if (subtype == IEEE80211_STYPE_ASSOC_RESP) | |
1da177e4 LT |
3173 | priv->AssociationRequestRetryCnt = 0; |
3174 | else | |
3175 | priv->ReAssociationRequestRetryCnt = 0; | |
4d791aad CP |
3176 | |
3177 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3178 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); | |
3179 | atmel_set_mib(priv, Phy_Mib_Type, | |
3180 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); | |
1da177e4 LT |
3181 | if (priv->power_mode == 0) { |
3182 | priv->listen_interval = 1; | |
4d791aad CP |
3183 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3184 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3185 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3186 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 LT |
3187 | } else { |
3188 | priv->listen_interval = 2; | |
4d791aad CP |
3189 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3190 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); | |
3191 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3192 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); | |
1da177e4 | 3193 | } |
4d791aad | 3194 | |
1da177e4 LT |
3195 | priv->station_is_associated = 1; |
3196 | priv->station_was_associated = 1; | |
3197 | atmel_enter_state(priv, STATION_STATE_READY); | |
9a6301c1 DW |
3198 | |
3199 | /* Send association event to userspace */ | |
3200 | wrqu.data.length = 0; | |
3201 | wrqu.data.flags = 0; | |
3202 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); | |
3203 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
3204 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
3205 | ||
1da177e4 LT |
3206 | return; |
3207 | } | |
4d791aad | 3208 | |
4861dd79 DW |
3209 | if (subtype == IEEE80211_STYPE_ASSOC_RESP && |
3210 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3211 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3212 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3213 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3214 | priv->AssociationRequestRetryCnt++; | |
3215 | send_association_request(priv, 0); | |
3216 | return; | |
3217 | } | |
4d791aad | 3218 | |
4861dd79 DW |
3219 | if (subtype == IEEE80211_STYPE_REASSOC_RESP && |
3220 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3221 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3222 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3223 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3224 | priv->ReAssociationRequestRetryCnt++; | |
3225 | send_association_request(priv, 1); | |
3226 | return; | |
3227 | } | |
4d791aad | 3228 | |
1da177e4 LT |
3229 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
3230 | priv->station_is_associated = 0; | |
4d791aad CP |
3231 | |
3232 | if (priv->connect_to_any_BSS) { | |
1da177e4 LT |
3233 | int bss_index; |
3234 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3235 | |
3236 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 | 3237 | atmel_join_bss(priv, bss_index); |
1da177e4 LT |
3238 | } |
3239 | } | |
3240 | ||
2ed5ba89 | 3241 | static void atmel_join_bss(struct atmel_private *priv, int bss_index) |
1da177e4 LT |
3242 | { |
3243 | struct bss_info *bss = &priv->BSSinfo[bss_index]; | |
3244 | ||
3245 | memcpy(priv->CurrentBSSID, bss->BSSID, 6); | |
3246 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); | |
3247 | ||
3248 | /* The WPA stuff cares about the current AP address */ | |
3249 | if (priv->use_wpa) | |
3250 | build_wpa_mib(priv); | |
4d791aad | 3251 | |
1da177e4 LT |
3252 | /* When switching to AdHoc turn OFF Power Save if needed */ |
3253 | ||
3254 | if (bss->BSStype == IW_MODE_ADHOC && | |
3255 | priv->operating_mode != IW_MODE_ADHOC && | |
3256 | priv->power_mode) { | |
3257 | priv->power_mode = 0; | |
3258 | priv->listen_interval = 1; | |
4d791aad CP |
3259 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3260 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3261 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3262 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 | 3263 | } |
4d791aad | 3264 | |
1da177e4 | 3265 | priv->operating_mode = bss->BSStype; |
4d791aad | 3266 | priv->channel = bss->channel & 0x7f; |
1da177e4 | 3267 | priv->beacon_period = bss->beacon_period; |
4d791aad | 3268 | |
1da177e4 LT |
3269 | if (priv->preamble != bss->preamble) { |
3270 | priv->preamble = bss->preamble; | |
4d791aad CP |
3271 | atmel_set_mib8(priv, Local_Mib_Type, |
3272 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); | |
1da177e4 | 3273 | } |
4d791aad | 3274 | |
1da177e4 LT |
3275 | if (!priv->wep_is_on && bss->UsingWEP) { |
3276 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3277 | priv->station_is_associated = 0; | |
3278 | return; | |
3279 | } | |
4d791aad | 3280 | |
1da177e4 LT |
3281 | if (priv->wep_is_on && !bss->UsingWEP) { |
3282 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3283 | priv->station_is_associated = 0; | |
3284 | return; | |
3285 | } | |
3286 | ||
3287 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 3288 | |
1da177e4 LT |
3289 | if (priv->operating_mode == IW_MODE_INFRA) |
3290 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 3291 | else |
1da177e4 LT |
3292 | join(priv, BSS_TYPE_AD_HOC); |
3293 | } | |
3294 | ||
1da177e4 LT |
3295 | static void restart_search(struct atmel_private *priv) |
3296 | { | |
3297 | int bss_index; | |
4d791aad | 3298 | |
1da177e4 LT |
3299 | if (!priv->connect_to_any_BSS) { |
3300 | atmel_scan(priv, 1); | |
3301 | } else { | |
3302 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3303 | |
3304 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 LT |
3305 | atmel_join_bss(priv, bss_index); |
3306 | else | |
3307 | atmel_scan(priv, 0); | |
4d791aad CP |
3308 | } |
3309 | } | |
1da177e4 LT |
3310 | |
3311 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) | |
3312 | { | |
3313 | u8 old = priv->wstats.qual.level; | |
3314 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ | |
3315 | ||
3316 | switch (priv->firmware_type) { | |
8830cb67 JD |
3317 | case ATMEL_FW_TYPE_502E: |
3318 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ | |
3319 | break; | |
3320 | default: | |
3321 | break; | |
1da177e4 LT |
3322 | } |
3323 | ||
3324 | rssi = rssi * 100 / max_rssi; | |
4d791aad CP |
3325 | if ((rssi + old) % 2) |
3326 | priv->wstats.qual.level = (rssi + old) / 2 + 1; | |
1da177e4 | 3327 | else |
4d791aad | 3328 | priv->wstats.qual.level = (rssi + old) / 2; |
1da177e4 LT |
3329 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
3330 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; | |
3331 | } | |
3332 | ||
3333 | static void atmel_smooth_qual(struct atmel_private *priv) | |
3334 | { | |
4d791aad | 3335 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
1da177e4 LT |
3336 | while (time_diff--) { |
3337 | priv->last_qual += HZ; | |
4d791aad CP |
3338 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
3339 | priv->wstats.qual.qual += | |
1da177e4 LT |
3340 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
3341 | priv->beacons_this_sec = 0; | |
3342 | } | |
3343 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; | |
3344 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; | |
3345 | } | |
3346 | ||
3dbda77e | 3347 | /* deals with incoming management frames. */ |
4d791aad | 3348 | static void atmel_management_frame(struct atmel_private *priv, |
2c706002 | 3349 | struct ieee80211_hdr *header, |
4d791aad | 3350 | u16 frame_len, u8 rssi) |
1da177e4 LT |
3351 | { |
3352 | u16 subtype; | |
4d791aad | 3353 | |
2c706002 | 3354 | subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE; |
4d791aad | 3355 | switch (subtype) { |
4861dd79 DW |
3356 | case IEEE80211_STYPE_BEACON: |
3357 | case IEEE80211_STYPE_PROBE_RESP: | |
4d791aad | 3358 | |
1da177e4 LT |
3359 | /* beacon frame has multiple variable-length fields - |
3360 | never let an engineer loose with a data structure design. */ | |
3361 | { | |
3362 | struct beacon_format { | |
0e5ce1f3 AV |
3363 | __le64 timestamp; |
3364 | __le16 interval; | |
3365 | __le16 capability; | |
1da177e4 LT |
3366 | u8 ssid_el_id; |
3367 | u8 ssid_length; | |
3368 | /* ssid here */ | |
3369 | u8 rates_el_id; | |
3370 | u8 rates_length; | |
3371 | /* rates here */ | |
3372 | u8 ds_el_id; | |
3373 | u8 ds_length; | |
3374 | /* ds here */ | |
3375 | } *beacon = (struct beacon_format *)priv->rx_buf; | |
4d791aad | 3376 | |
1da177e4 LT |
3377 | u8 channel, rates_length, ssid_length; |
3378 | u64 timestamp = le64_to_cpu(beacon->timestamp); | |
3379 | u16 beacon_interval = le16_to_cpu(beacon->interval); | |
3380 | u16 capability = le16_to_cpu(beacon->capability); | |
3381 | u8 *beaconp = priv->rx_buf; | |
3382 | ssid_length = beacon->ssid_length; | |
3383 | /* this blows chunks. */ | |
4d791aad | 3384 | if (frame_len < 14 || frame_len < ssid_length + 15) |
1da177e4 LT |
3385 | return; |
3386 | rates_length = beaconp[beacon->ssid_length + 15]; | |
3387 | if (frame_len < ssid_length + rates_length + 18) | |
3388 | return; | |
3389 | if (ssid_length > MAX_SSID_LENGTH) | |
3390 | return; | |
3391 | channel = beaconp[ssid_length + rates_length + 18]; | |
4d791aad | 3392 | |
1da177e4 LT |
3393 | if (priv->station_state == STATION_STATE_READY) { |
3394 | smooth_rssi(priv, rssi); | |
4d791aad | 3395 | if (is_frame_from_current_bss(priv, header)) { |
1da177e4 LT |
3396 | priv->beacons_this_sec++; |
3397 | atmel_smooth_qual(priv); | |
3398 | if (priv->last_beacon_timestamp) { | |
3399 | /* Note truncate this to 32 bits - kernel can't divide a long long */ | |
3400 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; | |
3401 | int beacons = beacon_delay / (beacon_interval * 1000); | |
3402 | if (beacons > 1) | |
3403 | priv->wstats.miss.beacon += beacons - 1; | |
3404 | } | |
3405 | priv->last_beacon_timestamp = timestamp; | |
3406 | handle_beacon_probe(priv, capability, channel); | |
3407 | } | |
3408 | } | |
4d791aad CP |
3409 | |
3410 | if (priv->station_state == STATION_STATE_SCANNING) | |
3411 | store_bss_info(priv, header, capability, | |
3412 | beacon_interval, channel, rssi, | |
3413 | ssid_length, | |
3414 | &beacon->rates_el_id, | |
4861dd79 | 3415 | subtype == IEEE80211_STYPE_BEACON); |
1da177e4 LT |
3416 | } |
3417 | break; | |
4d791aad | 3418 | |
4861dd79 | 3419 | case IEEE80211_STYPE_AUTH: |
1da177e4 LT |
3420 | |
3421 | if (priv->station_state == STATION_STATE_AUTHENTICATING) | |
3422 | authenticate(priv, frame_len); | |
4d791aad | 3423 | |
1da177e4 | 3424 | break; |
4d791aad | 3425 | |
4861dd79 DW |
3426 | case IEEE80211_STYPE_ASSOC_RESP: |
3427 | case IEEE80211_STYPE_REASSOC_RESP: | |
4d791aad CP |
3428 | |
3429 | if (priv->station_state == STATION_STATE_ASSOCIATING || | |
1da177e4 LT |
3430 | priv->station_state == STATION_STATE_REASSOCIATING) |
3431 | associate(priv, frame_len, subtype); | |
4d791aad | 3432 | |
1da177e4 LT |
3433 | break; |
3434 | ||
4861dd79 | 3435 | case IEEE80211_STYPE_DISASSOC: |
4d791aad CP |
3436 | if (priv->station_is_associated && |
3437 | priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
3438 | is_frame_from_current_bss(priv, header)) { |
3439 | priv->station_was_associated = 0; | |
3440 | priv->station_is_associated = 0; | |
4d791aad | 3441 | |
1da177e4 LT |
3442 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
3443 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3444 | } | |
4d791aad | 3445 | |
1da177e4 LT |
3446 | break; |
3447 | ||
4861dd79 | 3448 | case IEEE80211_STYPE_DEAUTH: |
1da177e4 LT |
3449 | if (priv->operating_mode == IW_MODE_INFRA && |
3450 | is_frame_from_current_bss(priv, header)) { | |
3451 | priv->station_was_associated = 0; | |
3452 | ||
3453 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
3454 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3455 | } | |
4d791aad | 3456 | |
1da177e4 LT |
3457 | break; |
3458 | } | |
3459 | } | |
3460 | ||
3461 | /* run when timer expires */ | |
3462 | static void atmel_management_timer(u_long a) | |
3463 | { | |
4d791aad CP |
3464 | struct net_device *dev = (struct net_device *) a; |
3465 | struct atmel_private *priv = netdev_priv(dev); | |
3466 | unsigned long flags; | |
1da177e4 | 3467 | |
4d791aad CP |
3468 | /* Check if the card has been yanked. */ |
3469 | if (priv->card && priv->present_callback && | |
3470 | !(*priv->present_callback)(priv->card)) | |
3471 | return; | |
1da177e4 | 3472 | |
4d791aad CP |
3473 | spin_lock_irqsave(&priv->irqlock, flags); |
3474 | ||
3475 | switch (priv->station_state) { | |
1da177e4 | 3476 | |
4d791aad CP |
3477 | case STATION_STATE_AUTHENTICATING: |
3478 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { | |
3479 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3480 | priv->station_is_associated = 0; | |
3481 | priv->AuthenticationRequestRetryCnt = 0; | |
3482 | restart_search(priv); | |
3483 | } else { | |
4861dd79 | 3484 | int auth = WLAN_AUTH_OPEN; |
4d791aad CP |
3485 | priv->AuthenticationRequestRetryCnt++; |
3486 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
3487 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
73451379 | 3488 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3489 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3490 | send_authentication_request(priv, auth, NULL, 0); |
4d791aad | 3491 | } |
1da177e4 | 3492 | break; |
4d791aad CP |
3493 | |
3494 | case STATION_STATE_ASSOCIATING: | |
3495 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3496 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3497 | priv->station_is_associated = 0; | |
3498 | priv->AssociationRequestRetryCnt = 0; | |
3499 | restart_search(priv); | |
3500 | } else { | |
3501 | priv->AssociationRequestRetryCnt++; | |
3502 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3503 | send_association_request(priv, 0); | |
3504 | } | |
1da177e4 | 3505 | break; |
4d791aad CP |
3506 | |
3507 | case STATION_STATE_REASSOCIATING: | |
3508 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3509 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3510 | priv->station_is_associated = 0; | |
3511 | priv->ReAssociationRequestRetryCnt = 0; | |
3512 | restart_search(priv); | |
3513 | } else { | |
3514 | priv->ReAssociationRequestRetryCnt++; | |
3515 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3516 | send_association_request(priv, 1); | |
3517 | } | |
3518 | break; | |
3519 | ||
3520 | default: | |
3521 | break; | |
3522 | } | |
3523 | ||
3524 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
1da177e4 | 3525 | } |
4d791aad | 3526 | |
1da177e4 LT |
3527 | static void atmel_command_irq(struct atmel_private *priv) |
3528 | { | |
3529 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
3530 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); | |
3531 | int fast_scan; | |
3a1af6ff | 3532 | union iwreq_data wrqu; |
4d791aad CP |
3533 | |
3534 | if (status == CMD_STATUS_IDLE || | |
1da177e4 LT |
3535 | status == CMD_STATUS_IN_PROGRESS) |
3536 | return; | |
3537 | ||
8830cb67 | 3538 | switch (command) { |
1da177e4 LT |
3539 | case CMD_Start: |
3540 | if (status == CMD_STATUS_COMPLETE) { | |
3541 | priv->station_was_associated = priv->station_is_associated; | |
3542 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, | |
3543 | (u8 *)priv->CurrentBSSID, 6); | |
3544 | atmel_enter_state(priv, STATION_STATE_READY); | |
4d791aad | 3545 | } |
1da177e4 | 3546 | break; |
4d791aad | 3547 | |
1da177e4 LT |
3548 | case CMD_Scan: |
3549 | fast_scan = priv->fast_scan; | |
3550 | priv->fast_scan = 0; | |
4d791aad | 3551 | |
1da177e4 LT |
3552 | if (status != CMD_STATUS_COMPLETE) { |
3553 | atmel_scan(priv, 1); | |
3554 | } else { | |
3555 | int bss_index = retrieve_bss(priv); | |
3a1af6ff | 3556 | int notify_scan_complete = 1; |
1da177e4 LT |
3557 | if (bss_index != -1) { |
3558 | atmel_join_bss(priv, bss_index); | |
4d791aad | 3559 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
1da177e4 LT |
3560 | priv->SSID_size != 0) { |
3561 | start(priv, BSS_TYPE_AD_HOC); | |
3562 | } else { | |
3563 | priv->fast_scan = !fast_scan; | |
3564 | atmel_scan(priv, 1); | |
3a1af6ff | 3565 | notify_scan_complete = 0; |
1da177e4 LT |
3566 | } |
3567 | priv->site_survey_state = SITE_SURVEY_COMPLETED; | |
3a1af6ff DW |
3568 | if (notify_scan_complete) { |
3569 | wrqu.data.length = 0; | |
3570 | wrqu.data.flags = 0; | |
3571 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
3572 | } | |
1da177e4 LT |
3573 | } |
3574 | break; | |
4d791aad | 3575 | |
1da177e4 LT |
3576 | case CMD_SiteSurvey: |
3577 | priv->fast_scan = 0; | |
4d791aad | 3578 | |
1da177e4 LT |
3579 | if (status != CMD_STATUS_COMPLETE) |
3580 | return; | |
4d791aad | 3581 | |
1da177e4 LT |
3582 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
3583 | if (priv->station_is_associated) { | |
4d791aad | 3584 | atmel_enter_state(priv, STATION_STATE_READY); |
3a1af6ff DW |
3585 | wrqu.data.length = 0; |
3586 | wrqu.data.flags = 0; | |
3587 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
1da177e4 LT |
3588 | } else { |
3589 | atmel_scan(priv, 1); | |
3590 | } | |
3591 | break; | |
3592 | ||
3593 | case CMD_Join: | |
3594 | if (status == CMD_STATUS_COMPLETE) { | |
3595 | if (priv->operating_mode == IW_MODE_ADHOC) { | |
3596 | priv->station_was_associated = priv->station_is_associated; | |
3597 | atmel_enter_state(priv, STATION_STATE_READY); | |
3598 | } else { | |
4861dd79 | 3599 | int auth = WLAN_AUTH_OPEN; |
1da177e4 LT |
3600 | priv->AuthenticationRequestRetryCnt = 0; |
3601 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); | |
4d791aad | 3602 | |
1da177e4 LT |
3603 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
3604 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
73451379 | 3605 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3606 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3607 | send_authentication_request(priv, auth, NULL, 0); |
1da177e4 LT |
3608 | } |
3609 | return; | |
3610 | } | |
4d791aad | 3611 | |
1da177e4 | 3612 | atmel_scan(priv, 1); |
1da177e4 LT |
3613 | } |
3614 | } | |
3615 | ||
3616 | static int atmel_wakeup_firmware(struct atmel_private *priv) | |
3617 | { | |
3618 | struct host_info_struct *iface = &priv->host_info; | |
3619 | u16 mr1, mr3; | |
3620 | int i; | |
3621 | ||
3622 | if (priv->card_type == CARD_TYPE_SPI_FLASH) | |
3623 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
4d791aad | 3624 | |
1da177e4 LT |
3625 | /* wake up on-board processor */ |
3626 | atmel_clear_gcr(priv->dev, 0x0040); | |
3627 | atmel_write16(priv->dev, BSR, BSS_SRAM); | |
4d791aad | 3628 | |
1da177e4 LT |
3629 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
3630 | mdelay(100); | |
3631 | ||
3632 | /* and wait for it */ | |
4d791aad | 3633 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
1da177e4 LT |
3634 | mr1 = atmel_read16(priv->dev, MR1); |
3635 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3636 | |
3637 | if (mr3 & MAC_BOOT_COMPLETE) | |
1da177e4 LT |
3638 | break; |
3639 | if (mr1 & MAC_BOOT_COMPLETE && | |
3640 | priv->bus_type == BUS_TYPE_PCCARD) | |
3641 | break; | |
3642 | } | |
3643 | ||
3644 | if (i == 0) { | |
3645 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); | |
3c34a5d8 | 3646 | return -EIO; |
1da177e4 | 3647 | } |
4d791aad | 3648 | |
1da177e4 LT |
3649 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
3650 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); | |
3c34a5d8 | 3651 | return -ENODEV; |
1da177e4 | 3652 | } |
4d791aad CP |
3653 | |
3654 | /* now check for completion of MAC initialization through | |
3655 | the FunCtrl field of the IFACE, poll MR1 to detect completion of | |
3656 | MAC initialization, check completion status, set interrupt mask, | |
3657 | enables interrupts and calls Tx and Rx initialization functions */ | |
3658 | ||
1da177e4 | 3659 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE); |
4d791aad CP |
3660 | |
3661 | for (i = LOOP_RETRY_LIMIT; i; i--) { | |
1da177e4 LT |
3662 | mr1 = atmel_read16(priv->dev, MR1); |
3663 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3664 | |
3665 | if (mr3 & MAC_INIT_COMPLETE) | |
1da177e4 LT |
3666 | break; |
3667 | if (mr1 & MAC_INIT_COMPLETE && | |
3668 | priv->bus_type == BUS_TYPE_PCCARD) | |
3669 | break; | |
3670 | } | |
4d791aad | 3671 | |
1da177e4 | 3672 | if (i == 0) { |
4d791aad CP |
3673 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
3674 | priv->dev->name); | |
3c34a5d8 | 3675 | return -EIO; |
1da177e4 | 3676 | } |
4d791aad | 3677 | |
1da177e4 LT |
3678 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
3679 | if ((mr3 & MAC_INIT_COMPLETE) && | |
3680 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { | |
3681 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); | |
3c34a5d8 | 3682 | return -EIO; |
1da177e4 LT |
3683 | } |
3684 | if ((mr1 & MAC_INIT_COMPLETE) && | |
3685 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { | |
3686 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); | |
3c34a5d8 | 3687 | return -EIO; |
1da177e4 LT |
3688 | } |
3689 | ||
4d791aad | 3690 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
1da177e4 | 3691 | priv->host_info_base, sizeof(*iface)); |
4d791aad | 3692 | |
1da177e4 LT |
3693 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
3694 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); | |
3695 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); | |
3696 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); | |
3697 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); | |
3698 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); | |
3699 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); | |
3700 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); | |
3701 | iface->build_version = le16_to_cpu(iface->build_version); | |
3702 | iface->command_pos = le16_to_cpu(iface->command_pos); | |
3703 | iface->major_version = le16_to_cpu(iface->major_version); | |
3704 | iface->minor_version = le16_to_cpu(iface->minor_version); | |
3705 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); | |
3706 | iface->mac_status = le16_to_cpu(iface->mac_status); | |
3707 | ||
3c34a5d8 | 3708 | return 0; |
1da177e4 LT |
3709 | } |
3710 | ||
3711 | /* determine type of memory and MAC address */ | |
3712 | static int probe_atmel_card(struct net_device *dev) | |
3713 | { | |
3714 | int rc = 0; | |
3715 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 3716 | |
1da177e4 | 3717 | /* reset pccard */ |
4d791aad | 3718 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3719 | atmel_write16(dev, GCR, 0x0060); |
4d791aad | 3720 | |
1da177e4 LT |
3721 | atmel_write16(dev, GCR, 0x0040); |
3722 | mdelay(500); | |
4d791aad | 3723 | |
1da177e4 | 3724 | if (atmel_read16(dev, MR2) == 0) { |
4d791aad | 3725 | /* No stored firmware so load a small stub which just |
1da177e4 LT |
3726 | tells us the MAC address */ |
3727 | int i; | |
3728 | priv->card_type = CARD_TYPE_EEPROM; | |
3729 | atmel_write16(dev, BSR, BSS_IRAM); | |
3730 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); | |
3731 | atmel_set_gcr(dev, GCR_REMAP); | |
3732 | atmel_clear_gcr(priv->dev, 0x0040); | |
3733 | atmel_write16(dev, BSR, BSS_SRAM); | |
4d791aad | 3734 | for (i = LOOP_RETRY_LIMIT; i; i--) |
1da177e4 LT |
3735 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
3736 | break; | |
3737 | if (i == 0) { | |
3738 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); | |
3739 | } else { | |
3740 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); | |
3741 | /* got address, now squash it again until the network | |
3742 | interface is opened */ | |
4d791aad | 3743 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3744 | atmel_write16(dev, GCR, 0x0060); |
3745 | atmel_write16(dev, GCR, 0x0040); | |
3746 | rc = 1; | |
3747 | } | |
3748 | } else if (atmel_read16(dev, MR4) == 0) { | |
3749 | /* Mac address easy in this case. */ | |
3750 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; | |
4d791aad | 3751 | atmel_write16(dev, BSR, 1); |
1da177e4 LT |
3752 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
3753 | atmel_write16(dev, BSR, 0x200); | |
3754 | rc = 1; | |
3755 | } else { | |
3756 | /* Standard firmware in flash, boot it up and ask | |
3757 | for the Mac Address */ | |
3758 | priv->card_type = CARD_TYPE_SPI_FLASH; | |
3c34a5d8 | 3759 | if (atmel_wakeup_firmware(priv) == 0) { |
1da177e4 | 3760 | atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6); |
4d791aad | 3761 | |
1da177e4 LT |
3762 | /* got address, now squash it again until the network |
3763 | interface is opened */ | |
4d791aad | 3764 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3765 | atmel_write16(dev, GCR, 0x0060); |
3766 | atmel_write16(dev, GCR, 0x0040); | |
3767 | rc = 1; | |
3768 | } | |
3769 | } | |
4d791aad | 3770 | |
1da177e4 LT |
3771 | if (rc) { |
3772 | if (dev->dev_addr[0] == 0xFF) { | |
3370a895 JP |
3773 | static const u8 default_mac[] = { |
3774 | 0x00, 0x04, 0x25, 0x00, 0x00, 0x00 | |
3775 | }; | |
1da177e4 LT |
3776 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); |
3777 | memcpy(dev->dev_addr, default_mac, 6); | |
3778 | } | |
1da177e4 | 3779 | } |
4d791aad | 3780 | |
1da177e4 LT |
3781 | return rc; |
3782 | } | |
3783 | ||
1da177e4 LT |
3784 | /* Move the encyption information on the MIB structure. |
3785 | This routine is for the pre-WPA firmware: later firmware has | |
3786 | a different format MIB and a different routine. */ | |
4d791aad | 3787 | static void build_wep_mib(struct atmel_private *priv) |
1da177e4 LT |
3788 | { |
3789 | struct { /* NB this is matched to the hardware, don't change. */ | |
4d791aad | 3790 | u8 wep_is_on; |
1da177e4 LT |
3791 | u8 default_key; /* 0..3 */ |
3792 | u8 reserved; | |
3793 | u8 exclude_unencrypted; | |
4d791aad | 3794 | |
1da177e4 LT |
3795 | u32 WEPICV_error_count; |
3796 | u32 WEP_excluded_count; | |
4d791aad | 3797 | |
1da177e4 | 3798 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
4d791aad CP |
3799 | u8 encryption_level; /* 0, 1, 2 */ |
3800 | u8 reserved2[3]; | |
1da177e4 LT |
3801 | } mib; |
3802 | int i; | |
3803 | ||
3804 | mib.wep_is_on = priv->wep_is_on; | |
3805 | if (priv->wep_is_on) { | |
3806 | if (priv->wep_key_len[priv->default_key] > 5) | |
3807 | mib.encryption_level = 2; | |
3808 | else | |
4d791aad | 3809 | mib.encryption_level = 1; |
1da177e4 LT |
3810 | } else { |
3811 | mib.encryption_level = 0; | |
3812 | } | |
3813 | ||
3814 | mib.default_key = priv->default_key; | |
3815 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
4d791aad CP |
3816 | |
3817 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) | |
1da177e4 | 3818 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
4d791aad | 3819 | |
1da177e4 LT |
3820 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3821 | } | |
3822 | ||
3823 | static void build_wpa_mib(struct atmel_private *priv) | |
3824 | { | |
4d791aad | 3825 | /* This is for the later (WPA enabled) firmware. */ |
1da177e4 LT |
3826 | |
3827 | struct { /* NB this is matched to the hardware, don't change. */ | |
3828 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
3829 | u8 receiver_address[6]; | |
4d791aad | 3830 | u8 wep_is_on; |
1da177e4 LT |
3831 | u8 default_key; /* 0..3 */ |
3832 | u8 group_key; | |
3833 | u8 exclude_unencrypted; | |
3834 | u8 encryption_type; | |
3835 | u8 reserved; | |
4d791aad | 3836 | |
1da177e4 LT |
3837 | u32 WEPICV_error_count; |
3838 | u32 WEP_excluded_count; | |
4d791aad | 3839 | |
1da177e4 LT |
3840 | u8 key_RSC[4][8]; |
3841 | } mib; | |
4d791aad | 3842 | |
1da177e4 LT |
3843 | int i; |
3844 | ||
3845 | mib.wep_is_on = priv->wep_is_on; | |
3846 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
3847 | memcpy(mib.receiver_address, priv->CurrentBSSID, 6); | |
4d791aad | 3848 | |
1da177e4 LT |
3849 | /* zero all the keys before adding in valid ones. */ |
3850 | memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value)); | |
4d791aad | 3851 | |
1da177e4 | 3852 | if (priv->wep_is_on) { |
4d791aad CP |
3853 | /* There's a comment in the Atmel code to the effect that this |
3854 | is only valid when still using WEP, it may need to be set to | |
3855 | something to use WPA */ | |
1da177e4 | 3856 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
4d791aad | 3857 | |
1da177e4 LT |
3858 | mib.default_key = mib.group_key = 255; |
3859 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { | |
3860 | if (priv->wep_key_len[i] > 0) { | |
3861 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); | |
3862 | if (i == priv->default_key) { | |
3863 | mib.default_key = i; | |
3864 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; | |
4d791aad | 3865 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite; |
1da177e4 LT |
3866 | } else { |
3867 | mib.group_key = i; | |
3868 | priv->group_cipher_suite = priv->pairwise_cipher_suite; | |
8830cb67 | 3869 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; |
4d791aad | 3870 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite; |
1da177e4 LT |
3871 | } |
3872 | } | |
3873 | } | |
3874 | if (mib.default_key == 255) | |
3875 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; | |
3876 | if (mib.group_key == 255) | |
3877 | mib.group_key = mib.default_key; | |
4d791aad | 3878 | |
1da177e4 | 3879 | } |
4d791aad | 3880 | |
1da177e4 LT |
3881 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3882 | } | |
4d791aad CP |
3883 | |
3884 | static int reset_atmel_card(struct net_device *dev) | |
1da177e4 LT |
3885 | { |
3886 | /* do everything necessary to wake up the hardware, including | |
3887 | waiting for the lightning strike and throwing the knife switch.... | |
3888 | ||
4d791aad | 3889 | set all the Mib values which matter in the card to match |
1da177e4 LT |
3890 | their settings in the atmel_private structure. Some of these |
3891 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) | |
3892 | can only be changed by tearing down the world and coming back through | |
3893 | here. | |
3894 | ||
4d791aad CP |
3895 | This routine is also responsible for initialising some |
3896 | hardware-specific fields in the atmel_private structure, | |
25985edc | 3897 | including a copy of the firmware's hostinfo structure |
d535295b | 3898 | which is the route into the rest of the firmware datastructures. */ |
1da177e4 LT |
3899 | |
3900 | struct atmel_private *priv = netdev_priv(dev); | |
3901 | u8 configuration; | |
9a6301c1 | 3902 | int old_state = priv->station_state; |
3c34a5d8 | 3903 | int err = 0; |
4d791aad | 3904 | |
1da177e4 LT |
3905 | /* data to add to the firmware names, in priority order |
3906 | this implemenents firmware versioning */ | |
4d791aad | 3907 | |
1da177e4 LT |
3908 | static char *firmware_modifier[] = { |
3909 | "-wpa", | |
3910 | "", | |
3911 | NULL | |
3912 | }; | |
4d791aad | 3913 | |
1da177e4 | 3914 | /* reset pccard */ |
4d791aad | 3915 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3916 | atmel_write16(priv->dev, GCR, 0x0060); |
4d791aad | 3917 | |
1da177e4 LT |
3918 | /* stop card , disable interrupts */ |
3919 | atmel_write16(priv->dev, GCR, 0x0040); | |
4d791aad | 3920 | |
1da177e4 LT |
3921 | if (priv->card_type == CARD_TYPE_EEPROM) { |
3922 | /* copy in firmware if needed */ | |
3923 | const struct firmware *fw_entry = NULL; | |
2f26e8af | 3924 | const unsigned char *fw; |
1da177e4 LT |
3925 | int len = priv->firmware_length; |
3926 | if (!(fw = priv->firmware)) { | |
3927 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { | |
3928 | if (strlen(priv->firmware_id) == 0) { | |
3929 | printk(KERN_INFO | |
3930 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", | |
3931 | dev->name); | |
3932 | printk(KERN_INFO | |
4d791aad | 3933 | "%s: if not, use the firmware= module parameter.\n", |
1da177e4 LT |
3934 | dev->name); |
3935 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); | |
3936 | } | |
3c34a5d8 DW |
3937 | err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev); |
3938 | if (err != 0) { | |
4d791aad CP |
3939 | printk(KERN_ALERT |
3940 | "%s: firmware %s is missing, cannot continue.\n", | |
1da177e4 | 3941 | dev->name, priv->firmware_id); |
3c34a5d8 | 3942 | return err; |
1da177e4 LT |
3943 | } |
3944 | } else { | |
3945 | int fw_index = 0; | |
3946 | int success = 0; | |
3947 | ||
3948 | /* get firmware filename entry based on firmware type ID */ | |
3949 | while (fw_table[fw_index].fw_type != priv->firmware_type | |
3950 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) | |
3951 | fw_index++; | |
4d791aad | 3952 | |
1da177e4 LT |
3953 | /* construct the actual firmware file name */ |
3954 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { | |
3955 | int i; | |
3956 | for (i = 0; firmware_modifier[i]; i++) { | |
3957 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, | |
3958 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); | |
3959 | priv->firmware_id[31] = '\0'; | |
3960 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { | |
3961 | success = 1; | |
3962 | break; | |
3963 | } | |
3964 | } | |
3965 | } | |
3966 | if (!success) { | |
4d791aad CP |
3967 | printk(KERN_ALERT |
3968 | "%s: firmware %s is missing, cannot start.\n", | |
1da177e4 LT |
3969 | dev->name, priv->firmware_id); |
3970 | priv->firmware_id[0] = '\0'; | |
3c34a5d8 | 3971 | return -ENOENT; |
1da177e4 LT |
3972 | } |
3973 | } | |
4d791aad | 3974 | |
1da177e4 LT |
3975 | fw = fw_entry->data; |
3976 | len = fw_entry->size; | |
3977 | } | |
4d791aad | 3978 | |
8830cb67 | 3979 | if (len <= 0x6000) { |
1da177e4 LT |
3980 | atmel_write16(priv->dev, BSR, BSS_IRAM); |
3981 | atmel_copy_to_card(priv->dev, 0, fw, len); | |
3982 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
3983 | } else { | |
4d791aad | 3984 | /* Remap */ |
1da177e4 LT |
3985 | atmel_set_gcr(priv->dev, GCR_REMAP); |
3986 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3987 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); | |
3988 | atmel_write16(priv->dev, BSR, 0x2ff); | |
3989 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); | |
3990 | } | |
3991 | ||
74033025 | 3992 | release_firmware(fw_entry); |
1da177e4 LT |
3993 | } |
3994 | ||
3c34a5d8 DW |
3995 | err = atmel_wakeup_firmware(priv); |
3996 | if (err != 0) | |
3997 | return err; | |
1da177e4 LT |
3998 | |
3999 | /* Check the version and set the correct flag for wpa stuff, | |
4000 | old and new firmware is incompatible. | |
4001 | The pre-wpa 3com firmware reports major version 5, | |
4002 | the wpa 3com firmware is major version 4 and doesn't need | |
4003 | the 3com broken-ness filter. */ | |
4004 | priv->use_wpa = (priv->host_info.major_version == 4); | |
4005 | priv->radio_on_broken = (priv->host_info.major_version == 5); | |
4d791aad | 4006 | |
8830cb67 | 4007 | /* unmask all irq sources */ |
1da177e4 | 4008 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); |
4d791aad | 4009 | |
1da177e4 LT |
4010 | /* int Tx system and enable Tx */ |
4011 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); | |
4012 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); | |
4013 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); | |
4014 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); | |
4015 | ||
4d791aad CP |
4016 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
4017 | priv->tx_desc_head = 0; | |
4018 | priv->tx_desc_tail = 0; | |
1da177e4 LT |
4019 | priv->tx_desc_previous = 0; |
4020 | priv->tx_free_mem = priv->host_info.tx_buff_size; | |
4d791aad CP |
4021 | priv->tx_buff_head = 0; |
4022 | priv->tx_buff_tail = 0; | |
4023 | ||
4024 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
4025 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 LT |
4026 | configuration | FUNC_CTRL_TxENABLE); |
4027 | ||
4028 | /* init Rx system and enable */ | |
4029 | priv->rx_desc_head = 0; | |
4d791aad CP |
4030 | |
4031 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
4032 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 | 4033 | configuration | FUNC_CTRL_RxENABLE); |
4d791aad | 4034 | |
1da177e4 | 4035 | if (!priv->radio_on_broken) { |
4d791aad | 4036 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
1da177e4 | 4037 | CMD_STATUS_REJECTED_RADIO_OFF) { |
3c34a5d8 | 4038 | printk(KERN_INFO "%s: cannot turn the radio on.\n", |
1da177e4 | 4039 | dev->name); |
8830cb67 | 4040 | return -EIO; |
1da177e4 LT |
4041 | } |
4042 | } | |
4d791aad | 4043 | |
1da177e4 LT |
4044 | /* set up enough MIB values to run. */ |
4045 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); | |
4046 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); | |
4047 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); | |
4048 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); | |
4049 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); | |
4050 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); | |
4051 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble); | |
4d791aad | 4052 | atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS, |
1da177e4 LT |
4053 | priv->dev->dev_addr, 6); |
4054 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
4055 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
4056 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); | |
4057 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); | |
4058 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); | |
4059 | if (priv->use_wpa) | |
4060 | build_wpa_mib(priv); | |
4061 | else | |
4062 | build_wep_mib(priv); | |
4d791aad | 4063 | |
8830cb67 | 4064 | if (old_state == STATION_STATE_READY) { |
9a6301c1 DW |
4065 | union iwreq_data wrqu; |
4066 | ||
4067 | wrqu.data.length = 0; | |
4068 | wrqu.data.flags = 0; | |
4069 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
4070 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
4071 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
4072 | } | |
4073 | ||
3c34a5d8 | 4074 | return 0; |
1da177e4 LT |
4075 | } |
4076 | ||
4d791aad CP |
4077 | static void atmel_send_command(struct atmel_private *priv, int command, |
4078 | void *cmd, int cmd_size) | |
1da177e4 LT |
4079 | { |
4080 | if (cmd) | |
4d791aad | 4081 | atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET), |
1da177e4 | 4082 | cmd, cmd_size); |
4d791aad | 4083 | |
1da177e4 LT |
4084 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
4085 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); | |
4086 | } | |
4d791aad CP |
4087 | |
4088 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
4089 | void *cmd, int cmd_size) | |
1da177e4 LT |
4090 | { |
4091 | int i, status; | |
4d791aad | 4092 | |
1da177e4 | 4093 | atmel_send_command(priv, command, cmd, cmd_size); |
4d791aad | 4094 | |
1da177e4 LT |
4095 | for (i = 5000; i; i--) { |
4096 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
4d791aad | 4097 | if (status != CMD_STATUS_IDLE && |
1da177e4 LT |
4098 | status != CMD_STATUS_IN_PROGRESS) |
4099 | break; | |
4100 | udelay(20); | |
4101 | } | |
4d791aad | 4102 | |
1da177e4 LT |
4103 | if (i == 0) { |
4104 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); | |
4105 | status = CMD_STATUS_HOST_ERROR; | |
4d791aad | 4106 | } else { |
1da177e4 LT |
4107 | if (command != CMD_EnableRadio) |
4108 | status = CMD_STATUS_COMPLETE; | |
4109 | } | |
4d791aad | 4110 | |
1da177e4 LT |
4111 | return status; |
4112 | } | |
4113 | ||
4114 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) | |
4115 | { | |
4116 | struct get_set_mib m; | |
4117 | m.type = type; | |
4118 | m.size = 1; | |
4119 | m.index = index; | |
4120 | ||
4121 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4122 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); | |
4123 | } | |
4124 | ||
4125 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) | |
4126 | { | |
4127 | struct get_set_mib m; | |
4128 | m.type = type; | |
4129 | m.size = 1; | |
4130 | m.index = index; | |
4131 | m.data[0] = data; | |
4132 | ||
4133 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4134 | } | |
4135 | ||
4d791aad CP |
4136 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
4137 | u16 data) | |
1da177e4 LT |
4138 | { |
4139 | struct get_set_mib m; | |
4140 | m.type = type; | |
4141 | m.size = 2; | |
4142 | m.index = index; | |
4143 | m.data[0] = data; | |
4144 | m.data[1] = data >> 8; | |
4145 | ||
4146 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); | |
4147 | } | |
4148 | ||
4d791aad CP |
4149 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
4150 | u8 *data, int data_len) | |
1da177e4 LT |
4151 | { |
4152 | struct get_set_mib m; | |
4153 | m.type = type; | |
4154 | m.size = data_len; | |
4155 | m.index = index; | |
4156 | ||
4157 | if (data_len > MIB_MAX_DATA_BYTES) | |
4158 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4159 | |
1da177e4 LT |
4160 | memcpy(m.data, data, data_len); |
4161 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); | |
4162 | } | |
4163 | ||
4d791aad CP |
4164 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
4165 | u8 *data, int data_len) | |
1da177e4 LT |
4166 | { |
4167 | struct get_set_mib m; | |
4168 | m.type = type; | |
4169 | m.size = data_len; | |
4170 | m.index = index; | |
4d791aad | 4171 | |
1da177e4 LT |
4172 | if (data_len > MIB_MAX_DATA_BYTES) |
4173 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4174 | |
1da177e4 | 4175 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
4d791aad | 4176 | atmel_copy_to_host(priv->dev, data, |
1da177e4 LT |
4177 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
4178 | } | |
4179 | ||
4180 | static void atmel_writeAR(struct net_device *dev, u16 data) | |
4181 | { | |
4182 | int i; | |
4183 | outw(data, dev->base_addr + AR); | |
4184 | /* Address register appears to need some convincing..... */ | |
4d791aad | 4185 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
1da177e4 LT |
4186 | outw(data, dev->base_addr + AR); |
4187 | } | |
4188 | ||
4d791aad | 4189 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
2f26e8af | 4190 | const unsigned char *src, u16 len) |
1da177e4 LT |
4191 | { |
4192 | int i; | |
4193 | atmel_writeAR(dev, dest); | |
4194 | if (dest % 2) { | |
4195 | atmel_write8(dev, DR, *src); | |
4196 | src++; len--; | |
4197 | } | |
4198 | for (i = len; i > 1 ; i -= 2) { | |
4199 | u8 lb = *src++; | |
4200 | u8 hb = *src++; | |
4201 | atmel_write16(dev, DR, lb | (hb << 8)); | |
4202 | } | |
4203 | if (i) | |
4204 | atmel_write8(dev, DR, *src); | |
4205 | } | |
4206 | ||
4d791aad CP |
4207 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
4208 | u16 src, u16 len) | |
1da177e4 LT |
4209 | { |
4210 | int i; | |
4211 | atmel_writeAR(dev, src); | |
4212 | if (src % 2) { | |
4213 | *dest = atmel_read8(dev, DR); | |
4214 | dest++; len--; | |
4215 | } | |
4216 | for (i = len; i > 1 ; i -= 2) { | |
4217 | u16 hw = atmel_read16(dev, DR); | |
4218 | *dest++ = hw; | |
4219 | *dest++ = hw >> 8; | |
4220 | } | |
4221 | if (i) | |
4222 | *dest = atmel_read8(dev, DR); | |
4223 | } | |
4224 | ||
4225 | static void atmel_set_gcr(struct net_device *dev, u16 mask) | |
4226 | { | |
4227 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); | |
4228 | } | |
4229 | ||
4230 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) | |
4231 | { | |
4232 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); | |
4233 | } | |
4234 | ||
4235 | static int atmel_lock_mac(struct atmel_private *priv) | |
4236 | { | |
4237 | int i, j = 20; | |
4238 | retry: | |
4239 | for (i = 5000; i; i--) { | |
4240 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) | |
4241 | break; | |
4242 | udelay(20); | |
4243 | } | |
4d791aad CP |
4244 | |
4245 | if (!i) | |
4246 | return 0; /* timed out */ | |
4247 | ||
1da177e4 LT |
4248 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
4249 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { | |
4250 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad CP |
4251 | if (!j--) |
4252 | return 0; /* timed out */ | |
1da177e4 LT |
4253 | goto retry; |
4254 | } | |
4d791aad | 4255 | |
1da177e4 LT |
4256 | return 1; |
4257 | } | |
4258 | ||
4259 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) | |
4260 | { | |
4d791aad | 4261 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
4262 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
4263 | atmel_write16(priv->dev, DR, data >> 16); | |
4264 | } | |
4265 | ||
4266 | /***************************************************************************/ | |
4267 | /* There follows the source form of the MAC address reading firmware */ | |
4268 | /***************************************************************************/ | |
4269 | #if 0 | |
4270 | ||
4271 | /* Copyright 2003 Matthew T. Russotto */ | |
4272 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ | |
4273 | /* included in "atmel wireless lan drivers" package */ | |
4274 | /** | |
4275 | This file is part of net.russotto.AtmelMACFW, hereto referred to | |
4276 | as AtmelMACFW | |
4277 | ||
4278 | AtmelMACFW is free software; you can redistribute it and/or modify | |
4279 | it under the terms of the GNU General Public License version 2 | |
4280 | as published by the Free Software Foundation. | |
4281 | ||
4282 | AtmelMACFW is distributed in the hope that it will be useful, | |
4283 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
4284 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
4285 | GNU General Public License for more details. | |
4286 | ||
4287 | You should have received a copy of the GNU General Public License | |
4288 | along with AtmelMACFW; if not, write to the Free Software | |
4289 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
4290 | ||
4291 | ****************************************************************************/ | |
4292 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ | |
4293 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ | |
4294 | /* It only works on SPI EEPROM versions of the card. */ | |
4295 | ||
4296 | /* This firmware initializes the SPI controller and clock, reads the MAC */ | |
4297 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ | |
4298 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ | |
4299 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ | |
4300 | /* MR4, for investigational purposes (maybe we can determine chip type */ | |
4301 | /* from that?) */ | |
4302 | ||
4303 | .org 0 | |
4304 | .set MRBASE, 0x8000000 | |
4305 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ | |
4306 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ | |
4307 | .set SRAM_BASE, 0x02000000 | |
4308 | .set SP_BASE, 0x0F300000 | |
4309 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ | |
4310 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ | |
4311 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ | |
4312 | .set STACK_BASE, 0x5600 | |
4313 | .set SP_SR, 0x10 | |
4314 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ | |
4315 | .set SP_RDRF, 1 /* status register bit -- RDR full */ | |
4316 | .set SP_SWRST, 0x80 | |
4317 | .set SP_SPIEN, 0x1 | |
4318 | .set SP_CR, 0 /* control register */ | |
4319 | .set SP_MR, 4 /* mode register */ | |
4320 | .set SP_RDR, 0x08 /* Read Data Register */ | |
4321 | .set SP_TDR, 0x0C /* Transmit Data Register */ | |
4322 | .set SP_CSR0, 0x30 /* chip select registers */ | |
4323 | .set SP_CSR1, 0x34 | |
4324 | .set SP_CSR2, 0x38 | |
4325 | .set SP_CSR3, 0x3C | |
4326 | .set NVRAM_CMD_RDSR, 5 /* read status register */ | |
4327 | .set NVRAM_CMD_READ, 3 /* read data */ | |
4328 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ | |
4329 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the | |
4330 | serial output, since SO is normally high. But it | |
4331 | does cause 8 clock cycles and thus 8 bits to be | |
4332 | clocked in to the chip. See Atmel's SPI | |
4d791aad | 4333 | controller (e.g. AT91M55800) timing and 4K |
1da177e4 | 4334 | SPI EEPROM manuals */ |
4d791aad | 4335 | |
1da177e4 LT |
4336 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
4337 | .set NVRAM_IMAGE, 0x02000200 | |
4338 | .set NVRAM_LENGTH, 0x0200 | |
4339 | .set MAC_ADDRESS_MIB, SRAM_BASE | |
4340 | .set MAC_ADDRESS_LENGTH, 6 | |
8830cb67 | 4341 | .set MAC_BOOT_FLAG, 0x10 |
1da177e4 LT |
4342 | .set MR1, 0 |
4343 | .set MR2, 4 | |
4344 | .set MR3, 8 | |
4345 | .set MR4, 0xC | |
4346 | RESET_VECTOR: | |
8830cb67 | 4347 | b RESET_HANDLER |
4d791aad | 4348 | UNDEF_VECTOR: |
8830cb67 | 4349 | b HALT1 |
4d791aad | 4350 | SWI_VECTOR: |
8830cb67 | 4351 | b HALT1 |
4d791aad | 4352 | IABORT_VECTOR: |
8830cb67 | 4353 | b HALT1 |
4d791aad CP |
4354 | DABORT_VECTOR: |
4355 | RESERVED_VECTOR: | |
8830cb67 | 4356 | b HALT1 |
4d791aad | 4357 | IRQ_VECTOR: |
8830cb67 | 4358 | b HALT1 |
4d791aad | 4359 | FIQ_VECTOR: |
1da177e4 LT |
4360 | b HALT1 |
4361 | HALT1: b HALT1 | |
4362 | RESET_HANDLER: | |
4363 | mov r0, #CPSR_INITIAL | |
4364 | msr CPSR_c, r0 /* This is probably unnecessary */ | |
4d791aad | 4365 | |
1da177e4 LT |
4366 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
4367 | ldr r0, =SPI_CGEN_BASE | |
4368 | mov r1, #0 | |
4369 | mov r1, r1, lsl #3 | |
8830cb67 | 4370 | orr r1, r1, #0 |
1da177e4 LT |
4371 | str r1, [r0] |
4372 | ldr r1, [r0, #28] | |
4373 | bic r1, r1, #16 | |
4374 | str r1, [r0, #28] | |
4375 | mov r1, #1 | |
4376 | str r1, [r0, #8] | |
4d791aad | 4377 | |
1da177e4 LT |
4378 | ldr r0, =MRBASE |
4379 | mov r1, #0 | |
4380 | strh r1, [r0, #MR1] | |
4381 | strh r1, [r0, #MR2] | |
4382 | strh r1, [r0, #MR3] | |
4383 | strh r1, [r0, #MR4] | |
4384 | ||
4385 | mov sp, #STACK_BASE | |
4386 | bl SP_INIT | |
4387 | mov r0, #10 | |
4388 | bl DELAY9 | |
4389 | bl GET_MAC_ADDR | |
4390 | bl GET_WHOLE_NVRAM | |
4391 | ldr r0, =MRBASE | |
4392 | ldr r1, =MAC_ADDRESS_MIB | |
4393 | strh r1, [r0, #MR2] | |
4394 | ldr r1, =NVRAM_IMAGE | |
4395 | strh r1, [r0, #MR4] | |
4396 | mov r1, #MAC_BOOT_FLAG | |
4397 | strh r1, [r0, #MR3] | |
4398 | HALT2: b HALT2 | |
4399 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM | |
4400 | GET_WHOLE_NVRAM: | |
4401 | stmdb sp!, {lr} | |
4402 | mov r2, #0 /* 0th bytes of NVRAM */ | |
4403 | mov r3, #NVRAM_LENGTH | |
4404 | mov r1, #0 /* not used in routine */ | |
4405 | ldr r0, =NVRAM_IMAGE | |
4406 | bl NVRAM_XFER | |
4407 | ldmia sp!, {lr} | |
4408 | bx lr | |
4409 | .endfunc | |
4d791aad | 4410 | |
1da177e4 LT |
4411 | .func Get_MAC_Addr, GET_MAC_ADDR |
4412 | GET_MAC_ADDR: | |
4413 | stmdb sp!, {lr} | |
4414 | mov r2, #0x120 /* address of MAC Address within NVRAM */ | |
4415 | mov r3, #MAC_ADDRESS_LENGTH | |
4416 | mov r1, #0 /* not used in routine */ | |
4417 | ldr r0, =MAC_ADDRESS_MIB | |
4418 | bl NVRAM_XFER | |
4419 | ldmia sp!, {lr} | |
4420 | bx lr | |
4421 | .endfunc | |
4422 | .ltorg | |
4423 | .func Delay9, DELAY9 | |
4424 | DELAY9: | |
4425 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ | |
4d791aad | 4426 | DELAYLOOP: |
1da177e4 LT |
4427 | beq DELAY9_done |
4428 | subs r0, r0, #1 | |
4429 | b DELAYLOOP | |
4d791aad | 4430 | DELAY9_done: |
1da177e4 | 4431 | bx lr |
4d791aad | 4432 | .endfunc |
1da177e4 LT |
4433 | |
4434 | .func SP_Init, SP_INIT | |
4435 | SP_INIT: | |
4436 | mov r1, #SP_SWRST | |
4437 | ldr r0, =SP_BASE | |
4438 | str r1, [r0, #SP_CR] /* reset the SPI */ | |
4439 | mov r1, #0 | |
4440 | str r1, [r0, #SP_CR] /* release SPI from reset state */ | |
4441 | mov r1, #SP_SPIEN | |
4442 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ | |
4443 | str r1, [r0, #SP_CR] /* enable the SPI */ | |
4444 | ||
4445 | /* My guess would be this turns on the SPI clock */ | |
4446 | ldr r3, =SPI_CGEN_BASE | |
4447 | ldr r1, [r3, #28] | |
4448 | orr r1, r1, #0x2000 | |
4449 | str r1, [r3, #28] | |
4450 | ||
4451 | ldr r1, =0x2000c01 | |
4452 | str r1, [r0, #SP_CSR0] | |
4453 | ldr r1, =0x2000201 | |
4454 | str r1, [r0, #SP_CSR1] | |
4455 | str r1, [r0, #SP_CSR2] | |
4456 | str r1, [r0, #SP_CSR3] | |
4457 | ldr r1, [r0, #SP_SR] | |
4458 | ldr r0, [r0, #SP_RDR] | |
4459 | bx lr | |
4460 | .endfunc | |
4d791aad | 4461 | .func NVRAM_Init, NVRAM_INIT |
1da177e4 LT |
4462 | NVRAM_INIT: |
4463 | ldr r1, =SP_BASE | |
4464 | ldr r0, [r1, #SP_RDR] | |
4465 | mov r0, #NVRAM_CMD_RDSR | |
4466 | str r0, [r1, #SP_TDR] | |
4d791aad | 4467 | SP_loop1: |
1da177e4 LT |
4468 | ldr r0, [r1, #SP_SR] |
4469 | tst r0, #SP_TDRE | |
4470 | beq SP_loop1 | |
4471 | ||
4472 | mov r0, #SPI_8CLOCKS | |
4d791aad CP |
4473 | str r0, [r1, #SP_TDR] |
4474 | SP_loop2: | |
1da177e4 LT |
4475 | ldr r0, [r1, #SP_SR] |
4476 | tst r0, #SP_TDRE | |
4477 | beq SP_loop2 | |
4478 | ||
4479 | ldr r0, [r1, #SP_RDR] | |
4d791aad | 4480 | SP_loop3: |
1da177e4 LT |
4481 | ldr r0, [r1, #SP_SR] |
4482 | tst r0, #SP_RDRF | |
4483 | beq SP_loop3 | |
4484 | ||
4485 | ldr r0, [r1, #SP_RDR] | |
4486 | and r0, r0, #255 | |
4487 | bx lr | |
4488 | .endfunc | |
4d791aad | 4489 | |
1da177e4 LT |
4490 | .func NVRAM_Xfer, NVRAM_XFER |
4491 | /* r0 = dest address */ | |
4492 | /* r1 = not used */ | |
4493 | /* r2 = src address within NVRAM */ | |
4494 | /* r3 = length */ | |
4495 | NVRAM_XFER: | |
4496 | stmdb sp!, {r4, r5, lr} | |
4497 | mov r5, r0 /* save r0 (dest address) */ | |
4498 | mov r4, r3 /* save r3 (length) */ | |
4499 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ | |
4500 | and r0, r0, #8 | |
4d791aad | 4501 | add r0, r0, #NVRAM_CMD_READ |
1da177e4 LT |
4502 | ldr r1, =NVRAM_SCRATCH |
4503 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ | |
4504 | strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */ | |
4d791aad | 4505 | _local1: |
1da177e4 LT |
4506 | bl NVRAM_INIT |
4507 | tst r0, #NVRAM_SR_RDY | |
4508 | bne _local1 | |
4509 | mov r0, #20 | |
4510 | bl DELAY9 | |
4511 | mov r2, r4 /* length */ | |
4512 | mov r1, r5 /* dest address */ | |
4513 | mov r0, #2 /* bytes to transfer in command */ | |
4514 | bl NVRAM_XFER2 | |
4515 | ldmia sp!, {r4, r5, lr} | |
4516 | bx lr | |
4517 | .endfunc | |
4518 | ||
4519 | .func NVRAM_Xfer2, NVRAM_XFER2 | |
4520 | NVRAM_XFER2: | |
4521 | stmdb sp!, {r4, r5, r6, lr} | |
4522 | ldr r4, =SP_BASE | |
4523 | mov r3, #0 | |
4524 | cmp r0, #0 | |
4525 | bls _local2 | |
4526 | ldr r5, =NVRAM_SCRATCH | |
4d791aad | 4527 | _local4: |
1da177e4 LT |
4528 | ldrb r6, [r5, r3] |
4529 | str r6, [r4, #SP_TDR] | |
4530 | _local3: | |
4531 | ldr r6, [r4, #SP_SR] | |
4532 | tst r6, #SP_TDRE | |
4533 | beq _local3 | |
4534 | add r3, r3, #1 | |
4535 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ | |
4536 | blo _local4 | |
4537 | _local2: | |
4538 | mov r3, #SPI_8CLOCKS | |
4539 | str r3, [r4, #SP_TDR] | |
4540 | ldr r0, [r4, #SP_RDR] | |
4d791aad | 4541 | _local5: |
1da177e4 LT |
4542 | ldr r0, [r4, #SP_SR] |
4543 | tst r0, #SP_RDRF | |
4544 | beq _local5 | |
4545 | ldr r0, [r4, #SP_RDR] /* what's this byte? It's the byte read while writing the TDR -- nonsense, because the NVRAM doesn't read and write at the same time */ | |
4546 | mov r0, #0 | |
4547 | cmp r2, #0 /* r2 is # of bytes to copy in */ | |
4548 | bls _local6 | |
4d791aad | 4549 | _local7: |
1da177e4 LT |
4550 | ldr r5, [r4, #SP_SR] |
4551 | tst r5, #SP_TDRE | |
4552 | beq _local7 | |
4553 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ | |
4d791aad | 4554 | _local8: |
1da177e4 LT |
4555 | ldr r5, [r4, #SP_SR] |
4556 | tst r5, #SP_RDRF | |
4557 | beq _local8 | |
4558 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ | |
4559 | strb r5, [r1], #1 /* postindexed */ | |
4560 | add r0, r0, #1 | |
4561 | cmp r0, r2 | |
4562 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ | |
4563 | _local6: | |
4564 | mov r0, #200 | |
4565 | bl DELAY9 | |
4566 | ldmia sp!, {r4, r5, r6, lr} | |
4567 | bx lr | |
4568 | #endif |