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1da177e4 LT |
1 | /*** -*- linux-c -*- ********************************************************** |
2 | ||
3 | Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. | |
4 | ||
5 | Copyright 2000-2001 ATMEL Corporation. | |
6 | Copyright 2003-2004 Simon Kelley. | |
7 | ||
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 LT |
42 | #include <linux/init.h> |
43 | ||
44 | #include <linux/kernel.h> | |
45 | #include <linux/sched.h> | |
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> | |
51 | #include <asm/io.h> | |
52 | #include <asm/system.h> | |
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> | |
64 | #include <linux/byteorder/generic.h> | |
65 | #include <linux/crc32.h> | |
66 | #include <linux/proc_fs.h> | |
67 | #include <linux/device.h> | |
68 | #include <linux/moduleparam.h> | |
69 | #include <linux/firmware.h> | |
b453872c | 70 | #include <net/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[] = { | |
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 } | |
101 | }; | |
102 | ||
103 | #define MAX_SSID_LENGTH 32 | |
104 | #define MGMT_JIFFIES (256 * HZ / 100) | |
105 | ||
4d791aad | 106 | #define MAX_BSS_ENTRIES 64 |
1da177e4 LT |
107 | |
108 | /* registers */ | |
4d791aad CP |
109 | #define GCR 0x00 // (SIR0) General Configuration Register |
110 | #define BSR 0x02 // (SIR1) Bank Switching Select Register | |
1da177e4 LT |
111 | #define AR 0x04 |
112 | #define DR 0x08 | |
4d791aad CP |
113 | #define MR1 0x12 // Mirror Register 1 |
114 | #define MR2 0x14 // Mirror Register 2 | |
115 | #define MR3 0x16 // Mirror Register 3 | |
116 | #define MR4 0x18 // Mirror Register 4 | |
1da177e4 LT |
117 | |
118 | #define GPR1 0x0c | |
119 | #define GPR2 0x0e | |
120 | #define GPR3 0x10 | |
121 | // | |
122 | // Constants for the GCR register. | |
123 | // | |
124 | #define GCR_REMAP 0x0400 // Remap internal SRAM to 0 | |
4d791aad | 125 | #define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset) |
1da177e4 | 126 | #define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset) |
4d791aad | 127 | #define GCR_ENINT 0x0002 // Enable Interrupts |
1da177e4 LT |
128 | #define GCR_ACKINT 0x0008 // Acknowledge Interrupts |
129 | ||
130 | #define BSS_SRAM 0x0200 // AMBA module selection --> SRAM | |
131 | #define BSS_IRAM 0x0100 // AMBA module selection --> IRAM | |
132 | // | |
133 | // Constants for the MR registers. | |
134 | // | |
135 | #define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed | |
136 | #define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed | |
137 | #define MAC_INIT_OK 0x0002 // MAC boot has been completed | |
138 | ||
1da177e4 LT |
139 | #define MIB_MAX_DATA_BYTES 212 |
140 | #define MIB_HEADER_SIZE 4 /* first four fields */ | |
141 | ||
142 | struct get_set_mib { | |
143 | u8 type; | |
144 | u8 size; | |
145 | u8 index; | |
146 | u8 reserved; | |
147 | u8 data[MIB_MAX_DATA_BYTES]; | |
148 | }; | |
149 | ||
150 | struct rx_desc { | |
151 | u32 Next; | |
152 | u16 MsduPos; | |
153 | u16 MsduSize; | |
4d791aad | 154 | |
1da177e4 LT |
155 | u8 State; |
156 | u8 Status; | |
157 | u8 Rate; | |
158 | u8 Rssi; | |
159 | u8 LinkQuality; | |
160 | u8 PreambleType; | |
161 | u16 Duration; | |
162 | u32 RxTime; | |
1da177e4 LT |
163 | }; |
164 | ||
165 | #define RX_DESC_FLAG_VALID 0x80 | |
166 | #define RX_DESC_FLAG_CONSUMED 0x40 | |
167 | #define RX_DESC_FLAG_IDLE 0x00 | |
168 | ||
169 | #define RX_STATUS_SUCCESS 0x00 | |
170 | ||
171 | #define RX_DESC_MSDU_POS_OFFSET 4 | |
172 | #define RX_DESC_MSDU_SIZE_OFFSET 6 | |
173 | #define RX_DESC_FLAGS_OFFSET 8 | |
174 | #define RX_DESC_STATUS_OFFSET 9 | |
175 | #define RX_DESC_RSSI_OFFSET 11 | |
176 | #define RX_DESC_LINK_QUALITY_OFFSET 12 | |
177 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 | |
178 | #define RX_DESC_DURATION_OFFSET 14 | |
179 | #define RX_DESC_RX_TIME_OFFSET 16 | |
180 | ||
1da177e4 LT |
181 | struct tx_desc { |
182 | u32 NextDescriptor; | |
183 | u16 TxStartOfFrame; | |
184 | u16 TxLength; | |
4d791aad | 185 | |
1da177e4 LT |
186 | u8 TxState; |
187 | u8 TxStatus; | |
188 | u8 RetryCount; | |
4d791aad | 189 | |
1da177e4 LT |
190 | u8 TxRate; |
191 | ||
192 | u8 KeyIndex; | |
193 | u8 ChiperType; | |
194 | u8 ChipreLength; | |
195 | u8 Reserved1; | |
196 | ||
197 | u8 Reserved; | |
198 | u8 PacketType; | |
199 | u16 HostTxLength; | |
1da177e4 LT |
200 | }; |
201 | ||
1da177e4 LT |
202 | #define TX_DESC_NEXT_OFFSET 0 |
203 | #define TX_DESC_POS_OFFSET 4 | |
204 | #define TX_DESC_SIZE_OFFSET 6 | |
205 | #define TX_DESC_FLAGS_OFFSET 8 | |
206 | #define TX_DESC_STATUS_OFFSET 9 | |
207 | #define TX_DESC_RETRY_OFFSET 10 | |
208 | #define TX_DESC_RATE_OFFSET 11 | |
209 | #define TX_DESC_KEY_INDEX_OFFSET 12 | |
210 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 | |
211 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 | |
212 | #define TX_DESC_PACKET_TYPE_OFFSET 17 | |
213 | #define TX_DESC_HOST_LENGTH_OFFSET 18 | |
214 | ||
1da177e4 LT |
215 | /////////////////////////////////////////////////////// |
216 | // Host-MAC interface | |
217 | /////////////////////////////////////////////////////// | |
218 | ||
219 | #define TX_STATUS_SUCCESS 0x00 | |
220 | ||
221 | #define TX_FIRM_OWN 0x80 | |
222 | #define TX_DONE 0x40 | |
223 | ||
1da177e4 LT |
224 | #define TX_ERROR 0x01 |
225 | ||
226 | #define TX_PACKET_TYPE_DATA 0x01 | |
227 | #define TX_PACKET_TYPE_MGMT 0x02 | |
228 | ||
229 | #define ISR_EMPTY 0x00 // no bits set in ISR | |
230 | #define ISR_TxCOMPLETE 0x01 // packet transmitted | |
231 | #define ISR_RxCOMPLETE 0x02 // packet received | |
232 | #define ISR_RxFRAMELOST 0x04 // Rx Frame lost | |
233 | #define ISR_FATAL_ERROR 0x08 // Fatal error | |
234 | #define ISR_COMMAND_COMPLETE 0x10 // command completed | |
235 | #define ISR_OUT_OF_RANGE 0x20 // command completed | |
236 | #define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge | |
4d791aad | 237 | #define ISR_GENERIC_IRQ 0x80 |
1da177e4 LT |
238 | |
239 | #define Local_Mib_Type 0x01 | |
240 | #define Mac_Address_Mib_Type 0x02 | |
241 | #define Mac_Mib_Type 0x03 | |
242 | #define Statistics_Mib_Type 0x04 | |
243 | #define Mac_Mgmt_Mib_Type 0x05 | |
244 | #define Mac_Wep_Mib_Type 0x06 | |
245 | #define Phy_Mib_Type 0x07 | |
246 | #define Multi_Domain_MIB 0x08 | |
247 | ||
248 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
249 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 | |
250 | #define MAC_MIB_RTS_THRESHOLD_POS 10 | |
251 | #define MAC_MIB_SHORT_RETRY_POS 16 | |
252 | #define MAC_MIB_LONG_RETRY_POS 17 | |
253 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 | |
254 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 | |
255 | #define MAC_MGMT_MIB_STATION_ID_POS 6 | |
256 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 | |
257 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
258 | #define MAC_MGMT_MIB_PS_MODE_POS 53 | |
259 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 | |
260 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 | |
261 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 | |
262 | #define PHY_MIB_CHANNEL_POS 14 | |
263 | #define PHY_MIB_RATE_SET_POS 20 | |
264 | #define PHY_MIB_REG_DOMAIN_POS 26 | |
265 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 | |
266 | #define LOCAL_MIB_SSID_SIZE 5 | |
267 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 | |
268 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 | |
269 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 | |
270 | #define LOCAL_MIB_PREAMBLE_TYPE 9 | |
271 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 | |
272 | ||
1da177e4 LT |
273 | #define CMD_Set_MIB_Vars 0x01 |
274 | #define CMD_Get_MIB_Vars 0x02 | |
275 | #define CMD_Scan 0x03 | |
276 | #define CMD_Join 0x04 | |
277 | #define CMD_Start 0x05 | |
278 | #define CMD_EnableRadio 0x06 | |
279 | #define CMD_DisableRadio 0x07 | |
280 | #define CMD_SiteSurvey 0x0B | |
281 | ||
282 | #define CMD_STATUS_IDLE 0x00 | |
283 | #define CMD_STATUS_COMPLETE 0x01 | |
284 | #define CMD_STATUS_UNKNOWN 0x02 | |
285 | #define CMD_STATUS_INVALID_PARAMETER 0x03 | |
286 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 | |
287 | #define CMD_STATUS_TIME_OUT 0x07 | |
288 | #define CMD_STATUS_IN_PROGRESS 0x08 | |
289 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 | |
290 | #define CMD_STATUS_HOST_ERROR 0xFF | |
291 | #define CMD_STATUS_BUSY 0xFE | |
292 | ||
1da177e4 LT |
293 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
294 | #define CMD_BLOCK_STATUS_OFFSET 1 | |
295 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 | |
296 | ||
297 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 | |
298 | ||
299 | #define MGMT_FRAME_BODY_OFFSET 24 | |
300 | #define MAX_AUTHENTICATION_RETRIES 3 | |
4d791aad | 301 | #define MAX_ASSOCIATION_RETRIES 3 |
1da177e4 LT |
302 | |
303 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 | |
304 | ||
305 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ | |
306 | #define LOOP_RETRY_LIMIT 500000 | |
307 | ||
4d791aad CP |
308 | #define ACTIVE_MODE 1 |
309 | #define PS_MODE 2 | |
1da177e4 LT |
310 | |
311 | #define MAX_ENCRYPTION_KEYS 4 | |
312 | #define MAX_ENCRYPTION_KEY_SIZE 40 | |
313 | ||
314 | /////////////////////////////////////////////////////////////////////////// | |
315 | // 802.11 related definitions | |
316 | /////////////////////////////////////////////////////////////////////////// | |
317 | ||
318 | // | |
319 | // Regulatory Domains | |
320 | // | |
321 | ||
322 | #define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA | |
323 | #define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada | |
324 | #define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France) | |
325 | #define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain | |
326 | #define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France | |
327 | #define REG_DOMAIN_MKK 0x40 //Channel 14 Japan | |
328 | #define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1) | |
329 | #define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL | |
330 | ||
4d791aad | 331 | #define BSS_TYPE_AD_HOC 1 |
1da177e4 LT |
332 | #define BSS_TYPE_INFRASTRUCTURE 2 |
333 | ||
334 | #define SCAN_TYPE_ACTIVE 0 | |
335 | #define SCAN_TYPE_PASSIVE 1 | |
336 | ||
337 | #define LONG_PREAMBLE 0 | |
338 | #define SHORT_PREAMBLE 1 | |
339 | #define AUTO_PREAMBLE 2 | |
340 | ||
341 | #define DATA_FRAME_WS_HEADER_SIZE 30 | |
342 | ||
4d791aad | 343 | /* promiscuous mode control */ |
1da177e4 LT |
344 | #define PROM_MODE_OFF 0x0 |
345 | #define PROM_MODE_UNKNOWN 0x1 | |
346 | #define PROM_MODE_CRC_FAILED 0x2 | |
347 | #define PROM_MODE_DUPLICATED 0x4 | |
348 | #define PROM_MODE_MGMT 0x8 | |
349 | #define PROM_MODE_CTRL 0x10 | |
350 | #define PROM_MODE_BAD_PROTOCOL 0x20 | |
351 | ||
4d791aad | 352 | #define IFACE_INT_STATUS_OFFSET 0 |
1da177e4 LT |
353 | #define IFACE_INT_MASK_OFFSET 1 |
354 | #define IFACE_LOCKOUT_HOST_OFFSET 2 | |
355 | #define IFACE_LOCKOUT_MAC_OFFSET 3 | |
356 | #define IFACE_FUNC_CTRL_OFFSET 28 | |
357 | #define IFACE_MAC_STAT_OFFSET 30 | |
358 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 | |
359 | ||
4d791aad | 360 | #define CIPHER_SUITE_NONE 0 |
1da177e4 LT |
361 | #define CIPHER_SUITE_WEP_64 1 |
362 | #define CIPHER_SUITE_TKIP 2 | |
363 | #define CIPHER_SUITE_AES 3 | |
364 | #define CIPHER_SUITE_CCX 4 | |
365 | #define CIPHER_SUITE_WEP_128 5 | |
366 | ||
367 | // | |
368 | // IFACE MACROS & definitions | |
369 | // | |
370 | // | |
371 | ||
4d791aad | 372 | // FuncCtrl field: |
1da177e4 LT |
373 | // |
374 | #define FUNC_CTRL_TxENABLE 0x10 | |
375 | #define FUNC_CTRL_RxENABLE 0x20 | |
4d791aad | 376 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
1da177e4 LT |
377 | |
378 | /* A stub firmware image which reads the MAC address from NVRAM on the card. | |
379 | For copyright information and source see the end of this file. */ | |
380 | static u8 mac_reader[] = { | |
381 | 0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea, | |
382 | 0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea, | |
383 | 0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
384 | 0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5, | |
385 | 0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5, | |
386 | 0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1, | |
387 | 0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb, | |
388 | 0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb, | |
389 | 0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5, | |
390 | 0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea, | |
391 | 0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
392 | 0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, | |
393 | 0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
394 | 0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, | |
395 | 0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2, | |
396 | 0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3, | |
397 | 0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3, | |
398 | 0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5, | |
399 | 0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5, | |
400 | 0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5, | |
401 | 0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3, | |
402 | 0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5, | |
403 | 0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5, | |
404 | 0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, | |
405 | 0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, | |
406 | 0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1, | |
407 | 0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2, | |
408 | 0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb, | |
409 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb, | |
410 | 0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb, | |
411 | 0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3, | |
412 | 0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5, | |
413 | 0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3, | |
414 | 0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a, | |
415 | 0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5, | |
416 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3, | |
417 | 0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3, | |
418 | 0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3, | |
419 | 0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2, | |
420 | 0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb, | |
421 | 0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02, | |
422 | 0x00,0x01,0x00,0x02 | |
423 | }; | |
424 | ||
425 | struct atmel_private { | |
426 | void *card; /* Bus dependent stucture varies for PCcard */ | |
427 | int (*present_callback)(void *); /* And callback which uses it */ | |
428 | char firmware_id[32]; | |
429 | AtmelFWType firmware_type; | |
430 | u8 *firmware; | |
431 | int firmware_length; | |
432 | struct timer_list management_timer; | |
433 | struct net_device *dev; | |
434 | struct device *sys_dev; | |
435 | struct iw_statistics wstats; | |
436 | struct net_device_stats stats; // device stats | |
437 | spinlock_t irqlock, timerlock; // spinlocks | |
438 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; | |
4d791aad CP |
439 | enum { |
440 | CARD_TYPE_PARALLEL_FLASH, | |
1da177e4 | 441 | CARD_TYPE_SPI_FLASH, |
4d791aad | 442 | CARD_TYPE_EEPROM |
1da177e4 LT |
443 | } card_type; |
444 | int do_rx_crc; /* If we need to CRC incoming packets */ | |
445 | int probe_crc; /* set if we don't yet know */ | |
446 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ | |
447 | u16 rx_desc_head; | |
448 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; | |
449 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; | |
4d791aad | 450 | |
1da177e4 | 451 | u16 frag_seq, frag_len, frag_no; |
4d791aad CP |
452 | u8 frag_source[6]; |
453 | ||
1da177e4 LT |
454 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
455 | u8 group_cipher_suite, pairwise_cipher_suite; | |
456 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
4d791aad | 457 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
1da177e4 LT |
458 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
459 | ||
460 | u16 host_info_base; | |
4d791aad | 461 | struct host_info_struct { |
1da177e4 LT |
462 | /* NB this is matched to the hardware, don't change. */ |
463 | u8 volatile int_status; | |
464 | u8 volatile int_mask; | |
465 | u8 volatile lockout_host; | |
466 | u8 volatile lockout_mac; | |
467 | ||
468 | u16 tx_buff_pos; | |
469 | u16 tx_buff_size; | |
470 | u16 tx_desc_pos; | |
471 | u16 tx_desc_count; | |
472 | ||
473 | u16 rx_buff_pos; | |
474 | u16 rx_buff_size; | |
475 | u16 rx_desc_pos; | |
476 | u16 rx_desc_count; | |
4d791aad | 477 | |
1da177e4 | 478 | u16 build_version; |
4d791aad CP |
479 | u16 command_pos; |
480 | ||
1da177e4 LT |
481 | u16 major_version; |
482 | u16 minor_version; | |
4d791aad | 483 | |
1da177e4 LT |
484 | u16 func_ctrl; |
485 | u16 mac_status; | |
486 | u16 generic_IRQ_type; | |
487 | u8 reserved[2]; | |
488 | } host_info; | |
489 | ||
4d791aad | 490 | enum { |
1da177e4 LT |
491 | STATION_STATE_SCANNING, |
492 | STATION_STATE_JOINNING, | |
493 | STATION_STATE_AUTHENTICATING, | |
494 | STATION_STATE_ASSOCIATING, | |
495 | STATION_STATE_READY, | |
496 | STATION_STATE_REASSOCIATING, | |
497 | STATION_STATE_DOWN, | |
498 | STATION_STATE_MGMT_ERROR | |
499 | } station_state; | |
4d791aad | 500 | |
1da177e4 LT |
501 | int operating_mode, power_mode; |
502 | time_t last_qual; | |
503 | int beacons_this_sec; | |
504 | int channel; | |
505 | int reg_domain, config_reg_domain; | |
506 | int tx_rate; | |
507 | int auto_tx_rate; | |
508 | int rts_threshold; | |
509 | int frag_threshold; | |
510 | int long_retry, short_retry; | |
511 | int preamble; | |
512 | int default_beacon_period, beacon_period, listen_interval; | |
4d791aad | 513 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
1da177e4 LT |
514 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
515 | enum { | |
516 | SITE_SURVEY_IDLE, | |
517 | SITE_SURVEY_IN_PROGRESS, | |
4d791aad | 518 | SITE_SURVEY_COMPLETED |
1da177e4 LT |
519 | } site_survey_state; |
520 | time_t last_survey; | |
521 | ||
522 | int station_was_associated, station_is_associated; | |
523 | int fast_scan; | |
4d791aad | 524 | |
1da177e4 LT |
525 | struct bss_info { |
526 | int channel; | |
527 | int SSIDsize; | |
528 | int RSSI; | |
529 | int UsingWEP; | |
530 | int preamble; | |
531 | int beacon_period; | |
532 | int BSStype; | |
533 | u8 BSSID[6]; | |
534 | u8 SSID[MAX_SSID_LENGTH]; | |
535 | } BSSinfo[MAX_BSS_ENTRIES]; | |
536 | int BSS_list_entries, current_BSS; | |
4d791aad | 537 | int connect_to_any_BSS; |
1da177e4 LT |
538 | int SSID_size, new_SSID_size; |
539 | u8 CurrentBSSID[6], BSSID[6]; | |
540 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; | |
541 | u64 last_beacon_timestamp; | |
542 | u8 rx_buf[MAX_WIRELESS_BODY]; | |
1da177e4 LT |
543 | }; |
544 | ||
545 | static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16}; | |
546 | ||
547 | static const struct { | |
548 | int reg_domain; | |
549 | int min, max; | |
4d791aad | 550 | char *name; |
1da177e4 LT |
551 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
552 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, | |
553 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, | |
554 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, | |
4d791aad | 555 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
1da177e4 LT |
556 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
557 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, | |
558 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; | |
559 | ||
560 | static void build_wpa_mib(struct atmel_private *priv); | |
561 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
4d791aad CP |
562 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
563 | unsigned char *src, u16 len); | |
564 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, | |
565 | u16 src, u16 len); | |
1da177e4 LT |
566 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
567 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); | |
568 | static int atmel_lock_mac(struct atmel_private *priv); | |
569 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); | |
570 | static void atmel_command_irq(struct atmel_private *priv); | |
571 | static int atmel_validate_channel(struct atmel_private *priv, int channel); | |
4d791aad CP |
572 | static void atmel_management_frame(struct atmel_private *priv, |
573 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
574 | u16 frame_len, u8 rssi); |
575 | static void atmel_management_timer(u_long a); | |
4d791aad CP |
576 | static void atmel_send_command(struct atmel_private *priv, int command, |
577 | void *cmd, int cmd_size); | |
578 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
579 | void *cmd, int cmd_size); | |
580 | static void atmel_transmit_management_frame(struct atmel_private *priv, | |
581 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
582 | u8 *body, int body_len); |
583 | ||
584 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); | |
4d791aad CP |
585 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
586 | u8 data); | |
587 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, | |
588 | u16 data); | |
589 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, | |
590 | u8 *data, int data_len); | |
591 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, | |
592 | u8 *data, int data_len); | |
1da177e4 LT |
593 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
594 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); | |
595 | static void atmel_smooth_qual(struct atmel_private *priv); | |
596 | static void atmel_writeAR(struct net_device *dev, u16 data); | |
597 | static int probe_atmel_card(struct net_device *dev); | |
598 | static int reset_atmel_card(struct net_device *dev ); | |
599 | static void atmel_enter_state(struct atmel_private *priv, int new_state); | |
600 | int atmel_open (struct net_device *dev); | |
601 | ||
602 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) | |
603 | { | |
604 | return priv->host_info_base + offset; | |
605 | } | |
606 | ||
607 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) | |
608 | { | |
609 | return priv->host_info.command_pos + offset; | |
610 | } | |
611 | ||
4d791aad | 612 | static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
613 | { |
614 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; | |
615 | } | |
616 | ||
4d791aad | 617 | static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
618 | { |
619 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; | |
620 | } | |
621 | ||
622 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) | |
623 | { | |
624 | return inb(dev->base_addr + offset); | |
625 | } | |
626 | ||
627 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) | |
628 | { | |
629 | outb(data, dev->base_addr + offset); | |
630 | } | |
631 | ||
632 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) | |
633 | { | |
634 | return inw(dev->base_addr + offset); | |
635 | } | |
636 | ||
637 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) | |
638 | { | |
639 | outw(data, dev->base_addr + offset); | |
640 | } | |
641 | ||
642 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) | |
643 | { | |
4d791aad | 644 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
645 | return atmel_read8(priv->dev, DR); |
646 | } | |
647 | ||
648 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) | |
649 | { | |
4d791aad | 650 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
651 | atmel_write8(priv->dev, DR, data); |
652 | } | |
653 | ||
654 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) | |
655 | { | |
4d791aad | 656 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
657 | return atmel_read16(priv->dev, DR); |
658 | } | |
659 | ||
660 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) | |
661 | { | |
4d791aad | 662 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
663 | atmel_write16(priv->dev, DR, data); |
664 | } | |
665 | ||
666 | static const struct iw_handler_def atmel_handler_def; | |
667 | ||
668 | static void tx_done_irq(struct atmel_private *priv) | |
669 | { | |
670 | int i; | |
671 | ||
4d791aad | 672 | for (i = 0; |
1da177e4 LT |
673 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
674 | i < priv->host_info.tx_desc_count; | |
675 | i++) { | |
1da177e4 LT |
676 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
677 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); | |
678 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); | |
679 | ||
680 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); | |
681 | ||
682 | priv->tx_free_mem += msdu_size; | |
683 | priv->tx_desc_free++; | |
684 | ||
685 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) | |
686 | priv->tx_buff_head = 0; | |
687 | else | |
688 | priv->tx_buff_head += msdu_size; | |
4d791aad | 689 | |
1da177e4 | 690 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
4d791aad | 691 | priv->tx_desc_head++ ; |
1da177e4 LT |
692 | else |
693 | priv->tx_desc_head = 0; | |
4d791aad | 694 | |
1da177e4 LT |
695 | if (type == TX_PACKET_TYPE_DATA) { |
696 | if (status == TX_STATUS_SUCCESS) | |
697 | priv->stats.tx_packets++; | |
4d791aad | 698 | else |
1da177e4 LT |
699 | priv->stats.tx_errors++; |
700 | netif_wake_queue(priv->dev); | |
701 | } | |
702 | } | |
703 | } | |
704 | ||
705 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) | |
706 | { | |
707 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; | |
708 | ||
4d791aad | 709 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
1da177e4 | 710 | return 0; |
4d791aad | 711 | |
1da177e4 LT |
712 | if (bottom_free >= len) |
713 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; | |
4d791aad | 714 | |
1da177e4 LT |
715 | if (priv->tx_free_mem - bottom_free >= len) { |
716 | priv->tx_buff_tail = 0; | |
717 | return priv->host_info.tx_buff_pos; | |
718 | } | |
4d791aad | 719 | |
1da177e4 LT |
720 | return 0; |
721 | } | |
722 | ||
4d791aad CP |
723 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
724 | u16 len, u16 buff, u8 type) | |
1da177e4 LT |
725 | { |
726 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); | |
727 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); | |
728 | if (!priv->use_wpa) | |
729 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); | |
730 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); | |
731 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); | |
732 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); | |
733 | if (priv->use_wpa) { | |
734 | int cipher_type, cipher_length; | |
735 | if (is_bcast) { | |
736 | cipher_type = priv->group_cipher_suite; | |
4d791aad CP |
737 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
738 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
739 | cipher_length = 8; |
740 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
741 | cipher_length = 12; | |
742 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || | |
743 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { | |
744 | cipher_type = priv->pairwise_cipher_suite; | |
745 | cipher_length = 8; | |
746 | } else { | |
747 | cipher_type = CIPHER_SUITE_NONE; | |
748 | cipher_length = 0; | |
749 | } | |
750 | } else { | |
751 | cipher_type = priv->pairwise_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->group_cipher_suite == CIPHER_SUITE_WEP_64 || | |
758 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { | |
759 | cipher_type = priv->group_cipher_suite; | |
760 | cipher_length = 8; | |
761 | } else { | |
762 | cipher_type = CIPHER_SUITE_NONE; | |
763 | cipher_length = 0; | |
764 | } | |
765 | } | |
4d791aad | 766 | |
1da177e4 | 767 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail), |
4d791aad | 768 | cipher_type); |
1da177e4 LT |
769 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
770 | cipher_length); | |
771 | } | |
772 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); | |
773 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); | |
774 | if (priv->tx_desc_previous != priv->tx_desc_tail) | |
775 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); | |
776 | priv->tx_desc_previous = priv->tx_desc_tail; | |
4d791aad | 777 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
1da177e4 LT |
778 | priv->tx_desc_tail++; |
779 | else | |
780 | priv->tx_desc_tail = 0; | |
781 | priv->tx_desc_free--; | |
782 | priv->tx_free_mem -= len; | |
1da177e4 LT |
783 | } |
784 | ||
4d791aad | 785 | static int start_tx(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 786 | { |
00a5ebf8 | 787 | static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
1da177e4 | 788 | struct atmel_private *priv = netdev_priv(dev); |
4ca5253d | 789 | struct ieee80211_hdr_4addr header; |
1da177e4 LT |
790 | unsigned long flags; |
791 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; | |
4d791aad CP |
792 | |
793 | if (priv->card && priv->present_callback && | |
1da177e4 LT |
794 | !(*priv->present_callback)(priv->card)) { |
795 | priv->stats.tx_errors++; | |
796 | dev_kfree_skb(skb); | |
797 | return 0; | |
798 | } | |
4d791aad | 799 | |
1da177e4 LT |
800 | if (priv->station_state != STATION_STATE_READY) { |
801 | priv->stats.tx_errors++; | |
802 | dev_kfree_skb(skb); | |
803 | return 0; | |
804 | } | |
4d791aad | 805 | |
1da177e4 | 806 | /* first ensure the timer func cannot run */ |
4d791aad | 807 | spin_lock_bh(&priv->timerlock); |
1da177e4 | 808 | /* then stop the hardware ISR */ |
4d791aad | 809 | spin_lock_irqsave(&priv->irqlock, flags); |
1da177e4 | 810 | /* nb doing the above in the opposite order will deadlock */ |
4d791aad | 811 | |
1da177e4 | 812 | /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the |
4d791aad CP |
813 | 12 first bytes (containing DA/SA) and put them in the appropriate |
814 | fields of the Wireless Header. Thus the packet length is then the | |
815 | initial + 18 (+30-12) */ | |
816 | ||
1da177e4 LT |
817 | if (!(buff = find_tx_buff(priv, len + 18))) { |
818 | priv->stats.tx_dropped++; | |
819 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
820 | spin_unlock_bh(&priv->timerlock); | |
821 | netif_stop_queue(dev); | |
822 | return 1; | |
823 | } | |
4d791aad | 824 | |
b453872c | 825 | frame_ctl = IEEE80211_FTYPE_DATA; |
1da177e4 LT |
826 | header.duration_id = 0; |
827 | header.seq_ctl = 0; | |
828 | if (priv->wep_is_on) | |
f13baae4 | 829 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
1da177e4 LT |
830 | if (priv->operating_mode == IW_MODE_ADHOC) { |
831 | memcpy(&header.addr1, skb->data, 6); | |
832 | memcpy(&header.addr2, dev->dev_addr, 6); | |
833 | memcpy(&header.addr3, priv->BSSID, 6); | |
834 | } else { | |
b453872c | 835 | frame_ctl |= IEEE80211_FCTL_TODS; |
1da177e4 LT |
836 | memcpy(&header.addr1, priv->CurrentBSSID, 6); |
837 | memcpy(&header.addr2, dev->dev_addr, 6); | |
838 | memcpy(&header.addr3, skb->data, 6); | |
839 | } | |
4d791aad | 840 | |
1da177e4 LT |
841 | if (priv->use_wpa) |
842 | memcpy(&header.addr4, SNAP_RFC1024, 6); | |
843 | ||
844 | header.frame_ctl = cpu_to_le16(frame_ctl); | |
845 | /* Copy the wireless header into the card */ | |
846 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); | |
847 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ | |
848 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); | |
849 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; | |
4d791aad | 850 | |
1da177e4 LT |
851 | /* low bit of first byte of destination tells us if broadcast */ |
852 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); | |
853 | dev->trans_start = jiffies; | |
854 | priv->stats.tx_bytes += len; | |
4d791aad | 855 | |
1da177e4 LT |
856 | spin_unlock_irqrestore(&priv->irqlock, flags); |
857 | spin_unlock_bh(&priv->timerlock); | |
858 | dev_kfree_skb(skb); | |
4d791aad CP |
859 | |
860 | return 0; | |
1da177e4 LT |
861 | } |
862 | ||
4d791aad | 863 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
4ca5253d | 864 | struct ieee80211_hdr_4addr *header, |
1da177e4 LT |
865 | u8 *body, int body_len) |
866 | { | |
867 | u16 buff; | |
4d791aad CP |
868 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
869 | ||
870 | if (!(buff = find_tx_buff(priv, len))) | |
1da177e4 LT |
871 | return; |
872 | ||
873 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); | |
874 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); | |
875 | priv->tx_buff_tail += len; | |
876 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); | |
877 | } | |
4d791aad CP |
878 | |
879 | static void fast_rx_path(struct atmel_private *priv, | |
880 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
881 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
882 | { | |
883 | /* fast path: unfragmented packet copy directly into skbuf */ | |
4d791aad CP |
884 | u8 mac4[6]; |
885 | struct sk_buff *skb; | |
1da177e4 | 886 | unsigned char *skbp; |
4d791aad | 887 | |
1da177e4 LT |
888 | /* get the final, mac 4 header field, this tells us encapsulation */ |
889 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); | |
890 | msdu_size -= 6; | |
4d791aad | 891 | |
1da177e4 LT |
892 | if (priv->do_rx_crc) { |
893 | crc = crc32_le(crc, mac4, 6); | |
894 | msdu_size -= 4; | |
895 | } | |
4d791aad | 896 | |
1da177e4 LT |
897 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
898 | priv->stats.rx_dropped++; | |
899 | return; | |
900 | } | |
901 | ||
902 | skb_reserve(skb, 2); | |
903 | skbp = skb_put(skb, msdu_size + 12); | |
904 | atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size); | |
4d791aad | 905 | |
1da177e4 LT |
906 | if (priv->do_rx_crc) { |
907 | u32 netcrc; | |
908 | crc = crc32_le(crc, skbp + 12, msdu_size); | |
909 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); | |
910 | if ((crc ^ 0xffffffff) != netcrc) { | |
911 | priv->stats.rx_crc_errors++; | |
912 | dev_kfree_skb(skb); | |
913 | return; | |
914 | } | |
915 | } | |
4d791aad | 916 | |
1da177e4 | 917 | memcpy(skbp, header->addr1, 6); /* destination address */ |
4d791aad | 918 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
919 | memcpy(&skbp[6], header->addr3, 6); |
920 | else | |
921 | memcpy(&skbp[6], header->addr2, 6); /* source address */ | |
4d791aad CP |
922 | |
923 | priv->dev->last_rx = jiffies; | |
1da177e4 LT |
924 | skb->dev = priv->dev; |
925 | skb->protocol = eth_type_trans(skb, priv->dev); | |
4d791aad | 926 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 LT |
927 | netif_rx(skb); |
928 | priv->stats.rx_bytes += 12 + msdu_size; | |
929 | priv->stats.rx_packets++; | |
930 | } | |
931 | ||
932 | /* Test to see if the packet in card memory at packet_loc has a valid CRC | |
4d791aad CP |
933 | It doesn't matter that this is slow: it is only used to proble the first few |
934 | packets. */ | |
1da177e4 LT |
935 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
936 | { | |
937 | int i = msdu_size - 4; | |
938 | u32 netcrc, crc = 0xffffffff; | |
939 | ||
940 | if (msdu_size < 4) | |
941 | return 0; | |
942 | ||
943 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); | |
4d791aad | 944 | |
1da177e4 LT |
945 | atmel_writeAR(priv->dev, packet_loc); |
946 | while (i--) { | |
947 | u8 octet = atmel_read8(priv->dev, DR); | |
948 | crc = crc32_le(crc, &octet, 1); | |
949 | } | |
950 | ||
951 | return (crc ^ 0xffffffff) == netcrc; | |
952 | } | |
953 | ||
4d791aad CP |
954 | static void frag_rx_path(struct atmel_private *priv, |
955 | struct ieee80211_hdr_4addr *header, | |
956 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, | |
957 | u8 frag_no, int more_frags) | |
1da177e4 | 958 | { |
4d791aad | 959 | u8 mac4[6]; |
1da177e4 LT |
960 | u8 source[6]; |
961 | struct sk_buff *skb; | |
962 | ||
4d791aad | 963 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
964 | memcpy(source, header->addr3, 6); |
965 | else | |
4d791aad CP |
966 | memcpy(source, header->addr2, 6); |
967 | ||
1da177e4 | 968 | rx_packet_loc += 24; /* skip header */ |
4d791aad | 969 | |
1da177e4 LT |
970 | if (priv->do_rx_crc) |
971 | msdu_size -= 4; | |
972 | ||
973 | if (frag_no == 0) { /* first fragment */ | |
974 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6); | |
975 | msdu_size -= 6; | |
976 | rx_packet_loc += 6; | |
977 | ||
4d791aad | 978 | if (priv->do_rx_crc) |
1da177e4 | 979 | crc = crc32_le(crc, mac4, 6); |
4d791aad | 980 | |
1da177e4 LT |
981 | priv->frag_seq = seq_no; |
982 | priv->frag_no = 1; | |
983 | priv->frag_len = msdu_size; | |
4d791aad | 984 | memcpy(priv->frag_source, source, 6); |
1da177e4 LT |
985 | memcpy(&priv->rx_buf[6], source, 6); |
986 | memcpy(priv->rx_buf, header->addr1, 6); | |
4d791aad | 987 | |
1da177e4 LT |
988 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
989 | ||
990 | if (priv->do_rx_crc) { | |
991 | u32 netcrc; | |
992 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); | |
993 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
994 | if ((crc ^ 0xffffffff) != netcrc) { | |
995 | priv->stats.rx_crc_errors++; | |
996 | memset(priv->frag_source, 0xff, 6); | |
997 | } | |
998 | } | |
4d791aad | 999 | |
1da177e4 LT |
1000 | } else if (priv->frag_no == frag_no && |
1001 | priv->frag_seq == seq_no && | |
1002 | memcmp(priv->frag_source, source, 6) == 0) { | |
4d791aad CP |
1003 | |
1004 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1005 | rx_packet_loc, msdu_size); |
1006 | if (priv->do_rx_crc) { | |
1007 | u32 netcrc; | |
4d791aad CP |
1008 | crc = crc32_le(crc, |
1009 | &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1010 | msdu_size); |
1011 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1012 | if ((crc ^ 0xffffffff) != netcrc) { | |
1013 | priv->stats.rx_crc_errors++; | |
1014 | memset(priv->frag_source, 0xff, 6); | |
1015 | more_frags = 1; /* don't send broken assembly */ | |
1016 | } | |
1017 | } | |
4d791aad | 1018 | |
1da177e4 LT |
1019 | priv->frag_len += msdu_size; |
1020 | priv->frag_no++; | |
1021 | ||
1022 | if (!more_frags) { /* last one */ | |
1023 | memset(priv->frag_source, 0xff, 6); | |
1024 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { | |
1025 | priv->stats.rx_dropped++; | |
1026 | } else { | |
1027 | skb_reserve(skb, 2); | |
4d791aad | 1028 | memcpy(skb_put(skb, priv->frag_len + 12), |
1da177e4 LT |
1029 | priv->rx_buf, |
1030 | priv->frag_len + 12); | |
1031 | priv->dev->last_rx = jiffies; | |
1032 | skb->dev = priv->dev; | |
1033 | skb->protocol = eth_type_trans(skb, priv->dev); | |
4d791aad | 1034 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 LT |
1035 | netif_rx(skb); |
1036 | priv->stats.rx_bytes += priv->frag_len + 12; | |
1037 | priv->stats.rx_packets++; | |
1038 | } | |
1039 | } | |
1da177e4 LT |
1040 | } else |
1041 | priv->wstats.discard.fragment++; | |
1042 | } | |
4d791aad | 1043 | |
1da177e4 LT |
1044 | static void rx_done_irq(struct atmel_private *priv) |
1045 | { | |
1046 | int i; | |
4ca5253d | 1047 | struct ieee80211_hdr_4addr header; |
4d791aad CP |
1048 | |
1049 | for (i = 0; | |
1da177e4 LT |
1050 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
1051 | i < priv->host_info.rx_desc_count; | |
1052 | i++) { | |
4d791aad | 1053 | |
1da177e4 LT |
1054 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
1055 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); | |
1056 | u32 crc = 0xffffffff; | |
4d791aad | 1057 | |
1da177e4 LT |
1058 | if (status != RX_STATUS_SUCCESS) { |
1059 | if (status == 0xc1) /* determined by experiment */ | |
1060 | priv->wstats.discard.nwid++; | |
1061 | else | |
4d791aad | 1062 | priv->stats.rx_errors++; |
1da177e4 LT |
1063 | goto next; |
1064 | } | |
1065 | ||
1066 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); | |
1067 | rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head)); | |
4d791aad | 1068 | |
1da177e4 | 1069 | if (msdu_size < 30) { |
4d791aad | 1070 | priv->stats.rx_errors++; |
1da177e4 LT |
1071 | goto next; |
1072 | } | |
4d791aad | 1073 | |
1da177e4 LT |
1074 | /* Get header as far as end of seq_ctl */ |
1075 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); | |
1076 | frame_ctl = le16_to_cpu(header.frame_ctl); | |
1077 | seq_control = le16_to_cpu(header.seq_ctl); | |
1078 | ||
4d791aad CP |
1079 | /* probe for CRC use here if needed once five packets have |
1080 | arrived with the same crc status, we assume we know what's | |
1081 | happening and stop probing */ | |
1da177e4 | 1082 | if (priv->probe_crc) { |
f13baae4 | 1083 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
1da177e4 LT |
1084 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
1085 | } else { | |
1086 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); | |
1087 | } | |
1088 | if (priv->do_rx_crc) { | |
1089 | if (priv->crc_ok_cnt++ > 5) | |
1090 | priv->probe_crc = 0; | |
1091 | } else { | |
1092 | if (priv->crc_ko_cnt++ > 5) | |
1093 | priv->probe_crc = 0; | |
1094 | } | |
1095 | } | |
4d791aad | 1096 | |
1da177e4 | 1097 | /* don't CRC header when WEP in use */ |
f13baae4 | 1098 | if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) { |
1da177e4 LT |
1099 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
1100 | } | |
1101 | msdu_size -= 24; /* header */ | |
1102 | ||
4d791aad | 1103 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
b453872c JG |
1104 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
1105 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; | |
1106 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; | |
4d791aad CP |
1107 | |
1108 | if (!more_fragments && packet_fragment_no == 0) { | |
1da177e4 LT |
1109 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
1110 | } else { | |
1111 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, | |
1112 | packet_sequence_no, packet_fragment_no, more_fragments); | |
1113 | } | |
1114 | } | |
4d791aad | 1115 | |
b453872c | 1116 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
1da177e4 LT |
1117 | /* copy rest of packet into buffer */ |
1118 | atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); | |
4d791aad | 1119 | |
1da177e4 LT |
1120 | /* we use the same buffer for frag reassembly and control packets */ |
1121 | memset(priv->frag_source, 0xff, 6); | |
4d791aad | 1122 | |
1da177e4 LT |
1123 | if (priv->do_rx_crc) { |
1124 | /* last 4 octets is crc */ | |
1125 | msdu_size -= 4; | |
1126 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); | |
1127 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { | |
1128 | priv->stats.rx_crc_errors++; | |
1129 | goto next; | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | atmel_management_frame(priv, &header, msdu_size, | |
1134 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head))); | |
4d791aad | 1135 | } |
1da177e4 | 1136 | |
4d791aad | 1137 | next: |
1da177e4 | 1138 | /* release descriptor */ |
4d791aad CP |
1139 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
1140 | ||
1da177e4 | 1141 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
4d791aad | 1142 | priv->rx_desc_head++; |
1da177e4 LT |
1143 | else |
1144 | priv->rx_desc_head = 0; | |
1145 | } | |
4d791aad | 1146 | } |
1da177e4 | 1147 | |
7d12e780 | 1148 | static irqreturn_t service_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1149 | { |
1150 | struct net_device *dev = (struct net_device *) dev_id; | |
1151 | struct atmel_private *priv = netdev_priv(dev); | |
1152 | u8 isr; | |
1153 | int i = -1; | |
4d791aad | 1154 | static u8 irq_order[] = { |
1da177e4 LT |
1155 | ISR_OUT_OF_RANGE, |
1156 | ISR_RxCOMPLETE, | |
1157 | ISR_TxCOMPLETE, | |
1158 | ISR_RxFRAMELOST, | |
1159 | ISR_FATAL_ERROR, | |
1160 | ISR_COMMAND_COMPLETE, | |
1161 | ISR_IBSS_MERGE, | |
1162 | ISR_GENERIC_IRQ | |
1163 | }; | |
1da177e4 | 1164 | |
4d791aad | 1165 | if (priv->card && priv->present_callback && |
1da177e4 LT |
1166 | !(*priv->present_callback)(priv->card)) |
1167 | return IRQ_HANDLED; | |
1168 | ||
1169 | /* In this state upper-level code assumes it can mess with | |
1170 | the card unhampered by interrupts which may change register state. | |
1171 | Note that even though the card shouldn't generate interrupts | |
4d791aad | 1172 | the inturrupt line may be shared. This allows card setup |
1da177e4 LT |
1173 | to go on without disabling interrupts for a long time. */ |
1174 | if (priv->station_state == STATION_STATE_DOWN) | |
1175 | return IRQ_NONE; | |
4d791aad | 1176 | |
1da177e4 LT |
1177 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
1178 | ||
1179 | while (1) { | |
1180 | if (!atmel_lock_mac(priv)) { | |
1181 | /* failed to contact card */ | |
1182 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1183 | return IRQ_HANDLED; | |
1184 | } | |
4d791aad | 1185 | |
1da177e4 LT |
1186 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1187 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1188 | |
1da177e4 LT |
1189 | if (!isr) { |
1190 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ | |
1191 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; | |
1192 | } | |
4d791aad | 1193 | |
1da177e4 | 1194 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
4d791aad | 1195 | |
b4341135 | 1196 | for (i = 0; i < ARRAY_SIZE(irq_order); i++) |
1da177e4 LT |
1197 | if (isr & irq_order[i]) |
1198 | break; | |
4d791aad | 1199 | |
1da177e4 LT |
1200 | if (!atmel_lock_mac(priv)) { |
1201 | /* failed to contact card */ | |
1202 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1203 | return IRQ_HANDLED; | |
1204 | } | |
4d791aad | 1205 | |
1da177e4 LT |
1206 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1207 | isr ^= irq_order[i]; | |
1208 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); | |
1209 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1210 | |
1da177e4 | 1211 | switch (irq_order[i]) { |
4d791aad CP |
1212 | |
1213 | case ISR_OUT_OF_RANGE: | |
1214 | if (priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
1215 | priv->station_state == STATION_STATE_READY) { |
1216 | priv->station_is_associated = 0; | |
1217 | atmel_scan(priv, 1); | |
1218 | } | |
1219 | break; | |
1220 | ||
1221 | case ISR_RxFRAMELOST: | |
1222 | priv->wstats.discard.misc++; | |
1223 | /* fall through */ | |
1224 | case ISR_RxCOMPLETE: | |
4d791aad | 1225 | rx_done_irq(priv); |
1da177e4 | 1226 | break; |
4d791aad | 1227 | |
1da177e4 | 1228 | case ISR_TxCOMPLETE: |
4d791aad | 1229 | tx_done_irq(priv); |
1da177e4 | 1230 | break; |
4d791aad | 1231 | |
1da177e4 LT |
1232 | case ISR_FATAL_ERROR: |
1233 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); | |
1234 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
1235 | break; | |
4d791aad CP |
1236 | |
1237 | case ISR_COMMAND_COMPLETE: | |
1da177e4 LT |
1238 | atmel_command_irq(priv); |
1239 | break; | |
1240 | ||
1241 | case ISR_IBSS_MERGE: | |
4d791aad | 1242 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
1da177e4 LT |
1243 | priv->CurrentBSSID, 6); |
1244 | /* The WPA stuff cares about the current AP address */ | |
1245 | if (priv->use_wpa) | |
1246 | build_wpa_mib(priv); | |
1247 | break; | |
1248 | case ISR_GENERIC_IRQ: | |
1249 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); | |
1250 | break; | |
1251 | } | |
4d791aad | 1252 | } |
1da177e4 LT |
1253 | } |
1254 | ||
4d791aad | 1255 | static struct net_device_stats *atmel_get_stats(struct net_device *dev) |
1da177e4 LT |
1256 | { |
1257 | struct atmel_private *priv = netdev_priv(dev); | |
1258 | return &priv->stats; | |
1259 | } | |
1260 | ||
4d791aad | 1261 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
1da177e4 LT |
1262 | { |
1263 | struct atmel_private *priv = netdev_priv(dev); | |
1264 | ||
4d791aad | 1265 | /* update the link quality here in case we are seeing no beacons |
1da177e4 LT |
1266 | at all to drive the process */ |
1267 | atmel_smooth_qual(priv); | |
4d791aad | 1268 | |
1da177e4 LT |
1269 | priv->wstats.status = priv->station_state; |
1270 | ||
1271 | if (priv->operating_mode == IW_MODE_INFRA) { | |
1272 | if (priv->station_state != STATION_STATE_READY) { | |
1273 | priv->wstats.qual.qual = 0; | |
1274 | priv->wstats.qual.level = 0; | |
1275 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID | |
1276 | | IW_QUAL_LEVEL_INVALID); | |
1277 | } | |
1278 | priv->wstats.qual.noise = 0; | |
1279 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; | |
1280 | } else { | |
1281 | /* Quality levels cannot be determined in ad-hoc mode, | |
1282 | because we can 'hear' more that one remote station. */ | |
1283 | priv->wstats.qual.qual = 0; | |
1284 | priv->wstats.qual.level = 0; | |
1285 | priv->wstats.qual.noise = 0; | |
1286 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID | |
1287 | | IW_QUAL_LEVEL_INVALID | |
1288 | | IW_QUAL_NOISE_INVALID; | |
1289 | priv->wstats.miss.beacon = 0; | |
1290 | } | |
4d791aad CP |
1291 | |
1292 | return &priv->wstats; | |
1da177e4 LT |
1293 | } |
1294 | ||
1295 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) | |
1296 | { | |
1297 | if ((new_mtu < 68) || (new_mtu > 2312)) | |
1298 | return -EINVAL; | |
1299 | dev->mtu = new_mtu; | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | static int atmel_set_mac_address(struct net_device *dev, void *p) | |
1304 | { | |
1305 | struct sockaddr *addr = p; | |
4d791aad | 1306 | |
1da177e4 LT |
1307 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
1308 | return atmel_open(dev); | |
1309 | } | |
1310 | ||
1311 | EXPORT_SYMBOL(atmel_open); | |
1312 | ||
4d791aad | 1313 | int atmel_open(struct net_device *dev) |
1da177e4 LT |
1314 | { |
1315 | struct atmel_private *priv = netdev_priv(dev); | |
1316 | int i, channel; | |
1317 | ||
1318 | /* any scheduled timer is no longer needed and might screw things up.. */ | |
1319 | del_timer_sync(&priv->management_timer); | |
4d791aad | 1320 | |
1da177e4 LT |
1321 | /* Interrupts will not touch the card once in this state... */ |
1322 | priv->station_state = STATION_STATE_DOWN; | |
1323 | ||
1324 | if (priv->new_SSID_size) { | |
1325 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); | |
1326 | priv->SSID_size = priv->new_SSID_size; | |
1327 | priv->new_SSID_size = 0; | |
1328 | } | |
1329 | priv->BSS_list_entries = 0; | |
1330 | ||
1331 | priv->AuthenticationRequestRetryCnt = 0; | |
1332 | priv->AssociationRequestRetryCnt = 0; | |
1333 | priv->ReAssociationRequestRetryCnt = 0; | |
1334 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
1335 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; | |
1336 | ||
1337 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
1338 | priv->station_is_associated = 0; | |
1339 | ||
4d791aad | 1340 | if (!reset_atmel_card(dev)) |
1da177e4 LT |
1341 | return -EAGAIN; |
1342 | ||
1343 | if (priv->config_reg_domain) { | |
1344 | priv->reg_domain = priv->config_reg_domain; | |
1345 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); | |
1346 | } else { | |
1347 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); | |
b4341135 | 1348 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1349 | if (priv->reg_domain == channel_table[i].reg_domain) |
1350 | break; | |
b4341135 | 1351 | if (i == ARRAY_SIZE(channel_table)) { |
1da177e4 LT |
1352 | priv->reg_domain = REG_DOMAIN_MKK1; |
1353 | printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name); | |
4d791aad | 1354 | } |
1da177e4 | 1355 | } |
4d791aad | 1356 | |
1da177e4 LT |
1357 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
1358 | priv->channel = channel; | |
1359 | ||
4d791aad CP |
1360 | /* this moves station_state on.... */ |
1361 | atmel_scan(priv, 1); | |
1da177e4 LT |
1362 | |
1363 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ | |
1364 | return 0; | |
1365 | } | |
1366 | ||
4d791aad | 1367 | static int atmel_close(struct net_device *dev) |
1da177e4 LT |
1368 | { |
1369 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1370 | |
9a6301c1 DW |
1371 | /* Send event to userspace that we are disassociating */ |
1372 | if (priv->station_state == STATION_STATE_READY) { | |
1373 | union iwreq_data wrqu; | |
1374 | ||
1375 | wrqu.data.length = 0; | |
1376 | wrqu.data.flags = 0; | |
1377 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1378 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
1379 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1380 | } | |
1381 | ||
1da177e4 | 1382 | atmel_enter_state(priv, STATION_STATE_DOWN); |
4d791aad CP |
1383 | |
1384 | if (priv->bus_type == BUS_TYPE_PCCARD) | |
1da177e4 LT |
1385 | atmel_write16(dev, GCR, 0x0060); |
1386 | atmel_write16(dev, GCR, 0x0040); | |
1387 | return 0; | |
1388 | } | |
1389 | ||
1390 | static int atmel_validate_channel(struct atmel_private *priv, int channel) | |
1391 | { | |
1392 | /* check that channel is OK, if so return zero, | |
1393 | else return suitable default channel */ | |
1394 | int i; | |
1395 | ||
b4341135 | 1396 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1397 | if (priv->reg_domain == channel_table[i].reg_domain) { |
1398 | if (channel >= channel_table[i].min && | |
1399 | channel <= channel_table[i].max) | |
1400 | return 0; | |
1401 | else | |
1402 | return channel_table[i].min; | |
1403 | } | |
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | static int atmel_proc_output (char *buf, struct atmel_private *priv) | |
1408 | { | |
1409 | int i; | |
1410 | char *p = buf; | |
1411 | char *s, *r, *c; | |
4d791aad CP |
1412 | |
1413 | p += sprintf(p, "Driver version:\t\t%d.%d\n", | |
1414 | DRIVER_MAJOR, DRIVER_MINOR); | |
1415 | ||
1da177e4 | 1416 | if (priv->station_state != STATION_STATE_DOWN) { |
4d791aad CP |
1417 | p += sprintf(p, "Firmware version:\t%d.%d build %d\n" |
1418 | "Firmware location:\t", | |
1da177e4 LT |
1419 | priv->host_info.major_version, |
1420 | priv->host_info.minor_version, | |
1421 | priv->host_info.build_version); | |
4d791aad CP |
1422 | |
1423 | if (priv->card_type != CARD_TYPE_EEPROM) | |
1da177e4 | 1424 | p += sprintf(p, "on card\n"); |
4d791aad CP |
1425 | else if (priv->firmware) |
1426 | p += sprintf(p, "%s loaded by host\n", | |
1427 | priv->firmware_id); | |
1da177e4 | 1428 | else |
4d791aad CP |
1429 | p += sprintf(p, "%s loaded by hotplug\n", |
1430 | priv->firmware_id); | |
1431 | ||
1432 | switch (priv->card_type) { | |
1da177e4 LT |
1433 | case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break; |
1434 | case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break; | |
1435 | case CARD_TYPE_EEPROM: c = "EEPROM"; break; | |
1436 | default: c = "<unknown>"; | |
1437 | } | |
1438 | ||
1da177e4 | 1439 | r = "<unknown>"; |
b4341135 | 1440 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1441 | if (priv->reg_domain == channel_table[i].reg_domain) |
1442 | r = channel_table[i].name; | |
4d791aad | 1443 | |
1da177e4 LT |
1444 | p += sprintf(p, "MAC memory type:\t%s\n", c); |
1445 | p += sprintf(p, "Regulatory domain:\t%s\n", r); | |
4d791aad | 1446 | p += sprintf(p, "Host CRC checking:\t%s\n", |
1da177e4 LT |
1447 | priv->do_rx_crc ? "On" : "Off"); |
1448 | p += sprintf(p, "WPA-capable firmware:\t%s\n", | |
1449 | priv->use_wpa ? "Yes" : "No"); | |
1450 | } | |
4d791aad | 1451 | |
1da177e4 LT |
1452 | switch(priv->station_state) { |
1453 | case STATION_STATE_SCANNING: s = "Scanning"; break; | |
1454 | case STATION_STATE_JOINNING: s = "Joining"; break; | |
1455 | case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break; | |
1456 | case STATION_STATE_ASSOCIATING: s = "Associating"; break; | |
1457 | case STATION_STATE_READY: s = "Ready"; break; | |
1458 | case STATION_STATE_REASSOCIATING: s = "Reassociating"; break; | |
1459 | case STATION_STATE_MGMT_ERROR: s = "Management error"; break; | |
1460 | case STATION_STATE_DOWN: s = "Down"; break; | |
1461 | default: s = "<unknown>"; | |
1462 | } | |
4d791aad | 1463 | |
1da177e4 | 1464 | p += sprintf(p, "Current state:\t\t%s\n", s); |
4d791aad | 1465 | return p - buf; |
1da177e4 LT |
1466 | } |
1467 | ||
1468 | static int atmel_read_proc(char *page, char **start, off_t off, | |
1469 | int count, int *eof, void *data) | |
1470 | { | |
1471 | struct atmel_private *priv = data; | |
1472 | int len = atmel_proc_output (page, priv); | |
1473 | if (len <= off+count) *eof = 1; | |
1474 | *start = page + off; | |
1475 | len -= off; | |
1476 | if (len>count) len = count; | |
1477 | if (len<0) len = 0; | |
1478 | return len; | |
1479 | } | |
1480 | ||
4d791aad CP |
1481 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
1482 | const AtmelFWType fw_type, | |
1483 | struct device *sys_dev, | |
1484 | int (*card_present)(void *), void *card) | |
1da177e4 | 1485 | { |
5bc4c36d | 1486 | struct proc_dir_entry *ent; |
1da177e4 LT |
1487 | struct net_device *dev; |
1488 | struct atmel_private *priv; | |
1489 | int rc; | |
1490 | ||
1491 | /* Create the network device object. */ | |
1492 | dev = alloc_etherdev(sizeof(*priv)); | |
1493 | if (!dev) { | |
4d791aad | 1494 | printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n"); |
1da177e4 LT |
1495 | return NULL; |
1496 | } | |
1497 | if (dev_alloc_name(dev, dev->name) < 0) { | |
4d791aad | 1498 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
1da177e4 LT |
1499 | goto err_out_free; |
1500 | } | |
1501 | ||
1502 | priv = netdev_priv(dev); | |
1503 | priv->dev = dev; | |
1504 | priv->sys_dev = sys_dev; | |
1505 | priv->present_callback = card_present; | |
1506 | priv->card = card; | |
1507 | priv->firmware = NULL; | |
1508 | priv->firmware_id[0] = '\0'; | |
1509 | priv->firmware_type = fw_type; | |
1510 | if (firmware) /* module parameter */ | |
1511 | strcpy(priv->firmware_id, firmware); | |
1512 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; | |
1513 | priv->station_state = STATION_STATE_DOWN; | |
1514 | priv->do_rx_crc = 0; | |
1515 | /* For PCMCIA cards, some chips need CRC, some don't | |
1516 | so we have to probe. */ | |
1517 | if (priv->bus_type == BUS_TYPE_PCCARD) { | |
1518 | priv->probe_crc = 1; | |
1519 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; | |
1520 | } else | |
1521 | priv->probe_crc = 0; | |
1522 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
1523 | memset(&priv->wstats, 0, sizeof(priv->wstats)); | |
1524 | priv->last_qual = jiffies; | |
1525 | priv->last_beacon_timestamp = 0; | |
1526 | memset(priv->frag_source, 0xff, sizeof(priv->frag_source)); | |
1527 | memset(priv->BSSID, 0, 6); | |
1528 | priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */ | |
1529 | priv->station_was_associated = 0; | |
4d791aad | 1530 | |
1da177e4 LT |
1531 | priv->last_survey = jiffies; |
1532 | priv->preamble = LONG_PREAMBLE; | |
1533 | priv->operating_mode = IW_MODE_INFRA; | |
1534 | priv->connect_to_any_BSS = 0; | |
1535 | priv->config_reg_domain = 0; | |
1536 | priv->reg_domain = 0; | |
1537 | priv->tx_rate = 3; | |
1538 | priv->auto_tx_rate = 1; | |
1539 | priv->channel = 4; | |
1540 | priv->power_mode = 0; | |
1541 | priv->SSID[0] = '\0'; | |
1542 | priv->SSID_size = 0; | |
1543 | priv->new_SSID_size = 0; | |
1544 | priv->frag_threshold = 2346; | |
1545 | priv->rts_threshold = 2347; | |
1546 | priv->short_retry = 7; | |
1547 | priv->long_retry = 4; | |
1548 | ||
1549 | priv->wep_is_on = 0; | |
1550 | priv->default_key = 0; | |
1551 | priv->encryption_level = 0; | |
1552 | priv->exclude_unencrypted = 0; | |
1553 | priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1554 | priv->use_wpa = 0; | |
1555 | memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); | |
1556 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); | |
1557 | ||
1558 | priv->default_beacon_period = priv->beacon_period = 100; | |
1559 | priv->listen_interval = 1; | |
1560 | ||
1561 | init_timer(&priv->management_timer); | |
1562 | spin_lock_init(&priv->irqlock); | |
1563 | spin_lock_init(&priv->timerlock); | |
1564 | priv->management_timer.function = atmel_management_timer; | |
1565 | priv->management_timer.data = (unsigned long) dev; | |
4d791aad | 1566 | |
1da177e4 LT |
1567 | dev->open = atmel_open; |
1568 | dev->stop = atmel_close; | |
1569 | dev->change_mtu = atmel_change_mtu; | |
1570 | dev->set_mac_address = atmel_set_mac_address; | |
1571 | dev->hard_start_xmit = start_tx; | |
1572 | dev->get_stats = atmel_get_stats; | |
1da177e4 LT |
1573 | dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def; |
1574 | dev->do_ioctl = atmel_ioctl; | |
1575 | dev->irq = irq; | |
1576 | dev->base_addr = port; | |
4d791aad | 1577 | |
1da177e4 | 1578 | SET_NETDEV_DEV(dev, sys_dev); |
4d791aad | 1579 | |
1fb9df5d | 1580 | if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { |
4d791aad | 1581 | printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc); |
1da177e4 LT |
1582 | goto err_out_free; |
1583 | } | |
1584 | ||
4d791aad | 1585 | if (!request_region(dev->base_addr, 32, |
b16a228d | 1586 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
1da177e4 LT |
1587 | goto err_out_irq; |
1588 | } | |
4d791aad | 1589 | |
1da177e4 LT |
1590 | if (register_netdev(dev)) |
1591 | goto err_out_res; | |
4d791aad | 1592 | |
1da177e4 LT |
1593 | if (!probe_atmel_card(dev)){ |
1594 | unregister_netdev(dev); | |
1595 | goto err_out_res; | |
1596 | } | |
4d791aad | 1597 | |
1da177e4 | 1598 | netif_carrier_off(dev); |
4d791aad | 1599 | |
5bc4c36d CL |
1600 | ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); |
1601 | if (!ent) | |
1602 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); | |
4d791aad | 1603 | |
b16a228d SK |
1604 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", |
1605 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, | |
1606 | dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], | |
1607 | dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5] ); | |
4d791aad | 1608 | |
1da177e4 LT |
1609 | SET_MODULE_OWNER(dev); |
1610 | return dev; | |
4d791aad CP |
1611 | |
1612 | err_out_res: | |
b16a228d | 1613 | release_region( dev->base_addr, 32); |
4d791aad | 1614 | err_out_irq: |
1da177e4 | 1615 | free_irq(dev->irq, dev); |
4d791aad | 1616 | err_out_free: |
1da177e4 LT |
1617 | free_netdev(dev); |
1618 | return NULL; | |
1619 | } | |
1620 | ||
1621 | EXPORT_SYMBOL(init_atmel_card); | |
1622 | ||
b16a228d | 1623 | void stop_atmel_card(struct net_device *dev) |
1da177e4 LT |
1624 | { |
1625 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1626 | |
1da177e4 | 1627 | /* put a brick on it... */ |
4d791aad | 1628 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
1629 | atmel_write16(dev, GCR, 0x0060); |
1630 | atmel_write16(dev, GCR, 0x0040); | |
4d791aad | 1631 | |
1da177e4 LT |
1632 | del_timer_sync(&priv->management_timer); |
1633 | unregister_netdev(dev); | |
1634 | remove_proc_entry("driver/atmel", NULL); | |
1635 | free_irq(dev->irq, dev); | |
b4558ea9 | 1636 | kfree(priv->firmware); |
b16a228d | 1637 | release_region(dev->base_addr, 32); |
1da177e4 LT |
1638 | free_netdev(dev); |
1639 | } | |
1640 | ||
1641 | EXPORT_SYMBOL(stop_atmel_card); | |
1642 | ||
1643 | static int atmel_set_essid(struct net_device *dev, | |
1644 | struct iw_request_info *info, | |
1645 | struct iw_point *dwrq, | |
1646 | char *extra) | |
1647 | { | |
1648 | struct atmel_private *priv = netdev_priv(dev); | |
1649 | ||
1650 | /* Check if we asked for `any' */ | |
1651 | if(dwrq->flags == 0) { | |
1652 | priv->connect_to_any_BSS = 1; | |
1653 | } else { | |
1654 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1655 | ||
1656 | priv->connect_to_any_BSS = 0; | |
4d791aad | 1657 | |
1da177e4 | 1658 | /* Check the size of the string */ |
6a484db4 | 1659 | if (dwrq->length > MAX_SSID_LENGTH) |
4d791aad | 1660 | return -E2BIG; |
1da177e4 LT |
1661 | if (index != 0) |
1662 | return -EINVAL; | |
4d791aad | 1663 | |
6a484db4 JT |
1664 | memcpy(priv->new_SSID, extra, dwrq->length); |
1665 | priv->new_SSID_size = dwrq->length; | |
1da177e4 LT |
1666 | } |
1667 | ||
1668 | return -EINPROGRESS; | |
1669 | } | |
1670 | ||
1671 | static int atmel_get_essid(struct net_device *dev, | |
1672 | struct iw_request_info *info, | |
1673 | struct iw_point *dwrq, | |
1674 | char *extra) | |
1675 | { | |
1676 | struct atmel_private *priv = netdev_priv(dev); | |
1677 | ||
1678 | /* Get the current SSID */ | |
1679 | if (priv->new_SSID_size != 0) { | |
1680 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); | |
d6a13a24 | 1681 | dwrq->length = priv->new_SSID_size; |
1da177e4 LT |
1682 | } else { |
1683 | memcpy(extra, priv->SSID, priv->SSID_size); | |
d6a13a24 | 1684 | dwrq->length = priv->SSID_size; |
1da177e4 | 1685 | } |
4d791aad | 1686 | |
1da177e4 LT |
1687 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
1688 | ||
1689 | return 0; | |
1690 | } | |
1691 | ||
1692 | static int atmel_get_wap(struct net_device *dev, | |
1693 | struct iw_request_info *info, | |
1694 | struct sockaddr *awrq, | |
1695 | char *extra) | |
1696 | { | |
1697 | struct atmel_private *priv = netdev_priv(dev); | |
1698 | memcpy(awrq->sa_data, priv->CurrentBSSID, 6); | |
1699 | awrq->sa_family = ARPHRD_ETHER; | |
1700 | ||
1701 | return 0; | |
1702 | } | |
1703 | ||
1704 | static int atmel_set_encode(struct net_device *dev, | |
1705 | struct iw_request_info *info, | |
1706 | struct iw_point *dwrq, | |
1707 | char *extra) | |
1708 | { | |
1709 | struct atmel_private *priv = netdev_priv(dev); | |
1710 | ||
1711 | /* Basic checking: do we have a key to set ? | |
1712 | * Note : with the new API, it's impossible to get a NULL pointer. | |
1713 | * Therefore, we need to check a key size == 0 instead. | |
1714 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag | |
1715 | * when no key is present (only change flags), but older versions | |
1716 | * don't do it. - Jean II */ | |
1717 | if (dwrq->length > 0) { | |
1718 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1719 | int current_index = priv->default_key; | |
1720 | /* Check the size of the key */ | |
1721 | if (dwrq->length > 13) { | |
1722 | return -EINVAL; | |
1723 | } | |
1724 | /* Check the index (none -> use current) */ | |
1725 | if (index < 0 || index >= 4) | |
1726 | index = current_index; | |
1727 | else | |
1728 | priv->default_key = index; | |
1729 | /* Set the length */ | |
1730 | if (dwrq->length > 5) | |
1731 | priv->wep_key_len[index] = 13; | |
1732 | else | |
1733 | if (dwrq->length > 0) | |
1734 | priv->wep_key_len[index] = 5; | |
1735 | else | |
1736 | /* Disable the key */ | |
1737 | priv->wep_key_len[index] = 0; | |
1738 | /* Check if the key is not marked as invalid */ | |
1739 | if(!(dwrq->flags & IW_ENCODE_NOKEY)) { | |
1740 | /* Cleanup */ | |
1741 | memset(priv->wep_keys[index], 0, 13); | |
1742 | /* Copy the key in the driver */ | |
1743 | memcpy(priv->wep_keys[index], extra, dwrq->length); | |
1744 | } | |
1745 | /* WE specify that if a valid key is set, encryption | |
1746 | * should be enabled (user may turn it off later) | |
1747 | * This is also how "iwconfig ethX key on" works */ | |
4d791aad | 1748 | if (index == current_index && |
1da177e4 LT |
1749 | priv->wep_key_len[index] > 0) { |
1750 | priv->wep_is_on = 1; | |
1751 | priv->exclude_unencrypted = 1; | |
1752 | if (priv->wep_key_len[index] > 5) { | |
9a6301c1 | 1753 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
1da177e4 LT |
1754 | priv->encryption_level = 2; |
1755 | } else { | |
9a6301c1 | 1756 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
1da177e4 LT |
1757 | priv->encryption_level = 1; |
1758 | } | |
1759 | } | |
1760 | } else { | |
1761 | /* Do we want to just set the transmit key index ? */ | |
1762 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1763 | if (index >= 0 && index < 4) { |
1da177e4 LT |
1764 | priv->default_key = index; |
1765 | } else | |
1766 | /* Don't complain if only change the mode */ | |
4d791aad | 1767 | if (!dwrq->flags & IW_ENCODE_MODE) { |
1da177e4 LT |
1768 | return -EINVAL; |
1769 | } | |
1770 | } | |
1771 | /* Read the flags */ | |
4d791aad | 1772 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
1da177e4 | 1773 | priv->wep_is_on = 0; |
4d791aad | 1774 | priv->encryption_level = 0; |
1da177e4 LT |
1775 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
1776 | } else { | |
1777 | priv->wep_is_on = 1; | |
1778 | if (priv->wep_key_len[priv->default_key] > 5) { | |
1779 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1780 | priv->encryption_level = 2; | |
1781 | } else { | |
1782 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1783 | priv->encryption_level = 1; | |
1784 | } | |
1785 | } | |
4d791aad | 1786 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
1da177e4 | 1787 | priv->exclude_unencrypted = 1; |
4d791aad | 1788 | if(dwrq->flags & IW_ENCODE_OPEN) |
1da177e4 | 1789 | priv->exclude_unencrypted = 0; |
4d791aad | 1790 | |
1da177e4 LT |
1791 | return -EINPROGRESS; /* Call commit handler */ |
1792 | } | |
1793 | ||
1da177e4 LT |
1794 | static int atmel_get_encode(struct net_device *dev, |
1795 | struct iw_request_info *info, | |
1796 | struct iw_point *dwrq, | |
1797 | char *extra) | |
1798 | { | |
1799 | struct atmel_private *priv = netdev_priv(dev); | |
1800 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1801 | |
1da177e4 LT |
1802 | if (!priv->wep_is_on) |
1803 | dwrq->flags = IW_ENCODE_DISABLED; | |
b16a228d SK |
1804 | else { |
1805 | if (priv->exclude_unencrypted) | |
1806 | dwrq->flags = IW_ENCODE_RESTRICTED; | |
1807 | else | |
1808 | dwrq->flags = IW_ENCODE_OPEN; | |
1809 | } | |
1da177e4 LT |
1810 | /* Which key do we want ? -1 -> tx index */ |
1811 | if (index < 0 || index >= 4) | |
1812 | index = priv->default_key; | |
1813 | dwrq->flags |= index + 1; | |
1814 | /* Copy the key to the user buffer */ | |
1815 | dwrq->length = priv->wep_key_len[index]; | |
1816 | if (dwrq->length > 16) { | |
1817 | dwrq->length=0; | |
1818 | } else { | |
1819 | memset(extra, 0, 16); | |
1820 | memcpy(extra, priv->wep_keys[index], dwrq->length); | |
1821 | } | |
4d791aad | 1822 | |
1da177e4 LT |
1823 | return 0; |
1824 | } | |
1825 | ||
9a6301c1 DW |
1826 | static int atmel_set_encodeext(struct net_device *dev, |
1827 | struct iw_request_info *info, | |
1828 | union iwreq_data *wrqu, | |
1829 | char *extra) | |
1830 | { | |
1831 | struct atmel_private *priv = netdev_priv(dev); | |
1832 | struct iw_point *encoding = &wrqu->encoding; | |
1833 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
0d467502 | 1834 | int idx, key_len, alg = ext->alg, set_key = 1; |
9a6301c1 DW |
1835 | |
1836 | /* Determine and validate the key index */ | |
1837 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1838 | if (idx) { | |
1839 | if (idx < 1 || idx > WEP_KEYS) | |
1840 | return -EINVAL; | |
1841 | idx--; | |
1842 | } else | |
1843 | idx = priv->default_key; | |
1844 | ||
0d467502 DW |
1845 | if (encoding->flags & IW_ENCODE_DISABLED) |
1846 | alg = IW_ENCODE_ALG_NONE; | |
9a6301c1 | 1847 | |
0d467502 | 1848 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
9a6301c1 | 1849 | priv->default_key = idx; |
0d467502 DW |
1850 | set_key = ext->key_len > 0 ? 1 : 0; |
1851 | } | |
9a6301c1 | 1852 | |
0d467502 DW |
1853 | if (set_key) { |
1854 | /* Set the requested key first */ | |
1855 | switch (alg) { | |
1856 | case IW_ENCODE_ALG_NONE: | |
1857 | priv->wep_is_on = 0; | |
1858 | priv->encryption_level = 0; | |
1859 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1860 | break; | |
1861 | case IW_ENCODE_ALG_WEP: | |
1862 | if (ext->key_len > 5) { | |
1863 | priv->wep_key_len[idx] = 13; | |
1864 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1865 | priv->encryption_level = 2; | |
1866 | } else if (ext->key_len > 0) { | |
1867 | priv->wep_key_len[idx] = 5; | |
1868 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1869 | priv->encryption_level = 1; | |
1870 | } else { | |
1871 | return -EINVAL; | |
1872 | } | |
1873 | priv->wep_is_on = 1; | |
1874 | memset(priv->wep_keys[idx], 0, 13); | |
1875 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); | |
1876 | memcpy(priv->wep_keys[idx], ext->key, key_len); | |
1877 | break; | |
1878 | default: | |
9a6301c1 DW |
1879 | return -EINVAL; |
1880 | } | |
9a6301c1 DW |
1881 | } |
1882 | ||
1883 | return -EINPROGRESS; | |
1884 | } | |
1885 | ||
1886 | static int atmel_get_encodeext(struct net_device *dev, | |
1887 | struct iw_request_info *info, | |
1888 | union iwreq_data *wrqu, | |
1889 | char *extra) | |
1890 | { | |
1891 | struct atmel_private *priv = netdev_priv(dev); | |
1892 | struct iw_point *encoding = &wrqu->encoding; | |
1893 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
1894 | int idx, max_key_len; | |
1895 | ||
1896 | max_key_len = encoding->length - sizeof(*ext); | |
1897 | if (max_key_len < 0) | |
1898 | return -EINVAL; | |
1899 | ||
1900 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1901 | if (idx) { | |
1902 | if (idx < 1 || idx > WEP_KEYS) | |
1903 | return -EINVAL; | |
1904 | idx--; | |
1905 | } else | |
1906 | idx = priv->default_key; | |
1907 | ||
1908 | encoding->flags = idx + 1; | |
1909 | memset(ext, 0, sizeof(*ext)); | |
1910 | ||
1911 | if (!priv->wep_is_on) { | |
1912 | ext->alg = IW_ENCODE_ALG_NONE; | |
1913 | ext->key_len = 0; | |
1914 | encoding->flags |= IW_ENCODE_DISABLED; | |
1915 | } else { | |
1916 | if (priv->encryption_level > 0) | |
1917 | ext->alg = IW_ENCODE_ALG_WEP; | |
1918 | else | |
1919 | return -EINVAL; | |
1920 | ||
1921 | ext->key_len = priv->wep_key_len[idx]; | |
1922 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); | |
1923 | encoding->flags |= IW_ENCODE_ENABLED; | |
1924 | } | |
1925 | ||
1926 | return 0; | |
1927 | } | |
1928 | ||
1929 | static int atmel_set_auth(struct net_device *dev, | |
1930 | struct iw_request_info *info, | |
1931 | union iwreq_data *wrqu, char *extra) | |
1932 | { | |
1933 | struct atmel_private *priv = netdev_priv(dev); | |
1934 | struct iw_param *param = &wrqu->param; | |
1935 | ||
1936 | switch (param->flags & IW_AUTH_INDEX) { | |
1937 | case IW_AUTH_WPA_VERSION: | |
1938 | case IW_AUTH_CIPHER_PAIRWISE: | |
1939 | case IW_AUTH_CIPHER_GROUP: | |
1940 | case IW_AUTH_KEY_MGMT: | |
1941 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
1942 | case IW_AUTH_PRIVACY_INVOKED: | |
1943 | /* | |
1944 | * atmel does not use these parameters | |
1945 | */ | |
1946 | break; | |
1947 | ||
1948 | case IW_AUTH_DROP_UNENCRYPTED: | |
1949 | priv->exclude_unencrypted = param->value ? 1 : 0; | |
1950 | break; | |
1951 | ||
1952 | case IW_AUTH_80211_AUTH_ALG: { | |
1953 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { | |
1954 | priv->exclude_unencrypted = 1; | |
1955 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { | |
1956 | priv->exclude_unencrypted = 0; | |
1957 | } else | |
1958 | return -EINVAL; | |
1959 | break; | |
1960 | } | |
1961 | ||
1962 | case IW_AUTH_WPA_ENABLED: | |
1963 | /* Silently accept disable of WPA */ | |
1964 | if (param->value > 0) | |
1965 | return -EOPNOTSUPP; | |
1966 | break; | |
1967 | ||
1968 | default: | |
1969 | return -EOPNOTSUPP; | |
1970 | } | |
1971 | return -EINPROGRESS; | |
1972 | } | |
1973 | ||
1974 | static int atmel_get_auth(struct net_device *dev, | |
1975 | struct iw_request_info *info, | |
1976 | union iwreq_data *wrqu, char *extra) | |
1977 | { | |
1978 | struct atmel_private *priv = netdev_priv(dev); | |
1979 | struct iw_param *param = &wrqu->param; | |
1980 | ||
1981 | switch (param->flags & IW_AUTH_INDEX) { | |
1982 | case IW_AUTH_DROP_UNENCRYPTED: | |
1983 | param->value = priv->exclude_unencrypted; | |
1984 | break; | |
1985 | ||
1986 | case IW_AUTH_80211_AUTH_ALG: | |
1987 | if (priv->exclude_unencrypted == 1) | |
1988 | param->value = IW_AUTH_ALG_SHARED_KEY; | |
1989 | else | |
1990 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; | |
1991 | break; | |
1992 | ||
1993 | case IW_AUTH_WPA_ENABLED: | |
1994 | param->value = 0; | |
1995 | break; | |
1996 | ||
1997 | default: | |
1998 | return -EOPNOTSUPP; | |
1999 | } | |
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | ||
1da177e4 LT |
2004 | static int atmel_get_name(struct net_device *dev, |
2005 | struct iw_request_info *info, | |
2006 | char *cwrq, | |
2007 | char *extra) | |
2008 | { | |
2009 | strcpy(cwrq, "IEEE 802.11-DS"); | |
2010 | return 0; | |
2011 | } | |
2012 | ||
2013 | static int atmel_set_rate(struct net_device *dev, | |
2014 | struct iw_request_info *info, | |
2015 | struct iw_param *vwrq, | |
2016 | char *extra) | |
2017 | { | |
2018 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2019 | |
1da177e4 LT |
2020 | if (vwrq->fixed == 0) { |
2021 | priv->tx_rate = 3; | |
2022 | priv->auto_tx_rate = 1; | |
2023 | } else { | |
2024 | priv->auto_tx_rate = 0; | |
4d791aad | 2025 | |
1da177e4 | 2026 | /* Which type of value ? */ |
4d791aad | 2027 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
1da177e4 | 2028 | /* Setting by rate index */ |
4d791aad | 2029 | priv->tx_rate = vwrq->value; |
1da177e4 LT |
2030 | } else { |
2031 | /* Setting by frequency value */ | |
2032 | switch (vwrq->value) { | |
2033 | case 1000000: priv->tx_rate = 0; break; | |
2034 | case 2000000: priv->tx_rate = 1; break; | |
2035 | case 5500000: priv->tx_rate = 2; break; | |
2036 | case 11000000: priv->tx_rate = 3; break; | |
2037 | default: return -EINVAL; | |
2038 | } | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | return -EINPROGRESS; | |
2043 | } | |
2044 | ||
2045 | static int atmel_set_mode(struct net_device *dev, | |
2046 | struct iw_request_info *info, | |
2047 | __u32 *uwrq, | |
2048 | char *extra) | |
2049 | { | |
2050 | struct atmel_private *priv = netdev_priv(dev); | |
2051 | ||
2052 | if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA) | |
2053 | return -EINVAL; | |
2054 | ||
2055 | priv->operating_mode = *uwrq; | |
4d791aad | 2056 | return -EINPROGRESS; |
1da177e4 LT |
2057 | } |
2058 | ||
2059 | static int atmel_get_mode(struct net_device *dev, | |
2060 | struct iw_request_info *info, | |
2061 | __u32 *uwrq, | |
2062 | char *extra) | |
2063 | { | |
2064 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2065 | |
1da177e4 LT |
2066 | *uwrq = priv->operating_mode; |
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | static int atmel_get_rate(struct net_device *dev, | |
2071 | struct iw_request_info *info, | |
2072 | struct iw_param *vwrq, | |
2073 | char *extra) | |
2074 | { | |
2075 | struct atmel_private *priv = netdev_priv(dev); | |
2076 | ||
2077 | if (priv->auto_tx_rate) { | |
2078 | vwrq->fixed = 0; | |
2079 | vwrq->value = 11000000; | |
2080 | } else { | |
2081 | vwrq->fixed = 1; | |
2082 | switch(priv->tx_rate) { | |
2083 | case 0: vwrq->value = 1000000; break; | |
2084 | case 1: vwrq->value = 2000000; break; | |
2085 | case 2: vwrq->value = 5500000; break; | |
2086 | case 3: vwrq->value = 11000000; break; | |
2087 | } | |
2088 | } | |
2089 | return 0; | |
2090 | } | |
2091 | ||
2092 | static int atmel_set_power(struct net_device *dev, | |
2093 | struct iw_request_info *info, | |
2094 | struct iw_param *vwrq, | |
2095 | char *extra) | |
2096 | { | |
2097 | struct atmel_private *priv = netdev_priv(dev); | |
2098 | priv->power_mode = vwrq->disabled ? 0 : 1; | |
2099 | return -EINPROGRESS; | |
2100 | } | |
2101 | ||
2102 | static int atmel_get_power(struct net_device *dev, | |
2103 | struct iw_request_info *info, | |
2104 | struct iw_param *vwrq, | |
2105 | char *extra) | |
2106 | { | |
2107 | struct atmel_private *priv = netdev_priv(dev); | |
2108 | vwrq->disabled = priv->power_mode ? 0 : 1; | |
2109 | vwrq->flags = IW_POWER_ON; | |
2110 | return 0; | |
2111 | } | |
2112 | ||
2113 | static int atmel_set_retry(struct net_device *dev, | |
2114 | struct iw_request_info *info, | |
2115 | struct iw_param *vwrq, | |
2116 | char *extra) | |
2117 | { | |
2118 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad CP |
2119 | |
2120 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { | |
6a484db4 | 2121 | if (vwrq->flags & IW_RETRY_LONG) |
1da177e4 | 2122 | priv->long_retry = vwrq->value; |
6a484db4 | 2123 | else if (vwrq->flags & IW_RETRY_SHORT) |
1da177e4 LT |
2124 | priv->short_retry = vwrq->value; |
2125 | else { | |
2126 | /* No modifier : set both */ | |
2127 | priv->long_retry = vwrq->value; | |
2128 | priv->short_retry = vwrq->value; | |
2129 | } | |
4d791aad | 2130 | return -EINPROGRESS; |
1da177e4 | 2131 | } |
4d791aad | 2132 | |
1da177e4 LT |
2133 | return -EINVAL; |
2134 | } | |
2135 | ||
2136 | static int atmel_get_retry(struct net_device *dev, | |
2137 | struct iw_request_info *info, | |
2138 | struct iw_param *vwrq, | |
2139 | char *extra) | |
2140 | { | |
2141 | struct atmel_private *priv = netdev_priv(dev); | |
2142 | ||
2143 | vwrq->disabled = 0; /* Can't be disabled */ | |
2144 | ||
6a484db4 JT |
2145 | /* Note : by default, display the short retry number */ |
2146 | if (vwrq->flags & IW_RETRY_LONG) { | |
2147 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; | |
1da177e4 LT |
2148 | vwrq->value = priv->long_retry; |
2149 | } else { | |
2150 | vwrq->flags = IW_RETRY_LIMIT; | |
2151 | vwrq->value = priv->short_retry; | |
4d791aad | 2152 | if (priv->long_retry != priv->short_retry) |
6a484db4 | 2153 | vwrq->flags |= IW_RETRY_SHORT; |
1da177e4 LT |
2154 | } |
2155 | ||
2156 | return 0; | |
2157 | } | |
2158 | ||
2159 | static int atmel_set_rts(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); | |
2165 | int rthr = vwrq->value; | |
2166 | ||
4d791aad | 2167 | if (vwrq->disabled) |
1da177e4 | 2168 | rthr = 2347; |
4d791aad | 2169 | if ((rthr < 0) || (rthr > 2347)) { |
1da177e4 LT |
2170 | return -EINVAL; |
2171 | } | |
2172 | priv->rts_threshold = rthr; | |
4d791aad | 2173 | |
1da177e4 LT |
2174 | return -EINPROGRESS; /* Call commit handler */ |
2175 | } | |
2176 | ||
2177 | static int atmel_get_rts(struct net_device *dev, | |
2178 | struct iw_request_info *info, | |
2179 | struct iw_param *vwrq, | |
2180 | char *extra) | |
2181 | { | |
2182 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2183 | |
1da177e4 LT |
2184 | vwrq->value = priv->rts_threshold; |
2185 | vwrq->disabled = (vwrq->value >= 2347); | |
2186 | vwrq->fixed = 1; | |
2187 | ||
2188 | return 0; | |
2189 | } | |
2190 | ||
2191 | static int atmel_set_frag(struct net_device *dev, | |
2192 | struct iw_request_info *info, | |
2193 | struct iw_param *vwrq, | |
2194 | char *extra) | |
2195 | { | |
2196 | struct atmel_private *priv = netdev_priv(dev); | |
2197 | int fthr = vwrq->value; | |
2198 | ||
4d791aad | 2199 | if (vwrq->disabled) |
1da177e4 | 2200 | fthr = 2346; |
4d791aad | 2201 | if ((fthr < 256) || (fthr > 2346)) { |
1da177e4 LT |
2202 | return -EINVAL; |
2203 | } | |
2204 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ | |
2205 | priv->frag_threshold = fthr; | |
4d791aad | 2206 | |
1da177e4 LT |
2207 | return -EINPROGRESS; /* Call commit handler */ |
2208 | } | |
2209 | ||
2210 | static int atmel_get_frag(struct net_device *dev, | |
2211 | struct iw_request_info *info, | |
2212 | struct iw_param *vwrq, | |
2213 | char *extra) | |
2214 | { | |
2215 | struct atmel_private *priv = netdev_priv(dev); | |
2216 | ||
2217 | vwrq->value = priv->frag_threshold; | |
2218 | vwrq->disabled = (vwrq->value >= 2346); | |
2219 | vwrq->fixed = 1; | |
2220 | ||
2221 | return 0; | |
2222 | } | |
2223 | ||
2224 | static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, | |
2225 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; | |
2226 | ||
2227 | static int atmel_set_freq(struct net_device *dev, | |
2228 | struct iw_request_info *info, | |
2229 | struct iw_freq *fwrq, | |
2230 | char *extra) | |
2231 | { | |
2232 | struct atmel_private *priv = netdev_priv(dev); | |
2233 | int rc = -EINPROGRESS; /* Call commit handler */ | |
4d791aad | 2234 | |
1da177e4 | 2235 | /* If setting by frequency, convert to a channel */ |
4d791aad CP |
2236 | if ((fwrq->e == 1) && |
2237 | (fwrq->m >= (int) 241200000) && | |
2238 | (fwrq->m <= (int) 248700000)) { | |
1da177e4 LT |
2239 | int f = fwrq->m / 100000; |
2240 | int c = 0; | |
4d791aad | 2241 | while ((c < 14) && (f != frequency_list[c])) |
1da177e4 LT |
2242 | c++; |
2243 | /* Hack to fall through... */ | |
2244 | fwrq->e = 0; | |
2245 | fwrq->m = c + 1; | |
2246 | } | |
2247 | /* Setting by channel number */ | |
4d791aad | 2248 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
1da177e4 LT |
2249 | rc = -EOPNOTSUPP; |
2250 | else { | |
2251 | int channel = fwrq->m; | |
2252 | if (atmel_validate_channel(priv, channel) == 0) { | |
2253 | priv->channel = channel; | |
2254 | } else { | |
2255 | rc = -EINVAL; | |
4d791aad | 2256 | } |
1da177e4 LT |
2257 | } |
2258 | return rc; | |
2259 | } | |
2260 | ||
2261 | static int atmel_get_freq(struct net_device *dev, | |
2262 | struct iw_request_info *info, | |
2263 | struct iw_freq *fwrq, | |
2264 | char *extra) | |
2265 | { | |
2266 | struct atmel_private *priv = netdev_priv(dev); | |
2267 | ||
2268 | fwrq->m = priv->channel; | |
2269 | fwrq->e = 0; | |
2270 | return 0; | |
2271 | } | |
2272 | ||
2273 | static int atmel_set_scan(struct net_device *dev, | |
2274 | struct iw_request_info *info, | |
2275 | struct iw_param *vwrq, | |
2276 | char *extra) | |
2277 | { | |
2278 | struct atmel_private *priv = netdev_priv(dev); | |
2279 | unsigned long flags; | |
2280 | ||
2281 | /* Note : you may have realised that, as this is a SET operation, | |
2282 | * this is privileged and therefore a normal user can't | |
2283 | * perform scanning. | |
2284 | * This is not an error, while the device perform scanning, | |
2285 | * traffic doesn't flow, so it's a perfect DoS... | |
2286 | * Jean II */ | |
4d791aad | 2287 | |
1da177e4 LT |
2288 | if (priv->station_state == STATION_STATE_DOWN) |
2289 | return -EAGAIN; | |
2290 | ||
2291 | /* Timeout old surveys. */ | |
2292 | if ((jiffies - priv->last_survey) > (20 * HZ)) | |
2293 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
2294 | priv->last_survey = jiffies; | |
2295 | ||
2296 | /* Initiate a scan command */ | |
2297 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) | |
2298 | return -EBUSY; | |
4d791aad | 2299 | |
1da177e4 LT |
2300 | del_timer_sync(&priv->management_timer); |
2301 | spin_lock_irqsave(&priv->irqlock, flags); | |
4d791aad | 2302 | |
1da177e4 LT |
2303 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
2304 | priv->fast_scan = 0; | |
2305 | atmel_scan(priv, 0); | |
2306 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
4d791aad | 2307 | |
1da177e4 LT |
2308 | return 0; |
2309 | } | |
2310 | ||
2311 | static int atmel_get_scan(struct net_device *dev, | |
2312 | struct iw_request_info *info, | |
2313 | struct iw_point *dwrq, | |
2314 | char *extra) | |
2315 | { | |
2316 | struct atmel_private *priv = netdev_priv(dev); | |
2317 | int i; | |
2318 | char *current_ev = extra; | |
2319 | struct iw_event iwe; | |
4d791aad | 2320 | |
1da177e4 LT |
2321 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
2322 | return -EAGAIN; | |
4d791aad CP |
2323 | |
2324 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2325 | iwe.cmd = SIOCGIWAP; |
2326 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
2327 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6); | |
2328 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_ADDR_LEN); | |
2329 | ||
2330 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; | |
2331 | if (iwe.u.data.length > 32) | |
2332 | iwe.u.data.length = 32; | |
2333 | iwe.cmd = SIOCGIWESSID; | |
2334 | iwe.u.data.flags = 1; | |
2335 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, priv->BSSinfo[i].SSID); | |
4d791aad | 2336 | |
1da177e4 LT |
2337 | iwe.cmd = SIOCGIWMODE; |
2338 | iwe.u.mode = priv->BSSinfo[i].BSStype; | |
2339 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_UINT_LEN); | |
4d791aad | 2340 | |
1da177e4 LT |
2341 | iwe.cmd = SIOCGIWFREQ; |
2342 | iwe.u.freq.m = priv->BSSinfo[i].channel; | |
2343 | iwe.u.freq.e = 0; | |
2344 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_FREQ_LEN); | |
4d791aad | 2345 | |
1da177e4 LT |
2346 | iwe.cmd = SIOCGIWENCODE; |
2347 | if (priv->BSSinfo[i].UsingWEP) | |
2348 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
2349 | else | |
2350 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
2351 | iwe.u.data.length = 0; | |
2352 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, NULL); | |
1da177e4 LT |
2353 | } |
2354 | ||
2355 | /* Length of data */ | |
2356 | dwrq->length = (current_ev - extra); | |
4d791aad CP |
2357 | dwrq->flags = 0; |
2358 | ||
1da177e4 LT |
2359 | return 0; |
2360 | } | |
2361 | ||
2362 | static int atmel_get_range(struct net_device *dev, | |
2363 | struct iw_request_info *info, | |
2364 | struct iw_point *dwrq, | |
2365 | char *extra) | |
2366 | { | |
2367 | struct atmel_private *priv = netdev_priv(dev); | |
2368 | struct iw_range *range = (struct iw_range *) extra; | |
4d791aad | 2369 | int k, i, j; |
1da177e4 LT |
2370 | |
2371 | dwrq->length = sizeof(struct iw_range); | |
f36be621 | 2372 | memset(range, 0, sizeof(struct iw_range)); |
1da177e4 LT |
2373 | range->min_nwid = 0x0000; |
2374 | range->max_nwid = 0x0000; | |
2375 | range->num_channels = 0; | |
b4341135 | 2376 | for (j = 0; j < ARRAY_SIZE(channel_table); j++) |
1da177e4 LT |
2377 | if (priv->reg_domain == channel_table[j].reg_domain) { |
2378 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; | |
2379 | break; | |
2380 | } | |
2381 | if (range->num_channels != 0) { | |
4d791aad | 2382 | for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) { |
1da177e4 | 2383 | range->freq[k].i = i; /* List index */ |
4d791aad | 2384 | range->freq[k].m = frequency_list[i - 1] * 100000; |
1da177e4 LT |
2385 | range->freq[k++].e = 1; /* Values in table in MHz -> * 10^5 * 10 */ |
2386 | } | |
2387 | range->num_frequency = k; | |
2388 | } | |
4d791aad | 2389 | |
1da177e4 LT |
2390 | range->max_qual.qual = 100; |
2391 | range->max_qual.level = 100; | |
2392 | range->max_qual.noise = 0; | |
2393 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
2394 | ||
2395 | range->avg_qual.qual = 50; | |
2396 | range->avg_qual.level = 50; | |
2397 | range->avg_qual.noise = 0; | |
2398 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; | |
2399 | ||
2400 | range->sensitivity = 0; | |
2401 | ||
2402 | range->bitrate[0] = 1000000; | |
2403 | range->bitrate[1] = 2000000; | |
2404 | range->bitrate[2] = 5500000; | |
2405 | range->bitrate[3] = 11000000; | |
2406 | range->num_bitrates = 4; | |
2407 | ||
2408 | range->min_rts = 0; | |
2409 | range->max_rts = 2347; | |
2410 | range->min_frag = 256; | |
2411 | range->max_frag = 2346; | |
2412 | ||
2413 | range->encoding_size[0] = 5; | |
2414 | range->encoding_size[1] = 13; | |
2415 | range->num_encoding_sizes = 2; | |
2416 | range->max_encoding_tokens = 4; | |
4d791aad | 2417 | |
1da177e4 LT |
2418 | range->pmp_flags = IW_POWER_ON; |
2419 | range->pmt_flags = IW_POWER_ON; | |
2420 | range->pm_capa = 0; | |
4d791aad | 2421 | |
1da177e4 LT |
2422 | range->we_version_source = WIRELESS_EXT; |
2423 | range->we_version_compiled = WIRELESS_EXT; | |
2424 | range->retry_capa = IW_RETRY_LIMIT ; | |
2425 | range->retry_flags = IW_RETRY_LIMIT; | |
2426 | range->r_time_flags = 0; | |
2427 | range->min_retry = 1; | |
2428 | range->max_retry = 65535; | |
2429 | ||
2430 | return 0; | |
2431 | } | |
2432 | ||
2433 | static int atmel_set_wap(struct net_device *dev, | |
2434 | struct iw_request_info *info, | |
2435 | struct sockaddr *awrq, | |
2436 | char *extra) | |
2437 | { | |
2438 | struct atmel_private *priv = netdev_priv(dev); | |
2439 | int i; | |
9a6301c1 DW |
2440 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
2441 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
1da177e4 LT |
2442 | unsigned long flags; |
2443 | ||
2444 | if (awrq->sa_family != ARPHRD_ETHER) | |
2445 | return -EINVAL; | |
4d791aad | 2446 | |
9a6301c1 DW |
2447 | if (!memcmp(any, awrq->sa_data, 6) || |
2448 | !memcmp(off, awrq->sa_data, 6)) { | |
1da177e4 LT |
2449 | del_timer_sync(&priv->management_timer); |
2450 | spin_lock_irqsave(&priv->irqlock, flags); | |
2451 | atmel_scan(priv, 1); | |
2452 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2453 | return 0; | |
2454 | } | |
4d791aad CP |
2455 | |
2456 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2457 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
2458 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { | |
2459 | return -EINVAL; | |
2460 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { | |
2461 | return -EINVAL; | |
2462 | } else { | |
2463 | del_timer_sync(&priv->management_timer); | |
2464 | spin_lock_irqsave(&priv->irqlock, flags); | |
2465 | atmel_join_bss(priv, i); | |
2466 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2467 | return 0; | |
2468 | } | |
2469 | } | |
2470 | } | |
4d791aad | 2471 | |
1da177e4 LT |
2472 | return -EINVAL; |
2473 | } | |
4d791aad | 2474 | |
1da177e4 LT |
2475 | static int atmel_config_commit(struct net_device *dev, |
2476 | struct iw_request_info *info, /* NULL */ | |
2477 | void *zwrq, /* NULL */ | |
2478 | char *extra) /* NULL */ | |
2479 | { | |
2480 | return atmel_open(dev); | |
2481 | } | |
2482 | ||
4d791aad | 2483 | static const iw_handler atmel_handler[] = |
1da177e4 LT |
2484 | { |
2485 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ | |
4d791aad | 2486 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
1da177e4 LT |
2487 | (iw_handler) NULL, /* SIOCSIWNWID */ |
2488 | (iw_handler) NULL, /* SIOCGIWNWID */ | |
2489 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ | |
2490 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ | |
2491 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ | |
2492 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ | |
4d791aad CP |
2493 | (iw_handler) NULL, /* SIOCSIWSENS */ |
2494 | (iw_handler) NULL, /* SIOCGIWSENS */ | |
1da177e4 LT |
2495 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
2496 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ | |
2497 | (iw_handler) NULL, /* SIOCSIWPRIV */ | |
2498 | (iw_handler) NULL, /* SIOCGIWPRIV */ | |
2499 | (iw_handler) NULL, /* SIOCSIWSTATS */ | |
2500 | (iw_handler) NULL, /* SIOCGIWSTATS */ | |
2501 | (iw_handler) NULL, /* SIOCSIWSPY */ | |
2502 | (iw_handler) NULL, /* SIOCGIWSPY */ | |
2503 | (iw_handler) NULL, /* -- hole -- */ | |
2504 | (iw_handler) NULL, /* -- hole -- */ | |
2505 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ | |
2506 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ | |
2507 | (iw_handler) NULL, /* -- hole -- */ | |
4d791aad | 2508 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
1da177e4 LT |
2509 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
2510 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ | |
2511 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ | |
2512 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ | |
4d791aad CP |
2513 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
2514 | (iw_handler) NULL, /* SIOCGIWNICKN */ | |
1da177e4 LT |
2515 | (iw_handler) NULL, /* -- hole -- */ |
2516 | (iw_handler) NULL, /* -- hole -- */ | |
2517 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ | |
2518 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ | |
2519 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ | |
2520 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ | |
2521 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ | |
2522 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ | |
4d791aad CP |
2523 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
2524 | (iw_handler) NULL, /* SIOCGIWTXPOW */ | |
1da177e4 LT |
2525 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
2526 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ | |
2527 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ | |
2528 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ | |
2529 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ | |
2530 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ | |
9a6301c1 DW |
2531 | (iw_handler) NULL, /* -- hole -- */ |
2532 | (iw_handler) NULL, /* -- hole -- */ | |
2533 | (iw_handler) NULL, /* SIOCSIWGENIE */ | |
2534 | (iw_handler) NULL, /* SIOCGIWGENIE */ | |
2535 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ | |
2536 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ | |
2537 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ | |
2538 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ | |
2539 | (iw_handler) NULL, /* SIOCSIWPMKSA */ | |
1da177e4 LT |
2540 | }; |
2541 | ||
4d791aad | 2542 | static const iw_handler atmel_private_handler[] = |
1da177e4 LT |
2543 | { |
2544 | NULL, /* SIOCIWFIRSTPRIV */ | |
2545 | }; | |
2546 | ||
2547 | typedef struct atmel_priv_ioctl { | |
2548 | char id[32]; | |
4d791aad CP |
2549 | unsigned char __user *data; |
2550 | unsigned short len; | |
1da177e4 LT |
2551 | } atmel_priv_ioctl; |
2552 | ||
4d791aad CP |
2553 | #define ATMELFWL SIOCIWFIRSTPRIV |
2554 | #define ATMELIDIFC ATMELFWL + 1 | |
2555 | #define ATMELRD ATMELFWL + 2 | |
2556 | #define ATMELMAGIC 0x51807 | |
1da177e4 LT |
2557 | #define REGDOMAINSZ 20 |
2558 | ||
2559 | static const struct iw_priv_args atmel_private_args[] = { | |
4d791aad CP |
2560 | { |
2561 | .cmd = ATMELFWL, | |
2562 | .set_args = IW_PRIV_TYPE_BYTE | |
2563 | | IW_PRIV_SIZE_FIXED | |
2564 | | sizeof (atmel_priv_ioctl), | |
2565 | .get_args = IW_PRIV_TYPE_NONE, | |
2566 | .name = "atmelfwl" | |
2567 | }, { | |
2568 | .cmd = ATMELIDIFC, | |
2569 | .set_args = IW_PRIV_TYPE_NONE, | |
2570 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, | |
2571 | .name = "atmelidifc" | |
2572 | }, { | |
2573 | .cmd = ATMELRD, | |
2574 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, | |
2575 | .get_args = IW_PRIV_TYPE_NONE, | |
2576 | .name = "regdomain" | |
2577 | }, | |
1da177e4 LT |
2578 | }; |
2579 | ||
4d791aad | 2580 | static const struct iw_handler_def atmel_handler_def = |
1da177e4 | 2581 | { |
b4341135 DT |
2582 | .num_standard = ARRAY_SIZE(atmel_handler), |
2583 | .num_private = ARRAY_SIZE(atmel_private_handler), | |
2584 | .num_private_args = ARRAY_SIZE(atmel_private_args), | |
1da177e4 | 2585 | .standard = (iw_handler *) atmel_handler, |
4d791aad | 2586 | .private = (iw_handler *) atmel_private_handler, |
72f98d38 JT |
2587 | .private_args = (struct iw_priv_args *) atmel_private_args, |
2588 | .get_wireless_stats = atmel_get_wireless_stats | |
1da177e4 LT |
2589 | }; |
2590 | ||
2591 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2592 | { | |
2593 | int i, rc = 0; | |
2594 | struct atmel_private *priv = netdev_priv(dev); | |
2595 | atmel_priv_ioctl com; | |
2596 | struct iwreq *wrq = (struct iwreq *) rq; | |
2597 | unsigned char *new_firmware; | |
4d791aad | 2598 | char domain[REGDOMAINSZ + 1]; |
1da177e4 LT |
2599 | |
2600 | switch (cmd) { | |
1da177e4 | 2601 | case ATMELIDIFC: |
4d791aad | 2602 | wrq->u.param.value = ATMELMAGIC; |
1da177e4 | 2603 | break; |
4d791aad | 2604 | |
1da177e4 LT |
2605 | case ATMELFWL: |
2606 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { | |
2607 | rc = -EFAULT; | |
2608 | break; | |
2609 | } | |
2610 | ||
2611 | if (!capable(CAP_NET_ADMIN)) { | |
2612 | rc = -EPERM; | |
2613 | break; | |
2614 | } | |
2615 | ||
2616 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { | |
2617 | rc = -ENOMEM; | |
2618 | break; | |
2619 | } | |
2620 | ||
2621 | if (copy_from_user(new_firmware, com.data, com.len)) { | |
2622 | kfree(new_firmware); | |
2623 | rc = -EFAULT; | |
2624 | break; | |
2625 | } | |
2626 | ||
b4558ea9 | 2627 | kfree(priv->firmware); |
4d791aad | 2628 | |
1da177e4 LT |
2629 | priv->firmware = new_firmware; |
2630 | priv->firmware_length = com.len; | |
2631 | strncpy(priv->firmware_id, com.id, 31); | |
2632 | priv->firmware_id[31] = '\0'; | |
2633 | break; | |
2634 | ||
2635 | case ATMELRD: | |
2636 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { | |
2637 | rc = -EFAULT; | |
2638 | break; | |
2639 | } | |
4d791aad | 2640 | |
1da177e4 LT |
2641 | if (!capable(CAP_NET_ADMIN)) { |
2642 | rc = -EPERM; | |
2643 | break; | |
2644 | } | |
2645 | ||
2646 | domain[REGDOMAINSZ] = 0; | |
2647 | rc = -EINVAL; | |
b4341135 | 2648 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) { |
1da177e4 LT |
2649 | /* strcasecmp doesn't exist in the library */ |
2650 | char *a = channel_table[i].name; | |
2651 | char *b = domain; | |
2652 | while (*a) { | |
2653 | char c1 = *a++; | |
2654 | char c2 = *b++; | |
2655 | if (tolower(c1) != tolower(c2)) | |
2656 | break; | |
2657 | } | |
2658 | if (!*a && !*b) { | |
2659 | priv->config_reg_domain = channel_table[i].reg_domain; | |
2660 | rc = 0; | |
2661 | } | |
2662 | } | |
4d791aad | 2663 | |
1da177e4 LT |
2664 | if (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
2665 | rc = atmel_open(dev); | |
2666 | break; | |
4d791aad | 2667 | |
1da177e4 LT |
2668 | default: |
2669 | rc = -EOPNOTSUPP; | |
2670 | } | |
4d791aad | 2671 | |
1da177e4 LT |
2672 | return rc; |
2673 | } | |
2674 | ||
2675 | struct auth_body { | |
2676 | u16 alg; | |
2677 | u16 trans_seq; | |
2678 | u16 status; | |
2679 | u8 el_id; | |
2680 | u8 chall_text_len; | |
2681 | u8 chall_text[253]; | |
4d791aad | 2682 | }; |
1da177e4 LT |
2683 | |
2684 | static void atmel_enter_state(struct atmel_private *priv, int new_state) | |
2685 | { | |
2686 | int old_state = priv->station_state; | |
4d791aad | 2687 | |
1da177e4 LT |
2688 | if (new_state == old_state) |
2689 | return; | |
4d791aad | 2690 | |
1da177e4 | 2691 | priv->station_state = new_state; |
4d791aad | 2692 | |
1da177e4 LT |
2693 | if (new_state == STATION_STATE_READY) { |
2694 | netif_start_queue(priv->dev); | |
2695 | netif_carrier_on(priv->dev); | |
2696 | } | |
2697 | ||
2698 | if (old_state == STATION_STATE_READY) { | |
2699 | netif_carrier_off(priv->dev); | |
2700 | if (netif_running(priv->dev)) | |
2701 | netif_stop_queue(priv->dev); | |
2702 | priv->last_beacon_timestamp = 0; | |
2703 | } | |
2704 | } | |
2705 | ||
2706 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) | |
2707 | { | |
2708 | struct { | |
2709 | u8 BSSID[6]; | |
2710 | u8 SSID[MAX_SSID_LENGTH]; | |
2711 | u8 scan_type; | |
2712 | u8 channel; | |
2713 | u16 BSS_type; | |
2714 | u16 min_channel_time; | |
2715 | u16 max_channel_time; | |
2716 | u8 options; | |
2717 | u8 SSID_size; | |
2718 | } cmd; | |
4d791aad | 2719 | |
1da177e4 LT |
2720 | memset(cmd.BSSID, 0xff, 6); |
2721 | ||
2722 | if (priv->fast_scan) { | |
2723 | cmd.SSID_size = priv->SSID_size; | |
2724 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2725 | cmd.min_channel_time = cpu_to_le16(10); | |
2726 | cmd.max_channel_time = cpu_to_le16(50); | |
2727 | } else { | |
2728 | priv->BSS_list_entries = 0; | |
2729 | cmd.SSID_size = 0; | |
2730 | cmd.min_channel_time = cpu_to_le16(10); | |
2731 | cmd.max_channel_time = cpu_to_le16(120); | |
2732 | } | |
4d791aad | 2733 | |
1da177e4 | 2734 | cmd.options = 0; |
4d791aad | 2735 | |
1da177e4 LT |
2736 | if (!specific_ssid) |
2737 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; | |
4d791aad CP |
2738 | |
2739 | cmd.channel = (priv->channel & 0x7f); | |
1da177e4 | 2740 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
4d791aad | 2741 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
1da177e4 | 2742 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
4d791aad | 2743 | |
1da177e4 LT |
2744 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
2745 | ||
2746 | /* This must come after all hardware access to avoid being messed up | |
2747 | by stuff happening in interrupt context after we leave STATE_DOWN */ | |
2748 | atmel_enter_state(priv, STATION_STATE_SCANNING); | |
2749 | } | |
2750 | ||
2751 | static void join(struct atmel_private *priv, int type) | |
2752 | { | |
2753 | struct { | |
2754 | u8 BSSID[6]; | |
2755 | u8 SSID[MAX_SSID_LENGTH]; | |
2756 | u8 BSS_type; /* this is a short in a scan command - weird */ | |
2757 | u8 channel; | |
2758 | u16 timeout; | |
2759 | u8 SSID_size; | |
2760 | u8 reserved; | |
2761 | } cmd; | |
2762 | ||
2763 | cmd.SSID_size = priv->SSID_size; | |
2764 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2765 | memcpy(cmd.BSSID, priv->CurrentBSSID, 6); | |
2766 | cmd.channel = (priv->channel & 0x7f); | |
2767 | cmd.BSS_type = type; | |
2768 | cmd.timeout = cpu_to_le16(2000); | |
2769 | ||
4d791aad | 2770 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
1da177e4 LT |
2771 | } |
2772 | ||
1da177e4 LT |
2773 | static void start(struct atmel_private *priv, int type) |
2774 | { | |
2775 | struct { | |
2776 | u8 BSSID[6]; | |
2777 | u8 SSID[MAX_SSID_LENGTH]; | |
4d791aad | 2778 | u8 BSS_type; |
1da177e4 LT |
2779 | u8 channel; |
2780 | u8 SSID_size; | |
2781 | u8 reserved[3]; | |
2782 | } cmd; | |
2783 | ||
2784 | cmd.SSID_size = priv->SSID_size; | |
2785 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2786 | memcpy(cmd.BSSID, priv->BSSID, 6); | |
2787 | cmd.BSS_type = type; | |
2788 | cmd.channel = (priv->channel & 0x7f); | |
2789 | ||
4d791aad | 2790 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
1da177e4 LT |
2791 | } |
2792 | ||
4d791aad CP |
2793 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
2794 | u8 channel) | |
1da177e4 LT |
2795 | { |
2796 | int rejoin = 0; | |
4861dd79 | 2797 | int new = capability & MFIE_TYPE_POWER_CONSTRAINT ? |
1da177e4 LT |
2798 | SHORT_PREAMBLE : LONG_PREAMBLE; |
2799 | ||
2800 | if (priv->preamble != new) { | |
2801 | priv->preamble = new; | |
2802 | rejoin = 1; | |
2803 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); | |
2804 | } | |
4d791aad | 2805 | |
1da177e4 LT |
2806 | if (priv->channel != channel) { |
2807 | priv->channel = channel; | |
2808 | rejoin = 1; | |
2809 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); | |
2810 | } | |
4d791aad | 2811 | |
1da177e4 LT |
2812 | if (rejoin) { |
2813 | priv->station_is_associated = 0; | |
2814 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 2815 | |
1da177e4 LT |
2816 | if (priv->operating_mode == IW_MODE_INFRA) |
2817 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 2818 | else |
1da177e4 | 2819 | join(priv, BSS_TYPE_AD_HOC); |
4d791aad | 2820 | } |
1da177e4 LT |
2821 | } |
2822 | ||
4d791aad CP |
2823 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
2824 | u8 *challenge, int challenge_len) | |
1da177e4 | 2825 | { |
4ca5253d | 2826 | struct ieee80211_hdr_4addr header; |
1da177e4 | 2827 | struct auth_body auth; |
4d791aad CP |
2828 | |
2829 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); | |
2830 | header.duration_id = cpu_to_le16(0x8000); | |
1da177e4 LT |
2831 | header.seq_ctl = 0; |
2832 | memcpy(header.addr1, priv->CurrentBSSID, 6); | |
2833 | memcpy(header.addr2, priv->dev->dev_addr, 6); | |
2834 | memcpy(header.addr3, priv->CurrentBSSID, 6); | |
4d791aad CP |
2835 | |
2836 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) | |
1da177e4 | 2837 | /* no WEP for authentication frames with TrSeqNo 1 */ |
b16a228d | 2838 | header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
4d791aad CP |
2839 | |
2840 | auth.alg = cpu_to_le16(system); | |
1da177e4 LT |
2841 | |
2842 | auth.status = 0; | |
2843 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); | |
4d791aad | 2844 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
1da177e4 | 2845 | priv->CurrentAuthentTransactionSeqNum += 2; |
4d791aad | 2846 | |
1da177e4 LT |
2847 | if (challenge_len != 0) { |
2848 | auth.el_id = 16; /* challenge_text */ | |
2849 | auth.chall_text_len = challenge_len; | |
2850 | memcpy(auth.chall_text, challenge, challenge_len); | |
2851 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); | |
2852 | } else { | |
2853 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); | |
2854 | } | |
2855 | } | |
2856 | ||
2857 | static void send_association_request(struct atmel_private *priv, int is_reassoc) | |
2858 | { | |
2859 | u8 *ssid_el_p; | |
2860 | int bodysize; | |
4ca5253d | 2861 | struct ieee80211_hdr_4addr header; |
1da177e4 LT |
2862 | struct ass_req_format { |
2863 | u16 capability; | |
4d791aad | 2864 | u16 listen_interval; |
1da177e4 LT |
2865 | u8 ap[6]; /* nothing after here directly accessible */ |
2866 | u8 ssid_el_id; | |
2867 | u8 ssid_len; | |
2868 | u8 ssid[MAX_SSID_LENGTH]; | |
2869 | u8 sup_rates_el_id; | |
2870 | u8 sup_rates_len; | |
2871 | u8 rates[4]; | |
2872 | } body; | |
4d791aad CP |
2873 | |
2874 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
b453872c | 2875 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
1da177e4 LT |
2876 | header.duration_id = cpu_to_le16(0x8000); |
2877 | header.seq_ctl = 0; | |
2878 | ||
4d791aad | 2879 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
1da177e4 | 2880 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
4d791aad | 2881 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
1da177e4 | 2882 | |
4861dd79 | 2883 | body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS); |
1da177e4 | 2884 | if (priv->wep_is_on) |
4861dd79 | 2885 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); |
1da177e4 | 2886 | if (priv->preamble == SHORT_PREAMBLE) |
4861dd79 | 2887 | body.capability |= cpu_to_le16(MFIE_TYPE_POWER_CONSTRAINT); |
1da177e4 LT |
2888 | |
2889 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); | |
4d791aad | 2890 | |
1da177e4 LT |
2891 | /* current AP address - only in reassoc frame */ |
2892 | if (is_reassoc) { | |
4d791aad | 2893 | memcpy(body.ap, priv->CurrentBSSID, 6); |
1da177e4 LT |
2894 | ssid_el_p = (u8 *)&body.ssid_el_id; |
2895 | bodysize = 18 + priv->SSID_size; | |
2896 | } else { | |
2897 | ssid_el_p = (u8 *)&body.ap[0]; | |
2898 | bodysize = 12 + priv->SSID_size; | |
2899 | } | |
4d791aad | 2900 | |
4861dd79 | 2901 | ssid_el_p[0] = MFIE_TYPE_SSID; |
1da177e4 LT |
2902 | ssid_el_p[1] = priv->SSID_size; |
2903 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); | |
4861dd79 | 2904 | ssid_el_p[2 + priv->SSID_size] = MFIE_TYPE_RATES; |
1da177e4 LT |
2905 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */ |
2906 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); | |
2907 | ||
2908 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); | |
2909 | } | |
2910 | ||
4d791aad CP |
2911 | static int is_frame_from_current_bss(struct atmel_private *priv, |
2912 | struct ieee80211_hdr_4addr *header) | |
1da177e4 | 2913 | { |
b453872c | 2914 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
2915 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
2916 | else | |
2917 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; | |
2918 | } | |
2919 | ||
2920 | static int retrieve_bss(struct atmel_private *priv) | |
2921 | { | |
2922 | int i; | |
2923 | int max_rssi = -128; | |
2924 | int max_index = -1; | |
4d791aad | 2925 | |
1da177e4 LT |
2926 | if (priv->BSS_list_entries == 0) |
2927 | return -1; | |
4d791aad | 2928 | |
1da177e4 | 2929 | if (priv->connect_to_any_BSS) { |
4d791aad CP |
2930 | /* Select a BSS with the max-RSSI but of the same type and of |
2931 | the same WEP mode and that it is not marked as 'bad' (i.e. | |
2932 | we had previously failed to connect to this BSS with the | |
2933 | settings that we currently use) */ | |
1da177e4 | 2934 | priv->current_BSS = 0; |
4d791aad | 2935 | for (i = 0; i < priv->BSS_list_entries; i++) { |
1da177e4 | 2936 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
4d791aad | 2937 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
1da177e4 LT |
2938 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
2939 | !(priv->BSSinfo[i].channel & 0x80)) { | |
2940 | max_rssi = priv->BSSinfo[i].RSSI; | |
2941 | priv->current_BSS = max_index = i; | |
2942 | } | |
1da177e4 LT |
2943 | } |
2944 | return max_index; | |
2945 | } | |
4d791aad CP |
2946 | |
2947 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2948 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
2949 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && | |
2950 | priv->operating_mode == priv->BSSinfo[i].BSStype && | |
2951 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { | |
2952 | if (priv->BSSinfo[i].RSSI >= max_rssi) { | |
2953 | max_rssi = priv->BSSinfo[i].RSSI; | |
2954 | max_index = i; | |
2955 | } | |
2956 | } | |
2957 | } | |
2958 | return max_index; | |
2959 | } | |
2960 | ||
4d791aad CP |
2961 | static void store_bss_info(struct atmel_private *priv, |
2962 | struct ieee80211_hdr_4addr *header, u16 capability, | |
2963 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, | |
2964 | u8 *ssid, int is_beacon) | |
1da177e4 | 2965 | { |
4861dd79 | 2966 | u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3; |
1da177e4 | 2967 | int i, index; |
4d791aad CP |
2968 | |
2969 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) | |
2970 | if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0) | |
1da177e4 LT |
2971 | index = i; |
2972 | ||
4d791aad | 2973 | /* If we process a probe and an entry from this BSS exists |
1da177e4 LT |
2974 | we will update the BSS entry with the info from this BSS. |
2975 | If we process a beacon we will only update RSSI */ | |
2976 | ||
2977 | if (index == -1) { | |
2978 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) | |
2979 | return; | |
2980 | index = priv->BSS_list_entries++; | |
2981 | memcpy(priv->BSSinfo[index].BSSID, bss, 6); | |
2982 | priv->BSSinfo[index].RSSI = rssi; | |
2983 | } else { | |
2984 | if (rssi > priv->BSSinfo[index].RSSI) | |
2985 | priv->BSSinfo[index].RSSI = rssi; | |
2986 | if (is_beacon) | |
2987 | return; | |
2988 | } | |
2989 | ||
2990 | priv->BSSinfo[index].channel = channel; | |
2991 | priv->BSSinfo[index].beacon_period = beacon_period; | |
4861dd79 | 2992 | priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY; |
1da177e4 LT |
2993 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
2994 | priv->BSSinfo[index].SSIDsize = ssid_len; | |
2995 | ||
4861dd79 | 2996 | if (capability & WLAN_CAPABILITY_IBSS) |
1da177e4 | 2997 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
4861dd79 | 2998 | else if (capability & WLAN_CAPABILITY_ESS) |
1da177e4 | 2999 | priv->BSSinfo[index].BSStype =IW_MODE_INFRA; |
4d791aad | 3000 | |
4861dd79 | 3001 | priv->BSSinfo[index].preamble = capability & MFIE_TYPE_POWER_CONSTRAINT ? |
1da177e4 LT |
3002 | SHORT_PREAMBLE : LONG_PREAMBLE; |
3003 | } | |
3004 | ||
3005 | static void authenticate(struct atmel_private *priv, u16 frame_len) | |
3006 | { | |
3007 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; | |
3008 | u16 status = le16_to_cpu(auth->status); | |
3009 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); | |
b16a228d | 3010 | u16 system = le16_to_cpu(auth->alg); |
4d791aad | 3011 | |
4861dd79 | 3012 | if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) { |
1da177e4 LT |
3013 | /* no WEP */ |
3014 | if (priv->station_was_associated) { | |
3015 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3016 | send_association_request(priv, 1); | |
3017 | return; | |
3018 | } else { | |
3019 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3020 | send_association_request(priv, 0); | |
3021 | return; | |
4d791aad | 3022 | } |
1da177e4 | 3023 | } |
4d791aad | 3024 | |
4861dd79 | 3025 | if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) { |
73451379 | 3026 | int should_associate = 0; |
1da177e4 LT |
3027 | /* WEP */ |
3028 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) | |
3029 | return; | |
4d791aad | 3030 | |
4861dd79 | 3031 | if (system == WLAN_AUTH_OPEN) { |
73451379 DW |
3032 | if (trans_seq_no == 0x0002) { |
3033 | should_associate = 1; | |
3034 | } | |
4861dd79 | 3035 | } else if (system == WLAN_AUTH_SHARED_KEY) { |
73451379 | 3036 | if (trans_seq_no == 0x0002 && |
4861dd79 | 3037 | auth->el_id == MFIE_TYPE_CHALLENGE) { |
73451379 DW |
3038 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
3039 | return; | |
3040 | } else if (trans_seq_no == 0x0004) { | |
3041 | should_associate = 1; | |
3042 | } | |
1da177e4 | 3043 | } |
4d791aad | 3044 | |
73451379 | 3045 | if (should_associate) { |
1da177e4 LT |
3046 | if(priv->station_was_associated) { |
3047 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3048 | send_association_request(priv, 1); | |
3049 | return; | |
3050 | } else { | |
3051 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3052 | send_association_request(priv, 0); | |
3053 | return; | |
4d791aad | 3054 | } |
1da177e4 | 3055 | } |
4d791aad CP |
3056 | } |
3057 | ||
73451379 | 3058 | if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { |
b16a228d | 3059 | /* Do opensystem first, then try sharedkey */ |
73451379 | 3060 | if (system == WLAN_AUTH_OPEN) { |
b16a228d | 3061 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
73451379 DW |
3062 | priv->exclude_unencrypted = 1; |
3063 | send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0); | |
3064 | return; | |
b16a228d SK |
3065 | } else if (priv->connect_to_any_BSS) { |
3066 | int bss_index; | |
4d791aad | 3067 | |
b16a228d | 3068 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
4d791aad | 3069 | |
b16a228d SK |
3070 | if ((bss_index = retrieve_bss(priv)) != -1) { |
3071 | atmel_join_bss(priv, bss_index); | |
3072 | return; | |
3073 | } | |
1da177e4 LT |
3074 | } |
3075 | } | |
4d791aad | 3076 | |
1da177e4 LT |
3077 | priv->AuthenticationRequestRetryCnt = 0; |
3078 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3079 | priv->station_is_associated = 0; | |
3080 | } | |
3081 | ||
3082 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) | |
3083 | { | |
3084 | struct ass_resp_format { | |
3085 | u16 capability; | |
3086 | u16 status; | |
3087 | u16 ass_id; | |
3088 | u8 el_id; | |
3089 | u8 length; | |
3090 | u8 rates[4]; | |
3091 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; | |
4d791aad CP |
3092 | |
3093 | u16 status = le16_to_cpu(ass_resp->status); | |
1da177e4 | 3094 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
4d791aad CP |
3095 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
3096 | ||
9a6301c1 DW |
3097 | union iwreq_data wrqu; |
3098 | ||
1da177e4 LT |
3099 | if (frame_len < 8 + rates_len) |
3100 | return; | |
4d791aad | 3101 | |
4861dd79 DW |
3102 | if (status == WLAN_STATUS_SUCCESS) { |
3103 | if (subtype == IEEE80211_STYPE_ASSOC_RESP) | |
1da177e4 LT |
3104 | priv->AssociationRequestRetryCnt = 0; |
3105 | else | |
3106 | priv->ReAssociationRequestRetryCnt = 0; | |
4d791aad CP |
3107 | |
3108 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3109 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); | |
3110 | atmel_set_mib(priv, Phy_Mib_Type, | |
3111 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); | |
1da177e4 LT |
3112 | if (priv->power_mode == 0) { |
3113 | priv->listen_interval = 1; | |
4d791aad CP |
3114 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3115 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3116 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3117 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 LT |
3118 | } else { |
3119 | priv->listen_interval = 2; | |
4d791aad CP |
3120 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3121 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); | |
3122 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3123 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); | |
1da177e4 | 3124 | } |
4d791aad | 3125 | |
1da177e4 LT |
3126 | priv->station_is_associated = 1; |
3127 | priv->station_was_associated = 1; | |
3128 | atmel_enter_state(priv, STATION_STATE_READY); | |
9a6301c1 DW |
3129 | |
3130 | /* Send association event to userspace */ | |
3131 | wrqu.data.length = 0; | |
3132 | wrqu.data.flags = 0; | |
3133 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); | |
3134 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
3135 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
3136 | ||
1da177e4 LT |
3137 | return; |
3138 | } | |
4d791aad | 3139 | |
4861dd79 DW |
3140 | if (subtype == IEEE80211_STYPE_ASSOC_RESP && |
3141 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3142 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3143 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3144 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3145 | priv->AssociationRequestRetryCnt++; | |
3146 | send_association_request(priv, 0); | |
3147 | return; | |
3148 | } | |
4d791aad | 3149 | |
4861dd79 DW |
3150 | if (subtype == IEEE80211_STYPE_REASSOC_RESP && |
3151 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3152 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3153 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3154 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3155 | priv->ReAssociationRequestRetryCnt++; | |
3156 | send_association_request(priv, 1); | |
3157 | return; | |
3158 | } | |
4d791aad | 3159 | |
1da177e4 LT |
3160 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
3161 | priv->station_is_associated = 0; | |
4d791aad CP |
3162 | |
3163 | if (priv->connect_to_any_BSS) { | |
1da177e4 LT |
3164 | int bss_index; |
3165 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3166 | |
3167 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 | 3168 | atmel_join_bss(priv, bss_index); |
1da177e4 LT |
3169 | } |
3170 | } | |
3171 | ||
3172 | void atmel_join_bss(struct atmel_private *priv, int bss_index) | |
3173 | { | |
3174 | struct bss_info *bss = &priv->BSSinfo[bss_index]; | |
3175 | ||
3176 | memcpy(priv->CurrentBSSID, bss->BSSID, 6); | |
3177 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); | |
3178 | ||
3179 | /* The WPA stuff cares about the current AP address */ | |
3180 | if (priv->use_wpa) | |
3181 | build_wpa_mib(priv); | |
4d791aad | 3182 | |
1da177e4 LT |
3183 | /* When switching to AdHoc turn OFF Power Save if needed */ |
3184 | ||
3185 | if (bss->BSStype == IW_MODE_ADHOC && | |
3186 | priv->operating_mode != IW_MODE_ADHOC && | |
3187 | priv->power_mode) { | |
3188 | priv->power_mode = 0; | |
3189 | priv->listen_interval = 1; | |
4d791aad CP |
3190 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3191 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3192 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3193 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 | 3194 | } |
4d791aad | 3195 | |
1da177e4 | 3196 | priv->operating_mode = bss->BSStype; |
4d791aad | 3197 | priv->channel = bss->channel & 0x7f; |
1da177e4 | 3198 | priv->beacon_period = bss->beacon_period; |
4d791aad | 3199 | |
1da177e4 LT |
3200 | if (priv->preamble != bss->preamble) { |
3201 | priv->preamble = bss->preamble; | |
4d791aad CP |
3202 | atmel_set_mib8(priv, Local_Mib_Type, |
3203 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); | |
1da177e4 | 3204 | } |
4d791aad | 3205 | |
1da177e4 LT |
3206 | if (!priv->wep_is_on && bss->UsingWEP) { |
3207 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3208 | priv->station_is_associated = 0; | |
3209 | return; | |
3210 | } | |
4d791aad | 3211 | |
1da177e4 LT |
3212 | if (priv->wep_is_on && !bss->UsingWEP) { |
3213 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3214 | priv->station_is_associated = 0; | |
3215 | return; | |
3216 | } | |
3217 | ||
3218 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 3219 | |
1da177e4 LT |
3220 | if (priv->operating_mode == IW_MODE_INFRA) |
3221 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 3222 | else |
1da177e4 LT |
3223 | join(priv, BSS_TYPE_AD_HOC); |
3224 | } | |
3225 | ||
1da177e4 LT |
3226 | static void restart_search(struct atmel_private *priv) |
3227 | { | |
3228 | int bss_index; | |
4d791aad | 3229 | |
1da177e4 LT |
3230 | if (!priv->connect_to_any_BSS) { |
3231 | atmel_scan(priv, 1); | |
3232 | } else { | |
3233 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3234 | |
3235 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 LT |
3236 | atmel_join_bss(priv, bss_index); |
3237 | else | |
3238 | atmel_scan(priv, 0); | |
4d791aad CP |
3239 | } |
3240 | } | |
1da177e4 LT |
3241 | |
3242 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) | |
3243 | { | |
3244 | u8 old = priv->wstats.qual.level; | |
3245 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ | |
3246 | ||
3247 | switch (priv->firmware_type) { | |
3248 | case ATMEL_FW_TYPE_502E: | |
3249 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ | |
3250 | break; | |
3251 | default: | |
3252 | break; | |
3253 | } | |
3254 | ||
3255 | rssi = rssi * 100 / max_rssi; | |
4d791aad CP |
3256 | if ((rssi + old) % 2) |
3257 | priv->wstats.qual.level = (rssi + old) / 2 + 1; | |
1da177e4 | 3258 | else |
4d791aad | 3259 | priv->wstats.qual.level = (rssi + old) / 2; |
1da177e4 LT |
3260 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
3261 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; | |
3262 | } | |
3263 | ||
3264 | static void atmel_smooth_qual(struct atmel_private *priv) | |
3265 | { | |
4d791aad | 3266 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
1da177e4 LT |
3267 | while (time_diff--) { |
3268 | priv->last_qual += HZ; | |
4d791aad CP |
3269 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
3270 | priv->wstats.qual.qual += | |
1da177e4 LT |
3271 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
3272 | priv->beacons_this_sec = 0; | |
3273 | } | |
3274 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; | |
3275 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; | |
3276 | } | |
3277 | ||
3278 | /* deals with incoming managment frames. */ | |
4d791aad CP |
3279 | static void atmel_management_frame(struct atmel_private *priv, |
3280 | struct ieee80211_hdr_4addr *header, | |
3281 | u16 frame_len, u8 rssi) | |
1da177e4 LT |
3282 | { |
3283 | u16 subtype; | |
4d791aad CP |
3284 | |
3285 | subtype = le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_STYPE; | |
3286 | switch (subtype) { | |
4861dd79 DW |
3287 | case IEEE80211_STYPE_BEACON: |
3288 | case IEEE80211_STYPE_PROBE_RESP: | |
4d791aad | 3289 | |
1da177e4 LT |
3290 | /* beacon frame has multiple variable-length fields - |
3291 | never let an engineer loose with a data structure design. */ | |
3292 | { | |
3293 | struct beacon_format { | |
3294 | u64 timestamp; | |
3295 | u16 interval; | |
3296 | u16 capability; | |
3297 | u8 ssid_el_id; | |
3298 | u8 ssid_length; | |
3299 | /* ssid here */ | |
3300 | u8 rates_el_id; | |
3301 | u8 rates_length; | |
3302 | /* rates here */ | |
3303 | u8 ds_el_id; | |
3304 | u8 ds_length; | |
3305 | /* ds here */ | |
3306 | } *beacon = (struct beacon_format *)priv->rx_buf; | |
4d791aad | 3307 | |
1da177e4 LT |
3308 | u8 channel, rates_length, ssid_length; |
3309 | u64 timestamp = le64_to_cpu(beacon->timestamp); | |
3310 | u16 beacon_interval = le16_to_cpu(beacon->interval); | |
3311 | u16 capability = le16_to_cpu(beacon->capability); | |
3312 | u8 *beaconp = priv->rx_buf; | |
3313 | ssid_length = beacon->ssid_length; | |
3314 | /* this blows chunks. */ | |
4d791aad | 3315 | if (frame_len < 14 || frame_len < ssid_length + 15) |
1da177e4 LT |
3316 | return; |
3317 | rates_length = beaconp[beacon->ssid_length + 15]; | |
3318 | if (frame_len < ssid_length + rates_length + 18) | |
3319 | return; | |
3320 | if (ssid_length > MAX_SSID_LENGTH) | |
3321 | return; | |
3322 | channel = beaconp[ssid_length + rates_length + 18]; | |
4d791aad | 3323 | |
1da177e4 LT |
3324 | if (priv->station_state == STATION_STATE_READY) { |
3325 | smooth_rssi(priv, rssi); | |
4d791aad | 3326 | if (is_frame_from_current_bss(priv, header)) { |
1da177e4 LT |
3327 | priv->beacons_this_sec++; |
3328 | atmel_smooth_qual(priv); | |
3329 | if (priv->last_beacon_timestamp) { | |
3330 | /* Note truncate this to 32 bits - kernel can't divide a long long */ | |
3331 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; | |
3332 | int beacons = beacon_delay / (beacon_interval * 1000); | |
3333 | if (beacons > 1) | |
3334 | priv->wstats.miss.beacon += beacons - 1; | |
3335 | } | |
3336 | priv->last_beacon_timestamp = timestamp; | |
3337 | handle_beacon_probe(priv, capability, channel); | |
3338 | } | |
3339 | } | |
4d791aad CP |
3340 | |
3341 | if (priv->station_state == STATION_STATE_SCANNING) | |
3342 | store_bss_info(priv, header, capability, | |
3343 | beacon_interval, channel, rssi, | |
3344 | ssid_length, | |
3345 | &beacon->rates_el_id, | |
4861dd79 | 3346 | subtype == IEEE80211_STYPE_BEACON); |
1da177e4 LT |
3347 | } |
3348 | break; | |
4d791aad | 3349 | |
4861dd79 | 3350 | case IEEE80211_STYPE_AUTH: |
1da177e4 LT |
3351 | |
3352 | if (priv->station_state == STATION_STATE_AUTHENTICATING) | |
3353 | authenticate(priv, frame_len); | |
4d791aad | 3354 | |
1da177e4 | 3355 | break; |
4d791aad | 3356 | |
4861dd79 DW |
3357 | case IEEE80211_STYPE_ASSOC_RESP: |
3358 | case IEEE80211_STYPE_REASSOC_RESP: | |
4d791aad CP |
3359 | |
3360 | if (priv->station_state == STATION_STATE_ASSOCIATING || | |
1da177e4 LT |
3361 | priv->station_state == STATION_STATE_REASSOCIATING) |
3362 | associate(priv, frame_len, subtype); | |
4d791aad | 3363 | |
1da177e4 LT |
3364 | break; |
3365 | ||
4861dd79 | 3366 | case IEEE80211_STYPE_DISASSOC: |
4d791aad CP |
3367 | if (priv->station_is_associated && |
3368 | priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
3369 | is_frame_from_current_bss(priv, header)) { |
3370 | priv->station_was_associated = 0; | |
3371 | priv->station_is_associated = 0; | |
4d791aad | 3372 | |
1da177e4 LT |
3373 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
3374 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3375 | } | |
4d791aad | 3376 | |
1da177e4 LT |
3377 | break; |
3378 | ||
4861dd79 | 3379 | case IEEE80211_STYPE_DEAUTH: |
1da177e4 LT |
3380 | if (priv->operating_mode == IW_MODE_INFRA && |
3381 | is_frame_from_current_bss(priv, header)) { | |
3382 | priv->station_was_associated = 0; | |
3383 | ||
3384 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
3385 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3386 | } | |
4d791aad | 3387 | |
1da177e4 LT |
3388 | break; |
3389 | } | |
3390 | } | |
3391 | ||
3392 | /* run when timer expires */ | |
3393 | static void atmel_management_timer(u_long a) | |
3394 | { | |
4d791aad CP |
3395 | struct net_device *dev = (struct net_device *) a; |
3396 | struct atmel_private *priv = netdev_priv(dev); | |
3397 | unsigned long flags; | |
1da177e4 | 3398 | |
4d791aad CP |
3399 | /* Check if the card has been yanked. */ |
3400 | if (priv->card && priv->present_callback && | |
3401 | !(*priv->present_callback)(priv->card)) | |
3402 | return; | |
1da177e4 | 3403 | |
4d791aad CP |
3404 | spin_lock_irqsave(&priv->irqlock, flags); |
3405 | ||
3406 | switch (priv->station_state) { | |
1da177e4 | 3407 | |
4d791aad CP |
3408 | case STATION_STATE_AUTHENTICATING: |
3409 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { | |
3410 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3411 | priv->station_is_associated = 0; | |
3412 | priv->AuthenticationRequestRetryCnt = 0; | |
3413 | restart_search(priv); | |
3414 | } else { | |
4861dd79 | 3415 | int auth = WLAN_AUTH_OPEN; |
4d791aad CP |
3416 | priv->AuthenticationRequestRetryCnt++; |
3417 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
3418 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
73451379 | 3419 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3420 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3421 | send_authentication_request(priv, auth, NULL, 0); |
4d791aad | 3422 | } |
1da177e4 | 3423 | break; |
4d791aad CP |
3424 | |
3425 | case STATION_STATE_ASSOCIATING: | |
3426 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3427 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3428 | priv->station_is_associated = 0; | |
3429 | priv->AssociationRequestRetryCnt = 0; | |
3430 | restart_search(priv); | |
3431 | } else { | |
3432 | priv->AssociationRequestRetryCnt++; | |
3433 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3434 | send_association_request(priv, 0); | |
3435 | } | |
1da177e4 | 3436 | break; |
4d791aad CP |
3437 | |
3438 | case STATION_STATE_REASSOCIATING: | |
3439 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3440 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3441 | priv->station_is_associated = 0; | |
3442 | priv->ReAssociationRequestRetryCnt = 0; | |
3443 | restart_search(priv); | |
3444 | } else { | |
3445 | priv->ReAssociationRequestRetryCnt++; | |
3446 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3447 | send_association_request(priv, 1); | |
3448 | } | |
3449 | break; | |
3450 | ||
3451 | default: | |
3452 | break; | |
3453 | } | |
3454 | ||
3455 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
1da177e4 | 3456 | } |
4d791aad | 3457 | |
1da177e4 LT |
3458 | static void atmel_command_irq(struct atmel_private *priv) |
3459 | { | |
3460 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
3461 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); | |
3462 | int fast_scan; | |
3a1af6ff | 3463 | union iwreq_data wrqu; |
4d791aad CP |
3464 | |
3465 | if (status == CMD_STATUS_IDLE || | |
1da177e4 LT |
3466 | status == CMD_STATUS_IN_PROGRESS) |
3467 | return; | |
3468 | ||
3469 | switch (command){ | |
3470 | ||
3471 | case CMD_Start: | |
3472 | if (status == CMD_STATUS_COMPLETE) { | |
3473 | priv->station_was_associated = priv->station_is_associated; | |
3474 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, | |
3475 | (u8 *)priv->CurrentBSSID, 6); | |
3476 | atmel_enter_state(priv, STATION_STATE_READY); | |
4d791aad | 3477 | } |
1da177e4 | 3478 | break; |
4d791aad | 3479 | |
1da177e4 LT |
3480 | case CMD_Scan: |
3481 | fast_scan = priv->fast_scan; | |
3482 | priv->fast_scan = 0; | |
4d791aad | 3483 | |
1da177e4 LT |
3484 | if (status != CMD_STATUS_COMPLETE) { |
3485 | atmel_scan(priv, 1); | |
3486 | } else { | |
3487 | int bss_index = retrieve_bss(priv); | |
3a1af6ff | 3488 | int notify_scan_complete = 1; |
1da177e4 LT |
3489 | if (bss_index != -1) { |
3490 | atmel_join_bss(priv, bss_index); | |
4d791aad | 3491 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
1da177e4 LT |
3492 | priv->SSID_size != 0) { |
3493 | start(priv, BSS_TYPE_AD_HOC); | |
3494 | } else { | |
3495 | priv->fast_scan = !fast_scan; | |
3496 | atmel_scan(priv, 1); | |
3a1af6ff | 3497 | notify_scan_complete = 0; |
1da177e4 LT |
3498 | } |
3499 | priv->site_survey_state = SITE_SURVEY_COMPLETED; | |
3a1af6ff DW |
3500 | if (notify_scan_complete) { |
3501 | wrqu.data.length = 0; | |
3502 | wrqu.data.flags = 0; | |
3503 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
3504 | } | |
1da177e4 LT |
3505 | } |
3506 | break; | |
4d791aad | 3507 | |
1da177e4 LT |
3508 | case CMD_SiteSurvey: |
3509 | priv->fast_scan = 0; | |
4d791aad | 3510 | |
1da177e4 LT |
3511 | if (status != CMD_STATUS_COMPLETE) |
3512 | return; | |
4d791aad | 3513 | |
1da177e4 LT |
3514 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
3515 | if (priv->station_is_associated) { | |
4d791aad | 3516 | atmel_enter_state(priv, STATION_STATE_READY); |
3a1af6ff DW |
3517 | wrqu.data.length = 0; |
3518 | wrqu.data.flags = 0; | |
3519 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
1da177e4 LT |
3520 | } else { |
3521 | atmel_scan(priv, 1); | |
3522 | } | |
3523 | break; | |
3524 | ||
3525 | case CMD_Join: | |
3526 | if (status == CMD_STATUS_COMPLETE) { | |
3527 | if (priv->operating_mode == IW_MODE_ADHOC) { | |
3528 | priv->station_was_associated = priv->station_is_associated; | |
3529 | atmel_enter_state(priv, STATION_STATE_READY); | |
3530 | } else { | |
4861dd79 | 3531 | int auth = WLAN_AUTH_OPEN; |
1da177e4 LT |
3532 | priv->AuthenticationRequestRetryCnt = 0; |
3533 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); | |
4d791aad | 3534 | |
1da177e4 LT |
3535 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
3536 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
73451379 | 3537 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3538 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3539 | send_authentication_request(priv, auth, NULL, 0); |
1da177e4 LT |
3540 | } |
3541 | return; | |
3542 | } | |
4d791aad | 3543 | |
1da177e4 | 3544 | atmel_scan(priv, 1); |
1da177e4 LT |
3545 | } |
3546 | } | |
3547 | ||
3548 | static int atmel_wakeup_firmware(struct atmel_private *priv) | |
3549 | { | |
3550 | struct host_info_struct *iface = &priv->host_info; | |
3551 | u16 mr1, mr3; | |
3552 | int i; | |
3553 | ||
3554 | if (priv->card_type == CARD_TYPE_SPI_FLASH) | |
3555 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
4d791aad | 3556 | |
1da177e4 LT |
3557 | /* wake up on-board processor */ |
3558 | atmel_clear_gcr(priv->dev, 0x0040); | |
3559 | atmel_write16(priv->dev, BSR, BSS_SRAM); | |
4d791aad | 3560 | |
1da177e4 LT |
3561 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
3562 | mdelay(100); | |
3563 | ||
3564 | /* and wait for it */ | |
4d791aad | 3565 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
1da177e4 LT |
3566 | mr1 = atmel_read16(priv->dev, MR1); |
3567 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3568 | |
3569 | if (mr3 & MAC_BOOT_COMPLETE) | |
1da177e4 LT |
3570 | break; |
3571 | if (mr1 & MAC_BOOT_COMPLETE && | |
3572 | priv->bus_type == BUS_TYPE_PCCARD) | |
3573 | break; | |
3574 | } | |
3575 | ||
3576 | if (i == 0) { | |
3577 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); | |
3578 | return 0; | |
3579 | } | |
4d791aad | 3580 | |
1da177e4 LT |
3581 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
3582 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); | |
3583 | return 0; | |
3584 | } | |
4d791aad CP |
3585 | |
3586 | /* now check for completion of MAC initialization through | |
3587 | the FunCtrl field of the IFACE, poll MR1 to detect completion of | |
3588 | MAC initialization, check completion status, set interrupt mask, | |
3589 | enables interrupts and calls Tx and Rx initialization functions */ | |
3590 | ||
1da177e4 | 3591 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE); |
4d791aad CP |
3592 | |
3593 | for (i = LOOP_RETRY_LIMIT; i; i--) { | |
1da177e4 LT |
3594 | mr1 = atmel_read16(priv->dev, MR1); |
3595 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3596 | |
3597 | if (mr3 & MAC_INIT_COMPLETE) | |
1da177e4 LT |
3598 | break; |
3599 | if (mr1 & MAC_INIT_COMPLETE && | |
3600 | priv->bus_type == BUS_TYPE_PCCARD) | |
3601 | break; | |
3602 | } | |
4d791aad | 3603 | |
1da177e4 | 3604 | if (i == 0) { |
4d791aad CP |
3605 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
3606 | priv->dev->name); | |
1da177e4 LT |
3607 | return 0; |
3608 | } | |
4d791aad | 3609 | |
1da177e4 LT |
3610 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
3611 | if ((mr3 & MAC_INIT_COMPLETE) && | |
3612 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { | |
3613 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); | |
3614 | return 0; | |
3615 | } | |
3616 | if ((mr1 & MAC_INIT_COMPLETE) && | |
3617 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { | |
3618 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); | |
3619 | return 0; | |
3620 | } | |
3621 | ||
4d791aad | 3622 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
1da177e4 | 3623 | priv->host_info_base, sizeof(*iface)); |
4d791aad | 3624 | |
1da177e4 LT |
3625 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
3626 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); | |
3627 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); | |
3628 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); | |
3629 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); | |
3630 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); | |
3631 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); | |
3632 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); | |
3633 | iface->build_version = le16_to_cpu(iface->build_version); | |
3634 | iface->command_pos = le16_to_cpu(iface->command_pos); | |
3635 | iface->major_version = le16_to_cpu(iface->major_version); | |
3636 | iface->minor_version = le16_to_cpu(iface->minor_version); | |
3637 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); | |
3638 | iface->mac_status = le16_to_cpu(iface->mac_status); | |
3639 | ||
3640 | return 1; | |
3641 | } | |
3642 | ||
3643 | /* determine type of memory and MAC address */ | |
3644 | static int probe_atmel_card(struct net_device *dev) | |
3645 | { | |
3646 | int rc = 0; | |
3647 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 3648 | |
1da177e4 | 3649 | /* reset pccard */ |
4d791aad | 3650 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3651 | atmel_write16(dev, GCR, 0x0060); |
4d791aad | 3652 | |
1da177e4 LT |
3653 | atmel_write16(dev, GCR, 0x0040); |
3654 | mdelay(500); | |
4d791aad | 3655 | |
1da177e4 | 3656 | if (atmel_read16(dev, MR2) == 0) { |
4d791aad | 3657 | /* No stored firmware so load a small stub which just |
1da177e4 LT |
3658 | tells us the MAC address */ |
3659 | int i; | |
3660 | priv->card_type = CARD_TYPE_EEPROM; | |
3661 | atmel_write16(dev, BSR, BSS_IRAM); | |
3662 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); | |
3663 | atmel_set_gcr(dev, GCR_REMAP); | |
3664 | atmel_clear_gcr(priv->dev, 0x0040); | |
3665 | atmel_write16(dev, BSR, BSS_SRAM); | |
4d791aad | 3666 | for (i = LOOP_RETRY_LIMIT; i; i--) |
1da177e4 LT |
3667 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
3668 | break; | |
3669 | if (i == 0) { | |
3670 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); | |
3671 | } else { | |
3672 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); | |
3673 | /* got address, now squash it again until the network | |
3674 | interface is opened */ | |
4d791aad | 3675 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3676 | atmel_write16(dev, GCR, 0x0060); |
3677 | atmel_write16(dev, GCR, 0x0040); | |
3678 | rc = 1; | |
3679 | } | |
3680 | } else if (atmel_read16(dev, MR4) == 0) { | |
3681 | /* Mac address easy in this case. */ | |
3682 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; | |
4d791aad | 3683 | atmel_write16(dev, BSR, 1); |
1da177e4 LT |
3684 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
3685 | atmel_write16(dev, BSR, 0x200); | |
3686 | rc = 1; | |
3687 | } else { | |
3688 | /* Standard firmware in flash, boot it up and ask | |
3689 | for the Mac Address */ | |
3690 | priv->card_type = CARD_TYPE_SPI_FLASH; | |
3691 | if (atmel_wakeup_firmware(priv)) { | |
3692 | atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6); | |
4d791aad | 3693 | |
1da177e4 LT |
3694 | /* got address, now squash it again until the network |
3695 | interface is opened */ | |
4d791aad | 3696 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3697 | atmel_write16(dev, GCR, 0x0060); |
3698 | atmel_write16(dev, GCR, 0x0040); | |
3699 | rc = 1; | |
3700 | } | |
3701 | } | |
4d791aad | 3702 | |
1da177e4 LT |
3703 | if (rc) { |
3704 | if (dev->dev_addr[0] == 0xFF) { | |
3705 | u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00}; | |
3706 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); | |
3707 | memcpy(dev->dev_addr, default_mac, 6); | |
3708 | } | |
1da177e4 | 3709 | } |
4d791aad | 3710 | |
1da177e4 LT |
3711 | return rc; |
3712 | } | |
3713 | ||
1da177e4 LT |
3714 | /* Move the encyption information on the MIB structure. |
3715 | This routine is for the pre-WPA firmware: later firmware has | |
3716 | a different format MIB and a different routine. */ | |
4d791aad | 3717 | static void build_wep_mib(struct atmel_private *priv) |
1da177e4 LT |
3718 | { |
3719 | struct { /* NB this is matched to the hardware, don't change. */ | |
4d791aad | 3720 | u8 wep_is_on; |
1da177e4 LT |
3721 | u8 default_key; /* 0..3 */ |
3722 | u8 reserved; | |
3723 | u8 exclude_unencrypted; | |
4d791aad | 3724 | |
1da177e4 LT |
3725 | u32 WEPICV_error_count; |
3726 | u32 WEP_excluded_count; | |
4d791aad | 3727 | |
1da177e4 | 3728 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
4d791aad CP |
3729 | u8 encryption_level; /* 0, 1, 2 */ |
3730 | u8 reserved2[3]; | |
1da177e4 LT |
3731 | } mib; |
3732 | int i; | |
3733 | ||
3734 | mib.wep_is_on = priv->wep_is_on; | |
3735 | if (priv->wep_is_on) { | |
3736 | if (priv->wep_key_len[priv->default_key] > 5) | |
3737 | mib.encryption_level = 2; | |
3738 | else | |
4d791aad | 3739 | mib.encryption_level = 1; |
1da177e4 LT |
3740 | } else { |
3741 | mib.encryption_level = 0; | |
3742 | } | |
3743 | ||
3744 | mib.default_key = priv->default_key; | |
3745 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
4d791aad CP |
3746 | |
3747 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) | |
1da177e4 | 3748 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
4d791aad | 3749 | |
1da177e4 LT |
3750 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3751 | } | |
3752 | ||
3753 | static void build_wpa_mib(struct atmel_private *priv) | |
3754 | { | |
4d791aad | 3755 | /* This is for the later (WPA enabled) firmware. */ |
1da177e4 LT |
3756 | |
3757 | struct { /* NB this is matched to the hardware, don't change. */ | |
3758 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
3759 | u8 receiver_address[6]; | |
4d791aad | 3760 | u8 wep_is_on; |
1da177e4 LT |
3761 | u8 default_key; /* 0..3 */ |
3762 | u8 group_key; | |
3763 | u8 exclude_unencrypted; | |
3764 | u8 encryption_type; | |
3765 | u8 reserved; | |
4d791aad | 3766 | |
1da177e4 LT |
3767 | u32 WEPICV_error_count; |
3768 | u32 WEP_excluded_count; | |
4d791aad | 3769 | |
1da177e4 LT |
3770 | u8 key_RSC[4][8]; |
3771 | } mib; | |
4d791aad | 3772 | |
1da177e4 LT |
3773 | int i; |
3774 | ||
3775 | mib.wep_is_on = priv->wep_is_on; | |
3776 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
3777 | memcpy(mib.receiver_address, priv->CurrentBSSID, 6); | |
4d791aad | 3778 | |
1da177e4 LT |
3779 | /* zero all the keys before adding in valid ones. */ |
3780 | memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value)); | |
4d791aad | 3781 | |
1da177e4 | 3782 | if (priv->wep_is_on) { |
4d791aad CP |
3783 | /* There's a comment in the Atmel code to the effect that this |
3784 | is only valid when still using WEP, it may need to be set to | |
3785 | something to use WPA */ | |
1da177e4 | 3786 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
4d791aad | 3787 | |
1da177e4 LT |
3788 | mib.default_key = mib.group_key = 255; |
3789 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { | |
3790 | if (priv->wep_key_len[i] > 0) { | |
3791 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); | |
3792 | if (i == priv->default_key) { | |
3793 | mib.default_key = i; | |
3794 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; | |
4d791aad | 3795 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite; |
1da177e4 LT |
3796 | } else { |
3797 | mib.group_key = i; | |
3798 | priv->group_cipher_suite = priv->pairwise_cipher_suite; | |
3799 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; | |
4d791aad | 3800 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite; |
1da177e4 LT |
3801 | } |
3802 | } | |
3803 | } | |
3804 | if (mib.default_key == 255) | |
3805 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; | |
3806 | if (mib.group_key == 255) | |
3807 | mib.group_key = mib.default_key; | |
4d791aad | 3808 | |
1da177e4 | 3809 | } |
4d791aad | 3810 | |
1da177e4 LT |
3811 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3812 | } | |
4d791aad CP |
3813 | |
3814 | static int reset_atmel_card(struct net_device *dev) | |
1da177e4 LT |
3815 | { |
3816 | /* do everything necessary to wake up the hardware, including | |
3817 | waiting for the lightning strike and throwing the knife switch.... | |
3818 | ||
4d791aad | 3819 | set all the Mib values which matter in the card to match |
1da177e4 LT |
3820 | their settings in the atmel_private structure. Some of these |
3821 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) | |
3822 | can only be changed by tearing down the world and coming back through | |
3823 | here. | |
3824 | ||
4d791aad CP |
3825 | This routine is also responsible for initialising some |
3826 | hardware-specific fields in the atmel_private structure, | |
1da177e4 LT |
3827 | including a copy of the firmware's hostinfo stucture |
3828 | which is the route into the rest of the firmare datastructures. */ | |
3829 | ||
3830 | struct atmel_private *priv = netdev_priv(dev); | |
3831 | u8 configuration; | |
9a6301c1 | 3832 | int old_state = priv->station_state; |
4d791aad | 3833 | |
1da177e4 LT |
3834 | /* data to add to the firmware names, in priority order |
3835 | this implemenents firmware versioning */ | |
4d791aad | 3836 | |
1da177e4 LT |
3837 | static char *firmware_modifier[] = { |
3838 | "-wpa", | |
3839 | "", | |
3840 | NULL | |
3841 | }; | |
4d791aad | 3842 | |
1da177e4 | 3843 | /* reset pccard */ |
4d791aad | 3844 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3845 | atmel_write16(priv->dev, GCR, 0x0060); |
4d791aad | 3846 | |
1da177e4 LT |
3847 | /* stop card , disable interrupts */ |
3848 | atmel_write16(priv->dev, GCR, 0x0040); | |
4d791aad | 3849 | |
1da177e4 LT |
3850 | if (priv->card_type == CARD_TYPE_EEPROM) { |
3851 | /* copy in firmware if needed */ | |
3852 | const struct firmware *fw_entry = NULL; | |
3853 | unsigned char *fw; | |
3854 | int len = priv->firmware_length; | |
3855 | if (!(fw = priv->firmware)) { | |
3856 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { | |
3857 | if (strlen(priv->firmware_id) == 0) { | |
3858 | printk(KERN_INFO | |
3859 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", | |
3860 | dev->name); | |
3861 | printk(KERN_INFO | |
4d791aad | 3862 | "%s: if not, use the firmware= module parameter.\n", |
1da177e4 LT |
3863 | dev->name); |
3864 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); | |
3865 | } | |
3866 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) != 0) { | |
4d791aad CP |
3867 | printk(KERN_ALERT |
3868 | "%s: firmware %s is missing, cannot continue.\n", | |
1da177e4 LT |
3869 | dev->name, priv->firmware_id); |
3870 | return 0; | |
3871 | } | |
3872 | } else { | |
3873 | int fw_index = 0; | |
3874 | int success = 0; | |
3875 | ||
3876 | /* get firmware filename entry based on firmware type ID */ | |
3877 | while (fw_table[fw_index].fw_type != priv->firmware_type | |
3878 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) | |
3879 | fw_index++; | |
4d791aad | 3880 | |
1da177e4 LT |
3881 | /* construct the actual firmware file name */ |
3882 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { | |
3883 | int i; | |
3884 | for (i = 0; firmware_modifier[i]; i++) { | |
3885 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, | |
3886 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); | |
3887 | priv->firmware_id[31] = '\0'; | |
3888 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { | |
3889 | success = 1; | |
3890 | break; | |
3891 | } | |
3892 | } | |
3893 | } | |
3894 | if (!success) { | |
4d791aad CP |
3895 | printk(KERN_ALERT |
3896 | "%s: firmware %s is missing, cannot start.\n", | |
1da177e4 LT |
3897 | dev->name, priv->firmware_id); |
3898 | priv->firmware_id[0] = '\0'; | |
4d791aad | 3899 | return 0; |
1da177e4 LT |
3900 | } |
3901 | } | |
4d791aad | 3902 | |
1da177e4 LT |
3903 | fw = fw_entry->data; |
3904 | len = fw_entry->size; | |
3905 | } | |
4d791aad | 3906 | |
1da177e4 LT |
3907 | if (len <= 0x6000) { |
3908 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3909 | atmel_copy_to_card(priv->dev, 0, fw, len); | |
3910 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
3911 | } else { | |
4d791aad | 3912 | /* Remap */ |
1da177e4 LT |
3913 | atmel_set_gcr(priv->dev, GCR_REMAP); |
3914 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3915 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); | |
3916 | atmel_write16(priv->dev, BSR, 0x2ff); | |
3917 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); | |
3918 | } | |
3919 | ||
3920 | if (fw_entry) | |
3921 | release_firmware(fw_entry); | |
3922 | } | |
3923 | ||
3924 | if (!atmel_wakeup_firmware(priv)) | |
3925 | return 0; | |
3926 | ||
3927 | /* Check the version and set the correct flag for wpa stuff, | |
3928 | old and new firmware is incompatible. | |
3929 | The pre-wpa 3com firmware reports major version 5, | |
3930 | the wpa 3com firmware is major version 4 and doesn't need | |
3931 | the 3com broken-ness filter. */ | |
3932 | priv->use_wpa = (priv->host_info.major_version == 4); | |
3933 | priv->radio_on_broken = (priv->host_info.major_version == 5); | |
4d791aad | 3934 | |
1da177e4 LT |
3935 | /* unmask all irq sources */ |
3936 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); | |
4d791aad | 3937 | |
1da177e4 LT |
3938 | /* int Tx system and enable Tx */ |
3939 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); | |
3940 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); | |
3941 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); | |
3942 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); | |
3943 | ||
4d791aad CP |
3944 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
3945 | priv->tx_desc_head = 0; | |
3946 | priv->tx_desc_tail = 0; | |
1da177e4 LT |
3947 | priv->tx_desc_previous = 0; |
3948 | priv->tx_free_mem = priv->host_info.tx_buff_size; | |
4d791aad CP |
3949 | priv->tx_buff_head = 0; |
3950 | priv->tx_buff_tail = 0; | |
3951 | ||
3952 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
3953 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 LT |
3954 | configuration | FUNC_CTRL_TxENABLE); |
3955 | ||
3956 | /* init Rx system and enable */ | |
3957 | priv->rx_desc_head = 0; | |
4d791aad CP |
3958 | |
3959 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
3960 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 | 3961 | configuration | FUNC_CTRL_RxENABLE); |
4d791aad | 3962 | |
1da177e4 | 3963 | if (!priv->radio_on_broken) { |
4d791aad | 3964 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
1da177e4 | 3965 | CMD_STATUS_REJECTED_RADIO_OFF) { |
4d791aad | 3966 | printk(KERN_INFO |
1da177e4 LT |
3967 | "%s: cannot turn the radio on. (Hey radio, you're beautiful!)\n", |
3968 | dev->name); | |
3969 | return 0; | |
3970 | } | |
3971 | } | |
4d791aad | 3972 | |
1da177e4 LT |
3973 | /* set up enough MIB values to run. */ |
3974 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); | |
3975 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); | |
3976 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); | |
3977 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); | |
3978 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); | |
3979 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); | |
3980 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble); | |
4d791aad | 3981 | atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS, |
1da177e4 LT |
3982 | priv->dev->dev_addr, 6); |
3983 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3984 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
3985 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); | |
3986 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); | |
3987 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); | |
3988 | if (priv->use_wpa) | |
3989 | build_wpa_mib(priv); | |
3990 | else | |
3991 | build_wep_mib(priv); | |
4d791aad | 3992 | |
9a6301c1 DW |
3993 | if (old_state == STATION_STATE_READY) |
3994 | { | |
3995 | union iwreq_data wrqu; | |
3996 | ||
3997 | wrqu.data.length = 0; | |
3998 | wrqu.data.flags = 0; | |
3999 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
4000 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
4001 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
4002 | } | |
4003 | ||
1da177e4 LT |
4004 | return 1; |
4005 | } | |
4006 | ||
4d791aad CP |
4007 | static void atmel_send_command(struct atmel_private *priv, int command, |
4008 | void *cmd, int cmd_size) | |
1da177e4 LT |
4009 | { |
4010 | if (cmd) | |
4d791aad | 4011 | atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET), |
1da177e4 | 4012 | cmd, cmd_size); |
4d791aad | 4013 | |
1da177e4 LT |
4014 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
4015 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); | |
4016 | } | |
4d791aad CP |
4017 | |
4018 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
4019 | void *cmd, int cmd_size) | |
1da177e4 LT |
4020 | { |
4021 | int i, status; | |
4d791aad | 4022 | |
1da177e4 | 4023 | atmel_send_command(priv, command, cmd, cmd_size); |
4d791aad | 4024 | |
1da177e4 LT |
4025 | for (i = 5000; i; i--) { |
4026 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
4d791aad | 4027 | if (status != CMD_STATUS_IDLE && |
1da177e4 LT |
4028 | status != CMD_STATUS_IN_PROGRESS) |
4029 | break; | |
4030 | udelay(20); | |
4031 | } | |
4d791aad | 4032 | |
1da177e4 LT |
4033 | if (i == 0) { |
4034 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); | |
4035 | status = CMD_STATUS_HOST_ERROR; | |
4d791aad | 4036 | } else { |
1da177e4 LT |
4037 | if (command != CMD_EnableRadio) |
4038 | status = CMD_STATUS_COMPLETE; | |
4039 | } | |
4d791aad | 4040 | |
1da177e4 LT |
4041 | return status; |
4042 | } | |
4043 | ||
4044 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) | |
4045 | { | |
4046 | struct get_set_mib m; | |
4047 | m.type = type; | |
4048 | m.size = 1; | |
4049 | m.index = index; | |
4050 | ||
4051 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4052 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); | |
4053 | } | |
4054 | ||
4055 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) | |
4056 | { | |
4057 | struct get_set_mib m; | |
4058 | m.type = type; | |
4059 | m.size = 1; | |
4060 | m.index = index; | |
4061 | m.data[0] = data; | |
4062 | ||
4063 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4064 | } | |
4065 | ||
4d791aad CP |
4066 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
4067 | u16 data) | |
1da177e4 LT |
4068 | { |
4069 | struct get_set_mib m; | |
4070 | m.type = type; | |
4071 | m.size = 2; | |
4072 | m.index = index; | |
4073 | m.data[0] = data; | |
4074 | m.data[1] = data >> 8; | |
4075 | ||
4076 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); | |
4077 | } | |
4078 | ||
4d791aad CP |
4079 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
4080 | u8 *data, int data_len) | |
1da177e4 LT |
4081 | { |
4082 | struct get_set_mib m; | |
4083 | m.type = type; | |
4084 | m.size = data_len; | |
4085 | m.index = index; | |
4086 | ||
4087 | if (data_len > MIB_MAX_DATA_BYTES) | |
4088 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4089 | |
1da177e4 LT |
4090 | memcpy(m.data, data, data_len); |
4091 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); | |
4092 | } | |
4093 | ||
4d791aad CP |
4094 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
4095 | u8 *data, int data_len) | |
1da177e4 LT |
4096 | { |
4097 | struct get_set_mib m; | |
4098 | m.type = type; | |
4099 | m.size = data_len; | |
4100 | m.index = index; | |
4d791aad | 4101 | |
1da177e4 LT |
4102 | if (data_len > MIB_MAX_DATA_BYTES) |
4103 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4104 | |
1da177e4 | 4105 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
4d791aad | 4106 | atmel_copy_to_host(priv->dev, data, |
1da177e4 LT |
4107 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
4108 | } | |
4109 | ||
4110 | static void atmel_writeAR(struct net_device *dev, u16 data) | |
4111 | { | |
4112 | int i; | |
4113 | outw(data, dev->base_addr + AR); | |
4114 | /* Address register appears to need some convincing..... */ | |
4d791aad | 4115 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
1da177e4 LT |
4116 | outw(data, dev->base_addr + AR); |
4117 | } | |
4118 | ||
4d791aad CP |
4119 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
4120 | unsigned char *src, u16 len) | |
1da177e4 LT |
4121 | { |
4122 | int i; | |
4123 | atmel_writeAR(dev, dest); | |
4124 | if (dest % 2) { | |
4125 | atmel_write8(dev, DR, *src); | |
4126 | src++; len--; | |
4127 | } | |
4128 | for (i = len; i > 1 ; i -= 2) { | |
4129 | u8 lb = *src++; | |
4130 | u8 hb = *src++; | |
4131 | atmel_write16(dev, DR, lb | (hb << 8)); | |
4132 | } | |
4133 | if (i) | |
4134 | atmel_write8(dev, DR, *src); | |
4135 | } | |
4136 | ||
4d791aad CP |
4137 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
4138 | u16 src, u16 len) | |
1da177e4 LT |
4139 | { |
4140 | int i; | |
4141 | atmel_writeAR(dev, src); | |
4142 | if (src % 2) { | |
4143 | *dest = atmel_read8(dev, DR); | |
4144 | dest++; len--; | |
4145 | } | |
4146 | for (i = len; i > 1 ; i -= 2) { | |
4147 | u16 hw = atmel_read16(dev, DR); | |
4148 | *dest++ = hw; | |
4149 | *dest++ = hw >> 8; | |
4150 | } | |
4151 | if (i) | |
4152 | *dest = atmel_read8(dev, DR); | |
4153 | } | |
4154 | ||
4155 | static void atmel_set_gcr(struct net_device *dev, u16 mask) | |
4156 | { | |
4157 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); | |
4158 | } | |
4159 | ||
4160 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) | |
4161 | { | |
4162 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); | |
4163 | } | |
4164 | ||
4165 | static int atmel_lock_mac(struct atmel_private *priv) | |
4166 | { | |
4167 | int i, j = 20; | |
4168 | retry: | |
4169 | for (i = 5000; i; i--) { | |
4170 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) | |
4171 | break; | |
4172 | udelay(20); | |
4173 | } | |
4d791aad CP |
4174 | |
4175 | if (!i) | |
4176 | return 0; /* timed out */ | |
4177 | ||
1da177e4 LT |
4178 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
4179 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { | |
4180 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad CP |
4181 | if (!j--) |
4182 | return 0; /* timed out */ | |
1da177e4 LT |
4183 | goto retry; |
4184 | } | |
4d791aad | 4185 | |
1da177e4 LT |
4186 | return 1; |
4187 | } | |
4188 | ||
4189 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) | |
4190 | { | |
4d791aad | 4191 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
4192 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
4193 | atmel_write16(priv->dev, DR, data >> 16); | |
4194 | } | |
4195 | ||
4196 | /***************************************************************************/ | |
4197 | /* There follows the source form of the MAC address reading firmware */ | |
4198 | /***************************************************************************/ | |
4199 | #if 0 | |
4200 | ||
4201 | /* Copyright 2003 Matthew T. Russotto */ | |
4202 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ | |
4203 | /* included in "atmel wireless lan drivers" package */ | |
4204 | /** | |
4205 | This file is part of net.russotto.AtmelMACFW, hereto referred to | |
4206 | as AtmelMACFW | |
4207 | ||
4208 | AtmelMACFW is free software; you can redistribute it and/or modify | |
4209 | it under the terms of the GNU General Public License version 2 | |
4210 | as published by the Free Software Foundation. | |
4211 | ||
4212 | AtmelMACFW is distributed in the hope that it will be useful, | |
4213 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
4214 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
4215 | GNU General Public License for more details. | |
4216 | ||
4217 | You should have received a copy of the GNU General Public License | |
4218 | along with AtmelMACFW; if not, write to the Free Software | |
4219 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
4220 | ||
4221 | ****************************************************************************/ | |
4222 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ | |
4223 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ | |
4224 | /* It only works on SPI EEPROM versions of the card. */ | |
4225 | ||
4226 | /* This firmware initializes the SPI controller and clock, reads the MAC */ | |
4227 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ | |
4228 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ | |
4229 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ | |
4230 | /* MR4, for investigational purposes (maybe we can determine chip type */ | |
4231 | /* from that?) */ | |
4232 | ||
4233 | .org 0 | |
4234 | .set MRBASE, 0x8000000 | |
4235 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ | |
4236 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ | |
4237 | .set SRAM_BASE, 0x02000000 | |
4238 | .set SP_BASE, 0x0F300000 | |
4239 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ | |
4240 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ | |
4241 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ | |
4242 | .set STACK_BASE, 0x5600 | |
4243 | .set SP_SR, 0x10 | |
4244 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ | |
4245 | .set SP_RDRF, 1 /* status register bit -- RDR full */ | |
4246 | .set SP_SWRST, 0x80 | |
4247 | .set SP_SPIEN, 0x1 | |
4248 | .set SP_CR, 0 /* control register */ | |
4249 | .set SP_MR, 4 /* mode register */ | |
4250 | .set SP_RDR, 0x08 /* Read Data Register */ | |
4251 | .set SP_TDR, 0x0C /* Transmit Data Register */ | |
4252 | .set SP_CSR0, 0x30 /* chip select registers */ | |
4253 | .set SP_CSR1, 0x34 | |
4254 | .set SP_CSR2, 0x38 | |
4255 | .set SP_CSR3, 0x3C | |
4256 | .set NVRAM_CMD_RDSR, 5 /* read status register */ | |
4257 | .set NVRAM_CMD_READ, 3 /* read data */ | |
4258 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ | |
4259 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the | |
4260 | serial output, since SO is normally high. But it | |
4261 | does cause 8 clock cycles and thus 8 bits to be | |
4262 | clocked in to the chip. See Atmel's SPI | |
4d791aad | 4263 | controller (e.g. AT91M55800) timing and 4K |
1da177e4 | 4264 | SPI EEPROM manuals */ |
4d791aad | 4265 | |
1da177e4 LT |
4266 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
4267 | .set NVRAM_IMAGE, 0x02000200 | |
4268 | .set NVRAM_LENGTH, 0x0200 | |
4269 | .set MAC_ADDRESS_MIB, SRAM_BASE | |
4270 | .set MAC_ADDRESS_LENGTH, 6 | |
4271 | .set MAC_BOOT_FLAG, 0x10 | |
4272 | .set MR1, 0 | |
4273 | .set MR2, 4 | |
4274 | .set MR3, 8 | |
4275 | .set MR4, 0xC | |
4276 | RESET_VECTOR: | |
4277 | b RESET_HANDLER | |
4d791aad | 4278 | UNDEF_VECTOR: |
1da177e4 | 4279 | b HALT1 |
4d791aad | 4280 | SWI_VECTOR: |
1da177e4 | 4281 | b HALT1 |
4d791aad | 4282 | IABORT_VECTOR: |
1da177e4 | 4283 | b HALT1 |
4d791aad CP |
4284 | DABORT_VECTOR: |
4285 | RESERVED_VECTOR: | |
1da177e4 | 4286 | b HALT1 |
4d791aad | 4287 | IRQ_VECTOR: |
1da177e4 | 4288 | b HALT1 |
4d791aad | 4289 | FIQ_VECTOR: |
1da177e4 LT |
4290 | b HALT1 |
4291 | HALT1: b HALT1 | |
4292 | RESET_HANDLER: | |
4293 | mov r0, #CPSR_INITIAL | |
4294 | msr CPSR_c, r0 /* This is probably unnecessary */ | |
4d791aad | 4295 | |
1da177e4 LT |
4296 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
4297 | ldr r0, =SPI_CGEN_BASE | |
4298 | mov r1, #0 | |
4299 | mov r1, r1, lsl #3 | |
4300 | orr r1,r1, #0 | |
4301 | str r1, [r0] | |
4302 | ldr r1, [r0, #28] | |
4303 | bic r1, r1, #16 | |
4304 | str r1, [r0, #28] | |
4305 | mov r1, #1 | |
4306 | str r1, [r0, #8] | |
4d791aad | 4307 | |
1da177e4 LT |
4308 | ldr r0, =MRBASE |
4309 | mov r1, #0 | |
4310 | strh r1, [r0, #MR1] | |
4311 | strh r1, [r0, #MR2] | |
4312 | strh r1, [r0, #MR3] | |
4313 | strh r1, [r0, #MR4] | |
4314 | ||
4315 | mov sp, #STACK_BASE | |
4316 | bl SP_INIT | |
4317 | mov r0, #10 | |
4318 | bl DELAY9 | |
4319 | bl GET_MAC_ADDR | |
4320 | bl GET_WHOLE_NVRAM | |
4321 | ldr r0, =MRBASE | |
4322 | ldr r1, =MAC_ADDRESS_MIB | |
4323 | strh r1, [r0, #MR2] | |
4324 | ldr r1, =NVRAM_IMAGE | |
4325 | strh r1, [r0, #MR4] | |
4326 | mov r1, #MAC_BOOT_FLAG | |
4327 | strh r1, [r0, #MR3] | |
4328 | HALT2: b HALT2 | |
4329 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM | |
4330 | GET_WHOLE_NVRAM: | |
4331 | stmdb sp!, {lr} | |
4332 | mov r2, #0 /* 0th bytes of NVRAM */ | |
4333 | mov r3, #NVRAM_LENGTH | |
4334 | mov r1, #0 /* not used in routine */ | |
4335 | ldr r0, =NVRAM_IMAGE | |
4336 | bl NVRAM_XFER | |
4337 | ldmia sp!, {lr} | |
4338 | bx lr | |
4339 | .endfunc | |
4d791aad | 4340 | |
1da177e4 LT |
4341 | .func Get_MAC_Addr, GET_MAC_ADDR |
4342 | GET_MAC_ADDR: | |
4343 | stmdb sp!, {lr} | |
4344 | mov r2, #0x120 /* address of MAC Address within NVRAM */ | |
4345 | mov r3, #MAC_ADDRESS_LENGTH | |
4346 | mov r1, #0 /* not used in routine */ | |
4347 | ldr r0, =MAC_ADDRESS_MIB | |
4348 | bl NVRAM_XFER | |
4349 | ldmia sp!, {lr} | |
4350 | bx lr | |
4351 | .endfunc | |
4352 | .ltorg | |
4353 | .func Delay9, DELAY9 | |
4354 | DELAY9: | |
4355 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ | |
4d791aad | 4356 | DELAYLOOP: |
1da177e4 LT |
4357 | beq DELAY9_done |
4358 | subs r0, r0, #1 | |
4359 | b DELAYLOOP | |
4d791aad | 4360 | DELAY9_done: |
1da177e4 | 4361 | bx lr |
4d791aad | 4362 | .endfunc |
1da177e4 LT |
4363 | |
4364 | .func SP_Init, SP_INIT | |
4365 | SP_INIT: | |
4366 | mov r1, #SP_SWRST | |
4367 | ldr r0, =SP_BASE | |
4368 | str r1, [r0, #SP_CR] /* reset the SPI */ | |
4369 | mov r1, #0 | |
4370 | str r1, [r0, #SP_CR] /* release SPI from reset state */ | |
4371 | mov r1, #SP_SPIEN | |
4372 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ | |
4373 | str r1, [r0, #SP_CR] /* enable the SPI */ | |
4374 | ||
4375 | /* My guess would be this turns on the SPI clock */ | |
4376 | ldr r3, =SPI_CGEN_BASE | |
4377 | ldr r1, [r3, #28] | |
4378 | orr r1, r1, #0x2000 | |
4379 | str r1, [r3, #28] | |
4380 | ||
4381 | ldr r1, =0x2000c01 | |
4382 | str r1, [r0, #SP_CSR0] | |
4383 | ldr r1, =0x2000201 | |
4384 | str r1, [r0, #SP_CSR1] | |
4385 | str r1, [r0, #SP_CSR2] | |
4386 | str r1, [r0, #SP_CSR3] | |
4387 | ldr r1, [r0, #SP_SR] | |
4388 | ldr r0, [r0, #SP_RDR] | |
4389 | bx lr | |
4390 | .endfunc | |
4d791aad | 4391 | .func NVRAM_Init, NVRAM_INIT |
1da177e4 LT |
4392 | NVRAM_INIT: |
4393 | ldr r1, =SP_BASE | |
4394 | ldr r0, [r1, #SP_RDR] | |
4395 | mov r0, #NVRAM_CMD_RDSR | |
4396 | str r0, [r1, #SP_TDR] | |
4d791aad | 4397 | SP_loop1: |
1da177e4 LT |
4398 | ldr r0, [r1, #SP_SR] |
4399 | tst r0, #SP_TDRE | |
4400 | beq SP_loop1 | |
4401 | ||
4402 | mov r0, #SPI_8CLOCKS | |
4d791aad CP |
4403 | str r0, [r1, #SP_TDR] |
4404 | SP_loop2: | |
1da177e4 LT |
4405 | ldr r0, [r1, #SP_SR] |
4406 | tst r0, #SP_TDRE | |
4407 | beq SP_loop2 | |
4408 | ||
4409 | ldr r0, [r1, #SP_RDR] | |
4d791aad | 4410 | SP_loop3: |
1da177e4 LT |
4411 | ldr r0, [r1, #SP_SR] |
4412 | tst r0, #SP_RDRF | |
4413 | beq SP_loop3 | |
4414 | ||
4415 | ldr r0, [r1, #SP_RDR] | |
4416 | and r0, r0, #255 | |
4417 | bx lr | |
4418 | .endfunc | |
4d791aad | 4419 | |
1da177e4 LT |
4420 | .func NVRAM_Xfer, NVRAM_XFER |
4421 | /* r0 = dest address */ | |
4422 | /* r1 = not used */ | |
4423 | /* r2 = src address within NVRAM */ | |
4424 | /* r3 = length */ | |
4425 | NVRAM_XFER: | |
4426 | stmdb sp!, {r4, r5, lr} | |
4427 | mov r5, r0 /* save r0 (dest address) */ | |
4428 | mov r4, r3 /* save r3 (length) */ | |
4429 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ | |
4430 | and r0, r0, #8 | |
4d791aad | 4431 | add r0, r0, #NVRAM_CMD_READ |
1da177e4 LT |
4432 | ldr r1, =NVRAM_SCRATCH |
4433 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ | |
4434 | strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */ | |
4d791aad | 4435 | _local1: |
1da177e4 LT |
4436 | bl NVRAM_INIT |
4437 | tst r0, #NVRAM_SR_RDY | |
4438 | bne _local1 | |
4439 | mov r0, #20 | |
4440 | bl DELAY9 | |
4441 | mov r2, r4 /* length */ | |
4442 | mov r1, r5 /* dest address */ | |
4443 | mov r0, #2 /* bytes to transfer in command */ | |
4444 | bl NVRAM_XFER2 | |
4445 | ldmia sp!, {r4, r5, lr} | |
4446 | bx lr | |
4447 | .endfunc | |
4448 | ||
4449 | .func NVRAM_Xfer2, NVRAM_XFER2 | |
4450 | NVRAM_XFER2: | |
4451 | stmdb sp!, {r4, r5, r6, lr} | |
4452 | ldr r4, =SP_BASE | |
4453 | mov r3, #0 | |
4454 | cmp r0, #0 | |
4455 | bls _local2 | |
4456 | ldr r5, =NVRAM_SCRATCH | |
4d791aad | 4457 | _local4: |
1da177e4 LT |
4458 | ldrb r6, [r5, r3] |
4459 | str r6, [r4, #SP_TDR] | |
4460 | _local3: | |
4461 | ldr r6, [r4, #SP_SR] | |
4462 | tst r6, #SP_TDRE | |
4463 | beq _local3 | |
4464 | add r3, r3, #1 | |
4465 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ | |
4466 | blo _local4 | |
4467 | _local2: | |
4468 | mov r3, #SPI_8CLOCKS | |
4469 | str r3, [r4, #SP_TDR] | |
4470 | ldr r0, [r4, #SP_RDR] | |
4d791aad | 4471 | _local5: |
1da177e4 LT |
4472 | ldr r0, [r4, #SP_SR] |
4473 | tst r0, #SP_RDRF | |
4474 | beq _local5 | |
4475 | 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 */ | |
4476 | mov r0, #0 | |
4477 | cmp r2, #0 /* r2 is # of bytes to copy in */ | |
4478 | bls _local6 | |
4d791aad | 4479 | _local7: |
1da177e4 LT |
4480 | ldr r5, [r4, #SP_SR] |
4481 | tst r5, #SP_TDRE | |
4482 | beq _local7 | |
4483 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ | |
4d791aad | 4484 | _local8: |
1da177e4 LT |
4485 | ldr r5, [r4, #SP_SR] |
4486 | tst r5, #SP_RDRF | |
4487 | beq _local8 | |
4488 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ | |
4489 | strb r5, [r1], #1 /* postindexed */ | |
4490 | add r0, r0, #1 | |
4491 | cmp r0, r2 | |
4492 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ | |
4493 | _local6: | |
4494 | mov r0, #200 | |
4495 | bl DELAY9 | |
4496 | ldmia sp!, {r4, r5, r6, lr} | |
4497 | bx lr | |
4498 | #endif |