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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> | |
1da177e4 LT |
45 | #include <linux/ptrace.h> |
46 | #include <linux/slab.h> | |
47 | #include <linux/string.h> | |
48 | #include <linux/ctype.h> | |
49 | #include <linux/timer.h> | |
50 | #include <asm/io.h> | |
51 | #include <asm/system.h> | |
52 | #include <asm/uaccess.h> | |
53 | #include <linux/module.h> | |
54 | #include <linux/netdevice.h> | |
55 | #include <linux/etherdevice.h> | |
56 | #include <linux/skbuff.h> | |
57 | #include <linux/if_arp.h> | |
58 | #include <linux/ioport.h> | |
59 | #include <linux/fcntl.h> | |
60 | #include <linux/delay.h> | |
61 | #include <linux/wireless.h> | |
62 | #include <net/iw_handler.h> | |
63 | #include <linux/byteorder/generic.h> | |
64 | #include <linux/crc32.h> | |
65 | #include <linux/proc_fs.h> | |
66 | #include <linux/device.h> | |
67 | #include <linux/moduleparam.h> | |
68 | #include <linux/firmware.h> | |
b453872c | 69 | #include <net/ieee80211.h> |
1da177e4 LT |
70 | #include "atmel.h" |
71 | ||
72 | #define DRIVER_MAJOR 0 | |
b16a228d | 73 | #define DRIVER_MINOR 98 |
1da177e4 LT |
74 | |
75 | MODULE_AUTHOR("Simon Kelley"); | |
76 | MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); | |
77 | MODULE_LICENSE("GPL"); | |
78 | MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards"); | |
79 | ||
4d791aad | 80 | /* The name of the firmware file to be loaded |
1da177e4 LT |
81 | over-rides any automatic selection */ |
82 | static char *firmware = NULL; | |
83 | module_param(firmware, charp, 0); | |
84 | ||
85 | /* table of firmware file names */ | |
4d791aad | 86 | static struct { |
1da177e4 LT |
87 | AtmelFWType fw_type; |
88 | const char *fw_file; | |
89 | const char *fw_file_ext; | |
90 | } fw_table[] = { | |
91 | { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" }, | |
92 | { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" }, | |
93 | { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" }, | |
94 | { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" }, | |
95 | { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" }, | |
96 | { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" }, | |
97 | { ATMEL_FW_TYPE_504A_2958,"atmel_at76c504a_2958","bin" }, | |
98 | { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" }, | |
99 | { ATMEL_FW_TYPE_NONE, NULL, NULL } | |
100 | }; | |
101 | ||
102 | #define MAX_SSID_LENGTH 32 | |
103 | #define MGMT_JIFFIES (256 * HZ / 100) | |
104 | ||
4d791aad | 105 | #define MAX_BSS_ENTRIES 64 |
1da177e4 LT |
106 | |
107 | /* registers */ | |
4d791aad CP |
108 | #define GCR 0x00 // (SIR0) General Configuration Register |
109 | #define BSR 0x02 // (SIR1) Bank Switching Select Register | |
1da177e4 LT |
110 | #define AR 0x04 |
111 | #define DR 0x08 | |
4d791aad CP |
112 | #define MR1 0x12 // Mirror Register 1 |
113 | #define MR2 0x14 // Mirror Register 2 | |
114 | #define MR3 0x16 // Mirror Register 3 | |
115 | #define MR4 0x18 // Mirror Register 4 | |
1da177e4 LT |
116 | |
117 | #define GPR1 0x0c | |
118 | #define GPR2 0x0e | |
119 | #define GPR3 0x10 | |
120 | // | |
121 | // Constants for the GCR register. | |
122 | // | |
123 | #define GCR_REMAP 0x0400 // Remap internal SRAM to 0 | |
4d791aad | 124 | #define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset) |
1da177e4 | 125 | #define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset) |
4d791aad | 126 | #define GCR_ENINT 0x0002 // Enable Interrupts |
1da177e4 LT |
127 | #define GCR_ACKINT 0x0008 // Acknowledge Interrupts |
128 | ||
129 | #define BSS_SRAM 0x0200 // AMBA module selection --> SRAM | |
130 | #define BSS_IRAM 0x0100 // AMBA module selection --> IRAM | |
131 | // | |
132 | // Constants for the MR registers. | |
133 | // | |
134 | #define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed | |
135 | #define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed | |
136 | #define MAC_INIT_OK 0x0002 // MAC boot has been completed | |
137 | ||
1da177e4 LT |
138 | #define MIB_MAX_DATA_BYTES 212 |
139 | #define MIB_HEADER_SIZE 4 /* first four fields */ | |
140 | ||
141 | struct get_set_mib { | |
142 | u8 type; | |
143 | u8 size; | |
144 | u8 index; | |
145 | u8 reserved; | |
146 | u8 data[MIB_MAX_DATA_BYTES]; | |
147 | }; | |
148 | ||
149 | struct rx_desc { | |
150 | u32 Next; | |
151 | u16 MsduPos; | |
152 | u16 MsduSize; | |
4d791aad | 153 | |
1da177e4 LT |
154 | u8 State; |
155 | u8 Status; | |
156 | u8 Rate; | |
157 | u8 Rssi; | |
158 | u8 LinkQuality; | |
159 | u8 PreambleType; | |
160 | u16 Duration; | |
161 | u32 RxTime; | |
1da177e4 LT |
162 | }; |
163 | ||
164 | #define RX_DESC_FLAG_VALID 0x80 | |
165 | #define RX_DESC_FLAG_CONSUMED 0x40 | |
166 | #define RX_DESC_FLAG_IDLE 0x00 | |
167 | ||
168 | #define RX_STATUS_SUCCESS 0x00 | |
169 | ||
170 | #define RX_DESC_MSDU_POS_OFFSET 4 | |
171 | #define RX_DESC_MSDU_SIZE_OFFSET 6 | |
172 | #define RX_DESC_FLAGS_OFFSET 8 | |
173 | #define RX_DESC_STATUS_OFFSET 9 | |
174 | #define RX_DESC_RSSI_OFFSET 11 | |
175 | #define RX_DESC_LINK_QUALITY_OFFSET 12 | |
176 | #define RX_DESC_PREAMBLE_TYPE_OFFSET 13 | |
177 | #define RX_DESC_DURATION_OFFSET 14 | |
178 | #define RX_DESC_RX_TIME_OFFSET 16 | |
179 | ||
1da177e4 LT |
180 | struct tx_desc { |
181 | u32 NextDescriptor; | |
182 | u16 TxStartOfFrame; | |
183 | u16 TxLength; | |
4d791aad | 184 | |
1da177e4 LT |
185 | u8 TxState; |
186 | u8 TxStatus; | |
187 | u8 RetryCount; | |
4d791aad | 188 | |
1da177e4 LT |
189 | u8 TxRate; |
190 | ||
191 | u8 KeyIndex; | |
192 | u8 ChiperType; | |
193 | u8 ChipreLength; | |
194 | u8 Reserved1; | |
195 | ||
196 | u8 Reserved; | |
197 | u8 PacketType; | |
198 | u16 HostTxLength; | |
1da177e4 LT |
199 | }; |
200 | ||
1da177e4 LT |
201 | #define TX_DESC_NEXT_OFFSET 0 |
202 | #define TX_DESC_POS_OFFSET 4 | |
203 | #define TX_DESC_SIZE_OFFSET 6 | |
204 | #define TX_DESC_FLAGS_OFFSET 8 | |
205 | #define TX_DESC_STATUS_OFFSET 9 | |
206 | #define TX_DESC_RETRY_OFFSET 10 | |
207 | #define TX_DESC_RATE_OFFSET 11 | |
208 | #define TX_DESC_KEY_INDEX_OFFSET 12 | |
209 | #define TX_DESC_CIPHER_TYPE_OFFSET 13 | |
210 | #define TX_DESC_CIPHER_LENGTH_OFFSET 14 | |
211 | #define TX_DESC_PACKET_TYPE_OFFSET 17 | |
212 | #define TX_DESC_HOST_LENGTH_OFFSET 18 | |
213 | ||
1da177e4 LT |
214 | /////////////////////////////////////////////////////// |
215 | // Host-MAC interface | |
216 | /////////////////////////////////////////////////////// | |
217 | ||
218 | #define TX_STATUS_SUCCESS 0x00 | |
219 | ||
220 | #define TX_FIRM_OWN 0x80 | |
221 | #define TX_DONE 0x40 | |
222 | ||
1da177e4 LT |
223 | #define TX_ERROR 0x01 |
224 | ||
225 | #define TX_PACKET_TYPE_DATA 0x01 | |
226 | #define TX_PACKET_TYPE_MGMT 0x02 | |
227 | ||
228 | #define ISR_EMPTY 0x00 // no bits set in ISR | |
229 | #define ISR_TxCOMPLETE 0x01 // packet transmitted | |
230 | #define ISR_RxCOMPLETE 0x02 // packet received | |
231 | #define ISR_RxFRAMELOST 0x04 // Rx Frame lost | |
232 | #define ISR_FATAL_ERROR 0x08 // Fatal error | |
233 | #define ISR_COMMAND_COMPLETE 0x10 // command completed | |
234 | #define ISR_OUT_OF_RANGE 0x20 // command completed | |
235 | #define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge | |
4d791aad | 236 | #define ISR_GENERIC_IRQ 0x80 |
1da177e4 LT |
237 | |
238 | #define Local_Mib_Type 0x01 | |
239 | #define Mac_Address_Mib_Type 0x02 | |
240 | #define Mac_Mib_Type 0x03 | |
241 | #define Statistics_Mib_Type 0x04 | |
242 | #define Mac_Mgmt_Mib_Type 0x05 | |
243 | #define Mac_Wep_Mib_Type 0x06 | |
244 | #define Phy_Mib_Type 0x07 | |
245 | #define Multi_Domain_MIB 0x08 | |
246 | ||
247 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
248 | #define MAC_MIB_FRAG_THRESHOLD_POS 8 | |
249 | #define MAC_MIB_RTS_THRESHOLD_POS 10 | |
250 | #define MAC_MIB_SHORT_RETRY_POS 16 | |
251 | #define MAC_MIB_LONG_RETRY_POS 17 | |
252 | #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16 | |
253 | #define MAC_MGMT_MIB_BEACON_PER_POS 0 | |
254 | #define MAC_MGMT_MIB_STATION_ID_POS 6 | |
255 | #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11 | |
256 | #define MAC_MGMT_MIB_CUR_BSSID_POS 14 | |
257 | #define MAC_MGMT_MIB_PS_MODE_POS 53 | |
258 | #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54 | |
259 | #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56 | |
260 | #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57 | |
261 | #define PHY_MIB_CHANNEL_POS 14 | |
262 | #define PHY_MIB_RATE_SET_POS 20 | |
263 | #define PHY_MIB_REG_DOMAIN_POS 26 | |
264 | #define LOCAL_MIB_AUTO_TX_RATE_POS 3 | |
265 | #define LOCAL_MIB_SSID_SIZE 5 | |
266 | #define LOCAL_MIB_TX_PROMISCUOUS_POS 6 | |
267 | #define LOCAL_MIB_TX_MGMT_RATE_POS 7 | |
268 | #define LOCAL_MIB_TX_CONTROL_RATE_POS 8 | |
269 | #define LOCAL_MIB_PREAMBLE_TYPE 9 | |
270 | #define MAC_ADDR_MIB_MAC_ADDR_POS 0 | |
271 | ||
1da177e4 LT |
272 | #define CMD_Set_MIB_Vars 0x01 |
273 | #define CMD_Get_MIB_Vars 0x02 | |
274 | #define CMD_Scan 0x03 | |
275 | #define CMD_Join 0x04 | |
276 | #define CMD_Start 0x05 | |
277 | #define CMD_EnableRadio 0x06 | |
278 | #define CMD_DisableRadio 0x07 | |
279 | #define CMD_SiteSurvey 0x0B | |
280 | ||
281 | #define CMD_STATUS_IDLE 0x00 | |
282 | #define CMD_STATUS_COMPLETE 0x01 | |
283 | #define CMD_STATUS_UNKNOWN 0x02 | |
284 | #define CMD_STATUS_INVALID_PARAMETER 0x03 | |
285 | #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 | |
286 | #define CMD_STATUS_TIME_OUT 0x07 | |
287 | #define CMD_STATUS_IN_PROGRESS 0x08 | |
288 | #define CMD_STATUS_REJECTED_RADIO_OFF 0x09 | |
289 | #define CMD_STATUS_HOST_ERROR 0xFF | |
290 | #define CMD_STATUS_BUSY 0xFE | |
291 | ||
1da177e4 LT |
292 | #define CMD_BLOCK_COMMAND_OFFSET 0 |
293 | #define CMD_BLOCK_STATUS_OFFSET 1 | |
294 | #define CMD_BLOCK_PARAMETERS_OFFSET 4 | |
295 | ||
296 | #define SCAN_OPTIONS_SITE_SURVEY 0x80 | |
297 | ||
298 | #define MGMT_FRAME_BODY_OFFSET 24 | |
299 | #define MAX_AUTHENTICATION_RETRIES 3 | |
4d791aad | 300 | #define MAX_ASSOCIATION_RETRIES 3 |
1da177e4 LT |
301 | |
302 | #define AUTHENTICATION_RESPONSE_TIME_OUT 1000 | |
303 | ||
304 | #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */ | |
305 | #define LOOP_RETRY_LIMIT 500000 | |
306 | ||
4d791aad CP |
307 | #define ACTIVE_MODE 1 |
308 | #define PS_MODE 2 | |
1da177e4 LT |
309 | |
310 | #define MAX_ENCRYPTION_KEYS 4 | |
311 | #define MAX_ENCRYPTION_KEY_SIZE 40 | |
312 | ||
313 | /////////////////////////////////////////////////////////////////////////// | |
314 | // 802.11 related definitions | |
315 | /////////////////////////////////////////////////////////////////////////// | |
316 | ||
317 | // | |
318 | // Regulatory Domains | |
319 | // | |
320 | ||
321 | #define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA | |
322 | #define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada | |
323 | #define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France) | |
324 | #define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain | |
325 | #define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France | |
326 | #define REG_DOMAIN_MKK 0x40 //Channel 14 Japan | |
327 | #define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1) | |
328 | #define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL | |
329 | ||
4d791aad | 330 | #define BSS_TYPE_AD_HOC 1 |
1da177e4 LT |
331 | #define BSS_TYPE_INFRASTRUCTURE 2 |
332 | ||
333 | #define SCAN_TYPE_ACTIVE 0 | |
334 | #define SCAN_TYPE_PASSIVE 1 | |
335 | ||
336 | #define LONG_PREAMBLE 0 | |
337 | #define SHORT_PREAMBLE 1 | |
338 | #define AUTO_PREAMBLE 2 | |
339 | ||
340 | #define DATA_FRAME_WS_HEADER_SIZE 30 | |
341 | ||
4d791aad | 342 | /* promiscuous mode control */ |
1da177e4 LT |
343 | #define PROM_MODE_OFF 0x0 |
344 | #define PROM_MODE_UNKNOWN 0x1 | |
345 | #define PROM_MODE_CRC_FAILED 0x2 | |
346 | #define PROM_MODE_DUPLICATED 0x4 | |
347 | #define PROM_MODE_MGMT 0x8 | |
348 | #define PROM_MODE_CTRL 0x10 | |
349 | #define PROM_MODE_BAD_PROTOCOL 0x20 | |
350 | ||
4d791aad | 351 | #define IFACE_INT_STATUS_OFFSET 0 |
1da177e4 LT |
352 | #define IFACE_INT_MASK_OFFSET 1 |
353 | #define IFACE_LOCKOUT_HOST_OFFSET 2 | |
354 | #define IFACE_LOCKOUT_MAC_OFFSET 3 | |
355 | #define IFACE_FUNC_CTRL_OFFSET 28 | |
356 | #define IFACE_MAC_STAT_OFFSET 30 | |
357 | #define IFACE_GENERIC_INT_TYPE_OFFSET 32 | |
358 | ||
4d791aad | 359 | #define CIPHER_SUITE_NONE 0 |
1da177e4 LT |
360 | #define CIPHER_SUITE_WEP_64 1 |
361 | #define CIPHER_SUITE_TKIP 2 | |
362 | #define CIPHER_SUITE_AES 3 | |
363 | #define CIPHER_SUITE_CCX 4 | |
364 | #define CIPHER_SUITE_WEP_128 5 | |
365 | ||
366 | // | |
367 | // IFACE MACROS & definitions | |
368 | // | |
369 | // | |
370 | ||
4d791aad | 371 | // FuncCtrl field: |
1da177e4 LT |
372 | // |
373 | #define FUNC_CTRL_TxENABLE 0x10 | |
374 | #define FUNC_CTRL_RxENABLE 0x20 | |
4d791aad | 375 | #define FUNC_CTRL_INIT_COMPLETE 0x01 |
1da177e4 LT |
376 | |
377 | /* A stub firmware image which reads the MAC address from NVRAM on the card. | |
378 | For copyright information and source see the end of this file. */ | |
379 | static u8 mac_reader[] = { | |
380 | 0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea, | |
381 | 0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea, | |
382 | 0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
383 | 0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5, | |
384 | 0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5, | |
385 | 0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1, | |
386 | 0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb, | |
387 | 0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb, | |
388 | 0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5, | |
389 | 0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea, | |
390 | 0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
391 | 0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, | |
392 | 0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3, | |
393 | 0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1, | |
394 | 0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2, | |
395 | 0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3, | |
396 | 0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3, | |
397 | 0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5, | |
398 | 0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5, | |
399 | 0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5, | |
400 | 0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3, | |
401 | 0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5, | |
402 | 0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5, | |
403 | 0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, | |
404 | 0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5, | |
405 | 0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1, | |
406 | 0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2, | |
407 | 0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb, | |
408 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb, | |
409 | 0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb, | |
410 | 0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3, | |
411 | 0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5, | |
412 | 0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3, | |
413 | 0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a, | |
414 | 0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5, | |
415 | 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3, | |
416 | 0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3, | |
417 | 0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3, | |
418 | 0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2, | |
419 | 0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb, | |
420 | 0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02, | |
421 | 0x00,0x01,0x00,0x02 | |
422 | }; | |
423 | ||
424 | struct atmel_private { | |
425 | void *card; /* Bus dependent stucture varies for PCcard */ | |
426 | int (*present_callback)(void *); /* And callback which uses it */ | |
427 | char firmware_id[32]; | |
428 | AtmelFWType firmware_type; | |
429 | u8 *firmware; | |
430 | int firmware_length; | |
431 | struct timer_list management_timer; | |
432 | struct net_device *dev; | |
433 | struct device *sys_dev; | |
434 | struct iw_statistics wstats; | |
435 | struct net_device_stats stats; // device stats | |
436 | spinlock_t irqlock, timerlock; // spinlocks | |
437 | enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type; | |
4d791aad CP |
438 | enum { |
439 | CARD_TYPE_PARALLEL_FLASH, | |
1da177e4 | 440 | CARD_TYPE_SPI_FLASH, |
4d791aad | 441 | CARD_TYPE_EEPROM |
1da177e4 LT |
442 | } card_type; |
443 | int do_rx_crc; /* If we need to CRC incoming packets */ | |
444 | int probe_crc; /* set if we don't yet know */ | |
445 | int crc_ok_cnt, crc_ko_cnt; /* counters for probing */ | |
446 | u16 rx_desc_head; | |
447 | u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous; | |
448 | u16 tx_free_mem, tx_buff_head, tx_buff_tail; | |
4d791aad | 449 | |
1da177e4 | 450 | u16 frag_seq, frag_len, frag_no; |
4d791aad CP |
451 | u8 frag_source[6]; |
452 | ||
1da177e4 LT |
453 | u8 wep_is_on, default_key, exclude_unencrypted, encryption_level; |
454 | u8 group_cipher_suite, pairwise_cipher_suite; | |
455 | u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
4d791aad | 456 | int wep_key_len[MAX_ENCRYPTION_KEYS]; |
1da177e4 LT |
457 | int use_wpa, radio_on_broken; /* firmware dependent stuff. */ |
458 | ||
459 | u16 host_info_base; | |
4d791aad | 460 | struct host_info_struct { |
1da177e4 LT |
461 | /* NB this is matched to the hardware, don't change. */ |
462 | u8 volatile int_status; | |
463 | u8 volatile int_mask; | |
464 | u8 volatile lockout_host; | |
465 | u8 volatile lockout_mac; | |
466 | ||
467 | u16 tx_buff_pos; | |
468 | u16 tx_buff_size; | |
469 | u16 tx_desc_pos; | |
470 | u16 tx_desc_count; | |
471 | ||
472 | u16 rx_buff_pos; | |
473 | u16 rx_buff_size; | |
474 | u16 rx_desc_pos; | |
475 | u16 rx_desc_count; | |
4d791aad | 476 | |
1da177e4 | 477 | u16 build_version; |
4d791aad CP |
478 | u16 command_pos; |
479 | ||
1da177e4 LT |
480 | u16 major_version; |
481 | u16 minor_version; | |
4d791aad | 482 | |
1da177e4 LT |
483 | u16 func_ctrl; |
484 | u16 mac_status; | |
485 | u16 generic_IRQ_type; | |
486 | u8 reserved[2]; | |
487 | } host_info; | |
488 | ||
4d791aad | 489 | enum { |
1da177e4 LT |
490 | STATION_STATE_SCANNING, |
491 | STATION_STATE_JOINNING, | |
492 | STATION_STATE_AUTHENTICATING, | |
493 | STATION_STATE_ASSOCIATING, | |
494 | STATION_STATE_READY, | |
495 | STATION_STATE_REASSOCIATING, | |
496 | STATION_STATE_DOWN, | |
497 | STATION_STATE_MGMT_ERROR | |
498 | } station_state; | |
4d791aad | 499 | |
1da177e4 LT |
500 | int operating_mode, power_mode; |
501 | time_t last_qual; | |
502 | int beacons_this_sec; | |
503 | int channel; | |
504 | int reg_domain, config_reg_domain; | |
505 | int tx_rate; | |
506 | int auto_tx_rate; | |
507 | int rts_threshold; | |
508 | int frag_threshold; | |
509 | int long_retry, short_retry; | |
510 | int preamble; | |
511 | int default_beacon_period, beacon_period, listen_interval; | |
4d791aad | 512 | int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum; |
1da177e4 LT |
513 | int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt; |
514 | enum { | |
515 | SITE_SURVEY_IDLE, | |
516 | SITE_SURVEY_IN_PROGRESS, | |
4d791aad | 517 | SITE_SURVEY_COMPLETED |
1da177e4 LT |
518 | } site_survey_state; |
519 | time_t last_survey; | |
520 | ||
521 | int station_was_associated, station_is_associated; | |
522 | int fast_scan; | |
4d791aad | 523 | |
1da177e4 LT |
524 | struct bss_info { |
525 | int channel; | |
526 | int SSIDsize; | |
527 | int RSSI; | |
528 | int UsingWEP; | |
529 | int preamble; | |
530 | int beacon_period; | |
531 | int BSStype; | |
532 | u8 BSSID[6]; | |
533 | u8 SSID[MAX_SSID_LENGTH]; | |
534 | } BSSinfo[MAX_BSS_ENTRIES]; | |
535 | int BSS_list_entries, current_BSS; | |
4d791aad | 536 | int connect_to_any_BSS; |
1da177e4 LT |
537 | int SSID_size, new_SSID_size; |
538 | u8 CurrentBSSID[6], BSSID[6]; | |
539 | u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH]; | |
540 | u64 last_beacon_timestamp; | |
541 | u8 rx_buf[MAX_WIRELESS_BODY]; | |
1da177e4 LT |
542 | }; |
543 | ||
544 | static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16}; | |
545 | ||
546 | static const struct { | |
547 | int reg_domain; | |
548 | int min, max; | |
4d791aad | 549 | char *name; |
1da177e4 LT |
550 | } channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" }, |
551 | { REG_DOMAIN_DOC, 1, 11, "Canada" }, | |
552 | { REG_DOMAIN_ETSI, 1, 13, "Europe" }, | |
553 | { REG_DOMAIN_SPAIN, 10, 11, "Spain" }, | |
4d791aad | 554 | { REG_DOMAIN_FRANCE, 10, 13, "France" }, |
1da177e4 LT |
555 | { REG_DOMAIN_MKK, 14, 14, "MKK" }, |
556 | { REG_DOMAIN_MKK1, 1, 14, "MKK1" }, | |
557 | { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} }; | |
558 | ||
559 | static void build_wpa_mib(struct atmel_private *priv); | |
560 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
4d791aad CP |
561 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
562 | unsigned char *src, u16 len); | |
563 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, | |
564 | u16 src, u16 len); | |
1da177e4 LT |
565 | static void atmel_set_gcr(struct net_device *dev, u16 mask); |
566 | static void atmel_clear_gcr(struct net_device *dev, u16 mask); | |
567 | static int atmel_lock_mac(struct atmel_private *priv); | |
568 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); | |
569 | static void atmel_command_irq(struct atmel_private *priv); | |
570 | static int atmel_validate_channel(struct atmel_private *priv, int channel); | |
4d791aad CP |
571 | static void atmel_management_frame(struct atmel_private *priv, |
572 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
573 | u16 frame_len, u8 rssi); |
574 | static void atmel_management_timer(u_long a); | |
4d791aad CP |
575 | static void atmel_send_command(struct atmel_private *priv, int command, |
576 | void *cmd, int cmd_size); | |
577 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
578 | void *cmd, int cmd_size); | |
579 | static void atmel_transmit_management_frame(struct atmel_private *priv, | |
580 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
581 | u8 *body, int body_len); |
582 | ||
583 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); | |
4d791aad CP |
584 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, |
585 | u8 data); | |
586 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, | |
587 | u16 data); | |
588 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, | |
589 | u8 *data, int data_len); | |
590 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, | |
591 | u8 *data, int data_len); | |
1da177e4 LT |
592 | static void atmel_scan(struct atmel_private *priv, int specific_ssid); |
593 | static void atmel_join_bss(struct atmel_private *priv, int bss_index); | |
594 | static void atmel_smooth_qual(struct atmel_private *priv); | |
595 | static void atmel_writeAR(struct net_device *dev, u16 data); | |
596 | static int probe_atmel_card(struct net_device *dev); | |
5c877fe5 | 597 | static int reset_atmel_card(struct net_device *dev); |
1da177e4 LT |
598 | static void atmel_enter_state(struct atmel_private *priv, int new_state); |
599 | int atmel_open (struct net_device *dev); | |
600 | ||
601 | static inline u16 atmel_hi(struct atmel_private *priv, u16 offset) | |
602 | { | |
603 | return priv->host_info_base + offset; | |
604 | } | |
605 | ||
606 | static inline u16 atmel_co(struct atmel_private *priv, u16 offset) | |
607 | { | |
608 | return priv->host_info.command_pos + offset; | |
609 | } | |
610 | ||
4d791aad | 611 | static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
612 | { |
613 | return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset; | |
614 | } | |
615 | ||
4d791aad | 616 | static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc) |
1da177e4 LT |
617 | { |
618 | return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset; | |
619 | } | |
620 | ||
621 | static inline u8 atmel_read8(struct net_device *dev, u16 offset) | |
622 | { | |
623 | return inb(dev->base_addr + offset); | |
624 | } | |
625 | ||
626 | static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data) | |
627 | { | |
628 | outb(data, dev->base_addr + offset); | |
629 | } | |
630 | ||
631 | static inline u16 atmel_read16(struct net_device *dev, u16 offset) | |
632 | { | |
633 | return inw(dev->base_addr + offset); | |
634 | } | |
635 | ||
636 | static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data) | |
637 | { | |
638 | outw(data, dev->base_addr + offset); | |
639 | } | |
640 | ||
641 | static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos) | |
642 | { | |
4d791aad | 643 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
644 | return atmel_read8(priv->dev, DR); |
645 | } | |
646 | ||
647 | static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data) | |
648 | { | |
4d791aad | 649 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
650 | atmel_write8(priv->dev, DR, data); |
651 | } | |
652 | ||
653 | static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos) | |
654 | { | |
4d791aad | 655 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
656 | return atmel_read16(priv->dev, DR); |
657 | } | |
658 | ||
659 | static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data) | |
660 | { | |
4d791aad | 661 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
662 | atmel_write16(priv->dev, DR, data); |
663 | } | |
664 | ||
665 | static const struct iw_handler_def atmel_handler_def; | |
666 | ||
667 | static void tx_done_irq(struct atmel_private *priv) | |
668 | { | |
669 | int i; | |
670 | ||
4d791aad | 671 | for (i = 0; |
1da177e4 LT |
672 | atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE && |
673 | i < priv->host_info.tx_desc_count; | |
674 | i++) { | |
1da177e4 LT |
675 | u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head)); |
676 | u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head)); | |
677 | u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head)); | |
678 | ||
679 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0); | |
680 | ||
681 | priv->tx_free_mem += msdu_size; | |
682 | priv->tx_desc_free++; | |
683 | ||
684 | if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size)) | |
685 | priv->tx_buff_head = 0; | |
686 | else | |
687 | priv->tx_buff_head += msdu_size; | |
4d791aad | 688 | |
1da177e4 | 689 | if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1)) |
4d791aad | 690 | priv->tx_desc_head++ ; |
1da177e4 LT |
691 | else |
692 | priv->tx_desc_head = 0; | |
4d791aad | 693 | |
1da177e4 LT |
694 | if (type == TX_PACKET_TYPE_DATA) { |
695 | if (status == TX_STATUS_SUCCESS) | |
696 | priv->stats.tx_packets++; | |
4d791aad | 697 | else |
1da177e4 LT |
698 | priv->stats.tx_errors++; |
699 | netif_wake_queue(priv->dev); | |
700 | } | |
701 | } | |
702 | } | |
703 | ||
704 | static u16 find_tx_buff(struct atmel_private *priv, u16 len) | |
705 | { | |
706 | u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail; | |
707 | ||
4d791aad | 708 | if (priv->tx_desc_free == 3 || priv->tx_free_mem < len) |
1da177e4 | 709 | return 0; |
4d791aad | 710 | |
1da177e4 LT |
711 | if (bottom_free >= len) |
712 | return priv->host_info.tx_buff_pos + priv->tx_buff_tail; | |
4d791aad | 713 | |
1da177e4 LT |
714 | if (priv->tx_free_mem - bottom_free >= len) { |
715 | priv->tx_buff_tail = 0; | |
716 | return priv->host_info.tx_buff_pos; | |
717 | } | |
4d791aad | 718 | |
1da177e4 LT |
719 | return 0; |
720 | } | |
721 | ||
4d791aad CP |
722 | static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, |
723 | u16 len, u16 buff, u8 type) | |
1da177e4 LT |
724 | { |
725 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff); | |
726 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len); | |
727 | if (!priv->use_wpa) | |
728 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len); | |
729 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type); | |
730 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate); | |
731 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0); | |
732 | if (priv->use_wpa) { | |
733 | int cipher_type, cipher_length; | |
734 | if (is_bcast) { | |
735 | cipher_type = priv->group_cipher_suite; | |
4d791aad CP |
736 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
737 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
738 | cipher_length = 8; |
739 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
740 | cipher_length = 12; | |
741 | else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 || | |
742 | priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) { | |
743 | cipher_type = priv->pairwise_cipher_suite; | |
744 | cipher_length = 8; | |
745 | } else { | |
746 | cipher_type = CIPHER_SUITE_NONE; | |
747 | cipher_length = 0; | |
748 | } | |
749 | } else { | |
750 | cipher_type = priv->pairwise_cipher_suite; | |
4d791aad CP |
751 | if (cipher_type == CIPHER_SUITE_WEP_64 || |
752 | cipher_type == CIPHER_SUITE_WEP_128) | |
1da177e4 LT |
753 | cipher_length = 8; |
754 | else if (cipher_type == CIPHER_SUITE_TKIP) | |
755 | cipher_length = 12; | |
756 | else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 || | |
757 | priv->group_cipher_suite == CIPHER_SUITE_WEP_128) { | |
758 | cipher_type = priv->group_cipher_suite; | |
759 | cipher_length = 8; | |
760 | } else { | |
761 | cipher_type = CIPHER_SUITE_NONE; | |
762 | cipher_length = 0; | |
763 | } | |
764 | } | |
4d791aad | 765 | |
1da177e4 | 766 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail), |
4d791aad | 767 | cipher_type); |
1da177e4 LT |
768 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail), |
769 | cipher_length); | |
770 | } | |
771 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L); | |
772 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN); | |
773 | if (priv->tx_desc_previous != priv->tx_desc_tail) | |
774 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0); | |
775 | priv->tx_desc_previous = priv->tx_desc_tail; | |
4d791aad | 776 | if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1)) |
1da177e4 LT |
777 | priv->tx_desc_tail++; |
778 | else | |
779 | priv->tx_desc_tail = 0; | |
780 | priv->tx_desc_free--; | |
781 | priv->tx_free_mem -= len; | |
1da177e4 LT |
782 | } |
783 | ||
4d791aad | 784 | static int start_tx(struct sk_buff *skb, struct net_device *dev) |
1da177e4 | 785 | { |
00a5ebf8 | 786 | static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; |
1da177e4 | 787 | struct atmel_private *priv = netdev_priv(dev); |
4ca5253d | 788 | struct ieee80211_hdr_4addr header; |
1da177e4 LT |
789 | unsigned long flags; |
790 | u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; | |
4d791aad CP |
791 | |
792 | if (priv->card && priv->present_callback && | |
1da177e4 LT |
793 | !(*priv->present_callback)(priv->card)) { |
794 | priv->stats.tx_errors++; | |
795 | dev_kfree_skb(skb); | |
796 | return 0; | |
797 | } | |
4d791aad | 798 | |
1da177e4 LT |
799 | if (priv->station_state != STATION_STATE_READY) { |
800 | priv->stats.tx_errors++; | |
801 | dev_kfree_skb(skb); | |
802 | return 0; | |
803 | } | |
4d791aad | 804 | |
1da177e4 | 805 | /* first ensure the timer func cannot run */ |
4d791aad | 806 | spin_lock_bh(&priv->timerlock); |
1da177e4 | 807 | /* then stop the hardware ISR */ |
4d791aad | 808 | spin_lock_irqsave(&priv->irqlock, flags); |
1da177e4 | 809 | /* nb doing the above in the opposite order will deadlock */ |
4d791aad | 810 | |
1da177e4 | 811 | /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the |
4d791aad CP |
812 | 12 first bytes (containing DA/SA) and put them in the appropriate |
813 | fields of the Wireless Header. Thus the packet length is then the | |
814 | initial + 18 (+30-12) */ | |
815 | ||
1da177e4 LT |
816 | if (!(buff = find_tx_buff(priv, len + 18))) { |
817 | priv->stats.tx_dropped++; | |
818 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
819 | spin_unlock_bh(&priv->timerlock); | |
820 | netif_stop_queue(dev); | |
821 | return 1; | |
822 | } | |
4d791aad | 823 | |
b453872c | 824 | frame_ctl = IEEE80211_FTYPE_DATA; |
1da177e4 LT |
825 | header.duration_id = 0; |
826 | header.seq_ctl = 0; | |
827 | if (priv->wep_is_on) | |
f13baae4 | 828 | frame_ctl |= IEEE80211_FCTL_PROTECTED; |
1da177e4 | 829 | if (priv->operating_mode == IW_MODE_ADHOC) { |
d626f62b | 830 | skb_copy_from_linear_data(skb, &header.addr1, 6); |
1da177e4 LT |
831 | memcpy(&header.addr2, dev->dev_addr, 6); |
832 | memcpy(&header.addr3, priv->BSSID, 6); | |
833 | } else { | |
b453872c | 834 | frame_ctl |= IEEE80211_FCTL_TODS; |
1da177e4 LT |
835 | memcpy(&header.addr1, priv->CurrentBSSID, 6); |
836 | memcpy(&header.addr2, dev->dev_addr, 6); | |
d626f62b | 837 | skb_copy_from_linear_data(skb, &header.addr3, 6); |
1da177e4 | 838 | } |
4d791aad | 839 | |
1da177e4 LT |
840 | if (priv->use_wpa) |
841 | memcpy(&header.addr4, SNAP_RFC1024, 6); | |
842 | ||
843 | header.frame_ctl = cpu_to_le16(frame_ctl); | |
844 | /* Copy the wireless header into the card */ | |
845 | atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE); | |
846 | /* Copy the packet sans its 802.3 header addresses which have been replaced */ | |
847 | atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12); | |
848 | priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE; | |
4d791aad | 849 | |
1da177e4 LT |
850 | /* low bit of first byte of destination tells us if broadcast */ |
851 | tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA); | |
852 | dev->trans_start = jiffies; | |
853 | priv->stats.tx_bytes += len; | |
4d791aad | 854 | |
1da177e4 LT |
855 | spin_unlock_irqrestore(&priv->irqlock, flags); |
856 | spin_unlock_bh(&priv->timerlock); | |
857 | dev_kfree_skb(skb); | |
4d791aad CP |
858 | |
859 | return 0; | |
1da177e4 LT |
860 | } |
861 | ||
4d791aad | 862 | static void atmel_transmit_management_frame(struct atmel_private *priv, |
4ca5253d | 863 | struct ieee80211_hdr_4addr *header, |
1da177e4 LT |
864 | u8 *body, int body_len) |
865 | { | |
866 | u16 buff; | |
4d791aad CP |
867 | int len = MGMT_FRAME_BODY_OFFSET + body_len; |
868 | ||
869 | if (!(buff = find_tx_buff(priv, len))) | |
1da177e4 LT |
870 | return; |
871 | ||
872 | atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET); | |
873 | atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len); | |
874 | priv->tx_buff_tail += len; | |
875 | tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); | |
876 | } | |
4d791aad CP |
877 | |
878 | static void fast_rx_path(struct atmel_private *priv, | |
879 | struct ieee80211_hdr_4addr *header, | |
1da177e4 LT |
880 | u16 msdu_size, u16 rx_packet_loc, u32 crc) |
881 | { | |
882 | /* fast path: unfragmented packet copy directly into skbuf */ | |
4d791aad CP |
883 | u8 mac4[6]; |
884 | struct sk_buff *skb; | |
1da177e4 | 885 | unsigned char *skbp; |
4d791aad | 886 | |
1da177e4 LT |
887 | /* get the final, mac 4 header field, this tells us encapsulation */ |
888 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6); | |
889 | msdu_size -= 6; | |
4d791aad | 890 | |
1da177e4 LT |
891 | if (priv->do_rx_crc) { |
892 | crc = crc32_le(crc, mac4, 6); | |
893 | msdu_size -= 4; | |
894 | } | |
4d791aad | 895 | |
1da177e4 LT |
896 | if (!(skb = dev_alloc_skb(msdu_size + 14))) { |
897 | priv->stats.rx_dropped++; | |
898 | return; | |
899 | } | |
900 | ||
901 | skb_reserve(skb, 2); | |
902 | skbp = skb_put(skb, msdu_size + 12); | |
903 | atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size); | |
4d791aad | 904 | |
1da177e4 LT |
905 | if (priv->do_rx_crc) { |
906 | u32 netcrc; | |
907 | crc = crc32_le(crc, skbp + 12, msdu_size); | |
908 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4); | |
909 | if ((crc ^ 0xffffffff) != netcrc) { | |
910 | priv->stats.rx_crc_errors++; | |
911 | dev_kfree_skb(skb); | |
912 | return; | |
913 | } | |
914 | } | |
4d791aad | 915 | |
1da177e4 | 916 | memcpy(skbp, header->addr1, 6); /* destination address */ |
4d791aad | 917 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
918 | memcpy(&skbp[6], header->addr3, 6); |
919 | else | |
920 | memcpy(&skbp[6], header->addr2, 6); /* source address */ | |
4d791aad CP |
921 | |
922 | priv->dev->last_rx = jiffies; | |
1da177e4 | 923 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 924 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 LT |
925 | netif_rx(skb); |
926 | priv->stats.rx_bytes += 12 + msdu_size; | |
927 | priv->stats.rx_packets++; | |
928 | } | |
929 | ||
930 | /* Test to see if the packet in card memory at packet_loc has a valid CRC | |
4d791aad CP |
931 | It doesn't matter that this is slow: it is only used to proble the first few |
932 | packets. */ | |
1da177e4 LT |
933 | static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) |
934 | { | |
935 | int i = msdu_size - 4; | |
936 | u32 netcrc, crc = 0xffffffff; | |
937 | ||
938 | if (msdu_size < 4) | |
939 | return 0; | |
940 | ||
941 | atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4); | |
4d791aad | 942 | |
1da177e4 LT |
943 | atmel_writeAR(priv->dev, packet_loc); |
944 | while (i--) { | |
945 | u8 octet = atmel_read8(priv->dev, DR); | |
946 | crc = crc32_le(crc, &octet, 1); | |
947 | } | |
948 | ||
949 | return (crc ^ 0xffffffff) == netcrc; | |
950 | } | |
951 | ||
4d791aad CP |
952 | static void frag_rx_path(struct atmel_private *priv, |
953 | struct ieee80211_hdr_4addr *header, | |
954 | u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, | |
955 | u8 frag_no, int more_frags) | |
1da177e4 | 956 | { |
4d791aad | 957 | u8 mac4[6]; |
1da177e4 LT |
958 | u8 source[6]; |
959 | struct sk_buff *skb; | |
960 | ||
4d791aad | 961 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
962 | memcpy(source, header->addr3, 6); |
963 | else | |
4d791aad CP |
964 | memcpy(source, header->addr2, 6); |
965 | ||
1da177e4 | 966 | rx_packet_loc += 24; /* skip header */ |
4d791aad | 967 | |
1da177e4 LT |
968 | if (priv->do_rx_crc) |
969 | msdu_size -= 4; | |
970 | ||
971 | if (frag_no == 0) { /* first fragment */ | |
972 | atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6); | |
973 | msdu_size -= 6; | |
974 | rx_packet_loc += 6; | |
975 | ||
4d791aad | 976 | if (priv->do_rx_crc) |
1da177e4 | 977 | crc = crc32_le(crc, mac4, 6); |
4d791aad | 978 | |
1da177e4 LT |
979 | priv->frag_seq = seq_no; |
980 | priv->frag_no = 1; | |
981 | priv->frag_len = msdu_size; | |
4d791aad | 982 | memcpy(priv->frag_source, source, 6); |
1da177e4 LT |
983 | memcpy(&priv->rx_buf[6], source, 6); |
984 | memcpy(priv->rx_buf, header->addr1, 6); | |
4d791aad | 985 | |
1da177e4 LT |
986 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size); |
987 | ||
988 | if (priv->do_rx_crc) { | |
989 | u32 netcrc; | |
990 | crc = crc32_le(crc, &priv->rx_buf[12], msdu_size); | |
991 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
992 | if ((crc ^ 0xffffffff) != netcrc) { | |
993 | priv->stats.rx_crc_errors++; | |
994 | memset(priv->frag_source, 0xff, 6); | |
995 | } | |
996 | } | |
4d791aad | 997 | |
1da177e4 LT |
998 | } else if (priv->frag_no == frag_no && |
999 | priv->frag_seq == seq_no && | |
1000 | memcmp(priv->frag_source, source, 6) == 0) { | |
4d791aad CP |
1001 | |
1002 | atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1003 | rx_packet_loc, msdu_size); |
1004 | if (priv->do_rx_crc) { | |
1005 | u32 netcrc; | |
4d791aad CP |
1006 | crc = crc32_le(crc, |
1007 | &priv->rx_buf[12 + priv->frag_len], | |
1da177e4 LT |
1008 | msdu_size); |
1009 | atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4); | |
1010 | if ((crc ^ 0xffffffff) != netcrc) { | |
1011 | priv->stats.rx_crc_errors++; | |
1012 | memset(priv->frag_source, 0xff, 6); | |
1013 | more_frags = 1; /* don't send broken assembly */ | |
1014 | } | |
1015 | } | |
4d791aad | 1016 | |
1da177e4 LT |
1017 | priv->frag_len += msdu_size; |
1018 | priv->frag_no++; | |
1019 | ||
1020 | if (!more_frags) { /* last one */ | |
1021 | memset(priv->frag_source, 0xff, 6); | |
1022 | if (!(skb = dev_alloc_skb(priv->frag_len + 14))) { | |
1023 | priv->stats.rx_dropped++; | |
1024 | } else { | |
1025 | skb_reserve(skb, 2); | |
4d791aad | 1026 | memcpy(skb_put(skb, priv->frag_len + 12), |
1da177e4 LT |
1027 | priv->rx_buf, |
1028 | priv->frag_len + 12); | |
1029 | priv->dev->last_rx = jiffies; | |
1da177e4 | 1030 | skb->protocol = eth_type_trans(skb, priv->dev); |
4d791aad | 1031 | skb->ip_summed = CHECKSUM_NONE; |
1da177e4 LT |
1032 | netif_rx(skb); |
1033 | priv->stats.rx_bytes += priv->frag_len + 12; | |
1034 | priv->stats.rx_packets++; | |
1035 | } | |
1036 | } | |
1da177e4 LT |
1037 | } else |
1038 | priv->wstats.discard.fragment++; | |
1039 | } | |
4d791aad | 1040 | |
1da177e4 LT |
1041 | static void rx_done_irq(struct atmel_private *priv) |
1042 | { | |
1043 | int i; | |
4ca5253d | 1044 | struct ieee80211_hdr_4addr header; |
4d791aad CP |
1045 | |
1046 | for (i = 0; | |
1da177e4 LT |
1047 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && |
1048 | i < priv->host_info.rx_desc_count; | |
1049 | i++) { | |
4d791aad | 1050 | |
1da177e4 LT |
1051 | u16 msdu_size, rx_packet_loc, frame_ctl, seq_control; |
1052 | u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head)); | |
1053 | u32 crc = 0xffffffff; | |
4d791aad | 1054 | |
1da177e4 LT |
1055 | if (status != RX_STATUS_SUCCESS) { |
1056 | if (status == 0xc1) /* determined by experiment */ | |
1057 | priv->wstats.discard.nwid++; | |
1058 | else | |
4d791aad | 1059 | priv->stats.rx_errors++; |
1da177e4 LT |
1060 | goto next; |
1061 | } | |
1062 | ||
1063 | msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head)); | |
1064 | rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head)); | |
4d791aad | 1065 | |
1da177e4 | 1066 | if (msdu_size < 30) { |
4d791aad | 1067 | priv->stats.rx_errors++; |
1da177e4 LT |
1068 | goto next; |
1069 | } | |
4d791aad | 1070 | |
1da177e4 LT |
1071 | /* Get header as far as end of seq_ctl */ |
1072 | atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24); | |
1073 | frame_ctl = le16_to_cpu(header.frame_ctl); | |
1074 | seq_control = le16_to_cpu(header.seq_ctl); | |
1075 | ||
4d791aad CP |
1076 | /* probe for CRC use here if needed once five packets have |
1077 | arrived with the same crc status, we assume we know what's | |
1078 | happening and stop probing */ | |
1da177e4 | 1079 | if (priv->probe_crc) { |
f13baae4 | 1080 | if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) { |
1da177e4 LT |
1081 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); |
1082 | } else { | |
1083 | priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); | |
1084 | } | |
1085 | if (priv->do_rx_crc) { | |
1086 | if (priv->crc_ok_cnt++ > 5) | |
1087 | priv->probe_crc = 0; | |
1088 | } else { | |
1089 | if (priv->crc_ko_cnt++ > 5) | |
1090 | priv->probe_crc = 0; | |
1091 | } | |
1092 | } | |
4d791aad | 1093 | |
1da177e4 | 1094 | /* don't CRC header when WEP in use */ |
f13baae4 | 1095 | if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) { |
1da177e4 LT |
1096 | crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); |
1097 | } | |
1098 | msdu_size -= 24; /* header */ | |
1099 | ||
4d791aad | 1100 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { |
b453872c JG |
1101 | int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; |
1102 | u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; | |
1103 | u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; | |
4d791aad CP |
1104 | |
1105 | if (!more_fragments && packet_fragment_no == 0) { | |
1da177e4 LT |
1106 | fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); |
1107 | } else { | |
1108 | frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc, | |
1109 | packet_sequence_no, packet_fragment_no, more_fragments); | |
1110 | } | |
1111 | } | |
4d791aad | 1112 | |
b453872c | 1113 | if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { |
1da177e4 LT |
1114 | /* copy rest of packet into buffer */ |
1115 | atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); | |
4d791aad | 1116 | |
1da177e4 LT |
1117 | /* we use the same buffer for frag reassembly and control packets */ |
1118 | memset(priv->frag_source, 0xff, 6); | |
4d791aad | 1119 | |
1da177e4 LT |
1120 | if (priv->do_rx_crc) { |
1121 | /* last 4 octets is crc */ | |
1122 | msdu_size -= 4; | |
1123 | crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size); | |
1124 | if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) { | |
1125 | priv->stats.rx_crc_errors++; | |
1126 | goto next; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | atmel_management_frame(priv, &header, msdu_size, | |
1131 | atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head))); | |
4d791aad | 1132 | } |
1da177e4 | 1133 | |
4d791aad | 1134 | next: |
1da177e4 | 1135 | /* release descriptor */ |
4d791aad CP |
1136 | atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED); |
1137 | ||
1da177e4 | 1138 | if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1)) |
4d791aad | 1139 | priv->rx_desc_head++; |
1da177e4 LT |
1140 | else |
1141 | priv->rx_desc_head = 0; | |
1142 | } | |
4d791aad | 1143 | } |
1da177e4 | 1144 | |
7d12e780 | 1145 | static irqreturn_t service_interrupt(int irq, void *dev_id) |
1da177e4 LT |
1146 | { |
1147 | struct net_device *dev = (struct net_device *) dev_id; | |
1148 | struct atmel_private *priv = netdev_priv(dev); | |
1149 | u8 isr; | |
1150 | int i = -1; | |
4d791aad | 1151 | static u8 irq_order[] = { |
1da177e4 LT |
1152 | ISR_OUT_OF_RANGE, |
1153 | ISR_RxCOMPLETE, | |
1154 | ISR_TxCOMPLETE, | |
1155 | ISR_RxFRAMELOST, | |
1156 | ISR_FATAL_ERROR, | |
1157 | ISR_COMMAND_COMPLETE, | |
1158 | ISR_IBSS_MERGE, | |
1159 | ISR_GENERIC_IRQ | |
1160 | }; | |
1da177e4 | 1161 | |
4d791aad | 1162 | if (priv->card && priv->present_callback && |
1da177e4 LT |
1163 | !(*priv->present_callback)(priv->card)) |
1164 | return IRQ_HANDLED; | |
1165 | ||
1166 | /* In this state upper-level code assumes it can mess with | |
1167 | the card unhampered by interrupts which may change register state. | |
1168 | Note that even though the card shouldn't generate interrupts | |
4d791aad | 1169 | the inturrupt line may be shared. This allows card setup |
1da177e4 LT |
1170 | to go on without disabling interrupts for a long time. */ |
1171 | if (priv->station_state == STATION_STATE_DOWN) | |
1172 | return IRQ_NONE; | |
4d791aad | 1173 | |
1da177e4 LT |
1174 | atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */ |
1175 | ||
1176 | while (1) { | |
1177 | if (!atmel_lock_mac(priv)) { | |
1178 | /* failed to contact card */ | |
1179 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1180 | return IRQ_HANDLED; | |
1181 | } | |
4d791aad | 1182 | |
1da177e4 LT |
1183 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1184 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1185 | |
1da177e4 LT |
1186 | if (!isr) { |
1187 | atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */ | |
1188 | return i == -1 ? IRQ_NONE : IRQ_HANDLED; | |
1189 | } | |
4d791aad | 1190 | |
1da177e4 | 1191 | atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */ |
4d791aad | 1192 | |
b4341135 | 1193 | for (i = 0; i < ARRAY_SIZE(irq_order); i++) |
1da177e4 LT |
1194 | if (isr & irq_order[i]) |
1195 | break; | |
4d791aad | 1196 | |
1da177e4 LT |
1197 | if (!atmel_lock_mac(priv)) { |
1198 | /* failed to contact card */ | |
1199 | printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name); | |
1200 | return IRQ_HANDLED; | |
1201 | } | |
4d791aad | 1202 | |
1da177e4 LT |
1203 | isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET)); |
1204 | isr ^= irq_order[i]; | |
1205 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr); | |
1206 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad | 1207 | |
1da177e4 | 1208 | switch (irq_order[i]) { |
4d791aad CP |
1209 | |
1210 | case ISR_OUT_OF_RANGE: | |
1211 | if (priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
1212 | priv->station_state == STATION_STATE_READY) { |
1213 | priv->station_is_associated = 0; | |
1214 | atmel_scan(priv, 1); | |
1215 | } | |
1216 | break; | |
1217 | ||
1218 | case ISR_RxFRAMELOST: | |
1219 | priv->wstats.discard.misc++; | |
1220 | /* fall through */ | |
1221 | case ISR_RxCOMPLETE: | |
4d791aad | 1222 | rx_done_irq(priv); |
1da177e4 | 1223 | break; |
4d791aad | 1224 | |
1da177e4 | 1225 | case ISR_TxCOMPLETE: |
4d791aad | 1226 | tx_done_irq(priv); |
1da177e4 | 1227 | break; |
4d791aad | 1228 | |
1da177e4 LT |
1229 | case ISR_FATAL_ERROR: |
1230 | printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name); | |
1231 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
1232 | break; | |
4d791aad CP |
1233 | |
1234 | case ISR_COMMAND_COMPLETE: | |
1da177e4 LT |
1235 | atmel_command_irq(priv); |
1236 | break; | |
1237 | ||
1238 | case ISR_IBSS_MERGE: | |
4d791aad | 1239 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, |
1da177e4 LT |
1240 | priv->CurrentBSSID, 6); |
1241 | /* The WPA stuff cares about the current AP address */ | |
1242 | if (priv->use_wpa) | |
1243 | build_wpa_mib(priv); | |
1244 | break; | |
1245 | case ISR_GENERIC_IRQ: | |
1246 | printk(KERN_INFO "%s: Generic_irq received.\n", dev->name); | |
1247 | break; | |
1248 | } | |
4d791aad | 1249 | } |
1da177e4 LT |
1250 | } |
1251 | ||
4d791aad | 1252 | static struct net_device_stats *atmel_get_stats(struct net_device *dev) |
1da177e4 LT |
1253 | { |
1254 | struct atmel_private *priv = netdev_priv(dev); | |
1255 | return &priv->stats; | |
1256 | } | |
1257 | ||
4d791aad | 1258 | static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) |
1da177e4 LT |
1259 | { |
1260 | struct atmel_private *priv = netdev_priv(dev); | |
1261 | ||
4d791aad | 1262 | /* update the link quality here in case we are seeing no beacons |
1da177e4 LT |
1263 | at all to drive the process */ |
1264 | atmel_smooth_qual(priv); | |
4d791aad | 1265 | |
1da177e4 LT |
1266 | priv->wstats.status = priv->station_state; |
1267 | ||
1268 | if (priv->operating_mode == IW_MODE_INFRA) { | |
1269 | if (priv->station_state != STATION_STATE_READY) { | |
1270 | priv->wstats.qual.qual = 0; | |
1271 | priv->wstats.qual.level = 0; | |
1272 | priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID | |
1273 | | IW_QUAL_LEVEL_INVALID); | |
1274 | } | |
1275 | priv->wstats.qual.noise = 0; | |
1276 | priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID; | |
1277 | } else { | |
1278 | /* Quality levels cannot be determined in ad-hoc mode, | |
1279 | because we can 'hear' more that one remote station. */ | |
1280 | priv->wstats.qual.qual = 0; | |
1281 | priv->wstats.qual.level = 0; | |
1282 | priv->wstats.qual.noise = 0; | |
1283 | priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID | |
1284 | | IW_QUAL_LEVEL_INVALID | |
1285 | | IW_QUAL_NOISE_INVALID; | |
1286 | priv->wstats.miss.beacon = 0; | |
1287 | } | |
4d791aad CP |
1288 | |
1289 | return &priv->wstats; | |
1da177e4 LT |
1290 | } |
1291 | ||
1292 | static int atmel_change_mtu(struct net_device *dev, int new_mtu) | |
1293 | { | |
1294 | if ((new_mtu < 68) || (new_mtu > 2312)) | |
1295 | return -EINVAL; | |
1296 | dev->mtu = new_mtu; | |
1297 | return 0; | |
1298 | } | |
1299 | ||
1300 | static int atmel_set_mac_address(struct net_device *dev, void *p) | |
1301 | { | |
1302 | struct sockaddr *addr = p; | |
4d791aad | 1303 | |
1da177e4 LT |
1304 | memcpy (dev->dev_addr, addr->sa_data, dev->addr_len); |
1305 | return atmel_open(dev); | |
1306 | } | |
1307 | ||
1308 | EXPORT_SYMBOL(atmel_open); | |
1309 | ||
4d791aad | 1310 | int atmel_open(struct net_device *dev) |
1da177e4 LT |
1311 | { |
1312 | struct atmel_private *priv = netdev_priv(dev); | |
1313 | int i, channel; | |
1314 | ||
1315 | /* any scheduled timer is no longer needed and might screw things up.. */ | |
1316 | del_timer_sync(&priv->management_timer); | |
4d791aad | 1317 | |
1da177e4 LT |
1318 | /* Interrupts will not touch the card once in this state... */ |
1319 | priv->station_state = STATION_STATE_DOWN; | |
1320 | ||
1321 | if (priv->new_SSID_size) { | |
1322 | memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size); | |
1323 | priv->SSID_size = priv->new_SSID_size; | |
1324 | priv->new_SSID_size = 0; | |
1325 | } | |
1326 | priv->BSS_list_entries = 0; | |
1327 | ||
1328 | priv->AuthenticationRequestRetryCnt = 0; | |
1329 | priv->AssociationRequestRetryCnt = 0; | |
1330 | priv->ReAssociationRequestRetryCnt = 0; | |
1331 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
1332 | priv->ExpectedAuthentTransactionSeqNum = 0x0002; | |
1333 | ||
1334 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
1335 | priv->station_is_associated = 0; | |
1336 | ||
4d791aad | 1337 | if (!reset_atmel_card(dev)) |
1da177e4 LT |
1338 | return -EAGAIN; |
1339 | ||
1340 | if (priv->config_reg_domain) { | |
1341 | priv->reg_domain = priv->config_reg_domain; | |
1342 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain); | |
1343 | } else { | |
1344 | priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS); | |
b4341135 | 1345 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1346 | if (priv->reg_domain == channel_table[i].reg_domain) |
1347 | break; | |
b4341135 | 1348 | if (i == ARRAY_SIZE(channel_table)) { |
1da177e4 LT |
1349 | priv->reg_domain = REG_DOMAIN_MKK1; |
1350 | printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name); | |
4d791aad | 1351 | } |
1da177e4 | 1352 | } |
4d791aad | 1353 | |
1da177e4 LT |
1354 | if ((channel = atmel_validate_channel(priv, priv->channel))) |
1355 | priv->channel = channel; | |
1356 | ||
4d791aad CP |
1357 | /* this moves station_state on.... */ |
1358 | atmel_scan(priv, 1); | |
1da177e4 LT |
1359 | |
1360 | atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */ | |
1361 | return 0; | |
1362 | } | |
1363 | ||
4d791aad | 1364 | static int atmel_close(struct net_device *dev) |
1da177e4 LT |
1365 | { |
1366 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1367 | |
9a6301c1 DW |
1368 | /* Send event to userspace that we are disassociating */ |
1369 | if (priv->station_state == STATION_STATE_READY) { | |
1370 | union iwreq_data wrqu; | |
1371 | ||
1372 | wrqu.data.length = 0; | |
1373 | wrqu.data.flags = 0; | |
1374 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
1375 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
1376 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
1377 | } | |
1378 | ||
1da177e4 | 1379 | atmel_enter_state(priv, STATION_STATE_DOWN); |
4d791aad CP |
1380 | |
1381 | if (priv->bus_type == BUS_TYPE_PCCARD) | |
1da177e4 LT |
1382 | atmel_write16(dev, GCR, 0x0060); |
1383 | atmel_write16(dev, GCR, 0x0040); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | static int atmel_validate_channel(struct atmel_private *priv, int channel) | |
1388 | { | |
1389 | /* check that channel is OK, if so return zero, | |
1390 | else return suitable default channel */ | |
1391 | int i; | |
1392 | ||
b4341135 | 1393 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1394 | if (priv->reg_domain == channel_table[i].reg_domain) { |
1395 | if (channel >= channel_table[i].min && | |
1396 | channel <= channel_table[i].max) | |
1397 | return 0; | |
1398 | else | |
1399 | return channel_table[i].min; | |
1400 | } | |
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | static int atmel_proc_output (char *buf, struct atmel_private *priv) | |
1405 | { | |
1406 | int i; | |
1407 | char *p = buf; | |
1408 | char *s, *r, *c; | |
4d791aad CP |
1409 | |
1410 | p += sprintf(p, "Driver version:\t\t%d.%d\n", | |
1411 | DRIVER_MAJOR, DRIVER_MINOR); | |
1412 | ||
1da177e4 | 1413 | if (priv->station_state != STATION_STATE_DOWN) { |
4d791aad CP |
1414 | p += sprintf(p, "Firmware version:\t%d.%d build %d\n" |
1415 | "Firmware location:\t", | |
1da177e4 LT |
1416 | priv->host_info.major_version, |
1417 | priv->host_info.minor_version, | |
1418 | priv->host_info.build_version); | |
4d791aad CP |
1419 | |
1420 | if (priv->card_type != CARD_TYPE_EEPROM) | |
1da177e4 | 1421 | p += sprintf(p, "on card\n"); |
4d791aad CP |
1422 | else if (priv->firmware) |
1423 | p += sprintf(p, "%s loaded by host\n", | |
1424 | priv->firmware_id); | |
1da177e4 | 1425 | else |
4d791aad CP |
1426 | p += sprintf(p, "%s loaded by hotplug\n", |
1427 | priv->firmware_id); | |
1428 | ||
1429 | switch (priv->card_type) { | |
1da177e4 LT |
1430 | case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break; |
1431 | case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break; | |
1432 | case CARD_TYPE_EEPROM: c = "EEPROM"; break; | |
1433 | default: c = "<unknown>"; | |
1434 | } | |
1435 | ||
1da177e4 | 1436 | r = "<unknown>"; |
b4341135 | 1437 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) |
1da177e4 LT |
1438 | if (priv->reg_domain == channel_table[i].reg_domain) |
1439 | r = channel_table[i].name; | |
4d791aad | 1440 | |
1da177e4 LT |
1441 | p += sprintf(p, "MAC memory type:\t%s\n", c); |
1442 | p += sprintf(p, "Regulatory domain:\t%s\n", r); | |
4d791aad | 1443 | p += sprintf(p, "Host CRC checking:\t%s\n", |
1da177e4 LT |
1444 | priv->do_rx_crc ? "On" : "Off"); |
1445 | p += sprintf(p, "WPA-capable firmware:\t%s\n", | |
1446 | priv->use_wpa ? "Yes" : "No"); | |
1447 | } | |
4d791aad | 1448 | |
1da177e4 LT |
1449 | switch(priv->station_state) { |
1450 | case STATION_STATE_SCANNING: s = "Scanning"; break; | |
1451 | case STATION_STATE_JOINNING: s = "Joining"; break; | |
1452 | case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break; | |
1453 | case STATION_STATE_ASSOCIATING: s = "Associating"; break; | |
1454 | case STATION_STATE_READY: s = "Ready"; break; | |
1455 | case STATION_STATE_REASSOCIATING: s = "Reassociating"; break; | |
1456 | case STATION_STATE_MGMT_ERROR: s = "Management error"; break; | |
1457 | case STATION_STATE_DOWN: s = "Down"; break; | |
1458 | default: s = "<unknown>"; | |
1459 | } | |
4d791aad | 1460 | |
1da177e4 | 1461 | p += sprintf(p, "Current state:\t\t%s\n", s); |
4d791aad | 1462 | return p - buf; |
1da177e4 LT |
1463 | } |
1464 | ||
1465 | static int atmel_read_proc(char *page, char **start, off_t off, | |
1466 | int count, int *eof, void *data) | |
1467 | { | |
1468 | struct atmel_private *priv = data; | |
1469 | int len = atmel_proc_output (page, priv); | |
1470 | if (len <= off+count) *eof = 1; | |
1471 | *start = page + off; | |
1472 | len -= off; | |
1473 | if (len>count) len = count; | |
1474 | if (len<0) len = 0; | |
1475 | return len; | |
1476 | } | |
1477 | ||
4d791aad CP |
1478 | struct net_device *init_atmel_card(unsigned short irq, unsigned long port, |
1479 | const AtmelFWType fw_type, | |
1480 | struct device *sys_dev, | |
1481 | int (*card_present)(void *), void *card) | |
1da177e4 | 1482 | { |
5bc4c36d | 1483 | struct proc_dir_entry *ent; |
1da177e4 LT |
1484 | struct net_device *dev; |
1485 | struct atmel_private *priv; | |
1486 | int rc; | |
0795af57 | 1487 | DECLARE_MAC_BUF(mac); |
1da177e4 LT |
1488 | |
1489 | /* Create the network device object. */ | |
1490 | dev = alloc_etherdev(sizeof(*priv)); | |
1491 | if (!dev) { | |
4d791aad | 1492 | printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n"); |
1da177e4 LT |
1493 | return NULL; |
1494 | } | |
1495 | if (dev_alloc_name(dev, dev->name) < 0) { | |
4d791aad | 1496 | printk(KERN_ERR "atmel: Couldn't get name!\n"); |
1da177e4 LT |
1497 | goto err_out_free; |
1498 | } | |
1499 | ||
1500 | priv = netdev_priv(dev); | |
1501 | priv->dev = dev; | |
1502 | priv->sys_dev = sys_dev; | |
1503 | priv->present_callback = card_present; | |
1504 | priv->card = card; | |
1505 | priv->firmware = NULL; | |
1506 | priv->firmware_id[0] = '\0'; | |
1507 | priv->firmware_type = fw_type; | |
1508 | if (firmware) /* module parameter */ | |
1509 | strcpy(priv->firmware_id, firmware); | |
1510 | priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI; | |
1511 | priv->station_state = STATION_STATE_DOWN; | |
1512 | priv->do_rx_crc = 0; | |
1513 | /* For PCMCIA cards, some chips need CRC, some don't | |
1514 | so we have to probe. */ | |
1515 | if (priv->bus_type == BUS_TYPE_PCCARD) { | |
1516 | priv->probe_crc = 1; | |
1517 | priv->crc_ok_cnt = priv->crc_ko_cnt = 0; | |
1518 | } else | |
1519 | priv->probe_crc = 0; | |
1520 | memset(&priv->stats, 0, sizeof(priv->stats)); | |
1521 | memset(&priv->wstats, 0, sizeof(priv->wstats)); | |
1522 | priv->last_qual = jiffies; | |
1523 | priv->last_beacon_timestamp = 0; | |
1524 | memset(priv->frag_source, 0xff, sizeof(priv->frag_source)); | |
1525 | memset(priv->BSSID, 0, 6); | |
1526 | priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */ | |
1527 | priv->station_was_associated = 0; | |
4d791aad | 1528 | |
1da177e4 LT |
1529 | priv->last_survey = jiffies; |
1530 | priv->preamble = LONG_PREAMBLE; | |
1531 | priv->operating_mode = IW_MODE_INFRA; | |
1532 | priv->connect_to_any_BSS = 0; | |
1533 | priv->config_reg_domain = 0; | |
1534 | priv->reg_domain = 0; | |
1535 | priv->tx_rate = 3; | |
1536 | priv->auto_tx_rate = 1; | |
1537 | priv->channel = 4; | |
1538 | priv->power_mode = 0; | |
1539 | priv->SSID[0] = '\0'; | |
1540 | priv->SSID_size = 0; | |
1541 | priv->new_SSID_size = 0; | |
1542 | priv->frag_threshold = 2346; | |
1543 | priv->rts_threshold = 2347; | |
1544 | priv->short_retry = 7; | |
1545 | priv->long_retry = 4; | |
1546 | ||
1547 | priv->wep_is_on = 0; | |
1548 | priv->default_key = 0; | |
1549 | priv->encryption_level = 0; | |
1550 | priv->exclude_unencrypted = 0; | |
1551 | priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1552 | priv->use_wpa = 0; | |
1553 | memset(priv->wep_keys, 0, sizeof(priv->wep_keys)); | |
1554 | memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); | |
1555 | ||
1556 | priv->default_beacon_period = priv->beacon_period = 100; | |
1557 | priv->listen_interval = 1; | |
1558 | ||
1559 | init_timer(&priv->management_timer); | |
1560 | spin_lock_init(&priv->irqlock); | |
1561 | spin_lock_init(&priv->timerlock); | |
1562 | priv->management_timer.function = atmel_management_timer; | |
1563 | priv->management_timer.data = (unsigned long) dev; | |
4d791aad | 1564 | |
1da177e4 LT |
1565 | dev->open = atmel_open; |
1566 | dev->stop = atmel_close; | |
1567 | dev->change_mtu = atmel_change_mtu; | |
1568 | dev->set_mac_address = atmel_set_mac_address; | |
1569 | dev->hard_start_xmit = start_tx; | |
1570 | dev->get_stats = atmel_get_stats; | |
1da177e4 LT |
1571 | dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def; |
1572 | dev->do_ioctl = atmel_ioctl; | |
1573 | dev->irq = irq; | |
1574 | dev->base_addr = port; | |
4d791aad | 1575 | |
1da177e4 | 1576 | SET_NETDEV_DEV(dev, sys_dev); |
4d791aad | 1577 | |
1fb9df5d | 1578 | if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { |
4d791aad | 1579 | printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc); |
1da177e4 LT |
1580 | goto err_out_free; |
1581 | } | |
1582 | ||
4d791aad | 1583 | if (!request_region(dev->base_addr, 32, |
b16a228d | 1584 | priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) { |
1da177e4 LT |
1585 | goto err_out_irq; |
1586 | } | |
4d791aad | 1587 | |
1da177e4 LT |
1588 | if (register_netdev(dev)) |
1589 | goto err_out_res; | |
4d791aad | 1590 | |
1da177e4 LT |
1591 | if (!probe_atmel_card(dev)){ |
1592 | unregister_netdev(dev); | |
1593 | goto err_out_res; | |
1594 | } | |
4d791aad | 1595 | |
1da177e4 | 1596 | netif_carrier_off(dev); |
4d791aad | 1597 | |
5bc4c36d CL |
1598 | ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv); |
1599 | if (!ent) | |
1600 | printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); | |
4d791aad | 1601 | |
0795af57 JP |
1602 | printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %s\n", |
1603 | dev->name, DRIVER_MAJOR, DRIVER_MINOR, print_mac(mac, dev->dev_addr)); | |
4d791aad | 1604 | |
1da177e4 | 1605 | return dev; |
4d791aad CP |
1606 | |
1607 | err_out_res: | |
b16a228d | 1608 | release_region( dev->base_addr, 32); |
4d791aad | 1609 | err_out_irq: |
1da177e4 | 1610 | free_irq(dev->irq, dev); |
4d791aad | 1611 | err_out_free: |
1da177e4 LT |
1612 | free_netdev(dev); |
1613 | return NULL; | |
1614 | } | |
1615 | ||
1616 | EXPORT_SYMBOL(init_atmel_card); | |
1617 | ||
b16a228d | 1618 | void stop_atmel_card(struct net_device *dev) |
1da177e4 LT |
1619 | { |
1620 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 1621 | |
1da177e4 | 1622 | /* put a brick on it... */ |
4d791aad | 1623 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
1624 | atmel_write16(dev, GCR, 0x0060); |
1625 | atmel_write16(dev, GCR, 0x0040); | |
4d791aad | 1626 | |
1da177e4 LT |
1627 | del_timer_sync(&priv->management_timer); |
1628 | unregister_netdev(dev); | |
1629 | remove_proc_entry("driver/atmel", NULL); | |
1630 | free_irq(dev->irq, dev); | |
b4558ea9 | 1631 | kfree(priv->firmware); |
b16a228d | 1632 | release_region(dev->base_addr, 32); |
1da177e4 LT |
1633 | free_netdev(dev); |
1634 | } | |
1635 | ||
1636 | EXPORT_SYMBOL(stop_atmel_card); | |
1637 | ||
1638 | static int atmel_set_essid(struct net_device *dev, | |
1639 | struct iw_request_info *info, | |
1640 | struct iw_point *dwrq, | |
1641 | char *extra) | |
1642 | { | |
1643 | struct atmel_private *priv = netdev_priv(dev); | |
1644 | ||
1645 | /* Check if we asked for `any' */ | |
1646 | if(dwrq->flags == 0) { | |
1647 | priv->connect_to_any_BSS = 1; | |
1648 | } else { | |
1649 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1650 | ||
1651 | priv->connect_to_any_BSS = 0; | |
4d791aad | 1652 | |
1da177e4 | 1653 | /* Check the size of the string */ |
6a484db4 | 1654 | if (dwrq->length > MAX_SSID_LENGTH) |
4d791aad | 1655 | return -E2BIG; |
1da177e4 LT |
1656 | if (index != 0) |
1657 | return -EINVAL; | |
4d791aad | 1658 | |
6a484db4 JT |
1659 | memcpy(priv->new_SSID, extra, dwrq->length); |
1660 | priv->new_SSID_size = dwrq->length; | |
1da177e4 LT |
1661 | } |
1662 | ||
1663 | return -EINPROGRESS; | |
1664 | } | |
1665 | ||
1666 | static int atmel_get_essid(struct net_device *dev, | |
1667 | struct iw_request_info *info, | |
1668 | struct iw_point *dwrq, | |
1669 | char *extra) | |
1670 | { | |
1671 | struct atmel_private *priv = netdev_priv(dev); | |
1672 | ||
1673 | /* Get the current SSID */ | |
1674 | if (priv->new_SSID_size != 0) { | |
1675 | memcpy(extra, priv->new_SSID, priv->new_SSID_size); | |
d6a13a24 | 1676 | dwrq->length = priv->new_SSID_size; |
1da177e4 LT |
1677 | } else { |
1678 | memcpy(extra, priv->SSID, priv->SSID_size); | |
d6a13a24 | 1679 | dwrq->length = priv->SSID_size; |
1da177e4 | 1680 | } |
4d791aad | 1681 | |
1da177e4 LT |
1682 | dwrq->flags = !priv->connect_to_any_BSS; /* active */ |
1683 | ||
1684 | return 0; | |
1685 | } | |
1686 | ||
1687 | static int atmel_get_wap(struct net_device *dev, | |
1688 | struct iw_request_info *info, | |
1689 | struct sockaddr *awrq, | |
1690 | char *extra) | |
1691 | { | |
1692 | struct atmel_private *priv = netdev_priv(dev); | |
1693 | memcpy(awrq->sa_data, priv->CurrentBSSID, 6); | |
1694 | awrq->sa_family = ARPHRD_ETHER; | |
1695 | ||
1696 | return 0; | |
1697 | } | |
1698 | ||
1699 | static int atmel_set_encode(struct net_device *dev, | |
1700 | struct iw_request_info *info, | |
1701 | struct iw_point *dwrq, | |
1702 | char *extra) | |
1703 | { | |
1704 | struct atmel_private *priv = netdev_priv(dev); | |
1705 | ||
1706 | /* Basic checking: do we have a key to set ? | |
1707 | * Note : with the new API, it's impossible to get a NULL pointer. | |
1708 | * Therefore, we need to check a key size == 0 instead. | |
1709 | * New version of iwconfig properly set the IW_ENCODE_NOKEY flag | |
1710 | * when no key is present (only change flags), but older versions | |
1711 | * don't do it. - Jean II */ | |
1712 | if (dwrq->length > 0) { | |
1713 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
1714 | int current_index = priv->default_key; | |
1715 | /* Check the size of the key */ | |
1716 | if (dwrq->length > 13) { | |
1717 | return -EINVAL; | |
1718 | } | |
1719 | /* Check the index (none -> use current) */ | |
1720 | if (index < 0 || index >= 4) | |
1721 | index = current_index; | |
1722 | else | |
1723 | priv->default_key = index; | |
1724 | /* Set the length */ | |
1725 | if (dwrq->length > 5) | |
1726 | priv->wep_key_len[index] = 13; | |
1727 | else | |
1728 | if (dwrq->length > 0) | |
1729 | priv->wep_key_len[index] = 5; | |
1730 | else | |
1731 | /* Disable the key */ | |
1732 | priv->wep_key_len[index] = 0; | |
1733 | /* Check if the key is not marked as invalid */ | |
5c877fe5 | 1734 | if (!(dwrq->flags & IW_ENCODE_NOKEY)) { |
1da177e4 LT |
1735 | /* Cleanup */ |
1736 | memset(priv->wep_keys[index], 0, 13); | |
1737 | /* Copy the key in the driver */ | |
1738 | memcpy(priv->wep_keys[index], extra, dwrq->length); | |
1739 | } | |
1740 | /* WE specify that if a valid key is set, encryption | |
1741 | * should be enabled (user may turn it off later) | |
1742 | * This is also how "iwconfig ethX key on" works */ | |
4d791aad | 1743 | if (index == current_index && |
1da177e4 LT |
1744 | priv->wep_key_len[index] > 0) { |
1745 | priv->wep_is_on = 1; | |
1746 | priv->exclude_unencrypted = 1; | |
1747 | if (priv->wep_key_len[index] > 5) { | |
9a6301c1 | 1748 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; |
1da177e4 LT |
1749 | priv->encryption_level = 2; |
1750 | } else { | |
9a6301c1 | 1751 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; |
1da177e4 LT |
1752 | priv->encryption_level = 1; |
1753 | } | |
1754 | } | |
1755 | } else { | |
1756 | /* Do we want to just set the transmit key index ? */ | |
1757 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1758 | if (index >= 0 && index < 4) { |
1da177e4 LT |
1759 | priv->default_key = index; |
1760 | } else | |
1761 | /* Don't complain if only change the mode */ | |
4d791aad | 1762 | if (!dwrq->flags & IW_ENCODE_MODE) { |
1da177e4 LT |
1763 | return -EINVAL; |
1764 | } | |
1765 | } | |
1766 | /* Read the flags */ | |
4d791aad | 1767 | if (dwrq->flags & IW_ENCODE_DISABLED) { |
1da177e4 | 1768 | priv->wep_is_on = 0; |
4d791aad | 1769 | priv->encryption_level = 0; |
1da177e4 LT |
1770 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; |
1771 | } else { | |
1772 | priv->wep_is_on = 1; | |
1773 | if (priv->wep_key_len[priv->default_key] > 5) { | |
1774 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1775 | priv->encryption_level = 2; | |
1776 | } else { | |
1777 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1778 | priv->encryption_level = 1; | |
1779 | } | |
1780 | } | |
4d791aad | 1781 | if (dwrq->flags & IW_ENCODE_RESTRICTED) |
1da177e4 | 1782 | priv->exclude_unencrypted = 1; |
4d791aad | 1783 | if(dwrq->flags & IW_ENCODE_OPEN) |
1da177e4 | 1784 | priv->exclude_unencrypted = 0; |
4d791aad | 1785 | |
1da177e4 LT |
1786 | return -EINPROGRESS; /* Call commit handler */ |
1787 | } | |
1788 | ||
1da177e4 LT |
1789 | static int atmel_get_encode(struct net_device *dev, |
1790 | struct iw_request_info *info, | |
1791 | struct iw_point *dwrq, | |
1792 | char *extra) | |
1793 | { | |
1794 | struct atmel_private *priv = netdev_priv(dev); | |
1795 | int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; | |
4d791aad | 1796 | |
1da177e4 LT |
1797 | if (!priv->wep_is_on) |
1798 | dwrq->flags = IW_ENCODE_DISABLED; | |
b16a228d | 1799 | else { |
1800 | if (priv->exclude_unencrypted) | |
1801 | dwrq->flags = IW_ENCODE_RESTRICTED; | |
1802 | else | |
1803 | dwrq->flags = IW_ENCODE_OPEN; | |
1804 | } | |
1da177e4 LT |
1805 | /* Which key do we want ? -1 -> tx index */ |
1806 | if (index < 0 || index >= 4) | |
1807 | index = priv->default_key; | |
1808 | dwrq->flags |= index + 1; | |
1809 | /* Copy the key to the user buffer */ | |
1810 | dwrq->length = priv->wep_key_len[index]; | |
1811 | if (dwrq->length > 16) { | |
1812 | dwrq->length=0; | |
1813 | } else { | |
1814 | memset(extra, 0, 16); | |
1815 | memcpy(extra, priv->wep_keys[index], dwrq->length); | |
1816 | } | |
4d791aad | 1817 | |
1da177e4 LT |
1818 | return 0; |
1819 | } | |
1820 | ||
9a6301c1 DW |
1821 | static int atmel_set_encodeext(struct net_device *dev, |
1822 | struct iw_request_info *info, | |
1823 | union iwreq_data *wrqu, | |
1824 | char *extra) | |
1825 | { | |
1826 | struct atmel_private *priv = netdev_priv(dev); | |
1827 | struct iw_point *encoding = &wrqu->encoding; | |
1828 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
0d467502 | 1829 | int idx, key_len, alg = ext->alg, set_key = 1; |
9a6301c1 DW |
1830 | |
1831 | /* Determine and validate the key index */ | |
1832 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1833 | if (idx) { | |
1834 | if (idx < 1 || idx > WEP_KEYS) | |
1835 | return -EINVAL; | |
1836 | idx--; | |
1837 | } else | |
1838 | idx = priv->default_key; | |
1839 | ||
0d467502 DW |
1840 | if (encoding->flags & IW_ENCODE_DISABLED) |
1841 | alg = IW_ENCODE_ALG_NONE; | |
9a6301c1 | 1842 | |
0d467502 | 1843 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { |
9a6301c1 | 1844 | priv->default_key = idx; |
0d467502 DW |
1845 | set_key = ext->key_len > 0 ? 1 : 0; |
1846 | } | |
9a6301c1 | 1847 | |
0d467502 DW |
1848 | if (set_key) { |
1849 | /* Set the requested key first */ | |
1850 | switch (alg) { | |
1851 | case IW_ENCODE_ALG_NONE: | |
1852 | priv->wep_is_on = 0; | |
1853 | priv->encryption_level = 0; | |
1854 | priv->pairwise_cipher_suite = CIPHER_SUITE_NONE; | |
1855 | break; | |
1856 | case IW_ENCODE_ALG_WEP: | |
1857 | if (ext->key_len > 5) { | |
1858 | priv->wep_key_len[idx] = 13; | |
1859 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128; | |
1860 | priv->encryption_level = 2; | |
1861 | } else if (ext->key_len > 0) { | |
1862 | priv->wep_key_len[idx] = 5; | |
1863 | priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64; | |
1864 | priv->encryption_level = 1; | |
1865 | } else { | |
1866 | return -EINVAL; | |
1867 | } | |
1868 | priv->wep_is_on = 1; | |
1869 | memset(priv->wep_keys[idx], 0, 13); | |
1870 | key_len = min ((int)ext->key_len, priv->wep_key_len[idx]); | |
1871 | memcpy(priv->wep_keys[idx], ext->key, key_len); | |
1872 | break; | |
1873 | default: | |
9a6301c1 DW |
1874 | return -EINVAL; |
1875 | } | |
9a6301c1 DW |
1876 | } |
1877 | ||
1878 | return -EINPROGRESS; | |
1879 | } | |
1880 | ||
1881 | static int atmel_get_encodeext(struct net_device *dev, | |
1882 | struct iw_request_info *info, | |
1883 | union iwreq_data *wrqu, | |
1884 | char *extra) | |
1885 | { | |
1886 | struct atmel_private *priv = netdev_priv(dev); | |
1887 | struct iw_point *encoding = &wrqu->encoding; | |
1888 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
1889 | int idx, max_key_len; | |
1890 | ||
1891 | max_key_len = encoding->length - sizeof(*ext); | |
1892 | if (max_key_len < 0) | |
1893 | return -EINVAL; | |
1894 | ||
1895 | idx = encoding->flags & IW_ENCODE_INDEX; | |
1896 | if (idx) { | |
1897 | if (idx < 1 || idx > WEP_KEYS) | |
1898 | return -EINVAL; | |
1899 | idx--; | |
1900 | } else | |
1901 | idx = priv->default_key; | |
1902 | ||
1903 | encoding->flags = idx + 1; | |
1904 | memset(ext, 0, sizeof(*ext)); | |
5c877fe5 | 1905 | |
9a6301c1 DW |
1906 | if (!priv->wep_is_on) { |
1907 | ext->alg = IW_ENCODE_ALG_NONE; | |
1908 | ext->key_len = 0; | |
1909 | encoding->flags |= IW_ENCODE_DISABLED; | |
1910 | } else { | |
1911 | if (priv->encryption_level > 0) | |
1912 | ext->alg = IW_ENCODE_ALG_WEP; | |
1913 | else | |
1914 | return -EINVAL; | |
1915 | ||
1916 | ext->key_len = priv->wep_key_len[idx]; | |
1917 | memcpy(ext->key, priv->wep_keys[idx], ext->key_len); | |
1918 | encoding->flags |= IW_ENCODE_ENABLED; | |
1919 | } | |
1920 | ||
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | static int atmel_set_auth(struct net_device *dev, | |
1925 | struct iw_request_info *info, | |
1926 | union iwreq_data *wrqu, char *extra) | |
1927 | { | |
1928 | struct atmel_private *priv = netdev_priv(dev); | |
1929 | struct iw_param *param = &wrqu->param; | |
1930 | ||
1931 | switch (param->flags & IW_AUTH_INDEX) { | |
1932 | case IW_AUTH_WPA_VERSION: | |
1933 | case IW_AUTH_CIPHER_PAIRWISE: | |
1934 | case IW_AUTH_CIPHER_GROUP: | |
1935 | case IW_AUTH_KEY_MGMT: | |
1936 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
1937 | case IW_AUTH_PRIVACY_INVOKED: | |
1938 | /* | |
1939 | * atmel does not use these parameters | |
1940 | */ | |
1941 | break; | |
1942 | ||
1943 | case IW_AUTH_DROP_UNENCRYPTED: | |
1944 | priv->exclude_unencrypted = param->value ? 1 : 0; | |
1945 | break; | |
1946 | ||
1947 | case IW_AUTH_80211_AUTH_ALG: { | |
1948 | if (param->value & IW_AUTH_ALG_SHARED_KEY) { | |
1949 | priv->exclude_unencrypted = 1; | |
1950 | } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { | |
1951 | priv->exclude_unencrypted = 0; | |
1952 | } else | |
1953 | return -EINVAL; | |
1954 | break; | |
1955 | } | |
1956 | ||
1957 | case IW_AUTH_WPA_ENABLED: | |
1958 | /* Silently accept disable of WPA */ | |
1959 | if (param->value > 0) | |
1960 | return -EOPNOTSUPP; | |
1961 | break; | |
1962 | ||
1963 | default: | |
1964 | return -EOPNOTSUPP; | |
1965 | } | |
1966 | return -EINPROGRESS; | |
1967 | } | |
1968 | ||
1969 | static int atmel_get_auth(struct net_device *dev, | |
1970 | struct iw_request_info *info, | |
1971 | union iwreq_data *wrqu, char *extra) | |
1972 | { | |
1973 | struct atmel_private *priv = netdev_priv(dev); | |
1974 | struct iw_param *param = &wrqu->param; | |
1975 | ||
1976 | switch (param->flags & IW_AUTH_INDEX) { | |
1977 | case IW_AUTH_DROP_UNENCRYPTED: | |
1978 | param->value = priv->exclude_unencrypted; | |
1979 | break; | |
1980 | ||
1981 | case IW_AUTH_80211_AUTH_ALG: | |
1982 | if (priv->exclude_unencrypted == 1) | |
1983 | param->value = IW_AUTH_ALG_SHARED_KEY; | |
1984 | else | |
1985 | param->value = IW_AUTH_ALG_OPEN_SYSTEM; | |
1986 | break; | |
1987 | ||
1988 | case IW_AUTH_WPA_ENABLED: | |
1989 | param->value = 0; | |
1990 | break; | |
1991 | ||
1992 | default: | |
1993 | return -EOPNOTSUPP; | |
1994 | } | |
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | ||
1da177e4 LT |
1999 | static int atmel_get_name(struct net_device *dev, |
2000 | struct iw_request_info *info, | |
2001 | char *cwrq, | |
2002 | char *extra) | |
2003 | { | |
2004 | strcpy(cwrq, "IEEE 802.11-DS"); | |
2005 | return 0; | |
2006 | } | |
2007 | ||
2008 | static int atmel_set_rate(struct net_device *dev, | |
2009 | struct iw_request_info *info, | |
2010 | struct iw_param *vwrq, | |
2011 | char *extra) | |
2012 | { | |
2013 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2014 | |
1da177e4 LT |
2015 | if (vwrq->fixed == 0) { |
2016 | priv->tx_rate = 3; | |
2017 | priv->auto_tx_rate = 1; | |
2018 | } else { | |
2019 | priv->auto_tx_rate = 0; | |
4d791aad | 2020 | |
1da177e4 | 2021 | /* Which type of value ? */ |
4d791aad | 2022 | if ((vwrq->value < 4) && (vwrq->value >= 0)) { |
1da177e4 | 2023 | /* Setting by rate index */ |
4d791aad | 2024 | priv->tx_rate = vwrq->value; |
1da177e4 LT |
2025 | } else { |
2026 | /* Setting by frequency value */ | |
2027 | switch (vwrq->value) { | |
2028 | case 1000000: priv->tx_rate = 0; break; | |
2029 | case 2000000: priv->tx_rate = 1; break; | |
2030 | case 5500000: priv->tx_rate = 2; break; | |
2031 | case 11000000: priv->tx_rate = 3; break; | |
2032 | default: return -EINVAL; | |
2033 | } | |
2034 | } | |
2035 | } | |
2036 | ||
2037 | return -EINPROGRESS; | |
2038 | } | |
2039 | ||
2040 | static int atmel_set_mode(struct net_device *dev, | |
2041 | struct iw_request_info *info, | |
2042 | __u32 *uwrq, | |
2043 | char *extra) | |
2044 | { | |
2045 | struct atmel_private *priv = netdev_priv(dev); | |
2046 | ||
2047 | if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA) | |
2048 | return -EINVAL; | |
2049 | ||
2050 | priv->operating_mode = *uwrq; | |
4d791aad | 2051 | return -EINPROGRESS; |
1da177e4 LT |
2052 | } |
2053 | ||
2054 | static int atmel_get_mode(struct net_device *dev, | |
2055 | struct iw_request_info *info, | |
2056 | __u32 *uwrq, | |
2057 | char *extra) | |
2058 | { | |
2059 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2060 | |
1da177e4 LT |
2061 | *uwrq = priv->operating_mode; |
2062 | return 0; | |
2063 | } | |
2064 | ||
2065 | static int atmel_get_rate(struct net_device *dev, | |
2066 | struct iw_request_info *info, | |
2067 | struct iw_param *vwrq, | |
2068 | char *extra) | |
2069 | { | |
2070 | struct atmel_private *priv = netdev_priv(dev); | |
2071 | ||
2072 | if (priv->auto_tx_rate) { | |
2073 | vwrq->fixed = 0; | |
2074 | vwrq->value = 11000000; | |
2075 | } else { | |
2076 | vwrq->fixed = 1; | |
2077 | switch(priv->tx_rate) { | |
2078 | case 0: vwrq->value = 1000000; break; | |
2079 | case 1: vwrq->value = 2000000; break; | |
2080 | case 2: vwrq->value = 5500000; break; | |
2081 | case 3: vwrq->value = 11000000; break; | |
2082 | } | |
2083 | } | |
2084 | return 0; | |
2085 | } | |
2086 | ||
2087 | static int atmel_set_power(struct net_device *dev, | |
2088 | struct iw_request_info *info, | |
2089 | struct iw_param *vwrq, | |
2090 | char *extra) | |
2091 | { | |
2092 | struct atmel_private *priv = netdev_priv(dev); | |
2093 | priv->power_mode = vwrq->disabled ? 0 : 1; | |
2094 | return -EINPROGRESS; | |
2095 | } | |
2096 | ||
2097 | static int atmel_get_power(struct net_device *dev, | |
2098 | struct iw_request_info *info, | |
2099 | struct iw_param *vwrq, | |
2100 | char *extra) | |
2101 | { | |
2102 | struct atmel_private *priv = netdev_priv(dev); | |
2103 | vwrq->disabled = priv->power_mode ? 0 : 1; | |
2104 | vwrq->flags = IW_POWER_ON; | |
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | static int atmel_set_retry(struct net_device *dev, | |
2109 | struct iw_request_info *info, | |
2110 | struct iw_param *vwrq, | |
2111 | char *extra) | |
2112 | { | |
2113 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad CP |
2114 | |
2115 | if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { | |
6a484db4 | 2116 | if (vwrq->flags & IW_RETRY_LONG) |
1da177e4 | 2117 | priv->long_retry = vwrq->value; |
6a484db4 | 2118 | else if (vwrq->flags & IW_RETRY_SHORT) |
1da177e4 LT |
2119 | priv->short_retry = vwrq->value; |
2120 | else { | |
2121 | /* No modifier : set both */ | |
2122 | priv->long_retry = vwrq->value; | |
2123 | priv->short_retry = vwrq->value; | |
2124 | } | |
4d791aad | 2125 | return -EINPROGRESS; |
1da177e4 | 2126 | } |
4d791aad | 2127 | |
1da177e4 LT |
2128 | return -EINVAL; |
2129 | } | |
2130 | ||
2131 | static int atmel_get_retry(struct net_device *dev, | |
2132 | struct iw_request_info *info, | |
2133 | struct iw_param *vwrq, | |
2134 | char *extra) | |
2135 | { | |
2136 | struct atmel_private *priv = netdev_priv(dev); | |
2137 | ||
2138 | vwrq->disabled = 0; /* Can't be disabled */ | |
2139 | ||
6a484db4 JT |
2140 | /* Note : by default, display the short retry number */ |
2141 | if (vwrq->flags & IW_RETRY_LONG) { | |
2142 | vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; | |
1da177e4 LT |
2143 | vwrq->value = priv->long_retry; |
2144 | } else { | |
2145 | vwrq->flags = IW_RETRY_LIMIT; | |
2146 | vwrq->value = priv->short_retry; | |
4d791aad | 2147 | if (priv->long_retry != priv->short_retry) |
6a484db4 | 2148 | vwrq->flags |= IW_RETRY_SHORT; |
1da177e4 LT |
2149 | } |
2150 | ||
2151 | return 0; | |
2152 | } | |
2153 | ||
2154 | static int atmel_set_rts(struct net_device *dev, | |
2155 | struct iw_request_info *info, | |
2156 | struct iw_param *vwrq, | |
2157 | char *extra) | |
2158 | { | |
2159 | struct atmel_private *priv = netdev_priv(dev); | |
2160 | int rthr = vwrq->value; | |
2161 | ||
4d791aad | 2162 | if (vwrq->disabled) |
1da177e4 | 2163 | rthr = 2347; |
4d791aad | 2164 | if ((rthr < 0) || (rthr > 2347)) { |
1da177e4 LT |
2165 | return -EINVAL; |
2166 | } | |
2167 | priv->rts_threshold = rthr; | |
4d791aad | 2168 | |
1da177e4 LT |
2169 | return -EINPROGRESS; /* Call commit handler */ |
2170 | } | |
2171 | ||
2172 | static int atmel_get_rts(struct net_device *dev, | |
2173 | struct iw_request_info *info, | |
2174 | struct iw_param *vwrq, | |
2175 | char *extra) | |
2176 | { | |
2177 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 2178 | |
1da177e4 LT |
2179 | vwrq->value = priv->rts_threshold; |
2180 | vwrq->disabled = (vwrq->value >= 2347); | |
2181 | vwrq->fixed = 1; | |
2182 | ||
2183 | return 0; | |
2184 | } | |
2185 | ||
2186 | static int atmel_set_frag(struct net_device *dev, | |
2187 | struct iw_request_info *info, | |
2188 | struct iw_param *vwrq, | |
2189 | char *extra) | |
2190 | { | |
2191 | struct atmel_private *priv = netdev_priv(dev); | |
2192 | int fthr = vwrq->value; | |
2193 | ||
4d791aad | 2194 | if (vwrq->disabled) |
1da177e4 | 2195 | fthr = 2346; |
4d791aad | 2196 | if ((fthr < 256) || (fthr > 2346)) { |
1da177e4 LT |
2197 | return -EINVAL; |
2198 | } | |
2199 | fthr &= ~0x1; /* Get an even value - is it really needed ??? */ | |
2200 | priv->frag_threshold = fthr; | |
4d791aad | 2201 | |
1da177e4 LT |
2202 | return -EINPROGRESS; /* Call commit handler */ |
2203 | } | |
2204 | ||
2205 | static int atmel_get_frag(struct net_device *dev, | |
2206 | struct iw_request_info *info, | |
2207 | struct iw_param *vwrq, | |
2208 | char *extra) | |
2209 | { | |
2210 | struct atmel_private *priv = netdev_priv(dev); | |
2211 | ||
2212 | vwrq->value = priv->frag_threshold; | |
2213 | vwrq->disabled = (vwrq->value >= 2346); | |
2214 | vwrq->fixed = 1; | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | static const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, | |
2220 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; | |
2221 | ||
2222 | static int atmel_set_freq(struct net_device *dev, | |
2223 | struct iw_request_info *info, | |
2224 | struct iw_freq *fwrq, | |
2225 | char *extra) | |
2226 | { | |
2227 | struct atmel_private *priv = netdev_priv(dev); | |
2228 | int rc = -EINPROGRESS; /* Call commit handler */ | |
4d791aad | 2229 | |
1da177e4 | 2230 | /* If setting by frequency, convert to a channel */ |
4d791aad CP |
2231 | if ((fwrq->e == 1) && |
2232 | (fwrq->m >= (int) 241200000) && | |
2233 | (fwrq->m <= (int) 248700000)) { | |
1da177e4 LT |
2234 | int f = fwrq->m / 100000; |
2235 | int c = 0; | |
4d791aad | 2236 | while ((c < 14) && (f != frequency_list[c])) |
1da177e4 LT |
2237 | c++; |
2238 | /* Hack to fall through... */ | |
2239 | fwrq->e = 0; | |
2240 | fwrq->m = c + 1; | |
2241 | } | |
2242 | /* Setting by channel number */ | |
4d791aad | 2243 | if ((fwrq->m > 1000) || (fwrq->e > 0)) |
1da177e4 LT |
2244 | rc = -EOPNOTSUPP; |
2245 | else { | |
2246 | int channel = fwrq->m; | |
2247 | if (atmel_validate_channel(priv, channel) == 0) { | |
2248 | priv->channel = channel; | |
2249 | } else { | |
2250 | rc = -EINVAL; | |
4d791aad | 2251 | } |
1da177e4 LT |
2252 | } |
2253 | return rc; | |
2254 | } | |
2255 | ||
2256 | static int atmel_get_freq(struct net_device *dev, | |
2257 | struct iw_request_info *info, | |
2258 | struct iw_freq *fwrq, | |
2259 | char *extra) | |
2260 | { | |
2261 | struct atmel_private *priv = netdev_priv(dev); | |
2262 | ||
2263 | fwrq->m = priv->channel; | |
2264 | fwrq->e = 0; | |
2265 | return 0; | |
2266 | } | |
2267 | ||
2268 | static int atmel_set_scan(struct net_device *dev, | |
2269 | struct iw_request_info *info, | |
2270 | struct iw_param *vwrq, | |
2271 | char *extra) | |
2272 | { | |
2273 | struct atmel_private *priv = netdev_priv(dev); | |
2274 | unsigned long flags; | |
2275 | ||
2276 | /* Note : you may have realised that, as this is a SET operation, | |
2277 | * this is privileged and therefore a normal user can't | |
2278 | * perform scanning. | |
2279 | * This is not an error, while the device perform scanning, | |
2280 | * traffic doesn't flow, so it's a perfect DoS... | |
2281 | * Jean II */ | |
4d791aad | 2282 | |
1da177e4 LT |
2283 | if (priv->station_state == STATION_STATE_DOWN) |
2284 | return -EAGAIN; | |
2285 | ||
2286 | /* Timeout old surveys. */ | |
2287 | if ((jiffies - priv->last_survey) > (20 * HZ)) | |
2288 | priv->site_survey_state = SITE_SURVEY_IDLE; | |
2289 | priv->last_survey = jiffies; | |
2290 | ||
2291 | /* Initiate a scan command */ | |
2292 | if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS) | |
2293 | return -EBUSY; | |
4d791aad | 2294 | |
1da177e4 LT |
2295 | del_timer_sync(&priv->management_timer); |
2296 | spin_lock_irqsave(&priv->irqlock, flags); | |
4d791aad | 2297 | |
1da177e4 LT |
2298 | priv->site_survey_state = SITE_SURVEY_IN_PROGRESS; |
2299 | priv->fast_scan = 0; | |
2300 | atmel_scan(priv, 0); | |
2301 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
4d791aad | 2302 | |
1da177e4 LT |
2303 | return 0; |
2304 | } | |
2305 | ||
2306 | static int atmel_get_scan(struct net_device *dev, | |
2307 | struct iw_request_info *info, | |
2308 | struct iw_point *dwrq, | |
2309 | char *extra) | |
2310 | { | |
2311 | struct atmel_private *priv = netdev_priv(dev); | |
2312 | int i; | |
2313 | char *current_ev = extra; | |
2314 | struct iw_event iwe; | |
4d791aad | 2315 | |
1da177e4 LT |
2316 | if (priv->site_survey_state != SITE_SURVEY_COMPLETED) |
2317 | return -EAGAIN; | |
4d791aad CP |
2318 | |
2319 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2320 | iwe.cmd = SIOCGIWAP; |
2321 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
2322 | memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6); | |
2323 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_ADDR_LEN); | |
2324 | ||
2325 | iwe.u.data.length = priv->BSSinfo[i].SSIDsize; | |
2326 | if (iwe.u.data.length > 32) | |
2327 | iwe.u.data.length = 32; | |
2328 | iwe.cmd = SIOCGIWESSID; | |
2329 | iwe.u.data.flags = 1; | |
2330 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, priv->BSSinfo[i].SSID); | |
4d791aad | 2331 | |
1da177e4 LT |
2332 | iwe.cmd = SIOCGIWMODE; |
2333 | iwe.u.mode = priv->BSSinfo[i].BSStype; | |
2334 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_UINT_LEN); | |
4d791aad | 2335 | |
1da177e4 LT |
2336 | iwe.cmd = SIOCGIWFREQ; |
2337 | iwe.u.freq.m = priv->BSSinfo[i].channel; | |
2338 | iwe.u.freq.e = 0; | |
2339 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, IW_EV_FREQ_LEN); | |
4d791aad | 2340 | |
3b31dc32 HK |
2341 | /* Add quality statistics */ |
2342 | iwe.cmd = IWEVQUAL; | |
2343 | iwe.u.qual.level = priv->BSSinfo[i].RSSI; | |
2344 | iwe.u.qual.qual = iwe.u.qual.level; | |
2345 | /* iwe.u.qual.noise = SOMETHING */ | |
2346 | current_ev = iwe_stream_add_event(current_ev, extra + IW_SCAN_MAX_DATA , &iwe, IW_EV_QUAL_LEN); | |
2347 | ||
2348 | ||
1da177e4 LT |
2349 | iwe.cmd = SIOCGIWENCODE; |
2350 | if (priv->BSSinfo[i].UsingWEP) | |
2351 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
2352 | else | |
2353 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
2354 | iwe.u.data.length = 0; | |
2355 | current_ev = iwe_stream_add_point(current_ev, extra + IW_SCAN_MAX_DATA, &iwe, NULL); | |
1da177e4 LT |
2356 | } |
2357 | ||
2358 | /* Length of data */ | |
2359 | dwrq->length = (current_ev - extra); | |
4d791aad CP |
2360 | dwrq->flags = 0; |
2361 | ||
1da177e4 LT |
2362 | return 0; |
2363 | } | |
2364 | ||
2365 | static int atmel_get_range(struct net_device *dev, | |
2366 | struct iw_request_info *info, | |
2367 | struct iw_point *dwrq, | |
2368 | char *extra) | |
2369 | { | |
2370 | struct atmel_private *priv = netdev_priv(dev); | |
2371 | struct iw_range *range = (struct iw_range *) extra; | |
4d791aad | 2372 | int k, i, j; |
1da177e4 LT |
2373 | |
2374 | dwrq->length = sizeof(struct iw_range); | |
f36be621 | 2375 | memset(range, 0, sizeof(struct iw_range)); |
1da177e4 LT |
2376 | range->min_nwid = 0x0000; |
2377 | range->max_nwid = 0x0000; | |
2378 | range->num_channels = 0; | |
b4341135 | 2379 | for (j = 0; j < ARRAY_SIZE(channel_table); j++) |
1da177e4 LT |
2380 | if (priv->reg_domain == channel_table[j].reg_domain) { |
2381 | range->num_channels = channel_table[j].max - channel_table[j].min + 1; | |
2382 | break; | |
2383 | } | |
2384 | if (range->num_channels != 0) { | |
4d791aad | 2385 | for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) { |
1da177e4 | 2386 | range->freq[k].i = i; /* List index */ |
4d791aad | 2387 | range->freq[k].m = frequency_list[i - 1] * 100000; |
1da177e4 LT |
2388 | range->freq[k++].e = 1; /* Values in table in MHz -> * 10^5 * 10 */ |
2389 | } | |
2390 | range->num_frequency = k; | |
2391 | } | |
4d791aad | 2392 | |
1da177e4 LT |
2393 | range->max_qual.qual = 100; |
2394 | range->max_qual.level = 100; | |
2395 | range->max_qual.noise = 0; | |
2396 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
2397 | ||
2398 | range->avg_qual.qual = 50; | |
2399 | range->avg_qual.level = 50; | |
2400 | range->avg_qual.noise = 0; | |
2401 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; | |
2402 | ||
2403 | range->sensitivity = 0; | |
2404 | ||
2405 | range->bitrate[0] = 1000000; | |
2406 | range->bitrate[1] = 2000000; | |
2407 | range->bitrate[2] = 5500000; | |
2408 | range->bitrate[3] = 11000000; | |
2409 | range->num_bitrates = 4; | |
2410 | ||
2411 | range->min_rts = 0; | |
2412 | range->max_rts = 2347; | |
2413 | range->min_frag = 256; | |
2414 | range->max_frag = 2346; | |
2415 | ||
2416 | range->encoding_size[0] = 5; | |
2417 | range->encoding_size[1] = 13; | |
2418 | range->num_encoding_sizes = 2; | |
2419 | range->max_encoding_tokens = 4; | |
4d791aad | 2420 | |
1da177e4 LT |
2421 | range->pmp_flags = IW_POWER_ON; |
2422 | range->pmt_flags = IW_POWER_ON; | |
2423 | range->pm_capa = 0; | |
4d791aad | 2424 | |
1da177e4 LT |
2425 | range->we_version_source = WIRELESS_EXT; |
2426 | range->we_version_compiled = WIRELESS_EXT; | |
2427 | range->retry_capa = IW_RETRY_LIMIT ; | |
2428 | range->retry_flags = IW_RETRY_LIMIT; | |
2429 | range->r_time_flags = 0; | |
2430 | range->min_retry = 1; | |
2431 | range->max_retry = 65535; | |
2432 | ||
2433 | return 0; | |
2434 | } | |
2435 | ||
2436 | static int atmel_set_wap(struct net_device *dev, | |
2437 | struct iw_request_info *info, | |
2438 | struct sockaddr *awrq, | |
2439 | char *extra) | |
2440 | { | |
2441 | struct atmel_private *priv = netdev_priv(dev); | |
2442 | int i; | |
9a6301c1 DW |
2443 | static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
2444 | static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; | |
1da177e4 LT |
2445 | unsigned long flags; |
2446 | ||
2447 | if (awrq->sa_family != ARPHRD_ETHER) | |
2448 | return -EINVAL; | |
4d791aad | 2449 | |
9a6301c1 DW |
2450 | if (!memcmp(any, awrq->sa_data, 6) || |
2451 | !memcmp(off, awrq->sa_data, 6)) { | |
1da177e4 LT |
2452 | del_timer_sync(&priv->management_timer); |
2453 | spin_lock_irqsave(&priv->irqlock, flags); | |
2454 | atmel_scan(priv, 1); | |
2455 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2456 | return 0; | |
2457 | } | |
4d791aad CP |
2458 | |
2459 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2460 | if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) { |
2461 | if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) { | |
2462 | return -EINVAL; | |
2463 | } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) { | |
2464 | return -EINVAL; | |
2465 | } else { | |
2466 | del_timer_sync(&priv->management_timer); | |
2467 | spin_lock_irqsave(&priv->irqlock, flags); | |
2468 | atmel_join_bss(priv, i); | |
2469 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
2470 | return 0; | |
2471 | } | |
2472 | } | |
2473 | } | |
4d791aad | 2474 | |
1da177e4 LT |
2475 | return -EINVAL; |
2476 | } | |
4d791aad | 2477 | |
1da177e4 LT |
2478 | static int atmel_config_commit(struct net_device *dev, |
2479 | struct iw_request_info *info, /* NULL */ | |
2480 | void *zwrq, /* NULL */ | |
2481 | char *extra) /* NULL */ | |
2482 | { | |
2483 | return atmel_open(dev); | |
2484 | } | |
2485 | ||
4d791aad | 2486 | static const iw_handler atmel_handler[] = |
1da177e4 LT |
2487 | { |
2488 | (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */ | |
4d791aad | 2489 | (iw_handler) atmel_get_name, /* SIOCGIWNAME */ |
1da177e4 LT |
2490 | (iw_handler) NULL, /* SIOCSIWNWID */ |
2491 | (iw_handler) NULL, /* SIOCGIWNWID */ | |
2492 | (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */ | |
2493 | (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */ | |
2494 | (iw_handler) atmel_set_mode, /* SIOCSIWMODE */ | |
2495 | (iw_handler) atmel_get_mode, /* SIOCGIWMODE */ | |
4d791aad CP |
2496 | (iw_handler) NULL, /* SIOCSIWSENS */ |
2497 | (iw_handler) NULL, /* SIOCGIWSENS */ | |
1da177e4 LT |
2498 | (iw_handler) NULL, /* SIOCSIWRANGE */ |
2499 | (iw_handler) atmel_get_range, /* SIOCGIWRANGE */ | |
2500 | (iw_handler) NULL, /* SIOCSIWPRIV */ | |
2501 | (iw_handler) NULL, /* SIOCGIWPRIV */ | |
2502 | (iw_handler) NULL, /* SIOCSIWSTATS */ | |
2503 | (iw_handler) NULL, /* SIOCGIWSTATS */ | |
2504 | (iw_handler) NULL, /* SIOCSIWSPY */ | |
2505 | (iw_handler) NULL, /* SIOCGIWSPY */ | |
2506 | (iw_handler) NULL, /* -- hole -- */ | |
2507 | (iw_handler) NULL, /* -- hole -- */ | |
2508 | (iw_handler) atmel_set_wap, /* SIOCSIWAP */ | |
2509 | (iw_handler) atmel_get_wap, /* SIOCGIWAP */ | |
2510 | (iw_handler) NULL, /* -- hole -- */ | |
4d791aad | 2511 | (iw_handler) NULL, /* SIOCGIWAPLIST */ |
1da177e4 LT |
2512 | (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */ |
2513 | (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */ | |
2514 | (iw_handler) atmel_set_essid, /* SIOCSIWESSID */ | |
2515 | (iw_handler) atmel_get_essid, /* SIOCGIWESSID */ | |
4d791aad CP |
2516 | (iw_handler) NULL, /* SIOCSIWNICKN */ |
2517 | (iw_handler) NULL, /* SIOCGIWNICKN */ | |
1da177e4 LT |
2518 | (iw_handler) NULL, /* -- hole -- */ |
2519 | (iw_handler) NULL, /* -- hole -- */ | |
2520 | (iw_handler) atmel_set_rate, /* SIOCSIWRATE */ | |
2521 | (iw_handler) atmel_get_rate, /* SIOCGIWRATE */ | |
2522 | (iw_handler) atmel_set_rts, /* SIOCSIWRTS */ | |
2523 | (iw_handler) atmel_get_rts, /* SIOCGIWRTS */ | |
2524 | (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */ | |
2525 | (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */ | |
4d791aad CP |
2526 | (iw_handler) NULL, /* SIOCSIWTXPOW */ |
2527 | (iw_handler) NULL, /* SIOCGIWTXPOW */ | |
1da177e4 LT |
2528 | (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */ |
2529 | (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */ | |
2530 | (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */ | |
2531 | (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */ | |
2532 | (iw_handler) atmel_set_power, /* SIOCSIWPOWER */ | |
2533 | (iw_handler) atmel_get_power, /* SIOCGIWPOWER */ | |
9a6301c1 DW |
2534 | (iw_handler) NULL, /* -- hole -- */ |
2535 | (iw_handler) NULL, /* -- hole -- */ | |
2536 | (iw_handler) NULL, /* SIOCSIWGENIE */ | |
2537 | (iw_handler) NULL, /* SIOCGIWGENIE */ | |
2538 | (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */ | |
2539 | (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */ | |
2540 | (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */ | |
2541 | (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */ | |
2542 | (iw_handler) NULL, /* SIOCSIWPMKSA */ | |
1da177e4 LT |
2543 | }; |
2544 | ||
4d791aad | 2545 | static const iw_handler atmel_private_handler[] = |
1da177e4 LT |
2546 | { |
2547 | NULL, /* SIOCIWFIRSTPRIV */ | |
2548 | }; | |
2549 | ||
2550 | typedef struct atmel_priv_ioctl { | |
2551 | char id[32]; | |
4d791aad CP |
2552 | unsigned char __user *data; |
2553 | unsigned short len; | |
1da177e4 LT |
2554 | } atmel_priv_ioctl; |
2555 | ||
4d791aad CP |
2556 | #define ATMELFWL SIOCIWFIRSTPRIV |
2557 | #define ATMELIDIFC ATMELFWL + 1 | |
2558 | #define ATMELRD ATMELFWL + 2 | |
2559 | #define ATMELMAGIC 0x51807 | |
1da177e4 LT |
2560 | #define REGDOMAINSZ 20 |
2561 | ||
2562 | static const struct iw_priv_args atmel_private_args[] = { | |
4d791aad CP |
2563 | { |
2564 | .cmd = ATMELFWL, | |
2565 | .set_args = IW_PRIV_TYPE_BYTE | |
2566 | | IW_PRIV_SIZE_FIXED | |
2567 | | sizeof (atmel_priv_ioctl), | |
2568 | .get_args = IW_PRIV_TYPE_NONE, | |
2569 | .name = "atmelfwl" | |
2570 | }, { | |
2571 | .cmd = ATMELIDIFC, | |
2572 | .set_args = IW_PRIV_TYPE_NONE, | |
2573 | .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, | |
2574 | .name = "atmelidifc" | |
2575 | }, { | |
2576 | .cmd = ATMELRD, | |
2577 | .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ, | |
2578 | .get_args = IW_PRIV_TYPE_NONE, | |
2579 | .name = "regdomain" | |
2580 | }, | |
1da177e4 LT |
2581 | }; |
2582 | ||
4d791aad | 2583 | static const struct iw_handler_def atmel_handler_def = |
1da177e4 | 2584 | { |
b4341135 DT |
2585 | .num_standard = ARRAY_SIZE(atmel_handler), |
2586 | .num_private = ARRAY_SIZE(atmel_private_handler), | |
2587 | .num_private_args = ARRAY_SIZE(atmel_private_args), | |
1da177e4 | 2588 | .standard = (iw_handler *) atmel_handler, |
4d791aad | 2589 | .private = (iw_handler *) atmel_private_handler, |
72f98d38 JT |
2590 | .private_args = (struct iw_priv_args *) atmel_private_args, |
2591 | .get_wireless_stats = atmel_get_wireless_stats | |
1da177e4 LT |
2592 | }; |
2593 | ||
2594 | static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) | |
2595 | { | |
2596 | int i, rc = 0; | |
2597 | struct atmel_private *priv = netdev_priv(dev); | |
2598 | atmel_priv_ioctl com; | |
2599 | struct iwreq *wrq = (struct iwreq *) rq; | |
2600 | unsigned char *new_firmware; | |
4d791aad | 2601 | char domain[REGDOMAINSZ + 1]; |
1da177e4 LT |
2602 | |
2603 | switch (cmd) { | |
1da177e4 | 2604 | case ATMELIDIFC: |
4d791aad | 2605 | wrq->u.param.value = ATMELMAGIC; |
1da177e4 | 2606 | break; |
4d791aad | 2607 | |
1da177e4 LT |
2608 | case ATMELFWL: |
2609 | if (copy_from_user(&com, rq->ifr_data, sizeof(com))) { | |
2610 | rc = -EFAULT; | |
2611 | break; | |
2612 | } | |
2613 | ||
2614 | if (!capable(CAP_NET_ADMIN)) { | |
2615 | rc = -EPERM; | |
2616 | break; | |
2617 | } | |
2618 | ||
2619 | if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) { | |
2620 | rc = -ENOMEM; | |
2621 | break; | |
2622 | } | |
2623 | ||
2624 | if (copy_from_user(new_firmware, com.data, com.len)) { | |
2625 | kfree(new_firmware); | |
2626 | rc = -EFAULT; | |
2627 | break; | |
2628 | } | |
2629 | ||
b4558ea9 | 2630 | kfree(priv->firmware); |
4d791aad | 2631 | |
1da177e4 LT |
2632 | priv->firmware = new_firmware; |
2633 | priv->firmware_length = com.len; | |
2634 | strncpy(priv->firmware_id, com.id, 31); | |
2635 | priv->firmware_id[31] = '\0'; | |
2636 | break; | |
2637 | ||
2638 | case ATMELRD: | |
2639 | if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) { | |
2640 | rc = -EFAULT; | |
2641 | break; | |
2642 | } | |
4d791aad | 2643 | |
1da177e4 LT |
2644 | if (!capable(CAP_NET_ADMIN)) { |
2645 | rc = -EPERM; | |
2646 | break; | |
2647 | } | |
2648 | ||
2649 | domain[REGDOMAINSZ] = 0; | |
2650 | rc = -EINVAL; | |
b4341135 | 2651 | for (i = 0; i < ARRAY_SIZE(channel_table); i++) { |
1da177e4 LT |
2652 | /* strcasecmp doesn't exist in the library */ |
2653 | char *a = channel_table[i].name; | |
2654 | char *b = domain; | |
2655 | while (*a) { | |
2656 | char c1 = *a++; | |
2657 | char c2 = *b++; | |
2658 | if (tolower(c1) != tolower(c2)) | |
2659 | break; | |
2660 | } | |
2661 | if (!*a && !*b) { | |
2662 | priv->config_reg_domain = channel_table[i].reg_domain; | |
2663 | rc = 0; | |
2664 | } | |
2665 | } | |
4d791aad | 2666 | |
1da177e4 LT |
2667 | if (rc == 0 && priv->station_state != STATION_STATE_DOWN) |
2668 | rc = atmel_open(dev); | |
2669 | break; | |
4d791aad | 2670 | |
1da177e4 LT |
2671 | default: |
2672 | rc = -EOPNOTSUPP; | |
2673 | } | |
4d791aad | 2674 | |
1da177e4 LT |
2675 | return rc; |
2676 | } | |
2677 | ||
2678 | struct auth_body { | |
2679 | u16 alg; | |
2680 | u16 trans_seq; | |
2681 | u16 status; | |
2682 | u8 el_id; | |
2683 | u8 chall_text_len; | |
2684 | u8 chall_text[253]; | |
4d791aad | 2685 | }; |
1da177e4 LT |
2686 | |
2687 | static void atmel_enter_state(struct atmel_private *priv, int new_state) | |
2688 | { | |
2689 | int old_state = priv->station_state; | |
4d791aad | 2690 | |
1da177e4 LT |
2691 | if (new_state == old_state) |
2692 | return; | |
4d791aad | 2693 | |
1da177e4 | 2694 | priv->station_state = new_state; |
4d791aad | 2695 | |
1da177e4 LT |
2696 | if (new_state == STATION_STATE_READY) { |
2697 | netif_start_queue(priv->dev); | |
2698 | netif_carrier_on(priv->dev); | |
2699 | } | |
2700 | ||
2701 | if (old_state == STATION_STATE_READY) { | |
2702 | netif_carrier_off(priv->dev); | |
2703 | if (netif_running(priv->dev)) | |
2704 | netif_stop_queue(priv->dev); | |
2705 | priv->last_beacon_timestamp = 0; | |
2706 | } | |
2707 | } | |
2708 | ||
2709 | static void atmel_scan(struct atmel_private *priv, int specific_ssid) | |
2710 | { | |
2711 | struct { | |
2712 | u8 BSSID[6]; | |
2713 | u8 SSID[MAX_SSID_LENGTH]; | |
2714 | u8 scan_type; | |
2715 | u8 channel; | |
2716 | u16 BSS_type; | |
2717 | u16 min_channel_time; | |
2718 | u16 max_channel_time; | |
2719 | u8 options; | |
2720 | u8 SSID_size; | |
2721 | } cmd; | |
4d791aad | 2722 | |
1da177e4 LT |
2723 | memset(cmd.BSSID, 0xff, 6); |
2724 | ||
2725 | if (priv->fast_scan) { | |
2726 | cmd.SSID_size = priv->SSID_size; | |
2727 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2728 | cmd.min_channel_time = cpu_to_le16(10); | |
2729 | cmd.max_channel_time = cpu_to_le16(50); | |
2730 | } else { | |
2731 | priv->BSS_list_entries = 0; | |
2732 | cmd.SSID_size = 0; | |
2733 | cmd.min_channel_time = cpu_to_le16(10); | |
2734 | cmd.max_channel_time = cpu_to_le16(120); | |
2735 | } | |
4d791aad | 2736 | |
1da177e4 | 2737 | cmd.options = 0; |
4d791aad | 2738 | |
1da177e4 LT |
2739 | if (!specific_ssid) |
2740 | cmd.options |= SCAN_OPTIONS_SITE_SURVEY; | |
4d791aad CP |
2741 | |
2742 | cmd.channel = (priv->channel & 0x7f); | |
1da177e4 | 2743 | cmd.scan_type = SCAN_TYPE_ACTIVE; |
4d791aad | 2744 | cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ? |
1da177e4 | 2745 | BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE); |
4d791aad | 2746 | |
1da177e4 LT |
2747 | atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd)); |
2748 | ||
2749 | /* This must come after all hardware access to avoid being messed up | |
2750 | by stuff happening in interrupt context after we leave STATE_DOWN */ | |
2751 | atmel_enter_state(priv, STATION_STATE_SCANNING); | |
2752 | } | |
2753 | ||
2754 | static void join(struct atmel_private *priv, int type) | |
2755 | { | |
2756 | struct { | |
2757 | u8 BSSID[6]; | |
2758 | u8 SSID[MAX_SSID_LENGTH]; | |
2759 | u8 BSS_type; /* this is a short in a scan command - weird */ | |
2760 | u8 channel; | |
2761 | u16 timeout; | |
2762 | u8 SSID_size; | |
2763 | u8 reserved; | |
2764 | } cmd; | |
2765 | ||
2766 | cmd.SSID_size = priv->SSID_size; | |
2767 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2768 | memcpy(cmd.BSSID, priv->CurrentBSSID, 6); | |
2769 | cmd.channel = (priv->channel & 0x7f); | |
2770 | cmd.BSS_type = type; | |
2771 | cmd.timeout = cpu_to_le16(2000); | |
2772 | ||
4d791aad | 2773 | atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd)); |
1da177e4 LT |
2774 | } |
2775 | ||
1da177e4 LT |
2776 | static void start(struct atmel_private *priv, int type) |
2777 | { | |
2778 | struct { | |
2779 | u8 BSSID[6]; | |
2780 | u8 SSID[MAX_SSID_LENGTH]; | |
4d791aad | 2781 | u8 BSS_type; |
1da177e4 LT |
2782 | u8 channel; |
2783 | u8 SSID_size; | |
2784 | u8 reserved[3]; | |
2785 | } cmd; | |
2786 | ||
2787 | cmd.SSID_size = priv->SSID_size; | |
2788 | memcpy(cmd.SSID, priv->SSID, priv->SSID_size); | |
2789 | memcpy(cmd.BSSID, priv->BSSID, 6); | |
2790 | cmd.BSS_type = type; | |
2791 | cmd.channel = (priv->channel & 0x7f); | |
2792 | ||
4d791aad | 2793 | atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd)); |
1da177e4 LT |
2794 | } |
2795 | ||
4d791aad CP |
2796 | static void handle_beacon_probe(struct atmel_private *priv, u16 capability, |
2797 | u8 channel) | |
1da177e4 LT |
2798 | { |
2799 | int rejoin = 0; | |
4861dd79 | 2800 | int new = capability & MFIE_TYPE_POWER_CONSTRAINT ? |
1da177e4 LT |
2801 | SHORT_PREAMBLE : LONG_PREAMBLE; |
2802 | ||
2803 | if (priv->preamble != new) { | |
2804 | priv->preamble = new; | |
2805 | rejoin = 1; | |
2806 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new); | |
2807 | } | |
4d791aad | 2808 | |
1da177e4 LT |
2809 | if (priv->channel != channel) { |
2810 | priv->channel = channel; | |
2811 | rejoin = 1; | |
2812 | atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel); | |
2813 | } | |
4d791aad | 2814 | |
1da177e4 LT |
2815 | if (rejoin) { |
2816 | priv->station_is_associated = 0; | |
2817 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 2818 | |
1da177e4 LT |
2819 | if (priv->operating_mode == IW_MODE_INFRA) |
2820 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 2821 | else |
1da177e4 | 2822 | join(priv, BSS_TYPE_AD_HOC); |
4d791aad | 2823 | } |
1da177e4 LT |
2824 | } |
2825 | ||
4d791aad CP |
2826 | static void send_authentication_request(struct atmel_private *priv, u16 system, |
2827 | u8 *challenge, int challenge_len) | |
1da177e4 | 2828 | { |
4ca5253d | 2829 | struct ieee80211_hdr_4addr header; |
1da177e4 | 2830 | struct auth_body auth; |
4d791aad CP |
2831 | |
2832 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); | |
2833 | header.duration_id = cpu_to_le16(0x8000); | |
1da177e4 LT |
2834 | header.seq_ctl = 0; |
2835 | memcpy(header.addr1, priv->CurrentBSSID, 6); | |
2836 | memcpy(header.addr2, priv->dev->dev_addr, 6); | |
2837 | memcpy(header.addr3, priv->CurrentBSSID, 6); | |
4d791aad CP |
2838 | |
2839 | if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1) | |
1da177e4 | 2840 | /* no WEP for authentication frames with TrSeqNo 1 */ |
b16a228d | 2841 | header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); |
4d791aad CP |
2842 | |
2843 | auth.alg = cpu_to_le16(system); | |
1da177e4 LT |
2844 | |
2845 | auth.status = 0; | |
2846 | auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum); | |
4d791aad | 2847 | priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1; |
1da177e4 | 2848 | priv->CurrentAuthentTransactionSeqNum += 2; |
4d791aad | 2849 | |
1da177e4 LT |
2850 | if (challenge_len != 0) { |
2851 | auth.el_id = 16; /* challenge_text */ | |
2852 | auth.chall_text_len = challenge_len; | |
2853 | memcpy(auth.chall_text, challenge, challenge_len); | |
2854 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len); | |
2855 | } else { | |
2856 | atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6); | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | static void send_association_request(struct atmel_private *priv, int is_reassoc) | |
2861 | { | |
2862 | u8 *ssid_el_p; | |
2863 | int bodysize; | |
4ca5253d | 2864 | struct ieee80211_hdr_4addr header; |
1da177e4 LT |
2865 | struct ass_req_format { |
2866 | u16 capability; | |
4d791aad | 2867 | u16 listen_interval; |
1da177e4 LT |
2868 | u8 ap[6]; /* nothing after here directly accessible */ |
2869 | u8 ssid_el_id; | |
2870 | u8 ssid_len; | |
2871 | u8 ssid[MAX_SSID_LENGTH]; | |
2872 | u8 sup_rates_el_id; | |
2873 | u8 sup_rates_len; | |
2874 | u8 rates[4]; | |
2875 | } body; | |
4d791aad CP |
2876 | |
2877 | header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
b453872c | 2878 | (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); |
1da177e4 LT |
2879 | header.duration_id = cpu_to_le16(0x8000); |
2880 | header.seq_ctl = 0; | |
2881 | ||
4d791aad | 2882 | memcpy(header.addr1, priv->CurrentBSSID, 6); |
1da177e4 | 2883 | memcpy(header.addr2, priv->dev->dev_addr, 6); |
4d791aad | 2884 | memcpy(header.addr3, priv->CurrentBSSID, 6); |
1da177e4 | 2885 | |
4861dd79 | 2886 | body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS); |
1da177e4 | 2887 | if (priv->wep_is_on) |
4861dd79 | 2888 | body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY); |
1da177e4 | 2889 | if (priv->preamble == SHORT_PREAMBLE) |
4861dd79 | 2890 | body.capability |= cpu_to_le16(MFIE_TYPE_POWER_CONSTRAINT); |
1da177e4 LT |
2891 | |
2892 | body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period); | |
4d791aad | 2893 | |
1da177e4 LT |
2894 | /* current AP address - only in reassoc frame */ |
2895 | if (is_reassoc) { | |
4d791aad | 2896 | memcpy(body.ap, priv->CurrentBSSID, 6); |
1da177e4 LT |
2897 | ssid_el_p = (u8 *)&body.ssid_el_id; |
2898 | bodysize = 18 + priv->SSID_size; | |
2899 | } else { | |
2900 | ssid_el_p = (u8 *)&body.ap[0]; | |
2901 | bodysize = 12 + priv->SSID_size; | |
2902 | } | |
4d791aad | 2903 | |
4861dd79 | 2904 | ssid_el_p[0] = MFIE_TYPE_SSID; |
1da177e4 LT |
2905 | ssid_el_p[1] = priv->SSID_size; |
2906 | memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size); | |
4861dd79 | 2907 | ssid_el_p[2 + priv->SSID_size] = MFIE_TYPE_RATES; |
1da177e4 LT |
2908 | ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */ |
2909 | memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4); | |
2910 | ||
2911 | atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); | |
2912 | } | |
2913 | ||
4d791aad CP |
2914 | static int is_frame_from_current_bss(struct atmel_private *priv, |
2915 | struct ieee80211_hdr_4addr *header) | |
1da177e4 | 2916 | { |
b453872c | 2917 | if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) |
1da177e4 LT |
2918 | return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; |
2919 | else | |
2920 | return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; | |
2921 | } | |
2922 | ||
2923 | static int retrieve_bss(struct atmel_private *priv) | |
2924 | { | |
2925 | int i; | |
2926 | int max_rssi = -128; | |
2927 | int max_index = -1; | |
4d791aad | 2928 | |
1da177e4 LT |
2929 | if (priv->BSS_list_entries == 0) |
2930 | return -1; | |
4d791aad | 2931 | |
1da177e4 | 2932 | if (priv->connect_to_any_BSS) { |
4d791aad CP |
2933 | /* Select a BSS with the max-RSSI but of the same type and of |
2934 | the same WEP mode and that it is not marked as 'bad' (i.e. | |
2935 | we had previously failed to connect to this BSS with the | |
2936 | settings that we currently use) */ | |
1da177e4 | 2937 | priv->current_BSS = 0; |
4d791aad | 2938 | for (i = 0; i < priv->BSS_list_entries; i++) { |
1da177e4 | 2939 | if (priv->operating_mode == priv->BSSinfo[i].BSStype && |
4d791aad | 2940 | ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) || |
1da177e4 LT |
2941 | (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) && |
2942 | !(priv->BSSinfo[i].channel & 0x80)) { | |
2943 | max_rssi = priv->BSSinfo[i].RSSI; | |
2944 | priv->current_BSS = max_index = i; | |
2945 | } | |
1da177e4 LT |
2946 | } |
2947 | return max_index; | |
2948 | } | |
4d791aad CP |
2949 | |
2950 | for (i = 0; i < priv->BSS_list_entries; i++) { | |
1da177e4 LT |
2951 | if (priv->SSID_size == priv->BSSinfo[i].SSIDsize && |
2952 | memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 && | |
2953 | priv->operating_mode == priv->BSSinfo[i].BSStype && | |
2954 | atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) { | |
2955 | if (priv->BSSinfo[i].RSSI >= max_rssi) { | |
2956 | max_rssi = priv->BSSinfo[i].RSSI; | |
2957 | max_index = i; | |
2958 | } | |
2959 | } | |
2960 | } | |
2961 | return max_index; | |
2962 | } | |
2963 | ||
4d791aad CP |
2964 | static void store_bss_info(struct atmel_private *priv, |
2965 | struct ieee80211_hdr_4addr *header, u16 capability, | |
2966 | u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, | |
2967 | u8 *ssid, int is_beacon) | |
1da177e4 | 2968 | { |
4861dd79 | 2969 | u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3; |
1da177e4 | 2970 | int i, index; |
4d791aad CP |
2971 | |
2972 | for (index = -1, i = 0; i < priv->BSS_list_entries; i++) | |
2973 | if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0) | |
1da177e4 LT |
2974 | index = i; |
2975 | ||
4d791aad | 2976 | /* If we process a probe and an entry from this BSS exists |
1da177e4 LT |
2977 | we will update the BSS entry with the info from this BSS. |
2978 | If we process a beacon we will only update RSSI */ | |
2979 | ||
2980 | if (index == -1) { | |
2981 | if (priv->BSS_list_entries == MAX_BSS_ENTRIES) | |
2982 | return; | |
2983 | index = priv->BSS_list_entries++; | |
2984 | memcpy(priv->BSSinfo[index].BSSID, bss, 6); | |
2985 | priv->BSSinfo[index].RSSI = rssi; | |
2986 | } else { | |
2987 | if (rssi > priv->BSSinfo[index].RSSI) | |
2988 | priv->BSSinfo[index].RSSI = rssi; | |
2989 | if (is_beacon) | |
2990 | return; | |
2991 | } | |
2992 | ||
2993 | priv->BSSinfo[index].channel = channel; | |
2994 | priv->BSSinfo[index].beacon_period = beacon_period; | |
4861dd79 | 2995 | priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY; |
1da177e4 LT |
2996 | memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len); |
2997 | priv->BSSinfo[index].SSIDsize = ssid_len; | |
2998 | ||
4861dd79 | 2999 | if (capability & WLAN_CAPABILITY_IBSS) |
1da177e4 | 3000 | priv->BSSinfo[index].BSStype = IW_MODE_ADHOC; |
4861dd79 | 3001 | else if (capability & WLAN_CAPABILITY_ESS) |
1da177e4 | 3002 | priv->BSSinfo[index].BSStype =IW_MODE_INFRA; |
4d791aad | 3003 | |
4861dd79 | 3004 | priv->BSSinfo[index].preamble = capability & MFIE_TYPE_POWER_CONSTRAINT ? |
1da177e4 LT |
3005 | SHORT_PREAMBLE : LONG_PREAMBLE; |
3006 | } | |
3007 | ||
3008 | static void authenticate(struct atmel_private *priv, u16 frame_len) | |
3009 | { | |
3010 | struct auth_body *auth = (struct auth_body *)priv->rx_buf; | |
3011 | u16 status = le16_to_cpu(auth->status); | |
3012 | u16 trans_seq_no = le16_to_cpu(auth->trans_seq); | |
b16a228d | 3013 | u16 system = le16_to_cpu(auth->alg); |
4d791aad | 3014 | |
4861dd79 | 3015 | if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) { |
1da177e4 LT |
3016 | /* no WEP */ |
3017 | if (priv->station_was_associated) { | |
3018 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3019 | send_association_request(priv, 1); | |
3020 | return; | |
3021 | } else { | |
3022 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3023 | send_association_request(priv, 0); | |
3024 | return; | |
4d791aad | 3025 | } |
1da177e4 | 3026 | } |
4d791aad | 3027 | |
4861dd79 | 3028 | if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) { |
73451379 | 3029 | int should_associate = 0; |
1da177e4 LT |
3030 | /* WEP */ |
3031 | if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum) | |
3032 | return; | |
4d791aad | 3033 | |
4861dd79 | 3034 | if (system == WLAN_AUTH_OPEN) { |
73451379 DW |
3035 | if (trans_seq_no == 0x0002) { |
3036 | should_associate = 1; | |
3037 | } | |
4861dd79 | 3038 | } else if (system == WLAN_AUTH_SHARED_KEY) { |
73451379 | 3039 | if (trans_seq_no == 0x0002 && |
4861dd79 | 3040 | auth->el_id == MFIE_TYPE_CHALLENGE) { |
73451379 DW |
3041 | send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len); |
3042 | return; | |
3043 | } else if (trans_seq_no == 0x0004) { | |
3044 | should_associate = 1; | |
3045 | } | |
1da177e4 | 3046 | } |
4d791aad | 3047 | |
73451379 | 3048 | if (should_associate) { |
1da177e4 LT |
3049 | if(priv->station_was_associated) { |
3050 | atmel_enter_state(priv, STATION_STATE_REASSOCIATING); | |
3051 | send_association_request(priv, 1); | |
3052 | return; | |
3053 | } else { | |
3054 | atmel_enter_state(priv, STATION_STATE_ASSOCIATING); | |
3055 | send_association_request(priv, 0); | |
3056 | return; | |
4d791aad | 3057 | } |
1da177e4 | 3058 | } |
4d791aad CP |
3059 | } |
3060 | ||
73451379 | 3061 | if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { |
b16a228d | 3062 | /* Do opensystem first, then try sharedkey */ |
73451379 | 3063 | if (system == WLAN_AUTH_OPEN) { |
b16a228d | 3064 | priv->CurrentAuthentTransactionSeqNum = 0x001; |
73451379 DW |
3065 | priv->exclude_unencrypted = 1; |
3066 | send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0); | |
3067 | return; | |
b16a228d | 3068 | } else if (priv->connect_to_any_BSS) { |
3069 | int bss_index; | |
4d791aad | 3070 | |
b16a228d | 3071 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; |
4d791aad | 3072 | |
b16a228d | 3073 | if ((bss_index = retrieve_bss(priv)) != -1) { |
3074 | atmel_join_bss(priv, bss_index); | |
3075 | return; | |
3076 | } | |
1da177e4 LT |
3077 | } |
3078 | } | |
4d791aad | 3079 | |
1da177e4 LT |
3080 | priv->AuthenticationRequestRetryCnt = 0; |
3081 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3082 | priv->station_is_associated = 0; | |
3083 | } | |
3084 | ||
3085 | static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype) | |
3086 | { | |
3087 | struct ass_resp_format { | |
3088 | u16 capability; | |
3089 | u16 status; | |
3090 | u16 ass_id; | |
3091 | u8 el_id; | |
3092 | u8 length; | |
3093 | u8 rates[4]; | |
3094 | } *ass_resp = (struct ass_resp_format *)priv->rx_buf; | |
4d791aad CP |
3095 | |
3096 | u16 status = le16_to_cpu(ass_resp->status); | |
1da177e4 | 3097 | u16 ass_id = le16_to_cpu(ass_resp->ass_id); |
4d791aad CP |
3098 | u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length; |
3099 | ||
9a6301c1 DW |
3100 | union iwreq_data wrqu; |
3101 | ||
1da177e4 LT |
3102 | if (frame_len < 8 + rates_len) |
3103 | return; | |
4d791aad | 3104 | |
4861dd79 DW |
3105 | if (status == WLAN_STATUS_SUCCESS) { |
3106 | if (subtype == IEEE80211_STYPE_ASSOC_RESP) | |
1da177e4 LT |
3107 | priv->AssociationRequestRetryCnt = 0; |
3108 | else | |
3109 | priv->ReAssociationRequestRetryCnt = 0; | |
4d791aad CP |
3110 | |
3111 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3112 | MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff); | |
3113 | atmel_set_mib(priv, Phy_Mib_Type, | |
3114 | PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len); | |
1da177e4 LT |
3115 | if (priv->power_mode == 0) { |
3116 | priv->listen_interval = 1; | |
4d791aad CP |
3117 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3118 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3119 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3120 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 LT |
3121 | } else { |
3122 | priv->listen_interval = 2; | |
4d791aad CP |
3123 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3124 | MAC_MGMT_MIB_PS_MODE_POS, PS_MODE); | |
3125 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3126 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2); | |
1da177e4 | 3127 | } |
4d791aad | 3128 | |
1da177e4 LT |
3129 | priv->station_is_associated = 1; |
3130 | priv->station_was_associated = 1; | |
3131 | atmel_enter_state(priv, STATION_STATE_READY); | |
9a6301c1 DW |
3132 | |
3133 | /* Send association event to userspace */ | |
3134 | wrqu.data.length = 0; | |
3135 | wrqu.data.flags = 0; | |
3136 | memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN); | |
3137 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
3138 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
3139 | ||
1da177e4 LT |
3140 | return; |
3141 | } | |
4d791aad | 3142 | |
4861dd79 DW |
3143 | if (subtype == IEEE80211_STYPE_ASSOC_RESP && |
3144 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3145 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3146 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3147 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3148 | priv->AssociationRequestRetryCnt++; | |
3149 | send_association_request(priv, 0); | |
3150 | return; | |
3151 | } | |
4d791aad | 3152 | |
4861dd79 DW |
3153 | if (subtype == IEEE80211_STYPE_REASSOC_RESP && |
3154 | status != WLAN_STATUS_ASSOC_DENIED_RATES && | |
3155 | status != WLAN_STATUS_CAPS_UNSUPPORTED && | |
1da177e4 LT |
3156 | priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) { |
3157 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3158 | priv->ReAssociationRequestRetryCnt++; | |
3159 | send_association_request(priv, 1); | |
3160 | return; | |
3161 | } | |
4d791aad | 3162 | |
1da177e4 LT |
3163 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); |
3164 | priv->station_is_associated = 0; | |
4d791aad CP |
3165 | |
3166 | if (priv->connect_to_any_BSS) { | |
1da177e4 LT |
3167 | int bss_index; |
3168 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3169 | |
3170 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 | 3171 | atmel_join_bss(priv, bss_index); |
1da177e4 LT |
3172 | } |
3173 | } | |
3174 | ||
3175 | void atmel_join_bss(struct atmel_private *priv, int bss_index) | |
3176 | { | |
3177 | struct bss_info *bss = &priv->BSSinfo[bss_index]; | |
3178 | ||
3179 | memcpy(priv->CurrentBSSID, bss->BSSID, 6); | |
3180 | memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize); | |
3181 | ||
3182 | /* The WPA stuff cares about the current AP address */ | |
3183 | if (priv->use_wpa) | |
3184 | build_wpa_mib(priv); | |
4d791aad | 3185 | |
1da177e4 LT |
3186 | /* When switching to AdHoc turn OFF Power Save if needed */ |
3187 | ||
3188 | if (bss->BSStype == IW_MODE_ADHOC && | |
3189 | priv->operating_mode != IW_MODE_ADHOC && | |
3190 | priv->power_mode) { | |
3191 | priv->power_mode = 0; | |
3192 | priv->listen_interval = 1; | |
4d791aad CP |
3193 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, |
3194 | MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3195 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, | |
3196 | MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
1da177e4 | 3197 | } |
4d791aad | 3198 | |
1da177e4 | 3199 | priv->operating_mode = bss->BSStype; |
4d791aad | 3200 | priv->channel = bss->channel & 0x7f; |
1da177e4 | 3201 | priv->beacon_period = bss->beacon_period; |
4d791aad | 3202 | |
1da177e4 LT |
3203 | if (priv->preamble != bss->preamble) { |
3204 | priv->preamble = bss->preamble; | |
4d791aad CP |
3205 | atmel_set_mib8(priv, Local_Mib_Type, |
3206 | LOCAL_MIB_PREAMBLE_TYPE, bss->preamble); | |
1da177e4 | 3207 | } |
4d791aad | 3208 | |
1da177e4 LT |
3209 | if (!priv->wep_is_on && bss->UsingWEP) { |
3210 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3211 | priv->station_is_associated = 0; | |
3212 | return; | |
3213 | } | |
4d791aad | 3214 | |
1da177e4 LT |
3215 | if (priv->wep_is_on && !bss->UsingWEP) { |
3216 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3217 | priv->station_is_associated = 0; | |
3218 | return; | |
3219 | } | |
3220 | ||
3221 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
4d791aad | 3222 | |
1da177e4 LT |
3223 | if (priv->operating_mode == IW_MODE_INFRA) |
3224 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
4d791aad | 3225 | else |
1da177e4 LT |
3226 | join(priv, BSS_TYPE_AD_HOC); |
3227 | } | |
3228 | ||
1da177e4 LT |
3229 | static void restart_search(struct atmel_private *priv) |
3230 | { | |
3231 | int bss_index; | |
4d791aad | 3232 | |
1da177e4 LT |
3233 | if (!priv->connect_to_any_BSS) { |
3234 | atmel_scan(priv, 1); | |
3235 | } else { | |
3236 | priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80; | |
4d791aad CP |
3237 | |
3238 | if ((bss_index = retrieve_bss(priv)) != -1) | |
1da177e4 LT |
3239 | atmel_join_bss(priv, bss_index); |
3240 | else | |
3241 | atmel_scan(priv, 0); | |
4d791aad CP |
3242 | } |
3243 | } | |
1da177e4 LT |
3244 | |
3245 | static void smooth_rssi(struct atmel_private *priv, u8 rssi) | |
3246 | { | |
3247 | u8 old = priv->wstats.qual.level; | |
3248 | u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */ | |
3249 | ||
3250 | switch (priv->firmware_type) { | |
3251 | case ATMEL_FW_TYPE_502E: | |
3252 | max_rssi = 63; /* 502-rmfd-reve max by experiment */ | |
3253 | break; | |
3254 | default: | |
3255 | break; | |
3256 | } | |
3257 | ||
3258 | rssi = rssi * 100 / max_rssi; | |
4d791aad CP |
3259 | if ((rssi + old) % 2) |
3260 | priv->wstats.qual.level = (rssi + old) / 2 + 1; | |
1da177e4 | 3261 | else |
4d791aad | 3262 | priv->wstats.qual.level = (rssi + old) / 2; |
1da177e4 LT |
3263 | priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED; |
3264 | priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID; | |
3265 | } | |
3266 | ||
3267 | static void atmel_smooth_qual(struct atmel_private *priv) | |
3268 | { | |
4d791aad | 3269 | unsigned long time_diff = (jiffies - priv->last_qual) / HZ; |
1da177e4 LT |
3270 | while (time_diff--) { |
3271 | priv->last_qual += HZ; | |
4d791aad CP |
3272 | priv->wstats.qual.qual = priv->wstats.qual.qual / 2; |
3273 | priv->wstats.qual.qual += | |
1da177e4 LT |
3274 | priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000; |
3275 | priv->beacons_this_sec = 0; | |
3276 | } | |
3277 | priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED; | |
3278 | priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID; | |
3279 | } | |
3280 | ||
3281 | /* deals with incoming managment frames. */ | |
4d791aad CP |
3282 | static void atmel_management_frame(struct atmel_private *priv, |
3283 | struct ieee80211_hdr_4addr *header, | |
3284 | u16 frame_len, u8 rssi) | |
1da177e4 LT |
3285 | { |
3286 | u16 subtype; | |
4d791aad CP |
3287 | |
3288 | subtype = le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_STYPE; | |
3289 | switch (subtype) { | |
4861dd79 DW |
3290 | case IEEE80211_STYPE_BEACON: |
3291 | case IEEE80211_STYPE_PROBE_RESP: | |
4d791aad | 3292 | |
1da177e4 LT |
3293 | /* beacon frame has multiple variable-length fields - |
3294 | never let an engineer loose with a data structure design. */ | |
3295 | { | |
3296 | struct beacon_format { | |
3297 | u64 timestamp; | |
3298 | u16 interval; | |
3299 | u16 capability; | |
3300 | u8 ssid_el_id; | |
3301 | u8 ssid_length; | |
3302 | /* ssid here */ | |
3303 | u8 rates_el_id; | |
3304 | u8 rates_length; | |
3305 | /* rates here */ | |
3306 | u8 ds_el_id; | |
3307 | u8 ds_length; | |
3308 | /* ds here */ | |
3309 | } *beacon = (struct beacon_format *)priv->rx_buf; | |
4d791aad | 3310 | |
1da177e4 LT |
3311 | u8 channel, rates_length, ssid_length; |
3312 | u64 timestamp = le64_to_cpu(beacon->timestamp); | |
3313 | u16 beacon_interval = le16_to_cpu(beacon->interval); | |
3314 | u16 capability = le16_to_cpu(beacon->capability); | |
3315 | u8 *beaconp = priv->rx_buf; | |
3316 | ssid_length = beacon->ssid_length; | |
3317 | /* this blows chunks. */ | |
4d791aad | 3318 | if (frame_len < 14 || frame_len < ssid_length + 15) |
1da177e4 LT |
3319 | return; |
3320 | rates_length = beaconp[beacon->ssid_length + 15]; | |
3321 | if (frame_len < ssid_length + rates_length + 18) | |
3322 | return; | |
3323 | if (ssid_length > MAX_SSID_LENGTH) | |
3324 | return; | |
3325 | channel = beaconp[ssid_length + rates_length + 18]; | |
4d791aad | 3326 | |
1da177e4 LT |
3327 | if (priv->station_state == STATION_STATE_READY) { |
3328 | smooth_rssi(priv, rssi); | |
4d791aad | 3329 | if (is_frame_from_current_bss(priv, header)) { |
1da177e4 LT |
3330 | priv->beacons_this_sec++; |
3331 | atmel_smooth_qual(priv); | |
3332 | if (priv->last_beacon_timestamp) { | |
3333 | /* Note truncate this to 32 bits - kernel can't divide a long long */ | |
3334 | u32 beacon_delay = timestamp - priv->last_beacon_timestamp; | |
3335 | int beacons = beacon_delay / (beacon_interval * 1000); | |
3336 | if (beacons > 1) | |
3337 | priv->wstats.miss.beacon += beacons - 1; | |
3338 | } | |
3339 | priv->last_beacon_timestamp = timestamp; | |
3340 | handle_beacon_probe(priv, capability, channel); | |
3341 | } | |
3342 | } | |
4d791aad CP |
3343 | |
3344 | if (priv->station_state == STATION_STATE_SCANNING) | |
3345 | store_bss_info(priv, header, capability, | |
3346 | beacon_interval, channel, rssi, | |
3347 | ssid_length, | |
3348 | &beacon->rates_el_id, | |
4861dd79 | 3349 | subtype == IEEE80211_STYPE_BEACON); |
1da177e4 LT |
3350 | } |
3351 | break; | |
4d791aad | 3352 | |
4861dd79 | 3353 | case IEEE80211_STYPE_AUTH: |
1da177e4 LT |
3354 | |
3355 | if (priv->station_state == STATION_STATE_AUTHENTICATING) | |
3356 | authenticate(priv, frame_len); | |
4d791aad | 3357 | |
1da177e4 | 3358 | break; |
4d791aad | 3359 | |
4861dd79 DW |
3360 | case IEEE80211_STYPE_ASSOC_RESP: |
3361 | case IEEE80211_STYPE_REASSOC_RESP: | |
4d791aad CP |
3362 | |
3363 | if (priv->station_state == STATION_STATE_ASSOCIATING || | |
1da177e4 LT |
3364 | priv->station_state == STATION_STATE_REASSOCIATING) |
3365 | associate(priv, frame_len, subtype); | |
4d791aad | 3366 | |
1da177e4 LT |
3367 | break; |
3368 | ||
4861dd79 | 3369 | case IEEE80211_STYPE_DISASSOC: |
4d791aad CP |
3370 | if (priv->station_is_associated && |
3371 | priv->operating_mode == IW_MODE_INFRA && | |
1da177e4 LT |
3372 | is_frame_from_current_bss(priv, header)) { |
3373 | priv->station_was_associated = 0; | |
3374 | priv->station_is_associated = 0; | |
4d791aad | 3375 | |
1da177e4 LT |
3376 | atmel_enter_state(priv, STATION_STATE_JOINNING); |
3377 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3378 | } | |
4d791aad | 3379 | |
1da177e4 LT |
3380 | break; |
3381 | ||
4861dd79 | 3382 | case IEEE80211_STYPE_DEAUTH: |
1da177e4 LT |
3383 | if (priv->operating_mode == IW_MODE_INFRA && |
3384 | is_frame_from_current_bss(priv, header)) { | |
3385 | priv->station_was_associated = 0; | |
3386 | ||
3387 | atmel_enter_state(priv, STATION_STATE_JOINNING); | |
3388 | join(priv, BSS_TYPE_INFRASTRUCTURE); | |
3389 | } | |
4d791aad | 3390 | |
1da177e4 LT |
3391 | break; |
3392 | } | |
3393 | } | |
3394 | ||
3395 | /* run when timer expires */ | |
3396 | static void atmel_management_timer(u_long a) | |
3397 | { | |
4d791aad CP |
3398 | struct net_device *dev = (struct net_device *) a; |
3399 | struct atmel_private *priv = netdev_priv(dev); | |
3400 | unsigned long flags; | |
1da177e4 | 3401 | |
4d791aad CP |
3402 | /* Check if the card has been yanked. */ |
3403 | if (priv->card && priv->present_callback && | |
3404 | !(*priv->present_callback)(priv->card)) | |
3405 | return; | |
1da177e4 | 3406 | |
4d791aad CP |
3407 | spin_lock_irqsave(&priv->irqlock, flags); |
3408 | ||
3409 | switch (priv->station_state) { | |
1da177e4 | 3410 | |
4d791aad CP |
3411 | case STATION_STATE_AUTHENTICATING: |
3412 | if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) { | |
3413 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3414 | priv->station_is_associated = 0; | |
3415 | priv->AuthenticationRequestRetryCnt = 0; | |
3416 | restart_search(priv); | |
3417 | } else { | |
4861dd79 | 3418 | int auth = WLAN_AUTH_OPEN; |
4d791aad CP |
3419 | priv->AuthenticationRequestRetryCnt++; |
3420 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
3421 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
73451379 | 3422 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3423 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3424 | send_authentication_request(priv, auth, NULL, 0); |
4d791aad | 3425 | } |
1da177e4 | 3426 | break; |
4d791aad CP |
3427 | |
3428 | case STATION_STATE_ASSOCIATING: | |
3429 | if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3430 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3431 | priv->station_is_associated = 0; | |
3432 | priv->AssociationRequestRetryCnt = 0; | |
3433 | restart_search(priv); | |
3434 | } else { | |
3435 | priv->AssociationRequestRetryCnt++; | |
3436 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3437 | send_association_request(priv, 0); | |
3438 | } | |
1da177e4 | 3439 | break; |
4d791aad CP |
3440 | |
3441 | case STATION_STATE_REASSOCIATING: | |
3442 | if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) { | |
3443 | atmel_enter_state(priv, STATION_STATE_MGMT_ERROR); | |
3444 | priv->station_is_associated = 0; | |
3445 | priv->ReAssociationRequestRetryCnt = 0; | |
3446 | restart_search(priv); | |
3447 | } else { | |
3448 | priv->ReAssociationRequestRetryCnt++; | |
3449 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); | |
3450 | send_association_request(priv, 1); | |
3451 | } | |
3452 | break; | |
3453 | ||
3454 | default: | |
3455 | break; | |
3456 | } | |
3457 | ||
3458 | spin_unlock_irqrestore(&priv->irqlock, flags); | |
1da177e4 | 3459 | } |
4d791aad | 3460 | |
1da177e4 LT |
3461 | static void atmel_command_irq(struct atmel_private *priv) |
3462 | { | |
3463 | u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
3464 | u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET)); | |
3465 | int fast_scan; | |
3a1af6ff | 3466 | union iwreq_data wrqu; |
4d791aad CP |
3467 | |
3468 | if (status == CMD_STATUS_IDLE || | |
1da177e4 LT |
3469 | status == CMD_STATUS_IN_PROGRESS) |
3470 | return; | |
3471 | ||
3472 | switch (command){ | |
3473 | ||
3474 | case CMD_Start: | |
3475 | if (status == CMD_STATUS_COMPLETE) { | |
3476 | priv->station_was_associated = priv->station_is_associated; | |
3477 | atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS, | |
3478 | (u8 *)priv->CurrentBSSID, 6); | |
3479 | atmel_enter_state(priv, STATION_STATE_READY); | |
4d791aad | 3480 | } |
1da177e4 | 3481 | break; |
4d791aad | 3482 | |
1da177e4 LT |
3483 | case CMD_Scan: |
3484 | fast_scan = priv->fast_scan; | |
3485 | priv->fast_scan = 0; | |
4d791aad | 3486 | |
1da177e4 LT |
3487 | if (status != CMD_STATUS_COMPLETE) { |
3488 | atmel_scan(priv, 1); | |
3489 | } else { | |
3490 | int bss_index = retrieve_bss(priv); | |
3a1af6ff | 3491 | int notify_scan_complete = 1; |
1da177e4 LT |
3492 | if (bss_index != -1) { |
3493 | atmel_join_bss(priv, bss_index); | |
4d791aad | 3494 | } else if (priv->operating_mode == IW_MODE_ADHOC && |
1da177e4 LT |
3495 | priv->SSID_size != 0) { |
3496 | start(priv, BSS_TYPE_AD_HOC); | |
3497 | } else { | |
3498 | priv->fast_scan = !fast_scan; | |
3499 | atmel_scan(priv, 1); | |
3a1af6ff | 3500 | notify_scan_complete = 0; |
1da177e4 LT |
3501 | } |
3502 | priv->site_survey_state = SITE_SURVEY_COMPLETED; | |
3a1af6ff DW |
3503 | if (notify_scan_complete) { |
3504 | wrqu.data.length = 0; | |
3505 | wrqu.data.flags = 0; | |
3506 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
3507 | } | |
1da177e4 LT |
3508 | } |
3509 | break; | |
4d791aad | 3510 | |
1da177e4 LT |
3511 | case CMD_SiteSurvey: |
3512 | priv->fast_scan = 0; | |
4d791aad | 3513 | |
1da177e4 LT |
3514 | if (status != CMD_STATUS_COMPLETE) |
3515 | return; | |
4d791aad | 3516 | |
1da177e4 LT |
3517 | priv->site_survey_state = SITE_SURVEY_COMPLETED; |
3518 | if (priv->station_is_associated) { | |
4d791aad | 3519 | atmel_enter_state(priv, STATION_STATE_READY); |
3a1af6ff DW |
3520 | wrqu.data.length = 0; |
3521 | wrqu.data.flags = 0; | |
3522 | wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL); | |
1da177e4 LT |
3523 | } else { |
3524 | atmel_scan(priv, 1); | |
3525 | } | |
3526 | break; | |
3527 | ||
3528 | case CMD_Join: | |
3529 | if (status == CMD_STATUS_COMPLETE) { | |
3530 | if (priv->operating_mode == IW_MODE_ADHOC) { | |
3531 | priv->station_was_associated = priv->station_is_associated; | |
3532 | atmel_enter_state(priv, STATION_STATE_READY); | |
3533 | } else { | |
4861dd79 | 3534 | int auth = WLAN_AUTH_OPEN; |
1da177e4 LT |
3535 | priv->AuthenticationRequestRetryCnt = 0; |
3536 | atmel_enter_state(priv, STATION_STATE_AUTHENTICATING); | |
4d791aad | 3537 | |
1da177e4 LT |
3538 | mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES); |
3539 | priv->CurrentAuthentTransactionSeqNum = 0x0001; | |
73451379 | 3540 | if (priv->wep_is_on && priv->exclude_unencrypted) |
4861dd79 | 3541 | auth = WLAN_AUTH_SHARED_KEY; |
73451379 | 3542 | send_authentication_request(priv, auth, NULL, 0); |
1da177e4 LT |
3543 | } |
3544 | return; | |
3545 | } | |
4d791aad | 3546 | |
1da177e4 | 3547 | atmel_scan(priv, 1); |
1da177e4 LT |
3548 | } |
3549 | } | |
3550 | ||
3551 | static int atmel_wakeup_firmware(struct atmel_private *priv) | |
3552 | { | |
3553 | struct host_info_struct *iface = &priv->host_info; | |
3554 | u16 mr1, mr3; | |
3555 | int i; | |
3556 | ||
3557 | if (priv->card_type == CARD_TYPE_SPI_FLASH) | |
3558 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
4d791aad | 3559 | |
1da177e4 LT |
3560 | /* wake up on-board processor */ |
3561 | atmel_clear_gcr(priv->dev, 0x0040); | |
3562 | atmel_write16(priv->dev, BSR, BSS_SRAM); | |
4d791aad | 3563 | |
1da177e4 LT |
3564 | if (priv->card_type == CARD_TYPE_SPI_FLASH) |
3565 | mdelay(100); | |
3566 | ||
3567 | /* and wait for it */ | |
4d791aad | 3568 | for (i = LOOP_RETRY_LIMIT; i; i--) { |
1da177e4 LT |
3569 | mr1 = atmel_read16(priv->dev, MR1); |
3570 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3571 | |
3572 | if (mr3 & MAC_BOOT_COMPLETE) | |
1da177e4 LT |
3573 | break; |
3574 | if (mr1 & MAC_BOOT_COMPLETE && | |
3575 | priv->bus_type == BUS_TYPE_PCCARD) | |
3576 | break; | |
3577 | } | |
3578 | ||
3579 | if (i == 0) { | |
3580 | printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name); | |
3581 | return 0; | |
3582 | } | |
4d791aad | 3583 | |
1da177e4 LT |
3584 | if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) { |
3585 | printk(KERN_ALERT "%s: card missing.\n", priv->dev->name); | |
3586 | return 0; | |
3587 | } | |
4d791aad CP |
3588 | |
3589 | /* now check for completion of MAC initialization through | |
3590 | the FunCtrl field of the IFACE, poll MR1 to detect completion of | |
3591 | MAC initialization, check completion status, set interrupt mask, | |
3592 | enables interrupts and calls Tx and Rx initialization functions */ | |
3593 | ||
1da177e4 | 3594 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE); |
4d791aad CP |
3595 | |
3596 | for (i = LOOP_RETRY_LIMIT; i; i--) { | |
1da177e4 LT |
3597 | mr1 = atmel_read16(priv->dev, MR1); |
3598 | mr3 = atmel_read16(priv->dev, MR3); | |
4d791aad CP |
3599 | |
3600 | if (mr3 & MAC_INIT_COMPLETE) | |
1da177e4 LT |
3601 | break; |
3602 | if (mr1 & MAC_INIT_COMPLETE && | |
3603 | priv->bus_type == BUS_TYPE_PCCARD) | |
3604 | break; | |
3605 | } | |
4d791aad | 3606 | |
1da177e4 | 3607 | if (i == 0) { |
4d791aad CP |
3608 | printk(KERN_ALERT "%s: MAC failed to initialise.\n", |
3609 | priv->dev->name); | |
1da177e4 LT |
3610 | return 0; |
3611 | } | |
4d791aad | 3612 | |
1da177e4 LT |
3613 | /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */ |
3614 | if ((mr3 & MAC_INIT_COMPLETE) && | |
3615 | !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) { | |
3616 | printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name); | |
3617 | return 0; | |
3618 | } | |
3619 | if ((mr1 & MAC_INIT_COMPLETE) && | |
3620 | !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) { | |
3621 | printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name); | |
3622 | return 0; | |
3623 | } | |
3624 | ||
4d791aad | 3625 | atmel_copy_to_host(priv->dev, (unsigned char *)iface, |
1da177e4 | 3626 | priv->host_info_base, sizeof(*iface)); |
4d791aad | 3627 | |
1da177e4 LT |
3628 | iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos); |
3629 | iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size); | |
3630 | iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos); | |
3631 | iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count); | |
3632 | iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos); | |
3633 | iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size); | |
3634 | iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos); | |
3635 | iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count); | |
3636 | iface->build_version = le16_to_cpu(iface->build_version); | |
3637 | iface->command_pos = le16_to_cpu(iface->command_pos); | |
3638 | iface->major_version = le16_to_cpu(iface->major_version); | |
3639 | iface->minor_version = le16_to_cpu(iface->minor_version); | |
3640 | iface->func_ctrl = le16_to_cpu(iface->func_ctrl); | |
3641 | iface->mac_status = le16_to_cpu(iface->mac_status); | |
3642 | ||
3643 | return 1; | |
3644 | } | |
3645 | ||
3646 | /* determine type of memory and MAC address */ | |
3647 | static int probe_atmel_card(struct net_device *dev) | |
3648 | { | |
3649 | int rc = 0; | |
3650 | struct atmel_private *priv = netdev_priv(dev); | |
4d791aad | 3651 | |
1da177e4 | 3652 | /* reset pccard */ |
4d791aad | 3653 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3654 | atmel_write16(dev, GCR, 0x0060); |
4d791aad | 3655 | |
1da177e4 LT |
3656 | atmel_write16(dev, GCR, 0x0040); |
3657 | mdelay(500); | |
4d791aad | 3658 | |
1da177e4 | 3659 | if (atmel_read16(dev, MR2) == 0) { |
4d791aad | 3660 | /* No stored firmware so load a small stub which just |
1da177e4 LT |
3661 | tells us the MAC address */ |
3662 | int i; | |
3663 | priv->card_type = CARD_TYPE_EEPROM; | |
3664 | atmel_write16(dev, BSR, BSS_IRAM); | |
3665 | atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader)); | |
3666 | atmel_set_gcr(dev, GCR_REMAP); | |
3667 | atmel_clear_gcr(priv->dev, 0x0040); | |
3668 | atmel_write16(dev, BSR, BSS_SRAM); | |
4d791aad | 3669 | for (i = LOOP_RETRY_LIMIT; i; i--) |
1da177e4 LT |
3670 | if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE) |
3671 | break; | |
3672 | if (i == 0) { | |
3673 | printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name); | |
3674 | } else { | |
3675 | atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6); | |
3676 | /* got address, now squash it again until the network | |
3677 | interface is opened */ | |
4d791aad | 3678 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3679 | atmel_write16(dev, GCR, 0x0060); |
3680 | atmel_write16(dev, GCR, 0x0040); | |
3681 | rc = 1; | |
3682 | } | |
3683 | } else if (atmel_read16(dev, MR4) == 0) { | |
3684 | /* Mac address easy in this case. */ | |
3685 | priv->card_type = CARD_TYPE_PARALLEL_FLASH; | |
4d791aad | 3686 | atmel_write16(dev, BSR, 1); |
1da177e4 LT |
3687 | atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6); |
3688 | atmel_write16(dev, BSR, 0x200); | |
3689 | rc = 1; | |
3690 | } else { | |
3691 | /* Standard firmware in flash, boot it up and ask | |
3692 | for the Mac Address */ | |
3693 | priv->card_type = CARD_TYPE_SPI_FLASH; | |
3694 | if (atmel_wakeup_firmware(priv)) { | |
3695 | atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6); | |
4d791aad | 3696 | |
1da177e4 LT |
3697 | /* got address, now squash it again until the network |
3698 | interface is opened */ | |
4d791aad | 3699 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 LT |
3700 | atmel_write16(dev, GCR, 0x0060); |
3701 | atmel_write16(dev, GCR, 0x0040); | |
3702 | rc = 1; | |
3703 | } | |
3704 | } | |
4d791aad | 3705 | |
1da177e4 LT |
3706 | if (rc) { |
3707 | if (dev->dev_addr[0] == 0xFF) { | |
3708 | u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00}; | |
3709 | printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name); | |
3710 | memcpy(dev->dev_addr, default_mac, 6); | |
3711 | } | |
1da177e4 | 3712 | } |
4d791aad | 3713 | |
1da177e4 LT |
3714 | return rc; |
3715 | } | |
3716 | ||
1da177e4 LT |
3717 | /* Move the encyption information on the MIB structure. |
3718 | This routine is for the pre-WPA firmware: later firmware has | |
3719 | a different format MIB and a different routine. */ | |
4d791aad | 3720 | static void build_wep_mib(struct atmel_private *priv) |
1da177e4 LT |
3721 | { |
3722 | struct { /* NB this is matched to the hardware, don't change. */ | |
4d791aad | 3723 | u8 wep_is_on; |
1da177e4 LT |
3724 | u8 default_key; /* 0..3 */ |
3725 | u8 reserved; | |
3726 | u8 exclude_unencrypted; | |
4d791aad | 3727 | |
1da177e4 LT |
3728 | u32 WEPICV_error_count; |
3729 | u32 WEP_excluded_count; | |
4d791aad | 3730 | |
1da177e4 | 3731 | u8 wep_keys[MAX_ENCRYPTION_KEYS][13]; |
4d791aad CP |
3732 | u8 encryption_level; /* 0, 1, 2 */ |
3733 | u8 reserved2[3]; | |
1da177e4 LT |
3734 | } mib; |
3735 | int i; | |
3736 | ||
3737 | mib.wep_is_on = priv->wep_is_on; | |
3738 | if (priv->wep_is_on) { | |
3739 | if (priv->wep_key_len[priv->default_key] > 5) | |
3740 | mib.encryption_level = 2; | |
3741 | else | |
4d791aad | 3742 | mib.encryption_level = 1; |
1da177e4 LT |
3743 | } else { |
3744 | mib.encryption_level = 0; | |
3745 | } | |
3746 | ||
3747 | mib.default_key = priv->default_key; | |
3748 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
4d791aad CP |
3749 | |
3750 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) | |
1da177e4 | 3751 | memcpy(mib.wep_keys[i], priv->wep_keys[i], 13); |
4d791aad | 3752 | |
1da177e4 LT |
3753 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3754 | } | |
3755 | ||
3756 | static void build_wpa_mib(struct atmel_private *priv) | |
3757 | { | |
4d791aad | 3758 | /* This is for the later (WPA enabled) firmware. */ |
1da177e4 LT |
3759 | |
3760 | struct { /* NB this is matched to the hardware, don't change. */ | |
3761 | u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE]; | |
3762 | u8 receiver_address[6]; | |
4d791aad | 3763 | u8 wep_is_on; |
1da177e4 LT |
3764 | u8 default_key; /* 0..3 */ |
3765 | u8 group_key; | |
3766 | u8 exclude_unencrypted; | |
3767 | u8 encryption_type; | |
3768 | u8 reserved; | |
4d791aad | 3769 | |
1da177e4 LT |
3770 | u32 WEPICV_error_count; |
3771 | u32 WEP_excluded_count; | |
4d791aad | 3772 | |
1da177e4 LT |
3773 | u8 key_RSC[4][8]; |
3774 | } mib; | |
4d791aad | 3775 | |
1da177e4 LT |
3776 | int i; |
3777 | ||
3778 | mib.wep_is_on = priv->wep_is_on; | |
3779 | mib.exclude_unencrypted = priv->exclude_unencrypted; | |
3780 | memcpy(mib.receiver_address, priv->CurrentBSSID, 6); | |
4d791aad | 3781 | |
1da177e4 LT |
3782 | /* zero all the keys before adding in valid ones. */ |
3783 | memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value)); | |
4d791aad | 3784 | |
1da177e4 | 3785 | if (priv->wep_is_on) { |
4d791aad CP |
3786 | /* There's a comment in the Atmel code to the effect that this |
3787 | is only valid when still using WEP, it may need to be set to | |
3788 | something to use WPA */ | |
1da177e4 | 3789 | memset(mib.key_RSC, 0, sizeof(mib.key_RSC)); |
4d791aad | 3790 | |
1da177e4 LT |
3791 | mib.default_key = mib.group_key = 255; |
3792 | for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) { | |
3793 | if (priv->wep_key_len[i] > 0) { | |
3794 | memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE); | |
3795 | if (i == priv->default_key) { | |
3796 | mib.default_key = i; | |
3797 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7; | |
4d791aad | 3798 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite; |
1da177e4 LT |
3799 | } else { |
3800 | mib.group_key = i; | |
3801 | priv->group_cipher_suite = priv->pairwise_cipher_suite; | |
3802 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1; | |
4d791aad | 3803 | mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite; |
1da177e4 LT |
3804 | } |
3805 | } | |
3806 | } | |
3807 | if (mib.default_key == 255) | |
3808 | mib.default_key = mib.group_key != 255 ? mib.group_key : 0; | |
3809 | if (mib.group_key == 255) | |
3810 | mib.group_key = mib.default_key; | |
4d791aad | 3811 | |
1da177e4 | 3812 | } |
4d791aad | 3813 | |
1da177e4 LT |
3814 | atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib)); |
3815 | } | |
4d791aad CP |
3816 | |
3817 | static int reset_atmel_card(struct net_device *dev) | |
1da177e4 LT |
3818 | { |
3819 | /* do everything necessary to wake up the hardware, including | |
3820 | waiting for the lightning strike and throwing the knife switch.... | |
3821 | ||
4d791aad | 3822 | set all the Mib values which matter in the card to match |
1da177e4 LT |
3823 | their settings in the atmel_private structure. Some of these |
3824 | can be altered on the fly, but many (WEP, infrastucture or ad-hoc) | |
3825 | can only be changed by tearing down the world and coming back through | |
3826 | here. | |
3827 | ||
4d791aad CP |
3828 | This routine is also responsible for initialising some |
3829 | hardware-specific fields in the atmel_private structure, | |
1da177e4 LT |
3830 | including a copy of the firmware's hostinfo stucture |
3831 | which is the route into the rest of the firmare datastructures. */ | |
3832 | ||
3833 | struct atmel_private *priv = netdev_priv(dev); | |
3834 | u8 configuration; | |
9a6301c1 | 3835 | int old_state = priv->station_state; |
4d791aad | 3836 | |
1da177e4 LT |
3837 | /* data to add to the firmware names, in priority order |
3838 | this implemenents firmware versioning */ | |
4d791aad | 3839 | |
1da177e4 LT |
3840 | static char *firmware_modifier[] = { |
3841 | "-wpa", | |
3842 | "", | |
3843 | NULL | |
3844 | }; | |
4d791aad | 3845 | |
1da177e4 | 3846 | /* reset pccard */ |
4d791aad | 3847 | if (priv->bus_type == BUS_TYPE_PCCARD) |
1da177e4 | 3848 | atmel_write16(priv->dev, GCR, 0x0060); |
4d791aad | 3849 | |
1da177e4 LT |
3850 | /* stop card , disable interrupts */ |
3851 | atmel_write16(priv->dev, GCR, 0x0040); | |
4d791aad | 3852 | |
1da177e4 LT |
3853 | if (priv->card_type == CARD_TYPE_EEPROM) { |
3854 | /* copy in firmware if needed */ | |
3855 | const struct firmware *fw_entry = NULL; | |
3856 | unsigned char *fw; | |
3857 | int len = priv->firmware_length; | |
3858 | if (!(fw = priv->firmware)) { | |
3859 | if (priv->firmware_type == ATMEL_FW_TYPE_NONE) { | |
3860 | if (strlen(priv->firmware_id) == 0) { | |
3861 | printk(KERN_INFO | |
3862 | "%s: card type is unknown: assuming at76c502 firmware is OK.\n", | |
3863 | dev->name); | |
3864 | printk(KERN_INFO | |
4d791aad | 3865 | "%s: if not, use the firmware= module parameter.\n", |
1da177e4 LT |
3866 | dev->name); |
3867 | strcpy(priv->firmware_id, "atmel_at76c502.bin"); | |
3868 | } | |
3869 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) != 0) { | |
4d791aad CP |
3870 | printk(KERN_ALERT |
3871 | "%s: firmware %s is missing, cannot continue.\n", | |
1da177e4 LT |
3872 | dev->name, priv->firmware_id); |
3873 | return 0; | |
3874 | } | |
3875 | } else { | |
3876 | int fw_index = 0; | |
3877 | int success = 0; | |
3878 | ||
3879 | /* get firmware filename entry based on firmware type ID */ | |
3880 | while (fw_table[fw_index].fw_type != priv->firmware_type | |
3881 | && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) | |
3882 | fw_index++; | |
4d791aad | 3883 | |
1da177e4 LT |
3884 | /* construct the actual firmware file name */ |
3885 | if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) { | |
3886 | int i; | |
3887 | for (i = 0; firmware_modifier[i]; i++) { | |
3888 | snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file, | |
3889 | firmware_modifier[i], fw_table[fw_index].fw_file_ext); | |
3890 | priv->firmware_id[31] = '\0'; | |
3891 | if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) { | |
3892 | success = 1; | |
3893 | break; | |
3894 | } | |
3895 | } | |
3896 | } | |
3897 | if (!success) { | |
4d791aad CP |
3898 | printk(KERN_ALERT |
3899 | "%s: firmware %s is missing, cannot start.\n", | |
1da177e4 LT |
3900 | dev->name, priv->firmware_id); |
3901 | priv->firmware_id[0] = '\0'; | |
4d791aad | 3902 | return 0; |
1da177e4 LT |
3903 | } |
3904 | } | |
4d791aad | 3905 | |
1da177e4 LT |
3906 | fw = fw_entry->data; |
3907 | len = fw_entry->size; | |
3908 | } | |
4d791aad | 3909 | |
1da177e4 LT |
3910 | if (len <= 0x6000) { |
3911 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3912 | atmel_copy_to_card(priv->dev, 0, fw, len); | |
3913 | atmel_set_gcr(priv->dev, GCR_REMAP); | |
3914 | } else { | |
4d791aad | 3915 | /* Remap */ |
1da177e4 LT |
3916 | atmel_set_gcr(priv->dev, GCR_REMAP); |
3917 | atmel_write16(priv->dev, BSR, BSS_IRAM); | |
3918 | atmel_copy_to_card(priv->dev, 0, fw, 0x6000); | |
3919 | atmel_write16(priv->dev, BSR, 0x2ff); | |
3920 | atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000); | |
3921 | } | |
3922 | ||
3923 | if (fw_entry) | |
3924 | release_firmware(fw_entry); | |
3925 | } | |
3926 | ||
3927 | if (!atmel_wakeup_firmware(priv)) | |
3928 | return 0; | |
3929 | ||
3930 | /* Check the version and set the correct flag for wpa stuff, | |
3931 | old and new firmware is incompatible. | |
3932 | The pre-wpa 3com firmware reports major version 5, | |
3933 | the wpa 3com firmware is major version 4 and doesn't need | |
3934 | the 3com broken-ness filter. */ | |
3935 | priv->use_wpa = (priv->host_info.major_version == 4); | |
3936 | priv->radio_on_broken = (priv->host_info.major_version == 5); | |
4d791aad | 3937 | |
1da177e4 LT |
3938 | /* unmask all irq sources */ |
3939 | atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff); | |
4d791aad | 3940 | |
1da177e4 LT |
3941 | /* int Tx system and enable Tx */ |
3942 | atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0); | |
3943 | atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L); | |
3944 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0); | |
3945 | atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0); | |
3946 | ||
4d791aad CP |
3947 | priv->tx_desc_free = priv->host_info.tx_desc_count; |
3948 | priv->tx_desc_head = 0; | |
3949 | priv->tx_desc_tail = 0; | |
1da177e4 LT |
3950 | priv->tx_desc_previous = 0; |
3951 | priv->tx_free_mem = priv->host_info.tx_buff_size; | |
4d791aad CP |
3952 | priv->tx_buff_head = 0; |
3953 | priv->tx_buff_tail = 0; | |
3954 | ||
3955 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
3956 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 LT |
3957 | configuration | FUNC_CTRL_TxENABLE); |
3958 | ||
3959 | /* init Rx system and enable */ | |
3960 | priv->rx_desc_head = 0; | |
4d791aad CP |
3961 | |
3962 | configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET)); | |
3963 | atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), | |
1da177e4 | 3964 | configuration | FUNC_CTRL_RxENABLE); |
4d791aad | 3965 | |
1da177e4 | 3966 | if (!priv->radio_on_broken) { |
4d791aad | 3967 | if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) == |
1da177e4 | 3968 | CMD_STATUS_REJECTED_RADIO_OFF) { |
4d791aad | 3969 | printk(KERN_INFO |
1da177e4 LT |
3970 | "%s: cannot turn the radio on. (Hey radio, you're beautiful!)\n", |
3971 | dev->name); | |
3972 | return 0; | |
3973 | } | |
3974 | } | |
4d791aad | 3975 | |
1da177e4 LT |
3976 | /* set up enough MIB values to run. */ |
3977 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate); | |
3978 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF); | |
3979 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold); | |
3980 | atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold); | |
3981 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry); | |
3982 | atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry); | |
3983 | atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble); | |
4d791aad | 3984 | atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS, |
1da177e4 LT |
3985 | priv->dev->dev_addr, 6); |
3986 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE); | |
3987 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1); | |
3988 | atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period); | |
3989 | atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4); | |
3990 | atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on); | |
3991 | if (priv->use_wpa) | |
3992 | build_wpa_mib(priv); | |
3993 | else | |
3994 | build_wep_mib(priv); | |
4d791aad | 3995 | |
9a6301c1 DW |
3996 | if (old_state == STATION_STATE_READY) |
3997 | { | |
3998 | union iwreq_data wrqu; | |
3999 | ||
4000 | wrqu.data.length = 0; | |
4001 | wrqu.data.flags = 0; | |
4002 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
4003 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
4004 | wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL); | |
4005 | } | |
4006 | ||
1da177e4 LT |
4007 | return 1; |
4008 | } | |
4009 | ||
4d791aad CP |
4010 | static void atmel_send_command(struct atmel_private *priv, int command, |
4011 | void *cmd, int cmd_size) | |
1da177e4 LT |
4012 | { |
4013 | if (cmd) | |
4d791aad | 4014 | atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET), |
1da177e4 | 4015 | cmd, cmd_size); |
4d791aad | 4016 | |
1da177e4 LT |
4017 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command); |
4018 | atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0); | |
4019 | } | |
4d791aad CP |
4020 | |
4021 | static int atmel_send_command_wait(struct atmel_private *priv, int command, | |
4022 | void *cmd, int cmd_size) | |
1da177e4 LT |
4023 | { |
4024 | int i, status; | |
4d791aad | 4025 | |
1da177e4 | 4026 | atmel_send_command(priv, command, cmd, cmd_size); |
4d791aad | 4027 | |
1da177e4 LT |
4028 | for (i = 5000; i; i--) { |
4029 | status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET)); | |
4d791aad | 4030 | if (status != CMD_STATUS_IDLE && |
1da177e4 LT |
4031 | status != CMD_STATUS_IN_PROGRESS) |
4032 | break; | |
4033 | udelay(20); | |
4034 | } | |
4d791aad | 4035 | |
1da177e4 LT |
4036 | if (i == 0) { |
4037 | printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name); | |
4038 | status = CMD_STATUS_HOST_ERROR; | |
4d791aad | 4039 | } else { |
1da177e4 LT |
4040 | if (command != CMD_EnableRadio) |
4041 | status = CMD_STATUS_COMPLETE; | |
4042 | } | |
4d791aad | 4043 | |
1da177e4 LT |
4044 | return status; |
4045 | } | |
4046 | ||
4047 | static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index) | |
4048 | { | |
4049 | struct get_set_mib m; | |
4050 | m.type = type; | |
4051 | m.size = 1; | |
4052 | m.index = index; | |
4053 | ||
4054 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4055 | return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE)); | |
4056 | } | |
4057 | ||
4058 | static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data) | |
4059 | { | |
4060 | struct get_set_mib m; | |
4061 | m.type = type; | |
4062 | m.size = 1; | |
4063 | m.index = index; | |
4064 | m.data[0] = data; | |
4065 | ||
4066 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1); | |
4067 | } | |
4068 | ||
4d791aad CP |
4069 | static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index, |
4070 | u16 data) | |
1da177e4 LT |
4071 | { |
4072 | struct get_set_mib m; | |
4073 | m.type = type; | |
4074 | m.size = 2; | |
4075 | m.index = index; | |
4076 | m.data[0] = data; | |
4077 | m.data[1] = data >> 8; | |
4078 | ||
4079 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2); | |
4080 | } | |
4081 | ||
4d791aad CP |
4082 | static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index, |
4083 | u8 *data, int data_len) | |
1da177e4 LT |
4084 | { |
4085 | struct get_set_mib m; | |
4086 | m.type = type; | |
4087 | m.size = data_len; | |
4088 | m.index = index; | |
4089 | ||
4090 | if (data_len > MIB_MAX_DATA_BYTES) | |
4091 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4092 | |
1da177e4 LT |
4093 | memcpy(m.data, data, data_len); |
4094 | atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); | |
4095 | } | |
4096 | ||
4d791aad CP |
4097 | static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index, |
4098 | u8 *data, int data_len) | |
1da177e4 LT |
4099 | { |
4100 | struct get_set_mib m; | |
4101 | m.type = type; | |
4102 | m.size = data_len; | |
4103 | m.index = index; | |
4d791aad | 4104 | |
1da177e4 LT |
4105 | if (data_len > MIB_MAX_DATA_BYTES) |
4106 | printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name); | |
4d791aad | 4107 | |
1da177e4 | 4108 | atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len); |
4d791aad | 4109 | atmel_copy_to_host(priv->dev, data, |
1da177e4 LT |
4110 | atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len); |
4111 | } | |
4112 | ||
4113 | static void atmel_writeAR(struct net_device *dev, u16 data) | |
4114 | { | |
4115 | int i; | |
4116 | outw(data, dev->base_addr + AR); | |
4117 | /* Address register appears to need some convincing..... */ | |
4d791aad | 4118 | for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++) |
1da177e4 LT |
4119 | outw(data, dev->base_addr + AR); |
4120 | } | |
4121 | ||
4d791aad CP |
4122 | static void atmel_copy_to_card(struct net_device *dev, u16 dest, |
4123 | unsigned char *src, u16 len) | |
1da177e4 LT |
4124 | { |
4125 | int i; | |
4126 | atmel_writeAR(dev, dest); | |
4127 | if (dest % 2) { | |
4128 | atmel_write8(dev, DR, *src); | |
4129 | src++; len--; | |
4130 | } | |
4131 | for (i = len; i > 1 ; i -= 2) { | |
4132 | u8 lb = *src++; | |
4133 | u8 hb = *src++; | |
4134 | atmel_write16(dev, DR, lb | (hb << 8)); | |
4135 | } | |
4136 | if (i) | |
4137 | atmel_write8(dev, DR, *src); | |
4138 | } | |
4139 | ||
4d791aad CP |
4140 | static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest, |
4141 | u16 src, u16 len) | |
1da177e4 LT |
4142 | { |
4143 | int i; | |
4144 | atmel_writeAR(dev, src); | |
4145 | if (src % 2) { | |
4146 | *dest = atmel_read8(dev, DR); | |
4147 | dest++; len--; | |
4148 | } | |
4149 | for (i = len; i > 1 ; i -= 2) { | |
4150 | u16 hw = atmel_read16(dev, DR); | |
4151 | *dest++ = hw; | |
4152 | *dest++ = hw >> 8; | |
4153 | } | |
4154 | if (i) | |
4155 | *dest = atmel_read8(dev, DR); | |
4156 | } | |
4157 | ||
4158 | static void atmel_set_gcr(struct net_device *dev, u16 mask) | |
4159 | { | |
4160 | outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR); | |
4161 | } | |
4162 | ||
4163 | static void atmel_clear_gcr(struct net_device *dev, u16 mask) | |
4164 | { | |
4165 | outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR); | |
4166 | } | |
4167 | ||
4168 | static int atmel_lock_mac(struct atmel_private *priv) | |
4169 | { | |
4170 | int i, j = 20; | |
4171 | retry: | |
4172 | for (i = 5000; i; i--) { | |
4173 | if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) | |
4174 | break; | |
4175 | udelay(20); | |
4176 | } | |
4d791aad CP |
4177 | |
4178 | if (!i) | |
4179 | return 0; /* timed out */ | |
4180 | ||
1da177e4 LT |
4181 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1); |
4182 | if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) { | |
4183 | atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0); | |
4d791aad CP |
4184 | if (!j--) |
4185 | return 0; /* timed out */ | |
1da177e4 LT |
4186 | goto retry; |
4187 | } | |
4d791aad | 4188 | |
1da177e4 LT |
4189 | return 1; |
4190 | } | |
4191 | ||
4192 | static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data) | |
4193 | { | |
4d791aad | 4194 | atmel_writeAR(priv->dev, pos); |
1da177e4 LT |
4195 | atmel_write16(priv->dev, DR, data); /* card is little-endian */ |
4196 | atmel_write16(priv->dev, DR, data >> 16); | |
4197 | } | |
4198 | ||
4199 | /***************************************************************************/ | |
4200 | /* There follows the source form of the MAC address reading firmware */ | |
4201 | /***************************************************************************/ | |
4202 | #if 0 | |
4203 | ||
4204 | /* Copyright 2003 Matthew T. Russotto */ | |
4205 | /* But derived from the Atmel 76C502 firmware written by Atmel and */ | |
4206 | /* included in "atmel wireless lan drivers" package */ | |
4207 | /** | |
4208 | This file is part of net.russotto.AtmelMACFW, hereto referred to | |
4209 | as AtmelMACFW | |
4210 | ||
4211 | AtmelMACFW is free software; you can redistribute it and/or modify | |
4212 | it under the terms of the GNU General Public License version 2 | |
4213 | as published by the Free Software Foundation. | |
4214 | ||
4215 | AtmelMACFW is distributed in the hope that it will be useful, | |
4216 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
4217 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
4218 | GNU General Public License for more details. | |
4219 | ||
4220 | You should have received a copy of the GNU General Public License | |
4221 | along with AtmelMACFW; if not, write to the Free Software | |
4222 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
4223 | ||
4224 | ****************************************************************************/ | |
4225 | /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */ | |
4226 | /* It will probably work on the 76C504 and 76C502 RFMD_3COM */ | |
4227 | /* It only works on SPI EEPROM versions of the card. */ | |
4228 | ||
4229 | /* This firmware initializes the SPI controller and clock, reads the MAC */ | |
4230 | /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */ | |
4231 | /* address in MR2, and sets MR3 to 0x10 to indicate it is done */ | |
4232 | /* It also puts a complete copy of the EEPROM in SRAM with the offset in */ | |
4233 | /* MR4, for investigational purposes (maybe we can determine chip type */ | |
4234 | /* from that?) */ | |
4235 | ||
4236 | .org 0 | |
4237 | .set MRBASE, 0x8000000 | |
4238 | .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */ | |
4239 | .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */ | |
4240 | .set SRAM_BASE, 0x02000000 | |
4241 | .set SP_BASE, 0x0F300000 | |
4242 | .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */ | |
4243 | .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */ | |
4244 | .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */ | |
4245 | .set STACK_BASE, 0x5600 | |
4246 | .set SP_SR, 0x10 | |
4247 | .set SP_TDRE, 2 /* status register bit -- TDR empty */ | |
4248 | .set SP_RDRF, 1 /* status register bit -- RDR full */ | |
4249 | .set SP_SWRST, 0x80 | |
4250 | .set SP_SPIEN, 0x1 | |
4251 | .set SP_CR, 0 /* control register */ | |
4252 | .set SP_MR, 4 /* mode register */ | |
4253 | .set SP_RDR, 0x08 /* Read Data Register */ | |
4254 | .set SP_TDR, 0x0C /* Transmit Data Register */ | |
4255 | .set SP_CSR0, 0x30 /* chip select registers */ | |
4256 | .set SP_CSR1, 0x34 | |
4257 | .set SP_CSR2, 0x38 | |
4258 | .set SP_CSR3, 0x3C | |
4259 | .set NVRAM_CMD_RDSR, 5 /* read status register */ | |
4260 | .set NVRAM_CMD_READ, 3 /* read data */ | |
4261 | .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */ | |
4262 | .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the | |
4263 | serial output, since SO is normally high. But it | |
4264 | does cause 8 clock cycles and thus 8 bits to be | |
4265 | clocked in to the chip. See Atmel's SPI | |
4d791aad | 4266 | controller (e.g. AT91M55800) timing and 4K |
1da177e4 | 4267 | SPI EEPROM manuals */ |
4d791aad | 4268 | |
1da177e4 LT |
4269 | .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */ |
4270 | .set NVRAM_IMAGE, 0x02000200 | |
4271 | .set NVRAM_LENGTH, 0x0200 | |
4272 | .set MAC_ADDRESS_MIB, SRAM_BASE | |
4273 | .set MAC_ADDRESS_LENGTH, 6 | |
4274 | .set MAC_BOOT_FLAG, 0x10 | |
4275 | .set MR1, 0 | |
4276 | .set MR2, 4 | |
4277 | .set MR3, 8 | |
4278 | .set MR4, 0xC | |
4279 | RESET_VECTOR: | |
4280 | b RESET_HANDLER | |
4d791aad | 4281 | UNDEF_VECTOR: |
1da177e4 | 4282 | b HALT1 |
4d791aad | 4283 | SWI_VECTOR: |
1da177e4 | 4284 | b HALT1 |
4d791aad | 4285 | IABORT_VECTOR: |
1da177e4 | 4286 | b HALT1 |
4d791aad CP |
4287 | DABORT_VECTOR: |
4288 | RESERVED_VECTOR: | |
1da177e4 | 4289 | b HALT1 |
4d791aad | 4290 | IRQ_VECTOR: |
1da177e4 | 4291 | b HALT1 |
4d791aad | 4292 | FIQ_VECTOR: |
1da177e4 LT |
4293 | b HALT1 |
4294 | HALT1: b HALT1 | |
4295 | RESET_HANDLER: | |
4296 | mov r0, #CPSR_INITIAL | |
4297 | msr CPSR_c, r0 /* This is probably unnecessary */ | |
4d791aad | 4298 | |
1da177e4 LT |
4299 | /* I'm guessing this is initializing clock generator electronics for SPI */ |
4300 | ldr r0, =SPI_CGEN_BASE | |
4301 | mov r1, #0 | |
4302 | mov r1, r1, lsl #3 | |
4303 | orr r1,r1, #0 | |
4304 | str r1, [r0] | |
4305 | ldr r1, [r0, #28] | |
4306 | bic r1, r1, #16 | |
4307 | str r1, [r0, #28] | |
4308 | mov r1, #1 | |
4309 | str r1, [r0, #8] | |
4d791aad | 4310 | |
1da177e4 LT |
4311 | ldr r0, =MRBASE |
4312 | mov r1, #0 | |
4313 | strh r1, [r0, #MR1] | |
4314 | strh r1, [r0, #MR2] | |
4315 | strh r1, [r0, #MR3] | |
4316 | strh r1, [r0, #MR4] | |
4317 | ||
4318 | mov sp, #STACK_BASE | |
4319 | bl SP_INIT | |
4320 | mov r0, #10 | |
4321 | bl DELAY9 | |
4322 | bl GET_MAC_ADDR | |
4323 | bl GET_WHOLE_NVRAM | |
4324 | ldr r0, =MRBASE | |
4325 | ldr r1, =MAC_ADDRESS_MIB | |
4326 | strh r1, [r0, #MR2] | |
4327 | ldr r1, =NVRAM_IMAGE | |
4328 | strh r1, [r0, #MR4] | |
4329 | mov r1, #MAC_BOOT_FLAG | |
4330 | strh r1, [r0, #MR3] | |
4331 | HALT2: b HALT2 | |
4332 | .func Get_Whole_NVRAM, GET_WHOLE_NVRAM | |
4333 | GET_WHOLE_NVRAM: | |
4334 | stmdb sp!, {lr} | |
4335 | mov r2, #0 /* 0th bytes of NVRAM */ | |
4336 | mov r3, #NVRAM_LENGTH | |
4337 | mov r1, #0 /* not used in routine */ | |
4338 | ldr r0, =NVRAM_IMAGE | |
4339 | bl NVRAM_XFER | |
4340 | ldmia sp!, {lr} | |
4341 | bx lr | |
4342 | .endfunc | |
4d791aad | 4343 | |
1da177e4 LT |
4344 | .func Get_MAC_Addr, GET_MAC_ADDR |
4345 | GET_MAC_ADDR: | |
4346 | stmdb sp!, {lr} | |
4347 | mov r2, #0x120 /* address of MAC Address within NVRAM */ | |
4348 | mov r3, #MAC_ADDRESS_LENGTH | |
4349 | mov r1, #0 /* not used in routine */ | |
4350 | ldr r0, =MAC_ADDRESS_MIB | |
4351 | bl NVRAM_XFER | |
4352 | ldmia sp!, {lr} | |
4353 | bx lr | |
4354 | .endfunc | |
4355 | .ltorg | |
4356 | .func Delay9, DELAY9 | |
4357 | DELAY9: | |
4358 | adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */ | |
4d791aad | 4359 | DELAYLOOP: |
1da177e4 LT |
4360 | beq DELAY9_done |
4361 | subs r0, r0, #1 | |
4362 | b DELAYLOOP | |
4d791aad | 4363 | DELAY9_done: |
1da177e4 | 4364 | bx lr |
4d791aad | 4365 | .endfunc |
1da177e4 LT |
4366 | |
4367 | .func SP_Init, SP_INIT | |
4368 | SP_INIT: | |
4369 | mov r1, #SP_SWRST | |
4370 | ldr r0, =SP_BASE | |
4371 | str r1, [r0, #SP_CR] /* reset the SPI */ | |
4372 | mov r1, #0 | |
4373 | str r1, [r0, #SP_CR] /* release SPI from reset state */ | |
4374 | mov r1, #SP_SPIEN | |
4375 | str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/ | |
4376 | str r1, [r0, #SP_CR] /* enable the SPI */ | |
4377 | ||
4378 | /* My guess would be this turns on the SPI clock */ | |
4379 | ldr r3, =SPI_CGEN_BASE | |
4380 | ldr r1, [r3, #28] | |
4381 | orr r1, r1, #0x2000 | |
4382 | str r1, [r3, #28] | |
4383 | ||
4384 | ldr r1, =0x2000c01 | |
4385 | str r1, [r0, #SP_CSR0] | |
4386 | ldr r1, =0x2000201 | |
4387 | str r1, [r0, #SP_CSR1] | |
4388 | str r1, [r0, #SP_CSR2] | |
4389 | str r1, [r0, #SP_CSR3] | |
4390 | ldr r1, [r0, #SP_SR] | |
4391 | ldr r0, [r0, #SP_RDR] | |
4392 | bx lr | |
4393 | .endfunc | |
4d791aad | 4394 | .func NVRAM_Init, NVRAM_INIT |
1da177e4 LT |
4395 | NVRAM_INIT: |
4396 | ldr r1, =SP_BASE | |
4397 | ldr r0, [r1, #SP_RDR] | |
4398 | mov r0, #NVRAM_CMD_RDSR | |
4399 | str r0, [r1, #SP_TDR] | |
4d791aad | 4400 | SP_loop1: |
1da177e4 LT |
4401 | ldr r0, [r1, #SP_SR] |
4402 | tst r0, #SP_TDRE | |
4403 | beq SP_loop1 | |
4404 | ||
4405 | mov r0, #SPI_8CLOCKS | |
4d791aad CP |
4406 | str r0, [r1, #SP_TDR] |
4407 | SP_loop2: | |
1da177e4 LT |
4408 | ldr r0, [r1, #SP_SR] |
4409 | tst r0, #SP_TDRE | |
4410 | beq SP_loop2 | |
4411 | ||
4412 | ldr r0, [r1, #SP_RDR] | |
4d791aad | 4413 | SP_loop3: |
1da177e4 LT |
4414 | ldr r0, [r1, #SP_SR] |
4415 | tst r0, #SP_RDRF | |
4416 | beq SP_loop3 | |
4417 | ||
4418 | ldr r0, [r1, #SP_RDR] | |
4419 | and r0, r0, #255 | |
4420 | bx lr | |
4421 | .endfunc | |
4d791aad | 4422 | |
1da177e4 LT |
4423 | .func NVRAM_Xfer, NVRAM_XFER |
4424 | /* r0 = dest address */ | |
4425 | /* r1 = not used */ | |
4426 | /* r2 = src address within NVRAM */ | |
4427 | /* r3 = length */ | |
4428 | NVRAM_XFER: | |
4429 | stmdb sp!, {r4, r5, lr} | |
4430 | mov r5, r0 /* save r0 (dest address) */ | |
4431 | mov r4, r3 /* save r3 (length) */ | |
4432 | mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */ | |
4433 | and r0, r0, #8 | |
4d791aad | 4434 | add r0, r0, #NVRAM_CMD_READ |
1da177e4 LT |
4435 | ldr r1, =NVRAM_SCRATCH |
4436 | strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */ | |
4437 | strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */ | |
4d791aad | 4438 | _local1: |
1da177e4 LT |
4439 | bl NVRAM_INIT |
4440 | tst r0, #NVRAM_SR_RDY | |
4441 | bne _local1 | |
4442 | mov r0, #20 | |
4443 | bl DELAY9 | |
4444 | mov r2, r4 /* length */ | |
4445 | mov r1, r5 /* dest address */ | |
4446 | mov r0, #2 /* bytes to transfer in command */ | |
4447 | bl NVRAM_XFER2 | |
4448 | ldmia sp!, {r4, r5, lr} | |
4449 | bx lr | |
4450 | .endfunc | |
4451 | ||
4452 | .func NVRAM_Xfer2, NVRAM_XFER2 | |
4453 | NVRAM_XFER2: | |
4454 | stmdb sp!, {r4, r5, r6, lr} | |
4455 | ldr r4, =SP_BASE | |
4456 | mov r3, #0 | |
4457 | cmp r0, #0 | |
4458 | bls _local2 | |
4459 | ldr r5, =NVRAM_SCRATCH | |
4d791aad | 4460 | _local4: |
1da177e4 LT |
4461 | ldrb r6, [r5, r3] |
4462 | str r6, [r4, #SP_TDR] | |
4463 | _local3: | |
4464 | ldr r6, [r4, #SP_SR] | |
4465 | tst r6, #SP_TDRE | |
4466 | beq _local3 | |
4467 | add r3, r3, #1 | |
4468 | cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */ | |
4469 | blo _local4 | |
4470 | _local2: | |
4471 | mov r3, #SPI_8CLOCKS | |
4472 | str r3, [r4, #SP_TDR] | |
4473 | ldr r0, [r4, #SP_RDR] | |
4d791aad | 4474 | _local5: |
1da177e4 LT |
4475 | ldr r0, [r4, #SP_SR] |
4476 | tst r0, #SP_RDRF | |
4477 | beq _local5 | |
4478 | 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 */ | |
4479 | mov r0, #0 | |
4480 | cmp r2, #0 /* r2 is # of bytes to copy in */ | |
4481 | bls _local6 | |
4d791aad | 4482 | _local7: |
1da177e4 LT |
4483 | ldr r5, [r4, #SP_SR] |
4484 | tst r5, #SP_TDRE | |
4485 | beq _local7 | |
4486 | str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */ | |
4d791aad | 4487 | _local8: |
1da177e4 LT |
4488 | ldr r5, [r4, #SP_SR] |
4489 | tst r5, #SP_RDRF | |
4490 | beq _local8 | |
4491 | ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */ | |
4492 | strb r5, [r1], #1 /* postindexed */ | |
4493 | add r0, r0, #1 | |
4494 | cmp r0, r2 | |
4495 | blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */ | |
4496 | _local6: | |
4497 | mov r0, #200 | |
4498 | bl DELAY9 | |
4499 | ldmia sp!, {r4, r5, r6, lr} | |
4500 | bx lr | |
4501 | #endif |