1 /*** -*- linux-c -*- **********************************************************
3 Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
5 Copyright 2000-2001 ATMEL Corporation.
6 Copyright 2003-2004 Simon Kelley.
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,
11 and the Linux PCMCIA package, (C) David Hinds and the Linux wireless
12 extensions, (C) Jean Tourrilhes.
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.
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.
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.
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
34 For all queries about this code, please contact the current author,
35 Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
37 Credit is due to HP UK and Cambridge Online Systems Ltd for supplying
38 hardware used during development of this driver.
40 ******************************************************************************/
42 #include <linux/init.h>
44 #include <linux/kernel.h>
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/byteorder.h>
52 #include <asm/system.h>
53 #include <asm/uaccess.h>
54 #include <linux/module.h>
55 #include <linux/netdevice.h>
56 #include <linux/etherdevice.h>
57 #include <linux/skbuff.h>
58 #include <linux/if_arp.h>
59 #include <linux/ioport.h>
60 #include <linux/fcntl.h>
61 #include <linux/delay.h>
62 #include <linux/wireless.h>
63 #include <net/iw_handler.h>
64 #include <linux/crc32.h>
65 #include <linux/proc_fs.h>
66 #include <linux/device.h>
67 #include <linux/moduleparam.h>
68 #include <linux/firmware.h>
69 #include <linux/jiffies.h>
70 #include <linux/ieee80211.h>
73 #define DRIVER_MAJOR 0
74 #define DRIVER_MINOR 98
76 MODULE_AUTHOR("Simon Kelley");
77 MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
78 MODULE_LICENSE("GPL");
79 MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards");
81 /* The name of the firmware file to be loaded
82 over-rides any automatic selection */
83 static char *firmware = NULL;
84 module_param(firmware, charp, 0);
86 /* table of firmware file names */
90 const char *fw_file_ext;
92 { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" },
93 { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" },
94 { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" },
95 { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" },
96 { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" },
97 { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" },
98 { ATMEL_FW_TYPE_504A_2958,"atmel_at76c504a_2958","bin" },
99 { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" },
100 { ATMEL_FW_TYPE_NONE, NULL, NULL }
103 #define MAX_SSID_LENGTH 32
104 #define MGMT_JIFFIES (256 * HZ / 100)
106 #define MAX_BSS_ENTRIES 64
109 #define GCR 0x00 // (SIR0) General Configuration Register
110 #define BSR 0x02 // (SIR1) Bank Switching Select Register
113 #define MR1 0x12 // Mirror Register 1
114 #define MR2 0x14 // Mirror Register 2
115 #define MR3 0x16 // Mirror Register 3
116 #define MR4 0x18 // Mirror Register 4
122 // Constants for the GCR register.
124 #define GCR_REMAP 0x0400 // Remap internal SRAM to 0
125 #define GCR_SWRES 0x0080 // BIU reset (ARM and PAI are NOT reset)
126 #define GCR_CORES 0x0060 // Core Reset (ARM and PAI are reset)
127 #define GCR_ENINT 0x0002 // Enable Interrupts
128 #define GCR_ACKINT 0x0008 // Acknowledge Interrupts
130 #define BSS_SRAM 0x0200 // AMBA module selection --> SRAM
131 #define BSS_IRAM 0x0100 // AMBA module selection --> IRAM
133 // Constants for the MR registers.
135 #define MAC_INIT_COMPLETE 0x0001 // MAC init has been completed
136 #define MAC_BOOT_COMPLETE 0x0010 // MAC boot has been completed
137 #define MAC_INIT_OK 0x0002 // MAC boot has been completed
139 #define MIB_MAX_DATA_BYTES 212
140 #define MIB_HEADER_SIZE 4 /* first four fields */
147 u8 data[MIB_MAX_DATA_BYTES];
165 #define RX_DESC_FLAG_VALID 0x80
166 #define RX_DESC_FLAG_CONSUMED 0x40
167 #define RX_DESC_FLAG_IDLE 0x00
169 #define RX_STATUS_SUCCESS 0x00
171 #define RX_DESC_MSDU_POS_OFFSET 4
172 #define RX_DESC_MSDU_SIZE_OFFSET 6
173 #define RX_DESC_FLAGS_OFFSET 8
174 #define RX_DESC_STATUS_OFFSET 9
175 #define RX_DESC_RSSI_OFFSET 11
176 #define RX_DESC_LINK_QUALITY_OFFSET 12
177 #define RX_DESC_PREAMBLE_TYPE_OFFSET 13
178 #define RX_DESC_DURATION_OFFSET 14
179 #define RX_DESC_RX_TIME_OFFSET 16
202 #define TX_DESC_NEXT_OFFSET 0
203 #define TX_DESC_POS_OFFSET 4
204 #define TX_DESC_SIZE_OFFSET 6
205 #define TX_DESC_FLAGS_OFFSET 8
206 #define TX_DESC_STATUS_OFFSET 9
207 #define TX_DESC_RETRY_OFFSET 10
208 #define TX_DESC_RATE_OFFSET 11
209 #define TX_DESC_KEY_INDEX_OFFSET 12
210 #define TX_DESC_CIPHER_TYPE_OFFSET 13
211 #define TX_DESC_CIPHER_LENGTH_OFFSET 14
212 #define TX_DESC_PACKET_TYPE_OFFSET 17
213 #define TX_DESC_HOST_LENGTH_OFFSET 18
215 ///////////////////////////////////////////////////////
216 // Host-MAC interface
217 ///////////////////////////////////////////////////////
219 #define TX_STATUS_SUCCESS 0x00
221 #define TX_FIRM_OWN 0x80
224 #define TX_ERROR 0x01
226 #define TX_PACKET_TYPE_DATA 0x01
227 #define TX_PACKET_TYPE_MGMT 0x02
229 #define ISR_EMPTY 0x00 // no bits set in ISR
230 #define ISR_TxCOMPLETE 0x01 // packet transmitted
231 #define ISR_RxCOMPLETE 0x02 // packet received
232 #define ISR_RxFRAMELOST 0x04 // Rx Frame lost
233 #define ISR_FATAL_ERROR 0x08 // Fatal error
234 #define ISR_COMMAND_COMPLETE 0x10 // command completed
235 #define ISR_OUT_OF_RANGE 0x20 // command completed
236 #define ISR_IBSS_MERGE 0x40 // (4.1.2.30): IBSS merge
237 #define ISR_GENERIC_IRQ 0x80
239 #define Local_Mib_Type 0x01
240 #define Mac_Address_Mib_Type 0x02
241 #define Mac_Mib_Type 0x03
242 #define Statistics_Mib_Type 0x04
243 #define Mac_Mgmt_Mib_Type 0x05
244 #define Mac_Wep_Mib_Type 0x06
245 #define Phy_Mib_Type 0x07
246 #define Multi_Domain_MIB 0x08
248 #define MAC_MGMT_MIB_CUR_BSSID_POS 14
249 #define MAC_MIB_FRAG_THRESHOLD_POS 8
250 #define MAC_MIB_RTS_THRESHOLD_POS 10
251 #define MAC_MIB_SHORT_RETRY_POS 16
252 #define MAC_MIB_LONG_RETRY_POS 17
253 #define MAC_MIB_SHORT_RETRY_LIMIT_POS 16
254 #define MAC_MGMT_MIB_BEACON_PER_POS 0
255 #define MAC_MGMT_MIB_STATION_ID_POS 6
256 #define MAC_MGMT_MIB_CUR_PRIVACY_POS 11
257 #define MAC_MGMT_MIB_CUR_BSSID_POS 14
258 #define MAC_MGMT_MIB_PS_MODE_POS 53
259 #define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54
260 #define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56
261 #define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57
262 #define PHY_MIB_CHANNEL_POS 14
263 #define PHY_MIB_RATE_SET_POS 20
264 #define PHY_MIB_REG_DOMAIN_POS 26
265 #define LOCAL_MIB_AUTO_TX_RATE_POS 3
266 #define LOCAL_MIB_SSID_SIZE 5
267 #define LOCAL_MIB_TX_PROMISCUOUS_POS 6
268 #define LOCAL_MIB_TX_MGMT_RATE_POS 7
269 #define LOCAL_MIB_TX_CONTROL_RATE_POS 8
270 #define LOCAL_MIB_PREAMBLE_TYPE 9
271 #define MAC_ADDR_MIB_MAC_ADDR_POS 0
273 #define CMD_Set_MIB_Vars 0x01
274 #define CMD_Get_MIB_Vars 0x02
275 #define CMD_Scan 0x03
276 #define CMD_Join 0x04
277 #define CMD_Start 0x05
278 #define CMD_EnableRadio 0x06
279 #define CMD_DisableRadio 0x07
280 #define CMD_SiteSurvey 0x0B
282 #define CMD_STATUS_IDLE 0x00
283 #define CMD_STATUS_COMPLETE 0x01
284 #define CMD_STATUS_UNKNOWN 0x02
285 #define CMD_STATUS_INVALID_PARAMETER 0x03
286 #define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
287 #define CMD_STATUS_TIME_OUT 0x07
288 #define CMD_STATUS_IN_PROGRESS 0x08
289 #define CMD_STATUS_REJECTED_RADIO_OFF 0x09
290 #define CMD_STATUS_HOST_ERROR 0xFF
291 #define CMD_STATUS_BUSY 0xFE
293 #define CMD_BLOCK_COMMAND_OFFSET 0
294 #define CMD_BLOCK_STATUS_OFFSET 1
295 #define CMD_BLOCK_PARAMETERS_OFFSET 4
297 #define SCAN_OPTIONS_SITE_SURVEY 0x80
299 #define MGMT_FRAME_BODY_OFFSET 24
300 #define MAX_AUTHENTICATION_RETRIES 3
301 #define MAX_ASSOCIATION_RETRIES 3
303 #define AUTHENTICATION_RESPONSE_TIME_OUT 1000
305 #define MAX_WIRELESS_BODY 2316 /* mtu is 2312, CRC is 4 */
306 #define LOOP_RETRY_LIMIT 500000
308 #define ACTIVE_MODE 1
311 #define MAX_ENCRYPTION_KEYS 4
312 #define MAX_ENCRYPTION_KEY_SIZE 40
314 ///////////////////////////////////////////////////////////////////////////
315 // 802.11 related definitions
316 ///////////////////////////////////////////////////////////////////////////
319 // Regulatory Domains
322 #define REG_DOMAIN_FCC 0x10 //Channels 1-11 USA
323 #define REG_DOMAIN_DOC 0x20 //Channel 1-11 Canada
324 #define REG_DOMAIN_ETSI 0x30 //Channel 1-13 Europe (ex Spain/France)
325 #define REG_DOMAIN_SPAIN 0x31 //Channel 10-11 Spain
326 #define REG_DOMAIN_FRANCE 0x32 //Channel 10-13 France
327 #define REG_DOMAIN_MKK 0x40 //Channel 14 Japan
328 #define REG_DOMAIN_MKK1 0x41 //Channel 1-14 Japan(MKK1)
329 #define REG_DOMAIN_ISRAEL 0x50 //Channel 3-9 ISRAEL
331 #define BSS_TYPE_AD_HOC 1
332 #define BSS_TYPE_INFRASTRUCTURE 2
334 #define SCAN_TYPE_ACTIVE 0
335 #define SCAN_TYPE_PASSIVE 1
337 #define LONG_PREAMBLE 0
338 #define SHORT_PREAMBLE 1
339 #define AUTO_PREAMBLE 2
341 #define DATA_FRAME_WS_HEADER_SIZE 30
343 /* promiscuous mode control */
344 #define PROM_MODE_OFF 0x0
345 #define PROM_MODE_UNKNOWN 0x1
346 #define PROM_MODE_CRC_FAILED 0x2
347 #define PROM_MODE_DUPLICATED 0x4
348 #define PROM_MODE_MGMT 0x8
349 #define PROM_MODE_CTRL 0x10
350 #define PROM_MODE_BAD_PROTOCOL 0x20
352 #define IFACE_INT_STATUS_OFFSET 0
353 #define IFACE_INT_MASK_OFFSET 1
354 #define IFACE_LOCKOUT_HOST_OFFSET 2
355 #define IFACE_LOCKOUT_MAC_OFFSET 3
356 #define IFACE_FUNC_CTRL_OFFSET 28
357 #define IFACE_MAC_STAT_OFFSET 30
358 #define IFACE_GENERIC_INT_TYPE_OFFSET 32
360 #define CIPHER_SUITE_NONE 0
361 #define CIPHER_SUITE_WEP_64 1
362 #define CIPHER_SUITE_TKIP 2
363 #define CIPHER_SUITE_AES 3
364 #define CIPHER_SUITE_CCX 4
365 #define CIPHER_SUITE_WEP_128 5
368 // IFACE MACROS & definitions
374 #define FUNC_CTRL_TxENABLE 0x10
375 #define FUNC_CTRL_RxENABLE 0x20
376 #define FUNC_CTRL_INIT_COMPLETE 0x01
378 /* A stub firmware image which reads the MAC address from NVRAM on the card.
379 For copyright information and source see the end of this file. */
380 static u8 mac_reader[] = {
381 0x06,0x00,0x00,0xea,0x04,0x00,0x00,0xea,0x03,0x00,0x00,0xea,0x02,0x00,0x00,0xea,
382 0x01,0x00,0x00,0xea,0x00,0x00,0x00,0xea,0xff,0xff,0xff,0xea,0xfe,0xff,0xff,0xea,
383 0xd3,0x00,0xa0,0xe3,0x00,0xf0,0x21,0xe1,0x0e,0x04,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
384 0x81,0x11,0xa0,0xe1,0x00,0x10,0x81,0xe3,0x00,0x10,0x80,0xe5,0x1c,0x10,0x90,0xe5,
385 0x10,0x10,0xc1,0xe3,0x1c,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,0x08,0x10,0x80,0xe5,
386 0x02,0x03,0xa0,0xe3,0x00,0x10,0xa0,0xe3,0xb0,0x10,0xc0,0xe1,0xb4,0x10,0xc0,0xe1,
387 0xb8,0x10,0xc0,0xe1,0xbc,0x10,0xc0,0xe1,0x56,0xdc,0xa0,0xe3,0x21,0x00,0x00,0xeb,
388 0x0a,0x00,0xa0,0xe3,0x1a,0x00,0x00,0xeb,0x10,0x00,0x00,0xeb,0x07,0x00,0x00,0xeb,
389 0x02,0x03,0xa0,0xe3,0x02,0x14,0xa0,0xe3,0xb4,0x10,0xc0,0xe1,0x4c,0x10,0x9f,0xe5,
390 0xbc,0x10,0xc0,0xe1,0x10,0x10,0xa0,0xe3,0xb8,0x10,0xc0,0xe1,0xfe,0xff,0xff,0xea,
391 0x00,0x40,0x2d,0xe9,0x00,0x20,0xa0,0xe3,0x02,0x3c,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
392 0x28,0x00,0x9f,0xe5,0x37,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
393 0x00,0x40,0x2d,0xe9,0x12,0x2e,0xa0,0xe3,0x06,0x30,0xa0,0xe3,0x00,0x10,0xa0,0xe3,
394 0x02,0x04,0xa0,0xe3,0x2f,0x00,0x00,0xeb,0x00,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,
395 0x00,0x02,0x00,0x02,0x80,0x01,0x90,0xe0,0x01,0x00,0x00,0x0a,0x01,0x00,0x50,0xe2,
396 0xfc,0xff,0xff,0xea,0x1e,0xff,0x2f,0xe1,0x80,0x10,0xa0,0xe3,0xf3,0x06,0xa0,0xe3,
397 0x00,0x10,0x80,0xe5,0x00,0x10,0xa0,0xe3,0x00,0x10,0x80,0xe5,0x01,0x10,0xa0,0xe3,
398 0x04,0x10,0x80,0xe5,0x00,0x10,0x80,0xe5,0x0e,0x34,0xa0,0xe3,0x1c,0x10,0x93,0xe5,
399 0x02,0x1a,0x81,0xe3,0x1c,0x10,0x83,0xe5,0x58,0x11,0x9f,0xe5,0x30,0x10,0x80,0xe5,
400 0x54,0x11,0x9f,0xe5,0x34,0x10,0x80,0xe5,0x38,0x10,0x80,0xe5,0x3c,0x10,0x80,0xe5,
401 0x10,0x10,0x90,0xe5,0x08,0x00,0x90,0xe5,0x1e,0xff,0x2f,0xe1,0xf3,0x16,0xa0,0xe3,
402 0x08,0x00,0x91,0xe5,0x05,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,0x10,0x00,0x91,0xe5,
403 0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0xff,0x00,0xa0,0xe3,0x0c,0x00,0x81,0xe5,
404 0x10,0x00,0x91,0xe5,0x02,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
405 0x10,0x00,0x91,0xe5,0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x91,0xe5,
406 0xff,0x00,0x00,0xe2,0x1e,0xff,0x2f,0xe1,0x30,0x40,0x2d,0xe9,0x00,0x50,0xa0,0xe1,
407 0x03,0x40,0xa0,0xe1,0xa2,0x02,0xa0,0xe1,0x08,0x00,0x00,0xe2,0x03,0x00,0x80,0xe2,
408 0xd8,0x10,0x9f,0xe5,0x00,0x00,0xc1,0xe5,0x01,0x20,0xc1,0xe5,0xe2,0xff,0xff,0xeb,
409 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x1a,0x14,0x00,0xa0,0xe3,0xc4,0xff,0xff,0xeb,
410 0x04,0x20,0xa0,0xe1,0x05,0x10,0xa0,0xe1,0x02,0x00,0xa0,0xe3,0x01,0x00,0x00,0xeb,
411 0x30,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x70,0x40,0x2d,0xe9,0xf3,0x46,0xa0,0xe3,
412 0x00,0x30,0xa0,0xe3,0x00,0x00,0x50,0xe3,0x08,0x00,0x00,0x9a,0x8c,0x50,0x9f,0xe5,
413 0x03,0x60,0xd5,0xe7,0x0c,0x60,0x84,0xe5,0x10,0x60,0x94,0xe5,0x02,0x00,0x16,0xe3,
414 0xfc,0xff,0xff,0x0a,0x01,0x30,0x83,0xe2,0x00,0x00,0x53,0xe1,0xf7,0xff,0xff,0x3a,
415 0xff,0x30,0xa0,0xe3,0x0c,0x30,0x84,0xe5,0x08,0x00,0x94,0xe5,0x10,0x00,0x94,0xe5,
416 0x01,0x00,0x10,0xe3,0xfc,0xff,0xff,0x0a,0x08,0x00,0x94,0xe5,0x00,0x00,0xa0,0xe3,
417 0x00,0x00,0x52,0xe3,0x0b,0x00,0x00,0x9a,0x10,0x50,0x94,0xe5,0x02,0x00,0x15,0xe3,
418 0xfc,0xff,0xff,0x0a,0x0c,0x30,0x84,0xe5,0x10,0x50,0x94,0xe5,0x01,0x00,0x15,0xe3,
419 0xfc,0xff,0xff,0x0a,0x08,0x50,0x94,0xe5,0x01,0x50,0xc1,0xe4,0x01,0x00,0x80,0xe2,
420 0x02,0x00,0x50,0xe1,0xf3,0xff,0xff,0x3a,0xc8,0x00,0xa0,0xe3,0x98,0xff,0xff,0xeb,
421 0x70,0x40,0xbd,0xe8,0x1e,0xff,0x2f,0xe1,0x01,0x0c,0x00,0x02,0x01,0x02,0x00,0x02,
425 struct atmel_private {
426 void *card; /* Bus dependent stucture varies for PCcard */
427 int (*present_callback)(void *); /* And callback which uses it */
428 char firmware_id[32];
429 AtmelFWType firmware_type;
432 struct timer_list management_timer;
433 struct net_device *dev;
434 struct device *sys_dev;
435 struct iw_statistics wstats;
436 spinlock_t irqlock, timerlock; // spinlocks
437 enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type;
439 CARD_TYPE_PARALLEL_FLASH,
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 */
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;
450 u16 frag_seq, frag_len, frag_no;
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];
456 int wep_key_len[MAX_ENCRYPTION_KEYS];
457 int use_wpa, radio_on_broken; /* firmware dependent stuff. */
460 struct host_info_struct {
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;
485 u16 generic_IRQ_type;
490 STATION_STATE_SCANNING,
491 STATION_STATE_JOINNING,
492 STATION_STATE_AUTHENTICATING,
493 STATION_STATE_ASSOCIATING,
495 STATION_STATE_REASSOCIATING,
497 STATION_STATE_MGMT_ERROR
500 int operating_mode, power_mode;
502 int beacons_this_sec;
504 int reg_domain, config_reg_domain;
509 int long_retry, short_retry;
511 int default_beacon_period, beacon_period, listen_interval;
512 int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum;
513 int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt;
516 SITE_SURVEY_IN_PROGRESS,
517 SITE_SURVEY_COMPLETED
519 unsigned long last_survey;
521 int station_was_associated, station_is_associated;
533 u8 SSID[MAX_SSID_LENGTH];
534 } BSSinfo[MAX_BSS_ENTRIES];
535 int BSS_list_entries, current_BSS;
536 int connect_to_any_BSS;
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];
544 static u8 atmel_basic_rates[4] = {0x82,0x84,0x0b,0x16};
546 static const struct {
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" },
554 { REG_DOMAIN_FRANCE, 10, 13, "France" },
555 { REG_DOMAIN_MKK, 14, 14, "MKK" },
556 { REG_DOMAIN_MKK1, 1, 14, "MKK1" },
557 { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} };
559 static void build_wpa_mib(struct atmel_private *priv);
560 static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
561 static void atmel_copy_to_card(struct net_device *dev, u16 dest,
562 const unsigned char *src, u16 len);
563 static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
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);
571 static void atmel_management_frame(struct atmel_private *priv,
572 struct ieee80211_hdr *header,
573 u16 frame_len, u8 rssi);
574 static void atmel_management_timer(u_long a);
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 *header,
581 u8 *body, int body_len);
583 static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index);
584 static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index,
586 static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
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);
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);
597 static int reset_atmel_card(struct net_device *dev);
598 static void atmel_enter_state(struct atmel_private *priv, int new_state);
599 int atmel_open (struct net_device *dev);
601 static inline u16 atmel_hi(struct atmel_private *priv, u16 offset)
603 return priv->host_info_base + offset;
606 static inline u16 atmel_co(struct atmel_private *priv, u16 offset)
608 return priv->host_info.command_pos + offset;
611 static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc)
613 return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset;
616 static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc)
618 return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset;
621 static inline u8 atmel_read8(struct net_device *dev, u16 offset)
623 return inb(dev->base_addr + offset);
626 static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data)
628 outb(data, dev->base_addr + offset);
631 static inline u16 atmel_read16(struct net_device *dev, u16 offset)
633 return inw(dev->base_addr + offset);
636 static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data)
638 outw(data, dev->base_addr + offset);
641 static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos)
643 atmel_writeAR(priv->dev, pos);
644 return atmel_read8(priv->dev, DR);
647 static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data)
649 atmel_writeAR(priv->dev, pos);
650 atmel_write8(priv->dev, DR, data);
653 static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos)
655 atmel_writeAR(priv->dev, pos);
656 return atmel_read16(priv->dev, DR);
659 static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data)
661 atmel_writeAR(priv->dev, pos);
662 atmel_write16(priv->dev, DR, data);
665 static const struct iw_handler_def atmel_handler_def;
667 static void tx_done_irq(struct atmel_private *priv)
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;
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));
679 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0);
681 priv->tx_free_mem += msdu_size;
682 priv->tx_desc_free++;
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;
687 priv->tx_buff_head += msdu_size;
689 if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1))
690 priv->tx_desc_head++ ;
692 priv->tx_desc_head = 0;
694 if (type == TX_PACKET_TYPE_DATA) {
695 if (status == TX_STATUS_SUCCESS)
696 priv->dev->stats.tx_packets++;
698 priv->dev->stats.tx_errors++;
699 netif_wake_queue(priv->dev);
704 static u16 find_tx_buff(struct atmel_private *priv, u16 len)
706 u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail;
708 if (priv->tx_desc_free == 3 || priv->tx_free_mem < len)
711 if (bottom_free >= len)
712 return priv->host_info.tx_buff_pos + priv->tx_buff_tail;
714 if (priv->tx_free_mem - bottom_free >= len) {
715 priv->tx_buff_tail = 0;
716 return priv->host_info.tx_buff_pos;
722 static void tx_update_descriptor(struct atmel_private *priv, int is_bcast,
723 u16 len, u16 buff, u8 type)
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);
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);
733 int cipher_type, cipher_length;
735 cipher_type = priv->group_cipher_suite;
736 if (cipher_type == CIPHER_SUITE_WEP_64 ||
737 cipher_type == CIPHER_SUITE_WEP_128)
739 else if (cipher_type == CIPHER_SUITE_TKIP)
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;
746 cipher_type = CIPHER_SUITE_NONE;
750 cipher_type = priv->pairwise_cipher_suite;
751 if (cipher_type == CIPHER_SUITE_WEP_64 ||
752 cipher_type == CIPHER_SUITE_WEP_128)
754 else if (cipher_type == CIPHER_SUITE_TKIP)
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;
761 cipher_type = CIPHER_SUITE_NONE;
766 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail),
768 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail),
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;
776 if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1))
777 priv->tx_desc_tail++;
779 priv->tx_desc_tail = 0;
780 priv->tx_desc_free--;
781 priv->tx_free_mem -= len;
784 static int start_tx(struct sk_buff *skb, struct net_device *dev)
786 static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
787 struct atmel_private *priv = netdev_priv(dev);
788 struct ieee80211_hdr header;
790 u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
792 if (priv->card && priv->present_callback &&
793 !(*priv->present_callback)(priv->card)) {
794 dev->stats.tx_errors++;
799 if (priv->station_state != STATION_STATE_READY) {
800 dev->stats.tx_errors++;
805 /* first ensure the timer func cannot run */
806 spin_lock_bh(&priv->timerlock);
807 /* then stop the hardware ISR */
808 spin_lock_irqsave(&priv->irqlock, flags);
809 /* nb doing the above in the opposite order will deadlock */
811 /* The Wireless Header is 30 bytes. In the Ethernet packet we "cut" the
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) */
816 if (!(buff = find_tx_buff(priv, len + 18))) {
817 dev->stats.tx_dropped++;
818 spin_unlock_irqrestore(&priv->irqlock, flags);
819 spin_unlock_bh(&priv->timerlock);
820 netif_stop_queue(dev);
824 frame_ctl = IEEE80211_FTYPE_DATA;
825 header.duration_id = 0;
828 frame_ctl |= IEEE80211_FCTL_PROTECTED;
829 if (priv->operating_mode == IW_MODE_ADHOC) {
830 skb_copy_from_linear_data(skb, &header.addr1, 6);
831 memcpy(&header.addr2, dev->dev_addr, 6);
832 memcpy(&header.addr3, priv->BSSID, 6);
834 frame_ctl |= IEEE80211_FCTL_TODS;
835 memcpy(&header.addr1, priv->CurrentBSSID, 6);
836 memcpy(&header.addr2, dev->dev_addr, 6);
837 skb_copy_from_linear_data(skb, &header.addr3, 6);
841 memcpy(&header.addr4, SNAP_RFC1024, 6);
843 header.frame_control = 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;
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 dev->stats.tx_bytes += len;
855 spin_unlock_irqrestore(&priv->irqlock, flags);
856 spin_unlock_bh(&priv->timerlock);
862 static void atmel_transmit_management_frame(struct atmel_private *priv,
863 struct ieee80211_hdr *header,
864 u8 *body, int body_len)
867 int len = MGMT_FRAME_BODY_OFFSET + body_len;
869 if (!(buff = find_tx_buff(priv, len)))
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);
878 static void fast_rx_path(struct atmel_private *priv,
879 struct ieee80211_hdr *header,
880 u16 msdu_size, u16 rx_packet_loc, u32 crc)
882 /* fast path: unfragmented packet copy directly into skbuf */
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);
891 if (priv->do_rx_crc) {
892 crc = crc32_le(crc, mac4, 6);
896 if (!(skb = dev_alloc_skb(msdu_size + 14))) {
897 priv->dev->stats.rx_dropped++;
902 skbp = skb_put(skb, msdu_size + 12);
903 atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size);
905 if (priv->do_rx_crc) {
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->dev->stats.rx_crc_errors++;
916 memcpy(skbp, header->addr1, 6); /* destination address */
917 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
918 memcpy(&skbp[6], header->addr3, 6);
920 memcpy(&skbp[6], header->addr2, 6); /* source address */
922 skb->protocol = eth_type_trans(skb, priv->dev);
923 skb->ip_summed = CHECKSUM_NONE;
925 priv->dev->stats.rx_bytes += 12 + msdu_size;
926 priv->dev->stats.rx_packets++;
929 /* Test to see if the packet in card memory at packet_loc has a valid CRC
930 It doesn't matter that this is slow: it is only used to proble the first few
932 static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size)
934 int i = msdu_size - 4;
935 u32 netcrc, crc = 0xffffffff;
940 atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4);
942 atmel_writeAR(priv->dev, packet_loc);
944 u8 octet = atmel_read8(priv->dev, DR);
945 crc = crc32_le(crc, &octet, 1);
948 return (crc ^ 0xffffffff) == netcrc;
951 static void frag_rx_path(struct atmel_private *priv,
952 struct ieee80211_hdr *header,
953 u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
954 u8 frag_no, int more_frags)
960 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
961 memcpy(source, header->addr3, 6);
963 memcpy(source, header->addr2, 6);
965 rx_packet_loc += 24; /* skip header */
970 if (frag_no == 0) { /* first fragment */
971 atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6);
976 crc = crc32_le(crc, mac4, 6);
978 priv->frag_seq = seq_no;
980 priv->frag_len = msdu_size;
981 memcpy(priv->frag_source, source, 6);
982 memcpy(&priv->rx_buf[6], source, 6);
983 memcpy(priv->rx_buf, header->addr1, 6);
985 atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
987 if (priv->do_rx_crc) {
989 crc = crc32_le(crc, &priv->rx_buf[12], msdu_size);
990 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
991 if ((crc ^ 0xffffffff) != netcrc) {
992 priv->dev->stats.rx_crc_errors++;
993 memset(priv->frag_source, 0xff, 6);
997 } else if (priv->frag_no == frag_no &&
998 priv->frag_seq == seq_no &&
999 memcmp(priv->frag_source, source, 6) == 0) {
1001 atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
1002 rx_packet_loc, msdu_size);
1003 if (priv->do_rx_crc) {
1006 &priv->rx_buf[12 + priv->frag_len],
1008 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
1009 if ((crc ^ 0xffffffff) != netcrc) {
1010 priv->dev->stats.rx_crc_errors++;
1011 memset(priv->frag_source, 0xff, 6);
1012 more_frags = 1; /* don't send broken assembly */
1016 priv->frag_len += msdu_size;
1019 if (!more_frags) { /* last one */
1020 memset(priv->frag_source, 0xff, 6);
1021 if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
1022 priv->dev->stats.rx_dropped++;
1024 skb_reserve(skb, 2);
1025 memcpy(skb_put(skb, priv->frag_len + 12),
1027 priv->frag_len + 12);
1028 skb->protocol = eth_type_trans(skb, priv->dev);
1029 skb->ip_summed = CHECKSUM_NONE;
1031 priv->dev->stats.rx_bytes += priv->frag_len + 12;
1032 priv->dev->stats.rx_packets++;
1036 priv->wstats.discard.fragment++;
1039 static void rx_done_irq(struct atmel_private *priv)
1042 struct ieee80211_hdr header;
1045 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID &&
1046 i < priv->host_info.rx_desc_count;
1049 u16 msdu_size, rx_packet_loc, frame_ctl, seq_control;
1050 u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head));
1051 u32 crc = 0xffffffff;
1053 if (status != RX_STATUS_SUCCESS) {
1054 if (status == 0xc1) /* determined by experiment */
1055 priv->wstats.discard.nwid++;
1057 priv->dev->stats.rx_errors++;
1061 msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head));
1062 rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head));
1064 if (msdu_size < 30) {
1065 priv->dev->stats.rx_errors++;
1069 /* Get header as far as end of seq_ctrl */
1070 atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24);
1071 frame_ctl = le16_to_cpu(header.frame_control);
1072 seq_control = le16_to_cpu(header.seq_ctrl);
1074 /* probe for CRC use here if needed once five packets have
1075 arrived with the same crc status, we assume we know what's
1076 happening and stop probing */
1077 if (priv->probe_crc) {
1078 if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) {
1079 priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size);
1081 priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24);
1083 if (priv->do_rx_crc) {
1084 if (priv->crc_ok_cnt++ > 5)
1085 priv->probe_crc = 0;
1087 if (priv->crc_ko_cnt++ > 5)
1088 priv->probe_crc = 0;
1092 /* don't CRC header when WEP in use */
1093 if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) {
1094 crc = crc32_le(0xffffffff, (unsigned char *)&header, 24);
1096 msdu_size -= 24; /* header */
1098 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
1099 int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS;
1100 u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG;
1101 u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4;
1103 if (!more_fragments && packet_fragment_no == 0) {
1104 fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc);
1106 frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc,
1107 packet_sequence_no, packet_fragment_no, more_fragments);
1111 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
1112 /* copy rest of packet into buffer */
1113 atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
1115 /* we use the same buffer for frag reassembly and control packets */
1116 memset(priv->frag_source, 0xff, 6);
1118 if (priv->do_rx_crc) {
1119 /* last 4 octets is crc */
1121 crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size);
1122 if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) {
1123 priv->dev->stats.rx_crc_errors++;
1128 atmel_management_frame(priv, &header, msdu_size,
1129 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head)));
1133 /* release descriptor */
1134 atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED);
1136 if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1))
1137 priv->rx_desc_head++;
1139 priv->rx_desc_head = 0;
1143 static irqreturn_t service_interrupt(int irq, void *dev_id)
1145 struct net_device *dev = (struct net_device *) dev_id;
1146 struct atmel_private *priv = netdev_priv(dev);
1149 static u8 irq_order[] = {
1155 ISR_COMMAND_COMPLETE,
1160 if (priv->card && priv->present_callback &&
1161 !(*priv->present_callback)(priv->card))
1164 /* In this state upper-level code assumes it can mess with
1165 the card unhampered by interrupts which may change register state.
1166 Note that even though the card shouldn't generate interrupts
1167 the inturrupt line may be shared. This allows card setup
1168 to go on without disabling interrupts for a long time. */
1169 if (priv->station_state == STATION_STATE_DOWN)
1172 atmel_clear_gcr(dev, GCR_ENINT); /* disable interrupts */
1175 if (!atmel_lock_mac(priv)) {
1176 /* failed to contact card */
1177 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1181 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1182 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
1185 atmel_set_gcr(dev, GCR_ENINT); /* enable interrupts */
1186 return i == -1 ? IRQ_NONE : IRQ_HANDLED;
1189 atmel_set_gcr(dev, GCR_ACKINT); /* acknowledge interrupt */
1191 for (i = 0; i < ARRAY_SIZE(irq_order); i++)
1192 if (isr & irq_order[i])
1195 if (!atmel_lock_mac(priv)) {
1196 /* failed to contact card */
1197 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1201 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1202 isr ^= irq_order[i];
1203 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr);
1204 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
1206 switch (irq_order[i]) {
1208 case ISR_OUT_OF_RANGE:
1209 if (priv->operating_mode == IW_MODE_INFRA &&
1210 priv->station_state == STATION_STATE_READY) {
1211 priv->station_is_associated = 0;
1212 atmel_scan(priv, 1);
1216 case ISR_RxFRAMELOST:
1217 priv->wstats.discard.misc++;
1219 case ISR_RxCOMPLETE:
1223 case ISR_TxCOMPLETE:
1227 case ISR_FATAL_ERROR:
1228 printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name);
1229 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
1232 case ISR_COMMAND_COMPLETE:
1233 atmel_command_irq(priv);
1236 case ISR_IBSS_MERGE:
1237 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
1238 priv->CurrentBSSID, 6);
1239 /* The WPA stuff cares about the current AP address */
1241 build_wpa_mib(priv);
1243 case ISR_GENERIC_IRQ:
1244 printk(KERN_INFO "%s: Generic_irq received.\n", dev->name);
1250 static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev)
1252 struct atmel_private *priv = netdev_priv(dev);
1254 /* update the link quality here in case we are seeing no beacons
1255 at all to drive the process */
1256 atmel_smooth_qual(priv);
1258 priv->wstats.status = priv->station_state;
1260 if (priv->operating_mode == IW_MODE_INFRA) {
1261 if (priv->station_state != STATION_STATE_READY) {
1262 priv->wstats.qual.qual = 0;
1263 priv->wstats.qual.level = 0;
1264 priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID
1265 | IW_QUAL_LEVEL_INVALID);
1267 priv->wstats.qual.noise = 0;
1268 priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1270 /* Quality levels cannot be determined in ad-hoc mode,
1271 because we can 'hear' more that one remote station. */
1272 priv->wstats.qual.qual = 0;
1273 priv->wstats.qual.level = 0;
1274 priv->wstats.qual.noise = 0;
1275 priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID
1276 | IW_QUAL_LEVEL_INVALID
1277 | IW_QUAL_NOISE_INVALID;
1278 priv->wstats.miss.beacon = 0;
1281 return &priv->wstats;
1284 static int atmel_change_mtu(struct net_device *dev, int new_mtu)
1286 if ((new_mtu < 68) || (new_mtu > 2312))
1292 static int atmel_set_mac_address(struct net_device *dev, void *p)
1294 struct sockaddr *addr = p;
1296 memcpy (dev->dev_addr, addr->sa_data, dev->addr_len);
1297 return atmel_open(dev);
1300 EXPORT_SYMBOL(atmel_open);
1302 int atmel_open(struct net_device *dev)
1304 struct atmel_private *priv = netdev_priv(dev);
1305 int i, channel, err;
1307 /* any scheduled timer is no longer needed and might screw things up.. */
1308 del_timer_sync(&priv->management_timer);
1310 /* Interrupts will not touch the card once in this state... */
1311 priv->station_state = STATION_STATE_DOWN;
1313 if (priv->new_SSID_size) {
1314 memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size);
1315 priv->SSID_size = priv->new_SSID_size;
1316 priv->new_SSID_size = 0;
1318 priv->BSS_list_entries = 0;
1320 priv->AuthenticationRequestRetryCnt = 0;
1321 priv->AssociationRequestRetryCnt = 0;
1322 priv->ReAssociationRequestRetryCnt = 0;
1323 priv->CurrentAuthentTransactionSeqNum = 0x0001;
1324 priv->ExpectedAuthentTransactionSeqNum = 0x0002;
1326 priv->site_survey_state = SITE_SURVEY_IDLE;
1327 priv->station_is_associated = 0;
1329 err = reset_atmel_card(dev);
1333 if (priv->config_reg_domain) {
1334 priv->reg_domain = priv->config_reg_domain;
1335 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain);
1337 priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS);
1338 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1339 if (priv->reg_domain == channel_table[i].reg_domain)
1341 if (i == ARRAY_SIZE(channel_table)) {
1342 priv->reg_domain = REG_DOMAIN_MKK1;
1343 printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name);
1347 if ((channel = atmel_validate_channel(priv, priv->channel)))
1348 priv->channel = channel;
1350 /* this moves station_state on.... */
1351 atmel_scan(priv, 1);
1353 atmel_set_gcr(priv->dev, GCR_ENINT); /* enable interrupts */
1357 static int atmel_close(struct net_device *dev)
1359 struct atmel_private *priv = netdev_priv(dev);
1361 /* Send event to userspace that we are disassociating */
1362 if (priv->station_state == STATION_STATE_READY) {
1363 union iwreq_data wrqu;
1365 wrqu.data.length = 0;
1366 wrqu.data.flags = 0;
1367 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1368 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1369 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1372 atmel_enter_state(priv, STATION_STATE_DOWN);
1374 if (priv->bus_type == BUS_TYPE_PCCARD)
1375 atmel_write16(dev, GCR, 0x0060);
1376 atmel_write16(dev, GCR, 0x0040);
1380 static int atmel_validate_channel(struct atmel_private *priv, int channel)
1382 /* check that channel is OK, if so return zero,
1383 else return suitable default channel */
1386 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1387 if (priv->reg_domain == channel_table[i].reg_domain) {
1388 if (channel >= channel_table[i].min &&
1389 channel <= channel_table[i].max)
1392 return channel_table[i].min;
1397 static int atmel_proc_output (char *buf, struct atmel_private *priv)
1403 p += sprintf(p, "Driver version:\t\t%d.%d\n",
1404 DRIVER_MAJOR, DRIVER_MINOR);
1406 if (priv->station_state != STATION_STATE_DOWN) {
1407 p += sprintf(p, "Firmware version:\t%d.%d build %d\n"
1408 "Firmware location:\t",
1409 priv->host_info.major_version,
1410 priv->host_info.minor_version,
1411 priv->host_info.build_version);
1413 if (priv->card_type != CARD_TYPE_EEPROM)
1414 p += sprintf(p, "on card\n");
1415 else if (priv->firmware)
1416 p += sprintf(p, "%s loaded by host\n",
1419 p += sprintf(p, "%s loaded by hotplug\n",
1422 switch (priv->card_type) {
1423 case CARD_TYPE_PARALLEL_FLASH: c = "Parallel flash"; break;
1424 case CARD_TYPE_SPI_FLASH: c = "SPI flash\n"; break;
1425 case CARD_TYPE_EEPROM: c = "EEPROM"; break;
1426 default: c = "<unknown>";
1430 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1431 if (priv->reg_domain == channel_table[i].reg_domain)
1432 r = channel_table[i].name;
1434 p += sprintf(p, "MAC memory type:\t%s\n", c);
1435 p += sprintf(p, "Regulatory domain:\t%s\n", r);
1436 p += sprintf(p, "Host CRC checking:\t%s\n",
1437 priv->do_rx_crc ? "On" : "Off");
1438 p += sprintf(p, "WPA-capable firmware:\t%s\n",
1439 priv->use_wpa ? "Yes" : "No");
1442 switch(priv->station_state) {
1443 case STATION_STATE_SCANNING: s = "Scanning"; break;
1444 case STATION_STATE_JOINNING: s = "Joining"; break;
1445 case STATION_STATE_AUTHENTICATING: s = "Authenticating"; break;
1446 case STATION_STATE_ASSOCIATING: s = "Associating"; break;
1447 case STATION_STATE_READY: s = "Ready"; break;
1448 case STATION_STATE_REASSOCIATING: s = "Reassociating"; break;
1449 case STATION_STATE_MGMT_ERROR: s = "Management error"; break;
1450 case STATION_STATE_DOWN: s = "Down"; break;
1451 default: s = "<unknown>";
1454 p += sprintf(p, "Current state:\t\t%s\n", s);
1458 static int atmel_read_proc(char *page, char **start, off_t off,
1459 int count, int *eof, void *data)
1461 struct atmel_private *priv = data;
1462 int len = atmel_proc_output (page, priv);
1463 if (len <= off+count) *eof = 1;
1464 *start = page + off;
1466 if (len>count) len = count;
1471 struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
1472 const AtmelFWType fw_type,
1473 struct device *sys_dev,
1474 int (*card_present)(void *), void *card)
1476 struct proc_dir_entry *ent;
1477 struct net_device *dev;
1478 struct atmel_private *priv;
1481 /* Create the network device object. */
1482 dev = alloc_etherdev(sizeof(*priv));
1484 printk(KERN_ERR "atmel: Couldn't alloc_etherdev\n");
1487 if (dev_alloc_name(dev, dev->name) < 0) {
1488 printk(KERN_ERR "atmel: Couldn't get name!\n");
1492 priv = netdev_priv(dev);
1494 priv->sys_dev = sys_dev;
1495 priv->present_callback = card_present;
1497 priv->firmware = NULL;
1498 priv->firmware_id[0] = '\0';
1499 priv->firmware_type = fw_type;
1500 if (firmware) /* module parameter */
1501 strcpy(priv->firmware_id, firmware);
1502 priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI;
1503 priv->station_state = STATION_STATE_DOWN;
1504 priv->do_rx_crc = 0;
1505 /* For PCMCIA cards, some chips need CRC, some don't
1506 so we have to probe. */
1507 if (priv->bus_type == BUS_TYPE_PCCARD) {
1508 priv->probe_crc = 1;
1509 priv->crc_ok_cnt = priv->crc_ko_cnt = 0;
1511 priv->probe_crc = 0;
1512 priv->last_qual = jiffies;
1513 priv->last_beacon_timestamp = 0;
1514 memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
1515 memset(priv->BSSID, 0, 6);
1516 priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */
1517 priv->station_was_associated = 0;
1519 priv->last_survey = jiffies;
1520 priv->preamble = LONG_PREAMBLE;
1521 priv->operating_mode = IW_MODE_INFRA;
1522 priv->connect_to_any_BSS = 0;
1523 priv->config_reg_domain = 0;
1524 priv->reg_domain = 0;
1526 priv->auto_tx_rate = 1;
1528 priv->power_mode = 0;
1529 priv->SSID[0] = '\0';
1530 priv->SSID_size = 0;
1531 priv->new_SSID_size = 0;
1532 priv->frag_threshold = 2346;
1533 priv->rts_threshold = 2347;
1534 priv->short_retry = 7;
1535 priv->long_retry = 4;
1537 priv->wep_is_on = 0;
1538 priv->default_key = 0;
1539 priv->encryption_level = 0;
1540 priv->exclude_unencrypted = 0;
1541 priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1543 memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
1544 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1546 priv->default_beacon_period = priv->beacon_period = 100;
1547 priv->listen_interval = 1;
1549 init_timer(&priv->management_timer);
1550 spin_lock_init(&priv->irqlock);
1551 spin_lock_init(&priv->timerlock);
1552 priv->management_timer.function = atmel_management_timer;
1553 priv->management_timer.data = (unsigned long) dev;
1555 dev->open = atmel_open;
1556 dev->stop = atmel_close;
1557 dev->change_mtu = atmel_change_mtu;
1558 dev->set_mac_address = atmel_set_mac_address;
1559 dev->hard_start_xmit = start_tx;
1560 dev->wireless_handlers = (struct iw_handler_def *)&atmel_handler_def;
1561 dev->do_ioctl = atmel_ioctl;
1563 dev->base_addr = port;
1565 SET_NETDEV_DEV(dev, sys_dev);
1567 if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) {
1568 printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc);
1572 if (!request_region(dev->base_addr, 32,
1573 priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) {
1577 if (register_netdev(dev))
1580 if (!probe_atmel_card(dev)){
1581 unregister_netdev(dev);
1585 netif_carrier_off(dev);
1587 ent = create_proc_read_entry ("driver/atmel", 0, NULL, atmel_read_proc, priv);
1589 printk(KERN_WARNING "atmel: unable to create /proc entry.\n");
1591 printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n",
1592 dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr);
1597 release_region( dev->base_addr, 32);
1599 free_irq(dev->irq, dev);
1605 EXPORT_SYMBOL(init_atmel_card);
1607 void stop_atmel_card(struct net_device *dev)
1609 struct atmel_private *priv = netdev_priv(dev);
1611 /* put a brick on it... */
1612 if (priv->bus_type == BUS_TYPE_PCCARD)
1613 atmel_write16(dev, GCR, 0x0060);
1614 atmel_write16(dev, GCR, 0x0040);
1616 del_timer_sync(&priv->management_timer);
1617 unregister_netdev(dev);
1618 remove_proc_entry("driver/atmel", NULL);
1619 free_irq(dev->irq, dev);
1620 kfree(priv->firmware);
1621 release_region(dev->base_addr, 32);
1625 EXPORT_SYMBOL(stop_atmel_card);
1627 static int atmel_set_essid(struct net_device *dev,
1628 struct iw_request_info *info,
1629 struct iw_point *dwrq,
1632 struct atmel_private *priv = netdev_priv(dev);
1634 /* Check if we asked for `any' */
1635 if(dwrq->flags == 0) {
1636 priv->connect_to_any_BSS = 1;
1638 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1640 priv->connect_to_any_BSS = 0;
1642 /* Check the size of the string */
1643 if (dwrq->length > MAX_SSID_LENGTH)
1648 memcpy(priv->new_SSID, extra, dwrq->length);
1649 priv->new_SSID_size = dwrq->length;
1652 return -EINPROGRESS;
1655 static int atmel_get_essid(struct net_device *dev,
1656 struct iw_request_info *info,
1657 struct iw_point *dwrq,
1660 struct atmel_private *priv = netdev_priv(dev);
1662 /* Get the current SSID */
1663 if (priv->new_SSID_size != 0) {
1664 memcpy(extra, priv->new_SSID, priv->new_SSID_size);
1665 dwrq->length = priv->new_SSID_size;
1667 memcpy(extra, priv->SSID, priv->SSID_size);
1668 dwrq->length = priv->SSID_size;
1671 dwrq->flags = !priv->connect_to_any_BSS; /* active */
1676 static int atmel_get_wap(struct net_device *dev,
1677 struct iw_request_info *info,
1678 struct sockaddr *awrq,
1681 struct atmel_private *priv = netdev_priv(dev);
1682 memcpy(awrq->sa_data, priv->CurrentBSSID, 6);
1683 awrq->sa_family = ARPHRD_ETHER;
1688 static int atmel_set_encode(struct net_device *dev,
1689 struct iw_request_info *info,
1690 struct iw_point *dwrq,
1693 struct atmel_private *priv = netdev_priv(dev);
1695 /* Basic checking: do we have a key to set ?
1696 * Note : with the new API, it's impossible to get a NULL pointer.
1697 * Therefore, we need to check a key size == 0 instead.
1698 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag
1699 * when no key is present (only change flags), but older versions
1700 * don't do it. - Jean II */
1701 if (dwrq->length > 0) {
1702 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1703 int current_index = priv->default_key;
1704 /* Check the size of the key */
1705 if (dwrq->length > 13) {
1708 /* Check the index (none -> use current) */
1709 if (index < 0 || index >= 4)
1710 index = current_index;
1712 priv->default_key = index;
1713 /* Set the length */
1714 if (dwrq->length > 5)
1715 priv->wep_key_len[index] = 13;
1717 if (dwrq->length > 0)
1718 priv->wep_key_len[index] = 5;
1720 /* Disable the key */
1721 priv->wep_key_len[index] = 0;
1722 /* Check if the key is not marked as invalid */
1723 if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
1725 memset(priv->wep_keys[index], 0, 13);
1726 /* Copy the key in the driver */
1727 memcpy(priv->wep_keys[index], extra, dwrq->length);
1729 /* WE specify that if a valid key is set, encryption
1730 * should be enabled (user may turn it off later)
1731 * This is also how "iwconfig ethX key on" works */
1732 if (index == current_index &&
1733 priv->wep_key_len[index] > 0) {
1734 priv->wep_is_on = 1;
1735 priv->exclude_unencrypted = 1;
1736 if (priv->wep_key_len[index] > 5) {
1737 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1738 priv->encryption_level = 2;
1740 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1741 priv->encryption_level = 1;
1745 /* Do we want to just set the transmit key index ? */
1746 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1747 if (index >= 0 && index < 4) {
1748 priv->default_key = index;
1750 /* Don't complain if only change the mode */
1751 if (!(dwrq->flags & IW_ENCODE_MODE))
1754 /* Read the flags */
1755 if (dwrq->flags & IW_ENCODE_DISABLED) {
1756 priv->wep_is_on = 0;
1757 priv->encryption_level = 0;
1758 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1760 priv->wep_is_on = 1;
1761 if (priv->wep_key_len[priv->default_key] > 5) {
1762 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1763 priv->encryption_level = 2;
1765 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1766 priv->encryption_level = 1;
1769 if (dwrq->flags & IW_ENCODE_RESTRICTED)
1770 priv->exclude_unencrypted = 1;
1771 if(dwrq->flags & IW_ENCODE_OPEN)
1772 priv->exclude_unencrypted = 0;
1774 return -EINPROGRESS; /* Call commit handler */
1777 static int atmel_get_encode(struct net_device *dev,
1778 struct iw_request_info *info,
1779 struct iw_point *dwrq,
1782 struct atmel_private *priv = netdev_priv(dev);
1783 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1785 if (!priv->wep_is_on)
1786 dwrq->flags = IW_ENCODE_DISABLED;
1788 if (priv->exclude_unencrypted)
1789 dwrq->flags = IW_ENCODE_RESTRICTED;
1791 dwrq->flags = IW_ENCODE_OPEN;
1793 /* Which key do we want ? -1 -> tx index */
1794 if (index < 0 || index >= 4)
1795 index = priv->default_key;
1796 dwrq->flags |= index + 1;
1797 /* Copy the key to the user buffer */
1798 dwrq->length = priv->wep_key_len[index];
1799 if (dwrq->length > 16) {
1802 memset(extra, 0, 16);
1803 memcpy(extra, priv->wep_keys[index], dwrq->length);
1809 static int atmel_set_encodeext(struct net_device *dev,
1810 struct iw_request_info *info,
1811 union iwreq_data *wrqu,
1814 struct atmel_private *priv = netdev_priv(dev);
1815 struct iw_point *encoding = &wrqu->encoding;
1816 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1817 int idx, key_len, alg = ext->alg, set_key = 1;
1819 /* Determine and validate the key index */
1820 idx = encoding->flags & IW_ENCODE_INDEX;
1822 if (idx < 1 || idx > 4)
1826 idx = priv->default_key;
1828 if (encoding->flags & IW_ENCODE_DISABLED)
1829 alg = IW_ENCODE_ALG_NONE;
1831 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
1832 priv->default_key = idx;
1833 set_key = ext->key_len > 0 ? 1 : 0;
1837 /* Set the requested key first */
1839 case IW_ENCODE_ALG_NONE:
1840 priv->wep_is_on = 0;
1841 priv->encryption_level = 0;
1842 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1844 case IW_ENCODE_ALG_WEP:
1845 if (ext->key_len > 5) {
1846 priv->wep_key_len[idx] = 13;
1847 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1848 priv->encryption_level = 2;
1849 } else if (ext->key_len > 0) {
1850 priv->wep_key_len[idx] = 5;
1851 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1852 priv->encryption_level = 1;
1856 priv->wep_is_on = 1;
1857 memset(priv->wep_keys[idx], 0, 13);
1858 key_len = min ((int)ext->key_len, priv->wep_key_len[idx]);
1859 memcpy(priv->wep_keys[idx], ext->key, key_len);
1866 return -EINPROGRESS;
1869 static int atmel_get_encodeext(struct net_device *dev,
1870 struct iw_request_info *info,
1871 union iwreq_data *wrqu,
1874 struct atmel_private *priv = netdev_priv(dev);
1875 struct iw_point *encoding = &wrqu->encoding;
1876 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1877 int idx, max_key_len;
1879 max_key_len = encoding->length - sizeof(*ext);
1880 if (max_key_len < 0)
1883 idx = encoding->flags & IW_ENCODE_INDEX;
1885 if (idx < 1 || idx > 4)
1889 idx = priv->default_key;
1891 encoding->flags = idx + 1;
1892 memset(ext, 0, sizeof(*ext));
1894 if (!priv->wep_is_on) {
1895 ext->alg = IW_ENCODE_ALG_NONE;
1897 encoding->flags |= IW_ENCODE_DISABLED;
1899 if (priv->encryption_level > 0)
1900 ext->alg = IW_ENCODE_ALG_WEP;
1904 ext->key_len = priv->wep_key_len[idx];
1905 memcpy(ext->key, priv->wep_keys[idx], ext->key_len);
1906 encoding->flags |= IW_ENCODE_ENABLED;
1912 static int atmel_set_auth(struct net_device *dev,
1913 struct iw_request_info *info,
1914 union iwreq_data *wrqu, char *extra)
1916 struct atmel_private *priv = netdev_priv(dev);
1917 struct iw_param *param = &wrqu->param;
1919 switch (param->flags & IW_AUTH_INDEX) {
1920 case IW_AUTH_WPA_VERSION:
1921 case IW_AUTH_CIPHER_PAIRWISE:
1922 case IW_AUTH_CIPHER_GROUP:
1923 case IW_AUTH_KEY_MGMT:
1924 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1925 case IW_AUTH_PRIVACY_INVOKED:
1927 * atmel does not use these parameters
1931 case IW_AUTH_DROP_UNENCRYPTED:
1932 priv->exclude_unencrypted = param->value ? 1 : 0;
1935 case IW_AUTH_80211_AUTH_ALG: {
1936 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
1937 priv->exclude_unencrypted = 1;
1938 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
1939 priv->exclude_unencrypted = 0;
1945 case IW_AUTH_WPA_ENABLED:
1946 /* Silently accept disable of WPA */
1947 if (param->value > 0)
1954 return -EINPROGRESS;
1957 static int atmel_get_auth(struct net_device *dev,
1958 struct iw_request_info *info,
1959 union iwreq_data *wrqu, char *extra)
1961 struct atmel_private *priv = netdev_priv(dev);
1962 struct iw_param *param = &wrqu->param;
1964 switch (param->flags & IW_AUTH_INDEX) {
1965 case IW_AUTH_DROP_UNENCRYPTED:
1966 param->value = priv->exclude_unencrypted;
1969 case IW_AUTH_80211_AUTH_ALG:
1970 if (priv->exclude_unencrypted == 1)
1971 param->value = IW_AUTH_ALG_SHARED_KEY;
1973 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
1976 case IW_AUTH_WPA_ENABLED:
1987 static int atmel_get_name(struct net_device *dev,
1988 struct iw_request_info *info,
1992 strcpy(cwrq, "IEEE 802.11-DS");
1996 static int atmel_set_rate(struct net_device *dev,
1997 struct iw_request_info *info,
1998 struct iw_param *vwrq,
2001 struct atmel_private *priv = netdev_priv(dev);
2003 if (vwrq->fixed == 0) {
2005 priv->auto_tx_rate = 1;
2007 priv->auto_tx_rate = 0;
2009 /* Which type of value ? */
2010 if ((vwrq->value < 4) && (vwrq->value >= 0)) {
2011 /* Setting by rate index */
2012 priv->tx_rate = vwrq->value;
2014 /* Setting by frequency value */
2015 switch (vwrq->value) {
2016 case 1000000: priv->tx_rate = 0; break;
2017 case 2000000: priv->tx_rate = 1; break;
2018 case 5500000: priv->tx_rate = 2; break;
2019 case 11000000: priv->tx_rate = 3; break;
2020 default: return -EINVAL;
2025 return -EINPROGRESS;
2028 static int atmel_set_mode(struct net_device *dev,
2029 struct iw_request_info *info,
2033 struct atmel_private *priv = netdev_priv(dev);
2035 if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
2038 priv->operating_mode = *uwrq;
2039 return -EINPROGRESS;
2042 static int atmel_get_mode(struct net_device *dev,
2043 struct iw_request_info *info,
2047 struct atmel_private *priv = netdev_priv(dev);
2049 *uwrq = priv->operating_mode;
2053 static int atmel_get_rate(struct net_device *dev,
2054 struct iw_request_info *info,
2055 struct iw_param *vwrq,
2058 struct atmel_private *priv = netdev_priv(dev);
2060 if (priv->auto_tx_rate) {
2062 vwrq->value = 11000000;
2065 switch(priv->tx_rate) {
2066 case 0: vwrq->value = 1000000; break;
2067 case 1: vwrq->value = 2000000; break;
2068 case 2: vwrq->value = 5500000; break;
2069 case 3: vwrq->value = 11000000; break;
2075 static int atmel_set_power(struct net_device *dev,
2076 struct iw_request_info *info,
2077 struct iw_param *vwrq,
2080 struct atmel_private *priv = netdev_priv(dev);
2081 priv->power_mode = vwrq->disabled ? 0 : 1;
2082 return -EINPROGRESS;
2085 static int atmel_get_power(struct net_device *dev,
2086 struct iw_request_info *info,
2087 struct iw_param *vwrq,
2090 struct atmel_private *priv = netdev_priv(dev);
2091 vwrq->disabled = priv->power_mode ? 0 : 1;
2092 vwrq->flags = IW_POWER_ON;
2096 static int atmel_set_retry(struct net_device *dev,
2097 struct iw_request_info *info,
2098 struct iw_param *vwrq,
2101 struct atmel_private *priv = netdev_priv(dev);
2103 if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
2104 if (vwrq->flags & IW_RETRY_LONG)
2105 priv->long_retry = vwrq->value;
2106 else if (vwrq->flags & IW_RETRY_SHORT)
2107 priv->short_retry = vwrq->value;
2109 /* No modifier : set both */
2110 priv->long_retry = vwrq->value;
2111 priv->short_retry = vwrq->value;
2113 return -EINPROGRESS;
2119 static int atmel_get_retry(struct net_device *dev,
2120 struct iw_request_info *info,
2121 struct iw_param *vwrq,
2124 struct atmel_private *priv = netdev_priv(dev);
2126 vwrq->disabled = 0; /* Can't be disabled */
2128 /* Note : by default, display the short retry number */
2129 if (vwrq->flags & IW_RETRY_LONG) {
2130 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
2131 vwrq->value = priv->long_retry;
2133 vwrq->flags = IW_RETRY_LIMIT;
2134 vwrq->value = priv->short_retry;
2135 if (priv->long_retry != priv->short_retry)
2136 vwrq->flags |= IW_RETRY_SHORT;
2142 static int atmel_set_rts(struct net_device *dev,
2143 struct iw_request_info *info,
2144 struct iw_param *vwrq,
2147 struct atmel_private *priv = netdev_priv(dev);
2148 int rthr = vwrq->value;
2152 if ((rthr < 0) || (rthr > 2347)) {
2155 priv->rts_threshold = rthr;
2157 return -EINPROGRESS; /* Call commit handler */
2160 static int atmel_get_rts(struct net_device *dev,
2161 struct iw_request_info *info,
2162 struct iw_param *vwrq,
2165 struct atmel_private *priv = netdev_priv(dev);
2167 vwrq->value = priv->rts_threshold;
2168 vwrq->disabled = (vwrq->value >= 2347);
2174 static int atmel_set_frag(struct net_device *dev,
2175 struct iw_request_info *info,
2176 struct iw_param *vwrq,
2179 struct atmel_private *priv = netdev_priv(dev);
2180 int fthr = vwrq->value;
2184 if ((fthr < 256) || (fthr > 2346)) {
2187 fthr &= ~0x1; /* Get an even value - is it really needed ??? */
2188 priv->frag_threshold = fthr;
2190 return -EINPROGRESS; /* Call commit handler */
2193 static int atmel_get_frag(struct net_device *dev,
2194 struct iw_request_info *info,
2195 struct iw_param *vwrq,
2198 struct atmel_private *priv = netdev_priv(dev);
2200 vwrq->value = priv->frag_threshold;
2201 vwrq->disabled = (vwrq->value >= 2346);
2207 static int atmel_set_freq(struct net_device *dev,
2208 struct iw_request_info *info,
2209 struct iw_freq *fwrq,
2212 struct atmel_private *priv = netdev_priv(dev);
2213 int rc = -EINPROGRESS; /* Call commit handler */
2215 /* If setting by frequency, convert to a channel */
2217 int f = fwrq->m / 100000;
2219 /* Hack to fall through... */
2221 fwrq->m = ieee80211_freq_to_dsss_chan(f);
2223 /* Setting by channel number */
2224 if ((fwrq->m > 1000) || (fwrq->e > 0))
2227 int channel = fwrq->m;
2228 if (atmel_validate_channel(priv, channel) == 0) {
2229 priv->channel = channel;
2237 static int atmel_get_freq(struct net_device *dev,
2238 struct iw_request_info *info,
2239 struct iw_freq *fwrq,
2242 struct atmel_private *priv = netdev_priv(dev);
2244 fwrq->m = priv->channel;
2249 static int atmel_set_scan(struct net_device *dev,
2250 struct iw_request_info *info,
2251 struct iw_point *dwrq,
2254 struct atmel_private *priv = netdev_priv(dev);
2255 unsigned long flags;
2257 /* Note : you may have realised that, as this is a SET operation,
2258 * this is privileged and therefore a normal user can't
2260 * This is not an error, while the device perform scanning,
2261 * traffic doesn't flow, so it's a perfect DoS...
2264 if (priv->station_state == STATION_STATE_DOWN)
2267 /* Timeout old surveys. */
2268 if (time_after(jiffies, priv->last_survey + 20 * HZ))
2269 priv->site_survey_state = SITE_SURVEY_IDLE;
2270 priv->last_survey = jiffies;
2272 /* Initiate a scan command */
2273 if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS)
2276 del_timer_sync(&priv->management_timer);
2277 spin_lock_irqsave(&priv->irqlock, flags);
2279 priv->site_survey_state = SITE_SURVEY_IN_PROGRESS;
2280 priv->fast_scan = 0;
2281 atmel_scan(priv, 0);
2282 spin_unlock_irqrestore(&priv->irqlock, flags);
2287 static int atmel_get_scan(struct net_device *dev,
2288 struct iw_request_info *info,
2289 struct iw_point *dwrq,
2292 struct atmel_private *priv = netdev_priv(dev);
2294 char *current_ev = extra;
2295 struct iw_event iwe;
2297 if (priv->site_survey_state != SITE_SURVEY_COMPLETED)
2300 for (i = 0; i < priv->BSS_list_entries; i++) {
2301 iwe.cmd = SIOCGIWAP;
2302 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
2303 memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6);
2304 current_ev = iwe_stream_add_event(info, current_ev,
2305 extra + IW_SCAN_MAX_DATA,
2306 &iwe, IW_EV_ADDR_LEN);
2308 iwe.u.data.length = priv->BSSinfo[i].SSIDsize;
2309 if (iwe.u.data.length > 32)
2310 iwe.u.data.length = 32;
2311 iwe.cmd = SIOCGIWESSID;
2312 iwe.u.data.flags = 1;
2313 current_ev = iwe_stream_add_point(info, current_ev,
2314 extra + IW_SCAN_MAX_DATA,
2315 &iwe, priv->BSSinfo[i].SSID);
2317 iwe.cmd = SIOCGIWMODE;
2318 iwe.u.mode = priv->BSSinfo[i].BSStype;
2319 current_ev = iwe_stream_add_event(info, current_ev,
2320 extra + IW_SCAN_MAX_DATA,
2321 &iwe, IW_EV_UINT_LEN);
2323 iwe.cmd = SIOCGIWFREQ;
2324 iwe.u.freq.m = priv->BSSinfo[i].channel;
2326 current_ev = iwe_stream_add_event(info, current_ev,
2327 extra + IW_SCAN_MAX_DATA,
2328 &iwe, IW_EV_FREQ_LEN);
2330 /* Add quality statistics */
2332 iwe.u.qual.level = priv->BSSinfo[i].RSSI;
2333 iwe.u.qual.qual = iwe.u.qual.level;
2334 /* iwe.u.qual.noise = SOMETHING */
2335 current_ev = iwe_stream_add_event(info, current_ev,
2336 extra + IW_SCAN_MAX_DATA,
2337 &iwe, IW_EV_QUAL_LEN);
2340 iwe.cmd = SIOCGIWENCODE;
2341 if (priv->BSSinfo[i].UsingWEP)
2342 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
2344 iwe.u.data.flags = IW_ENCODE_DISABLED;
2345 iwe.u.data.length = 0;
2346 current_ev = iwe_stream_add_point(info, current_ev,
2347 extra + IW_SCAN_MAX_DATA,
2351 /* Length of data */
2352 dwrq->length = (current_ev - extra);
2358 static int atmel_get_range(struct net_device *dev,
2359 struct iw_request_info *info,
2360 struct iw_point *dwrq,
2363 struct atmel_private *priv = netdev_priv(dev);
2364 struct iw_range *range = (struct iw_range *) extra;
2367 dwrq->length = sizeof(struct iw_range);
2368 memset(range, 0, sizeof(struct iw_range));
2369 range->min_nwid = 0x0000;
2370 range->max_nwid = 0x0000;
2371 range->num_channels = 0;
2372 for (j = 0; j < ARRAY_SIZE(channel_table); j++)
2373 if (priv->reg_domain == channel_table[j].reg_domain) {
2374 range->num_channels = channel_table[j].max - channel_table[j].min + 1;
2377 if (range->num_channels != 0) {
2378 for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
2379 range->freq[k].i = i; /* List index */
2381 /* Values in MHz -> * 10^5 * 10 */
2382 range->freq[k].m = (ieee80211_dsss_chan_to_freq(i) *
2384 range->freq[k++].e = 1;
2386 range->num_frequency = k;
2389 range->max_qual.qual = 100;
2390 range->max_qual.level = 100;
2391 range->max_qual.noise = 0;
2392 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
2394 range->avg_qual.qual = 50;
2395 range->avg_qual.level = 50;
2396 range->avg_qual.noise = 0;
2397 range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
2399 range->sensitivity = 0;
2401 range->bitrate[0] = 1000000;
2402 range->bitrate[1] = 2000000;
2403 range->bitrate[2] = 5500000;
2404 range->bitrate[3] = 11000000;
2405 range->num_bitrates = 4;
2408 range->max_rts = 2347;
2409 range->min_frag = 256;
2410 range->max_frag = 2346;
2412 range->encoding_size[0] = 5;
2413 range->encoding_size[1] = 13;
2414 range->num_encoding_sizes = 2;
2415 range->max_encoding_tokens = 4;
2417 range->pmp_flags = IW_POWER_ON;
2418 range->pmt_flags = IW_POWER_ON;
2421 range->we_version_source = WIRELESS_EXT;
2422 range->we_version_compiled = WIRELESS_EXT;
2423 range->retry_capa = IW_RETRY_LIMIT ;
2424 range->retry_flags = IW_RETRY_LIMIT;
2425 range->r_time_flags = 0;
2426 range->min_retry = 1;
2427 range->max_retry = 65535;
2432 static int atmel_set_wap(struct net_device *dev,
2433 struct iw_request_info *info,
2434 struct sockaddr *awrq,
2437 struct atmel_private *priv = netdev_priv(dev);
2439 static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2440 static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2441 unsigned long flags;
2443 if (awrq->sa_family != ARPHRD_ETHER)
2446 if (!memcmp(any, awrq->sa_data, 6) ||
2447 !memcmp(off, awrq->sa_data, 6)) {
2448 del_timer_sync(&priv->management_timer);
2449 spin_lock_irqsave(&priv->irqlock, flags);
2450 atmel_scan(priv, 1);
2451 spin_unlock_irqrestore(&priv->irqlock, flags);
2455 for (i = 0; i < priv->BSS_list_entries; i++) {
2456 if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) {
2457 if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) {
2459 } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) {
2462 del_timer_sync(&priv->management_timer);
2463 spin_lock_irqsave(&priv->irqlock, flags);
2464 atmel_join_bss(priv, i);
2465 spin_unlock_irqrestore(&priv->irqlock, flags);
2474 static int atmel_config_commit(struct net_device *dev,
2475 struct iw_request_info *info, /* NULL */
2476 void *zwrq, /* NULL */
2477 char *extra) /* NULL */
2479 return atmel_open(dev);
2482 static const iw_handler atmel_handler[] =
2484 (iw_handler) atmel_config_commit, /* SIOCSIWCOMMIT */
2485 (iw_handler) atmel_get_name, /* SIOCGIWNAME */
2486 (iw_handler) NULL, /* SIOCSIWNWID */
2487 (iw_handler) NULL, /* SIOCGIWNWID */
2488 (iw_handler) atmel_set_freq, /* SIOCSIWFREQ */
2489 (iw_handler) atmel_get_freq, /* SIOCGIWFREQ */
2490 (iw_handler) atmel_set_mode, /* SIOCSIWMODE */
2491 (iw_handler) atmel_get_mode, /* SIOCGIWMODE */
2492 (iw_handler) NULL, /* SIOCSIWSENS */
2493 (iw_handler) NULL, /* SIOCGIWSENS */
2494 (iw_handler) NULL, /* SIOCSIWRANGE */
2495 (iw_handler) atmel_get_range, /* SIOCGIWRANGE */
2496 (iw_handler) NULL, /* SIOCSIWPRIV */
2497 (iw_handler) NULL, /* SIOCGIWPRIV */
2498 (iw_handler) NULL, /* SIOCSIWSTATS */
2499 (iw_handler) NULL, /* SIOCGIWSTATS */
2500 (iw_handler) NULL, /* SIOCSIWSPY */
2501 (iw_handler) NULL, /* SIOCGIWSPY */
2502 (iw_handler) NULL, /* -- hole -- */
2503 (iw_handler) NULL, /* -- hole -- */
2504 (iw_handler) atmel_set_wap, /* SIOCSIWAP */
2505 (iw_handler) atmel_get_wap, /* SIOCGIWAP */
2506 (iw_handler) NULL, /* -- hole -- */
2507 (iw_handler) NULL, /* SIOCGIWAPLIST */
2508 (iw_handler) atmel_set_scan, /* SIOCSIWSCAN */
2509 (iw_handler) atmel_get_scan, /* SIOCGIWSCAN */
2510 (iw_handler) atmel_set_essid, /* SIOCSIWESSID */
2511 (iw_handler) atmel_get_essid, /* SIOCGIWESSID */
2512 (iw_handler) NULL, /* SIOCSIWNICKN */
2513 (iw_handler) NULL, /* SIOCGIWNICKN */
2514 (iw_handler) NULL, /* -- hole -- */
2515 (iw_handler) NULL, /* -- hole -- */
2516 (iw_handler) atmel_set_rate, /* SIOCSIWRATE */
2517 (iw_handler) atmel_get_rate, /* SIOCGIWRATE */
2518 (iw_handler) atmel_set_rts, /* SIOCSIWRTS */
2519 (iw_handler) atmel_get_rts, /* SIOCGIWRTS */
2520 (iw_handler) atmel_set_frag, /* SIOCSIWFRAG */
2521 (iw_handler) atmel_get_frag, /* SIOCGIWFRAG */
2522 (iw_handler) NULL, /* SIOCSIWTXPOW */
2523 (iw_handler) NULL, /* SIOCGIWTXPOW */
2524 (iw_handler) atmel_set_retry, /* SIOCSIWRETRY */
2525 (iw_handler) atmel_get_retry, /* SIOCGIWRETRY */
2526 (iw_handler) atmel_set_encode, /* SIOCSIWENCODE */
2527 (iw_handler) atmel_get_encode, /* SIOCGIWENCODE */
2528 (iw_handler) atmel_set_power, /* SIOCSIWPOWER */
2529 (iw_handler) atmel_get_power, /* SIOCGIWPOWER */
2530 (iw_handler) NULL, /* -- hole -- */
2531 (iw_handler) NULL, /* -- hole -- */
2532 (iw_handler) NULL, /* SIOCSIWGENIE */
2533 (iw_handler) NULL, /* SIOCGIWGENIE */
2534 (iw_handler) atmel_set_auth, /* SIOCSIWAUTH */
2535 (iw_handler) atmel_get_auth, /* SIOCGIWAUTH */
2536 (iw_handler) atmel_set_encodeext, /* SIOCSIWENCODEEXT */
2537 (iw_handler) atmel_get_encodeext, /* SIOCGIWENCODEEXT */
2538 (iw_handler) NULL, /* SIOCSIWPMKSA */
2541 static const iw_handler atmel_private_handler[] =
2543 NULL, /* SIOCIWFIRSTPRIV */
2546 typedef struct atmel_priv_ioctl {
2548 unsigned char __user *data;
2552 #define ATMELFWL SIOCIWFIRSTPRIV
2553 #define ATMELIDIFC ATMELFWL + 1
2554 #define ATMELRD ATMELFWL + 2
2555 #define ATMELMAGIC 0x51807
2556 #define REGDOMAINSZ 20
2558 static const struct iw_priv_args atmel_private_args[] = {
2561 .set_args = IW_PRIV_TYPE_BYTE
2562 | IW_PRIV_SIZE_FIXED
2563 | sizeof (atmel_priv_ioctl),
2564 .get_args = IW_PRIV_TYPE_NONE,
2568 .set_args = IW_PRIV_TYPE_NONE,
2569 .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
2570 .name = "atmelidifc"
2573 .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ,
2574 .get_args = IW_PRIV_TYPE_NONE,
2579 static const struct iw_handler_def atmel_handler_def =
2581 .num_standard = ARRAY_SIZE(atmel_handler),
2582 .num_private = ARRAY_SIZE(atmel_private_handler),
2583 .num_private_args = ARRAY_SIZE(atmel_private_args),
2584 .standard = (iw_handler *) atmel_handler,
2585 .private = (iw_handler *) atmel_private_handler,
2586 .private_args = (struct iw_priv_args *) atmel_private_args,
2587 .get_wireless_stats = atmel_get_wireless_stats
2590 static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2593 struct atmel_private *priv = netdev_priv(dev);
2594 atmel_priv_ioctl com;
2595 struct iwreq *wrq = (struct iwreq *) rq;
2596 unsigned char *new_firmware;
2597 char domain[REGDOMAINSZ + 1];
2601 wrq->u.param.value = ATMELMAGIC;
2605 if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
2610 if (!capable(CAP_NET_ADMIN)) {
2615 if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
2620 if (copy_from_user(new_firmware, com.data, com.len)) {
2621 kfree(new_firmware);
2626 kfree(priv->firmware);
2628 priv->firmware = new_firmware;
2629 priv->firmware_length = com.len;
2630 strncpy(priv->firmware_id, com.id, 31);
2631 priv->firmware_id[31] = '\0';
2635 if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) {
2640 if (!capable(CAP_NET_ADMIN)) {
2645 domain[REGDOMAINSZ] = 0;
2647 for (i = 0; i < ARRAY_SIZE(channel_table); i++) {
2648 /* strcasecmp doesn't exist in the library */
2649 char *a = channel_table[i].name;
2654 if (tolower(c1) != tolower(c2))
2658 priv->config_reg_domain = channel_table[i].reg_domain;
2663 if (rc == 0 && priv->station_state != STATION_STATE_DOWN)
2664 rc = atmel_open(dev);
2683 static void atmel_enter_state(struct atmel_private *priv, int new_state)
2685 int old_state = priv->station_state;
2687 if (new_state == old_state)
2690 priv->station_state = new_state;
2692 if (new_state == STATION_STATE_READY) {
2693 netif_start_queue(priv->dev);
2694 netif_carrier_on(priv->dev);
2697 if (old_state == STATION_STATE_READY) {
2698 netif_carrier_off(priv->dev);
2699 if (netif_running(priv->dev))
2700 netif_stop_queue(priv->dev);
2701 priv->last_beacon_timestamp = 0;
2705 static void atmel_scan(struct atmel_private *priv, int specific_ssid)
2709 u8 SSID[MAX_SSID_LENGTH];
2713 __le16 min_channel_time;
2714 __le16 max_channel_time;
2719 memset(cmd.BSSID, 0xff, 6);
2721 if (priv->fast_scan) {
2722 cmd.SSID_size = priv->SSID_size;
2723 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2724 cmd.min_channel_time = cpu_to_le16(10);
2725 cmd.max_channel_time = cpu_to_le16(50);
2727 priv->BSS_list_entries = 0;
2729 cmd.min_channel_time = cpu_to_le16(10);
2730 cmd.max_channel_time = cpu_to_le16(120);
2736 cmd.options |= SCAN_OPTIONS_SITE_SURVEY;
2738 cmd.channel = (priv->channel & 0x7f);
2739 cmd.scan_type = SCAN_TYPE_ACTIVE;
2740 cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ?
2741 BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE);
2743 atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd));
2745 /* This must come after all hardware access to avoid being messed up
2746 by stuff happening in interrupt context after we leave STATE_DOWN */
2747 atmel_enter_state(priv, STATION_STATE_SCANNING);
2750 static void join(struct atmel_private *priv, int type)
2754 u8 SSID[MAX_SSID_LENGTH];
2755 u8 BSS_type; /* this is a short in a scan command - weird */
2762 cmd.SSID_size = priv->SSID_size;
2763 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2764 memcpy(cmd.BSSID, priv->CurrentBSSID, 6);
2765 cmd.channel = (priv->channel & 0x7f);
2766 cmd.BSS_type = type;
2767 cmd.timeout = cpu_to_le16(2000);
2769 atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd));
2772 static void start(struct atmel_private *priv, int type)
2776 u8 SSID[MAX_SSID_LENGTH];
2783 cmd.SSID_size = priv->SSID_size;
2784 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2785 memcpy(cmd.BSSID, priv->BSSID, 6);
2786 cmd.BSS_type = type;
2787 cmd.channel = (priv->channel & 0x7f);
2789 atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd));
2792 static void handle_beacon_probe(struct atmel_private *priv, u16 capability,
2796 int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
2797 SHORT_PREAMBLE : LONG_PREAMBLE;
2799 if (priv->preamble != new) {
2800 priv->preamble = new;
2802 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new);
2805 if (priv->channel != channel) {
2806 priv->channel = channel;
2808 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel);
2812 priv->station_is_associated = 0;
2813 atmel_enter_state(priv, STATION_STATE_JOINNING);
2815 if (priv->operating_mode == IW_MODE_INFRA)
2816 join(priv, BSS_TYPE_INFRASTRUCTURE);
2818 join(priv, BSS_TYPE_AD_HOC);
2822 static void send_authentication_request(struct atmel_private *priv, u16 system,
2823 u8 *challenge, int challenge_len)
2825 struct ieee80211_hdr header;
2826 struct auth_body auth;
2828 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
2829 header.duration_id = cpu_to_le16(0x8000);
2830 header.seq_ctrl = 0;
2831 memcpy(header.addr1, priv->CurrentBSSID, 6);
2832 memcpy(header.addr2, priv->dev->dev_addr, 6);
2833 memcpy(header.addr3, priv->CurrentBSSID, 6);
2835 if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
2836 /* no WEP for authentication frames with TrSeqNo 1 */
2837 header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
2839 auth.alg = cpu_to_le16(system);
2842 auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum);
2843 priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1;
2844 priv->CurrentAuthentTransactionSeqNum += 2;
2846 if (challenge_len != 0) {
2847 auth.el_id = 16; /* challenge_text */
2848 auth.chall_text_len = challenge_len;
2849 memcpy(auth.chall_text, challenge, challenge_len);
2850 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len);
2852 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6);
2856 static void send_association_request(struct atmel_private *priv, int is_reassoc)
2860 struct ieee80211_hdr header;
2861 struct ass_req_format {
2863 __le16 listen_interval;
2864 u8 ap[6]; /* nothing after here directly accessible */
2867 u8 ssid[MAX_SSID_LENGTH];
2873 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2874 (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ));
2875 header.duration_id = cpu_to_le16(0x8000);
2876 header.seq_ctrl = 0;
2878 memcpy(header.addr1, priv->CurrentBSSID, 6);
2879 memcpy(header.addr2, priv->dev->dev_addr, 6);
2880 memcpy(header.addr3, priv->CurrentBSSID, 6);
2882 body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
2883 if (priv->wep_is_on)
2884 body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
2885 if (priv->preamble == SHORT_PREAMBLE)
2886 body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
2888 body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period);
2890 /* current AP address - only in reassoc frame */
2892 memcpy(body.ap, priv->CurrentBSSID, 6);
2893 ssid_el_p = (u8 *)&body.ssid_el_id;
2894 bodysize = 18 + priv->SSID_size;
2896 ssid_el_p = (u8 *)&body.ap[0];
2897 bodysize = 12 + priv->SSID_size;
2900 ssid_el_p[0] = WLAN_EID_SSID;
2901 ssid_el_p[1] = priv->SSID_size;
2902 memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size);
2903 ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES;
2904 ssid_el_p[3 + priv->SSID_size] = 4; /* len of suported rates */
2905 memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4);
2907 atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize);
2910 static int is_frame_from_current_bss(struct atmel_private *priv,
2911 struct ieee80211_hdr *header)
2913 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
2914 return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0;
2916 return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0;
2919 static int retrieve_bss(struct atmel_private *priv)
2922 int max_rssi = -128;
2925 if (priv->BSS_list_entries == 0)
2928 if (priv->connect_to_any_BSS) {
2929 /* Select a BSS with the max-RSSI but of the same type and of
2930 the same WEP mode and that it is not marked as 'bad' (i.e.
2931 we had previously failed to connect to this BSS with the
2932 settings that we currently use) */
2933 priv->current_BSS = 0;
2934 for (i = 0; i < priv->BSS_list_entries; i++) {
2935 if (priv->operating_mode == priv->BSSinfo[i].BSStype &&
2936 ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) ||
2937 (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) &&
2938 !(priv->BSSinfo[i].channel & 0x80)) {
2939 max_rssi = priv->BSSinfo[i].RSSI;
2940 priv->current_BSS = max_index = i;
2946 for (i = 0; i < priv->BSS_list_entries; i++) {
2947 if (priv->SSID_size == priv->BSSinfo[i].SSIDsize &&
2948 memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 &&
2949 priv->operating_mode == priv->BSSinfo[i].BSStype &&
2950 atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) {
2951 if (priv->BSSinfo[i].RSSI >= max_rssi) {
2952 max_rssi = priv->BSSinfo[i].RSSI;
2960 static void store_bss_info(struct atmel_private *priv,
2961 struct ieee80211_hdr *header, u16 capability,
2962 u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len,
2963 u8 *ssid, int is_beacon)
2965 u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3;
2968 for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
2969 if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0)
2972 /* If we process a probe and an entry from this BSS exists
2973 we will update the BSS entry with the info from this BSS.
2974 If we process a beacon we will only update RSSI */
2977 if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
2979 index = priv->BSS_list_entries++;
2980 memcpy(priv->BSSinfo[index].BSSID, bss, 6);
2981 priv->BSSinfo[index].RSSI = rssi;
2983 if (rssi > priv->BSSinfo[index].RSSI)
2984 priv->BSSinfo[index].RSSI = rssi;
2989 priv->BSSinfo[index].channel = channel;
2990 priv->BSSinfo[index].beacon_period = beacon_period;
2991 priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY;
2992 memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len);
2993 priv->BSSinfo[index].SSIDsize = ssid_len;
2995 if (capability & WLAN_CAPABILITY_IBSS)
2996 priv->BSSinfo[index].BSStype = IW_MODE_ADHOC;
2997 else if (capability & WLAN_CAPABILITY_ESS)
2998 priv->BSSinfo[index].BSStype =IW_MODE_INFRA;
3000 priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
3001 SHORT_PREAMBLE : LONG_PREAMBLE;
3004 static void authenticate(struct atmel_private *priv, u16 frame_len)
3006 struct auth_body *auth = (struct auth_body *)priv->rx_buf;
3007 u16 status = le16_to_cpu(auth->status);
3008 u16 trans_seq_no = le16_to_cpu(auth->trans_seq);
3009 u16 system = le16_to_cpu(auth->alg);
3011 if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) {
3013 if (priv->station_was_associated) {
3014 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3015 send_association_request(priv, 1);
3018 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3019 send_association_request(priv, 0);
3024 if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) {
3025 int should_associate = 0;
3027 if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum)
3030 if (system == WLAN_AUTH_OPEN) {
3031 if (trans_seq_no == 0x0002) {
3032 should_associate = 1;
3034 } else if (system == WLAN_AUTH_SHARED_KEY) {
3035 if (trans_seq_no == 0x0002 &&
3036 auth->el_id == WLAN_EID_CHALLENGE) {
3037 send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len);
3039 } else if (trans_seq_no == 0x0004) {
3040 should_associate = 1;
3044 if (should_associate) {
3045 if(priv->station_was_associated) {
3046 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3047 send_association_request(priv, 1);
3050 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3051 send_association_request(priv, 0);
3057 if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
3058 /* Flip back and forth between WEP auth modes until the max
3059 * authentication tries has been exceeded.
3061 if (system == WLAN_AUTH_OPEN) {
3062 priv->CurrentAuthentTransactionSeqNum = 0x001;
3063 priv->exclude_unencrypted = 1;
3064 send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0);
3066 } else if ( system == WLAN_AUTH_SHARED_KEY
3067 && priv->wep_is_on) {
3068 priv->CurrentAuthentTransactionSeqNum = 0x001;
3069 priv->exclude_unencrypted = 0;
3070 send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0);
3072 } else if (priv->connect_to_any_BSS) {
3075 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3077 if ((bss_index = retrieve_bss(priv)) != -1) {
3078 atmel_join_bss(priv, bss_index);
3084 priv->AuthenticationRequestRetryCnt = 0;
3085 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3086 priv->station_is_associated = 0;
3089 static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
3091 struct ass_resp_format {
3098 } *ass_resp = (struct ass_resp_format *)priv->rx_buf;
3100 u16 status = le16_to_cpu(ass_resp->status);
3101 u16 ass_id = le16_to_cpu(ass_resp->ass_id);
3102 u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length;
3104 union iwreq_data wrqu;
3106 if (frame_len < 8 + rates_len)
3109 if (status == WLAN_STATUS_SUCCESS) {
3110 if (subtype == IEEE80211_STYPE_ASSOC_RESP)
3111 priv->AssociationRequestRetryCnt = 0;
3113 priv->ReAssociationRequestRetryCnt = 0;
3115 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3116 MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff);
3117 atmel_set_mib(priv, Phy_Mib_Type,
3118 PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len);
3119 if (priv->power_mode == 0) {
3120 priv->listen_interval = 1;
3121 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3122 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3123 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3124 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3126 priv->listen_interval = 2;
3127 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3128 MAC_MGMT_MIB_PS_MODE_POS, PS_MODE);
3129 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3130 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2);
3133 priv->station_is_associated = 1;
3134 priv->station_was_associated = 1;
3135 atmel_enter_state(priv, STATION_STATE_READY);
3137 /* Send association event to userspace */
3138 wrqu.data.length = 0;
3139 wrqu.data.flags = 0;
3140 memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN);
3141 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3142 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
3147 if (subtype == IEEE80211_STYPE_ASSOC_RESP &&
3148 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3149 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
3150 priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3151 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3152 priv->AssociationRequestRetryCnt++;
3153 send_association_request(priv, 0);
3157 if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
3158 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3159 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
3160 priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3161 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3162 priv->ReAssociationRequestRetryCnt++;
3163 send_association_request(priv, 1);
3167 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3168 priv->station_is_associated = 0;
3170 if (priv->connect_to_any_BSS) {
3172 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3174 if ((bss_index = retrieve_bss(priv)) != -1)
3175 atmel_join_bss(priv, bss_index);
3179 static void atmel_join_bss(struct atmel_private *priv, int bss_index)
3181 struct bss_info *bss = &priv->BSSinfo[bss_index];
3183 memcpy(priv->CurrentBSSID, bss->BSSID, 6);
3184 memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
3186 /* The WPA stuff cares about the current AP address */
3188 build_wpa_mib(priv);
3190 /* When switching to AdHoc turn OFF Power Save if needed */
3192 if (bss->BSStype == IW_MODE_ADHOC &&
3193 priv->operating_mode != IW_MODE_ADHOC &&
3195 priv->power_mode = 0;
3196 priv->listen_interval = 1;
3197 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3198 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3199 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3200 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3203 priv->operating_mode = bss->BSStype;
3204 priv->channel = bss->channel & 0x7f;
3205 priv->beacon_period = bss->beacon_period;
3207 if (priv->preamble != bss->preamble) {
3208 priv->preamble = bss->preamble;
3209 atmel_set_mib8(priv, Local_Mib_Type,
3210 LOCAL_MIB_PREAMBLE_TYPE, bss->preamble);
3213 if (!priv->wep_is_on && bss->UsingWEP) {
3214 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3215 priv->station_is_associated = 0;
3219 if (priv->wep_is_on && !bss->UsingWEP) {
3220 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3221 priv->station_is_associated = 0;
3225 atmel_enter_state(priv, STATION_STATE_JOINNING);
3227 if (priv->operating_mode == IW_MODE_INFRA)
3228 join(priv, BSS_TYPE_INFRASTRUCTURE);
3230 join(priv, BSS_TYPE_AD_HOC);
3233 static void restart_search(struct atmel_private *priv)
3237 if (!priv->connect_to_any_BSS) {
3238 atmel_scan(priv, 1);
3240 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3242 if ((bss_index = retrieve_bss(priv)) != -1)
3243 atmel_join_bss(priv, bss_index);
3245 atmel_scan(priv, 0);
3249 static void smooth_rssi(struct atmel_private *priv, u8 rssi)
3251 u8 old = priv->wstats.qual.level;
3252 u8 max_rssi = 42; /* 502-rmfd-revd max by experiment, default for now */
3254 switch (priv->firmware_type) {
3255 case ATMEL_FW_TYPE_502E:
3256 max_rssi = 63; /* 502-rmfd-reve max by experiment */
3262 rssi = rssi * 100 / max_rssi;
3263 if ((rssi + old) % 2)
3264 priv->wstats.qual.level = (rssi + old) / 2 + 1;
3266 priv->wstats.qual.level = (rssi + old) / 2;
3267 priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
3268 priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID;
3271 static void atmel_smooth_qual(struct atmel_private *priv)
3273 unsigned long time_diff = (jiffies - priv->last_qual) / HZ;
3274 while (time_diff--) {
3275 priv->last_qual += HZ;
3276 priv->wstats.qual.qual = priv->wstats.qual.qual / 2;
3277 priv->wstats.qual.qual +=
3278 priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000;
3279 priv->beacons_this_sec = 0;
3281 priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
3282 priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID;
3285 /* deals with incoming managment frames. */
3286 static void atmel_management_frame(struct atmel_private *priv,
3287 struct ieee80211_hdr *header,
3288 u16 frame_len, u8 rssi)
3292 subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE;
3294 case IEEE80211_STYPE_BEACON:
3295 case IEEE80211_STYPE_PROBE_RESP:
3297 /* beacon frame has multiple variable-length fields -
3298 never let an engineer loose with a data structure design. */
3300 struct beacon_format {
3313 } *beacon = (struct beacon_format *)priv->rx_buf;
3315 u8 channel, rates_length, ssid_length;
3316 u64 timestamp = le64_to_cpu(beacon->timestamp);
3317 u16 beacon_interval = le16_to_cpu(beacon->interval);
3318 u16 capability = le16_to_cpu(beacon->capability);
3319 u8 *beaconp = priv->rx_buf;
3320 ssid_length = beacon->ssid_length;
3321 /* this blows chunks. */
3322 if (frame_len < 14 || frame_len < ssid_length + 15)
3324 rates_length = beaconp[beacon->ssid_length + 15];
3325 if (frame_len < ssid_length + rates_length + 18)
3327 if (ssid_length > MAX_SSID_LENGTH)
3329 channel = beaconp[ssid_length + rates_length + 18];
3331 if (priv->station_state == STATION_STATE_READY) {
3332 smooth_rssi(priv, rssi);
3333 if (is_frame_from_current_bss(priv, header)) {
3334 priv->beacons_this_sec++;
3335 atmel_smooth_qual(priv);
3336 if (priv->last_beacon_timestamp) {
3337 /* Note truncate this to 32 bits - kernel can't divide a long long */
3338 u32 beacon_delay = timestamp - priv->last_beacon_timestamp;
3339 int beacons = beacon_delay / (beacon_interval * 1000);
3341 priv->wstats.miss.beacon += beacons - 1;
3343 priv->last_beacon_timestamp = timestamp;
3344 handle_beacon_probe(priv, capability, channel);
3348 if (priv->station_state == STATION_STATE_SCANNING)
3349 store_bss_info(priv, header, capability,
3350 beacon_interval, channel, rssi,
3352 &beacon->rates_el_id,
3353 subtype == IEEE80211_STYPE_BEACON);
3357 case IEEE80211_STYPE_AUTH:
3359 if (priv->station_state == STATION_STATE_AUTHENTICATING)
3360 authenticate(priv, frame_len);
3364 case IEEE80211_STYPE_ASSOC_RESP:
3365 case IEEE80211_STYPE_REASSOC_RESP:
3367 if (priv->station_state == STATION_STATE_ASSOCIATING ||
3368 priv->station_state == STATION_STATE_REASSOCIATING)
3369 associate(priv, frame_len, subtype);
3373 case IEEE80211_STYPE_DISASSOC:
3374 if (priv->station_is_associated &&
3375 priv->operating_mode == IW_MODE_INFRA &&
3376 is_frame_from_current_bss(priv, header)) {
3377 priv->station_was_associated = 0;
3378 priv->station_is_associated = 0;
3380 atmel_enter_state(priv, STATION_STATE_JOINNING);
3381 join(priv, BSS_TYPE_INFRASTRUCTURE);
3386 case IEEE80211_STYPE_DEAUTH:
3387 if (priv->operating_mode == IW_MODE_INFRA &&
3388 is_frame_from_current_bss(priv, header)) {
3389 priv->station_was_associated = 0;
3391 atmel_enter_state(priv, STATION_STATE_JOINNING);
3392 join(priv, BSS_TYPE_INFRASTRUCTURE);
3399 /* run when timer expires */
3400 static void atmel_management_timer(u_long a)
3402 struct net_device *dev = (struct net_device *) a;
3403 struct atmel_private *priv = netdev_priv(dev);
3404 unsigned long flags;
3406 /* Check if the card has been yanked. */
3407 if (priv->card && priv->present_callback &&
3408 !(*priv->present_callback)(priv->card))
3411 spin_lock_irqsave(&priv->irqlock, flags);
3413 switch (priv->station_state) {
3415 case STATION_STATE_AUTHENTICATING:
3416 if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) {
3417 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3418 priv->station_is_associated = 0;
3419 priv->AuthenticationRequestRetryCnt = 0;
3420 restart_search(priv);
3422 int auth = WLAN_AUTH_OPEN;
3423 priv->AuthenticationRequestRetryCnt++;
3424 priv->CurrentAuthentTransactionSeqNum = 0x0001;
3425 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3426 if (priv->wep_is_on && priv->exclude_unencrypted)
3427 auth = WLAN_AUTH_SHARED_KEY;
3428 send_authentication_request(priv, auth, NULL, 0);
3432 case STATION_STATE_ASSOCIATING:
3433 if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3434 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3435 priv->station_is_associated = 0;
3436 priv->AssociationRequestRetryCnt = 0;
3437 restart_search(priv);
3439 priv->AssociationRequestRetryCnt++;
3440 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3441 send_association_request(priv, 0);
3445 case STATION_STATE_REASSOCIATING:
3446 if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3447 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3448 priv->station_is_associated = 0;
3449 priv->ReAssociationRequestRetryCnt = 0;
3450 restart_search(priv);
3452 priv->ReAssociationRequestRetryCnt++;
3453 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3454 send_association_request(priv, 1);
3462 spin_unlock_irqrestore(&priv->irqlock, flags);
3465 static void atmel_command_irq(struct atmel_private *priv)
3467 u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
3468 u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET));
3470 union iwreq_data wrqu;
3472 if (status == CMD_STATUS_IDLE ||
3473 status == CMD_STATUS_IN_PROGRESS)
3479 if (status == CMD_STATUS_COMPLETE) {
3480 priv->station_was_associated = priv->station_is_associated;
3481 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
3482 (u8 *)priv->CurrentBSSID, 6);
3483 atmel_enter_state(priv, STATION_STATE_READY);
3488 fast_scan = priv->fast_scan;
3489 priv->fast_scan = 0;
3491 if (status != CMD_STATUS_COMPLETE) {
3492 atmel_scan(priv, 1);
3494 int bss_index = retrieve_bss(priv);
3495 int notify_scan_complete = 1;
3496 if (bss_index != -1) {
3497 atmel_join_bss(priv, bss_index);
3498 } else if (priv->operating_mode == IW_MODE_ADHOC &&
3499 priv->SSID_size != 0) {
3500 start(priv, BSS_TYPE_AD_HOC);
3502 priv->fast_scan = !fast_scan;
3503 atmel_scan(priv, 1);
3504 notify_scan_complete = 0;
3506 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3507 if (notify_scan_complete) {
3508 wrqu.data.length = 0;
3509 wrqu.data.flags = 0;
3510 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
3515 case CMD_SiteSurvey:
3516 priv->fast_scan = 0;
3518 if (status != CMD_STATUS_COMPLETE)
3521 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3522 if (priv->station_is_associated) {
3523 atmel_enter_state(priv, STATION_STATE_READY);
3524 wrqu.data.length = 0;
3525 wrqu.data.flags = 0;
3526 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
3528 atmel_scan(priv, 1);
3533 if (status == CMD_STATUS_COMPLETE) {
3534 if (priv->operating_mode == IW_MODE_ADHOC) {
3535 priv->station_was_associated = priv->station_is_associated;
3536 atmel_enter_state(priv, STATION_STATE_READY);
3538 int auth = WLAN_AUTH_OPEN;
3539 priv->AuthenticationRequestRetryCnt = 0;
3540 atmel_enter_state(priv, STATION_STATE_AUTHENTICATING);
3542 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3543 priv->CurrentAuthentTransactionSeqNum = 0x0001;
3544 if (priv->wep_is_on && priv->exclude_unencrypted)
3545 auth = WLAN_AUTH_SHARED_KEY;
3546 send_authentication_request(priv, auth, NULL, 0);
3551 atmel_scan(priv, 1);
3555 static int atmel_wakeup_firmware(struct atmel_private *priv)
3557 struct host_info_struct *iface = &priv->host_info;
3561 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3562 atmel_set_gcr(priv->dev, GCR_REMAP);
3564 /* wake up on-board processor */
3565 atmel_clear_gcr(priv->dev, 0x0040);
3566 atmel_write16(priv->dev, BSR, BSS_SRAM);
3568 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3571 /* and wait for it */
3572 for (i = LOOP_RETRY_LIMIT; i; i--) {
3573 mr1 = atmel_read16(priv->dev, MR1);
3574 mr3 = atmel_read16(priv->dev, MR3);
3576 if (mr3 & MAC_BOOT_COMPLETE)
3578 if (mr1 & MAC_BOOT_COMPLETE &&
3579 priv->bus_type == BUS_TYPE_PCCARD)
3584 printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name);
3588 if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) {
3589 printk(KERN_ALERT "%s: card missing.\n", priv->dev->name);
3593 /* now check for completion of MAC initialization through
3594 the FunCtrl field of the IFACE, poll MR1 to detect completion of
3595 MAC initialization, check completion status, set interrupt mask,
3596 enables interrupts and calls Tx and Rx initialization functions */
3598 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE);
3600 for (i = LOOP_RETRY_LIMIT; i; i--) {
3601 mr1 = atmel_read16(priv->dev, MR1);
3602 mr3 = atmel_read16(priv->dev, MR3);
3604 if (mr3 & MAC_INIT_COMPLETE)
3606 if (mr1 & MAC_INIT_COMPLETE &&
3607 priv->bus_type == BUS_TYPE_PCCARD)
3612 printk(KERN_ALERT "%s: MAC failed to initialise.\n",
3617 /* Check for MAC_INIT_OK only on the register that the MAC_INIT_OK was set */
3618 if ((mr3 & MAC_INIT_COMPLETE) &&
3619 !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) {
3620 printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name);
3623 if ((mr1 & MAC_INIT_COMPLETE) &&
3624 !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) {
3625 printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name);
3629 atmel_copy_to_host(priv->dev, (unsigned char *)iface,
3630 priv->host_info_base, sizeof(*iface));
3632 iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos);
3633 iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size);
3634 iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos);
3635 iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count);
3636 iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos);
3637 iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size);
3638 iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos);
3639 iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count);
3640 iface->build_version = le16_to_cpu(iface->build_version);
3641 iface->command_pos = le16_to_cpu(iface->command_pos);
3642 iface->major_version = le16_to_cpu(iface->major_version);
3643 iface->minor_version = le16_to_cpu(iface->minor_version);
3644 iface->func_ctrl = le16_to_cpu(iface->func_ctrl);
3645 iface->mac_status = le16_to_cpu(iface->mac_status);
3650 /* determine type of memory and MAC address */
3651 static int probe_atmel_card(struct net_device *dev)
3654 struct atmel_private *priv = netdev_priv(dev);
3657 if (priv->bus_type == BUS_TYPE_PCCARD)
3658 atmel_write16(dev, GCR, 0x0060);
3660 atmel_write16(dev, GCR, 0x0040);
3663 if (atmel_read16(dev, MR2) == 0) {
3664 /* No stored firmware so load a small stub which just
3665 tells us the MAC address */
3667 priv->card_type = CARD_TYPE_EEPROM;
3668 atmel_write16(dev, BSR, BSS_IRAM);
3669 atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader));
3670 atmel_set_gcr(dev, GCR_REMAP);
3671 atmel_clear_gcr(priv->dev, 0x0040);
3672 atmel_write16(dev, BSR, BSS_SRAM);
3673 for (i = LOOP_RETRY_LIMIT; i; i--)
3674 if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE)
3677 printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
3679 atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
3680 /* got address, now squash it again until the network
3681 interface is opened */
3682 if (priv->bus_type == BUS_TYPE_PCCARD)
3683 atmel_write16(dev, GCR, 0x0060);
3684 atmel_write16(dev, GCR, 0x0040);
3687 } else if (atmel_read16(dev, MR4) == 0) {
3688 /* Mac address easy in this case. */
3689 priv->card_type = CARD_TYPE_PARALLEL_FLASH;
3690 atmel_write16(dev, BSR, 1);
3691 atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
3692 atmel_write16(dev, BSR, 0x200);
3695 /* Standard firmware in flash, boot it up and ask
3696 for the Mac Address */
3697 priv->card_type = CARD_TYPE_SPI_FLASH;
3698 if (atmel_wakeup_firmware(priv) == 0) {
3699 atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
3701 /* got address, now squash it again until the network
3702 interface is opened */
3703 if (priv->bus_type == BUS_TYPE_PCCARD)
3704 atmel_write16(dev, GCR, 0x0060);
3705 atmel_write16(dev, GCR, 0x0040);
3711 if (dev->dev_addr[0] == 0xFF) {
3712 u8 default_mac[] = {0x00,0x04, 0x25, 0x00, 0x00, 0x00};
3713 printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
3714 memcpy(dev->dev_addr, default_mac, 6);
3721 /* Move the encyption information on the MIB structure.
3722 This routine is for the pre-WPA firmware: later firmware has
3723 a different format MIB and a different routine. */
3724 static void build_wep_mib(struct atmel_private *priv)
3726 struct { /* NB this is matched to the hardware, don't change. */
3728 u8 default_key; /* 0..3 */
3730 u8 exclude_unencrypted;
3732 u32 WEPICV_error_count;
3733 u32 WEP_excluded_count;
3735 u8 wep_keys[MAX_ENCRYPTION_KEYS][13];
3736 u8 encryption_level; /* 0, 1, 2 */
3741 mib.wep_is_on = priv->wep_is_on;
3742 if (priv->wep_is_on) {
3743 if (priv->wep_key_len[priv->default_key] > 5)
3744 mib.encryption_level = 2;
3746 mib.encryption_level = 1;
3748 mib.encryption_level = 0;
3751 mib.default_key = priv->default_key;
3752 mib.exclude_unencrypted = priv->exclude_unencrypted;
3754 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++)
3755 memcpy(mib.wep_keys[i], priv->wep_keys[i], 13);
3757 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3760 static void build_wpa_mib(struct atmel_private *priv)
3762 /* This is for the later (WPA enabled) firmware. */
3764 struct { /* NB this is matched to the hardware, don't change. */
3765 u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
3766 u8 receiver_address[6];
3768 u8 default_key; /* 0..3 */
3770 u8 exclude_unencrypted;
3774 u32 WEPICV_error_count;
3775 u32 WEP_excluded_count;
3782 mib.wep_is_on = priv->wep_is_on;
3783 mib.exclude_unencrypted = priv->exclude_unencrypted;
3784 memcpy(mib.receiver_address, priv->CurrentBSSID, 6);
3786 /* zero all the keys before adding in valid ones. */
3787 memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
3789 if (priv->wep_is_on) {
3790 /* There's a comment in the Atmel code to the effect that this
3791 is only valid when still using WEP, it may need to be set to
3792 something to use WPA */
3793 memset(mib.key_RSC, 0, sizeof(mib.key_RSC));
3795 mib.default_key = mib.group_key = 255;
3796 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) {
3797 if (priv->wep_key_len[i] > 0) {
3798 memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE);
3799 if (i == priv->default_key) {
3800 mib.default_key = i;
3801 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7;
3802 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite;
3805 priv->group_cipher_suite = priv->pairwise_cipher_suite;
3806 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1;
3807 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite;
3811 if (mib.default_key == 255)
3812 mib.default_key = mib.group_key != 255 ? mib.group_key : 0;
3813 if (mib.group_key == 255)
3814 mib.group_key = mib.default_key;
3818 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3821 static int reset_atmel_card(struct net_device *dev)
3823 /* do everything necessary to wake up the hardware, including
3824 waiting for the lightning strike and throwing the knife switch....
3826 set all the Mib values which matter in the card to match
3827 their settings in the atmel_private structure. Some of these
3828 can be altered on the fly, but many (WEP, infrastucture or ad-hoc)
3829 can only be changed by tearing down the world and coming back through
3832 This routine is also responsible for initialising some
3833 hardware-specific fields in the atmel_private structure,
3834 including a copy of the firmware's hostinfo stucture
3835 which is the route into the rest of the firmware datastructures. */
3837 struct atmel_private *priv = netdev_priv(dev);
3839 int old_state = priv->station_state;
3842 /* data to add to the firmware names, in priority order
3843 this implemenents firmware versioning */
3845 static char *firmware_modifier[] = {
3852 if (priv->bus_type == BUS_TYPE_PCCARD)
3853 atmel_write16(priv->dev, GCR, 0x0060);
3855 /* stop card , disable interrupts */
3856 atmel_write16(priv->dev, GCR, 0x0040);
3858 if (priv->card_type == CARD_TYPE_EEPROM) {
3859 /* copy in firmware if needed */
3860 const struct firmware *fw_entry = NULL;
3861 const unsigned char *fw;
3862 int len = priv->firmware_length;
3863 if (!(fw = priv->firmware)) {
3864 if (priv->firmware_type == ATMEL_FW_TYPE_NONE) {
3865 if (strlen(priv->firmware_id) == 0) {
3867 "%s: card type is unknown: assuming at76c502 firmware is OK.\n",
3870 "%s: if not, use the firmware= module parameter.\n",
3872 strcpy(priv->firmware_id, "atmel_at76c502.bin");
3874 err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev);
3877 "%s: firmware %s is missing, cannot continue.\n",
3878 dev->name, priv->firmware_id);
3885 /* get firmware filename entry based on firmware type ID */
3886 while (fw_table[fw_index].fw_type != priv->firmware_type
3887 && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE)
3890 /* construct the actual firmware file name */
3891 if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) {
3893 for (i = 0; firmware_modifier[i]; i++) {
3894 snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file,
3895 firmware_modifier[i], fw_table[fw_index].fw_file_ext);
3896 priv->firmware_id[31] = '\0';
3897 if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) {
3905 "%s: firmware %s is missing, cannot start.\n",
3906 dev->name, priv->firmware_id);
3907 priv->firmware_id[0] = '\0';
3912 fw = fw_entry->data;
3913 len = fw_entry->size;
3916 if (len <= 0x6000) {
3917 atmel_write16(priv->dev, BSR, BSS_IRAM);
3918 atmel_copy_to_card(priv->dev, 0, fw, len);
3919 atmel_set_gcr(priv->dev, GCR_REMAP);
3922 atmel_set_gcr(priv->dev, GCR_REMAP);
3923 atmel_write16(priv->dev, BSR, BSS_IRAM);
3924 atmel_copy_to_card(priv->dev, 0, fw, 0x6000);
3925 atmel_write16(priv->dev, BSR, 0x2ff);
3926 atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000);
3930 release_firmware(fw_entry);
3933 err = atmel_wakeup_firmware(priv);
3937 /* Check the version and set the correct flag for wpa stuff,
3938 old and new firmware is incompatible.
3939 The pre-wpa 3com firmware reports major version 5,
3940 the wpa 3com firmware is major version 4 and doesn't need
3941 the 3com broken-ness filter. */
3942 priv->use_wpa = (priv->host_info.major_version == 4);
3943 priv->radio_on_broken = (priv->host_info.major_version == 5);
3945 /* unmask all irq sources */
3946 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff);
3948 /* int Tx system and enable Tx */
3949 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0);
3950 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L);
3951 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0);
3952 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0);
3954 priv->tx_desc_free = priv->host_info.tx_desc_count;
3955 priv->tx_desc_head = 0;
3956 priv->tx_desc_tail = 0;
3957 priv->tx_desc_previous = 0;
3958 priv->tx_free_mem = priv->host_info.tx_buff_size;
3959 priv->tx_buff_head = 0;
3960 priv->tx_buff_tail = 0;
3962 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3963 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
3964 configuration | FUNC_CTRL_TxENABLE);
3966 /* init Rx system and enable */
3967 priv->rx_desc_head = 0;
3969 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3970 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
3971 configuration | FUNC_CTRL_RxENABLE);
3973 if (!priv->radio_on_broken) {
3974 if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) ==
3975 CMD_STATUS_REJECTED_RADIO_OFF) {
3976 printk(KERN_INFO "%s: cannot turn the radio on.\n",
3982 /* set up enough MIB values to run. */
3983 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate);
3984 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF);
3985 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold);
3986 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold);
3987 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry);
3988 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry);
3989 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble);
3990 atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS,
3991 priv->dev->dev_addr, 6);
3992 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3993 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3994 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period);
3995 atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4);
3996 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on);
3998 build_wpa_mib(priv);
4000 build_wep_mib(priv);
4002 if (old_state == STATION_STATE_READY)
4004 union iwreq_data wrqu;
4006 wrqu.data.length = 0;
4007 wrqu.data.flags = 0;
4008 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
4009 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
4010 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
4016 static void atmel_send_command(struct atmel_private *priv, int command,
4017 void *cmd, int cmd_size)
4020 atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET),
4023 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command);
4024 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0);
4027 static int atmel_send_command_wait(struct atmel_private *priv, int command,
4028 void *cmd, int cmd_size)
4032 atmel_send_command(priv, command, cmd, cmd_size);
4034 for (i = 5000; i; i--) {
4035 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
4036 if (status != CMD_STATUS_IDLE &&
4037 status != CMD_STATUS_IN_PROGRESS)
4043 printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name);
4044 status = CMD_STATUS_HOST_ERROR;
4046 if (command != CMD_EnableRadio)
4047 status = CMD_STATUS_COMPLETE;
4053 static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index)
4055 struct get_set_mib m;
4060 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4061 return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE));
4064 static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data)
4066 struct get_set_mib m;
4072 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4075 static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
4078 struct get_set_mib m;
4083 m.data[1] = data >> 8;
4085 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2);
4088 static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
4089 u8 *data, int data_len)
4091 struct get_set_mib m;
4096 if (data_len > MIB_MAX_DATA_BYTES)
4097 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4099 memcpy(m.data, data, data_len);
4100 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4103 static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
4104 u8 *data, int data_len)
4106 struct get_set_mib m;
4111 if (data_len > MIB_MAX_DATA_BYTES)
4112 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4114 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4115 atmel_copy_to_host(priv->dev, data,
4116 atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len);
4119 static void atmel_writeAR(struct net_device *dev, u16 data)
4122 outw(data, dev->base_addr + AR);
4123 /* Address register appears to need some convincing..... */
4124 for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++)
4125 outw(data, dev->base_addr + AR);
4128 static void atmel_copy_to_card(struct net_device *dev, u16 dest,
4129 const unsigned char *src, u16 len)
4132 atmel_writeAR(dev, dest);
4134 atmel_write8(dev, DR, *src);
4137 for (i = len; i > 1 ; i -= 2) {
4140 atmel_write16(dev, DR, lb | (hb << 8));
4143 atmel_write8(dev, DR, *src);
4146 static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
4150 atmel_writeAR(dev, src);
4152 *dest = atmel_read8(dev, DR);
4155 for (i = len; i > 1 ; i -= 2) {
4156 u16 hw = atmel_read16(dev, DR);
4161 *dest = atmel_read8(dev, DR);
4164 static void atmel_set_gcr(struct net_device *dev, u16 mask)
4166 outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR);
4169 static void atmel_clear_gcr(struct net_device *dev, u16 mask)
4171 outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR);
4174 static int atmel_lock_mac(struct atmel_private *priv)
4178 for (i = 5000; i; i--) {
4179 if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET)))
4185 return 0; /* timed out */
4187 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1);
4188 if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) {
4189 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
4191 return 0; /* timed out */
4198 static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data)
4200 atmel_writeAR(priv->dev, pos);
4201 atmel_write16(priv->dev, DR, data); /* card is little-endian */
4202 atmel_write16(priv->dev, DR, data >> 16);
4205 /***************************************************************************/
4206 /* There follows the source form of the MAC address reading firmware */
4207 /***************************************************************************/
4210 /* Copyright 2003 Matthew T. Russotto */
4211 /* But derived from the Atmel 76C502 firmware written by Atmel and */
4212 /* included in "atmel wireless lan drivers" package */
4214 This file is part of net.russotto.AtmelMACFW, hereto referred to
4217 AtmelMACFW is free software; you can redistribute it and/or modify
4218 it under the terms of the GNU General Public License version 2
4219 as published by the Free Software Foundation.
4221 AtmelMACFW is distributed in the hope that it will be useful,
4222 but WITHOUT ANY WARRANTY; without even the implied warranty of
4223 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4224 GNU General Public License for more details.
4226 You should have received a copy of the GNU General Public License
4227 along with AtmelMACFW; if not, write to the Free Software
4228 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
4230 ****************************************************************************/
4231 /* This firmware should work on the 76C502 RFMD, RFMD_D, and RFMD_E */
4232 /* It will probably work on the 76C504 and 76C502 RFMD_3COM */
4233 /* It only works on SPI EEPROM versions of the card. */
4235 /* This firmware initializes the SPI controller and clock, reads the MAC */
4236 /* address from the EEPROM into SRAM, and puts the SRAM offset of the MAC */
4237 /* address in MR2, and sets MR3 to 0x10 to indicate it is done */
4238 /* It also puts a complete copy of the EEPROM in SRAM with the offset in */
4239 /* MR4, for investigational purposes (maybe we can determine chip type */
4243 .set MRBASE, 0x8000000
4244 .set CPSR_INITIAL, 0xD3 /* IRQ/FIQ disabled, ARM mode, Supervisor state */
4245 .set CPSR_USER, 0xD1 /* IRQ/FIQ disabled, ARM mode, USER state */
4246 .set SRAM_BASE, 0x02000000
4247 .set SP_BASE, 0x0F300000
4248 .set UNK_BASE, 0x0F000000 /* Some internal device, but which one? */
4249 .set SPI_CGEN_BASE, 0x0E000000 /* Some internal device, but which one? */
4250 .set UNK3_BASE, 0x02014000 /* Some internal device, but which one? */
4251 .set STACK_BASE, 0x5600
4253 .set SP_TDRE, 2 /* status register bit -- TDR empty */
4254 .set SP_RDRF, 1 /* status register bit -- RDR full */
4257 .set SP_CR, 0 /* control register */
4258 .set SP_MR, 4 /* mode register */
4259 .set SP_RDR, 0x08 /* Read Data Register */
4260 .set SP_TDR, 0x0C /* Transmit Data Register */
4261 .set SP_CSR0, 0x30 /* chip select registers */
4265 .set NVRAM_CMD_RDSR, 5 /* read status register */
4266 .set NVRAM_CMD_READ, 3 /* read data */
4267 .set NVRAM_SR_RDY, 1 /* RDY bit. This bit is inverted */
4268 .set SPI_8CLOCKS, 0xFF /* Writing this to the TDR doesn't do anything to the
4269 serial output, since SO is normally high. But it
4270 does cause 8 clock cycles and thus 8 bits to be
4271 clocked in to the chip. See Atmel's SPI
4272 controller (e.g. AT91M55800) timing and 4K
4273 SPI EEPROM manuals */
4275 .set NVRAM_SCRATCH, 0x02000100 /* arbitrary area for scratchpad memory */
4276 .set NVRAM_IMAGE, 0x02000200
4277 .set NVRAM_LENGTH, 0x0200
4278 .set MAC_ADDRESS_MIB, SRAM_BASE
4279 .set MAC_ADDRESS_LENGTH, 6
4280 .set MAC_BOOT_FLAG, 0x10
4302 mov r0, #CPSR_INITIAL
4303 msr CPSR_c, r0 /* This is probably unnecessary */
4305 /* I'm guessing this is initializing clock generator electronics for SPI */
4306 ldr r0, =SPI_CGEN_BASE
4331 ldr r1, =MAC_ADDRESS_MIB
4333 ldr r1, =NVRAM_IMAGE
4335 mov r1, #MAC_BOOT_FLAG
4338 .func Get_Whole_NVRAM, GET_WHOLE_NVRAM
4341 mov r2, #0 /* 0th bytes of NVRAM */
4342 mov r3, #NVRAM_LENGTH
4343 mov r1, #0 /* not used in routine */
4344 ldr r0, =NVRAM_IMAGE
4350 .func Get_MAC_Addr, GET_MAC_ADDR
4353 mov r2, #0x120 /* address of MAC Address within NVRAM */
4354 mov r3, #MAC_ADDRESS_LENGTH
4355 mov r1, #0 /* not used in routine */
4356 ldr r0, =MAC_ADDRESS_MIB
4362 .func Delay9, DELAY9
4364 adds r0, r0, r0, LSL #3 /* r0 = r0 * 9 */
4373 .func SP_Init, SP_INIT
4377 str r1, [r0, #SP_CR] /* reset the SPI */
4379 str r1, [r0, #SP_CR] /* release SPI from reset state */
4381 str r1, [r0, #SP_MR] /* set the SPI to MASTER mode*/
4382 str r1, [r0, #SP_CR] /* enable the SPI */
4384 /* My guess would be this turns on the SPI clock */
4385 ldr r3, =SPI_CGEN_BASE
4391 str r1, [r0, #SP_CSR0]
4393 str r1, [r0, #SP_CSR1]
4394 str r1, [r0, #SP_CSR2]
4395 str r1, [r0, #SP_CSR3]
4396 ldr r1, [r0, #SP_SR]
4397 ldr r0, [r0, #SP_RDR]
4400 .func NVRAM_Init, NVRAM_INIT
4403 ldr r0, [r1, #SP_RDR]
4404 mov r0, #NVRAM_CMD_RDSR
4405 str r0, [r1, #SP_TDR]
4407 ldr r0, [r1, #SP_SR]
4411 mov r0, #SPI_8CLOCKS
4412 str r0, [r1, #SP_TDR]
4414 ldr r0, [r1, #SP_SR]
4418 ldr r0, [r1, #SP_RDR]
4420 ldr r0, [r1, #SP_SR]
4424 ldr r0, [r1, #SP_RDR]
4429 .func NVRAM_Xfer, NVRAM_XFER
4430 /* r0 = dest address */
4432 /* r2 = src address within NVRAM */
4435 stmdb sp!, {r4, r5, lr}
4436 mov r5, r0 /* save r0 (dest address) */
4437 mov r4, r3 /* save r3 (length) */
4438 mov r0, r2, LSR #5 /* SPI memories put A8 in the command field */
4440 add r0, r0, #NVRAM_CMD_READ
4441 ldr r1, =NVRAM_SCRATCH
4442 strb r0, [r1, #0] /* save command in NVRAM_SCRATCH[0] */
4443 strb r2, [r1, #1] /* save low byte of source address in NVRAM_SCRATCH[1] */
4446 tst r0, #NVRAM_SR_RDY
4450 mov r2, r4 /* length */
4451 mov r1, r5 /* dest address */
4452 mov r0, #2 /* bytes to transfer in command */
4454 ldmia sp!, {r4, r5, lr}
4458 .func NVRAM_Xfer2, NVRAM_XFER2
4460 stmdb sp!, {r4, r5, r6, lr}
4465 ldr r5, =NVRAM_SCRATCH
4468 str r6, [r4, #SP_TDR]
4470 ldr r6, [r4, #SP_SR]
4474 cmp r3, r0 /* r0 is # of bytes to send out (command+addr) */
4477 mov r3, #SPI_8CLOCKS
4478 str r3, [r4, #SP_TDR]
4479 ldr r0, [r4, #SP_RDR]
4481 ldr r0, [r4, #SP_SR]
4484 ldr r0, [r4, #SP_RDR] /* what's this byte? It's the byte read while writing the TDR -- nonsense, because the NVRAM doesn't read and write at the same time */
4486 cmp r2, #0 /* r2 is # of bytes to copy in */
4489 ldr r5, [r4, #SP_SR]
4492 str r3, [r4, #SP_TDR] /* r3 has SPI_8CLOCKS */
4494 ldr r5, [r4, #SP_SR]
4497 ldr r5, [r4, #SP_RDR] /* but didn't we read this byte above? */
4498 strb r5, [r1], #1 /* postindexed */
4501 blo _local7 /* since we don't send another address, the NVRAM must be capable of sequential reads */
4505 ldmia sp!, {r4, r5, r6, lr}
projects / linux-2.6 / blob