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42#include <linux/interrupt.h>
43
44#include <linux/kernel.h>
45#include <linux/ptrace.h>
46#include <linux/slab.h>
47#include <linux/string.h>
48#include <linux/timer.h>
49#include <asm/byteorder.h>
50#include <asm/io.h>
51#include <linux/uaccess.h>
52#include <linux/module.h>
53#include <linux/netdevice.h>
54#include <linux/etherdevice.h>
55#include <linux/skbuff.h>
56#include <linux/if_arp.h>
57#include <linux/ioport.h>
58#include <linux/fcntl.h>
59#include <linux/delay.h>
60#include <linux/wireless.h>
61#include <net/iw_handler.h>
62#include <linux/crc32.h>
63#include <linux/proc_fs.h>
64#include <linux/seq_file.h>
65#include <linux/device.h>
66#include <linux/moduleparam.h>
67#include <linux/firmware.h>
68#include <linux/jiffies.h>
69#include <net/cfg80211.h>
70#include "atmel.h"
71
72#define DRIVER_MAJOR 0
73#define DRIVER_MINOR 98
74
75MODULE_AUTHOR("Simon Kelley");
76MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
77MODULE_LICENSE("GPL");
78MODULE_SUPPORTED_DEVICE("Atmel at76c50x wireless cards");
79
80
81
82static char *firmware = NULL;
83module_param(firmware, charp, 0);
84
85
86static struct {
87 AtmelFWType fw_type;
88 const char *fw_file;
89 const char *fw_file_ext;
90} fw_table[] = {
91 { ATMEL_FW_TYPE_502, "atmel_at76c502", "bin" },
92 { ATMEL_FW_TYPE_502D, "atmel_at76c502d", "bin" },
93 { ATMEL_FW_TYPE_502E, "atmel_at76c502e", "bin" },
94 { ATMEL_FW_TYPE_502_3COM, "atmel_at76c502_3com", "bin" },
95 { ATMEL_FW_TYPE_504, "atmel_at76c504", "bin" },
96 { ATMEL_FW_TYPE_504_2958, "atmel_at76c504_2958", "bin" },
97 { ATMEL_FW_TYPE_504A_2958, "atmel_at76c504a_2958", "bin" },
98 { ATMEL_FW_TYPE_506, "atmel_at76c506", "bin" },
99 { ATMEL_FW_TYPE_NONE, NULL, NULL }
100};
101MODULE_FIRMWARE("atmel_at76c502-wpa.bin");
102MODULE_FIRMWARE("atmel_at76c502.bin");
103MODULE_FIRMWARE("atmel_at76c502d-wpa.bin");
104MODULE_FIRMWARE("atmel_at76c502d.bin");
105MODULE_FIRMWARE("atmel_at76c502e-wpa.bin");
106MODULE_FIRMWARE("atmel_at76c502e.bin");
107MODULE_FIRMWARE("atmel_at76c502_3com-wpa.bin");
108MODULE_FIRMWARE("atmel_at76c502_3com.bin");
109MODULE_FIRMWARE("atmel_at76c504-wpa.bin");
110MODULE_FIRMWARE("atmel_at76c504.bin");
111MODULE_FIRMWARE("atmel_at76c504_2958-wpa.bin");
112MODULE_FIRMWARE("atmel_at76c504_2958.bin");
113MODULE_FIRMWARE("atmel_at76c504a_2958-wpa.bin");
114MODULE_FIRMWARE("atmel_at76c504a_2958.bin");
115MODULE_FIRMWARE("atmel_at76c506-wpa.bin");
116MODULE_FIRMWARE("atmel_at76c506.bin");
117
118#define MAX_SSID_LENGTH 32
119#define MGMT_JIFFIES (256 * HZ / 100)
120
121#define MAX_BSS_ENTRIES 64
122
123
124#define GCR 0x00
125#define BSR 0x02
126#define AR 0x04
127#define DR 0x08
128#define MR1 0x12
129#define MR2 0x14
130#define MR3 0x16
131#define MR4 0x18
132
133#define GPR1 0x0c
134#define GPR2 0x0e
135#define GPR3 0x10
136
137
138
139#define GCR_REMAP 0x0400
140#define GCR_SWRES 0x0080
141#define GCR_CORES 0x0060
142#define GCR_ENINT 0x0002
143#define GCR_ACKINT 0x0008
144
145#define BSS_SRAM 0x0200
146#define BSS_IRAM 0x0100
147
148
149
150#define MAC_INIT_COMPLETE 0x0001
151#define MAC_BOOT_COMPLETE 0x0010
152#define MAC_INIT_OK 0x0002
153
154#define MIB_MAX_DATA_BYTES 212
155#define MIB_HEADER_SIZE 4
156
157struct get_set_mib {
158 u8 type;
159 u8 size;
160 u8 index;
161 u8 reserved;
162 u8 data[MIB_MAX_DATA_BYTES];
163};
164
165struct rx_desc {
166 u32 Next;
167 u16 MsduPos;
168 u16 MsduSize;
169
170 u8 State;
171 u8 Status;
172 u8 Rate;
173 u8 Rssi;
174 u8 LinkQuality;
175 u8 PreambleType;
176 u16 Duration;
177 u32 RxTime;
178};
179
180#define RX_DESC_FLAG_VALID 0x80
181#define RX_DESC_FLAG_CONSUMED 0x40
182#define RX_DESC_FLAG_IDLE 0x00
183
184#define RX_STATUS_SUCCESS 0x00
185
186#define RX_DESC_MSDU_POS_OFFSET 4
187#define RX_DESC_MSDU_SIZE_OFFSET 6
188#define RX_DESC_FLAGS_OFFSET 8
189#define RX_DESC_STATUS_OFFSET 9
190#define RX_DESC_RSSI_OFFSET 11
191#define RX_DESC_LINK_QUALITY_OFFSET 12
192#define RX_DESC_PREAMBLE_TYPE_OFFSET 13
193#define RX_DESC_DURATION_OFFSET 14
194#define RX_DESC_RX_TIME_OFFSET 16
195
196struct tx_desc {
197 u32 NextDescriptor;
198 u16 TxStartOfFrame;
199 u16 TxLength;
200
201 u8 TxState;
202 u8 TxStatus;
203 u8 RetryCount;
204
205 u8 TxRate;
206
207 u8 KeyIndex;
208 u8 ChiperType;
209 u8 ChipreLength;
210 u8 Reserved1;
211
212 u8 Reserved;
213 u8 PacketType;
214 u16 HostTxLength;
215};
216
217#define TX_DESC_NEXT_OFFSET 0
218#define TX_DESC_POS_OFFSET 4
219#define TX_DESC_SIZE_OFFSET 6
220#define TX_DESC_FLAGS_OFFSET 8
221#define TX_DESC_STATUS_OFFSET 9
222#define TX_DESC_RETRY_OFFSET 10
223#define TX_DESC_RATE_OFFSET 11
224#define TX_DESC_KEY_INDEX_OFFSET 12
225#define TX_DESC_CIPHER_TYPE_OFFSET 13
226#define TX_DESC_CIPHER_LENGTH_OFFSET 14
227#define TX_DESC_PACKET_TYPE_OFFSET 17
228#define TX_DESC_HOST_LENGTH_OFFSET 18
229
230
231
232
233
234#define TX_STATUS_SUCCESS 0x00
235
236#define TX_FIRM_OWN 0x80
237#define TX_DONE 0x40
238
239#define TX_ERROR 0x01
240
241#define TX_PACKET_TYPE_DATA 0x01
242#define TX_PACKET_TYPE_MGMT 0x02
243
244#define ISR_EMPTY 0x00
245#define ISR_TxCOMPLETE 0x01
246#define ISR_RxCOMPLETE 0x02
247#define ISR_RxFRAMELOST 0x04
248#define ISR_FATAL_ERROR 0x08
249#define ISR_COMMAND_COMPLETE 0x10
250#define ISR_OUT_OF_RANGE 0x20
251#define ISR_IBSS_MERGE 0x40
252#define ISR_GENERIC_IRQ 0x80
253
254#define Local_Mib_Type 0x01
255#define Mac_Address_Mib_Type 0x02
256#define Mac_Mib_Type 0x03
257#define Statistics_Mib_Type 0x04
258#define Mac_Mgmt_Mib_Type 0x05
259#define Mac_Wep_Mib_Type 0x06
260#define Phy_Mib_Type 0x07
261#define Multi_Domain_MIB 0x08
262
263#define MAC_MGMT_MIB_CUR_BSSID_POS 14
264#define MAC_MIB_FRAG_THRESHOLD_POS 8
265#define MAC_MIB_RTS_THRESHOLD_POS 10
266#define MAC_MIB_SHORT_RETRY_POS 16
267#define MAC_MIB_LONG_RETRY_POS 17
268#define MAC_MIB_SHORT_RETRY_LIMIT_POS 16
269#define MAC_MGMT_MIB_BEACON_PER_POS 0
270#define MAC_MGMT_MIB_STATION_ID_POS 6
271#define MAC_MGMT_MIB_CUR_PRIVACY_POS 11
272#define MAC_MGMT_MIB_CUR_BSSID_POS 14
273#define MAC_MGMT_MIB_PS_MODE_POS 53
274#define MAC_MGMT_MIB_LISTEN_INTERVAL_POS 54
275#define MAC_MGMT_MIB_MULTI_DOMAIN_IMPLEMENTED 56
276#define MAC_MGMT_MIB_MULTI_DOMAIN_ENABLED 57
277#define PHY_MIB_CHANNEL_POS 14
278#define PHY_MIB_RATE_SET_POS 20
279#define PHY_MIB_REG_DOMAIN_POS 26
280#define LOCAL_MIB_AUTO_TX_RATE_POS 3
281#define LOCAL_MIB_SSID_SIZE 5
282#define LOCAL_MIB_TX_PROMISCUOUS_POS 6
283#define LOCAL_MIB_TX_MGMT_RATE_POS 7
284#define LOCAL_MIB_TX_CONTROL_RATE_POS 8
285#define LOCAL_MIB_PREAMBLE_TYPE 9
286#define MAC_ADDR_MIB_MAC_ADDR_POS 0
287
288#define CMD_Set_MIB_Vars 0x01
289#define CMD_Get_MIB_Vars 0x02
290#define CMD_Scan 0x03
291#define CMD_Join 0x04
292#define CMD_Start 0x05
293#define CMD_EnableRadio 0x06
294#define CMD_DisableRadio 0x07
295#define CMD_SiteSurvey 0x0B
296
297#define CMD_STATUS_IDLE 0x00
298#define CMD_STATUS_COMPLETE 0x01
299#define CMD_STATUS_UNKNOWN 0x02
300#define CMD_STATUS_INVALID_PARAMETER 0x03
301#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
302#define CMD_STATUS_TIME_OUT 0x07
303#define CMD_STATUS_IN_PROGRESS 0x08
304#define CMD_STATUS_REJECTED_RADIO_OFF 0x09
305#define CMD_STATUS_HOST_ERROR 0xFF
306#define CMD_STATUS_BUSY 0xFE
307
308#define CMD_BLOCK_COMMAND_OFFSET 0
309#define CMD_BLOCK_STATUS_OFFSET 1
310#define CMD_BLOCK_PARAMETERS_OFFSET 4
311
312#define SCAN_OPTIONS_SITE_SURVEY 0x80
313
314#define MGMT_FRAME_BODY_OFFSET 24
315#define MAX_AUTHENTICATION_RETRIES 3
316#define MAX_ASSOCIATION_RETRIES 3
317
318#define AUTHENTICATION_RESPONSE_TIME_OUT 1000
319
320#define MAX_WIRELESS_BODY 2316
321#define LOOP_RETRY_LIMIT 500000
322
323#define ACTIVE_MODE 1
324#define PS_MODE 2
325
326#define MAX_ENCRYPTION_KEYS 4
327#define MAX_ENCRYPTION_KEY_SIZE 40
328
329
330
331
332
333
334
335
336
337#define REG_DOMAIN_FCC 0x10
338#define REG_DOMAIN_DOC 0x20
339#define REG_DOMAIN_ETSI 0x30
340#define REG_DOMAIN_SPAIN 0x31
341#define REG_DOMAIN_FRANCE 0x32
342#define REG_DOMAIN_MKK 0x40
343#define REG_DOMAIN_MKK1 0x41
344#define REG_DOMAIN_ISRAEL 0x50
345
346#define BSS_TYPE_AD_HOC 1
347#define BSS_TYPE_INFRASTRUCTURE 2
348
349#define SCAN_TYPE_ACTIVE 0
350#define SCAN_TYPE_PASSIVE 1
351
352#define LONG_PREAMBLE 0
353#define SHORT_PREAMBLE 1
354#define AUTO_PREAMBLE 2
355
356#define DATA_FRAME_WS_HEADER_SIZE 30
357
358
359#define PROM_MODE_OFF 0x0
360#define PROM_MODE_UNKNOWN 0x1
361#define PROM_MODE_CRC_FAILED 0x2
362#define PROM_MODE_DUPLICATED 0x4
363#define PROM_MODE_MGMT 0x8
364#define PROM_MODE_CTRL 0x10
365#define PROM_MODE_BAD_PROTOCOL 0x20
366
367#define IFACE_INT_STATUS_OFFSET 0
368#define IFACE_INT_MASK_OFFSET 1
369#define IFACE_LOCKOUT_HOST_OFFSET 2
370#define IFACE_LOCKOUT_MAC_OFFSET 3
371#define IFACE_FUNC_CTRL_OFFSET 28
372#define IFACE_MAC_STAT_OFFSET 30
373#define IFACE_GENERIC_INT_TYPE_OFFSET 32
374
375#define CIPHER_SUITE_NONE 0
376#define CIPHER_SUITE_WEP_64 1
377#define CIPHER_SUITE_TKIP 2
378#define CIPHER_SUITE_AES 3
379#define CIPHER_SUITE_CCX 4
380#define CIPHER_SUITE_WEP_128 5
381
382
383
384
385
386
387
388
389#define FUNC_CTRL_TxENABLE 0x10
390#define FUNC_CTRL_RxENABLE 0x20
391#define FUNC_CTRL_INIT_COMPLETE 0x01
392
393
394
395static u8 mac_reader[] = {
396 0x06, 0x00, 0x00, 0xea, 0x04, 0x00, 0x00, 0xea, 0x03, 0x00, 0x00, 0xea, 0x02, 0x00, 0x00, 0xea,
397 0x01, 0x00, 0x00, 0xea, 0x00, 0x00, 0x00, 0xea, 0xff, 0xff, 0xff, 0xea, 0xfe, 0xff, 0xff, 0xea,
398 0xd3, 0x00, 0xa0, 0xe3, 0x00, 0xf0, 0x21, 0xe1, 0x0e, 0x04, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
399 0x81, 0x11, 0xa0, 0xe1, 0x00, 0x10, 0x81, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x1c, 0x10, 0x90, 0xe5,
400 0x10, 0x10, 0xc1, 0xe3, 0x1c, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3, 0x08, 0x10, 0x80, 0xe5,
401 0x02, 0x03, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3, 0xb0, 0x10, 0xc0, 0xe1, 0xb4, 0x10, 0xc0, 0xe1,
402 0xb8, 0x10, 0xc0, 0xe1, 0xbc, 0x10, 0xc0, 0xe1, 0x56, 0xdc, 0xa0, 0xe3, 0x21, 0x00, 0x00, 0xeb,
403 0x0a, 0x00, 0xa0, 0xe3, 0x1a, 0x00, 0x00, 0xeb, 0x10, 0x00, 0x00, 0xeb, 0x07, 0x00, 0x00, 0xeb,
404 0x02, 0x03, 0xa0, 0xe3, 0x02, 0x14, 0xa0, 0xe3, 0xb4, 0x10, 0xc0, 0xe1, 0x4c, 0x10, 0x9f, 0xe5,
405 0xbc, 0x10, 0xc0, 0xe1, 0x10, 0x10, 0xa0, 0xe3, 0xb8, 0x10, 0xc0, 0xe1, 0xfe, 0xff, 0xff, 0xea,
406 0x00, 0x40, 0x2d, 0xe9, 0x00, 0x20, 0xa0, 0xe3, 0x02, 0x3c, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
407 0x28, 0x00, 0x9f, 0xe5, 0x37, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1,
408 0x00, 0x40, 0x2d, 0xe9, 0x12, 0x2e, 0xa0, 0xe3, 0x06, 0x30, 0xa0, 0xe3, 0x00, 0x10, 0xa0, 0xe3,
409 0x02, 0x04, 0xa0, 0xe3, 0x2f, 0x00, 0x00, 0xeb, 0x00, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1,
410 0x00, 0x02, 0x00, 0x02, 0x80, 0x01, 0x90, 0xe0, 0x01, 0x00, 0x00, 0x0a, 0x01, 0x00, 0x50, 0xe2,
411 0xfc, 0xff, 0xff, 0xea, 0x1e, 0xff, 0x2f, 0xe1, 0x80, 0x10, 0xa0, 0xe3, 0xf3, 0x06, 0xa0, 0xe3,
412 0x00, 0x10, 0x80, 0xe5, 0x00, 0x10, 0xa0, 0xe3, 0x00, 0x10, 0x80, 0xe5, 0x01, 0x10, 0xa0, 0xe3,
413 0x04, 0x10, 0x80, 0xe5, 0x00, 0x10, 0x80, 0xe5, 0x0e, 0x34, 0xa0, 0xe3, 0x1c, 0x10, 0x93, 0xe5,
414 0x02, 0x1a, 0x81, 0xe3, 0x1c, 0x10, 0x83, 0xe5, 0x58, 0x11, 0x9f, 0xe5, 0x30, 0x10, 0x80, 0xe5,
415 0x54, 0x11, 0x9f, 0xe5, 0x34, 0x10, 0x80, 0xe5, 0x38, 0x10, 0x80, 0xe5, 0x3c, 0x10, 0x80, 0xe5,
416 0x10, 0x10, 0x90, 0xe5, 0x08, 0x00, 0x90, 0xe5, 0x1e, 0xff, 0x2f, 0xe1, 0xf3, 0x16, 0xa0, 0xe3,
417 0x08, 0x00, 0x91, 0xe5, 0x05, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5, 0x10, 0x00, 0x91, 0xe5,
418 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0xff, 0x00, 0xa0, 0xe3, 0x0c, 0x00, 0x81, 0xe5,
419 0x10, 0x00, 0x91, 0xe5, 0x02, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5,
420 0x10, 0x00, 0x91, 0xe5, 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x91, 0xe5,
421 0xff, 0x00, 0x00, 0xe2, 0x1e, 0xff, 0x2f, 0xe1, 0x30, 0x40, 0x2d, 0xe9, 0x00, 0x50, 0xa0, 0xe1,
422 0x03, 0x40, 0xa0, 0xe1, 0xa2, 0x02, 0xa0, 0xe1, 0x08, 0x00, 0x00, 0xe2, 0x03, 0x00, 0x80, 0xe2,
423 0xd8, 0x10, 0x9f, 0xe5, 0x00, 0x00, 0xc1, 0xe5, 0x01, 0x20, 0xc1, 0xe5, 0xe2, 0xff, 0xff, 0xeb,
424 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x1a, 0x14, 0x00, 0xa0, 0xe3, 0xc4, 0xff, 0xff, 0xeb,
425 0x04, 0x20, 0xa0, 0xe1, 0x05, 0x10, 0xa0, 0xe1, 0x02, 0x00, 0xa0, 0xe3, 0x01, 0x00, 0x00, 0xeb,
426 0x30, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x70, 0x40, 0x2d, 0xe9, 0xf3, 0x46, 0xa0, 0xe3,
427 0x00, 0x30, 0xa0, 0xe3, 0x00, 0x00, 0x50, 0xe3, 0x08, 0x00, 0x00, 0x9a, 0x8c, 0x50, 0x9f, 0xe5,
428 0x03, 0x60, 0xd5, 0xe7, 0x0c, 0x60, 0x84, 0xe5, 0x10, 0x60, 0x94, 0xe5, 0x02, 0x00, 0x16, 0xe3,
429 0xfc, 0xff, 0xff, 0x0a, 0x01, 0x30, 0x83, 0xe2, 0x00, 0x00, 0x53, 0xe1, 0xf7, 0xff, 0xff, 0x3a,
430 0xff, 0x30, 0xa0, 0xe3, 0x0c, 0x30, 0x84, 0xe5, 0x08, 0x00, 0x94, 0xe5, 0x10, 0x00, 0x94, 0xe5,
431 0x01, 0x00, 0x10, 0xe3, 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x00, 0x94, 0xe5, 0x00, 0x00, 0xa0, 0xe3,
432 0x00, 0x00, 0x52, 0xe3, 0x0b, 0x00, 0x00, 0x9a, 0x10, 0x50, 0x94, 0xe5, 0x02, 0x00, 0x15, 0xe3,
433 0xfc, 0xff, 0xff, 0x0a, 0x0c, 0x30, 0x84, 0xe5, 0x10, 0x50, 0x94, 0xe5, 0x01, 0x00, 0x15, 0xe3,
434 0xfc, 0xff, 0xff, 0x0a, 0x08, 0x50, 0x94, 0xe5, 0x01, 0x50, 0xc1, 0xe4, 0x01, 0x00, 0x80, 0xe2,
435 0x02, 0x00, 0x50, 0xe1, 0xf3, 0xff, 0xff, 0x3a, 0xc8, 0x00, 0xa0, 0xe3, 0x98, 0xff, 0xff, 0xeb,
436 0x70, 0x40, 0xbd, 0xe8, 0x1e, 0xff, 0x2f, 0xe1, 0x01, 0x0c, 0x00, 0x02, 0x01, 0x02, 0x00, 0x02,
437 0x00, 0x01, 0x00, 0x02
438};
439
440struct atmel_private {
441 void *card;
442 int (*present_callback)(void *);
443 char firmware_id[32];
444 AtmelFWType firmware_type;
445 u8 *firmware;
446 int firmware_length;
447 struct timer_list management_timer;
448 struct net_device *dev;
449 struct device *sys_dev;
450 struct iw_statistics wstats;
451 spinlock_t irqlock, timerlock;
452 enum { BUS_TYPE_PCCARD, BUS_TYPE_PCI } bus_type;
453 enum {
454 CARD_TYPE_PARALLEL_FLASH,
455 CARD_TYPE_SPI_FLASH,
456 CARD_TYPE_EEPROM
457 } card_type;
458 int do_rx_crc;
459 int probe_crc;
460 int crc_ok_cnt, crc_ko_cnt;
461 u16 rx_desc_head;
462 u16 tx_desc_free, tx_desc_head, tx_desc_tail, tx_desc_previous;
463 u16 tx_free_mem, tx_buff_head, tx_buff_tail;
464
465 u16 frag_seq, frag_len, frag_no;
466 u8 frag_source[6];
467
468 u8 wep_is_on, default_key, exclude_unencrypted, encryption_level;
469 u8 group_cipher_suite, pairwise_cipher_suite;
470 u8 wep_keys[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
471 int wep_key_len[MAX_ENCRYPTION_KEYS];
472 int use_wpa, radio_on_broken;
473
474 u16 host_info_base;
475 struct host_info_struct {
476
477 u8 volatile int_status;
478 u8 volatile int_mask;
479 u8 volatile lockout_host;
480 u8 volatile lockout_mac;
481
482 u16 tx_buff_pos;
483 u16 tx_buff_size;
484 u16 tx_desc_pos;
485 u16 tx_desc_count;
486
487 u16 rx_buff_pos;
488 u16 rx_buff_size;
489 u16 rx_desc_pos;
490 u16 rx_desc_count;
491
492 u16 build_version;
493 u16 command_pos;
494
495 u16 major_version;
496 u16 minor_version;
497
498 u16 func_ctrl;
499 u16 mac_status;
500 u16 generic_IRQ_type;
501 u8 reserved[2];
502 } host_info;
503
504 enum {
505 STATION_STATE_SCANNING,
506 STATION_STATE_JOINNING,
507 STATION_STATE_AUTHENTICATING,
508 STATION_STATE_ASSOCIATING,
509 STATION_STATE_READY,
510 STATION_STATE_REASSOCIATING,
511 STATION_STATE_DOWN,
512 STATION_STATE_MGMT_ERROR
513 } station_state;
514
515 int operating_mode, power_mode;
516 unsigned long last_qual;
517 int beacons_this_sec;
518 int channel;
519 int reg_domain, config_reg_domain;
520 int tx_rate;
521 int auto_tx_rate;
522 int rts_threshold;
523 int frag_threshold;
524 int long_retry, short_retry;
525 int preamble;
526 int default_beacon_period, beacon_period, listen_interval;
527 int CurrentAuthentTransactionSeqNum, ExpectedAuthentTransactionSeqNum;
528 int AuthenticationRequestRetryCnt, AssociationRequestRetryCnt, ReAssociationRequestRetryCnt;
529 enum {
530 SITE_SURVEY_IDLE,
531 SITE_SURVEY_IN_PROGRESS,
532 SITE_SURVEY_COMPLETED
533 } site_survey_state;
534 unsigned long last_survey;
535
536 int station_was_associated, station_is_associated;
537 int fast_scan;
538
539 struct bss_info {
540 int channel;
541 int SSIDsize;
542 int RSSI;
543 int UsingWEP;
544 int preamble;
545 int beacon_period;
546 int BSStype;
547 u8 BSSID[6];
548 u8 SSID[MAX_SSID_LENGTH];
549 } BSSinfo[MAX_BSS_ENTRIES];
550 int BSS_list_entries, current_BSS;
551 int connect_to_any_BSS;
552 int SSID_size, new_SSID_size;
553 u8 CurrentBSSID[6], BSSID[6];
554 u8 SSID[MAX_SSID_LENGTH], new_SSID[MAX_SSID_LENGTH];
555 u64 last_beacon_timestamp;
556 u8 rx_buf[MAX_WIRELESS_BODY];
557};
558
559static u8 atmel_basic_rates[4] = {0x82, 0x84, 0x0b, 0x16};
560
561static const struct {
562 int reg_domain;
563 int min, max;
564 char *name;
565} channel_table[] = { { REG_DOMAIN_FCC, 1, 11, "USA" },
566 { REG_DOMAIN_DOC, 1, 11, "Canada" },
567 { REG_DOMAIN_ETSI, 1, 13, "Europe" },
568 { REG_DOMAIN_SPAIN, 10, 11, "Spain" },
569 { REG_DOMAIN_FRANCE, 10, 13, "France" },
570 { REG_DOMAIN_MKK, 14, 14, "MKK" },
571 { REG_DOMAIN_MKK1, 1, 14, "MKK1" },
572 { REG_DOMAIN_ISRAEL, 3, 9, "Israel"} };
573
574static void build_wpa_mib(struct atmel_private *priv);
575static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
576static void atmel_copy_to_card(struct net_device *dev, u16 dest,
577 const unsigned char *src, u16 len);
578static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
579 u16 src, u16 len);
580static void atmel_set_gcr(struct net_device *dev, u16 mask);
581static void atmel_clear_gcr(struct net_device *dev, u16 mask);
582static int atmel_lock_mac(struct atmel_private *priv);
583static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data);
584static void atmel_command_irq(struct atmel_private *priv);
585static int atmel_validate_channel(struct atmel_private *priv, int channel);
586static void atmel_management_frame(struct atmel_private *priv,
587 struct ieee80211_hdr *header,
588 u16 frame_len, u8 rssi);
589static void atmel_management_timer(struct timer_list *t);
590static void atmel_send_command(struct atmel_private *priv, int command,
591 void *cmd, int cmd_size);
592static int atmel_send_command_wait(struct atmel_private *priv, int command,
593 void *cmd, int cmd_size);
594static void atmel_transmit_management_frame(struct atmel_private *priv,
595 struct ieee80211_hdr *header,
596 u8 *body, int body_len);
597
598static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index);
599static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index,
600 u8 data);
601static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
602 u16 data);
603static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
604 u8 *data, int data_len);
605static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
606 u8 *data, int data_len);
607static void atmel_scan(struct atmel_private *priv, int specific_ssid);
608static void atmel_join_bss(struct atmel_private *priv, int bss_index);
609static void atmel_smooth_qual(struct atmel_private *priv);
610static void atmel_writeAR(struct net_device *dev, u16 data);
611static int probe_atmel_card(struct net_device *dev);
612static int reset_atmel_card(struct net_device *dev);
613static void atmel_enter_state(struct atmel_private *priv, int new_state);
614int atmel_open (struct net_device *dev);
615
616static inline u16 atmel_hi(struct atmel_private *priv, u16 offset)
617{
618 return priv->host_info_base + offset;
619}
620
621static inline u16 atmel_co(struct atmel_private *priv, u16 offset)
622{
623 return priv->host_info.command_pos + offset;
624}
625
626static inline u16 atmel_rx(struct atmel_private *priv, u16 offset, u16 desc)
627{
628 return priv->host_info.rx_desc_pos + (sizeof(struct rx_desc) * desc) + offset;
629}
630
631static inline u16 atmel_tx(struct atmel_private *priv, u16 offset, u16 desc)
632{
633 return priv->host_info.tx_desc_pos + (sizeof(struct tx_desc) * desc) + offset;
634}
635
636static inline u8 atmel_read8(struct net_device *dev, u16 offset)
637{
638 return inb(dev->base_addr + offset);
639}
640
641static inline void atmel_write8(struct net_device *dev, u16 offset, u8 data)
642{
643 outb(data, dev->base_addr + offset);
644}
645
646static inline u16 atmel_read16(struct net_device *dev, u16 offset)
647{
648 return inw(dev->base_addr + offset);
649}
650
651static inline void atmel_write16(struct net_device *dev, u16 offset, u16 data)
652{
653 outw(data, dev->base_addr + offset);
654}
655
656static inline u8 atmel_rmem8(struct atmel_private *priv, u16 pos)
657{
658 atmel_writeAR(priv->dev, pos);
659 return atmel_read8(priv->dev, DR);
660}
661
662static inline void atmel_wmem8(struct atmel_private *priv, u16 pos, u16 data)
663{
664 atmel_writeAR(priv->dev, pos);
665 atmel_write8(priv->dev, DR, data);
666}
667
668static inline u16 atmel_rmem16(struct atmel_private *priv, u16 pos)
669{
670 atmel_writeAR(priv->dev, pos);
671 return atmel_read16(priv->dev, DR);
672}
673
674static inline void atmel_wmem16(struct atmel_private *priv, u16 pos, u16 data)
675{
676 atmel_writeAR(priv->dev, pos);
677 atmel_write16(priv->dev, DR, data);
678}
679
680static const struct iw_handler_def atmel_handler_def;
681
682static void tx_done_irq(struct atmel_private *priv)
683{
684 int i;
685
686 for (i = 0;
687 atmel_rmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head)) == TX_DONE &&
688 i < priv->host_info.tx_desc_count;
689 i++) {
690 u8 status = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_STATUS_OFFSET, priv->tx_desc_head));
691 u16 msdu_size = atmel_rmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_head));
692 u8 type = atmel_rmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_head));
693
694 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_head), 0);
695
696 priv->tx_free_mem += msdu_size;
697 priv->tx_desc_free++;
698
699 if (priv->tx_buff_head + msdu_size > (priv->host_info.tx_buff_pos + priv->host_info.tx_buff_size))
700 priv->tx_buff_head = 0;
701 else
702 priv->tx_buff_head += msdu_size;
703
704 if (priv->tx_desc_head < (priv->host_info.tx_desc_count - 1))
705 priv->tx_desc_head++ ;
706 else
707 priv->tx_desc_head = 0;
708
709 if (type == TX_PACKET_TYPE_DATA) {
710 if (status == TX_STATUS_SUCCESS)
711 priv->dev->stats.tx_packets++;
712 else
713 priv->dev->stats.tx_errors++;
714 netif_wake_queue(priv->dev);
715 }
716 }
717}
718
719static u16 find_tx_buff(struct atmel_private *priv, u16 len)
720{
721 u16 bottom_free = priv->host_info.tx_buff_size - priv->tx_buff_tail;
722
723 if (priv->tx_desc_free == 3 || priv->tx_free_mem < len)
724 return 0;
725
726 if (bottom_free >= len)
727 return priv->host_info.tx_buff_pos + priv->tx_buff_tail;
728
729 if (priv->tx_free_mem - bottom_free >= len) {
730 priv->tx_buff_tail = 0;
731 return priv->host_info.tx_buff_pos;
732 }
733
734 return 0;
735}
736
737static void tx_update_descriptor(struct atmel_private *priv, int is_bcast,
738 u16 len, u16 buff, u8 type)
739{
740 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, priv->tx_desc_tail), buff);
741 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, priv->tx_desc_tail), len);
742 if (!priv->use_wpa)
743 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_HOST_LENGTH_OFFSET, priv->tx_desc_tail), len);
744 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_PACKET_TYPE_OFFSET, priv->tx_desc_tail), type);
745 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RATE_OFFSET, priv->tx_desc_tail), priv->tx_rate);
746 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_RETRY_OFFSET, priv->tx_desc_tail), 0);
747 if (priv->use_wpa) {
748 int cipher_type, cipher_length;
749 if (is_bcast) {
750 cipher_type = priv->group_cipher_suite;
751 if (cipher_type == CIPHER_SUITE_WEP_64 ||
752 cipher_type == CIPHER_SUITE_WEP_128)
753 cipher_length = 8;
754 else if (cipher_type == CIPHER_SUITE_TKIP)
755 cipher_length = 12;
756 else if (priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_64 ||
757 priv->pairwise_cipher_suite == CIPHER_SUITE_WEP_128) {
758 cipher_type = priv->pairwise_cipher_suite;
759 cipher_length = 8;
760 } else {
761 cipher_type = CIPHER_SUITE_NONE;
762 cipher_length = 0;
763 }
764 } else {
765 cipher_type = priv->pairwise_cipher_suite;
766 if (cipher_type == CIPHER_SUITE_WEP_64 ||
767 cipher_type == CIPHER_SUITE_WEP_128)
768 cipher_length = 8;
769 else if (cipher_type == CIPHER_SUITE_TKIP)
770 cipher_length = 12;
771 else if (priv->group_cipher_suite == CIPHER_SUITE_WEP_64 ||
772 priv->group_cipher_suite == CIPHER_SUITE_WEP_128) {
773 cipher_type = priv->group_cipher_suite;
774 cipher_length = 8;
775 } else {
776 cipher_type = CIPHER_SUITE_NONE;
777 cipher_length = 0;
778 }
779 }
780
781 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_TYPE_OFFSET, priv->tx_desc_tail),
782 cipher_type);
783 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_CIPHER_LENGTH_OFFSET, priv->tx_desc_tail),
784 cipher_length);
785 }
786 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_tail), 0x80000000L);
787 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, priv->tx_desc_tail), TX_FIRM_OWN);
788 if (priv->tx_desc_previous != priv->tx_desc_tail)
789 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, priv->tx_desc_previous), 0);
790 priv->tx_desc_previous = priv->tx_desc_tail;
791 if (priv->tx_desc_tail < (priv->host_info.tx_desc_count - 1))
792 priv->tx_desc_tail++;
793 else
794 priv->tx_desc_tail = 0;
795 priv->tx_desc_free--;
796 priv->tx_free_mem -= len;
797}
798
799static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
800{
801 static const u8 SNAP_RFC1024[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
802 struct atmel_private *priv = netdev_priv(dev);
803 struct ieee80211_hdr header;
804 unsigned long flags;
805 u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
806
807 if (priv->card && priv->present_callback &&
808 !(*priv->present_callback)(priv->card)) {
809 dev->stats.tx_errors++;
810 dev_kfree_skb(skb);
811 return NETDEV_TX_OK;
812 }
813
814 if (priv->station_state != STATION_STATE_READY) {
815 dev->stats.tx_errors++;
816 dev_kfree_skb(skb);
817 return NETDEV_TX_OK;
818 }
819
820
821 spin_lock_bh(&priv->timerlock);
822
823 spin_lock_irqsave(&priv->irqlock, flags);
824
825
826
827
828
829
830
831 if (!(buff = find_tx_buff(priv, len + 18))) {
832 dev->stats.tx_dropped++;
833 spin_unlock_irqrestore(&priv->irqlock, flags);
834 spin_unlock_bh(&priv->timerlock);
835 netif_stop_queue(dev);
836 return NETDEV_TX_BUSY;
837 }
838
839 frame_ctl = IEEE80211_FTYPE_DATA;
840 header.duration_id = 0;
841 header.seq_ctrl = 0;
842 if (priv->wep_is_on)
843 frame_ctl |= IEEE80211_FCTL_PROTECTED;
844 if (priv->operating_mode == IW_MODE_ADHOC) {
845 skb_copy_from_linear_data(skb, &header.addr1, ETH_ALEN);
846 memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
847 memcpy(&header.addr3, priv->BSSID, ETH_ALEN);
848 } else {
849 frame_ctl |= IEEE80211_FCTL_TODS;
850 memcpy(&header.addr1, priv->CurrentBSSID, ETH_ALEN);
851 memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
852 skb_copy_from_linear_data(skb, &header.addr3, ETH_ALEN);
853 }
854
855 if (priv->use_wpa)
856 memcpy(&header.addr4, SNAP_RFC1024, ETH_ALEN);
857
858 header.frame_control = cpu_to_le16(frame_ctl);
859
860 atmel_copy_to_card(dev, buff, (unsigned char *)&header, DATA_FRAME_WS_HEADER_SIZE);
861
862 atmel_copy_to_card(dev, buff + DATA_FRAME_WS_HEADER_SIZE, skb->data + 12, len - 12);
863 priv->tx_buff_tail += len - 12 + DATA_FRAME_WS_HEADER_SIZE;
864
865
866 tx_update_descriptor(priv, *(skb->data) & 0x01, len + 18, buff, TX_PACKET_TYPE_DATA);
867 dev->stats.tx_bytes += len;
868
869 spin_unlock_irqrestore(&priv->irqlock, flags);
870 spin_unlock_bh(&priv->timerlock);
871 dev_kfree_skb(skb);
872
873 return NETDEV_TX_OK;
874}
875
876static void atmel_transmit_management_frame(struct atmel_private *priv,
877 struct ieee80211_hdr *header,
878 u8 *body, int body_len)
879{
880 u16 buff;
881 int len = MGMT_FRAME_BODY_OFFSET + body_len;
882
883 if (!(buff = find_tx_buff(priv, len)))
884 return;
885
886 atmel_copy_to_card(priv->dev, buff, (u8 *)header, MGMT_FRAME_BODY_OFFSET);
887 atmel_copy_to_card(priv->dev, buff + MGMT_FRAME_BODY_OFFSET, body, body_len);
888 priv->tx_buff_tail += len;
889 tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT);
890}
891
892static void fast_rx_path(struct atmel_private *priv,
893 struct ieee80211_hdr *header,
894 u16 msdu_size, u16 rx_packet_loc, u32 crc)
895{
896
897 u8 mac4[6];
898 struct sk_buff *skb;
899 unsigned char *skbp;
900
901
902 atmel_copy_to_host(priv->dev, mac4, rx_packet_loc + 24, 6);
903 msdu_size -= 6;
904
905 if (priv->do_rx_crc) {
906 crc = crc32_le(crc, mac4, 6);
907 msdu_size -= 4;
908 }
909
910 if (!(skb = dev_alloc_skb(msdu_size + 14))) {
911 priv->dev->stats.rx_dropped++;
912 return;
913 }
914
915 skb_reserve(skb, 2);
916 skbp = skb_put(skb, msdu_size + 12);
917 atmel_copy_to_host(priv->dev, skbp + 12, rx_packet_loc + 30, msdu_size);
918
919 if (priv->do_rx_crc) {
920 u32 netcrc;
921 crc = crc32_le(crc, skbp + 12, msdu_size);
922 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + 30 + msdu_size, 4);
923 if ((crc ^ 0xffffffff) != netcrc) {
924 priv->dev->stats.rx_crc_errors++;
925 dev_kfree_skb(skb);
926 return;
927 }
928 }
929
930 memcpy(skbp, header->addr1, ETH_ALEN);
931 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
932 memcpy(&skbp[ETH_ALEN], header->addr3, ETH_ALEN);
933 else
934 memcpy(&skbp[ETH_ALEN], header->addr2, ETH_ALEN);
935
936 skb->protocol = eth_type_trans(skb, priv->dev);
937 skb->ip_summed = CHECKSUM_NONE;
938 netif_rx(skb);
939 priv->dev->stats.rx_bytes += 12 + msdu_size;
940 priv->dev->stats.rx_packets++;
941}
942
943
944
945
946static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size)
947{
948 int i = msdu_size - 4;
949 u32 netcrc, crc = 0xffffffff;
950
951 if (msdu_size < 4)
952 return 0;
953
954 atmel_copy_to_host(priv->dev, (void *)&netcrc, packet_loc + i, 4);
955
956 atmel_writeAR(priv->dev, packet_loc);
957 while (i--) {
958 u8 octet = atmel_read8(priv->dev, DR);
959 crc = crc32_le(crc, &octet, 1);
960 }
961
962 return (crc ^ 0xffffffff) == netcrc;
963}
964
965static void frag_rx_path(struct atmel_private *priv,
966 struct ieee80211_hdr *header,
967 u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
968 u8 frag_no, int more_frags)
969{
970 u8 mac4[ETH_ALEN];
971 u8 source[ETH_ALEN];
972 struct sk_buff *skb;
973
974 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
975 memcpy(source, header->addr3, ETH_ALEN);
976 else
977 memcpy(source, header->addr2, ETH_ALEN);
978
979 rx_packet_loc += 24;
980
981 if (priv->do_rx_crc)
982 msdu_size -= 4;
983
984 if (frag_no == 0) {
985 atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, ETH_ALEN);
986 msdu_size -= ETH_ALEN;
987 rx_packet_loc += ETH_ALEN;
988
989 if (priv->do_rx_crc)
990 crc = crc32_le(crc, mac4, 6);
991
992 priv->frag_seq = seq_no;
993 priv->frag_no = 1;
994 priv->frag_len = msdu_size;
995 memcpy(priv->frag_source, source, ETH_ALEN);
996 memcpy(&priv->rx_buf[ETH_ALEN], source, ETH_ALEN);
997 memcpy(priv->rx_buf, header->addr1, ETH_ALEN);
998
999 atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
1000
1001 if (priv->do_rx_crc) {
1002 u32 netcrc;
1003 crc = crc32_le(crc, &priv->rx_buf[12], msdu_size);
1004 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
1005 if ((crc ^ 0xffffffff) != netcrc) {
1006 priv->dev->stats.rx_crc_errors++;
1007 eth_broadcast_addr(priv->frag_source);
1008 }
1009 }
1010
1011 } else if (priv->frag_no == frag_no &&
1012 priv->frag_seq == seq_no &&
1013 memcmp(priv->frag_source, source, ETH_ALEN) == 0) {
1014
1015 atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
1016 rx_packet_loc, msdu_size);
1017 if (priv->do_rx_crc) {
1018 u32 netcrc;
1019 crc = crc32_le(crc,
1020 &priv->rx_buf[12 + priv->frag_len],
1021 msdu_size);
1022 atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
1023 if ((crc ^ 0xffffffff) != netcrc) {
1024 priv->dev->stats.rx_crc_errors++;
1025 eth_broadcast_addr(priv->frag_source);
1026 more_frags = 1;
1027 }
1028 }
1029
1030 priv->frag_len += msdu_size;
1031 priv->frag_no++;
1032
1033 if (!more_frags) {
1034 eth_broadcast_addr(priv->frag_source);
1035 if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
1036 priv->dev->stats.rx_dropped++;
1037 } else {
1038 skb_reserve(skb, 2);
1039 skb_put_data(skb, priv->rx_buf,
1040 priv->frag_len + 12);
1041 skb->protocol = eth_type_trans(skb, priv->dev);
1042 skb->ip_summed = CHECKSUM_NONE;
1043 netif_rx(skb);
1044 priv->dev->stats.rx_bytes += priv->frag_len + 12;
1045 priv->dev->stats.rx_packets++;
1046 }
1047 }
1048 } else
1049 priv->wstats.discard.fragment++;
1050}
1051
1052static void rx_done_irq(struct atmel_private *priv)
1053{
1054 int i;
1055 struct ieee80211_hdr header;
1056
1057 for (i = 0;
1058 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID &&
1059 i < priv->host_info.rx_desc_count;
1060 i++) {
1061
1062 u16 msdu_size, rx_packet_loc, frame_ctl, seq_control;
1063 u8 status = atmel_rmem8(priv, atmel_rx(priv, RX_DESC_STATUS_OFFSET, priv->rx_desc_head));
1064 u32 crc = 0xffffffff;
1065
1066 if (status != RX_STATUS_SUCCESS) {
1067 if (status == 0xc1)
1068 priv->wstats.discard.nwid++;
1069 else
1070 priv->dev->stats.rx_errors++;
1071 goto next;
1072 }
1073
1074 msdu_size = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_SIZE_OFFSET, priv->rx_desc_head));
1075 rx_packet_loc = atmel_rmem16(priv, atmel_rx(priv, RX_DESC_MSDU_POS_OFFSET, priv->rx_desc_head));
1076
1077 if (msdu_size < 30) {
1078 priv->dev->stats.rx_errors++;
1079 goto next;
1080 }
1081
1082
1083 atmel_copy_to_host(priv->dev, (char *)&header, rx_packet_loc, 24);
1084 frame_ctl = le16_to_cpu(header.frame_control);
1085 seq_control = le16_to_cpu(header.seq_ctrl);
1086
1087
1088
1089
1090 if (priv->probe_crc) {
1091 if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED)) {
1092 priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size);
1093 } else {
1094 priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24);
1095 }
1096 if (priv->do_rx_crc) {
1097 if (priv->crc_ok_cnt++ > 5)
1098 priv->probe_crc = 0;
1099 } else {
1100 if (priv->crc_ko_cnt++ > 5)
1101 priv->probe_crc = 0;
1102 }
1103 }
1104
1105
1106 if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_PROTECTED))) {
1107 crc = crc32_le(0xffffffff, (unsigned char *)&header, 24);
1108 }
1109 msdu_size -= 24;
1110
1111 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
1112 int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS;
1113 u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG;
1114 u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4;
1115
1116 if (!more_fragments && packet_fragment_no == 0) {
1117 fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc);
1118 } else {
1119 frag_rx_path(priv, &header, msdu_size, rx_packet_loc, crc,
1120 packet_sequence_no, packet_fragment_no, more_fragments);
1121 }
1122 }
1123
1124 if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
1125
1126 atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
1127
1128
1129 eth_broadcast_addr(priv->frag_source);
1130
1131 if (priv->do_rx_crc) {
1132
1133 msdu_size -= 4;
1134 crc = crc32_le(crc, (unsigned char *)&priv->rx_buf, msdu_size);
1135 if ((crc ^ 0xffffffff) != (*((u32 *)&priv->rx_buf[msdu_size]))) {
1136 priv->dev->stats.rx_crc_errors++;
1137 goto next;
1138 }
1139 }
1140
1141 atmel_management_frame(priv, &header, msdu_size,
1142 atmel_rmem8(priv, atmel_rx(priv, RX_DESC_RSSI_OFFSET, priv->rx_desc_head)));
1143 }
1144
1145next:
1146
1147 atmel_wmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head), RX_DESC_FLAG_CONSUMED);
1148
1149 if (priv->rx_desc_head < (priv->host_info.rx_desc_count - 1))
1150 priv->rx_desc_head++;
1151 else
1152 priv->rx_desc_head = 0;
1153 }
1154}
1155
1156static irqreturn_t service_interrupt(int irq, void *dev_id)
1157{
1158 struct net_device *dev = (struct net_device *) dev_id;
1159 struct atmel_private *priv = netdev_priv(dev);
1160 u8 isr;
1161 int i = -1;
1162 static const u8 irq_order[] = {
1163 ISR_OUT_OF_RANGE,
1164 ISR_RxCOMPLETE,
1165 ISR_TxCOMPLETE,
1166 ISR_RxFRAMELOST,
1167 ISR_FATAL_ERROR,
1168 ISR_COMMAND_COMPLETE,
1169 ISR_IBSS_MERGE,
1170 ISR_GENERIC_IRQ
1171 };
1172
1173 if (priv->card && priv->present_callback &&
1174 !(*priv->present_callback)(priv->card))
1175 return IRQ_HANDLED;
1176
1177
1178
1179
1180
1181
1182 if (priv->station_state == STATION_STATE_DOWN)
1183 return IRQ_NONE;
1184
1185 atmel_clear_gcr(dev, GCR_ENINT);
1186
1187 while (1) {
1188 if (!atmel_lock_mac(priv)) {
1189
1190 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1191 return IRQ_HANDLED;
1192 }
1193
1194 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1195 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
1196
1197 if (!isr) {
1198 atmel_set_gcr(dev, GCR_ENINT);
1199 return i == -1 ? IRQ_NONE : IRQ_HANDLED;
1200 }
1201
1202 atmel_set_gcr(dev, GCR_ACKINT);
1203
1204 for (i = 0; i < ARRAY_SIZE(irq_order); i++)
1205 if (isr & irq_order[i])
1206 break;
1207
1208 if (!atmel_lock_mac(priv)) {
1209
1210 printk(KERN_ALERT "%s: failed to contact MAC.\n", dev->name);
1211 return IRQ_HANDLED;
1212 }
1213
1214 isr = atmel_rmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET));
1215 isr ^= irq_order[i];
1216 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_STATUS_OFFSET), isr);
1217 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
1218
1219 switch (irq_order[i]) {
1220
1221 case ISR_OUT_OF_RANGE:
1222 if (priv->operating_mode == IW_MODE_INFRA &&
1223 priv->station_state == STATION_STATE_READY) {
1224 priv->station_is_associated = 0;
1225 atmel_scan(priv, 1);
1226 }
1227 break;
1228
1229 case ISR_RxFRAMELOST:
1230 priv->wstats.discard.misc++;
1231
1232 case ISR_RxCOMPLETE:
1233 rx_done_irq(priv);
1234 break;
1235
1236 case ISR_TxCOMPLETE:
1237 tx_done_irq(priv);
1238 break;
1239
1240 case ISR_FATAL_ERROR:
1241 printk(KERN_ALERT "%s: *** FATAL error interrupt ***\n", dev->name);
1242 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
1243 break;
1244
1245 case ISR_COMMAND_COMPLETE:
1246 atmel_command_irq(priv);
1247 break;
1248
1249 case ISR_IBSS_MERGE:
1250 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
1251 priv->CurrentBSSID, 6);
1252
1253 if (priv->use_wpa)
1254 build_wpa_mib(priv);
1255 break;
1256 case ISR_GENERIC_IRQ:
1257 printk(KERN_INFO "%s: Generic_irq received.\n", dev->name);
1258 break;
1259 }
1260 }
1261}
1262
1263static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev)
1264{
1265 struct atmel_private *priv = netdev_priv(dev);
1266
1267
1268
1269 atmel_smooth_qual(priv);
1270
1271 priv->wstats.status = priv->station_state;
1272
1273 if (priv->operating_mode == IW_MODE_INFRA) {
1274 if (priv->station_state != STATION_STATE_READY) {
1275 priv->wstats.qual.qual = 0;
1276 priv->wstats.qual.level = 0;
1277 priv->wstats.qual.updated = (IW_QUAL_QUAL_INVALID
1278 | IW_QUAL_LEVEL_INVALID);
1279 }
1280 priv->wstats.qual.noise = 0;
1281 priv->wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1282 } else {
1283
1284
1285 priv->wstats.qual.qual = 0;
1286 priv->wstats.qual.level = 0;
1287 priv->wstats.qual.noise = 0;
1288 priv->wstats.qual.updated = IW_QUAL_QUAL_INVALID
1289 | IW_QUAL_LEVEL_INVALID
1290 | IW_QUAL_NOISE_INVALID;
1291 priv->wstats.miss.beacon = 0;
1292 }
1293
1294 return &priv->wstats;
1295}
1296
1297static int atmel_set_mac_address(struct net_device *dev, void *p)
1298{
1299 struct sockaddr *addr = p;
1300
1301 memcpy (dev->dev_addr, addr->sa_data, dev->addr_len);
1302 return atmel_open(dev);
1303}
1304
1305EXPORT_SYMBOL(atmel_open);
1306
1307int atmel_open(struct net_device *dev)
1308{
1309 struct atmel_private *priv = netdev_priv(dev);
1310 int i, channel, err;
1311
1312
1313 del_timer_sync(&priv->management_timer);
1314
1315
1316 priv->station_state = STATION_STATE_DOWN;
1317
1318 if (priv->new_SSID_size) {
1319 memcpy(priv->SSID, priv->new_SSID, priv->new_SSID_size);
1320 priv->SSID_size = priv->new_SSID_size;
1321 priv->new_SSID_size = 0;
1322 }
1323 priv->BSS_list_entries = 0;
1324
1325 priv->AuthenticationRequestRetryCnt = 0;
1326 priv->AssociationRequestRetryCnt = 0;
1327 priv->ReAssociationRequestRetryCnt = 0;
1328 priv->CurrentAuthentTransactionSeqNum = 0x0001;
1329 priv->ExpectedAuthentTransactionSeqNum = 0x0002;
1330
1331 priv->site_survey_state = SITE_SURVEY_IDLE;
1332 priv->station_is_associated = 0;
1333
1334 err = reset_atmel_card(dev);
1335 if (err)
1336 return err;
1337
1338 if (priv->config_reg_domain) {
1339 priv->reg_domain = priv->config_reg_domain;
1340 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS, priv->reg_domain);
1341 } else {
1342 priv->reg_domain = atmel_get_mib8(priv, Phy_Mib_Type, PHY_MIB_REG_DOMAIN_POS);
1343 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1344 if (priv->reg_domain == channel_table[i].reg_domain)
1345 break;
1346 if (i == ARRAY_SIZE(channel_table)) {
1347 priv->reg_domain = REG_DOMAIN_MKK1;
1348 printk(KERN_ALERT "%s: failed to get regulatory domain: assuming MKK1.\n", dev->name);
1349 }
1350 }
1351
1352 if ((channel = atmel_validate_channel(priv, priv->channel)))
1353 priv->channel = channel;
1354
1355
1356 atmel_scan(priv, 1);
1357
1358 atmel_set_gcr(priv->dev, GCR_ENINT);
1359 return 0;
1360}
1361
1362static int atmel_close(struct net_device *dev)
1363{
1364 struct atmel_private *priv = netdev_priv(dev);
1365
1366
1367 if (priv->station_state == STATION_STATE_READY) {
1368 union iwreq_data wrqu;
1369
1370 wrqu.data.length = 0;
1371 wrqu.data.flags = 0;
1372 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1373 eth_zero_addr(wrqu.ap_addr.sa_data);
1374 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1375 }
1376
1377 atmel_enter_state(priv, STATION_STATE_DOWN);
1378
1379 if (priv->bus_type == BUS_TYPE_PCCARD)
1380 atmel_write16(dev, GCR, 0x0060);
1381 atmel_write16(dev, GCR, 0x0040);
1382 return 0;
1383}
1384
1385static int atmel_validate_channel(struct atmel_private *priv, int channel)
1386{
1387
1388
1389 int i;
1390
1391 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1392 if (priv->reg_domain == channel_table[i].reg_domain) {
1393 if (channel >= channel_table[i].min &&
1394 channel <= channel_table[i].max)
1395 return 0;
1396 else
1397 return channel_table[i].min;
1398 }
1399 return 0;
1400}
1401
1402static int atmel_proc_show(struct seq_file *m, void *v)
1403{
1404 struct atmel_private *priv = m->private;
1405 int i;
1406 char *s, *r, *c;
1407
1408 seq_printf(m, "Driver version:\t\t%d.%d\n", DRIVER_MAJOR, DRIVER_MINOR);
1409
1410 if (priv->station_state != STATION_STATE_DOWN) {
1411 seq_printf(m,
1412 "Firmware version:\t%d.%d build %d\n"
1413 "Firmware location:\t",
1414 priv->host_info.major_version,
1415 priv->host_info.minor_version,
1416 priv->host_info.build_version);
1417
1418 if (priv->card_type != CARD_TYPE_EEPROM)
1419 seq_puts(m, "on card\n");
1420 else if (priv->firmware)
1421 seq_printf(m, "%s loaded by host\n", priv->firmware_id);
1422 else
1423 seq_printf(m, "%s loaded by hotplug\n", priv->firmware_id);
1424
1425 switch (priv->card_type) {
1426 case CARD_TYPE_PARALLEL_FLASH:
1427 c = "Parallel flash";
1428 break;
1429 case CARD_TYPE_SPI_FLASH:
1430 c = "SPI flash\n";
1431 break;
1432 case CARD_TYPE_EEPROM:
1433 c = "EEPROM";
1434 break;
1435 default:
1436 c = "<unknown>";
1437 }
1438
1439 r = "<unknown>";
1440 for (i = 0; i < ARRAY_SIZE(channel_table); i++)
1441 if (priv->reg_domain == channel_table[i].reg_domain)
1442 r = channel_table[i].name;
1443
1444 seq_printf(m, "MAC memory type:\t%s\n", c);
1445 seq_printf(m, "Regulatory domain:\t%s\n", r);
1446 seq_printf(m, "Host CRC checking:\t%s\n",
1447 priv->do_rx_crc ? "On" : "Off");
1448 seq_printf(m, "WPA-capable firmware:\t%s\n",
1449 priv->use_wpa ? "Yes" : "No");
1450 }
1451
1452 switch (priv->station_state) {
1453 case STATION_STATE_SCANNING:
1454 s = "Scanning";
1455 break;
1456 case STATION_STATE_JOINNING:
1457 s = "Joining";
1458 break;
1459 case STATION_STATE_AUTHENTICATING:
1460 s = "Authenticating";
1461 break;
1462 case STATION_STATE_ASSOCIATING:
1463 s = "Associating";
1464 break;
1465 case STATION_STATE_READY:
1466 s = "Ready";
1467 break;
1468 case STATION_STATE_REASSOCIATING:
1469 s = "Reassociating";
1470 break;
1471 case STATION_STATE_MGMT_ERROR:
1472 s = "Management error";
1473 break;
1474 case STATION_STATE_DOWN:
1475 s = "Down";
1476 break;
1477 default:
1478 s = "<unknown>";
1479 }
1480
1481 seq_printf(m, "Current state:\t\t%s\n", s);
1482 return 0;
1483}
1484
1485static const struct net_device_ops atmel_netdev_ops = {
1486 .ndo_open = atmel_open,
1487 .ndo_stop = atmel_close,
1488 .ndo_set_mac_address = atmel_set_mac_address,
1489 .ndo_start_xmit = start_tx,
1490 .ndo_do_ioctl = atmel_ioctl,
1491 .ndo_validate_addr = eth_validate_addr,
1492};
1493
1494struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
1495 const AtmelFWType fw_type,
1496 struct device *sys_dev,
1497 int (*card_present)(void *), void *card)
1498{
1499 struct net_device *dev;
1500 struct atmel_private *priv;
1501 int rc;
1502
1503
1504 dev = alloc_etherdev(sizeof(*priv));
1505 if (!dev)
1506 return NULL;
1507
1508 if (dev_alloc_name(dev, dev->name) < 0) {
1509 printk(KERN_ERR "atmel: Couldn't get name!\n");
1510 goto err_out_free;
1511 }
1512
1513 priv = netdev_priv(dev);
1514 priv->dev = dev;
1515 priv->sys_dev = sys_dev;
1516 priv->present_callback = card_present;
1517 priv->card = card;
1518 priv->firmware = NULL;
1519 priv->firmware_id[0] = '\0';
1520 priv->firmware_type = fw_type;
1521 if (firmware)
1522 strcpy(priv->firmware_id, firmware);
1523 priv->bus_type = card_present ? BUS_TYPE_PCCARD : BUS_TYPE_PCI;
1524 priv->station_state = STATION_STATE_DOWN;
1525 priv->do_rx_crc = 0;
1526
1527
1528 if (priv->bus_type == BUS_TYPE_PCCARD) {
1529 priv->probe_crc = 1;
1530 priv->crc_ok_cnt = priv->crc_ko_cnt = 0;
1531 } else
1532 priv->probe_crc = 0;
1533 priv->last_qual = jiffies;
1534 priv->last_beacon_timestamp = 0;
1535 memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
1536 eth_zero_addr(priv->BSSID);
1537 priv->CurrentBSSID[0] = 0xFF;
1538 priv->station_was_associated = 0;
1539
1540 priv->last_survey = jiffies;
1541 priv->preamble = LONG_PREAMBLE;
1542 priv->operating_mode = IW_MODE_INFRA;
1543 priv->connect_to_any_BSS = 0;
1544 priv->config_reg_domain = 0;
1545 priv->reg_domain = 0;
1546 priv->tx_rate = 3;
1547 priv->auto_tx_rate = 1;
1548 priv->channel = 4;
1549 priv->power_mode = 0;
1550 priv->SSID[0] = '\0';
1551 priv->SSID_size = 0;
1552 priv->new_SSID_size = 0;
1553 priv->frag_threshold = 2346;
1554 priv->rts_threshold = 2347;
1555 priv->short_retry = 7;
1556 priv->long_retry = 4;
1557
1558 priv->wep_is_on = 0;
1559 priv->default_key = 0;
1560 priv->encryption_level = 0;
1561 priv->exclude_unencrypted = 0;
1562 priv->group_cipher_suite = priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1563 priv->use_wpa = 0;
1564 memset(priv->wep_keys, 0, sizeof(priv->wep_keys));
1565 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
1566
1567 priv->default_beacon_period = priv->beacon_period = 100;
1568 priv->listen_interval = 1;
1569
1570 timer_setup(&priv->management_timer, atmel_management_timer, 0);
1571 spin_lock_init(&priv->irqlock);
1572 spin_lock_init(&priv->timerlock);
1573
1574 dev->netdev_ops = &atmel_netdev_ops;
1575 dev->wireless_handlers = &atmel_handler_def;
1576 dev->irq = irq;
1577 dev->base_addr = port;
1578
1579
1580 dev->min_mtu = 68;
1581 dev->max_mtu = MAX_WIRELESS_BODY - ETH_FCS_LEN;
1582
1583 SET_NETDEV_DEV(dev, sys_dev);
1584
1585 if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) {
1586 printk(KERN_ERR "%s: register interrupt %d failed, rc %d\n", dev->name, irq, rc);
1587 goto err_out_free;
1588 }
1589
1590 if (!request_region(dev->base_addr, 32,
1591 priv->bus_type == BUS_TYPE_PCCARD ? "atmel_cs" : "atmel_pci")) {
1592 goto err_out_irq;
1593 }
1594
1595 if (register_netdev(dev))
1596 goto err_out_res;
1597
1598 if (!probe_atmel_card(dev)) {
1599 unregister_netdev(dev);
1600 goto err_out_res;
1601 }
1602
1603 netif_carrier_off(dev);
1604
1605 if (!proc_create_single_data("driver/atmel", 0, NULL, atmel_proc_show,
1606 priv))
1607 printk(KERN_WARNING "atmel: unable to create /proc entry.\n");
1608
1609 printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n",
1610 dev->name, DRIVER_MAJOR, DRIVER_MINOR, dev->dev_addr);
1611
1612 return dev;
1613
1614err_out_res:
1615 release_region(dev->base_addr, 32);
1616err_out_irq:
1617 free_irq(dev->irq, dev);
1618err_out_free:
1619 free_netdev(dev);
1620 return NULL;
1621}
1622
1623EXPORT_SYMBOL(init_atmel_card);
1624
1625void stop_atmel_card(struct net_device *dev)
1626{
1627 struct atmel_private *priv = netdev_priv(dev);
1628
1629
1630 if (priv->bus_type == BUS_TYPE_PCCARD)
1631 atmel_write16(dev, GCR, 0x0060);
1632 atmel_write16(dev, GCR, 0x0040);
1633
1634 del_timer_sync(&priv->management_timer);
1635 unregister_netdev(dev);
1636 remove_proc_entry("driver/atmel", NULL);
1637 free_irq(dev->irq, dev);
1638 kfree(priv->firmware);
1639 release_region(dev->base_addr, 32);
1640 free_netdev(dev);
1641}
1642
1643EXPORT_SYMBOL(stop_atmel_card);
1644
1645static int atmel_set_essid(struct net_device *dev,
1646 struct iw_request_info *info,
1647 struct iw_point *dwrq,
1648 char *extra)
1649{
1650 struct atmel_private *priv = netdev_priv(dev);
1651
1652
1653 if (dwrq->flags == 0) {
1654 priv->connect_to_any_BSS = 1;
1655 } else {
1656 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1657
1658 priv->connect_to_any_BSS = 0;
1659
1660
1661 if (dwrq->length > MAX_SSID_LENGTH)
1662 return -E2BIG;
1663 if (index != 0)
1664 return -EINVAL;
1665
1666 memcpy(priv->new_SSID, extra, dwrq->length);
1667 priv->new_SSID_size = dwrq->length;
1668 }
1669
1670 return -EINPROGRESS;
1671}
1672
1673static int atmel_get_essid(struct net_device *dev,
1674 struct iw_request_info *info,
1675 struct iw_point *dwrq,
1676 char *extra)
1677{
1678 struct atmel_private *priv = netdev_priv(dev);
1679
1680
1681 if (priv->new_SSID_size != 0) {
1682 memcpy(extra, priv->new_SSID, priv->new_SSID_size);
1683 dwrq->length = priv->new_SSID_size;
1684 } else {
1685 memcpy(extra, priv->SSID, priv->SSID_size);
1686 dwrq->length = priv->SSID_size;
1687 }
1688
1689 dwrq->flags = !priv->connect_to_any_BSS;
1690
1691 return 0;
1692}
1693
1694static int atmel_get_wap(struct net_device *dev,
1695 struct iw_request_info *info,
1696 struct sockaddr *awrq,
1697 char *extra)
1698{
1699 struct atmel_private *priv = netdev_priv(dev);
1700 memcpy(awrq->sa_data, priv->CurrentBSSID, ETH_ALEN);
1701 awrq->sa_family = ARPHRD_ETHER;
1702
1703 return 0;
1704}
1705
1706static int atmel_set_encode(struct net_device *dev,
1707 struct iw_request_info *info,
1708 struct iw_point *dwrq,
1709 char *extra)
1710{
1711 struct atmel_private *priv = netdev_priv(dev);
1712
1713
1714
1715
1716
1717
1718
1719 if (dwrq->length > 0) {
1720 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1721 int current_index = priv->default_key;
1722
1723 if (dwrq->length > 13) {
1724 return -EINVAL;
1725 }
1726
1727 if (index < 0 || index >= 4)
1728 index = current_index;
1729 else
1730 priv->default_key = index;
1731
1732 if (dwrq->length > 5)
1733 priv->wep_key_len[index] = 13;
1734 else
1735 if (dwrq->length > 0)
1736 priv->wep_key_len[index] = 5;
1737 else
1738
1739 priv->wep_key_len[index] = 0;
1740
1741 if (!(dwrq->flags & IW_ENCODE_NOKEY)) {
1742
1743 memset(priv->wep_keys[index], 0, 13);
1744
1745 memcpy(priv->wep_keys[index], extra, dwrq->length);
1746 }
1747
1748
1749
1750 if (index == current_index &&
1751 priv->wep_key_len[index] > 0) {
1752 priv->wep_is_on = 1;
1753 priv->exclude_unencrypted = 1;
1754 if (priv->wep_key_len[index] > 5) {
1755 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1756 priv->encryption_level = 2;
1757 } else {
1758 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1759 priv->encryption_level = 1;
1760 }
1761 }
1762 } else {
1763
1764 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1765 if (index >= 0 && index < 4) {
1766 priv->default_key = index;
1767 } else
1768
1769 if (!(dwrq->flags & IW_ENCODE_MODE))
1770 return -EINVAL;
1771 }
1772
1773 if (dwrq->flags & IW_ENCODE_DISABLED) {
1774 priv->wep_is_on = 0;
1775 priv->encryption_level = 0;
1776 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1777 } else {
1778 priv->wep_is_on = 1;
1779 if (priv->wep_key_len[priv->default_key] > 5) {
1780 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1781 priv->encryption_level = 2;
1782 } else {
1783 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1784 priv->encryption_level = 1;
1785 }
1786 }
1787 if (dwrq->flags & IW_ENCODE_RESTRICTED)
1788 priv->exclude_unencrypted = 1;
1789 if (dwrq->flags & IW_ENCODE_OPEN)
1790 priv->exclude_unencrypted = 0;
1791
1792 return -EINPROGRESS;
1793}
1794
1795static int atmel_get_encode(struct net_device *dev,
1796 struct iw_request_info *info,
1797 struct iw_point *dwrq,
1798 char *extra)
1799{
1800 struct atmel_private *priv = netdev_priv(dev);
1801 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1;
1802
1803 if (!priv->wep_is_on)
1804 dwrq->flags = IW_ENCODE_DISABLED;
1805 else {
1806 if (priv->exclude_unencrypted)
1807 dwrq->flags = IW_ENCODE_RESTRICTED;
1808 else
1809 dwrq->flags = IW_ENCODE_OPEN;
1810 }
1811
1812 if (index < 0 || index >= 4)
1813 index = priv->default_key;
1814 dwrq->flags |= index + 1;
1815
1816 dwrq->length = priv->wep_key_len[index];
1817 if (dwrq->length > 16) {
1818 dwrq->length = 0;
1819 } else {
1820 memset(extra, 0, 16);
1821 memcpy(extra, priv->wep_keys[index], dwrq->length);
1822 }
1823
1824 return 0;
1825}
1826
1827static int atmel_set_encodeext(struct net_device *dev,
1828 struct iw_request_info *info,
1829 union iwreq_data *wrqu,
1830 char *extra)
1831{
1832 struct atmel_private *priv = netdev_priv(dev);
1833 struct iw_point *encoding = &wrqu->encoding;
1834 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1835 int idx, key_len, alg = ext->alg, set_key = 1;
1836
1837
1838 idx = encoding->flags & IW_ENCODE_INDEX;
1839 if (idx) {
1840 if (idx < 1 || idx > 4)
1841 return -EINVAL;
1842 idx--;
1843 } else
1844 idx = priv->default_key;
1845
1846 if (encoding->flags & IW_ENCODE_DISABLED)
1847 alg = IW_ENCODE_ALG_NONE;
1848
1849 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
1850 priv->default_key = idx;
1851 set_key = ext->key_len > 0 ? 1 : 0;
1852 }
1853
1854 if (set_key) {
1855
1856 switch (alg) {
1857 case IW_ENCODE_ALG_NONE:
1858 priv->wep_is_on = 0;
1859 priv->encryption_level = 0;
1860 priv->pairwise_cipher_suite = CIPHER_SUITE_NONE;
1861 break;
1862 case IW_ENCODE_ALG_WEP:
1863 if (ext->key_len > 5) {
1864 priv->wep_key_len[idx] = 13;
1865 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_128;
1866 priv->encryption_level = 2;
1867 } else if (ext->key_len > 0) {
1868 priv->wep_key_len[idx] = 5;
1869 priv->pairwise_cipher_suite = CIPHER_SUITE_WEP_64;
1870 priv->encryption_level = 1;
1871 } else {
1872 return -EINVAL;
1873 }
1874 priv->wep_is_on = 1;
1875 memset(priv->wep_keys[idx], 0, 13);
1876 key_len = min ((int)ext->key_len, priv->wep_key_len[idx]);
1877 memcpy(priv->wep_keys[idx], ext->key, key_len);
1878 break;
1879 default:
1880 return -EINVAL;
1881 }
1882 }
1883
1884 return -EINPROGRESS;
1885}
1886
1887static int atmel_get_encodeext(struct net_device *dev,
1888 struct iw_request_info *info,
1889 union iwreq_data *wrqu,
1890 char *extra)
1891{
1892 struct atmel_private *priv = netdev_priv(dev);
1893 struct iw_point *encoding = &wrqu->encoding;
1894 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1895 int idx, max_key_len;
1896
1897 max_key_len = encoding->length - sizeof(*ext);
1898 if (max_key_len < 0)
1899 return -EINVAL;
1900
1901 idx = encoding->flags & IW_ENCODE_INDEX;
1902 if (idx) {
1903 if (idx < 1 || idx > 4)
1904 return -EINVAL;
1905 idx--;
1906 } else
1907 idx = priv->default_key;
1908
1909 encoding->flags = idx + 1;
1910 memset(ext, 0, sizeof(*ext));
1911
1912 if (!priv->wep_is_on) {
1913 ext->alg = IW_ENCODE_ALG_NONE;
1914 ext->key_len = 0;
1915 encoding->flags |= IW_ENCODE_DISABLED;
1916 } else {
1917 if (priv->encryption_level > 0)
1918 ext->alg = IW_ENCODE_ALG_WEP;
1919 else
1920 return -EINVAL;
1921
1922 ext->key_len = priv->wep_key_len[idx];
1923 memcpy(ext->key, priv->wep_keys[idx], ext->key_len);
1924 encoding->flags |= IW_ENCODE_ENABLED;
1925 }
1926
1927 return 0;
1928}
1929
1930static int atmel_set_auth(struct net_device *dev,
1931 struct iw_request_info *info,
1932 union iwreq_data *wrqu, char *extra)
1933{
1934 struct atmel_private *priv = netdev_priv(dev);
1935 struct iw_param *param = &wrqu->param;
1936
1937 switch (param->flags & IW_AUTH_INDEX) {
1938 case IW_AUTH_WPA_VERSION:
1939 case IW_AUTH_CIPHER_PAIRWISE:
1940 case IW_AUTH_CIPHER_GROUP:
1941 case IW_AUTH_KEY_MGMT:
1942 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1943 case IW_AUTH_PRIVACY_INVOKED:
1944
1945
1946
1947 break;
1948
1949 case IW_AUTH_DROP_UNENCRYPTED:
1950 priv->exclude_unencrypted = param->value ? 1 : 0;
1951 break;
1952
1953 case IW_AUTH_80211_AUTH_ALG: {
1954 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
1955 priv->exclude_unencrypted = 1;
1956 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
1957 priv->exclude_unencrypted = 0;
1958 } else
1959 return -EINVAL;
1960 break;
1961 }
1962
1963 case IW_AUTH_WPA_ENABLED:
1964
1965 if (param->value > 0)
1966 return -EOPNOTSUPP;
1967 break;
1968
1969 default:
1970 return -EOPNOTSUPP;
1971 }
1972 return -EINPROGRESS;
1973}
1974
1975static int atmel_get_auth(struct net_device *dev,
1976 struct iw_request_info *info,
1977 union iwreq_data *wrqu, char *extra)
1978{
1979 struct atmel_private *priv = netdev_priv(dev);
1980 struct iw_param *param = &wrqu->param;
1981
1982 switch (param->flags & IW_AUTH_INDEX) {
1983 case IW_AUTH_DROP_UNENCRYPTED:
1984 param->value = priv->exclude_unencrypted;
1985 break;
1986
1987 case IW_AUTH_80211_AUTH_ALG:
1988 if (priv->exclude_unencrypted == 1)
1989 param->value = IW_AUTH_ALG_SHARED_KEY;
1990 else
1991 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
1992 break;
1993
1994 case IW_AUTH_WPA_ENABLED:
1995 param->value = 0;
1996 break;
1997
1998 default:
1999 return -EOPNOTSUPP;
2000 }
2001 return 0;
2002}
2003
2004
2005static int atmel_get_name(struct net_device *dev,
2006 struct iw_request_info *info,
2007 char *cwrq,
2008 char *extra)
2009{
2010 strcpy(cwrq, "IEEE 802.11-DS");
2011 return 0;
2012}
2013
2014static int atmel_set_rate(struct net_device *dev,
2015 struct iw_request_info *info,
2016 struct iw_param *vwrq,
2017 char *extra)
2018{
2019 struct atmel_private *priv = netdev_priv(dev);
2020
2021 if (vwrq->fixed == 0) {
2022 priv->tx_rate = 3;
2023 priv->auto_tx_rate = 1;
2024 } else {
2025 priv->auto_tx_rate = 0;
2026
2027
2028 if ((vwrq->value < 4) && (vwrq->value >= 0)) {
2029
2030 priv->tx_rate = vwrq->value;
2031 } else {
2032
2033 switch (vwrq->value) {
2034 case 1000000:
2035 priv->tx_rate = 0;
2036 break;
2037 case 2000000:
2038 priv->tx_rate = 1;
2039 break;
2040 case 5500000:
2041 priv->tx_rate = 2;
2042 break;
2043 case 11000000:
2044 priv->tx_rate = 3;
2045 break;
2046 default:
2047 return -EINVAL;
2048 }
2049 }
2050 }
2051
2052 return -EINPROGRESS;
2053}
2054
2055static int atmel_set_mode(struct net_device *dev,
2056 struct iw_request_info *info,
2057 __u32 *uwrq,
2058 char *extra)
2059{
2060 struct atmel_private *priv = netdev_priv(dev);
2061
2062 if (*uwrq != IW_MODE_ADHOC && *uwrq != IW_MODE_INFRA)
2063 return -EINVAL;
2064
2065 priv->operating_mode = *uwrq;
2066 return -EINPROGRESS;
2067}
2068
2069static int atmel_get_mode(struct net_device *dev,
2070 struct iw_request_info *info,
2071 __u32 *uwrq,
2072 char *extra)
2073{
2074 struct atmel_private *priv = netdev_priv(dev);
2075
2076 *uwrq = priv->operating_mode;
2077 return 0;
2078}
2079
2080static int atmel_get_rate(struct net_device *dev,
2081 struct iw_request_info *info,
2082 struct iw_param *vwrq,
2083 char *extra)
2084{
2085 struct atmel_private *priv = netdev_priv(dev);
2086
2087 if (priv->auto_tx_rate) {
2088 vwrq->fixed = 0;
2089 vwrq->value = 11000000;
2090 } else {
2091 vwrq->fixed = 1;
2092 switch (priv->tx_rate) {
2093 case 0:
2094 vwrq->value = 1000000;
2095 break;
2096 case 1:
2097 vwrq->value = 2000000;
2098 break;
2099 case 2:
2100 vwrq->value = 5500000;
2101 break;
2102 case 3:
2103 vwrq->value = 11000000;
2104 break;
2105 }
2106 }
2107 return 0;
2108}
2109
2110static int atmel_set_power(struct net_device *dev,
2111 struct iw_request_info *info,
2112 struct iw_param *vwrq,
2113 char *extra)
2114{
2115 struct atmel_private *priv = netdev_priv(dev);
2116 priv->power_mode = vwrq->disabled ? 0 : 1;
2117 return -EINPROGRESS;
2118}
2119
2120static int atmel_get_power(struct net_device *dev,
2121 struct iw_request_info *info,
2122 struct iw_param *vwrq,
2123 char *extra)
2124{
2125 struct atmel_private *priv = netdev_priv(dev);
2126 vwrq->disabled = priv->power_mode ? 0 : 1;
2127 vwrq->flags = IW_POWER_ON;
2128 return 0;
2129}
2130
2131static int atmel_set_retry(struct net_device *dev,
2132 struct iw_request_info *info,
2133 struct iw_param *vwrq,
2134 char *extra)
2135{
2136 struct atmel_private *priv = netdev_priv(dev);
2137
2138 if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) {
2139 if (vwrq->flags & IW_RETRY_LONG)
2140 priv->long_retry = vwrq->value;
2141 else if (vwrq->flags & IW_RETRY_SHORT)
2142 priv->short_retry = vwrq->value;
2143 else {
2144
2145 priv->long_retry = vwrq->value;
2146 priv->short_retry = vwrq->value;
2147 }
2148 return -EINPROGRESS;
2149 }
2150
2151 return -EINVAL;
2152}
2153
2154static int atmel_get_retry(struct net_device *dev,
2155 struct iw_request_info *info,
2156 struct iw_param *vwrq,
2157 char *extra)
2158{
2159 struct atmel_private *priv = netdev_priv(dev);
2160
2161 vwrq->disabled = 0;
2162
2163
2164 if (vwrq->flags & IW_RETRY_LONG) {
2165 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
2166 vwrq->value = priv->long_retry;
2167 } else {
2168 vwrq->flags = IW_RETRY_LIMIT;
2169 vwrq->value = priv->short_retry;
2170 if (priv->long_retry != priv->short_retry)
2171 vwrq->flags |= IW_RETRY_SHORT;
2172 }
2173
2174 return 0;
2175}
2176
2177static int atmel_set_rts(struct net_device *dev,
2178 struct iw_request_info *info,
2179 struct iw_param *vwrq,
2180 char *extra)
2181{
2182 struct atmel_private *priv = netdev_priv(dev);
2183 int rthr = vwrq->value;
2184
2185 if (vwrq->disabled)
2186 rthr = 2347;
2187 if ((rthr < 0) || (rthr > 2347)) {
2188 return -EINVAL;
2189 }
2190 priv->rts_threshold = rthr;
2191
2192 return -EINPROGRESS;
2193}
2194
2195static int atmel_get_rts(struct net_device *dev,
2196 struct iw_request_info *info,
2197 struct iw_param *vwrq,
2198 char *extra)
2199{
2200 struct atmel_private *priv = netdev_priv(dev);
2201
2202 vwrq->value = priv->rts_threshold;
2203 vwrq->disabled = (vwrq->value >= 2347);
2204 vwrq->fixed = 1;
2205
2206 return 0;
2207}
2208
2209static int atmel_set_frag(struct net_device *dev,
2210 struct iw_request_info *info,
2211 struct iw_param *vwrq,
2212 char *extra)
2213{
2214 struct atmel_private *priv = netdev_priv(dev);
2215 int fthr = vwrq->value;
2216
2217 if (vwrq->disabled)
2218 fthr = 2346;
2219 if ((fthr < 256) || (fthr > 2346)) {
2220 return -EINVAL;
2221 }
2222 fthr &= ~0x1;
2223 priv->frag_threshold = fthr;
2224
2225 return -EINPROGRESS;
2226}
2227
2228static int atmel_get_frag(struct net_device *dev,
2229 struct iw_request_info *info,
2230 struct iw_param *vwrq,
2231 char *extra)
2232{
2233 struct atmel_private *priv = netdev_priv(dev);
2234
2235 vwrq->value = priv->frag_threshold;
2236 vwrq->disabled = (vwrq->value >= 2346);
2237 vwrq->fixed = 1;
2238
2239 return 0;
2240}
2241
2242static int atmel_set_freq(struct net_device *dev,
2243 struct iw_request_info *info,
2244 struct iw_freq *fwrq,
2245 char *extra)
2246{
2247 struct atmel_private *priv = netdev_priv(dev);
2248 int rc = -EINPROGRESS;
2249
2250
2251 if (fwrq->e == 1) {
2252 int f = fwrq->m / 100000;
2253
2254
2255 fwrq->e = 0;
2256 fwrq->m = ieee80211_frequency_to_channel(f);
2257 }
2258
2259 if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
2260 rc = -EOPNOTSUPP;
2261 else {
2262 int channel = fwrq->m;
2263 if (atmel_validate_channel(priv, channel) == 0) {
2264 priv->channel = channel;
2265 } else {
2266 rc = -EINVAL;
2267 }
2268 }
2269 return rc;
2270}
2271
2272static int atmel_get_freq(struct net_device *dev,
2273 struct iw_request_info *info,
2274 struct iw_freq *fwrq,
2275 char *extra)
2276{
2277 struct atmel_private *priv = netdev_priv(dev);
2278
2279 fwrq->m = priv->channel;
2280 fwrq->e = 0;
2281 return 0;
2282}
2283
2284static int atmel_set_scan(struct net_device *dev,
2285 struct iw_request_info *info,
2286 struct iw_point *dwrq,
2287 char *extra)
2288{
2289 struct atmel_private *priv = netdev_priv(dev);
2290 unsigned long flags;
2291
2292
2293
2294
2295
2296
2297
2298
2299 if (priv->station_state == STATION_STATE_DOWN)
2300 return -EAGAIN;
2301
2302
2303 if (time_after(jiffies, priv->last_survey + 20 * HZ))
2304 priv->site_survey_state = SITE_SURVEY_IDLE;
2305 priv->last_survey = jiffies;
2306
2307
2308 if (priv->site_survey_state == SITE_SURVEY_IN_PROGRESS)
2309 return -EBUSY;
2310
2311 del_timer_sync(&priv->management_timer);
2312 spin_lock_irqsave(&priv->irqlock, flags);
2313
2314 priv->site_survey_state = SITE_SURVEY_IN_PROGRESS;
2315 priv->fast_scan = 0;
2316 atmel_scan(priv, 0);
2317 spin_unlock_irqrestore(&priv->irqlock, flags);
2318
2319 return 0;
2320}
2321
2322static int atmel_get_scan(struct net_device *dev,
2323 struct iw_request_info *info,
2324 struct iw_point *dwrq,
2325 char *extra)
2326{
2327 struct atmel_private *priv = netdev_priv(dev);
2328 int i;
2329 char *current_ev = extra;
2330 struct iw_event iwe;
2331
2332 if (priv->site_survey_state != SITE_SURVEY_COMPLETED)
2333 return -EAGAIN;
2334
2335 for (i = 0; i < priv->BSS_list_entries; i++) {
2336 iwe.cmd = SIOCGIWAP;
2337 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
2338 memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, ETH_ALEN);
2339 current_ev = iwe_stream_add_event(info, current_ev,
2340 extra + IW_SCAN_MAX_DATA,
2341 &iwe, IW_EV_ADDR_LEN);
2342
2343 iwe.u.data.length = priv->BSSinfo[i].SSIDsize;
2344 if (iwe.u.data.length > 32)
2345 iwe.u.data.length = 32;
2346 iwe.cmd = SIOCGIWESSID;
2347 iwe.u.data.flags = 1;
2348 current_ev = iwe_stream_add_point(info, current_ev,
2349 extra + IW_SCAN_MAX_DATA,
2350 &iwe, priv->BSSinfo[i].SSID);
2351
2352 iwe.cmd = SIOCGIWMODE;
2353 iwe.u.mode = priv->BSSinfo[i].BSStype;
2354 current_ev = iwe_stream_add_event(info, current_ev,
2355 extra + IW_SCAN_MAX_DATA,
2356 &iwe, IW_EV_UINT_LEN);
2357
2358 iwe.cmd = SIOCGIWFREQ;
2359 iwe.u.freq.m = priv->BSSinfo[i].channel;
2360 iwe.u.freq.e = 0;
2361 current_ev = iwe_stream_add_event(info, current_ev,
2362 extra + IW_SCAN_MAX_DATA,
2363 &iwe, IW_EV_FREQ_LEN);
2364
2365
2366 iwe.cmd = IWEVQUAL;
2367 iwe.u.qual.level = priv->BSSinfo[i].RSSI;
2368 iwe.u.qual.qual = iwe.u.qual.level;
2369
2370 current_ev = iwe_stream_add_event(info, current_ev,
2371 extra + IW_SCAN_MAX_DATA,
2372 &iwe, IW_EV_QUAL_LEN);
2373
2374
2375 iwe.cmd = SIOCGIWENCODE;
2376 if (priv->BSSinfo[i].UsingWEP)
2377 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
2378 else
2379 iwe.u.data.flags = IW_ENCODE_DISABLED;
2380 iwe.u.data.length = 0;
2381 current_ev = iwe_stream_add_point(info, current_ev,
2382 extra + IW_SCAN_MAX_DATA,
2383 &iwe, NULL);
2384 }
2385
2386
2387 dwrq->length = (current_ev - extra);
2388 dwrq->flags = 0;
2389
2390 return 0;
2391}
2392
2393static int atmel_get_range(struct net_device *dev,
2394 struct iw_request_info *info,
2395 struct iw_point *dwrq,
2396 char *extra)
2397{
2398 struct atmel_private *priv = netdev_priv(dev);
2399 struct iw_range *range = (struct iw_range *) extra;
2400 int k, i, j;
2401
2402 dwrq->length = sizeof(struct iw_range);
2403 memset(range, 0, sizeof(struct iw_range));
2404 range->min_nwid = 0x0000;
2405 range->max_nwid = 0x0000;
2406 range->num_channels = 0;
2407 for (j = 0; j < ARRAY_SIZE(channel_table); j++)
2408 if (priv->reg_domain == channel_table[j].reg_domain) {
2409 range->num_channels = channel_table[j].max - channel_table[j].min + 1;
2410 break;
2411 }
2412 if (range->num_channels != 0) {
2413 for (k = 0, i = channel_table[j].min; i <= channel_table[j].max; i++) {
2414 range->freq[k].i = i;
2415
2416
2417 range->freq[k].m = 100000 *
2418 ieee80211_channel_to_frequency(i, NL80211_BAND_2GHZ);
2419 range->freq[k++].e = 1;
2420 }
2421 range->num_frequency = k;
2422 }
2423
2424 range->max_qual.qual = 100;
2425 range->max_qual.level = 100;
2426 range->max_qual.noise = 0;
2427 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
2428
2429 range->avg_qual.qual = 50;
2430 range->avg_qual.level = 50;
2431 range->avg_qual.noise = 0;
2432 range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
2433
2434 range->sensitivity = 0;
2435
2436 range->bitrate[0] = 1000000;
2437 range->bitrate[1] = 2000000;
2438 range->bitrate[2] = 5500000;
2439 range->bitrate[3] = 11000000;
2440 range->num_bitrates = 4;
2441
2442 range->min_rts = 0;
2443 range->max_rts = 2347;
2444 range->min_frag = 256;
2445 range->max_frag = 2346;
2446
2447 range->encoding_size[0] = 5;
2448 range->encoding_size[1] = 13;
2449 range->num_encoding_sizes = 2;
2450 range->max_encoding_tokens = 4;
2451
2452 range->pmp_flags = IW_POWER_ON;
2453 range->pmt_flags = IW_POWER_ON;
2454 range->pm_capa = 0;
2455
2456 range->we_version_source = WIRELESS_EXT;
2457 range->we_version_compiled = WIRELESS_EXT;
2458 range->retry_capa = IW_RETRY_LIMIT ;
2459 range->retry_flags = IW_RETRY_LIMIT;
2460 range->r_time_flags = 0;
2461 range->min_retry = 1;
2462 range->max_retry = 65535;
2463
2464 return 0;
2465}
2466
2467static int atmel_set_wap(struct net_device *dev,
2468 struct iw_request_info *info,
2469 struct sockaddr *awrq,
2470 char *extra)
2471{
2472 struct atmel_private *priv = netdev_priv(dev);
2473 int i;
2474 static const u8 any[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2475 static const u8 off[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
2476 unsigned long flags;
2477
2478 if (awrq->sa_family != ARPHRD_ETHER)
2479 return -EINVAL;
2480
2481 if (!memcmp(any, awrq->sa_data, 6) ||
2482 !memcmp(off, awrq->sa_data, 6)) {
2483 del_timer_sync(&priv->management_timer);
2484 spin_lock_irqsave(&priv->irqlock, flags);
2485 atmel_scan(priv, 1);
2486 spin_unlock_irqrestore(&priv->irqlock, flags);
2487 return 0;
2488 }
2489
2490 for (i = 0; i < priv->BSS_list_entries; i++) {
2491 if (memcmp(priv->BSSinfo[i].BSSID, awrq->sa_data, 6) == 0) {
2492 if (!priv->wep_is_on && priv->BSSinfo[i].UsingWEP) {
2493 return -EINVAL;
2494 } else if (priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) {
2495 return -EINVAL;
2496 } else {
2497 del_timer_sync(&priv->management_timer);
2498 spin_lock_irqsave(&priv->irqlock, flags);
2499 atmel_join_bss(priv, i);
2500 spin_unlock_irqrestore(&priv->irqlock, flags);
2501 return 0;
2502 }
2503 }
2504 }
2505
2506 return -EINVAL;
2507}
2508
2509static int atmel_config_commit(struct net_device *dev,
2510 struct iw_request_info *info,
2511 void *zwrq,
2512 char *extra)
2513{
2514 return atmel_open(dev);
2515}
2516
2517static const iw_handler atmel_handler[] =
2518{
2519 (iw_handler) atmel_config_commit,
2520 (iw_handler) atmel_get_name,
2521 (iw_handler) NULL,
2522 (iw_handler) NULL,
2523 (iw_handler) atmel_set_freq,
2524 (iw_handler) atmel_get_freq,
2525 (iw_handler) atmel_set_mode,
2526 (iw_handler) atmel_get_mode,
2527 (iw_handler) NULL,
2528 (iw_handler) NULL,
2529 (iw_handler) NULL,
2530 (iw_handler) atmel_get_range,
2531 (iw_handler) NULL,
2532 (iw_handler) NULL,
2533 (iw_handler) NULL,
2534 (iw_handler) NULL,
2535 (iw_handler) NULL,
2536 (iw_handler) NULL,
2537 (iw_handler) NULL,
2538 (iw_handler) NULL,
2539 (iw_handler) atmel_set_wap,
2540 (iw_handler) atmel_get_wap,
2541 (iw_handler) NULL,
2542 (iw_handler) NULL,
2543 (iw_handler) atmel_set_scan,
2544 (iw_handler) atmel_get_scan,
2545 (iw_handler) atmel_set_essid,
2546 (iw_handler) atmel_get_essid,
2547 (iw_handler) NULL,
2548 (iw_handler) NULL,
2549 (iw_handler) NULL,
2550 (iw_handler) NULL,
2551 (iw_handler) atmel_set_rate,
2552 (iw_handler) atmel_get_rate,
2553 (iw_handler) atmel_set_rts,
2554 (iw_handler) atmel_get_rts,
2555 (iw_handler) atmel_set_frag,
2556 (iw_handler) atmel_get_frag,
2557 (iw_handler) NULL,
2558 (iw_handler) NULL,
2559 (iw_handler) atmel_set_retry,
2560 (iw_handler) atmel_get_retry,
2561 (iw_handler) atmel_set_encode,
2562 (iw_handler) atmel_get_encode,
2563 (iw_handler) atmel_set_power,
2564 (iw_handler) atmel_get_power,
2565 (iw_handler) NULL,
2566 (iw_handler) NULL,
2567 (iw_handler) NULL,
2568 (iw_handler) NULL,
2569 (iw_handler) atmel_set_auth,
2570 (iw_handler) atmel_get_auth,
2571 (iw_handler) atmel_set_encodeext,
2572 (iw_handler) atmel_get_encodeext,
2573 (iw_handler) NULL,
2574};
2575
2576static const iw_handler atmel_private_handler[] =
2577{
2578 NULL,
2579};
2580
2581struct atmel_priv_ioctl {
2582 char id[32];
2583 unsigned char __user *data;
2584 unsigned short len;
2585};
2586
2587#define ATMELFWL SIOCIWFIRSTPRIV
2588#define ATMELIDIFC ATMELFWL + 1
2589#define ATMELRD ATMELFWL + 2
2590#define ATMELMAGIC 0x51807
2591#define REGDOMAINSZ 20
2592
2593static const struct iw_priv_args atmel_private_args[] = {
2594 {
2595 .cmd = ATMELFWL,
2596 .set_args = IW_PRIV_TYPE_BYTE
2597 | IW_PRIV_SIZE_FIXED
2598 | sizeof(struct atmel_priv_ioctl),
2599 .get_args = IW_PRIV_TYPE_NONE,
2600 .name = "atmelfwl"
2601 }, {
2602 .cmd = ATMELIDIFC,
2603 .set_args = IW_PRIV_TYPE_NONE,
2604 .get_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
2605 .name = "atmelidifc"
2606 }, {
2607 .cmd = ATMELRD,
2608 .set_args = IW_PRIV_TYPE_CHAR | REGDOMAINSZ,
2609 .get_args = IW_PRIV_TYPE_NONE,
2610 .name = "regdomain"
2611 },
2612};
2613
2614static const struct iw_handler_def atmel_handler_def = {
2615 .num_standard = ARRAY_SIZE(atmel_handler),
2616 .num_private = ARRAY_SIZE(atmel_private_handler),
2617 .num_private_args = ARRAY_SIZE(atmel_private_args),
2618 .standard = (iw_handler *) atmel_handler,
2619 .private = (iw_handler *) atmel_private_handler,
2620 .private_args = (struct iw_priv_args *) atmel_private_args,
2621 .get_wireless_stats = atmel_get_wireless_stats
2622};
2623
2624static int atmel_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2625{
2626 int i, rc = 0;
2627 struct atmel_private *priv = netdev_priv(dev);
2628 struct atmel_priv_ioctl com;
2629 struct iwreq *wrq = (struct iwreq *) rq;
2630 unsigned char *new_firmware;
2631 char domain[REGDOMAINSZ + 1];
2632
2633 switch (cmd) {
2634 case ATMELIDIFC:
2635 wrq->u.param.value = ATMELMAGIC;
2636 break;
2637
2638 case ATMELFWL:
2639 if (copy_from_user(&com, rq->ifr_data, sizeof(com))) {
2640 rc = -EFAULT;
2641 break;
2642 }
2643
2644 if (!capable(CAP_NET_ADMIN)) {
2645 rc = -EPERM;
2646 break;
2647 }
2648
2649 if (!(new_firmware = kmalloc(com.len, GFP_KERNEL))) {
2650 rc = -ENOMEM;
2651 break;
2652 }
2653
2654 if (copy_from_user(new_firmware, com.data, com.len)) {
2655 kfree(new_firmware);
2656 rc = -EFAULT;
2657 break;
2658 }
2659
2660 kfree(priv->firmware);
2661
2662 priv->firmware = new_firmware;
2663 priv->firmware_length = com.len;
2664 strncpy(priv->firmware_id, com.id, 31);
2665 priv->firmware_id[31] = '\0';
2666 break;
2667
2668 case ATMELRD:
2669 if (copy_from_user(domain, rq->ifr_data, REGDOMAINSZ)) {
2670 rc = -EFAULT;
2671 break;
2672 }
2673
2674 if (!capable(CAP_NET_ADMIN)) {
2675 rc = -EPERM;
2676 break;
2677 }
2678
2679 domain[REGDOMAINSZ] = 0;
2680 rc = -EINVAL;
2681 for (i = 0; i < ARRAY_SIZE(channel_table); i++) {
2682 if (!strcasecmp(channel_table[i].name, domain)) {
2683 priv->config_reg_domain = channel_table[i].reg_domain;
2684 rc = 0;
2685 }
2686 }
2687
2688 if (rc == 0 && priv->station_state != STATION_STATE_DOWN)
2689 rc = atmel_open(dev);
2690 break;
2691
2692 default:
2693 rc = -EOPNOTSUPP;
2694 }
2695
2696 return rc;
2697}
2698
2699struct auth_body {
2700 __le16 alg;
2701 __le16 trans_seq;
2702 __le16 status;
2703 u8 el_id;
2704 u8 chall_text_len;
2705 u8 chall_text[253];
2706};
2707
2708static void atmel_enter_state(struct atmel_private *priv, int new_state)
2709{
2710 int old_state = priv->station_state;
2711
2712 if (new_state == old_state)
2713 return;
2714
2715 priv->station_state = new_state;
2716
2717 if (new_state == STATION_STATE_READY) {
2718 netif_start_queue(priv->dev);
2719 netif_carrier_on(priv->dev);
2720 }
2721
2722 if (old_state == STATION_STATE_READY) {
2723 netif_carrier_off(priv->dev);
2724 if (netif_running(priv->dev))
2725 netif_stop_queue(priv->dev);
2726 priv->last_beacon_timestamp = 0;
2727 }
2728}
2729
2730static void atmel_scan(struct atmel_private *priv, int specific_ssid)
2731{
2732 struct {
2733 u8 BSSID[ETH_ALEN];
2734 u8 SSID[MAX_SSID_LENGTH];
2735 u8 scan_type;
2736 u8 channel;
2737 __le16 BSS_type;
2738 __le16 min_channel_time;
2739 __le16 max_channel_time;
2740 u8 options;
2741 u8 SSID_size;
2742 } cmd;
2743
2744 eth_broadcast_addr(cmd.BSSID);
2745
2746 if (priv->fast_scan) {
2747 cmd.SSID_size = priv->SSID_size;
2748 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2749 cmd.min_channel_time = cpu_to_le16(10);
2750 cmd.max_channel_time = cpu_to_le16(50);
2751 } else {
2752 priv->BSS_list_entries = 0;
2753 cmd.SSID_size = 0;
2754 cmd.min_channel_time = cpu_to_le16(10);
2755 cmd.max_channel_time = cpu_to_le16(120);
2756 }
2757
2758 cmd.options = 0;
2759
2760 if (!specific_ssid)
2761 cmd.options |= SCAN_OPTIONS_SITE_SURVEY;
2762
2763 cmd.channel = (priv->channel & 0x7f);
2764 cmd.scan_type = SCAN_TYPE_ACTIVE;
2765 cmd.BSS_type = cpu_to_le16(priv->operating_mode == IW_MODE_ADHOC ?
2766 BSS_TYPE_AD_HOC : BSS_TYPE_INFRASTRUCTURE);
2767
2768 atmel_send_command(priv, CMD_Scan, &cmd, sizeof(cmd));
2769
2770
2771
2772 atmel_enter_state(priv, STATION_STATE_SCANNING);
2773}
2774
2775static void join(struct atmel_private *priv, int type)
2776{
2777 struct {
2778 u8 BSSID[6];
2779 u8 SSID[MAX_SSID_LENGTH];
2780 u8 BSS_type;
2781 u8 channel;
2782 __le16 timeout;
2783 u8 SSID_size;
2784 u8 reserved;
2785 } cmd;
2786
2787 cmd.SSID_size = priv->SSID_size;
2788 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2789 memcpy(cmd.BSSID, priv->CurrentBSSID, ETH_ALEN);
2790 cmd.channel = (priv->channel & 0x7f);
2791 cmd.BSS_type = type;
2792 cmd.timeout = cpu_to_le16(2000);
2793
2794 atmel_send_command(priv, CMD_Join, &cmd, sizeof(cmd));
2795}
2796
2797static void start(struct atmel_private *priv, int type)
2798{
2799 struct {
2800 u8 BSSID[6];
2801 u8 SSID[MAX_SSID_LENGTH];
2802 u8 BSS_type;
2803 u8 channel;
2804 u8 SSID_size;
2805 u8 reserved[3];
2806 } cmd;
2807
2808 cmd.SSID_size = priv->SSID_size;
2809 memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
2810 memcpy(cmd.BSSID, priv->BSSID, ETH_ALEN);
2811 cmd.BSS_type = type;
2812 cmd.channel = (priv->channel & 0x7f);
2813
2814 atmel_send_command(priv, CMD_Start, &cmd, sizeof(cmd));
2815}
2816
2817static void handle_beacon_probe(struct atmel_private *priv, u16 capability,
2818 u8 channel)
2819{
2820 int rejoin = 0;
2821 int new = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
2822 SHORT_PREAMBLE : LONG_PREAMBLE;
2823
2824 if (priv->preamble != new) {
2825 priv->preamble = new;
2826 rejoin = 1;
2827 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, new);
2828 }
2829
2830 if (priv->channel != channel) {
2831 priv->channel = channel;
2832 rejoin = 1;
2833 atmel_set_mib8(priv, Phy_Mib_Type, PHY_MIB_CHANNEL_POS, channel);
2834 }
2835
2836 if (rejoin) {
2837 priv->station_is_associated = 0;
2838 atmel_enter_state(priv, STATION_STATE_JOINNING);
2839
2840 if (priv->operating_mode == IW_MODE_INFRA)
2841 join(priv, BSS_TYPE_INFRASTRUCTURE);
2842 else
2843 join(priv, BSS_TYPE_AD_HOC);
2844 }
2845}
2846
2847static void send_authentication_request(struct atmel_private *priv, u16 system,
2848 u8 *challenge, int challenge_len)
2849{
2850 struct ieee80211_hdr header;
2851 struct auth_body auth;
2852
2853 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
2854 header.duration_id = cpu_to_le16(0x8000);
2855 header.seq_ctrl = 0;
2856 memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
2857 memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
2858 memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
2859
2860 if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
2861
2862 header.frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
2863
2864 auth.alg = cpu_to_le16(system);
2865
2866 auth.status = 0;
2867 auth.trans_seq = cpu_to_le16(priv->CurrentAuthentTransactionSeqNum);
2868 priv->ExpectedAuthentTransactionSeqNum = priv->CurrentAuthentTransactionSeqNum+1;
2869 priv->CurrentAuthentTransactionSeqNum += 2;
2870
2871 if (challenge_len != 0) {
2872 auth.el_id = 16;
2873 auth.chall_text_len = challenge_len;
2874 memcpy(auth.chall_text, challenge, challenge_len);
2875 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 8 + challenge_len);
2876 } else {
2877 atmel_transmit_management_frame(priv, &header, (u8 *)&auth, 6);
2878 }
2879}
2880
2881static void send_association_request(struct atmel_private *priv, int is_reassoc)
2882{
2883 u8 *ssid_el_p;
2884 int bodysize;
2885 struct ieee80211_hdr header;
2886 struct ass_req_format {
2887 __le16 capability;
2888 __le16 listen_interval;
2889 u8 ap[ETH_ALEN];
2890 u8 ssid_el_id;
2891 u8 ssid_len;
2892 u8 ssid[MAX_SSID_LENGTH];
2893 u8 sup_rates_el_id;
2894 u8 sup_rates_len;
2895 u8 rates[4];
2896 } body;
2897
2898 header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2899 (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ));
2900 header.duration_id = cpu_to_le16(0x8000);
2901 header.seq_ctrl = 0;
2902
2903 memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
2904 memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
2905 memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
2906
2907 body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
2908 if (priv->wep_is_on)
2909 body.capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
2910 if (priv->preamble == SHORT_PREAMBLE)
2911 body.capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
2912
2913 body.listen_interval = cpu_to_le16(priv->listen_interval * priv->beacon_period);
2914
2915
2916 if (is_reassoc) {
2917 memcpy(body.ap, priv->CurrentBSSID, ETH_ALEN);
2918 ssid_el_p = &body.ssid_el_id;
2919 bodysize = 18 + priv->SSID_size;
2920 } else {
2921 ssid_el_p = &body.ap[0];
2922 bodysize = 12 + priv->SSID_size;
2923 }
2924
2925 ssid_el_p[0] = WLAN_EID_SSID;
2926 ssid_el_p[1] = priv->SSID_size;
2927 memcpy(ssid_el_p + 2, priv->SSID, priv->SSID_size);
2928 ssid_el_p[2 + priv->SSID_size] = WLAN_EID_SUPP_RATES;
2929 ssid_el_p[3 + priv->SSID_size] = 4;
2930 memcpy(ssid_el_p + 4 + priv->SSID_size, atmel_basic_rates, 4);
2931
2932 atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize);
2933}
2934
2935static int is_frame_from_current_bss(struct atmel_private *priv,
2936 struct ieee80211_hdr *header)
2937{
2938 if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
2939 return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0;
2940 else
2941 return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0;
2942}
2943
2944static int retrieve_bss(struct atmel_private *priv)
2945{
2946 int i;
2947 int max_rssi = -128;
2948 int max_index = -1;
2949
2950 if (priv->BSS_list_entries == 0)
2951 return -1;
2952
2953 if (priv->connect_to_any_BSS) {
2954
2955
2956
2957
2958 priv->current_BSS = 0;
2959 for (i = 0; i < priv->BSS_list_entries; i++) {
2960 if (priv->operating_mode == priv->BSSinfo[i].BSStype &&
2961 ((!priv->wep_is_on && !priv->BSSinfo[i].UsingWEP) ||
2962 (priv->wep_is_on && priv->BSSinfo[i].UsingWEP)) &&
2963 !(priv->BSSinfo[i].channel & 0x80)) {
2964 max_rssi = priv->BSSinfo[i].RSSI;
2965 priv->current_BSS = max_index = i;
2966 }
2967 }
2968 return max_index;
2969 }
2970
2971 for (i = 0; i < priv->BSS_list_entries; i++) {
2972 if (priv->SSID_size == priv->BSSinfo[i].SSIDsize &&
2973 memcmp(priv->SSID, priv->BSSinfo[i].SSID, priv->SSID_size) == 0 &&
2974 priv->operating_mode == priv->BSSinfo[i].BSStype &&
2975 atmel_validate_channel(priv, priv->BSSinfo[i].channel) == 0) {
2976 if (priv->BSSinfo[i].RSSI >= max_rssi) {
2977 max_rssi = priv->BSSinfo[i].RSSI;
2978 max_index = i;
2979 }
2980 }
2981 }
2982 return max_index;
2983}
2984
2985static void store_bss_info(struct atmel_private *priv,
2986 struct ieee80211_hdr *header, u16 capability,
2987 u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len,
2988 u8 *ssid, int is_beacon)
2989{
2990 u8 *bss = capability & WLAN_CAPABILITY_ESS ? header->addr2 : header->addr3;
2991 int i, index;
2992
2993 for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
2994 if (memcmp(bss, priv->BSSinfo[i].BSSID, ETH_ALEN) == 0)
2995 index = i;
2996
2997
2998
2999
3000
3001 if (index == -1) {
3002 if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
3003 return;
3004 index = priv->BSS_list_entries++;
3005 memcpy(priv->BSSinfo[index].BSSID, bss, ETH_ALEN);
3006 priv->BSSinfo[index].RSSI = rssi;
3007 } else {
3008 if (rssi > priv->BSSinfo[index].RSSI)
3009 priv->BSSinfo[index].RSSI = rssi;
3010 if (is_beacon)
3011 return;
3012 }
3013
3014 priv->BSSinfo[index].channel = channel;
3015 priv->BSSinfo[index].beacon_period = beacon_period;
3016 priv->BSSinfo[index].UsingWEP = capability & WLAN_CAPABILITY_PRIVACY;
3017 memcpy(priv->BSSinfo[index].SSID, ssid, ssid_len);
3018 priv->BSSinfo[index].SSIDsize = ssid_len;
3019
3020 if (capability & WLAN_CAPABILITY_IBSS)
3021 priv->BSSinfo[index].BSStype = IW_MODE_ADHOC;
3022 else if (capability & WLAN_CAPABILITY_ESS)
3023 priv->BSSinfo[index].BSStype = IW_MODE_INFRA;
3024
3025 priv->BSSinfo[index].preamble = capability & WLAN_CAPABILITY_SHORT_PREAMBLE ?
3026 SHORT_PREAMBLE : LONG_PREAMBLE;
3027}
3028
3029static void authenticate(struct atmel_private *priv, u16 frame_len)
3030{
3031 struct auth_body *auth = (struct auth_body *)priv->rx_buf;
3032 u16 status = le16_to_cpu(auth->status);
3033 u16 trans_seq_no = le16_to_cpu(auth->trans_seq);
3034 u16 system = le16_to_cpu(auth->alg);
3035
3036 if (status == WLAN_STATUS_SUCCESS && !priv->wep_is_on) {
3037
3038 if (priv->station_was_associated) {
3039 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3040 send_association_request(priv, 1);
3041 return;
3042 } else {
3043 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3044 send_association_request(priv, 0);
3045 return;
3046 }
3047 }
3048
3049 if (status == WLAN_STATUS_SUCCESS && priv->wep_is_on) {
3050 int should_associate = 0;
3051
3052 if (trans_seq_no != priv->ExpectedAuthentTransactionSeqNum)
3053 return;
3054
3055 if (system == WLAN_AUTH_OPEN) {
3056 if (trans_seq_no == 0x0002) {
3057 should_associate = 1;
3058 }
3059 } else if (system == WLAN_AUTH_SHARED_KEY) {
3060 if (trans_seq_no == 0x0002 &&
3061 auth->el_id == WLAN_EID_CHALLENGE) {
3062 send_authentication_request(priv, system, auth->chall_text, auth->chall_text_len);
3063 return;
3064 } else if (trans_seq_no == 0x0004) {
3065 should_associate = 1;
3066 }
3067 }
3068
3069 if (should_associate) {
3070 if (priv->station_was_associated) {
3071 atmel_enter_state(priv, STATION_STATE_REASSOCIATING);
3072 send_association_request(priv, 1);
3073 return;
3074 } else {
3075 atmel_enter_state(priv, STATION_STATE_ASSOCIATING);
3076 send_association_request(priv, 0);
3077 return;
3078 }
3079 }
3080 }
3081
3082 if (status == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
3083
3084
3085
3086 if (system == WLAN_AUTH_OPEN) {
3087 priv->CurrentAuthentTransactionSeqNum = 0x001;
3088 priv->exclude_unencrypted = 1;
3089 send_authentication_request(priv, WLAN_AUTH_SHARED_KEY, NULL, 0);
3090 return;
3091 } else if (system == WLAN_AUTH_SHARED_KEY
3092 && priv->wep_is_on) {
3093 priv->CurrentAuthentTransactionSeqNum = 0x001;
3094 priv->exclude_unencrypted = 0;
3095 send_authentication_request(priv, WLAN_AUTH_OPEN, NULL, 0);
3096 return;
3097 } else if (priv->connect_to_any_BSS) {
3098 int bss_index;
3099
3100 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3101
3102 if ((bss_index = retrieve_bss(priv)) != -1) {
3103 atmel_join_bss(priv, bss_index);
3104 return;
3105 }
3106 }
3107 }
3108
3109 priv->AuthenticationRequestRetryCnt = 0;
3110 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3111 priv->station_is_associated = 0;
3112}
3113
3114static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
3115{
3116 struct ass_resp_format {
3117 __le16 capability;
3118 __le16 status;
3119 __le16 ass_id;
3120 u8 el_id;
3121 u8 length;
3122 u8 rates[4];
3123 } *ass_resp = (struct ass_resp_format *)priv->rx_buf;
3124
3125 u16 status = le16_to_cpu(ass_resp->status);
3126 u16 ass_id = le16_to_cpu(ass_resp->ass_id);
3127 u16 rates_len = ass_resp->length > 4 ? 4 : ass_resp->length;
3128
3129 union iwreq_data wrqu;
3130
3131 if (frame_len < 8 + rates_len)
3132 return;
3133
3134 if (status == WLAN_STATUS_SUCCESS) {
3135 if (subtype == IEEE80211_STYPE_ASSOC_RESP)
3136 priv->AssociationRequestRetryCnt = 0;
3137 else
3138 priv->ReAssociationRequestRetryCnt = 0;
3139
3140 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3141 MAC_MGMT_MIB_STATION_ID_POS, ass_id & 0x3fff);
3142 atmel_set_mib(priv, Phy_Mib_Type,
3143 PHY_MIB_RATE_SET_POS, ass_resp->rates, rates_len);
3144 if (priv->power_mode == 0) {
3145 priv->listen_interval = 1;
3146 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3147 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3148 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3149 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3150 } else {
3151 priv->listen_interval = 2;
3152 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3153 MAC_MGMT_MIB_PS_MODE_POS, PS_MODE);
3154 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3155 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 2);
3156 }
3157
3158 priv->station_is_associated = 1;
3159 priv->station_was_associated = 1;
3160 atmel_enter_state(priv, STATION_STATE_READY);
3161
3162
3163 wrqu.data.length = 0;
3164 wrqu.data.flags = 0;
3165 memcpy(wrqu.ap_addr.sa_data, priv->CurrentBSSID, ETH_ALEN);
3166 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3167 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
3168
3169 return;
3170 }
3171
3172 if (subtype == IEEE80211_STYPE_ASSOC_RESP &&
3173 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3174 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
3175 priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3176 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3177 priv->AssociationRequestRetryCnt++;
3178 send_association_request(priv, 0);
3179 return;
3180 }
3181
3182 if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
3183 status != WLAN_STATUS_ASSOC_DENIED_RATES &&
3184 status != WLAN_STATUS_CAPS_UNSUPPORTED &&
3185 priv->ReAssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
3186 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3187 priv->ReAssociationRequestRetryCnt++;
3188 send_association_request(priv, 1);
3189 return;
3190 }
3191
3192 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3193 priv->station_is_associated = 0;
3194
3195 if (priv->connect_to_any_BSS) {
3196 int bss_index;
3197 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3198
3199 if ((bss_index = retrieve_bss(priv)) != -1)
3200 atmel_join_bss(priv, bss_index);
3201 }
3202}
3203
3204static void atmel_join_bss(struct atmel_private *priv, int bss_index)
3205{
3206 struct bss_info *bss = &priv->BSSinfo[bss_index];
3207
3208 memcpy(priv->CurrentBSSID, bss->BSSID, ETH_ALEN);
3209 memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
3210
3211
3212 if (priv->use_wpa)
3213 build_wpa_mib(priv);
3214
3215
3216
3217 if (bss->BSStype == IW_MODE_ADHOC &&
3218 priv->operating_mode != IW_MODE_ADHOC &&
3219 priv->power_mode) {
3220 priv->power_mode = 0;
3221 priv->listen_interval = 1;
3222 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type,
3223 MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
3224 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type,
3225 MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
3226 }
3227
3228 priv->operating_mode = bss->BSStype;
3229 priv->channel = bss->channel & 0x7f;
3230 priv->beacon_period = bss->beacon_period;
3231
3232 if (priv->preamble != bss->preamble) {
3233 priv->preamble = bss->preamble;
3234 atmel_set_mib8(priv, Local_Mib_Type,
3235 LOCAL_MIB_PREAMBLE_TYPE, bss->preamble);
3236 }
3237
3238 if (!priv->wep_is_on && bss->UsingWEP) {
3239 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3240 priv->station_is_associated = 0;
3241 return;
3242 }
3243
3244 if (priv->wep_is_on && !bss->UsingWEP) {
3245 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3246 priv->station_is_associated = 0;
3247 return;
3248 }
3249
3250 atmel_enter_state(priv, STATION_STATE_JOINNING);
3251
3252 if (priv->operating_mode == IW_MODE_INFRA)
3253 join(priv, BSS_TYPE_INFRASTRUCTURE);
3254 else
3255 join(priv, BSS_TYPE_AD_HOC);
3256}
3257
3258static void restart_search(struct atmel_private *priv)
3259{
3260 int bss_index;
3261
3262 if (!priv->connect_to_any_BSS) {
3263 atmel_scan(priv, 1);
3264 } else {
3265 priv->BSSinfo[(int)(priv->current_BSS)].channel |= 0x80;
3266
3267 if ((bss_index = retrieve_bss(priv)) != -1)
3268 atmel_join_bss(priv, bss_index);
3269 else
3270 atmel_scan(priv, 0);
3271 }
3272}
3273
3274static void smooth_rssi(struct atmel_private *priv, u8 rssi)
3275{
3276 u8 old = priv->wstats.qual.level;
3277 u8 max_rssi = 42;
3278
3279 switch (priv->firmware_type) {
3280 case ATMEL_FW_TYPE_502E:
3281 max_rssi = 63;
3282 break;
3283 default:
3284 break;
3285 }
3286
3287 rssi = rssi * 100 / max_rssi;
3288 if ((rssi + old) % 2)
3289 priv->wstats.qual.level = (rssi + old) / 2 + 1;
3290 else
3291 priv->wstats.qual.level = (rssi + old) / 2;
3292 priv->wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
3293 priv->wstats.qual.updated &= ~IW_QUAL_LEVEL_INVALID;
3294}
3295
3296static void atmel_smooth_qual(struct atmel_private *priv)
3297{
3298 unsigned long time_diff = (jiffies - priv->last_qual) / HZ;
3299 while (time_diff--) {
3300 priv->last_qual += HZ;
3301 priv->wstats.qual.qual = priv->wstats.qual.qual / 2;
3302 priv->wstats.qual.qual +=
3303 priv->beacons_this_sec * priv->beacon_period * (priv->wstats.qual.level + 100) / 4000;
3304 priv->beacons_this_sec = 0;
3305 }
3306 priv->wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
3307 priv->wstats.qual.updated &= ~IW_QUAL_QUAL_INVALID;
3308}
3309
3310
3311static void atmel_management_frame(struct atmel_private *priv,
3312 struct ieee80211_hdr *header,
3313 u16 frame_len, u8 rssi)
3314{
3315 u16 subtype;
3316
3317 subtype = le16_to_cpu(header->frame_control) & IEEE80211_FCTL_STYPE;
3318 switch (subtype) {
3319 case IEEE80211_STYPE_BEACON:
3320 case IEEE80211_STYPE_PROBE_RESP:
3321
3322
3323
3324 {
3325 struct beacon_format {
3326 __le64 timestamp;
3327 __le16 interval;
3328 __le16 capability;
3329 u8 ssid_el_id;
3330 u8 ssid_length;
3331
3332 u8 rates_el_id;
3333 u8 rates_length;
3334
3335 u8 ds_el_id;
3336 u8 ds_length;
3337
3338 } *beacon = (struct beacon_format *)priv->rx_buf;
3339
3340 u8 channel, rates_length, ssid_length;
3341 u64 timestamp = le64_to_cpu(beacon->timestamp);
3342 u16 beacon_interval = le16_to_cpu(beacon->interval);
3343 u16 capability = le16_to_cpu(beacon->capability);
3344 u8 *beaconp = priv->rx_buf;
3345 ssid_length = beacon->ssid_length;
3346
3347 if (frame_len < 14 || frame_len < ssid_length + 15)
3348 return;
3349 rates_length = beaconp[beacon->ssid_length + 15];
3350 if (frame_len < ssid_length + rates_length + 18)
3351 return;
3352 if (ssid_length > MAX_SSID_LENGTH)
3353 return;
3354 channel = beaconp[ssid_length + rates_length + 18];
3355
3356 if (priv->station_state == STATION_STATE_READY) {
3357 smooth_rssi(priv, rssi);
3358 if (is_frame_from_current_bss(priv, header)) {
3359 priv->beacons_this_sec++;
3360 atmel_smooth_qual(priv);
3361 if (priv->last_beacon_timestamp) {
3362
3363 u32 beacon_delay = timestamp - priv->last_beacon_timestamp;
3364 int beacons = beacon_delay / (beacon_interval * 1000);
3365 if (beacons > 1)
3366 priv->wstats.miss.beacon += beacons - 1;
3367 }
3368 priv->last_beacon_timestamp = timestamp;
3369 handle_beacon_probe(priv, capability, channel);
3370 }
3371 }
3372
3373 if (priv->station_state == STATION_STATE_SCANNING)
3374 store_bss_info(priv, header, capability,
3375 beacon_interval, channel, rssi,
3376 ssid_length,
3377 &beacon->rates_el_id,
3378 subtype == IEEE80211_STYPE_BEACON);
3379 }
3380 break;
3381
3382 case IEEE80211_STYPE_AUTH:
3383
3384 if (priv->station_state == STATION_STATE_AUTHENTICATING)
3385 authenticate(priv, frame_len);
3386
3387 break;
3388
3389 case IEEE80211_STYPE_ASSOC_RESP:
3390 case IEEE80211_STYPE_REASSOC_RESP:
3391
3392 if (priv->station_state == STATION_STATE_ASSOCIATING ||
3393 priv->station_state == STATION_STATE_REASSOCIATING)
3394 associate(priv, frame_len, subtype);
3395
3396 break;
3397
3398 case IEEE80211_STYPE_DISASSOC:
3399 if (priv->station_is_associated &&
3400 priv->operating_mode == IW_MODE_INFRA &&
3401 is_frame_from_current_bss(priv, header)) {
3402 priv->station_was_associated = 0;
3403 priv->station_is_associated = 0;
3404
3405 atmel_enter_state(priv, STATION_STATE_JOINNING);
3406 join(priv, BSS_TYPE_INFRASTRUCTURE);
3407 }
3408
3409 break;
3410
3411 case IEEE80211_STYPE_DEAUTH:
3412 if (priv->operating_mode == IW_MODE_INFRA &&
3413 is_frame_from_current_bss(priv, header)) {
3414 priv->station_was_associated = 0;
3415
3416 atmel_enter_state(priv, STATION_STATE_JOINNING);
3417 join(priv, BSS_TYPE_INFRASTRUCTURE);
3418 }
3419
3420 break;
3421 }
3422}
3423
3424
3425static void atmel_management_timer(struct timer_list *t)
3426{
3427 struct atmel_private *priv = from_timer(priv, t, management_timer);
3428 unsigned long flags;
3429
3430
3431 if (priv->card && priv->present_callback &&
3432 !(*priv->present_callback)(priv->card))
3433 return;
3434
3435 spin_lock_irqsave(&priv->irqlock, flags);
3436
3437 switch (priv->station_state) {
3438
3439 case STATION_STATE_AUTHENTICATING:
3440 if (priv->AuthenticationRequestRetryCnt >= MAX_AUTHENTICATION_RETRIES) {
3441 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3442 priv->station_is_associated = 0;
3443 priv->AuthenticationRequestRetryCnt = 0;
3444 restart_search(priv);
3445 } else {
3446 int auth = WLAN_AUTH_OPEN;
3447 priv->AuthenticationRequestRetryCnt++;
3448 priv->CurrentAuthentTransactionSeqNum = 0x0001;
3449 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3450 if (priv->wep_is_on && priv->exclude_unencrypted)
3451 auth = WLAN_AUTH_SHARED_KEY;
3452 send_authentication_request(priv, auth, NULL, 0);
3453 }
3454 break;
3455
3456 case STATION_STATE_ASSOCIATING:
3457 if (priv->AssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3458 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3459 priv->station_is_associated = 0;
3460 priv->AssociationRequestRetryCnt = 0;
3461 restart_search(priv);
3462 } else {
3463 priv->AssociationRequestRetryCnt++;
3464 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3465 send_association_request(priv, 0);
3466 }
3467 break;
3468
3469 case STATION_STATE_REASSOCIATING:
3470 if (priv->ReAssociationRequestRetryCnt == MAX_ASSOCIATION_RETRIES) {
3471 atmel_enter_state(priv, STATION_STATE_MGMT_ERROR);
3472 priv->station_is_associated = 0;
3473 priv->ReAssociationRequestRetryCnt = 0;
3474 restart_search(priv);
3475 } else {
3476 priv->ReAssociationRequestRetryCnt++;
3477 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3478 send_association_request(priv, 1);
3479 }
3480 break;
3481
3482 default:
3483 break;
3484 }
3485
3486 spin_unlock_irqrestore(&priv->irqlock, flags);
3487}
3488
3489static void atmel_command_irq(struct atmel_private *priv)
3490{
3491 u8 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
3492 u8 command = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET));
3493 int fast_scan;
3494 union iwreq_data wrqu;
3495
3496 if (status == CMD_STATUS_IDLE ||
3497 status == CMD_STATUS_IN_PROGRESS)
3498 return;
3499
3500 switch (command) {
3501 case CMD_Start:
3502 if (status == CMD_STATUS_COMPLETE) {
3503 priv->station_was_associated = priv->station_is_associated;
3504 atmel_get_mib(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_BSSID_POS,
3505 (u8 *)priv->CurrentBSSID, 6);
3506 atmel_enter_state(priv, STATION_STATE_READY);
3507 }
3508 break;
3509
3510 case CMD_Scan:
3511 fast_scan = priv->fast_scan;
3512 priv->fast_scan = 0;
3513
3514 if (status != CMD_STATUS_COMPLETE) {
3515 atmel_scan(priv, 1);
3516 } else {
3517 int bss_index = retrieve_bss(priv);
3518 int notify_scan_complete = 1;
3519 if (bss_index != -1) {
3520 atmel_join_bss(priv, bss_index);
3521 } else if (priv->operating_mode == IW_MODE_ADHOC &&
3522 priv->SSID_size != 0) {
3523 start(priv, BSS_TYPE_AD_HOC);
3524 } else {
3525 priv->fast_scan = !fast_scan;
3526 atmel_scan(priv, 1);
3527 notify_scan_complete = 0;
3528 }
3529 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3530 if (notify_scan_complete) {
3531 wrqu.data.length = 0;
3532 wrqu.data.flags = 0;
3533 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
3534 }
3535 }
3536 break;
3537
3538 case CMD_SiteSurvey:
3539 priv->fast_scan = 0;
3540
3541 if (status != CMD_STATUS_COMPLETE)
3542 return;
3543
3544 priv->site_survey_state = SITE_SURVEY_COMPLETED;
3545 if (priv->station_is_associated) {
3546 atmel_enter_state(priv, STATION_STATE_READY);
3547 wrqu.data.length = 0;
3548 wrqu.data.flags = 0;
3549 wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
3550 } else {
3551 atmel_scan(priv, 1);
3552 }
3553 break;
3554
3555 case CMD_Join:
3556 if (status == CMD_STATUS_COMPLETE) {
3557 if (priv->operating_mode == IW_MODE_ADHOC) {
3558 priv->station_was_associated = priv->station_is_associated;
3559 atmel_enter_state(priv, STATION_STATE_READY);
3560 } else {
3561 int auth = WLAN_AUTH_OPEN;
3562 priv->AuthenticationRequestRetryCnt = 0;
3563 atmel_enter_state(priv, STATION_STATE_AUTHENTICATING);
3564
3565 mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
3566 priv->CurrentAuthentTransactionSeqNum = 0x0001;
3567 if (priv->wep_is_on && priv->exclude_unencrypted)
3568 auth = WLAN_AUTH_SHARED_KEY;
3569 send_authentication_request(priv, auth, NULL, 0);
3570 }
3571 return;
3572 }
3573
3574 atmel_scan(priv, 1);
3575 }
3576}
3577
3578static int atmel_wakeup_firmware(struct atmel_private *priv)
3579{
3580 struct host_info_struct *iface = &priv->host_info;
3581 u16 mr1, mr3;
3582 int i;
3583
3584 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3585 atmel_set_gcr(priv->dev, GCR_REMAP);
3586
3587
3588 atmel_clear_gcr(priv->dev, 0x0040);
3589 atmel_write16(priv->dev, BSR, BSS_SRAM);
3590
3591 if (priv->card_type == CARD_TYPE_SPI_FLASH)
3592 mdelay(100);
3593
3594
3595 for (i = LOOP_RETRY_LIMIT; i; i--) {
3596 mr1 = atmel_read16(priv->dev, MR1);
3597 mr3 = atmel_read16(priv->dev, MR3);
3598
3599 if (mr3 & MAC_BOOT_COMPLETE)
3600 break;
3601 if (mr1 & MAC_BOOT_COMPLETE &&
3602 priv->bus_type == BUS_TYPE_PCCARD)
3603 break;
3604 }
3605
3606 if (i == 0) {
3607 printk(KERN_ALERT "%s: MAC failed to boot.\n", priv->dev->name);
3608 return -EIO;
3609 }
3610
3611 if ((priv->host_info_base = atmel_read16(priv->dev, MR2)) == 0xffff) {
3612 printk(KERN_ALERT "%s: card missing.\n", priv->dev->name);
3613 return -ENODEV;
3614 }
3615
3616
3617
3618
3619
3620
3621 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET), FUNC_CTRL_INIT_COMPLETE);
3622
3623 for (i = LOOP_RETRY_LIMIT; i; i--) {
3624 mr1 = atmel_read16(priv->dev, MR1);
3625 mr3 = atmel_read16(priv->dev, MR3);
3626
3627 if (mr3 & MAC_INIT_COMPLETE)
3628 break;
3629 if (mr1 & MAC_INIT_COMPLETE &&
3630 priv->bus_type == BUS_TYPE_PCCARD)
3631 break;
3632 }
3633
3634 if (i == 0) {
3635 printk(KERN_ALERT "%s: MAC failed to initialise.\n",
3636 priv->dev->name);
3637 return -EIO;
3638 }
3639
3640
3641 if ((mr3 & MAC_INIT_COMPLETE) &&
3642 !(atmel_read16(priv->dev, MR3) & MAC_INIT_OK)) {
3643 printk(KERN_ALERT "%s: MAC failed MR3 self-test.\n", priv->dev->name);
3644 return -EIO;
3645 }
3646 if ((mr1 & MAC_INIT_COMPLETE) &&
3647 !(atmel_read16(priv->dev, MR1) & MAC_INIT_OK)) {
3648 printk(KERN_ALERT "%s: MAC failed MR1 self-test.\n", priv->dev->name);
3649 return -EIO;
3650 }
3651
3652 atmel_copy_to_host(priv->dev, (unsigned char *)iface,
3653 priv->host_info_base, sizeof(*iface));
3654
3655 iface->tx_buff_pos = le16_to_cpu(iface->tx_buff_pos);
3656 iface->tx_buff_size = le16_to_cpu(iface->tx_buff_size);
3657 iface->tx_desc_pos = le16_to_cpu(iface->tx_desc_pos);
3658 iface->tx_desc_count = le16_to_cpu(iface->tx_desc_count);
3659 iface->rx_buff_pos = le16_to_cpu(iface->rx_buff_pos);
3660 iface->rx_buff_size = le16_to_cpu(iface->rx_buff_size);
3661 iface->rx_desc_pos = le16_to_cpu(iface->rx_desc_pos);
3662 iface->rx_desc_count = le16_to_cpu(iface->rx_desc_count);
3663 iface->build_version = le16_to_cpu(iface->build_version);
3664 iface->command_pos = le16_to_cpu(iface->command_pos);
3665 iface->major_version = le16_to_cpu(iface->major_version);
3666 iface->minor_version = le16_to_cpu(iface->minor_version);
3667 iface->func_ctrl = le16_to_cpu(iface->func_ctrl);
3668 iface->mac_status = le16_to_cpu(iface->mac_status);
3669
3670 return 0;
3671}
3672
3673
3674static int probe_atmel_card(struct net_device *dev)
3675{
3676 int rc = 0;
3677 struct atmel_private *priv = netdev_priv(dev);
3678
3679
3680 if (priv->bus_type == BUS_TYPE_PCCARD)
3681 atmel_write16(dev, GCR, 0x0060);
3682
3683 atmel_write16(dev, GCR, 0x0040);
3684 mdelay(500);
3685
3686 if (atmel_read16(dev, MR2) == 0) {
3687
3688
3689 int i;
3690 priv->card_type = CARD_TYPE_EEPROM;
3691 atmel_write16(dev, BSR, BSS_IRAM);
3692 atmel_copy_to_card(dev, 0, mac_reader, sizeof(mac_reader));
3693 atmel_set_gcr(dev, GCR_REMAP);
3694 atmel_clear_gcr(priv->dev, 0x0040);
3695 atmel_write16(dev, BSR, BSS_SRAM);
3696 for (i = LOOP_RETRY_LIMIT; i; i--)
3697 if (atmel_read16(dev, MR3) & MAC_BOOT_COMPLETE)
3698 break;
3699 if (i == 0) {
3700 printk(KERN_ALERT "%s: MAC failed to boot MAC address reader.\n", dev->name);
3701 } else {
3702 atmel_copy_to_host(dev, dev->dev_addr, atmel_read16(dev, MR2), 6);
3703
3704
3705 if (priv->bus_type == BUS_TYPE_PCCARD)
3706 atmel_write16(dev, GCR, 0x0060);
3707 atmel_write16(dev, GCR, 0x0040);
3708 rc = 1;
3709 }
3710 } else if (atmel_read16(dev, MR4) == 0) {
3711
3712 priv->card_type = CARD_TYPE_PARALLEL_FLASH;
3713 atmel_write16(dev, BSR, 1);
3714 atmel_copy_to_host(dev, dev->dev_addr, 0xc000, 6);
3715 atmel_write16(dev, BSR, 0x200);
3716 rc = 1;
3717 } else {
3718
3719
3720 priv->card_type = CARD_TYPE_SPI_FLASH;
3721 if (atmel_wakeup_firmware(priv) == 0) {
3722 atmel_get_mib(priv, Mac_Address_Mib_Type, 0, dev->dev_addr, 6);
3723
3724
3725
3726 if (priv->bus_type == BUS_TYPE_PCCARD)
3727 atmel_write16(dev, GCR, 0x0060);
3728 atmel_write16(dev, GCR, 0x0040);
3729 rc = 1;
3730 }
3731 }
3732
3733 if (rc) {
3734 if (dev->dev_addr[0] == 0xFF) {
3735 static const u8 default_mac[] = {
3736 0x00, 0x04, 0x25, 0x00, 0x00, 0x00
3737 };
3738 printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
3739 memcpy(dev->dev_addr, default_mac, ETH_ALEN);
3740 }
3741 }
3742
3743 return rc;
3744}
3745
3746
3747
3748
3749static void build_wep_mib(struct atmel_private *priv)
3750{
3751 struct {
3752 u8 wep_is_on;
3753 u8 default_key;
3754 u8 reserved;
3755 u8 exclude_unencrypted;
3756
3757 u32 WEPICV_error_count;
3758 u32 WEP_excluded_count;
3759
3760 u8 wep_keys[MAX_ENCRYPTION_KEYS][13];
3761 u8 encryption_level;
3762 u8 reserved2[3];
3763 } mib;
3764 int i;
3765
3766 mib.wep_is_on = priv->wep_is_on;
3767 if (priv->wep_is_on) {
3768 if (priv->wep_key_len[priv->default_key] > 5)
3769 mib.encryption_level = 2;
3770 else
3771 mib.encryption_level = 1;
3772 } else {
3773 mib.encryption_level = 0;
3774 }
3775
3776 mib.default_key = priv->default_key;
3777 mib.exclude_unencrypted = priv->exclude_unencrypted;
3778
3779 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++)
3780 memcpy(mib.wep_keys[i], priv->wep_keys[i], 13);
3781
3782 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3783}
3784
3785static void build_wpa_mib(struct atmel_private *priv)
3786{
3787
3788
3789 struct {
3790 u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
3791 u8 receiver_address[ETH_ALEN];
3792 u8 wep_is_on;
3793 u8 default_key;
3794 u8 group_key;
3795 u8 exclude_unencrypted;
3796 u8 encryption_type;
3797 u8 reserved;
3798
3799 u32 WEPICV_error_count;
3800 u32 WEP_excluded_count;
3801
3802 u8 key_RSC[4][8];
3803 } mib;
3804
3805 int i;
3806
3807 mib.wep_is_on = priv->wep_is_on;
3808 mib.exclude_unencrypted = priv->exclude_unencrypted;
3809 memcpy(mib.receiver_address, priv->CurrentBSSID, ETH_ALEN);
3810
3811
3812 memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
3813
3814 if (priv->wep_is_on) {
3815
3816
3817
3818 memset(mib.key_RSC, 0, sizeof(mib.key_RSC));
3819
3820 mib.default_key = mib.group_key = 255;
3821 for (i = 0; i < MAX_ENCRYPTION_KEYS; i++) {
3822 if (priv->wep_key_len[i] > 0) {
3823 memcpy(mib.cipher_default_key_value[i], priv->wep_keys[i], MAX_ENCRYPTION_KEY_SIZE);
3824 if (i == priv->default_key) {
3825 mib.default_key = i;
3826 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 7;
3827 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->pairwise_cipher_suite;
3828 } else {
3829 mib.group_key = i;
3830 priv->group_cipher_suite = priv->pairwise_cipher_suite;
3831 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-1] = 1;
3832 mib.cipher_default_key_value[i][MAX_ENCRYPTION_KEY_SIZE-2] = priv->group_cipher_suite;
3833 }
3834 }
3835 }
3836 if (mib.default_key == 255)
3837 mib.default_key = mib.group_key != 255 ? mib.group_key : 0;
3838 if (mib.group_key == 255)
3839 mib.group_key = mib.default_key;
3840
3841 }
3842
3843 atmel_set_mib(priv, Mac_Wep_Mib_Type, 0, (u8 *)&mib, sizeof(mib));
3844}
3845
3846static int reset_atmel_card(struct net_device *dev)
3847{
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862 struct atmel_private *priv = netdev_priv(dev);
3863 u8 configuration;
3864 int old_state = priv->station_state;
3865 int err = 0;
3866
3867
3868
3869
3870 static char *firmware_modifier[] = {
3871 "-wpa",
3872 "",
3873 NULL
3874 };
3875
3876
3877 if (priv->bus_type == BUS_TYPE_PCCARD)
3878 atmel_write16(priv->dev, GCR, 0x0060);
3879
3880
3881 atmel_write16(priv->dev, GCR, 0x0040);
3882
3883 if (priv->card_type == CARD_TYPE_EEPROM) {
3884
3885 const struct firmware *fw_entry = NULL;
3886 const unsigned char *fw;
3887 int len = priv->firmware_length;
3888 if (!(fw = priv->firmware)) {
3889 if (priv->firmware_type == ATMEL_FW_TYPE_NONE) {
3890 if (strlen(priv->firmware_id) == 0) {
3891 printk(KERN_INFO
3892 "%s: card type is unknown: assuming at76c502 firmware is OK.\n",
3893 dev->name);
3894 printk(KERN_INFO
3895 "%s: if not, use the firmware= module parameter.\n",
3896 dev->name);
3897 strcpy(priv->firmware_id, "atmel_at76c502.bin");
3898 }
3899 err = request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev);
3900 if (err != 0) {
3901 printk(KERN_ALERT
3902 "%s: firmware %s is missing, cannot continue.\n",
3903 dev->name, priv->firmware_id);
3904 return err;
3905 }
3906 } else {
3907 int fw_index = 0;
3908 int success = 0;
3909
3910
3911 while (fw_table[fw_index].fw_type != priv->firmware_type
3912 && fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE)
3913 fw_index++;
3914
3915
3916 if (fw_table[fw_index].fw_type != ATMEL_FW_TYPE_NONE) {
3917 int i;
3918 for (i = 0; firmware_modifier[i]; i++) {
3919 snprintf(priv->firmware_id, 32, "%s%s.%s", fw_table[fw_index].fw_file,
3920 firmware_modifier[i], fw_table[fw_index].fw_file_ext);
3921 priv->firmware_id[31] = '\0';
3922 if (request_firmware(&fw_entry, priv->firmware_id, priv->sys_dev) == 0) {
3923 success = 1;
3924 break;
3925 }
3926 }
3927 }
3928 if (!success) {
3929 printk(KERN_ALERT
3930 "%s: firmware %s is missing, cannot start.\n",
3931 dev->name, priv->firmware_id);
3932 priv->firmware_id[0] = '\0';
3933 return -ENOENT;
3934 }
3935 }
3936
3937 fw = fw_entry->data;
3938 len = fw_entry->size;
3939 }
3940
3941 if (len <= 0x6000) {
3942 atmel_write16(priv->dev, BSR, BSS_IRAM);
3943 atmel_copy_to_card(priv->dev, 0, fw, len);
3944 atmel_set_gcr(priv->dev, GCR_REMAP);
3945 } else {
3946
3947 atmel_set_gcr(priv->dev, GCR_REMAP);
3948 atmel_write16(priv->dev, BSR, BSS_IRAM);
3949 atmel_copy_to_card(priv->dev, 0, fw, 0x6000);
3950 atmel_write16(priv->dev, BSR, 0x2ff);
3951 atmel_copy_to_card(priv->dev, 0x8000, &fw[0x6000], len - 0x6000);
3952 }
3953
3954 release_firmware(fw_entry);
3955 }
3956
3957 err = atmel_wakeup_firmware(priv);
3958 if (err != 0)
3959 return err;
3960
3961
3962
3963
3964
3965
3966 priv->use_wpa = (priv->host_info.major_version == 4);
3967 priv->radio_on_broken = (priv->host_info.major_version == 5);
3968
3969
3970 atmel_wmem8(priv, atmel_hi(priv, IFACE_INT_MASK_OFFSET), 0xff);
3971
3972
3973 atmel_wmem8(priv, atmel_tx(priv, TX_DESC_FLAGS_OFFSET, 0), 0);
3974 atmel_wmem32(priv, atmel_tx(priv, TX_DESC_NEXT_OFFSET, 0), 0x80000000L);
3975 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_POS_OFFSET, 0), 0);
3976 atmel_wmem16(priv, atmel_tx(priv, TX_DESC_SIZE_OFFSET, 0), 0);
3977
3978 priv->tx_desc_free = priv->host_info.tx_desc_count;
3979 priv->tx_desc_head = 0;
3980 priv->tx_desc_tail = 0;
3981 priv->tx_desc_previous = 0;
3982 priv->tx_free_mem = priv->host_info.tx_buff_size;
3983 priv->tx_buff_head = 0;
3984 priv->tx_buff_tail = 0;
3985
3986 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3987 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
3988 configuration | FUNC_CTRL_TxENABLE);
3989
3990
3991 priv->rx_desc_head = 0;
3992
3993 configuration = atmel_rmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET));
3994 atmel_wmem8(priv, atmel_hi(priv, IFACE_FUNC_CTRL_OFFSET),
3995 configuration | FUNC_CTRL_RxENABLE);
3996
3997 if (!priv->radio_on_broken) {
3998 if (atmel_send_command_wait(priv, CMD_EnableRadio, NULL, 0) ==
3999 CMD_STATUS_REJECTED_RADIO_OFF) {
4000 printk(KERN_INFO "%s: cannot turn the radio on.\n",
4001 dev->name);
4002 return -EIO;
4003 }
4004 }
4005
4006
4007 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_AUTO_TX_RATE_POS, priv->auto_tx_rate);
4008 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_TX_PROMISCUOUS_POS, PROM_MODE_OFF);
4009 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_RTS_THRESHOLD_POS, priv->rts_threshold);
4010 atmel_set_mib16(priv, Mac_Mib_Type, MAC_MIB_FRAG_THRESHOLD_POS, priv->frag_threshold);
4011 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_SHORT_RETRY_POS, priv->short_retry);
4012 atmel_set_mib8(priv, Mac_Mib_Type, MAC_MIB_LONG_RETRY_POS, priv->long_retry);
4013 atmel_set_mib8(priv, Local_Mib_Type, LOCAL_MIB_PREAMBLE_TYPE, priv->preamble);
4014 atmel_set_mib(priv, Mac_Address_Mib_Type, MAC_ADDR_MIB_MAC_ADDR_POS,
4015 priv->dev->dev_addr, 6);
4016 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_PS_MODE_POS, ACTIVE_MODE);
4017 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_LISTEN_INTERVAL_POS, 1);
4018 atmel_set_mib16(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_BEACON_PER_POS, priv->default_beacon_period);
4019 atmel_set_mib(priv, Phy_Mib_Type, PHY_MIB_RATE_SET_POS, atmel_basic_rates, 4);
4020 atmel_set_mib8(priv, Mac_Mgmt_Mib_Type, MAC_MGMT_MIB_CUR_PRIVACY_POS, priv->wep_is_on);
4021 if (priv->use_wpa)
4022 build_wpa_mib(priv);
4023 else
4024 build_wep_mib(priv);
4025
4026 if (old_state == STATION_STATE_READY) {
4027 union iwreq_data wrqu;
4028
4029 wrqu.data.length = 0;
4030 wrqu.data.flags = 0;
4031 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
4032 eth_zero_addr(wrqu.ap_addr.sa_data);
4033 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
4034 }
4035
4036 return 0;
4037}
4038
4039static void atmel_send_command(struct atmel_private *priv, int command,
4040 void *cmd, int cmd_size)
4041{
4042 if (cmd)
4043 atmel_copy_to_card(priv->dev, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET),
4044 cmd, cmd_size);
4045
4046 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_COMMAND_OFFSET), command);
4047 atmel_wmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET), 0);
4048}
4049
4050static int atmel_send_command_wait(struct atmel_private *priv, int command,
4051 void *cmd, int cmd_size)
4052{
4053 int i, status;
4054
4055 atmel_send_command(priv, command, cmd, cmd_size);
4056
4057 for (i = 5000; i; i--) {
4058 status = atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_STATUS_OFFSET));
4059 if (status != CMD_STATUS_IDLE &&
4060 status != CMD_STATUS_IN_PROGRESS)
4061 break;
4062 udelay(20);
4063 }
4064
4065 if (i == 0) {
4066 printk(KERN_ALERT "%s: failed to contact MAC.\n", priv->dev->name);
4067 status = CMD_STATUS_HOST_ERROR;
4068 } else {
4069 if (command != CMD_EnableRadio)
4070 status = CMD_STATUS_COMPLETE;
4071 }
4072
4073 return status;
4074}
4075
4076static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index)
4077{
4078 struct get_set_mib m;
4079 m.type = type;
4080 m.size = 1;
4081 m.index = index;
4082
4083 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4084 return atmel_rmem8(priv, atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE));
4085}
4086
4087static void atmel_set_mib8(struct atmel_private *priv, u8 type, u8 index, u8 data)
4088{
4089 struct get_set_mib m;
4090 m.type = type;
4091 m.size = 1;
4092 m.index = index;
4093 m.data[0] = data;
4094
4095 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 1);
4096}
4097
4098static void atmel_set_mib16(struct atmel_private *priv, u8 type, u8 index,
4099 u16 data)
4100{
4101 struct get_set_mib m;
4102 m.type = type;
4103 m.size = 2;
4104 m.index = index;
4105 m.data[0] = data;
4106 m.data[1] = data >> 8;
4107
4108 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + 2);
4109}
4110
4111static void atmel_set_mib(struct atmel_private *priv, u8 type, u8 index,
4112 u8 *data, int data_len)
4113{
4114 struct get_set_mib m;
4115 m.type = type;
4116 m.size = data_len;
4117 m.index = index;
4118
4119 if (data_len > MIB_MAX_DATA_BYTES)
4120 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4121
4122 memcpy(m.data, data, data_len);
4123 atmel_send_command_wait(priv, CMD_Set_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4124}
4125
4126static void atmel_get_mib(struct atmel_private *priv, u8 type, u8 index,
4127 u8 *data, int data_len)
4128{
4129 struct get_set_mib m;
4130 m.type = type;
4131 m.size = data_len;
4132 m.index = index;
4133
4134 if (data_len > MIB_MAX_DATA_BYTES)
4135 printk(KERN_ALERT "%s: MIB buffer too small.\n", priv->dev->name);
4136
4137 atmel_send_command_wait(priv, CMD_Get_MIB_Vars, &m, MIB_HEADER_SIZE + data_len);
4138 atmel_copy_to_host(priv->dev, data,
4139 atmel_co(priv, CMD_BLOCK_PARAMETERS_OFFSET + MIB_HEADER_SIZE), data_len);
4140}
4141
4142static void atmel_writeAR(struct net_device *dev, u16 data)
4143{
4144 int i;
4145 outw(data, dev->base_addr + AR);
4146
4147 for (i = 0; data != inw(dev->base_addr + AR) && i < 10; i++)
4148 outw(data, dev->base_addr + AR);
4149}
4150
4151static void atmel_copy_to_card(struct net_device *dev, u16 dest,
4152 const unsigned char *src, u16 len)
4153{
4154 int i;
4155 atmel_writeAR(dev, dest);
4156 if (dest % 2) {
4157 atmel_write8(dev, DR, *src);
4158 src++; len--;
4159 }
4160 for (i = len; i > 1 ; i -= 2) {
4161 u8 lb = *src++;
4162 u8 hb = *src++;
4163 atmel_write16(dev, DR, lb | (hb << 8));
4164 }
4165 if (i)
4166 atmel_write8(dev, DR, *src);
4167}
4168
4169static void atmel_copy_to_host(struct net_device *dev, unsigned char *dest,
4170 u16 src, u16 len)
4171{
4172 int i;
4173 atmel_writeAR(dev, src);
4174 if (src % 2) {
4175 *dest = atmel_read8(dev, DR);
4176 dest++; len--;
4177 }
4178 for (i = len; i > 1 ; i -= 2) {
4179 u16 hw = atmel_read16(dev, DR);
4180 *dest++ = hw;
4181 *dest++ = hw >> 8;
4182 }
4183 if (i)
4184 *dest = atmel_read8(dev, DR);
4185}
4186
4187static void atmel_set_gcr(struct net_device *dev, u16 mask)
4188{
4189 outw(inw(dev->base_addr + GCR) | mask, dev->base_addr + GCR);
4190}
4191
4192static void atmel_clear_gcr(struct net_device *dev, u16 mask)
4193{
4194 outw(inw(dev->base_addr + GCR) & ~mask, dev->base_addr + GCR);
4195}
4196
4197static int atmel_lock_mac(struct atmel_private *priv)
4198{
4199 int i, j = 20;
4200 retry:
4201 for (i = 5000; i; i--) {
4202 if (!atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET)))
4203 break;
4204 udelay(20);
4205 }
4206
4207 if (!i)
4208 return 0;
4209
4210 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 1);
4211 if (atmel_rmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_HOST_OFFSET))) {
4212 atmel_wmem8(priv, atmel_hi(priv, IFACE_LOCKOUT_MAC_OFFSET), 0);
4213 if (!j--)
4214 return 0;
4215 goto retry;
4216 }
4217
4218 return 1;
4219}
4220
4221static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data)
4222{
4223 atmel_writeAR(priv->dev, pos);
4224 atmel_write16(priv->dev, DR, data);
4225 atmel_write16(priv->dev, DR, data >> 16);
4226}
4227
4228
4229
4230
4231#if 0
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264 .org 0
4265 .set MRBASE, 0x8000000
4266 .set CPSR_INITIAL, 0xD3
4267 .set CPSR_USER, 0xD1
4268 .set SRAM_BASE, 0x02000000
4269 .set SP_BASE, 0x0F300000
4270 .set UNK_BASE, 0x0F000000
4271 .set SPI_CGEN_BASE, 0x0E000000
4272 .set UNK3_BASE, 0x02014000
4273 .set STACK_BASE, 0x5600
4274 .set SP_SR, 0x10
4275 .set SP_TDRE, 2
4276 .set SP_RDRF, 1
4277 .set SP_SWRST, 0x80
4278 .set SP_SPIEN, 0x1
4279 .set SP_CR, 0
4280 .set SP_MR, 4
4281 .set SP_RDR, 0x08
4282 .set SP_TDR, 0x0C
4283 .set SP_CSR0, 0x30
4284 .set SP_CSR1, 0x34
4285 .set SP_CSR2, 0x38
4286 .set SP_CSR3, 0x3C
4287 .set NVRAM_CMD_RDSR, 5
4288 .set NVRAM_CMD_READ, 3
4289 .set NVRAM_SR_RDY, 1
4290 .set SPI_8CLOCKS, 0xFF
4291
4292
4293
4294
4295
4296
4297 .set NVRAM_SCRATCH, 0x02000100
4298 .set NVRAM_IMAGE, 0x02000200
4299 .set NVRAM_LENGTH, 0x0200
4300 .set MAC_ADDRESS_MIB, SRAM_BASE
4301 .set MAC_ADDRESS_LENGTH, 6
4302 .set MAC_BOOT_FLAG, 0x10
4303 .set MR1, 0
4304 .set MR2, 4
4305 .set MR3, 8
4306 .set MR4, 0xC
4307RESET_VECTOR:
4308 b RESET_HANDLER
4309UNDEF_VECTOR:
4310 b HALT1
4311SWI_VECTOR:
4312 b HALT1
4313IABORT_VECTOR:
4314 b HALT1
4315DABORT_VECTOR:
4316RESERVED_VECTOR:
4317 b HALT1
4318IRQ_VECTOR:
4319 b HALT1
4320FIQ_VECTOR:
4321 b HALT1
4322HALT1: b HALT1
4323RESET_HANDLER:
4324 mov r0, #CPSR_INITIAL
4325 msr CPSR_c, r0
4326
4327
4328 ldr r0, =SPI_CGEN_BASE
4329 mov r1, #0
4330 mov r1, r1, lsl #3
4331 orr r1, r1, #0
4332 str r1, [r0]
4333 ldr r1, [r0, #28]
4334 bic r1, r1, #16
4335 str r1, [r0, #28]
4336 mov r1, #1
4337 str r1, [r0, #8]
4338
4339 ldr r0, =MRBASE
4340 mov r1, #0
4341 strh r1, [r0, #MR1]
4342 strh r1, [r0, #MR2]
4343 strh r1, [r0, #MR3]
4344 strh r1, [r0, #MR4]
4345
4346 mov sp, #STACK_BASE
4347 bl SP_INIT
4348 mov r0, #10
4349 bl DELAY9
4350 bl GET_MAC_ADDR
4351 bl GET_WHOLE_NVRAM
4352 ldr r0, =MRBASE
4353 ldr r1, =MAC_ADDRESS_MIB
4354 strh r1, [r0, #MR2]
4355 ldr r1, =NVRAM_IMAGE
4356 strh r1, [r0, #MR4]
4357 mov r1, #MAC_BOOT_FLAG
4358 strh r1, [r0, #MR3]
4359HALT2: b HALT2
4360.func Get_Whole_NVRAM, GET_WHOLE_NVRAM
4361GET_WHOLE_NVRAM:
4362 stmdb sp!, {lr}
4363 mov r2, #0
4364 mov r3, #NVRAM_LENGTH
4365 mov r1, #0
4366 ldr r0, =NVRAM_IMAGE
4367 bl NVRAM_XFER
4368 ldmia sp!, {lr}
4369 bx lr
4370.endfunc
4371
4372.func Get_MAC_Addr, GET_MAC_ADDR
4373GET_MAC_ADDR:
4374 stmdb sp!, {lr}
4375 mov r2, #0x120
4376 mov r3, #MAC_ADDRESS_LENGTH
4377 mov r1, #0
4378 ldr r0, =MAC_ADDRESS_MIB
4379 bl NVRAM_XFER
4380 ldmia sp!, {lr}
4381 bx lr
4382.endfunc
4383.ltorg
4384.func Delay9, DELAY9
4385DELAY9:
4386 adds r0, r0, r0, LSL #3
4387DELAYLOOP:
4388 beq DELAY9_done
4389 subs r0, r0, #1
4390 b DELAYLOOP
4391DELAY9_done:
4392 bx lr
4393.endfunc
4394
4395.func SP_Init, SP_INIT
4396SP_INIT:
4397 mov r1, #SP_SWRST
4398 ldr r0, =SP_BASE
4399 str r1, [r0, #SP_CR]
4400 mov r1, #0
4401 str r1, [r0, #SP_CR]
4402 mov r1, #SP_SPIEN
4403 str r1, [r0, #SP_MR]
4404 str r1, [r0, #SP_CR]
4405
4406
4407 ldr r3, =SPI_CGEN_BASE
4408 ldr r1, [r3, #28]
4409 orr r1, r1, #0x2000
4410 str r1, [r3, #28]
4411
4412 ldr r1, =0x2000c01
4413 str r1, [r0, #SP_CSR0]
4414 ldr r1, =0x2000201
4415 str r1, [r0, #SP_CSR1]
4416 str r1, [r0, #SP_CSR2]
4417 str r1, [r0, #SP_CSR3]
4418 ldr r1, [r0, #SP_SR]
4419 ldr r0, [r0, #SP_RDR]
4420 bx lr
4421.endfunc
4422.func NVRAM_Init, NVRAM_INIT
4423NVRAM_INIT:
4424 ldr r1, =SP_BASE
4425 ldr r0, [r1, #SP_RDR]
4426 mov r0, #NVRAM_CMD_RDSR
4427 str r0, [r1, #SP_TDR]
4428SP_loop1:
4429 ldr r0, [r1, #SP_SR]
4430 tst r0, #SP_TDRE
4431 beq SP_loop1
4432
4433 mov r0, #SPI_8CLOCKS
4434 str r0, [r1, #SP_TDR]
4435SP_loop2:
4436 ldr r0, [r1, #SP_SR]
4437 tst r0, #SP_TDRE
4438 beq SP_loop2
4439
4440 ldr r0, [r1, #SP_RDR]
4441SP_loop3:
4442 ldr r0, [r1, #SP_SR]
4443 tst r0, #SP_RDRF
4444 beq SP_loop3
4445
4446 ldr r0, [r1, #SP_RDR]
4447 and r0, r0, #255
4448 bx lr
4449.endfunc
4450
4451.func NVRAM_Xfer, NVRAM_XFER
4452
4453
4454
4455
4456NVRAM_XFER:
4457 stmdb sp!, {r4, r5, lr}
4458 mov r5, r0
4459 mov r4, r3
4460 mov r0, r2, LSR #5
4461 and r0, r0, #8
4462 add r0, r0, #NVRAM_CMD_READ
4463 ldr r1, =NVRAM_SCRATCH
4464 strb r0, [r1, #0]
4465 strb r2, [r1, #1]
4466_local1:
4467 bl NVRAM_INIT
4468 tst r0, #NVRAM_SR_RDY
4469 bne _local1
4470 mov r0, #20
4471 bl DELAY9
4472 mov r2, r4
4473 mov r1, r5
4474 mov r0, #2
4475 bl NVRAM_XFER2
4476 ldmia sp!, {r4, r5, lr}
4477 bx lr
4478.endfunc
4479
4480.func NVRAM_Xfer2, NVRAM_XFER2
4481NVRAM_XFER2:
4482 stmdb sp!, {r4, r5, r6, lr}
4483 ldr r4, =SP_BASE
4484 mov r3, #0
4485 cmp r0, #0
4486 bls _local2
4487 ldr r5, =NVRAM_SCRATCH
4488_local4:
4489 ldrb r6, [r5, r3]
4490 str r6, [r4, #SP_TDR]
4491_local3:
4492 ldr r6, [r4, #SP_SR]
4493 tst r6, #SP_TDRE
4494 beq _local3
4495 add r3, r3, #1
4496 cmp r3, r0
4497 blo _local4
4498_local2:
4499 mov r3, #SPI_8CLOCKS
4500 str r3, [r4, #SP_TDR]
4501 ldr r0, [r4, #SP_RDR]
4502_local5:
4503 ldr r0, [r4, #SP_SR]
4504 tst r0, #SP_RDRF
4505 beq _local5
4506 ldr r0, [r4, #SP_RDR]
4507 mov r0, #0
4508 cmp r2, #0
4509 bls _local6
4510_local7:
4511 ldr r5, [r4, #SP_SR]
4512 tst r5, #SP_TDRE
4513 beq _local7
4514 str r3, [r4, #SP_TDR]
4515_local8:
4516 ldr r5, [r4, #SP_SR]
4517 tst r5, #SP_RDRF
4518 beq _local8
4519 ldr r5, [r4, #SP_RDR]
4520 strb r5, [r1], #1
4521 add r0, r0, #1
4522 cmp r0, r2
4523 blo _local7
4524_local6:
4525 mov r0, #200
4526 bl DELAY9
4527 ldmia sp!, {r4, r5, r6, lr}
4528 bx lr
4529#endif
4530
