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7670e62c LCC |
1 | /* |
2 | * Copyright (C) 2008, cozybit Inc. | |
3 | * Copyright (C) 2007, Red Hat, Inc. | |
4 | * Copyright (C) 2003-2006, Marvell International Ltd. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or (at | |
9 | * your option) any later version. | |
10 | */ | |
11 | #include <linux/spinlock.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/kthread.h> | |
14 | #include <net/mac80211.h> | |
15 | ||
edfcba15 JL |
16 | #include "deb_defs.h" |
17 | ||
7670e62c LCC |
18 | #ifndef DRV_NAME |
19 | #define DRV_NAME "libertas_tf" | |
20 | #endif | |
21 | ||
22 | #define MRVL_DEFAULT_RETRIES 9 | |
23 | #define MRVL_PER_PACKET_RATE 0x10 | |
24 | #define MRVL_MAX_BCN_SIZE 440 | |
25 | #define CMD_OPTION_WAITFORRSP 0x0002 | |
26 | ||
27 | /* Return command are almost always the same as the host command, but with | |
28 | * bit 15 set high. There are a few exceptions, though... | |
29 | */ | |
30 | #define CMD_RET(cmd) (0x8000 | cmd) | |
31 | ||
32 | /* Command codes */ | |
33 | #define CMD_GET_HW_SPEC 0x0003 | |
34 | #define CMD_802_11_RESET 0x0005 | |
35 | #define CMD_MAC_MULTICAST_ADR 0x0010 | |
36 | #define CMD_802_11_RADIO_CONTROL 0x001c | |
37 | #define CMD_802_11_RF_CHANNEL 0x001d | |
38 | #define CMD_802_11_RF_TX_POWER 0x001e | |
39 | #define CMD_MAC_CONTROL 0x0028 | |
40 | #define CMD_802_11_MAC_ADDRESS 0x004d | |
41 | #define CMD_SET_BOOT2_VER 0x00a5 | |
42 | #define CMD_802_11_BEACON_CTRL 0x00b0 | |
43 | #define CMD_802_11_BEACON_SET 0x00cb | |
44 | #define CMD_802_11_SET_MODE 0x00cc | |
45 | #define CMD_802_11_SET_BSSID 0x00cd | |
46 | ||
47 | #define CMD_ACT_GET 0x0000 | |
48 | #define CMD_ACT_SET 0x0001 | |
49 | ||
50 | /* Define action or option for CMD_802_11_RESET */ | |
51 | #define CMD_ACT_HALT 0x0003 | |
52 | ||
53 | /* Define action or option for CMD_MAC_CONTROL */ | |
54 | #define CMD_ACT_MAC_RX_ON 0x0001 | |
55 | #define CMD_ACT_MAC_TX_ON 0x0002 | |
56 | #define CMD_ACT_MAC_MULTICAST_ENABLE 0x0020 | |
57 | #define CMD_ACT_MAC_BROADCAST_ENABLE 0x0040 | |
58 | #define CMD_ACT_MAC_PROMISCUOUS_ENABLE 0x0080 | |
59 | #define CMD_ACT_MAC_ALL_MULTICAST_ENABLE 0x0100 | |
60 | ||
61 | /* Define action or option for CMD_802_11_RADIO_CONTROL */ | |
62 | #define CMD_TYPE_AUTO_PREAMBLE 0x0001 | |
63 | #define CMD_TYPE_SHORT_PREAMBLE 0x0002 | |
64 | #define CMD_TYPE_LONG_PREAMBLE 0x0003 | |
65 | ||
66 | #define TURN_ON_RF 0x01 | |
67 | #define RADIO_ON 0x01 | |
68 | #define RADIO_OFF 0x00 | |
69 | ||
70 | #define SET_AUTO_PREAMBLE 0x05 | |
71 | #define SET_SHORT_PREAMBLE 0x03 | |
72 | #define SET_LONG_PREAMBLE 0x01 | |
73 | ||
74 | /* Define action or option for CMD_802_11_RF_CHANNEL */ | |
75 | #define CMD_OPT_802_11_RF_CHANNEL_GET 0x00 | |
76 | #define CMD_OPT_802_11_RF_CHANNEL_SET 0x01 | |
77 | ||
78 | /* Codes for CMD_802_11_SET_MODE */ | |
79 | enum lbtf_mode { | |
80 | LBTF_PASSIVE_MODE, | |
81 | LBTF_STA_MODE, | |
82 | LBTF_AP_MODE, | |
83 | }; | |
84 | ||
85 | /** Card Event definition */ | |
86 | #define MACREG_INT_CODE_FIRMWARE_READY 48 | |
87 | /** Buffer Constants */ | |
88 | ||
89 | /* The size of SQ memory PPA, DPA are 8 DWORDs, that keep the physical | |
90 | * addresses of TxPD buffers. Station has only 8 TxPD available, Whereas | |
91 | * driver has more local TxPDs. Each TxPD on the host memory is associated | |
92 | * with a Tx control node. The driver maintains 8 RxPD descriptors for | |
93 | * station firmware to store Rx packet information. | |
94 | * | |
95 | * Current version of MAC has a 32x6 multicast address buffer. | |
96 | * | |
97 | * 802.11b can have up to 14 channels, the driver keeps the | |
98 | * BSSID(MAC address) of each APs or Ad hoc stations it has sensed. | |
99 | */ | |
100 | ||
101 | #define MRVDRV_MAX_MULTICAST_LIST_SIZE 32 | |
102 | #define LBS_NUM_CMD_BUFFERS 10 | |
103 | #define LBS_CMD_BUFFER_SIZE (2 * 1024) | |
104 | #define MRVDRV_MAX_CHANNEL_SIZE 14 | |
105 | #define MRVDRV_SNAP_HEADER_LEN 8 | |
106 | ||
107 | #define LBS_UPLD_SIZE 2312 | |
108 | #define DEV_NAME_LEN 32 | |
109 | ||
110 | /** Misc constants */ | |
111 | /* This section defines 802.11 specific contants */ | |
112 | ||
113 | #define MRVDRV_MAX_REGION_CODE 6 | |
114 | /** | |
115 | * the table to keep region code | |
116 | */ | |
117 | #define LBTF_REGDOMAIN_US 0x10 | |
118 | #define LBTF_REGDOMAIN_CA 0x20 | |
119 | #define LBTF_REGDOMAIN_EU 0x30 | |
120 | #define LBTF_REGDOMAIN_SP 0x31 | |
121 | #define LBTF_REGDOMAIN_FR 0x32 | |
122 | #define LBTF_REGDOMAIN_JP 0x40 | |
123 | ||
124 | #define SBI_EVENT_CAUSE_SHIFT 3 | |
125 | ||
126 | /** RxPD status */ | |
127 | ||
128 | #define MRVDRV_RXPD_STATUS_OK 0x0001 | |
129 | ||
130 | ||
131 | /* This is for firmware specific length */ | |
132 | #define EXTRA_LEN 36 | |
133 | ||
134 | #define MRVDRV_ETH_TX_PACKET_BUFFER_SIZE \ | |
135 | (ETH_FRAME_LEN + sizeof(struct txpd) + EXTRA_LEN) | |
136 | ||
137 | #define MRVDRV_ETH_RX_PACKET_BUFFER_SIZE \ | |
138 | (ETH_FRAME_LEN + sizeof(struct rxpd) \ | |
139 | + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN) | |
140 | ||
141 | #define CMD_F_HOSTCMD (1 << 0) | |
142 | #define FW_CAPINFO_WPA (1 << 0) | |
143 | ||
144 | #define RF_ANTENNA_1 0x1 | |
145 | #define RF_ANTENNA_2 0x2 | |
146 | #define RF_ANTENNA_AUTO 0xFFFF | |
147 | ||
148 | #define LBTF_EVENT_BCN_SENT 55 | |
149 | ||
150 | /** Global Variable Declaration */ | |
151 | /** mv_ms_type */ | |
152 | enum mv_ms_type { | |
153 | MVMS_DAT = 0, | |
154 | MVMS_CMD = 1, | |
155 | MVMS_TXDONE = 2, | |
156 | MVMS_EVENT | |
157 | }; | |
158 | ||
159 | extern struct workqueue_struct *lbtf_wq; | |
160 | ||
161 | struct lbtf_private; | |
162 | ||
163 | struct lbtf_offset_value { | |
164 | u32 offset; | |
165 | u32 value; | |
166 | }; | |
167 | ||
168 | struct channel_range { | |
169 | u8 regdomain; | |
170 | u8 start; | |
171 | u8 end; /* exclusive (channel must be less than end) */ | |
172 | }; | |
173 | ||
174 | struct if_usb_card; | |
175 | ||
176 | /** Private structure for the MV device */ | |
177 | struct lbtf_private { | |
178 | void *card; | |
179 | struct ieee80211_hw *hw; | |
180 | ||
181 | /* Command response buffer */ | |
182 | u8 cmd_resp_buff[LBS_UPLD_SIZE]; | |
183 | /* Download sent: | |
184 | bit0 1/0=data_sent/data_tx_done, | |
185 | bit1 1/0=cmd_sent/cmd_tx_done, | |
186 | all other bits reserved 0 */ | |
187 | struct ieee80211_vif *vif; | |
188 | ||
189 | struct work_struct cmd_work; | |
190 | struct work_struct tx_work; | |
191 | /** Hardware access */ | |
192 | int (*hw_host_to_card) (struct lbtf_private *priv, u8 type, u8 *payload, u16 nb); | |
193 | int (*hw_prog_firmware) (struct if_usb_card *cardp); | |
194 | int (*hw_reset_device) (struct if_usb_card *cardp); | |
195 | ||
196 | ||
197 | /** Wlan adapter data structure*/ | |
198 | /** STATUS variables */ | |
199 | u32 fwrelease; | |
200 | u32 fwcapinfo; | |
201 | /* protected with big lock */ | |
202 | ||
203 | struct mutex lock; | |
204 | ||
205 | /** command-related variables */ | |
206 | u16 seqnum; | |
207 | /* protected by big lock */ | |
208 | ||
209 | struct cmd_ctrl_node *cmd_array; | |
210 | /** Current command */ | |
211 | struct cmd_ctrl_node *cur_cmd; | |
212 | /** command Queues */ | |
213 | /** Free command buffers */ | |
214 | struct list_head cmdfreeq; | |
215 | /** Pending command buffers */ | |
216 | struct list_head cmdpendingq; | |
217 | ||
218 | /** spin locks */ | |
219 | spinlock_t driver_lock; | |
220 | ||
221 | /** Timers */ | |
222 | struct timer_list command_timer; | |
223 | int nr_retries; | |
224 | int cmd_timed_out; | |
225 | ||
226 | u8 cmd_response_rxed; | |
227 | ||
228 | /** capability Info used in Association, start, join */ | |
229 | u16 capability; | |
230 | ||
231 | /** MAC address information */ | |
232 | u8 current_addr[ETH_ALEN]; | |
233 | u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN]; | |
234 | u32 nr_of_multicastmacaddr; | |
235 | int cur_freq; | |
236 | ||
237 | struct sk_buff *skb_to_tx; | |
238 | struct sk_buff *tx_skb; | |
239 | ||
240 | /** NIC Operation characteristics */ | |
241 | u16 mac_control; | |
242 | u16 regioncode; | |
243 | struct channel_range range; | |
244 | ||
245 | u8 radioon; | |
246 | u32 preamble; | |
247 | ||
248 | struct ieee80211_channel channels[14]; | |
249 | struct ieee80211_rate rates[12]; | |
250 | struct ieee80211_supported_band band; | |
251 | struct lbtf_offset_value offsetvalue; | |
252 | ||
253 | u8 fw_ready; | |
254 | u8 surpriseremoved; | |
255 | struct sk_buff_head bc_ps_buf; | |
bef9cb58 JL |
256 | |
257 | /* Most recently reported noise in dBm */ | |
258 | s8 noise; | |
7670e62c LCC |
259 | }; |
260 | ||
261 | /* 802.11-related definitions */ | |
262 | ||
263 | /* TxPD descriptor */ | |
264 | struct txpd { | |
265 | /* Current Tx packet status */ | |
266 | __le32 tx_status; | |
267 | /* Tx control */ | |
268 | __le32 tx_control; | |
269 | __le32 tx_packet_location; | |
270 | /* Tx packet length */ | |
271 | __le16 tx_packet_length; | |
272 | /* First 2 byte of destination MAC address */ | |
273 | u8 tx_dest_addr_high[2]; | |
274 | /* Last 4 byte of destination MAC address */ | |
275 | u8 tx_dest_addr_low[4]; | |
276 | /* Pkt Priority */ | |
277 | u8 priority; | |
278 | /* Pkt Trasnit Power control */ | |
279 | u8 powermgmt; | |
280 | /* Time the packet has been queued in the driver (units = 2ms) */ | |
281 | u8 pktdelay_2ms; | |
282 | /* reserved */ | |
283 | u8 reserved1; | |
284 | }; | |
285 | ||
286 | /* RxPD Descriptor */ | |
287 | struct rxpd { | |
288 | /* Current Rx packet status */ | |
289 | __le16 status; | |
290 | ||
291 | /* SNR */ | |
292 | u8 snr; | |
293 | ||
294 | /* Tx control */ | |
295 | u8 rx_control; | |
296 | ||
297 | /* Pkt length */ | |
298 | __le16 pkt_len; | |
299 | ||
300 | /* Noise Floor */ | |
301 | u8 nf; | |
302 | ||
303 | /* Rx Packet Rate */ | |
304 | u8 rx_rate; | |
305 | ||
306 | /* Pkt addr */ | |
307 | __le32 pkt_ptr; | |
308 | ||
309 | /* Next Rx RxPD addr */ | |
310 | __le32 next_rxpd_ptr; | |
311 | ||
312 | /* Pkt Priority */ | |
313 | u8 priority; | |
314 | u8 reserved[3]; | |
315 | }; | |
316 | ||
317 | struct cmd_header { | |
318 | __le16 command; | |
319 | __le16 size; | |
320 | __le16 seqnum; | |
321 | __le16 result; | |
ba2d3587 | 322 | } __packed; |
7670e62c LCC |
323 | |
324 | struct cmd_ctrl_node { | |
325 | struct list_head list; | |
326 | int result; | |
327 | /* command response */ | |
328 | int (*callback)(struct lbtf_private *, | |
329 | unsigned long, struct cmd_header *); | |
330 | unsigned long callback_arg; | |
331 | /* command data */ | |
332 | struct cmd_header *cmdbuf; | |
333 | /* wait queue */ | |
334 | u16 cmdwaitqwoken; | |
335 | wait_queue_head_t cmdwait_q; | |
336 | }; | |
337 | ||
338 | /* | |
339 | * Define data structure for CMD_GET_HW_SPEC | |
340 | * This structure defines the response for the GET_HW_SPEC command | |
341 | */ | |
342 | struct cmd_ds_get_hw_spec { | |
343 | struct cmd_header hdr; | |
344 | ||
345 | /* HW Interface version number */ | |
346 | __le16 hwifversion; | |
347 | /* HW version number */ | |
348 | __le16 version; | |
349 | /* Max number of TxPD FW can handle */ | |
350 | __le16 nr_txpd; | |
351 | /* Max no of Multicast address */ | |
352 | __le16 nr_mcast_adr; | |
353 | /* MAC address */ | |
354 | u8 permanentaddr[6]; | |
355 | ||
356 | /* region Code */ | |
357 | __le16 regioncode; | |
358 | ||
359 | /* Number of antenna used */ | |
360 | __le16 nr_antenna; | |
361 | ||
362 | /* FW release number, example 0x01030304 = 2.3.4p1 */ | |
363 | __le32 fwrelease; | |
364 | ||
365 | /* Base Address of TxPD queue */ | |
366 | __le32 wcb_base; | |
367 | /* Read Pointer of RxPd queue */ | |
368 | __le32 rxpd_rdptr; | |
369 | ||
370 | /* Write Pointer of RxPd queue */ | |
371 | __le32 rxpd_wrptr; | |
372 | ||
373 | /*FW/HW capability */ | |
374 | __le32 fwcapinfo; | |
ba2d3587 | 375 | } __packed; |
7670e62c LCC |
376 | |
377 | struct cmd_ds_mac_control { | |
378 | struct cmd_header hdr; | |
379 | __le16 action; | |
380 | u16 reserved; | |
381 | }; | |
382 | ||
383 | struct cmd_ds_802_11_mac_address { | |
384 | struct cmd_header hdr; | |
385 | ||
386 | __le16 action; | |
387 | uint8_t macadd[ETH_ALEN]; | |
388 | }; | |
389 | ||
390 | struct cmd_ds_mac_multicast_addr { | |
391 | struct cmd_header hdr; | |
392 | ||
393 | __le16 action; | |
394 | __le16 nr_of_adrs; | |
395 | u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE]; | |
396 | }; | |
397 | ||
398 | struct cmd_ds_set_mode { | |
399 | struct cmd_header hdr; | |
400 | ||
401 | __le16 mode; | |
402 | }; | |
403 | ||
404 | struct cmd_ds_set_bssid { | |
405 | struct cmd_header hdr; | |
406 | ||
407 | u8 bssid[6]; | |
408 | u8 activate; | |
409 | }; | |
410 | ||
411 | struct cmd_ds_802_11_radio_control { | |
412 | struct cmd_header hdr; | |
413 | ||
414 | __le16 action; | |
415 | __le16 control; | |
416 | }; | |
417 | ||
418 | ||
419 | struct cmd_ds_802_11_rf_channel { | |
420 | struct cmd_header hdr; | |
421 | ||
422 | __le16 action; | |
423 | __le16 channel; | |
424 | __le16 rftype; /* unused */ | |
425 | __le16 reserved; /* unused */ | |
426 | u8 channellist[32]; /* unused */ | |
427 | }; | |
428 | ||
429 | struct cmd_ds_set_boot2_ver { | |
430 | struct cmd_header hdr; | |
431 | ||
432 | __le16 action; | |
433 | __le16 version; | |
434 | }; | |
435 | ||
436 | struct cmd_ds_802_11_reset { | |
437 | struct cmd_header hdr; | |
438 | ||
439 | __le16 action; | |
440 | }; | |
441 | ||
442 | struct cmd_ds_802_11_beacon_control { | |
443 | struct cmd_header hdr; | |
444 | ||
445 | __le16 action; | |
446 | __le16 beacon_enable; | |
447 | __le16 beacon_period; | |
448 | }; | |
449 | ||
450 | struct cmd_ds_802_11_beacon_set { | |
451 | struct cmd_header hdr; | |
452 | ||
453 | __le16 len; | |
454 | u8 beacon[MRVL_MAX_BCN_SIZE]; | |
455 | }; | |
456 | ||
457 | struct lbtf_private; | |
458 | struct cmd_ctrl_node; | |
459 | ||
460 | /** Function Prototype Declaration */ | |
461 | void lbtf_set_mac_control(struct lbtf_private *priv); | |
462 | ||
463 | int lbtf_free_cmd_buffer(struct lbtf_private *priv); | |
464 | ||
465 | int lbtf_allocate_cmd_buffer(struct lbtf_private *priv); | |
466 | int lbtf_execute_next_command(struct lbtf_private *priv); | |
467 | int lbtf_set_radio_control(struct lbtf_private *priv); | |
468 | int lbtf_update_hw_spec(struct lbtf_private *priv); | |
469 | int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv); | |
470 | void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode); | |
5f936f11 | 471 | void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid); |
7670e62c LCC |
472 | int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr); |
473 | ||
474 | int lbtf_set_channel(struct lbtf_private *priv, u8 channel); | |
475 | ||
476 | int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon); | |
477 | int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable, | |
478 | int beacon_int); | |
479 | ||
480 | ||
481 | int lbtf_process_rx_command(struct lbtf_private *priv); | |
482 | void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd, | |
483 | int result); | |
484 | void lbtf_cmd_response_rx(struct lbtf_private *priv); | |
485 | ||
486 | /* main.c */ | |
487 | struct chan_freq_power *lbtf_get_region_cfp_table(u8 region, | |
488 | int *cfp_no); | |
489 | struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev); | |
490 | int lbtf_remove_card(struct lbtf_private *priv); | |
491 | int lbtf_start_card(struct lbtf_private *priv); | |
492 | int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb); | |
493 | void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail); | |
494 | void lbtf_bcn_sent(struct lbtf_private *priv); | |
495 | ||
496 | /* support functions for cmd.c */ | |
497 | /* lbtf_cmd() infers the size of the buffer to copy data back into, from | |
498 | the size of the target of the pointer. Since the command to be sent | |
499 | may often be smaller, that size is set in cmd->size by the caller.*/ | |
500 | #define lbtf_cmd(priv, cmdnr, cmd, cb, cb_arg) ({ \ | |
501 | uint16_t __sz = le16_to_cpu((cmd)->hdr.size); \ | |
502 | (cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd))); \ | |
503 | __lbtf_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg); \ | |
504 | }) | |
505 | ||
506 | #define lbtf_cmd_with_response(priv, cmdnr, cmd) \ | |
507 | lbtf_cmd(priv, cmdnr, cmd, lbtf_cmd_copyback, (unsigned long) (cmd)) | |
508 | ||
509 | void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command, | |
510 | struct cmd_header *in_cmd, int in_cmd_size); | |
511 | ||
512 | int __lbtf_cmd(struct lbtf_private *priv, uint16_t command, | |
513 | struct cmd_header *in_cmd, int in_cmd_size, | |
514 | int (*callback)(struct lbtf_private *, unsigned long, | |
515 | struct cmd_header *), | |
516 | unsigned long callback_arg); | |
517 | ||
518 | int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra, | |
519 | struct cmd_header *resp); |