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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
eb7ae89c | 3 | * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
21 | * Contact Information: | |
22 | * James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | *****************************************************************************/ | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/version.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/dma-mapping.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/skbuff.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/wireless.h> | |
37 | #include <linux/firmware.h> | |
b481de9c | 38 | #include <linux/etherdevice.h> |
12342c47 ZY |
39 | #include <asm/unaligned.h> |
40 | #include <net/mac80211.h> | |
b481de9c | 41 | |
82b9a121 | 42 | #include "iwl-3945-core.h" |
b481de9c | 43 | #include "iwl-3945.h" |
5d08cd1d | 44 | #include "iwl-helpers.h" |
b481de9c ZY |
45 | #include "iwl-3945-rs.h" |
46 | ||
47 | #define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \ | |
48 | [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ | |
49 | IWL_RATE_##r##M_IEEE, \ | |
50 | IWL_RATE_##ip##M_INDEX, \ | |
51 | IWL_RATE_##in##M_INDEX, \ | |
52 | IWL_RATE_##rp##M_INDEX, \ | |
53 | IWL_RATE_##rn##M_INDEX, \ | |
54 | IWL_RATE_##pp##M_INDEX, \ | |
14577f23 MA |
55 | IWL_RATE_##np##M_INDEX, \ |
56 | IWL_RATE_##r##M_INDEX_TABLE, \ | |
57 | IWL_RATE_##ip##M_INDEX_TABLE } | |
b481de9c ZY |
58 | |
59 | /* | |
60 | * Parameter order: | |
61 | * rate, prev rate, next rate, prev tgg rate, next tgg rate | |
62 | * | |
63 | * If there isn't a valid next or previous rate then INV is used which | |
64 | * maps to IWL_RATE_INVALID | |
65 | * | |
66 | */ | |
bb8c093b | 67 | const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT] = { |
14577f23 MA |
68 | IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
69 | IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ | |
70 | IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ | |
71 | IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ | |
b481de9c ZY |
72 | IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */ |
73 | IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */ | |
74 | IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */ | |
75 | IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */ | |
76 | IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */ | |
77 | IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */ | |
78 | IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */ | |
79 | IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */ | |
b481de9c ZY |
80 | }; |
81 | ||
bb8c093b | 82 | /* 1 = enable the iwl3945_disable_events() function */ |
b481de9c ZY |
83 | #define IWL_EVT_DISABLE (0) |
84 | #define IWL_EVT_DISABLE_SIZE (1532/32) | |
85 | ||
86 | /** | |
bb8c093b | 87 | * iwl3945_disable_events - Disable selected events in uCode event log |
b481de9c ZY |
88 | * |
89 | * Disable an event by writing "1"s into "disable" | |
90 | * bitmap in SRAM. Bit position corresponds to Event # (id/type). | |
91 | * Default values of 0 enable uCode events to be logged. | |
92 | * Use for only special debugging. This function is just a placeholder as-is, | |
93 | * you'll need to provide the special bits! ... | |
94 | * ... and set IWL_EVT_DISABLE to 1. */ | |
bb8c093b | 95 | void iwl3945_disable_events(struct iwl3945_priv *priv) |
b481de9c | 96 | { |
af7cca2a | 97 | int ret; |
b481de9c ZY |
98 | int i; |
99 | u32 base; /* SRAM address of event log header */ | |
100 | u32 disable_ptr; /* SRAM address of event-disable bitmap array */ | |
101 | u32 array_size; /* # of u32 entries in array */ | |
102 | u32 evt_disable[IWL_EVT_DISABLE_SIZE] = { | |
103 | 0x00000000, /* 31 - 0 Event id numbers */ | |
104 | 0x00000000, /* 63 - 32 */ | |
105 | 0x00000000, /* 95 - 64 */ | |
106 | 0x00000000, /* 127 - 96 */ | |
107 | 0x00000000, /* 159 - 128 */ | |
108 | 0x00000000, /* 191 - 160 */ | |
109 | 0x00000000, /* 223 - 192 */ | |
110 | 0x00000000, /* 255 - 224 */ | |
111 | 0x00000000, /* 287 - 256 */ | |
112 | 0x00000000, /* 319 - 288 */ | |
113 | 0x00000000, /* 351 - 320 */ | |
114 | 0x00000000, /* 383 - 352 */ | |
115 | 0x00000000, /* 415 - 384 */ | |
116 | 0x00000000, /* 447 - 416 */ | |
117 | 0x00000000, /* 479 - 448 */ | |
118 | 0x00000000, /* 511 - 480 */ | |
119 | 0x00000000, /* 543 - 512 */ | |
120 | 0x00000000, /* 575 - 544 */ | |
121 | 0x00000000, /* 607 - 576 */ | |
122 | 0x00000000, /* 639 - 608 */ | |
123 | 0x00000000, /* 671 - 640 */ | |
124 | 0x00000000, /* 703 - 672 */ | |
125 | 0x00000000, /* 735 - 704 */ | |
126 | 0x00000000, /* 767 - 736 */ | |
127 | 0x00000000, /* 799 - 768 */ | |
128 | 0x00000000, /* 831 - 800 */ | |
129 | 0x00000000, /* 863 - 832 */ | |
130 | 0x00000000, /* 895 - 864 */ | |
131 | 0x00000000, /* 927 - 896 */ | |
132 | 0x00000000, /* 959 - 928 */ | |
133 | 0x00000000, /* 991 - 960 */ | |
134 | 0x00000000, /* 1023 - 992 */ | |
135 | 0x00000000, /* 1055 - 1024 */ | |
136 | 0x00000000, /* 1087 - 1056 */ | |
137 | 0x00000000, /* 1119 - 1088 */ | |
138 | 0x00000000, /* 1151 - 1120 */ | |
139 | 0x00000000, /* 1183 - 1152 */ | |
140 | 0x00000000, /* 1215 - 1184 */ | |
141 | 0x00000000, /* 1247 - 1216 */ | |
142 | 0x00000000, /* 1279 - 1248 */ | |
143 | 0x00000000, /* 1311 - 1280 */ | |
144 | 0x00000000, /* 1343 - 1312 */ | |
145 | 0x00000000, /* 1375 - 1344 */ | |
146 | 0x00000000, /* 1407 - 1376 */ | |
147 | 0x00000000, /* 1439 - 1408 */ | |
148 | 0x00000000, /* 1471 - 1440 */ | |
149 | 0x00000000, /* 1503 - 1472 */ | |
150 | }; | |
151 | ||
152 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 153 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
b481de9c ZY |
154 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); |
155 | return; | |
156 | } | |
157 | ||
bb8c093b | 158 | ret = iwl3945_grab_nic_access(priv); |
af7cca2a | 159 | if (ret) { |
b481de9c ZY |
160 | IWL_WARNING("Can not read from adapter at this time.\n"); |
161 | return; | |
162 | } | |
163 | ||
bb8c093b CH |
164 | disable_ptr = iwl3945_read_targ_mem(priv, base + (4 * sizeof(u32))); |
165 | array_size = iwl3945_read_targ_mem(priv, base + (5 * sizeof(u32))); | |
166 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
167 | |
168 | if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) { | |
169 | IWL_DEBUG_INFO("Disabling selected uCode log events at 0x%x\n", | |
170 | disable_ptr); | |
bb8c093b | 171 | ret = iwl3945_grab_nic_access(priv); |
b481de9c | 172 | for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++) |
bb8c093b | 173 | iwl3945_write_targ_mem(priv, |
af7cca2a TW |
174 | disable_ptr + (i * sizeof(u32)), |
175 | evt_disable[i]); | |
b481de9c | 176 | |
bb8c093b | 177 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
178 | } else { |
179 | IWL_DEBUG_INFO("Selected uCode log events may be disabled\n"); | |
180 | IWL_DEBUG_INFO(" by writing \"1\"s into disable bitmap\n"); | |
181 | IWL_DEBUG_INFO(" in SRAM at 0x%x, size %d u32s\n", | |
182 | disable_ptr, array_size); | |
183 | } | |
184 | ||
185 | } | |
186 | ||
17744ff6 TW |
187 | static int iwl3945_hwrate_to_plcp_idx(u8 plcp) |
188 | { | |
189 | int idx; | |
190 | ||
191 | for (idx = 0; idx < IWL_RATE_COUNT; idx++) | |
192 | if (iwl3945_rates[idx].plcp == plcp) | |
193 | return idx; | |
194 | return -1; | |
195 | } | |
196 | ||
b481de9c ZY |
197 | /** |
198 | * iwl3945_get_antenna_flags - Get antenna flags for RXON command | |
199 | * @priv: eeprom and antenna fields are used to determine antenna flags | |
200 | * | |
201 | * priv->eeprom is used to determine if antenna AUX/MAIN are reversed | |
202 | * priv->antenna specifies the antenna diversity mode: | |
203 | * | |
204 | * IWL_ANTENNA_DIVERISTY - NIC selects best antenna by itself | |
205 | * IWL_ANTENNA_MAIN - Force MAIN antenna | |
206 | * IWL_ANTENNA_AUX - Force AUX antenna | |
207 | */ | |
bb8c093b | 208 | __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv) |
b481de9c ZY |
209 | { |
210 | switch (priv->antenna) { | |
211 | case IWL_ANTENNA_DIVERSITY: | |
212 | return 0; | |
213 | ||
214 | case IWL_ANTENNA_MAIN: | |
215 | if (priv->eeprom.antenna_switch_type) | |
216 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
217 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
218 | ||
219 | case IWL_ANTENNA_AUX: | |
220 | if (priv->eeprom.antenna_switch_type) | |
221 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
222 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
223 | } | |
224 | ||
225 | /* bad antenna selector value */ | |
226 | IWL_ERROR("Bad antenna selector value (0x%x)\n", priv->antenna); | |
227 | return 0; /* "diversity" is default if error */ | |
228 | } | |
229 | ||
91c066f2 TW |
230 | #ifdef CONFIG_IWL3945_DEBUG |
231 | #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x | |
232 | ||
233 | static const char *iwl3945_get_tx_fail_reason(u32 status) | |
234 | { | |
235 | switch (status & TX_STATUS_MSK) { | |
236 | case TX_STATUS_SUCCESS: | |
237 | return "SUCCESS"; | |
238 | TX_STATUS_ENTRY(SHORT_LIMIT); | |
239 | TX_STATUS_ENTRY(LONG_LIMIT); | |
240 | TX_STATUS_ENTRY(FIFO_UNDERRUN); | |
241 | TX_STATUS_ENTRY(MGMNT_ABORT); | |
242 | TX_STATUS_ENTRY(NEXT_FRAG); | |
243 | TX_STATUS_ENTRY(LIFE_EXPIRE); | |
244 | TX_STATUS_ENTRY(DEST_PS); | |
245 | TX_STATUS_ENTRY(ABORTED); | |
246 | TX_STATUS_ENTRY(BT_RETRY); | |
247 | TX_STATUS_ENTRY(STA_INVALID); | |
248 | TX_STATUS_ENTRY(FRAG_DROPPED); | |
249 | TX_STATUS_ENTRY(TID_DISABLE); | |
250 | TX_STATUS_ENTRY(FRAME_FLUSHED); | |
251 | TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); | |
252 | TX_STATUS_ENTRY(TX_LOCKED); | |
253 | TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); | |
254 | } | |
255 | ||
256 | return "UNKNOWN"; | |
257 | } | |
258 | #else | |
259 | static inline const char *iwl3945_get_tx_fail_reason(u32 status) | |
260 | { | |
261 | return ""; | |
262 | } | |
263 | #endif | |
264 | ||
265 | ||
266 | /** | |
267 | * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd | |
268 | * | |
269 | * When FW advances 'R' index, all entries between old and new 'R' index | |
270 | * need to be reclaimed. As result, some free space forms. If there is | |
271 | * enough free space (> low mark), wake the stack that feeds us. | |
272 | */ | |
273 | static void iwl3945_tx_queue_reclaim(struct iwl3945_priv *priv, | |
274 | int txq_id, int index) | |
275 | { | |
276 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
277 | struct iwl3945_queue *q = &txq->q; | |
278 | struct iwl3945_tx_info *tx_info; | |
279 | ||
280 | BUG_ON(txq_id == IWL_CMD_QUEUE_NUM); | |
281 | ||
282 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
283 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
284 | ||
285 | tx_info = &txq->txb[txq->q.read_ptr]; | |
deedf504 RC |
286 | ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb[0], |
287 | &tx_info->status); | |
91c066f2 TW |
288 | tx_info->skb[0] = NULL; |
289 | iwl3945_hw_txq_free_tfd(priv, txq); | |
290 | } | |
291 | ||
292 | if (iwl3945_queue_space(q) > q->low_mark && (txq_id >= 0) && | |
293 | (txq_id != IWL_CMD_QUEUE_NUM) && | |
294 | priv->mac80211_registered) | |
295 | ieee80211_wake_queue(priv->hw, txq_id); | |
296 | } | |
297 | ||
298 | /** | |
299 | * iwl3945_rx_reply_tx - Handle Tx response | |
300 | */ | |
301 | static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv, | |
302 | struct iwl3945_rx_mem_buffer *rxb) | |
303 | { | |
304 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; | |
305 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); | |
306 | int txq_id = SEQ_TO_QUEUE(sequence); | |
307 | int index = SEQ_TO_INDEX(sequence); | |
308 | struct iwl3945_tx_queue *txq = &priv->txq[txq_id]; | |
309 | struct ieee80211_tx_status *tx_status; | |
310 | struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; | |
311 | u32 status = le32_to_cpu(tx_resp->status); | |
312 | int rate_idx; | |
313 | ||
314 | if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) { | |
315 | IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " | |
316 | "is out of range [0-%d] %d %d\n", txq_id, | |
317 | index, txq->q.n_bd, txq->q.write_ptr, | |
318 | txq->q.read_ptr); | |
319 | return; | |
320 | } | |
321 | ||
322 | tx_status = &(txq->txb[txq->q.read_ptr].status); | |
323 | ||
324 | tx_status->retry_count = tx_resp->failure_frame; | |
325 | /* tx_status->rts_retry_count = tx_resp->failure_rts; */ | |
326 | tx_status->flags = ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? | |
327 | IEEE80211_TX_STATUS_ACK : 0; | |
328 | ||
329 | IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", | |
330 | txq_id, iwl3945_get_tx_fail_reason(status), status, | |
331 | tx_resp->rate, tx_resp->failure_frame); | |
332 | ||
333 | rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate); | |
2e92e6f2 JB |
334 | if (tx_status->control.band == IEEE80211_BAND_5GHZ) |
335 | rate_idx -= IWL_FIRST_OFDM_RATE; | |
336 | tx_status->control.tx_rate_idx = rate_idx; | |
91c066f2 TW |
337 | IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); |
338 | iwl3945_tx_queue_reclaim(priv, txq_id, index); | |
339 | ||
340 | if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) | |
341 | IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); | |
342 | } | |
343 | ||
344 | ||
345 | ||
b481de9c ZY |
346 | /***************************************************************************** |
347 | * | |
348 | * Intel PRO/Wireless 3945ABG/BG Network Connection | |
349 | * | |
350 | * RX handler implementations | |
351 | * | |
b481de9c ZY |
352 | *****************************************************************************/ |
353 | ||
bb8c093b | 354 | void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb) |
b481de9c | 355 | { |
bb8c093b | 356 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c | 357 | IWL_DEBUG_RX("Statistics notification received (%d vs %d).\n", |
bb8c093b | 358 | (int)sizeof(struct iwl3945_notif_statistics), |
b481de9c ZY |
359 | le32_to_cpu(pkt->len)); |
360 | ||
361 | memcpy(&priv->statistics, pkt->u.raw, sizeof(priv->statistics)); | |
362 | ||
ab53d8af MA |
363 | iwl3945_led_background(priv); |
364 | ||
b481de9c ZY |
365 | priv->last_statistics_time = jiffies; |
366 | } | |
367 | ||
17744ff6 TW |
368 | /****************************************************************************** |
369 | * | |
370 | * Misc. internal state and helper functions | |
371 | * | |
372 | ******************************************************************************/ | |
373 | #ifdef CONFIG_IWL3945_DEBUG | |
374 | ||
375 | /** | |
376 | * iwl3945_report_frame - dump frame to syslog during debug sessions | |
377 | * | |
378 | * You may hack this function to show different aspects of received frames, | |
379 | * including selective frame dumps. | |
380 | * group100 parameter selects whether to show 1 out of 100 good frames. | |
381 | */ | |
382 | static void iwl3945_dbg_report_frame(struct iwl3945_priv *priv, | |
383 | struct iwl3945_rx_packet *pkt, | |
384 | struct ieee80211_hdr *header, int group100) | |
385 | { | |
386 | u32 to_us; | |
387 | u32 print_summary = 0; | |
388 | u32 print_dump = 0; /* set to 1 to dump all frames' contents */ | |
389 | u32 hundred = 0; | |
390 | u32 dataframe = 0; | |
391 | u16 fc; | |
392 | u16 seq_ctl; | |
393 | u16 channel; | |
394 | u16 phy_flags; | |
395 | u16 length; | |
396 | u16 status; | |
397 | u16 bcn_tmr; | |
398 | u32 tsf_low; | |
399 | u64 tsf; | |
400 | u8 rssi; | |
401 | u8 agc; | |
402 | u16 sig_avg; | |
403 | u16 noise_diff; | |
404 | struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); | |
405 | struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); | |
406 | struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); | |
407 | u8 *data = IWL_RX_DATA(pkt); | |
408 | ||
409 | /* MAC header */ | |
410 | fc = le16_to_cpu(header->frame_control); | |
411 | seq_ctl = le16_to_cpu(header->seq_ctrl); | |
412 | ||
413 | /* metadata */ | |
414 | channel = le16_to_cpu(rx_hdr->channel); | |
415 | phy_flags = le16_to_cpu(rx_hdr->phy_flags); | |
416 | length = le16_to_cpu(rx_hdr->len); | |
417 | ||
418 | /* end-of-frame status and timestamp */ | |
419 | status = le32_to_cpu(rx_end->status); | |
420 | bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp); | |
421 | tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff; | |
422 | tsf = le64_to_cpu(rx_end->timestamp); | |
423 | ||
424 | /* signal statistics */ | |
425 | rssi = rx_stats->rssi; | |
426 | agc = rx_stats->agc; | |
427 | sig_avg = le16_to_cpu(rx_stats->sig_avg); | |
428 | noise_diff = le16_to_cpu(rx_stats->noise_diff); | |
429 | ||
430 | to_us = !compare_ether_addr(header->addr1, priv->mac_addr); | |
431 | ||
432 | /* if data frame is to us and all is good, | |
433 | * (optionally) print summary for only 1 out of every 100 */ | |
434 | if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) == | |
435 | (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) { | |
436 | dataframe = 1; | |
437 | if (!group100) | |
438 | print_summary = 1; /* print each frame */ | |
439 | else if (priv->framecnt_to_us < 100) { | |
440 | priv->framecnt_to_us++; | |
441 | print_summary = 0; | |
442 | } else { | |
443 | priv->framecnt_to_us = 0; | |
444 | print_summary = 1; | |
445 | hundred = 1; | |
446 | } | |
447 | } else { | |
448 | /* print summary for all other frames */ | |
449 | print_summary = 1; | |
450 | } | |
451 | ||
452 | if (print_summary) { | |
453 | char *title; | |
454 | u32 rate; | |
455 | ||
456 | if (hundred) | |
457 | title = "100Frames"; | |
458 | else if (fc & IEEE80211_FCTL_RETRY) | |
459 | title = "Retry"; | |
460 | else if (ieee80211_is_assoc_response(fc)) | |
461 | title = "AscRsp"; | |
462 | else if (ieee80211_is_reassoc_response(fc)) | |
463 | title = "RasRsp"; | |
464 | else if (ieee80211_is_probe_response(fc)) { | |
465 | title = "PrbRsp"; | |
466 | print_dump = 1; /* dump frame contents */ | |
467 | } else if (ieee80211_is_beacon(fc)) { | |
468 | title = "Beacon"; | |
469 | print_dump = 1; /* dump frame contents */ | |
470 | } else if (ieee80211_is_atim(fc)) | |
471 | title = "ATIM"; | |
472 | else if (ieee80211_is_auth(fc)) | |
473 | title = "Auth"; | |
474 | else if (ieee80211_is_deauth(fc)) | |
475 | title = "DeAuth"; | |
476 | else if (ieee80211_is_disassoc(fc)) | |
477 | title = "DisAssoc"; | |
478 | else | |
479 | title = "Frame"; | |
480 | ||
481 | rate = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate); | |
482 | if (rate == -1) | |
483 | rate = 0; | |
484 | else | |
485 | rate = iwl3945_rates[rate].ieee / 2; | |
486 | ||
487 | /* print frame summary. | |
488 | * MAC addresses show just the last byte (for brevity), | |
489 | * but you can hack it to show more, if you'd like to. */ | |
490 | if (dataframe) | |
491 | IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, " | |
492 | "len=%u, rssi=%d, chnl=%d, rate=%u, \n", | |
493 | title, fc, header->addr1[5], | |
494 | length, rssi, channel, rate); | |
495 | else { | |
496 | /* src/dst addresses assume managed mode */ | |
497 | IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, " | |
498 | "src=0x%02x, rssi=%u, tim=%lu usec, " | |
499 | "phy=0x%02x, chnl=%d\n", | |
500 | title, fc, header->addr1[5], | |
501 | header->addr3[5], rssi, | |
502 | tsf_low - priv->scan_start_tsf, | |
503 | phy_flags, channel); | |
504 | } | |
505 | } | |
506 | if (print_dump) | |
507 | iwl3945_print_hex_dump(IWL_DL_RX, data, length); | |
508 | } | |
509 | #else | |
510 | static inline void iwl3945_dbg_report_frame(struct iwl3945_priv *priv, | |
511 | struct iwl3945_rx_packet *pkt, | |
512 | struct ieee80211_hdr *header, int group100) | |
513 | { | |
514 | } | |
515 | #endif | |
516 | ||
517 | ||
bd8a040e RR |
518 | static void iwl3945_add_radiotap(struct iwl3945_priv *priv, |
519 | struct sk_buff *skb, | |
520 | struct iwl3945_rx_frame_hdr *rx_hdr, | |
521 | struct ieee80211_rx_status *stats) | |
12342c47 ZY |
522 | { |
523 | /* First cache any information we need before we overwrite | |
524 | * the information provided in the skb from the hardware */ | |
566bfe5a | 525 | s8 signal = stats->signal; |
12342c47 | 526 | s8 noise = 0; |
8318d78a | 527 | int rate = stats->rate_idx; |
12342c47 | 528 | u64 tsf = stats->mactime; |
a0b484fe | 529 | __le16 phy_flags_hw = rx_hdr->phy_flags, antenna; |
12342c47 ZY |
530 | |
531 | struct iwl3945_rt_rx_hdr { | |
532 | struct ieee80211_radiotap_header rt_hdr; | |
533 | __le64 rt_tsf; /* TSF */ | |
534 | u8 rt_flags; /* radiotap packet flags */ | |
535 | u8 rt_rate; /* rate in 500kb/s */ | |
536 | __le16 rt_channelMHz; /* channel in MHz */ | |
537 | __le16 rt_chbitmask; /* channel bitfield */ | |
538 | s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ | |
539 | s8 rt_dbmnoise; | |
540 | u8 rt_antenna; /* antenna number */ | |
541 | } __attribute__ ((packed)) *iwl3945_rt; | |
542 | ||
543 | if (skb_headroom(skb) < sizeof(*iwl3945_rt)) { | |
544 | if (net_ratelimit()) | |
545 | printk(KERN_ERR "not enough headroom [%d] for " | |
d2594d07 | 546 | "radiotap head [%zd]\n", |
12342c47 ZY |
547 | skb_headroom(skb), sizeof(*iwl3945_rt)); |
548 | return; | |
549 | } | |
550 | ||
551 | /* put radiotap header in front of 802.11 header and data */ | |
552 | iwl3945_rt = (void *)skb_push(skb, sizeof(*iwl3945_rt)); | |
553 | ||
554 | /* initialise radiotap header */ | |
555 | iwl3945_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; | |
556 | iwl3945_rt->rt_hdr.it_pad = 0; | |
557 | ||
558 | /* total header + data */ | |
533dd1b0 | 559 | put_unaligned_le16(sizeof(*iwl3945_rt), &iwl3945_rt->rt_hdr.it_len); |
12342c47 ZY |
560 | |
561 | /* Indicate all the fields we add to the radiotap header */ | |
533dd1b0 HH |
562 | put_unaligned_le32((1 << IEEE80211_RADIOTAP_TSFT) | |
563 | (1 << IEEE80211_RADIOTAP_FLAGS) | | |
564 | (1 << IEEE80211_RADIOTAP_RATE) | | |
565 | (1 << IEEE80211_RADIOTAP_CHANNEL) | | |
566 | (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | | |
567 | (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | | |
568 | (1 << IEEE80211_RADIOTAP_ANTENNA), | |
569 | &iwl3945_rt->rt_hdr.it_present); | |
12342c47 ZY |
570 | |
571 | /* Zero the flags, we'll add to them as we go */ | |
572 | iwl3945_rt->rt_flags = 0; | |
573 | ||
533dd1b0 | 574 | put_unaligned_le64(tsf, &iwl3945_rt->rt_tsf); |
12342c47 ZY |
575 | |
576 | iwl3945_rt->rt_dbmsignal = signal; | |
577 | iwl3945_rt->rt_dbmnoise = noise; | |
578 | ||
579 | /* Convert the channel frequency and set the flags */ | |
533dd1b0 | 580 | put_unaligned_le16(stats->freq, &iwl3945_rt->rt_channelMHz); |
12342c47 | 581 | if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) |
533dd1b0 | 582 | put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ, |
12342c47 ZY |
583 | &iwl3945_rt->rt_chbitmask); |
584 | else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) | |
533dd1b0 | 585 | put_unaligned_le16(IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ, |
12342c47 ZY |
586 | &iwl3945_rt->rt_chbitmask); |
587 | else /* 802.11g */ | |
533dd1b0 | 588 | put_unaligned_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ, |
12342c47 ZY |
589 | &iwl3945_rt->rt_chbitmask); |
590 | ||
12342c47 ZY |
591 | if (rate == -1) |
592 | iwl3945_rt->rt_rate = 0; | |
593 | else | |
594 | iwl3945_rt->rt_rate = iwl3945_rates[rate].ieee; | |
595 | ||
596 | /* antenna number */ | |
a0b484fe JB |
597 | antenna = phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK; |
598 | iwl3945_rt->rt_antenna = le16_to_cpu(antenna) >> 4; | |
12342c47 ZY |
599 | |
600 | /* set the preamble flag if we have it */ | |
601 | if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) | |
602 | iwl3945_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; | |
603 | ||
604 | stats->flag |= RX_FLAG_RADIOTAP; | |
605 | } | |
606 | ||
bb8c093b CH |
607 | static void iwl3945_handle_data_packet(struct iwl3945_priv *priv, int is_data, |
608 | struct iwl3945_rx_mem_buffer *rxb, | |
12342c47 | 609 | struct ieee80211_rx_status *stats) |
b481de9c ZY |
610 | { |
611 | struct ieee80211_hdr *hdr; | |
bb8c093b CH |
612 | struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; |
613 | struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); | |
614 | struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); | |
b481de9c ZY |
615 | short len = le16_to_cpu(rx_hdr->len); |
616 | ||
617 | /* We received data from the HW, so stop the watchdog */ | |
618 | if (unlikely((len + IWL_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) { | |
619 | IWL_DEBUG_DROP("Corruption detected!\n"); | |
620 | return; | |
621 | } | |
622 | ||
623 | /* We only process data packets if the interface is open */ | |
624 | if (unlikely(!priv->is_open)) { | |
625 | IWL_DEBUG_DROP_LIMIT | |
626 | ("Dropping packet while interface is not open.\n"); | |
627 | return; | |
628 | } | |
b481de9c ZY |
629 | |
630 | skb_reserve(rxb->skb, (void *)rx_hdr->payload - (void *)pkt); | |
631 | /* Set the size of the skb to the size of the frame */ | |
632 | skb_put(rxb->skb, le16_to_cpu(rx_hdr->len)); | |
633 | ||
634 | hdr = (void *)rxb->skb->data; | |
635 | ||
bb8c093b CH |
636 | if (iwl3945_param_hwcrypto) |
637 | iwl3945_set_decrypted_flag(priv, rxb->skb, | |
b481de9c ZY |
638 | le32_to_cpu(rx_end->status), stats); |
639 | ||
12342c47 ZY |
640 | if (priv->add_radiotap) |
641 | iwl3945_add_radiotap(priv, rxb->skb, rx_hdr, stats); | |
642 | ||
ab53d8af MA |
643 | #ifdef CONFIG_IWL3945_LEDS |
644 | if (is_data) | |
645 | priv->rxtxpackets += len; | |
646 | #endif | |
b481de9c ZY |
647 | ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); |
648 | rxb->skb = NULL; | |
649 | } | |
650 | ||
7878a5a4 MA |
651 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
652 | ||
bb8c093b CH |
653 | static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, |
654 | struct iwl3945_rx_mem_buffer *rxb) | |
b481de9c | 655 | { |
17744ff6 TW |
656 | struct ieee80211_hdr *header; |
657 | struct ieee80211_rx_status rx_status; | |
bb8c093b CH |
658 | struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data; |
659 | struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt); | |
660 | struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); | |
661 | struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); | |
17744ff6 | 662 | int snr; |
b481de9c ZY |
663 | u16 rx_stats_sig_avg = le16_to_cpu(rx_stats->sig_avg); |
664 | u16 rx_stats_noise_diff = le16_to_cpu(rx_stats->noise_diff); | |
b481de9c | 665 | u8 network_packet; |
17744ff6 TW |
666 | |
667 | rx_status.antenna = 0; | |
668 | rx_status.flag = 0; | |
669 | rx_status.mactime = le64_to_cpu(rx_end->timestamp); | |
dc92e497 | 670 | rx_status.freq = |
c0186078 | 671 | ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel)); |
17744ff6 TW |
672 | rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? |
673 | IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; | |
674 | ||
675 | rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate); | |
17744ff6 TW |
676 | if (rx_status.band == IEEE80211_BAND_5GHZ) |
677 | rx_status.rate_idx -= IWL_FIRST_OFDM_RATE; | |
b481de9c ZY |
678 | |
679 | if ((unlikely(rx_stats->phy_count > 20))) { | |
680 | IWL_DEBUG_DROP | |
681 | ("dsp size out of range [0,20]: " | |
682 | "%d/n", rx_stats->phy_count); | |
683 | return; | |
684 | } | |
685 | ||
686 | if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) | |
687 | || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { | |
688 | IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status); | |
689 | return; | |
690 | } | |
691 | ||
692 | if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { | |
17744ff6 | 693 | iwl3945_handle_data_packet(priv, 1, rxb, &rx_status); |
b481de9c ZY |
694 | return; |
695 | } | |
696 | ||
697 | /* Convert 3945's rssi indicator to dBm */ | |
566bfe5a | 698 | rx_status.signal = rx_stats->rssi - IWL_RSSI_OFFSET; |
b481de9c ZY |
699 | |
700 | /* Set default noise value to -127 */ | |
701 | if (priv->last_rx_noise == 0) | |
702 | priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE; | |
703 | ||
704 | /* 3945 provides noise info for OFDM frames only. | |
705 | * sig_avg and noise_diff are measured by the 3945's digital signal | |
706 | * processor (DSP), and indicate linear levels of signal level and | |
707 | * distortion/noise within the packet preamble after | |
708 | * automatic gain control (AGC). sig_avg should stay fairly | |
709 | * constant if the radio's AGC is working well. | |
710 | * Since these values are linear (not dB or dBm), linear | |
711 | * signal-to-noise ratio (SNR) is (sig_avg / noise_diff). | |
712 | * Convert linear SNR to dB SNR, then subtract that from rssi dBm | |
713 | * to obtain noise level in dBm. | |
17744ff6 | 714 | * Calculate rx_status.signal (quality indicator in %) based on SNR. */ |
b481de9c ZY |
715 | if (rx_stats_noise_diff) { |
716 | snr = rx_stats_sig_avg / rx_stats_noise_diff; | |
566bfe5a | 717 | rx_status.noise = rx_status.signal - |
17744ff6 | 718 | iwl3945_calc_db_from_ratio(snr); |
566bfe5a | 719 | rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, |
17744ff6 | 720 | rx_status.noise); |
b481de9c ZY |
721 | |
722 | /* If noise info not available, calculate signal quality indicator (%) | |
723 | * using just the dBm signal level. */ | |
724 | } else { | |
17744ff6 | 725 | rx_status.noise = priv->last_rx_noise; |
566bfe5a | 726 | rx_status.qual = iwl3945_calc_sig_qual(rx_status.signal, 0); |
b481de9c ZY |
727 | } |
728 | ||
729 | ||
730 | IWL_DEBUG_STATS("Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n", | |
566bfe5a | 731 | rx_status.signal, rx_status.noise, rx_status.qual, |
b481de9c ZY |
732 | rx_stats_sig_avg, rx_stats_noise_diff); |
733 | ||
b481de9c ZY |
734 | header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt); |
735 | ||
bb8c093b | 736 | network_packet = iwl3945_is_network_packet(priv, header); |
b481de9c | 737 | |
17744ff6 TW |
738 | IWL_DEBUG_STATS_LIMIT("[%c] %d RSSI:%d Signal:%u, Noise:%u, Rate:%u\n", |
739 | network_packet ? '*' : ' ', | |
740 | le16_to_cpu(rx_hdr->channel), | |
566bfe5a BR |
741 | rx_status.signal, rx_status.signal, |
742 | rx_status.noise, rx_status.rate_idx); | |
b481de9c | 743 | |
17744ff6 | 744 | #ifdef CONFIG_IWL3945_DEBUG |
bb8c093b | 745 | if (iwl3945_debug_level & (IWL_DL_RX)) |
b481de9c | 746 | /* Set "1" to report good data frames in groups of 100 */ |
17744ff6 | 747 | iwl3945_dbg_report_frame(priv, pkt, header, 1); |
b481de9c ZY |
748 | #endif |
749 | ||
750 | if (network_packet) { | |
751 | priv->last_beacon_time = le32_to_cpu(rx_end->beacon_timestamp); | |
752 | priv->last_tsf = le64_to_cpu(rx_end->timestamp); | |
566bfe5a | 753 | priv->last_rx_rssi = rx_status.signal; |
17744ff6 | 754 | priv->last_rx_noise = rx_status.noise; |
b481de9c ZY |
755 | } |
756 | ||
757 | switch (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FTYPE) { | |
758 | case IEEE80211_FTYPE_MGMT: | |
759 | switch (le16_to_cpu(header->frame_control) & | |
760 | IEEE80211_FCTL_STYPE) { | |
761 | case IEEE80211_STYPE_PROBE_RESP: | |
762 | case IEEE80211_STYPE_BEACON:{ | |
763 | /* If this is a beacon or probe response for | |
764 | * our network then cache the beacon | |
765 | * timestamp */ | |
766 | if ((((priv->iw_mode == IEEE80211_IF_TYPE_STA) | |
767 | && !compare_ether_addr(header->addr2, | |
768 | priv->bssid)) || | |
769 | ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) | |
770 | && !compare_ether_addr(header->addr3, | |
771 | priv->bssid)))) { | |
772 | struct ieee80211_mgmt *mgmt = | |
773 | (struct ieee80211_mgmt *)header; | |
774 | __le32 *pos; | |
775 | pos = | |
776 | (__le32 *) & mgmt->u.beacon. | |
777 | timestamp; | |
778 | priv->timestamp0 = le32_to_cpu(pos[0]); | |
779 | priv->timestamp1 = le32_to_cpu(pos[1]); | |
780 | priv->beacon_int = le16_to_cpu( | |
781 | mgmt->u.beacon.beacon_int); | |
782 | if (priv->call_post_assoc_from_beacon && | |
783 | (priv->iw_mode == | |
784 | IEEE80211_IF_TYPE_STA)) | |
785 | queue_work(priv->workqueue, | |
786 | &priv->post_associate.work); | |
787 | ||
788 | priv->call_post_assoc_from_beacon = 0; | |
789 | } | |
790 | ||
791 | break; | |
792 | } | |
793 | ||
794 | case IEEE80211_STYPE_ACTION: | |
795 | /* TODO: Parse 802.11h frames for CSA... */ | |
796 | break; | |
797 | ||
798 | /* | |
471b3efd JB |
799 | * TODO: Use the new callback function from |
800 | * mac80211 instead of sniffing these packets. | |
b481de9c ZY |
801 | */ |
802 | case IEEE80211_STYPE_ASSOC_RESP: | |
803 | case IEEE80211_STYPE_REASSOC_RESP:{ | |
804 | struct ieee80211_mgmt *mgnt = | |
805 | (struct ieee80211_mgmt *)header; | |
7878a5a4 MA |
806 | |
807 | /* We have just associated, give some | |
808 | * time for the 4-way handshake if | |
809 | * any. Don't start scan too early. */ | |
810 | priv->next_scan_jiffies = jiffies + | |
811 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
812 | ||
b481de9c ZY |
813 | priv->assoc_id = (~((1 << 15) | (1 << 14)) & |
814 | le16_to_cpu(mgnt->u. | |
815 | assoc_resp.aid)); | |
816 | priv->assoc_capability = | |
817 | le16_to_cpu(mgnt->u.assoc_resp.capab_info); | |
818 | if (priv->beacon_int) | |
819 | queue_work(priv->workqueue, | |
820 | &priv->post_associate.work); | |
821 | else | |
822 | priv->call_post_assoc_from_beacon = 1; | |
823 | break; | |
824 | } | |
825 | ||
826 | case IEEE80211_STYPE_PROBE_REQ:{ | |
0795af57 JP |
827 | DECLARE_MAC_BUF(mac1); |
828 | DECLARE_MAC_BUF(mac2); | |
829 | DECLARE_MAC_BUF(mac3); | |
b481de9c ZY |
830 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) |
831 | IWL_DEBUG_DROP | |
0795af57 JP |
832 | ("Dropping (non network): %s" |
833 | ", %s, %s\n", | |
834 | print_mac(mac1, header->addr1), | |
835 | print_mac(mac2, header->addr2), | |
836 | print_mac(mac3, header->addr3)); | |
b481de9c ZY |
837 | return; |
838 | } | |
839 | } | |
840 | ||
17744ff6 | 841 | iwl3945_handle_data_packet(priv, 0, rxb, &rx_status); |
b481de9c ZY |
842 | break; |
843 | ||
844 | case IEEE80211_FTYPE_CTL: | |
845 | break; | |
846 | ||
0795af57 JP |
847 | case IEEE80211_FTYPE_DATA: { |
848 | DECLARE_MAC_BUF(mac1); | |
849 | DECLARE_MAC_BUF(mac2); | |
850 | DECLARE_MAC_BUF(mac3); | |
851 | ||
bb8c093b | 852 | if (unlikely(iwl3945_is_duplicate_packet(priv, header))) |
0795af57 JP |
853 | IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n", |
854 | print_mac(mac1, header->addr1), | |
855 | print_mac(mac2, header->addr2), | |
856 | print_mac(mac3, header->addr3)); | |
b481de9c | 857 | else |
17744ff6 | 858 | iwl3945_handle_data_packet(priv, 1, rxb, &rx_status); |
b481de9c ZY |
859 | break; |
860 | } | |
0795af57 | 861 | } |
b481de9c ZY |
862 | } |
863 | ||
bb8c093b | 864 | int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *ptr, |
b481de9c ZY |
865 | dma_addr_t addr, u16 len) |
866 | { | |
867 | int count; | |
868 | u32 pad; | |
bb8c093b | 869 | struct iwl3945_tfd_frame *tfd = (struct iwl3945_tfd_frame *)ptr; |
b481de9c ZY |
870 | |
871 | count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); | |
872 | pad = TFD_CTL_PAD_GET(le32_to_cpu(tfd->control_flags)); | |
873 | ||
874 | if ((count >= NUM_TFD_CHUNKS) || (count < 0)) { | |
875 | IWL_ERROR("Error can not send more than %d chunks\n", | |
876 | NUM_TFD_CHUNKS); | |
877 | return -EINVAL; | |
878 | } | |
879 | ||
880 | tfd->pa[count].addr = cpu_to_le32(addr); | |
881 | tfd->pa[count].len = cpu_to_le32(len); | |
882 | ||
883 | count++; | |
884 | ||
885 | tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) | | |
886 | TFD_CTL_PAD_SET(pad)); | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
891 | /** | |
bb8c093b | 892 | * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr] |
b481de9c ZY |
893 | * |
894 | * Does NOT advance any indexes | |
895 | */ | |
bb8c093b | 896 | int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c | 897 | { |
bb8c093b CH |
898 | struct iwl3945_tfd_frame *bd_tmp = (struct iwl3945_tfd_frame *)&txq->bd[0]; |
899 | struct iwl3945_tfd_frame *bd = &bd_tmp[txq->q.read_ptr]; | |
b481de9c ZY |
900 | struct pci_dev *dev = priv->pci_dev; |
901 | int i; | |
902 | int counter; | |
903 | ||
904 | /* classify bd */ | |
905 | if (txq->q.id == IWL_CMD_QUEUE_NUM) | |
906 | /* nothing to cleanup after for host commands */ | |
907 | return 0; | |
908 | ||
909 | /* sanity check */ | |
910 | counter = TFD_CTL_COUNT_GET(le32_to_cpu(bd->control_flags)); | |
911 | if (counter > NUM_TFD_CHUNKS) { | |
912 | IWL_ERROR("Too many chunks: %i\n", counter); | |
913 | /* @todo issue fatal error, it is quite serious situation */ | |
914 | return 0; | |
915 | } | |
916 | ||
917 | /* unmap chunks if any */ | |
918 | ||
919 | for (i = 1; i < counter; i++) { | |
920 | pci_unmap_single(dev, le32_to_cpu(bd->pa[i].addr), | |
921 | le32_to_cpu(bd->pa[i].len), PCI_DMA_TODEVICE); | |
fc4b6853 TW |
922 | if (txq->txb[txq->q.read_ptr].skb[0]) { |
923 | struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0]; | |
924 | if (txq->txb[txq->q.read_ptr].skb[0]) { | |
b481de9c ZY |
925 | /* Can be called from interrupt context */ |
926 | dev_kfree_skb_any(skb); | |
fc4b6853 | 927 | txq->txb[txq->q.read_ptr].skb[0] = NULL; |
b481de9c ZY |
928 | } |
929 | } | |
930 | } | |
931 | return 0; | |
932 | } | |
933 | ||
bb8c093b | 934 | u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *addr) |
b481de9c ZY |
935 | { |
936 | int i; | |
937 | int ret = IWL_INVALID_STATION; | |
938 | unsigned long flags; | |
0795af57 | 939 | DECLARE_MAC_BUF(mac); |
b481de9c ZY |
940 | |
941 | spin_lock_irqsave(&priv->sta_lock, flags); | |
942 | for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) | |
943 | if ((priv->stations[i].used) && | |
944 | (!compare_ether_addr | |
945 | (priv->stations[i].sta.sta.addr, addr))) { | |
946 | ret = i; | |
947 | goto out; | |
948 | } | |
949 | ||
0795af57 JP |
950 | IWL_DEBUG_INFO("can not find STA %s (total %d)\n", |
951 | print_mac(mac, addr), priv->num_stations); | |
b481de9c ZY |
952 | out: |
953 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
954 | return ret; | |
955 | } | |
956 | ||
957 | /** | |
bb8c093b | 958 | * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: |
b481de9c ZY |
959 | * |
960 | */ | |
bb8c093b CH |
961 | void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv, |
962 | struct iwl3945_cmd *cmd, | |
b481de9c ZY |
963 | struct ieee80211_tx_control *ctrl, |
964 | struct ieee80211_hdr *hdr, int sta_id, int tx_id) | |
965 | { | |
966 | unsigned long flags; | |
2e92e6f2 JB |
967 | u16 hw_value = ieee80211_get_tx_rate(priv->hw, ctrl)->hw_value; |
968 | u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT - 1); | |
b481de9c ZY |
969 | u16 rate_mask; |
970 | int rate; | |
971 | u8 rts_retry_limit; | |
972 | u8 data_retry_limit; | |
973 | __le32 tx_flags; | |
974 | u16 fc = le16_to_cpu(hdr->frame_control); | |
975 | ||
bb8c093b | 976 | rate = iwl3945_rates[rate_index].plcp; |
b481de9c ZY |
977 | tx_flags = cmd->cmd.tx.tx_flags; |
978 | ||
979 | /* We need to figure out how to get the sta->supp_rates while | |
980 | * in this running context; perhaps encoding into ctrl->tx_rate? */ | |
981 | rate_mask = IWL_RATES_MASK; | |
982 | ||
983 | spin_lock_irqsave(&priv->sta_lock, flags); | |
984 | ||
985 | priv->stations[sta_id].current_rate.rate_n_flags = rate; | |
986 | ||
987 | if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && | |
a4062b8f | 988 | (sta_id != priv->hw_setting.bcast_sta_id) && |
b481de9c ZY |
989 | (sta_id != IWL_MULTICAST_ID)) |
990 | priv->stations[IWL_STA_ID].current_rate.rate_n_flags = rate; | |
991 | ||
992 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
993 | ||
994 | if (tx_id >= IWL_CMD_QUEUE_NUM) | |
995 | rts_retry_limit = 3; | |
996 | else | |
997 | rts_retry_limit = 7; | |
998 | ||
999 | if (ieee80211_is_probe_response(fc)) { | |
1000 | data_retry_limit = 3; | |
1001 | if (data_retry_limit < rts_retry_limit) | |
1002 | rts_retry_limit = data_retry_limit; | |
1003 | } else | |
1004 | data_retry_limit = IWL_DEFAULT_TX_RETRY; | |
1005 | ||
1006 | if (priv->data_retry_limit != -1) | |
1007 | data_retry_limit = priv->data_retry_limit; | |
1008 | ||
1009 | if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { | |
1010 | switch (fc & IEEE80211_FCTL_STYPE) { | |
1011 | case IEEE80211_STYPE_AUTH: | |
1012 | case IEEE80211_STYPE_DEAUTH: | |
1013 | case IEEE80211_STYPE_ASSOC_REQ: | |
1014 | case IEEE80211_STYPE_REASSOC_REQ: | |
1015 | if (tx_flags & TX_CMD_FLG_RTS_MSK) { | |
1016 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; | |
1017 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
1018 | } | |
1019 | break; | |
1020 | default: | |
1021 | break; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | cmd->cmd.tx.rts_retry_limit = rts_retry_limit; | |
1026 | cmd->cmd.tx.data_retry_limit = data_retry_limit; | |
1027 | cmd->cmd.tx.rate = rate; | |
1028 | cmd->cmd.tx.tx_flags = tx_flags; | |
1029 | ||
1030 | /* OFDM */ | |
14577f23 MA |
1031 | cmd->cmd.tx.supp_rates[0] = |
1032 | ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
b481de9c ZY |
1033 | |
1034 | /* CCK */ | |
14577f23 | 1035 | cmd->cmd.tx.supp_rates[1] = (rate_mask & 0xF); |
b481de9c ZY |
1036 | |
1037 | IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " | |
1038 | "cck/ofdm mask: 0x%x/0x%x\n", sta_id, | |
1039 | cmd->cmd.tx.rate, le32_to_cpu(cmd->cmd.tx.tx_flags), | |
1040 | cmd->cmd.tx.supp_rates[1], cmd->cmd.tx.supp_rates[0]); | |
1041 | } | |
1042 | ||
bb8c093b | 1043 | u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id, u16 tx_rate, u8 flags) |
b481de9c ZY |
1044 | { |
1045 | unsigned long flags_spin; | |
bb8c093b | 1046 | struct iwl3945_station_entry *station; |
b481de9c ZY |
1047 | |
1048 | if (sta_id == IWL_INVALID_STATION) | |
1049 | return IWL_INVALID_STATION; | |
1050 | ||
1051 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
1052 | station = &priv->stations[sta_id]; | |
1053 | ||
1054 | station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK; | |
1055 | station->sta.rate_n_flags = cpu_to_le16(tx_rate); | |
1056 | station->current_rate.rate_n_flags = tx_rate; | |
1057 | station->sta.mode = STA_CONTROL_MODIFY_MSK; | |
1058 | ||
1059 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
1060 | ||
bb8c093b | 1061 | iwl3945_send_add_station(priv, &station->sta, flags); |
b481de9c ZY |
1062 | IWL_DEBUG_RATE("SCALE sync station %d to rate %d\n", |
1063 | sta_id, tx_rate); | |
1064 | return sta_id; | |
1065 | } | |
1066 | ||
bb8c093b | 1067 | static int iwl3945_nic_set_pwr_src(struct iwl3945_priv *priv, int pwr_max) |
b481de9c ZY |
1068 | { |
1069 | int rc; | |
1070 | unsigned long flags; | |
1071 | ||
1072 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1073 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
1074 | if (rc) { |
1075 | spin_unlock_irqrestore(&priv->lock, flags); | |
1076 | return rc; | |
1077 | } | |
1078 | ||
1079 | if (!pwr_max) { | |
1080 | u32 val; | |
1081 | ||
1082 | rc = pci_read_config_dword(priv->pci_dev, | |
1083 | PCI_POWER_SOURCE, &val); | |
1084 | if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) { | |
bb8c093b | 1085 | iwl3945_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
b481de9c ZY |
1086 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, |
1087 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
bb8c093b | 1088 | iwl3945_release_nic_access(priv); |
b481de9c | 1089 | |
bb8c093b | 1090 | iwl3945_poll_bit(priv, CSR_GPIO_IN, |
b481de9c ZY |
1091 | CSR_GPIO_IN_VAL_VAUX_PWR_SRC, |
1092 | CSR_GPIO_IN_BIT_AUX_POWER, 5000); | |
1093 | } else | |
bb8c093b | 1094 | iwl3945_release_nic_access(priv); |
b481de9c | 1095 | } else { |
bb8c093b | 1096 | iwl3945_set_bits_mask_prph(priv, APMG_PS_CTRL_REG, |
b481de9c ZY |
1097 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, |
1098 | ~APMG_PS_CTRL_MSK_PWR_SRC); | |
1099 | ||
bb8c093b CH |
1100 | iwl3945_release_nic_access(priv); |
1101 | iwl3945_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC, | |
b481de9c ZY |
1102 | CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */ |
1103 | } | |
1104 | spin_unlock_irqrestore(&priv->lock, flags); | |
1105 | ||
1106 | return rc; | |
1107 | } | |
1108 | ||
bb8c093b | 1109 | static int iwl3945_rx_init(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq) |
b481de9c ZY |
1110 | { |
1111 | int rc; | |
1112 | unsigned long flags; | |
1113 | ||
1114 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1115 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
1116 | if (rc) { |
1117 | spin_unlock_irqrestore(&priv->lock, flags); | |
1118 | return rc; | |
1119 | } | |
1120 | ||
bb8c093b CH |
1121 | iwl3945_write_direct32(priv, FH_RCSR_RBD_BASE(0), rxq->dma_addr); |
1122 | iwl3945_write_direct32(priv, FH_RCSR_RPTR_ADDR(0), | |
b481de9c | 1123 | priv->hw_setting.shared_phys + |
bb8c093b CH |
1124 | offsetof(struct iwl3945_shared, rx_read_ptr[0])); |
1125 | iwl3945_write_direct32(priv, FH_RCSR_WPTR(0), 0); | |
1126 | iwl3945_write_direct32(priv, FH_RCSR_CONFIG(0), | |
b481de9c ZY |
1127 | ALM_FH_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | |
1128 | ALM_FH_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | | |
1129 | ALM_FH_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | | |
1130 | ALM_FH_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | | |
1131 | (RX_QUEUE_SIZE_LOG << ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) | | |
1132 | ALM_FH_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | | |
1133 | (1 << ALM_FH_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) | | |
1134 | ALM_FH_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); | |
1135 | ||
1136 | /* fake read to flush all prev I/O */ | |
bb8c093b | 1137 | iwl3945_read_direct32(priv, FH_RSSR_CTRL); |
b481de9c | 1138 | |
bb8c093b | 1139 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
1140 | spin_unlock_irqrestore(&priv->lock, flags); |
1141 | ||
1142 | return 0; | |
1143 | } | |
1144 | ||
bb8c093b | 1145 | static int iwl3945_tx_reset(struct iwl3945_priv *priv) |
b481de9c ZY |
1146 | { |
1147 | int rc; | |
1148 | unsigned long flags; | |
1149 | ||
1150 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1151 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
1152 | if (rc) { |
1153 | spin_unlock_irqrestore(&priv->lock, flags); | |
1154 | return rc; | |
1155 | } | |
1156 | ||
1157 | /* bypass mode */ | |
bb8c093b | 1158 | iwl3945_write_prph(priv, ALM_SCD_MODE_REG, 0x2); |
b481de9c ZY |
1159 | |
1160 | /* RA 0 is active */ | |
bb8c093b | 1161 | iwl3945_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01); |
b481de9c ZY |
1162 | |
1163 | /* all 6 fifo are active */ | |
bb8c093b | 1164 | iwl3945_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f); |
b481de9c | 1165 | |
bb8c093b CH |
1166 | iwl3945_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000); |
1167 | iwl3945_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002); | |
1168 | iwl3945_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004); | |
1169 | iwl3945_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005); | |
b481de9c | 1170 | |
bb8c093b | 1171 | iwl3945_write_direct32(priv, FH_TSSR_CBB_BASE, |
b481de9c ZY |
1172 | priv->hw_setting.shared_phys); |
1173 | ||
bb8c093b | 1174 | iwl3945_write_direct32(priv, FH_TSSR_MSG_CONFIG, |
b481de9c ZY |
1175 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | |
1176 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | | |
1177 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | | |
1178 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | | |
1179 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | | |
1180 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | | |
1181 | ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); | |
1182 | ||
bb8c093b | 1183 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
1184 | spin_unlock_irqrestore(&priv->lock, flags); |
1185 | ||
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | /** | |
1190 | * iwl3945_txq_ctx_reset - Reset TX queue context | |
1191 | * | |
1192 | * Destroys all DMA structures and initialize them again | |
1193 | */ | |
bb8c093b | 1194 | static int iwl3945_txq_ctx_reset(struct iwl3945_priv *priv) |
b481de9c ZY |
1195 | { |
1196 | int rc; | |
1197 | int txq_id, slots_num; | |
1198 | ||
bb8c093b | 1199 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c ZY |
1200 | |
1201 | /* Tx CMD queue */ | |
1202 | rc = iwl3945_tx_reset(priv); | |
1203 | if (rc) | |
1204 | goto error; | |
1205 | ||
1206 | /* Tx queue(s) */ | |
1207 | for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++) { | |
1208 | slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ? | |
1209 | TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; | |
bb8c093b | 1210 | rc = iwl3945_tx_queue_init(priv, &priv->txq[txq_id], slots_num, |
b481de9c ZY |
1211 | txq_id); |
1212 | if (rc) { | |
1213 | IWL_ERROR("Tx %d queue init failed\n", txq_id); | |
1214 | goto error; | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | return rc; | |
1219 | ||
1220 | error: | |
bb8c093b | 1221 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c ZY |
1222 | return rc; |
1223 | } | |
1224 | ||
bb8c093b | 1225 | int iwl3945_hw_nic_init(struct iwl3945_priv *priv) |
b481de9c ZY |
1226 | { |
1227 | u8 rev_id; | |
1228 | int rc; | |
1229 | unsigned long flags; | |
bb8c093b | 1230 | struct iwl3945_rx_queue *rxq = &priv->rxq; |
b481de9c | 1231 | |
bb8c093b | 1232 | iwl3945_power_init_handle(priv); |
b481de9c ZY |
1233 | |
1234 | spin_lock_irqsave(&priv->lock, flags); | |
a693f187 | 1235 | iwl3945_set_bit(priv, CSR_ANA_PLL_CFG, CSR39_ANA_PLL_CFG_VAL); |
bb8c093b | 1236 | iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
b481de9c ZY |
1237 | CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); |
1238 | ||
bb8c093b CH |
1239 | iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
1240 | rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL, | |
b481de9c ZY |
1241 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, |
1242 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
1243 | if (rc < 0) { | |
1244 | spin_unlock_irqrestore(&priv->lock, flags); | |
1245 | IWL_DEBUG_INFO("Failed to init the card\n"); | |
1246 | return rc; | |
1247 | } | |
1248 | ||
bb8c093b | 1249 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
1250 | if (rc) { |
1251 | spin_unlock_irqrestore(&priv->lock, flags); | |
1252 | return rc; | |
1253 | } | |
bb8c093b | 1254 | iwl3945_write_prph(priv, APMG_CLK_EN_REG, |
b481de9c ZY |
1255 | APMG_CLK_VAL_DMA_CLK_RQT | |
1256 | APMG_CLK_VAL_BSM_CLK_RQT); | |
1257 | udelay(20); | |
bb8c093b | 1258 | iwl3945_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
b481de9c | 1259 | APMG_PCIDEV_STT_VAL_L1_ACT_DIS); |
bb8c093b | 1260 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
1261 | spin_unlock_irqrestore(&priv->lock, flags); |
1262 | ||
1263 | /* Determine HW type */ | |
1264 | rc = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); | |
1265 | if (rc) | |
1266 | return rc; | |
1267 | IWL_DEBUG_INFO("HW Revision ID = 0x%X\n", rev_id); | |
1268 | ||
1269 | iwl3945_nic_set_pwr_src(priv, 1); | |
1270 | spin_lock_irqsave(&priv->lock, flags); | |
1271 | ||
1272 | if (rev_id & PCI_CFG_REV_ID_BIT_RTP) | |
1273 | IWL_DEBUG_INFO("RTP type \n"); | |
1274 | else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) { | |
6f83eaa1 | 1275 | IWL_DEBUG_INFO("3945 RADIO-MB type\n"); |
bb8c093b | 1276 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1277 | CSR39_HW_IF_CONFIG_REG_BIT_3945_MB); |
b481de9c | 1278 | } else { |
6f83eaa1 | 1279 | IWL_DEBUG_INFO("3945 RADIO-MM type\n"); |
bb8c093b | 1280 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1281 | CSR39_HW_IF_CONFIG_REG_BIT_3945_MM); |
b481de9c ZY |
1282 | } |
1283 | ||
b481de9c ZY |
1284 | if (EEPROM_SKU_CAP_OP_MODE_MRC == priv->eeprom.sku_cap) { |
1285 | IWL_DEBUG_INFO("SKU OP mode is mrc\n"); | |
bb8c093b | 1286 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1287 | CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC); |
b481de9c ZY |
1288 | } else |
1289 | IWL_DEBUG_INFO("SKU OP mode is basic\n"); | |
1290 | ||
1291 | if ((priv->eeprom.board_revision & 0xF0) == 0xD0) { | |
1292 | IWL_DEBUG_INFO("3945ABG revision is 0x%X\n", | |
1293 | priv->eeprom.board_revision); | |
bb8c093b | 1294 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1295 | CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); |
b481de9c ZY |
1296 | } else { |
1297 | IWL_DEBUG_INFO("3945ABG revision is 0x%X\n", | |
1298 | priv->eeprom.board_revision); | |
bb8c093b | 1299 | iwl3945_clear_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1300 | CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); |
b481de9c ZY |
1301 | } |
1302 | ||
1303 | if (priv->eeprom.almgor_m_version <= 1) { | |
bb8c093b | 1304 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1305 | CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); |
b481de9c ZY |
1306 | IWL_DEBUG_INFO("Card M type A version is 0x%X\n", |
1307 | priv->eeprom.almgor_m_version); | |
1308 | } else { | |
1309 | IWL_DEBUG_INFO("Card M type B version is 0x%X\n", | |
1310 | priv->eeprom.almgor_m_version); | |
bb8c093b | 1311 | iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
6f83eaa1 | 1312 | CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); |
b481de9c ZY |
1313 | } |
1314 | spin_unlock_irqrestore(&priv->lock, flags); | |
1315 | ||
1316 | if (priv->eeprom.sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) | |
1317 | IWL_DEBUG_RF_KILL("SW RF KILL supported in EEPROM.\n"); | |
1318 | ||
1319 | if (priv->eeprom.sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) | |
1320 | IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n"); | |
1321 | ||
1322 | /* Allocate the RX queue, or reset if it is already allocated */ | |
1323 | if (!rxq->bd) { | |
bb8c093b | 1324 | rc = iwl3945_rx_queue_alloc(priv); |
b481de9c ZY |
1325 | if (rc) { |
1326 | IWL_ERROR("Unable to initialize Rx queue\n"); | |
1327 | return -ENOMEM; | |
1328 | } | |
1329 | } else | |
bb8c093b | 1330 | iwl3945_rx_queue_reset(priv, rxq); |
b481de9c | 1331 | |
bb8c093b | 1332 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
1333 | |
1334 | iwl3945_rx_init(priv, rxq); | |
1335 | ||
1336 | spin_lock_irqsave(&priv->lock, flags); | |
1337 | ||
1338 | /* Look at using this instead: | |
1339 | rxq->need_update = 1; | |
bb8c093b | 1340 | iwl3945_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
1341 | */ |
1342 | ||
bb8c093b | 1343 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
1344 | if (rc) { |
1345 | spin_unlock_irqrestore(&priv->lock, flags); | |
1346 | return rc; | |
1347 | } | |
bb8c093b CH |
1348 | iwl3945_write_direct32(priv, FH_RCSR_WPTR(0), rxq->write & ~7); |
1349 | iwl3945_release_nic_access(priv); | |
b481de9c ZY |
1350 | |
1351 | spin_unlock_irqrestore(&priv->lock, flags); | |
1352 | ||
1353 | rc = iwl3945_txq_ctx_reset(priv); | |
1354 | if (rc) | |
1355 | return rc; | |
1356 | ||
1357 | set_bit(STATUS_INIT, &priv->status); | |
1358 | ||
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | /** | |
bb8c093b | 1363 | * iwl3945_hw_txq_ctx_free - Free TXQ Context |
b481de9c ZY |
1364 | * |
1365 | * Destroy all TX DMA queues and structures | |
1366 | */ | |
bb8c093b | 1367 | void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv) |
b481de9c ZY |
1368 | { |
1369 | int txq_id; | |
1370 | ||
1371 | /* Tx queues */ | |
1372 | for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++) | |
bb8c093b | 1373 | iwl3945_tx_queue_free(priv, &priv->txq[txq_id]); |
b481de9c ZY |
1374 | } |
1375 | ||
bb8c093b | 1376 | void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv) |
b481de9c ZY |
1377 | { |
1378 | int queue; | |
1379 | unsigned long flags; | |
1380 | ||
1381 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1382 | if (iwl3945_grab_nic_access(priv)) { |
b481de9c | 1383 | spin_unlock_irqrestore(&priv->lock, flags); |
bb8c093b | 1384 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c ZY |
1385 | return; |
1386 | } | |
1387 | ||
1388 | /* stop SCD */ | |
bb8c093b | 1389 | iwl3945_write_prph(priv, ALM_SCD_MODE_REG, 0); |
b481de9c ZY |
1390 | |
1391 | /* reset TFD queues */ | |
1392 | for (queue = TFD_QUEUE_MIN; queue < TFD_QUEUE_MAX; queue++) { | |
bb8c093b CH |
1393 | iwl3945_write_direct32(priv, FH_TCSR_CONFIG(queue), 0x0); |
1394 | iwl3945_poll_direct_bit(priv, FH_TSSR_TX_STATUS, | |
b481de9c ZY |
1395 | ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(queue), |
1396 | 1000); | |
1397 | } | |
1398 | ||
bb8c093b | 1399 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
1400 | spin_unlock_irqrestore(&priv->lock, flags); |
1401 | ||
bb8c093b | 1402 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c ZY |
1403 | } |
1404 | ||
bb8c093b | 1405 | int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv) |
b481de9c ZY |
1406 | { |
1407 | int rc = 0; | |
1408 | u32 reg_val; | |
1409 | unsigned long flags; | |
1410 | ||
1411 | spin_lock_irqsave(&priv->lock, flags); | |
1412 | ||
1413 | /* set stop master bit */ | |
bb8c093b | 1414 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); |
b481de9c | 1415 | |
bb8c093b | 1416 | reg_val = iwl3945_read32(priv, CSR_GP_CNTRL); |
b481de9c ZY |
1417 | |
1418 | if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE == | |
1419 | (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) | |
1420 | IWL_DEBUG_INFO("Card in power save, master is already " | |
1421 | "stopped\n"); | |
1422 | else { | |
bb8c093b | 1423 | rc = iwl3945_poll_bit(priv, CSR_RESET, |
b481de9c ZY |
1424 | CSR_RESET_REG_FLAG_MASTER_DISABLED, |
1425 | CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); | |
1426 | if (rc < 0) { | |
1427 | spin_unlock_irqrestore(&priv->lock, flags); | |
1428 | return rc; | |
1429 | } | |
1430 | } | |
1431 | ||
1432 | spin_unlock_irqrestore(&priv->lock, flags); | |
1433 | IWL_DEBUG_INFO("stop master\n"); | |
1434 | ||
1435 | return rc; | |
1436 | } | |
1437 | ||
bb8c093b | 1438 | int iwl3945_hw_nic_reset(struct iwl3945_priv *priv) |
b481de9c ZY |
1439 | { |
1440 | int rc; | |
1441 | unsigned long flags; | |
1442 | ||
bb8c093b | 1443 | iwl3945_hw_nic_stop_master(priv); |
b481de9c ZY |
1444 | |
1445 | spin_lock_irqsave(&priv->lock, flags); | |
1446 | ||
bb8c093b | 1447 | iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
b481de9c | 1448 | |
bb8c093b | 1449 | rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
1450 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, |
1451 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); | |
1452 | ||
bb8c093b | 1453 | rc = iwl3945_grab_nic_access(priv); |
b481de9c | 1454 | if (!rc) { |
bb8c093b | 1455 | iwl3945_write_prph(priv, APMG_CLK_CTRL_REG, |
b481de9c ZY |
1456 | APMG_CLK_VAL_BSM_CLK_RQT); |
1457 | ||
1458 | udelay(10); | |
1459 | ||
bb8c093b | 1460 | iwl3945_set_bit(priv, CSR_GP_CNTRL, |
b481de9c ZY |
1461 | CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
1462 | ||
bb8c093b CH |
1463 | iwl3945_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0); |
1464 | iwl3945_write_prph(priv, APMG_RTC_INT_STT_REG, | |
b481de9c ZY |
1465 | 0xFFFFFFFF); |
1466 | ||
1467 | /* enable DMA */ | |
bb8c093b | 1468 | iwl3945_write_prph(priv, APMG_CLK_EN_REG, |
b481de9c ZY |
1469 | APMG_CLK_VAL_DMA_CLK_RQT | |
1470 | APMG_CLK_VAL_BSM_CLK_RQT); | |
1471 | udelay(10); | |
1472 | ||
bb8c093b | 1473 | iwl3945_set_bits_prph(priv, APMG_PS_CTRL_REG, |
b481de9c ZY |
1474 | APMG_PS_CTRL_VAL_RESET_REQ); |
1475 | udelay(5); | |
bb8c093b | 1476 | iwl3945_clear_bits_prph(priv, APMG_PS_CTRL_REG, |
b481de9c | 1477 | APMG_PS_CTRL_VAL_RESET_REQ); |
bb8c093b | 1478 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
1479 | } |
1480 | ||
1481 | /* Clear the 'host command active' bit... */ | |
1482 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1483 | ||
1484 | wake_up_interruptible(&priv->wait_command_queue); | |
1485 | spin_unlock_irqrestore(&priv->lock, flags); | |
1486 | ||
1487 | return rc; | |
1488 | } | |
1489 | ||
1490 | /** | |
bb8c093b | 1491 | * iwl3945_hw_reg_adjust_power_by_temp |
bbc5807b IS |
1492 | * return index delta into power gain settings table |
1493 | */ | |
bb8c093b | 1494 | static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) |
b481de9c ZY |
1495 | { |
1496 | return (new_reading - old_reading) * (-11) / 100; | |
1497 | } | |
1498 | ||
1499 | /** | |
bb8c093b | 1500 | * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range |
b481de9c | 1501 | */ |
bb8c093b | 1502 | static inline int iwl3945_hw_reg_temp_out_of_range(int temperature) |
b481de9c ZY |
1503 | { |
1504 | return (((temperature < -260) || (temperature > 25)) ? 1 : 0); | |
1505 | } | |
1506 | ||
bb8c093b | 1507 | int iwl3945_hw_get_temperature(struct iwl3945_priv *priv) |
b481de9c | 1508 | { |
bb8c093b | 1509 | return iwl3945_read32(priv, CSR_UCODE_DRV_GP2); |
b481de9c ZY |
1510 | } |
1511 | ||
1512 | /** | |
bb8c093b | 1513 | * iwl3945_hw_reg_txpower_get_temperature |
bbc5807b IS |
1514 | * get the current temperature by reading from NIC |
1515 | */ | |
bb8c093b | 1516 | static int iwl3945_hw_reg_txpower_get_temperature(struct iwl3945_priv *priv) |
b481de9c ZY |
1517 | { |
1518 | int temperature; | |
1519 | ||
bb8c093b | 1520 | temperature = iwl3945_hw_get_temperature(priv); |
b481de9c ZY |
1521 | |
1522 | /* driver's okay range is -260 to +25. | |
1523 | * human readable okay range is 0 to +285 */ | |
1524 | IWL_DEBUG_INFO("Temperature: %d\n", temperature + IWL_TEMP_CONVERT); | |
1525 | ||
1526 | /* handle insane temp reading */ | |
bb8c093b | 1527 | if (iwl3945_hw_reg_temp_out_of_range(temperature)) { |
b481de9c ZY |
1528 | IWL_ERROR("Error bad temperature value %d\n", temperature); |
1529 | ||
1530 | /* if really really hot(?), | |
1531 | * substitute the 3rd band/group's temp measured at factory */ | |
1532 | if (priv->last_temperature > 100) | |
1533 | temperature = priv->eeprom.groups[2].temperature; | |
1534 | else /* else use most recent "sane" value from driver */ | |
1535 | temperature = priv->last_temperature; | |
1536 | } | |
1537 | ||
1538 | return temperature; /* raw, not "human readable" */ | |
1539 | } | |
1540 | ||
1541 | /* Adjust Txpower only if temperature variance is greater than threshold. | |
1542 | * | |
1543 | * Both are lower than older versions' 9 degrees */ | |
1544 | #define IWL_TEMPERATURE_LIMIT_TIMER 6 | |
1545 | ||
1546 | /** | |
1547 | * is_temp_calib_needed - determines if new calibration is needed | |
1548 | * | |
1549 | * records new temperature in tx_mgr->temperature. | |
1550 | * replaces tx_mgr->last_temperature *only* if calib needed | |
1551 | * (assumes caller will actually do the calibration!). */ | |
bb8c093b | 1552 | static int is_temp_calib_needed(struct iwl3945_priv *priv) |
b481de9c ZY |
1553 | { |
1554 | int temp_diff; | |
1555 | ||
bb8c093b | 1556 | priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv); |
b481de9c ZY |
1557 | temp_diff = priv->temperature - priv->last_temperature; |
1558 | ||
1559 | /* get absolute value */ | |
1560 | if (temp_diff < 0) { | |
1561 | IWL_DEBUG_POWER("Getting cooler, delta %d,\n", temp_diff); | |
1562 | temp_diff = -temp_diff; | |
1563 | } else if (temp_diff == 0) | |
1564 | IWL_DEBUG_POWER("Same temp,\n"); | |
1565 | else | |
1566 | IWL_DEBUG_POWER("Getting warmer, delta %d,\n", temp_diff); | |
1567 | ||
1568 | /* if we don't need calibration, *don't* update last_temperature */ | |
1569 | if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) { | |
1570 | IWL_DEBUG_POWER("Timed thermal calib not needed\n"); | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | IWL_DEBUG_POWER("Timed thermal calib needed\n"); | |
1575 | ||
1576 | /* assume that caller will actually do calib ... | |
1577 | * update the "last temperature" value */ | |
1578 | priv->last_temperature = priv->temperature; | |
1579 | return 1; | |
1580 | } | |
1581 | ||
1582 | #define IWL_MAX_GAIN_ENTRIES 78 | |
1583 | #define IWL_CCK_FROM_OFDM_POWER_DIFF -5 | |
1584 | #define IWL_CCK_FROM_OFDM_INDEX_DIFF (10) | |
1585 | ||
1586 | /* radio and DSP power table, each step is 1/2 dB. | |
1587 | * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */ | |
bb8c093b | 1588 | static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = { |
b481de9c ZY |
1589 | { |
1590 | {251, 127}, /* 2.4 GHz, highest power */ | |
1591 | {251, 127}, | |
1592 | {251, 127}, | |
1593 | {251, 127}, | |
1594 | {251, 125}, | |
1595 | {251, 110}, | |
1596 | {251, 105}, | |
1597 | {251, 98}, | |
1598 | {187, 125}, | |
1599 | {187, 115}, | |
1600 | {187, 108}, | |
1601 | {187, 99}, | |
1602 | {243, 119}, | |
1603 | {243, 111}, | |
1604 | {243, 105}, | |
1605 | {243, 97}, | |
1606 | {243, 92}, | |
1607 | {211, 106}, | |
1608 | {211, 100}, | |
1609 | {179, 120}, | |
1610 | {179, 113}, | |
1611 | {179, 107}, | |
1612 | {147, 125}, | |
1613 | {147, 119}, | |
1614 | {147, 112}, | |
1615 | {147, 106}, | |
1616 | {147, 101}, | |
1617 | {147, 97}, | |
1618 | {147, 91}, | |
1619 | {115, 107}, | |
1620 | {235, 121}, | |
1621 | {235, 115}, | |
1622 | {235, 109}, | |
1623 | {203, 127}, | |
1624 | {203, 121}, | |
1625 | {203, 115}, | |
1626 | {203, 108}, | |
1627 | {203, 102}, | |
1628 | {203, 96}, | |
1629 | {203, 92}, | |
1630 | {171, 110}, | |
1631 | {171, 104}, | |
1632 | {171, 98}, | |
1633 | {139, 116}, | |
1634 | {227, 125}, | |
1635 | {227, 119}, | |
1636 | {227, 113}, | |
1637 | {227, 107}, | |
1638 | {227, 101}, | |
1639 | {227, 96}, | |
1640 | {195, 113}, | |
1641 | {195, 106}, | |
1642 | {195, 102}, | |
1643 | {195, 95}, | |
1644 | {163, 113}, | |
1645 | {163, 106}, | |
1646 | {163, 102}, | |
1647 | {163, 95}, | |
1648 | {131, 113}, | |
1649 | {131, 106}, | |
1650 | {131, 102}, | |
1651 | {131, 95}, | |
1652 | {99, 113}, | |
1653 | {99, 106}, | |
1654 | {99, 102}, | |
1655 | {99, 95}, | |
1656 | {67, 113}, | |
1657 | {67, 106}, | |
1658 | {67, 102}, | |
1659 | {67, 95}, | |
1660 | {35, 113}, | |
1661 | {35, 106}, | |
1662 | {35, 102}, | |
1663 | {35, 95}, | |
1664 | {3, 113}, | |
1665 | {3, 106}, | |
1666 | {3, 102}, | |
1667 | {3, 95} }, /* 2.4 GHz, lowest power */ | |
1668 | { | |
1669 | {251, 127}, /* 5.x GHz, highest power */ | |
1670 | {251, 120}, | |
1671 | {251, 114}, | |
1672 | {219, 119}, | |
1673 | {219, 101}, | |
1674 | {187, 113}, | |
1675 | {187, 102}, | |
1676 | {155, 114}, | |
1677 | {155, 103}, | |
1678 | {123, 117}, | |
1679 | {123, 107}, | |
1680 | {123, 99}, | |
1681 | {123, 92}, | |
1682 | {91, 108}, | |
1683 | {59, 125}, | |
1684 | {59, 118}, | |
1685 | {59, 109}, | |
1686 | {59, 102}, | |
1687 | {59, 96}, | |
1688 | {59, 90}, | |
1689 | {27, 104}, | |
1690 | {27, 98}, | |
1691 | {27, 92}, | |
1692 | {115, 118}, | |
1693 | {115, 111}, | |
1694 | {115, 104}, | |
1695 | {83, 126}, | |
1696 | {83, 121}, | |
1697 | {83, 113}, | |
1698 | {83, 105}, | |
1699 | {83, 99}, | |
1700 | {51, 118}, | |
1701 | {51, 111}, | |
1702 | {51, 104}, | |
1703 | {51, 98}, | |
1704 | {19, 116}, | |
1705 | {19, 109}, | |
1706 | {19, 102}, | |
1707 | {19, 98}, | |
1708 | {19, 93}, | |
1709 | {171, 113}, | |
1710 | {171, 107}, | |
1711 | {171, 99}, | |
1712 | {139, 120}, | |
1713 | {139, 113}, | |
1714 | {139, 107}, | |
1715 | {139, 99}, | |
1716 | {107, 120}, | |
1717 | {107, 113}, | |
1718 | {107, 107}, | |
1719 | {107, 99}, | |
1720 | {75, 120}, | |
1721 | {75, 113}, | |
1722 | {75, 107}, | |
1723 | {75, 99}, | |
1724 | {43, 120}, | |
1725 | {43, 113}, | |
1726 | {43, 107}, | |
1727 | {43, 99}, | |
1728 | {11, 120}, | |
1729 | {11, 113}, | |
1730 | {11, 107}, | |
1731 | {11, 99}, | |
1732 | {131, 107}, | |
1733 | {131, 99}, | |
1734 | {99, 120}, | |
1735 | {99, 113}, | |
1736 | {99, 107}, | |
1737 | {99, 99}, | |
1738 | {67, 120}, | |
1739 | {67, 113}, | |
1740 | {67, 107}, | |
1741 | {67, 99}, | |
1742 | {35, 120}, | |
1743 | {35, 113}, | |
1744 | {35, 107}, | |
1745 | {35, 99}, | |
1746 | {3, 120} } /* 5.x GHz, lowest power */ | |
1747 | }; | |
1748 | ||
bb8c093b | 1749 | static inline u8 iwl3945_hw_reg_fix_power_index(int index) |
b481de9c ZY |
1750 | { |
1751 | if (index < 0) | |
1752 | return 0; | |
1753 | if (index >= IWL_MAX_GAIN_ENTRIES) | |
1754 | return IWL_MAX_GAIN_ENTRIES - 1; | |
1755 | return (u8) index; | |
1756 | } | |
1757 | ||
1758 | /* Kick off thermal recalibration check every 60 seconds */ | |
1759 | #define REG_RECALIB_PERIOD (60) | |
1760 | ||
1761 | /** | |
bb8c093b | 1762 | * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests |
b481de9c ZY |
1763 | * |
1764 | * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK) | |
1765 | * or 6 Mbit (OFDM) rates. | |
1766 | */ | |
bb8c093b | 1767 | static void iwl3945_hw_reg_set_scan_power(struct iwl3945_priv *priv, u32 scan_tbl_index, |
b481de9c | 1768 | s32 rate_index, const s8 *clip_pwrs, |
bb8c093b | 1769 | struct iwl3945_channel_info *ch_info, |
b481de9c ZY |
1770 | int band_index) |
1771 | { | |
bb8c093b | 1772 | struct iwl3945_scan_power_info *scan_power_info; |
b481de9c ZY |
1773 | s8 power; |
1774 | u8 power_index; | |
1775 | ||
1776 | scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index]; | |
1777 | ||
1778 | /* use this channel group's 6Mbit clipping/saturation pwr, | |
1779 | * but cap at regulatory scan power restriction (set during init | |
1780 | * based on eeprom channel data) for this channel. */ | |
14577f23 | 1781 | power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]); |
b481de9c ZY |
1782 | |
1783 | /* further limit to user's max power preference. | |
1784 | * FIXME: Other spectrum management power limitations do not | |
1785 | * seem to apply?? */ | |
1786 | power = min(power, priv->user_txpower_limit); | |
1787 | scan_power_info->requested_power = power; | |
1788 | ||
1789 | /* find difference between new scan *power* and current "normal" | |
1790 | * Tx *power* for 6Mb. Use this difference (x2) to adjust the | |
1791 | * current "normal" temperature-compensated Tx power *index* for | |
1792 | * this rate (1Mb or 6Mb) to yield new temp-compensated scan power | |
1793 | * *index*. */ | |
1794 | power_index = ch_info->power_info[rate_index].power_table_index | |
1795 | - (power - ch_info->power_info | |
14577f23 | 1796 | [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2; |
b481de9c ZY |
1797 | |
1798 | /* store reference index that we use when adjusting *all* scan | |
1799 | * powers. So we can accommodate user (all channel) or spectrum | |
1800 | * management (single channel) power changes "between" temperature | |
1801 | * feedback compensation procedures. | |
1802 | * don't force fit this reference index into gain table; it may be a | |
1803 | * negative number. This will help avoid errors when we're at | |
1804 | * the lower bounds (highest gains, for warmest temperatures) | |
1805 | * of the table. */ | |
1806 | ||
1807 | /* don't exceed table bounds for "real" setting */ | |
bb8c093b | 1808 | power_index = iwl3945_hw_reg_fix_power_index(power_index); |
b481de9c ZY |
1809 | |
1810 | scan_power_info->power_table_index = power_index; | |
1811 | scan_power_info->tpc.tx_gain = | |
1812 | power_gain_table[band_index][power_index].tx_gain; | |
1813 | scan_power_info->tpc.dsp_atten = | |
1814 | power_gain_table[band_index][power_index].dsp_atten; | |
1815 | } | |
1816 | ||
1817 | /** | |
bb8c093b | 1818 | * iwl3945_hw_reg_send_txpower - fill in Tx Power command with gain settings |
b481de9c ZY |
1819 | * |
1820 | * Configures power settings for all rates for the current channel, | |
1821 | * using values from channel info struct, and send to NIC | |
1822 | */ | |
bb8c093b | 1823 | int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv) |
b481de9c | 1824 | { |
14577f23 | 1825 | int rate_idx, i; |
bb8c093b CH |
1826 | const struct iwl3945_channel_info *ch_info = NULL; |
1827 | struct iwl3945_txpowertable_cmd txpower = { | |
b481de9c ZY |
1828 | .channel = priv->active_rxon.channel, |
1829 | }; | |
1830 | ||
8318d78a | 1831 | txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1; |
bb8c093b | 1832 | ch_info = iwl3945_get_channel_info(priv, |
8318d78a | 1833 | priv->band, |
b481de9c ZY |
1834 | le16_to_cpu(priv->active_rxon.channel)); |
1835 | if (!ch_info) { | |
1836 | IWL_ERROR | |
1837 | ("Failed to get channel info for channel %d [%d]\n", | |
8318d78a | 1838 | le16_to_cpu(priv->active_rxon.channel), priv->band); |
b481de9c ZY |
1839 | return -EINVAL; |
1840 | } | |
1841 | ||
1842 | if (!is_channel_valid(ch_info)) { | |
1843 | IWL_DEBUG_POWER("Not calling TX_PWR_TABLE_CMD on " | |
1844 | "non-Tx channel.\n"); | |
1845 | return 0; | |
1846 | } | |
1847 | ||
1848 | /* fill cmd with power settings for all rates for current channel */ | |
14577f23 MA |
1849 | /* Fill OFDM rate */ |
1850 | for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0; | |
1851 | rate_idx <= IWL_LAST_OFDM_RATE; rate_idx++, i++) { | |
1852 | ||
1853 | txpower.power[i].tpc = ch_info->power_info[i].tpc; | |
bb8c093b | 1854 | txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; |
b481de9c ZY |
1855 | |
1856 | IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", | |
1857 | le16_to_cpu(txpower.channel), | |
1858 | txpower.band, | |
14577f23 MA |
1859 | txpower.power[i].tpc.tx_gain, |
1860 | txpower.power[i].tpc.dsp_atten, | |
1861 | txpower.power[i].rate); | |
1862 | } | |
1863 | /* Fill CCK rates */ | |
1864 | for (rate_idx = IWL_FIRST_CCK_RATE; | |
1865 | rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) { | |
1866 | txpower.power[i].tpc = ch_info->power_info[i].tpc; | |
bb8c093b | 1867 | txpower.power[i].rate = iwl3945_rates[rate_idx].plcp; |
14577f23 MA |
1868 | |
1869 | IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", | |
1870 | le16_to_cpu(txpower.channel), | |
1871 | txpower.band, | |
1872 | txpower.power[i].tpc.tx_gain, | |
1873 | txpower.power[i].tpc.dsp_atten, | |
1874 | txpower.power[i].rate); | |
b481de9c ZY |
1875 | } |
1876 | ||
bb8c093b CH |
1877 | return iwl3945_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, |
1878 | sizeof(struct iwl3945_txpowertable_cmd), &txpower); | |
b481de9c ZY |
1879 | |
1880 | } | |
1881 | ||
1882 | /** | |
bb8c093b | 1883 | * iwl3945_hw_reg_set_new_power - Configures power tables at new levels |
b481de9c ZY |
1884 | * @ch_info: Channel to update. Uses power_info.requested_power. |
1885 | * | |
1886 | * Replace requested_power and base_power_index ch_info fields for | |
1887 | * one channel. | |
1888 | * | |
1889 | * Called if user or spectrum management changes power preferences. | |
1890 | * Takes into account h/w and modulation limitations (clip power). | |
1891 | * | |
1892 | * This does *not* send anything to NIC, just sets up ch_info for one channel. | |
1893 | * | |
1894 | * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to | |
1895 | * properly fill out the scan powers, and actual h/w gain settings, | |
1896 | * and send changes to NIC | |
1897 | */ | |
bb8c093b CH |
1898 | static int iwl3945_hw_reg_set_new_power(struct iwl3945_priv *priv, |
1899 | struct iwl3945_channel_info *ch_info) | |
b481de9c | 1900 | { |
bb8c093b | 1901 | struct iwl3945_channel_power_info *power_info; |
b481de9c ZY |
1902 | int power_changed = 0; |
1903 | int i; | |
1904 | const s8 *clip_pwrs; | |
1905 | int power; | |
1906 | ||
1907 | /* Get this chnlgrp's rate-to-max/clip-powers table */ | |
1908 | clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; | |
1909 | ||
1910 | /* Get this channel's rate-to-current-power settings table */ | |
1911 | power_info = ch_info->power_info; | |
1912 | ||
1913 | /* update OFDM Txpower settings */ | |
14577f23 | 1914 | for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; |
b481de9c ZY |
1915 | i++, ++power_info) { |
1916 | int delta_idx; | |
1917 | ||
1918 | /* limit new power to be no more than h/w capability */ | |
1919 | power = min(ch_info->curr_txpow, clip_pwrs[i]); | |
1920 | if (power == power_info->requested_power) | |
1921 | continue; | |
1922 | ||
1923 | /* find difference between old and new requested powers, | |
1924 | * update base (non-temp-compensated) power index */ | |
1925 | delta_idx = (power - power_info->requested_power) * 2; | |
1926 | power_info->base_power_index -= delta_idx; | |
1927 | ||
1928 | /* save new requested power value */ | |
1929 | power_info->requested_power = power; | |
1930 | ||
1931 | power_changed = 1; | |
1932 | } | |
1933 | ||
1934 | /* update CCK Txpower settings, based on OFDM 12M setting ... | |
1935 | * ... all CCK power settings for a given channel are the *same*. */ | |
1936 | if (power_changed) { | |
1937 | power = | |
14577f23 | 1938 | ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. |
b481de9c ZY |
1939 | requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF; |
1940 | ||
bb8c093b | 1941 | /* do all CCK rates' iwl3945_channel_power_info structures */ |
14577f23 | 1942 | for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) { |
b481de9c ZY |
1943 | power_info->requested_power = power; |
1944 | power_info->base_power_index = | |
14577f23 | 1945 | ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]. |
b481de9c ZY |
1946 | base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF; |
1947 | ++power_info; | |
1948 | } | |
1949 | } | |
1950 | ||
1951 | return 0; | |
1952 | } | |
1953 | ||
1954 | /** | |
bb8c093b | 1955 | * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel |
b481de9c ZY |
1956 | * |
1957 | * NOTE: Returned power limit may be less (but not more) than requested, | |
1958 | * based strictly on regulatory (eeprom and spectrum mgt) limitations | |
1959 | * (no consideration for h/w clipping limitations). | |
1960 | */ | |
bb8c093b | 1961 | static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl3945_channel_info *ch_info) |
b481de9c ZY |
1962 | { |
1963 | s8 max_power; | |
1964 | ||
1965 | #if 0 | |
1966 | /* if we're using TGd limits, use lower of TGd or EEPROM */ | |
1967 | if (ch_info->tgd_data.max_power != 0) | |
1968 | max_power = min(ch_info->tgd_data.max_power, | |
1969 | ch_info->eeprom.max_power_avg); | |
1970 | ||
1971 | /* else just use EEPROM limits */ | |
1972 | else | |
1973 | #endif | |
1974 | max_power = ch_info->eeprom.max_power_avg; | |
1975 | ||
1976 | return min(max_power, ch_info->max_power_avg); | |
1977 | } | |
1978 | ||
1979 | /** | |
bb8c093b | 1980 | * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature |
b481de9c ZY |
1981 | * |
1982 | * Compensate txpower settings of *all* channels for temperature. | |
1983 | * This only accounts for the difference between current temperature | |
1984 | * and the factory calibration temperatures, and bases the new settings | |
1985 | * on the channel's base_power_index. | |
1986 | * | |
1987 | * If RxOn is "associated", this sends the new Txpower to NIC! | |
1988 | */ | |
bb8c093b | 1989 | static int iwl3945_hw_reg_comp_txpower_temp(struct iwl3945_priv *priv) |
b481de9c | 1990 | { |
bb8c093b | 1991 | struct iwl3945_channel_info *ch_info = NULL; |
b481de9c ZY |
1992 | int delta_index; |
1993 | const s8 *clip_pwrs; /* array of h/w max power levels for each rate */ | |
1994 | u8 a_band; | |
1995 | u8 rate_index; | |
1996 | u8 scan_tbl_index; | |
1997 | u8 i; | |
1998 | int ref_temp; | |
1999 | int temperature = priv->temperature; | |
2000 | ||
2001 | /* set up new Tx power info for each and every channel, 2.4 and 5.x */ | |
2002 | for (i = 0; i < priv->channel_count; i++) { | |
2003 | ch_info = &priv->channel_info[i]; | |
2004 | a_band = is_channel_a_band(ch_info); | |
2005 | ||
2006 | /* Get this chnlgrp's factory calibration temperature */ | |
2007 | ref_temp = (s16)priv->eeprom.groups[ch_info->group_index]. | |
2008 | temperature; | |
2009 | ||
2010 | /* get power index adjustment based on curr and factory | |
2011 | * temps */ | |
bb8c093b | 2012 | delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, |
b481de9c ZY |
2013 | ref_temp); |
2014 | ||
2015 | /* set tx power value for all rates, OFDM and CCK */ | |
2016 | for (rate_index = 0; rate_index < IWL_RATE_COUNT; | |
2017 | rate_index++) { | |
2018 | int power_idx = | |
2019 | ch_info->power_info[rate_index].base_power_index; | |
2020 | ||
2021 | /* temperature compensate */ | |
2022 | power_idx += delta_index; | |
2023 | ||
2024 | /* stay within table range */ | |
bb8c093b | 2025 | power_idx = iwl3945_hw_reg_fix_power_index(power_idx); |
b481de9c ZY |
2026 | ch_info->power_info[rate_index]. |
2027 | power_table_index = (u8) power_idx; | |
2028 | ch_info->power_info[rate_index].tpc = | |
2029 | power_gain_table[a_band][power_idx]; | |
2030 | } | |
2031 | ||
2032 | /* Get this chnlgrp's rate-to-max/clip-powers table */ | |
2033 | clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; | |
2034 | ||
2035 | /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ | |
2036 | for (scan_tbl_index = 0; | |
2037 | scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { | |
2038 | s32 actual_index = (scan_tbl_index == 0) ? | |
14577f23 | 2039 | IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; |
bb8c093b | 2040 | iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, |
b481de9c ZY |
2041 | actual_index, clip_pwrs, |
2042 | ch_info, a_band); | |
2043 | } | |
2044 | } | |
2045 | ||
2046 | /* send Txpower command for current channel to ucode */ | |
bb8c093b | 2047 | return iwl3945_hw_reg_send_txpower(priv); |
b481de9c ZY |
2048 | } |
2049 | ||
bb8c093b | 2050 | int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power) |
b481de9c | 2051 | { |
bb8c093b | 2052 | struct iwl3945_channel_info *ch_info; |
b481de9c ZY |
2053 | s8 max_power; |
2054 | u8 a_band; | |
2055 | u8 i; | |
2056 | ||
2057 | if (priv->user_txpower_limit == power) { | |
2058 | IWL_DEBUG_POWER("Requested Tx power same as current " | |
2059 | "limit: %ddBm.\n", power); | |
2060 | return 0; | |
2061 | } | |
2062 | ||
2063 | IWL_DEBUG_POWER("Setting upper limit clamp to %ddBm.\n", power); | |
2064 | priv->user_txpower_limit = power; | |
2065 | ||
2066 | /* set up new Tx powers for each and every channel, 2.4 and 5.x */ | |
2067 | ||
2068 | for (i = 0; i < priv->channel_count; i++) { | |
2069 | ch_info = &priv->channel_info[i]; | |
2070 | a_band = is_channel_a_band(ch_info); | |
2071 | ||
2072 | /* find minimum power of all user and regulatory constraints | |
2073 | * (does not consider h/w clipping limitations) */ | |
bb8c093b | 2074 | max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info); |
b481de9c ZY |
2075 | max_power = min(power, max_power); |
2076 | if (max_power != ch_info->curr_txpow) { | |
2077 | ch_info->curr_txpow = max_power; | |
2078 | ||
2079 | /* this considers the h/w clipping limitations */ | |
bb8c093b | 2080 | iwl3945_hw_reg_set_new_power(priv, ch_info); |
b481de9c ZY |
2081 | } |
2082 | } | |
2083 | ||
2084 | /* update txpower settings for all channels, | |
2085 | * send to NIC if associated. */ | |
2086 | is_temp_calib_needed(priv); | |
bb8c093b | 2087 | iwl3945_hw_reg_comp_txpower_temp(priv); |
b481de9c ZY |
2088 | |
2089 | return 0; | |
2090 | } | |
2091 | ||
2092 | /* will add 3945 channel switch cmd handling later */ | |
bb8c093b | 2093 | int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel) |
b481de9c ZY |
2094 | { |
2095 | return 0; | |
2096 | } | |
2097 | ||
2098 | /** | |
2099 | * iwl3945_reg_txpower_periodic - called when time to check our temperature. | |
2100 | * | |
2101 | * -- reset periodic timer | |
2102 | * -- see if temp has changed enough to warrant re-calibration ... if so: | |
2103 | * -- correct coeffs for temp (can reset temp timer) | |
2104 | * -- save this temp as "last", | |
2105 | * -- send new set of gain settings to NIC | |
2106 | * NOTE: This should continue working, even when we're not associated, | |
2107 | * so we can keep our internal table of scan powers current. */ | |
bb8c093b | 2108 | void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv) |
b481de9c ZY |
2109 | { |
2110 | /* This will kick in the "brute force" | |
bb8c093b | 2111 | * iwl3945_hw_reg_comp_txpower_temp() below */ |
b481de9c ZY |
2112 | if (!is_temp_calib_needed(priv)) |
2113 | goto reschedule; | |
2114 | ||
2115 | /* Set up a new set of temp-adjusted TxPowers, send to NIC. | |
2116 | * This is based *only* on current temperature, | |
2117 | * ignoring any previous power measurements */ | |
bb8c093b | 2118 | iwl3945_hw_reg_comp_txpower_temp(priv); |
b481de9c ZY |
2119 | |
2120 | reschedule: | |
2121 | queue_delayed_work(priv->workqueue, | |
2122 | &priv->thermal_periodic, REG_RECALIB_PERIOD * HZ); | |
2123 | } | |
2124 | ||
416e1438 | 2125 | static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work) |
b481de9c | 2126 | { |
bb8c093b | 2127 | struct iwl3945_priv *priv = container_of(work, struct iwl3945_priv, |
b481de9c ZY |
2128 | thermal_periodic.work); |
2129 | ||
2130 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2131 | return; | |
2132 | ||
2133 | mutex_lock(&priv->mutex); | |
2134 | iwl3945_reg_txpower_periodic(priv); | |
2135 | mutex_unlock(&priv->mutex); | |
2136 | } | |
2137 | ||
2138 | /** | |
bb8c093b | 2139 | * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4) |
b481de9c ZY |
2140 | * for the channel. |
2141 | * | |
2142 | * This function is used when initializing channel-info structs. | |
2143 | * | |
2144 | * NOTE: These channel groups do *NOT* match the bands above! | |
2145 | * These channel groups are based on factory-tested channels; | |
2146 | * on A-band, EEPROM's "group frequency" entries represent the top | |
2147 | * channel in each group 1-4. Group 5 All B/G channels are in group 0. | |
2148 | */ | |
bb8c093b CH |
2149 | static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl3945_priv *priv, |
2150 | const struct iwl3945_channel_info *ch_info) | |
b481de9c | 2151 | { |
bb8c093b | 2152 | struct iwl3945_eeprom_txpower_group *ch_grp = &priv->eeprom.groups[0]; |
b481de9c ZY |
2153 | u8 group; |
2154 | u16 group_index = 0; /* based on factory calib frequencies */ | |
2155 | u8 grp_channel; | |
2156 | ||
2157 | /* Find the group index for the channel ... don't use index 1(?) */ | |
2158 | if (is_channel_a_band(ch_info)) { | |
2159 | for (group = 1; group < 5; group++) { | |
2160 | grp_channel = ch_grp[group].group_channel; | |
2161 | if (ch_info->channel <= grp_channel) { | |
2162 | group_index = group; | |
2163 | break; | |
2164 | } | |
2165 | } | |
2166 | /* group 4 has a few channels *above* its factory cal freq */ | |
2167 | if (group == 5) | |
2168 | group_index = 4; | |
2169 | } else | |
2170 | group_index = 0; /* 2.4 GHz, group 0 */ | |
2171 | ||
2172 | IWL_DEBUG_POWER("Chnl %d mapped to grp %d\n", ch_info->channel, | |
2173 | group_index); | |
2174 | return group_index; | |
2175 | } | |
2176 | ||
2177 | /** | |
bb8c093b | 2178 | * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index |
b481de9c ZY |
2179 | * |
2180 | * Interpolate to get nominal (i.e. at factory calibration temperature) index | |
2181 | * into radio/DSP gain settings table for requested power. | |
2182 | */ | |
bb8c093b | 2183 | static int iwl3945_hw_reg_get_matched_power_index(struct iwl3945_priv *priv, |
b481de9c ZY |
2184 | s8 requested_power, |
2185 | s32 setting_index, s32 *new_index) | |
2186 | { | |
bb8c093b | 2187 | const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL; |
b481de9c ZY |
2188 | s32 index0, index1; |
2189 | s32 power = 2 * requested_power; | |
2190 | s32 i; | |
bb8c093b | 2191 | const struct iwl3945_eeprom_txpower_sample *samples; |
b481de9c ZY |
2192 | s32 gains0, gains1; |
2193 | s32 res; | |
2194 | s32 denominator; | |
2195 | ||
2196 | chnl_grp = &priv->eeprom.groups[setting_index]; | |
2197 | samples = chnl_grp->samples; | |
2198 | for (i = 0; i < 5; i++) { | |
2199 | if (power == samples[i].power) { | |
2200 | *new_index = samples[i].gain_index; | |
2201 | return 0; | |
2202 | } | |
2203 | } | |
2204 | ||
2205 | if (power > samples[1].power) { | |
2206 | index0 = 0; | |
2207 | index1 = 1; | |
2208 | } else if (power > samples[2].power) { | |
2209 | index0 = 1; | |
2210 | index1 = 2; | |
2211 | } else if (power > samples[3].power) { | |
2212 | index0 = 2; | |
2213 | index1 = 3; | |
2214 | } else { | |
2215 | index0 = 3; | |
2216 | index1 = 4; | |
2217 | } | |
2218 | ||
2219 | denominator = (s32) samples[index1].power - (s32) samples[index0].power; | |
2220 | if (denominator == 0) | |
2221 | return -EINVAL; | |
2222 | gains0 = (s32) samples[index0].gain_index * (1 << 19); | |
2223 | gains1 = (s32) samples[index1].gain_index * (1 << 19); | |
2224 | res = gains0 + (gains1 - gains0) * | |
2225 | ((s32) power - (s32) samples[index0].power) / denominator + | |
2226 | (1 << 18); | |
2227 | *new_index = res >> 19; | |
2228 | return 0; | |
2229 | } | |
2230 | ||
bb8c093b | 2231 | static void iwl3945_hw_reg_init_channel_groups(struct iwl3945_priv *priv) |
b481de9c ZY |
2232 | { |
2233 | u32 i; | |
2234 | s32 rate_index; | |
bb8c093b | 2235 | const struct iwl3945_eeprom_txpower_group *group; |
b481de9c ZY |
2236 | |
2237 | IWL_DEBUG_POWER("Initializing factory calib info from EEPROM\n"); | |
2238 | ||
2239 | for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) { | |
2240 | s8 *clip_pwrs; /* table of power levels for each rate */ | |
2241 | s8 satur_pwr; /* saturation power for each chnl group */ | |
2242 | group = &priv->eeprom.groups[i]; | |
2243 | ||
2244 | /* sanity check on factory saturation power value */ | |
2245 | if (group->saturation_power < 40) { | |
2246 | IWL_WARNING("Error: saturation power is %d, " | |
2247 | "less than minimum expected 40\n", | |
2248 | group->saturation_power); | |
2249 | return; | |
2250 | } | |
2251 | ||
2252 | /* | |
2253 | * Derive requested power levels for each rate, based on | |
2254 | * hardware capabilities (saturation power for band). | |
2255 | * Basic value is 3dB down from saturation, with further | |
2256 | * power reductions for highest 3 data rates. These | |
2257 | * backoffs provide headroom for high rate modulation | |
2258 | * power peaks, without too much distortion (clipping). | |
2259 | */ | |
2260 | /* we'll fill in this array with h/w max power levels */ | |
2261 | clip_pwrs = (s8 *) priv->clip_groups[i].clip_powers; | |
2262 | ||
2263 | /* divide factory saturation power by 2 to find -3dB level */ | |
2264 | satur_pwr = (s8) (group->saturation_power >> 1); | |
2265 | ||
2266 | /* fill in channel group's nominal powers for each rate */ | |
2267 | for (rate_index = 0; | |
2268 | rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) { | |
2269 | switch (rate_index) { | |
14577f23 | 2270 | case IWL_RATE_36M_INDEX_TABLE: |
b481de9c ZY |
2271 | if (i == 0) /* B/G */ |
2272 | *clip_pwrs = satur_pwr; | |
2273 | else /* A */ | |
2274 | *clip_pwrs = satur_pwr - 5; | |
2275 | break; | |
14577f23 | 2276 | case IWL_RATE_48M_INDEX_TABLE: |
b481de9c ZY |
2277 | if (i == 0) |
2278 | *clip_pwrs = satur_pwr - 7; | |
2279 | else | |
2280 | *clip_pwrs = satur_pwr - 10; | |
2281 | break; | |
14577f23 | 2282 | case IWL_RATE_54M_INDEX_TABLE: |
b481de9c ZY |
2283 | if (i == 0) |
2284 | *clip_pwrs = satur_pwr - 9; | |
2285 | else | |
2286 | *clip_pwrs = satur_pwr - 12; | |
2287 | break; | |
2288 | default: | |
2289 | *clip_pwrs = satur_pwr; | |
2290 | break; | |
2291 | } | |
2292 | } | |
2293 | } | |
2294 | } | |
2295 | ||
2296 | /** | |
2297 | * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM | |
2298 | * | |
2299 | * Second pass (during init) to set up priv->channel_info | |
2300 | * | |
2301 | * Set up Tx-power settings in our channel info database for each VALID | |
2302 | * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values | |
2303 | * and current temperature. | |
2304 | * | |
2305 | * Since this is based on current temperature (at init time), these values may | |
2306 | * not be valid for very long, but it gives us a starting/default point, | |
2307 | * and allows us to active (i.e. using Tx) scan. | |
2308 | * | |
2309 | * This does *not* write values to NIC, just sets up our internal table. | |
2310 | */ | |
bb8c093b | 2311 | int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv) |
b481de9c | 2312 | { |
bb8c093b CH |
2313 | struct iwl3945_channel_info *ch_info = NULL; |
2314 | struct iwl3945_channel_power_info *pwr_info; | |
b481de9c ZY |
2315 | int delta_index; |
2316 | u8 rate_index; | |
2317 | u8 scan_tbl_index; | |
2318 | const s8 *clip_pwrs; /* array of power levels for each rate */ | |
2319 | u8 gain, dsp_atten; | |
2320 | s8 power; | |
2321 | u8 pwr_index, base_pwr_index, a_band; | |
2322 | u8 i; | |
2323 | int temperature; | |
2324 | ||
2325 | /* save temperature reference, | |
2326 | * so we can determine next time to calibrate */ | |
bb8c093b | 2327 | temperature = iwl3945_hw_reg_txpower_get_temperature(priv); |
b481de9c ZY |
2328 | priv->last_temperature = temperature; |
2329 | ||
bb8c093b | 2330 | iwl3945_hw_reg_init_channel_groups(priv); |
b481de9c ZY |
2331 | |
2332 | /* initialize Tx power info for each and every channel, 2.4 and 5.x */ | |
2333 | for (i = 0, ch_info = priv->channel_info; i < priv->channel_count; | |
2334 | i++, ch_info++) { | |
2335 | a_band = is_channel_a_band(ch_info); | |
2336 | if (!is_channel_valid(ch_info)) | |
2337 | continue; | |
2338 | ||
2339 | /* find this channel's channel group (*not* "band") index */ | |
2340 | ch_info->group_index = | |
bb8c093b | 2341 | iwl3945_hw_reg_get_ch_grp_index(priv, ch_info); |
b481de9c ZY |
2342 | |
2343 | /* Get this chnlgrp's rate->max/clip-powers table */ | |
2344 | clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers; | |
2345 | ||
2346 | /* calculate power index *adjustment* value according to | |
2347 | * diff between current temperature and factory temperature */ | |
bb8c093b | 2348 | delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature, |
b481de9c ZY |
2349 | priv->eeprom.groups[ch_info->group_index]. |
2350 | temperature); | |
2351 | ||
2352 | IWL_DEBUG_POWER("Delta index for channel %d: %d [%d]\n", | |
2353 | ch_info->channel, delta_index, temperature + | |
2354 | IWL_TEMP_CONVERT); | |
2355 | ||
2356 | /* set tx power value for all OFDM rates */ | |
2357 | for (rate_index = 0; rate_index < IWL_OFDM_RATES; | |
2358 | rate_index++) { | |
2359 | s32 power_idx; | |
2360 | int rc; | |
2361 | ||
2362 | /* use channel group's clip-power table, | |
2363 | * but don't exceed channel's max power */ | |
2364 | s8 pwr = min(ch_info->max_power_avg, | |
2365 | clip_pwrs[rate_index]); | |
2366 | ||
2367 | pwr_info = &ch_info->power_info[rate_index]; | |
2368 | ||
2369 | /* get base (i.e. at factory-measured temperature) | |
2370 | * power table index for this rate's power */ | |
bb8c093b | 2371 | rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr, |
b481de9c ZY |
2372 | ch_info->group_index, |
2373 | &power_idx); | |
2374 | if (rc) { | |
2375 | IWL_ERROR("Invalid power index\n"); | |
2376 | return rc; | |
2377 | } | |
2378 | pwr_info->base_power_index = (u8) power_idx; | |
2379 | ||
2380 | /* temperature compensate */ | |
2381 | power_idx += delta_index; | |
2382 | ||
2383 | /* stay within range of gain table */ | |
bb8c093b | 2384 | power_idx = iwl3945_hw_reg_fix_power_index(power_idx); |
b481de9c | 2385 | |
bb8c093b | 2386 | /* fill 1 OFDM rate's iwl3945_channel_power_info struct */ |
b481de9c ZY |
2387 | pwr_info->requested_power = pwr; |
2388 | pwr_info->power_table_index = (u8) power_idx; | |
2389 | pwr_info->tpc.tx_gain = | |
2390 | power_gain_table[a_band][power_idx].tx_gain; | |
2391 | pwr_info->tpc.dsp_atten = | |
2392 | power_gain_table[a_band][power_idx].dsp_atten; | |
2393 | } | |
2394 | ||
2395 | /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/ | |
14577f23 | 2396 | pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE]; |
b481de9c ZY |
2397 | power = pwr_info->requested_power + |
2398 | IWL_CCK_FROM_OFDM_POWER_DIFF; | |
2399 | pwr_index = pwr_info->power_table_index + | |
2400 | IWL_CCK_FROM_OFDM_INDEX_DIFF; | |
2401 | base_pwr_index = pwr_info->base_power_index + | |
2402 | IWL_CCK_FROM_OFDM_INDEX_DIFF; | |
2403 | ||
2404 | /* stay within table range */ | |
bb8c093b | 2405 | pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index); |
b481de9c ZY |
2406 | gain = power_gain_table[a_band][pwr_index].tx_gain; |
2407 | dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten; | |
2408 | ||
bb8c093b | 2409 | /* fill each CCK rate's iwl3945_channel_power_info structure |
b481de9c ZY |
2410 | * NOTE: All CCK-rate Txpwrs are the same for a given chnl! |
2411 | * NOTE: CCK rates start at end of OFDM rates! */ | |
14577f23 MA |
2412 | for (rate_index = 0; |
2413 | rate_index < IWL_CCK_RATES; rate_index++) { | |
2414 | pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES]; | |
b481de9c ZY |
2415 | pwr_info->requested_power = power; |
2416 | pwr_info->power_table_index = pwr_index; | |
2417 | pwr_info->base_power_index = base_pwr_index; | |
2418 | pwr_info->tpc.tx_gain = gain; | |
2419 | pwr_info->tpc.dsp_atten = dsp_atten; | |
2420 | } | |
2421 | ||
2422 | /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ | |
2423 | for (scan_tbl_index = 0; | |
2424 | scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) { | |
2425 | s32 actual_index = (scan_tbl_index == 0) ? | |
14577f23 | 2426 | IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE; |
bb8c093b | 2427 | iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index, |
b481de9c ZY |
2428 | actual_index, clip_pwrs, ch_info, a_band); |
2429 | } | |
2430 | } | |
2431 | ||
2432 | return 0; | |
2433 | } | |
2434 | ||
bb8c093b | 2435 | int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv) |
b481de9c ZY |
2436 | { |
2437 | int rc; | |
2438 | unsigned long flags; | |
2439 | ||
2440 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2441 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
2442 | if (rc) { |
2443 | spin_unlock_irqrestore(&priv->lock, flags); | |
2444 | return rc; | |
2445 | } | |
2446 | ||
bb8c093b CH |
2447 | iwl3945_write_direct32(priv, FH_RCSR_CONFIG(0), 0); |
2448 | rc = iwl3945_poll_direct_bit(priv, FH_RSSR_STATUS, (1 << 24), 1000); | |
b481de9c ZY |
2449 | if (rc < 0) |
2450 | IWL_ERROR("Can't stop Rx DMA.\n"); | |
2451 | ||
bb8c093b | 2452 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
2453 | spin_unlock_irqrestore(&priv->lock, flags); |
2454 | ||
2455 | return 0; | |
2456 | } | |
2457 | ||
bb8c093b | 2458 | int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq) |
b481de9c ZY |
2459 | { |
2460 | int rc; | |
2461 | unsigned long flags; | |
2462 | int txq_id = txq->q.id; | |
2463 | ||
bb8c093b | 2464 | struct iwl3945_shared *shared_data = priv->hw_setting.shared_virt; |
b481de9c ZY |
2465 | |
2466 | shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr); | |
2467 | ||
2468 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 2469 | rc = iwl3945_grab_nic_access(priv); |
b481de9c ZY |
2470 | if (rc) { |
2471 | spin_unlock_irqrestore(&priv->lock, flags); | |
2472 | return rc; | |
2473 | } | |
bb8c093b CH |
2474 | iwl3945_write_direct32(priv, FH_CBCC_CTRL(txq_id), 0); |
2475 | iwl3945_write_direct32(priv, FH_CBCC_BASE(txq_id), 0); | |
b481de9c | 2476 | |
bb8c093b | 2477 | iwl3945_write_direct32(priv, FH_TCSR_CONFIG(txq_id), |
b481de9c ZY |
2478 | ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | |
2479 | ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | | |
2480 | ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | | |
2481 | ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | | |
2482 | ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); | |
bb8c093b | 2483 | iwl3945_release_nic_access(priv); |
b481de9c ZY |
2484 | |
2485 | /* fake read to flush all prev. writes */ | |
bb8c093b | 2486 | iwl3945_read32(priv, FH_TSSR_CBB_BASE); |
b481de9c ZY |
2487 | spin_unlock_irqrestore(&priv->lock, flags); |
2488 | ||
2489 | return 0; | |
2490 | } | |
2491 | ||
bb8c093b | 2492 | int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv) |
b481de9c | 2493 | { |
bb8c093b | 2494 | struct iwl3945_shared *shared_data = priv->hw_setting.shared_virt; |
b481de9c ZY |
2495 | |
2496 | return le32_to_cpu(shared_data->rx_read_ptr[0]); | |
2497 | } | |
2498 | ||
2499 | /** | |
2500 | * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table | |
2501 | */ | |
bb8c093b | 2502 | int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv) |
b481de9c | 2503 | { |
14577f23 | 2504 | int rc, i, index, prev_index; |
bb8c093b | 2505 | struct iwl3945_rate_scaling_cmd rate_cmd = { |
b481de9c ZY |
2506 | .reserved = {0, 0, 0}, |
2507 | }; | |
bb8c093b | 2508 | struct iwl3945_rate_scaling_info *table = rate_cmd.table; |
b481de9c | 2509 | |
bb8c093b CH |
2510 | for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) { |
2511 | index = iwl3945_rates[i].table_rs_index; | |
14577f23 MA |
2512 | |
2513 | table[index].rate_n_flags = | |
bb8c093b | 2514 | iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0); |
14577f23 | 2515 | table[index].try_cnt = priv->retry_rate; |
bb8c093b CH |
2516 | prev_index = iwl3945_get_prev_ieee_rate(i); |
2517 | table[index].next_rate_index = iwl3945_rates[prev_index].table_rs_index; | |
b481de9c ZY |
2518 | } |
2519 | ||
8318d78a JB |
2520 | switch (priv->band) { |
2521 | case IEEE80211_BAND_5GHZ: | |
b481de9c ZY |
2522 | IWL_DEBUG_RATE("Select A mode rate scale\n"); |
2523 | /* If one of the following CCK rates is used, | |
2524 | * have it fall back to the 6M OFDM rate */ | |
14577f23 | 2525 | for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) |
bb8c093b | 2526 | table[i].next_rate_index = iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; |
b481de9c ZY |
2527 | |
2528 | /* Don't fall back to CCK rates */ | |
14577f23 | 2529 | table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = IWL_RATE_9M_INDEX_TABLE; |
b481de9c ZY |
2530 | |
2531 | /* Don't drop out of OFDM rates */ | |
14577f23 | 2532 | table[IWL_RATE_6M_INDEX_TABLE].next_rate_index = |
bb8c093b | 2533 | iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index; |
b481de9c ZY |
2534 | break; |
2535 | ||
8318d78a JB |
2536 | case IEEE80211_BAND_2GHZ: |
2537 | IWL_DEBUG_RATE("Select B/G mode rate scale\n"); | |
b481de9c ZY |
2538 | /* If an OFDM rate is used, have it fall back to the |
2539 | * 1M CCK rates */ | |
14577f23 | 2540 | for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++) |
bb8c093b | 2541 | table[i].next_rate_index = iwl3945_rates[IWL_FIRST_CCK_RATE].table_rs_index; |
b481de9c ZY |
2542 | |
2543 | /* CCK shouldn't fall back to OFDM... */ | |
14577f23 | 2544 | table[IWL_RATE_11M_INDEX_TABLE].next_rate_index = IWL_RATE_5M_INDEX_TABLE; |
b481de9c ZY |
2545 | break; |
2546 | ||
2547 | default: | |
8318d78a | 2548 | WARN_ON(1); |
b481de9c ZY |
2549 | break; |
2550 | } | |
2551 | ||
2552 | /* Update the rate scaling for control frame Tx */ | |
2553 | rate_cmd.table_id = 0; | |
bb8c093b | 2554 | rc = iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd), |
b481de9c ZY |
2555 | &rate_cmd); |
2556 | if (rc) | |
2557 | return rc; | |
2558 | ||
2559 | /* Update the rate scaling for data frame Tx */ | |
2560 | rate_cmd.table_id = 1; | |
bb8c093b | 2561 | return iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd), |
b481de9c ZY |
2562 | &rate_cmd); |
2563 | } | |
2564 | ||
796083cb | 2565 | /* Called when initializing driver */ |
bb8c093b | 2566 | int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv) |
b481de9c ZY |
2567 | { |
2568 | memset((void *)&priv->hw_setting, 0, | |
bb8c093b | 2569 | sizeof(struct iwl3945_driver_hw_info)); |
b481de9c ZY |
2570 | |
2571 | priv->hw_setting.shared_virt = | |
2572 | pci_alloc_consistent(priv->pci_dev, | |
bb8c093b | 2573 | sizeof(struct iwl3945_shared), |
b481de9c ZY |
2574 | &priv->hw_setting.shared_phys); |
2575 | ||
2576 | if (!priv->hw_setting.shared_virt) { | |
2577 | IWL_ERROR("failed to allocate pci memory\n"); | |
2578 | mutex_unlock(&priv->mutex); | |
2579 | return -ENOMEM; | |
2580 | } | |
2581 | ||
9ee1ba47 RR |
2582 | priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE; |
2583 | priv->hw_setting.max_pkt_size = 2342; | |
bb8c093b | 2584 | priv->hw_setting.tx_cmd_len = sizeof(struct iwl3945_tx_cmd); |
b481de9c ZY |
2585 | priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE; |
2586 | priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
b481de9c ZY |
2587 | priv->hw_setting.max_stations = IWL3945_STATION_COUNT; |
2588 | priv->hw_setting.bcast_sta_id = IWL3945_BROADCAST_ID; | |
3e82a822 TW |
2589 | |
2590 | priv->hw_setting.tx_ant_num = 2; | |
b481de9c ZY |
2591 | return 0; |
2592 | } | |
2593 | ||
bb8c093b CH |
2594 | unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv, |
2595 | struct iwl3945_frame *frame, u8 rate) | |
b481de9c | 2596 | { |
bb8c093b | 2597 | struct iwl3945_tx_beacon_cmd *tx_beacon_cmd; |
b481de9c ZY |
2598 | unsigned int frame_size; |
2599 | ||
bb8c093b | 2600 | tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u; |
b481de9c ZY |
2601 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); |
2602 | ||
a4062b8f | 2603 | tx_beacon_cmd->tx.sta_id = priv->hw_setting.bcast_sta_id; |
b481de9c ZY |
2604 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
2605 | ||
bb8c093b | 2606 | frame_size = iwl3945_fill_beacon_frame(priv, |
b481de9c | 2607 | tx_beacon_cmd->frame, |
bb8c093b | 2608 | iwl3945_broadcast_addr, |
b481de9c ZY |
2609 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
2610 | ||
2611 | BUG_ON(frame_size > MAX_MPDU_SIZE); | |
2612 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); | |
2613 | ||
2614 | tx_beacon_cmd->tx.rate = rate; | |
2615 | tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | | |
2616 | TX_CMD_FLG_TSF_MSK); | |
2617 | ||
14577f23 MA |
2618 | /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/ |
2619 | tx_beacon_cmd->tx.supp_rates[0] = | |
2620 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
2621 | ||
b481de9c | 2622 | tx_beacon_cmd->tx.supp_rates[1] = |
14577f23 | 2623 | (IWL_CCK_BASIC_RATES_MASK & 0xF); |
b481de9c | 2624 | |
bb8c093b | 2625 | return (sizeof(struct iwl3945_tx_beacon_cmd) + frame_size); |
b481de9c ZY |
2626 | } |
2627 | ||
bb8c093b | 2628 | void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv) |
b481de9c | 2629 | { |
91c066f2 | 2630 | priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx; |
b481de9c ZY |
2631 | priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx; |
2632 | } | |
2633 | ||
bb8c093b | 2634 | void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
2635 | { |
2636 | INIT_DELAYED_WORK(&priv->thermal_periodic, | |
2637 | iwl3945_bg_reg_txpower_periodic); | |
2638 | } | |
2639 | ||
bb8c093b | 2640 | void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv) |
b481de9c ZY |
2641 | { |
2642 | cancel_delayed_work(&priv->thermal_periodic); | |
2643 | } | |
2644 | ||
82b9a121 TW |
2645 | static struct iwl_3945_cfg iwl3945_bg_cfg = { |
2646 | .name = "3945BG", | |
4bf775cd | 2647 | .fw_name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode", |
82b9a121 TW |
2648 | .sku = IWL_SKU_G, |
2649 | }; | |
2650 | ||
2651 | static struct iwl_3945_cfg iwl3945_abg_cfg = { | |
2652 | .name = "3945ABG", | |
4bf775cd | 2653 | .fw_name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode", |
82b9a121 TW |
2654 | .sku = IWL_SKU_A|IWL_SKU_G, |
2655 | }; | |
2656 | ||
bb8c093b | 2657 | struct pci_device_id iwl3945_hw_card_ids[] = { |
82b9a121 TW |
2658 | {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)}, |
2659 | {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)}, | |
2660 | {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)}, | |
2661 | {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)}, | |
2662 | {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)}, | |
2663 | {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)}, | |
b481de9c ZY |
2664 | {0} |
2665 | }; | |
2666 | ||
bb8c093b | 2667 | MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids); |