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Zhu Yib481de92007-09-25 17:54:57 -07001/******************************************************************************
2 *
Wey-Yi Guybe663ab2011-02-21 11:27:26 -08003 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
Zhu Yib481de92007-09-25 17:54:57 -07004 *
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:
Winkler, Tomas759ef892008-12-09 11:28:58 -080022 * Intel Linux Wireless <ilw@linux.intel.com>
Zhu Yib481de92007-09-25 17:54:57 -070023 * 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>
Zhu Yib481de92007-09-25 17:54:57 -070029#include <linux/init.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090030#include <linux/slab.h>
Zhu Yib481de92007-09-25 17:54:57 -070031#include <linux/pci.h>
32#include <linux/dma-mapping.h>
33#include <linux/delay.h>
Alexey Dobriyand43c36d2009-10-07 17:09:06 +040034#include <linux/sched.h>
Zhu Yib481de92007-09-25 17:54:57 -070035#include <linux/skbuff.h>
36#include <linux/netdevice.h>
Zhu Yib481de92007-09-25 17:54:57 -070037#include <linux/firmware.h>
Zhu Yib481de92007-09-25 17:54:57 -070038#include <linux/etherdevice.h>
Zhu Yi12342c42007-12-20 11:27:32 +080039#include <asm/unaligned.h>
40#include <net/mac80211.h>
Zhu Yib481de92007-09-25 17:54:57 -070041
Winkler, Tomasdbb66542008-12-22 11:31:14 +080042#include "iwl-fh.h"
Tomas Winklerbddadf82008-12-19 10:37:01 +080043#include "iwl-3945-fh.h"
Tomas Winkler600c0e12008-12-19 10:37:04 +080044#include "iwl-commands.h"
Samuel Ortiz17f841c2009-01-23 13:45:20 -080045#include "iwl-sta.h"
Zhu Yib481de92007-09-25 17:54:57 -070046#include "iwl-3945.h"
Samuel Ortize6148912009-01-23 13:45:15 -080047#include "iwl-eeprom.h"
Kolekar, Abhijeet5747d472008-12-19 10:37:18 +080048#include "iwl-core.h"
Reinette Chatre4a6547c2010-02-18 22:03:02 -080049#include "iwl-helpers.h"
Johannes Berge932a602009-10-02 13:44:03 -070050#include "iwl-led.h"
51#include "iwl-3945-led.h"
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -070052#include "iwl-3945-debugfs.h"
Zhu Yib481de92007-09-25 17:54:57 -070053
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020054#define IL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
55 [IL_RATE_##r##M_INDEX] = { IL_RATE_##r##M_PLCP, \
56 IL_RATE_##r##M_IEEE, \
57 IL_RATE_##ip##M_INDEX, \
58 IL_RATE_##in##M_INDEX, \
59 IL_RATE_##rp##M_INDEX, \
60 IL_RATE_##rn##M_INDEX, \
61 IL_RATE_##pp##M_INDEX, \
62 IL_RATE_##np##M_INDEX, \
63 IL_RATE_##r##M_INDEX_TABLE, \
64 IL_RATE_##ip##M_INDEX_TABLE }
Zhu Yib481de92007-09-25 17:54:57 -070065
66/*
67 * Parameter order:
68 * rate, prev rate, next rate, prev tgg rate, next tgg rate
69 *
70 * If there isn't a valid next or previous rate then INV is used which
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020071 * maps to IL_RATE_INVALID
Zhu Yib481de92007-09-25 17:54:57 -070072 *
73 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020074const struct il3945_rate_info il3945_rates[IL_RATE_COUNT_3945] = {
75 IL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
76 IL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
77 IL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
78 IL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
79 IL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
80 IL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
81 IL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
82 IL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */
83 IL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */
84 IL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
85 IL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
86 IL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
Zhu Yib481de92007-09-25 17:54:57 -070087};
88
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020089static inline u8 il3945_get_prev_ieee_rate(u8 rate_index)
Johannes Berg635b85b2010-09-22 18:02:04 +020090{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020091 u8 rate = il3945_rates[rate_index].prev_ieee;
Johannes Berg635b85b2010-09-22 18:02:04 +020092
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020093 if (rate == IL_RATE_INVALID)
Johannes Berg635b85b2010-09-22 18:02:04 +020094 rate = rate_index;
95 return rate;
96}
97
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +020098/* 1 = enable the il3945_disable_events() function */
99#define IL_EVT_DISABLE (0)
100#define IL_EVT_DISABLE_SIZE (1532/32)
Zhu Yib481de92007-09-25 17:54:57 -0700101
102/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200103 * il3945_disable_events - Disable selected events in uCode event log
Zhu Yib481de92007-09-25 17:54:57 -0700104 *
105 * Disable an event by writing "1"s into "disable"
106 * bitmap in SRAM. Bit position corresponds to Event # (id/type).
107 * Default values of 0 enable uCode events to be logged.
108 * Use for only special debugging. This function is just a placeholder as-is,
109 * you'll need to provide the special bits! ...
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200110 * ... and set IL_EVT_DISABLE to 1. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200111void il3945_disable_events(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700112{
Zhu Yib481de92007-09-25 17:54:57 -0700113 int i;
114 u32 base; /* SRAM address of event log header */
115 u32 disable_ptr; /* SRAM address of event-disable bitmap array */
116 u32 array_size; /* # of u32 entries in array */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200117 static const u32 evt_disable[IL_EVT_DISABLE_SIZE] = {
Zhu Yib481de92007-09-25 17:54:57 -0700118 0x00000000, /* 31 - 0 Event id numbers */
119 0x00000000, /* 63 - 32 */
120 0x00000000, /* 95 - 64 */
121 0x00000000, /* 127 - 96 */
122 0x00000000, /* 159 - 128 */
123 0x00000000, /* 191 - 160 */
124 0x00000000, /* 223 - 192 */
125 0x00000000, /* 255 - 224 */
126 0x00000000, /* 287 - 256 */
127 0x00000000, /* 319 - 288 */
128 0x00000000, /* 351 - 320 */
129 0x00000000, /* 383 - 352 */
130 0x00000000, /* 415 - 384 */
131 0x00000000, /* 447 - 416 */
132 0x00000000, /* 479 - 448 */
133 0x00000000, /* 511 - 480 */
134 0x00000000, /* 543 - 512 */
135 0x00000000, /* 575 - 544 */
136 0x00000000, /* 607 - 576 */
137 0x00000000, /* 639 - 608 */
138 0x00000000, /* 671 - 640 */
139 0x00000000, /* 703 - 672 */
140 0x00000000, /* 735 - 704 */
141 0x00000000, /* 767 - 736 */
142 0x00000000, /* 799 - 768 */
143 0x00000000, /* 831 - 800 */
144 0x00000000, /* 863 - 832 */
145 0x00000000, /* 895 - 864 */
146 0x00000000, /* 927 - 896 */
147 0x00000000, /* 959 - 928 */
148 0x00000000, /* 991 - 960 */
149 0x00000000, /* 1023 - 992 */
150 0x00000000, /* 1055 - 1024 */
151 0x00000000, /* 1087 - 1056 */
152 0x00000000, /* 1119 - 1088 */
153 0x00000000, /* 1151 - 1120 */
154 0x00000000, /* 1183 - 1152 */
155 0x00000000, /* 1215 - 1184 */
156 0x00000000, /* 1247 - 1216 */
157 0x00000000, /* 1279 - 1248 */
158 0x00000000, /* 1311 - 1280 */
159 0x00000000, /* 1343 - 1312 */
160 0x00000000, /* 1375 - 1344 */
161 0x00000000, /* 1407 - 1376 */
162 0x00000000, /* 1439 - 1408 */
163 0x00000000, /* 1471 - 1440 */
164 0x00000000, /* 1503 - 1472 */
165 };
166
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200167 base = le32_to_cpu(il->card_alive.log_event_table_ptr);
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200168 if (!il3945_hw_valid_rtc_data_addr(base)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200169 IL_ERR("Invalid event log pointer 0x%08X\n", base);
Zhu Yib481de92007-09-25 17:54:57 -0700170 return;
171 }
172
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200173 disable_ptr = il_read_targ_mem(il, base + (4 * sizeof(u32)));
174 array_size = il_read_targ_mem(il, base + (5 * sizeof(u32)));
Zhu Yib481de92007-09-25 17:54:57 -0700175
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200176 if (IL_EVT_DISABLE && (array_size == IL_EVT_DISABLE_SIZE)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100177 D_INFO("Disabling selected uCode log events at 0x%x\n",
Zhu Yib481de92007-09-25 17:54:57 -0700178 disable_ptr);
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200179 for (i = 0; i < IL_EVT_DISABLE_SIZE; i++)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200180 il_write_targ_mem(il,
Tomas Winkleraf7cca22007-10-25 17:15:36 +0800181 disable_ptr + (i * sizeof(u32)),
182 evt_disable[i]);
Zhu Yib481de92007-09-25 17:54:57 -0700183
Zhu Yib481de92007-09-25 17:54:57 -0700184 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100185 D_INFO("Selected uCode log events may be disabled\n");
186 D_INFO(" by writing \"1\"s into disable bitmap\n");
187 D_INFO(" in SRAM at 0x%x, size %d u32s\n",
Zhu Yib481de92007-09-25 17:54:57 -0700188 disable_ptr, array_size);
189 }
190
191}
192
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200193static int il3945_hwrate_to_plcp_idx(u8 plcp)
Tomas Winkler17744ff2008-03-02 01:52:00 +0200194{
195 int idx;
196
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200197 for (idx = 0; idx < IL_RATE_COUNT_3945; idx++)
198 if (il3945_rates[idx].plcp == plcp)
Tomas Winkler17744ff2008-03-02 01:52:00 +0200199 return idx;
200 return -1;
201}
202
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800203#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
Wey-Yi Guy04569cb2010-03-31 17:57:28 -0700204#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
Tomas Winkler91c066f2008-03-06 17:36:55 -0800205
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200206static const char *il3945_get_tx_fail_reason(u32 status)
Tomas Winkler91c066f2008-03-06 17:36:55 -0800207{
208 switch (status & TX_STATUS_MSK) {
Wey-Yi Guy04569cb2010-03-31 17:57:28 -0700209 case TX_3945_STATUS_SUCCESS:
Tomas Winkler91c066f2008-03-06 17:36:55 -0800210 return "SUCCESS";
211 TX_STATUS_ENTRY(SHORT_LIMIT);
212 TX_STATUS_ENTRY(LONG_LIMIT);
213 TX_STATUS_ENTRY(FIFO_UNDERRUN);
214 TX_STATUS_ENTRY(MGMNT_ABORT);
215 TX_STATUS_ENTRY(NEXT_FRAG);
216 TX_STATUS_ENTRY(LIFE_EXPIRE);
217 TX_STATUS_ENTRY(DEST_PS);
218 TX_STATUS_ENTRY(ABORTED);
219 TX_STATUS_ENTRY(BT_RETRY);
220 TX_STATUS_ENTRY(STA_INVALID);
221 TX_STATUS_ENTRY(FRAG_DROPPED);
222 TX_STATUS_ENTRY(TID_DISABLE);
223 TX_STATUS_ENTRY(FRAME_FLUSHED);
224 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
225 TX_STATUS_ENTRY(TX_LOCKED);
226 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
227 }
228
229 return "UNKNOWN";
230}
231#else
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200232static inline const char *il3945_get_tx_fail_reason(u32 status)
Tomas Winkler91c066f2008-03-06 17:36:55 -0800233{
234 return "";
235}
236#endif
237
Johannes Berge6a98542008-10-21 12:40:02 +0200238/*
239 * get ieee prev rate from rate scale table.
240 * for A and B mode we need to overright prev
241 * value
242 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200243int il3945_rs_next_rate(struct il_priv *il, int rate)
Johannes Berge6a98542008-10-21 12:40:02 +0200244{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200245 int next_rate = il3945_get_prev_ieee_rate(rate);
Johannes Berge6a98542008-10-21 12:40:02 +0200246
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200247 switch (il->band) {
Johannes Berge6a98542008-10-21 12:40:02 +0200248 case IEEE80211_BAND_5GHZ:
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200249 if (rate == IL_RATE_12M_INDEX)
250 next_rate = IL_RATE_9M_INDEX;
251 else if (rate == IL_RATE_6M_INDEX)
252 next_rate = IL_RATE_6M_INDEX;
Johannes Berge6a98542008-10-21 12:40:02 +0200253 break;
Abbas, Mohamed72627962008-12-05 07:58:37 -0800254 case IEEE80211_BAND_2GHZ:
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200255 if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) &&
256 il_is_associated(il, IL_RXON_CTX_BSS)) {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200257 if (rate == IL_RATE_11M_INDEX)
258 next_rate = IL_RATE_5M_INDEX;
Abbas, Mohamed72627962008-12-05 07:58:37 -0800259 }
Johannes Berge6a98542008-10-21 12:40:02 +0200260 break;
Abbas, Mohamed72627962008-12-05 07:58:37 -0800261
Johannes Berge6a98542008-10-21 12:40:02 +0200262 default:
263 break;
264 }
265
266 return next_rate;
267}
268
Tomas Winkler91c066f2008-03-06 17:36:55 -0800269
270/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200271 * il3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
Tomas Winkler91c066f2008-03-06 17:36:55 -0800272 *
273 * When FW advances 'R' index, all entries between old and new 'R' index
274 * need to be reclaimed. As result, some free space forms. If there is
275 * enough free space (> low mark), wake the stack that feeds us.
276 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200277static void il3945_tx_queue_reclaim(struct il_priv *il,
Tomas Winkler91c066f2008-03-06 17:36:55 -0800278 int txq_id, int index)
279{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200280 struct il_tx_queue *txq = &il->txq[txq_id];
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200281 struct il_queue *q = &txq->q;
282 struct il_tx_info *tx_info;
Tomas Winkler91c066f2008-03-06 17:36:55 -0800283
Johannes Berg13bb9482010-08-23 10:46:33 +0200284 BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800285
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200286 for (index = il_queue_inc_wrap(index, q->n_bd);
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800287 q->read_ptr != index;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200288 q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
Tomas Winkler91c066f2008-03-06 17:36:55 -0800289
290 tx_info = &txq->txb[txq->q.read_ptr];
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200291 ieee80211_tx_status_irqsafe(il->hw, tx_info->skb);
Johannes Bergff0d91c2010-05-17 02:37:34 -0700292 tx_info->skb = NULL;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200293 il->cfg->ops->lib->txq_free_tfd(il, txq);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800294 }
295
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200296 if (il_queue_space(q) > q->low_mark && (txq_id >= 0) &&
Johannes Berg13bb9482010-08-23 10:46:33 +0200297 (txq_id != IWL39_CMD_QUEUE_NUM) &&
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200298 il->mac80211_registered)
299 il_wake_queue(il, txq);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800300}
301
302/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200303 * il3945_rx_reply_tx - Handle Tx response
Tomas Winkler91c066f2008-03-06 17:36:55 -0800304 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200305static void il3945_rx_reply_tx(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200306 struct il_rx_mem_buffer *rxb)
Tomas Winkler91c066f2008-03-06 17:36:55 -0800307{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200308 struct il_rx_packet *pkt = rxb_addr(rxb);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800309 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
310 int txq_id = SEQ_TO_QUEUE(sequence);
311 int index = SEQ_TO_INDEX(sequence);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200312 struct il_tx_queue *txq = &il->txq[txq_id];
Johannes Berge039fa42008-05-15 12:55:29 +0200313 struct ieee80211_tx_info *info;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200314 struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
Tomas Winkler91c066f2008-03-06 17:36:55 -0800315 u32 status = le32_to_cpu(tx_resp->status);
316 int rate_idx;
Abbas, Mohamed74221d02008-12-02 12:14:03 -0800317 int fail;
Tomas Winkler91c066f2008-03-06 17:36:55 -0800318
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200319 if ((index >= txq->q.n_bd) || (il_queue_used(&txq->q, index) == 0)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200320 IL_ERR("Read index for DMA queue txq_id (%d) index %d "
Tomas Winkler91c066f2008-03-06 17:36:55 -0800321 "is out of range [0-%d] %d %d\n", txq_id,
322 index, txq->q.n_bd, txq->q.write_ptr,
323 txq->q.read_ptr);
324 return;
325 }
326
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +0100327 txq->time_stamp = jiffies;
Johannes Bergff0d91c2010-05-17 02:37:34 -0700328 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
Johannes Berge6a98542008-10-21 12:40:02 +0200329 ieee80211_tx_info_clear_status(info);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800330
Johannes Berge6a98542008-10-21 12:40:02 +0200331 /* Fill the MRR chain with some info about on-chip retransmissions */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200332 rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate);
Johannes Berge6a98542008-10-21 12:40:02 +0200333 if (info->band == IEEE80211_BAND_5GHZ)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200334 rate_idx -= IL_FIRST_OFDM_RATE;
Johannes Berge6a98542008-10-21 12:40:02 +0200335
336 fail = tx_resp->failure_frame;
Johannes Berge6a98542008-10-21 12:40:02 +0200337
Abbas, Mohamed74221d02008-12-02 12:14:03 -0800338 info->status.rates[0].idx = rate_idx;
339 info->status.rates[0].count = fail + 1; /* add final attempt */
Johannes Berge6a98542008-10-21 12:40:02 +0200340
Tomas Winkler91c066f2008-03-06 17:36:55 -0800341 /* tx_status->rts_retry_count = tx_resp->failure_rts; */
Johannes Berge039fa42008-05-15 12:55:29 +0200342 info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
343 IEEE80211_TX_STAT_ACK : 0;
Tomas Winkler91c066f2008-03-06 17:36:55 -0800344
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100345 D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200346 txq_id, il3945_get_tx_fail_reason(status), status,
Tomas Winkler91c066f2008-03-06 17:36:55 -0800347 tx_resp->rate, tx_resp->failure_frame);
348
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100349 D_TX_REPLY("Tx queue reclaim %d\n", index);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200350 il3945_tx_queue_reclaim(il, txq_id, index);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800351
Johannes Berga313f382010-09-22 18:02:12 +0200352 if (status & TX_ABORT_REQUIRED_MSK)
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200353 IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n");
Tomas Winkler91c066f2008-03-06 17:36:55 -0800354}
355
356
357
Zhu Yib481de92007-09-25 17:54:57 -0700358/*****************************************************************************
359 *
360 * Intel PRO/Wireless 3945ABG/BG Network Connection
361 *
362 * RX handler implementations
363 *
Zhu Yib481de92007-09-25 17:54:57 -0700364 *****************************************************************************/
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800365#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200366static void il3945_accumulative_statistics(struct il_priv *il,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700367 __le32 *stats)
368{
369 int i;
370 __le32 *prev_stats;
371 u32 *accum_stats;
372 u32 *delta, *max_delta;
373
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200374 prev_stats = (__le32 *)&il->_3945.statistics;
375 accum_stats = (u32 *)&il->_3945.accum_statistics;
376 delta = (u32 *)&il->_3945.delta_statistics;
377 max_delta = (u32 *)&il->_3945.max_delta;
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700378
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200379 for (i = sizeof(__le32); i < sizeof(struct il3945_notif_statistics);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700380 i += sizeof(__le32), stats++, prev_stats++, delta++,
381 max_delta++, accum_stats++) {
382 if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
383 *delta = (le32_to_cpu(*stats) -
384 le32_to_cpu(*prev_stats));
385 *accum_stats += *delta;
386 if (*delta > *max_delta)
387 *max_delta = *delta;
388 }
389 }
390
391 /* reset accumulative statistics for "no-counter" type statistics */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200392 il->_3945.accum_statistics.general.temperature =
393 il->_3945.statistics.general.temperature;
394 il->_3945.accum_statistics.general.ttl_timestamp =
395 il->_3945.statistics.general.ttl_timestamp;
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700396}
397#endif
Zhu Yib481de92007-09-25 17:54:57 -0700398
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200399void il3945_hw_rx_statistics(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200400 struct il_rx_mem_buffer *rxb)
Zhu Yib481de92007-09-25 17:54:57 -0700401{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200402 struct il_rx_packet *pkt = rxb_addr(rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700403
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100404 D_RX("Statistics notification received (%d vs %d).\n",
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200405 (int)sizeof(struct il3945_notif_statistics),
Daniel C Halperin396887a2009-08-13 13:31:01 -0700406 le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800407#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200408 il3945_accumulative_statistics(il, (__le32 *)&pkt->u.raw);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700409#endif
Zhu Yib481de92007-09-25 17:54:57 -0700410
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200411 memcpy(&il->_3945.statistics, pkt->u.raw, sizeof(il->_3945.statistics));
Zhu Yib481de92007-09-25 17:54:57 -0700412}
413
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200414void il3945_reply_statistics(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200415 struct il_rx_mem_buffer *rxb)
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700416{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200417 struct il_rx_packet *pkt = rxb_addr(rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700418 __le32 *flag = (__le32 *)&pkt->u.raw;
419
420 if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800421#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200422 memset(&il->_3945.accum_statistics, 0,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200423 sizeof(struct il3945_notif_statistics));
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200424 memset(&il->_3945.delta_statistics, 0,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200425 sizeof(struct il3945_notif_statistics));
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200426 memset(&il->_3945.max_delta, 0,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200427 sizeof(struct il3945_notif_statistics));
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700428#endif
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100429 D_RX("Statistics have been cleared\n");
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700430 }
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200431 il3945_hw_rx_statistics(il, rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700432}
433
434
Tomas Winkler17744ff2008-03-02 01:52:00 +0200435/******************************************************************************
436 *
437 * Misc. internal state and helper functions
438 *
439 ******************************************************************************/
Tomas Winkler17744ff2008-03-02 01:52:00 +0200440
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800441/* This is necessary only for a number of statistics, see the caller. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200442static int il3945_is_network_packet(struct il_priv *il,
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800443 struct ieee80211_hdr *header)
444{
445 /* Filter incoming packets to determine if they are targeted toward
446 * this network, discarding packets coming from ourselves */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200447 switch (il->iw_mode) {
Johannes Berg05c914f2008-09-11 00:01:58 +0200448 case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800449 /* packets to our IBSS update information */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200450 return !compare_ether_addr(header->addr3, il->bssid);
Johannes Berg05c914f2008-09-11 00:01:58 +0200451 case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800452 /* packets to our IBSS update information */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200453 return !compare_ether_addr(header->addr2, il->bssid);
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800454 default:
455 return 1;
456 }
457}
Tomas Winkler17744ff2008-03-02 01:52:00 +0200458
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200459static void il3945_pass_packet_to_mac80211(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200460 struct il_rx_mem_buffer *rxb,
Zhu Yi12342c42007-12-20 11:27:32 +0800461 struct ieee80211_rx_status *stats)
Zhu Yib481de92007-09-25 17:54:57 -0700462{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200463 struct il_rx_packet *pkt = rxb_addr(rxb);
464 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
465 struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
466 struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
Zhu Yi2f301222009-10-09 17:19:45 +0800467 u16 len = le16_to_cpu(rx_hdr->len);
468 struct sk_buff *skb;
Zhu Yi29b1b262009-10-23 13:42:25 -0700469 __le16 fc = hdr->frame_control;
Zhu Yib481de92007-09-25 17:54:57 -0700470
471 /* We received data from the HW, so stop the watchdog */
Zhu Yi2f301222009-10-09 17:19:45 +0800472 if (unlikely(len + IWL39_RX_FRAME_SIZE >
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200473 PAGE_SIZE << il->hw_params.rx_page_order)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100474 D_DROP("Corruption detected!\n");
Zhu Yib481de92007-09-25 17:54:57 -0700475 return;
476 }
477
478 /* We only process data packets if the interface is open */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200479 if (unlikely(!il->is_open)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100480 D_DROP(
Tomas Winklere1623442009-01-27 14:27:56 -0800481 "Dropping packet while interface is not open.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700482 return;
483 }
Zhu Yib481de92007-09-25 17:54:57 -0700484
Zhu Yiecdf94b2010-03-29 16:42:26 +0800485 skb = dev_alloc_skb(128);
Zhu Yi2f301222009-10-09 17:19:45 +0800486 if (!skb) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200487 IL_ERR("dev_alloc_skb failed\n");
Zhu Yi2f301222009-10-09 17:19:45 +0800488 return;
489 }
Zhu Yib481de92007-09-25 17:54:57 -0700490
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200491 if (!il3945_mod_params.sw_crypto)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200492 il_set_decrypted_flag(il,
Zhu Yi2f301222009-10-09 17:19:45 +0800493 (struct ieee80211_hdr *)rxb_addr(rxb),
Zhu Yib481de92007-09-25 17:54:57 -0700494 le32_to_cpu(rx_end->status), stats);
495
Zhu Yi2f301222009-10-09 17:19:45 +0800496 skb_add_rx_frag(skb, 0, rxb->page,
497 (void *)rx_hdr->payload - (void *)pkt, len);
498
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200499 il_update_stats(il, false, fc, len);
Zhu Yi2f301222009-10-09 17:19:45 +0800500 memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
Zhu Yi2f301222009-10-09 17:19:45 +0800501
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200502 ieee80211_rx(il->hw, skb);
503 il->alloc_rxb_page--;
Zhu Yi2f301222009-10-09 17:19:45 +0800504 rxb->page = NULL;
Zhu Yib481de92007-09-25 17:54:57 -0700505}
506
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200507#define IL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
Mohamed Abbas7878a5a2007-11-29 11:10:13 +0800508
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200509static void il3945_rx_reply_rx(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200510 struct il_rx_mem_buffer *rxb)
Zhu Yib481de92007-09-25 17:54:57 -0700511{
Tomas Winkler17744ff2008-03-02 01:52:00 +0200512 struct ieee80211_hdr *header;
513 struct ieee80211_rx_status rx_status;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200514 struct il_rx_packet *pkt = rxb_addr(rxb);
515 struct il3945_rx_frame_stats *rx_stats = IL_RX_STATS(pkt);
516 struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
517 struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
Reinette Chatref875f512010-04-05 10:43:10 -0700518 u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
519 u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff);
Zhu Yib481de92007-09-25 17:54:57 -0700520 u8 network_packet;
Tomas Winkler17744ff2008-03-02 01:52:00 +0200521
Tomas Winkler17744ff2008-03-02 01:52:00 +0200522 rx_status.flag = 0;
523 rx_status.mactime = le64_to_cpu(rx_end->timestamp);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200524 rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
525 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
Bruno Randolf59eb21a2011-01-17 13:37:28 +0900526 rx_status.freq =
527 ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
528 rx_status.band);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200529
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200530 rx_status.rate_idx = il3945_hwrate_to_plcp_idx(rx_hdr->rate);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200531 if (rx_status.band == IEEE80211_BAND_5GHZ)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200532 rx_status.rate_idx -= IL_FIRST_OFDM_RATE;
Zhu Yib481de92007-09-25 17:54:57 -0700533
Reinette Chatre9024adf2009-10-02 13:43:57 -0700534 rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) &
Bruno Randolf6f0a2c42008-07-30 17:20:14 +0200535 RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
536
537 /* set the preamble flag if appropriate */
538 if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
539 rx_status.flag |= RX_FLAG_SHORTPRE;
540
Zhu Yib481de92007-09-25 17:54:57 -0700541 if ((unlikely(rx_stats->phy_count > 20))) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100542 D_DROP("dsp size out of range [0,20]: %d/n",
Tomas Winklere1623442009-01-27 14:27:56 -0800543 rx_stats->phy_count);
Zhu Yib481de92007-09-25 17:54:57 -0700544 return;
545 }
546
547 if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
548 || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100549 D_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
Zhu Yib481de92007-09-25 17:54:57 -0700550 return;
551 }
552
Maxim Levitsky56decd32008-08-01 12:54:27 +0300553
Zhu Yib481de92007-09-25 17:54:57 -0700554
555 /* Convert 3945's rssi indicator to dBm */
Samuel Ortiz250bdd22008-12-19 10:37:11 +0800556 rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET;
Zhu Yib481de92007-09-25 17:54:57 -0700557
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100558 D_STATS("Rssi %d sig_avg %d noise_diff %d\n",
Johannes Berged1b6e92010-03-18 09:58:27 -0700559 rx_status.signal, rx_stats_sig_avg,
560 rx_stats_noise_diff);
Zhu Yib481de92007-09-25 17:54:57 -0700561
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200562 header = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
Zhu Yib481de92007-09-25 17:54:57 -0700563
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200564 network_packet = il3945_is_network_packet(il, header);
Zhu Yib481de92007-09-25 17:54:57 -0700565
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100566 D_STATS("[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
Tomas Winkler17744ff2008-03-02 01:52:00 +0200567 network_packet ? '*' : ' ',
568 le16_to_cpu(rx_hdr->channel),
Bruno Randolf566bfe52008-05-08 19:15:40 +0200569 rx_status.signal, rx_status.signal,
Johannes Berged1b6e92010-03-18 09:58:27 -0700570 rx_status.rate_idx);
Zhu Yib481de92007-09-25 17:54:57 -0700571
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200572 il_dbg_log_rx_data_frame(il, le16_to_cpu(rx_hdr->len),
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800573 header);
Zhu Yib481de92007-09-25 17:54:57 -0700574
575 if (network_packet) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200576 il->_3945.last_beacon_time =
Johannes Berge99f1682010-01-19 10:04:28 -0800577 le32_to_cpu(rx_end->beacon_timestamp);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200578 il->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
579 il->_3945.last_rx_rssi = rx_status.signal;
Zhu Yib481de92007-09-25 17:54:57 -0700580 }
581
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200582 il3945_pass_packet_to_mac80211(il, rxb, &rx_status);
Zhu Yib481de92007-09-25 17:54:57 -0700583}
584
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200585int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200586 struct il_tx_queue *txq,
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800587 dma_addr_t addr, u16 len, u8 reset, u8 pad)
Zhu Yib481de92007-09-25 17:54:57 -0700588{
589 int count;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200590 struct il_queue *q;
591 struct il3945_tfd *tfd, *tfd_tmp;
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800592
593 q = &txq->q;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200594 tfd_tmp = (struct il3945_tfd *)txq->tfds;
Samuel Ortiz59606ff2009-01-23 13:45:13 -0800595 tfd = &tfd_tmp[q->write_ptr];
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800596
597 if (reset)
598 memset(tfd, 0, sizeof(*tfd));
Zhu Yib481de92007-09-25 17:54:57 -0700599
600 count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
Zhu Yib481de92007-09-25 17:54:57 -0700601
602 if ((count >= NUM_TFD_CHUNKS) || (count < 0)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200603 IL_ERR("Error can not send more than %d chunks\n",
Zhu Yib481de92007-09-25 17:54:57 -0700604 NUM_TFD_CHUNKS);
605 return -EINVAL;
606 }
607
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800608 tfd->tbs[count].addr = cpu_to_le32(addr);
609 tfd->tbs[count].len = cpu_to_le32(len);
Zhu Yib481de92007-09-25 17:54:57 -0700610
611 count++;
612
613 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
614 TFD_CTL_PAD_SET(pad));
615
616 return 0;
617}
618
619/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200620 * il3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
Zhu Yib481de92007-09-25 17:54:57 -0700621 *
622 * Does NOT advance any indexes
623 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200624void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
Zhu Yib481de92007-09-25 17:54:57 -0700625{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200626 struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds;
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700627 int index = txq->q.read_ptr;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200628 struct il3945_tfd *tfd = &tfd_tmp[index];
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200629 struct pci_dev *dev = il->pci_dev;
Zhu Yib481de92007-09-25 17:54:57 -0700630 int i;
631 int counter;
632
Zhu Yib481de92007-09-25 17:54:57 -0700633 /* sanity check */
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800634 counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
Zhu Yib481de92007-09-25 17:54:57 -0700635 if (counter > NUM_TFD_CHUNKS) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200636 IL_ERR("Too many chunks: %i\n", counter);
Zhu Yib481de92007-09-25 17:54:57 -0700637 /* @todo issue fatal error, it is quite serious situation */
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800638 return;
Zhu Yib481de92007-09-25 17:54:57 -0700639 }
640
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700641 /* Unmap tx_cmd */
642 if (counter)
643 pci_unmap_single(dev,
FUJITA Tomonori2e724442010-06-03 14:19:20 +0900644 dma_unmap_addr(&txq->meta[index], mapping),
645 dma_unmap_len(&txq->meta[index], len),
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700646 PCI_DMA_TODEVICE);
647
Zhu Yib481de92007-09-25 17:54:57 -0700648 /* unmap chunks if any */
649
Johannes Bergff0d91c2010-05-17 02:37:34 -0700650 for (i = 1; i < counter; i++)
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800651 pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
652 le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
Johannes Berg4f5fa232010-05-17 02:37:31 -0700653
Johannes Bergff0d91c2010-05-17 02:37:34 -0700654 /* free SKB */
655 if (txq->txb) {
656 struct sk_buff *skb;
Johannes Berg4f5fa232010-05-17 02:37:31 -0700657
Johannes Bergff0d91c2010-05-17 02:37:34 -0700658 skb = txq->txb[txq->q.read_ptr].skb;
659
660 /* can be called from irqs-disabled context */
661 if (skb) {
662 dev_kfree_skb_any(skb);
663 txq->txb[txq->q.read_ptr].skb = NULL;
Zhu Yib481de92007-09-25 17:54:57 -0700664 }
665 }
Zhu Yib481de92007-09-25 17:54:57 -0700666}
667
Zhu Yib481de92007-09-25 17:54:57 -0700668/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200669 * il3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
Zhu Yib481de92007-09-25 17:54:57 -0700670 *
671*/
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200672void il3945_hw_build_tx_cmd_rate(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200673 struct il_device_cmd *cmd,
Johannes Bergc2acea82009-07-24 11:13:05 -0700674 struct ieee80211_tx_info *info,
675 struct ieee80211_hdr *hdr,
676 int sta_id, int tx_id)
Zhu Yib481de92007-09-25 17:54:57 -0700677{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200678 u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200679 u16 rate_index = min(hw_value & 0xffff, IL_RATE_COUNT_3945);
Zhu Yib481de92007-09-25 17:54:57 -0700680 u16 rate_mask;
681 int rate;
682 u8 rts_retry_limit;
683 u8 data_retry_limit;
684 __le32 tx_flags;
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700685 __le16 fc = hdr->frame_control;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200686 struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
Zhu Yib481de92007-09-25 17:54:57 -0700687
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200688 rate = il3945_rates[rate_index].plcp;
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700689 tx_flags = tx_cmd->tx_flags;
Zhu Yib481de92007-09-25 17:54:57 -0700690
691 /* We need to figure out how to get the sta->supp_rates while
Johannes Berge039fa42008-05-15 12:55:29 +0200692 * in this running context */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200693 rate_mask = IL_RATES_MASK_3945;
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700694
695 /* Set retry limit on DATA packets and Probe Responses*/
696 if (ieee80211_is_probe_resp(fc))
697 data_retry_limit = 3;
698 else
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200699 data_retry_limit = IL_DEFAULT_TX_RETRY;
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700700 tx_cmd->data_retry_limit = data_retry_limit;
701
Johannes Berg13bb9482010-08-23 10:46:33 +0200702 if (tx_id >= IWL39_CMD_QUEUE_NUM)
Zhu Yib481de92007-09-25 17:54:57 -0700703 rts_retry_limit = 3;
704 else
705 rts_retry_limit = 7;
706
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700707 if (data_retry_limit < rts_retry_limit)
708 rts_retry_limit = data_retry_limit;
709 tx_cmd->rts_retry_limit = rts_retry_limit;
Zhu Yib481de92007-09-25 17:54:57 -0700710
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700711 tx_cmd->rate = rate;
712 tx_cmd->tx_flags = tx_flags;
Zhu Yib481de92007-09-25 17:54:57 -0700713
714 /* OFDM */
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700715 tx_cmd->supp_rates[0] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200716 ((rate_mask & IL_OFDM_RATES_MASK) >> IL_FIRST_OFDM_RATE) & 0xFF;
Zhu Yib481de92007-09-25 17:54:57 -0700717
718 /* CCK */
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700719 tx_cmd->supp_rates[1] = (rate_mask & 0xF);
Zhu Yib481de92007-09-25 17:54:57 -0700720
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100721 D_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
Zhu Yib481de92007-09-25 17:54:57 -0700722 "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700723 tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags),
724 tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]);
Zhu Yib481de92007-09-25 17:54:57 -0700725}
726
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200727static u8 il3945_sync_sta(struct il_priv *il, int sta_id, u16 tx_rate)
Zhu Yib481de92007-09-25 17:54:57 -0700728{
729 unsigned long flags_spin;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200730 struct il_station_entry *station;
Zhu Yib481de92007-09-25 17:54:57 -0700731
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200732 if (sta_id == IL_INVALID_STATION)
733 return IL_INVALID_STATION;
Zhu Yib481de92007-09-25 17:54:57 -0700734
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200735 spin_lock_irqsave(&il->sta_lock, flags_spin);
736 station = &il->stations[sta_id];
Zhu Yib481de92007-09-25 17:54:57 -0700737
738 station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
739 station->sta.rate_n_flags = cpu_to_le16(tx_rate);
Zhu Yib481de92007-09-25 17:54:57 -0700740 station->sta.mode = STA_CONTROL_MODIFY_MSK;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200741 il_send_add_sta(il, &station->sta, CMD_ASYNC);
742 spin_unlock_irqrestore(&il->sta_lock, flags_spin);
Zhu Yib481de92007-09-25 17:54:57 -0700743
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100744 D_RATE("SCALE sync station %d to rate %d\n",
Zhu Yib481de92007-09-25 17:54:57 -0700745 sta_id, tx_rate);
746 return sta_id;
747}
748
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200749static void il3945_set_pwr_vmain(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700750{
Johannes Berg9597eba2010-09-22 18:02:09 +0200751/*
752 * (for documentation purposes)
753 * to set power to V_AUX, do
754
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200755 if (pci_pme_capable(il->pci_dev, PCI_D3cold)) {
756 il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
Zhu Yib481de92007-09-25 17:54:57 -0700757 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
758 ~APMG_PS_CTRL_MSK_PWR_SRC);
Zhu Yib481de92007-09-25 17:54:57 -0700759
Stanislaw Gruszka142b3432011-08-24 15:22:57 +0200760 _il_poll_bit(il, CSR_GPIO_IN,
Zhu Yib481de92007-09-25 17:54:57 -0700761 CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
762 CSR_GPIO_IN_BIT_AUX_POWER, 5000);
Tomas Winkler3fdb68d2009-02-10 15:19:02 -0800763 }
Johannes Berg9597eba2010-09-22 18:02:09 +0200764 */
Zhu Yib481de92007-09-25 17:54:57 -0700765
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200766 il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
Johannes Berg9597eba2010-09-22 18:02:09 +0200767 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
768 ~APMG_PS_CTRL_MSK_PWR_SRC);
Zhu Yib481de92007-09-25 17:54:57 -0700769
Stanislaw Gruszka142b3432011-08-24 15:22:57 +0200770 _il_poll_bit(il, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
Johannes Berg9597eba2010-09-22 18:02:09 +0200771 CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
Zhu Yib481de92007-09-25 17:54:57 -0700772}
773
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200774static int il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq)
Zhu Yib481de92007-09-25 17:54:57 -0700775{
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200776 il_wr(il, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
777 il_wr(il, FH39_RCSR_RPTR_ADDR(0),
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800778 rxq->rb_stts_dma);
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200779 il_wr(il, FH39_RCSR_WPTR(0), 0);
780 il_wr(il, FH39_RCSR_CONFIG(0),
Tomas Winklerbddadf82008-12-19 10:37:01 +0800781 FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
782 FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
783 FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
784 FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
785 (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
786 FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
787 (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
788 FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
Zhu Yib481de92007-09-25 17:54:57 -0700789
790 /* fake read to flush all prev I/O */
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200791 il_rd(il, FH39_RSSR_CTRL);
Zhu Yib481de92007-09-25 17:54:57 -0700792
Zhu Yib481de92007-09-25 17:54:57 -0700793 return 0;
794}
795
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200796static int il3945_tx_reset(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700797{
Zhu Yib481de92007-09-25 17:54:57 -0700798
799 /* bypass mode */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200800 il_wr_prph(il, ALM_SCD_MODE_REG, 0x2);
Zhu Yib481de92007-09-25 17:54:57 -0700801
802 /* RA 0 is active */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200803 il_wr_prph(il, ALM_SCD_ARASTAT_REG, 0x01);
Zhu Yib481de92007-09-25 17:54:57 -0700804
805 /* all 6 fifo are active */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200806 il_wr_prph(il, ALM_SCD_TXFACT_REG, 0x3f);
Zhu Yib481de92007-09-25 17:54:57 -0700807
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200808 il_wr_prph(il, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
809 il_wr_prph(il, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
810 il_wr_prph(il, ALM_SCD_TXF4MF_REG, 0x000004);
811 il_wr_prph(il, ALM_SCD_TXF5MF_REG, 0x000005);
Zhu Yib481de92007-09-25 17:54:57 -0700812
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200813 il_wr(il, FH39_TSSR_CBB_BASE,
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200814 il->_3945.shared_phys);
Zhu Yib481de92007-09-25 17:54:57 -0700815
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200816 il_wr(il, FH39_TSSR_MSG_CONFIG,
Tomas Winklerbddadf82008-12-19 10:37:01 +0800817 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
818 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
819 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
820 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
821 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
822 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
823 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
Zhu Yib481de92007-09-25 17:54:57 -0700824
Zhu Yib481de92007-09-25 17:54:57 -0700825
826 return 0;
827}
828
829/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200830 * il3945_txq_ctx_reset - Reset TX queue context
Zhu Yib481de92007-09-25 17:54:57 -0700831 *
832 * Destroys all DMA structures and initialize them again
833 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200834static int il3945_txq_ctx_reset(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700835{
836 int rc;
837 int txq_id, slots_num;
838
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200839 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -0700840
Wey-Yi Guy88804e22009-10-09 13:20:28 -0700841 /* allocate tx queue structure */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200842 rc = il_alloc_txq_mem(il);
Wey-Yi Guy88804e22009-10-09 13:20:28 -0700843 if (rc)
844 return rc;
845
Zhu Yib481de92007-09-25 17:54:57 -0700846 /* Tx CMD queue */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200847 rc = il3945_tx_reset(il);
Zhu Yib481de92007-09-25 17:54:57 -0700848 if (rc)
849 goto error;
850
851 /* Tx queue(s) */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200852 for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
Johannes Berg13bb9482010-08-23 10:46:33 +0200853 slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ?
Zhu Yib481de92007-09-25 17:54:57 -0700854 TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200855 rc = il_tx_queue_init(il, &il->txq[txq_id],
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800856 slots_num, txq_id);
Zhu Yib481de92007-09-25 17:54:57 -0700857 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200858 IL_ERR("Tx %d queue init failed\n", txq_id);
Zhu Yib481de92007-09-25 17:54:57 -0700859 goto error;
860 }
861 }
862
863 return rc;
864
865 error:
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200866 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -0700867 return rc;
868}
869
Ben Cahillfadb3582009-10-23 13:42:21 -0700870
Ben Cahillf33269b2009-10-09 13:20:19 -0700871/*
Ben Cahillfadb3582009-10-23 13:42:21 -0700872 * Start up 3945's basic functionality after it has been reset
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200873 * (e.g. after platform boot, or shutdown via il_apm_stop())
Ben Cahillf33269b2009-10-09 13:20:19 -0700874 * NOTE: This does not load uCode nor start the embedded processor
875 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200876static int il3945_apm_init(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700877{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200878 int ret = il_apm_init(il);
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800879
Ben Cahillf33269b2009-10-09 13:20:19 -0700880 /* Clear APMG (NIC's internal power management) interrupts */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200881 il_wr_prph(il, APMG_RTC_INT_MSK_REG, 0x0);
882 il_wr_prph(il, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
Ben Cahillf33269b2009-10-09 13:20:19 -0700883
884 /* Reset radio chip */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200885 il_set_bits_prph(il, APMG_PS_CTRL_REG,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800886 APMG_PS_CTRL_VAL_RESET_REQ);
Ben Cahillf33269b2009-10-09 13:20:19 -0700887 udelay(5);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200888 il_clear_bits_prph(il, APMG_PS_CTRL_REG,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800889 APMG_PS_CTRL_VAL_RESET_REQ);
Ben Cahillf33269b2009-10-09 13:20:19 -0700890
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800891 return ret;
892}
Zhu Yib481de92007-09-25 17:54:57 -0700893
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200894static void il3945_nic_config(struct il_priv *il)
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800895{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200896 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800897 unsigned long flags;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200898 u8 rev_id = il->pci_dev->revision;
Zhu Yib481de92007-09-25 17:54:57 -0700899
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200900 spin_lock_irqsave(&il->lock, flags);
Zhu Yib481de92007-09-25 17:54:57 -0700901
Abhijeet Kolekar43121432009-05-08 13:44:41 -0700902 /* Determine HW type */
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100903 D_INFO("HW Revision ID = 0x%X\n", rev_id);
Abhijeet Kolekar43121432009-05-08 13:44:41 -0700904
Zhu Yib481de92007-09-25 17:54:57 -0700905 if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100906 D_INFO("RTP type\n");
Zhu Yib481de92007-09-25 17:54:57 -0700907 else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100908 D_INFO("3945 RADIO-MB type\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200909 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800910 CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
Zhu Yib481de92007-09-25 17:54:57 -0700911 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100912 D_INFO("3945 RADIO-MM type\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200913 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800914 CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
Zhu Yib481de92007-09-25 17:54:57 -0700915 }
916
Samuel Ortize6148912009-01-23 13:45:15 -0800917 if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100918 D_INFO("SKU OP mode is mrc\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200919 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800920 CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
Zhu Yib481de92007-09-25 17:54:57 -0700921 } else
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100922 D_INFO("SKU OP mode is basic\n");
Zhu Yib481de92007-09-25 17:54:57 -0700923
Samuel Ortize6148912009-01-23 13:45:15 -0800924 if ((eeprom->board_revision & 0xF0) == 0xD0) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100925 D_INFO("3945ABG revision is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800926 eeprom->board_revision);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200927 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800928 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
Zhu Yib481de92007-09-25 17:54:57 -0700929 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100930 D_INFO("3945ABG revision is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800931 eeprom->board_revision);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200932 il_clear_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800933 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
Zhu Yib481de92007-09-25 17:54:57 -0700934 }
935
Samuel Ortize6148912009-01-23 13:45:15 -0800936 if (eeprom->almgor_m_version <= 1) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200937 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800938 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100939 D_INFO("Card M type A version is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800940 eeprom->almgor_m_version);
Zhu Yib481de92007-09-25 17:54:57 -0700941 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100942 D_INFO("Card M type B version is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800943 eeprom->almgor_m_version);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200944 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800945 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
Zhu Yib481de92007-09-25 17:54:57 -0700946 }
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200947 spin_unlock_irqrestore(&il->lock, flags);
Zhu Yib481de92007-09-25 17:54:57 -0700948
Samuel Ortize6148912009-01-23 13:45:15 -0800949 if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100950 D_RF_KILL("SW RF KILL supported in EEPROM.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700951
Samuel Ortize6148912009-01-23 13:45:15 -0800952 if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100953 D_RF_KILL("HW RF KILL supported in EEPROM.\n");
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800954}
955
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200956int il3945_hw_nic_init(struct il_priv *il)
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800957{
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800958 int rc;
959 unsigned long flags;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200960 struct il_rx_queue *rxq = &il->rxq;
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800961
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200962 spin_lock_irqsave(&il->lock, flags);
963 il->cfg->ops->lib->apm_ops.init(il);
964 spin_unlock_irqrestore(&il->lock, flags);
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800965
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200966 il3945_set_pwr_vmain(il);
Kolekar, Abhijeet854682e2008-12-19 10:37:39 +0800967
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200968 il->cfg->ops->lib->apm_ops.config(il);
Zhu Yib481de92007-09-25 17:54:57 -0700969
970 /* Allocate the RX queue, or reset if it is already allocated */
971 if (!rxq->bd) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200972 rc = il_rx_queue_alloc(il);
Zhu Yib481de92007-09-25 17:54:57 -0700973 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200974 IL_ERR("Unable to initialize Rx queue\n");
Zhu Yib481de92007-09-25 17:54:57 -0700975 return -ENOMEM;
976 }
977 } else
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200978 il3945_rx_queue_reset(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700979
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200980 il3945_rx_replenish(il);
Zhu Yib481de92007-09-25 17:54:57 -0700981
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200982 il3945_rx_init(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700983
Zhu Yib481de92007-09-25 17:54:57 -0700984
985 /* Look at using this instead:
986 rxq->need_update = 1;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200987 il_rx_queue_update_write_ptr(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700988 */
989
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200990 il_wr(il, FH39_RCSR_WPTR(0), rxq->write & ~7);
Zhu Yib481de92007-09-25 17:54:57 -0700991
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200992 rc = il3945_txq_ctx_reset(il);
Zhu Yib481de92007-09-25 17:54:57 -0700993 if (rc)
994 return rc;
995
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200996 set_bit(STATUS_INIT, &il->status);
Zhu Yib481de92007-09-25 17:54:57 -0700997
998 return 0;
999}
1000
1001/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001002 * il3945_hw_txq_ctx_free - Free TXQ Context
Zhu Yib481de92007-09-25 17:54:57 -07001003 *
1004 * Destroy all TX DMA queues and structures
1005 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001006void il3945_hw_txq_ctx_free(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001007{
1008 int txq_id;
1009
1010 /* Tx queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001011 if (il->txq)
1012 for (txq_id = 0; txq_id < il->hw_params.max_txq_num;
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001013 txq_id++)
Johannes Berg13bb9482010-08-23 10:46:33 +02001014 if (txq_id == IWL39_CMD_QUEUE_NUM)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001015 il_cmd_queue_free(il);
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001016 else
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001017 il_tx_queue_free(il, txq_id);
Abhijeet Kolekar3e5d2382009-03-17 21:51:49 -07001018
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001019 /* free tx queue structure */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001020 il_txq_mem(il);
Zhu Yib481de92007-09-25 17:54:57 -07001021}
1022
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001023void il3945_hw_txq_ctx_stop(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001024{
Tomas Winklerbddadf82008-12-19 10:37:01 +08001025 int txq_id;
Zhu Yib481de92007-09-25 17:54:57 -07001026
1027 /* stop SCD */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02001028 il_wr_prph(il, ALM_SCD_MODE_REG, 0);
1029 il_wr_prph(il, ALM_SCD_TXFACT_REG, 0);
Zhu Yib481de92007-09-25 17:54:57 -07001030
1031 /* reset TFD queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001032 for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02001033 il_wr(il, FH39_TCSR_CONFIG(txq_id), 0x0);
1034 il_poll_bit(il, FH39_TSSR_TX_STATUS,
Tomas Winklerbddadf82008-12-19 10:37:01 +08001035 FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
Zhu Yib481de92007-09-25 17:54:57 -07001036 1000);
1037 }
1038
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001039 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -07001040}
1041
Zhu Yib481de92007-09-25 17:54:57 -07001042/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001043 * il3945_hw_reg_adjust_power_by_temp
Ian Schrambbc58072007-10-25 17:15:28 +08001044 * return index delta into power gain settings table
1045*/
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001046static int il3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
Zhu Yib481de92007-09-25 17:54:57 -07001047{
1048 return (new_reading - old_reading) * (-11) / 100;
1049}
1050
1051/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001052 * il3945_hw_reg_temp_out_of_range - Keep temperature in sane range
Zhu Yib481de92007-09-25 17:54:57 -07001053 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001054static inline int il3945_hw_reg_temp_out_of_range(int temperature)
Zhu Yib481de92007-09-25 17:54:57 -07001055{
Tomas Winkler3ac7f142008-07-21 02:40:14 +03001056 return ((temperature < -260) || (temperature > 25)) ? 1 : 0;
Zhu Yib481de92007-09-25 17:54:57 -07001057}
1058
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001059int il3945_hw_get_temperature(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001060{
Stanislaw Gruszka841b2cc2011-08-24 15:14:03 +02001061 return _il_rd(il, CSR_UCODE_DRV_GP2);
Zhu Yib481de92007-09-25 17:54:57 -07001062}
1063
1064/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001065 * il3945_hw_reg_txpower_get_temperature
Ian Schrambbc58072007-10-25 17:15:28 +08001066 * get the current temperature by reading from NIC
1067*/
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001068static int il3945_hw_reg_txpower_get_temperature(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001069{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001070 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001071 int temperature;
1072
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001073 temperature = il3945_hw_get_temperature(il);
Zhu Yib481de92007-09-25 17:54:57 -07001074
1075 /* driver's okay range is -260 to +25.
1076 * human readable okay range is 0 to +285 */
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001077 D_INFO("Temperature: %d\n", temperature + IL_TEMP_CONVERT);
Zhu Yib481de92007-09-25 17:54:57 -07001078
1079 /* handle insane temp reading */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001080 if (il3945_hw_reg_temp_out_of_range(temperature)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001081 IL_ERR("Error bad temperature value %d\n", temperature);
Zhu Yib481de92007-09-25 17:54:57 -07001082
1083 /* if really really hot(?),
1084 * substitute the 3rd band/group's temp measured at factory */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001085 if (il->last_temperature > 100)
Samuel Ortize6148912009-01-23 13:45:15 -08001086 temperature = eeprom->groups[2].temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001087 else /* else use most recent "sane" value from driver */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001088 temperature = il->last_temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001089 }
1090
1091 return temperature; /* raw, not "human readable" */
1092}
1093
1094/* Adjust Txpower only if temperature variance is greater than threshold.
1095 *
1096 * Both are lower than older versions' 9 degrees */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001097#define IL_TEMPERATURE_LIMIT_TIMER 6
Zhu Yib481de92007-09-25 17:54:57 -07001098
1099/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001100 * il3945_is_temp_calib_needed - determines if new calibration is needed
Zhu Yib481de92007-09-25 17:54:57 -07001101 *
1102 * records new temperature in tx_mgr->temperature.
1103 * replaces tx_mgr->last_temperature *only* if calib needed
1104 * (assumes caller will actually do the calibration!). */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001105static int il3945_is_temp_calib_needed(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001106{
1107 int temp_diff;
1108
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001109 il->temperature = il3945_hw_reg_txpower_get_temperature(il);
1110 temp_diff = il->temperature - il->last_temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001111
1112 /* get absolute value */
1113 if (temp_diff < 0) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001114 D_POWER("Getting cooler, delta %d,\n", temp_diff);
Zhu Yib481de92007-09-25 17:54:57 -07001115 temp_diff = -temp_diff;
1116 } else if (temp_diff == 0)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001117 D_POWER("Same temp,\n");
Zhu Yib481de92007-09-25 17:54:57 -07001118 else
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001119 D_POWER("Getting warmer, delta %d,\n", temp_diff);
Zhu Yib481de92007-09-25 17:54:57 -07001120
1121 /* if we don't need calibration, *don't* update last_temperature */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001122 if (temp_diff < IL_TEMPERATURE_LIMIT_TIMER) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001123 D_POWER("Timed thermal calib not needed\n");
Zhu Yib481de92007-09-25 17:54:57 -07001124 return 0;
1125 }
1126
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001127 D_POWER("Timed thermal calib needed\n");
Zhu Yib481de92007-09-25 17:54:57 -07001128
1129 /* assume that caller will actually do calib ...
1130 * update the "last temperature" value */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001131 il->last_temperature = il->temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001132 return 1;
1133}
1134
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001135#define IL_MAX_GAIN_ENTRIES 78
1136#define IL_CCK_FROM_OFDM_POWER_DIFF -5
1137#define IL_CCK_FROM_OFDM_INDEX_DIFF (10)
Zhu Yib481de92007-09-25 17:54:57 -07001138
1139/* radio and DSP power table, each step is 1/2 dB.
1140 * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001141static struct il3945_tx_power power_gain_table[2][IL_MAX_GAIN_ENTRIES] = {
Zhu Yib481de92007-09-25 17:54:57 -07001142 {
1143 {251, 127}, /* 2.4 GHz, highest power */
1144 {251, 127},
1145 {251, 127},
1146 {251, 127},
1147 {251, 125},
1148 {251, 110},
1149 {251, 105},
1150 {251, 98},
1151 {187, 125},
1152 {187, 115},
1153 {187, 108},
1154 {187, 99},
1155 {243, 119},
1156 {243, 111},
1157 {243, 105},
1158 {243, 97},
1159 {243, 92},
1160 {211, 106},
1161 {211, 100},
1162 {179, 120},
1163 {179, 113},
1164 {179, 107},
1165 {147, 125},
1166 {147, 119},
1167 {147, 112},
1168 {147, 106},
1169 {147, 101},
1170 {147, 97},
1171 {147, 91},
1172 {115, 107},
1173 {235, 121},
1174 {235, 115},
1175 {235, 109},
1176 {203, 127},
1177 {203, 121},
1178 {203, 115},
1179 {203, 108},
1180 {203, 102},
1181 {203, 96},
1182 {203, 92},
1183 {171, 110},
1184 {171, 104},
1185 {171, 98},
1186 {139, 116},
1187 {227, 125},
1188 {227, 119},
1189 {227, 113},
1190 {227, 107},
1191 {227, 101},
1192 {227, 96},
1193 {195, 113},
1194 {195, 106},
1195 {195, 102},
1196 {195, 95},
1197 {163, 113},
1198 {163, 106},
1199 {163, 102},
1200 {163, 95},
1201 {131, 113},
1202 {131, 106},
1203 {131, 102},
1204 {131, 95},
1205 {99, 113},
1206 {99, 106},
1207 {99, 102},
1208 {99, 95},
1209 {67, 113},
1210 {67, 106},
1211 {67, 102},
1212 {67, 95},
1213 {35, 113},
1214 {35, 106},
1215 {35, 102},
1216 {35, 95},
1217 {3, 113},
1218 {3, 106},
1219 {3, 102},
1220 {3, 95} }, /* 2.4 GHz, lowest power */
1221 {
1222 {251, 127}, /* 5.x GHz, highest power */
1223 {251, 120},
1224 {251, 114},
1225 {219, 119},
1226 {219, 101},
1227 {187, 113},
1228 {187, 102},
1229 {155, 114},
1230 {155, 103},
1231 {123, 117},
1232 {123, 107},
1233 {123, 99},
1234 {123, 92},
1235 {91, 108},
1236 {59, 125},
1237 {59, 118},
1238 {59, 109},
1239 {59, 102},
1240 {59, 96},
1241 {59, 90},
1242 {27, 104},
1243 {27, 98},
1244 {27, 92},
1245 {115, 118},
1246 {115, 111},
1247 {115, 104},
1248 {83, 126},
1249 {83, 121},
1250 {83, 113},
1251 {83, 105},
1252 {83, 99},
1253 {51, 118},
1254 {51, 111},
1255 {51, 104},
1256 {51, 98},
1257 {19, 116},
1258 {19, 109},
1259 {19, 102},
1260 {19, 98},
1261 {19, 93},
1262 {171, 113},
1263 {171, 107},
1264 {171, 99},
1265 {139, 120},
1266 {139, 113},
1267 {139, 107},
1268 {139, 99},
1269 {107, 120},
1270 {107, 113},
1271 {107, 107},
1272 {107, 99},
1273 {75, 120},
1274 {75, 113},
1275 {75, 107},
1276 {75, 99},
1277 {43, 120},
1278 {43, 113},
1279 {43, 107},
1280 {43, 99},
1281 {11, 120},
1282 {11, 113},
1283 {11, 107},
1284 {11, 99},
1285 {131, 107},
1286 {131, 99},
1287 {99, 120},
1288 {99, 113},
1289 {99, 107},
1290 {99, 99},
1291 {67, 120},
1292 {67, 113},
1293 {67, 107},
1294 {67, 99},
1295 {35, 120},
1296 {35, 113},
1297 {35, 107},
1298 {35, 99},
1299 {3, 120} } /* 5.x GHz, lowest power */
1300};
1301
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001302static inline u8 il3945_hw_reg_fix_power_index(int index)
Zhu Yib481de92007-09-25 17:54:57 -07001303{
1304 if (index < 0)
1305 return 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001306 if (index >= IL_MAX_GAIN_ENTRIES)
1307 return IL_MAX_GAIN_ENTRIES - 1;
Zhu Yib481de92007-09-25 17:54:57 -07001308 return (u8) index;
1309}
1310
1311/* Kick off thermal recalibration check every 60 seconds */
1312#define REG_RECALIB_PERIOD (60)
1313
1314/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001315 * il3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
Zhu Yib481de92007-09-25 17:54:57 -07001316 *
1317 * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
1318 * or 6 Mbit (OFDM) rates.
1319 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001320static void il3945_hw_reg_set_scan_power(struct il_priv *il, u32 scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07001321 s32 rate_index, const s8 *clip_pwrs,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001322 struct il_channel_info *ch_info,
Zhu Yib481de92007-09-25 17:54:57 -07001323 int band_index)
1324{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001325 struct il3945_scan_power_info *scan_power_info;
Zhu Yib481de92007-09-25 17:54:57 -07001326 s8 power;
1327 u8 power_index;
1328
1329 scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
1330
1331 /* use this channel group's 6Mbit clipping/saturation pwr,
1332 * but cap at regulatory scan power restriction (set during init
1333 * based on eeprom channel data) for this channel. */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001334 power = min(ch_info->scan_power, clip_pwrs[IL_RATE_6M_INDEX_TABLE]);
Zhu Yib481de92007-09-25 17:54:57 -07001335
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001336 power = min(power, il->tx_power_user_lmt);
Zhu Yib481de92007-09-25 17:54:57 -07001337 scan_power_info->requested_power = power;
1338
1339 /* find difference between new scan *power* and current "normal"
1340 * Tx *power* for 6Mb. Use this difference (x2) to adjust the
1341 * current "normal" temperature-compensated Tx power *index* for
1342 * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
1343 * *index*. */
1344 power_index = ch_info->power_info[rate_index].power_table_index
1345 - (power - ch_info->power_info
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001346 [IL_RATE_6M_INDEX_TABLE].requested_power) * 2;
Zhu Yib481de92007-09-25 17:54:57 -07001347
1348 /* store reference index that we use when adjusting *all* scan
1349 * powers. So we can accommodate user (all channel) or spectrum
1350 * management (single channel) power changes "between" temperature
1351 * feedback compensation procedures.
1352 * don't force fit this reference index into gain table; it may be a
1353 * negative number. This will help avoid errors when we're at
1354 * the lower bounds (highest gains, for warmest temperatures)
1355 * of the table. */
1356
1357 /* don't exceed table bounds for "real" setting */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001358 power_index = il3945_hw_reg_fix_power_index(power_index);
Zhu Yib481de92007-09-25 17:54:57 -07001359
1360 scan_power_info->power_table_index = power_index;
1361 scan_power_info->tpc.tx_gain =
1362 power_gain_table[band_index][power_index].tx_gain;
1363 scan_power_info->tpc.dsp_atten =
1364 power_gain_table[band_index][power_index].dsp_atten;
1365}
1366
1367/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001368 * il3945_send_tx_power - fill in Tx Power command with gain settings
Zhu Yib481de92007-09-25 17:54:57 -07001369 *
1370 * Configures power settings for all rates for the current channel,
1371 * using values from channel info struct, and send to NIC
1372 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001373static int il3945_send_tx_power(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001374{
Mohamed Abbas14577f22007-11-12 11:37:42 +08001375 int rate_idx, i;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001376 const struct il_channel_info *ch_info = NULL;
1377 struct il3945_txpowertable_cmd txpower = {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001378 .channel = il->contexts[IL_RXON_CTX_BSS].active.channel,
Zhu Yib481de92007-09-25 17:54:57 -07001379 };
Johannes Berg246ed352010-08-23 10:46:32 +02001380 u16 chan;
1381
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001382 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &il->status),
Stanislaw Gruszka4beeba72010-10-25 10:34:50 +02001383 "TX Power requested while scanning!\n"))
1384 return -EAGAIN;
1385
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001386 chan = le16_to_cpu(il->contexts[IL_RXON_CTX_BSS].active.channel);
Zhu Yib481de92007-09-25 17:54:57 -07001387
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001388 txpower.band = (il->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
1389 ch_info = il_get_channel_info(il, il->band, chan);
Zhu Yib481de92007-09-25 17:54:57 -07001390 if (!ch_info) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001391 IL_ERR(
Winkler, Tomas15b16872008-12-19 10:37:33 +08001392 "Failed to get channel info for channel %d [%d]\n",
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001393 chan, il->band);
Zhu Yib481de92007-09-25 17:54:57 -07001394 return -EINVAL;
1395 }
1396
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001397 if (!il_is_channel_valid(ch_info)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001398 D_POWER("Not calling TX_PWR_TABLE_CMD on "
Zhu Yib481de92007-09-25 17:54:57 -07001399 "non-Tx channel.\n");
1400 return 0;
1401 }
1402
1403 /* fill cmd with power settings for all rates for current channel */
Mohamed Abbas14577f22007-11-12 11:37:42 +08001404 /* Fill OFDM rate */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001405 for (rate_idx = IL_FIRST_OFDM_RATE, i = 0;
Samuel Ortizd9829a62008-12-19 10:37:12 +08001406 rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
Mohamed Abbas14577f22007-11-12 11:37:42 +08001407
1408 txpower.power[i].tpc = ch_info->power_info[i].tpc;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001409 txpower.power[i].rate = il3945_rates[rate_idx].plcp;
Zhu Yib481de92007-09-25 17:54:57 -07001410
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001411 D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
Zhu Yib481de92007-09-25 17:54:57 -07001412 le16_to_cpu(txpower.channel),
1413 txpower.band,
Mohamed Abbas14577f22007-11-12 11:37:42 +08001414 txpower.power[i].tpc.tx_gain,
1415 txpower.power[i].tpc.dsp_atten,
1416 txpower.power[i].rate);
1417 }
1418 /* Fill CCK rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001419 for (rate_idx = IL_FIRST_CCK_RATE;
1420 rate_idx <= IL_LAST_CCK_RATE; rate_idx++, i++) {
Mohamed Abbas14577f22007-11-12 11:37:42 +08001421 txpower.power[i].tpc = ch_info->power_info[i].tpc;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001422 txpower.power[i].rate = il3945_rates[rate_idx].plcp;
Mohamed Abbas14577f22007-11-12 11:37:42 +08001423
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001424 D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
Mohamed Abbas14577f22007-11-12 11:37:42 +08001425 le16_to_cpu(txpower.channel),
1426 txpower.band,
1427 txpower.power[i].tpc.tx_gain,
1428 txpower.power[i].tpc.dsp_atten,
1429 txpower.power[i].rate);
Zhu Yib481de92007-09-25 17:54:57 -07001430 }
1431
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001432 return il_send_cmd_pdu(il, REPLY_TX_PWR_TABLE_CMD,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001433 sizeof(struct il3945_txpowertable_cmd),
Samuel Ortiz518099a2009-01-19 15:30:27 -08001434 &txpower);
Zhu Yib481de92007-09-25 17:54:57 -07001435
1436}
1437
1438/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001439 * il3945_hw_reg_set_new_power - Configures power tables at new levels
Zhu Yib481de92007-09-25 17:54:57 -07001440 * @ch_info: Channel to update. Uses power_info.requested_power.
1441 *
1442 * Replace requested_power and base_power_index ch_info fields for
1443 * one channel.
1444 *
1445 * Called if user or spectrum management changes power preferences.
1446 * Takes into account h/w and modulation limitations (clip power).
1447 *
1448 * This does *not* send anything to NIC, just sets up ch_info for one channel.
1449 *
1450 * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
1451 * properly fill out the scan powers, and actual h/w gain settings,
1452 * and send changes to NIC
1453 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001454static int il3945_hw_reg_set_new_power(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001455 struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001456{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001457 struct il3945_channel_power_info *power_info;
Zhu Yib481de92007-09-25 17:54:57 -07001458 int power_changed = 0;
1459 int i;
1460 const s8 *clip_pwrs;
1461 int power;
1462
1463 /* Get this chnlgrp's rate-to-max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001464 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07001465
1466 /* Get this channel's rate-to-current-power settings table */
1467 power_info = ch_info->power_info;
1468
1469 /* update OFDM Txpower settings */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001470 for (i = IL_RATE_6M_INDEX_TABLE; i <= IL_RATE_54M_INDEX_TABLE;
Zhu Yib481de92007-09-25 17:54:57 -07001471 i++, ++power_info) {
1472 int delta_idx;
1473
1474 /* limit new power to be no more than h/w capability */
1475 power = min(ch_info->curr_txpow, clip_pwrs[i]);
1476 if (power == power_info->requested_power)
1477 continue;
1478
1479 /* find difference between old and new requested powers,
1480 * update base (non-temp-compensated) power index */
1481 delta_idx = (power - power_info->requested_power) * 2;
1482 power_info->base_power_index -= delta_idx;
1483
1484 /* save new requested power value */
1485 power_info->requested_power = power;
1486
1487 power_changed = 1;
1488 }
1489
1490 /* update CCK Txpower settings, based on OFDM 12M setting ...
1491 * ... all CCK power settings for a given channel are the *same*. */
1492 if (power_changed) {
1493 power =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001494 ch_info->power_info[IL_RATE_12M_INDEX_TABLE].
1495 requested_power + IL_CCK_FROM_OFDM_POWER_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07001496
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001497 /* do all CCK rates' il3945_channel_power_info structures */
1498 for (i = IL_RATE_1M_INDEX_TABLE; i <= IL_RATE_11M_INDEX_TABLE; i++) {
Zhu Yib481de92007-09-25 17:54:57 -07001499 power_info->requested_power = power;
1500 power_info->base_power_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001501 ch_info->power_info[IL_RATE_12M_INDEX_TABLE].
1502 base_power_index + IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07001503 ++power_info;
1504 }
1505 }
1506
1507 return 0;
1508}
1509
1510/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001511 * il3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
Zhu Yib481de92007-09-25 17:54:57 -07001512 *
1513 * NOTE: Returned power limit may be less (but not more) than requested,
1514 * based strictly on regulatory (eeprom and spectrum mgt) limitations
1515 * (no consideration for h/w clipping limitations).
1516 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001517static int il3945_hw_reg_get_ch_txpower_limit(struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001518{
1519 s8 max_power;
1520
1521#if 0
1522 /* if we're using TGd limits, use lower of TGd or EEPROM */
1523 if (ch_info->tgd_data.max_power != 0)
1524 max_power = min(ch_info->tgd_data.max_power,
1525 ch_info->eeprom.max_power_avg);
1526
1527 /* else just use EEPROM limits */
1528 else
1529#endif
1530 max_power = ch_info->eeprom.max_power_avg;
1531
1532 return min(max_power, ch_info->max_power_avg);
1533}
1534
1535/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001536 * il3945_hw_reg_comp_txpower_temp - Compensate for temperature
Zhu Yib481de92007-09-25 17:54:57 -07001537 *
1538 * Compensate txpower settings of *all* channels for temperature.
1539 * This only accounts for the difference between current temperature
1540 * and the factory calibration temperatures, and bases the new settings
1541 * on the channel's base_power_index.
1542 *
1543 * If RxOn is "associated", this sends the new Txpower to NIC!
1544 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001545static int il3945_hw_reg_comp_txpower_temp(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001546{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001547 struct il_channel_info *ch_info = NULL;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001548 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001549 int delta_index;
1550 const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
1551 u8 a_band;
1552 u8 rate_index;
1553 u8 scan_tbl_index;
1554 u8 i;
1555 int ref_temp;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001556 int temperature = il->temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001557
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001558 if (il->disable_tx_power_cal ||
1559 test_bit(STATUS_SCANNING, &il->status)) {
Wey-Yi Guy4e7033e2010-04-27 14:33:33 -07001560 /* do not perform tx power calibration */
1561 return 0;
1562 }
Zhu Yib481de92007-09-25 17:54:57 -07001563 /* set up new Tx power info for each and every channel, 2.4 and 5.x */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001564 for (i = 0; i < il->channel_count; i++) {
1565 ch_info = &il->channel_info[i];
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001566 a_band = il_is_channel_a_band(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001567
1568 /* Get this chnlgrp's factory calibration temperature */
Samuel Ortize6148912009-01-23 13:45:15 -08001569 ref_temp = (s16)eeprom->groups[ch_info->group_index].
Zhu Yib481de92007-09-25 17:54:57 -07001570 temperature;
1571
Tomas Winklera96a27f2008-10-23 23:48:56 -07001572 /* get power index adjustment based on current and factory
Zhu Yib481de92007-09-25 17:54:57 -07001573 * temps */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001574 delta_index = il3945_hw_reg_adjust_power_by_temp(temperature,
Zhu Yib481de92007-09-25 17:54:57 -07001575 ref_temp);
1576
1577 /* set tx power value for all rates, OFDM and CCK */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001578 for (rate_index = 0; rate_index < IL_RATE_COUNT_3945;
Zhu Yib481de92007-09-25 17:54:57 -07001579 rate_index++) {
1580 int power_idx =
1581 ch_info->power_info[rate_index].base_power_index;
1582
1583 /* temperature compensate */
1584 power_idx += delta_index;
1585
1586 /* stay within table range */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001587 power_idx = il3945_hw_reg_fix_power_index(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07001588 ch_info->power_info[rate_index].
1589 power_table_index = (u8) power_idx;
1590 ch_info->power_info[rate_index].tpc =
1591 power_gain_table[a_band][power_idx];
1592 }
1593
1594 /* Get this chnlgrp's rate-to-max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001595 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07001596
1597 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
1598 for (scan_tbl_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001599 scan_tbl_index < IL_NUM_SCAN_RATES; scan_tbl_index++) {
Zhu Yib481de92007-09-25 17:54:57 -07001600 s32 actual_index = (scan_tbl_index == 0) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001601 IL_RATE_1M_INDEX_TABLE : IL_RATE_6M_INDEX_TABLE;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001602 il3945_hw_reg_set_scan_power(il, scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07001603 actual_index, clip_pwrs,
1604 ch_info, a_band);
1605 }
1606 }
1607
1608 /* send Txpower command for current channel to ucode */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001609 return il->cfg->ops->lib->send_tx_power(il);
Zhu Yib481de92007-09-25 17:54:57 -07001610}
1611
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001612int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power)
Zhu Yib481de92007-09-25 17:54:57 -07001613{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001614 struct il_channel_info *ch_info;
Zhu Yib481de92007-09-25 17:54:57 -07001615 s8 max_power;
1616 u8 a_band;
1617 u8 i;
1618
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001619 if (il->tx_power_user_lmt == power) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001620 D_POWER("Requested Tx power same as current "
Zhu Yib481de92007-09-25 17:54:57 -07001621 "limit: %ddBm.\n", power);
1622 return 0;
1623 }
1624
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001625 D_POWER("Setting upper limit clamp to %ddBm.\n", power);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001626 il->tx_power_user_lmt = power;
Zhu Yib481de92007-09-25 17:54:57 -07001627
1628 /* set up new Tx powers for each and every channel, 2.4 and 5.x */
1629
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001630 for (i = 0; i < il->channel_count; i++) {
1631 ch_info = &il->channel_info[i];
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001632 a_band = il_is_channel_a_band(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001633
1634 /* find minimum power of all user and regulatory constraints
1635 * (does not consider h/w clipping limitations) */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001636 max_power = il3945_hw_reg_get_ch_txpower_limit(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001637 max_power = min(power, max_power);
1638 if (max_power != ch_info->curr_txpow) {
1639 ch_info->curr_txpow = max_power;
1640
1641 /* this considers the h/w clipping limitations */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001642 il3945_hw_reg_set_new_power(il, ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001643 }
1644 }
1645
1646 /* update txpower settings for all channels,
1647 * send to NIC if associated. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001648 il3945_is_temp_calib_needed(il);
1649 il3945_hw_reg_comp_txpower_temp(il);
Zhu Yib481de92007-09-25 17:54:57 -07001650
1651 return 0;
1652}
1653
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001654static int il3945_send_rxon_assoc(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001655 struct il_rxon_context *ctx)
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001656{
1657 int rc = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001658 struct il_rx_packet *pkt;
1659 struct il3945_rxon_assoc_cmd rxon_assoc;
1660 struct il_host_cmd cmd = {
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001661 .id = REPLY_RXON_ASSOC,
1662 .len = sizeof(rxon_assoc),
Johannes Bergc2acea82009-07-24 11:13:05 -07001663 .flags = CMD_WANT_SKB,
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001664 .data = &rxon_assoc,
1665 };
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001666 const struct il_rxon_cmd *rxon1 = &ctx->staging;
1667 const struct il_rxon_cmd *rxon2 = &ctx->active;
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001668
1669 if ((rxon1->flags == rxon2->flags) &&
1670 (rxon1->filter_flags == rxon2->filter_flags) &&
1671 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1672 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001673 D_INFO("Using current RXON_ASSOC. Not resending.\n");
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001674 return 0;
1675 }
1676
Johannes Berg246ed352010-08-23 10:46:32 +02001677 rxon_assoc.flags = ctx->staging.flags;
1678 rxon_assoc.filter_flags = ctx->staging.filter_flags;
1679 rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
1680 rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001681 rxon_assoc.reserved = 0;
1682
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001683 rc = il_send_cmd_sync(il, &cmd);
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001684 if (rc)
1685 return rc;
1686
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001687 pkt = (struct il_rx_packet *)cmd.reply_page;
1688 if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001689 IL_ERR("Bad return from REPLY_RXON_ASSOC command\n");
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001690 rc = -EIO;
1691 }
1692
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001693 il_free_pages(il, cmd.reply_page);
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001694
1695 return rc;
1696}
1697
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001698/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001699 * il3945_commit_rxon - commit staging_rxon to hardware
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001700 *
1701 * The RXON command in staging_rxon is committed to the hardware and
1702 * the active_rxon structure is updated with the new data. This
1703 * function correctly transitions out of the RXON_ASSOC_MSK state if
1704 * a HW tune is required based on the RXON structure changes.
1705 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001706int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001707{
1708 /* cast away the const for active_rxon in this function */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001709 struct il3945_rxon_cmd *active_rxon = (void *)&ctx->active;
1710 struct il3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001711 int rc = 0;
Johannes Berg246ed352010-08-23 10:46:32 +02001712 bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001713
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001714 if (test_bit(STATUS_EXIT_PENDING, &il->status))
Wey-Yi Guyadb90a02010-11-26 11:09:42 -08001715 return -EINVAL;
1716
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001717 if (!il_is_alive(il))
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001718 return -1;
1719
1720 /* always get timestamp with Rx frame */
1721 staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
1722
1723 /* select antenna */
1724 staging_rxon->flags &=
1725 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001726 staging_rxon->flags |= il3945_get_antenna_flags(il);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001727
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001728 rc = il_check_rxon_cmd(il, ctx);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001729 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001730 IL_ERR("Invalid RXON configuration. Not committing.\n");
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001731 return -EINVAL;
1732 }
1733
1734 /* If we don't need to send a full RXON, we can use
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001735 * il3945_rxon_assoc_cmd which is used to reconfigure filter
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001736 * and other flags for the current radio configuration. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001737 if (!il_full_rxon_required(il,
1738 &il->contexts[IL_RXON_CTX_BSS])) {
1739 rc = il_send_rxon_assoc(il,
1740 &il->contexts[IL_RXON_CTX_BSS]);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001741 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001742 IL_ERR("Error setting RXON_ASSOC "
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001743 "configuration (%d).\n", rc);
1744 return rc;
1745 }
1746
1747 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
Stanislaw Gruszka17e859a2011-07-27 15:37:43 +02001748 /*
1749 * We do not commit tx power settings while channel changing,
1750 * do it now if tx power changed.
1751 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001752 il_set_tx_power(il, il->tx_power_next, false);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001753 return 0;
1754 }
1755
1756 /* If we are currently associated and the new config requires
1757 * an RXON_ASSOC and the new config wants the associated mask enabled,
1758 * we must clear the associated from the active configuration
1759 * before we apply the new config */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001760 if (il_is_associated(il, IL_RXON_CTX_BSS) && new_assoc) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001761 D_INFO("Toggling associated bit on current RXON\n");
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001762 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1763
1764 /*
1765 * reserved4 and 5 could have been filled by the iwlcore code.
1766 * Let's clear them before pushing to the 3945.
1767 */
1768 active_rxon->reserved4 = 0;
1769 active_rxon->reserved5 = 0;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001770 rc = il_send_cmd_pdu(il, REPLY_RXON,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001771 sizeof(struct il3945_rxon_cmd),
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001772 &il->contexts[IL_RXON_CTX_BSS].active);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001773
1774 /* If the mask clearing failed then we set
1775 * active_rxon back to what it was previously */
1776 if (rc) {
1777 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001778 IL_ERR("Error clearing ASSOC_MSK on current "
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001779 "configuration (%d).\n", rc);
1780 return rc;
1781 }
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001782 il_clear_ucode_stations(il,
1783 &il->contexts[IL_RXON_CTX_BSS]);
1784 il_restore_stations(il,
1785 &il->contexts[IL_RXON_CTX_BSS]);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001786 }
1787
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001788 D_INFO("Sending RXON\n"
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001789 "* with%s RXON_FILTER_ASSOC_MSK\n"
1790 "* channel = %d\n"
1791 "* bssid = %pM\n",
1792 (new_assoc ? "" : "out"),
1793 le16_to_cpu(staging_rxon->channel),
1794 staging_rxon->bssid_addr);
1795
1796 /*
1797 * reserved4 and 5 could have been filled by the iwlcore code.
1798 * Let's clear them before pushing to the 3945.
1799 */
1800 staging_rxon->reserved4 = 0;
1801 staging_rxon->reserved5 = 0;
1802
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001803 il_set_rxon_hwcrypto(il, ctx, !il3945_mod_params.sw_crypto);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001804
1805 /* Apply the new configuration */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001806 rc = il_send_cmd_pdu(il, REPLY_RXON,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001807 sizeof(struct il3945_rxon_cmd),
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001808 staging_rxon);
1809 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001810 IL_ERR("Error setting new configuration (%d).\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001811 return rc;
1812 }
1813
1814 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1815
Reinette Chatre7e246192010-02-18 22:58:32 -08001816 if (!new_assoc) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001817 il_clear_ucode_stations(il,
1818 &il->contexts[IL_RXON_CTX_BSS]);
1819 il_restore_stations(il,
1820 &il->contexts[IL_RXON_CTX_BSS]);
Reinette Chatre7e246192010-02-18 22:58:32 -08001821 }
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001822
1823 /* If we issue a new RXON command which required a tune then we must
1824 * send a new TXPOWER command or we won't be able to Tx any frames */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001825 rc = il_set_tx_power(il, il->tx_power_next, true);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001826 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001827 IL_ERR("Error setting Tx power (%d).\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001828 return rc;
1829 }
1830
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001831 /* Init the hardware's rate fallback order based on the band */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001832 rc = il3945_init_hw_rate_table(il);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001833 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001834 IL_ERR("Error setting HW rate table: %02X\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001835 return -EIO;
1836 }
1837
1838 return 0;
1839}
1840
Zhu Yib481de92007-09-25 17:54:57 -07001841/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001842 * il3945_reg_txpower_periodic - called when time to check our temperature.
Zhu Yib481de92007-09-25 17:54:57 -07001843 *
1844 * -- reset periodic timer
1845 * -- see if temp has changed enough to warrant re-calibration ... if so:
1846 * -- correct coeffs for temp (can reset temp timer)
1847 * -- save this temp as "last",
1848 * -- send new set of gain settings to NIC
1849 * NOTE: This should continue working, even when we're not associated,
1850 * so we can keep our internal table of scan powers current. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001851void il3945_reg_txpower_periodic(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001852{
1853 /* This will kick in the "brute force"
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001854 * il3945_hw_reg_comp_txpower_temp() below */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001855 if (!il3945_is_temp_calib_needed(il))
Zhu Yib481de92007-09-25 17:54:57 -07001856 goto reschedule;
1857
1858 /* Set up a new set of temp-adjusted TxPowers, send to NIC.
1859 * This is based *only* on current temperature,
1860 * ignoring any previous power measurements */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001861 il3945_hw_reg_comp_txpower_temp(il);
Zhu Yib481de92007-09-25 17:54:57 -07001862
1863 reschedule:
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001864 queue_delayed_work(il->workqueue,
1865 &il->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ);
Zhu Yib481de92007-09-25 17:54:57 -07001866}
1867
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001868static void il3945_bg_reg_txpower_periodic(struct work_struct *work)
Zhu Yib481de92007-09-25 17:54:57 -07001869{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001870 struct il_priv *il = container_of(work, struct il_priv,
Johannes Bergee525d12010-01-21 06:09:28 -08001871 _3945.thermal_periodic.work);
Zhu Yib481de92007-09-25 17:54:57 -07001872
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001873 if (test_bit(STATUS_EXIT_PENDING, &il->status))
Zhu Yib481de92007-09-25 17:54:57 -07001874 return;
1875
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001876 mutex_lock(&il->mutex);
1877 il3945_reg_txpower_periodic(il);
1878 mutex_unlock(&il->mutex);
Zhu Yib481de92007-09-25 17:54:57 -07001879}
1880
1881/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001882 * il3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
Zhu Yib481de92007-09-25 17:54:57 -07001883 * for the channel.
1884 *
1885 * This function is used when initializing channel-info structs.
1886 *
1887 * NOTE: These channel groups do *NOT* match the bands above!
1888 * These channel groups are based on factory-tested channels;
1889 * on A-band, EEPROM's "group frequency" entries represent the top
1890 * channel in each group 1-4. Group 5 All B/G channels are in group 0.
1891 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001892static u16 il3945_hw_reg_get_ch_grp_index(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001893 const struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001894{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001895 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001896 struct il3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
Zhu Yib481de92007-09-25 17:54:57 -07001897 u8 group;
1898 u16 group_index = 0; /* based on factory calib frequencies */
1899 u8 grp_channel;
1900
1901 /* Find the group index for the channel ... don't use index 1(?) */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001902 if (il_is_channel_a_band(ch_info)) {
Zhu Yib481de92007-09-25 17:54:57 -07001903 for (group = 1; group < 5; group++) {
1904 grp_channel = ch_grp[group].group_channel;
1905 if (ch_info->channel <= grp_channel) {
1906 group_index = group;
1907 break;
1908 }
1909 }
1910 /* group 4 has a few channels *above* its factory cal freq */
1911 if (group == 5)
1912 group_index = 4;
1913 } else
1914 group_index = 0; /* 2.4 GHz, group 0 */
1915
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001916 D_POWER("Chnl %d mapped to grp %d\n", ch_info->channel,
Zhu Yib481de92007-09-25 17:54:57 -07001917 group_index);
1918 return group_index;
1919}
1920
1921/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001922 * il3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
Zhu Yib481de92007-09-25 17:54:57 -07001923 *
1924 * Interpolate to get nominal (i.e. at factory calibration temperature) index
1925 * into radio/DSP gain settings table for requested power.
1926 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001927static int il3945_hw_reg_get_matched_power_index(struct il_priv *il,
Zhu Yib481de92007-09-25 17:54:57 -07001928 s8 requested_power,
1929 s32 setting_index, s32 *new_index)
1930{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001931 const struct il3945_eeprom_txpower_group *chnl_grp = NULL;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001932 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001933 s32 index0, index1;
1934 s32 power = 2 * requested_power;
1935 s32 i;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001936 const struct il3945_eeprom_txpower_sample *samples;
Zhu Yib481de92007-09-25 17:54:57 -07001937 s32 gains0, gains1;
1938 s32 res;
1939 s32 denominator;
1940
Samuel Ortize6148912009-01-23 13:45:15 -08001941 chnl_grp = &eeprom->groups[setting_index];
Zhu Yib481de92007-09-25 17:54:57 -07001942 samples = chnl_grp->samples;
1943 for (i = 0; i < 5; i++) {
1944 if (power == samples[i].power) {
1945 *new_index = samples[i].gain_index;
1946 return 0;
1947 }
1948 }
1949
1950 if (power > samples[1].power) {
1951 index0 = 0;
1952 index1 = 1;
1953 } else if (power > samples[2].power) {
1954 index0 = 1;
1955 index1 = 2;
1956 } else if (power > samples[3].power) {
1957 index0 = 2;
1958 index1 = 3;
1959 } else {
1960 index0 = 3;
1961 index1 = 4;
1962 }
1963
1964 denominator = (s32) samples[index1].power - (s32) samples[index0].power;
1965 if (denominator == 0)
1966 return -EINVAL;
1967 gains0 = (s32) samples[index0].gain_index * (1 << 19);
1968 gains1 = (s32) samples[index1].gain_index * (1 << 19);
1969 res = gains0 + (gains1 - gains0) *
1970 ((s32) power - (s32) samples[index0].power) / denominator +
1971 (1 << 18);
1972 *new_index = res >> 19;
1973 return 0;
1974}
1975
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001976static void il3945_hw_reg_init_channel_groups(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001977{
1978 u32 i;
1979 s32 rate_index;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001980 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001981 const struct il3945_eeprom_txpower_group *group;
Zhu Yib481de92007-09-25 17:54:57 -07001982
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001983 D_POWER("Initializing factory calib info from EEPROM\n");
Zhu Yib481de92007-09-25 17:54:57 -07001984
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001985 for (i = 0; i < IL_NUM_TX_CALIB_GROUPS; i++) {
Zhu Yib481de92007-09-25 17:54:57 -07001986 s8 *clip_pwrs; /* table of power levels for each rate */
1987 s8 satur_pwr; /* saturation power for each chnl group */
Samuel Ortize6148912009-01-23 13:45:15 -08001988 group = &eeprom->groups[i];
Zhu Yib481de92007-09-25 17:54:57 -07001989
1990 /* sanity check on factory saturation power value */
1991 if (group->saturation_power < 40) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001992 IL_WARN("Error: saturation power is %d, "
Zhu Yib481de92007-09-25 17:54:57 -07001993 "less than minimum expected 40\n",
1994 group->saturation_power);
1995 return;
1996 }
1997
1998 /*
1999 * Derive requested power levels for each rate, based on
2000 * hardware capabilities (saturation power for band).
2001 * Basic value is 3dB down from saturation, with further
2002 * power reductions for highest 3 data rates. These
2003 * backoffs provide headroom for high rate modulation
2004 * power peaks, without too much distortion (clipping).
2005 */
2006 /* we'll fill in this array with h/w max power levels */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002007 clip_pwrs = (s8 *) il->_3945.clip_groups[i].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07002008
2009 /* divide factory saturation power by 2 to find -3dB level */
2010 satur_pwr = (s8) (group->saturation_power >> 1);
2011
2012 /* fill in channel group's nominal powers for each rate */
2013 for (rate_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002014 rate_index < IL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
Zhu Yib481de92007-09-25 17:54:57 -07002015 switch (rate_index) {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002016 case IL_RATE_36M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002017 if (i == 0) /* B/G */
2018 *clip_pwrs = satur_pwr;
2019 else /* A */
2020 *clip_pwrs = satur_pwr - 5;
2021 break;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002022 case IL_RATE_48M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002023 if (i == 0)
2024 *clip_pwrs = satur_pwr - 7;
2025 else
2026 *clip_pwrs = satur_pwr - 10;
2027 break;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002028 case IL_RATE_54M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002029 if (i == 0)
2030 *clip_pwrs = satur_pwr - 9;
2031 else
2032 *clip_pwrs = satur_pwr - 12;
2033 break;
2034 default:
2035 *clip_pwrs = satur_pwr;
2036 break;
2037 }
2038 }
2039 }
2040}
2041
2042/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002043 * il3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
Zhu Yib481de92007-09-25 17:54:57 -07002044 *
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002045 * Second pass (during init) to set up il->channel_info
Zhu Yib481de92007-09-25 17:54:57 -07002046 *
2047 * Set up Tx-power settings in our channel info database for each VALID
2048 * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
2049 * and current temperature.
2050 *
2051 * Since this is based on current temperature (at init time), these values may
2052 * not be valid for very long, but it gives us a starting/default point,
2053 * and allows us to active (i.e. using Tx) scan.
2054 *
2055 * This does *not* write values to NIC, just sets up our internal table.
2056 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002057int il3945_txpower_set_from_eeprom(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002058{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002059 struct il_channel_info *ch_info = NULL;
2060 struct il3945_channel_power_info *pwr_info;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002061 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07002062 int delta_index;
2063 u8 rate_index;
2064 u8 scan_tbl_index;
2065 const s8 *clip_pwrs; /* array of power levels for each rate */
2066 u8 gain, dsp_atten;
2067 s8 power;
2068 u8 pwr_index, base_pwr_index, a_band;
2069 u8 i;
2070 int temperature;
2071
2072 /* save temperature reference,
2073 * so we can determine next time to calibrate */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002074 temperature = il3945_hw_reg_txpower_get_temperature(il);
2075 il->last_temperature = temperature;
Zhu Yib481de92007-09-25 17:54:57 -07002076
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002077 il3945_hw_reg_init_channel_groups(il);
Zhu Yib481de92007-09-25 17:54:57 -07002078
2079 /* initialize Tx power info for each and every channel, 2.4 and 5.x */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002080 for (i = 0, ch_info = il->channel_info; i < il->channel_count;
Zhu Yib481de92007-09-25 17:54:57 -07002081 i++, ch_info++) {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002082 a_band = il_is_channel_a_band(ch_info);
2083 if (!il_is_channel_valid(ch_info))
Zhu Yib481de92007-09-25 17:54:57 -07002084 continue;
2085
2086 /* find this channel's channel group (*not* "band") index */
2087 ch_info->group_index =
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002088 il3945_hw_reg_get_ch_grp_index(il, ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07002089
2090 /* Get this chnlgrp's rate->max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002091 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07002092
2093 /* calculate power index *adjustment* value according to
2094 * diff between current temperature and factory temperature */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002095 delta_index = il3945_hw_reg_adjust_power_by_temp(temperature,
Samuel Ortize6148912009-01-23 13:45:15 -08002096 eeprom->groups[ch_info->group_index].
Zhu Yib481de92007-09-25 17:54:57 -07002097 temperature);
2098
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002099 D_POWER("Delta index for channel %d: %d [%d]\n",
Zhu Yib481de92007-09-25 17:54:57 -07002100 ch_info->channel, delta_index, temperature +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002101 IL_TEMP_CONVERT);
Zhu Yib481de92007-09-25 17:54:57 -07002102
2103 /* set tx power value for all OFDM rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002104 for (rate_index = 0; rate_index < IL_OFDM_RATES;
Zhu Yib481de92007-09-25 17:54:57 -07002105 rate_index++) {
John W. Linville25a4cce2009-01-12 14:44:52 -05002106 s32 uninitialized_var(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07002107 int rc;
2108
2109 /* use channel group's clip-power table,
2110 * but don't exceed channel's max power */
2111 s8 pwr = min(ch_info->max_power_avg,
2112 clip_pwrs[rate_index]);
2113
2114 pwr_info = &ch_info->power_info[rate_index];
2115
2116 /* get base (i.e. at factory-measured temperature)
2117 * power table index for this rate's power */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002118 rc = il3945_hw_reg_get_matched_power_index(il, pwr,
Zhu Yib481de92007-09-25 17:54:57 -07002119 ch_info->group_index,
2120 &power_idx);
2121 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002122 IL_ERR("Invalid power index\n");
Zhu Yib481de92007-09-25 17:54:57 -07002123 return rc;
2124 }
2125 pwr_info->base_power_index = (u8) power_idx;
2126
2127 /* temperature compensate */
2128 power_idx += delta_index;
2129
2130 /* stay within range of gain table */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002131 power_idx = il3945_hw_reg_fix_power_index(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07002132
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002133 /* fill 1 OFDM rate's il3945_channel_power_info struct */
Zhu Yib481de92007-09-25 17:54:57 -07002134 pwr_info->requested_power = pwr;
2135 pwr_info->power_table_index = (u8) power_idx;
2136 pwr_info->tpc.tx_gain =
2137 power_gain_table[a_band][power_idx].tx_gain;
2138 pwr_info->tpc.dsp_atten =
2139 power_gain_table[a_band][power_idx].dsp_atten;
2140 }
2141
2142 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002143 pwr_info = &ch_info->power_info[IL_RATE_12M_INDEX_TABLE];
Zhu Yib481de92007-09-25 17:54:57 -07002144 power = pwr_info->requested_power +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002145 IL_CCK_FROM_OFDM_POWER_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002146 pwr_index = pwr_info->power_table_index +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002147 IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002148 base_pwr_index = pwr_info->base_power_index +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002149 IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002150
2151 /* stay within table range */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002152 pwr_index = il3945_hw_reg_fix_power_index(pwr_index);
Zhu Yib481de92007-09-25 17:54:57 -07002153 gain = power_gain_table[a_band][pwr_index].tx_gain;
2154 dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
2155
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002156 /* fill each CCK rate's il3945_channel_power_info structure
Zhu Yib481de92007-09-25 17:54:57 -07002157 * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
2158 * NOTE: CCK rates start at end of OFDM rates! */
Mohamed Abbas14577f22007-11-12 11:37:42 +08002159 for (rate_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002160 rate_index < IL_CCK_RATES; rate_index++) {
2161 pwr_info = &ch_info->power_info[rate_index+IL_OFDM_RATES];
Zhu Yib481de92007-09-25 17:54:57 -07002162 pwr_info->requested_power = power;
2163 pwr_info->power_table_index = pwr_index;
2164 pwr_info->base_power_index = base_pwr_index;
2165 pwr_info->tpc.tx_gain = gain;
2166 pwr_info->tpc.dsp_atten = dsp_atten;
2167 }
2168
2169 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
2170 for (scan_tbl_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002171 scan_tbl_index < IL_NUM_SCAN_RATES; scan_tbl_index++) {
Zhu Yib481de92007-09-25 17:54:57 -07002172 s32 actual_index = (scan_tbl_index == 0) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002173 IL_RATE_1M_INDEX_TABLE : IL_RATE_6M_INDEX_TABLE;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002174 il3945_hw_reg_set_scan_power(il, scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07002175 actual_index, clip_pwrs, ch_info, a_band);
2176 }
2177 }
2178
2179 return 0;
2180}
2181
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002182int il3945_hw_rxq_stop(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002183{
2184 int rc;
Zhu Yib481de92007-09-25 17:54:57 -07002185
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002186 il_wr(il, FH39_RCSR_CONFIG(0), 0);
2187 rc = il_poll_bit(il, FH39_RSSR_STATUS,
Tomas Winklerbddadf82008-12-19 10:37:01 +08002188 FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
Zhu Yib481de92007-09-25 17:54:57 -07002189 if (rc < 0)
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002190 IL_ERR("Can't stop Rx DMA.\n");
Zhu Yib481de92007-09-25 17:54:57 -07002191
Zhu Yib481de92007-09-25 17:54:57 -07002192 return 0;
2193}
2194
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002195int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq)
Zhu Yib481de92007-09-25 17:54:57 -07002196{
Zhu Yib481de92007-09-25 17:54:57 -07002197 int txq_id = txq->q.id;
2198
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002199 struct il3945_shared *shared_data = il->_3945.shared_virt;
Zhu Yib481de92007-09-25 17:54:57 -07002200
2201 shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
2202
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002203 il_wr(il, FH39_CBCC_CTRL(txq_id), 0);
2204 il_wr(il, FH39_CBCC_BASE(txq_id), 0);
Zhu Yib481de92007-09-25 17:54:57 -07002205
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002206 il_wr(il, FH39_TCSR_CONFIG(txq_id),
Tomas Winklerbddadf82008-12-19 10:37:01 +08002207 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
2208 FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
2209 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
2210 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
2211 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
Zhu Yib481de92007-09-25 17:54:57 -07002212
2213 /* fake read to flush all prev. writes */
Stanislaw Gruszka841b2cc2011-08-24 15:14:03 +02002214 _il_rd(il, FH39_TSSR_CBB_BASE);
Zhu Yib481de92007-09-25 17:54:57 -07002215
2216 return 0;
2217}
2218
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002219/*
2220 * HCMD utils
2221 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002222static u16 il3945_get_hcmd_size(u8 cmd_id, u16 len)
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002223{
2224 switch (cmd_id) {
2225 case REPLY_RXON:
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002226 return sizeof(struct il3945_rxon_cmd);
Winkler, Tomasd25aabb2009-01-27 14:27:58 -08002227 case POWER_TABLE_CMD:
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002228 return sizeof(struct il3945_powertable_cmd);
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002229 default:
2230 return len;
2231 }
2232}
2233
Tomas Winklerc587de02009-06-03 11:44:07 -07002234
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002235static u16 il3945_build_addsta_hcmd(const struct il_addsta_cmd *cmd,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -08002236 u8 *data)
Samuel Ortiz17f841c2009-01-23 13:45:20 -08002237{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002238 struct il3945_addsta_cmd *addsta = (struct il3945_addsta_cmd *)data;
Tomas Winklerc587de02009-06-03 11:44:07 -07002239 addsta->mode = cmd->mode;
2240 memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002241 memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo));
Tomas Winklerc587de02009-06-03 11:44:07 -07002242 addsta->station_flags = cmd->station_flags;
2243 addsta->station_flags_msk = cmd->station_flags_msk;
2244 addsta->tid_disable_tx = cpu_to_le16(0);
2245 addsta->rate_n_flags = cmd->rate_n_flags;
2246 addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
2247 addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
2248 addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
2249
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002250 return (u16)sizeof(struct il3945_addsta_cmd);
Samuel Ortiz17f841c2009-01-23 13:45:20 -08002251}
2252
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002253static int il3945_add_bssid_station(struct il_priv *il,
Johannes Berga30e3112010-09-22 18:02:01 +02002254 const u8 *addr, u8 *sta_id_r)
2255{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002256 struct il_rxon_context *ctx = &il->contexts[IL_RXON_CTX_BSS];
Johannes Berga30e3112010-09-22 18:02:01 +02002257 int ret;
2258 u8 sta_id;
2259 unsigned long flags;
2260
2261 if (sta_id_r)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002262 *sta_id_r = IL_INVALID_STATION;
Johannes Berga30e3112010-09-22 18:02:01 +02002263
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002264 ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
Johannes Berga30e3112010-09-22 18:02:01 +02002265 if (ret) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002266 IL_ERR("Unable to add station %pM\n", addr);
Johannes Berga30e3112010-09-22 18:02:01 +02002267 return ret;
2268 }
2269
2270 if (sta_id_r)
2271 *sta_id_r = sta_id;
2272
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002273 spin_lock_irqsave(&il->sta_lock, flags);
2274 il->stations[sta_id].used |= IL_STA_LOCAL;
2275 spin_unlock_irqrestore(&il->sta_lock, flags);
Johannes Berga30e3112010-09-22 18:02:01 +02002276
2277 return 0;
2278}
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002279static int il3945_manage_ibss_station(struct il_priv *il,
Johannes Berg1fa61b22010-04-28 08:44:52 -07002280 struct ieee80211_vif *vif, bool add)
2281{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002282 struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
Johannes Berg1fa61b22010-04-28 08:44:52 -07002283 int ret;
2284
Johannes Berg1fa61b22010-04-28 08:44:52 -07002285 if (add) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002286 ret = il3945_add_bssid_station(il, vif->bss_conf.bssid,
Johannes Berga30e3112010-09-22 18:02:01 +02002287 &vif_priv->ibss_bssid_sta_id);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002288 if (ret)
2289 return ret;
2290
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002291 il3945_sync_sta(il, vif_priv->ibss_bssid_sta_id,
2292 (il->band == IEEE80211_BAND_5GHZ) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002293 IL_RATE_6M_PLCP : IL_RATE_1M_PLCP);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002294 il3945_rate_scale_init(il->hw, vif_priv->ibss_bssid_sta_id);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002295
2296 return 0;
2297 }
2298
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002299 return il_remove_station(il, vif_priv->ibss_bssid_sta_id,
Johannes Bergfd1af152010-04-30 11:30:43 -07002300 vif->bss_conf.bssid);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002301}
Tomas Winklerc587de02009-06-03 11:44:07 -07002302
Zhu Yib481de92007-09-25 17:54:57 -07002303/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002304 * il3945_init_hw_rate_table - Initialize the hardware rate fallback table
Zhu Yib481de92007-09-25 17:54:57 -07002305 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002306int il3945_init_hw_rate_table(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002307{
Mohamed Abbas14577f22007-11-12 11:37:42 +08002308 int rc, i, index, prev_index;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002309 struct il3945_rate_scaling_cmd rate_cmd = {
Zhu Yib481de92007-09-25 17:54:57 -07002310 .reserved = {0, 0, 0},
2311 };
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002312 struct il3945_rate_scaling_info *table = rate_cmd.table;
Zhu Yib481de92007-09-25 17:54:57 -07002313
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002314 for (i = 0; i < ARRAY_SIZE(il3945_rates); i++) {
2315 index = il3945_rates[i].table_rs_index;
Mohamed Abbas14577f22007-11-12 11:37:42 +08002316
2317 table[index].rate_n_flags =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002318 il3945_hw_set_rate_n_flags(il3945_rates[i].plcp, 0);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002319 table[index].try_cnt = il->retry_rate;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002320 prev_index = il3945_get_prev_ieee_rate(i);
Abbas, Mohamed72627962008-12-05 07:58:37 -08002321 table[index].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002322 il3945_rates[prev_index].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002323 }
2324
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002325 switch (il->band) {
Johannes Berg8318d782008-01-24 19:38:38 +01002326 case IEEE80211_BAND_5GHZ:
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002327 D_RATE("Select A mode rate scale\n");
Zhu Yib481de92007-09-25 17:54:57 -07002328 /* If one of the following CCK rates is used,
2329 * have it fall back to the 6M OFDM rate */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002330 for (i = IL_RATE_1M_INDEX_TABLE;
2331 i <= IL_RATE_11M_INDEX_TABLE; i++)
Abbas, Mohamed72627962008-12-05 07:58:37 -08002332 table[i].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002333 il3945_rates[IL_FIRST_OFDM_RATE].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002334
2335 /* Don't fall back to CCK rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002336 table[IL_RATE_12M_INDEX_TABLE].next_rate_index =
2337 IL_RATE_9M_INDEX_TABLE;
Zhu Yib481de92007-09-25 17:54:57 -07002338
2339 /* Don't drop out of OFDM rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002340 table[IL_RATE_6M_INDEX_TABLE].next_rate_index =
2341 il3945_rates[IL_FIRST_OFDM_RATE].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002342 break;
2343
Johannes Berg8318d782008-01-24 19:38:38 +01002344 case IEEE80211_BAND_2GHZ:
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002345 D_RATE("Select B/G mode rate scale\n");
Zhu Yib481de92007-09-25 17:54:57 -07002346 /* If an OFDM rate is used, have it fall back to the
2347 * 1M CCK rates */
Zhu Yib481de92007-09-25 17:54:57 -07002348
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002349 if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) &&
2350 il_is_associated(il, IL_RXON_CTX_BSS)) {
Abbas, Mohamed72627962008-12-05 07:58:37 -08002351
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002352 index = IL_FIRST_CCK_RATE;
2353 for (i = IL_RATE_6M_INDEX_TABLE;
2354 i <= IL_RATE_54M_INDEX_TABLE; i++)
Abbas, Mohamed72627962008-12-05 07:58:37 -08002355 table[i].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002356 il3945_rates[index].table_rs_index;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002357
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002358 index = IL_RATE_11M_INDEX_TABLE;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002359 /* CCK shouldn't fall back to OFDM... */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002360 table[index].next_rate_index = IL_RATE_5M_INDEX_TABLE;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002361 }
Zhu Yib481de92007-09-25 17:54:57 -07002362 break;
2363
2364 default:
Johannes Berg8318d782008-01-24 19:38:38 +01002365 WARN_ON(1);
Zhu Yib481de92007-09-25 17:54:57 -07002366 break;
2367 }
2368
2369 /* Update the rate scaling for control frame Tx */
2370 rate_cmd.table_id = 0;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002371 rc = il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd),
Zhu Yib481de92007-09-25 17:54:57 -07002372 &rate_cmd);
2373 if (rc)
2374 return rc;
2375
2376 /* Update the rate scaling for data frame Tx */
2377 rate_cmd.table_id = 1;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002378 return il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd),
Zhu Yib481de92007-09-25 17:54:57 -07002379 &rate_cmd);
2380}
2381
Ben Cahill796083c2007-11-29 11:09:45 +08002382/* Called when initializing driver */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002383int il3945_hw_set_hw_params(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002384{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002385 memset((void *)&il->hw_params, 0,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002386 sizeof(struct il_hw_params));
Zhu Yib481de92007-09-25 17:54:57 -07002387
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002388 il->_3945.shared_virt =
2389 dma_alloc_coherent(&il->pci_dev->dev,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002390 sizeof(struct il3945_shared),
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002391 &il->_3945.shared_phys, GFP_KERNEL);
2392 if (!il->_3945.shared_virt) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002393 IL_ERR("failed to allocate pci memory\n");
Zhu Yib481de92007-09-25 17:54:57 -07002394 return -ENOMEM;
2395 }
2396
Abhijeet Kolekar21c02a12009-03-17 21:51:48 -07002397 /* Assign number of Usable TX queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002398 il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues;
Abhijeet Kolekar21c02a12009-03-17 21:51:48 -07002399
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002400 il->hw_params.tfd_size = sizeof(struct il3945_tfd);
2401 il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_3K);
2402 il->hw_params.max_rxq_size = RX_QUEUE_SIZE;
2403 il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
2404 il->hw_params.max_stations = IWL3945_STATION_COUNT;
2405 il->contexts[IL_RXON_CTX_BSS].bcast_sta_id = IWL3945_BROADCAST_ID;
Tomas Winkler3e82a822008-02-13 11:32:31 -08002406
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002407 il->sta_key_max_num = STA_KEY_MAX_NUM;
Johannes Bergc10afb62010-08-23 10:46:43 +02002408
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002409 il->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
2410 il->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
2411 il->hw_params.beacon_time_tsf_bits = IWL3945_EXT_BEACON_TIME_POS;
Winkler, Tomas141c43a2009-01-08 10:19:53 -08002412
Zhu Yib481de92007-09-25 17:54:57 -07002413 return 0;
2414}
2415
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002416unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002417 struct il3945_frame *frame, u8 rate)
Zhu Yib481de92007-09-25 17:54:57 -07002418{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002419 struct il3945_tx_beacon_cmd *tx_beacon_cmd;
Zhu Yib481de92007-09-25 17:54:57 -07002420 unsigned int frame_size;
2421
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002422 tx_beacon_cmd = (struct il3945_tx_beacon_cmd *)&frame->u;
Zhu Yib481de92007-09-25 17:54:57 -07002423 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
2424
Johannes Berga194e322010-08-27 08:53:46 -07002425 tx_beacon_cmd->tx.sta_id =
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002426 il->contexts[IL_RXON_CTX_BSS].bcast_sta_id;
Zhu Yib481de92007-09-25 17:54:57 -07002427 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2428
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002429 frame_size = il3945_fill_beacon_frame(il,
Zhu Yib481de92007-09-25 17:54:57 -07002430 tx_beacon_cmd->frame,
Zhu Yib481de92007-09-25 17:54:57 -07002431 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
2432
2433 BUG_ON(frame_size > MAX_MPDU_SIZE);
2434 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
2435
2436 tx_beacon_cmd->tx.rate = rate;
2437 tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
2438 TX_CMD_FLG_TSF_MSK);
2439
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002440 /* supp_rates[0] == OFDM start at IL_FIRST_OFDM_RATE*/
Mohamed Abbas14577f22007-11-12 11:37:42 +08002441 tx_beacon_cmd->tx.supp_rates[0] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002442 (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF;
Zhu Yib481de92007-09-25 17:54:57 -07002443
Zhu Yib481de92007-09-25 17:54:57 -07002444 tx_beacon_cmd->tx.supp_rates[1] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002445 (IL_CCK_BASIC_RATES_MASK & 0xF);
Zhu Yib481de92007-09-25 17:54:57 -07002446
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002447 return sizeof(struct il3945_tx_beacon_cmd) + frame_size;
Zhu Yib481de92007-09-25 17:54:57 -07002448}
2449
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002450void il3945_hw_rx_handler_setup(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002451{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002452 il->rx_handlers[REPLY_TX] = il3945_rx_reply_tx;
2453 il->rx_handlers[REPLY_3945_RX] = il3945_rx_reply_rx;
Zhu Yib481de92007-09-25 17:54:57 -07002454}
2455
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002456void il3945_hw_setup_deferred_work(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002457{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002458 INIT_DELAYED_WORK(&il->_3945.thermal_periodic,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002459 il3945_bg_reg_txpower_periodic);
Zhu Yib481de92007-09-25 17:54:57 -07002460}
2461
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002462void il3945_hw_cancel_deferred_work(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002463{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002464 cancel_delayed_work(&il->_3945.thermal_periodic);
Zhu Yib481de92007-09-25 17:54:57 -07002465}
2466
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002467/* check contents of special bootstrap uCode SRAM */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002468static int il3945_verify_bsm(struct il_priv *il)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002469 {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002470 __le32 *image = il->ucode_boot.v_addr;
2471 u32 len = il->ucode_boot.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002472 u32 reg;
2473 u32 val;
2474
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002475 D_INFO("Begin verify bsm\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002476
2477 /* verify BSM SRAM contents */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002478 val = il_rd_prph(il, BSM_WR_DWCOUNT_REG);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002479 for (reg = BSM_SRAM_LOWER_BOUND;
2480 reg < BSM_SRAM_LOWER_BOUND + len;
2481 reg += sizeof(u32), image++) {
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002482 val = il_rd_prph(il, reg);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002483 if (val != le32_to_cpu(*image)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002484 IL_ERR("BSM uCode verification failed at "
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002485 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
2486 BSM_SRAM_LOWER_BOUND,
2487 reg - BSM_SRAM_LOWER_BOUND, len,
2488 val, le32_to_cpu(*image));
2489 return -EIO;
2490 }
2491 }
2492
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002493 D_INFO("BSM bootstrap uCode image OK\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002494
2495 return 0;
2496}
2497
Samuel Ortize6148912009-01-23 13:45:15 -08002498
2499/******************************************************************************
2500 *
2501 * EEPROM related functions
2502 *
2503 ******************************************************************************/
2504
2505/*
2506 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
2507 * embedded controller) as EEPROM reader; each read is a series of pulses
2508 * to/from the EEPROM chip, not a single event, so even reads could conflict
2509 * if they weren't arbitrated by some ownership mechanism. Here, the driver
2510 * simply claims ownership, which should be safe when this function is called
2511 * (i.e. before loading uCode!).
2512 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002513static int il3945_eeprom_acquire_semaphore(struct il_priv *il)
Samuel Ortize6148912009-01-23 13:45:15 -08002514{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002515 _il_clear_bit(il, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
Samuel Ortize6148912009-01-23 13:45:15 -08002516 return 0;
2517}
2518
2519
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002520static void il3945_eeprom_release_semaphore(struct il_priv *il)
Samuel Ortize6148912009-01-23 13:45:15 -08002521{
2522 return;
2523}
2524
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002525 /**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002526 * il3945_load_bsm - Load bootstrap instructions
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002527 *
2528 * BSM operation:
2529 *
2530 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
2531 * in special SRAM that does not power down during RFKILL. When powering back
2532 * up after power-saving sleeps (or during initial uCode load), the BSM loads
2533 * the bootstrap program into the on-board processor, and starts it.
2534 *
2535 * The bootstrap program loads (via DMA) instructions and data for a new
2536 * program from host DRAM locations indicated by the host driver in the
2537 * BSM_DRAM_* registers. Once the new program is loaded, it starts
2538 * automatically.
2539 *
2540 * When initializing the NIC, the host driver points the BSM to the
2541 * "initialize" uCode image. This uCode sets up some internal data, then
2542 * notifies host via "initialize alive" that it is complete.
2543 *
2544 * The host then replaces the BSM_DRAM_* pointer values to point to the
2545 * normal runtime uCode instructions and a backup uCode data cache buffer
2546 * (filled initially with starting data values for the on-board processor),
2547 * then triggers the "initialize" uCode to load and launch the runtime uCode,
2548 * which begins normal operation.
2549 *
2550 * When doing a power-save shutdown, runtime uCode saves data SRAM into
2551 * the backup data cache in DRAM before SRAM is powered down.
2552 *
2553 * When powering back up, the BSM loads the bootstrap program. This reloads
2554 * the runtime uCode instructions and the backup data cache into SRAM,
2555 * and re-launches the runtime uCode from where it left off.
2556 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002557static int il3945_load_bsm(struct il_priv *il)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002558{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002559 __le32 *image = il->ucode_boot.v_addr;
2560 u32 len = il->ucode_boot.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002561 dma_addr_t pinst;
2562 dma_addr_t pdata;
2563 u32 inst_len;
2564 u32 data_len;
2565 int rc;
2566 int i;
2567 u32 done;
2568 u32 reg_offset;
2569
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002570 D_INFO("Begin load bsm\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002571
2572 /* make sure bootstrap program is no larger than BSM's SRAM size */
2573 if (len > IWL39_MAX_BSM_SIZE)
2574 return -EINVAL;
2575
2576 /* Tell bootstrap uCode where to find the "Initialize" uCode
2577 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002578 * NOTE: il3945_initialize_alive_start() will replace these values,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002579 * after the "initialize" uCode has run, to point to
2580 * runtime/protocol instructions and backup data cache. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002581 pinst = il->ucode_init.p_addr;
2582 pdata = il->ucode_init_data.p_addr;
2583 inst_len = il->ucode_init.len;
2584 data_len = il->ucode_init_data.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002585
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002586 il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
2587 il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
2588 il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
2589 il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002590
2591 /* Fill BSM memory with bootstrap instructions */
2592 for (reg_offset = BSM_SRAM_LOWER_BOUND;
2593 reg_offset < BSM_SRAM_LOWER_BOUND + len;
2594 reg_offset += sizeof(u32), image++)
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002595 _il_wr_prph(il, reg_offset,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002596 le32_to_cpu(*image));
2597
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002598 rc = il3945_verify_bsm(il);
Mohamed Abbasa8b50a02009-05-22 11:01:47 -07002599 if (rc)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002600 return rc;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002601
2602 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002603 il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0);
2604 il_wr_prph(il, BSM_WR_MEM_DST_REG,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002605 IWL39_RTC_INST_LOWER_BOUND);
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002606 il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002607
2608 /* Load bootstrap code into instruction SRAM now,
2609 * to prepare to load "initialize" uCode */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002610 il_wr_prph(il, BSM_WR_CTRL_REG,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002611 BSM_WR_CTRL_REG_BIT_START);
2612
2613 /* Wait for load of bootstrap uCode to finish */
2614 for (i = 0; i < 100; i++) {
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002615 done = il_rd_prph(il, BSM_WR_CTRL_REG);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002616 if (!(done & BSM_WR_CTRL_REG_BIT_START))
2617 break;
2618 udelay(10);
2619 }
2620 if (i < 100)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002621 D_INFO("BSM write complete, poll %d iterations\n", i);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002622 else {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002623 IL_ERR("BSM write did not complete!\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002624 return -EIO;
2625 }
2626
2627 /* Enable future boot loads whenever power management unit triggers it
2628 * (e.g. when powering back up after power-save shutdown) */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002629 il_wr_prph(il, BSM_WR_CTRL_REG,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002630 BSM_WR_CTRL_REG_BIT_START_EN);
2631
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002632 return 0;
2633}
2634
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002635static struct il_hcmd_ops il3945_hcmd = {
2636 .rxon_assoc = il3945_send_rxon_assoc,
2637 .commit_rxon = il3945_commit_rxon,
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07002638};
2639
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002640static struct il_lib_ops il3945_lib = {
2641 .txq_attach_buf_to_tfd = il3945_hw_txq_attach_buf_to_tfd,
2642 .txq_free_tfd = il3945_hw_txq_free_tfd,
2643 .txq_init = il3945_hw_tx_queue_init,
2644 .load_ucode = il3945_load_bsm,
2645 .dump_nic_error_log = il3945_dump_nic_error_log,
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +08002646 .apm_ops = {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002647 .init = il3945_apm_init,
2648 .config = il3945_nic_config,
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +08002649 },
Samuel Ortize6148912009-01-23 13:45:15 -08002650 .eeprom_ops = {
2651 .regulatory_bands = {
2652 EEPROM_REGULATORY_BAND_1_CHANNELS,
2653 EEPROM_REGULATORY_BAND_2_CHANNELS,
2654 EEPROM_REGULATORY_BAND_3_CHANNELS,
2655 EEPROM_REGULATORY_BAND_4_CHANNELS,
2656 EEPROM_REGULATORY_BAND_5_CHANNELS,
Wey-Yi Guy7aafef12009-08-07 15:41:38 -07002657 EEPROM_REGULATORY_BAND_NO_HT40,
2658 EEPROM_REGULATORY_BAND_NO_HT40,
Samuel Ortize6148912009-01-23 13:45:15 -08002659 },
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002660 .acquire_semaphore = il3945_eeprom_acquire_semaphore,
2661 .release_semaphore = il3945_eeprom_release_semaphore,
Samuel Ortize6148912009-01-23 13:45:15 -08002662 },
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002663 .send_tx_power = il3945_send_tx_power,
2664 .is_valid_rtc_data_addr = il3945_hw_valid_rtc_data_addr,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -07002665
2666 .debugfs_ops = {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002667 .rx_stats_read = il3945_ucode_rx_stats_read,
2668 .tx_stats_read = il3945_ucode_tx_stats_read,
2669 .general_stats_read = il3945_ucode_general_stats_read,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -07002670 },
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002671};
2672
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002673static const struct il_legacy_ops il3945_legacy_ops = {
2674 .post_associate = il3945_post_associate,
2675 .config_ap = il3945_config_ap,
2676 .manage_ibss_station = il3945_manage_ibss_station,
Johannes Berg2295c662010-10-23 09:15:41 -07002677};
2678
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002679static struct il_hcmd_utils_ops il3945_hcmd_utils = {
2680 .get_hcmd_size = il3945_get_hcmd_size,
2681 .build_addsta_hcmd = il3945_build_addsta_hcmd,
2682 .request_scan = il3945_request_scan,
2683 .post_scan = il3945_post_scan,
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002684};
2685
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002686static const struct il_ops il3945_ops = {
2687 .lib = &il3945_lib,
2688 .hcmd = &il3945_hcmd,
2689 .utils = &il3945_hcmd_utils,
2690 .led = &il3945_led_ops,
2691 .legacy = &il3945_legacy_ops,
2692 .ieee80211_ops = &il3945_hw_ops,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002693};
2694
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002695static struct il_base_params il3945_base_params = {
Samuel Ortize6148912009-01-23 13:45:15 -08002696 .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
Johannes Bergfd74d062010-10-12 02:26:13 -07002697 .num_of_queues = IWL39_NUM_QUEUES,
Ben Cahillfadb3582009-10-23 13:42:21 -07002698 .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
2699 .set_l0s = false,
2700 .use_bsm = true,
Wey-Yi Guyf2d0d0e2009-09-11 10:38:14 -07002701 .led_compensation = 64,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002702 .wd_timeout = IL_DEF_WD_TIMEOUT,
Tomas Winkler82b9a122008-03-04 18:09:30 -08002703};
2704
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002705static struct il_cfg il3945_bg_cfg = {
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002706 .name = "3945BG",
2707 .fw_name_pre = IWL3945_FW_PRE,
2708 .ucode_api_max = IWL3945_UCODE_API_MAX,
2709 .ucode_api_min = IWL3945_UCODE_API_MIN,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002710 .sku = IL_SKU_G,
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002711 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002712 .ops = &il3945_ops,
2713 .mod_params = &il3945_mod_params,
2714 .base_params = &il3945_base_params,
2715 .led_mode = IL_LED_BLINK,
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002716};
2717
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002718static struct il_cfg il3945_abg_cfg = {
Tomas Winkler82b9a122008-03-04 18:09:30 -08002719 .name = "3945ABG",
Reinette Chatrea0987a82008-12-02 12:14:06 -08002720 .fw_name_pre = IWL3945_FW_PRE,
2721 .ucode_api_max = IWL3945_UCODE_API_MAX,
2722 .ucode_api_min = IWL3945_UCODE_API_MIN,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002723 .sku = IL_SKU_A|IL_SKU_G,
Samuel Ortize6148912009-01-23 13:45:15 -08002724 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002725 .ops = &il3945_ops,
2726 .mod_params = &il3945_mod_params,
2727 .base_params = &il3945_base_params,
2728 .led_mode = IL_LED_BLINK,
Tomas Winkler82b9a122008-03-04 18:09:30 -08002729};
2730
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002731DEFINE_PCI_DEVICE_TABLE(il3945_hw_card_ids) = {
2732 {IL_PCI_DEVICE(0x4222, 0x1005, il3945_bg_cfg)},
2733 {IL_PCI_DEVICE(0x4222, 0x1034, il3945_bg_cfg)},
2734 {IL_PCI_DEVICE(0x4222, 0x1044, il3945_bg_cfg)},
2735 {IL_PCI_DEVICE(0x4227, 0x1014, il3945_bg_cfg)},
2736 {IL_PCI_DEVICE(0x4222, PCI_ANY_ID, il3945_abg_cfg)},
2737 {IL_PCI_DEVICE(0x4227, PCI_ANY_ID, il3945_abg_cfg)},
Zhu Yib481de92007-09-25 17:54:57 -07002738 {0}
2739};
2740
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002741MODULE_DEVICE_TABLE(pci, il3945_hw_card_ids);