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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 Gruszka232913b2011-08-26 10:45:16 +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
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100203#ifdef CONFIG_IWLEGACY_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) &&
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +0100256 il_is_associated(il)) {
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
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100284 BUG_ON(txq_id == IL39_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 Gruszka232913b2011-08-26 10:45:16 +0200296 if (il_queue_space(q) > q->low_mark && txq_id >= 0 &&
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100297 txq_id != IL39_CMD_QUEUE_NUM && il->mac80211_registered)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200298 il_wake_queue(il, txq);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800299}
300
301/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200302 * il3945_rx_reply_tx - Handle Tx response
Tomas Winkler91c066f2008-03-06 17:36:55 -0800303 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200304static void il3945_rx_reply_tx(struct il_priv *il,
Stanislaw Gruszkab73bb5f2011-08-26 14:37:54 +0200305 struct il_rx_buf *rxb)
Tomas Winkler91c066f2008-03-06 17:36:55 -0800306{
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +0200307 struct il_rx_pkt *pkt = rxb_addr(rxb);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800308 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
309 int txq_id = SEQ_TO_QUEUE(sequence);
310 int index = SEQ_TO_INDEX(sequence);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200311 struct il_tx_queue *txq = &il->txq[txq_id];
Johannes Berge039fa42008-05-15 12:55:29 +0200312 struct ieee80211_tx_info *info;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200313 struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
Tomas Winkler91c066f2008-03-06 17:36:55 -0800314 u32 status = le32_to_cpu(tx_resp->status);
315 int rate_idx;
Abbas, Mohamed74221d02008-12-02 12:14:03 -0800316 int fail;
Tomas Winkler91c066f2008-03-06 17:36:55 -0800317
Stanislaw Gruszka232913b2011-08-26 10:45:16 +0200318 if (index >= txq->q.n_bd || il_queue_used(&txq->q, index) == 0) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200319 IL_ERR("Read index for DMA queue txq_id (%d) index %d "
Tomas Winkler91c066f2008-03-06 17:36:55 -0800320 "is out of range [0-%d] %d %d\n", txq_id,
321 index, txq->q.n_bd, txq->q.write_ptr,
322 txq->q.read_ptr);
323 return;
324 }
325
Stanislaw Gruszka22de94d2010-12-03 15:41:48 +0100326 txq->time_stamp = jiffies;
Johannes Bergff0d91c2010-05-17 02:37:34 -0700327 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
Johannes Berge6a98542008-10-21 12:40:02 +0200328 ieee80211_tx_info_clear_status(info);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800329
Johannes Berge6a98542008-10-21 12:40:02 +0200330 /* Fill the MRR chain with some info about on-chip retransmissions */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200331 rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate);
Johannes Berge6a98542008-10-21 12:40:02 +0200332 if (info->band == IEEE80211_BAND_5GHZ)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200333 rate_idx -= IL_FIRST_OFDM_RATE;
Johannes Berge6a98542008-10-21 12:40:02 +0200334
335 fail = tx_resp->failure_frame;
Johannes Berge6a98542008-10-21 12:40:02 +0200336
Abbas, Mohamed74221d02008-12-02 12:14:03 -0800337 info->status.rates[0].idx = rate_idx;
338 info->status.rates[0].count = fail + 1; /* add final attempt */
Johannes Berge6a98542008-10-21 12:40:02 +0200339
Tomas Winkler91c066f2008-03-06 17:36:55 -0800340 /* tx_status->rts_retry_count = tx_resp->failure_rts; */
Johannes Berge039fa42008-05-15 12:55:29 +0200341 info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
342 IEEE80211_TX_STAT_ACK : 0;
Tomas Winkler91c066f2008-03-06 17:36:55 -0800343
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100344 D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200345 txq_id, il3945_get_tx_fail_reason(status), status,
Tomas Winkler91c066f2008-03-06 17:36:55 -0800346 tx_resp->rate, tx_resp->failure_frame);
347
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100348 D_TX_REPLY("Tx queue reclaim %d\n", index);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200349 il3945_tx_queue_reclaim(il, txq_id, index);
Tomas Winkler91c066f2008-03-06 17:36:55 -0800350
Johannes Berga313f382010-09-22 18:02:12 +0200351 if (status & TX_ABORT_REQUIRED_MSK)
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200352 IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n");
Tomas Winkler91c066f2008-03-06 17:36:55 -0800353}
354
355
356
Zhu Yib481de92007-09-25 17:54:57 -0700357/*****************************************************************************
358 *
359 * Intel PRO/Wireless 3945ABG/BG Network Connection
360 *
361 * RX handler implementations
362 *
Zhu Yib481de92007-09-25 17:54:57 -0700363 *****************************************************************************/
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100364#ifdef CONFIG_IWLEGACY_DEBUGFS
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200365static void il3945_accumulative_stats(struct il_priv *il,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700366 __le32 *stats)
367{
368 int i;
369 __le32 *prev_stats;
370 u32 *accum_stats;
371 u32 *delta, *max_delta;
372
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200373 prev_stats = (__le32 *)&il->_3945.stats;
374 accum_stats = (u32 *)&il->_3945.accum_stats;
375 delta = (u32 *)&il->_3945.delta_stats;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200376 max_delta = (u32 *)&il->_3945.max_delta;
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700377
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200378 for (i = sizeof(__le32); i < sizeof(struct il3945_notif_stats);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700379 i += sizeof(__le32), stats++, prev_stats++, delta++,
380 max_delta++, accum_stats++) {
381 if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
382 *delta = (le32_to_cpu(*stats) -
383 le32_to_cpu(*prev_stats));
384 *accum_stats += *delta;
385 if (*delta > *max_delta)
386 *max_delta = *delta;
387 }
388 }
389
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200390 /* reset accumulative stats for "no-counter" type stats */
391 il->_3945.accum_stats.general.temperature =
392 il->_3945.stats.general.temperature;
393 il->_3945.accum_stats.general.ttl_timestamp =
394 il->_3945.stats.general.ttl_timestamp;
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700395}
396#endif
Zhu Yib481de92007-09-25 17:54:57 -0700397
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200398void il3945_hw_rx_stats(struct il_priv *il,
Stanislaw Gruszkab73bb5f2011-08-26 14:37:54 +0200399 struct il_rx_buf *rxb)
Zhu Yib481de92007-09-25 17:54:57 -0700400{
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +0200401 struct il_rx_pkt *pkt = rxb_addr(rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700402
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100403 D_RX("Statistics notification received (%d vs %d).\n",
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200404 (int)sizeof(struct il3945_notif_stats),
Daniel C Halperin396887a2009-08-13 13:31:01 -0700405 le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100406#ifdef CONFIG_IWLEGACY_DEBUGFS
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200407 il3945_accumulative_stats(il, (__le32 *)&pkt->u.raw);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700408#endif
Zhu Yib481de92007-09-25 17:54:57 -0700409
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200410 memcpy(&il->_3945.stats, pkt->u.raw, sizeof(il->_3945.stats));
Zhu Yib481de92007-09-25 17:54:57 -0700411}
412
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200413void il3945_reply_stats(struct il_priv *il,
Stanislaw Gruszkab73bb5f2011-08-26 14:37:54 +0200414 struct il_rx_buf *rxb)
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700415{
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +0200416 struct il_rx_pkt *pkt = rxb_addr(rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700417 __le32 *flag = (__le32 *)&pkt->u.raw;
418
419 if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100420#ifdef CONFIG_IWLEGACY_DEBUGFS
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200421 memset(&il->_3945.accum_stats, 0,
422 sizeof(struct il3945_notif_stats));
423 memset(&il->_3945.delta_stats, 0,
424 sizeof(struct il3945_notif_stats));
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200425 memset(&il->_3945.max_delta, 0,
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200426 sizeof(struct il3945_notif_stats));
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700427#endif
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100428 D_RX("Statistics have been cleared\n");
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700429 }
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200430 il3945_hw_rx_stats(il, rxb);
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -0700431}
432
433
Tomas Winkler17744ff2008-03-02 01:52:00 +0200434/******************************************************************************
435 *
436 * Misc. internal state and helper functions
437 *
438 ******************************************************************************/
Tomas Winkler17744ff2008-03-02 01:52:00 +0200439
Stanislaw Gruszkaebf0d902011-08-26 15:43:47 +0200440/* This is necessary only for a number of stats, see the caller. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200441static int il3945_is_network_packet(struct il_priv *il,
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800442 struct ieee80211_hdr *header)
443{
444 /* Filter incoming packets to determine if they are targeted toward
445 * this network, discarding packets coming from ourselves */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200446 switch (il->iw_mode) {
Johannes Berg05c914f2008-09-11 00:01:58 +0200447 case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800448 /* packets to our IBSS update information */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200449 return !compare_ether_addr(header->addr3, il->bssid);
Johannes Berg05c914f2008-09-11 00:01:58 +0200450 case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800451 /* packets to our IBSS update information */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200452 return !compare_ether_addr(header->addr2, il->bssid);
Adel Gadllah4bd9b4f2008-07-11 11:53:29 +0800453 default:
454 return 1;
455 }
456}
Tomas Winkler17744ff2008-03-02 01:52:00 +0200457
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200458static void il3945_pass_packet_to_mac80211(struct il_priv *il,
Stanislaw Gruszkab73bb5f2011-08-26 14:37:54 +0200459 struct il_rx_buf *rxb,
Zhu Yi12342c42007-12-20 11:27:32 +0800460 struct ieee80211_rx_status *stats)
Zhu Yib481de92007-09-25 17:54:57 -0700461{
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +0200462 struct il_rx_pkt *pkt = rxb_addr(rxb);
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200463 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
464 struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
465 struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
Zhu Yi2f301222009-10-09 17:19:45 +0800466 u16 len = le16_to_cpu(rx_hdr->len);
467 struct sk_buff *skb;
Zhu Yi29b1b262009-10-23 13:42:25 -0700468 __le16 fc = hdr->frame_control;
Zhu Yib481de92007-09-25 17:54:57 -0700469
470 /* We received data from the HW, so stop the watchdog */
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100471 if (unlikely(len + IL39_RX_FRAME_SIZE >
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200472 PAGE_SIZE << il->hw_params.rx_page_order)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100473 D_DROP("Corruption detected!\n");
Zhu Yib481de92007-09-25 17:54:57 -0700474 return;
475 }
476
477 /* We only process data packets if the interface is open */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200478 if (unlikely(!il->is_open)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100479 D_DROP(
Tomas Winklere1623442009-01-27 14:27:56 -0800480 "Dropping packet while interface is not open.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700481 return;
482 }
Zhu Yib481de92007-09-25 17:54:57 -0700483
Zhu Yiecdf94b2010-03-29 16:42:26 +0800484 skb = dev_alloc_skb(128);
Zhu Yi2f301222009-10-09 17:19:45 +0800485 if (!skb) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200486 IL_ERR("dev_alloc_skb failed\n");
Zhu Yi2f301222009-10-09 17:19:45 +0800487 return;
488 }
Zhu Yib481de92007-09-25 17:54:57 -0700489
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200490 if (!il3945_mod_params.sw_crypto)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200491 il_set_decrypted_flag(il,
Zhu Yi2f301222009-10-09 17:19:45 +0800492 (struct ieee80211_hdr *)rxb_addr(rxb),
Zhu Yib481de92007-09-25 17:54:57 -0700493 le32_to_cpu(rx_end->status), stats);
494
Zhu Yi2f301222009-10-09 17:19:45 +0800495 skb_add_rx_frag(skb, 0, rxb->page,
496 (void *)rx_hdr->payload - (void *)pkt, len);
497
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200498 il_update_stats(il, false, fc, len);
Zhu Yi2f301222009-10-09 17:19:45 +0800499 memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
Zhu Yi2f301222009-10-09 17:19:45 +0800500
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200501 ieee80211_rx(il->hw, skb);
502 il->alloc_rxb_page--;
Zhu Yi2f301222009-10-09 17:19:45 +0800503 rxb->page = NULL;
Zhu Yib481de92007-09-25 17:54:57 -0700504}
505
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200506#define IL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
Mohamed Abbas7878a5a2007-11-29 11:10:13 +0800507
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200508static void il3945_rx_reply_rx(struct il_priv *il,
Stanislaw Gruszkab73bb5f2011-08-26 14:37:54 +0200509 struct il_rx_buf *rxb)
Zhu Yib481de92007-09-25 17:54:57 -0700510{
Tomas Winkler17744ff2008-03-02 01:52:00 +0200511 struct ieee80211_hdr *header;
512 struct ieee80211_rx_status rx_status;
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +0200513 struct il_rx_pkt *pkt = rxb_addr(rxb);
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200514 struct il3945_rx_frame_stats *rx_stats = IL_RX_STATS(pkt);
515 struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
516 struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
Reinette Chatref875f512010-04-05 10:43:10 -0700517 u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
518 u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff);
Zhu Yib481de92007-09-25 17:54:57 -0700519 u8 network_packet;
Tomas Winkler17744ff2008-03-02 01:52:00 +0200520
Tomas Winkler17744ff2008-03-02 01:52:00 +0200521 rx_status.flag = 0;
522 rx_status.mactime = le64_to_cpu(rx_end->timestamp);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200523 rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
524 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
Bruno Randolf59eb21a2011-01-17 13:37:28 +0900525 rx_status.freq =
526 ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
527 rx_status.band);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200528
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200529 rx_status.rate_idx = il3945_hwrate_to_plcp_idx(rx_hdr->rate);
Tomas Winkler17744ff2008-03-02 01:52:00 +0200530 if (rx_status.band == IEEE80211_BAND_5GHZ)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200531 rx_status.rate_idx -= IL_FIRST_OFDM_RATE;
Zhu Yib481de92007-09-25 17:54:57 -0700532
Reinette Chatre9024adf2009-10-02 13:43:57 -0700533 rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) &
Bruno Randolf6f0a2c42008-07-30 17:20:14 +0200534 RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
535
536 /* set the preamble flag if appropriate */
537 if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
538 rx_status.flag |= RX_FLAG_SHORTPRE;
539
Zhu Yib481de92007-09-25 17:54:57 -0700540 if ((unlikely(rx_stats->phy_count > 20))) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100541 D_DROP("dsp size out of range [0,20]: %d/n",
Tomas Winklere1623442009-01-27 14:27:56 -0800542 rx_stats->phy_count);
Zhu Yib481de92007-09-25 17:54:57 -0700543 return;
544 }
545
Stanislaw Gruszka232913b2011-08-26 10:45:16 +0200546 if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) ||
547 !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100548 D_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
Zhu Yib481de92007-09-25 17:54:57 -0700549 return;
550 }
551
Maxim Levitsky56decd32008-08-01 12:54:27 +0300552
Zhu Yib481de92007-09-25 17:54:57 -0700553
554 /* Convert 3945's rssi indicator to dBm */
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100555 rx_status.signal = rx_stats->rssi - IL39_RSSI_OFFSET;
Zhu Yib481de92007-09-25 17:54:57 -0700556
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100557 D_STATS("Rssi %d sig_avg %d noise_diff %d\n",
Johannes Berged1b6e92010-03-18 09:58:27 -0700558 rx_status.signal, rx_stats_sig_avg,
559 rx_stats_noise_diff);
Zhu Yib481de92007-09-25 17:54:57 -0700560
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200561 header = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
Zhu Yib481de92007-09-25 17:54:57 -0700562
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200563 network_packet = il3945_is_network_packet(il, header);
Zhu Yib481de92007-09-25 17:54:57 -0700564
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100565 D_STATS("[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
Tomas Winkler17744ff2008-03-02 01:52:00 +0200566 network_packet ? '*' : ' ',
567 le16_to_cpu(rx_hdr->channel),
Bruno Randolf566bfe52008-05-08 19:15:40 +0200568 rx_status.signal, rx_status.signal,
Johannes Berged1b6e92010-03-18 09:58:27 -0700569 rx_status.rate_idx);
Zhu Yib481de92007-09-25 17:54:57 -0700570
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200571 il_dbg_log_rx_data_frame(il, le16_to_cpu(rx_hdr->len),
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800572 header);
Zhu Yib481de92007-09-25 17:54:57 -0700573
574 if (network_packet) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200575 il->_3945.last_beacon_time =
Johannes Berge99f1682010-01-19 10:04:28 -0800576 le32_to_cpu(rx_end->beacon_timestamp);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200577 il->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
578 il->_3945.last_rx_rssi = rx_status.signal;
Zhu Yib481de92007-09-25 17:54:57 -0700579 }
580
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200581 il3945_pass_packet_to_mac80211(il, rxb, &rx_status);
Zhu Yib481de92007-09-25 17:54:57 -0700582}
583
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200584int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200585 struct il_tx_queue *txq,
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800586 dma_addr_t addr, u16 len, u8 reset, u8 pad)
Zhu Yib481de92007-09-25 17:54:57 -0700587{
588 int count;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200589 struct il_queue *q;
590 struct il3945_tfd *tfd, *tfd_tmp;
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800591
592 q = &txq->q;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200593 tfd_tmp = (struct il3945_tfd *)txq->tfds;
Samuel Ortiz59606ff2009-01-23 13:45:13 -0800594 tfd = &tfd_tmp[q->write_ptr];
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800595
596 if (reset)
597 memset(tfd, 0, sizeof(*tfd));
Zhu Yib481de92007-09-25 17:54:57 -0700598
599 count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
Zhu Yib481de92007-09-25 17:54:57 -0700600
Stanislaw Gruszka232913b2011-08-26 10:45:16 +0200601 if (count >= NUM_TFD_CHUNKS || count < 0) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200602 IL_ERR("Error can not send more than %d chunks\n",
Zhu Yib481de92007-09-25 17:54:57 -0700603 NUM_TFD_CHUNKS);
604 return -EINVAL;
605 }
606
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800607 tfd->tbs[count].addr = cpu_to_le32(addr);
608 tfd->tbs[count].len = cpu_to_le32(len);
Zhu Yib481de92007-09-25 17:54:57 -0700609
610 count++;
611
612 tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
613 TFD_CTL_PAD_SET(pad));
614
615 return 0;
616}
617
618/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200619 * il3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
Zhu Yib481de92007-09-25 17:54:57 -0700620 *
621 * Does NOT advance any indexes
622 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200623void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
Zhu Yib481de92007-09-25 17:54:57 -0700624{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200625 struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds;
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700626 int index = txq->q.read_ptr;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200627 struct il3945_tfd *tfd = &tfd_tmp[index];
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200628 struct pci_dev *dev = il->pci_dev;
Zhu Yib481de92007-09-25 17:54:57 -0700629 int i;
630 int counter;
631
Zhu Yib481de92007-09-25 17:54:57 -0700632 /* sanity check */
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800633 counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
Zhu Yib481de92007-09-25 17:54:57 -0700634 if (counter > NUM_TFD_CHUNKS) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200635 IL_ERR("Too many chunks: %i\n", counter);
Zhu Yib481de92007-09-25 17:54:57 -0700636 /* @todo issue fatal error, it is quite serious situation */
Samuel Ortiz7aaa1d72009-01-19 15:30:26 -0800637 return;
Zhu Yib481de92007-09-25 17:54:57 -0700638 }
639
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700640 /* Unmap tx_cmd */
641 if (counter)
642 pci_unmap_single(dev,
FUJITA Tomonori2e724442010-06-03 14:19:20 +0900643 dma_unmap_addr(&txq->meta[index], mapping),
644 dma_unmap_len(&txq->meta[index], len),
Reinette Chatrefd9377e2009-03-11 11:17:58 -0700645 PCI_DMA_TODEVICE);
646
Zhu Yib481de92007-09-25 17:54:57 -0700647 /* unmap chunks if any */
648
Johannes Bergff0d91c2010-05-17 02:37:34 -0700649 for (i = 1; i < counter; i++)
Winkler, Tomasdbb66542008-12-22 11:31:14 +0800650 pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
651 le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
Johannes Berg4f5fa232010-05-17 02:37:31 -0700652
Johannes Bergff0d91c2010-05-17 02:37:34 -0700653 /* free SKB */
654 if (txq->txb) {
655 struct sk_buff *skb;
Johannes Berg4f5fa232010-05-17 02:37:31 -0700656
Johannes Bergff0d91c2010-05-17 02:37:34 -0700657 skb = txq->txb[txq->q.read_ptr].skb;
658
659 /* can be called from irqs-disabled context */
660 if (skb) {
661 dev_kfree_skb_any(skb);
662 txq->txb[txq->q.read_ptr].skb = NULL;
Zhu Yib481de92007-09-25 17:54:57 -0700663 }
664 }
Zhu Yib481de92007-09-25 17:54:57 -0700665}
666
Zhu Yib481de92007-09-25 17:54:57 -0700667/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200668 * il3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
Zhu Yib481de92007-09-25 17:54:57 -0700669 *
670*/
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200671void il3945_hw_build_tx_cmd_rate(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200672 struct il_device_cmd *cmd,
Johannes Bergc2acea82009-07-24 11:13:05 -0700673 struct ieee80211_tx_info *info,
674 struct ieee80211_hdr *hdr,
675 int sta_id, int tx_id)
Zhu Yib481de92007-09-25 17:54:57 -0700676{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200677 u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200678 u16 rate_index = min(hw_value & 0xffff, IL_RATE_COUNT_3945);
Zhu Yib481de92007-09-25 17:54:57 -0700679 u16 rate_mask;
680 int rate;
681 u8 rts_retry_limit;
682 u8 data_retry_limit;
683 __le32 tx_flags;
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700684 __le16 fc = hdr->frame_control;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200685 struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
Zhu Yib481de92007-09-25 17:54:57 -0700686
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200687 rate = il3945_rates[rate_index].plcp;
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700688 tx_flags = tx_cmd->tx_flags;
Zhu Yib481de92007-09-25 17:54:57 -0700689
690 /* We need to figure out how to get the sta->supp_rates while
Johannes Berge039fa42008-05-15 12:55:29 +0200691 * in this running context */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200692 rate_mask = IL_RATES_MASK_3945;
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700693
694 /* Set retry limit on DATA packets and Probe Responses*/
695 if (ieee80211_is_probe_resp(fc))
696 data_retry_limit = 3;
697 else
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200698 data_retry_limit = IL_DEFAULT_TX_RETRY;
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700699 tx_cmd->data_retry_limit = data_retry_limit;
700
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100701 if (tx_id >= IL39_CMD_QUEUE_NUM)
Zhu Yib481de92007-09-25 17:54:57 -0700702 rts_retry_limit = 3;
703 else
704 rts_retry_limit = 7;
705
Abhijeet Kolekar768db982009-10-09 13:20:33 -0700706 if (data_retry_limit < rts_retry_limit)
707 rts_retry_limit = data_retry_limit;
708 tx_cmd->rts_retry_limit = rts_retry_limit;
Zhu Yib481de92007-09-25 17:54:57 -0700709
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700710 tx_cmd->rate = rate;
711 tx_cmd->tx_flags = tx_flags;
Zhu Yib481de92007-09-25 17:54:57 -0700712
713 /* OFDM */
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700714 tx_cmd->supp_rates[0] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200715 ((rate_mask & IL_OFDM_RATES_MASK) >> IL_FIRST_OFDM_RATE) & 0xFF;
Zhu Yib481de92007-09-25 17:54:57 -0700716
717 /* CCK */
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700718 tx_cmd->supp_rates[1] = (rate_mask & 0xF);
Zhu Yib481de92007-09-25 17:54:57 -0700719
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100720 D_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
Zhu Yib481de92007-09-25 17:54:57 -0700721 "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
Abhijeet Kolekar9744c912009-10-09 13:20:31 -0700722 tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags),
723 tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]);
Zhu Yib481de92007-09-25 17:54:57 -0700724}
725
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200726static u8 il3945_sync_sta(struct il_priv *il, int sta_id, u16 tx_rate)
Zhu Yib481de92007-09-25 17:54:57 -0700727{
728 unsigned long flags_spin;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200729 struct il_station_entry *station;
Zhu Yib481de92007-09-25 17:54:57 -0700730
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200731 if (sta_id == IL_INVALID_STATION)
732 return IL_INVALID_STATION;
Zhu Yib481de92007-09-25 17:54:57 -0700733
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200734 spin_lock_irqsave(&il->sta_lock, flags_spin);
735 station = &il->stations[sta_id];
Zhu Yib481de92007-09-25 17:54:57 -0700736
737 station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
738 station->sta.rate_n_flags = cpu_to_le16(tx_rate);
Zhu Yib481de92007-09-25 17:54:57 -0700739 station->sta.mode = STA_CONTROL_MODIFY_MSK;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200740 il_send_add_sta(il, &station->sta, CMD_ASYNC);
741 spin_unlock_irqrestore(&il->sta_lock, flags_spin);
Zhu Yib481de92007-09-25 17:54:57 -0700742
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100743 D_RATE("SCALE sync station %d to rate %d\n",
Zhu Yib481de92007-09-25 17:54:57 -0700744 sta_id, tx_rate);
745 return sta_id;
746}
747
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200748static void il3945_set_pwr_vmain(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700749{
Johannes Berg9597eba2010-09-22 18:02:09 +0200750/*
751 * (for documentation purposes)
752 * to set power to V_AUX, do
753
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200754 if (pci_pme_capable(il->pci_dev, PCI_D3cold)) {
755 il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
Zhu Yib481de92007-09-25 17:54:57 -0700756 APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
757 ~APMG_PS_CTRL_MSK_PWR_SRC);
Zhu Yib481de92007-09-25 17:54:57 -0700758
Stanislaw Gruszka142b3432011-08-24 15:22:57 +0200759 _il_poll_bit(il, CSR_GPIO_IN,
Zhu Yib481de92007-09-25 17:54:57 -0700760 CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
761 CSR_GPIO_IN_BIT_AUX_POWER, 5000);
Tomas Winkler3fdb68d2009-02-10 15:19:02 -0800762 }
Johannes Berg9597eba2010-09-22 18:02:09 +0200763 */
Zhu Yib481de92007-09-25 17:54:57 -0700764
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200765 il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
Johannes Berg9597eba2010-09-22 18:02:09 +0200766 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
767 ~APMG_PS_CTRL_MSK_PWR_SRC);
Zhu Yib481de92007-09-25 17:54:57 -0700768
Stanislaw Gruszka142b3432011-08-24 15:22:57 +0200769 _il_poll_bit(il, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
Johannes Berg9597eba2010-09-22 18:02:09 +0200770 CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
Zhu Yib481de92007-09-25 17:54:57 -0700771}
772
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200773static int il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq)
Zhu Yib481de92007-09-25 17:54:57 -0700774{
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200775 il_wr(il, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
776 il_wr(il, FH39_RCSR_RPTR_ADDR(0),
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800777 rxq->rb_stts_dma);
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200778 il_wr(il, FH39_RCSR_WPTR(0), 0);
779 il_wr(il, FH39_RCSR_CONFIG(0),
Tomas Winklerbddadf82008-12-19 10:37:01 +0800780 FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
781 FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
782 FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
783 FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
784 (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
785 FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
786 (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
787 FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
Zhu Yib481de92007-09-25 17:54:57 -0700788
789 /* fake read to flush all prev I/O */
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200790 il_rd(il, FH39_RSSR_CTRL);
Zhu Yib481de92007-09-25 17:54:57 -0700791
Zhu Yib481de92007-09-25 17:54:57 -0700792 return 0;
793}
794
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200795static int il3945_tx_reset(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700796{
Zhu Yib481de92007-09-25 17:54:57 -0700797
798 /* bypass mode */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200799 il_wr_prph(il, ALM_SCD_MODE_REG, 0x2);
Zhu Yib481de92007-09-25 17:54:57 -0700800
801 /* RA 0 is active */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200802 il_wr_prph(il, ALM_SCD_ARASTAT_REG, 0x01);
Zhu Yib481de92007-09-25 17:54:57 -0700803
804 /* all 6 fifo are active */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200805 il_wr_prph(il, ALM_SCD_TXFACT_REG, 0x3f);
Zhu Yib481de92007-09-25 17:54:57 -0700806
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200807 il_wr_prph(il, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
808 il_wr_prph(il, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
809 il_wr_prph(il, ALM_SCD_TXF4MF_REG, 0x000004);
810 il_wr_prph(il, ALM_SCD_TXF5MF_REG, 0x000005);
Zhu Yib481de92007-09-25 17:54:57 -0700811
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200812 il_wr(il, FH39_TSSR_CBB_BASE,
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200813 il->_3945.shared_phys);
Zhu Yib481de92007-09-25 17:54:57 -0700814
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200815 il_wr(il, FH39_TSSR_MSG_CONFIG,
Tomas Winklerbddadf82008-12-19 10:37:01 +0800816 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
817 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
818 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
819 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
820 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
821 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
822 FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
Zhu Yib481de92007-09-25 17:54:57 -0700823
Zhu Yib481de92007-09-25 17:54:57 -0700824
825 return 0;
826}
827
828/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200829 * il3945_txq_ctx_reset - Reset TX queue context
Zhu Yib481de92007-09-25 17:54:57 -0700830 *
831 * Destroys all DMA structures and initialize them again
832 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200833static int il3945_txq_ctx_reset(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700834{
835 int rc;
836 int txq_id, slots_num;
837
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200838 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -0700839
Wey-Yi Guy88804e22009-10-09 13:20:28 -0700840 /* allocate tx queue structure */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200841 rc = il_alloc_txq_mem(il);
Wey-Yi Guy88804e22009-10-09 13:20:28 -0700842 if (rc)
843 return rc;
844
Zhu Yib481de92007-09-25 17:54:57 -0700845 /* Tx CMD queue */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200846 rc = il3945_tx_reset(il);
Zhu Yib481de92007-09-25 17:54:57 -0700847 if (rc)
848 goto error;
849
850 /* Tx queue(s) */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200851 for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
Stanislaw Gruszkad3175162011-11-15 11:25:42 +0100852 slots_num = (txq_id == IL39_CMD_QUEUE_NUM) ?
Zhu Yib481de92007-09-25 17:54:57 -0700853 TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200854 rc = il_tx_queue_init(il, &il->txq[txq_id],
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800855 slots_num, txq_id);
Zhu Yib481de92007-09-25 17:54:57 -0700856 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200857 IL_ERR("Tx %d queue init failed\n", txq_id);
Zhu Yib481de92007-09-25 17:54:57 -0700858 goto error;
859 }
860 }
861
862 return rc;
863
864 error:
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200865 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -0700866 return rc;
867}
868
Ben Cahillfadb3582009-10-23 13:42:21 -0700869
Ben Cahillf33269b2009-10-09 13:20:19 -0700870/*
Ben Cahillfadb3582009-10-23 13:42:21 -0700871 * Start up 3945's basic functionality after it has been reset
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +0200872 * (e.g. after platform boot, or shutdown via il_apm_stop())
Ben Cahillf33269b2009-10-09 13:20:19 -0700873 * NOTE: This does not load uCode nor start the embedded processor
874 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200875static int il3945_apm_init(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -0700876{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200877 int ret = il_apm_init(il);
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800878
Ben Cahillf33269b2009-10-09 13:20:19 -0700879 /* Clear APMG (NIC's internal power management) interrupts */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +0200880 il_wr_prph(il, APMG_RTC_INT_MSK_REG, 0x0);
881 il_wr_prph(il, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
Ben Cahillf33269b2009-10-09 13:20:19 -0700882
883 /* Reset radio chip */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200884 il_set_bits_prph(il, APMG_PS_CTRL_REG,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800885 APMG_PS_CTRL_VAL_RESET_REQ);
Ben Cahillf33269b2009-10-09 13:20:19 -0700886 udelay(5);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200887 il_clear_bits_prph(il, APMG_PS_CTRL_REG,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -0800888 APMG_PS_CTRL_VAL_RESET_REQ);
Ben Cahillf33269b2009-10-09 13:20:19 -0700889
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800890 return ret;
891}
Zhu Yib481de92007-09-25 17:54:57 -0700892
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200893static void il3945_nic_config(struct il_priv *il)
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800894{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200895 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800896 unsigned long flags;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200897 u8 rev_id = il->pci_dev->revision;
Zhu Yib481de92007-09-25 17:54:57 -0700898
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200899 spin_lock_irqsave(&il->lock, flags);
Zhu Yib481de92007-09-25 17:54:57 -0700900
Abhijeet Kolekar43121432009-05-08 13:44:41 -0700901 /* Determine HW type */
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100902 D_INFO("HW Revision ID = 0x%X\n", rev_id);
Abhijeet Kolekar43121432009-05-08 13:44:41 -0700903
Zhu Yib481de92007-09-25 17:54:57 -0700904 if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100905 D_INFO("RTP type\n");
Zhu Yib481de92007-09-25 17:54:57 -0700906 else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100907 D_INFO("3945 RADIO-MB type\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200908 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800909 CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
Zhu Yib481de92007-09-25 17:54:57 -0700910 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100911 D_INFO("3945 RADIO-MM type\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200912 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800913 CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
Zhu Yib481de92007-09-25 17:54:57 -0700914 }
915
Samuel Ortize6148912009-01-23 13:45:15 -0800916 if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100917 D_INFO("SKU OP mode is mrc\n");
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200918 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800919 CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
Zhu Yib481de92007-09-25 17:54:57 -0700920 } else
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100921 D_INFO("SKU OP mode is basic\n");
Zhu Yib481de92007-09-25 17:54:57 -0700922
Samuel Ortize6148912009-01-23 13:45:15 -0800923 if ((eeprom->board_revision & 0xF0) == 0xD0) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100924 D_INFO("3945ABG revision is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800925 eeprom->board_revision);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200926 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800927 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
Zhu Yib481de92007-09-25 17:54:57 -0700928 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100929 D_INFO("3945ABG revision is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800930 eeprom->board_revision);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200931 il_clear_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800932 CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
Zhu Yib481de92007-09-25 17:54:57 -0700933 }
934
Samuel Ortize6148912009-01-23 13:45:15 -0800935 if (eeprom->almgor_m_version <= 1) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200936 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800937 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100938 D_INFO("Card M type A version is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800939 eeprom->almgor_m_version);
Zhu Yib481de92007-09-25 17:54:57 -0700940 } else {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100941 D_INFO("Card M type B version is 0x%X\n",
Samuel Ortize6148912009-01-23 13:45:15 -0800942 eeprom->almgor_m_version);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200943 il_set_bit(il, CSR_HW_IF_CONFIG_REG,
Tomas Winkler6f83eaa2008-03-04 18:09:28 -0800944 CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
Zhu Yib481de92007-09-25 17:54:57 -0700945 }
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200946 spin_unlock_irqrestore(&il->lock, flags);
Zhu Yib481de92007-09-25 17:54:57 -0700947
Samuel Ortize6148912009-01-23 13:45:15 -0800948 if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100949 D_RF_KILL("SW RF KILL supported in EEPROM.\n");
Zhu Yib481de92007-09-25 17:54:57 -0700950
Samuel Ortize6148912009-01-23 13:45:15 -0800951 if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +0100952 D_RF_KILL("HW RF KILL supported in EEPROM.\n");
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800953}
954
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200955int il3945_hw_nic_init(struct il_priv *il)
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800956{
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800957 int rc;
958 unsigned long flags;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200959 struct il_rx_queue *rxq = &il->rxq;
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800960
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200961 spin_lock_irqsave(&il->lock, flags);
962 il->cfg->ops->lib->apm_ops.init(il);
963 spin_unlock_irqrestore(&il->lock, flags);
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +0800964
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200965 il3945_set_pwr_vmain(il);
Kolekar, Abhijeet854682e2008-12-19 10:37:39 +0800966
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200967 il->cfg->ops->lib->apm_ops.config(il);
Zhu Yib481de92007-09-25 17:54:57 -0700968
969 /* Allocate the RX queue, or reset if it is already allocated */
970 if (!rxq->bd) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200971 rc = il_rx_queue_alloc(il);
Zhu Yib481de92007-09-25 17:54:57 -0700972 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +0200973 IL_ERR("Unable to initialize Rx queue\n");
Zhu Yib481de92007-09-25 17:54:57 -0700974 return -ENOMEM;
975 }
976 } else
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200977 il3945_rx_queue_reset(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700978
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200979 il3945_rx_replenish(il);
Zhu Yib481de92007-09-25 17:54:57 -0700980
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200981 il3945_rx_init(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700982
Zhu Yib481de92007-09-25 17:54:57 -0700983
984 /* Look at using this instead:
985 rxq->need_update = 1;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200986 il_rx_queue_update_write_ptr(il, rxq);
Zhu Yib481de92007-09-25 17:54:57 -0700987 */
988
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +0200989 il_wr(il, FH39_RCSR_WPTR(0), rxq->write & ~7);
Zhu Yib481de92007-09-25 17:54:57 -0700990
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200991 rc = il3945_txq_ctx_reset(il);
Zhu Yib481de92007-09-25 17:54:57 -0700992 if (rc)
993 return rc;
994
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +0200995 set_bit(STATUS_INIT, &il->status);
Zhu Yib481de92007-09-25 17:54:57 -0700996
997 return 0;
998}
999
1000/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001001 * il3945_hw_txq_ctx_free - Free TXQ Context
Zhu Yib481de92007-09-25 17:54:57 -07001002 *
1003 * Destroy all TX DMA queues and structures
1004 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001005void il3945_hw_txq_ctx_free(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001006{
1007 int txq_id;
1008
1009 /* Tx queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001010 if (il->txq)
1011 for (txq_id = 0; txq_id < il->hw_params.max_txq_num;
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001012 txq_id++)
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01001013 if (txq_id == IL39_CMD_QUEUE_NUM)
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001014 il_cmd_queue_free(il);
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001015 else
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001016 il_tx_queue_free(il, txq_id);
Abhijeet Kolekar3e5d2382009-03-17 21:51:49 -07001017
Wey-Yi Guy88804e22009-10-09 13:20:28 -07001018 /* free tx queue structure */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001019 il_txq_mem(il);
Zhu Yib481de92007-09-25 17:54:57 -07001020}
1021
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001022void il3945_hw_txq_ctx_stop(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001023{
Tomas Winklerbddadf82008-12-19 10:37:01 +08001024 int txq_id;
Zhu Yib481de92007-09-25 17:54:57 -07001025
1026 /* stop SCD */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02001027 il_wr_prph(il, ALM_SCD_MODE_REG, 0);
1028 il_wr_prph(il, ALM_SCD_TXFACT_REG, 0);
Zhu Yib481de92007-09-25 17:54:57 -07001029
1030 /* reset TFD queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001031 for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02001032 il_wr(il, FH39_TCSR_CONFIG(txq_id), 0x0);
1033 il_poll_bit(il, FH39_TSSR_TX_STATUS,
Tomas Winklerbddadf82008-12-19 10:37:01 +08001034 FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
Zhu Yib481de92007-09-25 17:54:57 -07001035 1000);
1036 }
1037
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001038 il3945_hw_txq_ctx_free(il);
Zhu Yib481de92007-09-25 17:54:57 -07001039}
1040
Zhu Yib481de92007-09-25 17:54:57 -07001041/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001042 * il3945_hw_reg_adjust_power_by_temp
Ian Schrambbc58072007-10-25 17:15:28 +08001043 * return index delta into power gain settings table
1044*/
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001045static int il3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
Zhu Yib481de92007-09-25 17:54:57 -07001046{
1047 return (new_reading - old_reading) * (-11) / 100;
1048}
1049
1050/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001051 * il3945_hw_reg_temp_out_of_range - Keep temperature in sane range
Zhu Yib481de92007-09-25 17:54:57 -07001052 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001053static inline int il3945_hw_reg_temp_out_of_range(int temperature)
Zhu Yib481de92007-09-25 17:54:57 -07001054{
Stanislaw Gruszka232913b2011-08-26 10:45:16 +02001055 return (temperature < -260 || temperature > 25) ? 1 : 0;
Zhu Yib481de92007-09-25 17:54:57 -07001056}
1057
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001058int il3945_hw_get_temperature(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001059{
Stanislaw Gruszka841b2cc2011-08-24 15:14:03 +02001060 return _il_rd(il, CSR_UCODE_DRV_GP2);
Zhu Yib481de92007-09-25 17:54:57 -07001061}
1062
1063/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001064 * il3945_hw_reg_txpower_get_temperature
Ian Schrambbc58072007-10-25 17:15:28 +08001065 * get the current temperature by reading from NIC
1066*/
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001067static int il3945_hw_reg_txpower_get_temperature(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001068{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001069 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001070 int temperature;
1071
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001072 temperature = il3945_hw_get_temperature(il);
Zhu Yib481de92007-09-25 17:54:57 -07001073
1074 /* driver's okay range is -260 to +25.
1075 * human readable okay range is 0 to +285 */
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001076 D_INFO("Temperature: %d\n", temperature + IL_TEMP_CONVERT);
Zhu Yib481de92007-09-25 17:54:57 -07001077
1078 /* handle insane temp reading */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001079 if (il3945_hw_reg_temp_out_of_range(temperature)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001080 IL_ERR("Error bad temperature value %d\n", temperature);
Zhu Yib481de92007-09-25 17:54:57 -07001081
1082 /* if really really hot(?),
1083 * substitute the 3rd band/group's temp measured at factory */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001084 if (il->last_temperature > 100)
Samuel Ortize6148912009-01-23 13:45:15 -08001085 temperature = eeprom->groups[2].temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001086 else /* else use most recent "sane" value from driver */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001087 temperature = il->last_temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001088 }
1089
1090 return temperature; /* raw, not "human readable" */
1091}
1092
1093/* Adjust Txpower only if temperature variance is greater than threshold.
1094 *
1095 * Both are lower than older versions' 9 degrees */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001096#define IL_TEMPERATURE_LIMIT_TIMER 6
Zhu Yib481de92007-09-25 17:54:57 -07001097
1098/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001099 * il3945_is_temp_calib_needed - determines if new calibration is needed
Zhu Yib481de92007-09-25 17:54:57 -07001100 *
1101 * records new temperature in tx_mgr->temperature.
1102 * replaces tx_mgr->last_temperature *only* if calib needed
1103 * (assumes caller will actually do the calibration!). */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001104static int il3945_is_temp_calib_needed(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001105{
1106 int temp_diff;
1107
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001108 il->temperature = il3945_hw_reg_txpower_get_temperature(il);
1109 temp_diff = il->temperature - il->last_temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001110
1111 /* get absolute value */
1112 if (temp_diff < 0) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001113 D_POWER("Getting cooler, delta %d,\n", temp_diff);
Zhu Yib481de92007-09-25 17:54:57 -07001114 temp_diff = -temp_diff;
1115 } else if (temp_diff == 0)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001116 D_POWER("Same temp,\n");
Zhu Yib481de92007-09-25 17:54:57 -07001117 else
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001118 D_POWER("Getting warmer, delta %d,\n", temp_diff);
Zhu Yib481de92007-09-25 17:54:57 -07001119
1120 /* if we don't need calibration, *don't* update last_temperature */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001121 if (temp_diff < IL_TEMPERATURE_LIMIT_TIMER) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001122 D_POWER("Timed thermal calib not needed\n");
Zhu Yib481de92007-09-25 17:54:57 -07001123 return 0;
1124 }
1125
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001126 D_POWER("Timed thermal calib needed\n");
Zhu Yib481de92007-09-25 17:54:57 -07001127
1128 /* assume that caller will actually do calib ...
1129 * update the "last temperature" value */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001130 il->last_temperature = il->temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001131 return 1;
1132}
1133
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001134#define IL_MAX_GAIN_ENTRIES 78
1135#define IL_CCK_FROM_OFDM_POWER_DIFF -5
1136#define IL_CCK_FROM_OFDM_INDEX_DIFF (10)
Zhu Yib481de92007-09-25 17:54:57 -07001137
1138/* radio and DSP power table, each step is 1/2 dB.
1139 * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001140static struct il3945_tx_power power_gain_table[2][IL_MAX_GAIN_ENTRIES] = {
Zhu Yib481de92007-09-25 17:54:57 -07001141 {
1142 {251, 127}, /* 2.4 GHz, highest power */
1143 {251, 127},
1144 {251, 127},
1145 {251, 127},
1146 {251, 125},
1147 {251, 110},
1148 {251, 105},
1149 {251, 98},
1150 {187, 125},
1151 {187, 115},
1152 {187, 108},
1153 {187, 99},
1154 {243, 119},
1155 {243, 111},
1156 {243, 105},
1157 {243, 97},
1158 {243, 92},
1159 {211, 106},
1160 {211, 100},
1161 {179, 120},
1162 {179, 113},
1163 {179, 107},
1164 {147, 125},
1165 {147, 119},
1166 {147, 112},
1167 {147, 106},
1168 {147, 101},
1169 {147, 97},
1170 {147, 91},
1171 {115, 107},
1172 {235, 121},
1173 {235, 115},
1174 {235, 109},
1175 {203, 127},
1176 {203, 121},
1177 {203, 115},
1178 {203, 108},
1179 {203, 102},
1180 {203, 96},
1181 {203, 92},
1182 {171, 110},
1183 {171, 104},
1184 {171, 98},
1185 {139, 116},
1186 {227, 125},
1187 {227, 119},
1188 {227, 113},
1189 {227, 107},
1190 {227, 101},
1191 {227, 96},
1192 {195, 113},
1193 {195, 106},
1194 {195, 102},
1195 {195, 95},
1196 {163, 113},
1197 {163, 106},
1198 {163, 102},
1199 {163, 95},
1200 {131, 113},
1201 {131, 106},
1202 {131, 102},
1203 {131, 95},
1204 {99, 113},
1205 {99, 106},
1206 {99, 102},
1207 {99, 95},
1208 {67, 113},
1209 {67, 106},
1210 {67, 102},
1211 {67, 95},
1212 {35, 113},
1213 {35, 106},
1214 {35, 102},
1215 {35, 95},
1216 {3, 113},
1217 {3, 106},
1218 {3, 102},
1219 {3, 95} }, /* 2.4 GHz, lowest power */
1220 {
1221 {251, 127}, /* 5.x GHz, highest power */
1222 {251, 120},
1223 {251, 114},
1224 {219, 119},
1225 {219, 101},
1226 {187, 113},
1227 {187, 102},
1228 {155, 114},
1229 {155, 103},
1230 {123, 117},
1231 {123, 107},
1232 {123, 99},
1233 {123, 92},
1234 {91, 108},
1235 {59, 125},
1236 {59, 118},
1237 {59, 109},
1238 {59, 102},
1239 {59, 96},
1240 {59, 90},
1241 {27, 104},
1242 {27, 98},
1243 {27, 92},
1244 {115, 118},
1245 {115, 111},
1246 {115, 104},
1247 {83, 126},
1248 {83, 121},
1249 {83, 113},
1250 {83, 105},
1251 {83, 99},
1252 {51, 118},
1253 {51, 111},
1254 {51, 104},
1255 {51, 98},
1256 {19, 116},
1257 {19, 109},
1258 {19, 102},
1259 {19, 98},
1260 {19, 93},
1261 {171, 113},
1262 {171, 107},
1263 {171, 99},
1264 {139, 120},
1265 {139, 113},
1266 {139, 107},
1267 {139, 99},
1268 {107, 120},
1269 {107, 113},
1270 {107, 107},
1271 {107, 99},
1272 {75, 120},
1273 {75, 113},
1274 {75, 107},
1275 {75, 99},
1276 {43, 120},
1277 {43, 113},
1278 {43, 107},
1279 {43, 99},
1280 {11, 120},
1281 {11, 113},
1282 {11, 107},
1283 {11, 99},
1284 {131, 107},
1285 {131, 99},
1286 {99, 120},
1287 {99, 113},
1288 {99, 107},
1289 {99, 99},
1290 {67, 120},
1291 {67, 113},
1292 {67, 107},
1293 {67, 99},
1294 {35, 120},
1295 {35, 113},
1296 {35, 107},
1297 {35, 99},
1298 {3, 120} } /* 5.x GHz, lowest power */
1299};
1300
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001301static inline u8 il3945_hw_reg_fix_power_index(int index)
Zhu Yib481de92007-09-25 17:54:57 -07001302{
1303 if (index < 0)
1304 return 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001305 if (index >= IL_MAX_GAIN_ENTRIES)
1306 return IL_MAX_GAIN_ENTRIES - 1;
Zhu Yib481de92007-09-25 17:54:57 -07001307 return (u8) index;
1308}
1309
1310/* Kick off thermal recalibration check every 60 seconds */
1311#define REG_RECALIB_PERIOD (60)
1312
1313/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001314 * il3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
Zhu Yib481de92007-09-25 17:54:57 -07001315 *
1316 * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
1317 * or 6 Mbit (OFDM) rates.
1318 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001319static void il3945_hw_reg_set_scan_power(struct il_priv *il, u32 scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07001320 s32 rate_index, const s8 *clip_pwrs,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001321 struct il_channel_info *ch_info,
Zhu Yib481de92007-09-25 17:54:57 -07001322 int band_index)
1323{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001324 struct il3945_scan_power_info *scan_power_info;
Zhu Yib481de92007-09-25 17:54:57 -07001325 s8 power;
1326 u8 power_index;
1327
1328 scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
1329
1330 /* use this channel group's 6Mbit clipping/saturation pwr,
1331 * but cap at regulatory scan power restriction (set during init
1332 * based on eeprom channel data) for this channel. */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001333 power = min(ch_info->scan_power, clip_pwrs[IL_RATE_6M_INDEX_TABLE]);
Zhu Yib481de92007-09-25 17:54:57 -07001334
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001335 power = min(power, il->tx_power_user_lmt);
Zhu Yib481de92007-09-25 17:54:57 -07001336 scan_power_info->requested_power = power;
1337
1338 /* find difference between new scan *power* and current "normal"
1339 * Tx *power* for 6Mb. Use this difference (x2) to adjust the
1340 * current "normal" temperature-compensated Tx power *index* for
1341 * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
1342 * *index*. */
1343 power_index = ch_info->power_info[rate_index].power_table_index
1344 - (power - ch_info->power_info
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001345 [IL_RATE_6M_INDEX_TABLE].requested_power) * 2;
Zhu Yib481de92007-09-25 17:54:57 -07001346
1347 /* store reference index that we use when adjusting *all* scan
1348 * powers. So we can accommodate user (all channel) or spectrum
1349 * management (single channel) power changes "between" temperature
1350 * feedback compensation procedures.
1351 * don't force fit this reference index into gain table; it may be a
1352 * negative number. This will help avoid errors when we're at
1353 * the lower bounds (highest gains, for warmest temperatures)
1354 * of the table. */
1355
1356 /* don't exceed table bounds for "real" setting */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001357 power_index = il3945_hw_reg_fix_power_index(power_index);
Zhu Yib481de92007-09-25 17:54:57 -07001358
1359 scan_power_info->power_table_index = power_index;
1360 scan_power_info->tpc.tx_gain =
1361 power_gain_table[band_index][power_index].tx_gain;
1362 scan_power_info->tpc.dsp_atten =
1363 power_gain_table[band_index][power_index].dsp_atten;
1364}
1365
1366/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001367 * il3945_send_tx_power - fill in Tx Power command with gain settings
Zhu Yib481de92007-09-25 17:54:57 -07001368 *
1369 * Configures power settings for all rates for the current channel,
1370 * using values from channel info struct, and send to NIC
1371 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001372static int il3945_send_tx_power(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001373{
Mohamed Abbas14577f22007-11-12 11:37:42 +08001374 int rate_idx, i;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001375 const struct il_channel_info *ch_info = NULL;
1376 struct il3945_txpowertable_cmd txpower = {
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001377 .channel = il->ctx.active.channel,
Zhu Yib481de92007-09-25 17:54:57 -07001378 };
Johannes Berg246ed352010-08-23 10:46:32 +02001379 u16 chan;
1380
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001381 if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &il->status),
Stanislaw Gruszka4beeba72010-10-25 10:34:50 +02001382 "TX Power requested while scanning!\n"))
1383 return -EAGAIN;
1384
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001385 chan = le16_to_cpu(il->ctx.active.channel);
Zhu Yib481de92007-09-25 17:54:57 -07001386
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001387 txpower.band = (il->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
1388 ch_info = il_get_channel_info(il, il->band, chan);
Zhu Yib481de92007-09-25 17:54:57 -07001389 if (!ch_info) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001390 IL_ERR(
Winkler, Tomas15b16872008-12-19 10:37:33 +08001391 "Failed to get channel info for channel %d [%d]\n",
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001392 chan, il->band);
Zhu Yib481de92007-09-25 17:54:57 -07001393 return -EINVAL;
1394 }
1395
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001396 if (!il_is_channel_valid(ch_info)) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001397 D_POWER("Not calling TX_PWR_TABLE_CMD on "
Zhu Yib481de92007-09-25 17:54:57 -07001398 "non-Tx channel.\n");
1399 return 0;
1400 }
1401
1402 /* fill cmd with power settings for all rates for current channel */
Mohamed Abbas14577f22007-11-12 11:37:42 +08001403 /* Fill OFDM rate */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001404 for (rate_idx = IL_FIRST_OFDM_RATE, i = 0;
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01001405 rate_idx <= IL39_LAST_OFDM_RATE; rate_idx++, i++) {
Mohamed Abbas14577f22007-11-12 11:37:42 +08001406
1407 txpower.power[i].tpc = ch_info->power_info[i].tpc;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001408 txpower.power[i].rate = il3945_rates[rate_idx].plcp;
Zhu Yib481de92007-09-25 17:54:57 -07001409
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001410 D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
Zhu Yib481de92007-09-25 17:54:57 -07001411 le16_to_cpu(txpower.channel),
1412 txpower.band,
Mohamed Abbas14577f22007-11-12 11:37:42 +08001413 txpower.power[i].tpc.tx_gain,
1414 txpower.power[i].tpc.dsp_atten,
1415 txpower.power[i].rate);
1416 }
1417 /* Fill CCK rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001418 for (rate_idx = IL_FIRST_CCK_RATE;
1419 rate_idx <= IL_LAST_CCK_RATE; rate_idx++, i++) {
Mohamed Abbas14577f22007-11-12 11:37:42 +08001420 txpower.power[i].tpc = ch_info->power_info[i].tpc;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001421 txpower.power[i].rate = il3945_rates[rate_idx].plcp;
Mohamed Abbas14577f22007-11-12 11:37:42 +08001422
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001423 D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
Mohamed Abbas14577f22007-11-12 11:37:42 +08001424 le16_to_cpu(txpower.channel),
1425 txpower.band,
1426 txpower.power[i].tpc.tx_gain,
1427 txpower.power[i].tpc.dsp_atten,
1428 txpower.power[i].rate);
Zhu Yib481de92007-09-25 17:54:57 -07001429 }
1430
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001431 return il_send_cmd_pdu(il, REPLY_TX_PWR_TABLE_CMD,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001432 sizeof(struct il3945_txpowertable_cmd),
Samuel Ortiz518099a2009-01-19 15:30:27 -08001433 &txpower);
Zhu Yib481de92007-09-25 17:54:57 -07001434
1435}
1436
1437/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001438 * il3945_hw_reg_set_new_power - Configures power tables at new levels
Zhu Yib481de92007-09-25 17:54:57 -07001439 * @ch_info: Channel to update. Uses power_info.requested_power.
1440 *
1441 * Replace requested_power and base_power_index ch_info fields for
1442 * one channel.
1443 *
1444 * Called if user or spectrum management changes power preferences.
1445 * Takes into account h/w and modulation limitations (clip power).
1446 *
1447 * This does *not* send anything to NIC, just sets up ch_info for one channel.
1448 *
1449 * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
1450 * properly fill out the scan powers, and actual h/w gain settings,
1451 * and send changes to NIC
1452 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001453static int il3945_hw_reg_set_new_power(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001454 struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001455{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001456 struct il3945_channel_power_info *power_info;
Zhu Yib481de92007-09-25 17:54:57 -07001457 int power_changed = 0;
1458 int i;
1459 const s8 *clip_pwrs;
1460 int power;
1461
1462 /* Get this chnlgrp's rate-to-max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001463 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07001464
1465 /* Get this channel's rate-to-current-power settings table */
1466 power_info = ch_info->power_info;
1467
1468 /* update OFDM Txpower settings */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001469 for (i = IL_RATE_6M_INDEX_TABLE; i <= IL_RATE_54M_INDEX_TABLE;
Zhu Yib481de92007-09-25 17:54:57 -07001470 i++, ++power_info) {
1471 int delta_idx;
1472
1473 /* limit new power to be no more than h/w capability */
1474 power = min(ch_info->curr_txpow, clip_pwrs[i]);
1475 if (power == power_info->requested_power)
1476 continue;
1477
1478 /* find difference between old and new requested powers,
1479 * update base (non-temp-compensated) power index */
1480 delta_idx = (power - power_info->requested_power) * 2;
1481 power_info->base_power_index -= delta_idx;
1482
1483 /* save new requested power value */
1484 power_info->requested_power = power;
1485
1486 power_changed = 1;
1487 }
1488
1489 /* update CCK Txpower settings, based on OFDM 12M setting ...
1490 * ... all CCK power settings for a given channel are the *same*. */
1491 if (power_changed) {
1492 power =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001493 ch_info->power_info[IL_RATE_12M_INDEX_TABLE].
1494 requested_power + IL_CCK_FROM_OFDM_POWER_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07001495
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001496 /* do all CCK rates' il3945_channel_power_info structures */
1497 for (i = IL_RATE_1M_INDEX_TABLE; i <= IL_RATE_11M_INDEX_TABLE; i++) {
Zhu Yib481de92007-09-25 17:54:57 -07001498 power_info->requested_power = power;
1499 power_info->base_power_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001500 ch_info->power_info[IL_RATE_12M_INDEX_TABLE].
1501 base_power_index + IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07001502 ++power_info;
1503 }
1504 }
1505
1506 return 0;
1507}
1508
1509/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001510 * il3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
Zhu Yib481de92007-09-25 17:54:57 -07001511 *
1512 * NOTE: Returned power limit may be less (but not more) than requested,
1513 * based strictly on regulatory (eeprom and spectrum mgt) limitations
1514 * (no consideration for h/w clipping limitations).
1515 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001516static int il3945_hw_reg_get_ch_txpower_limit(struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001517{
1518 s8 max_power;
1519
1520#if 0
1521 /* if we're using TGd limits, use lower of TGd or EEPROM */
1522 if (ch_info->tgd_data.max_power != 0)
1523 max_power = min(ch_info->tgd_data.max_power,
1524 ch_info->eeprom.max_power_avg);
1525
1526 /* else just use EEPROM limits */
1527 else
1528#endif
1529 max_power = ch_info->eeprom.max_power_avg;
1530
1531 return min(max_power, ch_info->max_power_avg);
1532}
1533
1534/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001535 * il3945_hw_reg_comp_txpower_temp - Compensate for temperature
Zhu Yib481de92007-09-25 17:54:57 -07001536 *
1537 * Compensate txpower settings of *all* channels for temperature.
1538 * This only accounts for the difference between current temperature
1539 * and the factory calibration temperatures, and bases the new settings
1540 * on the channel's base_power_index.
1541 *
1542 * If RxOn is "associated", this sends the new Txpower to NIC!
1543 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001544static int il3945_hw_reg_comp_txpower_temp(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001545{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001546 struct il_channel_info *ch_info = NULL;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001547 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001548 int delta_index;
1549 const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
1550 u8 a_band;
1551 u8 rate_index;
1552 u8 scan_tbl_index;
1553 u8 i;
1554 int ref_temp;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001555 int temperature = il->temperature;
Zhu Yib481de92007-09-25 17:54:57 -07001556
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001557 if (il->disable_tx_power_cal ||
1558 test_bit(STATUS_SCANNING, &il->status)) {
Wey-Yi Guy4e7033e2010-04-27 14:33:33 -07001559 /* do not perform tx power calibration */
1560 return 0;
1561 }
Zhu Yib481de92007-09-25 17:54:57 -07001562 /* set up new Tx power info for each and every channel, 2.4 and 5.x */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001563 for (i = 0; i < il->channel_count; i++) {
1564 ch_info = &il->channel_info[i];
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001565 a_band = il_is_channel_a_band(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001566
1567 /* Get this chnlgrp's factory calibration temperature */
Samuel Ortize6148912009-01-23 13:45:15 -08001568 ref_temp = (s16)eeprom->groups[ch_info->group_index].
Zhu Yib481de92007-09-25 17:54:57 -07001569 temperature;
1570
Tomas Winklera96a27f2008-10-23 23:48:56 -07001571 /* get power index adjustment based on current and factory
Zhu Yib481de92007-09-25 17:54:57 -07001572 * temps */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001573 delta_index = il3945_hw_reg_adjust_power_by_temp(temperature,
Zhu Yib481de92007-09-25 17:54:57 -07001574 ref_temp);
1575
1576 /* set tx power value for all rates, OFDM and CCK */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001577 for (rate_index = 0; rate_index < IL_RATE_COUNT_3945;
Zhu Yib481de92007-09-25 17:54:57 -07001578 rate_index++) {
1579 int power_idx =
1580 ch_info->power_info[rate_index].base_power_index;
1581
1582 /* temperature compensate */
1583 power_idx += delta_index;
1584
1585 /* stay within table range */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001586 power_idx = il3945_hw_reg_fix_power_index(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07001587 ch_info->power_info[rate_index].
1588 power_table_index = (u8) power_idx;
1589 ch_info->power_info[rate_index].tpc =
1590 power_gain_table[a_band][power_idx];
1591 }
1592
1593 /* Get this chnlgrp's rate-to-max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001594 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07001595
1596 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
1597 for (scan_tbl_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001598 scan_tbl_index < IL_NUM_SCAN_RATES; scan_tbl_index++) {
Zhu Yib481de92007-09-25 17:54:57 -07001599 s32 actual_index = (scan_tbl_index == 0) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001600 IL_RATE_1M_INDEX_TABLE : IL_RATE_6M_INDEX_TABLE;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001601 il3945_hw_reg_set_scan_power(il, scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07001602 actual_index, clip_pwrs,
1603 ch_info, a_band);
1604 }
1605 }
1606
1607 /* send Txpower command for current channel to ucode */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001608 return il->cfg->ops->lib->send_tx_power(il);
Zhu Yib481de92007-09-25 17:54:57 -07001609}
1610
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001611int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power)
Zhu Yib481de92007-09-25 17:54:57 -07001612{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001613 struct il_channel_info *ch_info;
Zhu Yib481de92007-09-25 17:54:57 -07001614 s8 max_power;
1615 u8 a_band;
1616 u8 i;
1617
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001618 if (il->tx_power_user_lmt == power) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001619 D_POWER("Requested Tx power same as current "
Zhu Yib481de92007-09-25 17:54:57 -07001620 "limit: %ddBm.\n", power);
1621 return 0;
1622 }
1623
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001624 D_POWER("Setting upper limit clamp to %ddBm.\n", power);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001625 il->tx_power_user_lmt = power;
Zhu Yib481de92007-09-25 17:54:57 -07001626
1627 /* set up new Tx powers for each and every channel, 2.4 and 5.x */
1628
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001629 for (i = 0; i < il->channel_count; i++) {
1630 ch_info = &il->channel_info[i];
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001631 a_band = il_is_channel_a_band(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001632
1633 /* find minimum power of all user and regulatory constraints
1634 * (does not consider h/w clipping limitations) */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001635 max_power = il3945_hw_reg_get_ch_txpower_limit(ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001636 max_power = min(power, max_power);
1637 if (max_power != ch_info->curr_txpow) {
1638 ch_info->curr_txpow = max_power;
1639
1640 /* this considers the h/w clipping limitations */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001641 il3945_hw_reg_set_new_power(il, ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07001642 }
1643 }
1644
1645 /* update txpower settings for all channels,
1646 * send to NIC if associated. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001647 il3945_is_temp_calib_needed(il);
1648 il3945_hw_reg_comp_txpower_temp(il);
Zhu Yib481de92007-09-25 17:54:57 -07001649
1650 return 0;
1651}
1652
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001653static int il3945_send_rxon_assoc(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001654 struct il_rxon_context *ctx)
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001655{
1656 int rc = 0;
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +02001657 struct il_rx_pkt *pkt;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001658 struct il3945_rxon_assoc_cmd rxon_assoc;
1659 struct il_host_cmd cmd = {
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001660 .id = REPLY_RXON_ASSOC,
1661 .len = sizeof(rxon_assoc),
Johannes Bergc2acea82009-07-24 11:13:05 -07001662 .flags = CMD_WANT_SKB,
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001663 .data = &rxon_assoc,
1664 };
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001665 const struct il_rxon_cmd *rxon1 = &ctx->staging;
1666 const struct il_rxon_cmd *rxon2 = &ctx->active;
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001667
Stanislaw Gruszka232913b2011-08-26 10:45:16 +02001668 if (rxon1->flags == rxon2->flags &&
1669 rxon1->filter_flags == rxon2->filter_flags &&
1670 rxon1->cck_basic_rates == rxon2->cck_basic_rates &&
1671 rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001672 D_INFO("Using current RXON_ASSOC. Not resending.\n");
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001673 return 0;
1674 }
1675
Johannes Berg246ed352010-08-23 10:46:32 +02001676 rxon_assoc.flags = ctx->staging.flags;
1677 rxon_assoc.filter_flags = ctx->staging.filter_flags;
1678 rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
1679 rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001680 rxon_assoc.reserved = 0;
1681
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001682 rc = il_send_cmd_sync(il, &cmd);
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001683 if (rc)
1684 return rc;
1685
Stanislaw Gruszkadcae1c62011-08-26 14:36:21 +02001686 pkt = (struct il_rx_pkt *)cmd.reply_page;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001687 if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001688 IL_ERR("Bad return from REPLY_RXON_ASSOC command\n");
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001689 rc = -EIO;
1690 }
1691
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001692 il_free_pages(il, cmd.reply_page);
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07001693
1694 return rc;
1695}
1696
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001697/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001698 * il3945_commit_rxon - commit staging_rxon to hardware
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001699 *
1700 * The RXON command in staging_rxon is committed to the hardware and
1701 * the active_rxon structure is updated with the new data. This
1702 * function correctly transitions out of the RXON_ASSOC_MSK state if
1703 * a HW tune is required based on the RXON structure changes.
1704 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001705int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001706{
1707 /* cast away the const for active_rxon in this function */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001708 struct il3945_rxon_cmd *active_rxon = (void *)&ctx->active;
1709 struct il3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001710 int rc = 0;
Johannes Berg246ed352010-08-23 10:46:32 +02001711 bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001712
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001713 if (test_bit(STATUS_EXIT_PENDING, &il->status))
Wey-Yi Guyadb90a02010-11-26 11:09:42 -08001714 return -EINVAL;
1715
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001716 if (!il_is_alive(il))
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001717 return -1;
1718
1719 /* always get timestamp with Rx frame */
1720 staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
1721
1722 /* select antenna */
1723 staging_rxon->flags &=
1724 ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001725 staging_rxon->flags |= il3945_get_antenna_flags(il);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001726
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001727 rc = il_check_rxon_cmd(il, ctx);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001728 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001729 IL_ERR("Invalid RXON configuration. Not committing.\n");
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001730 return -EINVAL;
1731 }
1732
1733 /* If we don't need to send a full RXON, we can use
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001734 * il3945_rxon_assoc_cmd which is used to reconfigure filter
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001735 * and other flags for the current radio configuration. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001736 if (!il_full_rxon_required(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001737 &il->ctx)) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001738 rc = il_send_rxon_assoc(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001739 &il->ctx);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001740 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001741 IL_ERR("Error setting RXON_ASSOC "
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001742 "configuration (%d).\n", rc);
1743 return rc;
1744 }
1745
1746 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
Stanislaw Gruszka17e859a2011-07-27 15:37:43 +02001747 /*
1748 * We do not commit tx power settings while channel changing,
1749 * do it now if tx power changed.
1750 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001751 il_set_tx_power(il, il->tx_power_next, false);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001752 return 0;
1753 }
1754
1755 /* If we are currently associated and the new config requires
1756 * an RXON_ASSOC and the new config wants the associated mask enabled,
1757 * we must clear the associated from the active configuration
1758 * before we apply the new config */
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001759 if (il_is_associated(il) && new_assoc) {
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001760 D_INFO("Toggling associated bit on current RXON\n");
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001761 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1762
1763 /*
1764 * reserved4 and 5 could have been filled by the iwlcore code.
1765 * Let's clear them before pushing to the 3945.
1766 */
1767 active_rxon->reserved4 = 0;
1768 active_rxon->reserved5 = 0;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001769 rc = il_send_cmd_pdu(il, REPLY_RXON,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001770 sizeof(struct il3945_rxon_cmd),
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001771 &il->ctx.active);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001772
1773 /* If the mask clearing failed then we set
1774 * active_rxon back to what it was previously */
1775 if (rc) {
1776 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001777 IL_ERR("Error clearing ASSOC_MSK on current "
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001778 "configuration (%d).\n", rc);
1779 return rc;
1780 }
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001781 il_clear_ucode_stations(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001782 &il->ctx);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001783 il_restore_stations(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001784 &il->ctx);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001785 }
1786
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001787 D_INFO("Sending RXON\n"
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001788 "* with%s RXON_FILTER_ASSOC_MSK\n"
1789 "* channel = %d\n"
1790 "* bssid = %pM\n",
1791 (new_assoc ? "" : "out"),
1792 le16_to_cpu(staging_rxon->channel),
1793 staging_rxon->bssid_addr);
1794
1795 /*
1796 * reserved4 and 5 could have been filled by the iwlcore code.
1797 * Let's clear them before pushing to the 3945.
1798 */
1799 staging_rxon->reserved4 = 0;
1800 staging_rxon->reserved5 = 0;
1801
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001802 il_set_rxon_hwcrypto(il, ctx, !il3945_mod_params.sw_crypto);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001803
1804 /* Apply the new configuration */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001805 rc = il_send_cmd_pdu(il, REPLY_RXON,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001806 sizeof(struct il3945_rxon_cmd),
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001807 staging_rxon);
1808 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001809 IL_ERR("Error setting new configuration (%d).\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001810 return rc;
1811 }
1812
1813 memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
1814
Reinette Chatre7e246192010-02-18 22:58:32 -08001815 if (!new_assoc) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001816 il_clear_ucode_stations(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001817 &il->ctx);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001818 il_restore_stations(il,
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01001819 &il->ctx);
Reinette Chatre7e246192010-02-18 22:58:32 -08001820 }
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001821
1822 /* If we issue a new RXON command which required a tune then we must
1823 * send a new TXPOWER command or we won't be able to Tx any frames */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001824 rc = il_set_tx_power(il, il->tx_power_next, true);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001825 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001826 IL_ERR("Error setting Tx power (%d).\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001827 return rc;
1828 }
1829
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001830 /* Init the hardware's rate fallback order based on the band */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001831 rc = il3945_init_hw_rate_table(il);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001832 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001833 IL_ERR("Error setting HW rate table: %02X\n", rc);
Abhijeet Kolekare0158e62009-04-08 11:26:37 -07001834 return -EIO;
1835 }
1836
1837 return 0;
1838}
1839
Zhu Yib481de92007-09-25 17:54:57 -07001840/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001841 * il3945_reg_txpower_periodic - called when time to check our temperature.
Zhu Yib481de92007-09-25 17:54:57 -07001842 *
1843 * -- reset periodic timer
1844 * -- see if temp has changed enough to warrant re-calibration ... if so:
1845 * -- correct coeffs for temp (can reset temp timer)
1846 * -- save this temp as "last",
1847 * -- send new set of gain settings to NIC
1848 * NOTE: This should continue working, even when we're not associated,
1849 * so we can keep our internal table of scan powers current. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001850void il3945_reg_txpower_periodic(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001851{
1852 /* This will kick in the "brute force"
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001853 * il3945_hw_reg_comp_txpower_temp() below */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001854 if (!il3945_is_temp_calib_needed(il))
Zhu Yib481de92007-09-25 17:54:57 -07001855 goto reschedule;
1856
1857 /* Set up a new set of temp-adjusted TxPowers, send to NIC.
1858 * This is based *only* on current temperature,
1859 * ignoring any previous power measurements */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001860 il3945_hw_reg_comp_txpower_temp(il);
Zhu Yib481de92007-09-25 17:54:57 -07001861
1862 reschedule:
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001863 queue_delayed_work(il->workqueue,
1864 &il->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ);
Zhu Yib481de92007-09-25 17:54:57 -07001865}
1866
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001867static void il3945_bg_reg_txpower_periodic(struct work_struct *work)
Zhu Yib481de92007-09-25 17:54:57 -07001868{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001869 struct il_priv *il = container_of(work, struct il_priv,
Johannes Bergee525d12010-01-21 06:09:28 -08001870 _3945.thermal_periodic.work);
Zhu Yib481de92007-09-25 17:54:57 -07001871
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001872 if (test_bit(STATUS_EXIT_PENDING, &il->status))
Zhu Yib481de92007-09-25 17:54:57 -07001873 return;
1874
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001875 mutex_lock(&il->mutex);
1876 il3945_reg_txpower_periodic(il);
1877 mutex_unlock(&il->mutex);
Zhu Yib481de92007-09-25 17:54:57 -07001878}
1879
1880/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001881 * il3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
Zhu Yib481de92007-09-25 17:54:57 -07001882 * for the channel.
1883 *
1884 * This function is used when initializing channel-info structs.
1885 *
1886 * NOTE: These channel groups do *NOT* match the bands above!
1887 * These channel groups are based on factory-tested channels;
1888 * on A-band, EEPROM's "group frequency" entries represent the top
1889 * channel in each group 1-4. Group 5 All B/G channels are in group 0.
1890 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001891static u16 il3945_hw_reg_get_ch_grp_index(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001892 const struct il_channel_info *ch_info)
Zhu Yib481de92007-09-25 17:54:57 -07001893{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001894 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001895 struct il3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
Zhu Yib481de92007-09-25 17:54:57 -07001896 u8 group;
1897 u16 group_index = 0; /* based on factory calib frequencies */
1898 u8 grp_channel;
1899
1900 /* Find the group index for the channel ... don't use index 1(?) */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001901 if (il_is_channel_a_band(ch_info)) {
Zhu Yib481de92007-09-25 17:54:57 -07001902 for (group = 1; group < 5; group++) {
1903 grp_channel = ch_grp[group].group_channel;
1904 if (ch_info->channel <= grp_channel) {
1905 group_index = group;
1906 break;
1907 }
1908 }
1909 /* group 4 has a few channels *above* its factory cal freq */
1910 if (group == 5)
1911 group_index = 4;
1912 } else
1913 group_index = 0; /* 2.4 GHz, group 0 */
1914
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001915 D_POWER("Chnl %d mapped to grp %d\n", ch_info->channel,
Zhu Yib481de92007-09-25 17:54:57 -07001916 group_index);
1917 return group_index;
1918}
1919
1920/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001921 * il3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
Zhu Yib481de92007-09-25 17:54:57 -07001922 *
1923 * Interpolate to get nominal (i.e. at factory calibration temperature) index
1924 * into radio/DSP gain settings table for requested power.
1925 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001926static int il3945_hw_reg_get_matched_power_index(struct il_priv *il,
Zhu Yib481de92007-09-25 17:54:57 -07001927 s8 requested_power,
1928 s32 setting_index, s32 *new_index)
1929{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001930 const struct il3945_eeprom_txpower_group *chnl_grp = NULL;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001931 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07001932 s32 index0, index1;
1933 s32 power = 2 * requested_power;
1934 s32 i;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001935 const struct il3945_eeprom_txpower_sample *samples;
Zhu Yib481de92007-09-25 17:54:57 -07001936 s32 gains0, gains1;
1937 s32 res;
1938 s32 denominator;
1939
Samuel Ortize6148912009-01-23 13:45:15 -08001940 chnl_grp = &eeprom->groups[setting_index];
Zhu Yib481de92007-09-25 17:54:57 -07001941 samples = chnl_grp->samples;
1942 for (i = 0; i < 5; i++) {
1943 if (power == samples[i].power) {
1944 *new_index = samples[i].gain_index;
1945 return 0;
1946 }
1947 }
1948
1949 if (power > samples[1].power) {
1950 index0 = 0;
1951 index1 = 1;
1952 } else if (power > samples[2].power) {
1953 index0 = 1;
1954 index1 = 2;
1955 } else if (power > samples[3].power) {
1956 index0 = 2;
1957 index1 = 3;
1958 } else {
1959 index0 = 3;
1960 index1 = 4;
1961 }
1962
1963 denominator = (s32) samples[index1].power - (s32) samples[index0].power;
1964 if (denominator == 0)
1965 return -EINVAL;
1966 gains0 = (s32) samples[index0].gain_index * (1 << 19);
1967 gains1 = (s32) samples[index1].gain_index * (1 << 19);
1968 res = gains0 + (gains1 - gains0) *
1969 ((s32) power - (s32) samples[index0].power) / denominator +
1970 (1 << 18);
1971 *new_index = res >> 19;
1972 return 0;
1973}
1974
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001975static void il3945_hw_reg_init_channel_groups(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07001976{
1977 u32 i;
1978 s32 rate_index;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02001979 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001980 const struct il3945_eeprom_txpower_group *group;
Zhu Yib481de92007-09-25 17:54:57 -07001981
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01001982 D_POWER("Initializing factory calib info from EEPROM\n");
Zhu Yib481de92007-09-25 17:54:57 -07001983
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02001984 for (i = 0; i < IL_NUM_TX_CALIB_GROUPS; i++) {
Zhu Yib481de92007-09-25 17:54:57 -07001985 s8 *clip_pwrs; /* table of power levels for each rate */
1986 s8 satur_pwr; /* saturation power for each chnl group */
Samuel Ortize6148912009-01-23 13:45:15 -08001987 group = &eeprom->groups[i];
Zhu Yib481de92007-09-25 17:54:57 -07001988
1989 /* sanity check on factory saturation power value */
1990 if (group->saturation_power < 40) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02001991 IL_WARN("Error: saturation power is %d, "
Zhu Yib481de92007-09-25 17:54:57 -07001992 "less than minimum expected 40\n",
1993 group->saturation_power);
1994 return;
1995 }
1996
1997 /*
1998 * Derive requested power levels for each rate, based on
1999 * hardware capabilities (saturation power for band).
2000 * Basic value is 3dB down from saturation, with further
2001 * power reductions for highest 3 data rates. These
2002 * backoffs provide headroom for high rate modulation
2003 * power peaks, without too much distortion (clipping).
2004 */
2005 /* we'll fill in this array with h/w max power levels */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002006 clip_pwrs = (s8 *) il->_3945.clip_groups[i].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07002007
2008 /* divide factory saturation power by 2 to find -3dB level */
2009 satur_pwr = (s8) (group->saturation_power >> 1);
2010
2011 /* fill in channel group's nominal powers for each rate */
2012 for (rate_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002013 rate_index < IL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
Zhu Yib481de92007-09-25 17:54:57 -07002014 switch (rate_index) {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002015 case IL_RATE_36M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002016 if (i == 0) /* B/G */
2017 *clip_pwrs = satur_pwr;
2018 else /* A */
2019 *clip_pwrs = satur_pwr - 5;
2020 break;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002021 case IL_RATE_48M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002022 if (i == 0)
2023 *clip_pwrs = satur_pwr - 7;
2024 else
2025 *clip_pwrs = satur_pwr - 10;
2026 break;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002027 case IL_RATE_54M_INDEX_TABLE:
Zhu Yib481de92007-09-25 17:54:57 -07002028 if (i == 0)
2029 *clip_pwrs = satur_pwr - 9;
2030 else
2031 *clip_pwrs = satur_pwr - 12;
2032 break;
2033 default:
2034 *clip_pwrs = satur_pwr;
2035 break;
2036 }
2037 }
2038 }
2039}
2040
2041/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002042 * il3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
Zhu Yib481de92007-09-25 17:54:57 -07002043 *
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002044 * Second pass (during init) to set up il->channel_info
Zhu Yib481de92007-09-25 17:54:57 -07002045 *
2046 * Set up Tx-power settings in our channel info database for each VALID
2047 * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
2048 * and current temperature.
2049 *
2050 * Since this is based on current temperature (at init time), these values may
2051 * not be valid for very long, but it gives us a starting/default point,
2052 * and allows us to active (i.e. using Tx) scan.
2053 *
2054 * This does *not* write values to NIC, just sets up our internal table.
2055 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002056int il3945_txpower_set_from_eeprom(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002057{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002058 struct il_channel_info *ch_info = NULL;
2059 struct il3945_channel_power_info *pwr_info;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002060 struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
Zhu Yib481de92007-09-25 17:54:57 -07002061 int delta_index;
2062 u8 rate_index;
2063 u8 scan_tbl_index;
2064 const s8 *clip_pwrs; /* array of power levels for each rate */
2065 u8 gain, dsp_atten;
2066 s8 power;
2067 u8 pwr_index, base_pwr_index, a_band;
2068 u8 i;
2069 int temperature;
2070
2071 /* save temperature reference,
2072 * so we can determine next time to calibrate */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002073 temperature = il3945_hw_reg_txpower_get_temperature(il);
2074 il->last_temperature = temperature;
Zhu Yib481de92007-09-25 17:54:57 -07002075
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002076 il3945_hw_reg_init_channel_groups(il);
Zhu Yib481de92007-09-25 17:54:57 -07002077
2078 /* initialize Tx power info for each and every channel, 2.4 and 5.x */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002079 for (i = 0, ch_info = il->channel_info; i < il->channel_count;
Zhu Yib481de92007-09-25 17:54:57 -07002080 i++, ch_info++) {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002081 a_band = il_is_channel_a_band(ch_info);
2082 if (!il_is_channel_valid(ch_info))
Zhu Yib481de92007-09-25 17:54:57 -07002083 continue;
2084
2085 /* find this channel's channel group (*not* "band") index */
2086 ch_info->group_index =
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002087 il3945_hw_reg_get_ch_grp_index(il, ch_info);
Zhu Yib481de92007-09-25 17:54:57 -07002088
2089 /* Get this chnlgrp's rate->max/clip-powers table */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002090 clip_pwrs = il->_3945.clip_groups[ch_info->group_index].clip_powers;
Zhu Yib481de92007-09-25 17:54:57 -07002091
2092 /* calculate power index *adjustment* value according to
2093 * diff between current temperature and factory temperature */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002094 delta_index = il3945_hw_reg_adjust_power_by_temp(temperature,
Samuel Ortize6148912009-01-23 13:45:15 -08002095 eeprom->groups[ch_info->group_index].
Zhu Yib481de92007-09-25 17:54:57 -07002096 temperature);
2097
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002098 D_POWER("Delta index for channel %d: %d [%d]\n",
Zhu Yib481de92007-09-25 17:54:57 -07002099 ch_info->channel, delta_index, temperature +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002100 IL_TEMP_CONVERT);
Zhu Yib481de92007-09-25 17:54:57 -07002101
2102 /* set tx power value for all OFDM rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002103 for (rate_index = 0; rate_index < IL_OFDM_RATES;
Zhu Yib481de92007-09-25 17:54:57 -07002104 rate_index++) {
John W. Linville25a4cce2009-01-12 14:44:52 -05002105 s32 uninitialized_var(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07002106 int rc;
2107
2108 /* use channel group's clip-power table,
2109 * but don't exceed channel's max power */
2110 s8 pwr = min(ch_info->max_power_avg,
2111 clip_pwrs[rate_index]);
2112
2113 pwr_info = &ch_info->power_info[rate_index];
2114
2115 /* get base (i.e. at factory-measured temperature)
2116 * power table index for this rate's power */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002117 rc = il3945_hw_reg_get_matched_power_index(il, pwr,
Zhu Yib481de92007-09-25 17:54:57 -07002118 ch_info->group_index,
2119 &power_idx);
2120 if (rc) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002121 IL_ERR("Invalid power index\n");
Zhu Yib481de92007-09-25 17:54:57 -07002122 return rc;
2123 }
2124 pwr_info->base_power_index = (u8) power_idx;
2125
2126 /* temperature compensate */
2127 power_idx += delta_index;
2128
2129 /* stay within range of gain table */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002130 power_idx = il3945_hw_reg_fix_power_index(power_idx);
Zhu Yib481de92007-09-25 17:54:57 -07002131
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002132 /* fill 1 OFDM rate's il3945_channel_power_info struct */
Zhu Yib481de92007-09-25 17:54:57 -07002133 pwr_info->requested_power = pwr;
2134 pwr_info->power_table_index = (u8) power_idx;
2135 pwr_info->tpc.tx_gain =
2136 power_gain_table[a_band][power_idx].tx_gain;
2137 pwr_info->tpc.dsp_atten =
2138 power_gain_table[a_band][power_idx].dsp_atten;
2139 }
2140
2141 /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002142 pwr_info = &ch_info->power_info[IL_RATE_12M_INDEX_TABLE];
Zhu Yib481de92007-09-25 17:54:57 -07002143 power = pwr_info->requested_power +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002144 IL_CCK_FROM_OFDM_POWER_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002145 pwr_index = pwr_info->power_table_index +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002146 IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002147 base_pwr_index = pwr_info->base_power_index +
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002148 IL_CCK_FROM_OFDM_INDEX_DIFF;
Zhu Yib481de92007-09-25 17:54:57 -07002149
2150 /* stay within table range */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002151 pwr_index = il3945_hw_reg_fix_power_index(pwr_index);
Zhu Yib481de92007-09-25 17:54:57 -07002152 gain = power_gain_table[a_band][pwr_index].tx_gain;
2153 dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
2154
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002155 /* fill each CCK rate's il3945_channel_power_info structure
Zhu Yib481de92007-09-25 17:54:57 -07002156 * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
2157 * NOTE: CCK rates start at end of OFDM rates! */
Mohamed Abbas14577f22007-11-12 11:37:42 +08002158 for (rate_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002159 rate_index < IL_CCK_RATES; rate_index++) {
2160 pwr_info = &ch_info->power_info[rate_index+IL_OFDM_RATES];
Zhu Yib481de92007-09-25 17:54:57 -07002161 pwr_info->requested_power = power;
2162 pwr_info->power_table_index = pwr_index;
2163 pwr_info->base_power_index = base_pwr_index;
2164 pwr_info->tpc.tx_gain = gain;
2165 pwr_info->tpc.dsp_atten = dsp_atten;
2166 }
2167
2168 /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
2169 for (scan_tbl_index = 0;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002170 scan_tbl_index < IL_NUM_SCAN_RATES; scan_tbl_index++) {
Zhu Yib481de92007-09-25 17:54:57 -07002171 s32 actual_index = (scan_tbl_index == 0) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002172 IL_RATE_1M_INDEX_TABLE : IL_RATE_6M_INDEX_TABLE;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002173 il3945_hw_reg_set_scan_power(il, scan_tbl_index,
Zhu Yib481de92007-09-25 17:54:57 -07002174 actual_index, clip_pwrs, ch_info, a_band);
2175 }
2176 }
2177
2178 return 0;
2179}
2180
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002181int il3945_hw_rxq_stop(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002182{
2183 int rc;
Zhu Yib481de92007-09-25 17:54:57 -07002184
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002185 il_wr(il, FH39_RCSR_CONFIG(0), 0);
2186 rc = il_poll_bit(il, FH39_RSSR_STATUS,
Tomas Winklerbddadf82008-12-19 10:37:01 +08002187 FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
Zhu Yib481de92007-09-25 17:54:57 -07002188 if (rc < 0)
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002189 IL_ERR("Can't stop Rx DMA.\n");
Zhu Yib481de92007-09-25 17:54:57 -07002190
Zhu Yib481de92007-09-25 17:54:57 -07002191 return 0;
2192}
2193
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002194int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq)
Zhu Yib481de92007-09-25 17:54:57 -07002195{
Zhu Yib481de92007-09-25 17:54:57 -07002196 int txq_id = txq->q.id;
2197
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002198 struct il3945_shared *shared_data = il->_3945.shared_virt;
Zhu Yib481de92007-09-25 17:54:57 -07002199
2200 shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
2201
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002202 il_wr(il, FH39_CBCC_CTRL(txq_id), 0);
2203 il_wr(il, FH39_CBCC_BASE(txq_id), 0);
Zhu Yib481de92007-09-25 17:54:57 -07002204
Stanislaw Gruszka0c1a94e2011-08-24 17:37:16 +02002205 il_wr(il, FH39_TCSR_CONFIG(txq_id),
Tomas Winklerbddadf82008-12-19 10:37:01 +08002206 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
2207 FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
2208 FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
2209 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
2210 FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
Zhu Yib481de92007-09-25 17:54:57 -07002211
2212 /* fake read to flush all prev. writes */
Stanislaw Gruszka841b2cc2011-08-24 15:14:03 +02002213 _il_rd(il, FH39_TSSR_CBB_BASE);
Zhu Yib481de92007-09-25 17:54:57 -07002214
2215 return 0;
2216}
2217
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002218/*
2219 * HCMD utils
2220 */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002221static u16 il3945_get_hcmd_size(u8 cmd_id, u16 len)
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002222{
2223 switch (cmd_id) {
2224 case REPLY_RXON:
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002225 return sizeof(struct il3945_rxon_cmd);
Winkler, Tomasd25aabb2009-01-27 14:27:58 -08002226 case POWER_TABLE_CMD:
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002227 return sizeof(struct il3945_powertable_cmd);
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002228 default:
2229 return len;
2230 }
2231}
2232
Tomas Winklerc587de02009-06-03 11:44:07 -07002233
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002234static u16 il3945_build_addsta_hcmd(const struct il_addsta_cmd *cmd,
Wey-Yi Guybe663ab2011-02-21 11:27:26 -08002235 u8 *data)
Samuel Ortiz17f841c2009-01-23 13:45:20 -08002236{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002237 struct il3945_addsta_cmd *addsta = (struct il3945_addsta_cmd *)data;
Tomas Winklerc587de02009-06-03 11:44:07 -07002238 addsta->mode = cmd->mode;
2239 memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002240 memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo));
Tomas Winklerc587de02009-06-03 11:44:07 -07002241 addsta->station_flags = cmd->station_flags;
2242 addsta->station_flags_msk = cmd->station_flags_msk;
2243 addsta->tid_disable_tx = cpu_to_le16(0);
2244 addsta->rate_n_flags = cmd->rate_n_flags;
2245 addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
2246 addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
2247 addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
2248
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002249 return (u16)sizeof(struct il3945_addsta_cmd);
Samuel Ortiz17f841c2009-01-23 13:45:20 -08002250}
2251
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002252static int il3945_add_bssid_station(struct il_priv *il,
Johannes Berga30e3112010-09-22 18:02:01 +02002253 const u8 *addr, u8 *sta_id_r)
2254{
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01002255 struct il_rxon_context *ctx = &il->ctx;
Johannes Berga30e3112010-09-22 18:02:01 +02002256 int ret;
2257 u8 sta_id;
2258 unsigned long flags;
2259
2260 if (sta_id_r)
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002261 *sta_id_r = IL_INVALID_STATION;
Johannes Berga30e3112010-09-22 18:02:01 +02002262
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002263 ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
Johannes Berga30e3112010-09-22 18:02:01 +02002264 if (ret) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002265 IL_ERR("Unable to add station %pM\n", addr);
Johannes Berga30e3112010-09-22 18:02:01 +02002266 return ret;
2267 }
2268
2269 if (sta_id_r)
2270 *sta_id_r = sta_id;
2271
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002272 spin_lock_irqsave(&il->sta_lock, flags);
2273 il->stations[sta_id].used |= IL_STA_LOCAL;
2274 spin_unlock_irqrestore(&il->sta_lock, flags);
Johannes Berga30e3112010-09-22 18:02:01 +02002275
2276 return 0;
2277}
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002278static int il3945_manage_ibss_station(struct il_priv *il,
Johannes Berg1fa61b22010-04-28 08:44:52 -07002279 struct ieee80211_vif *vif, bool add)
2280{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002281 struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
Johannes Berg1fa61b22010-04-28 08:44:52 -07002282 int ret;
2283
Johannes Berg1fa61b22010-04-28 08:44:52 -07002284 if (add) {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002285 ret = il3945_add_bssid_station(il, vif->bss_conf.bssid,
Johannes Berga30e3112010-09-22 18:02:01 +02002286 &vif_priv->ibss_bssid_sta_id);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002287 if (ret)
2288 return ret;
2289
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002290 il3945_sync_sta(il, vif_priv->ibss_bssid_sta_id,
2291 (il->band == IEEE80211_BAND_5GHZ) ?
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002292 IL_RATE_6M_PLCP : IL_RATE_1M_PLCP);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002293 il3945_rate_scale_init(il->hw, vif_priv->ibss_bssid_sta_id);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002294
2295 return 0;
2296 }
2297
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002298 return il_remove_station(il, vif_priv->ibss_bssid_sta_id,
Johannes Bergfd1af152010-04-30 11:30:43 -07002299 vif->bss_conf.bssid);
Johannes Berg1fa61b22010-04-28 08:44:52 -07002300}
Tomas Winklerc587de02009-06-03 11:44:07 -07002301
Zhu Yib481de92007-09-25 17:54:57 -07002302/**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002303 * il3945_init_hw_rate_table - Initialize the hardware rate fallback table
Zhu Yib481de92007-09-25 17:54:57 -07002304 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002305int il3945_init_hw_rate_table(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002306{
Mohamed Abbas14577f22007-11-12 11:37:42 +08002307 int rc, i, index, prev_index;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002308 struct il3945_rate_scaling_cmd rate_cmd = {
Zhu Yib481de92007-09-25 17:54:57 -07002309 .reserved = {0, 0, 0},
2310 };
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002311 struct il3945_rate_scaling_info *table = rate_cmd.table;
Zhu Yib481de92007-09-25 17:54:57 -07002312
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002313 for (i = 0; i < ARRAY_SIZE(il3945_rates); i++) {
2314 index = il3945_rates[i].table_rs_index;
Mohamed Abbas14577f22007-11-12 11:37:42 +08002315
2316 table[index].rate_n_flags =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002317 il3945_hw_set_rate_n_flags(il3945_rates[i].plcp, 0);
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002318 table[index].try_cnt = il->retry_rate;
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002319 prev_index = il3945_get_prev_ieee_rate(i);
Abbas, Mohamed72627962008-12-05 07:58:37 -08002320 table[index].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002321 il3945_rates[prev_index].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002322 }
2323
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002324 switch (il->band) {
Johannes Berg8318d782008-01-24 19:38:38 +01002325 case IEEE80211_BAND_5GHZ:
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002326 D_RATE("Select A mode rate scale\n");
Zhu Yib481de92007-09-25 17:54:57 -07002327 /* If one of the following CCK rates is used,
2328 * have it fall back to the 6M OFDM rate */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002329 for (i = IL_RATE_1M_INDEX_TABLE;
2330 i <= IL_RATE_11M_INDEX_TABLE; i++)
Abbas, Mohamed72627962008-12-05 07:58:37 -08002331 table[i].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002332 il3945_rates[IL_FIRST_OFDM_RATE].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002333
2334 /* Don't fall back to CCK rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002335 table[IL_RATE_12M_INDEX_TABLE].next_rate_index =
2336 IL_RATE_9M_INDEX_TABLE;
Zhu Yib481de92007-09-25 17:54:57 -07002337
2338 /* Don't drop out of OFDM rates */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002339 table[IL_RATE_6M_INDEX_TABLE].next_rate_index =
2340 il3945_rates[IL_FIRST_OFDM_RATE].table_rs_index;
Zhu Yib481de92007-09-25 17:54:57 -07002341 break;
2342
Johannes Berg8318d782008-01-24 19:38:38 +01002343 case IEEE80211_BAND_2GHZ:
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002344 D_RATE("Select B/G mode rate scale\n");
Zhu Yib481de92007-09-25 17:54:57 -07002345 /* If an OFDM rate is used, have it fall back to the
2346 * 1M CCK rates */
Zhu Yib481de92007-09-25 17:54:57 -07002347
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002348 if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) &&
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01002349 il_is_associated(il)) {
Abbas, Mohamed72627962008-12-05 07:58:37 -08002350
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002351 index = IL_FIRST_CCK_RATE;
2352 for (i = IL_RATE_6M_INDEX_TABLE;
2353 i <= IL_RATE_54M_INDEX_TABLE; i++)
Abbas, Mohamed72627962008-12-05 07:58:37 -08002354 table[i].next_rate_index =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002355 il3945_rates[index].table_rs_index;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002356
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002357 index = IL_RATE_11M_INDEX_TABLE;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002358 /* CCK shouldn't fall back to OFDM... */
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002359 table[index].next_rate_index = IL_RATE_5M_INDEX_TABLE;
Abbas, Mohamed72627962008-12-05 07:58:37 -08002360 }
Zhu Yib481de92007-09-25 17:54:57 -07002361 break;
2362
2363 default:
Johannes Berg8318d782008-01-24 19:38:38 +01002364 WARN_ON(1);
Zhu Yib481de92007-09-25 17:54:57 -07002365 break;
2366 }
2367
2368 /* Update the rate scaling for control frame Tx */
2369 rate_cmd.table_id = 0;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002370 rc = il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd),
Zhu Yib481de92007-09-25 17:54:57 -07002371 &rate_cmd);
2372 if (rc)
2373 return rc;
2374
2375 /* Update the rate scaling for data frame Tx */
2376 rate_cmd.table_id = 1;
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002377 return il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd),
Zhu Yib481de92007-09-25 17:54:57 -07002378 &rate_cmd);
2379}
2380
Ben Cahill796083c2007-11-29 11:09:45 +08002381/* Called when initializing driver */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002382int il3945_hw_set_hw_params(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002383{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002384 memset((void *)&il->hw_params, 0,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002385 sizeof(struct il_hw_params));
Zhu Yib481de92007-09-25 17:54:57 -07002386
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002387 il->_3945.shared_virt =
2388 dma_alloc_coherent(&il->pci_dev->dev,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002389 sizeof(struct il3945_shared),
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002390 &il->_3945.shared_phys, GFP_KERNEL);
2391 if (!il->_3945.shared_virt) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002392 IL_ERR("failed to allocate pci memory\n");
Zhu Yib481de92007-09-25 17:54:57 -07002393 return -ENOMEM;
2394 }
2395
Abhijeet Kolekar21c02a12009-03-17 21:51:48 -07002396 /* Assign number of Usable TX queues */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002397 il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues;
Abhijeet Kolekar21c02a12009-03-17 21:51:48 -07002398
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002399 il->hw_params.tfd_size = sizeof(struct il3945_tfd);
2400 il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_3K);
2401 il->hw_params.max_rxq_size = RX_QUEUE_SIZE;
2402 il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002403 il->hw_params.max_stations = IL3945_STATION_COUNT;
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01002404 il->ctx.bcast_sta_id = IL3945_BROADCAST_ID;
Tomas Winkler3e82a822008-02-13 11:32:31 -08002405
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002406 il->sta_key_max_num = STA_KEY_MAX_NUM;
Johannes Bergc10afb62010-08-23 10:46:43 +02002407
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002408 il->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002409 il->hw_params.max_beacon_itrvl = IL39_MAX_UCODE_BEACON_INTERVAL;
2410 il->hw_params.beacon_time_tsf_bits = IL3945_EXT_BEACON_TIME_POS;
Winkler, Tomas141c43a2009-01-08 10:19:53 -08002411
Zhu Yib481de92007-09-25 17:54:57 -07002412 return 0;
2413}
2414
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002415unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002416 struct il3945_frame *frame, u8 rate)
Zhu Yib481de92007-09-25 17:54:57 -07002417{
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002418 struct il3945_tx_beacon_cmd *tx_beacon_cmd;
Zhu Yib481de92007-09-25 17:54:57 -07002419 unsigned int frame_size;
2420
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002421 tx_beacon_cmd = (struct il3945_tx_beacon_cmd *)&frame->u;
Zhu Yib481de92007-09-25 17:54:57 -07002422 memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
2423
Johannes Berga194e322010-08-27 08:53:46 -07002424 tx_beacon_cmd->tx.sta_id =
Stanislaw Gruszka7c2cde22011-11-15 11:29:04 +01002425 il->ctx.bcast_sta_id;
Zhu Yib481de92007-09-25 17:54:57 -07002426 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2427
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002428 frame_size = il3945_fill_beacon_frame(il,
Zhu Yib481de92007-09-25 17:54:57 -07002429 tx_beacon_cmd->frame,
Zhu Yib481de92007-09-25 17:54:57 -07002430 sizeof(frame->u) - sizeof(*tx_beacon_cmd));
2431
2432 BUG_ON(frame_size > MAX_MPDU_SIZE);
2433 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
2434
2435 tx_beacon_cmd->tx.rate = rate;
2436 tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
2437 TX_CMD_FLG_TSF_MSK);
2438
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002439 /* supp_rates[0] == OFDM start at IL_FIRST_OFDM_RATE*/
Mohamed Abbas14577f22007-11-12 11:37:42 +08002440 tx_beacon_cmd->tx.supp_rates[0] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002441 (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF;
Zhu Yib481de92007-09-25 17:54:57 -07002442
Zhu Yib481de92007-09-25 17:54:57 -07002443 tx_beacon_cmd->tx.supp_rates[1] =
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002444 (IL_CCK_BASIC_RATES_MASK & 0xF);
Zhu Yib481de92007-09-25 17:54:57 -07002445
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002446 return sizeof(struct il3945_tx_beacon_cmd) + frame_size;
Zhu Yib481de92007-09-25 17:54:57 -07002447}
2448
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002449void il3945_hw_rx_handler_setup(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002450{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002451 il->rx_handlers[REPLY_TX] = il3945_rx_reply_tx;
2452 il->rx_handlers[REPLY_3945_RX] = il3945_rx_reply_rx;
Zhu Yib481de92007-09-25 17:54:57 -07002453}
2454
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002455void il3945_hw_setup_deferred_work(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002456{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002457 INIT_DELAYED_WORK(&il->_3945.thermal_periodic,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002458 il3945_bg_reg_txpower_periodic);
Zhu Yib481de92007-09-25 17:54:57 -07002459}
2460
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002461void il3945_hw_cancel_deferred_work(struct il_priv *il)
Zhu Yib481de92007-09-25 17:54:57 -07002462{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002463 cancel_delayed_work(&il->_3945.thermal_periodic);
Zhu Yib481de92007-09-25 17:54:57 -07002464}
2465
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002466/* check contents of special bootstrap uCode SRAM */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002467static int il3945_verify_bsm(struct il_priv *il)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002468 {
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002469 __le32 *image = il->ucode_boot.v_addr;
2470 u32 len = il->ucode_boot.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002471 u32 reg;
2472 u32 val;
2473
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002474 D_INFO("Begin verify bsm\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002475
2476 /* verify BSM SRAM contents */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002477 val = il_rd_prph(il, BSM_WR_DWCOUNT_REG);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002478 for (reg = BSM_SRAM_LOWER_BOUND;
2479 reg < BSM_SRAM_LOWER_BOUND + len;
2480 reg += sizeof(u32), image++) {
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002481 val = il_rd_prph(il, reg);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002482 if (val != le32_to_cpu(*image)) {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002483 IL_ERR("BSM uCode verification failed at "
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002484 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
2485 BSM_SRAM_LOWER_BOUND,
2486 reg - BSM_SRAM_LOWER_BOUND, len,
2487 val, le32_to_cpu(*image));
2488 return -EIO;
2489 }
2490 }
2491
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002492 D_INFO("BSM bootstrap uCode image OK\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002493
2494 return 0;
2495}
2496
Samuel Ortize6148912009-01-23 13:45:15 -08002497
2498/******************************************************************************
2499 *
2500 * EEPROM related functions
2501 *
2502 ******************************************************************************/
2503
2504/*
2505 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
2506 * embedded controller) as EEPROM reader; each read is a series of pulses
2507 * to/from the EEPROM chip, not a single event, so even reads could conflict
2508 * if they weren't arbitrated by some ownership mechanism. Here, the driver
2509 * simply claims ownership, which should be safe when this function is called
2510 * (i.e. before loading uCode!).
2511 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002512static int il3945_eeprom_acquire_semaphore(struct il_priv *il)
Samuel Ortize6148912009-01-23 13:45:15 -08002513{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002514 _il_clear_bit(il, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
Samuel Ortize6148912009-01-23 13:45:15 -08002515 return 0;
2516}
2517
2518
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002519static void il3945_eeprom_release_semaphore(struct il_priv *il)
Samuel Ortize6148912009-01-23 13:45:15 -08002520{
2521 return;
2522}
2523
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002524 /**
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002525 * il3945_load_bsm - Load bootstrap instructions
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002526 *
2527 * BSM operation:
2528 *
2529 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
2530 * in special SRAM that does not power down during RFKILL. When powering back
2531 * up after power-saving sleeps (or during initial uCode load), the BSM loads
2532 * the bootstrap program into the on-board processor, and starts it.
2533 *
2534 * The bootstrap program loads (via DMA) instructions and data for a new
2535 * program from host DRAM locations indicated by the host driver in the
2536 * BSM_DRAM_* registers. Once the new program is loaded, it starts
2537 * automatically.
2538 *
2539 * When initializing the NIC, the host driver points the BSM to the
2540 * "initialize" uCode image. This uCode sets up some internal data, then
2541 * notifies host via "initialize alive" that it is complete.
2542 *
2543 * The host then replaces the BSM_DRAM_* pointer values to point to the
2544 * normal runtime uCode instructions and a backup uCode data cache buffer
2545 * (filled initially with starting data values for the on-board processor),
2546 * then triggers the "initialize" uCode to load and launch the runtime uCode,
2547 * which begins normal operation.
2548 *
2549 * When doing a power-save shutdown, runtime uCode saves data SRAM into
2550 * the backup data cache in DRAM before SRAM is powered down.
2551 *
2552 * When powering back up, the BSM loads the bootstrap program. This reloads
2553 * the runtime uCode instructions and the backup data cache into SRAM,
2554 * and re-launches the runtime uCode from where it left off.
2555 */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002556static int il3945_load_bsm(struct il_priv *il)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002557{
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002558 __le32 *image = il->ucode_boot.v_addr;
2559 u32 len = il->ucode_boot.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002560 dma_addr_t pinst;
2561 dma_addr_t pdata;
2562 u32 inst_len;
2563 u32 data_len;
2564 int rc;
2565 int i;
2566 u32 done;
2567 u32 reg_offset;
2568
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002569 D_INFO("Begin load bsm\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002570
2571 /* make sure bootstrap program is no larger than BSM's SRAM size */
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002572 if (len > IL39_MAX_BSM_SIZE)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002573 return -EINVAL;
2574
2575 /* Tell bootstrap uCode where to find the "Initialize" uCode
2576 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002577 * NOTE: il3945_initialize_alive_start() will replace these values,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002578 * after the "initialize" uCode has run, to point to
2579 * runtime/protocol instructions and backup data cache. */
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002580 pinst = il->ucode_init.p_addr;
2581 pdata = il->ucode_init_data.p_addr;
2582 inst_len = il->ucode_init.len;
2583 data_len = il->ucode_init_data.len;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002584
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002585 il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
2586 il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
2587 il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
2588 il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002589
2590 /* Fill BSM memory with bootstrap instructions */
2591 for (reg_offset = BSM_SRAM_LOWER_BOUND;
2592 reg_offset < BSM_SRAM_LOWER_BOUND + len;
2593 reg_offset += sizeof(u32), image++)
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002594 _il_wr_prph(il, reg_offset,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002595 le32_to_cpu(*image));
2596
Stanislaw Gruszka46bc8d42011-10-24 16:49:25 +02002597 rc = il3945_verify_bsm(il);
Mohamed Abbasa8b50a02009-05-22 11:01:47 -07002598 if (rc)
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002599 return rc;
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002600
2601 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002602 il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0);
2603 il_wr_prph(il, BSM_WR_MEM_DST_REG,
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002604 IL39_RTC_INST_LOWER_BOUND);
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002605 il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002606
2607 /* Load bootstrap code into instruction SRAM now,
2608 * to prepare to load "initialize" uCode */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002609 il_wr_prph(il, BSM_WR_CTRL_REG,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002610 BSM_WR_CTRL_REG_BIT_START);
2611
2612 /* Wait for load of bootstrap uCode to finish */
2613 for (i = 0; i < 100; i++) {
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002614 done = il_rd_prph(il, BSM_WR_CTRL_REG);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002615 if (!(done & BSM_WR_CTRL_REG_BIT_START))
2616 break;
2617 udelay(10);
2618 }
2619 if (i < 100)
Stanislaw Gruszka58de00a2011-11-15 11:21:01 +01002620 D_INFO("BSM write complete, poll %d iterations\n", i);
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002621 else {
Stanislaw Gruszka9406f792011-08-18 22:07:57 +02002622 IL_ERR("BSM write did not complete!\n");
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002623 return -EIO;
2624 }
2625
2626 /* Enable future boot loads whenever power management unit triggers it
2627 * (e.g. when powering back up after power-save shutdown) */
Stanislaw Gruszkadb54eb52011-08-24 21:06:33 +02002628 il_wr_prph(il, BSM_WR_CTRL_REG,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002629 BSM_WR_CTRL_REG_BIT_START_EN);
2630
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002631 return 0;
2632}
2633
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002634static struct il_hcmd_ops il3945_hcmd = {
2635 .rxon_assoc = il3945_send_rxon_assoc,
2636 .commit_rxon = il3945_commit_rxon,
Abhijeet Kolekar5bbe2332009-04-08 11:26:35 -07002637};
2638
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002639static struct il_lib_ops il3945_lib = {
2640 .txq_attach_buf_to_tfd = il3945_hw_txq_attach_buf_to_tfd,
2641 .txq_free_tfd = il3945_hw_txq_free_tfd,
2642 .txq_init = il3945_hw_tx_queue_init,
2643 .load_ucode = il3945_load_bsm,
2644 .dump_nic_error_log = il3945_dump_nic_error_log,
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +08002645 .apm_ops = {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002646 .init = il3945_apm_init,
2647 .config = il3945_nic_config,
Kolekar, Abhijeet01ec6162008-12-19 10:37:38 +08002648 },
Samuel Ortize6148912009-01-23 13:45:15 -08002649 .eeprom_ops = {
2650 .regulatory_bands = {
2651 EEPROM_REGULATORY_BAND_1_CHANNELS,
2652 EEPROM_REGULATORY_BAND_2_CHANNELS,
2653 EEPROM_REGULATORY_BAND_3_CHANNELS,
2654 EEPROM_REGULATORY_BAND_4_CHANNELS,
2655 EEPROM_REGULATORY_BAND_5_CHANNELS,
Wey-Yi Guy7aafef12009-08-07 15:41:38 -07002656 EEPROM_REGULATORY_BAND_NO_HT40,
2657 EEPROM_REGULATORY_BAND_NO_HT40,
Samuel Ortize6148912009-01-23 13:45:15 -08002658 },
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002659 .acquire_semaphore = il3945_eeprom_acquire_semaphore,
2660 .release_semaphore = il3945_eeprom_release_semaphore,
Samuel Ortize6148912009-01-23 13:45:15 -08002661 },
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002662 .send_tx_power = il3945_send_tx_power,
2663 .is_valid_rtc_data_addr = il3945_hw_valid_rtc_data_addr,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -07002664
2665 .debugfs_ops = {
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002666 .rx_stats_read = il3945_ucode_rx_stats_read,
2667 .tx_stats_read = il3945_ucode_tx_stats_read,
2668 .general_stats_read = il3945_ucode_general_stats_read,
Abhijeet Kolekar17f36fc2010-04-16 10:03:54 -07002669 },
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002670};
2671
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002672static const struct il_legacy_ops il3945_legacy_ops = {
2673 .post_associate = il3945_post_associate,
2674 .config_ap = il3945_config_ap,
2675 .manage_ibss_station = il3945_manage_ibss_station,
Johannes Berg2295c662010-10-23 09:15:41 -07002676};
2677
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002678static struct il_hcmd_utils_ops il3945_hcmd_utils = {
2679 .get_hcmd_size = il3945_get_hcmd_size,
2680 .build_addsta_hcmd = il3945_build_addsta_hcmd,
2681 .request_scan = il3945_request_scan,
2682 .post_scan = il3945_post_scan,
Kolekar, Abhijeet42427b42008-12-22 11:31:15 +08002683};
2684
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002685static const struct il_ops il3945_ops = {
2686 .lib = &il3945_lib,
2687 .hcmd = &il3945_hcmd,
2688 .utils = &il3945_hcmd_utils,
2689 .led = &il3945_led_ops,
2690 .legacy = &il3945_legacy_ops,
2691 .ieee80211_ops = &il3945_hw_ops,
Kolekar, Abhijeet0164b9b2008-12-19 10:37:37 +08002692};
2693
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002694static struct il_base_params il3945_base_params = {
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002695 .eeprom_size = IL3945_EEPROM_IMG_SIZE,
2696 .num_of_queues = IL39_NUM_QUEUES,
Ben Cahillfadb3582009-10-23 13:42:21 -07002697 .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
2698 .set_l0s = false,
2699 .use_bsm = true,
Wey-Yi Guyf2d0d0e2009-09-11 10:38:14 -07002700 .led_compensation = 64,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002701 .wd_timeout = IL_DEF_WD_TIMEOUT,
Tomas Winkler82b9a122008-03-04 18:09:30 -08002702};
2703
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002704static struct il_cfg il3945_bg_cfg = {
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002705 .name = "3945BG",
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002706 .fw_name_pre = IL3945_FW_PRE,
2707 .ucode_api_max = IL3945_UCODE_API_MAX,
2708 .ucode_api_min = IL3945_UCODE_API_MIN,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002709 .sku = IL_SKU_G,
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002710 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002711 .ops = &il3945_ops,
2712 .mod_params = &il3945_mod_params,
2713 .base_params = &il3945_base_params,
2714 .led_mode = IL_LED_BLINK,
Wey-Yi Guy7cb1b082010-10-06 08:10:00 -07002715};
2716
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002717static struct il_cfg il3945_abg_cfg = {
Tomas Winkler82b9a122008-03-04 18:09:30 -08002718 .name = "3945ABG",
Stanislaw Gruszkad3175162011-11-15 11:25:42 +01002719 .fw_name_pre = IL3945_FW_PRE,
2720 .ucode_api_max = IL3945_UCODE_API_MAX,
2721 .ucode_api_min = IL3945_UCODE_API_MIN,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002722 .sku = IL_SKU_A|IL_SKU_G,
Samuel Ortize6148912009-01-23 13:45:15 -08002723 .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002724 .ops = &il3945_ops,
2725 .mod_params = &il3945_mod_params,
2726 .base_params = &il3945_base_params,
2727 .led_mode = IL_LED_BLINK,
Tomas Winkler82b9a122008-03-04 18:09:30 -08002728};
2729
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002730DEFINE_PCI_DEVICE_TABLE(il3945_hw_card_ids) = {
2731 {IL_PCI_DEVICE(0x4222, 0x1005, il3945_bg_cfg)},
2732 {IL_PCI_DEVICE(0x4222, 0x1034, il3945_bg_cfg)},
2733 {IL_PCI_DEVICE(0x4222, 0x1044, il3945_bg_cfg)},
2734 {IL_PCI_DEVICE(0x4227, 0x1014, il3945_bg_cfg)},
2735 {IL_PCI_DEVICE(0x4222, PCI_ANY_ID, il3945_abg_cfg)},
2736 {IL_PCI_DEVICE(0x4227, PCI_ANY_ID, il3945_abg_cfg)},
Zhu Yib481de92007-09-25 17:54:57 -07002737 {0}
2738};
2739
Stanislaw Gruszkae2ebc832011-10-24 15:41:30 +02002740MODULE_DEVICE_TABLE(pci, il3945_hw_card_ids);