Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of version 2 of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 17 | * |
| 18 | * The full GNU General Public License is included in this distribution in the |
| 19 | * file called LICENSE. |
| 20 | * |
| 21 | * Contact Information: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 22 | * Intel Linux Wireless <ilw@linux.intel.com> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 24 | * |
| 25 | *****************************************************************************/ |
| 26 | |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/module.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 29 | #include <linux/init.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 30 | #include <linux/slab.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 31 | #include <linux/pci.h> |
| 32 | #include <linux/dma-mapping.h> |
| 33 | #include <linux/delay.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 34 | #include <linux/sched.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 35 | #include <linux/skbuff.h> |
| 36 | #include <linux/netdevice.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 37 | #include <linux/firmware.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 38 | #include <linux/etherdevice.h> |
Zhu Yi | 12342c4 | 2007-12-20 11:27:32 +0800 | [diff] [blame] | 39 | #include <asm/unaligned.h> |
| 40 | #include <net/mac80211.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 41 | |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 42 | #include "iwl-fh.h" |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 43 | #include "iwl-3945-fh.h" |
Tomas Winkler | 600c0e1 | 2008-12-19 10:37:04 +0800 | [diff] [blame] | 44 | #include "iwl-commands.h" |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 45 | #include "iwl-sta.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 46 | #include "iwl-3945.h" |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 47 | #include "iwl-eeprom.h" |
Kolekar, Abhijeet | 5747d47 | 2008-12-19 10:37:18 +0800 | [diff] [blame] | 48 | #include "iwl-core.h" |
Reinette Chatre | 4a6547c | 2010-02-18 22:03:02 -0800 | [diff] [blame] | 49 | #include "iwl-helpers.h" |
Johannes Berg | e932a60 | 2009-10-02 13:44:03 -0700 | [diff] [blame] | 50 | #include "iwl-led.h" |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 51 | #include "iwl-3945-debugfs.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 52 | |
Stanislaw Gruszka | ecce1f0 | 2011-08-29 17:05:28 +0200 | [diff] [blame^] | 53 | /* Send led command */ |
| 54 | static int il3945_send_led_cmd(struct il_priv *il, |
| 55 | struct il_led_cmd *led_cmd) |
| 56 | { |
| 57 | struct il_host_cmd cmd = { |
| 58 | .id = REPLY_LEDS_CMD, |
| 59 | .len = sizeof(struct il_led_cmd), |
| 60 | .data = led_cmd, |
| 61 | .flags = CMD_ASYNC, |
| 62 | .callback = NULL, |
| 63 | }; |
| 64 | |
| 65 | return il_send_cmd(il, &cmd); |
| 66 | } |
| 67 | |
| 68 | const struct il_led_ops il3945_led_ops = { |
| 69 | .cmd = il3945_send_led_cmd, |
| 70 | }; |
| 71 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 72 | #define IL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \ |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 73 | [RATE_##r##M_IDX] = { RATE_##r##M_PLCP, \ |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 74 | RATE_##r##M_IEEE, \ |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 75 | RATE_##ip##M_IDX, \ |
| 76 | RATE_##in##M_IDX, \ |
| 77 | RATE_##rp##M_IDX, \ |
| 78 | RATE_##rn##M_IDX, \ |
| 79 | RATE_##pp##M_IDX, \ |
| 80 | RATE_##np##M_IDX, \ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 81 | RATE_##r##M_IDX_TBL, \ |
| 82 | RATE_##ip##M_IDX_TBL } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 83 | |
| 84 | /* |
| 85 | * Parameter order: |
| 86 | * rate, prev rate, next rate, prev tgg rate, next tgg rate |
| 87 | * |
| 88 | * If there isn't a valid next or previous rate then INV is used which |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 89 | * maps to RATE_INVALID |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 90 | * |
| 91 | */ |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 92 | const struct il3945_rate_info il3945_rates[RATE_COUNT_3945] = { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 93 | IL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
| 94 | IL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */ |
| 95 | IL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */ |
| 96 | IL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */ |
| 97 | IL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */ |
| 98 | IL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */ |
| 99 | IL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */ |
| 100 | IL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */ |
| 101 | IL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */ |
| 102 | IL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */ |
| 103 | IL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */ |
| 104 | IL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 107 | static inline u8 il3945_get_prev_ieee_rate(u8 rate_idx) |
Johannes Berg | 635b85b | 2010-09-22 18:02:04 +0200 | [diff] [blame] | 108 | { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 109 | u8 rate = il3945_rates[rate_idx].prev_ieee; |
Johannes Berg | 635b85b | 2010-09-22 18:02:04 +0200 | [diff] [blame] | 110 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 111 | if (rate == RATE_INVALID) |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 112 | rate = rate_idx; |
Johannes Berg | 635b85b | 2010-09-22 18:02:04 +0200 | [diff] [blame] | 113 | return rate; |
| 114 | } |
| 115 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 116 | /* 1 = enable the il3945_disable_events() function */ |
| 117 | #define IL_EVT_DISABLE (0) |
| 118 | #define IL_EVT_DISABLE_SIZE (1532/32) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 119 | |
| 120 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 121 | * il3945_disable_events - Disable selected events in uCode event log |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 122 | * |
| 123 | * Disable an event by writing "1"s into "disable" |
| 124 | * bitmap in SRAM. Bit position corresponds to Event # (id/type). |
| 125 | * Default values of 0 enable uCode events to be logged. |
| 126 | * Use for only special debugging. This function is just a placeholder as-is, |
| 127 | * you'll need to provide the special bits! ... |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 128 | * ... and set IL_EVT_DISABLE to 1. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 129 | void il3945_disable_events(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 130 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 131 | int i; |
| 132 | u32 base; /* SRAM address of event log header */ |
| 133 | u32 disable_ptr; /* SRAM address of event-disable bitmap array */ |
| 134 | u32 array_size; /* # of u32 entries in array */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 135 | static const u32 evt_disable[IL_EVT_DISABLE_SIZE] = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 136 | 0x00000000, /* 31 - 0 Event id numbers */ |
| 137 | 0x00000000, /* 63 - 32 */ |
| 138 | 0x00000000, /* 95 - 64 */ |
| 139 | 0x00000000, /* 127 - 96 */ |
| 140 | 0x00000000, /* 159 - 128 */ |
| 141 | 0x00000000, /* 191 - 160 */ |
| 142 | 0x00000000, /* 223 - 192 */ |
| 143 | 0x00000000, /* 255 - 224 */ |
| 144 | 0x00000000, /* 287 - 256 */ |
| 145 | 0x00000000, /* 319 - 288 */ |
| 146 | 0x00000000, /* 351 - 320 */ |
| 147 | 0x00000000, /* 383 - 352 */ |
| 148 | 0x00000000, /* 415 - 384 */ |
| 149 | 0x00000000, /* 447 - 416 */ |
| 150 | 0x00000000, /* 479 - 448 */ |
| 151 | 0x00000000, /* 511 - 480 */ |
| 152 | 0x00000000, /* 543 - 512 */ |
| 153 | 0x00000000, /* 575 - 544 */ |
| 154 | 0x00000000, /* 607 - 576 */ |
| 155 | 0x00000000, /* 639 - 608 */ |
| 156 | 0x00000000, /* 671 - 640 */ |
| 157 | 0x00000000, /* 703 - 672 */ |
| 158 | 0x00000000, /* 735 - 704 */ |
| 159 | 0x00000000, /* 767 - 736 */ |
| 160 | 0x00000000, /* 799 - 768 */ |
| 161 | 0x00000000, /* 831 - 800 */ |
| 162 | 0x00000000, /* 863 - 832 */ |
| 163 | 0x00000000, /* 895 - 864 */ |
| 164 | 0x00000000, /* 927 - 896 */ |
| 165 | 0x00000000, /* 959 - 928 */ |
| 166 | 0x00000000, /* 991 - 960 */ |
| 167 | 0x00000000, /* 1023 - 992 */ |
| 168 | 0x00000000, /* 1055 - 1024 */ |
| 169 | 0x00000000, /* 1087 - 1056 */ |
| 170 | 0x00000000, /* 1119 - 1088 */ |
| 171 | 0x00000000, /* 1151 - 1120 */ |
| 172 | 0x00000000, /* 1183 - 1152 */ |
| 173 | 0x00000000, /* 1215 - 1184 */ |
| 174 | 0x00000000, /* 1247 - 1216 */ |
| 175 | 0x00000000, /* 1279 - 1248 */ |
| 176 | 0x00000000, /* 1311 - 1280 */ |
| 177 | 0x00000000, /* 1343 - 1312 */ |
| 178 | 0x00000000, /* 1375 - 1344 */ |
| 179 | 0x00000000, /* 1407 - 1376 */ |
| 180 | 0x00000000, /* 1439 - 1408 */ |
| 181 | 0x00000000, /* 1471 - 1440 */ |
| 182 | 0x00000000, /* 1503 - 1472 */ |
| 183 | }; |
| 184 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 185 | base = le32_to_cpu(il->card_alive.log_event_table_ptr); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 186 | if (!il3945_hw_valid_rtc_data_addr(base)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 187 | IL_ERR("Invalid event log pointer 0x%08X\n", base); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 188 | return; |
| 189 | } |
| 190 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 191 | disable_ptr = il_read_targ_mem(il, base + (4 * sizeof(u32))); |
| 192 | array_size = il_read_targ_mem(il, base + (5 * sizeof(u32))); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 193 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 194 | if (IL_EVT_DISABLE && array_size == IL_EVT_DISABLE_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 195 | D_INFO("Disabling selected uCode log events at 0x%x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 196 | disable_ptr); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 197 | for (i = 0; i < IL_EVT_DISABLE_SIZE; i++) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 198 | il_write_targ_mem(il, |
Tomas Winkler | af7cca2 | 2007-10-25 17:15:36 +0800 | [diff] [blame] | 199 | disable_ptr + (i * sizeof(u32)), |
| 200 | evt_disable[i]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 201 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 202 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 203 | D_INFO("Selected uCode log events may be disabled\n"); |
| 204 | D_INFO(" by writing \"1\"s into disable bitmap\n"); |
| 205 | D_INFO(" in SRAM at 0x%x, size %d u32s\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 206 | disable_ptr, array_size); |
| 207 | } |
| 208 | |
| 209 | } |
| 210 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 211 | static int il3945_hwrate_to_plcp_idx(u8 plcp) |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 212 | { |
| 213 | int idx; |
| 214 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 215 | for (idx = 0; idx < RATE_COUNT_3945; idx++) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 216 | if (il3945_rates[idx].plcp == plcp) |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 217 | return idx; |
| 218 | return -1; |
| 219 | } |
| 220 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 221 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 04569cb | 2010-03-31 17:57:28 -0700 | [diff] [blame] | 222 | #define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 223 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 224 | static const char *il3945_get_tx_fail_reason(u32 status) |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 225 | { |
| 226 | switch (status & TX_STATUS_MSK) { |
Wey-Yi Guy | 04569cb | 2010-03-31 17:57:28 -0700 | [diff] [blame] | 227 | case TX_3945_STATUS_SUCCESS: |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 228 | return "SUCCESS"; |
| 229 | TX_STATUS_ENTRY(SHORT_LIMIT); |
| 230 | TX_STATUS_ENTRY(LONG_LIMIT); |
| 231 | TX_STATUS_ENTRY(FIFO_UNDERRUN); |
| 232 | TX_STATUS_ENTRY(MGMNT_ABORT); |
| 233 | TX_STATUS_ENTRY(NEXT_FRAG); |
| 234 | TX_STATUS_ENTRY(LIFE_EXPIRE); |
| 235 | TX_STATUS_ENTRY(DEST_PS); |
| 236 | TX_STATUS_ENTRY(ABORTED); |
| 237 | TX_STATUS_ENTRY(BT_RETRY); |
| 238 | TX_STATUS_ENTRY(STA_INVALID); |
| 239 | TX_STATUS_ENTRY(FRAG_DROPPED); |
| 240 | TX_STATUS_ENTRY(TID_DISABLE); |
| 241 | TX_STATUS_ENTRY(FRAME_FLUSHED); |
| 242 | TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL); |
| 243 | TX_STATUS_ENTRY(TX_LOCKED); |
| 244 | TX_STATUS_ENTRY(NO_BEACON_ON_RADAR); |
| 245 | } |
| 246 | |
| 247 | return "UNKNOWN"; |
| 248 | } |
| 249 | #else |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 250 | static inline const char *il3945_get_tx_fail_reason(u32 status) |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 251 | { |
| 252 | return ""; |
| 253 | } |
| 254 | #endif |
| 255 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 256 | /* |
| 257 | * get ieee prev rate from rate scale table. |
| 258 | * for A and B mode we need to overright prev |
| 259 | * value |
| 260 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 261 | int il3945_rs_next_rate(struct il_priv *il, int rate) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 262 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 263 | int next_rate = il3945_get_prev_ieee_rate(rate); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 264 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 265 | switch (il->band) { |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 266 | case IEEE80211_BAND_5GHZ: |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 267 | if (rate == RATE_12M_IDX) |
| 268 | next_rate = RATE_9M_IDX; |
| 269 | else if (rate == RATE_6M_IDX) |
| 270 | next_rate = RATE_6M_IDX; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 271 | break; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 272 | case IEEE80211_BAND_2GHZ: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 273 | if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) && |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 274 | il_is_associated(il)) { |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 275 | if (rate == RATE_11M_IDX) |
| 276 | next_rate = RATE_5M_IDX; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 277 | } |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 278 | break; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 279 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 280 | default: |
| 281 | break; |
| 282 | } |
| 283 | |
| 284 | return next_rate; |
| 285 | } |
| 286 | |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 287 | |
| 288 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 289 | * il3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 290 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 291 | * When FW advances 'R' idx, all entries between old and new 'R' idx |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 292 | * need to be reclaimed. As result, some free space forms. If there is |
| 293 | * enough free space (> low mark), wake the stack that feeds us. |
| 294 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 295 | static void il3945_tx_queue_reclaim(struct il_priv *il, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 296 | int txq_id, int idx) |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 297 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 298 | struct il_tx_queue *txq = &il->txq[txq_id]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 299 | struct il_queue *q = &txq->q; |
| 300 | struct il_tx_info *tx_info; |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 301 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 302 | BUG_ON(txq_id == IL39_CMD_QUEUE_NUM); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 303 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 304 | for (idx = il_queue_inc_wrap(idx, q->n_bd); |
| 305 | q->read_ptr != idx; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 306 | q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) { |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 307 | |
| 308 | tx_info = &txq->txb[txq->q.read_ptr]; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 309 | ieee80211_tx_status_irqsafe(il->hw, tx_info->skb); |
Johannes Berg | ff0d91c | 2010-05-17 02:37:34 -0700 | [diff] [blame] | 310 | tx_info->skb = NULL; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 311 | il->cfg->ops->lib->txq_free_tfd(il, txq); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 312 | } |
| 313 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 314 | if (il_queue_space(q) > q->low_mark && txq_id >= 0 && |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 315 | txq_id != IL39_CMD_QUEUE_NUM && il->mac80211_registered) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 316 | il_wake_queue(il, txq); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 320 | * il3945_rx_reply_tx - Handle Tx response |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 321 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 322 | static void il3945_rx_reply_tx(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 323 | struct il_rx_buf *rxb) |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 324 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 325 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 326 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
| 327 | int txq_id = SEQ_TO_QUEUE(sequence); |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 328 | int idx = SEQ_TO_IDX(sequence); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 329 | struct il_tx_queue *txq = &il->txq[txq_id]; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 330 | struct ieee80211_tx_info *info; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 331 | struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 332 | u32 status = le32_to_cpu(tx_resp->status); |
| 333 | int rate_idx; |
Abbas, Mohamed | 74221d0 | 2008-12-02 12:14:03 -0800 | [diff] [blame] | 334 | int fail; |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 335 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 336 | if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) { |
| 337 | IL_ERR("Read idx for DMA queue txq_id (%d) idx %d " |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 338 | "is out of range [0-%d] %d %d\n", txq_id, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 339 | idx, txq->q.n_bd, txq->q.write_ptr, |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 340 | txq->q.read_ptr); |
| 341 | return; |
| 342 | } |
| 343 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 344 | txq->time_stamp = jiffies; |
Johannes Berg | ff0d91c | 2010-05-17 02:37:34 -0700 | [diff] [blame] | 345 | info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 346 | ieee80211_tx_info_clear_status(info); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 347 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 348 | /* Fill the MRR chain with some info about on-chip retransmissions */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 349 | rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 350 | if (info->band == IEEE80211_BAND_5GHZ) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 351 | rate_idx -= IL_FIRST_OFDM_RATE; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 352 | |
| 353 | fail = tx_resp->failure_frame; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 354 | |
Abbas, Mohamed | 74221d0 | 2008-12-02 12:14:03 -0800 | [diff] [blame] | 355 | info->status.rates[0].idx = rate_idx; |
| 356 | info->status.rates[0].count = fail + 1; /* add final attempt */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 357 | |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 358 | /* tx_status->rts_retry_count = tx_resp->failure_rts; */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 359 | info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ? |
| 360 | IEEE80211_TX_STAT_ACK : 0; |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 361 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 362 | D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 363 | txq_id, il3945_get_tx_fail_reason(status), status, |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 364 | tx_resp->rate, tx_resp->failure_frame); |
| 365 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 366 | D_TX_REPLY("Tx queue reclaim %d\n", idx); |
| 367 | il3945_tx_queue_reclaim(il, txq_id, idx); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 368 | |
Johannes Berg | a313f38 | 2010-09-22 18:02:12 +0200 | [diff] [blame] | 369 | if (status & TX_ABORT_REQUIRED_MSK) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 370 | IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n"); |
Tomas Winkler | 91c066f | 2008-03-06 17:36:55 -0800 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | |
| 374 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 375 | /***************************************************************************** |
| 376 | * |
| 377 | * Intel PRO/Wireless 3945ABG/BG Network Connection |
| 378 | * |
| 379 | * RX handler implementations |
| 380 | * |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 381 | *****************************************************************************/ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 382 | #ifdef CONFIG_IWLEGACY_DEBUGFS |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 383 | static void il3945_accumulative_stats(struct il_priv *il, |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 384 | __le32 *stats) |
| 385 | { |
| 386 | int i; |
| 387 | __le32 *prev_stats; |
| 388 | u32 *accum_stats; |
| 389 | u32 *delta, *max_delta; |
| 390 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 391 | prev_stats = (__le32 *)&il->_3945.stats; |
| 392 | accum_stats = (u32 *)&il->_3945.accum_stats; |
| 393 | delta = (u32 *)&il->_3945.delta_stats; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 394 | max_delta = (u32 *)&il->_3945.max_delta; |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 395 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 396 | for (i = sizeof(__le32); i < sizeof(struct il3945_notif_stats); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 397 | i += sizeof(__le32), stats++, prev_stats++, delta++, |
| 398 | max_delta++, accum_stats++) { |
| 399 | if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) { |
| 400 | *delta = (le32_to_cpu(*stats) - |
| 401 | le32_to_cpu(*prev_stats)); |
| 402 | *accum_stats += *delta; |
| 403 | if (*delta > *max_delta) |
| 404 | *max_delta = *delta; |
| 405 | } |
| 406 | } |
| 407 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 408 | /* reset accumulative stats for "no-counter" type stats */ |
| 409 | il->_3945.accum_stats.general.temperature = |
| 410 | il->_3945.stats.general.temperature; |
| 411 | il->_3945.accum_stats.general.ttl_timestamp = |
| 412 | il->_3945.stats.general.ttl_timestamp; |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 413 | } |
| 414 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 415 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 416 | void il3945_hw_rx_stats(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 417 | struct il_rx_buf *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 418 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 419 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 420 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 421 | D_RX("Statistics notification received (%d vs %d).\n", |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 422 | (int)sizeof(struct il3945_notif_stats), |
Daniel C Halperin | 396887a | 2009-08-13 13:31:01 -0700 | [diff] [blame] | 423 | le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 424 | #ifdef CONFIG_IWLEGACY_DEBUGFS |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 425 | il3945_accumulative_stats(il, (__le32 *)&pkt->u.raw); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 426 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 427 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 428 | memcpy(&il->_3945.stats, pkt->u.raw, sizeof(il->_3945.stats)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 429 | } |
| 430 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 431 | void il3945_reply_stats(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 432 | struct il_rx_buf *rxb) |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 433 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 434 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 435 | __le32 *flag = (__le32 *)&pkt->u.raw; |
| 436 | |
| 437 | if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) { |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 438 | #ifdef CONFIG_IWLEGACY_DEBUGFS |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 439 | memset(&il->_3945.accum_stats, 0, |
| 440 | sizeof(struct il3945_notif_stats)); |
| 441 | memset(&il->_3945.delta_stats, 0, |
| 442 | sizeof(struct il3945_notif_stats)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 443 | memset(&il->_3945.max_delta, 0, |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 444 | sizeof(struct il3945_notif_stats)); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 445 | #endif |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 446 | D_RX("Statistics have been cleared\n"); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 447 | } |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 448 | il3945_hw_rx_stats(il, rxb); |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 452 | /****************************************************************************** |
| 453 | * |
| 454 | * Misc. internal state and helper functions |
| 455 | * |
| 456 | ******************************************************************************/ |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 457 | |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 458 | /* This is necessary only for a number of stats, see the caller. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 459 | static int il3945_is_network_packet(struct il_priv *il, |
Adel Gadllah | 4bd9b4f | 2008-07-11 11:53:29 +0800 | [diff] [blame] | 460 | struct ieee80211_hdr *header) |
| 461 | { |
| 462 | /* Filter incoming packets to determine if they are targeted toward |
| 463 | * this network, discarding packets coming from ourselves */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 464 | switch (il->iw_mode) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 465 | case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */ |
Adel Gadllah | 4bd9b4f | 2008-07-11 11:53:29 +0800 | [diff] [blame] | 466 | /* packets to our IBSS update information */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 467 | return !compare_ether_addr(header->addr3, il->bssid); |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 468 | case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */ |
Adel Gadllah | 4bd9b4f | 2008-07-11 11:53:29 +0800 | [diff] [blame] | 469 | /* packets to our IBSS update information */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 470 | return !compare_ether_addr(header->addr2, il->bssid); |
Adel Gadllah | 4bd9b4f | 2008-07-11 11:53:29 +0800 | [diff] [blame] | 471 | default: |
| 472 | return 1; |
| 473 | } |
| 474 | } |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 475 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 476 | static void il3945_pass_packet_to_mac80211(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 477 | struct il_rx_buf *rxb, |
Zhu Yi | 12342c4 | 2007-12-20 11:27:32 +0800 | [diff] [blame] | 478 | struct ieee80211_rx_status *stats) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 479 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 480 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 481 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IL_RX_DATA(pkt); |
| 482 | struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt); |
| 483 | struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt); |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 484 | u16 len = le16_to_cpu(rx_hdr->len); |
| 485 | struct sk_buff *skb; |
Zhu Yi | 29b1b26 | 2009-10-23 13:42:25 -0700 | [diff] [blame] | 486 | __le16 fc = hdr->frame_control; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 487 | |
| 488 | /* We received data from the HW, so stop the watchdog */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 489 | if (unlikely(len + IL39_RX_FRAME_SIZE > |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 490 | PAGE_SIZE << il->hw_params.rx_page_order)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 491 | D_DROP("Corruption detected!\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 492 | return; |
| 493 | } |
| 494 | |
| 495 | /* We only process data packets if the interface is open */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 496 | if (unlikely(!il->is_open)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 497 | D_DROP( |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 498 | "Dropping packet while interface is not open.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 499 | return; |
| 500 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 501 | |
Zhu Yi | ecdf94b | 2010-03-29 16:42:26 +0800 | [diff] [blame] | 502 | skb = dev_alloc_skb(128); |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 503 | if (!skb) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 504 | IL_ERR("dev_alloc_skb failed\n"); |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 505 | return; |
| 506 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 507 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 508 | if (!il3945_mod_params.sw_crypto) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 509 | il_set_decrypted_flag(il, |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 510 | (struct ieee80211_hdr *)rxb_addr(rxb), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 511 | le32_to_cpu(rx_end->status), stats); |
| 512 | |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 513 | skb_add_rx_frag(skb, 0, rxb->page, |
| 514 | (void *)rx_hdr->payload - (void *)pkt, len); |
| 515 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 516 | il_update_stats(il, false, fc, len); |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 517 | memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 518 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 519 | ieee80211_rx(il->hw, skb); |
| 520 | il->alloc_rxb_page--; |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 521 | rxb->page = NULL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 522 | } |
| 523 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 524 | #define IL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
Mohamed Abbas | 7878a5a | 2007-11-29 11:10:13 +0800 | [diff] [blame] | 525 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 526 | static void il3945_rx_reply_rx(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 527 | struct il_rx_buf *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 528 | { |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 529 | struct ieee80211_hdr *header; |
| 530 | struct ieee80211_rx_status rx_status; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 531 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 532 | struct il3945_rx_frame_stats *rx_stats = IL_RX_STATS(pkt); |
| 533 | struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt); |
| 534 | struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt); |
Reinette Chatre | f875f51 | 2010-04-05 10:43:10 -0700 | [diff] [blame] | 535 | u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg); |
| 536 | u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 537 | u8 network_packet; |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 538 | |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 539 | rx_status.flag = 0; |
| 540 | rx_status.mactime = le64_to_cpu(rx_end->timestamp); |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 541 | rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? |
| 542 | IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; |
Bruno Randolf | 59eb21a | 2011-01-17 13:37:28 +0900 | [diff] [blame] | 543 | rx_status.freq = |
| 544 | ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel), |
| 545 | rx_status.band); |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 546 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 547 | rx_status.rate_idx = il3945_hwrate_to_plcp_idx(rx_hdr->rate); |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 548 | if (rx_status.band == IEEE80211_BAND_5GHZ) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 549 | rx_status.rate_idx -= IL_FIRST_OFDM_RATE; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 550 | |
Reinette Chatre | 9024adf | 2009-10-02 13:43:57 -0700 | [diff] [blame] | 551 | rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) & |
Bruno Randolf | 6f0a2c4 | 2008-07-30 17:20:14 +0200 | [diff] [blame] | 552 | RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; |
| 553 | |
| 554 | /* set the preamble flag if appropriate */ |
| 555 | if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) |
| 556 | rx_status.flag |= RX_FLAG_SHORTPRE; |
| 557 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 558 | if ((unlikely(rx_stats->phy_count > 20))) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 559 | D_DROP("dsp size out of range [0,20]: %d/n", |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 560 | rx_stats->phy_count); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 561 | return; |
| 562 | } |
| 563 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 564 | if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) || |
| 565 | !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 566 | D_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 567 | return; |
| 568 | } |
| 569 | |
Maxim Levitsky | 56decd3 | 2008-08-01 12:54:27 +0300 | [diff] [blame] | 570 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 571 | |
| 572 | /* Convert 3945's rssi indicator to dBm */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 573 | rx_status.signal = rx_stats->rssi - IL39_RSSI_OFFSET; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 574 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 575 | D_STATS("Rssi %d sig_avg %d noise_diff %d\n", |
Johannes Berg | ed1b6e9 | 2010-03-18 09:58:27 -0700 | [diff] [blame] | 576 | rx_status.signal, rx_stats_sig_avg, |
| 577 | rx_stats_noise_diff); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 578 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 579 | header = (struct ieee80211_hdr *)IL_RX_DATA(pkt); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 580 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 581 | network_packet = il3945_is_network_packet(il, header); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 582 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 583 | D_STATS("[%c] %d RSSI:%d Signal:%u, Rate:%u\n", |
Tomas Winkler | 17744ff | 2008-03-02 01:52:00 +0200 | [diff] [blame] | 584 | network_packet ? '*' : ' ', |
| 585 | le16_to_cpu(rx_hdr->channel), |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 586 | rx_status.signal, rx_status.signal, |
Johannes Berg | ed1b6e9 | 2010-03-18 09:58:27 -0700 | [diff] [blame] | 587 | rx_status.rate_idx); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 588 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 589 | il_dbg_log_rx_data_frame(il, le16_to_cpu(rx_hdr->len), |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 590 | header); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 591 | |
| 592 | if (network_packet) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 593 | il->_3945.last_beacon_time = |
Johannes Berg | e99f168 | 2010-01-19 10:04:28 -0800 | [diff] [blame] | 594 | le32_to_cpu(rx_end->beacon_timestamp); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 595 | il->_3945.last_tsf = le64_to_cpu(rx_end->timestamp); |
| 596 | il->_3945.last_rx_rssi = rx_status.signal; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 597 | } |
| 598 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 599 | il3945_pass_packet_to_mac80211(il, rxb, &rx_status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 600 | } |
| 601 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 602 | int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 603 | struct il_tx_queue *txq, |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 604 | dma_addr_t addr, u16 len, u8 reset, u8 pad) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 605 | { |
| 606 | int count; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 607 | struct il_queue *q; |
| 608 | struct il3945_tfd *tfd, *tfd_tmp; |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 609 | |
| 610 | q = &txq->q; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 611 | tfd_tmp = (struct il3945_tfd *)txq->tfds; |
Samuel Ortiz | 59606ff | 2009-01-23 13:45:13 -0800 | [diff] [blame] | 612 | tfd = &tfd_tmp[q->write_ptr]; |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 613 | |
| 614 | if (reset) |
| 615 | memset(tfd, 0, sizeof(*tfd)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 616 | |
| 617 | count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 618 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 619 | if (count >= NUM_TFD_CHUNKS || count < 0) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 620 | IL_ERR("Error can not send more than %d chunks\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 621 | NUM_TFD_CHUNKS); |
| 622 | return -EINVAL; |
| 623 | } |
| 624 | |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 625 | tfd->tbs[count].addr = cpu_to_le32(addr); |
| 626 | tfd->tbs[count].len = cpu_to_le32(len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 627 | |
| 628 | count++; |
| 629 | |
| 630 | tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) | |
| 631 | TFD_CTL_PAD_SET(pad)); |
| 632 | |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | /** |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 637 | * il3945_hw_txq_free_tfd - Free one TFD, those at idx [txq->q.read_ptr] |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 638 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 639 | * Does NOT advance any idxes |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 640 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 641 | void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 642 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 643 | struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 644 | int idx = txq->q.read_ptr; |
| 645 | struct il3945_tfd *tfd = &tfd_tmp[idx]; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 646 | struct pci_dev *dev = il->pci_dev; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 647 | int i; |
| 648 | int counter; |
| 649 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 650 | /* sanity check */ |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 651 | counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 652 | if (counter > NUM_TFD_CHUNKS) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 653 | IL_ERR("Too many chunks: %i\n", counter); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 654 | /* @todo issue fatal error, it is quite serious situation */ |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 655 | return; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 656 | } |
| 657 | |
Reinette Chatre | fd9377e | 2009-03-11 11:17:58 -0700 | [diff] [blame] | 658 | /* Unmap tx_cmd */ |
| 659 | if (counter) |
| 660 | pci_unmap_single(dev, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 661 | dma_unmap_addr(&txq->meta[idx], mapping), |
| 662 | dma_unmap_len(&txq->meta[idx], len), |
Reinette Chatre | fd9377e | 2009-03-11 11:17:58 -0700 | [diff] [blame] | 663 | PCI_DMA_TODEVICE); |
| 664 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 665 | /* unmap chunks if any */ |
| 666 | |
Johannes Berg | ff0d91c | 2010-05-17 02:37:34 -0700 | [diff] [blame] | 667 | for (i = 1; i < counter; i++) |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 668 | pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr), |
| 669 | le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE); |
Johannes Berg | 4f5fa23 | 2010-05-17 02:37:31 -0700 | [diff] [blame] | 670 | |
Johannes Berg | ff0d91c | 2010-05-17 02:37:34 -0700 | [diff] [blame] | 671 | /* free SKB */ |
| 672 | if (txq->txb) { |
| 673 | struct sk_buff *skb; |
Johannes Berg | 4f5fa23 | 2010-05-17 02:37:31 -0700 | [diff] [blame] | 674 | |
Johannes Berg | ff0d91c | 2010-05-17 02:37:34 -0700 | [diff] [blame] | 675 | skb = txq->txb[txq->q.read_ptr].skb; |
| 676 | |
| 677 | /* can be called from irqs-disabled context */ |
| 678 | if (skb) { |
| 679 | dev_kfree_skb_any(skb); |
| 680 | txq->txb[txq->q.read_ptr].skb = NULL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 681 | } |
| 682 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 683 | } |
| 684 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 685 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 686 | * il3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 687 | * |
| 688 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 689 | void il3945_hw_build_tx_cmd_rate(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 690 | struct il_device_cmd *cmd, |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 691 | struct ieee80211_tx_info *info, |
| 692 | struct ieee80211_hdr *hdr, |
| 693 | int sta_id, int tx_id) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 694 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 695 | u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 696 | u16 rate_idx = min(hw_value & 0xffff, RATE_COUNT_3945); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 697 | u16 rate_mask; |
| 698 | int rate; |
| 699 | u8 rts_retry_limit; |
| 700 | u8 data_retry_limit; |
| 701 | __le32 tx_flags; |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 702 | __le16 fc = hdr->frame_control; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 703 | struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 704 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 705 | rate = il3945_rates[rate_idx].plcp; |
Abhijeet Kolekar | 9744c91 | 2009-10-09 13:20:31 -0700 | [diff] [blame] | 706 | tx_flags = tx_cmd->tx_flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 707 | |
| 708 | /* We need to figure out how to get the sta->supp_rates while |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 709 | * in this running context */ |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 710 | rate_mask = RATES_MASK_3945; |
Abhijeet Kolekar | 768db98 | 2009-10-09 13:20:33 -0700 | [diff] [blame] | 711 | |
| 712 | /* Set retry limit on DATA packets and Probe Responses*/ |
| 713 | if (ieee80211_is_probe_resp(fc)) |
| 714 | data_retry_limit = 3; |
| 715 | else |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 716 | data_retry_limit = IL_DEFAULT_TX_RETRY; |
Abhijeet Kolekar | 768db98 | 2009-10-09 13:20:33 -0700 | [diff] [blame] | 717 | tx_cmd->data_retry_limit = data_retry_limit; |
| 718 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 719 | if (tx_id >= IL39_CMD_QUEUE_NUM) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 720 | rts_retry_limit = 3; |
| 721 | else |
| 722 | rts_retry_limit = 7; |
| 723 | |
Abhijeet Kolekar | 768db98 | 2009-10-09 13:20:33 -0700 | [diff] [blame] | 724 | if (data_retry_limit < rts_retry_limit) |
| 725 | rts_retry_limit = data_retry_limit; |
| 726 | tx_cmd->rts_retry_limit = rts_retry_limit; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 727 | |
Abhijeet Kolekar | 9744c91 | 2009-10-09 13:20:31 -0700 | [diff] [blame] | 728 | tx_cmd->rate = rate; |
| 729 | tx_cmd->tx_flags = tx_flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 730 | |
| 731 | /* OFDM */ |
Abhijeet Kolekar | 9744c91 | 2009-10-09 13:20:31 -0700 | [diff] [blame] | 732 | tx_cmd->supp_rates[0] = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 733 | ((rate_mask & IL_OFDM_RATES_MASK) >> IL_FIRST_OFDM_RATE) & 0xFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 734 | |
| 735 | /* CCK */ |
Abhijeet Kolekar | 9744c91 | 2009-10-09 13:20:31 -0700 | [diff] [blame] | 736 | tx_cmd->supp_rates[1] = (rate_mask & 0xF); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 737 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 738 | D_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 739 | "cck/ofdm mask: 0x%x/0x%x\n", sta_id, |
Abhijeet Kolekar | 9744c91 | 2009-10-09 13:20:31 -0700 | [diff] [blame] | 740 | tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags), |
| 741 | tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 742 | } |
| 743 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 744 | static u8 il3945_sync_sta(struct il_priv *il, int sta_id, u16 tx_rate) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 745 | { |
| 746 | unsigned long flags_spin; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 747 | struct il_station_entry *station; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 748 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 749 | if (sta_id == IL_INVALID_STATION) |
| 750 | return IL_INVALID_STATION; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 751 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 752 | spin_lock_irqsave(&il->sta_lock, flags_spin); |
| 753 | station = &il->stations[sta_id]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 754 | |
| 755 | station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK; |
| 756 | station->sta.rate_n_flags = cpu_to_le16(tx_rate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 757 | station->sta.mode = STA_CONTROL_MODIFY_MSK; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 758 | il_send_add_sta(il, &station->sta, CMD_ASYNC); |
| 759 | spin_unlock_irqrestore(&il->sta_lock, flags_spin); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 760 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 761 | D_RATE("SCALE sync station %d to rate %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 762 | sta_id, tx_rate); |
| 763 | return sta_id; |
| 764 | } |
| 765 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 766 | static void il3945_set_pwr_vmain(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 767 | { |
Johannes Berg | 9597eba | 2010-09-22 18:02:09 +0200 | [diff] [blame] | 768 | /* |
| 769 | * (for documentation purposes) |
| 770 | * to set power to V_AUX, do |
| 771 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 772 | if (pci_pme_capable(il->pci_dev, PCI_D3cold)) { |
| 773 | il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 774 | APMG_PS_CTRL_VAL_PWR_SRC_VAUX, |
| 775 | ~APMG_PS_CTRL_MSK_PWR_SRC); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 776 | |
Stanislaw Gruszka | 142b343 | 2011-08-24 15:22:57 +0200 | [diff] [blame] | 777 | _il_poll_bit(il, CSR_GPIO_IN, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 778 | CSR_GPIO_IN_VAL_VAUX_PWR_SRC, |
| 779 | CSR_GPIO_IN_BIT_AUX_POWER, 5000); |
Tomas Winkler | 3fdb68d | 2009-02-10 15:19:02 -0800 | [diff] [blame] | 780 | } |
Johannes Berg | 9597eba | 2010-09-22 18:02:09 +0200 | [diff] [blame] | 781 | */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 782 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 783 | il_set_bits_mask_prph(il, APMG_PS_CTRL_REG, |
Johannes Berg | 9597eba | 2010-09-22 18:02:09 +0200 | [diff] [blame] | 784 | APMG_PS_CTRL_VAL_PWR_SRC_VMAIN, |
| 785 | ~APMG_PS_CTRL_MSK_PWR_SRC); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 786 | |
Stanislaw Gruszka | 142b343 | 2011-08-24 15:22:57 +0200 | [diff] [blame] | 787 | _il_poll_bit(il, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC, |
Johannes Berg | 9597eba | 2010-09-22 18:02:09 +0200 | [diff] [blame] | 788 | CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 789 | } |
| 790 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 791 | static int il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 792 | { |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 793 | il_wr(il, FH39_RCSR_RBD_BASE(0), rxq->bd_dma); |
| 794 | il_wr(il, FH39_RCSR_RPTR_ADDR(0), |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 795 | rxq->rb_stts_dma); |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 796 | il_wr(il, FH39_RCSR_WPTR(0), 0); |
| 797 | il_wr(il, FH39_RCSR_CONFIG(0), |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 798 | FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE | |
| 799 | FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE | |
| 800 | FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN | |
| 801 | FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | |
| 802 | (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) | |
| 803 | FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | |
| 804 | (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) | |
| 805 | FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 806 | |
| 807 | /* fake read to flush all prev I/O */ |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 808 | il_rd(il, FH39_RSSR_CTRL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 809 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 810 | return 0; |
| 811 | } |
| 812 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 813 | static int il3945_tx_reset(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 814 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 815 | |
| 816 | /* bypass mode */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 817 | il_wr_prph(il, ALM_SCD_MODE_REG, 0x2); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 818 | |
| 819 | /* RA 0 is active */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 820 | il_wr_prph(il, ALM_SCD_ARASTAT_REG, 0x01); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 821 | |
| 822 | /* all 6 fifo are active */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 823 | il_wr_prph(il, ALM_SCD_TXFACT_REG, 0x3f); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 824 | |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 825 | il_wr_prph(il, ALM_SCD_SBYP_MODE_1_REG, 0x010000); |
| 826 | il_wr_prph(il, ALM_SCD_SBYP_MODE_2_REG, 0x030002); |
| 827 | il_wr_prph(il, ALM_SCD_TXF4MF_REG, 0x000004); |
| 828 | il_wr_prph(il, ALM_SCD_TXF5MF_REG, 0x000005); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 829 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 830 | il_wr(il, FH39_TSSR_CBB_BASE, |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 831 | il->_3945.shared_phys); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 832 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 833 | il_wr(il, FH39_TSSR_MSG_CONFIG, |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 834 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON | |
| 835 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON | |
| 836 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B | |
| 837 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON | |
| 838 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON | |
| 839 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH | |
| 840 | FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 841 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 842 | |
| 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 847 | * il3945_txq_ctx_reset - Reset TX queue context |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 848 | * |
| 849 | * Destroys all DMA structures and initialize them again |
| 850 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 851 | static int il3945_txq_ctx_reset(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 852 | { |
| 853 | int rc; |
| 854 | int txq_id, slots_num; |
| 855 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 856 | il3945_hw_txq_ctx_free(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 857 | |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 858 | /* allocate tx queue structure */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 859 | rc = il_alloc_txq_mem(il); |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 860 | if (rc) |
| 861 | return rc; |
| 862 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 863 | /* Tx CMD queue */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 864 | rc = il3945_tx_reset(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 865 | if (rc) |
| 866 | goto error; |
| 867 | |
| 868 | /* Tx queue(s) */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 869 | for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 870 | slots_num = (txq_id == IL39_CMD_QUEUE_NUM) ? |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 871 | TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 872 | rc = il_tx_queue_init(il, &il->txq[txq_id], |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 873 | slots_num, txq_id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 874 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 875 | IL_ERR("Tx %d queue init failed\n", txq_id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 876 | goto error; |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | return rc; |
| 881 | |
| 882 | error: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 883 | il3945_hw_txq_ctx_free(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 884 | return rc; |
| 885 | } |
| 886 | |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 887 | |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 888 | /* |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 889 | * Start up 3945's basic functionality after it has been reset |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 890 | * (e.g. after platform boot, or shutdown via il_apm_stop()) |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 891 | * NOTE: This does not load uCode nor start the embedded processor |
| 892 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 893 | static int il3945_apm_init(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 894 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 895 | int ret = il_apm_init(il); |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 896 | |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 897 | /* Clear APMG (NIC's internal power management) interrupts */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 898 | il_wr_prph(il, APMG_RTC_INT_MSK_REG, 0x0); |
| 899 | il_wr_prph(il, APMG_RTC_INT_STT_REG, 0xFFFFFFFF); |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 900 | |
| 901 | /* Reset radio chip */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 902 | il_set_bits_prph(il, APMG_PS_CTRL_REG, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 903 | APMG_PS_CTRL_VAL_RESET_REQ); |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 904 | udelay(5); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 905 | il_clear_bits_prph(il, APMG_PS_CTRL_REG, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 906 | APMG_PS_CTRL_VAL_RESET_REQ); |
Ben Cahill | f33269b | 2009-10-09 13:20:19 -0700 | [diff] [blame] | 907 | |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 908 | return ret; |
| 909 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 910 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 911 | static void il3945_nic_config(struct il_priv *il) |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 912 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 913 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 914 | unsigned long flags; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 915 | u8 rev_id = il->pci_dev->revision; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 916 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 917 | spin_lock_irqsave(&il->lock, flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 918 | |
Abhijeet Kolekar | 4312143 | 2009-05-08 13:44:41 -0700 | [diff] [blame] | 919 | /* Determine HW type */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 920 | D_INFO("HW Revision ID = 0x%X\n", rev_id); |
Abhijeet Kolekar | 4312143 | 2009-05-08 13:44:41 -0700 | [diff] [blame] | 921 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 922 | if (rev_id & PCI_CFG_REV_ID_BIT_RTP) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 923 | D_INFO("RTP type\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 924 | else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 925 | D_INFO("3945 RADIO-MB type\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 926 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 927 | CSR39_HW_IF_CONFIG_REG_BIT_3945_MB); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 928 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 929 | D_INFO("3945 RADIO-MM type\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 930 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 931 | CSR39_HW_IF_CONFIG_REG_BIT_3945_MM); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 932 | } |
| 933 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 934 | if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 935 | D_INFO("SKU OP mode is mrc\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 936 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 937 | CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 938 | } else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 939 | D_INFO("SKU OP mode is basic\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 940 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 941 | if ((eeprom->board_revision & 0xF0) == 0xD0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 942 | D_INFO("3945ABG revision is 0x%X\n", |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 943 | eeprom->board_revision); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 944 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 945 | CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 946 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 947 | D_INFO("3945ABG revision is 0x%X\n", |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 948 | eeprom->board_revision); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 949 | il_clear_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 950 | CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 951 | } |
| 952 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 953 | if (eeprom->almgor_m_version <= 1) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 954 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 955 | CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 956 | D_INFO("Card M type A version is 0x%X\n", |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 957 | eeprom->almgor_m_version); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 958 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 959 | D_INFO("Card M type B version is 0x%X\n", |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 960 | eeprom->almgor_m_version); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 961 | il_set_bit(il, CSR_HW_IF_CONFIG_REG, |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 962 | CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 963 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 964 | spin_unlock_irqrestore(&il->lock, flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 965 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 966 | if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 967 | D_RF_KILL("SW RF KILL supported in EEPROM.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 968 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 969 | if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 970 | D_RF_KILL("HW RF KILL supported in EEPROM.\n"); |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 971 | } |
| 972 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 973 | int il3945_hw_nic_init(struct il_priv *il) |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 974 | { |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 975 | int rc; |
| 976 | unsigned long flags; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 977 | struct il_rx_queue *rxq = &il->rxq; |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 978 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 979 | spin_lock_irqsave(&il->lock, flags); |
| 980 | il->cfg->ops->lib->apm_ops.init(il); |
| 981 | spin_unlock_irqrestore(&il->lock, flags); |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 982 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 983 | il3945_set_pwr_vmain(il); |
Kolekar, Abhijeet | 854682e | 2008-12-19 10:37:39 +0800 | [diff] [blame] | 984 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 985 | il->cfg->ops->lib->apm_ops.config(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 986 | |
| 987 | /* Allocate the RX queue, or reset if it is already allocated */ |
| 988 | if (!rxq->bd) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 989 | rc = il_rx_queue_alloc(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 990 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 991 | IL_ERR("Unable to initialize Rx queue\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 992 | return -ENOMEM; |
| 993 | } |
| 994 | } else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 995 | il3945_rx_queue_reset(il, rxq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 996 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 997 | il3945_rx_replenish(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 998 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 999 | il3945_rx_init(il, rxq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1000 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1001 | |
| 1002 | /* Look at using this instead: |
| 1003 | rxq->need_update = 1; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1004 | il_rx_queue_update_write_ptr(il, rxq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1005 | */ |
| 1006 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 1007 | il_wr(il, FH39_RCSR_WPTR(0), rxq->write & ~7); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1008 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1009 | rc = il3945_txq_ctx_reset(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1010 | if (rc) |
| 1011 | return rc; |
| 1012 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1013 | set_bit(STATUS_INIT, &il->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1014 | |
| 1015 | return 0; |
| 1016 | } |
| 1017 | |
| 1018 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1019 | * il3945_hw_txq_ctx_free - Free TXQ Context |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1020 | * |
| 1021 | * Destroy all TX DMA queues and structures |
| 1022 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1023 | void il3945_hw_txq_ctx_free(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1024 | { |
| 1025 | int txq_id; |
| 1026 | |
| 1027 | /* Tx queues */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1028 | if (il->txq) |
| 1029 | for (txq_id = 0; txq_id < il->hw_params.max_txq_num; |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 1030 | txq_id++) |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1031 | if (txq_id == IL39_CMD_QUEUE_NUM) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1032 | il_cmd_queue_free(il); |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 1033 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1034 | il_tx_queue_free(il, txq_id); |
Abhijeet Kolekar | 3e5d238 | 2009-03-17 21:51:49 -0700 | [diff] [blame] | 1035 | |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 1036 | /* free tx queue structure */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1037 | il_txq_mem(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1038 | } |
| 1039 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1040 | void il3945_hw_txq_ctx_stop(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1041 | { |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 1042 | int txq_id; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1043 | |
| 1044 | /* stop SCD */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 1045 | il_wr_prph(il, ALM_SCD_MODE_REG, 0); |
| 1046 | il_wr_prph(il, ALM_SCD_TXFACT_REG, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1047 | |
| 1048 | /* reset TFD queues */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1049 | for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) { |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 1050 | il_wr(il, FH39_TCSR_CONFIG(txq_id), 0x0); |
| 1051 | il_poll_bit(il, FH39_TSSR_TX_STATUS, |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 1052 | FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1053 | 1000); |
| 1054 | } |
| 1055 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1056 | il3945_hw_txq_ctx_free(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1057 | } |
| 1058 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1059 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1060 | * il3945_hw_reg_adjust_power_by_temp |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1061 | * return idx delta into power gain settings table |
Ian Schram | bbc5807 | 2007-10-25 17:15:28 +0800 | [diff] [blame] | 1062 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1063 | static int il3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1064 | { |
| 1065 | return (new_reading - old_reading) * (-11) / 100; |
| 1066 | } |
| 1067 | |
| 1068 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1069 | * il3945_hw_reg_temp_out_of_range - Keep temperature in sane range |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1070 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1071 | static inline int il3945_hw_reg_temp_out_of_range(int temperature) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1072 | { |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 1073 | return (temperature < -260 || temperature > 25) ? 1 : 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1074 | } |
| 1075 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1076 | int il3945_hw_get_temperature(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1077 | { |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1078 | return _il_rd(il, CSR_UCODE_DRV_GP2); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1079 | } |
| 1080 | |
| 1081 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1082 | * il3945_hw_reg_txpower_get_temperature |
Ian Schram | bbc5807 | 2007-10-25 17:15:28 +0800 | [diff] [blame] | 1083 | * get the current temperature by reading from NIC |
| 1084 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1085 | static int il3945_hw_reg_txpower_get_temperature(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1086 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1087 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1088 | int temperature; |
| 1089 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1090 | temperature = il3945_hw_get_temperature(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1091 | |
| 1092 | /* driver's okay range is -260 to +25. |
| 1093 | * human readable okay range is 0 to +285 */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1094 | D_INFO("Temperature: %d\n", temperature + IL_TEMP_CONVERT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1095 | |
| 1096 | /* handle insane temp reading */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1097 | if (il3945_hw_reg_temp_out_of_range(temperature)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1098 | IL_ERR("Error bad temperature value %d\n", temperature); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1099 | |
| 1100 | /* if really really hot(?), |
| 1101 | * substitute the 3rd band/group's temp measured at factory */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1102 | if (il->last_temperature > 100) |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 1103 | temperature = eeprom->groups[2].temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1104 | else /* else use most recent "sane" value from driver */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1105 | temperature = il->last_temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1106 | } |
| 1107 | |
| 1108 | return temperature; /* raw, not "human readable" */ |
| 1109 | } |
| 1110 | |
| 1111 | /* Adjust Txpower only if temperature variance is greater than threshold. |
| 1112 | * |
| 1113 | * Both are lower than older versions' 9 degrees */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1114 | #define IL_TEMPERATURE_LIMIT_TIMER 6 |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1115 | |
| 1116 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1117 | * il3945_is_temp_calib_needed - determines if new calibration is needed |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1118 | * |
| 1119 | * records new temperature in tx_mgr->temperature. |
| 1120 | * replaces tx_mgr->last_temperature *only* if calib needed |
| 1121 | * (assumes caller will actually do the calibration!). */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1122 | static int il3945_is_temp_calib_needed(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1123 | { |
| 1124 | int temp_diff; |
| 1125 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1126 | il->temperature = il3945_hw_reg_txpower_get_temperature(il); |
| 1127 | temp_diff = il->temperature - il->last_temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1128 | |
| 1129 | /* get absolute value */ |
| 1130 | if (temp_diff < 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1131 | D_POWER("Getting cooler, delta %d,\n", temp_diff); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1132 | temp_diff = -temp_diff; |
| 1133 | } else if (temp_diff == 0) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1134 | D_POWER("Same temp,\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1135 | else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1136 | D_POWER("Getting warmer, delta %d,\n", temp_diff); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1137 | |
| 1138 | /* if we don't need calibration, *don't* update last_temperature */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1139 | if (temp_diff < IL_TEMPERATURE_LIMIT_TIMER) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1140 | D_POWER("Timed thermal calib not needed\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1141 | return 0; |
| 1142 | } |
| 1143 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1144 | D_POWER("Timed thermal calib needed\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1145 | |
| 1146 | /* assume that caller will actually do calib ... |
| 1147 | * update the "last temperature" value */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1148 | il->last_temperature = il->temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1149 | return 1; |
| 1150 | } |
| 1151 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1152 | #define IL_MAX_GAIN_ENTRIES 78 |
| 1153 | #define IL_CCK_FROM_OFDM_POWER_DIFF -5 |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 1154 | #define IL_CCK_FROM_OFDM_IDX_DIFF (10) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1155 | |
| 1156 | /* radio and DSP power table, each step is 1/2 dB. |
| 1157 | * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1158 | static struct il3945_tx_power power_gain_table[2][IL_MAX_GAIN_ENTRIES] = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1159 | { |
| 1160 | {251, 127}, /* 2.4 GHz, highest power */ |
| 1161 | {251, 127}, |
| 1162 | {251, 127}, |
| 1163 | {251, 127}, |
| 1164 | {251, 125}, |
| 1165 | {251, 110}, |
| 1166 | {251, 105}, |
| 1167 | {251, 98}, |
| 1168 | {187, 125}, |
| 1169 | {187, 115}, |
| 1170 | {187, 108}, |
| 1171 | {187, 99}, |
| 1172 | {243, 119}, |
| 1173 | {243, 111}, |
| 1174 | {243, 105}, |
| 1175 | {243, 97}, |
| 1176 | {243, 92}, |
| 1177 | {211, 106}, |
| 1178 | {211, 100}, |
| 1179 | {179, 120}, |
| 1180 | {179, 113}, |
| 1181 | {179, 107}, |
| 1182 | {147, 125}, |
| 1183 | {147, 119}, |
| 1184 | {147, 112}, |
| 1185 | {147, 106}, |
| 1186 | {147, 101}, |
| 1187 | {147, 97}, |
| 1188 | {147, 91}, |
| 1189 | {115, 107}, |
| 1190 | {235, 121}, |
| 1191 | {235, 115}, |
| 1192 | {235, 109}, |
| 1193 | {203, 127}, |
| 1194 | {203, 121}, |
| 1195 | {203, 115}, |
| 1196 | {203, 108}, |
| 1197 | {203, 102}, |
| 1198 | {203, 96}, |
| 1199 | {203, 92}, |
| 1200 | {171, 110}, |
| 1201 | {171, 104}, |
| 1202 | {171, 98}, |
| 1203 | {139, 116}, |
| 1204 | {227, 125}, |
| 1205 | {227, 119}, |
| 1206 | {227, 113}, |
| 1207 | {227, 107}, |
| 1208 | {227, 101}, |
| 1209 | {227, 96}, |
| 1210 | {195, 113}, |
| 1211 | {195, 106}, |
| 1212 | {195, 102}, |
| 1213 | {195, 95}, |
| 1214 | {163, 113}, |
| 1215 | {163, 106}, |
| 1216 | {163, 102}, |
| 1217 | {163, 95}, |
| 1218 | {131, 113}, |
| 1219 | {131, 106}, |
| 1220 | {131, 102}, |
| 1221 | {131, 95}, |
| 1222 | {99, 113}, |
| 1223 | {99, 106}, |
| 1224 | {99, 102}, |
| 1225 | {99, 95}, |
| 1226 | {67, 113}, |
| 1227 | {67, 106}, |
| 1228 | {67, 102}, |
| 1229 | {67, 95}, |
| 1230 | {35, 113}, |
| 1231 | {35, 106}, |
| 1232 | {35, 102}, |
| 1233 | {35, 95}, |
| 1234 | {3, 113}, |
| 1235 | {3, 106}, |
| 1236 | {3, 102}, |
| 1237 | {3, 95} }, /* 2.4 GHz, lowest power */ |
| 1238 | { |
| 1239 | {251, 127}, /* 5.x GHz, highest power */ |
| 1240 | {251, 120}, |
| 1241 | {251, 114}, |
| 1242 | {219, 119}, |
| 1243 | {219, 101}, |
| 1244 | {187, 113}, |
| 1245 | {187, 102}, |
| 1246 | {155, 114}, |
| 1247 | {155, 103}, |
| 1248 | {123, 117}, |
| 1249 | {123, 107}, |
| 1250 | {123, 99}, |
| 1251 | {123, 92}, |
| 1252 | {91, 108}, |
| 1253 | {59, 125}, |
| 1254 | {59, 118}, |
| 1255 | {59, 109}, |
| 1256 | {59, 102}, |
| 1257 | {59, 96}, |
| 1258 | {59, 90}, |
| 1259 | {27, 104}, |
| 1260 | {27, 98}, |
| 1261 | {27, 92}, |
| 1262 | {115, 118}, |
| 1263 | {115, 111}, |
| 1264 | {115, 104}, |
| 1265 | {83, 126}, |
| 1266 | {83, 121}, |
| 1267 | {83, 113}, |
| 1268 | {83, 105}, |
| 1269 | {83, 99}, |
| 1270 | {51, 118}, |
| 1271 | {51, 111}, |
| 1272 | {51, 104}, |
| 1273 | {51, 98}, |
| 1274 | {19, 116}, |
| 1275 | {19, 109}, |
| 1276 | {19, 102}, |
| 1277 | {19, 98}, |
| 1278 | {19, 93}, |
| 1279 | {171, 113}, |
| 1280 | {171, 107}, |
| 1281 | {171, 99}, |
| 1282 | {139, 120}, |
| 1283 | {139, 113}, |
| 1284 | {139, 107}, |
| 1285 | {139, 99}, |
| 1286 | {107, 120}, |
| 1287 | {107, 113}, |
| 1288 | {107, 107}, |
| 1289 | {107, 99}, |
| 1290 | {75, 120}, |
| 1291 | {75, 113}, |
| 1292 | {75, 107}, |
| 1293 | {75, 99}, |
| 1294 | {43, 120}, |
| 1295 | {43, 113}, |
| 1296 | {43, 107}, |
| 1297 | {43, 99}, |
| 1298 | {11, 120}, |
| 1299 | {11, 113}, |
| 1300 | {11, 107}, |
| 1301 | {11, 99}, |
| 1302 | {131, 107}, |
| 1303 | {131, 99}, |
| 1304 | {99, 120}, |
| 1305 | {99, 113}, |
| 1306 | {99, 107}, |
| 1307 | {99, 99}, |
| 1308 | {67, 120}, |
| 1309 | {67, 113}, |
| 1310 | {67, 107}, |
| 1311 | {67, 99}, |
| 1312 | {35, 120}, |
| 1313 | {35, 113}, |
| 1314 | {35, 107}, |
| 1315 | {35, 99}, |
| 1316 | {3, 120} } /* 5.x GHz, lowest power */ |
| 1317 | }; |
| 1318 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1319 | static inline u8 il3945_hw_reg_fix_power_idx(int idx) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1320 | { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1321 | if (idx < 0) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1322 | return 0; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1323 | if (idx >= IL_MAX_GAIN_ENTRIES) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1324 | return IL_MAX_GAIN_ENTRIES - 1; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1325 | return (u8) idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | /* Kick off thermal recalibration check every 60 seconds */ |
| 1329 | #define REG_RECALIB_PERIOD (60) |
| 1330 | |
| 1331 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1332 | * il3945_hw_reg_set_scan_power - Set Tx power for scan probe requests |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1333 | * |
| 1334 | * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK) |
| 1335 | * or 6 Mbit (OFDM) rates. |
| 1336 | */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1337 | static void il3945_hw_reg_set_scan_power(struct il_priv *il, u32 scan_tbl_idx, |
| 1338 | s32 rate_idx, const s8 *clip_pwrs, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1339 | struct il_channel_info *ch_info, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1340 | int band_idx) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1341 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1342 | struct il3945_scan_power_info *scan_power_info; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1343 | s8 power; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1344 | u8 power_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1345 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1346 | scan_power_info = &ch_info->scan_pwr_info[scan_tbl_idx]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1347 | |
| 1348 | /* use this channel group's 6Mbit clipping/saturation pwr, |
| 1349 | * but cap at regulatory scan power restriction (set during init |
| 1350 | * based on eeprom channel data) for this channel. */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1351 | power = min(ch_info->scan_power, clip_pwrs[RATE_6M_IDX_TBL]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1352 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1353 | power = min(power, il->tx_power_user_lmt); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1354 | scan_power_info->requested_power = power; |
| 1355 | |
| 1356 | /* find difference between new scan *power* and current "normal" |
| 1357 | * Tx *power* for 6Mb. Use this difference (x2) to adjust the |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1358 | * current "normal" temperature-compensated Tx power *idx* for |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1359 | * this rate (1Mb or 6Mb) to yield new temp-compensated scan power |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1360 | * *idx*. */ |
| 1361 | power_idx = ch_info->power_info[rate_idx].power_table_idx |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1362 | - (power - ch_info->power_info |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1363 | [RATE_6M_IDX_TBL].requested_power) * 2; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1364 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1365 | /* store reference idx that we use when adjusting *all* scan |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1366 | * powers. So we can accommodate user (all channel) or spectrum |
| 1367 | * management (single channel) power changes "between" temperature |
| 1368 | * feedback compensation procedures. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1369 | * don't force fit this reference idx into gain table; it may be a |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1370 | * negative number. This will help avoid errors when we're at |
| 1371 | * the lower bounds (highest gains, for warmest temperatures) |
| 1372 | * of the table. */ |
| 1373 | |
| 1374 | /* don't exceed table bounds for "real" setting */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1375 | power_idx = il3945_hw_reg_fix_power_idx(power_idx); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1376 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1377 | scan_power_info->power_table_idx = power_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1378 | scan_power_info->tpc.tx_gain = |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1379 | power_gain_table[band_idx][power_idx].tx_gain; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1380 | scan_power_info->tpc.dsp_atten = |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1381 | power_gain_table[band_idx][power_idx].dsp_atten; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1382 | } |
| 1383 | |
| 1384 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1385 | * il3945_send_tx_power - fill in Tx Power command with gain settings |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1386 | * |
| 1387 | * Configures power settings for all rates for the current channel, |
| 1388 | * using values from channel info struct, and send to NIC |
| 1389 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1390 | static int il3945_send_tx_power(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1391 | { |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1392 | int rate_idx, i; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1393 | const struct il_channel_info *ch_info = NULL; |
| 1394 | struct il3945_txpowertable_cmd txpower = { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1395 | .channel = il->ctx.active.channel, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1396 | }; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1397 | u16 chan; |
| 1398 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1399 | if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &il->status), |
Stanislaw Gruszka | 4beeba7 | 2010-10-25 10:34:50 +0200 | [diff] [blame] | 1400 | "TX Power requested while scanning!\n")) |
| 1401 | return -EAGAIN; |
| 1402 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1403 | chan = le16_to_cpu(il->ctx.active.channel); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1404 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1405 | txpower.band = (il->band == IEEE80211_BAND_5GHZ) ? 0 : 1; |
| 1406 | ch_info = il_get_channel_info(il, il->band, chan); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1407 | if (!ch_info) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1408 | IL_ERR( |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1409 | "Failed to get channel info for channel %d [%d]\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1410 | chan, il->band); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1411 | return -EINVAL; |
| 1412 | } |
| 1413 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1414 | if (!il_is_channel_valid(ch_info)) { |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1415 | D_POWER("Not calling TX_PWR_TBL_CMD on " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1416 | "non-Tx channel.\n"); |
| 1417 | return 0; |
| 1418 | } |
| 1419 | |
| 1420 | /* fill cmd with power settings for all rates for current channel */ |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1421 | /* Fill OFDM rate */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1422 | for (rate_idx = IL_FIRST_OFDM_RATE, i = 0; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1423 | rate_idx <= IL39_LAST_OFDM_RATE; rate_idx++, i++) { |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1424 | |
| 1425 | txpower.power[i].tpc = ch_info->power_info[i].tpc; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1426 | txpower.power[i].rate = il3945_rates[rate_idx].plcp; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1427 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1428 | D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1429 | le16_to_cpu(txpower.channel), |
| 1430 | txpower.band, |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1431 | txpower.power[i].tpc.tx_gain, |
| 1432 | txpower.power[i].tpc.dsp_atten, |
| 1433 | txpower.power[i].rate); |
| 1434 | } |
| 1435 | /* Fill CCK rates */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1436 | for (rate_idx = IL_FIRST_CCK_RATE; |
| 1437 | rate_idx <= IL_LAST_CCK_RATE; rate_idx++, i++) { |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1438 | txpower.power[i].tpc = ch_info->power_info[i].tpc; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1439 | txpower.power[i].rate = il3945_rates[rate_idx].plcp; |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1440 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1441 | D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n", |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 1442 | le16_to_cpu(txpower.channel), |
| 1443 | txpower.band, |
| 1444 | txpower.power[i].tpc.tx_gain, |
| 1445 | txpower.power[i].tpc.dsp_atten, |
| 1446 | txpower.power[i].rate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1447 | } |
| 1448 | |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1449 | return il_send_cmd_pdu(il, REPLY_TX_PWR_TBL_CMD, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1450 | sizeof(struct il3945_txpowertable_cmd), |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 1451 | &txpower); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1452 | |
| 1453 | } |
| 1454 | |
| 1455 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1456 | * il3945_hw_reg_set_new_power - Configures power tables at new levels |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1457 | * @ch_info: Channel to update. Uses power_info.requested_power. |
| 1458 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1459 | * Replace requested_power and base_power_idx ch_info fields for |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1460 | * one channel. |
| 1461 | * |
| 1462 | * Called if user or spectrum management changes power preferences. |
| 1463 | * Takes into account h/w and modulation limitations (clip power). |
| 1464 | * |
| 1465 | * This does *not* send anything to NIC, just sets up ch_info for one channel. |
| 1466 | * |
| 1467 | * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to |
| 1468 | * properly fill out the scan powers, and actual h/w gain settings, |
| 1469 | * and send changes to NIC |
| 1470 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1471 | static int il3945_hw_reg_set_new_power(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1472 | struct il_channel_info *ch_info) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1473 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1474 | struct il3945_channel_power_info *power_info; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1475 | int power_changed = 0; |
| 1476 | int i; |
| 1477 | const s8 *clip_pwrs; |
| 1478 | int power; |
| 1479 | |
| 1480 | /* Get this chnlgrp's rate-to-max/clip-powers table */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1481 | clip_pwrs = il->_3945.clip_groups[ch_info->group_idx].clip_powers; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1482 | |
| 1483 | /* Get this channel's rate-to-current-power settings table */ |
| 1484 | power_info = ch_info->power_info; |
| 1485 | |
| 1486 | /* update OFDM Txpower settings */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1487 | for (i = RATE_6M_IDX_TBL; i <= RATE_54M_IDX_TBL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1488 | i++, ++power_info) { |
| 1489 | int delta_idx; |
| 1490 | |
| 1491 | /* limit new power to be no more than h/w capability */ |
| 1492 | power = min(ch_info->curr_txpow, clip_pwrs[i]); |
| 1493 | if (power == power_info->requested_power) |
| 1494 | continue; |
| 1495 | |
| 1496 | /* find difference between old and new requested powers, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1497 | * update base (non-temp-compensated) power idx */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1498 | delta_idx = (power - power_info->requested_power) * 2; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1499 | power_info->base_power_idx -= delta_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1500 | |
| 1501 | /* save new requested power value */ |
| 1502 | power_info->requested_power = power; |
| 1503 | |
| 1504 | power_changed = 1; |
| 1505 | } |
| 1506 | |
| 1507 | /* update CCK Txpower settings, based on OFDM 12M setting ... |
| 1508 | * ... all CCK power settings for a given channel are the *same*. */ |
| 1509 | if (power_changed) { |
| 1510 | power = |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1511 | ch_info->power_info[RATE_12M_IDX_TBL]. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1512 | requested_power + IL_CCK_FROM_OFDM_POWER_DIFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1513 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1514 | /* do all CCK rates' il3945_channel_power_info structures */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1515 | for (i = RATE_1M_IDX_TBL; i <= RATE_11M_IDX_TBL; i++) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1516 | power_info->requested_power = power; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1517 | power_info->base_power_idx = |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1518 | ch_info->power_info[RATE_12M_IDX_TBL]. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1519 | base_power_idx + IL_CCK_FROM_OFDM_IDX_DIFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1520 | ++power_info; |
| 1521 | } |
| 1522 | } |
| 1523 | |
| 1524 | return 0; |
| 1525 | } |
| 1526 | |
| 1527 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1528 | * il3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1529 | * |
| 1530 | * NOTE: Returned power limit may be less (but not more) than requested, |
| 1531 | * based strictly on regulatory (eeprom and spectrum mgt) limitations |
| 1532 | * (no consideration for h/w clipping limitations). |
| 1533 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1534 | static int il3945_hw_reg_get_ch_txpower_limit(struct il_channel_info *ch_info) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1535 | { |
| 1536 | s8 max_power; |
| 1537 | |
| 1538 | #if 0 |
| 1539 | /* if we're using TGd limits, use lower of TGd or EEPROM */ |
| 1540 | if (ch_info->tgd_data.max_power != 0) |
| 1541 | max_power = min(ch_info->tgd_data.max_power, |
| 1542 | ch_info->eeprom.max_power_avg); |
| 1543 | |
| 1544 | /* else just use EEPROM limits */ |
| 1545 | else |
| 1546 | #endif |
| 1547 | max_power = ch_info->eeprom.max_power_avg; |
| 1548 | |
| 1549 | return min(max_power, ch_info->max_power_avg); |
| 1550 | } |
| 1551 | |
| 1552 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1553 | * il3945_hw_reg_comp_txpower_temp - Compensate for temperature |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1554 | * |
| 1555 | * Compensate txpower settings of *all* channels for temperature. |
| 1556 | * This only accounts for the difference between current temperature |
| 1557 | * and the factory calibration temperatures, and bases the new settings |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1558 | * on the channel's base_power_idx. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1559 | * |
| 1560 | * If RxOn is "associated", this sends the new Txpower to NIC! |
| 1561 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1562 | static int il3945_hw_reg_comp_txpower_temp(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1563 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1564 | struct il_channel_info *ch_info = NULL; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1565 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1566 | int delta_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1567 | const s8 *clip_pwrs; /* array of h/w max power levels for each rate */ |
| 1568 | u8 a_band; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1569 | u8 rate_idx; |
| 1570 | u8 scan_tbl_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1571 | u8 i; |
| 1572 | int ref_temp; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1573 | int temperature = il->temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1574 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1575 | if (il->disable_tx_power_cal || |
| 1576 | test_bit(STATUS_SCANNING, &il->status)) { |
Wey-Yi Guy | 4e7033e | 2010-04-27 14:33:33 -0700 | [diff] [blame] | 1577 | /* do not perform tx power calibration */ |
| 1578 | return 0; |
| 1579 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1580 | /* set up new Tx power info for each and every channel, 2.4 and 5.x */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1581 | for (i = 0; i < il->channel_count; i++) { |
| 1582 | ch_info = &il->channel_info[i]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1583 | a_band = il_is_channel_a_band(ch_info); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1584 | |
| 1585 | /* Get this chnlgrp's factory calibration temperature */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1586 | ref_temp = (s16)eeprom->groups[ch_info->group_idx]. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1587 | temperature; |
| 1588 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1589 | /* get power idx adjustment based on current and factory |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1590 | * temps */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1591 | delta_idx = il3945_hw_reg_adjust_power_by_temp(temperature, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1592 | ref_temp); |
| 1593 | |
| 1594 | /* set tx power value for all rates, OFDM and CCK */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1595 | for (rate_idx = 0; rate_idx < RATE_COUNT_3945; |
| 1596 | rate_idx++) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1597 | int power_idx = |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1598 | ch_info->power_info[rate_idx].base_power_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1599 | |
| 1600 | /* temperature compensate */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1601 | power_idx += delta_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1602 | |
| 1603 | /* stay within table range */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1604 | power_idx = il3945_hw_reg_fix_power_idx(power_idx); |
| 1605 | ch_info->power_info[rate_idx]. |
| 1606 | power_table_idx = (u8) power_idx; |
| 1607 | ch_info->power_info[rate_idx].tpc = |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1608 | power_gain_table[a_band][power_idx]; |
| 1609 | } |
| 1610 | |
| 1611 | /* Get this chnlgrp's rate-to-max/clip-powers table */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1612 | clip_pwrs = il->_3945.clip_groups[ch_info->group_idx].clip_powers; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1613 | |
| 1614 | /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1615 | for (scan_tbl_idx = 0; |
| 1616 | scan_tbl_idx < IL_NUM_SCAN_RATES; scan_tbl_idx++) { |
| 1617 | s32 actual_idx = (scan_tbl_idx == 0) ? |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 1618 | RATE_1M_IDX_TBL : RATE_6M_IDX_TBL; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1619 | il3945_hw_reg_set_scan_power(il, scan_tbl_idx, |
| 1620 | actual_idx, clip_pwrs, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1621 | ch_info, a_band); |
| 1622 | } |
| 1623 | } |
| 1624 | |
| 1625 | /* send Txpower command for current channel to ucode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1626 | return il->cfg->ops->lib->send_tx_power(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1627 | } |
| 1628 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1629 | int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1630 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1631 | struct il_channel_info *ch_info; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1632 | s8 max_power; |
| 1633 | u8 a_band; |
| 1634 | u8 i; |
| 1635 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1636 | if (il->tx_power_user_lmt == power) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1637 | D_POWER("Requested Tx power same as current " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1638 | "limit: %ddBm.\n", power); |
| 1639 | return 0; |
| 1640 | } |
| 1641 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1642 | D_POWER("Setting upper limit clamp to %ddBm.\n", power); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1643 | il->tx_power_user_lmt = power; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1644 | |
| 1645 | /* set up new Tx powers for each and every channel, 2.4 and 5.x */ |
| 1646 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1647 | for (i = 0; i < il->channel_count; i++) { |
| 1648 | ch_info = &il->channel_info[i]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1649 | a_band = il_is_channel_a_band(ch_info); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1650 | |
| 1651 | /* find minimum power of all user and regulatory constraints |
| 1652 | * (does not consider h/w clipping limitations) */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1653 | max_power = il3945_hw_reg_get_ch_txpower_limit(ch_info); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1654 | max_power = min(power, max_power); |
| 1655 | if (max_power != ch_info->curr_txpow) { |
| 1656 | ch_info->curr_txpow = max_power; |
| 1657 | |
| 1658 | /* this considers the h/w clipping limitations */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1659 | il3945_hw_reg_set_new_power(il, ch_info); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1660 | } |
| 1661 | } |
| 1662 | |
| 1663 | /* update txpower settings for all channels, |
| 1664 | * send to NIC if associated. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1665 | il3945_is_temp_calib_needed(il); |
| 1666 | il3945_hw_reg_comp_txpower_temp(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1667 | |
| 1668 | return 0; |
| 1669 | } |
| 1670 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1671 | static int il3945_send_rxon_assoc(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1672 | struct il_rxon_context *ctx) |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1673 | { |
| 1674 | int rc = 0; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 1675 | struct il_rx_pkt *pkt; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1676 | struct il3945_rxon_assoc_cmd rxon_assoc; |
| 1677 | struct il_host_cmd cmd = { |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1678 | .id = REPLY_RXON_ASSOC, |
| 1679 | .len = sizeof(rxon_assoc), |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 1680 | .flags = CMD_WANT_SKB, |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1681 | .data = &rxon_assoc, |
| 1682 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1683 | const struct il_rxon_cmd *rxon1 = &ctx->staging; |
| 1684 | const struct il_rxon_cmd *rxon2 = &ctx->active; |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1685 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 1686 | if (rxon1->flags == rxon2->flags && |
| 1687 | rxon1->filter_flags == rxon2->filter_flags && |
| 1688 | rxon1->cck_basic_rates == rxon2->cck_basic_rates && |
| 1689 | rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1690 | D_INFO("Using current RXON_ASSOC. Not resending.\n"); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1691 | return 0; |
| 1692 | } |
| 1693 | |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1694 | rxon_assoc.flags = ctx->staging.flags; |
| 1695 | rxon_assoc.filter_flags = ctx->staging.filter_flags; |
| 1696 | rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates; |
| 1697 | rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates; |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1698 | rxon_assoc.reserved = 0; |
| 1699 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1700 | rc = il_send_cmd_sync(il, &cmd); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1701 | if (rc) |
| 1702 | return rc; |
| 1703 | |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 1704 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1705 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1706 | IL_ERR("Bad return from REPLY_RXON_ASSOC command\n"); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1707 | rc = -EIO; |
| 1708 | } |
| 1709 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1710 | il_free_pages(il, cmd.reply_page); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 1711 | |
| 1712 | return rc; |
| 1713 | } |
| 1714 | |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1715 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1716 | * il3945_commit_rxon - commit staging_rxon to hardware |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1717 | * |
| 1718 | * The RXON command in staging_rxon is committed to the hardware and |
| 1719 | * the active_rxon structure is updated with the new data. This |
| 1720 | * function correctly transitions out of the RXON_ASSOC_MSK state if |
| 1721 | * a HW tune is required based on the RXON structure changes. |
| 1722 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1723 | int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx) |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1724 | { |
| 1725 | /* cast away the const for active_rxon in this function */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1726 | struct il3945_rxon_cmd *active_rxon = (void *)&ctx->active; |
| 1727 | struct il3945_rxon_cmd *staging_rxon = (void *)&ctx->staging; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1728 | int rc = 0; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 1729 | bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1730 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1731 | if (test_bit(STATUS_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | adb90a0 | 2010-11-26 11:09:42 -0800 | [diff] [blame] | 1732 | return -EINVAL; |
| 1733 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1734 | if (!il_is_alive(il)) |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1735 | return -1; |
| 1736 | |
| 1737 | /* always get timestamp with Rx frame */ |
| 1738 | staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK; |
| 1739 | |
| 1740 | /* select antenna */ |
| 1741 | staging_rxon->flags &= |
| 1742 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1743 | staging_rxon->flags |= il3945_get_antenna_flags(il); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1744 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1745 | rc = il_check_rxon_cmd(il, ctx); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1746 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1747 | IL_ERR("Invalid RXON configuration. Not committing.\n"); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1748 | return -EINVAL; |
| 1749 | } |
| 1750 | |
| 1751 | /* If we don't need to send a full RXON, we can use |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1752 | * il3945_rxon_assoc_cmd which is used to reconfigure filter |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1753 | * and other flags for the current radio configuration. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1754 | if (!il_full_rxon_required(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1755 | &il->ctx)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1756 | rc = il_send_rxon_assoc(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1757 | &il->ctx); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1758 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1759 | IL_ERR("Error setting RXON_ASSOC " |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1760 | "configuration (%d).\n", rc); |
| 1761 | return rc; |
| 1762 | } |
| 1763 | |
| 1764 | memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); |
Stanislaw Gruszka | 17e859a | 2011-07-27 15:37:43 +0200 | [diff] [blame] | 1765 | /* |
| 1766 | * We do not commit tx power settings while channel changing, |
| 1767 | * do it now if tx power changed. |
| 1768 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1769 | il_set_tx_power(il, il->tx_power_next, false); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1770 | return 0; |
| 1771 | } |
| 1772 | |
| 1773 | /* If we are currently associated and the new config requires |
| 1774 | * an RXON_ASSOC and the new config wants the associated mask enabled, |
| 1775 | * we must clear the associated from the active configuration |
| 1776 | * before we apply the new config */ |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1777 | if (il_is_associated(il) && new_assoc) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1778 | D_INFO("Toggling associated bit on current RXON\n"); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1779 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 1780 | |
| 1781 | /* |
| 1782 | * reserved4 and 5 could have been filled by the iwlcore code. |
| 1783 | * Let's clear them before pushing to the 3945. |
| 1784 | */ |
| 1785 | active_rxon->reserved4 = 0; |
| 1786 | active_rxon->reserved5 = 0; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1787 | rc = il_send_cmd_pdu(il, REPLY_RXON, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1788 | sizeof(struct il3945_rxon_cmd), |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1789 | &il->ctx.active); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1790 | |
| 1791 | /* If the mask clearing failed then we set |
| 1792 | * active_rxon back to what it was previously */ |
| 1793 | if (rc) { |
| 1794 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1795 | IL_ERR("Error clearing ASSOC_MSK on current " |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1796 | "configuration (%d).\n", rc); |
| 1797 | return rc; |
| 1798 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1799 | il_clear_ucode_stations(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1800 | &il->ctx); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1801 | il_restore_stations(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1802 | &il->ctx); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1803 | } |
| 1804 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1805 | D_INFO("Sending RXON\n" |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1806 | "* with%s RXON_FILTER_ASSOC_MSK\n" |
| 1807 | "* channel = %d\n" |
| 1808 | "* bssid = %pM\n", |
| 1809 | (new_assoc ? "" : "out"), |
| 1810 | le16_to_cpu(staging_rxon->channel), |
| 1811 | staging_rxon->bssid_addr); |
| 1812 | |
| 1813 | /* |
| 1814 | * reserved4 and 5 could have been filled by the iwlcore code. |
| 1815 | * Let's clear them before pushing to the 3945. |
| 1816 | */ |
| 1817 | staging_rxon->reserved4 = 0; |
| 1818 | staging_rxon->reserved5 = 0; |
| 1819 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1820 | il_set_rxon_hwcrypto(il, ctx, !il3945_mod_params.sw_crypto); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1821 | |
| 1822 | /* Apply the new configuration */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1823 | rc = il_send_cmd_pdu(il, REPLY_RXON, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1824 | sizeof(struct il3945_rxon_cmd), |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1825 | staging_rxon); |
| 1826 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1827 | IL_ERR("Error setting new configuration (%d).\n", rc); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1828 | return rc; |
| 1829 | } |
| 1830 | |
| 1831 | memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); |
| 1832 | |
Reinette Chatre | 7e24619 | 2010-02-18 22:58:32 -0800 | [diff] [blame] | 1833 | if (!new_assoc) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1834 | il_clear_ucode_stations(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1835 | &il->ctx); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1836 | il_restore_stations(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 1837 | &il->ctx); |
Reinette Chatre | 7e24619 | 2010-02-18 22:58:32 -0800 | [diff] [blame] | 1838 | } |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1839 | |
| 1840 | /* If we issue a new RXON command which required a tune then we must |
| 1841 | * send a new TXPOWER command or we won't be able to Tx any frames */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1842 | rc = il_set_tx_power(il, il->tx_power_next, true); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1843 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1844 | IL_ERR("Error setting Tx power (%d).\n", rc); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1845 | return rc; |
| 1846 | } |
| 1847 | |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1848 | /* Init the hardware's rate fallback order based on the band */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1849 | rc = il3945_init_hw_rate_table(il); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1850 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1851 | IL_ERR("Error setting HW rate table: %02X\n", rc); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 1852 | return -EIO; |
| 1853 | } |
| 1854 | |
| 1855 | return 0; |
| 1856 | } |
| 1857 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1858 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1859 | * il3945_reg_txpower_periodic - called when time to check our temperature. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1860 | * |
| 1861 | * -- reset periodic timer |
| 1862 | * -- see if temp has changed enough to warrant re-calibration ... if so: |
| 1863 | * -- correct coeffs for temp (can reset temp timer) |
| 1864 | * -- save this temp as "last", |
| 1865 | * -- send new set of gain settings to NIC |
| 1866 | * NOTE: This should continue working, even when we're not associated, |
| 1867 | * so we can keep our internal table of scan powers current. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1868 | void il3945_reg_txpower_periodic(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1869 | { |
| 1870 | /* This will kick in the "brute force" |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1871 | * il3945_hw_reg_comp_txpower_temp() below */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1872 | if (!il3945_is_temp_calib_needed(il)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1873 | goto reschedule; |
| 1874 | |
| 1875 | /* Set up a new set of temp-adjusted TxPowers, send to NIC. |
| 1876 | * This is based *only* on current temperature, |
| 1877 | * ignoring any previous power measurements */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1878 | il3945_hw_reg_comp_txpower_temp(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1879 | |
| 1880 | reschedule: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1881 | queue_delayed_work(il->workqueue, |
| 1882 | &il->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1883 | } |
| 1884 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1885 | static void il3945_bg_reg_txpower_periodic(struct work_struct *work) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1886 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1887 | struct il_priv *il = container_of(work, struct il_priv, |
Johannes Berg | ee525d1 | 2010-01-21 06:09:28 -0800 | [diff] [blame] | 1888 | _3945.thermal_periodic.work); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1889 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1890 | if (test_bit(STATUS_EXIT_PENDING, &il->status)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1891 | return; |
| 1892 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1893 | mutex_lock(&il->mutex); |
| 1894 | il3945_reg_txpower_periodic(il); |
| 1895 | mutex_unlock(&il->mutex); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1896 | } |
| 1897 | |
| 1898 | /** |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1899 | * il3945_hw_reg_get_ch_grp_idx - find the channel-group idx (0-4) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1900 | * for the channel. |
| 1901 | * |
| 1902 | * This function is used when initializing channel-info structs. |
| 1903 | * |
| 1904 | * NOTE: These channel groups do *NOT* match the bands above! |
| 1905 | * These channel groups are based on factory-tested channels; |
| 1906 | * on A-band, EEPROM's "group frequency" entries represent the top |
| 1907 | * channel in each group 1-4. Group 5 All B/G channels are in group 0. |
| 1908 | */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1909 | static u16 il3945_hw_reg_get_ch_grp_idx(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1910 | const struct il_channel_info *ch_info) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1911 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1912 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1913 | struct il3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1914 | u8 group; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1915 | u16 group_idx = 0; /* based on factory calib frequencies */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1916 | u8 grp_channel; |
| 1917 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1918 | /* Find the group idx for the channel ... don't use idx 1(?) */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1919 | if (il_is_channel_a_band(ch_info)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1920 | for (group = 1; group < 5; group++) { |
| 1921 | grp_channel = ch_grp[group].group_channel; |
| 1922 | if (ch_info->channel <= grp_channel) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1923 | group_idx = group; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1924 | break; |
| 1925 | } |
| 1926 | } |
| 1927 | /* group 4 has a few channels *above* its factory cal freq */ |
| 1928 | if (group == 5) |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1929 | group_idx = 4; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1930 | } else |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1931 | group_idx = 0; /* 2.4 GHz, group 0 */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1932 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1933 | D_POWER("Chnl %d mapped to grp %d\n", ch_info->channel, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1934 | group_idx); |
| 1935 | return group_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1936 | } |
| 1937 | |
| 1938 | /** |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1939 | * il3945_hw_reg_get_matched_power_idx - Interpolate to get nominal idx |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1940 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1941 | * Interpolate to get nominal (i.e. at factory calibration temperature) idx |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1942 | * into radio/DSP gain settings table for requested power. |
| 1943 | */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1944 | static int il3945_hw_reg_get_matched_power_idx(struct il_priv *il, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1945 | s8 requested_power, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1946 | s32 setting_idx, s32 *new_idx) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1947 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1948 | const struct il3945_eeprom_txpower_group *chnl_grp = NULL; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1949 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1950 | s32 idx0, idx1; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1951 | s32 power = 2 * requested_power; |
| 1952 | s32 i; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1953 | const struct il3945_eeprom_txpower_sample *samples; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1954 | s32 gains0, gains1; |
| 1955 | s32 res; |
| 1956 | s32 denominator; |
| 1957 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1958 | chnl_grp = &eeprom->groups[setting_idx]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1959 | samples = chnl_grp->samples; |
| 1960 | for (i = 0; i < 5; i++) { |
| 1961 | if (power == samples[i].power) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1962 | *new_idx = samples[i].gain_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1963 | return 0; |
| 1964 | } |
| 1965 | } |
| 1966 | |
| 1967 | if (power > samples[1].power) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1968 | idx0 = 0; |
| 1969 | idx1 = 1; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1970 | } else if (power > samples[2].power) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1971 | idx0 = 1; |
| 1972 | idx1 = 2; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1973 | } else if (power > samples[3].power) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1974 | idx0 = 2; |
| 1975 | idx1 = 3; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1976 | } else { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1977 | idx0 = 3; |
| 1978 | idx1 = 4; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1979 | } |
| 1980 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1981 | denominator = (s32) samples[idx1].power - (s32) samples[idx0].power; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1982 | if (denominator == 0) |
| 1983 | return -EINVAL; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1984 | gains0 = (s32) samples[idx0].gain_idx * (1 << 19); |
| 1985 | gains1 = (s32) samples[idx1].gain_idx * (1 << 19); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1986 | res = gains0 + (gains1 - gains0) * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1987 | ((s32) power - (s32) samples[idx0].power) / denominator + |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1988 | (1 << 18); |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1989 | *new_idx = res >> 19; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1990 | return 0; |
| 1991 | } |
| 1992 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1993 | static void il3945_hw_reg_init_channel_groups(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1994 | { |
| 1995 | u32 i; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1996 | s32 rate_idx; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1997 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1998 | const struct il3945_eeprom_txpower_group *group; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1999 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2000 | D_POWER("Initializing factory calib info from EEPROM\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2001 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2002 | for (i = 0; i < IL_NUM_TX_CALIB_GROUPS; i++) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2003 | s8 *clip_pwrs; /* table of power levels for each rate */ |
| 2004 | s8 satur_pwr; /* saturation power for each chnl group */ |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2005 | group = &eeprom->groups[i]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2006 | |
| 2007 | /* sanity check on factory saturation power value */ |
| 2008 | if (group->saturation_power < 40) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2009 | IL_WARN("Error: saturation power is %d, " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2010 | "less than minimum expected 40\n", |
| 2011 | group->saturation_power); |
| 2012 | return; |
| 2013 | } |
| 2014 | |
| 2015 | /* |
| 2016 | * Derive requested power levels for each rate, based on |
| 2017 | * hardware capabilities (saturation power for band). |
| 2018 | * Basic value is 3dB down from saturation, with further |
| 2019 | * power reductions for highest 3 data rates. These |
| 2020 | * backoffs provide headroom for high rate modulation |
| 2021 | * power peaks, without too much distortion (clipping). |
| 2022 | */ |
| 2023 | /* we'll fill in this array with h/w max power levels */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2024 | clip_pwrs = (s8 *) il->_3945.clip_groups[i].clip_powers; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2025 | |
| 2026 | /* divide factory saturation power by 2 to find -3dB level */ |
| 2027 | satur_pwr = (s8) (group->saturation_power >> 1); |
| 2028 | |
| 2029 | /* fill in channel group's nominal powers for each rate */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2030 | for (rate_idx = 0; |
| 2031 | rate_idx < RATE_COUNT_3945; rate_idx++, clip_pwrs++) { |
| 2032 | switch (rate_idx) { |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2033 | case RATE_36M_IDX_TBL: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2034 | if (i == 0) /* B/G */ |
| 2035 | *clip_pwrs = satur_pwr; |
| 2036 | else /* A */ |
| 2037 | *clip_pwrs = satur_pwr - 5; |
| 2038 | break; |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2039 | case RATE_48M_IDX_TBL: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2040 | if (i == 0) |
| 2041 | *clip_pwrs = satur_pwr - 7; |
| 2042 | else |
| 2043 | *clip_pwrs = satur_pwr - 10; |
| 2044 | break; |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2045 | case RATE_54M_IDX_TBL: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2046 | if (i == 0) |
| 2047 | *clip_pwrs = satur_pwr - 9; |
| 2048 | else |
| 2049 | *clip_pwrs = satur_pwr - 12; |
| 2050 | break; |
| 2051 | default: |
| 2052 | *clip_pwrs = satur_pwr; |
| 2053 | break; |
| 2054 | } |
| 2055 | } |
| 2056 | } |
| 2057 | } |
| 2058 | |
| 2059 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2060 | * il3945_txpower_set_from_eeprom - Set channel power info based on EEPROM |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2061 | * |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2062 | * Second pass (during init) to set up il->channel_info |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2063 | * |
| 2064 | * Set up Tx-power settings in our channel info database for each VALID |
| 2065 | * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values |
| 2066 | * and current temperature. |
| 2067 | * |
| 2068 | * Since this is based on current temperature (at init time), these values may |
| 2069 | * not be valid for very long, but it gives us a starting/default point, |
| 2070 | * and allows us to active (i.e. using Tx) scan. |
| 2071 | * |
| 2072 | * This does *not* write values to NIC, just sets up our internal table. |
| 2073 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2074 | int il3945_txpower_set_from_eeprom(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2075 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2076 | struct il_channel_info *ch_info = NULL; |
| 2077 | struct il3945_channel_power_info *pwr_info; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2078 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2079 | int delta_idx; |
| 2080 | u8 rate_idx; |
| 2081 | u8 scan_tbl_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2082 | const s8 *clip_pwrs; /* array of power levels for each rate */ |
| 2083 | u8 gain, dsp_atten; |
| 2084 | s8 power; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2085 | u8 pwr_idx, base_pwr_idx, a_band; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2086 | u8 i; |
| 2087 | int temperature; |
| 2088 | |
| 2089 | /* save temperature reference, |
| 2090 | * so we can determine next time to calibrate */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2091 | temperature = il3945_hw_reg_txpower_get_temperature(il); |
| 2092 | il->last_temperature = temperature; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2093 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2094 | il3945_hw_reg_init_channel_groups(il); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2095 | |
| 2096 | /* initialize Tx power info for each and every channel, 2.4 and 5.x */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2097 | for (i = 0, ch_info = il->channel_info; i < il->channel_count; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2098 | i++, ch_info++) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2099 | a_band = il_is_channel_a_band(ch_info); |
| 2100 | if (!il_is_channel_valid(ch_info)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2101 | continue; |
| 2102 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2103 | /* find this channel's channel group (*not* "band") idx */ |
| 2104 | ch_info->group_idx = |
| 2105 | il3945_hw_reg_get_ch_grp_idx(il, ch_info); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2106 | |
| 2107 | /* Get this chnlgrp's rate->max/clip-powers table */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2108 | clip_pwrs = il->_3945.clip_groups[ch_info->group_idx].clip_powers; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2109 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2110 | /* calculate power idx *adjustment* value according to |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2111 | * diff between current temperature and factory temperature */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2112 | delta_idx = il3945_hw_reg_adjust_power_by_temp(temperature, |
| 2113 | eeprom->groups[ch_info->group_idx]. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2114 | temperature); |
| 2115 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2116 | D_POWER("Delta idx for channel %d: %d [%d]\n", |
| 2117 | ch_info->channel, delta_idx, temperature + |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2118 | IL_TEMP_CONVERT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2119 | |
| 2120 | /* set tx power value for all OFDM rates */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2121 | for (rate_idx = 0; rate_idx < IL_OFDM_RATES; |
| 2122 | rate_idx++) { |
John W. Linville | 25a4cce | 2009-01-12 14:44:52 -0500 | [diff] [blame] | 2123 | s32 uninitialized_var(power_idx); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2124 | int rc; |
| 2125 | |
| 2126 | /* use channel group's clip-power table, |
| 2127 | * but don't exceed channel's max power */ |
| 2128 | s8 pwr = min(ch_info->max_power_avg, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2129 | clip_pwrs[rate_idx]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2130 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2131 | pwr_info = &ch_info->power_info[rate_idx]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2132 | |
| 2133 | /* get base (i.e. at factory-measured temperature) |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2134 | * power table idx for this rate's power */ |
| 2135 | rc = il3945_hw_reg_get_matched_power_idx(il, pwr, |
| 2136 | ch_info->group_idx, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2137 | &power_idx); |
| 2138 | if (rc) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2139 | IL_ERR("Invalid power idx\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2140 | return rc; |
| 2141 | } |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2142 | pwr_info->base_power_idx = (u8) power_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2143 | |
| 2144 | /* temperature compensate */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2145 | power_idx += delta_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2146 | |
| 2147 | /* stay within range of gain table */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2148 | power_idx = il3945_hw_reg_fix_power_idx(power_idx); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2149 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2150 | /* fill 1 OFDM rate's il3945_channel_power_info struct */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2151 | pwr_info->requested_power = pwr; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2152 | pwr_info->power_table_idx = (u8) power_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2153 | pwr_info->tpc.tx_gain = |
| 2154 | power_gain_table[a_band][power_idx].tx_gain; |
| 2155 | pwr_info->tpc.dsp_atten = |
| 2156 | power_gain_table[a_band][power_idx].dsp_atten; |
| 2157 | } |
| 2158 | |
| 2159 | /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2160 | pwr_info = &ch_info->power_info[RATE_12M_IDX_TBL]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2161 | power = pwr_info->requested_power + |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2162 | IL_CCK_FROM_OFDM_POWER_DIFF; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2163 | pwr_idx = pwr_info->power_table_idx + |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 2164 | IL_CCK_FROM_OFDM_IDX_DIFF; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2165 | base_pwr_idx = pwr_info->base_power_idx + |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 2166 | IL_CCK_FROM_OFDM_IDX_DIFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2167 | |
| 2168 | /* stay within table range */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2169 | pwr_idx = il3945_hw_reg_fix_power_idx(pwr_idx); |
| 2170 | gain = power_gain_table[a_band][pwr_idx].tx_gain; |
| 2171 | dsp_atten = power_gain_table[a_band][pwr_idx].dsp_atten; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2172 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2173 | /* fill each CCK rate's il3945_channel_power_info structure |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2174 | * NOTE: All CCK-rate Txpwrs are the same for a given chnl! |
| 2175 | * NOTE: CCK rates start at end of OFDM rates! */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2176 | for (rate_idx = 0; |
| 2177 | rate_idx < IL_CCK_RATES; rate_idx++) { |
| 2178 | pwr_info = &ch_info->power_info[rate_idx+IL_OFDM_RATES]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2179 | pwr_info->requested_power = power; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2180 | pwr_info->power_table_idx = pwr_idx; |
| 2181 | pwr_info->base_power_idx = base_pwr_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2182 | pwr_info->tpc.tx_gain = gain; |
| 2183 | pwr_info->tpc.dsp_atten = dsp_atten; |
| 2184 | } |
| 2185 | |
| 2186 | /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2187 | for (scan_tbl_idx = 0; |
| 2188 | scan_tbl_idx < IL_NUM_SCAN_RATES; scan_tbl_idx++) { |
| 2189 | s32 actual_idx = (scan_tbl_idx == 0) ? |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2190 | RATE_1M_IDX_TBL : RATE_6M_IDX_TBL; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2191 | il3945_hw_reg_set_scan_power(il, scan_tbl_idx, |
| 2192 | actual_idx, clip_pwrs, ch_info, a_band); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2193 | } |
| 2194 | } |
| 2195 | |
| 2196 | return 0; |
| 2197 | } |
| 2198 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2199 | int il3945_hw_rxq_stop(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2200 | { |
| 2201 | int rc; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2202 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 2203 | il_wr(il, FH39_RCSR_CONFIG(0), 0); |
| 2204 | rc = il_poll_bit(il, FH39_RSSR_STATUS, |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 2205 | FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2206 | if (rc < 0) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2207 | IL_ERR("Can't stop Rx DMA.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2208 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2209 | return 0; |
| 2210 | } |
| 2211 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2212 | int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2213 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2214 | int txq_id = txq->q.id; |
| 2215 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2216 | struct il3945_shared *shared_data = il->_3945.shared_virt; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2217 | |
| 2218 | shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr); |
| 2219 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 2220 | il_wr(il, FH39_CBCC_CTRL(txq_id), 0); |
| 2221 | il_wr(il, FH39_CBCC_BASE(txq_id), 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2222 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 2223 | il_wr(il, FH39_TCSR_CONFIG(txq_id), |
Tomas Winkler | bddadf8 | 2008-12-19 10:37:01 +0800 | [diff] [blame] | 2224 | FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT | |
| 2225 | FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF | |
| 2226 | FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD | |
| 2227 | FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL | |
| 2228 | FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2229 | |
| 2230 | /* fake read to flush all prev. writes */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2231 | _il_rd(il, FH39_TSSR_CBB_BASE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2232 | |
| 2233 | return 0; |
| 2234 | } |
| 2235 | |
Kolekar, Abhijeet | 42427b4 | 2008-12-22 11:31:15 +0800 | [diff] [blame] | 2236 | /* |
| 2237 | * HCMD utils |
| 2238 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2239 | static u16 il3945_get_hcmd_size(u8 cmd_id, u16 len) |
Kolekar, Abhijeet | 42427b4 | 2008-12-22 11:31:15 +0800 | [diff] [blame] | 2240 | { |
| 2241 | switch (cmd_id) { |
| 2242 | case REPLY_RXON: |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2243 | return sizeof(struct il3945_rxon_cmd); |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2244 | case POWER_TBL_CMD: |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2245 | return sizeof(struct il3945_powertable_cmd); |
Kolekar, Abhijeet | 42427b4 | 2008-12-22 11:31:15 +0800 | [diff] [blame] | 2246 | default: |
| 2247 | return len; |
| 2248 | } |
| 2249 | } |
| 2250 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2251 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2252 | static u16 il3945_build_addsta_hcmd(const struct il_addsta_cmd *cmd, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 2253 | u8 *data) |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 2254 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2255 | struct il3945_addsta_cmd *addsta = (struct il3945_addsta_cmd *)data; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2256 | addsta->mode = cmd->mode; |
| 2257 | memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify)); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2258 | memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo)); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2259 | addsta->station_flags = cmd->station_flags; |
| 2260 | addsta->station_flags_msk = cmd->station_flags_msk; |
| 2261 | addsta->tid_disable_tx = cpu_to_le16(0); |
| 2262 | addsta->rate_n_flags = cmd->rate_n_flags; |
| 2263 | addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid; |
| 2264 | addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid; |
| 2265 | addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn; |
| 2266 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2267 | return (u16)sizeof(struct il3945_addsta_cmd); |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 2268 | } |
| 2269 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2270 | static int il3945_add_bssid_station(struct il_priv *il, |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2271 | const u8 *addr, u8 *sta_id_r) |
| 2272 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2273 | struct il_rxon_context *ctx = &il->ctx; |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2274 | int ret; |
| 2275 | u8 sta_id; |
| 2276 | unsigned long flags; |
| 2277 | |
| 2278 | if (sta_id_r) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2279 | *sta_id_r = IL_INVALID_STATION; |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2280 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2281 | ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id); |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2282 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2283 | IL_ERR("Unable to add station %pM\n", addr); |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2284 | return ret; |
| 2285 | } |
| 2286 | |
| 2287 | if (sta_id_r) |
| 2288 | *sta_id_r = sta_id; |
| 2289 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2290 | spin_lock_irqsave(&il->sta_lock, flags); |
| 2291 | il->stations[sta_id].used |= IL_STA_LOCAL; |
| 2292 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2293 | |
| 2294 | return 0; |
| 2295 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2296 | static int il3945_manage_ibss_station(struct il_priv *il, |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2297 | struct ieee80211_vif *vif, bool add) |
| 2298 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2299 | struct il_vif_priv *vif_priv = (void *)vif->drv_priv; |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2300 | int ret; |
| 2301 | |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2302 | if (add) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2303 | ret = il3945_add_bssid_station(il, vif->bss_conf.bssid, |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 2304 | &vif_priv->ibss_bssid_sta_id); |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2305 | if (ret) |
| 2306 | return ret; |
| 2307 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2308 | il3945_sync_sta(il, vif_priv->ibss_bssid_sta_id, |
| 2309 | (il->band == IEEE80211_BAND_5GHZ) ? |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2310 | RATE_6M_PLCP : RATE_1M_PLCP); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2311 | il3945_rate_scale_init(il->hw, vif_priv->ibss_bssid_sta_id); |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2312 | |
| 2313 | return 0; |
| 2314 | } |
| 2315 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2316 | return il_remove_station(il, vif_priv->ibss_bssid_sta_id, |
Johannes Berg | fd1af15 | 2010-04-30 11:30:43 -0700 | [diff] [blame] | 2317 | vif->bss_conf.bssid); |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 2318 | } |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2319 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2320 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2321 | * il3945_init_hw_rate_table - Initialize the hardware rate fallback table |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2322 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2323 | int il3945_init_hw_rate_table(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2324 | { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2325 | int rc, i, idx, prev_idx; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2326 | struct il3945_rate_scaling_cmd rate_cmd = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2327 | .reserved = {0, 0, 0}, |
| 2328 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2329 | struct il3945_rate_scaling_info *table = rate_cmd.table; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2330 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2331 | for (i = 0; i < ARRAY_SIZE(il3945_rates); i++) { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2332 | idx = il3945_rates[i].table_rs_idx; |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 2333 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2334 | table[idx].rate_n_flags = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2335 | il3945_hw_set_rate_n_flags(il3945_rates[i].plcp, 0); |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2336 | table[idx].try_cnt = il->retry_rate; |
| 2337 | prev_idx = il3945_get_prev_ieee_rate(i); |
| 2338 | table[idx].next_rate_idx = |
| 2339 | il3945_rates[prev_idx].table_rs_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2340 | } |
| 2341 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2342 | switch (il->band) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2343 | case IEEE80211_BAND_5GHZ: |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2344 | D_RATE("Select A mode rate scale\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2345 | /* If one of the following CCK rates is used, |
| 2346 | * have it fall back to the 6M OFDM rate */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2347 | for (i = RATE_1M_IDX_TBL; |
| 2348 | i <= RATE_11M_IDX_TBL; i++) |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2349 | table[i].next_rate_idx = |
| 2350 | il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2351 | |
| 2352 | /* Don't fall back to CCK rates */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2353 | table[RATE_12M_IDX_TBL].next_rate_idx = |
| 2354 | RATE_9M_IDX_TBL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2355 | |
| 2356 | /* Don't drop out of OFDM rates */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2357 | table[RATE_6M_IDX_TBL].next_rate_idx = |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2358 | il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2359 | break; |
| 2360 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2361 | case IEEE80211_BAND_2GHZ: |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2362 | D_RATE("Select B/G mode rate scale\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2363 | /* If an OFDM rate is used, have it fall back to the |
| 2364 | * 1M CCK rates */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2365 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2366 | if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) && |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2367 | il_is_associated(il)) { |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 2368 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2369 | idx = IL_FIRST_CCK_RATE; |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2370 | for (i = RATE_6M_IDX_TBL; |
| 2371 | i <= RATE_54M_IDX_TBL; i++) |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 2372 | table[i].next_rate_idx = |
| 2373 | il3945_rates[idx].table_rs_idx; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 2374 | |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2375 | idx = RATE_11M_IDX_TBL; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 2376 | /* CCK shouldn't fall back to OFDM... */ |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 2377 | table[idx].next_rate_idx = RATE_5M_IDX_TBL; |
Abbas, Mohamed | 7262796 | 2008-12-05 07:58:37 -0800 | [diff] [blame] | 2378 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2379 | break; |
| 2380 | |
| 2381 | default: |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2382 | WARN_ON(1); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2383 | break; |
| 2384 | } |
| 2385 | |
| 2386 | /* Update the rate scaling for control frame Tx */ |
| 2387 | rate_cmd.table_id = 0; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2388 | rc = il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2389 | &rate_cmd); |
| 2390 | if (rc) |
| 2391 | return rc; |
| 2392 | |
| 2393 | /* Update the rate scaling for data frame Tx */ |
| 2394 | rate_cmd.table_id = 1; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2395 | return il_send_cmd_pdu(il, REPLY_RATE_SCALE, sizeof(rate_cmd), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2396 | &rate_cmd); |
| 2397 | } |
| 2398 | |
Ben Cahill | 796083c | 2007-11-29 11:09:45 +0800 | [diff] [blame] | 2399 | /* Called when initializing driver */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2400 | int il3945_hw_set_hw_params(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2401 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2402 | memset((void *)&il->hw_params, 0, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2403 | sizeof(struct il_hw_params)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2404 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2405 | il->_3945.shared_virt = |
| 2406 | dma_alloc_coherent(&il->pci_dev->dev, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2407 | sizeof(struct il3945_shared), |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2408 | &il->_3945.shared_phys, GFP_KERNEL); |
| 2409 | if (!il->_3945.shared_virt) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2410 | IL_ERR("failed to allocate pci memory\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2411 | return -ENOMEM; |
| 2412 | } |
| 2413 | |
Abhijeet Kolekar | 21c02a1 | 2009-03-17 21:51:48 -0700 | [diff] [blame] | 2414 | /* Assign number of Usable TX queues */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2415 | il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues; |
Abhijeet Kolekar | 21c02a1 | 2009-03-17 21:51:48 -0700 | [diff] [blame] | 2416 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2417 | il->hw_params.tfd_size = sizeof(struct il3945_tfd); |
| 2418 | il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_3K); |
| 2419 | il->hw_params.max_rxq_size = RX_QUEUE_SIZE; |
| 2420 | il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2421 | il->hw_params.max_stations = IL3945_STATION_COUNT; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2422 | il->ctx.bcast_sta_id = IL3945_BROADCAST_ID; |
Tomas Winkler | 3e82a82 | 2008-02-13 11:32:31 -0800 | [diff] [blame] | 2423 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2424 | il->sta_key_max_num = STA_KEY_MAX_NUM; |
Johannes Berg | c10afb6 | 2010-08-23 10:46:43 +0200 | [diff] [blame] | 2425 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2426 | il->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2427 | il->hw_params.max_beacon_itrvl = IL39_MAX_UCODE_BEACON_INTERVAL; |
| 2428 | il->hw_params.beacon_time_tsf_bits = IL3945_EXT_BEACON_TIME_POS; |
Winkler, Tomas | 141c43a | 2009-01-08 10:19:53 -0800 | [diff] [blame] | 2429 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2430 | return 0; |
| 2431 | } |
| 2432 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2433 | unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2434 | struct il3945_frame *frame, u8 rate) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2435 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2436 | struct il3945_tx_beacon_cmd *tx_beacon_cmd; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2437 | unsigned int frame_size; |
| 2438 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2439 | tx_beacon_cmd = (struct il3945_tx_beacon_cmd *)&frame->u; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2440 | memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); |
| 2441 | |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 2442 | tx_beacon_cmd->tx.sta_id = |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2443 | il->ctx.bcast_sta_id; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2444 | tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 2445 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2446 | frame_size = il3945_fill_beacon_frame(il, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2447 | tx_beacon_cmd->frame, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2448 | sizeof(frame->u) - sizeof(*tx_beacon_cmd)); |
| 2449 | |
| 2450 | BUG_ON(frame_size > MAX_MPDU_SIZE); |
| 2451 | tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
| 2452 | |
| 2453 | tx_beacon_cmd->tx.rate = rate; |
| 2454 | tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK | |
| 2455 | TX_CMD_FLG_TSF_MSK); |
| 2456 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2457 | /* supp_rates[0] == OFDM start at IL_FIRST_OFDM_RATE*/ |
Mohamed Abbas | 14577f2 | 2007-11-12 11:37:42 +0800 | [diff] [blame] | 2458 | tx_beacon_cmd->tx.supp_rates[0] = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2459 | (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2460 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2461 | tx_beacon_cmd->tx.supp_rates[1] = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2462 | (IL_CCK_BASIC_RATES_MASK & 0xF); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2463 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2464 | return sizeof(struct il3945_tx_beacon_cmd) + frame_size; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2465 | } |
| 2466 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2467 | void il3945_hw_rx_handler_setup(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2468 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2469 | il->rx_handlers[REPLY_TX] = il3945_rx_reply_tx; |
| 2470 | il->rx_handlers[REPLY_3945_RX] = il3945_rx_reply_rx; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2471 | } |
| 2472 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2473 | void il3945_hw_setup_deferred_work(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2474 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2475 | INIT_DELAYED_WORK(&il->_3945.thermal_periodic, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2476 | il3945_bg_reg_txpower_periodic); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2477 | } |
| 2478 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2479 | void il3945_hw_cancel_deferred_work(struct il_priv *il) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2480 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2481 | cancel_delayed_work(&il->_3945.thermal_periodic); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2482 | } |
| 2483 | |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2484 | /* check contents of special bootstrap uCode SRAM */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2485 | static int il3945_verify_bsm(struct il_priv *il) |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2486 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2487 | __le32 *image = il->ucode_boot.v_addr; |
| 2488 | u32 len = il->ucode_boot.len; |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2489 | u32 reg; |
| 2490 | u32 val; |
| 2491 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2492 | D_INFO("Begin verify bsm\n"); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2493 | |
| 2494 | /* verify BSM SRAM contents */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2495 | val = il_rd_prph(il, BSM_WR_DWCOUNT_REG); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2496 | for (reg = BSM_SRAM_LOWER_BOUND; |
| 2497 | reg < BSM_SRAM_LOWER_BOUND + len; |
| 2498 | reg += sizeof(u32), image++) { |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2499 | val = il_rd_prph(il, reg); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2500 | if (val != le32_to_cpu(*image)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2501 | IL_ERR("BSM uCode verification failed at " |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2502 | "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n", |
| 2503 | BSM_SRAM_LOWER_BOUND, |
| 2504 | reg - BSM_SRAM_LOWER_BOUND, len, |
| 2505 | val, le32_to_cpu(*image)); |
| 2506 | return -EIO; |
| 2507 | } |
| 2508 | } |
| 2509 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2510 | D_INFO("BSM bootstrap uCode image OK\n"); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2511 | |
| 2512 | return 0; |
| 2513 | } |
| 2514 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2515 | |
| 2516 | /****************************************************************************** |
| 2517 | * |
| 2518 | * EEPROM related functions |
| 2519 | * |
| 2520 | ******************************************************************************/ |
| 2521 | |
| 2522 | /* |
| 2523 | * Clear the OWNER_MSK, to establish driver (instead of uCode running on |
| 2524 | * embedded controller) as EEPROM reader; each read is a series of pulses |
| 2525 | * to/from the EEPROM chip, not a single event, so even reads could conflict |
| 2526 | * if they weren't arbitrated by some ownership mechanism. Here, the driver |
| 2527 | * simply claims ownership, which should be safe when this function is called |
| 2528 | * (i.e. before loading uCode!). |
| 2529 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2530 | static int il3945_eeprom_acquire_semaphore(struct il_priv *il) |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2531 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2532 | _il_clear_bit(il, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK); |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2533 | return 0; |
| 2534 | } |
| 2535 | |
| 2536 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2537 | static void il3945_eeprom_release_semaphore(struct il_priv *il) |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2538 | { |
| 2539 | return; |
| 2540 | } |
| 2541 | |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2542 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2543 | * il3945_load_bsm - Load bootstrap instructions |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2544 | * |
| 2545 | * BSM operation: |
| 2546 | * |
| 2547 | * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program |
| 2548 | * in special SRAM that does not power down during RFKILL. When powering back |
| 2549 | * up after power-saving sleeps (or during initial uCode load), the BSM loads |
| 2550 | * the bootstrap program into the on-board processor, and starts it. |
| 2551 | * |
| 2552 | * The bootstrap program loads (via DMA) instructions and data for a new |
| 2553 | * program from host DRAM locations indicated by the host driver in the |
| 2554 | * BSM_DRAM_* registers. Once the new program is loaded, it starts |
| 2555 | * automatically. |
| 2556 | * |
| 2557 | * When initializing the NIC, the host driver points the BSM to the |
| 2558 | * "initialize" uCode image. This uCode sets up some internal data, then |
| 2559 | * notifies host via "initialize alive" that it is complete. |
| 2560 | * |
| 2561 | * The host then replaces the BSM_DRAM_* pointer values to point to the |
| 2562 | * normal runtime uCode instructions and a backup uCode data cache buffer |
| 2563 | * (filled initially with starting data values for the on-board processor), |
| 2564 | * then triggers the "initialize" uCode to load and launch the runtime uCode, |
| 2565 | * which begins normal operation. |
| 2566 | * |
| 2567 | * When doing a power-save shutdown, runtime uCode saves data SRAM into |
| 2568 | * the backup data cache in DRAM before SRAM is powered down. |
| 2569 | * |
| 2570 | * When powering back up, the BSM loads the bootstrap program. This reloads |
| 2571 | * the runtime uCode instructions and the backup data cache into SRAM, |
| 2572 | * and re-launches the runtime uCode from where it left off. |
| 2573 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2574 | static int il3945_load_bsm(struct il_priv *il) |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2575 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2576 | __le32 *image = il->ucode_boot.v_addr; |
| 2577 | u32 len = il->ucode_boot.len; |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2578 | dma_addr_t pinst; |
| 2579 | dma_addr_t pdata; |
| 2580 | u32 inst_len; |
| 2581 | u32 data_len; |
| 2582 | int rc; |
| 2583 | int i; |
| 2584 | u32 done; |
| 2585 | u32 reg_offset; |
| 2586 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2587 | D_INFO("Begin load bsm\n"); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2588 | |
| 2589 | /* make sure bootstrap program is no larger than BSM's SRAM size */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2590 | if (len > IL39_MAX_BSM_SIZE) |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2591 | return -EINVAL; |
| 2592 | |
| 2593 | /* Tell bootstrap uCode where to find the "Initialize" uCode |
| 2594 | * in host DRAM ... host DRAM physical address bits 31:0 for 3945. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2595 | * NOTE: il3945_initialize_alive_start() will replace these values, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2596 | * after the "initialize" uCode has run, to point to |
| 2597 | * runtime/protocol instructions and backup data cache. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2598 | pinst = il->ucode_init.p_addr; |
| 2599 | pdata = il->ucode_init_data.p_addr; |
| 2600 | inst_len = il->ucode_init.len; |
| 2601 | data_len = il->ucode_init_data.len; |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2602 | |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2603 | il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); |
| 2604 | il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); |
| 2605 | il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len); |
| 2606 | il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2607 | |
| 2608 | /* Fill BSM memory with bootstrap instructions */ |
| 2609 | for (reg_offset = BSM_SRAM_LOWER_BOUND; |
| 2610 | reg_offset < BSM_SRAM_LOWER_BOUND + len; |
| 2611 | reg_offset += sizeof(u32), image++) |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2612 | _il_wr_prph(il, reg_offset, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2613 | le32_to_cpu(*image)); |
| 2614 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2615 | rc = il3945_verify_bsm(il); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 2616 | if (rc) |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2617 | return rc; |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2618 | |
| 2619 | /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2620 | il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0); |
| 2621 | il_wr_prph(il, BSM_WR_MEM_DST_REG, |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2622 | IL39_RTC_INST_LOWER_BOUND); |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2623 | il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32)); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2624 | |
| 2625 | /* Load bootstrap code into instruction SRAM now, |
| 2626 | * to prepare to load "initialize" uCode */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2627 | il_wr_prph(il, BSM_WR_CTRL_REG, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2628 | BSM_WR_CTRL_REG_BIT_START); |
| 2629 | |
| 2630 | /* Wait for load of bootstrap uCode to finish */ |
| 2631 | for (i = 0; i < 100; i++) { |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2632 | done = il_rd_prph(il, BSM_WR_CTRL_REG); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2633 | if (!(done & BSM_WR_CTRL_REG_BIT_START)) |
| 2634 | break; |
| 2635 | udelay(10); |
| 2636 | } |
| 2637 | if (i < 100) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2638 | D_INFO("BSM write complete, poll %d iterations\n", i); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2639 | else { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2640 | IL_ERR("BSM write did not complete!\n"); |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2641 | return -EIO; |
| 2642 | } |
| 2643 | |
| 2644 | /* Enable future boot loads whenever power management unit triggers it |
| 2645 | * (e.g. when powering back up after power-save shutdown) */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2646 | il_wr_prph(il, BSM_WR_CTRL_REG, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2647 | BSM_WR_CTRL_REG_BIT_START_EN); |
| 2648 | |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2649 | return 0; |
| 2650 | } |
| 2651 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2652 | static struct il_hcmd_ops il3945_hcmd = { |
| 2653 | .rxon_assoc = il3945_send_rxon_assoc, |
| 2654 | .commit_rxon = il3945_commit_rxon, |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2655 | }; |
| 2656 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2657 | static struct il_lib_ops il3945_lib = { |
| 2658 | .txq_attach_buf_to_tfd = il3945_hw_txq_attach_buf_to_tfd, |
| 2659 | .txq_free_tfd = il3945_hw_txq_free_tfd, |
| 2660 | .txq_init = il3945_hw_tx_queue_init, |
| 2661 | .load_ucode = il3945_load_bsm, |
| 2662 | .dump_nic_error_log = il3945_dump_nic_error_log, |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 2663 | .apm_ops = { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2664 | .init = il3945_apm_init, |
| 2665 | .config = il3945_nic_config, |
Kolekar, Abhijeet | 01ec616 | 2008-12-19 10:37:38 +0800 | [diff] [blame] | 2666 | }, |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2667 | .eeprom_ops = { |
| 2668 | .regulatory_bands = { |
| 2669 | EEPROM_REGULATORY_BAND_1_CHANNELS, |
| 2670 | EEPROM_REGULATORY_BAND_2_CHANNELS, |
| 2671 | EEPROM_REGULATORY_BAND_3_CHANNELS, |
| 2672 | EEPROM_REGULATORY_BAND_4_CHANNELS, |
| 2673 | EEPROM_REGULATORY_BAND_5_CHANNELS, |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 2674 | EEPROM_REGULATORY_BAND_NO_HT40, |
| 2675 | EEPROM_REGULATORY_BAND_NO_HT40, |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2676 | }, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2677 | .acquire_semaphore = il3945_eeprom_acquire_semaphore, |
| 2678 | .release_semaphore = il3945_eeprom_release_semaphore, |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2679 | }, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2680 | .send_tx_power = il3945_send_tx_power, |
| 2681 | .is_valid_rtc_data_addr = il3945_hw_valid_rtc_data_addr, |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 2682 | |
| 2683 | .debugfs_ops = { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2684 | .rx_stats_read = il3945_ucode_rx_stats_read, |
| 2685 | .tx_stats_read = il3945_ucode_tx_stats_read, |
| 2686 | .general_stats_read = il3945_ucode_general_stats_read, |
Abhijeet Kolekar | 17f36fc | 2010-04-16 10:03:54 -0700 | [diff] [blame] | 2687 | }, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2688 | }; |
| 2689 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2690 | static const struct il_legacy_ops il3945_legacy_ops = { |
| 2691 | .post_associate = il3945_post_associate, |
| 2692 | .config_ap = il3945_config_ap, |
| 2693 | .manage_ibss_station = il3945_manage_ibss_station, |
Johannes Berg | 2295c66 | 2010-10-23 09:15:41 -0700 | [diff] [blame] | 2694 | }; |
| 2695 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2696 | static struct il_hcmd_utils_ops il3945_hcmd_utils = { |
| 2697 | .get_hcmd_size = il3945_get_hcmd_size, |
| 2698 | .build_addsta_hcmd = il3945_build_addsta_hcmd, |
| 2699 | .request_scan = il3945_request_scan, |
| 2700 | .post_scan = il3945_post_scan, |
Kolekar, Abhijeet | 42427b4 | 2008-12-22 11:31:15 +0800 | [diff] [blame] | 2701 | }; |
| 2702 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2703 | static const struct il_ops il3945_ops = { |
| 2704 | .lib = &il3945_lib, |
| 2705 | .hcmd = &il3945_hcmd, |
| 2706 | .utils = &il3945_hcmd_utils, |
| 2707 | .led = &il3945_led_ops, |
| 2708 | .legacy = &il3945_legacy_ops, |
| 2709 | .ieee80211_ops = &il3945_hw_ops, |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2710 | }; |
| 2711 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2712 | static struct il_base_params il3945_base_params = { |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2713 | .eeprom_size = IL3945_EEPROM_IMG_SIZE, |
| 2714 | .num_of_queues = IL39_NUM_QUEUES, |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 2715 | .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL, |
| 2716 | .set_l0s = false, |
| 2717 | .use_bsm = true, |
Wey-Yi Guy | f2d0d0e | 2009-09-11 10:38:14 -0700 | [diff] [blame] | 2718 | .led_compensation = 64, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2719 | .wd_timeout = IL_DEF_WD_TIMEOUT, |
Tomas Winkler | 82b9a12 | 2008-03-04 18:09:30 -0800 | [diff] [blame] | 2720 | }; |
| 2721 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2722 | static struct il_cfg il3945_bg_cfg = { |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 2723 | .name = "3945BG", |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2724 | .fw_name_pre = IL3945_FW_PRE, |
| 2725 | .ucode_api_max = IL3945_UCODE_API_MAX, |
| 2726 | .ucode_api_min = IL3945_UCODE_API_MIN, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2727 | .sku = IL_SKU_G, |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 2728 | .eeprom_ver = EEPROM_3945_EEPROM_VERSION, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2729 | .ops = &il3945_ops, |
| 2730 | .mod_params = &il3945_mod_params, |
| 2731 | .base_params = &il3945_base_params, |
| 2732 | .led_mode = IL_LED_BLINK, |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 2733 | }; |
| 2734 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2735 | static struct il_cfg il3945_abg_cfg = { |
Tomas Winkler | 82b9a12 | 2008-03-04 18:09:30 -0800 | [diff] [blame] | 2736 | .name = "3945ABG", |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 2737 | .fw_name_pre = IL3945_FW_PRE, |
| 2738 | .ucode_api_max = IL3945_UCODE_API_MAX, |
| 2739 | .ucode_api_min = IL3945_UCODE_API_MIN, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2740 | .sku = IL_SKU_A|IL_SKU_G, |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 2741 | .eeprom_ver = EEPROM_3945_EEPROM_VERSION, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2742 | .ops = &il3945_ops, |
| 2743 | .mod_params = &il3945_mod_params, |
| 2744 | .base_params = &il3945_base_params, |
| 2745 | .led_mode = IL_LED_BLINK, |
Tomas Winkler | 82b9a12 | 2008-03-04 18:09:30 -0800 | [diff] [blame] | 2746 | }; |
| 2747 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2748 | DEFINE_PCI_DEVICE_TABLE(il3945_hw_card_ids) = { |
| 2749 | {IL_PCI_DEVICE(0x4222, 0x1005, il3945_bg_cfg)}, |
| 2750 | {IL_PCI_DEVICE(0x4222, 0x1034, il3945_bg_cfg)}, |
| 2751 | {IL_PCI_DEVICE(0x4222, 0x1044, il3945_bg_cfg)}, |
| 2752 | {IL_PCI_DEVICE(0x4227, 0x1014, il3945_bg_cfg)}, |
| 2753 | {IL_PCI_DEVICE(0x4222, PCI_ANY_ID, il3945_abg_cfg)}, |
| 2754 | {IL_PCI_DEVICE(0x4227, PCI_ANY_ID, il3945_abg_cfg)}, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2755 | {0} |
| 2756 | }; |
| 2757 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2758 | MODULE_DEVICE_TABLE(pci, il3945_hw_card_ids); |