1 /****************************************************************************** 2 * 3 * GPL LICENSE SUMMARY 4 * 5 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. 6 * Copyright(c) 2015 Intel Deutschland GmbH 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of version 2 of the GNU General Public License as 10 * published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * The full GNU General Public License is included in this distribution 18 * in the file called COPYING. 19 * 20 * Contact Information: 21 * Intel Linux Wireless <linuxwifi@intel.com> 22 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 23 * 24 *****************************************************************************/ 25 26 #include <linux/kernel.h> 27 28 #include "iwl-io.h" 29 #include "iwl-agn-hw.h" 30 #include "iwl-trans.h" 31 #include "iwl-fh.h" 32 #include "iwl-op-mode.h" 33 34 #include "dev.h" 35 #include "agn.h" 36 #include "calib.h" 37 38 /****************************************************************************** 39 * 40 * uCode download functions 41 * 42 ******************************************************************************/ 43 44 /* 45 * Calibration 46 */ 47 static int iwl_set_Xtal_calib(struct iwl_priv *priv) 48 { 49 struct iwl_calib_xtal_freq_cmd cmd; 50 __le16 *xtal_calib = priv->nvm_data->xtal_calib; 51 52 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD); 53 cmd.cap_pin1 = le16_to_cpu(xtal_calib[0]); 54 cmd.cap_pin2 = le16_to_cpu(xtal_calib[1]); 55 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd)); 56 } 57 58 static int iwl_set_temperature_offset_calib(struct iwl_priv *priv) 59 { 60 struct iwl_calib_temperature_offset_cmd cmd; 61 62 memset(&cmd, 0, sizeof(cmd)); 63 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD); 64 cmd.radio_sensor_offset = priv->nvm_data->raw_temperature; 65 if (!(cmd.radio_sensor_offset)) 66 cmd.radio_sensor_offset = DEFAULT_RADIO_SENSOR_OFFSET; 67 68 IWL_DEBUG_CALIB(priv, "Radio sensor offset: %d\n", 69 le16_to_cpu(cmd.radio_sensor_offset)); 70 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd)); 71 } 72 73 static int iwl_set_temperature_offset_calib_v2(struct iwl_priv *priv) 74 { 75 struct iwl_calib_temperature_offset_v2_cmd cmd; 76 77 memset(&cmd, 0, sizeof(cmd)); 78 iwl_set_calib_hdr(&cmd.hdr, IWL_PHY_CALIBRATE_TEMP_OFFSET_CMD); 79 cmd.radio_sensor_offset_high = priv->nvm_data->kelvin_temperature; 80 cmd.radio_sensor_offset_low = priv->nvm_data->raw_temperature; 81 if (!cmd.radio_sensor_offset_low) { 82 IWL_DEBUG_CALIB(priv, "no info in EEPROM, use default\n"); 83 cmd.radio_sensor_offset_low = DEFAULT_RADIO_SENSOR_OFFSET; 84 cmd.radio_sensor_offset_high = DEFAULT_RADIO_SENSOR_OFFSET; 85 } 86 cmd.burntVoltageRef = priv->nvm_data->calib_voltage; 87 88 IWL_DEBUG_CALIB(priv, "Radio sensor offset high: %d\n", 89 le16_to_cpu(cmd.radio_sensor_offset_high)); 90 IWL_DEBUG_CALIB(priv, "Radio sensor offset low: %d\n", 91 le16_to_cpu(cmd.radio_sensor_offset_low)); 92 IWL_DEBUG_CALIB(priv, "Voltage Ref: %d\n", 93 le16_to_cpu(cmd.burntVoltageRef)); 94 95 return iwl_calib_set(priv, (void *)&cmd, sizeof(cmd)); 96 } 97 98 static int iwl_send_calib_cfg(struct iwl_priv *priv) 99 { 100 struct iwl_calib_cfg_cmd calib_cfg_cmd; 101 struct iwl_host_cmd cmd = { 102 .id = CALIBRATION_CFG_CMD, 103 .len = { sizeof(struct iwl_calib_cfg_cmd), }, 104 .data = { &calib_cfg_cmd, }, 105 }; 106 107 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); 108 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; 109 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL; 110 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL; 111 calib_cfg_cmd.ucd_calib_cfg.flags = 112 IWL_CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_MSK; 113 114 return iwl_dvm_send_cmd(priv, &cmd); 115 } 116 117 int iwl_init_alive_start(struct iwl_priv *priv) 118 { 119 int ret; 120 121 if (priv->lib->bt_params && 122 priv->lib->bt_params->advanced_bt_coexist) { 123 /* 124 * Tell uCode we are ready to perform calibration 125 * need to perform this before any calibration 126 * no need to close the envlope since we are going 127 * to load the runtime uCode later. 128 */ 129 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, 130 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); 131 if (ret) 132 return ret; 133 134 } 135 136 ret = iwl_send_calib_cfg(priv); 137 if (ret) 138 return ret; 139 140 /** 141 * temperature offset calibration is only needed for runtime ucode, 142 * so prepare the value now. 143 */ 144 if (priv->lib->need_temp_offset_calib) { 145 if (priv->lib->temp_offset_v2) 146 return iwl_set_temperature_offset_calib_v2(priv); 147 else 148 return iwl_set_temperature_offset_calib(priv); 149 } 150 151 return 0; 152 } 153 154 static int iwl_send_wimax_coex(struct iwl_priv *priv) 155 { 156 struct iwl_wimax_coex_cmd coex_cmd; 157 158 /* coexistence is disabled */ 159 memset(&coex_cmd, 0, sizeof(coex_cmd)); 160 161 return iwl_dvm_send_cmd_pdu(priv, 162 COEX_PRIORITY_TABLE_CMD, 0, 163 sizeof(coex_cmd), &coex_cmd); 164 } 165 166 static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { 167 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 168 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 169 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 170 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 171 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 172 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 173 ((BT_COEX_PRIO_TBL_PRIO_LOW << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 174 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 175 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 176 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 177 ((BT_COEX_PRIO_TBL_PRIO_HIGH << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 178 (1 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 179 ((BT_COEX_PRIO_TBL_PRIO_BYPASS << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 180 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 181 ((BT_COEX_PRIO_TBL_PRIO_COEX_OFF << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 182 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 183 ((BT_COEX_PRIO_TBL_PRIO_COEX_ON << IWL_BT_COEX_PRIO_TBL_PRIO_POS) | 184 (0 << IWL_BT_COEX_PRIO_TBL_SHARED_ANTENNA_POS)), 185 0, 0, 0, 0, 0, 0, 0 186 }; 187 188 void iwl_send_prio_tbl(struct iwl_priv *priv) 189 { 190 struct iwl_bt_coex_prio_table_cmd prio_tbl_cmd; 191 192 memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl, 193 sizeof(iwl_bt_prio_tbl)); 194 if (iwl_dvm_send_cmd_pdu(priv, 195 REPLY_BT_COEX_PRIO_TABLE, 0, 196 sizeof(prio_tbl_cmd), &prio_tbl_cmd)) 197 IWL_ERR(priv, "failed to send BT prio tbl command\n"); 198 } 199 200 int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type) 201 { 202 struct iwl_bt_coex_prot_env_cmd env_cmd; 203 int ret; 204 205 env_cmd.action = action; 206 env_cmd.type = type; 207 ret = iwl_dvm_send_cmd_pdu(priv, 208 REPLY_BT_COEX_PROT_ENV, 0, 209 sizeof(env_cmd), &env_cmd); 210 if (ret) 211 IWL_ERR(priv, "failed to send BT env command\n"); 212 return ret; 213 } 214 215 static const u8 iwlagn_default_queue_to_tx_fifo[] = { 216 IWL_TX_FIFO_VO, 217 IWL_TX_FIFO_VI, 218 IWL_TX_FIFO_BE, 219 IWL_TX_FIFO_BK, 220 }; 221 222 static const u8 iwlagn_ipan_queue_to_tx_fifo[] = { 223 IWL_TX_FIFO_VO, 224 IWL_TX_FIFO_VI, 225 IWL_TX_FIFO_BE, 226 IWL_TX_FIFO_BK, 227 IWL_TX_FIFO_BK_IPAN, 228 IWL_TX_FIFO_BE_IPAN, 229 IWL_TX_FIFO_VI_IPAN, 230 IWL_TX_FIFO_VO_IPAN, 231 IWL_TX_FIFO_BE_IPAN, 232 IWL_TX_FIFO_UNUSED, 233 IWL_TX_FIFO_AUX, 234 }; 235 236 static int iwl_alive_notify(struct iwl_priv *priv) 237 { 238 const u8 *queue_to_txf; 239 u8 n_queues; 240 int ret; 241 int i; 242 243 iwl_trans_fw_alive(priv->trans, 0); 244 245 if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN && 246 priv->nvm_data->sku_cap_ipan_enable) { 247 n_queues = ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo); 248 queue_to_txf = iwlagn_ipan_queue_to_tx_fifo; 249 } else { 250 n_queues = ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo); 251 queue_to_txf = iwlagn_default_queue_to_tx_fifo; 252 } 253 254 for (i = 0; i < n_queues; i++) 255 if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED) 256 iwl_trans_ac_txq_enable(priv->trans, i, 257 queue_to_txf[i], 0); 258 259 priv->passive_no_rx = false; 260 priv->transport_queue_stop = 0; 261 262 ret = iwl_send_wimax_coex(priv); 263 if (ret) 264 return ret; 265 266 if (!priv->lib->no_xtal_calib) { 267 ret = iwl_set_Xtal_calib(priv); 268 if (ret) 269 return ret; 270 } 271 272 return iwl_send_calib_results(priv); 273 } 274 275 struct iwl_alive_data { 276 bool valid; 277 u8 subtype; 278 }; 279 280 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait, 281 struct iwl_rx_packet *pkt, void *data) 282 { 283 struct iwl_priv *priv = 284 container_of(notif_wait, struct iwl_priv, notif_wait); 285 struct iwl_alive_data *alive_data = data; 286 struct iwl_alive_resp *palive; 287 288 palive = (void *)pkt->data; 289 290 IWL_DEBUG_FW(priv, "Alive ucode status 0x%08X revision " 291 "0x%01X 0x%01X\n", 292 palive->is_valid, palive->ver_type, 293 palive->ver_subtype); 294 295 priv->device_pointers.error_event_table = 296 le32_to_cpu(palive->error_event_table_ptr); 297 priv->device_pointers.log_event_table = 298 le32_to_cpu(palive->log_event_table_ptr); 299 300 alive_data->subtype = palive->ver_subtype; 301 alive_data->valid = palive->is_valid == UCODE_VALID_OK; 302 303 return true; 304 } 305 306 #define UCODE_ALIVE_TIMEOUT HZ 307 #define UCODE_CALIB_TIMEOUT (2*HZ) 308 309 int iwl_load_ucode_wait_alive(struct iwl_priv *priv, 310 enum iwl_ucode_type ucode_type) 311 { 312 struct iwl_notification_wait alive_wait; 313 struct iwl_alive_data alive_data; 314 const struct fw_img *fw; 315 int ret; 316 enum iwl_ucode_type old_type; 317 static const u16 alive_cmd[] = { REPLY_ALIVE }; 318 319 fw = iwl_get_ucode_image(priv->fw, ucode_type); 320 if (WARN_ON(!fw)) 321 return -EINVAL; 322 323 old_type = priv->cur_ucode; 324 priv->cur_ucode = ucode_type; 325 priv->ucode_loaded = false; 326 327 iwl_init_notification_wait(&priv->notif_wait, &alive_wait, 328 alive_cmd, ARRAY_SIZE(alive_cmd), 329 iwl_alive_fn, &alive_data); 330 331 ret = iwl_trans_start_fw(priv->trans, fw, false); 332 if (ret) { 333 priv->cur_ucode = old_type; 334 iwl_remove_notification(&priv->notif_wait, &alive_wait); 335 return ret; 336 } 337 338 /* 339 * Some things may run in the background now, but we 340 * just wait for the ALIVE notification here. 341 */ 342 ret = iwl_wait_notification(&priv->notif_wait, &alive_wait, 343 UCODE_ALIVE_TIMEOUT); 344 if (ret) { 345 priv->cur_ucode = old_type; 346 return ret; 347 } 348 349 if (!alive_data.valid) { 350 IWL_ERR(priv, "Loaded ucode is not valid!\n"); 351 priv->cur_ucode = old_type; 352 return -EIO; 353 } 354 355 priv->ucode_loaded = true; 356 357 if (ucode_type != IWL_UCODE_WOWLAN) { 358 /* delay a bit to give rfkill time to run */ 359 msleep(5); 360 } 361 362 ret = iwl_alive_notify(priv); 363 if (ret) { 364 IWL_WARN(priv, 365 "Could not complete ALIVE transition: %d\n", ret); 366 priv->cur_ucode = old_type; 367 return ret; 368 } 369 370 return 0; 371 } 372 373 static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait, 374 struct iwl_rx_packet *pkt, void *data) 375 { 376 struct iwl_priv *priv = data; 377 struct iwl_calib_hdr *hdr; 378 379 if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) { 380 WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION); 381 return true; 382 } 383 384 hdr = (struct iwl_calib_hdr *)pkt->data; 385 386 if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt))) 387 IWL_ERR(priv, "Failed to record calibration data %d\n", 388 hdr->op_code); 389 390 return false; 391 } 392 393 int iwl_run_init_ucode(struct iwl_priv *priv) 394 { 395 struct iwl_notification_wait calib_wait; 396 static const u16 calib_complete[] = { 397 CALIBRATION_RES_NOTIFICATION, 398 CALIBRATION_COMPLETE_NOTIFICATION 399 }; 400 int ret; 401 402 lockdep_assert_held(&priv->mutex); 403 404 /* No init ucode required? Curious, but maybe ok */ 405 if (!priv->fw->img[IWL_UCODE_INIT].num_sec) 406 return 0; 407 408 iwl_init_notification_wait(&priv->notif_wait, &calib_wait, 409 calib_complete, ARRAY_SIZE(calib_complete), 410 iwlagn_wait_calib, priv); 411 412 /* Will also start the device */ 413 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT); 414 if (ret) 415 goto error; 416 417 ret = iwl_init_alive_start(priv); 418 if (ret) 419 goto error; 420 421 /* 422 * Some things may run in the background now, but we 423 * just wait for the calibration complete notification. 424 */ 425 ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 426 UCODE_CALIB_TIMEOUT); 427 428 goto out; 429 430 error: 431 iwl_remove_notification(&priv->notif_wait, &calib_wait); 432 out: 433 /* Whatever happened, stop the device */ 434 iwl_trans_stop_device(priv->trans); 435 priv->ucode_loaded = false; 436 437 return ret; 438 } 439