iwl-5000.c revision 474086396276a01190974797a69a95fb14ae7cc9
1/****************************************************************************** 2 * 3 * Copyright(c) 2007-2008 Intel Corporation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * The full GNU General Public License is included in this distribution in the 19 * file called LICENSE. 20 * 21 * Contact Information: 22 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 23 * 24 *****************************************************************************/ 25 26#include <linux/kernel.h> 27#include <linux/module.h> 28#include <linux/version.h> 29#include <linux/init.h> 30#include <linux/pci.h> 31#include <linux/dma-mapping.h> 32#include <linux/delay.h> 33#include <linux/skbuff.h> 34#include <linux/netdevice.h> 35#include <linux/wireless.h> 36#include <net/mac80211.h> 37#include <linux/etherdevice.h> 38#include <asm/unaligned.h> 39 40#include "iwl-eeprom.h" 41#include "iwl-dev.h" 42#include "iwl-core.h" 43#include "iwl-io.h" 44#include "iwl-sta.h" 45#include "iwl-helpers.h" 46#include "iwl-5000-hw.h" 47 48#define IWL5000_UCODE_API "-1" 49 50static const u16 iwl5000_default_queue_to_tx_fifo[] = { 51 IWL_TX_FIFO_AC3, 52 IWL_TX_FIFO_AC2, 53 IWL_TX_FIFO_AC1, 54 IWL_TX_FIFO_AC0, 55 IWL50_CMD_FIFO_NUM, 56 IWL_TX_FIFO_HCCA_1, 57 IWL_TX_FIFO_HCCA_2 58}; 59 60/* FIXME: same implementation as 4965 */ 61static int iwl5000_apm_stop_master(struct iwl_priv *priv) 62{ 63 int ret = 0; 64 unsigned long flags; 65 66 spin_lock_irqsave(&priv->lock, flags); 67 68 /* set stop master bit */ 69 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); 70 71 ret = iwl_poll_bit(priv, CSR_RESET, 72 CSR_RESET_REG_FLAG_MASTER_DISABLED, 73 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); 74 if (ret < 0) 75 goto out; 76 77out: 78 spin_unlock_irqrestore(&priv->lock, flags); 79 IWL_DEBUG_INFO("stop master\n"); 80 81 return ret; 82} 83 84 85static int iwl5000_apm_init(struct iwl_priv *priv) 86{ 87 int ret = 0; 88 89 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, 90 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); 91 92 /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */ 93 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, 94 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); 95 96 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL); 97 98 /* set "initialization complete" bit to move adapter 99 * D0U* --> D0A* state */ 100 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); 101 102 /* wait for clock stabilization */ 103 ret = iwl_poll_bit(priv, CSR_GP_CNTRL, 104 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 105 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); 106 if (ret < 0) { 107 IWL_DEBUG_INFO("Failed to init the card\n"); 108 return ret; 109 } 110 111 ret = iwl_grab_nic_access(priv); 112 if (ret) 113 return ret; 114 115 /* enable DMA */ 116 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); 117 118 udelay(20); 119 120 /* disable L1-Active */ 121 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, 122 APMG_PCIDEV_STT_VAL_L1_ACT_DIS); 123 124 iwl_release_nic_access(priv); 125 126 return ret; 127} 128 129/* FIXME: this is indentical to 4965 */ 130static void iwl5000_apm_stop(struct iwl_priv *priv) 131{ 132 unsigned long flags; 133 134 iwl5000_apm_stop_master(priv); 135 136 spin_lock_irqsave(&priv->lock, flags); 137 138 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); 139 140 udelay(10); 141 142 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); 143 144 spin_unlock_irqrestore(&priv->lock, flags); 145} 146 147 148static int iwl5000_apm_reset(struct iwl_priv *priv) 149{ 150 int ret = 0; 151 unsigned long flags; 152 153 iwl5000_apm_stop_master(priv); 154 155 spin_lock_irqsave(&priv->lock, flags); 156 157 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); 158 159 udelay(10); 160 161 162 /* FIXME: put here L1A -L0S w/a */ 163 164 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL); 165 166 /* set "initialization complete" bit to move adapter 167 * D0U* --> D0A* state */ 168 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); 169 170 /* wait for clock stabilization */ 171 ret = iwl_poll_bit(priv, CSR_GP_CNTRL, 172 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 173 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); 174 if (ret < 0) { 175 IWL_DEBUG_INFO("Failed to init the card\n"); 176 goto out; 177 } 178 179 ret = iwl_grab_nic_access(priv); 180 if (ret) 181 goto out; 182 183 /* enable DMA */ 184 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); 185 186 udelay(20); 187 188 /* disable L1-Active */ 189 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, 190 APMG_PCIDEV_STT_VAL_L1_ACT_DIS); 191 192 iwl_release_nic_access(priv); 193 194out: 195 spin_unlock_irqrestore(&priv->lock, flags); 196 197 return ret; 198} 199 200 201static void iwl5000_nic_config(struct iwl_priv *priv) 202{ 203 unsigned long flags; 204 u16 radio_cfg; 205 u8 val_link; 206 207 spin_lock_irqsave(&priv->lock, flags); 208 209 pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link); 210 211 /* L1 is enabled by BIOS */ 212 if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN) 213 /* diable L0S disabled L1A enabled */ 214 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); 215 else 216 /* L0S enabled L1A disabled */ 217 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED); 218 219 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG); 220 221 /* write radio config values to register */ 222 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_5000_RF_CFG_TYPE_MAX) 223 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, 224 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) | 225 EEPROM_RF_CFG_STEP_MSK(radio_cfg) | 226 EEPROM_RF_CFG_DASH_MSK(radio_cfg)); 227 228 /* set CSR_HW_CONFIG_REG for uCode use */ 229 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, 230 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 231 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI); 232 233 spin_unlock_irqrestore(&priv->lock, flags); 234} 235 236 237 238/* 239 * EEPROM 240 */ 241static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address) 242{ 243 u16 offset = 0; 244 245 if ((address & INDIRECT_ADDRESS) == 0) 246 return address; 247 248 switch (address & INDIRECT_TYPE_MSK) { 249 case INDIRECT_HOST: 250 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST); 251 break; 252 case INDIRECT_GENERAL: 253 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL); 254 break; 255 case INDIRECT_REGULATORY: 256 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY); 257 break; 258 case INDIRECT_CALIBRATION: 259 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION); 260 break; 261 case INDIRECT_PROCESS_ADJST: 262 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST); 263 break; 264 case INDIRECT_OTHERS: 265 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS); 266 break; 267 default: 268 IWL_ERROR("illegal indirect type: 0x%X\n", 269 address & INDIRECT_TYPE_MSK); 270 break; 271 } 272 273 /* translate the offset from words to byte */ 274 return (address & ADDRESS_MSK) + (offset << 1); 275} 276 277static int iwl5000_eeprom_check_version(struct iwl_priv *priv) 278{ 279 u16 eeprom_ver; 280 struct iwl_eeprom_calib_hdr { 281 u8 version; 282 u8 pa_type; 283 u16 voltage; 284 } *hdr; 285 286 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); 287 288 hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv, 289 EEPROM_5000_CALIB_ALL); 290 291 if (eeprom_ver < EEPROM_5000_EEPROM_VERSION || 292 hdr->version < EEPROM_5000_TX_POWER_VERSION) 293 goto err; 294 295 return 0; 296err: 297 IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", 298 eeprom_ver, EEPROM_5000_EEPROM_VERSION, 299 hdr->version, EEPROM_5000_TX_POWER_VERSION); 300 return -EINVAL; 301 302} 303 304static void iwl5000_gain_computation(struct iwl_priv *priv, 305 u32 average_noise[NUM_RX_CHAINS], 306 u16 min_average_noise_antenna_i, 307 u32 min_average_noise) 308{ 309 int i; 310 s32 delta_g; 311 struct iwl_chain_noise_data *data = &priv->chain_noise_data; 312 313 /* Find Gain Code for the antennas B and C */ 314 for (i = 1; i < NUM_RX_CHAINS; i++) { 315 if ((data->disconn_array[i])) { 316 data->delta_gain_code[i] = 0; 317 continue; 318 } 319 delta_g = (1000 * ((s32)average_noise[0] - 320 (s32)average_noise[i])) / 1500; 321 /* bound gain by 2 bits value max, 3rd bit is sign */ 322 data->delta_gain_code[i] = 323 min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE); 324 325 if (delta_g < 0) 326 /* set negative sign */ 327 data->delta_gain_code[i] |= (1 << 2); 328 } 329 330 IWL_DEBUG_CALIB("Delta gains: ANT_B = %d ANT_C = %d\n", 331 data->delta_gain_code[1], data->delta_gain_code[2]); 332 333 if (!data->radio_write) { 334 struct iwl5000_calibration_chain_noise_gain_cmd cmd; 335 memset(&cmd, 0, sizeof(cmd)); 336 337 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD; 338 cmd.delta_gain_1 = data->delta_gain_code[1]; 339 cmd.delta_gain_2 = data->delta_gain_code[2]; 340 iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD, 341 sizeof(cmd), &cmd, NULL); 342 343 data->radio_write = 1; 344 data->state = IWL_CHAIN_NOISE_CALIBRATED; 345 } 346 347 data->chain_noise_a = 0; 348 data->chain_noise_b = 0; 349 data->chain_noise_c = 0; 350 data->chain_signal_a = 0; 351 data->chain_signal_b = 0; 352 data->chain_signal_c = 0; 353 data->beacon_count = 0; 354} 355 356static void iwl5000_chain_noise_reset(struct iwl_priv *priv) 357{ 358 struct iwl_chain_noise_data *data = &priv->chain_noise_data; 359 360 if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) { 361 struct iwl5000_calibration_chain_noise_reset_cmd cmd; 362 363 memset(&cmd, 0, sizeof(cmd)); 364 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD; 365 if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, 366 sizeof(cmd), &cmd)) 367 IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n"); 368 data->state = IWL_CHAIN_NOISE_ACCUMULATE; 369 IWL_DEBUG_CALIB("Run chain_noise_calibrate\n"); 370 } 371} 372 373static struct iwl_sensitivity_ranges iwl5000_sensitivity = { 374 .min_nrg_cck = 95, 375 .max_nrg_cck = 0, 376 .auto_corr_min_ofdm = 90, 377 .auto_corr_min_ofdm_mrc = 170, 378 .auto_corr_min_ofdm_x1 = 120, 379 .auto_corr_min_ofdm_mrc_x1 = 240, 380 381 .auto_corr_max_ofdm = 120, 382 .auto_corr_max_ofdm_mrc = 210, 383 .auto_corr_max_ofdm_x1 = 155, 384 .auto_corr_max_ofdm_mrc_x1 = 290, 385 386 .auto_corr_min_cck = 125, 387 .auto_corr_max_cck = 200, 388 .auto_corr_min_cck_mrc = 170, 389 .auto_corr_max_cck_mrc = 400, 390 .nrg_th_cck = 95, 391 .nrg_th_ofdm = 95, 392}; 393 394static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv, 395 size_t offset) 396{ 397 u32 address = eeprom_indirect_address(priv, offset); 398 BUG_ON(address >= priv->cfg->eeprom_size); 399 return &priv->eeprom[address]; 400} 401 402/* 403 * Calibration 404 */ 405static int iwl5000_send_Xtal_calib(struct iwl_priv *priv) 406{ 407 u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL); 408 409 struct iwl5000_calibration cal_cmd = { 410 .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD, 411 .data = { 412 (u8)xtal_calib[0], 413 (u8)xtal_calib[1], 414 } 415 }; 416 417 return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, 418 sizeof(cal_cmd), &cal_cmd); 419} 420 421static int iwl5000_send_calib_results(struct iwl_priv *priv) 422{ 423 int ret = 0; 424 425 struct iwl_host_cmd hcmd = { 426 .id = REPLY_PHY_CALIBRATION_CMD, 427 .meta.flags = CMD_SIZE_HUGE, 428 }; 429 430 if (priv->calib_results.lo_res) { 431 hcmd.len = priv->calib_results.lo_res_len; 432 hcmd.data = priv->calib_results.lo_res; 433 ret = iwl_send_cmd_sync(priv, &hcmd); 434 435 if (ret) 436 goto err; 437 } 438 439 if (priv->calib_results.tx_iq_res) { 440 hcmd.len = priv->calib_results.tx_iq_res_len; 441 hcmd.data = priv->calib_results.tx_iq_res; 442 ret = iwl_send_cmd_sync(priv, &hcmd); 443 444 if (ret) 445 goto err; 446 } 447 448 if (priv->calib_results.tx_iq_perd_res) { 449 hcmd.len = priv->calib_results.tx_iq_perd_res_len; 450 hcmd.data = priv->calib_results.tx_iq_perd_res; 451 ret = iwl_send_cmd_sync(priv, &hcmd); 452 453 if (ret) 454 goto err; 455 } 456 457 return 0; 458err: 459 IWL_ERROR("Error %d\n", ret); 460 return ret; 461} 462 463static int iwl5000_send_calib_cfg(struct iwl_priv *priv) 464{ 465 struct iwl5000_calib_cfg_cmd calib_cfg_cmd; 466 struct iwl_host_cmd cmd = { 467 .id = CALIBRATION_CFG_CMD, 468 .len = sizeof(struct iwl5000_calib_cfg_cmd), 469 .data = &calib_cfg_cmd, 470 }; 471 472 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); 473 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; 474 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL; 475 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL; 476 calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL; 477 478 return iwl_send_cmd(priv, &cmd); 479} 480 481static void iwl5000_rx_calib_result(struct iwl_priv *priv, 482 struct iwl_rx_mem_buffer *rxb) 483{ 484 struct iwl_rx_packet *pkt = (void *)rxb->skb->data; 485 struct iwl5000_calib_hdr *hdr = (struct iwl5000_calib_hdr *)pkt->u.raw; 486 int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK; 487 488 iwl_free_calib_results(priv); 489 490 /* reduce the size of the length field itself */ 491 len -= 4; 492 493 switch (hdr->op_code) { 494 case IWL5000_PHY_CALIBRATE_LO_CMD: 495 priv->calib_results.lo_res = kzalloc(len, GFP_ATOMIC); 496 priv->calib_results.lo_res_len = len; 497 memcpy(priv->calib_results.lo_res, pkt->u.raw, len); 498 break; 499 case IWL5000_PHY_CALIBRATE_TX_IQ_CMD: 500 priv->calib_results.tx_iq_res = kzalloc(len, GFP_ATOMIC); 501 priv->calib_results.tx_iq_res_len = len; 502 memcpy(priv->calib_results.tx_iq_res, pkt->u.raw, len); 503 break; 504 case IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD: 505 priv->calib_results.tx_iq_perd_res = kzalloc(len, GFP_ATOMIC); 506 priv->calib_results.tx_iq_perd_res_len = len; 507 memcpy(priv->calib_results.tx_iq_perd_res, pkt->u.raw, len); 508 break; 509 default: 510 IWL_ERROR("Unknown calibration notification %d\n", 511 hdr->op_code); 512 return; 513 } 514} 515 516static void iwl5000_rx_calib_complete(struct iwl_priv *priv, 517 struct iwl_rx_mem_buffer *rxb) 518{ 519 IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n"); 520 queue_work(priv->workqueue, &priv->restart); 521} 522 523/* 524 * ucode 525 */ 526static int iwl5000_load_section(struct iwl_priv *priv, 527 struct fw_desc *image, 528 u32 dst_addr) 529{ 530 int ret = 0; 531 unsigned long flags; 532 533 dma_addr_t phy_addr = image->p_addr; 534 u32 byte_cnt = image->len; 535 536 spin_lock_irqsave(&priv->lock, flags); 537 ret = iwl_grab_nic_access(priv); 538 if (ret) { 539 spin_unlock_irqrestore(&priv->lock, flags); 540 return ret; 541 } 542 543 iwl_write_direct32(priv, 544 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL), 545 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE); 546 547 iwl_write_direct32(priv, 548 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr); 549 550 iwl_write_direct32(priv, 551 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL), 552 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK); 553 554 /* FIME: write the MSB of the phy_addr in CTRL1 555 * iwl_write_direct32(priv, 556 IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL), 557 ((phy_addr & MSB_MSK) 558 << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count); 559 */ 560 iwl_write_direct32(priv, 561 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt); 562 iwl_write_direct32(priv, 563 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL), 564 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM | 565 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX | 566 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID); 567 568 iwl_write_direct32(priv, 569 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL), 570 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE | 571 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL | 572 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD); 573 574 iwl_release_nic_access(priv); 575 spin_unlock_irqrestore(&priv->lock, flags); 576 return 0; 577} 578 579static int iwl5000_load_given_ucode(struct iwl_priv *priv, 580 struct fw_desc *inst_image, 581 struct fw_desc *data_image) 582{ 583 int ret = 0; 584 585 ret = iwl5000_load_section( 586 priv, inst_image, RTC_INST_LOWER_BOUND); 587 if (ret) 588 return ret; 589 590 IWL_DEBUG_INFO("INST uCode section being loaded...\n"); 591 ret = wait_event_interruptible_timeout(priv->wait_command_queue, 592 priv->ucode_write_complete, 5 * HZ); 593 if (ret == -ERESTARTSYS) { 594 IWL_ERROR("Could not load the INST uCode section due " 595 "to interrupt\n"); 596 return ret; 597 } 598 if (!ret) { 599 IWL_ERROR("Could not load the INST uCode section\n"); 600 return -ETIMEDOUT; 601 } 602 603 priv->ucode_write_complete = 0; 604 605 ret = iwl5000_load_section( 606 priv, data_image, RTC_DATA_LOWER_BOUND); 607 if (ret) 608 return ret; 609 610 IWL_DEBUG_INFO("DATA uCode section being loaded...\n"); 611 612 ret = wait_event_interruptible_timeout(priv->wait_command_queue, 613 priv->ucode_write_complete, 5 * HZ); 614 if (ret == -ERESTARTSYS) { 615 IWL_ERROR("Could not load the INST uCode section due " 616 "to interrupt\n"); 617 return ret; 618 } else if (!ret) { 619 IWL_ERROR("Could not load the DATA uCode section\n"); 620 return -ETIMEDOUT; 621 } else 622 ret = 0; 623 624 priv->ucode_write_complete = 0; 625 626 return ret; 627} 628 629static int iwl5000_load_ucode(struct iwl_priv *priv) 630{ 631 int ret = 0; 632 633 /* check whether init ucode should be loaded, or rather runtime ucode */ 634 if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) { 635 IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n"); 636 ret = iwl5000_load_given_ucode(priv, 637 &priv->ucode_init, &priv->ucode_init_data); 638 if (!ret) { 639 IWL_DEBUG_INFO("Init ucode load complete.\n"); 640 priv->ucode_type = UCODE_INIT; 641 } 642 } else { 643 IWL_DEBUG_INFO("Init ucode not found, or already loaded. " 644 "Loading runtime ucode...\n"); 645 ret = iwl5000_load_given_ucode(priv, 646 &priv->ucode_code, &priv->ucode_data); 647 if (!ret) { 648 IWL_DEBUG_INFO("Runtime ucode load complete.\n"); 649 priv->ucode_type = UCODE_RT; 650 } 651 } 652 653 return ret; 654} 655 656static void iwl5000_init_alive_start(struct iwl_priv *priv) 657{ 658 int ret = 0; 659 660 /* Check alive response for "valid" sign from uCode */ 661 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { 662 /* We had an error bringing up the hardware, so take it 663 * all the way back down so we can try again */ 664 IWL_DEBUG_INFO("Initialize Alive failed.\n"); 665 goto restart; 666 } 667 668 /* initialize uCode was loaded... verify inst image. 669 * This is a paranoid check, because we would not have gotten the 670 * "initialize" alive if code weren't properly loaded. */ 671 if (iwl_verify_ucode(priv)) { 672 /* Runtime instruction load was bad; 673 * take it all the way back down so we can try again */ 674 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n"); 675 goto restart; 676 } 677 678 iwl_clear_stations_table(priv); 679 ret = priv->cfg->ops->lib->alive_notify(priv); 680 if (ret) { 681 IWL_WARNING("Could not complete ALIVE transition: %d\n", ret); 682 goto restart; 683 } 684 685 iwl5000_send_calib_cfg(priv); 686 return; 687 688restart: 689 /* real restart (first load init_ucode) */ 690 queue_work(priv->workqueue, &priv->restart); 691} 692 693static void iwl5000_set_wr_ptrs(struct iwl_priv *priv, 694 int txq_id, u32 index) 695{ 696 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 697 (index & 0xff) | (txq_id << 8)); 698 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index); 699} 700 701static void iwl5000_tx_queue_set_status(struct iwl_priv *priv, 702 struct iwl_tx_queue *txq, 703 int tx_fifo_id, int scd_retry) 704{ 705 int txq_id = txq->q.id; 706 int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0; 707 708 iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id), 709 (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) | 710 (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) | 711 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) | 712 IWL50_SCD_QUEUE_STTS_REG_MSK); 713 714 txq->sched_retry = scd_retry; 715 716 IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n", 717 active ? "Activate" : "Deactivate", 718 scd_retry ? "BA" : "AC", txq_id, tx_fifo_id); 719} 720 721static int iwl5000_send_wimax_coex(struct iwl_priv *priv) 722{ 723 struct iwl_wimax_coex_cmd coex_cmd; 724 725 memset(&coex_cmd, 0, sizeof(coex_cmd)); 726 727 return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD, 728 sizeof(coex_cmd), &coex_cmd); 729} 730 731static int iwl5000_alive_notify(struct iwl_priv *priv) 732{ 733 u32 a; 734 int i = 0; 735 unsigned long flags; 736 int ret; 737 738 spin_lock_irqsave(&priv->lock, flags); 739 740 ret = iwl_grab_nic_access(priv); 741 if (ret) { 742 spin_unlock_irqrestore(&priv->lock, flags); 743 return ret; 744 } 745 746 priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR); 747 a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET; 748 for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET; 749 a += 4) 750 iwl_write_targ_mem(priv, a, 0); 751 for (; a < priv->scd_base_addr + IWL50_SCD_TRANSLATE_TBL_OFFSET; 752 a += 4) 753 iwl_write_targ_mem(priv, a, 0); 754 for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4) 755 iwl_write_targ_mem(priv, a, 0); 756 757 iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR, 758 (priv->shared_phys + 759 offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10); 760 iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, 761 IWL50_SCD_QUEUECHAIN_SEL_ALL( 762 priv->hw_params.max_txq_num)); 763 iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0); 764 765 /* initiate the queues */ 766 for (i = 0; i < priv->hw_params.max_txq_num; i++) { 767 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0); 768 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8)); 769 iwl_write_targ_mem(priv, priv->scd_base_addr + 770 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0); 771 iwl_write_targ_mem(priv, priv->scd_base_addr + 772 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) + 773 sizeof(u32), 774 ((SCD_WIN_SIZE << 775 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & 776 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | 777 ((SCD_FRAME_LIMIT << 778 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & 779 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); 780 } 781 782 iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK, 783 IWL_MASK(0, priv->hw_params.max_txq_num)); 784 785 /* Activate all Tx DMA/FIFO channels */ 786 priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7)); 787 788 iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0); 789 /* map qos queues to fifos one-to-one */ 790 for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) { 791 int ac = iwl5000_default_queue_to_tx_fifo[i]; 792 iwl_txq_ctx_activate(priv, i); 793 iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0); 794 } 795 /* TODO - need to initialize those FIFOs inside the loop above, 796 * not only mark them as active */ 797 iwl_txq_ctx_activate(priv, 4); 798 iwl_txq_ctx_activate(priv, 7); 799 iwl_txq_ctx_activate(priv, 8); 800 iwl_txq_ctx_activate(priv, 9); 801 802 iwl_release_nic_access(priv); 803 spin_unlock_irqrestore(&priv->lock, flags); 804 805 806 iwl5000_send_wimax_coex(priv); 807 808 iwl5000_send_Xtal_calib(priv); 809 810 if (priv->ucode_type == UCODE_RT) 811 iwl5000_send_calib_results(priv); 812 813 return 0; 814} 815 816static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) 817{ 818 if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) || 819 (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) { 820 IWL_ERROR("invalid queues_num, should be between %d and %d\n", 821 IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES); 822 return -EINVAL; 823 } 824 825 priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues; 826 priv->hw_params.first_ampdu_q = IWL50_FIRST_AMPDU_QUEUE; 827 priv->hw_params.max_stations = IWL5000_STATION_COUNT; 828 priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID; 829 priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE; 830 priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE; 831 priv->hw_params.max_bsm_size = 0; 832 priv->hw_params.fat_channel = BIT(IEEE80211_BAND_2GHZ) | 833 BIT(IEEE80211_BAND_5GHZ); 834 priv->hw_params.sens = &iwl5000_sensitivity; 835 836 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { 837 case CSR_HW_REV_TYPE_5100: 838 case CSR_HW_REV_TYPE_5150: 839 priv->hw_params.tx_chains_num = 1; 840 priv->hw_params.rx_chains_num = 2; 841 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */ 842 priv->hw_params.valid_tx_ant = ANT_A; 843 priv->hw_params.valid_rx_ant = ANT_AB; 844 break; 845 case CSR_HW_REV_TYPE_5300: 846 case CSR_HW_REV_TYPE_5350: 847 priv->hw_params.tx_chains_num = 3; 848 priv->hw_params.rx_chains_num = 3; 849 priv->hw_params.valid_tx_ant = ANT_ABC; 850 priv->hw_params.valid_rx_ant = ANT_ABC; 851 break; 852 } 853 854 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { 855 case CSR_HW_REV_TYPE_5100: 856 case CSR_HW_REV_TYPE_5300: 857 /* 5X00 wants in Celsius */ 858 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD; 859 break; 860 case CSR_HW_REV_TYPE_5150: 861 case CSR_HW_REV_TYPE_5350: 862 /* 5X50 wants in Kelvin */ 863 priv->hw_params.ct_kill_threshold = 864 CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD); 865 break; 866 } 867 868 return 0; 869} 870 871static int iwl5000_alloc_shared_mem(struct iwl_priv *priv) 872{ 873 priv->shared_virt = pci_alloc_consistent(priv->pci_dev, 874 sizeof(struct iwl5000_shared), 875 &priv->shared_phys); 876 if (!priv->shared_virt) 877 return -ENOMEM; 878 879 memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared)); 880 881 priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed); 882 883 return 0; 884} 885 886static void iwl5000_free_shared_mem(struct iwl_priv *priv) 887{ 888 if (priv->shared_virt) 889 pci_free_consistent(priv->pci_dev, 890 sizeof(struct iwl5000_shared), 891 priv->shared_virt, 892 priv->shared_phys); 893} 894 895static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv) 896{ 897 struct iwl5000_shared *s = priv->shared_virt; 898 return le32_to_cpu(s->rb_closed) & 0xFFF; 899} 900 901/** 902 * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array 903 */ 904static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv, 905 struct iwl_tx_queue *txq, 906 u16 byte_cnt) 907{ 908 struct iwl5000_shared *shared_data = priv->shared_virt; 909 int txq_id = txq->q.id; 910 u8 sec_ctl = 0; 911 u8 sta = 0; 912 int len; 913 914 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE; 915 916 if (txq_id != IWL_CMD_QUEUE_NUM) { 917 sta = txq->cmd[txq->q.write_ptr].cmd.tx.sta_id; 918 sec_ctl = txq->cmd[txq->q.write_ptr].cmd.tx.sec_ctl; 919 920 switch (sec_ctl & TX_CMD_SEC_MSK) { 921 case TX_CMD_SEC_CCM: 922 len += CCMP_MIC_LEN; 923 break; 924 case TX_CMD_SEC_TKIP: 925 len += TKIP_ICV_LEN; 926 break; 927 case TX_CMD_SEC_WEP: 928 len += WEP_IV_LEN + WEP_ICV_LEN; 929 break; 930 } 931 } 932 933 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. 934 tfd_offset[txq->q.write_ptr], byte_cnt, len); 935 936 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. 937 tfd_offset[txq->q.write_ptr], sta_id, sta); 938 939 if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { 940 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. 941 tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], 942 byte_cnt, len); 943 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id]. 944 tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr], 945 sta_id, sta); 946 } 947} 948 949static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, 950 struct iwl_tx_queue *txq) 951{ 952 int txq_id = txq->q.id; 953 struct iwl5000_shared *shared_data = priv->shared_virt; 954 u8 sta = 0; 955 956 if (txq_id != IWL_CMD_QUEUE_NUM) 957 sta = txq->cmd[txq->q.read_ptr].cmd.tx.sta_id; 958 959 shared_data->queues_byte_cnt_tbls[txq_id].tfd_offset[txq->q.read_ptr]. 960 val = cpu_to_le16(1 | (sta << 12)); 961 962 if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) { 963 shared_data->queues_byte_cnt_tbls[txq_id]. 964 tfd_offset[IWL50_QUEUE_SIZE + txq->q.read_ptr]. 965 val = cpu_to_le16(1 | (sta << 12)); 966 } 967} 968 969static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid, 970 u16 txq_id) 971{ 972 u32 tbl_dw_addr; 973 u32 tbl_dw; 974 u16 scd_q2ratid; 975 976 scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK; 977 978 tbl_dw_addr = priv->scd_base_addr + 979 IWL50_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id); 980 981 tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr); 982 983 if (txq_id & 0x1) 984 tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF); 985 else 986 tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000); 987 988 iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw); 989 990 return 0; 991} 992static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id) 993{ 994 /* Simply stop the queue, but don't change any configuration; 995 * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */ 996 iwl_write_prph(priv, 997 IWL50_SCD_QUEUE_STATUS_BITS(txq_id), 998 (0 << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE)| 999 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); 1000} 1001 1002static int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id, 1003 int tx_fifo, int sta_id, int tid, u16 ssn_idx) 1004{ 1005 unsigned long flags; 1006 int ret; 1007 u16 ra_tid; 1008 1009 if (IWL50_FIRST_AMPDU_QUEUE > txq_id) 1010 IWL_WARNING("queue number too small: %d, must be > %d\n", 1011 txq_id, IWL50_FIRST_AMPDU_QUEUE); 1012 1013 ra_tid = BUILD_RAxTID(sta_id, tid); 1014 1015 /* Modify device's station table to Tx this TID */ 1016 iwl_sta_modify_enable_tid_tx(priv, sta_id, tid); 1017 1018 spin_lock_irqsave(&priv->lock, flags); 1019 ret = iwl_grab_nic_access(priv); 1020 if (ret) { 1021 spin_unlock_irqrestore(&priv->lock, flags); 1022 return ret; 1023 } 1024 1025 /* Stop this Tx queue before configuring it */ 1026 iwl5000_tx_queue_stop_scheduler(priv, txq_id); 1027 1028 /* Map receiver-address / traffic-ID to this queue */ 1029 iwl5000_tx_queue_set_q2ratid(priv, ra_tid, txq_id); 1030 1031 /* Set this queue as a chain-building queue */ 1032 iwl_set_bits_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, (1<<txq_id)); 1033 1034 /* enable aggregations for the queue */ 1035 iwl_set_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1<<txq_id)); 1036 1037 /* Place first TFD at index corresponding to start sequence number. 1038 * Assumes that ssn_idx is valid (!= 0xFFF) */ 1039 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); 1040 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); 1041 iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); 1042 1043 /* Set up Tx window size and frame limit for this queue */ 1044 iwl_write_targ_mem(priv, priv->scd_base_addr + 1045 IWL50_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + 1046 sizeof(u32), 1047 ((SCD_WIN_SIZE << 1048 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) & 1049 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) | 1050 ((SCD_FRAME_LIMIT << 1051 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) & 1052 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK)); 1053 1054 iwl_set_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); 1055 1056 /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */ 1057 iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1); 1058 1059 iwl_release_nic_access(priv); 1060 spin_unlock_irqrestore(&priv->lock, flags); 1061 1062 return 0; 1063} 1064 1065static int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id, 1066 u16 ssn_idx, u8 tx_fifo) 1067{ 1068 int ret; 1069 1070 if (IWL50_FIRST_AMPDU_QUEUE > txq_id) { 1071 IWL_WARNING("queue number too small: %d, must be > %d\n", 1072 txq_id, IWL50_FIRST_AMPDU_QUEUE); 1073 return -EINVAL; 1074 } 1075 1076 ret = iwl_grab_nic_access(priv); 1077 if (ret) 1078 return ret; 1079 1080 iwl5000_tx_queue_stop_scheduler(priv, txq_id); 1081 1082 iwl_clear_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1 << txq_id)); 1083 1084 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff); 1085 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff); 1086 /* supposes that ssn_idx is valid (!= 0xFFF) */ 1087 iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx); 1088 1089 iwl_clear_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id)); 1090 iwl_txq_ctx_deactivate(priv, txq_id); 1091 iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0); 1092 1093 iwl_release_nic_access(priv); 1094 1095 return 0; 1096} 1097 1098static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) 1099{ 1100 u16 size = (u16)sizeof(struct iwl_addsta_cmd); 1101 memcpy(data, cmd, size); 1102 return size; 1103} 1104 1105 1106/* 1107 * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask 1108 * must be called under priv->lock and mac access 1109 */ 1110static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask) 1111{ 1112 iwl_write_prph(priv, IWL50_SCD_TXFACT, mask); 1113} 1114 1115 1116static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp) 1117{ 1118 return le32_to_cpup((__le32*)&tx_resp->status + 1119 tx_resp->frame_count) & MAX_SN; 1120} 1121 1122static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, 1123 struct iwl_ht_agg *agg, 1124 struct iwl5000_tx_resp *tx_resp, 1125 int txq_id, u16 start_idx) 1126{ 1127 u16 status; 1128 struct agg_tx_status *frame_status = &tx_resp->status; 1129 struct ieee80211_tx_info *info = NULL; 1130 struct ieee80211_hdr *hdr = NULL; 1131 u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); 1132 int i, sh, idx; 1133 u16 seq; 1134 1135 if (agg->wait_for_ba) 1136 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n"); 1137 1138 agg->frame_count = tx_resp->frame_count; 1139 agg->start_idx = start_idx; 1140 agg->rate_n_flags = rate_n_flags; 1141 agg->bitmap = 0; 1142 1143 /* # frames attempted by Tx command */ 1144 if (agg->frame_count == 1) { 1145 /* Only one frame was attempted; no block-ack will arrive */ 1146 status = le16_to_cpu(frame_status[0].status); 1147 idx = start_idx; 1148 1149 /* FIXME: code repetition */ 1150 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", 1151 agg->frame_count, agg->start_idx, idx); 1152 1153 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]); 1154 info->status.retry_count = tx_resp->failure_frame; 1155 info->flags &= ~IEEE80211_TX_CTL_AMPDU; 1156 info->flags |= iwl_is_tx_success(status)? 1157 IEEE80211_TX_STAT_ACK : 0; 1158 iwl_hwrate_to_tx_control(priv, rate_n_flags, info); 1159 1160 /* FIXME: code repetition end */ 1161 1162 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n", 1163 status & 0xff, tx_resp->failure_frame); 1164 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags); 1165 1166 agg->wait_for_ba = 0; 1167 } else { 1168 /* Two or more frames were attempted; expect block-ack */ 1169 u64 bitmap = 0; 1170 int start = agg->start_idx; 1171 1172 /* Construct bit-map of pending frames within Tx window */ 1173 for (i = 0; i < agg->frame_count; i++) { 1174 u16 sc; 1175 status = le16_to_cpu(frame_status[i].status); 1176 seq = le16_to_cpu(frame_status[i].sequence); 1177 idx = SEQ_TO_INDEX(seq); 1178 txq_id = SEQ_TO_QUEUE(seq); 1179 1180 if (status & (AGG_TX_STATE_FEW_BYTES_MSK | 1181 AGG_TX_STATE_ABORT_MSK)) 1182 continue; 1183 1184 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n", 1185 agg->frame_count, txq_id, idx); 1186 1187 hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx); 1188 1189 sc = le16_to_cpu(hdr->seq_ctrl); 1190 if (idx != (SEQ_TO_SN(sc) & 0xff)) { 1191 IWL_ERROR("BUG_ON idx doesn't match seq control" 1192 " idx=%d, seq_idx=%d, seq=%d\n", 1193 idx, SEQ_TO_SN(sc), 1194 hdr->seq_ctrl); 1195 return -1; 1196 } 1197 1198 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", 1199 i, idx, SEQ_TO_SN(sc)); 1200 1201 sh = idx - start; 1202 if (sh > 64) { 1203 sh = (start - idx) + 0xff; 1204 bitmap = bitmap << sh; 1205 sh = 0; 1206 start = idx; 1207 } else if (sh < -64) 1208 sh = 0xff - (start - idx); 1209 else if (sh < 0) { 1210 sh = start - idx; 1211 start = idx; 1212 bitmap = bitmap << sh; 1213 sh = 0; 1214 } 1215 bitmap |= (1 << sh); 1216 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n", 1217 start, (u32)(bitmap & 0xFFFFFFFF)); 1218 } 1219 1220 agg->bitmap = bitmap; 1221 agg->start_idx = start; 1222 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n", 1223 agg->frame_count, agg->start_idx, 1224 (unsigned long long)agg->bitmap); 1225 1226 if (bitmap) 1227 agg->wait_for_ba = 1; 1228 } 1229 return 0; 1230} 1231 1232static void iwl5000_rx_reply_tx(struct iwl_priv *priv, 1233 struct iwl_rx_mem_buffer *rxb) 1234{ 1235 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; 1236 u16 sequence = le16_to_cpu(pkt->hdr.sequence); 1237 int txq_id = SEQ_TO_QUEUE(sequence); 1238 int index = SEQ_TO_INDEX(sequence); 1239 struct iwl_tx_queue *txq = &priv->txq[txq_id]; 1240 struct ieee80211_tx_info *info; 1241 struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; 1242 u32 status = le16_to_cpu(tx_resp->status.status); 1243 int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION; 1244 struct ieee80211_hdr *hdr; 1245 u8 *qc = NULL; 1246 1247 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) { 1248 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d " 1249 "is out of range [0-%d] %d %d\n", txq_id, 1250 index, txq->q.n_bd, txq->q.write_ptr, 1251 txq->q.read_ptr); 1252 return; 1253 } 1254 1255 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]); 1256 memset(&info->status, 0, sizeof(info->status)); 1257 1258 hdr = iwl_tx_queue_get_hdr(priv, txq_id, index); 1259 if (ieee80211_is_data_qos(hdr->frame_control)) { 1260 qc = ieee80211_get_qos_ctl(hdr); 1261 tid = qc[0] & 0xf; 1262 } 1263 1264 sta_id = iwl_get_ra_sta_id(priv, hdr); 1265 if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) { 1266 IWL_ERROR("Station not known\n"); 1267 return; 1268 } 1269 1270 if (txq->sched_retry) { 1271 const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp); 1272 struct iwl_ht_agg *agg = NULL; 1273 1274 if (!qc) 1275 return; 1276 1277 agg = &priv->stations[sta_id].tid[tid].agg; 1278 1279 iwl5000_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); 1280 1281 /* check if BAR is needed */ 1282 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) 1283 info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; 1284 1285 if (txq->q.read_ptr != (scd_ssn & 0xff)) { 1286 int freed, ampdu_q; 1287 index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); 1288 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn " 1289 "%d index %d\n", scd_ssn , index); 1290 freed = iwl_tx_queue_reclaim(priv, txq_id, index); 1291 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; 1292 1293 if (iwl_queue_space(&txq->q) > txq->q.low_mark && 1294 txq_id >= 0 && priv->mac80211_registered && 1295 agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) { 1296 /* calculate mac80211 ampdu sw queue to wake */ 1297 ampdu_q = txq_id - IWL50_FIRST_AMPDU_QUEUE + 1298 priv->hw->queues; 1299 if (agg->state == IWL_AGG_OFF) 1300 ieee80211_wake_queue(priv->hw, txq_id); 1301 else 1302 ieee80211_wake_queue(priv->hw, ampdu_q); 1303 } 1304 iwl_txq_check_empty(priv, sta_id, tid, txq_id); 1305 } 1306 } else { 1307 info->status.retry_count = tx_resp->failure_frame; 1308 info->flags = 1309 iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0; 1310 iwl_hwrate_to_tx_control(priv, 1311 le32_to_cpu(tx_resp->rate_n_flags), 1312 info); 1313 1314 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags " 1315 "0x%x retries %d\n", txq_id, 1316 iwl_get_tx_fail_reason(status), 1317 status, le32_to_cpu(tx_resp->rate_n_flags), 1318 tx_resp->failure_frame); 1319 1320 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); 1321 if (index != -1) { 1322 int freed = iwl_tx_queue_reclaim(priv, txq_id, index); 1323 if (tid != MAX_TID_COUNT) 1324 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; 1325 if (iwl_queue_space(&txq->q) > txq->q.low_mark && 1326 (txq_id >= 0) && priv->mac80211_registered) 1327 ieee80211_wake_queue(priv->hw, txq_id); 1328 if (tid != MAX_TID_COUNT) 1329 iwl_txq_check_empty(priv, sta_id, tid, txq_id); 1330 } 1331 } 1332 1333 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK)) 1334 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n"); 1335} 1336 1337/* Currently 5000 is the supperset of everything */ 1338static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len) 1339{ 1340 return len; 1341} 1342 1343static void iwl5000_setup_deferred_work(struct iwl_priv *priv) 1344{ 1345 /* in 5000 the tx power calibration is done in uCode */ 1346 priv->disable_tx_power_cal = 1; 1347} 1348 1349static void iwl5000_rx_handler_setup(struct iwl_priv *priv) 1350{ 1351 /* init calibration handlers */ 1352 priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] = 1353 iwl5000_rx_calib_result; 1354 priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] = 1355 iwl5000_rx_calib_complete; 1356 priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx; 1357} 1358 1359 1360static int iwl5000_hw_valid_rtc_data_addr(u32 addr) 1361{ 1362 return (addr >= RTC_DATA_LOWER_BOUND) && 1363 (addr < IWL50_RTC_DATA_UPPER_BOUND); 1364} 1365 1366static int iwl5000_send_rxon_assoc(struct iwl_priv *priv) 1367{ 1368 int ret = 0; 1369 struct iwl5000_rxon_assoc_cmd rxon_assoc; 1370 const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon; 1371 const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon; 1372 1373 if ((rxon1->flags == rxon2->flags) && 1374 (rxon1->filter_flags == rxon2->filter_flags) && 1375 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && 1376 (rxon1->ofdm_ht_single_stream_basic_rates == 1377 rxon2->ofdm_ht_single_stream_basic_rates) && 1378 (rxon1->ofdm_ht_dual_stream_basic_rates == 1379 rxon2->ofdm_ht_dual_stream_basic_rates) && 1380 (rxon1->ofdm_ht_triple_stream_basic_rates == 1381 rxon2->ofdm_ht_triple_stream_basic_rates) && 1382 (rxon1->acquisition_data == rxon2->acquisition_data) && 1383 (rxon1->rx_chain == rxon2->rx_chain) && 1384 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { 1385 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n"); 1386 return 0; 1387 } 1388 1389 rxon_assoc.flags = priv->staging_rxon.flags; 1390 rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; 1391 rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; 1392 rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; 1393 rxon_assoc.reserved1 = 0; 1394 rxon_assoc.reserved2 = 0; 1395 rxon_assoc.reserved3 = 0; 1396 rxon_assoc.ofdm_ht_single_stream_basic_rates = 1397 priv->staging_rxon.ofdm_ht_single_stream_basic_rates; 1398 rxon_assoc.ofdm_ht_dual_stream_basic_rates = 1399 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates; 1400 rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain; 1401 rxon_assoc.ofdm_ht_triple_stream_basic_rates = 1402 priv->staging_rxon.ofdm_ht_triple_stream_basic_rates; 1403 rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data; 1404 1405 ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC, 1406 sizeof(rxon_assoc), &rxon_assoc, NULL); 1407 if (ret) 1408 return ret; 1409 1410 return ret; 1411} 1412static int iwl5000_send_tx_power(struct iwl_priv *priv) 1413{ 1414 struct iwl5000_tx_power_dbm_cmd tx_power_cmd; 1415 1416 /* half dBm need to multiply */ 1417 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt); 1418 tx_power_cmd.flags = IWL50_TX_POWER_NO_CLOSED; 1419 tx_power_cmd.srv_chan_lmt = IWL50_TX_POWER_AUTO; 1420 return iwl_send_cmd_pdu_async(priv, REPLY_TX_POWER_DBM_CMD, 1421 sizeof(tx_power_cmd), &tx_power_cmd, 1422 NULL); 1423} 1424 1425static void iwl5000_temperature(struct iwl_priv *priv) 1426{ 1427 /* store temperature from statistics (in Celsius) */ 1428 priv->temperature = le32_to_cpu(priv->statistics.general.temperature); 1429} 1430 1431static struct iwl_hcmd_ops iwl5000_hcmd = { 1432 .rxon_assoc = iwl5000_send_rxon_assoc, 1433}; 1434 1435static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = { 1436 .get_hcmd_size = iwl5000_get_hcmd_size, 1437 .build_addsta_hcmd = iwl5000_build_addsta_hcmd, 1438 .gain_computation = iwl5000_gain_computation, 1439 .chain_noise_reset = iwl5000_chain_noise_reset, 1440}; 1441 1442static struct iwl_lib_ops iwl5000_lib = { 1443 .set_hw_params = iwl5000_hw_set_hw_params, 1444 .alloc_shared_mem = iwl5000_alloc_shared_mem, 1445 .free_shared_mem = iwl5000_free_shared_mem, 1446 .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx, 1447 .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl, 1448 .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl, 1449 .txq_set_sched = iwl5000_txq_set_sched, 1450 .txq_agg_enable = iwl5000_txq_agg_enable, 1451 .txq_agg_disable = iwl5000_txq_agg_disable, 1452 .rx_handler_setup = iwl5000_rx_handler_setup, 1453 .setup_deferred_work = iwl5000_setup_deferred_work, 1454 .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr, 1455 .load_ucode = iwl5000_load_ucode, 1456 .init_alive_start = iwl5000_init_alive_start, 1457 .alive_notify = iwl5000_alive_notify, 1458 .send_tx_power = iwl5000_send_tx_power, 1459 .temperature = iwl5000_temperature, 1460 .apm_ops = { 1461 .init = iwl5000_apm_init, 1462 .reset = iwl5000_apm_reset, 1463 .stop = iwl5000_apm_stop, 1464 .config = iwl5000_nic_config, 1465 .set_pwr_src = iwl4965_set_pwr_src, 1466 }, 1467 .eeprom_ops = { 1468 .regulatory_bands = { 1469 EEPROM_5000_REG_BAND_1_CHANNELS, 1470 EEPROM_5000_REG_BAND_2_CHANNELS, 1471 EEPROM_5000_REG_BAND_3_CHANNELS, 1472 EEPROM_5000_REG_BAND_4_CHANNELS, 1473 EEPROM_5000_REG_BAND_5_CHANNELS, 1474 EEPROM_5000_REG_BAND_24_FAT_CHANNELS, 1475 EEPROM_5000_REG_BAND_52_FAT_CHANNELS 1476 }, 1477 .verify_signature = iwlcore_eeprom_verify_signature, 1478 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore, 1479 .release_semaphore = iwlcore_eeprom_release_semaphore, 1480 .check_version = iwl5000_eeprom_check_version, 1481 .query_addr = iwl5000_eeprom_query_addr, 1482 }, 1483}; 1484 1485static struct iwl_ops iwl5000_ops = { 1486 .lib = &iwl5000_lib, 1487 .hcmd = &iwl5000_hcmd, 1488 .utils = &iwl5000_hcmd_utils, 1489}; 1490 1491static struct iwl_mod_params iwl50_mod_params = { 1492 .num_of_queues = IWL50_NUM_QUEUES, 1493 .enable_qos = 1, 1494 .amsdu_size_8K = 1, 1495 .restart_fw = 1, 1496 /* the rest are 0 by default */ 1497}; 1498 1499 1500struct iwl_cfg iwl5300_agn_cfg = { 1501 .name = "5300AGN", 1502 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", 1503 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, 1504 .ops = &iwl5000_ops, 1505 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, 1506 .mod_params = &iwl50_mod_params, 1507}; 1508 1509struct iwl_cfg iwl5100_bg_cfg = { 1510 .name = "5100BG", 1511 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", 1512 .sku = IWL_SKU_G, 1513 .ops = &iwl5000_ops, 1514 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, 1515 .mod_params = &iwl50_mod_params, 1516}; 1517 1518struct iwl_cfg iwl5100_abg_cfg = { 1519 .name = "5100ABG", 1520 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", 1521 .sku = IWL_SKU_A|IWL_SKU_G, 1522 .ops = &iwl5000_ops, 1523 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, 1524 .mod_params = &iwl50_mod_params, 1525}; 1526 1527struct iwl_cfg iwl5100_agn_cfg = { 1528 .name = "5100AGN", 1529 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", 1530 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, 1531 .ops = &iwl5000_ops, 1532 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, 1533 .mod_params = &iwl50_mod_params, 1534}; 1535 1536struct iwl_cfg iwl5350_agn_cfg = { 1537 .name = "5350AGN", 1538 .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode", 1539 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N, 1540 .ops = &iwl5000_ops, 1541 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE, 1542 .mod_params = &iwl50_mod_params, 1543}; 1544 1545module_param_named(disable50, iwl50_mod_params.disable, int, 0444); 1546MODULE_PARM_DESC(disable50, 1547 "manually disable the 50XX radio (default 0 [radio on])"); 1548module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444); 1549MODULE_PARM_DESC(swcrypto50, 1550 "using software crypto engine (default 0 [hardware])\n"); 1551module_param_named(debug50, iwl50_mod_params.debug, int, 0444); 1552MODULE_PARM_DESC(debug50, "50XX debug output mask"); 1553module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444); 1554MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series"); 1555module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444); 1556MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality"); 1557module_param_named(11n_disable50, iwl50_mod_params.disable_11n, int, 0444); 1558MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality"); 1559module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444); 1560MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series"); 1561module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444); 1562MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error"); 1563