drivers/net/wireless/iwlwifi/iwl-5000.c

   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-helpers.h"
  45 #include "iwl-5000-hw.h"
  46
  47 #define IWL5000_UCODE_API  "-1"
  48
  49 static const u16 iwl5000_default_queue_to_tx_fifo[] = {
  50         IWL_TX_FIFO_AC3,
  51         IWL_TX_FIFO_AC2,
  52         IWL_TX_FIFO_AC1,
  53         IWL_TX_FIFO_AC0,
  54         IWL50_CMD_FIFO_NUM,
  55         IWL_TX_FIFO_HCCA_1,
  56         IWL_TX_FIFO_HCCA_2
  57 };
  58
  59 /* FIXME: same implementation as 4965 */
  60 static int iwl5000_apm_stop_master(struct iwl_priv *priv)
  61 {
  62         int ret = 0;
  63         unsigned long flags;
  64
  65         spin_lock_irqsave(&priv->lock, flags);
  66
  67         /* set stop master bit */
  68         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
  69
  70         ret = iwl_poll_bit(priv, CSR_RESET,
  71                                   CSR_RESET_REG_FLAG_MASTER_DISABLED,
  72                                   CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
  73         if (ret < 0)
  74                 goto out;
  75
  76 out:
  77         spin_unlock_irqrestore(&priv->lock, flags);
  78         IWL_DEBUG_INFO("stop master\n");
  79
  80         return ret;
  81 }
  82
  83
  84 static int iwl5000_apm_init(struct iwl_priv *priv)
  85 {
  86         int ret = 0;
  87
  88         iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
  89                     CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
  90
  91         /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
  92         iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
  93                     CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
  94
  95         iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
  96
  97         /* set "initialization complete" bit to move adapter
  98          * D0U* --> D0A* state */
  99         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
 100
 101         /* wait for clock stabilization */
 102         ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
 103                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
 104                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
 105         if (ret < 0) {
 106                 IWL_DEBUG_INFO("Failed to init the card\n");
 107                 return ret;
 108         }
 109
 110         ret = iwl_grab_nic_access(priv);
 111         if (ret)
 112                 return ret;
 113
 114         /* enable DMA */
 115         iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
 116
 117         udelay(20);
 118
 119         /* disable L1-Active */
 120         iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
 121                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 122
 123         iwl_release_nic_access(priv);
 124
 125         return ret;
 126 }
 127
 128 /* FIXME: this is indentical to 4965 */
 129 static void iwl5000_apm_stop(struct iwl_priv *priv)
 130 {
 131         unsigned long flags;
 132
 133         iwl5000_apm_stop_master(priv);
 134
 135         spin_lock_irqsave(&priv->lock, flags);
 136
 137         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
 138
 139         udelay(10);
 140
 141         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
 142
 143         spin_unlock_irqrestore(&priv->lock, flags);
 144 }
 145
 146
 147 static int iwl5000_apm_reset(struct iwl_priv *priv)
 148 {
 149         int ret = 0;
 150         unsigned long flags;
 151
 152         iwl5000_apm_stop_master(priv);
 153
 154         spin_lock_irqsave(&priv->lock, flags);
 155
 156         iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
 157
 158         udelay(10);
 159
 160
 161         /* FIXME: put here L1A -L0S w/a */
 162
 163         iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
 164
 165         /* set "initialization complete" bit to move adapter
 166          * D0U* --> D0A* state */
 167         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
 168
 169         /* wait for clock stabilization */
 170         ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
 171                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
 172                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
 173         if (ret < 0) {
 174                 IWL_DEBUG_INFO("Failed to init the card\n");
 175                 goto out;
 176         }
 177
 178         ret = iwl_grab_nic_access(priv);
 179         if (ret)
 180                 goto out;
 181
 182         /* enable DMA */
 183         iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
 184
 185         udelay(20);
 186
 187         /* disable L1-Active */
 188         iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
 189                           APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 190
 191         iwl_release_nic_access(priv);
 192
 193 out:
 194         spin_unlock_irqrestore(&priv->lock, flags);
 195
 196         return ret;
 197 }
 198
 199
 200 static void iwl5000_nic_config(struct iwl_priv *priv)
 201 {
 202         unsigned long flags;
 203         u16 radio_cfg;
 204         u8 val_link;
 205
 206         spin_lock_irqsave(&priv->lock, flags);
 207
 208         pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link);
 209
 210         /* L1 is enabled by BIOS */
 211         if ((val_link & PCI_LINK_VAL_L1_EN) == PCI_LINK_VAL_L1_EN)
 212                 /* diable L0S disabled L1A enabled */
 213                 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
 214         else
 215                 /* L0S enabled L1A disabled */
 216                 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
 217
 218         radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
 219
 220         /* write radio config values to register */
 221         if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_5000_RF_CFG_TYPE_MAX)
 222                 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 223                             EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
 224                             EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
 225                             EEPROM_RF_CFG_DASH_MSK(radio_cfg));
 226
 227         /* set CSR_HW_CONFIG_REG for uCode use */
 228         iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
 229                     CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 230                     CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
 231
 232         spin_unlock_irqrestore(&priv->lock, flags);
 233 }
 234
 235
 236
 237 /*
 238  * EEPROM
 239  */
 240 static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
 241 {
 242         u16 offset = 0;
 243
 244         if ((address & INDIRECT_ADDRESS) == 0)
 245                 return address;
 246
 247         switch (address & INDIRECT_TYPE_MSK) {
 248         case INDIRECT_HOST:
 249                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST);
 250                 break;
 251         case INDIRECT_GENERAL:
 252                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL);
 253                 break;
 254         case INDIRECT_REGULATORY:
 255                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY);
 256                 break;
 257         case INDIRECT_CALIBRATION:
 258                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION);
 259                 break;
 260         case INDIRECT_PROCESS_ADJST:
 261                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST);
 262                 break;
 263         case INDIRECT_OTHERS:
 264                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS);
 265                 break;
 266         default:
 267                 IWL_ERROR("illegal indirect type: 0x%X\n",
 268                 address & INDIRECT_TYPE_MSK);
 269                 break;
 270         }
 271
 272         /* translate the offset from words to byte */
 273         return (address & ADDRESS_MSK) + (offset << 1);
 274 }
 275
 276 static int iwl5000_eeprom_check_version(struct iwl_priv *priv)
 277 {
 278         u16 eeprom_ver;
 279         struct iwl_eeprom_calib_hdr {
 280                 u8 version;
 281                 u8 pa_type;
 282                 u16 voltage;
 283         } *hdr;
 284
 285         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 286
 287         hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
 288                                                         EEPROM_5000_CALIB_ALL);
 289
 290         if (eeprom_ver < EEPROM_5000_EEPROM_VERSION ||
 291             hdr->version < EEPROM_5000_TX_POWER_VERSION)
 292                 goto err;
 293
 294         return 0;
 295 err:
 296         IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
 297                   eeprom_ver, EEPROM_5000_EEPROM_VERSION,
 298                   hdr->version, EEPROM_5000_TX_POWER_VERSION);
 299         return -EINVAL;
 300
 301 }
 302
 303 #ifdef CONFIG_IWL5000_RUN_TIME_CALIB
 304
 305 static void iwl5000_gain_computation(struct iwl_priv *priv,
 306                 u32 average_noise[NUM_RX_CHAINS],
 307                 u16 min_average_noise_antenna_i,
 308                 u32 min_average_noise)
 309 {
 310         int i;
 311         s32 delta_g;
 312         struct iwl_chain_noise_data *data = &priv->chain_noise_data;
 313
 314         /* Find Gain Code for the antennas B and C */
 315         for (i = 1; i < NUM_RX_CHAINS; i++) {
 316                 if ((data->disconn_array[i])) {
 317                         data->delta_gain_code[i] = 0;
 318                         continue;
 319                 }
 320                 delta_g = (1000 * ((s32)average_noise[0] -
 321                         (s32)average_noise[i])) / 1500;
 322                 /* bound gain by 2 bits value max, 3rd bit is sign */
 323                 data->delta_gain_code[i] =
 324                         min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
 325
 326                 if (delta_g < 0)
 327                         /* set negative sign */
 328                         data->delta_gain_code[i] |= (1 << 2);
 329         }
 330
 331         IWL_DEBUG_CALIB("Delta gains: ANT_B = %d  ANT_C = %d\n",
 332                         data->delta_gain_code[1], data->delta_gain_code[2]);
 333
 334         if (!data->radio_write) {
 335                 struct iwl5000_calibration_chain_noise_gain_cmd cmd;
 336                 memset(&cmd, 0, sizeof(cmd));
 337
 338                 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD;
 339                 cmd.delta_gain_1 = data->delta_gain_code[1];
 340                 cmd.delta_gain_2 = data->delta_gain_code[2];
 341                 iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
 342                         sizeof(cmd), &cmd, NULL);
 343
 344                 data->radio_write = 1;
 345                 data->state = IWL_CHAIN_NOISE_CALIBRATED;
 346         }
 347
 348         data->chain_noise_a = 0;
 349         data->chain_noise_b = 0;
 350         data->chain_noise_c = 0;
 351         data->chain_signal_a = 0;
 352         data->chain_signal_b = 0;
 353         data->chain_signal_c = 0;
 354         data->beacon_count = 0;
 355 }
 356
 357
 358 static void iwl5000_chain_noise_reset(struct iwl_priv *priv)
 359 {
 360         struct iwl_chain_noise_data *data = &priv->chain_noise_data;
 361
 362         if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
 363                 struct iwl5000_calibration_chain_noise_reset_cmd cmd;
 364
 365                 memset(&cmd, 0, sizeof(cmd));
 366                 cmd.op_code = IWL5000_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD;
 367                 if (iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 368                         sizeof(cmd), &cmd))
 369                         IWL_ERROR("Could not send REPLY_PHY_CALIBRATION_CMD\n");
 370                 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
 371                 IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
 372         }
 373 }
 374
 375 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
 376         .min_nrg_cck = 95,
 377         .max_nrg_cck = 0,
 378         .auto_corr_min_ofdm = 90,
 379         .auto_corr_min_ofdm_mrc = 170,
 380         .auto_corr_min_ofdm_x1 = 120,
 381         .auto_corr_min_ofdm_mrc_x1 = 240,
 382
 383         .auto_corr_max_ofdm = 120,
 384         .auto_corr_max_ofdm_mrc = 210,
 385         .auto_corr_max_ofdm_x1 = 155,
 386         .auto_corr_max_ofdm_mrc_x1 = 290,
 387
 388         .auto_corr_min_cck = 125,
 389         .auto_corr_max_cck = 200,
 390         .auto_corr_min_cck_mrc = 170,
 391         .auto_corr_max_cck_mrc = 400,
 392         .nrg_th_cck = 95,
 393         .nrg_th_ofdm = 95,
 394 };
 395
 396 #endif /* CONFIG_IWL5000_RUN_TIME_CALIB */
 397
 398
 399
 400 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 401                                            size_t offset)
 402 {
 403         u32 address = eeprom_indirect_address(priv, offset);
 404         BUG_ON(address >= priv->cfg->eeprom_size);
 405         return &priv->eeprom[address];
 406 }
 407
 408 /*
 409  *  Calibration
 410  */
 411 static int iwl5000_send_Xtal_calib(struct iwl_priv *priv)
 412 {
 413         u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL);
 414
 415         struct iwl5000_calibration cal_cmd = {
 416                 .op_code = IWL5000_PHY_CALIBRATE_CRYSTAL_FRQ_CMD,
 417                 .data = {
 418                         (u8)xtal_calib[0],
 419                         (u8)xtal_calib[1],
 420                 }
 421         };
 422
 423         return iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 424                                 sizeof(cal_cmd), &cal_cmd);
 425 }
 426
 427 static int iwl5000_send_calib_results(struct iwl_priv *priv)
 428 {
 429         int ret = 0;
 430
 431         if (priv->calib_results.lo_res)
 432                 ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 433                                         priv->calib_results.lo_res_len,
 434                                         priv->calib_results.lo_res);
 435         if (ret)
 436                 goto err;
 437
 438
 439         if (priv->calib_results.tx_iq_res)
 440                 ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 441                                 priv->calib_results.tx_iq_res_len,
 442                                 priv->calib_results.tx_iq_res);
 443
 444         if (ret)
 445                 goto err;
 446
 447         if (priv->calib_results.tx_iq_perd_res)
 448                 ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
 449                                       priv->calib_results.tx_iq_perd_res_len,
 450                                       priv->calib_results.tx_iq_perd_res);
 451         if (ret)
 452                 goto err;
 453
 454         return 0;
 455 err:
 456         IWL_ERROR("Error %d\n", ret);
 457         return ret;
 458 }
 459
 460 static int iwl5000_send_calib_cfg(struct iwl_priv *priv)
 461 {
 462         struct iwl5000_calib_cfg_cmd calib_cfg_cmd;
 463         struct iwl_host_cmd cmd = {
 464                 .id = CALIBRATION_CFG_CMD,
 465                 .len = sizeof(struct iwl5000_calib_cfg_cmd),
 466                 .data = &calib_cfg_cmd,
 467         };
 468
 469         memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
 470         calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
 471         calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
 472         calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
 473         calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
 474
 475         return iwl_send_cmd(priv, &cmd);
 476 }
 477
 478 static void iwl5000_rx_calib_result(struct iwl_priv *priv,
 479                              struct iwl_rx_mem_buffer *rxb)
 480 {
 481         struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
 482         struct iwl5000_calib_hdr *hdr = (struct iwl5000_calib_hdr *)pkt->u.raw;
 483         int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK;
 484
 485         iwl_free_calib_results(priv);
 486
 487         /* reduce the size of the length field itself */
 488         len -= 4;
 489
 490         switch (hdr->op_code) {
 491         case IWL5000_PHY_CALIBRATE_LO_CMD:
 492                 priv->calib_results.lo_res = kzalloc(len, GFP_ATOMIC);
 493                 priv->calib_results.lo_res_len = len;
 494                 memcpy(priv->calib_results.lo_res, pkt->u.raw, len);
 495                 break;
 496         case IWL5000_PHY_CALIBRATE_TX_IQ_CMD:
 497                 priv->calib_results.tx_iq_res = kzalloc(len, GFP_ATOMIC);
 498                 priv->calib_results.tx_iq_res_len = len;
 499                 memcpy(priv->calib_results.tx_iq_res, pkt->u.raw, len);
 500                 break;
 501         case IWL5000_PHY_CALIBRATE_TX_IQ_PERD_CMD:
 502                 priv->calib_results.tx_iq_perd_res = kzalloc(len, GFP_ATOMIC);
 503                 priv->calib_results.tx_iq_perd_res_len = len;
 504                 memcpy(priv->calib_results.tx_iq_perd_res, pkt->u.raw, len);
 505                 break;
 506         default:
 507                 IWL_ERROR("Unknown calibration notification %d\n",
 508                           hdr->op_code);
 509                 return;
 510         }
 511 }
 512
 513 static void iwl5000_rx_calib_complete(struct iwl_priv *priv,
 514                                struct iwl_rx_mem_buffer *rxb)
 515 {
 516         IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n");
 517         queue_work(priv->workqueue, &priv->restart);
 518 }
 519
 520 /*
 521  * ucode
 522  */
 523 static int iwl5000_load_section(struct iwl_priv *priv,
 524                                 struct fw_desc *image,
 525                                 u32 dst_addr)
 526 {
 527         int ret = 0;
 528         unsigned long flags;
 529
 530         dma_addr_t phy_addr = image->p_addr;
 531         u32 byte_cnt = image->len;
 532
 533         spin_lock_irqsave(&priv->lock, flags);
 534         ret = iwl_grab_nic_access(priv);
 535         if (ret) {
 536                 spin_unlock_irqrestore(&priv->lock, flags);
 537                 return ret;
 538         }
 539
 540         iwl_write_direct32(priv,
 541                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 542                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
 543
 544         iwl_write_direct32(priv,
 545                 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
 546
 547         iwl_write_direct32(priv,
 548                 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
 549                 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 550
 551         /* FIME: write the MSB of the phy_addr in CTRL1
 552          * iwl_write_direct32(priv,
 553                 IWL_FH_TFDIB_CTRL1_REG(IWL_FH_SRVC_CHNL),
 554                 ((phy_addr & MSB_MSK)
 555                         << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_count);
 556          */
 557         iwl_write_direct32(priv,
 558                 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL), byte_cnt);
 559         iwl_write_direct32(priv,
 560                 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
 561                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
 562                 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
 563                 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
 564
 565         iwl_write_direct32(priv,
 566                 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
 567                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE       |
 568                 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL |
 569                 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 570
 571         iwl_release_nic_access(priv);
 572         spin_unlock_irqrestore(&priv->lock, flags);
 573         return 0;
 574 }
 575
 576 static int iwl5000_load_given_ucode(struct iwl_priv *priv,
 577                 struct fw_desc *inst_image,
 578                 struct fw_desc *data_image)
 579 {
 580         int ret = 0;
 581
 582         ret = iwl5000_load_section(
 583                 priv, inst_image, RTC_INST_LOWER_BOUND);
 584         if (ret)
 585                 return ret;
 586
 587         IWL_DEBUG_INFO("INST uCode section being loaded...\n");
 588         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
 589                                 priv->ucode_write_complete, 5 * HZ);
 590         if (ret == -ERESTARTSYS) {
 591                 IWL_ERROR("Could not load the INST uCode section due "
 592                         "to interrupt\n");
 593                 return ret;
 594         }
 595         if (!ret) {
 596                 IWL_ERROR("Could not load the INST uCode section\n");
 597                 return -ETIMEDOUT;
 598         }
 599
 600         priv->ucode_write_complete = 0;
 601
 602         ret = iwl5000_load_section(
 603                 priv, data_image, RTC_DATA_LOWER_BOUND);
 604         if (ret)
 605                 return ret;
 606
 607         IWL_DEBUG_INFO("DATA uCode section being loaded...\n");
 608
 609         ret = wait_event_interruptible_timeout(priv->wait_command_queue,
 610                                 priv->ucode_write_complete, 5 * HZ);
 611         if (ret == -ERESTARTSYS) {
 612                 IWL_ERROR("Could not load the INST uCode section due "
 613                         "to interrupt\n");
 614                 return ret;
 615         } else if (!ret) {
 616                 IWL_ERROR("Could not load the DATA uCode section\n");
 617                 return -ETIMEDOUT;
 618         } else
 619                 ret = 0;
 620
 621         priv->ucode_write_complete = 0;
 622
 623         return ret;
 624 }
 625
 626 static int iwl5000_load_ucode(struct iwl_priv *priv)
 627 {
 628         int ret = 0;
 629
 630         /* check whether init ucode should be loaded, or rather runtime ucode */
 631         if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
 632                 IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n");
 633                 ret = iwl5000_load_given_ucode(priv,
 634                         &priv->ucode_init, &priv->ucode_init_data);
 635                 if (!ret) {
 636                         IWL_DEBUG_INFO("Init ucode load complete.\n");
 637                         priv->ucode_type = UCODE_INIT;
 638                 }
 639         } else {
 640                 IWL_DEBUG_INFO("Init ucode not found, or already loaded. "
 641                         "Loading runtime ucode...\n");
 642                 ret = iwl5000_load_given_ucode(priv,
 643                         &priv->ucode_code, &priv->ucode_data);
 644                 if (!ret) {
 645                         IWL_DEBUG_INFO("Runtime ucode load complete.\n");
 646                         priv->ucode_type = UCODE_RT;
 647                 }
 648         }
 649
 650         return ret;
 651 }
 652
 653 static void iwl5000_init_alive_start(struct iwl_priv *priv)
 654 {
 655         int ret = 0;
 656
 657         /* Check alive response for "valid" sign from uCode */
 658         if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
 659                 /* We had an error bringing up the hardware, so take it
 660                  * all the way back down so we can try again */
 661                 IWL_DEBUG_INFO("Initialize Alive failed.\n");
 662                 goto restart;
 663         }
 664
 665         /* initialize uCode was loaded... verify inst image.
 666          * This is a paranoid check, because we would not have gotten the
 667          * "initialize" alive if code weren't properly loaded.  */
 668         if (iwl_verify_ucode(priv)) {
 669                 /* Runtime instruction load was bad;
 670                  * take it all the way back down so we can try again */
 671                 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
 672                 goto restart;
 673         }
 674
 675         iwlcore_clear_stations_table(priv);
 676         ret = priv->cfg->ops->lib->alive_notify(priv);
 677         if (ret) {
 678                 IWL_WARNING("Could not complete ALIVE transition: %d\n", ret);
 679                 goto restart;
 680         }
 681
 682         iwl5000_send_calib_cfg(priv);
 683         return;
 684
 685 restart:
 686         /* real restart (first load init_ucode) */
 687         queue_work(priv->workqueue, &priv->restart);
 688 }
 689
 690 static void iwl5000_set_wr_ptrs(struct iwl_priv *priv,
 691                                 int txq_id, u32 index)
 692 {
 693         iwl_write_direct32(priv, HBUS_TARG_WRPTR,
 694                         (index & 0xff) | (txq_id << 8));
 695         iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index);
 696 }
 697
 698 static void iwl5000_tx_queue_set_status(struct iwl_priv *priv,
 699                                         struct iwl_tx_queue *txq,
 700                                         int tx_fifo_id, int scd_retry)
 701 {
 702         int txq_id = txq->q.id;
 703         int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0;
 704
 705         iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
 706                         (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
 707                         (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) |
 708                         (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) |
 709                         IWL50_SCD_QUEUE_STTS_REG_MSK);
 710
 711         txq->sched_retry = scd_retry;
 712
 713         IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
 714                        active ? "Activate" : "Deactivate",
 715                        scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
 716 }
 717
 718 static int iwl5000_send_wimax_coex(struct iwl_priv *priv)
 719 {
 720         struct iwl_wimax_coex_cmd coex_cmd;
 721
 722         memset(&coex_cmd, 0, sizeof(coex_cmd));
 723
 724         return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
 725                                 sizeof(coex_cmd), &coex_cmd);
 726 }
 727
 728 static int iwl5000_alive_notify(struct iwl_priv *priv)
 729 {
 730         u32 a;
 731         int i = 0;
 732         unsigned long flags;
 733         int ret;
 734
 735         spin_lock_irqsave(&priv->lock, flags);
 736
 737         ret = iwl_grab_nic_access(priv);
 738         if (ret) {
 739                 spin_unlock_irqrestore(&priv->lock, flags);
 740                 return ret;
 741         }
 742
 743         priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR);
 744         a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET;
 745         for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET;
 746                 a += 4)
 747                 iwl_write_targ_mem(priv, a, 0);
 748         for (; a < priv->scd_base_addr + IWL50_SCD_TRANSLATE_TBL_OFFSET;
 749                 a += 4)
 750                 iwl_write_targ_mem(priv, a, 0);
 751         for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
 752                 iwl_write_targ_mem(priv, a, 0);
 753
 754         iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR,
 755                 (priv->shared_phys +
 756                  offsetof(struct iwl5000_shared, queues_byte_cnt_tbls)) >> 10);
 757         iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL,
 758                 IWL50_SCD_QUEUECHAIN_SEL_ALL(
 759                         priv->hw_params.max_txq_num));
 760         iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0);
 761
 762         /* initiate the queues */
 763         for (i = 0; i < priv->hw_params.max_txq_num; i++) {
 764                 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0);
 765                 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
 766                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 767                                 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
 768                 iwl_write_targ_mem(priv, priv->scd_base_addr +
 769                                 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) +
 770                                 sizeof(u32),
 771                                 ((SCD_WIN_SIZE <<
 772                                 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
 773                                 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
 774                                 ((SCD_FRAME_LIMIT <<
 775                                 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
 776                                 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
 777         }
 778
 779         iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK,
 780                         IWL_MASK(0, priv->hw_params.max_txq_num));
 781
 782         /* Activate all Tx DMA/FIFO channels */
 783         priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
 784
 785         iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
 786         /* map qos queues to fifos one-to-one */
 787         for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) {
 788                 int ac = iwl5000_default_queue_to_tx_fifo[i];
 789                 iwl_txq_ctx_activate(priv, i);
 790                 iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
 791         }
 792         /* TODO - need to initialize those FIFOs inside the loop above,
 793          * not only mark them as active */
 794         iwl_txq_ctx_activate(priv, 4);
 795         iwl_txq_ctx_activate(priv, 7);
 796         iwl_txq_ctx_activate(priv, 8);
 797         iwl_txq_ctx_activate(priv, 9);
 798
 799         iwl_release_nic_access(priv);
 800         spin_unlock_irqrestore(&priv->lock, flags);
 801
 802
 803         iwl5000_send_wimax_coex(priv);
 804
 805         iwl5000_send_Xtal_calib(priv);
 806
 807         if (priv->ucode_type == UCODE_RT) {
 808                 iwl5000_send_calib_results(priv);
 809                 set_bit(STATUS_READY, &priv->status);
 810                 priv->is_open = 1;
 811         }
 812
 813         return 0;
 814 }
 815
 816 static 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.sw_crypto = priv->cfg->mod_params->sw_crypto;
 827         priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
 828         priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
 829         if (priv->cfg->mod_params->amsdu_size_8K)
 830                 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
 831         else
 832                 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
 833         priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
 834         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
 835         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
 836         priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
 837         priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
 838         priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
 839         priv->hw_params.fat_channel =  BIT(IEEE80211_BAND_2GHZ) |
 840                                         BIT(IEEE80211_BAND_5GHZ);
 841 #ifdef CONFIG_IWL5000_RUN_TIME_CALIB
 842         priv->hw_params.sens = &iwl5000_sensitivity;
 843 #endif
 844
 845         switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 846         case CSR_HW_REV_TYPE_5100:
 847         case CSR_HW_REV_TYPE_5150:
 848                 priv->hw_params.tx_chains_num = 1;
 849                 priv->hw_params.rx_chains_num = 2;
 850                 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */
 851                 priv->hw_params.valid_tx_ant = ANT_A;
 852                 priv->hw_params.valid_rx_ant = ANT_AB;
 853                 break;
 854         case CSR_HW_REV_TYPE_5300:
 855         case CSR_HW_REV_TYPE_5350:
 856                 priv->hw_params.tx_chains_num = 3;
 857                 priv->hw_params.rx_chains_num = 3;
 858                 priv->hw_params.valid_tx_ant = ANT_ABC;
 859                 priv->hw_params.valid_rx_ant = ANT_ABC;
 860                 break;
 861         }
 862
 863         switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 864         case CSR_HW_REV_TYPE_5100:
 865         case CSR_HW_REV_TYPE_5300:
 866                 /* 5X00 wants in Celsius */
 867                 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
 868                 break;
 869         case CSR_HW_REV_TYPE_5150:
 870         case CSR_HW_REV_TYPE_5350:
 871                 /* 5X50 wants in Kelvin */
 872                 priv->hw_params.ct_kill_threshold =
 873                                 CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD);
 874                 break;
 875         }
 876
 877         return 0;
 878 }
 879
 880 static int iwl5000_alloc_shared_mem(struct iwl_priv *priv)
 881 {
 882         priv->shared_virt = pci_alloc_consistent(priv->pci_dev,
 883                                         sizeof(struct iwl5000_shared),
 884                                         &priv->shared_phys);
 885         if (!priv->shared_virt)
 886                 return -ENOMEM;
 887
 888         memset(priv->shared_virt, 0, sizeof(struct iwl5000_shared));
 889
 890         priv->rb_closed_offset = offsetof(struct iwl5000_shared, rb_closed);
 891
 892         return 0;
 893 }
 894
 895 static void iwl5000_free_shared_mem(struct iwl_priv *priv)
 896 {
 897         if (priv->shared_virt)
 898                 pci_free_consistent(priv->pci_dev,
 899                                     sizeof(struct iwl5000_shared),
 900                                     priv->shared_virt,
 901                                     priv->shared_phys);
 902 }
 903
 904 static int iwl5000_shared_mem_rx_idx(struct iwl_priv *priv)
 905 {
 906         struct iwl5000_shared *s = priv->shared_virt;
 907         return le32_to_cpu(s->rb_closed) & 0xFFF;
 908 }
 909
 910 /**
 911  * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
 912  */
 913 static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
 914                                             struct iwl_tx_queue *txq,
 915                                             u16 byte_cnt)
 916 {
 917         struct iwl5000_shared *shared_data = priv->shared_virt;
 918         int txq_id = txq->q.id;
 919         u8 sec_ctl = 0;
 920         u8 sta = 0;
 921         int len;
 922
 923         len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
 924
 925         if (txq_id != IWL_CMD_QUEUE_NUM) {
 926                 sta = txq->cmd[txq->q.write_ptr].cmd.tx.sta_id;
 927                 sec_ctl = txq->cmd[txq->q.write_ptr].cmd.tx.sec_ctl;
 928
 929                 switch (sec_ctl & TX_CMD_SEC_MSK) {
 930                 case TX_CMD_SEC_CCM:
 931                         len += CCMP_MIC_LEN;
 932                         break;
 933                 case TX_CMD_SEC_TKIP:
 934                         len += TKIP_ICV_LEN;
 935                         break;
 936                 case TX_CMD_SEC_WEP:
 937                         len += WEP_IV_LEN + WEP_ICV_LEN;
 938                         break;
 939                 }
 940         }
 941
 942         IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
 943                        tfd_offset[txq->q.write_ptr], byte_cnt, len);
 944
 945         IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
 946                        tfd_offset[txq->q.write_ptr], sta_id, sta);
 947
 948         if (txq->q.write_ptr < IWL50_MAX_WIN_SIZE) {
 949                 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
 950                         tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
 951                         byte_cnt, len);
 952                 IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
 953                         tfd_offset[IWL50_QUEUE_SIZE + txq->q.write_ptr],
 954                         sta_id, sta);
 955         }
 956 }
 957
 958 static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
 959 {
 960         u16 size = (u16)sizeof(struct iwl_addsta_cmd);
 961         memcpy(data, cmd, size);
 962         return size;
 963 }
 964
 965
 966 /*
 967  * Activate/Deactivat Tx DMA/FIFO channels according tx fifos mask
 968  * must be called under priv->lock and mac access
 969  */
 970 static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
 971 {
 972         iwl_write_prph(priv, IWL50_SCD_TXFACT, mask);
 973 }
 974
 975
 976 static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
 977 {
 978         __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
 979                                 tx_resp->frame_count);
 980         return le32_to_cpu(*scd_ssn) & MAX_SN;
 981
 982 }
 983
 984 static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv,
 985                                       struct iwl_ht_agg *agg,
 986                                       struct iwl5000_tx_resp *tx_resp,
 987                                       u16 start_idx)
 988 {
 989         u16 status;
 990         struct agg_tx_status *frame_status = &tx_resp->status;
 991         struct ieee80211_tx_info *info = NULL;
 992         struct ieee80211_hdr *hdr = NULL;
 993         int i, sh;
 994         int txq_id, idx;
 995         u16 seq;
 996
 997         if (agg->wait_for_ba)
 998                 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
 999
1000         agg->frame_count = tx_resp->frame_count;
1001         agg->start_idx = start_idx;
1002         agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1003         agg->bitmap = 0;
1004
1005         /* # frames attempted by Tx command */
1006         if (agg->frame_count == 1) {
1007                 /* Only one frame was attempted; no block-ack will arrive */
1008                 status = le16_to_cpu(frame_status[0].status);
1009                 seq  = le16_to_cpu(frame_status[0].sequence);
1010                 idx = SEQ_TO_INDEX(seq);
1011                 txq_id = SEQ_TO_QUEUE(seq);
1012
1013                 /* FIXME: code repetition */
1014                 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1015                                    agg->frame_count, agg->start_idx, idx);
1016
1017                 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
1018                 info->status.retry_count = tx_resp->failure_frame;
1019                 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1020                 info->flags |= iwl_is_tx_success(status)?
1021                         IEEE80211_TX_STAT_ACK : 0;
1022                 iwl4965_hwrate_to_tx_control(priv,
1023                                              le32_to_cpu(tx_resp->rate_n_flags),
1024                                              info);
1025                 /* FIXME: code repetition end */
1026
1027                 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1028                                     status & 0xff, tx_resp->failure_frame);
1029                 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
1030                         iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
1031
1032                 agg->wait_for_ba = 0;
1033         } else {
1034                 /* Two or more frames were attempted; expect block-ack */
1035                 u64 bitmap = 0;
1036                 int start = agg->start_idx;
1037
1038                 /* Construct bit-map of pending frames within Tx window */
1039                 for (i = 0; i < agg->frame_count; i++) {
1040                         u16 sc;
1041                         status = le16_to_cpu(frame_status[i].status);
1042                         seq  = le16_to_cpu(frame_status[i].sequence);
1043                         idx = SEQ_TO_INDEX(seq);
1044                         txq_id = SEQ_TO_QUEUE(seq);
1045
1046                         if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
1047                                       AGG_TX_STATE_ABORT_MSK))
1048                                 continue;
1049
1050                         IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1051                                            agg->frame_count, txq_id, idx);
1052
1053                         hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
1054
1055                         sc = le16_to_cpu(hdr->seq_ctrl);
1056                         if (idx != (SEQ_TO_SN(sc) & 0xff)) {
1057                                 IWL_ERROR("BUG_ON idx doesn't match seq control"
1058                                           " idx=%d, seq_idx=%d, seq=%d\n",
1059                                           idx, SEQ_TO_SN(sc),
1060                                           hdr->seq_ctrl);
1061                                 return -1;
1062                         }
1063
1064                         IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1065                                            i, idx, SEQ_TO_SN(sc));
1066
1067                         sh = idx - start;
1068                         if (sh > 64) {
1069                                 sh = (start - idx) + 0xff;
1070                                 bitmap = bitmap << sh;
1071                                 sh = 0;
1072                                 start = idx;
1073                         } else if (sh < -64)
1074                                 sh  = 0xff - (start - idx);
1075                         else if (sh < 0) {
1076                                 sh = start - idx;
1077                                 start = idx;
1078                                 bitmap = bitmap << sh;
1079                                 sh = 0;
1080                         }
1081                         bitmap |= (1 << sh);
1082                         IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
1083                                            start, (u32)(bitmap & 0xFFFFFFFF));
1084                 }
1085
1086                 agg->bitmap = bitmap;
1087                 agg->start_idx = start;
1088                 agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1089                 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1090                                    agg->frame_count, agg->start_idx,
1091                                    (unsigned long long)agg->bitmap);
1092
1093                 if (bitmap)
1094                         agg->wait_for_ba = 1;
1095         }
1096         return 0;
1097 }
1098
1099 static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
1100                                 struct iwl_rx_mem_buffer *rxb)
1101 {
1102         struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1103         u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1104         int txq_id = SEQ_TO_QUEUE(sequence);
1105         int index = SEQ_TO_INDEX(sequence);
1106         struct iwl_tx_queue *txq = &priv->txq[txq_id];
1107         struct ieee80211_tx_info *info;
1108         struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
1109         u32  status = le16_to_cpu(tx_resp->status.status);
1110 #ifdef CONFIG_IWL4965_HT
1111         int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
1112         u16 fc;
1113         struct ieee80211_hdr *hdr;
1114         u8 *qc = NULL;
1115 #endif
1116
1117         if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
1118                 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
1119                           "is out of range [0-%d] %d %d\n", txq_id,
1120                           index, txq->q.n_bd, txq->q.write_ptr,
1121                           txq->q.read_ptr);
1122                 return;
1123         }
1124
1125         info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
1126         memset(&info->status, 0, sizeof(info->status));
1127
1128 #ifdef CONFIG_IWL4965_HT
1129         hdr = iwl_tx_queue_get_hdr(priv, txq_id, index);
1130         fc = le16_to_cpu(hdr->frame_control);
1131         if (ieee80211_is_qos_data(fc)) {
1132                 qc = ieee80211_get_qos_ctrl(hdr, ieee80211_get_hdrlen(fc));
1133                 tid = qc[0] & 0xf;
1134         }
1135
1136         sta_id = iwl_get_ra_sta_id(priv, hdr);
1137         if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
1138                 IWL_ERROR("Station not known\n");
1139                 return;
1140         }
1141
1142         if (txq->sched_retry) {
1143                 const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp);
1144                 struct iwl_ht_agg *agg = NULL;
1145
1146                 if (!qc)
1147                         return;
1148
1149                 agg = &priv->stations[sta_id].tid[tid].agg;
1150
1151                 iwl5000_tx_status_reply_tx(priv, agg, tx_resp, index);
1152
1153                 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) {
1154                         /* TODO: send BAR */
1155                 }
1156
1157                 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
1158                         int freed, ampdu_q;
1159                         index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
1160                         IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
1161                                            "%d index %d\n", scd_ssn , index);
1162                         freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1163                         priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1164
1165                         if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1166                             txq_id >= 0 && priv->mac80211_registered &&
1167                             agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
1168                                 /* calculate mac80211 ampdu sw queue to wake */
1169                                 ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID +
1170                                           priv->hw->queues;
1171                                 if (agg->state == IWL_AGG_OFF)
1172                                         ieee80211_wake_queue(priv->hw, txq_id);
1173                                 else
1174                                         ieee80211_wake_queue(priv->hw, ampdu_q);
1175                         }
1176                         iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
1177                 }
1178         } else {
1179 #endif /* CONFIG_IWL4965_HT */
1180
1181         info->status.retry_count = tx_resp->failure_frame;
1182         info->flags = iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
1183         iwl4965_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),
1184                                      info);
1185
1186         IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
1187                      "retries %d\n", txq_id, iwl_get_tx_fail_reason(status),
1188                      status, le32_to_cpu(tx_resp->rate_n_flags),
1189                      tx_resp->failure_frame);
1190
1191         IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
1192 #ifdef CONFIG_IWL4965_HT
1193         if (index != -1) {
1194                 int freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1195                 if (tid != MAX_TID_COUNT)
1196                         priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1197                 if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
1198                         (txq_id >= 0) && priv->mac80211_registered)
1199                         ieee80211_wake_queue(priv->hw, txq_id);
1200                 if (tid != MAX_TID_COUNT)
1201                         iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
1202         }
1203         }
1204 #endif /* CONFIG_IWL4965_HT */
1205
1206         if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
1207                 IWL_ERROR("TODO:  Implement Tx ABORT REQUIRED!!!\n");
1208 }
1209
1210 /* Currently 5000 is the supperset of everything */
1211 static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len)
1212 {
1213         return len;
1214 }
1215
1216 static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
1217 {
1218         /* init calibration handlers */
1219         priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
1220                                         iwl5000_rx_calib_result;
1221         priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
1222                                         iwl5000_rx_calib_complete;
1223         priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx;
1224 }
1225
1226
1227 static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
1228 {
1229         return (addr >= RTC_DATA_LOWER_BOUND) &&
1230                 (addr < IWL50_RTC_DATA_UPPER_BOUND);
1231 }
1232
1233 static struct iwl_hcmd_ops iwl5000_hcmd = {
1234 };
1235
1236 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
1237         .get_hcmd_size = iwl5000_get_hcmd_size,
1238         .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
1239 #ifdef CONFIG_IWL5000_RUN_TIME_CALIB
1240         .gain_computation = iwl5000_gain_computation,
1241         .chain_noise_reset = iwl5000_chain_noise_reset,
1242 #endif
1243 };
1244
1245 static struct iwl_lib_ops iwl5000_lib = {
1246         .set_hw_params = iwl5000_hw_set_hw_params,
1247         .alloc_shared_mem = iwl5000_alloc_shared_mem,
1248         .free_shared_mem = iwl5000_free_shared_mem,
1249         .shared_mem_rx_idx = iwl5000_shared_mem_rx_idx,
1250         .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
1251         .txq_set_sched = iwl5000_txq_set_sched,
1252         .rx_handler_setup = iwl5000_rx_handler_setup,
1253         .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
1254         .load_ucode = iwl5000_load_ucode,
1255         .init_alive_start = iwl5000_init_alive_start,
1256         .alive_notify = iwl5000_alive_notify,
1257         .apm_ops = {
1258                 .init = iwl5000_apm_init,
1259                 .reset = iwl5000_apm_reset,
1260                 .stop = iwl5000_apm_stop,
1261                 .config = iwl5000_nic_config,
1262                 .set_pwr_src = iwl4965_set_pwr_src,
1263         },
1264         .eeprom_ops = {
1265                 .regulatory_bands = {
1266                         EEPROM_5000_REG_BAND_1_CHANNELS,
1267                         EEPROM_5000_REG_BAND_2_CHANNELS,
1268                         EEPROM_5000_REG_BAND_3_CHANNELS,
1269                         EEPROM_5000_REG_BAND_4_CHANNELS,
1270                         EEPROM_5000_REG_BAND_5_CHANNELS,
1271                         EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
1272                         EEPROM_5000_REG_BAND_52_FAT_CHANNELS
1273                 },
1274                 .verify_signature  = iwlcore_eeprom_verify_signature,
1275                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
1276                 .release_semaphore = iwlcore_eeprom_release_semaphore,
1277                 .check_version  = iwl5000_eeprom_check_version,
1278                 .query_addr = iwl5000_eeprom_query_addr,
1279         },
1280 };
1281
1282 static struct iwl_ops iwl5000_ops = {
1283         .lib = &iwl5000_lib,
1284         .hcmd = &iwl5000_hcmd,
1285         .utils = &iwl5000_hcmd_utils,
1286 };
1287
1288 static struct iwl_mod_params iwl50_mod_params = {
1289         .num_of_queues = IWL50_NUM_QUEUES,
1290         .enable_qos = 1,
1291         .amsdu_size_8K = 1,
1292         .restart_fw = 1,
1293         /* the rest are 0 by default */
1294 };
1295
1296
1297 struct iwl_cfg iwl5300_agn_cfg = {
1298         .name = "5300AGN",
1299         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1300         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1301         .ops = &iwl5000_ops,
1302         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1303         .mod_params = &iwl50_mod_params,
1304 };
1305
1306 struct iwl_cfg iwl5100_agn_cfg = {
1307         .name = "5100AGN",
1308         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1309         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1310         .ops = &iwl5000_ops,
1311         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1312         .mod_params = &iwl50_mod_params,
1313 };
1314
1315 struct iwl_cfg iwl5350_agn_cfg = {
1316         .name = "5350AGN",
1317         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
1318         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1319         .ops = &iwl5000_ops,
1320         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1321         .mod_params = &iwl50_mod_params,
1322 };
1323
1324 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
1325 MODULE_PARM_DESC(disable50,
1326                   "manually disable the 50XX radio (default 0 [radio on])");
1327 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
1328 MODULE_PARM_DESC(swcrypto50,
1329                   "using software crypto engine (default 0 [hardware])\n");
1330 module_param_named(debug50, iwl50_mod_params.debug, int, 0444);
1331 MODULE_PARM_DESC(debug50, "50XX debug output mask");
1332 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
1333 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
1334 module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
1335 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
1336 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
1337 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
1338 module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
1339 MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");