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-4965.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 int iwl5000_apm_init(struct iwl_priv *priv)
  50 {
  51         int ret = 0;
  52
  53         iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
  54                     CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
  55
  56         iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
  57
  58         /* set "initialization complete" bit to move adapter
  59          * D0U* --> D0A* state */
  60         iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
  61
  62         /* wait for clock stabilization */
  63         ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
  64                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
  65                           CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
  66         if (ret < 0) {
  67                 IWL_DEBUG_INFO("Failed to init the card\n");
  68                 return ret;
  69         }
  70
  71         ret = iwl_grab_nic_access(priv);
  72         if (ret)
  73                 return ret;
  74
  75         /* enable DMA */
  76         iwl_write_prph(priv, APMG_CLK_EN_REG,
  77                         APMG_CLK_VAL_DMA_CLK_RQT);
  78
  79         udelay(20);
  80
  81         iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
  82                         APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
  83
  84         iwl_release_nic_access(priv);
  85
  86         return ret;
  87 }
  88
  89 /*
  90  * EEPROM
  91  */
  92 static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
  93 {
  94         u16 offset = 0;
  95
  96         if ((address & INDIRECT_ADDRESS) == 0)
  97                 return address;
  98
  99         switch (address & INDIRECT_TYPE_MSK) {
 100         case INDIRECT_HOST:
 101                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST);
 102                 break;
 103         case INDIRECT_GENERAL:
 104                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL);
 105                 break;
 106         case INDIRECT_REGULATORY:
 107                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY);
 108                 break;
 109         case INDIRECT_CALIBRATION:
 110                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION);
 111                 break;
 112         case INDIRECT_PROCESS_ADJST:
 113                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST);
 114                 break;
 115         case INDIRECT_OTHERS:
 116                 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS);
 117                 break;
 118         default:
 119                 IWL_ERROR("illegal indirect type: 0x%X\n",
 120                 address & INDIRECT_TYPE_MSK);
 121                 break;
 122         }
 123
 124         /* translate the offset from words to byte */
 125         return (address & ADDRESS_MSK) + (offset << 1);
 126 }
 127
 128 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
 129                                            size_t offset)
 130 {
 131         u32 address = eeprom_indirect_address(priv, offset);
 132         BUG_ON(address >= priv->cfg->eeprom_size);
 133         return &priv->eeprom[address];
 134 }
 135
 136 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
 137 {
 138         if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
 139             (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
 140                 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
 141                           IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
 142                 return -EINVAL;
 143         }
 144
 145         priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
 146         priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
 147         priv->hw_params.tx_cmd_len = sizeof(struct iwl4965_tx_cmd);
 148         priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
 149         priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
 150         if (priv->cfg->mod_params->amsdu_size_8K)
 151                 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
 152         else
 153                 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
 154         priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
 155         priv->hw_params.max_stations = IWL5000_STATION_COUNT;
 156         priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
 157         priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
 158         priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
 159         priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
 160         priv->hw_params.fat_channel =  BIT(IEEE80211_BAND_2GHZ) |
 161                                         BIT(IEEE80211_BAND_5GHZ);
 162
 163         switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
 164         case CSR_HW_REV_TYPE_5100:
 165         case CSR_HW_REV_TYPE_5150:
 166                 priv->hw_params.tx_chains_num = 1;
 167                 priv->hw_params.rx_chains_num = 2;
 168                 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */
 169                 priv->hw_params.valid_tx_ant = IWL_ANTENNA_MAIN;
 170                 priv->hw_params.valid_rx_ant = (IWL_ANTENNA_MAIN |
 171                                                 IWL_ANTENNA_AUX);
 172                 break;
 173         case CSR_HW_REV_TYPE_5300:
 174         case CSR_HW_REV_TYPE_5350:
 175                 priv->hw_params.tx_chains_num = 3;
 176                 priv->hw_params.rx_chains_num = 3;
 177                 /* FIXME: move to ANT_A, ANT_B, ANT_C enum */
 178                 priv->hw_params.valid_tx_ant = (IWL_ANTENNA_MAIN |
 179                                                 IWL_ANTENNA_AUX | 0x04);
 180                 priv->hw_params.valid_rx_ant = (IWL_ANTENNA_MAIN |
 181                                                 IWL_ANTENNA_AUX | 0x04);
 182                 break;
 183         }
 184         return 0;
 185 }
 186 static struct iwl_hcmd_ops iwl5000_hcmd = {
 187 };
 188
 189 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
 190 };
 191
 192 static struct iwl_lib_ops iwl5000_lib = {
 193         .set_hw_params = iwl5000_hw_set_hw_params,
 194         .apm_ops = {
 195                 .init = iwl5000_apm_init,
 196                 .set_pwr_src = iwl4965_set_pwr_src,
 197         },
 198         .eeprom_ops = {
 199                 .regulatory_bands = {
 200                         EEPROM_5000_REG_BAND_1_CHANNELS,
 201                         EEPROM_5000_REG_BAND_2_CHANNELS,
 202                         EEPROM_5000_REG_BAND_3_CHANNELS,
 203                         EEPROM_5000_REG_BAND_4_CHANNELS,
 204                         EEPROM_5000_REG_BAND_5_CHANNELS,
 205                         EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
 206                         EEPROM_5000_REG_BAND_52_FAT_CHANNELS
 207                 },
 208                 .verify_signature  = iwlcore_eeprom_verify_signature,
 209                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 210                 .release_semaphore = iwlcore_eeprom_release_semaphore,
 211                 .query_addr = iwl5000_eeprom_query_addr,
 212         },
 213 };
 214
 215 static struct iwl_ops iwl5000_ops = {
 216         .lib = &iwl5000_lib,
 217         .hcmd = &iwl5000_hcmd,
 218         .utils = &iwl5000_hcmd_utils,
 219 };
 220
 221 static struct iwl_mod_params iwl50_mod_params = {
 222         .num_of_queues = IWL50_NUM_QUEUES,
 223         .enable_qos = 1,
 224         .amsdu_size_8K = 1,
 225         /* the rest are 0 by default */
 226 };
 227
 228
 229 struct iwl_cfg iwl5300_agn_cfg = {
 230         .name = "5300AGN",
 231         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 232         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 233         .ops = &iwl5000_ops,
 234         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 235         .mod_params = &iwl50_mod_params,
 236 };
 237
 238 struct iwl_cfg iwl5100_agn_cfg = {
 239         .name = "5100AGN",
 240         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 241         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 242         .ops = &iwl5000_ops,
 243         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 244         .mod_params = &iwl50_mod_params,
 245 };
 246
 247 struct iwl_cfg iwl5350_agn_cfg = {
 248         .name = "5350AGN",
 249         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 250         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 251         .ops = &iwl5000_ops,
 252         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 253         .mod_params = &iwl50_mod_params,
 254 };
 255
 256 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
 257 MODULE_PARM_DESC(disable50,
 258                   "manually disable the 50XX radio (default 0 [radio on])");
 259 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
 260 MODULE_PARM_DESC(swcrypto50,
 261                   "using software crypto engine (default 0 [hardware])\n");
 262 module_param_named(debug50, iwl50_mod_params.debug, int, 0444);
 263 MODULE_PARM_DESC(debug50, "50XX debug output mask");
 264 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
 265 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
 266 module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
 267 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
 268 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
 269 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
 270
 271