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
 137
 138 static struct iwl_hcmd_ops iwl5000_hcmd = {
 139 };
 140
 141 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
 142 };
 143
 144 static struct iwl_lib_ops iwl5000_lib = {
 145         .apm_ops = {
 146                 .init = iwl5000_apm_init,
 147                 .set_pwr_src = iwl4965_set_pwr_src,
 148         },
 149         .eeprom_ops = {
 150                 .regulatory_bands = {
 151                         EEPROM_5000_REG_BAND_1_CHANNELS,
 152                         EEPROM_5000_REG_BAND_2_CHANNELS,
 153                         EEPROM_5000_REG_BAND_3_CHANNELS,
 154                         EEPROM_5000_REG_BAND_4_CHANNELS,
 155                         EEPROM_5000_REG_BAND_5_CHANNELS,
 156                         EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
 157                         EEPROM_5000_REG_BAND_52_FAT_CHANNELS
 158                 },
 159                 .verify_signature  = iwlcore_eeprom_verify_signature,
 160                 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
 161                 .release_semaphore = iwlcore_eeprom_release_semaphore,
 162                 .query_addr = iwl5000_eeprom_query_addr,
 163         },
 164 };
 165
 166 static struct iwl_ops iwl5000_ops = {
 167         .lib = &iwl5000_lib,
 168         .hcmd = &iwl5000_hcmd,
 169         .utils = &iwl5000_hcmd_utils,
 170 };
 171
 172 static struct iwl_mod_params iwl50_mod_params = {
 173         .num_of_queues = IWL50_NUM_QUEUES,
 174         .enable_qos = 1,
 175         .amsdu_size_8K = 1,
 176         /* the rest are 0 by default */
 177 };
 178
 179
 180 struct iwl_cfg iwl5300_agn_cfg = {
 181         .name = "5300AGN",
 182         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 183         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 184         .ops = &iwl5000_ops,
 185         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 186         .mod_params = &iwl50_mod_params,
 187 };
 188
 189 struct iwl_cfg iwl5100_agn_cfg = {
 190         .name = "5100AGN",
 191         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 192         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 193         .ops = &iwl5000_ops,
 194         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 195         .mod_params = &iwl50_mod_params,
 196 };
 197
 198 struct iwl_cfg iwl5350_agn_cfg = {
 199         .name = "5350AGN",
 200         .fw_name = "iwlwifi-5000" IWL5000_UCODE_API ".ucode",
 201         .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
 202         .ops = &iwl5000_ops,
 203         .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
 204         .mod_params = &iwl50_mod_params,
 205 };
 206
 207 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
 208 MODULE_PARM_DESC(disable50,
 209                   "manually disable the 50XX radio (default 0 [radio on])");
 210 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
 211 MODULE_PARM_DESC(swcrypto50,
 212                   "using software crypto engine (default 0 [hardware])\n");
 213 module_param_named(debug50, iwl50_mod_params.debug, int, 0444);
 214 MODULE_PARM_DESC(debug50, "50XX debug output mask");
 215 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
 216 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
 217 module_param_named(qos_enable50, iwl50_mod_params.enable_qos, int, 0444);
 218 MODULE_PARM_DESC(qos_enable50, "enable all 50XX QoS functionality");
 219 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
 220 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
 221
 222