drivers/net/wireless/iwlwifi/iwl-eeprom.h

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called LICENSE.GPL.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *****************************************************************************/
  62
  63 #ifndef __iwl_eeprom_h__
  64 #define __iwl_eeprom_h__
  65
  66 #include <net/mac80211.h>
  67
  68 struct iwl_priv;
  69
  70 /*
  71  * EEPROM access time values:
  72  *
  73  * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
  74  * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
  75  * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
  76  * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
  77  */
  78 #define IWL_EEPROM_ACCESS_TIMEOUT       5000 /* uSec */
  79
  80 #define IWL_EEPROM_SEM_TIMEOUT          10   /* microseconds */
  81 #define IWL_EEPROM_SEM_RETRY_LIMIT      1000 /* number of attempts (not time) */
  82
  83
  84 /*
  85  * Regulatory channel usage flags in EEPROM struct iwl4965_eeprom_channel.flags.
  86  *
  87  * IBSS and/or AP operation is allowed *only* on those channels with
  88  * (VALID && IBSS && ACTIVE && !RADAR).  This restriction is in place because
  89  * RADAR detection is not supported by the 4965 driver, but is a
  90  * requirement for establishing a new network for legal operation on channels
  91  * requiring RADAR detection or restricting ACTIVE scanning.
  92  *
  93  * NOTE:  "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
  94  *        It only indicates that 20 MHz channel use is supported; HT40 channel
  95  *        usage is indicated by a separate set of regulatory flags for each
  96  *        HT40 channel pair.
  97  *
  98  * NOTE:  Using a channel inappropriately will result in a uCode error!
  99  */
 100 #define IWL_NUM_TX_CALIB_GROUPS 5
 101 enum {
 102         EEPROM_CHANNEL_VALID = (1 << 0),        /* usable for this SKU/geo */
 103         EEPROM_CHANNEL_IBSS = (1 << 1),         /* usable as an IBSS channel */
 104         /* Bit 2 Reserved */
 105         EEPROM_CHANNEL_ACTIVE = (1 << 3),       /* active scanning allowed */
 106         EEPROM_CHANNEL_RADAR = (1 << 4),        /* radar detection required */
 107         EEPROM_CHANNEL_WIDE = (1 << 5),         /* 20 MHz channel okay */
 108         /* Bit 6 Reserved (was Narrow Channel) */
 109         EEPROM_CHANNEL_DFS = (1 << 7),  /* dynamic freq selection candidate */
 110 };
 111
 112 /* SKU Capabilities */
 113 #define EEPROM_SKU_CAP_BAND_24GHZ                       (1 << 4)
 114 #define EEPROM_SKU_CAP_BAND_52GHZ                       (1 << 5)
 115 #define EEPROM_SKU_CAP_11N_ENABLE                       (1 << 6)
 116 #define EEPROM_SKU_CAP_AMT_ENABLE                       (1 << 7)
 117 #define EEPROM_SKU_CAP_IPAN_ENABLE                      (1 << 8)
 118
 119 /* *regulatory* channel data format in eeprom, one for each channel.
 120  * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
 121 struct iwl_eeprom_channel {
 122         u8 flags;               /* EEPROM_CHANNEL_* flags copied from EEPROM */
 123         s8 max_power_avg;       /* max power (dBm) on this chnl, limit 31 */
 124 } __packed;
 125
 126 enum iwl_eeprom_enhanced_txpwr_flags {
 127         IWL_EEPROM_ENH_TXP_FL_VALID             = BIT(0),
 128         IWL_EEPROM_ENH_TXP_FL_BAND_52G          = BIT(1),
 129         IWL_EEPROM_ENH_TXP_FL_OFDM              = BIT(2),
 130         IWL_EEPROM_ENH_TXP_FL_40MHZ             = BIT(3),
 131         IWL_EEPROM_ENH_TXP_FL_HT_AP             = BIT(4),
 132         IWL_EEPROM_ENH_TXP_FL_RES1              = BIT(5),
 133         IWL_EEPROM_ENH_TXP_FL_RES2              = BIT(6),
 134         IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE       = BIT(7),
 135 };
 136
 137 /**
 138  * iwl_eeprom_enhanced_txpwr structure
 139  *    This structure presents the enhanced regulatory tx power limit layout
 140  *    in eeprom image
 141  *    Enhanced regulatory tx power portion of eeprom image can be broken down
 142  *    into individual structures; each one is 8 bytes in size and contain the
 143  *    following information
 144  * @flags: entry flags
 145  * @channel: channel number
 146  * @chain_a_max_pwr: chain a max power in 1/2 dBm
 147  * @chain_b_max_pwr: chain b max power in 1/2 dBm
 148  * @chain_c_max_pwr: chain c max power in 1/2 dBm
 149  * @delta_20_in_40: 20-in-40 deltas (hi/lo)
 150  * @mimo2_max_pwr: mimo2 max power in 1/2 dBm
 151  * @mimo3_max_pwr: mimo3 max power in 1/2 dBm
 152  *
 153  */
 154 struct iwl_eeprom_enhanced_txpwr {
 155         u8 flags;
 156         u8 channel;
 157         s8 chain_a_max;
 158         s8 chain_b_max;
 159         s8 chain_c_max;
 160         u8 delta_20_in_40;
 161         s8 mimo2_max;
 162         s8 mimo3_max;
 163 } __packed;
 164
 165 /* calibration */
 166 struct iwl_eeprom_calib_hdr {
 167         u8 version;
 168         u8 pa_type;
 169         __le16 voltage;
 170 } __packed;
 171
 172 #define EEPROM_CALIB_ALL        (INDIRECT_ADDRESS | INDIRECT_CALIBRATION)
 173 #define EEPROM_XTAL             ((2*0x128) | EEPROM_CALIB_ALL)
 174
 175 /* temperature */
 176 #define EEPROM_KELVIN_TEMPERATURE       ((2*0x12A) | EEPROM_CALIB_ALL)
 177 #define EEPROM_RAW_TEMPERATURE          ((2*0x12B) | EEPROM_CALIB_ALL)
 178
 179
 180 /* agn links */
 181 #define EEPROM_LINK_HOST             (2*0x64)
 182 #define EEPROM_LINK_GENERAL          (2*0x65)
 183 #define EEPROM_LINK_REGULATORY       (2*0x66)
 184 #define EEPROM_LINK_CALIBRATION      (2*0x67)
 185 #define EEPROM_LINK_PROCESS_ADJST    (2*0x68)
 186 #define EEPROM_LINK_OTHERS           (2*0x69)
 187 #define EEPROM_LINK_TXP_LIMIT        (2*0x6a)
 188 #define EEPROM_LINK_TXP_LIMIT_SIZE   (2*0x6b)
 189
 190 /* agn regulatory - indirect access */
 191 #define EEPROM_REG_BAND_1_CHANNELS       ((0x08)\
 192                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 28 bytes */
 193 #define EEPROM_REG_BAND_2_CHANNELS       ((0x26)\
 194                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 26 bytes */
 195 #define EEPROM_REG_BAND_3_CHANNELS       ((0x42)\
 196                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 24 bytes */
 197 #define EEPROM_REG_BAND_4_CHANNELS       ((0x5C)\
 198                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22 bytes */
 199 #define EEPROM_REG_BAND_5_CHANNELS       ((0x74)\
 200                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 12 bytes */
 201 #define EEPROM_REG_BAND_24_HT40_CHANNELS  ((0x82)\
 202                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 14  bytes */
 203 #define EEPROM_REG_BAND_52_HT40_CHANNELS  ((0x92)\
 204                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 22  bytes */
 205
 206 /* 6000 regulatory - indirect access */
 207 #define EEPROM_6000_REG_BAND_24_HT40_CHANNELS  ((0x80)\
 208                 | INDIRECT_ADDRESS | INDIRECT_REGULATORY)   /* 14  bytes */
 209
 210 /* 5000 Specific */
 211 #define EEPROM_5000_TX_POWER_VERSION    (4)
 212 #define EEPROM_5000_EEPROM_VERSION      (0x11A)
 213
 214 /* 5050 Specific */
 215 #define EEPROM_5050_TX_POWER_VERSION    (4)
 216 #define EEPROM_5050_EEPROM_VERSION      (0x21E)
 217
 218 /* 1000 Specific */
 219 #define EEPROM_1000_TX_POWER_VERSION    (4)
 220 #define EEPROM_1000_EEPROM_VERSION      (0x15C)
 221
 222 /* 6x00 Specific */
 223 #define EEPROM_6000_TX_POWER_VERSION    (4)
 224 #define EEPROM_6000_EEPROM_VERSION      (0x423)
 225
 226 /* 6x50 Specific */
 227 #define EEPROM_6050_TX_POWER_VERSION    (4)
 228 #define EEPROM_6050_EEPROM_VERSION      (0x532)
 229
 230 /* 6150 Specific */
 231 #define EEPROM_6150_TX_POWER_VERSION    (6)
 232 #define EEPROM_6150_EEPROM_VERSION      (0x553)
 233
 234 /* 6x05 Specific */
 235 #define EEPROM_6005_TX_POWER_VERSION    (6)
 236 #define EEPROM_6005_EEPROM_VERSION      (0x709)
 237
 238 /* 6x30 Specific */
 239 #define EEPROM_6030_TX_POWER_VERSION    (6)
 240 #define EEPROM_6030_EEPROM_VERSION      (0x709)
 241
 242 /* 2x00 Specific */
 243 #define EEPROM_2000_TX_POWER_VERSION    (6)
 244 #define EEPROM_2000_EEPROM_VERSION      (0x805)
 245
 246 /* 6x35 Specific */
 247 #define EEPROM_6035_TX_POWER_VERSION    (6)
 248 #define EEPROM_6035_EEPROM_VERSION      (0x753)
 249
 250
 251 /* OTP */
 252 /* lower blocks contain EEPROM image and calibration data */
 253 #define OTP_LOW_IMAGE_SIZE              (2 * 512 * sizeof(u16)) /* 2 KB */
 254 /* high blocks contain PAPD data */
 255 #define OTP_HIGH_IMAGE_SIZE_6x00        (6 * 512 * sizeof(u16)) /* 6 KB */
 256 #define OTP_HIGH_IMAGE_SIZE_1000        (0x200 * sizeof(u16)) /* 1024 bytes */
 257 #define OTP_MAX_LL_ITEMS_1000           (3)     /* OTP blocks for 1000 */
 258 #define OTP_MAX_LL_ITEMS_6x00           (4)     /* OTP blocks for 6x00 */
 259 #define OTP_MAX_LL_ITEMS_6x50           (7)     /* OTP blocks for 6x50 */
 260 #define OTP_MAX_LL_ITEMS_2x00           (4)     /* OTP blocks for 2x00 */
 261
 262 /* 2.4 GHz */
 263 extern const u8 iwl_eeprom_band_1[14];
 264
 265 #define ADDRESS_MSK                 0x0000FFFF
 266 #define INDIRECT_TYPE_MSK           0x000F0000
 267 #define INDIRECT_HOST               0x00010000
 268 #define INDIRECT_GENERAL            0x00020000
 269 #define INDIRECT_REGULATORY         0x00030000
 270 #define INDIRECT_CALIBRATION        0x00040000
 271 #define INDIRECT_PROCESS_ADJST      0x00050000
 272 #define INDIRECT_OTHERS             0x00060000
 273 #define INDIRECT_TXP_LIMIT          0x00070000
 274 #define INDIRECT_TXP_LIMIT_SIZE     0x00080000
 275 #define INDIRECT_ADDRESS            0x00100000
 276
 277 /* General */
 278 #define EEPROM_DEVICE_ID                    (2*0x08)    /* 2 bytes */
 279 #define EEPROM_SUBSYSTEM_ID                 (2*0x0A)    /* 2 bytes */
 280 #define EEPROM_MAC_ADDRESS                  (2*0x15)    /* 6  bytes */
 281 #define EEPROM_BOARD_REVISION               (2*0x35)    /* 2  bytes */
 282 #define EEPROM_BOARD_PBA_NUMBER             (2*0x3B+1)  /* 9  bytes */
 283 #define EEPROM_VERSION                      (2*0x44)    /* 2  bytes */
 284 #define EEPROM_SKU_CAP                      (2*0x45)    /* 2  bytes */
 285 #define EEPROM_OEM_MODE                     (2*0x46)    /* 2  bytes */
 286 #define EEPROM_RADIO_CONFIG                 (2*0x48)    /* 2  bytes */
 287 #define EEPROM_NUM_MAC_ADDRESS              (2*0x4C)    /* 2  bytes */
 288
 289 /* The following masks are to be applied on EEPROM_RADIO_CONFIG */
 290 #define EEPROM_RF_CFG_TYPE_MSK(x)   (x & 0x3)         /* bits 0-1   */
 291 #define EEPROM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) /* bits 2-3   */
 292 #define EEPROM_RF_CFG_DASH_MSK(x)   ((x >> 4)  & 0x3) /* bits 4-5   */
 293 #define EEPROM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) /* bits 6-7   */
 294 #define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) /* bits 8-11  */
 295 #define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
 296
 297 #define EEPROM_RF_CONFIG_TYPE_MAX       0x3
 298
 299 #define EEPROM_REGULATORY_BAND_NO_HT40                  (0)
 300
 301 struct iwl_eeprom_ops {
 302         const u32 regulatory_bands[7];
 303         void (*update_enhanced_txpower) (struct iwl_priv *priv);
 304 };
 305
 306
 307 int iwl_eeprom_init(struct iwl_priv *priv, u32 hw_rev);
 308 void iwl_eeprom_free(struct iwl_priv *priv);
 309 int  iwl_eeprom_check_version(struct iwl_priv *priv);
 310 int  iwl_eeprom_check_sku(struct iwl_priv *priv);
 311 const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset);
 312 u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset);
 313 int iwl_init_channel_map(struct iwl_priv *priv);
 314 void iwl_free_channel_map(struct iwl_priv *priv);
 315 const struct iwl_channel_info *iwl_get_channel_info(
 316                 const struct iwl_priv *priv,
 317                 enum ieee80211_band band, u16 channel);
 318 void iwl_rf_config(struct iwl_priv *priv);
 319
 320 #endif  /* __iwl_eeprom_h__ */