drivers/net/wireless/iwlwifi/iwl-3945.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2009 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 Linux Wireless <ilw@linux.intel.com>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  *****************************************************************************/
  26 /*
  27  * Please use this file (iwl-3945.h) for driver implementation definitions.
  28  * Please use iwl-3945-commands.h for uCode API definitions.
  29  * Please use iwl-3945-hw.h for hardware-related definitions.
  30  */
  31
  32 #ifndef __iwl_3945_h__
  33 #define __iwl_3945_h__
  34
  35 #include <linux/pci.h> /* for struct pci_device_id */
  36 #include <linux/kernel.h>
  37 #include <net/ieee80211_radiotap.h>
  38
  39 /*used for rfkill*/
  40 #include <linux/rfkill.h>
  41 #include <linux/input.h>
  42
  43 /* Hardware specific file defines the PCI IDs table for that hardware module */
  44 extern struct pci_device_id iwl3945_hw_card_ids[];
  45
  46 #include "iwl-csr.h"
  47 #include "iwl-prph.h"
  48 #include "iwl-fh.h"
  49 #include "iwl-3945-hw.h"
  50 #include "iwl-debug.h"
  51 #include "iwl-power.h"
  52 #include "iwl-dev.h"
  53 #include "iwl-3945-led.h"
  54
  55 /* Highest firmware API version supported */
  56 #define IWL3945_UCODE_API_MAX 2
  57
  58 /* Lowest firmware API version supported */
  59 #define IWL3945_UCODE_API_MIN 1
  60
  61 #define IWL3945_FW_PRE  "iwlwifi-3945-"
  62 #define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
  63 #define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
  64
  65 /* Default noise level to report when noise measurement is not available.
  66  *   This may be because we're:
  67  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  68  *   2)  Scanning (noise measurement does not apply to associated channel)
  69  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  70  * Use default noise value of -127 ... this is below the range of measurable
  71  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  72  *   Also, -127 works better than 0 when averaging frames with/without
  73  *   noise info (e.g. averaging might be done in app); measured dBm values are
  74  *   always negative ... using a negative value as the default keeps all
  75  *   averages within an s8's (used in some apps) range of negative values. */
  76 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  77
  78 /* Module parameters accessible from iwl-*.c */
  79 extern struct iwl_mod_params iwl3945_mod_params;
  80
  81 struct iwl3945_sta_priv {
  82         struct iwl3945_rs_sta *rs_sta;
  83 };
  84
  85 enum iwl3945_antenna {
  86         IWL_ANTENNA_DIVERSITY,
  87         IWL_ANTENNA_MAIN,
  88         IWL_ANTENNA_AUX
  89 };
  90
  91 /*
  92  * RTS threshold here is total size [2347] minus 4 FCS bytes
  93  * Per spec:
  94  *   a value of 0 means RTS on all data/management packets
  95  *   a value > max MSDU size means no RTS
  96  * else RTS for data/management frames where MPDU is larger
  97  *   than RTS value.
  98  */
  99 #define DEFAULT_RTS_THRESHOLD     2347U
 100 #define MIN_RTS_THRESHOLD         0U
 101 #define MAX_RTS_THRESHOLD         2347U
 102 #define MAX_MSDU_SIZE             2304U
 103 #define MAX_MPDU_SIZE             2346U
 104 #define DEFAULT_BEACON_INTERVAL   100U
 105 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 106 #define DEFAULT_LONG_RETRY_LIMIT  4U
 107
 108 #include "iwl-agn-rs.h"
 109
 110 #define IWL_TX_FIFO_AC0 0
 111 #define IWL_TX_FIFO_AC1 1
 112 #define IWL_TX_FIFO_AC2 2
 113 #define IWL_TX_FIFO_AC3 3
 114 #define IWL_TX_FIFO_HCCA_1      5
 115 #define IWL_TX_FIFO_HCCA_2      6
 116 #define IWL_TX_FIFO_NONE        7
 117
 118 /* Minimum number of queues. MAX_NUM is defined in hw specific files */
 119 #define IWL_MIN_NUM_QUEUES      4
 120
 121 #define IEEE80211_DATA_LEN              2304
 122 #define IEEE80211_4ADDR_LEN             30
 123 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 124 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 125
 126 struct iwl3945_frame {
 127         union {
 128                 struct ieee80211_hdr frame;
 129                 struct iwl3945_tx_beacon_cmd beacon;
 130                 u8 raw[IEEE80211_FRAME_LEN];
 131                 u8 cmd[360];
 132         } u;
 133         struct list_head list;
 134 };
 135
 136 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 137 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 138 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 139
 140 /*
 141  * RX related structures and functions
 142  */
 143 #define RX_FREE_BUFFERS 64
 144 #define RX_LOW_WATERMARK 8
 145
 146 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 147 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 148 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 149
 150 #define IWL_SUPPORTED_RATES_IE_LEN         8
 151
 152 #define SCAN_INTERVAL 100
 153
 154 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 155 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 156 #define STATUS_INT_ENABLED      2
 157 #define STATUS_RF_KILL_HW       3
 158 #define STATUS_RF_KILL_SW       4
 159 #define STATUS_INIT             5
 160 #define STATUS_ALIVE            6
 161 #define STATUS_READY            7
 162 #define STATUS_TEMPERATURE      8
 163 #define STATUS_GEO_CONFIGURED   9
 164 #define STATUS_EXIT_PENDING     10
 165 #define STATUS_STATISTICS       12
 166 #define STATUS_SCANNING         13
 167 #define STATUS_SCAN_ABORTING    14
 168 #define STATUS_SCAN_HW          15
 169 #define STATUS_POWER_PMI        16
 170 #define STATUS_FW_ERROR         17
 171 #define STATUS_CONF_PENDING     18
 172
 173 #define MAX_TID_COUNT        9
 174
 175 #define IWL_INVALID_RATE     0xFF
 176 #define IWL_INVALID_VALUE    -1
 177
 178 #define STA_PS_STATUS_WAKE             0
 179 #define STA_PS_STATUS_SLEEP            1
 180
 181 struct iwl3945_ibss_seq {
 182         u8 mac[ETH_ALEN];
 183         u16 seq_num;
 184         u16 frag_num;
 185         unsigned long packet_time;
 186         struct list_head list;
 187 };
 188
 189 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 190                        x->u.rx_frame.stats.payload + \
 191                        x->u.rx_frame.stats.phy_count))
 192 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 193                        IWL_RX_HDR(x)->payload + \
 194                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 195 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 196 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 197
 198
 199 /******************************************************************************
 200  *
 201  * Functions implemented in iwl-base.c which are forward declared here
 202  * for use by iwl-*.c
 203  *
 204  *****************************************************************************/
 205 struct iwl3945_addsta_cmd;
 206 extern int iwl3945_send_add_station(struct iwl_priv *priv,
 207                                 struct iwl3945_addsta_cmd *sta, u8 flags);
 208 extern u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *bssid,
 209                           int is_ap, u8 flags, struct ieee80211_sta_ht_cap *ht_info);
 210 extern void iwl3945_clear_stations_table(struct iwl_priv *priv);
 211 extern int iwl3945_power_init_handle(struct iwl_priv *priv);
 212 extern int iwl3945_eeprom_init(struct iwl_priv *priv);
 213 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 214 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 215 extern int iwl3945_tx_queue_init(struct iwl_priv *priv,
 216                              struct iwl_tx_queue *txq, int count, u32 id);
 217 extern void iwl3945_rx_replenish(void *data);
 218 extern void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 219 extern int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
 220                             const void *data);
 221 extern int __must_check iwl3945_send_cmd(struct iwl_priv *priv,
 222                                          struct iwl_host_cmd *cmd);
 223 extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
 224                                         struct ieee80211_hdr *hdr,int left);
 225
 226 /*
 227  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 228  * call this... todo... fix that.
 229 */
 230 extern u8 iwl3945_sync_station(struct iwl_priv *priv, int sta_id,
 231                            u16 tx_rate, u8 flags);
 232
 233 /******************************************************************************
 234  *
 235  * Functions implemented in iwl-[34]*.c which are forward declared here
 236  * for use by iwl-base.c
 237  *
 238  * NOTE:  The implementation of these functions are hardware specific
 239  * which is why they are in the hardware specific files (vs. iwl-base.c)
 240  *
 241  * Naming convention --
 242  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 243  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 244  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 245  * iwl3945_bg_      <-- Called from work queue context
 246  * iwl3945_mac_     <-- mac80211 callback
 247  *
 248  ****************************************************************************/
 249 extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
 250 extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
 251 extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
 252 extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
 253 extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
 254 extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
 255 extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
 256 extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
 257 extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
 258 extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
 259 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 260                                             struct iwl_tx_queue *txq,
 261                                             dma_addr_t addr, u16 len,
 262                                             u8 reset, u8 pad);
 263 extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
 264                                     struct iwl_tx_queue *txq);
 265 extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
 266 extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
 267                                 struct iwl_tx_queue *txq);
 268 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
 269                                  struct iwl3945_frame *frame, u8 rate);
 270 void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv, struct iwl_cmd *cmd,
 271                                      struct ieee80211_tx_info *info,
 272                                      struct ieee80211_hdr *hdr,
 273                                      int sta_id, int tx_id);
 274 extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
 275 extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 276 extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 277                                  struct iwl_rx_mem_buffer *rxb);
 278 extern void iwl3945_disable_events(struct iwl_priv *priv);
 279 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 280 extern void iwl3945_post_associate(struct iwl_priv *priv);
 281 extern void iwl3945_config_ap(struct iwl_priv *priv);
 282
 283 /**
 284  * iwl3945_hw_find_station - Find station id for a given BSSID
 285  * @bssid: MAC address of station ID to find
 286  *
 287  * NOTE:  This should not be hardware specific but the code has
 288  * not yet been merged into a single common layer for managing the
 289  * station tables.
 290  */
 291 extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
 292
 293 extern int iwl3945_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 294
 295 /*
 296  * Forward declare iwl-3945.c functions for iwl-base.c
 297  */
 298 extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
 299 extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
 300 extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
 301 extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
 302 extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
 303                  u16 tx_rate, u8 flags);
 304
 305 extern const struct iwl_channel_info *iwl3945_get_channel_info(
 306         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
 307
 308 extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
 309
 310 /* Requires full declaration of iwl_priv before including */
 311 #include "iwl-io.h"
 312
 313 #endif