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 /* Hardware specific file defines the PCI IDs table for that hardware module */
  40 extern struct pci_device_id iwl3945_hw_card_ids[];
  41
  42 #include "iwl-csr.h"
  43 #include "iwl-prph.h"
  44 #include "iwl-fh.h"
  45 #include "iwl-3945-hw.h"
  46 #include "iwl-debug.h"
  47 #include "iwl-power.h"
  48 #include "iwl-dev.h"
  49 #include "iwl-3945-led.h"
  50
  51 /* Highest firmware API version supported */
  52 #define IWL3945_UCODE_API_MAX 2
  53
  54 /* Lowest firmware API version supported */
  55 #define IWL3945_UCODE_API_MIN 1
  56
  57 #define IWL3945_FW_PRE  "iwlwifi-3945-"
  58 #define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
  59 #define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
  60
  61 /* Default noise level to report when noise measurement is not available.
  62  *   This may be because we're:
  63  *   1)  Not associated (4965, no beacon statistics being sent to driver)
  64  *   2)  Scanning (noise measurement does not apply to associated channel)
  65  *   3)  Receiving CCK (3945 delivers noise info only for OFDM frames)
  66  * Use default noise value of -127 ... this is below the range of measurable
  67  *   Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
  68  *   Also, -127 works better than 0 when averaging frames with/without
  69  *   noise info (e.g. averaging might be done in app); measured dBm values are
  70  *   always negative ... using a negative value as the default keeps all
  71  *   averages within an s8's (used in some apps) range of negative values. */
  72 #define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
  73
  74 /* Module parameters accessible from iwl-*.c */
  75 extern struct iwl_mod_params iwl3945_mod_params;
  76
  77 struct iwl3945_sta_priv {
  78         struct iwl3945_rs_sta *rs_sta;
  79 };
  80
  81 enum iwl3945_antenna {
  82         IWL_ANTENNA_DIVERSITY,
  83         IWL_ANTENNA_MAIN,
  84         IWL_ANTENNA_AUX
  85 };
  86
  87 /*
  88  * RTS threshold here is total size [2347] minus 4 FCS bytes
  89  * Per spec:
  90  *   a value of 0 means RTS on all data/management packets
  91  *   a value > max MSDU size means no RTS
  92  * else RTS for data/management frames where MPDU is larger
  93  *   than RTS value.
  94  */
  95 #define DEFAULT_RTS_THRESHOLD     2347U
  96 #define MIN_RTS_THRESHOLD         0U
  97 #define MAX_RTS_THRESHOLD         2347U
  98 #define MAX_MSDU_SIZE             2304U
  99 #define MAX_MPDU_SIZE             2346U
 100 #define DEFAULT_BEACON_INTERVAL   100U
 101 #define DEFAULT_SHORT_RETRY_LIMIT 7U
 102 #define DEFAULT_LONG_RETRY_LIMIT  4U
 103
 104 #include "iwl-agn-rs.h"
 105
 106 #define IWL_TX_FIFO_AC0 0
 107 #define IWL_TX_FIFO_AC1 1
 108 #define IWL_TX_FIFO_AC2 2
 109 #define IWL_TX_FIFO_AC3 3
 110 #define IWL_TX_FIFO_HCCA_1      5
 111 #define IWL_TX_FIFO_HCCA_2      6
 112 #define IWL_TX_FIFO_NONE        7
 113
 114 #define IEEE80211_DATA_LEN              2304
 115 #define IEEE80211_4ADDR_LEN             30
 116 #define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 117 #define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 118
 119 struct iwl3945_frame {
 120         union {
 121                 struct ieee80211_hdr frame;
 122                 struct iwl3945_tx_beacon_cmd beacon;
 123                 u8 raw[IEEE80211_FRAME_LEN];
 124                 u8 cmd[360];
 125         } u;
 126         struct list_head list;
 127 };
 128
 129 #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 130 #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 131 #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 132
 133 /*
 134  * RX related structures and functions
 135  */
 136 #define RX_FREE_BUFFERS 64
 137 #define RX_LOW_WATERMARK 8
 138
 139 #define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 140 #define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 141 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 142
 143 #define IWL_SUPPORTED_RATES_IE_LEN         8
 144
 145 #define SCAN_INTERVAL 100
 146
 147 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 148 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 149 #define STATUS_INT_ENABLED      2
 150 #define STATUS_RF_KILL_HW       3
 151 #define STATUS_INIT             5
 152 #define STATUS_ALIVE            6
 153 #define STATUS_READY            7
 154 #define STATUS_TEMPERATURE      8
 155 #define STATUS_GEO_CONFIGURED   9
 156 #define STATUS_EXIT_PENDING     10
 157 #define STATUS_STATISTICS       12
 158 #define STATUS_SCANNING         13
 159 #define STATUS_SCAN_ABORTING    14
 160 #define STATUS_SCAN_HW          15
 161 #define STATUS_POWER_PMI        16
 162 #define STATUS_FW_ERROR         17
 163 #define STATUS_CONF_PENDING     18
 164
 165 #define MAX_TID_COUNT        9
 166
 167 #define IWL_INVALID_RATE     0xFF
 168 #define IWL_INVALID_VALUE    -1
 169
 170 #define STA_PS_STATUS_WAKE             0
 171 #define STA_PS_STATUS_SLEEP            1
 172
 173 struct iwl3945_ibss_seq {
 174         u8 mac[ETH_ALEN];
 175         u16 seq_num;
 176         u16 frag_num;
 177         unsigned long packet_time;
 178         struct list_head list;
 179 };
 180
 181 #define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 182                        x->u.rx_frame.stats.payload + \
 183                        x->u.rx_frame.stats.phy_count))
 184 #define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 185                        IWL_RX_HDR(x)->payload + \
 186                        le16_to_cpu(IWL_RX_HDR(x)->len)))
 187 #define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 188 #define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 189
 190
 191 /******************************************************************************
 192  *
 193  * Functions implemented in iwl-base.c which are forward declared here
 194  * for use by iwl-*.c
 195  *
 196  *****************************************************************************/
 197 extern int iwl3945_power_init_handle(struct iwl_priv *priv);
 198 extern int iwl3945_eeprom_init(struct iwl_priv *priv);
 199 extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 200 extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
 201 extern int iwl3945_tx_queue_init(struct iwl_priv *priv,
 202                              struct iwl_tx_queue *txq, int count, u32 id);
 203 extern void iwl3945_rx_replenish(void *data);
 204 extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 205 extern void iwl3945_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 206 extern int iwl3945_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
 207                             const void *data);
 208 extern int __must_check iwl3945_send_cmd(struct iwl_priv *priv,
 209                                          struct iwl_host_cmd *cmd);
 210 extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
 211                                         struct ieee80211_hdr *hdr,int left);
 212 extern void iwl3945_dump_nic_event_log(struct iwl_priv *priv);
 213 extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
 214
 215 /*
 216  * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
 217  * call this... todo... fix that.
 218 */
 219 extern u8 iwl3945_sync_station(struct iwl_priv *priv, int sta_id,
 220                            u16 tx_rate, u8 flags);
 221
 222 /******************************************************************************
 223  *
 224  * Functions implemented in iwl-[34]*.c which are forward declared here
 225  * for use by iwl-base.c
 226  *
 227  * NOTE:  The implementation of these functions are hardware specific
 228  * which is why they are in the hardware specific files (vs. iwl-base.c)
 229  *
 230  * Naming convention --
 231  * iwl3945_         <-- Its part of iwlwifi (should be changed to iwl3945_)
 232  * iwl3945_hw_      <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
 233  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
 234  * iwl3945_bg_      <-- Called from work queue context
 235  * iwl3945_mac_     <-- mac80211 callback
 236  *
 237  ****************************************************************************/
 238 extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
 239 extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
 240 extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
 241 extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
 242 extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
 243 extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
 244 extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
 245 extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
 246 extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
 247 extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
 248 extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 249                                             struct iwl_tx_queue *txq,
 250                                             dma_addr_t addr, u16 len,
 251                                             u8 reset, u8 pad);
 252 extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
 253                                     struct iwl_tx_queue *txq);
 254 extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
 255 extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
 256                                 struct iwl_tx_queue *txq);
 257 extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
 258                                  struct iwl3945_frame *frame, u8 rate);
 259 void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 260                                   struct iwl_device_cmd *cmd,
 261                                   struct ieee80211_tx_info *info,
 262                                   struct ieee80211_hdr *hdr,
 263                                   int sta_id, int tx_id);
 264 extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
 265 extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 266 extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 267                                  struct iwl_rx_mem_buffer *rxb);
 268 extern void iwl3945_disable_events(struct iwl_priv *priv);
 269 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 270 extern void iwl3945_post_associate(struct iwl_priv *priv);
 271 extern void iwl3945_config_ap(struct iwl_priv *priv);
 272
 273 /**
 274  * iwl3945_hw_find_station - Find station id for a given BSSID
 275  * @bssid: MAC address of station ID to find
 276  *
 277  * NOTE:  This should not be hardware specific but the code has
 278  * not yet been merged into a single common layer for managing the
 279  * station tables.
 280  */
 281 extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
 282
 283 extern int iwl3945_hw_channel_switch(struct iwl_priv *priv, u16 channel);
 284
 285 /*
 286  * Forward declare iwl-3945.c functions for iwl-base.c
 287  */
 288 extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
 289 extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
 290 extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
 291 extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
 292 extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
 293                  u16 tx_rate, u8 flags);
 294
 295 extern const struct iwl_channel_info *iwl3945_get_channel_info(
 296         const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
 297
 298 extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
 299
 300 /* Requires full declaration of iwl_priv before including */
 301 #include "iwl-io.h"
 302
 303 #endif