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

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2003 - 2010 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 */
  40extern const 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-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 */
  75extern struct iwl_mod_params iwl3945_mod_params;
  76
  77struct iwl3945_rate_scale_data {
  78        u64 data;
  79        s32 success_counter;
  80        s32 success_ratio;
  81        s32 counter;
  82        s32 average_tpt;
  83        unsigned long stamp;
  84};
  85
  86struct iwl3945_rs_sta {
  87        spinlock_t lock;
  88        struct iwl_priv *priv;
  89        s32 *expected_tpt;
  90        unsigned long last_partial_flush;
  91        unsigned long last_flush;
  92        u32 flush_time;
  93        u32 last_tx_packets;
  94        u32 tx_packets;
  95        u8 tgg;
  96        u8 flush_pending;
  97        u8 start_rate;
  98        u8 ibss_sta_added;
  99        struct timer_list rate_scale_flush;
 100        struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
 101#ifdef CONFIG_MAC80211_DEBUGFS
 102        struct dentry *rs_sta_dbgfs_stats_table_file;
 103#endif
 104
 105        /* used to be in sta_info */
 106        int last_txrate_idx;
 107};
 108
 109
 110struct iwl3945_sta_priv {
 111        struct iwl3945_rs_sta rs_sta;
 112};
 113
 114enum iwl3945_antenna {
 115        IWL_ANTENNA_DIVERSITY,
 116        IWL_ANTENNA_MAIN,
 117        IWL_ANTENNA_AUX
 118};
 119
 120/*
 121 * RTS threshold here is total size [2347] minus 4 FCS bytes
 122 * Per spec:
 123 *   a value of 0 means RTS on all data/management packets
 124 *   a value > max MSDU size means no RTS
 125 * else RTS for data/management frames where MPDU is larger
 126 *   than RTS value.
 127 */
 128#define DEFAULT_RTS_THRESHOLD     2347U
 129#define MIN_RTS_THRESHOLD         0U
 130#define MAX_RTS_THRESHOLD         2347U
 131#define MAX_MSDU_SIZE             2304U
 132#define MAX_MPDU_SIZE             2346U
 133#define DEFAULT_BEACON_INTERVAL   100U
 134#define DEFAULT_SHORT_RETRY_LIMIT 7U
 135#define DEFAULT_LONG_RETRY_LIMIT  4U
 136
 137#include "iwl-agn-rs.h"
 138
 139#define IWL_TX_FIFO_AC0 0
 140#define IWL_TX_FIFO_AC1 1
 141#define IWL_TX_FIFO_AC2 2
 142#define IWL_TX_FIFO_AC3 3
 143#define IWL_TX_FIFO_HCCA_1      5
 144#define IWL_TX_FIFO_HCCA_2      6
 145#define IWL_TX_FIFO_NONE        7
 146
 147#define IEEE80211_DATA_LEN              2304
 148#define IEEE80211_4ADDR_LEN             30
 149#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
 150#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
 151
 152struct iwl3945_frame {
 153        union {
 154                struct ieee80211_hdr frame;
 155                struct iwl3945_tx_beacon_cmd beacon;
 156                u8 raw[IEEE80211_FRAME_LEN];
 157                u8 cmd[360];
 158        } u;
 159        struct list_head list;
 160};
 161
 162#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 163#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 164#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
 165
 166#define SUP_RATE_11A_MAX_NUM_CHANNELS  8
 167#define SUP_RATE_11B_MAX_NUM_CHANNELS  4
 168#define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 169
 170#define IWL_SUPPORTED_RATES_IE_LEN         8
 171
 172#define SCAN_INTERVAL 100
 173
 174#define MAX_TID_COUNT        9
 175
 176#define IWL_INVALID_RATE     0xFF
 177#define IWL_INVALID_VALUE    -1
 178
 179#define STA_PS_STATUS_WAKE             0
 180#define STA_PS_STATUS_SLEEP            1
 181
 182struct iwl3945_ibss_seq {
 183        u8 mac[ETH_ALEN];
 184        u16 seq_num;
 185        u16 frag_num;
 186        unsigned long packet_time;
 187        struct list_head list;
 188};
 189
 190#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
 191                       x->u.rx_frame.stats.payload + \
 192                       x->u.rx_frame.stats.phy_count))
 193#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
 194                       IWL_RX_HDR(x)->payload + \
 195                       le16_to_cpu(IWL_RX_HDR(x)->len)))
 196#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
 197#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
 198
 199
 200/******************************************************************************
 201 *
 202 * Functions implemented in iwl-base.c which are forward declared here
 203 * for use by iwl-*.c
 204 *
 205 *****************************************************************************/
 206extern int iwl3945_calc_db_from_ratio(int sig_ratio);
 207extern void iwl3945_rx_replenish(void *data);
 208extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 209extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
 210                                        struct ieee80211_hdr *hdr,int left);
 211extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
 212                                       char **buf, bool display);
 213extern 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*/
 219extern 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 ****************************************************************************/
 238extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
 239extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
 240extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
 241extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
 242extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
 243extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
 244extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
 245extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
 246extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
 247extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
 248extern 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);
 252extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
 253                                    struct iwl_tx_queue *txq);
 254extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
 255extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
 256                                struct iwl_tx_queue *txq);
 257extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
 258                                 struct iwl3945_frame *frame, u8 rate);
 259void 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);
 264extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
 265extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 266extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 267                                 struct iwl_rx_mem_buffer *rxb);
 268extern void iwl3945_disable_events(struct iwl_priv *priv);
 269extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 270extern void iwl3945_post_associate(struct iwl_priv *priv);
 271extern 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 */
 281extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
 282
 283/*
 284 * Forward declare iwl-3945.c functions for iwl-base.c
 285 */
 286extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
 287extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
 288extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
 289extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
 290extern u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id,
 291                 u16 tx_rate, u8 flags);
 292
 293extern const struct iwl_channel_info *iwl3945_get_channel_info(
 294        const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
 295
 296extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
 297
 298/* Requires full declaration of iwl_priv before including */
 299#include "iwl-io.h"
 300
 301#endif
 302