drivers/net/wireless/rsi/rsi_main.h

   1 /**
   2  * Copyright (c) 2014 Redpine Signals Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef __RSI_MAIN_H__
  18 #define __RSI_MAIN_H__
  19
  20 #include <linux/string.h>
  21 #include <linux/skbuff.h>
  22 #include <net/mac80211.h>
  23 #include <net/rsi_91x.h>
  24
  25 struct rsi_sta {
  26         struct ieee80211_sta *sta;
  27         s16 sta_id;
  28         u16 seq_start[IEEE80211_NUM_TIDS];
  29         bool start_tx_aggr[IEEE80211_NUM_TIDS];
  30 };
  31
  32 struct rsi_hw;
  33
  34 #include "rsi_ps.h"
  35
  36 #define ERR_ZONE                        BIT(0)  /* For Error Msgs             */
  37 #define INFO_ZONE                       BIT(1)  /* For General Status Msgs    */
  38 #define INIT_ZONE                       BIT(2)  /* For Driver Init Seq Msgs   */
  39 #define MGMT_TX_ZONE                    BIT(3)  /* For TX Mgmt Path Msgs      */
  40 #define MGMT_RX_ZONE                    BIT(4)  /* For RX Mgmt Path Msgs      */
  41 #define DATA_TX_ZONE                    BIT(5)  /* For TX Data Path Msgs      */
  42 #define DATA_RX_ZONE                    BIT(6)  /* For RX Data Path Msgs      */
  43 #define FSM_ZONE                        BIT(7)  /* For State Machine Msgs     */
  44 #define ISR_ZONE                        BIT(8)  /* For Interrupt Msgs         */
  45
  46 enum RSI_FSM_STATES {
  47         FSM_FW_NOT_LOADED,
  48         FSM_CARD_NOT_READY,
  49         FSM_COMMON_DEV_PARAMS_SENT,
  50         FSM_BOOT_PARAMS_SENT,
  51         FSM_EEPROM_READ_MAC_ADDR,
  52         FSM_EEPROM_READ_RF_TYPE,
  53         FSM_RESET_MAC_SENT,
  54         FSM_RADIO_CAPS_SENT,
  55         FSM_BB_RF_PROG_SENT,
  56         FSM_MAC_INIT_DONE,
  57
  58         NUM_FSM_STATES
  59 };
  60
  61 extern u32 rsi_zone_enabled;
  62 extern __printf(2, 3) void rsi_dbg(u32 zone, const char *fmt, ...);
  63
  64 #define RSI_MAX_VIFS                    3
  65 #define NUM_EDCA_QUEUES                 4
  66 #define IEEE80211_ADDR_LEN              6
  67 #define FRAME_DESC_SZ                   16
  68 #define MIN_802_11_HDR_LEN              24
  69 #define RSI_DEF_KEEPALIVE               90
  70 #define RSI_WOW_KEEPALIVE                5
  71 #define RSI_BCN_MISS_THRESHOLD           24
  72
  73 #define DATA_QUEUE_WATER_MARK           400
  74 #define MIN_DATA_QUEUE_WATER_MARK       300
  75 #define MULTICAST_WATER_MARK            200
  76 #define MAC_80211_HDR_FRAME_CONTROL     0
  77 #define WME_NUM_AC                      4
  78 #define NUM_SOFT_QUEUES                 6
  79 #define MAX_HW_QUEUES                   12
  80 #define INVALID_QUEUE                   0xff
  81 #define MAX_CONTINUOUS_VO_PKTS          8
  82 #define MAX_CONTINUOUS_VI_PKTS          4
  83
  84 /* Hardware queue info */
  85 #define BROADCAST_HW_Q                  9
  86 #define MGMT_HW_Q                       10
  87 #define BEACON_HW_Q                     11
  88
  89 #define IEEE80211_MGMT_FRAME            0x00
  90 #define IEEE80211_CTL_FRAME             0x04
  91
  92 #define RSI_MAX_ASSOC_STAS              32
  93 #define IEEE80211_QOS_TID               0x0f
  94 #define IEEE80211_NONQOS_TID            16
  95
  96 #define MAX_DEBUGFS_ENTRIES             4
  97
  98 #define TID_TO_WME_AC(_tid) (      \
  99         ((_tid) == 0 || (_tid) == 3) ? BE_Q : \
 100         ((_tid) < 3) ? BK_Q : \
 101         ((_tid) < 6) ? VI_Q : \
 102         VO_Q)
 103
 104 #define WME_AC(_q) (    \
 105         ((_q) == BK_Q) ? IEEE80211_AC_BK : \
 106         ((_q) == BE_Q) ? IEEE80211_AC_BE : \
 107         ((_q) == VI_Q) ? IEEE80211_AC_VI : \
 108         IEEE80211_AC_VO)
 109
 110 /* WoWLAN flags */
 111 #define RSI_WOW_ENABLED                 BIT(0)
 112 #define RSI_WOW_NO_CONNECTION           BIT(1)
 113
 114 #define RSI_DEV_9113            1
 115 #define RSI_MAX_RX_PKTS         64
 116
 117 struct version_info {
 118         u16 major;
 119         u16 minor;
 120         u8 release_num;
 121         u8 patch_num;
 122         union {
 123                 struct {
 124                         u8 fw_ver[8];
 125                 } info;
 126         } ver;
 127 } __packed;
 128
 129 struct skb_info {
 130         s8 rssi;
 131         u32 flags;
 132         u16 channel;
 133         s8 tid;
 134         s8 sta_id;
 135         u8 internal_hdr_size;
 136         struct ieee80211_vif *vif;
 137         u8 vap_id;
 138 };
 139
 140 enum edca_queue {
 141         BK_Q,
 142         BE_Q,
 143         VI_Q,
 144         VO_Q,
 145         MGMT_SOFT_Q,
 146         MGMT_BEACON_Q
 147 };
 148
 149 struct security_info {
 150         bool security_enable;
 151         u32 ptk_cipher;
 152         u32 gtk_cipher;
 153 };
 154
 155 struct wmm_qinfo {
 156         s32 weight;
 157         s32 wme_params;
 158         s32 pkt_contended;
 159         s32 txop;
 160 };
 161
 162 struct transmit_q_stats {
 163         u32 total_tx_pkt_send[NUM_EDCA_QUEUES + 2];
 164         u32 total_tx_pkt_freed[NUM_EDCA_QUEUES + 2];
 165 };
 166
 167 struct vif_priv {
 168         bool is_ht;
 169         bool sgi;
 170         u16 seq_start;
 171         int vap_id;
 172 };
 173
 174 struct rsi_event {
 175         atomic_t event_condition;
 176         wait_queue_head_t event_queue;
 177 };
 178
 179 struct rsi_thread {
 180         void (*thread_function)(void *);
 181         struct completion completion;
 182         struct task_struct *task;
 183         struct rsi_event event;
 184         atomic_t thread_done;
 185 };
 186
 187 struct cqm_info {
 188         s8 last_cqm_event_rssi;
 189         int rssi_thold;
 190         u32 rssi_hyst;
 191 };
 192
 193 enum rsi_dfs_regions {
 194         RSI_REGION_FCC = 0,
 195         RSI_REGION_ETSI,
 196         RSI_REGION_TELEC,
 197         RSI_REGION_WORLD
 198 };
 199
 200 struct rsi_common {
 201         struct rsi_hw *priv;
 202         struct vif_priv vif_info[RSI_MAX_VIFS];
 203
 204         void *coex_cb;
 205         bool mgmt_q_block;
 206         struct version_info lmac_ver;
 207
 208         struct rsi_thread tx_thread;
 209         struct sk_buff_head tx_queue[NUM_EDCA_QUEUES + 2];
 210         struct completion wlan_init_completion;
 211         /* Mutex declaration */
 212         struct mutex mutex;
 213         /* Mutex used for tx thread */
 214         struct mutex tx_lock;
 215         /* Mutex used for rx thread */
 216         struct mutex rx_lock;
 217         u8 endpoint;
 218
 219         /* Channel/band related */
 220         u8 band;
 221         u8 num_supp_bands;
 222         u8 channel_width;
 223
 224         u16 rts_threshold;
 225         u16 bitrate_mask[2];
 226         u32 fixedrate_mask[2];
 227
 228         u8 rf_reset;
 229         struct transmit_q_stats tx_stats;
 230         struct security_info secinfo;
 231         struct wmm_qinfo tx_qinfo[NUM_EDCA_QUEUES];
 232         struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
 233         u8 mac_addr[IEEE80211_ADDR_LEN];
 234
 235         /* state related */
 236         u32 fsm_state;
 237         bool init_done;
 238         u8 bb_rf_prog_count;
 239         bool iface_down;
 240
 241         /* Generic */
 242         u8 channel;
 243         u8 *rx_data_pkt;
 244         u8 mac_id;
 245         u8 radio_id;
 246         u16 rate_pwr[20];
 247         u16 min_rate;
 248
 249         /* WMM algo related */
 250         u8 selected_qnum;
 251         u32 pkt_cnt;
 252         u8 min_weight;
 253
 254         /* bgscan related */
 255         struct cqm_info cqm_info;
 256
 257         bool hw_data_qs_blocked;
 258         u8 driver_mode;
 259         u8 coex_mode;
 260         u16 oper_mode;
 261         u8 lp_ps_handshake_mode;
 262         u8 ulp_ps_handshake_mode;
 263         u8 uapsd_bitmap;
 264         u8 rf_power_val;
 265         u8 wlan_rf_power_mode;
 266         u8 obm_ant_sel_val;
 267         int tx_power;
 268         u8 ant_in_use;
 269         /* Mutex used for writing packet to bus */
 270         struct mutex tx_bus_mutex;
 271         bool hibernate_resume;
 272         bool reinit_hw;
 273         u8 wow_flags;
 274         u16 beacon_interval;
 275         u8 dtim_cnt;
 276
 277         /* AP mode parameters */
 278         u8 beacon_enabled;
 279         u16 beacon_cnt;
 280         struct rsi_sta stations[RSI_MAX_ASSOC_STAS + 1];
 281         int num_stations;
 282         int max_stations;
 283         struct ieee80211_key_conf *key;
 284
 285         /* Wi-Fi direct mode related */
 286         bool p2p_enabled;
 287         struct timer_list roc_timer;
 288         struct ieee80211_vif *roc_vif;
 289
 290         bool eapol4_confirm;
 291         void *bt_adapter;
 292 };
 293
 294 struct eepromrw_info {
 295         u32 offset;
 296         u32 length;
 297         u8  write;
 298         u16 eeprom_erase;
 299         u8 data[480];
 300 };
 301
 302 struct eeprom_read {
 303         u16 length;
 304         u16 off_set;
 305 };
 306
 307 struct rsi_hw {
 308         struct rsi_common *priv;
 309         u8 device_model;
 310         struct ieee80211_hw *hw;
 311         struct ieee80211_vif *vifs[RSI_MAX_VIFS];
 312         struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
 313         struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
 314
 315         struct device *device;
 316         u8 sc_nvifs;
 317
 318         enum rsi_host_intf rsi_host_intf;
 319         u16 block_size;
 320         enum ps_state ps_state;
 321         struct rsi_ps_info ps_info;
 322         spinlock_t ps_lock; /*To protect power save config*/
 323         u32 usb_buffer_status_reg;
 324 #ifdef CONFIG_RSI_DEBUGFS
 325         struct rsi_debugfs *dfsentry;
 326         u8 num_debugfs_entries;
 327 #endif
 328         char *fw_file_name;
 329         struct timer_list bl_cmd_timer;
 330         bool blcmd_timer_expired;
 331         u32 flash_capacity;
 332         struct eepromrw_info eeprom;
 333         u32 interrupt_status;
 334         u8 dfs_region;
 335         char country[2];
 336         void *rsi_dev;
 337         struct rsi_host_intf_ops *host_intf_ops;
 338         int (*check_hw_queue_status)(struct rsi_hw *adapter, u8 q_num);
 339         int (*determine_event_timeout)(struct rsi_hw *adapter);
 340 };
 341
 342 void rsi_print_version(struct rsi_common *common);
 343
 344 struct rsi_host_intf_ops {
 345         int (*read_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
 346         int (*write_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
 347         int (*master_access_msword)(struct rsi_hw *adapter, u16 ms_word);
 348         int (*read_reg_multiple)(struct rsi_hw *adapter, u32 addr,
 349                                  u8 *data, u16 count);
 350         int (*write_reg_multiple)(struct rsi_hw *adapter, u32 addr,
 351                                   u8 *data, u16 count);
 352         int (*master_reg_read)(struct rsi_hw *adapter, u32 addr,
 353                                u32 *read_buf, u16 size);
 354         int (*master_reg_write)(struct rsi_hw *adapter,
 355                                 unsigned long addr, unsigned long data,
 356                                 u16 size);
 357         int (*load_data_master_write)(struct rsi_hw *adapter, u32 addr,
 358                                       u32 instructions_size, u16 block_size,
 359                                       u8 *fw);
 360         int (*reinit_device)(struct rsi_hw *adapter);
 361 };
 362
 363 enum rsi_host_intf rsi_get_host_intf(void *priv);
 364 void rsi_set_bt_context(void *priv, void *bt_context);
 365
 366 #endif