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
  24 #define ERR_ZONE                        BIT(0)  /* For Error Msgs             */
  25 #define INFO_ZONE                       BIT(1)  /* For General Status Msgs    */
  26 #define INIT_ZONE                       BIT(2)  /* For Driver Init Seq Msgs   */
  27 #define MGMT_TX_ZONE                    BIT(3)  /* For TX Mgmt Path Msgs      */
  28 #define MGMT_RX_ZONE                    BIT(4)  /* For RX Mgmt Path Msgs      */
  29 #define DATA_TX_ZONE                    BIT(5)  /* For TX Data Path Msgs      */
  30 #define DATA_RX_ZONE                    BIT(6)  /* For RX Data Path Msgs      */
  31 #define FSM_ZONE                        BIT(7)  /* For State Machine Msgs     */
  32 #define ISR_ZONE                        BIT(8)  /* For Interrupt Msgs         */
  33
  34 #define FSM_CARD_NOT_READY              0
  35 #define FSM_BOOT_PARAMS_SENT            1
  36 #define FSM_EEPROM_READ_MAC_ADDR        2
  37 #define FSM_RESET_MAC_SENT              3
  38 #define FSM_RADIO_CAPS_SENT             4
  39 #define FSM_BB_RF_PROG_SENT             5
  40 #define FSM_MAC_INIT_DONE               6
  41
  42 extern u32 rsi_zone_enabled;
  43 extern __printf(2, 3) void rsi_dbg(u32 zone, const char *fmt, ...);
  44
  45 #define RSI_MAX_VIFS                    1
  46 #define NUM_EDCA_QUEUES                 4
  47 #define IEEE80211_ADDR_LEN              6
  48 #define FRAME_DESC_SZ                   16
  49 #define MIN_802_11_HDR_LEN              24
  50
  51 #define DATA_QUEUE_WATER_MARK           400
  52 #define MIN_DATA_QUEUE_WATER_MARK       300
  53 #define MULTICAST_WATER_MARK            200
  54 #define MAC_80211_HDR_FRAME_CONTROL     0
  55 #define WME_NUM_AC                      4
  56 #define NUM_SOFT_QUEUES                 5
  57 #define MAX_HW_QUEUES                   8
  58 #define INVALID_QUEUE                   0xff
  59 #define MAX_CONTINUOUS_VO_PKTS          8
  60 #define MAX_CONTINUOUS_VI_PKTS          4
  61
  62 /* Queue information */
  63 #define RSI_WIFI_MGMT_Q                 0x4
  64 #define RSI_WIFI_DATA_Q                 0x5
  65 #define IEEE80211_MGMT_FRAME            0x00
  66 #define IEEE80211_CTL_FRAME             0x04
  67
  68 #define IEEE80211_QOS_TID               0x0f
  69 #define IEEE80211_NONQOS_TID            16
  70
  71 #define MAX_DEBUGFS_ENTRIES             4
  72
  73 #define TID_TO_WME_AC(_tid) (      \
  74         ((_tid) == 0 || (_tid) == 3) ? BE_Q : \
  75         ((_tid) < 3) ? BK_Q : \
  76         ((_tid) < 6) ? VI_Q : \
  77         VO_Q)
  78
  79 #define WME_AC(_q) (    \
  80         ((_q) == BK_Q) ? IEEE80211_AC_BK : \
  81         ((_q) == BE_Q) ? IEEE80211_AC_BE : \
  82         ((_q) == VI_Q) ? IEEE80211_AC_VI : \
  83         IEEE80211_AC_VO)
  84
  85 struct version_info {
  86         u16 major;
  87         u16 minor;
  88         u16 release_num;
  89         u16 patch_num;
  90 } __packed;
  91
  92 struct skb_info {
  93         s8 rssi;
  94         u32 flags;
  95         u16 channel;
  96         s8 tid;
  97         s8 sta_id;
  98 };
  99
 100 enum edca_queue {
 101         BK_Q,
 102         BE_Q,
 103         VI_Q,
 104         VO_Q,
 105         MGMT_SOFT_Q
 106 };
 107
 108 struct security_info {
 109         bool security_enable;
 110         u32 ptk_cipher;
 111         u32 gtk_cipher;
 112 };
 113
 114 struct wmm_qinfo {
 115         s32 weight;
 116         s32 wme_params;
 117         s32 pkt_contended;
 118         s32 txop;
 119 };
 120
 121 struct transmit_q_stats {
 122         u32 total_tx_pkt_send[NUM_EDCA_QUEUES + 1];
 123         u32 total_tx_pkt_freed[NUM_EDCA_QUEUES + 1];
 124 };
 125
 126 struct vif_priv {
 127         bool is_ht;
 128         bool sgi;
 129         u16 seq_start;
 130 };
 131
 132 struct rsi_event {
 133         atomic_t event_condition;
 134         wait_queue_head_t event_queue;
 135 };
 136
 137 struct rsi_thread {
 138         void (*thread_function)(void *);
 139         struct completion completion;
 140         struct task_struct *task;
 141         struct rsi_event event;
 142         atomic_t thread_done;
 143 };
 144
 145 struct cqm_info {
 146         s8 last_cqm_event_rssi;
 147         int rssi_thold;
 148         u32 rssi_hyst;
 149 };
 150
 151 struct rsi_hw;
 152
 153 struct rsi_common {
 154         struct rsi_hw *priv;
 155         struct vif_priv vif_info[RSI_MAX_VIFS];
 156
 157         bool mgmt_q_block;
 158         struct version_info driver_ver;
 159         struct version_info fw_ver;
 160
 161         struct rsi_thread tx_thread;
 162         struct sk_buff_head tx_queue[NUM_EDCA_QUEUES + 1];
 163         /* Mutex declaration */
 164         struct mutex mutex;
 165         /* Mutex used between tx/rx threads */
 166         struct mutex tx_rxlock;
 167         u8 endpoint;
 168
 169         /* Channel/band related */
 170         u8 band;
 171         u8 channel_width;
 172
 173         u16 rts_threshold;
 174         u16 bitrate_mask[2];
 175         u32 fixedrate_mask[2];
 176
 177         u8 rf_reset;
 178         struct transmit_q_stats tx_stats;
 179         struct security_info secinfo;
 180         struct wmm_qinfo tx_qinfo[NUM_EDCA_QUEUES];
 181         struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
 182         u8 mac_addr[IEEE80211_ADDR_LEN];
 183
 184         /* state related */
 185         u32 fsm_state;
 186         bool init_done;
 187         u8 bb_rf_prog_count;
 188         bool iface_down;
 189
 190         /* Generic */
 191         u8 channel;
 192         u8 *rx_data_pkt;
 193         u8 mac_id;
 194         u8 radio_id;
 195         u16 rate_pwr[20];
 196         u16 min_rate;
 197
 198         /* WMM algo related */
 199         u8 selected_qnum;
 200         u32 pkt_cnt;
 201         u8 min_weight;
 202
 203         /* bgscan related */
 204         struct cqm_info cqm_info;
 205
 206         bool hw_data_qs_blocked;
 207 };
 208
 209 struct rsi_hw {
 210         struct rsi_common *priv;
 211         struct ieee80211_hw *hw;
 212         struct ieee80211_vif *vifs[RSI_MAX_VIFS];
 213         struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
 214         struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 215
 216         struct device *device;
 217         u8 sc_nvifs;
 218
 219 #ifdef CONFIG_RSI_DEBUGFS
 220         struct rsi_debugfs *dfsentry;
 221         u8 num_debugfs_entries;
 222 #endif
 223         void *rsi_dev;
 224         int (*host_intf_read_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
 225         int (*host_intf_write_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
 226         int (*check_hw_queue_status)(struct rsi_hw *adapter, u8 q_num);
 227         int (*rx_urb_submit)(struct rsi_hw *adapter);
 228         int (*determine_event_timeout)(struct rsi_hw *adapter);
 229 };
 230 #endif