LXR linux/drivers/net/wireless/ath/wcn36xx/wcn36xx.h

   1/*
   2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
   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 ANY
  11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15 */
  16
  17#ifndef _WCN36XX_H_
  18#define _WCN36XX_H_
  19
  20#include <linux/completion.h>
  21#include <linux/in6.h>
  22#include <linux/printk.h>
  23#include <linux/spinlock.h>
  24#include <net/mac80211.h>
  25
  26#include "hal.h"
  27#include "smd.h"
  28#include "txrx.h"
  29#include "dxe.h"
  30#include "pmc.h"
  31#include "debug.h"
  32
  33#define WLAN_NV_FILE               "wlan/prima/WCNSS_qcom_wlan_nv.bin"
  34#define WCN36XX_AGGR_BUFFER_SIZE 64
  35
  36extern unsigned int wcn36xx_dbg_mask;
  37
  38enum wcn36xx_debug_mask {
  39        WCN36XX_DBG_DXE         = 0x00000001,
  40        WCN36XX_DBG_DXE_DUMP    = 0x00000002,
  41        WCN36XX_DBG_SMD         = 0x00000004,
  42        WCN36XX_DBG_SMD_DUMP    = 0x00000008,
  43        WCN36XX_DBG_RX          = 0x00000010,
  44        WCN36XX_DBG_RX_DUMP     = 0x00000020,
  45        WCN36XX_DBG_TX          = 0x00000040,
  46        WCN36XX_DBG_TX_DUMP     = 0x00000080,
  47        WCN36XX_DBG_HAL         = 0x00000100,
  48        WCN36XX_DBG_HAL_DUMP    = 0x00000200,
  49        WCN36XX_DBG_MAC         = 0x00000400,
  50        WCN36XX_DBG_BEACON      = 0x00000800,
  51        WCN36XX_DBG_BEACON_DUMP = 0x00001000,
  52        WCN36XX_DBG_PMC         = 0x00002000,
  53        WCN36XX_DBG_PMC_DUMP    = 0x00004000,
  54        WCN36XX_DBG_TESTMODE            = 0x00008000,
  55        WCN36XX_DBG_TESTMODE_DUMP       = 0x00010000,
  56        WCN36XX_DBG_ANY         = 0xffffffff,
  57};
  58
  59#define wcn36xx_err(fmt, arg...)                                \
  60        printk(KERN_ERR pr_fmt("ERROR " fmt), ##arg)
  61
  62#define wcn36xx_warn(fmt, arg...)                               \
  63        printk(KERN_WARNING pr_fmt("WARNING " fmt), ##arg)
  64
  65#define wcn36xx_info(fmt, arg...)               \
  66        printk(KERN_INFO pr_fmt(fmt), ##arg)
  67
  68#define wcn36xx_dbg(mask, fmt, arg...) do {                     \
  69        if (wcn36xx_dbg_mask & mask)                                    \
  70                printk(KERN_DEBUG pr_fmt(fmt), ##arg);  \
  71} while (0)
  72
  73#define wcn36xx_dbg_dump(mask, prefix_str, buf, len) do {       \
  74        if (wcn36xx_dbg_mask & mask)                                    \
  75                print_hex_dump(KERN_DEBUG, pr_fmt(prefix_str),  \
  76                               DUMP_PREFIX_OFFSET, 32, 1,       \
  77                               buf, len, false);                \
  78} while (0)
  79
  80enum wcn36xx_ampdu_state {
  81        WCN36XX_AMPDU_NONE,
  82        WCN36XX_AMPDU_INIT,
  83        WCN36XX_AMPDU_START,
  84        WCN36XX_AMPDU_OPERATIONAL,
  85};
  86
  87#define HW_VALUE_PHY_SHIFT 8
  88#define HW_VALUE_PHY(hw_value) ((hw_value) >> HW_VALUE_PHY_SHIFT)
  89#define HW_VALUE_CHANNEL(hw_value) ((hw_value) & 0xFF)
  90#define WCN36XX_HW_CHANNEL(__wcn)\
  91        HW_VALUE_CHANNEL(__wcn->hw->conf.chandef.chan->hw_value)
  92#define WCN36XX_BAND(__wcn) (__wcn->hw->conf.chandef.chan->band)
  93#define WCN36XX_CENTER_FREQ(__wcn) (__wcn->hw->conf.chandef.chan->center_freq)
  94#define WCN36XX_LISTEN_INTERVAL(__wcn) (__wcn->hw->conf.listen_interval)
  95#define WCN36XX_FLAGS(__wcn) (__wcn->hw->flags)
  96#define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power)
  97
  98#define RF_UNKNOWN      0x0000
  99#define RF_IRIS_WCN3620 0x3620
 100#define RF_IRIS_WCN3680 0x3680
 101
 102static inline void buff_to_be(u32 *buf, size_t len)
 103{
 104        int i;
 105        for (i = 0; i < len; i++)
 106                buf[i] = cpu_to_be32(buf[i]);
 107}
 108
 109struct nv_data {
 110        int     is_valid;
 111        u8      table;
 112};
 113
 114/**
 115 * struct wcn36xx_vif - holds VIF related fields
 116 *
 117 * @bss_index: bss_index is initially set to 0xFF. bss_index is received from
 118 * HW after first config_bss call and must be used in delete_bss and
 119 * enter/exit_bmps.
 120 */
 121struct wcn36xx_vif {
 122        struct list_head list;
 123        u8 dtim_period;
 124        enum ani_ed_type encrypt_type;
 125        bool is_joining;
 126        bool sta_assoc;
 127        struct wcn36xx_hal_mac_ssid ssid;
 128        enum wcn36xx_hal_bss_type bss_type;
 129
 130        /* Power management */
 131        enum wcn36xx_power_state pw_state;
 132
 133        u8 bss_index;
 134        /* Returned from WCN36XX_HAL_ADD_STA_SELF_RSP */
 135        u8 self_sta_index;
 136        u8 self_dpu_desc_index;
 137        u8 self_ucast_dpu_sign;
 138
 139#if IS_ENABLED(CONFIG_IPV6)
 140        /* IPv6 addresses for WoWLAN */
 141        struct in6_addr target_ipv6_addrs[WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX];
 142        unsigned long tentative_addrs[BITS_TO_LONGS(WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX)];
 143        int num_target_ipv6_addrs;
 144#endif
 145        /* WoWLAN GTK rekey data */
 146        struct {
 147                u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
 148                __le64 replay_ctr;
 149                bool valid;
 150        } rekey_data;
 151
 152        struct list_head sta_list;
 153
 154        int bmps_fail_ct;
 155};
 156
 157/**
 158 * struct wcn36xx_sta - holds STA related fields
 159 *
 160 * @tid: traffic ID that is used during AMPDU and in TX BD.
 161 * @sta_index: STA index is returned from HW after config_sta call and is
 162 * used in both SMD channel and TX BD.
 163 * @dpu_desc_index: DPU descriptor index is returned from HW after config_sta
 164 * call and is used in TX BD.
 165 * @bss_sta_index: STA index is returned from HW after config_bss call and is
 166 * used in both SMD channel and TX BD. See table bellow when it is used.
 167 * @bss_dpu_desc_index: DPU descriptor index is returned from HW after
 168 * config_bss call and is used in TX BD.
 169 * ______________________________________________
 170 * |              |     STA     |       AP      |
 171 * |______________|_____________|_______________|
 172 * |    TX BD     |bss_sta_index|   sta_index   |
 173 * |______________|_____________|_______________|
 174 * |all SMD calls |bss_sta_index|   sta_index   |
 175 * |______________|_____________|_______________|
 176 * |smd_delete_sta|  sta_index  |   sta_index   |
 177 * |______________|_____________|_______________|
 178 */
 179struct wcn36xx_sta {
 180        struct list_head list;
 181        struct wcn36xx_vif *vif;
 182        u16 aid;
 183        u16 tid;
 184        u8 sta_index;
 185        u8 dpu_desc_index;
 186        u8 ucast_dpu_sign;
 187        u8 bss_sta_index;
 188        u8 bss_dpu_desc_index;
 189        bool is_data_encrypted;
 190        /* Rates */
 191        struct wcn36xx_hal_supported_rates_v1 supported_rates;
 192
 193        spinlock_t ampdu_lock;          /* protects next two fields */
 194        enum wcn36xx_ampdu_state ampdu_state[16];
 195        int non_agg_frame_ct;
 196};
 197struct wcn36xx_dxe_ch;
 198struct wcn36xx {
 199        struct ieee80211_hw     *hw;
 200        struct device           *dev;
 201        struct list_head        vif_list;
 202
 203        const char              *nv_file;
 204        const struct firmware   *nv;
 205
 206        u8                      fw_revision;
 207        u8                      fw_version;
 208        u8                      fw_minor;
 209        u8                      fw_major;
 210        u32                     fw_feat_caps[WCN36XX_HAL_CAPS_SIZE];
 211        bool                    is_pronto;
 212
 213        /* extra byte for the NULL termination */
 214        u8                      crm_version[WCN36XX_HAL_VERSION_LENGTH + 1];
 215        u8                      wlan_version[WCN36XX_HAL_VERSION_LENGTH + 1];
 216
 217        bool            first_boot;
 218
 219        /* IRQs */
 220        int                     tx_irq;
 221        int                     rx_irq;
 222        void __iomem            *ccu_base;
 223        void __iomem            *dxe_base;
 224
 225        struct rpmsg_endpoint   *smd_channel;
 226
 227        struct qcom_smem_state  *tx_enable_state;
 228        unsigned                tx_enable_state_bit;
 229        struct qcom_smem_state  *tx_rings_empty_state;
 230        unsigned                tx_rings_empty_state_bit;
 231
 232        /* prevents concurrent FW reconfiguration */
 233        struct mutex            conf_mutex;
 234
 235        /*
 236         * smd_buf must be protected with smd_mutex to garantee
 237         * that all messages are sent one after another
 238         */
 239        u8                      *hal_buf;
 240        size_t                  hal_rsp_len;
 241        struct mutex            hal_mutex;
 242        struct completion       hal_rsp_compl;
 243        struct workqueue_struct *hal_ind_wq;
 244        struct work_struct      hal_ind_work;
 245        spinlock_t              hal_ind_lock;
 246        struct list_head        hal_ind_queue;
 247
 248        struct cfg80211_scan_request *scan_req;
 249        bool                    sw_scan;
 250        u8                      sw_scan_opchannel;
 251        u8                      sw_scan_channel;
 252        struct ieee80211_vif    *sw_scan_vif;
 253        struct mutex            scan_lock;
 254        bool                    scan_aborted;
 255
 256        /* DXE channels */
 257        struct wcn36xx_dxe_ch   dxe_tx_l_ch;    /* TX low */
 258        struct wcn36xx_dxe_ch   dxe_tx_h_ch;    /* TX high */
 259        struct wcn36xx_dxe_ch   dxe_rx_l_ch;    /* RX low */
 260        struct wcn36xx_dxe_ch   dxe_rx_h_ch;    /* RX high */
 261
 262        /* For synchronization of DXE resources from BH, IRQ and WQ contexts */
 263        spinlock_t      dxe_lock;
 264        bool                    queues_stopped;
 265
 266        /* Memory pools */
 267        struct wcn36xx_dxe_mem_pool mgmt_mem_pool;
 268        struct wcn36xx_dxe_mem_pool data_mem_pool;
 269
 270        struct sk_buff          *tx_ack_skb;
 271        struct timer_list       tx_ack_timer;
 272
 273        /* For A-MSDU re-aggregation */
 274        struct sk_buff_head amsdu;
 275
 276        /* RF module */
 277        unsigned                rf_id;
 278
 279#ifdef CONFIG_WCN36XX_DEBUGFS
 280        /* Debug file system entry */
 281        struct wcn36xx_dfs_entry    dfs;
 282#endif /* CONFIG_WCN36XX_DEBUGFS */
 283};
 284
 285static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn,
 286                                         u8 major,
 287                                         u8 minor,
 288                                         u8 version,
 289                                         u8 revision)
 290{
 291        return (wcn->fw_major == major &&
 292                wcn->fw_minor == minor &&
 293                wcn->fw_version == version &&
 294                wcn->fw_revision == revision);
 295}
 296void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates);
 297void wcn36xx_set_default_rates_v1(struct wcn36xx_hal_supported_rates_v1 *rates);
 298
 299static inline
 300struct ieee80211_sta *wcn36xx_priv_to_sta(struct wcn36xx_sta *sta_priv)
 301{
 302        return container_of((void *)sta_priv, struct ieee80211_sta, drv_priv);
 303}
 304
 305static inline
 306struct wcn36xx_vif *wcn36xx_vif_to_priv(struct ieee80211_vif *vif)
 307{
 308        return (struct wcn36xx_vif *) vif->drv_priv;
 309}
 310
 311static inline
 312struct ieee80211_vif *wcn36xx_priv_to_vif(struct wcn36xx_vif *vif_priv)
 313{
 314        return container_of((void *) vif_priv, struct ieee80211_vif, drv_priv);
 315}
 316
 317static inline
 318struct wcn36xx_sta *wcn36xx_sta_to_priv(struct ieee80211_sta *sta)
 319{
 320        return (struct wcn36xx_sta *)sta->drv_priv;
 321}
 322
 323#endif  /* _WCN36XX_H_ */
 324