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