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_ANY = 0xffffffff, 54 }; 55 56 #define wcn36xx_err(fmt, arg...) \ 57 printk(KERN_ERR pr_fmt("ERROR " fmt), ##arg) 58 59 #define wcn36xx_warn(fmt, arg...) \ 60 printk(KERN_WARNING pr_fmt("WARNING " fmt), ##arg) 61 62 #define wcn36xx_info(fmt, arg...) \ 63 printk(KERN_INFO pr_fmt(fmt), ##arg) 64 65 #define wcn36xx_dbg(mask, fmt, arg...) do { \ 66 if (wcn36xx_dbg_mask & mask) \ 67 printk(KERN_DEBUG pr_fmt(fmt), ##arg); \ 68 } while (0) 69 70 #define wcn36xx_dbg_dump(mask, prefix_str, buf, len) do { \ 71 if (wcn36xx_dbg_mask & mask) \ 72 print_hex_dump(KERN_DEBUG, pr_fmt(prefix_str), \ 73 DUMP_PREFIX_OFFSET, 32, 1, \ 74 buf, len, false); \ 75 } while (0) 76 77 enum wcn36xx_ampdu_state { 78 WCN36XX_AMPDU_NONE, 79 WCN36XX_AMPDU_INIT, 80 WCN36XX_AMPDU_START, 81 WCN36XX_AMPDU_OPERATIONAL, 82 }; 83 84 #define WCN36XX_HW_CHANNEL(__wcn) (__wcn->hw->conf.chandef.chan->hw_value) 85 #define WCN36XX_BAND(__wcn) (__wcn->hw->conf.chandef.chan->band) 86 #define WCN36XX_CENTER_FREQ(__wcn) (__wcn->hw->conf.chandef.chan->center_freq) 87 #define WCN36XX_LISTEN_INTERVAL(__wcn) (__wcn->hw->conf.listen_interval) 88 #define WCN36XX_FLAGS(__wcn) (__wcn->hw->flags) 89 #define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power) 90 91 #define RF_UNKNOWN 0x0000 92 #define RF_IRIS_WCN3620 0x3620 93 94 static inline void buff_to_be(u32 *buf, size_t len) 95 { 96 int i; 97 for (i = 0; i < len; i++) 98 buf[i] = cpu_to_be32(buf[i]); 99 } 100 101 struct nv_data { 102 int is_valid; 103 u8 table; 104 }; 105 106 /** 107 * struct wcn36xx_vif - holds VIF related fields 108 * 109 * @bss_index: bss_index is initially set to 0xFF. bss_index is received from 110 * HW after first config_bss call and must be used in delete_bss and 111 * enter/exit_bmps. 112 */ 113 struct wcn36xx_vif { 114 struct list_head list; 115 u8 dtim_period; 116 enum ani_ed_type encrypt_type; 117 bool is_joining; 118 bool sta_assoc; 119 struct wcn36xx_hal_mac_ssid ssid; 120 enum wcn36xx_hal_bss_type bss_type; 121 122 /* Power management */ 123 enum wcn36xx_power_state pw_state; 124 125 u8 bss_index; 126 /* Returned from WCN36XX_HAL_ADD_STA_SELF_RSP */ 127 u8 self_sta_index; 128 u8 self_dpu_desc_index; 129 u8 self_ucast_dpu_sign; 130 }; 131 132 /** 133 * struct wcn36xx_sta - holds STA related fields 134 * 135 * @tid: traffic ID that is used during AMPDU and in TX BD. 136 * @sta_index: STA index is returned from HW after config_sta call and is 137 * used in both SMD channel and TX BD. 138 * @dpu_desc_index: DPU descriptor index is returned from HW after config_sta 139 * call and is used in TX BD. 140 * @bss_sta_index: STA index is returned from HW after config_bss call and is 141 * used in both SMD channel and TX BD. See table bellow when it is used. 142 * @bss_dpu_desc_index: DPU descriptor index is returned from HW after 143 * config_bss call and is used in TX BD. 144 * ______________________________________________ 145 * | | STA | AP | 146 * |______________|_____________|_______________| 147 * | TX BD |bss_sta_index| sta_index | 148 * |______________|_____________|_______________| 149 * |all SMD calls |bss_sta_index| sta_index | 150 * |______________|_____________|_______________| 151 * |smd_delete_sta| sta_index | sta_index | 152 * |______________|_____________|_______________| 153 */ 154 struct wcn36xx_sta { 155 struct wcn36xx_vif *vif; 156 u16 aid; 157 u16 tid; 158 u8 sta_index; 159 u8 dpu_desc_index; 160 u8 ucast_dpu_sign; 161 u8 bss_sta_index; 162 u8 bss_dpu_desc_index; 163 bool is_data_encrypted; 164 /* Rates */ 165 struct wcn36xx_hal_supported_rates supported_rates; 166 167 spinlock_t ampdu_lock; /* protects next two fields */ 168 enum wcn36xx_ampdu_state ampdu_state[16]; 169 int non_agg_frame_ct; 170 }; 171 struct wcn36xx_dxe_ch; 172 struct wcn36xx { 173 struct ieee80211_hw *hw; 174 struct device *dev; 175 struct list_head vif_list; 176 177 const struct firmware *nv; 178 179 u8 fw_revision; 180 u8 fw_version; 181 u8 fw_minor; 182 u8 fw_major; 183 u32 fw_feat_caps[WCN36XX_HAL_CAPS_SIZE]; 184 bool is_pronto; 185 186 /* extra byte for the NULL termination */ 187 u8 crm_version[WCN36XX_HAL_VERSION_LENGTH + 1]; 188 u8 wlan_version[WCN36XX_HAL_VERSION_LENGTH + 1]; 189 190 bool first_boot; 191 192 /* IRQs */ 193 int tx_irq; 194 int rx_irq; 195 void __iomem *ccu_base; 196 void __iomem *dxe_base; 197 198 struct rpmsg_endpoint *smd_channel; 199 200 struct qcom_smem_state *tx_enable_state; 201 unsigned tx_enable_state_bit; 202 struct qcom_smem_state *tx_rings_empty_state; 203 unsigned tx_rings_empty_state_bit; 204 205 /* prevents concurrent FW reconfiguration */ 206 struct mutex conf_mutex; 207 208 /* 209 * smd_buf must be protected with smd_mutex to garantee 210 * that all messages are sent one after another 211 */ 212 u8 *hal_buf; 213 size_t hal_rsp_len; 214 struct mutex hal_mutex; 215 struct completion hal_rsp_compl; 216 struct workqueue_struct *hal_ind_wq; 217 struct work_struct hal_ind_work; 218 spinlock_t hal_ind_lock; 219 struct list_head hal_ind_queue; 220 221 struct work_struct scan_work; 222 struct cfg80211_scan_request *scan_req; 223 int scan_freq; 224 int scan_band; 225 struct mutex scan_lock; 226 bool scan_aborted; 227 228 /* DXE channels */ 229 struct wcn36xx_dxe_ch dxe_tx_l_ch; /* TX low */ 230 struct wcn36xx_dxe_ch dxe_tx_h_ch; /* TX high */ 231 struct wcn36xx_dxe_ch dxe_rx_l_ch; /* RX low */ 232 struct wcn36xx_dxe_ch dxe_rx_h_ch; /* RX high */ 233 234 /* For synchronization of DXE resources from BH, IRQ and WQ contexts */ 235 spinlock_t dxe_lock; 236 bool queues_stopped; 237 238 /* Memory pools */ 239 struct wcn36xx_dxe_mem_pool mgmt_mem_pool; 240 struct wcn36xx_dxe_mem_pool data_mem_pool; 241 242 struct sk_buff *tx_ack_skb; 243 244 /* RF module */ 245 unsigned rf_id; 246 247 #ifdef CONFIG_WCN36XX_DEBUGFS 248 /* Debug file system entry */ 249 struct wcn36xx_dfs_entry dfs; 250 #endif /* CONFIG_WCN36XX_DEBUGFS */ 251 252 }; 253 254 static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn, 255 u8 major, 256 u8 minor, 257 u8 version, 258 u8 revision) 259 { 260 return (wcn->fw_major == major && 261 wcn->fw_minor == minor && 262 wcn->fw_version == version && 263 wcn->fw_revision == revision); 264 } 265 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates); 266 267 static inline 268 struct ieee80211_sta *wcn36xx_priv_to_sta(struct wcn36xx_sta *sta_priv) 269 { 270 return container_of((void *)sta_priv, struct ieee80211_sta, drv_priv); 271 } 272 273 static inline 274 struct wcn36xx_vif *wcn36xx_vif_to_priv(struct ieee80211_vif *vif) 275 { 276 return (struct wcn36xx_vif *) vif->drv_priv; 277 } 278 279 static inline 280 struct ieee80211_vif *wcn36xx_priv_to_vif(struct wcn36xx_vif *vif_priv) 281 { 282 return container_of((void *) vif_priv, struct ieee80211_vif, drv_priv); 283 } 284 285 static inline 286 struct wcn36xx_sta *wcn36xx_sta_to_priv(struct ieee80211_sta *sta) 287 { 288 return (struct wcn36xx_sta *)sta->drv_priv; 289 } 290 291 #endif /* _WCN36XX_H_ */ 292