1 // Xianjun jiao. [email protected]; [email protected] 2 3 #ifndef OPENWIFI_SDR 4 #define OPENWIFI_SDR 5 6 // -------------------for leds-------------------------------- 7 struct gpio_led_data { //pleas always align with the leds-gpio.c in linux kernel 8 struct led_classdev cdev; 9 struct gpio_desc *gpiod; 10 u8 can_sleep; 11 u8 blinking; 12 gpio_blink_set_t platform_gpio_blink_set; 13 }; 14 15 struct gpio_leds_priv { //pleas always align with the leds-gpio.c in linux kernel 16 int num_leds; 17 struct gpio_led_data leds[]; 18 }; 19 20 struct openwifi_rf_ops { 21 char *name; 22 // void (*init)(struct ieee80211_hw *); 23 // void (*stop)(struct ieee80211_hw *); 24 void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *); 25 // u8 (*calc_rssi)(u8 agc, u8 sq); 26 }; 27 28 struct openwifi_buffer_descriptor { 29 // u32 num_dma_byte; 30 // u32 sn; 31 // u32 hw_queue_idx; 32 // u32 retry_limit; 33 // u32 need_ack; 34 struct sk_buff *skb_linked; 35 dma_addr_t dma_mapping_addr; 36 // u32 reserved; 37 } __packed; 38 39 struct openwifi_ring { 40 struct openwifi_buffer_descriptor *bds; 41 u32 bd_wr_idx; 42 u32 bd_rd_idx; 43 u32 stop_flag; // track the stop/wake status between tx interrupt and openwifi_tx 44 // u32 num_dma_symbol_request; 45 // u32 reserved; 46 } __packed; 47 48 struct openwifi_vif { 49 struct ieee80211_hw *dev; 50 51 int idx; // this vif's idx on the dev 52 53 /* beaconing */ 54 struct delayed_work beacon_work; 55 bool enable_beacon; 56 }; 57 58 union u32_byte4 { 59 u32 a; 60 u8 c[4]; 61 }; 62 union u16_byte2 { 63 u16 a; 64 u8 c[2]; 65 }; 66 67 #define MAX_NUM_LED 4 68 #define OPENWIFI_LED_MAX_NAME_LEN 32 69 70 // ------------ software reg definition ------------ 71 #define MAX_NUM_DRV_REG 8 72 #define DRV_TX_REG_IDX_RATE 0 73 #define DRV_TX_REG_IDX_FREQ_BW_CFG 1 74 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 75 76 #define DRV_RX_REG_IDX_FREQ_BW_CFG 1 77 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 78 79 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 80 81 // ------end of software reg definition ------------ 82 83 #define MAX_NUM_VIF 4 84 85 #define LEN_PHY_HEADER 16 86 #define LEN_PHY_CRC 4 87 88 #define RING_ROOM_THRESHOLD 4 89 #define NUM_TX_BD 64 // !!! should align to the fifo size in tx_bit_intf.v 90 #define NUM_RX_BD 16 91 #define TX_BD_BUF_SIZE (8192) 92 #define RX_BD_BUF_SIZE (8192) 93 94 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 95 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 96 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 97 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 98 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 99 100 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 101 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 102 103 #define SDR_SUPPORTED_FILTERS \ 104 (FIF_ALLMULTI | \ 105 FIF_BCN_PRBRESP_PROMISC | \ 106 FIF_CONTROL | \ 107 FIF_OTHER_BSS | \ 108 FIF_PSPOLL | \ 109 FIF_PROBE_REQ) 110 111 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 112 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 113 114 /* 5G chan 36 - chan 64*/ 115 #define SDR_5GHZ_CH36_64 \ 116 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 117 /* 5G chan 36 - chan 48*/ 118 #define SDR_5GHZ_CH36_48 \ 119 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 120 121 /* 122 *Only these channels all allow active 123 *scan on all world regulatory domains 124 */ 125 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 126 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 127 128 // regulatory.h alpha2 129 // * 00 - World regulatory domain 130 // * 99 - built by driver but a specific alpha2 cannot be determined 131 // * 98 - result of an intersection between two regulatory domains 132 // * 97 - regulatory domain has not yet been configured 133 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 134 .n_reg_rules = 2, 135 .alpha2 = "99", 136 .dfs_region = NL80211_DFS_ETSI, 137 .reg_rules = { 138 //SDR_2GHZ_CH01_13, 139 //SDR_5GHZ_CH36_48, //Avoid radar! 140 SDR_2GHZ_CH01_14, 141 SDR_5GHZ_CH36_64, 142 } 143 }; 144 145 #define CHAN2G(_channel, _freq, _flags) { \ 146 .band = NL80211_BAND_2GHZ, \ 147 .hw_value = (_channel), \ 148 .center_freq = (_freq), \ 149 .flags = (_flags), \ 150 .max_antenna_gain = 0, \ 151 .max_power = 0, \ 152 } 153 154 #define CHAN5G(_channel, _freq, _flags) { \ 155 .band = NL80211_BAND_5GHZ, \ 156 .hw_value = (_channel), \ 157 .center_freq = (_freq), \ 158 .flags = (_flags), \ 159 .max_antenna_gain = 0, \ 160 .max_power = 0, \ 161 } 162 163 static const struct ieee80211_rate openwifi_5GHz_rates[] = { 164 { .bitrate = 10, .hw_value = 0, .flags = 0}, 165 { .bitrate = 20, .hw_value = 1, .flags = 0}, 166 { .bitrate = 55, .hw_value = 2, .flags = 0}, 167 { .bitrate = 110, .hw_value = 3, .flags = 0}, 168 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A}, 169 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 170 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 171 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 172 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 173 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 174 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 175 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 176 }; 177 178 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 179 { .bitrate = 10, .hw_value = 0, .flags = 0}, 180 { .bitrate = 20, .hw_value = 1, .flags = 0}, 181 { .bitrate = 55, .hw_value = 2, .flags = 0}, 182 { .bitrate = 110, .hw_value = 3, .flags = 0}, 183 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 184 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 185 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 186 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 187 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 188 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 189 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 190 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 191 }; 192 193 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 194 CHAN2G(1, 2412, 0), 195 CHAN2G(2, 2417, 0), 196 CHAN2G(3, 2422, 0), 197 CHAN2G(4, 2427, 0), 198 CHAN2G(5, 2432, 0), 199 CHAN2G(6, 2437, 0), 200 CHAN2G(7, 2442, 0), 201 CHAN2G(8, 2447, 0), 202 CHAN2G(9, 2452, 0), 203 CHAN2G(10, 2457, 0), 204 CHAN2G(11, 2462, 0), 205 CHAN2G(12, 2467, 0), 206 CHAN2G(13, 2472, 0), 207 CHAN2G(14, 2484, 0), 208 }; 209 210 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 211 CHAN5G(36, 5180, 0), 212 CHAN5G(38, 5190, 0), 213 CHAN5G(40, 5200, 0), 214 CHAN5G(42, 5210, 0), 215 CHAN5G(44, 5220, 0), 216 CHAN5G(46, 5230, 0), 217 CHAN5G(48, 5240, 0), 218 CHAN5G(52, 5260, IEEE80211_CHAN_RADAR), 219 CHAN5G(56, 5280, IEEE80211_CHAN_RADAR), 220 CHAN5G(60, 5300, IEEE80211_CHAN_RADAR), 221 CHAN5G(64, 5320, IEEE80211_CHAN_RADAR), 222 // CHAN5G(100, 5500, 0), 223 // CHAN5G(104, 5520, 0), 224 // CHAN5G(108, 5540, 0), 225 // CHAN5G(112, 5560, 0), 226 // CHAN5G(116, 5580, 0), 227 // CHAN5G(120, 5600, 0), 228 // CHAN5G(124, 5620, 0), 229 // CHAN5G(128, 5640, 0), 230 // CHAN5G(132, 5660, 0), 231 // CHAN5G(136, 5680, 0), 232 // CHAN5G(140, 5700, 0), 233 // CHAN5G(144, 5720, 0), 234 // CHAN5G(149, 5745, 0), 235 // CHAN5G(153, 5765, 0), 236 // CHAN5G(157, 5785, 0), 237 // CHAN5G(161, 5805, 0), 238 // CHAN5G(165, 5825, 0), 239 // CHAN5G(169, 5845, 0), 240 }; 241 242 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 243 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) }, 244 { .max = 4, .types = 245 #ifdef CONFIG_MAC80211_MESH 246 BIT(NL80211_IFTYPE_MESH_POINT) | 247 #endif 248 BIT(NL80211_IFTYPE_AP) }, 249 }; 250 251 static const struct ieee80211_iface_combination openwifi_if_comb = { 252 .limits = openwifi_if_limits, 253 .n_limits = ARRAY_SIZE(openwifi_if_limits), 254 .max_interfaces = 2048, 255 .num_different_channels = 1, 256 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 257 BIT(NL80211_CHAN_WIDTH_20) | 258 BIT(NL80211_CHAN_WIDTH_40) | 259 BIT(NL80211_CHAN_WIDTH_80), 260 }; 261 262 static const u8 wifi_rate_table_mapping[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 10, 8, 6, 4, 11, 9, 7, 5}; 263 static const u8 wifi_rate_table[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 48, 24, 12, 6, 54, 36, 18, 9}; 264 static const u8 wifi_rate_all[16] = { 1, 2, 5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 0, 0, 0, 0}; 265 static const u8 wifi_mcs_table_11b_force_up[16] = {11, 11, 11, 11, 11, 15, 10, 14, 9, 13, 8, 12, 0, 0, 0, 0}; 266 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 267 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 268 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 269 270 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 271 struct cf_axi_dds_state { 272 struct device *dev_spi; 273 struct clk *clk; 274 struct cf_axi_dds_chip_info *chip_info; 275 struct gpio_desc *plddrbypass_gpio; 276 struct gpio_desc *interpolation_gpio; 277 278 bool standalone; 279 bool dp_disable; 280 bool enable; 281 bool pl_dma_fifo_en; 282 enum fifo_ctrl gpio_dma_fifo_ctrl; 283 284 struct iio_info iio_info; 285 size_t regs_size; 286 void __iomem *regs; 287 void __iomem *slave_regs; 288 void __iomem *master_regs; 289 u64 dac_clk; 290 unsigned int ddr_dds_interp_en; 291 unsigned int cached_freq[16]; 292 unsigned int version; 293 unsigned int have_slave_channels; 294 unsigned int interpolation_factor; 295 struct notifier_block clk_nb; 296 }; 297 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 298 299 #define RX_DMA_CYCLIC_MODE 300 struct openwifi_priv { 301 struct platform_device *pdev; 302 struct ieee80211_vif *vif[MAX_NUM_VIF]; 303 304 const struct openwifi_rf_ops *rf; 305 306 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 307 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 308 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 309 struct ctrl_outs_control ctrl_out; 310 311 int rx_freq_offset_to_lo_MHz; 312 int tx_freq_offset_to_lo_MHz; 313 u32 rf_bw; 314 u32 actual_rx_lo; 315 316 struct ieee80211_rate rates_2GHz[12]; 317 struct ieee80211_rate rates_5GHz[12]; 318 struct ieee80211_channel channels_2GHz[14]; 319 struct ieee80211_channel channels_5GHz[11]; 320 struct ieee80211_supported_band band_2GHz; 321 struct ieee80211_supported_band band_5GHz; 322 bool rfkill_off; 323 324 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 325 326 enum rx_intf_mode rx_intf_cfg; 327 enum tx_intf_mode tx_intf_cfg; 328 enum openofdm_rx_mode openofdm_rx_cfg; 329 enum openofdm_tx_mode openofdm_tx_cfg; 330 enum xpu_mode xpu_cfg; 331 332 int irq_rx; 333 int irq_tx; 334 335 // u32 call_counter; 336 u8 *rx_cyclic_buf; 337 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 338 struct dma_chan *rx_chan; 339 struct dma_async_tx_descriptor *rxd; 340 dma_cookie_t rx_cookie; 341 342 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 343 struct scatterlist tx_sg; 344 struct dma_chan *tx_chan; 345 struct dma_async_tx_descriptor *txd; 346 dma_cookie_t tx_cookie; 347 // struct completion tx_dma_complete; 348 // bool openwifi_tx_first_time_run; 349 350 // int phy_tx_sn; 351 u32 slice_idx; 352 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 353 u8 mac_addr[ETH_ALEN]; 354 u16 seqno; 355 356 bool use_short_slot; 357 u8 band; 358 u16 channel; 359 360 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 361 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 362 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 363 // u8 num_led; 364 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 365 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 366 367 spinlock_t lock; 368 }; 369 370 #endif /* OPENWIFI_SDR */ 371