1 // Author: Xianjun Jiao, Michael Mehari, Wei Liu 2 // SPDX-FileCopyrightText: 2019 UGent 3 // SPDX-License-Identifier: AGPL-3.0-or-later 4 5 #ifndef OPENWIFI_SDR 6 #define OPENWIFI_SDR 7 8 #include "pre_def.h" 9 10 // -------------------for leds-------------------------------- 11 struct gpio_led_data { //please always align with the leds-gpio.c in linux kernel 12 struct led_classdev cdev; 13 struct gpio_desc *gpiod; 14 u8 can_sleep; 15 u8 blinking; 16 gpio_blink_set_t platform_gpio_blink_set; 17 }; 18 19 struct gpio_leds_priv { //please always align with the leds-gpio.c in linux kernel 20 int num_leds; 21 struct gpio_led_data leds[]; 22 }; 23 24 struct openwifi_rf_ops { 25 char *name; 26 // void (*init)(struct ieee80211_hw *); 27 // void (*stop)(struct ieee80211_hw *); 28 void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *); 29 // u8 (*calc_rssi)(u8 agc, u8 sq); 30 }; 31 32 struct openwifi_buffer_descriptor { 33 // u32 num_dma_byte; 34 // u32 sn; 35 // u32 hw_queue_idx; 36 // u32 retry_limit; 37 // u32 need_ack; 38 u16 seq_no; 39 struct sk_buff *skb_linked; 40 dma_addr_t dma_mapping_addr; 41 // u32 reserved; 42 } __packed; 43 44 struct openwifi_ring { 45 struct openwifi_buffer_descriptor *bds; 46 u32 bd_wr_idx; 47 u32 bd_rd_idx; 48 u32 stop_flag; // track the stop/wake status between tx interrupt and openwifi_tx 49 // u32 num_dma_symbol_request; 50 // u32 reserved; 51 } __packed; 52 53 struct openwifi_vif { 54 struct ieee80211_hw *dev; 55 56 int idx; // this vif's idx on the dev 57 58 /* beaconing */ 59 struct delayed_work beacon_work; 60 bool enable_beacon; 61 }; 62 63 union u32_byte4 { 64 u32 a; 65 u8 c[4]; 66 }; 67 union u16_byte2 { 68 u16 a; 69 u8 c[2]; 70 }; 71 72 #define MAX_NUM_LED 4 73 #define OPENWIFI_LED_MAX_NAME_LEN 32 74 75 // -------------sdrctl reg category----------------- 76 enum sdrctl_reg_cat { 77 SDRCTL_REG_CAT_NO_USE = 0, 78 SDRCTL_REG_CAT_RF, 79 SDRCTL_REG_CAT_RX_INTF, 80 SDRCTL_REG_CAT_TX_INTF, 81 SDRCTL_REG_CAT_RX, 82 SDRCTL_REG_CAT_TX, 83 SDRCTL_REG_CAT_XPU, 84 SDRCTL_REG_CAT_DRV_RX, 85 SDRCTL_REG_CAT_DRV_TX, 86 SDRCTL_REG_CAT_DRV_XPU, 87 }; 88 89 // ------------ software and RF reg definition ------------ 90 #define MAX_NUM_DRV_REG 8 91 #define DRV_TX_REG_IDX_RATE 0 92 #define DRV_TX_REG_IDX_RATE_HT 1 93 #define DRV_TX_REG_IDX_RATE_VHT 2 94 #define DRV_TX_REG_IDX_RATE_HE 3 95 #define DRV_TX_REG_IDX_ANT_CFG 4 96 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 97 98 #define DRV_RX_REG_IDX_DEMOD_TH 0 99 #define DRV_RX_REG_IDX_ANT_CFG 4 100 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 101 102 #define DRV_XPU_REG_IDX_LBT_TH 0 103 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 104 105 #define MAX_NUM_RF_REG 8 106 #define RF_TX_REG_IDX_ATT 0 107 #define RF_TX_REG_IDX_FO 1 108 #define RF_RX_REG_IDX_GAIN 4 109 #define RF_RX_REG_IDX_FO 5 110 // ------end of software and RF reg definition ------------ 111 112 #define MAX_NUM_VIF 4 113 114 //#define LEN_PHY_HEADER 16 115 #define LEN_PHY_CRC 4 116 #define LEN_MPDU_DELIM 4 117 118 #define RING_ROOM_THRESHOLD 4 119 #define NUM_BIT_NUM_TX_BD 6 120 #define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v 121 122 #ifdef USE_NEW_RX_INTERRUPT 123 #define NUM_RX_BD 8 124 #else 125 #define NUM_RX_BD 16 126 #endif 127 128 #define TX_BD_BUF_SIZE (8192) 129 #define RX_BD_BUF_SIZE (8192) 130 131 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 132 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 133 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 134 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 135 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 136 137 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 138 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 139 140 #define SDR_SUPPORTED_FILTERS \ 141 (FIF_ALLMULTI | \ 142 FIF_BCN_PRBRESP_PROMISC | \ 143 FIF_CONTROL | \ 144 FIF_OTHER_BSS | \ 145 FIF_PSPOLL | \ 146 FIF_PROBE_REQ) 147 148 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 149 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 150 151 /* 5G chan 36 - chan 64*/ 152 #define SDR_5GHZ_CH36_64 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 153 /* 5G chan 32 - chan 173*/ 154 #define SDR_5GHZ_CH32_173 REG_RULE(5160-10, 5865+10, 80, 0, 20, 0) 155 /* 5G chan 36 - chan 48*/ 156 #define SDR_5GHZ_CH36_48 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 157 158 /* 159 *Only these channels all allow active 160 *scan on all world regulatory domains 161 */ 162 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 163 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 164 165 // regulatory.h alpha2 166 // * 00 - World regulatory domain 167 // * 99 - built by driver but a specific alpha2 cannot be determined 168 // * 98 - result of an intersection between two regulatory domains 169 // * 97 - regulatory domain has not yet been configured 170 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 171 .n_reg_rules = 2, 172 .alpha2 = "99", 173 .dfs_region = NL80211_DFS_ETSI, 174 .reg_rules = { 175 //SDR_2GHZ_CH01_13, 176 //SDR_5GHZ_CH36_48, //Avoid radar! 177 SDR_2GHZ_CH01_14, 178 // SDR_5GHZ_CH36_64, 179 SDR_5GHZ_CH32_173, 180 } 181 }; 182 183 #define CHAN2G(_channel, _freq, _flags) { \ 184 .band = NL80211_BAND_2GHZ, \ 185 .hw_value = (_channel), \ 186 .center_freq = (_freq), \ 187 .flags = (_flags), \ 188 .max_antenna_gain = 0, \ 189 .max_power = 0, \ 190 } 191 192 #define CHAN5G(_channel, _freq, _flags) { \ 193 .band = NL80211_BAND_5GHZ, \ 194 .hw_value = (_channel), \ 195 .center_freq = (_freq), \ 196 .flags = (_flags), \ 197 .max_antenna_gain = 0, \ 198 .max_power = 0, \ 199 } 200 201 static const struct ieee80211_rate openwifi_5GHz_rates[] = { 202 { .bitrate = 10, .hw_value = 0, .flags = 0}, 203 { .bitrate = 20, .hw_value = 1, .flags = 0}, 204 { .bitrate = 55, .hw_value = 2, .flags = 0}, 205 { .bitrate = 110, .hw_value = 3, .flags = 0}, 206 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A}, 207 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 208 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 209 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 210 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 211 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 212 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 213 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 214 }; 215 216 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 217 { .bitrate = 10, .hw_value = 0, .flags = 0}, 218 { .bitrate = 20, .hw_value = 1, .flags = 0}, 219 { .bitrate = 55, .hw_value = 2, .flags = 0}, 220 { .bitrate = 110, .hw_value = 3, .flags = 0}, 221 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 222 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 223 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 224 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 225 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 226 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 227 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 228 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 229 }; 230 231 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 232 CHAN2G(1, 2412, 0), 233 CHAN2G(2, 2417, 0), 234 CHAN2G(3, 2422, 0), 235 CHAN2G(4, 2427, 0), 236 CHAN2G(5, 2432, 0), 237 CHAN2G(6, 2437, 0), 238 CHAN2G(7, 2442, 0), 239 CHAN2G(8, 2447, 0), 240 CHAN2G(9, 2452, 0), 241 CHAN2G(10, 2457, 0), 242 CHAN2G(11, 2462, 0), 243 CHAN2G(12, 2467, 0), 244 CHAN2G(13, 2472, 0), 245 CHAN2G(14, 2484, 0), 246 }; 247 248 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 249 CHAN5G(32, 5160, 0), 250 CHAN5G(34, 5170, 0), 251 CHAN5G(36, 5180, 0), 252 CHAN5G(38, 5190, 0), 253 CHAN5G(40, 5200, 0), 254 CHAN5G(42, 5210, 0), 255 CHAN5G(44, 5220, 0), 256 CHAN5G(46, 5230, 0), 257 CHAN5G(48, 5240, 0), 258 CHAN5G( 50, 5250, IEEE80211_CHAN_RADAR), 259 CHAN5G( 52, 5260, IEEE80211_CHAN_RADAR), 260 CHAN5G( 54, 5270, IEEE80211_CHAN_RADAR), 261 CHAN5G( 56, 5280, IEEE80211_CHAN_RADAR), 262 CHAN5G( 58, 5290, IEEE80211_CHAN_RADAR), 263 CHAN5G( 60, 5300, IEEE80211_CHAN_RADAR), 264 CHAN5G( 62, 5310, IEEE80211_CHAN_RADAR), 265 CHAN5G( 64, 5320, IEEE80211_CHAN_RADAR), 266 CHAN5G( 68, 5340, IEEE80211_CHAN_RADAR), 267 CHAN5G( 96, 5480, IEEE80211_CHAN_RADAR), 268 CHAN5G(100, 5500, IEEE80211_CHAN_RADAR), 269 CHAN5G(102, 5510, IEEE80211_CHAN_RADAR), 270 CHAN5G(104, 5520, IEEE80211_CHAN_RADAR), 271 CHAN5G(106, 5530, IEEE80211_CHAN_RADAR), 272 CHAN5G(108, 5540, IEEE80211_CHAN_RADAR), 273 CHAN5G(110, 5550, IEEE80211_CHAN_RADAR), 274 CHAN5G(112, 5560, IEEE80211_CHAN_RADAR), 275 CHAN5G(114, 5570, IEEE80211_CHAN_RADAR), 276 CHAN5G(116, 5580, IEEE80211_CHAN_RADAR), 277 CHAN5G(118, 5590, IEEE80211_CHAN_RADAR), 278 CHAN5G(120, 5600, IEEE80211_CHAN_RADAR), 279 CHAN5G(122, 5610, IEEE80211_CHAN_RADAR), 280 CHAN5G(124, 5620, IEEE80211_CHAN_RADAR), 281 CHAN5G(126, 5630, IEEE80211_CHAN_RADAR), 282 CHAN5G(128, 5640, IEEE80211_CHAN_RADAR), 283 CHAN5G(132, 5660, IEEE80211_CHAN_RADAR), 284 CHAN5G(134, 5670, IEEE80211_CHAN_RADAR), 285 CHAN5G(136, 5680, IEEE80211_CHAN_RADAR), 286 CHAN5G(138, 5690, IEEE80211_CHAN_RADAR), 287 CHAN5G(140, 5700, IEEE80211_CHAN_RADAR), 288 CHAN5G(142, 5710, IEEE80211_CHAN_RADAR), 289 CHAN5G(144, 5720, IEEE80211_CHAN_RADAR), 290 CHAN5G(149, 5745, IEEE80211_CHAN_RADAR), 291 CHAN5G(151, 5755, IEEE80211_CHAN_RADAR), 292 CHAN5G(153, 5765, IEEE80211_CHAN_RADAR), 293 CHAN5G(155, 5775, IEEE80211_CHAN_RADAR), 294 CHAN5G(157, 5785, IEEE80211_CHAN_RADAR), 295 CHAN5G(159, 5795, IEEE80211_CHAN_RADAR), 296 CHAN5G(161, 5805, IEEE80211_CHAN_RADAR), 297 // CHAN5G(163, 5815, IEEE80211_CHAN_RADAR), 298 CHAN5G(165, 5825, IEEE80211_CHAN_RADAR), 299 CHAN5G(167, 5835, IEEE80211_CHAN_RADAR), 300 CHAN5G(169, 5845, IEEE80211_CHAN_RADAR), 301 CHAN5G(171, 5855, IEEE80211_CHAN_RADAR), 302 CHAN5G(173, 5865, IEEE80211_CHAN_RADAR), 303 }; 304 305 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 306 { .max = MAX_NUM_VIF, .types = BIT(NL80211_IFTYPE_STATION) }, 307 { .max = MAX_NUM_VIF, .types = 308 #ifdef CONFIG_MAC80211_MESH 309 BIT(NL80211_IFTYPE_MESH_POINT) | 310 #endif 311 BIT(NL80211_IFTYPE_AP)}, 312 }; 313 314 static const struct ieee80211_iface_combination openwifi_if_comb = { 315 .limits = openwifi_if_limits, 316 .n_limits = ARRAY_SIZE(openwifi_if_limits), 317 .max_interfaces = MAX_NUM_VIF, 318 .num_different_channels = 1, 319 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 320 BIT(NL80211_CHAN_WIDTH_20) | 321 BIT(NL80211_CHAN_WIDTH_40) | 322 BIT(NL80211_CHAN_WIDTH_80), 323 }; 324 325 static const u8 wifi_rate_table_mapping[24] = { 0, 0, 0, 0, 0, 0, 0, 0, 10, 8, 6, 4, 11, 9, 7, 5, 0, 1, 2, 3, 4, 5, 6, 7}; 326 static const u16 wifi_rate_table[24] = { 0, 0, 0, 0, 0, 0, 0, 0, 480, 240, 120, 60, 540, 360, 180, 90, 65, 130, 195, 260, 390, 520, 585, 650}; 327 static const u16 wifi_rate_all[20] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540, 65, 130, 195, 260, 390, 520, 585, 650}; 328 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}; 329 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 330 static const u16 wifi_n_dbps_ht_table[16] = {26, 26, 26, 26, 26, 52, 78, 104, 156, 208, 234, 260, 0, 0, 0, 0}; 331 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 332 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 333 334 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 335 struct cf_axi_dds_state { 336 struct device *dev_spi; 337 struct clk *clk; 338 struct cf_axi_dds_chip_info *chip_info; 339 struct gpio_desc *plddrbypass_gpio; 340 struct gpio_desc *interpolation_gpio; 341 342 bool standalone; 343 bool dp_disable; 344 bool enable; 345 bool pl_dma_fifo_en; 346 enum fifo_ctrl gpio_dma_fifo_ctrl; 347 348 struct iio_info iio_info; 349 size_t regs_size; 350 void __iomem *regs; 351 void __iomem *slave_regs; 352 void __iomem *master_regs; 353 u64 dac_clk; 354 unsigned int ddr_dds_interp_en; 355 unsigned int cached_freq[16]; 356 unsigned int version; 357 unsigned int have_slave_channels; 358 unsigned int interpolation_factor; 359 struct notifier_block clk_nb; 360 }; 361 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 362 363 #define RX_DMA_CYCLIC_MODE 364 struct openwifi_priv { 365 struct platform_device *pdev; 366 struct ieee80211_vif *vif[MAX_NUM_VIF]; 367 368 const struct openwifi_rf_ops *rf; 369 enum openwifi_fpga_type fpga_type; 370 371 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 372 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 373 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 374 struct ctrl_outs_control ctrl_out; 375 376 int rx_freq_offset_to_lo_MHz; 377 int tx_freq_offset_to_lo_MHz; 378 u32 rf_bw; 379 u32 actual_rx_lo; 380 u32 actual_tx_lo; 381 382 struct ieee80211_rate rates_2GHz[12]; 383 struct ieee80211_rate rates_5GHz[12]; 384 struct ieee80211_channel channels_2GHz[14]; 385 struct ieee80211_channel channels_5GHz[53]; 386 struct ieee80211_supported_band band_2GHz; 387 struct ieee80211_supported_band band_5GHz; 388 bool rfkill_off; 389 390 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 391 392 enum rx_intf_mode rx_intf_cfg; 393 enum tx_intf_mode tx_intf_cfg; 394 enum openofdm_rx_mode openofdm_rx_cfg; 395 enum openofdm_tx_mode openofdm_tx_cfg; 396 enum xpu_mode xpu_cfg; 397 398 int irq_rx; 399 int irq_tx; 400 401 // u32 call_counter; 402 u8 *rx_cyclic_buf; 403 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 404 struct dma_chan *rx_chan; 405 struct dma_async_tx_descriptor *rxd; 406 dma_cookie_t rx_cookie; 407 408 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 409 struct scatterlist tx_sg; 410 struct dma_chan *tx_chan; 411 struct dma_async_tx_descriptor *txd; 412 dma_cookie_t tx_cookie; 413 // struct completion tx_dma_complete; 414 // bool openwifi_tx_first_time_run; 415 416 // int phy_tx_sn; 417 u32 slice_idx; 418 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 419 u8 mac_addr[ETH_ALEN]; 420 u16 seqno; 421 422 bool use_short_slot; 423 u8 band; 424 u16 channel; 425 426 u32 ampdu_reference; 427 428 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 429 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 430 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 431 int last_auto_fpga_lbt_th; 432 // u8 num_led; 433 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 434 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 435 436 spinlock_t lock; 437 }; 438 439 #endif /* OPENWIFI_SDR */ 440