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 #define NUM_TX_ANT_MASK 3 76 #define NUM_RX_ANT_MASK 3 77 78 // -------------sdrctl reg category----------------- 79 enum sdrctl_reg_cat { 80 SDRCTL_REG_CAT_NO_USE = 0, 81 SDRCTL_REG_CAT_RF, 82 SDRCTL_REG_CAT_RX_INTF, 83 SDRCTL_REG_CAT_TX_INTF, 84 SDRCTL_REG_CAT_RX, 85 SDRCTL_REG_CAT_TX, 86 SDRCTL_REG_CAT_XPU, 87 SDRCTL_REG_CAT_DRV_RX, 88 SDRCTL_REG_CAT_DRV_TX, 89 SDRCTL_REG_CAT_DRV_XPU, 90 }; 91 92 // ------------ software and RF reg definition ------------ 93 #define MAX_NUM_DRV_REG 8 94 #define DRV_TX_REG_IDX_RATE 0 95 #define DRV_TX_REG_IDX_RATE_HT 1 96 #define DRV_TX_REG_IDX_RATE_VHT 2 97 #define DRV_TX_REG_IDX_RATE_HE 3 98 #define DRV_TX_REG_IDX_ANT_CFG 4 99 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 100 101 #define DRV_RX_REG_IDX_DEMOD_TH 0 102 #define DRV_RX_REG_IDX_ANT_CFG 4 103 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 104 105 #define DRV_XPU_REG_IDX_LBT_TH 0 106 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 107 108 #define MAX_NUM_RF_REG 8 109 #define RF_TX_REG_IDX_ATT 0 110 #define RF_TX_REG_IDX_FO 1 111 #define RF_RX_REG_IDX_GAIN 4 112 #define RF_RX_REG_IDX_FO 5 113 // ------end of software and RF reg definition ------------ 114 115 #define MAX_NUM_VIF 4 116 117 //#define LEN_PHY_HEADER 16 118 #define LEN_PHY_CRC 4 119 #define LEN_MPDU_DELIM 4 120 121 #define RING_ROOM_THRESHOLD 4 122 #define NUM_BIT_NUM_TX_BD 6 123 #define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v 124 125 #ifdef USE_NEW_RX_INTERRUPT 126 #define NUM_RX_BD 8 127 #else 128 #define NUM_RX_BD 16 129 #endif 130 131 #define TX_BD_BUF_SIZE (8192) 132 #define RX_BD_BUF_SIZE (8192) 133 134 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 135 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 136 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 137 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 138 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 139 140 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 141 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 142 #define AD9361_CTRL_OUT_EN_MASK (0xFF) 143 #define AD9361_CTRL_OUT_INDEX_ANT0 (0x16) 144 #define AD9361_CTRL_OUT_INDEX_ANT1 (0x17) 145 146 #define SDR_SUPPORTED_FILTERS \ 147 (FIF_ALLMULTI | \ 148 FIF_BCN_PRBRESP_PROMISC | \ 149 FIF_CONTROL | \ 150 FIF_OTHER_BSS | \ 151 FIF_PSPOLL | \ 152 FIF_PROBE_REQ) 153 154 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 155 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 156 157 /* 5G chan 36 - chan 64*/ 158 #define SDR_5GHZ_CH36_64 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 159 /* 5G chan 32 - chan 173*/ 160 #define SDR_5GHZ_CH32_173 REG_RULE(5160-10, 5865+10, 80, 0, 20, 0) 161 /* 5G chan 36 - chan 48*/ 162 #define SDR_5GHZ_CH36_48 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 163 164 /* 165 *Only these channels all allow active 166 *scan on all world regulatory domains 167 */ 168 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 169 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 170 171 // regulatory.h alpha2 172 // * 00 - World regulatory domain 173 // * 99 - built by driver but a specific alpha2 cannot be determined 174 // * 98 - result of an intersection between two regulatory domains 175 // * 97 - regulatory domain has not yet been configured 176 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 177 .n_reg_rules = 2, 178 .alpha2 = "99", 179 .dfs_region = NL80211_DFS_ETSI, 180 .reg_rules = { 181 //SDR_2GHZ_CH01_13, 182 //SDR_5GHZ_CH36_48, //Avoid radar! 183 SDR_2GHZ_CH01_14, 184 // SDR_5GHZ_CH36_64, 185 SDR_5GHZ_CH32_173, 186 } 187 }; 188 189 #define CHAN2G(_channel, _freq, _flags) { \ 190 .band = NL80211_BAND_2GHZ, \ 191 .hw_value = (_channel), \ 192 .center_freq = (_freq), \ 193 .flags = (_flags), \ 194 .max_antenna_gain = 0, \ 195 .max_power = 0, \ 196 } 197 198 #define CHAN5G(_channel, _freq, _flags) { \ 199 .band = NL80211_BAND_5GHZ, \ 200 .hw_value = (_channel), \ 201 .center_freq = (_freq), \ 202 .flags = (_flags), \ 203 .max_antenna_gain = 0, \ 204 .max_power = 0, \ 205 } 206 207 static const struct ieee80211_rate openwifi_5GHz_rates[] = { 208 { .bitrate = 10, .hw_value = 0, .flags = 0}, 209 { .bitrate = 20, .hw_value = 1, .flags = 0}, 210 { .bitrate = 55, .hw_value = 2, .flags = 0}, 211 { .bitrate = 110, .hw_value = 3, .flags = 0}, 212 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A}, 213 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 214 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 215 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 216 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 217 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 218 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 219 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 220 }; 221 222 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 223 { .bitrate = 10, .hw_value = 0, .flags = 0}, 224 { .bitrate = 20, .hw_value = 1, .flags = 0}, 225 { .bitrate = 55, .hw_value = 2, .flags = 0}, 226 { .bitrate = 110, .hw_value = 3, .flags = 0}, 227 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 228 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 229 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 230 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 231 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 232 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 233 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 234 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 235 }; 236 237 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 238 CHAN2G(1, 2412, 0), 239 CHAN2G(2, 2417, 0), 240 CHAN2G(3, 2422, 0), 241 CHAN2G(4, 2427, 0), 242 CHAN2G(5, 2432, 0), 243 CHAN2G(6, 2437, 0), 244 CHAN2G(7, 2442, 0), 245 CHAN2G(8, 2447, 0), 246 CHAN2G(9, 2452, 0), 247 CHAN2G(10, 2457, 0), 248 CHAN2G(11, 2462, 0), 249 CHAN2G(12, 2467, 0), 250 CHAN2G(13, 2472, 0), 251 CHAN2G(14, 2484, 0), 252 }; 253 254 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 255 CHAN5G(32, 5160, 0), 256 CHAN5G(34, 5170, 0), 257 CHAN5G(36, 5180, 0), 258 CHAN5G(38, 5190, 0), 259 CHAN5G(40, 5200, 0), 260 CHAN5G(42, 5210, 0), 261 CHAN5G(44, 5220, 0), 262 CHAN5G(46, 5230, 0), 263 CHAN5G(48, 5240, 0), 264 CHAN5G( 50, 5250, IEEE80211_CHAN_RADAR), 265 CHAN5G( 52, 5260, IEEE80211_CHAN_RADAR), 266 CHAN5G( 54, 5270, IEEE80211_CHAN_RADAR), 267 CHAN5G( 56, 5280, IEEE80211_CHAN_RADAR), 268 CHAN5G( 58, 5290, IEEE80211_CHAN_RADAR), 269 CHAN5G( 60, 5300, IEEE80211_CHAN_RADAR), 270 CHAN5G( 62, 5310, IEEE80211_CHAN_RADAR), 271 CHAN5G( 64, 5320, IEEE80211_CHAN_RADAR), 272 CHAN5G( 68, 5340, IEEE80211_CHAN_RADAR), 273 CHAN5G( 96, 5480, IEEE80211_CHAN_RADAR), 274 CHAN5G(100, 5500, IEEE80211_CHAN_RADAR), 275 CHAN5G(102, 5510, IEEE80211_CHAN_RADAR), 276 CHAN5G(104, 5520, IEEE80211_CHAN_RADAR), 277 CHAN5G(106, 5530, IEEE80211_CHAN_RADAR), 278 CHAN5G(108, 5540, IEEE80211_CHAN_RADAR), 279 CHAN5G(110, 5550, IEEE80211_CHAN_RADAR), 280 CHAN5G(112, 5560, IEEE80211_CHAN_RADAR), 281 CHAN5G(114, 5570, IEEE80211_CHAN_RADAR), 282 CHAN5G(116, 5580, IEEE80211_CHAN_RADAR), 283 CHAN5G(118, 5590, IEEE80211_CHAN_RADAR), 284 CHAN5G(120, 5600, IEEE80211_CHAN_RADAR), 285 CHAN5G(122, 5610, IEEE80211_CHAN_RADAR), 286 CHAN5G(124, 5620, IEEE80211_CHAN_RADAR), 287 CHAN5G(126, 5630, IEEE80211_CHAN_RADAR), 288 CHAN5G(128, 5640, IEEE80211_CHAN_RADAR), 289 CHAN5G(132, 5660, IEEE80211_CHAN_RADAR), 290 CHAN5G(134, 5670, IEEE80211_CHAN_RADAR), 291 CHAN5G(136, 5680, IEEE80211_CHAN_RADAR), 292 CHAN5G(138, 5690, IEEE80211_CHAN_RADAR), 293 CHAN5G(140, 5700, IEEE80211_CHAN_RADAR), 294 CHAN5G(142, 5710, IEEE80211_CHAN_RADAR), 295 CHAN5G(144, 5720, IEEE80211_CHAN_RADAR), 296 CHAN5G(149, 5745, IEEE80211_CHAN_RADAR), 297 CHAN5G(151, 5755, IEEE80211_CHAN_RADAR), 298 CHAN5G(153, 5765, IEEE80211_CHAN_RADAR), 299 CHAN5G(155, 5775, IEEE80211_CHAN_RADAR), 300 CHAN5G(157, 5785, IEEE80211_CHAN_RADAR), 301 CHAN5G(159, 5795, IEEE80211_CHAN_RADAR), 302 CHAN5G(161, 5805, IEEE80211_CHAN_RADAR), 303 // CHAN5G(163, 5815, IEEE80211_CHAN_RADAR), 304 CHAN5G(165, 5825, IEEE80211_CHAN_RADAR), 305 CHAN5G(167, 5835, IEEE80211_CHAN_RADAR), 306 CHAN5G(169, 5845, IEEE80211_CHAN_RADAR), 307 CHAN5G(171, 5855, IEEE80211_CHAN_RADAR), 308 CHAN5G(173, 5865, IEEE80211_CHAN_RADAR), 309 }; 310 311 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 312 { .max = MAX_NUM_VIF, .types = BIT(NL80211_IFTYPE_STATION) }, 313 { .max = MAX_NUM_VIF, .types = 314 #ifdef CONFIG_MAC80211_MESH 315 BIT(NL80211_IFTYPE_MESH_POINT) | 316 #endif 317 BIT(NL80211_IFTYPE_AP)}, 318 }; 319 320 static const struct ieee80211_iface_combination openwifi_if_comb = { 321 .limits = openwifi_if_limits, 322 .n_limits = ARRAY_SIZE(openwifi_if_limits), 323 .max_interfaces = MAX_NUM_VIF, 324 .num_different_channels = 1, 325 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 326 BIT(NL80211_CHAN_WIDTH_20) | 327 BIT(NL80211_CHAN_WIDTH_40) | 328 BIT(NL80211_CHAN_WIDTH_80), 329 }; 330 331 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}; 332 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}; 333 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}; 334 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}; 335 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 336 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}; 337 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 338 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 339 340 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 341 struct cf_axi_dds_state { 342 struct device *dev_spi; 343 struct clk *clk; 344 struct cf_axi_dds_chip_info *chip_info; 345 struct gpio_desc *plddrbypass_gpio; 346 struct gpio_desc *interpolation_gpio; 347 348 bool standalone; 349 bool dp_disable; 350 bool enable; 351 bool pl_dma_fifo_en; 352 enum fifo_ctrl gpio_dma_fifo_ctrl; 353 354 struct iio_info iio_info; 355 size_t regs_size; 356 void __iomem *regs; 357 void __iomem *slave_regs; 358 void __iomem *master_regs; 359 u64 dac_clk; 360 unsigned int ddr_dds_interp_en; 361 unsigned int cached_freq[16]; 362 unsigned int version; 363 unsigned int have_slave_channels; 364 unsigned int interpolation_factor; 365 struct notifier_block clk_nb; 366 }; 367 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 368 369 #define RX_DMA_CYCLIC_MODE 370 struct openwifi_priv { 371 struct platform_device *pdev; 372 struct ieee80211_vif *vif[MAX_NUM_VIF]; 373 374 const struct openwifi_rf_ops *rf; 375 enum openwifi_fpga_type fpga_type; 376 377 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 378 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 379 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 380 struct ctrl_outs_control ctrl_out; 381 382 int rx_freq_offset_to_lo_MHz; 383 int tx_freq_offset_to_lo_MHz; 384 u32 rf_bw; 385 u32 actual_rx_lo; 386 u32 actual_tx_lo; 387 388 struct ieee80211_rate rates_2GHz[12]; 389 struct ieee80211_rate rates_5GHz[12]; 390 struct ieee80211_channel channels_2GHz[14]; 391 struct ieee80211_channel channels_5GHz[53]; 392 struct ieee80211_supported_band band_2GHz; 393 struct ieee80211_supported_band band_5GHz; 394 bool rfkill_off; 395 u8 runtime_tx_ant_cfg; 396 u8 runtime_rx_ant_cfg; 397 398 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 399 400 enum rx_intf_mode rx_intf_cfg; 401 enum tx_intf_mode tx_intf_cfg; 402 enum openofdm_rx_mode openofdm_rx_cfg; 403 enum openofdm_tx_mode openofdm_tx_cfg; 404 enum xpu_mode xpu_cfg; 405 406 int irq_rx; 407 int irq_tx; 408 409 // u32 call_counter; 410 u8 *rx_cyclic_buf; 411 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 412 struct dma_chan *rx_chan; 413 struct dma_async_tx_descriptor *rxd; 414 dma_cookie_t rx_cookie; 415 416 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 417 struct scatterlist tx_sg; 418 struct dma_chan *tx_chan; 419 struct dma_async_tx_descriptor *txd; 420 dma_cookie_t tx_cookie; 421 // struct completion tx_dma_complete; 422 // bool openwifi_tx_first_time_run; 423 424 // int phy_tx_sn; 425 u32 slice_idx; 426 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 427 u8 mac_addr[ETH_ALEN]; 428 u16 seqno; 429 430 bool use_short_slot; 431 u8 band; 432 u16 channel; 433 434 u32 ampdu_reference; 435 436 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 437 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 438 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 439 int rf_reg_val[MAX_NUM_RF_REG]; 440 int last_auto_fpga_lbt_th; 441 // u8 num_led; 442 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 443 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 444 445 spinlock_t lock; 446 }; 447 448 #endif /* OPENWIFI_SDR */ 449