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 bool aggr_flag; 39 u16 seq_no; 40 struct sk_buff *skb_linked; 41 dma_addr_t dma_mapping_addr; 42 // u32 reserved; 43 } __packed; 44 45 struct openwifi_ring { 46 struct openwifi_buffer_descriptor *bds; 47 u32 bd_wr_idx; 48 u32 bd_rd_idx; 49 u32 stop_flag; // track the stop/wake status between tx interrupt and openwifi_tx 50 // u32 num_dma_symbol_request; 51 // u32 reserved; 52 } __packed; 53 54 struct openwifi_vif { 55 struct ieee80211_hw *dev; 56 57 int idx; // this vif's idx on the dev 58 59 /* beaconing */ 60 struct delayed_work beacon_work; 61 bool enable_beacon; 62 }; 63 64 union u32_byte4 { 65 u32 a; 66 u8 c[4]; 67 }; 68 union u16_byte2 { 69 u16 a; 70 u8 c[2]; 71 }; 72 73 #define MAX_NUM_LED 4 74 #define OPENWIFI_LED_MAX_NAME_LEN 32 75 76 // ------------ software reg definition ------------ 77 #define MAX_NUM_DRV_REG 8 78 #define DRV_TX_REG_IDX_RATE 0 79 #define DRV_TX_REG_IDX_FREQ_BW_CFG 1 80 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 81 82 #define DRV_RX_REG_IDX_FREQ_BW_CFG 1 83 #define DRV_RX_REG_IDX_EXTRA_FO 2 84 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 85 86 #define DRV_XPU_REG_IDX_LBT_TH 0 87 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 88 89 // ------end of software reg definition ------------ 90 91 #define MAX_NUM_VIF 4 92 93 //#define LEN_PHY_HEADER 16 94 #define LEN_PHY_CRC 4 95 #define LEN_MPDU_DELIM 4 96 97 #define RING_ROOM_THRESHOLD 4 98 #define NUM_BIT_NUM_TX_BD 6 99 #define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v 100 101 #ifdef USE_NEW_RX_INTERRUPT 102 #define NUM_RX_BD 8 103 #else 104 #define NUM_RX_BD 16 105 #endif 106 107 #define TX_BD_BUF_SIZE (8192) 108 #define RX_BD_BUF_SIZE (8192) 109 110 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 111 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 112 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 113 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 114 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 115 116 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 117 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 118 119 #define SDR_SUPPORTED_FILTERS \ 120 (FIF_ALLMULTI | \ 121 FIF_BCN_PRBRESP_PROMISC | \ 122 FIF_CONTROL | \ 123 FIF_OTHER_BSS | \ 124 FIF_PSPOLL | \ 125 FIF_PROBE_REQ) 126 127 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 128 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 129 130 /* 5G chan 36 - chan 64*/ 131 #define SDR_5GHZ_CH36_64 \ 132 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 133 /* 5G chan 36 - chan 48*/ 134 #define SDR_5GHZ_CH36_48 \ 135 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 136 137 /* 138 *Only these channels all allow active 139 *scan on all world regulatory domains 140 */ 141 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 142 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 143 144 // regulatory.h alpha2 145 // * 00 - World regulatory domain 146 // * 99 - built by driver but a specific alpha2 cannot be determined 147 // * 98 - result of an intersection between two regulatory domains 148 // * 97 - regulatory domain has not yet been configured 149 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 150 .n_reg_rules = 2, 151 .alpha2 = "99", 152 .dfs_region = NL80211_DFS_ETSI, 153 .reg_rules = { 154 //SDR_2GHZ_CH01_13, 155 //SDR_5GHZ_CH36_48, //Avoid radar! 156 SDR_2GHZ_CH01_14, 157 SDR_5GHZ_CH36_64, 158 } 159 }; 160 161 #define CHAN2G(_channel, _freq, _flags) { \ 162 .band = NL80211_BAND_2GHZ, \ 163 .hw_value = (_channel), \ 164 .center_freq = (_freq), \ 165 .flags = (_flags), \ 166 .max_antenna_gain = 0, \ 167 .max_power = 0, \ 168 } 169 170 #define CHAN5G(_channel, _freq, _flags) { \ 171 .band = NL80211_BAND_5GHZ, \ 172 .hw_value = (_channel), \ 173 .center_freq = (_freq), \ 174 .flags = (_flags), \ 175 .max_antenna_gain = 0, \ 176 .max_power = 0, \ 177 } 178 179 static const struct ieee80211_rate openwifi_5GHz_rates[] = { 180 { .bitrate = 10, .hw_value = 0, .flags = 0}, 181 { .bitrate = 20, .hw_value = 1, .flags = 0}, 182 { .bitrate = 55, .hw_value = 2, .flags = 0}, 183 { .bitrate = 110, .hw_value = 3, .flags = 0}, 184 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A}, 185 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 186 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 187 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 188 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 189 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 190 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 191 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 192 }; 193 194 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 195 { .bitrate = 10, .hw_value = 0, .flags = 0}, 196 { .bitrate = 20, .hw_value = 1, .flags = 0}, 197 { .bitrate = 55, .hw_value = 2, .flags = 0}, 198 { .bitrate = 110, .hw_value = 3, .flags = 0}, 199 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 200 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 201 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 202 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 203 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 204 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 205 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 206 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 207 }; 208 209 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 210 CHAN2G(1, 2412, 0), 211 CHAN2G(2, 2417, 0), 212 CHAN2G(3, 2422, 0), 213 CHAN2G(4, 2427, 0), 214 CHAN2G(5, 2432, 0), 215 CHAN2G(6, 2437, 0), 216 CHAN2G(7, 2442, 0), 217 CHAN2G(8, 2447, 0), 218 CHAN2G(9, 2452, 0), 219 CHAN2G(10, 2457, 0), 220 CHAN2G(11, 2462, 0), 221 CHAN2G(12, 2467, 0), 222 CHAN2G(13, 2472, 0), 223 CHAN2G(14, 2484, 0), 224 }; 225 226 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 227 CHAN5G(36, 5180, 0), 228 CHAN5G(38, 5190, 0), 229 CHAN5G(40, 5200, 0), 230 CHAN5G(42, 5210, 0), 231 CHAN5G(44, 5220, 0), 232 CHAN5G(46, 5230, 0), 233 CHAN5G(48, 5240, 0), 234 CHAN5G(52, 5260, IEEE80211_CHAN_RADAR), 235 CHAN5G(56, 5280, IEEE80211_CHAN_RADAR), 236 CHAN5G(60, 5300, IEEE80211_CHAN_RADAR), 237 CHAN5G(64, 5320, IEEE80211_CHAN_RADAR), 238 // CHAN5G(100, 5500, 0), 239 // CHAN5G(104, 5520, 0), 240 // CHAN5G(108, 5540, 0), 241 // CHAN5G(112, 5560, 0), 242 // CHAN5G(116, 5580, 0), 243 // CHAN5G(120, 5600, 0), 244 // CHAN5G(124, 5620, 0), 245 // CHAN5G(128, 5640, 0), 246 // CHAN5G(132, 5660, 0), 247 // CHAN5G(136, 5680, 0), 248 // CHAN5G(140, 5700, 0), 249 // CHAN5G(144, 5720, 0), 250 // CHAN5G(149, 5745, 0), 251 // CHAN5G(153, 5765, 0), 252 // CHAN5G(157, 5785, 0), 253 // CHAN5G(161, 5805, 0), 254 // CHAN5G(165, 5825, 0), 255 // CHAN5G(169, 5845, 0), 256 }; 257 258 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 259 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) }, 260 { .max = 4, .types = 261 #ifdef CONFIG_MAC80211_MESH 262 BIT(NL80211_IFTYPE_MESH_POINT) | 263 #endif 264 BIT(NL80211_IFTYPE_AP) }, 265 }; 266 267 static const struct ieee80211_iface_combination openwifi_if_comb = { 268 .limits = openwifi_if_limits, 269 .n_limits = ARRAY_SIZE(openwifi_if_limits), 270 .max_interfaces = 2048, 271 .num_different_channels = 1, 272 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 273 BIT(NL80211_CHAN_WIDTH_20) | 274 BIT(NL80211_CHAN_WIDTH_40) | 275 BIT(NL80211_CHAN_WIDTH_80), 276 }; 277 278 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}; 279 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}; 280 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}; 281 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}; 282 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 283 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}; 284 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 285 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 286 287 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 288 struct cf_axi_dds_state { 289 struct device *dev_spi; 290 struct clk *clk; 291 struct cf_axi_dds_chip_info *chip_info; 292 struct gpio_desc *plddrbypass_gpio; 293 struct gpio_desc *interpolation_gpio; 294 295 bool standalone; 296 bool dp_disable; 297 bool enable; 298 bool pl_dma_fifo_en; 299 enum fifo_ctrl gpio_dma_fifo_ctrl; 300 301 struct iio_info iio_info; 302 size_t regs_size; 303 void __iomem *regs; 304 void __iomem *slave_regs; 305 void __iomem *master_regs; 306 u64 dac_clk; 307 unsigned int ddr_dds_interp_en; 308 unsigned int cached_freq[16]; 309 unsigned int version; 310 unsigned int have_slave_channels; 311 unsigned int interpolation_factor; 312 struct notifier_block clk_nb; 313 }; 314 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 315 316 #define RX_DMA_CYCLIC_MODE 317 struct openwifi_priv { 318 struct platform_device *pdev; 319 struct ieee80211_vif *vif[MAX_NUM_VIF]; 320 321 const struct openwifi_rf_ops *rf; 322 enum openwifi_fpga_type fpga_type; 323 324 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 325 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 326 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 327 struct ctrl_outs_control ctrl_out; 328 329 int rx_freq_offset_to_lo_MHz; 330 int tx_freq_offset_to_lo_MHz; 331 u32 rf_bw; 332 u32 actual_rx_lo; 333 334 struct ieee80211_rate rates_2GHz[12]; 335 struct ieee80211_rate rates_5GHz[12]; 336 struct ieee80211_channel channels_2GHz[14]; 337 struct ieee80211_channel channels_5GHz[11]; 338 struct ieee80211_supported_band band_2GHz; 339 struct ieee80211_supported_band band_5GHz; 340 bool rfkill_off; 341 342 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 343 344 enum rx_intf_mode rx_intf_cfg; 345 enum tx_intf_mode tx_intf_cfg; 346 enum openofdm_rx_mode openofdm_rx_cfg; 347 enum openofdm_tx_mode openofdm_tx_cfg; 348 enum xpu_mode xpu_cfg; 349 350 int irq_rx; 351 int irq_tx; 352 353 // u32 call_counter; 354 u8 *rx_cyclic_buf; 355 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 356 struct dma_chan *rx_chan; 357 struct dma_async_tx_descriptor *rxd; 358 dma_cookie_t rx_cookie; 359 360 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 361 struct scatterlist tx_sg; 362 struct dma_chan *tx_chan; 363 struct dma_async_tx_descriptor *txd; 364 dma_cookie_t tx_cookie; 365 // struct completion tx_dma_complete; 366 // bool openwifi_tx_first_time_run; 367 368 // int phy_tx_sn; 369 u32 slice_idx; 370 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 371 u8 mac_addr[ETH_ALEN]; 372 u16 seqno; 373 374 bool use_short_slot; 375 u8 band; 376 u16 channel, tid; 377 378 u32 ampdu_reference; 379 380 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 381 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 382 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 383 int last_auto_fpga_lbt_th; 384 // u8 num_led; 385 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 386 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 387 388 spinlock_t lock; 389 }; 390 391 #endif /* OPENWIFI_SDR */ 392