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 // ------------ software reg definition ------------ 76 #define MAX_NUM_DRV_REG 8 77 #define DRV_TX_REG_IDX_RATE 0 78 #define DRV_TX_REG_IDX_FREQ_BW_CFG 1 79 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 80 81 #define DRV_RX_REG_IDX_FREQ_BW_CFG 1 82 #define DRV_RX_REG_IDX_EXTRA_FO 2 83 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 84 85 #define DRV_XPU_REG_IDX_LBT_TH 0 86 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 87 88 // ------end of software reg definition ------------ 89 90 #define MAX_NUM_VIF 4 91 92 //#define LEN_PHY_HEADER 16 93 #define LEN_PHY_CRC 4 94 #define LEN_MPDU_DELIM 4 95 96 #define RING_ROOM_THRESHOLD 4 97 #define NUM_BIT_NUM_TX_BD 6 98 #define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v 99 100 #ifdef USE_NEW_RX_INTERRUPT 101 #define NUM_RX_BD 8 102 #else 103 #define NUM_RX_BD 16 104 #endif 105 106 #define TX_BD_BUF_SIZE (8192) 107 #define RX_BD_BUF_SIZE (8192) 108 109 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 110 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 111 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 112 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 113 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 114 115 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 116 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 117 118 #define SDR_SUPPORTED_FILTERS \ 119 (FIF_ALLMULTI | \ 120 FIF_BCN_PRBRESP_PROMISC | \ 121 FIF_CONTROL | \ 122 FIF_OTHER_BSS | \ 123 FIF_PSPOLL | \ 124 FIF_PROBE_REQ) 125 126 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 127 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 128 129 /* 5G chan 36 - chan 64*/ 130 #define SDR_5GHZ_CH36_64 \ 131 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 132 /* 5G chan 36 - chan 48*/ 133 #define SDR_5GHZ_CH36_48 \ 134 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 135 136 /* 137 *Only these channels all allow active 138 *scan on all world regulatory domains 139 */ 140 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 141 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 142 143 // regulatory.h alpha2 144 // * 00 - World regulatory domain 145 // * 99 - built by driver but a specific alpha2 cannot be determined 146 // * 98 - result of an intersection between two regulatory domains 147 // * 97 - regulatory domain has not yet been configured 148 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 149 .n_reg_rules = 2, 150 .alpha2 = "99", 151 .dfs_region = NL80211_DFS_ETSI, 152 .reg_rules = { 153 //SDR_2GHZ_CH01_13, 154 //SDR_5GHZ_CH36_48, //Avoid radar! 155 SDR_2GHZ_CH01_14, 156 SDR_5GHZ_CH36_64, 157 } 158 }; 159 160 #define CHAN2G(_channel, _freq, _flags) { \ 161 .band = NL80211_BAND_2GHZ, \ 162 .hw_value = (_channel), \ 163 .center_freq = (_freq), \ 164 .flags = (_flags), \ 165 .max_antenna_gain = 0, \ 166 .max_power = 0, \ 167 } 168 169 #define CHAN5G(_channel, _freq, _flags) { \ 170 .band = NL80211_BAND_5GHZ, \ 171 .hw_value = (_channel), \ 172 .center_freq = (_freq), \ 173 .flags = (_flags), \ 174 .max_antenna_gain = 0, \ 175 .max_power = 0, \ 176 } 177 178 static const struct ieee80211_rate openwifi_5GHz_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_A}, 184 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 185 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 186 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 187 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 188 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 189 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 190 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 191 }; 192 193 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 194 { .bitrate = 10, .hw_value = 0, .flags = 0}, 195 { .bitrate = 20, .hw_value = 1, .flags = 0}, 196 { .bitrate = 55, .hw_value = 2, .flags = 0}, 197 { .bitrate = 110, .hw_value = 3, .flags = 0}, 198 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 199 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 200 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 201 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 202 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 203 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 204 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 205 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 206 }; 207 208 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 209 CHAN2G(1, 2412, 0), 210 CHAN2G(2, 2417, 0), 211 CHAN2G(3, 2422, 0), 212 CHAN2G(4, 2427, 0), 213 CHAN2G(5, 2432, 0), 214 CHAN2G(6, 2437, 0), 215 CHAN2G(7, 2442, 0), 216 CHAN2G(8, 2447, 0), 217 CHAN2G(9, 2452, 0), 218 CHAN2G(10, 2457, 0), 219 CHAN2G(11, 2462, 0), 220 CHAN2G(12, 2467, 0), 221 CHAN2G(13, 2472, 0), 222 CHAN2G(14, 2484, 0), 223 }; 224 225 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 226 CHAN5G(36, 5180, 0), 227 CHAN5G(38, 5190, 0), 228 CHAN5G(40, 5200, 0), 229 CHAN5G(42, 5210, 0), 230 CHAN5G(44, 5220, 0), 231 CHAN5G(46, 5230, 0), 232 CHAN5G(48, 5240, 0), 233 CHAN5G(52, 5260, IEEE80211_CHAN_RADAR), 234 CHAN5G(56, 5280, IEEE80211_CHAN_RADAR), 235 CHAN5G(60, 5300, IEEE80211_CHAN_RADAR), 236 CHAN5G(64, 5320, IEEE80211_CHAN_RADAR), 237 // CHAN5G(100, 5500, 0), 238 // CHAN5G(104, 5520, 0), 239 // CHAN5G(108, 5540, 0), 240 // CHAN5G(112, 5560, 0), 241 // CHAN5G(116, 5580, 0), 242 // CHAN5G(120, 5600, 0), 243 // CHAN5G(124, 5620, 0), 244 // CHAN5G(128, 5640, 0), 245 // CHAN5G(132, 5660, 0), 246 // CHAN5G(136, 5680, 0), 247 // CHAN5G(140, 5700, 0), 248 // CHAN5G(144, 5720, 0), 249 // CHAN5G(149, 5745, 0), 250 // CHAN5G(153, 5765, 0), 251 // CHAN5G(157, 5785, 0), 252 // CHAN5G(161, 5805, 0), 253 // CHAN5G(165, 5825, 0), 254 // CHAN5G(169, 5845, 0), 255 }; 256 257 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 258 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) }, 259 { .max = 4, .types = 260 #ifdef CONFIG_MAC80211_MESH 261 BIT(NL80211_IFTYPE_MESH_POINT) | 262 #endif 263 BIT(NL80211_IFTYPE_AP) }, 264 }; 265 266 static const struct ieee80211_iface_combination openwifi_if_comb = { 267 .limits = openwifi_if_limits, 268 .n_limits = ARRAY_SIZE(openwifi_if_limits), 269 .max_interfaces = 2048, 270 .num_different_channels = 1, 271 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 272 BIT(NL80211_CHAN_WIDTH_20) | 273 BIT(NL80211_CHAN_WIDTH_40) | 274 BIT(NL80211_CHAN_WIDTH_80), 275 }; 276 277 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}; 278 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}; 279 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}; 280 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}; 281 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 282 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}; 283 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 284 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 285 286 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 287 struct cf_axi_dds_state { 288 struct device *dev_spi; 289 struct clk *clk; 290 struct cf_axi_dds_chip_info *chip_info; 291 struct gpio_desc *plddrbypass_gpio; 292 struct gpio_desc *interpolation_gpio; 293 294 bool standalone; 295 bool dp_disable; 296 bool enable; 297 bool pl_dma_fifo_en; 298 enum fifo_ctrl gpio_dma_fifo_ctrl; 299 300 struct iio_info iio_info; 301 size_t regs_size; 302 void __iomem *regs; 303 void __iomem *slave_regs; 304 void __iomem *master_regs; 305 u64 dac_clk; 306 unsigned int ddr_dds_interp_en; 307 unsigned int cached_freq[16]; 308 unsigned int version; 309 unsigned int have_slave_channels; 310 unsigned int interpolation_factor; 311 struct notifier_block clk_nb; 312 }; 313 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 314 315 #define RX_DMA_CYCLIC_MODE 316 struct openwifi_priv { 317 struct platform_device *pdev; 318 struct ieee80211_vif *vif[MAX_NUM_VIF]; 319 320 const struct openwifi_rf_ops *rf; 321 enum openwifi_fpga_type fpga_type; 322 323 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 324 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 325 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 326 struct ctrl_outs_control ctrl_out; 327 328 int rx_freq_offset_to_lo_MHz; 329 int tx_freq_offset_to_lo_MHz; 330 u32 rf_bw; 331 u32 actual_rx_lo; 332 333 struct ieee80211_rate rates_2GHz[12]; 334 struct ieee80211_rate rates_5GHz[12]; 335 struct ieee80211_channel channels_2GHz[14]; 336 struct ieee80211_channel channels_5GHz[11]; 337 struct ieee80211_supported_band band_2GHz; 338 struct ieee80211_supported_band band_5GHz; 339 bool rfkill_off; 340 341 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 342 343 enum rx_intf_mode rx_intf_cfg; 344 enum tx_intf_mode tx_intf_cfg; 345 enum openofdm_rx_mode openofdm_rx_cfg; 346 enum openofdm_tx_mode openofdm_tx_cfg; 347 enum xpu_mode xpu_cfg; 348 349 int irq_rx; 350 int irq_tx; 351 352 // u32 call_counter; 353 u8 *rx_cyclic_buf; 354 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 355 struct dma_chan *rx_chan; 356 struct dma_async_tx_descriptor *rxd; 357 dma_cookie_t rx_cookie; 358 359 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 360 struct scatterlist tx_sg; 361 struct dma_chan *tx_chan; 362 struct dma_async_tx_descriptor *txd; 363 dma_cookie_t tx_cookie; 364 // struct completion tx_dma_complete; 365 // bool openwifi_tx_first_time_run; 366 367 // int phy_tx_sn; 368 u32 slice_idx; 369 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 370 u8 mac_addr[ETH_ALEN]; 371 u16 seqno; 372 373 bool use_short_slot; 374 u8 band; 375 u16 channel, tid; 376 377 u32 ampdu_reference; 378 379 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 380 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 381 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 382 int last_auto_fpga_lbt_th; 383 // u8 num_led; 384 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 385 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 386 387 spinlock_t lock; 388 }; 389 390 #endif /* OPENWIFI_SDR */ 391