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 queued_cnt; 50 u32 stop_flag; // track the stop/wake status between tx interrupt and openwifi_tx 51 // u32 num_dma_symbol_request; 52 // u32 reserved; 53 } __packed; 54 55 struct openwifi_vif { 56 struct ieee80211_hw *dev; 57 58 int idx; // this vif's idx on the dev 59 60 /* beaconing */ 61 struct delayed_work beacon_work; 62 bool enable_beacon; 63 }; 64 65 union u32_byte4 { 66 u32 a; 67 u8 c[4]; 68 }; 69 union u16_byte2 { 70 u16 a; 71 u8 c[2]; 72 }; 73 74 #define MAX_NUM_LED 4 75 #define OPENWIFI_LED_MAX_NAME_LEN 32 76 77 // ------------ software reg definition ------------ 78 #define MAX_NUM_DRV_REG 8 79 #define DRV_TX_REG_IDX_RATE 0 80 #define DRV_TX_REG_IDX_FREQ_BW_CFG 1 81 #define DRV_TX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 82 83 #define DRV_RX_REG_IDX_FREQ_BW_CFG 1 84 #define DRV_RX_REG_IDX_EXTRA_FO 2 85 #define DRV_RX_REG_IDX_PRINT_CFG (MAX_NUM_DRV_REG-1) 86 87 #define DRV_XPU_REG_IDX_LBT_TH 0 88 #define DRV_XPU_REG_IDX_GIT_REV (MAX_NUM_DRV_REG-1) 89 90 // ------end of software reg definition ------------ 91 92 #define MAX_NUM_VIF 4 93 94 //#define LEN_PHY_HEADER 16 95 #define LEN_PHY_CRC 4 96 #define LEN_MPDU_DELIM 4 97 98 #define RING_ROOM_THRESHOLD 4 99 #define NUM_BIT_NUM_TX_BD 6 100 #define NUM_TX_BD (1<<NUM_BIT_NUM_TX_BD) // !!! should align to the fifo size in tx_bit_intf.v 101 102 #ifdef USE_NEW_RX_INTERRUPT 103 #define NUM_RX_BD 8 104 #else 105 #define NUM_RX_BD 16 106 #endif 107 108 #define TX_BD_BUF_SIZE (8192) 109 #define RX_BD_BUF_SIZE (8192) 110 111 #define NUM_BIT_MAX_NUM_HW_QUEUE 2 112 #define MAX_NUM_HW_QUEUE 4 // number of queue in FPGA 113 #define MAX_NUM_SW_QUEUE 4 // number of queue in Linux, depends on the number we report by dev->queues in openwifi_dev_probe 114 #define NUM_BIT_MAX_PHY_TX_SN 10 // decrease 12 to 10 to reserve 2 bits storing related linux prio idx 115 #define MAX_PHY_TX_SN ((1<<NUM_BIT_MAX_PHY_TX_SN)-1) 116 117 #define AD9361_RADIO_OFF_TX_ATT 89750 //please align with ad9361.c 118 #define AD9361_RADIO_ON_TX_ATT 000 //please align with rf_init.sh 119 120 #define SDR_SUPPORTED_FILTERS \ 121 (FIF_ALLMULTI | \ 122 FIF_BCN_PRBRESP_PROMISC | \ 123 FIF_CONTROL | \ 124 FIF_OTHER_BSS | \ 125 FIF_PSPOLL | \ 126 FIF_PROBE_REQ) 127 128 #define HIGH_PRIORITY_DISCARD_FLAG ((~0x040)<<16) // don't force drop OTHER_BSS by high priority discard 129 //#define HIGH_PRIORITY_DISCARD_FLAG ((~0x140)<<16) // don't force drop OTHER_BSS and PROB_REQ by high priority discard 130 131 /* 5G chan 36 - chan 64*/ 132 #define SDR_5GHZ_CH36_64 \ 133 REG_RULE(5150-10, 5350+10, 80, 0, 20, 0) 134 /* 5G chan 36 - chan 48*/ 135 #define SDR_5GHZ_CH36_48 \ 136 REG_RULE(5150-10, 5270+10, 80, 0, 20, 0) 137 138 /* 139 *Only these channels all allow active 140 *scan on all world regulatory domains 141 */ 142 #define SDR_2GHZ_CH01_13 REG_RULE(2412-10, 2472+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 143 #define SDR_2GHZ_CH01_14 REG_RULE(2412-10, 2484+10, 40, 0, 20, NL80211_RRF_NO_CCK) // disable 11b 144 145 // regulatory.h alpha2 146 // * 00 - World regulatory domain 147 // * 99 - built by driver but a specific alpha2 cannot be determined 148 // * 98 - result of an intersection between two regulatory domains 149 // * 97 - regulatory domain has not yet been configured 150 static const struct ieee80211_regdomain sdr_regd = { // for wiphy_apply_custom_regulatory 151 .n_reg_rules = 2, 152 .alpha2 = "99", 153 .dfs_region = NL80211_DFS_ETSI, 154 .reg_rules = { 155 //SDR_2GHZ_CH01_13, 156 //SDR_5GHZ_CH36_48, //Avoid radar! 157 SDR_2GHZ_CH01_14, 158 SDR_5GHZ_CH36_64, 159 } 160 }; 161 162 #define CHAN2G(_channel, _freq, _flags) { \ 163 .band = NL80211_BAND_2GHZ, \ 164 .hw_value = (_channel), \ 165 .center_freq = (_freq), \ 166 .flags = (_flags), \ 167 .max_antenna_gain = 0, \ 168 .max_power = 0, \ 169 } 170 171 #define CHAN5G(_channel, _freq, _flags) { \ 172 .band = NL80211_BAND_5GHZ, \ 173 .hw_value = (_channel), \ 174 .center_freq = (_freq), \ 175 .flags = (_flags), \ 176 .max_antenna_gain = 0, \ 177 .max_power = 0, \ 178 } 179 180 static const struct ieee80211_rate openwifi_5GHz_rates[] = { 181 { .bitrate = 10, .hw_value = 0, .flags = 0}, 182 { .bitrate = 20, .hw_value = 1, .flags = 0}, 183 { .bitrate = 55, .hw_value = 2, .flags = 0}, 184 { .bitrate = 110, .hw_value = 3, .flags = 0}, 185 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_A}, 186 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_A}, 187 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_A}, 188 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_A}, 189 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_A}, 190 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_A}, 191 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_A}, 192 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_A}, 193 }; 194 195 static const struct ieee80211_rate openwifi_2GHz_rates[] = { 196 { .bitrate = 10, .hw_value = 0, .flags = 0}, 197 { .bitrate = 20, .hw_value = 1, .flags = 0}, 198 { .bitrate = 55, .hw_value = 2, .flags = 0}, 199 { .bitrate = 110, .hw_value = 3, .flags = 0}, 200 { .bitrate = 60, .hw_value = 4, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 201 { .bitrate = 90, .hw_value = 5, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 202 { .bitrate = 120, .hw_value = 6, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 203 { .bitrate = 180, .hw_value = 7, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 204 { .bitrate = 240, .hw_value = 8, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 205 { .bitrate = 360, .hw_value = 9, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 206 { .bitrate = 480, .hw_value = 10, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 207 { .bitrate = 540, .hw_value = 11, .flags = IEEE80211_RATE_MANDATORY_G|IEEE80211_RATE_ERP_G}, 208 }; 209 210 static const struct ieee80211_channel openwifi_2GHz_channels[] = { 211 CHAN2G(1, 2412, 0), 212 CHAN2G(2, 2417, 0), 213 CHAN2G(3, 2422, 0), 214 CHAN2G(4, 2427, 0), 215 CHAN2G(5, 2432, 0), 216 CHAN2G(6, 2437, 0), 217 CHAN2G(7, 2442, 0), 218 CHAN2G(8, 2447, 0), 219 CHAN2G(9, 2452, 0), 220 CHAN2G(10, 2457, 0), 221 CHAN2G(11, 2462, 0), 222 CHAN2G(12, 2467, 0), 223 CHAN2G(13, 2472, 0), 224 CHAN2G(14, 2484, 0), 225 }; 226 227 static const struct ieee80211_channel openwifi_5GHz_channels[] = { 228 CHAN5G(36, 5180, 0), 229 CHAN5G(38, 5190, 0), 230 CHAN5G(40, 5200, 0), 231 CHAN5G(42, 5210, 0), 232 CHAN5G(44, 5220, 0), 233 CHAN5G(46, 5230, 0), 234 CHAN5G(48, 5240, 0), 235 CHAN5G(52, 5260, IEEE80211_CHAN_RADAR), 236 CHAN5G(56, 5280, IEEE80211_CHAN_RADAR), 237 CHAN5G(60, 5300, IEEE80211_CHAN_RADAR), 238 CHAN5G(64, 5320, IEEE80211_CHAN_RADAR), 239 // CHAN5G(100, 5500, 0), 240 // CHAN5G(104, 5520, 0), 241 // CHAN5G(108, 5540, 0), 242 // CHAN5G(112, 5560, 0), 243 // CHAN5G(116, 5580, 0), 244 // CHAN5G(120, 5600, 0), 245 // CHAN5G(124, 5620, 0), 246 // CHAN5G(128, 5640, 0), 247 // CHAN5G(132, 5660, 0), 248 // CHAN5G(136, 5680, 0), 249 // CHAN5G(140, 5700, 0), 250 // CHAN5G(144, 5720, 0), 251 // CHAN5G(149, 5745, 0), 252 // CHAN5G(153, 5765, 0), 253 // CHAN5G(157, 5785, 0), 254 // CHAN5G(161, 5805, 0), 255 // CHAN5G(165, 5825, 0), 256 // CHAN5G(169, 5845, 0), 257 }; 258 259 static const struct ieee80211_iface_limit openwifi_if_limits[] = { 260 { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) }, 261 { .max = 4, .types = 262 #ifdef CONFIG_MAC80211_MESH 263 BIT(NL80211_IFTYPE_MESH_POINT) | 264 #endif 265 BIT(NL80211_IFTYPE_AP) }, 266 }; 267 268 static const struct ieee80211_iface_combination openwifi_if_comb = { 269 .limits = openwifi_if_limits, 270 .n_limits = ARRAY_SIZE(openwifi_if_limits), 271 .max_interfaces = 2048, 272 .num_different_channels = 1, 273 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 274 BIT(NL80211_CHAN_WIDTH_20) | 275 BIT(NL80211_CHAN_WIDTH_40) | 276 BIT(NL80211_CHAN_WIDTH_80), 277 }; 278 279 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}; 280 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}; 281 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}; 282 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}; 283 static const u16 wifi_n_dbps_table[16] = {24, 24, 24, 24, 24, 36, 48, 72, 96, 144, 192, 216, 0, 0, 0, 0}; 284 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}; 285 // static const u8 wifi_mcs_table[8] = {6,9,12,18,24,36,48,54}; 286 // static const u8 wifi_mcs_table_phy_tx[8] = {11,15,10,14,9,13,8,12}; 287 288 // ===== copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 289 struct cf_axi_dds_state { 290 struct device *dev_spi; 291 struct clk *clk; 292 struct cf_axi_dds_chip_info *chip_info; 293 struct gpio_desc *plddrbypass_gpio; 294 struct gpio_desc *interpolation_gpio; 295 296 bool standalone; 297 bool dp_disable; 298 bool enable; 299 bool pl_dma_fifo_en; 300 enum fifo_ctrl gpio_dma_fifo_ctrl; 301 302 struct iio_info iio_info; 303 size_t regs_size; 304 void __iomem *regs; 305 void __iomem *slave_regs; 306 void __iomem *master_regs; 307 u64 dac_clk; 308 unsigned int ddr_dds_interp_en; 309 unsigned int cached_freq[16]; 310 unsigned int version; 311 unsigned int have_slave_channels; 312 unsigned int interpolation_factor; 313 struct notifier_block clk_nb; 314 }; 315 // ===== end of copy from adi-linux/drivers/iio/frequency/cf_axi_dds.c ===== 316 317 #define RX_DMA_CYCLIC_MODE 318 struct openwifi_priv { 319 struct platform_device *pdev; 320 struct ieee80211_vif *vif[MAX_NUM_VIF]; 321 322 const struct openwifi_rf_ops *rf; 323 enum openwifi_fpga_type fpga_type; 324 325 struct cf_axi_dds_state *dds_st; //axi_ad9361 hdl ref design module, dac channel 326 struct axiadc_state *adc_st; //axi_ad9361 hdl ref design module, adc channel 327 struct ad9361_rf_phy *ad9361_phy; //ad9361 chip 328 struct ctrl_outs_control ctrl_out; 329 330 int rx_freq_offset_to_lo_MHz; 331 int tx_freq_offset_to_lo_MHz; 332 u32 rf_bw; 333 u32 actual_rx_lo; 334 335 struct ieee80211_rate rates_2GHz[12]; 336 struct ieee80211_rate rates_5GHz[12]; 337 struct ieee80211_channel channels_2GHz[14]; 338 struct ieee80211_channel channels_5GHz[11]; 339 struct ieee80211_supported_band band_2GHz; 340 struct ieee80211_supported_band band_5GHz; 341 bool rfkill_off; 342 343 int rssi_correction; // dynamic RSSI correction according to current channel in _rf_set_channel() 344 345 enum rx_intf_mode rx_intf_cfg; 346 enum tx_intf_mode tx_intf_cfg; 347 enum openofdm_rx_mode openofdm_rx_cfg; 348 enum openofdm_tx_mode openofdm_tx_cfg; 349 enum xpu_mode xpu_cfg; 350 351 int irq_rx; 352 int irq_tx; 353 354 // u32 call_counter; 355 u8 *rx_cyclic_buf; 356 dma_addr_t rx_cyclic_buf_dma_mapping_addr; 357 struct dma_chan *rx_chan; 358 struct dma_async_tx_descriptor *rxd; 359 dma_cookie_t rx_cookie; 360 361 struct openwifi_ring tx_ring[MAX_NUM_SW_QUEUE]; 362 struct scatterlist tx_sg; 363 struct dma_chan *tx_chan; 364 struct dma_async_tx_descriptor *txd; 365 dma_cookie_t tx_cookie; 366 // struct completion tx_dma_complete; 367 // bool openwifi_tx_first_time_run; 368 369 // int phy_tx_sn; 370 u32 slice_idx; 371 u32 dest_mac_addr_queue_map[MAX_NUM_HW_QUEUE]; 372 u8 mac_addr[ETH_ALEN]; 373 u16 seqno; 374 375 bool use_short_slot; 376 u8 band; 377 u16 channel, tid; 378 379 u32 ampdu_reference; 380 381 u32 drv_rx_reg_val[MAX_NUM_DRV_REG]; 382 u32 drv_tx_reg_val[MAX_NUM_DRV_REG]; 383 u32 drv_xpu_reg_val[MAX_NUM_DRV_REG]; 384 int last_auto_fpga_lbt_th; 385 // u8 num_led; 386 // struct led_classdev *led[MAX_NUM_LED];//zc706 has 4 user leds. please find openwifi_dev_probe to see how we get them. 387 // char led_name[MAX_NUM_LED][OPENWIFI_LED_MAX_NAME_LEN]; 388 389 spinlock_t lock; 390 }; 391 392 #endif /* OPENWIFI_SDR */ 393