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