developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2020 MediaTek Inc. */ |
| 3 | |
| 4 | #include <linux/firmware.h> |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 5 | #include "besra.h" |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 6 | #include "eeprom.h" |
| 7 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 8 | static int besra_eeprom_load_precal(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 9 | { |
| 10 | struct mt76_dev *mdev = &dev->mt76; |
| 11 | u8 *eeprom = mdev->eeprom.data; |
| 12 | u32 val = eeprom[MT_EE_DO_PRE_CAL]; |
| 13 | |
| 14 | if (!dev->flash_mode) |
| 15 | return 0; |
| 16 | |
| 17 | if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP)) |
| 18 | return 0; |
| 19 | |
| 20 | val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE; |
| 21 | dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL); |
| 22 | if (!dev->cal) |
| 23 | return -ENOMEM; |
| 24 | |
| 25 | return mt76_get_of_eeprom(mdev, dev->cal, MT_EE_PRECAL_V2, val); |
| 26 | } |
| 27 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 28 | static int besra_check_eeprom(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 29 | { |
| 30 | u8 *eeprom = dev->mt76.eeprom.data; |
| 31 | u16 val = get_unaligned_le16(eeprom); |
| 32 | |
| 33 | switch (val) { |
| 34 | case 0x7915: |
| 35 | case 0x7916: |
| 36 | case 0x7986: |
| 37 | return 0; |
| 38 | default: |
| 39 | return -EINVAL; |
| 40 | } |
| 41 | } |
| 42 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 43 | static char *besra_eeprom_name(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 44 | { |
| 45 | return MT7902_EEPROM_DEFAULT; |
| 46 | } |
| 47 | |
| 48 | static int |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 49 | besra_eeprom_load_default(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 50 | { |
| 51 | u8 *eeprom = dev->mt76.eeprom.data; |
| 52 | const struct firmware *fw = NULL; |
| 53 | int ret; |
| 54 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 55 | ret = request_firmware(&fw, besra_eeprom_name(dev), dev->mt76.dev); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 56 | if (ret) |
| 57 | return ret; |
| 58 | |
| 59 | if (!fw || !fw->data) { |
| 60 | dev_err(dev->mt76.dev, "Invalid default bin\n"); |
| 61 | ret = -EINVAL; |
| 62 | goto out; |
| 63 | } |
| 64 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 65 | memcpy(eeprom, fw->data, BESRA_EEPROM_SIZE); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 66 | dev->flash_mode = true; |
| 67 | |
| 68 | out: |
| 69 | release_firmware(fw); |
| 70 | |
| 71 | return ret; |
| 72 | } |
| 73 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 74 | static int besra_eeprom_load(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 75 | { |
| 76 | int ret; |
| 77 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 78 | ret = mt76_eeprom_init(&dev->mt76, BESRA_EEPROM_SIZE); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 79 | if (ret < 0) |
| 80 | return ret; |
| 81 | |
| 82 | if (ret) { |
| 83 | dev->flash_mode = true; |
| 84 | } else { |
| 85 | u8 free_block_num; |
| 86 | u32 block_num, i; |
| 87 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 88 | besra_mcu_get_eeprom_free_block(dev, &free_block_num); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 89 | /* efuse info not enough */ |
| 90 | if (free_block_num >= 29) |
| 91 | return -EINVAL; |
| 92 | |
| 93 | /* read eeprom data from efuse */ |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 94 | block_num = DIV_ROUND_UP(BESRA_EEPROM_SIZE, |
| 95 | BESRA_EEPROM_BLOCK_SIZE); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 96 | for (i = 0; i < block_num; i++) |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 97 | besra_mcu_get_eeprom(dev, |
| 98 | i * BESRA_EEPROM_BLOCK_SIZE); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 99 | } |
| 100 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 101 | return besra_check_eeprom(dev); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 102 | } |
| 103 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 104 | static void besra_eeprom_parse_band_config(struct besra_phy *phy) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 105 | { |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 106 | struct besra_dev *dev = phy->dev; |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 107 | u8 *eeprom = dev->mt76.eeprom.data; |
| 108 | u32 val; |
| 109 | |
| 110 | /* TODO: |
| 111 | * since default bin hasn't properly configured yet, |
| 112 | * currently hardcode band cap for bellwether */ |
| 113 | |
| 114 | /* val = eeprom[MT_EE_WIFI_CONF + phy->band_idx]; */ |
| 115 | /* val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val); */ |
| 116 | |
developer | 66cd209 | 2022-05-10 15:43:01 +0800 | [diff] [blame] | 117 | /* switch (val) { */ |
| 118 | /* case MT_EE_V2_BAND_SEL_5GHZ: */ |
| 119 | /* phy->mt76->cap.has_5ghz = true; */ |
| 120 | /* return; */ |
| 121 | /* case MT_EE_V2_BAND_SEL_6GHZ: */ |
| 122 | /* phy->mt76->cap.has_6ghz = true; */ |
| 123 | /* return; */ |
| 124 | /* case MT_EE_V2_BAND_SEL_5GHZ_6GHZ: */ |
| 125 | /* phy->mt76->cap.has_5ghz = true; */ |
| 126 | /* phy->mt76->cap.has_6ghz = true; */ |
| 127 | /* return; */ |
| 128 | /* default */ |
| 129 | /* phy->mt76->cap.has_2ghz = true; */ |
| 130 | /* return; */ |
| 131 | /* } */ |
| 132 | |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 133 | if (phy->band_idx == 2) |
| 134 | phy->mt76->cap.has_2ghz = true; |
developer | 66cd209 | 2022-05-10 15:43:01 +0800 | [diff] [blame] | 135 | else { |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 136 | phy->mt76->cap.has_5ghz = true; |
developer | 66cd209 | 2022-05-10 15:43:01 +0800 | [diff] [blame] | 137 | /* phy->mt76->cap.has_6ghz = true; */ |
| 138 | } |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 139 | } |
| 140 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 141 | void besra_eeprom_parse_hw_cap(struct besra_dev *dev, |
| 142 | struct besra_phy *phy) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 143 | { |
| 144 | u8 nss, nss_band, nss_band_max, *eeprom = dev->mt76.eeprom.data; |
| 145 | struct mt76_phy *mphy = phy->mt76; |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 146 | u8 phy_idx = besra_get_phy_id(phy); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 147 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 148 | besra_eeprom_parse_band_config(phy); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 149 | |
| 150 | /* read tx/rx mask from eeprom */ |
| 151 | nss = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH, |
| 152 | eeprom[MT_EE_WIFI_CONF + phy->band_idx]); |
| 153 | |
| 154 | if (!nss || nss > 4) |
| 155 | nss = 4; |
| 156 | |
| 157 | /* read tx/rx stream */ |
| 158 | nss_band = nss; |
| 159 | |
| 160 | if (dev->dbdc_support) { |
| 161 | nss_band = FIELD_GET(MT_EE_WIFI_CONF_STREAM_NUM, |
| 162 | eeprom[MT_EE_WIFI_CONF + 2 + phy->band_idx]); |
| 163 | |
| 164 | nss_band_max = MT_EE_NSS_MAX_DBDC_MA7986; |
| 165 | } else { |
| 166 | nss_band_max = MT_EE_NSS_MAX_MA7986; |
| 167 | } |
| 168 | |
| 169 | if (!nss_band || nss_band > nss_band_max) |
| 170 | nss_band = nss_band_max; |
| 171 | |
| 172 | if (nss_band > nss) { |
| 173 | dev_warn(dev->mt76.dev, |
| 174 | "nss mismatch, nss(%d) nss_band(%d) band(%d) phy_id(%d)\n", |
| 175 | nss, nss_band, phy->band_idx, phy_idx); |
| 176 | nss = nss_band; |
| 177 | } |
| 178 | |
| 179 | mphy->chainmask = BIT(nss) - 1; |
| 180 | switch (phy_idx) { |
| 181 | case MT_MAIN_PHY: |
| 182 | dev->chain_shift_ext = hweight8(mphy->chainmask); |
| 183 | dev->chain_shift_tri = dev->chain_shift_ext; |
| 184 | break; |
| 185 | case MT_EXT_PHY: |
| 186 | mphy->chainmask <<= dev->chain_shift_ext; |
| 187 | dev->chain_shift_tri += hweight8(mphy->chainmask); |
| 188 | break; |
| 189 | case MT_TRI_PHY: |
| 190 | mphy->chainmask <<= dev->chain_shift_tri; |
| 191 | break; |
| 192 | default: |
| 193 | break; |
| 194 | } |
| 195 | mphy->antenna_mask = BIT(nss_band) - 1; |
| 196 | dev->chainmask |= mphy->chainmask; |
| 197 | |
| 198 | dev_err(dev->mt76.dev, |
| 199 | "nss info, nss(%d) nss_band(%d) band(%d) phy_id(%d) chainmask(%08x) antenna_mask(%02x) dev chainmask(%08x)\n", |
| 200 | nss, nss_band, phy->band_idx, phy_idx, |
| 201 | mphy->chainmask, mphy->antenna_mask, dev->chainmask); |
| 202 | } |
| 203 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 204 | int besra_eeprom_init(struct besra_dev *dev) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 205 | { |
| 206 | int ret; |
| 207 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 208 | ret = besra_eeprom_load(dev); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 209 | if (ret < 0) { |
| 210 | if (ret != -EINVAL) |
| 211 | return ret; |
| 212 | |
| 213 | dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n"); |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 214 | ret = besra_eeprom_load_default(dev); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 215 | if (ret) |
| 216 | return ret; |
| 217 | } |
| 218 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 219 | ret = besra_eeprom_load_precal(dev); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 220 | if (ret) |
| 221 | return ret; |
| 222 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 223 | besra_eeprom_parse_hw_cap(dev, &dev->phy); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 224 | memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR, |
| 225 | ETH_ALEN); |
| 226 | |
| 227 | mt76_eeprom_override(&dev->mphy); |
| 228 | |
| 229 | return 0; |
| 230 | } |
| 231 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 232 | int besra_eeprom_get_target_power(struct besra_dev *dev, |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 233 | struct ieee80211_channel *chan, |
| 234 | u8 chain_idx) |
| 235 | { |
| 236 | u8 *eeprom = dev->mt76.eeprom.data; |
| 237 | int index, target_power; |
| 238 | bool tssi_on; |
| 239 | |
| 240 | if (chain_idx > 3) |
| 241 | return -EINVAL; |
| 242 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 243 | tssi_on = besra_tssi_enabled(dev, chan->band); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 244 | |
| 245 | if (chan->band == NL80211_BAND_2GHZ) { |
| 246 | index = MT_EE_TX0_POWER_2G_V2 + chain_idx * 3; |
| 247 | target_power = eeprom[index]; |
| 248 | |
| 249 | if (!tssi_on) |
| 250 | target_power += eeprom[index + 1]; |
| 251 | } else { |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 252 | int group = besra_get_channel_group(chan->hw_value); |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 253 | |
| 254 | index = MT_EE_TX0_POWER_5G_V2 + chain_idx * 12; |
| 255 | target_power = eeprom[index + group]; |
| 256 | |
| 257 | if (!tssi_on) |
| 258 | target_power += eeprom[index + 8]; |
| 259 | } |
| 260 | |
| 261 | return target_power; |
| 262 | } |
| 263 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 264 | s8 besra_eeprom_get_power_delta(struct besra_dev *dev, int band) |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 265 | { |
| 266 | u8 *eeprom = dev->mt76.eeprom.data; |
| 267 | u32 val; |
| 268 | s8 delta; |
| 269 | |
| 270 | if (band == NL80211_BAND_2GHZ) |
| 271 | val = eeprom[MT_EE_RATE_DELTA_2G_V2]; |
| 272 | else |
| 273 | val = eeprom[MT_EE_RATE_DELTA_5G_V2]; |
| 274 | |
| 275 | if (!(val & MT_EE_RATE_DELTA_EN)) |
| 276 | return 0; |
| 277 | |
| 278 | delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val); |
| 279 | |
| 280 | return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta; |
| 281 | } |
| 282 | |
developer | 7800b8d | 2022-06-23 22:15:56 +0800 | [diff] [blame] | 283 | const u8 besra_sku_group_len[] = { |
developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 284 | [SKU_CCK] = 4, |
| 285 | [SKU_OFDM] = 8, |
| 286 | [SKU_HT_BW20] = 8, |
| 287 | [SKU_HT_BW40] = 9, |
| 288 | [SKU_VHT_BW20] = 12, |
| 289 | [SKU_VHT_BW40] = 12, |
| 290 | [SKU_VHT_BW80] = 12, |
| 291 | [SKU_VHT_BW160] = 12, |
| 292 | [SKU_HE_RU26] = 12, |
| 293 | [SKU_HE_RU52] = 12, |
| 294 | [SKU_HE_RU106] = 12, |
| 295 | [SKU_HE_RU242] = 12, |
| 296 | [SKU_HE_RU484] = 12, |
| 297 | [SKU_HE_RU996] = 12, |
| 298 | [SKU_HE_RU2x996] = 12 |
| 299 | }; |