1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
4 #include <linux/firmware.h>
8 static int mt7915_eeprom_load_precal(struct mt7915_dev *dev)
10 struct mt76_dev *mdev = &dev->mt76;
11 u8 *eeprom = mdev->eeprom.data;
12 u32 val = eeprom[MT_EE_DO_PRE_CAL];
18 if (val != (MT_EE_WIFI_CAL_DPD | MT_EE_WIFI_CAL_GROUP))
21 val = MT_EE_CAL_GROUP_SIZE + MT_EE_CAL_DPD_SIZE;
22 dev->cal = devm_kzalloc(mdev->dev, val, GFP_KERNEL);
26 offs = is_mt7915(&dev->mt76) ? MT_EE_PRECAL : MT_EE_PRECAL_V2;
28 return mt76_get_of_eeprom(mdev, dev->cal, offs, val);
31 static int mt7915_check_eeprom(struct mt7915_dev *dev)
33 u8 *eeprom = dev->mt76.eeprom.data;
34 u16 val = get_unaligned_le16(eeprom);
46 static char *mt7915_eeprom_name(struct mt7915_dev *dev)
48 switch (mt76_chip(&dev->mt76)) {
50 return dev->dbdc_support ?
51 MT7915_EEPROM_DEFAULT_DBDC : MT7915_EEPROM_DEFAULT;
53 switch (mt7915_check_adie(dev, true)) {
54 case MT7976_ONE_ADIE_DBDC:
55 return MT7986_EEPROM_MT7976_DEFAULT_DBDC;
57 return MT7986_EEPROM_MT7975_DEFAULT;
59 return MT7986_EEPROM_MT7976_DEFAULT;
60 case MT7975_DUAL_ADIE:
61 return MT7986_EEPROM_MT7975_DUAL_DEFAULT;
62 case MT7976_DUAL_ADIE:
63 return MT7986_EEPROM_MT7976_DUAL_DEFAULT;
69 return MT7916_EEPROM_DEFAULT;
74 mt7915_eeprom_load_default(struct mt7915_dev *dev)
76 u8 *eeprom = dev->mt76.eeprom.data;
77 const struct firmware *fw = NULL;
80 ret = reject_firmware(&fw, mt7915_eeprom_name(dev), dev->mt76.dev);
84 if (!fw || !fw->data) {
85 dev_err(dev->mt76.dev, "Invalid default bin\n");
90 memcpy(eeprom, fw->data, mt7915_eeprom_size(dev));
91 dev->flash_mode = true;
99 static int mt7915_eeprom_load(struct mt7915_dev *dev)
102 u16 eeprom_size = mt7915_eeprom_size(dev);
104 ret = mt76_eeprom_init(&dev->mt76, eeprom_size);
109 dev->flash_mode = true;
114 mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
115 /* efuse info not enough */
116 if (free_block_num >= 29)
119 /* read eeprom data from efuse */
120 block_num = DIV_ROUND_UP(eeprom_size,
121 MT7915_EEPROM_BLOCK_SIZE);
122 for (i = 0; i < block_num; i++)
123 mt7915_mcu_get_eeprom(dev,
124 i * MT7915_EEPROM_BLOCK_SIZE);
127 return mt7915_check_eeprom(dev);
130 static void mt7915_eeprom_parse_band_config(struct mt7915_phy *phy)
132 struct mt7915_dev *dev = phy->dev;
133 u8 *eeprom = dev->mt76.eeprom.data;
136 val = eeprom[MT_EE_WIFI_CONF + phy->band_idx];
137 val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
139 if (!is_mt7915(&dev->mt76)) {
141 case MT_EE_V2_BAND_SEL_5GHZ:
142 phy->mt76->cap.has_5ghz = true;
144 case MT_EE_V2_BAND_SEL_6GHZ:
145 phy->mt76->cap.has_6ghz = true;
147 case MT_EE_V2_BAND_SEL_5GHZ_6GHZ:
148 phy->mt76->cap.has_5ghz = true;
149 phy->mt76->cap.has_6ghz = true;
152 phy->mt76->cap.has_2ghz = true;
155 } else if (val == MT_EE_BAND_SEL_DEFAULT && dev->dbdc_support) {
156 val = phy->band_idx ? MT_EE_BAND_SEL_5GHZ : MT_EE_BAND_SEL_2GHZ;
160 case MT_EE_BAND_SEL_5GHZ:
161 phy->mt76->cap.has_5ghz = true;
163 case MT_EE_BAND_SEL_2GHZ:
164 phy->mt76->cap.has_2ghz = true;
167 phy->mt76->cap.has_2ghz = true;
168 phy->mt76->cap.has_5ghz = true;
173 void mt7915_eeprom_parse_hw_cap(struct mt7915_dev *dev,
174 struct mt7915_phy *phy)
176 u8 nss, nss_band, nss_band_max, *eeprom = dev->mt76.eeprom.data;
177 struct mt76_phy *mphy = phy->mt76;
178 bool ext_phy = phy != &dev->phy;
180 mt7915_eeprom_parse_band_config(phy);
182 /* read tx/rx mask from eeprom */
183 if (is_mt7915(&dev->mt76)) {
184 nss = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
185 eeprom[MT_EE_WIFI_CONF]);
187 nss = FIELD_GET(MT_EE_WIFI_CONF0_TX_PATH,
188 eeprom[MT_EE_WIFI_CONF + phy->band_idx]);
194 /* read tx/rx stream */
197 if (dev->dbdc_support) {
198 if (is_mt7915(&dev->mt76)) {
199 nss_band = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B0,
200 eeprom[MT_EE_WIFI_CONF + 3]);
202 nss_band = FIELD_GET(MT_EE_WIFI_CONF3_TX_PATH_B1,
203 eeprom[MT_EE_WIFI_CONF + 3]);
205 nss_band = FIELD_GET(MT_EE_WIFI_CONF_STREAM_NUM,
206 eeprom[MT_EE_WIFI_CONF + 2 + phy->band_idx]);
209 nss_band_max = is_mt7986(&dev->mt76) ?
210 MT_EE_NSS_MAX_DBDC_MA7986 : MT_EE_NSS_MAX_DBDC_MA7915;
212 nss_band_max = is_mt7986(&dev->mt76) ?
213 MT_EE_NSS_MAX_MA7986 : MT_EE_NSS_MAX_MA7915;
216 if (!nss_band || nss_band > nss_band_max)
217 nss_band = nss_band_max;
219 if (nss_band > nss) {
220 dev_warn(dev->mt76.dev,
221 "nss mismatch, nss(%d) nss_band(%d) band(%d) ext_phy(%d)\n",
222 nss, nss_band, phy->band_idx, ext_phy);
226 mphy->chainmask = BIT(nss) - 1;
228 mphy->chainmask <<= dev->chainshift;
229 mphy->antenna_mask = BIT(nss_band) - 1;
230 dev->chainmask |= mphy->chainmask;
231 dev->chainshift = hweight8(dev->mphy.chainmask);
234 int mt7915_eeprom_init(struct mt7915_dev *dev)
238 ret = mt7915_eeprom_load(dev);
243 dev_warn(dev->mt76.dev, "eeprom load fail, use default bin\n");
244 ret = mt7915_eeprom_load_default(dev);
249 ret = mt7915_eeprom_load_precal(dev);
253 mt7915_eeprom_parse_hw_cap(dev, &dev->phy);
254 memcpy(dev->mphy.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
257 mt76_eeprom_override(&dev->mphy);
262 int mt7915_eeprom_get_target_power(struct mt7915_dev *dev,
263 struct ieee80211_channel *chan,
266 u8 *eeprom = dev->mt76.eeprom.data;
267 int index, target_power;
268 bool tssi_on, is_7976;
273 tssi_on = mt7915_tssi_enabled(dev, chan->band);
274 is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
276 if (chan->band == NL80211_BAND_2GHZ) {
278 index = MT_EE_TX0_POWER_2G_V2 + chain_idx;
279 target_power = eeprom[index];
281 index = MT_EE_TX0_POWER_2G + chain_idx * 3;
282 target_power = eeprom[index];
285 target_power += eeprom[index + 1];
287 } else if (chan->band == NL80211_BAND_5GHZ) {
288 int group = mt7915_get_channel_group_5g(chan->hw_value, is_7976);
291 index = MT_EE_TX0_POWER_5G_V2 + chain_idx * 5;
292 target_power = eeprom[index + group];
294 index = MT_EE_TX0_POWER_5G + chain_idx * 12;
295 target_power = eeprom[index + group];
298 target_power += eeprom[index + 8];
301 int group = mt7915_get_channel_group_6g(chan->hw_value);
303 index = MT_EE_TX0_POWER_6G_V2 + chain_idx * 8;
304 target_power = is_7976 ? eeprom[index + group] : 0;
310 s8 mt7915_eeprom_get_power_delta(struct mt7915_dev *dev, int band)
312 u8 *eeprom = dev->mt76.eeprom.data;
315 bool is_7976 = mt7915_check_adie(dev, false) || is_mt7916(&dev->mt76);
317 if (band == NL80211_BAND_2GHZ)
318 offs = is_7976 ? MT_EE_RATE_DELTA_2G_V2 : MT_EE_RATE_DELTA_2G;
319 else if (band == NL80211_BAND_5GHZ)
320 offs = is_7976 ? MT_EE_RATE_DELTA_5G_V2 : MT_EE_RATE_DELTA_5G;
322 offs = is_7976 ? MT_EE_RATE_DELTA_6G_V2 : 0;
326 if (!offs || !(val & MT_EE_RATE_DELTA_EN))
329 delta = FIELD_GET(MT_EE_RATE_DELTA_MASK, val);
331 return val & MT_EE_RATE_DELTA_SIGN ? delta : -delta;
334 const u8 mt7915_sku_group_len[] = {
342 [SKU_VHT_BW160] = 12,
349 [SKU_HE_RU2x996] = 12