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path: root/drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c
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Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c b/drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c
new file mode 100644
index 000000000000..9c9bf3e785ba
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_eeprom.c
@@ -0,0 +1,664 @@
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <asm/unaligned.h>
+#include "mt76x2.h"
+#include "mt76x2_eeprom.h"
+
+#define EE_FIELD(_name, _value) [MT_EE_##_name] = (_value) | 1
+
+static int
+mt76x2_eeprom_copy(struct mt76x2_dev *dev, enum mt76x2_eeprom_field field,
+ void *dest, int len)
+{
+ if (field + len > dev->mt76.eeprom.size)
+ return -1;
+
+ memcpy(dest, dev->mt76.eeprom.data + field, len);
+ return 0;
+}
+
+static int
+mt76x2_eeprom_get_macaddr(struct mt76x2_dev *dev)
+{
+ void *src = dev->mt76.eeprom.data + MT_EE_MAC_ADDR;
+
+ memcpy(dev->mt76.macaddr, src, ETH_ALEN);
+ return 0;
+}
+
+static void
+mt76x2_eeprom_parse_hw_cap(struct mt76x2_dev *dev)
+{
+ u16 val = mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_0);
+
+ switch (FIELD_GET(MT_EE_NIC_CONF_0_BOARD_TYPE, val)) {
+ case BOARD_TYPE_5GHZ:
+ dev->mt76.cap.has_5ghz = true;
+ break;
+ case BOARD_TYPE_2GHZ:
+ dev->mt76.cap.has_2ghz = true;
+ break;
+ default:
+ dev->mt76.cap.has_2ghz = true;
+ dev->mt76.cap.has_5ghz = true;
+ break;
+ }
+}
+
+static int
+mt76x2_efuse_read(struct mt76x2_dev *dev, u16 addr, u8 *data)
+{
+ u32 val;
+ int i;
+
+ val = mt76_rr(dev, MT_EFUSE_CTRL);
+ val &= ~(MT_EFUSE_CTRL_AIN |
+ MT_EFUSE_CTRL_MODE);
+ val |= FIELD_PREP(MT_EFUSE_CTRL_AIN, addr & ~0xf);
+ val |= MT_EFUSE_CTRL_KICK;
+ mt76_wr(dev, MT_EFUSE_CTRL, val);
+
+ if (!mt76_poll(dev, MT_EFUSE_CTRL, MT_EFUSE_CTRL_KICK, 0, 1000))
+ return -ETIMEDOUT;
+
+ udelay(2);
+
+ val = mt76_rr(dev, MT_EFUSE_CTRL);
+ if ((val & MT_EFUSE_CTRL_AOUT) == MT_EFUSE_CTRL_AOUT) {
+ memset(data, 0xff, 16);
+ return 0;
+ }
+
+ for (i = 0; i < 4; i++) {
+ val = mt76_rr(dev, MT_EFUSE_DATA(i));
+ put_unaligned_le32(val, data + 4 * i);
+ }
+
+ return 0;
+}
+
+static int
+mt76x2_get_efuse_data(struct mt76x2_dev *dev, void *buf, int len)
+{
+ int ret, i;
+
+ for (i = 0; i + 16 <= len; i += 16) {
+ ret = mt76x2_efuse_read(dev, i, buf + i);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static bool
+mt76x2_has_cal_free_data(struct mt76x2_dev *dev, u8 *efuse)
+{
+ u16 *efuse_w = (u16 *) efuse;
+
+ if (efuse_w[MT_EE_NIC_CONF_0] != 0)
+ return false;
+
+ if (efuse_w[MT_EE_XTAL_TRIM_1] == 0xffff)
+ return false;
+
+ if (efuse_w[MT_EE_TX_POWER_DELTA_BW40] != 0)
+ return false;
+
+ if (efuse_w[MT_EE_TX_POWER_0_START_2G] == 0xffff)
+ return false;
+
+ if (efuse_w[MT_EE_TX_POWER_0_GRP3_TX_POWER_DELTA] != 0)
+ return false;
+
+ if (efuse_w[MT_EE_TX_POWER_0_GRP4_TSSI_SLOPE] == 0xffff)
+ return false;
+
+ return true;
+}
+
+static void
+mt76x2_apply_cal_free_data(struct mt76x2_dev *dev, u8 *efuse)
+{
+#define GROUP_5G(_id) \
+ MT_EE_TX_POWER_0_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id), \
+ MT_EE_TX_POWER_0_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id) + 1, \
+ MT_EE_TX_POWER_1_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id), \
+ MT_EE_TX_POWER_1_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id) + 1
+
+ static const u8 cal_free_bytes[] = {
+ MT_EE_XTAL_TRIM_1,
+ MT_EE_TX_POWER_EXT_PA_5G + 1,
+ MT_EE_TX_POWER_0_START_2G,
+ MT_EE_TX_POWER_0_START_2G + 1,
+ MT_EE_TX_POWER_1_START_2G,
+ MT_EE_TX_POWER_1_START_2G + 1,
+ GROUP_5G(0),
+ GROUP_5G(1),
+ GROUP_5G(2),
+ GROUP_5G(3),
+ GROUP_5G(4),
+ GROUP_5G(5),
+ MT_EE_RF_2G_TSSI_OFF_TXPOWER,
+ MT_EE_RF_2G_RX_HIGH_GAIN + 1,
+ MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN,
+ MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN + 1,
+ MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN,
+ MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN + 1,
+ MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN,
+ MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN + 1,
+ };
+ u8 *eeprom = dev->mt76.eeprom.data;
+ u8 prev_grp0[4] = {
+ eeprom[MT_EE_TX_POWER_0_START_5G],
+ eeprom[MT_EE_TX_POWER_0_START_5G + 1],
+ eeprom[MT_EE_TX_POWER_1_START_5G],
+ eeprom[MT_EE_TX_POWER_1_START_5G + 1]
+ };
+ u16 val;
+ int i;
+
+ if (!mt76x2_has_cal_free_data(dev, efuse))
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(cal_free_bytes); i++) {
+ int offset = cal_free_bytes[i];
+
+ eeprom[offset] = efuse[offset];
+ }
+
+ if (!(efuse[MT_EE_TX_POWER_0_START_5G] |
+ efuse[MT_EE_TX_POWER_0_START_5G + 1]))
+ memcpy(eeprom + MT_EE_TX_POWER_0_START_5G, prev_grp0, 2);
+ if (!(efuse[MT_EE_TX_POWER_1_START_5G] |
+ efuse[MT_EE_TX_POWER_1_START_5G + 1]))
+ memcpy(eeprom + MT_EE_TX_POWER_1_START_5G, prev_grp0 + 2, 2);
+
+ val = get_unaligned_le16(efuse + MT_EE_BT_RCAL_RESULT);
+ if (val != 0xffff)
+ eeprom[MT_EE_BT_RCAL_RESULT] = val & 0xff;
+
+ val = get_unaligned_le16(efuse + MT_EE_BT_VCDL_CALIBRATION);
+ if (val != 0xffff)
+ eeprom[MT_EE_BT_VCDL_CALIBRATION + 1] = val >> 8;
+
+ val = get_unaligned_le16(efuse + MT_EE_BT_PMUCFG);
+ if (val != 0xffff)
+ eeprom[MT_EE_BT_PMUCFG] = val & 0xff;
+}
+
+static int mt76x2_check_eeprom(struct mt76x2_dev *dev)
+{
+ u16 val = get_unaligned_le16(dev->mt76.eeprom.data);
+
+ if (!val)
+ val = get_unaligned_le16(dev->mt76.eeprom.data + MT_EE_PCI_ID);
+
+ switch (val) {
+ case 0x7662:
+ case 0x7612:
+ return 0;
+ default:
+ dev_err(dev->mt76.dev, "EEPROM data check failed: %04x\n", val);
+ return -EINVAL;
+ }
+}
+
+static int
+mt76x2_eeprom_load(struct mt76x2_dev *dev)
+{
+ void *efuse;
+ int len = MT7662_EEPROM_SIZE;
+ bool found;
+ int ret;
+
+ ret = mt76_eeprom_init(&dev->mt76, len);
+ if (ret < 0)
+ return ret;
+
+ found = ret;
+ if (found)
+ found = !mt76x2_check_eeprom(dev);
+
+ dev->mt76.otp.data = devm_kzalloc(dev->mt76.dev, len, GFP_KERNEL);
+ dev->mt76.otp.size = len;
+ if (!dev->mt76.otp.data)
+ return -ENOMEM;
+
+ efuse = dev->mt76.otp.data;
+
+ if (mt76x2_get_efuse_data(dev, efuse, len))
+ goto out;
+
+ if (found) {
+ mt76x2_apply_cal_free_data(dev, efuse);
+ } else {
+ /* FIXME: check if efuse data is complete */
+ found = true;
+ memcpy(dev->mt76.eeprom.data, efuse, len);
+ }
+
+out:
+ if (!found)
+ return -ENOENT;
+
+ return 0;
+}
+
+static inline int
+mt76x2_sign_extend(u32 val, unsigned int size)
+{
+ bool sign = val & BIT(size - 1);
+
+ val &= BIT(size - 1) - 1;
+
+ return sign ? val : -val;
+}
+
+static inline int
+mt76x2_sign_extend_optional(u32 val, unsigned int size)
+{
+ bool enable = val & BIT(size);
+
+ return enable ? mt76x2_sign_extend(val, size) : 0;
+}
+
+static bool
+field_valid(u8 val)
+{
+ return val != 0 && val != 0xff;
+}
+
+static void
+mt76x2_set_rx_gain_group(struct mt76x2_dev *dev, u8 val)
+{
+ s8 *dest = dev->cal.rx.high_gain;
+
+ if (!field_valid(val)) {
+ dest[0] = 0;
+ dest[1] = 0;
+ return;
+ }
+
+ dest[0] = mt76x2_sign_extend(val, 4);
+ dest[1] = mt76x2_sign_extend(val >> 4, 4);
+}
+
+static void
+mt76x2_set_rssi_offset(struct mt76x2_dev *dev, int chain, u8 val)
+{
+ s8 *dest = dev->cal.rx.rssi_offset;
+
+ if (!field_valid(val)) {
+ dest[chain] = 0;
+ return;
+ }
+
+ dest[chain] = mt76x2_sign_extend_optional(val, 7);
+}
+
+static enum mt76x2_cal_channel_group
+mt76x2_get_cal_channel_group(int channel)
+{
+ if (channel >= 184 && channel <= 196)
+ return MT_CH_5G_JAPAN;
+ if (channel <= 48)
+ return MT_CH_5G_UNII_1;
+ if (channel <= 64)
+ return MT_CH_5G_UNII_2;
+ if (channel <= 114)
+ return MT_CH_5G_UNII_2E_1;
+ if (channel <= 144)
+ return MT_CH_5G_UNII_2E_2;
+ return MT_CH_5G_UNII_3;
+}
+
+static u8
+mt76x2_get_5g_rx_gain(struct mt76x2_dev *dev, u8 channel)
+{
+ enum mt76x2_cal_channel_group group;
+
+ group = mt76x2_get_cal_channel_group(channel);
+ switch (group) {
+ case MT_CH_5G_JAPAN:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN);
+ case MT_CH_5G_UNII_1:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN) >> 8;
+ case MT_CH_5G_UNII_2:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN);
+ case MT_CH_5G_UNII_2E_1:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN) >> 8;
+ case MT_CH_5G_UNII_2E_2:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN);
+ default:
+ return mt76x2_eeprom_get(dev, MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN) >> 8;
+ }
+}
+
+void mt76x2_read_rx_gain(struct mt76x2_dev *dev)
+{
+ struct ieee80211_channel *chan = dev->mt76.chandef.chan;
+ int channel = chan->hw_value;
+ s8 lna_5g[3], lna_2g;
+ u8 lna;
+ u16 val;
+
+ if (chan->band == NL80211_BAND_2GHZ)
+ val = mt76x2_eeprom_get(dev, MT_EE_RF_2G_RX_HIGH_GAIN) >> 8;
+ else
+ val = mt76x2_get_5g_rx_gain(dev, channel);
+
+ mt76x2_set_rx_gain_group(dev, val);
+
+ if (chan->band == NL80211_BAND_2GHZ) {
+ val = mt76x2_eeprom_get(dev, MT_EE_RSSI_OFFSET_2G_0);
+ mt76x2_set_rssi_offset(dev, 0, val);
+ mt76x2_set_rssi_offset(dev, 1, val >> 8);
+ } else {
+ val = mt76x2_eeprom_get(dev, MT_EE_RSSI_OFFSET_5G_0);
+ mt76x2_set_rssi_offset(dev, 0, val);
+ mt76x2_set_rssi_offset(dev, 1, val >> 8);
+ }
+
+ val = mt76x2_eeprom_get(dev, MT_EE_LNA_GAIN);
+ lna_2g = val & 0xff;
+ lna_5g[0] = val >> 8;
+
+ val = mt76x2_eeprom_get(dev, MT_EE_RSSI_OFFSET_2G_1);
+ lna_5g[1] = val >> 8;
+
+ val = mt76x2_eeprom_get(dev, MT_EE_RSSI_OFFSET_5G_1);
+ lna_5g[2] = val >> 8;
+
+ if (!field_valid(lna_5g[1]))
+ lna_5g[1] = lna_5g[0];
+
+ if (!field_valid(lna_5g[2]))
+ lna_5g[2] = lna_5g[0];
+
+ dev->cal.rx.mcu_gain = (lna_2g & 0xff);
+ dev->cal.rx.mcu_gain |= (lna_5g[0] & 0xff) << 8;
+ dev->cal.rx.mcu_gain |= (lna_5g[1] & 0xff) << 16;
+ dev->cal.rx.mcu_gain |= (lna_5g[2] & 0xff) << 24;
+
+ val = mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_1);
+ if (val & MT_EE_NIC_CONF_1_LNA_EXT_2G)
+ lna_2g = 0;
+ if (val & MT_EE_NIC_CONF_1_LNA_EXT_5G)
+ memset(lna_5g, 0, sizeof(lna_5g));
+
+ if (chan->band == NL80211_BAND_2GHZ)
+ lna = lna_2g;
+ else if (channel <= 64)
+ lna = lna_5g[0];
+ else if (channel <= 128)
+ lna = lna_5g[1];
+ else
+ lna = lna_5g[2];
+
+ if (lna == 0xff)
+ lna = 0;
+
+ dev->cal.rx.lna_gain = mt76x2_sign_extend(lna, 8);
+}
+
+static s8
+mt76x2_rate_power_val(u8 val)
+{
+ if (!field_valid(val))
+ return 0;
+
+ return mt76x2_sign_extend_optional(val, 7);
+}
+
+void mt76x2_get_rate_power(struct mt76x2_dev *dev, struct mt76_rate_power *t,
+ struct ieee80211_channel *chan)
+{
+ bool is_5ghz;
+ u16 val;
+
+ is_5ghz = chan->band == NL80211_BAND_5GHZ;
+
+ memset(t, 0, sizeof(*t));
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_CCK);
+ t->cck[0] = t->cck[1] = mt76x2_rate_power_val(val);
+ t->cck[2] = t->cck[3] = mt76x2_rate_power_val(val >> 8);
+
+ if (is_5ghz)
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_OFDM_5G_6M);
+ else
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_OFDM_2G_6M);
+ t->ofdm[0] = t->ofdm[1] = mt76x2_rate_power_val(val);
+ t->ofdm[2] = t->ofdm[3] = mt76x2_rate_power_val(val >> 8);
+
+ if (is_5ghz)
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_OFDM_5G_24M);
+ else
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_OFDM_2G_24M);
+ t->ofdm[4] = t->ofdm[5] = mt76x2_rate_power_val(val);
+ t->ofdm[6] = t->ofdm[7] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS0);
+ t->ht[0] = t->ht[1] = mt76x2_rate_power_val(val);
+ t->ht[2] = t->ht[3] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS4);
+ t->ht[4] = t->ht[5] = mt76x2_rate_power_val(val);
+ t->ht[6] = t->ht[7] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS8);
+ t->ht[8] = t->ht[9] = mt76x2_rate_power_val(val);
+ t->ht[10] = t->ht[11] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS12);
+ t->ht[12] = t->ht[13] = mt76x2_rate_power_val(val);
+ t->ht[14] = t->ht[15] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_VHT_MCS0);
+ t->vht[0] = t->vht[1] = mt76x2_rate_power_val(val);
+ t->vht[2] = t->vht[3] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_VHT_MCS4);
+ t->vht[4] = t->vht[5] = mt76x2_rate_power_val(val);
+ t->vht[6] = t->vht[7] = mt76x2_rate_power_val(val >> 8);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_VHT_MCS8);
+ if (!is_5ghz)
+ val >>= 8;
+ t->vht[8] = t->vht[9] = mt76x2_rate_power_val(val >> 8);
+}
+
+int mt76x2_get_max_rate_power(struct mt76_rate_power *r)
+{
+ int i;
+ s8 ret = 0;
+
+ for (i = 0; i < sizeof(r->all); i++)
+ ret = max(ret, r->all[i]);
+
+ return ret;
+}
+
+static void
+mt76x2_get_power_info_2g(struct mt76x2_dev *dev, struct mt76x2_tx_power_info *t,
+ struct ieee80211_channel *chan, int chain, int offset)
+{
+ int channel = chan->hw_value;
+ int delta_idx;
+ u8 data[6];
+ u16 val;
+
+ if (channel < 6)
+ delta_idx = 3;
+ else if (channel < 11)
+ delta_idx = 4;
+ else
+ delta_idx = 5;
+
+ mt76x2_eeprom_copy(dev, offset, data, sizeof(data));
+
+ t->chain[chain].tssi_slope = data[0];
+ t->chain[chain].tssi_offset = data[1];
+ t->chain[chain].target_power = data[2];
+ t->chain[chain].delta = mt76x2_sign_extend_optional(data[delta_idx], 7);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_RF_2G_TSSI_OFF_TXPOWER);
+ t->target_power = val >> 8;
+}
+
+static void
+mt76x2_get_power_info_5g(struct mt76x2_dev *dev, struct mt76x2_tx_power_info *t,
+ struct ieee80211_channel *chan, int chain, int offset)
+{
+ int channel = chan->hw_value;
+ enum mt76x2_cal_channel_group group;
+ int delta_idx;
+ u16 val;
+ u8 data[5];
+
+ group = mt76x2_get_cal_channel_group(channel);
+ offset += group * MT_TX_POWER_GROUP_SIZE_5G;
+
+ if (channel >= 192)
+ delta_idx = 4;
+ else if (channel >= 184)
+ delta_idx = 3;
+ else if (channel < 44)
+ delta_idx = 3;
+ else if (channel < 52)
+ delta_idx = 4;
+ else if (channel < 58)
+ delta_idx = 3;
+ else if (channel < 98)
+ delta_idx = 4;
+ else if (channel < 106)
+ delta_idx = 3;
+ else if (channel < 116)
+ delta_idx = 4;
+ else if (channel < 130)
+ delta_idx = 3;
+ else if (channel < 149)
+ delta_idx = 4;
+ else if (channel < 157)
+ delta_idx = 3;
+ else
+ delta_idx = 4;
+
+ mt76x2_eeprom_copy(dev, offset, data, sizeof(data));
+
+ t->chain[chain].tssi_slope = data[0];
+ t->chain[chain].tssi_offset = data[1];
+ t->chain[chain].target_power = data[2];
+ t->chain[chain].delta = mt76x2_sign_extend_optional(data[delta_idx], 7);
+
+ val = mt76x2_eeprom_get(dev, MT_EE_RF_2G_RX_HIGH_GAIN);
+ t->target_power = val & 0xff;
+}
+
+void mt76x2_get_power_info(struct mt76x2_dev *dev,
+ struct mt76x2_tx_power_info *t,
+ struct ieee80211_channel *chan)
+{
+ u16 bw40, bw80;
+
+ memset(t, 0, sizeof(*t));
+
+ bw40 = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_DELTA_BW40);
+ bw80 = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_DELTA_BW80);
+
+ if (chan->band == NL80211_BAND_5GHZ) {
+ bw40 >>= 8;
+ mt76x2_get_power_info_5g(dev, t, chan, 0,
+ MT_EE_TX_POWER_0_START_5G);
+ mt76x2_get_power_info_5g(dev, t, chan, 1,
+ MT_EE_TX_POWER_1_START_5G);
+ } else {
+ mt76x2_get_power_info_2g(dev, t, chan, 0,
+ MT_EE_TX_POWER_0_START_2G);
+ mt76x2_get_power_info_2g(dev, t, chan, 1,
+ MT_EE_TX_POWER_1_START_2G);
+ }
+
+ if (mt76x2_tssi_enabled(dev) || !field_valid(t->target_power))
+ t->target_power = t->chain[0].target_power;
+
+ t->delta_bw40 = mt76x2_rate_power_val(bw40);
+ t->delta_bw80 = mt76x2_rate_power_val(bw80);
+}
+
+int mt76x2_get_temp_comp(struct mt76x2_dev *dev, struct mt76x2_temp_comp *t)
+{
+ enum nl80211_band band = dev->mt76.chandef.chan->band;
+ u16 val, slope;
+ u8 bounds;
+
+ memset(t, 0, sizeof(*t));
+
+ val = mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_1);
+ if (!(val & MT_EE_NIC_CONF_1_TEMP_TX_ALC))
+ return -EINVAL;
+
+ if (!mt76x2_ext_pa_enabled(dev, band))
+ return -EINVAL;
+
+ val = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_EXT_PA_5G) >> 8;
+ if (!(val & BIT(7)))
+ return -EINVAL;
+
+ t->temp_25_ref = val & 0x7f;
+ if (band == NL80211_BAND_5GHZ) {
+ slope = mt76x2_eeprom_get(dev, MT_EE_RF_TEMP_COMP_SLOPE_5G);
+ bounds = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_EXT_PA_5G);
+ } else {
+ slope = mt76x2_eeprom_get(dev, MT_EE_RF_TEMP_COMP_SLOPE_2G);
+ bounds = mt76x2_eeprom_get(dev, MT_EE_TX_POWER_DELTA_BW80) >> 8;
+ }
+
+ t->high_slope = slope & 0xff;
+ t->low_slope = slope >> 8;
+ t->lower_bound = 0 - (bounds & 0xf);
+ t->upper_bound = (bounds >> 4) & 0xf;
+
+ return 0;
+}
+
+bool mt76x2_ext_pa_enabled(struct mt76x2_dev *dev, enum nl80211_band band)
+{
+ u16 conf0 = mt76x2_eeprom_get(dev, MT_EE_NIC_CONF_0);
+
+ if (band == NL80211_BAND_5GHZ)
+ return !(conf0 & MT_EE_NIC_CONF_0_PA_INT_5G);
+ else
+ return !(conf0 & MT_EE_NIC_CONF_0_PA_INT_2G);
+}
+
+int mt76x2_eeprom_init(struct mt76x2_dev *dev)
+{
+ int ret;
+
+ ret = mt76x2_eeprom_load(dev);
+ if (ret)
+ return ret;
+
+ mt76x2_eeprom_parse_hw_cap(dev);
+ mt76x2_eeprom_get_macaddr(dev);
+ mt76_eeprom_override(&dev->mt76);
+ dev->mt76.macaddr[0] &= ~BIT(1);
+
+ return 0;
+}