| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * (c) Copyright 2002-2010, Ralink Technology, Inc. |
| * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org> |
| * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl> |
| */ |
| |
| #include "mt7601u.h" |
| #include "mcu.h" |
| #include "eeprom.h" |
| #include "trace.h" |
| #include "initvals_phy.h" |
| |
| #include <linux/etherdevice.h> |
| |
| static void mt7601u_agc_reset(struct mt7601u_dev *dev); |
| |
| static int |
| mt7601u_rf_wr(struct mt7601u_dev *dev, u8 bank, u8 offset, u8 value) |
| { |
| int ret = 0; |
| |
| if (WARN_ON(!test_bit(MT7601U_STATE_WLAN_RUNNING, &dev->state)) || |
| WARN_ON(offset > 63)) |
| return -EINVAL; |
| if (test_bit(MT7601U_STATE_REMOVED, &dev->state)) |
| return 0; |
| |
| mutex_lock(&dev->reg_atomic_mutex); |
| |
| if (!mt76_poll(dev, MT_RF_CSR_CFG, MT_RF_CSR_CFG_KICK, 0, 100)) { |
| ret = -ETIMEDOUT; |
| goto out; |
| } |
| |
| mt7601u_wr(dev, MT_RF_CSR_CFG, |
| FIELD_PREP(MT_RF_CSR_CFG_DATA, value) | |
| FIELD_PREP(MT_RF_CSR_CFG_REG_BANK, bank) | |
| FIELD_PREP(MT_RF_CSR_CFG_REG_ID, offset) | |
| MT_RF_CSR_CFG_WR | |
| MT_RF_CSR_CFG_KICK); |
| trace_rf_write(dev, bank, offset, value); |
| out: |
| mutex_unlock(&dev->reg_atomic_mutex); |
| |
| if (ret < 0) |
| dev_err(dev->dev, "Error: RF write %02hhx:%02hhx failed:%d!!\n", |
| bank, offset, ret); |
| |
| return ret; |
| } |
| |
| static int |
| mt7601u_rf_rr(struct mt7601u_dev *dev, u8 bank, u8 offset) |
| { |
| int ret = -ETIMEDOUT; |
| u32 val; |
| |
| if (WARN_ON(!test_bit(MT7601U_STATE_WLAN_RUNNING, &dev->state)) || |
| WARN_ON(offset > 63)) |
| return -EINVAL; |
| if (test_bit(MT7601U_STATE_REMOVED, &dev->state)) |
| return 0xff; |
| |
| mutex_lock(&dev->reg_atomic_mutex); |
| |
| if (!mt76_poll(dev, MT_RF_CSR_CFG, MT_RF_CSR_CFG_KICK, 0, 100)) |
| goto out; |
| |
| mt7601u_wr(dev, MT_RF_CSR_CFG, |
| FIELD_PREP(MT_RF_CSR_CFG_REG_BANK, bank) | |
| FIELD_PREP(MT_RF_CSR_CFG_REG_ID, offset) | |
| MT_RF_CSR_CFG_KICK); |
| |
| if (!mt76_poll(dev, MT_RF_CSR_CFG, MT_RF_CSR_CFG_KICK, 0, 100)) |
| goto out; |
| |
| val = mt7601u_rr(dev, MT_RF_CSR_CFG); |
| if (FIELD_GET(MT_RF_CSR_CFG_REG_ID, val) == offset && |
| FIELD_GET(MT_RF_CSR_CFG_REG_BANK, val) == bank) { |
| ret = FIELD_GET(MT_RF_CSR_CFG_DATA, val); |
| trace_rf_read(dev, bank, offset, ret); |
| } |
| out: |
| mutex_unlock(&dev->reg_atomic_mutex); |
| |
| if (ret < 0) |
| dev_err(dev->dev, "Error: RF read %02hhx:%02hhx failed:%d!!\n", |
| bank, offset, ret); |
| |
| return ret; |
| } |
| |
| static int |
| mt7601u_rf_rmw(struct mt7601u_dev *dev, u8 bank, u8 offset, u8 mask, u8 val) |
| { |
| int ret; |
| |
| ret = mt7601u_rf_rr(dev, bank, offset); |
| if (ret < 0) |
| return ret; |
| val |= ret & ~mask; |
| ret = mt7601u_rf_wr(dev, bank, offset, val); |
| if (ret) |
| return ret; |
| |
| return val; |
| } |
| |
| static int |
| mt7601u_rf_set(struct mt7601u_dev *dev, u8 bank, u8 offset, u8 val) |
| { |
| return mt7601u_rf_rmw(dev, bank, offset, 0, val); |
| } |
| |
| static int |
| mt7601u_rf_clear(struct mt7601u_dev *dev, u8 bank, u8 offset, u8 mask) |
| { |
| return mt7601u_rf_rmw(dev, bank, offset, mask, 0); |
| } |
| |
| static void mt7601u_bbp_wr(struct mt7601u_dev *dev, u8 offset, u8 val) |
| { |
| if (WARN_ON(!test_bit(MT7601U_STATE_WLAN_RUNNING, &dev->state)) || |
| test_bit(MT7601U_STATE_REMOVED, &dev->state)) |
| return; |
| |
| mutex_lock(&dev->reg_atomic_mutex); |
| |
| if (!mt76_poll(dev, MT_BBP_CSR_CFG, MT_BBP_CSR_CFG_BUSY, 0, 1000)) { |
| dev_err(dev->dev, "Error: BBP write %02hhx failed!!\n", offset); |
| goto out; |
| } |
| |
| mt7601u_wr(dev, MT_BBP_CSR_CFG, |
| FIELD_PREP(MT_BBP_CSR_CFG_VAL, val) | |
| FIELD_PREP(MT_BBP_CSR_CFG_REG_NUM, offset) | |
| MT_BBP_CSR_CFG_RW_MODE | MT_BBP_CSR_CFG_BUSY); |
| trace_bbp_write(dev, offset, val); |
| out: |
| mutex_unlock(&dev->reg_atomic_mutex); |
| } |
| |
| static int mt7601u_bbp_rr(struct mt7601u_dev *dev, u8 offset) |
| { |
| u32 val; |
| int ret = -ETIMEDOUT; |
| |
| if (WARN_ON(!test_bit(MT7601U_STATE_WLAN_RUNNING, &dev->state))) |
| return -EINVAL; |
| if (test_bit(MT7601U_STATE_REMOVED, &dev->state)) |
| return 0xff; |
| |
| mutex_lock(&dev->reg_atomic_mutex); |
| |
| if (!mt76_poll(dev, MT_BBP_CSR_CFG, MT_BBP_CSR_CFG_BUSY, 0, 1000)) |
| goto out; |
| |
| mt7601u_wr(dev, MT_BBP_CSR_CFG, |
| FIELD_PREP(MT_BBP_CSR_CFG_REG_NUM, offset) | |
| MT_BBP_CSR_CFG_RW_MODE | MT_BBP_CSR_CFG_BUSY | |
| MT_BBP_CSR_CFG_READ); |
| |
| if (!mt76_poll(dev, MT_BBP_CSR_CFG, MT_BBP_CSR_CFG_BUSY, 0, 1000)) |
| goto out; |
| |
| val = mt7601u_rr(dev, MT_BBP_CSR_CFG); |
| if (FIELD_GET(MT_BBP_CSR_CFG_REG_NUM, val) == offset) { |
| ret = FIELD_GET(MT_BBP_CSR_CFG_VAL, val); |
| trace_bbp_read(dev, offset, ret); |
| } |
| out: |
| mutex_unlock(&dev->reg_atomic_mutex); |
| |
| if (ret < 0) |
| dev_err(dev->dev, "Error: BBP read %02hhx failed:%d!!\n", |
| offset, ret); |
| |
| return ret; |
| } |
| |
| static int mt7601u_bbp_rmw(struct mt7601u_dev *dev, u8 offset, u8 mask, u8 val) |
| { |
| int ret; |
| |
| ret = mt7601u_bbp_rr(dev, offset); |
| if (ret < 0) |
| return ret; |
| val |= ret & ~mask; |
| mt7601u_bbp_wr(dev, offset, val); |
| |
| return val; |
| } |
| |
| static u8 mt7601u_bbp_rmc(struct mt7601u_dev *dev, u8 offset, u8 mask, u8 val) |
| { |
| int ret; |
| |
| ret = mt7601u_bbp_rr(dev, offset); |
| if (ret < 0) |
| return ret; |
| val |= ret & ~mask; |
| if (ret != val) |
| mt7601u_bbp_wr(dev, offset, val); |
| |
| return val; |
| } |
| |
| int mt7601u_wait_bbp_ready(struct mt7601u_dev *dev) |
| { |
| int i = 20; |
| u8 val; |
| |
| do { |
| val = mt7601u_bbp_rr(dev, MT_BBP_REG_VERSION); |
| if (val && val != 0xff) |
| break; |
| } while (--i); |
| |
| if (!i) { |
| dev_err(dev->dev, "Error: BBP is not ready\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| u32 mt7601u_bbp_set_ctrlch(struct mt7601u_dev *dev, bool below) |
| { |
| return mt7601u_bbp_rmc(dev, 3, 0x20, below ? 0x20 : 0); |
| } |
| |
| int mt7601u_phy_get_rssi(struct mt7601u_dev *dev, |
| struct mt7601u_rxwi *rxwi, u16 rate) |
| { |
| static const s8 lna[2][2][3] = { |
| /* main LNA */ { |
| /* bw20 */ { -2, 15, 33 }, |
| /* bw40 */ { 0, 16, 34 } |
| }, |
| /* aux LNA */ { |
| /* bw20 */ { -2, 15, 33 }, |
| /* bw40 */ { -2, 16, 34 } |
| } |
| }; |
| int bw = FIELD_GET(MT_RXWI_RATE_BW, rate); |
| int aux_lna = FIELD_GET(MT_RXWI_ANT_AUX_LNA, rxwi->ant); |
| int lna_id = FIELD_GET(MT_RXWI_GAIN_RSSI_LNA_ID, rxwi->gain); |
| int val; |
| |
| if (lna_id) /* LNA id can be 0, 2, 3. */ |
| lna_id--; |
| |
| val = 8; |
| val -= lna[aux_lna][bw][lna_id]; |
| val -= FIELD_GET(MT_RXWI_GAIN_RSSI_VAL, rxwi->gain); |
| val -= dev->ee->lna_gain; |
| val -= dev->ee->rssi_offset[0]; |
| |
| return val; |
| } |
| |
| static void mt7601u_vco_cal(struct mt7601u_dev *dev) |
| { |
| mt7601u_rf_wr(dev, 0, 4, 0x0a); |
| mt7601u_rf_wr(dev, 0, 5, 0x20); |
| mt7601u_rf_set(dev, 0, 4, BIT(7)); |
| msleep(2); |
| } |
| |
| static int mt7601u_set_bw_filter(struct mt7601u_dev *dev, bool cal) |
| { |
| u32 filter = 0; |
| int ret; |
| |
| if (!cal) |
| filter |= 0x10000; |
| if (dev->bw != MT_BW_20) |
| filter |= 0x00100; |
| |
| /* TX */ |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_BW, filter | 1); |
| if (ret) |
| return ret; |
| /* RX */ |
| return mt7601u_mcu_calibrate(dev, MCU_CAL_BW, filter); |
| } |
| |
| static int mt7601u_load_bbp_temp_table_bw(struct mt7601u_dev *dev) |
| { |
| const struct reg_table *t; |
| |
| if (WARN_ON(dev->temp_mode > MT_TEMP_MODE_LOW)) |
| return -EINVAL; |
| |
| t = &bbp_mode_table[dev->temp_mode][dev->bw]; |
| |
| return mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, t->regs, t->n); |
| } |
| |
| static int mt7601u_bbp_temp(struct mt7601u_dev *dev, int mode, const char *name) |
| { |
| const struct reg_table *t; |
| int ret; |
| |
| if (dev->temp_mode == mode) |
| return 0; |
| |
| dev->temp_mode = mode; |
| trace_temp_mode(dev, mode); |
| |
| t = bbp_mode_table[dev->temp_mode]; |
| ret = mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, |
| t[2].regs, t[2].n); |
| if (ret) |
| return ret; |
| |
| return mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, |
| t[dev->bw].regs, t[dev->bw].n); |
| } |
| |
| static void mt7601u_apply_ch14_fixup(struct mt7601u_dev *dev, int hw_chan) |
| { |
| struct mt7601u_rate_power *t = &dev->ee->power_rate_table; |
| |
| if (hw_chan != 14 || dev->bw != MT_BW_20) { |
| mt7601u_bbp_rmw(dev, 4, 0x20, 0); |
| mt7601u_bbp_wr(dev, 178, 0xff); |
| |
| t->cck[0].bw20 = dev->ee->real_cck_bw20[0]; |
| t->cck[1].bw20 = dev->ee->real_cck_bw20[1]; |
| } else { /* Apply CH14 OBW fixup */ |
| mt7601u_bbp_wr(dev, 4, 0x60); |
| mt7601u_bbp_wr(dev, 178, 0); |
| |
| /* Note: vendor code is buggy here for negative values */ |
| t->cck[0].bw20 = dev->ee->real_cck_bw20[0] - 2; |
| t->cck[1].bw20 = dev->ee->real_cck_bw20[1] - 2; |
| } |
| } |
| |
| static int __mt7601u_phy_set_channel(struct mt7601u_dev *dev, |
| struct cfg80211_chan_def *chandef) |
| { |
| #define FREQ_PLAN_REGS 4 |
| static const u8 freq_plan[14][FREQ_PLAN_REGS] = { |
| { 0x99, 0x99, 0x09, 0x50 }, |
| { 0x46, 0x44, 0x0a, 0x50 }, |
| { 0xec, 0xee, 0x0a, 0x50 }, |
| { 0x99, 0x99, 0x0b, 0x50 }, |
| { 0x46, 0x44, 0x08, 0x51 }, |
| { 0xec, 0xee, 0x08, 0x51 }, |
| { 0x99, 0x99, 0x09, 0x51 }, |
| { 0x46, 0x44, 0x0a, 0x51 }, |
| { 0xec, 0xee, 0x0a, 0x51 }, |
| { 0x99, 0x99, 0x0b, 0x51 }, |
| { 0x46, 0x44, 0x08, 0x52 }, |
| { 0xec, 0xee, 0x08, 0x52 }, |
| { 0x99, 0x99, 0x09, 0x52 }, |
| { 0x33, 0x33, 0x0b, 0x52 }, |
| }; |
| struct mt76_reg_pair channel_freq_plan[FREQ_PLAN_REGS] = { |
| { 17, 0 }, { 18, 0 }, { 19, 0 }, { 20, 0 }, |
| }; |
| struct mt76_reg_pair bbp_settings[3] = { |
| { 62, 0x37 - dev->ee->lna_gain }, |
| { 63, 0x37 - dev->ee->lna_gain }, |
| { 64, 0x37 - dev->ee->lna_gain }, |
| }; |
| |
| struct ieee80211_channel *chan = chandef->chan; |
| enum nl80211_channel_type chan_type = |
| cfg80211_get_chandef_type(chandef); |
| struct mt7601u_rate_power *t = &dev->ee->power_rate_table; |
| int chan_idx; |
| bool chan_ext_below; |
| u8 bw; |
| int i, ret; |
| |
| bw = MT_BW_20; |
| chan_ext_below = (chan_type == NL80211_CHAN_HT40MINUS); |
| chan_idx = chan->hw_value - 1; |
| |
| if (chandef->width == NL80211_CHAN_WIDTH_40) { |
| bw = MT_BW_40; |
| |
| if (chan_idx > 1 && chan_type == NL80211_CHAN_HT40MINUS) |
| chan_idx -= 2; |
| else if (chan_idx < 12 && chan_type == NL80211_CHAN_HT40PLUS) |
| chan_idx += 2; |
| else |
| dev_err(dev->dev, "Error: invalid 40MHz channel!!\n"); |
| } |
| |
| if (bw != dev->bw || chan_ext_below != dev->chan_ext_below) { |
| dev_dbg(dev->dev, "Info: switching HT mode bw:%d below:%d\n", |
| bw, chan_ext_below); |
| |
| mt7601u_bbp_set_bw(dev, bw); |
| |
| mt7601u_bbp_set_ctrlch(dev, chan_ext_below); |
| mt7601u_mac_set_ctrlch(dev, chan_ext_below); |
| dev->chan_ext_below = chan_ext_below; |
| } |
| |
| for (i = 0; i < FREQ_PLAN_REGS; i++) |
| channel_freq_plan[i].value = freq_plan[chan_idx][i]; |
| |
| ret = mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_RF, |
| channel_freq_plan, FREQ_PLAN_REGS); |
| if (ret) |
| return ret; |
| |
| mt7601u_rmw(dev, MT_TX_ALC_CFG_0, 0x3f3f, |
| dev->ee->chan_pwr[chan_idx] & 0x3f); |
| |
| ret = mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, |
| bbp_settings, ARRAY_SIZE(bbp_settings)); |
| if (ret) |
| return ret; |
| |
| mt7601u_vco_cal(dev); |
| mt7601u_bbp_set_bw(dev, bw); |
| ret = mt7601u_set_bw_filter(dev, false); |
| if (ret) |
| return ret; |
| |
| mt7601u_apply_ch14_fixup(dev, chan->hw_value); |
| mt7601u_wr(dev, MT_TX_PWR_CFG_0, int_to_s6(t->ofdm[1].bw20) << 24 | |
| int_to_s6(t->ofdm[0].bw20) << 16 | |
| int_to_s6(t->cck[1].bw20) << 8 | |
| int_to_s6(t->cck[0].bw20)); |
| |
| if (test_bit(MT7601U_STATE_SCANNING, &dev->state)) |
| mt7601u_agc_reset(dev); |
| |
| dev->chandef = *chandef; |
| |
| return 0; |
| } |
| |
| int mt7601u_phy_set_channel(struct mt7601u_dev *dev, |
| struct cfg80211_chan_def *chandef) |
| { |
| int ret; |
| |
| cancel_delayed_work_sync(&dev->cal_work); |
| cancel_delayed_work_sync(&dev->freq_cal.work); |
| |
| mutex_lock(&dev->hw_atomic_mutex); |
| ret = __mt7601u_phy_set_channel(dev, chandef); |
| mutex_unlock(&dev->hw_atomic_mutex); |
| if (ret) |
| return ret; |
| |
| if (test_bit(MT7601U_STATE_SCANNING, &dev->state)) |
| return 0; |
| |
| ieee80211_queue_delayed_work(dev->hw, &dev->cal_work, |
| MT_CALIBRATE_INTERVAL); |
| if (dev->freq_cal.enabled) |
| ieee80211_queue_delayed_work(dev->hw, &dev->freq_cal.work, |
| MT_FREQ_CAL_INIT_DELAY); |
| return 0; |
| } |
| |
| #define BBP_R47_FLAG GENMASK(2, 0) |
| #define BBP_R47_F_TSSI 0 |
| #define BBP_R47_F_PKT_T 1 |
| #define BBP_R47_F_TX_RATE 2 |
| #define BBP_R47_F_TEMP 4 |
| /** |
| * mt7601u_bbp_r47_get - read value through BBP R47/R49 pair |
| * @dev: pointer to adapter structure |
| * @reg: value of BBP R47 before the operation |
| * @flag: one of the BBP_R47_F_* flags |
| * |
| * Convenience helper for reading values through BBP R47/R49 pair. |
| * Takes old value of BBP R47 as @reg, because callers usually have it |
| * cached already. |
| * |
| * Return: value of BBP R49. |
| */ |
| static u8 mt7601u_bbp_r47_get(struct mt7601u_dev *dev, u8 reg, u8 flag) |
| { |
| flag |= reg & ~BBP_R47_FLAG; |
| mt7601u_bbp_wr(dev, 47, flag); |
| usleep_range(500, 700); |
| return mt7601u_bbp_rr(dev, 49); |
| } |
| |
| static s8 mt7601u_read_bootup_temp(struct mt7601u_dev *dev) |
| { |
| u8 bbp_val, temp; |
| u32 rf_bp, rf_set; |
| int i; |
| |
| rf_set = mt7601u_rr(dev, MT_RF_SETTING_0); |
| rf_bp = mt7601u_rr(dev, MT_RF_BYPASS_0); |
| |
| mt7601u_wr(dev, MT_RF_BYPASS_0, 0); |
| mt7601u_wr(dev, MT_RF_SETTING_0, 0x00000010); |
| mt7601u_wr(dev, MT_RF_BYPASS_0, 0x00000010); |
| |
| bbp_val = mt7601u_bbp_rmw(dev, 47, 0, 0x10); |
| |
| mt7601u_bbp_wr(dev, 22, 0x40); |
| |
| for (i = 100; i && (bbp_val & 0x10); i--) |
| bbp_val = mt7601u_bbp_rr(dev, 47); |
| |
| temp = mt7601u_bbp_r47_get(dev, bbp_val, BBP_R47_F_TEMP); |
| |
| mt7601u_bbp_wr(dev, 22, 0); |
| |
| bbp_val = mt7601u_bbp_rr(dev, 21); |
| bbp_val |= 0x02; |
| mt7601u_bbp_wr(dev, 21, bbp_val); |
| bbp_val &= ~0x02; |
| mt7601u_bbp_wr(dev, 21, bbp_val); |
| |
| mt7601u_wr(dev, MT_RF_BYPASS_0, 0); |
| mt7601u_wr(dev, MT_RF_SETTING_0, rf_set); |
| mt7601u_wr(dev, MT_RF_BYPASS_0, rf_bp); |
| |
| trace_read_temp(dev, temp); |
| return temp; |
| } |
| |
| static s8 mt7601u_read_temp(struct mt7601u_dev *dev) |
| { |
| int i; |
| u8 val; |
| s8 temp; |
| |
| val = mt7601u_bbp_rmw(dev, 47, 0x7f, 0x10); |
| |
| /* Note: this rarely succeeds, temp can change even if it fails. */ |
| for (i = 100; i && (val & 0x10); i--) |
| val = mt7601u_bbp_rr(dev, 47); |
| |
| temp = mt7601u_bbp_r47_get(dev, val, BBP_R47_F_TEMP); |
| |
| trace_read_temp(dev, temp); |
| return temp; |
| } |
| |
| static void mt7601u_rxdc_cal(struct mt7601u_dev *dev) |
| { |
| static const struct mt76_reg_pair intro[] = { |
| { 158, 0x8d }, { 159, 0xfc }, |
| { 158, 0x8c }, { 159, 0x4c }, |
| }, outro[] = { |
| { 158, 0x8d }, { 159, 0xe0 }, |
| }; |
| u32 mac_ctrl; |
| int i, ret; |
| |
| mac_ctrl = mt7601u_rr(dev, MT_MAC_SYS_CTRL); |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, MT_MAC_SYS_CTRL_ENABLE_RX); |
| |
| ret = mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, |
| intro, ARRAY_SIZE(intro)); |
| if (ret) |
| dev_err(dev->dev, "%s intro failed:%d\n", __func__, ret); |
| |
| for (i = 20; i; i--) { |
| usleep_range(300, 500); |
| |
| mt7601u_bbp_wr(dev, 158, 0x8c); |
| if (mt7601u_bbp_rr(dev, 159) == 0x0c) |
| break; |
| } |
| if (!i) |
| dev_err(dev->dev, "%s timed out\n", __func__); |
| |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, 0); |
| |
| ret = mt7601u_write_reg_pairs(dev, MT_MCU_MEMMAP_BBP, |
| outro, ARRAY_SIZE(outro)); |
| if (ret) |
| dev_err(dev->dev, "%s outro failed:%d\n", __func__, ret); |
| |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, mac_ctrl); |
| } |
| |
| void mt7601u_phy_recalibrate_after_assoc(struct mt7601u_dev *dev) |
| { |
| mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->curr_temp); |
| |
| mt7601u_rxdc_cal(dev); |
| } |
| |
| /* Note: function copied from vendor driver */ |
| static s16 lin2dBd(u16 linear) |
| { |
| short exp = 0; |
| unsigned int mantisa; |
| int app, dBd; |
| |
| if (WARN_ON(!linear)) |
| return -10000; |
| |
| mantisa = linear; |
| |
| exp = fls(mantisa) - 16; |
| if (exp > 0) |
| mantisa >>= exp; |
| else |
| mantisa <<= abs(exp); |
| |
| if (mantisa <= 0xb800) |
| app = (mantisa + (mantisa >> 3) + (mantisa >> 4) - 0x9600); |
| else |
| app = (mantisa - (mantisa >> 3) - (mantisa >> 6) - 0x5a00); |
| if (app < 0) |
| app = 0; |
| |
| dBd = ((15 + exp) << 15) + app; |
| dBd = (dBd << 2) + (dBd << 1) + (dBd >> 6) + (dBd >> 7); |
| dBd = (dBd >> 10); |
| |
| return dBd; |
| } |
| |
| static void |
| mt7601u_set_initial_tssi(struct mt7601u_dev *dev, s16 tssi_db, s16 tssi_hvga_db) |
| { |
| struct tssi_data *d = &dev->ee->tssi_data; |
| int init_offset; |
| |
| init_offset = -((tssi_db * d->slope + d->offset[1]) / 4096) + 10; |
| |
| mt76_rmw(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP, |
| int_to_s6(init_offset) & MT_TX_ALC_CFG_1_TEMP_COMP); |
| } |
| |
| static void mt7601u_tssi_dc_gain_cal(struct mt7601u_dev *dev) |
| { |
| u8 rf_vga, rf_mixer, bbp_r47; |
| int i, j; |
| s8 res[4]; |
| s16 tssi_init_db, tssi_init_hvga_db; |
| |
| mt7601u_wr(dev, MT_RF_SETTING_0, 0x00000030); |
| mt7601u_wr(dev, MT_RF_BYPASS_0, 0x000c0030); |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, 0); |
| |
| mt7601u_bbp_wr(dev, 58, 0); |
| mt7601u_bbp_wr(dev, 241, 0x2); |
| mt7601u_bbp_wr(dev, 23, 0x8); |
| bbp_r47 = mt7601u_bbp_rr(dev, 47); |
| |
| /* Set VGA gain */ |
| rf_vga = mt7601u_rf_rr(dev, 5, 3); |
| mt7601u_rf_wr(dev, 5, 3, 8); |
| |
| /* Mixer disable */ |
| rf_mixer = mt7601u_rf_rr(dev, 4, 39); |
| mt7601u_rf_wr(dev, 4, 39, 0); |
| |
| for (i = 0; i < 4; i++) { |
| mt7601u_rf_wr(dev, 4, 39, (i & 1) ? rf_mixer : 0); |
| |
| mt7601u_bbp_wr(dev, 23, (i < 2) ? 0x08 : 0x02); |
| mt7601u_rf_wr(dev, 5, 3, (i < 2) ? 0x08 : 0x11); |
| |
| /* BBP TSSI initial and soft reset */ |
| mt7601u_bbp_wr(dev, 22, 0); |
| mt7601u_bbp_wr(dev, 244, 0); |
| |
| mt7601u_bbp_wr(dev, 21, 1); |
| udelay(1); |
| mt7601u_bbp_wr(dev, 21, 0); |
| |
| /* TSSI measurement */ |
| mt7601u_bbp_wr(dev, 47, 0x50); |
| mt7601u_bbp_wr(dev, (i & 1) ? 244 : 22, (i & 1) ? 0x31 : 0x40); |
| |
| for (j = 20; j; j--) |
| if (!(mt7601u_bbp_rr(dev, 47) & 0x10)) |
| break; |
| if (!j) |
| dev_err(dev->dev, "%s timed out\n", __func__); |
| |
| /* TSSI read */ |
| mt7601u_bbp_wr(dev, 47, 0x40); |
| res[i] = mt7601u_bbp_rr(dev, 49); |
| } |
| |
| tssi_init_db = lin2dBd((short)res[1] - res[0]); |
| tssi_init_hvga_db = lin2dBd(((short)res[3] - res[2]) * 4); |
| dev->tssi_init = res[0]; |
| dev->tssi_init_hvga = res[2]; |
| dev->tssi_init_hvga_offset_db = tssi_init_hvga_db - tssi_init_db; |
| |
| dev_dbg(dev->dev, |
| "TSSI_init:%hhx db:%hx hvga:%hhx hvga_db:%hx off_db:%hx\n", |
| dev->tssi_init, tssi_init_db, dev->tssi_init_hvga, |
| tssi_init_hvga_db, dev->tssi_init_hvga_offset_db); |
| |
| mt7601u_bbp_wr(dev, 22, 0); |
| mt7601u_bbp_wr(dev, 244, 0); |
| |
| mt7601u_bbp_wr(dev, 21, 1); |
| udelay(1); |
| mt7601u_bbp_wr(dev, 21, 0); |
| |
| mt7601u_wr(dev, MT_RF_BYPASS_0, 0); |
| mt7601u_wr(dev, MT_RF_SETTING_0, 0); |
| |
| mt7601u_rf_wr(dev, 5, 3, rf_vga); |
| mt7601u_rf_wr(dev, 4, 39, rf_mixer); |
| mt7601u_bbp_wr(dev, 47, bbp_r47); |
| |
| mt7601u_set_initial_tssi(dev, tssi_init_db, tssi_init_hvga_db); |
| } |
| |
| static int mt7601u_temp_comp(struct mt7601u_dev *dev, bool on) |
| { |
| int ret, temp, hi_temp = 400, lo_temp = -200; |
| |
| temp = (dev->raw_temp - dev->ee->ref_temp) * MT_EE_TEMPERATURE_SLOPE; |
| dev->curr_temp = temp; |
| |
| /* DPD Calibration */ |
| if (temp - dev->dpd_temp > 450 || temp - dev->dpd_temp < -450) { |
| dev->dpd_temp = temp; |
| |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->dpd_temp); |
| if (ret) |
| return ret; |
| |
| mt7601u_vco_cal(dev); |
| |
| dev_dbg(dev->dev, "Recalibrate DPD\n"); |
| } |
| |
| /* PLL Lock Protect */ |
| if (temp < -50 && !dev->pll_lock_protect) { /* < 20C */ |
| dev->pll_lock_protect = true; |
| |
| mt7601u_rf_wr(dev, 4, 4, 6); |
| mt7601u_rf_clear(dev, 4, 10, 0x30); |
| |
| dev_dbg(dev->dev, "PLL lock protect on - too cold\n"); |
| } else if (temp > 50 && dev->pll_lock_protect) { /* > 30C */ |
| dev->pll_lock_protect = false; |
| |
| mt7601u_rf_wr(dev, 4, 4, 0); |
| mt7601u_rf_rmw(dev, 4, 10, 0x30, 0x10); |
| |
| dev_dbg(dev->dev, "PLL lock protect off\n"); |
| } |
| |
| if (on) { |
| hi_temp -= 50; |
| lo_temp -= 50; |
| } |
| |
| /* BBP CR for H, L, N temperature */ |
| if (temp > hi_temp) |
| return mt7601u_bbp_temp(dev, MT_TEMP_MODE_HIGH, "high"); |
| else if (temp > lo_temp) |
| return mt7601u_bbp_temp(dev, MT_TEMP_MODE_NORMAL, "normal"); |
| else |
| return mt7601u_bbp_temp(dev, MT_TEMP_MODE_LOW, "low"); |
| } |
| |
| /* Note: this is used only with TSSI, we can just use trgt_pwr from eeprom. */ |
| static int mt7601u_current_tx_power(struct mt7601u_dev *dev) |
| { |
| return dev->ee->chan_pwr[dev->chandef.chan->hw_value - 1]; |
| } |
| |
| static bool mt7601u_use_hvga(struct mt7601u_dev *dev) |
| { |
| return !(mt7601u_current_tx_power(dev) > 20); |
| } |
| |
| static s16 |
| mt7601u_phy_rf_pa_mode_val(struct mt7601u_dev *dev, int phy_mode, int tx_rate) |
| { |
| static const s16 decode_tb[] = { 0, 8847, -5734, -5734 }; |
| u32 reg; |
| |
| switch (phy_mode) { |
| case MT_PHY_TYPE_OFDM: |
| tx_rate += 4; |
| fallthrough; |
| case MT_PHY_TYPE_CCK: |
| reg = dev->rf_pa_mode[0]; |
| break; |
| default: |
| reg = dev->rf_pa_mode[1]; |
| break; |
| } |
| |
| return decode_tb[(reg >> (tx_rate * 2)) & 0x3]; |
| } |
| |
| static struct mt7601u_tssi_params |
| mt7601u_tssi_params_get(struct mt7601u_dev *dev) |
| { |
| static const u8 ofdm_pkt2rate[8] = { 6, 4, 2, 0, 7, 5, 3, 1 }; |
| static const int static_power[4] = { 0, -49152, -98304, 49152 }; |
| struct mt7601u_tssi_params p; |
| u8 bbp_r47, pkt_type, tx_rate; |
| struct power_per_rate *rate_table; |
| |
| bbp_r47 = mt7601u_bbp_rr(dev, 47); |
| |
| p.tssi0 = mt7601u_bbp_r47_get(dev, bbp_r47, BBP_R47_F_TSSI); |
| dev->raw_temp = mt7601u_bbp_r47_get(dev, bbp_r47, BBP_R47_F_TEMP); |
| pkt_type = mt7601u_bbp_r47_get(dev, bbp_r47, BBP_R47_F_PKT_T); |
| |
| p.trgt_power = mt7601u_current_tx_power(dev); |
| |
| switch (pkt_type & 0x03) { |
| case MT_PHY_TYPE_CCK: |
| tx_rate = (pkt_type >> 4) & 0x03; |
| rate_table = dev->ee->power_rate_table.cck; |
| break; |
| |
| case MT_PHY_TYPE_OFDM: |
| tx_rate = ofdm_pkt2rate[(pkt_type >> 4) & 0x07]; |
| rate_table = dev->ee->power_rate_table.ofdm; |
| break; |
| |
| default: |
| tx_rate = mt7601u_bbp_r47_get(dev, bbp_r47, BBP_R47_F_TX_RATE); |
| tx_rate &= 0x7f; |
| rate_table = dev->ee->power_rate_table.ht; |
| break; |
| } |
| |
| if (dev->bw == MT_BW_20) |
| p.trgt_power += rate_table[tx_rate / 2].bw20; |
| else |
| p.trgt_power += rate_table[tx_rate / 2].bw40; |
| |
| p.trgt_power <<= 12; |
| |
| dev_dbg(dev->dev, "tx_rate:%02hhx pwr:%08x\n", tx_rate, p.trgt_power); |
| |
| p.trgt_power += mt7601u_phy_rf_pa_mode_val(dev, pkt_type & 0x03, |
| tx_rate); |
| |
| /* Channel 14, cck, bw20 */ |
| if ((pkt_type & 0x03) == MT_PHY_TYPE_CCK) { |
| if (mt7601u_bbp_rr(dev, 4) & 0x20) |
| p.trgt_power += mt7601u_bbp_rr(dev, 178) ? 18022 : 9830; |
| else |
| p.trgt_power += mt7601u_bbp_rr(dev, 178) ? 819 : 24576; |
| } |
| |
| p.trgt_power += static_power[mt7601u_bbp_rr(dev, 1) & 0x03]; |
| |
| p.trgt_power += dev->ee->tssi_data.tx0_delta_offset; |
| |
| dev_dbg(dev->dev, |
| "tssi:%02hhx t_power:%08x temp:%02hhx pkt_type:%02hhx\n", |
| p.tssi0, p.trgt_power, dev->raw_temp, pkt_type); |
| |
| return p; |
| } |
| |
| static bool mt7601u_tssi_read_ready(struct mt7601u_dev *dev) |
| { |
| return !(mt7601u_bbp_rr(dev, 47) & 0x10); |
| } |
| |
| static int mt7601u_tssi_cal(struct mt7601u_dev *dev) |
| { |
| struct mt7601u_tssi_params params; |
| int curr_pwr, diff_pwr; |
| char tssi_offset; |
| s8 tssi_init; |
| s16 tssi_m_dc, tssi_db; |
| bool hvga; |
| u32 val; |
| |
| if (!dev->ee->tssi_enabled) |
| return 0; |
| |
| hvga = mt7601u_use_hvga(dev); |
| if (!dev->tssi_read_trig) |
| return mt7601u_mcu_tssi_read_kick(dev, hvga); |
| |
| if (!mt7601u_tssi_read_ready(dev)) |
| return 0; |
| |
| params = mt7601u_tssi_params_get(dev); |
| |
| tssi_init = (hvga ? dev->tssi_init_hvga : dev->tssi_init); |
| tssi_m_dc = params.tssi0 - tssi_init; |
| tssi_db = lin2dBd(tssi_m_dc); |
| dev_dbg(dev->dev, "tssi dc:%04hx db:%04hx hvga:%d\n", |
| tssi_m_dc, tssi_db, hvga); |
| |
| if (dev->chandef.chan->hw_value < 5) |
| tssi_offset = dev->ee->tssi_data.offset[0]; |
| else if (dev->chandef.chan->hw_value < 9) |
| tssi_offset = dev->ee->tssi_data.offset[1]; |
| else |
| tssi_offset = dev->ee->tssi_data.offset[2]; |
| |
| if (hvga) |
| tssi_db -= dev->tssi_init_hvga_offset_db; |
| |
| curr_pwr = tssi_db * dev->ee->tssi_data.slope + (tssi_offset << 9); |
| diff_pwr = params.trgt_power - curr_pwr; |
| dev_dbg(dev->dev, "Power curr:%08x diff:%08x\n", curr_pwr, diff_pwr); |
| |
| if (params.tssi0 > 126 && diff_pwr > 0) { |
| dev_err(dev->dev, "Error: TSSI upper saturation\n"); |
| diff_pwr = 0; |
| } |
| if (params.tssi0 - tssi_init < 1 && diff_pwr < 0) { |
| dev_err(dev->dev, "Error: TSSI lower saturation\n"); |
| diff_pwr = 0; |
| } |
| |
| if ((dev->prev_pwr_diff ^ diff_pwr) < 0 && abs(diff_pwr) < 4096 && |
| (abs(diff_pwr) > abs(dev->prev_pwr_diff) || |
| (diff_pwr > 0 && diff_pwr == -dev->prev_pwr_diff))) |
| diff_pwr = 0; |
| else |
| dev->prev_pwr_diff = diff_pwr; |
| |
| diff_pwr += (diff_pwr > 0) ? 2048 : -2048; |
| diff_pwr /= 4096; |
| |
| dev_dbg(dev->dev, "final diff: %08x\n", diff_pwr); |
| |
| val = mt7601u_rr(dev, MT_TX_ALC_CFG_1); |
| curr_pwr = s6_to_int(FIELD_GET(MT_TX_ALC_CFG_1_TEMP_COMP, val)); |
| diff_pwr += curr_pwr; |
| val = (val & ~MT_TX_ALC_CFG_1_TEMP_COMP) | int_to_s6(diff_pwr); |
| mt7601u_wr(dev, MT_TX_ALC_CFG_1, val); |
| |
| return mt7601u_mcu_tssi_read_kick(dev, hvga); |
| } |
| |
| static u8 mt7601u_agc_default(struct mt7601u_dev *dev) |
| { |
| return (dev->ee->lna_gain - 8) * 2 + 0x34; |
| } |
| |
| static void mt7601u_agc_reset(struct mt7601u_dev *dev) |
| { |
| u8 agc = mt7601u_agc_default(dev); |
| |
| mt7601u_bbp_wr(dev, 66, agc); |
| } |
| |
| void mt7601u_agc_save(struct mt7601u_dev *dev) |
| { |
| dev->agc_save = mt7601u_bbp_rr(dev, 66); |
| } |
| |
| void mt7601u_agc_restore(struct mt7601u_dev *dev) |
| { |
| mt7601u_bbp_wr(dev, 66, dev->agc_save); |
| } |
| |
| static void mt7601u_agc_tune(struct mt7601u_dev *dev) |
| { |
| u8 val = mt7601u_agc_default(dev); |
| long avg_rssi; |
| |
| if (test_bit(MT7601U_STATE_SCANNING, &dev->state)) |
| return; |
| |
| /* Note: only in STA mode and not dozing; perhaps do this only if |
| * there is enough rssi updates since last run? |
| * Rssi updates are only on beacons and U2M so should work... |
| */ |
| spin_lock_bh(&dev->con_mon_lock); |
| avg_rssi = ewma_rssi_read(&dev->avg_rssi); |
| spin_unlock_bh(&dev->con_mon_lock); |
| if (avg_rssi == 0) |
| return; |
| |
| avg_rssi = -avg_rssi; |
| if (avg_rssi <= -70) |
| val -= 0x20; |
| else if (avg_rssi <= -60) |
| val -= 0x10; |
| |
| if (val != mt7601u_bbp_rr(dev, 66)) |
| mt7601u_bbp_wr(dev, 66, val); |
| |
| /* TODO: also if lost a lot of beacons try resetting |
| * (see RTMPSetAGCInitValue() call in mlme.c). |
| */ |
| } |
| |
| static void mt7601u_phy_calibrate(struct work_struct *work) |
| { |
| struct mt7601u_dev *dev = container_of(work, struct mt7601u_dev, |
| cal_work.work); |
| |
| mt7601u_agc_tune(dev); |
| mt7601u_tssi_cal(dev); |
| /* If TSSI calibration was run it already updated temperature. */ |
| if (!dev->ee->tssi_enabled) |
| dev->raw_temp = mt7601u_read_temp(dev); |
| mt7601u_temp_comp(dev, true); /* TODO: find right value for @on */ |
| |
| ieee80211_queue_delayed_work(dev->hw, &dev->cal_work, |
| MT_CALIBRATE_INTERVAL); |
| } |
| |
| static unsigned long |
| __mt7601u_phy_freq_cal(struct mt7601u_dev *dev, s8 last_offset, u8 phy_mode) |
| { |
| u8 activate_threshold, deactivate_threshold; |
| |
| trace_freq_cal_offset(dev, phy_mode, last_offset); |
| |
| /* No beacons received - reschedule soon */ |
| if (last_offset == MT_FREQ_OFFSET_INVALID) |
| return MT_FREQ_CAL_ADJ_INTERVAL; |
| |
| switch (phy_mode) { |
| case MT_PHY_TYPE_CCK: |
| activate_threshold = 19; |
| deactivate_threshold = 5; |
| break; |
| case MT_PHY_TYPE_OFDM: |
| activate_threshold = 102; |
| deactivate_threshold = 32; |
| break; |
| case MT_PHY_TYPE_HT: |
| case MT_PHY_TYPE_HT_GF: |
| activate_threshold = 82; |
| deactivate_threshold = 20; |
| break; |
| default: |
| WARN_ON(1); |
| return MT_FREQ_CAL_CHECK_INTERVAL; |
| } |
| |
| if (abs(last_offset) >= activate_threshold) |
| dev->freq_cal.adjusting = true; |
| else if (abs(last_offset) <= deactivate_threshold) |
| dev->freq_cal.adjusting = false; |
| |
| if (!dev->freq_cal.adjusting) |
| return MT_FREQ_CAL_CHECK_INTERVAL; |
| |
| if (last_offset > deactivate_threshold) { |
| if (dev->freq_cal.freq > 0) |
| dev->freq_cal.freq--; |
| else |
| dev->freq_cal.adjusting = false; |
| } else if (last_offset < -deactivate_threshold) { |
| if (dev->freq_cal.freq < 0xbf) |
| dev->freq_cal.freq++; |
| else |
| dev->freq_cal.adjusting = false; |
| } |
| |
| trace_freq_cal_adjust(dev, dev->freq_cal.freq); |
| mt7601u_rf_wr(dev, 0, 12, dev->freq_cal.freq); |
| mt7601u_vco_cal(dev); |
| |
| return dev->freq_cal.adjusting ? MT_FREQ_CAL_ADJ_INTERVAL : |
| MT_FREQ_CAL_CHECK_INTERVAL; |
| } |
| |
| static void mt7601u_phy_freq_cal(struct work_struct *work) |
| { |
| struct mt7601u_dev *dev = container_of(work, struct mt7601u_dev, |
| freq_cal.work.work); |
| s8 last_offset; |
| u8 phy_mode; |
| unsigned long delay; |
| |
| spin_lock_bh(&dev->con_mon_lock); |
| last_offset = dev->bcn_freq_off; |
| phy_mode = dev->bcn_phy_mode; |
| spin_unlock_bh(&dev->con_mon_lock); |
| |
| delay = __mt7601u_phy_freq_cal(dev, last_offset, phy_mode); |
| ieee80211_queue_delayed_work(dev->hw, &dev->freq_cal.work, delay); |
| |
| spin_lock_bh(&dev->con_mon_lock); |
| dev->bcn_freq_off = MT_FREQ_OFFSET_INVALID; |
| spin_unlock_bh(&dev->con_mon_lock); |
| } |
| |
| void mt7601u_phy_con_cal_onoff(struct mt7601u_dev *dev, |
| struct ieee80211_bss_conf *info) |
| { |
| if (!info->assoc) |
| cancel_delayed_work_sync(&dev->freq_cal.work); |
| |
| /* Start/stop collecting beacon data */ |
| spin_lock_bh(&dev->con_mon_lock); |
| ether_addr_copy(dev->ap_bssid, info->bssid); |
| ewma_rssi_init(&dev->avg_rssi); |
| dev->bcn_freq_off = MT_FREQ_OFFSET_INVALID; |
| spin_unlock_bh(&dev->con_mon_lock); |
| |
| dev->freq_cal.freq = dev->ee->rf_freq_off; |
| dev->freq_cal.enabled = info->assoc; |
| dev->freq_cal.adjusting = false; |
| |
| if (info->assoc) |
| ieee80211_queue_delayed_work(dev->hw, &dev->freq_cal.work, |
| MT_FREQ_CAL_INIT_DELAY); |
| } |
| |
| static int mt7601u_init_cal(struct mt7601u_dev *dev) |
| { |
| u32 mac_ctrl; |
| int ret; |
| |
| dev->raw_temp = mt7601u_read_bootup_temp(dev); |
| dev->curr_temp = (dev->raw_temp - dev->ee->ref_temp) * |
| MT_EE_TEMPERATURE_SLOPE; |
| dev->dpd_temp = dev->curr_temp; |
| |
| mac_ctrl = mt7601u_rr(dev, MT_MAC_SYS_CTRL); |
| |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_R, 0); |
| if (ret) |
| return ret; |
| |
| ret = mt7601u_rf_rr(dev, 0, 4); |
| if (ret < 0) |
| return ret; |
| ret |= 0x80; |
| ret = mt7601u_rf_wr(dev, 0, 4, ret); |
| if (ret) |
| return ret; |
| msleep(2); |
| |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_TXDCOC, 0); |
| if (ret) |
| return ret; |
| |
| mt7601u_rxdc_cal(dev); |
| |
| ret = mt7601u_set_bw_filter(dev, true); |
| if (ret) |
| return ret; |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_LOFT, 0); |
| if (ret) |
| return ret; |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_TXIQ, 0); |
| if (ret) |
| return ret; |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_RXIQ, 0); |
| if (ret) |
| return ret; |
| ret = mt7601u_mcu_calibrate(dev, MCU_CAL_DPD, dev->dpd_temp); |
| if (ret) |
| return ret; |
| |
| mt7601u_rxdc_cal(dev); |
| |
| mt7601u_tssi_dc_gain_cal(dev); |
| |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, mac_ctrl); |
| |
| mt7601u_temp_comp(dev, true); |
| |
| return 0; |
| } |
| |
| int mt7601u_bbp_set_bw(struct mt7601u_dev *dev, int bw) |
| { |
| u32 val, old; |
| |
| if (bw == dev->bw) { |
| /* Vendor driver does the rmc even when no change is needed. */ |
| mt7601u_bbp_rmc(dev, 4, 0x18, bw == MT_BW_20 ? 0 : 0x10); |
| |
| return 0; |
| } |
| dev->bw = bw; |
| |
| /* Stop MAC for the time of bw change */ |
| old = mt7601u_rr(dev, MT_MAC_SYS_CTRL); |
| val = old & ~(MT_MAC_SYS_CTRL_ENABLE_TX | MT_MAC_SYS_CTRL_ENABLE_RX); |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, val); |
| mt76_poll(dev, MT_MAC_STATUS, MT_MAC_STATUS_TX | MT_MAC_STATUS_RX, |
| 0, 500000); |
| |
| mt7601u_bbp_rmc(dev, 4, 0x18, bw == MT_BW_20 ? 0 : 0x10); |
| |
| mt7601u_wr(dev, MT_MAC_SYS_CTRL, old); |
| |
| return mt7601u_load_bbp_temp_table_bw(dev); |
| } |
| |
| /** |
| * mt7601u_set_rx_path - set rx path in BBP |
| * @dev: pointer to adapter structure |
| * @path: rx path to set values are 0-based |
| */ |
| void mt7601u_set_rx_path(struct mt7601u_dev *dev, u8 path) |
| { |
| mt7601u_bbp_rmw(dev, 3, 0x18, path << 3); |
| } |
| |
| /** |
| * mt7601u_set_tx_dac - set which tx DAC to use |
| * @dev: pointer to adapter structure |
| * @dac: DAC index, values are 0-based |
| */ |
| void mt7601u_set_tx_dac(struct mt7601u_dev *dev, u8 dac) |
| { |
| mt7601u_bbp_rmc(dev, 1, 0x18, dac << 3); |
| } |
| |
| int mt7601u_phy_init(struct mt7601u_dev *dev) |
| { |
| int ret; |
| |
| dev->rf_pa_mode[0] = mt7601u_rr(dev, MT_RF_PA_MODE_CFG0); |
| dev->rf_pa_mode[1] = mt7601u_rr(dev, MT_RF_PA_MODE_CFG1); |
| |
| ret = mt7601u_rf_wr(dev, 0, 12, dev->ee->rf_freq_off); |
| if (ret) |
| return ret; |
| ret = mt7601u_write_reg_pairs(dev, 0, rf_central, |
| ARRAY_SIZE(rf_central)); |
| if (ret) |
| return ret; |
| ret = mt7601u_write_reg_pairs(dev, 0, rf_channel, |
| ARRAY_SIZE(rf_channel)); |
| if (ret) |
| return ret; |
| ret = mt7601u_write_reg_pairs(dev, 0, rf_vga, ARRAY_SIZE(rf_vga)); |
| if (ret) |
| return ret; |
| |
| ret = mt7601u_init_cal(dev); |
| if (ret) |
| return ret; |
| |
| dev->prev_pwr_diff = 100; |
| |
| INIT_DELAYED_WORK(&dev->cal_work, mt7601u_phy_calibrate); |
| INIT_DELAYED_WORK(&dev->freq_cal.work, mt7601u_phy_freq_cal); |
| |
| return 0; |
| } |
