2021-10-20 15:28:10

by Ryder Lee

[permalink] [raw]
Subject: [PATCH] mt76: mt7615: apply cached RF data for DBDC

Band0 and band1 share the same hardware, so band0 will stop Tx/Rx when
band1 performs Rx calibration. cal_cache is introduced to solve such
corner cases by moving necessary datas from channel_switch to bootup.

Co-developed-by: Peter Chiu <[email protected]>
Signed-off-by: Peter Chiu <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
---
.../net/wireless/mediatek/mt76/mt7615/mcu.c | 22 +++++++++++++++++--
.../wireless/mediatek/mt76/mt76_connac_mcu.h | 1 +
2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index 2cb3969e6432..25f9cbe2cd61 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -1698,6 +1698,19 @@ int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl)
sizeof(data), true);
}

+static int mt7615_mcu_cal_cache_apply(struct mt7615_dev *dev)
+{
+ struct {
+ bool cache_enable;
+ u8 pad[3];
+ } data = {
+ .cache_enable = true
+ };
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_CAL_CACHE, &data,
+ sizeof(data), false);
+}
+
static int mt7663_load_n9(struct mt7615_dev *dev, const char *name)
{
u32 offset = 0, override_addr = 0, flag = FW_START_DLYCAL;
@@ -1906,9 +1919,14 @@ int mt7615_mcu_init(struct mt7615_dev *dev)
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
dev_dbg(dev->mt76.dev, "Firmware init done\n");
set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
- mt7615_mcu_fw_log_2_host(dev, 0);

- return 0;
+ if (dev->dbdc_support) {
+ ret = mt7615_mcu_cal_cache_apply(dev);
+ if (ret)
+ return ret;
+ }
+
+ return mt7615_mcu_fw_log_2_host(dev, 0);
}
EXPORT_SYMBOL_GPL(mt7615_mcu_init);

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index b89faab04996..4e2c9dafd776 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -531,6 +531,7 @@ enum {
MCU_EXT_CMD_TX_POWER_FEATURE_CTRL = 0x58,
MCU_EXT_CMD_RXDCOC_CAL = 0x59,
MCU_EXT_CMD_TXDPD_CAL = 0x60,
+ MCU_EXT_CMD_CAL_CACHE = 0x67,
MCU_EXT_CMD_SET_RDD_TH = 0x7c,
MCU_EXT_CMD_SET_RDD_PATTERN = 0x7d,
};
--
2.29.2