Useful for debugging firmware issues. Can be turned on via the "fw_debug"
debugfs file
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
.../wireless/mediatek/mt76/mt7615/debugfs.c | 28 +++++++++++++
.../net/wireless/mediatek/mt76/mt7615/mcu.c | 39 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7615/mcu.h | 1 +
.../wireless/mediatek/mt76/mt7615/mt7615.h | 2 +
4 files changed, 70 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index 783f145b7d02..158c0c183e9c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@ -71,6 +71,33 @@ mt7615_dbdc_get(void *data, u64 *val)
DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7615_dbdc_get,
mt7615_dbdc_set, "%lld\n");
+static int
+mt7615_fw_debug_set(void *data, u64 val)
+{
+ struct mt7615_dev *dev = data;
+
+ if (!mt7615_wait_for_mcu_init(dev))
+ return 0;
+
+ dev->fw_debug = val;
+ mt7615_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);
+
+ return 0;
+}
+
+static int
+mt7615_fw_debug_get(void *data, u64 *val)
+{
+ struct mt7615_dev *dev = data;
+
+ *val = dev->fw_debug;
+
+ return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7615_fw_debug_get,
+ mt7615_fw_debug_set, "%lld\n");
+
static int
mt7615_ampdu_stat_read(struct seq_file *file, void *data)
{
@@ -222,6 +249,7 @@ int mt7615_init_debugfs(struct mt7615_dev *dev)
debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
debugfs_create_file("scs", 0600, dir, dev, &fops_scs);
debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
+ debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir,
mt7615_radio_read);
debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index e43d480ed1ae..94b3c59373d1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -201,6 +201,28 @@ mt7615_mcu_rx_radar_detected(struct mt7615_dev *dev, struct sk_buff *skb)
dev->hw_pattern++;
}
+static void
+mt7615_mcu_rx_log_message(struct mt7615_dev *dev, struct sk_buff *skb)
+{
+ struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data;
+ const char *data = (char *)&rxd[1];
+ const char *type;
+
+ switch (rxd->s2d_index) {
+ case 0:
+ type = "N9";
+ break;
+ case 2:
+ type = "CR4";
+ break;
+ default:
+ type = "unknown";
+ break;
+ }
+
+ wiphy_info(mt76_hw(dev)->wiphy, "%s: %s", type, data);
+}
+
static void
mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb)
{
@@ -215,6 +237,9 @@ mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb)
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7615_mcu_csa_finish, dev);
break;
+ case MCU_EXT_EVENT_FW_LOG_2_HOST:
+ mt7615_mcu_rx_log_message(dev, skb);
+ break;
default:
break;
}
@@ -643,6 +668,19 @@ static int mt7622_load_firmware(struct mt7615_dev *dev)
return 0;
}
+int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl)
+{
+ struct {
+ u8 ctrl_val;
+ u8 pad[3];
+ } data = {
+ .ctrl_val = ctrl
+ };
+
+ return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_FW_LOG_2_HOST,
+ &data, sizeof(data), true);
+}
+
int mt7615_mcu_init(struct mt7615_dev *dev)
{
static const struct mt76_mcu_ops mt7615_mcu_ops = {
@@ -667,6 +705,7 @@ int mt7615_mcu_init(struct mt7615_dev *dev)
mt76_queue_tx_cleanup(dev, MT_TXQ_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;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
index 640b00b8aa32..2fbfbdb2c53d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
@@ -195,6 +195,7 @@ enum {
MCU_EXT_CMD_PM_STATE_CTRL = 0x07,
MCU_EXT_CMD_CHANNEL_SWITCH = 0x08,
MCU_EXT_CMD_SET_TX_POWER_CTRL = 0x11,
+ MCU_EXT_CMD_FW_LOG_2_HOST = 0x13,
MCU_EXT_CMD_EFUSE_BUFFER_MODE = 0x21,
MCU_EXT_CMD_STA_REC_UPDATE = 0x25,
MCU_EXT_CMD_BSS_INFO_UPDATE = 0x26,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index b43a09894487..b4748cf079b1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -169,6 +169,7 @@ struct mt7615_dev {
u8 mac_work_count;
bool scs_en;
+ bool fw_debug;
spinlock_t token_lock;
struct idr token;
@@ -308,6 +309,7 @@ int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev,
enum mt7615_rdd_cmd cmd, u8 index,
u8 rx_sel, u8 val);
int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev);
+int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl);
static inline bool is_mt7622(struct mt76_dev *dev)
{
--
2.24.0
