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From:   Shayne Chen <shayne.chen@mediatek.com>
To:     Felix Fietkau <nbd@nbd.name>
CC:     linux-wireless <linux-wireless@vger.kernel.org>,
        Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        "Evelyn Tsai" <evelyn.tsai@mediatek.com>,
        linux-mediatek <linux-mediatek@lists.infradead.org>,
        Shayne Chen <shayne.chen@mediatek.com>
Subject: [PATCH v3 1/2] mt76: mt7915: add WA firmware log support
Date:   Fri, 1 Oct 2021 17:36:35 +0800
Message-ID: <20211001093636.10501-1-shayne.chen@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Support to turn on/off WA firmware log from debugfs.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 .../wireless/mediatek/mt76/mt7915/debugfs.c   | 42 +++++++++++++++----
 .../net/wireless/mediatek/mt76/mt7915/mcu.c   | 12 +++++-
 .../net/wireless/mediatek/mt76/mt7915/mcu.h   |  6 +++
 .../wireless/mediatek/mt76/mt7915/mt7915.h    |  5 ++-
 4 files changed, 52 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index 8c1725c00126..b9689762f529 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -82,7 +82,7 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
 			 mt7915_radar_trigger, "%lld\n");
 
 static int
-mt7915_fw_debug_set(void *data, u64 val)
+mt7915_fw_debug_wm_set(void *data, u64 val)
 {
 	struct mt7915_dev *dev = data;
 	enum {
@@ -93,28 +93,51 @@ mt7915_fw_debug_set(void *data, u64 val)
 		DEBUG_RPT_RX,
 	} debug;
 
-	dev->fw_debug = !!val;
+	dev->fw_debug_wm = val ? MCU_FW_LOG_TO_HOST : 0;
 
-	mt7915_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);
+	mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WM, dev->fw_debug_wm);
 
 	for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++)
-		mt7915_mcu_fw_dbg_ctrl(dev, debug, dev->fw_debug);
+		mt7915_mcu_fw_dbg_ctrl(dev, debug, !!dev->fw_debug_wm);
 
 	return 0;
 }
 
 static int
-mt7915_fw_debug_get(void *data, u64 *val)
+mt7915_fw_debug_wm_get(void *data, u64 *val)
 {
 	struct mt7915_dev *dev = data;
 
-	*val = dev->fw_debug;
+	*val = dev->fw_debug_wm;
 
 	return 0;
 }
 
-DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
-			 mt7915_fw_debug_set, "%lld\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wm, mt7915_fw_debug_wm_get,
+			 mt7915_fw_debug_wm_set, "%lld\n");
+
+static int
+mt7915_fw_debug_wa_set(void *data, u64 val)
+{
+	struct mt7915_dev *dev = data;
+
+	dev->fw_debug_wa = val ? MCU_FW_LOG_TO_HOST : 0;
+
+	return mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, dev->fw_debug_wa);
+}
+
+static int
+mt7915_fw_debug_wa_get(void *data, u64 *val)
+{
+	struct mt7915_dev *dev = data;
+
+	*val = dev->fw_debug_wa;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug_wa, mt7915_fw_debug_wa_get,
+			 mt7915_fw_debug_wa_set, "%lld\n");
 
 static void
 mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy,
@@ -455,7 +478,8 @@ int mt7915_init_debugfs(struct mt7915_dev *dev)
 	debugfs_create_devm_seqfile(dev->mt76.dev, "hw-queues", dir,
 				    mt7915_hw_queues_read);
 	debugfs_create_file("tx_stats", 0400, dir, dev, &mt7915_tx_stats_fops);
-	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
+	debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm);
+	debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa);
 	debugfs_create_file("implicit_txbf", 0600, dir, dev,
 			    &fops_implicit_txbf);
 	debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 7415b9391175..419b2acad41d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2824,7 +2824,7 @@ static int mt7915_load_firmware(struct mt7915_dev *dev)
 	return 0;
 }
 
-int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 ctrl)
+int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 type, u8 ctrl)
 {
 	struct {
 		u8 ctrl_val;
@@ -2833,6 +2833,10 @@ int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 ctrl)
 		.ctrl_val = ctrl
 	};
 
+	if (type == MCU_FW_LOG_WA)
+		return mt76_mcu_send_msg(&dev->mt76, MCU_WA_EXT_CMD(FW_LOG_2_HOST),
+					 &data, sizeof(data), true);
+
 	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(FW_LOG_2_HOST), &data,
 				 sizeof(data), true);
 }
@@ -2889,7 +2893,11 @@ int mt7915_mcu_init(struct mt7915_dev *dev)
 		return ret;
 
 	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
-	ret = mt7915_mcu_fw_log_2_host(dev, 0);
+	ret = mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WM, 0);
+	if (ret)
+		return ret;
+
+	ret = mt7915_mcu_fw_log_2_host(dev, MCU_FW_LOG_WA, 0);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index e02659272f9e..4a601bdee156 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -230,6 +230,12 @@ enum {
 };
 
 
+enum {
+	MCU_FW_LOG_WM,
+	MCU_FW_LOG_WA,
+	MCU_FW_LOG_TO_HOST,
+};
+
 #define __MCU_CMD_FIELD_ID	GENMASK(7, 0)
 #define __MCU_CMD_FIELD_EXT_ID	GENMASK(15, 8)
 #define __MCU_CMD_FIELD_QUERY	BIT(16)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index ff3be5ba2ce9..50c7c8c09d83 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -184,8 +184,9 @@ struct mt7915_dev {
 
 	bool dbdc_support;
 	bool flash_mode;
-	bool fw_debug;
 	bool ibf;
+	u8 fw_debug_wm;
+	u8 fw_debug_wa;
 
 	void *cal;
 };
@@ -355,7 +356,7 @@ int mt7915_mcu_get_rx_rate(struct mt7915_phy *phy, struct ieee80211_vif *vif,
 			   struct ieee80211_sta *sta, struct rate_info *rate);
 int mt7915_mcu_rdd_cmd(struct mt7915_dev *dev, enum mt7915_rdd_cmd cmd,
 		       u8 index, u8 rx_sel, u8 val);
-int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 ctrl);
+int mt7915_mcu_fw_log_2_host(struct mt7915_dev *dev, u8 type, u8 ctrl);
 int mt7915_mcu_fw_dbg_ctrl(struct mt7915_dev *dev, u32 module, u8 level);
 void mt7915_mcu_rx_event(struct mt7915_dev *dev, struct sk_buff *skb);
 void mt7915_mcu_exit(struct mt7915_dev *dev);
-- 
2.25.1