drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c - linux - Git at Google

 // SPDX-License-Identifier: ISC
 /* Copyright (C) 2020 MediaTek Inc. */

 #include "mt7915.h"
 #include "eeprom.h"

 /** global debugfs **/

 /* test knob of system layer 1/2 error recovery */
 static int mt7915_ser_trigger_set(void *data, u64 val)
 {
 	enum {
 		SER_SET_RECOVER_L1 = 1,
 		SER_SET_RECOVER_L2,
 		SER_ENABLE = 2,
 		SER_RECOVER
 	};
 	struct mt7915_dev *dev = data;
 	int ret = 0;

 	switch (val) {
 	case SER_SET_RECOVER_L1:
 	case SER_SET_RECOVER_L2:
 		ret = mt7915_mcu_set_ser(dev, SER_ENABLE, BIT(val), 0);
 		if (ret)
 			return ret;

 		return mt7915_mcu_set_ser(dev, SER_RECOVER, val, 0);
 	default:
 		break;
 	}

 	return ret;
 }

 DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
 			 mt7915_ser_trigger_set, "%lld\n");

 static int
 mt7915_radar_trigger(void *data, u64 val)
 {
 	struct mt7915_dev *dev = data;

 	return mt7915_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, 1, 0, 0);
 }

 DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
 			 mt7915_radar_trigger, "%lld\n");

 static int
 mt7915_dbdc_set(void *data, u64 val)
 {
 	struct mt7915_dev *dev = data;

 	if (val)
 		mt7915_register_ext_phy(dev);
 	else
 		mt7915_unregister_ext_phy(dev);

 	return 0;
 }

 static int
 mt7915_dbdc_get(void *data, u64 *val)
 {
 	struct mt7915_dev *dev = data;

 	*val = !!mt7915_ext_phy(dev);

 	return 0;
 }

 DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7915_dbdc_get,
 			 mt7915_dbdc_set, "%lld\n");

 static int
 mt7915_fw_debug_set(void *data, u64 val)
 {
 	struct mt7915_dev *dev = data;
 	enum {
 		DEBUG_TXCMD = 62,
 		DEBUG_CMD_RPT_TX,
 		DEBUG_CMD_RPT_TRIG,
 		DEBUG_SPL,
 		DEBUG_RPT_RX,
 	} debug;

 	dev->fw_debug = !!val;

 	mt7915_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);

 	for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++)
 		mt7915_mcu_fw_dbg_ctrl(dev, debug, dev->fw_debug);

 	return 0;
 }

 static int
 mt7915_fw_debug_get(void *data, u64 *val)
 {
 	struct mt7915_dev *dev = data;

 	*val = dev->fw_debug;

 	return 0;
 }

 DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
 			 mt7915_fw_debug_set, "%lld\n");

 static void
 mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy,
 			   struct seq_file *file)
 {
 	struct mt7915_dev *dev = file->private;
 	bool ext_phy = phy != &dev->phy;
 	int bound[15], range[4], i, n;

 	if (!phy)
 		return;

 	/* Tx ampdu stat */
 	for (i = 0; i < ARRAY_SIZE(range); i++)
 		range[i] = mt76_rr(dev, MT_MIB_ARNG(ext_phy, i));

 	for (i = 0; i < ARRAY_SIZE(bound); i++)
 		bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i) + 1;

 	seq_printf(file, "\nPhy %d\n", ext_phy);

 	seq_printf(file, "Length: %8d | ", bound[0]);
 	for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
 		seq_printf(file, "%3d -%3d | ",
 			   bound[i] + 1, bound[i + 1]);

 	seq_puts(file, "\nCount:  ");
 	n = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;
 	for (i = 0; i < ARRAY_SIZE(bound); i++)
 		seq_printf(file, "%8d | ", dev->mt76.aggr_stats[i + n]);
 	seq_puts(file, "\n");

 	seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
 }

 static void
 mt7915_txbf_stat_read_phy(struct mt7915_phy *phy, struct seq_file *s)
 {
 	struct mt7915_dev *dev = s->private;
 	bool ext_phy = phy != &dev->phy;
 	int cnt;

 	if (!phy)
 		return;

 	/* Tx Beamformer monitor */
 	seq_puts(s, "\nTx Beamformer applied PPDU counts: ");

 	cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));
 	seq_printf(s, "iBF: %ld, eBF: %ld\n",
 		   FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt),
 		   FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt));

 	/* Tx Beamformer Rx feedback monitor */
 	seq_puts(s, "Tx Beamformer Rx feedback statistics: ");

 	cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));
 	seq_printf(s, "All: %ld, HE: %ld, VHT: %ld, HT: %ld\n",
 		   FIELD_GET(MT_ETBF_RX_FB_ALL, cnt),
 		   FIELD_GET(MT_ETBF_RX_FB_HE, cnt),
 		   FIELD_GET(MT_ETBF_RX_FB_VHT, cnt),
 		   FIELD_GET(MT_ETBF_RX_FB_HT, cnt));

 	/* Tx Beamformee Rx NDPA & Tx feedback report */
 	cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
 	seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
 		   FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
 	seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
 		   FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));

 	/* Tx SU & MU counters */
 	cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));
 	seq_printf(s, "Tx multi-user Beamforming counts: %ld\n",
 		   FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt));
 	cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));
 	seq_printf(s, "Tx multi-user MPDU counts: %d\n", cnt);
 	cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));
 	seq_printf(s, "Tx multi-user successful MPDU counts: %d\n", cnt);
 	cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
 	seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);

 	seq_puts(s, "\n");
 }

 static int
 mt7915_tx_stats_read(struct seq_file *file, void *data)
 {
 	struct mt7915_dev *dev = file->private;
 	int stat[8], i, n;

 	mt7915_ampdu_stat_read_phy(&dev->phy, file);
 	mt7915_txbf_stat_read_phy(&dev->phy, file);

 	mt7915_ampdu_stat_read_phy(mt7915_ext_phy(dev), file);
 	mt7915_txbf_stat_read_phy(mt7915_ext_phy(dev), file);

 	/* Tx amsdu info */
 	seq_puts(file, "Tx MSDU stat:\n");
 	for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
 		stat[i] = mt76_rr(dev,  MT_PLE_AMSDU_PACK_MSDU_CNT(i));
 		n += stat[i];
 	}

 	for (i = 0; i < ARRAY_SIZE(stat); i++) {
 		seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
 			   i + 1, stat[i]);
 		if (n != 0)
 			seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
 		else
 			seq_puts(file, "\n");
 	}

 	return 0;
 }

 static int
 mt7915_tx_stats_open(struct inode *inode, struct file *f)
 {
 	return single_open(f, mt7915_tx_stats_read, inode->i_private);
 }

 static const struct file_operations fops_tx_stats = {
 	.open = mt7915_tx_stats_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };

 static int mt7915_read_temperature(struct seq_file *s, void *data)
 {
 	struct mt7915_dev *dev = dev_get_drvdata(s->private);
 	int temp;

 	/* cpu */
 	temp = mt7915_mcu_get_temperature(dev, 0);
 	seq_printf(s, "Temperature: %d\n", temp);

 	return 0;
 }

 static int
 mt7915_queues_acq(struct seq_file *s, void *data)
 {
 	struct mt7915_dev *dev = dev_get_drvdata(s->private);
 	int i;

 	for (i = 0; i < 16; i++) {
 		int j, acs = i / 4, index = i % 4;
 		u32 ctrl, val, qlen = 0;

 		val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
 		ctrl = BIT(31) | BIT(15) | (acs << 8);

 		for (j = 0; j < 32; j++) {
 			if (val & BIT(j))
 				continue;

 			mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
 				ctrl | (j + (index << 5)));
 			qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
 					       GENMASK(11, 0));
 		}
 		seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
 	}

 	return 0;
 }

 static int
 mt7915_queues_read(struct seq_file *s, void *data)
 {
 	struct mt7915_dev *dev = dev_get_drvdata(s->private);
 	static const struct {
 		char *queue;
 		int id;
 	} queue_map[] = {
 		{ "WFDMA0", MT_TXQ_BE },
 		{ "MCUWM", MT_TXQ_MCU },
 		{ "MCUWA", MT_TXQ_MCU_WA },
 		{ "MCUFWQ", MT_TXQ_FWDL },
 	};
 	int i;

 	for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
 		struct mt76_queue *q = dev->mt76.q_tx[queue_map[i].id];

 		if (!q)
 			continue;

 		seq_printf(s,
 			   "%s:	queued=%d head=%d tail=%d\n",
 			   queue_map[i].queue, q->queued, q->head,
 			   q->tail);
 	}

 	return 0;
 }

 static void
 mt7915_puts_rate_txpower(struct seq_file *s, s8 *delta,
 			 s8 txpower_cur, int band)
 {
 	static const char * const sku_group_name[] = {
 		"CCK", "OFDM", "HT20", "HT40",
 		"VHT20", "VHT40", "VHT80", "VHT160",
 		"RU26", "RU52", "RU106", "RU242/SU20",
 		"RU484/SU40", "RU996/SU80", "RU2x996/SU160"
 	};
 	s8 txpower[MT7915_SKU_RATE_NUM];
 	int i, idx = 0;

 	for (i = 0; i < MT7915_SKU_RATE_NUM; i++)
 		txpower[i] = DIV_ROUND_UP(txpower_cur + delta[i], 2);

 	for (i = 0; i < MAX_SKU_RATE_GROUP_NUM; i++) {
 		const struct sku_group *sku = &mt7915_sku_groups[i];
 		u32 offset = sku->offset[band];

 		if (!offset) {
 			idx += sku->len;
 			continue;
 		}

 		mt76_seq_puts_array(s, sku_group_name[i],
 				    txpower + idx, sku->len);
 		idx += sku->len;
 	}
 }

 static int
 mt7915_read_rate_txpower(struct seq_file *s, void *data)
 {
 	struct mt7915_dev *dev = dev_get_drvdata(s->private);
 	struct mt76_phy *mphy = &dev->mphy;
 	enum nl80211_band band = mphy->chandef.chan->band;
 	s8 *delta = dev->rate_power[band];
 	s8 txpower_base = mphy->txpower_cur - delta[MT7915_SKU_MAX_DELTA_IDX];

 	seq_puts(s, "Band 0:\n");
 	mt7915_puts_rate_txpower(s, delta, txpower_base, band);

 	if (dev->mt76.phy2) {
 		mphy = dev->mt76.phy2;
 		band = mphy->chandef.chan->band;
 		delta = dev->rate_power[band];
 		txpower_base = mphy->txpower_cur -
 			       delta[MT7915_SKU_MAX_DELTA_IDX];

 		seq_puts(s, "Band 1:\n");
 		mt7915_puts_rate_txpower(s, delta, txpower_base, band);
 	}

 	return 0;
 }

 int mt7915_init_debugfs(struct mt7915_dev *dev)
 {
 	struct dentry *dir;

 	dir = mt76_register_debugfs(&dev->mt76);
 	if (!dir)
 		return -ENOMEM;

 	debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
 				    mt7915_queues_read);
 	debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
 				    mt7915_queues_acq);
 	debugfs_create_file("tx_stats", 0400, dir, dev, &fops_tx_stats);
 	debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
 	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
 	debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
 	/* test knobs */
 	debugfs_create_file("radar_trigger", 0200, dir, dev,
 			    &fops_radar_trigger);
 	debugfs_create_file("ser_trigger", 0200, dir, dev, &fops_ser_trigger);
 	debugfs_create_devm_seqfile(dev->mt76.dev, "temperature", dir,
 				    mt7915_read_temperature);
 	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
 				    mt7915_read_rate_txpower);

 	return 0;
 }

 #ifdef CONFIG_MAC80211_DEBUGFS
 /** per-station debugfs **/

 /* usage: <tx mode> <ldpc> <stbc> <bw> <gi> <nss> <mcs> */
 static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
 {
 	struct ieee80211_sta *sta = data;
 	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;

 	return mt7915_mcu_set_fixed_rate(msta->vif->phy->dev, sta, rate);
 }

 DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
 			 mt7915_sta_fixed_rate_set, "%llx\n");

 static int
 mt7915_sta_stats_read(struct seq_file *s, void *data)
 {
 	struct ieee80211_sta *sta = s->private;
 	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
 	struct mt7915_sta_stats *stats = &msta->stats;
 	struct rate_info *rate = &stats->prob_rate;
 	static const char * const bw[] = {
 		"BW20", "BW5", "BW10", "BW40",
 		"BW80", "BW160", "BW_HE_RU"
 	};

 	if (!rate->legacy && !rate->flags)
 		return 0;

 	seq_puts(s, "Probing rate - ");
 	if (rate->flags & RATE_INFO_FLAGS_MCS)
 		seq_puts(s, "HT ");
 	else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
 		seq_puts(s, "VHT ");
 	else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
 		seq_puts(s, "HE ");
 	else
 		seq_printf(s, "Bitrate %d\n", rate->legacy);

 	if (rate->flags) {
 		seq_printf(s, "%s NSS%d MCS%d ",
 			   bw[rate->bw], rate->nss, rate->mcs);

 		if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
 			seq_puts(s, "SGI ");
 		else if (rate->he_gi)
 			seq_puts(s, "HE GI ");

 		if (rate->he_dcm)
 			seq_puts(s, "DCM ");
 	}

 	seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
 		   stats->per / 10, stats->per % 10);

 	return 0;
 }

 static int
 mt7915_sta_stats_open(struct inode *inode, struct file *f)
 {
 	return single_open(f, mt7915_sta_stats_read, inode->i_private);
 }

 static const struct file_operations fops_sta_stats = {
 	.open = mt7915_sta_stats_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };

 void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			    struct ieee80211_sta *sta, struct dentry *dir)
 {
 	debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
 	debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats);
 }
 #endif
	// SPDX-License-Identifier: ISC
	/* Copyright (C) 2020 MediaTek Inc. */

	#include "mt7915.h"
	#include "eeprom.h"

	/ global debugfs /

	/* test knob of system layer 1/2 error recovery */
	static int mt7915_ser_trigger_set(void *data, u64 val)
	{
	enum {
	SER_SET_RECOVER_L1 = 1,
	SER_SET_RECOVER_L2,
	SER_ENABLE = 2,
	SER_RECOVER
	};
	struct mt7915_dev *dev = data;
	int ret = 0;

	switch (val) {
	case SER_SET_RECOVER_L1:
	case SER_SET_RECOVER_L2:
	ret = mt7915_mcu_set_ser(dev, SER_ENABLE, BIT(val), 0);
	if (ret)
	return ret;

	return mt7915_mcu_set_ser(dev, SER_RECOVER, val, 0);
	default:
	break;
	}

	return ret;
	}

	DEFINE_DEBUGFS_ATTRIBUTE(fops_ser_trigger, NULL,
	mt7915_ser_trigger_set, "%lld\n");

	static int
	mt7915_radar_trigger(void *data, u64 val)
	{
	struct mt7915_dev *dev = data;

	return mt7915_mcu_rdd_cmd(dev, RDD_RADAR_EMULATE, 1, 0, 0);
	}

	DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
	mt7915_radar_trigger, "%lld\n");

	static int
	mt7915_dbdc_set(void *data, u64 val)
	{
	struct mt7915_dev *dev = data;

	if (val)
	mt7915_register_ext_phy(dev);
	else
	mt7915_unregister_ext_phy(dev);

	return 0;
	}

	static int
	mt7915_dbdc_get(void data, u64 val)
	{
	struct mt7915_dev *dev = data;

	*val = !!mt7915_ext_phy(dev);

	return 0;
	}

	DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7915_dbdc_get,
	mt7915_dbdc_set, "%lld\n");

	static int
	mt7915_fw_debug_set(void *data, u64 val)
	{
	struct mt7915_dev *dev = data;
	enum {
	DEBUG_TXCMD = 62,
	DEBUG_CMD_RPT_TX,
	DEBUG_CMD_RPT_TRIG,
	DEBUG_SPL,
	DEBUG_RPT_RX,
	} debug;

	dev->fw_debug = !!val;

	mt7915_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);

	for (debug = DEBUG_TXCMD; debug <= DEBUG_RPT_RX; debug++)
	mt7915_mcu_fw_dbg_ctrl(dev, debug, dev->fw_debug);

	return 0;
	}

	static int
	mt7915_fw_debug_get(void data, u64 val)
	{
	struct mt7915_dev *dev = data;

	*val = dev->fw_debug;

	return 0;
	}

	DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7915_fw_debug_get,
	mt7915_fw_debug_set, "%lld\n");

	static void
	mt7915_ampdu_stat_read_phy(struct mt7915_phy *phy,
	struct seq_file *file)
	{
	struct mt7915_dev *dev = file->private;
	bool ext_phy = phy != &dev->phy;
	int bound[15], range[4], i, n;

	if (!phy)
	return;

	/* Tx ampdu stat */
	for (i = 0; i < ARRAY_SIZE(range); i++)
	range[i] = mt76_rr(dev, MT_MIB_ARNG(ext_phy, i));

	for (i = 0; i < ARRAY_SIZE(bound); i++)
	bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i) + 1;

	seq_printf(file, "\nPhy %d\n", ext_phy);

	seq_printf(file, "Length: %8d \| ", bound[0]);
	for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
	seq_printf(file, "%3d -%3d \| ",
	bound[i] + 1, bound[i + 1]);

	seq_puts(file, "\nCount: ");
	n = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;
	for (i = 0; i < ARRAY_SIZE(bound); i++)
	seq_printf(file, "%8d \| ", dev->mt76.aggr_stats[i + n]);
	seq_puts(file, "\n");

	seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
	}

	static void
	mt7915_txbf_stat_read_phy(struct mt7915_phy phy, struct seq_file s)
	{
	struct mt7915_dev *dev = s->private;
	bool ext_phy = phy != &dev->phy;
	int cnt;

	if (!phy)
	return;

	/* Tx Beamformer monitor */
	seq_puts(s, "\nTx Beamformer applied PPDU counts: ");

	cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));
	seq_printf(s, "iBF: %ld, eBF: %ld\n",
	FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt),
	FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt));

	/* Tx Beamformer Rx feedback monitor */
	seq_puts(s, "Tx Beamformer Rx feedback statistics: ");

	cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));
	seq_printf(s, "All: %ld, HE: %ld, VHT: %ld, HT: %ld\n",
	FIELD_GET(MT_ETBF_RX_FB_ALL, cnt),
	FIELD_GET(MT_ETBF_RX_FB_HE, cnt),
	FIELD_GET(MT_ETBF_RX_FB_VHT, cnt),
	FIELD_GET(MT_ETBF_RX_FB_HT, cnt));

	/* Tx Beamformee Rx NDPA & Tx feedback report */
	cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
	seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
	FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
	seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
	FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));

	/* Tx SU & MU counters */
	cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));
	seq_printf(s, "Tx multi-user Beamforming counts: %ld\n",
	FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt));
	cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));
	seq_printf(s, "Tx multi-user MPDU counts: %d\n", cnt);
	cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));
	seq_printf(s, "Tx multi-user successful MPDU counts: %d\n", cnt);
	cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
	seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);

	seq_puts(s, "\n");
	}

	static int
	mt7915_tx_stats_read(struct seq_file file, void data)
	{
	struct mt7915_dev *dev = file->private;
	int stat[8], i, n;

	mt7915_ampdu_stat_read_phy(&dev->phy, file);
	mt7915_txbf_stat_read_phy(&dev->phy, file);

	mt7915_ampdu_stat_read_phy(mt7915_ext_phy(dev), file);
	mt7915_txbf_stat_read_phy(mt7915_ext_phy(dev), file);

	/* Tx amsdu info */
	seq_puts(file, "Tx MSDU stat:\n");
	for (i = 0, n = 0; i < ARRAY_SIZE(stat); i++) {
	stat[i] = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
	n += stat[i];
	}

	for (i = 0; i < ARRAY_SIZE(stat); i++) {
	seq_printf(file, "AMSDU pack count of %d MSDU in TXD: 0x%x ",
	i + 1, stat[i]);
	if (n != 0)
	seq_printf(file, "(%d%%)\n", stat[i] * 100 / n);
	else
	seq_puts(file, "\n");
	}

	return 0;
	}

	static int
	mt7915_tx_stats_open(struct inode inode, struct file f)
	{
	return single_open(f, mt7915_tx_stats_read, inode->i_private);
	}

	static const struct file_operations fops_tx_stats = {
	.open = mt7915_tx_stats_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	};

	static int mt7915_read_temperature(struct seq_file s, void data)
	{
	struct mt7915_dev *dev = dev_get_drvdata(s->private);
	int temp;

	/* cpu */
	temp = mt7915_mcu_get_temperature(dev, 0);
	seq_printf(s, "Temperature: %d\n", temp);

	return 0;
	}

	static int
	mt7915_queues_acq(struct seq_file s, void data)
	{
	struct mt7915_dev *dev = dev_get_drvdata(s->private);
	int i;

	for (i = 0; i < 16; i++) {
	int j, acs = i / 4, index = i % 4;
	u32 ctrl, val, qlen = 0;

	val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
	ctrl = BIT(31) \| BIT(15) \| (acs << 8);

	for (j = 0; j < 32; j++) {
	if (val & BIT(j))
	continue;

	mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
	ctrl \| (j + (index << 5)));
	qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
	GENMASK(11, 0));
	}
	seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
	}

	return 0;
	}

	static int
	mt7915_queues_read(struct seq_file s, void data)
	{
	struct mt7915_dev *dev = dev_get_drvdata(s->private);
	static const struct {
	char *queue;
	int id;
	} queue_map[] = {
	{ "WFDMA0", MT_TXQ_BE },
	{ "MCUWM", MT_TXQ_MCU },
	{ "MCUWA", MT_TXQ_MCU_WA },
	{ "MCUFWQ", MT_TXQ_FWDL },
	};
	int i;

	for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
	struct mt76_queue *q = dev->mt76.q_tx[queue_map[i].id];

	if (!q)
	continue;

	seq_printf(s,
	"%s: queued=%d head=%d tail=%d\n",
	queue_map[i].queue, q->queued, q->head,
	q->tail);
	}

	return 0;
	}

	static void
	mt7915_puts_rate_txpower(struct seq_file s, s8 delta,
	s8 txpower_cur, int band)
	{
	static const char * const sku_group_name[] = {
	"CCK", "OFDM", "HT20", "HT40",
	"VHT20", "VHT40", "VHT80", "VHT160",
	"RU26", "RU52", "RU106", "RU242/SU20",
	"RU484/SU40", "RU996/SU80", "RU2x996/SU160"
	};
	s8 txpower[MT7915_SKU_RATE_NUM];
	int i, idx = 0;

	for (i = 0; i < MT7915_SKU_RATE_NUM; i++)
	txpower[i] = DIV_ROUND_UP(txpower_cur + delta[i], 2);

	for (i = 0; i < MAX_SKU_RATE_GROUP_NUM; i++) {
	const struct sku_group *sku = &mt7915_sku_groups[i];
	u32 offset = sku->offset[band];

	if (!offset) {
	idx += sku->len;
	continue;
	}

	mt76_seq_puts_array(s, sku_group_name[i],
	txpower + idx, sku->len);
	idx += sku->len;
	}
	}

	static int
	mt7915_read_rate_txpower(struct seq_file s, void data)
	{
	struct mt7915_dev *dev = dev_get_drvdata(s->private);
	struct mt76_phy *mphy = &dev->mphy;
	enum nl80211_band band = mphy->chandef.chan->band;
	s8 *delta = dev->rate_power[band];
	s8 txpower_base = mphy->txpower_cur - delta[MT7915_SKU_MAX_DELTA_IDX];

	seq_puts(s, "Band 0:\n");
	mt7915_puts_rate_txpower(s, delta, txpower_base, band);

	if (dev->mt76.phy2) {
	mphy = dev->mt76.phy2;
	band = mphy->chandef.chan->band;
	delta = dev->rate_power[band];
	txpower_base = mphy->txpower_cur -
	delta[MT7915_SKU_MAX_DELTA_IDX];

	seq_puts(s, "Band 1:\n");
	mt7915_puts_rate_txpower(s, delta, txpower_base, band);
	}

	return 0;
	}

	int mt7915_init_debugfs(struct mt7915_dev *dev)
	{
	struct dentry *dir;

	dir = mt76_register_debugfs(&dev->mt76);
	if (!dir)
	return -ENOMEM;

	debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
	mt7915_queues_read);
	debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
	mt7915_queues_acq);
	debugfs_create_file("tx_stats", 0400, dir, dev, &fops_tx_stats);
	debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
	debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
	/* test knobs */
	debugfs_create_file("radar_trigger", 0200, dir, dev,
	&fops_radar_trigger);
	debugfs_create_file("ser_trigger", 0200, dir, dev, &fops_ser_trigger);
	debugfs_create_devm_seqfile(dev->mt76.dev, "temperature", dir,
	mt7915_read_temperature);
	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,
	mt7915_read_rate_txpower);

	return 0;
	}

	#ifdef CONFIG_MAC80211_DEBUGFS
	/ per-station debugfs /

	/* usage: <tx mode> <ldpc> <stbc> <bw> <gi> <nss> <mcs> */
	static int mt7915_sta_fixed_rate_set(void *data, u64 rate)
	{
	struct ieee80211_sta *sta = data;
	struct mt7915_sta msta = (struct mt7915_sta )sta->drv_priv;

	return mt7915_mcu_set_fixed_rate(msta->vif->phy->dev, sta, rate);
	}

	DEFINE_DEBUGFS_ATTRIBUTE(fops_fixed_rate, NULL,
	mt7915_sta_fixed_rate_set, "%llx\n");

	static int
	mt7915_sta_stats_read(struct seq_file s, void data)
	{
	struct ieee80211_sta *sta = s->private;
	struct mt7915_sta msta = (struct mt7915_sta )sta->drv_priv;
	struct mt7915_sta_stats *stats = &msta->stats;
	struct rate_info *rate = &stats->prob_rate;
	static const char * const bw[] = {
	"BW20", "BW5", "BW10", "BW40",
	"BW80", "BW160", "BW_HE_RU"
	};

	if (!rate->legacy && !rate->flags)
	return 0;

	seq_puts(s, "Probing rate - ");
	if (rate->flags & RATE_INFO_FLAGS_MCS)
	seq_puts(s, "HT ");
	else if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
	seq_puts(s, "VHT ");
	else if (rate->flags & RATE_INFO_FLAGS_HE_MCS)
	seq_puts(s, "HE ");
	else
	seq_printf(s, "Bitrate %d\n", rate->legacy);

	if (rate->flags) {
	seq_printf(s, "%s NSS%d MCS%d ",
	bw[rate->bw], rate->nss, rate->mcs);

	if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
	seq_puts(s, "SGI ");
	else if (rate->he_gi)
	seq_puts(s, "HE GI ");

	if (rate->he_dcm)
	seq_puts(s, "DCM ");
	}

	seq_printf(s, "\nPPDU PER: %ld.%1ld%%\n",
	stats->per / 10, stats->per % 10);

	return 0;
	}

	static int
	mt7915_sta_stats_open(struct inode inode, struct file f)
	{
	return single_open(f, mt7915_sta_stats_read, inode->i_private);
	}

	static const struct file_operations fops_sta_stats = {
	.open = mt7915_sta_stats_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	};

	void mt7915_sta_add_debugfs(struct ieee80211_hw hw, struct ieee80211_vif vif,
	struct ieee80211_sta sta, struct dentry dir)
	{
	debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
	debugfs_create_file("stats", 0400, dir, sta, &fops_sta_stats);
	}
	#endif