Commit ea29acc9 authored by Sean Wang's avatar Sean Wang Committed by Felix Fietkau
Browse files

mt76: mt7921: add dumping Tx power table 



Dump the tx power table saved in offload firmware.

Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 18369a4f

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

+1 −0
Original line number Diff line number Diff line
@@ -564,6 +564,7 @@ enum { 
	MCU_CMD_CHIP_CONFIG = MCU_CE_PREFIX | 0xca,

	MCU_CMD_FWLOG_2_HOST = MCU_CE_PREFIX | 0xc5,

	MCU_CMD_GET_WTBL = MCU_CE_PREFIX | 0xcd,

	MCU_CMD_GET_TXPWR = MCU_CE_PREFIX | 0xd0,

};



enum {

drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c

+79 −0
Original line number Diff line number Diff line
@@ -146,6 +146,83 @@ mt7921_queues_read(struct seq_file *s, void *data) 
	return 0;

}



static void

mt7921_seq_puts_array(struct seq_file *file, const char *str,

		      s8 *val, int len)

{

	int i;



	seq_printf(file, "%-16s:", str);

	for (i = 0; i < len; i++)

		if (val[i] == 127)

			seq_printf(file, " %6s", "N.A");

		else

			seq_printf(file, " %6d", val[i]);

	seq_puts(file, "\n");

}



#define mt7921_print_txpwr_entry(prefix, rate)				\

({									\

	mt7921_seq_puts_array(s, #prefix " (user)",			\

			      txpwr.data[TXPWR_USER].rate,		\

			      ARRAY_SIZE(txpwr.data[TXPWR_USER].rate)); \

	mt7921_seq_puts_array(s, #prefix " (eeprom)",			\

			      txpwr.data[TXPWR_EEPROM].rate,		\

			      ARRAY_SIZE(txpwr.data[TXPWR_EEPROM].rate)); \

	mt7921_seq_puts_array(s, #prefix " (tmac)",			\

			      txpwr.data[TXPWR_MAC].rate,		\

			      ARRAY_SIZE(txpwr.data[TXPWR_MAC].rate));	\

})



static int

mt7921_txpwr(struct seq_file *s, void *data)

{

	struct mt7921_dev *dev = dev_get_drvdata(s->private);

	struct mt7921_txpwr txpwr;

	int ret;



	ret = mt7921_get_txpwr_info(dev, &txpwr);

	if (ret)

		return ret;



	seq_printf(s, "Tx power table (channel %d)\n", txpwr.ch);

	seq_printf(s, "%-16s  %6s %6s %6s %6s\n",

		   " ", "1m", "2m", "5m", "11m");

	mt7921_print_txpwr_entry(CCK, cck);



	seq_printf(s, "%-16s  %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "6m", "9m", "12m", "18m", "24m", "36m",

		   "48m", "54m");

	mt7921_print_txpwr_entry(OFDM, ofdm);



	seq_printf(s, "%-16s  %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7");

	mt7921_print_txpwr_entry(HT20, ht20);



	seq_printf(s, "%-16s  %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7", "mcs32");

	mt7921_print_txpwr_entry(HT40, ht40);



	seq_printf(s, "%-16s  %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s %6s\n",

		   " ", "mcs0", "mcs1", "mcs2", "mcs3", "mcs4", "mcs5",

		   "mcs6", "mcs7", "mcs8", "mcs9", "mcs10", "mcs11");

	mt7921_print_txpwr_entry(VHT20, vht20);

	mt7921_print_txpwr_entry(VHT40, vht40);

	mt7921_print_txpwr_entry(VHT80, vht80);

	mt7921_print_txpwr_entry(VHT160, vht160);

	mt7921_print_txpwr_entry(HE26, he26);

	mt7921_print_txpwr_entry(HE52, he52);

	mt7921_print_txpwr_entry(HE106, he106);

	mt7921_print_txpwr_entry(HE242, he242);

	mt7921_print_txpwr_entry(HE484, he484);

	mt7921_print_txpwr_entry(HE996, he996);

	mt7921_print_txpwr_entry(HE996x2, he996x2);



	return 0;

}



static int

mt7921_pm_set(void *data, u64 val)

{
@@ -225,6 +302,8 @@ int mt7921_init_debugfs(struct mt7921_dev *dev) 
				    mt7921_queues_read);

	debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,

				    mt7921_queues_acq);

	debugfs_create_devm_seqfile(dev->mt76.dev, "txpower_sku", dir,

				    mt7921_txpwr);

	debugfs_create_file("tx_stats", 0400, dir, dev, &mt7921_tx_stats_fops);

	debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);

	debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm);

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

+23 −0
Original line number Diff line number Diff line
@@ -1382,3 +1382,26 @@ int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw, 
	return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD_OFFLOAD,

				     true);

}



int mt7921_get_txpwr_info(struct mt7921_dev *dev, struct mt7921_txpwr *txpwr)

{

	struct mt7921_txpwr_event *event;

	struct mt7921_txpwr_req req = {

		.dbdc_idx = 0,

	};

	struct sk_buff *skb;

	int ret;



	ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CMD_GET_TXPWR,

					&req, sizeof(req), true, &skb);

	if (ret)

		return ret;



	event = (struct mt7921_txpwr_event *)skb->data;

	WARN_ON(skb->len != le16_to_cpu(event->len));

	memcpy(txpwr, &event->txpwr, sizeof(event->txpwr));



	dev_kfree_skb(skb);



	return 0;

}

drivers/net/wireless/mediatek/mt76/mt7921/mcu.h

+17 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ enum { 
	MCU_EVENT_CH_PRIVILEGE = 0x18,

	MCU_EVENT_SCHED_SCAN_DONE = 0x23,

	MCU_EVENT_DBG_MSG = 0x27,

	MCU_EVENT_TXPWR = 0xd0,

	MCU_EVENT_COREDUMP = 0xf0,

};
@@ -390,4 +391,20 @@ struct mt7921_mcu_wlan_info { 
	__le32 wlan_idx;

	struct mt7921_mcu_wlan_info_event event;

} __packed;



struct mt7921_txpwr_req {

	u8 ver;

	u8 action;

	__le16 len;

	u8 dbdc_idx;

	u8 rsv[3];

} __packed;



struct mt7921_txpwr_event {

	u8 ver;

	u8 action;

	__le16 len;

	struct mt7921_txpwr txpwr;

} __packed;



#endif

drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h

+31 −0
Original line number Diff line number Diff line
@@ -172,6 +172,36 @@ struct mt7921_dev { 
	struct mt76_connac_coredump coredump;

};



enum {

	TXPWR_USER,

	TXPWR_EEPROM,

	TXPWR_MAC,

	TXPWR_MAX_NUM,

};



struct mt7921_txpwr {

	u8 ch;

	u8 rsv[3];

	struct {

		u8 ch;

		u8 cck[4];

		u8 ofdm[8];

		u8 ht20[8];

		u8 ht40[9];

		u8 vht20[12];

		u8 vht40[12];

		u8 vht80[12];

		u8 vht160[12];

		u8 he26[12];

		u8 he52[12];

		u8 he106[12];

		u8 he242[12];

		u8 he484[12];

		u8 he996[12];

		u8 he996x2[12];

	} data[TXPWR_MAX_NUM];

};



enum {

	MT_LMAC_AC00,

	MT_LMAC_AC01,
@@ -352,4 +382,5 @@ int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw, 
				 struct ieee80211_vif *vif,

				 struct ieee80211_bss_conf *info);

int mt7921_wfsys_reset(struct mt7921_dev *dev);

int mt7921_get_txpwr_info(struct mt7921_dev *dev, struct mt7921_txpwr *txpwr);

#endif