Commit 2afd17b4 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Felix Fietkau
Browse files

mt76: mt7921: introduce MCU_EVENT_LP_INFO event parsing 



Report trace event related to MCU_EVENT_LP_INFO that is sent by the mcu
when it is ready to enter in deep sleep state

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 66978204

drivers/net/wireless/mediatek/mt76/mt7921/Makefile

+3 −1
Original line number Diff line number Diff line
@@ -2,4 +2,6 @@ 


obj-$(CONFIG_MT7921E) += mt7921e.o



mt7921e-y := pci.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o
 
CFLAGS_trace.o := -I$(src)



mt7921e-y := pci.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o trace.o

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

+19 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include <linux/firmware.h>

#include <linux/fs.h>

#include "mt7921.h"

#include "mt7921_trace.h"

#include "mcu.h"

#include "mac.h"
@@ -498,6 +499,20 @@ mt7921_mcu_debug_msg_event(struct mt7921_dev *dev, struct sk_buff *skb) 
	}

}



static void

mt7921_mcu_low_power_event(struct mt7921_dev *dev, struct sk_buff *skb)

{

	struct mt7921_mcu_lp_event {

		u8 state;

		u8 reserved[3];

	} __packed * event;



	skb_pull(skb, sizeof(struct mt7921_mcu_rxd));

	event = (struct mt7921_mcu_lp_event *)skb->data;



	trace_lp_event(dev, event->state);

}



static void

mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)

{
@@ -521,6 +536,9 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) 
		mt76_connac_mcu_coredump_event(&dev->mt76, skb,

					       &dev->coredump);

		return;

	case MCU_EVENT_LP_INFO:

		mt7921_mcu_low_power_event(dev, skb);

		break;

	default:

		break;

	}
@@ -543,6 +561,7 @@ void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) 
	    rxd->eid == MCU_EVENT_SCAN_DONE ||

	    rxd->eid == MCU_EVENT_DBG_MSG ||

	    rxd->eid == MCU_EVENT_COREDUMP ||

	    rxd->eid == MCU_EVENT_LP_INFO ||

	    !rxd->seq)

		mt7921_mcu_rx_unsolicited_event(dev, skb);

	else

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

+1 −0
Original line number Diff line number Diff line
@@ -79,6 +79,7 @@ struct mt7921_uni_txd { 
/* event table */

enum {

	MCU_EVENT_REG_ACCESS = 0x05,

	MCU_EVENT_LP_INFO = 0x07,

	MCU_EVENT_SCAN_DONE = 0x0d,

	MCU_EVENT_BSS_ABSENCE  = 0x11,

	MCU_EVENT_BSS_BEACON_LOSS = 0x13,

drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h

0 → 100644
+51 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: ISC */

/*

 * Copyright (C) 2021 Lorenzo Bianconi <lorenzo@kernel.org>

 */



#if !defined(__MT7921_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)

#define __MT7921_TRACE_H



#include <linux/tracepoint.h>

#include "mt7921.h"



#undef TRACE_SYSTEM

#define TRACE_SYSTEM mt7921



#define MAXNAME		32

#define DEV_ENTRY	__array(char, wiphy_name, 32)

#define DEV_ASSIGN	strlcpy(__entry->wiphy_name,	\

				wiphy_name(mt76_hw(dev)->wiphy), MAXNAME)

#define DEV_PR_FMT	"%s"

#define DEV_PR_ARG	__entry->wiphy_name

#define LP_STATE_PR_ARG	__entry->lp_state ? "lp ready" : "lp not ready"



TRACE_EVENT(lp_event,

	TP_PROTO(struct mt7921_dev *dev, u8 lp_state),



	TP_ARGS(dev, lp_state),



	TP_STRUCT__entry(

		DEV_ENTRY

		__field(u8, lp_state)

	),



	TP_fast_assign(

		DEV_ASSIGN;

		__entry->lp_state = lp_state;

	),



	TP_printk(

		DEV_PR_FMT " %s",

		DEV_PR_ARG, LP_STATE_PR_ARG

	)

);



#endif



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_FILE mt7921_trace



#include <trace/define_trace.h>

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

0 → 100644
+12 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: ISC

/*

 * Copyright (C) 2021 Lorenzo Bianconi <lorenzo@kernel.org>

 */



#include <linux/module.h>



#ifndef __CHECKER__

#define CREATE_TRACE_POINTS

#include "mt7921_trace.h"



#endif