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: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
.../wireless/mediatek/mt76/mt76_connac_mcu.h | 1 +
.../wireless/mediatek/mt76/mt7921/Makefile | 4 +-
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 19 +++++++
.../mediatek/mt76/mt7921/mt7921_trace.h | 51 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/trace.c | 12 +++++
5 files changed, 86 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7921/trace.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index b209a76c1bac..d3c25f0984fd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -572,6 +572,7 @@ enum {
MCU_EVENT_ACCESS_REG = 0x02,
MCU_EVENT_MT_PATCH_SEM = 0x04,
MCU_EVENT_REG_ACCESS = 0x05,
+ MCU_EVENT_LP_INFO = 0x07,
MCU_EVENT_SCAN_DONE = 0x0d,
MCU_EVENT_ROC = 0x10,
MCU_EVENT_BSS_ABSENCE = 0x11,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
index 09d1446ad933..e531666f9fb4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile
@@ -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
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index e44ce9bdfa9d..c8e24ffa3f03 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -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"
@@ -509,6 +510,20 @@ 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)
{
@@ -535,6 +550,9 @@ 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;
}
@@ -557,6 +575,7 @@ 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->eid == MCU_EVENT_ROC ||
!rxd->seq)
mt7921_mcu_rx_unsolicited_event(dev, skb);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h
new file mode 100644
index 000000000000..9bc4db67f352
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: ISC */
+/*
+ * Copyright (C) 2021 Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ */
+
+#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>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/trace.c b/drivers/net/wireless/mediatek/mt76/mt7921/trace.c
new file mode 100644
index 000000000000..4dc3c7b89ebd
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/trace.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2021 Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ */
+
+#include <linux/module.h>
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "mt7921_trace.h"
+
+#endif
--
2.30.2
