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[PATCH v5 3/7] hw/misc/led: Emit a trace event when LED intensity has ch
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v5 3/7] hw/misc/led: Emit a trace event when LED intensity has changed |
Date: |
Thu, 10 Sep 2020 22:54:25 +0200 |
Track the LED intensity, and emit a trace event when it changes.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
hw/misc/led.c | 4 ++++
hw/misc/trace-events | 1 +
2 files changed, 5 insertions(+)
diff --git a/hw/misc/led.c b/hw/misc/led.c
index 3ef4f5e0469..ebe1fa45b1e 100644
--- a/hw/misc/led.c
+++ b/hw/misc/led.c
@@ -41,6 +41,10 @@ void led_set_intensity(LEDState *s, unsigned
intensity_percent)
intensity_percent = LED_INTENSITY_PERCENT_MAX;
}
trace_led_set_intensity(s->description, s->color, intensity_percent);
+ if (intensity_percent != s->intensity_percent) {
+ trace_led_change_intensity(s->description, s->color,
+ s->intensity_percent, intensity_percent);
+ }
s->intensity_percent = intensity_percent;
}
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index 76c9ddb54fe..89d15f05f9a 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -216,6 +216,7 @@ grlib_apb_pnp_read(uint64_t addr, uint32_t value) "APB PnP
read addr:0x%03"PRIx6
# led.c
led_set_intensity(const char *color, const char *desc, uint8_t
intensity_percent) "LED desc:'%s' color:%s intensity: %u%%"
+led_change_intensity(const char *color, const char *desc, uint8_t
old_intensity_percent, uint8_t new_intensity_percent) "LED desc:'%s' color:%s
intensity %u%% -> %u%%"
# pca9552.c
pca955x_gpio_status(const char *description, const char *buf) "%s GPIOs 0-15
[%s]"
--
2.26.2