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authorAlistair Francis <alistair23@gmail.com>2016-10-04 13:28:07 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-10-04 13:28:07 +0100
commitcbcb93e802076ecea9b3defe609ce4a45719e809 (patch)
tree252733337f684c4f6c94a9a7af29f0e030cc7d1b /hw/timer
parent81fed1d017d9460ac39e9ba775fcbe8bd90b1847 (diff)
STM32F2xx: Display PWM duty cycle from timer
If correctly configured allow the STM32F2xx timer to print out the PWM duty cycle information. Signed-off-by: Alistair Francis <alistair@alistair23.me> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: cdb59039a25e061615713a94b40797baa12ea9f9.1474742262.git.alistair@alistair23.me Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/timer')
-rw-r--r--hw/timer/stm32f2xx_timer.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/timer/stm32f2xx_timer.c b/hw/timer/stm32f2xx_timer.c
index bf0fb288c4..8c4c1f9f05 100644
--- a/hw/timer/stm32f2xx_timer.c
+++ b/hw/timer/stm32f2xx_timer.c
@@ -51,6 +51,15 @@ static void stm32f2xx_timer_interrupt(void *opaque)
qemu_irq_pulse(s->irq);
stm32f2xx_timer_set_alarm(s, s->hit_time);
}
+
+ if (s->tim_ccmr1 & (TIM_CCMR1_OC2M2 | TIM_CCMR1_OC2M1) &&
+ !(s->tim_ccmr1 & TIM_CCMR1_OC2M0) &&
+ s->tim_ccmr1 & TIM_CCMR1_OC2PE &&
+ s->tim_ccer & TIM_CCER_CC2E) {
+ /* PWM 2 - Mode 1 */
+ DB_PRINT("PWM2 Duty Cycle: %d%%\n",
+ s->tim_ccr2 / (100 * (s->tim_psc + 1)));
+ }
}
static inline int64_t stm32f2xx_ns_to_ticks(STM32F2XXTimerState *s, int64_t t)