diff options
Diffstat (limited to 'os/hal/platforms/STM32/pwm_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/pwm_lld.c | 100 |
1 files changed, 88 insertions, 12 deletions
diff --git a/os/hal/platforms/STM32/pwm_lld.c b/os/hal/platforms/STM32/pwm_lld.c index bb6dad8f2..85cef0553 100644 --- a/os/hal/platforms/STM32/pwm_lld.c +++ b/os/hal/platforms/STM32/pwm_lld.c @@ -31,18 +31,6 @@ #if HAL_USE_PWM || defined(__DOXYGEN__)
-/* There are differences in vector names in the ST header for devices
- including TIM15, TIM16, TIM17.*/
-#if STM32_HAS_TIM15
-#define TIM1_BRK_IRQn TIM1_BRK_TIM15_IRQn
-#endif
-#if STM32_HAS_TIM16
-#define TIM1_UP_IRQn TIM1_UP_TIM16_IRQn
-#endif
-#if STM32_HAS_TIM17
-#define TIM1_TRG_COM_IRQn TIM1_TRG_COM_TIM17_IRQn
-#endif
-
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
@@ -87,6 +75,14 @@ PWMDriver PWMD4; PWMDriver PWMD5;
#endif
+/**
+ * @brief PWMD8 driver identifier.
+ * @note The driver PWMD5 allocates the timer TIM5 when enabled.
+ */
+#if STM32_PWM_USE_TIM8 || defined(__DOXYGEN__)
+PWMDriver PWMD8;
+#endif
+
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
@@ -240,6 +236,53 @@ CH_IRQ_HANDLER(TIM5_IRQHandler) { }
#endif /* STM32_PWM_USE_TIM5 */
+#if STM32_PWM_USE_TIM8
+/**
+ * @brief TIM8 update interrupt handler.
+ * @note It is assumed that this interrupt is only activated if the callback
+ * pointer is not equal to @p NULL in order to not perform an extra
+ * check in a potentially critical interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(TIM8_UP_IRQHandler) {
+
+ CH_IRQ_PROLOGUE();
+
+ TIM8->SR = ~TIM_SR_UIF;
+ PWMD1.config->callback(&PWMD8);
+
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief TIM1 compare interrupt handler.
+ * @note It is assumed that the various sources are only activated if the
+ * associated callback pointer is not equal to @p NULL in order to not
+ * perform an extra check in a potentially critical interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(TIM8_CC_IRQHandler) {
+ uint16_t sr;
+
+ CH_IRQ_PROLOGUE();
+
+ sr = TIM8->SR & TIM8->DIER;
+ TIM8->SR = ~(TIM_SR_CC1IF | TIM_SR_CC2IF | TIM_SR_CC3IF | TIM_SR_CC4IF);
+ if ((sr & TIM_SR_CC1IF) != 0)
+ PWMD8.config->channels[0].callback(&PWMD8);
+ if ((sr & TIM_SR_CC2IF) != 0)
+ PWMD8.config->channels[1].callback(&PWMD8);
+ if ((sr & TIM_SR_CC3IF) != 0)
+ PWMD8.config->channels[2].callback(&PWMD8);
+ if ((sr & TIM_SR_CC4IF) != 0)
+ PWMD8.config->channels[3].callback(&PWMD8);
+
+ CH_IRQ_EPILOGUE();
+}
+#endif /* STM32_PWM_USE_TIM8 */
+
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
@@ -280,6 +323,12 @@ void pwm_lld_init(void) { pwmObjectInit(&PWMD5);
PWMD5.tim = TIM5;
#endif
+
+#if STM32_PWM_USE_TIM8
+ /* Driver initialization.*/
+ pwmObjectInit(&PWMD8);
+ PWMD5.tim = TIM8;
+#endif
}
/**
@@ -350,6 +399,18 @@ void pwm_lld_start(PWMDriver *pwmp) { clock = STM32_TIMCLK1;
}
#endif
+#if STM32_PWM_USE_TIM8
+ if (&PWMD8 == pwmp) {
+ RCC->APB2ENR |= RCC_APB2ENR_TIM8EN;
+ RCC->APB2RSTR = RCC_APB2RSTR_TIM8RST;
+ RCC->APB2RSTR = 0;
+ NVICEnableVector(TIM8_UP_IRQn,
+ CORTEX_PRIORITY_MASK(STM32_PWM_TIM8_IRQ_PRIORITY));
+ NVICEnableVector(TIM8_CC_IRQn,
+ CORTEX_PRIORITY_MASK(STM32_PWM_TIM8_IRQ_PRIORITY));
+ clock = STM32_TIMCLK2;
+ }
+#endif
/* All channels configured in PWM1 mode with preload enabled and will
stay that way until the driver is stopped.*/
@@ -418,7 +479,15 @@ void pwm_lld_start(PWMDriver *pwmp) { ;
}
#if STM32_PWM_USE_ADVANCED
+#if STM32_PWM_USE_TIM1 && !STM32_PWM_USE_TIM8
if (&PWMD1 == pwmp) {
+#endif
+#if !STM32_PWM_USE_TIM1 && STM32_PWM_USE_TIM8
+ if (&PWMD8 == pwmp) {
+#endif
+#if STM32_PWM_USE_TIM1 && STM32_PWM_USE_TIM8
+ if ((&PWMD1 == pwmp) || (&PWMD8 == pwmp)) {
+#endif
switch (pwmp->config->channels[0].mode & PWM_COMPLEMENTARY_OUTPUT_MASK) {
case PWM_COMPLEMENTARY_OUTPUT_ACTIVE_LOW:
ccer |= TIM_CCER_CC1NP;
@@ -506,6 +575,13 @@ void pwm_lld_stop(PWMDriver *pwmp) { RCC->APB1ENR &= ~RCC_APB1ENR_TIM5EN;
}
#endif
+#if STM32_PWM_USE_TIM8
+ if (&PWMD8 == pwmp) {
+ NVICDisableVector(TIM8_UP_IRQn);
+ NVICDisableVector(TIM8_CC_IRQn);
+ RCC->APB2ENR &= ~RCC_APB2ENR_TIM8EN;
+ }
+#endif
}
}
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