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-rw-r--r--tmk_core/common/chibios/sleep_led.c88
1 files changed, 33 insertions, 55 deletions
diff --git a/tmk_core/common/chibios/sleep_led.c b/tmk_core/common/chibios/sleep_led.c
index 5595eec0e5..477056a454 100644
--- a/tmk_core/common/chibios/sleep_led.c
+++ b/tmk_core/common/chibios/sleep_led.c
@@ -9,21 +9,13 @@
* Use LP timer on Kinetises, TIM14 on STM32F0.
*/
-#if defined(KL2x) || defined(K20x)
-
-/* Use Low Power Timer (LPTMR) */
-# define TIMER_INTERRUPT_VECTOR KINETIS_LPTMR0_IRQ_VECTOR
-# define RESET_COUNTER LPTMR0->CSR |= LPTMRx_CSR_TCF
-
-#elif defined(STM32F0XX)
-
-/* Use TIM14 manually */
-# define TIMER_INTERRUPT_VECTOR STM32_TIM14_HANDLER
-# define RESET_COUNTER STM32_TIM14->SR &= ~STM32_TIM_SR_UIF
-
+#ifndef SLEEP_LED_GPT_DRIVER
+# if defined(STM32F0XX)
+# define SLEEP_LED_GPT_DRIVER GPTD14
+# endif
#endif
-#if defined(KL2x) || defined(K20x) || defined(STM32F0XX) /* common parts for timers/interrupts */
+#if defined(KL2x) || defined(K20x) || defined(SLEEP_LED_GPT_DRIVER) /* common parts for timers/interrupts */
/* Breathing Sleep LED brighness(PWM On period) table
* (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
@@ -33,10 +25,7 @@
*/
static const uint8_t breathing_table[64] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, 15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, 255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, 15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-/* interrupt handler */
-OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) {
- OSAL_IRQ_PROLOGUE();
-
+void sleep_led_timer_callback(void) {
/* Software PWM
* timer:1111 1111 1111 1111
* \_____/\/ \_______/____ count(0-255)
@@ -64,17 +53,16 @@ OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) {
if (timer.pwm.count == breathing_table[timer.pwm.index]) {
led_set(0);
}
-
- /* Reset the counter */
- RESET_COUNTER;
-
- OSAL_IRQ_EPILOGUE();
}
#endif /* common parts for known platforms */
#if defined(KL2x) || defined(K20x) /* platform selection: familiar Kinetis chips */
+/* Use Low Power Timer (LPTMR) */
+# define TIMER_INTERRUPT_VECTOR KINETIS_LPTMR0_IRQ_VECTOR
+# define RESET_COUNTER LPTMR0->CSR |= LPTMRx_CSR_TCF
+
/* LPTMR clock options */
# define LPTMR_CLOCK_MCGIRCLK 0 /* 4MHz clock */
# define LPTMR_CLOCK_LPO 1 /* 1kHz clock */
@@ -86,6 +74,18 @@ OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) {
# define SIM_SCGC5_LPTMR SIM_SCGC5_LPTIMER
# endif
+/* interrupt handler */
+OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) {
+ OSAL_IRQ_PROLOGUE();
+
+ sleep_led_timer_callback();
+
+ /* Reset the counter */
+ RESET_COUNTER;
+
+ OSAL_IRQ_EPILOGUE();
+}
+
/* Initialise the timer */
void sleep_led_init(void) {
/* Make sure the clock to the LPTMR is enabled */
@@ -159,45 +159,23 @@ void sleep_led_toggle(void) {
LPTMR0->CSR ^= LPTMRx_CSR_TEN;
}
-#elif defined(STM32F0XX) /* platform selection: STM32F0XX */
-
-/* Initialise the timer */
-void sleep_led_init(void) {
- /* enable clock */
- rccEnableTIM14(FALSE); /* low power enable = FALSE */
- rccResetTIM14();
-
- /* prescale */
- /* Assuming 48MHz internal clock */
- /* getting cca 65484 irqs/sec */
- STM32_TIM14->PSC = 733;
+#elif defined(SLEEP_LED_GPT_DRIVER)
- /* auto-reload */
- /* 0 => interrupt every time */
- STM32_TIM14->ARR = 3;
+static void gptTimerCallback(GPTDriver *gptp) {
+ (void)gptp;
+ sleep_led_timer_callback();
+}
- /* enable counter update event interrupt */
- STM32_TIM14->DIER |= STM32_TIM_DIER_UIE;
+static const GPTConfig gptcfg = {1000000, gptTimerCallback, 0, 0};
- /* register interrupt vector */
- nvicEnableVector(STM32_TIM14_NUMBER, 2); /* vector, priority */
-}
+/* Initialise the timer */
+void sleep_led_init(void) { gptStart(&SLEEP_LED_GPT_DRIVER, &gptcfg); }
-void sleep_led_enable(void) {
- /* Enable the timer */
- STM32_TIM14->CR1 = STM32_TIM_CR1_CEN | STM32_TIM_CR1_URS;
- /* URS => update event only on overflow; setting UG bit disabled */
-}
+void sleep_led_enable(void) { gptStartContinuous(&SLEEP_LED_GPT_DRIVER, gptcfg.frequency / 0xFFFF); }
-void sleep_led_disable(void) {
- /* Disable the timer */
- STM32_TIM14->CR1 = 0;
-}
+void sleep_led_disable(void) { gptStopTimer(&SLEEP_LED_GPT_DRIVER); }
-void sleep_led_toggle(void) {
- /* Toggle the timer */
- STM32_TIM14->CR1 ^= STM32_TIM_CR1_CEN;
-}
+void sleep_led_toggle(void) { (SLEEP_LED_GPT_DRIVER.state == GPT_READY) ? sleep_led_enable() : sleep_led_disable(); }
#else /* platform selection: not on familiar chips */