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pulse_reader: add call to set GPIO pull direction

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This commit is contained in:
g3gg0.de
2022-12-28 14:40:29 +01:00
committed by Tiernan Messmer
parent 67b02b7785
commit f08c8d6a1d
3 changed files with 18 additions and 1 deletions
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lib/pulse_reader/pulse_reader.c
+6 -1
View File
@@ -31,6 +31,7 @@ PulseReader* pulse_reader_alloc(const GpioPin* gpio, uint32_t size) {
signal->gpio_buffer = malloc(size * sizeof(uint32_t));
signal->dma_channel = LL_DMA_CHANNEL_4;
signal->gpio = gpio;
signal->pull = GpioPullNo;
signal->size = size;
signal->timer_value = 0;
signal->pos = 0;
@@ -88,6 +89,10 @@ void pulse_reader_set_bittime(PulseReader* signal, uint32_t bit_time) {
signal->bit_time = bit_time;
}
void pulse_reader_set_pull(PulseReader* signal, GpioPull pull) {
signal->pull = pull;
}
void pulse_reader_free(PulseReader* signal) {
free(signal->timer_buffer);
free(signal->gpio_buffer);
@@ -134,7 +139,7 @@ void pulse_reader_start(PulseReader* signal) {
/* we need the EXTI to be configured as interrupt generating line, but no ISR registered */
furi_hal_gpio_init_ex(
signal->gpio, GpioModeInterruptRiseFall, GpioPullNo, GpioSpeedVeryHigh, GpioAltFnUnused);
signal->gpio, GpioModeInterruptRiseFall, signal->pull, GpioSpeedVeryHigh, GpioAltFnUnused);
/* capture current timer */
signal->pos = 0;
lib/pulse_reader/pulse_reader.h
+11
View File
@@ -41,6 +41,7 @@ typedef struct {
uint32_t bit_time;
uint32_t dma_channel;
const GpioPin* gpio;
GpioPull pull;
LL_DMA_InitTypeDef dma_config_timer;
LL_DMA_InitTypeDef dma_config_gpio;
} PulseReader;
@@ -125,6 +126,16 @@ void pulse_reader_set_timebase(PulseReader* signal, PulseReaderUnit unit);
*/
void pulse_reader_set_bittime(PulseReader* signal, uint32_t bit_time);
/** Set GPIO pull direction
*
* Some GPIOs need pulldown, others don't. By default the
* pull direction is GpioPullNo.
*
* @param[in] signal previously allocated PulseReader object.
* @param[in] pull GPIO pull direction
*/
void pulse_reader_set_pull(PulseReader* signal, GpioPull pull);
#ifdef __cplusplus
}
#endif