pulse_reader: add call to set GPIO pull direction

firmware/targets/f7/api_symbols.csv

@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,11.3,,
+Version,+,11.4,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -563,8 +563,8 @@ Function,+,ble_glue_wait_for_c2_start,_Bool,int32_t
 Function,-,bsearch,void*,"const void*, const void*, size_t, size_t, __compar_fn_t"
 Function,+,bt_disconnect,void,Bt*
 Function,+,bt_forget_bonded_devices,void,Bt*
-Function,+,bt_keys_storage_set_storage_path,void,"Bt*, const char*"
 Function,+,bt_keys_storage_set_default_path,void,Bt*
+Function,+,bt_keys_storage_set_storage_path,void,"Bt*, const char*"
 Function,+,bt_set_profile,_Bool,"Bt*, BtProfile"
 Function,+,bt_set_status_changed_callback,void,"Bt*, BtStatusChangedCallback, void*"
 Function,+,buffered_file_stream_alloc,Stream*,Storage*
@@ -2104,6 +2104,7 @@ Function,-,pulse_reader_free,void,PulseReader*
 Function,-,pulse_reader_receive,uint32_t,"PulseReader*, int"
 Function,-,pulse_reader_samples,uint32_t,PulseReader*
 Function,-,pulse_reader_set_bittime,void,"PulseReader*, uint32_t"
+Function,-,pulse_reader_set_pull,void,"PulseReader*, GpioPull"
 Function,-,pulse_reader_set_timebase,void,"PulseReader*, PulseReaderUnit"
 Function,-,pulse_reader_start,void,PulseReader*
 Function,-,pulse_reader_stop,void,PulseReader*

lib/pulse_reader/pulse_reader.c

@@ -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

@@ -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