feat(mp-ble): Allow to set the interval

epicardium/ble/ble_adv.c

@@ -15,12 +15,17 @@
 #include <stdio.h>
 #include <string.h>
 
+#define DEFAULT_ADV_INTERVAL_US 500000
+
 /*! configurable parameters for advertising */
-static const appAdvCfg_t bleAdvCfg = {
-	{ 0, 0 },          /*! Advertising durations in ms */
-	{ 500 / 0.625, 0 } /*! Advertising intervals in 0.625 ms units */
+static appAdvCfg_t bleAdvCfg = {
+	{ 0, 0 }, /*! Advertising durations in ms */
+	{ DEFAULT_ADV_INTERVAL_US / 625,
+	  0 } /*! Advertising intervals in 0.625 ms units */
 };
 
+static bool tainted;
+
 /**************************************************************************************************
   Advertising Data
 **************************************************************************************************/
@@ -191,6 +196,14 @@ void ble_adv_setup(void)
 		(uint8_t *)bleAdvDataConn
 	);
 	AppAdvSetData(APP_SCAN_DATA_CONNECTABLE, 0, NULL);
+
+	bleAdvCfg.advInterval[0] = DEFAULT_ADV_INTERVAL_US / 625;
+}
+
+void ble_adv_set_interval(uint32_t interval_us)
+{
+	bleAdvCfg.advInterval[0] = interval_us / 625;
+	tainted                  = true;
 }
 
 void ble_adv_stop(void)

epicardium/ble/ble_api.h

@@ -51,6 +51,7 @@ void ble_epic_dm_api_event(dmEvt_t *dm_event);
 
 void ble_adv_init(void);
 void ble_adv_setup(void);
+void ble_adv_set_interval(uint32_t interval_ms);
 void ble_adv_stop(void);
 void ble_adv_start(uint8_t mode);
 void ble_adv_discoverable(bool discoverable);

epicardium/ble/epic_ble_api.c

@@ -137,6 +137,8 @@ int epic_ble_advertise(
 	memcpy(adv_data_buf, adv_data, adv_data_len);
 	memcpy(sr_data_buf, sr_data, sr_data_len);
 
+	ble_adv_set_interval(interval_us);
+
 	if (connectable) {
 		AppAdvSetData(
 			APP_ADV_DATA_CONNECTABLE, adv_data_len, adv_data_buf