feat(modules): Add timed vibrate function

epicardium/epicardium.h

@@ -11,6 +11,7 @@
 #define API_UART_READ          0x2
 #define API_LEDS_SET           0x3
 #define API_VIBRA_SET          0x4
+#define API_VIBRA_VIBRATE      0x5
 /* clang-format on */
 
 /**
@@ -66,4 +67,11 @@ API(API_LEDS_SET, void epic_leds_set(int led, uint8_t r, uint8_t g, uint8_t b));
  */
 API(API_VIBRA_SET, void epic_vibra_set(int status));
 
+/**
+ * Turn vibration motor on for a given time
+ *
+ * :param millis: number of milliseconds to run the vibration motor.
+ */
+API(API_VIBRA_VIBRATE, void epic_vibra_vibrate(int millis));
+
 #endif /* _EPICARDIUM_H */

epicardium/modules/vibra.c

 #include "gpio.h"
+#include "FreeRTOS.h"
+#include "timers.h"
 
 static const gpio_cfg_t motor_pin = {
 	PORT_0, PIN_8, GPIO_FUNC_OUT, GPIO_PAD_NONE
 };
 
+static TimerHandle_t vibra_timer;
+
 void epic_vibra_set(int status)
 {
 	if (status) {
@@ -12,3 +16,17 @@ void epic_vibra_set(int status)
 		GPIO_OutClr(&motor_pin);
 	}
 }
+
+void vTimerCallback()
+{
+	epic_vibra_set(0);
+}
+
+void epic_vibra_vibrate(int millis)
+{
+	int ticks = millis * (configTICK_RATE_HZ / 1000);
+	epic_vibra_set(1);
+	vibra_timer =
+		xTimerCreate("vibratimer", ticks, pdFALSE, 0, vTimerCallback);
+	xTimerStart(vibra_timer, 0);
+}

pycardium/modules/qstrdefs.h

@@ -23,4 +23,5 @@ Q(ticks_add)
 Q(ticks_diff)
 
 /* vibra */
-Q(vibra)
\ No newline at end of file
+Q(vibra)
+Q(vibrate)

pycardium/modules/vibra.c

@@ -16,9 +16,18 @@ STATIC mp_obj_t mp_vibra_set(mp_obj_t state_obj)
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(vibra_set_obj, mp_vibra_set);
 
+STATIC mp_obj_t mp_vibra_vibrate(mp_obj_t a_obj)
+{
+    int millis = mp_obj_get_int(a_obj);
+    epic_vibra_vibrate(millis);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(vibra_vibrate_obj, mp_vibra_vibrate);
+
 STATIC const mp_rom_map_elem_t vibra_module_globals_table[] = {
 	{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_vibra) },
 	{ MP_ROM_QSTR(MP_QSTR_set), MP_ROM_PTR(&vibra_set_obj) },
+    { MP_ROM_QSTR(MP_QSTR_vibrate), MP_ROM_PTR(&vibra_vibrate_obj) }
 };
 STATIC MP_DEFINE_CONST_DICT(vibra_module_globals, vibra_module_globals_table);