IR RX simple app (#218)

* split falling and rising ir rx events
* fix irda
* simple irda rx function for app
* add extern timer
* fix timer num for f2

applications/irda/irda.c

@@ -7,12 +7,13 @@
 typedef enum {
     EventTypeTick,
     EventTypeKey,
-    EventTypeLed,
+    EventTypeRX,
 } EventType;
 
 typedef struct {
     union {
         InputEvent input;
+        bool rx_edge;
     } value;
     EventType type;
 } AppEvent;
@@ -227,8 +228,11 @@ static void input_callback(InputEvent* input_event, void* ctx) {
     osMessageQueuePut(event_queue, &event, 0, 0);
 }
 
+osMessageQueueId_t irda_event_queue;
+
 void irda(void* p) {
-    osMessageQueueId_t event_queue = osMessageQueueNew(1, sizeof(AppEvent), NULL);
+    osMessageQueueId_t event_queue = osMessageQueueNew(32, sizeof(AppEvent), NULL);
+    irda_event_queue = event_queue;
 
     State _state;
     uint8_t mode_count = sizeof(modes) / sizeof(modes[0]);
@@ -259,6 +263,19 @@ void irda(void* p) {
     }
     gui->add_widget(gui, widget, GuiLayerFullscreen);
 
+    // Red LED
+    // create pin
+    GpioPin led = led_gpio[0];
+
+    // TODO open record
+    GpioPin* led_record = &led;
+
+    // configure pin
+    gpio_init(led_record, GpioModeOutputOpenDrain);
+
+    // setup irda rx timer
+    tim_irda_rx_init();
+
     AppEvent event;
     while(1) {
         osStatus_t event_status = osMessageQueueGet(event_queue, &event, NULL, osWaitForever);
@@ -287,7 +304,10 @@ void irda(void* p) {
                 }
 
                 modes[state->mode_id].input(&event, state);
+            } else if(event.type == EventTypeRX) {
+                gpio_write(led_record, event.value.rx_edge);
             }
+
         } else {
             // event timeout
         }
@@ -296,3 +316,22 @@ void irda(void* p) {
         widget_update(widget);
     }
 }
+
+void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef* htim) {
+    if(htim->Instance == TIM2) {
+        if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1) {
+            // falling event
+            AppEvent event;
+            event.type = EventTypeRX;
+            event.value.rx_edge = false;
+            osMessageQueuePut(irda_event_queue, &event, 0, 0);
+        } else if(htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2) {
+            // rising event
+            //uint32_t period_in_us = HAL_TIM_ReadCapturedValue();
+            AppEvent event;
+            event.type = EventTypeRX;
+            event.value.rx_edge = true;
+            osMessageQueuePut(irda_event_queue, &event, 0, 0);
+        }
+    }
+}

firmware/targets/f2/Inc/main.h

@@ -146,8 +146,8 @@ extern TIM_HandleTypeDef htim15;
 #define LFRFID_TIM htim15
 #define LFRFID_CH TIM_CHANNEL_1
 
-#define IRDA_TIM htim2
+#define IRDA_TX_TIM htim2
-#define IRDA_CH TIM_CHANNEL_4
+#define IRDA_TX_CH TIM_CHANNEL_3
 
 #define NFC_IRQ_Pin RFID_PULL_Pin
 #define NFC_IRQ_GPIO_Port RFID_PULL_GPIO_Port

firmware/targets/f2/api-hal/api-hal-pwm.c

@@ -43,9 +43,9 @@ void hal_pwmn_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
 }
 
 void irda_pwm_set(float value, float freq){
-    hal_pwm_set(value, freq, &IRDA_TIM, IRDA_CH);
+    hal_pwm_set(value, freq, &IRDA_TX_TIM, IRDA_TX_CH);
 }
 
 void irda_pwm_stop(){
-    hal_pwm_stop(&IRDA_TIM, IRDA_CH);
+    hal_pwm_stop(&IRDA_TX_TIM, IRDA_TX_CH);
 }

firmware/targets/f2/api-hal/api-hal-tim.c

@@ -0,0 +1,5 @@
+#include "cmsis_os.h"
+#include "api-hal-tim.h"
+
+void tim_irda_rx_init(void) {
+}

firmware/targets/f2/api-hal/api-hal-tim.h

@@ -0,0 +1,4 @@
+#pragma once
+#include "main.h"
+
+void tim_irda_rx_init(void);

firmware/targets/f2/api-hal/api-hal.h

@@ -4,3 +4,4 @@
 #include "api-hal-delay.h"
 #include "api-hal-pwm.h"
 #include "api-hal-task.h"
+#include "api-hal-tim.h"

firmware/targets/f3/Inc/main.h

@@ -173,8 +173,15 @@ extern TIM_HandleTypeDef htim16;
 #define LFRFID_TIM htim1
 #define LFRFID_CH TIM_CHANNEL_1
 
-#define IRDA_TIM htim1
+#define IRDA_TX_TIM htim1
-#define IRDA_CH TIM_CHANNEL_3
+#define IRDA_TX_CH TIM_CHANNEL_3
+
+// only for reference
+// IRDA RX timer dont exist in F2
+// and timer need more data to init (NVIC IRQn to set priority)
+#define IRDA_RX_TIM htim2
+#define IRDA_RX_FALLING_CH TIM_CHANNEL_1
+#define IRDA_RX_RISING_CH TIM_CHANNEL_2
 
 #define NFC_IRQ_Pin RFID_PULL_Pin
 #define NFC_IRQ_GPIO_Port RFID_PULL_GPIO_Port

firmware/targets/f3/api-hal/api-hal-pwm.c

@@ -49,9 +49,9 @@ void hal_pwmn_stop(TIM_HandleTypeDef* tim, uint32_t channel) {
 }
 
 void irda_pwm_set(float value, float freq){
-    hal_pwmn_set(value, freq, &IRDA_TIM, IRDA_CH);
+    hal_pwmn_set(value, freq, &IRDA_TX_TIM, IRDA_TX_CH);
 }
 
 void irda_pwm_stop(){
-    hal_pwmn_stop(&IRDA_TIM, IRDA_CH);
+    hal_pwmn_stop(&IRDA_TX_TIM, IRDA_TX_CH);
 }

firmware/targets/f3/api-hal/api-hal-tim.c

@@ -0,0 +1,8 @@
+#include "cmsis_os.h"
+#include "api-hal-tim.h"
+
+void tim_irda_rx_init(void) {
+    HAL_NVIC_SetPriority(TIM2_IRQn, 5, 0);
+    HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_1);
+    HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_2);
+}

firmware/targets/f3/api-hal/api-hal-tim.h

@@ -0,0 +1,4 @@
+#pragma once
+#include "main.h"
+
+void tim_irda_rx_init(void);

firmware/targets/f3/api-hal/api-hal.h

@@ -4,3 +4,4 @@
 #include "api-hal-delay.h"
 #include "api-hal-pwm.h"
 #include "api-hal-task.h"
+#include "api-hal-tim.h"