steering-wheel-stm/Core/Src/user_inputs.c

119 lines
2.8 KiB
C

#include "user_inputs.h"
#include "events.h"
#include "main.h"
#include "state.h"
#include "vehicle.h"
#include "stm32g4xx_hal.h"
#include "stm32g4xx_hal_gpio.h"
#include <stdint.h>
#define MIN_PRESS_INTERVAL 100
void HAL_GPIO_EXTI_Callback(uint16_t pin) {
static uint32_t last_presses[4] = {0, 0, 0, 0};
Event ev;
GPIO_PinState state = HAL_GPIO_ReadPin(GPIOB, pin);
ev.type = state;
uint32_t now = HAL_GetTick();
switch (pin) {
case BTN0_Pin: {
if (now - last_presses[0] < MIN_PRESS_INTERVAL) {
return;
}
last_presses[0] = now;
ev.type = EV_BTN_PRESS;
ev.btn_press = BTN_PRESS_PREV;
break;
}
case BTN1_Pin: {
if (now - last_presses[1] < MIN_PRESS_INTERVAL) {
return;
}
last_presses[1] = now;
ev.type = EV_BTN_PRESS;
ev.btn_press = BTN_PRESS_R2D;
break;
}
case BTN2_Pin: {
if (now - last_presses[2] < MIN_PRESS_INTERVAL) {
return;
}
last_presses[2] = now;
ev.type = EV_BTN_PRESS;
ev.btn_press = BTN_PRESS_OK;
break;
}
case BTN3_Pin: {
if (now - last_presses[3] < MIN_PRESS_INTERVAL) {
return;
}
last_presses[3] = now;
ev.type = EV_BTN_PRESS;
ev.btn_press = BTN_PRESS_NEXT;
break;
}
default:
Error_Handler();
}
event_push(&ev);
}
void handle_button_press(const ButtonPressEvent* ev) {
switch (stw_state.view) {
case VIEW_MISSION_SELECT:
handle_button_press_mission_select(ev);
break;
case VIEW_AMI:
break;
default:
Error_Handler();
}
}
void handle_button_press_mission_select(const ButtonPressEvent* ev) {
switch (*ev) {
case BTN_PRESS_PREV: {
Mission* selection = &stw_state.view_state.mission_select.selection;
if (*selection == MISSION_ACCELERATION || *selection == MISSION_NONE) {
*selection = MISSION_MANUAL;
} else {
*selection = *selection - 1;
}
break;
}
case BTN_PRESS_R2D:
break;
case BTN_PRESS_OK:
vehicle_send_mission_select(stw_state.view_state.mission_select.selection);
break;
case BTN_PRESS_NEXT: {
Mission* selection = &stw_state.view_state.mission_select.selection;
if (*selection == MISSION_MANUAL) {
*selection = MISSION_ACCELERATION;
} else {
*selection = *selection + 1;
}
break;
}
}
}
ButtonsState get_buttons_state() {
ButtonsState result;
result.left = HAL_GPIO_ReadPin(BTN0_GPIO_Port, BTN0_Pin);
result.right = HAL_GPIO_ReadPin(BTN3_GPIO_Port, BTN3_Pin);
result.r2d = HAL_GPIO_ReadPin(BTN1_GPIO_Port, BTN1_Pin);
result.enter = HAL_GPIO_ReadPin(BTN2_GPIO_Port, BTN2_Pin);
result.enc0a = HAL_GPIO_ReadPin(ENC0A_GPIO_Port, ENC0A_Pin);
result.enc0b = HAL_GPIO_ReadPin(ENC0B_GPIO_Port, ENC0B_Pin);
result.enc1a = HAL_GPIO_ReadPin(ENC1A_GPIO_Port, ENC1A_Pin);
result.enc1b = HAL_GPIO_ReadPin(ENC1B_GPIO_Port, ENC1B_Pin);
return result;
}