/********************************** (C) COPYRIGHT *******************************
 * File Name          : ch32v20x_it.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2023/12/29
 * Description        : Main Interrupt Service Routines.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/

#include <stdint.h>
#include <ch32v20x.h>

#include "ch32v20x_it.h"

#include "src/adc.h"
#include "src/btn.h"
#include "src/led.h"
#include "src/ui.h"


void NMI_Handler(void); //__attribute__((interrupt("WCH-Interrupt-fast")));
void HardFault_Handler(void); //__attribute__((interrupt("WCH-Interrupt-fast")));
void SysTick_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));


/*********************************************************************
 * @fn      NMI_Handler
 *
 * @brief   This function handles NMI exception.
 *
 * @return  none
 */
void NMI_Handler(void)
{
    while (1);
}

/*********************************************************************
 * @fn      HardFault_Handler
 *
 * @brief   This function handles Hard Fault exception.
 *
 * @return  none
 */
void HardFault_Handler(void)
{
    while (1);
}


volatile uint16_t ticnt;
volatile uint32_t uptime;

void SysTick_Handler(void)
{
    if (++ticnt > 0x3ff) {
        ticnt = 0;
        uptime++;
    }

    // light sensor updates at ~1ms
    adc_process_lsens();

    // general processes update at 1/128 duty
    switch (ticnt & 0x7) {
        case 0: {   // send new LEDs
            led_boeing_update();
            led_matrix_send();
            break;
        }
        case 1: {   // process buttons
            btn_poll();
            break;
        }
    }

    // clear comparison flag
    SysTick->SR = 0;

    return;
}

// accelerometer interrupt handler
void EXTI15_10_IRQHandler(void)
{
    // now what the fuck triggered this shit
    // oh right something on the accelerometer. but what though?
}