/* os shim includes */
#include "os_types.h"
#include "dbg_io.h"
#include "iot_io.h"
#include "gpio_mtx.h"
#include "pwm.h"



uint8_t pwm_gpio_sel(uint8_t port, uint8_t pwma, uint8_t pwmb)
{
    gpio_mtx_enable();
    volatile uint8_t pwma_func = 0;
    volatile uint8_t pwmb_func = 0;
    pwma_func = gpio_pin_func_get(pwma);
    pwmb_func = gpio_pin_func_get(pwmb);
    gpio_sig_info_t info = {0};
    if (port == PWM_CHANNEL_0) {
        info.sig_type = 4;
        info.CFG[0].type = IO_TYPE_OUT;
        info.CFG[0].func = pwma_func;
        info.CFG[0].gpio = pwma;
        info.CFG[0].inid = 0xff;
        info.CFG[0].outid = 71;
        info.CFG[1].type = IO_TYPE_OUT;
        info.CFG[1].func = pwmb_func;
        info.CFG[1].gpio = pwmb;
        info.CFG[1].inid = 0xff;
        info.CFG[1].outid = 72;
    } else if (port == PWM_CHANNEL_1){
        info.sig_type = 4;
        info.CFG[0].type = IO_TYPE_OUT;
        info.CFG[0].func = pwma_func;
        info.CFG[0].gpio = pwma;
        info.CFG[0].inid = 0xff;
        info.CFG[0].outid = 73;
        info.CFG[1].type = IO_TYPE_OUT;
        info.CFG[1].func = pwmb_func;
        info.CFG[1].gpio = pwmb;
        info.CFG[1].inid = 0xff;
        info.CFG[1].outid = 74;
    }else if (port == PWM_CHANNEL_2){
        info.sig_type = 4;
        info.CFG[0].type = IO_TYPE_OUT;
        info.CFG[0].func = pwma_func;
        info.CFG[0].gpio = pwma;
        info.CFG[0].inid = 0xff;
        info.CFG[0].outid = 75;
        info.CFG[1].type = IO_TYPE_OUT;
        info.CFG[1].func = pwmb_func;
        info.CFG[1].gpio = pwmb;
        info.CFG[1].inid = 0xff;
        info.CFG[1].outid = 76;
    }

    gpio_module_pin_select(&info);
    gpio_module_sig_select(&info, GPIO_MTX_MODE_MATRIX);
    return 0;
}


void pwm_main(void)
{
    volatile uint32_t delay =0;
    uint8_t duty = 0;

    dbg_uart_init();

    pwm_gpio_sel( 0, 37, 38);
    pwm_init();
    pwm_open(0, NULL);

    while(1)
    {
        for(duty = 0; duty <= 100; duty += 5)
        {
            pwm_set_duty(PWM_CHANNEL_0, duty * 100);
            iot_printf("PWM Duty: %d%%\r\n",duty);
            delay = 10000000;
            while(delay--);
        }

        for(duty = 100; duty > 0; duty -= 5)
        {
            pwm_set_duty(PWM_CHANNEL_1, duty * 100);
            iot_printf("PWM Duty: %d%%\r\n",duty);
            delay = 10000000;
            while(delay--);
        }
    }
}

#ifdef __GNUC__

int main(void) {
    pwm_main();
    return 0;
}
#endif // __GCC__