/**
 * @copyright 2017 Indie Semiconductor.
 *
 * This file is proprietary to Indie Semiconductor.
 * All rights reserved. Reproduction or distribution, in whole
 * or in part, is forbidden except by express written permission
 * of Indie Semiconductor.
 *
 * @file gpio_device.c
 * @Author: Jack.Pan
 * @E-mail:jack.pan@indiemicro.com
 * @Date: 2020/09/10
 */

#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <gpio_device.h>
#include <isrfuncs.h>

#ifdef GPIO_SFRS
static gpio_cb_func_t gpioCallback[3][8]= {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                                           NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                                           NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,};
void GPIO_Handler(void)
{
    for (uint8_t i = (uint8_t)GPIO_PORT_0; i<= (uint8_t)GPIO_PORT_7; i++ ){
        if (GPIO_SFRS->GPIOA[i].ACTDET == 1U){
            if (gpioCallback[GROUP_GPIOA][i] !=NULL){
                gpioCallback[GROUP_GPIOA][i]();
            }
            GPIO_SFRS->GPIOA[i].CLR = 1U;
        }
        if (GPIO_SFRS->GPIOB[i].ACTDET == 1U){
            if (gpioCallback[GROUP_GPIOB][i] !=NULL){
                gpioCallback[GROUP_GPIOB][i]();
            }
            GPIO_SFRS->GPIOB[i].CLR = 1U;
        }
        if (GPIO_SFRS->GPIOC[i].ACTDET == 1U){
            if (gpioCallback[GROUP_GPIOC][i] !=NULL){
                gpioCallback[GROUP_GPIOC][i]();
            }
            GPIO_SFRS->GPIOC[i].CLR = 1U;
        }
    }
}

void GPIO_Init(GpioGroup_t group,GpioPort_t port, GpioDir_t dir,GpioPullMode_t pullMode)
{
    IOCTRLA_SFRS->PORT_GROUP_MUX[group] &= ~(0x0FUL << (4U*(uint8_t)port));
    
    if (pullMode == GPIO_PULL_NONE){
        IOCTRLA_SFRS->CTRL_MODE[group].PU &= ~(1U << (uint8_t)port);
        IOCTRLA_SFRS->CTRL_MODE[group].PD &= ~(1U << (uint8_t)port);
    }else if (pullMode == GPIO_PULL_UP){
        IOCTRLA_SFRS->CTRL_MODE[group].PU |=  (1 << (uint8_t)port);
        IOCTRLA_SFRS->CTRL_MODE[group].PD &= ~(1 << (uint8_t)port);
    }else if (pullMode == GPIO_PULL_DOWN){
        IOCTRLA_SFRS->CTRL_MODE[group].PU &= ~(1 << (uint8_t)port);
        IOCTRLA_SFRS->CTRL_MODE[group].PD |=  (1 << (uint8_t)port);
    }else{
        IOCTRLA_SFRS->CTRL_MODE[group].PU |=  (1 << (uint8_t)port);
        IOCTRLA_SFRS->CTRL_MODE[group].PD |=  (1 << (uint8_t)port);
    }

    IOCTRLA_SFRS->CTRL_MODE[group].RE |= (1 << (uint8_t)port);

    if (group == GROUP_GPIOA){
        GPIO_SFRS->GPIOA[port].DIR = dir;
    }else if(group == GROUP_GPIOB){
        GPIO_SFRS->GPIOB[port].DIR = dir;
    }else{
        GPIO_SFRS->GPIOC[port].DIR = dir;
    }
    
}


void GPIO_RegisterIRQ(GpioGroup_t group,GpioPort_t port, GpioISREdge_t edge, gpio_cb_func_t callback)
{
    gpioCallback[(uint8_t)group][(uint8_t)port] = callback;
    if (group == GROUP_GPIOA){
        GPIO_SFRS->GPIOA[(uint8_t)port].EDGE = (uint8_t)edge;
        GPIO_SFRS->GPIOA[(uint8_t)port].CLR = 1U;
        GPIO_SFRS->GPIOA[(uint8_t)port].IE = 1U;
    }else if (group == GROUP_GPIOB){
        GPIO_SFRS->GPIOB[(uint8_t)port].EDGE = (uint8_t)edge;
        GPIO_SFRS->GPIOB[(uint8_t)port].CLR = 1U;
        GPIO_SFRS->GPIOB[(uint8_t)port].IE = 1U;
    }else{
        GPIO_SFRS->GPIOC[(uint8_t)port].EDGE = (uint8_t)edge;
        GPIO_SFRS->GPIOC[(uint8_t)port].CLR = 1U;
        GPIO_SFRS->GPIOC[(uint8_t)port].IE = 1U;
    }
    NVIC_EnableIRQ(GPIO_IRQn);  
}

void GPIO_UnRegisterIRQ(GpioGroup_t group,GpioPort_t port)
{
    gpioCallback[(uint8_t)group][(uint8_t)port] = NULL;
}

void GPIO_Set(GpioGroup_t group,GpioPort_t port, GpioSetState_t state)
{
    if (state == GPIO_LOW){
        GPIO_SFRS->GPIO_SET[group].DATACLR =  1U << (uint8_t)port;
    }else{
        GPIO_SFRS->GPIO_SET[group].DATASET =  1U << (uint8_t)port;
    }
     
}

uint8_t GPIO_Read(GpioGroup_t group,GpioPort_t port)
{
    uint8_t data = GPIO_SFRS->GPIO_SET[group].DATA &(1U << (uint8_t)port);
    return (uint8_t)(data != 0U);
}

#endif