/************************* (C) COPYRIGHT 2010 ROBOTIS **************************
* File Name          : main.c
* Author             : danceww
* Version            : V0.0.1
* Date               : 08/23/2010
* Description        : Main program body
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define PORT_SW_UP                                GPIOC
#define PORT_SW_DOWN                        GPIOC
#define PORT_SW_RIGHT                        GPIOA
#define PORT_SW_LEFT                        GPIOA
#define PORT_SW_START                        GPIOB

#define PORT_LED_AUX                        GPIOB
#define PORT_LED_MANAGE                        GPIOB
#define PORT_LED_PROGRAM                GPIOB
#define PORT_LED_PLAY                        GPIOB
#define PORT_LED_POWER                        GPIOC
#define PORT_LED_TX                                GPIOC
#define PORT_LED_RX                                GPIOC

#define PIN_SW_UP                                GPIO_Pin_11
#define PIN_SW_DOWN                                GPIO_Pin_10
#define PIN_SW_RIGHT                        GPIO_Pin_14
#define PIN_SW_LEFT                                GPIO_Pin_15
#define PIN_SW_START                        GPIO_Pin_3

#define PIN_LED_AUX                                GPIO_Pin_12
#define PIN_LED_MANAGE                        GPIO_Pin_13
#define PIN_LED_PROGRAM                        GPIO_Pin_14
#define PIN_LED_PLAY                        GPIO_Pin_15
#define PIN_LED_POWER                        GPIO_Pin_13
#define PIN_LED_TX                                GPIO_Pin_14
#define PIN_LED_RX                                GPIO_Pin_15

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void RCC_Configuration(void); //konfiguracja zegarów
void NVIC_Configuration(void); //obsluga przerwan
void GPIO_Configuration(void); //konfiguracja portow

/*******************************************************************************
* Function Name  : main
* Description    : Main program
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
        /* System Clocks Configuration */
        RCC_Configuration();

        /* NVIC configuration */
        GPIO_Configuration();

        /* Configure the GPIO ports */
        NVIC_Configuration();

        GPIO_ResetBits(PORT_LED_POWER, PIN_LED_POWER);

        while(1)
        {
                if( GPIO_ReadInputDataBit(PORT_SW_UP, PIN_SW_UP) != SET )
                        {
                        GPIO_ResetBits(GPIOB, PIN_LED_AUX);
                        GPIO_ResetBits(GPIOB, PIN_LED_MANAGE);
                        }
                else if( GPIO_ReadInputDataBit(PORT_SW_DOWN, PIN_SW_DOWN) != SET )
                        GPIO_ResetBits(GPIOB, PIN_LED_MANAGE);

                else if( GPIO_ReadInputDataBit(PORT_SW_LEFT, PIN_SW_LEFT) != SET )
                        GPIO_ResetBits(PORT_LED_PROGRAM, PIN_LED_PROGRAM);

                else if( GPIO_ReadInputDataBit(PORT_SW_RIGHT, PIN_SW_RIGHT) != SET )
                        GPIO_ResetBits(PORT_LED_PLAY, PIN_LED_PLAY);

                else if( GPIO_ReadInputDataBit(PORT_SW_START, PIN_SW_START) != SET )
                {
                        GPIO_ResetBits(PORT_LED_MANAGE, PIN_LED_MANAGE);
                        GPIO_ResetBits(PORT_LED_PROGRAM, PIN_LED_PROGRAM);
                        GPIO_ResetBits(PORT_LED_PLAY, PIN_LED_PLAY);
                        GPIO_ResetBits(PORT_LED_TX, PIN_LED_TX);
                        GPIO_ResetBits(PORT_LED_RX, PIN_LED_RX);
                        GPIO_ResetBits(PORT_LED_AUX, PIN_LED_AUX);
                }

                else
                {
                        GPIO_SetBits(PORT_LED_MANAGE, PIN_LED_MANAGE);
                        GPIO_SetBits(PORT_LED_PROGRAM, PIN_LED_PROGRAM);
                        GPIO_SetBits(PORT_LED_PLAY, PIN_LED_PLAY);
                        GPIO_SetBits(PORT_LED_TX, PIN_LED_TX);
                        GPIO_SetBits(PORT_LED_RX, PIN_LED_RX);
                        GPIO_SetBits(PORT_LED_AUX, PIN_LED_AUX);
                };
        }
        return 0;
}

void RCC_Configuration(void)
{
        ErrorStatus HSEStartUpStatus;
        /* RCC system reset(for debug purpose) */
        RCC_DeInit();

        /* Enable HSE */
        RCC_HSEConfig(RCC_HSE_ON);

        /* Wait till HSE is ready */
        HSEStartUpStatus = RCC_WaitForHSEStartUp();

        if(HSEStartUpStatus == SUCCESS)
        {
                /* Enable Prefetch Buffer */
                FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

                /* Flash 2 wait state */
                FLASH_SetLatency(FLASH_Latency_2);

                /* HCLK = SYSCLK */
                RCC_HCLKConfig(RCC_SYSCLK_Div1);

                /* PCLK2 = HCLK */
                RCC_PCLK2Config(RCC_HCLK_Div1);

                /* PCLK1 = HCLK/2 */
                RCC_PCLK1Config(RCC_HCLK_Div2);

                /* PLLCLK = 8MHz * 9 = 72 MHz */
                RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

                /* Enable PLL */
                RCC_PLLCmd(ENABLE);

                /* Wait till PLL is ready */
                while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
                {
                }

                /* Select PLL as system clock source */
                RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

                /* Wait till PLL is used as system clock source */
                while(RCC_GetSYSCLKSource() != 0x08)
                {
                }
        }

        /* Enable peripheral clocks --------------------------------------------------*/

        /* Enable GPIOA, GPIOB, and GPIOC clocks */
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);

        PWR_BackupAccessCmd(ENABLE);
}

/*******************************************************************************
* Function Name  : NVIC_Configuration
* Description    : Configures Vector Table base location.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void NVIC_Configuration(void)
{
    #ifdef  VECT_TAB_RAM
                // Set the Vector Table base location at 0x20000000
                NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
        #else  // VECT_TAB_FLASH
                // Set the Vector Table base location at 0x08003000
                NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x3000);
        #endif
}

/*******************************************************************************
* Function Name  : GPIO_Configuration
* Description    : Configures the different GPIO ports.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Configuration(void)
{
        GPIO_InitTypeDef GPIO_InitStructure;
        GPIO_StructInit(&GPIO_InitStructure);

        // PORTA CONFIG
        GPIO_InitStructure.GPIO_Pin =          PIN_SW_RIGHT | PIN_SW_LEFT;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
        GPIO_Init(GPIOA, &GPIO_InitStructure);

        // PORTB CONFIG
        GPIO_InitStructure.GPIO_Pin =          PIN_SW_START;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
        GPIO_Init(GPIOB, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin =          PIN_LED_AUX | PIN_LED_MANAGE | PIN_LED_PROGRAM | PIN_LED_PLAY;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
        GPIO_Init(GPIOB, &GPIO_InitStructure);

        // PORTC CONFIG
        GPIO_InitStructure.GPIO_Pin =          PIN_SW_UP | PIN_SW_DOWN;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
        GPIO_Init(GPIOC, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin =          PIN_LED_POWER | PIN_LED_TX | PIN_LED_RX;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
        GPIO_Init(GPIOC, &GPIO_InitStructure);
}