/*****************************************************************************
 * Copyright (c) 2019, Nsing Technologies Pte. Ltd.
 *
 * All rights reserved.
 * ****************************************************************************
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Nations' name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY NATIONS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL NATIONS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ****************************************************************************/

/**
 * @file hw_config.c
 * @author Nations
 * @version v1.0.1
 *
 * @copyright Copyright (c) 2019, Nsing Technologies Pte. Ltd. All rights reserved.
 */
#include "hw_config.h"
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_pwr.h"

ErrorStatus HSEStartUpStatus;
uint32_t ADC_ConvertedValueX = 0;
uint32_t ADC_ConvertedValueX_1 = 0;
__IO uint16_t ADC1ConvertedValue = 0, ADC1ConvertedVoltage = 0, calibration_value = 0;

/* Extern variables ----------------------------------------------------------*/
extern __IO uint8_t PrevXferComplete;

GPIO_Module *BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT, TAMPER_BUTTON_GPIO_PORT,
                                     KEY_BUTTON_GPIO_PORT, RIGHT_BUTTON_GPIO_PORT,
                                     LEFT_BUTTON_GPIO_PORT, UP_BUTTON_GPIO_PORT,
                                     DOWN_BUTTON_GPIO_PORT, SEL_BUTTON_GPIO_PORT};

const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN,
                                      KEY_BUTTON_PIN, RIGHT_BUTTON_PIN,
                                      LEFT_BUTTON_PIN, UP_BUTTON_PIN,
                                      DOWN_BUTTON_PIN, SEL_BUTTON_PIN};

const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_GPIO_CLK, TAMPER_BUTTON_GPIO_CLK,
                                      KEY_BUTTON_GPIO_CLK, RIGHT_BUTTON_GPIO_CLK,
                                      LEFT_BUTTON_GPIO_CLK, UP_BUTTON_GPIO_CLK,
                                      DOWN_BUTTON_GPIO_CLK, SEL_BUTTON_GPIO_CLK};

/**
 * @brief  Configures Main system clocks & power.
 */
void Set_System(void)
{
  GPIO_InitType GPIO_InitStructure;
  EXTI_InitType EXTI_InitStructure;

  /*Enable Joystick GPIOs clock*/
  RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOA, ENABLE);

  /*Configure the JoyStick IOs as input floating*/
  GPIO_InitStructure.Pin = RIGHT_BUTTON_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; /*PullUp is mandatory for Joystick pins*/
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitPeripheral(RIGHT_BUTTON_GPIO_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.Pin = LEFT_BUTTON_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; /*PullUp is mandatory for Joystick pins*/
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitPeripheral(LEFT_BUTTON_GPIO_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.Pin = UP_BUTTON_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; /*PullUp is mandatory for Joystick pins*/
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitPeripheral(UP_BUTTON_GPIO_PORT, &GPIO_InitStructure);

  GPIO_InitStructure.Pin = DOWN_BUTTON_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; /*PullUp is mandatory for Joystick pins*/
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitPeripheral(DOWN_BUTTON_GPIO_PORT, &GPIO_InitStructure);

  /* Configure the EXTI line 18 connected internally to the USB IP */
  EXTI_ClrITPendBit(EXTI_LINE18);
  EXTI_InitStructure.EXTI_Line = EXTI_LINE18;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_InitPeripheral(&EXTI_InitStructure);
}

/**
 * @brief  Configures USB Clock input (48MHz).
 */
void Set_USBClock(void)
{
  /* Select USBCLK source */
  RCC_ConfigUsbClk(RCC_USBCLK_SRC_PLLCLK_DIV3);
  /* Enable the USB clock */
  RCC_EnableAPB1PeriphClk(RCC_APB1_PERIPH_USB, ENABLE);
}

/**
 * @brief  Power-off system clocks and power while entering suspend mode.
 */
void Enter_LowPowerMode(void)
{
  /* Set the device state to suspend */
  bDeviceState = SUSPENDED;
}

/**
 * @brief  Restores system clocks and power while exiting suspend mode.
 */
void Leave_LowPowerMode(void)
{
  USB_DeviceMess *pInfo = &Device_Info;

  /* Set the device state to the correct state */
  if (pInfo->CurrentConfiguration != 0)
  {
    /* Device configured */
    bDeviceState = CONFIGURED;
  }
  else
  {
    bDeviceState = ATTACHED;
  }
}

/**
 * @brief  Configures the USB interrupts.
 */
void USB_Interrupts_Config(void)
{
  NVIC_InitType NVIC_InitStructure;

  /* 2 bit for pre-emption priority, 2 bits for subpriority */
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

  /* Enable the USB interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  /* Enable the USB Wake-up interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

///*******************************************************************************
//* Function Name  : USB_Cable_Config.
//* Description    : Software Connection/Disconnection of USB Cable.
//* Input          : Cmd: new state.
//* Output         : None.
//* Return         : None
//*******************************************************************************/
// void USB_Cable_Config (FunctionalState Cmd)
//{
//  if (Cmd != DISABLE)
//  {
//    GPIO_ResetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
//  }
//  else
//  {
//    GPIO_SetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
//  }
//}

///*******************************************************************************
//* Function Name  : GPIO_Configuration
//* Description    : Configures the different GPIO ports.
//* Input          : None
//* Output         : None
//* Return         : None
//*******************************************************************************/
// void GPIO_Configuration(void)
//{
//  GPIO_InitType GPIO_InitStructure;
//  RCC_EnableAPB2PeriphClk(RCC_APB2Periph_GPIO_DISCONNECT |
//                         RCC_APB2Periph_GPIO_IOAIN , ENABLE);
//  /* USB_DISCONNECT used as USB pull-up */
//  GPIO_InitStructure.Pin = USB_DISCONNECT_PIN;
//  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
//  GPIO_InitPeripheral(USB_DISCONNECT, &GPIO_InitStructure);
//  /* Configure Potentiometer IO as analog input */
//  GPIO_InitStructure.Pin = GPIO_IOAIN_PIN;
//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
//  GPIO_InitPeripheral(GPIO_IOAIN, &GPIO_InitStructure);
//}

/**
 * @brief  Returns the selected Button state.
 * @param  Button: Specifies the Button to be checked.
 *   This parameter can be one of following parameters:
 *     @arg BUTTON_WAKEUP: Wakeup Push Button
 *     @arg BUTTON_TAMPER: Tamper Push Button
 *     @arg BUTTON_KEY: Key Push Button
 *     @arg BUTTON_RIGHT: Joystick Right Push Button
 *     @arg BUTTON_LEFT: Joystick Left Push Button
 *     @arg BUTTON_UP: Joystick Up Push Button
 *     @arg BUTTON_DOWN: Joystick Down Push Button
 *     @arg BUTTON_SEL: Joystick Sel Push Button
 * @retval The Button GPIO pin value.
 */
uint32_t NATIONS_EVAL_PBGetState(Button_TypeDef Button)
{
  return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
}

/**
 * @brief  Decodes the Joystick direction.
 *         that failed. If expr is true, it returns no value.
 * @return The direction value
 */
uint8_t JoyState(void)
{
  /* "right" key is pressed */
  if (!NATIONS_EVAL_PBGetState(Button_RIGHT))
  {
    return JOY_RIGHT;
  }
  /* "left" key is pressed */
  if (!NATIONS_EVAL_PBGetState(Button_LEFT))
  {
    return JOY_LEFT;
  }
  /* "up" key is pressed */
  if (!NATIONS_EVAL_PBGetState(Button_UP))
  {
    return JOY_UP;
  }
  /* "down" key is pressed */
  if (!NATIONS_EVAL_PBGetState(Button_DOWN))
  {
    return JOY_DOWN;
  }
  /* No key is pressed */
  else
  {
    return 0;
  }
}

/**
 * @brief   prepares buffer to be sent containing Joystick event infos.
 * @param   Keys: keys received from terminal.
 */
void Joystick_Send(uint8_t Keys)
{
  uint8_t Mouse_Buffer[4] = {0, 0, 0, 0};
  int8_t X = 0, Y = 0;

  switch (Keys)
  {
  case JOY_LEFT:
    X -= CURSOR_STEP;
    break;
  case JOY_RIGHT:
    X += CURSOR_STEP;
    break;
  case JOY_UP:
    Y -= CURSOR_STEP;
    break;
  case JOY_DOWN:
    Y += CURSOR_STEP;
    break;
  default:
    return;
  }
  /* prepare buffer to send */
  Mouse_Buffer[1] = X;
  Mouse_Buffer[2] = Y;

  /* Reset the control token to inform upper layer that a transfer is ongoing */
  PrevXferComplete = 0;

  /* Copy mouse position info in ENDP1 Tx Packet Memory Area*/
  USB_SilWrite(EP1_IN, Mouse_Buffer, 4);

  /* Enable endpoint for transmission */
  USB_SetEpTxValid(ENDP1);
}

/**
 * @}
 */

/**
 * @}
 */

/**
 * @}
 */
