/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2020, Ha Thach (tinyusb.org)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * This file is part of the TinyUSB stack.
 */

/* metadata:
   name: STM32 F103 Bluepill
   url: https://stm32-base.org/boards/STM32F103C8T6-Blue-Pill
*/

#ifndef BOARD_H_
#define BOARD_H_

#ifdef __cplusplus
 extern "C" {
#endif

// LED
#define LED_PORT              GPIOC
#define LED_PIN               GPIO_PIN_13
#define LED_STATE_ON          0

// Button
#define BUTTON_PORT           GPIOA
#define BUTTON_PIN            GPIO_PIN_0
#define BUTTON_STATE_ACTIVE   1

// UART
#define UART_DEV              USART1
#define UART_CLK_EN           __HAL_RCC_USART1_CLK_ENABLE
#define UART_GPIO_PORT        GPIOA
//#define UART_GPIO_AF          GPIO_AF1_USART1
#define UART_TX_PIN           GPIO_PIN_9
#define UART_RX_PIN           GPIO_PIN_10

//--------------------------------------------------------------------+
// RCC Clock
//--------------------------------------------------------------------+
static inline void board_stm32f1_clock_init(void)
{
  RCC_ClkInitTypeDef clkinitstruct = {0};
  RCC_OscInitTypeDef oscinitstruct = {0};
  RCC_PeriphCLKInitTypeDef rccperiphclkinit = {0};

  /* Enable HSE Oscillator and activate PLL with HSE as source */
  oscinitstruct.OscillatorType  = RCC_OSCILLATORTYPE_HSE;
  oscinitstruct.HSEState        = RCC_HSE_ON;
  oscinitstruct.HSEPredivValue  = RCC_HSE_PREDIV_DIV1;
  oscinitstruct.PLL.PLLMUL      = RCC_PLL_MUL9;
  oscinitstruct.PLL.PLLState    = RCC_PLL_ON;
  oscinitstruct.PLL.PLLSource   = RCC_PLLSOURCE_HSE;
  HAL_RCC_OscConfig(&oscinitstruct);

  /* USB clock selection */
  rccperiphclkinit.PeriphClockSelection = RCC_PERIPHCLK_USB;
  rccperiphclkinit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
  HAL_RCCEx_PeriphCLKConfig(&rccperiphclkinit);

  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
  clkinitstruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
  clkinitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  clkinitstruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  clkinitstruct.APB1CLKDivider = RCC_HCLK_DIV2;
  clkinitstruct.APB2CLKDivider = RCC_HCLK_DIV1;
  HAL_RCC_ClockConfig(&clkinitstruct, FLASH_LATENCY_2);
}

static inline void board_vbus_sense_init(void)
{
}

#ifdef __cplusplus
 }
#endif

#endif /* BOARD_H_ */
