/************************************************************************************
 * configs/b-l475e-iot01a/include/board.h
 *
 *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
 *   Author: Simon Piriou <spiriou31@gmail.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS 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.
 *
 ************************************************************************************/

#ifndef __CONFIG_B_L475E_IOT01A_INCLUDE_BOARD_H
#define __CONFIG_B_L475E_IOT01A_INCLUDE_BOARD_H

/************************************************************************************
 * Included Files
 ************************************************************************************/

#include <nuttx/config.h>

#ifndef __ASSEMBLY__
#  include <stdbool.h>
#endif

#include <stm32l4.h>

/************************************************************************************
 * Pre-processor Definitions
 ************************************************************************************/

/* Clocking *************************************************************************/

#include <arch/board/b-l475e-iot01a_clock.h>

/* LED definitions ******************************************************************/
/* LEDs
 *
 * Two user LEDs are available on pins PA5 and PB14.
 */

/* LED index values for use with board_userled() */

#define BOARD_LED1        0
#define BOARD_LED2        1
#define BOARD_NLEDS       2

/* LED bits for use with board_userled_all() */

#define BOARD_LED1_BIT    (1 << BOARD_LED1)
#define BOARD_LED2_BIT    (1 << BOARD_LED2)

/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
 * defined.  In that case, the usage by the board port is defined in
 * include/board.h and src/sam_autoleds.c. The LEDs are used to encode
 * OS-related events as follows:
 *
 *   ------------------- ---------------------------- ------
 *   SYMBOL                  Meaning                  LED
 *   ------------------- ---------------------------- ------   */

#define LED_STARTED      0 /* NuttX has been started  OFF      */
#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF      */
#define LED_IRQSENABLED  0 /* Interrupts enabled      OFF      */
#define LED_STACKCREATED 1 /* Idle stack created      ON       */
#define LED_INIRQ        2 /* In an interrupt         N/C      */
#define LED_SIGNAL       2 /* In a signal handler     N/C      */
#define LED_ASSERTION    2 /* An assertion failed     N/C      */
#define LED_PANIC        3 /* The system has crashed  FLASH    */
#undef  LED_IDLE           /* MCU is is sleep mode    Not used */

/* Thus if LED is statically on, NuttX has successfully  booted and is,
 * apparently, running normally.  If LED is flashing at approximately
 * 2Hz, then a fatal error has been detected and the system has halted.
 */

/* Alternate function pin selections ************************************************/

/* USART1: Connected to STLink Debug via PB6, PB7 */

#define GPIO_USART1_RX GPIO_USART1_RX_2
#define GPIO_USART1_TX GPIO_USART1_TX_2

/* UART4: Connected to arduino compatible pins DO/D1 via PA0, PA1 */

#define GPIO_UART4_RX GPIO_UART4_RX_1
#define GPIO_UART4_TX GPIO_UART4_TX_1

/************************************************************************************
 * Public Data
 ************************************************************************************/

#ifndef __ASSEMBLY__

#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

/************************************************************************************
 * Public Function Prototypes
 ************************************************************************************/

/************************************************************************************
 * Name: stm32_boardinitialize
 *
 * Description:
 *   All STM32 architectures must provide the following entry point.  This entry point
 *   is called early in the initialization -- after all memory has been configured
 *   and mapped but before any devices have been initialized.
 *
 ************************************************************************************/

void stm32_boardinitialize(void);

#undef EXTERN
#if defined(__cplusplus)
}
#endif

#endif /* __ASSEMBLY__ */
#endif  /* __CONFIG_B_L475E_IOT01A_INCLUDE_BOARD_H */