/************************************************************************************
 * configs/stm32_tiny/src/stm32_tiny-internal.h
 *
 *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
 *   Author: Laurent Latil <laurent@latil.nom.fr>
 *
 * 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 __CONFIGS_STM32_TINY_INTERNAL_H
#define __CONFIGS_STM32_TINY_INTERNAL_H

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

#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <stdint.h>

/************************************************************************************
 * Definitions
 ************************************************************************************/

/* How many SPI modules does this chip support? The LM3S6918 supports 2 SPI
 * modules (others may support more -- in such case, the following must be
 * expanded).
 */

#if STM32_NSPI < 1
#  undef CONFIG_STM32_SPI1
#  undef CONFIG_STM32_SPI2
#elif STM32_NSPI < 2
#  undef CONFIG_STM32_SPI2
#endif

/* GPIOs **************************************************************/
/* LEDs */

#define GPIO_LED        (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
                         GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN5)

/* USB Soft Connect Pullup: PC.13 */

#define GPIO_USB_PULLUP (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
                         GPIO_OUTPUT_SET|GPIO_PORTC|GPIO_PIN13)

/* NRF24L01 chip select:  PB.12 */

#define GPIO_NRF24L01_CS   (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
                         GPIO_OUTPUT_SET|GPIO_PORTB|GPIO_PIN12)

/* NRF24L01 chip enable:  PB.1 */

#define GPIO_NRF24L01_CE   (GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_50MHz|\
                         GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN1)

/* NRF24L01 IRQ line:  PA.0 */

#define GPIO_NRF24L01_IRQ  (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_PORTA|GPIO_PIN0)

/* PWM
 *
 * Let's use the LED.  It is connected to PB.5, which can be used as PWM output of channel 2 of timer 3
 * (STM32_TIM3_PARTIAL_REMAP must be enabled)
 */

#ifdef CONFIG_PWM
#  if defined(CONFIG_STM32_TIM3_PWM) && defined(CONFIG_STM32_TIM3_PARTIAL_REMAP) && CONFIG_STM32_TIM3_CHANNEL == 2
#    define STM32TINY_PWMTIMER 3
#  else
#    error To use the PWM device, the timer 3 partial remap must be enabled, and the PWM device must be configured on timer 3 / channel 2
#  endif
#endif

/************************************************************************************
 * Public Types
 ************************************************************************************/

/************************************************************************************
 * Public data
 ************************************************************************************/

#ifndef __ASSEMBLY__

/************************************************************************************
 * Public Functions
 ************************************************************************************/

/************************************************************************************
 * Name: stm32_spiinitialize
 *
 * Description:
 *   Called to configure SPI chip select GPIO pins for the Hy-Mini STM32v board.
 *
 ************************************************************************************/

extern void stm32_spiinitialize(void);

/************************************************************************************
 * Name: stm32_usbinitialize
 *
 * Description:
 *   Called to setup USB-related GPIO pins for the Hy-Mini STM32v board.
 *
 ************************************************************************************/

extern void stm32_usbinitialize(void);

/************************************************************************************
 * Name: up_wlinitialize
 *
 * Description:
 *   Called to configure wireless module (nRF24L01).
 *
 ************************************************************************************/

extern void up_wlinitialize(void);

#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_HYMINI_STM32V_INTERNAL_H */