FreeRTOS/Demo/CORTEX_M4_ATSAM4L_Atmel_Studio/src/asf/sam/boards/sam4l_ek/init.c - nest-detect/1.3/freertos - Git at Google

 /**
  * \file
  *
  * \brief SAM4L-EK Board init.
  *
  * This file contains board initialization function.
  *
  * Copyright (c) 2012 - 2013 Atmel Corporation. All rights reserved.
  *
  * \asf_license_start
  *
  * \page License
  *
  * 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. The name of Atmel may not be used to endorse or promote products derived
  *    from this software without specific prior written permission.
  *
  * 4. This software may only be redistributed and used in connection with an
  *    Atmel microcontroller product.
  *
  * THIS SOFTWARE IS PROVIDED BY ATMEL "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
  * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
  *
  * \asf_license_stop
  *
  */
 #include "compiler.h"
 #include "sam4l_ek.h"
 #include "conf_board.h"
 #include "ioport.h"
 #include "board.h"
 /**
  * \addtogroup  sam4l_ek_group
  * @{
  */

 /**
  * \brief Set peripheral mode for one single IOPORT pin.
  * It will configure port mode and disable pin mode (but enable peripheral).
  * \param pin IOPORT pin to configure
  * \param mode Mode masks to configure for the specified pin (\ref ioport_modes)
  */
 #define ioport_set_pin_peripheral_mode(pin, mode) \
 	do {\
 		ioport_set_pin_mode(pin, mode);\
 		ioport_disable_pin(pin);\
 	} while (0)

 void board_init(void)
 {
 	// Initialize IOPORTs
 	ioport_init();

 	// Put all pins to default state (input & pull-up)
 	uint32_t pin;

 	for (pin = PIN_PA00; pin <= PIN_PC31; pin ++) {
 		// Skip output pins to configure later
 		if (pin == LED0_GPIO || pin == LCD_BL_GPIO
 #ifdef CONF_BOARD_RS485
 		|| pin == RS485_USART_CTS_PIN
 #endif
 		/* PA02 is not configured as it is driven by hardware
 		configuration */
 		|| pin == PIN_PA02) {
 			continue;
 		}
 		ioport_set_pin_dir(pin, IOPORT_DIR_INPUT);
 		ioport_set_pin_mode(pin, IOPORT_MODE_PULLUP);
 	}

 	/* Configure the pins connected to LEDs as output and set their
 	 * default initial state to high (LEDs off).
 	 */
 	ioport_set_pin_dir(LED0_GPIO, IOPORT_DIR_OUTPUT);
 	ioport_set_pin_level(LED0_GPIO, LED0_INACTIVE_LEVEL);

 #ifdef  CONF_BOARD_EIC
 	// Set push button as external interrupt pin
 	ioport_set_pin_peripheral_mode(GPIO_PUSH_BUTTON_EIC_PIN,
 			GPIO_PUSH_BUTTON_EIC_PIN_MUX);
 	ioport_set_pin_peripheral_mode(GPIO_UNIT_TEST_EIC_PIN,
 			GPIO_UNIT_TEST_EIC_PIN_MUX);
 #else
 	// Push button as input: already done, it's the default pin state
 #endif

 #if (defined CONF_BOARD_BL)
 	// Configure LCD backlight
 	ioport_set_pin_dir(LCD_BL_GPIO, IOPORT_DIR_OUTPUT);
 	ioport_set_pin_level(LCD_BL_GPIO, LCD_BL_INACTIVE_LEVEL);
 #endif

 #if (defined CONF_BOARD_USB_PORT)
 	ioport_set_pin_peripheral_mode(PIN_PA25A_USBC_DM, MUX_PA25A_USBC_DM);
 	ioport_set_pin_peripheral_mode(PIN_PA26A_USBC_DP, MUX_PA26A_USBC_DP);
 # if defined(CONF_BOARD_USB_VBUS_DETECT)
 #   if defined(USB_VBUS_EIC)
 	ioport_set_pin_peripheral_mode(USB_VBUS_EIC,
 			USB_VBUS_EIC_MUX|USB_VBUS_FLAGS);
 #   elif defined(USB_VBUS_PIN)
 	ioport_set_pin_dir(USB_VBUS_PIN, IOPORT_DIR_INPUT);
 #   else
 #       warning USB_VBUS pin not defined
 #   endif
 # endif
 # if defined(CONF_BOARD_USB_ID_DETECT)
 #   if defined(USB_ID_EIC)
 	ioport_set_pin_peripheral_mode(USB_ID_EIC,
 			USB_ID_EIC_MUX|USB_ID_FLAGS);
 #   elif defined(USB_ID_PIN)
 	ioport_set_pin_dir(USB_ID_PIN, IOPORT_DIR_INPUT);
 #   else
 #       warning USB_ID pin not defined
 #   endif
 # endif
 # if defined(CONF_BOARD_USB_VBUS_CONTROL)
 #   if defined(USB_VBOF_PIN)
 	ioport_set_pin_dir(USB_VBOF_PIN, IOPORT_DIR_OUTPUT);
 	ioport_set_pin_level(USB_VBOF_PIN, USB_VBOF_INACTIVE_LEVEL);
 #   else
 #       warning USB_VBOF pin not defined
 #   endif
 #  if defined(CONF_BOARD_USB_VBUS_ERR_DETECT)
 #    if defined(USB_VBERR_EIC)
 	ioport_set_pin_peripheral_mode(USB_VBERR_EIC,
 			USB_VBERR_EIC_MUX|USB_VBERR_FLAGS);
 #    elif defined(USB_VBERR_PIN)
 	ioport_set_pin_dir(USB_VBERR_PIN, IOPORT_DIR_INPUT);
 #    else
 #        warning USB_VBERR pin not defined
 #    endif
 #  endif
 # endif /* !(defined CONF_BOARD_USB_NO_VBUS_CONTROL) */
 #endif /* (defined CONF_BOARD_USB_PORT) */

 #if defined (CONF_BOARD_COM_PORT)
 	ioport_set_pin_peripheral_mode(COM_PORT_RX_PIN, COM_PORT_RX_MUX);
 	ioport_set_pin_peripheral_mode(COM_PORT_TX_PIN, COM_PORT_TX_MUX);
 #endif

 #if defined (CONF_BOARD_BM_USART)
 	ioport_set_pin_peripheral_mode(BM_USART_RX_PIN, BM_USART_RX_MUX);
 	ioport_set_pin_peripheral_mode(BM_USART_TX_PIN, BM_USART_TX_MUX);
 #endif

 #ifdef CONF_BOARD_SPI
 	ioport_set_pin_peripheral_mode(PIN_PC04A_SPI_MISO, MUX_PC04A_SPI_MISO);
 	ioport_set_pin_peripheral_mode(PIN_PC05A_SPI_MOSI, MUX_PC05A_SPI_MOSI);
 	ioport_set_pin_peripheral_mode(PIN_PC06A_SPI_SCK, MUX_PC06A_SPI_SCK);

 	#ifdef CONF_BOARD_SPI_NPCS0
 		ioport_set_pin_peripheral_mode(PIN_PA02B_SPI_NPCS0,
 				MUX_PA02B_SPI_NPCS0);
 	#endif
 	#ifdef CONF_BOARD_SPI_NPCS2
 		ioport_set_pin_peripheral_mode(PIN_PC00A_SPI_NPCS2,
 				MUX_PC00A_SPI_NPCS2);
 	#endif
 	#ifdef CONF_BOARD_SPI_NPCS3
 		ioport_set_pin_peripheral_mode(PIN_PC01A_SPI_NPCS3,
 				MUX_PC01A_SPI_NPCS3);
 	#endif

 #endif

 #ifdef CONF_BOARD_RS485
 	ioport_set_pin_peripheral_mode(RS485_USART_RX_PIN, RS485_USART_RX_MUX);
 	ioport_set_pin_peripheral_mode(RS485_USART_TX_PIN, RS485_USART_TX_MUX);
 	ioport_set_pin_peripheral_mode(RS485_USART_RTS_PIN,
 			RS485_USART_RTS_MUX);
 	ioport_set_pin_dir(RS485_USART_CTS_PIN, IOPORT_DIR_OUTPUT);
 	ioport_set_pin_level(RS485_USART_CTS_PIN, IOPORT_PIN_LEVEL_LOW);
 #endif

 #ifdef CONF_BOARD_TWIMS1
 	ioport_set_pin_peripheral_mode(TWIMS1_TWI_SCL_PIN, TWIMS1_TWI_SCL_MUX);
 	ioport_set_pin_peripheral_mode(TWIMS1_TWI_SDA_PIN, TWIMS1_TWI_SDA_MUX);
 #endif

 #ifdef CONF_BOARD_USART0
 	ioport_set_pin_peripheral_mode(USART0_RX_PIN, USART0_RX_MUX);
 	ioport_set_pin_peripheral_mode(USART0_TX_PIN, USART0_TX_MUX);
 #endif

 #ifdef CONF_BOARD_DACC_VOUT
 	ioport_set_pin_peripheral_mode(DACC_VOUT_PIN, DACC_VOUT_MUX);
 #endif

 #ifdef CONF_BOARD_ACIFC
 	ioport_set_pin_peripheral_mode(PIN_PA06E_ACIFC_ACAN0, MUX_PA06E_ACIFC_ACAN0);
 	ioport_set_pin_peripheral_mode(PIN_PA07E_ACIFC_ACAP0, MUX_PA07E_ACIFC_ACAP0);
 #endif

 #ifdef CONF_BOARD_ABDACB_PORT
 	ioport_set_pin_peripheral_mode(ABDACB_AUDIO0_PIN, ABDACB_AUDIO0_MUX);
 	ioport_set_pin_peripheral_mode(ABDACB_AUDIO1_PIN, ABDACB_AUDIO1_MUX);
 #endif
 }
 /**
  * @}
  */
	/**
	* \file
	*
	* \brief SAM4L-EK Board init.
	*
	* This file contains board initialization function.
	*
	* Copyright (c) 2012 - 2013 Atmel Corporation. All rights reserved.
	*
	* \asf_license_start
	*
	* \page License
	*
	* 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. The name of Atmel may not be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* 4. This software may only be redistributed and used in connection with an
	* Atmel microcontroller product.
	*
	* THIS SOFTWARE IS PROVIDED BY ATMEL "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
	* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
	*
	* \asf_license_stop
	*
	*/
	#include "compiler.h"
	#include "sam4l_ek.h"
	#include "conf_board.h"
	#include "ioport.h"
	#include "board.h"
	/**
	* \addtogroup sam4l_ek_group
	* @{
	*/

	/**
	* \brief Set peripheral mode for one single IOPORT pin.
	* It will configure port mode and disable pin mode (but enable peripheral).
	* \param pin IOPORT pin to configure
	* \param mode Mode masks to configure for the specified pin (\ref ioport_modes)
	*/
	#define ioport_set_pin_peripheral_mode(pin, mode) \
	do {\
	ioport_set_pin_mode(pin, mode);\
	ioport_disable_pin(pin);\
	} while (0)

	void board_init(void)
	{
	// Initialize IOPORTs
	ioport_init();

	// Put all pins to default state (input & pull-up)
	uint32_t pin;

	for (pin = PIN_PA00; pin <= PIN_PC31; pin ++) {
	// Skip output pins to configure later
	if (pin == LED0_GPIO \|\| pin == LCD_BL_GPIO
	#ifdef CONF_BOARD_RS485
	\|\| pin == RS485_USART_CTS_PIN
	#endif
	/* PA02 is not configured as it is driven by hardware
	configuration */
	\|\| pin == PIN_PA02) {
	continue;
	}
	ioport_set_pin_dir(pin, IOPORT_DIR_INPUT);
	ioport_set_pin_mode(pin, IOPORT_MODE_PULLUP);
	}

	/* Configure the pins connected to LEDs as output and set their
	* default initial state to high (LEDs off).
	*/
	ioport_set_pin_dir(LED0_GPIO, IOPORT_DIR_OUTPUT);
	ioport_set_pin_level(LED0_GPIO, LED0_INACTIVE_LEVEL);

	#ifdef CONF_BOARD_EIC
	// Set push button as external interrupt pin
	ioport_set_pin_peripheral_mode(GPIO_PUSH_BUTTON_EIC_PIN,
	GPIO_PUSH_BUTTON_EIC_PIN_MUX);
	ioport_set_pin_peripheral_mode(GPIO_UNIT_TEST_EIC_PIN,
	GPIO_UNIT_TEST_EIC_PIN_MUX);
	#else
	// Push button as input: already done, it's the default pin state
	#endif

	#if (defined CONF_BOARD_BL)
	// Configure LCD backlight
	ioport_set_pin_dir(LCD_BL_GPIO, IOPORT_DIR_OUTPUT);
	ioport_set_pin_level(LCD_BL_GPIO, LCD_BL_INACTIVE_LEVEL);
	#endif

	#if (defined CONF_BOARD_USB_PORT)
	ioport_set_pin_peripheral_mode(PIN_PA25A_USBC_DM, MUX_PA25A_USBC_DM);
	ioport_set_pin_peripheral_mode(PIN_PA26A_USBC_DP, MUX_PA26A_USBC_DP);
	# if defined(CONF_BOARD_USB_VBUS_DETECT)
	# if defined(USB_VBUS_EIC)
	ioport_set_pin_peripheral_mode(USB_VBUS_EIC,
	USB_VBUS_EIC_MUX\|USB_VBUS_FLAGS);
	# elif defined(USB_VBUS_PIN)
	ioport_set_pin_dir(USB_VBUS_PIN, IOPORT_DIR_INPUT);
	# else
	# warning USB_VBUS pin not defined
	# endif
	# endif
	# if defined(CONF_BOARD_USB_ID_DETECT)
	# if defined(USB_ID_EIC)
	ioport_set_pin_peripheral_mode(USB_ID_EIC,
	USB_ID_EIC_MUX\|USB_ID_FLAGS);
	# elif defined(USB_ID_PIN)
	ioport_set_pin_dir(USB_ID_PIN, IOPORT_DIR_INPUT);
	# else
	# warning USB_ID pin not defined
	# endif
	# endif
	# if defined(CONF_BOARD_USB_VBUS_CONTROL)
	# if defined(USB_VBOF_PIN)
	ioport_set_pin_dir(USB_VBOF_PIN, IOPORT_DIR_OUTPUT);
	ioport_set_pin_level(USB_VBOF_PIN, USB_VBOF_INACTIVE_LEVEL);
	# else
	# warning USB_VBOF pin not defined
	# endif
	# if defined(CONF_BOARD_USB_VBUS_ERR_DETECT)
	# if defined(USB_VBERR_EIC)
	ioport_set_pin_peripheral_mode(USB_VBERR_EIC,
	USB_VBERR_EIC_MUX\|USB_VBERR_FLAGS);
	# elif defined(USB_VBERR_PIN)
	ioport_set_pin_dir(USB_VBERR_PIN, IOPORT_DIR_INPUT);
	# else
	# warning USB_VBERR pin not defined
	# endif
	# endif
	# endif /* !(defined CONF_BOARD_USB_NO_VBUS_CONTROL) */
	#endif /* (defined CONF_BOARD_USB_PORT) */

	#if defined (CONF_BOARD_COM_PORT)
	ioport_set_pin_peripheral_mode(COM_PORT_RX_PIN, COM_PORT_RX_MUX);
	ioport_set_pin_peripheral_mode(COM_PORT_TX_PIN, COM_PORT_TX_MUX);
	#endif

	#if defined (CONF_BOARD_BM_USART)
	ioport_set_pin_peripheral_mode(BM_USART_RX_PIN, BM_USART_RX_MUX);
	ioport_set_pin_peripheral_mode(BM_USART_TX_PIN, BM_USART_TX_MUX);
	#endif

	#ifdef CONF_BOARD_SPI
	ioport_set_pin_peripheral_mode(PIN_PC04A_SPI_MISO, MUX_PC04A_SPI_MISO);
	ioport_set_pin_peripheral_mode(PIN_PC05A_SPI_MOSI, MUX_PC05A_SPI_MOSI);
	ioport_set_pin_peripheral_mode(PIN_PC06A_SPI_SCK, MUX_PC06A_SPI_SCK);

	#ifdef CONF_BOARD_SPI_NPCS0
	ioport_set_pin_peripheral_mode(PIN_PA02B_SPI_NPCS0,
	MUX_PA02B_SPI_NPCS0);
	#endif
	#ifdef CONF_BOARD_SPI_NPCS2
	ioport_set_pin_peripheral_mode(PIN_PC00A_SPI_NPCS2,
	MUX_PC00A_SPI_NPCS2);
	#endif
	#ifdef CONF_BOARD_SPI_NPCS3
	ioport_set_pin_peripheral_mode(PIN_PC01A_SPI_NPCS3,
	MUX_PC01A_SPI_NPCS3);
	#endif

	#endif

	#ifdef CONF_BOARD_RS485
	ioport_set_pin_peripheral_mode(RS485_USART_RX_PIN, RS485_USART_RX_MUX);
	ioport_set_pin_peripheral_mode(RS485_USART_TX_PIN, RS485_USART_TX_MUX);
	ioport_set_pin_peripheral_mode(RS485_USART_RTS_PIN,
	RS485_USART_RTS_MUX);
	ioport_set_pin_dir(RS485_USART_CTS_PIN, IOPORT_DIR_OUTPUT);
	ioport_set_pin_level(RS485_USART_CTS_PIN, IOPORT_PIN_LEVEL_LOW);
	#endif

	#ifdef CONF_BOARD_TWIMS1
	ioport_set_pin_peripheral_mode(TWIMS1_TWI_SCL_PIN, TWIMS1_TWI_SCL_MUX);
	ioport_set_pin_peripheral_mode(TWIMS1_TWI_SDA_PIN, TWIMS1_TWI_SDA_MUX);
	#endif

	#ifdef CONF_BOARD_USART0
	ioport_set_pin_peripheral_mode(USART0_RX_PIN, USART0_RX_MUX);
	ioport_set_pin_peripheral_mode(USART0_TX_PIN, USART0_TX_MUX);
	#endif

	#ifdef CONF_BOARD_DACC_VOUT
	ioport_set_pin_peripheral_mode(DACC_VOUT_PIN, DACC_VOUT_MUX);
	#endif

	#ifdef CONF_BOARD_ACIFC
	ioport_set_pin_peripheral_mode(PIN_PA06E_ACIFC_ACAN0, MUX_PA06E_ACIFC_ACAN0);
	ioport_set_pin_peripheral_mode(PIN_PA07E_ACIFC_ACAP0, MUX_PA07E_ACIFC_ACAP0);
	#endif

	#ifdef CONF_BOARD_ABDACB_PORT
	ioport_set_pin_peripheral_mode(ABDACB_AUDIO0_PIN, ABDACB_AUDIO0_MUX);
	ioport_set_pin_peripheral_mode(ABDACB_AUDIO1_PIN, ABDACB_AUDIO1_MUX);
	#endif
	}
	/**
	* @}
	*/