text: /****************************************************************************
   * boards/arm/lpc17xx_40xx/lpc4088-devkit/src/lpc4088-devkit.h
   * arch/arm/src/board/lpc4088-devkit.h
   *
   *   Copyright (C) 2013, 2017-2018 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * 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 __BOARDS_ARM_LPC17XX_40XX_LPC4088_DEVKIT_SRC_LPC4088_DEVKIT_H
  #define __BOARDS_ARM_LPC17XX_40XX_LPC4088_DEVKIT_SRC_LPC4088_DEVKIT_H
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <nuttx/config.h>
  #include <nuttx/compiler.h>
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /* LPC4088 Developer's Kit GPIO Pin Definitions *****************************/
  
  /* GPIO P2[21] connects to the Ready/Busy pin of the NAND part.  We need to
   * reconfigure this pin as normal GPIO input if NAND is used.
   */
  
  #define GPIO_NAND_RB     (GPIO_INPUT | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN21)
  
  /* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
   * any way.  The following definitions are used to access individual LEDs.
   *
   * LED1 -- Connected to P1[14]
   * LED2 -- Connected to P0[16]
   * LED3 -- Connected to P1[13]
   * LED4 -- Connected to P4[27]
   *
   * These LEDs are connecte to ground so a high output value will illuminate
   * them.
   */
  
  #define GPIO_LED1        (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN14)
  #define GPIO_LED2        (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN16)
  #define GPIO_LED3        (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN13)
  #define GPIO_LED4        (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT4 | GPIO_PIN27)
  
  /* Button definitions *******************************************************/
  
  /* The LPC4088 Developer's Kit supports several buttons.
   * All are pulled up externally.
   * When closed, the pins will be pulled to ground.
   * So the buttons will read "1" when open and "0" when closed.
   * All are capable of generating interrupts.
   *
   * USER1           -- Connected to P2[10]
   *
   * Joystick:
   *
   * JOY_A           -- Connected to P2[23]
   * JOY_B           -- Connected to P2[25]
   * JOY_C           -- Connected to P2[26]
   * JOY_D           -- Connected to P2[27]
   * JOY_CTR         -- Connected to P2[22]
   *
   * For the interrupting buttons, interrupts are generated on both edges
   * (press and release).
   */
  
  #define GPIO_USER1       (GPIO_INPUT   | GPIO_PULLUP | GPIO_PORT4 | GPIO_PIN26)
  
  #define GPIO_JOY_A       (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN25)
  #define GPIO_JOY_B       (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN26)
  #define GPIO_JOY_C       (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN23)
  #define GPIO_JOY_D       (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN19)
  #define GPIO_JOY_CTR     (GPIO_INTBOTH | GPIO_PULLUP | GPIO_PORT0 | GPIO_PIN14)
  
  /* IRQ numbers for the buttons that do support interrupts */
  
  #define GPIO_USER1_IRQ   LPC17_40_IRQ_P2p10
  #define GPIO_JOY_A_IRQ   LPC17_40_IRQ_P2p23
  #define GPIO_JOY_B_IRQ   LPC17_40_IRQ_P2p25
  #define GPIO_JOY_C_IRQ   LPC17_40_IRQ_P2p26
  #define GPIO_JOY_D_IRQ   LPC17_40_IRQ_P2p27
  #define GPIO_JOY_CTR_IRQ LPC17_40_IRQ_P2p22
  
  /* SD Card ******************************************************************/
  
  /* The SD card detect (CD) signal is on bit 4 of the PCA9532 port expander
   * U8. Support for this is not currently set up.
   * The SD card's power is controlled through a P-channel MOSFET connected
   * to P1[5]. This pin must be driven LOW in order to enable the SD card.
   */
  
  #define GPIO_SD_PWR      (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORT1 | GPIO_PIN5)
  
  /* More work is required to complete implementation of LCD support
   * on this board.
   */
  
  #if 0
  /* LCD **********************************************************************/
  
  /* Backlight enable, P2[1].  Initial state is OFF (zero) */
  
  #define GPIO_LCD_BL      (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORT2 | GPIO_PIN1)
  
  /* XPT2046 Touchscreen ******************************************************/
  
  /* -------------- -------------------- ------------ -------------------------
   * XTPT2046       Module               Module       LPC4088 Developer's Kit LED
   *                Signal               Connector    Connector
   * -------------- -------------------- ------------ -------------------------
   * Pin 11 PENIRQ\ PENIRQ (pulled high) PORT3 Pin 1  P2.15 PENIRQ
   * Pin 12 DOUT    MISO                 PORT3 Pin 4  P1.18 MISO1  (Also USB HOST UP LED)
   * Pin 13 BUSY    BUSY (pulled high)   PORT3 Pin 9  P2.14 BUSY
   * Pin 14 DIN     MOSI                 PORT3 Pin 3  P0.13 MOSI1  (Also USB Device up LED and SD CD pin)
   * Pin 15 CS\     SSEL (pulled high)   PORT3 Pin 6  P1.8  GPIO   (Also RMII_CRS_DV)
   * Pin 16 DCLK    SCK                  PORT3 Pin 5  P1.19 SCK1
   * -------------- -------------------- ------------ -------------------------
   *
   * Pins should not need to be configured as pull-ups because, according to
   * the LCD schematic, the are pulled-up on board the LCD module.
   */
  
  #define GPIO_TC_PENIRQ   (GPIO_INTBOTH | GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN15)
  #define GPIO_TC_BUSY     (GPIO_INPUT | GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN14)
  #define GPIO_TC_CS       (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN8)
  
  #define LPC17_40_IRQ_PENIRQ LPC17_40_IRQ_P2p15
  
  #endif
  
  /****************************************************************************
   * Public data
   ****************************************************************************/
  
  #ifndef __ASSEMBLY__
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: lpc4088_devkit_bringup
   *
   * Description:
   *   Perform architecture-specific initialization
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=y :
   *     Called from board_late_initialize().
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
   *     Called from the NSH library via boardctl()
   *
   ****************************************************************************/
  
  int lpc4088_devkit_bringup(void);
  
  /****************************************************************************
   * Name: lpc4088_devkit_sspdev_initialize
   *
   * Description:
   *   Called to configure SPI chip select GPIO pins for the LPC4088 Developer's
   *   Kit board.
   *
   ****************************************************************************/
  
  void weak_function lpc4088_devkit_sspdev_initialize(void);
  
  /****************************************************************************
   * Name: lpc4088_devkit_sdram_initialize
   *
   * Description:
   *   Initialize SDRAM
   *
   ****************************************************************************/
  
  #ifdef CONFIG_LPC17_40_EMC
  #ifdef CONFIG_LPC17_40_EXTDRAM
  void lpc4088_devkit_sdram_initialize(void);
  #endif
  
  /****************************************************************************
   * Name: lpc4088_devkit_nor_initialize
   *
   * Description:
   *   Initialize NOR FLASH
   *
   ****************************************************************************/
  
  #ifdef CONFIG_LPC17_40_EXTNOR
  void lpc4088_devkit_nor_initialize(void);
  #endif
  
  /****************************************************************************
   * Name: lpc4088_devkit_nand_initialize
   *
   * Description:
   *   Initialize NAND FLASH
   *
   ****************************************************************************/
  
  #ifdef CONFIG_LPC17_40_EXTNAND
  void lpc4088_devkit_nand_initialize(void);
  #endif
  #endif /* CONFIG_LPC17_40_EMC */
  
  /****************************************************************************
   * Name: lpc4088_devkit_lcd_initialize
   *
   * Description:
   *   Initialize the LCD.  Setup backlight (initially off)
   *
   ****************************************************************************/
  
  #ifdef CONFIG_LPC17_40_LCD
  void lpc4088_devkit_lcd_initialize(void);
  #endif
  
  /****************************************************************************
   * Name: lpc4088_devkit_tsc_setup
   *
   * Description:
   *   This function is called by board-bringup logic to configure the
   *   touchscreen device.  This function will register the driver as
   *   /dev/inputN where N is the minor device number.
   *
   * Input Parameters:
   *   minor - The input device minor number
   *
   * Returned Value:
   *   Zero is returned on success.  Otherwise, a negated errno value is
   *   returned to indicate the nature of the failure.
   *
   ****************************************************************************/
  
  #ifdef CONFIG_INPUT_ADS7843E
  int lpc4088_devkit_tsc_setup(int minor);
  #endif
  
  /****************************************************************************
   * Name: lpc17_40_djoy_initialization
   *
   * Description:
   *   Initialize and register the discrete joystick driver
   *
   ****************************************************************************/
  
  #ifdef CONFIG_LPC4088_DEVKIT_DJOYSTICK
  int lpc17_40_djoy_initialization(void);
  #endif
  
  #endif /* __ASSEMBLY__ */
  #endif /* __BOARDS_ARM_LPC17XX_40XX_LPC4088_DEVKIT_SRC_LPC4088_DEVKIT_H */
  