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/****************************************************************************
* config/zp214xpa/src/up_ug2864ambag01.c
* arch/arm/src/board/up_ug2864ambag01.c
*
* Copyright (C) 2012 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/ug-2864ambag01.h>
#include "up_arch.h"
#include "chip.h"
#include "lpc214x_pinsel.h"
#ifdef CONFIG_LCD_UG2864AMBAG01
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* The pin configurations here requires that SPI1 is avaialable */
/* SPI should be configured with CMD/DATA support (and no transfer methods) */
#ifndef CONFIG_SPI_CMDDATA
# error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration"
#endif
/* Pin Configuration ********************************************************/
/* UG-2864AMBAG01 OLED Display:
*
* PIN NAME PIN CONFIGURATION
* 1 3V3
* 2 5V
* 3 RESET P0.18/CAP1.3/MISO1/MAT1.3P0.18 RESET - General purpose output
* 4 DI P0.19/MAT1.2/MOSI1/CAP1.2P0.19 DI - Alternate function 2
* 5 CS P0.20/MAT1.3/SSEL1/EINT3 - General purpose output
* 6 SCK P0.17/CAP1.2/SCK1/MAT1.2 - Alternate function 2
* 7 A0 P0.23/VBUS - General purpose output
* 8 N/C LED-
* 9 N/C LED+ (BL)
* 10 GND
*
* Definitions and configuration for DO, DI, CS, in up_spi1.c
*/
/* Use either FIO or legacy GPIO */
#ifdef CONFIG_LPC214x_FIO
# define RESET_PIN_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_PIN_OFFSET)
# define RESET_SET_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_SET_OFFSET)
# define RESET_CLR_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_CLR_OFFSET)
# define RESET_DIR_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_DIR_OFFSET)
#else
# define RESET_PIN_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_PIN_OFFSET)
# define RESET_SET_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_SET_OFFSET)
# define RESET_CLR_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_CLR_OFFSET)
# define RESET_DIR_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_DIR_OFFSET)
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_DEBUG_LCD
# define lcddbg(format, arg...) dbg(format, ##arg)
# define lcdvdbg(format, arg...) vdbg(format, ##arg)
#else
# define lcddbg(x...)
# define lcdvdbg(x...)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_nxdrvinit
*
* Description:
* Called by NX initialization logic to configure the OLED.
*
****************************************************************************/
FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
{
FAR struct spi_dev_s *spi;
FAR struct lcd_dev_s *dev;
uint32_t regval32;
uint32_t bits32;
/* Configure multiplexed pins as connected on the ZP213X/4XPA board:
*
* PINSEL1 P0.18/CAP1.3/MISO1/MAT1.3 Bits 4-5=00 for P0.18
*/
regval32 = getreg32(LPC214X_PINSEL1);
regval32 &= ~LPC214X_PINSEL1_P018_MASK;
regval32 |= LPC214X_PINSEL1_P018_GPIO;
putreg32(regval32, LPC214X_PINSEL1);
/* Set the RESET line low, putting the OLED into the reset state. */
bits32 = (1 << 18);
putreg32(bits32, RESET_CLR_REGISTER);
regval32 = getreg32(RESET_DIR_REGISTER);
putreg32(regval32 | bits32, RESET_DIR_REGISTER);
lcdvdbg("RESET Pin Config: PINSEL1: %08x PIN: %08x DIR: %08x\n",
getreg32(LPC214X_PINSEL1), getreg32(RESET_PIN_REGISTER),
getreg32(RESET_DIR_REGISTER));
/* Wait a bit then release the OLED from the reset state */
up_mdelay(20);
putreg32(bits32, RESET_SET_REGISTER);
lcdvdbg("RESET release: PIN: %08x DIR: %08x\n",
getreg32(RESET_PIN_REGISTER), getreg32(RESET_DIR_REGISTER));
/* Get the SPI1 port interface */
spi = up_spiinitialize(1);
if (!spi)
{
lcddbg("Failed to initialize SPI port 1\n");
}
else
{
/* Bind the SPI port to the OLED */
dev = ug2864ambag01_initialize(spi, devno);
if (!dev)
{
lcddbg("Failed to bind SPI port 1 to OLED %d: %d\n", devno);
}
else
{
lcdvdbg("Bound SPI port 1 to OLED %d\n", devno);
/* And turn the OLED on */
(void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
return dev;
}
}
return NULL;
}
#endif /* CONFIG_LCD_UG2864AMBAG01 */
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