/****************************************************************************
* config/sam4l-xplained/src/sam_ug2832hsweg04.c
*
* Copyright (C) 2013 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.
*
****************************************************************************/
/* OLED1 Connector:
*
* OLED1 EXT1 EXT2 Other use of either pin
* ----------------- -------------------- -------------------- ------------------------------------
* 1 ID 1 1
* 2 GND 2 GND 2
* 3 BUTTON2 3 PA04 ADCIFE/AD0 3 PA07 ADCIFE/AD2
* 4 BUTTON3 4 PA05 ADCIFE/AD1 4 PB02 ADCIFE/AD3
* 5 DATA_CMD_SEL 5 PB12 GPIO 5 PC08 GPIO PB12 and PC8 on EXT5
* 6 LED3 6 PC02 GPIO 6 PB10 GPIO PB10 on EXT5
* 7 LED1 7 PC00 TC/1/A0 7 PC04 TC/1/A2
* 8 LED2 8 PC01 TC/1/B0 8 PC05 TC/1/B2 PC05 on EXT5
* 9 BUTTON1 9 PC25 EIC/EXTINT2 9 PC06 EIC/EXTINT8 PC25 on EXT5
* 10 DISPLAY_RESET 10 PB13 SPI/NPCS1 10 PC09 GPIO PB13 on EXT5
* 11 N/C 11 PA23 TWIMS/0/TWD 11 PB14 TWIMS/3/TWD PB14 on EXT3&4, PA23 and PB14 on EXT5
* 12 N/C 12 PA24 TWIMS/0/TWCK 12 PB15 TWIMS/3/TWCK PB15 on EXT3&4, PA24 and PB15 on EXT5
* 13 N/C 13 PB00 USART/0/RXD 13 PC26 USART/1/RXD PB00 on EXT4, PC26 on EXT3&5
* 14 N/C 14 PB01 USART/0/TXD 14 PC27 USART/1/TXD PB01 on EXT4, PC27 on EXT3&5
* 15 DISPLAY_SS 15 PC03 SPI/NPCS0 15 PB11 SPI/NPCS2 PB11 on EXT5
* 16 SPI_MOSI 16 PA22 SPI/MOSI 16 PA22 SPI/MOSI PA22 on EXT5
* 17 N/C 17 PA21 SPI/MISO 17 PA21 SPI/MISO PA21 on EXT5
* 18 SPI_SCK 18 PC30 SPI/SCK 18 PC30 SPI/SCK PC30 on EXT5
* 19 GND 19 GND GND
* 20 VCC 20 VCC VCC
*
* OLED1 signals
*
* DATA_CMD_SEL - Data/command select. Used to choose whether the
* communication is data to the display memory or a command to the LCD
* controller. High = data, low = command
* DISPLAY_RESET - Reset signal to the OLED display, active low. Used during
* initialization of the display.
* DISPLAY_SS - SPI slave select signal, must be held low during SPI
* communication.
* SPI_MOSI - SPI master out, slave in signal. Used to write data to the
* display
* SPI_SCK SPI - clock signal, generated by the master.
*/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/ssd1306.h>
#include "sam_gpio.h"
#include "sam4l-xplained.h"
#ifdef CONFIG_SAM4L_XPLAINED_OLED1MODULE
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* The pin configurations here require that SPI1 is selected */
#ifndef CONFIG_LCD_SSD1306
# error "The OLED driver requires CONFIG_LCD_SSD1306 in the configuration"
#endif
#ifndef CONFIG_LCD_UG2832HSWEG04
# error "The OLED driver requires CONFIG_LCD_UG2832HSWEG04 in the configuration"
#endif
#ifndef CONFIG_SAM34_SPI0
# error "The OLED driver requires CONFIG_SAM34_SPI0 in the configuration"
#endif
#ifndef CONFIG_SPI_CMDDATA
# error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration"
#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;
/* Configure the OLED GPIOs. This initial configuration is RESET low,
* putting the OLED into reset state.
*/
(void)sam_configgpio(GPIO_OLED_RST);
/* Wait a bit then release the OLED from the reset state */
up_mdelay(20);
sam_gpiowrite(GPIO_OLED_RST, true);
/* Get the SPI1 port interface */
spi = up_spiinitialize(OLED_CSNO);
if (!spi)
{
lcddbg("Failed to initialize SPI port 1\n");
}
else
{
/* Bind the SPI port to the OLED */
dev = ssd1306_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_SAM4L_XPLAINED_OLED1MODULE */
