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/****************************************************************************
* config/samd20-xplained/src/sam_ug2832hsweg04.c
*
* Copyright (C) 2014 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 CONNECTOR
* ----------------- ---------------------- ----------------------
* OLED1 EXT1 EXT2
* ----------------- ---------------------- ----------------------
* 1 ID 1 1
* ----------------- ---------------------- ----------------------
* 2 GND 2 GND 2 GND
* ----------------- ---------------------- ----------------------
* 3 BUTTON2 3 PB00 AIN[8] 3 PA10 AIN[18]
* ----------------- ---------------------- ----------------------
* 4 BUTTON3 4 PB01 AIN[9] 4 PA11 AIN[19]
* ----------------- ---------------------- ----------------------
* 5 DATA_CMD_SEL 5 PB06 PORT 5 PA20 PORT
* ----------------- ---------------------- ----------------------
* 6 LED3 6 PB07 PORT 6 PA21 PORT
* ----------------- ---------------------- ----------------------
* 7 LED1 7 PB02 TC6/WO[0] 7 PA22 TC4/WO[0]
* ----------------- ---------------------- ----------------------
* 8 LED2 8 PB03 TC6/WO[1] 8 PA23 TC4/WO[1]
* ----------------- ---------------------- ----------------------
* 9 BUTTON1 9 PB04 EXTINT[4] 9 PB14 EXTINT[14]
* ----------------- ---------------------- ----------------------
* 10 DISPLAY_RESET 10 PB05 PORT 10 PB15 PORT
* ----------------- ---------------------- ----------------------
* 11 N/C 11 PA08 SERCOM2 PAD[0] 11 PA08 SERCOM2 PAD[0]
* I�C SDA I�C SDA
* ----------------- ---------------------- ----------------------
* 12 N/C 12 PA09 SERCOM2 PAD[1] 12 PA09 SERCOM2 PAD[1]
* I�C SCL I�C SCL
* ----------------- ---------------------- ----------------------
* 13 N/C 13 PB09 SERCOM4 PAD[1] 13 PB13 SERCOM4 PAD[1]
* USART RX USART RX
* ----------------- ---------------------- ----------------------
* 14 N/C 14 PB08 SERCOM4 PAD[0] 14 PB12 SERCOM4 PAD[0]
* USART TX USART TX
* ----------------- ---------------------- ----------------------
* 15 DISPLAY_SS 15 PA05 SERCOM0 PAD[1] 15 PA17 SERCOM1 PAD[1]
* SPI SS SPI SS
* ----------------- ---------------------- ----------------------
* 16 SPI_MOSI 16 PA06 SERCOM0 PAD[2] 16 PA18 SERCOM1 PAD[2]
* SPI MOSI SPI MOSI
* ----------------- ---------------------- ----------------------
* 17 N/C 17 PA04 SERCOM0 PAD[0] 17 PA16 SERCOM1 PAD[0]
* SPI MISO SPI MISO
* ----------------- ---------------------- ----------------------
* 18 SPI_SCK 18 PA07 SERCOM0 PAD[3] 18 PA19 SERCOM1 PAD[3]
* SPI SCK SPI SCK
* ----------------- ---------------------- ----------------------
* 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/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/ssd1306.h>
#include "sam_port.h"
#include "samd20-xplained.h"
#ifdef CONFIG_SAMD20_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 SAMD_HAVE_SPI0
# error "The OLED driver requires SAMD_HAVE_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, ...) dbg(format, ##__VA_ARGS__)
# define lcdvdbg(format, ...) vdbg(format, ##__VA_ARGS__)
#else
# define lcddbg(x...)
# define lcdvdbg(x...)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_graphics_setup
*
* Description:
* Called by NX initialization logic to configure the OLED.
*
****************************************************************************/
FAR struct lcd_dev_s *board_graphics_setup(unsigned int devno)
{
FAR struct spi_dev_s *spi;
FAR struct lcd_dev_s *dev;
/* Configure the OLED PORTs. This initial configuration is RESET low,
* putting the OLED into reset state.
*/
(void)sam_configport(PORT_OLED_RST);
/* Wait a bit then release the OLED from the reset state */
up_mdelay(20);
sam_portwrite(PORT_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_SAMD20_XPLAINED_OLED1MODULE */
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