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STM32F4-Discovery: Add SSD1351 SPI 4-wire interface

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This commit is contained in:
Paul A. Patience
2015-10-06 18:58:19 -04:00
parent ef5959a9d1
commit 6a94d0e45a
4 changed files with 154 additions and 6 deletions
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configs/stm32f4discovery/src/Makefile
+4
View File
@@ -104,6 +104,10 @@ CSRCS += stm32_ssd1289.c
endif
endif
ifeq ($(CONFIG_LCD_SSD1351),y)
CSRCS += stm32_ssd1351.c
endif
ifeq ($(CONFIG_LCD_UG2864AMBAG01),y)
CSRCS += stm32_ug2864ambag01.c
endif
configs/stm32f4discovery/src/stm32_spi.c
+8 -5
View File
@@ -100,12 +100,13 @@ void weak_function stm32_spiinitialize(void)
#if defined(CONFIG_STM32_SPI2) && defined(CONFIG_MAX31855)
(void)stm32_configgpio(GPIO_MAX31855_CS); /* MAX31855 chip select */
#endif
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01)
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01) || \
defined(CONFIG_LCD_SSD1351)
(void)stm32_configgpio(GPIO_OLED_CS); /* OLED chip select */
# if defined(CONFIG_LCD_UG2864AMBAG01)
(void)stm32_configgpio(GPIO_OLED_A0); /* OLED Command/Data */
# endif
# if defined(CONFIG_LCD_UG2864HSWEG01)
# if defined(CONFIG_LCD_UG2864HSWEG01) || defined(CONFIG_LCD_SSD1351)
(void)stm32_configgpio(GPIO_OLED_DC); /* OLED Command/Data */
# endif
#endif
@@ -141,7 +142,8 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool sele
{
spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01)
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01) || \
defined(CONFIG_LCD_SSD1351)
if (devid == SPIDEV_DISPLAY)
{
stm32_gpiowrite(GPIO_OLED_CS, !selected);
@@ -217,7 +219,8 @@ uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
#ifdef CONFIG_STM32_SPI1
int stm32_spi1cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
{
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01)
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01) || \
defined(CONFIG_LCD_SSD1351)
if (devid == SPIDEV_DISPLAY)
{
/* "This is the Data/Command control pad which determines whether the
@@ -231,7 +234,7 @@ int stm32_spi1cmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
# if defined(CONFIG_LCD_UG2864AMBAG01)
(void)stm32_gpiowrite(GPIO_OLED_A0, !cmd);
# endif
# if defined(CONFIG_LCD_UG2864HSWEG01)
# if defined(CONFIG_LCD_UG2864HSWEG01) || defined(CONFIG_LCD_SSD1351)
(void)stm32_gpiowrite(GPIO_OLED_DC, !cmd);
# endif
return OK;
configs/stm32f4discovery/src/stm32_ssd1351.c
+140
View File
@@ -0,0 +1,140 @@
/****************************************************************************
* configs/stm32f4discovery/src/stm32_ssd1351.c
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Copyright (C) 2015 Omni Hoverboards Inc. All rights reserved.
* Authors: Gregory Nutt <gnutt@nuttx.org>
* Paul Alexander Patience <paul-a.patience@polymtl.ca>
*
* 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/arch.h>
#include <nuttx/board.h>
#include <nuttx/spi/spi.h>
#include <nuttx/lcd/lcd.h>
#include <nuttx/lcd/ssd1351.h>
#include "stm32_gpio.h"
#include "stm32f4discovery.h"
#ifdef CONFIG_LCD_SSD1351
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* The pin configurations here require that SPI1 is selected */
#ifndef CONFIG_STM32_SPI1
# error "The OLED driver requires CONFIG_STM32_SPI1 in the configuration"
#endif
#ifndef CONFIG_SSD1351_SPI4WIRE
# error "The configuration requires the SPI 4-wire interface"
#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 GPIOs. This initial configuration is RESET low,
* putting the OLED into reset state.
*/
(void)stm32_configgpio(GPIO_OLED_RESET);
/* Wait a bit then release the OLED from the reset state */
up_mdelay(20);
stm32_gpiowrite(GPIO_OLED_RESET, true);
/* Get the SPI1 port interface */
spi = up_spiinitialize(1);
if (spi == NULL)
{
lcddbg("Failed to initialize SPI port 1\n");
}
else
{
/* Bind the SPI port to the OLED */
dev = ssd1351_initialize(spi, devno);
if (dev == NULL)
{
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, LCD_FULL_ON);
return dev;
}
}
return NULL;
}
#endif /* CONFIG_LCD_SSD1351 */
configs/stm32f4discovery/src/stm32f4discovery.h
+2 -1
View File
@@ -252,7 +252,8 @@
* -------------------------------------------------------------------------
*/
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01)
#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01) || \
defined(CONFIG_LCD_SSD1351)
# define GPIO_OLED_RESET (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN6)
# define GPIO_OLED_CS (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\