142 lines
4.7 KiB
C
142 lines
4.7 KiB
C
/****************************************************************************
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* boards/arm/stm32/stm32f4discovery/src/stm32_ug2864ambag01.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/ug-2864ambag01.h>
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#include "stm32_gpio.h"
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#include "stm32_spi.h"
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#include "stm32f4discovery.h"
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#ifdef CONFIG_LCD_UG2864AMBAG01
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* The pin configurations here require that SPI1 is selected */
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#ifndef CONFIG_STM32_SPI1
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# error "The OLED driver requires CONFIG_STM32_SPI1 in the configuration"
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#endif
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#ifndef CONFIG_SPI_CMDDATA
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# error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration"
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#endif
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/* Pin Configuration ********************************************************/
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/* UG-2864AMBAG01 OLED Display (SPI 4-wire):
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*
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* --------------------------+----------------------------------------------
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* Connector CON10 J1: | STM32F4Discovery
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* --------------+-----------+----------------------------------------------
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* CON10 J1: | CON20 J2: | P1/P2:
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* --------------+-----------+----------------------------------------------
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* 1 3v3 | 3,4 3v3 | P2 3V
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* 3 /RESET | 8 /RESET | P2 PB6 (Arbitrary selection)
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* 5 /CS | 7 /CS | P2 PB7 (Arbitrary selection)(2)
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* 7 A0 | 9 A0 | P2 PB8 (Arbitrary selection)(2)
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* 9 LED+ (N/C) | ----- | -----
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* 2 5V Vcc | 1,2 Vcc | P2 5V
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* 4 DI | 18 D1/SI | P1 PA7 (GPIO_SPI1_MOSI==GPIO_SPI1_MOSI_1 (1))
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* 6 SCLK | 19 D0/SCL | P1 PA5 (GPIO_SPI1_SCK==GPIO_SPI1_SCK_1 (2))
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* 8 LED- (N/C) | ----- | ------
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* 10 GND | 20 GND | P2 GND
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* --------------+-----------+----------------------------------------------
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* (1) Required because of on-board MEMS
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* (2) Note that the OLED CS and A0 are managed in the stm32_spi.c file.
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* -------------------------------------------------------------------------
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*/
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/* Definitions in stm32f4discovery.h */
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_graphics_setup
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*
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* Description:
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* Called by NX initialization logic to configure the OLED.
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*
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****************************************************************************/
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struct lcd_dev_s *board_graphics_setup(unsigned int devno)
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{
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struct spi_dev_s *spi;
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struct lcd_dev_s *dev;
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/* Configure the OLED GPIOs. This initial configuration is RESET low,
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* putting the OLED into reset state.
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*/
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stm32_configgpio(GPIO_OLED_RESET);
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/* Wait a bit then release the OLED from the reset state */
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up_mdelay(20);
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stm32_gpiowrite(GPIO_OLED_RESET, true);
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/* Get the SPI1 port interface */
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spi = stm32_spibus_initialize(1);
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if (!spi)
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{
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lcderr("ERROR: Failed to initialize SPI port 1\n");
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}
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else
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{
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/* Bind the SPI port to the OLED */
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dev = ug2864ambag01_initialize(spi, devno);
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if (!dev)
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{
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lcderr("ERROR: Failed to bind SPI port 1 to OLED %d\n", devno);
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}
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else
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{
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lcdinfo("Bound SPI port 1 to OLED %d\n", devno);
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/* And turn the OLED on */
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dev->setpower(dev, CONFIG_LCD_MAXPOWER);
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return dev;
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}
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}
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return NULL;
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}
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#endif /* CONFIG_LCD_UG2864AMBAG01 */
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