From 43bce6d9b0a621e0ca6da5a41d4a2400923b0653 Mon Sep 17 00:00:00 2001 From: "Alan C. Assis" Date: Sat, 13 Mar 2021 21:05:31 -0300 Subject: [PATCH] stm32f4discovery: Add support to LCD ST7789 --- .../stm32f4discovery/configs/st7789/defconfig | 69 ++++++++++ .../arm/stm32/stm32f4discovery/src/Make.defs | 4 + .../stm32/stm32f4discovery/src/stm32_spi.c | 35 +++-- .../stm32/stm32f4discovery/src/stm32_st7789.c | 129 ++++++++++++++++++ 4 files changed, 223 insertions(+), 14 deletions(-) create mode 100644 boards/arm/stm32/stm32f4discovery/configs/st7789/defconfig create mode 100644 boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c diff --git a/boards/arm/stm32/stm32f4discovery/configs/st7789/defconfig b/boards/arm/stm32/stm32f4discovery/configs/st7789/defconfig new file mode 100644 index 00000000000..9365a321dad --- /dev/null +++ b/boards/arm/stm32/stm32f4discovery/configs/st7789/defconfig @@ -0,0 +1,69 @@ +# +# This file is autogenerated: PLEASE DO NOT EDIT IT. +# +# You can use "make menuconfig" to make any modifications to the installed .config file. +# You can then do "make savedefconfig" to generate a new defconfig file that includes your +# modifications. +# +# CONFIG_ARCH_FPU is not set +# CONFIG_NSH_ARGCAT is not set +# CONFIG_NSH_CMDOPT_HEXDUMP is not set +# CONFIG_NSH_CMDPARMS is not set +CONFIG_ARCH="arm" +CONFIG_ARCH_BOARD="stm32f4discovery" +CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y +CONFIG_ARCH_BUTTONS=y +CONFIG_ARCH_CHIP="stm32" +CONFIG_ARCH_CHIP_STM32=y +CONFIG_ARCH_CHIP_STM32F407VG=y +CONFIG_ARCH_STACKDUMP=y +CONFIG_BOARD_LATE_INITIALIZE=y +CONFIG_BOARD_LOOPSPERMSEC=16717 +CONFIG_BUILTIN=y +CONFIG_DRIVERS_VIDEO=y +CONFIG_EXAMPLES_FB=y +CONFIG_EXAMPLES_HELLO=y +CONFIG_FS_PROCFS=y +CONFIG_HAVE_CXX=y +CONFIG_HAVE_CXXINITIALIZE=y +CONFIG_INTELHEX_BINARY=y +CONFIG_LCD=y +CONFIG_LCD_FRAMEBUFFER=y +CONFIG_LCD_NOGETRUN=y +CONFIG_LCD_PORTRAIT=y +CONFIG_LCD_ST7789=y +CONFIG_MAX_TASKS=16 +CONFIG_MM_REGIONS=2 +CONFIG_NFILE_DESCRIPTORS=8 +CONFIG_NSH_ARCHINIT=y +CONFIG_NSH_BUILTIN_APPS=y +CONFIG_NSH_FILEIOSIZE=512 +CONFIG_NSH_LINELEN=64 +CONFIG_NSH_READLINE=y +CONFIG_NXFONTS_DISABLE_1BPP=y +CONFIG_NXFONTS_DISABLE_24BPP=y +CONFIG_NXFONTS_DISABLE_2BPP=y +CONFIG_NXFONTS_DISABLE_32BPP=y +CONFIG_NXFONTS_DISABLE_4BPP=y +CONFIG_NXFONTS_DISABLE_8BPP=y +CONFIG_PREALLOC_TIMERS=4 +CONFIG_RAM_SIZE=114688 +CONFIG_RAM_START=0x20000000 +CONFIG_RAW_BINARY=y +CONFIG_RR_INTERVAL=200 +CONFIG_SCHED_WAITPID=y +CONFIG_SDCLONE_DISABLE=y +CONFIG_SPI_CMDDATA=y +CONFIG_START_DAY=6 +CONFIG_START_MONTH=12 +CONFIG_START_YEAR=2011 +CONFIG_STM32_JTAG_SW_ENABLE=y +CONFIG_STM32_PWR=y +CONFIG_STM32_SPI1=y +CONFIG_STM32_USART2=y +CONFIG_SYSTEM_NSH=y +CONFIG_USART2_RXBUFSIZE=128 +CONFIG_USART2_SERIAL_CONSOLE=y +CONFIG_USART2_TXBUFSIZE=128 +CONFIG_USER_ENTRYPOINT="nsh_main" +CONFIG_VIDEO_FB=y diff --git a/boards/arm/stm32/stm32f4discovery/src/Make.defs b/boards/arm/stm32/stm32f4discovery/src/Make.defs index 43f4d34176c..fae7279db13 100644 --- a/boards/arm/stm32/stm32f4discovery/src/Make.defs +++ b/boards/arm/stm32/stm32f4discovery/src/Make.defs @@ -175,6 +175,10 @@ ifeq ($(CONFIG_WL_GS2200M),y) CSRCS += stm32_gs2200m.c endif +ifeq ($(CONFIG_LCD_ST7789),y) +CSRCS += stm32_st7789.c +endif + DEPPATH += --dep-path board VPATH += :board CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board) diff --git a/boards/arm/stm32/stm32f4discovery/src/stm32_spi.c b/boards/arm/stm32/stm32f4discovery/src/stm32_spi.c index 51cd6db35e9..be99d92b83e 100644 --- a/boards/arm/stm32/stm32f4discovery/src/stm32_spi.c +++ b/boards/arm/stm32/stm32f4discovery/src/stm32_spi.c @@ -63,7 +63,8 @@ * Name: stm32_spidev_initialize * * Description: - * Called to configure SPI chip select GPIO pins for the stm32f4discovery board. + * Called to configure SPI chip select GPIO pins for the stm32f4discovery + * board. * ****************************************************************************/ @@ -85,11 +86,11 @@ void weak_function stm32_spidev_initialize(void) stm32_configgpio(GPIO_MAX7219_CS); /* MAX7219 chip select */ #endif #ifdef CONFIG_LPWAN_SX127X - stm32_configgpio(GPIO_SX127X_CS); /* SX127x chip select*/ + stm32_configgpio(GPIO_SX127X_CS); /* SX127x chip select */ #endif -#if defined(CONFIG_LCD_ST7567) - stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */ +#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7567) + stm32_configgpio(STM32_LCD_CS); /* ST7567/ST7789 chip select */ #endif #if defined(CONFIG_STM32_SPI2) && defined(CONFIG_SENSORS_MAX6675) stm32_configgpio(GPIO_MAX6675_CS); /* MAX6675 chip select */ @@ -123,8 +124,8 @@ void weak_function stm32_spidev_initialize(void) * in your board-specific logic. These functions will perform chip * selection and status operations using GPIOs in the way your board * is configured. - * 3. Add a calls to stm32_spibus_initialize() in your low level application - * initialization logic + * 3. Add a calls to stm32_spibus_initialize() in your low level + * application initialization logic * 4. The handle returned by stm32_spibus_initialize() may then be used to * bind the SPI driver to higher level logic (e.g., calling * mmcsd_spislotinitialize(), for example, will bind the SPI driver to @@ -133,9 +134,11 @@ void weak_function stm32_spidev_initialize(void) ****************************************************************************/ #ifdef CONFIG_STM32_SPI1 -void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected) +void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, + bool selected) { - spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert"); + spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : + "de-assert"); #ifdef CONFIG_ENC28J60 if (devid == SPIDEV_ETHERNET(0)) @@ -153,7 +156,7 @@ void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected) } #endif -#ifdef CONFIG_LCD_ST7567 +#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7789) if (devid == SPIDEV_DISPLAY(0)) { stm32_gpiowrite(STM32_LCD_CS, !selected); @@ -196,9 +199,11 @@ uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, uint32_t devid) #endif #ifdef CONFIG_STM32_SPI2 -void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected) +void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid, + bool selected) { - spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert"); + spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : + "de-assert"); #if defined(CONFIG_SENSORS_MAX31855) if (devid == SPIDEV_TEMPERATURE(0)) @@ -239,9 +244,11 @@ uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, uint32_t devid) #endif #ifdef CONFIG_STM32_SPI3 -void stm32_spi3select(FAR struct spi_dev_s *dev, uint32_t devid, bool selected) +void stm32_spi3select(FAR struct spi_dev_s *dev, uint32_t devid, + bool selected) { - spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert"); + spiinfo("devid: %d CS: %s\n", (int)devid, selected ? "assert" : + "de-assert"); #if defined(CONFIG_WL_GS2200M) if (devid == SPIDEV_WIRELESS(0)) @@ -284,7 +291,7 @@ uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, uint32_t devid) #ifdef CONFIG_STM32_SPI1 int stm32_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid, bool cmd) { -#ifdef CONFIG_LCD_ST7567 +#if defined(CONFIG_LCD_ST7567) || defined(CONFIG_LCD_ST7789) if (devid == SPIDEV_DISPLAY(0)) { /* This is the Data/Command control pad which determines whether the diff --git a/boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c b/boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c new file mode 100644 index 00000000000..68b03a5a370 --- /dev/null +++ b/boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c @@ -0,0 +1,129 @@ +/**************************************************************************** + * boards/arm/stm32/stm32f4discovery/src/stm32_st7789.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "stm32.h" +#include "stm32_gpio.h" +#include "stm32_spi.h" +#include "stm32f4discovery.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define LCD_SPI_PORTNO 1 + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static struct spi_dev_s *g_spidev; +static struct lcd_dev_s *g_lcd = NULL; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: board_lcd_initialize + * + * Description: + * Initialize the LCD video hardware. The initial state of the LCD is + * fully initialized, display memory cleared, and the LCD ready to use, but + * with the power setting at 0 (full off). + * + ****************************************************************************/ + +int board_lcd_initialize(void) +{ + stm32_configgpio(STM32_LCD_RST); + stm32_configgpio(STM32_LCD_RS); + + g_spidev = stm32_spibus_initialize(LCD_SPI_PORTNO); + if (!g_spidev) + { + lcderr("ERROR: Failed to initialize SPI port %d\n", LCD_SPI_PORTNO); + return -ENODEV; + } + + stm32_gpiowrite(STM32_LCD_RST, 0); + up_mdelay(1); + stm32_gpiowrite(STM32_LCD_RST, 1); + up_mdelay(120); + + return OK; +} + +/**************************************************************************** + * Name: board_lcd_getdev + * + * Description: + * Return a a reference to the LCD object for the specified LCD. This + * allows support for multiple LCD devices. + * + ****************************************************************************/ + +FAR struct lcd_dev_s *board_lcd_getdev(int devno) +{ + g_lcd = st7789_lcdinitialize(g_spidev); + if (!g_lcd) + { + lcderr("ERROR: Failed to bind SPI port %d to LCD %d\n", LCD_SPI_PORTNO, + devno); + } + else + { + lcdinfo("SPI port %d bound to LCD %d\n", LCD_SPI_PORTNO, devno); + return g_lcd; + } + + return NULL; +} + +/**************************************************************************** + * Name: board_lcd_uninitialize + * + * Description: + * Uninitialize the LCD support + * + ****************************************************************************/ + +void board_lcd_uninitialize(void) +{ + /* Turn the display off */ + + g_lcd->setpower(g_lcd, 0); +}