cederom commented on code in PR #18730: URL: https://github.com/apache/nuttx/pull/18730#discussion_r3080186878
########## boards/xtensa/esp32s3/esp32s3-ws-lcd128/src/esp32s3_board_lcd_gc9a01.c: ########## @@ -0,0 +1,147 @@ +/**************************************************************************** + * boards/xtensa/esp32s3/common/src/esp32s3_gc9a01.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * 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 <arch/board/board.h> +#include <debug.h> +#include <errno.h> +#include <nuttx/arch.h> +#include <nuttx/board.h> +#include <nuttx/config.h> +#include <nuttx/spi/spi.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/gc9a01.h> +#include <stdbool.h> +#include <stdio.h> +#include <syslog.h> + +#include "espressif/esp_gpio.h" +#include "esp32s3_spi.h" +#include "esp32s3-ws-lcd128.h" + +/**************************************************************************** + * 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) +{ + + syslog(LOG_INFO, "Initializing LCD GPIO pins."); + + /* SPI RX is not used. Same pin is used as LCD Data/Command control */ + + esp_configgpio(DISPLAY_DC, OUTPUT); + esp_gpiowrite(DISPLAY_DC, true); + + /* Pull LCD_RESET high */ + + esp_configgpio(DISPLAY_RST, OUTPUT); + esp_gpiowrite(DISPLAY_RST, false); + up_mdelay(50); + esp_gpiowrite(DISPLAY_RST, true); + up_mdelay(50); + + /* Set full brightness */ + + esp_configgpio(DISPLAY_BCKL, OUTPUT); + esp_gpiowrite(DISPLAY_BCKL, true); + + syslog(LOG_INFO, "Initializing LCD SPI port."); + + lcdinfo("Initializing SPI port %d\n", DISPLAY_SPI); + + g_spidev = esp32s3_spibus_initialize(DISPLAY_SPI); + if (!g_spidev) + { + lcderr("ERROR: Failed to initialize SPI port %d\n", DISPLAY_SPI); + return -ENODEV; + } + + lcdinfo("Initialized SPI port %d\n", DISPLAY_SPI); + + g_lcd = gc9a01_lcdinitialize(g_spidev); + if (!g_lcd) { + lcderr("ERROR: Failed to initialize LCD %d\n", 0); + return -ENODEV; + } + + 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. + * + ****************************************************************************/ + +struct lcd_dev_s *board_lcd_getdev(int devno) +{ + if (!g_lcd) + { + syslog(LOG_ERR, "ERROR: Failed to bind SPI port %d to LCD %d\n", + DISPLAY_SPI, devno); + return NULL; + } + else + { + lcdinfo("SPI port %d bound to LCD %d\n", DISPLAY_SPI, devno); Review Comment: Updated to syslog.. but other implementations use lcdifo as this is part of lcd debug wrappers :-) Can update as needed in future too :-) ########## boards/xtensa/esp32s3/esp32s3-ws-lcd128/src/esp32s3_board_lcd_gc9a01.c: ########## @@ -0,0 +1,147 @@ +/**************************************************************************** + * boards/xtensa/esp32s3/common/src/esp32s3_gc9a01.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * 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 <arch/board/board.h> +#include <debug.h> +#include <errno.h> +#include <nuttx/arch.h> +#include <nuttx/board.h> +#include <nuttx/config.h> +#include <nuttx/spi/spi.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/gc9a01.h> +#include <stdbool.h> +#include <stdio.h> +#include <syslog.h> + +#include "espressif/esp_gpio.h" +#include "esp32s3_spi.h" +#include "esp32s3-ws-lcd128.h" + +/**************************************************************************** + * 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) +{ + + syslog(LOG_INFO, "Initializing LCD GPIO pins."); + + /* SPI RX is not used. Same pin is used as LCD Data/Command control */ + + esp_configgpio(DISPLAY_DC, OUTPUT); + esp_gpiowrite(DISPLAY_DC, true); + + /* Pull LCD_RESET high */ + + esp_configgpio(DISPLAY_RST, OUTPUT); + esp_gpiowrite(DISPLAY_RST, false); + up_mdelay(50); + esp_gpiowrite(DISPLAY_RST, true); + up_mdelay(50); + + /* Set full brightness */ + + esp_configgpio(DISPLAY_BCKL, OUTPUT); + esp_gpiowrite(DISPLAY_BCKL, true); + + syslog(LOG_INFO, "Initializing LCD SPI port."); + + lcdinfo("Initializing SPI port %d\n", DISPLAY_SPI); Review Comment: updated, as above :-) -- This is an automated message from the Apache Git Service. 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