diff --git a/boards/xtensa/esp32/common/include/esp32_lcd_backpack.h b/boards/xtensa/esp32/common/include/esp32_lcd_backpack.h new file mode 100644 index 0000000000..7a3ebfa508 --- /dev/null +++ b/boards/xtensa/esp32/common/include/esp32_lcd_backpack.h @@ -0,0 +1,83 @@ +/**************************************************************************** + * boards/xtensa/esp32/common/include/esp32_lcd_backpack.h + * + * 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. + * + ****************************************************************************/ + +#ifndef __ESP32_LCD_BACKPACK_H +#define __ESP32_LCD_BACKPACK_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Inline Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: board_lcd_backpack_init + * + * Description: + * Initialize the LCD1602 display controlled by Backpack with PCF8574 + * + * Input Parameters: + * devpath - The full path to the driver to register. E.g., "/dev/slcd0" + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ + +int board_lcd_backpack_init(int devno, int busno, int rows, int cols); + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __ESP3232_LCD_BACKPACK_H */ diff --git a/boards/xtensa/esp32/common/src/Make.defs b/boards/xtensa/esp32/common/src/Make.defs index d8dfeb5a1a..7ff7021903 100644 --- a/boards/xtensa/esp32/common/src/Make.defs +++ b/boards/xtensa/esp32/common/src/Make.defs @@ -54,6 +54,10 @@ ifeq ($(CONFIG_CAN_MCP2515),y) CSRCS += esp32_mcp2515.c endif +ifeq ($(CONFIG_LCD_BACKPACK),y) + CSRCS += esp32_lcd_backpack.c +endif + ifeq ($(CONFIG_LCD_ILI9341),y) CSRCS += esp32_ili9341.c endif diff --git a/boards/xtensa/esp32/common/src/esp32_lcd_backpack.c b/boards/xtensa/esp32/common/src/esp32_lcd_backpack.c new file mode 100644 index 0000000000..137165ba04 --- /dev/null +++ b/boards/xtensa/esp32/common/src/esp32_lcd_backpack.c @@ -0,0 +1,98 @@ +/**************************************************************************** + * boards/xtensa/esp32/common/src/esp32_lcd_backpack.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 "esp32_board_i2c.h" +#include "esp32_i2c.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: board_lcd_backpack_init + * + * Description: + * Initialize the LCD1602 display controlled by Backpack with PCF8574 + * + * Input Parameters: + * devpath - The full path to the driver to register. E.g., "/dev/slcd0" + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ + +int board_lcd_backpack_init(int devno, int busno, int rows, int cols) +{ + FAR struct pcf8574_lcd_backpack_config_s cfg = + LCD_I2C_BACKPACK_CFG_SAINSMART; + FAR struct i2c_master_s *i2c; + char devpath[12]; + int ret; + + /* Setup the LCD row and cols size. + * Note: We are using the LCD_I2C_BACKPACK_CFG_SAINSMART config that + * defined the I2C Address to 0x27 to PCF8574. Double check if all + * the bits (pins) from PCF8574 connected to the LCD controller + * are correct with this LCD CFG definition. + */ + + cfg.rows = rows; + cfg.cols = cols; + + /* Initialize the I2C1 */ + + i2c = esp32_i2cbus_initialize(busno); + if (i2c == NULL) + { + return -ENODEV; + } + + /* Register the Segment LCD */ + + snprintf(devpath, 12, "/dev/slcd%d", devno); + ret = pcf8574_lcd_backpack_register(devpath, i2c, &cfg); + if (ret < 0) + { + lcderr("ERROR: pcf8574_lcd_backpack_register(%s) failed: %d\n", + devpath, ret); + return ret; + } + + return OK; +} diff --git a/boards/xtensa/esp32/esp32-wrover-kit/configs/lcd1602/defconfig b/boards/xtensa/esp32/esp32-wrover-kit/configs/lcd1602/defconfig new file mode 100644 index 0000000000..9c8b7dbe3e --- /dev/null +++ b/boards/xtensa/esp32/esp32-wrover-kit/configs/lcd1602/defconfig @@ -0,0 +1,51 @@ +# +# 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_LEDS is not set +# CONFIG_NSH_ARGCAT is not set +# CONFIG_NSH_CMDOPT_HEXDUMP is not set +# CONFIG_NSH_CMDPARMS is not set +CONFIG_ARCH="xtensa" +CONFIG_ARCH_BOARD="esp32-wrover-kit" +CONFIG_ARCH_BOARD_ESP32_WROVERKIT=y +CONFIG_ARCH_CHIP="esp32" +CONFIG_ARCH_CHIP_ESP32=y +CONFIG_ARCH_CHIP_ESP32WROVER=y +CONFIG_ARCH_STACKDUMP=y +CONFIG_ARCH_XTENSA=y +CONFIG_BOARD_LOOPSPERMSEC=16717 +CONFIG_BUILTIN=y +CONFIG_ESP32_I2C0=y +CONFIG_ESP32_UART0=y +CONFIG_EXAMPLES_SLCD=y +CONFIG_FS_PROCFS=y +CONFIG_HAVE_CXX=y +CONFIG_HAVE_CXXINITIALIZE=y +CONFIG_I2C=y +CONFIG_IDLETHREAD_STACKSIZE=3072 +CONFIG_INTELHEX_BINARY=y +CONFIG_LCD_BACKPACK=y +CONFIG_MM_REGIONS=3 +CONFIG_NSH_ARCHINIT=y +CONFIG_NSH_BUILTIN_APPS=y +CONFIG_NSH_FILEIOSIZE=512 +CONFIG_NSH_LINELEN=64 +CONFIG_NSH_READLINE=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_SLCD=y +CONFIG_START_DAY=6 +CONFIG_START_MONTH=12 +CONFIG_START_YEAR=2011 +CONFIG_SYSTEM_NSH=y +CONFIG_UART0_SERIAL_CONSOLE=y +CONFIG_USER_ENTRYPOINT="nsh_main" diff --git a/boards/xtensa/esp32/esp32-wrover-kit/src/esp32_bringup.c b/boards/xtensa/esp32/esp32-wrover-kit/src/esp32_bringup.c index b7517d225d..2a6152b645 100644 --- a/boards/xtensa/esp32/esp32-wrover-kit/src/esp32_bringup.c +++ b/boards/xtensa/esp32/esp32-wrover-kit/src/esp32_bringup.c @@ -94,6 +94,10 @@ # include "esp32_rtc_lowerhalf.h" #endif +#ifdef CONFIG_LCD_BACKPACK +# include "esp32_lcd_backpack.h" +#endif + #include "esp32-wrover-kit.h" /**************************************************************************** @@ -148,6 +152,17 @@ int esp32_bringup(void) } #endif +#ifdef CONFIG_LCD_BACKPACK + /* slcd:0, i2c:0, rows=2, cols=16 */ + + ret = board_lcd_backpack_init(0, 0, 2, 16); + if (ret < 0) + { + syslog(LOG_ERR, "Failed to initialize PCF8574 LCD, error %d\n", ret); + return ret; + } +#endif + #ifdef CONFIG_MMCSD ret = esp32_mmcsd_initialize(0); if (ret < 0)