diff --git a/boards/arm/stm32f0l0g0/common/include/stm32_ssd1306.h b/boards/arm/stm32f0l0g0/common/include/stm32_ssd1306.h new file mode 100644 index 00000000000..b9c50a62cbf --- /dev/null +++ b/boards/arm/stm32f0l0g0/common/include/stm32_ssd1306.h @@ -0,0 +1,80 @@ +/**************************************************************************** + * boards/arm/stm32f0l0g0/common/include/stm32_ssd1306.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 __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_STM32_SSD1306_H +#define __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_STM32_SSD1306_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Name: board_ssd1306_initialize + * + * Description: + * Initialize and register the device + * + * Input Parameters: + * busno - The I2C or SPI bus number + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ + +int board_ssd1306_initialize(int busno); + +/**************************************************************************** + * Name: board_ssd1306_getdev + * + * Description: + * Get the SSD1306 device driver instance + * + * Returned Value: + * Pointer to the instance + * + ****************************************************************************/ + +struct lcd_dev_s *board_ssd1306_getdev(void); + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_STM32_SSD1306_H */ diff --git a/boards/arm/stm32f0l0g0/common/src/Make.defs b/boards/arm/stm32f0l0g0/common/src/Make.defs index c63421bd7ec..f71dddf4b31 100644 --- a/boards/arm/stm32f0l0g0/common/src/Make.defs +++ b/boards/arm/stm32f0l0g0/common/src/Make.defs @@ -20,6 +20,10 @@ ifeq ($(CONFIG_ARCH_BOARD_COMMON),y) +ifeq ($(CONFIG_LCD_SSD1306),y) + CSRCS += stm32_ssd1306.c +endif + DEPPATH += --dep-path src VPATH += :src CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src) diff --git a/boards/arm/stm32f0l0g0/common/src/stm32_ssd1306.c b/boards/arm/stm32f0l0g0/common/src/stm32_ssd1306.c new file mode 100644 index 00000000000..6a58c99b790 --- /dev/null +++ b/boards/arm/stm32f0l0g0/common/src/stm32_ssd1306.c @@ -0,0 +1,161 @@ +/**************************************************************************** + * boards/arm/stm32f0l0g0/common/src/stm32_ssd1306.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 "stm32_i2c.h" +#include "stm32_spi.h" + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static struct lcd_dev_s *g_lcddev; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: board_ssd1306_initialize + * + * Description: + * Initialize and register the device. I2C version. + * + * Input Parameters: + * busno - The I2C bus number + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ +#ifdef CONFIG_LCD_SSD1306_I2C +int board_ssd1306_initialize(int busno) +{ + struct i2c_master_s *i2c; + const int devno = 0; + + /* Initialize I2C */ + + i2c = stm32_i2cbus_initialize(busno); + if (!i2c) + { + lcderr("ERROR: Failed to initialize I2C port %d\n", busno); + return -ENODEV; + } + + /* Bind the I2C port to the OLED */ + + g_lcddev = ssd1306_initialize(i2c, NULL, devno); + if (!g_lcddev) + { + lcderr("ERROR: Failed to bind I2C port %d to OLED %d\n", busno, devno); + return -ENODEV; + } + else + { + lcdinfo("Bound I2C port %d to OLED %d\n", busno, devno); + + /* And turn the OLED on */ + + g_lcddev->setpower(g_lcddev, CONFIG_LCD_MAXPOWER); + return OK; + } +} +#endif + +/**************************************************************************** + * Name: board_ssd1306_initialize + * + * Description: + * Initialize and register the device. SPI version. + * + * Input Parameters: + * busno - The SPI bus number + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ +#ifdef CONFIG_LCD_SSD1306_SPI +int board_ssd1306_initialize(int busno) +{ + struct spi_dev_s *spi; + const int devno = 0; + + /* Initialize SPI */ + + spi = stm32_spibus_initialize(busno); + if (!spi) + { + lcderr("ERROR: Failed to initialize SPI port %d\n", busno); + return -ENODEV; + } + + /* Bind the SPI port to the OLED */ + + g_lcddev = ssd1306_initialize(spi, NULL, devno); + if (!g_lcddev) + { + lcderr("ERROR: Failed to bind SPI port %d to OLED %d\n", busno, devno); + return -ENODEV; + } + else + { + lcdinfo("Bound SPI port %d to OLED %d\n", busno, devno); + + /* And turn the OLED on */ + + g_lcddev->setpower(g_lcddev, CONFIG_LCD_MAXPOWER); + + ssd1306_fill(g_lcddev, 0xff); + + return OK; + } +} +#endif + +/**************************************************************************** + * Name: board_ssd1306_getdev + * + * Description: + * Get the SSD1306 device driver instance + * + * Returned Value: + * Pointer to the instance + * + ****************************************************************************/ + +struct lcd_dev_s *board_ssd1306_getdev(void) +{ + return g_lcddev; +}