diff --git a/configs/flipnclick-sam3x/README.txt b/configs/flipnclick-sam3x/README.txt index 38358f21875..9ceb0e74d09 100644 --- a/configs/flipnclick-sam3x/README.txt +++ b/configs/flipnclick-sam3x/README.txt @@ -38,8 +38,6 @@ STATUS And it says that the content of the FLASH is not good. - - Buttons and LEDs ================ @@ -496,5 +494,5 @@ Configuration sub-directories Binary Formats: CONFIG_BUILTIN=y : Enable support for built-in programs - Applicaton Configuration: + Application Configuration: CONFIG_NSH_BUILTIN_APPS=y : Enable starting apps from NSH command line diff --git a/configs/stm32f103-minimum/src/stm32_at24.c b/configs/stm32f103-minimum/src/stm32_at24.c new file mode 100644 index 00000000000..9dca10cf15e --- /dev/null +++ b/configs/stm32f103-minimum/src/stm32_at24.c @@ -0,0 +1,146 @@ +/**************************************************************************** + * config/stm32f103-minimum/src/stm32_at24.c + * + * Copyright (C) 2018 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include "stm32_i2c.h" +#include "stm32f103_minimum.h" + +#ifdef HAVE_AT24 + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: stm32_at24_automount + * + * Description: + * Initialize and configure the AT24 serial EEPROM + * + ****************************************************************************/ + +int stm32_at24_automount(int minor) +{ + FAR struct i2c_master_s *i2c; + FAR struct mtd_dev_s *mtd; + static bool initialized = false; + int ret; + + /* Have we already initialized? */ + + if (!initialized) + { + /* No.. Get the I2C bus driver */ + + finfo("Initialize I2C%d\n", AT24_I2C_BUS); + i2c = stm32_i2cbus_initialize(AT24_I2C_BUS); + if (!i2c) + { + ferr("ERROR: Failed to initialize I2C%d\n", AT24_I2C_BUS); + return -ENODEV; + } + + /* Now bind the I2C interface to the AT24 I2C EEPROM driver */ + + finfo("Bind the AT24 EEPROM driver to I2C%d\n", AT24_I2C_BUS); + mtd = at24c_initialize(i2c); + if (!mtd) + { + ferr("ERROR: Failed to bind TWI%d to the AT24 EEPROM driver\n", + AT24_I2C_BUS); + return -ENODEV; + } + +#if defined(CONFIG_STM32F103MINIMUM_AT24_FTL) + /* And finally, use the FTL layer to wrap the MTD driver as a block driver */ + + finfo("Initialize the FTL layer to create /dev/mtdblock%d\n", AT24_MINOR); + ret = ftl_initialize(AT24_MINOR, mtd); + if (ret < 0) + { + ferr("ERROR: Failed to initialize the FTL layer: %d\n", ret); + return ret; + } + +#elif defined(CONFIG_STM32F103MINIMUM_AT24_NXFFS) + /* Initialize to provide NXFFS on the MTD interface */ + + finfo("Initialize the NXFFS file system\n"); + ret = nxffs_initialize(mtd); + if (ret < 0) + { + ferr("ERROR: NXFFS initialization failed: %d\n", ret); + return ret; + } + + /* Mount the file system at /mnt/at24 */ + + finfo("Mount the NXFFS file system at /dev/at24\n"); + ret = mount(NULL, "/mnt/at24", "nxffs", 0, NULL); + if (ret < 0) + { + ferr("ERROR: Failed to mount the NXFFS volume: %d\n", errno); + return ret; + } +#endif + /* Now we are initializeed */ + + initialized = true; + } + + return OK; +} + +#endif /* HAVE_AT24 */