diff --git a/platform/mikroe-stm32f4/mikroe_configdata.c b/platform/mikroe-stm32f4/mikroe_configdata.c new file mode 100644 index 000000000..5147a95c9 --- /dev/null +++ b/platform/mikroe-stm32f4/mikroe_configdata.c @@ -0,0 +1,260 @@ +/************************************************************************************ + * apps/platform/mikroe-stm32f4/mikroe_configdata.c + * + * Copyright (C) 2012-2013 Ken Pettit. All rights reserved. + * Author: Ken Pettit + * + * 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 + +#ifdef CONFIG_PLATFORM_CONFIGDATA + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/************************************************************************************ + * Private Types + ************************************************************************************/ + +/************************************************************************************ + * Private Function Prototypes + ************************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/**************************************************************************** + * Name: platform_setconfig + * + * Description: + * Save platform-specific configuration data + * + * Input Parameter: + * id - Defines the class of configuration data + * instance - Defines which instance of configuration data. For example, + * if a board has two networks, then there would be two MAC + * addresses: instance 0 and instance 1 + * configdata - The new configuration data to be saved + * datalen - The size of the configuration data in bytes. + * + * Returned Value: + * This is an end-user function, so it follows the normal convention: + * Returns the OK (zero) on success. On failure, it.returns -1 (ERROR) and + * sets errno appropriately. + * + * Values for the errno would include: + * + * EINVAL - The configdata point is invalid + * ENOSYS - The request ID/instance is not supported on this platform + * + * Other errors may be returned from lower level drivers on failure to + * write to the underlying media (if applicable) + * + ****************************************************************************/ + +int platform_setconfig(enum config_data_e id, int instance, + FAR const uint8_t *configdata, size_t datalen) +{ +#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS + FILE* fd; +#endif + + switch (id) + { + case CONFIGDATA_TSCALIBRATION: + +#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS + /* Save config data in a file on the filesystem. Try to open + * the file. */ + + if ((fd = fopen(CONFIG_MIKROE_STM32F4_CONFIGDATA_FILENAME, "w+")) == NULL) + { + /* Error opening the file */ + set_errno(ENOENT); + return -1; + } + + /* Write data to the file. For now, we only support one entry, but + * may / will expand it later. + */ + + fwrite(&id, sizeof(id), 1, fd); + fwrite(&instance, sizeof(instance), 1, fd); + fwrite(configdata, 1, datalen, fd); + + /* CLose the file and exit */ + + fclose(fd); + return OK; + +#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_PART +# error This configuration not supported yet! +#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM + + /* We are reading from a read-only system, so nothing to do. */ + + return OK; + +#else + break; +#endif + + default: + break; + } + + set_errno(ENOSYS); + return -1; +} + +/**************************************************************************** + * Name: platform_getconfig + * + * Description: + * Get platform-specific configuration data + * + * Input Parameter: + * id - Defines the class of configuration data + * instance - Defines which instance of configuration data. For example, + * if a board has two networks, then there would be two MAC + * addresses: instance 0 and instance 1 + * configdata - The new configuration data to be saved + * datalen - The size of the configuration data in bytes. + * + * Returned Value: + * This is an end-user function, so it follows the normal convention: + * Returns the OK (zero) on success. On failure, it.returns -1 (ERROR) and + * sets errno appropriately. + * + * Values for the errno would include: + * + * EINVAL - The configdata point is invalid + * ENOSYS - The request ID/instance is not supported on this platform + * + * Other errors may be returned from lower level drivers on failure to + * write to the underlying media (if applicable) + * + ****************************************************************************/ + +int platform_getconfig(enum config_data_e id, int instance, + FAR uint8_t *configdata, size_t datalen) +{ +#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS + FILE* fd; + size_t bytes; + enum config_data_e saved_id; + int saved_instance; +#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM + static const uint8_t touch_cal_data[] = { + 0x9a, 0x2f, 0x00, 0x00, + 0x40, 0xbc, 0x69, 0xfe, 0x70, 0x2e, 0x00, + 0x00, 0xb8, 0x2d, 0xdb, 0xff }; +#endif + + switch (id) + { + case CONFIGDATA_TSCALIBRATION: + +#ifdef CONFIG_MIKROE_STM32F4_CONFIGDATA_FS + /* Load config data fram a file on the filesystem. Try to open + * the file. */ + + if ((fd = fopen(CONFIG_MIKROE_STM32F4_CONFIGDATA_FILENAME, "r")) == NULL) + { + /* Error opening the file */ + set_errno(ENOENT); + return -1; + } + + /* Write data to the file. For now, we only support one entry, but + * may / will expand it later. + */ + + bytes = fread(&saved_id, sizeof(saved_id), 1, fd); + bytes += fread(&saved_instance, sizeof(saved_instance), 1, fd); + bytes += fread(configdata, 1, datalen, fd); + if (bytes != sizeof(saved_id) + sizeof(saved_instance) + datalen) + { + /* Error! Not enough data in the file */ + set_errno(EINVAL); + fclose(fd); + return -1; + } + + /* Close the file and exit */ + + fclose(fd); + return OK; + + /* Save config data in a file on the filesystem */ + + return OK; + +#elif CONFIG_MIKROE_STM32F4_CONFIGDATA_ROM + + memcpy(configdata, touch_cal_data, datalen); + return OK; + +#else + break; +#endif + + default: + break; + } + + set_errno(ENOSYS); + return -1; +} + +#endif /* CONFIG_PLATFORM_CONFIGDATA */