From 716ca6063868c513f84b08d81364b8459ad72547 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 30 Oct 2013 18:11:54 -0600
Subject: [PATCH] Missing file that I forgot to add in the last commit
---
platform/mikroe-stm32f4/mikroe_configdata.c | 260 ++++++++++++++++++++
1 file changed, 260 insertions(+)
create mode 100644 platform/mikroe-stm32f4/mikroe_configdata.c
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 <pettitkd@gmail.com>
+ *
+ * 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 <nuttx/config.h>
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <apps/platform/configdata.h>
+
+#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 */