diff options
Diffstat (limited to 'ChibiOS_20.3.2/os/hal/src/hal_flash.c')
| -rw-r--r-- | ChibiOS_20.3.2/os/hal/src/hal_flash.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/ChibiOS_20.3.2/os/hal/src/hal_flash.c b/ChibiOS_20.3.2/os/hal/src/hal_flash.c new file mode 100644 index 0000000..f3e7a35 --- /dev/null +++ b/ChibiOS_20.3.2/os/hal/src/hal_flash.c @@ -0,0 +1,125 @@ +/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+ Licensed 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.
+*/
+
+/**
+ * @file hal_flash.c
+ * @brief Generic flash driver class code.
+ *
+ * @addtogroup HAL_FLASH
+ * @{
+ */
+
+#include "hal.h"
+
+#include "hal_flash.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Waits until the current erase operation is finished.
+ *
+ * @param[in] devp pointer to a @p BaseFlash object
+ *
+ * @return An error code.
+ * @retval FLASH_NO_ERROR if there is no erase operation in progress.
+ * @retval FLASH_ERROR_ERASE if the erase operation failed.
+ * @retval FLASH_ERROR_HW_FAILURE if access to the memory failed.
+ */
+flash_error_t flashWaitErase(BaseFlash *devp) {
+
+ while (true) {
+ flash_error_t err;
+ uint32_t msec;
+
+ /* Checking operation state.*/
+ err = flashQueryErase(devp, &msec);
+ if (err != FLASH_BUSY_ERASING) {
+ return err;
+ }
+
+ /* Interval because nice waiting.*/
+ osalThreadSleepMilliseconds(msec);
+ }
+}
+
+/**
+ * @brief Returns the offset of a sector.
+ *
+ * @param[in] devp pointer to a @p BaseFlash object
+ * @param[in] sector flash sector number
+ *
+ * @return the offset of the sector
+ */
+flash_offset_t flashGetSectorOffset(BaseFlash *devp,
+ flash_sector_t sector) {
+ flash_offset_t offset;
+ const flash_descriptor_t *descriptor = flashGetDescriptor(devp);
+
+ osalDbgAssert(sector < descriptor->sectors_count, "invalid sector");
+
+ if (descriptor->sectors != NULL) {
+ offset = descriptor->sectors[sector].offset;
+ }
+ else {
+ offset = (flash_offset_t)sector * (flash_offset_t)descriptor->sectors_size;
+ }
+
+ return offset;
+}
+
+/**
+ * @brief Returns the size of a sector.
+ *
+ * @param[in] devp pointer to a @p BaseFlash object
+ * @param[in] sector flash sector number
+ *
+ * @return the size of the sector
+ */
+uint32_t flashGetSectorSize(BaseFlash *devp,
+ flash_sector_t sector) {
+ uint32_t size;
+ const flash_descriptor_t *descriptor = flashGetDescriptor(devp);
+
+ osalDbgAssert(sector < descriptor->sectors_count, "invalid sector");
+
+ if (descriptor->sectors != NULL) {
+ size = descriptor->sectors[sector].size;
+ }
+ else {
+ size = descriptor->sectors_size;
+ }
+
+ return size;
+}
+/** @} */
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