From 48026bb824fd2d9cfb00ecd040db6ef3a416bae9 Mon Sep 17 00:00:00 2001
From: Clyne Sullivan <clyne@bitgloo.com>
Date: Fri, 22 Jan 2021 21:43:36 -0500
Subject: upload initial port

---
 ChibiOS_20.3.2/os/hal/src/hal_flash.c | 125 ++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 ChibiOS_20.3.2/os/hal/src/hal_flash.c

(limited to 'ChibiOS_20.3.2/os/hal/src/hal_flash.c')

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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