NVRAM refactor, phase 1. (#18969)

* Rename `eeprom_stm32` to `eeprom_legacy_emulated_flash`.

* Rename `flash_stm32` to `legacy_flash_ops`.

* Rename `eeprom_teensy` to `eeprom_kinetis_flexram`.

1 files changed, 44 insertions, 0 deletions

diff --git a/platforms/chibios/drivers/flash/legacy_flash_ops.h b/platforms/chibios/drivers/flash/legacy_flash_ops.h
new file mode 100644
index 0000000000..ef80764055
--- /dev/null
+++ b/platforms/chibios/drivers/flash/legacy_flash_ops.h
@@ -0,0 +1,44 @@
+/*
+ * This software is experimental and a work in progress.
+ * Under no circumstances should these files be used in relation to any critical system(s).
+ * Use of these files is at your own risk.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * This files are free to use from https://github.com/rogerclarkmelbourne/Arduino_STM32 and
+ * https://github.com/leaflabs/libmaple
+ *
+ * Modifications for QMK and STM32F303 by Yiancar
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#ifdef LEGACY_FLASH_OPS_MOCKED
+extern uint8_t FlashBuf[MOCK_FLASH_SIZE];
+#endif
+
+typedef enum { FLASH_BUSY = 1, FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_ERROR_OPT, FLASH_COMPLETE, FLASH_TIMEOUT, FLASH_BAD_ADDRESS } FLASH_Status;
+
+#define IS_FLASH_ADDRESS(ADDRESS) (((ADDRESS) >= 0x08000000) && ((ADDRESS) < 0x0807FFFF))
+
+FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout);
+FLASH_Status FLASH_ErasePage(uint32_t Page_Address);
+FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data);
+
+void FLASH_Unlock(void);
+void FLASH_Lock(void);
+
+#ifdef __cplusplus
+}
+#endif