1 files changed, 144 insertions, 0 deletions

diff --git a/lib/chibios/os/hal/ports/STM32/STM32G0xx/hal_efl_lld.h b/lib/chibios/os/hal/ports/STM32/STM32G0xx/hal_efl_lld.h
new file mode 100644
index 000000000..1b647abd2
--- /dev/null
+++ b/lib/chibios/os/hal/ports/STM32/STM32G0xx/hal_efl_lld.h
@@ -0,0 +1,144 @@
+/*
+    ChibiOS - Copyright (C) 2006..2019 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_efl_lld.h
+ * @brief   STM32G07/8nxx Embedded Flash subsystem low level driver header.
+ *
+ * @addtogroup HAL_EFL
+ * @{
+ */
+
+#ifndef HAL_EFL_LLD_H
+#define HAL_EFL_LLD_H
+
+#if (HAL_USE_EFL == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    STM32G0xx configuration options
+ * @{
+ */
+/**
+ * @brief   Suggested wait time during erase operations polling.
+ */
+#if !defined(STM32_FLASH_WAIT_TIME_MS) || defined(__DOXYGEN__)
+#define STM32_FLASH_WAIT_TIME_MS            5
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+#if defined(STM32G070xx) || defined(STM32G071xx) ||                                                     \
+        defined(STM32G081xx) ||                                                                                                 \
+    defined(__DOXYGEN__)
+
+/* Flash size register. */
+#define STM32_FLASH_SIZE_REGISTER           0x1FFF75E0
+#define STM32_FLASH_SIZE_SCALE              1024U
+
+/*
+ * Flash size is organised as 32 or 64 x 2K pages.
+ *
+ */
+#define STM32_FLASH_SIZE_64K                64U
+#define STM32_FLASH_SIZE_128K               128U
+#define STM32_FLASH_SECTORS_TOTAL_64K       32
+#define STM32_FLASH_SECTORS_TOTAL_128K      64
+
+/* 64K flash.*/
+#define STM32_FLASH_SECTOR_SIZE_64K         ((STM32_FLASH_SIZE_64K         \
+                                             * STM32_FLASH_SIZE_SCALE)     \
+                                             / STM32_FLASH_SECTORS_TOTAL_64K)
+/* 128K flash.*/
+#define STM32_FLASH_SECTOR_SIZE_128K         ((STM32_FLASH_SIZE_128K        \
+                                             * STM32_FLASH_SIZE_SCALE)      \
+                                             / STM32_FLASH_SECTORS_TOTAL_128K)
+
+#else
+#error "This EFL driver does not support the selected device"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/* A flash size declaration. */
+typedef struct {
+  const flash_descriptor_t* desc;
+} efl_lld_size_t;
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level fields of the embedded flash driver structure.
+ */
+#define efl_lld_driver_fields                                               \
+  /* Flash registers.*/                                                     \
+  FLASH_TypeDef             *flash;                                         \
+  const flash_descriptor_t  *descriptor;
+
+/**
+ * @brief   Low level fields of the embedded flash configuration structure.
+ */
+#define efl_lld_config_fields                                               \
+  /* Dummy configuration, it is not needed.*/                               \
+  uint32_t                  dummy
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern EFlashDriver EFLD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void efl_lld_init(void);
+  void efl_lld_start(EFlashDriver *eflp);
+  void efl_lld_stop(EFlashDriver *eflp);
+  const flash_descriptor_t *efl_lld_get_descriptor(void *instance);
+  flash_error_t efl_lld_read(void *instance, flash_offset_t offset,
+                             size_t n, uint8_t *rp);
+  flash_error_t efl_lld_program(void *instance, flash_offset_t offset,
+                                size_t n, const uint8_t *pp);
+  flash_error_t efl_lld_start_erase_all(void *instance);
+  flash_error_t efl_lld_start_erase_sector(void *instance,
+                                           flash_sector_t sector);
+  flash_error_t efl_lld_query_erase(void *instance, uint32_t *msec);
+  flash_error_t efl_lld_verify_erase(void *instance, flash_sector_t sector);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EFL == TRUE */
+
+#endif /* HAL_EFL_LLD_H */
+
+/** @} */