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-rw-r--r--os/ex/subsystems/mfs/mfs.h678
1 files changed, 339 insertions, 339 deletions
diff --git a/os/ex/subsystems/mfs/mfs.h b/os/ex/subsystems/mfs/mfs.h
index ec5719738..89d6b9958 100644
--- a/os/ex/subsystems/mfs/mfs.h
+++ b/os/ex/subsystems/mfs/mfs.h
@@ -1,339 +1,339 @@
-/*
- Managed Flash Storage - Copyright (C) 2016 Giovanni Di Sirio
-
- This file is part of ChibiOS.
-
- ChibiOS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file mfs.h
- * @brief Managed Flash Storage module header.
- *
- * @{
- */
-
-#ifndef MFS_H
-#define MFS_H
-
-#include "hal_flash.h"
-
-/*===========================================================================*/
-/* Driver constants. */
-/*===========================================================================*/
-
-#define MFS_BANK_MAGIC_1 0xEC705ADEU
-#define MFS_BANK_MAGIC_2 0xF0339CC5U
-#define MFS_HEADER_MAGIC 0x5FAEU
-
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @name Configuration options
- * @{
- */
-/**
- * @brief Record identifiers cache size.
- * @details Cache trades RAM for a faster access to stored records. If zero
- * then the cache is disabled.
- */
-#if !defined(MFS_CFG_ID_CACHE_SIZE) || defined(__DOXIGEN__)
-#define MFS_CFG_ID_CACHE_SIZE 16
-#endif
-
-/**
- * @brief Maximum number of repair attempts on partition mount.
- */
-#if !defined(MFS_CFG_MAX_REPAIR_ATTEMPTS) || defined(__DOXIGEN__)
-#define MFS_CFG_MAX_REPAIR_ATTEMPTS 3
-#endif
-
-/**
- * @brief Verify written data.
- */
-#if !defined(MFS_CFG_WRITE_VERIFY) || defined(__DOXIGEN__)
-#define MFS_CFG_WRITE_VERIFY TRUE
-#endif
-/** @} */
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-#if MFS_CFG_ID_CACHE_SIZE < 0
-#error "invalid MFS_CFG_ID_CACHE_SIZE value"
-#endif
-
-#if (MFS_CFG_MAX_REPAIR_ATTEMPTS < 1) || (MFS_CFG_MAX_REPAIR_ATTEMPTS > 10)
-#error "invalid MFS_MAX_REPAIR_ATTEMPTS value"
-#endif
-
-/*===========================================================================*/
-/* Driver data structures and types. */
-/*===========================================================================*/
-
-/**
- * @brief Type of a flash bank.
- */
-typedef enum {
- MFS_BANK_0 = 0,
- MFS_BANK_1 = 1
-} mfs_bank_t;
-
-/**
- * @brief Type of driver state machine states.
- */
-typedef enum {
- MFS_UNINIT = 0,
- MFS_STOP = 1,
- MFS_READY = 2,
- MFS_MOUNTED = 3,
- MFS_ACTIVE = 4
-} mfs_state_t;
-
-/**
- * @brief Type of an MFS error code.
- * @note Errors are negative integers, informative warnings are positive
- * integers.
- */
-typedef enum {
- MFS_NO_ERROR = 0,
- MFS_REPAIR_WARNING = 1,
- MFS_GC_WARNING = 2,
- MFS_ID_NOT_FOUND = -1,
- MFS_CRC_ERROR = -2,
- MFS_FLASH_FAILURE = -3,
- MFS_INTERNAL_ERROR = -4
-} mfs_error_t;
-
-/**
- * @brief Type of a bank state assessment.
- */
-typedef enum {
- MFS_BANK_ERASED = 0,
- MFS_BANK_OK = 1,
- MFS_BANK_PARTIAL = 2,
- MFS_BANK_GARBAGE = 3
-} mfs_bank_state_t;
-
-/**
- * @brief Type of a bank header.
- * @note The header resides in the first 16 bytes of a bank extending
- * to the next page boundary.
- */
-typedef struct {
- /**
- * @brief Bank magic 1.
- */
- uint32_t magic1;
- /**
- * @brief Bank magic 2.
- */
- uint32_t magic2;
- /**
- * @brief Usage counter of the bank.
- * @details This value is increased each time a bank swap is performed. It
- * indicates how much wearing the flash has already endured.
- */
- uint32_t counter;
- /**
- * @brief First data element.
- */
- flash_offset_t next;
- /**
- * @brief Header CRC.
- */
- uint16_t crc;
-} mfs_bank_header_t;
-
-/**
- * @brief Type of a data block header.
- * @details This structure is placed before each written data block.
- */
-typedef struct {
- /**
- * @brief Data header magic.
- */
- uint16_t magic;
- /**
- * @brief Data CRC.
- */
- uint16_t crc;
- /**
- * @brief Data identifier.
- */
- uint32_t id;
- /**
- * @brief Data size for forward scan.
- */
- uint32_t size;
- /**
- * @brief Address of the previous header or zero if none.
- */
- flash_offset_t prev_header;
-} mfs_data_header_t;
-
-#if (MFS_CFG_ID_CACHE_SIZE > 0) || defined(__DOXYGEN__)
-/**
- * @brief Type of an element of the record identifiers cache.
- */
-typedef struct mfs_cached_id {
- /**
- * @brief Pointer to the next element in the list.
- */
- struct mfs_cached_id *lru_next;
- /**
- * @brief Pointer to the previous element in the list.
- */
- struct mfs_cached_id *lru_prev;
- /**
- * @brief Identifier of the cached element.
- */
- uint32_t id;
- /**
- * @brief Data address of the cached element.
- */
- flash_offset_t offset;
- /**
- * @brief Data size of the cached element.
- */
- uint32_t size;
-} mfs_cached_id_t;
-
-/**
- * @brief Type of an element of the record identifiers cache.
- */
-typedef struct mfs_cache_header {
- /**
- * @brief Pointer to the first element in the list.
- */
- struct mfs_cached_id *lru_next;
- /**
- * @brief Pointer to the last element in the list.
- */
- struct mfs_cached_id *lru_prev;
-} mfs_cache_header_t;
-#endif /* MFS_CFG_ID_CACHE_SIZE > 0 */
-
-/**
- * @brief Type of a MFS configuration structure.
- */
-typedef struct {
- /**
- * @brief Flash driver associated to this MFS instance.
- */
- BaseFlash *flashp;
- /**
- * @brief Base sector index for bank 0.
- */
- flash_sector_t bank0_start;
- /**
- * #brief Number of sectors for bank 0.
- */
- flash_sector_t bank0_sectors;
- /**
- * @brief Base sector index for bank 1.
- */
- flash_sector_t bank1_start;
- /**
- * #brief Number of sectors for bank 1.
- */
- flash_sector_t bank1_sectors;
-} MFSConfig;
-
-/**
- * @extends BaseFlash
- *
- * @brief Type of an MFS instance.
- */
-typedef struct {
- /**
- * @brief Driver state.
- */
- mfs_state_t state;
- /**
- * @brief Current configuration data.
- */
- const MFSConfig *config;
- /**
- * @brief Bank currently in use.
- */
- mfs_bank_t current_bank;
- /**
- * @brief Size in bytes of banks.
- */
- uint32_t banks_size;
- /**
- * @brief Pointer to the next free position in the current bank.
- */
- flash_offset_t next_offset;
- /**
- * @brief Pointer to the last header in the list or zero.
- */
- flash_offset_t last_offset;
- /**
- * @brief Used space in the current bank without considering erased records.
- */
- uint32_t used_space;
-#if (MFS_CFG_ID_CACHE_SIZE > 0) || defined(__DOXYGEN__)
- /**
- * @brief Header of the cache LRU list.
- */
- mfs_cache_header_t cache_header;
- /**
- * @brief Array of the cached identifiers.
- */
- mfs_cached_id_t cache_buffer[MFS_CFG_ID_CACHE_SIZE];
-#endif /* MFS_CFG_ID_CACHE_SIZE > 0 */
-} MFSDriver;
-
-/*===========================================================================*/
-/* Driver macros. */
-/*===========================================================================*/
-
-/**
- * @name Error codes handling macros
- * @{
- */
-#define MFS_IS_ERROR(err) ((err) < MFS_NO_ERROR)
-#define MFS_IS_WARNING(err) ((err) > MFS_NO_ERROR)
-/** @} */
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void mfsObjectInit(MFSDriver *devp);
- void mfsStart(MFSDriver *devp, const MFSConfig *config);
- void mfsStop(MFSDriver *devp);
- mfs_error_t mfsMount(MFSDriver *devp);
- mfs_error_t mfsUnmount(MFSDriver *devp);
- mfs_error_t mfsReadRecord(MFSDriver *devp, uint32_t id,
- uint32_t *np, uint8_t *buffer);
- mfs_error_t mfsUpdateRecord(MFSDriver *devp, uint32_t id,
- uint32_t n, const uint8_t *buffer);
- mfs_error_t mfsEraseRecord(MFSDriver *devp, uint32_t id);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* MFS_H */
-
-/** @} */
-
+/*
+ Managed Flash Storage - Copyright (C) 2016 Giovanni Di Sirio
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file mfs.h
+ * @brief Managed Flash Storage module header.
+ *
+ * @{
+ */
+
+#ifndef MFS_H
+#define MFS_H
+
+#include "hal_flash.h"
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+#define MFS_BANK_MAGIC_1 0xEC705ADEU
+#define MFS_BANK_MAGIC_2 0xF0339CC5U
+#define MFS_HEADER_MAGIC 0x5FAEU
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief Record identifiers cache size.
+ * @details Cache trades RAM for a faster access to stored records. If zero
+ * then the cache is disabled.
+ */
+#if !defined(MFS_CFG_ID_CACHE_SIZE) || defined(__DOXIGEN__)
+#define MFS_CFG_ID_CACHE_SIZE 16
+#endif
+
+/**
+ * @brief Maximum number of repair attempts on partition mount.
+ */
+#if !defined(MFS_CFG_MAX_REPAIR_ATTEMPTS) || defined(__DOXIGEN__)
+#define MFS_CFG_MAX_REPAIR_ATTEMPTS 3
+#endif
+
+/**
+ * @brief Verify written data.
+ */
+#if !defined(MFS_CFG_WRITE_VERIFY) || defined(__DOXIGEN__)
+#define MFS_CFG_WRITE_VERIFY TRUE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if MFS_CFG_ID_CACHE_SIZE < 0
+#error "invalid MFS_CFG_ID_CACHE_SIZE value"
+#endif
+
+#if (MFS_CFG_MAX_REPAIR_ATTEMPTS < 1) || (MFS_CFG_MAX_REPAIR_ATTEMPTS > 10)
+#error "invalid MFS_MAX_REPAIR_ATTEMPTS value"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of a flash bank.
+ */
+typedef enum {
+ MFS_BANK_0 = 0,
+ MFS_BANK_1 = 1
+} mfs_bank_t;
+
+/**
+ * @brief Type of driver state machine states.
+ */
+typedef enum {
+ MFS_UNINIT = 0,
+ MFS_STOP = 1,
+ MFS_READY = 2,
+ MFS_MOUNTED = 3,
+ MFS_ACTIVE = 4
+} mfs_state_t;
+
+/**
+ * @brief Type of an MFS error code.
+ * @note Errors are negative integers, informative warnings are positive
+ * integers.
+ */
+typedef enum {
+ MFS_NO_ERROR = 0,
+ MFS_REPAIR_WARNING = 1,
+ MFS_GC_WARNING = 2,
+ MFS_ID_NOT_FOUND = -1,
+ MFS_CRC_ERROR = -2,
+ MFS_FLASH_FAILURE = -3,
+ MFS_INTERNAL_ERROR = -4
+} mfs_error_t;
+
+/**
+ * @brief Type of a bank state assessment.
+ */
+typedef enum {
+ MFS_BANK_ERASED = 0,
+ MFS_BANK_OK = 1,
+ MFS_BANK_PARTIAL = 2,
+ MFS_BANK_GARBAGE = 3
+} mfs_bank_state_t;
+
+/**
+ * @brief Type of a bank header.
+ * @note The header resides in the first 16 bytes of a bank extending
+ * to the next page boundary.
+ */
+typedef struct {
+ /**
+ * @brief Bank magic 1.
+ */
+ uint32_t magic1;
+ /**
+ * @brief Bank magic 2.
+ */
+ uint32_t magic2;
+ /**
+ * @brief Usage counter of the bank.
+ * @details This value is increased each time a bank swap is performed. It
+ * indicates how much wearing the flash has already endured.
+ */
+ uint32_t counter;
+ /**
+ * @brief First data element.
+ */
+ flash_offset_t next;
+ /**
+ * @brief Header CRC.
+ */
+ uint16_t crc;
+} mfs_bank_header_t;
+
+/**
+ * @brief Type of a data block header.
+ * @details This structure is placed before each written data block.
+ */
+typedef struct {
+ /**
+ * @brief Data header magic.
+ */
+ uint16_t magic;
+ /**
+ * @brief Data CRC.
+ */
+ uint16_t crc;
+ /**
+ * @brief Data identifier.
+ */
+ uint32_t id;
+ /**
+ * @brief Data size for forward scan.
+ */
+ uint32_t size;
+ /**
+ * @brief Address of the previous header or zero if none.
+ */
+ flash_offset_t prev_header;
+} mfs_data_header_t;
+
+#if (MFS_CFG_ID_CACHE_SIZE > 0) || defined(__DOXYGEN__)
+/**
+ * @brief Type of an element of the record identifiers cache.
+ */
+typedef struct mfs_cached_id {
+ /**
+ * @brief Pointer to the next element in the list.
+ */
+ struct mfs_cached_id *lru_next;
+ /**
+ * @brief Pointer to the previous element in the list.
+ */
+ struct mfs_cached_id *lru_prev;
+ /**
+ * @brief Identifier of the cached element.
+ */
+ uint32_t id;
+ /**
+ * @brief Data address of the cached element.
+ */
+ flash_offset_t offset;
+ /**
+ * @brief Data size of the cached element.
+ */
+ uint32_t size;
+} mfs_cached_id_t;
+
+/**
+ * @brief Type of an element of the record identifiers cache.
+ */
+typedef struct mfs_cache_header {
+ /**
+ * @brief Pointer to the first element in the list.
+ */
+ struct mfs_cached_id *lru_next;
+ /**
+ * @brief Pointer to the last element in the list.
+ */
+ struct mfs_cached_id *lru_prev;
+} mfs_cache_header_t;
+#endif /* MFS_CFG_ID_CACHE_SIZE > 0 */
+
+/**
+ * @brief Type of a MFS configuration structure.
+ */
+typedef struct {
+ /**
+ * @brief Flash driver associated to this MFS instance.
+ */
+ BaseFlash *flashp;
+ /**
+ * @brief Base sector index for bank 0.
+ */
+ flash_sector_t bank0_start;
+ /**
+ * #brief Number of sectors for bank 0.
+ */
+ flash_sector_t bank0_sectors;
+ /**
+ * @brief Base sector index for bank 1.
+ */
+ flash_sector_t bank1_start;
+ /**
+ * #brief Number of sectors for bank 1.
+ */
+ flash_sector_t bank1_sectors;
+} MFSConfig;
+
+/**
+ * @extends BaseFlash
+ *
+ * @brief Type of an MFS instance.
+ */
+typedef struct {
+ /**
+ * @brief Driver state.
+ */
+ mfs_state_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const MFSConfig *config;
+ /**
+ * @brief Bank currently in use.
+ */
+ mfs_bank_t current_bank;
+ /**
+ * @brief Size in bytes of banks.
+ */
+ uint32_t banks_size;
+ /**
+ * @brief Pointer to the next free position in the current bank.
+ */
+ flash_offset_t next_offset;
+ /**
+ * @brief Pointer to the last header in the list or zero.
+ */
+ flash_offset_t last_offset;
+ /**
+ * @brief Used space in the current bank without considering erased records.
+ */
+ uint32_t used_space;
+#if (MFS_CFG_ID_CACHE_SIZE > 0) || defined(__DOXYGEN__)
+ /**
+ * @brief Header of the cache LRU list.
+ */
+ mfs_cache_header_t cache_header;
+ /**
+ * @brief Array of the cached identifiers.
+ */
+ mfs_cached_id_t cache_buffer[MFS_CFG_ID_CACHE_SIZE];
+#endif /* MFS_CFG_ID_CACHE_SIZE > 0 */
+} MFSDriver;
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @name Error codes handling macros
+ * @{
+ */
+#define MFS_IS_ERROR(err) ((err) < MFS_NO_ERROR)
+#define MFS_IS_WARNING(err) ((err) > MFS_NO_ERROR)
+/** @} */
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void mfsObjectInit(MFSDriver *devp);
+ void mfsStart(MFSDriver *devp, const MFSConfig *config);
+ void mfsStop(MFSDriver *devp);
+ mfs_error_t mfsMount(MFSDriver *devp);
+ mfs_error_t mfsUnmount(MFSDriver *devp);
+ mfs_error_t mfsReadRecord(MFSDriver *devp, uint32_t id,
+ uint32_t *np, uint8_t *buffer);
+ mfs_error_t mfsUpdateRecord(MFSDriver *devp, uint32_t id,
+ uint32_t n, const uint8_t *buffer);
+ mfs_error_t mfsEraseRecord(MFSDriver *devp, uint32_t id);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MFS_H */
+
+/** @} */
+