pios_streamfs.c File Reference

#include "pios.h"
#include "pios_flash.h"
#include "pios_streamfs_priv.h"
#include "pios_mutex.h"
#include "pios_semaphore.h"
#include "pios_thread.h"
#include <stdbool.h>
#include <stddef.h>
#include <pios_com.h>

Go to the source code of this file.

Data Structures
struct	streamfs_state
struct	streamfs_footer

Macros
#define	MIN(x, y)   ((x) < (y) ? (x) : (y))
#define	PIOS_STREAMFS_TASK_PRIORITY   PIOS_THREAD_PRIO_LOW
#define	PIOS_STREAMFS_TASK_STACK_BYTES   1000

Enumerations
enum	pios_flashfs_streamfs_dev_magic { PIOS_FLASHFS_STREAMFS_DEV_MAGIC = 0x93A40F82 }

Functions
static void	PIOS_STREAMFS_RegisterTxCallback (uintptr_t fs_id, pios_com_callback tx_out_cb, uintptr_t context)
static void	PIOS_STREAMFS_TxStart (uintptr_t fs_id, uint16_t tx_bytes_avail)
static uintptr_t	streamfs_get_addr (const struct streamfs_state *streamfs, uint32_t arena_id, uint16_t arena_offset)
	Return the offset in flash of a particular slot within an arena. More...
enum arena_state	__attribute__ ((packed))
static int32_t	streamfs_erase_arena (const struct streamfs_state *streamfs, uint32_t arena_id)
	Erases all sectors within the given arena and sets arena to erased state. More...
static int32_t	streamfs_erase_all_arenas (const struct streamfs_state *streamfs)
	Erases all arenas available to this filesystem instance. More...
static bool	streamfs_validate (const struct streamfs_state *streamfs)
static struct streamfs_state *	streamfs_alloc (void)
static int32_t	streamfs_new_sector (struct streamfs_state *streamfs)
static int32_t	streamfs_close_sector (struct streamfs_state *streamfs)
static int32_t	streamfs_find_first_arena (struct streamfs_state *streamfs, int32_t file_id)
static int32_t	streamfs_find_last_arena (struct streamfs_state *streamfs, int32_t file_id)
static int32_t	streamfs_find_new_sector (struct streamfs_state *streamfs)
static int32_t	streamfs_append_to_file (struct streamfs_state *streamfs, uint8_t *data, uint32_t len)
static int32_t	streamfs_read_from_file (struct streamfs_state *streamfs, uint8_t *data, uint32_t len)
static int32_t	streamfs_scan_filesystem (struct streamfs_state *streamfs)
static void	PIOS_STREAMFS_Task (void *parameters)
int32_t	PIOS_STREAMFS_Init (uintptr_t *fs_id, const struct streamfs_cfg *cfg, enum pios_flash_partition_labels partition_label)
	Initialize the flash object setting FS. More...
int32_t	PIOS_STREAMFS_Format (uintptr_t fs_id)
	Erases all filesystem arenas and activate the first arena. More...
int32_t	PIOS_STREAMFS_OpenWrite (uintptr_t fs_id)
int32_t	PIOS_STREAMFS_OpenRead (uintptr_t fs_id, uint32_t file_id)
int32_t	PIOS_STREAMFS_MinFileId (uintptr_t fs_id)
int32_t	PIOS_STREAMFS_MaxFileId (uintptr_t fs_id)
int32_t	PIOS_STREAMFS_Close (uintptr_t fs_id)
int32_t	PIOS_STREAMFS_Read (uintptr_t fs_id, uint8_t *data, uint32_t len)
int32_t	PIOS_STREAMFS_Testing_Write (uintptr_t fs_id, uint8_t *data, uint32_t len)

Variables
const struct pios_com_driver	pios_streamfs_com_driver
uint32_t	magic
uint32_t	written_bytes
uint32_t	file_id
uint16_t	file_segment

Variable Documentation

uint32_t file_id

Definition at line 121 of file pios_streamfs.c.

uint16_t file_segment

Definition at line 122 of file pios_streamfs.c.

uint32_t magic

Definition at line 119 of file pios_streamfs.c.

uint32_t written_bytes

Definition at line 120 of file pios_streamfs.c.