/* Byte offset of config block. Will be ao_storage_block bytes long */
extern __xdata uint32_t ao_storage_config;
+/* Storage unit size - device reads and writes must be within blocks of this size. Usually 256 bytes. */
+extern __xdata uint16_t ao_storage_unit;
+
#define AO_STORAGE_ERASE_LOG (ao_storage_config + AO_CONFIG_MAX_SIZE)
/* Initialize above values. Can only be called once the OS is running */
void
ao_storage_setup(void);
-/* Flush any pending write data */
-void
-ao_storage_flush(void) __reentrant;
-
/* Write data. Returns 0 on failure, 1 on success */
uint8_t
ao_storage_write(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant;
/* Erase a block of storage. This always clears ao_storage_block bytes */
uint8_t
-ao_storage_erase(uint32_t pos);
+ao_storage_erase(uint32_t pos) __reentrant;
+
+/* Flush any pending writes to stable storage */
+void
+ao_storage_flush(void) __reentrant;
/* Initialize the storage code */
void
ao_storage_init(void);
+/*
+ * Low-level functions wrapped by ao_storage.c
+ */
+
+/* Read data within a storage unit */
+uint8_t
+ao_storage_device_read(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant;
+
+/* Write data within a storage unit */
+uint8_t
+ao_storage_device_write(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant;
+
+/* Initialize low-level device bits */
+void
+ao_storage_device_init(void);
+
+/* Print out information about flash chips */
+void
+ao_storage_device_info(void) __reentrant;
+
/*
* ao_log.c
*/
*/
extern __xdata uint16_t ao_flight_number;
-/* Retrieve first log record for the current flight */
-uint8_t
-ao_log_dump_first(void);
-
-/* return next log record for the current flight */
-uint8_t
-ao_log_dump_next(void);
-
/* Logging thread main routine */
void
ao_log(void);
void
ao_log_init(void);
+/* Write out the current flight number to the erase log */
+void
+ao_log_write_erase(uint8_t pos);
+
+/* Returns true if there are any logs stored in eeprom */
+uint8_t
+ao_log_present(void);
+
/*
* ao_flight.c
*/
*/
#define AO_CONFIG_MAJOR 1
-#define AO_CONFIG_MINOR 3
+#define AO_CONFIG_MINOR 4
struct ao_config {
uint8_t major;
uint8_t apogee_delay; /* minor version 1 */
int16_t accel_minus_g; /* minor version 2 */
uint32_t radio_cal; /* minor version 3 */
+ uint32_t flight_log_max; /* minor version 4 */
};
extern __xdata struct ao_config ao_config;