diff options
Diffstat (limited to 'src/ao.h')
| -rw-r--r-- | src/ao.h | 44 |
1 files changed, 20 insertions, 24 deletions
@@ -430,42 +430,38 @@ void ao_mutex_put(__xdata uint8_t *ao_mutex) __reentrant; /* - * ao_ee.c + * Storage interface, provided by one of the eeprom or flash + * drivers */ -/* - * We reserve the last block on the device for - * configuration space. Writes and reads in this - * area return errors. - */ +/* Total bytes of available storage */ +extern __xdata uint32_t ao_storage_total; -#define AO_EE_BLOCK_SIZE ((uint16_t) (256)) -#define AO_EE_DEVICE_SIZE ((uint32_t) 128 * (uint32_t) 1024) -#define AO_EE_DATA_SIZE (AO_EE_DEVICE_SIZE - (uint32_t) AO_EE_BLOCK_SIZE) -#define AO_EE_CONFIG_BLOCK ((uint16_t) (AO_EE_DATA_SIZE / AO_EE_BLOCK_SIZE)) +/* Block size - device is erased in these units. At least 256 bytes */ +extern __xdata uint32_t ao_storage_block; -void -ao_ee_flush(void) __reentrant; +/* Byte offset of config block. Will be ao_storage_block bytes long */ +extern __xdata uint32_t ao_storage_config; -/* Write to the eeprom */ -uint8_t -ao_ee_write(uint32_t pos, uint8_t *buf, uint16_t len) __reentrant; +/* Initialize above values. Can only be called once the OS is running */ +void +ao_storage_setup(void); -/* Read from the eeprom */ -uint8_t -ao_ee_read(uint32_t pos, uint8_t *buf, uint16_t len) __reentrant; +/* Flush any pending write data */ +void +ao_storage_flush(void) __reentrant; -/* Write the config block (at the end of the eeprom) */ +/* Write data. Returns 0 on failure, 1 on success */ uint8_t -ao_ee_write_config(uint8_t *buf, uint16_t len) __reentrant; +ao_storage_write(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant; -/* Read the config block (at the end of the eeprom) */ +/* Read data. Returns 0 on failure, 1 on success */ uint8_t -ao_ee_read_config(uint8_t *buf, uint16_t len) __reentrant; +ao_storage_read(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant; -/* Initialize the EEPROM code */ +/* Initialize the storage code */ void -ao_ee_init(void); +ao_storage_init(void); /* * ao_log.c |