diff options
| -rw-r--r-- | firmware/drivers/eeprom_24cxx.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/firmware/drivers/eeprom_24cxx.c b/firmware/drivers/eeprom_24cxx.c index 20ad1df..6016c0f 100644 --- a/firmware/drivers/eeprom_24cxx.c +++ b/firmware/drivers/eeprom_24cxx.c @@ -36,6 +36,13 @@ #define SW_I2C_WRITE 0 #define SW_I2C_READ 1 +/* Use cache to speedup writing to the chip. */ +static char data_cache[EEPROM_SIZE]; +static uint8_t cached_bitfield[EEPROM_SIZE/8]; + +#define IS_CACHED(addr) (cached_bitfield[addr/8] & (1 << (addr % 8))) +#define SET_CACHED(addr) (cached_bitfield[addr/8] |= 1 << (addr % 8)) + /* h1x0 needs its own i2c driver, h3x0 uses the pcf i2c driver */ @@ -58,10 +65,6 @@ /* delay loop to achieve 400kHz at 120MHz CPU frequency */ #define DELAY do { int _x; for(_x=0;_x<22;_x++);} while(0) -/* Use cache to speedup writing to the chip. */ -static char data_cache[EEPROM_SIZE]; -static uint8_t cached_bitfield[EEPROM_SIZE/8]; - static void sw_i2c_init(void) { logf("sw_i2c_init"); @@ -288,9 +291,6 @@ void eeprom_24cxx_init(void) memset(cached_bitfield, 0, sizeof cached_bitfield); } -#define IS_CACHED(addr) (cached_bitfield[addr/8] & (1 << (addr % 8))) -#define SET_CACHED(addr) (cached_bitfield[addr/8] |= 1 << (addr % 8)) - int eeprom_24cxx_read_byte(unsigned int address, char *c) { int ret; |