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Reset I2C EEPROM address position on stop, fixes HWiNFO SPD reading

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This commit is contained in:
RichardG867
2020-12-11 18:25:14 -03:00
parent 963005a084
commit 7192007e7d
1 changed files with 14 additions and 3 deletions
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17
src/mem/i2c_eeprom.c
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@@ -33,7 +33,7 @@ typedef struct {
uint8_t addr_len, addr_pos; uint8_t addr_len, addr_pos;
} i2c_eeprom_t; } i2c_eeprom_t;
#define ENABLE_I2C_EEPROM_LOG 1
#ifdef ENABLE_I2C_EEPROM_LOG #ifdef ENABLE_I2C_EEPROM_LOG
int i2c_eeprom_do_log = ENABLE_I2C_EEPROM_LOG; int i2c_eeprom_do_log = ENABLE_I2C_EEPROM_LOG;
@@ -110,6 +110,17 @@ i2c_eeprom_write(void *bus, uint8_t addr, uint8_t data, void *priv)
} }
static void
i2c_eeprom_stop(void *bus, uint8_t addr, void *priv)
{
i2c_eeprom_t *dev = (i2c_eeprom_t *) priv;
i2c_eeprom_log("I2C EEPROM %s %02X: stop()\n", i2c_getbusname(dev->i2c), dev->addr);
dev->addr_pos = 0;
}
uint8_t uint8_t
log2i(uint32_t i) log2i(uint32_t i)
{ {
@@ -142,7 +153,7 @@ i2c_eeprom_init(void *i2c, uint8_t addr, uint8_t *data, uint32_t size, uint8_t w
dev->addr_len = (size >= 4096) ? 16 : 8; /* use 16-bit addresses on 24C32 and above */ dev->addr_len = (size >= 4096) ? 16 : 8; /* use 16-bit addresses on 24C32 and above */
dev->addr_mask = size - 1; dev->addr_mask = size - 1;
i2c_sethandler(dev->i2c, dev->addr & ~(dev->addr_mask >> dev->addr_len), (dev->addr_mask >> dev->addr_len) + 1, i2c_eeprom_start, i2c_eeprom_read, i2c_eeprom_write, NULL, dev); i2c_sethandler(dev->i2c, dev->addr & ~(dev->addr_mask >> dev->addr_len), (dev->addr_mask >> dev->addr_len) + 1, i2c_eeprom_start, i2c_eeprom_read, i2c_eeprom_write, i2c_eeprom_stop, dev);
return dev; return dev;
} }
@@ -155,7 +166,7 @@ i2c_eeprom_close(void *dev_handle)
i2c_eeprom_log("I2C EEPROM %s %02X: close()\n", i2c_getbusname(dev->i2c), dev->addr); i2c_eeprom_log("I2C EEPROM %s %02X: close()\n", i2c_getbusname(dev->i2c), dev->addr);
i2c_removehandler(dev->i2c, dev->addr & ~(dev->addr_mask >> dev->addr_len), (dev->addr_mask >> dev->addr_len) + 1, i2c_eeprom_start, i2c_eeprom_read, i2c_eeprom_write, NULL, dev); i2c_removehandler(dev->i2c, dev->addr & ~(dev->addr_mask >> dev->addr_len), (dev->addr_mask >> dev->addr_len) + 1, i2c_eeprom_start, i2c_eeprom_read, i2c_eeprom_write, i2c_eeprom_stop, dev);
free(dev); free(dev);
} }