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Added EEPROM timeout

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This commit is contained in:
Aleksandr Vyhovanec 2016-11-02 00:03:16 +03:00
parent 2bb15fe789
commit be1626ad7b
1 changed files with 23 additions and 0 deletions
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23
drivers/mtd/at24xx.c
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@ -139,6 +139,10 @@
# define CONFIG_AT24XX_MTD_BLOCKSIZE AT24XX_PAGESIZE
#endif
#ifndef CONFIG_AT24XX_TIMEOUT_MS
# define CONFIG_AT24XX_TIMEOUT_MS 10
#endif
/************************************************************************************
* Private Types
************************************************************************************/
@ -252,6 +256,7 @@ static int at24c_eraseall(FAR struct at24c_dev_s *priv)
{
uint8_t buf[AT24XX_PAGESIZE + AT24XX_ADDRSIZE];
int startblock = 0;
uint16_t wait;
memset(&buf[AT24XX_ADDRSIZE], 0xff, priv->pagesize);
@ -269,8 +274,14 @@ static int at24c_eraseall(FAR struct at24c_dev_s *priv)
at24addr = (priv->addr | ((offset >> 8) & 0x07));
#endif
wait = CONFIG_AT24XX_TIMEOUT_MS;
while (at24c_i2c_write(priv, at24addr, buf, AT24XX_ADDRSIZE) < 0)
{
finfo("wait\n");
if (!wait--)
{
return ERROR;
}
usleep(1000);
}
@ -301,6 +312,7 @@ static ssize_t at24c_read_internal(FAR struct at24c_dev_s *priv, off_t offset,
{
uint8_t buf[AT24XX_ADDRSIZE];
uint16_t at24addr;
uint16_t wait;
finfo("offset: %lu nbytes: %lu address: %02x\n",
(unsigned long)offset, (unsigned long)nbytes, address);
@ -327,9 +339,14 @@ static ssize_t at24c_read_internal(FAR struct at24c_dev_s *priv, off_t offset,
at24addr = (address | ((offset >> 8) & 0x07));
#endif
wait = CONFIG_AT24XX_TIMEOUT_MS;
while (at24c_i2c_write(priv, at24addr, buf, AT24XX_ADDRSIZE) < 0)
{
finfo("wait\n");
if (!wait--)
{
return ERROR;
}
usleep(1000);
}
@ -410,6 +427,7 @@ static ssize_t at24c_bwrite(FAR struct mtd_dev_s *dev, off_t startblock, size_t
FAR struct at24c_dev_s *priv = (FAR struct at24c_dev_s *)dev;
size_t blocksleft;
uint8_t buf[AT24XX_PAGESIZE + AT24XX_ADDRSIZE];
uint16_t wait;
#if CONFIG_AT24XX_MTD_BLOCKSIZE > AT24XX_PAGESIZE
startblock *= (CONFIG_AT24XX_MTD_BLOCKSIZE / AT24XX_PAGESIZE);
@ -443,9 +461,14 @@ static ssize_t at24c_bwrite(FAR struct mtd_dev_s *dev, off_t startblock, size_t
at24addr = (priv->addr | ((offset >> 8) & 0x07));
#endif
wait = CONFIG_AT24XX_TIMEOUT_MS;
while (at24c_i2c_write(priv, at24addr, buf, AT24XX_ADDRSIZE) < 0)
{
finfo("wait\n");
if (!wait--)
{
return ERROR;
}
usleep(1000);
}