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dm: i2c: Move error reporting into a common function

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Factor out the common code to make it easier to adjust it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Simon Glass 2014-11-11 10:46:17 -07:00
parent 38687ae676
commit c1a6f371ae
1 changed files with 22 additions and 10 deletions
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32
common/cmd_i2c.c
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@ -198,6 +198,19 @@ static uint get_alen(char *arg)
return alen;
}
enum i2c_err_op {
I2C_ERR_READ,
I2C_ERR_WRITE,
};
static int i2c_report_err(int ret, enum i2c_err_op op)
{
printf("Error %s the chip: %d\n",
op == I2C_ERR_READ ? "reading" : "writing", ret);
return CMD_RET_FAILURE;
}
/**
* do_i2c_read() - Handle the "i2c read" command-line command
* @cmdtp: Command data struct pointer
@ -245,7 +258,7 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
memaddr = (u_char *)simple_strtoul(argv[4], NULL, 16);
if (i2c_read(chip, devaddr, alen, memaddr, length) != 0) {
puts ("Error reading the chip.\n");
i2c_report_err(-1, I2C_ERR_READ);
return 1;
}
return 0;
@ -286,8 +299,7 @@ static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
while (length-- > 0) {
if (i2c_write(chip, devaddr++, alen, memaddr++, 1) != 0) {
puts("Error writing to the chip.\n");
return 1;
return i2c_report_err(-1, I2C_ERR_WRITE);
}
/*
* No write delay with FRAM devices.
@ -370,7 +382,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
if (i2c_read(chip, addr, alen, linebuf, linebytes) != 0)
puts ("Error reading the chip.\n");
i2c_report_err(-1, I2C_ERR_READ);
else {
printf("%04x:", addr);
cp = linebuf;
@ -452,7 +464,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
while (count-- > 0) {
if (i2c_write(chip, addr++, alen, &byte, 1) != 0)
puts ("Error writing the chip.\n");
i2c_report_err(-1, I2C_ERR_WRITE);
/*
* Wait for the write to complete. The write can take
* up to 10mSec (we allow a little more time).
@ -528,7 +540,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
addr++;
}
if (err > 0)
puts ("Error reading the chip,\n");
i2c_report_err(-1, I2C_ERR_READ);
else
printf ("%08lx\n", crc);
@ -601,7 +613,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
do {
printf("%08lx:", addr);
if (i2c_read(chip, addr, alen, (uchar *)&data, size) != 0)
puts ("\nError reading the chip,\n");
i2c_report_err(-1, I2C_ERR_READ);
else {
data = cpu_to_be32(data);
if (size == 1)
@ -644,7 +656,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
*/
bootretry_reset_cmd_timeout();
if (i2c_write(chip, addr, alen, (uchar *)&data, size) != 0)
puts ("Error writing the chip.\n");
i2c_report_err(-1, I2C_ERR_WRITE);
#ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
#endif
@ -783,7 +795,7 @@ static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
*/
while (1) {
if (i2c_read(chip, addr, alen, bytes, length) != 0)
puts ("Error reading the chip.\n");
i2c_report_err(-1, I2C_ERR_READ);
udelay(delay);
}
@ -1341,7 +1353,7 @@ int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
chip = simple_strtoul(argv[1], NULL, 16);
if (i2c_read(chip, 0, 1, (uchar *)&edid, sizeof(edid)) != 0) {
puts("Error reading EDID content.\n");
i2c_report_err(-1, I2C_ERR_READ);
return 1;
}