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env: clean env_eeprom.c checkpatch and code style

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Cleanup the env_eeprom.c checkpatch warnings, errors and coding style.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
This commit is contained in:
Igor Grinberg 2011-11-07 01:14:07 +00:00 committed by Stefano Babic
parent bd2a23ac61
commit dd2a233c94
1 changed files with 46 additions and 58 deletions
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104
common/env_eeprom.c
View file

@ -37,13 +37,13 @@
DECLARE_GLOBAL_DATA_PTR;
env_t *env_ptr = NULL;
env_t *env_ptr;
char *env_name_spec = "EEPROM";
int env_eeprom_bus = -1;
static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt)
uchar *buffer, unsigned cnt)
{
int rcode;
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
@ -57,7 +57,7 @@ static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
if (dev != NULL)
env_eeprom_bus = dev->busid;
else
printf ("error adding env eeprom bus.\n");
printf("error adding env eeprom bus.\n");
}
if (old_bus != env_eeprom_bus) {
i2c_set_bus_num(env_eeprom_bus);
@ -69,7 +69,7 @@ static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
}
#endif
rcode = eeprom_read (dev_addr, offset, buffer, cnt);
rcode = eeprom_read(dev_addr, offset, buffer, cnt);
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
if (old_bus != env_eeprom_bus)
@ -79,7 +79,7 @@ static int eeprom_bus_read(unsigned dev_addr, unsigned offset,
}
static int eeprom_bus_write(unsigned dev_addr, unsigned offset,
uchar *buffer, unsigned cnt)
uchar *buffer, unsigned cnt)
{
int rcode;
#if defined(CONFIG_I2C_ENV_EEPROM_BUS)
@ -94,24 +94,22 @@ static int eeprom_bus_write(unsigned dev_addr, unsigned offset,
return rcode;
}
uchar env_get_char_spec (int index)
uchar env_get_char_spec(int index)
{
uchar c;
unsigned int off;
off = CONFIG_ENV_OFFSET;
unsigned int off = CONFIG_ENV_OFFSET;
#ifdef CONFIG_ENV_OFFSET_REDUND
if (gd->env_valid == 2)
off = CONFIG_ENV_OFFSET_REDUND;
#endif
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
off + index + offsetof(env_t,data),
&c, 1);
off + index + offsetof(env_t, data), &c, 1);
return (c);
return c;
}
void env_relocate_spec (void)
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
unsigned int off = CONFIG_ENV_OFFSET;
@ -121,9 +119,7 @@ void env_relocate_spec (void)
off = CONFIG_ENV_OFFSET_REDUND;
#endif
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
off,
(uchar *)buf,
CONFIG_ENV_SIZE);
off, (uchar *)buf, CONFIG_ENV_SIZE);
env_import(buf, 1);
}
@ -133,11 +129,11 @@ int saveenv(void)
env_t env_new;
ssize_t len;
char *res;
int rc;
unsigned int off = CONFIG_ENV_OFFSET;
int rc;
unsigned int off = CONFIG_ENV_OFFSET;
#ifdef CONFIG_ENV_OFFSET_REDUND
unsigned int off_red = CONFIG_ENV_OFFSET_REDUND;
char flag_obsolete = OBSOLETE_FLAG;
unsigned int off_red = CONFIG_ENV_OFFSET_REDUND;
char flag_obsolete = OBSOLETE_FLAG;
#endif
BUG_ON(env_ptr != NULL);
@ -152,32 +148,28 @@ int saveenv(void)
#ifdef CONFIG_ENV_OFFSET_REDUND
if (gd->env_valid == 1) {
off = CONFIG_ENV_OFFSET_REDUND;
off_red = CONFIG_ENV_OFFSET;
off = CONFIG_ENV_OFFSET_REDUND;
off_red = CONFIG_ENV_OFFSET;
}
env_new.flags = ACTIVE_FLAG;
#endif
rc = eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR,
off,
(uchar *)&env_new,
CONFIG_ENV_SIZE);
off, (uchar *)&env_new, CONFIG_ENV_SIZE);
#ifdef CONFIG_ENV_OFFSET_REDUND
if (rc == 0) {
eeprom_bus_write(CONFIG_SYS_DEF_EEPROM_ADDR,
off_red + offsetof(env_t,flags),
(uchar *)&flag_obsolete,
1);
off_red + offsetof(env_t, flags),
(uchar *)&flag_obsolete, 1);
if (gd->env_valid == 1)
gd->env_valid = 2;
else
gd->env_valid = 1;
}
#endif
return rc;
}
@ -187,17 +179,13 @@ int saveenv(void)
* We are still running from ROM, so data use is limited.
* Use a (moderately small) buffer on the stack
*/
#ifdef CONFIG_ENV_OFFSET_REDUND
int env_init(void)
{
ulong len;
ulong crc[2], crc_tmp;
ulong len, crc[2], crc_tmp;
unsigned int off, off_env[2];
uchar buf[64];
int crc_ok[2] = {0,0};
unsigned char flags[2];
int i;
uchar buf[64], flags[2];
int i, crc_ok[2] = {0, 0};
eeprom_init(); /* prepare for EEPROM read/write */
@ -207,39 +195,39 @@ int env_init(void)
for (i = 0; i < 2; i++) {
/* read CRC */
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
off_env[i] + offsetof(env_t,crc),
(uchar *)&crc[i], sizeof(ulong));
off_env[i] + offsetof(env_t, crc),
(uchar *)&crc[i], sizeof(ulong));
/* read FLAGS */
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
off_env[i] + offsetof(env_t,flags),
(uchar *)&flags[i], sizeof(uchar));
off_env[i] + offsetof(env_t, flags),
(uchar *)&flags[i], sizeof(uchar));
crc_tmp = 0;
len = ENV_SIZE;
off = off_env[i] + offsetof(env_t,data);
off = off_env[i] + offsetof(env_t, data);
while (len > 0) {
int n = (len > sizeof(buf)) ? sizeof(buf) : len;
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR, off,
buf, n);
buf, n);
crc_tmp = crc32(crc_tmp, buf, n);
len -= n;
off += n;
}
if (crc_tmp == crc[i])
crc_ok[i] = 1;
}
if (!crc_ok[0] && !crc_ok[1]) {
gd->env_addr = 0;
gd->env_valid = 0;
gd->env_addr = 0;
gd->env_valid = 0;
return 0;
} else if (crc_ok[0] && !crc_ok[1]) {
gd->env_valid = 1;
}
else if (!crc_ok[0] && crc_ok[1]) {
} else if (!crc_ok[0] && crc_ok[1]) {
gd->env_valid = 2;
} else {
/* both ok - check serial */
@ -249,18 +237,18 @@ int env_init(void)
gd->env_valid = 2;
else if (flags[0] == 0xFF && flags[1] == 0)
gd->env_valid = 2;
else if(flags[1] == 0xFF && flags[0] == 0)
else if (flags[1] == 0xFF && flags[0] == 0)
gd->env_valid = 1;
else /* flags are equal - almost impossible */
gd->env_valid = 1;
}
if (gd->env_valid == 2)
gd->env_addr = off_env[1] + offsetof(env_t,data);
gd->env_addr = off_env[1] + offsetof(env_t, data);
else if (gd->env_valid == 1)
gd->env_addr = off_env[0] + offsetof(env_t,data);
gd->env_addr = off_env[0] + offsetof(env_t, data);
return (0);
return 0;
}
#else
int env_init(void)
@ -273,12 +261,12 @@ int env_init(void)
/* read old CRC */
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
CONFIG_ENV_OFFSET+offsetof(env_t,crc),
(uchar *)&crc, sizeof(ulong));
CONFIG_ENV_OFFSET + offsetof(env_t, crc),
(uchar *)&crc, sizeof(ulong));
new = 0;
len = ENV_SIZE;
off = offsetof(env_t,data);
off = offsetof(env_t, data);
while (len > 0) {
int n = (len > sizeof(buf)) ? sizeof(buf) : len;
@ -291,13 +279,13 @@ int env_init(void)
}
if (crc == new) {
gd->env_addr = offsetof(env_t,data);
gd->env_valid = 1;
gd->env_addr = offsetof(env_t, data);
gd->env_valid = 1;
} else {
gd->env_addr = 0;
gd->env_valid = 0;
gd->env_addr = 0;
gd->env_valid = 0;
}
return (0);
return 0;
}
#endif