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Whitespace fixes in firmware/common/structec.c

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Change-Id: I2a6c5d5bd0c5b8fb516e167df74dc1f18508d702
This commit is contained in:
Franklin Wei 2015-02-24 16:21:59 -05:00
parent c4bf2e3cfd
commit 08724860a8
1 changed files with 23 additions and 24 deletions
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47
firmware/common/structec.c
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@ -30,32 +30,32 @@
/**
* Convert the struct endianess with the instructions provided.
*
*
* For example:
* struct test {
* long par1;
* short par2;
* short par3;
* };
*
*
* structec_convert(instance_of_test, "lss", sizeof(struct test), true);
*
*
* Structures to be converted must be properly padded.
*
*
* @param structure Pointer to the struct being converted.
* @param ecinst Instructions how to do the endianess conversion.
* @param count Number of structures to write
* @param enable Conversion is not made unless this is true.
*/
void structec_convert(void *structure, const char *ecinst,
void structec_convert(void *structure, const char *ecinst,
long count, bool enable)
{
const char *ecinst_ring = ecinst;
char *buf = (char *)structure;
if (!enable)
return;
while (count > 0)
{
switch (*ecinst_ring)
@ -66,7 +66,7 @@ void structec_convert(void *structure, const char *ecinst,
buf++;
break;
}
/* Swap 2 bytes. */
case 's':
{
@ -84,7 +84,7 @@ void structec_convert(void *structure, const char *ecinst,
buf += 4;
break;
}
/* Skip N bytes, idea taken from metadata.c */
default:
{
@ -94,7 +94,7 @@ void structec_convert(void *structure, const char *ecinst,
break;
}
}
ecinst_ring++;
if (*ecinst_ring == '\0')
{
@ -107,14 +107,14 @@ void structec_convert(void *structure, const char *ecinst,
/**
* Determines the size of a struct in bytes by using endianess correction
* string format.
*
*
* @param ecinst endianess correction string.
* @return length of the struct in bytes.
*/
static size_t structec_size(const char *ecinst)
{
size_t size = 0;
do
{
switch (*ecinst)
@ -122,18 +122,18 @@ static size_t structec_size(const char *ecinst)
case 'c': size += 1; break;
case 's': size += 2; break;
case 'l': size += 4; break;
default:
default:
if (isdigit(*ecinst))
size += (*ecinst - '0');
}
} while (*(++ecinst) != '\0');
return size;
}
/**
* Reads endianess corrected structure members from the given file.
*
*
* @param fd file descriptor of the file being read.
* @param buf endianess corrected data is placed here.
* @param scount the number of struct members to read.
@ -144,23 +144,23 @@ ssize_t ecread(int fd, void *buf, size_t scount, const char *ecinst, bool ec)
{
ssize_t ret;
size_t member_size = structec_size(ecinst);
ret = read(fd, buf, scount * member_size);
structec_convert(buf, ecinst, scount, ec);
return ret;
}
/**
* Writes endianess corrected structure members to the given file.
*
*
* @param fd file descriptor of the file being written to.
* @param buf endianess corrected data is read here.
* @param scount the number of struct members to write.
* @param ecinst endianess correction string.
* @param ec if true, endianess correction is enabled.
*/
ssize_t ecwrite(int fd, const void *buf, size_t scount,
ssize_t ecwrite(int fd, const void *buf, size_t scount,
const char *ecinst, bool ec)
{
char tmp[MAX_STRUCT_SIZE];
@ -171,20 +171,19 @@ ssize_t ecwrite(int fd, const void *buf, size_t scount,
const char *p = (const char *)buf;
int maxamount = (int)(MAX_STRUCT_SIZE / member_size);
int i;
for (i = 0; i < (long)scount; i += maxamount)
{
long amount = MIN((int)scount-i, maxamount);
memcpy(tmp, p, member_size * amount);
structec_convert(tmp, ecinst, amount, true);
write(fd, tmp, amount * member_size);
p += member_size * amount;
}
return scount * member_size;
}
return write(fd, buf, scount * member_size);
}