From: Márton Németh <nm127@xxxxxxxxxxx>
Remove struct sd dependency from pac_find_sof() function implementation.
This step prepares separation of pac7302 and pac7311 specific parts of
struct sd.
Signed-off-by: Márton Németh <nm127@xxxxxxxxxxx>
Cc: Thomas Kaiser <thomas@xxxxxxxxxxxxxxx>
Cc: Theodore Kilgore <kilgota@xxxxxxxxxx>
Cc: Kyle Guinn <elyk03@xxxxxxxxx>
---
diff -uprN a/drivers/media/video/gspca/mr97310a.c b/drivers/media/video/gspca/mr97310a.c
--- a/drivers/media/video/gspca/mr97310a.c 2009-11-01 06:49:29.000000000 +0100
+++ b/drivers/media/video/gspca/mr97310a.c 2009-11-01 18:11:22.000000000 +0100
@@ -1034,9 +1034,10 @@ static void sd_pkt_scan(struct gspca_dev
__u8 *data, /* isoc packet */
int len) /* iso packet length */
{
+ struct sd *sd = (struct sd *) gspca_dev;
unsigned char *sof;
- sof = pac_find_sof(gspca_dev, data, len);
+ sof = pac_find_sof(&sd->sof_read, data, len);
if (sof) {
int n;
diff -uprN a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c
--- a/drivers/media/video/gspca/pac207.c 2009-10-30 16:12:05.000000000 +0100
+++ b/drivers/media/video/gspca/pac207.c 2009-11-01 18:11:22.000000000 +0100
@@ -344,7 +344,7 @@ static void sd_pkt_scan(struct gspca_dev
struct sd *sd = (struct sd *) gspca_dev;
unsigned char *sof;
- sof = pac_find_sof(gspca_dev, data, len);
+ sof = pac_find_sof(&sd->sof_read, data, len);
if (sof) {
int n;
diff -uprN a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
--- a/drivers/media/video/gspca/pac7311.c 2009-11-01 06:51:38.000000000 +0100
+++ b/drivers/media/video/gspca/pac7311.c 2009-11-01 18:11:22.000000000 +0100
@@ -852,7 +852,7 @@ static void sd_pkt_scan(struct gspca_dev
struct sd *sd = (struct sd *) gspca_dev;
unsigned char *sof;
- sof = pac_find_sof(gspca_dev, data, len);
+ sof = pac_find_sof(&sd->sof_read, data, len);
if (sof) {
unsigned char tmpbuf[4];
int n, lum_offset, footer_length;
diff -uprN a/drivers/media/video/gspca/pac_common.h b/drivers/media/video/gspca/pac_common.h
--- a/drivers/media/video/gspca/pac_common.h 2009-10-30 16:12:05.000000000 +0100
+++ b/drivers/media/video/gspca/pac_common.h 2009-11-01 18:11:22.000000000 +0100
@@ -72,42 +72,41 @@ static const unsigned char pac_sof_marke
+----------+
*/
-static unsigned char *pac_find_sof(struct gspca_dev *gspca_dev,
+static unsigned char *pac_find_sof(u8 *sof_read,
unsigned char *m, int len)
{
- struct sd *sd = (struct sd *) gspca_dev;
int i;
/* Search for the SOF marker (fixed part) in the header */
for (i = 0; i < len; i++) {
- switch (sd->sof_read) {
+ switch (*sof_read) {
case 0:
if (m[i] == 0xff)
- sd->sof_read = 1;
+ *sof_read = 1;
break;
case 1:
if (m[i] == 0xff)
- sd->sof_read = 2;
+ *sof_read = 2;
else
- sd->sof_read = 0;
+ *sof_read = 0;
break;
case 2:
switch (m[i]) {
case 0x00:
- sd->sof_read = 3;
+ *sof_read = 3;
break;
case 0xff:
/* stay in this state */
break;
default:
- sd->sof_read = 0;
+ *sof_read = 0;
}
break;
case 3:
if (m[i] == 0xff)
- sd->sof_read = 4;
+ *sof_read = 4;
else
- sd->sof_read = 0;
+ *sof_read = 0;
break;
case 4:
switch (m[i]) {
@@ -117,18 +116,18 @@ static unsigned char *pac_find_sof(struc
"SOF found, bytes to analyze: %u."
" Frame starts at byte #%u",
len, i + 1);
- sd->sof_read = 0;
+ *sof_read = 0;
return m + i + 1;
break;
case 0xff:
- sd->sof_read = 2;
+ *sof_read = 2;
break;
default:
- sd->sof_read = 0;
+ *sof_read = 0;
}
break;
default:
- sd->sof_read = 0;
+ *sof_read = 0;
}
}
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