@@ -957,9 +957,10 @@ 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;
@@ -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;
@@ -1035,7 +1035,7 @@ static void pac7302_sd_pkt_scan(struct g
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;
@@ -1099,7 +1099,7 @@ static void pac7311_sd_pkt_scan(struct g
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;
@@ -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;
}
}