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---
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yaml
---
r: 124388
b: refs/heads/master
c: 0f7a50b
h: refs/heads/master
v: v3
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Jim Paris authored and Mauro Carvalho Chehab committed Dec 30, 2008
1 parent 8bed422 commit 4764a11
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Showing 2 changed files with 19 additions and 6 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8d3f6e3582b762a3b28f52c8093631caee94c03a
refs/heads/master: 0f7a50b29dd9c8603d5ce15c11fd1a1d731e1a6d
23 changes: 18 additions & 5 deletions trunk/drivers/media/video/gspca/ov534.c
Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
/*
* ov534/ov772x gspca driver
* Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
* Copyright (C) 2008 Jim Paris <jim@jtan.com>
*
* Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
* USB protocol reverse engineered by Jim Paris <jim@jtan.com>
Expand Down Expand Up @@ -193,8 +194,8 @@ static const __u8 ov534_reg_initdata[][2] = {

{ 0x1c, 0x00 },
{ 0x1d, 0x40 },
{ 0x1d, 0x02 },
{ 0x1d, 0x00 },
{ 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
{ 0x1d, 0x00 }, /* payload size */
{ 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
{ 0x1d, 0x58 }, /* frame size */
{ 0x1d, 0x00 }, /* frame size */
Expand Down Expand Up @@ -325,7 +326,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(vga_mode);

cam->bulk_size = 2048;
cam->bulk_size = 16384;
cam->bulk_nurbs = 2;

return 0;
Expand Down Expand Up @@ -402,6 +403,17 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
struct sd *sd = (struct sd *) gspca_dev;
__u32 this_pts;
int this_fid;
int remaining_len = len;
__u8 *next_data = data;

scan_next:
if (remaining_len <= 0)
return;

data = next_data;
len = min(remaining_len, 2048);
remaining_len -= len;
next_data += len;

/* Payloads are prefixed with a the UVC-style header. We
consider a frame to start when the FID toggles, or the PTS
Expand Down Expand Up @@ -452,12 +464,13 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
gspca_frame_add(gspca_dev, LAST_PACKET, frame, NULL, 0);
}

/* Done */
return;
/* Done this payload */
goto scan_next;

discard:
/* Discard data until a new frame starts. */
gspca_frame_add(gspca_dev, DISCARD_PACKET, frame, NULL, 0);
goto scan_next;
}

/* sub-driver description */
Expand Down

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