From 285a4f6c8e518f03758c7b085bda13bb3795df0a Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Wed, 3 Sep 2008 16:47:33 -0300
Subject: [PATCH] V4L/DVB (8673): gspca: Bad frame scanning again and bad init
 in pac7311.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/gspca/pac7311.c | 62 +++++++++++++++++++++++------
 1 file changed, 50 insertions(+), 12 deletions(-)

diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index 730b4a1aed..85d9ddbc5b 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -220,6 +220,7 @@ static const __u8 probe_7302[] = {
 };
 static const __u8 start_7302[] = {
 /*	index, len, [value]* */
+	0xff, 1,	0x00,		/* page 0 */
 	0x00, 12,	0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
 			0x00, 0x00, 0x00, 0x00,
 	0x0d, 24,	0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
@@ -249,7 +250,7 @@ static const __u8 start_7302[] = {
 	0xd1, 11,	0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
 			0xc1, 0xd7, 0xec,
 	0xdc, 1,	0x01,
-	0xff, 1,	0x01,
+	0xff, 1,	0x01,		/* page 1 */
 	0x12, 3,	0x02, 0x00, 0x01,
 	0x3e, 2,	0x00, 0x00,
 	0x76, 5,	0x01, 0x20, 0x40, 0x00, 0xf2,
@@ -257,26 +258,26 @@ static const __u8 start_7302[] = {
 	0x7f, 10,	0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
 			0x02, 0x00,
 	0x96, 5,	0x01, 0x10, 0x04, 0x01, 0x04,
-	0xc8, 17,	0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
+	0xc8, 14,	0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
 			0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
-			0x01,
+	0xd8, 1,	0x01,
 	0xdb, 2,	0x00, 0x01,
-	0xde, 8,	0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
+	0xde, 7,	0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
 	0xe6, 4,	0x00, 0x00, 0x00, 0x01,
 	0xeb, 1,	0x00,
-	0xff, 1,	0x02,
+	0xff, 1,	0x02,		/* page 2 */
 	0x22, 1,	0x00,
-	0xff, 1,	0x03,
+	0xff, 1,	0x03,		/* page 3 */
 	0x00, 255,			/* load the page 3 */
 	0x11, 1,	0x01,
-	0xff, 1,	0x02,
+	0xff, 1,	0x02,		/* page 2 */
 	0x13, 1,	0x00,
 	0x22, 4,	0x1f, 0xa4, 0xf0, 0x96,
 	0x27, 2,	0x14, 0x0c,
 	0x2a, 5,	0xc8, 0x00, 0x18, 0x12, 0x22,
 	0x64, 8,	0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
 	0x6e, 1,	0x08,
-	0xff, 1,	0x03,
+	0xff, 1,	0x03,		/* page 1 */
 	0x78, 1,	0x00,
 	0, 0				/* end of sequence */
 };
@@ -321,14 +322,14 @@ static const __u8 probe_7311[] = {
 
 static const __u8 start_7311[] = {
 /*	index, len, [value]* */
-	0xff, 1,	0x01,
-	0x02, 53,	0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
+	0xff, 1,	0x01,		/* page 1 */
+	0x02, 43,	0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
 			0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
 			0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
 			0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
 			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 			0x00, 0x00, 0x00,
-	0x3e, 52,	0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
+	0x3e, 42,	0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
 			0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
 			0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
 			0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
@@ -342,7 +343,7 @@ static const __u8 start_7311[] = {
 	0xa0, 4,	0x44, 0x44, 0x44, 0x04,
 	0xf0, 13,	0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
 			0x3f, 0x00, 0x0a, 0x01, 0x00,
-	0xff, 1,	0x04,
+	0xff, 1,	0x04,		/* page 4 */
 	0x00, 254,			/* load the page 4 */
 	0x11, 1,	0x01,
 	0, 0				/* end of sequence */
@@ -738,6 +739,24 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 #define INTER_FRAME 0x53	/* eof + inter frame + sof */
 #define LUM_OFFSET 0x1e		/* reverse offset / start of frame */
 
+/*fixme:test+*/
+/* dump the packet */
+	if (gspca_debug & 0x200) {
+		static char tmp[50];
+
+		PDEBUG(0x200, "pkt_scan");
+		tmp[0] = 0;
+		for (i = 0; i < len; i++) {
+			if (i % 16 == 0 && i != 0) {
+				PDEBUG(0x200, "%s", tmp);
+				tmp[0] = 0;
+			}
+			sprintf(&tmp[(i % 16) * 3], "%02x ", data[i]);
+		}
+		if (tmp[0] != 0)
+			PDEBUG(0x200, "%s", tmp);
+	}
+/*fixme:test-*/
 	/*
 	 * inside a frame, there may be:
 	 *	escaped ff ('ff 00')
@@ -819,6 +838,25 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			put_jpeg_head(gspca_dev, frame);
 			break;
 		case 0xff:		/* 'ff ff ff xx' */
+/*fixme:test+*/
+/* is there a start of frame ? */
+			if (data[i + 2] == 0x00) {
+				static __u8 ffd9[2] = {0xff, 0xd9};
+
+				gspca_frame_add(gspca_dev,
+						INTER_PACKET,
+						frame, data,
+							i + 7 - INTER_FRAME);
+				frame = gspca_frame_add(gspca_dev,
+							LAST_PACKET,
+							frame, ffd9, 2);
+				data += i + 7;
+				len -= i + 7;
+				i = 0;
+				put_jpeg_head(gspca_dev, frame);
+				break;
+			}
+/*fixme:test-*/
 			gspca_frame_add(gspca_dev, INTER_PACKET,
 					frame, data, i);
 			data += i + 4;
-- 
2.39.5