From ebb78c5a81e0f4c85f6d9e1b0d11ede7adb530b3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jean-Fran=C3=A7ois=20Moine?= Date: Sat, 5 Jun 2010 06:56:48 -0300 Subject: [PATCH] V4L/DVB: gspca - t613: Simplify the scan of isoc packets MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/t613.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c index 0cc79e16963f..d9618341ce84 100644 --- a/drivers/media/video/gspca/t613.c +++ b/drivers/media/video/gspca/t613.c @@ -1080,7 +1080,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, /* isoc packet */ int len) /* iso packet length */ { - static u8 ffd9[] = { 0xff, 0xd9 }; + int pkt_type; if (data[0] == 0x5a) { /* Control Packet, after this came the header again, @@ -1090,22 +1090,13 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, } data += 2; len -= 2; - if (data[0] == 0xff && data[1] == 0xd8) { - /* extra bytes....., could be processed too but would be - * a waste of time, right now leave the application and - * libjpeg do it for ourserlves.. */ - gspca_frame_add(gspca_dev, LAST_PACKET, - ffd9, 2); - gspca_frame_add(gspca_dev, FIRST_PACKET, data, len); - return; - } - - if (data[len - 2] == 0xff && data[len - 1] == 0xd9) { - /* Just in case, i have seen packets with the marker, - * other's do not include it... */ - len -= 2; - } - gspca_frame_add(gspca_dev, INTER_PACKET, data, len); + if (data[0] == 0xff && data[1] == 0xd8) + pkt_type = FIRST_PACKET; + else if (data[len - 2] == 0xff && data[len - 1] == 0xd9) + pkt_type = LAST_PACKET; + else + pkt_type = INTER_PACKET; + gspca_frame_add(gspca_dev, pkt_type, data, len); } -- 2.30.2