From: Márton Németh <nm127@xxxxxxxxxxx>
Creating the start of the frame is done in the same way for pac7302
and for pac7311. Extract this common part to the pac_start_frame()
function.
Signed-off-by: Márton Németh <nm127@xxxxxxxxxxx>
Cc: Thomas Kaiser <thomas@xxxxxxxxxxxxxxx>
Cc: Theodore Kilgore <kilgota@xxxxxxxxxx>
Cc: Kyle Guinn <elyk03@xxxxxxxxx>
---
diff -uprN b/drivers/media/video/gspca/pac7311.c c/drivers/media/video/gspca/pac7311.c
--- b/drivers/media/video/gspca/pac7311.c 2009-11-01 18:11:22.000000000 +0100
+++ c/drivers/media/video/gspca/pac7311.c 2009-11-01 18:16:41.000000000 +0100
@@ -816,7 +816,7 @@ static void do_autogain(struct gspca_dev
}
/* JPEG header, part 1 */
-static const unsigned char pac7311_jpeg_header1[] = {
+static const unsigned char pac_jpeg_header1[] = {
0xff, 0xd8, /* SOI: Start of Image */
0xff, 0xc0, /* SOF0: Start of Frame (Baseline DCT) */
@@ -827,7 +827,7 @@ static const unsigned char pac7311_jpeg_
};
/* JPEG header, continued */
-static const unsigned char pac7311_jpeg_header2[] = {
+static const unsigned char pac_jpeg_header2[] = {
0x03, /* Number of image components: 3 */
0x01, 0x21, 0x00, /* ID=1, Subsampling 1x1, Quantization table: 0 */
0x02, 0x11, 0x01, /* ID=2, Subsampling 2x1, Quantization table: 1 */
@@ -843,6 +843,26 @@ static const unsigned char pac7311_jpeg_
0x00 /* Successive approximation: 0 */
};
+static void pac_start_frame(struct gspca_dev *gspca_dev,
+ struct gspca_frame *frame,
+ __u16 lines, __u16 samples_per_line)
+{
+ unsigned char tmpbuf[4];
+
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+ pac_jpeg_header1, sizeof(pac_jpeg_header1));
+
+ tmpbuf[0] = lines >> 8;
+ tmpbuf[1] = lines & 0xff;
+ tmpbuf[2] = samples_per_line >> 8;
+ tmpbuf[3] = samples_per_line & 0xff;
+
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+ tmpbuf, sizeof(tmpbuf));
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame,
+ pac_jpeg_header2, sizeof(pac_jpeg_header2));
+}
+
/* this function is run at interrupt level */
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
@@ -854,7 +874,6 @@ static void sd_pkt_scan(struct gspca_dev
sof = pac_find_sof(&sd->sof_read, data, len);
if (sof) {
- unsigned char tmpbuf[4];
int n, lum_offset, footer_length;
if (sd->sensor == SENSOR_PAC7302) {
@@ -896,23 +915,14 @@ static void sd_pkt_scan(struct gspca_dev
atomic_set(&sd->avg_lum, -1);
/* Start the new frame with the jpeg header */
- gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
- pac7311_jpeg_header1, sizeof(pac7311_jpeg_header1));
if (sd->sensor == SENSOR_PAC7302) {
/* The PAC7302 has the image rotated 90 degrees */
- tmpbuf[0] = gspca_dev->width >> 8;
- tmpbuf[1] = gspca_dev->width & 0xff;
- tmpbuf[2] = gspca_dev->height >> 8;
- tmpbuf[3] = gspca_dev->height & 0xff;
+ pac_start_frame(gspca_dev, frame,
+ gspca_dev->width, gspca_dev->height);
} else {
- tmpbuf[0] = gspca_dev->height >> 8;
- tmpbuf[1] = gspca_dev->height & 0xff;
- tmpbuf[2] = gspca_dev->width >> 8;
- tmpbuf[3] = gspca_dev->width & 0xff;
+ pac_start_frame(gspca_dev, frame,
+ gspca_dev->height, gspca_dev->width);
}
- gspca_frame_add(gspca_dev, INTER_PACKET, frame, tmpbuf, 4);
- gspca_frame_add(gspca_dev, INTER_PACKET, frame,
- pac7311_jpeg_header2, sizeof(pac7311_jpeg_header2));
}
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
--
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