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authorLen Brown <len.brown@intel.com>2009-04-05 02:14:15 -0400
committerLen Brown <len.brown@intel.com>2009-04-05 02:14:15 -0400
commit478c6a43fcbc6c11609f8cee7c7b57223907754f (patch)
treea7f7952099da60d33032aed6de9c0c56c9f8779e /drivers/media/video/gspca/stk014.c
parent8a3f257c704e02aee9869decd069a806b45be3f1 (diff)
parent6bb597507f9839b13498781e481f5458aea33620 (diff)
Merge branch 'linus' into release
Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/media/video/gspca/stk014.c')
-rw-r--r--drivers/media/video/gspca/stk014.c72
1 files changed, 60 insertions, 12 deletions
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index 60de9af87fb..f25be20cf1a 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -35,10 +35,13 @@ struct sd {
unsigned char contrast;
unsigned char colors;
unsigned char lightfreq;
-};
+ u8 quality;
+#define QUALITY_MIN 60
+#define QUALITY_MAX 95
+#define QUALITY_DEF 80
-/* global parameters */
-static int sd_quant = 7; /* <= 4 KO - 7: good (enough!) */
+ u8 *jpeg_hdr;
+};
/* V4L2 controls supported by the driver */
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
@@ -180,7 +183,7 @@ static int rcv_val(struct gspca_dev *gspca_dev,
reg_w(gspca_dev, 0x63b, 0);
reg_w(gspca_dev, 0x630, 5);
ret = usb_bulk_msg(dev,
- usb_rcvbulkpipe(dev, 5),
+ usb_rcvbulkpipe(dev, 0x05),
gspca_dev->usb_buf,
4, /* length */
&alen,
@@ -294,15 +297,14 @@ static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id)
{
struct sd *sd = (struct sd *) gspca_dev;
- struct cam *cam = &gspca_dev->cam;
- cam->epaddr = 0x02;
gspca_dev->cam.cam_mode = vga_mode;
gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->lightfreq = FREQ_DEF;
+ sd->quality = QUALITY_DEF;
return 0;
}
@@ -326,8 +328,15 @@ static int sd_init(struct gspca_dev *gspca_dev)
/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
+ struct sd *sd = (struct sd *) gspca_dev;
int ret, value;
+ /* create the JPEG header */
+ sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+ jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+ 0x22); /* JPEG 411 */
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+
/* work on alternate 1 */
usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
@@ -399,11 +408,19 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
PDEBUG(D_STREAM, "camera stopped");
}
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ kfree(sd->jpeg_hdr);
+}
+
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
__u8 *data, /* isoc packet */
int len) /* iso packet length */
{
+ struct sd *sd = (struct sd *) gspca_dev;
static unsigned char ffd9[] = {0xff, 0xd9};
/* a frame starts with:
@@ -420,7 +437,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
ffd9, 2);
/* put the JPEG 411 header */
- jpeg_put_header(gspca_dev, frame, sd_quant, 0x22);
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+ sd->jpeg_hdr, JPEG_HDR_SZ);
/* beginning of the frame */
#define STKHDRSZ 12
@@ -520,6 +538,34 @@ static int sd_querymenu(struct gspca_dev *gspca_dev,
return -EINVAL;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -529,8 +575,11 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
+ .stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
@@ -562,8 +611,10 @@ static struct usb_driver sd_driver = {
/* -- module insert / remove -- */
static int __init sd_mod_init(void)
{
- if (usb_register(&sd_driver) < 0)
- return -1;
+ int ret;
+ ret = usb_register(&sd_driver);
+ if (ret < 0)
+ return ret;
info("registered");
return 0;
}
@@ -575,6 +626,3 @@ static void __exit sd_mod_exit(void)
module_init(sd_mod_init);
module_exit(sd_mod_exit);
-
-module_param_named(quant, sd_quant, int, 0644);
-MODULE_PARM_DESC(quant, "Quantization index (0..8)");