summaryrefslogtreecommitdiff
path: root/drivers/media/video/gspca
diff options
context:
space:
mode:
authorHans Verkuil <hans.verkuil@cisco.com>2012-05-16 15:29:16 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-07-31 01:31:16 +0400
commitdf0df1accaf5a5a36901ad4019dd22b59ab8974d (patch)
tree8695e09df459117cc4bd38756b8490caaab7c7f1 /drivers/media/video/gspca
parent3fa24bf5e159d10d160015e08decb48cfa1663a8 (diff)
downloadlinux-df0df1accaf5a5a36901ad4019dd22b59ab8974d.tar.xz
[media] sq930x: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca')
-rw-r--r--drivers/media/video/gspca/sq930x.c109
1 files changed, 40 insertions, 69 deletions
diff --git a/drivers/media/video/gspca/sq930x.c b/drivers/media/video/gspca/sq930x.c
index 1a8ba9b3550a..2d068867d0a4 100644
--- a/drivers/media/video/gspca/sq930x.c
+++ b/drivers/media/video/gspca/sq930x.c
@@ -36,8 +36,10 @@ MODULE_LICENSE("GPL");
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
- u16 expo;
- u8 gain;
+ struct { /* exposure/gain control cluster */
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *gain;
+ };
u8 do_ctrl;
u8 gpio[2];
@@ -55,42 +57,6 @@ enum sensors {
SENSOR_OV9630,
};
-static int sd_setexpo(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getexpo(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
-
-static const struct ctrl sd_ctrls[] = {
- {
- {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = 0x0001,
- .maximum = 0x0fff,
- .step = 1,
-#define EXPO_DEF 0x0356
- .default_value = EXPO_DEF,
- },
- .set = sd_setexpo,
- .get = sd_getexpo,
- },
- {
- {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0x01,
- .maximum = 0xff,
- .step = 1,
-#define GAIN_DEF 0x8d
- .default_value = GAIN_DEF,
- },
- .set = sd_setgain,
- .get = sd_getgain,
- },
-};
-
static struct v4l2_pix_format vga_mode[] = {
{320, 240, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE,
.bytesperline = 320,
@@ -791,7 +757,7 @@ static void lz24bp_ppl(struct sd *sd, u16 ppl)
ucbus_write(&sd->gspca_dev, cmds, ARRAY_SIZE(cmds), 2);
}
-static void setexposure(struct gspca_dev *gspca_dev)
+static void setexposure(struct gspca_dev *gspca_dev, s32 expo, s32 gain)
{
struct sd *sd = (struct sd *) gspca_dev;
int i, integclks, intstartclk, frameclks, min_frclk;
@@ -799,7 +765,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
u16 cmd;
u8 buf[15];
- integclks = sd->expo;
+ integclks = expo;
i = 0;
cmd = SQ930_CTRL_SET_EXPOSURE;
@@ -818,7 +784,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
buf[i++] = intstartclk;
buf[i++] = frameclks >> 8;
buf[i++] = frameclks;
- buf[i++] = sd->gain;
+ buf[i++] = gain;
break;
default: /* cmos */
/* case SENSOR_MI0360: */
@@ -834,7 +800,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
buf[i++] = 0x35; /* reg = global gain */
buf[i++] = 0x00; /* val H */
buf[i++] = sensor->i2c_dum;
- buf[i++] = 0x80 + sd->gain / 2; /* val L */
+ buf[i++] = 0x80 + gain / 2; /* val L */
buf[i++] = 0x00;
buf[i++] = 0x00;
buf[i++] = 0x00;
@@ -860,9 +826,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->bulk = 1;
- sd->gain = GAIN_DEF;
- sd->expo = EXPO_DEF;
-
return 0;
}
@@ -1089,7 +1052,8 @@ static void sd_dq_callback(struct gspca_dev *gspca_dev)
return;
sd->do_ctrl = 0;
- setexposure(gspca_dev);
+ setexposure(gspca_dev, v4l2_ctrl_g_ctrl(sd->exposure),
+ v4l2_ctrl_g_ctrl(sd->gain));
gspca_dev->cam.bulk_nurbs = 1;
ret = usb_submit_urb(gspca_dev->urb[0], GFP_ATOMIC);
@@ -1113,48 +1077,55 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
}
-static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
+static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
struct sd *sd = (struct sd *) gspca_dev;
- sd->gain = val;
- if (gspca_dev->streaming)
- sd->do_ctrl = 1;
- return 0;
-}
+ gspca_dev->usb_err = 0;
-static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
+ if (!gspca_dev->streaming)
+ return 0;
- *val = sd->gain;
- return 0;
+ switch (ctrl->id) {
+ case V4L2_CID_EXPOSURE:
+ setexposure(gspca_dev, ctrl->val, sd->gain->val);
+ break;
+ }
+ return gspca_dev->usb_err;
}
-static int sd_setexpo(struct gspca_dev *gspca_dev, __s32 val)
-{
- struct sd *sd = (struct sd *) gspca_dev;
- sd->expo = val;
- if (gspca_dev->streaming)
- sd->do_ctrl = 1;
- return 0;
-}
+static const struct v4l2_ctrl_ops sd_ctrl_ops = {
+ .s_ctrl = sd_s_ctrl,
+};
-static int sd_getexpo(struct gspca_dev *gspca_dev, __s32 *val)
+static int sd_init_controls(struct gspca_dev *gspca_dev)
{
+ struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
struct sd *sd = (struct sd *) gspca_dev;
- *val = sd->expo;
+ gspca_dev->vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 2);
+ sd->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, 0xfff, 1, 0x356);
+ sd->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
+ V4L2_CID_GAIN, 1, 255, 1, 0x8d);
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ v4l2_ctrl_cluster(2, &sd->exposure);
return 0;
}
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
- .ctrls = sd_ctrls,
- .nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config,
.init = sd_init,
+ .init_controls = sd_init_controls,
.isoc_init = sd_isoc_init,
.start = sd_start,
.stopN = sd_stopN,