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[media] spca505: 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>
This commit is contained in:
Hans Verkuil 2012-05-16 07:41:33 -03:00 committed by Mauro Carvalho Chehab
parent 9b6b35dcb0
commit 2aed6c1b77
1 changed files with 33 additions and 41 deletions
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74
drivers/media/video/gspca/spca505.c
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@ -33,34 +33,11 @@ MODULE_LICENSE("GPL");
struct sd {
struct gspca_dev gspca_dev; /* !! must be the first item */
u8 brightness;
u8 subtype;
#define IntelPCCameraPro 0
#define Nxultra 1
};
/* V4L2 controls supported by the driver */
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
static const struct ctrl sd_ctrls[] = {
{
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 255,
.step = 1,
#define BRIGHTNESS_DEF 127
.default_value = BRIGHTNESS_DEF,
},
.set = sd_setbrightness,
.get = sd_getbrightness,
},
};
static const struct v4l2_pix_format vga_mode[] = {
{160, 120, V4L2_PIX_FMT_SPCA505, V4L2_FIELD_NONE,
.bytesperline = 160,
@ -633,7 +610,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
cam->nmodes = ARRAY_SIZE(vga_mode);
else /* no 640x480 for IntelPCCameraPro */
cam->nmodes = ARRAY_SIZE(vga_mode) - 1;
sd->brightness = BRIGHTNESS_DEF;
return 0;
}
@ -651,11 +627,8 @@ static int sd_init(struct gspca_dev *gspca_dev)
return 0;
}
static void setbrightness(struct gspca_dev *gspca_dev)
static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 brightness = sd->brightness;
reg_write(gspca_dev->dev, 0x05, 0x00, (255 - brightness) >> 6);
reg_write(gspca_dev->dev, 0x05, 0x01, (255 - brightness) << 2);
}
@ -710,7 +683,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
SPCA50X_USB_CTRL,
SPCA50X_CUSB_ENABLE);
setbrightness(gspca_dev);
v4l2_ctrl_handler_setup(&gspca_dev->ctrl_handler);
return ret;
}
@ -756,30 +729,49 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
}
}
static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct sd *sd = (struct sd *) gspca_dev;
struct gspca_dev *gspca_dev =
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
sd->brightness = val;
if (gspca_dev->streaming)
setbrightness(gspca_dev);
return 0;
gspca_dev->usb_err = 0;
if (!gspca_dev->streaming)
return 0;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
setbrightness(gspca_dev, ctrl->val);
break;
}
return gspca_dev->usb_err;
}
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
.s_ctrl = sd_s_ctrl,
};
*val = sd->brightness;
static int sd_init_controls(struct gspca_dev *gspca_dev)
{
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
gspca_dev->vdev.ctrl_handler = hdl;
v4l2_ctrl_handler_init(hdl, 5);
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 255, 1, 127);
if (hdl->error) {
pr_err("Could not initialize controls\n");
return hdl->error;
}
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_controls = sd_init_controls,
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,