Signed-off-by: Florian Echtler <f...@butterbrot.org>
---
drivers/input/touchscreen/sur40.c | 114 ++++++++++++++++++++++++++++++++++++++
1 file changed, 114 insertions(+)
diff --git a/drivers/input/touchscreen/sur40.c
b/drivers/input/touchscreen/sur40.c
index 63c7264b..c4b7cf1 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -953,6 +953,119 @@ static int sur40_vidioc_g_fmt(struct file *file, void
*priv,
return 0;
}
+
+static int sur40_vidioc_queryctrl(struct file *file, void *fh,
+ struct v4l2_queryctrl *qc)
+{
+
+ switch (qc->id) {
+ case V4L2_CID_BRIGHTNESS:
+ qc->flags = 0;
+ sprintf(qc->name, "Brightness");
+ qc->type = V4L2_CTRL_TYPE_INTEGER;
+ qc->minimum = SUR40_BRIGHTNESS_MIN;
+ qc->default_value = SUR40_BRIGHTNESS_DEF;
+ qc->maximum = SUR40_BRIGHTNESS_MAX;
+ qc->step = 8;
+ return 0;
+ case V4L2_CID_CONTRAST:
+ qc->flags = 0;
+ sprintf(qc->name, "Contrast");
+ qc->type = V4L2_CTRL_TYPE_INTEGER;
+ qc->minimum = SUR40_CONTRAST_MIN;
+ qc->default_value = SUR40_CONTRAST_DEF;
+ qc->maximum = SUR40_CONTRAST_MAX;
+ qc->step = 1;
+ return 0;
+ case V4L2_CID_GAIN:
+ qc->flags = 0;
+ sprintf(qc->name, "Gain");
+ qc->type = V4L2_CTRL_TYPE_INTEGER;
+ qc->minimum = SUR40_GAIN_MIN;
+ qc->default_value = SUR40_GAIN_DEF;
+ qc->maximum = SUR40_GAIN_MAX;
+ qc->step = 1;
+ return 0;
+ case V4L2_CID_BACKLIGHT_COMPENSATION:
+ qc->flags = 0;
+ sprintf(qc->name, "Preprocessor");
+ qc->type = V4L2_CTRL_TYPE_INTEGER;
+ qc->minimum = SUR40_BACKLIGHT_MIN;
+ qc->default_value = SUR40_BACKLIGHT_DEF;
+ qc->maximum = SUR40_BACKLIGHT_MAX;
+ qc->step = 1;
+ return 0;
+ default:
+ qc->flags = V4L2_CTRL_FLAG_DISABLED;
+ return -EINVAL;
+ }
+}
+
+static int sur40_vidioc_g_ctrl(struct file *file, void *fh,
+ struct v4l2_control *ctrl)
+{
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = sur40_v4l2_brightness;
+ return 0;
+ case V4L2_CID_CONTRAST:
+ ctrl->value = sur40_v4l2_contrast;
+ return 0;
+ case V4L2_CID_GAIN:
+ ctrl->value = sur40_v4l2_gain;
+ return 0;
+ case V4L2_CID_BACKLIGHT_COMPENSATION:
+ ctrl->value = sur40_v4l2_backlight;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int sur40_vidioc_s_ctrl(struct file *file, void *fh,
+ struct v4l2_control *ctrl)
+{
+ u8 value = 0;
+ struct sur40_state *sur40 = video_drvdata(file);
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ sur40_v4l2_brightness = ctrl->value;
+ if (sur40_v4l2_brightness < SUR40_BRIGHTNESS_MIN)
+ sur40_v4l2_brightness = SUR40_BRIGHTNESS_MIN;
+ else if (sur40_v4l2_brightness > SUR40_BRIGHTNESS_MAX)
+ sur40_v4l2_brightness = SUR40_BRIGHTNESS_MAX;
+ sur40_set_irlevel(sur40, sur40_v4l2_brightness);
+ return 0;
+ case V4L2_CID_CONTRAST:
+ sur40_v4l2_contrast = ctrl->value;
+ if (sur40_v4l2_contrast < SUR40_CONTRAST_MIN)
+ sur40_v4l2_contrast = SUR40_CONTRAST_MIN;
+ else if (sur40_v4l2_contrast > SUR40_CONTRAST_MAX)
+ sur40_v4l2_contrast = SUR40_CONTRAST_MAX;
+ value = (sur40_v4l2_contrast << 4) + sur40_v4l2_gain;
+ sur40_set_vsvideo(sur40, value);
+ return 0;
+ case V4L2_CID_GAIN:
+ sur40_v4l2_gain = ctrl->value;
+ if (sur40_v4l2_gain < SUR40_GAIN_MIN)
+ sur40_v4l2_gain = SUR40_GAIN_MIN;
+ else if (sur40_v4l2_gain > SUR40_GAIN_MAX)
+ sur40_v4l2_gain = SUR40_GAIN_MAX;
+ value = (sur40_v4l2_contrast << 4) + sur40_v4l2_gain;
+ sur40_set_vsvideo(sur40, value);
+ return 0;
+ case V4L2_CID_BACKLIGHT_COMPENSATION:
+ sur40_v4l2_backlight = ctrl->value;
+ sur40_set_preprocessor(sur40, sur40_v4l2_backlight);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
+
static int sur40_ioctl_parm(struct file *file, void *priv,
struct v4l2_streamparm *p)
{
@@ -1071,6 +1181,10 @@ static const struct v4l2_ioctl_ops sur40_video_ioctl_ops
= {
.vidioc_g_input = sur40_vidioc_g_input,
.vidioc_s_input = sur40_vidioc_s_input,
+ .vidioc_queryctrl = sur40_vidioc_queryctrl,
+ .vidioc_g_ctrl = sur40_vidioc_g_ctrl,
+ .vidioc_s_ctrl = sur40_vidioc_s_ctrl,
+
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
--
2.7.4
