Use the V4L2_CID_SHARPNESS control to switch SH-mobile camera low-pass filter.
Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
---
Is this a suitable control for this filter?
drivers/media/video/sh_mobile_ceu_camera.c | 54 +++++++++++++++++++++++++++-
1 files changed, 53 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c
b/drivers/media/video/sh_mobile_ceu_camera.c
index 7ac4d92..8274fb1 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -499,7 +499,6 @@ static int sh_mobile_ceu_set_bus_param(struct
soc_camera_device *icd,
ceu_write(pcdev, CAPWR, (height << 16) | width);
ceu_write(pcdev, CFLCR, 0); /* no scaling */
ceu_write(pcdev, CFSZR, (height << 16) | cfszr_width);
- ceu_write(pcdev, CLFCR, 0); /* no lowpass filter */
/* A few words about byte order (observed in Big Endian mode)
*
@@ -784,6 +783,55 @@ static void sh_mobile_ceu_init_videobuf(struct
videobuf_queue *q,
icd);
}
+static int sh_mobile_ceu_get_ctrl(struct soc_camera_device *icd,
+ struct v4l2_control *ctrl)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct sh_mobile_ceu_dev *pcdev = ici->priv;
+ u32 val;
+
+ switch (ctrl->id) {
+ case V4L2_CID_SHARPNESS:
+ val = ceu_read(pcdev, CLFCR);
+ ctrl->value = val ^ 1;
+ return 0;
+ }
+ return -ENOIOCTLCMD;
+}
+
+static int sh_mobile_ceu_set_ctrl(struct soc_camera_device *icd,
+ struct v4l2_control *ctrl)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+ struct sh_mobile_ceu_dev *pcdev = ici->priv;
+
+ switch (ctrl->id) {
+ case V4L2_CID_SHARPNESS:
+ switch (icd->current_fmt->fourcc) {
+ case V4L2_PIX_FMT_NV12:
+ case V4L2_PIX_FMT_NV21:
+ case V4L2_PIX_FMT_NV16:
+ case V4L2_PIX_FMT_NV61:
+ ceu_write(pcdev, CLFCR, !ctrl->value);
+ return 0;
+ }
+ return -EINVAL;
+ }
+ return -ENOIOCTLCMD;
+}
+
+static const struct v4l2_queryctrl sh_mobile_ceu_controls[] = {
+ {
+ .id = V4L2_CID_SHARPNESS,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Low-pass filter",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+};
+
static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
.owner = THIS_MODULE,
.add = sh_mobile_ceu_add_device,
@@ -792,11 +840,15 @@ static struct soc_camera_host_ops sh_mobile_ceu_host_ops
= {
.set_crop = sh_mobile_ceu_set_crop,
.set_fmt = sh_mobile_ceu_set_fmt,
.try_fmt = sh_mobile_ceu_try_fmt,
+ .set_ctrl = sh_mobile_ceu_set_ctrl,
+ .get_ctrl = sh_mobile_ceu_get_ctrl,
.reqbufs = sh_mobile_ceu_reqbufs,
.poll = sh_mobile_ceu_poll,
.querycap = sh_mobile_ceu_querycap,
.set_bus_param = sh_mobile_ceu_set_bus_param,
.init_videobuf = sh_mobile_ceu_init_videobuf,
+ .controls = sh_mobile_ceu_controls,
+ .num_controls = ARRAY_SIZE(sh_mobile_ceu_controls),
};
static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev)
--
1.6.2.4
--
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