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[media] cx25821: convert to the control framework

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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-04-13 08:38:14 -03:00 committed by Mauro Carvalho Chehab
parent 467870ca26
commit f8d7ee7091
3 changed files with 41 additions and 184 deletions
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5
drivers/media/pci/cx25821/cx25821-core.c
View file

@ -880,8 +880,11 @@ static int cx25821_dev_setup(struct cx25821_dev *dev)
/* Apply a sensible clock frequency for the PCIe bridge */
dev->clk_freq = 28000000;
for (i = 0; i < MAX_VID_CHANNEL_NUM; i++)
for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
dev->channels[i].dev = dev;
dev->channels[i].id = i;
dev->channels[i].sram_channels = &cx25821_sram_channels[i];
}
if (dev->nr > 1)
CX25821_INFO("dev->nr > 1!");

210
drivers/media/pci/cx25821/cx25821-video.c
View file

@ -1188,192 +1188,29 @@ int cx25821_vidioc_s_register(struct file *file, void *fh,
#endif
/*****************************************************************************/
static const struct v4l2_queryctrl no_ctl = {
.name = "42",
.flags = V4L2_CTRL_FLAG_DISABLED,
};
static struct v4l2_queryctrl cx25821_ctls[] = {
/* --- video --- */
{
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.minimum = 0,
.maximum = 10000,
.step = 1,
.default_value = 6200,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.minimum = 0,
.maximum = 10000,
.step = 1,
.default_value = 5000,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.minimum = 0,
.maximum = 10000,
.step = 1,
.default_value = 5000,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_HUE,
.name = "Hue",
.minimum = 0,
.maximum = 10000,
.step = 1,
.default_value = 5000,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
static int cx25821_s_ctrl(struct v4l2_ctrl *ctrl)
{
int i;
struct cx25821_channel *chan =
container_of(ctrl->handler, struct cx25821_channel, hdl);
struct cx25821_dev *dev = chan->dev;
if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
return -EINVAL;
for (i = 0; i < CX25821_CTLS; i++)
if (cx25821_ctls[i].id == qctrl->id)
break;
if (i == CX25821_CTLS) {
*qctrl = no_ctl;
return 0;
}
*qctrl = cx25821_ctls[i];
return 0;
}
static int cx25821_vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qctrl)
{
return cx25821_ctrl_query(qctrl);
}
/* ------------------------------------------------------------------ */
/* VIDEO CTRL IOCTLS */
static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
{
unsigned int i;
for (i = 0; i < CX25821_CTLS; i++)
if (cx25821_ctls[i].id == id)
return cx25821_ctls + i;
return NULL;
}
static int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctl)
{
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
struct cx25821_fh *fh = priv;
const struct v4l2_queryctrl *ctrl;
ctrl = ctrl_by_id(ctl->id);
if (NULL == ctrl)
return -EINVAL;
switch (ctl->id) {
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctl->value = dev->channels[fh->channel_id].ctl_bright;
medusa_set_brightness(dev, ctrl->val, chan->id);
break;
case V4L2_CID_HUE:
ctl->value = dev->channels[fh->channel_id].ctl_hue;
medusa_set_hue(dev, ctrl->val, chan->id);
break;
case V4L2_CID_CONTRAST:
ctl->value = dev->channels[fh->channel_id].ctl_contrast;
medusa_set_contrast(dev, ctrl->val, chan->id);
break;
case V4L2_CID_SATURATION:
ctl->value = dev->channels[fh->channel_id].ctl_saturation;
break;
}
return 0;
}
static int cx25821_set_control(struct cx25821_dev *dev,
struct v4l2_control *ctl, int chan_num)
{
int err;
const struct v4l2_queryctrl *ctrl;
err = -EINVAL;
ctrl = ctrl_by_id(ctl->id);
if (NULL == ctrl)
return err;
switch (ctrl->type) {
case V4L2_CTRL_TYPE_BOOLEAN:
case V4L2_CTRL_TYPE_MENU:
case V4L2_CTRL_TYPE_INTEGER:
if (ctl->value < ctrl->minimum)
ctl->value = ctrl->minimum;
if (ctl->value > ctrl->maximum)
ctl->value = ctrl->maximum;
medusa_set_saturation(dev, ctrl->val, chan->id);
break;
default:
/* nothing */ ;
}
switch (ctl->id) {
case V4L2_CID_BRIGHTNESS:
dev->channels[chan_num].ctl_bright = ctl->value;
medusa_set_brightness(dev, ctl->value, chan_num);
break;
case V4L2_CID_HUE:
dev->channels[chan_num].ctl_hue = ctl->value;
medusa_set_hue(dev, ctl->value, chan_num);
break;
case V4L2_CID_CONTRAST:
dev->channels[chan_num].ctl_contrast = ctl->value;
medusa_set_contrast(dev, ctl->value, chan_num);
break;
case V4L2_CID_SATURATION:
dev->channels[chan_num].ctl_saturation = ctl->value;
medusa_set_saturation(dev, ctl->value, chan_num);
break;
}
err = 0;
return err;
}
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctl)
{
struct cx25821_fh *fh = priv;
struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
int err;
if (fh) {
err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
fh->prio);
if (0 != err)
return err;
}
return cx25821_set_control(dev, ctl, fh->channel_id);
}
static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
{
struct v4l2_control ctrl;
int i;
for (i = 0; i < CX25821_CTLS; i++) {
ctrl.id = cx25821_ctls[i].id;
ctrl.value = cx25821_ctls[i].default_value;
cx25821_set_control(dev, &ctrl, chan_num);
return -EINVAL;
}
return 0;
}
static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
@ -1629,7 +1466,10 @@ static long cx25821_video_ioctl(struct file *file,
return video_ioctl2(file, cmd, arg);
}
/* exported stuff */
static const struct v4l2_ctrl_ops cx25821_ctrl_ops = {
.s_ctrl = cx25821_s_ctrl,
};
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
.open = video_open,
@ -1655,9 +1495,6 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_enum_input = cx25821_vidioc_enum_input,
.vidioc_g_input = cx25821_vidioc_g_input,
.vidioc_s_input = cx25821_vidioc_s_input,
.vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
.vidioc_queryctrl = cx25821_vidioc_queryctrl,
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
.vidioc_log_status = vidioc_log_status,
@ -1684,6 +1521,7 @@ void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
if (video_is_registered(&dev->channels[chan_num].vdev)) {
video_unregister_device(&dev->channels[chan_num].vdev);
v4l2_ctrl_handler_free(&dev->channels[chan_num].hdl);
btcx_riscmem_free(dev->pci,
&dev->channels[chan_num].vidq.stopper);
@ -1699,11 +1537,24 @@ int cx25821_video_register(struct cx25821_dev *dev)
for (i = 0; i < VID_CHANNEL_NUM; ++i) {
struct video_device *vdev = &dev->channels[i].vdev;
struct v4l2_ctrl_handler *hdl = &dev->channels[i].hdl;
if (i == SRAM_CH08) /* audio channel */
continue;
cx25821_init_controls(dev, i);
v4l2_ctrl_handler_init(hdl, 4);
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
V4L2_CID_BRIGHTNESS, 0, 10000, 1, 6200);
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
V4L2_CID_CONTRAST, 0, 10000, 1, 5000);
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
V4L2_CID_SATURATION, 0, 10000, 1, 5000);
v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
V4L2_CID_HUE, 0, 10000, 1, 5000);
if (hdl->error) {
err = hdl->error;
goto fail_unreg;
}
cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
dev->channels[i].sram_channels->dma_ctl, 0x11, 0);
@ -1727,6 +1578,7 @@ int cx25821_video_register(struct cx25821_dev *dev)
/* register v4l devices */
*vdev = cx25821_video_device;
vdev->v4l2_dev = &dev->v4l2_dev;
vdev->ctrl_handler = hdl;
snprintf(vdev->name, sizeof(vdev->name), "%s #%d", dev->name, i);
video_set_drvdata(vdev, dev);

10
drivers/media/pci/cx25821/cx25821.h
View file

@ -33,6 +33,7 @@
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/videobuf-dma-sg.h>
#include "btcx-risc.h"
@ -208,13 +209,14 @@ struct cx25821_data {
const struct sram_channel *channel;
};
struct cx25821_dev;
struct cx25821_channel {
unsigned id;
struct cx25821_dev *dev;
struct v4l2_prio_state prio;
int ctl_bright;
int ctl_contrast;
int ctl_hue;
int ctl_saturation;
struct v4l2_ctrl_handler hdl;
struct cx25821_data timeout_data;
struct video_device vdev;