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[media] tlg2300: implement the control framework

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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-07-16 10:22:48 -03:00 committed by Mauro Carvalho Chehab
parent 7cb2398750
commit f29056ebd9
2 changed files with 41 additions and 88 deletions
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1
drivers/media/usb/tlg2300/pd-common.h
View File

@ -64,6 +64,7 @@ struct running_context {
struct video_data {
/* v4l2 video device */
struct video_device v_dev;
struct v4l2_ctrl_handler ctrl_handler;
/* the working context */
struct running_context context;

128
drivers/media/usb/tlg2300/pd-video.c
View File

@ -8,6 +8,7 @@
#include <media/v4l2-ioctl.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ctrls.h>
#include "pd-common.h"
#include "vendorcmds.h"
@ -82,31 +83,6 @@ static const struct pd_input pd_inputs[] = {
};
static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs);
struct poseidon_control {
struct v4l2_queryctrl v4l2_ctrl;
enum cmd_custom_param_id vc_id;
};
static struct poseidon_control controls[] = {
{
{ V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
"brightness", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_BRIGHTNESS_CTRL
}, {
{ V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
"contrast", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_CONTRAST_CTRL,
}, {
{ V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
"hue", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_HUE_CTRL,
}, {
{ V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
"saturation", 0, 10000, 1, 100, 0, },
CUST_PARM_ID_SATURATION_CTRL,
},
};
struct video_std_to_audio_std {
v4l2_std_id video_std;
int audio_std;
@ -940,68 +916,28 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
return 0;
}
static struct poseidon_control *check_control_id(u32 id)
{
struct poseidon_control *control = &controls[0];
int array_size = ARRAY_SIZE(controls);
for (; control < &controls[array_size]; control++)
if (control->v4l2_ctrl.id == id)
return control;
return NULL;
}
static int vidioc_queryctrl(struct file *file, void *fh,
struct v4l2_queryctrl *a)
{
struct poseidon_control *control = NULL;
control = check_control_id(a->id);
if (!control)
return -EINVAL;
*a = control->v4l2_ctrl;
return 0;
}
static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl)
{
struct front_face *front = fh;
struct poseidon *pd = front->pd;
struct poseidon_control *control = NULL;
struct tuner_custom_parameter_s tuner_param;
s32 ret = 0, cmd_status;
control = check_control_id(ctrl->id);
if (!control)
return -EINVAL;
mutex_lock(&pd->lock);
ret = send_get_req(pd, TUNER_CUSTOM_PARAMETER, control->vc_id,
&tuner_param, &cmd_status, sizeof(tuner_param));
mutex_unlock(&pd->lock);
if (ret || cmd_status)
return -1;
ctrl->value = tuner_param.param_value;
return 0;
}
static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
static int tlg_s_ctrl(struct v4l2_ctrl *c)
{
struct poseidon *pd = container_of(c->handler, struct poseidon,
video_data.ctrl_handler);
struct tuner_custom_parameter_s param = {0};
struct poseidon_control *control = NULL;
struct front_face *front = fh;
struct poseidon *pd = front->pd;
s32 ret = 0, cmd_status, params;
control = check_control_id(a->id);
if (!control)
return -EINVAL;
param.param_value = a->value;
param.param_id = control->vc_id;
switch (c->id) {
case V4L2_CID_BRIGHTNESS:
param.param_id = CUST_PARM_ID_BRIGHTNESS_CTRL;
break;
case V4L2_CID_CONTRAST:
param.param_id = CUST_PARM_ID_CONTRAST_CTRL;
break;
case V4L2_CID_HUE:
param.param_id = CUST_PARM_ID_HUE_CTRL;
break;
case V4L2_CID_SATURATION:
param.param_id = CUST_PARM_ID_SATURATION_CTRL;
break;
}
param.param_value = c->val;
params = *(s32 *)&param; /* temp code */
mutex_lock(&pd->lock);
@ -1587,11 +1523,6 @@ static const struct v4l2_ioctl_ops pd_video_ioctl_ops = {
/* Stream on/off */
.vidioc_streamon = vidioc_streamon,
.vidioc_streamoff = vidioc_streamoff,
/* Control handling */
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
};
static struct video_device pd_video_template = {
@ -1603,6 +1534,10 @@ static struct video_device pd_video_template = {
.ioctl_ops = &pd_video_ioctl_ops,
};
static const struct v4l2_ctrl_ops tlg_ctrl_ops = {
.s_ctrl = tlg_s_ctrl,
};
void pd_video_exit(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
@ -1610,6 +1545,7 @@ void pd_video_exit(struct poseidon *pd)
video_unregister_device(&video->v_dev);
video_unregister_device(&vbi->v_dev);
v4l2_ctrl_handler_free(&video->ctrl_handler);
log();
}
@ -1617,12 +1553,27 @@ int pd_video_init(struct poseidon *pd)
{
struct video_data *video = &pd->video_data;
struct vbi_data *vbi = &pd->vbi_data;
struct v4l2_ctrl_handler *hdl = &video->ctrl_handler;
u32 freq = TUNER_FREQ_MIN / 62500;
int ret = -ENOMEM;
v4l2_ctrl_handler_init(hdl, 4);
v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_BRIGHTNESS,
0, 10000, 1, 100);
v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_CONTRAST,
0, 10000, 1, 100);
v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_HUE,
0, 10000, 1, 100);
v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_SATURATION,
0, 10000, 1, 100);
if (hdl->error) {
v4l2_ctrl_handler_free(hdl);
return hdl->error;
}
set_frequency(pd, &freq);
video->v_dev = pd_video_template;
video->v_dev.v4l2_dev = &pd->v4l2_dev;
video->v_dev.ctrl_handler = hdl;
video_set_drvdata(&video->v_dev, pd);
ret = video_register_device(&video->v_dev, VFL_TYPE_GRABBER, -1);
@ -1632,6 +1583,7 @@ int pd_video_init(struct poseidon *pd)
/* VBI uses the same template as video */
vbi->v_dev = pd_video_template;
vbi->v_dev.v4l2_dev = &pd->v4l2_dev;
vbi->v_dev.ctrl_handler = hdl;
video_set_drvdata(&vbi->v_dev, pd);
ret = video_register_device(&vbi->v_dev, VFL_TYPE_VBI, -1);
if (ret != 0)