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/*
*
* $Id: pvrusb2-video-v4l.c,v 1.5 2005/12/28 16:28:02 mcisely Exp $
*
* Copyright (C) 2005 Mike Isely <isely@pobox.com>
* Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*
This module connects the pvrusb2 driver to the I2C chip level
driver which handles device video processing. This interface is
used internally by the driver; higher level code should only
interact through the interface provided by pvrusb2-hdw.h.
This source file is specifically designed to interface with the
saa711x support that is available in the v4l available starting
with linux 2.6.15.
*/
#include "pvrusb2-video-v4l.h"
#ifndef PVR2_SUPPRESS_SAA711X
#include "pvrusb2-i2c.h"
#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <linux/videodev.h>
#include <media/v4l2-common.h>
#include <linux/errno.h>
#include <linux/slab.h>
#define pvr2_decoder_trace(...) pvr2_trace(PVR2_TRACE_DECODER,__VA_ARGS__)
static int pvr2_decoder_v4l_enable_output(struct pvr2_decoder *dcp)
{
int status;
struct pvr2_hdw *hdw = dcp->hdw;
pvr2_decoder_trace("pvr2_decoder_enable_output");
status = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_STREAMON,0);
if (status) return status;
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_RUN;
return 0;
}
static int pvr2_decoder_v4l_disable_output(struct pvr2_decoder *dcp)
{
int status;
struct pvr2_hdw *hdw = dcp->hdw;
pvr2_decoder_trace("pvr2_decoder_disable_output");
status = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_STREAMOFF,0);
if (status) return status;
hdw->subsys_enabled_mask &= ~PVR2_SUBSYS_DIGITIZER_RUN;
return 0;
}
static int pvr2_decoder_v4l_set_input(struct pvr2_decoder *dcp)
{
int status;
struct pvr2_hdw *hdw = dcp->hdw;
int v = 0;
pvr2_decoder_trace("pvr2_decoder_set_input(%d)",
hdw->controls[PVR2_CID_INPUT].value);
switch(hdw->controls[PVR2_CID_INPUT].value){
case PVR2_CVAL_INPUT_TV:
v = 4;
break;
case PVR2_CVAL_INPUT_COMPOSITE:
v = 5;
break;
case PVR2_CVAL_INPUT_SVIDEO:
v = 8;
break;
case PVR2_CVAL_INPUT_RADIO:
// ????? No idea yet what to do here
default:
return -EINVAL;
}
status = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_INPUT,&v);
if (!status) {
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_CFG_INPUT;
}
return status;
}
static int pvr2_decoder_v4l_set_bcsh(struct pvr2_decoder *dcp)
{
struct v4l2_control ctrl;
struct pvr2_hdw *hdw = dcp->hdw;
int ret;
memset(&ctrl,0,sizeof(ctrl));
pvr2_decoder_trace("pvr2_decoder_set_bcsh b=%d c=%d s=%d h=%d",
hdw->controls[PVR2_CID_BRIGHTNESS].value,
hdw->controls[PVR2_CID_CONTRAST].value,
hdw->controls[PVR2_CID_SATURATION].value,
hdw->controls[PVR2_CID_HUE].value);
ctrl.id = V4L2_CID_BRIGHTNESS;
ctrl.value = hdw->controls[PVR2_CID_BRIGHTNESS].value;
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
if (ret) return ret;
ctrl.id = V4L2_CID_CONTRAST;
ctrl.value = hdw->controls[PVR2_CID_CONTRAST].value;
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
if (ret) return ret;
ctrl.id = V4L2_CID_SATURATION;
ctrl.value = hdw->controls[PVR2_CID_SATURATION].value;
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
if (ret) return ret;
ctrl.id = V4L2_CID_HUE;
ctrl.value = hdw->controls[PVR2_CID_HUE].value;
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
if (ret) return ret;
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_CFG_BCSH;
return 0;
}
static int pvr2_decoder_v4l_is_tuned(struct pvr2_decoder *dcp)
{
struct v4l2_tuner vt;
struct pvr2_hdw *hdw = dcp->hdw;
int ret;
memset(&vt,0,sizeof(vt));
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_G_TUNER,&vt);
if (ret < 0) return -EINVAL;
return vt.signal ? 1 : 0;
}
static int pvr2_decoder_v4l_set_size(struct pvr2_decoder *dcp)
{
struct v4l2_format fmt;
struct pvr2_hdw *hdw = dcp->hdw;
int ret;
memset(&fmt,0,sizeof(fmt));
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fmt.fmt.pix.width = hdw->controls[PVR2_CID_HRES].value;
fmt.fmt.pix.height = hdw->controls[PVR2_CID_VRES].value;
pvr2_decoder_trace("pvr2_decoder_set_size(%dx%d)",
fmt.fmt.pix.width,fmt.fmt.pix.height);
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_FMT,&fmt);
if (ret) return ret;
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_CFG_SIZE;
return 0;
}
static int pvr2_decoder_v4l_set_audio(struct pvr2_decoder *dcp)
{
int ret;
struct pvr2_hdw *hdw = dcp->hdw;
u32 val;
pvr2_decoder_trace("pvr2_decoder_set_audio %d",
hdw->controls[PVR2_CID_SRATE].value);
switch (hdw->controls[PVR2_CID_SRATE].value) {
default:
case PVR2_CVAL_SRATE_48:
val = 48000;
break;
case PVR2_CVAL_SRATE_44_1:
val = 44100;
break;
}
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_INT_AUDIO_CLOCK_FREQ,&val);
if (ret) return ret;
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_CFG_AUDIO;
return 0;
}
static int pvr2_decoder_v4l_set_norm(struct pvr2_decoder *dcp)
{
v4l2_std_id std;
struct pvr2_hdw *hdw = dcp->hdw;
int status;
pvr2_decoder_trace("pvr2_decoder_set_norm %d",
hdw->controls[PVR2_CID_VIDEOSTANDARD].value);
switch (hdw->controls[PVR2_CID_VIDEOSTANDARD].value) {
default:
case PVR2_CVAL_VIDEOSTANDARD_NTSC_M:
std = V4L2_STD_NTSC_M;
break;
case PVR2_CVAL_VIDEOSTANDARD_SECAM_L:
std = V4L2_STD_SECAM;
break;
case PVR2_CVAL_VIDEOSTANDARD_PAL_I:
std = V4L2_STD_PAL_I;
break;
case PVR2_CVAL_VIDEOSTANDARD_PAL_DK:
std = V4L2_STD_PAL_DK;
break;
case PVR2_CVAL_VIDEOSTANDARD_PAL_BG:
std = V4L2_STD_PAL_BG;
break;
case PVR2_CVAL_VIDEOSTANDARD_PAL_M:
std = V4L2_STD_PAL_M;
break;
}
status = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_S_STD,&std);
if (status) return status;
hdw->subsys_enabled_mask |= PVR2_SUBSYS_DIGITIZER_CFG_NORM;
return 0;
}
static const struct pvr2_decoder_func_table pvr2_decoder_v4l_table = {
(pvr2_decoder_func)0,
(pvr2_decoder_func)pvr2_decoder_v4l_set_norm,
(pvr2_decoder_func)pvr2_decoder_v4l_set_input,
(pvr2_decoder_func)pvr2_decoder_v4l_set_size,
(pvr2_decoder_func)pvr2_decoder_v4l_set_audio,
(pvr2_decoder_func)pvr2_decoder_v4l_set_bcsh,
(pvr2_decoder_func)pvr2_decoder_v4l_is_tuned,
(pvr2_decoder_func)pvr2_decoder_v4l_enable_output,
(pvr2_decoder_func)pvr2_decoder_v4l_disable_output,
};
struct pvr2_decoder *pvr2_decoder_v4l_create(struct pvr2_hdw *hdw)
{
/* Attempt to query the decoder - let's see if it will answer */
struct v4l2_tuner vt;
int ret;
struct pvr2_decoder *dcp;
memset(&vt,0,sizeof(vt));
ret = pvr2_i2c_saa7115_cmd(hdw,VIDIOC_G_TUNER,&vt);
if (ret < 0) return 0; /* Nope, not there */
/* Yes, it's there. So initialize... */
dcp = kmalloc(sizeof(*dcp),GFP_KERNEL);
if (!dcp) return 0;
memset(dcp,0,sizeof(*dcp));
dcp->hdw = hdw;
dcp->func_table = &pvr2_decoder_v4l_table;
return dcp;
}
#endif /* PVR2_SUPPRESS_SAA711X */
/*
Stuff for Emacs to see, in order to encourage consistent editing style:
*** Local Variables: ***
*** mode: c ***
*** fill-column: 70 ***
*** tab-width: 8 ***
*** c-basic-offset: 8 ***
*** End: ***
*/
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