Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c
Pantelis Koukousoulas 25d8527a44 V4L/DVB (5035): Pvrusb2: Enable radio mode round #2 
This is the logic that:
  a) Ensures /sys/class/pvrusb2/sn-*/ctl_frequency/{max,min}_val are
     "automagically" reset to sane values on each mode change.

  b) Allows tuning to a radio frequency by something like:
     echo `perl -e "print int(94.9*16000 + 0.5)"` \
       > /sys/class/pvrusb2/sn-*/ctl_input/cur_val


The trick was to take advantage of the already existing .get_{min,max}_value
function pointers in pvr2_ctrl, to "dynamically override" the hardcoded values
for min/max frequency at runtime.

For a moment I thought to dispose of the hardcoded MIN/MAX_FREQ and use the
hirange/lowrange fields of the v4l2_tuner struct instead, but then I see that
tuner-core.c kinda hardcodes these as well, so I decided to not bother.

Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21 13:34:22 -02:00

261 lines
5.9 KiB
C
Raw Blame History

/*
*
* $Id$
*
* 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
*
*/
#include "pvrusb2-i2c-cmd-v4l2.h"
#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <linux/videodev2.h>
#include <media/v4l2-common.h> /* AUDC_SET_RADIO */
static void set_standard(struct pvr2_hdw *hdw)
{
v4l2_std_id vs;
vs = hdw->std_mask_cur;
pvr2_trace(PVR2_TRACE_CHIPS,
"i2c v4l2 set_standard(0x%llx)",(long long unsigned)vs);
pvr2_i2c_core_cmd(hdw,VIDIOC_S_STD,&vs);
}
static int check_standard(struct pvr2_hdw *hdw)
{
return hdw->std_dirty != 0;
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_standard = {
.check = check_standard,
.update = set_standard,
.name = "v4l2_standard",
};
static void set_radio(struct pvr2_hdw *hdw)
{
pvr2_trace(PVR2_TRACE_CHIPS,
"i2c v4l2 set_radio()");
if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
pvr2_i2c_core_cmd(hdw,AUDC_SET_RADIO,NULL);
} else {
set_standard(hdw);
}
}
static int check_radio(struct pvr2_hdw *hdw)
{
return hdw->input_dirty != 0;
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_radio = {
.check = check_radio,
.update = set_radio,
.name = "v4l2_radio",
};
static void set_bcsh(struct pvr2_hdw *hdw)
{
struct v4l2_control ctrl;
pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_bcsh"
" b=%d c=%d s=%d h=%d",
hdw->brightness_val,hdw->contrast_val,
hdw->saturation_val,hdw->hue_val);
memset(&ctrl,0,sizeof(ctrl));
ctrl.id = V4L2_CID_BRIGHTNESS;
ctrl.value = hdw->brightness_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_CONTRAST;
ctrl.value = hdw->contrast_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_SATURATION;
ctrl.value = hdw->saturation_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_HUE;
ctrl.value = hdw->hue_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
}
static int check_bcsh(struct pvr2_hdw *hdw)
{
return (hdw->brightness_dirty ||
hdw->contrast_dirty ||
hdw->saturation_dirty ||
hdw->hue_dirty);
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_bcsh = {
.check = check_bcsh,
.update = set_bcsh,
.name = "v4l2_bcsh",
};
static void set_volume(struct pvr2_hdw *hdw)
{
struct v4l2_control ctrl;
pvr2_trace(PVR2_TRACE_CHIPS,
"i2c v4l2 set_volume"
"(vol=%d bal=%d bas=%d treb=%d mute=%d)",
hdw->volume_val,
hdw->balance_val,
hdw->bass_val,
hdw->treble_val,
hdw->mute_val);
memset(&ctrl,0,sizeof(ctrl));
ctrl.id = V4L2_CID_AUDIO_MUTE;
ctrl.value = hdw->mute_val ? 1 : 0;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_AUDIO_VOLUME;
ctrl.value = hdw->volume_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_AUDIO_BALANCE;
ctrl.value = hdw->balance_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_AUDIO_BASS;
ctrl.value = hdw->bass_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
ctrl.id = V4L2_CID_AUDIO_TREBLE;
ctrl.value = hdw->treble_val;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
}
static int check_volume(struct pvr2_hdw *hdw)
{
return (hdw->volume_dirty ||
hdw->balance_dirty ||
hdw->bass_dirty ||
hdw->treble_dirty ||
hdw->mute_dirty);
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_volume = {
.check = check_volume,
.update = set_volume,
.name = "v4l2_volume",
};
static void set_frequency(struct pvr2_hdw *hdw)
{
unsigned long fv;
struct v4l2_frequency freq;
fv = hdw->freqVal;
pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_freq(%lu)",fv);
memset(&freq,0,sizeof(freq));
if (hdw->input_val == PVR2_CVAL_INPUT_TV)
fv /= 62500;
freq.frequency = fv;
freq.tuner = 0;
freq.type = (hdw->input_val == PVR2_CVAL_INPUT_RADIO) ?
V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
pvr2_i2c_core_cmd(hdw,VIDIOC_S_FREQUENCY,&freq);
}
static int check_frequency(struct pvr2_hdw *hdw)
{
return hdw->freqDirty != 0;
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_frequency = {
.check = check_frequency,
.update = set_frequency,
.name = "v4l2_freq",
};
static void set_size(struct pvr2_hdw *hdw)
{
struct v4l2_format fmt;
memset(&fmt,0,sizeof(fmt));
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
fmt.fmt.pix.width = hdw->res_hor_val;
fmt.fmt.pix.height = hdw->res_ver_val;
pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_size(%dx%d)",
fmt.fmt.pix.width,fmt.fmt.pix.height);
pvr2_i2c_core_cmd(hdw,VIDIOC_S_FMT,&fmt);
}
static int check_size(struct pvr2_hdw *hdw)
{
return (hdw->res_hor_dirty || hdw->res_ver_dirty);
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_size = {
.check = check_size,
.update = set_size,
.name = "v4l2_size",
};
static void do_log(struct pvr2_hdw *hdw)
{
pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 do_log()");
pvr2_i2c_core_cmd(hdw,VIDIOC_LOG_STATUS,NULL);
}
static int check_log(struct pvr2_hdw *hdw)
{
return hdw->log_requested != 0;
}
const struct pvr2_i2c_op pvr2_i2c_op_v4l2_log = {
.check = check_log,
.update = do_log,
.name = "v4l2_log",
};
void pvr2_v4l2_cmd_stream(struct pvr2_i2c_client *cp,int fl)
{
pvr2_i2c_client_cmd(cp,
(fl ? VIDIOC_STREAMON : VIDIOC_STREAMOFF),NULL);
}
/*
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: ***
*/
Reference in a new issue View git blame Copy permalink