25d8527a44
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>
262 lines
5.9 KiB
C
262 lines
5.9 KiB
C
/*
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*
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* $Id$
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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* Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "pvrusb2-i2c-cmd-v4l2.h"
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#include "pvrusb2-hdw-internal.h"
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#include "pvrusb2-debug.h"
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h> /* AUDC_SET_RADIO */
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static void set_standard(struct pvr2_hdw *hdw)
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{
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v4l2_std_id vs;
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vs = hdw->std_mask_cur;
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pvr2_trace(PVR2_TRACE_CHIPS,
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"i2c v4l2 set_standard(0x%llx)",(long long unsigned)vs);
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_STD,&vs);
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}
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static int check_standard(struct pvr2_hdw *hdw)
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{
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return hdw->std_dirty != 0;
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_standard = {
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.check = check_standard,
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.update = set_standard,
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.name = "v4l2_standard",
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};
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static void set_radio(struct pvr2_hdw *hdw)
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{
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pvr2_trace(PVR2_TRACE_CHIPS,
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"i2c v4l2 set_radio()");
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if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
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pvr2_i2c_core_cmd(hdw,AUDC_SET_RADIO,NULL);
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} else {
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set_standard(hdw);
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}
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}
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static int check_radio(struct pvr2_hdw *hdw)
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{
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return hdw->input_dirty != 0;
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_radio = {
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.check = check_radio,
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.update = set_radio,
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.name = "v4l2_radio",
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};
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static void set_bcsh(struct pvr2_hdw *hdw)
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{
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struct v4l2_control ctrl;
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pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_bcsh"
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" b=%d c=%d s=%d h=%d",
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hdw->brightness_val,hdw->contrast_val,
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hdw->saturation_val,hdw->hue_val);
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memset(&ctrl,0,sizeof(ctrl));
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ctrl.id = V4L2_CID_BRIGHTNESS;
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ctrl.value = hdw->brightness_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_CONTRAST;
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ctrl.value = hdw->contrast_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_SATURATION;
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ctrl.value = hdw->saturation_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_HUE;
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ctrl.value = hdw->hue_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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}
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static int check_bcsh(struct pvr2_hdw *hdw)
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{
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return (hdw->brightness_dirty ||
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hdw->contrast_dirty ||
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hdw->saturation_dirty ||
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hdw->hue_dirty);
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_bcsh = {
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.check = check_bcsh,
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.update = set_bcsh,
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.name = "v4l2_bcsh",
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};
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static void set_volume(struct pvr2_hdw *hdw)
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{
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struct v4l2_control ctrl;
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pvr2_trace(PVR2_TRACE_CHIPS,
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"i2c v4l2 set_volume"
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"(vol=%d bal=%d bas=%d treb=%d mute=%d)",
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hdw->volume_val,
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hdw->balance_val,
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hdw->bass_val,
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hdw->treble_val,
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hdw->mute_val);
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memset(&ctrl,0,sizeof(ctrl));
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ctrl.id = V4L2_CID_AUDIO_MUTE;
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ctrl.value = hdw->mute_val ? 1 : 0;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_AUDIO_VOLUME;
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ctrl.value = hdw->volume_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_AUDIO_BALANCE;
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ctrl.value = hdw->balance_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_AUDIO_BASS;
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ctrl.value = hdw->bass_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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ctrl.id = V4L2_CID_AUDIO_TREBLE;
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ctrl.value = hdw->treble_val;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_CTRL,&ctrl);
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}
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static int check_volume(struct pvr2_hdw *hdw)
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{
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return (hdw->volume_dirty ||
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hdw->balance_dirty ||
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hdw->bass_dirty ||
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hdw->treble_dirty ||
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hdw->mute_dirty);
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_volume = {
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.check = check_volume,
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.update = set_volume,
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.name = "v4l2_volume",
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};
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static void set_frequency(struct pvr2_hdw *hdw)
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{
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unsigned long fv;
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struct v4l2_frequency freq;
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fv = hdw->freqVal;
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pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_freq(%lu)",fv);
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memset(&freq,0,sizeof(freq));
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if (hdw->input_val == PVR2_CVAL_INPUT_TV)
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fv /= 62500;
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freq.frequency = fv;
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freq.tuner = 0;
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freq.type = (hdw->input_val == PVR2_CVAL_INPUT_RADIO) ?
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V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_FREQUENCY,&freq);
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}
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static int check_frequency(struct pvr2_hdw *hdw)
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{
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return hdw->freqDirty != 0;
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_frequency = {
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.check = check_frequency,
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.update = set_frequency,
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.name = "v4l2_freq",
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};
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static void set_size(struct pvr2_hdw *hdw)
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{
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struct v4l2_format fmt;
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memset(&fmt,0,sizeof(fmt));
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fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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fmt.fmt.pix.width = hdw->res_hor_val;
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fmt.fmt.pix.height = hdw->res_ver_val;
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pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_size(%dx%d)",
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fmt.fmt.pix.width,fmt.fmt.pix.height);
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pvr2_i2c_core_cmd(hdw,VIDIOC_S_FMT,&fmt);
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}
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static int check_size(struct pvr2_hdw *hdw)
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{
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return (hdw->res_hor_dirty || hdw->res_ver_dirty);
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_size = {
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.check = check_size,
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.update = set_size,
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.name = "v4l2_size",
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};
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static void do_log(struct pvr2_hdw *hdw)
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{
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pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 do_log()");
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pvr2_i2c_core_cmd(hdw,VIDIOC_LOG_STATUS,NULL);
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}
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static int check_log(struct pvr2_hdw *hdw)
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{
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return hdw->log_requested != 0;
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}
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const struct pvr2_i2c_op pvr2_i2c_op_v4l2_log = {
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.check = check_log,
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.update = do_log,
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.name = "v4l2_log",
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};
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void pvr2_v4l2_cmd_stream(struct pvr2_i2c_client *cp,int fl)
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{
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pvr2_i2c_client_cmd(cp,
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(fl ? VIDIOC_STREAMON : VIDIOC_STREAMOFF),NULL);
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}
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/*
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Stuff for Emacs to see, in order to encourage consistent editing style:
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*** Local Variables: ***
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*** mode: c ***
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*** fill-column: 70 ***
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*** tab-width: 8 ***
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*** c-basic-offset: 8 ***
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*** End: ***
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*/
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