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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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adb65bc71c
videodev converts old-style controls to an extended control so the ivtv and cx18 drivers no longer have to handle both. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
309 lines
8.2 KiB
C
309 lines
8.2 KiB
C
/*
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ioctl control functions
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Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
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Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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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, or
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(at your option) any later version.
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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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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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#include "ivtv-driver.h"
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#include "ivtv-cards.h"
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#include "ivtv-ioctl.h"
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#include "ivtv-routing.h"
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#include "ivtv-i2c.h"
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#include "ivtv-mailbox.h"
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#include "ivtv-controls.h"
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static const u32 user_ctrls[] = {
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V4L2_CID_USER_CLASS,
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V4L2_CID_BRIGHTNESS,
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V4L2_CID_CONTRAST,
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V4L2_CID_SATURATION,
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V4L2_CID_HUE,
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V4L2_CID_AUDIO_VOLUME,
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V4L2_CID_AUDIO_BALANCE,
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V4L2_CID_AUDIO_BASS,
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V4L2_CID_AUDIO_TREBLE,
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V4L2_CID_AUDIO_MUTE,
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V4L2_CID_AUDIO_LOUDNESS,
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0
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};
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static const u32 *ctrl_classes[] = {
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user_ctrls,
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cx2341x_mpeg_ctrls,
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NULL
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};
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int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
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{
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struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
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const char *name;
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qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
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if (qctrl->id == 0)
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return -EINVAL;
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switch (qctrl->id) {
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/* Standard V4L2 controls */
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case V4L2_CID_BRIGHTNESS:
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case V4L2_CID_HUE:
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case V4L2_CID_SATURATION:
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case V4L2_CID_CONTRAST:
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if (itv->video_dec_func(itv, VIDIOC_QUERYCTRL, qctrl))
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qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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case V4L2_CID_AUDIO_LOUDNESS:
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if (ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_QUERYCTRL, qctrl))
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qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
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return 0;
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default:
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if (cx2341x_ctrl_query(&itv->params, qctrl))
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qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
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return 0;
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}
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strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
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qctrl->name[sizeof(qctrl->name) - 1] = 0;
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return 0;
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}
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int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
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{
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struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
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struct v4l2_queryctrl qctrl;
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qctrl.id = qmenu->id;
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ivtv_queryctrl(file, fh, &qctrl);
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return v4l2_ctrl_query_menu(qmenu, &qctrl,
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cx2341x_ctrl_get_menu(&itv->params, qmenu->id));
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}
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static int ivtv_try_ctrl(struct file *file, void *fh,
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struct v4l2_ext_control *vctrl)
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{
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struct v4l2_queryctrl qctrl;
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const char **menu_items = NULL;
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int err;
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qctrl.id = vctrl->id;
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err = ivtv_queryctrl(file, fh, &qctrl);
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if (err)
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return err;
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if (qctrl.type == V4L2_CTRL_TYPE_MENU)
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menu_items = v4l2_ctrl_get_menu(qctrl.id);
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return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
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}
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static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
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{
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switch (vctrl->id) {
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/* Standard V4L2 controls */
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case V4L2_CID_BRIGHTNESS:
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case V4L2_CID_HUE:
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case V4L2_CID_SATURATION:
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case V4L2_CID_CONTRAST:
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return itv->video_dec_func(itv, VIDIOC_S_CTRL, vctrl);
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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case V4L2_CID_AUDIO_LOUDNESS:
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return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_S_CTRL, vctrl);
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default:
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IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
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return -EINVAL;
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}
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return 0;
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}
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static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
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{
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switch (vctrl->id) {
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/* Standard V4L2 controls */
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case V4L2_CID_BRIGHTNESS:
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case V4L2_CID_HUE:
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case V4L2_CID_SATURATION:
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case V4L2_CID_CONTRAST:
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return itv->video_dec_func(itv, VIDIOC_G_CTRL, vctrl);
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case V4L2_CID_AUDIO_VOLUME:
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case V4L2_CID_AUDIO_MUTE:
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case V4L2_CID_AUDIO_BALANCE:
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case V4L2_CID_AUDIO_BASS:
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case V4L2_CID_AUDIO_TREBLE:
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case V4L2_CID_AUDIO_LOUDNESS:
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return ivtv_i2c_hw(itv, itv->card->hw_audio_ctrl, VIDIOC_G_CTRL, vctrl);
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default:
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IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
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return -EINVAL;
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}
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return 0;
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}
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static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fmt)
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{
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if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
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return -EINVAL;
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if (atomic_read(&itv->capturing) > 0)
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return -EBUSY;
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/* First try to allocate sliced VBI buffers if needed. */
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if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) {
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int i;
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for (i = 0; i < IVTV_VBI_FRAMES; i++) {
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/* Yuck, hardcoded. Needs to be a define */
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itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL);
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if (itv->vbi.sliced_mpeg_data[i] == NULL) {
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while (--i >= 0) {
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kfree(itv->vbi.sliced_mpeg_data[i]);
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itv->vbi.sliced_mpeg_data[i] = NULL;
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}
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return -ENOMEM;
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}
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}
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}
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itv->vbi.insert_mpeg = fmt;
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if (itv->vbi.insert_mpeg == 0) {
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return 0;
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}
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/* Need sliced data for mpeg insertion */
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if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
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if (itv->is_60hz)
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itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
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else
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itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
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ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
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}
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return 0;
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}
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int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
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{
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struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
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struct v4l2_control ctrl;
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if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
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int i;
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int err = 0;
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for (i = 0; i < c->count; i++) {
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ctrl.id = c->controls[i].id;
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ctrl.value = c->controls[i].value;
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err = ivtv_g_ctrl(itv, &ctrl);
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c->controls[i].value = ctrl.value;
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if (err) {
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c->error_idx = i;
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break;
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}
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}
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return err;
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}
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if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
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return cx2341x_ext_ctrls(&itv->params, 0, c, VIDIOC_G_EXT_CTRLS);
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return -EINVAL;
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}
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int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
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{
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struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
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struct v4l2_control ctrl;
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if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
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int i;
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int err = 0;
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for (i = 0; i < c->count; i++) {
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ctrl.id = c->controls[i].id;
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ctrl.value = c->controls[i].value;
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err = ivtv_s_ctrl(itv, &ctrl);
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c->controls[i].value = ctrl.value;
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if (err) {
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c->error_idx = i;
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break;
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}
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}
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return err;
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}
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if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
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static u32 freqs[3] = { 44100, 48000, 32000 };
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struct cx2341x_mpeg_params p = itv->params;
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int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), c, VIDIOC_S_EXT_CTRLS);
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unsigned idx;
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if (err)
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return err;
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if (p.video_encoding != itv->params.video_encoding) {
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int is_mpeg1 = p.video_encoding ==
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V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
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struct v4l2_format fmt;
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/* fix videodecoder resolution */
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fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1);
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fmt.fmt.pix.height = itv->params.height;
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itv->video_dec_func(itv, VIDIOC_S_FMT, &fmt);
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}
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err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p);
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if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt)
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err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt);
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itv->params = p;
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itv->dualwatch_stereo_mode = p.audio_properties & 0x0300;
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idx = p.audio_properties & 0x03;
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/* The audio clock of the digitizer must match the codec sample
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rate otherwise you get some very strange effects. */
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if (idx < sizeof(freqs))
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ivtv_call_i2c_clients(itv, VIDIOC_INT_AUDIO_CLOCK_FREQ, &freqs[idx]);
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return err;
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}
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return -EINVAL;
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}
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int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
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{
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struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
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if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
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int i;
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int err = 0;
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for (i = 0; i < c->count; i++) {
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err = ivtv_try_ctrl(file, fh, &c->controls[i]);
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if (err) {
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c->error_idx = i;
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break;
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}
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}
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return err;
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}
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if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
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return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), c, VIDIOC_TRY_EXT_CTRLS);
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return -EINVAL;
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}
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