/* ioctl control functions Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> 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, or (at your option) any later version. 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 <linux/kernel.h> #include "ivtv-driver.h" #include "ivtv-cards.h" #include "ivtv-ioctl.h" #include "ivtv-routing.h" #include "ivtv-i2c.h" #include "ivtv-mailbox.h" #include "ivtv-controls.h" /* Must be sorted from low to high control ID! */ static const u32 user_ctrls[] = { V4L2_CID_USER_CLASS, V4L2_CID_BRIGHTNESS, V4L2_CID_CONTRAST, V4L2_CID_SATURATION, V4L2_CID_HUE, V4L2_CID_AUDIO_VOLUME, V4L2_CID_AUDIO_BALANCE, V4L2_CID_AUDIO_BASS, V4L2_CID_AUDIO_TREBLE, V4L2_CID_AUDIO_MUTE, V4L2_CID_AUDIO_LOUDNESS, 0 }; static const u32 *ctrl_classes[] = { user_ctrls, cx2341x_mpeg_ctrls, NULL }; int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; const char *name; qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id); if (qctrl->id == 0) return -EINVAL; switch (qctrl->id) { /* Standard V4L2 controls */ case V4L2_CID_USER_CLASS: return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0); case V4L2_CID_BRIGHTNESS: case V4L2_CID_HUE: case V4L2_CID_SATURATION: case V4L2_CID_CONTRAST: if (v4l2_subdev_call(itv->sd_video, core, queryctrl, qctrl)) qctrl->flags |= V4L2_CTRL_FLAG_DISABLED; return 0; case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_LOUDNESS: if (v4l2_subdev_call(itv->sd_audio, core, queryctrl, qctrl)) qctrl->flags |= V4L2_CTRL_FLAG_DISABLED; return 0; default: if (cx2341x_ctrl_query(&itv->params, qctrl)) qctrl->flags |= V4L2_CTRL_FLAG_DISABLED; return 0; } strncpy(qctrl->name, name, sizeof(qctrl->name) - 1); qctrl->name[sizeof(qctrl->name) - 1] = 0; return 0; } int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; struct v4l2_queryctrl qctrl; qctrl.id = qmenu->id; ivtv_queryctrl(file, fh, &qctrl); return v4l2_ctrl_query_menu(qmenu, &qctrl, cx2341x_ctrl_get_menu(&itv->params, qmenu->id)); } static int ivtv_try_ctrl(struct file *file, void *fh, struct v4l2_ext_control *vctrl) { struct v4l2_queryctrl qctrl; const char **menu_items = NULL; int err; qctrl.id = vctrl->id; err = ivtv_queryctrl(file, fh, &qctrl); if (err) return err; if (qctrl.type == V4L2_CTRL_TYPE_MENU) menu_items = v4l2_ctrl_get_menu(qctrl.id); return v4l2_ctrl_check(vctrl, &qctrl, menu_items); } static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) { switch (vctrl->id) { /* Standard V4L2 controls */ case V4L2_CID_BRIGHTNESS: case V4L2_CID_HUE: case V4L2_CID_SATURATION: case V4L2_CID_CONTRAST: return v4l2_subdev_call(itv->sd_video, core, s_ctrl, vctrl); case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_LOUDNESS: return v4l2_subdev_call(itv->sd_audio, core, s_ctrl, vctrl); default: IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; } static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl) { switch (vctrl->id) { /* Standard V4L2 controls */ case V4L2_CID_BRIGHTNESS: case V4L2_CID_HUE: case V4L2_CID_SATURATION: case V4L2_CID_CONTRAST: return v4l2_subdev_call(itv->sd_video, core, g_ctrl, vctrl); case V4L2_CID_AUDIO_VOLUME: case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_BALANCE: case V4L2_CID_AUDIO_BASS: case V4L2_CID_AUDIO_TREBLE: case V4L2_CID_AUDIO_LOUDNESS: return v4l2_subdev_call(itv->sd_audio, core, g_ctrl, vctrl); default: IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id); return -EINVAL; } return 0; } static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fmt) { if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE)) return -EINVAL; if (atomic_read(&itv->capturing) > 0) return -EBUSY; /* First try to allocate sliced VBI buffers if needed. */ if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) { int i; for (i = 0; i < IVTV_VBI_FRAMES; i++) { /* Yuck, hardcoded. Needs to be a define */ itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL); if (itv->vbi.sliced_mpeg_data[i] == NULL) { while (--i >= 0) { kfree(itv->vbi.sliced_mpeg_data[i]); itv->vbi.sliced_mpeg_data[i] = NULL; } return -ENOMEM; } } } itv->vbi.insert_mpeg = fmt; if (itv->vbi.insert_mpeg == 0) { return 0; } /* Need sliced data for mpeg insertion */ if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) { if (itv->is_60hz) itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525; else itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz); } return 0; } int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; struct v4l2_control ctrl; if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { int i; int err = 0; for (i = 0; i < c->count; i++) { ctrl.id = c->controls[i].id; ctrl.value = c->controls[i].value; err = ivtv_g_ctrl(itv, &ctrl); c->controls[i].value = ctrl.value; if (err) { c->error_idx = i; break; } } return err; } if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) return cx2341x_ext_ctrls(&itv->params, 0, c, VIDIOC_G_EXT_CTRLS); return -EINVAL; } int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; struct v4l2_control ctrl; if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { int i; int err = 0; for (i = 0; i < c->count; i++) { ctrl.id = c->controls[i].id; ctrl.value = c->controls[i].value; err = ivtv_s_ctrl(itv, &ctrl); c->controls[i].value = ctrl.value; if (err) { c->error_idx = i; break; } } return err; } if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) { static u32 freqs[3] = { 44100, 48000, 32000 }; struct cx2341x_mpeg_params p = itv->params; int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), c, VIDIOC_S_EXT_CTRLS); unsigned idx; if (err) return err; if (p.video_encoding != itv->params.video_encoding) { int is_mpeg1 = p.video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; struct v4l2_format fmt; /* fix videodecoder resolution */ fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1); fmt.fmt.pix.height = itv->params.height; v4l2_subdev_call(itv->sd_video, video, s_fmt, &fmt); } err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p); if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt) err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt); itv->params = p; itv->dualwatch_stereo_mode = p.audio_properties & 0x0300; idx = p.audio_properties & 0x03; /* The audio clock of the digitizer must match the codec sample rate otherwise you get some very strange effects. */ if (idx < ARRAY_SIZE(freqs)) ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); return err; } return -EINVAL; } int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv; if (c->ctrl_class == V4L2_CTRL_CLASS_USER) { int i; int err = 0; for (i = 0; i < c->count; i++) { err = ivtv_try_ctrl(file, fh, &c->controls[i]); if (err) { c->error_idx = i; break; } } return err; } if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), c, VIDIOC_TRY_EXT_CTRLS); return -EINVAL; }