2 ioctl control functions
3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
4 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "ivtv-driver.h"
22 #include "ivtv-cards.h"
23 #include "ivtv-ioctl.h"
24 #include "ivtv-routing.h"
26 #include "ivtv-mailbox.h"
27 #include "ivtv-controls.h"
29 /* Must be sorted from low to high control ID! */
30 static const u32 user_ctrls[] = {
36 V4L2_CID_AUDIO_VOLUME,
37 V4L2_CID_AUDIO_BALANCE,
39 V4L2_CID_AUDIO_TREBLE,
41 V4L2_CID_AUDIO_LOUDNESS,
45 static const u32 *ctrl_classes[] = {
52 int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
54 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
57 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
62 /* Standard V4L2 controls */
63 case V4L2_CID_USER_CLASS:
64 return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
65 case V4L2_CID_BRIGHTNESS:
67 case V4L2_CID_SATURATION:
68 case V4L2_CID_CONTRAST:
69 if (v4l2_subdev_call(itv->sd_video, core, queryctrl, qctrl))
70 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
73 case V4L2_CID_AUDIO_VOLUME:
74 case V4L2_CID_AUDIO_MUTE:
75 case V4L2_CID_AUDIO_BALANCE:
76 case V4L2_CID_AUDIO_BASS:
77 case V4L2_CID_AUDIO_TREBLE:
78 case V4L2_CID_AUDIO_LOUDNESS:
79 if (v4l2_subdev_call(itv->sd_audio, core, queryctrl, qctrl))
80 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
84 if (cx2341x_ctrl_query(&itv->params, qctrl))
85 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
88 strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
89 qctrl->name[sizeof(qctrl->name) - 1] = 0;
93 int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
95 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
96 struct v4l2_queryctrl qctrl;
99 ivtv_queryctrl(file, fh, &qctrl);
100 return v4l2_ctrl_query_menu(qmenu, &qctrl,
101 cx2341x_ctrl_get_menu(&itv->params, qmenu->id));
104 static int ivtv_try_ctrl(struct file *file, void *fh,
105 struct v4l2_ext_control *vctrl)
107 struct v4l2_queryctrl qctrl;
108 const char **menu_items = NULL;
111 qctrl.id = vctrl->id;
112 err = ivtv_queryctrl(file, fh, &qctrl);
115 if (qctrl.type == V4L2_CTRL_TYPE_MENU)
116 menu_items = v4l2_ctrl_get_menu(qctrl.id);
117 return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
120 static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
123 /* Standard V4L2 controls */
124 case V4L2_CID_BRIGHTNESS:
126 case V4L2_CID_SATURATION:
127 case V4L2_CID_CONTRAST:
128 return v4l2_subdev_call(itv->sd_video, core, s_ctrl, vctrl);
130 case V4L2_CID_AUDIO_VOLUME:
131 case V4L2_CID_AUDIO_MUTE:
132 case V4L2_CID_AUDIO_BALANCE:
133 case V4L2_CID_AUDIO_BASS:
134 case V4L2_CID_AUDIO_TREBLE:
135 case V4L2_CID_AUDIO_LOUDNESS:
136 return v4l2_subdev_call(itv->sd_audio, core, s_ctrl, vctrl);
139 IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
145 static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
148 /* Standard V4L2 controls */
149 case V4L2_CID_BRIGHTNESS:
151 case V4L2_CID_SATURATION:
152 case V4L2_CID_CONTRAST:
153 return v4l2_subdev_call(itv->sd_video, core, g_ctrl, vctrl);
155 case V4L2_CID_AUDIO_VOLUME:
156 case V4L2_CID_AUDIO_MUTE:
157 case V4L2_CID_AUDIO_BALANCE:
158 case V4L2_CID_AUDIO_BASS:
159 case V4L2_CID_AUDIO_TREBLE:
160 case V4L2_CID_AUDIO_LOUDNESS:
161 return v4l2_subdev_call(itv->sd_audio, core, g_ctrl, vctrl);
163 IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
169 static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fmt)
171 if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
173 if (atomic_read(&itv->capturing) > 0)
176 /* First try to allocate sliced VBI buffers if needed. */
177 if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) {
180 for (i = 0; i < IVTV_VBI_FRAMES; i++) {
181 /* Yuck, hardcoded. Needs to be a define */
182 itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL);
183 if (itv->vbi.sliced_mpeg_data[i] == NULL) {
185 kfree(itv->vbi.sliced_mpeg_data[i]);
186 itv->vbi.sliced_mpeg_data[i] = NULL;
193 itv->vbi.insert_mpeg = fmt;
195 if (itv->vbi.insert_mpeg == 0) {
198 /* Need sliced data for mpeg insertion */
199 if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
201 itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
203 itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
204 ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
209 int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
211 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
212 struct v4l2_control ctrl;
214 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
218 for (i = 0; i < c->count; i++) {
219 ctrl.id = c->controls[i].id;
220 ctrl.value = c->controls[i].value;
221 err = ivtv_g_ctrl(itv, &ctrl);
222 c->controls[i].value = ctrl.value;
230 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
231 return cx2341x_ext_ctrls(&itv->params, 0, c, VIDIOC_G_EXT_CTRLS);
235 int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
237 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
238 struct v4l2_control ctrl;
240 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
244 for (i = 0; i < c->count; i++) {
245 ctrl.id = c->controls[i].id;
246 ctrl.value = c->controls[i].value;
247 err = ivtv_s_ctrl(itv, &ctrl);
248 c->controls[i].value = ctrl.value;
256 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
257 static u32 freqs[3] = { 44100, 48000, 32000 };
258 struct cx2341x_mpeg_params p = itv->params;
259 int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), c, VIDIOC_S_EXT_CTRLS);
265 if (p.video_encoding != itv->params.video_encoding) {
266 int is_mpeg1 = p.video_encoding ==
267 V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
268 struct v4l2_format fmt;
270 /* fix videodecoder resolution */
271 fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
272 fmt.fmt.pix.width = itv->params.width / (is_mpeg1 ? 2 : 1);
273 fmt.fmt.pix.height = itv->params.height;
274 v4l2_subdev_call(itv->sd_video, video, s_fmt, &fmt);
276 err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p);
277 if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt)
278 err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt);
280 itv->dualwatch_stereo_mode = p.audio_properties & 0x0300;
281 idx = p.audio_properties & 0x03;
282 /* The audio clock of the digitizer must match the codec sample
283 rate otherwise you get some very strange effects. */
284 if (idx < sizeof(freqs))
285 ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]);
291 int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
293 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
295 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
299 for (i = 0; i < c->count; i++) {
300 err = ivtv_try_ctrl(file, fh, &c->controls[i]);
308 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
309 return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), c, VIDIOC_TRY_EXT_CTRLS);