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
20 #include <linux/kernel.h>
21 #include <linux/slab.h>
23 #include "ivtv-driver.h"
24 #include "ivtv-cards.h"
25 #include "ivtv-ioctl.h"
26 #include "ivtv-routing.h"
28 #include "ivtv-mailbox.h"
29 #include "ivtv-controls.h"
31 /* Must be sorted from low to high control ID! */
32 static const u32 user_ctrls[] = {
38 V4L2_CID_AUDIO_VOLUME,
39 V4L2_CID_AUDIO_BALANCE,
41 V4L2_CID_AUDIO_TREBLE,
43 V4L2_CID_AUDIO_LOUDNESS,
47 static const u32 *ctrl_classes[] = {
54 int ivtv_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
56 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
59 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
64 /* Standard V4L2 controls */
65 case V4L2_CID_USER_CLASS:
66 return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
67 case V4L2_CID_BRIGHTNESS:
69 case V4L2_CID_SATURATION:
70 case V4L2_CID_CONTRAST:
71 if (v4l2_subdev_call(itv->sd_video, core, queryctrl, qctrl))
72 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
75 case V4L2_CID_AUDIO_VOLUME:
76 case V4L2_CID_AUDIO_MUTE:
77 case V4L2_CID_AUDIO_BALANCE:
78 case V4L2_CID_AUDIO_BASS:
79 case V4L2_CID_AUDIO_TREBLE:
80 case V4L2_CID_AUDIO_LOUDNESS:
81 if (v4l2_subdev_call(itv->sd_audio, core, queryctrl, qctrl))
82 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
86 if (cx2341x_ctrl_query(&itv->params, qctrl))
87 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
90 strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
91 qctrl->name[sizeof(qctrl->name) - 1] = 0;
95 int ivtv_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
97 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
98 struct v4l2_queryctrl qctrl;
100 qctrl.id = qmenu->id;
101 ivtv_queryctrl(file, fh, &qctrl);
102 return v4l2_ctrl_query_menu(qmenu, &qctrl,
103 cx2341x_ctrl_get_menu(&itv->params, qmenu->id));
106 static int ivtv_try_ctrl(struct file *file, void *fh,
107 struct v4l2_ext_control *vctrl)
109 struct v4l2_queryctrl qctrl;
110 const char **menu_items = NULL;
113 qctrl.id = vctrl->id;
114 err = ivtv_queryctrl(file, fh, &qctrl);
117 if (qctrl.type == V4L2_CTRL_TYPE_MENU)
118 menu_items = v4l2_ctrl_get_menu(qctrl.id);
119 return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
122 static int ivtv_s_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
125 /* Standard V4L2 controls */
126 case V4L2_CID_BRIGHTNESS:
128 case V4L2_CID_SATURATION:
129 case V4L2_CID_CONTRAST:
130 return v4l2_subdev_call(itv->sd_video, core, s_ctrl, vctrl);
132 case V4L2_CID_AUDIO_VOLUME:
133 case V4L2_CID_AUDIO_MUTE:
134 case V4L2_CID_AUDIO_BALANCE:
135 case V4L2_CID_AUDIO_BASS:
136 case V4L2_CID_AUDIO_TREBLE:
137 case V4L2_CID_AUDIO_LOUDNESS:
138 return v4l2_subdev_call(itv->sd_audio, core, s_ctrl, vctrl);
141 IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
147 static int ivtv_g_ctrl(struct ivtv *itv, struct v4l2_control *vctrl)
150 /* Standard V4L2 controls */
151 case V4L2_CID_BRIGHTNESS:
153 case V4L2_CID_SATURATION:
154 case V4L2_CID_CONTRAST:
155 return v4l2_subdev_call(itv->sd_video, core, g_ctrl, vctrl);
157 case V4L2_CID_AUDIO_VOLUME:
158 case V4L2_CID_AUDIO_MUTE:
159 case V4L2_CID_AUDIO_BALANCE:
160 case V4L2_CID_AUDIO_BASS:
161 case V4L2_CID_AUDIO_TREBLE:
162 case V4L2_CID_AUDIO_LOUDNESS:
163 return v4l2_subdev_call(itv->sd_audio, core, g_ctrl, vctrl);
165 IVTV_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
171 static int ivtv_setup_vbi_fmt(struct ivtv *itv, enum v4l2_mpeg_stream_vbi_fmt fmt)
173 if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
175 if (atomic_read(&itv->capturing) > 0)
178 /* First try to allocate sliced VBI buffers if needed. */
179 if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) {
182 for (i = 0; i < IVTV_VBI_FRAMES; i++) {
183 /* Yuck, hardcoded. Needs to be a define */
184 itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL);
185 if (itv->vbi.sliced_mpeg_data[i] == NULL) {
187 kfree(itv->vbi.sliced_mpeg_data[i]);
188 itv->vbi.sliced_mpeg_data[i] = NULL;
195 itv->vbi.insert_mpeg = fmt;
197 if (itv->vbi.insert_mpeg == 0) {
200 /* Need sliced data for mpeg insertion */
201 if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) {
203 itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
205 itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
206 ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz);
211 int ivtv_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
213 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
214 struct v4l2_control ctrl;
216 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
220 for (i = 0; i < c->count; i++) {
221 ctrl.id = c->controls[i].id;
222 ctrl.value = c->controls[i].value;
223 err = ivtv_g_ctrl(itv, &ctrl);
224 c->controls[i].value = ctrl.value;
232 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
233 return cx2341x_ext_ctrls(&itv->params, 0, c, VIDIOC_G_EXT_CTRLS);
237 int ivtv_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
239 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
240 struct v4l2_control ctrl;
242 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
246 for (i = 0; i < c->count; i++) {
247 ctrl.id = c->controls[i].id;
248 ctrl.value = c->controls[i].value;
249 err = ivtv_s_ctrl(itv, &ctrl);
250 c->controls[i].value = ctrl.value;
258 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
259 static u32 freqs[3] = { 44100, 48000, 32000 };
260 struct cx2341x_mpeg_params p = itv->params;
261 int err = cx2341x_ext_ctrls(&p, atomic_read(&itv->capturing), c, VIDIOC_S_EXT_CTRLS);
267 if (p.video_encoding != itv->params.video_encoding) {
268 int is_mpeg1 = p.video_encoding ==
269 V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
270 struct v4l2_mbus_framefmt fmt;
272 /* fix videodecoder resolution */
273 fmt.width = itv->params.width / (is_mpeg1 ? 2 : 1);
274 fmt.height = itv->params.height;
275 fmt.code = V4L2_MBUS_FMT_FIXED;
276 v4l2_subdev_call(itv->sd_video, video, s_mbus_fmt, &fmt);
278 err = cx2341x_update(itv, ivtv_api_func, &itv->params, &p);
279 if (!err && itv->params.stream_vbi_fmt != p.stream_vbi_fmt)
280 err = ivtv_setup_vbi_fmt(itv, p.stream_vbi_fmt);
282 itv->dualwatch_stereo_mode = p.audio_properties & 0x0300;
283 idx = p.audio_properties & 0x03;
284 /* The audio clock of the digitizer must match the codec sample
285 rate otherwise you get some very strange effects. */
286 if (idx < ARRAY_SIZE(freqs))
287 ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]);
293 int ivtv_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
295 struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
297 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
301 for (i = 0; i < c->count; i++) {
302 err = ivtv_try_ctrl(file, fh, &c->controls[i]);
310 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
311 return cx2341x_ext_ctrls(&itv->params, atomic_read(&itv->capturing), c, VIDIOC_TRY_EXT_CTRLS);