2 * cx18 ioctl control functions
4 * Derived from ivtv-controls.c
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 #include "cx18-driver.h"
25 #include "cx18-av-core.h"
26 #include "cx18-cards.h"
27 #include "cx18-ioctl.h"
28 #include "cx18-audio.h"
30 #include "cx18-mailbox.h"
31 #include "cx18-controls.h"
33 /* Must be sorted from low to high control ID! */
34 static const u32 user_ctrls[] = {
40 V4L2_CID_AUDIO_VOLUME,
41 V4L2_CID_AUDIO_BALANCE,
43 V4L2_CID_AUDIO_TREBLE,
45 V4L2_CID_AUDIO_LOUDNESS,
49 static const u32 *ctrl_classes[] = {
55 int cx18_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *qctrl)
57 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
60 qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
65 /* Standard V4L2 controls */
66 case V4L2_CID_BRIGHTNESS:
68 case V4L2_CID_SATURATION:
69 case V4L2_CID_CONTRAST:
70 if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
71 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
74 case V4L2_CID_AUDIO_VOLUME:
75 case V4L2_CID_AUDIO_MUTE:
76 case V4L2_CID_AUDIO_BALANCE:
77 case V4L2_CID_AUDIO_BASS:
78 case V4L2_CID_AUDIO_TREBLE:
79 case V4L2_CID_AUDIO_LOUDNESS:
80 if (v4l2_subdev_call(cx->sd_av, core, queryctrl, qctrl))
81 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
85 if (cx2341x_ctrl_query(&cx->params, qctrl))
86 qctrl->flags |= V4L2_CTRL_FLAG_DISABLED;
89 strncpy(qctrl->name, name, sizeof(qctrl->name) - 1);
90 qctrl->name[sizeof(qctrl->name) - 1] = 0;
94 int cx18_querymenu(struct file *file, void *fh, struct v4l2_querymenu *qmenu)
96 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
97 struct v4l2_queryctrl qctrl;
100 cx18_queryctrl(file, fh, &qctrl);
101 return v4l2_ctrl_query_menu(qmenu, &qctrl,
102 cx2341x_ctrl_get_menu(&cx->params, qmenu->id));
105 static int cx18_try_ctrl(struct file *file, void *fh,
106 struct v4l2_ext_control *vctrl)
108 struct v4l2_queryctrl qctrl;
109 const char **menu_items = NULL;
112 qctrl.id = vctrl->id;
113 err = cx18_queryctrl(file, fh, &qctrl);
116 if (qctrl.type == V4L2_CTRL_TYPE_MENU)
117 menu_items = v4l2_ctrl_get_menu(qctrl.id);
118 return v4l2_ctrl_check(vctrl, &qctrl, menu_items);
121 static int cx18_s_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
124 /* Standard V4L2 controls */
125 case V4L2_CID_BRIGHTNESS:
127 case V4L2_CID_SATURATION:
128 case V4L2_CID_CONTRAST:
129 return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
131 case V4L2_CID_AUDIO_VOLUME:
132 case V4L2_CID_AUDIO_MUTE:
133 case V4L2_CID_AUDIO_BALANCE:
134 case V4L2_CID_AUDIO_BASS:
135 case V4L2_CID_AUDIO_TREBLE:
136 case V4L2_CID_AUDIO_LOUDNESS:
137 return v4l2_subdev_call(cx->sd_av, core, s_ctrl, vctrl);
140 CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
146 static int cx18_g_ctrl(struct cx18 *cx, struct v4l2_control *vctrl)
149 /* Standard V4L2 controls */
150 case V4L2_CID_BRIGHTNESS:
152 case V4L2_CID_SATURATION:
153 case V4L2_CID_CONTRAST:
154 return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
156 case V4L2_CID_AUDIO_VOLUME:
157 case V4L2_CID_AUDIO_MUTE:
158 case V4L2_CID_AUDIO_BALANCE:
159 case V4L2_CID_AUDIO_BASS:
160 case V4L2_CID_AUDIO_TREBLE:
161 case V4L2_CID_AUDIO_LOUDNESS:
162 return v4l2_subdev_call(cx->sd_av, core, g_ctrl, vctrl);
165 CX18_DEBUG_IOCTL("invalid control 0x%x\n", vctrl->id);
171 static int cx18_setup_vbi_fmt(struct cx18 *cx, enum v4l2_mpeg_stream_vbi_fmt fmt)
173 if (!(cx->v4l2_cap & V4L2_CAP_SLICED_VBI_CAPTURE))
175 if (atomic_read(&cx->ana_capturing) > 0)
178 /* First try to allocate sliced VBI buffers if needed. */
179 if (fmt && cx->vbi.sliced_mpeg_data[0] == NULL) {
182 for (i = 0; i < CX18_VBI_FRAMES; i++) {
183 cx->vbi.sliced_mpeg_data[i] =
184 kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
185 if (cx->vbi.sliced_mpeg_data[i] == NULL) {
187 kfree(cx->vbi.sliced_mpeg_data[i]);
188 cx->vbi.sliced_mpeg_data[i] = NULL;
195 cx->vbi.insert_mpeg = fmt;
197 if (cx->vbi.insert_mpeg == 0)
199 /* Need sliced data for mpeg insertion */
200 if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
202 cx->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525;
204 cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
205 cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
210 int cx18_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
212 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
213 struct v4l2_control ctrl;
215 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
219 for (i = 0; i < c->count; i++) {
220 ctrl.id = c->controls[i].id;
221 ctrl.value = c->controls[i].value;
222 err = cx18_g_ctrl(cx, &ctrl);
223 c->controls[i].value = ctrl.value;
231 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
232 return cx2341x_ext_ctrls(&cx->params, 0, c, VIDIOC_G_EXT_CTRLS);
236 int cx18_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
238 struct cx18_open_id *id = fh;
239 struct cx18 *cx = id->cx;
241 struct v4l2_control ctrl;
243 ret = v4l2_prio_check(&cx->prio, &id->prio);
247 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
251 for (i = 0; i < c->count; i++) {
252 ctrl.id = c->controls[i].id;
253 ctrl.value = c->controls[i].value;
254 err = cx18_s_ctrl(cx, &ctrl);
255 c->controls[i].value = ctrl.value;
263 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
264 static u32 freqs[3] = { 44100, 48000, 32000 };
265 struct cx18_api_func_private priv;
266 struct cx2341x_mpeg_params p = cx->params;
267 int err = cx2341x_ext_ctrls(&p, atomic_read(&cx->ana_capturing),
268 c, VIDIOC_S_EXT_CTRLS);
274 if (p.video_encoding != cx->params.video_encoding) {
275 int is_mpeg1 = p.video_encoding ==
276 V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
277 struct v4l2_format fmt;
279 /* fix videodecoder resolution */
280 fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
281 fmt.fmt.pix.width = cx->params.width
282 / (is_mpeg1 ? 2 : 1);
283 fmt.fmt.pix.height = cx->params.height;
284 v4l2_subdev_call(cx->sd_av, video, s_fmt, &fmt);
287 priv.s = &cx->streams[id->type];
288 err = cx2341x_update(&priv, cx18_api_func, &cx->params, &p);
289 if (!err && cx->params.stream_vbi_fmt != p.stream_vbi_fmt)
290 err = cx18_setup_vbi_fmt(cx, p.stream_vbi_fmt);
292 cx->dualwatch_stereo_mode = p.audio_properties & 0x0300;
293 idx = p.audio_properties & 0x03;
294 /* The audio clock of the digitizer must match the codec sample
295 rate otherwise you get some very strange effects. */
296 if (idx < sizeof(freqs))
297 cx18_call_all(cx, audio, s_clock_freq, freqs[idx]);
303 int cx18_try_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c)
305 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
307 if (c->ctrl_class == V4L2_CTRL_CLASS_USER) {
311 for (i = 0; i < c->count; i++) {
312 err = cx18_try_ctrl(file, fh, &c->controls[i]);
320 if (c->ctrl_class == V4L2_CTRL_CLASS_MPEG)
321 return cx2341x_ext_ctrls(&cx->params,
322 atomic_read(&cx->ana_capturing),
323 c, VIDIOC_TRY_EXT_CTRLS);