Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 1 | /* |
| 2 | init/start/stop/exit stream functions |
| 3 | Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> |
| 4 | Copyright (C) 2004 Chris Kennedy <c@groovy.org> |
| 5 | Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | /* License: GPL |
| 23 | * Author: Kevin Thayer <nufan_wfk at yahoo dot com> |
| 24 | * |
| 25 | * This file will hold API related functions, both internal (firmware api) |
| 26 | * and external (v4l2, etc) |
| 27 | * |
| 28 | * ----- |
| 29 | * MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com> |
| 30 | * and Takeru KOMORIYA<komoriya@paken.org> |
| 31 | * |
| 32 | * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org> |
| 33 | * using information provided by Jiun-Kuei Jung @ AVerMedia. |
| 34 | */ |
| 35 | |
| 36 | #include "ivtv-driver.h" |
| 37 | #include "ivtv-fileops.h" |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 38 | #include "ivtv-queue.h" |
| 39 | #include "ivtv-mailbox.h" |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 40 | #include "ivtv-ioctl.h" |
Hans Verkuil | 33c0fca | 2007-08-23 06:32:46 -0300 | [diff] [blame] | 41 | #include "ivtv-irq.h" |
Hans Verkuil | 612570f | 2007-08-23 05:42:59 -0300 | [diff] [blame] | 42 | #include "ivtv-yuv.h" |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 43 | #include "ivtv-cards.h" |
Hans Verkuil | 612570f | 2007-08-23 05:42:59 -0300 | [diff] [blame] | 44 | #include "ivtv-streams.h" |
Ian Armstrong | 914610e | 2010-06-12 13:33:21 -0300 | [diff] [blame] | 45 | #include "ivtv-firmware.h" |
Hans Verkuil | 0925019 | 2010-03-27 14:10:13 -0300 | [diff] [blame] | 46 | #include <media/v4l2-event.h> |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 47 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 48 | static const struct v4l2_file_operations ivtv_v4l2_enc_fops = { |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 49 | .owner = THIS_MODULE, |
| 50 | .read = ivtv_v4l2_read, |
| 51 | .write = ivtv_v4l2_write, |
| 52 | .open = ivtv_v4l2_open, |
Hans Verkuil | 09882f0 | 2008-10-18 13:42:24 -0300 | [diff] [blame] | 53 | .unlocked_ioctl = ivtv_v4l2_ioctl, |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 54 | .release = ivtv_v4l2_close, |
| 55 | .poll = ivtv_v4l2_enc_poll, |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 56 | }; |
| 57 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 58 | static const struct v4l2_file_operations ivtv_v4l2_dec_fops = { |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 59 | .owner = THIS_MODULE, |
| 60 | .read = ivtv_v4l2_read, |
| 61 | .write = ivtv_v4l2_write, |
| 62 | .open = ivtv_v4l2_open, |
Hans Verkuil | 09882f0 | 2008-10-18 13:42:24 -0300 | [diff] [blame] | 63 | .unlocked_ioctl = ivtv_v4l2_ioctl, |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 64 | .release = ivtv_v4l2_close, |
| 65 | .poll = ivtv_v4l2_dec_poll, |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 66 | }; |
| 67 | |
Hans Verkuil | 33c0fca | 2007-08-23 06:32:46 -0300 | [diff] [blame] | 68 | #define IVTV_V4L2_DEC_MPG_OFFSET 16 /* offset from 0 to register decoder mpg v4l2 minors on */ |
| 69 | #define IVTV_V4L2_ENC_PCM_OFFSET 24 /* offset from 0 to register pcm v4l2 minors on */ |
| 70 | #define IVTV_V4L2_ENC_YUV_OFFSET 32 /* offset from 0 to register yuv v4l2 minors on */ |
| 71 | #define IVTV_V4L2_DEC_YUV_OFFSET 48 /* offset from 0 to register decoder yuv v4l2 minors on */ |
| 72 | #define IVTV_V4L2_DEC_VBI_OFFSET 8 /* offset from 0 to register decoder vbi input v4l2 minors on */ |
| 73 | #define IVTV_V4L2_DEC_VOUT_OFFSET 16 /* offset from 0 to register vbi output v4l2 minors on */ |
| 74 | |
Hans Verkuil | 31ec135 | 2007-03-03 08:50:42 -0300 | [diff] [blame] | 75 | static struct { |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 76 | const char *name; |
| 77 | int vfl_type; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 78 | int num_offset; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 79 | int dma, pio; |
| 80 | enum v4l2_buf_type buf_type; |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 81 | const struct v4l2_file_operations *fops; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 82 | } ivtv_stream_info[] = { |
| 83 | { /* IVTV_ENC_STREAM_TYPE_MPG */ |
Hans Verkuil | 7c03a44 | 2007-08-19 18:59:42 -0300 | [diff] [blame] | 84 | "encoder MPG", |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 85 | VFL_TYPE_GRABBER, 0, |
| 86 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 87 | &ivtv_v4l2_enc_fops |
| 88 | }, |
| 89 | { /* IVTV_ENC_STREAM_TYPE_YUV */ |
| 90 | "encoder YUV", |
| 91 | VFL_TYPE_GRABBER, IVTV_V4L2_ENC_YUV_OFFSET, |
| 92 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 93 | &ivtv_v4l2_enc_fops |
| 94 | }, |
| 95 | { /* IVTV_ENC_STREAM_TYPE_VBI */ |
| 96 | "encoder VBI", |
| 97 | VFL_TYPE_VBI, 0, |
| 98 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_VBI_CAPTURE, |
| 99 | &ivtv_v4l2_enc_fops |
| 100 | }, |
| 101 | { /* IVTV_ENC_STREAM_TYPE_PCM */ |
Hans Verkuil | 7c03a44 | 2007-08-19 18:59:42 -0300 | [diff] [blame] | 102 | "encoder PCM", |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 103 | VFL_TYPE_GRABBER, IVTV_V4L2_ENC_PCM_OFFSET, |
| 104 | PCI_DMA_FROMDEVICE, 0, V4L2_BUF_TYPE_PRIVATE, |
| 105 | &ivtv_v4l2_enc_fops |
| 106 | }, |
| 107 | { /* IVTV_ENC_STREAM_TYPE_RAD */ |
| 108 | "encoder radio", |
| 109 | VFL_TYPE_RADIO, 0, |
| 110 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_PRIVATE, |
| 111 | &ivtv_v4l2_enc_fops |
| 112 | }, |
| 113 | { /* IVTV_DEC_STREAM_TYPE_MPG */ |
Hans Verkuil | 7c03a44 | 2007-08-19 18:59:42 -0300 | [diff] [blame] | 114 | "decoder MPG", |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 115 | VFL_TYPE_GRABBER, IVTV_V4L2_DEC_MPG_OFFSET, |
| 116 | PCI_DMA_TODEVICE, 0, V4L2_BUF_TYPE_VIDEO_OUTPUT, |
| 117 | &ivtv_v4l2_dec_fops |
| 118 | }, |
| 119 | { /* IVTV_DEC_STREAM_TYPE_VBI */ |
| 120 | "decoder VBI", |
| 121 | VFL_TYPE_VBI, IVTV_V4L2_DEC_VBI_OFFSET, |
| 122 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_VBI_CAPTURE, |
| 123 | &ivtv_v4l2_enc_fops |
| 124 | }, |
| 125 | { /* IVTV_DEC_STREAM_TYPE_VOUT */ |
| 126 | "decoder VOUT", |
| 127 | VFL_TYPE_VBI, IVTV_V4L2_DEC_VOUT_OFFSET, |
| 128 | PCI_DMA_NONE, 1, V4L2_BUF_TYPE_VBI_OUTPUT, |
| 129 | &ivtv_v4l2_dec_fops |
| 130 | }, |
| 131 | { /* IVTV_DEC_STREAM_TYPE_YUV */ |
| 132 | "decoder YUV", |
| 133 | VFL_TYPE_GRABBER, IVTV_V4L2_DEC_YUV_OFFSET, |
| 134 | PCI_DMA_TODEVICE, 0, V4L2_BUF_TYPE_VIDEO_OUTPUT, |
| 135 | &ivtv_v4l2_dec_fops |
| 136 | } |
| 137 | }; |
| 138 | |
| 139 | static void ivtv_stream_init(struct ivtv *itv, int type) |
| 140 | { |
| 141 | struct ivtv_stream *s = &itv->streams[type]; |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 142 | struct video_device *vdev = s->vdev; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 143 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 144 | /* we need to keep vdev, so restore it afterwards */ |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 145 | memset(s, 0, sizeof(*s)); |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 146 | s->vdev = vdev; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 147 | |
| 148 | /* initialize ivtv_stream fields */ |
| 149 | s->itv = itv; |
| 150 | s->type = type; |
| 151 | s->name = ivtv_stream_info[type].name; |
| 152 | |
| 153 | if (ivtv_stream_info[type].pio) |
| 154 | s->dma = PCI_DMA_NONE; |
| 155 | else |
| 156 | s->dma = ivtv_stream_info[type].dma; |
| 157 | s->buf_size = itv->stream_buf_size[type]; |
| 158 | if (s->buf_size) |
Hans Verkuil | 313e91e | 2007-08-19 05:32:33 -0300 | [diff] [blame] | 159 | s->buffers = (itv->options.kilobytes[type] * 1024 + s->buf_size - 1) / s->buf_size; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 160 | spin_lock_init(&s->qlock); |
| 161 | init_waitqueue_head(&s->waitq); |
| 162 | s->id = -1; |
Hans Verkuil | 37093b1 | 2007-07-28 19:45:50 -0300 | [diff] [blame] | 163 | s->sg_handle = IVTV_DMA_UNMAPPED; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 164 | ivtv_queue_init(&s->q_free); |
| 165 | ivtv_queue_init(&s->q_full); |
| 166 | ivtv_queue_init(&s->q_dma); |
| 167 | ivtv_queue_init(&s->q_predma); |
| 168 | ivtv_queue_init(&s->q_io); |
| 169 | } |
| 170 | |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 171 | static int ivtv_prep_dev(struct ivtv *itv, int type) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 172 | { |
| 173 | struct ivtv_stream *s = &itv->streams[type]; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 174 | int num_offset = ivtv_stream_info[type].num_offset; |
Hans Verkuil | 67ec09f | 2008-11-29 19:38:23 -0300 | [diff] [blame] | 175 | int num = itv->instance + ivtv_first_minor + num_offset; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 176 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 177 | /* These four fields are always initialized. If vdev == NULL, then |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 178 | this stream is not in use. In that case no other fields but these |
| 179 | four can be used. */ |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 180 | s->vdev = NULL; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 181 | s->itv = itv; |
| 182 | s->type = type; |
| 183 | s->name = ivtv_stream_info[type].name; |
| 184 | |
| 185 | /* Check whether the radio is supported */ |
| 186 | if (type == IVTV_ENC_STREAM_TYPE_RAD && !(itv->v4l2_cap & V4L2_CAP_RADIO)) |
| 187 | return 0; |
| 188 | if (type >= IVTV_DEC_STREAM_TYPE_MPG && !(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) |
| 189 | return 0; |
| 190 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 191 | /* User explicitly selected 0 buffers for these streams, so don't |
| 192 | create them. */ |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 193 | if (ivtv_stream_info[type].dma != PCI_DMA_NONE && |
Hans Verkuil | 313e91e | 2007-08-19 05:32:33 -0300 | [diff] [blame] | 194 | itv->options.kilobytes[type] == 0) { |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 195 | IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name); |
| 196 | return 0; |
| 197 | } |
| 198 | |
| 199 | ivtv_stream_init(itv, type); |
| 200 | |
| 201 | /* allocate and initialize the v4l2 video device structure */ |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 202 | s->vdev = video_device_alloc(); |
| 203 | if (s->vdev == NULL) { |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 204 | IVTV_ERR("Couldn't allocate v4l2 video_device for %s\n", s->name); |
| 205 | return -ENOMEM; |
| 206 | } |
| 207 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 208 | snprintf(s->vdev->name, sizeof(s->vdev->name), "%s %s", |
| 209 | itv->v4l2_dev.name, s->name); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 210 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 211 | s->vdev->num = num; |
| 212 | s->vdev->v4l2_dev = &itv->v4l2_dev; |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 213 | s->vdev->ctrl_handler = itv->v4l2_dev.ctrl_handler; |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 214 | s->vdev->fops = ivtv_stream_info[type].fops; |
| 215 | s->vdev->release = video_device_release; |
| 216 | s->vdev->tvnorms = V4L2_STD_ALL; |
Hans Verkuil | b1a873a | 2011-03-22 10:14:07 -0300 | [diff] [blame] | 217 | set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev->flags); |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 218 | ivtv_set_funcs(s->vdev); |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 219 | return 0; |
| 220 | } |
| 221 | |
| 222 | /* Initialize v4l2 variables and prepare v4l2 devices */ |
| 223 | int ivtv_streams_setup(struct ivtv *itv) |
| 224 | { |
| 225 | int type; |
| 226 | |
| 227 | /* Setup V4L2 Devices */ |
| 228 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { |
| 229 | /* Prepare device */ |
| 230 | if (ivtv_prep_dev(itv, type)) |
| 231 | break; |
| 232 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 233 | if (itv->streams[type].vdev == NULL) |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 234 | continue; |
| 235 | |
| 236 | /* Allocate Stream */ |
| 237 | if (ivtv_stream_alloc(&itv->streams[type])) |
| 238 | break; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 239 | } |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 240 | if (type == IVTV_MAX_STREAMS) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 241 | return 0; |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 242 | |
| 243 | /* One or more streams could not be initialized. Clean 'em all up. */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 244 | ivtv_streams_cleanup(itv, 0); |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 245 | return -ENOMEM; |
| 246 | } |
| 247 | |
| 248 | static int ivtv_reg_dev(struct ivtv *itv, int type) |
| 249 | { |
| 250 | struct ivtv_stream *s = &itv->streams[type]; |
| 251 | int vfl_type = ivtv_stream_info[type].vfl_type; |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 252 | const char *name; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 253 | int num; |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 254 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 255 | if (s->vdev == NULL) |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 256 | return 0; |
| 257 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 258 | num = s->vdev->num; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 259 | /* card number + user defined offset + device offset */ |
| 260 | if (type != IVTV_ENC_STREAM_TYPE_MPG) { |
| 261 | struct ivtv_stream *s_mpg = &itv->streams[IVTV_ENC_STREAM_TYPE_MPG]; |
| 262 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 263 | if (s_mpg->vdev) |
| 264 | num = s_mpg->vdev->num + ivtv_stream_info[type].num_offset; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 265 | } |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 266 | video_set_drvdata(s->vdev, s); |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 267 | |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 268 | /* Register device. First try the desired minor, then any free one. */ |
Hans Verkuil | 6b5270d | 2009-09-06 07:54:00 -0300 | [diff] [blame] | 269 | if (video_register_device_no_warn(s->vdev, vfl_type, num)) { |
Hans Verkuil | 581644d | 2009-06-19 11:54:00 -0300 | [diff] [blame] | 270 | IVTV_ERR("Couldn't register v4l2 device for %s (device node number %d)\n", |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 271 | s->name, num); |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 272 | video_device_release(s->vdev); |
| 273 | s->vdev = NULL; |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 274 | return -ENOMEM; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 275 | } |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 276 | name = video_device_node_name(s->vdev); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 277 | |
| 278 | switch (vfl_type) { |
| 279 | case VFL_TYPE_GRABBER: |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 280 | IVTV_INFO("Registered device %s for %s (%d kB)\n", |
| 281 | name, s->name, itv->options.kilobytes[type]); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 282 | break; |
| 283 | case VFL_TYPE_RADIO: |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 284 | IVTV_INFO("Registered device %s for %s\n", |
| 285 | name, s->name); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 286 | break; |
| 287 | case VFL_TYPE_VBI: |
Hans Verkuil | 313e91e | 2007-08-19 05:32:33 -0300 | [diff] [blame] | 288 | if (itv->options.kilobytes[type]) |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 289 | IVTV_INFO("Registered device %s for %s (%d kB)\n", |
| 290 | name, s->name, itv->options.kilobytes[type]); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 291 | else |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 292 | IVTV_INFO("Registered device %s for %s\n", |
| 293 | name, s->name); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 294 | break; |
| 295 | } |
| 296 | return 0; |
| 297 | } |
| 298 | |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 299 | /* Register v4l2 devices */ |
| 300 | int ivtv_streams_register(struct ivtv *itv) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 301 | { |
| 302 | int type; |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 303 | int err = 0; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 304 | |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 305 | /* Register V4L2 devices */ |
| 306 | for (type = 0; type < IVTV_MAX_STREAMS; type++) |
| 307 | err |= ivtv_reg_dev(itv, type); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 308 | |
Hans Verkuil | 18e16f9 | 2007-10-13 05:54:48 -0300 | [diff] [blame] | 309 | if (err == 0) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 310 | return 0; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 311 | |
| 312 | /* One or more streams could not be initialized. Clean 'em all up. */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 313 | ivtv_streams_cleanup(itv, 1); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 314 | return -ENOMEM; |
| 315 | } |
| 316 | |
| 317 | /* Unregister v4l2 devices */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 318 | void ivtv_streams_cleanup(struct ivtv *itv, int unregister) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 319 | { |
| 320 | int type; |
| 321 | |
| 322 | /* Teardown all streams */ |
| 323 | for (type = 0; type < IVTV_MAX_STREAMS; type++) { |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 324 | struct video_device *vdev = itv->streams[type].vdev; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 325 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 326 | itv->streams[type].vdev = NULL; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 327 | if (vdev == NULL) |
| 328 | continue; |
| 329 | |
| 330 | ivtv_stream_free(&itv->streams[type]); |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 331 | /* Unregister or release device */ |
| 332 | if (unregister) |
| 333 | video_unregister_device(vdev); |
| 334 | else |
| 335 | video_device_release(vdev); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 336 | } |
| 337 | } |
| 338 | |
| 339 | static void ivtv_vbi_setup(struct ivtv *itv) |
| 340 | { |
Hans Verkuil | a8b8643 | 2008-10-04 08:05:30 -0300 | [diff] [blame] | 341 | int raw = ivtv_raw_vbi(itv); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 342 | u32 data[CX2341X_MBOX_MAX_DATA]; |
| 343 | int lines; |
| 344 | int i; |
| 345 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 346 | /* Reset VBI */ |
| 347 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, 0xffff , 0, 0, 0, 0); |
| 348 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 349 | /* setup VBI registers */ |
Hans Verkuil | 4ff0790 | 2010-03-14 12:18:18 -0300 | [diff] [blame] | 350 | if (raw) |
| 351 | v4l2_subdev_call(itv->sd_video, vbi, s_raw_fmt, &itv->vbi.in.fmt.vbi); |
| 352 | else |
| 353 | v4l2_subdev_call(itv->sd_video, vbi, s_sliced_fmt, &itv->vbi.in.fmt.sliced); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 354 | |
| 355 | /* determine number of lines and total number of VBI bytes. |
| 356 | A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 |
| 357 | The '- 1' byte is probably an unused U or V byte. Or something... |
| 358 | A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal |
| 359 | header, 42 data bytes + checksum (to be confirmed) */ |
| 360 | if (raw) { |
| 361 | lines = itv->vbi.count * 2; |
| 362 | } else { |
| 363 | lines = itv->is_60hz ? 24 : 38; |
| 364 | if (itv->is_60hz && (itv->hw_flags & IVTV_HW_CX25840)) |
| 365 | lines += 2; |
| 366 | } |
| 367 | |
| 368 | itv->vbi.enc_size = lines * (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); |
| 369 | |
| 370 | /* Note: sliced vs raw flag doesn't seem to have any effect |
| 371 | TODO: check mode (0x02) value with older ivtv versions. */ |
| 372 | data[0] = raw | 0x02 | (0xbd << 8); |
| 373 | |
| 374 | /* Every X number of frames a VBI interrupt arrives (frames as in 25 or 30 fps) */ |
| 375 | data[1] = 1; |
| 376 | /* The VBI frames are stored in a ringbuffer with this size (with a VBI frame as unit) */ |
Hans Verkuil | d526afe | 2008-09-03 16:47:14 -0300 | [diff] [blame] | 377 | data[2] = raw ? 4 : 4 * (itv->vbi.raw_size / itv->vbi.enc_size); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 378 | /* The start/stop codes determine which VBI lines end up in the raw VBI data area. |
| 379 | The codes are from table 24 in the saa7115 datasheet. Each raw/sliced/video line |
| 380 | is framed with codes FF0000XX where XX is the SAV/EAV (Start/End of Active Video) |
| 381 | code. These values for raw VBI are obtained from a driver disassembly. The sliced |
| 382 | start/stop codes was deduced from this, but they do not appear in the driver. |
| 383 | Other code pairs that I found are: 0x250E6249/0x13545454 and 0x25256262/0x38137F54. |
| 384 | However, I have no idea what these values are for. */ |
| 385 | if (itv->hw_flags & IVTV_HW_CX25840) { |
| 386 | /* Setup VBI for the cx25840 digitizer */ |
| 387 | if (raw) { |
| 388 | data[3] = 0x20602060; |
| 389 | data[4] = 0x30703070; |
| 390 | } else { |
| 391 | data[3] = 0xB0F0B0F0; |
| 392 | data[4] = 0xA0E0A0E0; |
| 393 | } |
| 394 | /* Lines per frame */ |
| 395 | data[5] = lines; |
| 396 | /* bytes per line */ |
| 397 | data[6] = (raw ? itv->vbi.raw_size : itv->vbi.sliced_size); |
| 398 | } else { |
| 399 | /* Setup VBI for the saa7115 digitizer */ |
| 400 | if (raw) { |
| 401 | data[3] = 0x25256262; |
| 402 | data[4] = 0x387F7F7F; |
| 403 | } else { |
| 404 | data[3] = 0xABABECEC; |
| 405 | data[4] = 0xB6F1F1F1; |
| 406 | } |
| 407 | /* Lines per frame */ |
| 408 | data[5] = lines; |
| 409 | /* bytes per line */ |
| 410 | data[6] = itv->vbi.enc_size / lines; |
| 411 | } |
| 412 | |
| 413 | IVTV_DEBUG_INFO( |
| 414 | "Setup VBI API header 0x%08x pkts %d buffs %d ln %d sz %d\n", |
| 415 | data[0], data[1], data[2], data[5], data[6]); |
| 416 | |
| 417 | ivtv_api(itv, CX2341X_ENC_SET_VBI_CONFIG, 7, data); |
| 418 | |
| 419 | /* returns the VBI encoder memory area. */ |
| 420 | itv->vbi.enc_start = data[2]; |
| 421 | itv->vbi.fpi = data[0]; |
| 422 | if (!itv->vbi.fpi) |
| 423 | itv->vbi.fpi = 1; |
| 424 | |
Hans Verkuil | fd8b281 | 2007-08-23 10:13:15 -0300 | [diff] [blame] | 425 | IVTV_DEBUG_INFO("Setup VBI start 0x%08x frames %d fpi %d\n", |
| 426 | itv->vbi.enc_start, data[1], itv->vbi.fpi); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 427 | |
| 428 | /* select VBI lines. |
| 429 | Note that the sliced argument seems to have no effect. */ |
| 430 | for (i = 2; i <= 24; i++) { |
| 431 | int valid; |
| 432 | |
| 433 | if (itv->is_60hz) { |
| 434 | valid = i >= 10 && i < 22; |
| 435 | } else { |
| 436 | valid = i >= 6 && i < 24; |
| 437 | } |
| 438 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, i - 1, |
| 439 | valid, 0 , 0, 0); |
| 440 | ivtv_vapi(itv, CX2341X_ENC_SET_VBI_LINE, 5, (i - 1) | 0x80000000, |
| 441 | valid, 0, 0, 0); |
| 442 | } |
| 443 | |
| 444 | /* Remaining VBI questions: |
| 445 | - Is it possible to select particular VBI lines only for inclusion in the MPEG |
| 446 | stream? Currently you can only get the first X lines. |
| 447 | - Is mixed raw and sliced VBI possible? |
| 448 | - What's the meaning of the raw/sliced flag? |
| 449 | - What's the meaning of params 2, 3 & 4 of the Select VBI command? */ |
| 450 | } |
| 451 | |
| 452 | int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s) |
| 453 | { |
| 454 | u32 data[CX2341X_MBOX_MAX_DATA]; |
| 455 | struct ivtv *itv = s->itv; |
| 456 | int captype = 0, subtype = 0; |
| 457 | int enable_passthrough = 0; |
| 458 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 459 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 460 | return -EINVAL; |
| 461 | |
| 462 | IVTV_DEBUG_INFO("Start encoder stream %s\n", s->name); |
| 463 | |
| 464 | switch (s->type) { |
| 465 | case IVTV_ENC_STREAM_TYPE_MPG: |
| 466 | captype = 0; |
| 467 | subtype = 3; |
| 468 | |
| 469 | /* Stop Passthrough */ |
| 470 | if (itv->output_mode == OUT_PASSTHROUGH) { |
| 471 | ivtv_passthrough_mode(itv, 0); |
| 472 | enable_passthrough = 1; |
| 473 | } |
| 474 | itv->mpg_data_received = itv->vbi_data_inserted = 0; |
| 475 | itv->dualwatch_jiffies = jiffies; |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 476 | itv->dualwatch_stereo_mode = v4l2_ctrl_g_ctrl(itv->cxhdl.audio_mode); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 477 | itv->search_pack_header = 0; |
| 478 | break; |
| 479 | |
| 480 | case IVTV_ENC_STREAM_TYPE_YUV: |
| 481 | if (itv->output_mode == OUT_PASSTHROUGH) { |
| 482 | captype = 2; |
| 483 | subtype = 11; /* video+audio+decoder */ |
| 484 | break; |
| 485 | } |
| 486 | captype = 1; |
| 487 | subtype = 1; |
| 488 | break; |
| 489 | case IVTV_ENC_STREAM_TYPE_PCM: |
| 490 | captype = 1; |
| 491 | subtype = 2; |
| 492 | break; |
| 493 | case IVTV_ENC_STREAM_TYPE_VBI: |
| 494 | captype = 1; |
| 495 | subtype = 4; |
| 496 | |
| 497 | itv->vbi.frame = 0; |
| 498 | itv->vbi.inserted_frame = 0; |
| 499 | memset(itv->vbi.sliced_mpeg_size, |
| 500 | 0, sizeof(itv->vbi.sliced_mpeg_size)); |
| 501 | break; |
| 502 | default: |
| 503 | return -EINVAL; |
| 504 | } |
| 505 | s->subtype = subtype; |
| 506 | s->buffers_stolen = 0; |
| 507 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 508 | /* Clear Streamoff flags in case left from last capture */ |
| 509 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
| 510 | |
| 511 | if (atomic_read(&itv->capturing) == 0) { |
Hans Verkuil | fd8b281 | 2007-08-23 10:13:15 -0300 | [diff] [blame] | 512 | int digitizer; |
| 513 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 514 | /* Always use frame based mode. Experiments have demonstrated that byte |
| 515 | stream based mode results in dropped frames and corruption. Not often, |
| 516 | but occasionally. Many thanks go to Leonard Orb who spent a lot of |
| 517 | effort and time trying to trace the cause of the drop outs. */ |
| 518 | /* 1 frame per DMA */ |
| 519 | /*ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 128, 0); */ |
| 520 | ivtv_vapi(itv, CX2341X_ENC_SET_DMA_BLOCK_SIZE, 2, 1, 1); |
| 521 | |
| 522 | /* Stuff from Windows, we don't know what it is */ |
| 523 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, 0); |
| 524 | /* According to the docs, this should be correct. However, this is |
| 525 | untested. I don't dare enable this without having tested it. |
| 526 | Only very few old cards actually have this hardware combination. |
| 527 | ivtv_vapi(itv, CX2341X_ENC_SET_VERT_CROP_LINE, 1, |
| 528 | ((itv->hw_flags & IVTV_HW_SAA7114) && itv->is_60hz) ? 10001 : 0); |
| 529 | */ |
| 530 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 3, !itv->has_cx23415); |
| 531 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 8, 0); |
| 532 | ivtv_vapi(itv, CX2341X_ENC_MISC, 2, 4, 1); |
| 533 | ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12); |
| 534 | |
| 535 | /* assign placeholder */ |
| 536 | ivtv_vapi(itv, CX2341X_ENC_SET_PLACEHOLDER, 12, |
| 537 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); |
| 538 | |
Hans Verkuil | fd8b281 | 2007-08-23 10:13:15 -0300 | [diff] [blame] | 539 | if (itv->card->hw_all & (IVTV_HW_SAA7115 | IVTV_HW_SAA717X)) |
| 540 | digitizer = 0xF1; |
| 541 | else if (itv->card->hw_all & IVTV_HW_SAA7114) |
| 542 | digitizer = 0xEF; |
| 543 | else /* cx25840 */ |
| 544 | digitizer = 0x140; |
| 545 | |
| 546 | ivtv_vapi(itv, CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, digitizer, digitizer); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 547 | |
| 548 | /* Setup VBI */ |
| 549 | if (itv->v4l2_cap & V4L2_CAP_VBI_CAPTURE) { |
| 550 | ivtv_vbi_setup(itv); |
| 551 | } |
| 552 | |
| 553 | /* assign program index info. Mask 7: select I/P/B, Num_req: 400 max */ |
| 554 | ivtv_vapi_result(itv, data, CX2341X_ENC_SET_PGM_INDEX_INFO, 2, 7, 400); |
| 555 | itv->pgm_info_offset = data[0]; |
| 556 | itv->pgm_info_num = data[1]; |
| 557 | itv->pgm_info_write_idx = 0; |
| 558 | itv->pgm_info_read_idx = 0; |
| 559 | |
| 560 | IVTV_DEBUG_INFO("PGM Index at 0x%08x with %d elements\n", |
| 561 | itv->pgm_info_offset, itv->pgm_info_num); |
| 562 | |
| 563 | /* Setup API for Stream */ |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 564 | cx2341x_handler_setup(&itv->cxhdl); |
Hans Verkuil | 254d6eb | 2007-10-14 17:19:37 -0300 | [diff] [blame] | 565 | |
| 566 | /* mute if capturing radio */ |
| 567 | if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) |
| 568 | ivtv_vapi(itv, CX2341X_ENC_MUTE_VIDEO, 1, |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 569 | 1 | (v4l2_ctrl_g_ctrl(itv->cxhdl.video_mute_yuv) << 8)); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 570 | } |
| 571 | |
| 572 | /* Vsync Setup */ |
| 573 | if (itv->has_cx23415 && !test_and_set_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { |
| 574 | /* event notification (on) */ |
| 575 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_ENC_VIM_RST, -1); |
| 576 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); |
| 577 | } |
| 578 | |
| 579 | if (atomic_read(&itv->capturing) == 0) { |
| 580 | /* Clear all Pending Interrupts */ |
| 581 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); |
| 582 | |
| 583 | clear_bit(IVTV_F_I_EOS, &itv->i_flags); |
| 584 | |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 585 | cx2341x_handler_set_busy(&itv->cxhdl, 1); |
| 586 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 587 | /* Initialize Digitizer for Capture */ |
Andy Walls | 3ccc646 | 2009-12-24 13:06:08 -0300 | [diff] [blame] | 588 | /* Avoid tinny audio problem - ensure audio clocks are going */ |
| 589 | v4l2_subdev_call(itv->sd_audio, audio, s_stream, 1); |
| 590 | /* Avoid unpredictable PCI bus hang - disable video clocks */ |
Hans Verkuil | 67ec09f | 2008-11-29 19:38:23 -0300 | [diff] [blame] | 591 | v4l2_subdev_call(itv->sd_video, video, s_stream, 0); |
Andy Walls | 283328c | 2010-03-06 21:08:35 -0300 | [diff] [blame] | 592 | ivtv_msleep_timeout(300, 1); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 593 | ivtv_vapi(itv, CX2341X_ENC_INITIALIZE_INPUT, 0); |
Hans Verkuil | 67ec09f | 2008-11-29 19:38:23 -0300 | [diff] [blame] | 594 | v4l2_subdev_call(itv->sd_video, video, s_stream, 1); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 595 | } |
| 596 | |
| 597 | /* begin_capture */ |
| 598 | if (ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, captype, subtype)) |
| 599 | { |
| 600 | IVTV_DEBUG_WARN( "Error starting capture!\n"); |
| 601 | return -EINVAL; |
| 602 | } |
| 603 | |
| 604 | /* Start Passthrough */ |
| 605 | if (enable_passthrough) { |
| 606 | ivtv_passthrough_mode(itv, 1); |
| 607 | } |
| 608 | |
| 609 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) |
| 610 | ivtv_clear_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); |
| 611 | else |
| 612 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); |
| 613 | |
| 614 | /* you're live! sit back and await interrupts :) */ |
| 615 | atomic_inc(&itv->capturing); |
| 616 | return 0; |
| 617 | } |
| 618 | |
| 619 | static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s) |
| 620 | { |
| 621 | u32 data[CX2341X_MBOX_MAX_DATA]; |
| 622 | struct ivtv *itv = s->itv; |
| 623 | int datatype; |
Ian Armstrong | bd62307b | 2010-05-23 22:19:11 -0300 | [diff] [blame] | 624 | u16 width; |
| 625 | u16 height; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 626 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 627 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 628 | return -EINVAL; |
| 629 | |
| 630 | IVTV_DEBUG_INFO("Setting some initial decoder settings\n"); |
| 631 | |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 632 | width = itv->cxhdl.width; |
| 633 | height = itv->cxhdl.height; |
Ian Armstrong | bd62307b | 2010-05-23 22:19:11 -0300 | [diff] [blame] | 634 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 635 | /* set audio mode to left/stereo for dual/stereo mode. */ |
| 636 | ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); |
| 637 | |
| 638 | /* set number of internal decoder buffers */ |
| 639 | ivtv_vapi(itv, CX2341X_DEC_SET_DISPLAY_BUFFERS, 1, 0); |
| 640 | |
| 641 | /* prebuffering */ |
| 642 | ivtv_vapi(itv, CX2341X_DEC_SET_PREBUFFERING, 1, 1); |
| 643 | |
| 644 | /* extract from user packets */ |
| 645 | ivtv_vapi_result(itv, data, CX2341X_DEC_EXTRACT_VBI, 1, 1); |
| 646 | itv->vbi.dec_start = data[0]; |
| 647 | |
| 648 | IVTV_DEBUG_INFO("Decoder VBI RE-Insert start 0x%08x size 0x%08x\n", |
| 649 | itv->vbi.dec_start, data[1]); |
| 650 | |
| 651 | /* set decoder source settings */ |
| 652 | /* Data type: 0 = mpeg from host, |
| 653 | 1 = yuv from encoder, |
| 654 | 2 = yuv_from_host */ |
| 655 | switch (s->type) { |
| 656 | case IVTV_DEC_STREAM_TYPE_YUV: |
Ian Armstrong | bd62307b | 2010-05-23 22:19:11 -0300 | [diff] [blame] | 657 | if (itv->output_mode == OUT_PASSTHROUGH) { |
| 658 | datatype = 1; |
| 659 | } else { |
| 660 | /* Fake size to avoid switching video standard */ |
| 661 | datatype = 2; |
| 662 | width = 720; |
| 663 | height = itv->is_out_50hz ? 576 : 480; |
| 664 | } |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 665 | IVTV_DEBUG_INFO("Setup DEC YUV Stream data[0] = %d\n", datatype); |
| 666 | break; |
| 667 | case IVTV_DEC_STREAM_TYPE_MPG: |
| 668 | default: |
| 669 | datatype = 0; |
| 670 | break; |
| 671 | } |
| 672 | if (ivtv_vapi(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, datatype, |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 673 | width, height, itv->cxhdl.audio_properties)) { |
Hans Verkuil | 5a338c3 | 2007-07-22 09:39:56 -0300 | [diff] [blame] | 674 | IVTV_DEBUG_WARN("Couldn't initialize decoder source\n"); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 675 | } |
Ian Armstrong | 666092c | 2010-05-23 22:27:49 -0300 | [diff] [blame] | 676 | |
| 677 | /* Decoder sometimes dies here, so wait a moment */ |
| 678 | ivtv_msleep_timeout(10, 0); |
| 679 | |
Ian Armstrong | 914610e | 2010-06-12 13:33:21 -0300 | [diff] [blame] | 680 | /* Known failure point for firmware, so check */ |
Ian Armstrong | 215659d | 2010-06-12 13:41:57 -0300 | [diff] [blame] | 681 | return ivtv_firmware_check(itv, "ivtv_setup_v4l2_decode_stream"); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 682 | } |
| 683 | |
| 684 | int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset) |
| 685 | { |
| 686 | struct ivtv *itv = s->itv; |
Ian Armstrong | 914610e | 2010-06-12 13:33:21 -0300 | [diff] [blame] | 687 | int rc; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 688 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 689 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 690 | return -EINVAL; |
| 691 | |
| 692 | if (test_and_set_bit(IVTV_F_S_STREAMING, &s->s_flags)) |
| 693 | return 0; /* already started */ |
| 694 | |
| 695 | IVTV_DEBUG_INFO("Starting decode stream %s (gop_offset %d)\n", s->name, gop_offset); |
| 696 | |
Ian Armstrong | 914610e | 2010-06-12 13:33:21 -0300 | [diff] [blame] | 697 | rc = ivtv_setup_v4l2_decode_stream(s); |
| 698 | if (rc < 0) { |
| 699 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); |
| 700 | return rc; |
| 701 | } |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 702 | |
| 703 | /* set dma size to 65536 bytes */ |
| 704 | ivtv_vapi(itv, CX2341X_DEC_SET_DMA_BLOCK_SIZE, 1, 65536); |
| 705 | |
Ian Armstrong | 77aded6 | 2007-11-05 14:27:09 -0300 | [diff] [blame] | 706 | /* Clear Streamoff */ |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 707 | clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
| 708 | |
| 709 | /* Zero out decoder counters */ |
Hans Verkuil | 33c0fca | 2007-08-23 06:32:46 -0300 | [diff] [blame] | 710 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[0]); |
| 711 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[1]); |
| 712 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[2]); |
| 713 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA_END].data[3]); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 714 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[0]); |
| 715 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[1]); |
| 716 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[2]); |
| 717 | writel(0, &itv->dec_mbox.mbox[IVTV_MBOX_DMA].data[3]); |
| 718 | |
| 719 | /* turn on notification of dual/stereo mode change */ |
| 720 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 1, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); |
| 721 | |
| 722 | /* start playback */ |
| 723 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, gop_offset, 0); |
| 724 | |
Ian Armstrong | 666092c | 2010-05-23 22:27:49 -0300 | [diff] [blame] | 725 | /* Let things settle before we actually start */ |
| 726 | ivtv_msleep_timeout(10, 0); |
| 727 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 728 | /* Clear the following Interrupt mask bits for decoding */ |
| 729 | ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_DECODE); |
| 730 | IVTV_DEBUG_IRQ("IRQ Mask is now: 0x%08x\n", itv->irqmask); |
| 731 | |
| 732 | /* you're live! sit back and await interrupts :) */ |
| 733 | atomic_inc(&itv->decoding); |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | void ivtv_stop_all_captures(struct ivtv *itv) |
| 738 | { |
| 739 | int i; |
| 740 | |
| 741 | for (i = IVTV_MAX_STREAMS - 1; i >= 0; i--) { |
| 742 | struct ivtv_stream *s = &itv->streams[i]; |
| 743 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 744 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 745 | continue; |
| 746 | if (test_bit(IVTV_F_S_STREAMING, &s->s_flags)) { |
| 747 | ivtv_stop_v4l2_encode_stream(s, 0); |
| 748 | } |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) |
| 753 | { |
| 754 | struct ivtv *itv = s->itv; |
| 755 | DECLARE_WAITQUEUE(wait, current); |
| 756 | int cap_type; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 757 | int stopmode; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 758 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 759 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 760 | return -EINVAL; |
| 761 | |
| 762 | /* This function assumes that you are allowed to stop the capture |
| 763 | and that we are actually capturing */ |
| 764 | |
| 765 | IVTV_DEBUG_INFO("Stop Capture\n"); |
| 766 | |
| 767 | if (s->type == IVTV_DEC_STREAM_TYPE_VOUT) |
| 768 | return 0; |
| 769 | if (atomic_read(&itv->capturing) == 0) |
| 770 | return 0; |
| 771 | |
| 772 | switch (s->type) { |
| 773 | case IVTV_ENC_STREAM_TYPE_YUV: |
| 774 | cap_type = 1; |
| 775 | break; |
| 776 | case IVTV_ENC_STREAM_TYPE_PCM: |
| 777 | cap_type = 1; |
| 778 | break; |
| 779 | case IVTV_ENC_STREAM_TYPE_VBI: |
| 780 | cap_type = 1; |
| 781 | break; |
| 782 | case IVTV_ENC_STREAM_TYPE_MPG: |
| 783 | default: |
| 784 | cap_type = 0; |
| 785 | break; |
| 786 | } |
| 787 | |
| 788 | /* Stop Capture Mode */ |
| 789 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { |
| 790 | stopmode = 0; |
| 791 | } else { |
| 792 | stopmode = 1; |
| 793 | } |
| 794 | |
| 795 | /* end_capture */ |
| 796 | /* when: 0 = end of GOP 1 = NOW!, type: 0 = mpeg, subtype: 3 = video+audio */ |
| 797 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, stopmode, cap_type, s->subtype); |
| 798 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 799 | if (!test_bit(IVTV_F_S_PASSTHROUGH, &s->s_flags)) { |
| 800 | if (s->type == IVTV_ENC_STREAM_TYPE_MPG && gop_end) { |
| 801 | /* only run these if we're shutting down the last cap */ |
| 802 | unsigned long duration; |
Hans Verkuil | 559e196 | 2007-08-23 17:51:07 -0300 | [diff] [blame] | 803 | unsigned long then = jiffies; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 804 | |
Hans Verkuil | fd8b281 | 2007-08-23 10:13:15 -0300 | [diff] [blame] | 805 | add_wait_queue(&itv->eos_waitq, &wait); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 806 | |
| 807 | set_current_state(TASK_INTERRUPTIBLE); |
| 808 | |
| 809 | /* wait 2s for EOS interrupt */ |
Mauro Carvalho Chehab | 201700d | 2007-07-19 11:21:04 -0300 | [diff] [blame] | 810 | while (!test_bit(IVTV_F_I_EOS, &itv->i_flags) && |
Julia Lawall | 168c626 | 2008-04-16 16:13:15 -0300 | [diff] [blame] | 811 | time_before(jiffies, |
| 812 | then + msecs_to_jiffies(2000))) { |
Mauro Carvalho Chehab | 201700d | 2007-07-19 11:21:04 -0300 | [diff] [blame] | 813 | schedule_timeout(msecs_to_jiffies(10)); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 814 | } |
| 815 | |
| 816 | /* To convert jiffies to ms, we must multiply by 1000 |
| 817 | * and divide by HZ. To avoid runtime division, we |
| 818 | * convert this to multiplication by 1000/HZ. |
| 819 | * Since integer division truncates, we get the best |
| 820 | * accuracy if we do a rounding calculation of the constant. |
| 821 | * Think of the case where HZ is 1024. |
| 822 | */ |
| 823 | duration = ((1000 + HZ / 2) / HZ) * (jiffies - then); |
| 824 | |
| 825 | if (!test_bit(IVTV_F_I_EOS, &itv->i_flags)) { |
| 826 | IVTV_DEBUG_WARN("%s: EOS interrupt not received! stopping anyway.\n", s->name); |
| 827 | IVTV_DEBUG_WARN("%s: waited %lu ms.\n", s->name, duration); |
| 828 | } else { |
| 829 | IVTV_DEBUG_INFO("%s: EOS took %lu ms to occur.\n", s->name, duration); |
| 830 | } |
| 831 | set_current_state(TASK_RUNNING); |
Hans Verkuil | fd8b281 | 2007-08-23 10:13:15 -0300 | [diff] [blame] | 832 | remove_wait_queue(&itv->eos_waitq, &wait); |
Hans Verkuil | 559e196 | 2007-08-23 17:51:07 -0300 | [diff] [blame] | 833 | set_bit(IVTV_F_S_STREAMOFF, &s->s_flags); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 834 | } |
| 835 | |
Hans Verkuil | 3562c43 | 2007-08-18 11:46:05 -0300 | [diff] [blame] | 836 | /* Handle any pending interrupts */ |
| 837 | ivtv_msleep_timeout(100, 1); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 838 | } |
| 839 | |
| 840 | atomic_dec(&itv->capturing); |
| 841 | |
| 842 | /* Clear capture and no-read bits */ |
| 843 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); |
| 844 | |
| 845 | if (s->type == IVTV_ENC_STREAM_TYPE_VBI) |
| 846 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VBI_CAP); |
| 847 | |
| 848 | if (atomic_read(&itv->capturing) > 0) { |
| 849 | return 0; |
| 850 | } |
| 851 | |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 852 | cx2341x_handler_set_busy(&itv->cxhdl, 0); |
| 853 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 854 | /* Set the following Interrupt mask bits for capture */ |
| 855 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_CAPTURE); |
Hans Verkuil | e17a06b | 2007-08-18 15:48:42 -0300 | [diff] [blame] | 856 | del_timer(&itv->dma_timer); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 857 | |
Hans Verkuil | f885969 | 2007-07-10 14:58:33 -0300 | [diff] [blame] | 858 | /* event notification (off) */ |
| 859 | if (test_and_clear_bit(IVTV_F_I_DIG_RST, &itv->i_flags)) { |
| 860 | /* type: 0 = refresh */ |
| 861 | /* on/off: 0 = off, intr: 0x10000000, mbox_id: -1: none */ |
| 862 | ivtv_vapi(itv, CX2341X_ENC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_ENC_VIM_RST, -1); |
| 863 | ivtv_set_irq_mask(itv, IVTV_IRQ_ENC_VIM_RST); |
| 864 | } |
| 865 | |
Ian Armstrong | 9a766d5 | 2010-03-06 21:37:04 -0300 | [diff] [blame] | 866 | /* Raw-passthrough is implied on start. Make sure it's stopped so |
| 867 | the encoder will re-initialize when next started */ |
| 868 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, 1, 2, 7); |
| 869 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 870 | wake_up(&s->waitq); |
| 871 | |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts) |
| 876 | { |
Hans Verkuil | 0925019 | 2010-03-27 14:10:13 -0300 | [diff] [blame] | 877 | static const struct v4l2_event ev = { |
| 878 | .type = V4L2_EVENT_EOS, |
| 879 | }; |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 880 | struct ivtv *itv = s->itv; |
| 881 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 882 | if (s->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 883 | return -EINVAL; |
| 884 | |
| 885 | if (s->type != IVTV_DEC_STREAM_TYPE_YUV && s->type != IVTV_DEC_STREAM_TYPE_MPG) |
| 886 | return -EINVAL; |
| 887 | |
| 888 | if (!test_bit(IVTV_F_S_STREAMING, &s->s_flags)) |
| 889 | return 0; |
| 890 | |
Hans Verkuil | c438509 | 2007-06-07 09:04:03 -0300 | [diff] [blame] | 891 | IVTV_DEBUG_INFO("Stop Decode at %llu, flags: %x\n", (unsigned long long)pts, flags); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 892 | |
| 893 | /* Stop Decoder */ |
| 894 | if (!(flags & VIDEO_CMD_STOP_IMMEDIATELY) || pts) { |
| 895 | u32 tmp = 0; |
| 896 | |
| 897 | /* Wait until the decoder is no longer running */ |
| 898 | if (pts) { |
| 899 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, |
| 900 | 0, (u32)(pts & 0xffffffff), (u32)(pts >> 32)); |
| 901 | } |
| 902 | while (1) { |
| 903 | u32 data[CX2341X_MBOX_MAX_DATA]; |
| 904 | ivtv_vapi_result(itv, data, CX2341X_DEC_GET_XFER_INFO, 0); |
| 905 | if (s->q_full.buffers + s->q_dma.buffers == 0) { |
| 906 | if (tmp == data[3]) |
| 907 | break; |
| 908 | tmp = data[3]; |
| 909 | } |
Mauro Carvalho Chehab | 201700d | 2007-07-19 11:21:04 -0300 | [diff] [blame] | 910 | if (ivtv_msleep_timeout(100, 1)) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 911 | break; |
| 912 | } |
| 913 | } |
| 914 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, flags & VIDEO_CMD_STOP_TO_BLACK, 0, 0); |
| 915 | |
| 916 | /* turn off notification of dual/stereo mode change */ |
| 917 | ivtv_vapi(itv, CX2341X_DEC_SET_EVENT_NOTIFICATION, 4, 0, 0, IVTV_IRQ_DEC_AUD_MODE_CHG, -1); |
| 918 | |
| 919 | ivtv_set_irq_mask(itv, IVTV_IRQ_MASK_DECODE); |
Hans Verkuil | e17a06b | 2007-08-18 15:48:42 -0300 | [diff] [blame] | 920 | del_timer(&itv->dma_timer); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 921 | |
| 922 | clear_bit(IVTV_F_S_NEEDS_DATA, &s->s_flags); |
| 923 | clear_bit(IVTV_F_S_STREAMING, &s->s_flags); |
| 924 | ivtv_flush_queues(s); |
| 925 | |
Ian Armstrong | f06b9bd | 2010-06-20 15:12:28 -0300 | [diff] [blame] | 926 | /* decoder needs time to settle */ |
| 927 | ivtv_msleep_timeout(40, 0); |
| 928 | |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 929 | /* decrement decoding */ |
| 930 | atomic_dec(&itv->decoding); |
| 931 | |
| 932 | set_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags); |
| 933 | wake_up(&itv->event_waitq); |
Hans Verkuil | 0925019 | 2010-03-27 14:10:13 -0300 | [diff] [blame] | 934 | v4l2_event_queue(s->vdev, &ev); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 935 | |
| 936 | /* wake up wait queues */ |
| 937 | wake_up(&s->waitq); |
| 938 | |
| 939 | return 0; |
| 940 | } |
| 941 | |
| 942 | int ivtv_passthrough_mode(struct ivtv *itv, int enable) |
| 943 | { |
| 944 | struct ivtv_stream *yuv_stream = &itv->streams[IVTV_ENC_STREAM_TYPE_YUV]; |
| 945 | struct ivtv_stream *dec_stream = &itv->streams[IVTV_DEC_STREAM_TYPE_YUV]; |
| 946 | |
Hans Verkuil | 8ac05ae | 2009-02-07 07:02:27 -0300 | [diff] [blame] | 947 | if (yuv_stream->vdev == NULL || dec_stream->vdev == NULL) |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 948 | return -EINVAL; |
| 949 | |
| 950 | IVTV_DEBUG_INFO("ivtv ioctl: Select passthrough mode\n"); |
| 951 | |
| 952 | /* Prevent others from starting/stopping streams while we |
| 953 | initiate/terminate passthrough mode */ |
| 954 | if (enable) { |
| 955 | if (itv->output_mode == OUT_PASSTHROUGH) { |
| 956 | return 0; |
| 957 | } |
| 958 | if (ivtv_set_output_mode(itv, OUT_PASSTHROUGH) != OUT_PASSTHROUGH) |
| 959 | return -EBUSY; |
| 960 | |
| 961 | /* Fully initialize stream, and then unflag init */ |
| 962 | set_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); |
| 963 | set_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); |
| 964 | |
| 965 | /* Setup YUV Decoder */ |
| 966 | ivtv_setup_v4l2_decode_stream(dec_stream); |
| 967 | |
| 968 | /* Start Decoder */ |
| 969 | ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, 0, 1); |
| 970 | atomic_inc(&itv->decoding); |
| 971 | |
| 972 | /* Setup capture if not already done */ |
| 973 | if (atomic_read(&itv->capturing) == 0) { |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 974 | cx2341x_handler_setup(&itv->cxhdl); |
| 975 | cx2341x_handler_set_busy(&itv->cxhdl, 1); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 976 | } |
| 977 | |
| 978 | /* Start Passthrough Mode */ |
| 979 | ivtv_vapi(itv, CX2341X_ENC_START_CAPTURE, 2, 2, 11); |
| 980 | atomic_inc(&itv->capturing); |
| 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | if (itv->output_mode != OUT_PASSTHROUGH) |
| 985 | return 0; |
| 986 | |
| 987 | /* Stop Passthrough Mode */ |
| 988 | ivtv_vapi(itv, CX2341X_ENC_STOP_CAPTURE, 3, 1, 2, 11); |
| 989 | ivtv_vapi(itv, CX2341X_DEC_STOP_PLAYBACK, 3, 1, 0, 0); |
| 990 | |
| 991 | atomic_dec(&itv->capturing); |
| 992 | atomic_dec(&itv->decoding); |
| 993 | clear_bit(IVTV_F_S_PASSTHROUGH, &dec_stream->s_flags); |
| 994 | clear_bit(IVTV_F_S_STREAMING, &dec_stream->s_flags); |
| 995 | itv->output_mode = OUT_NONE; |
Hans Verkuil | f7b80e6 | 2010-06-27 06:07:26 -0300 | [diff] [blame] | 996 | if (atomic_read(&itv->capturing) == 0) |
| 997 | cx2341x_handler_set_busy(&itv->cxhdl, 0); |
Hans Verkuil | 1a0adaf | 2007-04-27 12:31:25 -0300 | [diff] [blame] | 998 | |
| 999 | return 0; |
| 1000 | } |