Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 1 | /* |
| 2 | * cx18 init/start/stop/exit stream functions |
| 3 | * |
| 4 | * Derived from ivtv-streams.c |
| 5 | * |
| 6 | * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> |
Andy Walls | 1ed9dcc | 2008-11-22 01:37:34 -0300 | [diff] [blame] | 7 | * Copyright (C) 2008 Andy Walls <awalls@radix.net> |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 22 | * 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #include "cx18-driver.h" |
Andy Walls | b152642 | 2008-08-30 16:03:44 -0300 | [diff] [blame] | 26 | #include "cx18-io.h" |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 27 | #include "cx18-fileops.h" |
| 28 | #include "cx18-mailbox.h" |
| 29 | #include "cx18-i2c.h" |
| 30 | #include "cx18-queue.h" |
| 31 | #include "cx18-ioctl.h" |
| 32 | #include "cx18-streams.h" |
| 33 | #include "cx18-cards.h" |
| 34 | #include "cx18-scb.h" |
| 35 | #include "cx18-av-core.h" |
| 36 | #include "cx18-dvb.h" |
| 37 | |
| 38 | #define CX18_DSP0_INTERRUPT_MASK 0xd0004C |
| 39 | |
| 40 | static struct file_operations cx18_v4l2_enc_fops = { |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 41 | .owner = THIS_MODULE, |
| 42 | .read = cx18_v4l2_read, |
| 43 | .open = cx18_v4l2_open, |
Andy Walls | 3b6fe58 | 2008-06-21 08:36:31 -0300 | [diff] [blame] | 44 | /* FIXME change to video_ioctl2 if serialization lock can be removed */ |
Hans Verkuil | daf20d9 | 2008-05-12 11:21:58 -0300 | [diff] [blame] | 45 | .ioctl = cx18_v4l2_ioctl, |
| 46 | .compat_ioctl = v4l_compat_ioctl32, |
| 47 | .release = cx18_v4l2_close, |
| 48 | .poll = cx18_v4l2_enc_poll, |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 49 | }; |
| 50 | |
| 51 | /* offset from 0 to register ts v4l2 minors on */ |
| 52 | #define CX18_V4L2_ENC_TS_OFFSET 16 |
| 53 | /* offset from 0 to register pcm v4l2 minors on */ |
| 54 | #define CX18_V4L2_ENC_PCM_OFFSET 24 |
| 55 | /* offset from 0 to register yuv v4l2 minors on */ |
| 56 | #define CX18_V4L2_ENC_YUV_OFFSET 32 |
| 57 | |
| 58 | static struct { |
| 59 | const char *name; |
| 60 | int vfl_type; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 61 | int num_offset; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 62 | int dma; |
| 63 | enum v4l2_buf_type buf_type; |
| 64 | struct file_operations *fops; |
| 65 | } cx18_stream_info[] = { |
| 66 | { /* CX18_ENC_STREAM_TYPE_MPG */ |
| 67 | "encoder MPEG", |
| 68 | VFL_TYPE_GRABBER, 0, |
| 69 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 70 | &cx18_v4l2_enc_fops |
| 71 | }, |
| 72 | { /* CX18_ENC_STREAM_TYPE_TS */ |
| 73 | "TS", |
| 74 | VFL_TYPE_GRABBER, -1, |
| 75 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 76 | &cx18_v4l2_enc_fops |
| 77 | }, |
| 78 | { /* CX18_ENC_STREAM_TYPE_YUV */ |
| 79 | "encoder YUV", |
| 80 | VFL_TYPE_GRABBER, CX18_V4L2_ENC_YUV_OFFSET, |
| 81 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 82 | &cx18_v4l2_enc_fops |
| 83 | }, |
| 84 | { /* CX18_ENC_STREAM_TYPE_VBI */ |
| 85 | "encoder VBI", |
| 86 | VFL_TYPE_VBI, 0, |
| 87 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VBI_CAPTURE, |
| 88 | &cx18_v4l2_enc_fops |
| 89 | }, |
| 90 | { /* CX18_ENC_STREAM_TYPE_PCM */ |
| 91 | "encoder PCM audio", |
| 92 | VFL_TYPE_GRABBER, CX18_V4L2_ENC_PCM_OFFSET, |
| 93 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_PRIVATE, |
| 94 | &cx18_v4l2_enc_fops |
| 95 | }, |
| 96 | { /* CX18_ENC_STREAM_TYPE_IDX */ |
| 97 | "encoder IDX", |
| 98 | VFL_TYPE_GRABBER, -1, |
| 99 | PCI_DMA_FROMDEVICE, V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 100 | &cx18_v4l2_enc_fops |
| 101 | }, |
| 102 | { /* CX18_ENC_STREAM_TYPE_RAD */ |
| 103 | "encoder radio", |
| 104 | VFL_TYPE_RADIO, 0, |
| 105 | PCI_DMA_NONE, V4L2_BUF_TYPE_PRIVATE, |
| 106 | &cx18_v4l2_enc_fops |
| 107 | }, |
| 108 | }; |
| 109 | |
| 110 | static void cx18_stream_init(struct cx18 *cx, int type) |
| 111 | { |
| 112 | struct cx18_stream *s = &cx->streams[type]; |
| 113 | struct video_device *dev = s->v4l2dev; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 114 | |
| 115 | /* we need to keep v4l2dev, so restore it afterwards */ |
| 116 | memset(s, 0, sizeof(*s)); |
| 117 | s->v4l2dev = dev; |
| 118 | |
| 119 | /* initialize cx18_stream fields */ |
| 120 | s->cx = cx; |
| 121 | s->type = type; |
| 122 | s->name = cx18_stream_info[type].name; |
Andy Walls | d3c5e70 | 2008-08-23 16:42:29 -0300 | [diff] [blame] | 123 | s->handle = CX18_INVALID_TASK_HANDLE; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 124 | |
| 125 | s->dma = cx18_stream_info[type].dma; |
Andy Walls | 6ecd86d | 2008-12-07 23:30:17 -0300 | [diff] [blame] | 126 | s->buffers = cx->stream_buffers[type]; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 127 | s->buf_size = cx->stream_buf_size[type]; |
Andy Walls | 6ecd86d | 2008-12-07 23:30:17 -0300 | [diff] [blame] | 128 | |
Andy Walls | f576cee | 2008-11-16 20:18:05 -0300 | [diff] [blame] | 129 | mutex_init(&s->qlock); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 130 | init_waitqueue_head(&s->waitq); |
| 131 | s->id = -1; |
| 132 | cx18_queue_init(&s->q_free); |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 133 | cx18_queue_init(&s->q_busy); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 134 | cx18_queue_init(&s->q_full); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | static int cx18_prep_dev(struct cx18 *cx, int type) |
| 138 | { |
| 139 | struct cx18_stream *s = &cx->streams[type]; |
| 140 | u32 cap = cx->v4l2_cap; |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 141 | int num_offset = cx18_stream_info[type].num_offset; |
| 142 | int num = cx->num + cx18_first_minor + num_offset; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 143 | |
| 144 | /* These four fields are always initialized. If v4l2dev == NULL, then |
| 145 | this stream is not in use. In that case no other fields but these |
| 146 | four can be used. */ |
| 147 | s->v4l2dev = NULL; |
| 148 | s->cx = cx; |
| 149 | s->type = type; |
| 150 | s->name = cx18_stream_info[type].name; |
| 151 | |
| 152 | /* Check whether the radio is supported */ |
| 153 | if (type == CX18_ENC_STREAM_TYPE_RAD && !(cap & V4L2_CAP_RADIO)) |
| 154 | return 0; |
| 155 | |
| 156 | /* Check whether VBI is supported */ |
| 157 | if (type == CX18_ENC_STREAM_TYPE_VBI && |
| 158 | !(cap & (V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE))) |
| 159 | return 0; |
| 160 | |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 161 | /* User explicitly selected 0 buffers for these streams, so don't |
| 162 | create them. */ |
| 163 | if (cx18_stream_info[type].dma != PCI_DMA_NONE && |
Andy Walls | 6ecd86d | 2008-12-07 23:30:17 -0300 | [diff] [blame] | 164 | cx->stream_buffers[type] == 0) { |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 165 | CX18_INFO("Disabled %s device\n", cx18_stream_info[type].name); |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | cx18_stream_init(cx, type); |
| 170 | |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 171 | if (num_offset == -1) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 172 | return 0; |
| 173 | |
| 174 | /* allocate and initialize the v4l2 video device structure */ |
| 175 | s->v4l2dev = video_device_alloc(); |
| 176 | if (s->v4l2dev == NULL) { |
| 177 | CX18_ERR("Couldn't allocate v4l2 video_device for %s\n", |
| 178 | s->name); |
| 179 | return -ENOMEM; |
| 180 | } |
| 181 | |
Hans Verkuil | 37f89f9 | 2008-06-22 11:57:31 -0300 | [diff] [blame] | 182 | snprintf(s->v4l2dev->name, sizeof(s->v4l2dev->name), "cx18-%d", |
| 183 | cx->num); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 184 | |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 185 | s->v4l2dev->num = num; |
Hans Verkuil | 5e85e73 | 2008-07-20 06:31:39 -0300 | [diff] [blame] | 186 | s->v4l2dev->parent = &cx->dev->dev; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 187 | s->v4l2dev->fops = cx18_stream_info[type].fops; |
| 188 | s->v4l2dev->release = video_device_release; |
Andy Walls | 3b6fe58 | 2008-06-21 08:36:31 -0300 | [diff] [blame] | 189 | s->v4l2dev->tvnorms = V4L2_STD_ALL; |
| 190 | cx18_set_funcs(s->v4l2dev); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | /* Initialize v4l2 variables and register v4l2 devices */ |
| 195 | int cx18_streams_setup(struct cx18 *cx) |
| 196 | { |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 197 | int type, ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 198 | |
| 199 | /* Setup V4L2 Devices */ |
| 200 | for (type = 0; type < CX18_MAX_STREAMS; type++) { |
| 201 | /* Prepare device */ |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 202 | ret = cx18_prep_dev(cx, type); |
| 203 | if (ret < 0) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 204 | break; |
| 205 | |
| 206 | /* Allocate Stream */ |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 207 | ret = cx18_stream_alloc(&cx->streams[type]); |
| 208 | if (ret < 0) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 209 | break; |
| 210 | } |
| 211 | if (type == CX18_MAX_STREAMS) |
| 212 | return 0; |
| 213 | |
| 214 | /* One or more streams could not be initialized. Clean 'em all up. */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 215 | cx18_streams_cleanup(cx, 0); |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 216 | return ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 217 | } |
| 218 | |
| 219 | static int cx18_reg_dev(struct cx18 *cx, int type) |
| 220 | { |
| 221 | struct cx18_stream *s = &cx->streams[type]; |
| 222 | int vfl_type = cx18_stream_info[type].vfl_type; |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 223 | int num, ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 224 | |
| 225 | /* TODO: Shouldn't this be a VFL_TYPE_TRANSPORT or something? |
| 226 | * We need a VFL_TYPE_TS defined. |
| 227 | */ |
| 228 | if (strcmp("TS", s->name) == 0) { |
| 229 | /* just return if no DVB is supported */ |
| 230 | if ((cx->card->hw_all & CX18_HW_DVB) == 0) |
| 231 | return 0; |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 232 | ret = cx18_dvb_register(s); |
| 233 | if (ret < 0) { |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 234 | CX18_ERR("DVB failed to register\n"); |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 235 | return ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 236 | } |
| 237 | } |
| 238 | |
| 239 | if (s->v4l2dev == NULL) |
| 240 | return 0; |
| 241 | |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 242 | num = s->v4l2dev->num; |
| 243 | /* card number + user defined offset + device offset */ |
| 244 | if (type != CX18_ENC_STREAM_TYPE_MPG) { |
| 245 | struct cx18_stream *s_mpg = &cx->streams[CX18_ENC_STREAM_TYPE_MPG]; |
| 246 | |
| 247 | if (s_mpg->v4l2dev) |
| 248 | num = s_mpg->v4l2dev->num + cx18_stream_info[type].num_offset; |
| 249 | } |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 250 | |
| 251 | /* Register device. First try the desired minor, then any free one. */ |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 252 | ret = video_register_device(s->v4l2dev, vfl_type, num); |
| 253 | if (ret < 0) { |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 254 | CX18_ERR("Couldn't register v4l2 device for %s kernel number %d\n", |
| 255 | s->name, num); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 256 | video_device_release(s->v4l2dev); |
| 257 | s->v4l2dev = NULL; |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 258 | return ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 259 | } |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 260 | num = s->v4l2dev->num; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 261 | |
| 262 | switch (vfl_type) { |
| 263 | case VFL_TYPE_GRABBER: |
Andy Walls | 6ecd86d | 2008-12-07 23:30:17 -0300 | [diff] [blame] | 264 | CX18_INFO("Registered device video%d for %s (%d x %d kB)\n", |
| 265 | num, s->name, cx->stream_buffers[type], |
| 266 | cx->stream_buf_size[type]/1024); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 267 | break; |
| 268 | |
| 269 | case VFL_TYPE_RADIO: |
| 270 | CX18_INFO("Registered device radio%d for %s\n", |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 271 | num, s->name); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 272 | break; |
| 273 | |
| 274 | case VFL_TYPE_VBI: |
Andy Walls | 6ecd86d | 2008-12-07 23:30:17 -0300 | [diff] [blame] | 275 | if (cx->stream_buffers[type]) |
| 276 | CX18_INFO("Registered device vbi%d for %s " |
| 277 | "(%d x %d bytes)\n", |
| 278 | num, s->name, cx->stream_buffers[type], |
| 279 | cx->stream_buf_size[type]); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 280 | else |
| 281 | CX18_INFO("Registered device vbi%d for %s\n", |
Hans Verkuil | dd89601 | 2008-10-04 08:36:54 -0300 | [diff] [blame] | 282 | num, s->name); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 283 | break; |
| 284 | } |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | /* Register v4l2 devices */ |
| 290 | int cx18_streams_register(struct cx18 *cx) |
| 291 | { |
| 292 | int type; |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 293 | int err; |
| 294 | int ret = 0; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 295 | |
| 296 | /* Register V4L2 devices */ |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 297 | for (type = 0; type < CX18_MAX_STREAMS; type++) { |
| 298 | err = cx18_reg_dev(cx, type); |
| 299 | if (err && ret == 0) |
| 300 | ret = err; |
| 301 | } |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 302 | |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 303 | if (ret == 0) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 304 | return 0; |
| 305 | |
| 306 | /* One or more streams could not be initialized. Clean 'em all up. */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 307 | cx18_streams_cleanup(cx, 1); |
Andy Walls | 9b4a7c8 | 2008-10-18 10:20:25 -0300 | [diff] [blame] | 308 | return ret; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | /* Unregister v4l2 devices */ |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 312 | void cx18_streams_cleanup(struct cx18 *cx, int unregister) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 313 | { |
| 314 | struct video_device *vdev; |
| 315 | int type; |
| 316 | |
| 317 | /* Teardown all streams */ |
| 318 | for (type = 0; type < CX18_MAX_STREAMS; type++) { |
Hans Verkuil | fac3639 | 2008-07-18 10:07:10 -0300 | [diff] [blame] | 319 | if (cx->streams[type].dvb.enabled) { |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 320 | cx18_dvb_unregister(&cx->streams[type]); |
Hans Verkuil | fac3639 | 2008-07-18 10:07:10 -0300 | [diff] [blame] | 321 | cx->streams[type].dvb.enabled = false; |
| 322 | } |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 323 | |
| 324 | vdev = cx->streams[type].v4l2dev; |
| 325 | |
| 326 | cx->streams[type].v4l2dev = NULL; |
| 327 | if (vdev == NULL) |
| 328 | continue; |
| 329 | |
| 330 | cx18_stream_free(&cx->streams[type]); |
| 331 | |
Hans Verkuil | 3f98387 | 2008-05-01 10:31:12 -0300 | [diff] [blame] | 332 | /* Unregister or release device */ |
| 333 | if (unregister) |
| 334 | video_unregister_device(vdev); |
| 335 | else |
| 336 | video_device_release(vdev); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 337 | } |
| 338 | } |
| 339 | |
| 340 | static void cx18_vbi_setup(struct cx18_stream *s) |
| 341 | { |
| 342 | struct cx18 *cx = s->cx; |
Andy Walls | dd07343 | 2008-12-12 16:24:04 -0300 | [diff] [blame^] | 343 | int raw = cx18_raw_vbi(cx); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 344 | u32 data[CX2341X_MBOX_MAX_DATA]; |
| 345 | int lines; |
| 346 | |
| 347 | if (cx->is_60hz) { |
| 348 | cx->vbi.count = 12; |
| 349 | cx->vbi.start[0] = 10; |
| 350 | cx->vbi.start[1] = 273; |
| 351 | } else { /* PAL/SECAM */ |
| 352 | cx->vbi.count = 18; |
| 353 | cx->vbi.start[0] = 6; |
| 354 | cx->vbi.start[1] = 318; |
| 355 | } |
| 356 | |
| 357 | /* setup VBI registers */ |
| 358 | cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in); |
| 359 | |
| 360 | /* determine number of lines and total number of VBI bytes. |
| 361 | A raw line takes 1443 bytes: 2 * 720 + 4 byte frame header - 1 |
| 362 | The '- 1' byte is probably an unused U or V byte. Or something... |
| 363 | A sliced line takes 51 bytes: 4 byte frame header, 4 byte internal |
| 364 | header, 42 data bytes + checksum (to be confirmed) */ |
| 365 | if (raw) { |
| 366 | lines = cx->vbi.count * 2; |
| 367 | } else { |
| 368 | lines = cx->is_60hz ? 24 : 38; |
| 369 | if (cx->is_60hz) |
| 370 | lines += 2; |
| 371 | } |
| 372 | |
| 373 | cx->vbi.enc_size = lines * |
| 374 | (raw ? cx->vbi.raw_size : cx->vbi.sliced_size); |
| 375 | |
| 376 | data[0] = s->handle; |
| 377 | /* Lines per field */ |
| 378 | data[1] = (lines / 2) | ((lines / 2) << 16); |
| 379 | /* bytes per line */ |
| 380 | data[2] = (raw ? cx->vbi.raw_size : cx->vbi.sliced_size); |
| 381 | /* Every X number of frames a VBI interrupt arrives |
| 382 | (frames as in 25 or 30 fps) */ |
| 383 | data[3] = 1; |
| 384 | /* Setup VBI for the cx25840 digitizer */ |
| 385 | if (raw) { |
| 386 | data[4] = 0x20602060; |
| 387 | data[5] = 0x30703070; |
| 388 | } else { |
| 389 | data[4] = 0xB0F0B0F0; |
| 390 | data[5] = 0xA0E0A0E0; |
| 391 | } |
| 392 | |
| 393 | CX18_DEBUG_INFO("Setup VBI h: %d lines %x bpl %d fr %d %x %x\n", |
| 394 | data[0], data[1], data[2], data[3], data[4], data[5]); |
| 395 | |
| 396 | if (s->type == CX18_ENC_STREAM_TYPE_VBI) |
| 397 | cx18_api(cx, CX18_CPU_SET_RAW_VBI_PARAM, 6, data); |
| 398 | } |
| 399 | |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 400 | struct cx18_queue *cx18_stream_put_buf_fw(struct cx18_stream *s, |
| 401 | struct cx18_buffer *buf) |
| 402 | { |
| 403 | struct cx18 *cx = s->cx; |
| 404 | struct cx18_queue *q; |
| 405 | |
| 406 | /* Don't give it to the firmware, if we're not running a capture */ |
| 407 | if (s->handle == CX18_INVALID_TASK_HANDLE || |
| 408 | !test_bit(CX18_F_S_STREAMING, &s->s_flags)) |
| 409 | return cx18_enqueue(s, buf, &s->q_free); |
| 410 | |
| 411 | q = cx18_enqueue(s, buf, &s->q_busy); |
| 412 | if (q != &s->q_busy) |
| 413 | return q; /* The firmware has the max buffers it can handle */ |
| 414 | |
| 415 | cx18_buf_sync_for_device(s, buf); |
| 416 | cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle, |
| 417 | (void __iomem *) &cx->scb->cpu_mdl[buf->id] - cx->enc_mem, |
| 418 | 1, buf->id, s->buf_size); |
| 419 | return q; |
| 420 | } |
| 421 | |
Andy Walls | abb096d | 2008-12-12 15:50:27 -0300 | [diff] [blame] | 422 | void cx18_stream_load_fw_queue(struct cx18_stream *s) |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 423 | { |
Andy Walls | abb096d | 2008-12-12 15:50:27 -0300 | [diff] [blame] | 424 | struct cx18_queue *q; |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 425 | struct cx18_buffer *buf; |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 426 | |
Andy Walls | abb096d | 2008-12-12 15:50:27 -0300 | [diff] [blame] | 427 | if (atomic_read(&s->q_free.buffers) == 0 || |
| 428 | atomic_read(&s->q_busy.buffers) >= 63) |
| 429 | return; |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 430 | |
Andy Walls | abb096d | 2008-12-12 15:50:27 -0300 | [diff] [blame] | 431 | /* Move from q_free to q_busy notifying the firmware, until the limit */ |
| 432 | do { |
| 433 | buf = cx18_dequeue(s, &s->q_free); |
| 434 | if (buf == NULL) |
| 435 | break; |
| 436 | q = cx18_stream_put_buf_fw(s, buf); |
| 437 | } while (atomic_read(&s->q_busy.buffers) < 63 && q == &s->q_busy); |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 438 | } |
| 439 | |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 440 | int cx18_start_v4l2_encode_stream(struct cx18_stream *s) |
| 441 | { |
| 442 | u32 data[MAX_MB_ARGUMENTS]; |
| 443 | struct cx18 *cx = s->cx; |
| 444 | struct list_head *p; |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 445 | struct cx18_buffer *buf; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 446 | int ts = 0; |
| 447 | int captype = 0; |
| 448 | |
| 449 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) |
| 450 | return -EINVAL; |
| 451 | |
| 452 | CX18_DEBUG_INFO("Start encoder stream %s\n", s->name); |
| 453 | |
| 454 | switch (s->type) { |
| 455 | case CX18_ENC_STREAM_TYPE_MPG: |
| 456 | captype = CAPTURE_CHANNEL_TYPE_MPEG; |
| 457 | cx->mpg_data_received = cx->vbi_data_inserted = 0; |
| 458 | cx->dualwatch_jiffies = jiffies; |
| 459 | cx->dualwatch_stereo_mode = cx->params.audio_properties & 0x300; |
| 460 | cx->search_pack_header = 0; |
| 461 | break; |
| 462 | |
| 463 | case CX18_ENC_STREAM_TYPE_TS: |
| 464 | captype = CAPTURE_CHANNEL_TYPE_TS; |
| 465 | ts = 1; |
| 466 | break; |
| 467 | case CX18_ENC_STREAM_TYPE_YUV: |
| 468 | captype = CAPTURE_CHANNEL_TYPE_YUV; |
| 469 | break; |
| 470 | case CX18_ENC_STREAM_TYPE_PCM: |
| 471 | captype = CAPTURE_CHANNEL_TYPE_PCM; |
| 472 | break; |
| 473 | case CX18_ENC_STREAM_TYPE_VBI: |
Andy Walls | dd07343 | 2008-12-12 16:24:04 -0300 | [diff] [blame^] | 474 | captype = cx18_raw_vbi(cx) ? |
| 475 | CAPTURE_CHANNEL_TYPE_VBI : CAPTURE_CHANNEL_TYPE_SLICED_VBI; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 476 | cx->vbi.frame = 0; |
| 477 | cx->vbi.inserted_frame = 0; |
| 478 | memset(cx->vbi.sliced_mpeg_size, |
| 479 | 0, sizeof(cx->vbi.sliced_mpeg_size)); |
| 480 | break; |
| 481 | default: |
| 482 | return -EINVAL; |
| 483 | } |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 484 | |
| 485 | /* mute/unmute video */ |
| 486 | cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, |
| 487 | s->handle, !!test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)); |
| 488 | |
| 489 | /* Clear Streamoff flags in case left from last capture */ |
| 490 | clear_bit(CX18_F_S_STREAMOFF, &s->s_flags); |
| 491 | |
| 492 | cx18_vapi_result(cx, data, CX18_CREATE_TASK, 1, CPU_CMD_MASK_CAPTURE); |
| 493 | s->handle = data[0]; |
| 494 | cx18_vapi(cx, CX18_CPU_SET_CHANNEL_TYPE, 2, s->handle, captype); |
| 495 | |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 496 | if (atomic_read(&cx->ana_capturing) == 0 && !ts) { |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 497 | /* Stuff from Windows, we don't know what it is */ |
| 498 | cx18_vapi(cx, CX18_CPU_SET_VER_CROP_LINE, 2, s->handle, 0); |
| 499 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 3, 1); |
| 500 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 8, 0); |
| 501 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 3, s->handle, 4, 1); |
| 502 | cx18_vapi(cx, CX18_CPU_SET_MISC_PARAMETERS, 2, s->handle, 12); |
| 503 | |
| 504 | cx18_vapi(cx, CX18_CPU_SET_CAPTURE_LINE_NO, 3, |
| 505 | s->handle, cx->digitizer, cx->digitizer); |
| 506 | |
| 507 | /* Setup VBI */ |
| 508 | if (cx->v4l2_cap & V4L2_CAP_VBI_CAPTURE) |
| 509 | cx18_vbi_setup(s); |
| 510 | |
| 511 | /* assign program index info. |
| 512 | Mask 7: select I/P/B, Num_req: 400 max */ |
| 513 | cx18_vapi_result(cx, data, CX18_CPU_SET_INDEXTABLE, 1, 0); |
| 514 | |
| 515 | /* Setup API for Stream */ |
| 516 | cx2341x_update(cx, cx18_api_func, NULL, &cx->params); |
| 517 | } |
| 518 | |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 519 | if (atomic_read(&cx->tot_capturing) == 0) { |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 520 | clear_bit(CX18_F_I_EOS, &cx->i_flags); |
Andy Walls | b152642 | 2008-08-30 16:03:44 -0300 | [diff] [blame] | 521 | cx18_write_reg(cx, 7, CX18_DSP0_INTERRUPT_MASK); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | cx18_vapi(cx, CX18_CPU_DE_SET_MDL_ACK, 3, s->handle, |
Al Viro | 990c81c | 2008-05-21 00:32:01 -0300 | [diff] [blame] | 525 | (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][0] - cx->enc_mem, |
| 526 | (void __iomem *)&cx->scb->cpu_mdl_ack[s->type][1] - cx->enc_mem); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 527 | |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 528 | /* Init all the cpu_mdls for this stream */ |
| 529 | cx18_flush_queues(s); |
| 530 | mutex_lock(&s->qlock); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 531 | list_for_each(p, &s->q_free.list) { |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 532 | buf = list_entry(p, struct cx18_buffer, list); |
Andy Walls | b152642 | 2008-08-30 16:03:44 -0300 | [diff] [blame] | 533 | cx18_writel(cx, buf->dma_handle, |
| 534 | &cx->scb->cpu_mdl[buf->id].paddr); |
| 535 | cx18_writel(cx, s->buf_size, &cx->scb->cpu_mdl[buf->id].length); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 536 | } |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 537 | mutex_unlock(&s->qlock); |
Andy Walls | abb096d | 2008-12-12 15:50:27 -0300 | [diff] [blame] | 538 | cx18_stream_load_fw_queue(s); |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 539 | |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 540 | /* begin_capture */ |
| 541 | if (cx18_vapi(cx, CX18_CPU_CAPTURE_START, 1, s->handle)) { |
| 542 | CX18_DEBUG_WARN("Error starting capture!\n"); |
Andy Walls | 3b5df8e | 2008-08-23 18:36:50 -0300 | [diff] [blame] | 543 | /* Ensure we're really not capturing before releasing MDLs */ |
| 544 | if (s->type == CX18_ENC_STREAM_TYPE_MPG) |
| 545 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, 1); |
| 546 | else |
| 547 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle); |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 548 | clear_bit(CX18_F_S_STREAMING, &s->s_flags); |
| 549 | /* FIXME - CX18_F_S_STREAMOFF as well? */ |
Andy Walls | 3b5df8e | 2008-08-23 18:36:50 -0300 | [diff] [blame] | 550 | cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 551 | cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); |
Andy Walls | 66c2a6b | 2008-12-08 23:02:45 -0300 | [diff] [blame] | 552 | s->handle = CX18_INVALID_TASK_HANDLE; |
| 553 | if (atomic_read(&cx->tot_capturing) == 0) { |
| 554 | set_bit(CX18_F_I_EOS, &cx->i_flags); |
| 555 | cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK); |
| 556 | } |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 557 | return -EINVAL; |
| 558 | } |
| 559 | |
| 560 | /* you're live! sit back and await interrupts :) */ |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 561 | if (!ts) |
| 562 | atomic_inc(&cx->ana_capturing); |
| 563 | atomic_inc(&cx->tot_capturing); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 564 | return 0; |
| 565 | } |
| 566 | |
| 567 | void cx18_stop_all_captures(struct cx18 *cx) |
| 568 | { |
| 569 | int i; |
| 570 | |
| 571 | for (i = CX18_MAX_STREAMS - 1; i >= 0; i--) { |
| 572 | struct cx18_stream *s = &cx->streams[i]; |
| 573 | |
| 574 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) |
| 575 | continue; |
| 576 | if (test_bit(CX18_F_S_STREAMING, &s->s_flags)) |
| 577 | cx18_stop_v4l2_encode_stream(s, 0); |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end) |
| 582 | { |
| 583 | struct cx18 *cx = s->cx; |
| 584 | unsigned long then; |
| 585 | |
| 586 | if (s->v4l2dev == NULL && s->dvb.enabled == 0) |
| 587 | return -EINVAL; |
| 588 | |
| 589 | /* This function assumes that you are allowed to stop the capture |
| 590 | and that we are actually capturing */ |
| 591 | |
| 592 | CX18_DEBUG_INFO("Stop Capture\n"); |
| 593 | |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 594 | if (atomic_read(&cx->tot_capturing) == 0) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 595 | return 0; |
| 596 | |
| 597 | if (s->type == CX18_ENC_STREAM_TYPE_MPG) |
| 598 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 2, s->handle, !gop_end); |
| 599 | else |
| 600 | cx18_vapi(cx, CX18_CPU_CAPTURE_STOP, 1, s->handle); |
| 601 | |
| 602 | then = jiffies; |
| 603 | |
| 604 | if (s->type == CX18_ENC_STREAM_TYPE_MPG && gop_end) { |
| 605 | CX18_INFO("ignoring gop_end: not (yet?) supported by the firmware\n"); |
| 606 | } |
| 607 | |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 608 | if (s->type != CX18_ENC_STREAM_TYPE_TS) |
| 609 | atomic_dec(&cx->ana_capturing); |
| 610 | atomic_dec(&cx->tot_capturing); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 611 | |
| 612 | /* Clear capture and no-read bits */ |
| 613 | clear_bit(CX18_F_S_STREAMING, &s->s_flags); |
| 614 | |
Andy Walls | f68d0cf | 2008-11-05 21:19:15 -0300 | [diff] [blame] | 615 | /* Tell the CX23418 it can't use our buffers anymore */ |
| 616 | cx18_vapi(cx, CX18_CPU_DE_RELEASE_MDL, 1, s->handle); |
| 617 | |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 618 | cx18_vapi(cx, CX18_DESTROY_TASK, 1, s->handle); |
Andy Walls | d3c5e70 | 2008-08-23 16:42:29 -0300 | [diff] [blame] | 619 | s->handle = CX18_INVALID_TASK_HANDLE; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 620 | |
Hans Verkuil | 31554ae | 2008-05-25 11:21:27 -0300 | [diff] [blame] | 621 | if (atomic_read(&cx->tot_capturing) > 0) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 622 | return 0; |
| 623 | |
Andy Walls | b152642 | 2008-08-30 16:03:44 -0300 | [diff] [blame] | 624 | cx18_write_reg(cx, 5, CX18_DSP0_INTERRUPT_MASK); |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 625 | wake_up(&s->waitq); |
| 626 | |
| 627 | return 0; |
| 628 | } |
| 629 | |
| 630 | u32 cx18_find_handle(struct cx18 *cx) |
| 631 | { |
| 632 | int i; |
| 633 | |
| 634 | /* find first available handle to be used for global settings */ |
| 635 | for (i = 0; i < CX18_MAX_STREAMS; i++) { |
| 636 | struct cx18_stream *s = &cx->streams[i]; |
| 637 | |
Andy Walls | d3c5e70 | 2008-08-23 16:42:29 -0300 | [diff] [blame] | 638 | if (s->v4l2dev && (s->handle != CX18_INVALID_TASK_HANDLE)) |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 639 | return s->handle; |
| 640 | } |
Andy Walls | d3c5e70 | 2008-08-23 16:42:29 -0300 | [diff] [blame] | 641 | return CX18_INVALID_TASK_HANDLE; |
Hans Verkuil | 1c1e45d | 2008-04-28 20:24:33 -0300 | [diff] [blame] | 642 | } |
Andy Walls | ee2d64f | 2008-11-16 01:38:19 -0300 | [diff] [blame] | 643 | |
| 644 | struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle) |
| 645 | { |
| 646 | int i; |
| 647 | struct cx18_stream *s; |
| 648 | |
| 649 | if (handle == CX18_INVALID_TASK_HANDLE) |
| 650 | return NULL; |
| 651 | |
| 652 | for (i = 0; i < CX18_MAX_STREAMS; i++) { |
| 653 | s = &cx->streams[i]; |
| 654 | if (s->handle != handle) |
| 655 | continue; |
| 656 | if (s->v4l2dev || s->dvb.enabled) |
| 657 | return s; |
| 658 | } |
| 659 | return NULL; |
| 660 | } |