Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1 | /* |
| 2 | tm6000-video.c - driver for TM5600/TM6000 USB video capture devices |
| 3 | |
| 4 | Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org> |
| 5 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 6 | Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com> |
| 7 | - Fixed module load/unload |
| 8 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 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 version 2 |
| 12 | |
| 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. |
| 17 | |
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 | */ |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/errno.h> |
| 25 | #include <linux/fs.h> |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/mm.h> |
| 29 | #include <linux/ioport.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/sched.h> |
| 32 | #include <linux/random.h> |
| 33 | #include <linux/version.h> |
| 34 | #include <linux/usb.h> |
| 35 | #include <linux/videodev2.h> |
| 36 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 37 | #include <linux/videodev.h> |
| 38 | #endif |
| 39 | #include <linux/interrupt.h> |
| 40 | #include <linux/kthread.h> |
| 41 | #include <linux/highmem.h> |
| 42 | #include <linux/freezer.h> |
| 43 | |
| 44 | #include "tm6000-regs.h" |
| 45 | #include "tm6000.h" |
| 46 | |
| 47 | #define BUFFER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ |
| 48 | |
Michel Ludwig | 95a8382 | 2007-07-24 08:06:45 -0300 | [diff] [blame] | 49 | /* Limits minimum and default number of buffers */ |
| 50 | #define TM6000_MIN_BUF 4 |
| 51 | #define TM6000_DEF_BUF 8 |
| 52 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 53 | /* Declare static vars that will be used as parameters */ |
| 54 | static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ |
| 55 | static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
| 56 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 57 | /* Debug level */ |
| 58 | int tm6000_debug; |
| 59 | |
| 60 | /* supported controls */ |
| 61 | static struct v4l2_queryctrl tm6000_qctrl[] = { |
| 62 | { |
| 63 | .id = V4L2_CID_BRIGHTNESS, |
| 64 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 65 | .name = "Brightness", |
| 66 | .minimum = 0, |
| 67 | .maximum = 255, |
| 68 | .step = 1, |
| 69 | .default_value = 54, |
| 70 | .flags = 0, |
| 71 | }, { |
| 72 | .id = V4L2_CID_CONTRAST, |
| 73 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 74 | .name = "Contrast", |
| 75 | .minimum = 0, |
| 76 | .maximum = 255, |
| 77 | .step = 0x1, |
| 78 | .default_value = 119, |
| 79 | .flags = 0, |
| 80 | }, { |
| 81 | .id = V4L2_CID_SATURATION, |
| 82 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 83 | .name = "Saturation", |
| 84 | .minimum = 0, |
| 85 | .maximum = 255, |
| 86 | .step = 0x1, |
| 87 | .default_value = 112, |
| 88 | .flags = 0, |
| 89 | }, { |
| 90 | .id = V4L2_CID_HUE, |
| 91 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 92 | .name = "Hue", |
| 93 | .minimum = -128, |
| 94 | .maximum = 127, |
| 95 | .step = 0x1, |
| 96 | .default_value = 0, //4 ? |
| 97 | .flags = 0, |
| 98 | } |
| 99 | }; |
| 100 | |
| 101 | static int qctl_regs[ARRAY_SIZE(tm6000_qctrl)]; |
| 102 | |
| 103 | static struct tm6000_fmt format[] = { |
| 104 | { |
| 105 | .name = "4:2:2, packed, YVY2", |
| 106 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 107 | .depth = 16, |
| 108 | },{ |
| 109 | .name = "4:2:2, packed, UYVY", |
| 110 | .fourcc = V4L2_PIX_FMT_UYVY, |
| 111 | .depth = 16, |
| 112 | },{ |
| 113 | .name = "A/V + VBI mux packet", |
| 114 | .fourcc = V4L2_PIX_FMT_TM6000, |
| 115 | .depth = 16, |
| 116 | } |
| 117 | }; |
| 118 | |
| 119 | static LIST_HEAD(tm6000_corelist); |
| 120 | |
| 121 | /* ------------------------------------------------------------------ |
| 122 | DMA and thread functions |
| 123 | ------------------------------------------------------------------*/ |
| 124 | |
| 125 | #define norm_maxw(a) 720 |
Mauro Carvalho Chehab | 4475c04 | 2007-09-03 21:51:45 -0300 | [diff] [blame] | 126 | #define norm_maxh(a) 576 |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 127 | |
| 128 | //#define norm_minw(a) norm_maxw(a) |
| 129 | #define norm_minw(a) norm_maxw(a) |
| 130 | #define norm_minh(a) norm_maxh(a) |
| 131 | |
| 132 | /* |
| 133 | * video-buf generic routine to get the next available buffer |
| 134 | */ |
| 135 | static int inline get_next_buf (struct tm6000_dmaqueue *dma_q, |
| 136 | struct tm6000_buffer **buf) |
| 137 | { |
| 138 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 139 | |
| 140 | if (list_empty(&dma_q->active)) { |
| 141 | dprintk(dev, V4L2_DEBUG_QUEUE,"No active queue to serve\n"); |
| 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | *buf = list_entry(dma_q->active.next, |
| 146 | struct tm6000_buffer, vb.queue); |
| 147 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 148 | return 1; |
| 149 | } |
| 150 | |
| 151 | /* |
| 152 | * Announces that a buffer were filled and request the next |
| 153 | */ |
| 154 | static void inline buffer_filled (struct tm6000_core *dev, |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 155 | struct tm6000_dmaqueue *dma_q, |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 156 | struct tm6000_buffer *buf) |
| 157 | { |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 158 | /* Nobody is waiting something to be done, just return */ |
| 159 | if (!waitqueue_active(&buf->vb.done)) { |
| 160 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 161 | |
| 162 | printk(KERN_ERR "tm6000: buffer underrun at %ld\n", |
| 163 | jiffies); |
| 164 | |
| 165 | return; |
| 166 | } |
| 167 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 168 | /* Advice that buffer was filled */ |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 169 | dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n",buf,buf->vb.i); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 170 | buf->vb.state = STATE_DONE; |
| 171 | buf->vb.field_count++; |
| 172 | do_gettimeofday(&buf->vb.ts); |
| 173 | |
| 174 | list_del(&buf->vb.queue); |
| 175 | wake_up(&buf->vb.done); |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Macro to allow copying data into the proper memory type |
| 180 | */ |
| 181 | |
| 182 | #define bufcpy(buf,out_ptr,in_ptr,size) \ |
| 183 | { \ |
| 184 | if (__copy_to_user(out_ptr,in_ptr,size)!=0) \ |
| 185 | tm6000_err("copy_to_user failed.\n"); \ |
| 186 | } |
| 187 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 188 | |
| 189 | const char *tm6000_msg_type[]= { |
| 190 | "unknown(0)", //0 |
| 191 | "video", //1 |
| 192 | "audio", //2 |
| 193 | "vbi", //3 |
| 194 | "pts", //4 |
| 195 | "err", //5 |
| 196 | "unknown(6)", //6 |
| 197 | "unknown(7)", //7 |
| 198 | }; |
| 199 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 200 | /* |
| 201 | * Identify the tm5600/6000 buffer header type and properly handles |
| 202 | */ |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 203 | static int copy_packet (struct urb *urb, u32 header, u8 **ptr, u8 *endp, |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 204 | u8 *out_p, struct tm6000_buffer **buf) |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 205 | { |
| 206 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 207 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 208 | u8 c; |
| 209 | unsigned int cmd, cpysize, pktsize, size, field, block, line, pos=0; |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 210 | int rc=0; |
| 211 | /* FIXME: move to tm6000-isoc */ |
| 212 | static int last_line=-2, start_line=-2, last_field=-2; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 213 | |
| 214 | /* FIXME: this is the hardcoded window size |
| 215 | */ |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 216 | unsigned int linewidth=(*buf)->vb.width<<1; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 217 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 218 | |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 219 | if (!dev->isoc_ctl.cmd) { |
| 220 | c=(header>>24) & 0xff; |
| 221 | |
| 222 | /* split the header fields */ |
| 223 | size = (((header & 0x7e)<<1) -1) *4; |
| 224 | block = (header>>7) & 0xf; |
| 225 | field = (header>>11) & 0x1; |
| 226 | line = (header>>12) & 0x1ff; |
| 227 | cmd = (header>>21) & 0x7; |
| 228 | |
| 229 | /* Validates header fields */ |
| 230 | if(size>TM6000_URB_MSG_LEN) |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 231 | size = TM6000_URB_MSG_LEN; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 232 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 233 | if (cmd == TM6000_URB_MSG_VIDEO) { |
| 234 | if ((block+1)*TM6000_URB_MSG_LEN>linewidth) |
| 235 | cmd = TM6000_URB_MSG_ERR; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 236 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 237 | /* FIXME: Mounts the image as field0+field1 |
| 238 | * It should, instead, check if the user selected |
| 239 | * entrelaced or non-entrelaced mode |
| 240 | */ |
| 241 | pos= ((line<<1)+field)*linewidth + |
| 242 | block*TM6000_URB_MSG_LEN; |
| 243 | |
| 244 | /* Don't allow to write out of the buffer */ |
| 245 | if (pos+TM6000_URB_MSG_LEN > (*buf)->vb.size) { |
| 246 | dprintk(dev, V4L2_DEBUG_ISOC, |
| 247 | "ERR: size=%d, num=%d, line=%d, " |
| 248 | "field=%d\n", |
| 249 | size, block, line, field); |
| 250 | |
| 251 | cmd = TM6000_URB_MSG_ERR; |
| 252 | } |
| 253 | } else { |
| 254 | pos=0; |
| 255 | } |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 256 | |
| 257 | /* Prints debug info */ |
| 258 | dprintk(dev, V4L2_DEBUG_ISOC, "size=%d, num=%d, " |
| 259 | " line=%d, field=%d\n", |
| 260 | size, block, line, field); |
| 261 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 262 | if ((last_line!=line)&&(last_line+1!=line) && |
| 263 | (cmd != TM6000_URB_MSG_ERR) ) { |
| 264 | if (cmd != TM6000_URB_MSG_VIDEO) { |
| 265 | dprintk(dev, V4L2_DEBUG_ISOC, "cmd=%d, " |
| 266 | "size=%d, num=%d, line=%d, field=%d\n", |
| 267 | cmd, size, block, line, field); |
| 268 | } |
| 269 | if (start_line<0) |
| 270 | start_line=last_line; |
| 271 | /* Prints debug info */ |
| 272 | dprintk(dev, V4L2_DEBUG_ISOC, "lines= %d-%d, " |
| 273 | "field=%d\n", |
| 274 | start_line, last_line, field); |
| 275 | |
| 276 | if ((start_line<6 && last_line>200) && |
| 277 | (last_field != field) ) { |
| 278 | |
| 279 | dev->isoc_ctl.nfields++; |
| 280 | if (dev->isoc_ctl.nfields>=2) { |
| 281 | dev->isoc_ctl.nfields=0; |
| 282 | |
| 283 | /* Announces that a new buffer were filled */ |
| 284 | buffer_filled (dev, dma_q, *buf); |
| 285 | dprintk(dev, V4L2_DEBUG_ISOC, |
| 286 | "new buffer filled\n"); |
| 287 | rc=get_next_buf (dma_q, buf); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | start_line=line; |
| 292 | last_field=field; |
| 293 | } |
| 294 | last_line=line; |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 295 | |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 296 | pktsize = TM6000_URB_MSG_LEN; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 297 | } else { |
| 298 | /* Continue the last copy */ |
| 299 | cmd = dev->isoc_ctl.cmd; |
| 300 | size= dev->isoc_ctl.size; |
| 301 | pos = dev->isoc_ctl.pos; |
| 302 | pktsize = dev->isoc_ctl.pktsize; |
| 303 | } |
| 304 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 305 | cpysize=(endp-(*ptr)>size)?size:endp-(*ptr); |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 306 | |
| 307 | if (cpysize) { |
| 308 | /* handles each different URB message */ |
| 309 | switch(cmd) { |
| 310 | case TM6000_URB_MSG_VIDEO: |
| 311 | /* Fills video buffer */ |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 312 | if (__copy_to_user(&out_p[pos],*ptr,cpysize)!=0) |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 313 | tm6000_err("copy_to_user failed.\n"); |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 314 | |
| 315 | break; |
| 316 | case TM6000_URB_MSG_PTS: |
| 317 | break; |
| 318 | case TM6000_URB_MSG_AUDIO: |
| 319 | /* Need some code to process audio */ |
| 320 | printk ("%ld: cmd=%s, size=%d\n", jiffies, |
| 321 | tm6000_msg_type[cmd],size); |
| 322 | break; |
| 323 | default: |
| 324 | dprintk (dev, V4L2_DEBUG_ISOC, "cmd=%s, size=%d\n", |
| 325 | tm6000_msg_type[cmd],size); |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 326 | } |
| 327 | } |
| 328 | if (cpysize<size) { |
| 329 | /* End of URB packet, but cmd processing is not |
| 330 | * complete. Preserve the state for a next packet |
| 331 | */ |
| 332 | dev->isoc_ctl.pos = pos+cpysize; |
| 333 | dev->isoc_ctl.size= size-cpysize; |
| 334 | dev->isoc_ctl.cmd = cmd; |
| 335 | dev->isoc_ctl.pktsize = pktsize-cpysize; |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 336 | (*ptr)+=cpysize; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 337 | } else { |
| 338 | dev->isoc_ctl.cmd = 0; |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 339 | (*ptr)+=pktsize; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 340 | } |
| 341 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 342 | return rc; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | static int copy_streams(u8 *data, u8 *out_p, unsigned long len, |
| 346 | struct urb *urb, struct tm6000_buffer **buf) |
| 347 | { |
| 348 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 349 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 350 | u8 *ptr=data, *endp=data+len; |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 351 | unsigned long header=0; |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 352 | int rc=0; |
| 353 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 354 | for (ptr=data; ptr<endp;) { |
| 355 | if (!dev->isoc_ctl.cmd) { |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 356 | u8 *p=(u8 *)&dev->isoc_ctl.tmp_buf; |
| 357 | /* FIXME: This seems very complex |
| 358 | * It just recovers up to 3 bytes of the header that |
| 359 | * might be at the previous packet |
| 360 | */ |
| 361 | if (dev->isoc_ctl.tmp_buf_len) { |
| 362 | while (dev->isoc_ctl.tmp_buf_len) { |
| 363 | if ( *(ptr+3-dev->isoc_ctl.tmp_buf_len) == 0x47) { |
| 364 | break; |
| 365 | } |
| 366 | p++; |
| 367 | dev->isoc_ctl.tmp_buf_len--; |
| 368 | } |
| 369 | if (dev->isoc_ctl.tmp_buf_len) { |
| 370 | memcpy (&header,p, |
| 371 | dev->isoc_ctl.tmp_buf_len); |
| 372 | memcpy (((u8 *)header)+ |
| 373 | dev->isoc_ctl.tmp_buf, |
| 374 | ptr, |
| 375 | 4-dev->isoc_ctl.tmp_buf_len); |
| 376 | ptr+=4-dev->isoc_ctl.tmp_buf_len; |
| 377 | goto HEADER; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 378 | } |
| 379 | } |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 380 | /* Seek for sync */ |
| 381 | for (;ptr<endp-3;ptr++) { |
| 382 | if (*(ptr+3)==0x47) |
| 383 | break; |
| 384 | } |
| 385 | |
| 386 | if (ptr+3>=endp) { |
| 387 | dev->isoc_ctl.tmp_buf_len=endp-ptr; |
| 388 | memcpy (&dev->isoc_ctl.tmp_buf,ptr, |
| 389 | dev->isoc_ctl.tmp_buf_len); |
| 390 | dev->isoc_ctl.cmd=0; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 391 | return rc; |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 392 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 393 | |
| 394 | /* Get message header */ |
| 395 | header=*(unsigned long *)ptr; |
| 396 | ptr+=4; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 397 | } |
Mauro Carvalho Chehab | cc6c60d | 2007-09-19 16:24:05 -0300 | [diff] [blame] | 398 | HEADER: |
Mauro Carvalho Chehab | e2c9500 | 2007-09-19 15:39:22 -0300 | [diff] [blame] | 399 | /* Copy or continue last copy */ |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 400 | rc=copy_packet(urb,header,&ptr,endp,out_p,buf); |
| 401 | if (rc<0) { |
| 402 | buf=NULL; |
| 403 | printk(KERN_ERR "tm6000: buffer underrun at %ld\n", |
| 404 | jiffies); |
| 405 | return rc; |
| 406 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 407 | } |
| 408 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 409 | return 0; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 410 | } |
| 411 | /* |
| 412 | * Identify the tm5600/6000 buffer header type and properly handles |
| 413 | */ |
| 414 | static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len, |
| 415 | struct urb *urb, struct tm6000_buffer **buf) |
| 416 | { |
| 417 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 418 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 419 | unsigned int pos=dev->isoc_ctl.pos,cpysize; |
| 420 | int rc=1; |
| 421 | |
| 422 | while (len>0) { |
| 423 | cpysize=min(len,(*buf)->vb.size-pos); |
| 424 | //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos); |
| 425 | bufcpy(*buf,&out_p[pos],ptr,cpysize); |
| 426 | pos+=cpysize; |
| 427 | ptr+=cpysize; |
| 428 | len-=cpysize; |
| 429 | if (pos >= (*buf)->vb.size) { |
| 430 | pos=0; |
| 431 | /* Announces that a new buffer were filled */ |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 432 | buffer_filled (dev, dma_q, *buf); |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 433 | dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n"); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 434 | rc=get_next_buf (dma_q, buf); |
| 435 | if (rc<=0) { |
| 436 | *buf=NULL; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 437 | break; |
| 438 | } |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | dev->isoc_ctl.pos=pos; |
| 443 | return rc; |
| 444 | } |
| 445 | |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 446 | static void inline print_err_status (struct tm6000_core *dev, |
| 447 | int packet, int status) |
| 448 | { |
| 449 | char *errmsg = "Unknown"; |
| 450 | |
| 451 | switch(status) { |
| 452 | case -ENOENT: |
| 453 | errmsg = "unlinked synchronuously"; |
| 454 | break; |
| 455 | case -ECONNRESET: |
| 456 | errmsg = "unlinked asynchronuously"; |
| 457 | break; |
| 458 | case -ENOSR: |
| 459 | errmsg = "Buffer error (overrun)"; |
| 460 | break; |
| 461 | case -EPIPE: |
| 462 | errmsg = "Stalled (device not responding)"; |
| 463 | break; |
| 464 | case -EOVERFLOW: |
| 465 | errmsg = "Babble (bad cable?)"; |
| 466 | break; |
| 467 | case -EPROTO: |
| 468 | errmsg = "Bit-stuff error (bad cable?)"; |
| 469 | break; |
| 470 | case -EILSEQ: |
| 471 | errmsg = "CRC/Timeout (could be anything)"; |
| 472 | break; |
| 473 | case -ETIME: |
| 474 | errmsg = "Device does not respond"; |
| 475 | break; |
| 476 | } |
| 477 | if (packet<0) { |
| 478 | dprintk(dev, V4L2_DEBUG_QUEUE, "URB status %d [%s].\n", |
| 479 | status, errmsg); |
| 480 | } else { |
| 481 | dprintk(dev, V4L2_DEBUG_QUEUE, "URB packet %d, status %d [%s].\n", |
| 482 | packet, status, errmsg); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 487 | /* |
| 488 | * Controls the isoc copy of each urb packet |
| 489 | */ |
| 490 | static inline int tm6000_isoc_copy(struct urb *urb, struct tm6000_buffer **buf) |
| 491 | { |
| 492 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 493 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 494 | void *outp=videobuf_to_vmalloc (&((*buf)->vb)); |
| 495 | int i, len=0, rc=1; |
| 496 | int size=(*buf)->vb.size; |
| 497 | char *p; |
| 498 | unsigned long copied; |
| 499 | |
| 500 | copied=0; |
| 501 | |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 502 | if (urb->status<0) { |
| 503 | print_err_status (dev,-1,urb->status); |
| 504 | return 0; |
| 505 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 506 | |
| 507 | for (i = 0; i < urb->number_of_packets; i++) { |
| 508 | int status = urb->iso_frame_desc[i].status; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 509 | |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 510 | if (status<0) { |
| 511 | print_err_status (dev,i,status); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 512 | continue; |
Mauro Carvalho Chehab | 5f79675 | 2007-08-27 07:55:05 -0300 | [diff] [blame] | 513 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 514 | |
| 515 | len=urb->iso_frame_desc[i].actual_length; |
| 516 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 517 | // if (len>=TM6000_URB_MSG_LEN) { |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 518 | p=urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
| 519 | if (!urb->iso_frame_desc[i].status) { |
| 520 | if (((*buf)->fmt->fourcc)==V4L2_PIX_FMT_TM6000) { |
| 521 | rc=copy_multiplexed(p,outp,len,urb,buf); |
| 522 | if (rc<=0) |
| 523 | return rc; |
| 524 | } else { |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 525 | copy_streams(p,outp,len,urb,buf); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 526 | } |
| 527 | } |
| 528 | copied += len; |
| 529 | if (copied>=size) |
| 530 | break; |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 531 | // } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 532 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 533 | return rc; |
| 534 | } |
| 535 | |
| 536 | /* ------------------------------------------------------------------ |
| 537 | URB control |
| 538 | ------------------------------------------------------------------*/ |
| 539 | |
| 540 | /* |
| 541 | * IRQ callback, called by URB callback |
| 542 | */ |
| 543 | static void tm6000_irq_callback(struct urb *urb) |
| 544 | { |
| 545 | struct tm6000_buffer *buf; |
| 546 | struct tm6000_dmaqueue *dma_q = urb->context; |
| 547 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 548 | int rc,i; |
| 549 | unsigned long flags; |
| 550 | |
| 551 | spin_lock_irqsave(&dev->slock,flags); |
| 552 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 553 | buf=dev->isoc_ctl.buf; |
| 554 | |
| 555 | if (!buf) { |
| 556 | rc=get_next_buf (dma_q, &buf); |
| 557 | if (rc<=0) |
| 558 | goto ret; |
| 559 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 560 | |
| 561 | /* Copy data from URB */ |
| 562 | rc=tm6000_isoc_copy(urb, &buf); |
| 563 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 564 | dev->isoc_ctl.buf=buf; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 565 | ret: |
| 566 | /* Reset urb buffers */ |
| 567 | for (i = 0; i < urb->number_of_packets; i++) { |
| 568 | urb->iso_frame_desc[i].status = 0; |
| 569 | urb->iso_frame_desc[i].actual_length = 0; |
| 570 | } |
| 571 | urb->status = 0; |
| 572 | |
| 573 | if ((urb->status = usb_submit_urb(urb, GFP_ATOMIC))) { |
| 574 | tm6000_err("urb resubmit failed (error=%i)\n", |
| 575 | urb->status); |
| 576 | } |
| 577 | |
| 578 | if (rc>=0) { |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 579 | /* Data filled, reset watchdog */ |
| 580 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 581 | // } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 582 | } |
| 583 | spin_unlock_irqrestore(&dev->slock,flags); |
| 584 | } |
| 585 | |
| 586 | /* |
| 587 | * Stop and Deallocate URBs |
| 588 | */ |
| 589 | static void tm6000_uninit_isoc(struct tm6000_core *dev) |
| 590 | { |
| 591 | struct urb *urb; |
| 592 | int i; |
| 593 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 594 | dev->isoc_ctl.nfields=-1; |
| 595 | dev->isoc_ctl.buf=NULL; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 596 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 597 | urb=dev->isoc_ctl.urb[i]; |
| 598 | if (urb) { |
| 599 | usb_kill_urb(urb); |
| 600 | usb_unlink_urb(urb); |
| 601 | if (dev->isoc_ctl.transfer_buffer[i]) { |
| 602 | usb_buffer_free(dev->udev, |
| 603 | urb->transfer_buffer_length, |
| 604 | dev->isoc_ctl.transfer_buffer[i], |
| 605 | urb->transfer_dma); |
| 606 | } |
| 607 | usb_free_urb(urb); |
| 608 | dev->isoc_ctl.urb[i] = NULL; |
| 609 | } |
| 610 | dev->isoc_ctl.transfer_buffer[i] = NULL; |
| 611 | } |
| 612 | |
| 613 | kfree (dev->isoc_ctl.urb); |
| 614 | kfree (dev->isoc_ctl.transfer_buffer); |
| 615 | dev->isoc_ctl.urb=NULL; |
| 616 | dev->isoc_ctl.transfer_buffer=NULL; |
| 617 | |
| 618 | dev->isoc_ctl.num_bufs=0; |
| 619 | } |
| 620 | |
| 621 | /* |
| 622 | * Stop video thread - FIXME: Can be easily removed |
| 623 | */ |
| 624 | static void tm6000_stop_thread(struct tm6000_dmaqueue *dma_q) |
| 625 | { |
| 626 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 627 | |
| 628 | tm6000_uninit_isoc(dev); |
| 629 | } |
| 630 | |
| 631 | |
| 632 | /* |
| 633 | * Allocate URBs and start IRQ |
| 634 | */ |
| 635 | static int tm6000_prepare_isoc(struct tm6000_core *dev, |
| 636 | int max_packets, int num_bufs) |
| 637 | { |
| 638 | struct tm6000_dmaqueue *dma_q = &dev->vidq; |
| 639 | int i; |
| 640 | int sb_size, pipe; |
| 641 | struct urb *urb; |
| 642 | int j, k; |
| 643 | |
| 644 | /* De-allocates all pending stuff */ |
| 645 | tm6000_uninit_isoc(dev); |
| 646 | |
| 647 | dev->isoc_ctl.num_bufs=num_bufs; |
| 648 | |
| 649 | dev->isoc_ctl.urb=kmalloc(sizeof(void *)*num_bufs, |
| 650 | GFP_KERNEL); |
| 651 | if (!dev->isoc_ctl.urb) { |
| 652 | tm6000_err("cannot alloc memory for usb buffers\n"); |
| 653 | return -ENOMEM; |
| 654 | } |
| 655 | |
| 656 | dev->isoc_ctl.transfer_buffer=kmalloc(sizeof(void *)*num_bufs, |
| 657 | GFP_KERNEL); |
| 658 | if (!dev->isoc_ctl.urb) { |
| 659 | tm6000_err("cannot allocate memory for usbtransfer\n"); |
| 660 | kfree(dev->isoc_ctl.urb); |
| 661 | return -ENOMEM; |
| 662 | } |
| 663 | |
| 664 | dev->isoc_ctl.max_pkt_size=dev->max_isoc_in; |
| 665 | |
| 666 | sb_size = max_packets * dev->isoc_ctl.max_pkt_size; |
| 667 | |
| 668 | |
| 669 | /* allocate urbs and transfer buffers */ |
| 670 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 671 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); |
| 672 | if (!urb) { |
| 673 | tm6000_err("cannot alloc isoc_ctl.urb %i\n", i); |
| 674 | tm6000_uninit_isoc(dev); |
Mauro Carvalho Chehab | c1a1641 | 2007-10-15 15:43:50 -0300 | [diff] [blame^] | 675 | usb_free_urb(urb); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 676 | return -ENOMEM; |
| 677 | } |
| 678 | dev->isoc_ctl.urb[i] = urb; |
| 679 | |
| 680 | dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->udev, |
Mauro Carvalho Chehab | c13dd70 | 2007-09-19 07:36:34 -0300 | [diff] [blame] | 681 | sb_size, GFP_KERNEL, &urb->transfer_dma); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 682 | if (!dev->isoc_ctl.transfer_buffer[i]) { |
| 683 | tm6000_err ("unable to allocate %i bytes for transfer" |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 684 | " buffer %i%s\n", |
| 685 | sb_size, i, |
| 686 | in_interrupt()?" while in int":""); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 687 | tm6000_uninit_isoc(dev); |
| 688 | return -ENOMEM; |
| 689 | } |
| 690 | memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); |
| 691 | |
| 692 | pipe=usb_rcvisocpipe(dev->udev, |
| 693 | dev->isoc_in->desc.bEndpointAddress & |
| 694 | USB_ENDPOINT_NUMBER_MASK); |
| 695 | usb_fill_int_urb(urb, dev->udev, pipe, |
| 696 | dev->isoc_ctl.transfer_buffer[i],sb_size, |
| 697 | tm6000_irq_callback, dma_q, |
| 698 | dev->isoc_in->desc.bInterval); |
| 699 | |
| 700 | urb->number_of_packets = max_packets; |
| 701 | urb->transfer_flags = URB_ISO_ASAP; |
| 702 | |
| 703 | k = 0; |
| 704 | for (j = 0; j < max_packets; j++) { |
| 705 | urb->iso_frame_desc[j].offset = k; |
| 706 | urb->iso_frame_desc[j].length = |
| 707 | dev->isoc_ctl.max_pkt_size; |
| 708 | k += dev->isoc_ctl.max_pkt_size; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | return 0; |
| 713 | } |
| 714 | |
| 715 | static int tm6000_start_thread( struct tm6000_dmaqueue *dma_q, |
| 716 | struct tm6000_buffer *buf) |
| 717 | { |
| 718 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 719 | int i,rc; |
| 720 | |
| 721 | dma_q->frame=0; |
| 722 | dma_q->ini_jiffies=jiffies; |
| 723 | |
| 724 | init_waitqueue_head(&dma_q->wq); |
| 725 | |
| 726 | /* submit urbs and enables IRQ */ |
| 727 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
Michel Ludwig | 2cd4fd1 | 2007-06-17 17:12:32 -0300 | [diff] [blame] | 728 | rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 729 | if (rc) { |
| 730 | tm6000_err("submit of urb %i failed (error=%i)\n", i, |
| 731 | rc); |
| 732 | tm6000_uninit_isoc(dev); |
| 733 | return rc; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | if (rc<0) |
| 738 | return rc; |
| 739 | |
| 740 | return 0; |
| 741 | } |
| 742 | |
| 743 | static int restart_video_queue(struct tm6000_dmaqueue *dma_q) |
| 744 | { |
| 745 | struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq); |
| 746 | |
| 747 | struct tm6000_buffer *buf, *prev; |
| 748 | struct list_head *item; |
| 749 | |
| 750 | dprintk(dev, V4L2_DEBUG_QUEUE, "%s dma_q=0x%08lx\n", |
| 751 | __FUNCTION__,(unsigned long)dma_q); |
| 752 | |
| 753 | if (!list_empty(&dma_q->active)) { |
| 754 | buf = list_entry(dma_q->active.next, struct tm6000_buffer, vb.queue); |
| 755 | dprintk(dev, V4L2_DEBUG_QUEUE, |
| 756 | "restart_queue [%p/%d]: restart dma\n", buf, buf->vb.i); |
| 757 | |
| 758 | dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); |
| 759 | tm6000_stop_thread(dma_q); |
| 760 | tm6000_start_thread(dma_q, buf); |
| 761 | |
| 762 | /* cancel all outstanding capture / vbi requests */ |
| 763 | list_for_each(item,&dma_q->active) { |
| 764 | buf = list_entry(item, struct tm6000_buffer, vb.queue); |
| 765 | |
| 766 | list_del(&buf->vb.queue); |
| 767 | buf->vb.state = STATE_ERROR; |
| 768 | wake_up(&buf->vb.done); |
| 769 | } |
| 770 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 771 | |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | prev = NULL; |
| 776 | for (;;) { |
| 777 | if (list_empty(&dma_q->queued)) |
| 778 | return 0; |
| 779 | buf = list_entry(dma_q->queued.next, struct tm6000_buffer, vb.queue); |
| 780 | if (NULL == prev) { |
| 781 | list_del(&buf->vb.queue); |
| 782 | list_add_tail(&buf->vb.queue,&dma_q->active); |
| 783 | |
| 784 | dprintk(dev, V4L2_DEBUG_QUEUE, "Restarting video dma\n"); |
| 785 | tm6000_stop_thread(dma_q); |
| 786 | tm6000_start_thread(dma_q, buf); |
| 787 | |
| 788 | buf->vb.state = STATE_ACTIVE; |
| 789 | mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT); |
| 790 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" |
| 791 | " first active\n", buf, buf->vb.i); |
| 792 | |
| 793 | } else if (prev->vb.width == buf->vb.width && |
| 794 | prev->vb.height == buf->vb.height && |
| 795 | prev->fmt == buf->fmt) { |
| 796 | list_del(&buf->vb.queue); |
| 797 | list_add_tail(&buf->vb.queue,&dma_q->active); |
| 798 | buf->vb.state = STATE_ACTIVE; |
| 799 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] restart_queue -" |
| 800 | " move to active\n",buf,buf->vb.i); |
| 801 | } else { |
| 802 | return 0; |
| 803 | } |
| 804 | prev = buf; |
| 805 | } |
| 806 | } |
| 807 | |
| 808 | static void tm6000_vid_timeout(unsigned long data) |
| 809 | { |
| 810 | struct tm6000_core *dev = (struct tm6000_core*)data; |
| 811 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 812 | struct tm6000_buffer *buf; |
| 813 | unsigned long flags; |
| 814 | |
| 815 | spin_lock_irqsave(&dev->slock,flags); |
| 816 | while (!list_empty(&vidq->active)) { |
| 817 | buf = list_entry(vidq->active.next, struct tm6000_buffer, |
| 818 | vb.queue); |
| 819 | list_del(&buf->vb.queue); |
| 820 | buf->vb.state = STATE_ERROR; |
| 821 | wake_up(&buf->vb.done); |
| 822 | dprintk(dev, V4L2_DEBUG_QUEUE, "tm6000/0: [%p/%d] timeout\n", |
| 823 | buf, buf->vb.i); |
| 824 | } |
| 825 | |
| 826 | restart_video_queue(vidq); |
| 827 | spin_unlock_irqrestore(&dev->slock,flags); |
| 828 | } |
| 829 | |
| 830 | /* ------------------------------------------------------------------ |
| 831 | Videobuf operations |
| 832 | ------------------------------------------------------------------*/ |
Michel Ludwig | 95a8382 | 2007-07-24 08:06:45 -0300 | [diff] [blame] | 833 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 834 | static int |
| 835 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) |
| 836 | { |
| 837 | struct tm6000_fh *fh = vq->priv_data; |
| 838 | |
| 839 | *size = fh->fmt->depth * fh->width * fh->height >> 3; |
| 840 | if (0 == *count) |
Michel Ludwig | 95a8382 | 2007-07-24 08:06:45 -0300 | [diff] [blame] | 841 | *count = TM6000_DEF_BUF; |
| 842 | |
| 843 | if (*count < TM6000_MIN_BUF) { |
| 844 | *count=TM6000_MIN_BUF; |
| 845 | } |
| 846 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 847 | while (*size * *count > vid_limit * 1024 * 1024) |
| 848 | (*count)--; |
Michel Ludwig | 95a8382 | 2007-07-24 08:06:45 -0300 | [diff] [blame] | 849 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 850 | return 0; |
| 851 | } |
| 852 | |
| 853 | static void free_buffer(struct videobuf_queue *vq, struct tm6000_buffer *buf) |
| 854 | { |
| 855 | if (in_interrupt()) |
| 856 | BUG(); |
| 857 | |
| 858 | videobuf_waiton(&buf->vb,0,0); |
| 859 | videobuf_vmalloc_free(&buf->vb); |
| 860 | buf->vb.state = STATE_NEEDS_INIT; |
| 861 | } |
| 862 | |
| 863 | static int |
| 864 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 865 | enum v4l2_field field) |
| 866 | { |
| 867 | struct tm6000_fh *fh = vq->priv_data; |
| 868 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 869 | struct tm6000_core *dev = fh->dev; |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 870 | int rc=0, urbsize, urb_init=0, npackets=1; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 871 | |
| 872 | BUG_ON(NULL == fh->fmt); |
| 873 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 874 | |
| 875 | /* FIXME: It assumes depth=2 */ |
| 876 | /* The only currently supported format is 16 bits/pixel */ |
| 877 | buf->vb.size = fh->fmt->depth*fh->width*fh->height >> 3; |
| 878 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 879 | return -EINVAL; |
| 880 | |
| 881 | if (buf->fmt != fh->fmt || |
| 882 | buf->vb.width != fh->width || |
| 883 | buf->vb.height != fh->height || |
| 884 | buf->vb.field != field) { |
| 885 | buf->fmt = fh->fmt; |
| 886 | buf->vb.width = fh->width; |
| 887 | buf->vb.height = fh->height; |
| 888 | buf->vb.field = field; |
| 889 | buf->vb.state = STATE_NEEDS_INIT; |
| 890 | } |
| 891 | |
| 892 | if (STATE_NEEDS_INIT == buf->vb.state) { |
| 893 | if (0 != (rc = videobuf_iolock(vq,&buf->vb,NULL))) |
| 894 | goto fail; |
| 895 | urb_init=1; |
| 896 | } |
| 897 | |
| 898 | |
| 899 | if (!dev->isoc_ctl.num_bufs) |
| 900 | urb_init=1; |
| 901 | |
| 902 | if (urb_init) { |
Mauro Carvalho Chehab | c13dd70 | 2007-09-19 07:36:34 -0300 | [diff] [blame] | 903 | /* memory for video |
| 904 | Should be at least |
| 905 | Vres x Vres x 2 bytes/pixel by frame */ |
| 906 | urbsize=buf->vb.size; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 907 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 908 | /* Need also one PTS */ |
| 909 | urbsize+=180; |
| 910 | |
Mauro Carvalho Chehab | c13dd70 | 2007-09-19 07:36:34 -0300 | [diff] [blame] | 911 | /* memory for audio |
| 912 | Should be at least |
| 913 | bitrate * 2 channels * 2 bytes / frame rate */ |
| 914 | if (dev->norm & V4L2_STD_525_60) { |
| 915 | urbsize+=(dev->audio_bitrate*4+29)/30; |
| 916 | } else { |
| 917 | urbsize+=(dev->audio_bitrate*4+24)/25; |
| 918 | } |
| 919 | |
| 920 | /* each audio frame seeems to have a frame number |
| 921 | with 2 bytes */ |
| 922 | urbsize+=2; |
| 923 | |
| 924 | /* Add 4 bytes by each 180 bytes frame */ |
| 925 | urbsize+=((urbsize+179)/180)*4; |
| 926 | |
| 927 | /* Round to an enough number of URBs */ |
| 928 | urbsize=(urbsize+dev->max_isoc_in-1)/dev->max_isoc_in; |
| 929 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 930 | /* Avoids allocating big memory areas for URB */ |
| 931 | while ((urbsize*dev->max_isoc_in)/npackets>65535) { |
| 932 | npackets++; |
| 933 | } |
| 934 | urbsize/=(urbsize+npackets-1)/npackets; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 935 | |
Mauro Carvalho Chehab | a228618 | 2007-09-22 02:06:25 -0300 | [diff] [blame] | 936 | dprintk(dev, V4L2_DEBUG_QUEUE, "Allocating %dx%d packets" |
| 937 | " of %d bytes each to handle %lu size\n", |
| 938 | npackets,urbsize,dev->max_isoc_in,buf->vb.size); |
| 939 | |
| 940 | rc = tm6000_prepare_isoc(dev, urbsize, npackets); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 941 | |
| 942 | if (rc<0) |
| 943 | goto fail; |
| 944 | } |
| 945 | |
| 946 | buf->vb.state = STATE_PREPARED; |
| 947 | return 0; |
| 948 | |
| 949 | fail: |
| 950 | free_buffer(vq,buf); |
| 951 | return rc; |
| 952 | } |
| 953 | |
| 954 | static void |
| 955 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 956 | { |
| 957 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 958 | struct tm6000_fh *fh = vq->priv_data; |
| 959 | struct tm6000_core *dev = fh->dev; |
| 960 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 961 | struct tm6000_buffer *prev; |
| 962 | |
| 963 | if (!list_empty(&vidq->queued)) { |
| 964 | list_add_tail(&buf->vb.queue,&vidq->queued); |
| 965 | buf->vb.state = STATE_QUEUED; |
| 966 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " |
| 967 | "append to queued\n", buf, buf->vb.i); |
| 968 | } else if (list_empty(&vidq->active)) { |
| 969 | list_add_tail(&buf->vb.queue,&vidq->active); |
| 970 | buf->vb.state = STATE_ACTIVE; |
| 971 | mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT); |
| 972 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue - " |
| 973 | "first active\n", buf, buf->vb.i); |
| 974 | tm6000_start_thread(vidq, buf); |
| 975 | } else { |
| 976 | prev = list_entry(vidq->active.prev, struct tm6000_buffer, vb.queue); |
| 977 | if (prev->vb.width == buf->vb.width && |
| 978 | prev->vb.height == buf->vb.height && |
| 979 | prev->fmt == buf->fmt) { |
| 980 | list_add_tail(&buf->vb.queue,&vidq->active); |
| 981 | buf->vb.state = STATE_ACTIVE; |
| 982 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" |
| 983 | " append to active\n", buf, buf->vb.i); |
| 984 | } else { |
| 985 | list_add_tail(&buf->vb.queue,&vidq->queued); |
| 986 | buf->vb.state = STATE_QUEUED; |
| 987 | dprintk(dev, V4L2_DEBUG_QUEUE, "[%p/%d] buffer_queue -" |
| 988 | " first queued\n", buf, buf->vb.i); |
| 989 | } |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 994 | { |
| 995 | struct tm6000_buffer *buf = container_of(vb,struct tm6000_buffer,vb); |
| 996 | struct tm6000_fh *fh = vq->priv_data; |
| 997 | struct tm6000_core *dev = (struct tm6000_core*)fh->dev; |
| 998 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 999 | |
| 1000 | tm6000_stop_thread(vidq); |
| 1001 | |
| 1002 | free_buffer(vq,buf); |
| 1003 | } |
| 1004 | |
| 1005 | static struct videobuf_queue_ops tm6000_video_qops = { |
| 1006 | .buf_setup = buffer_setup, |
| 1007 | .buf_prepare = buffer_prepare, |
| 1008 | .buf_queue = buffer_queue, |
| 1009 | .buf_release = buffer_release, |
| 1010 | }; |
| 1011 | |
| 1012 | /* ------------------------------------------------------------------ |
| 1013 | IOCTL handling |
| 1014 | ------------------------------------------------------------------*/ |
| 1015 | |
| 1016 | static int res_get(struct tm6000_core *dev, struct tm6000_fh *fh) |
| 1017 | { |
| 1018 | /* is it free? */ |
| 1019 | mutex_lock(&dev->lock); |
| 1020 | if (dev->resources) { |
| 1021 | /* no, someone else uses it */ |
| 1022 | mutex_unlock(&dev->lock); |
| 1023 | return 0; |
| 1024 | } |
| 1025 | /* it's free, grab it */ |
| 1026 | dev->resources =1; |
| 1027 | dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: get\n"); |
| 1028 | mutex_unlock(&dev->lock); |
| 1029 | return 1; |
| 1030 | } |
| 1031 | |
| 1032 | static int res_locked(struct tm6000_core *dev) |
| 1033 | { |
| 1034 | return (dev->resources); |
| 1035 | } |
| 1036 | |
| 1037 | static void res_free(struct tm6000_core *dev, struct tm6000_fh *fh) |
| 1038 | { |
| 1039 | mutex_lock(&dev->lock); |
| 1040 | dev->resources = 0; |
| 1041 | dprintk(dev, V4L2_DEBUG_RES_LOCK, "res: put\n"); |
| 1042 | mutex_unlock(&dev->lock); |
| 1043 | } |
| 1044 | |
| 1045 | /* ------------------------------------------------------------------ |
| 1046 | IOCTL vidioc handling |
| 1047 | ------------------------------------------------------------------*/ |
| 1048 | static int vidioc_querycap (struct file *file, void *priv, |
| 1049 | struct v4l2_capability *cap) |
| 1050 | { |
| 1051 | // struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev; |
| 1052 | |
| 1053 | strlcpy(cap->driver, "tm6000", sizeof(cap->driver)); |
| 1054 | strlcpy(cap->card,"Trident TVMaster TM5600/6000", sizeof(cap->card)); |
| 1055 | // strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info)); |
| 1056 | cap->version = TM6000_VERSION; |
| 1057 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 1058 | V4L2_CAP_STREAMING | |
| 1059 | V4L2_CAP_TUNER | |
| 1060 | V4L2_CAP_READWRITE; |
| 1061 | return 0; |
| 1062 | } |
| 1063 | |
| 1064 | static int vidioc_enum_fmt_cap (struct file *file, void *priv, |
| 1065 | struct v4l2_fmtdesc *f) |
| 1066 | { |
| 1067 | if (unlikely(f->index >= ARRAY_SIZE(format))) |
| 1068 | return -EINVAL; |
| 1069 | |
| 1070 | strlcpy(f->description,format[f->index].name,sizeof(f->description)); |
| 1071 | f->pixelformat = format[f->index].fourcc; |
| 1072 | return 0; |
| 1073 | } |
| 1074 | |
| 1075 | static int vidioc_g_fmt_cap (struct file *file, void *priv, |
| 1076 | struct v4l2_format *f) |
| 1077 | { |
| 1078 | struct tm6000_fh *fh=priv; |
| 1079 | |
| 1080 | f->fmt.pix.width = fh->width; |
| 1081 | f->fmt.pix.height = fh->height; |
| 1082 | f->fmt.pix.field = fh->vb_vidq.field; |
| 1083 | f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| 1084 | f->fmt.pix.bytesperline = |
| 1085 | (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| 1086 | f->fmt.pix.sizeimage = |
| 1087 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 1088 | |
| 1089 | return (0); |
| 1090 | } |
| 1091 | |
| 1092 | static struct tm6000_fmt* format_by_fourcc(unsigned int fourcc) |
| 1093 | { |
| 1094 | unsigned int i; |
| 1095 | |
| 1096 | for (i = 0; i < ARRAY_SIZE(format); i++) |
| 1097 | if (format[i].fourcc == fourcc) |
| 1098 | return format+i; |
| 1099 | return NULL; |
| 1100 | } |
| 1101 | |
| 1102 | static int vidioc_try_fmt_cap (struct file *file, void *priv, |
| 1103 | struct v4l2_format *f) |
| 1104 | { |
| 1105 | struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev; |
| 1106 | struct tm6000_fmt *fmt; |
| 1107 | enum v4l2_field field; |
| 1108 | |
| 1109 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| 1110 | if (NULL == fmt) { |
| 1111 | dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Fourcc format (0x%08x)" |
| 1112 | " invalid.\n", f->fmt.pix.pixelformat); |
| 1113 | return -EINVAL; |
| 1114 | } |
| 1115 | |
| 1116 | field = f->fmt.pix.field; |
| 1117 | |
| 1118 | if (field == V4L2_FIELD_ANY) { |
| 1119 | // field=V4L2_FIELD_INTERLACED; |
| 1120 | field=V4L2_FIELD_SEQ_TB; |
| 1121 | } else if (V4L2_FIELD_INTERLACED != field) { |
| 1122 | dprintk(dev, V4L2_DEBUG_IOCTL_ARG, "Field type invalid.\n"); |
| 1123 | return -EINVAL; |
| 1124 | } |
| 1125 | |
Mauro Carvalho Chehab | 4475c04 | 2007-09-03 21:51:45 -0300 | [diff] [blame] | 1126 | tm6000_get_std_res (dev); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1127 | |
Mauro Carvalho Chehab | 4475c04 | 2007-09-03 21:51:45 -0300 | [diff] [blame] | 1128 | f->fmt.pix.width = dev->width; |
| 1129 | f->fmt.pix.height = dev->height; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1130 | |
| 1131 | f->fmt.pix.width &= ~0x01; |
| 1132 | |
| 1133 | f->fmt.pix.field = field; |
| 1134 | |
| 1135 | f->fmt.pix.bytesperline = |
| 1136 | (f->fmt.pix.width * fmt->depth) >> 3; |
| 1137 | f->fmt.pix.sizeimage = |
| 1138 | f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 1139 | |
| 1140 | return 0; |
| 1141 | } |
| 1142 | |
| 1143 | /*FIXME: This seems to be generic enough to be at videodev2 */ |
| 1144 | static int vidioc_s_fmt_cap (struct file *file, void *priv, |
| 1145 | struct v4l2_format *f) |
| 1146 | { |
| 1147 | struct tm6000_fh *fh=priv; |
| 1148 | struct tm6000_core *dev = fh->dev; |
| 1149 | int ret = vidioc_try_fmt_cap(file,fh,f); |
| 1150 | if (ret < 0) |
| 1151 | return (ret); |
| 1152 | |
| 1153 | fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| 1154 | fh->width = f->fmt.pix.width; |
| 1155 | fh->height = f->fmt.pix.height; |
| 1156 | fh->vb_vidq.field = f->fmt.pix.field; |
| 1157 | fh->type = f->type; |
| 1158 | |
| 1159 | dev->fourcc = f->fmt.pix.pixelformat; |
| 1160 | |
| 1161 | tm6000_set_fourcc_format(dev); |
| 1162 | |
| 1163 | return (0); |
| 1164 | } |
| 1165 | |
| 1166 | static int vidioc_reqbufs (struct file *file, void *priv, |
| 1167 | struct v4l2_requestbuffers *p) |
| 1168 | { |
| 1169 | struct tm6000_fh *fh=priv; |
| 1170 | |
| 1171 | return (videobuf_reqbufs(&fh->vb_vidq, p)); |
| 1172 | } |
| 1173 | |
| 1174 | static int vidioc_querybuf (struct file *file, void *priv, |
| 1175 | struct v4l2_buffer *p) |
| 1176 | { |
| 1177 | struct tm6000_fh *fh=priv; |
| 1178 | |
| 1179 | return (videobuf_querybuf(&fh->vb_vidq, p)); |
| 1180 | } |
| 1181 | |
| 1182 | static int vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *p) |
| 1183 | { |
| 1184 | struct tm6000_fh *fh=priv; |
| 1185 | |
| 1186 | return (videobuf_qbuf(&fh->vb_vidq, p)); |
| 1187 | } |
| 1188 | |
| 1189 | static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p) |
| 1190 | { |
| 1191 | struct tm6000_fh *fh=priv; |
| 1192 | |
| 1193 | return (videobuf_dqbuf(&fh->vb_vidq, p, |
| 1194 | file->f_flags & O_NONBLOCK)); |
| 1195 | } |
| 1196 | |
| 1197 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1198 | static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf) |
| 1199 | { |
| 1200 | struct tm6000_fh *fh=priv; |
| 1201 | |
| 1202 | return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8); |
| 1203 | } |
| 1204 | #endif |
| 1205 | |
| 1206 | static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i) |
| 1207 | { |
| 1208 | struct tm6000_fh *fh=priv; |
| 1209 | struct tm6000_core *dev = fh->dev; |
| 1210 | |
| 1211 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1212 | return -EINVAL; |
| 1213 | if (i != fh->type) |
| 1214 | return -EINVAL; |
| 1215 | |
| 1216 | if (!res_get(dev,fh)) |
| 1217 | return -EBUSY; |
| 1218 | return (videobuf_streamon(&fh->vb_vidq)); |
| 1219 | } |
| 1220 | |
| 1221 | static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) |
| 1222 | { |
| 1223 | struct tm6000_fh *fh=priv; |
| 1224 | struct tm6000_core *dev = fh->dev; |
| 1225 | |
| 1226 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1227 | return -EINVAL; |
| 1228 | if (i != fh->type) |
| 1229 | return -EINVAL; |
| 1230 | |
| 1231 | videobuf_streamoff(&fh->vb_vidq); |
| 1232 | res_free(dev,fh); |
| 1233 | |
| 1234 | return (0); |
| 1235 | } |
| 1236 | |
| 1237 | static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *norm) |
| 1238 | { |
| 1239 | int rc=0; |
| 1240 | struct tm6000_fh *fh=priv; |
| 1241 | struct tm6000_core *dev = fh->dev; |
| 1242 | |
| 1243 | rc=tm6000_set_standard (dev, norm); |
Mauro Carvalho Chehab | 71e7cfa | 2007-09-06 20:12:10 -0300 | [diff] [blame] | 1244 | |
| 1245 | fh->width = dev->width; |
| 1246 | fh->height = dev->height; |
| 1247 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1248 | if (rc<0) |
| 1249 | return rc; |
| 1250 | |
| 1251 | tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm); |
| 1252 | |
| 1253 | return 0; |
| 1254 | } |
| 1255 | |
| 1256 | static int vidioc_enum_input (struct file *file, void *priv, |
| 1257 | struct v4l2_input *inp) |
| 1258 | { |
| 1259 | switch (inp->index) { |
| 1260 | case TM6000_INPUT_TV: |
| 1261 | inp->type = V4L2_INPUT_TYPE_TUNER; |
| 1262 | strcpy(inp->name,"Television"); |
| 1263 | break; |
| 1264 | case TM6000_INPUT_COMPOSITE: |
| 1265 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
| 1266 | strcpy(inp->name,"Composite"); |
| 1267 | break; |
| 1268 | case TM6000_INPUT_SVIDEO: |
| 1269 | inp->type = V4L2_INPUT_TYPE_CAMERA; |
| 1270 | strcpy(inp->name,"S-Video"); |
| 1271 | break; |
| 1272 | default: |
| 1273 | return -EINVAL; |
| 1274 | } |
| 1275 | inp->std = TM6000_STD; |
| 1276 | |
| 1277 | return 0; |
| 1278 | } |
| 1279 | |
| 1280 | static int vidioc_g_input (struct file *file, void *priv, unsigned int *i) |
| 1281 | { |
| 1282 | struct tm6000_fh *fh=priv; |
| 1283 | struct tm6000_core *dev = fh->dev; |
| 1284 | |
| 1285 | *i=dev->input; |
| 1286 | |
| 1287 | return 0; |
| 1288 | } |
| 1289 | static int vidioc_s_input (struct file *file, void *priv, unsigned int i) |
| 1290 | { |
| 1291 | struct tm6000_fh *fh=priv; |
| 1292 | struct tm6000_core *dev = fh->dev; |
| 1293 | int rc=0; |
| 1294 | char buf[1]; |
| 1295 | |
| 1296 | switch (i) { |
| 1297 | case TM6000_INPUT_TV: |
| 1298 | dev->input=i; |
| 1299 | *buf=0; |
| 1300 | break; |
| 1301 | case TM6000_INPUT_COMPOSITE: |
| 1302 | case TM6000_INPUT_SVIDEO: |
| 1303 | dev->input=i; |
| 1304 | *buf=1; |
| 1305 | break; |
| 1306 | default: |
| 1307 | return -EINVAL; |
| 1308 | } |
| 1309 | rc=tm6000_read_write_usb (dev, USB_DIR_OUT | USB_TYPE_VENDOR, |
| 1310 | REQ_03_SET_GET_MCU_PIN, 0x03, 1, buf, 1); |
| 1311 | |
| 1312 | if (!rc) { |
| 1313 | dev->input=i; |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1314 | rc=vidioc_s_std (file, priv, &dev->vfd->current_norm); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1315 | } |
| 1316 | |
| 1317 | return (rc); |
| 1318 | } |
| 1319 | |
| 1320 | /* --- controls ---------------------------------------------- */ |
| 1321 | static int vidioc_queryctrl (struct file *file, void *priv, |
| 1322 | struct v4l2_queryctrl *qc) |
| 1323 | { |
| 1324 | int i; |
| 1325 | |
| 1326 | for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++) |
| 1327 | if (qc->id && qc->id == tm6000_qctrl[i].id) { |
| 1328 | memcpy(qc, &(tm6000_qctrl[i]), |
| 1329 | sizeof(*qc)); |
| 1330 | return (0); |
| 1331 | } |
| 1332 | |
| 1333 | return -EINVAL; |
| 1334 | } |
| 1335 | |
| 1336 | static int vidioc_g_ctrl (struct file *file, void *priv, |
| 1337 | struct v4l2_control *ctrl) |
| 1338 | { |
| 1339 | struct tm6000_fh *fh=priv; |
| 1340 | struct tm6000_core *dev = fh->dev; |
| 1341 | int val; |
| 1342 | |
| 1343 | /* FIXME: Probably, those won't work! Maybe we need shadow regs */ |
| 1344 | switch (ctrl->id) { |
| 1345 | case V4L2_CID_CONTRAST: |
| 1346 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x08, 0); |
| 1347 | break; |
| 1348 | case V4L2_CID_BRIGHTNESS: |
| 1349 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x09, 0); |
| 1350 | return 0; |
| 1351 | case V4L2_CID_SATURATION: |
| 1352 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, 0); |
| 1353 | return 0; |
| 1354 | case V4L2_CID_HUE: |
| 1355 | val=tm6000_get_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, 0); |
| 1356 | return 0; |
| 1357 | default: |
| 1358 | return -EINVAL; |
| 1359 | } |
| 1360 | |
| 1361 | if (val<0) |
| 1362 | return val; |
| 1363 | |
| 1364 | ctrl->value=val; |
| 1365 | |
| 1366 | return 0; |
| 1367 | } |
| 1368 | static int vidioc_s_ctrl (struct file *file, void *priv, |
| 1369 | struct v4l2_control *ctrl) |
| 1370 | { |
| 1371 | struct tm6000_fh *fh =priv; |
| 1372 | struct tm6000_core *dev = fh->dev; |
| 1373 | u8 val=ctrl->value; |
| 1374 | |
| 1375 | switch (ctrl->id) { |
| 1376 | case V4L2_CID_CONTRAST: |
| 1377 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x08, val); |
| 1378 | return 0; |
| 1379 | case V4L2_CID_BRIGHTNESS: |
| 1380 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x09, val); |
| 1381 | return 0; |
| 1382 | case V4L2_CID_SATURATION: |
| 1383 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0a, val); |
| 1384 | return 0; |
| 1385 | case V4L2_CID_HUE: |
| 1386 | tm6000_set_reg (dev, REQ_07_SET_GET_AVREG, 0x0b, val); |
| 1387 | return 0; |
| 1388 | } |
| 1389 | return -EINVAL; |
| 1390 | } |
| 1391 | |
| 1392 | static int vidioc_g_tuner (struct file *file, void *priv, |
| 1393 | struct v4l2_tuner *t) |
| 1394 | { |
| 1395 | struct tm6000_fh *fh =priv; |
| 1396 | struct tm6000_core *dev = fh->dev; |
| 1397 | |
| 1398 | if (unlikely(UNSET == dev->tuner_type)) |
| 1399 | return -EINVAL; |
| 1400 | if (0 != t->index) |
| 1401 | return -EINVAL; |
| 1402 | |
| 1403 | strcpy(t->name, "Television"); |
| 1404 | t->type = V4L2_TUNER_ANALOG_TV; |
| 1405 | t->capability = V4L2_TUNER_CAP_NORM; |
| 1406 | t->rangehigh = 0xffffffffUL; |
| 1407 | t->rxsubchans = V4L2_TUNER_SUB_MONO; |
| 1408 | |
| 1409 | return 0; |
| 1410 | } |
| 1411 | |
| 1412 | static int vidioc_s_tuner (struct file *file, void *priv, |
| 1413 | struct v4l2_tuner *t) |
| 1414 | { |
| 1415 | struct tm6000_fh *fh =priv; |
| 1416 | struct tm6000_core *dev = fh->dev; |
| 1417 | |
| 1418 | if (UNSET == dev->tuner_type) |
| 1419 | return -EINVAL; |
| 1420 | if (0 != t->index) |
| 1421 | return -EINVAL; |
| 1422 | |
| 1423 | return 0; |
| 1424 | } |
| 1425 | |
| 1426 | static int vidioc_g_frequency (struct file *file, void *priv, |
| 1427 | struct v4l2_frequency *f) |
| 1428 | { |
| 1429 | struct tm6000_fh *fh =priv; |
| 1430 | struct tm6000_core *dev = fh->dev; |
| 1431 | |
| 1432 | if (unlikely(UNSET == dev->tuner_type)) |
| 1433 | return -EINVAL; |
| 1434 | |
| 1435 | f->type = V4L2_TUNER_ANALOG_TV; |
| 1436 | f->frequency = dev->freq; |
| 1437 | |
| 1438 | tm6000_i2c_call_clients(dev,VIDIOC_G_FREQUENCY,f); |
| 1439 | |
| 1440 | return 0; |
| 1441 | } |
| 1442 | |
| 1443 | static int vidioc_s_frequency (struct file *file, void *priv, |
| 1444 | struct v4l2_frequency *f) |
| 1445 | { |
| 1446 | struct tm6000_fh *fh =priv; |
| 1447 | struct tm6000_core *dev = fh->dev; |
| 1448 | |
| 1449 | if (unlikely(f->type != V4L2_TUNER_ANALOG_TV)) |
| 1450 | return -EINVAL; |
| 1451 | |
| 1452 | if (unlikely(UNSET == dev->tuner_type)) |
| 1453 | return -EINVAL; |
| 1454 | if (unlikely(f->tuner != 0)) |
| 1455 | return -EINVAL; |
| 1456 | |
| 1457 | // mutex_lock(&dev->lock); |
| 1458 | dev->freq = f->frequency; |
| 1459 | tm6000_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f); |
| 1460 | // mutex_unlock(&dev->lock); |
| 1461 | |
| 1462 | return 0; |
| 1463 | } |
| 1464 | |
| 1465 | /* ------------------------------------------------------------------ |
| 1466 | File operations for the device |
| 1467 | ------------------------------------------------------------------*/ |
| 1468 | |
| 1469 | static int tm6000_open(struct inode *inode, struct file *file) |
| 1470 | { |
| 1471 | int minor = iminor(inode); |
| 1472 | struct tm6000_core *h,*dev = NULL; |
| 1473 | struct tm6000_fh *fh; |
| 1474 | struct list_head *list; |
| 1475 | enum v4l2_buf_type type = 0; |
| 1476 | int i,rc; |
| 1477 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1478 | printk(KERN_INFO "tm6000: open called (minor=%d)\n",minor); |
| 1479 | |
| 1480 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1481 | dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: open called " |
| 1482 | "(minor=%d)\n",minor); |
| 1483 | |
| 1484 | list_for_each(list,&tm6000_corelist) { |
| 1485 | h = list_entry(list, struct tm6000_core, tm6000_corelist); |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1486 | if (h->vfd->minor == minor) { |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1487 | dev = h; |
| 1488 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1489 | } |
| 1490 | } |
| 1491 | if (NULL == dev) |
| 1492 | return -ENODEV; |
| 1493 | |
| 1494 | |
| 1495 | /* If more than one user, mutex should be added */ |
| 1496 | dev->users++; |
| 1497 | |
| 1498 | dprintk(dev, V4L2_DEBUG_OPEN, "open minor=%d type=%s users=%d\n", |
| 1499 | minor,v4l2_type_names[type],dev->users); |
| 1500 | |
| 1501 | /* allocate + initialize per filehandle data */ |
| 1502 | fh = kzalloc(sizeof(*fh),GFP_KERNEL); |
| 1503 | if (NULL == fh) { |
| 1504 | dev->users--; |
| 1505 | return -ENOMEM; |
| 1506 | } |
| 1507 | |
| 1508 | file->private_data = fh; |
| 1509 | fh->dev = dev; |
| 1510 | |
| 1511 | fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1512 | dev->fourcc = format[0].fourcc; |
| 1513 | |
| 1514 | fh->fmt = format_by_fourcc(dev->fourcc); |
Mauro Carvalho Chehab | 4475c04 | 2007-09-03 21:51:45 -0300 | [diff] [blame] | 1515 | |
| 1516 | tm6000_get_std_res (dev); |
| 1517 | |
| 1518 | fh->width = dev->width; |
| 1519 | fh->height = dev->height; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1520 | |
| 1521 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: fh=0x%08lx, dev=0x%08lx, " |
| 1522 | "dev->vidq=0x%08lx\n", |
| 1523 | (unsigned long)fh,(unsigned long)dev,(unsigned long)&dev->vidq); |
| 1524 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty " |
| 1525 | "queued=%d\n",list_empty(&dev->vidq.queued)); |
| 1526 | dprintk(dev, V4L2_DEBUG_OPEN, "Open: list_empty " |
| 1527 | "active=%d\n",list_empty(&dev->vidq.active)); |
| 1528 | |
| 1529 | /* initialize hardware on analog mode */ |
| 1530 | if (dev->mode!=TM6000_MODE_ANALOG) { |
| 1531 | rc=tm6000_init_analog_mode (dev); |
| 1532 | if (rc<0) |
| 1533 | return rc; |
| 1534 | |
| 1535 | /* Put all controls at a sane state */ |
| 1536 | for (i = 0; i < ARRAY_SIZE(tm6000_qctrl); i++) |
| 1537 | qctl_regs[i] =tm6000_qctrl[i].default_value; |
| 1538 | |
| 1539 | dev->mode=TM6000_MODE_ANALOG; |
| 1540 | } |
| 1541 | |
| 1542 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &tm6000_video_qops, |
| 1543 | NULL, &dev->slock, |
| 1544 | fh->type, |
| 1545 | V4L2_FIELD_INTERLACED, |
| 1546 | sizeof(struct tm6000_buffer),fh); |
| 1547 | |
| 1548 | return 0; |
| 1549 | } |
| 1550 | |
| 1551 | static ssize_t |
| 1552 | tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos) |
| 1553 | { |
| 1554 | struct tm6000_fh *fh = file->private_data; |
| 1555 | |
| 1556 | if (fh->type==V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1557 | if (res_locked(fh->dev)) |
| 1558 | return -EBUSY; |
| 1559 | |
| 1560 | return videobuf_read_stream(&fh->vb_vidq, data, count, pos, 0, |
| 1561 | file->f_flags & O_NONBLOCK); |
| 1562 | } |
| 1563 | return 0; |
| 1564 | } |
| 1565 | |
| 1566 | static unsigned int |
| 1567 | tm6000_poll(struct file *file, struct poll_table_struct *wait) |
| 1568 | { |
| 1569 | struct tm6000_fh *fh = file->private_data; |
| 1570 | struct tm6000_buffer *buf; |
| 1571 | |
| 1572 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 1573 | return POLLERR; |
| 1574 | |
| 1575 | if (res_get(fh->dev,fh)) { |
| 1576 | /* streaming capture */ |
| 1577 | if (list_empty(&fh->vb_vidq.stream)) |
| 1578 | return POLLERR; |
| 1579 | buf = list_entry(fh->vb_vidq.stream.next,struct tm6000_buffer,vb.stream); |
| 1580 | } else { |
| 1581 | /* read() capture */ |
Mauro Carvalho Chehab | dc6a02a | 2007-08-27 07:55:38 -0300 | [diff] [blame] | 1582 | return videobuf_poll_stream(file, &fh->vb_vidq, |
| 1583 | wait); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1584 | } |
| 1585 | poll_wait(file, &buf->vb.done, wait); |
| 1586 | if (buf->vb.state == STATE_DONE || |
| 1587 | buf->vb.state == STATE_ERROR) |
| 1588 | return POLLIN|POLLRDNORM; |
| 1589 | return 0; |
| 1590 | } |
| 1591 | |
| 1592 | static int tm6000_release(struct inode *inode, struct file *file) |
| 1593 | { |
| 1594 | struct tm6000_fh *fh = file->private_data; |
| 1595 | struct tm6000_core *dev = fh->dev; |
| 1596 | struct tm6000_dmaqueue *vidq = &dev->vidq; |
| 1597 | int minor = iminor(inode); |
| 1598 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1599 | dprintk(dev, V4L2_DEBUG_OPEN, "tm6000: close called (minor=%d, users=%d)\n",minor,dev->users); |
| 1600 | |
Mauro Carvalho Chehab | a58d35c | 2007-06-17 17:14:12 -0300 | [diff] [blame] | 1601 | dev->users--; |
| 1602 | |
| 1603 | if (!dev->users) { |
| 1604 | tm6000_stop_thread(vidq); |
| 1605 | videobuf_mmap_free(&fh->vb_vidq); |
| 1606 | } |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1607 | |
| 1608 | kfree (fh); |
| 1609 | |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1610 | return 0; |
| 1611 | } |
| 1612 | |
| 1613 | static int tm6000_mmap(struct file *file, struct vm_area_struct * vma) |
| 1614 | { |
| 1615 | struct tm6000_fh *fh = file->private_data; |
| 1616 | int ret; |
| 1617 | |
| 1618 | ret=videobuf_mmap_mapper(&fh->vb_vidq, vma); |
| 1619 | |
| 1620 | return ret; |
| 1621 | } |
| 1622 | |
| 1623 | static struct file_operations tm6000_fops = { |
| 1624 | .owner = THIS_MODULE, |
| 1625 | .open = tm6000_open, |
| 1626 | .release = tm6000_release, |
| 1627 | .ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
| 1628 | .read = tm6000_read, |
| 1629 | .poll = tm6000_poll, |
| 1630 | .mmap = tm6000_mmap, |
| 1631 | .llseek = no_llseek, |
| 1632 | }; |
| 1633 | |
| 1634 | static struct video_device tm6000_template = { |
| 1635 | .name = "tm6000", |
| 1636 | .type = VID_TYPE_CAPTURE, |
| 1637 | .fops = &tm6000_fops, |
| 1638 | .minor = -1, |
| 1639 | .release = video_device_release, |
| 1640 | |
| 1641 | .vidioc_querycap = vidioc_querycap, |
| 1642 | .vidioc_enum_fmt_cap = vidioc_enum_fmt_cap, |
| 1643 | .vidioc_g_fmt_cap = vidioc_g_fmt_cap, |
| 1644 | .vidioc_try_fmt_cap = vidioc_try_fmt_cap, |
| 1645 | .vidioc_s_fmt_cap = vidioc_s_fmt_cap, |
| 1646 | .vidioc_s_std = vidioc_s_std, |
| 1647 | .vidioc_enum_input = vidioc_enum_input, |
| 1648 | .vidioc_g_input = vidioc_g_input, |
| 1649 | .vidioc_s_input = vidioc_s_input, |
| 1650 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1651 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1652 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1653 | .vidioc_g_tuner = vidioc_g_tuner, |
| 1654 | .vidioc_s_tuner = vidioc_s_tuner, |
| 1655 | .vidioc_g_frequency = vidioc_g_frequency, |
| 1656 | .vidioc_s_frequency = vidioc_s_frequency, |
| 1657 | .vidioc_streamon = vidioc_streamon, |
| 1658 | .vidioc_streamoff = vidioc_streamoff, |
| 1659 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1660 | .vidioc_querybuf = vidioc_querybuf, |
| 1661 | .vidioc_qbuf = vidioc_qbuf, |
| 1662 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1663 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1664 | .vidiocgmbuf = vidiocgmbuf, |
| 1665 | #endif |
| 1666 | .tvnorms = TM6000_STD, |
| 1667 | .current_norm = V4L2_STD_NTSC_M, |
| 1668 | }; |
| 1669 | /* ----------------------------------------------------------------- |
| 1670 | Initialization and module stuff |
| 1671 | ------------------------------------------------------------------*/ |
| 1672 | |
| 1673 | int tm6000_v4l2_register(struct tm6000_core *dev) |
| 1674 | { |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1675 | int ret = -1; |
| 1676 | struct video_device *vfd; |
| 1677 | |
| 1678 | vfd = video_device_alloc(); |
| 1679 | if(!vfd) { |
| 1680 | return -ENOMEM; |
| 1681 | } |
| 1682 | dev->vfd = vfd; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1683 | |
| 1684 | list_add_tail(&dev->tm6000_corelist,&tm6000_corelist); |
| 1685 | |
| 1686 | /* init video dma queues */ |
| 1687 | INIT_LIST_HEAD(&dev->vidq.active); |
| 1688 | INIT_LIST_HEAD(&dev->vidq.queued); |
| 1689 | |
| 1690 | dev->vidq.timeout.function = tm6000_vid_timeout; |
| 1691 | dev->vidq.timeout.data = (unsigned long)dev; |
| 1692 | init_timer(&dev->vidq.timeout); |
| 1693 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1694 | memcpy (dev->vfd, &tm6000_template, sizeof(*(dev->vfd))); |
| 1695 | dev->vfd->debug=tm6000_debug; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1696 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1697 | ret = video_register_device(dev->vfd, VFL_TYPE_GRABBER, video_nr); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1698 | printk(KERN_INFO "Trident TVMaster TM5600/TM6000 USB2 board (Load status: %d)\n", ret); |
| 1699 | return ret; |
| 1700 | } |
| 1701 | |
| 1702 | int tm6000_v4l2_unregister(struct tm6000_core *dev) |
| 1703 | { |
| 1704 | struct tm6000_core *h; |
Michel Ludwig | 22927e8 | 2007-06-14 17:19:59 -0300 | [diff] [blame] | 1705 | struct list_head *pos, *tmp; |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1706 | |
Michel Ludwig | 7c3f53e | 2007-06-16 23:21:48 -0300 | [diff] [blame] | 1707 | video_unregister_device(dev->vfd); |
Michel Ludwig | 22927e8 | 2007-06-14 17:19:59 -0300 | [diff] [blame] | 1708 | |
| 1709 | list_for_each_safe(pos, tmp, &tm6000_corelist) { |
| 1710 | h = list_entry(pos, struct tm6000_core, tm6000_corelist); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1711 | if (h == dev) { |
Michel Ludwig | 8c9d26f | 2007-06-15 11:02:56 -0300 | [diff] [blame] | 1712 | list_del(pos); |
Mauro Carvalho Chehab | 9701dc9 | 2009-09-14 09:42:41 -0300 | [diff] [blame] | 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | return 0; |
| 1717 | } |
| 1718 | |
| 1719 | int tm6000_v4l2_exit(void) |
| 1720 | { |
| 1721 | return 0; |
| 1722 | } |
| 1723 | |
| 1724 | module_param(video_nr, int, 0); |
| 1725 | MODULE_PARM_DESC(video_nr,"Allow changing video device number"); |
| 1726 | |
| 1727 | module_param_named (debug, tm6000_debug, int, 0444); |
| 1728 | MODULE_PARM_DESC(debug,"activates debug info"); |
| 1729 | |
| 1730 | module_param(vid_limit,int,0644); |
| 1731 | MODULE_PARM_DESC(vid_limit,"capture memory limit in megabytes"); |
| 1732 | |