Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Auvitek AU0828 USB Bridge (Analog video support) |
| 3 | * |
| 4 | * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> |
| 5 | * Copyright (C) 2005-2008 Auvitek International, Ltd. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * As published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 20 | * 02110-1301, USA. |
| 21 | */ |
| 22 | |
| 23 | /* Developer Notes: |
| 24 | * |
| 25 | * VBI support is not yet working |
| 26 | * The hardware scaler supported is unimplemented |
| 27 | * AC97 audio support is unimplemented (only i2s audio mode) |
| 28 | * |
| 29 | */ |
| 30 | |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/device.h> |
| 34 | #include <linux/suspend.h> |
| 35 | #include <linux/version.h> |
| 36 | #include <linux/videodev.h> |
| 37 | #include <media/v4l2-common.h> |
| 38 | #include <media/v4l2-ioctl.h> |
| 39 | #include <media/v4l2-chip-ident.h> |
| 40 | #include <media/tuner.h> |
| 41 | #include "au0828.h" |
| 42 | #include "au0828-reg.h" |
| 43 | |
| 44 | static LIST_HEAD(au0828_devlist); |
| 45 | static DEFINE_MUTEX(au0828_sysfs_lock); |
| 46 | |
| 47 | #define AU0828_VERSION_CODE KERNEL_VERSION(0, 0, 1) |
| 48 | |
| 49 | /* Forward declarations */ |
| 50 | void au0828_analog_stream_reset(struct au0828_dev *dev); |
| 51 | |
| 52 | /* ------------------------------------------------------------------ |
| 53 | Videobuf operations |
| 54 | ------------------------------------------------------------------*/ |
| 55 | |
| 56 | static unsigned int isoc_debug; |
| 57 | module_param(isoc_debug, int, 0644); |
| 58 | MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); |
| 59 | |
| 60 | #define au0828_isocdbg(fmt, arg...) \ |
| 61 | do {\ |
| 62 | if (isoc_debug) { \ |
| 63 | printk(KERN_INFO "au0828 %s :"fmt, \ |
| 64 | __func__ , ##arg); \ |
| 65 | } \ |
| 66 | } while (0) |
| 67 | |
| 68 | static inline void print_err_status(struct au0828_dev *dev, |
| 69 | int packet, int status) |
| 70 | { |
| 71 | char *errmsg = "Unknown"; |
| 72 | |
| 73 | switch (status) { |
| 74 | case -ENOENT: |
| 75 | errmsg = "unlinked synchronuously"; |
| 76 | break; |
| 77 | case -ECONNRESET: |
| 78 | errmsg = "unlinked asynchronuously"; |
| 79 | break; |
| 80 | case -ENOSR: |
| 81 | errmsg = "Buffer error (overrun)"; |
| 82 | break; |
| 83 | case -EPIPE: |
| 84 | errmsg = "Stalled (device not responding)"; |
| 85 | break; |
| 86 | case -EOVERFLOW: |
| 87 | errmsg = "Babble (bad cable?)"; |
| 88 | break; |
| 89 | case -EPROTO: |
| 90 | errmsg = "Bit-stuff error (bad cable?)"; |
| 91 | break; |
| 92 | case -EILSEQ: |
| 93 | errmsg = "CRC/Timeout (could be anything)"; |
| 94 | break; |
| 95 | case -ETIME: |
| 96 | errmsg = "Device does not respond"; |
| 97 | break; |
| 98 | } |
| 99 | if (packet < 0) { |
| 100 | au0828_isocdbg("URB status %d [%s].\n", status, errmsg); |
| 101 | } else { |
| 102 | au0828_isocdbg("URB packet %d, status %d [%s].\n", |
| 103 | packet, status, errmsg); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | static int check_dev(struct au0828_dev *dev) |
| 108 | { |
| 109 | if (dev->dev_state & DEV_DISCONNECTED) { |
| 110 | printk("v4l2 ioctl: device not present\n"); |
| 111 | return -ENODEV; |
| 112 | } |
| 113 | |
| 114 | if (dev->dev_state & DEV_MISCONFIGURED) { |
| 115 | printk("v4l2 ioctl: device is misconfigured; " |
| 116 | "close and open it again\n"); |
| 117 | return -EIO; |
| 118 | } |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | /* |
| 123 | * IRQ callback, called by URB callback |
| 124 | */ |
| 125 | static void au0828_irq_callback(struct urb *urb) |
| 126 | { |
| 127 | struct au0828_dmaqueue *dma_q = urb->context; |
| 128 | struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); |
| 129 | int rc, i; |
| 130 | |
| 131 | switch (urb->status) { |
| 132 | case 0: /* success */ |
| 133 | case -ETIMEDOUT: /* NAK */ |
| 134 | break; |
| 135 | case -ECONNRESET: /* kill */ |
| 136 | case -ENOENT: |
| 137 | case -ESHUTDOWN: |
| 138 | au0828_isocdbg("au0828_irq_callback called: status kill\n"); |
| 139 | return; |
| 140 | default: /* unknown error */ |
| 141 | au0828_isocdbg("urb completition error %d.\n", urb->status); |
| 142 | break; |
| 143 | } |
| 144 | |
| 145 | /* Copy data from URB */ |
| 146 | spin_lock(&dev->slock); |
| 147 | rc = dev->isoc_ctl.isoc_copy(dev, urb); |
| 148 | spin_unlock(&dev->slock); |
| 149 | |
| 150 | /* Reset urb buffers */ |
| 151 | for (i = 0; i < urb->number_of_packets; i++) { |
| 152 | urb->iso_frame_desc[i].status = 0; |
| 153 | urb->iso_frame_desc[i].actual_length = 0; |
| 154 | } |
| 155 | urb->status = 0; |
| 156 | |
| 157 | urb->status = usb_submit_urb(urb, GFP_ATOMIC); |
| 158 | if (urb->status) { |
| 159 | au0828_isocdbg("urb resubmit failed (error=%i)\n", |
| 160 | urb->status); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /* |
| 165 | * Stop and Deallocate URBs |
| 166 | */ |
| 167 | void au0828_uninit_isoc(struct au0828_dev *dev) |
| 168 | { |
| 169 | struct urb *urb; |
| 170 | int i; |
| 171 | |
| 172 | au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); |
| 173 | |
| 174 | dev->isoc_ctl.nfields = -1; |
| 175 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 176 | urb = dev->isoc_ctl.urb[i]; |
| 177 | if (urb) { |
| 178 | if (!irqs_disabled()) |
| 179 | usb_kill_urb(urb); |
| 180 | else |
| 181 | usb_unlink_urb(urb); |
| 182 | |
| 183 | if (dev->isoc_ctl.transfer_buffer[i]) { |
| 184 | usb_buffer_free(dev->usbdev, |
| 185 | urb->transfer_buffer_length, |
| 186 | dev->isoc_ctl.transfer_buffer[i], |
| 187 | urb->transfer_dma); |
| 188 | } |
| 189 | usb_free_urb(urb); |
| 190 | dev->isoc_ctl.urb[i] = NULL; |
| 191 | } |
| 192 | dev->isoc_ctl.transfer_buffer[i] = NULL; |
| 193 | } |
| 194 | |
| 195 | kfree(dev->isoc_ctl.urb); |
| 196 | kfree(dev->isoc_ctl.transfer_buffer); |
| 197 | |
| 198 | dev->isoc_ctl.urb = NULL; |
| 199 | dev->isoc_ctl.transfer_buffer = NULL; |
| 200 | dev->isoc_ctl.num_bufs = 0; |
| 201 | } |
| 202 | |
| 203 | /* |
| 204 | * Allocate URBs and start IRQ |
| 205 | */ |
| 206 | int au0828_init_isoc(struct au0828_dev *dev, int max_packets, |
| 207 | int num_bufs, int max_pkt_size, |
| 208 | int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) |
| 209 | { |
| 210 | struct au0828_dmaqueue *dma_q = &dev->vidq; |
| 211 | int i; |
| 212 | int sb_size, pipe; |
| 213 | struct urb *urb; |
| 214 | int j, k; |
| 215 | int rc; |
| 216 | |
| 217 | au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); |
| 218 | |
| 219 | /* De-allocates all pending stuff */ |
| 220 | au0828_uninit_isoc(dev); |
| 221 | |
| 222 | dev->isoc_ctl.isoc_copy = isoc_copy; |
| 223 | dev->isoc_ctl.num_bufs = num_bufs; |
| 224 | |
| 225 | dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); |
| 226 | if (!dev->isoc_ctl.urb) { |
| 227 | au0828_isocdbg("cannot alloc memory for usb buffers\n"); |
| 228 | return -ENOMEM; |
| 229 | } |
| 230 | |
| 231 | dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, |
| 232 | GFP_KERNEL); |
| 233 | if (!dev->isoc_ctl.transfer_buffer) { |
| 234 | au0828_isocdbg("cannot allocate memory for usb transfer\n"); |
| 235 | kfree(dev->isoc_ctl.urb); |
| 236 | return -ENOMEM; |
| 237 | } |
| 238 | |
| 239 | dev->isoc_ctl.max_pkt_size = max_pkt_size; |
| 240 | dev->isoc_ctl.buf = NULL; |
| 241 | |
| 242 | sb_size = max_packets * dev->isoc_ctl.max_pkt_size; |
| 243 | |
| 244 | /* allocate urbs and transfer buffers */ |
| 245 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 246 | urb = usb_alloc_urb(max_packets, GFP_KERNEL); |
| 247 | if (!urb) { |
| 248 | au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); |
| 249 | au0828_uninit_isoc(dev); |
| 250 | return -ENOMEM; |
| 251 | } |
| 252 | dev->isoc_ctl.urb[i] = urb; |
| 253 | |
| 254 | dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->usbdev, |
| 255 | sb_size, GFP_KERNEL, &urb->transfer_dma); |
| 256 | if (!dev->isoc_ctl.transfer_buffer[i]) { |
| 257 | printk("unable to allocate %i bytes for transfer" |
| 258 | " buffer %i%s\n", |
| 259 | sb_size, i, |
| 260 | in_interrupt() ? " while in int" : ""); |
| 261 | au0828_uninit_isoc(dev); |
| 262 | return -ENOMEM; |
| 263 | } |
| 264 | memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); |
| 265 | |
| 266 | pipe = usb_rcvisocpipe(dev->usbdev, |
| 267 | dev->isoc_in_endpointaddr), |
| 268 | |
| 269 | usb_fill_int_urb(urb, dev->usbdev, pipe, |
| 270 | dev->isoc_ctl.transfer_buffer[i], sb_size, |
| 271 | au0828_irq_callback, dma_q, 1); |
| 272 | |
| 273 | urb->number_of_packets = max_packets; |
| 274 | urb->transfer_flags = URB_ISO_ASAP; |
| 275 | |
| 276 | k = 0; |
| 277 | for (j = 0; j < max_packets; j++) { |
| 278 | urb->iso_frame_desc[j].offset = k; |
| 279 | urb->iso_frame_desc[j].length = |
| 280 | dev->isoc_ctl.max_pkt_size; |
| 281 | k += dev->isoc_ctl.max_pkt_size; |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | init_waitqueue_head(&dma_q->wq); |
| 286 | |
| 287 | /* submit urbs and enables IRQ */ |
| 288 | for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { |
| 289 | rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); |
| 290 | if (rc) { |
| 291 | au0828_isocdbg("submit of urb %i failed (error=%i)\n", |
| 292 | i, rc); |
| 293 | au0828_uninit_isoc(dev); |
| 294 | return rc; |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | return 0; |
| 299 | } |
| 300 | |
| 301 | /* |
| 302 | * Announces that a buffer were filled and request the next |
| 303 | */ |
| 304 | static inline void buffer_filled(struct au0828_dev *dev, |
| 305 | struct au0828_dmaqueue *dma_q, |
| 306 | struct au0828_buffer *buf) |
| 307 | { |
| 308 | /* Advice that buffer was filled */ |
| 309 | au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); |
| 310 | |
| 311 | buf->vb.state = VIDEOBUF_DONE; |
| 312 | buf->vb.field_count++; |
| 313 | do_gettimeofday(&buf->vb.ts); |
| 314 | |
| 315 | dev->isoc_ctl.buf = NULL; |
| 316 | |
| 317 | list_del(&buf->vb.queue); |
| 318 | wake_up(&buf->vb.done); |
| 319 | } |
| 320 | |
| 321 | /* |
| 322 | * Identify the buffer header type and properly handles |
| 323 | */ |
| 324 | static void au0828_copy_video(struct au0828_dev *dev, |
| 325 | struct au0828_dmaqueue *dma_q, |
| 326 | struct au0828_buffer *buf, |
| 327 | unsigned char *p, |
| 328 | unsigned char *outp, unsigned long len) |
| 329 | { |
| 330 | void *fieldstart, *startwrite, *startread; |
| 331 | int linesdone, currlinedone, offset, lencopy, remain; |
| 332 | int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ |
| 333 | |
| 334 | if (dma_q->pos + len > buf->vb.size) |
| 335 | len = buf->vb.size - dma_q->pos; |
| 336 | |
| 337 | startread = p; |
| 338 | remain = len; |
| 339 | |
| 340 | /* Interlaces frame */ |
| 341 | if (buf->top_field) |
| 342 | fieldstart = outp; |
| 343 | else |
| 344 | fieldstart = outp + bytesperline; |
| 345 | |
| 346 | linesdone = dma_q->pos / bytesperline; |
| 347 | currlinedone = dma_q->pos % bytesperline; |
| 348 | offset = linesdone * bytesperline * 2 + currlinedone; |
| 349 | startwrite = fieldstart + offset; |
| 350 | lencopy = bytesperline - currlinedone; |
| 351 | lencopy = lencopy > remain ? remain : lencopy; |
| 352 | |
| 353 | if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { |
| 354 | au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", |
| 355 | ((char *)startwrite + lencopy) - |
| 356 | ((char *)outp + buf->vb.size)); |
| 357 | remain = (char *)outp + buf->vb.size - (char *)startwrite; |
| 358 | lencopy = remain; |
| 359 | } |
| 360 | if (lencopy <= 0) |
| 361 | return; |
| 362 | memcpy(startwrite, startread, lencopy); |
| 363 | |
| 364 | remain -= lencopy; |
| 365 | |
| 366 | while (remain > 0) { |
| 367 | startwrite += lencopy + bytesperline; |
| 368 | startread += lencopy; |
| 369 | if (bytesperline > remain) |
| 370 | lencopy = remain; |
| 371 | else |
| 372 | lencopy = bytesperline; |
| 373 | |
| 374 | if ((char *)startwrite + lencopy > (char *)outp + |
| 375 | buf->vb.size) { |
| 376 | au0828_isocdbg("Overflow of %zi bytes past buffer end (2)\n", |
| 377 | ((char *)startwrite + lencopy) - |
| 378 | ((char *)outp + buf->vb.size)); |
| 379 | lencopy = remain = (char *)outp + buf->vb.size - |
| 380 | (char *)startwrite; |
| 381 | } |
| 382 | if (lencopy <= 0) |
| 383 | break; |
| 384 | |
| 385 | memcpy(startwrite, startread, lencopy); |
| 386 | |
| 387 | remain -= lencopy; |
| 388 | } |
| 389 | |
| 390 | if (offset > 1440) { |
| 391 | /* We have enough data to check for greenscreen */ |
| 392 | if (outp[0] < 0x60 && outp[1440] < 0x60) { |
| 393 | dev->greenscreen_detected = 1; |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | dma_q->pos += len; |
| 398 | } |
| 399 | |
| 400 | /* |
| 401 | * video-buf generic routine to get the next available buffer |
| 402 | */ |
| 403 | static inline void get_next_buf(struct au0828_dmaqueue *dma_q, |
| 404 | struct au0828_buffer **buf) |
| 405 | { |
| 406 | struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); |
| 407 | |
| 408 | if (list_empty(&dma_q->active)) { |
| 409 | au0828_isocdbg("No active queue to serve\n"); |
| 410 | dev->isoc_ctl.buf = NULL; |
| 411 | *buf = NULL; |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | /* Get the next buffer */ |
| 416 | *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue); |
| 417 | dev->isoc_ctl.buf = *buf; |
| 418 | |
| 419 | return; |
| 420 | } |
| 421 | |
| 422 | /* |
| 423 | * Controls the isoc copy of each urb packet |
| 424 | */ |
| 425 | static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) |
| 426 | { |
| 427 | struct au0828_buffer *buf; |
| 428 | struct au0828_dmaqueue *dma_q = urb->context; |
| 429 | unsigned char *outp = NULL; |
| 430 | int i, len = 0, rc = 1; |
| 431 | unsigned char *p; |
| 432 | unsigned char fbyte; |
| 433 | |
| 434 | if (!dev) |
| 435 | return 0; |
| 436 | |
| 437 | if ((dev->dev_state & DEV_DISCONNECTED) || |
| 438 | (dev->dev_state & DEV_MISCONFIGURED)) |
| 439 | return 0; |
| 440 | |
| 441 | if (urb->status < 0) { |
| 442 | print_err_status(dev, -1, urb->status); |
| 443 | if (urb->status == -ENOENT) |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | buf = dev->isoc_ctl.buf; |
| 448 | if (buf != NULL) |
| 449 | outp = videobuf_to_vmalloc(&buf->vb); |
| 450 | |
| 451 | for (i = 0; i < urb->number_of_packets; i++) { |
| 452 | int status = urb->iso_frame_desc[i].status; |
| 453 | |
| 454 | if (status < 0) { |
| 455 | print_err_status(dev, i, status); |
| 456 | if (urb->iso_frame_desc[i].status != -EPROTO) |
| 457 | continue; |
| 458 | } |
| 459 | |
| 460 | if (urb->iso_frame_desc[i].actual_length <= 0) { |
| 461 | continue; |
| 462 | } |
| 463 | if (urb->iso_frame_desc[i].actual_length > |
| 464 | dev->max_pkt_size) { |
| 465 | au0828_isocdbg("packet bigger than packet size"); |
| 466 | continue; |
| 467 | } |
| 468 | |
| 469 | p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
| 470 | fbyte = p[0]; |
| 471 | len = urb->iso_frame_desc[i].actual_length - 4; |
| 472 | p += 4; |
| 473 | |
| 474 | if (fbyte & 0x80) { |
| 475 | len -= 4; |
| 476 | p += 4; |
| 477 | au0828_isocdbg("Video frame %s\n", |
| 478 | (fbyte & 0x40) ? "odd" : "even"); |
| 479 | if (!(fbyte & 0x40)) { |
| 480 | if (buf != NULL) |
| 481 | buffer_filled(dev, dma_q, buf); |
| 482 | get_next_buf(dma_q, &buf); |
| 483 | if (buf == NULL) { |
| 484 | outp = NULL; |
| 485 | } else |
| 486 | outp = videobuf_to_vmalloc(&buf->vb); |
| 487 | } |
| 488 | |
| 489 | if (buf != NULL) { |
| 490 | if (fbyte & 0x40) { |
| 491 | buf->top_field = 1; |
| 492 | } else { |
| 493 | buf->top_field = 0; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | dma_q->pos = 0; |
| 498 | } |
| 499 | if (buf != NULL) { |
| 500 | au0828_copy_video(dev, dma_q, buf, p, outp, len); |
| 501 | } |
| 502 | } |
| 503 | return rc; |
| 504 | } |
| 505 | |
| 506 | static int |
| 507 | buffer_setup(struct videobuf_queue *vq, unsigned int *count, |
| 508 | unsigned int *size) |
| 509 | { |
| 510 | struct au0828_fh *fh = vq->priv_data; |
| 511 | *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3; |
| 512 | |
| 513 | if (0 == *count) |
| 514 | *count = AU0828_DEF_BUF; |
| 515 | |
| 516 | if (*count < AU0828_MIN_BUF) |
| 517 | *count = AU0828_MIN_BUF; |
| 518 | return 0; |
| 519 | } |
| 520 | |
| 521 | /* This is called *without* dev->slock held; please keep it that way */ |
| 522 | static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf) |
| 523 | { |
| 524 | struct au0828_fh *fh = vq->priv_data; |
| 525 | struct au0828_dev *dev = fh->dev; |
| 526 | unsigned long flags = 0; |
| 527 | if (in_interrupt()) |
| 528 | BUG(); |
| 529 | |
| 530 | /* We used to wait for the buffer to finish here, but this didn't work |
| 531 | because, as we were keeping the state as VIDEOBUF_QUEUED, |
| 532 | videobuf_queue_cancel marked it as finished for us. |
| 533 | (Also, it could wedge forever if the hardware was misconfigured.) |
| 534 | |
| 535 | This should be safe; by the time we get here, the buffer isn't |
| 536 | queued anymore. If we ever start marking the buffers as |
| 537 | VIDEOBUF_ACTIVE, it won't be, though. |
| 538 | */ |
| 539 | spin_lock_irqsave(&dev->slock, flags); |
| 540 | if (dev->isoc_ctl.buf == buf) |
| 541 | dev->isoc_ctl.buf = NULL; |
| 542 | spin_unlock_irqrestore(&dev->slock, flags); |
| 543 | |
| 544 | videobuf_vmalloc_free(&buf->vb); |
| 545 | buf->vb.state = VIDEOBUF_NEEDS_INIT; |
| 546 | } |
| 547 | |
| 548 | static int |
| 549 | buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, |
| 550 | enum v4l2_field field) |
| 551 | { |
| 552 | struct au0828_fh *fh = vq->priv_data; |
| 553 | struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb); |
| 554 | struct au0828_dev *dev = fh->dev; |
| 555 | int rc = 0, urb_init = 0; |
| 556 | |
| 557 | buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3; |
| 558 | |
| 559 | if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| 560 | return -EINVAL; |
| 561 | |
| 562 | buf->vb.width = dev->width; |
| 563 | buf->vb.height = dev->height; |
| 564 | buf->vb.field = field; |
| 565 | |
| 566 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
| 567 | rc = videobuf_iolock(vq, &buf->vb, NULL); |
| 568 | if (rc < 0) { |
| 569 | printk("videobuf_iolock failed\n"); |
| 570 | goto fail; |
| 571 | } |
| 572 | } |
| 573 | |
| 574 | if (!dev->isoc_ctl.num_bufs) |
| 575 | urb_init = 1; |
| 576 | |
| 577 | if (urb_init) { |
| 578 | rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, |
| 579 | AU0828_MAX_ISO_BUFS, dev->max_pkt_size, |
| 580 | au0828_isoc_copy); |
| 581 | if (rc < 0) { |
| 582 | printk("au0828_init_isoc failed\n"); |
| 583 | goto fail; |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | buf->vb.state = VIDEOBUF_PREPARED; |
| 588 | return 0; |
| 589 | |
| 590 | fail: |
| 591 | free_buffer(vq, buf); |
| 592 | return rc; |
| 593 | } |
| 594 | |
| 595 | static void |
| 596 | buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) |
| 597 | { |
| 598 | struct au0828_buffer *buf = container_of(vb, |
| 599 | struct au0828_buffer, |
| 600 | vb); |
| 601 | struct au0828_fh *fh = vq->priv_data; |
| 602 | struct au0828_dev *dev = fh->dev; |
| 603 | struct au0828_dmaqueue *vidq = &dev->vidq; |
| 604 | |
| 605 | buf->vb.state = VIDEOBUF_QUEUED; |
| 606 | list_add_tail(&buf->vb.queue, &vidq->active); |
| 607 | } |
| 608 | |
| 609 | static void buffer_release(struct videobuf_queue *vq, |
| 610 | struct videobuf_buffer *vb) |
| 611 | { |
| 612 | struct au0828_buffer *buf = container_of(vb, |
| 613 | struct au0828_buffer, |
| 614 | vb); |
| 615 | |
| 616 | free_buffer(vq, buf); |
| 617 | } |
| 618 | |
| 619 | static struct videobuf_queue_ops au0828_video_qops = { |
| 620 | .buf_setup = buffer_setup, |
| 621 | .buf_prepare = buffer_prepare, |
| 622 | .buf_queue = buffer_queue, |
| 623 | .buf_release = buffer_release, |
| 624 | }; |
| 625 | |
| 626 | /* ------------------------------------------------------------------ |
| 627 | V4L2 interface |
| 628 | ------------------------------------------------------------------*/ |
| 629 | |
| 630 | static int au0828_i2s_init(struct au0828_dev *dev) |
| 631 | { |
| 632 | /* Enable i2s mode */ |
| 633 | au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * Auvitek au0828 analog stream enable |
| 639 | * Please set interface0 to AS5 before enable the stream |
| 640 | */ |
| 641 | int au0828_analog_stream_enable(struct au0828_dev *d) |
| 642 | { |
| 643 | dprintk(1, "au0828_analog_stream_enable called\n"); |
| 644 | au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); |
| 645 | au0828_writereg(d, 0x106, 0x00); |
| 646 | /* set x position */ |
| 647 | au0828_writereg(d, 0x110, 0x00); |
| 648 | au0828_writereg(d, 0x111, 0x00); |
| 649 | au0828_writereg(d, 0x114, 0xa0); |
| 650 | au0828_writereg(d, 0x115, 0x05); |
| 651 | /* set y position */ |
| 652 | au0828_writereg(d, 0x112, 0x02); |
| 653 | au0828_writereg(d, 0x113, 0x00); |
| 654 | au0828_writereg(d, 0x116, 0xf2); |
| 655 | au0828_writereg(d, 0x117, 0x00); |
| 656 | au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); |
| 657 | |
| 658 | return 0; |
| 659 | } |
| 660 | |
| 661 | int au0828_analog_stream_disable(struct au0828_dev *d) |
| 662 | { |
| 663 | dprintk(1, "au0828_analog_stream_disable called\n"); |
| 664 | au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); |
| 665 | return 0; |
| 666 | } |
| 667 | |
| 668 | void au0828_analog_stream_reset(struct au0828_dev *dev) |
| 669 | { |
| 670 | dprintk(1, "au0828_analog_stream_reset called\n"); |
| 671 | au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); |
| 672 | mdelay(30); |
| 673 | au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); |
| 674 | } |
| 675 | |
| 676 | /* |
| 677 | * Some operations needs to stop current streaming |
| 678 | */ |
| 679 | static int au0828_stream_interrupt(struct au0828_dev *dev) |
| 680 | { |
| 681 | int ret = 0; |
| 682 | |
| 683 | dev->stream_state = STREAM_INTERRUPT; |
| 684 | if(dev->dev_state == DEV_DISCONNECTED) |
| 685 | return -ENODEV; |
| 686 | else if(ret) { |
| 687 | dev->dev_state = DEV_MISCONFIGURED; |
| 688 | dprintk(1, "%s device is misconfigured!\n", __FUNCTION__); |
| 689 | return ret; |
| 690 | } |
| 691 | return 0; |
| 692 | } |
| 693 | |
| 694 | /* |
| 695 | * au0828_release_resources |
| 696 | * unregister v4l2 devices |
| 697 | */ |
| 698 | void au0828_analog_unregister(struct au0828_dev *dev) |
| 699 | { |
| 700 | dprintk(1, "au0828_release_resources called\n"); |
| 701 | mutex_lock(&au0828_sysfs_lock); |
| 702 | |
Devin Heitmueller | 2eaf396 | 2009-03-11 03:01:02 -0300 | [diff] [blame^] | 703 | if (dev->vdev) { |
| 704 | list_del(&dev->au0828list); |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 705 | video_unregister_device(dev->vdev); |
Devin Heitmueller | 2eaf396 | 2009-03-11 03:01:02 -0300 | [diff] [blame^] | 706 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 707 | if (dev->vbi_dev) |
| 708 | video_unregister_device(dev->vbi_dev); |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 709 | |
| 710 | mutex_unlock(&au0828_sysfs_lock); |
| 711 | } |
| 712 | |
| 713 | |
| 714 | /* Usage lock check functions */ |
| 715 | static int res_get(struct au0828_fh *fh) |
| 716 | { |
| 717 | struct au0828_dev *dev = fh->dev; |
| 718 | int rc = 0; |
| 719 | |
| 720 | /* This instance already has stream_on */ |
| 721 | if (fh->stream_on) |
| 722 | return rc; |
| 723 | |
| 724 | if (dev->stream_on) |
| 725 | return -EBUSY; |
| 726 | |
| 727 | dev->stream_on = 1; |
| 728 | fh->stream_on = 1; |
| 729 | return rc; |
| 730 | } |
| 731 | |
| 732 | static int res_check(struct au0828_fh *fh) |
| 733 | { |
| 734 | return fh->stream_on; |
| 735 | } |
| 736 | |
| 737 | static void res_free(struct au0828_fh *fh) |
| 738 | { |
| 739 | struct au0828_dev *dev = fh->dev; |
| 740 | |
| 741 | fh->stream_on = 0; |
| 742 | dev->stream_on = 0; |
| 743 | } |
| 744 | |
| 745 | static int au0828_v4l2_open(struct file *filp) |
| 746 | { |
| 747 | int minor = video_devdata(filp)->minor; |
| 748 | int ret = 0; |
| 749 | struct au0828_dev *h, *dev = NULL; |
| 750 | struct au0828_fh *fh; |
| 751 | int type = 0; |
| 752 | struct list_head *list; |
| 753 | |
| 754 | list_for_each(list, &au0828_devlist) { |
| 755 | h = list_entry(list, struct au0828_dev, au0828list); |
| 756 | if(h->vdev->minor == minor) { |
| 757 | dev = h; |
| 758 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 759 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 760 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 761 | if(h->vbi_dev->minor == minor) { |
| 762 | dev = h; |
| 763 | type = V4L2_BUF_TYPE_VBI_CAPTURE; |
| 764 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 765 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | if(NULL == dev) |
| 769 | return -ENODEV; |
| 770 | |
| 771 | fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL); |
| 772 | if(NULL == fh) { |
| 773 | dprintk(1, "Failed allocate au0828_fh struct!\n"); |
| 774 | return -ENOMEM; |
| 775 | } |
| 776 | |
| 777 | fh->type = type; |
| 778 | fh->dev = dev; |
| 779 | filp->private_data = fh; |
| 780 | |
| 781 | if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { |
| 782 | /* set au0828 interface0 to AS5 here again */ |
| 783 | ret = usb_set_interface(dev->usbdev, 0, 5); |
| 784 | if(ret < 0) { |
| 785 | printk("Au0828 can't set alt setting to 5!\n"); |
| 786 | return -EBUSY; |
| 787 | } |
| 788 | dev->width = NTSC_STD_W; |
| 789 | dev->height = NTSC_STD_H; |
| 790 | dev->frame_size = dev->width * dev->height * 2; |
| 791 | dev->field_size = dev->width * dev->height; |
| 792 | dev->bytesperline = dev->width * 2; |
| 793 | |
| 794 | au0828_analog_stream_enable(dev); |
| 795 | au0828_analog_stream_reset(dev); |
| 796 | |
| 797 | /* If we were doing ac97 instead of i2s, it would go here...*/ |
| 798 | au0828_i2s_init(dev); |
| 799 | |
| 800 | dev->stream_state = STREAM_OFF; |
| 801 | dev->dev_state |= DEV_INITIALIZED; |
| 802 | } |
| 803 | |
| 804 | dev->users++; |
| 805 | |
| 806 | videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops, |
| 807 | NULL, &dev->slock, fh->type, |
| 808 | V4L2_FIELD_INTERLACED, |
| 809 | sizeof(struct au0828_buffer), fh); |
| 810 | |
| 811 | return ret; |
| 812 | } |
| 813 | |
| 814 | static int au0828_v4l2_close(struct file *filp) |
| 815 | { |
| 816 | int ret; |
| 817 | struct au0828_fh *fh = filp->private_data; |
| 818 | struct au0828_dev *dev = fh->dev; |
| 819 | |
| 820 | mutex_lock(&dev->lock); |
| 821 | if (res_check(fh)) |
| 822 | res_free(fh); |
| 823 | |
| 824 | if(dev->users == 1) { |
| 825 | videobuf_stop(&fh->vb_vidq); |
| 826 | videobuf_mmap_free(&fh->vb_vidq); |
| 827 | |
| 828 | if(dev->dev_state & DEV_DISCONNECTED) { |
| 829 | au0828_analog_unregister(dev); |
| 830 | mutex_unlock(&dev->lock); |
| 831 | kfree(dev); |
| 832 | return 0; |
| 833 | } |
| 834 | |
| 835 | au0828_analog_stream_disable(dev); |
| 836 | |
| 837 | au0828_uninit_isoc(dev); |
| 838 | |
| 839 | /* When close the device, set the usb intf0 into alt0 to free |
| 840 | USB bandwidth */ |
| 841 | ret = usb_set_interface(dev->usbdev, 0, 0); |
| 842 | if(ret < 0) |
| 843 | printk("Au0828 can't set alt setting to 0!\n"); |
| 844 | } |
| 845 | |
| 846 | kfree(fh); |
| 847 | dev->users--; |
| 848 | wake_up_interruptible_nr(&dev->open, 1); |
| 849 | mutex_unlock(&dev->lock); |
| 850 | return 0; |
| 851 | } |
| 852 | |
| 853 | static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf, |
| 854 | size_t count, loff_t *pos) |
| 855 | { |
| 856 | struct au0828_fh *fh = filp->private_data; |
| 857 | struct au0828_dev *dev = fh->dev; |
| 858 | int rc; |
| 859 | |
| 860 | rc = check_dev(dev); |
| 861 | if (rc < 0) |
| 862 | return rc; |
| 863 | |
| 864 | if(fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 865 | mutex_lock(&dev->lock); |
| 866 | rc = res_get(fh); |
| 867 | mutex_unlock(&dev->lock); |
| 868 | |
| 869 | if (unlikely(rc < 0)) |
| 870 | return rc; |
| 871 | |
| 872 | return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, |
| 873 | filp->f_flags & O_NONBLOCK); |
| 874 | } |
| 875 | return 0; |
| 876 | } |
| 877 | |
| 878 | static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait) |
| 879 | { |
| 880 | struct au0828_fh *fh = filp->private_data; |
| 881 | struct au0828_dev *dev = fh->dev; |
| 882 | int rc; |
| 883 | |
| 884 | rc = check_dev(dev); |
| 885 | if (rc < 0) |
| 886 | return rc; |
| 887 | |
| 888 | mutex_lock(&dev->lock); |
| 889 | rc = res_get(fh); |
| 890 | mutex_unlock(&dev->lock); |
| 891 | |
| 892 | if (unlikely(rc < 0)) |
| 893 | return POLLERR; |
| 894 | |
| 895 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type) |
| 896 | return POLLERR; |
| 897 | |
| 898 | return videobuf_poll_stream(filp, &fh->vb_vidq, wait); |
| 899 | } |
| 900 | |
| 901 | static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) |
| 902 | { |
| 903 | struct au0828_fh *fh = filp->private_data; |
| 904 | struct au0828_dev *dev = fh->dev; |
| 905 | int rc; |
| 906 | |
| 907 | rc = check_dev(dev); |
| 908 | if (rc < 0) |
| 909 | return rc; |
| 910 | |
| 911 | mutex_lock(&dev->lock); |
| 912 | rc = res_get(fh); |
| 913 | mutex_unlock(&dev->lock); |
| 914 | |
| 915 | if (unlikely(rc < 0)) |
| 916 | return rc; |
| 917 | |
| 918 | rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); |
| 919 | |
| 920 | dprintk(2, "vma start=0x%08lx, size=%ld, ret=%d\n", |
| 921 | (unsigned long)vma->vm_start, |
| 922 | (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, |
| 923 | rc); |
| 924 | |
| 925 | return rc; |
| 926 | } |
| 927 | |
| 928 | static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, |
| 929 | struct v4l2_format *format) |
| 930 | { |
| 931 | int ret; |
| 932 | int width = format->fmt.pix.width; |
| 933 | int height = format->fmt.pix.height; |
| 934 | unsigned int maxwidth, maxheight; |
| 935 | |
| 936 | maxwidth = 720; |
| 937 | maxheight = 480; |
| 938 | |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 939 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 940 | if(format->type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) { |
| 941 | dprintk(1, "VBI format set: to be supported!\n"); |
| 942 | return 0; |
| 943 | } |
| 944 | if(format->type == V4L2_BUF_TYPE_VBI_CAPTURE) { |
| 945 | return 0; |
| 946 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 947 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 948 | if(format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 949 | return -EINVAL; |
| 950 | } |
| 951 | |
| 952 | /* If they are demanding a format other than the one we support, |
| 953 | bail out (tvtime asks for UYVY and then retries with YUYV) */ |
| 954 | if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) { |
| 955 | return -EINVAL; |
| 956 | } |
| 957 | |
| 958 | /* format->fmt.pix.width only support 720 and height 480 */ |
| 959 | if(width != 720) |
| 960 | width = 720; |
| 961 | if(height != 480) |
| 962 | height = 480; |
| 963 | |
| 964 | format->fmt.pix.width = width; |
| 965 | format->fmt.pix.height = height; |
| 966 | format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; |
| 967 | format->fmt.pix.bytesperline = width * 2; |
| 968 | format->fmt.pix.sizeimage = width * height * 2; |
| 969 | format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 970 | format->fmt.pix.field = V4L2_FIELD_INTERLACED; |
| 971 | |
| 972 | if(cmd == VIDIOC_TRY_FMT) |
| 973 | return 0; |
| 974 | |
| 975 | /* maybe set new image format, driver current only support 720*480 */ |
| 976 | dev->width = width; |
| 977 | dev->height = height; |
| 978 | dev->frame_size = width * height * 2; |
| 979 | dev->field_size = width * height; |
| 980 | dev->bytesperline = width * 2; |
| 981 | |
| 982 | if(dev->stream_state == STREAM_ON) { |
| 983 | dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); |
| 984 | if((ret = au0828_stream_interrupt(dev))) { |
| 985 | dprintk(1, "error interrupting video stream!\n"); |
| 986 | return ret; |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | /* set au0828 interface0 to AS5 here again */ |
| 991 | ret = usb_set_interface(dev->usbdev, 0, 5); |
| 992 | if(ret < 0) { |
| 993 | printk("Au0828 can't set alt setting to 5!\n"); |
| 994 | return -EBUSY; |
| 995 | } |
| 996 | |
| 997 | au0828_analog_stream_enable(dev); |
| 998 | |
| 999 | return 0; |
| 1000 | } |
| 1001 | |
| 1002 | |
| 1003 | static int vidioc_queryctrl(struct file *file, void *priv, |
| 1004 | struct v4l2_queryctrl *qc) |
| 1005 | { |
| 1006 | struct au0828_fh *fh = priv; |
| 1007 | struct au0828_dev *dev = fh->dev; |
| 1008 | au0828_call_i2c_clients(dev, VIDIOC_QUERYCTRL, qc); |
| 1009 | if (qc->type) |
| 1010 | return 0; |
| 1011 | else |
| 1012 | return -EINVAL; |
| 1013 | } |
| 1014 | |
| 1015 | static int vidioc_querycap(struct file *file, void *priv, |
| 1016 | struct v4l2_capability *cap) |
| 1017 | { |
| 1018 | struct au0828_fh *fh = priv; |
| 1019 | struct au0828_dev *dev = fh->dev; |
| 1020 | |
| 1021 | memset(cap, 0, sizeof(*cap)); |
| 1022 | strlcpy(cap->driver, "au0828", sizeof(cap->driver)); |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1023 | strlcpy(cap->card, dev->board.name, sizeof(cap->card)); |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1024 | strlcpy(cap->bus_info, dev->usbdev->dev.bus_id, sizeof(cap->bus_info)); |
| 1025 | |
| 1026 | cap->version = AU0828_VERSION_CODE; |
| 1027 | |
| 1028 | /*set the device capabilities */ |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1029 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 1030 | #ifdef VBI_NOT_YET_WORKING |
| 1031 | V4L2_CAP_VBI_CAPTURE | |
| 1032 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1033 | V4L2_CAP_AUDIO | |
| 1034 | V4L2_CAP_READWRITE | |
| 1035 | V4L2_CAP_STREAMING | |
| 1036 | V4L2_CAP_TUNER; |
| 1037 | return 0; |
| 1038 | } |
| 1039 | |
| 1040 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
| 1041 | struct v4l2_fmtdesc *f) |
| 1042 | { |
| 1043 | if(f->index) |
| 1044 | return -EINVAL; |
| 1045 | |
| 1046 | memset(f, 0, sizeof(*f)); |
| 1047 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1048 | strcpy(f->description, "Packed YUV2"); |
| 1049 | |
| 1050 | f->flags = 0; |
| 1051 | f->pixelformat = V4L2_PIX_FMT_UYVY; |
| 1052 | |
| 1053 | memset(f->reserved, 0, sizeof(f->reserved)); |
| 1054 | return 0; |
| 1055 | } |
| 1056 | |
| 1057 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
| 1058 | struct v4l2_format *f) |
| 1059 | { |
| 1060 | struct au0828_fh *fh = priv; |
| 1061 | struct au0828_dev *dev = fh->dev; |
| 1062 | |
| 1063 | f->fmt.pix.width = dev->width; |
| 1064 | f->fmt.pix.height = dev->height; |
| 1065 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; |
| 1066 | f->fmt.pix.bytesperline = dev->bytesperline; |
| 1067 | f->fmt.pix.sizeimage = dev->frame_size; |
| 1068 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ |
| 1069 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; |
| 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
| 1074 | struct v4l2_format *f) |
| 1075 | { |
| 1076 | struct au0828_fh *fh = priv; |
| 1077 | struct au0828_dev *dev = fh->dev; |
| 1078 | |
| 1079 | return au0828_set_format(dev, VIDIOC_TRY_FMT, f); |
| 1080 | } |
| 1081 | |
| 1082 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
| 1083 | struct v4l2_format *f) |
| 1084 | { |
| 1085 | struct au0828_fh *fh = priv; |
| 1086 | struct au0828_dev *dev = fh->dev; |
| 1087 | int rc; |
| 1088 | |
| 1089 | if (videobuf_queue_is_busy(&fh->vb_vidq)) { |
| 1090 | printk("%s queue busy\n", __func__); |
| 1091 | rc = -EBUSY; |
| 1092 | goto out; |
| 1093 | } |
| 1094 | |
| 1095 | if (dev->stream_on && !fh->stream_on) { |
| 1096 | printk("%s device in use by another fh\n", __func__); |
| 1097 | rc = -EBUSY; |
| 1098 | goto out; |
| 1099 | } |
| 1100 | |
| 1101 | return au0828_set_format(dev, VIDIOC_S_FMT, f); |
| 1102 | out: |
| 1103 | return rc; |
| 1104 | } |
| 1105 | |
| 1106 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm) |
| 1107 | { |
| 1108 | struct au0828_fh *fh = priv; |
| 1109 | struct au0828_dev *dev = fh->dev; |
| 1110 | |
| 1111 | /* FIXME: when we support something other than NTSC, we are going to |
| 1112 | have to make the au0828 bridge adjust the size of its capture |
| 1113 | buffer, which is currently hardcoded at 720x480 */ |
| 1114 | |
| 1115 | au0828_call_i2c_clients(dev, VIDIOC_S_STD, norm); |
| 1116 | return 0; |
| 1117 | } |
| 1118 | |
| 1119 | static int vidioc_enum_input(struct file *file, void *priv, |
| 1120 | struct v4l2_input *input) |
| 1121 | { |
| 1122 | struct au0828_fh *fh = priv; |
| 1123 | struct au0828_dev *dev = fh->dev; |
| 1124 | unsigned int tmp; |
| 1125 | |
| 1126 | static const char *inames[] = { |
| 1127 | [AU0828_VMUX_COMPOSITE] = "Composite", |
| 1128 | [AU0828_VMUX_SVIDEO] = "S-Video", |
| 1129 | [AU0828_VMUX_CABLE] = "Cable TV", |
| 1130 | [AU0828_VMUX_TELEVISION] = "Television", |
| 1131 | [AU0828_VMUX_DVB] = "DVB", |
| 1132 | [AU0828_VMUX_DEBUG] = "tv debug" |
| 1133 | }; |
| 1134 | |
| 1135 | tmp = input->index; |
| 1136 | |
| 1137 | if(tmp > AU0828_MAX_INPUT) |
| 1138 | return -EINVAL; |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1139 | if(AUVI_INPUT(tmp).type == 0) |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1140 | return -EINVAL; |
| 1141 | |
| 1142 | memset(input, 0, sizeof(*input)); |
| 1143 | input->index = tmp; |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1144 | strcpy(input->name, inames[AUVI_INPUT(tmp).type]); |
| 1145 | if((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || |
| 1146 | (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1147 | input->type |= V4L2_INPUT_TYPE_TUNER; |
| 1148 | else |
| 1149 | input->type |= V4L2_INPUT_TYPE_CAMERA; |
| 1150 | |
| 1151 | input->std = dev->vdev->tvnorms; |
| 1152 | |
| 1153 | return 0; |
| 1154 | } |
| 1155 | |
| 1156 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
| 1157 | { |
| 1158 | struct au0828_fh *fh = priv; |
| 1159 | struct au0828_dev *dev = fh->dev; |
| 1160 | *i = dev->ctrl_input; |
| 1161 | return 0; |
| 1162 | } |
| 1163 | |
| 1164 | static int vidioc_s_input(struct file *file, void *priv, unsigned int index) |
| 1165 | { |
| 1166 | struct au0828_fh *fh = priv; |
| 1167 | struct au0828_dev *dev = fh->dev; |
| 1168 | int i; |
| 1169 | struct v4l2_routing route; |
| 1170 | |
| 1171 | dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __FUNCTION__, |
| 1172 | index); |
| 1173 | if(index >= AU0828_MAX_INPUT) |
| 1174 | return -EINVAL; |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1175 | if(AUVI_INPUT(index).type == 0) |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1176 | return -EINVAL; |
| 1177 | dev->ctrl_input = index; |
| 1178 | |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1179 | switch(AUVI_INPUT(index).type) { |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1180 | case AU0828_VMUX_SVIDEO: |
| 1181 | { |
| 1182 | dev->input_type = AU0828_VMUX_SVIDEO; |
| 1183 | break; |
| 1184 | } |
| 1185 | case AU0828_VMUX_COMPOSITE: |
| 1186 | { |
| 1187 | dev->input_type = AU0828_VMUX_COMPOSITE; |
| 1188 | break; |
| 1189 | } |
| 1190 | case AU0828_VMUX_TELEVISION: |
| 1191 | { |
| 1192 | dev->input_type = AU0828_VMUX_TELEVISION; |
| 1193 | break; |
| 1194 | } |
| 1195 | default: |
| 1196 | ; |
| 1197 | } |
| 1198 | |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1199 | route.input = AUVI_INPUT(index).vmux; |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1200 | route.output = 0; |
| 1201 | au0828_call_i2c_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route); |
| 1202 | |
| 1203 | for (i = 0; i < AU0828_MAX_INPUT; i++) { |
| 1204 | int enable = 0; |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1205 | if (AUVI_INPUT(i).audio_setup == NULL) { |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1206 | continue; |
| 1207 | } |
| 1208 | |
| 1209 | if (i == index) |
| 1210 | enable = 1; |
| 1211 | else |
| 1212 | enable = 0; |
| 1213 | if (enable) { |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1214 | (AUVI_INPUT(i).audio_setup)(dev, enable); |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1215 | } else { |
| 1216 | /* Make sure we leave it turned on if some |
| 1217 | other input is routed to this callback */ |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1218 | if ((AUVI_INPUT(i).audio_setup) != |
| 1219 | ((AUVI_INPUT(index).audio_setup))) { |
| 1220 | (AUVI_INPUT(i).audio_setup)(dev, enable); |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1221 | } |
| 1222 | } |
| 1223 | } |
| 1224 | |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1225 | route.input = AUVI_INPUT(index).amux; |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1226 | au0828_call_i2c_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING, |
| 1227 | &route); |
| 1228 | return 0; |
| 1229 | } |
| 1230 | |
| 1231 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) |
| 1232 | { |
| 1233 | struct au0828_fh *fh = priv; |
| 1234 | struct au0828_dev *dev = fh->dev; |
| 1235 | unsigned int index = a->index; |
| 1236 | |
| 1237 | if(a->index > 1) |
| 1238 | return -EINVAL; |
| 1239 | |
| 1240 | memset(a, 0, sizeof(*a)); |
| 1241 | index = dev->ctrl_ainput; |
| 1242 | if(index == 0) |
| 1243 | strcpy(a->name, "Television"); |
| 1244 | else |
| 1245 | strcpy(a->name, "Line in"); |
| 1246 | |
| 1247 | a->capability = V4L2_AUDCAP_STEREO; |
| 1248 | a->index = index; |
| 1249 | return 0; |
| 1250 | } |
| 1251 | |
| 1252 | static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a) |
| 1253 | { |
| 1254 | struct au0828_fh *fh = priv; |
| 1255 | struct au0828_dev *dev = fh->dev; |
| 1256 | if(a->index != dev->ctrl_ainput) |
| 1257 | return -EINVAL; |
| 1258 | return 0; |
| 1259 | } |
| 1260 | |
| 1261 | static int vidioc_g_ctrl(struct file *file, void *priv, |
| 1262 | struct v4l2_control *ctrl) |
| 1263 | { |
| 1264 | struct au0828_fh *fh = priv; |
| 1265 | struct au0828_dev *dev = fh->dev; |
| 1266 | |
| 1267 | au0828_call_i2c_clients(dev, VIDIOC_G_CTRL, ctrl); |
| 1268 | return 0; |
| 1269 | |
| 1270 | } |
| 1271 | |
| 1272 | static int vidioc_s_ctrl(struct file *file, void *priv, |
| 1273 | struct v4l2_control *ctrl) |
| 1274 | { |
| 1275 | struct au0828_fh *fh = priv; |
| 1276 | struct au0828_dev *dev = fh->dev; |
| 1277 | au0828_call_i2c_clients(dev, VIDIOC_S_CTRL, ctrl); |
| 1278 | return 0; |
| 1279 | } |
| 1280 | |
| 1281 | static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) |
| 1282 | { |
| 1283 | struct au0828_fh *fh = priv; |
| 1284 | struct au0828_dev *dev = fh->dev; |
| 1285 | |
| 1286 | if(t->index != 0) |
| 1287 | return -EINVAL; |
| 1288 | |
| 1289 | memset(t, 0, sizeof(*t)); |
| 1290 | strcpy(t->name, "Auvitek tuner"); |
| 1291 | |
| 1292 | au0828_call_i2c_clients(dev, VIDIOC_G_TUNER, t); |
| 1293 | return 0; |
| 1294 | } |
| 1295 | |
| 1296 | static int vidioc_s_tuner(struct file *file, void *priv, |
| 1297 | struct v4l2_tuner *t) |
| 1298 | { |
| 1299 | struct au0828_fh *fh = priv; |
| 1300 | struct au0828_dev *dev = fh->dev; |
| 1301 | |
| 1302 | if(t->index != 0) |
| 1303 | return -EINVAL; |
| 1304 | |
| 1305 | t->type = V4L2_TUNER_ANALOG_TV; |
| 1306 | au0828_call_i2c_clients(dev, VIDIOC_S_TUNER, t); |
| 1307 | dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, |
| 1308 | t->afc); |
| 1309 | return 0; |
| 1310 | |
| 1311 | } |
| 1312 | |
| 1313 | static int vidioc_g_frequency(struct file *file, void *priv, |
| 1314 | struct v4l2_frequency *freq) |
| 1315 | { |
| 1316 | struct au0828_fh *fh = priv; |
| 1317 | struct au0828_dev *dev = fh->dev; |
| 1318 | memset(freq, 0, sizeof(*freq)); |
| 1319 | freq->type = V4L2_TUNER_ANALOG_TV; |
| 1320 | freq->frequency = dev->ctrl_freq; |
| 1321 | return 0; |
| 1322 | } |
| 1323 | |
| 1324 | static int vidioc_s_frequency(struct file *file, void *priv, |
| 1325 | struct v4l2_frequency *freq) |
| 1326 | { |
| 1327 | struct au0828_fh *fh = priv; |
| 1328 | struct au0828_dev *dev = fh->dev; |
| 1329 | |
| 1330 | if(freq->tuner != 0) |
| 1331 | return -EINVAL; |
| 1332 | if(freq->type != V4L2_TUNER_ANALOG_TV) |
| 1333 | return -EINVAL; |
| 1334 | |
| 1335 | dev->ctrl_freq = freq->frequency; |
| 1336 | |
| 1337 | au0828_call_i2c_clients(dev, VIDIOC_S_FREQUENCY, freq); |
| 1338 | |
| 1339 | au0828_analog_stream_reset(dev); |
| 1340 | |
| 1341 | return 0; |
| 1342 | } |
| 1343 | |
| 1344 | static int vidioc_g_chip_ident(struct file *file, void *priv, |
| 1345 | struct v4l2_dbg_chip_ident *chip) |
| 1346 | { |
| 1347 | struct au0828_fh *fh = priv; |
| 1348 | struct au0828_dev *dev = fh->dev; |
| 1349 | chip->ident = V4L2_IDENT_NONE; |
| 1350 | chip->revision = 0; |
| 1351 | |
Devin Heitmueller | d9109be | 2009-03-11 03:00:58 -0300 | [diff] [blame] | 1352 | if (v4l2_chip_match_host(&chip->match)) { |
| 1353 | chip->ident = V4L2_IDENT_AU0828; |
| 1354 | return 0; |
| 1355 | } |
| 1356 | |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1357 | au0828_call_i2c_clients(dev, VIDIOC_DBG_G_CHIP_IDENT, chip); |
Devin Heitmueller | d9109be | 2009-03-11 03:00:58 -0300 | [diff] [blame] | 1358 | if (chip->ident == V4L2_IDENT_NONE) |
| 1359 | return -EINVAL; |
| 1360 | |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1361 | return 0; |
| 1362 | } |
| 1363 | |
| 1364 | static int vidioc_cropcap(struct file *file, void *priv, |
| 1365 | struct v4l2_cropcap *cc) |
| 1366 | { |
| 1367 | struct au0828_fh *fh = priv; |
| 1368 | struct au0828_dev *dev = fh->dev; |
| 1369 | |
| 1370 | if(cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1371 | return -EINVAL; |
| 1372 | |
| 1373 | cc->bounds.left = 0; |
| 1374 | cc->bounds.top = 0; |
| 1375 | cc->bounds.width = dev->width; |
| 1376 | cc->bounds.height = dev->height; |
| 1377 | |
| 1378 | cc->defrect = cc->bounds; |
| 1379 | |
| 1380 | cc->pixelaspect.numerator = 54; |
| 1381 | cc->pixelaspect.denominator = 59; |
| 1382 | |
| 1383 | return 0; |
| 1384 | } |
| 1385 | |
| 1386 | static int vidioc_streamon(struct file *file, void *priv, |
| 1387 | enum v4l2_buf_type type) |
| 1388 | { |
| 1389 | struct au0828_fh *fh = priv; |
| 1390 | struct au0828_dev *dev = fh->dev; |
| 1391 | int b = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1392 | int rc; |
| 1393 | |
| 1394 | rc = check_dev(dev); |
| 1395 | if (rc < 0) |
| 1396 | return rc; |
| 1397 | |
| 1398 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1399 | au0828_analog_stream_enable(dev); |
| 1400 | au0828_call_i2c_clients(dev, VIDIOC_STREAMON, &b); |
| 1401 | } |
| 1402 | |
| 1403 | mutex_lock(&dev->lock); |
| 1404 | rc = res_get(fh); |
| 1405 | |
| 1406 | if (likely(rc >= 0)) |
| 1407 | rc = videobuf_streamon(&fh->vb_vidq); |
| 1408 | mutex_unlock(&dev->lock); |
| 1409 | |
| 1410 | return rc; |
| 1411 | } |
| 1412 | |
| 1413 | static int vidioc_streamoff(struct file *file, void *priv, |
| 1414 | enum v4l2_buf_type type) |
| 1415 | { |
| 1416 | struct au0828_fh *fh = priv; |
| 1417 | struct au0828_dev *dev = fh->dev; |
| 1418 | int b = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1419 | int i; |
| 1420 | int ret; |
| 1421 | int rc; |
| 1422 | |
| 1423 | rc = check_dev(dev); |
| 1424 | if (rc < 0) |
| 1425 | return rc; |
| 1426 | |
| 1427 | if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1428 | return -EINVAL; |
| 1429 | if (type != fh->type) |
| 1430 | return -EINVAL; |
| 1431 | |
| 1432 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1433 | au0828_call_i2c_clients(dev, VIDIOC_STREAMOFF, &b); |
| 1434 | if((ret = au0828_stream_interrupt(dev)) != 0) |
| 1435 | return ret; |
| 1436 | } |
| 1437 | |
| 1438 | for (i = 0; i < AU0828_MAX_INPUT; i++) { |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1439 | if (AUVI_INPUT(i).audio_setup == NULL) { |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1440 | continue; |
| 1441 | } |
Devin Heitmueller | f1add5b | 2009-03-11 03:00:47 -0300 | [diff] [blame] | 1442 | (AUVI_INPUT(i).audio_setup)(dev, 0); |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1443 | } |
| 1444 | |
| 1445 | mutex_lock(&dev->lock); |
| 1446 | videobuf_streamoff(&fh->vb_vidq); |
| 1447 | res_free(fh); |
| 1448 | mutex_unlock(&dev->lock); |
| 1449 | |
| 1450 | return 0; |
| 1451 | } |
| 1452 | |
| 1453 | static int vidioc_g_register(struct file *file, void *priv, |
| 1454 | struct v4l2_dbg_register *reg) |
| 1455 | { |
| 1456 | struct au0828_fh *fh = priv; |
| 1457 | struct au0828_dev *dev = fh->dev; |
| 1458 | |
| 1459 | switch (reg->match.type) { |
| 1460 | case V4L2_CHIP_MATCH_I2C_DRIVER: |
| 1461 | au0828_call_i2c_clients(dev, VIDIOC_DBG_G_REGISTER, reg); |
| 1462 | return 0; |
| 1463 | default: |
| 1464 | return -EINVAL; |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | static int vidioc_s_register(struct file *file, void *priv, |
| 1469 | struct v4l2_dbg_register *reg) |
| 1470 | { |
| 1471 | struct au0828_fh *fh = priv; |
| 1472 | struct au0828_dev *dev = fh->dev; |
| 1473 | |
| 1474 | switch (reg->match.type) { |
| 1475 | case V4L2_CHIP_MATCH_I2C_DRIVER: |
| 1476 | au0828_call_i2c_clients(dev, VIDIOC_DBG_S_REGISTER, reg); |
| 1477 | return 0; |
| 1478 | default: |
| 1479 | return -EINVAL; |
| 1480 | } |
| 1481 | return 0; |
| 1482 | } |
| 1483 | |
| 1484 | static int vidioc_reqbufs(struct file *file, void *priv, |
| 1485 | struct v4l2_requestbuffers *rb) |
| 1486 | { |
| 1487 | struct au0828_fh *fh = priv; |
| 1488 | struct au0828_dev *dev = fh->dev; |
| 1489 | int rc; |
| 1490 | |
| 1491 | rc = check_dev(dev); |
| 1492 | if (rc < 0) |
| 1493 | return rc; |
| 1494 | |
| 1495 | return videobuf_reqbufs(&fh->vb_vidq, rb); |
| 1496 | } |
| 1497 | |
| 1498 | static int vidioc_querybuf(struct file *file, void *priv, |
| 1499 | struct v4l2_buffer *b) |
| 1500 | { |
| 1501 | struct au0828_fh *fh = priv; |
| 1502 | struct au0828_dev *dev = fh->dev; |
| 1503 | int rc; |
| 1504 | |
| 1505 | rc = check_dev(dev); |
| 1506 | if (rc < 0) |
| 1507 | return rc; |
| 1508 | |
| 1509 | return videobuf_querybuf(&fh->vb_vidq, b); |
| 1510 | } |
| 1511 | |
| 1512 | static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) |
| 1513 | { |
| 1514 | struct au0828_fh *fh = priv; |
| 1515 | struct au0828_dev *dev = fh->dev; |
| 1516 | int rc; |
| 1517 | |
| 1518 | rc = check_dev(dev); |
| 1519 | if (rc < 0) |
| 1520 | return rc; |
| 1521 | |
| 1522 | return videobuf_qbuf(&fh->vb_vidq, b); |
| 1523 | } |
| 1524 | |
| 1525 | static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) |
| 1526 | { |
| 1527 | struct au0828_fh *fh = priv; |
| 1528 | struct au0828_dev *dev = fh->dev; |
| 1529 | int rc; |
| 1530 | |
| 1531 | rc = check_dev(dev); |
| 1532 | if (rc < 0) |
| 1533 | return rc; |
| 1534 | |
| 1535 | /* Workaround for a bug in the au0828 hardware design that sometimes |
| 1536 | results in the colorspace being inverted */ |
| 1537 | if (dev->greenscreen_detected == 1) { |
| 1538 | dprintk(1, "Detected green frame. Resetting stream...\n"); |
| 1539 | au0828_analog_stream_reset(dev); |
| 1540 | dev->greenscreen_detected = 0; |
| 1541 | } |
| 1542 | |
| 1543 | return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); |
| 1544 | } |
| 1545 | |
| 1546 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1547 | static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) |
| 1548 | { |
| 1549 | struct au0828_fh *fh = priv; |
| 1550 | |
| 1551 | return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8); |
| 1552 | } |
| 1553 | #endif |
| 1554 | |
| 1555 | static struct v4l2_file_operations au0828_v4l_fops = { |
| 1556 | .owner = THIS_MODULE, |
| 1557 | .open = au0828_v4l2_open, |
| 1558 | .release = au0828_v4l2_close, |
| 1559 | .read = au0828_v4l2_read, |
| 1560 | .poll = au0828_v4l2_poll, |
| 1561 | .mmap = au0828_v4l2_mmap, |
| 1562 | .ioctl = video_ioctl2, |
| 1563 | }; |
| 1564 | |
| 1565 | static const struct v4l2_ioctl_ops video_ioctl_ops = { |
| 1566 | .vidioc_querycap = vidioc_querycap, |
| 1567 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1568 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1569 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1570 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1571 | #ifdef VBI_NOT_YET_WORKING |
| 1572 | .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
| 1573 | .vidioc_try_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, |
| 1574 | .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, |
| 1575 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1576 | .vidioc_g_audio = vidioc_g_audio, |
| 1577 | .vidioc_s_audio = vidioc_s_audio, |
| 1578 | .vidioc_cropcap = vidioc_cropcap, |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1579 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1580 | .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, |
| 1581 | .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, |
| 1582 | .vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, |
| 1583 | #endif |
| 1584 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1585 | .vidioc_querybuf = vidioc_querybuf, |
| 1586 | .vidioc_qbuf = vidioc_qbuf, |
| 1587 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1588 | .vidioc_s_std = vidioc_s_std, |
| 1589 | .vidioc_enum_input = vidioc_enum_input, |
| 1590 | .vidioc_g_input = vidioc_g_input, |
| 1591 | .vidioc_s_input = vidioc_s_input, |
| 1592 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1593 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1594 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1595 | .vidioc_streamon = vidioc_streamon, |
| 1596 | .vidioc_streamoff = vidioc_streamoff, |
| 1597 | .vidioc_g_tuner = vidioc_g_tuner, |
| 1598 | .vidioc_s_tuner = vidioc_s_tuner, |
| 1599 | .vidioc_g_frequency = vidioc_g_frequency, |
| 1600 | .vidioc_s_frequency = vidioc_s_frequency, |
| 1601 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 1602 | .vidioc_g_register = vidioc_g_register, |
| 1603 | .vidioc_s_register = vidioc_s_register, |
| 1604 | .vidioc_g_chip_ident = vidioc_g_chip_ident, |
| 1605 | #endif |
| 1606 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1607 | .vidiocgmbuf = vidiocgmbuf, |
| 1608 | #endif |
| 1609 | }; |
| 1610 | |
| 1611 | static const struct video_device au0828_video_template = { |
| 1612 | .fops = &au0828_v4l_fops, |
| 1613 | .release = video_device_release, |
| 1614 | .ioctl_ops = &video_ioctl_ops, |
| 1615 | .minor = -1, |
Devin Heitmueller | 0ef21071 | 2009-03-11 03:00:53 -0300 | [diff] [blame] | 1616 | .tvnorms = V4L2_STD_NTSC_M, |
| 1617 | .current_norm = V4L2_STD_NTSC_M, |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1618 | }; |
| 1619 | |
| 1620 | /**************************************************************************/ |
| 1621 | |
Devin Heitmueller | fc4ce6c | 2009-03-11 03:01:00 -0300 | [diff] [blame] | 1622 | int au0828_analog_register(struct au0828_dev *dev, |
| 1623 | struct usb_interface *interface) |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1624 | { |
| 1625 | int retval = -ENOMEM; |
Devin Heitmueller | fc4ce6c | 2009-03-11 03:01:00 -0300 | [diff] [blame] | 1626 | struct usb_host_interface *iface_desc; |
| 1627 | struct usb_endpoint_descriptor *endpoint; |
| 1628 | int i; |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1629 | |
| 1630 | dprintk(1, "au0828_analog_register called!\n"); |
| 1631 | |
Devin Heitmueller | fc4ce6c | 2009-03-11 03:01:00 -0300 | [diff] [blame] | 1632 | /* set au0828 usb interface0 to as5 */ |
| 1633 | retval = usb_set_interface(dev->usbdev, |
| 1634 | interface->cur_altsetting->desc.bInterfaceNumber, 5); |
| 1635 | if (retval != 0) { |
| 1636 | printk("Failure setting usb interface0 to as5\n"); |
| 1637 | return retval; |
| 1638 | } |
| 1639 | |
| 1640 | /* Figure out which endpoint has the isoc interface */ |
| 1641 | iface_desc = interface->cur_altsetting; |
| 1642 | for(i = 0; i < iface_desc->desc.bNumEndpoints; i++){ |
| 1643 | endpoint = &iface_desc->endpoint[i].desc; |
| 1644 | if(((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && |
| 1645 | ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_ISOC)){ |
| 1646 | |
| 1647 | /* we find our isoc in endpoint */ |
| 1648 | u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); |
| 1649 | dev->max_pkt_size = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1); |
| 1650 | dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; |
| 1651 | } |
| 1652 | } |
| 1653 | if(!(dev->isoc_in_endpointaddr)) { |
| 1654 | printk("Could not locate isoc endpoint\n"); |
| 1655 | kfree(dev); |
| 1656 | return -ENODEV; |
| 1657 | } |
| 1658 | |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1659 | init_waitqueue_head(&dev->open); |
| 1660 | spin_lock_init(&dev->slock); |
| 1661 | mutex_init(&dev->lock); |
| 1662 | |
| 1663 | INIT_LIST_HEAD(&dev->vidq.active); |
| 1664 | INIT_LIST_HEAD(&dev->vidq.queued); |
| 1665 | |
| 1666 | dev->width = NTSC_STD_W; |
| 1667 | dev->height = NTSC_STD_H; |
| 1668 | dev->field_size = dev->width * dev->height; |
| 1669 | dev->frame_size = dev->field_size << 1; |
| 1670 | dev->bytesperline = dev->width << 1; |
| 1671 | dev->ctrl_ainput = 0; |
| 1672 | |
| 1673 | /* allocate and fill v4l2 video struct */ |
| 1674 | dev->vdev = video_device_alloc(); |
| 1675 | if(NULL == dev->vdev) { |
| 1676 | dprintk(1, "Can't allocate video_device.\n"); |
| 1677 | return -ENOMEM; |
| 1678 | } |
| 1679 | |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1680 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1681 | dev->vbi_dev = video_device_alloc(); |
| 1682 | if(NULL == dev->vbi_dev) { |
| 1683 | dprintk(1, "Can't allocate vbi_device.\n"); |
| 1684 | kfree(dev->vdev); |
| 1685 | return -ENOMEM; |
| 1686 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1687 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1688 | |
| 1689 | /* Fill the video capture device struct */ |
| 1690 | *dev->vdev = au0828_video_template; |
| 1691 | dev->vdev->vfl_type = VID_TYPE_CAPTURE | VID_TYPE_TUNER; |
| 1692 | dev->vdev->parent = &dev->usbdev->dev; |
| 1693 | strcpy(dev->vdev->name, "au0828a video"); |
| 1694 | |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1695 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1696 | /* Setup the VBI device */ |
| 1697 | *dev->vbi_dev = au0828_video_template; |
| 1698 | dev->vbi_dev->vfl_type = VFL_TYPE_VBI; |
| 1699 | dev->vbi_dev->parent = &dev->usbdev->dev; |
| 1700 | strcpy(dev->vbi_dev->name, "au0828a vbi"); |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1701 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1702 | |
| 1703 | list_add_tail(&dev->au0828list, &au0828_devlist); |
| 1704 | |
| 1705 | /* Register the v4l2 device */ |
| 1706 | if((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1)) != 0) { |
| 1707 | dprintk(1, "unable to register video device (error = %d).\n", retval); |
| 1708 | list_del(&dev->au0828list); |
| 1709 | video_device_release(dev->vdev); |
| 1710 | return -ENODEV; |
| 1711 | } |
| 1712 | |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1713 | #ifdef VBI_NOT_YET_WORKING |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1714 | /* Register the vbi device */ |
| 1715 | if((retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1)) != 0) { |
| 1716 | dprintk(1, "unable to register vbi device (error = %d).\n", retval); |
| 1717 | list_del(&dev->au0828list); |
| 1718 | video_device_release(dev->vbi_dev); |
| 1719 | video_device_release(dev->vdev); |
| 1720 | return -ENODEV; |
| 1721 | } |
Devin Heitmueller | 5a5a4e1 | 2009-03-11 03:00:55 -0300 | [diff] [blame] | 1722 | #endif |
Devin Heitmueller | 8b2f079 | 2009-03-11 03:00:40 -0300 | [diff] [blame] | 1723 | |
| 1724 | dprintk(1, "%s completed!\n", __FUNCTION__); |
| 1725 | |
| 1726 | return 0; |
| 1727 | } |
| 1728 | |