git.oblomov.eu Git - linux-2.6/blob - drivers/media/dvb/ttpci/budget-core.c

   1 /*
   2  * budget-core.c: driver for the SAA7146 based Budget DVB cards
   3  *
   4  * Compiled from various sources by Michael Hunold <michael@mihu.de>
   5  *
   6  * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
   7  *
   8  * Copyright (C) 1999-2002 Ralph  Metzler
   9  *                       & Marcus Metzler for convergence integrated media GmbH
  10  *
  11  * 26feb2004 Support for FS Activy Card (Grundig tuner) by
  12  *           Michael Dreher <michael@5dot1.de>,
  13  *           Oliver Endriss <o.endriss@gmx.de>,
  14  *           Andreas 'randy' Weinberger
  15  *
  16  * This program is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU General Public License
  18  * as published by the Free Software Foundation; either version 2
  19  * of the License, or (at your option) any later version.
  20  *
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  31  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  32  *
  33  *
  34  * the project's page is at http://www.linuxtv.org/dvb/
  35  */
  36
  37 #include <linux/moduleparam.h>
  38
  39 #include "budget.h"
  40 #include "ttpci-eeprom.h"
  41
  42 #define TS_WIDTH                (2 * TS_SIZE)
  43 #define TS_WIDTH_ACTIVY         TS_SIZE
  44 #define TS_WIDTH_DVBC           TS_SIZE
  45 #define TS_HEIGHT_MASK          0xf00
  46 #define TS_HEIGHT_MASK_ACTIVY   0xc00
  47 #define TS_HEIGHT_MASK_DVBC     0xe00
  48 #define TS_MIN_BUFSIZE_K        188
  49 #define TS_MAX_BUFSIZE_K        1410
  50 #define TS_MAX_BUFSIZE_K_ACTIVY 564
  51 #define TS_MAX_BUFSIZE_K_DVBC   1316
  52 #define BUFFER_WARNING_WAIT     (30*HZ)
  53
  54 int budget_debug;
  55 static int dma_buffer_size = TS_MIN_BUFSIZE_K;
  56 module_param_named(debug, budget_debug, int, 0644);
  57 module_param_named(bufsize, dma_buffer_size, int, 0444);
  58 MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
  59 MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
  60
  61 /****************************************************************************
  62  * TT budget / WinTV Nova
  63  ****************************************************************************/
  64
  65 static int stop_ts_capture(struct budget *budget)
  66 {
  67         dprintk(2, "budget: %p\n", budget);
  68
  69         saa7146_write(budget->dev, MC1, MASK_20);       // DMA3 off
  70         SAA7146_IER_DISABLE(budget->dev, MASK_10);
  71         return 0;
  72 }
  73
  74 static int start_ts_capture(struct budget *budget)
  75 {
  76         struct saa7146_dev *dev = budget->dev;
  77
  78         dprintk(2, "budget: %p\n", budget);
  79
  80         if (!budget->feeding || !budget->fe_synced)
  81                 return 0;
  82
  83         saa7146_write(dev, MC1, MASK_20);       // DMA3 off
  84
  85         memset(budget->grabbing, 0x00, budget->buffer_size);
  86
  87         saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
  88
  89         budget->ttbp = 0;
  90
  91         /*
  92          *  Signal path on the Activy:
  93          *
  94          *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
  95          *
  96          *  Since the tuner feeds 204 bytes packets into the SAA7146,
  97          *  DMA3 is configured to strip the trailing 16 FEC bytes:
  98          *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
  99          */
 100
 101         switch(budget->card->type) {
 102         case BUDGET_FS_ACTIVY:
 103                 saa7146_write(dev, DD1_INIT, 0x04000000);
 104                 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 105                 saa7146_write(dev, BRS_CTRL, 0x00000000);
 106                 break;
 107         case BUDGET_PATCH:
 108                 saa7146_write(dev, DD1_INIT, 0x00000200);
 109                 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 110                 saa7146_write(dev, BRS_CTRL, 0x60000000);
 111                 break;
 112         case BUDGET_CIN1200C_MK3:
 113         case BUDGET_KNC1C_MK3:
 114         case BUDGET_KNC1CP_MK3:
 115                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 116                         saa7146_write(dev, DD1_INIT, 0x06000200);
 117                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 118                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 119                 } else {
 120                         saa7146_write(dev, DD1_INIT, 0x00000600);
 121                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 122                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 123                 }
 124                 break;
 125         default:
 126                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 127                         saa7146_write(dev, DD1_INIT, 0x06000200);
 128                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 129                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 130                 } else {
 131                         saa7146_write(dev, DD1_INIT, 0x02000600);
 132                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 133                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 134                 }
 135         }
 136
 137         saa7146_write(dev, MC2, (MASK_08 | MASK_24));
 138         mdelay(10);
 139
 140         saa7146_write(dev, BASE_ODD3, 0);
 141         if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
 142                 // using odd/even buffers
 143                 saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
 144         } else {
 145                 // using a single buffer
 146                 saa7146_write(dev, BASE_EVEN3, 0);
 147         }
 148         saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
 149         saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
 150
 151         saa7146_write(dev, PITCH3, budget->buffer_width);
 152         saa7146_write(dev, NUM_LINE_BYTE3,
 153                         (budget->buffer_height << 16) | budget->buffer_width);
 154
 155         saa7146_write(dev, MC2, (MASK_04 | MASK_20));
 156
 157         SAA7146_ISR_CLEAR(budget->dev, MASK_10);        /* VPE */
 158         SAA7146_IER_ENABLE(budget->dev, MASK_10);       /* VPE */
 159         saa7146_write(dev, MC1, (MASK_04 | MASK_20));   /* DMA3 on */
 160
 161         return 0;
 162 }
 163
 164 static int budget_read_fe_status(struct dvb_frontend *fe, fe_status_t *status)
 165 {
 166         struct budget *budget = (struct budget *) fe->dvb->priv;
 167         int synced;
 168         int ret;
 169
 170         if (budget->read_fe_status)
 171                 ret = budget->read_fe_status(fe, status);
 172         else
 173                 ret = -EINVAL;
 174
 175         if (!ret) {
 176                 synced = (*status & FE_HAS_LOCK);
 177                 if (synced != budget->fe_synced) {
 178                         budget->fe_synced = synced;
 179                         spin_lock(&budget->feedlock);
 180                         if (synced)
 181                                 start_ts_capture(budget);
 182                         else
 183                                 stop_ts_capture(budget);
 184                         spin_unlock(&budget->feedlock);
 185                 }
 186         }
 187         return ret;
 188 }
 189
 190 static void vpeirq(unsigned long data)
 191 {
 192         struct budget *budget = (struct budget *) data;
 193         u8 *mem = (u8 *) (budget->grabbing);
 194         u32 olddma = budget->ttbp;
 195         u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
 196         u32 count;
 197
 198         /* nearest lower position divisible by 188 */
 199         newdma -= newdma % 188;
 200
 201         if (newdma >= budget->buffer_size)
 202                 return;
 203
 204         budget->ttbp = newdma;
 205
 206         if (budget->feeding == 0 || newdma == olddma)
 207                 return;
 208
 209         if (newdma > olddma) {  /* no wraparound, dump olddma..newdma */
 210                 count = newdma - olddma;
 211                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 212         } else {                /* wraparound, dump olddma..buflen and 0..newdma */
 213                 count = budget->buffer_size - olddma;
 214                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 215                 count += newdma;
 216                 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
 217         }
 218
 219         if (count > budget->buffer_warning_threshold)
 220                 budget->buffer_warnings++;
 221
 222         if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
 223                 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
 224                         budget->dev->name, __FUNCTION__, budget->buffer_warnings, count);
 225                 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
 226                 budget->buffer_warnings = 0;
 227         }
 228 }
 229
 230
 231 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
 232                           int uselocks, int nobusyloop)
 233 {
 234         struct saa7146_dev *saa = budget->dev;
 235         int result = 0;
 236         unsigned long flags = 0;
 237
 238         if (count > 4 || count <= 0)
 239                 return 0;
 240
 241         if (uselocks)
 242                 spin_lock_irqsave(&budget->debilock, flags);
 243
 244         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 245                 if (uselocks)
 246                         spin_unlock_irqrestore(&budget->debilock, flags);
 247                 return result;
 248         }
 249
 250         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
 251         saa7146_write(saa, DEBI_CONFIG, config);
 252         saa7146_write(saa, DEBI_PAGE, 0);
 253         saa7146_write(saa, MC2, (2 << 16) | 2);
 254
 255         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 256                 if (uselocks)
 257                         spin_unlock_irqrestore(&budget->debilock, flags);
 258                 return result;
 259         }
 260
 261         result = saa7146_read(saa, DEBI_AD);
 262         result &= (0xffffffffUL >> ((4 - count) * 8));
 263
 264         if (uselocks)
 265                 spin_unlock_irqrestore(&budget->debilock, flags);
 266
 267         return result;
 268 }
 269
 270 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
 271                            int count, u32 value, int uselocks, int nobusyloop)
 272 {
 273         struct saa7146_dev *saa = budget->dev;
 274         unsigned long flags = 0;
 275         int result;
 276
 277         if (count > 4 || count <= 0)
 278                 return 0;
 279
 280         if (uselocks)
 281                 spin_lock_irqsave(&budget->debilock, flags);
 282
 283         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 284                 if (uselocks)
 285                         spin_unlock_irqrestore(&budget->debilock, flags);
 286                 return result;
 287         }
 288
 289         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
 290         saa7146_write(saa, DEBI_CONFIG, config);
 291         saa7146_write(saa, DEBI_PAGE, 0);
 292         saa7146_write(saa, DEBI_AD, value);
 293         saa7146_write(saa, MC2, (2 << 16) | 2);
 294
 295         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 296                 if (uselocks)
 297                         spin_unlock_irqrestore(&budget->debilock, flags);
 298                 return result;
 299         }
 300
 301         if (uselocks)
 302                 spin_unlock_irqrestore(&budget->debilock, flags);
 303         return 0;
 304 }
 305
 306
 307 /****************************************************************************
 308  * DVB API SECTION
 309  ****************************************************************************/
 310
 311 static int budget_start_feed(struct dvb_demux_feed *feed)
 312 {
 313         struct dvb_demux *demux = feed->demux;
 314         struct budget *budget = (struct budget *) demux->priv;
 315         int status = 0;
 316
 317         dprintk(2, "budget: %p\n", budget);
 318
 319         if (!demux->dmx.frontend)
 320                 return -EINVAL;
 321
 322         spin_lock(&budget->feedlock);
 323         feed->pusi_seen = 0; /* have a clean section start */
 324         if (budget->feeding++ == 0)
 325                 status = start_ts_capture(budget);
 326         spin_unlock(&budget->feedlock);
 327         return status;
 328 }
 329
 330 static int budget_stop_feed(struct dvb_demux_feed *feed)
 331 {
 332         struct dvb_demux *demux = feed->demux;
 333         struct budget *budget = (struct budget *) demux->priv;
 334         int status = 0;
 335
 336         dprintk(2, "budget: %p\n", budget);
 337
 338         spin_lock(&budget->feedlock);
 339         if (--budget->feeding == 0)
 340                 status = stop_ts_capture(budget);
 341         spin_unlock(&budget->feedlock);
 342         return status;
 343 }
 344
 345 static int budget_register(struct budget *budget)
 346 {
 347         struct dvb_demux *dvbdemux = &budget->demux;
 348         int ret;
 349
 350         dprintk(2, "budget: %p\n", budget);
 351
 352         dvbdemux->priv = (void *) budget;
 353
 354         dvbdemux->filternum = 256;
 355         dvbdemux->feednum = 256;
 356         dvbdemux->start_feed = budget_start_feed;
 357         dvbdemux->stop_feed = budget_stop_feed;
 358         dvbdemux->write_to_decoder = NULL;
 359
 360         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 361                                       DMX_MEMORY_BASED_FILTERING);
 362
 363         dvb_dmx_init(&budget->demux);
 364
 365         budget->dmxdev.filternum = 256;
 366         budget->dmxdev.demux = &dvbdemux->dmx;
 367         budget->dmxdev.capabilities = 0;
 368
 369         dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
 370
 371         budget->hw_frontend.source = DMX_FRONTEND_0;
 372
 373         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 374
 375         if (ret < 0)
 376                 return ret;
 377
 378         budget->mem_frontend.source = DMX_MEMORY_FE;
 379         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 380         if (ret < 0)
 381                 return ret;
 382
 383         ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 384         if (ret < 0)
 385                 return ret;
 386
 387         dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
 388
 389         return 0;
 390 }
 391
 392 static void budget_unregister(struct budget *budget)
 393 {
 394         struct dvb_demux *dvbdemux = &budget->demux;
 395
 396         dprintk(2, "budget: %p\n", budget);
 397
 398         dvb_net_release(&budget->dvb_net);
 399
 400         dvbdemux->dmx.close(&dvbdemux->dmx);
 401         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 402         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 403
 404         dvb_dmxdev_release(&budget->dmxdev);
 405         dvb_dmx_release(&budget->demux);
 406 }
 407
 408 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 409                       struct saa7146_pci_extension_data *info,
 410                       struct module *owner)
 411 {
 412         int ret = 0;
 413         struct budget_info *bi = info->ext_priv;
 414         int max_bufsize;
 415         int height_mask;
 416
 417         memset(budget, 0, sizeof(struct budget));
 418
 419         dprintk(2, "dev: %p, budget: %p\n", dev, budget);
 420
 421         budget->card = bi;
 422         budget->dev = (struct saa7146_dev *) dev;
 423
 424         switch(budget->card->type) {
 425         case BUDGET_FS_ACTIVY:
 426                 budget->buffer_width = TS_WIDTH_ACTIVY;
 427                 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
 428                 height_mask = TS_HEIGHT_MASK_ACTIVY;
 429                 break;
 430
 431         case BUDGET_KNC1C:
 432         case BUDGET_KNC1CP:
 433         case BUDGET_CIN1200C:
 434         case BUDGET_KNC1C_MK3:
 435         case BUDGET_KNC1CP_MK3:
 436         case BUDGET_CIN1200C_MK3:
 437                 budget->buffer_width = TS_WIDTH_DVBC;
 438                 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
 439                 height_mask = TS_HEIGHT_MASK_DVBC;
 440                 break;
 441
 442         default:
 443                 budget->buffer_width = TS_WIDTH;
 444                 max_bufsize = TS_MAX_BUFSIZE_K;
 445                 height_mask = TS_HEIGHT_MASK;
 446         }
 447
 448         if (dma_buffer_size < TS_MIN_BUFSIZE_K)
 449                 dma_buffer_size = TS_MIN_BUFSIZE_K;
 450         else if (dma_buffer_size > max_bufsize)
 451                 dma_buffer_size = max_bufsize;
 452
 453         budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
 454         if (budget->buffer_height > 0xfff) {
 455                 budget->buffer_height /= 2;
 456                 budget->buffer_height &= height_mask;
 457                 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
 458         } else {
 459                 budget->buffer_height &= height_mask;
 460                 budget->buffer_size = budget->buffer_height * budget->buffer_width;
 461         }
 462         budget->buffer_warning_threshold = budget->buffer_size * 80/100;
 463         budget->buffer_warnings = 0;
 464         budget->buffer_warning_time = jiffies;
 465
 466         dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
 467                 budget->dev->name,
 468                 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
 469                 budget->buffer_width, budget->buffer_height);
 470         printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
 471
 472         if ((ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name, owner, &budget->dev->pci->dev)) < 0) {
 473                 return ret;
 474         }
 475
 476         /* set dd1 stream a & b */
 477         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 478         saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 479         saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 480         saa7146_write(dev, DD1_INIT, 0x02000000);
 481         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 482
 483         if (bi->type != BUDGET_FS_ACTIVY)
 484                 budget->video_port = BUDGET_VIDEO_PORTB;
 485         else
 486                 budget->video_port = BUDGET_VIDEO_PORTA;
 487         spin_lock_init(&budget->feedlock);
 488         spin_lock_init(&budget->debilock);
 489
 490         /* the Siemens DVB needs this if you want to have the i2c chips
 491            get recognized before the main driver is loaded */
 492         if (bi->type != BUDGET_FS_ACTIVY)
 493                 saa7146_write(dev, GPIO_CTRL, 0x500000);        /* GPIO 3 = 1 */
 494
 495 #ifdef I2C_ADAP_CLASS_TV_DIGITAL
 496         budget->i2c_adap.class = I2C_ADAP_CLASS_TV_DIGITAL;
 497 #else
 498         budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL;
 499 #endif
 500
 501         strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
 502
 503         saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
 504         strcpy(budget->i2c_adap.name, budget->card->name);
 505
 506         if (i2c_add_adapter(&budget->i2c_adap) < 0) {
 507                 dvb_unregister_adapter(&budget->dvb_adapter);
 508                 return -ENOMEM;
 509         }
 510
 511         ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
 512
 513         if (NULL ==
 514             (budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt))) {
 515                 ret = -ENOMEM;
 516                 goto err;
 517         }
 518
 519         saa7146_write(dev, PCI_BT_V1, 0x001c0000);
 520         /* upload all */
 521         saa7146_write(dev, GPIO_CTRL, 0x000000);
 522
 523         tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
 524
 525         /* frontend power on */
 526         if (bi->type != BUDGET_FS_ACTIVY)
 527                 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 528
 529         if (budget_register(budget) == 0) {
 530                 return 0;
 531         }
 532 err:
 533         i2c_del_adapter(&budget->i2c_adap);
 534
 535         vfree(budget->grabbing);
 536
 537         dvb_unregister_adapter(&budget->dvb_adapter);
 538
 539         return ret;
 540 }
 541
 542 void ttpci_budget_init_hooks(struct budget *budget)
 543 {
 544         if (budget->dvb_frontend && !budget->read_fe_status) {
 545                 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
 546                 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
 547         }
 548 }
 549
 550 int ttpci_budget_deinit(struct budget *budget)
 551 {
 552         struct saa7146_dev *dev = budget->dev;
 553
 554         dprintk(2, "budget: %p\n", budget);
 555
 556         budget_unregister(budget);
 557
 558         i2c_del_adapter(&budget->i2c_adap);
 559
 560         dvb_unregister_adapter(&budget->dvb_adapter);
 561
 562         tasklet_kill(&budget->vpe_tasklet);
 563
 564         saa7146_pgtable_free(dev->pci, &budget->pt);
 565
 566         vfree(budget->grabbing);
 567
 568         return 0;
 569 }
 570
 571 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
 572 {
 573         struct budget *budget = (struct budget *) dev->ext_priv;
 574
 575         dprintk(8, "dev: %p, budget: %p\n", dev, budget);
 576
 577         if (*isr & MASK_10)
 578                 tasklet_schedule(&budget->vpe_tasklet);
 579 }
 580
 581 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
 582 {
 583         struct budget *budget = (struct budget *) dev->ext_priv;
 584
 585         spin_lock(&budget->feedlock);
 586         budget->video_port = video_port;
 587         if (budget->feeding) {
 588                 stop_ts_capture(budget);
 589                 start_ts_capture(budget);
 590         }
 591         spin_unlock(&budget->feedlock);
 592 }
 593
 594 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
 595 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
 596 EXPORT_SYMBOL_GPL(ttpci_budget_init);
 597 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
 598 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
 599 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
 600 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
 601 EXPORT_SYMBOL_GPL(budget_debug);
 602
 603 MODULE_LICENSE("GPL");