drivers/media/pci/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/
  35  */
  36
  37
  38 #include "budget.h"
  39 #include "ttpci-eeprom.h"
  40
  41 #define TS_WIDTH                (2 * TS_SIZE)
  42 #define TS_WIDTH_ACTIVY         TS_SIZE
  43 #define TS_WIDTH_DVBC           TS_SIZE
  44 #define TS_HEIGHT_MASK          0xf00
  45 #define TS_HEIGHT_MASK_ACTIVY   0xc00
  46 #define TS_HEIGHT_MASK_DVBC     0xe00
  47 #define TS_MIN_BUFSIZE_K        188
  48 #define TS_MAX_BUFSIZE_K        1410
  49 #define TS_MAX_BUFSIZE_K_ACTIVY 564
  50 #define TS_MAX_BUFSIZE_K_DVBC   1316
  51 #define BUFFER_WARNING_WAIT     (30*HZ)
  52
  53 int budget_debug;
  54 static int dma_buffer_size = TS_MIN_BUFSIZE_K;
  55 module_param_named(debug, budget_debug, int, 0644);
  56 module_param_named(bufsize, dma_buffer_size, int, 0444);
  57 MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
  58 MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
  59
  60 /****************************************************************************
  61  * TT budget / WinTV Nova
  62  ****************************************************************************/
  63
  64 static int stop_ts_capture(struct budget *budget)
  65 {
  66         dprintk(2, "budget: %p\n", budget);
  67
  68         saa7146_write(budget->dev, MC1, MASK_20);       // DMA3 off
  69         SAA7146_IER_DISABLE(budget->dev, MASK_10);
  70         return 0;
  71 }
  72
  73 static int start_ts_capture(struct budget *budget)
  74 {
  75         struct saa7146_dev *dev = budget->dev;
  76
  77         dprintk(2, "budget: %p\n", budget);
  78
  79         if (!budget->feeding || !budget->fe_synced)
  80                 return 0;
  81
  82         saa7146_write(dev, MC1, MASK_20);       // DMA3 off
  83
  84         memset(budget->grabbing, 0x00, budget->buffer_size);
  85
  86         saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
  87
  88         budget->ttbp = 0;
  89
  90         /*
  91          *  Signal path on the Activy:
  92          *
  93          *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
  94          *
  95          *  Since the tuner feeds 204 bytes packets into the SAA7146,
  96          *  DMA3 is configured to strip the trailing 16 FEC bytes:
  97          *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
  98          */
  99
 100         switch(budget->card->type) {
 101         case BUDGET_FS_ACTIVY:
 102                 saa7146_write(dev, DD1_INIT, 0x04000000);
 103                 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 104                 saa7146_write(dev, BRS_CTRL, 0x00000000);
 105                 break;
 106         case BUDGET_PATCH:
 107                 saa7146_write(dev, DD1_INIT, 0x00000200);
 108                 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 109                 saa7146_write(dev, BRS_CTRL, 0x60000000);
 110                 break;
 111         case BUDGET_CIN1200C_MK3:
 112         case BUDGET_KNC1C_MK3:
 113         case BUDGET_KNC1C_TDA10024:
 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         /* Ensure streamed PCI data is synced to CPU */
 199         pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
 200
 201         /* nearest lower position divisible by 188 */
 202         newdma -= newdma % 188;
 203
 204         if (newdma >= budget->buffer_size)
 205                 return;
 206
 207         budget->ttbp = newdma;
 208
 209         if (budget->feeding == 0 || newdma == olddma)
 210                 return;
 211
 212         if (newdma > olddma) {  /* no wraparound, dump olddma..newdma */
 213                 count = newdma - olddma;
 214                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 215         } else {                /* wraparound, dump olddma..buflen and 0..newdma */
 216                 count = budget->buffer_size - olddma;
 217                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 218                 count += newdma;
 219                 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
 220         }
 221
 222         if (count > budget->buffer_warning_threshold)
 223                 budget->buffer_warnings++;
 224
 225         if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
 226                 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
 227                         budget->dev->name, __func__, budget->buffer_warnings, count);
 228                 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
 229                 budget->buffer_warnings = 0;
 230         }
 231 }
 232
 233
 234 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
 235                           int uselocks, int nobusyloop)
 236 {
 237         struct saa7146_dev *saa = budget->dev;
 238         int result = 0;
 239         unsigned long flags = 0;
 240
 241         if (count > 4 || count <= 0)
 242                 return 0;
 243
 244         if (uselocks)
 245                 spin_lock_irqsave(&budget->debilock, flags);
 246
 247         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 248                 if (uselocks)
 249                         spin_unlock_irqrestore(&budget->debilock, flags);
 250                 return result;
 251         }
 252
 253         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
 254         saa7146_write(saa, DEBI_CONFIG, config);
 255         saa7146_write(saa, DEBI_PAGE, 0);
 256         saa7146_write(saa, MC2, (2 << 16) | 2);
 257
 258         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 259                 if (uselocks)
 260                         spin_unlock_irqrestore(&budget->debilock, flags);
 261                 return result;
 262         }
 263
 264         result = saa7146_read(saa, DEBI_AD);
 265         result &= (0xffffffffUL >> ((4 - count) * 8));
 266
 267         if (uselocks)
 268                 spin_unlock_irqrestore(&budget->debilock, flags);
 269
 270         return result;
 271 }
 272
 273 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
 274                            int count, u32 value, int uselocks, int nobusyloop)
 275 {
 276         struct saa7146_dev *saa = budget->dev;
 277         unsigned long flags = 0;
 278         int result;
 279
 280         if (count > 4 || count <= 0)
 281                 return 0;
 282
 283         if (uselocks)
 284                 spin_lock_irqsave(&budget->debilock, flags);
 285
 286         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 287                 if (uselocks)
 288                         spin_unlock_irqrestore(&budget->debilock, flags);
 289                 return result;
 290         }
 291
 292         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
 293         saa7146_write(saa, DEBI_CONFIG, config);
 294         saa7146_write(saa, DEBI_PAGE, 0);
 295         saa7146_write(saa, DEBI_AD, value);
 296         saa7146_write(saa, MC2, (2 << 16) | 2);
 297
 298         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 299                 if (uselocks)
 300                         spin_unlock_irqrestore(&budget->debilock, flags);
 301                 return result;
 302         }
 303
 304         if (uselocks)
 305                 spin_unlock_irqrestore(&budget->debilock, flags);
 306         return 0;
 307 }
 308
 309
 310 /****************************************************************************
 311  * DVB API SECTION
 312  ****************************************************************************/
 313
 314 static int budget_start_feed(struct dvb_demux_feed *feed)
 315 {
 316         struct dvb_demux *demux = feed->demux;
 317         struct budget *budget = (struct budget *) demux->priv;
 318         int status = 0;
 319
 320         dprintk(2, "budget: %p\n", budget);
 321
 322         if (!demux->dmx.frontend)
 323                 return -EINVAL;
 324
 325         spin_lock(&budget->feedlock);
 326         feed->pusi_seen = 0; /* have a clean section start */
 327         if (budget->feeding++ == 0)
 328                 status = start_ts_capture(budget);
 329         spin_unlock(&budget->feedlock);
 330         return status;
 331 }
 332
 333 static int budget_stop_feed(struct dvb_demux_feed *feed)
 334 {
 335         struct dvb_demux *demux = feed->demux;
 336         struct budget *budget = (struct budget *) demux->priv;
 337         int status = 0;
 338
 339         dprintk(2, "budget: %p\n", budget);
 340
 341         spin_lock(&budget->feedlock);
 342         if (--budget->feeding == 0)
 343                 status = stop_ts_capture(budget);
 344         spin_unlock(&budget->feedlock);
 345         return status;
 346 }
 347
 348 static int budget_register(struct budget *budget)
 349 {
 350         struct dvb_demux *dvbdemux = &budget->demux;
 351         int ret;
 352
 353         dprintk(2, "budget: %p\n", budget);
 354
 355         dvbdemux->priv = (void *) budget;
 356
 357         dvbdemux->filternum = 256;
 358         dvbdemux->feednum = 256;
 359         dvbdemux->start_feed = budget_start_feed;
 360         dvbdemux->stop_feed = budget_stop_feed;
 361         dvbdemux->write_to_decoder = NULL;
 362
 363         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 364                                       DMX_MEMORY_BASED_FILTERING);
 365
 366         dvb_dmx_init(&budget->demux);
 367
 368         budget->dmxdev.filternum = 256;
 369         budget->dmxdev.demux = &dvbdemux->dmx;
 370         budget->dmxdev.capabilities = 0;
 371
 372         dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
 373
 374         budget->hw_frontend.source = DMX_FRONTEND_0;
 375
 376         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 377
 378         if (ret < 0)
 379                 return ret;
 380
 381         budget->mem_frontend.source = DMX_MEMORY_FE;
 382         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 383         if (ret < 0)
 384                 return ret;
 385
 386         ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 387         if (ret < 0)
 388                 return ret;
 389
 390         dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
 391
 392         return 0;
 393 }
 394
 395 static void budget_unregister(struct budget *budget)
 396 {
 397         struct dvb_demux *dvbdemux = &budget->demux;
 398
 399         dprintk(2, "budget: %p\n", budget);
 400
 401         dvb_net_release(&budget->dvb_net);
 402
 403         dvbdemux->dmx.close(&dvbdemux->dmx);
 404         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 405         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 406
 407         dvb_dmxdev_release(&budget->dmxdev);
 408         dvb_dmx_release(&budget->demux);
 409 }
 410
 411 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 412                       struct saa7146_pci_extension_data *info,
 413                       struct module *owner, short *adapter_nums)
 414 {
 415         int ret = 0;
 416         struct budget_info *bi = info->ext_priv;
 417         int max_bufsize;
 418         int height_mask;
 419
 420         memset(budget, 0, sizeof(struct budget));
 421
 422         dprintk(2, "dev: %p, budget: %p\n", dev, budget);
 423
 424         budget->card = bi;
 425         budget->dev = (struct saa7146_dev *) dev;
 426
 427         switch(budget->card->type) {
 428         case BUDGET_FS_ACTIVY:
 429                 budget->buffer_width = TS_WIDTH_ACTIVY;
 430                 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
 431                 height_mask = TS_HEIGHT_MASK_ACTIVY;
 432                 break;
 433
 434         case BUDGET_KNC1C:
 435         case BUDGET_KNC1CP:
 436         case BUDGET_CIN1200C:
 437         case BUDGET_KNC1C_MK3:
 438         case BUDGET_KNC1C_TDA10024:
 439         case BUDGET_KNC1CP_MK3:
 440         case BUDGET_CIN1200C_MK3:
 441                 budget->buffer_width = TS_WIDTH_DVBC;
 442                 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
 443                 height_mask = TS_HEIGHT_MASK_DVBC;
 444                 break;
 445
 446         default:
 447                 budget->buffer_width = TS_WIDTH;
 448                 max_bufsize = TS_MAX_BUFSIZE_K;
 449                 height_mask = TS_HEIGHT_MASK;
 450         }
 451
 452         if (dma_buffer_size < TS_MIN_BUFSIZE_K)
 453                 dma_buffer_size = TS_MIN_BUFSIZE_K;
 454         else if (dma_buffer_size > max_bufsize)
 455                 dma_buffer_size = max_bufsize;
 456
 457         budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
 458         if (budget->buffer_height > 0xfff) {
 459                 budget->buffer_height /= 2;
 460                 budget->buffer_height &= height_mask;
 461                 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
 462         } else {
 463                 budget->buffer_height &= height_mask;
 464                 budget->buffer_size = budget->buffer_height * budget->buffer_width;
 465         }
 466         budget->buffer_warning_threshold = budget->buffer_size * 80/100;
 467         budget->buffer_warnings = 0;
 468         budget->buffer_warning_time = jiffies;
 469
 470         dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
 471                 budget->dev->name,
 472                 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
 473                 budget->buffer_width, budget->buffer_height);
 474         printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
 475
 476         ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
 477                                    owner, &budget->dev->pci->dev, adapter_nums);
 478         if (ret < 0)
 479                 return ret;
 480
 481         /* set dd1 stream a & b */
 482         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 483         saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 484         saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 485         saa7146_write(dev, DD1_INIT, 0x02000000);
 486         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 487
 488         if (bi->type != BUDGET_FS_ACTIVY)
 489                 budget->video_port = BUDGET_VIDEO_PORTB;
 490         else
 491                 budget->video_port = BUDGET_VIDEO_PORTA;
 492         spin_lock_init(&budget->feedlock);
 493         spin_lock_init(&budget->debilock);
 494
 495         /* the Siemens DVB needs this if you want to have the i2c chips
 496            get recognized before the main driver is loaded */
 497         if (bi->type != BUDGET_FS_ACTIVY)
 498                 saa7146_write(dev, GPIO_CTRL, 0x500000);        /* GPIO 3 = 1 */
 499
 500         strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
 501
 502         saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
 503         strcpy(budget->i2c_adap.name, budget->card->name);
 504
 505         if (i2c_add_adapter(&budget->i2c_adap) < 0) {
 506                 ret = -ENOMEM;
 507                 goto err_dvb_unregister;
 508         }
 509
 510         ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
 511
 512         budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
 513         if (NULL == budget->grabbing) {
 514                 ret = -ENOMEM;
 515                 goto err_del_i2c;
 516         }
 517
 518         saa7146_write(dev, PCI_BT_V1, 0x001c0000);
 519         /* upload all */
 520         saa7146_write(dev, GPIO_CTRL, 0x000000);
 521
 522         tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
 523
 524         /* frontend power on */
 525         if (bi->type != BUDGET_FS_ACTIVY)
 526                 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 527
 528         if ((ret = budget_register(budget)) == 0)
 529                 return 0; /* Everything OK */
 530
 531         /* An error occurred, cleanup resources */
 532         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 533
 534 err_del_i2c:
 535         i2c_del_adapter(&budget->i2c_adap);
 536
 537 err_dvb_unregister:
 538         dvb_unregister_adapter(&budget->dvb_adapter);
 539
 540         return ret;
 541 }
 542
 543 void ttpci_budget_init_hooks(struct budget *budget)
 544 {
 545         if (budget->dvb_frontend && !budget->read_fe_status) {
 546                 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
 547                 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
 548         }
 549 }
 550
 551 int ttpci_budget_deinit(struct budget *budget)
 552 {
 553         struct saa7146_dev *dev = budget->dev;
 554
 555         dprintk(2, "budget: %p\n", budget);
 556
 557         budget_unregister(budget);
 558
 559         tasklet_kill(&budget->vpe_tasklet);
 560
 561         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 562
 563         i2c_del_adapter(&budget->i2c_adap);
 564
 565         dvb_unregister_adapter(&budget->dvb_adapter);
 566
 567         return 0;
 568 }
 569
 570 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
 571 {
 572         struct budget *budget = (struct budget *) dev->ext_priv;
 573
 574         dprintk(8, "dev: %p, budget: %p\n", dev, budget);
 575
 576         if (*isr & MASK_10)
 577                 tasklet_schedule(&budget->vpe_tasklet);
 578 }
 579
 580 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
 581 {
 582         struct budget *budget = (struct budget *) dev->ext_priv;
 583
 584         spin_lock(&budget->feedlock);
 585         budget->video_port = video_port;
 586         if (budget->feeding) {
 587                 stop_ts_capture(budget);
 588                 start_ts_capture(budget);
 589         }
 590         spin_unlock(&budget->feedlock);
 591 }
 592
 593 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
 594 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
 595 EXPORT_SYMBOL_GPL(ttpci_budget_init);
 596 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
 597 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
 598 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
 599 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
 600 EXPORT_SYMBOL_GPL(budget_debug);
 601
 602 MODULE_LICENSE("GPL");