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
  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 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  61
  62 /****************************************************************************
  63  * TT budget / WinTV Nova
  64  ****************************************************************************/
  65
  66 static int stop_ts_capture(struct budget *budget)
  67 {
  68         dprintk(2, "budget: %p\n", budget);
  69
  70         saa7146_write(budget->dev, MC1, MASK_20);       // DMA3 off
  71         SAA7146_IER_DISABLE(budget->dev, MASK_10);
  72         return 0;
  73 }
  74
  75 static int start_ts_capture(struct budget *budget)
  76 {
  77         struct saa7146_dev *dev = budget->dev;
  78
  79         dprintk(2, "budget: %p\n", budget);
  80
  81         if (!budget->feeding || !budget->fe_synced)
  82                 return 0;
  83
  84         saa7146_write(dev, MC1, MASK_20);       // DMA3 off
  85
  86         memset(budget->grabbing, 0x00, budget->buffer_size);
  87
  88         saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
  89
  90         budget->ttbp = 0;
  91
  92         /*
  93          *  Signal path on the Activy:
  94          *
  95          *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
  96          *
  97          *  Since the tuner feeds 204 bytes packets into the SAA7146,
  98          *  DMA3 is configured to strip the trailing 16 FEC bytes:
  99          *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
 100          */
 101
 102         switch(budget->card->type) {
 103         case BUDGET_FS_ACTIVY:
 104                 saa7146_write(dev, DD1_INIT, 0x04000000);
 105                 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 106                 saa7146_write(dev, BRS_CTRL, 0x00000000);
 107                 break;
 108         case BUDGET_PATCH:
 109                 saa7146_write(dev, DD1_INIT, 0x00000200);
 110                 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 111                 saa7146_write(dev, BRS_CTRL, 0x60000000);
 112                 break;
 113         case BUDGET_CIN1200C_MK3:
 114         case BUDGET_KNC1C_MK3:
 115         case BUDGET_KNC1CP_MK3:
 116                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 117                         saa7146_write(dev, DD1_INIT, 0x06000200);
 118                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 119                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 120                 } else {
 121                         saa7146_write(dev, DD1_INIT, 0x00000600);
 122                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 123                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 124                 }
 125                 break;
 126         default:
 127                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 128                         saa7146_write(dev, DD1_INIT, 0x06000200);
 129                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 130                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 131                 } else {
 132                         saa7146_write(dev, DD1_INIT, 0x02000600);
 133                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 134                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 135                 }
 136         }
 137
 138         saa7146_write(dev, MC2, (MASK_08 | MASK_24));
 139         mdelay(10);
 140
 141         saa7146_write(dev, BASE_ODD3, 0);
 142         if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
 143                 // using odd/even buffers
 144                 saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
 145         } else {
 146                 // using a single buffer
 147                 saa7146_write(dev, BASE_EVEN3, 0);
 148         }
 149         saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
 150         saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
 151
 152         saa7146_write(dev, PITCH3, budget->buffer_width);
 153         saa7146_write(dev, NUM_LINE_BYTE3,
 154                         (budget->buffer_height << 16) | budget->buffer_width);
 155
 156         saa7146_write(dev, MC2, (MASK_04 | MASK_20));
 157
 158         SAA7146_ISR_CLEAR(budget->dev, MASK_10);        /* VPE */
 159         SAA7146_IER_ENABLE(budget->dev, MASK_10);       /* VPE */
 160         saa7146_write(dev, MC1, (MASK_04 | MASK_20));   /* DMA3 on */
 161
 162         return 0;
 163 }
 164
 165 static int budget_read_fe_status(struct dvb_frontend *fe, fe_status_t *status)
 166 {
 167         struct budget *budget = (struct budget *) fe->dvb->priv;
 168         int synced;
 169         int ret;
 170
 171         if (budget->read_fe_status)
 172                 ret = budget->read_fe_status(fe, status);
 173         else
 174                 ret = -EINVAL;
 175
 176         if (!ret) {
 177                 synced = (*status & FE_HAS_LOCK);
 178                 if (synced != budget->fe_synced) {
 179                         budget->fe_synced = synced;
 180                         spin_lock(&budget->feedlock);
 181                         if (synced)
 182                                 start_ts_capture(budget);
 183                         else
 184                                 stop_ts_capture(budget);
 185                         spin_unlock(&budget->feedlock);
 186                 }
 187         }
 188         return ret;
 189 }
 190
 191 static void vpeirq(unsigned long data)
 192 {
 193         struct budget *budget = (struct budget *) data;
 194         u8 *mem = (u8 *) (budget->grabbing);
 195         u32 olddma = budget->ttbp;
 196         u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
 197         u32 count;
 198
 199         /* Ensure streamed PCI data is synced to CPU */
 200         pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
 201
 202         /* nearest lower position divisible by 188 */
 203         newdma -= newdma % 188;
 204
 205         if (newdma >= budget->buffer_size)
 206                 return;
 207
 208         budget->ttbp = newdma;
 209
 210         if (budget->feeding == 0 || newdma == olddma)
 211                 return;
 212
 213         if (newdma > olddma) {  /* no wraparound, dump olddma..newdma */
 214                 count = newdma - olddma;
 215                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 216         } else {                /* wraparound, dump olddma..buflen and 0..newdma */
 217                 count = budget->buffer_size - olddma;
 218                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 219                 count += newdma;
 220                 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
 221         }
 222
 223         if (count > budget->buffer_warning_threshold)
 224                 budget->buffer_warnings++;
 225
 226         if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
 227                 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
 228                         budget->dev->name, __func__, budget->buffer_warnings, count);
 229                 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
 230                 budget->buffer_warnings = 0;
 231         }
 232 }
 233
 234
 235 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
 236                           int uselocks, int nobusyloop)
 237 {
 238         struct saa7146_dev *saa = budget->dev;
 239         int result = 0;
 240         unsigned long flags = 0;
 241
 242         if (count > 4 || count <= 0)
 243                 return 0;
 244
 245         if (uselocks)
 246                 spin_lock_irqsave(&budget->debilock, flags);
 247
 248         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 249                 if (uselocks)
 250                         spin_unlock_irqrestore(&budget->debilock, flags);
 251                 return result;
 252         }
 253
 254         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
 255         saa7146_write(saa, DEBI_CONFIG, config);
 256         saa7146_write(saa, DEBI_PAGE, 0);
 257         saa7146_write(saa, MC2, (2 << 16) | 2);
 258
 259         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 260                 if (uselocks)
 261                         spin_unlock_irqrestore(&budget->debilock, flags);
 262                 return result;
 263         }
 264
 265         result = saa7146_read(saa, DEBI_AD);
 266         result &= (0xffffffffUL >> ((4 - count) * 8));
 267
 268         if (uselocks)
 269                 spin_unlock_irqrestore(&budget->debilock, flags);
 270
 271         return result;
 272 }
 273
 274 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
 275                            int count, u32 value, int uselocks, int nobusyloop)
 276 {
 277         struct saa7146_dev *saa = budget->dev;
 278         unsigned long flags = 0;
 279         int result;
 280
 281         if (count > 4 || count <= 0)
 282                 return 0;
 283
 284         if (uselocks)
 285                 spin_lock_irqsave(&budget->debilock, flags);
 286
 287         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 288                 if (uselocks)
 289                         spin_unlock_irqrestore(&budget->debilock, flags);
 290                 return result;
 291         }
 292
 293         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
 294         saa7146_write(saa, DEBI_CONFIG, config);
 295         saa7146_write(saa, DEBI_PAGE, 0);
 296         saa7146_write(saa, DEBI_AD, value);
 297         saa7146_write(saa, MC2, (2 << 16) | 2);
 298
 299         if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
 300                 if (uselocks)
 301                         spin_unlock_irqrestore(&budget->debilock, flags);
 302                 return result;
 303         }
 304
 305         if (uselocks)
 306                 spin_unlock_irqrestore(&budget->debilock, flags);
 307         return 0;
 308 }
 309
 310
 311 /****************************************************************************
 312  * DVB API SECTION
 313  ****************************************************************************/
 314
 315 static int budget_start_feed(struct dvb_demux_feed *feed)
 316 {
 317         struct dvb_demux *demux = feed->demux;
 318         struct budget *budget = (struct budget *) demux->priv;
 319         int status = 0;
 320
 321         dprintk(2, "budget: %p\n", budget);
 322
 323         if (!demux->dmx.frontend)
 324                 return -EINVAL;
 325
 326         spin_lock(&budget->feedlock);
 327         feed->pusi_seen = 0; /* have a clean section start */
 328         if (budget->feeding++ == 0)
 329                 status = start_ts_capture(budget);
 330         spin_unlock(&budget->feedlock);
 331         return status;
 332 }
 333
 334 static int budget_stop_feed(struct dvb_demux_feed *feed)
 335 {
 336         struct dvb_demux *demux = feed->demux;
 337         struct budget *budget = (struct budget *) demux->priv;
 338         int status = 0;
 339
 340         dprintk(2, "budget: %p\n", budget);
 341
 342         spin_lock(&budget->feedlock);
 343         if (--budget->feeding == 0)
 344                 status = stop_ts_capture(budget);
 345         spin_unlock(&budget->feedlock);
 346         return status;
 347 }
 348
 349 static int budget_register(struct budget *budget)
 350 {
 351         struct dvb_demux *dvbdemux = &budget->demux;
 352         int ret;
 353
 354         dprintk(2, "budget: %p\n", budget);
 355
 356         dvbdemux->priv = (void *) budget;
 357
 358         dvbdemux->filternum = 256;
 359         dvbdemux->feednum = 256;
 360         dvbdemux->start_feed = budget_start_feed;
 361         dvbdemux->stop_feed = budget_stop_feed;
 362         dvbdemux->write_to_decoder = NULL;
 363
 364         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 365                                       DMX_MEMORY_BASED_FILTERING);
 366
 367         dvb_dmx_init(&budget->demux);
 368
 369         budget->dmxdev.filternum = 256;
 370         budget->dmxdev.demux = &dvbdemux->dmx;
 371         budget->dmxdev.capabilities = 0;
 372
 373         dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
 374
 375         budget->hw_frontend.source = DMX_FRONTEND_0;
 376
 377         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 378
 379         if (ret < 0)
 380                 return ret;
 381
 382         budget->mem_frontend.source = DMX_MEMORY_FE;
 383         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 384         if (ret < 0)
 385                 return ret;
 386
 387         ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 388         if (ret < 0)
 389                 return ret;
 390
 391         dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
 392
 393         return 0;
 394 }
 395
 396 static void budget_unregister(struct budget *budget)
 397 {
 398         struct dvb_demux *dvbdemux = &budget->demux;
 399
 400         dprintk(2, "budget: %p\n", budget);
 401
 402         dvb_net_release(&budget->dvb_net);
 403
 404         dvbdemux->dmx.close(&dvbdemux->dmx);
 405         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 406         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 407
 408         dvb_dmxdev_release(&budget->dmxdev);
 409         dvb_dmx_release(&budget->demux);
 410 }
 411
 412 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 413                       struct saa7146_pci_extension_data *info,
 414                       struct module *owner)
 415 {
 416         int ret = 0;
 417         struct budget_info *bi = info->ext_priv;
 418         int max_bufsize;
 419         int height_mask;
 420
 421         memset(budget, 0, sizeof(struct budget));
 422
 423         dprintk(2, "dev: %p, budget: %p\n", dev, budget);
 424
 425         budget->card = bi;
 426         budget->dev = (struct saa7146_dev *) dev;
 427
 428         switch(budget->card->type) {
 429         case BUDGET_FS_ACTIVY:
 430                 budget->buffer_width = TS_WIDTH_ACTIVY;
 431                 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
 432                 height_mask = TS_HEIGHT_MASK_ACTIVY;
 433                 break;
 434
 435         case BUDGET_KNC1C:
 436         case BUDGET_KNC1CP:
 437         case BUDGET_CIN1200C:
 438         case BUDGET_KNC1C_MK3:
 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_nr);
 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         budget->i2c_adap.class = I2C_CLASS_TV_DIGITAL;
 501
 502         strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
 503
 504         saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
 505         strcpy(budget->i2c_adap.name, budget->card->name);
 506
 507         if (i2c_add_adapter(&budget->i2c_adap) < 0) {
 508                 ret = -ENOMEM;
 509                 goto err_dvb_unregister;
 510         }
 511
 512         ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
 513
 514         budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
 515         if (NULL == budget->grabbing) {
 516                 ret = -ENOMEM;
 517                 goto err_del_i2c;
 518         }
 519
 520         saa7146_write(dev, PCI_BT_V1, 0x001c0000);
 521         /* upload all */
 522         saa7146_write(dev, GPIO_CTRL, 0x000000);
 523
 524         tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
 525
 526         /* frontend power on */
 527         if (bi->type != BUDGET_FS_ACTIVY)
 528                 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 529
 530         if ((ret = budget_register(budget)) == 0)
 531                 return 0; /* Everything OK */
 532
 533         /* An error occurred, cleanup resources */
 534         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 535
 536 err_del_i2c:
 537         i2c_del_adapter(&budget->i2c_adap);
 538
 539 err_dvb_unregister:
 540         dvb_unregister_adapter(&budget->dvb_adapter);
 541
 542         return ret;
 543 }
 544
 545 void ttpci_budget_init_hooks(struct budget *budget)
 546 {
 547         if (budget->dvb_frontend && !budget->read_fe_status) {
 548                 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
 549                 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
 550         }
 551 }
 552
 553 int ttpci_budget_deinit(struct budget *budget)
 554 {
 555         struct saa7146_dev *dev = budget->dev;
 556
 557         dprintk(2, "budget: %p\n", budget);
 558
 559         budget_unregister(budget);
 560
 561         tasklet_kill(&budget->vpe_tasklet);
 562
 563         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 564
 565         i2c_del_adapter(&budget->i2c_adap);
 566
 567         dvb_unregister_adapter(&budget->dvb_adapter);
 568
 569         return 0;
 570 }
 571
 572 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
 573 {
 574         struct budget *budget = (struct budget *) dev->ext_priv;
 575
 576         dprintk(8, "dev: %p, budget: %p\n", dev, budget);
 577
 578         if (*isr & MASK_10)
 579                 tasklet_schedule(&budget->vpe_tasklet);
 580 }
 581
 582 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
 583 {
 584         struct budget *budget = (struct budget *) dev->ext_priv;
 585
 586         spin_lock(&budget->feedlock);
 587         budget->video_port = video_port;
 588         if (budget->feeding) {
 589                 stop_ts_capture(budget);
 590                 start_ts_capture(budget);
 591         }
 592         spin_unlock(&budget->feedlock);
 593 }
 594
 595 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
 596 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
 597 EXPORT_SYMBOL_GPL(ttpci_budget_init);
 598 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
 599 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
 600 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
 601 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
 602 EXPORT_SYMBOL_GPL(budget_debug);
 603
 604 MODULE_LICENSE("GPL");