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  * To obtain the license, point your browser to
  28  * http://www.gnu.org/copyleft/gpl.html
  29  *
  30  *
  31  * the project's page is at https://linuxtv.org
  32  */
  33
  34
  35 #include "budget.h"
  36 #include "ttpci-eeprom.h"
  37
  38 #define TS_WIDTH                (2 * TS_SIZE)
  39 #define TS_WIDTH_ACTIVY         TS_SIZE
  40 #define TS_WIDTH_DVBC           TS_SIZE
  41 #define TS_HEIGHT_MASK          0xf00
  42 #define TS_HEIGHT_MASK_ACTIVY   0xc00
  43 #define TS_HEIGHT_MASK_DVBC     0xe00
  44 #define TS_MIN_BUFSIZE_K        188
  45 #define TS_MAX_BUFSIZE_K        1410
  46 #define TS_MAX_BUFSIZE_K_ACTIVY 564
  47 #define TS_MAX_BUFSIZE_K_DVBC   1316
  48 #define BUFFER_WARNING_WAIT     (30*HZ)
  49
  50 int budget_debug;
  51 static int dma_buffer_size = TS_MIN_BUFSIZE_K;
  52 module_param_named(debug, budget_debug, int, 0644);
  53 module_param_named(bufsize, dma_buffer_size, int, 0444);
  54 MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
  55 MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
  56
  57 /****************************************************************************
  58  * TT budget / WinTV Nova
  59  ****************************************************************************/
  60
  61 static int stop_ts_capture(struct budget *budget)
  62 {
  63         dprintk(2, "budget: %p\n", budget);
  64
  65         saa7146_write(budget->dev, MC1, MASK_20);       // DMA3 off
  66         SAA7146_IER_DISABLE(budget->dev, MASK_10);
  67         return 0;
  68 }
  69
  70 static int start_ts_capture(struct budget *budget)
  71 {
  72         struct saa7146_dev *dev = budget->dev;
  73
  74         dprintk(2, "budget: %p\n", budget);
  75
  76         if (!budget->feeding || !budget->fe_synced)
  77                 return 0;
  78
  79         saa7146_write(dev, MC1, MASK_20);       // DMA3 off
  80
  81         memset(budget->grabbing, 0x00, budget->buffer_size);
  82
  83         saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
  84
  85         budget->ttbp = 0;
  86
  87         /*
  88          *  Signal path on the Activy:
  89          *
  90          *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
  91          *
  92          *  Since the tuner feeds 204 bytes packets into the SAA7146,
  93          *  DMA3 is configured to strip the trailing 16 FEC bytes:
  94          *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
  95          */
  96
  97         switch(budget->card->type) {
  98         case BUDGET_FS_ACTIVY:
  99                 saa7146_write(dev, DD1_INIT, 0x04000000);
 100                 saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 101                 saa7146_write(dev, BRS_CTRL, 0x00000000);
 102                 break;
 103         case BUDGET_PATCH:
 104                 saa7146_write(dev, DD1_INIT, 0x00000200);
 105                 saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 106                 saa7146_write(dev, BRS_CTRL, 0x60000000);
 107                 break;
 108         case BUDGET_CIN1200C_MK3:
 109         case BUDGET_KNC1C_MK3:
 110         case BUDGET_KNC1C_TDA10024:
 111         case BUDGET_KNC1CP_MK3:
 112                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 113                         saa7146_write(dev, DD1_INIT, 0x06000200);
 114                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 115                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 116                 } else {
 117                         saa7146_write(dev, DD1_INIT, 0x00000600);
 118                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 119                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 120                 }
 121                 break;
 122         default:
 123                 if (budget->video_port == BUDGET_VIDEO_PORTA) {
 124                         saa7146_write(dev, DD1_INIT, 0x06000200);
 125                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 126                         saa7146_write(dev, BRS_CTRL, 0x00000000);
 127                 } else {
 128                         saa7146_write(dev, DD1_INIT, 0x02000600);
 129                         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 130                         saa7146_write(dev, BRS_CTRL, 0x60000000);
 131                 }
 132         }
 133
 134         saa7146_write(dev, MC2, (MASK_08 | MASK_24));
 135         mdelay(10);
 136
 137         saa7146_write(dev, BASE_ODD3, 0);
 138         if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
 139                 // using odd/even buffers
 140                 saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
 141         } else {
 142                 // using a single buffer
 143                 saa7146_write(dev, BASE_EVEN3, 0);
 144         }
 145         saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
 146         saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);
 147
 148         saa7146_write(dev, PITCH3, budget->buffer_width);
 149         saa7146_write(dev, NUM_LINE_BYTE3,
 150                         (budget->buffer_height << 16) | budget->buffer_width);
 151
 152         saa7146_write(dev, MC2, (MASK_04 | MASK_20));
 153
 154         SAA7146_ISR_CLEAR(budget->dev, MASK_10);        /* VPE */
 155         SAA7146_IER_ENABLE(budget->dev, MASK_10);       /* VPE */
 156         saa7146_write(dev, MC1, (MASK_04 | MASK_20));   /* DMA3 on */
 157
 158         return 0;
 159 }
 160
 161 static int budget_read_fe_status(struct dvb_frontend *fe,
 162                                  enum fe_status *status)
 163 {
 164         struct budget *budget = (struct budget *) fe->dvb->priv;
 165         int synced;
 166         int ret;
 167
 168         if (budget->read_fe_status)
 169                 ret = budget->read_fe_status(fe, status);
 170         else
 171                 ret = -EINVAL;
 172
 173         if (!ret) {
 174                 synced = (*status & FE_HAS_LOCK);
 175                 if (synced != budget->fe_synced) {
 176                         budget->fe_synced = synced;
 177                         spin_lock(&budget->feedlock);
 178                         if (synced)
 179                                 start_ts_capture(budget);
 180                         else
 181                                 stop_ts_capture(budget);
 182                         spin_unlock(&budget->feedlock);
 183                 }
 184         }
 185         return ret;
 186 }
 187
 188 static void vpeirq(unsigned long data)
 189 {
 190         struct budget *budget = (struct budget *) data;
 191         u8 *mem = (u8 *) (budget->grabbing);
 192         u32 olddma = budget->ttbp;
 193         u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
 194         u32 count;
 195
 196         /* Ensure streamed PCI data is synced to CPU */
 197         pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
 198
 199         /* nearest lower position divisible by 188 */
 200         newdma -= newdma % 188;
 201
 202         if (newdma >= budget->buffer_size)
 203                 return;
 204
 205         budget->ttbp = newdma;
 206
 207         if (budget->feeding == 0 || newdma == olddma)
 208                 return;
 209
 210         if (newdma > olddma) {  /* no wraparound, dump olddma..newdma */
 211                 count = newdma - olddma;
 212                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 213         } else {                /* wraparound, dump olddma..buflen and 0..newdma */
 214                 count = budget->buffer_size - olddma;
 215                 dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
 216                 count += newdma;
 217                 dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
 218         }
 219
 220         if (count > budget->buffer_warning_threshold)
 221                 budget->buffer_warnings++;
 222
 223         if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
 224                 printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
 225                         budget->dev->name, __func__, budget->buffer_warnings, count);
 226                 budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
 227                 budget->buffer_warnings = 0;
 228         }
 229 }
 230
 231
 232 static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
 233                 int addr, int count, int nobusyloop)
 234 {
 235         struct saa7146_dev *saa = budget->dev;
 236         int result;
 237
 238         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 239         if (result < 0)
 240                 return result;
 241
 242         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
 243         saa7146_write(saa, DEBI_CONFIG, config);
 244         saa7146_write(saa, DEBI_PAGE, 0);
 245         saa7146_write(saa, MC2, (2 << 16) | 2);
 246
 247         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 248         if (result < 0)
 249                 return result;
 250
 251         result = saa7146_read(saa, DEBI_AD);
 252         result &= (0xffffffffUL >> ((4 - count) * 8));
 253         return result;
 254 }
 255
 256 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
 257                           int uselocks, int nobusyloop)
 258 {
 259         if (count > 4 || count <= 0)
 260                 return 0;
 261
 262         if (uselocks) {
 263                 unsigned long flags;
 264                 int result;
 265
 266                 spin_lock_irqsave(&budget->debilock, flags);
 267                 result = ttpci_budget_debiread_nolock(budget, config, addr,
 268                                                       count, nobusyloop);
 269                 spin_unlock_irqrestore(&budget->debilock, flags);
 270                 return result;
 271         }
 272         return ttpci_budget_debiread_nolock(budget, config, addr,
 273                                             count, nobusyloop);
 274 }
 275
 276 static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
 277                 int addr, int count, u32 value, int nobusyloop)
 278 {
 279         struct saa7146_dev *saa = budget->dev;
 280         int result;
 281
 282         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 283         if (result < 0)
 284                 return result;
 285
 286         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
 287         saa7146_write(saa, DEBI_CONFIG, config);
 288         saa7146_write(saa, DEBI_PAGE, 0);
 289         saa7146_write(saa, DEBI_AD, value);
 290         saa7146_write(saa, MC2, (2 << 16) | 2);
 291
 292         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 293         return result < 0 ? result : 0;
 294 }
 295
 296 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
 297                            int count, u32 value, int uselocks, int nobusyloop)
 298 {
 299         if (count > 4 || count <= 0)
 300                 return 0;
 301
 302         if (uselocks) {
 303                 unsigned long flags;
 304                 int result;
 305
 306                 spin_lock_irqsave(&budget->debilock, flags);
 307                 result = ttpci_budget_debiwrite_nolock(budget, config, addr,
 308                                                 count, value, nobusyloop);
 309                 spin_unlock_irqrestore(&budget->debilock, flags);
 310                 return result;
 311         }
 312         return ttpci_budget_debiwrite_nolock(budget, config, addr,
 313                                              count, value, nobusyloop);
 314 }
 315
 316
 317 /****************************************************************************
 318  * DVB API SECTION
 319  ****************************************************************************/
 320
 321 static int budget_start_feed(struct dvb_demux_feed *feed)
 322 {
 323         struct dvb_demux *demux = feed->demux;
 324         struct budget *budget = (struct budget *) demux->priv;
 325         int status = 0;
 326
 327         dprintk(2, "budget: %p\n", budget);
 328
 329         if (!demux->dmx.frontend)
 330                 return -EINVAL;
 331
 332         spin_lock(&budget->feedlock);
 333         feed->pusi_seen = 0; /* have a clean section start */
 334         if (budget->feeding++ == 0)
 335                 status = start_ts_capture(budget);
 336         spin_unlock(&budget->feedlock);
 337         return status;
 338 }
 339
 340 static int budget_stop_feed(struct dvb_demux_feed *feed)
 341 {
 342         struct dvb_demux *demux = feed->demux;
 343         struct budget *budget = (struct budget *) demux->priv;
 344         int status = 0;
 345
 346         dprintk(2, "budget: %p\n", budget);
 347
 348         spin_lock(&budget->feedlock);
 349         if (--budget->feeding == 0)
 350                 status = stop_ts_capture(budget);
 351         spin_unlock(&budget->feedlock);
 352         return status;
 353 }
 354
 355 static int budget_register(struct budget *budget)
 356 {
 357         struct dvb_demux *dvbdemux = &budget->demux;
 358         int ret;
 359
 360         dprintk(2, "budget: %p\n", budget);
 361
 362         dvbdemux->priv = (void *) budget;
 363
 364         dvbdemux->filternum = 256;
 365         dvbdemux->feednum = 256;
 366         dvbdemux->start_feed = budget_start_feed;
 367         dvbdemux->stop_feed = budget_stop_feed;
 368         dvbdemux->write_to_decoder = NULL;
 369
 370         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 371                                       DMX_MEMORY_BASED_FILTERING);
 372
 373         dvb_dmx_init(&budget->demux);
 374
 375         budget->dmxdev.filternum = 256;
 376         budget->dmxdev.demux = &dvbdemux->dmx;
 377         budget->dmxdev.capabilities = 0;
 378
 379         dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
 380
 381         budget->hw_frontend.source = DMX_FRONTEND_0;
 382
 383         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 384
 385         if (ret < 0)
 386                 goto err_release_dmx;
 387
 388         budget->mem_frontend.source = DMX_MEMORY_FE;
 389         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 390         if (ret < 0)
 391                 goto err_release_dmx;
 392
 393         ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 394         if (ret < 0)
 395                 goto err_release_dmx;
 396
 397         dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
 398
 399         return 0;
 400
 401 err_release_dmx:
 402         dvb_dmxdev_release(&budget->dmxdev);
 403         dvb_dmx_release(&budget->demux);
 404         return ret;
 405 }
 406
 407 static void budget_unregister(struct budget *budget)
 408 {
 409         struct dvb_demux *dvbdemux = &budget->demux;
 410
 411         dprintk(2, "budget: %p\n", budget);
 412
 413         dvb_net_release(&budget->dvb_net);
 414
 415         dvbdemux->dmx.close(&dvbdemux->dmx);
 416         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 417         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 418
 419         dvb_dmxdev_release(&budget->dmxdev);
 420         dvb_dmx_release(&budget->demux);
 421 }
 422
 423 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 424                       struct saa7146_pci_extension_data *info,
 425                       struct module *owner, short *adapter_nums)
 426 {
 427         int ret = 0;
 428         struct budget_info *bi = info->ext_priv;
 429         int max_bufsize;
 430         int height_mask;
 431
 432         memset(budget, 0, sizeof(struct budget));
 433
 434         dprintk(2, "dev: %p, budget: %p\n", dev, budget);
 435
 436         budget->card = bi;
 437         budget->dev = (struct saa7146_dev *) dev;
 438
 439         switch(budget->card->type) {
 440         case BUDGET_FS_ACTIVY:
 441                 budget->buffer_width = TS_WIDTH_ACTIVY;
 442                 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
 443                 height_mask = TS_HEIGHT_MASK_ACTIVY;
 444                 break;
 445
 446         case BUDGET_KNC1C:
 447         case BUDGET_KNC1CP:
 448         case BUDGET_CIN1200C:
 449         case BUDGET_KNC1C_MK3:
 450         case BUDGET_KNC1C_TDA10024:
 451         case BUDGET_KNC1CP_MK3:
 452         case BUDGET_CIN1200C_MK3:
 453                 budget->buffer_width = TS_WIDTH_DVBC;
 454                 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
 455                 height_mask = TS_HEIGHT_MASK_DVBC;
 456                 break;
 457
 458         default:
 459                 budget->buffer_width = TS_WIDTH;
 460                 max_bufsize = TS_MAX_BUFSIZE_K;
 461                 height_mask = TS_HEIGHT_MASK;
 462         }
 463
 464         if (dma_buffer_size < TS_MIN_BUFSIZE_K)
 465                 dma_buffer_size = TS_MIN_BUFSIZE_K;
 466         else if (dma_buffer_size > max_bufsize)
 467                 dma_buffer_size = max_bufsize;
 468
 469         budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
 470         if (budget->buffer_height > 0xfff) {
 471                 budget->buffer_height /= 2;
 472                 budget->buffer_height &= height_mask;
 473                 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
 474         } else {
 475                 budget->buffer_height &= height_mask;
 476                 budget->buffer_size = budget->buffer_height * budget->buffer_width;
 477         }
 478         budget->buffer_warning_threshold = budget->buffer_size * 80/100;
 479         budget->buffer_warnings = 0;
 480         budget->buffer_warning_time = jiffies;
 481
 482         dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
 483                 budget->dev->name,
 484                 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
 485                 budget->buffer_width, budget->buffer_height);
 486         printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
 487
 488         ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
 489                                    owner, &budget->dev->pci->dev, adapter_nums);
 490         if (ret < 0)
 491                 return ret;
 492
 493         /* set dd1 stream a & b */
 494         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 495         saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 496         saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 497         saa7146_write(dev, DD1_INIT, 0x02000000);
 498         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 499
 500         if (bi->type != BUDGET_FS_ACTIVY)
 501                 budget->video_port = BUDGET_VIDEO_PORTB;
 502         else
 503                 budget->video_port = BUDGET_VIDEO_PORTA;
 504         spin_lock_init(&budget->feedlock);
 505         spin_lock_init(&budget->debilock);
 506
 507         /* the Siemens DVB needs this if you want to have the i2c chips
 508            get recognized before the main driver is loaded */
 509         if (bi->type != BUDGET_FS_ACTIVY)
 510                 saa7146_write(dev, GPIO_CTRL, 0x500000);        /* GPIO 3 = 1 */
 511
 512         strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
 513
 514         saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
 515         strcpy(budget->i2c_adap.name, budget->card->name);
 516
 517         if (i2c_add_adapter(&budget->i2c_adap) < 0) {
 518                 ret = -ENOMEM;
 519                 goto err_dvb_unregister;
 520         }
 521
 522         ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
 523
 524         budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
 525         if (NULL == budget->grabbing) {
 526                 ret = -ENOMEM;
 527                 goto err_del_i2c;
 528         }
 529
 530         saa7146_write(dev, PCI_BT_V1, 0x001c0000);
 531         /* upload all */
 532         saa7146_write(dev, GPIO_CTRL, 0x000000);
 533
 534         tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
 535
 536         /* frontend power on */
 537         if (bi->type != BUDGET_FS_ACTIVY)
 538                 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 539
 540         if ((ret = budget_register(budget)) == 0)
 541                 return 0; /* Everything OK */
 542
 543         /* An error occurred, cleanup resources */
 544         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 545
 546 err_del_i2c:
 547         i2c_del_adapter(&budget->i2c_adap);
 548
 549 err_dvb_unregister:
 550         dvb_unregister_adapter(&budget->dvb_adapter);
 551
 552         return ret;
 553 }
 554
 555 void ttpci_budget_init_hooks(struct budget *budget)
 556 {
 557         if (budget->dvb_frontend && !budget->read_fe_status) {
 558                 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
 559                 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
 560         }
 561 }
 562
 563 int ttpci_budget_deinit(struct budget *budget)
 564 {
 565         struct saa7146_dev *dev = budget->dev;
 566
 567         dprintk(2, "budget: %p\n", budget);
 568
 569         budget_unregister(budget);
 570
 571         tasklet_kill(&budget->vpe_tasklet);
 572
 573         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 574
 575         i2c_del_adapter(&budget->i2c_adap);
 576
 577         dvb_unregister_adapter(&budget->dvb_adapter);
 578
 579         return 0;
 580 }
 581
 582 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
 583 {
 584         struct budget *budget = (struct budget *) dev->ext_priv;
 585
 586         dprintk(8, "dev: %p, budget: %p\n", dev, budget);
 587
 588         if (*isr & MASK_10)
 589                 tasklet_schedule(&budget->vpe_tasklet);
 590 }
 591
 592 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
 593 {
 594         struct budget *budget = (struct budget *) dev->ext_priv;
 595
 596         spin_lock(&budget->feedlock);
 597         budget->video_port = video_port;
 598         if (budget->feeding) {
 599                 stop_ts_capture(budget);
 600                 start_ts_capture(budget);
 601         }
 602         spin_unlock(&budget->feedlock);
 603 }
 604
 605 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
 606 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
 607 EXPORT_SYMBOL_GPL(ttpci_budget_init);
 608 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
 609 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
 610 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
 611 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
 612 EXPORT_SYMBOL_GPL(budget_debug);
 613
 614 MODULE_LICENSE("GPL");