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 https://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,
 165                                  enum fe_status *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 static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
 236                 int addr, int count, int nobusyloop)
 237 {
 238         struct saa7146_dev *saa = budget->dev;
 239         int result;
 240
 241         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 242         if (result < 0)
 243                 return result;
 244
 245         saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
 246         saa7146_write(saa, DEBI_CONFIG, config);
 247         saa7146_write(saa, DEBI_PAGE, 0);
 248         saa7146_write(saa, MC2, (2 << 16) | 2);
 249
 250         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 251         if (result < 0)
 252                 return result;
 253
 254         result = saa7146_read(saa, DEBI_AD);
 255         result &= (0xffffffffUL >> ((4 - count) * 8));
 256         return result;
 257 }
 258
 259 int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
 260                           int uselocks, int nobusyloop)
 261 {
 262         if (count > 4 || count <= 0)
 263                 return 0;
 264
 265         if (uselocks) {
 266                 unsigned long flags;
 267                 int result;
 268
 269                 spin_lock_irqsave(&budget->debilock, flags);
 270                 result = ttpci_budget_debiread_nolock(budget, config, addr,
 271                                                       count, nobusyloop);
 272                 spin_unlock_irqrestore(&budget->debilock, flags);
 273                 return result;
 274         }
 275         return ttpci_budget_debiread_nolock(budget, config, addr,
 276                                             count, nobusyloop);
 277 }
 278
 279 static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
 280                 int addr, int count, u32 value, int nobusyloop)
 281 {
 282         struct saa7146_dev *saa = budget->dev;
 283         int result;
 284
 285         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 286         if (result < 0)
 287                 return result;
 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         result = saa7146_wait_for_debi_done(saa, nobusyloop);
 296         return result < 0 ? result : 0;
 297 }
 298
 299 int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
 300                            int count, u32 value, int uselocks, int nobusyloop)
 301 {
 302         if (count > 4 || count <= 0)
 303                 return 0;
 304
 305         if (uselocks) {
 306                 unsigned long flags;
 307                 int result;
 308
 309                 spin_lock_irqsave(&budget->debilock, flags);
 310                 result = ttpci_budget_debiwrite_nolock(budget, config, addr,
 311                                                 count, value, nobusyloop);
 312                 spin_unlock_irqrestore(&budget->debilock, flags);
 313                 return result;
 314         }
 315         return ttpci_budget_debiwrite_nolock(budget, config, addr,
 316                                              count, value, nobusyloop);
 317 }
 318
 319
 320 /****************************************************************************
 321  * DVB API SECTION
 322  ****************************************************************************/
 323
 324 static int budget_start_feed(struct dvb_demux_feed *feed)
 325 {
 326         struct dvb_demux *demux = feed->demux;
 327         struct budget *budget = (struct budget *) demux->priv;
 328         int status = 0;
 329
 330         dprintk(2, "budget: %p\n", budget);
 331
 332         if (!demux->dmx.frontend)
 333                 return -EINVAL;
 334
 335         spin_lock(&budget->feedlock);
 336         feed->pusi_seen = 0; /* have a clean section start */
 337         if (budget->feeding++ == 0)
 338                 status = start_ts_capture(budget);
 339         spin_unlock(&budget->feedlock);
 340         return status;
 341 }
 342
 343 static int budget_stop_feed(struct dvb_demux_feed *feed)
 344 {
 345         struct dvb_demux *demux = feed->demux;
 346         struct budget *budget = (struct budget *) demux->priv;
 347         int status = 0;
 348
 349         dprintk(2, "budget: %p\n", budget);
 350
 351         spin_lock(&budget->feedlock);
 352         if (--budget->feeding == 0)
 353                 status = stop_ts_capture(budget);
 354         spin_unlock(&budget->feedlock);
 355         return status;
 356 }
 357
 358 static int budget_register(struct budget *budget)
 359 {
 360         struct dvb_demux *dvbdemux = &budget->demux;
 361         int ret;
 362
 363         dprintk(2, "budget: %p\n", budget);
 364
 365         dvbdemux->priv = (void *) budget;
 366
 367         dvbdemux->filternum = 256;
 368         dvbdemux->feednum = 256;
 369         dvbdemux->start_feed = budget_start_feed;
 370         dvbdemux->stop_feed = budget_stop_feed;
 371         dvbdemux->write_to_decoder = NULL;
 372
 373         dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 374                                       DMX_MEMORY_BASED_FILTERING);
 375
 376         dvb_dmx_init(&budget->demux);
 377
 378         budget->dmxdev.filternum = 256;
 379         budget->dmxdev.demux = &dvbdemux->dmx;
 380         budget->dmxdev.capabilities = 0;
 381
 382         dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
 383
 384         budget->hw_frontend.source = DMX_FRONTEND_0;
 385
 386         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 387
 388         if (ret < 0)
 389                 return ret;
 390
 391         budget->mem_frontend.source = DMX_MEMORY_FE;
 392         ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 393         if (ret < 0)
 394                 return ret;
 395
 396         ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 397         if (ret < 0)
 398                 return ret;
 399
 400         dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
 401
 402         return 0;
 403 }
 404
 405 static void budget_unregister(struct budget *budget)
 406 {
 407         struct dvb_demux *dvbdemux = &budget->demux;
 408
 409         dprintk(2, "budget: %p\n", budget);
 410
 411         dvb_net_release(&budget->dvb_net);
 412
 413         dvbdemux->dmx.close(&dvbdemux->dmx);
 414         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
 415         dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
 416
 417         dvb_dmxdev_release(&budget->dmxdev);
 418         dvb_dmx_release(&budget->demux);
 419 }
 420
 421 int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
 422                       struct saa7146_pci_extension_data *info,
 423                       struct module *owner, short *adapter_nums)
 424 {
 425         int ret = 0;
 426         struct budget_info *bi = info->ext_priv;
 427         int max_bufsize;
 428         int height_mask;
 429
 430         memset(budget, 0, sizeof(struct budget));
 431
 432         dprintk(2, "dev: %p, budget: %p\n", dev, budget);
 433
 434         budget->card = bi;
 435         budget->dev = (struct saa7146_dev *) dev;
 436
 437         switch(budget->card->type) {
 438         case BUDGET_FS_ACTIVY:
 439                 budget->buffer_width = TS_WIDTH_ACTIVY;
 440                 max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
 441                 height_mask = TS_HEIGHT_MASK_ACTIVY;
 442                 break;
 443
 444         case BUDGET_KNC1C:
 445         case BUDGET_KNC1CP:
 446         case BUDGET_CIN1200C:
 447         case BUDGET_KNC1C_MK3:
 448         case BUDGET_KNC1C_TDA10024:
 449         case BUDGET_KNC1CP_MK3:
 450         case BUDGET_CIN1200C_MK3:
 451                 budget->buffer_width = TS_WIDTH_DVBC;
 452                 max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
 453                 height_mask = TS_HEIGHT_MASK_DVBC;
 454                 break;
 455
 456         default:
 457                 budget->buffer_width = TS_WIDTH;
 458                 max_bufsize = TS_MAX_BUFSIZE_K;
 459                 height_mask = TS_HEIGHT_MASK;
 460         }
 461
 462         if (dma_buffer_size < TS_MIN_BUFSIZE_K)
 463                 dma_buffer_size = TS_MIN_BUFSIZE_K;
 464         else if (dma_buffer_size > max_bufsize)
 465                 dma_buffer_size = max_bufsize;
 466
 467         budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
 468         if (budget->buffer_height > 0xfff) {
 469                 budget->buffer_height /= 2;
 470                 budget->buffer_height &= height_mask;
 471                 budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
 472         } else {
 473                 budget->buffer_height &= height_mask;
 474                 budget->buffer_size = budget->buffer_height * budget->buffer_width;
 475         }
 476         budget->buffer_warning_threshold = budget->buffer_size * 80/100;
 477         budget->buffer_warnings = 0;
 478         budget->buffer_warning_time = jiffies;
 479
 480         dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
 481                 budget->dev->name,
 482                 budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
 483                 budget->buffer_width, budget->buffer_height);
 484         printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
 485
 486         ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
 487                                    owner, &budget->dev->pci->dev, adapter_nums);
 488         if (ret < 0)
 489                 return ret;
 490
 491         /* set dd1 stream a & b */
 492         saa7146_write(dev, DD1_STREAM_B, 0x00000000);
 493         saa7146_write(dev, MC2, (MASK_09 | MASK_25));
 494         saa7146_write(dev, MC2, (MASK_10 | MASK_26));
 495         saa7146_write(dev, DD1_INIT, 0x02000000);
 496         saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
 497
 498         if (bi->type != BUDGET_FS_ACTIVY)
 499                 budget->video_port = BUDGET_VIDEO_PORTB;
 500         else
 501                 budget->video_port = BUDGET_VIDEO_PORTA;
 502         spin_lock_init(&budget->feedlock);
 503         spin_lock_init(&budget->debilock);
 504
 505         /* the Siemens DVB needs this if you want to have the i2c chips
 506            get recognized before the main driver is loaded */
 507         if (bi->type != BUDGET_FS_ACTIVY)
 508                 saa7146_write(dev, GPIO_CTRL, 0x500000);        /* GPIO 3 = 1 */
 509
 510         strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
 511
 512         saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
 513         strcpy(budget->i2c_adap.name, budget->card->name);
 514
 515         if (i2c_add_adapter(&budget->i2c_adap) < 0) {
 516                 ret = -ENOMEM;
 517                 goto err_dvb_unregister;
 518         }
 519
 520         ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
 521
 522         budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
 523         if (NULL == budget->grabbing) {
 524                 ret = -ENOMEM;
 525                 goto err_del_i2c;
 526         }
 527
 528         saa7146_write(dev, PCI_BT_V1, 0x001c0000);
 529         /* upload all */
 530         saa7146_write(dev, GPIO_CTRL, 0x000000);
 531
 532         tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
 533
 534         /* frontend power on */
 535         if (bi->type != BUDGET_FS_ACTIVY)
 536                 saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
 537
 538         if ((ret = budget_register(budget)) == 0)
 539                 return 0; /* Everything OK */
 540
 541         /* An error occurred, cleanup resources */
 542         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 543
 544 err_del_i2c:
 545         i2c_del_adapter(&budget->i2c_adap);
 546
 547 err_dvb_unregister:
 548         dvb_unregister_adapter(&budget->dvb_adapter);
 549
 550         return ret;
 551 }
 552
 553 void ttpci_budget_init_hooks(struct budget *budget)
 554 {
 555         if (budget->dvb_frontend && !budget->read_fe_status) {
 556                 budget->read_fe_status = budget->dvb_frontend->ops.read_status;
 557                 budget->dvb_frontend->ops.read_status = budget_read_fe_status;
 558         }
 559 }
 560
 561 int ttpci_budget_deinit(struct budget *budget)
 562 {
 563         struct saa7146_dev *dev = budget->dev;
 564
 565         dprintk(2, "budget: %p\n", budget);
 566
 567         budget_unregister(budget);
 568
 569         tasklet_kill(&budget->vpe_tasklet);
 570
 571         saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
 572
 573         i2c_del_adapter(&budget->i2c_adap);
 574
 575         dvb_unregister_adapter(&budget->dvb_adapter);
 576
 577         return 0;
 578 }
 579
 580 void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
 581 {
 582         struct budget *budget = (struct budget *) dev->ext_priv;
 583
 584         dprintk(8, "dev: %p, budget: %p\n", dev, budget);
 585
 586         if (*isr & MASK_10)
 587                 tasklet_schedule(&budget->vpe_tasklet);
 588 }
 589
 590 void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
 591 {
 592         struct budget *budget = (struct budget *) dev->ext_priv;
 593
 594         spin_lock(&budget->feedlock);
 595         budget->video_port = video_port;
 596         if (budget->feeding) {
 597                 stop_ts_capture(budget);
 598                 start_ts_capture(budget);
 599         }
 600         spin_unlock(&budget->feedlock);
 601 }
 602
 603 EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
 604 EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
 605 EXPORT_SYMBOL_GPL(ttpci_budget_init);
 606 EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
 607 EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
 608 EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
 609 EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
 610 EXPORT_SYMBOL_GPL(budget_debug);
 611
 612 MODULE_LICENSE("GPL");