drivers/media/video/saa7134/saa7134-core.c

   1 /*
   2  *
   3  * device driver for philips saa7134 based TV cards
   4  * driver core
   5  *
   6  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/config.h>
  24 #include <linux/init.h>
  25 #include <linux/list.h>
  26 #include <linux/module.h>
  27 #include <linux/moduleparam.h>
  28 #include <linux/kernel.h>
  29 #include <linux/slab.h>
  30 #include <linux/kmod.h>
  31 #include <linux/sound.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/delay.h>
  34 #include <linux/mutex.h>
  35
  36 #include "saa7134-reg.h"
  37 #include "saa7134.h"
  38
  39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  41 MODULE_LICENSE("GPL");
  42
  43 /* ------------------------------------------------------------------ */
  44
  45 static unsigned int irq_debug = 0;
  46 module_param(irq_debug, int, 0644);
  47 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  48
  49 static unsigned int core_debug = 0;
  50 module_param(core_debug, int, 0644);
  51 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  52
  53 static unsigned int gpio_tracking = 0;
  54 module_param(gpio_tracking, int, 0644);
  55 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  56
  57 static unsigned int alsa = 0;
  58 module_param(alsa, int, 0644);
  59 MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
  60
  61 static unsigned int oss = 0;
  62 module_param(oss, int, 0644);
  63 MODULE_PARM_DESC(oss,"enable OSS DMA sound [dmasound]");
  64
  65 static unsigned int latency = UNSET;
  66 module_param(latency, int, 0444);
  67 MODULE_PARM_DESC(latency,"pci latency timer");
  68
  69 int saa7134_no_overlay=-1;
  70 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  71 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  72                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  73
  74 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  78 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  79
  80
  81 module_param_array(video_nr, int, NULL, 0444);
  82 module_param_array(vbi_nr,   int, NULL, 0444);
  83 module_param_array(radio_nr, int, NULL, 0444);
  84 module_param_array(tuner,    int, NULL, 0444);
  85 module_param_array(card,     int, NULL, 0444);
  86
  87 MODULE_PARM_DESC(video_nr, "video device number");
  88 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  89 MODULE_PARM_DESC(radio_nr, "radio device number");
  90 MODULE_PARM_DESC(tuner,    "tuner type");
  91 MODULE_PARM_DESC(card,     "card type");
  92
  93 static DEFINE_MUTEX(devlist_lock);
  94 LIST_HEAD(saa7134_devlist);
  95 static LIST_HEAD(mops_list);
  96 static unsigned int saa7134_devcount;
  97
  98 int (*dmasound_init)(struct saa7134_dev *dev);
  99 int (*dmasound_exit)(struct saa7134_dev *dev);
 100
 101 #define dprintk(fmt, arg...)    if (core_debug) \
 102         printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
 103
 104 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 105 {
 106         unsigned long mode,status;
 107
 108         if (!gpio_tracking)
 109                 return;
 110         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 111         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 112         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 113         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 114         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 115         printk(KERN_DEBUG
 116                "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 117                dev->name, mode, (~mode) & status, mode & status, msg);
 118 }
 119
 120 /* ------------------------------------------------------------------ */
 121
 122
 123 /* ----------------------------------------------------------- */
 124 /* delayed request_module                                      */
 125
 126 #if defined(CONFIG_MODULES) && defined(MODULE)
 127 static int need_empress;
 128 static int need_dvb;
 129 static int need_alsa;
 130 static int need_oss;
 131
 132 static int pending_call(struct notifier_block *self, unsigned long state,
 133                         void *module)
 134 {
 135         if (module != THIS_MODULE || state != MODULE_STATE_LIVE)
 136                 return NOTIFY_DONE;
 137
 138         if (need_empress)
 139                 request_module("saa7134-empress");
 140         if (need_dvb)
 141                 request_module("saa7134-dvb");
 142         if (need_alsa)
 143                 request_module("saa7134-alsa");
 144         if (need_oss)
 145                 request_module("saa7134-oss");
 146         return NOTIFY_DONE;
 147 }
 148
 149 static int pending_registered;
 150 static struct notifier_block pending_notifier = {
 151         .notifier_call = pending_call,
 152 };
 153
 154 static void request_module_depend(char *name, int *flag)
 155 {
 156         int err;
 157         switch (THIS_MODULE->state) {
 158         case MODULE_STATE_COMING:
 159                 if (!pending_registered) {
 160                         err = register_module_notifier(&pending_notifier);
 161                         pending_registered = 1;
 162                 }
 163                 *flag = 1;
 164                 break;
 165         case MODULE_STATE_LIVE:
 166                 request_module(name);
 167                 break;
 168         default:
 169                 /* nothing */;
 170                 break;
 171         }
 172 }
 173
 174 #else
 175 #define request_module_depend(name,flag)
 176 #endif /* CONFIG_MODULES */
 177
 178 /* ------------------------------------------------------------------ */
 179
 180 /* nr of (saa7134-)pages for the given buffer size */
 181 static int saa7134_buffer_pages(int size)
 182 {
 183         size  = PAGE_ALIGN(size);
 184         size += PAGE_SIZE; /* for non-page-aligned buffers */
 185         size /= 4096;
 186         return size;
 187 }
 188
 189 /* calc max # of buffers from size (must not exceed the 4MB virtual
 190  * address space per DMA channel) */
 191 int saa7134_buffer_count(unsigned int size, unsigned int count)
 192 {
 193         unsigned int maxcount;
 194
 195         maxcount = 1024 / saa7134_buffer_pages(size);
 196         if (count > maxcount)
 197                 count = maxcount;
 198         return count;
 199 }
 200
 201 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 202 {
 203         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 204 }
 205
 206 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 207 {
 208         unsigned long base;
 209
 210         base  = saa7134_buffer_startpage(buf) * 4096;
 211         base += buf->vb.dma.sglist[0].offset;
 212         return base;
 213 }
 214
 215 /* ------------------------------------------------------------------ */
 216
 217 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 218 {
 219         __le32       *cpu;
 220         dma_addr_t   dma_addr;
 221
 222         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 223         if (NULL == cpu)
 224                 return -ENOMEM;
 225         pt->size = SAA7134_PGTABLE_SIZE;
 226         pt->cpu  = cpu;
 227         pt->dma  = dma_addr;
 228         return 0;
 229 }
 230
 231 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 232                           struct scatterlist *list, unsigned int length,
 233                           unsigned int startpage)
 234 {
 235         __le32        *ptr;
 236         unsigned int  i,p;
 237
 238         BUG_ON(NULL == pt || NULL == pt->cpu);
 239
 240         ptr = pt->cpu + startpage;
 241         for (i = 0; i < length; i++, list++)
 242                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 243                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 244         return 0;
 245 }
 246
 247 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 248 {
 249         if (NULL == pt->cpu)
 250                 return;
 251         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 252         pt->cpu = NULL;
 253 }
 254
 255 /* ------------------------------------------------------------------ */
 256
 257 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 258 {
 259         BUG_ON(in_interrupt());
 260
 261         videobuf_waiton(&buf->vb,0,0);
 262         videobuf_dma_unmap(q, &buf->vb.dma);
 263         videobuf_dma_free(&buf->vb.dma);
 264         buf->vb.state = STATE_NEEDS_INIT;
 265 }
 266
 267 /* ------------------------------------------------------------------ */
 268
 269 int saa7134_buffer_queue(struct saa7134_dev *dev,
 270                          struct saa7134_dmaqueue *q,
 271                          struct saa7134_buf *buf)
 272 {
 273         struct saa7134_buf *next = NULL;
 274
 275         assert_spin_locked(&dev->slock);
 276         dprintk("buffer_queue %p\n",buf);
 277         if (NULL == q->curr) {
 278                 if (!q->need_two) {
 279                         q->curr = buf;
 280                         buf->activate(dev,buf,NULL);
 281                 } else if (list_empty(&q->queue)) {
 282                         list_add_tail(&buf->vb.queue,&q->queue);
 283                         buf->vb.state = STATE_QUEUED;
 284                 } else {
 285                         next = list_entry(q->queue.next,struct saa7134_buf,
 286                                           vb.queue);
 287                         q->curr = buf;
 288                         buf->activate(dev,buf,next);
 289                 }
 290         } else {
 291                 list_add_tail(&buf->vb.queue,&q->queue);
 292                 buf->vb.state = STATE_QUEUED;
 293         }
 294         return 0;
 295 }
 296
 297 void saa7134_buffer_finish(struct saa7134_dev *dev,
 298                            struct saa7134_dmaqueue *q,
 299                            unsigned int state)
 300 {
 301         assert_spin_locked(&dev->slock);
 302         dprintk("buffer_finish %p\n",q->curr);
 303
 304         /* finish current buffer */
 305         q->curr->vb.state = state;
 306         do_gettimeofday(&q->curr->vb.ts);
 307         wake_up(&q->curr->vb.done);
 308         q->curr = NULL;
 309 }
 310
 311 void saa7134_buffer_next(struct saa7134_dev *dev,
 312                          struct saa7134_dmaqueue *q)
 313 {
 314         struct saa7134_buf *buf,*next = NULL;
 315
 316         assert_spin_locked(&dev->slock);
 317         BUG_ON(NULL != q->curr);
 318
 319         if (!list_empty(&q->queue)) {
 320                 /* activate next one from queue */
 321                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 322                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 323                         buf,q->queue.prev,q->queue.next);
 324                 list_del(&buf->vb.queue);
 325                 if (!list_empty(&q->queue))
 326                         next = list_entry(q->queue.next,struct saa7134_buf,
 327                                           vb.queue);
 328                 q->curr = buf;
 329                 buf->activate(dev,buf,next);
 330                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 331                         q->queue.prev,q->queue.next);
 332         } else {
 333                 /* nothing to do -- just stop DMA */
 334                 dprintk("buffer_next %p\n",NULL);
 335                 saa7134_set_dmabits(dev);
 336                 del_timer(&q->timeout);
 337         }
 338 }
 339
 340 void saa7134_buffer_timeout(unsigned long data)
 341 {
 342         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 343         struct saa7134_dev *dev = q->dev;
 344         unsigned long flags;
 345
 346         spin_lock_irqsave(&dev->slock,flags);
 347
 348         /* try to reset the hardware (SWRST) */
 349         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 350         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 351         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 352
 353         /* flag current buffer as failed,
 354            try to start over with the next one. */
 355         if (q->curr) {
 356                 dprintk("timeout on %p\n",q->curr);
 357                 saa7134_buffer_finish(dev,q,STATE_ERROR);
 358         }
 359         saa7134_buffer_next(dev,q);
 360         spin_unlock_irqrestore(&dev->slock,flags);
 361 }
 362
 363 /* ------------------------------------------------------------------ */
 364
 365 int saa7134_set_dmabits(struct saa7134_dev *dev)
 366 {
 367         u32 split, task=0, ctrl=0, irq=0;
 368         enum v4l2_field cap = V4L2_FIELD_ANY;
 369         enum v4l2_field ov  = V4L2_FIELD_ANY;
 370
 371         assert_spin_locked(&dev->slock);
 372
 373         /* video capture -- dma 0 + video task A */
 374         if (dev->video_q.curr) {
 375                 task |= 0x01;
 376                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 377                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 378                         SAA7134_IRQ1_INTE_RA0_0;
 379                 cap = dev->video_q.curr->vb.field;
 380         }
 381
 382         /* video capture -- dma 1+2 (planar modes) */
 383         if (dev->video_q.curr &&
 384             dev->video_q.curr->fmt->planar) {
 385                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 386                         SAA7134_MAIN_CTRL_TE5;
 387         }
 388
 389         /* screen overlay -- dma 0 + video task B */
 390         if (dev->ovenable) {
 391                 task |= 0x10;
 392                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 393                 ov = dev->ovfield;
 394         }
 395
 396         /* vbi capture -- dma 0 + vbi task A+B */
 397         if (dev->vbi_q.curr) {
 398                 task |= 0x22;
 399                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 400                         SAA7134_MAIN_CTRL_TE3;
 401                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 402                         SAA7134_IRQ1_INTE_RA0_6 |
 403                         SAA7134_IRQ1_INTE_RA0_5 |
 404                         SAA7134_IRQ1_INTE_RA0_4;
 405         }
 406
 407         /* audio capture -- dma 3 */
 408         if (dev->dmasound.dma_running) {
 409                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 410                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 411                         SAA7134_IRQ1_INTE_RA3_0;
 412         }
 413
 414         /* TS capture -- dma 5 */
 415         if (dev->ts_q.curr) {
 416                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 417                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 418                         SAA7134_IRQ1_INTE_RA2_2 |
 419                         SAA7134_IRQ1_INTE_RA2_1 |
 420                         SAA7134_IRQ1_INTE_RA2_0;
 421         }
 422
 423         /* set task conditions + field handling */
 424         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 425                 /* default config -- use full frames */
 426                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 427                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 428                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 429                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 430                 split = 0;
 431         } else {
 432                 /* split fields between tasks */
 433                 if (V4L2_FIELD_TOP == cap) {
 434                         /* odd A, even B, repeat */
 435                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 436                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 437                 } else {
 438                         /* odd B, even A, repeat */
 439                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 440                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 441                 }
 442                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 443                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 444                 split = 1;
 445         }
 446
 447         /* irqs */
 448         saa_writeb(SAA7134_REGION_ENABLE, task);
 449         saa_writel(SAA7134_IRQ1,          irq);
 450         saa_andorl(SAA7134_MAIN_CTRL,
 451                    SAA7134_MAIN_CTRL_TE0 |
 452                    SAA7134_MAIN_CTRL_TE1 |
 453                    SAA7134_MAIN_CTRL_TE2 |
 454                    SAA7134_MAIN_CTRL_TE3 |
 455                    SAA7134_MAIN_CTRL_TE4 |
 456                    SAA7134_MAIN_CTRL_TE5 |
 457                    SAA7134_MAIN_CTRL_TE6,
 458                    ctrl);
 459         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 460                 task, ctrl, irq, split ? "no" : "yes");
 461
 462         return 0;
 463 }
 464
 465 /* ------------------------------------------------------------------ */
 466 /* IRQ handler + helpers                                              */
 467
 468 static char *irqbits[] = {
 469         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 470         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 471         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 472         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 473 };
 474 #define IRQBITS ARRAY_SIZE(irqbits)
 475
 476 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 477                             unsigned long report, unsigned long status)
 478 {
 479         unsigned int i;
 480
 481         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 482                dev->name,loop,jiffies,report,status);
 483         for (i = 0; i < IRQBITS; i++) {
 484                 if (!(report & (1 << i)))
 485                         continue;
 486                 printk(" %s",irqbits[i]);
 487         }
 488         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 489                 printk(" | RA0=%s,%s,%s,%ld",
 490                        (status & 0x40) ? "vbi"  : "video",
 491                        (status & 0x20) ? "b"    : "a",
 492                        (status & 0x10) ? "odd"  : "even",
 493                        (status & 0x0f));
 494         }
 495         printk("\n");
 496 }
 497
 498 static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs)
 499 {
 500         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 501         unsigned long report,status;
 502         int loop, handled = 0;
 503
 504         for (loop = 0; loop < 10; loop++) {
 505                 report = saa_readl(SAA7134_IRQ_REPORT);
 506                 status = saa_readl(SAA7134_IRQ_STATUS);
 507                 if (0 == report) {
 508                         if (irq_debug > 1)
 509                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 510                                        dev->name);
 511                         goto out;
 512                 }
 513
 514                 /* If dmasound support is active and we get a sound report, exit
 515                    and let the saa7134-alsa/oss module deal with it */
 516
 517                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 518                         (dev->dmasound.priv_data != NULL) )
 519                 {
 520                         if (irq_debug > 1)
 521                                 printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
 522                                        dev->name);
 523                         goto out;
 524                 }
 525
 526                 handled = 1;
 527                 saa_writel(SAA7134_IRQ_REPORT,report);
 528                 if (irq_debug)
 529                         print_irqstatus(dev,loop,report,status);
 530
 531
 532                 if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */)
 533                         saa7134_irq_video_intl(dev);
 534
 535                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 536                     (status & 0x60) == 0)
 537                         saa7134_irq_video_done(dev,status);
 538
 539                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 540                     (status & 0x40) == 0x40)
 541                         saa7134_irq_vbi_done(dev,status);
 542
 543                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 544                     card_has_mpeg(dev))
 545                         saa7134_irq_ts_done(dev,status);
 546
 547                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 548                         switch (dev->has_remote) {
 549                                 case SAA7134_REMOTE_GPIO:
 550                                         if  (dev->remote->mask_keydown & 0x10000) {
 551                                                 saa7134_input_irq(dev);
 552                                         }
 553                                         break;
 554
 555                                 case SAA7134_REMOTE_I2C:
 556                                         break;                  /* FIXME: invoke I2C get_key() */
 557
 558                                 default:                        /* GPIO16 not used by IR remote */
 559                                         break;
 560                         }
 561                 }
 562
 563                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 564                         switch (dev->has_remote) {
 565                                 case SAA7134_REMOTE_GPIO:
 566                                         if ((dev->remote->mask_keydown & 0x40000) ||
 567                                             (dev->remote->mask_keyup & 0x40000)) {
 568                                                 saa7134_input_irq(dev);
 569                                         }
 570                                         break;
 571
 572                                 case SAA7134_REMOTE_I2C:
 573                                         break;                  /* FIXME: invoke I2C get_key() */
 574
 575                                 default:                        /* GPIO18 not used by IR remote */
 576                                         break;
 577                         }
 578                 }
 579         }
 580
 581         if (10 == loop) {
 582                 print_irqstatus(dev,loop,report,status);
 583                 if (report & SAA7134_IRQ_REPORT_PE) {
 584                         /* disable all parity error */
 585                         printk(KERN_WARNING "%s/irq: looping -- "
 586                                "clearing PE (parity error!) enable bit\n",dev->name);
 587                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 588                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 589                         /* disable gpio16 IRQ */
 590                         printk(KERN_WARNING "%s/irq: looping -- "
 591                                "clearing GPIO16 enable bit\n",dev->name);
 592                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 593                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 594                         /* disable gpio18 IRQs */
 595                         printk(KERN_WARNING "%s/irq: looping -- "
 596                                "clearing GPIO18 enable bit\n",dev->name);
 597                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 598                 } else {
 599                         /* disable all irqs */
 600                         printk(KERN_WARNING "%s/irq: looping -- "
 601                                "clearing all enable bits\n",dev->name);
 602                         saa_writel(SAA7134_IRQ1,0);
 603                         saa_writel(SAA7134_IRQ2,0);
 604                 }
 605         }
 606
 607  out:
 608         return IRQ_RETVAL(handled);
 609 }
 610
 611 /* ------------------------------------------------------------------ */
 612
 613 /* early init (no i2c, no irq) */
 614 static int saa7134_hwinit1(struct saa7134_dev *dev)
 615 {
 616         dprintk("hwinit1\n");
 617
 618         saa_writel(SAA7134_IRQ1, 0);
 619         saa_writel(SAA7134_IRQ2, 0);
 620         mutex_init(&dev->lock);
 621         spin_lock_init(&dev->slock);
 622
 623         saa7134_track_gpio(dev,"pre-init");
 624         saa7134_video_init1(dev);
 625         saa7134_vbi_init1(dev);
 626         if (card_has_mpeg(dev))
 627                 saa7134_ts_init1(dev);
 628         saa7134_input_init1(dev);
 629
 630         /* RAM FIFO config */
 631         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 632         saa_writel(SAA7134_THRESHOULD,0x02020202);
 633
 634         /* enable audio + video processing */
 635         saa_writel(SAA7134_MAIN_CTRL,
 636                    SAA7134_MAIN_CTRL_VPLLE |
 637                    SAA7134_MAIN_CTRL_APLLE |
 638                    SAA7134_MAIN_CTRL_EXOSC |
 639                    SAA7134_MAIN_CTRL_EVFE1 |
 640                    SAA7134_MAIN_CTRL_EVFE2 |
 641                    SAA7134_MAIN_CTRL_ESFE  |
 642                    SAA7134_MAIN_CTRL_EBDAC);
 643
 644         /*
 645          * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 646          * OSS initialization writes to registers via the audio DSP; these
 647          * writes will fail unless the audio clock has been started.  At worst,
 648          * audio will not work.
 649          */
 650
 651         /* enable peripheral devices */
 652         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 653
 654         /* set vertical line numbering start (vbi needs this) */
 655         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 656
 657         return 0;
 658 }
 659
 660 /* late init (with i2c + irq) */
 661 static int saa7134_hwinit2(struct saa7134_dev *dev)
 662 {
 663         unsigned int irq2_mask;
 664         dprintk("hwinit2\n");
 665
 666         saa7134_video_init2(dev);
 667         saa7134_tvaudio_init2(dev);
 668
 669         /* enable IRQ's */
 670         irq2_mask =
 671                 SAA7134_IRQ2_INTE_DEC3    |
 672                 SAA7134_IRQ2_INTE_DEC2    |
 673                 SAA7134_IRQ2_INTE_DEC1    |
 674                 SAA7134_IRQ2_INTE_DEC0    |
 675                 SAA7134_IRQ2_INTE_PE      |
 676                 SAA7134_IRQ2_INTE_AR;
 677
 678         if (dev->has_remote == SAA7134_REMOTE_GPIO) {
 679                 if (dev->remote->mask_keydown & 0x10000)
 680                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 681                 else if (dev->remote->mask_keydown & 0x40000)
 682                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 683                 else if (dev->remote->mask_keyup & 0x40000)
 684                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 685         }
 686
 687         saa_writel(SAA7134_IRQ1, 0);
 688         saa_writel(SAA7134_IRQ2, irq2_mask);
 689
 690         return 0;
 691 }
 692
 693 /* shutdown */
 694 static int saa7134_hwfini(struct saa7134_dev *dev)
 695 {
 696         dprintk("hwfini\n");
 697
 698         if (card_has_mpeg(dev))
 699                 saa7134_ts_fini(dev);
 700         saa7134_input_fini(dev);
 701         saa7134_vbi_fini(dev);
 702         saa7134_video_fini(dev);
 703         saa7134_tvaudio_fini(dev);
 704         return 0;
 705 }
 706
 707 static void __devinit must_configure_manually(void)
 708 {
 709         unsigned int i,p;
 710
 711         printk(KERN_WARNING
 712                "saa7134: <rant>\n"
 713                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 714                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 715                "saa7134:  subsystem ID and I can't identify it automatically\n"
 716                "saa7134: </rant>\n"
 717                "saa7134: I feel better now.  Ok, here are the good news:\n"
 718                "saa7134: You can use the card=<nr> insmod option to specify\n"
 719                "saa7134: which board do you have.  The list:\n");
 720         for (i = 0; i < saa7134_bcount; i++) {
 721                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 722                        i,saa7134_boards[i].name);
 723                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 724                         if (saa7134_pci_tbl[p].driver_data != i)
 725                                 continue;
 726                         printk(" %04x:%04x",
 727                                saa7134_pci_tbl[p].subvendor,
 728                                saa7134_pci_tbl[p].subdevice);
 729                 }
 730                 printk("\n");
 731         }
 732 }
 733
 734 static struct video_device *vdev_init(struct saa7134_dev *dev,
 735                                       struct video_device *template,
 736                                       char *type)
 737 {
 738         struct video_device *vfd;
 739
 740         vfd = video_device_alloc();
 741         if (NULL == vfd)
 742                 return NULL;
 743         *vfd = *template;
 744         vfd->minor   = -1;
 745         vfd->dev     = &dev->pci->dev;
 746         vfd->release = video_device_release;
 747         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 748                  dev->name, type, saa7134_boards[dev->board].name);
 749         return vfd;
 750 }
 751
 752 static void saa7134_unregister_video(struct saa7134_dev *dev)
 753 {
 754         if (dev->video_dev) {
 755                 if (-1 != dev->video_dev->minor)
 756                         video_unregister_device(dev->video_dev);
 757                 else
 758                         video_device_release(dev->video_dev);
 759                 dev->video_dev = NULL;
 760         }
 761         if (dev->vbi_dev) {
 762                 if (-1 != dev->vbi_dev->minor)
 763                         video_unregister_device(dev->vbi_dev);
 764                 else
 765                         video_device_release(dev->vbi_dev);
 766                 dev->vbi_dev = NULL;
 767         }
 768         if (dev->radio_dev) {
 769                 if (-1 != dev->radio_dev->minor)
 770                         video_unregister_device(dev->radio_dev);
 771                 else
 772                         video_device_release(dev->radio_dev);
 773                 dev->radio_dev = NULL;
 774         }
 775 }
 776
 777 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 778                             struct saa7134_dev *dev)
 779 {
 780         int err;
 781
 782         if (NULL != dev->mops)
 783                 return;
 784         if (saa7134_boards[dev->board].mpeg != ops->type)
 785                 return;
 786         err = ops->init(dev);
 787         if (0 != err)
 788                 return;
 789         dev->mops = ops;
 790 }
 791
 792 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 793                             struct saa7134_dev *dev)
 794 {
 795         if (NULL == dev->mops)
 796                 return;
 797         if (dev->mops != ops)
 798                 return;
 799         dev->mops->fini(dev);
 800         dev->mops = NULL;
 801 }
 802
 803 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 804                                      const struct pci_device_id *pci_id)
 805 {
 806         struct saa7134_dev *dev;
 807         struct list_head *item;
 808         struct saa7134_mpeg_ops *mops;
 809         int err;
 810
 811         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 812         if (NULL == dev)
 813                 return -ENOMEM;
 814
 815         /* pci init */
 816         dev->pci = pci_dev;
 817         if (pci_enable_device(pci_dev)) {
 818                 err = -EIO;
 819                 goto fail1;
 820         }
 821
 822         dev->nr = saa7134_devcount;
 823         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 824
 825         /* pci quirks */
 826         if (pci_pci_problems) {
 827                 if (pci_pci_problems & PCIPCI_TRITON)
 828                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 829                 if (pci_pci_problems & PCIPCI_NATOMA)
 830                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 831                 if (pci_pci_problems & PCIPCI_VIAETBF)
 832                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 833                 if (pci_pci_problems & PCIPCI_VSFX)
 834                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 835 #ifdef PCIPCI_ALIMAGIK
 836                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 837                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 838                                dev->name);
 839                         latency = 0x0A;
 840                 }
 841 #endif
 842                 if (pci_pci_problems & PCIPCI_FAIL) {
 843                         printk(KERN_INFO "%s: quirk: this driver and your "
 844                                         "chipset may not work together"
 845                                         " in overlay mode.\n",dev->name);
 846                         if (!saa7134_no_overlay) {
 847                                 printk(KERN_INFO "%s: quirk: overlay "
 848                                                 "mode will be disabled.\n",
 849                                                 dev->name);
 850                                 saa7134_no_overlay = 1;
 851                         } else {
 852                                 printk(KERN_INFO "%s: quirk: overlay "
 853                                                 "mode will be forced. Use this"
 854                                                 " option at your own risk.\n",
 855                                                 dev->name);
 856                         }
 857                 }
 858         }
 859         if (UNSET != latency) {
 860                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 861                        dev->name,latency);
 862                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 863         }
 864
 865         /* print pci info */
 866         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 867         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 868         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 869                "latency: %d, mmio: 0x%lx\n", dev->name,
 870                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 871                dev->pci_lat,pci_resource_start(pci_dev,0));
 872         pci_set_master(pci_dev);
 873         if (!pci_dma_supported(pci_dev,0xffffffff)) {
 874                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 875                 err = -EIO;
 876                 goto fail1;
 877         }
 878
 879         /* board config */
 880         dev->board = pci_id->driver_data;
 881         if (card[dev->nr] >= 0 &&
 882             card[dev->nr] < saa7134_bcount)
 883                 dev->board = card[dev->nr];
 884         if (SAA7134_BOARD_NOAUTO == dev->board) {
 885                 must_configure_manually();
 886                 dev->board = SAA7134_BOARD_UNKNOWN;
 887         }
 888         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 889         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 890         if (UNSET != tuner[dev->nr])
 891                 dev->tuner_type = tuner[dev->nr];
 892         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 893                dev->name,pci_dev->subsystem_vendor,
 894                pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 895                dev->board, card[dev->nr] == dev->board ?
 896                "insmod option" : "autodetected");
 897
 898         /* get mmio */
 899         if (!request_mem_region(pci_resource_start(pci_dev,0),
 900                                 pci_resource_len(pci_dev,0),
 901                                 dev->name)) {
 902                 err = -EBUSY;
 903                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%lx\n",
 904                        dev->name,pci_resource_start(pci_dev,0));
 905                 goto fail1;
 906         }
 907         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 908         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 909         if (NULL == dev->lmmio) {
 910                 err = -EIO;
 911                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 912                        dev->name);
 913                 goto fail2;
 914         }
 915
 916         /* initialize hardware #1 */
 917         saa7134_board_init1(dev);
 918         saa7134_hwinit1(dev);
 919
 920         /* get irq */
 921         err = request_irq(pci_dev->irq, saa7134_irq,
 922                           SA_SHIRQ | SA_INTERRUPT, dev->name, dev);
 923         if (err < 0) {
 924                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 925                        dev->name,pci_dev->irq);
 926                 goto fail3;
 927         }
 928
 929         /* wait a bit, register i2c bus */
 930         msleep(100);
 931         saa7134_i2c_register(dev);
 932
 933         /* initialize hardware #2 */
 934         saa7134_board_init2(dev);
 935         saa7134_hwinit2(dev);
 936
 937         /* load i2c helpers */
 938         if (TUNER_ABSENT != dev->tuner_type)
 939                 request_module("tuner");
 940         if (dev->tda9887_conf)
 941                 request_module("tda9887");
 942         if (card_is_empress(dev)) {
 943                 request_module("saa6752hs");
 944                 request_module_depend("saa7134-empress",&need_empress);
 945         }
 946
 947         if (card_is_dvb(dev))
 948                 request_module_depend("saa7134-dvb",&need_dvb);
 949
 950
 951         if (alsa)
 952                 request_module_depend("saa7134-alsa",&need_alsa);
 953
 954         if (oss)
 955                 request_module_depend("saa7134-oss",&need_oss);
 956
 957         v4l2_prio_init(&dev->prio);
 958
 959         /* register v4l devices */
 960         if (saa7134_no_overlay <= 0) {
 961                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
 962         } else {
 963                 printk("%s: Overlay support disabled.\n",dev->name);
 964         }
 965         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
 966         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
 967                                     video_nr[dev->nr]);
 968         if (err < 0) {
 969                 printk(KERN_INFO "%s: can't register video device\n",
 970                        dev->name);
 971                 goto fail4;
 972         }
 973         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
 974                dev->name,dev->video_dev->minor & 0x1f);
 975
 976         dev->vbi_dev = vdev_init(dev,&saa7134_vbi_template,"vbi");
 977         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
 978                                     vbi_nr[dev->nr]);
 979         if (err < 0)
 980                 goto fail4;
 981         printk(KERN_INFO "%s: registered device vbi%d\n",
 982                dev->name,dev->vbi_dev->minor & 0x1f);
 983
 984         if (card_has_radio(dev)) {
 985                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
 986                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
 987                                             radio_nr[dev->nr]);
 988                 if (err < 0)
 989                         goto fail4;
 990                 printk(KERN_INFO "%s: registered device radio%d\n",
 991                        dev->name,dev->radio_dev->minor & 0x1f);
 992         }
 993
 994         /* everything worked */
 995         pci_set_drvdata(pci_dev,dev);
 996         saa7134_devcount++;
 997
 998         mutex_lock(&devlist_lock);
 999         list_for_each(item,&mops_list) {
1000                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1001                 mpeg_ops_attach(mops, dev);
1002         }
1003         list_add_tail(&dev->devlist,&saa7134_devlist);
1004         mutex_unlock(&devlist_lock);
1005
1006         /* check for signal */
1007         saa7134_irq_video_intl(dev);
1008
1009         if (dmasound_init && !dev->dmasound.priv_data) {
1010                 dmasound_init(dev);
1011         }
1012
1013         return 0;
1014
1015  fail4:
1016         saa7134_unregister_video(dev);
1017         saa7134_i2c_unregister(dev);
1018         free_irq(pci_dev->irq, dev);
1019  fail3:
1020         saa7134_hwfini(dev);
1021         iounmap(dev->lmmio);
1022  fail2:
1023         release_mem_region(pci_resource_start(pci_dev,0),
1024                            pci_resource_len(pci_dev,0));
1025  fail1:
1026         kfree(dev);
1027         return err;
1028 }
1029
1030 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1031 {
1032         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1033         struct list_head *item;
1034         struct saa7134_mpeg_ops *mops;
1035
1036         /* Release DMA sound modules if present */
1037         if (dmasound_exit && dev->dmasound.priv_data) {
1038                 dmasound_exit(dev);
1039         }
1040
1041         /* debugging ... */
1042         if (irq_debug) {
1043                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1044                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1045                 print_irqstatus(dev,42,report,status);
1046         }
1047
1048         /* disable peripheral devices */
1049         saa_writeb(SAA7134_SPECIAL_MODE,0);
1050
1051         /* shutdown hardware */
1052         saa_writel(SAA7134_IRQ1,0);
1053         saa_writel(SAA7134_IRQ2,0);
1054         saa_writel(SAA7134_MAIN_CTRL,0);
1055
1056         /* shutdown subsystems */
1057         saa7134_hwfini(dev);
1058
1059         /* unregister */
1060         mutex_lock(&devlist_lock);
1061         list_del(&dev->devlist);
1062         list_for_each(item,&mops_list) {
1063                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1064                 mpeg_ops_detach(mops, dev);
1065         }
1066         mutex_unlock(&devlist_lock);
1067         saa7134_devcount--;
1068
1069         saa7134_i2c_unregister(dev);
1070         saa7134_unregister_video(dev);
1071
1072
1073         /* the DMA sound modules should be unloaded before reaching
1074            this, but just in case they are still present... */
1075         if (dev->dmasound.priv_data != NULL) {
1076                 free_irq(pci_dev->irq, &dev->dmasound);
1077                 dev->dmasound.priv_data = NULL;
1078         }
1079
1080
1081         /* release resources */
1082         free_irq(pci_dev->irq, dev);
1083         iounmap(dev->lmmio);
1084         release_mem_region(pci_resource_start(pci_dev,0),
1085                            pci_resource_len(pci_dev,0));
1086
1087         pci_set_drvdata(pci_dev, NULL);
1088
1089         /* free memory */
1090         kfree(dev);
1091 }
1092
1093 /* ----------------------------------------------------------- */
1094
1095 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1096 {
1097         struct list_head *item;
1098         struct saa7134_dev *dev;
1099
1100         mutex_lock(&devlist_lock);
1101         list_for_each(item,&saa7134_devlist) {
1102                 dev = list_entry(item, struct saa7134_dev, devlist);
1103                 mpeg_ops_attach(ops, dev);
1104         }
1105         list_add_tail(&ops->next,&mops_list);
1106         mutex_unlock(&devlist_lock);
1107         return 0;
1108 }
1109
1110 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1111 {
1112         struct list_head *item;
1113         struct saa7134_dev *dev;
1114
1115         mutex_lock(&devlist_lock);
1116         list_del(&ops->next);
1117         list_for_each(item,&saa7134_devlist) {
1118                 dev = list_entry(item, struct saa7134_dev, devlist);
1119                 mpeg_ops_detach(ops, dev);
1120         }
1121         mutex_unlock(&devlist_lock);
1122 }
1123
1124 EXPORT_SYMBOL(saa7134_ts_register);
1125 EXPORT_SYMBOL(saa7134_ts_unregister);
1126
1127 /* ----------------------------------------------------------- */
1128
1129 static struct pci_driver saa7134_pci_driver = {
1130         .name     = "saa7134",
1131         .id_table = saa7134_pci_tbl,
1132         .probe    = saa7134_initdev,
1133         .remove   = __devexit_p(saa7134_finidev),
1134 };
1135
1136 static int saa7134_init(void)
1137 {
1138         INIT_LIST_HEAD(&saa7134_devlist);
1139         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1140                (SAA7134_VERSION_CODE >> 16) & 0xff,
1141                (SAA7134_VERSION_CODE >>  8) & 0xff,
1142                SAA7134_VERSION_CODE & 0xff);
1143 #ifdef SNAPSHOT
1144         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1145                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1146 #endif
1147         return pci_register_driver(&saa7134_pci_driver);
1148 }
1149
1150 static void saa7134_fini(void)
1151 {
1152 #if defined(CONFIG_MODULES) && defined(MODULE)
1153         if (pending_registered)
1154                 unregister_module_notifier(&pending_notifier);
1155 #endif /* CONFIG_MODULES */
1156         pci_unregister_driver(&saa7134_pci_driver);
1157 }
1158
1159 module_init(saa7134_init);
1160 module_exit(saa7134_fini);
1161
1162 /* ----------------------------------------------------------- */
1163
1164 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1165 EXPORT_SYMBOL(saa7134_devlist);
1166 EXPORT_SYMBOL(saa7134_boards);
1167
1168 /* ----------------- for the DMA sound modules --------------- */
1169
1170 EXPORT_SYMBOL(dmasound_init);
1171 EXPORT_SYMBOL(dmasound_exit);
1172 EXPORT_SYMBOL(saa7134_pgtable_free);
1173 EXPORT_SYMBOL(saa7134_pgtable_build);
1174 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1175 EXPORT_SYMBOL(saa7134_set_dmabits);
1176
1177 /* ----------------------------------------------------------- */
1178 /*
1179  * Local variables:
1180  * c-basic-offset: 8
1181  * End:
1182  */