git.oblomov.eu Git - linux-2.6/blob - 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 #include <linux/dma-mapping.h>
  36
  37 #include "saa7134-reg.h"
  38 #include "saa7134.h"
  39
  40 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  41 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  42 MODULE_LICENSE("GPL");
  43
  44 /* ------------------------------------------------------------------ */
  45
  46 static unsigned int irq_debug = 0;
  47 module_param(irq_debug, int, 0644);
  48 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  49
  50 static unsigned int core_debug = 0;
  51 module_param(core_debug, int, 0644);
  52 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  53
  54 static unsigned int gpio_tracking = 0;
  55 module_param(gpio_tracking, int, 0644);
  56 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  57
  58 static unsigned int alsa = 0;
  59 module_param(alsa, int, 0644);
  60 MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
  61
  62 static unsigned int oss = 0;
  63 module_param(oss, int, 0644);
  64 MODULE_PARM_DESC(oss,"enable OSS DMA sound [dmasound]");
  65
  66 static unsigned int latency = UNSET;
  67 module_param(latency, int, 0444);
  68 MODULE_PARM_DESC(latency,"pci latency timer");
  69
  70 int saa7134_no_overlay=-1;
  71 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  72 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  73                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  74
  75 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  78 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  79 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  80
  81
  82 module_param_array(video_nr, int, NULL, 0444);
  83 module_param_array(vbi_nr,   int, NULL, 0444);
  84 module_param_array(radio_nr, int, NULL, 0444);
  85 module_param_array(tuner,    int, NULL, 0444);
  86 module_param_array(card,     int, NULL, 0444);
  87
  88 MODULE_PARM_DESC(video_nr, "video device number");
  89 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  90 MODULE_PARM_DESC(radio_nr, "radio device number");
  91 MODULE_PARM_DESC(tuner,    "tuner type");
  92 MODULE_PARM_DESC(card,     "card type");
  93
  94 static DEFINE_MUTEX(devlist_lock);
  95 LIST_HEAD(saa7134_devlist);
  96 static LIST_HEAD(mops_list);
  97 static unsigned int saa7134_devcount;
  98
  99 int (*dmasound_init)(struct saa7134_dev *dev);
 100 int (*dmasound_exit)(struct saa7134_dev *dev);
 101
 102 #define dprintk(fmt, arg...)    if (core_debug) \
 103         printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
 104
 105 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 106 {
 107         unsigned long mode,status;
 108
 109         if (!gpio_tracking)
 110                 return;
 111         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 112         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 113         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 114         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 115         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 116         printk(KERN_DEBUG
 117                "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 118                dev->name, mode, (~mode) & status, mode & status, msg);
 119 }
 120
 121 /* ------------------------------------------------------------------ */
 122
 123
 124 /* ----------------------------------------------------------- */
 125 /* delayed request_module                                      */
 126
 127 #if defined(CONFIG_MODULES) && defined(MODULE)
 128 static int need_empress;
 129 static int need_dvb;
 130 static int need_alsa;
 131 static int need_oss;
 132
 133 static int pending_call(struct notifier_block *self, unsigned long state,
 134                         void *module)
 135 {
 136         if (module != THIS_MODULE || state != MODULE_STATE_LIVE)
 137                 return NOTIFY_DONE;
 138
 139         if (need_empress)
 140                 request_module("saa7134-empress");
 141         if (need_dvb)
 142                 request_module("saa7134-dvb");
 143         if (need_alsa)
 144                 request_module("saa7134-alsa");
 145         if (need_oss)
 146                 request_module("saa7134-oss");
 147         return NOTIFY_DONE;
 148 }
 149
 150 static int pending_registered;
 151 static struct notifier_block pending_notifier = {
 152         .notifier_call = pending_call,
 153 };
 154
 155 static void request_module_depend(char *name, int *flag)
 156 {
 157         int err;
 158         switch (THIS_MODULE->state) {
 159         case MODULE_STATE_COMING:
 160                 if (!pending_registered) {
 161                         err = register_module_notifier(&pending_notifier);
 162                         pending_registered = 1;
 163                 }
 164                 *flag = 1;
 165                 break;
 166         case MODULE_STATE_LIVE:
 167                 request_module(name);
 168                 break;
 169         default:
 170                 /* nothing */;
 171                 break;
 172         }
 173 }
 174
 175 #else
 176 #define request_module_depend(name,flag)
 177 #endif /* CONFIG_MODULES */
 178
 179 /* ------------------------------------------------------------------ */
 180
 181 /* nr of (saa7134-)pages for the given buffer size */
 182 static int saa7134_buffer_pages(int size)
 183 {
 184         size  = PAGE_ALIGN(size);
 185         size += PAGE_SIZE; /* for non-page-aligned buffers */
 186         size /= 4096;
 187         return size;
 188 }
 189
 190 /* calc max # of buffers from size (must not exceed the 4MB virtual
 191  * address space per DMA channel) */
 192 int saa7134_buffer_count(unsigned int size, unsigned int count)
 193 {
 194         unsigned int maxcount;
 195
 196         maxcount = 1024 / saa7134_buffer_pages(size);
 197         if (count > maxcount)
 198                 count = maxcount;
 199         return count;
 200 }
 201
 202 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 203 {
 204         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 205 }
 206
 207 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 208 {
 209         unsigned long base;
 210
 211         base  = saa7134_buffer_startpage(buf) * 4096;
 212         base += buf->vb.dma.sglist[0].offset;
 213         return base;
 214 }
 215
 216 /* ------------------------------------------------------------------ */
 217
 218 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 219 {
 220         __le32       *cpu;
 221         dma_addr_t   dma_addr;
 222
 223         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 224         if (NULL == cpu)
 225                 return -ENOMEM;
 226         pt->size = SAA7134_PGTABLE_SIZE;
 227         pt->cpu  = cpu;
 228         pt->dma  = dma_addr;
 229         return 0;
 230 }
 231
 232 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 233                           struct scatterlist *list, unsigned int length,
 234                           unsigned int startpage)
 235 {
 236         __le32        *ptr;
 237         unsigned int  i,p;
 238
 239         BUG_ON(NULL == pt || NULL == pt->cpu);
 240
 241         ptr = pt->cpu + startpage;
 242         for (i = 0; i < length; i++, list++)
 243                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 244                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 245         return 0;
 246 }
 247
 248 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 249 {
 250         if (NULL == pt->cpu)
 251                 return;
 252         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 253         pt->cpu = NULL;
 254 }
 255
 256 /* ------------------------------------------------------------------ */
 257
 258 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 259 {
 260         BUG_ON(in_interrupt());
 261
 262         videobuf_waiton(&buf->vb,0,0);
 263         videobuf_dma_unmap(q, &buf->vb.dma);
 264         videobuf_dma_free(&buf->vb.dma);
 265         buf->vb.state = STATE_NEEDS_INIT;
 266 }
 267
 268 /* ------------------------------------------------------------------ */
 269
 270 int saa7134_buffer_queue(struct saa7134_dev *dev,
 271                          struct saa7134_dmaqueue *q,
 272                          struct saa7134_buf *buf)
 273 {
 274         struct saa7134_buf *next = NULL;
 275
 276         assert_spin_locked(&dev->slock);
 277         dprintk("buffer_queue %p\n",buf);
 278         if (NULL == q->curr) {
 279                 if (!q->need_two) {
 280                         q->curr = buf;
 281                         buf->activate(dev,buf,NULL);
 282                 } else if (list_empty(&q->queue)) {
 283                         list_add_tail(&buf->vb.queue,&q->queue);
 284                         buf->vb.state = STATE_QUEUED;
 285                 } else {
 286                         next = list_entry(q->queue.next,struct saa7134_buf,
 287                                           vb.queue);
 288                         q->curr = buf;
 289                         buf->activate(dev,buf,next);
 290                 }
 291         } else {
 292                 list_add_tail(&buf->vb.queue,&q->queue);
 293                 buf->vb.state = STATE_QUEUED;
 294         }
 295         return 0;
 296 }
 297
 298 void saa7134_buffer_finish(struct saa7134_dev *dev,
 299                            struct saa7134_dmaqueue *q,
 300                            unsigned int state)
 301 {
 302         assert_spin_locked(&dev->slock);
 303         dprintk("buffer_finish %p\n",q->curr);
 304
 305         /* finish current buffer */
 306         q->curr->vb.state = state;
 307         do_gettimeofday(&q->curr->vb.ts);
 308         wake_up(&q->curr->vb.done);
 309         q->curr = NULL;
 310 }
 311
 312 void saa7134_buffer_next(struct saa7134_dev *dev,
 313                          struct saa7134_dmaqueue *q)
 314 {
 315         struct saa7134_buf *buf,*next = NULL;
 316
 317         assert_spin_locked(&dev->slock);
 318         BUG_ON(NULL != q->curr);
 319
 320         if (!list_empty(&q->queue)) {
 321                 /* activate next one from queue */
 322                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 323                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 324                         buf,q->queue.prev,q->queue.next);
 325                 list_del(&buf->vb.queue);
 326                 if (!list_empty(&q->queue))
 327                         next = list_entry(q->queue.next,struct saa7134_buf,
 328                                           vb.queue);
 329                 q->curr = buf;
 330                 buf->activate(dev,buf,next);
 331                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 332                         q->queue.prev,q->queue.next);
 333         } else {
 334                 /* nothing to do -- just stop DMA */
 335                 dprintk("buffer_next %p\n",NULL);
 336                 saa7134_set_dmabits(dev);
 337                 del_timer(&q->timeout);
 338         }
 339 }
 340
 341 void saa7134_buffer_timeout(unsigned long data)
 342 {
 343         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 344         struct saa7134_dev *dev = q->dev;
 345         unsigned long flags;
 346
 347         spin_lock_irqsave(&dev->slock,flags);
 348
 349         /* try to reset the hardware (SWRST) */
 350         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 351         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 352         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 353
 354         /* flag current buffer as failed,
 355            try to start over with the next one. */
 356         if (q->curr) {
 357                 dprintk("timeout on %p\n",q->curr);
 358                 saa7134_buffer_finish(dev,q,STATE_ERROR);
 359         }
 360         saa7134_buffer_next(dev,q);
 361         spin_unlock_irqrestore(&dev->slock,flags);
 362 }
 363
 364 /* ------------------------------------------------------------------ */
 365
 366 int saa7134_set_dmabits(struct saa7134_dev *dev)
 367 {
 368         u32 split, task=0, ctrl=0, irq=0;
 369         enum v4l2_field cap = V4L2_FIELD_ANY;
 370         enum v4l2_field ov  = V4L2_FIELD_ANY;
 371
 372         assert_spin_locked(&dev->slock);
 373
 374         /* video capture -- dma 0 + video task A */
 375         if (dev->video_q.curr) {
 376                 task |= 0x01;
 377                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 378                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 379                         SAA7134_IRQ1_INTE_RA0_0;
 380                 cap = dev->video_q.curr->vb.field;
 381         }
 382
 383         /* video capture -- dma 1+2 (planar modes) */
 384         if (dev->video_q.curr &&
 385             dev->video_q.curr->fmt->planar) {
 386                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 387                         SAA7134_MAIN_CTRL_TE5;
 388         }
 389
 390         /* screen overlay -- dma 0 + video task B */
 391         if (dev->ovenable) {
 392                 task |= 0x10;
 393                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 394                 ov = dev->ovfield;
 395         }
 396
 397         /* vbi capture -- dma 0 + vbi task A+B */
 398         if (dev->vbi_q.curr) {
 399                 task |= 0x22;
 400                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 401                         SAA7134_MAIN_CTRL_TE3;
 402                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 403                         SAA7134_IRQ1_INTE_RA0_6 |
 404                         SAA7134_IRQ1_INTE_RA0_5 |
 405                         SAA7134_IRQ1_INTE_RA0_4;
 406         }
 407
 408         /* audio capture -- dma 3 */
 409         if (dev->dmasound.dma_running) {
 410                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 411                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 412                         SAA7134_IRQ1_INTE_RA3_0;
 413         }
 414
 415         /* TS capture -- dma 5 */
 416         if (dev->ts_q.curr) {
 417                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 418                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 419                         SAA7134_IRQ1_INTE_RA2_2 |
 420                         SAA7134_IRQ1_INTE_RA2_1 |
 421                         SAA7134_IRQ1_INTE_RA2_0;
 422         }
 423
 424         /* set task conditions + field handling */
 425         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 426                 /* default config -- use full frames */
 427                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 428                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 429                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 430                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 431                 split = 0;
 432         } else {
 433                 /* split fields between tasks */
 434                 if (V4L2_FIELD_TOP == cap) {
 435                         /* odd A, even B, repeat */
 436                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 437                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 438                 } else {
 439                         /* odd B, even A, repeat */
 440                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 441                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 442                 }
 443                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 444                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 445                 split = 1;
 446         }
 447
 448         /* irqs */
 449         saa_writeb(SAA7134_REGION_ENABLE, task);
 450         saa_writel(SAA7134_IRQ1,          irq);
 451         saa_andorl(SAA7134_MAIN_CTRL,
 452                    SAA7134_MAIN_CTRL_TE0 |
 453                    SAA7134_MAIN_CTRL_TE1 |
 454                    SAA7134_MAIN_CTRL_TE2 |
 455                    SAA7134_MAIN_CTRL_TE3 |
 456                    SAA7134_MAIN_CTRL_TE4 |
 457                    SAA7134_MAIN_CTRL_TE5 |
 458                    SAA7134_MAIN_CTRL_TE6,
 459                    ctrl);
 460         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 461                 task, ctrl, irq, split ? "no" : "yes");
 462
 463         return 0;
 464 }
 465
 466 /* ------------------------------------------------------------------ */
 467 /* IRQ handler + helpers                                              */
 468
 469 static char *irqbits[] = {
 470         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 471         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 472         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 473         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 474 };
 475 #define IRQBITS ARRAY_SIZE(irqbits)
 476
 477 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 478                             unsigned long report, unsigned long status)
 479 {
 480         unsigned int i;
 481
 482         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 483                dev->name,loop,jiffies,report,status);
 484         for (i = 0; i < IRQBITS; i++) {
 485                 if (!(report & (1 << i)))
 486                         continue;
 487                 printk(" %s",irqbits[i]);
 488         }
 489         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 490                 printk(" | RA0=%s,%s,%s,%ld",
 491                        (status & 0x40) ? "vbi"  : "video",
 492                        (status & 0x20) ? "b"    : "a",
 493                        (status & 0x10) ? "odd"  : "even",
 494                        (status & 0x0f));
 495         }
 496         printk("\n");
 497 }
 498
 499 static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs)
 500 {
 501         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 502         unsigned long report,status;
 503         int loop, handled = 0;
 504
 505         for (loop = 0; loop < 10; loop++) {
 506                 report = saa_readl(SAA7134_IRQ_REPORT);
 507                 status = saa_readl(SAA7134_IRQ_STATUS);
 508                 if (0 == report) {
 509                         if (irq_debug > 1)
 510                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 511                                        dev->name);
 512                         goto out;
 513                 }
 514
 515                 /* If dmasound support is active and we get a sound report, exit
 516                    and let the saa7134-alsa/oss module deal with it */
 517
 518                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 519                         (dev->dmasound.priv_data != NULL) )
 520                 {
 521                         if (irq_debug > 1)
 522                                 printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
 523                                        dev->name);
 524                         goto out;
 525                 }
 526
 527                 handled = 1;
 528                 saa_writel(SAA7134_IRQ_REPORT,report);
 529                 if (irq_debug)
 530                         print_irqstatus(dev,loop,report,status);
 531
 532
 533                 if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */)
 534                         saa7134_irq_video_intl(dev);
 535
 536                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 537                     (status & 0x60) == 0)
 538                         saa7134_irq_video_done(dev,status);
 539
 540                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 541                     (status & 0x40) == 0x40)
 542                         saa7134_irq_vbi_done(dev,status);
 543
 544                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 545                     card_has_mpeg(dev))
 546                         saa7134_irq_ts_done(dev,status);
 547
 548                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 549                         switch (dev->has_remote) {
 550                                 case SAA7134_REMOTE_GPIO:
 551                                         if  (dev->remote->mask_keydown & 0x10000) {
 552                                                 saa7134_input_irq(dev);
 553                                         }
 554                                         break;
 555
 556                                 case SAA7134_REMOTE_I2C:
 557                                         break;                  /* FIXME: invoke I2C get_key() */
 558
 559                                 default:                        /* GPIO16 not used by IR remote */
 560                                         break;
 561                         }
 562                 }
 563
 564                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 565                         switch (dev->has_remote) {
 566                                 case SAA7134_REMOTE_GPIO:
 567                                         if ((dev->remote->mask_keydown & 0x40000) ||
 568                                             (dev->remote->mask_keyup & 0x40000)) {
 569                                                 saa7134_input_irq(dev);
 570                                         }
 571                                         break;
 572
 573                                 case SAA7134_REMOTE_I2C:
 574                                         break;                  /* FIXME: invoke I2C get_key() */
 575
 576                                 default:                        /* GPIO18 not used by IR remote */
 577                                         break;
 578                         }
 579                 }
 580         }
 581
 582         if (10 == loop) {
 583                 print_irqstatus(dev,loop,report,status);
 584                 if (report & SAA7134_IRQ_REPORT_PE) {
 585                         /* disable all parity error */
 586                         printk(KERN_WARNING "%s/irq: looping -- "
 587                                "clearing PE (parity error!) enable bit\n",dev->name);
 588                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 589                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 590                         /* disable gpio16 IRQ */
 591                         printk(KERN_WARNING "%s/irq: looping -- "
 592                                "clearing GPIO16 enable bit\n",dev->name);
 593                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 594                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 595                         /* disable gpio18 IRQs */
 596                         printk(KERN_WARNING "%s/irq: looping -- "
 597                                "clearing GPIO18 enable bit\n",dev->name);
 598                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 599                 } else {
 600                         /* disable all irqs */
 601                         printk(KERN_WARNING "%s/irq: looping -- "
 602                                "clearing all enable bits\n",dev->name);
 603                         saa_writel(SAA7134_IRQ1,0);
 604                         saa_writel(SAA7134_IRQ2,0);
 605                 }
 606         }
 607
 608  out:
 609         return IRQ_RETVAL(handled);
 610 }
 611
 612 /* ------------------------------------------------------------------ */
 613
 614 /* early init (no i2c, no irq) */
 615 static int saa7134_hwinit1(struct saa7134_dev *dev)
 616 {
 617         dprintk("hwinit1\n");
 618
 619         saa_writel(SAA7134_IRQ1, 0);
 620         saa_writel(SAA7134_IRQ2, 0);
 621         mutex_init(&dev->lock);
 622         spin_lock_init(&dev->slock);
 623
 624         saa7134_track_gpio(dev,"pre-init");
 625         saa7134_video_init1(dev);
 626         saa7134_vbi_init1(dev);
 627         if (card_has_mpeg(dev))
 628                 saa7134_ts_init1(dev);
 629         saa7134_input_init1(dev);
 630
 631         /* RAM FIFO config */
 632         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 633         saa_writel(SAA7134_THRESHOULD,0x02020202);
 634
 635         /* enable audio + video processing */
 636         saa_writel(SAA7134_MAIN_CTRL,
 637                    SAA7134_MAIN_CTRL_VPLLE |
 638                    SAA7134_MAIN_CTRL_APLLE |
 639                    SAA7134_MAIN_CTRL_EXOSC |
 640                    SAA7134_MAIN_CTRL_EVFE1 |
 641                    SAA7134_MAIN_CTRL_EVFE2 |
 642                    SAA7134_MAIN_CTRL_ESFE  |
 643                    SAA7134_MAIN_CTRL_EBDAC);
 644
 645         /*
 646          * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 647          * OSS initialization writes to registers via the audio DSP; these
 648          * writes will fail unless the audio clock has been started.  At worst,
 649          * audio will not work.
 650          */
 651
 652         /* enable peripheral devices */
 653         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 654
 655         /* set vertical line numbering start (vbi needs this) */
 656         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 657
 658         return 0;
 659 }
 660
 661 /* late init (with i2c + irq) */
 662 static int saa7134_hwinit2(struct saa7134_dev *dev)
 663 {
 664         unsigned int irq2_mask;
 665         dprintk("hwinit2\n");
 666
 667         saa7134_video_init2(dev);
 668         saa7134_tvaudio_init2(dev);
 669
 670         /* enable IRQ's */
 671         irq2_mask =
 672                 SAA7134_IRQ2_INTE_DEC3    |
 673                 SAA7134_IRQ2_INTE_DEC2    |
 674                 SAA7134_IRQ2_INTE_DEC1    |
 675                 SAA7134_IRQ2_INTE_DEC0    |
 676                 SAA7134_IRQ2_INTE_PE      |
 677                 SAA7134_IRQ2_INTE_AR;
 678
 679         if (dev->has_remote == SAA7134_REMOTE_GPIO) {
 680                 if (dev->remote->mask_keydown & 0x10000)
 681                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 682                 else if (dev->remote->mask_keydown & 0x40000)
 683                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 684                 else if (dev->remote->mask_keyup & 0x40000)
 685                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 686         }
 687
 688         saa_writel(SAA7134_IRQ1, 0);
 689         saa_writel(SAA7134_IRQ2, irq2_mask);
 690
 691         return 0;
 692 }
 693
 694 /* shutdown */
 695 static int saa7134_hwfini(struct saa7134_dev *dev)
 696 {
 697         dprintk("hwfini\n");
 698
 699         if (card_has_mpeg(dev))
 700                 saa7134_ts_fini(dev);
 701         saa7134_input_fini(dev);
 702         saa7134_vbi_fini(dev);
 703         saa7134_video_fini(dev);
 704         saa7134_tvaudio_fini(dev);
 705         return 0;
 706 }
 707
 708 static void __devinit must_configure_manually(void)
 709 {
 710         unsigned int i,p;
 711
 712         printk(KERN_WARNING
 713                "saa7134: <rant>\n"
 714                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 715                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 716                "saa7134:  subsystem ID and I can't identify it automatically\n"
 717                "saa7134: </rant>\n"
 718                "saa7134: I feel better now.  Ok, here are the good news:\n"
 719                "saa7134: You can use the card=<nr> insmod option to specify\n"
 720                "saa7134: which board do you have.  The list:\n");
 721         for (i = 0; i < saa7134_bcount; i++) {
 722                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 723                        i,saa7134_boards[i].name);
 724                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 725                         if (saa7134_pci_tbl[p].driver_data != i)
 726                                 continue;
 727                         printk(" %04x:%04x",
 728                                saa7134_pci_tbl[p].subvendor,
 729                                saa7134_pci_tbl[p].subdevice);
 730                 }
 731                 printk("\n");
 732         }
 733 }
 734
 735 static struct video_device *vdev_init(struct saa7134_dev *dev,
 736                                       struct video_device *template,
 737                                       char *type)
 738 {
 739         struct video_device *vfd;
 740
 741         vfd = video_device_alloc();
 742         if (NULL == vfd)
 743                 return NULL;
 744         *vfd = *template;
 745         vfd->minor   = -1;
 746         vfd->dev     = &dev->pci->dev;
 747         vfd->release = video_device_release;
 748         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 749                  dev->name, type, saa7134_boards[dev->board].name);
 750         return vfd;
 751 }
 752
 753 static void saa7134_unregister_video(struct saa7134_dev *dev)
 754 {
 755         if (dev->video_dev) {
 756                 if (-1 != dev->video_dev->minor)
 757                         video_unregister_device(dev->video_dev);
 758                 else
 759                         video_device_release(dev->video_dev);
 760                 dev->video_dev = NULL;
 761         }
 762         if (dev->vbi_dev) {
 763                 if (-1 != dev->vbi_dev->minor)
 764                         video_unregister_device(dev->vbi_dev);
 765                 else
 766                         video_device_release(dev->vbi_dev);
 767                 dev->vbi_dev = NULL;
 768         }
 769         if (dev->radio_dev) {
 770                 if (-1 != dev->radio_dev->minor)
 771                         video_unregister_device(dev->radio_dev);
 772                 else
 773                         video_device_release(dev->radio_dev);
 774                 dev->radio_dev = NULL;
 775         }
 776 }
 777
 778 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 779                             struct saa7134_dev *dev)
 780 {
 781         int err;
 782
 783         if (NULL != dev->mops)
 784                 return;
 785         if (saa7134_boards[dev->board].mpeg != ops->type)
 786                 return;
 787         err = ops->init(dev);
 788         if (0 != err)
 789                 return;
 790         dev->mops = ops;
 791 }
 792
 793 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 794                             struct saa7134_dev *dev)
 795 {
 796         if (NULL == dev->mops)
 797                 return;
 798         if (dev->mops != ops)
 799                 return;
 800         dev->mops->fini(dev);
 801         dev->mops = NULL;
 802 }
 803
 804 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 805                                      const struct pci_device_id *pci_id)
 806 {
 807         struct saa7134_dev *dev;
 808         struct list_head *item;
 809         struct saa7134_mpeg_ops *mops;
 810         int err;
 811
 812         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 813         if (NULL == dev)
 814                 return -ENOMEM;
 815
 816         /* pci init */
 817         dev->pci = pci_dev;
 818         if (pci_enable_device(pci_dev)) {
 819                 err = -EIO;
 820                 goto fail1;
 821         }
 822
 823         dev->nr = saa7134_devcount;
 824         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 825
 826         /* pci quirks */
 827         if (pci_pci_problems) {
 828                 if (pci_pci_problems & PCIPCI_TRITON)
 829                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 830                 if (pci_pci_problems & PCIPCI_NATOMA)
 831                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 832                 if (pci_pci_problems & PCIPCI_VIAETBF)
 833                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 834                 if (pci_pci_problems & PCIPCI_VSFX)
 835                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 836 #ifdef PCIPCI_ALIMAGIK
 837                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 838                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 839                                dev->name);
 840                         latency = 0x0A;
 841                 }
 842 #endif
 843                 if (pci_pci_problems & PCIPCI_FAIL) {
 844                         printk(KERN_INFO "%s: quirk: this driver and your "
 845                                         "chipset may not work together"
 846                                         " in overlay mode.\n",dev->name);
 847                         if (!saa7134_no_overlay) {
 848                                 printk(KERN_INFO "%s: quirk: overlay "
 849                                                 "mode will be disabled.\n",
 850                                                 dev->name);
 851                                 saa7134_no_overlay = 1;
 852                         } else {
 853                                 printk(KERN_INFO "%s: quirk: overlay "
 854                                                 "mode will be forced. Use this"
 855                                                 " option at your own risk.\n",
 856                                                 dev->name);
 857                         }
 858                 }
 859         }
 860         if (UNSET != latency) {
 861                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 862                        dev->name,latency);
 863                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 864         }
 865
 866         /* print pci info */
 867         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 868         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 869         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 870                "latency: %d, mmio: 0x%lx\n", dev->name,
 871                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 872                dev->pci_lat,pci_resource_start(pci_dev,0));
 873         pci_set_master(pci_dev);
 874         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 875                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 876                 err = -EIO;
 877                 goto fail1;
 878         }
 879
 880         /* board config */
 881         dev->board = pci_id->driver_data;
 882         if (card[dev->nr] >= 0 &&
 883             card[dev->nr] < saa7134_bcount)
 884                 dev->board = card[dev->nr];
 885         if (SAA7134_BOARD_NOAUTO == dev->board) {
 886                 must_configure_manually();
 887                 dev->board = SAA7134_BOARD_UNKNOWN;
 888         }
 889         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 890         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 891         if (UNSET != tuner[dev->nr])
 892                 dev->tuner_type = tuner[dev->nr];
 893         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 894                dev->name,pci_dev->subsystem_vendor,
 895                pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 896                dev->board, card[dev->nr] == dev->board ?
 897                "insmod option" : "autodetected");
 898
 899         /* get mmio */
 900         if (!request_mem_region(pci_resource_start(pci_dev,0),
 901                                 pci_resource_len(pci_dev,0),
 902                                 dev->name)) {
 903                 err = -EBUSY;
 904                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%lx\n",
 905                        dev->name,pci_resource_start(pci_dev,0));
 906                 goto fail1;
 907         }
 908         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 909         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 910         if (NULL == dev->lmmio) {
 911                 err = -EIO;
 912                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 913                        dev->name);
 914                 goto fail2;
 915         }
 916
 917         /* initialize hardware #1 */
 918         saa7134_board_init1(dev);
 919         saa7134_hwinit1(dev);
 920
 921         /* get irq */
 922         err = request_irq(pci_dev->irq, saa7134_irq,
 923                           SA_SHIRQ | SA_INTERRUPT, dev->name, dev);
 924         if (err < 0) {
 925                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 926                        dev->name,pci_dev->irq);
 927                 goto fail3;
 928         }
 929
 930         /* wait a bit, register i2c bus */
 931         msleep(100);
 932         saa7134_i2c_register(dev);
 933
 934         /* initialize hardware #2 */
 935         saa7134_board_init2(dev);
 936         saa7134_hwinit2(dev);
 937
 938         /* load i2c helpers */
 939         if (TUNER_ABSENT != dev->tuner_type)
 940                 request_module("tuner");
 941         if (dev->tda9887_conf)
 942                 request_module("tda9887");
 943         if (card_is_empress(dev)) {
 944                 request_module("saa6752hs");
 945                 request_module_depend("saa7134-empress",&need_empress);
 946         }
 947
 948         if (card_is_dvb(dev))
 949                 request_module_depend("saa7134-dvb",&need_dvb);
 950
 951
 952         if (alsa)
 953                 request_module_depend("saa7134-alsa",&need_alsa);
 954
 955         if (oss)
 956                 request_module_depend("saa7134-oss",&need_oss);
 957
 958         v4l2_prio_init(&dev->prio);
 959
 960         /* register v4l devices */
 961         if (saa7134_no_overlay <= 0) {
 962                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
 963         } else {
 964                 printk("%s: Overlay support disabled.\n",dev->name);
 965         }
 966         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
 967         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
 968                                     video_nr[dev->nr]);
 969         if (err < 0) {
 970                 printk(KERN_INFO "%s: can't register video device\n",
 971                        dev->name);
 972                 goto fail4;
 973         }
 974         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
 975                dev->name,dev->video_dev->minor & 0x1f);
 976
 977         dev->vbi_dev = vdev_init(dev,&saa7134_vbi_template,"vbi");
 978         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
 979                                     vbi_nr[dev->nr]);
 980         if (err < 0)
 981                 goto fail4;
 982         printk(KERN_INFO "%s: registered device vbi%d\n",
 983                dev->name,dev->vbi_dev->minor & 0x1f);
 984
 985         if (card_has_radio(dev)) {
 986                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
 987                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
 988                                             radio_nr[dev->nr]);
 989                 if (err < 0)
 990                         goto fail4;
 991                 printk(KERN_INFO "%s: registered device radio%d\n",
 992                        dev->name,dev->radio_dev->minor & 0x1f);
 993         }
 994
 995         /* everything worked */
 996         pci_set_drvdata(pci_dev,dev);
 997         saa7134_devcount++;
 998
 999         mutex_lock(&devlist_lock);
1000         list_for_each(item,&mops_list) {
1001                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1002                 mpeg_ops_attach(mops, dev);
1003         }
1004         list_add_tail(&dev->devlist,&saa7134_devlist);
1005         mutex_unlock(&devlist_lock);
1006
1007         /* check for signal */
1008         saa7134_irq_video_intl(dev);
1009
1010         if (dmasound_init && !dev->dmasound.priv_data) {
1011                 dmasound_init(dev);
1012         }
1013
1014         return 0;
1015
1016  fail4:
1017         saa7134_unregister_video(dev);
1018         saa7134_i2c_unregister(dev);
1019         free_irq(pci_dev->irq, dev);
1020  fail3:
1021         saa7134_hwfini(dev);
1022         iounmap(dev->lmmio);
1023  fail2:
1024         release_mem_region(pci_resource_start(pci_dev,0),
1025                            pci_resource_len(pci_dev,0));
1026  fail1:
1027         kfree(dev);
1028         return err;
1029 }
1030
1031 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1032 {
1033         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1034         struct list_head *item;
1035         struct saa7134_mpeg_ops *mops;
1036
1037         /* Release DMA sound modules if present */
1038         if (dmasound_exit && dev->dmasound.priv_data) {
1039                 dmasound_exit(dev);
1040         }
1041
1042         /* debugging ... */
1043         if (irq_debug) {
1044                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1045                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1046                 print_irqstatus(dev,42,report,status);
1047         }
1048
1049         /* disable peripheral devices */
1050         saa_writeb(SAA7134_SPECIAL_MODE,0);
1051
1052         /* shutdown hardware */
1053         saa_writel(SAA7134_IRQ1,0);
1054         saa_writel(SAA7134_IRQ2,0);
1055         saa_writel(SAA7134_MAIN_CTRL,0);
1056
1057         /* shutdown subsystems */
1058         saa7134_hwfini(dev);
1059
1060         /* unregister */
1061         mutex_lock(&devlist_lock);
1062         list_del(&dev->devlist);
1063         list_for_each(item,&mops_list) {
1064                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1065                 mpeg_ops_detach(mops, dev);
1066         }
1067         mutex_unlock(&devlist_lock);
1068         saa7134_devcount--;
1069
1070         saa7134_i2c_unregister(dev);
1071         saa7134_unregister_video(dev);
1072
1073
1074         /* the DMA sound modules should be unloaded before reaching
1075            this, but just in case they are still present... */
1076         if (dev->dmasound.priv_data != NULL) {
1077                 free_irq(pci_dev->irq, &dev->dmasound);
1078                 dev->dmasound.priv_data = NULL;
1079         }
1080
1081
1082         /* release resources */
1083         free_irq(pci_dev->irq, dev);
1084         iounmap(dev->lmmio);
1085         release_mem_region(pci_resource_start(pci_dev,0),
1086                            pci_resource_len(pci_dev,0));
1087
1088         pci_set_drvdata(pci_dev, NULL);
1089
1090         /* free memory */
1091         kfree(dev);
1092 }
1093
1094 /* ----------------------------------------------------------- */
1095
1096 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1097 {
1098         struct list_head *item;
1099         struct saa7134_dev *dev;
1100
1101         mutex_lock(&devlist_lock);
1102         list_for_each(item,&saa7134_devlist) {
1103                 dev = list_entry(item, struct saa7134_dev, devlist);
1104                 mpeg_ops_attach(ops, dev);
1105         }
1106         list_add_tail(&ops->next,&mops_list);
1107         mutex_unlock(&devlist_lock);
1108         return 0;
1109 }
1110
1111 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1112 {
1113         struct list_head *item;
1114         struct saa7134_dev *dev;
1115
1116         mutex_lock(&devlist_lock);
1117         list_del(&ops->next);
1118         list_for_each(item,&saa7134_devlist) {
1119                 dev = list_entry(item, struct saa7134_dev, devlist);
1120                 mpeg_ops_detach(ops, dev);
1121         }
1122         mutex_unlock(&devlist_lock);
1123 }
1124
1125 EXPORT_SYMBOL(saa7134_ts_register);
1126 EXPORT_SYMBOL(saa7134_ts_unregister);
1127
1128 /* ----------------------------------------------------------- */
1129
1130 static struct pci_driver saa7134_pci_driver = {
1131         .name     = "saa7134",
1132         .id_table = saa7134_pci_tbl,
1133         .probe    = saa7134_initdev,
1134         .remove   = __devexit_p(saa7134_finidev),
1135 };
1136
1137 static int saa7134_init(void)
1138 {
1139         INIT_LIST_HEAD(&saa7134_devlist);
1140         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1141                (SAA7134_VERSION_CODE >> 16) & 0xff,
1142                (SAA7134_VERSION_CODE >>  8) & 0xff,
1143                SAA7134_VERSION_CODE & 0xff);
1144 #ifdef SNAPSHOT
1145         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1146                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1147 #endif
1148         return pci_register_driver(&saa7134_pci_driver);
1149 }
1150
1151 static void saa7134_fini(void)
1152 {
1153 #if defined(CONFIG_MODULES) && defined(MODULE)
1154         if (pending_registered)
1155                 unregister_module_notifier(&pending_notifier);
1156 #endif /* CONFIG_MODULES */
1157         pci_unregister_driver(&saa7134_pci_driver);
1158 }
1159
1160 module_init(saa7134_init);
1161 module_exit(saa7134_fini);
1162
1163 /* ----------------------------------------------------------- */
1164
1165 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1166 EXPORT_SYMBOL(saa7134_devlist);
1167 EXPORT_SYMBOL(saa7134_boards);
1168
1169 /* ----------------- for the DMA sound modules --------------- */
1170
1171 EXPORT_SYMBOL(dmasound_init);
1172 EXPORT_SYMBOL(dmasound_exit);
1173 EXPORT_SYMBOL(saa7134_pgtable_free);
1174 EXPORT_SYMBOL(saa7134_pgtable_build);
1175 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1176 EXPORT_SYMBOL(saa7134_set_dmabits);
1177
1178 /* ----------------------------------------------------------- */
1179 /*
1180  * Local variables:
1181  * c-basic-offset: 8
1182  * End:
1183  */