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/init.h>
  24 #include <linux/list.h>
  25 #include <linux/module.h>
  26 #include <linux/kernel.h>
  27 #include <linux/slab.h>
  28 #include <linux/kmod.h>
  29 #include <linux/sound.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/delay.h>
  32 #include <linux/mutex.h>
  33 #include <linux/dma-mapping.h>
  34
  35 #include "saa7134-reg.h"
  36 #include "saa7134.h"
  37
  38 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  39 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  40 MODULE_LICENSE("GPL");
  41
  42 /* ------------------------------------------------------------------ */
  43
  44 static unsigned int irq_debug = 0;
  45 module_param(irq_debug, int, 0644);
  46 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  47
  48 static unsigned int core_debug = 0;
  49 module_param(core_debug, int, 0644);
  50 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  51
  52 static unsigned int gpio_tracking = 0;
  53 module_param(gpio_tracking, int, 0644);
  54 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  55
  56 static unsigned int alsa = 0;
  57 module_param(alsa, int, 0644);
  58 MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
  59
  60 static unsigned int oss = 0;
  61 module_param(oss, int, 0644);
  62 MODULE_PARM_DESC(oss,"enable OSS DMA sound [dmasound]");
  63
  64 static unsigned int latency = UNSET;
  65 module_param(latency, int, 0444);
  66 MODULE_PARM_DESC(latency,"pci latency timer");
  67
  68 int saa7134_no_overlay=-1;
  69 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  70 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  71                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  72
  73 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  74 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  78
  79
  80 module_param_array(video_nr, int, NULL, 0444);
  81 module_param_array(vbi_nr,   int, NULL, 0444);
  82 module_param_array(radio_nr, int, NULL, 0444);
  83 module_param_array(tuner,    int, NULL, 0444);
  84 module_param_array(card,     int, NULL, 0444);
  85
  86 MODULE_PARM_DESC(video_nr, "video device number");
  87 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  88 MODULE_PARM_DESC(radio_nr, "radio device number");
  89 MODULE_PARM_DESC(tuner,    "tuner type");
  90 MODULE_PARM_DESC(card,     "card type");
  91
  92 static DEFINE_MUTEX(devlist_lock);
  93 LIST_HEAD(saa7134_devlist);
  94 static LIST_HEAD(mops_list);
  95 static unsigned int saa7134_devcount;
  96
  97 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  98 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  99
 100 #define dprintk(fmt, arg...)    if (core_debug) \
 101         printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
 102
 103 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 104 {
 105         unsigned long mode,status;
 106
 107         if (!gpio_tracking)
 108                 return;
 109         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 110         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 111         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 112         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 113         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 114         printk(KERN_DEBUG
 115                "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 116                dev->name, mode, (~mode) & status, mode & status, msg);
 117 }
 118
 119 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 120 {
 121         u32 index, bitval;
 122
 123         index = 1 << bit_no;
 124         switch (value) {
 125         case 0: /* static value */
 126         case 1: dprintk("setting GPIO%d to static %d\n", bit_no, value);
 127                 /* turn sync mode off if necessary */
 128                 if (index & 0x00c00000)
 129                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 130                 if (value)
 131                         bitval = index;
 132                 else
 133                         bitval = 0;
 134                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 135                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 136                 break;
 137         case 3: /* tristate */
 138                 dprintk("setting GPIO%d to tristate\n", bit_no);
 139                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 140                 break;
 141         }
 142 }
 143
 144 int saa7134_tuner_callback(void *ptr, int command, int arg)
 145 {
 146         u8 sync_control;
 147         struct saa7134_dev *dev = ptr;
 148
 149         switch (dev->tuner_type) {
 150         case TUNER_PHILIPS_TDA8290:
 151                 switch (command) {
 152                 case 0: /* switch LNA gain through GPIO 22*/
 153                         saa7134_set_gpio(dev, 22, arg) ;
 154                         break;
 155                 case 1: /* vsync output at GPIO22. 50 / 60Hz */
 156                         dprintk("setting GPIO22 to vsync %d\n", arg);
 157                         saa_andorb(SAA7134_VIDEO_PORT_CTRL3, 0x80, 0x80);
 158                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x03);
 159                         if (arg == 1)
 160                                 sync_control = 11;
 161                         else
 162                                 sync_control = 17;
 163                         saa_writeb(SAA7134_VGATE_START, sync_control);
 164                         saa_writeb(SAA7134_VGATE_STOP, sync_control + 1);
 165                         saa_andorb(SAA7134_MISC_VGATE_MSB, 0x03, 0x00);
 166                         break;
 167                 default:
 168                         return -EINVAL;
 169                 }
 170                 break;
 171         default:
 172                 return -ENODEV;
 173         }
 174         return 0;
 175 }
 176
 177 /* ------------------------------------------------------------------ */
 178
 179
 180 /* ----------------------------------------------------------- */
 181 /* delayed request_module                                      */
 182
 183 #if defined(CONFIG_MODULES) && defined(MODULE)
 184
 185
 186 static void request_module_async(struct work_struct *work){
 187         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 188         if (card_is_empress(dev))
 189                 request_module("saa7134-empress");
 190         if (card_is_dvb(dev))
 191                 request_module("saa7134-dvb");
 192         if (alsa)
 193                 request_module("saa7134-alsa");
 194         if (oss)
 195                 request_module("saa7134-oss");
 196 }
 197
 198 static void request_submodules(struct saa7134_dev *dev)
 199 {
 200         INIT_WORK(&dev->request_module_wk, request_module_async);
 201         schedule_work(&dev->request_module_wk);
 202 }
 203
 204 #else
 205 #define request_submodules(dev)
 206 #endif /* CONFIG_MODULES */
 207
 208 /* ------------------------------------------------------------------ */
 209
 210 /* nr of (saa7134-)pages for the given buffer size */
 211 static int saa7134_buffer_pages(int size)
 212 {
 213         size  = PAGE_ALIGN(size);
 214         size += PAGE_SIZE; /* for non-page-aligned buffers */
 215         size /= 4096;
 216         return size;
 217 }
 218
 219 /* calc max # of buffers from size (must not exceed the 4MB virtual
 220  * address space per DMA channel) */
 221 int saa7134_buffer_count(unsigned int size, unsigned int count)
 222 {
 223         unsigned int maxcount;
 224
 225         maxcount = 1024 / saa7134_buffer_pages(size);
 226         if (count > maxcount)
 227                 count = maxcount;
 228         return count;
 229 }
 230
 231 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 232 {
 233         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 234 }
 235
 236 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 237 {
 238         unsigned long base;
 239
 240         base  = saa7134_buffer_startpage(buf) * 4096;
 241         base += buf->vb.dma.sglist[0].offset;
 242         return base;
 243 }
 244
 245 /* ------------------------------------------------------------------ */
 246
 247 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 248 {
 249         __le32       *cpu;
 250         dma_addr_t   dma_addr;
 251
 252         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 253         if (NULL == cpu)
 254                 return -ENOMEM;
 255         pt->size = SAA7134_PGTABLE_SIZE;
 256         pt->cpu  = cpu;
 257         pt->dma  = dma_addr;
 258         return 0;
 259 }
 260
 261 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 262                           struct scatterlist *list, unsigned int length,
 263                           unsigned int startpage)
 264 {
 265         __le32        *ptr;
 266         unsigned int  i,p;
 267
 268         BUG_ON(NULL == pt || NULL == pt->cpu);
 269
 270         ptr = pt->cpu + startpage;
 271         for (i = 0; i < length; i++, list++)
 272                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 273                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 274         return 0;
 275 }
 276
 277 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 278 {
 279         if (NULL == pt->cpu)
 280                 return;
 281         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 282         pt->cpu = NULL;
 283 }
 284
 285 /* ------------------------------------------------------------------ */
 286
 287 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 288 {
 289         BUG_ON(in_interrupt());
 290
 291         videobuf_waiton(&buf->vb,0,0);
 292         videobuf_dma_unmap(q, &buf->vb.dma);
 293         videobuf_dma_free(&buf->vb.dma);
 294         buf->vb.state = STATE_NEEDS_INIT;
 295 }
 296
 297 /* ------------------------------------------------------------------ */
 298
 299 int saa7134_buffer_queue(struct saa7134_dev *dev,
 300                          struct saa7134_dmaqueue *q,
 301                          struct saa7134_buf *buf)
 302 {
 303         struct saa7134_buf *next = NULL;
 304
 305         assert_spin_locked(&dev->slock);
 306         dprintk("buffer_queue %p\n",buf);
 307         if (NULL == q->curr) {
 308                 if (!q->need_two) {
 309                         q->curr = buf;
 310                         buf->activate(dev,buf,NULL);
 311                 } else if (list_empty(&q->queue)) {
 312                         list_add_tail(&buf->vb.queue,&q->queue);
 313                         buf->vb.state = STATE_QUEUED;
 314                 } else {
 315                         next = list_entry(q->queue.next,struct saa7134_buf,
 316                                           vb.queue);
 317                         q->curr = buf;
 318                         buf->activate(dev,buf,next);
 319                 }
 320         } else {
 321                 list_add_tail(&buf->vb.queue,&q->queue);
 322                 buf->vb.state = STATE_QUEUED;
 323         }
 324         return 0;
 325 }
 326
 327 void saa7134_buffer_finish(struct saa7134_dev *dev,
 328                            struct saa7134_dmaqueue *q,
 329                            unsigned int state)
 330 {
 331         assert_spin_locked(&dev->slock);
 332         dprintk("buffer_finish %p\n",q->curr);
 333
 334         /* finish current buffer */
 335         q->curr->vb.state = state;
 336         do_gettimeofday(&q->curr->vb.ts);
 337         wake_up(&q->curr->vb.done);
 338         q->curr = NULL;
 339 }
 340
 341 void saa7134_buffer_next(struct saa7134_dev *dev,
 342                          struct saa7134_dmaqueue *q)
 343 {
 344         struct saa7134_buf *buf,*next = NULL;
 345
 346         assert_spin_locked(&dev->slock);
 347         BUG_ON(NULL != q->curr);
 348
 349         if (!list_empty(&q->queue)) {
 350                 /* activate next one from queue */
 351                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 352                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 353                         buf,q->queue.prev,q->queue.next);
 354                 list_del(&buf->vb.queue);
 355                 if (!list_empty(&q->queue))
 356                         next = list_entry(q->queue.next,struct saa7134_buf,
 357                                           vb.queue);
 358                 q->curr = buf;
 359                 buf->activate(dev,buf,next);
 360                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 361                         q->queue.prev,q->queue.next);
 362         } else {
 363                 /* nothing to do -- just stop DMA */
 364                 dprintk("buffer_next %p\n",NULL);
 365                 saa7134_set_dmabits(dev);
 366                 del_timer(&q->timeout);
 367         }
 368 }
 369
 370 void saa7134_buffer_timeout(unsigned long data)
 371 {
 372         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 373         struct saa7134_dev *dev = q->dev;
 374         unsigned long flags;
 375
 376         spin_lock_irqsave(&dev->slock,flags);
 377
 378         /* try to reset the hardware (SWRST) */
 379         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 380         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 381         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 382
 383         /* flag current buffer as failed,
 384            try to start over with the next one. */
 385         if (q->curr) {
 386                 dprintk("timeout on %p\n",q->curr);
 387                 saa7134_buffer_finish(dev,q,STATE_ERROR);
 388         }
 389         saa7134_buffer_next(dev,q);
 390         spin_unlock_irqrestore(&dev->slock,flags);
 391 }
 392
 393 /* ------------------------------------------------------------------ */
 394
 395 int saa7134_set_dmabits(struct saa7134_dev *dev)
 396 {
 397         u32 split, task=0, ctrl=0, irq=0;
 398         enum v4l2_field cap = V4L2_FIELD_ANY;
 399         enum v4l2_field ov  = V4L2_FIELD_ANY;
 400
 401         assert_spin_locked(&dev->slock);
 402
 403         /* video capture -- dma 0 + video task A */
 404         if (dev->video_q.curr) {
 405                 task |= 0x01;
 406                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 407                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 408                         SAA7134_IRQ1_INTE_RA0_0;
 409                 cap = dev->video_q.curr->vb.field;
 410         }
 411
 412         /* video capture -- dma 1+2 (planar modes) */
 413         if (dev->video_q.curr &&
 414             dev->video_q.curr->fmt->planar) {
 415                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 416                         SAA7134_MAIN_CTRL_TE5;
 417         }
 418
 419         /* screen overlay -- dma 0 + video task B */
 420         if (dev->ovenable) {
 421                 task |= 0x10;
 422                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 423                 ov = dev->ovfield;
 424         }
 425
 426         /* vbi capture -- dma 0 + vbi task A+B */
 427         if (dev->vbi_q.curr) {
 428                 task |= 0x22;
 429                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 430                         SAA7134_MAIN_CTRL_TE3;
 431                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 432                         SAA7134_IRQ1_INTE_RA0_6 |
 433                         SAA7134_IRQ1_INTE_RA0_5 |
 434                         SAA7134_IRQ1_INTE_RA0_4;
 435         }
 436
 437         /* audio capture -- dma 3 */
 438         if (dev->dmasound.dma_running) {
 439                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 440                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 441                         SAA7134_IRQ1_INTE_RA3_0;
 442         }
 443
 444         /* TS capture -- dma 5 */
 445         if (dev->ts_q.curr) {
 446                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 447                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 448                         SAA7134_IRQ1_INTE_RA2_2 |
 449                         SAA7134_IRQ1_INTE_RA2_1 |
 450                         SAA7134_IRQ1_INTE_RA2_0;
 451         }
 452
 453         /* set task conditions + field handling */
 454         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 455                 /* default config -- use full frames */
 456                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 457                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 458                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 459                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 460                 split = 0;
 461         } else {
 462                 /* split fields between tasks */
 463                 if (V4L2_FIELD_TOP == cap) {
 464                         /* odd A, even B, repeat */
 465                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 466                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 467                 } else {
 468                         /* odd B, even A, repeat */
 469                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 470                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 471                 }
 472                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 473                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 474                 split = 1;
 475         }
 476
 477         /* irqs */
 478         saa_writeb(SAA7134_REGION_ENABLE, task);
 479         saa_writel(SAA7134_IRQ1,          irq);
 480         saa_andorl(SAA7134_MAIN_CTRL,
 481                    SAA7134_MAIN_CTRL_TE0 |
 482                    SAA7134_MAIN_CTRL_TE1 |
 483                    SAA7134_MAIN_CTRL_TE2 |
 484                    SAA7134_MAIN_CTRL_TE3 |
 485                    SAA7134_MAIN_CTRL_TE4 |
 486                    SAA7134_MAIN_CTRL_TE5 |
 487                    SAA7134_MAIN_CTRL_TE6,
 488                    ctrl);
 489         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 490                 task, ctrl, irq, split ? "no" : "yes");
 491
 492         return 0;
 493 }
 494
 495 /* ------------------------------------------------------------------ */
 496 /* IRQ handler + helpers                                              */
 497
 498 static char *irqbits[] = {
 499         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 500         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 501         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 502         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 503 };
 504 #define IRQBITS ARRAY_SIZE(irqbits)
 505
 506 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 507                             unsigned long report, unsigned long status)
 508 {
 509         unsigned int i;
 510
 511         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 512                dev->name,loop,jiffies,report,status);
 513         for (i = 0; i < IRQBITS; i++) {
 514                 if (!(report & (1 << i)))
 515                         continue;
 516                 printk(" %s",irqbits[i]);
 517         }
 518         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 519                 printk(" | RA0=%s,%s,%s,%ld",
 520                        (status & 0x40) ? "vbi"  : "video",
 521                        (status & 0x20) ? "b"    : "a",
 522                        (status & 0x10) ? "odd"  : "even",
 523                        (status & 0x0f));
 524         }
 525         printk("\n");
 526 }
 527
 528 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 529 {
 530         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 531         unsigned long report,status;
 532         int loop, handled = 0;
 533
 534         for (loop = 0; loop < 10; loop++) {
 535                 report = saa_readl(SAA7134_IRQ_REPORT);
 536                 status = saa_readl(SAA7134_IRQ_STATUS);
 537                 if (0 == report) {
 538                         if (irq_debug > 1)
 539                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 540                                        dev->name);
 541                         goto out;
 542                 }
 543
 544                 /* If dmasound support is active and we get a sound report, exit
 545                    and let the saa7134-alsa/oss module deal with it */
 546
 547                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 548                         (dev->dmasound.priv_data != NULL) )
 549                 {
 550                         if (irq_debug > 1)
 551                                 printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
 552                                        dev->name);
 553                         goto out;
 554                 }
 555
 556                 handled = 1;
 557                 saa_writel(SAA7134_IRQ_REPORT,report);
 558                 if (irq_debug)
 559                         print_irqstatus(dev,loop,report,status);
 560
 561
 562                 if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */)
 563                         saa7134_irq_video_intl(dev);
 564
 565                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 566                     (status & 0x60) == 0)
 567                         saa7134_irq_video_done(dev,status);
 568
 569                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 570                     (status & 0x40) == 0x40)
 571                         saa7134_irq_vbi_done(dev,status);
 572
 573                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 574                     card_has_mpeg(dev))
 575                         saa7134_irq_ts_done(dev,status);
 576
 577                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 578                         switch (dev->has_remote) {
 579                                 case SAA7134_REMOTE_GPIO:
 580                                         if (!dev->remote)
 581                                                 break;
 582                                         if  (dev->remote->mask_keydown & 0x10000) {
 583                                                 saa7134_input_irq(dev);
 584                                         }
 585                                         break;
 586
 587                                 case SAA7134_REMOTE_I2C:
 588                                         break;                  /* FIXME: invoke I2C get_key() */
 589
 590                                 default:                        /* GPIO16 not used by IR remote */
 591                                         break;
 592                         }
 593                 }
 594
 595                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 596                         switch (dev->has_remote) {
 597                                 case SAA7134_REMOTE_GPIO:
 598                                         if (!dev->remote)
 599                                                 break;
 600                                         if ((dev->remote->mask_keydown & 0x40000) ||
 601                                             (dev->remote->mask_keyup & 0x40000)) {
 602                                                 saa7134_input_irq(dev);
 603                                         }
 604                                         break;
 605
 606                                 case SAA7134_REMOTE_I2C:
 607                                         break;                  /* FIXME: invoke I2C get_key() */
 608
 609                                 default:                        /* GPIO18 not used by IR remote */
 610                                         break;
 611                         }
 612                 }
 613         }
 614
 615         if (10 == loop) {
 616                 print_irqstatus(dev,loop,report,status);
 617                 if (report & SAA7134_IRQ_REPORT_PE) {
 618                         /* disable all parity error */
 619                         printk(KERN_WARNING "%s/irq: looping -- "
 620                                "clearing PE (parity error!) enable bit\n",dev->name);
 621                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 622                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 623                         /* disable gpio16 IRQ */
 624                         printk(KERN_WARNING "%s/irq: looping -- "
 625                                "clearing GPIO16 enable bit\n",dev->name);
 626                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 627                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 628                         /* disable gpio18 IRQs */
 629                         printk(KERN_WARNING "%s/irq: looping -- "
 630                                "clearing GPIO18 enable bit\n",dev->name);
 631                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 632                 } else {
 633                         /* disable all irqs */
 634                         printk(KERN_WARNING "%s/irq: looping -- "
 635                                "clearing all enable bits\n",dev->name);
 636                         saa_writel(SAA7134_IRQ1,0);
 637                         saa_writel(SAA7134_IRQ2,0);
 638                 }
 639         }
 640
 641  out:
 642         return IRQ_RETVAL(handled);
 643 }
 644
 645 /* ------------------------------------------------------------------ */
 646
 647 /* early init (no i2c, no irq) */
 648 static int saa7134_hwinit1(struct saa7134_dev *dev)
 649 {
 650         dprintk("hwinit1\n");
 651
 652         saa_writel(SAA7134_IRQ1, 0);
 653         saa_writel(SAA7134_IRQ2, 0);
 654         mutex_init(&dev->lock);
 655         spin_lock_init(&dev->slock);
 656
 657         saa7134_track_gpio(dev,"pre-init");
 658         saa7134_video_init1(dev);
 659         saa7134_vbi_init1(dev);
 660         if (card_has_mpeg(dev))
 661                 saa7134_ts_init1(dev);
 662         saa7134_input_init1(dev);
 663
 664         /* RAM FIFO config */
 665         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 666         saa_writel(SAA7134_THRESHOULD,0x02020202);
 667
 668         /* enable audio + video processing */
 669         saa_writel(SAA7134_MAIN_CTRL,
 670                    SAA7134_MAIN_CTRL_VPLLE |
 671                    SAA7134_MAIN_CTRL_APLLE |
 672                    SAA7134_MAIN_CTRL_EXOSC |
 673                    SAA7134_MAIN_CTRL_EVFE1 |
 674                    SAA7134_MAIN_CTRL_EVFE2 |
 675                    SAA7134_MAIN_CTRL_ESFE  |
 676                    SAA7134_MAIN_CTRL_EBDAC);
 677
 678         /*
 679          * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 680          * OSS initialization writes to registers via the audio DSP; these
 681          * writes will fail unless the audio clock has been started.  At worst,
 682          * audio will not work.
 683          */
 684
 685         /* enable peripheral devices */
 686         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 687
 688         /* set vertical line numbering start (vbi needs this) */
 689         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 690
 691         return 0;
 692 }
 693
 694 /* late init (with i2c + irq) */
 695 static int saa7134_hwinit2(struct saa7134_dev *dev)
 696 {
 697         unsigned int irq2_mask;
 698         dprintk("hwinit2\n");
 699
 700         saa7134_video_init2(dev);
 701         saa7134_tvaudio_init2(dev);
 702
 703         /* enable IRQ's */
 704         irq2_mask =
 705                 SAA7134_IRQ2_INTE_DEC3    |
 706                 SAA7134_IRQ2_INTE_DEC2    |
 707                 SAA7134_IRQ2_INTE_DEC1    |
 708                 SAA7134_IRQ2_INTE_DEC0    |
 709                 SAA7134_IRQ2_INTE_PE      |
 710                 SAA7134_IRQ2_INTE_AR;
 711
 712         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 713                 if (dev->remote->mask_keydown & 0x10000)
 714                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 715                 else if (dev->remote->mask_keydown & 0x40000)
 716                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 717                 else if (dev->remote->mask_keyup & 0x40000)
 718                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 719         }
 720
 721         saa_writel(SAA7134_IRQ1, 0);
 722         saa_writel(SAA7134_IRQ2, irq2_mask);
 723
 724         return 0;
 725 }
 726
 727 /* shutdown */
 728 static int saa7134_hwfini(struct saa7134_dev *dev)
 729 {
 730         dprintk("hwfini\n");
 731
 732         if (card_has_mpeg(dev))
 733                 saa7134_ts_fini(dev);
 734         saa7134_input_fini(dev);
 735         saa7134_vbi_fini(dev);
 736         saa7134_tvaudio_fini(dev);
 737         return 0;
 738 }
 739
 740 static void __devinit must_configure_manually(void)
 741 {
 742         unsigned int i,p;
 743
 744         printk(KERN_WARNING
 745                "saa7134: <rant>\n"
 746                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 747                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 748                "saa7134:  subsystem ID and I can't identify it automatically\n"
 749                "saa7134: </rant>\n"
 750                "saa7134: I feel better now.  Ok, here are the good news:\n"
 751                "saa7134: You can use the card=<nr> insmod option to specify\n"
 752                "saa7134: which board do you have.  The list:\n");
 753         for (i = 0; i < saa7134_bcount; i++) {
 754                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 755                        i,saa7134_boards[i].name);
 756                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 757                         if (saa7134_pci_tbl[p].driver_data != i)
 758                                 continue;
 759                         printk(" %04x:%04x",
 760                                saa7134_pci_tbl[p].subvendor,
 761                                saa7134_pci_tbl[p].subdevice);
 762                 }
 763                 printk("\n");
 764         }
 765 }
 766
 767 static struct video_device *vdev_init(struct saa7134_dev *dev,
 768                                       struct video_device *template,
 769                                       char *type)
 770 {
 771         struct video_device *vfd;
 772
 773         vfd = video_device_alloc();
 774         if (NULL == vfd)
 775                 return NULL;
 776         *vfd = *template;
 777         vfd->minor   = -1;
 778         vfd->dev     = &dev->pci->dev;
 779         vfd->release = video_device_release;
 780         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 781                  dev->name, type, saa7134_boards[dev->board].name);
 782         return vfd;
 783 }
 784
 785 static void saa7134_unregister_video(struct saa7134_dev *dev)
 786 {
 787         if (dev->video_dev) {
 788                 if (-1 != dev->video_dev->minor)
 789                         video_unregister_device(dev->video_dev);
 790                 else
 791                         video_device_release(dev->video_dev);
 792                 dev->video_dev = NULL;
 793         }
 794         if (dev->vbi_dev) {
 795                 if (-1 != dev->vbi_dev->minor)
 796                         video_unregister_device(dev->vbi_dev);
 797                 else
 798                         video_device_release(dev->vbi_dev);
 799                 dev->vbi_dev = NULL;
 800         }
 801         if (dev->radio_dev) {
 802                 if (-1 != dev->radio_dev->minor)
 803                         video_unregister_device(dev->radio_dev);
 804                 else
 805                         video_device_release(dev->radio_dev);
 806                 dev->radio_dev = NULL;
 807         }
 808 }
 809
 810 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 811                             struct saa7134_dev *dev)
 812 {
 813         int err;
 814
 815         if (NULL != dev->mops)
 816                 return;
 817         if (saa7134_boards[dev->board].mpeg != ops->type)
 818                 return;
 819         err = ops->init(dev);
 820         if (0 != err)
 821                 return;
 822         dev->mops = ops;
 823 }
 824
 825 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 826                             struct saa7134_dev *dev)
 827 {
 828         if (NULL == dev->mops)
 829                 return;
 830         if (dev->mops != ops)
 831                 return;
 832         dev->mops->fini(dev);
 833         dev->mops = NULL;
 834 }
 835
 836 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 837                                      const struct pci_device_id *pci_id)
 838 {
 839         struct saa7134_dev *dev;
 840         struct list_head *item;
 841         struct saa7134_mpeg_ops *mops;
 842         int err;
 843
 844         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 845         if (NULL == dev)
 846                 return -ENOMEM;
 847
 848         /* pci init */
 849         dev->pci = pci_dev;
 850         if (pci_enable_device(pci_dev)) {
 851                 err = -EIO;
 852                 goto fail1;
 853         }
 854
 855         dev->nr = saa7134_devcount;
 856         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 857
 858         /* pci quirks */
 859         if (pci_pci_problems) {
 860                 if (pci_pci_problems & PCIPCI_TRITON)
 861                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 862                 if (pci_pci_problems & PCIPCI_NATOMA)
 863                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 864                 if (pci_pci_problems & PCIPCI_VIAETBF)
 865                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 866                 if (pci_pci_problems & PCIPCI_VSFX)
 867                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 868 #ifdef PCIPCI_ALIMAGIK
 869                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 870                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 871                                dev->name);
 872                         latency = 0x0A;
 873                 }
 874 #endif
 875                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 876                         printk(KERN_INFO "%s: quirk: this driver and your "
 877                                         "chipset may not work together"
 878                                         " in overlay mode.\n",dev->name);
 879                         if (!saa7134_no_overlay) {
 880                                 printk(KERN_INFO "%s: quirk: overlay "
 881                                                 "mode will be disabled.\n",
 882                                                 dev->name);
 883                                 saa7134_no_overlay = 1;
 884                         } else {
 885                                 printk(KERN_INFO "%s: quirk: overlay "
 886                                                 "mode will be forced. Use this"
 887                                                 " option at your own risk.\n",
 888                                                 dev->name);
 889                         }
 890                 }
 891         }
 892         if (UNSET != latency) {
 893                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 894                        dev->name,latency);
 895                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 896         }
 897
 898         /* print pci info */
 899         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 900         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 901         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 902                "latency: %d, mmio: 0x%llx\n", dev->name,
 903                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 904                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 905         pci_set_master(pci_dev);
 906         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 907                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 908                 err = -EIO;
 909                 goto fail1;
 910         }
 911
 912         /* board config */
 913         dev->board = pci_id->driver_data;
 914         if (card[dev->nr] >= 0 &&
 915             card[dev->nr] < saa7134_bcount)
 916                 dev->board = card[dev->nr];
 917         if (SAA7134_BOARD_NOAUTO == dev->board) {
 918                 must_configure_manually();
 919                 dev->board = SAA7134_BOARD_UNKNOWN;
 920         }
 921         dev->autodetected = card[dev->nr] != dev->board;
 922         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 923         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 924         if (UNSET != tuner[dev->nr])
 925                 dev->tuner_type = tuner[dev->nr];
 926                 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 927                 dev->name,pci_dev->subsystem_vendor,
 928                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 929                 dev->board, dev->autodetected ?
 930                 "autodetected" : "insmod option");
 931
 932         /* get mmio */
 933         if (!request_mem_region(pci_resource_start(pci_dev,0),
 934                                 pci_resource_len(pci_dev,0),
 935                                 dev->name)) {
 936                 err = -EBUSY;
 937                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 938                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 939                 goto fail1;
 940         }
 941         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 942         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 943         if (NULL == dev->lmmio) {
 944                 err = -EIO;
 945                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 946                        dev->name);
 947                 goto fail2;
 948         }
 949
 950         /* initialize hardware #1 */
 951         saa7134_board_init1(dev);
 952         saa7134_hwinit1(dev);
 953
 954         /* get irq */
 955         err = request_irq(pci_dev->irq, saa7134_irq,
 956                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 957         if (err < 0) {
 958                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 959                        dev->name,pci_dev->irq);
 960                 goto fail3;
 961         }
 962
 963         /* wait a bit, register i2c bus */
 964         msleep(100);
 965         saa7134_i2c_register(dev);
 966
 967         /* initialize hardware #2 */
 968         saa7134_board_init2(dev);
 969         saa7134_hwinit2(dev);
 970
 971         /* load i2c helpers */
 972         if (TUNER_ABSENT != dev->tuner_type)
 973                 request_module("tuner");
 974         if (card_is_empress(dev)) {
 975                 request_module("saa6752hs");
 976         }
 977
 978         request_submodules(dev);
 979
 980         v4l2_prio_init(&dev->prio);
 981
 982         /* register v4l devices */
 983         if (saa7134_no_overlay <= 0) {
 984                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
 985         } else {
 986                 printk("%s: Overlay support disabled.\n",dev->name);
 987         }
 988         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
 989         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
 990                                     video_nr[dev->nr]);
 991         if (err < 0) {
 992                 printk(KERN_INFO "%s: can't register video device\n",
 993                        dev->name);
 994                 goto fail4;
 995         }
 996         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
 997                dev->name,dev->video_dev->minor & 0x1f);
 998
 999         dev->vbi_dev = vdev_init(dev,&saa7134_vbi_template,"vbi");
1000         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1001                                     vbi_nr[dev->nr]);
1002         if (err < 0)
1003                 goto fail4;
1004         printk(KERN_INFO "%s: registered device vbi%d\n",
1005                dev->name,dev->vbi_dev->minor & 0x1f);
1006
1007         if (card_has_radio(dev)) {
1008                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1009                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1010                                             radio_nr[dev->nr]);
1011                 if (err < 0)
1012                         goto fail4;
1013                 printk(KERN_INFO "%s: registered device radio%d\n",
1014                        dev->name,dev->radio_dev->minor & 0x1f);
1015         }
1016
1017         /* everything worked */
1018         pci_set_drvdata(pci_dev,dev);
1019         saa7134_devcount++;
1020
1021         mutex_lock(&devlist_lock);
1022         list_for_each(item,&mops_list) {
1023                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1024                 mpeg_ops_attach(mops, dev);
1025         }
1026         list_add_tail(&dev->devlist,&saa7134_devlist);
1027         mutex_unlock(&devlist_lock);
1028
1029         /* check for signal */
1030         saa7134_irq_video_intl(dev);
1031
1032         if (saa7134_dmasound_init && !dev->dmasound.priv_data) {
1033                 saa7134_dmasound_init(dev);
1034         }
1035
1036         if (TUNER_ABSENT != dev->tuner_type)
1037                 saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
1038
1039         return 0;
1040
1041  fail4:
1042         saa7134_unregister_video(dev);
1043         saa7134_i2c_unregister(dev);
1044         free_irq(pci_dev->irq, dev);
1045  fail3:
1046         saa7134_hwfini(dev);
1047         iounmap(dev->lmmio);
1048  fail2:
1049         release_mem_region(pci_resource_start(pci_dev,0),
1050                            pci_resource_len(pci_dev,0));
1051  fail1:
1052         kfree(dev);
1053         return err;
1054 }
1055
1056 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1057 {
1058         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1059         struct list_head *item;
1060         struct saa7134_mpeg_ops *mops;
1061
1062         /* Release DMA sound modules if present */
1063         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1064                 saa7134_dmasound_exit(dev);
1065         }
1066
1067         /* debugging ... */
1068         if (irq_debug) {
1069                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1070                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1071                 print_irqstatus(dev,42,report,status);
1072         }
1073
1074         /* disable peripheral devices */
1075         saa_writeb(SAA7134_SPECIAL_MODE,0);
1076
1077         /* shutdown hardware */
1078         saa_writel(SAA7134_IRQ1,0);
1079         saa_writel(SAA7134_IRQ2,0);
1080         saa_writel(SAA7134_MAIN_CTRL,0);
1081
1082         /* shutdown subsystems */
1083         saa7134_hwfini(dev);
1084
1085         /* unregister */
1086         mutex_lock(&devlist_lock);
1087         list_del(&dev->devlist);
1088         list_for_each(item,&mops_list) {
1089                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1090                 mpeg_ops_detach(mops, dev);
1091         }
1092         mutex_unlock(&devlist_lock);
1093         saa7134_devcount--;
1094
1095         saa7134_i2c_unregister(dev);
1096         saa7134_unregister_video(dev);
1097
1098
1099         /* the DMA sound modules should be unloaded before reaching
1100            this, but just in case they are still present... */
1101         if (dev->dmasound.priv_data != NULL) {
1102                 free_irq(pci_dev->irq, &dev->dmasound);
1103                 dev->dmasound.priv_data = NULL;
1104         }
1105
1106
1107         /* release resources */
1108         free_irq(pci_dev->irq, dev);
1109         iounmap(dev->lmmio);
1110         release_mem_region(pci_resource_start(pci_dev,0),
1111                            pci_resource_len(pci_dev,0));
1112
1113         pci_set_drvdata(pci_dev, NULL);
1114
1115         /* free memory */
1116         kfree(dev);
1117 }
1118
1119 /* ----------------------------------------------------------- */
1120
1121 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1122 {
1123         struct list_head *item;
1124         struct saa7134_dev *dev;
1125
1126         mutex_lock(&devlist_lock);
1127         list_for_each(item,&saa7134_devlist) {
1128                 dev = list_entry(item, struct saa7134_dev, devlist);
1129                 mpeg_ops_attach(ops, dev);
1130         }
1131         list_add_tail(&ops->next,&mops_list);
1132         mutex_unlock(&devlist_lock);
1133         return 0;
1134 }
1135
1136 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1137 {
1138         struct list_head *item;
1139         struct saa7134_dev *dev;
1140
1141         mutex_lock(&devlist_lock);
1142         list_del(&ops->next);
1143         list_for_each(item,&saa7134_devlist) {
1144                 dev = list_entry(item, struct saa7134_dev, devlist);
1145                 mpeg_ops_detach(ops, dev);
1146         }
1147         mutex_unlock(&devlist_lock);
1148 }
1149
1150 EXPORT_SYMBOL(saa7134_ts_register);
1151 EXPORT_SYMBOL(saa7134_ts_unregister);
1152
1153 /* ----------------------------------------------------------- */
1154
1155 static struct pci_driver saa7134_pci_driver = {
1156         .name     = "saa7134",
1157         .id_table = saa7134_pci_tbl,
1158         .probe    = saa7134_initdev,
1159         .remove   = __devexit_p(saa7134_finidev),
1160 };
1161
1162 static int saa7134_init(void)
1163 {
1164         INIT_LIST_HEAD(&saa7134_devlist);
1165         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1166                (SAA7134_VERSION_CODE >> 16) & 0xff,
1167                (SAA7134_VERSION_CODE >>  8) & 0xff,
1168                SAA7134_VERSION_CODE & 0xff);
1169 #ifdef SNAPSHOT
1170         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1171                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1172 #endif
1173         return pci_register_driver(&saa7134_pci_driver);
1174 }
1175
1176 static void saa7134_fini(void)
1177 {
1178         pci_unregister_driver(&saa7134_pci_driver);
1179 }
1180
1181 module_init(saa7134_init);
1182 module_exit(saa7134_fini);
1183
1184 /* ----------------------------------------------------------- */
1185
1186 EXPORT_SYMBOL(saa7134_set_gpio);
1187 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1188 EXPORT_SYMBOL(saa7134_devlist);
1189 EXPORT_SYMBOL(saa7134_boards);
1190
1191 /* ----------------- for the DMA sound modules --------------- */
1192
1193 EXPORT_SYMBOL(saa7134_dmasound_init);
1194 EXPORT_SYMBOL(saa7134_dmasound_exit);
1195 EXPORT_SYMBOL(saa7134_pgtable_free);
1196 EXPORT_SYMBOL(saa7134_pgtable_build);
1197 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1198 EXPORT_SYMBOL(saa7134_set_dmabits);
1199
1200 /* ----------------------------------------------------------- */
1201 /*
1202  * Local variables:
1203  * c-basic-offset: 8
1204  * End:
1205  */