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/moduleparam.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/kmod.h>
  30 #include <linux/sound.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/delay.h>
  33 #include <linux/mutex.h>
  34 #include <linux/dma-mapping.h>
  35
  36 #include "saa7134-reg.h"
  37 #include "saa7134.h"
  38
  39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  41 MODULE_LICENSE("GPL");
  42
  43 /* ------------------------------------------------------------------ */
  44
  45 static unsigned int irq_debug = 0;
  46 module_param(irq_debug, int, 0644);
  47 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  48
  49 static unsigned int core_debug = 0;
  50 module_param(core_debug, int, 0644);
  51 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  52
  53 static unsigned int gpio_tracking = 0;
  54 module_param(gpio_tracking, int, 0644);
  55 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  56
  57 static unsigned int alsa = 0;
  58 module_param(alsa, int, 0644);
  59 MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
  60
  61 static unsigned int oss = 0;
  62 module_param(oss, int, 0644);
  63 MODULE_PARM_DESC(oss,"enable OSS DMA sound [dmasound]");
  64
  65 static unsigned int latency = UNSET;
  66 module_param(latency, int, 0444);
  67 MODULE_PARM_DESC(latency,"pci latency timer");
  68
  69 int saa7134_no_overlay=-1;
  70 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  71 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  72                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  73
  74 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  78 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  79
  80
  81 module_param_array(video_nr, int, NULL, 0444);
  82 module_param_array(vbi_nr,   int, NULL, 0444);
  83 module_param_array(radio_nr, int, NULL, 0444);
  84 module_param_array(tuner,    int, NULL, 0444);
  85 module_param_array(card,     int, NULL, 0444);
  86
  87 MODULE_PARM_DESC(video_nr, "video device number");
  88 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  89 MODULE_PARM_DESC(radio_nr, "radio device number");
  90 MODULE_PARM_DESC(tuner,    "tuner type");
  91 MODULE_PARM_DESC(card,     "card type");
  92
  93 static DEFINE_MUTEX(devlist_lock);
  94 LIST_HEAD(saa7134_devlist);
  95 static LIST_HEAD(mops_list);
  96 static unsigned int saa7134_devcount;
  97
  98 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  99 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
 100
 101 #define dprintk(fmt, arg...)    if (core_debug) \
 102         printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
 103
 104 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 105 {
 106         unsigned long mode,status;
 107
 108         if (!gpio_tracking)
 109                 return;
 110         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 111         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 112         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 113         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 114         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 115         printk(KERN_DEBUG
 116                "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 117                dev->name, mode, (~mode) & status, mode & status, msg);
 118 }
 119
 120 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 121 {
 122         u32 index, bitval;
 123
 124         index = 1 << bit_no;
 125         switch (value) {
 126         case 0: /* static value */
 127         case 1: dprintk("setting GPIO%d to static %d\n", bit_no, value);
 128                 /* turn sync mode off if necessary */
 129                 if (index & 0x00c00000)
 130                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 131                 if (value)
 132                         bitval = index;
 133                 else
 134                         bitval = 0;
 135                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 136                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 137                 break;
 138         case 3: /* tristate */
 139                 dprintk("setting GPIO%d to tristate\n", bit_no);
 140                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 141                 break;
 142         }
 143 }
 144
 145 int saa7134_tuner_callback(void *ptr, int command, int arg)
 146 {
 147         u8 sync_control;
 148         struct saa7134_dev *dev = ptr;
 149
 150         switch (dev->tuner_type) {
 151         case TUNER_PHILIPS_TDA8290:
 152                 switch (command) {
 153                 case 0: /* switch LNA gain through GPIO 22*/
 154                         saa7134_set_gpio(dev, 22, arg) ;
 155                         break;
 156                 case 1: /* vsync output at GPIO22. 50 / 60Hz */
 157                         dprintk("setting GPIO22 to vsync %d\n", arg);
 158                         saa_andorb(SAA7134_VIDEO_PORT_CTRL3, 0x80, 0x80);
 159                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x03);
 160                         if (arg == 1)
 161                                 sync_control = 11;
 162                         else
 163                                 sync_control = 17;
 164                         saa_writeb(SAA7134_VGATE_START, sync_control);
 165                         saa_writeb(SAA7134_VGATE_STOP, sync_control + 1);
 166                         saa_andorb(SAA7134_MISC_VGATE_MSB, 0x03, 0x00);
 167                         break;
 168                 default:
 169                         return -EINVAL;
 170                 }
 171                 break;
 172         default:
 173                 return -ENODEV;
 174         }
 175         return 0;
 176 }
 177
 178 /* ------------------------------------------------------------------ */
 179
 180
 181 /* ----------------------------------------------------------- */
 182 /* delayed request_module                                      */
 183
 184 #if defined(CONFIG_MODULES) && defined(MODULE)
 185
 186
 187 static void request_module_async(struct work_struct *work){
 188         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 189         if (card_is_empress(dev))
 190                 request_module("saa7134-empress");
 191         if (card_is_dvb(dev))
 192                 request_module("saa7134-dvb");
 193         if (alsa)
 194                 request_module("saa7134-alsa");
 195         if (oss)
 196                 request_module("saa7134-oss");
 197 }
 198
 199 static void request_submodules(struct saa7134_dev *dev)
 200 {
 201         INIT_WORK(&dev->request_module_wk, request_module_async);
 202         schedule_work(&dev->request_module_wk);
 203 }
 204
 205 #else
 206 #define request_submodules(dev)
 207 #endif /* CONFIG_MODULES */
 208
 209 /* ------------------------------------------------------------------ */
 210
 211 /* nr of (saa7134-)pages for the given buffer size */
 212 static int saa7134_buffer_pages(int size)
 213 {
 214         size  = PAGE_ALIGN(size);
 215         size += PAGE_SIZE; /* for non-page-aligned buffers */
 216         size /= 4096;
 217         return size;
 218 }
 219
 220 /* calc max # of buffers from size (must not exceed the 4MB virtual
 221  * address space per DMA channel) */
 222 int saa7134_buffer_count(unsigned int size, unsigned int count)
 223 {
 224         unsigned int maxcount;
 225
 226         maxcount = 1024 / saa7134_buffer_pages(size);
 227         if (count > maxcount)
 228                 count = maxcount;
 229         return count;
 230 }
 231
 232 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 233 {
 234         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 235 }
 236
 237 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 238 {
 239         unsigned long base;
 240
 241         base  = saa7134_buffer_startpage(buf) * 4096;
 242         base += buf->vb.dma.sglist[0].offset;
 243         return base;
 244 }
 245
 246 /* ------------------------------------------------------------------ */
 247
 248 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 249 {
 250         __le32       *cpu;
 251         dma_addr_t   dma_addr;
 252
 253         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 254         if (NULL == cpu)
 255                 return -ENOMEM;
 256         pt->size = SAA7134_PGTABLE_SIZE;
 257         pt->cpu  = cpu;
 258         pt->dma  = dma_addr;
 259         return 0;
 260 }
 261
 262 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 263                           struct scatterlist *list, unsigned int length,
 264                           unsigned int startpage)
 265 {
 266         __le32        *ptr;
 267         unsigned int  i,p;
 268
 269         BUG_ON(NULL == pt || NULL == pt->cpu);
 270
 271         ptr = pt->cpu + startpage;
 272         for (i = 0; i < length; i++, list++)
 273                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 274                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 275         return 0;
 276 }
 277
 278 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 279 {
 280         if (NULL == pt->cpu)
 281                 return;
 282         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 283         pt->cpu = NULL;
 284 }
 285
 286 /* ------------------------------------------------------------------ */
 287
 288 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 289 {
 290         BUG_ON(in_interrupt());
 291
 292         videobuf_waiton(&buf->vb,0,0);
 293         videobuf_dma_unmap(q, &buf->vb.dma);
 294         videobuf_dma_free(&buf->vb.dma);
 295         buf->vb.state = STATE_NEEDS_INIT;
 296 }
 297
 298 /* ------------------------------------------------------------------ */
 299
 300 int saa7134_buffer_queue(struct saa7134_dev *dev,
 301                          struct saa7134_dmaqueue *q,
 302                          struct saa7134_buf *buf)
 303 {
 304         struct saa7134_buf *next = NULL;
 305
 306         assert_spin_locked(&dev->slock);
 307         dprintk("buffer_queue %p\n",buf);
 308         if (NULL == q->curr) {
 309                 if (!q->need_two) {
 310                         q->curr = buf;
 311                         buf->activate(dev,buf,NULL);
 312                 } else if (list_empty(&q->queue)) {
 313                         list_add_tail(&buf->vb.queue,&q->queue);
 314                         buf->vb.state = STATE_QUEUED;
 315                 } else {
 316                         next = list_entry(q->queue.next,struct saa7134_buf,
 317                                           vb.queue);
 318                         q->curr = buf;
 319                         buf->activate(dev,buf,next);
 320                 }
 321         } else {
 322                 list_add_tail(&buf->vb.queue,&q->queue);
 323                 buf->vb.state = STATE_QUEUED;
 324         }
 325         return 0;
 326 }
 327
 328 void saa7134_buffer_finish(struct saa7134_dev *dev,
 329                            struct saa7134_dmaqueue *q,
 330                            unsigned int state)
 331 {
 332         assert_spin_locked(&dev->slock);
 333         dprintk("buffer_finish %p\n",q->curr);
 334
 335         /* finish current buffer */
 336         q->curr->vb.state = state;
 337         do_gettimeofday(&q->curr->vb.ts);
 338         wake_up(&q->curr->vb.done);
 339         q->curr = NULL;
 340 }
 341
 342 void saa7134_buffer_next(struct saa7134_dev *dev,
 343                          struct saa7134_dmaqueue *q)
 344 {
 345         struct saa7134_buf *buf,*next = NULL;
 346
 347         assert_spin_locked(&dev->slock);
 348         BUG_ON(NULL != q->curr);
 349
 350         if (!list_empty(&q->queue)) {
 351                 /* activate next one from queue */
 352                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 353                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 354                         buf,q->queue.prev,q->queue.next);
 355                 list_del(&buf->vb.queue);
 356                 if (!list_empty(&q->queue))
 357                         next = list_entry(q->queue.next,struct saa7134_buf,
 358                                           vb.queue);
 359                 q->curr = buf;
 360                 buf->activate(dev,buf,next);
 361                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 362                         q->queue.prev,q->queue.next);
 363         } else {
 364                 /* nothing to do -- just stop DMA */
 365                 dprintk("buffer_next %p\n",NULL);
 366                 saa7134_set_dmabits(dev);
 367                 del_timer(&q->timeout);
 368         }
 369 }
 370
 371 void saa7134_buffer_timeout(unsigned long data)
 372 {
 373         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 374         struct saa7134_dev *dev = q->dev;
 375         unsigned long flags;
 376
 377         spin_lock_irqsave(&dev->slock,flags);
 378
 379         /* try to reset the hardware (SWRST) */
 380         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 381         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 382         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 383
 384         /* flag current buffer as failed,
 385            try to start over with the next one. */
 386         if (q->curr) {
 387                 dprintk("timeout on %p\n",q->curr);
 388                 saa7134_buffer_finish(dev,q,STATE_ERROR);
 389         }
 390         saa7134_buffer_next(dev,q);
 391         spin_unlock_irqrestore(&dev->slock,flags);
 392 }
 393
 394 /* ------------------------------------------------------------------ */
 395
 396 int saa7134_set_dmabits(struct saa7134_dev *dev)
 397 {
 398         u32 split, task=0, ctrl=0, irq=0;
 399         enum v4l2_field cap = V4L2_FIELD_ANY;
 400         enum v4l2_field ov  = V4L2_FIELD_ANY;
 401
 402         assert_spin_locked(&dev->slock);
 403
 404         /* video capture -- dma 0 + video task A */
 405         if (dev->video_q.curr) {
 406                 task |= 0x01;
 407                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 408                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 409                         SAA7134_IRQ1_INTE_RA0_0;
 410                 cap = dev->video_q.curr->vb.field;
 411         }
 412
 413         /* video capture -- dma 1+2 (planar modes) */
 414         if (dev->video_q.curr &&
 415             dev->video_q.curr->fmt->planar) {
 416                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 417                         SAA7134_MAIN_CTRL_TE5;
 418         }
 419
 420         /* screen overlay -- dma 0 + video task B */
 421         if (dev->ovenable) {
 422                 task |= 0x10;
 423                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 424                 ov = dev->ovfield;
 425         }
 426
 427         /* vbi capture -- dma 0 + vbi task A+B */
 428         if (dev->vbi_q.curr) {
 429                 task |= 0x22;
 430                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 431                         SAA7134_MAIN_CTRL_TE3;
 432                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 433                         SAA7134_IRQ1_INTE_RA0_6 |
 434                         SAA7134_IRQ1_INTE_RA0_5 |
 435                         SAA7134_IRQ1_INTE_RA0_4;
 436         }
 437
 438         /* audio capture -- dma 3 */
 439         if (dev->dmasound.dma_running) {
 440                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 441                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 442                         SAA7134_IRQ1_INTE_RA3_0;
 443         }
 444
 445         /* TS capture -- dma 5 */
 446         if (dev->ts_q.curr) {
 447                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 448                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 449                         SAA7134_IRQ1_INTE_RA2_2 |
 450                         SAA7134_IRQ1_INTE_RA2_1 |
 451                         SAA7134_IRQ1_INTE_RA2_0;
 452         }
 453
 454         /* set task conditions + field handling */
 455         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 456                 /* default config -- use full frames */
 457                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 458                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 459                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 460                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 461                 split = 0;
 462         } else {
 463                 /* split fields between tasks */
 464                 if (V4L2_FIELD_TOP == cap) {
 465                         /* odd A, even B, repeat */
 466                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 467                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 468                 } else {
 469                         /* odd B, even A, repeat */
 470                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 471                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 472                 }
 473                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 474                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 475                 split = 1;
 476         }
 477
 478         /* irqs */
 479         saa_writeb(SAA7134_REGION_ENABLE, task);
 480         saa_writel(SAA7134_IRQ1,          irq);
 481         saa_andorl(SAA7134_MAIN_CTRL,
 482                    SAA7134_MAIN_CTRL_TE0 |
 483                    SAA7134_MAIN_CTRL_TE1 |
 484                    SAA7134_MAIN_CTRL_TE2 |
 485                    SAA7134_MAIN_CTRL_TE3 |
 486                    SAA7134_MAIN_CTRL_TE4 |
 487                    SAA7134_MAIN_CTRL_TE5 |
 488                    SAA7134_MAIN_CTRL_TE6,
 489                    ctrl);
 490         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 491                 task, ctrl, irq, split ? "no" : "yes");
 492
 493         return 0;
 494 }
 495
 496 /* ------------------------------------------------------------------ */
 497 /* IRQ handler + helpers                                              */
 498
 499 static char *irqbits[] = {
 500         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 501         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 502         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 503         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 504 };
 505 #define IRQBITS ARRAY_SIZE(irqbits)
 506
 507 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 508                             unsigned long report, unsigned long status)
 509 {
 510         unsigned int i;
 511
 512         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 513                dev->name,loop,jiffies,report,status);
 514         for (i = 0; i < IRQBITS; i++) {
 515                 if (!(report & (1 << i)))
 516                         continue;
 517                 printk(" %s",irqbits[i]);
 518         }
 519         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 520                 printk(" | RA0=%s,%s,%s,%ld",
 521                        (status & 0x40) ? "vbi"  : "video",
 522                        (status & 0x20) ? "b"    : "a",
 523                        (status & 0x10) ? "odd"  : "even",
 524                        (status & 0x0f));
 525         }
 526         printk("\n");
 527 }
 528
 529 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 530 {
 531         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 532         unsigned long report,status;
 533         int loop, handled = 0;
 534
 535         for (loop = 0; loop < 10; loop++) {
 536                 report = saa_readl(SAA7134_IRQ_REPORT);
 537                 status = saa_readl(SAA7134_IRQ_STATUS);
 538                 if (0 == report) {
 539                         if (irq_debug > 1)
 540                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 541                                        dev->name);
 542                         goto out;
 543                 }
 544
 545                 /* If dmasound support is active and we get a sound report, exit
 546                    and let the saa7134-alsa/oss module deal with it */
 547
 548                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 549                         (dev->dmasound.priv_data != NULL) )
 550                 {
 551                         if (irq_debug > 1)
 552                                 printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
 553                                        dev->name);
 554                         goto out;
 555                 }
 556
 557                 handled = 1;
 558                 saa_writel(SAA7134_IRQ_REPORT,report);
 559                 if (irq_debug)
 560                         print_irqstatus(dev,loop,report,status);
 561
 562
 563                 if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */)
 564                         saa7134_irq_video_intl(dev);
 565
 566                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 567                     (status & 0x60) == 0)
 568                         saa7134_irq_video_done(dev,status);
 569
 570                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 571                     (status & 0x40) == 0x40)
 572                         saa7134_irq_vbi_done(dev,status);
 573
 574                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 575                     card_has_mpeg(dev))
 576                         saa7134_irq_ts_done(dev,status);
 577
 578                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 579                         switch (dev->has_remote) {
 580                                 case SAA7134_REMOTE_GPIO:
 581                                         if (!dev->remote)
 582                                                 break;
 583                                         if  (dev->remote->mask_keydown & 0x10000) {
 584                                                 saa7134_input_irq(dev);
 585                                         }
 586                                         break;
 587
 588                                 case SAA7134_REMOTE_I2C:
 589                                         break;                  /* FIXME: invoke I2C get_key() */
 590
 591                                 default:                        /* GPIO16 not used by IR remote */
 592                                         break;
 593                         }
 594                 }
 595
 596                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 597                         switch (dev->has_remote) {
 598                                 case SAA7134_REMOTE_GPIO:
 599                                         if (!dev->remote)
 600                                                 break;
 601                                         if ((dev->remote->mask_keydown & 0x40000) ||
 602                                             (dev->remote->mask_keyup & 0x40000)) {
 603                                                 saa7134_input_irq(dev);
 604                                         }
 605                                         break;
 606
 607                                 case SAA7134_REMOTE_I2C:
 608                                         break;                  /* FIXME: invoke I2C get_key() */
 609
 610                                 default:                        /* GPIO18 not used by IR remote */
 611                                         break;
 612                         }
 613                 }
 614         }
 615
 616         if (10 == loop) {
 617                 print_irqstatus(dev,loop,report,status);
 618                 if (report & SAA7134_IRQ_REPORT_PE) {
 619                         /* disable all parity error */
 620                         printk(KERN_WARNING "%s/irq: looping -- "
 621                                "clearing PE (parity error!) enable bit\n",dev->name);
 622                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 623                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 624                         /* disable gpio16 IRQ */
 625                         printk(KERN_WARNING "%s/irq: looping -- "
 626                                "clearing GPIO16 enable bit\n",dev->name);
 627                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 628                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 629                         /* disable gpio18 IRQs */
 630                         printk(KERN_WARNING "%s/irq: looping -- "
 631                                "clearing GPIO18 enable bit\n",dev->name);
 632                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 633                 } else {
 634                         /* disable all irqs */
 635                         printk(KERN_WARNING "%s/irq: looping -- "
 636                                "clearing all enable bits\n",dev->name);
 637                         saa_writel(SAA7134_IRQ1,0);
 638                         saa_writel(SAA7134_IRQ2,0);
 639                 }
 640         }
 641
 642  out:
 643         return IRQ_RETVAL(handled);
 644 }
 645
 646 /* ------------------------------------------------------------------ */
 647
 648 /* early init (no i2c, no irq) */
 649 static int saa7134_hwinit1(struct saa7134_dev *dev)
 650 {
 651         dprintk("hwinit1\n");
 652
 653         saa_writel(SAA7134_IRQ1, 0);
 654         saa_writel(SAA7134_IRQ2, 0);
 655         mutex_init(&dev->lock);
 656         spin_lock_init(&dev->slock);
 657
 658         saa7134_track_gpio(dev,"pre-init");
 659         saa7134_video_init1(dev);
 660         saa7134_vbi_init1(dev);
 661         if (card_has_mpeg(dev))
 662                 saa7134_ts_init1(dev);
 663         saa7134_input_init1(dev);
 664
 665         /* RAM FIFO config */
 666         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 667         saa_writel(SAA7134_THRESHOULD,0x02020202);
 668
 669         /* enable audio + video processing */
 670         saa_writel(SAA7134_MAIN_CTRL,
 671                    SAA7134_MAIN_CTRL_VPLLE |
 672                    SAA7134_MAIN_CTRL_APLLE |
 673                    SAA7134_MAIN_CTRL_EXOSC |
 674                    SAA7134_MAIN_CTRL_EVFE1 |
 675                    SAA7134_MAIN_CTRL_EVFE2 |
 676                    SAA7134_MAIN_CTRL_ESFE  |
 677                    SAA7134_MAIN_CTRL_EBDAC);
 678
 679         /*
 680          * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 681          * OSS initialization writes to registers via the audio DSP; these
 682          * writes will fail unless the audio clock has been started.  At worst,
 683          * audio will not work.
 684          */
 685
 686         /* enable peripheral devices */
 687         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 688
 689         /* set vertical line numbering start (vbi needs this) */
 690         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 691
 692         return 0;
 693 }
 694
 695 /* late init (with i2c + irq) */
 696 static int saa7134_hwinit2(struct saa7134_dev *dev)
 697 {
 698         unsigned int irq2_mask;
 699         dprintk("hwinit2\n");
 700
 701         saa7134_video_init2(dev);
 702         saa7134_tvaudio_init2(dev);
 703
 704         /* enable IRQ's */
 705         irq2_mask =
 706                 SAA7134_IRQ2_INTE_DEC3    |
 707                 SAA7134_IRQ2_INTE_DEC2    |
 708                 SAA7134_IRQ2_INTE_DEC1    |
 709                 SAA7134_IRQ2_INTE_DEC0    |
 710                 SAA7134_IRQ2_INTE_PE      |
 711                 SAA7134_IRQ2_INTE_AR;
 712
 713         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 714                 if (dev->remote->mask_keydown & 0x10000)
 715                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 716                 else if (dev->remote->mask_keydown & 0x40000)
 717                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 718                 else if (dev->remote->mask_keyup & 0x40000)
 719                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 720         }
 721
 722         saa_writel(SAA7134_IRQ1, 0);
 723         saa_writel(SAA7134_IRQ2, irq2_mask);
 724
 725         return 0;
 726 }
 727
 728 /* shutdown */
 729 static int saa7134_hwfini(struct saa7134_dev *dev)
 730 {
 731         dprintk("hwfini\n");
 732
 733         if (card_has_mpeg(dev))
 734                 saa7134_ts_fini(dev);
 735         saa7134_input_fini(dev);
 736         saa7134_vbi_fini(dev);
 737         saa7134_tvaudio_fini(dev);
 738         return 0;
 739 }
 740
 741 static void __devinit must_configure_manually(void)
 742 {
 743         unsigned int i,p;
 744
 745         printk(KERN_WARNING
 746                "saa7134: <rant>\n"
 747                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 748                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 749                "saa7134:  subsystem ID and I can't identify it automatically\n"
 750                "saa7134: </rant>\n"
 751                "saa7134: I feel better now.  Ok, here are the good news:\n"
 752                "saa7134: You can use the card=<nr> insmod option to specify\n"
 753                "saa7134: which board do you have.  The list:\n");
 754         for (i = 0; i < saa7134_bcount; i++) {
 755                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 756                        i,saa7134_boards[i].name);
 757                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 758                         if (saa7134_pci_tbl[p].driver_data != i)
 759                                 continue;
 760                         printk(" %04x:%04x",
 761                                saa7134_pci_tbl[p].subvendor,
 762                                saa7134_pci_tbl[p].subdevice);
 763                 }
 764                 printk("\n");
 765         }
 766 }
 767
 768 static struct video_device *vdev_init(struct saa7134_dev *dev,
 769                                       struct video_device *template,
 770                                       char *type)
 771 {
 772         struct video_device *vfd;
 773
 774         vfd = video_device_alloc();
 775         if (NULL == vfd)
 776                 return NULL;
 777         *vfd = *template;
 778         vfd->minor   = -1;
 779         vfd->dev     = &dev->pci->dev;
 780         vfd->release = video_device_release;
 781         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 782                  dev->name, type, saa7134_boards[dev->board].name);
 783         return vfd;
 784 }
 785
 786 static void saa7134_unregister_video(struct saa7134_dev *dev)
 787 {
 788         if (dev->video_dev) {
 789                 if (-1 != dev->video_dev->minor)
 790                         video_unregister_device(dev->video_dev);
 791                 else
 792                         video_device_release(dev->video_dev);
 793                 dev->video_dev = NULL;
 794         }
 795         if (dev->vbi_dev) {
 796                 if (-1 != dev->vbi_dev->minor)
 797                         video_unregister_device(dev->vbi_dev);
 798                 else
 799                         video_device_release(dev->vbi_dev);
 800                 dev->vbi_dev = NULL;
 801         }
 802         if (dev->radio_dev) {
 803                 if (-1 != dev->radio_dev->minor)
 804                         video_unregister_device(dev->radio_dev);
 805                 else
 806                         video_device_release(dev->radio_dev);
 807                 dev->radio_dev = NULL;
 808         }
 809 }
 810
 811 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 812                             struct saa7134_dev *dev)
 813 {
 814         int err;
 815
 816         if (NULL != dev->mops)
 817                 return;
 818         if (saa7134_boards[dev->board].mpeg != ops->type)
 819                 return;
 820         err = ops->init(dev);
 821         if (0 != err)
 822                 return;
 823         dev->mops = ops;
 824 }
 825
 826 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 827                             struct saa7134_dev *dev)
 828 {
 829         if (NULL == dev->mops)
 830                 return;
 831         if (dev->mops != ops)
 832                 return;
 833         dev->mops->fini(dev);
 834         dev->mops = NULL;
 835 }
 836
 837 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 838                                      const struct pci_device_id *pci_id)
 839 {
 840         struct saa7134_dev *dev;
 841         struct list_head *item;
 842         struct saa7134_mpeg_ops *mops;
 843         int err;
 844
 845         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 846         if (NULL == dev)
 847                 return -ENOMEM;
 848
 849         /* pci init */
 850         dev->pci = pci_dev;
 851         if (pci_enable_device(pci_dev)) {
 852                 err = -EIO;
 853                 goto fail1;
 854         }
 855
 856         dev->nr = saa7134_devcount;
 857         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 858
 859         /* pci quirks */
 860         if (pci_pci_problems) {
 861                 if (pci_pci_problems & PCIPCI_TRITON)
 862                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 863                 if (pci_pci_problems & PCIPCI_NATOMA)
 864                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 865                 if (pci_pci_problems & PCIPCI_VIAETBF)
 866                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 867                 if (pci_pci_problems & PCIPCI_VSFX)
 868                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 869 #ifdef PCIPCI_ALIMAGIK
 870                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 871                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 872                                dev->name);
 873                         latency = 0x0A;
 874                 }
 875 #endif
 876                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 877                         printk(KERN_INFO "%s: quirk: this driver and your "
 878                                         "chipset may not work together"
 879                                         " in overlay mode.\n",dev->name);
 880                         if (!saa7134_no_overlay) {
 881                                 printk(KERN_INFO "%s: quirk: overlay "
 882                                                 "mode will be disabled.\n",
 883                                                 dev->name);
 884                                 saa7134_no_overlay = 1;
 885                         } else {
 886                                 printk(KERN_INFO "%s: quirk: overlay "
 887                                                 "mode will be forced. Use this"
 888                                                 " option at your own risk.\n",
 889                                                 dev->name);
 890                         }
 891                 }
 892         }
 893         if (UNSET != latency) {
 894                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 895                        dev->name,latency);
 896                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 897         }
 898
 899         /* print pci info */
 900         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 901         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 902         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 903                "latency: %d, mmio: 0x%llx\n", dev->name,
 904                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 905                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 906         pci_set_master(pci_dev);
 907         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 908                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 909                 err = -EIO;
 910                 goto fail1;
 911         }
 912
 913         /* board config */
 914         dev->board = pci_id->driver_data;
 915         if (card[dev->nr] >= 0 &&
 916             card[dev->nr] < saa7134_bcount)
 917                 dev->board = card[dev->nr];
 918         if (SAA7134_BOARD_NOAUTO == dev->board) {
 919                 must_configure_manually();
 920                 dev->board = SAA7134_BOARD_UNKNOWN;
 921         }
 922         dev->autodetected = card[dev->nr] != dev->board;
 923         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 924         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 925         if (UNSET != tuner[dev->nr])
 926                 dev->tuner_type = tuner[dev->nr];
 927                 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 928                 dev->name,pci_dev->subsystem_vendor,
 929                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 930                 dev->board, dev->autodetected ?
 931                 "autodetected" : "insmod option");
 932
 933         /* get mmio */
 934         if (!request_mem_region(pci_resource_start(pci_dev,0),
 935                                 pci_resource_len(pci_dev,0),
 936                                 dev->name)) {
 937                 err = -EBUSY;
 938                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 939                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 940                 goto fail1;
 941         }
 942         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 943         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 944         if (NULL == dev->lmmio) {
 945                 err = -EIO;
 946                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 947                        dev->name);
 948                 goto fail2;
 949         }
 950
 951         /* initialize hardware #1 */
 952         saa7134_board_init1(dev);
 953         saa7134_hwinit1(dev);
 954
 955         /* get irq */
 956         err = request_irq(pci_dev->irq, saa7134_irq,
 957                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 958         if (err < 0) {
 959                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 960                        dev->name,pci_dev->irq);
 961                 goto fail3;
 962         }
 963
 964         /* wait a bit, register i2c bus */
 965         msleep(100);
 966         saa7134_i2c_register(dev);
 967
 968         /* initialize hardware #2 */
 969         saa7134_board_init2(dev);
 970         saa7134_hwinit2(dev);
 971
 972         /* load i2c helpers */
 973         if (TUNER_ABSENT != dev->tuner_type)
 974                 request_module("tuner");
 975         if (card_is_empress(dev)) {
 976                 request_module("saa6752hs");
 977         }
 978
 979         request_submodules(dev);
 980
 981         v4l2_prio_init(&dev->prio);
 982
 983         /* register v4l devices */
 984         if (saa7134_no_overlay <= 0) {
 985                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
 986         } else {
 987                 printk("%s: Overlay support disabled.\n",dev->name);
 988         }
 989         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
 990         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
 991                                     video_nr[dev->nr]);
 992         if (err < 0) {
 993                 printk(KERN_INFO "%s: can't register video device\n",
 994                        dev->name);
 995                 goto fail4;
 996         }
 997         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
 998                dev->name,dev->video_dev->minor & 0x1f);
 999
1000         dev->vbi_dev = vdev_init(dev,&saa7134_vbi_template,"vbi");
1001         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1002                                     vbi_nr[dev->nr]);
1003         if (err < 0)
1004                 goto fail4;
1005         printk(KERN_INFO "%s: registered device vbi%d\n",
1006                dev->name,dev->vbi_dev->minor & 0x1f);
1007
1008         if (card_has_radio(dev)) {
1009                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1010                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1011                                             radio_nr[dev->nr]);
1012                 if (err < 0)
1013                         goto fail4;
1014                 printk(KERN_INFO "%s: registered device radio%d\n",
1015                        dev->name,dev->radio_dev->minor & 0x1f);
1016         }
1017
1018         /* everything worked */
1019         pci_set_drvdata(pci_dev,dev);
1020         saa7134_devcount++;
1021
1022         mutex_lock(&devlist_lock);
1023         list_for_each(item,&mops_list) {
1024                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1025                 mpeg_ops_attach(mops, dev);
1026         }
1027         list_add_tail(&dev->devlist,&saa7134_devlist);
1028         mutex_unlock(&devlist_lock);
1029
1030         /* check for signal */
1031         saa7134_irq_video_intl(dev);
1032
1033         if (saa7134_dmasound_init && !dev->dmasound.priv_data) {
1034                 saa7134_dmasound_init(dev);
1035         }
1036
1037         if (TUNER_ABSENT != dev->tuner_type)
1038                 saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
1039
1040         return 0;
1041
1042  fail4:
1043         saa7134_unregister_video(dev);
1044         saa7134_i2c_unregister(dev);
1045         free_irq(pci_dev->irq, dev);
1046  fail3:
1047         saa7134_hwfini(dev);
1048         iounmap(dev->lmmio);
1049  fail2:
1050         release_mem_region(pci_resource_start(pci_dev,0),
1051                            pci_resource_len(pci_dev,0));
1052  fail1:
1053         kfree(dev);
1054         return err;
1055 }
1056
1057 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1058 {
1059         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1060         struct list_head *item;
1061         struct saa7134_mpeg_ops *mops;
1062
1063         /* Release DMA sound modules if present */
1064         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1065                 saa7134_dmasound_exit(dev);
1066         }
1067
1068         /* debugging ... */
1069         if (irq_debug) {
1070                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1071                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1072                 print_irqstatus(dev,42,report,status);
1073         }
1074
1075         /* disable peripheral devices */
1076         saa_writeb(SAA7134_SPECIAL_MODE,0);
1077
1078         /* shutdown hardware */
1079         saa_writel(SAA7134_IRQ1,0);
1080         saa_writel(SAA7134_IRQ2,0);
1081         saa_writel(SAA7134_MAIN_CTRL,0);
1082
1083         /* shutdown subsystems */
1084         saa7134_hwfini(dev);
1085
1086         /* unregister */
1087         mutex_lock(&devlist_lock);
1088         list_del(&dev->devlist);
1089         list_for_each(item,&mops_list) {
1090                 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1091                 mpeg_ops_detach(mops, dev);
1092         }
1093         mutex_unlock(&devlist_lock);
1094         saa7134_devcount--;
1095
1096         saa7134_i2c_unregister(dev);
1097         saa7134_unregister_video(dev);
1098
1099
1100         /* the DMA sound modules should be unloaded before reaching
1101            this, but just in case they are still present... */
1102         if (dev->dmasound.priv_data != NULL) {
1103                 free_irq(pci_dev->irq, &dev->dmasound);
1104                 dev->dmasound.priv_data = NULL;
1105         }
1106
1107
1108         /* release resources */
1109         free_irq(pci_dev->irq, dev);
1110         iounmap(dev->lmmio);
1111         release_mem_region(pci_resource_start(pci_dev,0),
1112                            pci_resource_len(pci_dev,0));
1113
1114         pci_set_drvdata(pci_dev, NULL);
1115
1116         /* free memory */
1117         kfree(dev);
1118 }
1119
1120 /* ----------------------------------------------------------- */
1121
1122 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1123 {
1124         struct list_head *item;
1125         struct saa7134_dev *dev;
1126
1127         mutex_lock(&devlist_lock);
1128         list_for_each(item,&saa7134_devlist) {
1129                 dev = list_entry(item, struct saa7134_dev, devlist);
1130                 mpeg_ops_attach(ops, dev);
1131         }
1132         list_add_tail(&ops->next,&mops_list);
1133         mutex_unlock(&devlist_lock);
1134         return 0;
1135 }
1136
1137 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1138 {
1139         struct list_head *item;
1140         struct saa7134_dev *dev;
1141
1142         mutex_lock(&devlist_lock);
1143         list_del(&ops->next);
1144         list_for_each(item,&saa7134_devlist) {
1145                 dev = list_entry(item, struct saa7134_dev, devlist);
1146                 mpeg_ops_detach(ops, dev);
1147         }
1148         mutex_unlock(&devlist_lock);
1149 }
1150
1151 EXPORT_SYMBOL(saa7134_ts_register);
1152 EXPORT_SYMBOL(saa7134_ts_unregister);
1153
1154 /* ----------------------------------------------------------- */
1155
1156 static struct pci_driver saa7134_pci_driver = {
1157         .name     = "saa7134",
1158         .id_table = saa7134_pci_tbl,
1159         .probe    = saa7134_initdev,
1160         .remove   = __devexit_p(saa7134_finidev),
1161 };
1162
1163 static int saa7134_init(void)
1164 {
1165         INIT_LIST_HEAD(&saa7134_devlist);
1166         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1167                (SAA7134_VERSION_CODE >> 16) & 0xff,
1168                (SAA7134_VERSION_CODE >>  8) & 0xff,
1169                SAA7134_VERSION_CODE & 0xff);
1170 #ifdef SNAPSHOT
1171         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1172                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1173 #endif
1174         return pci_register_driver(&saa7134_pci_driver);
1175 }
1176
1177 static void saa7134_fini(void)
1178 {
1179         pci_unregister_driver(&saa7134_pci_driver);
1180 }
1181
1182 module_init(saa7134_init);
1183 module_exit(saa7134_fini);
1184
1185 /* ----------------------------------------------------------- */
1186
1187 EXPORT_SYMBOL(saa7134_set_gpio);
1188 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1189 EXPORT_SYMBOL(saa7134_devlist);
1190 EXPORT_SYMBOL(saa7134_boards);
1191
1192 /* ----------------- for the DMA sound modules --------------- */
1193
1194 EXPORT_SYMBOL(saa7134_dmasound_init);
1195 EXPORT_SYMBOL(saa7134_dmasound_exit);
1196 EXPORT_SYMBOL(saa7134_pgtable_free);
1197 EXPORT_SYMBOL(saa7134_pgtable_build);
1198 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1199 EXPORT_SYMBOL(saa7134_set_dmabits);
1200
1201 /* ----------------------------------------------------------- */
1202 /*
1203  * Local variables:
1204  * c-basic-offset: 8
1205  * End:
1206  */