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 #include <linux/pm.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         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 241
 242         base  = saa7134_buffer_startpage(buf) * 4096;
 243         base += dma->sglist[0].offset;
 244         return base;
 245 }
 246
 247 /* ------------------------------------------------------------------ */
 248
 249 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 250 {
 251         __le32       *cpu;
 252         dma_addr_t   dma_addr;
 253
 254         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 255         if (NULL == cpu)
 256                 return -ENOMEM;
 257         pt->size = SAA7134_PGTABLE_SIZE;
 258         pt->cpu  = cpu;
 259         pt->dma  = dma_addr;
 260         return 0;
 261 }
 262
 263 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 264                           struct scatterlist *list, unsigned int length,
 265                           unsigned int startpage)
 266 {
 267         __le32        *ptr;
 268         unsigned int  i,p;
 269
 270         BUG_ON(NULL == pt || NULL == pt->cpu);
 271
 272         ptr = pt->cpu + startpage;
 273         for (i = 0; i < length; i++, list++)
 274                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 275                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 276         return 0;
 277 }
 278
 279 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 280 {
 281         if (NULL == pt->cpu)
 282                 return;
 283         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 284         pt->cpu = NULL;
 285 }
 286
 287 /* ------------------------------------------------------------------ */
 288
 289 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 290 {
 291         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 292         BUG_ON(in_interrupt());
 293
 294         videobuf_waiton(&buf->vb,0,0);
 295         videobuf_dma_unmap(q, dma);
 296         videobuf_dma_free(dma);
 297         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 298 }
 299
 300 /* ------------------------------------------------------------------ */
 301
 302 int saa7134_buffer_queue(struct saa7134_dev *dev,
 303                          struct saa7134_dmaqueue *q,
 304                          struct saa7134_buf *buf)
 305 {
 306         struct saa7134_buf *next = NULL;
 307
 308         assert_spin_locked(&dev->slock);
 309         dprintk("buffer_queue %p\n",buf);
 310         if (NULL == q->curr) {
 311                 if (!q->need_two) {
 312                         q->curr = buf;
 313                         buf->activate(dev,buf,NULL);
 314                 } else if (list_empty(&q->queue)) {
 315                         list_add_tail(&buf->vb.queue,&q->queue);
 316                         buf->vb.state = VIDEOBUF_QUEUED;
 317                 } else {
 318                         next = list_entry(q->queue.next,struct saa7134_buf,
 319                                           vb.queue);
 320                         q->curr = buf;
 321                         buf->activate(dev,buf,next);
 322                 }
 323         } else {
 324                 list_add_tail(&buf->vb.queue,&q->queue);
 325                 buf->vb.state = VIDEOBUF_QUEUED;
 326         }
 327         return 0;
 328 }
 329
 330 void saa7134_buffer_finish(struct saa7134_dev *dev,
 331                            struct saa7134_dmaqueue *q,
 332                            unsigned int state)
 333 {
 334         assert_spin_locked(&dev->slock);
 335         dprintk("buffer_finish %p\n",q->curr);
 336
 337         /* finish current buffer */
 338         q->curr->vb.state = state;
 339         do_gettimeofday(&q->curr->vb.ts);
 340         wake_up(&q->curr->vb.done);
 341         q->curr = NULL;
 342 }
 343
 344 void saa7134_buffer_next(struct saa7134_dev *dev,
 345                          struct saa7134_dmaqueue *q)
 346 {
 347         struct saa7134_buf *buf,*next = NULL;
 348
 349         assert_spin_locked(&dev->slock);
 350         BUG_ON(NULL != q->curr);
 351
 352         if (!list_empty(&q->queue)) {
 353                 /* activate next one from queue */
 354                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 355                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 356                         buf,q->queue.prev,q->queue.next);
 357                 list_del(&buf->vb.queue);
 358                 if (!list_empty(&q->queue))
 359                         next = list_entry(q->queue.next,struct saa7134_buf,
 360                                           vb.queue);
 361                 q->curr = buf;
 362                 buf->activate(dev,buf,next);
 363                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 364                         q->queue.prev,q->queue.next);
 365         } else {
 366                 /* nothing to do -- just stop DMA */
 367                 dprintk("buffer_next %p\n",NULL);
 368                 saa7134_set_dmabits(dev);
 369                 del_timer(&q->timeout);
 370         }
 371 }
 372
 373 void saa7134_buffer_timeout(unsigned long data)
 374 {
 375         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 376         struct saa7134_dev *dev = q->dev;
 377         unsigned long flags;
 378
 379         spin_lock_irqsave(&dev->slock,flags);
 380
 381         /* try to reset the hardware (SWRST) */
 382         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 383         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 384         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 385
 386         /* flag current buffer as failed,
 387            try to start over with the next one. */
 388         if (q->curr) {
 389                 dprintk("timeout on %p\n",q->curr);
 390                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 391         }
 392         saa7134_buffer_next(dev,q);
 393         spin_unlock_irqrestore(&dev->slock,flags);
 394 }
 395
 396 /* resends a current buffer in queue after resume */
 397
 398 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
 399                                   struct saa7134_dmaqueue *q)
 400 {
 401         struct saa7134_buf *buf, *next;
 402
 403         assert_spin_locked(&dev->slock);
 404
 405         buf  = q->curr;
 406         next = buf;
 407         dprintk("buffer_requeue\n");
 408
 409         if (!buf)
 410                 return 0;
 411
 412         dprintk("buffer_requeue : resending active buffers \n");
 413
 414         if (!list_empty(&q->queue))
 415                 next = list_entry(q->queue.next, struct saa7134_buf,
 416                                           vb.queue);
 417         buf->activate(dev, buf, next);
 418
 419         return 0;
 420 }
 421
 422 /* ------------------------------------------------------------------ */
 423
 424 int saa7134_set_dmabits(struct saa7134_dev *dev)
 425 {
 426         u32 split, task=0, ctrl=0, irq=0;
 427         enum v4l2_field cap = V4L2_FIELD_ANY;
 428         enum v4l2_field ov  = V4L2_FIELD_ANY;
 429
 430         assert_spin_locked(&dev->slock);
 431
 432         if (dev->insuspend)
 433                 return 0;
 434
 435         /* video capture -- dma 0 + video task A */
 436         if (dev->video_q.curr) {
 437                 task |= 0x01;
 438                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 439                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 440                         SAA7134_IRQ1_INTE_RA0_0;
 441                 cap = dev->video_q.curr->vb.field;
 442         }
 443
 444         /* video capture -- dma 1+2 (planar modes) */
 445         if (dev->video_q.curr &&
 446             dev->video_q.curr->fmt->planar) {
 447                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 448                         SAA7134_MAIN_CTRL_TE5;
 449         }
 450
 451         /* screen overlay -- dma 0 + video task B */
 452         if (dev->ovenable) {
 453                 task |= 0x10;
 454                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 455                 ov = dev->ovfield;
 456         }
 457
 458         /* vbi capture -- dma 0 + vbi task A+B */
 459         if (dev->vbi_q.curr) {
 460                 task |= 0x22;
 461                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 462                         SAA7134_MAIN_CTRL_TE3;
 463                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 464                         SAA7134_IRQ1_INTE_RA0_6 |
 465                         SAA7134_IRQ1_INTE_RA0_5 |
 466                         SAA7134_IRQ1_INTE_RA0_4;
 467         }
 468
 469         /* audio capture -- dma 3 */
 470         if (dev->dmasound.dma_running) {
 471                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 472                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 473                         SAA7134_IRQ1_INTE_RA3_0;
 474         }
 475
 476         /* TS capture -- dma 5 */
 477         if (dev->ts_q.curr) {
 478                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 479                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 480                         SAA7134_IRQ1_INTE_RA2_2 |
 481                         SAA7134_IRQ1_INTE_RA2_1 |
 482                         SAA7134_IRQ1_INTE_RA2_0;
 483         }
 484
 485         /* set task conditions + field handling */
 486         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 487                 /* default config -- use full frames */
 488                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 489                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 490                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 491                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 492                 split = 0;
 493         } else {
 494                 /* split fields between tasks */
 495                 if (V4L2_FIELD_TOP == cap) {
 496                         /* odd A, even B, repeat */
 497                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 498                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 499                 } else {
 500                         /* odd B, even A, repeat */
 501                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 502                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 503                 }
 504                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 505                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 506                 split = 1;
 507         }
 508
 509         /* irqs */
 510         saa_writeb(SAA7134_REGION_ENABLE, task);
 511         saa_writel(SAA7134_IRQ1,          irq);
 512         saa_andorl(SAA7134_MAIN_CTRL,
 513                    SAA7134_MAIN_CTRL_TE0 |
 514                    SAA7134_MAIN_CTRL_TE1 |
 515                    SAA7134_MAIN_CTRL_TE2 |
 516                    SAA7134_MAIN_CTRL_TE3 |
 517                    SAA7134_MAIN_CTRL_TE4 |
 518                    SAA7134_MAIN_CTRL_TE5 |
 519                    SAA7134_MAIN_CTRL_TE6,
 520                    ctrl);
 521         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 522                 task, ctrl, irq, split ? "no" : "yes");
 523
 524         return 0;
 525 }
 526
 527 /* ------------------------------------------------------------------ */
 528 /* IRQ handler + helpers                                              */
 529
 530 static char *irqbits[] = {
 531         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 532         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 533         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 534         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 535 };
 536 #define IRQBITS ARRAY_SIZE(irqbits)
 537
 538 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 539                             unsigned long report, unsigned long status)
 540 {
 541         unsigned int i;
 542
 543         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 544                dev->name,loop,jiffies,report,status);
 545         for (i = 0; i < IRQBITS; i++) {
 546                 if (!(report & (1 << i)))
 547                         continue;
 548                 printk(" %s",irqbits[i]);
 549         }
 550         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 551                 printk(" | RA0=%s,%s,%s,%ld",
 552                        (status & 0x40) ? "vbi"  : "video",
 553                        (status & 0x20) ? "b"    : "a",
 554                        (status & 0x10) ? "odd"  : "even",
 555                        (status & 0x0f));
 556         }
 557         printk("\n");
 558 }
 559
 560 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 561 {
 562         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 563         unsigned long report,status;
 564         int loop, handled = 0;
 565
 566         if (dev->insuspend)
 567                 goto out;
 568
 569         for (loop = 0; loop < 10; loop++) {
 570                 report = saa_readl(SAA7134_IRQ_REPORT);
 571                 status = saa_readl(SAA7134_IRQ_STATUS);
 572
 573                 /* If dmasound support is active and we get a sound report,
 574                  * mask out the report and let the saa7134-alsa module deal
 575                  * with it */
 576                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 577                         (dev->dmasound.priv_data != NULL) )
 578                 {
 579                         if (irq_debug > 1)
 580                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 581                                        dev->name);
 582                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 583                 }
 584
 585                 if (0 == report) {
 586                         if (irq_debug > 1)
 587                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 588                                        dev->name);
 589                         goto out;
 590                 }
 591
 592                 handled = 1;
 593                 saa_writel(SAA7134_IRQ_REPORT,report);
 594                 if (irq_debug)
 595                         print_irqstatus(dev,loop,report,status);
 596
 597
 598                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 599                         (report & SAA7134_IRQ_REPORT_INTL))
 600                                 saa7134_irq_video_signalchange(dev);
 601
 602
 603                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 604                     (status & 0x60) == 0)
 605                         saa7134_irq_video_done(dev,status);
 606
 607                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 608                     (status & 0x40) == 0x40)
 609                         saa7134_irq_vbi_done(dev,status);
 610
 611                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 612                     card_has_mpeg(dev))
 613                         saa7134_irq_ts_done(dev,status);
 614
 615                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 616                         switch (dev->has_remote) {
 617                                 case SAA7134_REMOTE_GPIO:
 618                                         if (!dev->remote)
 619                                                 break;
 620                                         if  (dev->remote->mask_keydown & 0x10000) {
 621                                                 saa7134_input_irq(dev);
 622                                         }
 623                                         break;
 624
 625                                 case SAA7134_REMOTE_I2C:
 626                                         break;                  /* FIXME: invoke I2C get_key() */
 627
 628                                 default:                        /* GPIO16 not used by IR remote */
 629                                         break;
 630                         }
 631                 }
 632
 633                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 634                         switch (dev->has_remote) {
 635                                 case SAA7134_REMOTE_GPIO:
 636                                         if (!dev->remote)
 637                                                 break;
 638                                         if ((dev->remote->mask_keydown & 0x40000) ||
 639                                             (dev->remote->mask_keyup & 0x40000)) {
 640                                                 saa7134_input_irq(dev);
 641                                         }
 642                                         break;
 643
 644                                 case SAA7134_REMOTE_I2C:
 645                                         break;                  /* FIXME: invoke I2C get_key() */
 646
 647                                 default:                        /* GPIO18 not used by IR remote */
 648                                         break;
 649                         }
 650                 }
 651         }
 652
 653         if (10 == loop) {
 654                 print_irqstatus(dev,loop,report,status);
 655                 if (report & SAA7134_IRQ_REPORT_PE) {
 656                         /* disable all parity error */
 657                         printk(KERN_WARNING "%s/irq: looping -- "
 658                                "clearing PE (parity error!) enable bit\n",dev->name);
 659                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 660                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 661                         /* disable gpio16 IRQ */
 662                         printk(KERN_WARNING "%s/irq: looping -- "
 663                                "clearing GPIO16 enable bit\n",dev->name);
 664                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 665                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 666                         /* disable gpio18 IRQs */
 667                         printk(KERN_WARNING "%s/irq: looping -- "
 668                                "clearing GPIO18 enable bit\n",dev->name);
 669                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 670                 } else {
 671                         /* disable all irqs */
 672                         printk(KERN_WARNING "%s/irq: looping -- "
 673                                "clearing all enable bits\n",dev->name);
 674                         saa_writel(SAA7134_IRQ1,0);
 675                         saa_writel(SAA7134_IRQ2,0);
 676                 }
 677         }
 678
 679  out:
 680         return IRQ_RETVAL(handled);
 681 }
 682
 683 /* ------------------------------------------------------------------ */
 684
 685 /* early init (no i2c, no irq) */
 686
 687 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 688 {
 689         /* RAM FIFO config */
 690         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 691         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 692
 693         /* enable audio + video processing */
 694         saa_writel(SAA7134_MAIN_CTRL,
 695                         SAA7134_MAIN_CTRL_VPLLE |
 696                         SAA7134_MAIN_CTRL_APLLE |
 697                         SAA7134_MAIN_CTRL_EXOSC |
 698                         SAA7134_MAIN_CTRL_EVFE1 |
 699                         SAA7134_MAIN_CTRL_EVFE2 |
 700                         SAA7134_MAIN_CTRL_ESFE  |
 701                         SAA7134_MAIN_CTRL_EBDAC);
 702
 703         /*
 704         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 705         * OSS initialization writes to registers via the audio DSP; these
 706         * writes will fail unless the audio clock has been started.  At worst,
 707         * audio will not work.
 708         */
 709
 710         /* enable peripheral devices */
 711         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 712
 713         /* set vertical line numbering start (vbi needs this) */
 714         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 715
 716         return 0;
 717 }
 718
 719 static int saa7134_hwinit1(struct saa7134_dev *dev)
 720 {
 721         dprintk("hwinit1\n");
 722
 723         saa_writel(SAA7134_IRQ1, 0);
 724         saa_writel(SAA7134_IRQ2, 0);
 725         mutex_init(&dev->lock);
 726         spin_lock_init(&dev->slock);
 727
 728         saa7134_track_gpio(dev,"pre-init");
 729         saa7134_video_init1(dev);
 730         saa7134_vbi_init1(dev);
 731         if (card_has_mpeg(dev))
 732                 saa7134_ts_init1(dev);
 733         saa7134_input_init1(dev);
 734
 735         saa7134_hw_enable1(dev);
 736
 737         return 0;
 738 }
 739
 740 /* late init (with i2c + irq) */
 741 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 742 {
 743
 744         unsigned int irq2_mask;
 745
 746         /* enable IRQ's */
 747         irq2_mask =
 748                 SAA7134_IRQ2_INTE_DEC3    |
 749                 SAA7134_IRQ2_INTE_DEC2    |
 750                 SAA7134_IRQ2_INTE_DEC1    |
 751                 SAA7134_IRQ2_INTE_DEC0    |
 752                 SAA7134_IRQ2_INTE_PE      |
 753                 SAA7134_IRQ2_INTE_AR;
 754
 755         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 756                 if (dev->remote->mask_keydown & 0x10000)
 757                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 758                 else if (dev->remote->mask_keydown & 0x40000)
 759                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 760                 else if (dev->remote->mask_keyup & 0x40000)
 761                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 762         }
 763
 764         saa_writel(SAA7134_IRQ1, 0);
 765         saa_writel(SAA7134_IRQ2, irq2_mask);
 766
 767         return 0;
 768 }
 769
 770 static int saa7134_hwinit2(struct saa7134_dev *dev)
 771 {
 772
 773         dprintk("hwinit2\n");
 774
 775         saa7134_video_init2(dev);
 776         saa7134_tvaudio_init2(dev);
 777
 778         saa7134_hw_enable2(dev);
 779
 780         return 0;
 781 }
 782
 783
 784 /* shutdown */
 785 static int saa7134_hwfini(struct saa7134_dev *dev)
 786 {
 787         dprintk("hwfini\n");
 788
 789         if (card_has_mpeg(dev))
 790                 saa7134_ts_fini(dev);
 791         saa7134_input_fini(dev);
 792         saa7134_vbi_fini(dev);
 793         saa7134_tvaudio_fini(dev);
 794         return 0;
 795 }
 796
 797 static void __devinit must_configure_manually(void)
 798 {
 799         unsigned int i,p;
 800
 801         printk(KERN_WARNING
 802                "saa7134: <rant>\n"
 803                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 804                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 805                "saa7134:  subsystem ID and I can't identify it automatically\n"
 806                "saa7134: </rant>\n"
 807                "saa7134: I feel better now.  Ok, here are the good news:\n"
 808                "saa7134: You can use the card=<nr> insmod option to specify\n"
 809                "saa7134: which board do you have.  The list:\n");
 810         for (i = 0; i < saa7134_bcount; i++) {
 811                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 812                        i,saa7134_boards[i].name);
 813                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 814                         if (saa7134_pci_tbl[p].driver_data != i)
 815                                 continue;
 816                         printk(" %04x:%04x",
 817                                saa7134_pci_tbl[p].subvendor,
 818                                saa7134_pci_tbl[p].subdevice);
 819                 }
 820                 printk("\n");
 821         }
 822 }
 823
 824 static struct video_device *vdev_init(struct saa7134_dev *dev,
 825                                       struct video_device *template,
 826                                       char *type)
 827 {
 828         struct video_device *vfd;
 829
 830         vfd = video_device_alloc();
 831         if (NULL == vfd)
 832                 return NULL;
 833         *vfd = *template;
 834         vfd->minor   = -1;
 835         vfd->dev     = &dev->pci->dev;
 836         vfd->release = video_device_release;
 837         vfd->debug   = video_debug;
 838         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 839                  dev->name, type, saa7134_boards[dev->board].name);
 840         return vfd;
 841 }
 842
 843 static void saa7134_unregister_video(struct saa7134_dev *dev)
 844 {
 845         if (dev->video_dev) {
 846                 if (-1 != dev->video_dev->minor)
 847                         video_unregister_device(dev->video_dev);
 848                 else
 849                         video_device_release(dev->video_dev);
 850                 dev->video_dev = NULL;
 851         }
 852         if (dev->vbi_dev) {
 853                 if (-1 != dev->vbi_dev->minor)
 854                         video_unregister_device(dev->vbi_dev);
 855                 else
 856                         video_device_release(dev->vbi_dev);
 857                 dev->vbi_dev = NULL;
 858         }
 859         if (dev->radio_dev) {
 860                 if (-1 != dev->radio_dev->minor)
 861                         video_unregister_device(dev->radio_dev);
 862                 else
 863                         video_device_release(dev->radio_dev);
 864                 dev->radio_dev = NULL;
 865         }
 866 }
 867
 868 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 869                             struct saa7134_dev *dev)
 870 {
 871         int err;
 872
 873         if (NULL != dev->mops)
 874                 return;
 875         if (saa7134_boards[dev->board].mpeg != ops->type)
 876                 return;
 877         err = ops->init(dev);
 878         if (0 != err)
 879                 return;
 880         dev->mops = ops;
 881 }
 882
 883 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 884                             struct saa7134_dev *dev)
 885 {
 886         if (NULL == dev->mops)
 887                 return;
 888         if (dev->mops != ops)
 889                 return;
 890         dev->mops->fini(dev);
 891         dev->mops = NULL;
 892 }
 893
 894 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 895                                      const struct pci_device_id *pci_id)
 896 {
 897         struct saa7134_dev *dev;
 898         struct saa7134_mpeg_ops *mops;
 899         int err;
 900
 901         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 902         if (NULL == dev)
 903                 return -ENOMEM;
 904
 905         /* pci init */
 906         dev->pci = pci_dev;
 907         if (pci_enable_device(pci_dev)) {
 908                 err = -EIO;
 909                 goto fail1;
 910         }
 911
 912         dev->nr = saa7134_devcount;
 913         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 914
 915         /* pci quirks */
 916         if (pci_pci_problems) {
 917                 if (pci_pci_problems & PCIPCI_TRITON)
 918                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 919                 if (pci_pci_problems & PCIPCI_NATOMA)
 920                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 921                 if (pci_pci_problems & PCIPCI_VIAETBF)
 922                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 923                 if (pci_pci_problems & PCIPCI_VSFX)
 924                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 925 #ifdef PCIPCI_ALIMAGIK
 926                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 927                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 928                                dev->name);
 929                         latency = 0x0A;
 930                 }
 931 #endif
 932                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 933                         printk(KERN_INFO "%s: quirk: this driver and your "
 934                                         "chipset may not work together"
 935                                         " in overlay mode.\n",dev->name);
 936                         if (!saa7134_no_overlay) {
 937                                 printk(KERN_INFO "%s: quirk: overlay "
 938                                                 "mode will be disabled.\n",
 939                                                 dev->name);
 940                                 saa7134_no_overlay = 1;
 941                         } else {
 942                                 printk(KERN_INFO "%s: quirk: overlay "
 943                                                 "mode will be forced. Use this"
 944                                                 " option at your own risk.\n",
 945                                                 dev->name);
 946                         }
 947                 }
 948         }
 949         if (UNSET != latency) {
 950                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 951                        dev->name,latency);
 952                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 953         }
 954
 955         /* print pci info */
 956         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 957         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 958         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 959                "latency: %d, mmio: 0x%llx\n", dev->name,
 960                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 961                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 962         pci_set_master(pci_dev);
 963         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 964                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 965                 err = -EIO;
 966                 goto fail1;
 967         }
 968
 969         /* board config */
 970         dev->board = pci_id->driver_data;
 971         if (card[dev->nr] >= 0 &&
 972             card[dev->nr] < saa7134_bcount)
 973                 dev->board = card[dev->nr];
 974         if (SAA7134_BOARD_NOAUTO == dev->board) {
 975                 must_configure_manually();
 976                 dev->board = SAA7134_BOARD_UNKNOWN;
 977         }
 978         dev->autodetected = card[dev->nr] != dev->board;
 979         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 980         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 981         if (UNSET != tuner[dev->nr])
 982                 dev->tuner_type = tuner[dev->nr];
 983                 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 984                 dev->name,pci_dev->subsystem_vendor,
 985                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 986                 dev->board, dev->autodetected ?
 987                 "autodetected" : "insmod option");
 988
 989         /* get mmio */
 990         if (!request_mem_region(pci_resource_start(pci_dev,0),
 991                                 pci_resource_len(pci_dev,0),
 992                                 dev->name)) {
 993                 err = -EBUSY;
 994                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 995                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 996                 goto fail1;
 997         }
 998         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 999         dev->bmmio = (__u8 __iomem *)dev->lmmio;
1000         if (NULL == dev->lmmio) {
1001                 err = -EIO;
1002                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
1003                        dev->name);
1004                 goto fail2;
1005         }
1006
1007         /* initialize hardware #1 */
1008         saa7134_board_init1(dev);
1009         saa7134_hwinit1(dev);
1010
1011         /* get irq */
1012         err = request_irq(pci_dev->irq, saa7134_irq,
1013                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
1014         if (err < 0) {
1015                 printk(KERN_ERR "%s: can't get IRQ %d\n",
1016                        dev->name,pci_dev->irq);
1017                 goto fail3;
1018         }
1019
1020         /* wait a bit, register i2c bus */
1021         msleep(100);
1022         saa7134_i2c_register(dev);
1023
1024         /* initialize hardware #2 */
1025         if (TUNER_ABSENT != dev->tuner_type)
1026                 request_module("tuner");
1027         saa7134_board_init2(dev);
1028
1029         saa7134_hwinit2(dev);
1030
1031         /* load i2c helpers */
1032         if (card_is_empress(dev)) {
1033                 request_module("saa6752hs");
1034         }
1035
1036         request_submodules(dev);
1037
1038         v4l2_prio_init(&dev->prio);
1039
1040         /* register v4l devices */
1041         if (saa7134_no_overlay <= 0) {
1042                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
1043         } else {
1044                 printk("%s: Overlay support disabled.\n",dev->name);
1045         }
1046         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1047         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1048                                     video_nr[dev->nr]);
1049         if (err < 0) {
1050                 printk(KERN_INFO "%s: can't register video device\n",
1051                        dev->name);
1052                 goto fail4;
1053         }
1054         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
1055                dev->name,dev->video_dev->minor & 0x1f);
1056
1057         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1058         dev->vbi_dev->type = VID_TYPE_TUNER | VID_TYPE_TELETEXT;
1059
1060         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1061                                     vbi_nr[dev->nr]);
1062         if (err < 0)
1063                 goto fail4;
1064         printk(KERN_INFO "%s: registered device vbi%d\n",
1065                dev->name,dev->vbi_dev->minor & 0x1f);
1066
1067         if (card_has_radio(dev)) {
1068                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1069                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1070                                             radio_nr[dev->nr]);
1071                 if (err < 0)
1072                         goto fail4;
1073                 printk(KERN_INFO "%s: registered device radio%d\n",
1074                        dev->name,dev->radio_dev->minor & 0x1f);
1075         }
1076
1077         /* everything worked */
1078         pci_set_drvdata(pci_dev,dev);
1079         saa7134_devcount++;
1080
1081         mutex_lock(&devlist_lock);
1082         list_for_each_entry(mops, &mops_list, next)
1083                 mpeg_ops_attach(mops, dev);
1084         list_add_tail(&dev->devlist,&saa7134_devlist);
1085         mutex_unlock(&devlist_lock);
1086
1087         /* check for signal */
1088         saa7134_irq_video_signalchange(dev);
1089
1090         if (saa7134_dmasound_init && !dev->dmasound.priv_data) {
1091                 saa7134_dmasound_init(dev);
1092         }
1093
1094         if (TUNER_ABSENT != dev->tuner_type)
1095                 saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
1096
1097         return 0;
1098
1099  fail4:
1100         saa7134_unregister_video(dev);
1101         saa7134_i2c_unregister(dev);
1102         free_irq(pci_dev->irq, dev);
1103  fail3:
1104         saa7134_hwfini(dev);
1105         iounmap(dev->lmmio);
1106  fail2:
1107         release_mem_region(pci_resource_start(pci_dev,0),
1108                            pci_resource_len(pci_dev,0));
1109  fail1:
1110         kfree(dev);
1111         return err;
1112 }
1113
1114 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1115 {
1116         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1117         struct saa7134_mpeg_ops *mops;
1118
1119         /* Release DMA sound modules if present */
1120         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1121                 saa7134_dmasound_exit(dev);
1122         }
1123
1124         /* debugging ... */
1125         if (irq_debug) {
1126                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1127                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1128                 print_irqstatus(dev,42,report,status);
1129         }
1130
1131         /* disable peripheral devices */
1132         saa_writeb(SAA7134_SPECIAL_MODE,0);
1133
1134         /* shutdown hardware */
1135         saa_writel(SAA7134_IRQ1,0);
1136         saa_writel(SAA7134_IRQ2,0);
1137         saa_writel(SAA7134_MAIN_CTRL,0);
1138
1139         /* shutdown subsystems */
1140         saa7134_hwfini(dev);
1141
1142         /* unregister */
1143         mutex_lock(&devlist_lock);
1144         list_del(&dev->devlist);
1145         list_for_each_entry(mops, &mops_list, next)
1146                 mpeg_ops_detach(mops, dev);
1147         mutex_unlock(&devlist_lock);
1148         saa7134_devcount--;
1149
1150         saa7134_i2c_unregister(dev);
1151         saa7134_unregister_video(dev);
1152
1153
1154         /* the DMA sound modules should be unloaded before reaching
1155            this, but just in case they are still present... */
1156         if (dev->dmasound.priv_data != NULL) {
1157                 free_irq(pci_dev->irq, &dev->dmasound);
1158                 dev->dmasound.priv_data = NULL;
1159         }
1160
1161
1162         /* release resources */
1163         free_irq(pci_dev->irq, dev);
1164         iounmap(dev->lmmio);
1165         release_mem_region(pci_resource_start(pci_dev,0),
1166                            pci_resource_len(pci_dev,0));
1167
1168         pci_set_drvdata(pci_dev, NULL);
1169
1170         /* free memory */
1171         kfree(dev);
1172 }
1173
1174 #ifdef CONFIG_PM
1175 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1176 {
1177
1178         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1179
1180         /* disable overlay - apps should enable it explicitly on resume*/
1181         dev->ovenable = 0;
1182
1183         /* Disable interrupts, DMA, and rest of the chip*/
1184         saa_writel(SAA7134_IRQ1, 0);
1185         saa_writel(SAA7134_IRQ2, 0);
1186         saa_writel(SAA7134_MAIN_CTRL, 0);
1187
1188         dev->insuspend = 1;
1189         synchronize_irq(pci_dev->irq);
1190
1191         /* ACK interrupts once more, just in case,
1192                 since the IRQ handler won't ack them anymore*/
1193
1194         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1195
1196         /* Disable timeout timers - if we have active buffers, we will
1197            fill them on resume*/
1198
1199         del_timer(&dev->video_q.timeout);
1200         del_timer(&dev->vbi_q.timeout);
1201         del_timer(&dev->ts_q.timeout);
1202
1203         if (dev->remote)
1204                 saa7134_ir_stop(dev);
1205
1206         pci_save_state(pci_dev);
1207         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1208
1209         return 0;
1210 }
1211
1212 static int saa7134_resume(struct pci_dev *pci_dev)
1213 {
1214         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1215         unsigned long flags;
1216
1217         pci_set_power_state(pci_dev, PCI_D0);
1218         pci_restore_state(pci_dev);
1219
1220         /* Do things that are done in saa7134_initdev ,
1221                 except of initializing memory structures.*/
1222
1223         saa7134_board_init1(dev);
1224
1225         /* saa7134_hwinit1 */
1226         if (saa7134_boards[dev->board].video_out)
1227                 saa7134_videoport_init(dev);
1228         if (card_has_mpeg(dev))
1229                 saa7134_ts_init_hw(dev);
1230         if (dev->remote)
1231                 saa7134_ir_start(dev, dev->remote);
1232         saa7134_hw_enable1(dev);
1233
1234         msleep(100);
1235
1236         saa7134_board_init2(dev);
1237
1238         /*saa7134_hwinit2*/
1239         saa7134_set_tvnorm_hw(dev);
1240         saa7134_tvaudio_setmute(dev);
1241         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1242         saa7134_tvaudio_init(dev);
1243         saa7134_tvaudio_do_scan(dev);
1244         saa7134_enable_i2s(dev);
1245         saa7134_hw_enable2(dev);
1246
1247         saa7134_irq_video_signalchange(dev);
1248
1249         /*resume unfinished buffer(s)*/
1250         spin_lock_irqsave(&dev->slock, flags);
1251         saa7134_buffer_requeue(dev, &dev->video_q);
1252         saa7134_buffer_requeue(dev, &dev->vbi_q);
1253         saa7134_buffer_requeue(dev, &dev->ts_q);
1254
1255         /* FIXME: Disable DMA audio sound - temporary till proper support
1256                   is implemented*/
1257
1258         dev->dmasound.dma_running = 0;
1259
1260         /* start DMA now*/
1261         dev->insuspend = 0;
1262         smp_wmb();
1263         saa7134_set_dmabits(dev);
1264         spin_unlock_irqrestore(&dev->slock, flags);
1265
1266         return 0;
1267 }
1268 #endif
1269
1270 /* ----------------------------------------------------------- */
1271
1272 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1273 {
1274         struct saa7134_dev *dev;
1275
1276         mutex_lock(&devlist_lock);
1277         list_for_each_entry(dev, &saa7134_devlist, devlist)
1278                 mpeg_ops_attach(ops, dev);
1279         list_add_tail(&ops->next,&mops_list);
1280         mutex_unlock(&devlist_lock);
1281         return 0;
1282 }
1283
1284 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1285 {
1286         struct saa7134_dev *dev;
1287
1288         mutex_lock(&devlist_lock);
1289         list_del(&ops->next);
1290         list_for_each_entry(dev, &saa7134_devlist, devlist)
1291                 mpeg_ops_detach(ops, dev);
1292         mutex_unlock(&devlist_lock);
1293 }
1294
1295 EXPORT_SYMBOL(saa7134_ts_register);
1296 EXPORT_SYMBOL(saa7134_ts_unregister);
1297
1298 /* ----------------------------------------------------------- */
1299
1300 static struct pci_driver saa7134_pci_driver = {
1301         .name     = "saa7134",
1302         .id_table = saa7134_pci_tbl,
1303         .probe    = saa7134_initdev,
1304         .remove   = __devexit_p(saa7134_finidev),
1305 #ifdef CONFIG_PM
1306         .suspend  = saa7134_suspend,
1307         .resume   = saa7134_resume
1308 #endif
1309 };
1310
1311 static int saa7134_init(void)
1312 {
1313         INIT_LIST_HEAD(&saa7134_devlist);
1314         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1315                (SAA7134_VERSION_CODE >> 16) & 0xff,
1316                (SAA7134_VERSION_CODE >>  8) & 0xff,
1317                SAA7134_VERSION_CODE & 0xff);
1318 #ifdef SNAPSHOT
1319         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1320                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1321 #endif
1322         return pci_register_driver(&saa7134_pci_driver);
1323 }
1324
1325 static void saa7134_fini(void)
1326 {
1327         pci_unregister_driver(&saa7134_pci_driver);
1328 }
1329
1330 module_init(saa7134_init);
1331 module_exit(saa7134_fini);
1332
1333 /* ----------------------------------------------------------- */
1334
1335 EXPORT_SYMBOL(saa7134_set_gpio);
1336 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1337 EXPORT_SYMBOL(saa7134_devlist);
1338 EXPORT_SYMBOL(saa7134_boards);
1339
1340 /* ----------------- for the DMA sound modules --------------- */
1341
1342 EXPORT_SYMBOL(saa7134_dmasound_init);
1343 EXPORT_SYMBOL(saa7134_dmasound_exit);
1344 EXPORT_SYMBOL(saa7134_pgtable_free);
1345 EXPORT_SYMBOL(saa7134_pgtable_build);
1346 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1347 EXPORT_SYMBOL(saa7134_set_dmabits);
1348
1349 /* ----------------------------------------------------------- */
1350 /*
1351  * Local variables:
1352  * c-basic-offset: 8
1353  * End:
1354  */