git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/saa7134/saa7134-core.c

   1 /*
   2  *
   3  * device driver for philips saa7134 based TV cards
   4  * driver core
   5  *
   6  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/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;
  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;
  50 module_param(core_debug, int, 0644);
  51 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  52
  53 static unsigned int gpio_tracking;
  54 module_param(gpio_tracking, int, 0644);
  55 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  56
  57 static unsigned int alsa;
  58 module_param(alsa, int, 0644);
  59 MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
  60
  61 static unsigned int oss;
  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 /* ------------------------------------------------------------------ */
 146
 147
 148 /* ----------------------------------------------------------- */
 149 /* delayed request_module                                      */
 150
 151 #if defined(CONFIG_MODULES) && defined(MODULE)
 152
 153
 154 static void request_module_async(struct work_struct *work){
 155         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 156         if (card_is_empress(dev))
 157                 request_module("saa7134-empress");
 158         if (card_is_dvb(dev))
 159                 request_module("saa7134-dvb");
 160         if (alsa)
 161                 request_module("saa7134-alsa");
 162         if (oss)
 163                 request_module("saa7134-oss");
 164 }
 165
 166 static void request_submodules(struct saa7134_dev *dev)
 167 {
 168         INIT_WORK(&dev->request_module_wk, request_module_async);
 169         schedule_work(&dev->request_module_wk);
 170 }
 171
 172 #else
 173 #define request_submodules(dev)
 174 #endif /* CONFIG_MODULES */
 175
 176 /* ------------------------------------------------------------------ */
 177
 178 /* nr of (saa7134-)pages for the given buffer size */
 179 static int saa7134_buffer_pages(int size)
 180 {
 181         size  = PAGE_ALIGN(size);
 182         size += PAGE_SIZE; /* for non-page-aligned buffers */
 183         size /= 4096;
 184         return size;
 185 }
 186
 187 /* calc max # of buffers from size (must not exceed the 4MB virtual
 188  * address space per DMA channel) */
 189 int saa7134_buffer_count(unsigned int size, unsigned int count)
 190 {
 191         unsigned int maxcount;
 192
 193         maxcount = 1024 / saa7134_buffer_pages(size);
 194         if (count > maxcount)
 195                 count = maxcount;
 196         return count;
 197 }
 198
 199 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 200 {
 201         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 202 }
 203
 204 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 205 {
 206         unsigned long base;
 207         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 208
 209         base  = saa7134_buffer_startpage(buf) * 4096;
 210         base += dma->sglist[0].offset;
 211         return base;
 212 }
 213
 214 /* ------------------------------------------------------------------ */
 215
 216 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 217 {
 218         __le32       *cpu;
 219         dma_addr_t   dma_addr;
 220
 221         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 222         if (NULL == cpu)
 223                 return -ENOMEM;
 224         pt->size = SAA7134_PGTABLE_SIZE;
 225         pt->cpu  = cpu;
 226         pt->dma  = dma_addr;
 227         return 0;
 228 }
 229
 230 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 231                           struct scatterlist *list, unsigned int length,
 232                           unsigned int startpage)
 233 {
 234         __le32        *ptr;
 235         unsigned int  i,p;
 236
 237         BUG_ON(NULL == pt || NULL == pt->cpu);
 238
 239         ptr = pt->cpu + startpage;
 240         for (i = 0; i < length; i++, list++)
 241                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 242                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 243         return 0;
 244 }
 245
 246 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 247 {
 248         if (NULL == pt->cpu)
 249                 return;
 250         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 251         pt->cpu = NULL;
 252 }
 253
 254 /* ------------------------------------------------------------------ */
 255
 256 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 257 {
 258         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 259         BUG_ON(in_interrupt());
 260
 261         videobuf_waiton(&buf->vb,0,0);
 262         videobuf_dma_unmap(q, dma);
 263         videobuf_dma_free(dma);
 264         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 265 }
 266
 267 /* ------------------------------------------------------------------ */
 268
 269 int saa7134_buffer_queue(struct saa7134_dev *dev,
 270                          struct saa7134_dmaqueue *q,
 271                          struct saa7134_buf *buf)
 272 {
 273         struct saa7134_buf *next = NULL;
 274
 275         assert_spin_locked(&dev->slock);
 276         dprintk("buffer_queue %p\n",buf);
 277         if (NULL == q->curr) {
 278                 if (!q->need_two) {
 279                         q->curr = buf;
 280                         buf->activate(dev,buf,NULL);
 281                 } else if (list_empty(&q->queue)) {
 282                         list_add_tail(&buf->vb.queue,&q->queue);
 283                         buf->vb.state = VIDEOBUF_QUEUED;
 284                 } else {
 285                         next = list_entry(q->queue.next,struct saa7134_buf,
 286                                           vb.queue);
 287                         q->curr = buf;
 288                         buf->activate(dev,buf,next);
 289                 }
 290         } else {
 291                 list_add_tail(&buf->vb.queue,&q->queue);
 292                 buf->vb.state = VIDEOBUF_QUEUED;
 293         }
 294         return 0;
 295 }
 296
 297 void saa7134_buffer_finish(struct saa7134_dev *dev,
 298                            struct saa7134_dmaqueue *q,
 299                            unsigned int state)
 300 {
 301         assert_spin_locked(&dev->slock);
 302         dprintk("buffer_finish %p\n",q->curr);
 303
 304         /* finish current buffer */
 305         q->curr->vb.state = state;
 306         do_gettimeofday(&q->curr->vb.ts);
 307         wake_up(&q->curr->vb.done);
 308         q->curr = NULL;
 309 }
 310
 311 void saa7134_buffer_next(struct saa7134_dev *dev,
 312                          struct saa7134_dmaqueue *q)
 313 {
 314         struct saa7134_buf *buf,*next = NULL;
 315
 316         assert_spin_locked(&dev->slock);
 317         BUG_ON(NULL != q->curr);
 318
 319         if (!list_empty(&q->queue)) {
 320                 /* activate next one from queue */
 321                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 322                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 323                         buf,q->queue.prev,q->queue.next);
 324                 list_del(&buf->vb.queue);
 325                 if (!list_empty(&q->queue))
 326                         next = list_entry(q->queue.next,struct saa7134_buf,
 327                                           vb.queue);
 328                 q->curr = buf;
 329                 buf->activate(dev,buf,next);
 330                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 331                         q->queue.prev,q->queue.next);
 332         } else {
 333                 /* nothing to do -- just stop DMA */
 334                 dprintk("buffer_next %p\n",NULL);
 335                 saa7134_set_dmabits(dev);
 336                 del_timer(&q->timeout);
 337         }
 338 }
 339
 340 void saa7134_buffer_timeout(unsigned long data)
 341 {
 342         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 343         struct saa7134_dev *dev = q->dev;
 344         unsigned long flags;
 345
 346         spin_lock_irqsave(&dev->slock,flags);
 347
 348         /* try to reset the hardware (SWRST) */
 349         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 350         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 351         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 352
 353         /* flag current buffer as failed,
 354            try to start over with the next one. */
 355         if (q->curr) {
 356                 dprintk("timeout on %p\n",q->curr);
 357                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 358         }
 359         saa7134_buffer_next(dev,q);
 360         spin_unlock_irqrestore(&dev->slock,flags);
 361 }
 362
 363 /* resends a current buffer in queue after resume */
 364
 365 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
 366                                   struct saa7134_dmaqueue *q)
 367 {
 368         struct saa7134_buf *buf, *next;
 369
 370         assert_spin_locked(&dev->slock);
 371
 372         buf  = q->curr;
 373         next = buf;
 374         dprintk("buffer_requeue\n");
 375
 376         if (!buf)
 377                 return 0;
 378
 379         dprintk("buffer_requeue : resending active buffers \n");
 380
 381         if (!list_empty(&q->queue))
 382                 next = list_entry(q->queue.next, struct saa7134_buf,
 383                                           vb.queue);
 384         buf->activate(dev, buf, next);
 385
 386         return 0;
 387 }
 388
 389 /* ------------------------------------------------------------------ */
 390
 391 int saa7134_set_dmabits(struct saa7134_dev *dev)
 392 {
 393         u32 split, task=0, ctrl=0, irq=0;
 394         enum v4l2_field cap = V4L2_FIELD_ANY;
 395         enum v4l2_field ov  = V4L2_FIELD_ANY;
 396
 397         assert_spin_locked(&dev->slock);
 398
 399         if (dev->insuspend)
 400                 return 0;
 401
 402         /* video capture -- dma 0 + video task A */
 403         if (dev->video_q.curr) {
 404                 task |= 0x01;
 405                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 406                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 407                         SAA7134_IRQ1_INTE_RA0_0;
 408                 cap = dev->video_q.curr->vb.field;
 409         }
 410
 411         /* video capture -- dma 1+2 (planar modes) */
 412         if (dev->video_q.curr &&
 413             dev->video_q.curr->fmt->planar) {
 414                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 415                         SAA7134_MAIN_CTRL_TE5;
 416         }
 417
 418         /* screen overlay -- dma 0 + video task B */
 419         if (dev->ovenable) {
 420                 task |= 0x10;
 421                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 422                 ov = dev->ovfield;
 423         }
 424
 425         /* vbi capture -- dma 0 + vbi task A+B */
 426         if (dev->vbi_q.curr) {
 427                 task |= 0x22;
 428                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 429                         SAA7134_MAIN_CTRL_TE3;
 430                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 431                         SAA7134_IRQ1_INTE_RA0_6 |
 432                         SAA7134_IRQ1_INTE_RA0_5 |
 433                         SAA7134_IRQ1_INTE_RA0_4;
 434         }
 435
 436         /* audio capture -- dma 3 */
 437         if (dev->dmasound.dma_running) {
 438                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 439                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 440                         SAA7134_IRQ1_INTE_RA3_0;
 441         }
 442
 443         /* TS capture -- dma 5 */
 444         if (dev->ts_q.curr) {
 445                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 446                 irq  |= SAA7134_IRQ1_INTE_RA2_3 |
 447                         SAA7134_IRQ1_INTE_RA2_2 |
 448                         SAA7134_IRQ1_INTE_RA2_1 |
 449                         SAA7134_IRQ1_INTE_RA2_0;
 450         }
 451
 452         /* set task conditions + field handling */
 453         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 454                 /* default config -- use full frames */
 455                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 456                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 457                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 458                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 459                 split = 0;
 460         } else {
 461                 /* split fields between tasks */
 462                 if (V4L2_FIELD_TOP == cap) {
 463                         /* odd A, even B, repeat */
 464                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 465                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 466                 } else {
 467                         /* odd B, even A, repeat */
 468                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 469                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 470                 }
 471                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 472                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 473                 split = 1;
 474         }
 475
 476         /* irqs */
 477         saa_writeb(SAA7134_REGION_ENABLE, task);
 478         saa_writel(SAA7134_IRQ1,          irq);
 479         saa_andorl(SAA7134_MAIN_CTRL,
 480                    SAA7134_MAIN_CTRL_TE0 |
 481                    SAA7134_MAIN_CTRL_TE1 |
 482                    SAA7134_MAIN_CTRL_TE2 |
 483                    SAA7134_MAIN_CTRL_TE3 |
 484                    SAA7134_MAIN_CTRL_TE4 |
 485                    SAA7134_MAIN_CTRL_TE5 |
 486                    SAA7134_MAIN_CTRL_TE6,
 487                    ctrl);
 488         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 489                 task, ctrl, irq, split ? "no" : "yes");
 490
 491         return 0;
 492 }
 493
 494 /* ------------------------------------------------------------------ */
 495 /* IRQ handler + helpers                                              */
 496
 497 static char *irqbits[] = {
 498         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 499         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 500         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 501         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 502 };
 503 #define IRQBITS ARRAY_SIZE(irqbits)
 504
 505 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 506                             unsigned long report, unsigned long status)
 507 {
 508         unsigned int i;
 509
 510         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 511                dev->name,loop,jiffies,report,status);
 512         for (i = 0; i < IRQBITS; i++) {
 513                 if (!(report & (1 << i)))
 514                         continue;
 515                 printk(" %s",irqbits[i]);
 516         }
 517         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 518                 printk(" | RA0=%s,%s,%s,%ld",
 519                        (status & 0x40) ? "vbi"  : "video",
 520                        (status & 0x20) ? "b"    : "a",
 521                        (status & 0x10) ? "odd"  : "even",
 522                        (status & 0x0f));
 523         }
 524         printk("\n");
 525 }
 526
 527 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 528 {
 529         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 530         unsigned long report,status;
 531         int loop, handled = 0;
 532
 533         if (dev->insuspend)
 534                 goto out;
 535
 536         for (loop = 0; loop < 10; loop++) {
 537                 report = saa_readl(SAA7134_IRQ_REPORT);
 538                 status = saa_readl(SAA7134_IRQ_STATUS);
 539
 540                 /* If dmasound support is active and we get a sound report,
 541                  * mask out the report and let the saa7134-alsa module deal
 542                  * with it */
 543                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 544                         (dev->dmasound.priv_data != NULL) )
 545                 {
 546                         if (irq_debug > 1)
 547                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 548                                        dev->name);
 549                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 550                 }
 551
 552                 if (0 == report) {
 553                         if (irq_debug > 1)
 554                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 555                                        dev->name);
 556                         goto out;
 557                 }
 558
 559                 handled = 1;
 560                 saa_writel(SAA7134_IRQ_REPORT,report);
 561                 if (irq_debug)
 562                         print_irqstatus(dev,loop,report,status);
 563
 564
 565                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 566                         (report & SAA7134_IRQ_REPORT_INTL))
 567                                 saa7134_irq_video_signalchange(dev);
 568
 569
 570                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 571                     (status & 0x60) == 0)
 572                         saa7134_irq_video_done(dev,status);
 573
 574                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 575                     (status & 0x40) == 0x40)
 576                         saa7134_irq_vbi_done(dev,status);
 577
 578                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 579                     card_has_mpeg(dev))
 580                         saa7134_irq_ts_done(dev,status);
 581
 582                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 583                         switch (dev->has_remote) {
 584                                 case SAA7134_REMOTE_GPIO:
 585                                         if (!dev->remote)
 586                                                 break;
 587                                         if  (dev->remote->mask_keydown & 0x10000) {
 588                                                 saa7134_input_irq(dev);
 589                                         }
 590                                         break;
 591
 592                                 case SAA7134_REMOTE_I2C:
 593                                         break;                  /* FIXME: invoke I2C get_key() */
 594
 595                                 default:                        /* GPIO16 not used by IR remote */
 596                                         break;
 597                         }
 598                 }
 599
 600                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 601                         switch (dev->has_remote) {
 602                                 case SAA7134_REMOTE_GPIO:
 603                                         if (!dev->remote)
 604                                                 break;
 605                                         if ((dev->remote->mask_keydown & 0x40000) ||
 606                                             (dev->remote->mask_keyup & 0x40000)) {
 607                                                 saa7134_input_irq(dev);
 608                                         }
 609                                         break;
 610
 611                                 case SAA7134_REMOTE_I2C:
 612                                         break;                  /* FIXME: invoke I2C get_key() */
 613
 614                                 default:                        /* GPIO18 not used by IR remote */
 615                                         break;
 616                         }
 617                 }
 618         }
 619
 620         if (10 == loop) {
 621                 print_irqstatus(dev,loop,report,status);
 622                 if (report & SAA7134_IRQ_REPORT_PE) {
 623                         /* disable all parity error */
 624                         printk(KERN_WARNING "%s/irq: looping -- "
 625                                "clearing PE (parity error!) enable bit\n",dev->name);
 626                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 627                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 628                         /* disable gpio16 IRQ */
 629                         printk(KERN_WARNING "%s/irq: looping -- "
 630                                "clearing GPIO16 enable bit\n",dev->name);
 631                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 632                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 633                         /* disable gpio18 IRQs */
 634                         printk(KERN_WARNING "%s/irq: looping -- "
 635                                "clearing GPIO18 enable bit\n",dev->name);
 636                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 637                 } else {
 638                         /* disable all irqs */
 639                         printk(KERN_WARNING "%s/irq: looping -- "
 640                                "clearing all enable bits\n",dev->name);
 641                         saa_writel(SAA7134_IRQ1,0);
 642                         saa_writel(SAA7134_IRQ2,0);
 643                 }
 644         }
 645
 646  out:
 647         return IRQ_RETVAL(handled);
 648 }
 649
 650 /* ------------------------------------------------------------------ */
 651
 652 /* early init (no i2c, no irq) */
 653
 654 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 655 {
 656         /* RAM FIFO config */
 657         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 658         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 659
 660         /* enable audio + video processing */
 661         saa_writel(SAA7134_MAIN_CTRL,
 662                         SAA7134_MAIN_CTRL_VPLLE |
 663                         SAA7134_MAIN_CTRL_APLLE |
 664                         SAA7134_MAIN_CTRL_EXOSC |
 665                         SAA7134_MAIN_CTRL_EVFE1 |
 666                         SAA7134_MAIN_CTRL_EVFE2 |
 667                         SAA7134_MAIN_CTRL_ESFE  |
 668                         SAA7134_MAIN_CTRL_EBDAC);
 669
 670         /*
 671         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 672         * OSS initialization writes to registers via the audio DSP; these
 673         * writes will fail unless the audio clock has been started.  At worst,
 674         * audio will not work.
 675         */
 676
 677         /* enable peripheral devices */
 678         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 679
 680         /* set vertical line numbering start (vbi needs this) */
 681         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 682
 683         return 0;
 684 }
 685
 686 static int saa7134_hwinit1(struct saa7134_dev *dev)
 687 {
 688         dprintk("hwinit1\n");
 689
 690         saa_writel(SAA7134_IRQ1, 0);
 691         saa_writel(SAA7134_IRQ2, 0);
 692         mutex_init(&dev->lock);
 693         spin_lock_init(&dev->slock);
 694
 695         saa7134_track_gpio(dev,"pre-init");
 696         saa7134_video_init1(dev);
 697         saa7134_vbi_init1(dev);
 698         if (card_has_mpeg(dev))
 699                 saa7134_ts_init1(dev);
 700         saa7134_input_init1(dev);
 701
 702         saa7134_hw_enable1(dev);
 703
 704         return 0;
 705 }
 706
 707 /* late init (with i2c + irq) */
 708 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 709 {
 710
 711         unsigned int irq2_mask;
 712
 713         /* enable IRQ's */
 714         irq2_mask =
 715                 SAA7134_IRQ2_INTE_DEC3    |
 716                 SAA7134_IRQ2_INTE_DEC2    |
 717                 SAA7134_IRQ2_INTE_DEC1    |
 718                 SAA7134_IRQ2_INTE_DEC0    |
 719                 SAA7134_IRQ2_INTE_PE      |
 720                 SAA7134_IRQ2_INTE_AR;
 721
 722         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 723                 if (dev->remote->mask_keydown & 0x10000)
 724                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 725                 else if (dev->remote->mask_keydown & 0x40000)
 726                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 727                 else if (dev->remote->mask_keyup & 0x40000)
 728                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 729         }
 730
 731         saa_writel(SAA7134_IRQ1, 0);
 732         saa_writel(SAA7134_IRQ2, irq2_mask);
 733
 734         return 0;
 735 }
 736
 737 static int saa7134_hwinit2(struct saa7134_dev *dev)
 738 {
 739
 740         dprintk("hwinit2\n");
 741
 742         saa7134_video_init2(dev);
 743         saa7134_tvaudio_init2(dev);
 744
 745         saa7134_hw_enable2(dev);
 746
 747         return 0;
 748 }
 749
 750
 751 /* shutdown */
 752 static int saa7134_hwfini(struct saa7134_dev *dev)
 753 {
 754         dprintk("hwfini\n");
 755
 756         if (card_has_mpeg(dev))
 757                 saa7134_ts_fini(dev);
 758         saa7134_input_fini(dev);
 759         saa7134_vbi_fini(dev);
 760         saa7134_tvaudio_fini(dev);
 761         return 0;
 762 }
 763
 764 static void __devinit must_configure_manually(void)
 765 {
 766         unsigned int i,p;
 767
 768         printk(KERN_WARNING
 769                "saa7134: <rant>\n"
 770                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 771                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 772                "saa7134:  subsystem ID and I can't identify it automatically\n"
 773                "saa7134: </rant>\n"
 774                "saa7134: I feel better now.  Ok, here are the good news:\n"
 775                "saa7134: You can use the card=<nr> insmod option to specify\n"
 776                "saa7134: which board do you have.  The list:\n");
 777         for (i = 0; i < saa7134_bcount; i++) {
 778                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 779                        i,saa7134_boards[i].name);
 780                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 781                         if (saa7134_pci_tbl[p].driver_data != i)
 782                                 continue;
 783                         printk(" %04x:%04x",
 784                                saa7134_pci_tbl[p].subvendor,
 785                                saa7134_pci_tbl[p].subdevice);
 786                 }
 787                 printk("\n");
 788         }
 789 }
 790
 791 static struct video_device *vdev_init(struct saa7134_dev *dev,
 792                                       struct video_device *template,
 793                                       char *type)
 794 {
 795         struct video_device *vfd;
 796
 797         vfd = video_device_alloc();
 798         if (NULL == vfd)
 799                 return NULL;
 800         *vfd = *template;
 801         vfd->minor   = -1;
 802         vfd->dev     = &dev->pci->dev;
 803         vfd->release = video_device_release;
 804         vfd->debug   = video_debug;
 805         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 806                  dev->name, type, saa7134_boards[dev->board].name);
 807         return vfd;
 808 }
 809
 810 static void saa7134_unregister_video(struct saa7134_dev *dev)
 811 {
 812         if (dev->video_dev) {
 813                 if (-1 != dev->video_dev->minor)
 814                         video_unregister_device(dev->video_dev);
 815                 else
 816                         video_device_release(dev->video_dev);
 817                 dev->video_dev = NULL;
 818         }
 819         if (dev->vbi_dev) {
 820                 if (-1 != dev->vbi_dev->minor)
 821                         video_unregister_device(dev->vbi_dev);
 822                 else
 823                         video_device_release(dev->vbi_dev);
 824                 dev->vbi_dev = NULL;
 825         }
 826         if (dev->radio_dev) {
 827                 if (-1 != dev->radio_dev->minor)
 828                         video_unregister_device(dev->radio_dev);
 829                 else
 830                         video_device_release(dev->radio_dev);
 831                 dev->radio_dev = NULL;
 832         }
 833 }
 834
 835 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 836                             struct saa7134_dev *dev)
 837 {
 838         int err;
 839
 840         if (NULL != dev->mops)
 841                 return;
 842         if (saa7134_boards[dev->board].mpeg != ops->type)
 843                 return;
 844         err = ops->init(dev);
 845         if (0 != err)
 846                 return;
 847         dev->mops = ops;
 848 }
 849
 850 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 851                             struct saa7134_dev *dev)
 852 {
 853         if (NULL == dev->mops)
 854                 return;
 855         if (dev->mops != ops)
 856                 return;
 857         dev->mops->fini(dev);
 858         dev->mops = NULL;
 859 }
 860
 861 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 862                                      const struct pci_device_id *pci_id)
 863 {
 864         struct saa7134_dev *dev;
 865         struct saa7134_mpeg_ops *mops;
 866         int err;
 867         int mask;
 868
 869         if (saa7134_devcount == SAA7134_MAXBOARDS)
 870                 return -ENOMEM;
 871
 872         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 873         if (NULL == dev)
 874                 return -ENOMEM;
 875
 876         /* pci init */
 877         dev->pci = pci_dev;
 878         if (pci_enable_device(pci_dev)) {
 879                 err = -EIO;
 880                 goto fail1;
 881         }
 882
 883         dev->nr = saa7134_devcount;
 884         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 885
 886         /* pci quirks */
 887         if (pci_pci_problems) {
 888                 if (pci_pci_problems & PCIPCI_TRITON)
 889                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 890                 if (pci_pci_problems & PCIPCI_NATOMA)
 891                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 892                 if (pci_pci_problems & PCIPCI_VIAETBF)
 893                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 894                 if (pci_pci_problems & PCIPCI_VSFX)
 895                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 896 #ifdef PCIPCI_ALIMAGIK
 897                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 898                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 899                                dev->name);
 900                         latency = 0x0A;
 901                 }
 902 #endif
 903                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 904                         printk(KERN_INFO "%s: quirk: this driver and your "
 905                                         "chipset may not work together"
 906                                         " in overlay mode.\n",dev->name);
 907                         if (!saa7134_no_overlay) {
 908                                 printk(KERN_INFO "%s: quirk: overlay "
 909                                                 "mode will be disabled.\n",
 910                                                 dev->name);
 911                                 saa7134_no_overlay = 1;
 912                         } else {
 913                                 printk(KERN_INFO "%s: quirk: overlay "
 914                                                 "mode will be forced. Use this"
 915                                                 " option at your own risk.\n",
 916                                                 dev->name);
 917                         }
 918                 }
 919         }
 920         if (UNSET != latency) {
 921                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 922                        dev->name,latency);
 923                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 924         }
 925
 926         /* print pci info */
 927         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 928         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 929         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 930                "latency: %d, mmio: 0x%llx\n", dev->name,
 931                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 932                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 933         pci_set_master(pci_dev);
 934         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 935                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 936                 err = -EIO;
 937                 goto fail1;
 938         }
 939
 940         /* board config */
 941         dev->board = pci_id->driver_data;
 942         if (card[dev->nr] >= 0 &&
 943             card[dev->nr] < saa7134_bcount)
 944                 dev->board = card[dev->nr];
 945         if (SAA7134_BOARD_NOAUTO == dev->board) {
 946                 must_configure_manually();
 947                 dev->board = SAA7134_BOARD_UNKNOWN;
 948         }
 949         dev->autodetected = card[dev->nr] != dev->board;
 950         dev->tuner_type   = saa7134_boards[dev->board].tuner_type;
 951         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 952         if (UNSET != tuner[dev->nr])
 953                 dev->tuner_type = tuner[dev->nr];
 954                 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 955                 dev->name,pci_dev->subsystem_vendor,
 956                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 957                 dev->board, dev->autodetected ?
 958                 "autodetected" : "insmod option");
 959
 960         /* get mmio */
 961         if (!request_mem_region(pci_resource_start(pci_dev,0),
 962                                 pci_resource_len(pci_dev,0),
 963                                 dev->name)) {
 964                 err = -EBUSY;
 965                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 966                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 967                 goto fail1;
 968         }
 969         dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
 970         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 971         if (NULL == dev->lmmio) {
 972                 err = -EIO;
 973                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 974                        dev->name);
 975                 goto fail2;
 976         }
 977
 978         /* initialize hardware #1 */
 979         saa7134_board_init1(dev);
 980         saa7134_hwinit1(dev);
 981
 982         /* get irq */
 983         err = request_irq(pci_dev->irq, saa7134_irq,
 984                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 985         if (err < 0) {
 986                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 987                        dev->name,pci_dev->irq);
 988                 goto fail3;
 989         }
 990
 991         /* wait a bit, register i2c bus */
 992         msleep(100);
 993         saa7134_i2c_register(dev);
 994
 995         /* initialize hardware #2 */
 996         if (TUNER_ABSENT != dev->tuner_type)
 997                 request_module("tuner");
 998         saa7134_board_init2(dev);
 999
1000         saa7134_hwinit2(dev);
1001
1002         /* load i2c helpers */
1003         if (card_is_empress(dev)) {
1004                 request_module("saa6752hs");
1005         }
1006
1007         request_submodules(dev);
1008
1009         v4l2_prio_init(&dev->prio);
1010
1011         /* register v4l devices */
1012         if (saa7134_no_overlay <= 0) {
1013                 saa7134_video_template.type |= VID_TYPE_OVERLAY;
1014         } else {
1015                 printk("%s: Overlay support disabled.\n",dev->name);
1016         }
1017         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1018         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1019                                     video_nr[dev->nr]);
1020         if (err < 0) {
1021                 printk(KERN_INFO "%s: can't register video device\n",
1022                        dev->name);
1023                 goto fail4;
1024         }
1025         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
1026                dev->name,dev->video_dev->minor & 0x1f);
1027
1028         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1029         dev->vbi_dev->type = VID_TYPE_TUNER | VID_TYPE_TELETEXT;
1030
1031         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1032                                     vbi_nr[dev->nr]);
1033         if (err < 0)
1034                 goto fail4;
1035         printk(KERN_INFO "%s: registered device vbi%d\n",
1036                dev->name,dev->vbi_dev->minor & 0x1f);
1037
1038         if (card_has_radio(dev)) {
1039                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1040                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1041                                             radio_nr[dev->nr]);
1042                 if (err < 0)
1043                         goto fail4;
1044                 printk(KERN_INFO "%s: registered device radio%d\n",
1045                        dev->name,dev->radio_dev->minor & 0x1f);
1046         }
1047
1048         /* everything worked */
1049         pci_set_drvdata(pci_dev,dev);
1050         saa7134_devcount++;
1051
1052         mutex_lock(&devlist_lock);
1053         list_for_each_entry(mops, &mops_list, next)
1054                 mpeg_ops_attach(mops, dev);
1055         list_add_tail(&dev->devlist,&saa7134_devlist);
1056         mutex_unlock(&devlist_lock);
1057
1058         /* check for signal */
1059         saa7134_irq_video_signalchange(dev);
1060
1061         if (saa7134_dmasound_init && !dev->dmasound.priv_data) {
1062                 saa7134_dmasound_init(dev);
1063         }
1064
1065         if (TUNER_ABSENT != dev->tuner_type)
1066                 saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
1067
1068         return 0;
1069
1070  fail4:
1071         saa7134_unregister_video(dev);
1072         saa7134_i2c_unregister(dev);
1073         free_irq(pci_dev->irq, dev);
1074  fail3:
1075         saa7134_hwfini(dev);
1076         iounmap(dev->lmmio);
1077  fail2:
1078         release_mem_region(pci_resource_start(pci_dev,0),
1079                            pci_resource_len(pci_dev,0));
1080  fail1:
1081         kfree(dev);
1082         return err;
1083 }
1084
1085 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1086 {
1087         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1088         struct saa7134_mpeg_ops *mops;
1089
1090         /* Release DMA sound modules if present */
1091         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1092                 saa7134_dmasound_exit(dev);
1093         }
1094
1095         /* debugging ... */
1096         if (irq_debug) {
1097                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1098                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1099                 print_irqstatus(dev,42,report,status);
1100         }
1101
1102         /* disable peripheral devices */
1103         saa_writeb(SAA7134_SPECIAL_MODE,0);
1104
1105         /* shutdown hardware */
1106         saa_writel(SAA7134_IRQ1,0);
1107         saa_writel(SAA7134_IRQ2,0);
1108         saa_writel(SAA7134_MAIN_CTRL,0);
1109
1110         /* shutdown subsystems */
1111         saa7134_hwfini(dev);
1112
1113         /* unregister */
1114         mutex_lock(&devlist_lock);
1115         list_del(&dev->devlist);
1116         list_for_each_entry(mops, &mops_list, next)
1117                 mpeg_ops_detach(mops, dev);
1118         mutex_unlock(&devlist_lock);
1119         saa7134_devcount--;
1120
1121         saa7134_i2c_unregister(dev);
1122         saa7134_unregister_video(dev);
1123
1124
1125         /* the DMA sound modules should be unloaded before reaching
1126            this, but just in case they are still present... */
1127         if (dev->dmasound.priv_data != NULL) {
1128                 free_irq(pci_dev->irq, &dev->dmasound);
1129                 dev->dmasound.priv_data = NULL;
1130         }
1131
1132
1133         /* release resources */
1134         free_irq(pci_dev->irq, dev);
1135         iounmap(dev->lmmio);
1136         release_mem_region(pci_resource_start(pci_dev,0),
1137                            pci_resource_len(pci_dev,0));
1138
1139         pci_set_drvdata(pci_dev, NULL);
1140
1141         /* free memory */
1142         kfree(dev);
1143 }
1144
1145 #ifdef CONFIG_PM
1146 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1147 {
1148
1149         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1150
1151         /* disable overlay - apps should enable it explicitly on resume*/
1152         dev->ovenable = 0;
1153
1154         /* Disable interrupts, DMA, and rest of the chip*/
1155         saa_writel(SAA7134_IRQ1, 0);
1156         saa_writel(SAA7134_IRQ2, 0);
1157         saa_writel(SAA7134_MAIN_CTRL, 0);
1158
1159         dev->insuspend = 1;
1160         synchronize_irq(pci_dev->irq);
1161
1162         /* ACK interrupts once more, just in case,
1163                 since the IRQ handler won't ack them anymore*/
1164
1165         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1166
1167         /* Disable timeout timers - if we have active buffers, we will
1168            fill them on resume*/
1169
1170         del_timer(&dev->video_q.timeout);
1171         del_timer(&dev->vbi_q.timeout);
1172         del_timer(&dev->ts_q.timeout);
1173
1174         if (dev->remote)
1175                 saa7134_ir_stop(dev);
1176
1177         pci_save_state(pci_dev);
1178         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1179
1180         return 0;
1181 }
1182
1183 static int saa7134_resume(struct pci_dev *pci_dev)
1184 {
1185         struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1186         unsigned long flags;
1187
1188         pci_set_power_state(pci_dev, PCI_D0);
1189         pci_restore_state(pci_dev);
1190
1191         /* Do things that are done in saa7134_initdev ,
1192                 except of initializing memory structures.*/
1193
1194         saa7134_board_init1(dev);
1195
1196         /* saa7134_hwinit1 */
1197         if (saa7134_boards[dev->board].video_out)
1198                 saa7134_videoport_init(dev);
1199         if (card_has_mpeg(dev))
1200                 saa7134_ts_init_hw(dev);
1201         if (dev->remote)
1202                 saa7134_ir_start(dev, dev->remote);
1203         saa7134_hw_enable1(dev);
1204
1205         msleep(100);
1206
1207         saa7134_board_init2(dev);
1208
1209         /*saa7134_hwinit2*/
1210         saa7134_set_tvnorm_hw(dev);
1211         saa7134_tvaudio_setmute(dev);
1212         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1213         saa7134_tvaudio_init(dev);
1214         saa7134_tvaudio_do_scan(dev);
1215         saa7134_enable_i2s(dev);
1216         saa7134_hw_enable2(dev);
1217
1218         saa7134_irq_video_signalchange(dev);
1219
1220         /*resume unfinished buffer(s)*/
1221         spin_lock_irqsave(&dev->slock, flags);
1222         saa7134_buffer_requeue(dev, &dev->video_q);
1223         saa7134_buffer_requeue(dev, &dev->vbi_q);
1224         saa7134_buffer_requeue(dev, &dev->ts_q);
1225
1226         /* FIXME: Disable DMA audio sound - temporary till proper support
1227                   is implemented*/
1228
1229         dev->dmasound.dma_running = 0;
1230
1231         /* start DMA now*/
1232         dev->insuspend = 0;
1233         smp_wmb();
1234         saa7134_set_dmabits(dev);
1235         spin_unlock_irqrestore(&dev->slock, flags);
1236
1237         return 0;
1238 }
1239 #endif
1240
1241 /* ----------------------------------------------------------- */
1242
1243 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1244 {
1245         struct saa7134_dev *dev;
1246
1247         mutex_lock(&devlist_lock);
1248         list_for_each_entry(dev, &saa7134_devlist, devlist)
1249                 mpeg_ops_attach(ops, dev);
1250         list_add_tail(&ops->next,&mops_list);
1251         mutex_unlock(&devlist_lock);
1252         return 0;
1253 }
1254
1255 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1256 {
1257         struct saa7134_dev *dev;
1258
1259         mutex_lock(&devlist_lock);
1260         list_del(&ops->next);
1261         list_for_each_entry(dev, &saa7134_devlist, devlist)
1262                 mpeg_ops_detach(ops, dev);
1263         mutex_unlock(&devlist_lock);
1264 }
1265
1266 EXPORT_SYMBOL(saa7134_ts_register);
1267 EXPORT_SYMBOL(saa7134_ts_unregister);
1268
1269 /* ----------------------------------------------------------- */
1270
1271 static struct pci_driver saa7134_pci_driver = {
1272         .name     = "saa7134",
1273         .id_table = saa7134_pci_tbl,
1274         .probe    = saa7134_initdev,
1275         .remove   = __devexit_p(saa7134_finidev),
1276 #ifdef CONFIG_PM
1277         .suspend  = saa7134_suspend,
1278         .resume   = saa7134_resume
1279 #endif
1280 };
1281
1282 static int saa7134_init(void)
1283 {
1284         INIT_LIST_HEAD(&saa7134_devlist);
1285         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1286                (SAA7134_VERSION_CODE >> 16) & 0xff,
1287                (SAA7134_VERSION_CODE >>  8) & 0xff,
1288                SAA7134_VERSION_CODE & 0xff);
1289 #ifdef SNAPSHOT
1290         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1291                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1292 #endif
1293         return pci_register_driver(&saa7134_pci_driver);
1294 }
1295
1296 static void saa7134_fini(void)
1297 {
1298         pci_unregister_driver(&saa7134_pci_driver);
1299 }
1300
1301 module_init(saa7134_init);
1302 module_exit(saa7134_fini);
1303
1304 /* ----------------------------------------------------------- */
1305
1306 EXPORT_SYMBOL(saa7134_set_gpio);
1307 EXPORT_SYMBOL(saa7134_i2c_call_clients);
1308 EXPORT_SYMBOL(saa7134_devlist);
1309 EXPORT_SYMBOL(saa7134_boards);
1310
1311 /* ----------------- for the DMA sound modules --------------- */
1312
1313 EXPORT_SYMBOL(saa7134_dmasound_init);
1314 EXPORT_SYMBOL(saa7134_dmasound_exit);
1315 EXPORT_SYMBOL(saa7134_pgtable_free);
1316 EXPORT_SYMBOL(saa7134_pgtable_build);
1317 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1318 EXPORT_SYMBOL(saa7134_set_dmabits);
1319
1320 /* ----------------------------------------------------------- */
1321 /*
1322  * Local variables:
1323  * c-basic-offset: 8
1324  * End:
1325  */