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 MODULE_VERSION(SAA7134_VERSION);
  43
  44
  45 /* ------------------------------------------------------------------ */
  46
  47 static unsigned int irq_debug;
  48 module_param(irq_debug, int, 0644);
  49 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  50
  51 static unsigned int core_debug;
  52 module_param(core_debug, int, 0644);
  53 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  54
  55 static unsigned int gpio_tracking;
  56 module_param(gpio_tracking, int, 0644);
  57 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  58
  59 static unsigned int alsa = 1;
  60 module_param(alsa, int, 0644);
  61 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  62
  63 static unsigned int latency = UNSET;
  64 module_param(latency, int, 0444);
  65 MODULE_PARM_DESC(latency,"pci latency timer");
  66
  67 int saa7134_no_overlay=-1;
  68 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  69 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  70                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  71
  72 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  73 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  74 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77
  78
  79 module_param_array(video_nr, int, NULL, 0444);
  80 module_param_array(vbi_nr,   int, NULL, 0444);
  81 module_param_array(radio_nr, int, NULL, 0444);
  82 module_param_array(tuner,    int, NULL, 0444);
  83 module_param_array(card,     int, NULL, 0444);
  84
  85 MODULE_PARM_DESC(video_nr, "video device number");
  86 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  87 MODULE_PARM_DESC(radio_nr, "radio device number");
  88 MODULE_PARM_DESC(tuner,    "tuner type");
  89 MODULE_PARM_DESC(card,     "card type");
  90
  91 DEFINE_MUTEX(saa7134_devlist_lock);
  92 EXPORT_SYMBOL(saa7134_devlist_lock);
  93 LIST_HEAD(saa7134_devlist);
  94 EXPORT_SYMBOL(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 static void request_module_async(struct work_struct *work){
 154         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 155         if (card_is_empress(dev))
 156                 request_module("saa7134-empress");
 157         if (card_is_dvb(dev))
 158                 request_module("saa7134-dvb");
 159         if (alsa) {
 160                 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 161                         request_module("saa7134-alsa");
 162         }
 163 }
 164
 165 static void request_submodules(struct saa7134_dev *dev)
 166 {
 167         INIT_WORK(&dev->request_module_wk, request_module_async);
 168         schedule_work(&dev->request_module_wk);
 169 }
 170
 171 static void flush_request_submodules(struct saa7134_dev *dev)
 172 {
 173         flush_work_sync(&dev->request_module_wk);
 174 }
 175
 176 #else
 177 #define request_submodules(dev)
 178 #define flush_request_submodules(dev)
 179 #endif /* CONFIG_MODULES */
 180
 181 /* ------------------------------------------------------------------ */
 182
 183 /* nr of (saa7134-)pages for the given buffer size */
 184 static int saa7134_buffer_pages(int size)
 185 {
 186         size  = PAGE_ALIGN(size);
 187         size += PAGE_SIZE; /* for non-page-aligned buffers */
 188         size /= 4096;
 189         return size;
 190 }
 191
 192 /* calc max # of buffers from size (must not exceed the 4MB virtual
 193  * address space per DMA channel) */
 194 int saa7134_buffer_count(unsigned int size, unsigned int count)
 195 {
 196         unsigned int maxcount;
 197
 198         maxcount = 1024 / saa7134_buffer_pages(size);
 199         if (count > maxcount)
 200                 count = maxcount;
 201         return count;
 202 }
 203
 204 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 205 {
 206         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 207 }
 208
 209 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 210 {
 211         unsigned long base;
 212         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 213
 214         base  = saa7134_buffer_startpage(buf) * 4096;
 215         base += dma->sglist[0].offset;
 216         return base;
 217 }
 218
 219 /* ------------------------------------------------------------------ */
 220
 221 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 222 {
 223         __le32       *cpu;
 224         dma_addr_t   dma_addr = 0;
 225
 226         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 227         if (NULL == cpu)
 228                 return -ENOMEM;
 229         pt->size = SAA7134_PGTABLE_SIZE;
 230         pt->cpu  = cpu;
 231         pt->dma  = dma_addr;
 232         return 0;
 233 }
 234
 235 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 236                           struct scatterlist *list, unsigned int length,
 237                           unsigned int startpage)
 238 {
 239         __le32        *ptr;
 240         unsigned int  i,p;
 241
 242         BUG_ON(NULL == pt || NULL == pt->cpu);
 243
 244         ptr = pt->cpu + startpage;
 245         for (i = 0; i < length; i++, list++)
 246                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 247                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 248         return 0;
 249 }
 250
 251 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 252 {
 253         if (NULL == pt->cpu)
 254                 return;
 255         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 256         pt->cpu = NULL;
 257 }
 258
 259 /* ------------------------------------------------------------------ */
 260
 261 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 262 {
 263         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 264         BUG_ON(in_interrupt());
 265
 266         videobuf_waiton(q, &buf->vb, 0, 0);
 267         videobuf_dma_unmap(q->dev, dma);
 268         videobuf_dma_free(dma);
 269         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 270 }
 271
 272 /* ------------------------------------------------------------------ */
 273
 274 int saa7134_buffer_queue(struct saa7134_dev *dev,
 275                          struct saa7134_dmaqueue *q,
 276                          struct saa7134_buf *buf)
 277 {
 278         struct saa7134_buf *next = NULL;
 279
 280         assert_spin_locked(&dev->slock);
 281         dprintk("buffer_queue %p\n",buf);
 282         if (NULL == q->curr) {
 283                 if (!q->need_two) {
 284                         q->curr = buf;
 285                         buf->activate(dev,buf,NULL);
 286                 } else if (list_empty(&q->queue)) {
 287                         list_add_tail(&buf->vb.queue,&q->queue);
 288                         buf->vb.state = VIDEOBUF_QUEUED;
 289                 } else {
 290                         next = list_entry(q->queue.next,struct saa7134_buf,
 291                                           vb.queue);
 292                         q->curr = buf;
 293                         buf->activate(dev,buf,next);
 294                 }
 295         } else {
 296                 list_add_tail(&buf->vb.queue,&q->queue);
 297                 buf->vb.state = VIDEOBUF_QUEUED;
 298         }
 299         return 0;
 300 }
 301
 302 void saa7134_buffer_finish(struct saa7134_dev *dev,
 303                            struct saa7134_dmaqueue *q,
 304                            unsigned int state)
 305 {
 306         assert_spin_locked(&dev->slock);
 307         dprintk("buffer_finish %p\n",q->curr);
 308
 309         /* finish current buffer */
 310         q->curr->vb.state = state;
 311         do_gettimeofday(&q->curr->vb.ts);
 312         wake_up(&q->curr->vb.done);
 313         q->curr = NULL;
 314 }
 315
 316 void saa7134_buffer_next(struct saa7134_dev *dev,
 317                          struct saa7134_dmaqueue *q)
 318 {
 319         struct saa7134_buf *buf,*next = NULL;
 320
 321         assert_spin_locked(&dev->slock);
 322         BUG_ON(NULL != q->curr);
 323
 324         if (!list_empty(&q->queue)) {
 325                 /* activate next one from queue */
 326                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 327                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 328                         buf,q->queue.prev,q->queue.next);
 329                 list_del(&buf->vb.queue);
 330                 if (!list_empty(&q->queue))
 331                         next = list_entry(q->queue.next,struct saa7134_buf,
 332                                           vb.queue);
 333                 q->curr = buf;
 334                 buf->activate(dev,buf,next);
 335                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 336                         q->queue.prev,q->queue.next);
 337         } else {
 338                 /* nothing to do -- just stop DMA */
 339                 dprintk("buffer_next %p\n",NULL);
 340                 saa7134_set_dmabits(dev);
 341                 del_timer(&q->timeout);
 342
 343                 if (card_has_mpeg(dev))
 344                         if (dev->ts_started)
 345                                 saa7134_ts_stop(dev);
 346         }
 347 }
 348
 349 void saa7134_buffer_timeout(unsigned long data)
 350 {
 351         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 352         struct saa7134_dev *dev = q->dev;
 353         unsigned long flags;
 354
 355         spin_lock_irqsave(&dev->slock,flags);
 356
 357         /* try to reset the hardware (SWRST) */
 358         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 359         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 360         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 361
 362         /* flag current buffer as failed,
 363            try to start over with the next one. */
 364         if (q->curr) {
 365                 dprintk("timeout on %p\n",q->curr);
 366                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 367         }
 368         saa7134_buffer_next(dev,q);
 369         spin_unlock_irqrestore(&dev->slock,flags);
 370 }
 371
 372 /* ------------------------------------------------------------------ */
 373
 374 int saa7134_set_dmabits(struct saa7134_dev *dev)
 375 {
 376         u32 split, task=0, ctrl=0, irq=0;
 377         enum v4l2_field cap = V4L2_FIELD_ANY;
 378         enum v4l2_field ov  = V4L2_FIELD_ANY;
 379
 380         assert_spin_locked(&dev->slock);
 381
 382         if (dev->insuspend)
 383                 return 0;
 384
 385         /* video capture -- dma 0 + video task A */
 386         if (dev->video_q.curr) {
 387                 task |= 0x01;
 388                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 389                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 390                         SAA7134_IRQ1_INTE_RA0_0;
 391                 cap = dev->video_q.curr->vb.field;
 392         }
 393
 394         /* video capture -- dma 1+2 (planar modes) */
 395         if (dev->video_q.curr &&
 396             dev->video_q.curr->fmt->planar) {
 397                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 398                         SAA7134_MAIN_CTRL_TE5;
 399         }
 400
 401         /* screen overlay -- dma 0 + video task B */
 402         if (dev->ovenable) {
 403                 task |= 0x10;
 404                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 405                 ov = dev->ovfield;
 406         }
 407
 408         /* vbi capture -- dma 0 + vbi task A+B */
 409         if (dev->vbi_q.curr) {
 410                 task |= 0x22;
 411                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 412                         SAA7134_MAIN_CTRL_TE3;
 413                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 414                         SAA7134_IRQ1_INTE_RA0_6 |
 415                         SAA7134_IRQ1_INTE_RA0_5 |
 416                         SAA7134_IRQ1_INTE_RA0_4;
 417         }
 418
 419         /* audio capture -- dma 3 */
 420         if (dev->dmasound.dma_running) {
 421                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 422                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 423                         SAA7134_IRQ1_INTE_RA3_0;
 424         }
 425
 426         /* TS capture -- dma 5 */
 427         if (dev->ts_q.curr) {
 428                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 429                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 430                         SAA7134_IRQ1_INTE_RA2_0;
 431         }
 432
 433         /* set task conditions + field handling */
 434         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 435                 /* default config -- use full frames */
 436                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 437                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 438                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 439                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 440                 split = 0;
 441         } else {
 442                 /* split fields between tasks */
 443                 if (V4L2_FIELD_TOP == cap) {
 444                         /* odd A, even B, repeat */
 445                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 446                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 447                 } else {
 448                         /* odd B, even A, repeat */
 449                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 450                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 451                 }
 452                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 453                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 454                 split = 1;
 455         }
 456
 457         /* irqs */
 458         saa_writeb(SAA7134_REGION_ENABLE, task);
 459         saa_writel(SAA7134_IRQ1,          irq);
 460         saa_andorl(SAA7134_MAIN_CTRL,
 461                    SAA7134_MAIN_CTRL_TE0 |
 462                    SAA7134_MAIN_CTRL_TE1 |
 463                    SAA7134_MAIN_CTRL_TE2 |
 464                    SAA7134_MAIN_CTRL_TE3 |
 465                    SAA7134_MAIN_CTRL_TE4 |
 466                    SAA7134_MAIN_CTRL_TE5 |
 467                    SAA7134_MAIN_CTRL_TE6,
 468                    ctrl);
 469         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 470                 task, ctrl, irq, split ? "no" : "yes");
 471
 472         return 0;
 473 }
 474
 475 /* ------------------------------------------------------------------ */
 476 /* IRQ handler + helpers                                              */
 477
 478 static char *irqbits[] = {
 479         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 480         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 481         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 482         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 483 };
 484 #define IRQBITS ARRAY_SIZE(irqbits)
 485
 486 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 487                             unsigned long report, unsigned long status)
 488 {
 489         unsigned int i;
 490
 491         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 492                dev->name,loop,jiffies,report,status);
 493         for (i = 0; i < IRQBITS; i++) {
 494                 if (!(report & (1 << i)))
 495                         continue;
 496                 printk(" %s",irqbits[i]);
 497         }
 498         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 499                 printk(" | RA0=%s,%s,%s,%ld",
 500                        (status & 0x40) ? "vbi"  : "video",
 501                        (status & 0x20) ? "b"    : "a",
 502                        (status & 0x10) ? "odd"  : "even",
 503                        (status & 0x0f));
 504         }
 505         printk("\n");
 506 }
 507
 508 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 509 {
 510         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 511         unsigned long report,status;
 512         int loop, handled = 0;
 513
 514         if (dev->insuspend)
 515                 goto out;
 516
 517         for (loop = 0; loop < 10; loop++) {
 518                 report = saa_readl(SAA7134_IRQ_REPORT);
 519                 status = saa_readl(SAA7134_IRQ_STATUS);
 520
 521                 /* If dmasound support is active and we get a sound report,
 522                  * mask out the report and let the saa7134-alsa module deal
 523                  * with it */
 524                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 525                         (dev->dmasound.priv_data != NULL) )
 526                 {
 527                         if (irq_debug > 1)
 528                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 529                                        dev->name);
 530                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 531                 }
 532
 533                 if (0 == report) {
 534                         if (irq_debug > 1)
 535                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 536                                        dev->name);
 537                         goto out;
 538                 }
 539
 540                 handled = 1;
 541                 saa_writel(SAA7134_IRQ_REPORT,report);
 542                 if (irq_debug)
 543                         print_irqstatus(dev,loop,report,status);
 544
 545
 546                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 547                         (report & SAA7134_IRQ_REPORT_INTL))
 548                                 saa7134_irq_video_signalchange(dev);
 549
 550
 551                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 552                     (status & 0x60) == 0)
 553                         saa7134_irq_video_done(dev,status);
 554
 555                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 556                     (status & 0x40) == 0x40)
 557                         saa7134_irq_vbi_done(dev,status);
 558
 559                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 560                     card_has_mpeg(dev))
 561                         saa7134_irq_ts_done(dev,status);
 562
 563                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 564                         switch (dev->has_remote) {
 565                                 case SAA7134_REMOTE_GPIO:
 566                                         if (!dev->remote)
 567                                                 break;
 568                                         if  (dev->remote->mask_keydown & 0x10000) {
 569                                                 saa7134_input_irq(dev);
 570                                         }
 571                                         break;
 572
 573                                 case SAA7134_REMOTE_I2C:
 574                                         break;                  /* FIXME: invoke I2C get_key() */
 575
 576                                 default:                        /* GPIO16 not used by IR remote */
 577                                         break;
 578                         }
 579                 }
 580
 581                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 582                         switch (dev->has_remote) {
 583                                 case SAA7134_REMOTE_GPIO:
 584                                         if (!dev->remote)
 585                                                 break;
 586                                         if ((dev->remote->mask_keydown & 0x40000) ||
 587                                             (dev->remote->mask_keyup & 0x40000)) {
 588                                                 saa7134_input_irq(dev);
 589                                         }
 590                                         break;
 591
 592                                 case SAA7134_REMOTE_I2C:
 593                                         break;                  /* FIXME: invoke I2C get_key() */
 594
 595                                 default:                        /* GPIO18 not used by IR remote */
 596                                         break;
 597                         }
 598                 }
 599         }
 600
 601         if (10 == loop) {
 602                 print_irqstatus(dev,loop,report,status);
 603                 if (report & SAA7134_IRQ_REPORT_PE) {
 604                         /* disable all parity error */
 605                         printk(KERN_WARNING "%s/irq: looping -- "
 606                                "clearing PE (parity error!) enable bit\n",dev->name);
 607                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 608                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 609                         /* disable gpio16 IRQ */
 610                         printk(KERN_WARNING "%s/irq: looping -- "
 611                                "clearing GPIO16 enable bit\n",dev->name);
 612                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 613                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 614                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 615                         /* disable gpio18 IRQs */
 616                         printk(KERN_WARNING "%s/irq: looping -- "
 617                                "clearing GPIO18 enable bit\n",dev->name);
 618                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 619                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 620                 } else {
 621                         /* disable all irqs */
 622                         printk(KERN_WARNING "%s/irq: looping -- "
 623                                "clearing all enable bits\n",dev->name);
 624                         saa_writel(SAA7134_IRQ1,0);
 625                         saa_writel(SAA7134_IRQ2,0);
 626                 }
 627         }
 628
 629  out:
 630         return IRQ_RETVAL(handled);
 631 }
 632
 633 /* ------------------------------------------------------------------ */
 634
 635 /* early init (no i2c, no irq) */
 636
 637 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 638 {
 639         /* RAM FIFO config */
 640         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 641         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 642
 643         /* enable audio + video processing */
 644         saa_writel(SAA7134_MAIN_CTRL,
 645                         SAA7134_MAIN_CTRL_VPLLE |
 646                         SAA7134_MAIN_CTRL_APLLE |
 647                         SAA7134_MAIN_CTRL_EXOSC |
 648                         SAA7134_MAIN_CTRL_EVFE1 |
 649                         SAA7134_MAIN_CTRL_EVFE2 |
 650                         SAA7134_MAIN_CTRL_ESFE  |
 651                         SAA7134_MAIN_CTRL_EBDAC);
 652
 653         /*
 654         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 655         * OSS initialization writes to registers via the audio DSP; these
 656         * writes will fail unless the audio clock has been started.  At worst,
 657         * audio will not work.
 658         */
 659
 660         /* enable peripheral devices */
 661         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 662
 663         /* set vertical line numbering start (vbi needs this) */
 664         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 665
 666         return 0;
 667 }
 668
 669 static int saa7134_hwinit1(struct saa7134_dev *dev)
 670 {
 671         dprintk("hwinit1\n");
 672
 673         saa_writel(SAA7134_IRQ1, 0);
 674         saa_writel(SAA7134_IRQ2, 0);
 675
 676         /* Clear any stale IRQ reports */
 677         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 678
 679         mutex_init(&dev->lock);
 680         spin_lock_init(&dev->slock);
 681
 682         saa7134_track_gpio(dev,"pre-init");
 683         saa7134_video_init1(dev);
 684         saa7134_vbi_init1(dev);
 685         if (card_has_mpeg(dev))
 686                 saa7134_ts_init1(dev);
 687         saa7134_input_init1(dev);
 688
 689         saa7134_hw_enable1(dev);
 690
 691         return 0;
 692 }
 693
 694 /* late init (with i2c + irq) */
 695 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 696 {
 697
 698         unsigned int irq2_mask;
 699
 700         /* enable IRQ's */
 701         irq2_mask =
 702                 SAA7134_IRQ2_INTE_DEC3    |
 703                 SAA7134_IRQ2_INTE_DEC2    |
 704                 SAA7134_IRQ2_INTE_DEC1    |
 705                 SAA7134_IRQ2_INTE_DEC0    |
 706                 SAA7134_IRQ2_INTE_PE      |
 707                 SAA7134_IRQ2_INTE_AR;
 708
 709         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 710                 if (dev->remote->mask_keydown & 0x10000)
 711                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 712                 else {          /* Allow enabling both IRQ edge triggers */
 713                         if (dev->remote->mask_keydown & 0x40000)
 714                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 715                         if (dev->remote->mask_keyup & 0x40000)
 716                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 717                 }
 718         }
 719
 720         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 721                 request_module("ir-kbd-i2c");
 722         }
 723
 724         saa_writel(SAA7134_IRQ1, 0);
 725         saa_writel(SAA7134_IRQ2, irq2_mask);
 726
 727         return 0;
 728 }
 729
 730 static int saa7134_hwinit2(struct saa7134_dev *dev)
 731 {
 732
 733         dprintk("hwinit2\n");
 734
 735         saa7134_video_init2(dev);
 736         saa7134_tvaudio_init2(dev);
 737
 738         saa7134_hw_enable2(dev);
 739
 740         return 0;
 741 }
 742
 743
 744 /* shutdown */
 745 static int saa7134_hwfini(struct saa7134_dev *dev)
 746 {
 747         dprintk("hwfini\n");
 748
 749         if (card_has_mpeg(dev))
 750                 saa7134_ts_fini(dev);
 751         saa7134_input_fini(dev);
 752         saa7134_vbi_fini(dev);
 753         saa7134_tvaudio_fini(dev);
 754         return 0;
 755 }
 756
 757 static void __devinit must_configure_manually(int has_eeprom)
 758 {
 759         unsigned int i,p;
 760
 761         if (!has_eeprom)
 762                 printk(KERN_WARNING
 763                        "saa7134: <rant>\n"
 764                        "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 765                        "saa7134:  cents for a eeprom, thus your pci board has no\n"
 766                        "saa7134:  subsystem ID and I can't identify it automatically\n"
 767                        "saa7134: </rant>\n"
 768                        "saa7134: I feel better now.  Ok, here are the good news:\n"
 769                        "saa7134: You can use the card=<nr> insmod option to specify\n"
 770                        "saa7134: which board do you have.  The list:\n");
 771         else
 772                 printk(KERN_WARNING
 773                        "saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 774                        "saa7134: insmod option to specify which board do you have, but this is\n"
 775                        "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 776                        "saa7134: for support at linux-media@vger.kernel.org.\n"
 777                        "saa7134: The supported cards are:\n");
 778
 779         for (i = 0; i < saa7134_bcount; i++) {
 780                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 781                        i,saa7134_boards[i].name);
 782                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 783                         if (saa7134_pci_tbl[p].driver_data != i)
 784                                 continue;
 785                         printk(" %04x:%04x",
 786                                saa7134_pci_tbl[p].subvendor,
 787                                saa7134_pci_tbl[p].subdevice);
 788                 }
 789                 printk("\n");
 790         }
 791 }
 792
 793 static struct video_device *vdev_init(struct saa7134_dev *dev,
 794                                       struct video_device *template,
 795                                       char *type)
 796 {
 797         struct video_device *vfd;
 798
 799         vfd = video_device_alloc();
 800         if (NULL == vfd)
 801                 return NULL;
 802         *vfd = *template;
 803         vfd->v4l2_dev  = &dev->v4l2_dev;
 804         vfd->release = video_device_release;
 805         vfd->debug   = video_debug;
 806         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 807                  dev->name, type, saa7134_boards[dev->board].name);
 808         video_set_drvdata(vfd, dev);
 809         return vfd;
 810 }
 811
 812 static void saa7134_unregister_video(struct saa7134_dev *dev)
 813 {
 814         if (dev->video_dev) {
 815                 if (video_is_registered(dev->video_dev))
 816                         video_unregister_device(dev->video_dev);
 817                 else
 818                         video_device_release(dev->video_dev);
 819                 dev->video_dev = NULL;
 820         }
 821         if (dev->vbi_dev) {
 822                 if (video_is_registered(dev->vbi_dev))
 823                         video_unregister_device(dev->vbi_dev);
 824                 else
 825                         video_device_release(dev->vbi_dev);
 826                 dev->vbi_dev = NULL;
 827         }
 828         if (dev->radio_dev) {
 829                 if (video_is_registered(dev->radio_dev))
 830                         video_unregister_device(dev->radio_dev);
 831                 else
 832                         video_device_release(dev->radio_dev);
 833                 dev->radio_dev = NULL;
 834         }
 835 }
 836
 837 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 838                             struct saa7134_dev *dev)
 839 {
 840         int err;
 841
 842         if (NULL != dev->mops)
 843                 return;
 844         if (saa7134_boards[dev->board].mpeg != ops->type)
 845                 return;
 846         err = ops->init(dev);
 847         if (0 != err)
 848                 return;
 849         dev->mops = ops;
 850 }
 851
 852 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 853                             struct saa7134_dev *dev)
 854 {
 855         if (NULL == dev->mops)
 856                 return;
 857         if (dev->mops != ops)
 858                 return;
 859         dev->mops->fini(dev);
 860         dev->mops = NULL;
 861 }
 862
 863 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 864                                      const struct pci_device_id *pci_id)
 865 {
 866         struct saa7134_dev *dev;
 867         struct saa7134_mpeg_ops *mops;
 868         int err;
 869
 870         if (saa7134_devcount == SAA7134_MAXBOARDS)
 871                 return -ENOMEM;
 872
 873         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 874         if (NULL == dev)
 875                 return -ENOMEM;
 876
 877         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 878         if (err)
 879                 goto fail0;
 880
 881         /* pci init */
 882         dev->pci = pci_dev;
 883         if (pci_enable_device(pci_dev)) {
 884                 err = -EIO;
 885                 goto fail1;
 886         }
 887
 888         dev->nr = saa7134_devcount;
 889         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 890
 891         /* pci quirks */
 892         if (pci_pci_problems) {
 893                 if (pci_pci_problems & PCIPCI_TRITON)
 894                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 895                 if (pci_pci_problems & PCIPCI_NATOMA)
 896                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 897                 if (pci_pci_problems & PCIPCI_VIAETBF)
 898                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 899                 if (pci_pci_problems & PCIPCI_VSFX)
 900                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 901 #ifdef PCIPCI_ALIMAGIK
 902                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 903                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 904                                dev->name);
 905                         latency = 0x0A;
 906                 }
 907 #endif
 908                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 909                         printk(KERN_INFO "%s: quirk: this driver and your "
 910                                         "chipset may not work together"
 911                                         " in overlay mode.\n",dev->name);
 912                         if (!saa7134_no_overlay) {
 913                                 printk(KERN_INFO "%s: quirk: overlay "
 914                                                 "mode will be disabled.\n",
 915                                                 dev->name);
 916                                 saa7134_no_overlay = 1;
 917                         } else {
 918                                 printk(KERN_INFO "%s: quirk: overlay "
 919                                                 "mode will be forced. Use this"
 920                                                 " option at your own risk.\n",
 921                                                 dev->name);
 922                         }
 923                 }
 924         }
 925         if (UNSET != latency) {
 926                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 927                        dev->name,latency);
 928                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 929         }
 930
 931         /* print pci info */
 932         dev->pci_rev = pci_dev->revision;
 933         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 934         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 935                "latency: %d, mmio: 0x%llx\n", dev->name,
 936                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 937                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 938         pci_set_master(pci_dev);
 939         if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
 940                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 941                 err = -EIO;
 942                 goto fail1;
 943         }
 944
 945         /* board config */
 946         dev->board = pci_id->driver_data;
 947         if (card[dev->nr] >= 0 &&
 948             card[dev->nr] < saa7134_bcount)
 949                 dev->board = card[dev->nr];
 950         if (SAA7134_BOARD_UNKNOWN == dev->board)
 951                 must_configure_manually(0);
 952         else if (SAA7134_BOARD_NOAUTO == dev->board) {
 953                 must_configure_manually(1);
 954                 dev->board = SAA7134_BOARD_UNKNOWN;
 955         }
 956         dev->autodetected = card[dev->nr] != dev->board;
 957         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 958         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 959         dev->radio_type = saa7134_boards[dev->board].radio_type;
 960         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 961         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 962         if (UNSET != tuner[dev->nr])
 963                 dev->tuner_type = tuner[dev->nr];
 964         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 965                 dev->name,pci_dev->subsystem_vendor,
 966                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 967                 dev->board, dev->autodetected ?
 968                 "autodetected" : "insmod option");
 969
 970         /* get mmio */
 971         if (!request_mem_region(pci_resource_start(pci_dev,0),
 972                                 pci_resource_len(pci_dev,0),
 973                                 dev->name)) {
 974                 err = -EBUSY;
 975                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 976                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 977                 goto fail1;
 978         }
 979         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 980                              pci_resource_len(pci_dev, 0));
 981         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 982         if (NULL == dev->lmmio) {
 983                 err = -EIO;
 984                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 985                        dev->name);
 986                 goto fail2;
 987         }
 988
 989         /* initialize hardware #1 */
 990         saa7134_board_init1(dev);
 991         saa7134_hwinit1(dev);
 992
 993         /* get irq */
 994         err = request_irq(pci_dev->irq, saa7134_irq,
 995                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 996         if (err < 0) {
 997                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 998                        dev->name,pci_dev->irq);
 999                 goto fail3;
1000         }
1001
1002         /* wait a bit, register i2c bus */
1003         msleep(100);
1004         saa7134_i2c_register(dev);
1005         saa7134_board_init2(dev);
1006
1007         saa7134_hwinit2(dev);
1008
1009         /* load i2c helpers */
1010         if (card_is_empress(dev)) {
1011                 struct v4l2_subdev *sd =
1012                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1013                                 "saa6752hs",
1014                                 saa7134_boards[dev->board].empress_addr, NULL);
1015
1016                 if (sd)
1017                         sd->grp_id = GRP_EMPRESS;
1018         }
1019
1020         if (saa7134_boards[dev->board].rds_addr) {
1021                 struct v4l2_subdev *sd;
1022
1023                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1024                                 &dev->i2c_adap, "saa6588",
1025                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1026                 if (sd) {
1027                         printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1028                         dev->has_rds = 1;
1029                 }
1030         }
1031
1032         v4l2_prio_init(&dev->prio);
1033
1034         mutex_lock(&saa7134_devlist_lock);
1035         list_for_each_entry(mops, &mops_list, next)
1036                 mpeg_ops_attach(mops, dev);
1037         list_add_tail(&dev->devlist, &saa7134_devlist);
1038         mutex_unlock(&saa7134_devlist_lock);
1039
1040         /* check for signal */
1041         saa7134_irq_video_signalchange(dev);
1042
1043         if (TUNER_ABSENT != dev->tuner_type)
1044                 saa_call_all(dev, core, s_power, 0);
1045
1046         /* register v4l devices */
1047         if (saa7134_no_overlay > 0)
1048                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1049
1050         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1051         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1052                                     video_nr[dev->nr]);
1053         if (err < 0) {
1054                 printk(KERN_INFO "%s: can't register video device\n",
1055                        dev->name);
1056                 goto fail4;
1057         }
1058         printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1059                dev->name, video_device_node_name(dev->video_dev));
1060
1061         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1062
1063         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1064                                     vbi_nr[dev->nr]);
1065         if (err < 0)
1066                 goto fail4;
1067         printk(KERN_INFO "%s: registered device %s\n",
1068                dev->name, video_device_node_name(dev->vbi_dev));
1069
1070         if (card_has_radio(dev)) {
1071                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1072                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1073                                             radio_nr[dev->nr]);
1074                 if (err < 0)
1075                         goto fail4;
1076                 printk(KERN_INFO "%s: registered device %s\n",
1077                        dev->name, video_device_node_name(dev->radio_dev));
1078         }
1079
1080         /* everything worked */
1081         saa7134_devcount++;
1082
1083         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1084                 saa7134_dmasound_init(dev);
1085
1086         request_submodules(dev);
1087         return 0;
1088
1089  fail4:
1090         saa7134_unregister_video(dev);
1091         saa7134_i2c_unregister(dev);
1092         free_irq(pci_dev->irq, dev);
1093  fail3:
1094         saa7134_hwfini(dev);
1095         iounmap(dev->lmmio);
1096  fail2:
1097         release_mem_region(pci_resource_start(pci_dev,0),
1098                            pci_resource_len(pci_dev,0));
1099  fail1:
1100         v4l2_device_unregister(&dev->v4l2_dev);
1101  fail0:
1102         kfree(dev);
1103         return err;
1104 }
1105
1106 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1107 {
1108         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1109         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1110         struct saa7134_mpeg_ops *mops;
1111
1112         flush_request_submodules(dev);
1113
1114         /* Release DMA sound modules if present */
1115         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1116                 saa7134_dmasound_exit(dev);
1117         }
1118
1119         /* debugging ... */
1120         if (irq_debug) {
1121                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1122                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1123                 print_irqstatus(dev,42,report,status);
1124         }
1125
1126         /* disable peripheral devices */
1127         saa_writeb(SAA7134_SPECIAL_MODE,0);
1128
1129         /* shutdown hardware */
1130         saa_writel(SAA7134_IRQ1,0);
1131         saa_writel(SAA7134_IRQ2,0);
1132         saa_writel(SAA7134_MAIN_CTRL,0);
1133
1134         /* shutdown subsystems */
1135         saa7134_hwfini(dev);
1136
1137         /* unregister */
1138         mutex_lock(&saa7134_devlist_lock);
1139         list_del(&dev->devlist);
1140         list_for_each_entry(mops, &mops_list, next)
1141                 mpeg_ops_detach(mops, dev);
1142         mutex_unlock(&saa7134_devlist_lock);
1143         saa7134_devcount--;
1144
1145         saa7134_i2c_unregister(dev);
1146         saa7134_unregister_video(dev);
1147
1148
1149         /* the DMA sound modules should be unloaded before reaching
1150            this, but just in case they are still present... */
1151         if (dev->dmasound.priv_data != NULL) {
1152                 free_irq(pci_dev->irq, &dev->dmasound);
1153                 dev->dmasound.priv_data = NULL;
1154         }
1155
1156
1157         /* release resources */
1158         free_irq(pci_dev->irq, dev);
1159         iounmap(dev->lmmio);
1160         release_mem_region(pci_resource_start(pci_dev,0),
1161                            pci_resource_len(pci_dev,0));
1162
1163
1164         v4l2_device_unregister(&dev->v4l2_dev);
1165
1166         /* free memory */
1167         kfree(dev);
1168 }
1169
1170 #ifdef CONFIG_PM
1171
1172 /* resends a current buffer in queue after resume */
1173 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1174                                   struct saa7134_dmaqueue *q)
1175 {
1176         struct saa7134_buf *buf, *next;
1177
1178         assert_spin_locked(&dev->slock);
1179
1180         buf  = q->curr;
1181         next = buf;
1182         dprintk("buffer_requeue\n");
1183
1184         if (!buf)
1185                 return 0;
1186
1187         dprintk("buffer_requeue : resending active buffers \n");
1188
1189         if (!list_empty(&q->queue))
1190                 next = list_entry(q->queue.next, struct saa7134_buf,
1191                                           vb.queue);
1192         buf->activate(dev, buf, next);
1193
1194         return 0;
1195 }
1196
1197 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1198 {
1199         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1200         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1201
1202         /* disable overlay - apps should enable it explicitly on resume*/
1203         dev->ovenable = 0;
1204
1205         /* Disable interrupts, DMA, and rest of the chip*/
1206         saa_writel(SAA7134_IRQ1, 0);
1207         saa_writel(SAA7134_IRQ2, 0);
1208         saa_writel(SAA7134_MAIN_CTRL, 0);
1209
1210         dev->insuspend = 1;
1211         synchronize_irq(pci_dev->irq);
1212
1213         /* ACK interrupts once more, just in case,
1214                 since the IRQ handler won't ack them anymore*/
1215
1216         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1217
1218         /* Disable timeout timers - if we have active buffers, we will
1219            fill them on resume*/
1220
1221         del_timer(&dev->video_q.timeout);
1222         del_timer(&dev->vbi_q.timeout);
1223         del_timer(&dev->ts_q.timeout);
1224
1225         if (dev->remote)
1226                 saa7134_ir_stop(dev);
1227
1228         pci_save_state(pci_dev);
1229         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1230
1231         return 0;
1232 }
1233
1234 static int saa7134_resume(struct pci_dev *pci_dev)
1235 {
1236         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1237         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1238         unsigned long flags;
1239
1240         pci_set_power_state(pci_dev, PCI_D0);
1241         pci_restore_state(pci_dev);
1242
1243         /* Do things that are done in saa7134_initdev ,
1244                 except of initializing memory structures.*/
1245
1246         saa7134_board_init1(dev);
1247
1248         /* saa7134_hwinit1 */
1249         if (saa7134_boards[dev->board].video_out)
1250                 saa7134_videoport_init(dev);
1251         if (card_has_mpeg(dev))
1252                 saa7134_ts_init_hw(dev);
1253         if (dev->remote)
1254                 saa7134_ir_start(dev);
1255         saa7134_hw_enable1(dev);
1256
1257         msleep(100);
1258
1259         saa7134_board_init2(dev);
1260
1261         /*saa7134_hwinit2*/
1262         saa7134_set_tvnorm_hw(dev);
1263         saa7134_tvaudio_setmute(dev);
1264         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1265         saa7134_tvaudio_init(dev);
1266         saa7134_tvaudio_do_scan(dev);
1267         saa7134_enable_i2s(dev);
1268         saa7134_hw_enable2(dev);
1269
1270         saa7134_irq_video_signalchange(dev);
1271
1272         /*resume unfinished buffer(s)*/
1273         spin_lock_irqsave(&dev->slock, flags);
1274         saa7134_buffer_requeue(dev, &dev->video_q);
1275         saa7134_buffer_requeue(dev, &dev->vbi_q);
1276         saa7134_buffer_requeue(dev, &dev->ts_q);
1277
1278         /* FIXME: Disable DMA audio sound - temporary till proper support
1279                   is implemented*/
1280
1281         dev->dmasound.dma_running = 0;
1282
1283         /* start DMA now*/
1284         dev->insuspend = 0;
1285         smp_wmb();
1286         saa7134_set_dmabits(dev);
1287         spin_unlock_irqrestore(&dev->slock, flags);
1288
1289         return 0;
1290 }
1291 #endif
1292
1293 /* ----------------------------------------------------------- */
1294
1295 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1296 {
1297         struct saa7134_dev *dev;
1298
1299         mutex_lock(&saa7134_devlist_lock);
1300         list_for_each_entry(dev, &saa7134_devlist, devlist)
1301                 mpeg_ops_attach(ops, dev);
1302         list_add_tail(&ops->next,&mops_list);
1303         mutex_unlock(&saa7134_devlist_lock);
1304         return 0;
1305 }
1306
1307 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1308 {
1309         struct saa7134_dev *dev;
1310
1311         mutex_lock(&saa7134_devlist_lock);
1312         list_del(&ops->next);
1313         list_for_each_entry(dev, &saa7134_devlist, devlist)
1314                 mpeg_ops_detach(ops, dev);
1315         mutex_unlock(&saa7134_devlist_lock);
1316 }
1317
1318 EXPORT_SYMBOL(saa7134_ts_register);
1319 EXPORT_SYMBOL(saa7134_ts_unregister);
1320
1321 /* ----------------------------------------------------------- */
1322
1323 static struct pci_driver saa7134_pci_driver = {
1324         .name     = "saa7134",
1325         .id_table = saa7134_pci_tbl,
1326         .probe    = saa7134_initdev,
1327         .remove   = __devexit_p(saa7134_finidev),
1328 #ifdef CONFIG_PM
1329         .suspend  = saa7134_suspend,
1330         .resume   = saa7134_resume
1331 #endif
1332 };
1333
1334 static int __init saa7134_init(void)
1335 {
1336         INIT_LIST_HEAD(&saa7134_devlist);
1337         printk(KERN_INFO "saa7130/34: v4l2 driver version %s loaded\n",
1338                SAA7134_VERSION);
1339         return pci_register_driver(&saa7134_pci_driver);
1340 }
1341
1342 static void __exit saa7134_fini(void)
1343 {
1344         pci_unregister_driver(&saa7134_pci_driver);
1345 }
1346
1347 module_init(saa7134_init);
1348 module_exit(saa7134_fini);
1349
1350 /* ----------------------------------------------------------- */
1351
1352 EXPORT_SYMBOL(saa7134_set_gpio);
1353 EXPORT_SYMBOL(saa7134_boards);
1354
1355 /* ----------------- for the DMA sound modules --------------- */
1356
1357 EXPORT_SYMBOL(saa7134_dmasound_init);
1358 EXPORT_SYMBOL(saa7134_dmasound_exit);
1359 EXPORT_SYMBOL(saa7134_pgtable_free);
1360 EXPORT_SYMBOL(saa7134_pgtable_build);
1361 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1362 EXPORT_SYMBOL(saa7134_set_dmabits);
1363
1364 /* ----------------------------------------------------------- */
1365 /*
1366  * Local variables:
1367  * c-basic-offset: 8
1368  * End:
1369  */