SAFE public projects git trees. - safe/jmp/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 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                 request_module("saa7134-alsa");
 161         if (oss)
 162                 request_module("saa7134-oss");
 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 #else
 172 #define request_submodules(dev)
 173 #endif /* CONFIG_MODULES */
 174
 175 /* ------------------------------------------------------------------ */
 176
 177 /* nr of (saa7134-)pages for the given buffer size */
 178 static int saa7134_buffer_pages(int size)
 179 {
 180         size  = PAGE_ALIGN(size);
 181         size += PAGE_SIZE; /* for non-page-aligned buffers */
 182         size /= 4096;
 183         return size;
 184 }
 185
 186 /* calc max # of buffers from size (must not exceed the 4MB virtual
 187  * address space per DMA channel) */
 188 int saa7134_buffer_count(unsigned int size, unsigned int count)
 189 {
 190         unsigned int maxcount;
 191
 192         maxcount = 1024 / saa7134_buffer_pages(size);
 193         if (count > maxcount)
 194                 count = maxcount;
 195         return count;
 196 }
 197
 198 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 199 {
 200         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 201 }
 202
 203 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 204 {
 205         unsigned long base;
 206         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 207
 208         base  = saa7134_buffer_startpage(buf) * 4096;
 209         base += dma->sglist[0].offset;
 210         return base;
 211 }
 212
 213 /* ------------------------------------------------------------------ */
 214
 215 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 216 {
 217         __le32       *cpu;
 218         dma_addr_t   dma_addr = 0;
 219
 220         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 221         if (NULL == cpu)
 222                 return -ENOMEM;
 223         pt->size = SAA7134_PGTABLE_SIZE;
 224         pt->cpu  = cpu;
 225         pt->dma  = dma_addr;
 226         return 0;
 227 }
 228
 229 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 230                           struct scatterlist *list, unsigned int length,
 231                           unsigned int startpage)
 232 {
 233         __le32        *ptr;
 234         unsigned int  i,p;
 235
 236         BUG_ON(NULL == pt || NULL == pt->cpu);
 237
 238         ptr = pt->cpu + startpage;
 239         for (i = 0; i < length; i++, list++)
 240                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 241                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 242         return 0;
 243 }
 244
 245 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 246 {
 247         if (NULL == pt->cpu)
 248                 return;
 249         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 250         pt->cpu = NULL;
 251 }
 252
 253 /* ------------------------------------------------------------------ */
 254
 255 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 256 {
 257         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 258         BUG_ON(in_interrupt());
 259
 260         videobuf_waiton(&buf->vb,0,0);
 261         videobuf_dma_unmap(q, dma);
 262         videobuf_dma_free(dma);
 263         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 264 }
 265
 266 /* ------------------------------------------------------------------ */
 267
 268 int saa7134_buffer_queue(struct saa7134_dev *dev,
 269                          struct saa7134_dmaqueue *q,
 270                          struct saa7134_buf *buf)
 271 {
 272         struct saa7134_buf *next = NULL;
 273
 274         assert_spin_locked(&dev->slock);
 275         dprintk("buffer_queue %p\n",buf);
 276         if (NULL == q->curr) {
 277                 if (!q->need_two) {
 278                         q->curr = buf;
 279                         buf->activate(dev,buf,NULL);
 280                 } else if (list_empty(&q->queue)) {
 281                         list_add_tail(&buf->vb.queue,&q->queue);
 282                         buf->vb.state = VIDEOBUF_QUEUED;
 283                 } else {
 284                         next = list_entry(q->queue.next,struct saa7134_buf,
 285                                           vb.queue);
 286                         q->curr = buf;
 287                         buf->activate(dev,buf,next);
 288                 }
 289         } else {
 290                 list_add_tail(&buf->vb.queue,&q->queue);
 291                 buf->vb.state = VIDEOBUF_QUEUED;
 292         }
 293         return 0;
 294 }
 295
 296 void saa7134_buffer_finish(struct saa7134_dev *dev,
 297                            struct saa7134_dmaqueue *q,
 298                            unsigned int state)
 299 {
 300         assert_spin_locked(&dev->slock);
 301         dprintk("buffer_finish %p\n",q->curr);
 302
 303         /* finish current buffer */
 304         q->curr->vb.state = state;
 305         do_gettimeofday(&q->curr->vb.ts);
 306         wake_up(&q->curr->vb.done);
 307         q->curr = NULL;
 308 }
 309
 310 void saa7134_buffer_next(struct saa7134_dev *dev,
 311                          struct saa7134_dmaqueue *q)
 312 {
 313         struct saa7134_buf *buf,*next = NULL;
 314
 315         assert_spin_locked(&dev->slock);
 316         BUG_ON(NULL != q->curr);
 317
 318         if (!list_empty(&q->queue)) {
 319                 /* activate next one from queue */
 320                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 321                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 322                         buf,q->queue.prev,q->queue.next);
 323                 list_del(&buf->vb.queue);
 324                 if (!list_empty(&q->queue))
 325                         next = list_entry(q->queue.next,struct saa7134_buf,
 326                                           vb.queue);
 327                 q->curr = buf;
 328                 buf->activate(dev,buf,next);
 329                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 330                         q->queue.prev,q->queue.next);
 331         } else {
 332                 /* nothing to do -- just stop DMA */
 333                 dprintk("buffer_next %p\n",NULL);
 334                 saa7134_set_dmabits(dev);
 335                 del_timer(&q->timeout);
 336         }
 337 }
 338
 339 void saa7134_buffer_timeout(unsigned long data)
 340 {
 341         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 342         struct saa7134_dev *dev = q->dev;
 343         unsigned long flags;
 344
 345         spin_lock_irqsave(&dev->slock,flags);
 346
 347         /* try to reset the hardware (SWRST) */
 348         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 349         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 350         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 351
 352         /* flag current buffer as failed,
 353            try to start over with the next one. */
 354         if (q->curr) {
 355                 dprintk("timeout on %p\n",q->curr);
 356                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 357         }
 358         saa7134_buffer_next(dev,q);
 359         spin_unlock_irqrestore(&dev->slock,flags);
 360 }
 361
 362 /* ------------------------------------------------------------------ */
 363
 364 int saa7134_set_dmabits(struct saa7134_dev *dev)
 365 {
 366         u32 split, task=0, ctrl=0, irq=0;
 367         enum v4l2_field cap = V4L2_FIELD_ANY;
 368         enum v4l2_field ov  = V4L2_FIELD_ANY;
 369
 370         assert_spin_locked(&dev->slock);
 371
 372         if (dev->insuspend)
 373                 return 0;
 374
 375         /* video capture -- dma 0 + video task A */
 376         if (dev->video_q.curr) {
 377                 task |= 0x01;
 378                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 379                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 380                         SAA7134_IRQ1_INTE_RA0_0;
 381                 cap = dev->video_q.curr->vb.field;
 382         }
 383
 384         /* video capture -- dma 1+2 (planar modes) */
 385         if (dev->video_q.curr &&
 386             dev->video_q.curr->fmt->planar) {
 387                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 388                         SAA7134_MAIN_CTRL_TE5;
 389         }
 390
 391         /* screen overlay -- dma 0 + video task B */
 392         if (dev->ovenable) {
 393                 task |= 0x10;
 394                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 395                 ov = dev->ovfield;
 396         }
 397
 398         /* vbi capture -- dma 0 + vbi task A+B */
 399         if (dev->vbi_q.curr) {
 400                 task |= 0x22;
 401                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 402                         SAA7134_MAIN_CTRL_TE3;
 403                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 404                         SAA7134_IRQ1_INTE_RA0_6 |
 405                         SAA7134_IRQ1_INTE_RA0_5 |
 406                         SAA7134_IRQ1_INTE_RA0_4;
 407         }
 408
 409         /* audio capture -- dma 3 */
 410         if (dev->dmasound.dma_running) {
 411                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 412                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 413                         SAA7134_IRQ1_INTE_RA3_0;
 414         }
 415
 416         /* TS capture -- dma 5 */
 417         if (dev->ts_q.curr) {
 418                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 419                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 420                         SAA7134_IRQ1_INTE_RA2_0;
 421         }
 422
 423         /* set task conditions + field handling */
 424         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 425                 /* default config -- use full frames */
 426                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 427                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 428                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 429                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 430                 split = 0;
 431         } else {
 432                 /* split fields between tasks */
 433                 if (V4L2_FIELD_TOP == cap) {
 434                         /* odd A, even B, repeat */
 435                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 436                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 437                 } else {
 438                         /* odd B, even A, repeat */
 439                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 440                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 441                 }
 442                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 443                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 444                 split = 1;
 445         }
 446
 447         /* irqs */
 448         saa_writeb(SAA7134_REGION_ENABLE, task);
 449         saa_writel(SAA7134_IRQ1,          irq);
 450         saa_andorl(SAA7134_MAIN_CTRL,
 451                    SAA7134_MAIN_CTRL_TE0 |
 452                    SAA7134_MAIN_CTRL_TE1 |
 453                    SAA7134_MAIN_CTRL_TE2 |
 454                    SAA7134_MAIN_CTRL_TE3 |
 455                    SAA7134_MAIN_CTRL_TE4 |
 456                    SAA7134_MAIN_CTRL_TE5 |
 457                    SAA7134_MAIN_CTRL_TE6,
 458                    ctrl);
 459         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 460                 task, ctrl, irq, split ? "no" : "yes");
 461
 462         return 0;
 463 }
 464
 465 /* ------------------------------------------------------------------ */
 466 /* IRQ handler + helpers                                              */
 467
 468 static char *irqbits[] = {
 469         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 470         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 471         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 472         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 473 };
 474 #define IRQBITS ARRAY_SIZE(irqbits)
 475
 476 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 477                             unsigned long report, unsigned long status)
 478 {
 479         unsigned int i;
 480
 481         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 482                dev->name,loop,jiffies,report,status);
 483         for (i = 0; i < IRQBITS; i++) {
 484                 if (!(report & (1 << i)))
 485                         continue;
 486                 printk(" %s",irqbits[i]);
 487         }
 488         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 489                 printk(" | RA0=%s,%s,%s,%ld",
 490                        (status & 0x40) ? "vbi"  : "video",
 491                        (status & 0x20) ? "b"    : "a",
 492                        (status & 0x10) ? "odd"  : "even",
 493                        (status & 0x0f));
 494         }
 495         printk("\n");
 496 }
 497
 498 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 499 {
 500         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 501         unsigned long report,status;
 502         int loop, handled = 0;
 503
 504         if (dev->insuspend)
 505                 goto out;
 506
 507         for (loop = 0; loop < 10; loop++) {
 508                 report = saa_readl(SAA7134_IRQ_REPORT);
 509                 status = saa_readl(SAA7134_IRQ_STATUS);
 510
 511                 /* If dmasound support is active and we get a sound report,
 512                  * mask out the report and let the saa7134-alsa module deal
 513                  * with it */
 514                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 515                         (dev->dmasound.priv_data != NULL) )
 516                 {
 517                         if (irq_debug > 1)
 518                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 519                                        dev->name);
 520                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 521                 }
 522
 523                 if (0 == report) {
 524                         if (irq_debug > 1)
 525                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 526                                        dev->name);
 527                         goto out;
 528                 }
 529
 530                 handled = 1;
 531                 saa_writel(SAA7134_IRQ_REPORT,report);
 532                 if (irq_debug)
 533                         print_irqstatus(dev,loop,report,status);
 534
 535
 536                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 537                         (report & SAA7134_IRQ_REPORT_INTL))
 538                                 saa7134_irq_video_signalchange(dev);
 539
 540
 541                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 542                     (status & 0x60) == 0)
 543                         saa7134_irq_video_done(dev,status);
 544
 545                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 546                     (status & 0x40) == 0x40)
 547                         saa7134_irq_vbi_done(dev,status);
 548
 549                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 550                     card_has_mpeg(dev))
 551                         saa7134_irq_ts_done(dev,status);
 552
 553                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 554                         switch (dev->has_remote) {
 555                                 case SAA7134_REMOTE_GPIO:
 556                                         if (!dev->remote)
 557                                                 break;
 558                                         if  (dev->remote->mask_keydown & 0x10000) {
 559                                                 saa7134_input_irq(dev);
 560                                         }
 561                                         break;
 562
 563                                 case SAA7134_REMOTE_I2C:
 564                                         break;                  /* FIXME: invoke I2C get_key() */
 565
 566                                 default:                        /* GPIO16 not used by IR remote */
 567                                         break;
 568                         }
 569                 }
 570
 571                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 572                         switch (dev->has_remote) {
 573                                 case SAA7134_REMOTE_GPIO:
 574                                         if (!dev->remote)
 575                                                 break;
 576                                         if ((dev->remote->mask_keydown & 0x40000) ||
 577                                             (dev->remote->mask_keyup & 0x40000)) {
 578                                                 saa7134_input_irq(dev);
 579                                         }
 580                                         break;
 581
 582                                 case SAA7134_REMOTE_I2C:
 583                                         break;                  /* FIXME: invoke I2C get_key() */
 584
 585                                 default:                        /* GPIO18 not used by IR remote */
 586                                         break;
 587                         }
 588                 }
 589         }
 590
 591         if (10 == loop) {
 592                 print_irqstatus(dev,loop,report,status);
 593                 if (report & SAA7134_IRQ_REPORT_PE) {
 594                         /* disable all parity error */
 595                         printk(KERN_WARNING "%s/irq: looping -- "
 596                                "clearing PE (parity error!) enable bit\n",dev->name);
 597                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 598                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 599                         /* disable gpio16 IRQ */
 600                         printk(KERN_WARNING "%s/irq: looping -- "
 601                                "clearing GPIO16 enable bit\n",dev->name);
 602                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 603                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 604                         /* disable gpio18 IRQs */
 605                         printk(KERN_WARNING "%s/irq: looping -- "
 606                                "clearing GPIO18 enable bit\n",dev->name);
 607                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 608                 } else {
 609                         /* disable all irqs */
 610                         printk(KERN_WARNING "%s/irq: looping -- "
 611                                "clearing all enable bits\n",dev->name);
 612                         saa_writel(SAA7134_IRQ1,0);
 613                         saa_writel(SAA7134_IRQ2,0);
 614                 }
 615         }
 616
 617  out:
 618         return IRQ_RETVAL(handled);
 619 }
 620
 621 /* ------------------------------------------------------------------ */
 622
 623 /* early init (no i2c, no irq) */
 624
 625 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 626 {
 627         /* RAM FIFO config */
 628         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 629         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 630
 631         /* enable audio + video processing */
 632         saa_writel(SAA7134_MAIN_CTRL,
 633                         SAA7134_MAIN_CTRL_VPLLE |
 634                         SAA7134_MAIN_CTRL_APLLE |
 635                         SAA7134_MAIN_CTRL_EXOSC |
 636                         SAA7134_MAIN_CTRL_EVFE1 |
 637                         SAA7134_MAIN_CTRL_EVFE2 |
 638                         SAA7134_MAIN_CTRL_ESFE  |
 639                         SAA7134_MAIN_CTRL_EBDAC);
 640
 641         /*
 642         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 643         * OSS initialization writes to registers via the audio DSP; these
 644         * writes will fail unless the audio clock has been started.  At worst,
 645         * audio will not work.
 646         */
 647
 648         /* enable peripheral devices */
 649         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 650
 651         /* set vertical line numbering start (vbi needs this) */
 652         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 653
 654         return 0;
 655 }
 656
 657 static int saa7134_hwinit1(struct saa7134_dev *dev)
 658 {
 659         dprintk("hwinit1\n");
 660
 661         saa_writel(SAA7134_IRQ1, 0);
 662         saa_writel(SAA7134_IRQ2, 0);
 663
 664         /* Clear any stale IRQ reports */
 665         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 666
 667         mutex_init(&dev->lock);
 668         spin_lock_init(&dev->slock);
 669
 670         saa7134_track_gpio(dev,"pre-init");
 671         saa7134_video_init1(dev);
 672         saa7134_vbi_init1(dev);
 673         if (card_has_mpeg(dev))
 674                 saa7134_ts_init1(dev);
 675         saa7134_input_init1(dev);
 676
 677         saa7134_hw_enable1(dev);
 678
 679         return 0;
 680 }
 681
 682 /* late init (with i2c + irq) */
 683 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 684 {
 685
 686         unsigned int irq2_mask;
 687
 688         /* enable IRQ's */
 689         irq2_mask =
 690                 SAA7134_IRQ2_INTE_DEC3    |
 691                 SAA7134_IRQ2_INTE_DEC2    |
 692                 SAA7134_IRQ2_INTE_DEC1    |
 693                 SAA7134_IRQ2_INTE_DEC0    |
 694                 SAA7134_IRQ2_INTE_PE      |
 695                 SAA7134_IRQ2_INTE_AR;
 696
 697         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 698                 if (dev->remote->mask_keydown & 0x10000)
 699                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 700                 else if (dev->remote->mask_keydown & 0x40000)
 701                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 702                 else if (dev->remote->mask_keyup & 0x40000)
 703                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 704         }
 705
 706         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 707                 request_module("ir-kbd-i2c");
 708         }
 709
 710         saa_writel(SAA7134_IRQ1, 0);
 711         saa_writel(SAA7134_IRQ2, irq2_mask);
 712
 713         return 0;
 714 }
 715
 716 static int saa7134_hwinit2(struct saa7134_dev *dev)
 717 {
 718
 719         dprintk("hwinit2\n");
 720
 721         saa7134_video_init2(dev);
 722         saa7134_tvaudio_init2(dev);
 723
 724         saa7134_hw_enable2(dev);
 725
 726         return 0;
 727 }
 728
 729
 730 /* shutdown */
 731 static int saa7134_hwfini(struct saa7134_dev *dev)
 732 {
 733         dprintk("hwfini\n");
 734
 735         if (card_has_mpeg(dev))
 736                 saa7134_ts_fini(dev);
 737         saa7134_input_fini(dev);
 738         saa7134_vbi_fini(dev);
 739         saa7134_tvaudio_fini(dev);
 740         return 0;
 741 }
 742
 743 static void __devinit must_configure_manually(void)
 744 {
 745         unsigned int i,p;
 746
 747         printk(KERN_WARNING
 748                "saa7134: <rant>\n"
 749                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 750                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 751                "saa7134:  subsystem ID and I can't identify it automatically\n"
 752                "saa7134: </rant>\n"
 753                "saa7134: I feel better now.  Ok, here are the good news:\n"
 754                "saa7134: You can use the card=<nr> insmod option to specify\n"
 755                "saa7134: which board do you have.  The list:\n");
 756         for (i = 0; i < saa7134_bcount; i++) {
 757                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 758                        i,saa7134_boards[i].name);
 759                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 760                         if (saa7134_pci_tbl[p].driver_data != i)
 761                                 continue;
 762                         printk(" %04x:%04x",
 763                                saa7134_pci_tbl[p].subvendor,
 764                                saa7134_pci_tbl[p].subdevice);
 765                 }
 766                 printk("\n");
 767         }
 768 }
 769
 770 static struct video_device *vdev_init(struct saa7134_dev *dev,
 771                                       struct video_device *template,
 772                                       char *type)
 773 {
 774         struct video_device *vfd;
 775
 776         vfd = video_device_alloc();
 777         if (NULL == vfd)
 778                 return NULL;
 779         *vfd = *template;
 780         vfd->minor   = -1;
 781         vfd->parent  = &dev->pci->dev;
 782         vfd->release = video_device_release;
 783         vfd->debug   = video_debug;
 784         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 785                  dev->name, type, saa7134_boards[dev->board].name);
 786         return vfd;
 787 }
 788
 789 static void saa7134_unregister_video(struct saa7134_dev *dev)
 790 {
 791         if (dev->video_dev) {
 792                 if (-1 != dev->video_dev->minor)
 793                         video_unregister_device(dev->video_dev);
 794                 else
 795                         video_device_release(dev->video_dev);
 796                 dev->video_dev = NULL;
 797         }
 798         if (dev->vbi_dev) {
 799                 if (-1 != dev->vbi_dev->minor)
 800                         video_unregister_device(dev->vbi_dev);
 801                 else
 802                         video_device_release(dev->vbi_dev);
 803                 dev->vbi_dev = NULL;
 804         }
 805         if (dev->radio_dev) {
 806                 if (-1 != dev->radio_dev->minor)
 807                         video_unregister_device(dev->radio_dev);
 808                 else
 809                         video_device_release(dev->radio_dev);
 810                 dev->radio_dev = NULL;
 811         }
 812 }
 813
 814 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 815                             struct saa7134_dev *dev)
 816 {
 817         int err;
 818
 819         if (NULL != dev->mops)
 820                 return;
 821         if (saa7134_boards[dev->board].mpeg != ops->type)
 822                 return;
 823         err = ops->init(dev);
 824         if (0 != err)
 825                 return;
 826         dev->mops = ops;
 827 }
 828
 829 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 830                             struct saa7134_dev *dev)
 831 {
 832         if (NULL == dev->mops)
 833                 return;
 834         if (dev->mops != ops)
 835                 return;
 836         dev->mops->fini(dev);
 837         dev->mops = NULL;
 838 }
 839
 840 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 841                                      const struct pci_device_id *pci_id)
 842 {
 843         struct saa7134_dev *dev;
 844         struct saa7134_mpeg_ops *mops;
 845         int err;
 846
 847         if (saa7134_devcount == SAA7134_MAXBOARDS)
 848                 return -ENOMEM;
 849
 850         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 851         if (NULL == dev)
 852                 return -ENOMEM;
 853
 854         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 855         if (err)
 856                 goto fail0;
 857
 858         /* pci init */
 859         dev->pci = pci_dev;
 860         if (pci_enable_device(pci_dev)) {
 861                 err = -EIO;
 862                 goto fail1;
 863         }
 864
 865         dev->nr = saa7134_devcount;
 866         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 867
 868         /* pci quirks */
 869         if (pci_pci_problems) {
 870                 if (pci_pci_problems & PCIPCI_TRITON)
 871                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 872                 if (pci_pci_problems & PCIPCI_NATOMA)
 873                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 874                 if (pci_pci_problems & PCIPCI_VIAETBF)
 875                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 876                 if (pci_pci_problems & PCIPCI_VSFX)
 877                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 878 #ifdef PCIPCI_ALIMAGIK
 879                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 880                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 881                                dev->name);
 882                         latency = 0x0A;
 883                 }
 884 #endif
 885                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 886                         printk(KERN_INFO "%s: quirk: this driver and your "
 887                                         "chipset may not work together"
 888                                         " in overlay mode.\n",dev->name);
 889                         if (!saa7134_no_overlay) {
 890                                 printk(KERN_INFO "%s: quirk: overlay "
 891                                                 "mode will be disabled.\n",
 892                                                 dev->name);
 893                                 saa7134_no_overlay = 1;
 894                         } else {
 895                                 printk(KERN_INFO "%s: quirk: overlay "
 896                                                 "mode will be forced. Use this"
 897                                                 " option at your own risk.\n",
 898                                                 dev->name);
 899                         }
 900                 }
 901         }
 902         if (UNSET != latency) {
 903                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 904                        dev->name,latency);
 905                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 906         }
 907
 908         /* print pci info */
 909         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 910         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 911         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 912                "latency: %d, mmio: 0x%llx\n", dev->name,
 913                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 914                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 915         pci_set_master(pci_dev);
 916         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 917                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 918                 err = -EIO;
 919                 goto fail1;
 920         }
 921
 922         /* board config */
 923         dev->board = pci_id->driver_data;
 924         if (card[dev->nr] >= 0 &&
 925             card[dev->nr] < saa7134_bcount)
 926                 dev->board = card[dev->nr];
 927         if (SAA7134_BOARD_NOAUTO == dev->board) {
 928                 must_configure_manually();
 929                 dev->board = SAA7134_BOARD_UNKNOWN;
 930         }
 931         dev->autodetected = card[dev->nr] != dev->board;
 932         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 933         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 934         dev->radio_type = saa7134_boards[dev->board].radio_type;
 935         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 936         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 937         if (UNSET != tuner[dev->nr])
 938                 dev->tuner_type = tuner[dev->nr];
 939         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 940                 dev->name,pci_dev->subsystem_vendor,
 941                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 942                 dev->board, dev->autodetected ?
 943                 "autodetected" : "insmod option");
 944
 945         /* get mmio */
 946         if (!request_mem_region(pci_resource_start(pci_dev,0),
 947                                 pci_resource_len(pci_dev,0),
 948                                 dev->name)) {
 949                 err = -EBUSY;
 950                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 951                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 952                 goto fail1;
 953         }
 954         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 955                              pci_resource_len(pci_dev, 0));
 956         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 957         if (NULL == dev->lmmio) {
 958                 err = -EIO;
 959                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 960                        dev->name);
 961                 goto fail2;
 962         }
 963
 964         /* initialize hardware #1 */
 965         saa7134_board_init1(dev);
 966         saa7134_hwinit1(dev);
 967
 968         /* get irq */
 969         err = request_irq(pci_dev->irq, saa7134_irq,
 970                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 971         if (err < 0) {
 972                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 973                        dev->name,pci_dev->irq);
 974                 goto fail3;
 975         }
 976
 977         /* wait a bit, register i2c bus */
 978         msleep(100);
 979         saa7134_i2c_register(dev);
 980
 981         /* initialize hardware #2 */
 982         if (TUNER_ABSENT != dev->tuner_type) {
 983                 int has_demod = (dev->tda9887_conf & TDA9887_PRESENT);
 984
 985                 /* Note: radio tuner address is always filled in,
 986                    so we do not need to probe for a radio tuner device. */
 987                 if (dev->radio_type != UNSET)
 988                         v4l2_i2c_new_subdev(&dev->i2c_adap,
 989                                 "tuner", "tuner", dev->radio_addr);
 990                 if (has_demod)
 991                         v4l2_i2c_new_probed_subdev(&dev->i2c_adap, "tuner",
 992                                 "tuner", v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
 993                 if (dev->tuner_addr == ADDR_UNSET) {
 994                         enum v4l2_i2c_tuner_type type =
 995                                 has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
 996
 997                         v4l2_i2c_new_probed_subdev(&dev->i2c_adap, "tuner",
 998                                 "tuner", v4l2_i2c_tuner_addrs(type));
 999                 } else {
1000                         v4l2_i2c_new_subdev(&dev->i2c_adap,
1001                                 "tuner", "tuner", dev->tuner_addr);
1002                 }
1003         }
1004         saa7134_board_init2(dev);
1005
1006         saa7134_hwinit2(dev);
1007
1008         /* load i2c helpers */
1009         if (card_is_empress(dev)) {
1010                 struct v4l2_subdev *sd =
1011                         v4l2_i2c_new_subdev(&dev->i2c_adap, "saa6752hs",
1012                                 "saa6752hs", 0x20);
1013
1014                 if (sd)
1015                         sd->grp_id = GRP_EMPRESS;
1016         }
1017
1018         request_submodules(dev);
1019
1020         v4l2_prio_init(&dev->prio);
1021
1022         /* register v4l devices */
1023         if (saa7134_no_overlay > 0)
1024                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1025
1026         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1027         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1028                                     video_nr[dev->nr]);
1029         if (err < 0) {
1030                 printk(KERN_INFO "%s: can't register video device\n",
1031                        dev->name);
1032                 goto fail4;
1033         }
1034         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
1035                dev->name, dev->video_dev->num);
1036
1037         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1038
1039         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1040                                     vbi_nr[dev->nr]);
1041         if (err < 0)
1042                 goto fail4;
1043         printk(KERN_INFO "%s: registered device vbi%d\n",
1044                dev->name, dev->vbi_dev->num);
1045
1046         if (card_has_radio(dev)) {
1047                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1048                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1049                                             radio_nr[dev->nr]);
1050                 if (err < 0)
1051                         goto fail4;
1052                 printk(KERN_INFO "%s: registered device radio%d\n",
1053                        dev->name, dev->radio_dev->num);
1054         }
1055
1056         /* everything worked */
1057         saa7134_devcount++;
1058
1059         mutex_lock(&devlist_lock);
1060         list_for_each_entry(mops, &mops_list, next)
1061                 mpeg_ops_attach(mops, dev);
1062         list_add_tail(&dev->devlist,&saa7134_devlist);
1063         mutex_unlock(&devlist_lock);
1064
1065         /* check for signal */
1066         saa7134_irq_video_signalchange(dev);
1067
1068         if (saa7134_dmasound_init && !dev->dmasound.priv_data) {
1069                 saa7134_dmasound_init(dev);
1070         }
1071
1072         if (TUNER_ABSENT != dev->tuner_type)
1073                 saa_call_all(dev, core, s_standby, 0);
1074
1075         return 0;
1076
1077  fail4:
1078         saa7134_unregister_video(dev);
1079         saa7134_i2c_unregister(dev);
1080         free_irq(pci_dev->irq, dev);
1081  fail3:
1082         saa7134_hwfini(dev);
1083         iounmap(dev->lmmio);
1084  fail2:
1085         release_mem_region(pci_resource_start(pci_dev,0),
1086                            pci_resource_len(pci_dev,0));
1087  fail1:
1088         v4l2_device_unregister(&dev->v4l2_dev);
1089  fail0:
1090         kfree(dev);
1091         return err;
1092 }
1093
1094 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1095 {
1096         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1097         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1098         struct saa7134_mpeg_ops *mops;
1099
1100         /* Release DMA sound modules if present */
1101         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1102                 saa7134_dmasound_exit(dev);
1103         }
1104
1105         /* debugging ... */
1106         if (irq_debug) {
1107                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1108                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1109                 print_irqstatus(dev,42,report,status);
1110         }
1111
1112         /* disable peripheral devices */
1113         saa_writeb(SAA7134_SPECIAL_MODE,0);
1114
1115         /* shutdown hardware */
1116         saa_writel(SAA7134_IRQ1,0);
1117         saa_writel(SAA7134_IRQ2,0);
1118         saa_writel(SAA7134_MAIN_CTRL,0);
1119
1120         /* shutdown subsystems */
1121         saa7134_hwfini(dev);
1122
1123         /* unregister */
1124         mutex_lock(&devlist_lock);
1125         list_del(&dev->devlist);
1126         list_for_each_entry(mops, &mops_list, next)
1127                 mpeg_ops_detach(mops, dev);
1128         mutex_unlock(&devlist_lock);
1129         saa7134_devcount--;
1130
1131         saa7134_i2c_unregister(dev);
1132         saa7134_unregister_video(dev);
1133
1134
1135         /* the DMA sound modules should be unloaded before reaching
1136            this, but just in case they are still present... */
1137         if (dev->dmasound.priv_data != NULL) {
1138                 free_irq(pci_dev->irq, &dev->dmasound);
1139                 dev->dmasound.priv_data = NULL;
1140         }
1141
1142
1143         /* release resources */
1144         free_irq(pci_dev->irq, dev);
1145         iounmap(dev->lmmio);
1146         release_mem_region(pci_resource_start(pci_dev,0),
1147                            pci_resource_len(pci_dev,0));
1148
1149
1150         v4l2_device_unregister(&dev->v4l2_dev);
1151
1152         /* free memory */
1153         kfree(dev);
1154 }
1155
1156 #ifdef CONFIG_PM
1157
1158 /* resends a current buffer in queue after resume */
1159 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1160                                   struct saa7134_dmaqueue *q)
1161 {
1162         struct saa7134_buf *buf, *next;
1163
1164         assert_spin_locked(&dev->slock);
1165
1166         buf  = q->curr;
1167         next = buf;
1168         dprintk("buffer_requeue\n");
1169
1170         if (!buf)
1171                 return 0;
1172
1173         dprintk("buffer_requeue : resending active buffers \n");
1174
1175         if (!list_empty(&q->queue))
1176                 next = list_entry(q->queue.next, struct saa7134_buf,
1177                                           vb.queue);
1178         buf->activate(dev, buf, next);
1179
1180         return 0;
1181 }
1182
1183 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1184 {
1185         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1186         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1187
1188         /* disable overlay - apps should enable it explicitly on resume*/
1189         dev->ovenable = 0;
1190
1191         /* Disable interrupts, DMA, and rest of the chip*/
1192         saa_writel(SAA7134_IRQ1, 0);
1193         saa_writel(SAA7134_IRQ2, 0);
1194         saa_writel(SAA7134_MAIN_CTRL, 0);
1195
1196         dev->insuspend = 1;
1197         synchronize_irq(pci_dev->irq);
1198
1199         /* ACK interrupts once more, just in case,
1200                 since the IRQ handler won't ack them anymore*/
1201
1202         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1203
1204         /* Disable timeout timers - if we have active buffers, we will
1205            fill them on resume*/
1206
1207         del_timer(&dev->video_q.timeout);
1208         del_timer(&dev->vbi_q.timeout);
1209         del_timer(&dev->ts_q.timeout);
1210
1211         if (dev->remote)
1212                 saa7134_ir_stop(dev);
1213
1214         pci_save_state(pci_dev);
1215         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1216
1217         return 0;
1218 }
1219
1220 static int saa7134_resume(struct pci_dev *pci_dev)
1221 {
1222         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1223         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1224         unsigned long flags;
1225
1226         pci_set_power_state(pci_dev, PCI_D0);
1227         pci_restore_state(pci_dev);
1228
1229         /* Do things that are done in saa7134_initdev ,
1230                 except of initializing memory structures.*/
1231
1232         saa7134_board_init1(dev);
1233
1234         /* saa7134_hwinit1 */
1235         if (saa7134_boards[dev->board].video_out)
1236                 saa7134_videoport_init(dev);
1237         if (card_has_mpeg(dev))
1238                 saa7134_ts_init_hw(dev);
1239         if (dev->remote)
1240                 saa7134_ir_start(dev, dev->remote);
1241         saa7134_hw_enable1(dev);
1242
1243         msleep(100);
1244
1245         saa7134_board_init2(dev);
1246
1247         /*saa7134_hwinit2*/
1248         saa7134_set_tvnorm_hw(dev);
1249         saa7134_tvaudio_setmute(dev);
1250         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1251         saa7134_tvaudio_init(dev);
1252         saa7134_tvaudio_do_scan(dev);
1253         saa7134_enable_i2s(dev);
1254         saa7134_hw_enable2(dev);
1255
1256         saa7134_irq_video_signalchange(dev);
1257
1258         /*resume unfinished buffer(s)*/
1259         spin_lock_irqsave(&dev->slock, flags);
1260         saa7134_buffer_requeue(dev, &dev->video_q);
1261         saa7134_buffer_requeue(dev, &dev->vbi_q);
1262         saa7134_buffer_requeue(dev, &dev->ts_q);
1263
1264         /* FIXME: Disable DMA audio sound - temporary till proper support
1265                   is implemented*/
1266
1267         dev->dmasound.dma_running = 0;
1268
1269         /* start DMA now*/
1270         dev->insuspend = 0;
1271         smp_wmb();
1272         saa7134_set_dmabits(dev);
1273         spin_unlock_irqrestore(&dev->slock, flags);
1274
1275         return 0;
1276 }
1277 #endif
1278
1279 /* ----------------------------------------------------------- */
1280
1281 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1282 {
1283         struct saa7134_dev *dev;
1284
1285         mutex_lock(&devlist_lock);
1286         list_for_each_entry(dev, &saa7134_devlist, devlist)
1287                 mpeg_ops_attach(ops, dev);
1288         list_add_tail(&ops->next,&mops_list);
1289         mutex_unlock(&devlist_lock);
1290         return 0;
1291 }
1292
1293 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1294 {
1295         struct saa7134_dev *dev;
1296
1297         mutex_lock(&devlist_lock);
1298         list_del(&ops->next);
1299         list_for_each_entry(dev, &saa7134_devlist, devlist)
1300                 mpeg_ops_detach(ops, dev);
1301         mutex_unlock(&devlist_lock);
1302 }
1303
1304 EXPORT_SYMBOL(saa7134_ts_register);
1305 EXPORT_SYMBOL(saa7134_ts_unregister);
1306
1307 /* ----------------------------------------------------------- */
1308
1309 static struct pci_driver saa7134_pci_driver = {
1310         .name     = "saa7134",
1311         .id_table = saa7134_pci_tbl,
1312         .probe    = saa7134_initdev,
1313         .remove   = __devexit_p(saa7134_finidev),
1314 #ifdef CONFIG_PM
1315         .suspend  = saa7134_suspend,
1316         .resume   = saa7134_resume
1317 #endif
1318 };
1319
1320 static int saa7134_init(void)
1321 {
1322         INIT_LIST_HEAD(&saa7134_devlist);
1323         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1324                (SAA7134_VERSION_CODE >> 16) & 0xff,
1325                (SAA7134_VERSION_CODE >>  8) & 0xff,
1326                SAA7134_VERSION_CODE & 0xff);
1327 #ifdef SNAPSHOT
1328         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1329                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1330 #endif
1331         return pci_register_driver(&saa7134_pci_driver);
1332 }
1333
1334 static void saa7134_fini(void)
1335 {
1336         pci_unregister_driver(&saa7134_pci_driver);
1337 }
1338
1339 module_init(saa7134_init);
1340 module_exit(saa7134_fini);
1341
1342 /* ----------------------------------------------------------- */
1343
1344 EXPORT_SYMBOL(saa7134_set_gpio);
1345 EXPORT_SYMBOL(saa7134_devlist);
1346 EXPORT_SYMBOL(saa7134_boards);
1347
1348 /* ----------------- for the DMA sound modules --------------- */
1349
1350 EXPORT_SYMBOL(saa7134_dmasound_init);
1351 EXPORT_SYMBOL(saa7134_dmasound_exit);
1352 EXPORT_SYMBOL(saa7134_pgtable_free);
1353 EXPORT_SYMBOL(saa7134_pgtable_build);
1354 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1355 EXPORT_SYMBOL(saa7134_set_dmabits);
1356
1357 /* ----------------------------------------------------------- */
1358 /*
1359  * Local variables:
1360  * c-basic-offset: 8
1361  * End:
1362  */