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

   1 /*
   2  *
   3  * device driver for philips saa7134 based TV cards
   4  * driver core
   5  *
   6  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include <linux/init.h>
  24 #include <linux/list.h>
  25 #include <linux/module.h>
  26 #include <linux/kernel.h>
  27 #include <linux/slab.h>
  28 #include <linux/kmod.h>
  29 #include <linux/sound.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/delay.h>
  32 #include <linux/mutex.h>
  33 #include <linux/dma-mapping.h>
  34 #include <linux/pm.h>
  35
  36 #include "saa7134-reg.h"
  37 #include "saa7134.h"
  38
  39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  41 MODULE_LICENSE("GPL");
  42
  43 /* ------------------------------------------------------------------ */
  44
  45 static unsigned int irq_debug;
  46 module_param(irq_debug, int, 0644);
  47 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  48
  49 static unsigned int core_debug;
  50 module_param(core_debug, int, 0644);
  51 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  52
  53 static unsigned int gpio_tracking;
  54 module_param(gpio_tracking, int, 0644);
  55 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  56
  57 static unsigned int alsa = 1;
  58 module_param(alsa, int, 0644);
  59 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  60
  61 static unsigned int latency = UNSET;
  62 module_param(latency, int, 0444);
  63 MODULE_PARM_DESC(latency,"pci latency timer");
  64
  65 int saa7134_no_overlay=-1;
  66 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  67 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  68                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  69
  70 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  71 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  72 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  73 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  74 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75
  76
  77 module_param_array(video_nr, int, NULL, 0444);
  78 module_param_array(vbi_nr,   int, NULL, 0444);
  79 module_param_array(radio_nr, int, NULL, 0444);
  80 module_param_array(tuner,    int, NULL, 0444);
  81 module_param_array(card,     int, NULL, 0444);
  82
  83 MODULE_PARM_DESC(video_nr, "video device number");
  84 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  85 MODULE_PARM_DESC(radio_nr, "radio device number");
  86 MODULE_PARM_DESC(tuner,    "tuner type");
  87 MODULE_PARM_DESC(card,     "card type");
  88
  89 DEFINE_MUTEX(saa7134_devlist_lock);
  90 EXPORT_SYMBOL(saa7134_devlist_lock);
  91 LIST_HEAD(saa7134_devlist);
  92 EXPORT_SYMBOL(saa7134_devlist);
  93 static LIST_HEAD(mops_list);
  94 static unsigned int saa7134_devcount;
  95
  96 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  97 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  98
  99 #define dprintk(fmt, arg...)    if (core_debug) \
 100         printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
 101
 102 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 103 {
 104         unsigned long mode,status;
 105
 106         if (!gpio_tracking)
 107                 return;
 108         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 109         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 110         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 111         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 112         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 113         printk(KERN_DEBUG
 114                "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 115                dev->name, mode, (~mode) & status, mode & status, msg);
 116 }
 117
 118 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 119 {
 120         u32 index, bitval;
 121
 122         index = 1 << bit_no;
 123         switch (value) {
 124         case 0: /* static value */
 125         case 1: dprintk("setting GPIO%d to static %d\n", bit_no, value);
 126                 /* turn sync mode off if necessary */
 127                 if (index & 0x00c00000)
 128                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 129                 if (value)
 130                         bitval = index;
 131                 else
 132                         bitval = 0;
 133                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 134                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 135                 break;
 136         case 3: /* tristate */
 137                 dprintk("setting GPIO%d to tristate\n", bit_no);
 138                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 139                 break;
 140         }
 141 }
 142
 143 /* ------------------------------------------------------------------ */
 144
 145
 146 /* ----------------------------------------------------------- */
 147 /* delayed request_module                                      */
 148
 149 #if defined(CONFIG_MODULES) && defined(MODULE)
 150
 151 static void request_module_async(struct work_struct *work){
 152         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 153         if (card_is_empress(dev))
 154                 request_module("saa7134-empress");
 155         if (card_is_dvb(dev))
 156                 request_module("saa7134-dvb");
 157         if (alsa) {
 158                 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 159                         request_module("saa7134-alsa");
 160         }
 161 }
 162
 163 static void request_submodules(struct saa7134_dev *dev)
 164 {
 165         INIT_WORK(&dev->request_module_wk, request_module_async);
 166         schedule_work(&dev->request_module_wk);
 167 }
 168
 169 #else
 170 #define request_submodules(dev)
 171 #endif /* CONFIG_MODULES */
 172
 173 /* ------------------------------------------------------------------ */
 174
 175 /* nr of (saa7134-)pages for the given buffer size */
 176 static int saa7134_buffer_pages(int size)
 177 {
 178         size  = PAGE_ALIGN(size);
 179         size += PAGE_SIZE; /* for non-page-aligned buffers */
 180         size /= 4096;
 181         return size;
 182 }
 183
 184 /* calc max # of buffers from size (must not exceed the 4MB virtual
 185  * address space per DMA channel) */
 186 int saa7134_buffer_count(unsigned int size, unsigned int count)
 187 {
 188         unsigned int maxcount;
 189
 190         maxcount = 1024 / saa7134_buffer_pages(size);
 191         if (count > maxcount)
 192                 count = maxcount;
 193         return count;
 194 }
 195
 196 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 197 {
 198         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 199 }
 200
 201 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 202 {
 203         unsigned long base;
 204         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 205
 206         base  = saa7134_buffer_startpage(buf) * 4096;
 207         base += dma->sglist[0].offset;
 208         return base;
 209 }
 210
 211 /* ------------------------------------------------------------------ */
 212
 213 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 214 {
 215         __le32       *cpu;
 216         dma_addr_t   dma_addr = 0;
 217
 218         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 219         if (NULL == cpu)
 220                 return -ENOMEM;
 221         pt->size = SAA7134_PGTABLE_SIZE;
 222         pt->cpu  = cpu;
 223         pt->dma  = dma_addr;
 224         return 0;
 225 }
 226
 227 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 228                           struct scatterlist *list, unsigned int length,
 229                           unsigned int startpage)
 230 {
 231         __le32        *ptr;
 232         unsigned int  i,p;
 233
 234         BUG_ON(NULL == pt || NULL == pt->cpu);
 235
 236         ptr = pt->cpu + startpage;
 237         for (i = 0; i < length; i++, list++)
 238                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 239                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 240         return 0;
 241 }
 242
 243 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 244 {
 245         if (NULL == pt->cpu)
 246                 return;
 247         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 248         pt->cpu = NULL;
 249 }
 250
 251 /* ------------------------------------------------------------------ */
 252
 253 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 254 {
 255         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 256         BUG_ON(in_interrupt());
 257
 258         videobuf_waiton(&buf->vb,0,0);
 259         videobuf_dma_unmap(q, dma);
 260         videobuf_dma_free(dma);
 261         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 262 }
 263
 264 /* ------------------------------------------------------------------ */
 265
 266 int saa7134_buffer_queue(struct saa7134_dev *dev,
 267                          struct saa7134_dmaqueue *q,
 268                          struct saa7134_buf *buf)
 269 {
 270         struct saa7134_buf *next = NULL;
 271
 272         assert_spin_locked(&dev->slock);
 273         dprintk("buffer_queue %p\n",buf);
 274         if (NULL == q->curr) {
 275                 if (!q->need_two) {
 276                         q->curr = buf;
 277                         buf->activate(dev,buf,NULL);
 278                 } else if (list_empty(&q->queue)) {
 279                         list_add_tail(&buf->vb.queue,&q->queue);
 280                         buf->vb.state = VIDEOBUF_QUEUED;
 281                 } else {
 282                         next = list_entry(q->queue.next,struct saa7134_buf,
 283                                           vb.queue);
 284                         q->curr = buf;
 285                         buf->activate(dev,buf,next);
 286                 }
 287         } else {
 288                 list_add_tail(&buf->vb.queue,&q->queue);
 289                 buf->vb.state = VIDEOBUF_QUEUED;
 290         }
 291         return 0;
 292 }
 293
 294 void saa7134_buffer_finish(struct saa7134_dev *dev,
 295                            struct saa7134_dmaqueue *q,
 296                            unsigned int state)
 297 {
 298         assert_spin_locked(&dev->slock);
 299         dprintk("buffer_finish %p\n",q->curr);
 300
 301         /* finish current buffer */
 302         q->curr->vb.state = state;
 303         do_gettimeofday(&q->curr->vb.ts);
 304         wake_up(&q->curr->vb.done);
 305         q->curr = NULL;
 306 }
 307
 308 void saa7134_buffer_next(struct saa7134_dev *dev,
 309                          struct saa7134_dmaqueue *q)
 310 {
 311         struct saa7134_buf *buf,*next = NULL;
 312
 313         assert_spin_locked(&dev->slock);
 314         BUG_ON(NULL != q->curr);
 315
 316         if (!list_empty(&q->queue)) {
 317                 /* activate next one from queue */
 318                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 319                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 320                         buf,q->queue.prev,q->queue.next);
 321                 list_del(&buf->vb.queue);
 322                 if (!list_empty(&q->queue))
 323                         next = list_entry(q->queue.next,struct saa7134_buf,
 324                                           vb.queue);
 325                 q->curr = buf;
 326                 buf->activate(dev,buf,next);
 327                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 328                         q->queue.prev,q->queue.next);
 329         } else {
 330                 /* nothing to do -- just stop DMA */
 331                 dprintk("buffer_next %p\n",NULL);
 332                 saa7134_set_dmabits(dev);
 333                 del_timer(&q->timeout);
 334         }
 335 }
 336
 337 void saa7134_buffer_timeout(unsigned long data)
 338 {
 339         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 340         struct saa7134_dev *dev = q->dev;
 341         unsigned long flags;
 342
 343         spin_lock_irqsave(&dev->slock,flags);
 344
 345         /* try to reset the hardware (SWRST) */
 346         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 347         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 348         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 349
 350         /* flag current buffer as failed,
 351            try to start over with the next one. */
 352         if (q->curr) {
 353                 dprintk("timeout on %p\n",q->curr);
 354                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 355         }
 356         saa7134_buffer_next(dev,q);
 357         spin_unlock_irqrestore(&dev->slock,flags);
 358 }
 359
 360 /* ------------------------------------------------------------------ */
 361
 362 int saa7134_set_dmabits(struct saa7134_dev *dev)
 363 {
 364         u32 split, task=0, ctrl=0, irq=0;
 365         enum v4l2_field cap = V4L2_FIELD_ANY;
 366         enum v4l2_field ov  = V4L2_FIELD_ANY;
 367
 368         assert_spin_locked(&dev->slock);
 369
 370         if (dev->insuspend)
 371                 return 0;
 372
 373         /* video capture -- dma 0 + video task A */
 374         if (dev->video_q.curr) {
 375                 task |= 0x01;
 376                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 377                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 378                         SAA7134_IRQ1_INTE_RA0_0;
 379                 cap = dev->video_q.curr->vb.field;
 380         }
 381
 382         /* video capture -- dma 1+2 (planar modes) */
 383         if (dev->video_q.curr &&
 384             dev->video_q.curr->fmt->planar) {
 385                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 386                         SAA7134_MAIN_CTRL_TE5;
 387         }
 388
 389         /* screen overlay -- dma 0 + video task B */
 390         if (dev->ovenable) {
 391                 task |= 0x10;
 392                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 393                 ov = dev->ovfield;
 394         }
 395
 396         /* vbi capture -- dma 0 + vbi task A+B */
 397         if (dev->vbi_q.curr) {
 398                 task |= 0x22;
 399                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 400                         SAA7134_MAIN_CTRL_TE3;
 401                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 402                         SAA7134_IRQ1_INTE_RA0_6 |
 403                         SAA7134_IRQ1_INTE_RA0_5 |
 404                         SAA7134_IRQ1_INTE_RA0_4;
 405         }
 406
 407         /* audio capture -- dma 3 */
 408         if (dev->dmasound.dma_running) {
 409                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 410                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 411                         SAA7134_IRQ1_INTE_RA3_0;
 412         }
 413
 414         /* TS capture -- dma 5 */
 415         if (dev->ts_q.curr) {
 416                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 417                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 418                         SAA7134_IRQ1_INTE_RA2_0;
 419         }
 420
 421         /* set task conditions + field handling */
 422         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 423                 /* default config -- use full frames */
 424                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 425                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 426                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 427                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 428                 split = 0;
 429         } else {
 430                 /* split fields between tasks */
 431                 if (V4L2_FIELD_TOP == cap) {
 432                         /* odd A, even B, repeat */
 433                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 434                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 435                 } else {
 436                         /* odd B, even A, repeat */
 437                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 438                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 439                 }
 440                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 441                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 442                 split = 1;
 443         }
 444
 445         /* irqs */
 446         saa_writeb(SAA7134_REGION_ENABLE, task);
 447         saa_writel(SAA7134_IRQ1,          irq);
 448         saa_andorl(SAA7134_MAIN_CTRL,
 449                    SAA7134_MAIN_CTRL_TE0 |
 450                    SAA7134_MAIN_CTRL_TE1 |
 451                    SAA7134_MAIN_CTRL_TE2 |
 452                    SAA7134_MAIN_CTRL_TE3 |
 453                    SAA7134_MAIN_CTRL_TE4 |
 454                    SAA7134_MAIN_CTRL_TE5 |
 455                    SAA7134_MAIN_CTRL_TE6,
 456                    ctrl);
 457         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 458                 task, ctrl, irq, split ? "no" : "yes");
 459
 460         return 0;
 461 }
 462
 463 /* ------------------------------------------------------------------ */
 464 /* IRQ handler + helpers                                              */
 465
 466 static char *irqbits[] = {
 467         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 468         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 469         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 470         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 471 };
 472 #define IRQBITS ARRAY_SIZE(irqbits)
 473
 474 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 475                             unsigned long report, unsigned long status)
 476 {
 477         unsigned int i;
 478
 479         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 480                dev->name,loop,jiffies,report,status);
 481         for (i = 0; i < IRQBITS; i++) {
 482                 if (!(report & (1 << i)))
 483                         continue;
 484                 printk(" %s",irqbits[i]);
 485         }
 486         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 487                 printk(" | RA0=%s,%s,%s,%ld",
 488                        (status & 0x40) ? "vbi"  : "video",
 489                        (status & 0x20) ? "b"    : "a",
 490                        (status & 0x10) ? "odd"  : "even",
 491                        (status & 0x0f));
 492         }
 493         printk("\n");
 494 }
 495
 496 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 497 {
 498         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 499         unsigned long report,status;
 500         int loop, handled = 0;
 501
 502         if (dev->insuspend)
 503                 goto out;
 504
 505         for (loop = 0; loop < 10; loop++) {
 506                 report = saa_readl(SAA7134_IRQ_REPORT);
 507                 status = saa_readl(SAA7134_IRQ_STATUS);
 508
 509                 /* If dmasound support is active and we get a sound report,
 510                  * mask out the report and let the saa7134-alsa module deal
 511                  * with it */
 512                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 513                         (dev->dmasound.priv_data != NULL) )
 514                 {
 515                         if (irq_debug > 1)
 516                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 517                                        dev->name);
 518                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 519                 }
 520
 521                 if (0 == report) {
 522                         if (irq_debug > 1)
 523                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 524                                        dev->name);
 525                         goto out;
 526                 }
 527
 528                 handled = 1;
 529                 saa_writel(SAA7134_IRQ_REPORT,report);
 530                 if (irq_debug)
 531                         print_irqstatus(dev,loop,report,status);
 532
 533
 534                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 535                         (report & SAA7134_IRQ_REPORT_INTL))
 536                                 saa7134_irq_video_signalchange(dev);
 537
 538
 539                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 540                     (status & 0x60) == 0)
 541                         saa7134_irq_video_done(dev,status);
 542
 543                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 544                     (status & 0x40) == 0x40)
 545                         saa7134_irq_vbi_done(dev,status);
 546
 547                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 548                     card_has_mpeg(dev))
 549                         saa7134_irq_ts_done(dev,status);
 550
 551                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 552                         switch (dev->has_remote) {
 553                                 case SAA7134_REMOTE_GPIO:
 554                                         if (!dev->remote)
 555                                                 break;
 556                                         if  (dev->remote->mask_keydown & 0x10000) {
 557                                                 saa7134_input_irq(dev);
 558                                         }
 559                                         break;
 560
 561                                 case SAA7134_REMOTE_I2C:
 562                                         break;                  /* FIXME: invoke I2C get_key() */
 563
 564                                 default:                        /* GPIO16 not used by IR remote */
 565                                         break;
 566                         }
 567                 }
 568
 569                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 570                         switch (dev->has_remote) {
 571                                 case SAA7134_REMOTE_GPIO:
 572                                         if (!dev->remote)
 573                                                 break;
 574                                         if ((dev->remote->mask_keydown & 0x40000) ||
 575                                             (dev->remote->mask_keyup & 0x40000)) {
 576                                                 saa7134_input_irq(dev);
 577                                         }
 578                                         break;
 579
 580                                 case SAA7134_REMOTE_I2C:
 581                                         break;                  /* FIXME: invoke I2C get_key() */
 582
 583                                 default:                        /* GPIO18 not used by IR remote */
 584                                         break;
 585                         }
 586                 }
 587         }
 588
 589         if (10 == loop) {
 590                 print_irqstatus(dev,loop,report,status);
 591                 if (report & SAA7134_IRQ_REPORT_PE) {
 592                         /* disable all parity error */
 593                         printk(KERN_WARNING "%s/irq: looping -- "
 594                                "clearing PE (parity error!) enable bit\n",dev->name);
 595                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 596                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 597                         /* disable gpio16 IRQ */
 598                         printk(KERN_WARNING "%s/irq: looping -- "
 599                                "clearing GPIO16 enable bit\n",dev->name);
 600                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 601                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 602                         /* disable gpio18 IRQs */
 603                         printk(KERN_WARNING "%s/irq: looping -- "
 604                                "clearing GPIO18 enable bit\n",dev->name);
 605                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 606                 } else {
 607                         /* disable all irqs */
 608                         printk(KERN_WARNING "%s/irq: looping -- "
 609                                "clearing all enable bits\n",dev->name);
 610                         saa_writel(SAA7134_IRQ1,0);
 611                         saa_writel(SAA7134_IRQ2,0);
 612                 }
 613         }
 614
 615  out:
 616         return IRQ_RETVAL(handled);
 617 }
 618
 619 /* ------------------------------------------------------------------ */
 620
 621 /* early init (no i2c, no irq) */
 622
 623 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 624 {
 625         /* RAM FIFO config */
 626         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 627         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 628
 629         /* enable audio + video processing */
 630         saa_writel(SAA7134_MAIN_CTRL,
 631                         SAA7134_MAIN_CTRL_VPLLE |
 632                         SAA7134_MAIN_CTRL_APLLE |
 633                         SAA7134_MAIN_CTRL_EXOSC |
 634                         SAA7134_MAIN_CTRL_EVFE1 |
 635                         SAA7134_MAIN_CTRL_EVFE2 |
 636                         SAA7134_MAIN_CTRL_ESFE  |
 637                         SAA7134_MAIN_CTRL_EBDAC);
 638
 639         /*
 640         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 641         * OSS initialization writes to registers via the audio DSP; these
 642         * writes will fail unless the audio clock has been started.  At worst,
 643         * audio will not work.
 644         */
 645
 646         /* enable peripheral devices */
 647         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 648
 649         /* set vertical line numbering start (vbi needs this) */
 650         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 651
 652         return 0;
 653 }
 654
 655 static int saa7134_hwinit1(struct saa7134_dev *dev)
 656 {
 657         dprintk("hwinit1\n");
 658
 659         saa_writel(SAA7134_IRQ1, 0);
 660         saa_writel(SAA7134_IRQ2, 0);
 661
 662         /* Clear any stale IRQ reports */
 663         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 664
 665         mutex_init(&dev->lock);
 666         spin_lock_init(&dev->slock);
 667
 668         saa7134_track_gpio(dev,"pre-init");
 669         saa7134_video_init1(dev);
 670         saa7134_vbi_init1(dev);
 671         if (card_has_mpeg(dev))
 672                 saa7134_ts_init1(dev);
 673         saa7134_input_init1(dev);
 674
 675         saa7134_hw_enable1(dev);
 676
 677         return 0;
 678 }
 679
 680 /* late init (with i2c + irq) */
 681 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 682 {
 683
 684         unsigned int irq2_mask;
 685
 686         /* enable IRQ's */
 687         irq2_mask =
 688                 SAA7134_IRQ2_INTE_DEC3    |
 689                 SAA7134_IRQ2_INTE_DEC2    |
 690                 SAA7134_IRQ2_INTE_DEC1    |
 691                 SAA7134_IRQ2_INTE_DEC0    |
 692                 SAA7134_IRQ2_INTE_PE      |
 693                 SAA7134_IRQ2_INTE_AR;
 694
 695         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 696                 if (dev->remote->mask_keydown & 0x10000)
 697                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 698                 else if (dev->remote->mask_keydown & 0x40000)
 699                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 700                 else if (dev->remote->mask_keyup & 0x40000)
 701                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 702         }
 703
 704         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 705                 request_module("ir-kbd-i2c");
 706         }
 707
 708         saa_writel(SAA7134_IRQ1, 0);
 709         saa_writel(SAA7134_IRQ2, irq2_mask);
 710
 711         return 0;
 712 }
 713
 714 static int saa7134_hwinit2(struct saa7134_dev *dev)
 715 {
 716
 717         dprintk("hwinit2\n");
 718
 719         saa7134_video_init2(dev);
 720         saa7134_tvaudio_init2(dev);
 721
 722         saa7134_hw_enable2(dev);
 723
 724         return 0;
 725 }
 726
 727
 728 /* shutdown */
 729 static int saa7134_hwfini(struct saa7134_dev *dev)
 730 {
 731         dprintk("hwfini\n");
 732
 733         if (card_has_mpeg(dev))
 734                 saa7134_ts_fini(dev);
 735         saa7134_input_fini(dev);
 736         saa7134_vbi_fini(dev);
 737         saa7134_tvaudio_fini(dev);
 738         return 0;
 739 }
 740
 741 static void __devinit must_configure_manually(void)
 742 {
 743         unsigned int i,p;
 744
 745         printk(KERN_WARNING
 746                "saa7134: <rant>\n"
 747                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 748                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 749                "saa7134:  subsystem ID and I can't identify it automatically\n"
 750                "saa7134: </rant>\n"
 751                "saa7134: I feel better now.  Ok, here are the good news:\n"
 752                "saa7134: You can use the card=<nr> insmod option to specify\n"
 753                "saa7134: which board do you have.  The list:\n");
 754         for (i = 0; i < saa7134_bcount; i++) {
 755                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 756                        i,saa7134_boards[i].name);
 757                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 758                         if (saa7134_pci_tbl[p].driver_data != i)
 759                                 continue;
 760                         printk(" %04x:%04x",
 761                                saa7134_pci_tbl[p].subvendor,
 762                                saa7134_pci_tbl[p].subdevice);
 763                 }
 764                 printk("\n");
 765         }
 766 }
 767
 768 static struct video_device *vdev_init(struct saa7134_dev *dev,
 769                                       struct video_device *template,
 770                                       char *type)
 771 {
 772         struct video_device *vfd;
 773
 774         vfd = video_device_alloc();
 775         if (NULL == vfd)
 776                 return NULL;
 777         *vfd = *template;
 778         vfd->minor   = -1;
 779         vfd->v4l2_dev  = &dev->v4l2_dev;
 780         vfd->release = video_device_release;
 781         vfd->debug   = video_debug;
 782         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 783                  dev->name, type, saa7134_boards[dev->board].name);
 784         return vfd;
 785 }
 786
 787 static void saa7134_unregister_video(struct saa7134_dev *dev)
 788 {
 789         if (dev->video_dev) {
 790                 if (-1 != dev->video_dev->minor)
 791                         video_unregister_device(dev->video_dev);
 792                 else
 793                         video_device_release(dev->video_dev);
 794                 dev->video_dev = NULL;
 795         }
 796         if (dev->vbi_dev) {
 797                 if (-1 != dev->vbi_dev->minor)
 798                         video_unregister_device(dev->vbi_dev);
 799                 else
 800                         video_device_release(dev->vbi_dev);
 801                 dev->vbi_dev = NULL;
 802         }
 803         if (dev->radio_dev) {
 804                 if (-1 != dev->radio_dev->minor)
 805                         video_unregister_device(dev->radio_dev);
 806                 else
 807                         video_device_release(dev->radio_dev);
 808                 dev->radio_dev = NULL;
 809         }
 810 }
 811
 812 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 813                             struct saa7134_dev *dev)
 814 {
 815         int err;
 816
 817         if (NULL != dev->mops)
 818                 return;
 819         if (saa7134_boards[dev->board].mpeg != ops->type)
 820                 return;
 821         err = ops->init(dev);
 822         if (0 != err)
 823                 return;
 824         dev->mops = ops;
 825 }
 826
 827 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 828                             struct saa7134_dev *dev)
 829 {
 830         if (NULL == dev->mops)
 831                 return;
 832         if (dev->mops != ops)
 833                 return;
 834         dev->mops->fini(dev);
 835         dev->mops = NULL;
 836 }
 837
 838 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 839                                      const struct pci_device_id *pci_id)
 840 {
 841         struct saa7134_dev *dev;
 842         struct saa7134_mpeg_ops *mops;
 843         int err;
 844
 845         if (saa7134_devcount == SAA7134_MAXBOARDS)
 846                 return -ENOMEM;
 847
 848         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 849         if (NULL == dev)
 850                 return -ENOMEM;
 851
 852         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 853         if (err)
 854                 goto fail0;
 855
 856         /* pci init */
 857         dev->pci = pci_dev;
 858         if (pci_enable_device(pci_dev)) {
 859                 err = -EIO;
 860                 goto fail1;
 861         }
 862
 863         dev->nr = saa7134_devcount;
 864         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 865
 866         /* pci quirks */
 867         if (pci_pci_problems) {
 868                 if (pci_pci_problems & PCIPCI_TRITON)
 869                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 870                 if (pci_pci_problems & PCIPCI_NATOMA)
 871                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 872                 if (pci_pci_problems & PCIPCI_VIAETBF)
 873                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 874                 if (pci_pci_problems & PCIPCI_VSFX)
 875                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 876 #ifdef PCIPCI_ALIMAGIK
 877                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 878                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 879                                dev->name);
 880                         latency = 0x0A;
 881                 }
 882 #endif
 883                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 884                         printk(KERN_INFO "%s: quirk: this driver and your "
 885                                         "chipset may not work together"
 886                                         " in overlay mode.\n",dev->name);
 887                         if (!saa7134_no_overlay) {
 888                                 printk(KERN_INFO "%s: quirk: overlay "
 889                                                 "mode will be disabled.\n",
 890                                                 dev->name);
 891                                 saa7134_no_overlay = 1;
 892                         } else {
 893                                 printk(KERN_INFO "%s: quirk: overlay "
 894                                                 "mode will be forced. Use this"
 895                                                 " option at your own risk.\n",
 896                                                 dev->name);
 897                         }
 898                 }
 899         }
 900         if (UNSET != latency) {
 901                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 902                        dev->name,latency);
 903                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 904         }
 905
 906         /* print pci info */
 907         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 908         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 909         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 910                "latency: %d, mmio: 0x%llx\n", dev->name,
 911                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 912                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 913         pci_set_master(pci_dev);
 914         if (!pci_dma_supported(pci_dev, DMA_32BIT_MASK)) {
 915                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 916                 err = -EIO;
 917                 goto fail1;
 918         }
 919
 920         /* board config */
 921         dev->board = pci_id->driver_data;
 922         if (card[dev->nr] >= 0 &&
 923             card[dev->nr] < saa7134_bcount)
 924                 dev->board = card[dev->nr];
 925         if (SAA7134_BOARD_NOAUTO == dev->board) {
 926                 must_configure_manually();
 927                 dev->board = SAA7134_BOARD_UNKNOWN;
 928         }
 929         dev->autodetected = card[dev->nr] != dev->board;
 930         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 931         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 932         dev->radio_type = saa7134_boards[dev->board].radio_type;
 933         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 934         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 935         if (UNSET != tuner[dev->nr])
 936                 dev->tuner_type = tuner[dev->nr];
 937         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 938                 dev->name,pci_dev->subsystem_vendor,
 939                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 940                 dev->board, dev->autodetected ?
 941                 "autodetected" : "insmod option");
 942
 943         /* get mmio */
 944         if (!request_mem_region(pci_resource_start(pci_dev,0),
 945                                 pci_resource_len(pci_dev,0),
 946                                 dev->name)) {
 947                 err = -EBUSY;
 948                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 949                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 950                 goto fail1;
 951         }
 952         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 953                              pci_resource_len(pci_dev, 0));
 954         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 955         if (NULL == dev->lmmio) {
 956                 err = -EIO;
 957                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 958                        dev->name);
 959                 goto fail2;
 960         }
 961
 962         /* initialize hardware #1 */
 963         saa7134_board_init1(dev);
 964         saa7134_hwinit1(dev);
 965
 966         /* get irq */
 967         err = request_irq(pci_dev->irq, saa7134_irq,
 968                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 969         if (err < 0) {
 970                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 971                        dev->name,pci_dev->irq);
 972                 goto fail3;
 973         }
 974
 975         /* wait a bit, register i2c bus */
 976         msleep(100);
 977         saa7134_i2c_register(dev);
 978         saa7134_board_init2(dev);
 979
 980         saa7134_hwinit2(dev);
 981
 982         /* load i2c helpers */
 983         if (card_is_empress(dev)) {
 984                 struct v4l2_subdev *sd =
 985                         v4l2_i2c_new_subdev(&dev->i2c_adap,
 986                                 "saa6752hs", "saa6752hs",
 987                                 saa7134_boards[dev->board].empress_addr);
 988
 989                 if (sd)
 990                         sd->grp_id = GRP_EMPRESS;
 991         }
 992
 993         if (saa7134_boards[dev->board].rds_addr) {
 994                 unsigned short addrs[2] = { 0, I2C_CLIENT_END };
 995                 struct v4l2_subdev *sd;
 996
 997                 addrs[0] = saa7134_boards[dev->board].rds_addr;
 998                 sd = v4l2_i2c_new_probed_subdev(&dev->i2c_adap, "saa6588",
 999                             "saa6588", addrs);
1000                 if (sd)
1001                         printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1002         }
1003
1004         request_submodules(dev);
1005
1006         v4l2_prio_init(&dev->prio);
1007
1008         mutex_lock(&saa7134_devlist_lock);
1009         list_for_each_entry(mops, &mops_list, next)
1010                 mpeg_ops_attach(mops, dev);
1011         list_add_tail(&dev->devlist, &saa7134_devlist);
1012         mutex_unlock(&saa7134_devlist_lock);
1013
1014         /* check for signal */
1015         saa7134_irq_video_signalchange(dev);
1016
1017         if (TUNER_ABSENT != dev->tuner_type)
1018                 saa_call_all(dev, core, s_standby, 0);
1019
1020         /* register v4l devices */
1021         if (saa7134_no_overlay > 0)
1022                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1023
1024         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1025         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1026                                     video_nr[dev->nr]);
1027         if (err < 0) {
1028                 printk(KERN_INFO "%s: can't register video device\n",
1029                        dev->name);
1030                 goto fail4;
1031         }
1032         printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
1033                dev->name, dev->video_dev->num);
1034
1035         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1036
1037         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1038                                     vbi_nr[dev->nr]);
1039         if (err < 0)
1040                 goto fail4;
1041         printk(KERN_INFO "%s: registered device vbi%d\n",
1042                dev->name, dev->vbi_dev->num);
1043
1044         if (card_has_radio(dev)) {
1045                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1046                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1047                                             radio_nr[dev->nr]);
1048                 if (err < 0)
1049                         goto fail4;
1050                 printk(KERN_INFO "%s: registered device radio%d\n",
1051                        dev->name, dev->radio_dev->num);
1052         }
1053
1054         /* everything worked */
1055         saa7134_devcount++;
1056
1057         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1058                 saa7134_dmasound_init(dev);
1059
1060         return 0;
1061
1062  fail4:
1063         saa7134_unregister_video(dev);
1064         saa7134_i2c_unregister(dev);
1065         free_irq(pci_dev->irq, dev);
1066  fail3:
1067         saa7134_hwfini(dev);
1068         iounmap(dev->lmmio);
1069  fail2:
1070         release_mem_region(pci_resource_start(pci_dev,0),
1071                            pci_resource_len(pci_dev,0));
1072  fail1:
1073         v4l2_device_unregister(&dev->v4l2_dev);
1074  fail0:
1075         kfree(dev);
1076         return err;
1077 }
1078
1079 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1080 {
1081         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1082         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1083         struct saa7134_mpeg_ops *mops;
1084
1085         /* Release DMA sound modules if present */
1086         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1087                 saa7134_dmasound_exit(dev);
1088         }
1089
1090         /* debugging ... */
1091         if (irq_debug) {
1092                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1093                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1094                 print_irqstatus(dev,42,report,status);
1095         }
1096
1097         /* disable peripheral devices */
1098         saa_writeb(SAA7134_SPECIAL_MODE,0);
1099
1100         /* shutdown hardware */
1101         saa_writel(SAA7134_IRQ1,0);
1102         saa_writel(SAA7134_IRQ2,0);
1103         saa_writel(SAA7134_MAIN_CTRL,0);
1104
1105         /* shutdown subsystems */
1106         saa7134_hwfini(dev);
1107
1108         /* unregister */
1109         mutex_lock(&saa7134_devlist_lock);
1110         list_del(&dev->devlist);
1111         list_for_each_entry(mops, &mops_list, next)
1112                 mpeg_ops_detach(mops, dev);
1113         mutex_unlock(&saa7134_devlist_lock);
1114         saa7134_devcount--;
1115
1116         saa7134_i2c_unregister(dev);
1117         saa7134_unregister_video(dev);
1118
1119
1120         /* the DMA sound modules should be unloaded before reaching
1121            this, but just in case they are still present... */
1122         if (dev->dmasound.priv_data != NULL) {
1123                 free_irq(pci_dev->irq, &dev->dmasound);
1124                 dev->dmasound.priv_data = NULL;
1125         }
1126
1127
1128         /* release resources */
1129         free_irq(pci_dev->irq, dev);
1130         iounmap(dev->lmmio);
1131         release_mem_region(pci_resource_start(pci_dev,0),
1132                            pci_resource_len(pci_dev,0));
1133
1134
1135         v4l2_device_unregister(&dev->v4l2_dev);
1136
1137         /* free memory */
1138         kfree(dev);
1139 }
1140
1141 #ifdef CONFIG_PM
1142
1143 /* resends a current buffer in queue after resume */
1144 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1145                                   struct saa7134_dmaqueue *q)
1146 {
1147         struct saa7134_buf *buf, *next;
1148
1149         assert_spin_locked(&dev->slock);
1150
1151         buf  = q->curr;
1152         next = buf;
1153         dprintk("buffer_requeue\n");
1154
1155         if (!buf)
1156                 return 0;
1157
1158         dprintk("buffer_requeue : resending active buffers \n");
1159
1160         if (!list_empty(&q->queue))
1161                 next = list_entry(q->queue.next, struct saa7134_buf,
1162                                           vb.queue);
1163         buf->activate(dev, buf, next);
1164
1165         return 0;
1166 }
1167
1168 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1169 {
1170         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1171         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1172
1173         /* disable overlay - apps should enable it explicitly on resume*/
1174         dev->ovenable = 0;
1175
1176         /* Disable interrupts, DMA, and rest of the chip*/
1177         saa_writel(SAA7134_IRQ1, 0);
1178         saa_writel(SAA7134_IRQ2, 0);
1179         saa_writel(SAA7134_MAIN_CTRL, 0);
1180
1181         dev->insuspend = 1;
1182         synchronize_irq(pci_dev->irq);
1183
1184         /* ACK interrupts once more, just in case,
1185                 since the IRQ handler won't ack them anymore*/
1186
1187         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1188
1189         /* Disable timeout timers - if we have active buffers, we will
1190            fill them on resume*/
1191
1192         del_timer(&dev->video_q.timeout);
1193         del_timer(&dev->vbi_q.timeout);
1194         del_timer(&dev->ts_q.timeout);
1195
1196         if (dev->remote)
1197                 saa7134_ir_stop(dev);
1198
1199         pci_save_state(pci_dev);
1200         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1201
1202         return 0;
1203 }
1204
1205 static int saa7134_resume(struct pci_dev *pci_dev)
1206 {
1207         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1208         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1209         unsigned long flags;
1210
1211         pci_set_power_state(pci_dev, PCI_D0);
1212         pci_restore_state(pci_dev);
1213
1214         /* Do things that are done in saa7134_initdev ,
1215                 except of initializing memory structures.*/
1216
1217         saa7134_board_init1(dev);
1218
1219         /* saa7134_hwinit1 */
1220         if (saa7134_boards[dev->board].video_out)
1221                 saa7134_videoport_init(dev);
1222         if (card_has_mpeg(dev))
1223                 saa7134_ts_init_hw(dev);
1224         if (dev->remote)
1225                 saa7134_ir_start(dev, dev->remote);
1226         saa7134_hw_enable1(dev);
1227
1228         msleep(100);
1229
1230         saa7134_board_init2(dev);
1231
1232         /*saa7134_hwinit2*/
1233         saa7134_set_tvnorm_hw(dev);
1234         saa7134_tvaudio_setmute(dev);
1235         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1236         saa7134_tvaudio_init(dev);
1237         saa7134_tvaudio_do_scan(dev);
1238         saa7134_enable_i2s(dev);
1239         saa7134_hw_enable2(dev);
1240
1241         saa7134_irq_video_signalchange(dev);
1242
1243         /*resume unfinished buffer(s)*/
1244         spin_lock_irqsave(&dev->slock, flags);
1245         saa7134_buffer_requeue(dev, &dev->video_q);
1246         saa7134_buffer_requeue(dev, &dev->vbi_q);
1247         saa7134_buffer_requeue(dev, &dev->ts_q);
1248
1249         /* FIXME: Disable DMA audio sound - temporary till proper support
1250                   is implemented*/
1251
1252         dev->dmasound.dma_running = 0;
1253
1254         /* start DMA now*/
1255         dev->insuspend = 0;
1256         smp_wmb();
1257         saa7134_set_dmabits(dev);
1258         spin_unlock_irqrestore(&dev->slock, flags);
1259
1260         return 0;
1261 }
1262 #endif
1263
1264 /* ----------------------------------------------------------- */
1265
1266 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1267 {
1268         struct saa7134_dev *dev;
1269
1270         mutex_lock(&saa7134_devlist_lock);
1271         list_for_each_entry(dev, &saa7134_devlist, devlist)
1272                 mpeg_ops_attach(ops, dev);
1273         list_add_tail(&ops->next,&mops_list);
1274         mutex_unlock(&saa7134_devlist_lock);
1275         return 0;
1276 }
1277
1278 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1279 {
1280         struct saa7134_dev *dev;
1281
1282         mutex_lock(&saa7134_devlist_lock);
1283         list_del(&ops->next);
1284         list_for_each_entry(dev, &saa7134_devlist, devlist)
1285                 mpeg_ops_detach(ops, dev);
1286         mutex_unlock(&saa7134_devlist_lock);
1287 }
1288
1289 EXPORT_SYMBOL(saa7134_ts_register);
1290 EXPORT_SYMBOL(saa7134_ts_unregister);
1291
1292 /* ----------------------------------------------------------- */
1293
1294 static struct pci_driver saa7134_pci_driver = {
1295         .name     = "saa7134",
1296         .id_table = saa7134_pci_tbl,
1297         .probe    = saa7134_initdev,
1298         .remove   = __devexit_p(saa7134_finidev),
1299 #ifdef CONFIG_PM
1300         .suspend  = saa7134_suspend,
1301         .resume   = saa7134_resume
1302 #endif
1303 };
1304
1305 static int saa7134_init(void)
1306 {
1307         INIT_LIST_HEAD(&saa7134_devlist);
1308         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1309                (SAA7134_VERSION_CODE >> 16) & 0xff,
1310                (SAA7134_VERSION_CODE >>  8) & 0xff,
1311                SAA7134_VERSION_CODE & 0xff);
1312 #ifdef SNAPSHOT
1313         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1314                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1315 #endif
1316         return pci_register_driver(&saa7134_pci_driver);
1317 }
1318
1319 static void saa7134_fini(void)
1320 {
1321         pci_unregister_driver(&saa7134_pci_driver);
1322 }
1323
1324 module_init(saa7134_init);
1325 module_exit(saa7134_fini);
1326
1327 /* ----------------------------------------------------------- */
1328
1329 EXPORT_SYMBOL(saa7134_set_gpio);
1330 EXPORT_SYMBOL(saa7134_boards);
1331
1332 /* ----------------- for the DMA sound modules --------------- */
1333
1334 EXPORT_SYMBOL(saa7134_dmasound_init);
1335 EXPORT_SYMBOL(saa7134_dmasound_exit);
1336 EXPORT_SYMBOL(saa7134_pgtable_free);
1337 EXPORT_SYMBOL(saa7134_pgtable_build);
1338 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1339 EXPORT_SYMBOL(saa7134_set_dmabits);
1340
1341 /* ----------------------------------------------------------- */
1342 /*
1343  * Local variables:
1344  * c-basic-offset: 8
1345  * End:
1346  */