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 static void flush_request_submodules(struct saa7134_dev *dev)
 170 {
 171         flush_work_sync(&dev->request_module_wk);
 172 }
 173
 174 #else
 175 #define request_submodules(dev)
 176 #define flush_request_submodules(dev)
 177 #endif /* CONFIG_MODULES */
 178
 179 /* ------------------------------------------------------------------ */
 180
 181 /* nr of (saa7134-)pages for the given buffer size */
 182 static int saa7134_buffer_pages(int size)
 183 {
 184         size  = PAGE_ALIGN(size);
 185         size += PAGE_SIZE; /* for non-page-aligned buffers */
 186         size /= 4096;
 187         return size;
 188 }
 189
 190 /* calc max # of buffers from size (must not exceed the 4MB virtual
 191  * address space per DMA channel) */
 192 int saa7134_buffer_count(unsigned int size, unsigned int count)
 193 {
 194         unsigned int maxcount;
 195
 196         maxcount = 1024 / saa7134_buffer_pages(size);
 197         if (count > maxcount)
 198                 count = maxcount;
 199         return count;
 200 }
 201
 202 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 203 {
 204         return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
 205 }
 206
 207 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 208 {
 209         unsigned long base;
 210         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 211
 212         base  = saa7134_buffer_startpage(buf) * 4096;
 213         base += dma->sglist[0].offset;
 214         return base;
 215 }
 216
 217 /* ------------------------------------------------------------------ */
 218
 219 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 220 {
 221         __le32       *cpu;
 222         dma_addr_t   dma_addr = 0;
 223
 224         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 225         if (NULL == cpu)
 226                 return -ENOMEM;
 227         pt->size = SAA7134_PGTABLE_SIZE;
 228         pt->cpu  = cpu;
 229         pt->dma  = dma_addr;
 230         return 0;
 231 }
 232
 233 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 234                           struct scatterlist *list, unsigned int length,
 235                           unsigned int startpage)
 236 {
 237         __le32        *ptr;
 238         unsigned int  i,p;
 239
 240         BUG_ON(NULL == pt || NULL == pt->cpu);
 241
 242         ptr = pt->cpu + startpage;
 243         for (i = 0; i < length; i++, list++)
 244                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 245                         *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
 246         return 0;
 247 }
 248
 249 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 250 {
 251         if (NULL == pt->cpu)
 252                 return;
 253         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 254         pt->cpu = NULL;
 255 }
 256
 257 /* ------------------------------------------------------------------ */
 258
 259 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
 260 {
 261         struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
 262         BUG_ON(in_interrupt());
 263
 264         videobuf_waiton(q, &buf->vb, 0, 0);
 265         videobuf_dma_unmap(q->dev, dma);
 266         videobuf_dma_free(dma);
 267         buf->vb.state = VIDEOBUF_NEEDS_INIT;
 268 }
 269
 270 /* ------------------------------------------------------------------ */
 271
 272 int saa7134_buffer_queue(struct saa7134_dev *dev,
 273                          struct saa7134_dmaqueue *q,
 274                          struct saa7134_buf *buf)
 275 {
 276         struct saa7134_buf *next = NULL;
 277
 278         assert_spin_locked(&dev->slock);
 279         dprintk("buffer_queue %p\n",buf);
 280         if (NULL == q->curr) {
 281                 if (!q->need_two) {
 282                         q->curr = buf;
 283                         buf->activate(dev,buf,NULL);
 284                 } else if (list_empty(&q->queue)) {
 285                         list_add_tail(&buf->vb.queue,&q->queue);
 286                         buf->vb.state = VIDEOBUF_QUEUED;
 287                 } else {
 288                         next = list_entry(q->queue.next,struct saa7134_buf,
 289                                           vb.queue);
 290                         q->curr = buf;
 291                         buf->activate(dev,buf,next);
 292                 }
 293         } else {
 294                 list_add_tail(&buf->vb.queue,&q->queue);
 295                 buf->vb.state = VIDEOBUF_QUEUED;
 296         }
 297         return 0;
 298 }
 299
 300 void saa7134_buffer_finish(struct saa7134_dev *dev,
 301                            struct saa7134_dmaqueue *q,
 302                            unsigned int state)
 303 {
 304         assert_spin_locked(&dev->slock);
 305         dprintk("buffer_finish %p\n",q->curr);
 306
 307         /* finish current buffer */
 308         q->curr->vb.state = state;
 309         do_gettimeofday(&q->curr->vb.ts);
 310         wake_up(&q->curr->vb.done);
 311         q->curr = NULL;
 312 }
 313
 314 void saa7134_buffer_next(struct saa7134_dev *dev,
 315                          struct saa7134_dmaqueue *q)
 316 {
 317         struct saa7134_buf *buf,*next = NULL;
 318
 319         assert_spin_locked(&dev->slock);
 320         BUG_ON(NULL != q->curr);
 321
 322         if (!list_empty(&q->queue)) {
 323                 /* activate next one from queue */
 324                 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
 325                 dprintk("buffer_next %p [prev=%p/next=%p]\n",
 326                         buf,q->queue.prev,q->queue.next);
 327                 list_del(&buf->vb.queue);
 328                 if (!list_empty(&q->queue))
 329                         next = list_entry(q->queue.next,struct saa7134_buf,
 330                                           vb.queue);
 331                 q->curr = buf;
 332                 buf->activate(dev,buf,next);
 333                 dprintk("buffer_next #2 prev=%p/next=%p\n",
 334                         q->queue.prev,q->queue.next);
 335         } else {
 336                 /* nothing to do -- just stop DMA */
 337                 dprintk("buffer_next %p\n",NULL);
 338                 saa7134_set_dmabits(dev);
 339                 del_timer(&q->timeout);
 340
 341                 if (card_has_mpeg(dev))
 342                         if (dev->ts_started)
 343                                 saa7134_ts_stop(dev);
 344         }
 345 }
 346
 347 void saa7134_buffer_timeout(unsigned long data)
 348 {
 349         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 350         struct saa7134_dev *dev = q->dev;
 351         unsigned long flags;
 352
 353         spin_lock_irqsave(&dev->slock,flags);
 354
 355         /* try to reset the hardware (SWRST) */
 356         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 357         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 358         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 359
 360         /* flag current buffer as failed,
 361            try to start over with the next one. */
 362         if (q->curr) {
 363                 dprintk("timeout on %p\n",q->curr);
 364                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 365         }
 366         saa7134_buffer_next(dev,q);
 367         spin_unlock_irqrestore(&dev->slock,flags);
 368 }
 369
 370 /* ------------------------------------------------------------------ */
 371
 372 int saa7134_set_dmabits(struct saa7134_dev *dev)
 373 {
 374         u32 split, task=0, ctrl=0, irq=0;
 375         enum v4l2_field cap = V4L2_FIELD_ANY;
 376         enum v4l2_field ov  = V4L2_FIELD_ANY;
 377
 378         assert_spin_locked(&dev->slock);
 379
 380         if (dev->insuspend)
 381                 return 0;
 382
 383         /* video capture -- dma 0 + video task A */
 384         if (dev->video_q.curr) {
 385                 task |= 0x01;
 386                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 387                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 388                         SAA7134_IRQ1_INTE_RA0_0;
 389                 cap = dev->video_q.curr->vb.field;
 390         }
 391
 392         /* video capture -- dma 1+2 (planar modes) */
 393         if (dev->video_q.curr &&
 394             dev->video_q.curr->fmt->planar) {
 395                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 396                         SAA7134_MAIN_CTRL_TE5;
 397         }
 398
 399         /* screen overlay -- dma 0 + video task B */
 400         if (dev->ovenable) {
 401                 task |= 0x10;
 402                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 403                 ov = dev->ovfield;
 404         }
 405
 406         /* vbi capture -- dma 0 + vbi task A+B */
 407         if (dev->vbi_q.curr) {
 408                 task |= 0x22;
 409                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 410                         SAA7134_MAIN_CTRL_TE3;
 411                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 412                         SAA7134_IRQ1_INTE_RA0_6 |
 413                         SAA7134_IRQ1_INTE_RA0_5 |
 414                         SAA7134_IRQ1_INTE_RA0_4;
 415         }
 416
 417         /* audio capture -- dma 3 */
 418         if (dev->dmasound.dma_running) {
 419                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 420                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 421                         SAA7134_IRQ1_INTE_RA3_0;
 422         }
 423
 424         /* TS capture -- dma 5 */
 425         if (dev->ts_q.curr) {
 426                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 427                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 428                         SAA7134_IRQ1_INTE_RA2_0;
 429         }
 430
 431         /* set task conditions + field handling */
 432         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 433                 /* default config -- use full frames */
 434                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 435                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 436                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 437                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 438                 split = 0;
 439         } else {
 440                 /* split fields between tasks */
 441                 if (V4L2_FIELD_TOP == cap) {
 442                         /* odd A, even B, repeat */
 443                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 444                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 445                 } else {
 446                         /* odd B, even A, repeat */
 447                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 448                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 449                 }
 450                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 451                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 452                 split = 1;
 453         }
 454
 455         /* irqs */
 456         saa_writeb(SAA7134_REGION_ENABLE, task);
 457         saa_writel(SAA7134_IRQ1,          irq);
 458         saa_andorl(SAA7134_MAIN_CTRL,
 459                    SAA7134_MAIN_CTRL_TE0 |
 460                    SAA7134_MAIN_CTRL_TE1 |
 461                    SAA7134_MAIN_CTRL_TE2 |
 462                    SAA7134_MAIN_CTRL_TE3 |
 463                    SAA7134_MAIN_CTRL_TE4 |
 464                    SAA7134_MAIN_CTRL_TE5 |
 465                    SAA7134_MAIN_CTRL_TE6,
 466                    ctrl);
 467         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 468                 task, ctrl, irq, split ? "no" : "yes");
 469
 470         return 0;
 471 }
 472
 473 /* ------------------------------------------------------------------ */
 474 /* IRQ handler + helpers                                              */
 475
 476 static char *irqbits[] = {
 477         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 478         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 479         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 480         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 481 };
 482 #define IRQBITS ARRAY_SIZE(irqbits)
 483
 484 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 485                             unsigned long report, unsigned long status)
 486 {
 487         unsigned int i;
 488
 489         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 490                dev->name,loop,jiffies,report,status);
 491         for (i = 0; i < IRQBITS; i++) {
 492                 if (!(report & (1 << i)))
 493                         continue;
 494                 printk(" %s",irqbits[i]);
 495         }
 496         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 497                 printk(" | RA0=%s,%s,%s,%ld",
 498                        (status & 0x40) ? "vbi"  : "video",
 499                        (status & 0x20) ? "b"    : "a",
 500                        (status & 0x10) ? "odd"  : "even",
 501                        (status & 0x0f));
 502         }
 503         printk("\n");
 504 }
 505
 506 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 507 {
 508         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 509         unsigned long report,status;
 510         int loop, handled = 0;
 511
 512         if (dev->insuspend)
 513                 goto out;
 514
 515         for (loop = 0; loop < 10; loop++) {
 516                 report = saa_readl(SAA7134_IRQ_REPORT);
 517                 status = saa_readl(SAA7134_IRQ_STATUS);
 518
 519                 /* If dmasound support is active and we get a sound report,
 520                  * mask out the report and let the saa7134-alsa module deal
 521                  * with it */
 522                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 523                         (dev->dmasound.priv_data != NULL) )
 524                 {
 525                         if (irq_debug > 1)
 526                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 527                                        dev->name);
 528                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 529                 }
 530
 531                 if (0 == report) {
 532                         if (irq_debug > 1)
 533                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 534                                        dev->name);
 535                         goto out;
 536                 }
 537
 538                 handled = 1;
 539                 saa_writel(SAA7134_IRQ_REPORT,report);
 540                 if (irq_debug)
 541                         print_irqstatus(dev,loop,report,status);
 542
 543
 544                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 545                         (report & SAA7134_IRQ_REPORT_INTL))
 546                                 saa7134_irq_video_signalchange(dev);
 547
 548
 549                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 550                     (status & 0x60) == 0)
 551                         saa7134_irq_video_done(dev,status);
 552
 553                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 554                     (status & 0x40) == 0x40)
 555                         saa7134_irq_vbi_done(dev,status);
 556
 557                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 558                     card_has_mpeg(dev))
 559                         saa7134_irq_ts_done(dev,status);
 560
 561                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 562                         switch (dev->has_remote) {
 563                                 case SAA7134_REMOTE_GPIO:
 564                                         if (!dev->remote)
 565                                                 break;
 566                                         if  (dev->remote->mask_keydown & 0x10000) {
 567                                                 saa7134_input_irq(dev);
 568                                         }
 569                                         break;
 570
 571                                 case SAA7134_REMOTE_I2C:
 572                                         break;                  /* FIXME: invoke I2C get_key() */
 573
 574                                 default:                        /* GPIO16 not used by IR remote */
 575                                         break;
 576                         }
 577                 }
 578
 579                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 580                         switch (dev->has_remote) {
 581                                 case SAA7134_REMOTE_GPIO:
 582                                         if (!dev->remote)
 583                                                 break;
 584                                         if ((dev->remote->mask_keydown & 0x40000) ||
 585                                             (dev->remote->mask_keyup & 0x40000)) {
 586                                                 saa7134_input_irq(dev);
 587                                         }
 588                                         break;
 589
 590                                 case SAA7134_REMOTE_I2C:
 591                                         break;                  /* FIXME: invoke I2C get_key() */
 592
 593                                 default:                        /* GPIO18 not used by IR remote */
 594                                         break;
 595                         }
 596                 }
 597         }
 598
 599         if (10 == loop) {
 600                 print_irqstatus(dev,loop,report,status);
 601                 if (report & SAA7134_IRQ_REPORT_PE) {
 602                         /* disable all parity error */
 603                         printk(KERN_WARNING "%s/irq: looping -- "
 604                                "clearing PE (parity error!) enable bit\n",dev->name);
 605                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 606                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 607                         /* disable gpio16 IRQ */
 608                         printk(KERN_WARNING "%s/irq: looping -- "
 609                                "clearing GPIO16 enable bit\n",dev->name);
 610                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 611                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 612                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 613                         /* disable gpio18 IRQs */
 614                         printk(KERN_WARNING "%s/irq: looping -- "
 615                                "clearing GPIO18 enable bit\n",dev->name);
 616                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 617                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 618                 } else {
 619                         /* disable all irqs */
 620                         printk(KERN_WARNING "%s/irq: looping -- "
 621                                "clearing all enable bits\n",dev->name);
 622                         saa_writel(SAA7134_IRQ1,0);
 623                         saa_writel(SAA7134_IRQ2,0);
 624                 }
 625         }
 626
 627  out:
 628         return IRQ_RETVAL(handled);
 629 }
 630
 631 /* ------------------------------------------------------------------ */
 632
 633 /* early init (no i2c, no irq) */
 634
 635 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 636 {
 637         /* RAM FIFO config */
 638         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 639         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 640
 641         /* enable audio + video processing */
 642         saa_writel(SAA7134_MAIN_CTRL,
 643                         SAA7134_MAIN_CTRL_VPLLE |
 644                         SAA7134_MAIN_CTRL_APLLE |
 645                         SAA7134_MAIN_CTRL_EXOSC |
 646                         SAA7134_MAIN_CTRL_EVFE1 |
 647                         SAA7134_MAIN_CTRL_EVFE2 |
 648                         SAA7134_MAIN_CTRL_ESFE  |
 649                         SAA7134_MAIN_CTRL_EBDAC);
 650
 651         /*
 652         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 653         * OSS initialization writes to registers via the audio DSP; these
 654         * writes will fail unless the audio clock has been started.  At worst,
 655         * audio will not work.
 656         */
 657
 658         /* enable peripheral devices */
 659         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 660
 661         /* set vertical line numbering start (vbi needs this) */
 662         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 663
 664         return 0;
 665 }
 666
 667 static int saa7134_hwinit1(struct saa7134_dev *dev)
 668 {
 669         dprintk("hwinit1\n");
 670
 671         saa_writel(SAA7134_IRQ1, 0);
 672         saa_writel(SAA7134_IRQ2, 0);
 673
 674         /* Clear any stale IRQ reports */
 675         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 676
 677         mutex_init(&dev->lock);
 678         spin_lock_init(&dev->slock);
 679
 680         saa7134_track_gpio(dev,"pre-init");
 681         saa7134_video_init1(dev);
 682         saa7134_vbi_init1(dev);
 683         if (card_has_mpeg(dev))
 684                 saa7134_ts_init1(dev);
 685         saa7134_input_init1(dev);
 686
 687         saa7134_hw_enable1(dev);
 688
 689         return 0;
 690 }
 691
 692 /* late init (with i2c + irq) */
 693 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 694 {
 695
 696         unsigned int irq2_mask;
 697
 698         /* enable IRQ's */
 699         irq2_mask =
 700                 SAA7134_IRQ2_INTE_DEC3    |
 701                 SAA7134_IRQ2_INTE_DEC2    |
 702                 SAA7134_IRQ2_INTE_DEC1    |
 703                 SAA7134_IRQ2_INTE_DEC0    |
 704                 SAA7134_IRQ2_INTE_PE      |
 705                 SAA7134_IRQ2_INTE_AR;
 706
 707         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 708                 if (dev->remote->mask_keydown & 0x10000)
 709                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 710                 else {          /* Allow enabling both IRQ edge triggers */
 711                         if (dev->remote->mask_keydown & 0x40000)
 712                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 713                         if (dev->remote->mask_keyup & 0x40000)
 714                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 715                 }
 716         }
 717
 718         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 719                 request_module("ir-kbd-i2c");
 720         }
 721
 722         saa_writel(SAA7134_IRQ1, 0);
 723         saa_writel(SAA7134_IRQ2, irq2_mask);
 724
 725         return 0;
 726 }
 727
 728 static int saa7134_hwinit2(struct saa7134_dev *dev)
 729 {
 730
 731         dprintk("hwinit2\n");
 732
 733         saa7134_video_init2(dev);
 734         saa7134_tvaudio_init2(dev);
 735
 736         saa7134_hw_enable2(dev);
 737
 738         return 0;
 739 }
 740
 741
 742 /* shutdown */
 743 static int saa7134_hwfini(struct saa7134_dev *dev)
 744 {
 745         dprintk("hwfini\n");
 746
 747         if (card_has_mpeg(dev))
 748                 saa7134_ts_fini(dev);
 749         saa7134_input_fini(dev);
 750         saa7134_vbi_fini(dev);
 751         saa7134_tvaudio_fini(dev);
 752         return 0;
 753 }
 754
 755 static void __devinit must_configure_manually(void)
 756 {
 757         unsigned int i,p;
 758
 759         printk(KERN_WARNING
 760                "saa7134: <rant>\n"
 761                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 762                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 763                "saa7134:  subsystem ID and I can't identify it automatically\n"
 764                "saa7134: </rant>\n"
 765                "saa7134: I feel better now.  Ok, here are the good news:\n"
 766                "saa7134: You can use the card=<nr> insmod option to specify\n"
 767                "saa7134: which board do you have.  The list:\n");
 768         for (i = 0; i < saa7134_bcount; i++) {
 769                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 770                        i,saa7134_boards[i].name);
 771                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 772                         if (saa7134_pci_tbl[p].driver_data != i)
 773                                 continue;
 774                         printk(" %04x:%04x",
 775                                saa7134_pci_tbl[p].subvendor,
 776                                saa7134_pci_tbl[p].subdevice);
 777                 }
 778                 printk("\n");
 779         }
 780 }
 781
 782 static struct video_device *vdev_init(struct saa7134_dev *dev,
 783                                       struct video_device *template,
 784                                       char *type)
 785 {
 786         struct video_device *vfd;
 787
 788         vfd = video_device_alloc();
 789         if (NULL == vfd)
 790                 return NULL;
 791         *vfd = *template;
 792         vfd->v4l2_dev  = &dev->v4l2_dev;
 793         vfd->release = video_device_release;
 794         vfd->debug   = video_debug;
 795         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 796                  dev->name, type, saa7134_boards[dev->board].name);
 797         video_set_drvdata(vfd, dev);
 798         return vfd;
 799 }
 800
 801 static void saa7134_unregister_video(struct saa7134_dev *dev)
 802 {
 803         if (dev->video_dev) {
 804                 if (video_is_registered(dev->video_dev))
 805                         video_unregister_device(dev->video_dev);
 806                 else
 807                         video_device_release(dev->video_dev);
 808                 dev->video_dev = NULL;
 809         }
 810         if (dev->vbi_dev) {
 811                 if (video_is_registered(dev->vbi_dev))
 812                         video_unregister_device(dev->vbi_dev);
 813                 else
 814                         video_device_release(dev->vbi_dev);
 815                 dev->vbi_dev = NULL;
 816         }
 817         if (dev->radio_dev) {
 818                 if (video_is_registered(dev->radio_dev))
 819                         video_unregister_device(dev->radio_dev);
 820                 else
 821                         video_device_release(dev->radio_dev);
 822                 dev->radio_dev = NULL;
 823         }
 824 }
 825
 826 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 827                             struct saa7134_dev *dev)
 828 {
 829         int err;
 830
 831         if (NULL != dev->mops)
 832                 return;
 833         if (saa7134_boards[dev->board].mpeg != ops->type)
 834                 return;
 835         err = ops->init(dev);
 836         if (0 != err)
 837                 return;
 838         dev->mops = ops;
 839 }
 840
 841 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 842                             struct saa7134_dev *dev)
 843 {
 844         if (NULL == dev->mops)
 845                 return;
 846         if (dev->mops != ops)
 847                 return;
 848         dev->mops->fini(dev);
 849         dev->mops = NULL;
 850 }
 851
 852 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 853                                      const struct pci_device_id *pci_id)
 854 {
 855         struct saa7134_dev *dev;
 856         struct saa7134_mpeg_ops *mops;
 857         int err;
 858
 859         if (saa7134_devcount == SAA7134_MAXBOARDS)
 860                 return -ENOMEM;
 861
 862         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 863         if (NULL == dev)
 864                 return -ENOMEM;
 865
 866         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 867         if (err)
 868                 goto fail0;
 869
 870         /* pci init */
 871         dev->pci = pci_dev;
 872         if (pci_enable_device(pci_dev)) {
 873                 err = -EIO;
 874                 goto fail1;
 875         }
 876
 877         dev->nr = saa7134_devcount;
 878         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 879
 880         /* pci quirks */
 881         if (pci_pci_problems) {
 882                 if (pci_pci_problems & PCIPCI_TRITON)
 883                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 884                 if (pci_pci_problems & PCIPCI_NATOMA)
 885                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 886                 if (pci_pci_problems & PCIPCI_VIAETBF)
 887                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 888                 if (pci_pci_problems & PCIPCI_VSFX)
 889                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 890 #ifdef PCIPCI_ALIMAGIK
 891                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 892                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 893                                dev->name);
 894                         latency = 0x0A;
 895                 }
 896 #endif
 897                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 898                         printk(KERN_INFO "%s: quirk: this driver and your "
 899                                         "chipset may not work together"
 900                                         " in overlay mode.\n",dev->name);
 901                         if (!saa7134_no_overlay) {
 902                                 printk(KERN_INFO "%s: quirk: overlay "
 903                                                 "mode will be disabled.\n",
 904                                                 dev->name);
 905                                 saa7134_no_overlay = 1;
 906                         } else {
 907                                 printk(KERN_INFO "%s: quirk: overlay "
 908                                                 "mode will be forced. Use this"
 909                                                 " option at your own risk.\n",
 910                                                 dev->name);
 911                         }
 912                 }
 913         }
 914         if (UNSET != latency) {
 915                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 916                        dev->name,latency);
 917                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 918         }
 919
 920         /* print pci info */
 921         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 922         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 923         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 924                "latency: %d, mmio: 0x%llx\n", dev->name,
 925                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 926                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 927         pci_set_master(pci_dev);
 928         if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
 929                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 930                 err = -EIO;
 931                 goto fail1;
 932         }
 933
 934         /* board config */
 935         dev->board = pci_id->driver_data;
 936         if (card[dev->nr] >= 0 &&
 937             card[dev->nr] < saa7134_bcount)
 938                 dev->board = card[dev->nr];
 939         if (SAA7134_BOARD_NOAUTO == dev->board) {
 940                 must_configure_manually();
 941                 dev->board = SAA7134_BOARD_UNKNOWN;
 942         }
 943         dev->autodetected = card[dev->nr] != dev->board;
 944         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 945         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 946         dev->radio_type = saa7134_boards[dev->board].radio_type;
 947         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 948         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 949         if (UNSET != tuner[dev->nr])
 950                 dev->tuner_type = tuner[dev->nr];
 951         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 952                 dev->name,pci_dev->subsystem_vendor,
 953                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 954                 dev->board, dev->autodetected ?
 955                 "autodetected" : "insmod option");
 956
 957         /* get mmio */
 958         if (!request_mem_region(pci_resource_start(pci_dev,0),
 959                                 pci_resource_len(pci_dev,0),
 960                                 dev->name)) {
 961                 err = -EBUSY;
 962                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 963                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 964                 goto fail1;
 965         }
 966         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 967                              pci_resource_len(pci_dev, 0));
 968         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 969         if (NULL == dev->lmmio) {
 970                 err = -EIO;
 971                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 972                        dev->name);
 973                 goto fail2;
 974         }
 975
 976         /* initialize hardware #1 */
 977         saa7134_board_init1(dev);
 978         saa7134_hwinit1(dev);
 979
 980         /* get irq */
 981         err = request_irq(pci_dev->irq, saa7134_irq,
 982                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 983         if (err < 0) {
 984                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 985                        dev->name,pci_dev->irq);
 986                 goto fail3;
 987         }
 988
 989         /* wait a bit, register i2c bus */
 990         msleep(100);
 991         saa7134_i2c_register(dev);
 992         saa7134_board_init2(dev);
 993
 994         saa7134_hwinit2(dev);
 995
 996         /* load i2c helpers */
 997         if (card_is_empress(dev)) {
 998                 struct v4l2_subdev *sd =
 999                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1000                                 "saa6752hs",
1001                                 saa7134_boards[dev->board].empress_addr, NULL);
1002
1003                 if (sd)
1004                         sd->grp_id = GRP_EMPRESS;
1005         }
1006
1007         if (saa7134_boards[dev->board].rds_addr) {
1008                 struct v4l2_subdev *sd;
1009
1010                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1011                                 &dev->i2c_adap, "saa6588",
1012                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1013                 if (sd) {
1014                         printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1015                         dev->has_rds = 1;
1016                 }
1017         }
1018
1019         v4l2_prio_init(&dev->prio);
1020
1021         mutex_lock(&saa7134_devlist_lock);
1022         list_for_each_entry(mops, &mops_list, next)
1023                 mpeg_ops_attach(mops, dev);
1024         list_add_tail(&dev->devlist, &saa7134_devlist);
1025         mutex_unlock(&saa7134_devlist_lock);
1026
1027         /* check for signal */
1028         saa7134_irq_video_signalchange(dev);
1029
1030         if (TUNER_ABSENT != dev->tuner_type)
1031                 saa_call_all(dev, core, s_power, 0);
1032
1033         /* register v4l devices */
1034         if (saa7134_no_overlay > 0)
1035                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1036
1037         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1038         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1039                                     video_nr[dev->nr]);
1040         if (err < 0) {
1041                 printk(KERN_INFO "%s: can't register video device\n",
1042                        dev->name);
1043                 goto fail4;
1044         }
1045         printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1046                dev->name, video_device_node_name(dev->video_dev));
1047
1048         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1049
1050         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1051                                     vbi_nr[dev->nr]);
1052         if (err < 0)
1053                 goto fail4;
1054         printk(KERN_INFO "%s: registered device %s\n",
1055                dev->name, video_device_node_name(dev->vbi_dev));
1056
1057         if (card_has_radio(dev)) {
1058                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1059                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1060                                             radio_nr[dev->nr]);
1061                 if (err < 0)
1062                         goto fail4;
1063                 printk(KERN_INFO "%s: registered device %s\n",
1064                        dev->name, video_device_node_name(dev->radio_dev));
1065         }
1066
1067         /* everything worked */
1068         saa7134_devcount++;
1069
1070         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1071                 saa7134_dmasound_init(dev);
1072
1073         request_submodules(dev);
1074         return 0;
1075
1076  fail4:
1077         saa7134_unregister_video(dev);
1078         saa7134_i2c_unregister(dev);
1079         free_irq(pci_dev->irq, dev);
1080  fail3:
1081         saa7134_hwfini(dev);
1082         iounmap(dev->lmmio);
1083  fail2:
1084         release_mem_region(pci_resource_start(pci_dev,0),
1085                            pci_resource_len(pci_dev,0));
1086  fail1:
1087         v4l2_device_unregister(&dev->v4l2_dev);
1088  fail0:
1089         kfree(dev);
1090         return err;
1091 }
1092
1093 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1094 {
1095         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1096         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1097         struct saa7134_mpeg_ops *mops;
1098
1099         flush_request_submodules(dev);
1100
1101         /* Release DMA sound modules if present */
1102         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1103                 saa7134_dmasound_exit(dev);
1104         }
1105
1106         /* debugging ... */
1107         if (irq_debug) {
1108                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1109                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1110                 print_irqstatus(dev,42,report,status);
1111         }
1112
1113         /* disable peripheral devices */
1114         saa_writeb(SAA7134_SPECIAL_MODE,0);
1115
1116         /* shutdown hardware */
1117         saa_writel(SAA7134_IRQ1,0);
1118         saa_writel(SAA7134_IRQ2,0);
1119         saa_writel(SAA7134_MAIN_CTRL,0);
1120
1121         /* shutdown subsystems */
1122         saa7134_hwfini(dev);
1123
1124         /* unregister */
1125         mutex_lock(&saa7134_devlist_lock);
1126         list_del(&dev->devlist);
1127         list_for_each_entry(mops, &mops_list, next)
1128                 mpeg_ops_detach(mops, dev);
1129         mutex_unlock(&saa7134_devlist_lock);
1130         saa7134_devcount--;
1131
1132         saa7134_i2c_unregister(dev);
1133         saa7134_unregister_video(dev);
1134
1135
1136         /* the DMA sound modules should be unloaded before reaching
1137            this, but just in case they are still present... */
1138         if (dev->dmasound.priv_data != NULL) {
1139                 free_irq(pci_dev->irq, &dev->dmasound);
1140                 dev->dmasound.priv_data = NULL;
1141         }
1142
1143
1144         /* release resources */
1145         free_irq(pci_dev->irq, dev);
1146         iounmap(dev->lmmio);
1147         release_mem_region(pci_resource_start(pci_dev,0),
1148                            pci_resource_len(pci_dev,0));
1149
1150
1151         v4l2_device_unregister(&dev->v4l2_dev);
1152
1153         /* free memory */
1154         kfree(dev);
1155 }
1156
1157 #ifdef CONFIG_PM
1158
1159 /* resends a current buffer in queue after resume */
1160 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1161                                   struct saa7134_dmaqueue *q)
1162 {
1163         struct saa7134_buf *buf, *next;
1164
1165         assert_spin_locked(&dev->slock);
1166
1167         buf  = q->curr;
1168         next = buf;
1169         dprintk("buffer_requeue\n");
1170
1171         if (!buf)
1172                 return 0;
1173
1174         dprintk("buffer_requeue : resending active buffers \n");
1175
1176         if (!list_empty(&q->queue))
1177                 next = list_entry(q->queue.next, struct saa7134_buf,
1178                                           vb.queue);
1179         buf->activate(dev, buf, next);
1180
1181         return 0;
1182 }
1183
1184 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1185 {
1186         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1187         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1188
1189         /* disable overlay - apps should enable it explicitly on resume*/
1190         dev->ovenable = 0;
1191
1192         /* Disable interrupts, DMA, and rest of the chip*/
1193         saa_writel(SAA7134_IRQ1, 0);
1194         saa_writel(SAA7134_IRQ2, 0);
1195         saa_writel(SAA7134_MAIN_CTRL, 0);
1196
1197         dev->insuspend = 1;
1198         synchronize_irq(pci_dev->irq);
1199
1200         /* ACK interrupts once more, just in case,
1201                 since the IRQ handler won't ack them anymore*/
1202
1203         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1204
1205         /* Disable timeout timers - if we have active buffers, we will
1206            fill them on resume*/
1207
1208         del_timer(&dev->video_q.timeout);
1209         del_timer(&dev->vbi_q.timeout);
1210         del_timer(&dev->ts_q.timeout);
1211
1212         if (dev->remote)
1213                 saa7134_ir_stop(dev);
1214
1215         pci_save_state(pci_dev);
1216         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1217
1218         return 0;
1219 }
1220
1221 static int saa7134_resume(struct pci_dev *pci_dev)
1222 {
1223         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1224         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1225         unsigned long flags;
1226
1227         pci_set_power_state(pci_dev, PCI_D0);
1228         pci_restore_state(pci_dev);
1229
1230         /* Do things that are done in saa7134_initdev ,
1231                 except of initializing memory structures.*/
1232
1233         saa7134_board_init1(dev);
1234
1235         /* saa7134_hwinit1 */
1236         if (saa7134_boards[dev->board].video_out)
1237                 saa7134_videoport_init(dev);
1238         if (card_has_mpeg(dev))
1239                 saa7134_ts_init_hw(dev);
1240         if (dev->remote)
1241                 saa7134_ir_start(dev);
1242         saa7134_hw_enable1(dev);
1243
1244         msleep(100);
1245
1246         saa7134_board_init2(dev);
1247
1248         /*saa7134_hwinit2*/
1249         saa7134_set_tvnorm_hw(dev);
1250         saa7134_tvaudio_setmute(dev);
1251         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1252         saa7134_tvaudio_init(dev);
1253         saa7134_tvaudio_do_scan(dev);
1254         saa7134_enable_i2s(dev);
1255         saa7134_hw_enable2(dev);
1256
1257         saa7134_irq_video_signalchange(dev);
1258
1259         /*resume unfinished buffer(s)*/
1260         spin_lock_irqsave(&dev->slock, flags);
1261         saa7134_buffer_requeue(dev, &dev->video_q);
1262         saa7134_buffer_requeue(dev, &dev->vbi_q);
1263         saa7134_buffer_requeue(dev, &dev->ts_q);
1264
1265         /* FIXME: Disable DMA audio sound - temporary till proper support
1266                   is implemented*/
1267
1268         dev->dmasound.dma_running = 0;
1269
1270         /* start DMA now*/
1271         dev->insuspend = 0;
1272         smp_wmb();
1273         saa7134_set_dmabits(dev);
1274         spin_unlock_irqrestore(&dev->slock, flags);
1275
1276         return 0;
1277 }
1278 #endif
1279
1280 /* ----------------------------------------------------------- */
1281
1282 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1283 {
1284         struct saa7134_dev *dev;
1285
1286         mutex_lock(&saa7134_devlist_lock);
1287         list_for_each_entry(dev, &saa7134_devlist, devlist)
1288                 mpeg_ops_attach(ops, dev);
1289         list_add_tail(&ops->next,&mops_list);
1290         mutex_unlock(&saa7134_devlist_lock);
1291         return 0;
1292 }
1293
1294 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1295 {
1296         struct saa7134_dev *dev;
1297
1298         mutex_lock(&saa7134_devlist_lock);
1299         list_del(&ops->next);
1300         list_for_each_entry(dev, &saa7134_devlist, devlist)
1301                 mpeg_ops_detach(ops, dev);
1302         mutex_unlock(&saa7134_devlist_lock);
1303 }
1304
1305 EXPORT_SYMBOL(saa7134_ts_register);
1306 EXPORT_SYMBOL(saa7134_ts_unregister);
1307
1308 /* ----------------------------------------------------------- */
1309
1310 static struct pci_driver saa7134_pci_driver = {
1311         .name     = "saa7134",
1312         .id_table = saa7134_pci_tbl,
1313         .probe    = saa7134_initdev,
1314         .remove   = __devexit_p(saa7134_finidev),
1315 #ifdef CONFIG_PM
1316         .suspend  = saa7134_suspend,
1317         .resume   = saa7134_resume
1318 #endif
1319 };
1320
1321 static int __init saa7134_init(void)
1322 {
1323         INIT_LIST_HEAD(&saa7134_devlist);
1324         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1325                (SAA7134_VERSION_CODE >> 16) & 0xff,
1326                (SAA7134_VERSION_CODE >>  8) & 0xff,
1327                SAA7134_VERSION_CODE & 0xff);
1328 #ifdef SNAPSHOT
1329         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1330                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1331 #endif
1332         return pci_register_driver(&saa7134_pci_driver);
1333 }
1334
1335 static void __exit saa7134_fini(void)
1336 {
1337         pci_unregister_driver(&saa7134_pci_driver);
1338 }
1339
1340 module_init(saa7134_init);
1341 module_exit(saa7134_fini);
1342
1343 /* ----------------------------------------------------------- */
1344
1345 EXPORT_SYMBOL(saa7134_set_gpio);
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  */