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                 if (card_has_mpeg(dev))
 336                         if (dev->ts_started)
 337                                 saa7134_ts_stop(dev);
 338         }
 339 }
 340
 341 void saa7134_buffer_timeout(unsigned long data)
 342 {
 343         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
 344         struct saa7134_dev *dev = q->dev;
 345         unsigned long flags;
 346
 347         spin_lock_irqsave(&dev->slock,flags);
 348
 349         /* try to reset the hardware (SWRST) */
 350         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 351         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 352         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 353
 354         /* flag current buffer as failed,
 355            try to start over with the next one. */
 356         if (q->curr) {
 357                 dprintk("timeout on %p\n",q->curr);
 358                 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
 359         }
 360         saa7134_buffer_next(dev,q);
 361         spin_unlock_irqrestore(&dev->slock,flags);
 362 }
 363
 364 /* ------------------------------------------------------------------ */
 365
 366 int saa7134_set_dmabits(struct saa7134_dev *dev)
 367 {
 368         u32 split, task=0, ctrl=0, irq=0;
 369         enum v4l2_field cap = V4L2_FIELD_ANY;
 370         enum v4l2_field ov  = V4L2_FIELD_ANY;
 371
 372         assert_spin_locked(&dev->slock);
 373
 374         if (dev->insuspend)
 375                 return 0;
 376
 377         /* video capture -- dma 0 + video task A */
 378         if (dev->video_q.curr) {
 379                 task |= 0x01;
 380                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 381                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 382                         SAA7134_IRQ1_INTE_RA0_0;
 383                 cap = dev->video_q.curr->vb.field;
 384         }
 385
 386         /* video capture -- dma 1+2 (planar modes) */
 387         if (dev->video_q.curr &&
 388             dev->video_q.curr->fmt->planar) {
 389                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 390                         SAA7134_MAIN_CTRL_TE5;
 391         }
 392
 393         /* screen overlay -- dma 0 + video task B */
 394         if (dev->ovenable) {
 395                 task |= 0x10;
 396                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 397                 ov = dev->ovfield;
 398         }
 399
 400         /* vbi capture -- dma 0 + vbi task A+B */
 401         if (dev->vbi_q.curr) {
 402                 task |= 0x22;
 403                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 404                         SAA7134_MAIN_CTRL_TE3;
 405                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 406                         SAA7134_IRQ1_INTE_RA0_6 |
 407                         SAA7134_IRQ1_INTE_RA0_5 |
 408                         SAA7134_IRQ1_INTE_RA0_4;
 409         }
 410
 411         /* audio capture -- dma 3 */
 412         if (dev->dmasound.dma_running) {
 413                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 414                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 415                         SAA7134_IRQ1_INTE_RA3_0;
 416         }
 417
 418         /* TS capture -- dma 5 */
 419         if (dev->ts_q.curr) {
 420                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 421                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 422                         SAA7134_IRQ1_INTE_RA2_0;
 423         }
 424
 425         /* set task conditions + field handling */
 426         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 427                 /* default config -- use full frames */
 428                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 429                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 430                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 431                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 432                 split = 0;
 433         } else {
 434                 /* split fields between tasks */
 435                 if (V4L2_FIELD_TOP == cap) {
 436                         /* odd A, even B, repeat */
 437                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 438                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 439                 } else {
 440                         /* odd B, even A, repeat */
 441                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 442                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 443                 }
 444                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 445                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 446                 split = 1;
 447         }
 448
 449         /* irqs */
 450         saa_writeb(SAA7134_REGION_ENABLE, task);
 451         saa_writel(SAA7134_IRQ1,          irq);
 452         saa_andorl(SAA7134_MAIN_CTRL,
 453                    SAA7134_MAIN_CTRL_TE0 |
 454                    SAA7134_MAIN_CTRL_TE1 |
 455                    SAA7134_MAIN_CTRL_TE2 |
 456                    SAA7134_MAIN_CTRL_TE3 |
 457                    SAA7134_MAIN_CTRL_TE4 |
 458                    SAA7134_MAIN_CTRL_TE5 |
 459                    SAA7134_MAIN_CTRL_TE6,
 460                    ctrl);
 461         dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 462                 task, ctrl, irq, split ? "no" : "yes");
 463
 464         return 0;
 465 }
 466
 467 /* ------------------------------------------------------------------ */
 468 /* IRQ handler + helpers                                              */
 469
 470 static char *irqbits[] = {
 471         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 472         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 473         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 474         "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
 475 };
 476 #define IRQBITS ARRAY_SIZE(irqbits)
 477
 478 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 479                             unsigned long report, unsigned long status)
 480 {
 481         unsigned int i;
 482
 483         printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
 484                dev->name,loop,jiffies,report,status);
 485         for (i = 0; i < IRQBITS; i++) {
 486                 if (!(report & (1 << i)))
 487                         continue;
 488                 printk(" %s",irqbits[i]);
 489         }
 490         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 491                 printk(" | RA0=%s,%s,%s,%ld",
 492                        (status & 0x40) ? "vbi"  : "video",
 493                        (status & 0x20) ? "b"    : "a",
 494                        (status & 0x10) ? "odd"  : "even",
 495                        (status & 0x0f));
 496         }
 497         printk("\n");
 498 }
 499
 500 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 501 {
 502         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 503         unsigned long report,status;
 504         int loop, handled = 0;
 505
 506         if (dev->insuspend)
 507                 goto out;
 508
 509         for (loop = 0; loop < 10; loop++) {
 510                 report = saa_readl(SAA7134_IRQ_REPORT);
 511                 status = saa_readl(SAA7134_IRQ_STATUS);
 512
 513                 /* If dmasound support is active and we get a sound report,
 514                  * mask out the report and let the saa7134-alsa module deal
 515                  * with it */
 516                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 517                         (dev->dmasound.priv_data != NULL) )
 518                 {
 519                         if (irq_debug > 1)
 520                                 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
 521                                        dev->name);
 522                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 523                 }
 524
 525                 if (0 == report) {
 526                         if (irq_debug > 1)
 527                                 printk(KERN_DEBUG "%s/irq: no (more) work\n",
 528                                        dev->name);
 529                         goto out;
 530                 }
 531
 532                 handled = 1;
 533                 saa_writel(SAA7134_IRQ_REPORT,report);
 534                 if (irq_debug)
 535                         print_irqstatus(dev,loop,report,status);
 536
 537
 538                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 539                         (report & SAA7134_IRQ_REPORT_INTL))
 540                                 saa7134_irq_video_signalchange(dev);
 541
 542
 543                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 544                     (status & 0x60) == 0)
 545                         saa7134_irq_video_done(dev,status);
 546
 547                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 548                     (status & 0x40) == 0x40)
 549                         saa7134_irq_vbi_done(dev,status);
 550
 551                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 552                     card_has_mpeg(dev))
 553                         saa7134_irq_ts_done(dev,status);
 554
 555                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 556                         switch (dev->has_remote) {
 557                                 case SAA7134_REMOTE_GPIO:
 558                                         if (!dev->remote)
 559                                                 break;
 560                                         if  (dev->remote->mask_keydown & 0x10000) {
 561                                                 saa7134_input_irq(dev);
 562                                         }
 563                                         break;
 564
 565                                 case SAA7134_REMOTE_I2C:
 566                                         break;                  /* FIXME: invoke I2C get_key() */
 567
 568                                 default:                        /* GPIO16 not used by IR remote */
 569                                         break;
 570                         }
 571                 }
 572
 573                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 574                         switch (dev->has_remote) {
 575                                 case SAA7134_REMOTE_GPIO:
 576                                         if (!dev->remote)
 577                                                 break;
 578                                         if ((dev->remote->mask_keydown & 0x40000) ||
 579                                             (dev->remote->mask_keyup & 0x40000)) {
 580                                                 saa7134_input_irq(dev);
 581                                         }
 582                                         break;
 583
 584                                 case SAA7134_REMOTE_I2C:
 585                                         break;                  /* FIXME: invoke I2C get_key() */
 586
 587                                 default:                        /* GPIO18 not used by IR remote */
 588                                         break;
 589                         }
 590                 }
 591         }
 592
 593         if (10 == loop) {
 594                 print_irqstatus(dev,loop,report,status);
 595                 if (report & SAA7134_IRQ_REPORT_PE) {
 596                         /* disable all parity error */
 597                         printk(KERN_WARNING "%s/irq: looping -- "
 598                                "clearing PE (parity error!) enable bit\n",dev->name);
 599                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 600                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 601                         /* disable gpio16 IRQ */
 602                         printk(KERN_WARNING "%s/irq: looping -- "
 603                                "clearing GPIO16 enable bit\n",dev->name);
 604                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
 605                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 606                         /* disable gpio18 IRQs */
 607                         printk(KERN_WARNING "%s/irq: looping -- "
 608                                "clearing GPIO18 enable bit\n",dev->name);
 609                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
 610                 } else {
 611                         /* disable all irqs */
 612                         printk(KERN_WARNING "%s/irq: looping -- "
 613                                "clearing all enable bits\n",dev->name);
 614                         saa_writel(SAA7134_IRQ1,0);
 615                         saa_writel(SAA7134_IRQ2,0);
 616                 }
 617         }
 618
 619  out:
 620         return IRQ_RETVAL(handled);
 621 }
 622
 623 /* ------------------------------------------------------------------ */
 624
 625 /* early init (no i2c, no irq) */
 626
 627 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 628 {
 629         /* RAM FIFO config */
 630         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 631         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 632
 633         /* enable audio + video processing */
 634         saa_writel(SAA7134_MAIN_CTRL,
 635                         SAA7134_MAIN_CTRL_VPLLE |
 636                         SAA7134_MAIN_CTRL_APLLE |
 637                         SAA7134_MAIN_CTRL_EXOSC |
 638                         SAA7134_MAIN_CTRL_EVFE1 |
 639                         SAA7134_MAIN_CTRL_EVFE2 |
 640                         SAA7134_MAIN_CTRL_ESFE  |
 641                         SAA7134_MAIN_CTRL_EBDAC);
 642
 643         /*
 644         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 645         * OSS initialization writes to registers via the audio DSP; these
 646         * writes will fail unless the audio clock has been started.  At worst,
 647         * audio will not work.
 648         */
 649
 650         /* enable peripheral devices */
 651         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 652
 653         /* set vertical line numbering start (vbi needs this) */
 654         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 655
 656         return 0;
 657 }
 658
 659 static int saa7134_hwinit1(struct saa7134_dev *dev)
 660 {
 661         dprintk("hwinit1\n");
 662
 663         saa_writel(SAA7134_IRQ1, 0);
 664         saa_writel(SAA7134_IRQ2, 0);
 665
 666         /* Clear any stale IRQ reports */
 667         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 668
 669         mutex_init(&dev->lock);
 670         spin_lock_init(&dev->slock);
 671
 672         saa7134_track_gpio(dev,"pre-init");
 673         saa7134_video_init1(dev);
 674         saa7134_vbi_init1(dev);
 675         if (card_has_mpeg(dev))
 676                 saa7134_ts_init1(dev);
 677         saa7134_input_init1(dev);
 678
 679         saa7134_hw_enable1(dev);
 680
 681         return 0;
 682 }
 683
 684 /* late init (with i2c + irq) */
 685 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 686 {
 687
 688         unsigned int irq2_mask;
 689
 690         /* enable IRQ's */
 691         irq2_mask =
 692                 SAA7134_IRQ2_INTE_DEC3    |
 693                 SAA7134_IRQ2_INTE_DEC2    |
 694                 SAA7134_IRQ2_INTE_DEC1    |
 695                 SAA7134_IRQ2_INTE_DEC0    |
 696                 SAA7134_IRQ2_INTE_PE      |
 697                 SAA7134_IRQ2_INTE_AR;
 698
 699         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 700                 if (dev->remote->mask_keydown & 0x10000)
 701                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
 702                 else if (dev->remote->mask_keydown & 0x40000)
 703                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
 704                 else if (dev->remote->mask_keyup & 0x40000)
 705                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
 706         }
 707
 708         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 709                 request_module("ir-kbd-i2c");
 710         }
 711
 712         saa_writel(SAA7134_IRQ1, 0);
 713         saa_writel(SAA7134_IRQ2, irq2_mask);
 714
 715         return 0;
 716 }
 717
 718 static int saa7134_hwinit2(struct saa7134_dev *dev)
 719 {
 720
 721         dprintk("hwinit2\n");
 722
 723         saa7134_video_init2(dev);
 724         saa7134_tvaudio_init2(dev);
 725
 726         saa7134_hw_enable2(dev);
 727
 728         return 0;
 729 }
 730
 731
 732 /* shutdown */
 733 static int saa7134_hwfini(struct saa7134_dev *dev)
 734 {
 735         dprintk("hwfini\n");
 736
 737         if (card_has_mpeg(dev))
 738                 saa7134_ts_fini(dev);
 739         saa7134_input_fini(dev);
 740         saa7134_vbi_fini(dev);
 741         saa7134_tvaudio_fini(dev);
 742         return 0;
 743 }
 744
 745 static void __devinit must_configure_manually(void)
 746 {
 747         unsigned int i,p;
 748
 749         printk(KERN_WARNING
 750                "saa7134: <rant>\n"
 751                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 752                "saa7134:  cents for a eeprom, thus your pci board has no\n"
 753                "saa7134:  subsystem ID and I can't identify it automatically\n"
 754                "saa7134: </rant>\n"
 755                "saa7134: I feel better now.  Ok, here are the good news:\n"
 756                "saa7134: You can use the card=<nr> insmod option to specify\n"
 757                "saa7134: which board do you have.  The list:\n");
 758         for (i = 0; i < saa7134_bcount; i++) {
 759                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
 760                        i,saa7134_boards[i].name);
 761                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 762                         if (saa7134_pci_tbl[p].driver_data != i)
 763                                 continue;
 764                         printk(" %04x:%04x",
 765                                saa7134_pci_tbl[p].subvendor,
 766                                saa7134_pci_tbl[p].subdevice);
 767                 }
 768                 printk("\n");
 769         }
 770 }
 771
 772 static struct video_device *vdev_init(struct saa7134_dev *dev,
 773                                       struct video_device *template,
 774                                       char *type)
 775 {
 776         struct video_device *vfd;
 777
 778         vfd = video_device_alloc();
 779         if (NULL == vfd)
 780                 return NULL;
 781         *vfd = *template;
 782         vfd->v4l2_dev  = &dev->v4l2_dev;
 783         vfd->release = video_device_release;
 784         vfd->debug   = video_debug;
 785         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 786                  dev->name, type, saa7134_boards[dev->board].name);
 787         video_set_drvdata(vfd, dev);
 788         return vfd;
 789 }
 790
 791 static void saa7134_unregister_video(struct saa7134_dev *dev)
 792 {
 793         if (dev->video_dev) {
 794                 if (video_is_registered(dev->video_dev))
 795                         video_unregister_device(dev->video_dev);
 796                 else
 797                         video_device_release(dev->video_dev);
 798                 dev->video_dev = NULL;
 799         }
 800         if (dev->vbi_dev) {
 801                 if (video_is_registered(dev->vbi_dev))
 802                         video_unregister_device(dev->vbi_dev);
 803                 else
 804                         video_device_release(dev->vbi_dev);
 805                 dev->vbi_dev = NULL;
 806         }
 807         if (dev->radio_dev) {
 808                 if (video_is_registered(dev->radio_dev))
 809                         video_unregister_device(dev->radio_dev);
 810                 else
 811                         video_device_release(dev->radio_dev);
 812                 dev->radio_dev = NULL;
 813         }
 814 }
 815
 816 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 817                             struct saa7134_dev *dev)
 818 {
 819         int err;
 820
 821         if (NULL != dev->mops)
 822                 return;
 823         if (saa7134_boards[dev->board].mpeg != ops->type)
 824                 return;
 825         err = ops->init(dev);
 826         if (0 != err)
 827                 return;
 828         dev->mops = ops;
 829 }
 830
 831 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 832                             struct saa7134_dev *dev)
 833 {
 834         if (NULL == dev->mops)
 835                 return;
 836         if (dev->mops != ops)
 837                 return;
 838         dev->mops->fini(dev);
 839         dev->mops = NULL;
 840 }
 841
 842 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 843                                      const struct pci_device_id *pci_id)
 844 {
 845         struct saa7134_dev *dev;
 846         struct saa7134_mpeg_ops *mops;
 847         int err;
 848
 849         if (saa7134_devcount == SAA7134_MAXBOARDS)
 850                 return -ENOMEM;
 851
 852         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 853         if (NULL == dev)
 854                 return -ENOMEM;
 855
 856         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 857         if (err)
 858                 goto fail0;
 859
 860         /* pci init */
 861         dev->pci = pci_dev;
 862         if (pci_enable_device(pci_dev)) {
 863                 err = -EIO;
 864                 goto fail1;
 865         }
 866
 867         dev->nr = saa7134_devcount;
 868         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 869
 870         /* pci quirks */
 871         if (pci_pci_problems) {
 872                 if (pci_pci_problems & PCIPCI_TRITON)
 873                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
 874                 if (pci_pci_problems & PCIPCI_NATOMA)
 875                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
 876                 if (pci_pci_problems & PCIPCI_VIAETBF)
 877                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 878                 if (pci_pci_problems & PCIPCI_VSFX)
 879                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
 880 #ifdef PCIPCI_ALIMAGIK
 881                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 882                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 883                                dev->name);
 884                         latency = 0x0A;
 885                 }
 886 #endif
 887                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 888                         printk(KERN_INFO "%s: quirk: this driver and your "
 889                                         "chipset may not work together"
 890                                         " in overlay mode.\n",dev->name);
 891                         if (!saa7134_no_overlay) {
 892                                 printk(KERN_INFO "%s: quirk: overlay "
 893                                                 "mode will be disabled.\n",
 894                                                 dev->name);
 895                                 saa7134_no_overlay = 1;
 896                         } else {
 897                                 printk(KERN_INFO "%s: quirk: overlay "
 898                                                 "mode will be forced. Use this"
 899                                                 " option at your own risk.\n",
 900                                                 dev->name);
 901                         }
 902                 }
 903         }
 904         if (UNSET != latency) {
 905                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
 906                        dev->name,latency);
 907                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 908         }
 909
 910         /* print pci info */
 911         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
 912         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 913         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
 914                "latency: %d, mmio: 0x%llx\n", dev->name,
 915                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 916                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 917         pci_set_master(pci_dev);
 918         if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
 919                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
 920                 err = -EIO;
 921                 goto fail1;
 922         }
 923
 924         /* board config */
 925         dev->board = pci_id->driver_data;
 926         if (card[dev->nr] >= 0 &&
 927             card[dev->nr] < saa7134_bcount)
 928                 dev->board = card[dev->nr];
 929         if (SAA7134_BOARD_NOAUTO == dev->board) {
 930                 must_configure_manually();
 931                 dev->board = SAA7134_BOARD_UNKNOWN;
 932         }
 933         dev->autodetected = card[dev->nr] != dev->board;
 934         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 935         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 936         dev->radio_type = saa7134_boards[dev->board].radio_type;
 937         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 938         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 939         if (UNSET != tuner[dev->nr])
 940                 dev->tuner_type = tuner[dev->nr];
 941         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 942                 dev->name,pci_dev->subsystem_vendor,
 943                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 944                 dev->board, dev->autodetected ?
 945                 "autodetected" : "insmod option");
 946
 947         /* get mmio */
 948         if (!request_mem_region(pci_resource_start(pci_dev,0),
 949                                 pci_resource_len(pci_dev,0),
 950                                 dev->name)) {
 951                 err = -EBUSY;
 952                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
 953                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 954                 goto fail1;
 955         }
 956         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 957                              pci_resource_len(pci_dev, 0));
 958         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 959         if (NULL == dev->lmmio) {
 960                 err = -EIO;
 961                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
 962                        dev->name);
 963                 goto fail2;
 964         }
 965
 966         /* initialize hardware #1 */
 967         saa7134_board_init1(dev);
 968         saa7134_hwinit1(dev);
 969
 970         /* get irq */
 971         err = request_irq(pci_dev->irq, saa7134_irq,
 972                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
 973         if (err < 0) {
 974                 printk(KERN_ERR "%s: can't get IRQ %d\n",
 975                        dev->name,pci_dev->irq);
 976                 goto fail3;
 977         }
 978
 979         /* wait a bit, register i2c bus */
 980         msleep(100);
 981         saa7134_i2c_register(dev);
 982         saa7134_board_init2(dev);
 983
 984         saa7134_hwinit2(dev);
 985
 986         /* load i2c helpers */
 987         if (card_is_empress(dev)) {
 988                 struct v4l2_subdev *sd =
 989                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
 990                                 "saa6752hs", "saa6752hs",
 991                                 saa7134_boards[dev->board].empress_addr, NULL);
 992
 993                 if (sd)
 994                         sd->grp_id = GRP_EMPRESS;
 995         }
 996
 997         if (saa7134_boards[dev->board].rds_addr) {
 998                 struct v4l2_subdev *sd;
 999
1000                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1001                                 &dev->i2c_adap, "saa6588", "saa6588",
1002                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1003                 if (sd) {
1004                         printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1005                         dev->has_rds = 1;
1006                 }
1007         }
1008
1009         request_submodules(dev);
1010
1011         v4l2_prio_init(&dev->prio);
1012
1013         mutex_lock(&saa7134_devlist_lock);
1014         list_for_each_entry(mops, &mops_list, next)
1015                 mpeg_ops_attach(mops, dev);
1016         list_add_tail(&dev->devlist, &saa7134_devlist);
1017         mutex_unlock(&saa7134_devlist_lock);
1018
1019         /* check for signal */
1020         saa7134_irq_video_signalchange(dev);
1021
1022         if (TUNER_ABSENT != dev->tuner_type)
1023                 saa_call_all(dev, core, s_power, 0);
1024
1025         /* register v4l devices */
1026         if (saa7134_no_overlay > 0)
1027                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1028
1029         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1030         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1031                                     video_nr[dev->nr]);
1032         if (err < 0) {
1033                 printk(KERN_INFO "%s: can't register video device\n",
1034                        dev->name);
1035                 goto fail4;
1036         }
1037         printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1038                dev->name, video_device_node_name(dev->video_dev));
1039
1040         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1041
1042         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1043                                     vbi_nr[dev->nr]);
1044         if (err < 0)
1045                 goto fail4;
1046         printk(KERN_INFO "%s: registered device %s\n",
1047                dev->name, video_device_node_name(dev->vbi_dev));
1048
1049         if (card_has_radio(dev)) {
1050                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1051                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1052                                             radio_nr[dev->nr]);
1053                 if (err < 0)
1054                         goto fail4;
1055                 printk(KERN_INFO "%s: registered device %s\n",
1056                        dev->name, video_device_node_name(dev->radio_dev));
1057         }
1058
1059         /* everything worked */
1060         saa7134_devcount++;
1061
1062         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1063                 saa7134_dmasound_init(dev);
1064
1065         return 0;
1066
1067  fail4:
1068         saa7134_unregister_video(dev);
1069         saa7134_i2c_unregister(dev);
1070         free_irq(pci_dev->irq, dev);
1071  fail3:
1072         saa7134_hwfini(dev);
1073         iounmap(dev->lmmio);
1074  fail2:
1075         release_mem_region(pci_resource_start(pci_dev,0),
1076                            pci_resource_len(pci_dev,0));
1077  fail1:
1078         v4l2_device_unregister(&dev->v4l2_dev);
1079  fail0:
1080         kfree(dev);
1081         return err;
1082 }
1083
1084 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1085 {
1086         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1087         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1088         struct saa7134_mpeg_ops *mops;
1089
1090         /* Release DMA sound modules if present */
1091         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1092                 saa7134_dmasound_exit(dev);
1093         }
1094
1095         /* debugging ... */
1096         if (irq_debug) {
1097                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1098                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1099                 print_irqstatus(dev,42,report,status);
1100         }
1101
1102         /* disable peripheral devices */
1103         saa_writeb(SAA7134_SPECIAL_MODE,0);
1104
1105         /* shutdown hardware */
1106         saa_writel(SAA7134_IRQ1,0);
1107         saa_writel(SAA7134_IRQ2,0);
1108         saa_writel(SAA7134_MAIN_CTRL,0);
1109
1110         /* shutdown subsystems */
1111         saa7134_hwfini(dev);
1112
1113         /* unregister */
1114         mutex_lock(&saa7134_devlist_lock);
1115         list_del(&dev->devlist);
1116         list_for_each_entry(mops, &mops_list, next)
1117                 mpeg_ops_detach(mops, dev);
1118         mutex_unlock(&saa7134_devlist_lock);
1119         saa7134_devcount--;
1120
1121         saa7134_i2c_unregister(dev);
1122         saa7134_unregister_video(dev);
1123
1124
1125         /* the DMA sound modules should be unloaded before reaching
1126            this, but just in case they are still present... */
1127         if (dev->dmasound.priv_data != NULL) {
1128                 free_irq(pci_dev->irq, &dev->dmasound);
1129                 dev->dmasound.priv_data = NULL;
1130         }
1131
1132
1133         /* release resources */
1134         free_irq(pci_dev->irq, dev);
1135         iounmap(dev->lmmio);
1136         release_mem_region(pci_resource_start(pci_dev,0),
1137                            pci_resource_len(pci_dev,0));
1138
1139
1140         v4l2_device_unregister(&dev->v4l2_dev);
1141
1142         /* free memory */
1143         kfree(dev);
1144 }
1145
1146 #ifdef CONFIG_PM
1147
1148 /* resends a current buffer in queue after resume */
1149 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1150                                   struct saa7134_dmaqueue *q)
1151 {
1152         struct saa7134_buf *buf, *next;
1153
1154         assert_spin_locked(&dev->slock);
1155
1156         buf  = q->curr;
1157         next = buf;
1158         dprintk("buffer_requeue\n");
1159
1160         if (!buf)
1161                 return 0;
1162
1163         dprintk("buffer_requeue : resending active buffers \n");
1164
1165         if (!list_empty(&q->queue))
1166                 next = list_entry(q->queue.next, struct saa7134_buf,
1167                                           vb.queue);
1168         buf->activate(dev, buf, next);
1169
1170         return 0;
1171 }
1172
1173 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1174 {
1175         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1176         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1177
1178         /* disable overlay - apps should enable it explicitly on resume*/
1179         dev->ovenable = 0;
1180
1181         /* Disable interrupts, DMA, and rest of the chip*/
1182         saa_writel(SAA7134_IRQ1, 0);
1183         saa_writel(SAA7134_IRQ2, 0);
1184         saa_writel(SAA7134_MAIN_CTRL, 0);
1185
1186         dev->insuspend = 1;
1187         synchronize_irq(pci_dev->irq);
1188
1189         /* ACK interrupts once more, just in case,
1190                 since the IRQ handler won't ack them anymore*/
1191
1192         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1193
1194         /* Disable timeout timers - if we have active buffers, we will
1195            fill them on resume*/
1196
1197         del_timer(&dev->video_q.timeout);
1198         del_timer(&dev->vbi_q.timeout);
1199         del_timer(&dev->ts_q.timeout);
1200
1201         if (dev->remote)
1202                 saa7134_ir_stop(dev);
1203
1204         pci_save_state(pci_dev);
1205         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1206
1207         return 0;
1208 }
1209
1210 static int saa7134_resume(struct pci_dev *pci_dev)
1211 {
1212         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1213         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1214         unsigned long flags;
1215
1216         pci_set_power_state(pci_dev, PCI_D0);
1217         pci_restore_state(pci_dev);
1218
1219         /* Do things that are done in saa7134_initdev ,
1220                 except of initializing memory structures.*/
1221
1222         saa7134_board_init1(dev);
1223
1224         /* saa7134_hwinit1 */
1225         if (saa7134_boards[dev->board].video_out)
1226                 saa7134_videoport_init(dev);
1227         if (card_has_mpeg(dev))
1228                 saa7134_ts_init_hw(dev);
1229         if (dev->remote)
1230                 saa7134_ir_start(dev, dev->remote);
1231         saa7134_hw_enable1(dev);
1232
1233         msleep(100);
1234
1235         saa7134_board_init2(dev);
1236
1237         /*saa7134_hwinit2*/
1238         saa7134_set_tvnorm_hw(dev);
1239         saa7134_tvaudio_setmute(dev);
1240         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1241         saa7134_tvaudio_init(dev);
1242         saa7134_tvaudio_do_scan(dev);
1243         saa7134_enable_i2s(dev);
1244         saa7134_hw_enable2(dev);
1245
1246         saa7134_irq_video_signalchange(dev);
1247
1248         /*resume unfinished buffer(s)*/
1249         spin_lock_irqsave(&dev->slock, flags);
1250         saa7134_buffer_requeue(dev, &dev->video_q);
1251         saa7134_buffer_requeue(dev, &dev->vbi_q);
1252         saa7134_buffer_requeue(dev, &dev->ts_q);
1253
1254         /* FIXME: Disable DMA audio sound - temporary till proper support
1255                   is implemented*/
1256
1257         dev->dmasound.dma_running = 0;
1258
1259         /* start DMA now*/
1260         dev->insuspend = 0;
1261         smp_wmb();
1262         saa7134_set_dmabits(dev);
1263         spin_unlock_irqrestore(&dev->slock, flags);
1264
1265         return 0;
1266 }
1267 #endif
1268
1269 /* ----------------------------------------------------------- */
1270
1271 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1272 {
1273         struct saa7134_dev *dev;
1274
1275         mutex_lock(&saa7134_devlist_lock);
1276         list_for_each_entry(dev, &saa7134_devlist, devlist)
1277                 mpeg_ops_attach(ops, dev);
1278         list_add_tail(&ops->next,&mops_list);
1279         mutex_unlock(&saa7134_devlist_lock);
1280         return 0;
1281 }
1282
1283 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1284 {
1285         struct saa7134_dev *dev;
1286
1287         mutex_lock(&saa7134_devlist_lock);
1288         list_del(&ops->next);
1289         list_for_each_entry(dev, &saa7134_devlist, devlist)
1290                 mpeg_ops_detach(ops, dev);
1291         mutex_unlock(&saa7134_devlist_lock);
1292 }
1293
1294 EXPORT_SYMBOL(saa7134_ts_register);
1295 EXPORT_SYMBOL(saa7134_ts_unregister);
1296
1297 /* ----------------------------------------------------------- */
1298
1299 static struct pci_driver saa7134_pci_driver = {
1300         .name     = "saa7134",
1301         .id_table = saa7134_pci_tbl,
1302         .probe    = saa7134_initdev,
1303         .remove   = __devexit_p(saa7134_finidev),
1304 #ifdef CONFIG_PM
1305         .suspend  = saa7134_suspend,
1306         .resume   = saa7134_resume
1307 #endif
1308 };
1309
1310 static int __init saa7134_init(void)
1311 {
1312         INIT_LIST_HEAD(&saa7134_devlist);
1313         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1314                (SAA7134_VERSION_CODE >> 16) & 0xff,
1315                (SAA7134_VERSION_CODE >>  8) & 0xff,
1316                SAA7134_VERSION_CODE & 0xff);
1317 #ifdef SNAPSHOT
1318         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1319                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1320 #endif
1321         return pci_register_driver(&saa7134_pci_driver);
1322 }
1323
1324 static void __exit saa7134_fini(void)
1325 {
1326         pci_unregister_driver(&saa7134_pci_driver);
1327 }
1328
1329 module_init(saa7134_init);
1330 module_exit(saa7134_fini);
1331
1332 /* ----------------------------------------------------------- */
1333
1334 EXPORT_SYMBOL(saa7134_set_gpio);
1335 EXPORT_SYMBOL(saa7134_boards);
1336
1337 /* ----------------- for the DMA sound modules --------------- */
1338
1339 EXPORT_SYMBOL(saa7134_dmasound_init);
1340 EXPORT_SYMBOL(saa7134_dmasound_exit);
1341 EXPORT_SYMBOL(saa7134_pgtable_free);
1342 EXPORT_SYMBOL(saa7134_pgtable_build);
1343 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1344 EXPORT_SYMBOL(saa7134_set_dmabits);
1345
1346 /* ----------------------------------------------------------- */
1347 /*
1348  * Local variables:
1349  * c-basic-offset: 8
1350  * End:
1351  */