drivers/media/pci/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
  19 #include "saa7134.h"
  20 #include "saa7134-reg.h"
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/kernel.h>
  26 #include <linux/slab.h>
  27 #include <linux/kmod.h>
  28 #include <linux/sound.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <linux/mutex.h>
  32 #include <linux/dma-mapping.h>
  33 #include <linux/pm.h>
  34
  35 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  36 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  37 MODULE_LICENSE("GPL");
  38 MODULE_VERSION(SAA7134_VERSION);
  39
  40
  41 /* ------------------------------------------------------------------ */
  42
  43 static unsigned int irq_debug;
  44 module_param(irq_debug, int, 0644);
  45 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  46
  47 static unsigned int core_debug;
  48 module_param(core_debug, int, 0644);
  49 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  50
  51 static unsigned int gpio_tracking;
  52 module_param(gpio_tracking, int, 0644);
  53 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  54
  55 static unsigned int alsa = 1;
  56 module_param(alsa, int, 0644);
  57 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  58
  59 static unsigned int latency = UNSET;
  60 module_param(latency, int, 0444);
  61 MODULE_PARM_DESC(latency,"pci latency timer");
  62
  63 int saa7134_no_overlay=-1;
  64 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  65 MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
  66
  67 bool saa7134_userptr;
  68 module_param(saa7134_userptr, bool, 0644);
  69 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
  70
  71 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  72 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  73 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  74 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  75 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  76
  77
  78 module_param_array(video_nr, int, NULL, 0444);
  79 module_param_array(vbi_nr,   int, NULL, 0444);
  80 module_param_array(radio_nr, int, NULL, 0444);
  81 module_param_array(tuner,    int, NULL, 0444);
  82 module_param_array(card,     int, NULL, 0444);
  83
  84 MODULE_PARM_DESC(video_nr, "video device number");
  85 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  86 MODULE_PARM_DESC(radio_nr, "radio device number");
  87 MODULE_PARM_DESC(tuner,    "tuner type");
  88 MODULE_PARM_DESC(card,     "card type");
  89
  90 DEFINE_MUTEX(saa7134_devlist_lock);
  91 EXPORT_SYMBOL(saa7134_devlist_lock);
  92 LIST_HEAD(saa7134_devlist);
  93 EXPORT_SYMBOL(saa7134_devlist);
  94 static LIST_HEAD(mops_list);
  95 static unsigned int saa7134_devcount;
  96
  97 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  98 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  99
 100 #define core_dbg(fmt, arg...) do { \
 101         if (core_debug) \
 102                 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
 103         } while (0)
 104
 105 #define irq_dbg(level, fmt, arg...)  do {\
 106         if (irq_debug > level) \
 107                 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
 108         } while (0)
 109
 110 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
 111 {
 112         unsigned long mode,status;
 113
 114         if (!gpio_tracking)
 115                 return;
 116         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 117         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 118         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 119         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 120         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 121         core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 122                dev->name, mode, (~mode) & status, mode & status, msg);
 123 }
 124
 125 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 126 {
 127         u32 index, bitval;
 128
 129         index = 1 << bit_no;
 130         switch (value) {
 131         case 0: /* static value */
 132         case 1:
 133                 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
 134                 /* turn sync mode off if necessary */
 135                 if (index & 0x00c00000)
 136                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 137                 if (value)
 138                         bitval = index;
 139                 else
 140                         bitval = 0;
 141                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 142                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 143                 break;
 144         case 3: /* tristate */
 145                 core_dbg("setting GPIO%d to tristate\n", bit_no);
 146                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 147                 break;
 148         }
 149 }
 150
 151 /* ------------------------------------------------------------------ */
 152
 153
 154 /* ----------------------------------------------------------- */
 155 /* delayed request_module                                      */
 156
 157 #if defined(CONFIG_MODULES) && defined(MODULE)
 158
 159 static void request_module_async(struct work_struct *work){
 160         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 161         if (card_is_empress(dev))
 162                 request_module("saa7134-empress");
 163         if (card_is_dvb(dev))
 164                 request_module("saa7134-dvb");
 165         if (card_is_go7007(dev))
 166                 request_module("saa7134-go7007");
 167         if (alsa) {
 168                 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 169                         request_module("saa7134-alsa");
 170         }
 171 }
 172
 173 static void request_submodules(struct saa7134_dev *dev)
 174 {
 175         INIT_WORK(&dev->request_module_wk, request_module_async);
 176         schedule_work(&dev->request_module_wk);
 177 }
 178
 179 static void flush_request_submodules(struct saa7134_dev *dev)
 180 {
 181         flush_work(&dev->request_module_wk);
 182 }
 183
 184 #else
 185 #define request_submodules(dev)
 186 #define flush_request_submodules(dev)
 187 #endif /* CONFIG_MODULES */
 188
 189 /* ------------------------------------------------------------------ */
 190
 191 /* nr of (saa7134-)pages for the given buffer size */
 192 static int saa7134_buffer_pages(int size)
 193 {
 194         size  = PAGE_ALIGN(size);
 195         size += PAGE_SIZE; /* for non-page-aligned buffers */
 196         size /= 4096;
 197         return size;
 198 }
 199
 200 /* calc max # of buffers from size (must not exceed the 4MB virtual
 201  * address space per DMA channel) */
 202 int saa7134_buffer_count(unsigned int size, unsigned int count)
 203 {
 204         unsigned int maxcount;
 205
 206         maxcount = 1024 / saa7134_buffer_pages(size);
 207         if (count > maxcount)
 208                 count = maxcount;
 209         return count;
 210 }
 211
 212 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 213 {
 214         return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
 215                         * buf->vb2.vb2_buf.index;
 216 }
 217
 218 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 219 {
 220         unsigned long base;
 221         struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
 222
 223         base  = saa7134_buffer_startpage(buf) * 4096;
 224         base += dma->sgl[0].offset;
 225         return base;
 226 }
 227
 228 /* ------------------------------------------------------------------ */
 229
 230 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 231 {
 232         __le32       *cpu;
 233         dma_addr_t   dma_addr = 0;
 234
 235         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 236         if (NULL == cpu)
 237                 return -ENOMEM;
 238         pt->size = SAA7134_PGTABLE_SIZE;
 239         pt->cpu  = cpu;
 240         pt->dma  = dma_addr;
 241         return 0;
 242 }
 243
 244 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 245                           struct scatterlist *list, unsigned int length,
 246                           unsigned int startpage)
 247 {
 248         __le32        *ptr;
 249         unsigned int  i, p;
 250
 251         BUG_ON(NULL == pt || NULL == pt->cpu);
 252
 253         ptr = pt->cpu + startpage;
 254         for (i = 0; i < length; i++, list = sg_next(list)) {
 255                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 256                         *ptr = cpu_to_le32(sg_dma_address(list) +
 257                                                 list->offset + p * 4096);
 258         }
 259         return 0;
 260 }
 261
 262 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 263 {
 264         if (NULL == pt->cpu)
 265                 return;
 266         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 267         pt->cpu = NULL;
 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         unsigned long flags;
 278
 279         spin_lock_irqsave(&dev->slock, flags);
 280         core_dbg("buffer_queue %p\n", buf);
 281         if (NULL == q->curr) {
 282                 if (!q->need_two) {
 283                         q->curr = buf;
 284                         buf->activate(dev, buf, NULL);
 285                 } else if (list_empty(&q->queue)) {
 286                         list_add_tail(&buf->entry, &q->queue);
 287                 } else {
 288                         next = list_entry(q->queue.next, struct saa7134_buf,
 289                                           entry);
 290                         q->curr = buf;
 291                         buf->activate(dev, buf, next);
 292                 }
 293         } else {
 294                 list_add_tail(&buf->entry, &q->queue);
 295         }
 296         spin_unlock_irqrestore(&dev->slock, flags);
 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         core_dbg("buffer_finish %p\n", q->curr);
 305
 306         /* finish current buffer */
 307         q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
 308         q->curr->vb2.sequence = q->seq_nr++;
 309         vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
 310         q->curr = NULL;
 311 }
 312
 313 void saa7134_buffer_next(struct saa7134_dev *dev,
 314                          struct saa7134_dmaqueue *q)
 315 {
 316         struct saa7134_buf *buf,*next = NULL;
 317
 318         assert_spin_locked(&dev->slock);
 319         BUG_ON(NULL != q->curr);
 320
 321         if (!list_empty(&q->queue)) {
 322                 /* activate next one from queue */
 323                 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
 324                 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
 325                         buf, q->queue.prev, q->queue.next);
 326                 list_del(&buf->entry);
 327                 if (!list_empty(&q->queue))
 328                         next = list_entry(q->queue.next, struct saa7134_buf, entry);
 329                 q->curr = buf;
 330                 buf->activate(dev, buf, next);
 331                 core_dbg("buffer_next #2 prev=%p/next=%p\n",
 332                         q->queue.prev, q->queue.next);
 333         } else {
 334                 /* nothing to do -- just stop DMA */
 335                 core_dbg("buffer_next %p\n", NULL);
 336                 saa7134_set_dmabits(dev);
 337                 del_timer(&q->timeout);
 338         }
 339 }
 340
 341 void saa7134_buffer_timeout(struct timer_list *t)
 342 {
 343         struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
 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                 core_dbg("timeout on %p\n", q->curr);
 358                 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
 359         }
 360         saa7134_buffer_next(dev, q);
 361         spin_unlock_irqrestore(&dev->slock, flags);
 362 }
 363
 364 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
 365 {
 366         unsigned long flags;
 367         struct list_head *pos, *n;
 368         struct saa7134_buf *tmp;
 369
 370         spin_lock_irqsave(&dev->slock, flags);
 371         if (!list_empty(&q->queue)) {
 372                 list_for_each_safe(pos, n, &q->queue) {
 373                          tmp = list_entry(pos, struct saa7134_buf, entry);
 374                          vb2_buffer_done(&tmp->vb2.vb2_buf,
 375                                          VB2_BUF_STATE_ERROR);
 376                          list_del(pos);
 377                          tmp = NULL;
 378                 }
 379         }
 380         spin_unlock_irqrestore(&dev->slock, flags);
 381         saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
 382 }
 383 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 384
 385 /* ------------------------------------------------------------------ */
 386
 387 int saa7134_set_dmabits(struct saa7134_dev *dev)
 388 {
 389         u32 split, task=0, ctrl=0, irq=0;
 390         enum v4l2_field cap = V4L2_FIELD_ANY;
 391         enum v4l2_field ov  = V4L2_FIELD_ANY;
 392
 393         assert_spin_locked(&dev->slock);
 394
 395         if (dev->insuspend)
 396                 return 0;
 397
 398         /* video capture -- dma 0 + video task A */
 399         if (dev->video_q.curr) {
 400                 task |= 0x01;
 401                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 402                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 403                         SAA7134_IRQ1_INTE_RA0_0;
 404                 cap = dev->field;
 405         }
 406
 407         /* video capture -- dma 1+2 (planar modes) */
 408         if (dev->video_q.curr && dev->fmt->planar) {
 409                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 410                         SAA7134_MAIN_CTRL_TE5;
 411         }
 412
 413         /* screen overlay -- dma 0 + video task B */
 414         if (dev->ovenable) {
 415                 task |= 0x10;
 416                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 417                 ov = dev->ovfield;
 418         }
 419
 420         /* vbi capture -- dma 0 + vbi task A+B */
 421         if (dev->vbi_q.curr) {
 422                 task |= 0x22;
 423                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 424                         SAA7134_MAIN_CTRL_TE3;
 425                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 426                         SAA7134_IRQ1_INTE_RA0_6 |
 427                         SAA7134_IRQ1_INTE_RA0_5 |
 428                         SAA7134_IRQ1_INTE_RA0_4;
 429         }
 430
 431         /* audio capture -- dma 3 */
 432         if (dev->dmasound.dma_running) {
 433                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 434                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 435                         SAA7134_IRQ1_INTE_RA3_0;
 436         }
 437
 438         /* TS capture -- dma 5 */
 439         if (dev->ts_q.curr) {
 440                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 441                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 442                         SAA7134_IRQ1_INTE_RA2_0;
 443         }
 444
 445         /* set task conditions + field handling */
 446         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 447                 /* default config -- use full frames */
 448                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 449                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 450                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 451                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 452                 split = 0;
 453         } else {
 454                 /* split fields between tasks */
 455                 if (V4L2_FIELD_TOP == cap) {
 456                         /* odd A, even B, repeat */
 457                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 458                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 459                 } else {
 460                         /* odd B, even A, repeat */
 461                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 462                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 463                 }
 464                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 465                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 466                 split = 1;
 467         }
 468
 469         /* irqs */
 470         saa_writeb(SAA7134_REGION_ENABLE, task);
 471         saa_writel(SAA7134_IRQ1,          irq);
 472         saa_andorl(SAA7134_MAIN_CTRL,
 473                    SAA7134_MAIN_CTRL_TE0 |
 474                    SAA7134_MAIN_CTRL_TE1 |
 475                    SAA7134_MAIN_CTRL_TE2 |
 476                    SAA7134_MAIN_CTRL_TE3 |
 477                    SAA7134_MAIN_CTRL_TE4 |
 478                    SAA7134_MAIN_CTRL_TE5 |
 479                    SAA7134_MAIN_CTRL_TE6,
 480                    ctrl);
 481         core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 482                 task, ctrl, irq, split ? "no" : "yes");
 483
 484         return 0;
 485 }
 486
 487 /* ------------------------------------------------------------------ */
 488 /* IRQ handler + helpers                                              */
 489
 490 static char *irqbits[] = {
 491         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 492         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 493         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 494         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 495 };
 496 #define IRQBITS ARRAY_SIZE(irqbits)
 497
 498 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 499                             unsigned long report, unsigned long status)
 500 {
 501         unsigned int i;
 502
 503         irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 504                 loop, jiffies, report, status);
 505         for (i = 0; i < IRQBITS; i++) {
 506                 if (!(report & (1 << i)))
 507                         continue;
 508                 pr_cont(" %s", irqbits[i]);
 509         }
 510         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 511                 pr_cont(" | RA0=%s,%s,%s,%ld",
 512                         (status & 0x40) ? "vbi"  : "video",
 513                         (status & 0x20) ? "b"    : "a",
 514                         (status & 0x10) ? "odd"  : "even",
 515                         (status & 0x0f));
 516         }
 517         pr_cont("\n");
 518 }
 519
 520 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 521 {
 522         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 523         unsigned long report,status;
 524         int loop, handled = 0;
 525
 526         if (dev->insuspend)
 527                 goto out;
 528
 529         for (loop = 0; loop < 10; loop++) {
 530                 report = saa_readl(SAA7134_IRQ_REPORT);
 531                 status = saa_readl(SAA7134_IRQ_STATUS);
 532
 533                 /* If dmasound support is active and we get a sound report,
 534                  * mask out the report and let the saa7134-alsa module deal
 535                  * with it */
 536                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 537                         (dev->dmasound.priv_data != NULL) )
 538                 {
 539                         irq_dbg(2, "preserving DMA sound interrupt\n");
 540                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 541                 }
 542
 543                 if (0 == report) {
 544                         irq_dbg(2, "no (more) work\n");
 545                         goto out;
 546                 }
 547
 548                 handled = 1;
 549                 saa_writel(SAA7134_IRQ_REPORT,report);
 550                 if (irq_debug)
 551                         print_irqstatus(dev,loop,report,status);
 552
 553
 554                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 555                         (report & SAA7134_IRQ_REPORT_INTL))
 556                                 saa7134_irq_video_signalchange(dev);
 557
 558
 559                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 560                     (status & 0x60) == 0)
 561                         saa7134_irq_video_done(dev,status);
 562
 563                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 564                     (status & 0x40) == 0x40)
 565                         saa7134_irq_vbi_done(dev,status);
 566
 567                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 568                     card_has_mpeg(dev)) {
 569                         if (dev->mops->irq_ts_done != NULL)
 570                                 dev->mops->irq_ts_done(dev, status);
 571                         else
 572                                 saa7134_irq_ts_done(dev, status);
 573                 }
 574
 575                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 576                         switch (dev->has_remote) {
 577                                 case SAA7134_REMOTE_GPIO:
 578                                         if (!dev->remote)
 579                                                 break;
 580                                         if  (dev->remote->mask_keydown & 0x10000) {
 581                                                 saa7134_input_irq(dev);
 582                                         }
 583                                         break;
 584
 585                                 case SAA7134_REMOTE_I2C:
 586                                         break;                  /* FIXME: invoke I2C get_key() */
 587
 588                                 default:                        /* GPIO16 not used by IR remote */
 589                                         break;
 590                         }
 591                 }
 592
 593                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 594                         switch (dev->has_remote) {
 595                                 case SAA7134_REMOTE_GPIO:
 596                                         if (!dev->remote)
 597                                                 break;
 598                                         if ((dev->remote->mask_keydown & 0x40000) ||
 599                                             (dev->remote->mask_keyup & 0x40000)) {
 600                                                 saa7134_input_irq(dev);
 601                                         }
 602                                         break;
 603
 604                                 case SAA7134_REMOTE_I2C:
 605                                         break;                  /* FIXME: invoke I2C get_key() */
 606
 607                                 default:                        /* GPIO18 not used by IR remote */
 608                                         break;
 609                         }
 610                 }
 611         }
 612
 613         if (10 == loop) {
 614                 print_irqstatus(dev,loop,report,status);
 615                 if (report & SAA7134_IRQ_REPORT_PE) {
 616                         /* disable all parity error */
 617                         pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
 618                                 dev->name);
 619                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 620                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 621                         /* disable gpio16 IRQ */
 622                         pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
 623                                 dev->name);
 624                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 625                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 626                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 627                         /* disable gpio18 IRQs */
 628                         pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
 629                                 dev->name);
 630                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 631                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 632                 } else {
 633                         /* disable all irqs */
 634                         pr_warn("%s/irq: looping -- clearing all enable bits\n",
 635                                 dev->name);
 636                         saa_writel(SAA7134_IRQ1,0);
 637                         saa_writel(SAA7134_IRQ2,0);
 638                 }
 639         }
 640
 641  out:
 642         return IRQ_RETVAL(handled);
 643 }
 644
 645 /* ------------------------------------------------------------------ */
 646
 647 /* early init (no i2c, no irq) */
 648
 649 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 650 {
 651         /* RAM FIFO config */
 652         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 653         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 654
 655         /* enable audio + video processing */
 656         saa_writel(SAA7134_MAIN_CTRL,
 657                         SAA7134_MAIN_CTRL_VPLLE |
 658                         SAA7134_MAIN_CTRL_APLLE |
 659                         SAA7134_MAIN_CTRL_EXOSC |
 660                         SAA7134_MAIN_CTRL_EVFE1 |
 661                         SAA7134_MAIN_CTRL_EVFE2 |
 662                         SAA7134_MAIN_CTRL_ESFE  |
 663                         SAA7134_MAIN_CTRL_EBDAC);
 664
 665         /*
 666         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 667         * OSS initialization writes to registers via the audio DSP; these
 668         * writes will fail unless the audio clock has been started.  At worst,
 669         * audio will not work.
 670         */
 671
 672         /* enable peripheral devices */
 673         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 674
 675         /* set vertical line numbering start (vbi needs this) */
 676         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 677
 678         return 0;
 679 }
 680
 681 static int saa7134_hwinit1(struct saa7134_dev *dev)
 682 {
 683         core_dbg("hwinit1\n");
 684
 685         saa_writel(SAA7134_IRQ1, 0);
 686         saa_writel(SAA7134_IRQ2, 0);
 687
 688         /* Clear any stale IRQ reports */
 689         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 690
 691         mutex_init(&dev->lock);
 692         spin_lock_init(&dev->slock);
 693
 694         saa7134_track_gpio(dev,"pre-init");
 695         saa7134_video_init1(dev);
 696         saa7134_vbi_init1(dev);
 697         if (card_has_mpeg(dev))
 698                 saa7134_ts_init1(dev);
 699         saa7134_input_init1(dev);
 700
 701         saa7134_hw_enable1(dev);
 702
 703         return 0;
 704 }
 705
 706 /* late init (with i2c + irq) */
 707 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 708 {
 709
 710         unsigned int irq2_mask;
 711
 712         /* enable IRQ's */
 713         irq2_mask =
 714                 SAA7134_IRQ2_INTE_DEC3    |
 715                 SAA7134_IRQ2_INTE_DEC2    |
 716                 SAA7134_IRQ2_INTE_DEC1    |
 717                 SAA7134_IRQ2_INTE_DEC0    |
 718                 SAA7134_IRQ2_INTE_PE      |
 719                 SAA7134_IRQ2_INTE_AR;
 720
 721         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 722                 if (dev->remote->mask_keydown & 0x10000)
 723                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 724                 else {          /* Allow enabling both IRQ edge triggers */
 725                         if (dev->remote->mask_keydown & 0x40000)
 726                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 727                         if (dev->remote->mask_keyup & 0x40000)
 728                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 729                 }
 730         }
 731
 732         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 733                 request_module("ir-kbd-i2c");
 734         }
 735
 736         saa_writel(SAA7134_IRQ1, 0);
 737         saa_writel(SAA7134_IRQ2, irq2_mask);
 738
 739         return 0;
 740 }
 741
 742 static int saa7134_hwinit2(struct saa7134_dev *dev)
 743 {
 744
 745         core_dbg("hwinit2\n");
 746
 747         saa7134_video_init2(dev);
 748         saa7134_tvaudio_init2(dev);
 749
 750         saa7134_hw_enable2(dev);
 751
 752         return 0;
 753 }
 754
 755
 756 /* shutdown */
 757 static int saa7134_hwfini(struct saa7134_dev *dev)
 758 {
 759         core_dbg("hwfini\n");
 760
 761         if (card_has_mpeg(dev))
 762                 saa7134_ts_fini(dev);
 763         saa7134_input_fini(dev);
 764         saa7134_vbi_fini(dev);
 765         saa7134_tvaudio_fini(dev);
 766         saa7134_video_fini(dev);
 767         return 0;
 768 }
 769
 770 static void must_configure_manually(int has_eeprom)
 771 {
 772         unsigned int i,p;
 773
 774         if (!has_eeprom)
 775                 pr_warn("saa7134: <rant>\n"
 776                         "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 777                         "saa7134:  cents for a eeprom, thus your pci board has no\n"
 778                         "saa7134:  subsystem ID and I can't identify it automatically\n"
 779                         "saa7134: </rant>\n"
 780                         "saa7134: I feel better now.  Ok, here are the good news:\n"
 781                         "saa7134: You can use the card=<nr> insmod option to specify\n"
 782                         "saa7134: which board do you have.  The list:\n");
 783         else
 784                 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 785                         "saa7134: insmod option to specify which board do you have, but this is\n"
 786                         "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 787                         "saa7134: for support at linux-media@vger.kernel.org.\n"
 788                         "saa7134: The supported cards are:\n");
 789
 790         for (i = 0; i < saa7134_bcount; i++) {
 791                 pr_warn("saa7134:   card=%d -> %-40.40s",
 792                        i,saa7134_boards[i].name);
 793                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 794                         if (saa7134_pci_tbl[p].driver_data != i)
 795                                 continue;
 796                         pr_cont(" %04x:%04x",
 797                                saa7134_pci_tbl[p].subvendor,
 798                                saa7134_pci_tbl[p].subdevice);
 799                 }
 800                 pr_cont("\n");
 801         }
 802 }
 803
 804 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
 805 {
 806
 807 #ifdef CONFIG_MEDIA_CONTROLLER
 808         if (!dev->media_dev)
 809                 return;
 810         media_device_unregister(dev->media_dev);
 811         media_device_cleanup(dev->media_dev);
 812         kfree(dev->media_dev);
 813         dev->media_dev = NULL;
 814 #endif
 815 }
 816
 817 static void saa7134_media_release(struct saa7134_dev *dev)
 818 {
 819 #ifdef CONFIG_MEDIA_CONTROLLER
 820         int i;
 821
 822         for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
 823                 media_device_unregister_entity(&dev->input_ent[i]);
 824 #endif
 825 }
 826
 827 #if defined(CONFIG_MEDIA_CONTROLLER)
 828 static void saa7134_create_entities(struct saa7134_dev *dev)
 829 {
 830         int ret, i;
 831         struct media_entity *entity;
 832         struct media_entity *decoder = NULL;
 833
 834         /* Check if it is using an external analog TV demod */
 835         media_device_for_each_entity(entity, dev->media_dev) {
 836                 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 837                         decoder = entity;
 838                         break;
 839                 }
 840         }
 841
 842         /*
 843          * saa713x is not using an external ATV demod.
 844          * Register the internal one
 845          */
 846         if (!decoder) {
 847                 dev->demod.name = "saa713x";
 848                 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
 849                 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
 850                 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 851                 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
 852                 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
 853
 854                 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
 855                                              dev->demod_pad);
 856                 if (ret < 0)
 857                         pr_err("failed to initialize demod pad!\n");
 858
 859                 ret = media_device_register_entity(dev->media_dev, &dev->demod);
 860                 if (ret < 0)
 861                         pr_err("failed to register demod entity!\n");
 862
 863                 dev->decoder = &dev->demod;
 864         } else {
 865                 dev->decoder = decoder;
 866         }
 867
 868         /* Initialize Video, VBI and Radio pads */
 869         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
 870         ret = media_entity_pads_init(&dev->video_dev->entity, 1,
 871                                      &dev->video_pad);
 872         if (ret < 0)
 873                 pr_err("failed to initialize video media entity!\n");
 874
 875         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 876         ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
 877                                         &dev->vbi_pad);
 878         if (ret < 0)
 879                 pr_err("failed to initialize vbi media entity!\n");
 880
 881         /* Create entities for each input connector */
 882         for (i = 0; i < SAA7134_INPUT_MAX; i++) {
 883                 struct media_entity *ent = &dev->input_ent[i];
 884                 struct saa7134_input *in = &card_in(dev, i);
 885
 886                 if (in->type == SAA7134_NO_INPUT)
 887                         break;
 888
 889                 /* This input uses the S-Video connector */
 890                 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
 891                         continue;
 892
 893                 ent->name = saa7134_input_name[in->type];
 894                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
 895                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 896
 897                 switch (in->type) {
 898                 case SAA7134_INPUT_COMPOSITE:
 899                 case SAA7134_INPUT_COMPOSITE0:
 900                 case SAA7134_INPUT_COMPOSITE1:
 901                 case SAA7134_INPUT_COMPOSITE2:
 902                 case SAA7134_INPUT_COMPOSITE3:
 903                 case SAA7134_INPUT_COMPOSITE4:
 904                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 905                         break;
 906                 case SAA7134_INPUT_SVIDEO:
 907                 case SAA7134_INPUT_SVIDEO0:
 908                 case SAA7134_INPUT_SVIDEO1:
 909                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 910                         break;
 911                 default:
 912                         /*
 913                          * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
 914                          *
 915                          * Please notice that neither SAA7134_INPUT_MUTE or
 916                          * SAA7134_INPUT_RADIO are defined at
 917                          * saa7134_board.input.
 918                          */
 919                         ent->function = MEDIA_ENT_F_CONN_RF;
 920                         break;
 921                 }
 922
 923                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 924                 if (ret < 0)
 925                         pr_err("failed to initialize input pad[%d]!\n", i);
 926
 927                 ret = media_device_register_entity(dev->media_dev, ent);
 928                 if (ret < 0)
 929                         pr_err("failed to register input entity %d!\n", i);
 930         }
 931
 932         /* Create input for Radio RF connector */
 933         if (card_has_radio(dev)) {
 934                 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
 935                 struct media_entity *ent = &dev->input_ent[i];
 936
 937                 ent->name = saa7134_input_name[in->type];
 938                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
 939                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 940                 ent->function = MEDIA_ENT_F_CONN_RF;
 941
 942                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 943                 if (ret < 0)
 944                         pr_err("failed to initialize input pad[%d]!\n", i);
 945
 946                 ret = media_device_register_entity(dev->media_dev, ent);
 947                 if (ret < 0)
 948                         pr_err("failed to register input entity %d!\n", i);
 949         }
 950 }
 951 #endif
 952
 953 static struct video_device *vdev_init(struct saa7134_dev *dev,
 954                                       struct video_device *template,
 955                                       char *type)
 956 {
 957         struct video_device *vfd;
 958
 959         vfd = video_device_alloc();
 960         if (NULL == vfd)
 961                 return NULL;
 962         *vfd = *template;
 963         vfd->v4l2_dev  = &dev->v4l2_dev;
 964         vfd->release = video_device_release;
 965         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 966                  dev->name, type, saa7134_boards[dev->board].name);
 967         video_set_drvdata(vfd, dev);
 968         return vfd;
 969 }
 970
 971 static void saa7134_unregister_video(struct saa7134_dev *dev)
 972 {
 973         saa7134_media_release(dev);
 974
 975         if (dev->video_dev) {
 976                 if (video_is_registered(dev->video_dev))
 977                         video_unregister_device(dev->video_dev);
 978                 else
 979                         video_device_release(dev->video_dev);
 980                 dev->video_dev = NULL;
 981         }
 982         if (dev->vbi_dev) {
 983                 if (video_is_registered(dev->vbi_dev))
 984                         video_unregister_device(dev->vbi_dev);
 985                 else
 986                         video_device_release(dev->vbi_dev);
 987                 dev->vbi_dev = NULL;
 988         }
 989         if (dev->radio_dev) {
 990                 if (video_is_registered(dev->radio_dev))
 991                         video_unregister_device(dev->radio_dev);
 992                 else
 993                         video_device_release(dev->radio_dev);
 994                 dev->radio_dev = NULL;
 995         }
 996 }
 997
 998 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 999                             struct saa7134_dev *dev)
1000 {
1001         int err;
1002
1003         if (NULL != dev->mops)
1004                 return;
1005         if (saa7134_boards[dev->board].mpeg != ops->type)
1006                 return;
1007         err = ops->init(dev);
1008         if (0 != err)
1009                 return;
1010         dev->mops = ops;
1011 }
1012
1013 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1014                             struct saa7134_dev *dev)
1015 {
1016         if (NULL == dev->mops)
1017                 return;
1018         if (dev->mops != ops)
1019                 return;
1020         dev->mops->fini(dev);
1021         dev->mops = NULL;
1022 }
1023
1024 static int saa7134_initdev(struct pci_dev *pci_dev,
1025                            const struct pci_device_id *pci_id)
1026 {
1027         struct saa7134_dev *dev;
1028         struct saa7134_mpeg_ops *mops;
1029         int err;
1030
1031         if (saa7134_devcount == SAA7134_MAXBOARDS)
1032                 return -ENOMEM;
1033
1034         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1035         if (NULL == dev)
1036                 return -ENOMEM;
1037
1038         dev->nr = saa7134_devcount;
1039         sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1040
1041 #ifdef CONFIG_MEDIA_CONTROLLER
1042         dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1043         if (!dev->media_dev) {
1044                 err = -ENOMEM;
1045                 goto fail0;
1046         }
1047         media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1048         dev->v4l2_dev.mdev = dev->media_dev;
1049 #endif
1050
1051         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1052         if (err)
1053                 goto fail0;
1054
1055         /* pci init */
1056         dev->pci = pci_dev;
1057         if (pci_enable_device(pci_dev)) {
1058                 err = -EIO;
1059                 goto fail1;
1060         }
1061
1062         /* pci quirks */
1063         if (pci_pci_problems) {
1064                 if (pci_pci_problems & PCIPCI_TRITON)
1065                         pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1066                 if (pci_pci_problems & PCIPCI_NATOMA)
1067                         pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1068                 if (pci_pci_problems & PCIPCI_VIAETBF)
1069                         pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1070                 if (pci_pci_problems & PCIPCI_VSFX)
1071                         pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1072 #ifdef PCIPCI_ALIMAGIK
1073                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1074                         pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1075                                dev->name);
1076                         latency = 0x0A;
1077                 }
1078 #endif
1079                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1080                         pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1081                                 dev->name);
1082                         if (!saa7134_no_overlay) {
1083                                 pr_info("%s: quirk: overlay mode will be disabled.\n",
1084                                                 dev->name);
1085                                 saa7134_no_overlay = 1;
1086                         } else {
1087                                 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1088                                                 dev->name);
1089                         }
1090                 }
1091         }
1092         if (UNSET != latency) {
1093                 pr_info("%s: setting pci latency timer to %d\n",
1094                        dev->name,latency);
1095                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1096         }
1097
1098         /* print pci info */
1099         dev->pci_rev = pci_dev->revision;
1100         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1101         pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1102                 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1103                 dev->pci_lat,
1104                 (unsigned long long)pci_resource_start(pci_dev, 0));
1105         pci_set_master(pci_dev);
1106         err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1107         if (err) {
1108                 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1109                 goto fail1;
1110         }
1111
1112         /* board config */
1113         dev->board = pci_id->driver_data;
1114         if ((unsigned)card[dev->nr] < saa7134_bcount)
1115                 dev->board = card[dev->nr];
1116         if (SAA7134_BOARD_UNKNOWN == dev->board)
1117                 must_configure_manually(0);
1118         else if (SAA7134_BOARD_NOAUTO == dev->board) {
1119                 must_configure_manually(1);
1120                 dev->board = SAA7134_BOARD_UNKNOWN;
1121         }
1122         dev->autodetected = card[dev->nr] != dev->board;
1123         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1124         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1125         dev->radio_type = saa7134_boards[dev->board].radio_type;
1126         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1127         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1128         if (UNSET != tuner[dev->nr])
1129                 dev->tuner_type = tuner[dev->nr];
1130         pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1131                 dev->name,pci_dev->subsystem_vendor,
1132                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1133                 dev->board, dev->autodetected ?
1134                 "autodetected" : "insmod option");
1135
1136         /* get mmio */
1137         if (!request_mem_region(pci_resource_start(pci_dev,0),
1138                                 pci_resource_len(pci_dev,0),
1139                                 dev->name)) {
1140                 err = -EBUSY;
1141                 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1142                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1143                 goto fail1;
1144         }
1145         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1146                              pci_resource_len(pci_dev, 0));
1147         dev->bmmio = (__u8 __iomem *)dev->lmmio;
1148         if (NULL == dev->lmmio) {
1149                 err = -EIO;
1150                 pr_err("%s: can't ioremap() MMIO memory\n",
1151                        dev->name);
1152                 goto fail2;
1153         }
1154
1155         /* initialize hardware #1 */
1156         saa7134_board_init1(dev);
1157         saa7134_hwinit1(dev);
1158
1159         /* get irq */
1160         err = request_irq(pci_dev->irq, saa7134_irq,
1161                           IRQF_SHARED, dev->name, dev);
1162         if (err < 0) {
1163                 pr_err("%s: can't get IRQ %d\n",
1164                        dev->name,pci_dev->irq);
1165                 goto fail3;
1166         }
1167
1168         /* wait a bit, register i2c bus */
1169         msleep(100);
1170         saa7134_i2c_register(dev);
1171         saa7134_board_init2(dev);
1172
1173         saa7134_hwinit2(dev);
1174
1175         /* load i2c helpers */
1176         if (card_is_empress(dev)) {
1177                 dev->empress_sd =
1178                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1179                                 "saa6752hs",
1180                                 saa7134_boards[dev->board].empress_addr, NULL);
1181
1182                 if (dev->empress_sd)
1183                         dev->empress_sd->grp_id = GRP_EMPRESS;
1184         }
1185
1186         if (saa7134_boards[dev->board].rds_addr) {
1187                 struct v4l2_subdev *sd;
1188
1189                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1190                                 &dev->i2c_adap, "saa6588",
1191                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1192                 if (sd) {
1193                         pr_info("%s: found RDS decoder\n", dev->name);
1194                         dev->has_rds = 1;
1195                 }
1196         }
1197
1198         mutex_lock(&saa7134_devlist_lock);
1199         list_for_each_entry(mops, &mops_list, next)
1200                 mpeg_ops_attach(mops, dev);
1201         list_add_tail(&dev->devlist, &saa7134_devlist);
1202         mutex_unlock(&saa7134_devlist_lock);
1203
1204         /* check for signal */
1205         saa7134_irq_video_signalchange(dev);
1206
1207         if (TUNER_ABSENT != dev->tuner_type)
1208                 saa_call_all(dev, core, s_power, 0);
1209
1210         /* register v4l devices */
1211         if (saa7134_no_overlay > 0)
1212                 pr_info("%s: Overlay support disabled.\n", dev->name);
1213
1214         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1215         dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1216         dev->video_dev->lock = &dev->lock;
1217         dev->video_dev->queue = &dev->video_vbq;
1218         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1219                                     video_nr[dev->nr]);
1220         if (err < 0) {
1221                 pr_info("%s: can't register video device\n",
1222                        dev->name);
1223                 goto fail4;
1224         }
1225         pr_info("%s: registered device %s [v4l2]\n",
1226                dev->name, video_device_node_name(dev->video_dev));
1227
1228         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1229         dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1230         dev->vbi_dev->lock = &dev->lock;
1231         dev->vbi_dev->queue = &dev->vbi_vbq;
1232
1233         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1234                                     vbi_nr[dev->nr]);
1235         if (err < 0)
1236                 goto fail4;
1237         pr_info("%s: registered device %s\n",
1238                dev->name, video_device_node_name(dev->vbi_dev));
1239
1240         if (card_has_radio(dev)) {
1241                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1242                 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1243                 dev->radio_dev->lock = &dev->lock;
1244                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1245                                             radio_nr[dev->nr]);
1246                 if (err < 0)
1247                         goto fail4;
1248                 pr_info("%s: registered device %s\n",
1249                        dev->name, video_device_node_name(dev->radio_dev));
1250         }
1251
1252 #ifdef CONFIG_MEDIA_CONTROLLER
1253         saa7134_create_entities(dev);
1254
1255         err = v4l2_mc_create_media_graph(dev->media_dev);
1256         if (err) {
1257                 pr_err("failed to create media graph\n");
1258                 goto fail4;
1259         }
1260 #endif
1261         /* everything worked */
1262         saa7134_devcount++;
1263
1264         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1265                 saa7134_dmasound_init(dev);
1266
1267         request_submodules(dev);
1268
1269         /*
1270          * Do it at the end, to reduce dynamic configuration changes during
1271          * the device init. Yet, as request_modules() can be async, the
1272          * topology will likely change after load the saa7134 subdrivers.
1273          */
1274 #ifdef CONFIG_MEDIA_CONTROLLER
1275         err = media_device_register(dev->media_dev);
1276         if (err)
1277                 goto fail4;
1278 #endif
1279
1280         return 0;
1281
1282  fail4:
1283         saa7134_unregister_video(dev);
1284         saa7134_i2c_unregister(dev);
1285         free_irq(pci_dev->irq, dev);
1286  fail3:
1287         saa7134_hwfini(dev);
1288         iounmap(dev->lmmio);
1289  fail2:
1290         release_mem_region(pci_resource_start(pci_dev,0),
1291                            pci_resource_len(pci_dev,0));
1292  fail1:
1293         v4l2_device_unregister(&dev->v4l2_dev);
1294  fail0:
1295 #ifdef CONFIG_MEDIA_CONTROLLER
1296         kfree(dev->media_dev);
1297 #endif
1298         kfree(dev);
1299         return err;
1300 }
1301
1302 static void saa7134_finidev(struct pci_dev *pci_dev)
1303 {
1304         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1305         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1306         struct saa7134_mpeg_ops *mops;
1307
1308         flush_request_submodules(dev);
1309
1310         /* Release DMA sound modules if present */
1311         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1312                 saa7134_dmasound_exit(dev);
1313         }
1314
1315         /* debugging ... */
1316         if (irq_debug) {
1317                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1318                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1319                 print_irqstatus(dev,42,report,status);
1320         }
1321
1322         /* disable peripheral devices */
1323         saa_writeb(SAA7134_SPECIAL_MODE,0);
1324
1325         /* shutdown hardware */
1326         saa_writel(SAA7134_IRQ1,0);
1327         saa_writel(SAA7134_IRQ2,0);
1328         saa_writel(SAA7134_MAIN_CTRL,0);
1329
1330         /* shutdown subsystems */
1331         saa7134_hwfini(dev);
1332
1333         /* unregister */
1334         mutex_lock(&saa7134_devlist_lock);
1335         list_del(&dev->devlist);
1336         list_for_each_entry(mops, &mops_list, next)
1337                 mpeg_ops_detach(mops, dev);
1338         mutex_unlock(&saa7134_devlist_lock);
1339         saa7134_devcount--;
1340
1341         saa7134_i2c_unregister(dev);
1342         saa7134_unregister_video(dev);
1343
1344
1345         /* the DMA sound modules should be unloaded before reaching
1346            this, but just in case they are still present... */
1347         if (dev->dmasound.priv_data != NULL) {
1348                 free_irq(pci_dev->irq, &dev->dmasound);
1349                 dev->dmasound.priv_data = NULL;
1350         }
1351
1352
1353         /* release resources */
1354         free_irq(pci_dev->irq, dev);
1355         iounmap(dev->lmmio);
1356         release_mem_region(pci_resource_start(pci_dev,0),
1357                            pci_resource_len(pci_dev,0));
1358
1359         v4l2_device_unregister(&dev->v4l2_dev);
1360
1361         saa7134_unregister_media_device(dev);
1362
1363         /* free memory */
1364         kfree(dev);
1365 }
1366
1367 #ifdef CONFIG_PM
1368
1369 /* resends a current buffer in queue after resume */
1370 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1371                                   struct saa7134_dmaqueue *q)
1372 {
1373         struct saa7134_buf *buf, *next;
1374
1375         assert_spin_locked(&dev->slock);
1376
1377         buf  = q->curr;
1378         next = buf;
1379         core_dbg("buffer_requeue\n");
1380
1381         if (!buf)
1382                 return 0;
1383
1384         core_dbg("buffer_requeue : resending active buffer\n");
1385
1386         if (!list_empty(&q->queue))
1387                 next = list_entry(q->queue.next, struct saa7134_buf,
1388                                           entry);
1389         buf->activate(dev, buf, next);
1390
1391         return 0;
1392 }
1393
1394 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1395 {
1396         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1397         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1398
1399         /* disable overlay - apps should enable it explicitly on resume*/
1400         dev->ovenable = 0;
1401
1402         /* Disable interrupts, DMA, and rest of the chip*/
1403         saa_writel(SAA7134_IRQ1, 0);
1404         saa_writel(SAA7134_IRQ2, 0);
1405         saa_writel(SAA7134_MAIN_CTRL, 0);
1406
1407         dev->insuspend = 1;
1408         synchronize_irq(pci_dev->irq);
1409
1410         /* ACK interrupts once more, just in case,
1411                 since the IRQ handler won't ack them anymore*/
1412
1413         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1414
1415         /* Disable timeout timers - if we have active buffers, we will
1416            fill them on resume*/
1417
1418         del_timer(&dev->video_q.timeout);
1419         del_timer(&dev->vbi_q.timeout);
1420         del_timer(&dev->ts_q.timeout);
1421
1422         if (dev->remote && dev->remote->dev->users)
1423                 saa7134_ir_close(dev->remote->dev);
1424
1425         pci_save_state(pci_dev);
1426         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1427
1428         return 0;
1429 }
1430
1431 static int saa7134_resume(struct pci_dev *pci_dev)
1432 {
1433         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1434         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1435         unsigned long flags;
1436
1437         pci_set_power_state(pci_dev, PCI_D0);
1438         pci_restore_state(pci_dev);
1439
1440         /* Do things that are done in saa7134_initdev ,
1441                 except of initializing memory structures.*/
1442
1443         saa7134_board_init1(dev);
1444
1445         /* saa7134_hwinit1 */
1446         if (saa7134_boards[dev->board].video_out)
1447                 saa7134_videoport_init(dev);
1448         if (card_has_mpeg(dev))
1449                 saa7134_ts_init_hw(dev);
1450         if (dev->remote && dev->remote->dev->users)
1451                 saa7134_ir_open(dev->remote->dev);
1452         saa7134_hw_enable1(dev);
1453
1454         msleep(100);
1455
1456         saa7134_board_init2(dev);
1457
1458         /*saa7134_hwinit2*/
1459         saa7134_set_tvnorm_hw(dev);
1460         saa7134_tvaudio_setmute(dev);
1461         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1462         saa7134_tvaudio_init(dev);
1463         saa7134_enable_i2s(dev);
1464         saa7134_hw_enable2(dev);
1465
1466         saa7134_irq_video_signalchange(dev);
1467
1468         /*resume unfinished buffer(s)*/
1469         spin_lock_irqsave(&dev->slock, flags);
1470         saa7134_buffer_requeue(dev, &dev->video_q);
1471         saa7134_buffer_requeue(dev, &dev->vbi_q);
1472         saa7134_buffer_requeue(dev, &dev->ts_q);
1473
1474         /* FIXME: Disable DMA audio sound - temporary till proper support
1475                   is implemented*/
1476
1477         dev->dmasound.dma_running = 0;
1478
1479         /* start DMA now*/
1480         dev->insuspend = 0;
1481         smp_wmb();
1482         saa7134_set_dmabits(dev);
1483         spin_unlock_irqrestore(&dev->slock, flags);
1484
1485         return 0;
1486 }
1487 #endif
1488
1489 /* ----------------------------------------------------------- */
1490
1491 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1492 {
1493         struct saa7134_dev *dev;
1494
1495         mutex_lock(&saa7134_devlist_lock);
1496         list_for_each_entry(dev, &saa7134_devlist, devlist)
1497                 mpeg_ops_attach(ops, dev);
1498         list_add_tail(&ops->next,&mops_list);
1499         mutex_unlock(&saa7134_devlist_lock);
1500         return 0;
1501 }
1502
1503 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1504 {
1505         struct saa7134_dev *dev;
1506
1507         mutex_lock(&saa7134_devlist_lock);
1508         list_del(&ops->next);
1509         list_for_each_entry(dev, &saa7134_devlist, devlist)
1510                 mpeg_ops_detach(ops, dev);
1511         mutex_unlock(&saa7134_devlist_lock);
1512 }
1513
1514 EXPORT_SYMBOL(saa7134_ts_register);
1515 EXPORT_SYMBOL(saa7134_ts_unregister);
1516
1517 /* ----------------------------------------------------------- */
1518
1519 static struct pci_driver saa7134_pci_driver = {
1520         .name     = "saa7134",
1521         .id_table = saa7134_pci_tbl,
1522         .probe    = saa7134_initdev,
1523         .remove   = saa7134_finidev,
1524 #ifdef CONFIG_PM
1525         .suspend  = saa7134_suspend,
1526         .resume   = saa7134_resume
1527 #endif
1528 };
1529
1530 static int __init saa7134_init(void)
1531 {
1532         INIT_LIST_HEAD(&saa7134_devlist);
1533         pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1534                SAA7134_VERSION);
1535         return pci_register_driver(&saa7134_pci_driver);
1536 }
1537
1538 static void __exit saa7134_fini(void)
1539 {
1540         pci_unregister_driver(&saa7134_pci_driver);
1541 }
1542
1543 module_init(saa7134_init);
1544 module_exit(saa7134_fini);
1545
1546 /* ----------------------------------------------------------- */
1547
1548 EXPORT_SYMBOL(saa7134_set_gpio);
1549 EXPORT_SYMBOL(saa7134_boards);
1550
1551 /* ----------------- for the DMA sound modules --------------- */
1552
1553 EXPORT_SYMBOL(saa7134_dmasound_init);
1554 EXPORT_SYMBOL(saa7134_dmasound_exit);
1555 EXPORT_SYMBOL(saa7134_pgtable_free);
1556 EXPORT_SYMBOL(saa7134_pgtable_build);
1557 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1558 EXPORT_SYMBOL(saa7134_set_dmabits);