drivers/media/pci/saa7134/saa7134-core.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  * device driver for philips saa7134 based TV cards
   5  * driver core
   6  *
   7  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8  */
   9
  10 #include "saa7134.h"
  11 #include "saa7134-reg.h"
  12
  13 #include <linux/init.h>
  14 #include <linux/list.h>
  15 #include <linux/module.h>
  16 #include <linux/kernel.h>
  17 #include <linux/slab.h>
  18 #include <linux/kmod.h>
  19 #include <linux/sound.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/delay.h>
  22 #include <linux/mutex.h>
  23 #include <linux/dma-mapping.h>
  24 #include <linux/pm.h>
  25
  26 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  27 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  28 MODULE_LICENSE("GPL");
  29 MODULE_VERSION(SAA7134_VERSION);
  30
  31
  32 /* ------------------------------------------------------------------ */
  33
  34 static unsigned int irq_debug;
  35 module_param(irq_debug, int, 0644);
  36 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  37
  38 static unsigned int core_debug;
  39 module_param(core_debug, int, 0644);
  40 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  41
  42 static unsigned int gpio_tracking;
  43 module_param(gpio_tracking, int, 0644);
  44 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  45
  46 static unsigned int alsa = 1;
  47 module_param(alsa, int, 0644);
  48 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  49
  50 static unsigned int latency = UNSET;
  51 module_param(latency, int, 0444);
  52 MODULE_PARM_DESC(latency,"pci latency timer");
  53
  54 int saa7134_no_overlay=-1;
  55 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  56 MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
  57
  58 bool saa7134_userptr;
  59 module_param(saa7134_userptr, bool, 0644);
  60 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
  61
  62 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  63 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  64 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  65 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  66 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  67
  68
  69 module_param_array(video_nr, int, NULL, 0444);
  70 module_param_array(vbi_nr,   int, NULL, 0444);
  71 module_param_array(radio_nr, int, NULL, 0444);
  72 module_param_array(tuner,    int, NULL, 0444);
  73 module_param_array(card,     int, NULL, 0444);
  74
  75 MODULE_PARM_DESC(video_nr, "video device number");
  76 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  77 MODULE_PARM_DESC(radio_nr, "radio device number");
  78 MODULE_PARM_DESC(tuner,    "tuner type");
  79 MODULE_PARM_DESC(card,     "card type");
  80
  81 DEFINE_MUTEX(saa7134_devlist_lock);
  82 EXPORT_SYMBOL(saa7134_devlist_lock);
  83 LIST_HEAD(saa7134_devlist);
  84 EXPORT_SYMBOL(saa7134_devlist);
  85 static LIST_HEAD(mops_list);
  86 static unsigned int saa7134_devcount;
  87
  88 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  89 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  90
  91 #define core_dbg(fmt, arg...) do { \
  92         if (core_debug) \
  93                 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
  94         } while (0)
  95
  96 #define irq_dbg(level, fmt, arg...)  do {\
  97         if (irq_debug > level) \
  98                 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
  99         } while (0)
 100
 101 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
 102 {
 103         unsigned long mode,status;
 104
 105         if (!gpio_tracking)
 106                 return;
 107         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 108         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 109         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 110         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 111         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 112         core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 113                dev->name, mode, (~mode) & status, mode & status, msg);
 114 }
 115
 116 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 117 {
 118         u32 index, bitval;
 119
 120         index = 1 << bit_no;
 121         switch (value) {
 122         case 0: /* static value */
 123         case 1:
 124                 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
 125                 /* turn sync mode off if necessary */
 126                 if (index & 0x00c00000)
 127                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 128                 if (value)
 129                         bitval = index;
 130                 else
 131                         bitval = 0;
 132                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 133                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 134                 break;
 135         case 3: /* tristate */
 136                 core_dbg("setting GPIO%d to tristate\n", bit_no);
 137                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 138                 break;
 139         }
 140 }
 141
 142 /* ------------------------------------------------------------------ */
 143
 144
 145 /* ----------------------------------------------------------- */
 146 /* delayed request_module                                      */
 147
 148 #if defined(CONFIG_MODULES) && defined(MODULE)
 149
 150 static void request_module_async(struct work_struct *work){
 151         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 152         if (card_is_empress(dev))
 153                 request_module("saa7134-empress");
 154         if (card_is_dvb(dev))
 155                 request_module("saa7134-dvb");
 156         if (card_is_go7007(dev))
 157                 request_module("saa7134-go7007");
 158         if (alsa) {
 159                 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 160                         request_module("saa7134-alsa");
 161         }
 162 }
 163
 164 static void request_submodules(struct saa7134_dev *dev)
 165 {
 166         INIT_WORK(&dev->request_module_wk, request_module_async);
 167         schedule_work(&dev->request_module_wk);
 168 }
 169
 170 static void flush_request_submodules(struct saa7134_dev *dev)
 171 {
 172         flush_work(&dev->request_module_wk);
 173 }
 174
 175 #else
 176 #define request_submodules(dev)
 177 #define flush_request_submodules(dev)
 178 #endif /* CONFIG_MODULES */
 179
 180 /* ------------------------------------------------------------------ */
 181
 182 /* nr of (saa7134-)pages for the given buffer size */
 183 static int saa7134_buffer_pages(int size)
 184 {
 185         size  = PAGE_ALIGN(size);
 186         size += PAGE_SIZE; /* for non-page-aligned buffers */
 187         size /= 4096;
 188         return size;
 189 }
 190
 191 /* calc max # of buffers from size (must not exceed the 4MB virtual
 192  * address space per DMA channel) */
 193 int saa7134_buffer_count(unsigned int size, unsigned int count)
 194 {
 195         unsigned int maxcount;
 196
 197         maxcount = 1024 / saa7134_buffer_pages(size);
 198         if (count > maxcount)
 199                 count = maxcount;
 200         return count;
 201 }
 202
 203 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 204 {
 205         return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
 206                         * buf->vb2.vb2_buf.index;
 207 }
 208
 209 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 210 {
 211         unsigned long base;
 212         struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
 213
 214         base  = saa7134_buffer_startpage(buf) * 4096;
 215         base += dma->sgl[0].offset;
 216         return base;
 217 }
 218
 219 /* ------------------------------------------------------------------ */
 220
 221 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 222 {
 223         __le32       *cpu;
 224         dma_addr_t   dma_addr = 0;
 225
 226         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 227         if (NULL == cpu)
 228                 return -ENOMEM;
 229         pt->size = SAA7134_PGTABLE_SIZE;
 230         pt->cpu  = cpu;
 231         pt->dma  = dma_addr;
 232         return 0;
 233 }
 234
 235 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 236                           struct scatterlist *list, unsigned int length,
 237                           unsigned int startpage)
 238 {
 239         __le32        *ptr;
 240         unsigned int  i, p;
 241
 242         BUG_ON(NULL == pt || NULL == pt->cpu);
 243
 244         ptr = pt->cpu + startpage;
 245         for (i = 0; i < length; i++, list = sg_next(list)) {
 246                 for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++)
 247                         *ptr = cpu_to_le32(sg_dma_address(list) +
 248                                                 list->offset + p * 4096);
 249         }
 250         return 0;
 251 }
 252
 253 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 254 {
 255         if (NULL == pt->cpu)
 256                 return;
 257         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 258         pt->cpu = NULL;
 259 }
 260
 261 /* ------------------------------------------------------------------ */
 262
 263 int saa7134_buffer_queue(struct saa7134_dev *dev,
 264                          struct saa7134_dmaqueue *q,
 265                          struct saa7134_buf *buf)
 266 {
 267         struct saa7134_buf *next = NULL;
 268         unsigned long flags;
 269
 270         spin_lock_irqsave(&dev->slock, flags);
 271         core_dbg("buffer_queue %p\n", buf);
 272         if (NULL == q->curr) {
 273                 if (!q->need_two) {
 274                         q->curr = buf;
 275                         buf->activate(dev, buf, NULL);
 276                 } else if (list_empty(&q->queue)) {
 277                         list_add_tail(&buf->entry, &q->queue);
 278                 } else {
 279                         next = list_entry(q->queue.next, struct saa7134_buf,
 280                                           entry);
 281                         q->curr = buf;
 282                         buf->activate(dev, buf, next);
 283                 }
 284         } else {
 285                 list_add_tail(&buf->entry, &q->queue);
 286         }
 287         spin_unlock_irqrestore(&dev->slock, flags);
 288         return 0;
 289 }
 290
 291 void saa7134_buffer_finish(struct saa7134_dev *dev,
 292                            struct saa7134_dmaqueue *q,
 293                            unsigned int state)
 294 {
 295         core_dbg("buffer_finish %p\n", q->curr);
 296
 297         /* finish current buffer */
 298         q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
 299         q->curr->vb2.sequence = q->seq_nr++;
 300         vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
 301         q->curr = NULL;
 302 }
 303
 304 void saa7134_buffer_next(struct saa7134_dev *dev,
 305                          struct saa7134_dmaqueue *q)
 306 {
 307         struct saa7134_buf *buf,*next = NULL;
 308
 309         assert_spin_locked(&dev->slock);
 310         BUG_ON(NULL != q->curr);
 311
 312         if (!list_empty(&q->queue)) {
 313                 /* activate next one from queue */
 314                 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
 315                 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
 316                         buf, q->queue.prev, q->queue.next);
 317                 list_del(&buf->entry);
 318                 if (!list_empty(&q->queue))
 319                         next = list_entry(q->queue.next, struct saa7134_buf, entry);
 320                 q->curr = buf;
 321                 buf->activate(dev, buf, next);
 322                 core_dbg("buffer_next #2 prev=%p/next=%p\n",
 323                         q->queue.prev, q->queue.next);
 324         } else {
 325                 /* nothing to do -- just stop DMA */
 326                 core_dbg("buffer_next %p\n", NULL);
 327                 saa7134_set_dmabits(dev);
 328                 del_timer(&q->timeout);
 329         }
 330 }
 331
 332 void saa7134_buffer_timeout(struct timer_list *t)
 333 {
 334         struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
 335         struct saa7134_dev *dev = q->dev;
 336         unsigned long flags;
 337
 338         spin_lock_irqsave(&dev->slock, flags);
 339
 340         /* try to reset the hardware (SWRST) */
 341         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 342         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 343         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 344
 345         /* flag current buffer as failed,
 346            try to start over with the next one. */
 347         if (q->curr) {
 348                 core_dbg("timeout on %p\n", q->curr);
 349                 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
 350         }
 351         saa7134_buffer_next(dev, q);
 352         spin_unlock_irqrestore(&dev->slock, flags);
 353 }
 354
 355 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
 356 {
 357         unsigned long flags;
 358         struct list_head *pos, *n;
 359         struct saa7134_buf *tmp;
 360
 361         spin_lock_irqsave(&dev->slock, flags);
 362         list_for_each_safe(pos, n, &q->queue) {
 363                 tmp = list_entry(pos, struct saa7134_buf, entry);
 364                 vb2_buffer_done(&tmp->vb2.vb2_buf,
 365                                 VB2_BUF_STATE_ERROR);
 366                 list_del(pos);
 367                 tmp = NULL;
 368         }
 369         spin_unlock_irqrestore(&dev->slock, flags);
 370         saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
 371 }
 372 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 373
 374 /* ------------------------------------------------------------------ */
 375
 376 int saa7134_set_dmabits(struct saa7134_dev *dev)
 377 {
 378         u32 split, task=0, ctrl=0, irq=0;
 379         enum v4l2_field cap = V4L2_FIELD_ANY;
 380         enum v4l2_field ov  = V4L2_FIELD_ANY;
 381
 382         assert_spin_locked(&dev->slock);
 383
 384         if (dev->insuspend)
 385                 return 0;
 386
 387         /* video capture -- dma 0 + video task A */
 388         if (dev->video_q.curr) {
 389                 task |= 0x01;
 390                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 391                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 392                         SAA7134_IRQ1_INTE_RA0_0;
 393                 cap = dev->field;
 394         }
 395
 396         /* video capture -- dma 1+2 (planar modes) */
 397         if (dev->video_q.curr && dev->fmt->planar) {
 398                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 399                         SAA7134_MAIN_CTRL_TE5;
 400         }
 401
 402         /* screen overlay -- dma 0 + video task B */
 403         if (dev->ovenable) {
 404                 task |= 0x10;
 405                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 406                 ov = dev->ovfield;
 407         }
 408
 409         /* vbi capture -- dma 0 + vbi task A+B */
 410         if (dev->vbi_q.curr) {
 411                 task |= 0x22;
 412                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 413                         SAA7134_MAIN_CTRL_TE3;
 414                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 415                         SAA7134_IRQ1_INTE_RA0_6 |
 416                         SAA7134_IRQ1_INTE_RA0_5 |
 417                         SAA7134_IRQ1_INTE_RA0_4;
 418         }
 419
 420         /* audio capture -- dma 3 */
 421         if (dev->dmasound.dma_running) {
 422                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 423                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 424                         SAA7134_IRQ1_INTE_RA3_0;
 425         }
 426
 427         /* TS capture -- dma 5 */
 428         if (dev->ts_q.curr) {
 429                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 430                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 431                         SAA7134_IRQ1_INTE_RA2_0;
 432         }
 433
 434         /* set task conditions + field handling */
 435         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 436                 /* default config -- use full frames */
 437                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 438                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 439                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 440                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 441                 split = 0;
 442         } else {
 443                 /* split fields between tasks */
 444                 if (V4L2_FIELD_TOP == cap) {
 445                         /* odd A, even B, repeat */
 446                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 447                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 448                 } else {
 449                         /* odd B, even A, repeat */
 450                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 451                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 452                 }
 453                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 454                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 455                 split = 1;
 456         }
 457
 458         /* irqs */
 459         saa_writeb(SAA7134_REGION_ENABLE, task);
 460         saa_writel(SAA7134_IRQ1,          irq);
 461         saa_andorl(SAA7134_MAIN_CTRL,
 462                    SAA7134_MAIN_CTRL_TE0 |
 463                    SAA7134_MAIN_CTRL_TE1 |
 464                    SAA7134_MAIN_CTRL_TE2 |
 465                    SAA7134_MAIN_CTRL_TE3 |
 466                    SAA7134_MAIN_CTRL_TE4 |
 467                    SAA7134_MAIN_CTRL_TE5 |
 468                    SAA7134_MAIN_CTRL_TE6,
 469                    ctrl);
 470         core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 471                 task, ctrl, irq, split ? "no" : "yes");
 472
 473         return 0;
 474 }
 475
 476 /* ------------------------------------------------------------------ */
 477 /* IRQ handler + helpers                                              */
 478
 479 static char *irqbits[] = {
 480         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 481         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 482         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 483         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 484 };
 485 #define IRQBITS ARRAY_SIZE(irqbits)
 486
 487 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 488                             unsigned long report, unsigned long status)
 489 {
 490         unsigned int i;
 491
 492         irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 493                 loop, jiffies, report, status);
 494         for (i = 0; i < IRQBITS; i++) {
 495                 if (!(report & (1 << i)))
 496                         continue;
 497                 pr_cont(" %s", irqbits[i]);
 498         }
 499         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 500                 pr_cont(" | RA0=%s,%s,%s,%ld",
 501                         (status & 0x40) ? "vbi"  : "video",
 502                         (status & 0x20) ? "b"    : "a",
 503                         (status & 0x10) ? "odd"  : "even",
 504                         (status & 0x0f));
 505         }
 506         pr_cont("\n");
 507 }
 508
 509 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 510 {
 511         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 512         unsigned long report,status;
 513         int loop, handled = 0;
 514
 515         if (dev->insuspend)
 516                 goto out;
 517
 518         for (loop = 0; loop < 10; loop++) {
 519                 report = saa_readl(SAA7134_IRQ_REPORT);
 520                 status = saa_readl(SAA7134_IRQ_STATUS);
 521
 522                 /* If dmasound support is active and we get a sound report,
 523                  * mask out the report and let the saa7134-alsa module deal
 524                  * with it */
 525                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 526                         (dev->dmasound.priv_data != NULL) )
 527                 {
 528                         irq_dbg(2, "preserving DMA sound interrupt\n");
 529                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 530                 }
 531
 532                 if (0 == report) {
 533                         irq_dbg(2, "no (more) work\n");
 534                         goto out;
 535                 }
 536
 537                 handled = 1;
 538                 saa_writel(SAA7134_IRQ_REPORT,report);
 539                 if (irq_debug)
 540                         print_irqstatus(dev,loop,report,status);
 541
 542
 543                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 544                         (report & SAA7134_IRQ_REPORT_INTL))
 545                                 saa7134_irq_video_signalchange(dev);
 546
 547
 548                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 549                     (status & 0x60) == 0)
 550                         saa7134_irq_video_done(dev,status);
 551
 552                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 553                     (status & 0x40) == 0x40)
 554                         saa7134_irq_vbi_done(dev,status);
 555
 556                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 557                     card_has_mpeg(dev)) {
 558                         if (dev->mops->irq_ts_done != NULL)
 559                                 dev->mops->irq_ts_done(dev, status);
 560                         else
 561                                 saa7134_irq_ts_done(dev, status);
 562                 }
 563
 564                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 565                         switch (dev->has_remote) {
 566                                 case SAA7134_REMOTE_GPIO:
 567                                         if (!dev->remote)
 568                                                 break;
 569                                         if  (dev->remote->mask_keydown & 0x10000) {
 570                                                 saa7134_input_irq(dev);
 571                                         }
 572                                         break;
 573
 574                                 case SAA7134_REMOTE_I2C:
 575                                         break;                  /* FIXME: invoke I2C get_key() */
 576
 577                                 default:                        /* GPIO16 not used by IR remote */
 578                                         break;
 579                         }
 580                 }
 581
 582                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 583                         switch (dev->has_remote) {
 584                                 case SAA7134_REMOTE_GPIO:
 585                                         if (!dev->remote)
 586                                                 break;
 587                                         if ((dev->remote->mask_keydown & 0x40000) ||
 588                                             (dev->remote->mask_keyup & 0x40000)) {
 589                                                 saa7134_input_irq(dev);
 590                                         }
 591                                         break;
 592
 593                                 case SAA7134_REMOTE_I2C:
 594                                         break;                  /* FIXME: invoke I2C get_key() */
 595
 596                                 default:                        /* GPIO18 not used by IR remote */
 597                                         break;
 598                         }
 599                 }
 600         }
 601
 602         if (10 == loop) {
 603                 print_irqstatus(dev,loop,report,status);
 604                 if (report & SAA7134_IRQ_REPORT_PE) {
 605                         /* disable all parity error */
 606                         pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
 607                                 dev->name);
 608                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 609                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 610                         /* disable gpio16 IRQ */
 611                         pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
 612                                 dev->name);
 613                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 614                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 615                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 616                         /* disable gpio18 IRQs */
 617                         pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
 618                                 dev->name);
 619                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 620                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 621                 } else {
 622                         /* disable all irqs */
 623                         pr_warn("%s/irq: looping -- clearing all enable bits\n",
 624                                 dev->name);
 625                         saa_writel(SAA7134_IRQ1,0);
 626                         saa_writel(SAA7134_IRQ2,0);
 627                 }
 628         }
 629
 630  out:
 631         return IRQ_RETVAL(handled);
 632 }
 633
 634 /* ------------------------------------------------------------------ */
 635
 636 /* early init (no i2c, no irq) */
 637
 638 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 639 {
 640         /* RAM FIFO config */
 641         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 642         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 643
 644         /* enable audio + video processing */
 645         saa_writel(SAA7134_MAIN_CTRL,
 646                         SAA7134_MAIN_CTRL_VPLLE |
 647                         SAA7134_MAIN_CTRL_APLLE |
 648                         SAA7134_MAIN_CTRL_EXOSC |
 649                         SAA7134_MAIN_CTRL_EVFE1 |
 650                         SAA7134_MAIN_CTRL_EVFE2 |
 651                         SAA7134_MAIN_CTRL_ESFE  |
 652                         SAA7134_MAIN_CTRL_EBDAC);
 653
 654         /*
 655         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 656         * OSS initialization writes to registers via the audio DSP; these
 657         * writes will fail unless the audio clock has been started.  At worst,
 658         * audio will not work.
 659         */
 660
 661         /* enable peripheral devices */
 662         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 663
 664         /* set vertical line numbering start (vbi needs this) */
 665         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 666
 667         return 0;
 668 }
 669
 670 static int saa7134_hwinit1(struct saa7134_dev *dev)
 671 {
 672         core_dbg("hwinit1\n");
 673
 674         saa_writel(SAA7134_IRQ1, 0);
 675         saa_writel(SAA7134_IRQ2, 0);
 676
 677         /* Clear any stale IRQ reports */
 678         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 679
 680         mutex_init(&dev->lock);
 681         spin_lock_init(&dev->slock);
 682
 683         saa7134_track_gpio(dev,"pre-init");
 684         saa7134_video_init1(dev);
 685         saa7134_vbi_init1(dev);
 686         if (card_has_mpeg(dev))
 687                 saa7134_ts_init1(dev);
 688         saa7134_input_init1(dev);
 689
 690         saa7134_hw_enable1(dev);
 691
 692         return 0;
 693 }
 694
 695 /* late init (with i2c + irq) */
 696 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 697 {
 698
 699         unsigned int irq2_mask;
 700
 701         /* enable IRQ's */
 702         irq2_mask =
 703                 SAA7134_IRQ2_INTE_DEC3    |
 704                 SAA7134_IRQ2_INTE_DEC2    |
 705                 SAA7134_IRQ2_INTE_DEC1    |
 706                 SAA7134_IRQ2_INTE_DEC0    |
 707                 SAA7134_IRQ2_INTE_PE      |
 708                 SAA7134_IRQ2_INTE_AR;
 709
 710         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 711                 if (dev->remote->mask_keydown & 0x10000)
 712                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 713                 else {          /* Allow enabling both IRQ edge triggers */
 714                         if (dev->remote->mask_keydown & 0x40000)
 715                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 716                         if (dev->remote->mask_keyup & 0x40000)
 717                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 718                 }
 719         }
 720
 721         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 722                 request_module("ir-kbd-i2c");
 723         }
 724
 725         saa_writel(SAA7134_IRQ1, 0);
 726         saa_writel(SAA7134_IRQ2, irq2_mask);
 727
 728         return 0;
 729 }
 730
 731 static int saa7134_hwinit2(struct saa7134_dev *dev)
 732 {
 733
 734         core_dbg("hwinit2\n");
 735
 736         saa7134_video_init2(dev);
 737         saa7134_tvaudio_init2(dev);
 738
 739         saa7134_hw_enable2(dev);
 740
 741         return 0;
 742 }
 743
 744
 745 /* shutdown */
 746 static int saa7134_hwfini(struct saa7134_dev *dev)
 747 {
 748         core_dbg("hwfini\n");
 749
 750         if (card_has_mpeg(dev))
 751                 saa7134_ts_fini(dev);
 752         saa7134_input_fini(dev);
 753         saa7134_vbi_fini(dev);
 754         saa7134_tvaudio_fini(dev);
 755         saa7134_video_fini(dev);
 756         return 0;
 757 }
 758
 759 static void must_configure_manually(int has_eeprom)
 760 {
 761         unsigned int i,p;
 762
 763         if (!has_eeprom)
 764                 pr_warn("saa7134: <rant>\n"
 765                         "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 766                         "saa7134:  cents for a eeprom, thus your pci board has no\n"
 767                         "saa7134:  subsystem ID and I can't identify it automatically\n"
 768                         "saa7134: </rant>\n"
 769                         "saa7134: I feel better now.  Ok, here are the good news:\n"
 770                         "saa7134: You can use the card=<nr> insmod option to specify\n"
 771                         "saa7134: which board do you have.  The list:\n");
 772         else
 773                 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 774                         "saa7134: insmod option to specify which board do you have, but this is\n"
 775                         "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 776                         "saa7134: for support at linux-media@vger.kernel.org.\n"
 777                         "saa7134: The supported cards are:\n");
 778
 779         for (i = 0; i < saa7134_bcount; i++) {
 780                 pr_warn("saa7134:   card=%d -> %-40.40s",
 781                        i,saa7134_boards[i].name);
 782                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 783                         if (saa7134_pci_tbl[p].driver_data != i)
 784                                 continue;
 785                         pr_cont(" %04x:%04x",
 786                                saa7134_pci_tbl[p].subvendor,
 787                                saa7134_pci_tbl[p].subdevice);
 788                 }
 789                 pr_cont("\n");
 790         }
 791 }
 792
 793 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
 794 {
 795
 796 #ifdef CONFIG_MEDIA_CONTROLLER
 797         if (!dev->media_dev)
 798                 return;
 799         media_device_unregister(dev->media_dev);
 800         media_device_cleanup(dev->media_dev);
 801         kfree(dev->media_dev);
 802         dev->media_dev = NULL;
 803 #endif
 804 }
 805
 806 static void saa7134_media_release(struct saa7134_dev *dev)
 807 {
 808 #ifdef CONFIG_MEDIA_CONTROLLER
 809         int i;
 810
 811         for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
 812                 media_device_unregister_entity(&dev->input_ent[i]);
 813 #endif
 814 }
 815
 816 #if defined(CONFIG_MEDIA_CONTROLLER)
 817 static void saa7134_create_entities(struct saa7134_dev *dev)
 818 {
 819         int ret, i;
 820         struct media_entity *entity;
 821         struct media_entity *decoder = NULL;
 822
 823         /* Check if it is using an external analog TV demod */
 824         media_device_for_each_entity(entity, dev->media_dev) {
 825                 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 826                         decoder = entity;
 827                         break;
 828                 }
 829         }
 830
 831         /*
 832          * saa713x is not using an external ATV demod.
 833          * Register the internal one
 834          */
 835         if (!decoder) {
 836                 dev->demod.name = "saa713x";
 837                 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
 838                 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
 839                 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 840                 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
 841                 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
 842
 843                 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
 844                                              dev->demod_pad);
 845                 if (ret < 0)
 846                         pr_err("failed to initialize demod pad!\n");
 847
 848                 ret = media_device_register_entity(dev->media_dev, &dev->demod);
 849                 if (ret < 0)
 850                         pr_err("failed to register demod entity!\n");
 851
 852                 dev->decoder = &dev->demod;
 853         } else {
 854                 dev->decoder = decoder;
 855         }
 856
 857         /* Initialize Video, VBI and Radio pads */
 858         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
 859         ret = media_entity_pads_init(&dev->video_dev->entity, 1,
 860                                      &dev->video_pad);
 861         if (ret < 0)
 862                 pr_err("failed to initialize video media entity!\n");
 863
 864         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 865         ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
 866                                         &dev->vbi_pad);
 867         if (ret < 0)
 868                 pr_err("failed to initialize vbi media entity!\n");
 869
 870         /* Create entities for each input connector */
 871         for (i = 0; i < SAA7134_INPUT_MAX; i++) {
 872                 struct media_entity *ent = &dev->input_ent[i];
 873                 struct saa7134_input *in = &card_in(dev, i);
 874
 875                 if (in->type == SAA7134_NO_INPUT)
 876                         break;
 877
 878                 /* This input uses the S-Video connector */
 879                 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
 880                         continue;
 881
 882                 ent->name = saa7134_input_name[in->type];
 883                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
 884                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 885
 886                 switch (in->type) {
 887                 case SAA7134_INPUT_COMPOSITE:
 888                 case SAA7134_INPUT_COMPOSITE0:
 889                 case SAA7134_INPUT_COMPOSITE1:
 890                 case SAA7134_INPUT_COMPOSITE2:
 891                 case SAA7134_INPUT_COMPOSITE3:
 892                 case SAA7134_INPUT_COMPOSITE4:
 893                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 894                         break;
 895                 case SAA7134_INPUT_SVIDEO:
 896                 case SAA7134_INPUT_SVIDEO0:
 897                 case SAA7134_INPUT_SVIDEO1:
 898                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 899                         break;
 900                 default:
 901                         /*
 902                          * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
 903                          *
 904                          * Please notice that neither SAA7134_INPUT_MUTE or
 905                          * SAA7134_INPUT_RADIO are defined at
 906                          * saa7134_board.input.
 907                          */
 908                         ent->function = MEDIA_ENT_F_CONN_RF;
 909                         break;
 910                 }
 911
 912                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 913                 if (ret < 0)
 914                         pr_err("failed to initialize input pad[%d]!\n", i);
 915
 916                 ret = media_device_register_entity(dev->media_dev, ent);
 917                 if (ret < 0)
 918                         pr_err("failed to register input entity %d!\n", i);
 919         }
 920
 921         /* Create input for Radio RF connector */
 922         if (card_has_radio(dev)) {
 923                 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
 924                 struct media_entity *ent = &dev->input_ent[i];
 925
 926                 ent->name = saa7134_input_name[in->type];
 927                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
 928                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 929                 ent->function = MEDIA_ENT_F_CONN_RF;
 930
 931                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 932                 if (ret < 0)
 933                         pr_err("failed to initialize input pad[%d]!\n", i);
 934
 935                 ret = media_device_register_entity(dev->media_dev, ent);
 936                 if (ret < 0)
 937                         pr_err("failed to register input entity %d!\n", i);
 938         }
 939 }
 940 #endif
 941
 942 static struct video_device *vdev_init(struct saa7134_dev *dev,
 943                                       struct video_device *template,
 944                                       char *type)
 945 {
 946         struct video_device *vfd;
 947
 948         vfd = video_device_alloc();
 949         if (NULL == vfd)
 950                 return NULL;
 951         *vfd = *template;
 952         vfd->v4l2_dev  = &dev->v4l2_dev;
 953         vfd->release = video_device_release;
 954         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 955                  dev->name, type, saa7134_boards[dev->board].name);
 956         video_set_drvdata(vfd, dev);
 957         return vfd;
 958 }
 959
 960 static void saa7134_unregister_video(struct saa7134_dev *dev)
 961 {
 962         saa7134_media_release(dev);
 963
 964         if (dev->video_dev) {
 965                 if (video_is_registered(dev->video_dev))
 966                         vb2_video_unregister_device(dev->video_dev);
 967                 else
 968                         video_device_release(dev->video_dev);
 969                 dev->video_dev = NULL;
 970         }
 971         if (dev->vbi_dev) {
 972                 if (video_is_registered(dev->vbi_dev))
 973                         vb2_video_unregister_device(dev->vbi_dev);
 974                 else
 975                         video_device_release(dev->vbi_dev);
 976                 dev->vbi_dev = NULL;
 977         }
 978         if (dev->radio_dev) {
 979                 if (video_is_registered(dev->radio_dev))
 980                         vb2_video_unregister_device(dev->radio_dev);
 981                 else
 982                         video_device_release(dev->radio_dev);
 983                 dev->radio_dev = NULL;
 984         }
 985 }
 986
 987 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 988                             struct saa7134_dev *dev)
 989 {
 990         int err;
 991
 992         if (NULL != dev->mops)
 993                 return;
 994         if (saa7134_boards[dev->board].mpeg != ops->type)
 995                 return;
 996         err = ops->init(dev);
 997         if (0 != err)
 998                 return;
 999         dev->mops = ops;
1000 }
1001
1002 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1003                             struct saa7134_dev *dev)
1004 {
1005         if (NULL == dev->mops)
1006                 return;
1007         if (dev->mops != ops)
1008                 return;
1009         dev->mops->fini(dev);
1010         dev->mops = NULL;
1011 }
1012
1013 static int saa7134_initdev(struct pci_dev *pci_dev,
1014                            const struct pci_device_id *pci_id)
1015 {
1016         struct saa7134_dev *dev;
1017         struct saa7134_mpeg_ops *mops;
1018         int err;
1019
1020         if (saa7134_devcount == SAA7134_MAXBOARDS)
1021                 return -ENOMEM;
1022
1023         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1024         if (NULL == dev)
1025                 return -ENOMEM;
1026
1027         dev->nr = saa7134_devcount;
1028         sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1029
1030 #ifdef CONFIG_MEDIA_CONTROLLER
1031         dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1032         if (!dev->media_dev) {
1033                 err = -ENOMEM;
1034                 goto fail0;
1035         }
1036         media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1037         dev->v4l2_dev.mdev = dev->media_dev;
1038 #endif
1039
1040         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1041         if (err)
1042                 goto fail0;
1043
1044         /* pci init */
1045         dev->pci = pci_dev;
1046         if (pci_enable_device(pci_dev)) {
1047                 err = -EIO;
1048                 goto fail1;
1049         }
1050
1051         /* pci quirks */
1052         if (pci_pci_problems) {
1053                 if (pci_pci_problems & PCIPCI_TRITON)
1054                         pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1055                 if (pci_pci_problems & PCIPCI_NATOMA)
1056                         pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1057                 if (pci_pci_problems & PCIPCI_VIAETBF)
1058                         pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1059                 if (pci_pci_problems & PCIPCI_VSFX)
1060                         pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1061 #ifdef PCIPCI_ALIMAGIK
1062                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1063                         pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1064                                dev->name);
1065                         latency = 0x0A;
1066                 }
1067 #endif
1068                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1069                         pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1070                                 dev->name);
1071                         if (!saa7134_no_overlay) {
1072                                 pr_info("%s: quirk: overlay mode will be disabled.\n",
1073                                                 dev->name);
1074                                 saa7134_no_overlay = 1;
1075                         } else {
1076                                 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1077                                                 dev->name);
1078                         }
1079                 }
1080         }
1081         if (UNSET != latency) {
1082                 pr_info("%s: setting pci latency timer to %d\n",
1083                        dev->name,latency);
1084                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1085         }
1086
1087         /* print pci info */
1088         dev->pci_rev = pci_dev->revision;
1089         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1090         pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1091                 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1092                 dev->pci_lat,
1093                 (unsigned long long)pci_resource_start(pci_dev, 0));
1094         pci_set_master(pci_dev);
1095         err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1096         if (err) {
1097                 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1098                 goto fail1;
1099         }
1100
1101         /* board config */
1102         dev->board = pci_id->driver_data;
1103         if ((unsigned)card[dev->nr] < saa7134_bcount)
1104                 dev->board = card[dev->nr];
1105         if (SAA7134_BOARD_UNKNOWN == dev->board)
1106                 must_configure_manually(0);
1107         else if (SAA7134_BOARD_NOAUTO == dev->board) {
1108                 must_configure_manually(1);
1109                 dev->board = SAA7134_BOARD_UNKNOWN;
1110         }
1111         dev->autodetected = card[dev->nr] != dev->board;
1112         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1113         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1114         dev->radio_type = saa7134_boards[dev->board].radio_type;
1115         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1116         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1117         if (UNSET != tuner[dev->nr])
1118                 dev->tuner_type = tuner[dev->nr];
1119         pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1120                 dev->name,pci_dev->subsystem_vendor,
1121                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1122                 dev->board, dev->autodetected ?
1123                 "autodetected" : "insmod option");
1124
1125         /* get mmio */
1126         if (!request_mem_region(pci_resource_start(pci_dev,0),
1127                                 pci_resource_len(pci_dev,0),
1128                                 dev->name)) {
1129                 err = -EBUSY;
1130                 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1131                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1132                 goto fail1;
1133         }
1134         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1135                              pci_resource_len(pci_dev, 0));
1136         dev->bmmio = (__u8 __iomem *)dev->lmmio;
1137         if (NULL == dev->lmmio) {
1138                 err = -EIO;
1139                 pr_err("%s: can't ioremap() MMIO memory\n",
1140                        dev->name);
1141                 goto fail2;
1142         }
1143
1144         /* initialize hardware #1 */
1145         saa7134_board_init1(dev);
1146         saa7134_hwinit1(dev);
1147
1148         /* get irq */
1149         err = request_irq(pci_dev->irq, saa7134_irq,
1150                           IRQF_SHARED, dev->name, dev);
1151         if (err < 0) {
1152                 pr_err("%s: can't get IRQ %d\n",
1153                        dev->name,pci_dev->irq);
1154                 goto fail3;
1155         }
1156
1157         /* wait a bit, register i2c bus */
1158         msleep(100);
1159         saa7134_i2c_register(dev);
1160         saa7134_board_init2(dev);
1161
1162         saa7134_hwinit2(dev);
1163
1164         /* load i2c helpers */
1165         if (card_is_empress(dev)) {
1166                 dev->empress_sd =
1167                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1168                                 "saa6752hs",
1169                                 saa7134_boards[dev->board].empress_addr, NULL);
1170
1171                 if (dev->empress_sd)
1172                         dev->empress_sd->grp_id = GRP_EMPRESS;
1173         }
1174
1175         if (saa7134_boards[dev->board].rds_addr) {
1176                 struct v4l2_subdev *sd;
1177
1178                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1179                                 &dev->i2c_adap, "saa6588",
1180                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1181                 if (sd) {
1182                         pr_info("%s: found RDS decoder\n", dev->name);
1183                         dev->has_rds = 1;
1184                 }
1185         }
1186
1187         mutex_lock(&saa7134_devlist_lock);
1188         list_for_each_entry(mops, &mops_list, next)
1189                 mpeg_ops_attach(mops, dev);
1190         list_add_tail(&dev->devlist, &saa7134_devlist);
1191         mutex_unlock(&saa7134_devlist_lock);
1192
1193         /* check for signal */
1194         saa7134_irq_video_signalchange(dev);
1195
1196         if (TUNER_ABSENT != dev->tuner_type)
1197                 saa_call_all(dev, core, s_power, 0);
1198
1199         /* register v4l devices */
1200         if (saa7134_no_overlay > 0)
1201                 pr_info("%s: Overlay support disabled.\n", dev->name);
1202
1203         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1204         dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1205         dev->video_dev->lock = &dev->lock;
1206         dev->video_dev->queue = &dev->video_vbq;
1207         dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1208                                       V4L2_CAP_VIDEO_CAPTURE;
1209         if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1210                 dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1211
1212         if (saa7134_no_overlay <= 0)
1213                 dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1214
1215         err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1216                                     video_nr[dev->nr]);
1217         if (err < 0) {
1218                 pr_info("%s: can't register video device\n",
1219                        dev->name);
1220                 goto fail4;
1221         }
1222         pr_info("%s: registered device %s [v4l2]\n",
1223                dev->name, video_device_node_name(dev->video_dev));
1224
1225         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1226         dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1227         dev->vbi_dev->lock = &dev->lock;
1228         dev->vbi_dev->queue = &dev->vbi_vbq;
1229         dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1230                                     V4L2_CAP_VBI_CAPTURE;
1231         if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1232                 dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1233
1234         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1235                                     vbi_nr[dev->nr]);
1236         if (err < 0)
1237                 goto fail4;
1238         pr_info("%s: registered device %s\n",
1239                dev->name, video_device_node_name(dev->vbi_dev));
1240
1241         if (card_has_radio(dev)) {
1242                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1243                 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1244                 dev->radio_dev->lock = &dev->lock;
1245                 dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1246                 if (dev->has_rds)
1247                         dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1248                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1249                                             radio_nr[dev->nr]);
1250                 if (err < 0)
1251                         goto fail4;
1252                 pr_info("%s: registered device %s\n",
1253                        dev->name, video_device_node_name(dev->radio_dev));
1254         }
1255
1256 #ifdef CONFIG_MEDIA_CONTROLLER
1257         saa7134_create_entities(dev);
1258
1259         err = v4l2_mc_create_media_graph(dev->media_dev);
1260         if (err) {
1261                 pr_err("failed to create media graph\n");
1262                 goto fail4;
1263         }
1264 #endif
1265         /* everything worked */
1266         saa7134_devcount++;
1267
1268         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1269                 saa7134_dmasound_init(dev);
1270
1271         request_submodules(dev);
1272
1273         /*
1274          * Do it at the end, to reduce dynamic configuration changes during
1275          * the device init. Yet, as request_modules() can be async, the
1276          * topology will likely change after load the saa7134 subdrivers.
1277          */
1278 #ifdef CONFIG_MEDIA_CONTROLLER
1279         err = media_device_register(dev->media_dev);
1280         if (err)
1281                 goto fail4;
1282 #endif
1283
1284         return 0;
1285
1286  fail4:
1287         saa7134_unregister_video(dev);
1288         saa7134_i2c_unregister(dev);
1289         free_irq(pci_dev->irq, dev);
1290  fail3:
1291         saa7134_hwfini(dev);
1292         iounmap(dev->lmmio);
1293  fail2:
1294         release_mem_region(pci_resource_start(pci_dev,0),
1295                            pci_resource_len(pci_dev,0));
1296  fail1:
1297         v4l2_device_unregister(&dev->v4l2_dev);
1298  fail0:
1299 #ifdef CONFIG_MEDIA_CONTROLLER
1300         kfree(dev->media_dev);
1301 #endif
1302         kfree(dev);
1303         return err;
1304 }
1305
1306 static void saa7134_finidev(struct pci_dev *pci_dev)
1307 {
1308         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1309         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1310         struct saa7134_mpeg_ops *mops;
1311
1312         flush_request_submodules(dev);
1313
1314         /* Release DMA sound modules if present */
1315         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1316                 saa7134_dmasound_exit(dev);
1317         }
1318
1319         /* debugging ... */
1320         if (irq_debug) {
1321                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1322                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1323                 print_irqstatus(dev,42,report,status);
1324         }
1325
1326         /* disable peripheral devices */
1327         saa_writeb(SAA7134_SPECIAL_MODE,0);
1328
1329         /* shutdown hardware */
1330         saa_writel(SAA7134_IRQ1,0);
1331         saa_writel(SAA7134_IRQ2,0);
1332         saa_writel(SAA7134_MAIN_CTRL,0);
1333
1334         /* shutdown subsystems */
1335         saa7134_hwfini(dev);
1336
1337         /* unregister */
1338         mutex_lock(&saa7134_devlist_lock);
1339         list_del(&dev->devlist);
1340         list_for_each_entry(mops, &mops_list, next)
1341                 mpeg_ops_detach(mops, dev);
1342         mutex_unlock(&saa7134_devlist_lock);
1343         saa7134_devcount--;
1344
1345         saa7134_i2c_unregister(dev);
1346         saa7134_unregister_video(dev);
1347
1348
1349         /* the DMA sound modules should be unloaded before reaching
1350            this, but just in case they are still present... */
1351         if (dev->dmasound.priv_data != NULL) {
1352                 free_irq(pci_dev->irq, &dev->dmasound);
1353                 dev->dmasound.priv_data = NULL;
1354         }
1355
1356
1357         /* release resources */
1358         free_irq(pci_dev->irq, dev);
1359         iounmap(dev->lmmio);
1360         release_mem_region(pci_resource_start(pci_dev,0),
1361                            pci_resource_len(pci_dev,0));
1362
1363         v4l2_device_unregister(&dev->v4l2_dev);
1364
1365         saa7134_unregister_media_device(dev);
1366
1367         /* free memory */
1368         kfree(dev);
1369 }
1370
1371 /* resends a current buffer in queue after resume */
1372 static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1373                                                  struct saa7134_dmaqueue *q)
1374 {
1375         struct saa7134_buf *buf, *next;
1376
1377         assert_spin_locked(&dev->slock);
1378
1379         buf  = q->curr;
1380         next = buf;
1381         core_dbg("buffer_requeue\n");
1382
1383         if (!buf)
1384                 return 0;
1385
1386         core_dbg("buffer_requeue : resending active buffer\n");
1387
1388         if (!list_empty(&q->queue))
1389                 next = list_entry(q->queue.next, struct saa7134_buf,
1390                                           entry);
1391         buf->activate(dev, buf, next);
1392
1393         return 0;
1394 }
1395
1396 static int __maybe_unused saa7134_suspend(struct device *dev_d)
1397 {
1398         struct pci_dev *pci_dev = to_pci_dev(dev_d);
1399         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1400         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1401
1402         /* disable overlay - apps should enable it explicitly on resume*/
1403         dev->ovenable = 0;
1404
1405         /* Disable interrupts, DMA, and rest of the chip*/
1406         saa_writel(SAA7134_IRQ1, 0);
1407         saa_writel(SAA7134_IRQ2, 0);
1408         saa_writel(SAA7134_MAIN_CTRL, 0);
1409
1410         dev->insuspend = 1;
1411         synchronize_irq(pci_dev->irq);
1412
1413         /* ACK interrupts once more, just in case,
1414                 since the IRQ handler won't ack them anymore*/
1415
1416         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1417
1418         /* Disable timeout timers - if we have active buffers, we will
1419            fill them on resume*/
1420
1421         del_timer(&dev->video_q.timeout);
1422         del_timer(&dev->vbi_q.timeout);
1423         del_timer(&dev->ts_q.timeout);
1424
1425         if (dev->remote && dev->remote->dev->users)
1426                 saa7134_ir_close(dev->remote->dev);
1427
1428         return 0;
1429 }
1430
1431 static int __maybe_unused saa7134_resume(struct device *dev_d)
1432 {
1433         struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1434         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1435         unsigned long flags;
1436
1437         /* Do things that are done in saa7134_initdev ,
1438                 except of initializing memory structures.*/
1439
1440         saa7134_board_init1(dev);
1441
1442         /* saa7134_hwinit1 */
1443         if (saa7134_boards[dev->board].video_out)
1444                 saa7134_videoport_init(dev);
1445         if (card_has_mpeg(dev))
1446                 saa7134_ts_init_hw(dev);
1447         if (dev->remote && dev->remote->dev->users)
1448                 saa7134_ir_open(dev->remote->dev);
1449         saa7134_hw_enable1(dev);
1450
1451         msleep(100);
1452
1453         saa7134_board_init2(dev);
1454
1455         /*saa7134_hwinit2*/
1456         saa7134_set_tvnorm_hw(dev);
1457         saa7134_tvaudio_setmute(dev);
1458         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1459         saa7134_tvaudio_init(dev);
1460         saa7134_enable_i2s(dev);
1461         saa7134_hw_enable2(dev);
1462
1463         saa7134_irq_video_signalchange(dev);
1464
1465         /*resume unfinished buffer(s)*/
1466         spin_lock_irqsave(&dev->slock, flags);
1467         saa7134_buffer_requeue(dev, &dev->video_q);
1468         saa7134_buffer_requeue(dev, &dev->vbi_q);
1469         saa7134_buffer_requeue(dev, &dev->ts_q);
1470
1471         /* FIXME: Disable DMA audio sound - temporary till proper support
1472                   is implemented*/
1473
1474         dev->dmasound.dma_running = 0;
1475
1476         /* start DMA now*/
1477         dev->insuspend = 0;
1478         smp_wmb();
1479         saa7134_set_dmabits(dev);
1480         spin_unlock_irqrestore(&dev->slock, flags);
1481
1482         return 0;
1483 }
1484
1485 /* ----------------------------------------------------------- */
1486
1487 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1488 {
1489         struct saa7134_dev *dev;
1490
1491         mutex_lock(&saa7134_devlist_lock);
1492         list_for_each_entry(dev, &saa7134_devlist, devlist)
1493                 mpeg_ops_attach(ops, dev);
1494         list_add_tail(&ops->next,&mops_list);
1495         mutex_unlock(&saa7134_devlist_lock);
1496         return 0;
1497 }
1498
1499 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1500 {
1501         struct saa7134_dev *dev;
1502
1503         mutex_lock(&saa7134_devlist_lock);
1504         list_del(&ops->next);
1505         list_for_each_entry(dev, &saa7134_devlist, devlist)
1506                 mpeg_ops_detach(ops, dev);
1507         mutex_unlock(&saa7134_devlist_lock);
1508 }
1509
1510 EXPORT_SYMBOL(saa7134_ts_register);
1511 EXPORT_SYMBOL(saa7134_ts_unregister);
1512
1513 /* ----------------------------------------------------------- */
1514
1515 static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1516
1517 static struct pci_driver saa7134_pci_driver = {
1518         .name     = "saa7134",
1519         .id_table = saa7134_pci_tbl,
1520         .probe    = saa7134_initdev,
1521         .remove   = saa7134_finidev,
1522         .driver.pm = &saa7134_pm_ops,
1523 };
1524
1525 static int __init saa7134_init(void)
1526 {
1527         INIT_LIST_HEAD(&saa7134_devlist);
1528         pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1529                SAA7134_VERSION);
1530         return pci_register_driver(&saa7134_pci_driver);
1531 }
1532
1533 static void __exit saa7134_fini(void)
1534 {
1535         pci_unregister_driver(&saa7134_pci_driver);
1536 }
1537
1538 module_init(saa7134_init);
1539 module_exit(saa7134_fini);
1540
1541 /* ----------------------------------------------------------- */
1542
1543 EXPORT_SYMBOL(saa7134_set_gpio);
1544 EXPORT_SYMBOL(saa7134_boards);
1545
1546 /* ----------------- for the DMA sound modules --------------- */
1547
1548 EXPORT_SYMBOL(saa7134_dmasound_init);
1549 EXPORT_SYMBOL(saa7134_dmasound_exit);
1550 EXPORT_SYMBOL(saa7134_pgtable_free);
1551 EXPORT_SYMBOL(saa7134_pgtable_build);
1552 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1553 EXPORT_SYMBOL(saa7134_set_dmabits);