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  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "saa7134.h"
  24 #include "saa7134-reg.h"
  25
  26 #include <linux/init.h>
  27 #include <linux/list.h>
  28 #include <linux/module.h>
  29 #include <linux/kernel.h>
  30 #include <linux/slab.h>
  31 #include <linux/kmod.h>
  32 #include <linux/sound.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/delay.h>
  35 #include <linux/mutex.h>
  36 #include <linux/dma-mapping.h>
  37 #include <linux/pm.h>
  38
  39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  41 MODULE_LICENSE("GPL");
  42 MODULE_VERSION(SAA7134_VERSION);
  43
  44
  45 /* ------------------------------------------------------------------ */
  46
  47 static unsigned int irq_debug;
  48 module_param(irq_debug, int, 0644);
  49 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  50
  51 static unsigned int core_debug;
  52 module_param(core_debug, int, 0644);
  53 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  54
  55 static unsigned int gpio_tracking;
  56 module_param(gpio_tracking, int, 0644);
  57 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  58
  59 static unsigned int alsa = 1;
  60 module_param(alsa, int, 0644);
  61 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  62
  63 static unsigned int latency = UNSET;
  64 module_param(latency, int, 0444);
  65 MODULE_PARM_DESC(latency,"pci latency timer");
  66
  67 int saa7134_no_overlay=-1;
  68 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  69 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
  70                 " [some VIA/SIS chipsets are known to have problem with overlay]");
  71
  72 bool saa7134_userptr;
  73 module_param(saa7134_userptr, bool, 0644);
  74 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
  75
  76 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  77 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  78 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  79 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  80 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  81
  82
  83 module_param_array(video_nr, int, NULL, 0444);
  84 module_param_array(vbi_nr,   int, NULL, 0444);
  85 module_param_array(radio_nr, int, NULL, 0444);
  86 module_param_array(tuner,    int, NULL, 0444);
  87 module_param_array(card,     int, NULL, 0444);
  88
  89 MODULE_PARM_DESC(video_nr, "video device number");
  90 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  91 MODULE_PARM_DESC(radio_nr, "radio device number");
  92 MODULE_PARM_DESC(tuner,    "tuner type");
  93 MODULE_PARM_DESC(card,     "card type");
  94
  95 DEFINE_MUTEX(saa7134_devlist_lock);
  96 EXPORT_SYMBOL(saa7134_devlist_lock);
  97 LIST_HEAD(saa7134_devlist);
  98 EXPORT_SYMBOL(saa7134_devlist);
  99 static LIST_HEAD(mops_list);
 100 static unsigned int saa7134_devcount;
 101
 102 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
 103 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
 104
 105 #define core_dbg(fmt, arg...) do { \
 106         if (core_debug) \
 107                 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
 108         } while (0)
 109
 110 #define irq_dbg(level, fmt, arg...)  do {\
 111         if (irq_debug > level) \
 112                 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
 113         } while (0)
 114
 115 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
 116 {
 117         unsigned long mode,status;
 118
 119         if (!gpio_tracking)
 120                 return;
 121         /* rising SAA7134_GPIO_GPRESCAN reads the status */
 122         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 123         saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 124         mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 125         status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 126         core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 127                dev->name, mode, (~mode) & status, mode & status, msg);
 128 }
 129
 130 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 131 {
 132         u32 index, bitval;
 133
 134         index = 1 << bit_no;
 135         switch (value) {
 136         case 0: /* static value */
 137         case 1:
 138                 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
 139                 /* turn sync mode off if necessary */
 140                 if (index & 0x00c00000)
 141                         saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 142                 if (value)
 143                         bitval = index;
 144                 else
 145                         bitval = 0;
 146                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 147                 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 148                 break;
 149         case 3: /* tristate */
 150                 core_dbg("setting GPIO%d to tristate\n", bit_no);
 151                 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 152                 break;
 153         }
 154 }
 155
 156 /* ------------------------------------------------------------------ */
 157
 158
 159 /* ----------------------------------------------------------- */
 160 /* delayed request_module                                      */
 161
 162 #if defined(CONFIG_MODULES) && defined(MODULE)
 163
 164 static void request_module_async(struct work_struct *work){
 165         struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 166         if (card_is_empress(dev))
 167                 request_module("saa7134-empress");
 168         if (card_is_dvb(dev))
 169                 request_module("saa7134-dvb");
 170         if (card_is_go7007(dev))
 171                 request_module("saa7134-go7007");
 172         if (alsa) {
 173                 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 174                         request_module("saa7134-alsa");
 175         }
 176 }
 177
 178 static void request_submodules(struct saa7134_dev *dev)
 179 {
 180         INIT_WORK(&dev->request_module_wk, request_module_async);
 181         schedule_work(&dev->request_module_wk);
 182 }
 183
 184 static void flush_request_submodules(struct saa7134_dev *dev)
 185 {
 186         flush_work(&dev->request_module_wk);
 187 }
 188
 189 #else
 190 #define request_submodules(dev)
 191 #define flush_request_submodules(dev)
 192 #endif /* CONFIG_MODULES */
 193
 194 /* ------------------------------------------------------------------ */
 195
 196 /* nr of (saa7134-)pages for the given buffer size */
 197 static int saa7134_buffer_pages(int size)
 198 {
 199         size  = PAGE_ALIGN(size);
 200         size += PAGE_SIZE; /* for non-page-aligned buffers */
 201         size /= 4096;
 202         return size;
 203 }
 204
 205 /* calc max # of buffers from size (must not exceed the 4MB virtual
 206  * address space per DMA channel) */
 207 int saa7134_buffer_count(unsigned int size, unsigned int count)
 208 {
 209         unsigned int maxcount;
 210
 211         maxcount = 1024 / saa7134_buffer_pages(size);
 212         if (count > maxcount)
 213                 count = maxcount;
 214         return count;
 215 }
 216
 217 int saa7134_buffer_startpage(struct saa7134_buf *buf)
 218 {
 219         return saa7134_buffer_pages(vb2_plane_size(&buf->vb2, 0)) * buf->vb2.v4l2_buf.index;
 220 }
 221
 222 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 223 {
 224         unsigned long base;
 225         struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2, 0);
 226
 227         base  = saa7134_buffer_startpage(buf) * 4096;
 228         base += dma->sgl[0].offset;
 229         return base;
 230 }
 231
 232 /* ------------------------------------------------------------------ */
 233
 234 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 235 {
 236         __le32       *cpu;
 237         dma_addr_t   dma_addr = 0;
 238
 239         cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 240         if (NULL == cpu)
 241                 return -ENOMEM;
 242         pt->size = SAA7134_PGTABLE_SIZE;
 243         pt->cpu  = cpu;
 244         pt->dma  = dma_addr;
 245         return 0;
 246 }
 247
 248 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 249                           struct scatterlist *list, unsigned int length,
 250                           unsigned int startpage)
 251 {
 252         __le32        *ptr;
 253         unsigned int  i, p;
 254
 255         BUG_ON(NULL == pt || NULL == pt->cpu);
 256
 257         ptr = pt->cpu + startpage;
 258         for (i = 0; i < length; i++, list = sg_next(list)) {
 259                 for (p = 0; p * 4096 < list->length; p++, ptr++)
 260                         *ptr = cpu_to_le32(sg_dma_address(list) +
 261                                                 list->offset + p * 4096);
 262         }
 263         return 0;
 264 }
 265
 266 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 267 {
 268         if (NULL == pt->cpu)
 269                 return;
 270         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 271         pt->cpu = NULL;
 272 }
 273
 274 /* ------------------------------------------------------------------ */
 275
 276 int saa7134_buffer_queue(struct saa7134_dev *dev,
 277                          struct saa7134_dmaqueue *q,
 278                          struct saa7134_buf *buf)
 279 {
 280         struct saa7134_buf *next = NULL;
 281         unsigned long flags;
 282
 283         spin_lock_irqsave(&dev->slock, flags);
 284         core_dbg("buffer_queue %p\n", buf);
 285         if (NULL == q->curr) {
 286                 if (!q->need_two) {
 287                         q->curr = buf;
 288                         buf->activate(dev, buf, NULL);
 289                 } else if (list_empty(&q->queue)) {
 290                         list_add_tail(&buf->entry, &q->queue);
 291                 } else {
 292                         next = list_entry(q->queue.next, struct saa7134_buf,
 293                                           entry);
 294                         q->curr = buf;
 295                         buf->activate(dev, buf, next);
 296                 }
 297         } else {
 298                 list_add_tail(&buf->entry, &q->queue);
 299         }
 300         spin_unlock_irqrestore(&dev->slock, flags);
 301         return 0;
 302 }
 303
 304 void saa7134_buffer_finish(struct saa7134_dev *dev,
 305                            struct saa7134_dmaqueue *q,
 306                            unsigned int state)
 307 {
 308         core_dbg("buffer_finish %p\n", q->curr);
 309
 310         /* finish current buffer */
 311         v4l2_get_timestamp(&q->curr->vb2.v4l2_buf.timestamp);
 312         q->curr->vb2.v4l2_buf.sequence = q->seq_nr++;
 313         vb2_buffer_done(&q->curr->vb2, state);
 314         q->curr = NULL;
 315 }
 316
 317 void saa7134_buffer_next(struct saa7134_dev *dev,
 318                          struct saa7134_dmaqueue *q)
 319 {
 320         struct saa7134_buf *buf,*next = NULL;
 321
 322         assert_spin_locked(&dev->slock);
 323         BUG_ON(NULL != q->curr);
 324
 325         if (!list_empty(&q->queue)) {
 326                 /* activate next one from queue */
 327                 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
 328                 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
 329                         buf, q->queue.prev, q->queue.next);
 330                 list_del(&buf->entry);
 331                 if (!list_empty(&q->queue))
 332                         next = list_entry(q->queue.next, struct saa7134_buf, entry);
 333                 q->curr = buf;
 334                 buf->activate(dev, buf, next);
 335                 core_dbg("buffer_next #2 prev=%p/next=%p\n",
 336                         q->queue.prev, q->queue.next);
 337         } else {
 338                 /* nothing to do -- just stop DMA */
 339                 core_dbg("buffer_next %p\n", NULL);
 340                 saa7134_set_dmabits(dev);
 341                 del_timer(&q->timeout);
 342         }
 343 }
 344
 345 void saa7134_buffer_timeout(unsigned long data)
 346 {
 347         struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue *)data;
 348         struct saa7134_dev *dev = q->dev;
 349         unsigned long flags;
 350
 351         spin_lock_irqsave(&dev->slock, flags);
 352
 353         /* try to reset the hardware (SWRST) */
 354         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 355         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 356         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 357
 358         /* flag current buffer as failed,
 359            try to start over with the next one. */
 360         if (q->curr) {
 361                 core_dbg("timeout on %p\n", q->curr);
 362                 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
 363         }
 364         saa7134_buffer_next(dev, q);
 365         spin_unlock_irqrestore(&dev->slock, flags);
 366 }
 367
 368 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
 369 {
 370         unsigned long flags;
 371         struct list_head *pos, *n;
 372         struct saa7134_buf *tmp;
 373
 374         spin_lock_irqsave(&dev->slock, flags);
 375         if (!list_empty(&q->queue)) {
 376                 list_for_each_safe(pos, n, &q->queue) {
 377                          tmp = list_entry(pos, struct saa7134_buf, entry);
 378                          vb2_buffer_done(&tmp->vb2, VB2_BUF_STATE_ERROR);
 379                          list_del(pos);
 380                          tmp = NULL;
 381                 }
 382         }
 383         spin_unlock_irqrestore(&dev->slock, flags);
 384         saa7134_buffer_timeout((unsigned long)q); /* also calls del_timer(&q->timeout) */
 385 }
 386 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 387
 388 /* ------------------------------------------------------------------ */
 389
 390 int saa7134_set_dmabits(struct saa7134_dev *dev)
 391 {
 392         u32 split, task=0, ctrl=0, irq=0;
 393         enum v4l2_field cap = V4L2_FIELD_ANY;
 394         enum v4l2_field ov  = V4L2_FIELD_ANY;
 395
 396         assert_spin_locked(&dev->slock);
 397
 398         if (dev->insuspend)
 399                 return 0;
 400
 401         /* video capture -- dma 0 + video task A */
 402         if (dev->video_q.curr) {
 403                 task |= 0x01;
 404                 ctrl |= SAA7134_MAIN_CTRL_TE0;
 405                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 406                         SAA7134_IRQ1_INTE_RA0_0;
 407                 cap = dev->field;
 408         }
 409
 410         /* video capture -- dma 1+2 (planar modes) */
 411         if (dev->video_q.curr && dev->fmt->planar) {
 412                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
 413                         SAA7134_MAIN_CTRL_TE5;
 414         }
 415
 416         /* screen overlay -- dma 0 + video task B */
 417         if (dev->ovenable) {
 418                 task |= 0x10;
 419                 ctrl |= SAA7134_MAIN_CTRL_TE1;
 420                 ov = dev->ovfield;
 421         }
 422
 423         /* vbi capture -- dma 0 + vbi task A+B */
 424         if (dev->vbi_q.curr) {
 425                 task |= 0x22;
 426                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
 427                         SAA7134_MAIN_CTRL_TE3;
 428                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 429                         SAA7134_IRQ1_INTE_RA0_6 |
 430                         SAA7134_IRQ1_INTE_RA0_5 |
 431                         SAA7134_IRQ1_INTE_RA0_4;
 432         }
 433
 434         /* audio capture -- dma 3 */
 435         if (dev->dmasound.dma_running) {
 436                 ctrl |= SAA7134_MAIN_CTRL_TE6;
 437                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 438                         SAA7134_IRQ1_INTE_RA3_0;
 439         }
 440
 441         /* TS capture -- dma 5 */
 442         if (dev->ts_q.curr) {
 443                 ctrl |= SAA7134_MAIN_CTRL_TE5;
 444                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 445                         SAA7134_IRQ1_INTE_RA2_0;
 446         }
 447
 448         /* set task conditions + field handling */
 449         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 450                 /* default config -- use full frames */
 451                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 452                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 453                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 454                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 455                 split = 0;
 456         } else {
 457                 /* split fields between tasks */
 458                 if (V4L2_FIELD_TOP == cap) {
 459                         /* odd A, even B, repeat */
 460                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 461                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 462                 } else {
 463                         /* odd B, even A, repeat */
 464                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 465                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 466                 }
 467                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 468                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 469                 split = 1;
 470         }
 471
 472         /* irqs */
 473         saa_writeb(SAA7134_REGION_ENABLE, task);
 474         saa_writel(SAA7134_IRQ1,          irq);
 475         saa_andorl(SAA7134_MAIN_CTRL,
 476                    SAA7134_MAIN_CTRL_TE0 |
 477                    SAA7134_MAIN_CTRL_TE1 |
 478                    SAA7134_MAIN_CTRL_TE2 |
 479                    SAA7134_MAIN_CTRL_TE3 |
 480                    SAA7134_MAIN_CTRL_TE4 |
 481                    SAA7134_MAIN_CTRL_TE5 |
 482                    SAA7134_MAIN_CTRL_TE6,
 483                    ctrl);
 484         core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 485                 task, ctrl, irq, split ? "no" : "yes");
 486
 487         return 0;
 488 }
 489
 490 /* ------------------------------------------------------------------ */
 491 /* IRQ handler + helpers                                              */
 492
 493 static char *irqbits[] = {
 494         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 495         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 496         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 497         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 498 };
 499 #define IRQBITS ARRAY_SIZE(irqbits)
 500
 501 static void print_irqstatus(struct saa7134_dev *dev, int loop,
 502                             unsigned long report, unsigned long status)
 503 {
 504         unsigned int i;
 505
 506         irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 507                 loop, jiffies, report, status);
 508         for (i = 0; i < IRQBITS; i++) {
 509                 if (!(report & (1 << i)))
 510                         continue;
 511                 pr_cont(" %s", irqbits[i]);
 512         }
 513         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 514                 pr_cont(" | RA0=%s,%s,%s,%ld",
 515                         (status & 0x40) ? "vbi"  : "video",
 516                         (status & 0x20) ? "b"    : "a",
 517                         (status & 0x10) ? "odd"  : "even",
 518                         (status & 0x0f));
 519         }
 520         pr_cont("\n");
 521 }
 522
 523 static irqreturn_t saa7134_irq(int irq, void *dev_id)
 524 {
 525         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 526         unsigned long report,status;
 527         int loop, handled = 0;
 528
 529         if (dev->insuspend)
 530                 goto out;
 531
 532         for (loop = 0; loop < 10; loop++) {
 533                 report = saa_readl(SAA7134_IRQ_REPORT);
 534                 status = saa_readl(SAA7134_IRQ_STATUS);
 535
 536                 /* If dmasound support is active and we get a sound report,
 537                  * mask out the report and let the saa7134-alsa module deal
 538                  * with it */
 539                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 540                         (dev->dmasound.priv_data != NULL) )
 541                 {
 542                         irq_dbg(2, "preserving DMA sound interrupt\n");
 543                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 544                 }
 545
 546                 if (0 == report) {
 547                         irq_dbg(2, "no (more) work\n");
 548                         goto out;
 549                 }
 550
 551                 handled = 1;
 552                 saa_writel(SAA7134_IRQ_REPORT,report);
 553                 if (irq_debug)
 554                         print_irqstatus(dev,loop,report,status);
 555
 556
 557                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 558                         (report & SAA7134_IRQ_REPORT_INTL))
 559                                 saa7134_irq_video_signalchange(dev);
 560
 561
 562                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 563                     (status & 0x60) == 0)
 564                         saa7134_irq_video_done(dev,status);
 565
 566                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 567                     (status & 0x40) == 0x40)
 568                         saa7134_irq_vbi_done(dev,status);
 569
 570                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 571                     card_has_mpeg(dev)) {
 572                         if (dev->mops->irq_ts_done != NULL)
 573                                 dev->mops->irq_ts_done(dev, status);
 574                         else
 575                                 saa7134_irq_ts_done(dev, status);
 576                 }
 577
 578                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
 579                         switch (dev->has_remote) {
 580                                 case SAA7134_REMOTE_GPIO:
 581                                         if (!dev->remote)
 582                                                 break;
 583                                         if  (dev->remote->mask_keydown & 0x10000) {
 584                                                 saa7134_input_irq(dev);
 585                                         }
 586                                         break;
 587
 588                                 case SAA7134_REMOTE_I2C:
 589                                         break;                  /* FIXME: invoke I2C get_key() */
 590
 591                                 default:                        /* GPIO16 not used by IR remote */
 592                                         break;
 593                         }
 594                 }
 595
 596                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
 597                         switch (dev->has_remote) {
 598                                 case SAA7134_REMOTE_GPIO:
 599                                         if (!dev->remote)
 600                                                 break;
 601                                         if ((dev->remote->mask_keydown & 0x40000) ||
 602                                             (dev->remote->mask_keyup & 0x40000)) {
 603                                                 saa7134_input_irq(dev);
 604                                         }
 605                                         break;
 606
 607                                 case SAA7134_REMOTE_I2C:
 608                                         break;                  /* FIXME: invoke I2C get_key() */
 609
 610                                 default:                        /* GPIO18 not used by IR remote */
 611                                         break;
 612                         }
 613                 }
 614         }
 615
 616         if (10 == loop) {
 617                 print_irqstatus(dev,loop,report,status);
 618                 if (report & SAA7134_IRQ_REPORT_PE) {
 619                         /* disable all parity error */
 620                         pr_warn("%s/irq: looping -- "
 621                                "clearing PE (parity error!) enable bit\n",dev->name);
 622                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 623                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 624                         /* disable gpio16 IRQ */
 625                         pr_warn("%s/irq: looping -- "
 626                                "clearing GPIO16 enable bit\n",dev->name);
 627                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 628                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 629                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 630                         /* disable gpio18 IRQs */
 631                         pr_warn("%s/irq: looping -- "
 632                                "clearing GPIO18 enable bit\n",dev->name);
 633                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 634                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 635                 } else {
 636                         /* disable all irqs */
 637                         pr_warn("%s/irq: looping -- "
 638                                "clearing all enable bits\n",dev->name);
 639                         saa_writel(SAA7134_IRQ1,0);
 640                         saa_writel(SAA7134_IRQ2,0);
 641                 }
 642         }
 643
 644  out:
 645         return IRQ_RETVAL(handled);
 646 }
 647
 648 /* ------------------------------------------------------------------ */
 649
 650 /* early init (no i2c, no irq) */
 651
 652 static int saa7134_hw_enable1(struct saa7134_dev *dev)
 653 {
 654         /* RAM FIFO config */
 655         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 656         saa_writel(SAA7134_THRESHOULD, 0x02020202);
 657
 658         /* enable audio + video processing */
 659         saa_writel(SAA7134_MAIN_CTRL,
 660                         SAA7134_MAIN_CTRL_VPLLE |
 661                         SAA7134_MAIN_CTRL_APLLE |
 662                         SAA7134_MAIN_CTRL_EXOSC |
 663                         SAA7134_MAIN_CTRL_EVFE1 |
 664                         SAA7134_MAIN_CTRL_EVFE2 |
 665                         SAA7134_MAIN_CTRL_ESFE  |
 666                         SAA7134_MAIN_CTRL_EBDAC);
 667
 668         /*
 669         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 670         * OSS initialization writes to registers via the audio DSP; these
 671         * writes will fail unless the audio clock has been started.  At worst,
 672         * audio will not work.
 673         */
 674
 675         /* enable peripheral devices */
 676         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 677
 678         /* set vertical line numbering start (vbi needs this) */
 679         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 680
 681         return 0;
 682 }
 683
 684 static int saa7134_hwinit1(struct saa7134_dev *dev)
 685 {
 686         core_dbg("hwinit1\n");
 687
 688         saa_writel(SAA7134_IRQ1, 0);
 689         saa_writel(SAA7134_IRQ2, 0);
 690
 691         /* Clear any stale IRQ reports */
 692         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 693
 694         mutex_init(&dev->lock);
 695         spin_lock_init(&dev->slock);
 696
 697         saa7134_track_gpio(dev,"pre-init");
 698         saa7134_video_init1(dev);
 699         saa7134_vbi_init1(dev);
 700         if (card_has_mpeg(dev))
 701                 saa7134_ts_init1(dev);
 702         saa7134_input_init1(dev);
 703
 704         saa7134_hw_enable1(dev);
 705
 706         return 0;
 707 }
 708
 709 /* late init (with i2c + irq) */
 710 static int saa7134_hw_enable2(struct saa7134_dev *dev)
 711 {
 712
 713         unsigned int irq2_mask;
 714
 715         /* enable IRQ's */
 716         irq2_mask =
 717                 SAA7134_IRQ2_INTE_DEC3    |
 718                 SAA7134_IRQ2_INTE_DEC2    |
 719                 SAA7134_IRQ2_INTE_DEC1    |
 720                 SAA7134_IRQ2_INTE_DEC0    |
 721                 SAA7134_IRQ2_INTE_PE      |
 722                 SAA7134_IRQ2_INTE_AR;
 723
 724         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 725                 if (dev->remote->mask_keydown & 0x10000)
 726                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 727                 else {          /* Allow enabling both IRQ edge triggers */
 728                         if (dev->remote->mask_keydown & 0x40000)
 729                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 730                         if (dev->remote->mask_keyup & 0x40000)
 731                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 732                 }
 733         }
 734
 735         if (dev->has_remote == SAA7134_REMOTE_I2C) {
 736                 request_module("ir-kbd-i2c");
 737         }
 738
 739         saa_writel(SAA7134_IRQ1, 0);
 740         saa_writel(SAA7134_IRQ2, irq2_mask);
 741
 742         return 0;
 743 }
 744
 745 static int saa7134_hwinit2(struct saa7134_dev *dev)
 746 {
 747
 748         core_dbg("hwinit2\n");
 749
 750         saa7134_video_init2(dev);
 751         saa7134_tvaudio_init2(dev);
 752
 753         saa7134_hw_enable2(dev);
 754
 755         return 0;
 756 }
 757
 758
 759 /* shutdown */
 760 static int saa7134_hwfini(struct saa7134_dev *dev)
 761 {
 762         core_dbg("hwfini\n");
 763
 764         if (card_has_mpeg(dev))
 765                 saa7134_ts_fini(dev);
 766         saa7134_input_fini(dev);
 767         saa7134_vbi_fini(dev);
 768         saa7134_tvaudio_fini(dev);
 769         saa7134_video_fini(dev);
 770         return 0;
 771 }
 772
 773 static void must_configure_manually(int has_eeprom)
 774 {
 775         unsigned int i,p;
 776
 777         if (!has_eeprom)
 778                 pr_warn("saa7134: <rant>\n"
 779                         "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 780                         "saa7134:  cents for a eeprom, thus your pci board has no\n"
 781                         "saa7134:  subsystem ID and I can't identify it automatically\n"
 782                         "saa7134: </rant>\n"
 783                         "saa7134: I feel better now.  Ok, here are the good news:\n"
 784                         "saa7134: You can use the card=<nr> insmod option to specify\n"
 785                         "saa7134: which board do you have.  The list:\n");
 786         else
 787                 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 788                         "saa7134: insmod option to specify which board do you have, but this is\n"
 789                         "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 790                         "saa7134: for support at linux-media@vger.kernel.org.\n"
 791                         "saa7134: The supported cards are:\n");
 792
 793         for (i = 0; i < saa7134_bcount; i++) {
 794                 pr_warn("saa7134:   card=%d -> %-40.40s",
 795                        i,saa7134_boards[i].name);
 796                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 797                         if (saa7134_pci_tbl[p].driver_data != i)
 798                                 continue;
 799                         pr_cont(" %04x:%04x",
 800                                saa7134_pci_tbl[p].subvendor,
 801                                saa7134_pci_tbl[p].subdevice);
 802                 }
 803                 pr_cont("\n");
 804         }
 805 }
 806
 807 static struct video_device *vdev_init(struct saa7134_dev *dev,
 808                                       struct video_device *template,
 809                                       char *type)
 810 {
 811         struct video_device *vfd;
 812
 813         vfd = video_device_alloc();
 814         if (NULL == vfd)
 815                 return NULL;
 816         *vfd = *template;
 817         vfd->v4l2_dev  = &dev->v4l2_dev;
 818         vfd->release = video_device_release;
 819         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 820                  dev->name, type, saa7134_boards[dev->board].name);
 821         video_set_drvdata(vfd, dev);
 822         return vfd;
 823 }
 824
 825 static void saa7134_unregister_video(struct saa7134_dev *dev)
 826 {
 827         if (dev->video_dev) {
 828                 if (video_is_registered(dev->video_dev))
 829                         video_unregister_device(dev->video_dev);
 830                 else
 831                         video_device_release(dev->video_dev);
 832                 dev->video_dev = NULL;
 833         }
 834         if (dev->vbi_dev) {
 835                 if (video_is_registered(dev->vbi_dev))
 836                         video_unregister_device(dev->vbi_dev);
 837                 else
 838                         video_device_release(dev->vbi_dev);
 839                 dev->vbi_dev = NULL;
 840         }
 841         if (dev->radio_dev) {
 842                 if (video_is_registered(dev->radio_dev))
 843                         video_unregister_device(dev->radio_dev);
 844                 else
 845                         video_device_release(dev->radio_dev);
 846                 dev->radio_dev = NULL;
 847         }
 848 }
 849
 850 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 851                             struct saa7134_dev *dev)
 852 {
 853         int err;
 854
 855         if (NULL != dev->mops)
 856                 return;
 857         if (saa7134_boards[dev->board].mpeg != ops->type)
 858                 return;
 859         err = ops->init(dev);
 860         if (0 != err)
 861                 return;
 862         dev->mops = ops;
 863 }
 864
 865 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 866                             struct saa7134_dev *dev)
 867 {
 868         if (NULL == dev->mops)
 869                 return;
 870         if (dev->mops != ops)
 871                 return;
 872         dev->mops->fini(dev);
 873         dev->mops = NULL;
 874 }
 875
 876 static int saa7134_initdev(struct pci_dev *pci_dev,
 877                            const struct pci_device_id *pci_id)
 878 {
 879         struct saa7134_dev *dev;
 880         struct saa7134_mpeg_ops *mops;
 881         int err;
 882
 883         if (saa7134_devcount == SAA7134_MAXBOARDS)
 884                 return -ENOMEM;
 885
 886         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
 887         if (NULL == dev)
 888                 return -ENOMEM;
 889
 890         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
 891         if (err)
 892                 goto fail0;
 893
 894         /* pci init */
 895         dev->pci = pci_dev;
 896         if (pci_enable_device(pci_dev)) {
 897                 err = -EIO;
 898                 goto fail1;
 899         }
 900
 901         dev->nr = saa7134_devcount;
 902         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
 903
 904         /* pci quirks */
 905         if (pci_pci_problems) {
 906                 if (pci_pci_problems & PCIPCI_TRITON)
 907                         pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
 908                 if (pci_pci_problems & PCIPCI_NATOMA)
 909                         pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
 910                 if (pci_pci_problems & PCIPCI_VIAETBF)
 911                         pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
 912                 if (pci_pci_problems & PCIPCI_VSFX)
 913                         pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
 914 #ifdef PCIPCI_ALIMAGIK
 915                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
 916                         pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
 917                                dev->name);
 918                         latency = 0x0A;
 919                 }
 920 #endif
 921                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
 922                         pr_info("%s: quirk: this driver and your "
 923                                         "chipset may not work together"
 924                                         " in overlay mode.\n",dev->name);
 925                         if (!saa7134_no_overlay) {
 926                                 pr_info("%s: quirk: overlay "
 927                                                 "mode will be disabled.\n",
 928                                                 dev->name);
 929                                 saa7134_no_overlay = 1;
 930                         } else {
 931                                 pr_info("%s: quirk: overlay "
 932                                                 "mode will be forced. Use this"
 933                                                 " option at your own risk.\n",
 934                                                 dev->name);
 935                         }
 936                 }
 937         }
 938         if (UNSET != latency) {
 939                 pr_info("%s: setting pci latency timer to %d\n",
 940                        dev->name,latency);
 941                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
 942         }
 943
 944         /* print pci info */
 945         dev->pci_rev = pci_dev->revision;
 946         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
 947         pr_info("%s: found at %s, rev: %d, irq: %d, "
 948                "latency: %d, mmio: 0x%llx\n", dev->name,
 949                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
 950                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
 951         pci_set_master(pci_dev);
 952         if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
 953                 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
 954                 err = -EIO;
 955                 goto fail1;
 956         }
 957
 958         /* board config */
 959         dev->board = pci_id->driver_data;
 960         if ((unsigned)card[dev->nr] < saa7134_bcount)
 961                 dev->board = card[dev->nr];
 962         if (SAA7134_BOARD_UNKNOWN == dev->board)
 963                 must_configure_manually(0);
 964         else if (SAA7134_BOARD_NOAUTO == dev->board) {
 965                 must_configure_manually(1);
 966                 dev->board = SAA7134_BOARD_UNKNOWN;
 967         }
 968         dev->autodetected = card[dev->nr] != dev->board;
 969         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
 970         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
 971         dev->radio_type = saa7134_boards[dev->board].radio_type;
 972         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
 973         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
 974         if (UNSET != tuner[dev->nr])
 975                 dev->tuner_type = tuner[dev->nr];
 976         pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
 977                 dev->name,pci_dev->subsystem_vendor,
 978                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
 979                 dev->board, dev->autodetected ?
 980                 "autodetected" : "insmod option");
 981
 982         /* get mmio */
 983         if (!request_mem_region(pci_resource_start(pci_dev,0),
 984                                 pci_resource_len(pci_dev,0),
 985                                 dev->name)) {
 986                 err = -EBUSY;
 987                 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
 988                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 989                 goto fail1;
 990         }
 991         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
 992                              pci_resource_len(pci_dev, 0));
 993         dev->bmmio = (__u8 __iomem *)dev->lmmio;
 994         if (NULL == dev->lmmio) {
 995                 err = -EIO;
 996                 pr_err("%s: can't ioremap() MMIO memory\n",
 997                        dev->name);
 998                 goto fail2;
 999         }
1000
1001         /* initialize hardware #1 */
1002         saa7134_board_init1(dev);
1003         saa7134_hwinit1(dev);
1004
1005         dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
1006         if (IS_ERR(dev->alloc_ctx)) {
1007                 err = PTR_ERR(dev->alloc_ctx);
1008                 goto fail3;
1009         }
1010         /* get irq */
1011         err = request_irq(pci_dev->irq, saa7134_irq,
1012                           IRQF_SHARED, dev->name, dev);
1013         if (err < 0) {
1014                 pr_err("%s: can't get IRQ %d\n",
1015                        dev->name,pci_dev->irq);
1016                 goto fail4;
1017         }
1018
1019         /* wait a bit, register i2c bus */
1020         msleep(100);
1021         saa7134_i2c_register(dev);
1022         saa7134_board_init2(dev);
1023
1024         saa7134_hwinit2(dev);
1025
1026         /* load i2c helpers */
1027         if (card_is_empress(dev)) {
1028                 dev->empress_sd =
1029                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1030                                 "saa6752hs",
1031                                 saa7134_boards[dev->board].empress_addr, NULL);
1032
1033                 if (dev->empress_sd)
1034                         dev->empress_sd->grp_id = GRP_EMPRESS;
1035         }
1036
1037         if (saa7134_boards[dev->board].rds_addr) {
1038                 struct v4l2_subdev *sd;
1039
1040                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1041                                 &dev->i2c_adap, "saa6588",
1042                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1043                 if (sd) {
1044                         pr_info("%s: found RDS decoder\n", dev->name);
1045                         dev->has_rds = 1;
1046                 }
1047         }
1048
1049         mutex_lock(&saa7134_devlist_lock);
1050         list_for_each_entry(mops, &mops_list, next)
1051                 mpeg_ops_attach(mops, dev);
1052         list_add_tail(&dev->devlist, &saa7134_devlist);
1053         mutex_unlock(&saa7134_devlist_lock);
1054
1055         /* check for signal */
1056         saa7134_irq_video_signalchange(dev);
1057
1058         if (TUNER_ABSENT != dev->tuner_type)
1059                 saa_call_all(dev, core, s_power, 0);
1060
1061         /* register v4l devices */
1062         if (saa7134_no_overlay > 0)
1063                 pr_info("%s: Overlay support disabled.\n", dev->name);
1064
1065         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1066         dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1067         dev->video_dev->lock = &dev->lock;
1068         dev->video_dev->queue = &dev->video_vbq;
1069         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1070                                     video_nr[dev->nr]);
1071         if (err < 0) {
1072                 pr_info("%s: can't register video device\n",
1073                        dev->name);
1074                 goto fail5;
1075         }
1076         pr_info("%s: registered device %s [v4l2]\n",
1077                dev->name, video_device_node_name(dev->video_dev));
1078
1079         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1080         dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1081         dev->vbi_dev->lock = &dev->lock;
1082         dev->vbi_dev->queue = &dev->vbi_vbq;
1083
1084         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1085                                     vbi_nr[dev->nr]);
1086         if (err < 0)
1087                 goto fail5;
1088         pr_info("%s: registered device %s\n",
1089                dev->name, video_device_node_name(dev->vbi_dev));
1090
1091         if (card_has_radio(dev)) {
1092                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1093                 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1094                 dev->radio_dev->lock = &dev->lock;
1095                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1096                                             radio_nr[dev->nr]);
1097                 if (err < 0)
1098                         goto fail5;
1099                 pr_info("%s: registered device %s\n",
1100                        dev->name, video_device_node_name(dev->radio_dev));
1101         }
1102
1103         /* everything worked */
1104         saa7134_devcount++;
1105
1106         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1107                 saa7134_dmasound_init(dev);
1108
1109         request_submodules(dev);
1110         return 0;
1111
1112  fail5:
1113         saa7134_unregister_video(dev);
1114         saa7134_i2c_unregister(dev);
1115         free_irq(pci_dev->irq, dev);
1116  fail4:
1117         vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
1118  fail3:
1119         saa7134_hwfini(dev);
1120         iounmap(dev->lmmio);
1121  fail2:
1122         release_mem_region(pci_resource_start(pci_dev,0),
1123                            pci_resource_len(pci_dev,0));
1124  fail1:
1125         v4l2_device_unregister(&dev->v4l2_dev);
1126  fail0:
1127         kfree(dev);
1128         return err;
1129 }
1130
1131 static void saa7134_finidev(struct pci_dev *pci_dev)
1132 {
1133         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1134         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1135         struct saa7134_mpeg_ops *mops;
1136
1137         flush_request_submodules(dev);
1138
1139         /* Release DMA sound modules if present */
1140         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1141                 saa7134_dmasound_exit(dev);
1142         }
1143
1144         /* debugging ... */
1145         if (irq_debug) {
1146                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1147                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1148                 print_irqstatus(dev,42,report,status);
1149         }
1150
1151         /* disable peripheral devices */
1152         saa_writeb(SAA7134_SPECIAL_MODE,0);
1153
1154         /* shutdown hardware */
1155         saa_writel(SAA7134_IRQ1,0);
1156         saa_writel(SAA7134_IRQ2,0);
1157         saa_writel(SAA7134_MAIN_CTRL,0);
1158
1159         /* shutdown subsystems */
1160         saa7134_hwfini(dev);
1161
1162         /* unregister */
1163         mutex_lock(&saa7134_devlist_lock);
1164         list_del(&dev->devlist);
1165         list_for_each_entry(mops, &mops_list, next)
1166                 mpeg_ops_detach(mops, dev);
1167         mutex_unlock(&saa7134_devlist_lock);
1168         saa7134_devcount--;
1169
1170         saa7134_i2c_unregister(dev);
1171         saa7134_unregister_video(dev);
1172
1173
1174         /* the DMA sound modules should be unloaded before reaching
1175            this, but just in case they are still present... */
1176         if (dev->dmasound.priv_data != NULL) {
1177                 free_irq(pci_dev->irq, &dev->dmasound);
1178                 dev->dmasound.priv_data = NULL;
1179         }
1180
1181
1182         /* release resources */
1183         free_irq(pci_dev->irq, dev);
1184         vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
1185         iounmap(dev->lmmio);
1186         release_mem_region(pci_resource_start(pci_dev,0),
1187                            pci_resource_len(pci_dev,0));
1188
1189
1190         v4l2_device_unregister(&dev->v4l2_dev);
1191
1192         /* free memory */
1193         kfree(dev);
1194 }
1195
1196 #ifdef CONFIG_PM
1197
1198 /* resends a current buffer in queue after resume */
1199 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1200                                   struct saa7134_dmaqueue *q)
1201 {
1202         struct saa7134_buf *buf, *next;
1203
1204         assert_spin_locked(&dev->slock);
1205
1206         buf  = q->curr;
1207         next = buf;
1208         core_dbg("buffer_requeue\n");
1209
1210         if (!buf)
1211                 return 0;
1212
1213         core_dbg("buffer_requeue : resending active buffer\n");
1214
1215         if (!list_empty(&q->queue))
1216                 next = list_entry(q->queue.next, struct saa7134_buf,
1217                                           entry);
1218         buf->activate(dev, buf, next);
1219
1220         return 0;
1221 }
1222
1223 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1224 {
1225         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1226         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1227
1228         /* disable overlay - apps should enable it explicitly on resume*/
1229         dev->ovenable = 0;
1230
1231         /* Disable interrupts, DMA, and rest of the chip*/
1232         saa_writel(SAA7134_IRQ1, 0);
1233         saa_writel(SAA7134_IRQ2, 0);
1234         saa_writel(SAA7134_MAIN_CTRL, 0);
1235
1236         dev->insuspend = 1;
1237         synchronize_irq(pci_dev->irq);
1238
1239         /* ACK interrupts once more, just in case,
1240                 since the IRQ handler won't ack them anymore*/
1241
1242         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1243
1244         /* Disable timeout timers - if we have active buffers, we will
1245            fill them on resume*/
1246
1247         del_timer(&dev->video_q.timeout);
1248         del_timer(&dev->vbi_q.timeout);
1249         del_timer(&dev->ts_q.timeout);
1250
1251         if (dev->remote)
1252                 saa7134_ir_stop(dev);
1253
1254         pci_save_state(pci_dev);
1255         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1256
1257         return 0;
1258 }
1259
1260 static int saa7134_resume(struct pci_dev *pci_dev)
1261 {
1262         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1263         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1264         unsigned long flags;
1265
1266         pci_set_power_state(pci_dev, PCI_D0);
1267         pci_restore_state(pci_dev);
1268
1269         /* Do things that are done in saa7134_initdev ,
1270                 except of initializing memory structures.*/
1271
1272         saa7134_board_init1(dev);
1273
1274         /* saa7134_hwinit1 */
1275         if (saa7134_boards[dev->board].video_out)
1276                 saa7134_videoport_init(dev);
1277         if (card_has_mpeg(dev))
1278                 saa7134_ts_init_hw(dev);
1279         if (dev->remote)
1280                 saa7134_ir_start(dev);
1281         saa7134_hw_enable1(dev);
1282
1283         msleep(100);
1284
1285         saa7134_board_init2(dev);
1286
1287         /*saa7134_hwinit2*/
1288         saa7134_set_tvnorm_hw(dev);
1289         saa7134_tvaudio_setmute(dev);
1290         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1291         saa7134_tvaudio_init(dev);
1292         saa7134_enable_i2s(dev);
1293         saa7134_hw_enable2(dev);
1294
1295         saa7134_irq_video_signalchange(dev);
1296
1297         /*resume unfinished buffer(s)*/
1298         spin_lock_irqsave(&dev->slock, flags);
1299         saa7134_buffer_requeue(dev, &dev->video_q);
1300         saa7134_buffer_requeue(dev, &dev->vbi_q);
1301         saa7134_buffer_requeue(dev, &dev->ts_q);
1302
1303         /* FIXME: Disable DMA audio sound - temporary till proper support
1304                   is implemented*/
1305
1306         dev->dmasound.dma_running = 0;
1307
1308         /* start DMA now*/
1309         dev->insuspend = 0;
1310         smp_wmb();
1311         saa7134_set_dmabits(dev);
1312         spin_unlock_irqrestore(&dev->slock, flags);
1313
1314         return 0;
1315 }
1316 #endif
1317
1318 /* ----------------------------------------------------------- */
1319
1320 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1321 {
1322         struct saa7134_dev *dev;
1323
1324         mutex_lock(&saa7134_devlist_lock);
1325         list_for_each_entry(dev, &saa7134_devlist, devlist)
1326                 mpeg_ops_attach(ops, dev);
1327         list_add_tail(&ops->next,&mops_list);
1328         mutex_unlock(&saa7134_devlist_lock);
1329         return 0;
1330 }
1331
1332 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1333 {
1334         struct saa7134_dev *dev;
1335
1336         mutex_lock(&saa7134_devlist_lock);
1337         list_del(&ops->next);
1338         list_for_each_entry(dev, &saa7134_devlist, devlist)
1339                 mpeg_ops_detach(ops, dev);
1340         mutex_unlock(&saa7134_devlist_lock);
1341 }
1342
1343 EXPORT_SYMBOL(saa7134_ts_register);
1344 EXPORT_SYMBOL(saa7134_ts_unregister);
1345
1346 /* ----------------------------------------------------------- */
1347
1348 static struct pci_driver saa7134_pci_driver = {
1349         .name     = "saa7134",
1350         .id_table = saa7134_pci_tbl,
1351         .probe    = saa7134_initdev,
1352         .remove   = saa7134_finidev,
1353 #ifdef CONFIG_PM
1354         .suspend  = saa7134_suspend,
1355         .resume   = saa7134_resume
1356 #endif
1357 };
1358
1359 static int __init saa7134_init(void)
1360 {
1361         INIT_LIST_HEAD(&saa7134_devlist);
1362         pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1363                SAA7134_VERSION);
1364         return pci_register_driver(&saa7134_pci_driver);
1365 }
1366
1367 static void __exit saa7134_fini(void)
1368 {
1369         pci_unregister_driver(&saa7134_pci_driver);
1370 }
1371
1372 module_init(saa7134_init);
1373 module_exit(saa7134_fini);
1374
1375 /* ----------------------------------------------------------- */
1376
1377 EXPORT_SYMBOL(saa7134_set_gpio);
1378 EXPORT_SYMBOL(saa7134_boards);
1379
1380 /* ----------------- for the DMA sound modules --------------- */
1381
1382 EXPORT_SYMBOL(saa7134_dmasound_init);
1383 EXPORT_SYMBOL(saa7134_dmasound_exit);
1384 EXPORT_SYMBOL(saa7134_pgtable_free);
1385 EXPORT_SYMBOL(saa7134_pgtable_build);
1386 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1387 EXPORT_SYMBOL(saa7134_set_dmabits);