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