linux/drivers/media/pci/saa7134/saa7134-core.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *
   4 * device driver for philips saa7134 based TV cards
   5 * driver core
   6 *
   7 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8 */
   9
  10#include "saa7134.h"
  11#include "saa7134-reg.h"
  12
  13#include <linux/init.h>
  14#include <linux/list.h>
  15#include <linux/module.h>
  16#include <linux/kernel.h>
  17#include <linux/slab.h>
  18#include <linux/kmod.h>
  19#include <linux/sound.h>
  20#include <linux/interrupt.h>
  21#include <linux/delay.h>
  22#include <linux/mutex.h>
  23#include <linux/dma-mapping.h>
  24#include <linux/pm.h>
  25
  26MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
  27MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
  28MODULE_LICENSE("GPL");
  29MODULE_VERSION(SAA7134_VERSION);
  30
  31
  32/* ------------------------------------------------------------------ */
  33
  34static unsigned int irq_debug;
  35module_param(irq_debug, int, 0644);
  36MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
  37
  38static unsigned int core_debug;
  39module_param(core_debug, int, 0644);
  40MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
  41
  42static unsigned int gpio_tracking;
  43module_param(gpio_tracking, int, 0644);
  44MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
  45
  46static unsigned int alsa = 1;
  47module_param(alsa, int, 0644);
  48MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
  49
  50static unsigned int latency = UNSET;
  51module_param(latency, int, 0444);
  52MODULE_PARM_DESC(latency,"pci latency timer");
  53
  54int saa7134_no_overlay=-1;
  55module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
  56MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
  57
  58bool saa7134_userptr;
  59module_param(saa7134_userptr, bool, 0644);
  60MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
  61
  62static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  63static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  64static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  65static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  66static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  67
  68
  69module_param_array(video_nr, int, NULL, 0444);
  70module_param_array(vbi_nr,   int, NULL, 0444);
  71module_param_array(radio_nr, int, NULL, 0444);
  72module_param_array(tuner,    int, NULL, 0444);
  73module_param_array(card,     int, NULL, 0444);
  74
  75MODULE_PARM_DESC(video_nr, "video device number");
  76MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  77MODULE_PARM_DESC(radio_nr, "radio device number");
  78MODULE_PARM_DESC(tuner,    "tuner type");
  79MODULE_PARM_DESC(card,     "card type");
  80
  81DEFINE_MUTEX(saa7134_devlist_lock);
  82EXPORT_SYMBOL(saa7134_devlist_lock);
  83LIST_HEAD(saa7134_devlist);
  84EXPORT_SYMBOL(saa7134_devlist);
  85static LIST_HEAD(mops_list);
  86static unsigned int saa7134_devcount;
  87
  88int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  89int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  90
  91#define core_dbg(fmt, arg...) do { \
  92        if (core_debug) \
  93                printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
  94        } while (0)
  95
  96#define irq_dbg(level, fmt, arg...)  do {\
  97        if (irq_debug > level) \
  98                printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
  99        } while (0)
 100
 101void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
 102{
 103        unsigned long mode,status;
 104
 105        if (!gpio_tracking)
 106                return;
 107        /* rising SAA7134_GPIO_GPRESCAN reads the status */
 108        saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 109        saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 110        mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 111        status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 112        core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 113               dev->name, mode, (~mode) & status, mode & status, msg);
 114}
 115
 116void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 117{
 118        u32 index, bitval;
 119
 120        index = 1 << bit_no;
 121        switch (value) {
 122        case 0: /* static value */
 123        case 1:
 124                core_dbg("setting GPIO%d to static %d\n", bit_no, value);
 125                /* turn sync mode off if necessary */
 126                if (index & 0x00c00000)
 127                        saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 128                if (value)
 129                        bitval = index;
 130                else
 131                        bitval = 0;
 132                saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 133                saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 134                break;
 135        case 3: /* tristate */
 136                core_dbg("setting GPIO%d to tristate\n", bit_no);
 137                saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 138                break;
 139        }
 140}
 141
 142/* ------------------------------------------------------------------ */
 143
 144
 145/* ----------------------------------------------------------- */
 146/* delayed request_module                                      */
 147
 148#if defined(CONFIG_MODULES) && defined(MODULE)
 149
 150static void request_module_async(struct work_struct *work){
 151        struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 152        if (card_is_empress(dev))
 153                request_module("saa7134-empress");
 154        if (card_is_dvb(dev))
 155                request_module("saa7134-dvb");
 156        if (card_is_go7007(dev))
 157                request_module("saa7134-go7007");
 158        if (alsa) {
 159                if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 160                        request_module("saa7134-alsa");
 161        }
 162}
 163
 164static void request_submodules(struct saa7134_dev *dev)
 165{
 166        INIT_WORK(&dev->request_module_wk, request_module_async);
 167        schedule_work(&dev->request_module_wk);
 168}
 169
 170static void flush_request_submodules(struct saa7134_dev *dev)
 171{
 172        flush_work(&dev->request_module_wk);
 173}
 174
 175#else
 176#define request_submodules(dev)
 177#define flush_request_submodules(dev)
 178#endif /* CONFIG_MODULES */
 179
 180/* ------------------------------------------------------------------ */
 181
 182/* nr of (saa7134-)pages for the given buffer size */
 183static int saa7134_buffer_pages(int size)
 184{
 185        size  = PAGE_ALIGN(size);
 186        size += PAGE_SIZE; /* for non-page-aligned buffers */
 187        size /= 4096;
 188        return size;
 189}
 190
 191/* calc max # of buffers from size (must not exceed the 4MB virtual
 192 * address space per DMA channel) */
 193int saa7134_buffer_count(unsigned int size, unsigned int count)
 194{
 195        unsigned int maxcount;
 196
 197        maxcount = 1024 / saa7134_buffer_pages(size);
 198        if (count > maxcount)
 199                count = maxcount;
 200        return count;
 201}
 202
 203int saa7134_buffer_startpage(struct saa7134_buf *buf)
 204{
 205        return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
 206                        * buf->vb2.vb2_buf.index;
 207}
 208
 209unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 210{
 211        unsigned long base;
 212        struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
 213
 214        base  = saa7134_buffer_startpage(buf) * 4096;
 215        base += dma->sgl[0].offset;
 216        return base;
 217}
 218
 219/* ------------------------------------------------------------------ */
 220
 221int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 222{
 223        __le32       *cpu;
 224        dma_addr_t   dma_addr = 0;
 225
 226        cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
 227        if (NULL == cpu)
 228                return -ENOMEM;
 229        pt->size = SAA7134_PGTABLE_SIZE;
 230        pt->cpu  = cpu;
 231        pt->dma  = dma_addr;
 232        return 0;
 233}
 234
 235int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 236                          struct scatterlist *list, unsigned int length,
 237                          unsigned int startpage)
 238{
 239        __le32        *ptr;
 240        unsigned int  i, p;
 241
 242        BUG_ON(NULL == pt || NULL == pt->cpu);
 243
 244        ptr = pt->cpu + startpage;
 245        for (i = 0; i < length; i++, list = sg_next(list)) {
 246                for (p = 0; p * 4096 < list->length; p++, ptr++)
 247                        *ptr = cpu_to_le32(sg_dma_address(list) +
 248                                                list->offset + p * 4096);
 249        }
 250        return 0;
 251}
 252
 253void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 254{
 255        if (NULL == pt->cpu)
 256                return;
 257        pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
 258        pt->cpu = NULL;
 259}
 260
 261/* ------------------------------------------------------------------ */
 262
 263int saa7134_buffer_queue(struct saa7134_dev *dev,
 264                         struct saa7134_dmaqueue *q,
 265                         struct saa7134_buf *buf)
 266{
 267        struct saa7134_buf *next = NULL;
 268        unsigned long flags;
 269
 270        spin_lock_irqsave(&dev->slock, flags);
 271        core_dbg("buffer_queue %p\n", buf);
 272        if (NULL == q->curr) {
 273                if (!q->need_two) {
 274                        q->curr = buf;
 275                        buf->activate(dev, buf, NULL);
 276                } else if (list_empty(&q->queue)) {
 277                        list_add_tail(&buf->entry, &q->queue);
 278                } else {
 279                        next = list_entry(q->queue.next, struct saa7134_buf,
 280                                          entry);
 281                        q->curr = buf;
 282                        buf->activate(dev, buf, next);
 283                }
 284        } else {
 285                list_add_tail(&buf->entry, &q->queue);
 286        }
 287        spin_unlock_irqrestore(&dev->slock, flags);
 288        return 0;
 289}
 290
 291void saa7134_buffer_finish(struct saa7134_dev *dev,
 292                           struct saa7134_dmaqueue *q,
 293                           unsigned int state)
 294{
 295        core_dbg("buffer_finish %p\n", q->curr);
 296
 297        /* finish current buffer */
 298        q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
 299        q->curr->vb2.sequence = q->seq_nr++;
 300        vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
 301        q->curr = NULL;
 302}
 303
 304void saa7134_buffer_next(struct saa7134_dev *dev,
 305                         struct saa7134_dmaqueue *q)
 306{
 307        struct saa7134_buf *buf,*next = NULL;
 308
 309        assert_spin_locked(&dev->slock);
 310        BUG_ON(NULL != q->curr);
 311
 312        if (!list_empty(&q->queue)) {
 313                /* activate next one from queue */
 314                buf = list_entry(q->queue.next, struct saa7134_buf, entry);
 315                core_dbg("buffer_next %p [prev=%p/next=%p]\n",
 316                        buf, q->queue.prev, q->queue.next);
 317                list_del(&buf->entry);
 318                if (!list_empty(&q->queue))
 319                        next = list_entry(q->queue.next, struct saa7134_buf, entry);
 320                q->curr = buf;
 321                buf->activate(dev, buf, next);
 322                core_dbg("buffer_next #2 prev=%p/next=%p\n",
 323                        q->queue.prev, q->queue.next);
 324        } else {
 325                /* nothing to do -- just stop DMA */
 326                core_dbg("buffer_next %p\n", NULL);
 327                saa7134_set_dmabits(dev);
 328                del_timer(&q->timeout);
 329        }
 330}
 331
 332void saa7134_buffer_timeout(struct timer_list *t)
 333{
 334        struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
 335        struct saa7134_dev *dev = q->dev;
 336        unsigned long flags;
 337
 338        spin_lock_irqsave(&dev->slock, flags);
 339
 340        /* try to reset the hardware (SWRST) */
 341        saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 342        saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 343        saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 344
 345        /* flag current buffer as failed,
 346           try to start over with the next one. */
 347        if (q->curr) {
 348                core_dbg("timeout on %p\n", q->curr);
 349                saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
 350        }
 351        saa7134_buffer_next(dev, q);
 352        spin_unlock_irqrestore(&dev->slock, flags);
 353}
 354
 355void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
 356{
 357        unsigned long flags;
 358        struct list_head *pos, *n;
 359        struct saa7134_buf *tmp;
 360
 361        spin_lock_irqsave(&dev->slock, flags);
 362        if (!list_empty(&q->queue)) {
 363                list_for_each_safe(pos, n, &q->queue) {
 364                         tmp = list_entry(pos, struct saa7134_buf, entry);
 365                         vb2_buffer_done(&tmp->vb2.vb2_buf,
 366                                         VB2_BUF_STATE_ERROR);
 367                         list_del(pos);
 368                         tmp = NULL;
 369                }
 370        }
 371        spin_unlock_irqrestore(&dev->slock, flags);
 372        saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
 373}
 374EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 375
 376/* ------------------------------------------------------------------ */
 377
 378int saa7134_set_dmabits(struct saa7134_dev *dev)
 379{
 380        u32 split, task=0, ctrl=0, irq=0;
 381        enum v4l2_field cap = V4L2_FIELD_ANY;
 382        enum v4l2_field ov  = V4L2_FIELD_ANY;
 383
 384        assert_spin_locked(&dev->slock);
 385
 386        if (dev->insuspend)
 387                return 0;
 388
 389        /* video capture -- dma 0 + video task A */
 390        if (dev->video_q.curr) {
 391                task |= 0x01;
 392                ctrl |= SAA7134_MAIN_CTRL_TE0;
 393                irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 394                        SAA7134_IRQ1_INTE_RA0_0;
 395                cap = dev->field;
 396        }
 397
 398        /* video capture -- dma 1+2 (planar modes) */
 399        if (dev->video_q.curr && dev->fmt->planar) {
 400                ctrl |= SAA7134_MAIN_CTRL_TE4 |
 401                        SAA7134_MAIN_CTRL_TE5;
 402        }
 403
 404        /* screen overlay -- dma 0 + video task B */
 405        if (dev->ovenable) {
 406                task |= 0x10;
 407                ctrl |= SAA7134_MAIN_CTRL_TE1;
 408                ov = dev->ovfield;
 409        }
 410
 411        /* vbi capture -- dma 0 + vbi task A+B */
 412        if (dev->vbi_q.curr) {
 413                task |= 0x22;
 414                ctrl |= SAA7134_MAIN_CTRL_TE2 |
 415                        SAA7134_MAIN_CTRL_TE3;
 416                irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 417                        SAA7134_IRQ1_INTE_RA0_6 |
 418                        SAA7134_IRQ1_INTE_RA0_5 |
 419                        SAA7134_IRQ1_INTE_RA0_4;
 420        }
 421
 422        /* audio capture -- dma 3 */
 423        if (dev->dmasound.dma_running) {
 424                ctrl |= SAA7134_MAIN_CTRL_TE6;
 425                irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 426                        SAA7134_IRQ1_INTE_RA3_0;
 427        }
 428
 429        /* TS capture -- dma 5 */
 430        if (dev->ts_q.curr) {
 431                ctrl |= SAA7134_MAIN_CTRL_TE5;
 432                irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 433                        SAA7134_IRQ1_INTE_RA2_0;
 434        }
 435
 436        /* set task conditions + field handling */
 437        if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 438                /* default config -- use full frames */
 439                saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 440                saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 441                saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 442                saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 443                split = 0;
 444        } else {
 445                /* split fields between tasks */
 446                if (V4L2_FIELD_TOP == cap) {
 447                        /* odd A, even B, repeat */
 448                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 449                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 450                } else {
 451                        /* odd B, even A, repeat */
 452                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 453                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 454                }
 455                saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 456                saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 457                split = 1;
 458        }
 459
 460        /* irqs */
 461        saa_writeb(SAA7134_REGION_ENABLE, task);
 462        saa_writel(SAA7134_IRQ1,          irq);
 463        saa_andorl(SAA7134_MAIN_CTRL,
 464                   SAA7134_MAIN_CTRL_TE0 |
 465                   SAA7134_MAIN_CTRL_TE1 |
 466                   SAA7134_MAIN_CTRL_TE2 |
 467                   SAA7134_MAIN_CTRL_TE3 |
 468                   SAA7134_MAIN_CTRL_TE4 |
 469                   SAA7134_MAIN_CTRL_TE5 |
 470                   SAA7134_MAIN_CTRL_TE6,
 471                   ctrl);
 472        core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 473                task, ctrl, irq, split ? "no" : "yes");
 474
 475        return 0;
 476}
 477
 478/* ------------------------------------------------------------------ */
 479/* IRQ handler + helpers                                              */
 480
 481static char *irqbits[] = {
 482        "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 483        "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 484        "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 485        "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 486};
 487#define IRQBITS ARRAY_SIZE(irqbits)
 488
 489static void print_irqstatus(struct saa7134_dev *dev, int loop,
 490                            unsigned long report, unsigned long status)
 491{
 492        unsigned int i;
 493
 494        irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 495                loop, jiffies, report, status);
 496        for (i = 0; i < IRQBITS; i++) {
 497                if (!(report & (1 << i)))
 498                        continue;
 499                pr_cont(" %s", irqbits[i]);
 500        }
 501        if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 502                pr_cont(" | RA0=%s,%s,%s,%ld",
 503                        (status & 0x40) ? "vbi"  : "video",
 504                        (status & 0x20) ? "b"    : "a",
 505                        (status & 0x10) ? "odd"  : "even",
 506                        (status & 0x0f));
 507        }
 508        pr_cont("\n");
 509}
 510
 511static irqreturn_t saa7134_irq(int irq, void *dev_id)
 512{
 513        struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 514        unsigned long report,status;
 515        int loop, handled = 0;
 516
 517        if (dev->insuspend)
 518                goto out;
 519
 520        for (loop = 0; loop < 10; loop++) {
 521                report = saa_readl(SAA7134_IRQ_REPORT);
 522                status = saa_readl(SAA7134_IRQ_STATUS);
 523
 524                /* If dmasound support is active and we get a sound report,
 525                 * mask out the report and let the saa7134-alsa module deal
 526                 * with it */
 527                if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 528                        (dev->dmasound.priv_data != NULL) )
 529                {
 530                        irq_dbg(2, "preserving DMA sound interrupt\n");
 531                        report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 532                }
 533
 534                if (0 == report) {
 535                        irq_dbg(2, "no (more) work\n");
 536                        goto out;
 537                }
 538
 539                handled = 1;
 540                saa_writel(SAA7134_IRQ_REPORT,report);
 541                if (irq_debug)
 542                        print_irqstatus(dev,loop,report,status);
 543
 544
 545                if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 546                        (report & SAA7134_IRQ_REPORT_INTL))
 547                                saa7134_irq_video_signalchange(dev);
 548
 549
 550                if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 551                    (status & 0x60) == 0)
 552                        saa7134_irq_video_done(dev,status);
 553
 554                if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 555                    (status & 0x40) == 0x40)
 556                        saa7134_irq_vbi_done(dev,status);
 557
 558                if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 559                    card_has_mpeg(dev)) {
 560                        if (dev->mops->irq_ts_done != NULL)
 561                                dev->mops->irq_ts_done(dev, status);
 562                        else
 563                                saa7134_irq_ts_done(dev, status);
 564                }
 565
 566                if (report & SAA7134_IRQ_REPORT_GPIO16) {
 567                        switch (dev->has_remote) {
 568                                case SAA7134_REMOTE_GPIO:
 569                                        if (!dev->remote)
 570                                                break;
 571                                        if  (dev->remote->mask_keydown & 0x10000) {
 572                                                saa7134_input_irq(dev);
 573                                        }
 574                                        break;
 575
 576                                case SAA7134_REMOTE_I2C:
 577                                        break;                  /* FIXME: invoke I2C get_key() */
 578
 579                                default:                        /* GPIO16 not used by IR remote */
 580                                        break;
 581                        }
 582                }
 583
 584                if (report & SAA7134_IRQ_REPORT_GPIO18) {
 585                        switch (dev->has_remote) {
 586                                case SAA7134_REMOTE_GPIO:
 587                                        if (!dev->remote)
 588                                                break;
 589                                        if ((dev->remote->mask_keydown & 0x40000) ||
 590                                            (dev->remote->mask_keyup & 0x40000)) {
 591                                                saa7134_input_irq(dev);
 592                                        }
 593                                        break;
 594
 595                                case SAA7134_REMOTE_I2C:
 596                                        break;                  /* FIXME: invoke I2C get_key() */
 597
 598                                default:                        /* GPIO18 not used by IR remote */
 599                                        break;
 600                        }
 601                }
 602        }
 603
 604        if (10 == loop) {
 605                print_irqstatus(dev,loop,report,status);
 606                if (report & SAA7134_IRQ_REPORT_PE) {
 607                        /* disable all parity error */
 608                        pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
 609                                dev->name);
 610                        saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 611                } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 612                        /* disable gpio16 IRQ */
 613                        pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
 614                                dev->name);
 615                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 616                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 617                } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 618                        /* disable gpio18 IRQs */
 619                        pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
 620                                dev->name);
 621                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 622                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 623                } else {
 624                        /* disable all irqs */
 625                        pr_warn("%s/irq: looping -- clearing all enable bits\n",
 626                                dev->name);
 627                        saa_writel(SAA7134_IRQ1,0);
 628                        saa_writel(SAA7134_IRQ2,0);
 629                }
 630        }
 631
 632 out:
 633        return IRQ_RETVAL(handled);
 634}
 635
 636/* ------------------------------------------------------------------ */
 637
 638/* early init (no i2c, no irq) */
 639
 640static int saa7134_hw_enable1(struct saa7134_dev *dev)
 641{
 642        /* RAM FIFO config */
 643        saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 644        saa_writel(SAA7134_THRESHOULD, 0x02020202);
 645
 646        /* enable audio + video processing */
 647        saa_writel(SAA7134_MAIN_CTRL,
 648                        SAA7134_MAIN_CTRL_VPLLE |
 649                        SAA7134_MAIN_CTRL_APLLE |
 650                        SAA7134_MAIN_CTRL_EXOSC |
 651                        SAA7134_MAIN_CTRL_EVFE1 |
 652                        SAA7134_MAIN_CTRL_EVFE2 |
 653                        SAA7134_MAIN_CTRL_ESFE  |
 654                        SAA7134_MAIN_CTRL_EBDAC);
 655
 656        /*
 657        * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 658        * OSS initialization writes to registers via the audio DSP; these
 659        * writes will fail unless the audio clock has been started.  At worst,
 660        * audio will not work.
 661        */
 662
 663        /* enable peripheral devices */
 664        saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 665
 666        /* set vertical line numbering start (vbi needs this) */
 667        saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 668
 669        return 0;
 670}
 671
 672static int saa7134_hwinit1(struct saa7134_dev *dev)
 673{
 674        core_dbg("hwinit1\n");
 675
 676        saa_writel(SAA7134_IRQ1, 0);
 677        saa_writel(SAA7134_IRQ2, 0);
 678
 679        /* Clear any stale IRQ reports */
 680        saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 681
 682        mutex_init(&dev->lock);
 683        spin_lock_init(&dev->slock);
 684
 685        saa7134_track_gpio(dev,"pre-init");
 686        saa7134_video_init1(dev);
 687        saa7134_vbi_init1(dev);
 688        if (card_has_mpeg(dev))
 689                saa7134_ts_init1(dev);
 690        saa7134_input_init1(dev);
 691
 692        saa7134_hw_enable1(dev);
 693
 694        return 0;
 695}
 696
 697/* late init (with i2c + irq) */
 698static int saa7134_hw_enable2(struct saa7134_dev *dev)
 699{
 700
 701        unsigned int irq2_mask;
 702
 703        /* enable IRQ's */
 704        irq2_mask =
 705                SAA7134_IRQ2_INTE_DEC3    |
 706                SAA7134_IRQ2_INTE_DEC2    |
 707                SAA7134_IRQ2_INTE_DEC1    |
 708                SAA7134_IRQ2_INTE_DEC0    |
 709                SAA7134_IRQ2_INTE_PE      |
 710                SAA7134_IRQ2_INTE_AR;
 711
 712        if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 713                if (dev->remote->mask_keydown & 0x10000)
 714                        irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 715                else {          /* Allow enabling both IRQ edge triggers */
 716                        if (dev->remote->mask_keydown & 0x40000)
 717                                irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 718                        if (dev->remote->mask_keyup & 0x40000)
 719                                irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 720                }
 721        }
 722
 723        if (dev->has_remote == SAA7134_REMOTE_I2C) {
 724                request_module("ir-kbd-i2c");
 725        }
 726
 727        saa_writel(SAA7134_IRQ1, 0);
 728        saa_writel(SAA7134_IRQ2, irq2_mask);
 729
 730        return 0;
 731}
 732
 733static int saa7134_hwinit2(struct saa7134_dev *dev)
 734{
 735
 736        core_dbg("hwinit2\n");
 737
 738        saa7134_video_init2(dev);
 739        saa7134_tvaudio_init2(dev);
 740
 741        saa7134_hw_enable2(dev);
 742
 743        return 0;
 744}
 745
 746
 747/* shutdown */
 748static int saa7134_hwfini(struct saa7134_dev *dev)
 749{
 750        core_dbg("hwfini\n");
 751
 752        if (card_has_mpeg(dev))
 753                saa7134_ts_fini(dev);
 754        saa7134_input_fini(dev);
 755        saa7134_vbi_fini(dev);
 756        saa7134_tvaudio_fini(dev);
 757        saa7134_video_fini(dev);
 758        return 0;
 759}
 760
 761static void must_configure_manually(int has_eeprom)
 762{
 763        unsigned int i,p;
 764
 765        if (!has_eeprom)
 766                pr_warn("saa7134: <rant>\n"
 767                        "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 768                        "saa7134:  cents for a eeprom, thus your pci board has no\n"
 769                        "saa7134:  subsystem ID and I can't identify it automatically\n"
 770                        "saa7134: </rant>\n"
 771                        "saa7134: I feel better now.  Ok, here are the good news:\n"
 772                        "saa7134: You can use the card=<nr> insmod option to specify\n"
 773                        "saa7134: which board do you have.  The list:\n");
 774        else
 775                pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 776                        "saa7134: insmod option to specify which board do you have, but this is\n"
 777                        "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 778                        "saa7134: for support at linux-media@vger.kernel.org.\n"
 779                        "saa7134: The supported cards are:\n");
 780
 781        for (i = 0; i < saa7134_bcount; i++) {
 782                pr_warn("saa7134:   card=%d -> %-40.40s",
 783                       i,saa7134_boards[i].name);
 784                for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 785                        if (saa7134_pci_tbl[p].driver_data != i)
 786                                continue;
 787                        pr_cont(" %04x:%04x",
 788                               saa7134_pci_tbl[p].subvendor,
 789                               saa7134_pci_tbl[p].subdevice);
 790                }
 791                pr_cont("\n");
 792        }
 793}
 794
 795static void saa7134_unregister_media_device(struct saa7134_dev *dev)
 796{
 797
 798#ifdef CONFIG_MEDIA_CONTROLLER
 799        if (!dev->media_dev)
 800                return;
 801        media_device_unregister(dev->media_dev);
 802        media_device_cleanup(dev->media_dev);
 803        kfree(dev->media_dev);
 804        dev->media_dev = NULL;
 805#endif
 806}
 807
 808static void saa7134_media_release(struct saa7134_dev *dev)
 809{
 810#ifdef CONFIG_MEDIA_CONTROLLER
 811        int i;
 812
 813        for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
 814                media_device_unregister_entity(&dev->input_ent[i]);
 815#endif
 816}
 817
 818#if defined(CONFIG_MEDIA_CONTROLLER)
 819static void saa7134_create_entities(struct saa7134_dev *dev)
 820{
 821        int ret, i;
 822        struct media_entity *entity;
 823        struct media_entity *decoder = NULL;
 824
 825        /* Check if it is using an external analog TV demod */
 826        media_device_for_each_entity(entity, dev->media_dev) {
 827                if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 828                        decoder = entity;
 829                        break;
 830                }
 831        }
 832
 833        /*
 834         * saa713x is not using an external ATV demod.
 835         * Register the internal one
 836         */
 837        if (!decoder) {
 838                dev->demod.name = "saa713x";
 839                dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
 840                dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
 841                dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 842                dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
 843                dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
 844
 845                ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
 846                                             dev->demod_pad);
 847                if (ret < 0)
 848                        pr_err("failed to initialize demod pad!\n");
 849
 850                ret = media_device_register_entity(dev->media_dev, &dev->demod);
 851                if (ret < 0)
 852                        pr_err("failed to register demod entity!\n");
 853
 854                dev->decoder = &dev->demod;
 855        } else {
 856                dev->decoder = decoder;
 857        }
 858
 859        /* Initialize Video, VBI and Radio pads */
 860        dev->video_pad.flags = MEDIA_PAD_FL_SINK;
 861        ret = media_entity_pads_init(&dev->video_dev->entity, 1,
 862                                     &dev->video_pad);
 863        if (ret < 0)
 864                pr_err("failed to initialize video media entity!\n");
 865
 866        dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 867        ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
 868                                        &dev->vbi_pad);
 869        if (ret < 0)
 870                pr_err("failed to initialize vbi media entity!\n");
 871
 872        /* Create entities for each input connector */
 873        for (i = 0; i < SAA7134_INPUT_MAX; i++) {
 874                struct media_entity *ent = &dev->input_ent[i];
 875                struct saa7134_input *in = &card_in(dev, i);
 876
 877                if (in->type == SAA7134_NO_INPUT)
 878                        break;
 879
 880                /* This input uses the S-Video connector */
 881                if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
 882                        continue;
 883
 884                ent->name = saa7134_input_name[in->type];
 885                ent->flags = MEDIA_ENT_FL_CONNECTOR;
 886                dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 887
 888                switch (in->type) {
 889                case SAA7134_INPUT_COMPOSITE:
 890                case SAA7134_INPUT_COMPOSITE0:
 891                case SAA7134_INPUT_COMPOSITE1:
 892                case SAA7134_INPUT_COMPOSITE2:
 893                case SAA7134_INPUT_COMPOSITE3:
 894                case SAA7134_INPUT_COMPOSITE4:
 895                        ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 896                        break;
 897                case SAA7134_INPUT_SVIDEO:
 898                case SAA7134_INPUT_SVIDEO0:
 899                case SAA7134_INPUT_SVIDEO1:
 900                        ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 901                        break;
 902                default:
 903                        /*
 904                         * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
 905                         *
 906                         * Please notice that neither SAA7134_INPUT_MUTE or
 907                         * SAA7134_INPUT_RADIO are defined at
 908                         * saa7134_board.input.
 909                         */
 910                        ent->function = MEDIA_ENT_F_CONN_RF;
 911                        break;
 912                }
 913
 914                ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 915                if (ret < 0)
 916                        pr_err("failed to initialize input pad[%d]!\n", i);
 917
 918                ret = media_device_register_entity(dev->media_dev, ent);
 919                if (ret < 0)
 920                        pr_err("failed to register input entity %d!\n", i);
 921        }
 922
 923        /* Create input for Radio RF connector */
 924        if (card_has_radio(dev)) {
 925                struct saa7134_input *in = &saa7134_boards[dev->board].radio;
 926                struct media_entity *ent = &dev->input_ent[i];
 927
 928                ent->name = saa7134_input_name[in->type];
 929                ent->flags = MEDIA_ENT_FL_CONNECTOR;
 930                dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 931                ent->function = MEDIA_ENT_F_CONN_RF;
 932
 933                ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 934                if (ret < 0)
 935                        pr_err("failed to initialize input pad[%d]!\n", i);
 936
 937                ret = media_device_register_entity(dev->media_dev, ent);
 938                if (ret < 0)
 939                        pr_err("failed to register input entity %d!\n", i);
 940        }
 941}
 942#endif
 943
 944static struct video_device *vdev_init(struct saa7134_dev *dev,
 945                                      struct video_device *template,
 946                                      char *type)
 947{
 948        struct video_device *vfd;
 949
 950        vfd = video_device_alloc();
 951        if (NULL == vfd)
 952                return NULL;
 953        *vfd = *template;
 954        vfd->v4l2_dev  = &dev->v4l2_dev;
 955        vfd->release = video_device_release;
 956        snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 957                 dev->name, type, saa7134_boards[dev->board].name);
 958        video_set_drvdata(vfd, dev);
 959        return vfd;
 960}
 961
 962static void saa7134_unregister_video(struct saa7134_dev *dev)
 963{
 964        saa7134_media_release(dev);
 965
 966        if (dev->video_dev) {
 967                if (video_is_registered(dev->video_dev))
 968                        video_unregister_device(dev->video_dev);
 969                else
 970                        video_device_release(dev->video_dev);
 971                dev->video_dev = NULL;
 972        }
 973        if (dev->vbi_dev) {
 974                if (video_is_registered(dev->vbi_dev))
 975                        video_unregister_device(dev->vbi_dev);
 976                else
 977                        video_device_release(dev->vbi_dev);
 978                dev->vbi_dev = NULL;
 979        }
 980        if (dev->radio_dev) {
 981                if (video_is_registered(dev->radio_dev))
 982                        video_unregister_device(dev->radio_dev);
 983                else
 984                        video_device_release(dev->radio_dev);
 985                dev->radio_dev = NULL;
 986        }
 987}
 988
 989static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 990                            struct saa7134_dev *dev)
 991{
 992        int err;
 993
 994        if (NULL != dev->mops)
 995                return;
 996        if (saa7134_boards[dev->board].mpeg != ops->type)
 997                return;
 998        err = ops->init(dev);
 999        if (0 != err)
1000                return;
1001        dev->mops = ops;
1002}
1003
1004static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1005                            struct saa7134_dev *dev)
1006{
1007        if (NULL == dev->mops)
1008                return;
1009        if (dev->mops != ops)
1010                return;
1011        dev->mops->fini(dev);
1012        dev->mops = NULL;
1013}
1014
1015static int saa7134_initdev(struct pci_dev *pci_dev,
1016                           const struct pci_device_id *pci_id)
1017{
1018        struct saa7134_dev *dev;
1019        struct saa7134_mpeg_ops *mops;
1020        int err;
1021
1022        if (saa7134_devcount == SAA7134_MAXBOARDS)
1023                return -ENOMEM;
1024
1025        dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1026        if (NULL == dev)
1027                return -ENOMEM;
1028
1029        dev->nr = saa7134_devcount;
1030        sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1031
1032#ifdef CONFIG_MEDIA_CONTROLLER
1033        dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1034        if (!dev->media_dev) {
1035                err = -ENOMEM;
1036                goto fail0;
1037        }
1038        media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1039        dev->v4l2_dev.mdev = dev->media_dev;
1040#endif
1041
1042        err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1043        if (err)
1044                goto fail0;
1045
1046        /* pci init */
1047        dev->pci = pci_dev;
1048        if (pci_enable_device(pci_dev)) {
1049                err = -EIO;
1050                goto fail1;
1051        }
1052
1053        /* pci quirks */
1054        if (pci_pci_problems) {
1055                if (pci_pci_problems & PCIPCI_TRITON)
1056                        pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1057                if (pci_pci_problems & PCIPCI_NATOMA)
1058                        pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1059                if (pci_pci_problems & PCIPCI_VIAETBF)
1060                        pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1061                if (pci_pci_problems & PCIPCI_VSFX)
1062                        pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1063#ifdef PCIPCI_ALIMAGIK
1064                if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1065                        pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1066                               dev->name);
1067                        latency = 0x0A;
1068                }
1069#endif
1070                if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1071                        pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1072                                dev->name);
1073                        if (!saa7134_no_overlay) {
1074                                pr_info("%s: quirk: overlay mode will be disabled.\n",
1075                                                dev->name);
1076                                saa7134_no_overlay = 1;
1077                        } else {
1078                                pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1079                                                dev->name);
1080                        }
1081                }
1082        }
1083        if (UNSET != latency) {
1084                pr_info("%s: setting pci latency timer to %d\n",
1085                       dev->name,latency);
1086                pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1087        }
1088
1089        /* print pci info */
1090        dev->pci_rev = pci_dev->revision;
1091        pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1092        pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1093                dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1094                dev->pci_lat,
1095                (unsigned long long)pci_resource_start(pci_dev, 0));
1096        pci_set_master(pci_dev);
1097        err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1098        if (err) {
1099                pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1100                goto fail1;
1101        }
1102
1103        /* board config */
1104        dev->board = pci_id->driver_data;
1105        if ((unsigned)card[dev->nr] < saa7134_bcount)
1106                dev->board = card[dev->nr];
1107        if (SAA7134_BOARD_UNKNOWN == dev->board)
1108                must_configure_manually(0);
1109        else if (SAA7134_BOARD_NOAUTO == dev->board) {
1110                must_configure_manually(1);
1111                dev->board = SAA7134_BOARD_UNKNOWN;
1112        }
1113        dev->autodetected = card[dev->nr] != dev->board;
1114        dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1115        dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1116        dev->radio_type = saa7134_boards[dev->board].radio_type;
1117        dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1118        dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1119        if (UNSET != tuner[dev->nr])
1120                dev->tuner_type = tuner[dev->nr];
1121        pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1122                dev->name,pci_dev->subsystem_vendor,
1123                pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1124                dev->board, dev->autodetected ?
1125                "autodetected" : "insmod option");
1126
1127        /* get mmio */
1128        if (!request_mem_region(pci_resource_start(pci_dev,0),
1129                                pci_resource_len(pci_dev,0),
1130                                dev->name)) {
1131                err = -EBUSY;
1132                pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1133                       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1134                goto fail1;
1135        }
1136        dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1137                             pci_resource_len(pci_dev, 0));
1138        dev->bmmio = (__u8 __iomem *)dev->lmmio;
1139        if (NULL == dev->lmmio) {
1140                err = -EIO;
1141                pr_err("%s: can't ioremap() MMIO memory\n",
1142                       dev->name);
1143                goto fail2;
1144        }
1145
1146        /* initialize hardware #1 */
1147        saa7134_board_init1(dev);
1148        saa7134_hwinit1(dev);
1149
1150        /* get irq */
1151        err = request_irq(pci_dev->irq, saa7134_irq,
1152                          IRQF_SHARED, dev->name, dev);
1153        if (err < 0) {
1154                pr_err("%s: can't get IRQ %d\n",
1155                       dev->name,pci_dev->irq);
1156                goto fail3;
1157        }
1158
1159        /* wait a bit, register i2c bus */
1160        msleep(100);
1161        saa7134_i2c_register(dev);
1162        saa7134_board_init2(dev);
1163
1164        saa7134_hwinit2(dev);
1165
1166        /* load i2c helpers */
1167        if (card_is_empress(dev)) {
1168                dev->empress_sd =
1169                        v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1170                                "saa6752hs",
1171                                saa7134_boards[dev->board].empress_addr, NULL);
1172
1173                if (dev->empress_sd)
1174                        dev->empress_sd->grp_id = GRP_EMPRESS;
1175        }
1176
1177        if (saa7134_boards[dev->board].rds_addr) {
1178                struct v4l2_subdev *sd;
1179
1180                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1181                                &dev->i2c_adap, "saa6588",
1182                                0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1183                if (sd) {
1184                        pr_info("%s: found RDS decoder\n", dev->name);
1185                        dev->has_rds = 1;
1186                }
1187        }
1188
1189        mutex_lock(&saa7134_devlist_lock);
1190        list_for_each_entry(mops, &mops_list, next)
1191                mpeg_ops_attach(mops, dev);
1192        list_add_tail(&dev->devlist, &saa7134_devlist);
1193        mutex_unlock(&saa7134_devlist_lock);
1194
1195        /* check for signal */
1196        saa7134_irq_video_signalchange(dev);
1197
1198        if (TUNER_ABSENT != dev->tuner_type)
1199                saa_call_all(dev, core, s_power, 0);
1200
1201        /* register v4l devices */
1202        if (saa7134_no_overlay > 0)
1203                pr_info("%s: Overlay support disabled.\n", dev->name);
1204
1205        dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1206        dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1207        dev->video_dev->lock = &dev->lock;
1208        dev->video_dev->queue = &dev->video_vbq;
1209        dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1210                                      V4L2_CAP_VIDEO_CAPTURE;
1211        if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1212                dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1213
1214        if (saa7134_no_overlay <= 0)
1215                dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1216
1217        err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1218                                    video_nr[dev->nr]);
1219        if (err < 0) {
1220                pr_info("%s: can't register video device\n",
1221                       dev->name);
1222                goto fail4;
1223        }
1224        pr_info("%s: registered device %s [v4l2]\n",
1225               dev->name, video_device_node_name(dev->video_dev));
1226
1227        dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1228        dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1229        dev->vbi_dev->lock = &dev->lock;
1230        dev->vbi_dev->queue = &dev->vbi_vbq;
1231        dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1232                                    V4L2_CAP_VBI_CAPTURE;
1233        if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1234                dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1235
1236        err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1237                                    vbi_nr[dev->nr]);
1238        if (err < 0)
1239                goto fail4;
1240        pr_info("%s: registered device %s\n",
1241               dev->name, video_device_node_name(dev->vbi_dev));
1242
1243        if (card_has_radio(dev)) {
1244                dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1245                dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1246                dev->radio_dev->lock = &dev->lock;
1247                dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1248                if (dev->has_rds)
1249                        dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1250                err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1251                                            radio_nr[dev->nr]);
1252                if (err < 0)
1253                        goto fail4;
1254                pr_info("%s: registered device %s\n",
1255                       dev->name, video_device_node_name(dev->radio_dev));
1256        }
1257
1258#ifdef CONFIG_MEDIA_CONTROLLER
1259        saa7134_create_entities(dev);
1260
1261        err = v4l2_mc_create_media_graph(dev->media_dev);
1262        if (err) {
1263                pr_err("failed to create media graph\n");
1264                goto fail4;
1265        }
1266#endif
1267        /* everything worked */
1268        saa7134_devcount++;
1269
1270        if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1271                saa7134_dmasound_init(dev);
1272
1273        request_submodules(dev);
1274
1275        /*
1276         * Do it at the end, to reduce dynamic configuration changes during
1277         * the device init. Yet, as request_modules() can be async, the
1278         * topology will likely change after load the saa7134 subdrivers.
1279         */
1280#ifdef CONFIG_MEDIA_CONTROLLER
1281        err = media_device_register(dev->media_dev);
1282        if (err)
1283                goto fail4;
1284#endif
1285
1286        return 0;
1287
1288 fail4:
1289        saa7134_unregister_video(dev);
1290        saa7134_i2c_unregister(dev);
1291        free_irq(pci_dev->irq, dev);
1292 fail3:
1293        saa7134_hwfini(dev);
1294        iounmap(dev->lmmio);
1295 fail2:
1296        release_mem_region(pci_resource_start(pci_dev,0),
1297                           pci_resource_len(pci_dev,0));
1298 fail1:
1299        v4l2_device_unregister(&dev->v4l2_dev);
1300 fail0:
1301#ifdef CONFIG_MEDIA_CONTROLLER
1302        kfree(dev->media_dev);
1303#endif
1304        kfree(dev);
1305        return err;
1306}
1307
1308static void saa7134_finidev(struct pci_dev *pci_dev)
1309{
1310        struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1311        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1312        struct saa7134_mpeg_ops *mops;
1313
1314        flush_request_submodules(dev);
1315
1316        /* Release DMA sound modules if present */
1317        if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1318                saa7134_dmasound_exit(dev);
1319        }
1320
1321        /* debugging ... */
1322        if (irq_debug) {
1323                u32 report = saa_readl(SAA7134_IRQ_REPORT);
1324                u32 status = saa_readl(SAA7134_IRQ_STATUS);
1325                print_irqstatus(dev,42,report,status);
1326        }
1327
1328        /* disable peripheral devices */
1329        saa_writeb(SAA7134_SPECIAL_MODE,0);
1330
1331        /* shutdown hardware */
1332        saa_writel(SAA7134_IRQ1,0);
1333        saa_writel(SAA7134_IRQ2,0);
1334        saa_writel(SAA7134_MAIN_CTRL,0);
1335
1336        /* shutdown subsystems */
1337        saa7134_hwfini(dev);
1338
1339        /* unregister */
1340        mutex_lock(&saa7134_devlist_lock);
1341        list_del(&dev->devlist);
1342        list_for_each_entry(mops, &mops_list, next)
1343                mpeg_ops_detach(mops, dev);
1344        mutex_unlock(&saa7134_devlist_lock);
1345        saa7134_devcount--;
1346
1347        saa7134_i2c_unregister(dev);
1348        saa7134_unregister_video(dev);
1349
1350
1351        /* the DMA sound modules should be unloaded before reaching
1352           this, but just in case they are still present... */
1353        if (dev->dmasound.priv_data != NULL) {
1354                free_irq(pci_dev->irq, &dev->dmasound);
1355                dev->dmasound.priv_data = NULL;
1356        }
1357
1358
1359        /* release resources */
1360        free_irq(pci_dev->irq, dev);
1361        iounmap(dev->lmmio);
1362        release_mem_region(pci_resource_start(pci_dev,0),
1363                           pci_resource_len(pci_dev,0));
1364
1365        v4l2_device_unregister(&dev->v4l2_dev);
1366
1367        saa7134_unregister_media_device(dev);
1368
1369        /* free memory */
1370        kfree(dev);
1371}
1372
1373#ifdef CONFIG_PM
1374
1375/* resends a current buffer in queue after resume */
1376static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1377                                  struct saa7134_dmaqueue *q)
1378{
1379        struct saa7134_buf *buf, *next;
1380
1381        assert_spin_locked(&dev->slock);
1382
1383        buf  = q->curr;
1384        next = buf;
1385        core_dbg("buffer_requeue\n");
1386
1387        if (!buf)
1388                return 0;
1389
1390        core_dbg("buffer_requeue : resending active buffer\n");
1391
1392        if (!list_empty(&q->queue))
1393                next = list_entry(q->queue.next, struct saa7134_buf,
1394                                          entry);
1395        buf->activate(dev, buf, next);
1396
1397        return 0;
1398}
1399
1400static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1401{
1402        struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1403        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1404
1405        /* disable overlay - apps should enable it explicitly on resume*/
1406        dev->ovenable = 0;
1407
1408        /* Disable interrupts, DMA, and rest of the chip*/
1409        saa_writel(SAA7134_IRQ1, 0);
1410        saa_writel(SAA7134_IRQ2, 0);
1411        saa_writel(SAA7134_MAIN_CTRL, 0);
1412
1413        dev->insuspend = 1;
1414        synchronize_irq(pci_dev->irq);
1415
1416        /* ACK interrupts once more, just in case,
1417                since the IRQ handler won't ack them anymore*/
1418
1419        saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1420
1421        /* Disable timeout timers - if we have active buffers, we will
1422           fill them on resume*/
1423
1424        del_timer(&dev->video_q.timeout);
1425        del_timer(&dev->vbi_q.timeout);
1426        del_timer(&dev->ts_q.timeout);
1427
1428        if (dev->remote && dev->remote->dev->users)
1429                saa7134_ir_close(dev->remote->dev);
1430
1431        pci_save_state(pci_dev);
1432        pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1433
1434        return 0;
1435}
1436
1437static int saa7134_resume(struct pci_dev *pci_dev)
1438{
1439        struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1440        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1441        unsigned long flags;
1442
1443        pci_set_power_state(pci_dev, PCI_D0);
1444        pci_restore_state(pci_dev);
1445
1446        /* Do things that are done in saa7134_initdev ,
1447                except of initializing memory structures.*/
1448
1449        saa7134_board_init1(dev);
1450
1451        /* saa7134_hwinit1 */
1452        if (saa7134_boards[dev->board].video_out)
1453                saa7134_videoport_init(dev);
1454        if (card_has_mpeg(dev))
1455                saa7134_ts_init_hw(dev);
1456        if (dev->remote && dev->remote->dev->users)
1457                saa7134_ir_open(dev->remote->dev);
1458        saa7134_hw_enable1(dev);
1459
1460        msleep(100);
1461
1462        saa7134_board_init2(dev);
1463
1464        /*saa7134_hwinit2*/
1465        saa7134_set_tvnorm_hw(dev);
1466        saa7134_tvaudio_setmute(dev);
1467        saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1468        saa7134_tvaudio_init(dev);
1469        saa7134_enable_i2s(dev);
1470        saa7134_hw_enable2(dev);
1471
1472        saa7134_irq_video_signalchange(dev);
1473
1474        /*resume unfinished buffer(s)*/
1475        spin_lock_irqsave(&dev->slock, flags);
1476        saa7134_buffer_requeue(dev, &dev->video_q);
1477        saa7134_buffer_requeue(dev, &dev->vbi_q);
1478        saa7134_buffer_requeue(dev, &dev->ts_q);
1479
1480        /* FIXME: Disable DMA audio sound - temporary till proper support
1481                  is implemented*/
1482
1483        dev->dmasound.dma_running = 0;
1484
1485        /* start DMA now*/
1486        dev->insuspend = 0;
1487        smp_wmb();
1488        saa7134_set_dmabits(dev);
1489        spin_unlock_irqrestore(&dev->slock, flags);
1490
1491        return 0;
1492}
1493#endif
1494
1495/* ----------------------------------------------------------- */
1496
1497int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1498{
1499        struct saa7134_dev *dev;
1500
1501        mutex_lock(&saa7134_devlist_lock);
1502        list_for_each_entry(dev, &saa7134_devlist, devlist)
1503                mpeg_ops_attach(ops, dev);
1504        list_add_tail(&ops->next,&mops_list);
1505        mutex_unlock(&saa7134_devlist_lock);
1506        return 0;
1507}
1508
1509void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1510{
1511        struct saa7134_dev *dev;
1512
1513        mutex_lock(&saa7134_devlist_lock);
1514        list_del(&ops->next);
1515        list_for_each_entry(dev, &saa7134_devlist, devlist)
1516                mpeg_ops_detach(ops, dev);
1517        mutex_unlock(&saa7134_devlist_lock);
1518}
1519
1520EXPORT_SYMBOL(saa7134_ts_register);
1521EXPORT_SYMBOL(saa7134_ts_unregister);
1522
1523/* ----------------------------------------------------------- */
1524
1525static struct pci_driver saa7134_pci_driver = {
1526        .name     = "saa7134",
1527        .id_table = saa7134_pci_tbl,
1528        .probe    = saa7134_initdev,
1529        .remove   = saa7134_finidev,
1530#ifdef CONFIG_PM
1531        .suspend  = saa7134_suspend,
1532        .resume   = saa7134_resume
1533#endif
1534};
1535
1536static int __init saa7134_init(void)
1537{
1538        INIT_LIST_HEAD(&saa7134_devlist);
1539        pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1540               SAA7134_VERSION);
1541        return pci_register_driver(&saa7134_pci_driver);
1542}
1543
1544static void __exit saa7134_fini(void)
1545{
1546        pci_unregister_driver(&saa7134_pci_driver);
1547}
1548
1549module_init(saa7134_init);
1550module_exit(saa7134_fini);
1551
1552/* ----------------------------------------------------------- */
1553
1554EXPORT_SYMBOL(saa7134_set_gpio);
1555EXPORT_SYMBOL(saa7134_boards);
1556
1557/* ----------------- for the DMA sound modules --------------- */
1558
1559EXPORT_SYMBOL(saa7134_dmasound_init);
1560EXPORT_SYMBOL(saa7134_dmasound_exit);
1561EXPORT_SYMBOL(saa7134_pgtable_free);
1562EXPORT_SYMBOL(saa7134_pgtable_build);
1563EXPORT_SYMBOL(saa7134_pgtable_alloc);
1564EXPORT_SYMBOL(saa7134_set_dmabits);
1565