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        list_for_each_safe(pos, n, &q->queue) {
 363                tmp = list_entry(pos, struct saa7134_buf, entry);
 364                vb2_buffer_done(&tmp->vb2.vb2_buf,
 365                                VB2_BUF_STATE_ERROR);
 366                list_del(pos);
 367                tmp = NULL;
 368        }
 369        spin_unlock_irqrestore(&dev->slock, flags);
 370        saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
 371}
 372EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 373
 374/* ------------------------------------------------------------------ */
 375
 376int saa7134_set_dmabits(struct saa7134_dev *dev)
 377{
 378        u32 split, task=0, ctrl=0, irq=0;
 379        enum v4l2_field cap = V4L2_FIELD_ANY;
 380        enum v4l2_field ov  = V4L2_FIELD_ANY;
 381
 382        assert_spin_locked(&dev->slock);
 383
 384        if (dev->insuspend)
 385                return 0;
 386
 387        /* video capture -- dma 0 + video task A */
 388        if (dev->video_q.curr) {
 389                task |= 0x01;
 390                ctrl |= SAA7134_MAIN_CTRL_TE0;
 391                irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 392                        SAA7134_IRQ1_INTE_RA0_0;
 393                cap = dev->field;
 394        }
 395
 396        /* video capture -- dma 1+2 (planar modes) */
 397        if (dev->video_q.curr && dev->fmt->planar) {
 398                ctrl |= SAA7134_MAIN_CTRL_TE4 |
 399                        SAA7134_MAIN_CTRL_TE5;
 400        }
 401
 402        /* screen overlay -- dma 0 + video task B */
 403        if (dev->ovenable) {
 404                task |= 0x10;
 405                ctrl |= SAA7134_MAIN_CTRL_TE1;
 406                ov = dev->ovfield;
 407        }
 408
 409        /* vbi capture -- dma 0 + vbi task A+B */
 410        if (dev->vbi_q.curr) {
 411                task |= 0x22;
 412                ctrl |= SAA7134_MAIN_CTRL_TE2 |
 413                        SAA7134_MAIN_CTRL_TE3;
 414                irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 415                        SAA7134_IRQ1_INTE_RA0_6 |
 416                        SAA7134_IRQ1_INTE_RA0_5 |
 417                        SAA7134_IRQ1_INTE_RA0_4;
 418        }
 419
 420        /* audio capture -- dma 3 */
 421        if (dev->dmasound.dma_running) {
 422                ctrl |= SAA7134_MAIN_CTRL_TE6;
 423                irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 424                        SAA7134_IRQ1_INTE_RA3_0;
 425        }
 426
 427        /* TS capture -- dma 5 */
 428        if (dev->ts_q.curr) {
 429                ctrl |= SAA7134_MAIN_CTRL_TE5;
 430                irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 431                        SAA7134_IRQ1_INTE_RA2_0;
 432        }
 433
 434        /* set task conditions + field handling */
 435        if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 436                /* default config -- use full frames */
 437                saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 438                saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 439                saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 440                saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 441                split = 0;
 442        } else {
 443                /* split fields between tasks */
 444                if (V4L2_FIELD_TOP == cap) {
 445                        /* odd A, even B, repeat */
 446                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 447                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 448                } else {
 449                        /* odd B, even A, repeat */
 450                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 451                        saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 452                }
 453                saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 454                saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 455                split = 1;
 456        }
 457
 458        /* irqs */
 459        saa_writeb(SAA7134_REGION_ENABLE, task);
 460        saa_writel(SAA7134_IRQ1,          irq);
 461        saa_andorl(SAA7134_MAIN_CTRL,
 462                   SAA7134_MAIN_CTRL_TE0 |
 463                   SAA7134_MAIN_CTRL_TE1 |
 464                   SAA7134_MAIN_CTRL_TE2 |
 465                   SAA7134_MAIN_CTRL_TE3 |
 466                   SAA7134_MAIN_CTRL_TE4 |
 467                   SAA7134_MAIN_CTRL_TE5 |
 468                   SAA7134_MAIN_CTRL_TE6,
 469                   ctrl);
 470        core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 471                task, ctrl, irq, split ? "no" : "yes");
 472
 473        return 0;
 474}
 475
 476/* ------------------------------------------------------------------ */
 477/* IRQ handler + helpers                                              */
 478
 479static char *irqbits[] = {
 480        "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 481        "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 482        "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 483        "GPIO16", "GPIO18", "GPIO22", "GPIO23"
 484};
 485#define IRQBITS ARRAY_SIZE(irqbits)
 486
 487static void print_irqstatus(struct saa7134_dev *dev, int loop,
 488                            unsigned long report, unsigned long status)
 489{
 490        unsigned int i;
 491
 492        irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 493                loop, jiffies, report, status);
 494        for (i = 0; i < IRQBITS; i++) {
 495                if (!(report & (1 << i)))
 496                        continue;
 497                pr_cont(" %s", irqbits[i]);
 498        }
 499        if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 500                pr_cont(" | RA0=%s,%s,%s,%ld",
 501                        (status & 0x40) ? "vbi"  : "video",
 502                        (status & 0x20) ? "b"    : "a",
 503                        (status & 0x10) ? "odd"  : "even",
 504                        (status & 0x0f));
 505        }
 506        pr_cont("\n");
 507}
 508
 509static irqreturn_t saa7134_irq(int irq, void *dev_id)
 510{
 511        struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 512        unsigned long report,status;
 513        int loop, handled = 0;
 514
 515        if (dev->insuspend)
 516                goto out;
 517
 518        for (loop = 0; loop < 10; loop++) {
 519                report = saa_readl(SAA7134_IRQ_REPORT);
 520                status = saa_readl(SAA7134_IRQ_STATUS);
 521
 522                /* If dmasound support is active and we get a sound report,
 523                 * mask out the report and let the saa7134-alsa module deal
 524                 * with it */
 525                if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 526                        (dev->dmasound.priv_data != NULL) )
 527                {
 528                        irq_dbg(2, "preserving DMA sound interrupt\n");
 529                        report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 530                }
 531
 532                if (0 == report) {
 533                        irq_dbg(2, "no (more) work\n");
 534                        goto out;
 535                }
 536
 537                handled = 1;
 538                saa_writel(SAA7134_IRQ_REPORT,report);
 539                if (irq_debug)
 540                        print_irqstatus(dev,loop,report,status);
 541
 542
 543                if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 544                        (report & SAA7134_IRQ_REPORT_INTL))
 545                                saa7134_irq_video_signalchange(dev);
 546
 547
 548                if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 549                    (status & 0x60) == 0)
 550                        saa7134_irq_video_done(dev,status);
 551
 552                if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 553                    (status & 0x40) == 0x40)
 554                        saa7134_irq_vbi_done(dev,status);
 555
 556                if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 557                    card_has_mpeg(dev)) {
 558                        if (dev->mops->irq_ts_done != NULL)
 559                                dev->mops->irq_ts_done(dev, status);
 560                        else
 561                                saa7134_irq_ts_done(dev, status);
 562                }
 563
 564                if (report & SAA7134_IRQ_REPORT_GPIO16) {
 565                        switch (dev->has_remote) {
 566                                case SAA7134_REMOTE_GPIO:
 567                                        if (!dev->remote)
 568                                                break;
 569                                        if  (dev->remote->mask_keydown & 0x10000) {
 570                                                saa7134_input_irq(dev);
 571                                        }
 572                                        break;
 573
 574                                case SAA7134_REMOTE_I2C:
 575                                        break;                  /* FIXME: invoke I2C get_key() */
 576
 577                                default:                        /* GPIO16 not used by IR remote */
 578                                        break;
 579                        }
 580                }
 581
 582                if (report & SAA7134_IRQ_REPORT_GPIO18) {
 583                        switch (dev->has_remote) {
 584                                case SAA7134_REMOTE_GPIO:
 585                                        if (!dev->remote)
 586                                                break;
 587                                        if ((dev->remote->mask_keydown & 0x40000) ||
 588                                            (dev->remote->mask_keyup & 0x40000)) {
 589                                                saa7134_input_irq(dev);
 590                                        }
 591                                        break;
 592
 593                                case SAA7134_REMOTE_I2C:
 594                                        break;                  /* FIXME: invoke I2C get_key() */
 595
 596                                default:                        /* GPIO18 not used by IR remote */
 597                                        break;
 598                        }
 599                }
 600        }
 601
 602        if (10 == loop) {
 603                print_irqstatus(dev,loop,report,status);
 604                if (report & SAA7134_IRQ_REPORT_PE) {
 605                        /* disable all parity error */
 606                        pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
 607                                dev->name);
 608                        saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 609                } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 610                        /* disable gpio16 IRQ */
 611                        pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
 612                                dev->name);
 613                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 614                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 615                } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 616                        /* disable gpio18 IRQs */
 617                        pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
 618                                dev->name);
 619                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 620                        saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 621                } else {
 622                        /* disable all irqs */
 623                        pr_warn("%s/irq: looping -- clearing all enable bits\n",
 624                                dev->name);
 625                        saa_writel(SAA7134_IRQ1,0);
 626                        saa_writel(SAA7134_IRQ2,0);
 627                }
 628        }
 629
 630 out:
 631        return IRQ_RETVAL(handled);
 632}
 633
 634/* ------------------------------------------------------------------ */
 635
 636/* early init (no i2c, no irq) */
 637
 638static int saa7134_hw_enable1(struct saa7134_dev *dev)
 639{
 640        /* RAM FIFO config */
 641        saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 642        saa_writel(SAA7134_THRESHOULD, 0x02020202);
 643
 644        /* enable audio + video processing */
 645        saa_writel(SAA7134_MAIN_CTRL,
 646                        SAA7134_MAIN_CTRL_VPLLE |
 647                        SAA7134_MAIN_CTRL_APLLE |
 648                        SAA7134_MAIN_CTRL_EXOSC |
 649                        SAA7134_MAIN_CTRL_EVFE1 |
 650                        SAA7134_MAIN_CTRL_EVFE2 |
 651                        SAA7134_MAIN_CTRL_ESFE  |
 652                        SAA7134_MAIN_CTRL_EBDAC);
 653
 654        /*
 655        * Initialize OSS _after_ enabling audio clock PLL and audio processing.
 656        * OSS initialization writes to registers via the audio DSP; these
 657        * writes will fail unless the audio clock has been started.  At worst,
 658        * audio will not work.
 659        */
 660
 661        /* enable peripheral devices */
 662        saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 663
 664        /* set vertical line numbering start (vbi needs this) */
 665        saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 666
 667        return 0;
 668}
 669
 670static int saa7134_hwinit1(struct saa7134_dev *dev)
 671{
 672        core_dbg("hwinit1\n");
 673
 674        saa_writel(SAA7134_IRQ1, 0);
 675        saa_writel(SAA7134_IRQ2, 0);
 676
 677        /* Clear any stale IRQ reports */
 678        saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 679
 680        mutex_init(&dev->lock);
 681        spin_lock_init(&dev->slock);
 682
 683        saa7134_track_gpio(dev,"pre-init");
 684        saa7134_video_init1(dev);
 685        saa7134_vbi_init1(dev);
 686        if (card_has_mpeg(dev))
 687                saa7134_ts_init1(dev);
 688        saa7134_input_init1(dev);
 689
 690        saa7134_hw_enable1(dev);
 691
 692        return 0;
 693}
 694
 695/* late init (with i2c + irq) */
 696static int saa7134_hw_enable2(struct saa7134_dev *dev)
 697{
 698
 699        unsigned int irq2_mask;
 700
 701        /* enable IRQ's */
 702        irq2_mask =
 703                SAA7134_IRQ2_INTE_DEC3    |
 704                SAA7134_IRQ2_INTE_DEC2    |
 705                SAA7134_IRQ2_INTE_DEC1    |
 706                SAA7134_IRQ2_INTE_DEC0    |
 707                SAA7134_IRQ2_INTE_PE      |
 708                SAA7134_IRQ2_INTE_AR;
 709
 710        if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 711                if (dev->remote->mask_keydown & 0x10000)
 712                        irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 713                else {          /* Allow enabling both IRQ edge triggers */
 714                        if (dev->remote->mask_keydown & 0x40000)
 715                                irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 716                        if (dev->remote->mask_keyup & 0x40000)
 717                                irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 718                }
 719        }
 720
 721        if (dev->has_remote == SAA7134_REMOTE_I2C) {
 722                request_module("ir-kbd-i2c");
 723        }
 724
 725        saa_writel(SAA7134_IRQ1, 0);
 726        saa_writel(SAA7134_IRQ2, irq2_mask);
 727
 728        return 0;
 729}
 730
 731static int saa7134_hwinit2(struct saa7134_dev *dev)
 732{
 733
 734        core_dbg("hwinit2\n");
 735
 736        saa7134_video_init2(dev);
 737        saa7134_tvaudio_init2(dev);
 738
 739        saa7134_hw_enable2(dev);
 740
 741        return 0;
 742}
 743
 744
 745/* shutdown */
 746static int saa7134_hwfini(struct saa7134_dev *dev)
 747{
 748        core_dbg("hwfini\n");
 749
 750        if (card_has_mpeg(dev))
 751                saa7134_ts_fini(dev);
 752        saa7134_input_fini(dev);
 753        saa7134_vbi_fini(dev);
 754        saa7134_tvaudio_fini(dev);
 755        saa7134_video_fini(dev);
 756        return 0;
 757}
 758
 759static void must_configure_manually(int has_eeprom)
 760{
 761        unsigned int i,p;
 762
 763        if (!has_eeprom)
 764                pr_warn("saa7134: <rant>\n"
 765                        "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 766                        "saa7134:  cents for a eeprom, thus your pci board has no\n"
 767                        "saa7134:  subsystem ID and I can't identify it automatically\n"
 768                        "saa7134: </rant>\n"
 769                        "saa7134: I feel better now.  Ok, here are the good news:\n"
 770                        "saa7134: You can use the card=<nr> insmod option to specify\n"
 771                        "saa7134: which board do you have.  The list:\n");
 772        else
 773                pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 774                        "saa7134: insmod option to specify which board do you have, but this is\n"
 775                        "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 776                        "saa7134: for support at linux-media@vger.kernel.org.\n"
 777                        "saa7134: The supported cards are:\n");
 778
 779        for (i = 0; i < saa7134_bcount; i++) {
 780                pr_warn("saa7134:   card=%d -> %-40.40s",
 781                       i,saa7134_boards[i].name);
 782                for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 783                        if (saa7134_pci_tbl[p].driver_data != i)
 784                                continue;
 785                        pr_cont(" %04x:%04x",
 786                               saa7134_pci_tbl[p].subvendor,
 787                               saa7134_pci_tbl[p].subdevice);
 788                }
 789                pr_cont("\n");
 790        }
 791}
 792
 793static void saa7134_unregister_media_device(struct saa7134_dev *dev)
 794{
 795
 796#ifdef CONFIG_MEDIA_CONTROLLER
 797        if (!dev->media_dev)
 798                return;
 799        media_device_unregister(dev->media_dev);
 800        media_device_cleanup(dev->media_dev);
 801        kfree(dev->media_dev);
 802        dev->media_dev = NULL;
 803#endif
 804}
 805
 806static void saa7134_media_release(struct saa7134_dev *dev)
 807{
 808#ifdef CONFIG_MEDIA_CONTROLLER
 809        int i;
 810
 811        for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
 812                media_device_unregister_entity(&dev->input_ent[i]);
 813#endif
 814}
 815
 816#if defined(CONFIG_MEDIA_CONTROLLER)
 817static void saa7134_create_entities(struct saa7134_dev *dev)
 818{
 819        int ret, i;
 820        struct media_entity *entity;
 821        struct media_entity *decoder = NULL;
 822
 823        /* Check if it is using an external analog TV demod */
 824        media_device_for_each_entity(entity, dev->media_dev) {
 825                if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 826                        decoder = entity;
 827                        break;
 828                }
 829        }
 830
 831        /*
 832         * saa713x is not using an external ATV demod.
 833         * Register the internal one
 834         */
 835        if (!decoder) {
 836                dev->demod.name = "saa713x";
 837                dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
 838                dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
 839                dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 840                dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
 841                dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
 842
 843                ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
 844                                             dev->demod_pad);
 845                if (ret < 0)
 846                        pr_err("failed to initialize demod pad!\n");
 847
 848                ret = media_device_register_entity(dev->media_dev, &dev->demod);
 849                if (ret < 0)
 850                        pr_err("failed to register demod entity!\n");
 851
 852                dev->decoder = &dev->demod;
 853        } else {
 854                dev->decoder = decoder;
 855        }
 856
 857        /* Initialize Video, VBI and Radio pads */
 858        dev->video_pad.flags = MEDIA_PAD_FL_SINK;
 859        ret = media_entity_pads_init(&dev->video_dev->entity, 1,
 860                                     &dev->video_pad);
 861        if (ret < 0)
 862                pr_err("failed to initialize video media entity!\n");
 863
 864        dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 865        ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
 866                                        &dev->vbi_pad);
 867        if (ret < 0)
 868                pr_err("failed to initialize vbi media entity!\n");
 869
 870        /* Create entities for each input connector */
 871        for (i = 0; i < SAA7134_INPUT_MAX; i++) {
 872                struct media_entity *ent = &dev->input_ent[i];
 873                struct saa7134_input *in = &card_in(dev, i);
 874
 875                if (in->type == SAA7134_NO_INPUT)
 876                        break;
 877
 878                /* This input uses the S-Video connector */
 879                if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
 880                        continue;
 881
 882                ent->name = saa7134_input_name[in->type];
 883                ent->flags = MEDIA_ENT_FL_CONNECTOR;
 884                dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 885
 886                switch (in->type) {
 887                case SAA7134_INPUT_COMPOSITE:
 888                case SAA7134_INPUT_COMPOSITE0:
 889                case SAA7134_INPUT_COMPOSITE1:
 890                case SAA7134_INPUT_COMPOSITE2:
 891                case SAA7134_INPUT_COMPOSITE3:
 892                case SAA7134_INPUT_COMPOSITE4:
 893                        ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 894                        break;
 895                case SAA7134_INPUT_SVIDEO:
 896                case SAA7134_INPUT_SVIDEO0:
 897                case SAA7134_INPUT_SVIDEO1:
 898                        ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 899                        break;
 900                default:
 901                        /*
 902                         * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
 903                         *
 904                         * Please notice that neither SAA7134_INPUT_MUTE or
 905                         * SAA7134_INPUT_RADIO are defined at
 906                         * saa7134_board.input.
 907                         */
 908                        ent->function = MEDIA_ENT_F_CONN_RF;
 909                        break;
 910                }
 911
 912                ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 913                if (ret < 0)
 914                        pr_err("failed to initialize input pad[%d]!\n", i);
 915
 916                ret = media_device_register_entity(dev->media_dev, ent);
 917                if (ret < 0)
 918                        pr_err("failed to register input entity %d!\n", i);
 919        }
 920
 921        /* Create input for Radio RF connector */
 922        if (card_has_radio(dev)) {
 923                struct saa7134_input *in = &saa7134_boards[dev->board].radio;
 924                struct media_entity *ent = &dev->input_ent[i];
 925
 926                ent->name = saa7134_input_name[in->type];
 927                ent->flags = MEDIA_ENT_FL_CONNECTOR;
 928                dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 929                ent->function = MEDIA_ENT_F_CONN_RF;
 930
 931                ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 932                if (ret < 0)
 933                        pr_err("failed to initialize input pad[%d]!\n", i);
 934
 935                ret = media_device_register_entity(dev->media_dev, ent);
 936                if (ret < 0)
 937                        pr_err("failed to register input entity %d!\n", i);
 938        }
 939}
 940#endif
 941
 942static struct video_device *vdev_init(struct saa7134_dev *dev,
 943                                      struct video_device *template,
 944                                      char *type)
 945{
 946        struct video_device *vfd;
 947
 948        vfd = video_device_alloc();
 949        if (NULL == vfd)
 950                return NULL;
 951        *vfd = *template;
 952        vfd->v4l2_dev  = &dev->v4l2_dev;
 953        vfd->release = video_device_release;
 954        snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 955                 dev->name, type, saa7134_boards[dev->board].name);
 956        video_set_drvdata(vfd, dev);
 957        return vfd;
 958}
 959
 960static void saa7134_unregister_video(struct saa7134_dev *dev)
 961{
 962        saa7134_media_release(dev);
 963
 964        if (dev->video_dev) {
 965                if (video_is_registered(dev->video_dev))
 966                        vb2_video_unregister_device(dev->video_dev);
 967                else
 968                        video_device_release(dev->video_dev);
 969                dev->video_dev = NULL;
 970        }
 971        if (dev->vbi_dev) {
 972                if (video_is_registered(dev->vbi_dev))
 973                        vb2_video_unregister_device(dev->vbi_dev);
 974                else
 975                        video_device_release(dev->vbi_dev);
 976                dev->vbi_dev = NULL;
 977        }
 978        if (dev->radio_dev) {
 979                if (video_is_registered(dev->radio_dev))
 980                        vb2_video_unregister_device(dev->radio_dev);
 981                else
 982                        video_device_release(dev->radio_dev);
 983                dev->radio_dev = NULL;
 984        }
 985}
 986
 987static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 988                            struct saa7134_dev *dev)
 989{
 990        int err;
 991
 992        if (NULL != dev->mops)
 993                return;
 994        if (saa7134_boards[dev->board].mpeg != ops->type)
 995                return;
 996        err = ops->init(dev);
 997        if (0 != err)
 998                return;
 999        dev->mops = ops;
1000}
1001
1002static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1003                            struct saa7134_dev *dev)
1004{
1005        if (NULL == dev->mops)
1006                return;
1007        if (dev->mops != ops)
1008                return;
1009        dev->mops->fini(dev);
1010        dev->mops = NULL;
1011}
1012
1013static int saa7134_initdev(struct pci_dev *pci_dev,
1014                           const struct pci_device_id *pci_id)
1015{
1016        struct saa7134_dev *dev;
1017        struct saa7134_mpeg_ops *mops;
1018        int err;
1019
1020        if (saa7134_devcount == SAA7134_MAXBOARDS)
1021                return -ENOMEM;
1022
1023        dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1024        if (NULL == dev)
1025                return -ENOMEM;
1026
1027        dev->nr = saa7134_devcount;
1028        sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1029
1030#ifdef CONFIG_MEDIA_CONTROLLER
1031        dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1032        if (!dev->media_dev) {
1033                err = -ENOMEM;
1034                goto fail0;
1035        }
1036        media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1037        dev->v4l2_dev.mdev = dev->media_dev;
1038#endif
1039
1040        err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1041        if (err)
1042                goto fail0;
1043
1044        /* pci init */
1045        dev->pci = pci_dev;
1046        if (pci_enable_device(pci_dev)) {
1047                err = -EIO;
1048                goto fail1;
1049        }
1050
1051        /* pci quirks */
1052        if (pci_pci_problems) {
1053                if (pci_pci_problems & PCIPCI_TRITON)
1054                        pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1055                if (pci_pci_problems & PCIPCI_NATOMA)
1056                        pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1057                if (pci_pci_problems & PCIPCI_VIAETBF)
1058                        pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1059                if (pci_pci_problems & PCIPCI_VSFX)
1060                        pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1061#ifdef PCIPCI_ALIMAGIK
1062                if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1063                        pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1064                               dev->name);
1065                        latency = 0x0A;
1066                }
1067#endif
1068                if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1069                        pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1070                                dev->name);
1071                        if (!saa7134_no_overlay) {
1072                                pr_info("%s: quirk: overlay mode will be disabled.\n",
1073                                                dev->name);
1074                                saa7134_no_overlay = 1;
1075                        } else {
1076                                pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1077                                                dev->name);
1078                        }
1079                }
1080        }
1081        if (UNSET != latency) {
1082                pr_info("%s: setting pci latency timer to %d\n",
1083                       dev->name,latency);
1084                pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1085        }
1086
1087        /* print pci info */
1088        dev->pci_rev = pci_dev->revision;
1089        pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1090        pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1091                dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1092                dev->pci_lat,
1093                (unsigned long long)pci_resource_start(pci_dev, 0));
1094        pci_set_master(pci_dev);
1095        err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1096        if (err) {
1097                pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1098                goto fail1;
1099        }
1100
1101        /* board config */
1102        dev->board = pci_id->driver_data;
1103        if ((unsigned)card[dev->nr] < saa7134_bcount)
1104                dev->board = card[dev->nr];
1105        if (SAA7134_BOARD_UNKNOWN == dev->board)
1106                must_configure_manually(0);
1107        else if (SAA7134_BOARD_NOAUTO == dev->board) {
1108                must_configure_manually(1);
1109                dev->board = SAA7134_BOARD_UNKNOWN;
1110        }
1111        dev->autodetected = card[dev->nr] != dev->board;
1112        dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1113        dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1114        dev->radio_type = saa7134_boards[dev->board].radio_type;
1115        dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1116        dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1117        if (UNSET != tuner[dev->nr])
1118                dev->tuner_type = tuner[dev->nr];
1119        pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1120                dev->name,pci_dev->subsystem_vendor,
1121                pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1122                dev->board, dev->autodetected ?
1123                "autodetected" : "insmod option");
1124
1125        /* get mmio */
1126        if (!request_mem_region(pci_resource_start(pci_dev,0),
1127                                pci_resource_len(pci_dev,0),
1128                                dev->name)) {
1129                err = -EBUSY;
1130                pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1131                       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1132                goto fail1;
1133        }
1134        dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1135                             pci_resource_len(pci_dev, 0));
1136        dev->bmmio = (__u8 __iomem *)dev->lmmio;
1137        if (NULL == dev->lmmio) {
1138                err = -EIO;
1139                pr_err("%s: can't ioremap() MMIO memory\n",
1140                       dev->name);
1141                goto fail2;
1142        }
1143
1144        /* initialize hardware #1 */
1145        saa7134_board_init1(dev);
1146        saa7134_hwinit1(dev);
1147
1148        /* get irq */
1149        err = request_irq(pci_dev->irq, saa7134_irq,
1150                          IRQF_SHARED, dev->name, dev);
1151        if (err < 0) {
1152                pr_err("%s: can't get IRQ %d\n",
1153                       dev->name,pci_dev->irq);
1154                goto fail3;
1155        }
1156
1157        /* wait a bit, register i2c bus */
1158        msleep(100);
1159        saa7134_i2c_register(dev);
1160        saa7134_board_init2(dev);
1161
1162        saa7134_hwinit2(dev);
1163
1164        /* load i2c helpers */
1165        if (card_is_empress(dev)) {
1166                dev->empress_sd =
1167                        v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1168                                "saa6752hs",
1169                                saa7134_boards[dev->board].empress_addr, NULL);
1170
1171                if (dev->empress_sd)
1172                        dev->empress_sd->grp_id = GRP_EMPRESS;
1173        }
1174
1175        if (saa7134_boards[dev->board].rds_addr) {
1176                struct v4l2_subdev *sd;
1177
1178                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1179                                &dev->i2c_adap, "saa6588",
1180                                0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1181                if (sd) {
1182                        pr_info("%s: found RDS decoder\n", dev->name);
1183                        dev->has_rds = 1;
1184                }
1185        }
1186
1187        mutex_lock(&saa7134_devlist_lock);
1188        list_for_each_entry(mops, &mops_list, next)
1189                mpeg_ops_attach(mops, dev);
1190        list_add_tail(&dev->devlist, &saa7134_devlist);
1191        mutex_unlock(&saa7134_devlist_lock);
1192
1193        /* check for signal */
1194        saa7134_irq_video_signalchange(dev);
1195
1196        if (TUNER_ABSENT != dev->tuner_type)
1197                saa_call_all(dev, core, s_power, 0);
1198
1199        /* register v4l devices */
1200        if (saa7134_no_overlay > 0)
1201                pr_info("%s: Overlay support disabled.\n", dev->name);
1202
1203        dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1204        dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1205        dev->video_dev->lock = &dev->lock;
1206        dev->video_dev->queue = &dev->video_vbq;
1207        dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1208                                      V4L2_CAP_VIDEO_CAPTURE;
1209        if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1210                dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1211
1212        if (saa7134_no_overlay <= 0)
1213                dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1214
1215        err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1216                                    video_nr[dev->nr]);
1217        if (err < 0) {
1218                pr_info("%s: can't register video device\n",
1219                       dev->name);
1220                goto fail4;
1221        }
1222        pr_info("%s: registered device %s [v4l2]\n",
1223               dev->name, video_device_node_name(dev->video_dev));
1224
1225        dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1226        dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1227        dev->vbi_dev->lock = &dev->lock;
1228        dev->vbi_dev->queue = &dev->vbi_vbq;
1229        dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1230                                    V4L2_CAP_VBI_CAPTURE;
1231        if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1232                dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1233
1234        err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1235                                    vbi_nr[dev->nr]);
1236        if (err < 0)
1237                goto fail4;
1238        pr_info("%s: registered device %s\n",
1239               dev->name, video_device_node_name(dev->vbi_dev));
1240
1241        if (card_has_radio(dev)) {
1242                dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1243                dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1244                dev->radio_dev->lock = &dev->lock;
1245                dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1246                if (dev->has_rds)
1247                        dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1248                err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1249                                            radio_nr[dev->nr]);
1250                if (err < 0)
1251                        goto fail4;
1252                pr_info("%s: registered device %s\n",
1253                       dev->name, video_device_node_name(dev->radio_dev));
1254        }
1255
1256#ifdef CONFIG_MEDIA_CONTROLLER
1257        saa7134_create_entities(dev);
1258
1259        err = v4l2_mc_create_media_graph(dev->media_dev);
1260        if (err) {
1261                pr_err("failed to create media graph\n");
1262                goto fail4;
1263        }
1264#endif
1265        /* everything worked */
1266        saa7134_devcount++;
1267
1268        if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1269                saa7134_dmasound_init(dev);
1270
1271        request_submodules(dev);
1272
1273        /*
1274         * Do it at the end, to reduce dynamic configuration changes during
1275         * the device init. Yet, as request_modules() can be async, the
1276         * topology will likely change after load the saa7134 subdrivers.
1277         */
1278#ifdef CONFIG_MEDIA_CONTROLLER
1279        err = media_device_register(dev->media_dev);
1280        if (err)
1281                goto fail4;
1282#endif
1283
1284        return 0;
1285
1286 fail4:
1287        saa7134_unregister_video(dev);
1288        saa7134_i2c_unregister(dev);
1289        free_irq(pci_dev->irq, dev);
1290 fail3:
1291        saa7134_hwfini(dev);
1292        iounmap(dev->lmmio);
1293 fail2:
1294        release_mem_region(pci_resource_start(pci_dev,0),
1295                           pci_resource_len(pci_dev,0));
1296 fail1:
1297        v4l2_device_unregister(&dev->v4l2_dev);
1298 fail0:
1299#ifdef CONFIG_MEDIA_CONTROLLER
1300        kfree(dev->media_dev);
1301#endif
1302        kfree(dev);
1303        return err;
1304}
1305
1306static void saa7134_finidev(struct pci_dev *pci_dev)
1307{
1308        struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1309        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1310        struct saa7134_mpeg_ops *mops;
1311
1312        flush_request_submodules(dev);
1313
1314        /* Release DMA sound modules if present */
1315        if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1316                saa7134_dmasound_exit(dev);
1317        }
1318
1319        /* debugging ... */
1320        if (irq_debug) {
1321                u32 report = saa_readl(SAA7134_IRQ_REPORT);
1322                u32 status = saa_readl(SAA7134_IRQ_STATUS);
1323                print_irqstatus(dev,42,report,status);
1324        }
1325
1326        /* disable peripheral devices */
1327        saa_writeb(SAA7134_SPECIAL_MODE,0);
1328
1329        /* shutdown hardware */
1330        saa_writel(SAA7134_IRQ1,0);
1331        saa_writel(SAA7134_IRQ2,0);
1332        saa_writel(SAA7134_MAIN_CTRL,0);
1333
1334        /* shutdown subsystems */
1335        saa7134_hwfini(dev);
1336
1337        /* unregister */
1338        mutex_lock(&saa7134_devlist_lock);
1339        list_del(&dev->devlist);
1340        list_for_each_entry(mops, &mops_list, next)
1341                mpeg_ops_detach(mops, dev);
1342        mutex_unlock(&saa7134_devlist_lock);
1343        saa7134_devcount--;
1344
1345        saa7134_i2c_unregister(dev);
1346        saa7134_unregister_video(dev);
1347
1348
1349        /* the DMA sound modules should be unloaded before reaching
1350           this, but just in case they are still present... */
1351        if (dev->dmasound.priv_data != NULL) {
1352                free_irq(pci_dev->irq, &dev->dmasound);
1353                dev->dmasound.priv_data = NULL;
1354        }
1355
1356
1357        /* release resources */
1358        free_irq(pci_dev->irq, dev);
1359        iounmap(dev->lmmio);
1360        release_mem_region(pci_resource_start(pci_dev,0),
1361                           pci_resource_len(pci_dev,0));
1362
1363        v4l2_device_unregister(&dev->v4l2_dev);
1364
1365        saa7134_unregister_media_device(dev);
1366
1367        /* free memory */
1368        kfree(dev);
1369}
1370
1371/* resends a current buffer in queue after resume */
1372static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1373                                                 struct saa7134_dmaqueue *q)
1374{
1375        struct saa7134_buf *buf, *next;
1376
1377        assert_spin_locked(&dev->slock);
1378
1379        buf  = q->curr;
1380        next = buf;
1381        core_dbg("buffer_requeue\n");
1382
1383        if (!buf)
1384                return 0;
1385
1386        core_dbg("buffer_requeue : resending active buffer\n");
1387
1388        if (!list_empty(&q->queue))
1389                next = list_entry(q->queue.next, struct saa7134_buf,
1390                                          entry);
1391        buf->activate(dev, buf, next);
1392
1393        return 0;
1394}
1395
1396static int __maybe_unused saa7134_suspend(struct device *dev_d)
1397{
1398        struct pci_dev *pci_dev = to_pci_dev(dev_d);
1399        struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1400        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1401
1402        /* disable overlay - apps should enable it explicitly on resume*/
1403        dev->ovenable = 0;
1404
1405        /* Disable interrupts, DMA, and rest of the chip*/
1406        saa_writel(SAA7134_IRQ1, 0);
1407        saa_writel(SAA7134_IRQ2, 0);
1408        saa_writel(SAA7134_MAIN_CTRL, 0);
1409
1410        dev->insuspend = 1;
1411        synchronize_irq(pci_dev->irq);
1412
1413        /* ACK interrupts once more, just in case,
1414                since the IRQ handler won't ack them anymore*/
1415
1416        saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1417
1418        /* Disable timeout timers - if we have active buffers, we will
1419           fill them on resume*/
1420
1421        del_timer(&dev->video_q.timeout);
1422        del_timer(&dev->vbi_q.timeout);
1423        del_timer(&dev->ts_q.timeout);
1424
1425        if (dev->remote && dev->remote->dev->users)
1426                saa7134_ir_close(dev->remote->dev);
1427
1428        return 0;
1429}
1430
1431static int __maybe_unused saa7134_resume(struct device *dev_d)
1432{
1433        struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1434        struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1435        unsigned long flags;
1436
1437        /* Do things that are done in saa7134_initdev ,
1438                except of initializing memory structures.*/
1439
1440        saa7134_board_init1(dev);
1441
1442        /* saa7134_hwinit1 */
1443        if (saa7134_boards[dev->board].video_out)
1444                saa7134_videoport_init(dev);
1445        if (card_has_mpeg(dev))
1446                saa7134_ts_init_hw(dev);
1447        if (dev->remote && dev->remote->dev->users)
1448                saa7134_ir_open(dev->remote->dev);
1449        saa7134_hw_enable1(dev);
1450
1451        msleep(100);
1452
1453        saa7134_board_init2(dev);
1454
1455        /*saa7134_hwinit2*/
1456        saa7134_set_tvnorm_hw(dev);
1457        saa7134_tvaudio_setmute(dev);
1458        saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1459        saa7134_tvaudio_init(dev);
1460        saa7134_enable_i2s(dev);
1461        saa7134_hw_enable2(dev);
1462
1463        saa7134_irq_video_signalchange(dev);
1464
1465        /*resume unfinished buffer(s)*/
1466        spin_lock_irqsave(&dev->slock, flags);
1467        saa7134_buffer_requeue(dev, &dev->video_q);
1468        saa7134_buffer_requeue(dev, &dev->vbi_q);
1469        saa7134_buffer_requeue(dev, &dev->ts_q);
1470
1471        /* FIXME: Disable DMA audio sound - temporary till proper support
1472                  is implemented*/
1473
1474        dev->dmasound.dma_running = 0;
1475
1476        /* start DMA now*/
1477        dev->insuspend = 0;
1478        smp_wmb();
1479        saa7134_set_dmabits(dev);
1480        spin_unlock_irqrestore(&dev->slock, flags);
1481
1482        return 0;
1483}
1484
1485/* ----------------------------------------------------------- */
1486
1487int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1488{
1489        struct saa7134_dev *dev;
1490
1491        mutex_lock(&saa7134_devlist_lock);
1492        list_for_each_entry(dev, &saa7134_devlist, devlist)
1493                mpeg_ops_attach(ops, dev);
1494        list_add_tail(&ops->next,&mops_list);
1495        mutex_unlock(&saa7134_devlist_lock);
1496        return 0;
1497}
1498
1499void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1500{
1501        struct saa7134_dev *dev;
1502
1503        mutex_lock(&saa7134_devlist_lock);
1504        list_del(&ops->next);
1505        list_for_each_entry(dev, &saa7134_devlist, devlist)
1506                mpeg_ops_detach(ops, dev);
1507        mutex_unlock(&saa7134_devlist_lock);
1508}
1509
1510EXPORT_SYMBOL(saa7134_ts_register);
1511EXPORT_SYMBOL(saa7134_ts_unregister);
1512
1513/* ----------------------------------------------------------- */
1514
1515static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1516
1517static struct pci_driver saa7134_pci_driver = {
1518        .name     = "saa7134",
1519        .id_table = saa7134_pci_tbl,
1520        .probe    = saa7134_initdev,
1521        .remove   = saa7134_finidev,
1522        .driver.pm = &saa7134_pm_ops,
1523};
1524
1525static int __init saa7134_init(void)
1526{
1527        INIT_LIST_HEAD(&saa7134_devlist);
1528        pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1529               SAA7134_VERSION);
1530        return pci_register_driver(&saa7134_pci_driver);
1531}
1532
1533static void __exit saa7134_fini(void)
1534{
1535        pci_unregister_driver(&saa7134_pci_driver);
1536}
1537
1538module_init(saa7134_init);
1539module_exit(saa7134_fini);
1540
1541/* ----------------------------------------------------------- */
1542
1543EXPORT_SYMBOL(saa7134_set_gpio);
1544EXPORT_SYMBOL(saa7134_boards);
1545
1546/* ----------------- for the DMA sound modules --------------- */
1547
1548EXPORT_SYMBOL(saa7134_dmasound_init);
1549EXPORT_SYMBOL(saa7134_dmasound_exit);
1550EXPORT_SYMBOL(saa7134_pgtable_free);
1551EXPORT_SYMBOL(saa7134_pgtable_build);
1552EXPORT_SYMBOL(saa7134_pgtable_alloc);
1553EXPORT_SYMBOL(saa7134_set_dmabits);
1554