saa7134-core.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *
   4 * device driver for philips saa7134 based TV cards
   5 * driver core
   6 *
   7 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8 */
   9
  10#include "saa7134.h"
  11#include "saa7134-reg.h"
  12
  13#include <linux/init.h>
  14#include <linux/list.h>
  15#include <linux/module.h>
  16#include <linux/kernel.h>
  17#include <linux/slab.h>
  18#include <linux/kmod.h>
  19#include <linux/sound.h>
  20#include <linux/interrupt.h>
  21#include <linux/delay.h>
  22#include <linux/mutex.h>
  23#include <linux/dma-mapping.h>
  24#include <linux/pm.h>
  25
  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
  54bool saa7134_userptr;
  55module_param(saa7134_userptr, bool, 0644);
  56MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
  57
  58static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  59static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  60static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  61static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  62static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
  63
  64
  65module_param_array(video_nr, int, NULL, 0444);
  66module_param_array(vbi_nr,   int, NULL, 0444);
  67module_param_array(radio_nr, int, NULL, 0444);
  68module_param_array(tuner,    int, NULL, 0444);
  69module_param_array(card,     int, NULL, 0444);
  70
  71MODULE_PARM_DESC(video_nr, "video device number");
  72MODULE_PARM_DESC(vbi_nr,   "vbi device number");
  73MODULE_PARM_DESC(radio_nr, "radio device number");
  74MODULE_PARM_DESC(tuner,    "tuner type");
  75MODULE_PARM_DESC(card,     "card type");
  76
  77DEFINE_MUTEX(saa7134_devlist_lock);
  78EXPORT_SYMBOL(saa7134_devlist_lock);
  79LIST_HEAD(saa7134_devlist);
  80EXPORT_SYMBOL(saa7134_devlist);
  81static LIST_HEAD(mops_list);
  82static unsigned int saa7134_devcount;
  83
  84int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
  85int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
  86
  87#define core_dbg(fmt, arg...) do { \
  88	if (core_debug) \
  89		printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
  90	} while (0)
  91
  92#define irq_dbg(level, fmt, arg...)  do {\
  93	if (irq_debug > level) \
  94		printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
  95	} while (0)
  96
  97void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
  98{
  99	unsigned long mode,status;
 100
 101	if (!gpio_tracking)
 102		return;
 103	/* rising SAA7134_GPIO_GPRESCAN reads the status */
 104	saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
 105	saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
 106	mode   = saa_readl(SAA7134_GPIO_GPMODE0   >> 2) & 0xfffffff;
 107	status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
 108	core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
 109	       dev->name, mode, (~mode) & status, mode & status, msg);
 110}
 111
 112void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
 113{
 114	u32 index, bitval;
 115
 116	index = 1 << bit_no;
 117	switch (value) {
 118	case 0: /* static value */
 119	case 1:
 120		core_dbg("setting GPIO%d to static %d\n", bit_no, value);
 121		/* turn sync mode off if necessary */
 122		if (index & 0x00c00000)
 123			saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
 124		if (value)
 125			bitval = index;
 126		else
 127			bitval = 0;
 128		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
 129		saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
 130		break;
 131	case 3:	/* tristate */
 132		core_dbg("setting GPIO%d to tristate\n", bit_no);
 133		saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
 134		break;
 135	}
 136}
 137
 138/* ------------------------------------------------------------------ */
 139
 140
 141/* ----------------------------------------------------------- */
 142/* delayed request_module                                      */
 143
 144#if defined(CONFIG_MODULES) && defined(MODULE)
 145
 146static void request_module_async(struct work_struct *work){
 147	struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
 148	if (card_is_empress(dev))
 149		request_module("saa7134-empress");
 150	if (card_is_dvb(dev))
 151		request_module("saa7134-dvb");
 152	if (card_is_go7007(dev))
 153		request_module("saa7134-go7007");
 154	if (alsa) {
 155		if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
 156			request_module("saa7134-alsa");
 157	}
 158}
 159
 160static void request_submodules(struct saa7134_dev *dev)
 161{
 162	INIT_WORK(&dev->request_module_wk, request_module_async);
 163	schedule_work(&dev->request_module_wk);
 164}
 165
 166static void flush_request_submodules(struct saa7134_dev *dev)
 167{
 168	flush_work(&dev->request_module_wk);
 169}
 170
 171#else
 172#define request_submodules(dev)
 173#define flush_request_submodules(dev)
 174#endif /* CONFIG_MODULES */
 175
 176/* ------------------------------------------------------------------ */
 177
 178/* nr of (saa7134-)pages for the given buffer size */
 179static int saa7134_buffer_pages(int size)
 180{
 181	size  = PAGE_ALIGN(size);
 182	size += PAGE_SIZE; /* for non-page-aligned buffers */
 183	size /= 4096;
 184	return size;
 185}
 186
 187/* calc max # of buffers from size (must not exceed the 4MB virtual
 188 * address space per DMA channel) */
 189int saa7134_buffer_count(unsigned int size, unsigned int count)
 190{
 191	unsigned int maxcount;
 192
 193	maxcount = 1024 / saa7134_buffer_pages(size);
 194	if (count > maxcount)
 195		count = maxcount;
 196	return count;
 197}
 198
 199int saa7134_buffer_startpage(struct saa7134_buf *buf)
 200{
 201	return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
 202			* buf->vb2.vb2_buf.index;
 203}
 204
 205unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
 206{
 207	unsigned long base;
 208	struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
 209
 210	base  = saa7134_buffer_startpage(buf) * 4096;
 211	base += dma->sgl[0].offset;
 212	return base;
 213}
 214
 215/* ------------------------------------------------------------------ */
 216
 217int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
 218{
 219	__le32       *cpu;
 220	dma_addr_t   dma_addr = 0;
 221
 222	cpu = dma_alloc_coherent(&pci->dev, SAA7134_PGTABLE_SIZE, &dma_addr,
 223				 GFP_KERNEL);
 224	if (NULL == cpu)
 225		return -ENOMEM;
 226	pt->size = SAA7134_PGTABLE_SIZE;
 227	pt->cpu  = cpu;
 228	pt->dma  = dma_addr;
 229	return 0;
 230}
 231
 232int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
 233			  struct scatterlist *list, unsigned int length,
 234			  unsigned int startpage)
 235{
 236	__le32        *ptr;
 237	unsigned int  i, p;
 238
 239	BUG_ON(NULL == pt || NULL == pt->cpu);
 240
 241	ptr = pt->cpu + startpage;
 242	for (i = 0; i < length; i++, list = sg_next(list)) {
 243		for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++)
 244			*ptr = cpu_to_le32(sg_dma_address(list) +
 245						list->offset + p * 4096);
 246	}
 247	return 0;
 248}
 249
 250void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
 251{
 252	if (NULL == pt->cpu)
 253		return;
 254	dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma);
 255	pt->cpu = NULL;
 256}
 257
 258/* ------------------------------------------------------------------ */
 259
 260int saa7134_buffer_queue(struct saa7134_dev *dev,
 261			 struct saa7134_dmaqueue *q,
 262			 struct saa7134_buf *buf)
 263{
 264	struct saa7134_buf *next = NULL;
 265	unsigned long flags;
 266
 267	spin_lock_irqsave(&dev->slock, flags);
 268	core_dbg("buffer_queue %p\n", buf);
 269	if (NULL == q->curr) {
 270		if (!q->need_two) {
 271			q->curr = buf;
 272			buf->activate(dev, buf, NULL);
 273		} else if (list_empty(&q->queue)) {
 274			list_add_tail(&buf->entry, &q->queue);
 275		} else {
 276			next = list_entry(q->queue.next, struct saa7134_buf,
 277					  entry);
 278			q->curr = buf;
 279			buf->activate(dev, buf, next);
 280		}
 281	} else {
 282		list_add_tail(&buf->entry, &q->queue);
 283	}
 284	spin_unlock_irqrestore(&dev->slock, flags);
 285	return 0;
 286}
 287
 288void saa7134_buffer_finish(struct saa7134_dev *dev,
 289			   struct saa7134_dmaqueue *q,
 290			   unsigned int state)
 291{
 292	core_dbg("buffer_finish %p\n", q->curr);
 293
 294	/* finish current buffer */
 295	q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
 296	q->curr->vb2.sequence = q->seq_nr++;
 297	vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
 298	q->curr = NULL;
 299}
 300
 301void saa7134_buffer_next(struct saa7134_dev *dev,
 302			 struct saa7134_dmaqueue *q)
 303{
 304	struct saa7134_buf *buf,*next = NULL;
 305
 306	assert_spin_locked(&dev->slock);
 307	BUG_ON(NULL != q->curr);
 308
 309	if (!list_empty(&q->queue)) {
 310		/* activate next one from queue */
 311		buf = list_entry(q->queue.next, struct saa7134_buf, entry);
 312		core_dbg("buffer_next %p [prev=%p/next=%p]\n",
 313			buf, q->queue.prev, q->queue.next);
 314		list_del(&buf->entry);
 315		if (!list_empty(&q->queue))
 316			next = list_entry(q->queue.next, struct saa7134_buf, entry);
 317		q->curr = buf;
 318		buf->activate(dev, buf, next);
 319		core_dbg("buffer_next #2 prev=%p/next=%p\n",
 320			q->queue.prev, q->queue.next);
 321	} else {
 322		/* nothing to do -- just stop DMA */
 323		core_dbg("buffer_next %p\n", NULL);
 324		saa7134_set_dmabits(dev);
 325		timer_delete(&q->timeout);
 326	}
 327}
 328
 329void saa7134_buffer_timeout(struct timer_list *t)
 330{
 331	struct saa7134_dmaqueue *q = timer_container_of(q, t, timeout);
 332	struct saa7134_dev *dev = q->dev;
 333	unsigned long flags;
 334
 335	spin_lock_irqsave(&dev->slock, flags);
 336
 337	/* try to reset the hardware (SWRST) */
 338	saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 339	saa_writeb(SAA7134_REGION_ENABLE, 0x80);
 340	saa_writeb(SAA7134_REGION_ENABLE, 0x00);
 341
 342	/* flag current buffer as failed,
 343	   try to start over with the next one. */
 344	if (q->curr) {
 345		core_dbg("timeout on %p\n", q->curr);
 346		saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
 347	}
 348	saa7134_buffer_next(dev, q);
 349	spin_unlock_irqrestore(&dev->slock, flags);
 350}
 351
 352void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
 353{
 354	unsigned long flags;
 355	struct list_head *pos, *n;
 356	struct saa7134_buf *tmp;
 357
 358	spin_lock_irqsave(&dev->slock, flags);
 359	list_for_each_safe(pos, n, &q->queue) {
 360		tmp = list_entry(pos, struct saa7134_buf, entry);
 361		vb2_buffer_done(&tmp->vb2.vb2_buf,
 362				VB2_BUF_STATE_ERROR);
 363		list_del(pos);
 364		tmp = NULL;
 365	}
 366	spin_unlock_irqrestore(&dev->slock, flags);
 367	saa7134_buffer_timeout(&q->timeout); /* also calls timer_delete(&q->timeout) */
 368}
 369EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
 370
 371/* ------------------------------------------------------------------ */
 372
 373int saa7134_set_dmabits(struct saa7134_dev *dev)
 374{
 375	u32 split, task=0, ctrl=0, irq=0;
 376	enum v4l2_field cap = V4L2_FIELD_ANY;
 377	enum v4l2_field ov  = V4L2_FIELD_ANY;
 378
 379	assert_spin_locked(&dev->slock);
 380
 381	if (dev->insuspend)
 382		return 0;
 383
 384	/* video capture -- dma 0 + video task A */
 385	if (dev->video_q.curr) {
 386		task |= 0x01;
 387		ctrl |= SAA7134_MAIN_CTRL_TE0;
 388		irq  |= SAA7134_IRQ1_INTE_RA0_1 |
 389			SAA7134_IRQ1_INTE_RA0_0;
 390		cap = dev->field;
 391	}
 392
 393	/* video capture -- dma 1+2 (planar modes) */
 394	if (dev->video_q.curr && dev->fmt->planar) {
 395		ctrl |= SAA7134_MAIN_CTRL_TE4 |
 396			SAA7134_MAIN_CTRL_TE5;
 397	}
 398
 399	/* vbi capture -- dma 0 + vbi task A+B */
 400	if (dev->vbi_q.curr) {
 401		task |= 0x22;
 402		ctrl |= SAA7134_MAIN_CTRL_TE2 |
 403			SAA7134_MAIN_CTRL_TE3;
 404		irq  |= SAA7134_IRQ1_INTE_RA0_7 |
 405			SAA7134_IRQ1_INTE_RA0_6 |
 406			SAA7134_IRQ1_INTE_RA0_5 |
 407			SAA7134_IRQ1_INTE_RA0_4;
 408	}
 409
 410	/* audio capture -- dma 3 */
 411	if (dev->dmasound.dma_running) {
 412		ctrl |= SAA7134_MAIN_CTRL_TE6;
 413		irq  |= SAA7134_IRQ1_INTE_RA3_1 |
 414			SAA7134_IRQ1_INTE_RA3_0;
 415	}
 416
 417	/* TS capture -- dma 5 */
 418	if (dev->ts_q.curr) {
 419		ctrl |= SAA7134_MAIN_CTRL_TE5;
 420		irq  |= SAA7134_IRQ1_INTE_RA2_1 |
 421			SAA7134_IRQ1_INTE_RA2_0;
 422	}
 423
 424	/* set task conditions + field handling */
 425	if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
 426		/* default config -- use full frames */
 427		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 428		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 429		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
 430		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
 431		split = 0;
 432	} else {
 433		/* split fields between tasks */
 434		if (V4L2_FIELD_TOP == cap) {
 435			/* odd A, even B, repeat */
 436			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
 437			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
 438		} else {
 439			/* odd B, even A, repeat */
 440			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
 441			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
 442		}
 443		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
 444		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
 445		split = 1;
 446	}
 447
 448	/* irqs */
 449	saa_writeb(SAA7134_REGION_ENABLE, task);
 450	saa_writel(SAA7134_IRQ1,          irq);
 451	saa_andorl(SAA7134_MAIN_CTRL,
 452		   SAA7134_MAIN_CTRL_TE0 |
 453		   SAA7134_MAIN_CTRL_TE1 |
 454		   SAA7134_MAIN_CTRL_TE2 |
 455		   SAA7134_MAIN_CTRL_TE3 |
 456		   SAA7134_MAIN_CTRL_TE4 |
 457		   SAA7134_MAIN_CTRL_TE5 |
 458		   SAA7134_MAIN_CTRL_TE6,
 459		   ctrl);
 460	core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
 461		task, ctrl, irq, split ? "no" : "yes");
 462
 463	return 0;
 464}
 465
 466/* ------------------------------------------------------------------ */
 467/* IRQ handler + helpers                                              */
 468
 469static char *irqbits[] = {
 470	"DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
 471	"AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
 472	"TRIG_ERR", "CONF_ERR", "LOAD_ERR",
 473	"GPIO16", "GPIO18", "GPIO22", "GPIO23"
 474};
 475#define IRQBITS ARRAY_SIZE(irqbits)
 476
 477static void print_irqstatus(struct saa7134_dev *dev, int loop,
 478			    unsigned long report, unsigned long status)
 479{
 480	unsigned int i;
 481
 482	irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
 483		loop, jiffies, report, status);
 484	for (i = 0; i < IRQBITS; i++) {
 485		if (!(report & (1 << i)))
 486			continue;
 487		pr_cont(" %s", irqbits[i]);
 488	}
 489	if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
 490		pr_cont(" | RA0=%s,%s,%s,%ld",
 491			(status & 0x40) ? "vbi"  : "video",
 492			(status & 0x20) ? "b"    : "a",
 493			(status & 0x10) ? "odd"  : "even",
 494			(status & 0x0f));
 495	}
 496	pr_cont("\n");
 497}
 498
 499static irqreturn_t saa7134_irq(int irq, void *dev_id)
 500{
 501	struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
 502	unsigned long report,status;
 503	int loop, handled = 0;
 504
 505	if (dev->insuspend)
 506		goto out;
 507
 508	for (loop = 0; loop < 10; loop++) {
 509		report = saa_readl(SAA7134_IRQ_REPORT);
 510		status = saa_readl(SAA7134_IRQ_STATUS);
 511
 512		/* If dmasound support is active and we get a sound report,
 513		 * mask out the report and let the saa7134-alsa module deal
 514		 * with it */
 515		if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
 516			(dev->dmasound.priv_data != NULL) )
 517		{
 518			irq_dbg(2, "preserving DMA sound interrupt\n");
 519			report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
 520		}
 521
 522		if (0 == report) {
 523			irq_dbg(2, "no (more) work\n");
 524			goto out;
 525		}
 526
 527		handled = 1;
 528		saa_writel(SAA7134_IRQ_REPORT,report);
 529		if (irq_debug)
 530			print_irqstatus(dev,loop,report,status);
 531
 532
 533		if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
 534			(report & SAA7134_IRQ_REPORT_INTL))
 535				saa7134_irq_video_signalchange(dev);
 536
 537
 538		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 539		    (status & 0x60) == 0)
 540			saa7134_irq_video_done(dev,status);
 541
 542		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
 543		    (status & 0x40) == 0x40)
 544			saa7134_irq_vbi_done(dev,status);
 545
 546		if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
 547		    card_has_mpeg(dev)) {
 548			if (dev->mops->irq_ts_done != NULL)
 549				dev->mops->irq_ts_done(dev, status);
 550			else
 551				saa7134_irq_ts_done(dev, status);
 552		}
 553
 554		if (report & SAA7134_IRQ_REPORT_GPIO16) {
 555			switch (dev->has_remote) {
 556				case SAA7134_REMOTE_GPIO:
 557					if (!dev->remote)
 558						break;
 559					if  (dev->remote->mask_keydown & 0x10000) {
 560						saa7134_input_irq(dev);
 561					}
 562					break;
 563
 564				case SAA7134_REMOTE_I2C:
 565					break;			/* FIXME: invoke I2C get_key() */
 566
 567				default:			/* GPIO16 not used by IR remote */
 568					break;
 569			}
 570		}
 571
 572		if (report & SAA7134_IRQ_REPORT_GPIO18) {
 573			switch (dev->has_remote) {
 574				case SAA7134_REMOTE_GPIO:
 575					if (!dev->remote)
 576						break;
 577					if ((dev->remote->mask_keydown & 0x40000) ||
 578					    (dev->remote->mask_keyup & 0x40000)) {
 579						saa7134_input_irq(dev);
 580					}
 581					break;
 582
 583				case SAA7134_REMOTE_I2C:
 584					break;			/* FIXME: invoke I2C get_key() */
 585
 586				default:			/* GPIO18 not used by IR remote */
 587					break;
 588			}
 589		}
 590	}
 591
 592	if (10 == loop) {
 593		print_irqstatus(dev,loop,report,status);
 594		if (report & SAA7134_IRQ_REPORT_PE) {
 595			/* disable all parity error */
 596			pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
 597				dev->name);
 598			saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
 599		} else if (report & SAA7134_IRQ_REPORT_GPIO16) {
 600			/* disable gpio16 IRQ */
 601			pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
 602				dev->name);
 603			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
 604			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
 605		} else if (report & SAA7134_IRQ_REPORT_GPIO18) {
 606			/* disable gpio18 IRQs */
 607			pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
 608				dev->name);
 609			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
 610			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
 611		} else {
 612			/* disable all irqs */
 613			pr_warn("%s/irq: looping -- clearing all enable bits\n",
 614				dev->name);
 615			saa_writel(SAA7134_IRQ1,0);
 616			saa_writel(SAA7134_IRQ2,0);
 617		}
 618	}
 619
 620 out:
 621	return IRQ_RETVAL(handled);
 622}
 623
 624/* ------------------------------------------------------------------ */
 625
 626/* early init (no i2c, no irq) */
 627
 628static int saa7134_hw_enable1(struct saa7134_dev *dev)
 629{
 630	/* RAM FIFO config */
 631	saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
 632	saa_writel(SAA7134_THRESHOULD, 0x02020202);
 633
 634	/* enable audio + video processing */
 635	saa_writel(SAA7134_MAIN_CTRL,
 636			SAA7134_MAIN_CTRL_VPLLE |
 637			SAA7134_MAIN_CTRL_APLLE |
 638			SAA7134_MAIN_CTRL_EXOSC |
 639			SAA7134_MAIN_CTRL_EVFE1 |
 640			SAA7134_MAIN_CTRL_EVFE2 |
 641			SAA7134_MAIN_CTRL_ESFE  |
 642			SAA7134_MAIN_CTRL_EBDAC);
 643
 644	/*
 645	* Initialize OSS _after_ enabling audio clock PLL and audio processing.
 646	* OSS initialization writes to registers via the audio DSP; these
 647	* writes will fail unless the audio clock has been started.  At worst,
 648	* audio will not work.
 649	*/
 650
 651	/* enable peripheral devices */
 652	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
 653
 654	/* set vertical line numbering start (vbi needs this) */
 655	saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
 656
 657	return 0;
 658}
 659
 660static int saa7134_hwinit1(struct saa7134_dev *dev)
 661{
 662	core_dbg("hwinit1\n");
 663
 664	saa_writel(SAA7134_IRQ1, 0);
 665	saa_writel(SAA7134_IRQ2, 0);
 666
 667	/* Clear any stale IRQ reports */
 668	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
 669
 670	mutex_init(&dev->lock);
 671	spin_lock_init(&dev->slock);
 672
 673	saa7134_track_gpio(dev,"pre-init");
 674	saa7134_video_init1(dev);
 675	saa7134_vbi_init1(dev);
 676	if (card_has_mpeg(dev))
 677		saa7134_ts_init1(dev);
 678	saa7134_input_init1(dev);
 679
 680	saa7134_hw_enable1(dev);
 681
 682	return 0;
 683}
 684
 685/* late init (with i2c + irq) */
 686static int saa7134_hw_enable2(struct saa7134_dev *dev)
 687{
 688
 689	unsigned int irq2_mask;
 690
 691	/* enable IRQ's */
 692	irq2_mask =
 693		SAA7134_IRQ2_INTE_DEC3    |
 694		SAA7134_IRQ2_INTE_DEC2    |
 695		SAA7134_IRQ2_INTE_DEC1    |
 696		SAA7134_IRQ2_INTE_DEC0    |
 697		SAA7134_IRQ2_INTE_PE      |
 698		SAA7134_IRQ2_INTE_AR;
 699
 700	if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 701		if (dev->remote->mask_keydown & 0x10000)
 702			irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
 703		else {		/* Allow enabling both IRQ edge triggers */
 704			if (dev->remote->mask_keydown & 0x40000)
 705				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
 706			if (dev->remote->mask_keyup & 0x40000)
 707				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
 708		}
 709	}
 710
 711	if (dev->has_remote == SAA7134_REMOTE_I2C) {
 712		request_module("ir-kbd-i2c");
 713	}
 714
 715	saa_writel(SAA7134_IRQ1, 0);
 716	saa_writel(SAA7134_IRQ2, irq2_mask);
 717
 718	return 0;
 719}
 720
 721static int saa7134_hwinit2(struct saa7134_dev *dev)
 722{
 723
 724	core_dbg("hwinit2\n");
 725
 726	saa7134_video_init2(dev);
 727	saa7134_tvaudio_init2(dev);
 728
 729	saa7134_hw_enable2(dev);
 730
 731	return 0;
 732}
 733
 734
 735/* shutdown */
 736static int saa7134_hwfini(struct saa7134_dev *dev)
 737{
 738	core_dbg("hwfini\n");
 739
 740	if (card_has_mpeg(dev))
 741		saa7134_ts_fini(dev);
 742	saa7134_input_fini(dev);
 743	saa7134_vbi_fini(dev);
 744	saa7134_tvaudio_fini(dev);
 745	saa7134_video_fini(dev);
 746	return 0;
 747}
 748
 749static void must_configure_manually(int has_eeprom)
 750{
 751	unsigned int i,p;
 752
 753	if (!has_eeprom)
 754		pr_warn("saa7134: <rant>\n"
 755			"saa7134:  Congratulations!  Your TV card vendor saved a few\n"
 756			"saa7134:  cents for a eeprom, thus your pci board has no\n"
 757			"saa7134:  subsystem ID and I can't identify it automatically\n"
 758			"saa7134: </rant>\n"
 759			"saa7134: I feel better now.  Ok, here are the good news:\n"
 760			"saa7134: You can use the card=<nr> insmod option to specify\n"
 761			"saa7134: which board do you have.  The list:\n");
 762	else
 763		pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
 764			"saa7134: insmod option to specify which board do you have, but this is\n"
 765			"saa7134: somewhat risky, as might damage your card. It is better to ask\n"
 766			"saa7134: for support at linux-media@vger.kernel.org.\n"
 767			"saa7134: The supported cards are:\n");
 768
 769	for (i = 0; i < saa7134_bcount; i++) {
 770		pr_warn("saa7134:   card=%d -> %-40.40s",
 771		       i,saa7134_boards[i].name);
 772		for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
 773			if (saa7134_pci_tbl[p].driver_data != i)
 774				continue;
 775			pr_cont(" %04x:%04x",
 776			       saa7134_pci_tbl[p].subvendor,
 777			       saa7134_pci_tbl[p].subdevice);
 778		}
 779		pr_cont("\n");
 780	}
 781}
 782
 783static void saa7134_unregister_media_device(struct saa7134_dev *dev)
 784{
 785
 786#ifdef CONFIG_MEDIA_CONTROLLER
 787	if (!dev->media_dev)
 788		return;
 789	media_device_unregister(dev->media_dev);
 790	media_device_cleanup(dev->media_dev);
 791	kfree(dev->media_dev);
 792	dev->media_dev = NULL;
 793#endif
 794}
 795
 796static void saa7134_media_release(struct saa7134_dev *dev)
 797{
 798#ifdef CONFIG_MEDIA_CONTROLLER
 799	int i;
 800
 801	for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
 802		media_device_unregister_entity(&dev->input_ent[i]);
 803#endif
 804}
 805
 806#if defined(CONFIG_MEDIA_CONTROLLER)
 807static void saa7134_create_entities(struct saa7134_dev *dev)
 808{
 809	int ret, i;
 810	struct media_entity *entity;
 811	struct media_entity *decoder = NULL;
 812
 813	/* Check if it is using an external analog TV demod */
 814	media_device_for_each_entity(entity, dev->media_dev) {
 815		if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
 816			decoder = entity;
 817			break;
 818		}
 819	}
 820
 821	/*
 822	 * saa713x is not using an external ATV demod.
 823	 * Register the internal one
 824	 */
 825	if (!decoder) {
 826		dev->demod.name = "saa713x";
 827		dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
 828		dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
 829		dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
 830		dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
 831		dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
 832
 833		ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
 834					     dev->demod_pad);
 835		if (ret < 0)
 836			pr_err("failed to initialize demod pad!\n");
 837
 838		ret = media_device_register_entity(dev->media_dev, &dev->demod);
 839		if (ret < 0)
 840			pr_err("failed to register demod entity!\n");
 841
 842		dev->decoder = &dev->demod;
 843	} else {
 844		dev->decoder = decoder;
 845	}
 846
 847	/* Initialize Video, VBI and Radio pads */
 848	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
 849	ret = media_entity_pads_init(&dev->video_dev->entity, 1,
 850				     &dev->video_pad);
 851	if (ret < 0)
 852		pr_err("failed to initialize video media entity!\n");
 853
 854	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
 855	ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
 856					&dev->vbi_pad);
 857	if (ret < 0)
 858		pr_err("failed to initialize vbi media entity!\n");
 859
 860	/* Create entities for each input connector */
 861	for (i = 0; i < SAA7134_INPUT_MAX; i++) {
 862		struct media_entity *ent = &dev->input_ent[i];
 863		struct saa7134_input *in = &card_in(dev, i);
 864
 865		if (in->type == SAA7134_NO_INPUT)
 866			break;
 867
 868		/* This input uses the S-Video connector */
 869		if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
 870			continue;
 871
 872		ent->name = saa7134_input_name[in->type];
 873		ent->flags = MEDIA_ENT_FL_CONNECTOR;
 874		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 875
 876		switch (in->type) {
 877		case SAA7134_INPUT_COMPOSITE:
 878		case SAA7134_INPUT_COMPOSITE0:
 879		case SAA7134_INPUT_COMPOSITE1:
 880		case SAA7134_INPUT_COMPOSITE2:
 881		case SAA7134_INPUT_COMPOSITE3:
 882		case SAA7134_INPUT_COMPOSITE4:
 883			ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
 884			break;
 885		case SAA7134_INPUT_SVIDEO:
 886		case SAA7134_INPUT_SVIDEO0:
 887		case SAA7134_INPUT_SVIDEO1:
 888			ent->function = MEDIA_ENT_F_CONN_SVIDEO;
 889			break;
 890		default:
 891			/*
 892			 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
 893			 *
 894			 * Please notice that neither SAA7134_INPUT_MUTE or
 895			 * SAA7134_INPUT_RADIO are defined at
 896			 * saa7134_board.input.
 897			 */
 898			ent->function = MEDIA_ENT_F_CONN_RF;
 899			break;
 900		}
 901
 902		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 903		if (ret < 0)
 904			pr_err("failed to initialize input pad[%d]!\n", i);
 905
 906		ret = media_device_register_entity(dev->media_dev, ent);
 907		if (ret < 0)
 908			pr_err("failed to register input entity %d!\n", i);
 909	}
 910
 911	/* Create input for Radio RF connector */
 912	if (card_has_radio(dev)) {
 913		struct saa7134_input *in = &saa7134_boards[dev->board].radio;
 914		struct media_entity *ent = &dev->input_ent[i];
 915
 916		ent->name = saa7134_input_name[in->type];
 917		ent->flags = MEDIA_ENT_FL_CONNECTOR;
 918		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
 919		ent->function = MEDIA_ENT_F_CONN_RF;
 920
 921		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
 922		if (ret < 0)
 923			pr_err("failed to initialize input pad[%d]!\n", i);
 924
 925		ret = media_device_register_entity(dev->media_dev, ent);
 926		if (ret < 0)
 927			pr_err("failed to register input entity %d!\n", i);
 928	}
 929}
 930#endif
 931
 932static struct video_device *vdev_init(struct saa7134_dev *dev,
 933				      struct video_device *template,
 934				      char *type)
 935{
 936	struct video_device *vfd;
 937
 938	vfd = video_device_alloc();
 939	if (NULL == vfd)
 940		return NULL;
 941	*vfd = *template;
 942	vfd->v4l2_dev  = &dev->v4l2_dev;
 943	vfd->release = video_device_release;
 944	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 945		 dev->name, type, saa7134_boards[dev->board].name);
 946	video_set_drvdata(vfd, dev);
 947	return vfd;
 948}
 949
 950static void saa7134_unregister_video(struct saa7134_dev *dev)
 951{
 952	saa7134_media_release(dev);
 953
 954	if (dev->video_dev) {
 955		if (video_is_registered(dev->video_dev))
 956			vb2_video_unregister_device(dev->video_dev);
 957		else
 958			video_device_release(dev->video_dev);
 959		dev->video_dev = NULL;
 960	}
 961	if (dev->vbi_dev) {
 962		if (video_is_registered(dev->vbi_dev))
 963			vb2_video_unregister_device(dev->vbi_dev);
 964		else
 965			video_device_release(dev->vbi_dev);
 966		dev->vbi_dev = NULL;
 967	}
 968	if (dev->radio_dev) {
 969		if (video_is_registered(dev->radio_dev))
 970			video_unregister_device(dev->radio_dev);
 971		else
 972			video_device_release(dev->radio_dev);
 973		dev->radio_dev = NULL;
 974	}
 975}
 976
 977static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
 978			    struct saa7134_dev *dev)
 979{
 980	int err;
 981
 982	if (NULL != dev->mops)
 983		return;
 984	if (saa7134_boards[dev->board].mpeg != ops->type)
 985		return;
 986	err = ops->init(dev);
 987	if (0 != err)
 988		return;
 989	dev->mops = ops;
 990}
 991
 992static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
 993			    struct saa7134_dev *dev)
 994{
 995	if (NULL == dev->mops)
 996		return;
 997	if (dev->mops != ops)
 998		return;
 999	dev->mops->fini(dev);
1000	dev->mops = NULL;
1001}
1002
1003static int saa7134_initdev(struct pci_dev *pci_dev,
1004			   const struct pci_device_id *pci_id)
1005{
1006	struct saa7134_dev *dev;
1007	struct saa7134_mpeg_ops *mops;
1008	int err;
1009
1010	if (saa7134_devcount == SAA7134_MAXBOARDS)
1011		return -ENOMEM;
1012
1013	dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1014	if (NULL == dev)
1015		return -ENOMEM;
1016
1017	dev->nr = saa7134_devcount;
1018	sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1019
1020#ifdef CONFIG_MEDIA_CONTROLLER
1021	dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1022	if (!dev->media_dev) {
1023		err = -ENOMEM;
1024		goto err_free_dev;
1025	}
1026	media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1027	dev->v4l2_dev.mdev = dev->media_dev;
1028#endif
1029
1030	err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1031	if (err)
1032		goto err_free_dev;
1033
1034	/* pci init */
1035	dev->pci = pci_dev;
1036	if (pci_enable_device(pci_dev)) {
1037		err = -EIO;
1038		goto err_v4l2_unregister;
1039	}
1040
1041	/* pci quirks */
1042	if (pci_pci_problems) {
1043		if (pci_pci_problems & PCIPCI_TRITON)
1044			pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1045		if (pci_pci_problems & PCIPCI_NATOMA)
1046			pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1047		if (pci_pci_problems & PCIPCI_VIAETBF)
1048			pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1049		if (pci_pci_problems & PCIPCI_VSFX)
1050			pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1051#ifdef PCIPCI_ALIMAGIK
1052		if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1053			pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1054			       dev->name);
1055			latency = 0x0A;
1056		}
1057#endif
1058	}
1059	if (UNSET != latency) {
1060		pr_info("%s: setting pci latency timer to %d\n",
1061		       dev->name,latency);
1062		pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1063	}
1064
1065	/* print pci info */
1066	dev->pci_rev = pci_dev->revision;
1067	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1068	pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1069		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1070		dev->pci_lat,
1071		(unsigned long long)pci_resource_start(pci_dev, 0));
1072	pci_set_master(pci_dev);
1073	err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
1074	if (err) {
1075		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1076		goto err_v4l2_unregister;
1077	}
1078
1079	/* board config */
1080	dev->board = pci_id->driver_data;
1081	if ((unsigned)card[dev->nr] < saa7134_bcount)
1082		dev->board = card[dev->nr];
1083	if (SAA7134_BOARD_UNKNOWN == dev->board)
1084		must_configure_manually(0);
1085	else if (SAA7134_BOARD_NOAUTO == dev->board) {
1086		must_configure_manually(1);
1087		dev->board = SAA7134_BOARD_UNKNOWN;
1088	}
1089	dev->autodetected = card[dev->nr] != dev->board;
1090	dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1091	dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1092	dev->radio_type = saa7134_boards[dev->board].radio_type;
1093	dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1094	dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1095	if (UNSET != tuner[dev->nr])
1096		dev->tuner_type = tuner[dev->nr];
1097	pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1098		dev->name,pci_dev->subsystem_vendor,
1099		pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1100		dev->board, dev->autodetected ?
1101		"autodetected" : "insmod option");
1102
1103	/* get mmio */
1104	if (!request_mem_region(pci_resource_start(pci_dev,0),
1105				pci_resource_len(pci_dev,0),
1106				dev->name)) {
1107		err = -EBUSY;
1108		pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1109		       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1110		goto err_v4l2_unregister;
1111	}
1112	dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1113			     pci_resource_len(pci_dev, 0));
1114	dev->bmmio = (__u8 __iomem *)dev->lmmio;
1115	if (NULL == dev->lmmio) {
1116		err = -EIO;
1117		pr_err("%s: can't ioremap() MMIO memory\n",
1118		       dev->name);
1119		goto err_release_mem_reg;
1120	}
1121
1122	/* initialize hardware #1 */
1123	saa7134_board_init1(dev);
1124	saa7134_hwinit1(dev);
1125
1126	/* get irq */
1127	err = request_irq(pci_dev->irq, saa7134_irq,
1128			  IRQF_SHARED, dev->name, dev);
1129	if (err < 0) {
1130		pr_err("%s: can't get IRQ %d\n",
1131		       dev->name,pci_dev->irq);
1132		goto err_iounmap;
1133	}
1134
1135	/* wait a bit, register i2c bus */
1136	msleep(100);
1137	saa7134_i2c_register(dev);
1138	saa7134_board_init2(dev);
1139
1140	saa7134_hwinit2(dev);
1141
1142	/* load i2c helpers */
1143	if (card_is_empress(dev)) {
1144		dev->empress_sd =
1145			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1146				"saa6752hs",
1147				saa7134_boards[dev->board].empress_addr, NULL);
1148
1149		if (dev->empress_sd)
1150			dev->empress_sd->grp_id = GRP_EMPRESS;
1151	}
1152
1153	if (saa7134_boards[dev->board].rds_addr) {
1154		struct v4l2_subdev *sd;
1155
1156		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1157				&dev->i2c_adap, "saa6588",
1158				0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1159		if (sd) {
1160			pr_info("%s: found RDS decoder\n", dev->name);
1161			dev->has_rds = 1;
1162		}
1163	}
1164
1165	mutex_lock(&saa7134_devlist_lock);
1166	list_for_each_entry(mops, &mops_list, next)
1167		mpeg_ops_attach(mops, dev);
1168	list_add_tail(&dev->devlist, &saa7134_devlist);
1169	mutex_unlock(&saa7134_devlist_lock);
1170
1171	/* check for signal */
1172	saa7134_irq_video_signalchange(dev);
1173
1174	if (TUNER_ABSENT != dev->tuner_type)
1175		saa_call_all(dev, core, s_power, 0);
1176
1177	/* register v4l devices */
1178	dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1179	dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1180	dev->video_dev->lock = &dev->lock;
1181	dev->video_dev->queue = &dev->video_vbq;
1182	dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1183				      V4L2_CAP_VIDEO_CAPTURE;
1184	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1185		dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1186
1187	err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1188				    video_nr[dev->nr]);
1189	if (err < 0) {
1190		pr_info("%s: can't register video device\n",
1191		       dev->name);
1192		goto err_unregister_video;
1193	}
1194	pr_info("%s: registered device %s [v4l2]\n",
1195	       dev->name, video_device_node_name(dev->video_dev));
1196
1197	dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1198	dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1199	dev->vbi_dev->lock = &dev->lock;
1200	dev->vbi_dev->queue = &dev->vbi_vbq;
1201	dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1202				    V4L2_CAP_VBI_CAPTURE;
1203	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1204		dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1205
1206	err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1207				    vbi_nr[dev->nr]);
1208	if (err < 0)
1209		goto err_unregister_video;
1210	pr_info("%s: registered device %s\n",
1211	       dev->name, video_device_node_name(dev->vbi_dev));
1212
1213	if (card_has_radio(dev)) {
1214		dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1215		dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1216		dev->radio_dev->lock = &dev->lock;
1217		dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1218		if (dev->has_rds)
1219			dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1220		err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1221					    radio_nr[dev->nr]);
1222		if (err < 0)
1223			goto err_unregister_video;
1224		pr_info("%s: registered device %s\n",
1225		       dev->name, video_device_node_name(dev->radio_dev));
1226	}
1227
1228#ifdef CONFIG_MEDIA_CONTROLLER
1229	saa7134_create_entities(dev);
1230
1231	err = v4l2_mc_create_media_graph(dev->media_dev);
1232	if (err) {
1233		pr_err("failed to create media graph\n");
1234		goto err_unregister_video;
1235	}
1236#endif
1237	/* everything worked */
1238	saa7134_devcount++;
1239
1240	if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1241		saa7134_dmasound_init(dev);
1242
1243	request_submodules(dev);
1244
1245	/*
1246	 * Do it at the end, to reduce dynamic configuration changes during
1247	 * the device init. Yet, as request_modules() can be async, the
1248	 * topology will likely change after load the saa7134 subdrivers.
1249	 */
1250#ifdef CONFIG_MEDIA_CONTROLLER
1251	err = media_device_register(dev->media_dev);
1252	if (err) {
1253		media_device_cleanup(dev->media_dev);
1254		goto err_unregister_video;
1255	}
1256#endif
1257
1258	return 0;
1259
1260err_unregister_video:
1261	saa7134_unregister_video(dev);
1262	list_del(&dev->devlist);
1263	saa7134_i2c_unregister(dev);
1264	free_irq(pci_dev->irq, dev);
1265err_iounmap:
1266	saa7134_hwfini(dev);
1267	iounmap(dev->lmmio);
1268err_release_mem_reg:
1269	release_mem_region(pci_resource_start(pci_dev,0),
1270			   pci_resource_len(pci_dev,0));
1271err_v4l2_unregister:
1272	v4l2_device_unregister(&dev->v4l2_dev);
1273err_free_dev:
1274#ifdef CONFIG_MEDIA_CONTROLLER
1275	kfree(dev->media_dev);
1276#endif
1277	kfree(dev);
1278	return err;
1279}
1280
1281static void saa7134_finidev(struct pci_dev *pci_dev)
1282{
1283	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1284	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1285	struct saa7134_mpeg_ops *mops;
1286
1287	flush_request_submodules(dev);
1288
1289	/* Release DMA sound modules if present */
1290	if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1291		saa7134_dmasound_exit(dev);
1292	}
1293
1294	/* debugging ... */
1295	if (irq_debug) {
1296		u32 report = saa_readl(SAA7134_IRQ_REPORT);
1297		u32 status = saa_readl(SAA7134_IRQ_STATUS);
1298		print_irqstatus(dev,42,report,status);
1299	}
1300
1301	/* disable peripheral devices */
1302	saa_writeb(SAA7134_SPECIAL_MODE,0);
1303
1304	/* shutdown hardware */
1305	saa_writel(SAA7134_IRQ1,0);
1306	saa_writel(SAA7134_IRQ2,0);
1307	saa_writel(SAA7134_MAIN_CTRL,0);
1308
1309	/* shutdown subsystems */
1310	saa7134_hwfini(dev);
1311
1312	/* unregister */
1313	mutex_lock(&saa7134_devlist_lock);
1314	list_del(&dev->devlist);
1315	list_for_each_entry(mops, &mops_list, next)
1316		mpeg_ops_detach(mops, dev);
1317	mutex_unlock(&saa7134_devlist_lock);
1318	saa7134_devcount--;
1319
1320	saa7134_i2c_unregister(dev);
1321	saa7134_unregister_video(dev);
1322
1323
1324	/* the DMA sound modules should be unloaded before reaching
1325	   this, but just in case they are still present... */
1326	if (dev->dmasound.priv_data != NULL) {
1327		free_irq(pci_dev->irq, &dev->dmasound);
1328		dev->dmasound.priv_data = NULL;
1329	}
1330
1331
1332	/* release resources */
1333	free_irq(pci_dev->irq, dev);
1334	iounmap(dev->lmmio);
1335	release_mem_region(pci_resource_start(pci_dev,0),
1336			   pci_resource_len(pci_dev,0));
1337
1338	v4l2_device_unregister(&dev->v4l2_dev);
1339
1340	saa7134_unregister_media_device(dev);
1341
1342	/* free memory */
1343	kfree(dev);
1344}
1345
1346/* resends a current buffer in queue after resume */
1347static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1348						 struct saa7134_dmaqueue *q)
1349{
1350	struct saa7134_buf *buf, *next;
1351
1352	assert_spin_locked(&dev->slock);
1353
1354	buf  = q->curr;
1355	next = buf;
1356	core_dbg("buffer_requeue\n");
1357
1358	if (!buf)
1359		return 0;
1360
1361	core_dbg("buffer_requeue : resending active buffer\n");
1362
1363	if (!list_empty(&q->queue))
1364		next = list_entry(q->queue.next, struct saa7134_buf,
1365					  entry);
1366	buf->activate(dev, buf, next);
1367
1368	return 0;
1369}
1370
1371static int __maybe_unused saa7134_suspend(struct device *dev_d)
1372{
1373	struct pci_dev *pci_dev = to_pci_dev(dev_d);
1374	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1375	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1376
1377	/* Disable interrupts, DMA, and rest of the chip*/
1378	saa_writel(SAA7134_IRQ1, 0);
1379	saa_writel(SAA7134_IRQ2, 0);
1380	saa_writel(SAA7134_MAIN_CTRL, 0);
1381
1382	dev->insuspend = 1;
1383	synchronize_irq(pci_dev->irq);
1384
1385	/* ACK interrupts once more, just in case,
1386		since the IRQ handler won't ack them anymore*/
1387
1388	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1389
1390	/* Disable timeout timers - if we have active buffers, we will
1391	   fill them on resume*/
1392
1393	timer_delete(&dev->video_q.timeout);
1394	timer_delete(&dev->vbi_q.timeout);
1395	timer_delete(&dev->ts_q.timeout);
1396
1397	if (dev->remote && dev->remote->dev->users)
1398		saa7134_ir_close(dev->remote->dev);
1399
1400	return 0;
1401}
1402
1403static int __maybe_unused saa7134_resume(struct device *dev_d)
1404{
1405	struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1406	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1407	unsigned long flags;
1408
1409	/* Do things that are done in saa7134_initdev ,
1410		except of initializing memory structures.*/
1411
1412	saa7134_board_init1(dev);
1413
1414	/* saa7134_hwinit1 */
1415	if (saa7134_boards[dev->board].video_out)
1416		saa7134_videoport_init(dev);
1417	if (card_has_mpeg(dev))
1418		saa7134_ts_init_hw(dev);
1419	if (dev->remote && dev->remote->dev->users)
1420		saa7134_ir_open(dev->remote->dev);
1421	saa7134_hw_enable1(dev);
1422
1423	msleep(100);
1424
1425	saa7134_board_init2(dev);
1426
1427	/*saa7134_hwinit2*/
1428	saa7134_set_tvnorm_hw(dev);
1429	saa7134_tvaudio_setmute(dev);
1430	saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1431	saa7134_tvaudio_init(dev);
1432	saa7134_enable_i2s(dev);
1433	saa7134_hw_enable2(dev);
1434
1435	saa7134_irq_video_signalchange(dev);
1436
1437	/*resume unfinished buffer(s)*/
1438	spin_lock_irqsave(&dev->slock, flags);
1439	saa7134_buffer_requeue(dev, &dev->video_q);
1440	saa7134_buffer_requeue(dev, &dev->vbi_q);
1441	saa7134_buffer_requeue(dev, &dev->ts_q);
1442
1443	/* FIXME: Disable DMA audio sound - temporary till proper support
1444		  is implemented*/
1445
1446	dev->dmasound.dma_running = 0;
1447
1448	/* start DMA now*/
1449	dev->insuspend = 0;
1450	smp_wmb();
1451	saa7134_set_dmabits(dev);
1452	spin_unlock_irqrestore(&dev->slock, flags);
1453
1454	return 0;
1455}
1456
1457/* ----------------------------------------------------------- */
1458
1459int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1460{
1461	struct saa7134_dev *dev;
1462
1463	mutex_lock(&saa7134_devlist_lock);
1464	list_for_each_entry(dev, &saa7134_devlist, devlist)
1465		mpeg_ops_attach(ops, dev);
1466	list_add_tail(&ops->next,&mops_list);
1467	mutex_unlock(&saa7134_devlist_lock);
1468	return 0;
1469}
1470
1471void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1472{
1473	struct saa7134_dev *dev;
1474
1475	mutex_lock(&saa7134_devlist_lock);
1476	list_del(&ops->next);
1477	list_for_each_entry(dev, &saa7134_devlist, devlist)
1478		mpeg_ops_detach(ops, dev);
1479	mutex_unlock(&saa7134_devlist_lock);
1480}
1481
1482EXPORT_SYMBOL(saa7134_ts_register);
1483EXPORT_SYMBOL(saa7134_ts_unregister);
1484
1485/* ----------------------------------------------------------- */
1486
1487static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1488
1489static struct pci_driver saa7134_pci_driver = {
1490	.name     = "saa7134",
1491	.id_table = saa7134_pci_tbl,
1492	.probe    = saa7134_initdev,
1493	.remove   = saa7134_finidev,
1494	.driver.pm = &saa7134_pm_ops,
1495};
1496
1497static int __init saa7134_init(void)
1498{
1499	pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1500	       SAA7134_VERSION);
1501	return pci_register_driver(&saa7134_pci_driver);
1502}
1503
1504static void __exit saa7134_fini(void)
1505{
1506	pci_unregister_driver(&saa7134_pci_driver);
1507}
1508
1509module_init(saa7134_init);
1510module_exit(saa7134_fini);
1511
1512/* ----------------------------------------------------------- */
1513
1514EXPORT_SYMBOL(saa7134_set_gpio);
1515EXPORT_SYMBOL(saa7134_boards);
1516
1517/* ----------------- for the DMA sound modules --------------- */
1518
1519EXPORT_SYMBOL(saa7134_dmasound_init);
1520EXPORT_SYMBOL(saa7134_dmasound_exit);
1521EXPORT_SYMBOL(saa7134_pgtable_free);
1522EXPORT_SYMBOL(saa7134_pgtable_build);
1523EXPORT_SYMBOL(saa7134_pgtable_alloc);
1524EXPORT_SYMBOL(saa7134_set_dmabits);