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 
26 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
27 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
28 MODULE_LICENSE("GPL");
29 MODULE_VERSION(SAA7134_VERSION);
30 
31 
32 /* ------------------------------------------------------------------ */
33 
34 static unsigned int irq_debug;
35 module_param(irq_debug, int, 0644);
36 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
37 
38 static unsigned int core_debug;
39 module_param(core_debug, int, 0644);
40 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
41 
42 static unsigned int gpio_tracking;
43 module_param(gpio_tracking, int, 0644);
44 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
45 
46 static unsigned int alsa = 1;
47 module_param(alsa, int, 0644);
48 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
49 
50 static unsigned int latency = UNSET;
51 module_param(latency, int, 0444);
52 MODULE_PARM_DESC(latency,"pci latency timer");
53 
54 int saa7134_no_overlay=-1;
55 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
56 MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
57 
58 bool saa7134_userptr;
59 module_param(saa7134_userptr, bool, 0644);
60 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
61 
62 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
63 static unsigned int vbi_nr[]   = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
64 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
65 static unsigned int tuner[]    = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
66 static unsigned int card[]     = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
67 
68 
69 module_param_array(video_nr, int, NULL, 0444);
70 module_param_array(vbi_nr,   int, NULL, 0444);
71 module_param_array(radio_nr, int, NULL, 0444);
72 module_param_array(tuner,    int, NULL, 0444);
73 module_param_array(card,     int, NULL, 0444);
74 
75 MODULE_PARM_DESC(video_nr, "video device number");
76 MODULE_PARM_DESC(vbi_nr,   "vbi device number");
77 MODULE_PARM_DESC(radio_nr, "radio device number");
78 MODULE_PARM_DESC(tuner,    "tuner type");
79 MODULE_PARM_DESC(card,     "card type");
80 
81 DEFINE_MUTEX(saa7134_devlist_lock);
82 EXPORT_SYMBOL(saa7134_devlist_lock);
83 LIST_HEAD(saa7134_devlist);
84 EXPORT_SYMBOL(saa7134_devlist);
85 static LIST_HEAD(mops_list);
86 static unsigned int saa7134_devcount;
87 
88 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
89 int (*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 
101 void 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 
116 void 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 
150 static 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 
164 static 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 
170 static 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 */
183 static 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) */
193 int 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 
203 int 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 
209 unsigned 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 
221 int 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 = dma_alloc_coherent(&pci->dev, SAA7134_PGTABLE_SIZE, &dma_addr,
227 				 GFP_KERNEL);
228 	if (NULL == cpu)
229 		return -ENOMEM;
230 	pt->size = SAA7134_PGTABLE_SIZE;
231 	pt->cpu  = cpu;
232 	pt->dma  = dma_addr;
233 	return 0;
234 }
235 
236 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
237 			  struct scatterlist *list, unsigned int length,
238 			  unsigned int startpage)
239 {
240 	__le32        *ptr;
241 	unsigned int  i, p;
242 
243 	BUG_ON(NULL == pt || NULL == pt->cpu);
244 
245 	ptr = pt->cpu + startpage;
246 	for (i = 0; i < length; i++, list = sg_next(list)) {
247 		for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++)
248 			*ptr = cpu_to_le32(sg_dma_address(list) +
249 						list->offset + p * 4096);
250 	}
251 	return 0;
252 }
253 
254 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
255 {
256 	if (NULL == pt->cpu)
257 		return;
258 	dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma);
259 	pt->cpu = NULL;
260 }
261 
262 /* ------------------------------------------------------------------ */
263 
264 int saa7134_buffer_queue(struct saa7134_dev *dev,
265 			 struct saa7134_dmaqueue *q,
266 			 struct saa7134_buf *buf)
267 {
268 	struct saa7134_buf *next = NULL;
269 	unsigned long flags;
270 
271 	spin_lock_irqsave(&dev->slock, flags);
272 	core_dbg("buffer_queue %p\n", buf);
273 	if (NULL == q->curr) {
274 		if (!q->need_two) {
275 			q->curr = buf;
276 			buf->activate(dev, buf, NULL);
277 		} else if (list_empty(&q->queue)) {
278 			list_add_tail(&buf->entry, &q->queue);
279 		} else {
280 			next = list_entry(q->queue.next, struct saa7134_buf,
281 					  entry);
282 			q->curr = buf;
283 			buf->activate(dev, buf, next);
284 		}
285 	} else {
286 		list_add_tail(&buf->entry, &q->queue);
287 	}
288 	spin_unlock_irqrestore(&dev->slock, flags);
289 	return 0;
290 }
291 
292 void saa7134_buffer_finish(struct saa7134_dev *dev,
293 			   struct saa7134_dmaqueue *q,
294 			   unsigned int state)
295 {
296 	core_dbg("buffer_finish %p\n", q->curr);
297 
298 	/* finish current buffer */
299 	q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
300 	q->curr->vb2.sequence = q->seq_nr++;
301 	vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
302 	q->curr = NULL;
303 }
304 
305 void saa7134_buffer_next(struct saa7134_dev *dev,
306 			 struct saa7134_dmaqueue *q)
307 {
308 	struct saa7134_buf *buf,*next = NULL;
309 
310 	assert_spin_locked(&dev->slock);
311 	BUG_ON(NULL != q->curr);
312 
313 	if (!list_empty(&q->queue)) {
314 		/* activate next one from queue */
315 		buf = list_entry(q->queue.next, struct saa7134_buf, entry);
316 		core_dbg("buffer_next %p [prev=%p/next=%p]\n",
317 			buf, q->queue.prev, q->queue.next);
318 		list_del(&buf->entry);
319 		if (!list_empty(&q->queue))
320 			next = list_entry(q->queue.next, struct saa7134_buf, entry);
321 		q->curr = buf;
322 		buf->activate(dev, buf, next);
323 		core_dbg("buffer_next #2 prev=%p/next=%p\n",
324 			q->queue.prev, q->queue.next);
325 	} else {
326 		/* nothing to do -- just stop DMA */
327 		core_dbg("buffer_next %p\n", NULL);
328 		saa7134_set_dmabits(dev);
329 		del_timer(&q->timeout);
330 	}
331 }
332 
333 void saa7134_buffer_timeout(struct timer_list *t)
334 {
335 	struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
336 	struct saa7134_dev *dev = q->dev;
337 	unsigned long flags;
338 
339 	spin_lock_irqsave(&dev->slock, flags);
340 
341 	/* try to reset the hardware (SWRST) */
342 	saa_writeb(SAA7134_REGION_ENABLE, 0x00);
343 	saa_writeb(SAA7134_REGION_ENABLE, 0x80);
344 	saa_writeb(SAA7134_REGION_ENABLE, 0x00);
345 
346 	/* flag current buffer as failed,
347 	   try to start over with the next one. */
348 	if (q->curr) {
349 		core_dbg("timeout on %p\n", q->curr);
350 		saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
351 	}
352 	saa7134_buffer_next(dev, q);
353 	spin_unlock_irqrestore(&dev->slock, flags);
354 }
355 
356 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
357 {
358 	unsigned long flags;
359 	struct list_head *pos, *n;
360 	struct saa7134_buf *tmp;
361 
362 	spin_lock_irqsave(&dev->slock, flags);
363 	list_for_each_safe(pos, n, &q->queue) {
364 		tmp = list_entry(pos, struct saa7134_buf, entry);
365 		vb2_buffer_done(&tmp->vb2.vb2_buf,
366 				VB2_BUF_STATE_ERROR);
367 		list_del(pos);
368 		tmp = NULL;
369 	}
370 	spin_unlock_irqrestore(&dev->slock, flags);
371 	saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
372 }
373 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
374 
375 /* ------------------------------------------------------------------ */
376 
377 int saa7134_set_dmabits(struct saa7134_dev *dev)
378 {
379 	u32 split, task=0, ctrl=0, irq=0;
380 	enum v4l2_field cap = V4L2_FIELD_ANY;
381 	enum v4l2_field ov  = V4L2_FIELD_ANY;
382 
383 	assert_spin_locked(&dev->slock);
384 
385 	if (dev->insuspend)
386 		return 0;
387 
388 	/* video capture -- dma 0 + video task A */
389 	if (dev->video_q.curr) {
390 		task |= 0x01;
391 		ctrl |= SAA7134_MAIN_CTRL_TE0;
392 		irq  |= SAA7134_IRQ1_INTE_RA0_1 |
393 			SAA7134_IRQ1_INTE_RA0_0;
394 		cap = dev->field;
395 	}
396 
397 	/* video capture -- dma 1+2 (planar modes) */
398 	if (dev->video_q.curr && dev->fmt->planar) {
399 		ctrl |= SAA7134_MAIN_CTRL_TE4 |
400 			SAA7134_MAIN_CTRL_TE5;
401 	}
402 
403 	/* screen overlay -- dma 0 + video task B */
404 	if (dev->ovenable) {
405 		task |= 0x10;
406 		ctrl |= SAA7134_MAIN_CTRL_TE1;
407 		ov = dev->ovfield;
408 	}
409 
410 	/* vbi capture -- dma 0 + vbi task A+B */
411 	if (dev->vbi_q.curr) {
412 		task |= 0x22;
413 		ctrl |= SAA7134_MAIN_CTRL_TE2 |
414 			SAA7134_MAIN_CTRL_TE3;
415 		irq  |= SAA7134_IRQ1_INTE_RA0_7 |
416 			SAA7134_IRQ1_INTE_RA0_6 |
417 			SAA7134_IRQ1_INTE_RA0_5 |
418 			SAA7134_IRQ1_INTE_RA0_4;
419 	}
420 
421 	/* audio capture -- dma 3 */
422 	if (dev->dmasound.dma_running) {
423 		ctrl |= SAA7134_MAIN_CTRL_TE6;
424 		irq  |= SAA7134_IRQ1_INTE_RA3_1 |
425 			SAA7134_IRQ1_INTE_RA3_0;
426 	}
427 
428 	/* TS capture -- dma 5 */
429 	if (dev->ts_q.curr) {
430 		ctrl |= SAA7134_MAIN_CTRL_TE5;
431 		irq  |= SAA7134_IRQ1_INTE_RA2_1 |
432 			SAA7134_IRQ1_INTE_RA2_0;
433 	}
434 
435 	/* set task conditions + field handling */
436 	if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
437 		/* default config -- use full frames */
438 		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
439 		saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
440 		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
441 		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
442 		split = 0;
443 	} else {
444 		/* split fields between tasks */
445 		if (V4L2_FIELD_TOP == cap) {
446 			/* odd A, even B, repeat */
447 			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
448 			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
449 		} else {
450 			/* odd B, even A, repeat */
451 			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
452 			saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
453 		}
454 		saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
455 		saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
456 		split = 1;
457 	}
458 
459 	/* irqs */
460 	saa_writeb(SAA7134_REGION_ENABLE, task);
461 	saa_writel(SAA7134_IRQ1,          irq);
462 	saa_andorl(SAA7134_MAIN_CTRL,
463 		   SAA7134_MAIN_CTRL_TE0 |
464 		   SAA7134_MAIN_CTRL_TE1 |
465 		   SAA7134_MAIN_CTRL_TE2 |
466 		   SAA7134_MAIN_CTRL_TE3 |
467 		   SAA7134_MAIN_CTRL_TE4 |
468 		   SAA7134_MAIN_CTRL_TE5 |
469 		   SAA7134_MAIN_CTRL_TE6,
470 		   ctrl);
471 	core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
472 		task, ctrl, irq, split ? "no" : "yes");
473 
474 	return 0;
475 }
476 
477 /* ------------------------------------------------------------------ */
478 /* IRQ handler + helpers                                              */
479 
480 static char *irqbits[] = {
481 	"DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
482 	"AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
483 	"TRIG_ERR", "CONF_ERR", "LOAD_ERR",
484 	"GPIO16", "GPIO18", "GPIO22", "GPIO23"
485 };
486 #define IRQBITS ARRAY_SIZE(irqbits)
487 
488 static void print_irqstatus(struct saa7134_dev *dev, int loop,
489 			    unsigned long report, unsigned long status)
490 {
491 	unsigned int i;
492 
493 	irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
494 		loop, jiffies, report, status);
495 	for (i = 0; i < IRQBITS; i++) {
496 		if (!(report & (1 << i)))
497 			continue;
498 		pr_cont(" %s", irqbits[i]);
499 	}
500 	if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
501 		pr_cont(" | RA0=%s,%s,%s,%ld",
502 			(status & 0x40) ? "vbi"  : "video",
503 			(status & 0x20) ? "b"    : "a",
504 			(status & 0x10) ? "odd"  : "even",
505 			(status & 0x0f));
506 	}
507 	pr_cont("\n");
508 }
509 
510 static irqreturn_t saa7134_irq(int irq, void *dev_id)
511 {
512 	struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
513 	unsigned long report,status;
514 	int loop, handled = 0;
515 
516 	if (dev->insuspend)
517 		goto out;
518 
519 	for (loop = 0; loop < 10; loop++) {
520 		report = saa_readl(SAA7134_IRQ_REPORT);
521 		status = saa_readl(SAA7134_IRQ_STATUS);
522 
523 		/* If dmasound support is active and we get a sound report,
524 		 * mask out the report and let the saa7134-alsa module deal
525 		 * with it */
526 		if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
527 			(dev->dmasound.priv_data != NULL) )
528 		{
529 			irq_dbg(2, "preserving DMA sound interrupt\n");
530 			report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
531 		}
532 
533 		if (0 == report) {
534 			irq_dbg(2, "no (more) work\n");
535 			goto out;
536 		}
537 
538 		handled = 1;
539 		saa_writel(SAA7134_IRQ_REPORT,report);
540 		if (irq_debug)
541 			print_irqstatus(dev,loop,report,status);
542 
543 
544 		if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
545 			(report & SAA7134_IRQ_REPORT_INTL))
546 				saa7134_irq_video_signalchange(dev);
547 
548 
549 		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
550 		    (status & 0x60) == 0)
551 			saa7134_irq_video_done(dev,status);
552 
553 		if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
554 		    (status & 0x40) == 0x40)
555 			saa7134_irq_vbi_done(dev,status);
556 
557 		if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
558 		    card_has_mpeg(dev)) {
559 			if (dev->mops->irq_ts_done != NULL)
560 				dev->mops->irq_ts_done(dev, status);
561 			else
562 				saa7134_irq_ts_done(dev, status);
563 		}
564 
565 		if (report & SAA7134_IRQ_REPORT_GPIO16) {
566 			switch (dev->has_remote) {
567 				case SAA7134_REMOTE_GPIO:
568 					if (!dev->remote)
569 						break;
570 					if  (dev->remote->mask_keydown & 0x10000) {
571 						saa7134_input_irq(dev);
572 					}
573 					break;
574 
575 				case SAA7134_REMOTE_I2C:
576 					break;			/* FIXME: invoke I2C get_key() */
577 
578 				default:			/* GPIO16 not used by IR remote */
579 					break;
580 			}
581 		}
582 
583 		if (report & SAA7134_IRQ_REPORT_GPIO18) {
584 			switch (dev->has_remote) {
585 				case SAA7134_REMOTE_GPIO:
586 					if (!dev->remote)
587 						break;
588 					if ((dev->remote->mask_keydown & 0x40000) ||
589 					    (dev->remote->mask_keyup & 0x40000)) {
590 						saa7134_input_irq(dev);
591 					}
592 					break;
593 
594 				case SAA7134_REMOTE_I2C:
595 					break;			/* FIXME: invoke I2C get_key() */
596 
597 				default:			/* GPIO18 not used by IR remote */
598 					break;
599 			}
600 		}
601 	}
602 
603 	if (10 == loop) {
604 		print_irqstatus(dev,loop,report,status);
605 		if (report & SAA7134_IRQ_REPORT_PE) {
606 			/* disable all parity error */
607 			pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
608 				dev->name);
609 			saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
610 		} else if (report & SAA7134_IRQ_REPORT_GPIO16) {
611 			/* disable gpio16 IRQ */
612 			pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
613 				dev->name);
614 			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
615 			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
616 		} else if (report & SAA7134_IRQ_REPORT_GPIO18) {
617 			/* disable gpio18 IRQs */
618 			pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
619 				dev->name);
620 			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
621 			saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
622 		} else {
623 			/* disable all irqs */
624 			pr_warn("%s/irq: looping -- clearing all enable bits\n",
625 				dev->name);
626 			saa_writel(SAA7134_IRQ1,0);
627 			saa_writel(SAA7134_IRQ2,0);
628 		}
629 	}
630 
631  out:
632 	return IRQ_RETVAL(handled);
633 }
634 
635 /* ------------------------------------------------------------------ */
636 
637 /* early init (no i2c, no irq) */
638 
639 static int saa7134_hw_enable1(struct saa7134_dev *dev)
640 {
641 	/* RAM FIFO config */
642 	saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
643 	saa_writel(SAA7134_THRESHOULD, 0x02020202);
644 
645 	/* enable audio + video processing */
646 	saa_writel(SAA7134_MAIN_CTRL,
647 			SAA7134_MAIN_CTRL_VPLLE |
648 			SAA7134_MAIN_CTRL_APLLE |
649 			SAA7134_MAIN_CTRL_EXOSC |
650 			SAA7134_MAIN_CTRL_EVFE1 |
651 			SAA7134_MAIN_CTRL_EVFE2 |
652 			SAA7134_MAIN_CTRL_ESFE  |
653 			SAA7134_MAIN_CTRL_EBDAC);
654 
655 	/*
656 	* Initialize OSS _after_ enabling audio clock PLL and audio processing.
657 	* OSS initialization writes to registers via the audio DSP; these
658 	* writes will fail unless the audio clock has been started.  At worst,
659 	* audio will not work.
660 	*/
661 
662 	/* enable peripheral devices */
663 	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
664 
665 	/* set vertical line numbering start (vbi needs this) */
666 	saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
667 
668 	return 0;
669 }
670 
671 static int saa7134_hwinit1(struct saa7134_dev *dev)
672 {
673 	core_dbg("hwinit1\n");
674 
675 	saa_writel(SAA7134_IRQ1, 0);
676 	saa_writel(SAA7134_IRQ2, 0);
677 
678 	/* Clear any stale IRQ reports */
679 	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
680 
681 	mutex_init(&dev->lock);
682 	spin_lock_init(&dev->slock);
683 
684 	saa7134_track_gpio(dev,"pre-init");
685 	saa7134_video_init1(dev);
686 	saa7134_vbi_init1(dev);
687 	if (card_has_mpeg(dev))
688 		saa7134_ts_init1(dev);
689 	saa7134_input_init1(dev);
690 
691 	saa7134_hw_enable1(dev);
692 
693 	return 0;
694 }
695 
696 /* late init (with i2c + irq) */
697 static int saa7134_hw_enable2(struct saa7134_dev *dev)
698 {
699 
700 	unsigned int irq2_mask;
701 
702 	/* enable IRQ's */
703 	irq2_mask =
704 		SAA7134_IRQ2_INTE_DEC3    |
705 		SAA7134_IRQ2_INTE_DEC2    |
706 		SAA7134_IRQ2_INTE_DEC1    |
707 		SAA7134_IRQ2_INTE_DEC0    |
708 		SAA7134_IRQ2_INTE_PE      |
709 		SAA7134_IRQ2_INTE_AR;
710 
711 	if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
712 		if (dev->remote->mask_keydown & 0x10000)
713 			irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
714 		else {		/* Allow enabling both IRQ edge triggers */
715 			if (dev->remote->mask_keydown & 0x40000)
716 				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
717 			if (dev->remote->mask_keyup & 0x40000)
718 				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
719 		}
720 	}
721 
722 	if (dev->has_remote == SAA7134_REMOTE_I2C) {
723 		request_module("ir-kbd-i2c");
724 	}
725 
726 	saa_writel(SAA7134_IRQ1, 0);
727 	saa_writel(SAA7134_IRQ2, irq2_mask);
728 
729 	return 0;
730 }
731 
732 static int saa7134_hwinit2(struct saa7134_dev *dev)
733 {
734 
735 	core_dbg("hwinit2\n");
736 
737 	saa7134_video_init2(dev);
738 	saa7134_tvaudio_init2(dev);
739 
740 	saa7134_hw_enable2(dev);
741 
742 	return 0;
743 }
744 
745 
746 /* shutdown */
747 static int saa7134_hwfini(struct saa7134_dev *dev)
748 {
749 	core_dbg("hwfini\n");
750 
751 	if (card_has_mpeg(dev))
752 		saa7134_ts_fini(dev);
753 	saa7134_input_fini(dev);
754 	saa7134_vbi_fini(dev);
755 	saa7134_tvaudio_fini(dev);
756 	saa7134_video_fini(dev);
757 	return 0;
758 }
759 
760 static void must_configure_manually(int has_eeprom)
761 {
762 	unsigned int i,p;
763 
764 	if (!has_eeprom)
765 		pr_warn("saa7134: <rant>\n"
766 			"saa7134:  Congratulations!  Your TV card vendor saved a few\n"
767 			"saa7134:  cents for a eeprom, thus your pci board has no\n"
768 			"saa7134:  subsystem ID and I can't identify it automatically\n"
769 			"saa7134: </rant>\n"
770 			"saa7134: I feel better now.  Ok, here are the good news:\n"
771 			"saa7134: You can use the card=<nr> insmod option to specify\n"
772 			"saa7134: which board do you have.  The list:\n");
773 	else
774 		pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
775 			"saa7134: insmod option to specify which board do you have, but this is\n"
776 			"saa7134: somewhat risky, as might damage your card. It is better to ask\n"
777 			"saa7134: for support at linux-media@vger.kernel.org.\n"
778 			"saa7134: The supported cards are:\n");
779 
780 	for (i = 0; i < saa7134_bcount; i++) {
781 		pr_warn("saa7134:   card=%d -> %-40.40s",
782 		       i,saa7134_boards[i].name);
783 		for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
784 			if (saa7134_pci_tbl[p].driver_data != i)
785 				continue;
786 			pr_cont(" %04x:%04x",
787 			       saa7134_pci_tbl[p].subvendor,
788 			       saa7134_pci_tbl[p].subdevice);
789 		}
790 		pr_cont("\n");
791 	}
792 }
793 
794 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
795 {
796 
797 #ifdef CONFIG_MEDIA_CONTROLLER
798 	if (!dev->media_dev)
799 		return;
800 	media_device_unregister(dev->media_dev);
801 	media_device_cleanup(dev->media_dev);
802 	kfree(dev->media_dev);
803 	dev->media_dev = NULL;
804 #endif
805 }
806 
807 static void saa7134_media_release(struct saa7134_dev *dev)
808 {
809 #ifdef CONFIG_MEDIA_CONTROLLER
810 	int i;
811 
812 	for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
813 		media_device_unregister_entity(&dev->input_ent[i]);
814 #endif
815 }
816 
817 #if defined(CONFIG_MEDIA_CONTROLLER)
818 static void saa7134_create_entities(struct saa7134_dev *dev)
819 {
820 	int ret, i;
821 	struct media_entity *entity;
822 	struct media_entity *decoder = NULL;
823 
824 	/* Check if it is using an external analog TV demod */
825 	media_device_for_each_entity(entity, dev->media_dev) {
826 		if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
827 			decoder = entity;
828 			break;
829 		}
830 	}
831 
832 	/*
833 	 * saa713x is not using an external ATV demod.
834 	 * Register the internal one
835 	 */
836 	if (!decoder) {
837 		dev->demod.name = "saa713x";
838 		dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
839 		dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
840 		dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
841 		dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
842 		dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
843 
844 		ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
845 					     dev->demod_pad);
846 		if (ret < 0)
847 			pr_err("failed to initialize demod pad!\n");
848 
849 		ret = media_device_register_entity(dev->media_dev, &dev->demod);
850 		if (ret < 0)
851 			pr_err("failed to register demod entity!\n");
852 
853 		dev->decoder = &dev->demod;
854 	} else {
855 		dev->decoder = decoder;
856 	}
857 
858 	/* Initialize Video, VBI and Radio pads */
859 	dev->video_pad.flags = MEDIA_PAD_FL_SINK;
860 	ret = media_entity_pads_init(&dev->video_dev->entity, 1,
861 				     &dev->video_pad);
862 	if (ret < 0)
863 		pr_err("failed to initialize video media entity!\n");
864 
865 	dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
866 	ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
867 					&dev->vbi_pad);
868 	if (ret < 0)
869 		pr_err("failed to initialize vbi media entity!\n");
870 
871 	/* Create entities for each input connector */
872 	for (i = 0; i < SAA7134_INPUT_MAX; i++) {
873 		struct media_entity *ent = &dev->input_ent[i];
874 		struct saa7134_input *in = &card_in(dev, i);
875 
876 		if (in->type == SAA7134_NO_INPUT)
877 			break;
878 
879 		/* This input uses the S-Video connector */
880 		if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
881 			continue;
882 
883 		ent->name = saa7134_input_name[in->type];
884 		ent->flags = MEDIA_ENT_FL_CONNECTOR;
885 		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
886 
887 		switch (in->type) {
888 		case SAA7134_INPUT_COMPOSITE:
889 		case SAA7134_INPUT_COMPOSITE0:
890 		case SAA7134_INPUT_COMPOSITE1:
891 		case SAA7134_INPUT_COMPOSITE2:
892 		case SAA7134_INPUT_COMPOSITE3:
893 		case SAA7134_INPUT_COMPOSITE4:
894 			ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
895 			break;
896 		case SAA7134_INPUT_SVIDEO:
897 		case SAA7134_INPUT_SVIDEO0:
898 		case SAA7134_INPUT_SVIDEO1:
899 			ent->function = MEDIA_ENT_F_CONN_SVIDEO;
900 			break;
901 		default:
902 			/*
903 			 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
904 			 *
905 			 * Please notice that neither SAA7134_INPUT_MUTE or
906 			 * SAA7134_INPUT_RADIO are defined at
907 			 * saa7134_board.input.
908 			 */
909 			ent->function = MEDIA_ENT_F_CONN_RF;
910 			break;
911 		}
912 
913 		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
914 		if (ret < 0)
915 			pr_err("failed to initialize input pad[%d]!\n", i);
916 
917 		ret = media_device_register_entity(dev->media_dev, ent);
918 		if (ret < 0)
919 			pr_err("failed to register input entity %d!\n", i);
920 	}
921 
922 	/* Create input for Radio RF connector */
923 	if (card_has_radio(dev)) {
924 		struct saa7134_input *in = &saa7134_boards[dev->board].radio;
925 		struct media_entity *ent = &dev->input_ent[i];
926 
927 		ent->name = saa7134_input_name[in->type];
928 		ent->flags = MEDIA_ENT_FL_CONNECTOR;
929 		dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
930 		ent->function = MEDIA_ENT_F_CONN_RF;
931 
932 		ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
933 		if (ret < 0)
934 			pr_err("failed to initialize input pad[%d]!\n", i);
935 
936 		ret = media_device_register_entity(dev->media_dev, ent);
937 		if (ret < 0)
938 			pr_err("failed to register input entity %d!\n", i);
939 	}
940 }
941 #endif
942 
943 static struct video_device *vdev_init(struct saa7134_dev *dev,
944 				      struct video_device *template,
945 				      char *type)
946 {
947 	struct video_device *vfd;
948 
949 	vfd = video_device_alloc();
950 	if (NULL == vfd)
951 		return NULL;
952 	*vfd = *template;
953 	vfd->v4l2_dev  = &dev->v4l2_dev;
954 	vfd->release = video_device_release;
955 	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
956 		 dev->name, type, saa7134_boards[dev->board].name);
957 	video_set_drvdata(vfd, dev);
958 	return vfd;
959 }
960 
961 static void saa7134_unregister_video(struct saa7134_dev *dev)
962 {
963 	saa7134_media_release(dev);
964 
965 	if (dev->video_dev) {
966 		if (video_is_registered(dev->video_dev))
967 			vb2_video_unregister_device(dev->video_dev);
968 		else
969 			video_device_release(dev->video_dev);
970 		dev->video_dev = NULL;
971 	}
972 	if (dev->vbi_dev) {
973 		if (video_is_registered(dev->vbi_dev))
974 			vb2_video_unregister_device(dev->vbi_dev);
975 		else
976 			video_device_release(dev->vbi_dev);
977 		dev->vbi_dev = NULL;
978 	}
979 	if (dev->radio_dev) {
980 		if (video_is_registered(dev->radio_dev))
981 			vb2_video_unregister_device(dev->radio_dev);
982 		else
983 			video_device_release(dev->radio_dev);
984 		dev->radio_dev = NULL;
985 	}
986 }
987 
988 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
989 			    struct saa7134_dev *dev)
990 {
991 	int err;
992 
993 	if (NULL != dev->mops)
994 		return;
995 	if (saa7134_boards[dev->board].mpeg != ops->type)
996 		return;
997 	err = ops->init(dev);
998 	if (0 != err)
999 		return;
1000 	dev->mops = ops;
1001 }
1002 
1003 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1004 			    struct saa7134_dev *dev)
1005 {
1006 	if (NULL == dev->mops)
1007 		return;
1008 	if (dev->mops != ops)
1009 		return;
1010 	dev->mops->fini(dev);
1011 	dev->mops = NULL;
1012 }
1013 
1014 static int saa7134_initdev(struct pci_dev *pci_dev,
1015 			   const struct pci_device_id *pci_id)
1016 {
1017 	struct saa7134_dev *dev;
1018 	struct saa7134_mpeg_ops *mops;
1019 	int err;
1020 
1021 	if (saa7134_devcount == SAA7134_MAXBOARDS)
1022 		return -ENOMEM;
1023 
1024 	dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1025 	if (NULL == dev)
1026 		return -ENOMEM;
1027 
1028 	dev->nr = saa7134_devcount;
1029 	sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1030 
1031 #ifdef CONFIG_MEDIA_CONTROLLER
1032 	dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1033 	if (!dev->media_dev) {
1034 		err = -ENOMEM;
1035 		goto err_free_dev;
1036 	}
1037 	media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1038 	dev->v4l2_dev.mdev = dev->media_dev;
1039 #endif
1040 
1041 	err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1042 	if (err)
1043 		goto err_free_dev;
1044 
1045 	/* pci init */
1046 	dev->pci = pci_dev;
1047 	if (pci_enable_device(pci_dev)) {
1048 		err = -EIO;
1049 		goto err_v4l2_unregister;
1050 	}
1051 
1052 	/* pci quirks */
1053 	if (pci_pci_problems) {
1054 		if (pci_pci_problems & PCIPCI_TRITON)
1055 			pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1056 		if (pci_pci_problems & PCIPCI_NATOMA)
1057 			pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1058 		if (pci_pci_problems & PCIPCI_VIAETBF)
1059 			pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1060 		if (pci_pci_problems & PCIPCI_VSFX)
1061 			pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1062 #ifdef PCIPCI_ALIMAGIK
1063 		if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1064 			pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1065 			       dev->name);
1066 			latency = 0x0A;
1067 		}
1068 #endif
1069 		if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1070 			pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1071 				dev->name);
1072 			if (!saa7134_no_overlay) {
1073 				pr_info("%s: quirk: overlay mode will be disabled.\n",
1074 						dev->name);
1075 				saa7134_no_overlay = 1;
1076 			} else {
1077 				pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1078 						dev->name);
1079 			}
1080 		}
1081 	}
1082 	if (UNSET != latency) {
1083 		pr_info("%s: setting pci latency timer to %d\n",
1084 		       dev->name,latency);
1085 		pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1086 	}
1087 
1088 	/* print pci info */
1089 	dev->pci_rev = pci_dev->revision;
1090 	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1091 	pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1092 		dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1093 		dev->pci_lat,
1094 		(unsigned long long)pci_resource_start(pci_dev, 0));
1095 	pci_set_master(pci_dev);
1096 	err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
1097 	if (err) {
1098 		pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1099 		goto err_v4l2_unregister;
1100 	}
1101 
1102 	/* board config */
1103 	dev->board = pci_id->driver_data;
1104 	if ((unsigned)card[dev->nr] < saa7134_bcount)
1105 		dev->board = card[dev->nr];
1106 	if (SAA7134_BOARD_UNKNOWN == dev->board)
1107 		must_configure_manually(0);
1108 	else if (SAA7134_BOARD_NOAUTO == dev->board) {
1109 		must_configure_manually(1);
1110 		dev->board = SAA7134_BOARD_UNKNOWN;
1111 	}
1112 	dev->autodetected = card[dev->nr] != dev->board;
1113 	dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1114 	dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1115 	dev->radio_type = saa7134_boards[dev->board].radio_type;
1116 	dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1117 	dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1118 	if (UNSET != tuner[dev->nr])
1119 		dev->tuner_type = tuner[dev->nr];
1120 	pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1121 		dev->name,pci_dev->subsystem_vendor,
1122 		pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1123 		dev->board, dev->autodetected ?
1124 		"autodetected" : "insmod option");
1125 
1126 	/* get mmio */
1127 	if (!request_mem_region(pci_resource_start(pci_dev,0),
1128 				pci_resource_len(pci_dev,0),
1129 				dev->name)) {
1130 		err = -EBUSY;
1131 		pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1132 		       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1133 		goto err_v4l2_unregister;
1134 	}
1135 	dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1136 			     pci_resource_len(pci_dev, 0));
1137 	dev->bmmio = (__u8 __iomem *)dev->lmmio;
1138 	if (NULL == dev->lmmio) {
1139 		err = -EIO;
1140 		pr_err("%s: can't ioremap() MMIO memory\n",
1141 		       dev->name);
1142 		goto err_release_mem_reg;
1143 	}
1144 
1145 	/* initialize hardware #1 */
1146 	saa7134_board_init1(dev);
1147 	saa7134_hwinit1(dev);
1148 
1149 	/* get irq */
1150 	err = request_irq(pci_dev->irq, saa7134_irq,
1151 			  IRQF_SHARED, dev->name, dev);
1152 	if (err < 0) {
1153 		pr_err("%s: can't get IRQ %d\n",
1154 		       dev->name,pci_dev->irq);
1155 		goto err_iounmap;
1156 	}
1157 
1158 	/* wait a bit, register i2c bus */
1159 	msleep(100);
1160 	saa7134_i2c_register(dev);
1161 	saa7134_board_init2(dev);
1162 
1163 	saa7134_hwinit2(dev);
1164 
1165 	/* load i2c helpers */
1166 	if (card_is_empress(dev)) {
1167 		dev->empress_sd =
1168 			v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1169 				"saa6752hs",
1170 				saa7134_boards[dev->board].empress_addr, NULL);
1171 
1172 		if (dev->empress_sd)
1173 			dev->empress_sd->grp_id = GRP_EMPRESS;
1174 	}
1175 
1176 	if (saa7134_boards[dev->board].rds_addr) {
1177 		struct v4l2_subdev *sd;
1178 
1179 		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1180 				&dev->i2c_adap, "saa6588",
1181 				0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1182 		if (sd) {
1183 			pr_info("%s: found RDS decoder\n", dev->name);
1184 			dev->has_rds = 1;
1185 		}
1186 	}
1187 
1188 	mutex_lock(&saa7134_devlist_lock);
1189 	list_for_each_entry(mops, &mops_list, next)
1190 		mpeg_ops_attach(mops, dev);
1191 	list_add_tail(&dev->devlist, &saa7134_devlist);
1192 	mutex_unlock(&saa7134_devlist_lock);
1193 
1194 	/* check for signal */
1195 	saa7134_irq_video_signalchange(dev);
1196 
1197 	if (TUNER_ABSENT != dev->tuner_type)
1198 		saa_call_all(dev, core, s_power, 0);
1199 
1200 	/* register v4l devices */
1201 	if (saa7134_no_overlay > 0)
1202 		pr_info("%s: Overlay support disabled.\n", dev->name);
1203 
1204 	dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1205 	dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1206 	dev->video_dev->lock = &dev->lock;
1207 	dev->video_dev->queue = &dev->video_vbq;
1208 	dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1209 				      V4L2_CAP_VIDEO_CAPTURE;
1210 	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1211 		dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1212 
1213 	if (saa7134_no_overlay <= 0)
1214 		dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1215 
1216 	err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1217 				    video_nr[dev->nr]);
1218 	if (err < 0) {
1219 		pr_info("%s: can't register video device\n",
1220 		       dev->name);
1221 		goto err_unregister_video;
1222 	}
1223 	pr_info("%s: registered device %s [v4l2]\n",
1224 	       dev->name, video_device_node_name(dev->video_dev));
1225 
1226 	dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1227 	dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1228 	dev->vbi_dev->lock = &dev->lock;
1229 	dev->vbi_dev->queue = &dev->vbi_vbq;
1230 	dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1231 				    V4L2_CAP_VBI_CAPTURE;
1232 	if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1233 		dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1234 
1235 	err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1236 				    vbi_nr[dev->nr]);
1237 	if (err < 0)
1238 		goto err_unregister_video;
1239 	pr_info("%s: registered device %s\n",
1240 	       dev->name, video_device_node_name(dev->vbi_dev));
1241 
1242 	if (card_has_radio(dev)) {
1243 		dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1244 		dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1245 		dev->radio_dev->lock = &dev->lock;
1246 		dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1247 		if (dev->has_rds)
1248 			dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1249 		err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1250 					    radio_nr[dev->nr]);
1251 		if (err < 0)
1252 			goto err_unregister_video;
1253 		pr_info("%s: registered device %s\n",
1254 		       dev->name, video_device_node_name(dev->radio_dev));
1255 	}
1256 
1257 #ifdef CONFIG_MEDIA_CONTROLLER
1258 	saa7134_create_entities(dev);
1259 
1260 	err = v4l2_mc_create_media_graph(dev->media_dev);
1261 	if (err) {
1262 		pr_err("failed to create media graph\n");
1263 		goto err_unregister_video;
1264 	}
1265 #endif
1266 	/* everything worked */
1267 	saa7134_devcount++;
1268 
1269 	if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1270 		saa7134_dmasound_init(dev);
1271 
1272 	request_submodules(dev);
1273 
1274 	/*
1275 	 * Do it at the end, to reduce dynamic configuration changes during
1276 	 * the device init. Yet, as request_modules() can be async, the
1277 	 * topology will likely change after load the saa7134 subdrivers.
1278 	 */
1279 #ifdef CONFIG_MEDIA_CONTROLLER
1280 	err = media_device_register(dev->media_dev);
1281 	if (err) {
1282 		media_device_cleanup(dev->media_dev);
1283 		goto err_unregister_video;
1284 	}
1285 #endif
1286 
1287 	return 0;
1288 
1289 err_unregister_video:
1290 	saa7134_unregister_video(dev);
1291 	list_del(&dev->devlist);
1292 	saa7134_i2c_unregister(dev);
1293 	free_irq(pci_dev->irq, dev);
1294 err_iounmap:
1295 	saa7134_hwfini(dev);
1296 	iounmap(dev->lmmio);
1297 err_release_mem_reg:
1298 	release_mem_region(pci_resource_start(pci_dev,0),
1299 			   pci_resource_len(pci_dev,0));
1300 err_v4l2_unregister:
1301 	v4l2_device_unregister(&dev->v4l2_dev);
1302 err_free_dev:
1303 #ifdef CONFIG_MEDIA_CONTROLLER
1304 	kfree(dev->media_dev);
1305 #endif
1306 	kfree(dev);
1307 	return err;
1308 }
1309 
1310 static void saa7134_finidev(struct pci_dev *pci_dev)
1311 {
1312 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1313 	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1314 	struct saa7134_mpeg_ops *mops;
1315 
1316 	flush_request_submodules(dev);
1317 
1318 	/* Release DMA sound modules if present */
1319 	if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1320 		saa7134_dmasound_exit(dev);
1321 	}
1322 
1323 	/* debugging ... */
1324 	if (irq_debug) {
1325 		u32 report = saa_readl(SAA7134_IRQ_REPORT);
1326 		u32 status = saa_readl(SAA7134_IRQ_STATUS);
1327 		print_irqstatus(dev,42,report,status);
1328 	}
1329 
1330 	/* disable peripheral devices */
1331 	saa_writeb(SAA7134_SPECIAL_MODE,0);
1332 
1333 	/* shutdown hardware */
1334 	saa_writel(SAA7134_IRQ1,0);
1335 	saa_writel(SAA7134_IRQ2,0);
1336 	saa_writel(SAA7134_MAIN_CTRL,0);
1337 
1338 	/* shutdown subsystems */
1339 	saa7134_hwfini(dev);
1340 
1341 	/* unregister */
1342 	mutex_lock(&saa7134_devlist_lock);
1343 	list_del(&dev->devlist);
1344 	list_for_each_entry(mops, &mops_list, next)
1345 		mpeg_ops_detach(mops, dev);
1346 	mutex_unlock(&saa7134_devlist_lock);
1347 	saa7134_devcount--;
1348 
1349 	saa7134_i2c_unregister(dev);
1350 	saa7134_unregister_video(dev);
1351 
1352 
1353 	/* the DMA sound modules should be unloaded before reaching
1354 	   this, but just in case they are still present... */
1355 	if (dev->dmasound.priv_data != NULL) {
1356 		free_irq(pci_dev->irq, &dev->dmasound);
1357 		dev->dmasound.priv_data = NULL;
1358 	}
1359 
1360 
1361 	/* release resources */
1362 	free_irq(pci_dev->irq, dev);
1363 	iounmap(dev->lmmio);
1364 	release_mem_region(pci_resource_start(pci_dev,0),
1365 			   pci_resource_len(pci_dev,0));
1366 
1367 	v4l2_device_unregister(&dev->v4l2_dev);
1368 
1369 	saa7134_unregister_media_device(dev);
1370 
1371 	/* free memory */
1372 	kfree(dev);
1373 }
1374 
1375 /* resends a current buffer in queue after resume */
1376 static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1377 						 struct saa7134_dmaqueue *q)
1378 {
1379 	struct saa7134_buf *buf, *next;
1380 
1381 	assert_spin_locked(&dev->slock);
1382 
1383 	buf  = q->curr;
1384 	next = buf;
1385 	core_dbg("buffer_requeue\n");
1386 
1387 	if (!buf)
1388 		return 0;
1389 
1390 	core_dbg("buffer_requeue : resending active buffer\n");
1391 
1392 	if (!list_empty(&q->queue))
1393 		next = list_entry(q->queue.next, struct saa7134_buf,
1394 					  entry);
1395 	buf->activate(dev, buf, next);
1396 
1397 	return 0;
1398 }
1399 
1400 static int __maybe_unused saa7134_suspend(struct device *dev_d)
1401 {
1402 	struct pci_dev *pci_dev = to_pci_dev(dev_d);
1403 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1404 	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1405 
1406 	/* disable overlay - apps should enable it explicitly on resume*/
1407 	dev->ovenable = 0;
1408 
1409 	/* Disable interrupts, DMA, and rest of the chip*/
1410 	saa_writel(SAA7134_IRQ1, 0);
1411 	saa_writel(SAA7134_IRQ2, 0);
1412 	saa_writel(SAA7134_MAIN_CTRL, 0);
1413 
1414 	dev->insuspend = 1;
1415 	synchronize_irq(pci_dev->irq);
1416 
1417 	/* ACK interrupts once more, just in case,
1418 		since the IRQ handler won't ack them anymore*/
1419 
1420 	saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1421 
1422 	/* Disable timeout timers - if we have active buffers, we will
1423 	   fill them on resume*/
1424 
1425 	del_timer(&dev->video_q.timeout);
1426 	del_timer(&dev->vbi_q.timeout);
1427 	del_timer(&dev->ts_q.timeout);
1428 
1429 	if (dev->remote && dev->remote->dev->users)
1430 		saa7134_ir_close(dev->remote->dev);
1431 
1432 	return 0;
1433 }
1434 
1435 static int __maybe_unused saa7134_resume(struct device *dev_d)
1436 {
1437 	struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1438 	struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1439 	unsigned long flags;
1440 
1441 	/* Do things that are done in saa7134_initdev ,
1442 		except of initializing memory structures.*/
1443 
1444 	saa7134_board_init1(dev);
1445 
1446 	/* saa7134_hwinit1 */
1447 	if (saa7134_boards[dev->board].video_out)
1448 		saa7134_videoport_init(dev);
1449 	if (card_has_mpeg(dev))
1450 		saa7134_ts_init_hw(dev);
1451 	if (dev->remote && dev->remote->dev->users)
1452 		saa7134_ir_open(dev->remote->dev);
1453 	saa7134_hw_enable1(dev);
1454 
1455 	msleep(100);
1456 
1457 	saa7134_board_init2(dev);
1458 
1459 	/*saa7134_hwinit2*/
1460 	saa7134_set_tvnorm_hw(dev);
1461 	saa7134_tvaudio_setmute(dev);
1462 	saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1463 	saa7134_tvaudio_init(dev);
1464 	saa7134_enable_i2s(dev);
1465 	saa7134_hw_enable2(dev);
1466 
1467 	saa7134_irq_video_signalchange(dev);
1468 
1469 	/*resume unfinished buffer(s)*/
1470 	spin_lock_irqsave(&dev->slock, flags);
1471 	saa7134_buffer_requeue(dev, &dev->video_q);
1472 	saa7134_buffer_requeue(dev, &dev->vbi_q);
1473 	saa7134_buffer_requeue(dev, &dev->ts_q);
1474 
1475 	/* FIXME: Disable DMA audio sound - temporary till proper support
1476 		  is implemented*/
1477 
1478 	dev->dmasound.dma_running = 0;
1479 
1480 	/* start DMA now*/
1481 	dev->insuspend = 0;
1482 	smp_wmb();
1483 	saa7134_set_dmabits(dev);
1484 	spin_unlock_irqrestore(&dev->slock, flags);
1485 
1486 	return 0;
1487 }
1488 
1489 /* ----------------------------------------------------------- */
1490 
1491 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1492 {
1493 	struct saa7134_dev *dev;
1494 
1495 	mutex_lock(&saa7134_devlist_lock);
1496 	list_for_each_entry(dev, &saa7134_devlist, devlist)
1497 		mpeg_ops_attach(ops, dev);
1498 	list_add_tail(&ops->next,&mops_list);
1499 	mutex_unlock(&saa7134_devlist_lock);
1500 	return 0;
1501 }
1502 
1503 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1504 {
1505 	struct saa7134_dev *dev;
1506 
1507 	mutex_lock(&saa7134_devlist_lock);
1508 	list_del(&ops->next);
1509 	list_for_each_entry(dev, &saa7134_devlist, devlist)
1510 		mpeg_ops_detach(ops, dev);
1511 	mutex_unlock(&saa7134_devlist_lock);
1512 }
1513 
1514 EXPORT_SYMBOL(saa7134_ts_register);
1515 EXPORT_SYMBOL(saa7134_ts_unregister);
1516 
1517 /* ----------------------------------------------------------- */
1518 
1519 static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1520 
1521 static struct pci_driver saa7134_pci_driver = {
1522 	.name     = "saa7134",
1523 	.id_table = saa7134_pci_tbl,
1524 	.probe    = saa7134_initdev,
1525 	.remove   = saa7134_finidev,
1526 	.driver.pm = &saa7134_pm_ops,
1527 };
1528 
1529 static int __init saa7134_init(void)
1530 {
1531 	pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1532 	       SAA7134_VERSION);
1533 	return pci_register_driver(&saa7134_pci_driver);
1534 }
1535 
1536 static void __exit saa7134_fini(void)
1537 {
1538 	pci_unregister_driver(&saa7134_pci_driver);
1539 }
1540 
1541 module_init(saa7134_init);
1542 module_exit(saa7134_fini);
1543 
1544 /* ----------------------------------------------------------- */
1545 
1546 EXPORT_SYMBOL(saa7134_set_gpio);
1547 EXPORT_SYMBOL(saa7134_boards);
1548 
1549 /* ----------------- for the DMA sound modules --------------- */
1550 
1551 EXPORT_SYMBOL(saa7134_dmasound_init);
1552 EXPORT_SYMBOL(saa7134_dmasound_exit);
1553 EXPORT_SYMBOL(saa7134_pgtable_free);
1554 EXPORT_SYMBOL(saa7134_pgtable_build);
1555 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1556 EXPORT_SYMBOL(saa7134_set_dmabits);
1557