treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
[sfrench/cifs-2.6.git] / drivers / media / pci / saa7134 / 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
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 = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
227         if (NULL == cpu)
228                 return -ENOMEM;
229         pt->size = SAA7134_PGTABLE_SIZE;
230         pt->cpu  = cpu;
231         pt->dma  = dma_addr;
232         return 0;
233 }
234
235 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
236                           struct scatterlist *list, unsigned int length,
237                           unsigned int startpage)
238 {
239         __le32        *ptr;
240         unsigned int  i, p;
241
242         BUG_ON(NULL == pt || NULL == pt->cpu);
243
244         ptr = pt->cpu + startpage;
245         for (i = 0; i < length; i++, list = sg_next(list)) {
246                 for (p = 0; p * 4096 < list->length; p++, ptr++)
247                         *ptr = cpu_to_le32(sg_dma_address(list) +
248                                                 list->offset + p * 4096);
249         }
250         return 0;
251 }
252
253 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
254 {
255         if (NULL == pt->cpu)
256                 return;
257         pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
258         pt->cpu = NULL;
259 }
260
261 /* ------------------------------------------------------------------ */
262
263 int saa7134_buffer_queue(struct saa7134_dev *dev,
264                          struct saa7134_dmaqueue *q,
265                          struct saa7134_buf *buf)
266 {
267         struct saa7134_buf *next = NULL;
268         unsigned long flags;
269
270         spin_lock_irqsave(&dev->slock, flags);
271         core_dbg("buffer_queue %p\n", buf);
272         if (NULL == q->curr) {
273                 if (!q->need_two) {
274                         q->curr = buf;
275                         buf->activate(dev, buf, NULL);
276                 } else if (list_empty(&q->queue)) {
277                         list_add_tail(&buf->entry, &q->queue);
278                 } else {
279                         next = list_entry(q->queue.next, struct saa7134_buf,
280                                           entry);
281                         q->curr = buf;
282                         buf->activate(dev, buf, next);
283                 }
284         } else {
285                 list_add_tail(&buf->entry, &q->queue);
286         }
287         spin_unlock_irqrestore(&dev->slock, flags);
288         return 0;
289 }
290
291 void saa7134_buffer_finish(struct saa7134_dev *dev,
292                            struct saa7134_dmaqueue *q,
293                            unsigned int state)
294 {
295         core_dbg("buffer_finish %p\n", q->curr);
296
297         /* finish current buffer */
298         q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
299         q->curr->vb2.sequence = q->seq_nr++;
300         vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
301         q->curr = NULL;
302 }
303
304 void saa7134_buffer_next(struct saa7134_dev *dev,
305                          struct saa7134_dmaqueue *q)
306 {
307         struct saa7134_buf *buf,*next = NULL;
308
309         assert_spin_locked(&dev->slock);
310         BUG_ON(NULL != q->curr);
311
312         if (!list_empty(&q->queue)) {
313                 /* activate next one from queue */
314                 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
315                 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
316                         buf, q->queue.prev, q->queue.next);
317                 list_del(&buf->entry);
318                 if (!list_empty(&q->queue))
319                         next = list_entry(q->queue.next, struct saa7134_buf, entry);
320                 q->curr = buf;
321                 buf->activate(dev, buf, next);
322                 core_dbg("buffer_next #2 prev=%p/next=%p\n",
323                         q->queue.prev, q->queue.next);
324         } else {
325                 /* nothing to do -- just stop DMA */
326                 core_dbg("buffer_next %p\n", NULL);
327                 saa7134_set_dmabits(dev);
328                 del_timer(&q->timeout);
329         }
330 }
331
332 void saa7134_buffer_timeout(struct timer_list *t)
333 {
334         struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
335         struct saa7134_dev *dev = q->dev;
336         unsigned long flags;
337
338         spin_lock_irqsave(&dev->slock, flags);
339
340         /* try to reset the hardware (SWRST) */
341         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
342         saa_writeb(SAA7134_REGION_ENABLE, 0x80);
343         saa_writeb(SAA7134_REGION_ENABLE, 0x00);
344
345         /* flag current buffer as failed,
346            try to start over with the next one. */
347         if (q->curr) {
348                 core_dbg("timeout on %p\n", q->curr);
349                 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
350         }
351         saa7134_buffer_next(dev, q);
352         spin_unlock_irqrestore(&dev->slock, flags);
353 }
354
355 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
356 {
357         unsigned long flags;
358         struct list_head *pos, *n;
359         struct saa7134_buf *tmp;
360
361         spin_lock_irqsave(&dev->slock, flags);
362         if (!list_empty(&q->queue)) {
363                 list_for_each_safe(pos, n, &q->queue) {
364                          tmp = list_entry(pos, struct saa7134_buf, entry);
365                          vb2_buffer_done(&tmp->vb2.vb2_buf,
366                                          VB2_BUF_STATE_ERROR);
367                          list_del(pos);
368                          tmp = NULL;
369                 }
370         }
371         spin_unlock_irqrestore(&dev->slock, flags);
372         saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
373 }
374 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
375
376 /* ------------------------------------------------------------------ */
377
378 int saa7134_set_dmabits(struct saa7134_dev *dev)
379 {
380         u32 split, task=0, ctrl=0, irq=0;
381         enum v4l2_field cap = V4L2_FIELD_ANY;
382         enum v4l2_field ov  = V4L2_FIELD_ANY;
383
384         assert_spin_locked(&dev->slock);
385
386         if (dev->insuspend)
387                 return 0;
388
389         /* video capture -- dma 0 + video task A */
390         if (dev->video_q.curr) {
391                 task |= 0x01;
392                 ctrl |= SAA7134_MAIN_CTRL_TE0;
393                 irq  |= SAA7134_IRQ1_INTE_RA0_1 |
394                         SAA7134_IRQ1_INTE_RA0_0;
395                 cap = dev->field;
396         }
397
398         /* video capture -- dma 1+2 (planar modes) */
399         if (dev->video_q.curr && dev->fmt->planar) {
400                 ctrl |= SAA7134_MAIN_CTRL_TE4 |
401                         SAA7134_MAIN_CTRL_TE5;
402         }
403
404         /* screen overlay -- dma 0 + video task B */
405         if (dev->ovenable) {
406                 task |= 0x10;
407                 ctrl |= SAA7134_MAIN_CTRL_TE1;
408                 ov = dev->ovfield;
409         }
410
411         /* vbi capture -- dma 0 + vbi task A+B */
412         if (dev->vbi_q.curr) {
413                 task |= 0x22;
414                 ctrl |= SAA7134_MAIN_CTRL_TE2 |
415                         SAA7134_MAIN_CTRL_TE3;
416                 irq  |= SAA7134_IRQ1_INTE_RA0_7 |
417                         SAA7134_IRQ1_INTE_RA0_6 |
418                         SAA7134_IRQ1_INTE_RA0_5 |
419                         SAA7134_IRQ1_INTE_RA0_4;
420         }
421
422         /* audio capture -- dma 3 */
423         if (dev->dmasound.dma_running) {
424                 ctrl |= SAA7134_MAIN_CTRL_TE6;
425                 irq  |= SAA7134_IRQ1_INTE_RA3_1 |
426                         SAA7134_IRQ1_INTE_RA3_0;
427         }
428
429         /* TS capture -- dma 5 */
430         if (dev->ts_q.curr) {
431                 ctrl |= SAA7134_MAIN_CTRL_TE5;
432                 irq  |= SAA7134_IRQ1_INTE_RA2_1 |
433                         SAA7134_IRQ1_INTE_RA2_0;
434         }
435
436         /* set task conditions + field handling */
437         if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
438                 /* default config -- use full frames */
439                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
440                 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
441                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x02);
442                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x02);
443                 split = 0;
444         } else {
445                 /* split fields between tasks */
446                 if (V4L2_FIELD_TOP == cap) {
447                         /* odd A, even B, repeat */
448                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
449                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
450                 } else {
451                         /* odd B, even A, repeat */
452                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
453                         saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
454                 }
455                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A),  0x01);
456                 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B),  0x01);
457                 split = 1;
458         }
459
460         /* irqs */
461         saa_writeb(SAA7134_REGION_ENABLE, task);
462         saa_writel(SAA7134_IRQ1,          irq);
463         saa_andorl(SAA7134_MAIN_CTRL,
464                    SAA7134_MAIN_CTRL_TE0 |
465                    SAA7134_MAIN_CTRL_TE1 |
466                    SAA7134_MAIN_CTRL_TE2 |
467                    SAA7134_MAIN_CTRL_TE3 |
468                    SAA7134_MAIN_CTRL_TE4 |
469                    SAA7134_MAIN_CTRL_TE5 |
470                    SAA7134_MAIN_CTRL_TE6,
471                    ctrl);
472         core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
473                 task, ctrl, irq, split ? "no" : "yes");
474
475         return 0;
476 }
477
478 /* ------------------------------------------------------------------ */
479 /* IRQ handler + helpers                                              */
480
481 static char *irqbits[] = {
482         "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
483         "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
484         "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
485         "GPIO16", "GPIO18", "GPIO22", "GPIO23"
486 };
487 #define IRQBITS ARRAY_SIZE(irqbits)
488
489 static void print_irqstatus(struct saa7134_dev *dev, int loop,
490                             unsigned long report, unsigned long status)
491 {
492         unsigned int i;
493
494         irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
495                 loop, jiffies, report, status);
496         for (i = 0; i < IRQBITS; i++) {
497                 if (!(report & (1 << i)))
498                         continue;
499                 pr_cont(" %s", irqbits[i]);
500         }
501         if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
502                 pr_cont(" | RA0=%s,%s,%s,%ld",
503                         (status & 0x40) ? "vbi"  : "video",
504                         (status & 0x20) ? "b"    : "a",
505                         (status & 0x10) ? "odd"  : "even",
506                         (status & 0x0f));
507         }
508         pr_cont("\n");
509 }
510
511 static irqreturn_t saa7134_irq(int irq, void *dev_id)
512 {
513         struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
514         unsigned long report,status;
515         int loop, handled = 0;
516
517         if (dev->insuspend)
518                 goto out;
519
520         for (loop = 0; loop < 10; loop++) {
521                 report = saa_readl(SAA7134_IRQ_REPORT);
522                 status = saa_readl(SAA7134_IRQ_STATUS);
523
524                 /* If dmasound support is active and we get a sound report,
525                  * mask out the report and let the saa7134-alsa module deal
526                  * with it */
527                 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
528                         (dev->dmasound.priv_data != NULL) )
529                 {
530                         irq_dbg(2, "preserving DMA sound interrupt\n");
531                         report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
532                 }
533
534                 if (0 == report) {
535                         irq_dbg(2, "no (more) work\n");
536                         goto out;
537                 }
538
539                 handled = 1;
540                 saa_writel(SAA7134_IRQ_REPORT,report);
541                 if (irq_debug)
542                         print_irqstatus(dev,loop,report,status);
543
544
545                 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
546                         (report & SAA7134_IRQ_REPORT_INTL))
547                                 saa7134_irq_video_signalchange(dev);
548
549
550                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
551                     (status & 0x60) == 0)
552                         saa7134_irq_video_done(dev,status);
553
554                 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
555                     (status & 0x40) == 0x40)
556                         saa7134_irq_vbi_done(dev,status);
557
558                 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
559                     card_has_mpeg(dev)) {
560                         if (dev->mops->irq_ts_done != NULL)
561                                 dev->mops->irq_ts_done(dev, status);
562                         else
563                                 saa7134_irq_ts_done(dev, status);
564                 }
565
566                 if (report & SAA7134_IRQ_REPORT_GPIO16) {
567                         switch (dev->has_remote) {
568                                 case SAA7134_REMOTE_GPIO:
569                                         if (!dev->remote)
570                                                 break;
571                                         if  (dev->remote->mask_keydown & 0x10000) {
572                                                 saa7134_input_irq(dev);
573                                         }
574                                         break;
575
576                                 case SAA7134_REMOTE_I2C:
577                                         break;                  /* FIXME: invoke I2C get_key() */
578
579                                 default:                        /* GPIO16 not used by IR remote */
580                                         break;
581                         }
582                 }
583
584                 if (report & SAA7134_IRQ_REPORT_GPIO18) {
585                         switch (dev->has_remote) {
586                                 case SAA7134_REMOTE_GPIO:
587                                         if (!dev->remote)
588                                                 break;
589                                         if ((dev->remote->mask_keydown & 0x40000) ||
590                                             (dev->remote->mask_keyup & 0x40000)) {
591                                                 saa7134_input_irq(dev);
592                                         }
593                                         break;
594
595                                 case SAA7134_REMOTE_I2C:
596                                         break;                  /* FIXME: invoke I2C get_key() */
597
598                                 default:                        /* GPIO18 not used by IR remote */
599                                         break;
600                         }
601                 }
602         }
603
604         if (10 == loop) {
605                 print_irqstatus(dev,loop,report,status);
606                 if (report & SAA7134_IRQ_REPORT_PE) {
607                         /* disable all parity error */
608                         pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
609                                 dev->name);
610                         saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
611                 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
612                         /* disable gpio16 IRQ */
613                         pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
614                                 dev->name);
615                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
616                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
617                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
618                         /* disable gpio18 IRQs */
619                         pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
620                                 dev->name);
621                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
622                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
623                 } else {
624                         /* disable all irqs */
625                         pr_warn("%s/irq: looping -- clearing all enable bits\n",
626                                 dev->name);
627                         saa_writel(SAA7134_IRQ1,0);
628                         saa_writel(SAA7134_IRQ2,0);
629                 }
630         }
631
632  out:
633         return IRQ_RETVAL(handled);
634 }
635
636 /* ------------------------------------------------------------------ */
637
638 /* early init (no i2c, no irq) */
639
640 static int saa7134_hw_enable1(struct saa7134_dev *dev)
641 {
642         /* RAM FIFO config */
643         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
644         saa_writel(SAA7134_THRESHOULD, 0x02020202);
645
646         /* enable audio + video processing */
647         saa_writel(SAA7134_MAIN_CTRL,
648                         SAA7134_MAIN_CTRL_VPLLE |
649                         SAA7134_MAIN_CTRL_APLLE |
650                         SAA7134_MAIN_CTRL_EXOSC |
651                         SAA7134_MAIN_CTRL_EVFE1 |
652                         SAA7134_MAIN_CTRL_EVFE2 |
653                         SAA7134_MAIN_CTRL_ESFE  |
654                         SAA7134_MAIN_CTRL_EBDAC);
655
656         /*
657         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
658         * OSS initialization writes to registers via the audio DSP; these
659         * writes will fail unless the audio clock has been started.  At worst,
660         * audio will not work.
661         */
662
663         /* enable peripheral devices */
664         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
665
666         /* set vertical line numbering start (vbi needs this) */
667         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
668
669         return 0;
670 }
671
672 static int saa7134_hwinit1(struct saa7134_dev *dev)
673 {
674         core_dbg("hwinit1\n");
675
676         saa_writel(SAA7134_IRQ1, 0);
677         saa_writel(SAA7134_IRQ2, 0);
678
679         /* Clear any stale IRQ reports */
680         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
681
682         mutex_init(&dev->lock);
683         spin_lock_init(&dev->slock);
684
685         saa7134_track_gpio(dev,"pre-init");
686         saa7134_video_init1(dev);
687         saa7134_vbi_init1(dev);
688         if (card_has_mpeg(dev))
689                 saa7134_ts_init1(dev);
690         saa7134_input_init1(dev);
691
692         saa7134_hw_enable1(dev);
693
694         return 0;
695 }
696
697 /* late init (with i2c + irq) */
698 static int saa7134_hw_enable2(struct saa7134_dev *dev)
699 {
700
701         unsigned int irq2_mask;
702
703         /* enable IRQ's */
704         irq2_mask =
705                 SAA7134_IRQ2_INTE_DEC3    |
706                 SAA7134_IRQ2_INTE_DEC2    |
707                 SAA7134_IRQ2_INTE_DEC1    |
708                 SAA7134_IRQ2_INTE_DEC0    |
709                 SAA7134_IRQ2_INTE_PE      |
710                 SAA7134_IRQ2_INTE_AR;
711
712         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
713                 if (dev->remote->mask_keydown & 0x10000)
714                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
715                 else {          /* Allow enabling both IRQ edge triggers */
716                         if (dev->remote->mask_keydown & 0x40000)
717                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
718                         if (dev->remote->mask_keyup & 0x40000)
719                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
720                 }
721         }
722
723         if (dev->has_remote == SAA7134_REMOTE_I2C) {
724                 request_module("ir-kbd-i2c");
725         }
726
727         saa_writel(SAA7134_IRQ1, 0);
728         saa_writel(SAA7134_IRQ2, irq2_mask);
729
730         return 0;
731 }
732
733 static int saa7134_hwinit2(struct saa7134_dev *dev)
734 {
735
736         core_dbg("hwinit2\n");
737
738         saa7134_video_init2(dev);
739         saa7134_tvaudio_init2(dev);
740
741         saa7134_hw_enable2(dev);
742
743         return 0;
744 }
745
746
747 /* shutdown */
748 static int saa7134_hwfini(struct saa7134_dev *dev)
749 {
750         core_dbg("hwfini\n");
751
752         if (card_has_mpeg(dev))
753                 saa7134_ts_fini(dev);
754         saa7134_input_fini(dev);
755         saa7134_vbi_fini(dev);
756         saa7134_tvaudio_fini(dev);
757         saa7134_video_fini(dev);
758         return 0;
759 }
760
761 static void must_configure_manually(int has_eeprom)
762 {
763         unsigned int i,p;
764
765         if (!has_eeprom)
766                 pr_warn("saa7134: <rant>\n"
767                         "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
768                         "saa7134:  cents for a eeprom, thus your pci board has no\n"
769                         "saa7134:  subsystem ID and I can't identify it automatically\n"
770                         "saa7134: </rant>\n"
771                         "saa7134: I feel better now.  Ok, here are the good news:\n"
772                         "saa7134: You can use the card=<nr> insmod option to specify\n"
773                         "saa7134: which board do you have.  The list:\n");
774         else
775                 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
776                         "saa7134: insmod option to specify which board do you have, but this is\n"
777                         "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
778                         "saa7134: for support at linux-media@vger.kernel.org.\n"
779                         "saa7134: The supported cards are:\n");
780
781         for (i = 0; i < saa7134_bcount; i++) {
782                 pr_warn("saa7134:   card=%d -> %-40.40s",
783                        i,saa7134_boards[i].name);
784                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
785                         if (saa7134_pci_tbl[p].driver_data != i)
786                                 continue;
787                         pr_cont(" %04x:%04x",
788                                saa7134_pci_tbl[p].subvendor,
789                                saa7134_pci_tbl[p].subdevice);
790                 }
791                 pr_cont("\n");
792         }
793 }
794
795 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
796 {
797
798 #ifdef CONFIG_MEDIA_CONTROLLER
799         if (!dev->media_dev)
800                 return;
801         media_device_unregister(dev->media_dev);
802         media_device_cleanup(dev->media_dev);
803         kfree(dev->media_dev);
804         dev->media_dev = NULL;
805 #endif
806 }
807
808 static void saa7134_media_release(struct saa7134_dev *dev)
809 {
810 #ifdef CONFIG_MEDIA_CONTROLLER
811         int i;
812
813         for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
814                 media_device_unregister_entity(&dev->input_ent[i]);
815 #endif
816 }
817
818 #if defined(CONFIG_MEDIA_CONTROLLER)
819 static void saa7134_create_entities(struct saa7134_dev *dev)
820 {
821         int ret, i;
822         struct media_entity *entity;
823         struct media_entity *decoder = NULL;
824
825         /* Check if it is using an external analog TV demod */
826         media_device_for_each_entity(entity, dev->media_dev) {
827                 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
828                         decoder = entity;
829                         break;
830                 }
831         }
832
833         /*
834          * saa713x is not using an external ATV demod.
835          * Register the internal one
836          */
837         if (!decoder) {
838                 dev->demod.name = "saa713x";
839                 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
840                 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
841                 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
842                 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
843                 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
844
845                 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
846                                              dev->demod_pad);
847                 if (ret < 0)
848                         pr_err("failed to initialize demod pad!\n");
849
850                 ret = media_device_register_entity(dev->media_dev, &dev->demod);
851                 if (ret < 0)
852                         pr_err("failed to register demod entity!\n");
853
854                 dev->decoder = &dev->demod;
855         } else {
856                 dev->decoder = decoder;
857         }
858
859         /* Initialize Video, VBI and Radio pads */
860         dev->video_pad.flags = MEDIA_PAD_FL_SINK;
861         ret = media_entity_pads_init(&dev->video_dev->entity, 1,
862                                      &dev->video_pad);
863         if (ret < 0)
864                 pr_err("failed to initialize video media entity!\n");
865
866         dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
867         ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
868                                         &dev->vbi_pad);
869         if (ret < 0)
870                 pr_err("failed to initialize vbi media entity!\n");
871
872         /* Create entities for each input connector */
873         for (i = 0; i < SAA7134_INPUT_MAX; i++) {
874                 struct media_entity *ent = &dev->input_ent[i];
875                 struct saa7134_input *in = &card_in(dev, i);
876
877                 if (in->type == SAA7134_NO_INPUT)
878                         break;
879
880                 /* This input uses the S-Video connector */
881                 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
882                         continue;
883
884                 ent->name = saa7134_input_name[in->type];
885                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
886                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
887
888                 switch (in->type) {
889                 case SAA7134_INPUT_COMPOSITE:
890                 case SAA7134_INPUT_COMPOSITE0:
891                 case SAA7134_INPUT_COMPOSITE1:
892                 case SAA7134_INPUT_COMPOSITE2:
893                 case SAA7134_INPUT_COMPOSITE3:
894                 case SAA7134_INPUT_COMPOSITE4:
895                         ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
896                         break;
897                 case SAA7134_INPUT_SVIDEO:
898                 case SAA7134_INPUT_SVIDEO0:
899                 case SAA7134_INPUT_SVIDEO1:
900                         ent->function = MEDIA_ENT_F_CONN_SVIDEO;
901                         break;
902                 default:
903                         /*
904                          * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
905                          *
906                          * Please notice that neither SAA7134_INPUT_MUTE or
907                          * SAA7134_INPUT_RADIO are defined at
908                          * saa7134_board.input.
909                          */
910                         ent->function = MEDIA_ENT_F_CONN_RF;
911                         break;
912                 }
913
914                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
915                 if (ret < 0)
916                         pr_err("failed to initialize input pad[%d]!\n", i);
917
918                 ret = media_device_register_entity(dev->media_dev, ent);
919                 if (ret < 0)
920                         pr_err("failed to register input entity %d!\n", i);
921         }
922
923         /* Create input for Radio RF connector */
924         if (card_has_radio(dev)) {
925                 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
926                 struct media_entity *ent = &dev->input_ent[i];
927
928                 ent->name = saa7134_input_name[in->type];
929                 ent->flags = MEDIA_ENT_FL_CONNECTOR;
930                 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
931                 ent->function = MEDIA_ENT_F_CONN_RF;
932
933                 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
934                 if (ret < 0)
935                         pr_err("failed to initialize input pad[%d]!\n", i);
936
937                 ret = media_device_register_entity(dev->media_dev, ent);
938                 if (ret < 0)
939                         pr_err("failed to register input entity %d!\n", i);
940         }
941 }
942 #endif
943
944 static struct video_device *vdev_init(struct saa7134_dev *dev,
945                                       struct video_device *template,
946                                       char *type)
947 {
948         struct video_device *vfd;
949
950         vfd = video_device_alloc();
951         if (NULL == vfd)
952                 return NULL;
953         *vfd = *template;
954         vfd->v4l2_dev  = &dev->v4l2_dev;
955         vfd->release = video_device_release;
956         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
957                  dev->name, type, saa7134_boards[dev->board].name);
958         video_set_drvdata(vfd, dev);
959         return vfd;
960 }
961
962 static void saa7134_unregister_video(struct saa7134_dev *dev)
963 {
964         saa7134_media_release(dev);
965
966         if (dev->video_dev) {
967                 if (video_is_registered(dev->video_dev))
968                         video_unregister_device(dev->video_dev);
969                 else
970                         video_device_release(dev->video_dev);
971                 dev->video_dev = NULL;
972         }
973         if (dev->vbi_dev) {
974                 if (video_is_registered(dev->vbi_dev))
975                         video_unregister_device(dev->vbi_dev);
976                 else
977                         video_device_release(dev->vbi_dev);
978                 dev->vbi_dev = NULL;
979         }
980         if (dev->radio_dev) {
981                 if (video_is_registered(dev->radio_dev))
982                         video_unregister_device(dev->radio_dev);
983                 else
984                         video_device_release(dev->radio_dev);
985                 dev->radio_dev = NULL;
986         }
987 }
988
989 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
990                             struct saa7134_dev *dev)
991 {
992         int err;
993
994         if (NULL != dev->mops)
995                 return;
996         if (saa7134_boards[dev->board].mpeg != ops->type)
997                 return;
998         err = ops->init(dev);
999         if (0 != err)
1000                 return;
1001         dev->mops = ops;
1002 }
1003
1004 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1005                             struct saa7134_dev *dev)
1006 {
1007         if (NULL == dev->mops)
1008                 return;
1009         if (dev->mops != ops)
1010                 return;
1011         dev->mops->fini(dev);
1012         dev->mops = NULL;
1013 }
1014
1015 static int saa7134_initdev(struct pci_dev *pci_dev,
1016                            const struct pci_device_id *pci_id)
1017 {
1018         struct saa7134_dev *dev;
1019         struct saa7134_mpeg_ops *mops;
1020         int err;
1021
1022         if (saa7134_devcount == SAA7134_MAXBOARDS)
1023                 return -ENOMEM;
1024
1025         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1026         if (NULL == dev)
1027                 return -ENOMEM;
1028
1029         dev->nr = saa7134_devcount;
1030         sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1031
1032 #ifdef CONFIG_MEDIA_CONTROLLER
1033         dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1034         if (!dev->media_dev) {
1035                 err = -ENOMEM;
1036                 goto fail0;
1037         }
1038         media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1039         dev->v4l2_dev.mdev = dev->media_dev;
1040 #endif
1041
1042         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1043         if (err)
1044                 goto fail0;
1045
1046         /* pci init */
1047         dev->pci = pci_dev;
1048         if (pci_enable_device(pci_dev)) {
1049                 err = -EIO;
1050                 goto fail1;
1051         }
1052
1053         /* pci quirks */
1054         if (pci_pci_problems) {
1055                 if (pci_pci_problems & PCIPCI_TRITON)
1056                         pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1057                 if (pci_pci_problems & PCIPCI_NATOMA)
1058                         pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1059                 if (pci_pci_problems & PCIPCI_VIAETBF)
1060                         pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1061                 if (pci_pci_problems & PCIPCI_VSFX)
1062                         pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1063 #ifdef PCIPCI_ALIMAGIK
1064                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1065                         pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1066                                dev->name);
1067                         latency = 0x0A;
1068                 }
1069 #endif
1070                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1071                         pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1072                                 dev->name);
1073                         if (!saa7134_no_overlay) {
1074                                 pr_info("%s: quirk: overlay mode will be disabled.\n",
1075                                                 dev->name);
1076                                 saa7134_no_overlay = 1;
1077                         } else {
1078                                 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1079                                                 dev->name);
1080                         }
1081                 }
1082         }
1083         if (UNSET != latency) {
1084                 pr_info("%s: setting pci latency timer to %d\n",
1085                        dev->name,latency);
1086                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1087         }
1088
1089         /* print pci info */
1090         dev->pci_rev = pci_dev->revision;
1091         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
1092         pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1093                 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1094                 dev->pci_lat,
1095                 (unsigned long long)pci_resource_start(pci_dev, 0));
1096         pci_set_master(pci_dev);
1097         err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1098         if (err) {
1099                 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1100                 goto fail1;
1101         }
1102
1103         /* board config */
1104         dev->board = pci_id->driver_data;
1105         if ((unsigned)card[dev->nr] < saa7134_bcount)
1106                 dev->board = card[dev->nr];
1107         if (SAA7134_BOARD_UNKNOWN == dev->board)
1108                 must_configure_manually(0);
1109         else if (SAA7134_BOARD_NOAUTO == dev->board) {
1110                 must_configure_manually(1);
1111                 dev->board = SAA7134_BOARD_UNKNOWN;
1112         }
1113         dev->autodetected = card[dev->nr] != dev->board;
1114         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1115         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1116         dev->radio_type = saa7134_boards[dev->board].radio_type;
1117         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1118         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1119         if (UNSET != tuner[dev->nr])
1120                 dev->tuner_type = tuner[dev->nr];
1121         pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1122                 dev->name,pci_dev->subsystem_vendor,
1123                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1124                 dev->board, dev->autodetected ?
1125                 "autodetected" : "insmod option");
1126
1127         /* get mmio */
1128         if (!request_mem_region(pci_resource_start(pci_dev,0),
1129                                 pci_resource_len(pci_dev,0),
1130                                 dev->name)) {
1131                 err = -EBUSY;
1132                 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1133                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1134                 goto fail1;
1135         }
1136         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1137                              pci_resource_len(pci_dev, 0));
1138         dev->bmmio = (__u8 __iomem *)dev->lmmio;
1139         if (NULL == dev->lmmio) {
1140                 err = -EIO;
1141                 pr_err("%s: can't ioremap() MMIO memory\n",
1142                        dev->name);
1143                 goto fail2;
1144         }
1145
1146         /* initialize hardware #1 */
1147         saa7134_board_init1(dev);
1148         saa7134_hwinit1(dev);
1149
1150         /* get irq */
1151         err = request_irq(pci_dev->irq, saa7134_irq,
1152                           IRQF_SHARED, dev->name, dev);
1153         if (err < 0) {
1154                 pr_err("%s: can't get IRQ %d\n",
1155                        dev->name,pci_dev->irq);
1156                 goto fail3;
1157         }
1158
1159         /* wait a bit, register i2c bus */
1160         msleep(100);
1161         saa7134_i2c_register(dev);
1162         saa7134_board_init2(dev);
1163
1164         saa7134_hwinit2(dev);
1165
1166         /* load i2c helpers */
1167         if (card_is_empress(dev)) {
1168                 dev->empress_sd =
1169                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1170                                 "saa6752hs",
1171                                 saa7134_boards[dev->board].empress_addr, NULL);
1172
1173                 if (dev->empress_sd)
1174                         dev->empress_sd->grp_id = GRP_EMPRESS;
1175         }
1176
1177         if (saa7134_boards[dev->board].rds_addr) {
1178                 struct v4l2_subdev *sd;
1179
1180                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1181                                 &dev->i2c_adap, "saa6588",
1182                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1183                 if (sd) {
1184                         pr_info("%s: found RDS decoder\n", dev->name);
1185                         dev->has_rds = 1;
1186                 }
1187         }
1188
1189         mutex_lock(&saa7134_devlist_lock);
1190         list_for_each_entry(mops, &mops_list, next)
1191                 mpeg_ops_attach(mops, dev);
1192         list_add_tail(&dev->devlist, &saa7134_devlist);
1193         mutex_unlock(&saa7134_devlist_lock);
1194
1195         /* check for signal */
1196         saa7134_irq_video_signalchange(dev);
1197
1198         if (TUNER_ABSENT != dev->tuner_type)
1199                 saa_call_all(dev, core, s_power, 0);
1200
1201         /* register v4l devices */
1202         if (saa7134_no_overlay > 0)
1203                 pr_info("%s: Overlay support disabled.\n", dev->name);
1204
1205         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1206         dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1207         dev->video_dev->lock = &dev->lock;
1208         dev->video_dev->queue = &dev->video_vbq;
1209         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1210                                     video_nr[dev->nr]);
1211         if (err < 0) {
1212                 pr_info("%s: can't register video device\n",
1213                        dev->name);
1214                 goto fail4;
1215         }
1216         pr_info("%s: registered device %s [v4l2]\n",
1217                dev->name, video_device_node_name(dev->video_dev));
1218
1219         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1220         dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1221         dev->vbi_dev->lock = &dev->lock;
1222         dev->vbi_dev->queue = &dev->vbi_vbq;
1223
1224         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1225                                     vbi_nr[dev->nr]);
1226         if (err < 0)
1227                 goto fail4;
1228         pr_info("%s: registered device %s\n",
1229                dev->name, video_device_node_name(dev->vbi_dev));
1230
1231         if (card_has_radio(dev)) {
1232                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1233                 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1234                 dev->radio_dev->lock = &dev->lock;
1235                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1236                                             radio_nr[dev->nr]);
1237                 if (err < 0)
1238                         goto fail4;
1239                 pr_info("%s: registered device %s\n",
1240                        dev->name, video_device_node_name(dev->radio_dev));
1241         }
1242
1243 #ifdef CONFIG_MEDIA_CONTROLLER
1244         saa7134_create_entities(dev);
1245
1246         err = v4l2_mc_create_media_graph(dev->media_dev);
1247         if (err) {
1248                 pr_err("failed to create media graph\n");
1249                 goto fail4;
1250         }
1251 #endif
1252         /* everything worked */
1253         saa7134_devcount++;
1254
1255         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1256                 saa7134_dmasound_init(dev);
1257
1258         request_submodules(dev);
1259
1260         /*
1261          * Do it at the end, to reduce dynamic configuration changes during
1262          * the device init. Yet, as request_modules() can be async, the
1263          * topology will likely change after load the saa7134 subdrivers.
1264          */
1265 #ifdef CONFIG_MEDIA_CONTROLLER
1266         err = media_device_register(dev->media_dev);
1267         if (err)
1268                 goto fail4;
1269 #endif
1270
1271         return 0;
1272
1273  fail4:
1274         saa7134_unregister_video(dev);
1275         saa7134_i2c_unregister(dev);
1276         free_irq(pci_dev->irq, dev);
1277  fail3:
1278         saa7134_hwfini(dev);
1279         iounmap(dev->lmmio);
1280  fail2:
1281         release_mem_region(pci_resource_start(pci_dev,0),
1282                            pci_resource_len(pci_dev,0));
1283  fail1:
1284         v4l2_device_unregister(&dev->v4l2_dev);
1285  fail0:
1286 #ifdef CONFIG_MEDIA_CONTROLLER
1287         kfree(dev->media_dev);
1288 #endif
1289         kfree(dev);
1290         return err;
1291 }
1292
1293 static void saa7134_finidev(struct pci_dev *pci_dev)
1294 {
1295         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1296         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1297         struct saa7134_mpeg_ops *mops;
1298
1299         flush_request_submodules(dev);
1300
1301         /* Release DMA sound modules if present */
1302         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1303                 saa7134_dmasound_exit(dev);
1304         }
1305
1306         /* debugging ... */
1307         if (irq_debug) {
1308                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1309                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1310                 print_irqstatus(dev,42,report,status);
1311         }
1312
1313         /* disable peripheral devices */
1314         saa_writeb(SAA7134_SPECIAL_MODE,0);
1315
1316         /* shutdown hardware */
1317         saa_writel(SAA7134_IRQ1,0);
1318         saa_writel(SAA7134_IRQ2,0);
1319         saa_writel(SAA7134_MAIN_CTRL,0);
1320
1321         /* shutdown subsystems */
1322         saa7134_hwfini(dev);
1323
1324         /* unregister */
1325         mutex_lock(&saa7134_devlist_lock);
1326         list_del(&dev->devlist);
1327         list_for_each_entry(mops, &mops_list, next)
1328                 mpeg_ops_detach(mops, dev);
1329         mutex_unlock(&saa7134_devlist_lock);
1330         saa7134_devcount--;
1331
1332         saa7134_i2c_unregister(dev);
1333         saa7134_unregister_video(dev);
1334
1335
1336         /* the DMA sound modules should be unloaded before reaching
1337            this, but just in case they are still present... */
1338         if (dev->dmasound.priv_data != NULL) {
1339                 free_irq(pci_dev->irq, &dev->dmasound);
1340                 dev->dmasound.priv_data = NULL;
1341         }
1342
1343
1344         /* release resources */
1345         free_irq(pci_dev->irq, dev);
1346         iounmap(dev->lmmio);
1347         release_mem_region(pci_resource_start(pci_dev,0),
1348                            pci_resource_len(pci_dev,0));
1349
1350         v4l2_device_unregister(&dev->v4l2_dev);
1351
1352         saa7134_unregister_media_device(dev);
1353
1354         /* free memory */
1355         kfree(dev);
1356 }
1357
1358 #ifdef CONFIG_PM
1359
1360 /* resends a current buffer in queue after resume */
1361 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1362                                   struct saa7134_dmaqueue *q)
1363 {
1364         struct saa7134_buf *buf, *next;
1365
1366         assert_spin_locked(&dev->slock);
1367
1368         buf  = q->curr;
1369         next = buf;
1370         core_dbg("buffer_requeue\n");
1371
1372         if (!buf)
1373                 return 0;
1374
1375         core_dbg("buffer_requeue : resending active buffer\n");
1376
1377         if (!list_empty(&q->queue))
1378                 next = list_entry(q->queue.next, struct saa7134_buf,
1379                                           entry);
1380         buf->activate(dev, buf, next);
1381
1382         return 0;
1383 }
1384
1385 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1386 {
1387         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1388         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1389
1390         /* disable overlay - apps should enable it explicitly on resume*/
1391         dev->ovenable = 0;
1392
1393         /* Disable interrupts, DMA, and rest of the chip*/
1394         saa_writel(SAA7134_IRQ1, 0);
1395         saa_writel(SAA7134_IRQ2, 0);
1396         saa_writel(SAA7134_MAIN_CTRL, 0);
1397
1398         dev->insuspend = 1;
1399         synchronize_irq(pci_dev->irq);
1400
1401         /* ACK interrupts once more, just in case,
1402                 since the IRQ handler won't ack them anymore*/
1403
1404         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1405
1406         /* Disable timeout timers - if we have active buffers, we will
1407            fill them on resume*/
1408
1409         del_timer(&dev->video_q.timeout);
1410         del_timer(&dev->vbi_q.timeout);
1411         del_timer(&dev->ts_q.timeout);
1412
1413         if (dev->remote && dev->remote->dev->users)
1414                 saa7134_ir_close(dev->remote->dev);
1415
1416         pci_save_state(pci_dev);
1417         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1418
1419         return 0;
1420 }
1421
1422 static int saa7134_resume(struct pci_dev *pci_dev)
1423 {
1424         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1425         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1426         unsigned long flags;
1427
1428         pci_set_power_state(pci_dev, PCI_D0);
1429         pci_restore_state(pci_dev);
1430
1431         /* Do things that are done in saa7134_initdev ,
1432                 except of initializing memory structures.*/
1433
1434         saa7134_board_init1(dev);
1435
1436         /* saa7134_hwinit1 */
1437         if (saa7134_boards[dev->board].video_out)
1438                 saa7134_videoport_init(dev);
1439         if (card_has_mpeg(dev))
1440                 saa7134_ts_init_hw(dev);
1441         if (dev->remote && dev->remote->dev->users)
1442                 saa7134_ir_open(dev->remote->dev);
1443         saa7134_hw_enable1(dev);
1444
1445         msleep(100);
1446
1447         saa7134_board_init2(dev);
1448
1449         /*saa7134_hwinit2*/
1450         saa7134_set_tvnorm_hw(dev);
1451         saa7134_tvaudio_setmute(dev);
1452         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1453         saa7134_tvaudio_init(dev);
1454         saa7134_enable_i2s(dev);
1455         saa7134_hw_enable2(dev);
1456
1457         saa7134_irq_video_signalchange(dev);
1458
1459         /*resume unfinished buffer(s)*/
1460         spin_lock_irqsave(&dev->slock, flags);
1461         saa7134_buffer_requeue(dev, &dev->video_q);
1462         saa7134_buffer_requeue(dev, &dev->vbi_q);
1463         saa7134_buffer_requeue(dev, &dev->ts_q);
1464
1465         /* FIXME: Disable DMA audio sound - temporary till proper support
1466                   is implemented*/
1467
1468         dev->dmasound.dma_running = 0;
1469
1470         /* start DMA now*/
1471         dev->insuspend = 0;
1472         smp_wmb();
1473         saa7134_set_dmabits(dev);
1474         spin_unlock_irqrestore(&dev->slock, flags);
1475
1476         return 0;
1477 }
1478 #endif
1479
1480 /* ----------------------------------------------------------- */
1481
1482 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1483 {
1484         struct saa7134_dev *dev;
1485
1486         mutex_lock(&saa7134_devlist_lock);
1487         list_for_each_entry(dev, &saa7134_devlist, devlist)
1488                 mpeg_ops_attach(ops, dev);
1489         list_add_tail(&ops->next,&mops_list);
1490         mutex_unlock(&saa7134_devlist_lock);
1491         return 0;
1492 }
1493
1494 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1495 {
1496         struct saa7134_dev *dev;
1497
1498         mutex_lock(&saa7134_devlist_lock);
1499         list_del(&ops->next);
1500         list_for_each_entry(dev, &saa7134_devlist, devlist)
1501                 mpeg_ops_detach(ops, dev);
1502         mutex_unlock(&saa7134_devlist_lock);
1503 }
1504
1505 EXPORT_SYMBOL(saa7134_ts_register);
1506 EXPORT_SYMBOL(saa7134_ts_unregister);
1507
1508 /* ----------------------------------------------------------- */
1509
1510 static struct pci_driver saa7134_pci_driver = {
1511         .name     = "saa7134",
1512         .id_table = saa7134_pci_tbl,
1513         .probe    = saa7134_initdev,
1514         .remove   = saa7134_finidev,
1515 #ifdef CONFIG_PM
1516         .suspend  = saa7134_suspend,
1517         .resume   = saa7134_resume
1518 #endif
1519 };
1520
1521 static int __init saa7134_init(void)
1522 {
1523         INIT_LIST_HEAD(&saa7134_devlist);
1524         pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1525                SAA7134_VERSION);
1526         return pci_register_driver(&saa7134_pci_driver);
1527 }
1528
1529 static void __exit saa7134_fini(void)
1530 {
1531         pci_unregister_driver(&saa7134_pci_driver);
1532 }
1533
1534 module_init(saa7134_init);
1535 module_exit(saa7134_fini);
1536
1537 /* ----------------------------------------------------------- */
1538
1539 EXPORT_SYMBOL(saa7134_set_gpio);
1540 EXPORT_SYMBOL(saa7134_boards);
1541
1542 /* ----------------- for the DMA sound modules --------------- */
1543
1544 EXPORT_SYMBOL(saa7134_dmasound_init);
1545 EXPORT_SYMBOL(saa7134_dmasound_exit);
1546 EXPORT_SYMBOL(saa7134_pgtable_free);
1547 EXPORT_SYMBOL(saa7134_pgtable_build);
1548 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1549 EXPORT_SYMBOL(saa7134_set_dmabits);