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69#include <linux/module.h>
70#include <linux/slab.h>
71#include <linux/init.h>
72#include <linux/platform_device.h>
73#include <linux/interrupt.h>
74#include <media/v4l2-common.h>
75#include <linux/io.h>
76#include <media/davinci/vpfe_capture.h>
77#include "ccdc_hw_device.h"
78
79static int debug;
80static u32 numbuffers = 3;
81static u32 bufsize = (720 * 576 * 2);
82
83module_param(numbuffers, uint, S_IRUGO);
84module_param(bufsize, uint, S_IRUGO);
85module_param(debug, int, 0644);
86
87MODULE_PARM_DESC(numbuffers, "buffer count (default:3)");
88MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)");
89MODULE_PARM_DESC(debug, "Debug level 0-1");
90
91MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver");
92MODULE_LICENSE("GPL");
93MODULE_AUTHOR("Texas Instruments");
94
95
96struct vpfe_standard {
97 v4l2_std_id std_id;
98 unsigned int width;
99 unsigned int height;
100 struct v4l2_fract pixelaspect;
101
102 int frame_format;
103};
104
105
106struct ccdc_config {
107
108 int vpfe_probed;
109
110 char name[32];
111};
112
113
114static struct vpfe_config_params config_params = {
115 .min_numbuffers = 3,
116 .numbuffers = 3,
117 .min_bufsize = 720 * 480 * 2,
118 .device_bufsize = 720 * 576 * 2,
119};
120
121
122static struct ccdc_hw_device *ccdc_dev;
123
124static DEFINE_MUTEX(ccdc_lock);
125
126static struct ccdc_config *ccdc_cfg;
127
128const struct vpfe_standard vpfe_standards[] = {
129 {V4L2_STD_525_60, 720, 480, {11, 10}, 1},
130 {V4L2_STD_625_50, 720, 576, {54, 59}, 1},
131};
132
133
134static const struct vpfe_pixel_format vpfe_pix_fmts[] = {
135 {
136 .fmtdesc = {
137 .index = 0,
138 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
139 .description = "Bayer GrRBGb 8bit A-Law compr.",
140 .pixelformat = V4L2_PIX_FMT_SBGGR8,
141 },
142 .bpp = 1,
143 },
144 {
145 .fmtdesc = {
146 .index = 1,
147 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
148 .description = "Bayer GrRBGb - 16bit",
149 .pixelformat = V4L2_PIX_FMT_SBGGR16,
150 },
151 .bpp = 2,
152 },
153 {
154 .fmtdesc = {
155 .index = 2,
156 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
157 .description = "Bayer GrRBGb 8bit DPCM compr.",
158 .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8,
159 },
160 .bpp = 1,
161 },
162 {
163 .fmtdesc = {
164 .index = 3,
165 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
166 .description = "YCbCr 4:2:2 Interleaved UYVY",
167 .pixelformat = V4L2_PIX_FMT_UYVY,
168 },
169 .bpp = 2,
170 },
171 {
172 .fmtdesc = {
173 .index = 4,
174 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
175 .description = "YCbCr 4:2:2 Interleaved YUYV",
176 .pixelformat = V4L2_PIX_FMT_YUYV,
177 },
178 .bpp = 2,
179 },
180 {
181 .fmtdesc = {
182 .index = 5,
183 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
184 .description = "Y/CbCr 4:2:0 - Semi planar",
185 .pixelformat = V4L2_PIX_FMT_NV12,
186 },
187 .bpp = 1,
188 },
189};
190
191
192
193
194
195static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format)
196{
197 int i;
198
199 for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) {
200 if (pix_format == vpfe_pix_fmts[i].fmtdesc.pixelformat)
201 return &vpfe_pix_fmts[i];
202 }
203 return NULL;
204}
205
206
207
208
209
210int vpfe_register_ccdc_device(struct ccdc_hw_device *dev)
211{
212 int ret = 0;
213 printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name);
214
215 BUG_ON(!dev->hw_ops.open);
216 BUG_ON(!dev->hw_ops.enable);
217 BUG_ON(!dev->hw_ops.set_hw_if_params);
218 BUG_ON(!dev->hw_ops.configure);
219 BUG_ON(!dev->hw_ops.set_buftype);
220 BUG_ON(!dev->hw_ops.get_buftype);
221 BUG_ON(!dev->hw_ops.enum_pix);
222 BUG_ON(!dev->hw_ops.set_frame_format);
223 BUG_ON(!dev->hw_ops.get_frame_format);
224 BUG_ON(!dev->hw_ops.get_pixel_format);
225 BUG_ON(!dev->hw_ops.set_pixel_format);
226 BUG_ON(!dev->hw_ops.set_image_window);
227 BUG_ON(!dev->hw_ops.get_image_window);
228 BUG_ON(!dev->hw_ops.get_line_length);
229 BUG_ON(!dev->hw_ops.getfid);
230
231 mutex_lock(&ccdc_lock);
232 if (NULL == ccdc_cfg) {
233
234
235
236
237
238 printk(KERN_ERR "vpfe capture not initialized\n");
239 ret = -EFAULT;
240 goto unlock;
241 }
242
243 if (strcmp(dev->name, ccdc_cfg->name)) {
244
245 ret = -EINVAL;
246 goto unlock;
247 }
248
249 if (ccdc_dev) {
250 printk(KERN_ERR "ccdc already registered\n");
251 ret = -EINVAL;
252 goto unlock;
253 }
254
255 ccdc_dev = dev;
256unlock:
257 mutex_unlock(&ccdc_lock);
258 return ret;
259}
260EXPORT_SYMBOL(vpfe_register_ccdc_device);
261
262
263
264
265
266void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev)
267{
268 if (NULL == dev) {
269 printk(KERN_ERR "invalid ccdc device ptr\n");
270 return;
271 }
272
273 printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n",
274 dev->name);
275
276 if (strcmp(dev->name, ccdc_cfg->name)) {
277
278 return;
279 }
280
281 mutex_lock(&ccdc_lock);
282 ccdc_dev = NULL;
283 mutex_unlock(&ccdc_lock);
284 return;
285}
286EXPORT_SYMBOL(vpfe_unregister_ccdc_device);
287
288
289
290
291static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev,
292 struct v4l2_format *f)
293{
294 struct v4l2_rect image_win;
295 enum ccdc_buftype buf_type;
296 enum ccdc_frmfmt frm_fmt;
297
298 memset(f, 0, sizeof(*f));
299 f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
300 ccdc_dev->hw_ops.get_image_window(&image_win);
301 f->fmt.pix.width = image_win.width;
302 f->fmt.pix.height = image_win.height;
303 f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length();
304 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
305 f->fmt.pix.height;
306 buf_type = ccdc_dev->hw_ops.get_buftype();
307 f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format();
308 frm_fmt = ccdc_dev->hw_ops.get_frame_format();
309 if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE)
310 f->fmt.pix.field = V4L2_FIELD_NONE;
311 else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
312 if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
313 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
314 else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED)
315 f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
316 else {
317 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n");
318 return -EINVAL;
319 }
320 } else {
321 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n");
322 return -EINVAL;
323 }
324 return 0;
325}
326
327
328
329
330
331static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev)
332{
333 enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
334 int ret = 0;
335
336 if (ccdc_dev->hw_ops.set_pixel_format(
337 vpfe_dev->fmt.fmt.pix.pixelformat) < 0) {
338 v4l2_err(&vpfe_dev->v4l2_dev,
339 "couldn't set pix format in ccdc\n");
340 return -EINVAL;
341 }
342
343 ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop);
344
345 switch (vpfe_dev->fmt.fmt.pix.field) {
346 case V4L2_FIELD_INTERLACED:
347
348 ret = ccdc_dev->hw_ops.set_buftype(
349 CCDC_BUFTYPE_FLD_INTERLEAVED);
350 break;
351 case V4L2_FIELD_NONE:
352 frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
353
354 break;
355 case V4L2_FIELD_SEQ_TB:
356 ret = ccdc_dev->hw_ops.set_buftype(
357 CCDC_BUFTYPE_FLD_SEPARATED);
358 break;
359 default:
360 return -EINVAL;
361 }
362
363
364 if (!ret)
365 ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt);
366 return ret;
367}
368
369
370
371
372
373
374
375
376
377
378static int vpfe_config_image_format(struct vpfe_device *vpfe_dev,
379 v4l2_std_id std_id)
380{
381 struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev;
382 struct v4l2_mbus_framefmt mbus_fmt;
383 struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix;
384 int i, ret = 0;
385
386 for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
387 if (vpfe_standards[i].std_id & std_id) {
388 vpfe_dev->std_info.active_pixels =
389 vpfe_standards[i].width;
390 vpfe_dev->std_info.active_lines =
391 vpfe_standards[i].height;
392 vpfe_dev->std_info.frame_format =
393 vpfe_standards[i].frame_format;
394 vpfe_dev->std_index = i;
395 break;
396 }
397 }
398
399 if (i == ARRAY_SIZE(vpfe_standards)) {
400 v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n");
401 return -EINVAL;
402 }
403
404 vpfe_dev->crop.top = 0;
405 vpfe_dev->crop.left = 0;
406 vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels;
407 vpfe_dev->crop.height = vpfe_dev->std_info.active_lines;
408 pix->width = vpfe_dev->crop.width;
409 pix->height = vpfe_dev->crop.height;
410
411
412 if (vpfe_dev->std_info.frame_format) {
413 pix->field = V4L2_FIELD_INTERLACED;
414
415 pix->pixelformat = V4L2_PIX_FMT_UYVY;
416 v4l2_fill_mbus_format(&mbus_fmt, pix,
417 V4L2_MBUS_FMT_YUYV10_2X10);
418 } else {
419 pix->field = V4L2_FIELD_NONE;
420
421 pix->pixelformat = V4L2_PIX_FMT_SBGGR8;
422 v4l2_fill_mbus_format(&mbus_fmt, pix,
423 V4L2_MBUS_FMT_SBGGR8_1X8);
424 }
425
426
427 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev,
428 sdinfo->grp_id, video, g_mbus_fmt, &mbus_fmt);
429
430 if (ret && ret != -ENOIOCTLCMD) {
431 v4l2_err(&vpfe_dev->v4l2_dev,
432 "error in getting g_mbus_fmt from sub device\n");
433 return ret;
434 }
435 v4l2_fill_pix_format(pix, &mbus_fmt);
436 pix->bytesperline = pix->width * 2;
437 pix->sizeimage = pix->bytesperline * pix->height;
438
439
440 ret = vpfe_config_ccdc_image_format(vpfe_dev);
441 if (ret)
442 return ret;
443
444
445 if (!ret) {
446 pix->bytesperline = ccdc_dev->hw_ops.get_line_length();
447 pix->sizeimage = pix->bytesperline * pix->height;
448 }
449 return ret;
450}
451
452static int vpfe_initialize_device(struct vpfe_device *vpfe_dev)
453{
454 int ret = 0;
455
456
457 vpfe_dev->current_input = 0;
458
459
460 vpfe_dev->std_index = 0;
461
462
463 ret = vpfe_config_image_format(vpfe_dev,
464 vpfe_standards[vpfe_dev->std_index].std_id);
465 if (ret)
466 return ret;
467
468
469 mutex_lock(&ccdc_lock);
470 if (NULL == ccdc_dev) {
471 v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n");
472 ret = -ENODEV;
473 goto unlock;
474 }
475
476 if (!try_module_get(ccdc_dev->owner)) {
477 v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n");
478 ret = -ENODEV;
479 goto unlock;
480 }
481 ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev);
482 if (!ret)
483 vpfe_dev->initialized = 1;
484
485
486 if (vpfe_dev->cfg->clr_intr)
487 vpfe_dev->cfg->clr_intr(-1);
488
489unlock:
490 mutex_unlock(&ccdc_lock);
491 return ret;
492}
493
494
495
496
497
498static int vpfe_open(struct file *file)
499{
500 struct vpfe_device *vpfe_dev = video_drvdata(file);
501 struct vpfe_fh *fh;
502
503 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n");
504
505 if (!vpfe_dev->cfg->num_subdevs) {
506 v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n");
507 return -ENODEV;
508 }
509
510
511 fh = kmalloc(sizeof(struct vpfe_fh), GFP_KERNEL);
512 if (NULL == fh) {
513 v4l2_err(&vpfe_dev->v4l2_dev,
514 "unable to allocate memory for file handle object\n");
515 return -ENOMEM;
516 }
517
518 file->private_data = fh;
519 fh->vpfe_dev = vpfe_dev;
520 mutex_lock(&vpfe_dev->lock);
521
522 if (!vpfe_dev->initialized) {
523 if (vpfe_initialize_device(vpfe_dev)) {
524 mutex_unlock(&vpfe_dev->lock);
525 return -ENODEV;
526 }
527 }
528
529 vpfe_dev->usrs++;
530
531 fh->io_allowed = 0;
532
533 fh->prio = V4L2_PRIORITY_UNSET;
534 v4l2_prio_open(&vpfe_dev->prio, &fh->prio);
535 mutex_unlock(&vpfe_dev->lock);
536 return 0;
537}
538
539static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev)
540{
541 unsigned long addr;
542
543 vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next,
544 struct videobuf_buffer, queue);
545 list_del(&vpfe_dev->next_frm->queue);
546 vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE;
547 addr = videobuf_to_dma_contig(vpfe_dev->next_frm);
548
549 ccdc_dev->hw_ops.setfbaddr(addr);
550}
551
552static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev)
553{
554 unsigned long addr;
555
556 addr = videobuf_to_dma_contig(vpfe_dev->cur_frm);
557 addr += vpfe_dev->field_off;
558 ccdc_dev->hw_ops.setfbaddr(addr);
559}
560
561static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev)
562{
563 v4l2_get_timestamp(&vpfe_dev->cur_frm->ts);
564 vpfe_dev->cur_frm->state = VIDEOBUF_DONE;
565 vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage;
566 wake_up_interruptible(&vpfe_dev->cur_frm->done);
567 vpfe_dev->cur_frm = vpfe_dev->next_frm;
568}
569
570
571static irqreturn_t vpfe_isr(int irq, void *dev_id)
572{
573 struct vpfe_device *vpfe_dev = dev_id;
574 enum v4l2_field field;
575 int fid;
576
577 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n");
578 field = vpfe_dev->fmt.fmt.pix.field;
579
580
581 if (!vpfe_dev->started)
582 goto clear_intr;
583
584
585 if (NULL != ccdc_dev->hw_ops.reset)
586 ccdc_dev->hw_ops.reset();
587
588 if (field == V4L2_FIELD_NONE) {
589
590 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
591 "frame format is progressive...\n");
592 if (vpfe_dev->cur_frm != vpfe_dev->next_frm)
593 vpfe_process_buffer_complete(vpfe_dev);
594 goto clear_intr;
595 }
596
597
598 fid = ccdc_dev->hw_ops.getfid();
599
600
601 vpfe_dev->field_id ^= 1;
602 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n",
603 fid, vpfe_dev->field_id);
604 if (fid == vpfe_dev->field_id) {
605
606 if (fid == 0) {
607
608
609
610
611 if (vpfe_dev->cur_frm != vpfe_dev->next_frm)
612 vpfe_process_buffer_complete(vpfe_dev);
613
614
615
616
617
618 if (field == V4L2_FIELD_SEQ_TB) {
619 vpfe_schedule_bottom_field(vpfe_dev);
620 }
621 goto clear_intr;
622 }
623
624
625
626
627
628
629 spin_lock(&vpfe_dev->dma_queue_lock);
630 if (!list_empty(&vpfe_dev->dma_queue) &&
631 vpfe_dev->cur_frm == vpfe_dev->next_frm)
632 vpfe_schedule_next_buffer(vpfe_dev);
633 spin_unlock(&vpfe_dev->dma_queue_lock);
634 } else if (fid == 0) {
635
636
637
638
639 vpfe_dev->field_id = fid;
640 }
641clear_intr:
642 if (vpfe_dev->cfg->clr_intr)
643 vpfe_dev->cfg->clr_intr(irq);
644
645 return IRQ_HANDLED;
646}
647
648
649static irqreturn_t vdint1_isr(int irq, void *dev_id)
650{
651 struct vpfe_device *vpfe_dev = dev_id;
652
653 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n");
654
655
656 if (!vpfe_dev->started) {
657 if (vpfe_dev->cfg->clr_intr)
658 vpfe_dev->cfg->clr_intr(irq);
659 return IRQ_HANDLED;
660 }
661
662 spin_lock(&vpfe_dev->dma_queue_lock);
663 if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) &&
664 !list_empty(&vpfe_dev->dma_queue) &&
665 vpfe_dev->cur_frm == vpfe_dev->next_frm)
666 vpfe_schedule_next_buffer(vpfe_dev);
667 spin_unlock(&vpfe_dev->dma_queue_lock);
668
669 if (vpfe_dev->cfg->clr_intr)
670 vpfe_dev->cfg->clr_intr(irq);
671
672 return IRQ_HANDLED;
673}
674
675static void vpfe_detach_irq(struct vpfe_device *vpfe_dev)
676{
677 enum ccdc_frmfmt frame_format;
678
679 frame_format = ccdc_dev->hw_ops.get_frame_format();
680 if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
681 free_irq(vpfe_dev->ccdc_irq1, vpfe_dev);
682}
683
684static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
685{
686 enum ccdc_frmfmt frame_format;
687
688 frame_format = ccdc_dev->hw_ops.get_frame_format();
689 if (frame_format == CCDC_FRMFMT_PROGRESSIVE) {
690 return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr,
691 IRQF_DISABLED, "vpfe_capture1",
692 vpfe_dev);
693 }
694 return 0;
695}
696
697
698static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev)
699{
700 vpfe_dev->started = 0;
701 ccdc_dev->hw_ops.enable(0);
702 if (ccdc_dev->hw_ops.enable_out_to_sdram)
703 ccdc_dev->hw_ops.enable_out_to_sdram(0);
704}
705
706
707
708
709
710static int vpfe_release(struct file *file)
711{
712 struct vpfe_device *vpfe_dev = video_drvdata(file);
713 struct vpfe_fh *fh = file->private_data;
714 struct vpfe_subdev_info *sdinfo;
715 int ret;
716
717 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n");
718
719
720 mutex_lock(&vpfe_dev->lock);
721
722 if (fh->io_allowed) {
723 if (vpfe_dev->started) {
724 sdinfo = vpfe_dev->current_subdev;
725 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev,
726 sdinfo->grp_id,
727 video, s_stream, 0);
728 if (ret && (ret != -ENOIOCTLCMD))
729 v4l2_err(&vpfe_dev->v4l2_dev,
730 "stream off failed in subdev\n");
731 vpfe_stop_ccdc_capture(vpfe_dev);
732 vpfe_detach_irq(vpfe_dev);
733 videobuf_streamoff(&vpfe_dev->buffer_queue);
734 }
735 vpfe_dev->io_usrs = 0;
736 vpfe_dev->numbuffers = config_params.numbuffers;
737 }
738
739
740 vpfe_dev->usrs--;
741
742 v4l2_prio_close(&vpfe_dev->prio, fh->prio);
743
744 if (!vpfe_dev->usrs) {
745 vpfe_dev->initialized = 0;
746 if (ccdc_dev->hw_ops.close)
747 ccdc_dev->hw_ops.close(vpfe_dev->pdev);
748 module_put(ccdc_dev->owner);
749 }
750 mutex_unlock(&vpfe_dev->lock);
751 file->private_data = NULL;
752
753 kfree(fh);
754 return 0;
755}
756
757
758
759
760
761static int vpfe_mmap(struct file *file, struct vm_area_struct *vma)
762{
763
764 struct vpfe_device *vpfe_dev = video_drvdata(file);
765
766 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n");
767
768 return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma);
769}
770
771
772
773
774static unsigned int vpfe_poll(struct file *file, poll_table *wait)
775{
776 struct vpfe_device *vpfe_dev = video_drvdata(file);
777
778 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n");
779
780 if (vpfe_dev->started)
781 return videobuf_poll_stream(file,
782 &vpfe_dev->buffer_queue, wait);
783 return 0;
784}
785
786
787static const struct v4l2_file_operations vpfe_fops = {
788 .owner = THIS_MODULE,
789 .open = vpfe_open,
790 .release = vpfe_release,
791 .unlocked_ioctl = video_ioctl2,
792 .mmap = vpfe_mmap,
793 .poll = vpfe_poll
794};
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813static const struct vpfe_pixel_format *
814 vpfe_check_format(struct vpfe_device *vpfe_dev,
815 struct v4l2_pix_format *pixfmt)
816{
817 u32 min_height = 1, min_width = 32, max_width, max_height;
818 const struct vpfe_pixel_format *vpfe_pix_fmt;
819 u32 pix;
820 int temp, found;
821
822 vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
823 if (NULL == vpfe_pix_fmt) {
824
825
826
827
828 pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat;
829 vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
830 }
831
832
833 temp = 0;
834 found = 0;
835 while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) {
836 if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) {
837 found = 1;
838 break;
839 }
840 temp++;
841 }
842
843 if (!found) {
844
845 pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat;
846
847
848
849
850 vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
851 }
852
853
854 if (pixfmt->field == V4L2_FIELD_ANY) {
855
856 pixfmt->field = vpfe_dev->fmt.fmt.pix.field;
857 }
858
859
860
861
862
863 if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) {
864
865
866
867
868 switch (pixfmt->field) {
869 case V4L2_FIELD_INTERLACED:
870 case V4L2_FIELD_SEQ_TB:
871
872 if (!vpfe_dev->std_info.frame_format)
873 pixfmt->field = V4L2_FIELD_NONE;
874 break;
875 case V4L2_FIELD_NONE:
876 if (vpfe_dev->std_info.frame_format)
877 pixfmt->field = V4L2_FIELD_INTERLACED;
878 break;
879
880 default:
881
882 pixfmt->field = vpfe_dev->fmt.fmt.pix.field;
883 break;
884 }
885 }
886
887
888 if (pixfmt->field == V4L2_FIELD_INTERLACED ||
889 pixfmt->field == V4L2_FIELD_SEQ_TB)
890 min_height = 2;
891
892 max_width = vpfe_dev->std_info.active_pixels;
893 max_height = vpfe_dev->std_info.active_lines;
894 min_width /= vpfe_pix_fmt->bpp;
895
896 v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n",
897 pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp);
898
899 pixfmt->width = clamp((pixfmt->width), min_width, max_width);
900 pixfmt->height = clamp((pixfmt->height), min_height, max_height);
901
902
903 if (pixfmt->field == V4L2_FIELD_INTERLACED)
904 pixfmt->height &= (~1);
905
906
907
908
909 pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31)
910 & ~31);
911 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12)
912 pixfmt->sizeimage =
913 pixfmt->bytesperline * pixfmt->height +
914 ((pixfmt->bytesperline * pixfmt->height) >> 1);
915 else
916 pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
917
918 v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height ="
919 " %d, bpp = %d, bytesperline = %d, sizeimage = %d\n",
920 pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp,
921 pixfmt->bytesperline, pixfmt->sizeimage);
922 return vpfe_pix_fmt;
923}
924
925static int vpfe_querycap(struct file *file, void *priv,
926 struct v4l2_capability *cap)
927{
928 struct vpfe_device *vpfe_dev = video_drvdata(file);
929
930 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n");
931
932 cap->version = VPFE_CAPTURE_VERSION_CODE;
933 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
934 strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver));
935 strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info));
936 strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card));
937 return 0;
938}
939
940static int vpfe_g_fmt_vid_cap(struct file *file, void *priv,
941 struct v4l2_format *fmt)
942{
943 struct vpfe_device *vpfe_dev = video_drvdata(file);
944 int ret = 0;
945
946 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n");
947
948 *fmt = vpfe_dev->fmt;
949 return ret;
950}
951
952static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv,
953 struct v4l2_fmtdesc *fmt)
954{
955 struct vpfe_device *vpfe_dev = video_drvdata(file);
956 const struct vpfe_pixel_format *pix_fmt;
957 int temp_index;
958 u32 pix;
959
960 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n");
961
962 if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0)
963 return -EINVAL;
964
965
966 pix_fmt = vpfe_lookup_pix_format(pix);
967 if (NULL != pix_fmt) {
968 temp_index = fmt->index;
969 *fmt = pix_fmt->fmtdesc;
970 fmt->index = temp_index;
971 return 0;
972 }
973 return -EINVAL;
974}
975
976static int vpfe_s_fmt_vid_cap(struct file *file, void *priv,
977 struct v4l2_format *fmt)
978{
979 struct vpfe_device *vpfe_dev = video_drvdata(file);
980 const struct vpfe_pixel_format *pix_fmts;
981 int ret = 0;
982
983 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n");
984
985
986 if (vpfe_dev->started) {
987 v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n");
988 return -EBUSY;
989 }
990
991
992 pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix);
993
994 if (NULL == pix_fmts)
995 return -EINVAL;
996
997
998 ret = mutex_lock_interruptible(&vpfe_dev->lock);
999 if (ret)
1000 return ret;
1001
1002
1003 vpfe_detach_irq(vpfe_dev);
1004 vpfe_dev->fmt = *fmt;
1005
1006 ret = vpfe_config_ccdc_image_format(vpfe_dev);
1007 mutex_unlock(&vpfe_dev->lock);
1008 return ret;
1009}
1010
1011static int vpfe_try_fmt_vid_cap(struct file *file, void *priv,
1012 struct v4l2_format *f)
1013{
1014 struct vpfe_device *vpfe_dev = video_drvdata(file);
1015 const struct vpfe_pixel_format *pix_fmts;
1016
1017 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n");
1018
1019 pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix);
1020 if (NULL == pix_fmts)
1021 return -EINVAL;
1022 return 0;
1023}
1024
1025
1026
1027
1028
1029static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev,
1030 int *subdev_index,
1031 int *subdev_input_index,
1032 int app_input_index)
1033{
1034 struct vpfe_config *cfg = vpfe_dev->cfg;
1035 struct vpfe_subdev_info *sdinfo;
1036 int i, j = 0;
1037
1038 for (i = 0; i < cfg->num_subdevs; i++) {
1039 sdinfo = &cfg->sub_devs[i];
1040 if (app_input_index < (j + sdinfo->num_inputs)) {
1041 *subdev_index = i;
1042 *subdev_input_index = app_input_index - j;
1043 return 0;
1044 }
1045 j += sdinfo->num_inputs;
1046 }
1047 return -EINVAL;
1048}
1049
1050
1051
1052
1053
1054
1055static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev,
1056 int *app_input_index)
1057{
1058 struct vpfe_config *cfg = vpfe_dev->cfg;
1059 struct vpfe_subdev_info *sdinfo;
1060 int i, j = 0;
1061
1062 for (i = 0; i < cfg->num_subdevs; i++) {
1063 sdinfo = &cfg->sub_devs[i];
1064 if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) {
1065 if (vpfe_dev->current_input >= sdinfo->num_inputs)
1066 return -1;
1067 *app_input_index = j + vpfe_dev->current_input;
1068 return 0;
1069 }
1070 j += sdinfo->num_inputs;
1071 }
1072 return -EINVAL;
1073}
1074
1075static int vpfe_enum_input(struct file *file, void *priv,
1076 struct v4l2_input *inp)
1077{
1078 struct vpfe_device *vpfe_dev = video_drvdata(file);
1079 struct vpfe_subdev_info *sdinfo;
1080 int subdev, index ;
1081
1082 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n");
1083
1084 if (vpfe_get_subdev_input_index(vpfe_dev,
1085 &subdev,
1086 &index,
1087 inp->index) < 0) {
1088 v4l2_err(&vpfe_dev->v4l2_dev, "input information not found"
1089 " for the subdev\n");
1090 return -EINVAL;
1091 }
1092 sdinfo = &vpfe_dev->cfg->sub_devs[subdev];
1093 memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input));
1094 return 0;
1095}
1096
1097static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
1098{
1099 struct vpfe_device *vpfe_dev = video_drvdata(file);
1100
1101 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n");
1102
1103 return vpfe_get_app_input_index(vpfe_dev, index);
1104}
1105
1106
1107static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
1108{
1109 struct vpfe_device *vpfe_dev = video_drvdata(file);
1110 struct v4l2_subdev *sd;
1111 struct vpfe_subdev_info *sdinfo;
1112 int subdev_index, inp_index;
1113 struct vpfe_route *route;
1114 u32 input = 0, output = 0;
1115 int ret = -EINVAL;
1116
1117 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n");
1118
1119 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1120 if (ret)
1121 return ret;
1122
1123
1124
1125
1126
1127 if (vpfe_dev->started) {
1128 v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n");
1129 ret = -EBUSY;
1130 goto unlock_out;
1131 }
1132 ret = vpfe_get_subdev_input_index(vpfe_dev,
1133 &subdev_index,
1134 &inp_index,
1135 index);
1136 if (ret < 0) {
1137 v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n");
1138 goto unlock_out;
1139 }
1140
1141 sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index];
1142 sd = vpfe_dev->sd[subdev_index];
1143 route = &sdinfo->routes[inp_index];
1144 if (route && sdinfo->can_route) {
1145 input = route->input;
1146 output = route->output;
1147 }
1148
1149 if (sd)
1150 ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0);
1151
1152 if (ret) {
1153 v4l2_err(&vpfe_dev->v4l2_dev,
1154 "vpfe_doioctl:error in setting input in decoder\n");
1155 ret = -EINVAL;
1156 goto unlock_out;
1157 }
1158 vpfe_dev->current_subdev = sdinfo;
1159 if (sd)
1160 vpfe_dev->v4l2_dev.ctrl_handler = sd->ctrl_handler;
1161 vpfe_dev->current_input = index;
1162 vpfe_dev->std_index = 0;
1163
1164
1165 ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params);
1166 if (ret)
1167 goto unlock_out;
1168
1169
1170 ret = vpfe_config_image_format(vpfe_dev,
1171 vpfe_standards[vpfe_dev->std_index].std_id);
1172unlock_out:
1173 mutex_unlock(&vpfe_dev->lock);
1174 return ret;
1175}
1176
1177static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
1178{
1179 struct vpfe_device *vpfe_dev = video_drvdata(file);
1180 struct vpfe_subdev_info *sdinfo;
1181 int ret = 0;
1182
1183 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n");
1184
1185 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1186 sdinfo = vpfe_dev->current_subdev;
1187 if (ret)
1188 return ret;
1189
1190 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
1191 video, querystd, std_id);
1192 mutex_unlock(&vpfe_dev->lock);
1193 return ret;
1194}
1195
1196static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
1197{
1198 struct vpfe_device *vpfe_dev = video_drvdata(file);
1199 struct vpfe_subdev_info *sdinfo;
1200 int ret = 0;
1201
1202 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n");
1203
1204
1205 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1206 if (ret)
1207 return ret;
1208
1209 sdinfo = vpfe_dev->current_subdev;
1210
1211 if (vpfe_dev->started) {
1212 v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n");
1213 ret = -EBUSY;
1214 goto unlock_out;
1215 }
1216
1217 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
1218 core, s_std, std_id);
1219 if (ret < 0) {
1220 v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n");
1221 goto unlock_out;
1222 }
1223 ret = vpfe_config_image_format(vpfe_dev, std_id);
1224
1225unlock_out:
1226 mutex_unlock(&vpfe_dev->lock);
1227 return ret;
1228}
1229
1230static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
1231{
1232 struct vpfe_device *vpfe_dev = video_drvdata(file);
1233
1234 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n");
1235
1236 *std_id = vpfe_standards[vpfe_dev->std_index].std_id;
1237 return 0;
1238}
1239
1240
1241
1242static int vpfe_videobuf_setup(struct videobuf_queue *vq,
1243 unsigned int *count,
1244 unsigned int *size)
1245{
1246 struct vpfe_fh *fh = vq->priv_data;
1247 struct vpfe_device *vpfe_dev = fh->vpfe_dev;
1248
1249 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n");
1250 *size = vpfe_dev->fmt.fmt.pix.sizeimage;
1251 if (vpfe_dev->memory == V4L2_MEMORY_MMAP &&
1252 vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize)
1253 *size = config_params.device_bufsize;
1254
1255 if (*count < config_params.min_numbuffers)
1256 *count = config_params.min_numbuffers;
1257 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1258 "count=%d, size=%d\n", *count, *size);
1259 return 0;
1260}
1261
1262static int vpfe_videobuf_prepare(struct videobuf_queue *vq,
1263 struct videobuf_buffer *vb,
1264 enum v4l2_field field)
1265{
1266 struct vpfe_fh *fh = vq->priv_data;
1267 struct vpfe_device *vpfe_dev = fh->vpfe_dev;
1268 unsigned long addr;
1269 int ret;
1270
1271 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n");
1272
1273
1274 if (VIDEOBUF_NEEDS_INIT == vb->state) {
1275 vb->width = vpfe_dev->fmt.fmt.pix.width;
1276 vb->height = vpfe_dev->fmt.fmt.pix.height;
1277 vb->size = vpfe_dev->fmt.fmt.pix.sizeimage;
1278 vb->field = field;
1279
1280 ret = videobuf_iolock(vq, vb, NULL);
1281 if (ret < 0)
1282 return ret;
1283
1284 addr = videobuf_to_dma_contig(vb);
1285
1286 if (!ALIGN(addr, 32))
1287 return -EINVAL;
1288
1289 vb->state = VIDEOBUF_PREPARED;
1290 }
1291 return 0;
1292}
1293
1294static void vpfe_videobuf_queue(struct videobuf_queue *vq,
1295 struct videobuf_buffer *vb)
1296{
1297
1298 struct vpfe_fh *fh = vq->priv_data;
1299 struct vpfe_device *vpfe_dev = fh->vpfe_dev;
1300 unsigned long flags;
1301
1302 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n");
1303
1304
1305 spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags);
1306 list_add_tail(&vb->queue, &vpfe_dev->dma_queue);
1307 spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags);
1308
1309
1310 vb->state = VIDEOBUF_QUEUED;
1311}
1312
1313static void vpfe_videobuf_release(struct videobuf_queue *vq,
1314 struct videobuf_buffer *vb)
1315{
1316 struct vpfe_fh *fh = vq->priv_data;
1317 struct vpfe_device *vpfe_dev = fh->vpfe_dev;
1318 unsigned long flags;
1319
1320 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n");
1321
1322
1323
1324
1325
1326 spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags);
1327 INIT_LIST_HEAD(&vpfe_dev->dma_queue);
1328 spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags);
1329 videobuf_dma_contig_free(vq, vb);
1330 vb->state = VIDEOBUF_NEEDS_INIT;
1331}
1332
1333static struct videobuf_queue_ops vpfe_videobuf_qops = {
1334 .buf_setup = vpfe_videobuf_setup,
1335 .buf_prepare = vpfe_videobuf_prepare,
1336 .buf_queue = vpfe_videobuf_queue,
1337 .buf_release = vpfe_videobuf_release,
1338};
1339
1340
1341
1342
1343
1344static int vpfe_reqbufs(struct file *file, void *priv,
1345 struct v4l2_requestbuffers *req_buf)
1346{
1347 struct vpfe_device *vpfe_dev = video_drvdata(file);
1348 struct vpfe_fh *fh = file->private_data;
1349 int ret = 0;
1350
1351 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n");
1352
1353 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) {
1354 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n");
1355 return -EINVAL;
1356 }
1357
1358 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1359 if (ret)
1360 return ret;
1361
1362 if (vpfe_dev->io_usrs != 0) {
1363 v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n");
1364 ret = -EBUSY;
1365 goto unlock_out;
1366 }
1367
1368 vpfe_dev->memory = req_buf->memory;
1369 videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue,
1370 &vpfe_videobuf_qops,
1371 vpfe_dev->pdev,
1372 &vpfe_dev->irqlock,
1373 req_buf->type,
1374 vpfe_dev->fmt.fmt.pix.field,
1375 sizeof(struct videobuf_buffer),
1376 fh, NULL);
1377
1378 fh->io_allowed = 1;
1379 vpfe_dev->io_usrs = 1;
1380 INIT_LIST_HEAD(&vpfe_dev->dma_queue);
1381 ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf);
1382unlock_out:
1383 mutex_unlock(&vpfe_dev->lock);
1384 return ret;
1385}
1386
1387static int vpfe_querybuf(struct file *file, void *priv,
1388 struct v4l2_buffer *buf)
1389{
1390 struct vpfe_device *vpfe_dev = video_drvdata(file);
1391
1392 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n");
1393
1394 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) {
1395 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
1396 return -EINVAL;
1397 }
1398
1399 if (vpfe_dev->memory != V4L2_MEMORY_MMAP) {
1400 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n");
1401 return -EINVAL;
1402 }
1403
1404 return videobuf_querybuf(&vpfe_dev->buffer_queue, buf);
1405}
1406
1407static int vpfe_qbuf(struct file *file, void *priv,
1408 struct v4l2_buffer *p)
1409{
1410 struct vpfe_device *vpfe_dev = video_drvdata(file);
1411 struct vpfe_fh *fh = file->private_data;
1412
1413 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n");
1414
1415 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) {
1416 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
1417 return -EINVAL;
1418 }
1419
1420
1421
1422
1423
1424 if (!fh->io_allowed) {
1425 v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
1426 return -EACCES;
1427 }
1428 return videobuf_qbuf(&vpfe_dev->buffer_queue, p);
1429}
1430
1431static int vpfe_dqbuf(struct file *file, void *priv,
1432 struct v4l2_buffer *buf)
1433{
1434 struct vpfe_device *vpfe_dev = video_drvdata(file);
1435
1436 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n");
1437
1438 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) {
1439 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
1440 return -EINVAL;
1441 }
1442 return videobuf_dqbuf(&vpfe_dev->buffer_queue,
1443 buf, file->f_flags & O_NONBLOCK);
1444}
1445
1446
1447
1448
1449
1450static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev)
1451{
1452 struct v4l2_rect image_win;
1453
1454 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n");
1455
1456 ccdc_dev->hw_ops.get_image_window(&image_win);
1457 vpfe_dev->field_off = image_win.height * image_win.width;
1458}
1459
1460
1461static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev)
1462{
1463 ccdc_dev->hw_ops.enable(1);
1464 if (ccdc_dev->hw_ops.enable_out_to_sdram)
1465 ccdc_dev->hw_ops.enable_out_to_sdram(1);
1466 vpfe_dev->started = 1;
1467}
1468
1469
1470
1471
1472
1473
1474static int vpfe_streamon(struct file *file, void *priv,
1475 enum v4l2_buf_type buf_type)
1476{
1477 struct vpfe_device *vpfe_dev = video_drvdata(file);
1478 struct vpfe_fh *fh = file->private_data;
1479 struct vpfe_subdev_info *sdinfo;
1480 unsigned long addr;
1481 int ret = 0;
1482
1483 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n");
1484
1485 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) {
1486 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
1487 return -EINVAL;
1488 }
1489
1490
1491 if (!fh->io_allowed) {
1492 v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
1493 return -EACCES;
1494 }
1495
1496 sdinfo = vpfe_dev->current_subdev;
1497 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
1498 video, s_stream, 1);
1499
1500 if (ret && (ret != -ENOIOCTLCMD)) {
1501 v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n");
1502 return -EINVAL;
1503 }
1504
1505
1506 if (list_empty(&vpfe_dev->buffer_queue.stream)) {
1507 v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n");
1508 return -EIO;
1509 }
1510
1511
1512 ret = videobuf_streamon(&vpfe_dev->buffer_queue);
1513 if (ret)
1514 return ret;
1515
1516
1517 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1518 if (ret)
1519 goto streamoff;
1520
1521 vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next,
1522 struct videobuf_buffer, queue);
1523 vpfe_dev->cur_frm = vpfe_dev->next_frm;
1524
1525 list_del(&vpfe_dev->cur_frm->queue);
1526
1527 vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE;
1528
1529 vpfe_dev->field_id = 0;
1530 addr = videobuf_to_dma_contig(vpfe_dev->cur_frm);
1531
1532
1533 vpfe_calculate_offsets(vpfe_dev);
1534
1535 if (vpfe_attach_irq(vpfe_dev) < 0) {
1536 v4l2_err(&vpfe_dev->v4l2_dev,
1537 "Error in attaching interrupt handle\n");
1538 ret = -EFAULT;
1539 goto unlock_out;
1540 }
1541 if (ccdc_dev->hw_ops.configure() < 0) {
1542 v4l2_err(&vpfe_dev->v4l2_dev,
1543 "Error in configuring ccdc\n");
1544 ret = -EINVAL;
1545 goto unlock_out;
1546 }
1547 ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr));
1548 vpfe_start_ccdc_capture(vpfe_dev);
1549 mutex_unlock(&vpfe_dev->lock);
1550 return ret;
1551unlock_out:
1552 mutex_unlock(&vpfe_dev->lock);
1553streamoff:
1554 ret = videobuf_streamoff(&vpfe_dev->buffer_queue);
1555 return ret;
1556}
1557
1558static int vpfe_streamoff(struct file *file, void *priv,
1559 enum v4l2_buf_type buf_type)
1560{
1561 struct vpfe_device *vpfe_dev = video_drvdata(file);
1562 struct vpfe_fh *fh = file->private_data;
1563 struct vpfe_subdev_info *sdinfo;
1564 int ret = 0;
1565
1566 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n");
1567
1568 if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) {
1569 v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
1570 return -EINVAL;
1571 }
1572
1573
1574 if (!fh->io_allowed) {
1575 v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
1576 return -EACCES;
1577 }
1578
1579
1580 if (!vpfe_dev->started) {
1581 v4l2_err(&vpfe_dev->v4l2_dev, "device started\n");
1582 return -EINVAL;
1583 }
1584
1585 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1586 if (ret)
1587 return ret;
1588
1589 vpfe_stop_ccdc_capture(vpfe_dev);
1590 vpfe_detach_irq(vpfe_dev);
1591
1592 sdinfo = vpfe_dev->current_subdev;
1593 ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
1594 video, s_stream, 0);
1595
1596 if (ret && (ret != -ENOIOCTLCMD))
1597 v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n");
1598 ret = videobuf_streamoff(&vpfe_dev->buffer_queue);
1599 mutex_unlock(&vpfe_dev->lock);
1600 return ret;
1601}
1602
1603static int vpfe_cropcap(struct file *file, void *priv,
1604 struct v4l2_cropcap *crop)
1605{
1606 struct vpfe_device *vpfe_dev = video_drvdata(file);
1607
1608 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n");
1609
1610 if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards))
1611 return -EINVAL;
1612
1613 memset(crop, 0, sizeof(struct v4l2_cropcap));
1614 crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1615 crop->bounds.width = crop->defrect.width =
1616 vpfe_standards[vpfe_dev->std_index].width;
1617 crop->bounds.height = crop->defrect.height =
1618 vpfe_standards[vpfe_dev->std_index].height;
1619 crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect;
1620 return 0;
1621}
1622
1623static int vpfe_g_crop(struct file *file, void *priv,
1624 struct v4l2_crop *crop)
1625{
1626 struct vpfe_device *vpfe_dev = video_drvdata(file);
1627
1628 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n");
1629
1630 crop->c = vpfe_dev->crop;
1631 return 0;
1632}
1633
1634static int vpfe_s_crop(struct file *file, void *priv,
1635 const struct v4l2_crop *crop)
1636{
1637 struct vpfe_device *vpfe_dev = video_drvdata(file);
1638 struct v4l2_rect rect = crop->c;
1639 int ret = 0;
1640
1641 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n");
1642
1643 if (vpfe_dev->started) {
1644
1645 v4l2_err(&vpfe_dev->v4l2_dev,
1646 "Cannot change crop when streaming is ON\n");
1647 return -EBUSY;
1648 }
1649
1650 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1651 if (ret)
1652 return ret;
1653
1654 if (rect.top < 0 || rect.left < 0) {
1655 v4l2_err(&vpfe_dev->v4l2_dev,
1656 "doesn't support negative values for top & left\n");
1657 ret = -EINVAL;
1658 goto unlock_out;
1659 }
1660
1661
1662 rect.width = ((rect.width + 15) & ~0xf);
1663
1664
1665 if ((rect.left + rect.width >
1666 vpfe_dev->std_info.active_pixels) ||
1667 (rect.top + rect.height >
1668 vpfe_dev->std_info.active_lines)) {
1669 v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n");
1670 ret = -EINVAL;
1671 goto unlock_out;
1672 }
1673 ccdc_dev->hw_ops.set_image_window(&rect);
1674 vpfe_dev->fmt.fmt.pix.width = rect.width;
1675 vpfe_dev->fmt.fmt.pix.height = rect.height;
1676 vpfe_dev->fmt.fmt.pix.bytesperline =
1677 ccdc_dev->hw_ops.get_line_length();
1678 vpfe_dev->fmt.fmt.pix.sizeimage =
1679 vpfe_dev->fmt.fmt.pix.bytesperline *
1680 vpfe_dev->fmt.fmt.pix.height;
1681 vpfe_dev->crop = rect;
1682unlock_out:
1683 mutex_unlock(&vpfe_dev->lock);
1684 return ret;
1685}
1686
1687
1688static long vpfe_param_handler(struct file *file, void *priv,
1689 bool valid_prio, unsigned int cmd, void *param)
1690{
1691 struct vpfe_device *vpfe_dev = video_drvdata(file);
1692 int ret = 0;
1693
1694 v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n");
1695
1696 if (vpfe_dev->started) {
1697
1698 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1699 "device already started\n");
1700 return -EBUSY;
1701 }
1702
1703 ret = mutex_lock_interruptible(&vpfe_dev->lock);
1704 if (ret)
1705 return ret;
1706
1707 switch (cmd) {
1708 case VPFE_CMD_S_CCDC_RAW_PARAMS:
1709 v4l2_warn(&vpfe_dev->v4l2_dev,
1710 "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
1711 if (ccdc_dev->hw_ops.set_params) {
1712 ret = ccdc_dev->hw_ops.set_params(param);
1713 if (ret) {
1714 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1715 "Error setting parameters in CCDC\n");
1716 goto unlock_out;
1717 }
1718 ret = vpfe_get_ccdc_image_format(vpfe_dev,
1719 &vpfe_dev->fmt);
1720 if (ret < 0) {
1721 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1722 "Invalid image format at CCDC\n");
1723 goto unlock_out;
1724 }
1725 } else {
1726 ret = -EINVAL;
1727 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1728 "VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
1729 }
1730 break;
1731 default:
1732 ret = -ENOTTY;
1733 }
1734unlock_out:
1735 mutex_unlock(&vpfe_dev->lock);
1736 return ret;
1737}
1738
1739
1740
1741static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
1742 .vidioc_querycap = vpfe_querycap,
1743 .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap,
1744 .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap,
1745 .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap,
1746 .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap,
1747 .vidioc_enum_input = vpfe_enum_input,
1748 .vidioc_g_input = vpfe_g_input,
1749 .vidioc_s_input = vpfe_s_input,
1750 .vidioc_querystd = vpfe_querystd,
1751 .vidioc_s_std = vpfe_s_std,
1752 .vidioc_g_std = vpfe_g_std,
1753 .vidioc_reqbufs = vpfe_reqbufs,
1754 .vidioc_querybuf = vpfe_querybuf,
1755 .vidioc_qbuf = vpfe_qbuf,
1756 .vidioc_dqbuf = vpfe_dqbuf,
1757 .vidioc_streamon = vpfe_streamon,
1758 .vidioc_streamoff = vpfe_streamoff,
1759 .vidioc_cropcap = vpfe_cropcap,
1760 .vidioc_g_crop = vpfe_g_crop,
1761 .vidioc_s_crop = vpfe_s_crop,
1762 .vidioc_default = vpfe_param_handler,
1763};
1764
1765static struct vpfe_device *vpfe_initialize(void)
1766{
1767 struct vpfe_device *vpfe_dev;
1768
1769
1770 if ((numbuffers > 0) &&
1771 (numbuffers < config_params.min_numbuffers))
1772 numbuffers = config_params.min_numbuffers;
1773
1774
1775
1776
1777
1778 if (bufsize < config_params.min_bufsize)
1779 bufsize = config_params.min_bufsize;
1780
1781 config_params.numbuffers = numbuffers;
1782
1783 if (numbuffers)
1784 config_params.device_bufsize = bufsize;
1785
1786
1787 vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL);
1788
1789 return vpfe_dev;
1790}
1791
1792
1793
1794
1795
1796
1797static int vpfe_probe(struct platform_device *pdev)
1798{
1799 struct vpfe_subdev_info *sdinfo;
1800 struct vpfe_config *vpfe_cfg;
1801 struct resource *res1;
1802 struct vpfe_device *vpfe_dev;
1803 struct i2c_adapter *i2c_adap;
1804 struct video_device *vfd;
1805 int ret = -ENOMEM, i, j;
1806 int num_subdevs = 0;
1807
1808
1809 vpfe_dev = vpfe_initialize();
1810
1811 if (!vpfe_dev) {
1812 v4l2_err(pdev->dev.driver,
1813 "Failed to allocate memory for vpfe_dev\n");
1814 return ret;
1815 }
1816
1817 vpfe_dev->pdev = &pdev->dev;
1818
1819 if (NULL == pdev->dev.platform_data) {
1820 v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n");
1821 ret = -ENODEV;
1822 goto probe_free_dev_mem;
1823 }
1824
1825 vpfe_cfg = pdev->dev.platform_data;
1826 vpfe_dev->cfg = vpfe_cfg;
1827 if (NULL == vpfe_cfg->ccdc ||
1828 NULL == vpfe_cfg->card_name ||
1829 NULL == vpfe_cfg->sub_devs) {
1830 v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n");
1831 ret = -ENOENT;
1832 goto probe_free_dev_mem;
1833 }
1834
1835
1836 ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL);
1837 if (NULL == ccdc_cfg) {
1838 v4l2_err(pdev->dev.driver,
1839 "Memory allocation failed for ccdc_cfg\n");
1840 goto probe_free_dev_mem;
1841 }
1842
1843 mutex_lock(&ccdc_lock);
1844
1845 strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32);
1846
1847 res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1848 if (!res1) {
1849 v4l2_err(pdev->dev.driver,
1850 "Unable to get interrupt for VINT0\n");
1851 ret = -ENODEV;
1852 goto probe_free_ccdc_cfg_mem;
1853 }
1854 vpfe_dev->ccdc_irq0 = res1->start;
1855
1856
1857 res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
1858 if (!res1) {
1859 v4l2_err(pdev->dev.driver,
1860 "Unable to get interrupt for VINT1\n");
1861 ret = -ENODEV;
1862 goto probe_free_ccdc_cfg_mem;
1863 }
1864 vpfe_dev->ccdc_irq1 = res1->start;
1865
1866 ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED,
1867 "vpfe_capture0", vpfe_dev);
1868
1869 if (0 != ret) {
1870 v4l2_err(pdev->dev.driver, "Unable to request interrupt\n");
1871 goto probe_free_ccdc_cfg_mem;
1872 }
1873
1874
1875 vfd = video_device_alloc();
1876 if (NULL == vfd) {
1877 ret = -ENOMEM;
1878 v4l2_err(pdev->dev.driver, "Unable to alloc video device\n");
1879 goto probe_out_release_irq;
1880 }
1881
1882
1883 vfd->release = video_device_release;
1884 vfd->fops = &vpfe_fops;
1885 vfd->ioctl_ops = &vpfe_ioctl_ops;
1886 vfd->tvnorms = 0;
1887 vfd->v4l2_dev = &vpfe_dev->v4l2_dev;
1888 snprintf(vfd->name, sizeof(vfd->name),
1889 "%s_V%d.%d.%d",
1890 CAPTURE_DRV_NAME,
1891 (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff,
1892 (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff,
1893 (VPFE_CAPTURE_VERSION_CODE) & 0xff);
1894
1895 vpfe_dev->video_dev = vfd;
1896
1897 ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev);
1898 if (ret) {
1899 v4l2_err(pdev->dev.driver,
1900 "Unable to register v4l2 device.\n");
1901 goto probe_out_video_release;
1902 }
1903 v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n");
1904 spin_lock_init(&vpfe_dev->irqlock);
1905 spin_lock_init(&vpfe_dev->dma_queue_lock);
1906 mutex_init(&vpfe_dev->lock);
1907
1908
1909 vpfe_dev->numbuffers = config_params.numbuffers;
1910
1911
1912 v4l2_prio_init(&vpfe_dev->prio);
1913
1914 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1915 "trying to register vpfe device.\n");
1916 v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
1917 "video_dev=%x\n", (int)&vpfe_dev->video_dev);
1918 vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1919 ret = video_register_device(vpfe_dev->video_dev,
1920 VFL_TYPE_GRABBER, -1);
1921
1922 if (ret) {
1923 v4l2_err(pdev->dev.driver,
1924 "Unable to register video device.\n");
1925 goto probe_out_v4l2_unregister;
1926 }
1927
1928 v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n");
1929
1930 platform_set_drvdata(pdev, vpfe_dev);
1931
1932 video_set_drvdata(vpfe_dev->video_dev, vpfe_dev);
1933 i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id);
1934 num_subdevs = vpfe_cfg->num_subdevs;
1935 vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs,
1936 GFP_KERNEL);
1937 if (NULL == vpfe_dev->sd) {
1938 v4l2_err(&vpfe_dev->v4l2_dev,
1939 "unable to allocate memory for subdevice pointers\n");
1940 ret = -ENOMEM;
1941 goto probe_out_video_unregister;
1942 }
1943
1944 for (i = 0; i < num_subdevs; i++) {
1945 struct v4l2_input *inps;
1946
1947 sdinfo = &vpfe_cfg->sub_devs[i];
1948
1949
1950 vpfe_dev->sd[i] =
1951 v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev,
1952 i2c_adap,
1953 &sdinfo->board_info,
1954 NULL);
1955 if (vpfe_dev->sd[i]) {
1956 v4l2_info(&vpfe_dev->v4l2_dev,
1957 "v4l2 sub device %s registered\n",
1958 sdinfo->name);
1959 vpfe_dev->sd[i]->grp_id = sdinfo->grp_id;
1960
1961 for (j = 0; j < sdinfo->num_inputs; j++) {
1962 inps = &sdinfo->inputs[j];
1963 vfd->tvnorms |= inps->std;
1964 }
1965 } else {
1966 v4l2_info(&vpfe_dev->v4l2_dev,
1967 "v4l2 sub device %s register fails\n",
1968 sdinfo->name);
1969 goto probe_sd_out;
1970 }
1971 }
1972
1973
1974 vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0];
1975 vpfe_dev->v4l2_dev.ctrl_handler = vpfe_dev->sd[0]->ctrl_handler;
1976
1977
1978 mutex_unlock(&ccdc_lock);
1979 return 0;
1980
1981probe_sd_out:
1982 kfree(vpfe_dev->sd);
1983probe_out_video_unregister:
1984 video_unregister_device(vpfe_dev->video_dev);
1985probe_out_v4l2_unregister:
1986 v4l2_device_unregister(&vpfe_dev->v4l2_dev);
1987probe_out_video_release:
1988 if (!video_is_registered(vpfe_dev->video_dev))
1989 video_device_release(vpfe_dev->video_dev);
1990probe_out_release_irq:
1991 free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
1992probe_free_ccdc_cfg_mem:
1993 kfree(ccdc_cfg);
1994 mutex_unlock(&ccdc_lock);
1995probe_free_dev_mem:
1996 kfree(vpfe_dev);
1997 return ret;
1998}
1999
2000
2001
2002
2003static int vpfe_remove(struct platform_device *pdev)
2004{
2005 struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev);
2006
2007 v4l2_info(pdev->dev.driver, "vpfe_remove\n");
2008
2009 free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
2010 kfree(vpfe_dev->sd);
2011 v4l2_device_unregister(&vpfe_dev->v4l2_dev);
2012 video_unregister_device(vpfe_dev->video_dev);
2013 kfree(vpfe_dev);
2014 kfree(ccdc_cfg);
2015 return 0;
2016}
2017
2018static int vpfe_suspend(struct device *dev)
2019{
2020 return 0;
2021}
2022
2023static int vpfe_resume(struct device *dev)
2024{
2025 return 0;
2026}
2027
2028static const struct dev_pm_ops vpfe_dev_pm_ops = {
2029 .suspend = vpfe_suspend,
2030 .resume = vpfe_resume,
2031};
2032
2033static struct platform_driver vpfe_driver = {
2034 .driver = {
2035 .name = CAPTURE_DRV_NAME,
2036 .owner = THIS_MODULE,
2037 .pm = &vpfe_dev_pm_ops,
2038 },
2039 .probe = vpfe_probe,
2040 .remove = vpfe_remove,
2041};
2042
2043module_platform_driver(vpfe_driver);
2044