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2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/drivers/media/pci/bt8xx/bttv-driver.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23 
34     bttv - Bt848 frame grabber driver
....@@ -19,19 +20,6 @@
1920     Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
2021     Sponsored by OPQ Systems AB
2122 
22
-    This program is free software; you can redistribute it and/or modify
23
-    it under the terms of the GNU General Public License as published by
24
-    the Free Software Foundation; either version 2 of the License, or
25
-    (at your option) any later version.
26
-
27
-    This program is distributed in the hope that it will be useful,
28
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
29
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
30
-    GNU General Public License for more details.
31
-
32
-    You should have received a copy of the GNU General Public License
33
-    along with this program; if not, write to the Free Software
34
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
3523 */
3624 
3725 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
....@@ -515,77 +503,65 @@
515503    packed pixel formats must come first */
516504 static const struct bttv_format formats[] = {
517505 	{
518
-		.name     = "8 bpp, gray",
519506 		.fourcc   = V4L2_PIX_FMT_GREY,
520507 		.btformat = BT848_COLOR_FMT_Y8,
521508 		.depth    = 8,
522509 		.flags    = FORMAT_FLAGS_PACKED,
523510 	},{
524
-		.name     = "8 bpp, dithered color",
525511 		.fourcc   = V4L2_PIX_FMT_HI240,
526512 		.btformat = BT848_COLOR_FMT_RGB8,
527513 		.depth    = 8,
528514 		.flags    = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
529515 	},{
530
-		.name     = "15 bpp RGB, le",
531516 		.fourcc   = V4L2_PIX_FMT_RGB555,
532517 		.btformat = BT848_COLOR_FMT_RGB15,
533518 		.depth    = 16,
534519 		.flags    = FORMAT_FLAGS_PACKED,
535520 	},{
536
-		.name     = "15 bpp RGB, be",
537521 		.fourcc   = V4L2_PIX_FMT_RGB555X,
538522 		.btformat = BT848_COLOR_FMT_RGB15,
539523 		.btswap   = 0x03, /* byteswap */
540524 		.depth    = 16,
541525 		.flags    = FORMAT_FLAGS_PACKED,
542526 	},{
543
-		.name     = "16 bpp RGB, le",
544527 		.fourcc   = V4L2_PIX_FMT_RGB565,
545528 		.btformat = BT848_COLOR_FMT_RGB16,
546529 		.depth    = 16,
547530 		.flags    = FORMAT_FLAGS_PACKED,
548531 	},{
549
-		.name     = "16 bpp RGB, be",
550532 		.fourcc   = V4L2_PIX_FMT_RGB565X,
551533 		.btformat = BT848_COLOR_FMT_RGB16,
552534 		.btswap   = 0x03, /* byteswap */
553535 		.depth    = 16,
554536 		.flags    = FORMAT_FLAGS_PACKED,
555537 	},{
556
-		.name     = "24 bpp RGB, le",
557538 		.fourcc   = V4L2_PIX_FMT_BGR24,
558539 		.btformat = BT848_COLOR_FMT_RGB24,
559540 		.depth    = 24,
560541 		.flags    = FORMAT_FLAGS_PACKED,
561542 	},{
562
-		.name     = "32 bpp RGB, le",
563543 		.fourcc   = V4L2_PIX_FMT_BGR32,
564544 		.btformat = BT848_COLOR_FMT_RGB32,
565545 		.depth    = 32,
566546 		.flags    = FORMAT_FLAGS_PACKED,
567547 	},{
568
-		.name     = "32 bpp RGB, be",
569548 		.fourcc   = V4L2_PIX_FMT_RGB32,
570549 		.btformat = BT848_COLOR_FMT_RGB32,
571550 		.btswap   = 0x0f, /* byte+word swap */
572551 		.depth    = 32,
573552 		.flags    = FORMAT_FLAGS_PACKED,
574553 	},{
575
-		.name     = "4:2:2, packed, YUYV",
576554 		.fourcc   = V4L2_PIX_FMT_YUYV,
577555 		.btformat = BT848_COLOR_FMT_YUY2,
578556 		.depth    = 16,
579557 		.flags    = FORMAT_FLAGS_PACKED,
580558 	},{
581
-		.name     = "4:2:2, packed, UYVY",
582559 		.fourcc   = V4L2_PIX_FMT_UYVY,
583560 		.btformat = BT848_COLOR_FMT_YUY2,
584561 		.btswap   = 0x03, /* byteswap */
585562 		.depth    = 16,
586563 		.flags    = FORMAT_FLAGS_PACKED,
587564 	},{
588
-		.name     = "4:2:2, planar, Y-Cb-Cr",
589565 		.fourcc   = V4L2_PIX_FMT_YUV422P,
590566 		.btformat = BT848_COLOR_FMT_YCrCb422,
591567 		.depth    = 16,
....@@ -593,7 +569,6 @@
593569 		.hshift   = 1,
594570 		.vshift   = 0,
595571 	},{
596
-		.name     = "4:2:0, planar, Y-Cb-Cr",
597572 		.fourcc   = V4L2_PIX_FMT_YUV420,
598573 		.btformat = BT848_COLOR_FMT_YCrCb422,
599574 		.depth    = 12,
....@@ -601,7 +576,6 @@
601576 		.hshift   = 1,
602577 		.vshift   = 1,
603578 	},{
604
-		.name     = "4:2:0, planar, Y-Cr-Cb",
605579 		.fourcc   = V4L2_PIX_FMT_YVU420,
606580 		.btformat = BT848_COLOR_FMT_YCrCb422,
607581 		.depth    = 12,
....@@ -609,7 +583,6 @@
609583 		.hshift   = 1,
610584 		.vshift   = 1,
611585 	},{
612
-		.name     = "4:1:1, planar, Y-Cb-Cr",
613586 		.fourcc   = V4L2_PIX_FMT_YUV411P,
614587 		.btformat = BT848_COLOR_FMT_YCrCb411,
615588 		.depth    = 12,
....@@ -617,7 +590,6 @@
617590 		.hshift   = 2,
618591 		.vshift   = 0,
619592 	},{
620
-		.name     = "4:1:0, planar, Y-Cb-Cr",
621593 		.fourcc   = V4L2_PIX_FMT_YUV410,
622594 		.btformat = BT848_COLOR_FMT_YCrCb411,
623595 		.depth    = 9,
....@@ -625,7 +597,6 @@
625597 		.hshift   = 2,
626598 		.vshift   = 2,
627599 	},{
628
-		.name     = "4:1:0, planar, Y-Cr-Cb",
629600 		.fourcc   = V4L2_PIX_FMT_YVU410,
630601 		.btformat = BT848_COLOR_FMT_YCrCb411,
631602 		.depth    = 9,
....@@ -633,7 +604,6 @@
633604 		.hshift   = 2,
634605 		.vshift   = 2,
635606 	},{
636
-		.name     = "raw scanlines",
637607 		.fourcc   = -1,
638608 		.btformat = BT848_COLOR_FMT_RAW,
639609 		.depth    = 8,
....@@ -2040,7 +2010,6 @@
20402010 	max_width = max_width & width_mask;
20412011 
20422012 	/* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2043
-	min_height = min_height;
20442013 	/* Min. scale factor is 1:1. */
20452014 	max_height >>= !V4L2_FIELD_HAS_BOTH(field);
20462015 
....@@ -2363,7 +2332,7 @@
23632332 			field = V4L2_FIELD_SEQ_TB;
23642333 			break;
23652334 		}
2366
-		/* fall through */
2335
+		fallthrough;
23672336 	default: /* FIELD_ANY case */
23682337 		height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
23692338 		field = (f->fmt.pix.height > height2)
....@@ -2436,7 +2405,7 @@
24362405 
24372406 	f->fmt.pix.field = field;
24382407 
2439
-	/* update our state informations */
2408
+	/* update our state information */
24402409 	fh->fmt              = fmt;
24412410 	fh->cap.field        = f->fmt.pix.field;
24422411 	fh->cap.last         = V4L2_FIELD_NONE;
....@@ -2466,28 +2435,27 @@
24662435 static int bttv_querycap(struct file *file, void  *priv,
24672436 				struct v4l2_capability *cap)
24682437 {
2469
-	struct video_device *vdev = video_devdata(file);
24702438 	struct bttv_fh *fh = priv;
24712439 	struct bttv *btv = fh->btv;
24722440 
24732441 	if (0 == v4l2)
24742442 		return -EINVAL;
24752443 
2476
-	strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2477
-	strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card));
2444
+	strscpy(cap->driver, "bttv", sizeof(cap->driver));
2445
+	strscpy(cap->card, btv->video_dev.name, sizeof(cap->card));
24782446 	snprintf(cap->bus_info, sizeof(cap->bus_info),
24792447 		 "PCI:%s", pci_name(btv->c.pci));
2480
-	cap->capabilities =
2481
-		V4L2_CAP_VIDEO_CAPTURE |
2482
-		V4L2_CAP_READWRITE |
2483
-		V4L2_CAP_STREAMING |
2484
-		V4L2_CAP_DEVICE_CAPS;
2448
+	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
2449
+			    V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
24852450 	if (no_overlay <= 0)
24862451 		cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
24872452 	if (video_is_registered(&btv->vbi_dev))
24882453 		cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2489
-	if (video_is_registered(&btv->radio_dev))
2454
+	if (video_is_registered(&btv->radio_dev)) {
24902455 		cap->capabilities |= V4L2_CAP_RADIO;
2456
+		if (btv->has_tea575x)
2457
+			cap->capabilities |= V4L2_CAP_HW_FREQ_SEEK;
2458
+	}
24912459 
24922460 	/*
24932461 	 * No need to lock here: those vars are initialized during board
....@@ -2497,27 +2465,6 @@
24972465 		cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
24982466 	if (btv->tuner_type != TUNER_ABSENT)
24992467 		cap->capabilities |= V4L2_CAP_TUNER;
2500
-	if (vdev->vfl_type == VFL_TYPE_GRABBER)
2501
-		cap->device_caps = cap->capabilities &
2502
-			(V4L2_CAP_VIDEO_CAPTURE |
2503
-			 V4L2_CAP_READWRITE |
2504
-			 V4L2_CAP_STREAMING |
2505
-			 V4L2_CAP_VIDEO_OVERLAY |
2506
-			 V4L2_CAP_TUNER);
2507
-	else if (vdev->vfl_type == VFL_TYPE_VBI)
2508
-		cap->device_caps = cap->capabilities &
2509
-			(V4L2_CAP_VBI_CAPTURE |
2510
-			 V4L2_CAP_READWRITE |
2511
-			 V4L2_CAP_STREAMING |
2512
-			 V4L2_CAP_TUNER);
2513
-	else {
2514
-		cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2515
-		if (btv->has_saa6588)
2516
-			cap->device_caps |= V4L2_CAP_READWRITE |
2517
-						V4L2_CAP_RDS_CAPTURE;
2518
-		if (btv->has_tea575x)
2519
-			cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
2520
-	}
25212468 	return 0;
25222469 }
25232470 
....@@ -2535,7 +2482,6 @@
25352482 		return -EINVAL;
25362483 
25372484 	f->pixelformat = formats[i].fourcc;
2538
-	strlcpy(f->description, formats[i].name, sizeof(f->description));
25392485 
25402486 	return i;
25412487 }
....@@ -2782,7 +2728,7 @@
27822728 	t->rxsubchans = V4L2_TUNER_SUB_MONO;
27832729 	t->capability = V4L2_TUNER_CAP_NORM;
27842730 	bttv_call_all(btv, tuner, g_tuner, t);
2785
-	strcpy(t->name, "Television");
2731
+	strscpy(t->name, "Television", sizeof(t->name));
27862732 	t->type       = V4L2_TUNER_ANALOG_TV;
27872733 	if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
27882734 		t->signal = 0xffff;
....@@ -2793,19 +2739,17 @@
27932739 	return 0;
27942740 }
27952741 
2796
-static int bttv_cropcap(struct file *file, void *priv,
2797
-				struct v4l2_cropcap *cap)
2742
+static int bttv_g_pixelaspect(struct file *file, void *priv,
2743
+			      int type, struct v4l2_fract *f)
27982744 {
27992745 	struct bttv_fh *fh = priv;
28002746 	struct bttv *btv = fh->btv;
28012747 
2802
-	if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2803
-	    cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2748
+	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
28042749 		return -EINVAL;
28052750 
28062751 	/* defrect and bounds are set via g_selection */
2807
-	cap->pixelaspect = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect;
2808
-
2752
+	*f = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect;
28092753 	return 0;
28102754 }
28112755 
....@@ -3020,7 +2964,7 @@
30202964 
30212965 	dprintk("open dev=%s\n", video_device_node_name(vdev));
30222966 
3023
-	if (vdev->vfl_type == VFL_TYPE_GRABBER) {
2967
+	if (vdev->vfl_type == VFL_TYPE_VIDEO) {
30242968 		type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
30252969 	} else if (vdev->vfl_type == VFL_TYPE_VBI) {
30262970 		type = V4L2_BUF_TYPE_VBI_CAPTURE;
....@@ -3067,7 +3011,7 @@
30673011 	   V4L2 apps we now reset the cropping parameters as seen through
30683012 	   this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks
30693013 	   will use btv->crop[0], the default cropping parameters for the
3070
-	   current video standard, and VIDIOC_S_FMT will not implicitely
3014
+	   current video standard, and VIDIOC_S_FMT will not implicitly
30713015 	   change the cropping parameters until VIDIOC_S_SELECTION has been
30723016 	   called. */
30733017 	fh->do_crop = !reset_crop; /* module parameter */
....@@ -3163,7 +3107,7 @@
31633107 	.vidioc_g_fmt_vbi_cap           = bttv_g_fmt_vbi_cap,
31643108 	.vidioc_try_fmt_vbi_cap         = bttv_try_fmt_vbi_cap,
31653109 	.vidioc_s_fmt_vbi_cap           = bttv_s_fmt_vbi_cap,
3166
-	.vidioc_cropcap                 = bttv_cropcap,
3110
+	.vidioc_g_pixelaspect           = bttv_g_pixelaspect,
31673111 	.vidioc_reqbufs                 = bttv_reqbufs,
31683112 	.vidioc_querybuf                = bttv_querybuf,
31693113 	.vidioc_qbuf                    = bttv_qbuf,
....@@ -3257,7 +3201,7 @@
32573201 
32583202 	if (0 != t->index)
32593203 		return -EINVAL;
3260
-	strcpy(t->name, "Radio");
3204
+	strscpy(t->name, "Radio", sizeof(t->name));
32613205 	t->type = V4L2_TUNER_RADIO;
32623206 	radio_enable(btv);
32633207 
....@@ -3603,9 +3547,7 @@
36033547 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
36043548 		      struct bttv_buffer_set *curr, unsigned int state)
36053549 {
3606
-	struct timeval ts;
3607
-
3608
-	v4l2_get_timestamp(&ts);
3550
+	u64 ts = ktime_get_ns();
36093551 
36103552 	if (wakeup->top == wakeup->bottom) {
36113553 		if (NULL != wakeup->top && curr->top != wakeup->top) {
....@@ -3646,7 +3588,7 @@
36463588 	if (NULL == wakeup)
36473589 		return;
36483590 
3649
-	v4l2_get_timestamp(&wakeup->vb.ts);
3591
+	wakeup->vb.ts = ktime_get_ns();
36503592 	wakeup->vb.field_count = btv->field_count;
36513593 	wakeup->vb.state = state;
36523594 	wake_up(&wakeup->vb.done);
....@@ -3716,7 +3658,7 @@
37163658 	btv->curr.top = NULL;
37173659 	bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
37183660 
3719
-	v4l2_get_timestamp(&wakeup->vb.ts);
3661
+	wakeup->vb.ts = ktime_get_ns();
37203662 	wakeup->vb.field_count = btv->field_count;
37213663 	wakeup->vb.state = VIDEOBUF_DONE;
37223664 	wake_up(&wakeup->vb.done);
....@@ -3956,8 +3898,14 @@
39563898 
39573899 	/* video */
39583900 	vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
3901
+	btv->video_dev.device_caps = V4L2_CAP_VIDEO_CAPTURE |
3902
+				     V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
3903
+	if (btv->tuner_type != TUNER_ABSENT)
3904
+		btv->video_dev.device_caps |= V4L2_CAP_TUNER;
3905
+	if (no_overlay <= 0)
3906
+		btv->video_dev.device_caps |= V4L2_CAP_VIDEO_OVERLAY;
39593907 
3960
-	if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
3908
+	if (video_register_device(&btv->video_dev, VFL_TYPE_VIDEO,
39613909 				  video_nr[btv->c.nr]) < 0)
39623910 		goto err;
39633911 	pr_info("%d: registered device %s\n",
....@@ -3970,6 +3918,10 @@
39703918 
39713919 	/* vbi */
39723920 	vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
3921
+	btv->vbi_dev.device_caps = V4L2_CAP_VBI_CAPTURE | V4L2_CAP_READWRITE |
3922
+				   V4L2_CAP_STREAMING;
3923
+	if (btv->tuner_type != TUNER_ABSENT)
3924
+		btv->vbi_dev.device_caps |= V4L2_CAP_TUNER;
39733925 
39743926 	if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
39753927 				  vbi_nr[btv->c.nr]) < 0)
....@@ -3981,6 +3933,12 @@
39813933 		return 0;
39823934 	/* radio */
39833935 	vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
3936
+	btv->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
3937
+	if (btv->has_saa6588)
3938
+		btv->radio_dev.device_caps |= V4L2_CAP_READWRITE |
3939
+					      V4L2_CAP_RDS_CAPTURE;
3940
+	if (btv->has_tea575x)
3941
+		btv->radio_dev.device_caps |= V4L2_CAP_HW_FREQ_SEEK;
39843942 	btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
39853943 	if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
39863944 				  radio_nr[btv->c.nr]) < 0)
....@@ -4214,7 +4172,7 @@
42144172 	/* register video4linux + input */
42154173 	if (!bttv_tvcards[btv->c.type].no_video) {
42164174 		v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
4217
-				v4l2_ctrl_radio_filter);
4175
+				v4l2_ctrl_radio_filter, false);
42184176 		if (btv->radio_ctrl_handler.error) {
42194177 			result = btv->radio_ctrl_handler.error;
42204178 			goto fail2;