2 * vivid-vid-common.c - common video support functions.
4 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
6 * This program is free software; you may redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
11 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
12 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
13 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
14 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
15 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
16 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 #include <linux/errno.h>
21 #include <linux/kernel.h>
22 #include <linux/sched.h>
23 #include <linux/videodev2.h>
24 #include <linux/v4l2-dv-timings.h>
25 #include <media/v4l2-common.h>
26 #include <media/v4l2-event.h>
27 #include <media/v4l2-dv-timings.h>
29 #include "vivid-core.h"
30 #include "vivid-vid-common.h"
32 const struct v4l2_dv_timings_cap vivid_dv_timings_cap = {
33 .type = V4L2_DV_BT_656_1120,
34 /* keep this initialization for compatibility with GCC < 4.4.6 */
36 V4L2_INIT_BT_TIMINGS(16, MAX_WIDTH, 16, MAX_HEIGHT, 14000000, 775000000,
37 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
38 V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
39 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
42 /* ------------------------------------------------------------------
44 ------------------------------------------------------------------*/
46 struct vivid_fmt vivid_formats[] = {
48 .fourcc = V4L2_PIX_FMT_YUYV,
49 .vdownsampling = { 1 },
54 .data_offset = { PLANE0_DATA_OFFSET },
57 .fourcc = V4L2_PIX_FMT_UYVY,
58 .vdownsampling = { 1 },
65 .fourcc = V4L2_PIX_FMT_YVYU,
66 .vdownsampling = { 1 },
73 .fourcc = V4L2_PIX_FMT_VYUY,
74 .vdownsampling = { 1 },
81 .fourcc = V4L2_PIX_FMT_YUV422P,
82 .vdownsampling = { 1, 1, 1 },
83 .bit_depth = { 8, 4, 4 },
89 .fourcc = V4L2_PIX_FMT_YUV420,
90 .vdownsampling = { 1, 2, 2 },
91 .bit_depth = { 8, 4, 4 },
97 .fourcc = V4L2_PIX_FMT_YVU420,
98 .vdownsampling = { 1, 2, 2 },
99 .bit_depth = { 8, 4, 4 },
105 .fourcc = V4L2_PIX_FMT_NV12,
106 .vdownsampling = { 1, 2 },
107 .bit_depth = { 8, 8 },
113 .fourcc = V4L2_PIX_FMT_NV21,
114 .vdownsampling = { 1, 2 },
115 .bit_depth = { 8, 8 },
121 .fourcc = V4L2_PIX_FMT_NV16,
122 .vdownsampling = { 1, 1 },
123 .bit_depth = { 8, 8 },
129 .fourcc = V4L2_PIX_FMT_NV61,
130 .vdownsampling = { 1, 1 },
131 .bit_depth = { 8, 8 },
137 .fourcc = V4L2_PIX_FMT_NV24,
138 .vdownsampling = { 1, 1 },
139 .bit_depth = { 8, 16 },
145 .fourcc = V4L2_PIX_FMT_NV42,
146 .vdownsampling = { 1, 1 },
147 .bit_depth = { 8, 16 },
153 .fourcc = V4L2_PIX_FMT_YUV555, /* uuuvvvvv ayyyyyuu */
154 .vdownsampling = { 1 },
158 .alpha_mask = 0x8000,
161 .fourcc = V4L2_PIX_FMT_YUV565, /* uuuvvvvv yyyyyuuu */
162 .vdownsampling = { 1 },
168 .fourcc = V4L2_PIX_FMT_YUV444, /* uuuuvvvv aaaayyyy */
169 .vdownsampling = { 1 },
173 .alpha_mask = 0xf000,
176 .fourcc = V4L2_PIX_FMT_YUV32, /* ayuv */
177 .vdownsampling = { 1 },
181 .alpha_mask = 0x000000ff,
184 .fourcc = V4L2_PIX_FMT_GREY,
185 .vdownsampling = { 1 },
192 .fourcc = V4L2_PIX_FMT_Y16,
193 .vdownsampling = { 1 },
200 .fourcc = V4L2_PIX_FMT_Y16_BE,
201 .vdownsampling = { 1 },
208 .fourcc = V4L2_PIX_FMT_RGB332, /* rrrgggbb */
209 .vdownsampling = { 1 },
215 .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
216 .vdownsampling = { 1 },
220 .can_do_overlay = true,
223 .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
224 .vdownsampling = { 1 },
228 .can_do_overlay = true,
231 .fourcc = V4L2_PIX_FMT_RGB444, /* xxxxrrrr ggggbbbb */
232 .vdownsampling = { 1 },
238 .fourcc = V4L2_PIX_FMT_XRGB444, /* xxxxrrrr ggggbbbb */
239 .vdownsampling = { 1 },
245 .fourcc = V4L2_PIX_FMT_ARGB444, /* aaaarrrr ggggbbbb */
246 .vdownsampling = { 1 },
250 .alpha_mask = 0x00f0,
253 .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
254 .vdownsampling = { 1 },
258 .can_do_overlay = true,
261 .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
262 .vdownsampling = { 1 },
266 .can_do_overlay = true,
269 .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
270 .vdownsampling = { 1 },
274 .can_do_overlay = true,
275 .alpha_mask = 0x8000,
278 .fourcc = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
279 .vdownsampling = { 1 },
285 .fourcc = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */
286 .vdownsampling = { 1 },
292 .fourcc = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */
293 .vdownsampling = { 1 },
297 .alpha_mask = 0x0080,
300 .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */
301 .vdownsampling = { 1 },
307 .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */
308 .vdownsampling = { 1 },
314 .fourcc = V4L2_PIX_FMT_BGR666, /* bbbbbbgg ggggrrrr rrxxxxxx */
315 .vdownsampling = { 1 },
321 .fourcc = V4L2_PIX_FMT_RGB32, /* xrgb */
322 .vdownsampling = { 1 },
328 .fourcc = V4L2_PIX_FMT_BGR32, /* bgrx */
329 .vdownsampling = { 1 },
335 .fourcc = V4L2_PIX_FMT_XRGB32, /* xrgb */
336 .vdownsampling = { 1 },
342 .fourcc = V4L2_PIX_FMT_XBGR32, /* bgrx */
343 .vdownsampling = { 1 },
349 .fourcc = V4L2_PIX_FMT_ARGB32, /* argb */
350 .vdownsampling = { 1 },
354 .alpha_mask = 0x000000ff,
357 .fourcc = V4L2_PIX_FMT_ABGR32, /* bgra */
358 .vdownsampling = { 1 },
362 .alpha_mask = 0xff000000,
365 .fourcc = V4L2_PIX_FMT_SBGGR8, /* Bayer BG/GR */
366 .vdownsampling = { 1 },
372 .fourcc = V4L2_PIX_FMT_SGBRG8, /* Bayer GB/RG */
373 .vdownsampling = { 1 },
379 .fourcc = V4L2_PIX_FMT_SGRBG8, /* Bayer GR/BG */
380 .vdownsampling = { 1 },
386 .fourcc = V4L2_PIX_FMT_SRGGB8, /* Bayer RG/GB */
387 .vdownsampling = { 1 },
393 .fourcc = V4L2_PIX_FMT_SBGGR10, /* Bayer BG/GR */
394 .vdownsampling = { 1 },
400 .fourcc = V4L2_PIX_FMT_SGBRG10, /* Bayer GB/RG */
401 .vdownsampling = { 1 },
407 .fourcc = V4L2_PIX_FMT_SGRBG10, /* Bayer GR/BG */
408 .vdownsampling = { 1 },
414 .fourcc = V4L2_PIX_FMT_SRGGB10, /* Bayer RG/GB */
415 .vdownsampling = { 1 },
421 .fourcc = V4L2_PIX_FMT_SBGGR12, /* Bayer BG/GR */
422 .vdownsampling = { 1 },
428 .fourcc = V4L2_PIX_FMT_SGBRG12, /* Bayer GB/RG */
429 .vdownsampling = { 1 },
435 .fourcc = V4L2_PIX_FMT_SGRBG12, /* Bayer GR/BG */
436 .vdownsampling = { 1 },
442 .fourcc = V4L2_PIX_FMT_SRGGB12, /* Bayer RG/GB */
443 .vdownsampling = { 1 },
449 /* Multiplanar formats */
452 .fourcc = V4L2_PIX_FMT_NV16M,
453 .vdownsampling = { 1, 1 },
454 .bit_depth = { 8, 8 },
458 .data_offset = { PLANE0_DATA_OFFSET, 0 },
461 .fourcc = V4L2_PIX_FMT_NV61M,
462 .vdownsampling = { 1, 1 },
463 .bit_depth = { 8, 8 },
467 .data_offset = { 0, PLANE0_DATA_OFFSET },
470 .fourcc = V4L2_PIX_FMT_YUV420M,
471 .vdownsampling = { 1, 2, 2 },
472 .bit_depth = { 8, 4, 4 },
478 .fourcc = V4L2_PIX_FMT_YVU420M,
479 .vdownsampling = { 1, 2, 2 },
480 .bit_depth = { 8, 4, 4 },
486 .fourcc = V4L2_PIX_FMT_NV12M,
487 .vdownsampling = { 1, 2 },
488 .bit_depth = { 8, 8 },
494 .fourcc = V4L2_PIX_FMT_NV21M,
495 .vdownsampling = { 1, 2 },
496 .bit_depth = { 8, 8 },
502 .fourcc = V4L2_PIX_FMT_YUV422M,
503 .vdownsampling = { 1, 1, 1 },
504 .bit_depth = { 8, 4, 4 },
510 .fourcc = V4L2_PIX_FMT_YVU422M,
511 .vdownsampling = { 1, 1, 1 },
512 .bit_depth = { 8, 4, 4 },
518 .fourcc = V4L2_PIX_FMT_YUV444M,
519 .vdownsampling = { 1, 1, 1 },
520 .bit_depth = { 8, 8, 8 },
526 .fourcc = V4L2_PIX_FMT_YVU444M,
527 .vdownsampling = { 1, 1, 1 },
528 .bit_depth = { 8, 8, 8 },
535 /* There are this many multiplanar formats in the list */
536 #define VIVID_MPLANAR_FORMATS 10
538 const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
540 const struct vivid_fmt *fmt;
543 for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
544 fmt = &vivid_formats[k];
545 if (fmt->fourcc == pixelformat)
546 if (fmt->buffers == 1 || dev->multiplanar)
553 bool vivid_vid_can_loop(struct vivid_dev *dev)
555 if (dev->src_rect.width != dev->sink_rect.width ||
556 dev->src_rect.height != dev->sink_rect.height)
558 if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
560 if (dev->field_cap != dev->field_out)
563 * While this can be supported, it is just too much work
564 * to actually implement.
566 if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
567 dev->field_cap == V4L2_FIELD_SEQ_BT)
569 if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
570 if (!(dev->std_cap & V4L2_STD_525_60) !=
571 !(dev->std_out & V4L2_STD_525_60))
575 if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
580 void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
582 struct v4l2_event ev = {
583 .type = V4L2_EVENT_SOURCE_CHANGE,
584 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
588 for (i = 0; i < dev->num_inputs; i++) {
590 if (dev->input_type[i] == type) {
591 if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
592 v4l2_event_queue(&dev->vid_cap_dev, &ev);
593 if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
594 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
600 * Conversion function that converts a single-planar format to a
601 * single-plane multiplanar format.
603 void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
605 struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
606 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
607 const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
608 bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
610 memset(mp->reserved, 0, sizeof(mp->reserved));
611 mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
612 V4L2_CAP_VIDEO_CAPTURE_MPLANE;
613 mp->width = pix->width;
614 mp->height = pix->height;
615 mp->pixelformat = pix->pixelformat;
616 mp->field = pix->field;
617 mp->colorspace = pix->colorspace;
618 mp->xfer_func = pix->xfer_func;
619 mp->ycbcr_enc = pix->ycbcr_enc;
620 mp->quantization = pix->quantization;
622 mp->flags = pix->flags;
623 ppix->sizeimage = pix->sizeimage;
624 ppix->bytesperline = pix->bytesperline;
625 memset(ppix->reserved, 0, sizeof(ppix->reserved));
628 int fmt_sp2mp_func(struct file *file, void *priv,
629 struct v4l2_format *f, fmtfunc func)
631 struct v4l2_format fmt;
632 struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
633 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
634 struct v4l2_pix_format *pix = &f->fmt.pix;
637 /* Converts to a mplane format */
639 /* Passes it to the generic mplane format function */
640 ret = func(file, priv, &fmt);
641 /* Copies back the mplane data to the single plane format */
642 pix->width = mp->width;
643 pix->height = mp->height;
644 pix->pixelformat = mp->pixelformat;
645 pix->field = mp->field;
646 pix->colorspace = mp->colorspace;
647 pix->xfer_func = mp->xfer_func;
648 pix->ycbcr_enc = mp->ycbcr_enc;
649 pix->quantization = mp->quantization;
650 pix->sizeimage = ppix->sizeimage;
651 pix->bytesperline = ppix->bytesperline;
652 pix->flags = mp->flags;
656 int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
658 unsigned w = r->width;
659 unsigned h = r->height;
661 /* sanitize w and h in case someone passes ~0 as the value */
664 if (!(flags & V4L2_SEL_FLAG_LE)) {
672 if (!(flags & V4L2_SEL_FLAG_GE)) {
682 if (w > MAX_WIDTH || h > MAX_HEIGHT)
688 /* sanitize left and top in case someone passes ~0 as the value */
691 if (r->left + w > MAX_WIDTH)
692 r->left = MAX_WIDTH - w;
693 if (r->top + h > MAX_HEIGHT)
694 r->top = MAX_HEIGHT - h;
695 if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
696 (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
697 (r->width != w || r->height != h))
704 int vivid_enum_fmt_vid(struct file *file, void *priv,
705 struct v4l2_fmtdesc *f)
707 struct vivid_dev *dev = video_drvdata(file);
708 const struct vivid_fmt *fmt;
710 if (f->index >= ARRAY_SIZE(vivid_formats) -
711 (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
714 fmt = &vivid_formats[f->index];
716 f->pixelformat = fmt->fourcc;
720 int vidioc_enum_fmt_vid_mplane(struct file *file, void *priv,
721 struct v4l2_fmtdesc *f)
723 struct vivid_dev *dev = video_drvdata(file);
725 if (!dev->multiplanar)
727 return vivid_enum_fmt_vid(file, priv, f);
730 int vidioc_enum_fmt_vid(struct file *file, void *priv,
731 struct v4l2_fmtdesc *f)
733 struct vivid_dev *dev = video_drvdata(file);
735 if (dev->multiplanar)
737 return vivid_enum_fmt_vid(file, priv, f);
740 int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
742 struct vivid_dev *dev = video_drvdata(file);
743 struct video_device *vdev = video_devdata(file);
745 if (vdev->vfl_dir == VFL_DIR_RX) {
746 if (!vivid_is_sdtv_cap(dev))
750 if (!vivid_is_svid_out(dev))
757 int vidioc_g_dv_timings(struct file *file, void *_fh,
758 struct v4l2_dv_timings *timings)
760 struct vivid_dev *dev = video_drvdata(file);
761 struct video_device *vdev = video_devdata(file);
763 if (vdev->vfl_dir == VFL_DIR_RX) {
764 if (!vivid_is_hdmi_cap(dev))
766 *timings = dev->dv_timings_cap;
768 if (!vivid_is_hdmi_out(dev))
770 *timings = dev->dv_timings_out;
775 int vidioc_enum_dv_timings(struct file *file, void *_fh,
776 struct v4l2_enum_dv_timings *timings)
778 struct vivid_dev *dev = video_drvdata(file);
779 struct video_device *vdev = video_devdata(file);
781 if (vdev->vfl_dir == VFL_DIR_RX) {
782 if (!vivid_is_hdmi_cap(dev))
785 if (!vivid_is_hdmi_out(dev))
788 return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
792 int vidioc_dv_timings_cap(struct file *file, void *_fh,
793 struct v4l2_dv_timings_cap *cap)
795 struct vivid_dev *dev = video_drvdata(file);
796 struct video_device *vdev = video_devdata(file);
798 if (vdev->vfl_dir == VFL_DIR_RX) {
799 if (!vivid_is_hdmi_cap(dev))
802 if (!vivid_is_hdmi_out(dev))
805 *cap = vivid_dv_timings_cap;
809 int vidioc_g_edid(struct file *file, void *_fh,
810 struct v4l2_edid *edid)
812 struct vivid_dev *dev = video_drvdata(file);
813 struct video_device *vdev = video_devdata(file);
814 struct cec_adapter *adap;
816 memset(edid->reserved, 0, sizeof(edid->reserved));
817 if (vdev->vfl_dir == VFL_DIR_RX) {
818 if (edid->pad >= dev->num_inputs)
820 if (dev->input_type[edid->pad] != HDMI)
822 adap = dev->cec_rx_adap;
824 unsigned int bus_idx;
826 if (edid->pad >= dev->num_outputs)
828 if (dev->output_type[edid->pad] != HDMI)
830 bus_idx = dev->cec_output2bus_map[edid->pad];
831 adap = dev->cec_tx_adap[bus_idx];
833 if (edid->start_block == 0 && edid->blocks == 0) {
834 edid->blocks = dev->edid_blocks;
837 if (dev->edid_blocks == 0)
839 if (edid->start_block >= dev->edid_blocks)
841 if (edid->start_block + edid->blocks > dev->edid_blocks)
842 edid->blocks = dev->edid_blocks - edid->start_block;
843 memcpy(edid->edid, dev->edid, edid->blocks * 128);
845 cec_set_edid_phys_addr(edid->edid, edid->blocks * 128, adap->phys_addr);