// SPDX-License-Identifier: GPL-2.0-only /* * vivid-vid-cap.c - video capture support functions. * * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include "vivid-core.h" #include "vivid-vid-common.h" #include "vivid-kthread-cap.h" #include "vivid-vid-cap.h" /* timeperframe: min/max and default */ static const struct v4l2_fract tpf_min = {.numerator = 1, .denominator = FPS_MAX}, tpf_max = {.numerator = FPS_MAX, .denominator = 1}; static const struct vivid_fmt formats_ovl[] = { { .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ .vdownsampling = { 1 }, .bit_depth = { 16 }, .planes = 1, .buffers = 1, }, { .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */ .vdownsampling = { 1 }, .bit_depth = { 16 }, .planes = 1, .buffers = 1, }, { .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */ .vdownsampling = { 1 }, .bit_depth = { 16 }, .planes = 1, .buffers = 1, }, }; /* The number of discrete webcam framesizes */ #define VIVID_WEBCAM_SIZES 6 /* The number of discrete webcam frameintervals */ #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2) /* Sizes must be in increasing order */ static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = { { 320, 180 }, { 640, 360 }, { 640, 480 }, { 1280, 720 }, { 1920, 1080 }, { 3840, 2160 }, }; /* * Intervals must be in increasing order and there must be twice as many * elements in this array as there are in webcam_sizes. */ static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = { { 1, 1 }, { 1, 2 }, { 1, 4 }, { 1, 5 }, { 1, 10 }, { 2, 25 }, { 1, 15 }, { 1, 25 }, { 1, 30 }, { 1, 40 }, { 1, 50 }, { 1, 60 }, }; static int vid_cap_queue_setup(struct vb2_queue *vq, unsigned *nbuffers, unsigned *nplanes, unsigned sizes[], struct device *alloc_devs[]) { struct vivid_dev *dev = vb2_get_drv_priv(vq); unsigned buffers = tpg_g_buffers(&dev->tpg); unsigned h = dev->fmt_cap_rect.height; unsigned p; if (dev->field_cap == V4L2_FIELD_ALTERNATE) { /* * You cannot use read() with FIELD_ALTERNATE since the field * information (TOP/BOTTOM) cannot be passed back to the user. */ if (vb2_fileio_is_active(vq)) return -EINVAL; } if (dev->queue_setup_error) { /* * Error injection: test what happens if queue_setup() returns * an error. */ dev->queue_setup_error = false; return -EINVAL; } if (*nplanes) { /* * Check if the number of requested planes match * the number of buffers in the current format. You can't mix that. */ if (*nplanes != buffers) return -EINVAL; for (p = 0; p < buffers; p++) { if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h + dev->fmt_cap->data_offset[p]) return -EINVAL; } } else { for (p = 0; p < buffers; p++) sizes[p] = tpg_g_line_width(&dev->tpg, p) * h + dev->fmt_cap->data_offset[p]; } if (vq->num_buffers + *nbuffers < 2) *nbuffers = 2 - vq->num_buffers; *nplanes = buffers; dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers); for (p = 0; p < buffers; p++) dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]); return 0; } static int vid_cap_buf_prepare(struct vb2_buffer *vb) { struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); unsigned long size; unsigned buffers = tpg_g_buffers(&dev->tpg); unsigned p; dprintk(dev, 1, "%s\n", __func__); if (WARN_ON(NULL == dev->fmt_cap)) return -EINVAL; if (dev->buf_prepare_error) { /* * Error injection: test what happens if buf_prepare() returns * an error. */ dev->buf_prepare_error = false; return -EINVAL; } for (p = 0; p < buffers; p++) { size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height + dev->fmt_cap->data_offset[p]; if (vb2_plane_size(vb, p) < size) { dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n", __func__, p, vb2_plane_size(vb, p), size); return -EINVAL; } vb2_set_plane_payload(vb, p, size); vb->planes[p].data_offset = dev->fmt_cap->data_offset[p]; } return 0; } static void vid_cap_buf_finish(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); struct v4l2_timecode *tc = &vbuf->timecode; unsigned fps = 25; unsigned seq = vbuf->sequence; if (!vivid_is_sdtv_cap(dev)) return; /* * Set the timecode. Rarely used, so it is interesting to * test this. */ vbuf->flags |= V4L2_BUF_FLAG_TIMECODE; if (dev->std_cap & V4L2_STD_525_60) fps = 30; tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS; tc->flags = 0; tc->frames = seq % fps; tc->seconds = (seq / fps) % 60; tc->minutes = (seq / (60 * fps)) % 60; tc->hours = (seq / (60 * 60 * fps)) % 24; } static void vid_cap_buf_queue(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); dprintk(dev, 1, "%s\n", __func__); spin_lock(&dev->slock); list_add_tail(&buf->list, &dev->vid_cap_active); spin_unlock(&dev->slock); } static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count) { struct vivid_dev *dev = vb2_get_drv_priv(vq); unsigned i; int err; if (vb2_is_streaming(&dev->vb_vid_out_q)) dev->can_loop_video = vivid_vid_can_loop(dev); dev->vid_cap_seq_count = 0; dprintk(dev, 1, "%s\n", __func__); for (i = 0; i < VIDEO_MAX_FRAME; i++) dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100; if (dev->start_streaming_error) { dev->start_streaming_error = false; err = -EINVAL; } else { err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming); } if (err) { struct vivid_buffer *buf, *tmp; list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) { list_del(&buf->list); vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); } } return err; } /* abort streaming and wait for last buffer */ static void vid_cap_stop_streaming(struct vb2_queue *vq) { struct vivid_dev *dev = vb2_get_drv_priv(vq); dprintk(dev, 1, "%s\n", __func__); vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming); dev->can_loop_video = false; } static void vid_cap_buf_request_complete(struct vb2_buffer *vb) { struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap); } const struct vb2_ops vivid_vid_cap_qops = { .queue_setup = vid_cap_queue_setup, .buf_prepare = vid_cap_buf_prepare, .buf_finish = vid_cap_buf_finish, .buf_queue = vid_cap_buf_queue, .start_streaming = vid_cap_start_streaming, .stop_streaming = vid_cap_stop_streaming, .buf_request_complete = vid_cap_buf_request_complete, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, }; /* * Determine the 'picture' quality based on the current TV frequency: either * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off * signal or NOISE for no signal. */ void vivid_update_quality(struct vivid_dev *dev) { unsigned freq_modulus; if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) { /* * The 'noise' will only be replaced by the actual video * if the output video matches the input video settings. */ tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); return; } if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) { tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); return; } if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) { tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0); return; } if (!vivid_is_tv_cap(dev)) { tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0); return; } /* * There is a fake channel every 6 MHz at 49.25, 55.25, etc. * From +/- 0.25 MHz around the channel there is color, and from * +/- 1 MHz there is grayscale (chroma is lost). * Everywhere else it is just noise. */ freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16); if (freq_modulus > 2 * 16) { tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f); return; } if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/) tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0); else tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0); } /* * Get the current picture quality and the associated afc value. */ static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc) { unsigned freq_modulus; if (afc) *afc = 0; if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR || tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) return tpg_g_quality(&dev->tpg); /* * There is a fake channel every 6 MHz at 49.25, 55.25, etc. * From +/- 0.25 MHz around the channel there is color, and from * +/- 1 MHz there is grayscale (chroma is lost). * Everywhere else it is just gray. */ freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16); if (afc) *afc = freq_modulus - 1 * 16; return TPG_QUAL_GRAY; } enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev) { if (vivid_is_sdtv_cap(dev)) return dev->std_aspect_ratio; if (vivid_is_hdmi_cap(dev)) return dev->dv_timings_aspect_ratio; return TPG_VIDEO_ASPECT_IMAGE; } static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev) { if (vivid_is_sdtv_cap(dev)) return (dev->std_cap & V4L2_STD_525_60) ? TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; if (vivid_is_hdmi_cap(dev) && dev->src_rect.width == 720 && dev->src_rect.height <= 576) return dev->src_rect.height == 480 ? TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; return TPG_PIXEL_ASPECT_SQUARE; } /* * Called whenever the format has to be reset which can occur when * changing inputs, standard, timings, etc. */ void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls) { struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt; unsigned size; u64 pixelclock; switch (dev->input_type[dev->input]) { case WEBCAM: default: dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width; dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height; dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx]; dev->field_cap = V4L2_FIELD_NONE; tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO); break; case TV: case SVID: dev->field_cap = dev->tv_field_cap; dev->src_rect.width = 720; if (dev->std_cap & V4L2_STD_525_60) { dev->src_rect.height = 480; dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 }; dev->service_set_cap = V4L2_SLICED_CAPTION_525; } else { dev->src_rect.height = 576; dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 }; dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; } tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO); break; case HDMI: dev->src_rect.width = bt->width; dev->src_rect.height = bt->height; size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt); if (dev->reduced_fps && can_reduce_fps(bt)) { pixelclock = div_u64(bt->pixelclock * 1000, 1001); bt->flags |= V4L2_DV_FL_REDUCED_FPS; } else { pixelclock = bt->pixelclock; bt->flags &= ~V4L2_DV_FL_REDUCED_FPS; } dev->timeperframe_vid_cap = (struct v4l2_fract) { size / 100, (u32)pixelclock / 100 }; if (bt->interlaced) dev->field_cap = V4L2_FIELD_ALTERNATE; else dev->field_cap = V4L2_FIELD_NONE; /* * We can be called from within s_ctrl, in that case we can't * set/get controls. Luckily we don't need to in that case. */ if (keep_controls || !dev->colorspace) break; if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) { if (bt->width == 720 && bt->height <= 576) v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); else v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709); v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1); } else { v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0); } tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap)); break; } vfree(dev->bitmap_cap); dev->bitmap_cap = NULL; vivid_update_quality(dev); tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap); dev->crop_cap = dev->src_rect; dev->crop_bounds_cap = dev->src_rect; dev->compose_cap = dev->crop_cap; if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap)) dev->compose_cap.height /= 2; dev->fmt_cap_rect = dev->compose_cap; tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev)); tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev)); tpg_update_mv_step(&dev->tpg); } /* Map the field to something that is valid for the current input */ static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field) { if (vivid_is_sdtv_cap(dev)) { switch (field) { case V4L2_FIELD_INTERLACED_TB: case V4L2_FIELD_INTERLACED_BT: case V4L2_FIELD_SEQ_TB: case V4L2_FIELD_SEQ_BT: case V4L2_FIELD_TOP: case V4L2_FIELD_BOTTOM: case V4L2_FIELD_ALTERNATE: return field; case V4L2_FIELD_INTERLACED: default: return V4L2_FIELD_INTERLACED; } } if (vivid_is_hdmi_cap(dev)) return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE; return V4L2_FIELD_NONE; } static unsigned vivid_colorspace_cap(struct vivid_dev *dev) { if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) return tpg_g_colorspace(&dev->tpg); return dev->colorspace_out; } static unsigned vivid_xfer_func_cap(struct vivid_dev *dev) { if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) return tpg_g_xfer_func(&dev->tpg); return dev->xfer_func_out; } static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev) { if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) return tpg_g_ycbcr_enc(&dev->tpg); return dev->ycbcr_enc_out; } static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev) { if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) return tpg_g_hsv_enc(&dev->tpg); return dev->hsv_enc_out; } static unsigned vivid_quantization_cap(struct vivid_dev *dev) { if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev)) return tpg_g_quantization(&dev->tpg); return dev->quantization_out; } int vivid_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; unsigned p; mp->width = dev->fmt_cap_rect.width; mp->height = dev->fmt_cap_rect.height; mp->field = dev->field_cap; mp->pixelformat = dev->fmt_cap->fourcc; mp->colorspace = vivid_colorspace_cap(dev); mp->xfer_func = vivid_xfer_func_cap(dev); if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV) mp->hsv_enc = vivid_hsv_enc_cap(dev); else mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); mp->quantization = vivid_quantization_cap(dev); mp->num_planes = dev->fmt_cap->buffers; for (p = 0; p < mp->num_planes; p++) { mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p); mp->plane_fmt[p].sizeimage = tpg_g_line_width(&dev->tpg, p) * mp->height + dev->fmt_cap->data_offset[p]; } return 0; } int vivid_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; struct v4l2_plane_pix_format *pfmt = mp->plane_fmt; struct vivid_dev *dev = video_drvdata(file); const struct vivid_fmt *fmt; unsigned bytesperline, max_bpl; unsigned factor = 1; unsigned w, h; unsigned p; fmt = vivid_get_format(dev, mp->pixelformat); if (!fmt) { dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n", mp->pixelformat); mp->pixelformat = V4L2_PIX_FMT_YUYV; fmt = vivid_get_format(dev, mp->pixelformat); } mp->field = vivid_field_cap(dev, mp->field); if (vivid_is_webcam(dev)) { const struct v4l2_frmsize_discrete *sz = v4l2_find_nearest_size(webcam_sizes, VIVID_WEBCAM_SIZES, width, height, mp->width, mp->height); w = sz->width; h = sz->height; } else if (vivid_is_sdtv_cap(dev)) { w = 720; h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576; } else { w = dev->src_rect.width; h = dev->src_rect.height; } if (V4L2_FIELD_HAS_T_OR_B(mp->field)) factor = 2; if (vivid_is_webcam(dev) || (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) { mp->width = w; mp->height = h / factor; } else { struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor }; v4l2_rect_set_min_size(&r, &vivid_min_rect); v4l2_rect_set_max_size(&r, &vivid_max_rect); if (dev->has_scaler_cap && !dev->has_compose_cap) { struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h }; v4l2_rect_set_max_size(&r, &max_r); } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) { v4l2_rect_set_max_size(&r, &dev->src_rect); } else if (!dev->has_scaler_cap && !dev->has_crop_cap) { v4l2_rect_set_min_size(&r, &dev->src_rect); } mp->width = r.width; mp->height = r.height / factor; } /* This driver supports custom bytesperline values */ mp->num_planes = fmt->buffers; for (p = 0; p < fmt->buffers; p++) { /* Calculate the minimum supported bytesperline value */ bytesperline = (mp->width * fmt->bit_depth[p]) >> 3; /* Calculate the maximum supported bytesperline value */ max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3; if (pfmt[p].bytesperline > max_bpl) pfmt[p].bytesperline = max_bpl; if (pfmt[p].bytesperline < bytesperline) pfmt[p].bytesperline = bytesperline; pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) / fmt->vdownsampling[p] + fmt->data_offset[p]; memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved)); } for (p = fmt->buffers; p < fmt->planes; p++) pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height * (fmt->bit_depth[p] / fmt->vdownsampling[p])) / (fmt->bit_depth[0] / fmt->vdownsampling[0]); mp->colorspace = vivid_colorspace_cap(dev); if (fmt->color_enc == TGP_COLOR_ENC_HSV) mp->hsv_enc = vivid_hsv_enc_cap(dev); else mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev); mp->xfer_func = vivid_xfer_func_cap(dev); mp->quantization = vivid_quantization_cap(dev); memset(mp->reserved, 0, sizeof(mp->reserved)); return 0; } int vivid_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; struct vivid_dev *dev = video_drvdata(file); struct v4l2_rect *crop = &dev->crop_cap; struct v4l2_rect *compose = &dev->compose_cap; struct vb2_queue *q = &dev->vb_vid_cap_q; int ret = vivid_try_fmt_vid_cap(file, priv, f); unsigned factor = 1; unsigned p; unsigned i; if (ret < 0) return ret; if (vb2_is_busy(q)) { dprintk(dev, 1, "%s device busy\n", __func__); return -EBUSY; } if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) { dprintk(dev, 1, "overlay is active, can't change pixelformat\n"); return -EBUSY; } dev->fmt_cap = vivid_get_format(dev, mp->pixelformat); if (V4L2_FIELD_HAS_T_OR_B(mp->field)) factor = 2; /* Note: the webcam input doesn't support scaling, cropping or composing */ if (!vivid_is_webcam(dev) && (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) { struct v4l2_rect r = { 0, 0, mp->width, mp->height }; if (dev->has_scaler_cap) { if (dev->has_compose_cap) v4l2_rect_map_inside(compose, &r); else *compose = r; if (dev->has_crop_cap && !dev->has_compose_cap) { struct v4l2_rect min_r = { 0, 0, r.width / MAX_ZOOM, factor * r.height / MAX_ZOOM }; struct v4l2_rect max_r = { 0, 0, r.width * MAX_ZOOM, factor * r.height * MAX_ZOOM }; v4l2_rect_set_min_size(crop, &min_r); v4l2_rect_set_max_size(crop, &max_r); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); } else if (dev->has_crop_cap) { struct v4l2_rect min_r = { 0, 0, compose->width / MAX_ZOOM, factor * compose->height / MAX_ZOOM }; struct v4l2_rect max_r = { 0, 0, compose->width * MAX_ZOOM, factor * compose->height * MAX_ZOOM }; v4l2_rect_set_min_size(crop, &min_r); v4l2_rect_set_max_size(crop, &max_r); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); } } else if (dev->has_crop_cap && !dev->has_compose_cap) { r.height *= factor; v4l2_rect_set_size_to(crop, &r); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); r = *crop; r.height /= factor; v4l2_rect_set_size_to(compose, &r); } else if (!dev->has_crop_cap) { v4l2_rect_map_inside(compose, &r); } else { r.height *= factor; v4l2_rect_set_max_size(crop, &r); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); compose->top *= factor; compose->height *= factor; v4l2_rect_set_size_to(compose, crop); v4l2_rect_map_inside(compose, &r); compose->top /= factor; compose->height /= factor; } } else if (vivid_is_webcam(dev)) { /* Guaranteed to be a match */ for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++) if (webcam_sizes[i].width == mp->width && webcam_sizes[i].height == mp->height) break; dev->webcam_size_idx = i; if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i)) dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1; vivid_update_format_cap(dev, false); } else { struct v4l2_rect r = { 0, 0, mp->width, mp->height }; v4l2_rect_set_size_to(compose, &r); r.height *= factor; v4l2_rect_set_size_to(crop, &r); } dev->fmt_cap_rect.width = mp->width; dev->fmt_cap_rect.height = mp->height; tpg_s_buf_height(&dev->tpg, mp->height); tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc); for (p = 0; p < tpg_g_buffers(&dev->tpg); p++) tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline); dev->field_cap = mp->field; if (dev->field_cap == V4L2_FIELD_ALTERNATE) tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true); else tpg_s_field(&dev->tpg, dev->field_cap, false); tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap); if (vivid_is_sdtv_cap(dev)) dev->tv_field_cap = mp->field; tpg_update_mv_step(&dev->tpg); return 0; } int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (!dev->multiplanar) return -ENOTTY; return vivid_g_fmt_vid_cap(file, priv, f); } int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (!dev->multiplanar) return -ENOTTY; return vivid_try_fmt_vid_cap(file, priv, f); } int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (!dev->multiplanar) return -ENOTTY; return vivid_s_fmt_vid_cap(file, priv, f); } int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (dev->multiplanar) return -ENOTTY; return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap); } int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (dev->multiplanar) return -ENOTTY; return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap); } int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); if (dev->multiplanar) return -ENOTTY; return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap); } int vivid_vid_cap_g_selection(struct file *file, void *priv, struct v4l2_selection *sel) { struct vivid_dev *dev = video_drvdata(file); if (!dev->has_crop_cap && !dev->has_compose_cap) return -ENOTTY; if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (vivid_is_webcam(dev)) return -ENODATA; sel->r.left = sel->r.top = 0; switch (sel->target) { case V4L2_SEL_TGT_CROP: if (!dev->has_crop_cap) return -EINVAL; sel->r = dev->crop_cap; break; case V4L2_SEL_TGT_CROP_DEFAULT: case V4L2_SEL_TGT_CROP_BOUNDS: if (!dev->has_crop_cap) return -EINVAL; sel->r = dev->src_rect; break; case V4L2_SEL_TGT_COMPOSE_BOUNDS: if (!dev->has_compose_cap) return -EINVAL; sel->r = vivid_max_rect; break; case V4L2_SEL_TGT_COMPOSE: if (!dev->has_compose_cap) return -EINVAL; sel->r = dev->compose_cap; break; case V4L2_SEL_TGT_COMPOSE_DEFAULT: if (!dev->has_compose_cap) return -EINVAL; sel->r = dev->fmt_cap_rect; break; default: return -EINVAL; } return 0; } int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s) { struct vivid_dev *dev = video_drvdata(file); struct v4l2_rect *crop = &dev->crop_cap; struct v4l2_rect *compose = &dev->compose_cap; unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1; int ret; if (!dev->has_crop_cap && !dev->has_compose_cap) return -ENOTTY; if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; if (vivid_is_webcam(dev)) return -ENODATA; switch (s->target) { case V4L2_SEL_TGT_CROP: if (!dev->has_crop_cap) return -EINVAL; ret = vivid_vid_adjust_sel(s->flags, &s->r); if (ret) return ret; v4l2_rect_set_min_size(&s->r, &vivid_min_rect); v4l2_rect_set_max_size(&s->r, &dev->src_rect); v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap); s->r.top /= factor; s->r.height /= factor; if (dev->has_scaler_cap) { struct v4l2_rect fmt = dev->fmt_cap_rect; struct v4l2_rect max_rect = { 0, 0, s->r.width * MAX_ZOOM, s->r.height * MAX_ZOOM }; struct v4l2_rect min_rect = { 0, 0, s->r.width / MAX_ZOOM, s->r.height / MAX_ZOOM }; v4l2_rect_set_min_size(&fmt, &min_rect); if (!dev->has_compose_cap) v4l2_rect_set_max_size(&fmt, &max_rect); if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) && vb2_is_busy(&dev->vb_vid_cap_q)) return -EBUSY; if (dev->has_compose_cap) { v4l2_rect_set_min_size(compose, &min_rect); v4l2_rect_set_max_size(compose, &max_rect); } dev->fmt_cap_rect = fmt; tpg_s_buf_height(&dev->tpg, fmt.height); } else if (dev->has_compose_cap) { struct v4l2_rect fmt = dev->fmt_cap_rect; v4l2_rect_set_min_size(&fmt, &s->r); if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) && vb2_is_busy(&dev->vb_vid_cap_q)) return -EBUSY; dev->fmt_cap_rect = fmt; tpg_s_buf_height(&dev->tpg, fmt.height); v4l2_rect_set_size_to(compose, &s->r); v4l2_rect_map_inside(compose, &dev->fmt_cap_rect); } else { if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) && vb2_is_busy(&dev->vb_vid_cap_q)) return -EBUSY; v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r); v4l2_rect_set_size_to(compose, &s->r); v4l2_rect_map_inside(compose, &dev->fmt_cap_rect); tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height); } s->r.top *= factor; s->r.height *= factor; *crop = s->r; break; case V4L2_SEL_TGT_COMPOSE: if (!dev->has_compose_cap) return -EINVAL; ret = vivid_vid_adjust_sel(s->flags, &s->r); if (ret) return ret; v4l2_rect_set_min_size(&s->r, &vivid_min_rect); v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect); if (dev->has_scaler_cap) { struct v4l2_rect max_rect = { 0, 0, dev->src_rect.width * MAX_ZOOM, (dev->src_rect.height / factor) * MAX_ZOOM }; v4l2_rect_set_max_size(&s->r, &max_rect); if (dev->has_crop_cap) { struct v4l2_rect min_rect = { 0, 0, s->r.width / MAX_ZOOM, (s->r.height * factor) / MAX_ZOOM }; struct v4l2_rect max_rect = { 0, 0, s->r.width * MAX_ZOOM, (s->r.height * factor) * MAX_ZOOM }; v4l2_rect_set_min_size(crop, &min_rect); v4l2_rect_set_max_size(crop, &max_rect); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); } } else if (dev->has_crop_cap) { s->r.top *= factor; s->r.height *= factor; v4l2_rect_set_max_size(&s->r, &dev->src_rect); v4l2_rect_set_size_to(crop, &s->r); v4l2_rect_map_inside(crop, &dev->crop_bounds_cap); s->r.top /= factor; s->r.height /= factor; } else { v4l2_rect_set_size_to(&s->r, &dev->src_rect); s->r.height /= factor; } v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect); if (dev->bitmap_cap && (compose->width != s->r.width || compose->height != s->r.height)) { vfree(dev->bitmap_cap); dev->bitmap_cap = NULL; } *compose = s->r; break; default: return -EINVAL; } tpg_s_crop_compose(&dev->tpg, crop, compose); return 0; } int vivid_vid_cap_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap) { struct vivid_dev *dev = video_drvdata(file); if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; switch (vivid_get_pixel_aspect(dev)) { case TPG_PIXEL_ASPECT_NTSC: cap->pixelaspect.numerator = 11; cap->pixelaspect.denominator = 10; break; case TPG_PIXEL_ASPECT_PAL: cap->pixelaspect.numerator = 54; cap->pixelaspect.denominator = 59; break; case TPG_PIXEL_ASPECT_SQUARE: cap->pixelaspect.numerator = 1; cap->pixelaspect.denominator = 1; break; } return 0; } int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_fmtdesc *f) { struct vivid_dev *dev = video_drvdata(file); const struct vivid_fmt *fmt; if (dev->multiplanar) return -ENOTTY; if (f->index >= ARRAY_SIZE(formats_ovl)) return -EINVAL; fmt = &formats_ovl[f->index]; f->pixelformat = fmt->fourcc; return 0; } int vidioc_g_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); const struct v4l2_rect *compose = &dev->compose_cap; struct v4l2_window *win = &f->fmt.win; unsigned clipcount = win->clipcount; if (dev->multiplanar) return -ENOTTY; win->w.top = dev->overlay_cap_top; win->w.left = dev->overlay_cap_left; win->w.width = compose->width; win->w.height = compose->height; win->field = dev->overlay_cap_field; win->clipcount = dev->clipcount_cap; if (clipcount > dev->clipcount_cap) clipcount = dev->clipcount_cap; if (dev->bitmap_cap == NULL) win->bitmap = NULL; else if (win->bitmap) { if (copy_to_user(win->bitmap, dev->bitmap_cap, ((compose->width + 7) / 8) * compose->height)) return -EFAULT; } if (clipcount && win->clips) { if (copy_to_user(win->clips, dev->clips_cap, clipcount * sizeof(dev->clips_cap[0]))) return -EFAULT; } return 0; } int vidioc_try_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); const struct v4l2_rect *compose = &dev->compose_cap; struct v4l2_window *win = &f->fmt.win; int i, j; if (dev->multiplanar) return -ENOTTY; win->w.left = clamp_t(int, win->w.left, -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width); win->w.top = clamp_t(int, win->w.top, -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height); win->w.width = compose->width; win->w.height = compose->height; if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP) win->field = V4L2_FIELD_ANY; win->chromakey = 0; win->global_alpha = 0; if (win->clipcount && !win->clips) win->clipcount = 0; if (win->clipcount > MAX_CLIPS) win->clipcount = MAX_CLIPS; if (win->clipcount) { if (copy_from_user(dev->try_clips_cap, win->clips, win->clipcount * sizeof(dev->clips_cap[0]))) return -EFAULT; for (i = 0; i < win->clipcount; i++) { struct v4l2_rect *r = &dev->try_clips_cap[i].c; r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1); r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top); r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1); r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left); } /* * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small * number and it's typically a one-time deal. */ for (i = 0; i < win->clipcount - 1; i++) { struct v4l2_rect *r1 = &dev->try_clips_cap[i].c; for (j = i + 1; j < win->clipcount; j++) { struct v4l2_rect *r2 = &dev->try_clips_cap[j].c; if (v4l2_rect_overlap(r1, r2)) return -EINVAL; } } if (copy_to_user(win->clips, dev->try_clips_cap, win->clipcount * sizeof(dev->clips_cap[0]))) return -EFAULT; } return 0; } int vidioc_s_fmt_vid_overlay(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); const struct v4l2_rect *compose = &dev->compose_cap; struct v4l2_window *win = &f->fmt.win; int ret = vidioc_try_fmt_vid_overlay(file, priv, f); unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height; unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]); void *new_bitmap = NULL; if (ret) return ret; if (win->bitmap) { new_bitmap = vzalloc(bitmap_size); if (new_bitmap == NULL) return -ENOMEM; if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) { vfree(new_bitmap); return -EFAULT; } } dev->overlay_cap_top = win->w.top; dev->overlay_cap_left = win->w.left; dev->overlay_cap_field = win->field; vfree(dev->bitmap_cap); dev->bitmap_cap = new_bitmap; dev->clipcount_cap = win->clipcount; if (dev->clipcount_cap) memcpy(dev->clips_cap, dev->try_clips_cap, clips_size); return 0; } int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i) { struct vivid_dev *dev = video_drvdata(file); if (dev->multiplanar) return -ENOTTY; if (i && dev->fb_vbase_cap == NULL) return -EINVAL; if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) { dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n"); return -EINVAL; } if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh) return -EBUSY; dev->overlay_cap_owner = i ? fh : NULL; return 0; } int vivid_vid_cap_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *a) { struct vivid_dev *dev = video_drvdata(file); if (dev->multiplanar) return -ENOTTY; *a = dev->fb_cap; a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING | V4L2_FBUF_CAP_LIST_CLIPPING; a->flags = V4L2_FBUF_FLAG_PRIMARY; a->fmt.field = V4L2_FIELD_NONE; a->fmt.colorspace = V4L2_COLORSPACE_SRGB; a->fmt.priv = 0; return 0; } int vivid_vid_cap_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *a) { struct vivid_dev *dev = video_drvdata(file); const struct vivid_fmt *fmt; if (dev->multiplanar) return -ENOTTY; if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) return -EPERM; if (dev->overlay_cap_owner) return -EBUSY; if (a->base == NULL) { dev->fb_cap.base = NULL; dev->fb_vbase_cap = NULL; return 0; } if (a->fmt.width < 48 || a->fmt.height < 32) return -EINVAL; fmt = vivid_get_format(dev, a->fmt.pixelformat); if (!fmt || !fmt->can_do_overlay) return -EINVAL; if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8) return -EINVAL; if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage) return -EINVAL; dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base); dev->fb_cap = *a; dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left, -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width); dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top, -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height); return 0; } static const struct v4l2_audio vivid_audio_inputs[] = { { 0, "TV", V4L2_AUDCAP_STEREO }, { 1, "Line-In", V4L2_AUDCAP_STEREO }, }; int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *inp) { struct vivid_dev *dev = video_drvdata(file); if (inp->index >= dev->num_inputs) return -EINVAL; inp->type = V4L2_INPUT_TYPE_CAMERA; switch (dev->input_type[inp->index]) { case WEBCAM: snprintf(inp->name, sizeof(inp->name), "Webcam %u", dev->input_name_counter[inp->index]); inp->capabilities = 0; break; case TV: snprintf(inp->name, sizeof(inp->name), "TV %u", dev->input_name_counter[inp->index]); inp->type = V4L2_INPUT_TYPE_TUNER; inp->std = V4L2_STD_ALL; if (dev->has_audio_inputs) inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1; inp->capabilities = V4L2_IN_CAP_STD; break; case SVID: snprintf(inp->name, sizeof(inp->name), "S-Video %u", dev->input_name_counter[inp->index]); inp->std = V4L2_STD_ALL; if (dev->has_audio_inputs) inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1; inp->capabilities = V4L2_IN_CAP_STD; break; case HDMI: snprintf(inp->name, sizeof(inp->name), "HDMI %u", dev->input_name_counter[inp->index]); inp->capabilities = V4L2_IN_CAP_DV_TIMINGS; if (dev->edid_blocks == 0 || dev->dv_timings_signal_mode == NO_SIGNAL) inp->status |= V4L2_IN_ST_NO_SIGNAL; else if (dev->dv_timings_signal_mode == NO_LOCK || dev->dv_timings_signal_mode == OUT_OF_RANGE) inp->status |= V4L2_IN_ST_NO_H_LOCK; break; } if (dev->sensor_hflip) inp->status |= V4L2_IN_ST_HFLIP; if (dev->sensor_vflip) inp->status |= V4L2_IN_ST_VFLIP; if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) { if (dev->std_signal_mode == NO_SIGNAL) { inp->status |= V4L2_IN_ST_NO_SIGNAL; } else if (dev->std_signal_mode == NO_LOCK) { inp->status |= V4L2_IN_ST_NO_H_LOCK; } else if (vivid_is_tv_cap(dev)) { switch (tpg_g_quality(&dev->tpg)) { case TPG_QUAL_GRAY: inp->status |= V4L2_IN_ST_COLOR_KILL; break; case TPG_QUAL_NOISE: inp->status |= V4L2_IN_ST_NO_H_LOCK; break; default: break; } } } return 0; } int vidioc_g_input(struct file *file, void *priv, unsigned *i) { struct vivid_dev *dev = video_drvdata(file); *i = dev->input; return 0; } int vidioc_s_input(struct file *file, void *priv, unsigned i) { struct vivid_dev *dev = video_drvdata(file); struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt; unsigned brightness; if (i >= dev->num_inputs) return -EINVAL; if (i == dev->input) return 0; if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q)) return -EBUSY; dev->input = i; dev->vid_cap_dev.tvnorms = 0; if (dev->input_type[i] == TV || dev->input_type[i] == SVID) { dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1; dev->vid_cap_dev.tvnorms = V4L2_STD_ALL; } dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms; vivid_update_format_cap(dev, false); if (dev->colorspace) { switch (dev->input_type[i]) { case WEBCAM: v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); break; case TV: case SVID: v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); break; case HDMI: if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) { if (dev->src_rect.width == 720 && dev->src_rect.height <= 576) v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M); else v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709); } else { v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB); } break; } } /* * Modify the brightness range depending on the input. * This makes it easy to use vivid to test if applications can * handle control range modifications and is also how this is * typically used in practice as different inputs may be hooked * up to different receivers with different control ranges. */ brightness = 128 * i + dev->input_brightness[i]; v4l2_ctrl_modify_range(dev->brightness, 128 * i, 255 + 128 * i, 1, 128 + 128 * i); v4l2_ctrl_s_ctrl(dev->brightness, brightness); return 0; } int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin) { if (vin->index >= ARRAY_SIZE(vivid_audio_inputs)) return -EINVAL; *vin = vivid_audio_inputs[vin->index]; return 0; } int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_sdtv_cap(dev)) return -EINVAL; *vin = vivid_audio_inputs[dev->tv_audio_input]; return 0; } int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_sdtv_cap(dev)) return -EINVAL; if (vin->index >= ARRAY_SIZE(vivid_audio_inputs)) return -EINVAL; dev->tv_audio_input = vin->index; return 0; } int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) { struct vivid_dev *dev = video_drvdata(file); if (vf->tuner != 0) return -EINVAL; vf->frequency = dev->tv_freq; return 0; } int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) { struct vivid_dev *dev = video_drvdata(file); if (vf->tuner != 0) return -EINVAL; dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ); if (vivid_is_tv_cap(dev)) vivid_update_quality(dev); return 0; } int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) { struct vivid_dev *dev = video_drvdata(file); if (vt->index != 0) return -EINVAL; if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2) return -EINVAL; dev->tv_audmode = vt->audmode; return 0; } int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) { struct vivid_dev *dev = video_drvdata(file); enum tpg_quality qual; if (vt->index != 0) return -EINVAL; vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; vt->audmode = dev->tv_audmode; vt->rangelow = MIN_TV_FREQ; vt->rangehigh = MAX_TV_FREQ; qual = vivid_get_quality(dev, &vt->afc); if (qual == TPG_QUAL_COLOR) vt->signal = 0xffff; else if (qual == TPG_QUAL_GRAY) vt->signal = 0x8000; else vt->signal = 0; if (qual == TPG_QUAL_NOISE) { vt->rxsubchans = 0; } else if (qual == TPG_QUAL_GRAY) { vt->rxsubchans = V4L2_TUNER_SUB_MONO; } else { unsigned channel_nr = dev->tv_freq / (6 * 16); unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3; switch (channel_nr % options) { case 0: vt->rxsubchans = V4L2_TUNER_SUB_MONO; break; case 1: vt->rxsubchans = V4L2_TUNER_SUB_STEREO; break; case 2: if (dev->std_cap & V4L2_STD_NTSC_M) vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP; else vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; break; case 3: vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP; break; } } strlcpy(vt->name, "TV Tuner", sizeof(vt->name)); return 0; } /* Must remain in sync with the vivid_ctrl_standard_strings array */ const v4l2_std_id vivid_standard[] = { V4L2_STD_NTSC_M, V4L2_STD_NTSC_M_JP, V4L2_STD_NTSC_M_KR, V4L2_STD_NTSC_443, V4L2_STD_PAL_BG | V4L2_STD_PAL_H, V4L2_STD_PAL_I, V4L2_STD_PAL_DK, V4L2_STD_PAL_M, V4L2_STD_PAL_N, V4L2_STD_PAL_Nc, V4L2_STD_PAL_60, V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, V4L2_STD_SECAM_DK, V4L2_STD_SECAM_L, V4L2_STD_SECAM_LC, V4L2_STD_UNKNOWN }; /* Must remain in sync with the vivid_standard array */ const char * const vivid_ctrl_standard_strings[] = { "NTSC-M", "NTSC-M-JP", "NTSC-M-KR", "NTSC-443", "PAL-BGH", "PAL-I", "PAL-DK", "PAL-M", "PAL-N", "PAL-Nc", "PAL-60", "SECAM-BGH", "SECAM-DK", "SECAM-L", "SECAM-Lc", NULL, }; int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_sdtv_cap(dev)) return -ENODATA; if (dev->std_signal_mode == NO_SIGNAL || dev->std_signal_mode == NO_LOCK) { *id = V4L2_STD_UNKNOWN; return 0; } if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) { *id = V4L2_STD_UNKNOWN; } else if (dev->std_signal_mode == CURRENT_STD) { *id = dev->std_cap; } else if (dev->std_signal_mode == SELECTED_STD) { *id = dev->query_std; } else { *id = vivid_standard[dev->query_std_last]; dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard); } return 0; } int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_sdtv_cap(dev)) return -ENODATA; if (dev->std_cap == id) return 0; if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q)) return -EBUSY; dev->std_cap = id; vivid_update_format_cap(dev, false); return 0; } static void find_aspect_ratio(u32 width, u32 height, u32 *num, u32 *denom) { if (!(height % 3) && ((height * 4 / 3) == width)) { *num = 4; *denom = 3; } else if (!(height % 9) && ((height * 16 / 9) == width)) { *num = 16; *denom = 9; } else if (!(height % 10) && ((height * 16 / 10) == width)) { *num = 16; *denom = 10; } else if (!(height % 4) && ((height * 5 / 4) == width)) { *num = 5; *denom = 4; } else if (!(height % 9) && ((height * 15 / 9) == width)) { *num = 15; *denom = 9; } else { /* default to 16:9 */ *num = 16; *denom = 9; } } static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings) { struct v4l2_bt_timings *bt = &timings->bt; u32 total_h_pixel; u32 total_v_lines; u32 h_freq; if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, NULL, NULL)) return false; total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt); total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt); h_freq = (u32)bt->pixelclock / total_h_pixel; if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) { if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width, bt->polarities, bt->interlaced, timings)) return true; } if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) { struct v4l2_fract aspect_ratio; find_aspect_ratio(bt->width, bt->height, &aspect_ratio.numerator, &aspect_ratio.denominator); if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync, bt->polarities, bt->interlaced, aspect_ratio, timings)) return true; } return false; } int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_hdmi_cap(dev)) return -ENODATA; if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap, 0, NULL, NULL) && !valid_cvt_gtf_timings(timings)) return -EINVAL; if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0, false)) return 0; if (vb2_is_busy(&dev->vb_vid_cap_q)) return -EBUSY; dev->dv_timings_cap = *timings; vivid_update_format_cap(dev, false); return 0; } int vidioc_query_dv_timings(struct file *file, void *_fh, struct v4l2_dv_timings *timings) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_hdmi_cap(dev)) return -ENODATA; if (dev->dv_timings_signal_mode == NO_SIGNAL || dev->edid_blocks == 0) return -ENOLINK; if (dev->dv_timings_signal_mode == NO_LOCK) return -ENOLCK; if (dev->dv_timings_signal_mode == OUT_OF_RANGE) { timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2; return -ERANGE; } if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) { *timings = dev->dv_timings_cap; } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) { *timings = v4l2_dv_timings_presets[dev->query_dv_timings]; } else { *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last]; dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) % dev->query_dv_timings_size; } return 0; } int vidioc_s_edid(struct file *file, void *_fh, struct v4l2_edid *edid) { struct vivid_dev *dev = video_drvdata(file); u16 phys_addr; unsigned int i; int ret; memset(edid->reserved, 0, sizeof(edid->reserved)); if (edid->pad >= dev->num_inputs) return -EINVAL; if (dev->input_type[edid->pad] != HDMI || edid->start_block) return -EINVAL; if (edid->blocks == 0) { dev->edid_blocks = 0; phys_addr = CEC_PHYS_ADDR_INVALID; goto set_phys_addr; } if (edid->blocks > dev->edid_max_blocks) { edid->blocks = dev->edid_max_blocks; return -E2BIG; } phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL); ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL); if (ret) return ret; if (vb2_is_busy(&dev->vb_vid_cap_q)) return -EBUSY; dev->edid_blocks = edid->blocks; memcpy(dev->edid, edid->edid, edid->blocks * 128); set_phys_addr: /* TODO: a proper hotplug detect cycle should be emulated here */ cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false); for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++) cec_s_phys_addr(dev->cec_tx_adap[i], v4l2_phys_addr_for_input(phys_addr, i + 1), false); return 0; } int vidioc_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_webcam(dev) && !dev->has_scaler_cap) return -EINVAL; if (vivid_get_format(dev, fsize->pixel_format) == NULL) return -EINVAL; if (vivid_is_webcam(dev)) { if (fsize->index >= ARRAY_SIZE(webcam_sizes)) return -EINVAL; fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; fsize->discrete = webcam_sizes[fsize->index]; return 0; } if (fsize->index) return -EINVAL; fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; fsize->stepwise.min_width = MIN_WIDTH; fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM; fsize->stepwise.step_width = 2; fsize->stepwise.min_height = MIN_HEIGHT; fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM; fsize->stepwise.step_height = 2; return 0; } /* timeperframe is arbitrary and continuous */ int vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *fival) { struct vivid_dev *dev = video_drvdata(file); const struct vivid_fmt *fmt; int i; fmt = vivid_get_format(dev, fival->pixel_format); if (!fmt) return -EINVAL; if (!vivid_is_webcam(dev)) { if (fival->index) return -EINVAL; if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM) return -EINVAL; if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM) return -EINVAL; fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; fival->discrete = dev->timeperframe_vid_cap; return 0; } for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++) if (fival->width == webcam_sizes[i].width && fival->height == webcam_sizes[i].height) break; if (i == ARRAY_SIZE(webcam_sizes)) return -EINVAL; if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i)) return -EINVAL; fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; fival->discrete = webcam_intervals[fival->index]; return 0; } int vivid_vid_cap_g_parm(struct file *file, void *priv, struct v4l2_streamparm *parm) { struct vivid_dev *dev = video_drvdata(file); if (parm->type != (dev->multiplanar ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : V4L2_BUF_TYPE_VIDEO_CAPTURE)) return -EINVAL; parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; parm->parm.capture.timeperframe = dev->timeperframe_vid_cap; parm->parm.capture.readbuffers = 1; return 0; } #define FRACT_CMP(a, OP, b) \ ((u64)(a).numerator * (b).denominator OP (u64)(b).numerator * (a).denominator) int vivid_vid_cap_s_parm(struct file *file, void *priv, struct v4l2_streamparm *parm) { struct vivid_dev *dev = video_drvdata(file); unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx); struct v4l2_fract tpf; unsigned i; if (parm->type != (dev->multiplanar ? V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : V4L2_BUF_TYPE_VIDEO_CAPTURE)) return -EINVAL; if (!vivid_is_webcam(dev)) return vivid_vid_cap_g_parm(file, priv, parm); tpf = parm->parm.capture.timeperframe; if (tpf.denominator == 0) tpf = webcam_intervals[ival_sz - 1]; for (i = 0; i < ival_sz; i++) if (FRACT_CMP(tpf, >=, webcam_intervals[i])) break; if (i == ival_sz) i = ival_sz - 1; dev->webcam_ival_idx = i; tpf = webcam_intervals[dev->webcam_ival_idx]; tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf; tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf; /* resync the thread's timings */ dev->cap_seq_resync = true; dev->timeperframe_vid_cap = tpf; parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; parm->parm.capture.timeperframe = tpf; parm->parm.capture.readbuffers = 1; return 0; }