diff options
Diffstat (limited to 'drivers/media/platform/vivid/vivid-vid-out.c')
| -rw-r--r-- | drivers/media/platform/vivid/vivid-vid-out.c | 1146 |
1 files changed, 1146 insertions, 0 deletions
diff --git a/drivers/media/platform/vivid/vivid-vid-out.c b/drivers/media/platform/vivid/vivid-vid-out.c new file mode 100644 index 0000000..69c2dbd --- /dev/null +++ b/drivers/media/platform/vivid/vivid-vid-out.c @@ -0,0 +1,1146 @@ +/* + * vivid-vid-out.c - video output support functions. + * + * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/videodev2.h> +#include <linux/v4l2-dv-timings.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/v4l2-dv-timings.h> + +#include "vivid-core.h" +#include "vivid-vid-common.h" +#include "vivid-kthread-out.h" +#include "vivid-vid-out.h" + +static int vid_out_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, + unsigned *nbuffers, unsigned *nplanes, + unsigned sizes[], void *alloc_ctxs[]) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + unsigned planes = dev->fmt_out->planes; + unsigned h = dev->fmt_out_rect.height; + unsigned size = dev->bytesperline_out[0] * h; + + if (dev->field_out == V4L2_FIELD_ALTERNATE) { + /* + * You cannot use write() with FIELD_ALTERNATE since the field + * information (TOP/BOTTOM) cannot be passed to the kernel. + */ + 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 (fmt) { + const struct v4l2_pix_format_mplane *mp; + struct v4l2_format mp_fmt; + + if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) { + fmt_sp2mp(fmt, &mp_fmt); + fmt = &mp_fmt; + } + mp = &fmt->fmt.pix_mp; + /* + * Check if the number of planes in the specified format match + * the number of planes in the current format. You can't mix that. + */ + if (mp->num_planes != planes) + return -EINVAL; + sizes[0] = mp->plane_fmt[0].sizeimage; + if (planes == 2) { + sizes[1] = mp->plane_fmt[1].sizeimage; + if (sizes[0] < dev->bytesperline_out[0] * h || + sizes[1] < dev->bytesperline_out[1] * h) + return -EINVAL; + } else if (sizes[0] < size) { + return -EINVAL; + } + } else { + if (planes == 2) { + sizes[0] = dev->bytesperline_out[0] * h; + sizes[1] = dev->bytesperline_out[1] * h; + } else { + sizes[0] = size; + } + } + + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; + + *nplanes = planes; + + /* + * videobuf2-vmalloc allocator is context-less so no need to set + * alloc_ctxs array. + */ + + if (planes == 2) + dprintk(dev, 1, "%s, count=%d, sizes=%u, %u\n", __func__, + *nbuffers, sizes[0], sizes[1]); + else + dprintk(dev, 1, "%s, count=%d, size=%u\n", __func__, + *nbuffers, sizes[0]); + return 0; +} + +static int vid_out_buf_prepare(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size; + unsigned planes = dev->fmt_out->planes; + unsigned p; + + dprintk(dev, 1, "%s\n", __func__); + + if (WARN_ON(NULL == dev->fmt_out)) + 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; + } + + if (dev->field_out != V4L2_FIELD_ALTERNATE) + vb->v4l2_buf.field = dev->field_out; + else if (vb->v4l2_buf.field != V4L2_FIELD_TOP && + vb->v4l2_buf.field != V4L2_FIELD_BOTTOM) + return -EINVAL; + + for (p = 0; p < planes; p++) { + size = dev->bytesperline_out[p] * dev->fmt_out_rect.height + + vb->v4l2_planes[p].data_offset; + + if (vb2_get_plane_payload(vb, p) < size) { + dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %lu)\n", + __func__, p, vb2_get_plane_payload(vb, p), size); + return -EINVAL; + } + } + + return 0; +} + +static void vid_out_buf_queue(struct vb2_buffer *vb) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); + struct vivid_buffer *buf = container_of(vb, struct vivid_buffer, vb); + + dprintk(dev, 1, "%s\n", __func__); + + spin_lock(&dev->slock); + list_add_tail(&buf->list, &dev->vid_out_active); + spin_unlock(&dev->slock); +} + +static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count) +{ + struct vivid_dev *dev = vb2_get_drv_priv(vq); + int err; + + if (vb2_is_streaming(&dev->vb_vid_cap_q)) + dev->can_loop_video = vivid_vid_can_loop(dev); + + if (dev->kthread_vid_out) + return 0; + + dev->vid_out_seq_count = 0; + dprintk(dev, 1, "%s\n", __func__); + if (dev->start_streaming_error) { + dev->start_streaming_error = false; + err = -EINVAL; + } else { + err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming); + } + if (err) { + struct vivid_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); + } + } + return err; +} + +/* abort streaming and wait for last buffer */ +static void vid_out_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_out(dev, &dev->vid_out_streaming); + dev->can_loop_video = false; +} + +const struct vb2_ops vivid_vid_out_qops = { + .queue_setup = vid_out_queue_setup, + .buf_prepare = vid_out_buf_prepare, + .buf_queue = vid_out_buf_queue, + .start_streaming = vid_out_start_streaming, + .stop_streaming = vid_out_stop_streaming, + .wait_prepare = vivid_unlock, + .wait_finish = vivid_lock, +}; + +/* + * Called whenever the format has to be reset which can occur when + * changing outputs, standard, timings, etc. + */ +void vivid_update_format_out(struct vivid_dev *dev) +{ + struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt; + unsigned size; + + switch (dev->output_type[dev->output]) { + case SVID: + default: + dev->field_out = dev->tv_field_out; + dev->sink_rect.width = 720; + if (dev->std_out & V4L2_STD_525_60) { + dev->sink_rect.height = 480; + dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 }; + dev->service_set_out = V4L2_SLICED_CAPTION_525; + } else { + dev->sink_rect.height = 576; + dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 }; + dev->service_set_out = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B; + } + dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M; + break; + case HDMI: + dev->sink_rect.width = bt->width; + dev->sink_rect.height = bt->height; + size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt); + dev->timeperframe_vid_out = (struct v4l2_fract) { + size / 100, (u32)bt->pixelclock / 100 + }; + if (bt->interlaced) + dev->field_out = V4L2_FIELD_ALTERNATE; + else + dev->field_out = V4L2_FIELD_NONE; + if (!dev->dvi_d_out && (bt->standards & V4L2_DV_BT_STD_CEA861)) { + if (bt->width == 720 && bt->height <= 576) + dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M; + else + dev->colorspace_out = V4L2_COLORSPACE_REC709; + } else { + dev->colorspace_out = V4L2_COLORSPACE_SRGB; + } + break; + } + dev->compose_out = dev->sink_rect; + dev->compose_bounds_out = dev->sink_rect; + dev->crop_out = dev->compose_out; + if (V4L2_FIELD_HAS_T_OR_B(dev->field_out)) + dev->crop_out.height /= 2; + dev->fmt_out_rect = dev->crop_out; + dev->bytesperline_out[0] = (dev->sink_rect.width * dev->fmt_out->depth) / 8; + if (dev->fmt_out->planes == 2) + dev->bytesperline_out[1] = (dev->sink_rect.width * dev->fmt_out->depth) / 8; +} + +/* Map the field to something that is valid for the current output */ +static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field) +{ + if (vivid_is_svid_out(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_ALTERNATE: + return field; + case V4L2_FIELD_INTERLACED: + default: + return V4L2_FIELD_INTERLACED; + } + } + if (vivid_is_hdmi_out(dev)) + return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE : + V4L2_FIELD_NONE; + return V4L2_FIELD_NONE; +} + +static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev) +{ + if (vivid_is_svid_out(dev)) + return (dev->std_out & V4L2_STD_525_60) ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + if (vivid_is_hdmi_out(dev) && + dev->sink_rect.width == 720 && dev->sink_rect.height <= 576) + return dev->sink_rect.height == 480 ? + TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL; + + return TPG_PIXEL_ASPECT_SQUARE; +} + +int vivid_g_fmt_vid_out(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_out_rect.width; + mp->height = dev->fmt_out_rect.height; + mp->field = dev->field_out; + mp->pixelformat = dev->fmt_out->fourcc; + mp->colorspace = dev->colorspace_out; + mp->num_planes = dev->fmt_out->planes; + for (p = 0; p < mp->num_planes; p++) { + mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p]; + mp->plane_fmt[p].sizeimage = + mp->plane_fmt[p].bytesperline * mp->height; + } + return 0; +} + +int vivid_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt; + struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *pfmt = mp->plane_fmt; + 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_out(dev, mp->field); + if (vivid_is_svid_out(dev)) { + w = 720; + h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576; + } else { + w = dev->sink_rect.width; + h = dev->sink_rect.height; + } + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) { + mp->width = w; + mp->height = h / factor; + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor }; + + rect_set_min_size(&r, &vivid_min_rect); + rect_set_max_size(&r, &vivid_max_rect); + if (dev->has_scaler_out && !dev->has_crop_out) { + struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h }; + + rect_set_max_size(&r, &max_r); + } else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) { + rect_set_max_size(&r, &dev->sink_rect); + } else if (!dev->has_scaler_out && !dev->has_compose_out) { + rect_set_min_size(&r, &dev->sink_rect); + } + mp->width = r.width; + mp->height = r.height / factor; + } + + /* This driver supports custom bytesperline values */ + + /* Calculate the minimum supported bytesperline value */ + bytesperline = (mp->width * fmt->depth) >> 3; + /* Calculate the maximum supported bytesperline value */ + max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->depth) >> 3; + mp->num_planes = fmt->planes; + for (p = 0; p < mp->num_planes; p++) { + 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; + memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved)); + } + if (vivid_is_svid_out(dev)) + mp->colorspace = V4L2_COLORSPACE_SMPTE170M; + else if (dev->dvi_d_out || !(bt->standards & V4L2_DV_BT_STD_CEA861)) + mp->colorspace = V4L2_COLORSPACE_SRGB; + else if (bt->width == 720 && bt->height <= 576) + mp->colorspace = V4L2_COLORSPACE_SMPTE170M; + else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M && + mp->colorspace != V4L2_COLORSPACE_REC709 && + mp->colorspace != V4L2_COLORSPACE_SRGB) + mp->colorspace = V4L2_COLORSPACE_REC709; + memset(mp->reserved, 0, sizeof(mp->reserved)); + return 0; +} + +int vivid_s_fmt_vid_out(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_out; + struct v4l2_rect *compose = &dev->compose_out; + struct vb2_queue *q = &dev->vb_vid_out_q; + int ret = vivid_try_fmt_vid_out(file, priv, f); + unsigned factor = 1; + + if (ret < 0) + return ret; + + if (vb2_is_busy(q) && + (vivid_is_svid_out(dev) || + mp->width != dev->fmt_out_rect.width || + mp->height != dev->fmt_out_rect.height || + mp->pixelformat != dev->fmt_out->fourcc || + mp->field != dev->field_out)) { + dprintk(dev, 1, "%s device busy\n", __func__); + return -EBUSY; + } + + /* + * Allow for changing the colorspace on the fly. Useful for testing + * purposes, and it is something that HDMI transmitters are able + * to do. + */ + if (vb2_is_busy(q)) + goto set_colorspace; + + dev->fmt_out = vivid_get_format(dev, mp->pixelformat); + if (V4L2_FIELD_HAS_T_OR_B(mp->field)) + factor = 2; + + if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + if (dev->has_scaler_out) { + if (dev->has_crop_out) + rect_map_inside(crop, &r); + else + *crop = r; + if (dev->has_compose_out && !dev->has_crop_out) { + 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 + }; + + rect_set_min_size(compose, &min_r); + rect_set_max_size(compose, &max_r); + rect_map_inside(compose, &dev->compose_bounds_out); + } else if (dev->has_compose_out) { + struct v4l2_rect min_r = { + 0, 0, + crop->width / MAX_ZOOM, + factor * crop->height / MAX_ZOOM + }; + struct v4l2_rect max_r = { + 0, 0, + crop->width * MAX_ZOOM, + factor * crop->height * MAX_ZOOM + }; + + rect_set_min_size(compose, &min_r); + rect_set_max_size(compose, &max_r); + rect_map_inside(compose, &dev->compose_bounds_out); + } + } else if (dev->has_compose_out && !dev->has_crop_out) { + rect_set_size_to(crop, &r); + r.height *= factor; + rect_set_size_to(compose, &r); + rect_map_inside(compose, &dev->compose_bounds_out); + } else if (!dev->has_compose_out) { + rect_map_inside(crop, &r); + r.height /= factor; + rect_set_size_to(compose, &r); + } else { + r.height *= factor; + rect_set_max_size(compose, &r); + rect_map_inside(compose, &dev->compose_bounds_out); + crop->top *= factor; + crop->height *= factor; + rect_set_size_to(crop, compose); + rect_map_inside(crop, &r); + crop->top /= factor; + crop->height /= factor; + } + } else { + struct v4l2_rect r = { 0, 0, mp->width, mp->height }; + + rect_set_size_to(crop, &r); + r.height /= factor; + rect_set_size_to(compose, &r); + } + + dev->fmt_out_rect.width = mp->width; + dev->fmt_out_rect.height = mp->height; + dev->bytesperline_out[0] = mp->plane_fmt[0].bytesperline; + if (mp->num_planes > 1) + dev->bytesperline_out[1] = mp->plane_fmt[1].bytesperline; + dev->field_out = mp->field; + if (vivid_is_svid_out(dev)) + dev->tv_field_out = mp->field; + +set_colorspace: + dev->colorspace_out = mp->colorspace; + if (dev->loop_video) { + vivid_send_source_change(dev, SVID); + vivid_send_source_change(dev, HDMI); + } + return 0; +} + +int vidioc_g_fmt_vid_out_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_out(file, priv, f); +} + +int vidioc_try_fmt_vid_out_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_out(file, priv, f); +} + +int vidioc_s_fmt_vid_out_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_out(file, priv, f); +} + +int vidioc_g_fmt_vid_out(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_out); +} + +int vidioc_try_fmt_vid_out(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_out); +} + +int vidioc_s_fmt_vid_out(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_out); +} + +int vivid_vid_out_g_selection(struct file *file, void *priv, + struct v4l2_selection *sel) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!dev->has_crop_out && !dev->has_compose_out) + return -ENOTTY; + if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + sel->r.left = sel->r.top = 0; + switch (sel->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_out) + return -EINVAL; + sel->r = dev->crop_out; + break; + case V4L2_SEL_TGT_CROP_DEFAULT: + if (!dev->has_crop_out) + return -EINVAL; + sel->r = dev->fmt_out_rect; + break; + case V4L2_SEL_TGT_CROP_BOUNDS: + if (!dev->has_compose_out) + return -EINVAL; + sel->r = vivid_max_rect; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_out) + return -EINVAL; + sel->r = dev->compose_out; + break; + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + if (!dev->has_compose_out) + return -EINVAL; + sel->r = dev->sink_rect; + break; + default: + return -EINVAL; + } + return 0; +} + +int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s) +{ + struct vivid_dev *dev = video_drvdata(file); + struct v4l2_rect *crop = &dev->crop_out; + struct v4l2_rect *compose = &dev->compose_out; + unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1; + int ret; + + if (!dev->has_crop_out && !dev->has_compose_out) + return -ENOTTY; + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_CROP: + if (!dev->has_crop_out) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + rect_set_min_size(&s->r, &vivid_min_rect); + rect_set_max_size(&s->r, &dev->fmt_out_rect); + if (dev->has_scaler_out) { + struct v4l2_rect max_rect = { + 0, 0, + dev->sink_rect.width * MAX_ZOOM, + (dev->sink_rect.height / factor) * MAX_ZOOM + }; + + rect_set_max_size(&s->r, &max_rect); + if (dev->has_compose_out) { + 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 + }; + + rect_set_min_size(compose, &min_rect); + rect_set_max_size(compose, &max_rect); + rect_map_inside(compose, &dev->compose_bounds_out); + } + } else if (dev->has_compose_out) { + s->r.top *= factor; + s->r.height *= factor; + rect_set_max_size(&s->r, &dev->sink_rect); + rect_set_size_to(compose, &s->r); + rect_map_inside(compose, &dev->compose_bounds_out); + s->r.top /= factor; + s->r.height /= factor; + } else { + rect_set_size_to(&s->r, &dev->sink_rect); + s->r.height /= factor; + } + rect_map_inside(&s->r, &dev->fmt_out_rect); + *crop = s->r; + break; + case V4L2_SEL_TGT_COMPOSE: + if (!dev->has_compose_out) + return -EINVAL; + ret = vivid_vid_adjust_sel(s->flags, &s->r); + if (ret) + return ret; + rect_set_min_size(&s->r, &vivid_min_rect); + rect_set_max_size(&s->r, &dev->sink_rect); + rect_map_inside(&s->r, &dev->compose_bounds_out); + s->r.top /= factor; + s->r.height /= factor; + if (dev->has_scaler_out) { + struct v4l2_rect fmt = dev->fmt_out_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 + }; + + rect_set_min_size(&fmt, &min_rect); + if (!dev->has_crop_out) + rect_set_max_size(&fmt, &max_rect); + if (!rect_same_size(&dev->fmt_out_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + if (dev->has_crop_out) { + rect_set_min_size(crop, &min_rect); + rect_set_max_size(crop, &max_rect); + } + dev->fmt_out_rect = fmt; + } else if (dev->has_crop_out) { + struct v4l2_rect fmt = dev->fmt_out_rect; + + rect_set_min_size(&fmt, &s->r); + if (!rect_same_size(&dev->fmt_out_rect, &fmt) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + dev->fmt_out_rect = fmt; + rect_set_size_to(crop, &s->r); + rect_map_inside(crop, &dev->fmt_out_rect); + } else { + if (!rect_same_size(&s->r, &dev->fmt_out_rect) && + vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + rect_set_size_to(&dev->fmt_out_rect, &s->r); + rect_set_size_to(crop, &s->r); + crop->height /= factor; + rect_map_inside(crop, &dev->fmt_out_rect); + } + s->r.top *= factor; + s->r.height *= factor; + if (dev->bitmap_out && (compose->width != s->r.width || + compose->height != s->r.height)) { + kfree(dev->bitmap_out); + dev->bitmap_out = NULL; + } + *compose = s->r; + break; + default: + return -EINVAL; + } + + return 0; +} + +int vivid_vid_out_cropcap(struct file *file, void *priv, + struct v4l2_cropcap *cap) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + 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_g_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + unsigned clipcount = win->clipcount; + + if (!dev->has_fb) + return -EINVAL; + win->w.top = dev->overlay_out_top; + win->w.left = dev->overlay_out_left; + win->w.width = compose->width; + win->w.height = compose->height; + win->clipcount = dev->clipcount_out; + win->field = V4L2_FIELD_ANY; + win->chromakey = dev->chromakey_out; + win->global_alpha = dev->global_alpha_out; + if (clipcount > dev->clipcount_out) + clipcount = dev->clipcount_out; + if (dev->bitmap_out == NULL) + win->bitmap = NULL; + else if (win->bitmap) { + if (copy_to_user(win->bitmap, dev->bitmap_out, + ((dev->compose_out.width + 7) / 8) * dev->compose_out.height)) + return -EFAULT; + } + if (clipcount && win->clips) { + if (copy_to_user(win->clips, dev->clips_out, + clipcount * sizeof(dev->clips_out[0]))) + return -EFAULT; + } + return 0; +} + +int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + int i, j; + + if (!dev->has_fb) + return -EINVAL; + win->w.left = clamp_t(int, win->w.left, + -dev->display_width, dev->display_width); + win->w.top = clamp_t(int, win->w.top, + -dev->display_height, dev->display_height); + win->w.width = compose->width; + win->w.height = compose->height; + /* + * It makes no sense for an OSD to overlay only top or bottom fields, + * so always set this to ANY. + */ + win->field = V4L2_FIELD_ANY; + 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_out, win->clips, + win->clipcount * sizeof(dev->clips_out[0]))) + return -EFAULT; + for (i = 0; i < win->clipcount; i++) { + struct v4l2_rect *r = &dev->try_clips_out[i].c; + + r->top = clamp_t(s32, r->top, 0, dev->display_height - 1); + r->height = clamp_t(s32, r->height, 1, dev->display_height - r->top); + r->left = clamp_t(u32, r->left, 0, dev->display_width - 1); + r->width = clamp_t(u32, r->width, 1, dev->display_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_out[i].c; + + for (j = i + 1; j < win->clipcount; j++) { + struct v4l2_rect *r2 = &dev->try_clips_out[j].c; + + if (rect_overlap(r1, r2)) + return -EINVAL; + } + } + if (copy_to_user(win->clips, dev->try_clips_out, + win->clipcount * sizeof(dev->clips_out[0]))) + return -EFAULT; + } + return 0; +} + +int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct vivid_dev *dev = video_drvdata(file); + const struct v4l2_rect *compose = &dev->compose_out; + struct v4l2_window *win = &f->fmt.win; + int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f); + unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height; + unsigned clips_size = win->clipcount * sizeof(dev->clips_out[0]); + void *new_bitmap = NULL; + + if (ret) + return ret; + + if (win->bitmap) { + new_bitmap = memdup_user(win->bitmap, bitmap_size); + + if (IS_ERR(new_bitmap)) + return PTR_ERR(new_bitmap); + } + + dev->overlay_out_top = win->w.top; + dev->overlay_out_left = win->w.left; + kfree(dev->bitmap_out); + dev->bitmap_out = new_bitmap; + dev->clipcount_out = win->clipcount; + if (dev->clipcount_out) + memcpy(dev->clips_out, dev->try_clips_out, clips_size); + dev->chromakey_out = win->chromakey; + dev->global_alpha_out = win->global_alpha; + return ret; +} + +int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (i && !dev->fmt_out->can_do_overlay) { + dprintk(dev, 1, "unsupported output format for output overlay\n"); + return -EINVAL; + } + + dev->overlay_out_enabled = i; + return 0; +} + +int vivid_vid_out_g_fbuf(struct file *file, void *fh, + struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + + a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | + V4L2_FBUF_CAP_BITMAP_CLIPPING | + V4L2_FBUF_CAP_LIST_CLIPPING | + V4L2_FBUF_CAP_CHROMAKEY | + V4L2_FBUF_CAP_SRC_CHROMAKEY | + V4L2_FBUF_CAP_GLOBAL_ALPHA | + V4L2_FBUF_CAP_LOCAL_ALPHA | + V4L2_FBUF_CAP_LOCAL_INV_ALPHA; + a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags; + a->base = (void *)dev->video_pbase; + a->fmt.width = dev->display_width; + a->fmt.height = dev->display_height; + if (dev->fb_defined.green.length == 5) + a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555; + else + a->fmt.pixelformat = V4L2_PIX_FMT_RGB565; + a->fmt.bytesperline = dev->display_byte_stride; + a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline; + a->fmt.field = V4L2_FIELD_NONE; + a->fmt.colorspace = V4L2_COLORSPACE_SRGB; + a->fmt.priv = 0; + return 0; +} + +int vivid_vid_out_s_fbuf(struct file *file, void *fh, + const struct v4l2_framebuffer *a) +{ + struct vivid_dev *dev = video_drvdata(file); + const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY | + V4L2_FBUF_FLAG_SRC_CHROMAKEY; + const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA | + V4L2_FBUF_FLAG_LOCAL_ALPHA | + V4L2_FBUF_FLAG_LOCAL_INV_ALPHA; + + + if ((a->flags & chroma_flags) == chroma_flags) + return -EINVAL; + switch (a->flags & alpha_flags) { + case 0: + case V4L2_FBUF_FLAG_GLOBAL_ALPHA: + case V4L2_FBUF_FLAG_LOCAL_ALPHA: + case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA: + break; + default: + return -EINVAL; + } + dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags); + dev->fbuf_out_flags = a->flags & (chroma_flags | alpha_flags); + return 0; +} + +static const struct v4l2_audioout vivid_audio_outputs[] = { + { 0, "Line-Out 1" }, + { 1, "Line-Out 2" }, +}; + +int vidioc_enum_output(struct file *file, void *priv, + struct v4l2_output *out) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (out->index >= dev->num_outputs) + return -EINVAL; + + out->type = V4L2_OUTPUT_TYPE_ANALOG; + switch (dev->output_type[out->index]) { + case SVID: + snprintf(out->name, sizeof(out->name), "S-Video %u", + dev->output_name_counter[out->index]); + out->std = V4L2_STD_ALL; + if (dev->has_audio_outputs) + out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1; + out->capabilities = V4L2_OUT_CAP_STD; + break; + case HDMI: + snprintf(out->name, sizeof(out->name), "HDMI %u", + dev->output_name_counter[out->index]); + out->capabilities = V4L2_OUT_CAP_DV_TIMINGS; + break; + } + return 0; +} + +int vidioc_g_output(struct file *file, void *priv, unsigned *o) +{ + struct vivid_dev *dev = video_drvdata(file); + + *o = dev->output; + return 0; +} + +int vidioc_s_output(struct file *file, void *priv, unsigned o) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (o >= dev->num_outputs) + return -EINVAL; + + if (o == dev->output) + return 0; + + if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q)) + return -EBUSY; + + dev->output = o; + dev->tv_audio_output = 0; + if (dev->output_type[o] == SVID) + dev->vid_out_dev.tvnorms = V4L2_STD_ALL; + else + dev->vid_out_dev.tvnorms = 0; + + dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms; + vivid_update_format_out(dev); + return 0; +} + +int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout) +{ + if (vout->index >= ARRAY_SIZE(vivid_audio_outputs)) + return -EINVAL; + *vout = vivid_audio_outputs[vout->index]; + return 0; +} + +int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -EINVAL; + *vout = vivid_audio_outputs[dev->tv_audio_output]; + return 0; +} + +int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -EINVAL; + if (vout->index >= ARRAY_SIZE(vivid_audio_outputs)) + return -EINVAL; + dev->tv_audio_output = vout->index; + return 0; +} + +int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_svid_out(dev)) + return -ENODATA; + if (dev->std_out == id) + return 0; + if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q)) + return -EBUSY; + dev->std_out = id; + vivid_update_format_out(dev); + return 0; +} + +int vivid_vid_out_s_dv_timings(struct file *file, void *_fh, + struct v4l2_dv_timings *timings) +{ + struct vivid_dev *dev = video_drvdata(file); + + if (!vivid_is_hdmi_out(dev)) + return -ENODATA; + if (vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; + if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap, + 0, NULL, NULL)) + return -EINVAL; + if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0)) + return 0; + dev->dv_timings_out = *timings; + vivid_update_format_out(dev); + return 0; +} + +int vivid_vid_out_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_OUTPUT_MPLANE : + V4L2_BUF_TYPE_VIDEO_OUTPUT)) + return -EINVAL; + + parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.output.timeperframe = dev->timeperframe_vid_out; + parm->parm.output.writebuffers = 1; +return 0; +} + +int vidioc_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subscribe_event(fh, sub); + case V4L2_EVENT_SOURCE_CHANGE: + if (fh->vdev->vfl_dir == VFL_DIR_RX) + return v4l2_src_change_event_subscribe(fh, sub); + break; + default: + break; + } + return -EINVAL; +} |
