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352 lines
13 KiB
Diff
352 lines
13 KiB
Diff
From cb053a15c5c23e775647d6b65fef4c378bf34b5b Mon Sep 17 00:00:00 2001
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From: Chen-Yu Tsai <wens@csie.org>
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Date: Thu, 18 Jul 2019 17:07:05 +0800
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Subject: [PATCH] staging: bcm2835-codec: switch to multi-planar API
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There are two APIs for mem2mem devices, the older single-planar API and
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the newer multi-planar one. Without making things overly complex, the
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driver can only support one or the other. However the userspace libv4l2
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library has a plugin that allows multi-planar API devices to service
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single-planar consumers.
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Chromium supports the multi-planar API exclusively, though this is
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currently limited to ChromiumOS. It would be possible to add support
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for generic Linux.
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Switching to the multi-planar API would allow usage of both APIs from
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userspace.
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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---
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.../bcm2835-codec/bcm2835-v4l2-codec.c | 145 +++++++++---------
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1 file changed, 76 insertions(+), 69 deletions(-)
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--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
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+++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
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@@ -504,7 +504,7 @@ static struct bcm2835_codec_fmt *find_fo
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for (k = 0; k < fmts->num_entries; k++) {
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fmt = &fmts->list[k];
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- if (fmt->fourcc == f->fmt.pix.pixelformat)
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+ if (fmt->fourcc == f->fmt.pix_mp.pixelformat)
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break;
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}
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if (k == fmts->num_entries)
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@@ -522,9 +522,9 @@ static struct bcm2835_codec_q_data *get_
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enum v4l2_buf_type type)
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{
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switch (type) {
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- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
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+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
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return &ctx->q_data[V4L2_M2M_SRC];
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- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
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+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
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return &ctx->q_data[V4L2_M2M_DST];
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default:
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v4l2_err(&ctx->dev->v4l2_dev, "%s: Invalid queue type %u\n",
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@@ -541,9 +541,9 @@ static struct vchiq_mmal_port *get_port_
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return NULL;
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switch (type) {
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- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
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+ case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
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return &ctx->component->input[0];
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- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
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+ case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
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return &ctx->component->output[0];
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default:
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v4l2_err(&ctx->dev->v4l2_dev, "%s: Invalid queue type %u\n",
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@@ -752,7 +752,7 @@ static void handle_fmt_changed(struct bc
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format->es.video.crop.width, format->es.video.crop.height,
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format->es.video.color_space);
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- q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
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+ q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
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q_data->crop_width = format->es.video.crop.width;
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q_data->crop_height = format->es.video.crop.height;
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q_data->bytesperline = format->es.video.crop.width;
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@@ -945,7 +945,7 @@ static int vidioc_querycap(struct file *
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strncpy(cap->card, MEM2MEM_NAME, sizeof(cap->card) - 1);
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snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
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MEM2MEM_NAME);
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- cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
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+ cap->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
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cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
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return 0;
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}
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@@ -996,16 +996,20 @@ static int vidioc_g_fmt(struct bcm2835_c
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q_data = get_q_data(ctx, f->type);
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- f->fmt.pix.width = q_data->crop_width;
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- f->fmt.pix.height = q_data->height;
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- f->fmt.pix.field = V4L2_FIELD_NONE;
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- f->fmt.pix.pixelformat = q_data->fmt->fourcc;
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- f->fmt.pix.bytesperline = q_data->bytesperline;
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- f->fmt.pix.sizeimage = q_data->sizeimage;
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- f->fmt.pix.colorspace = ctx->colorspace;
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- f->fmt.pix.xfer_func = ctx->xfer_func;
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- f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
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- f->fmt.pix.quantization = ctx->quant;
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+ f->fmt.pix_mp.width = q_data->crop_width;
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+ f->fmt.pix_mp.height = q_data->height;
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+ f->fmt.pix_mp.pixelformat = q_data->fmt->fourcc;
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+ f->fmt.pix_mp.field = V4L2_FIELD_NONE;
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+ f->fmt.pix_mp.colorspace = ctx->colorspace;
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+ f->fmt.pix_mp.plane_fmt[0].sizeimage = q_data->sizeimage;
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+ f->fmt.pix_mp.plane_fmt[0].bytesperline = q_data->bytesperline;
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+ f->fmt.pix_mp.num_planes = 1;
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+ f->fmt.pix_mp.ycbcr_enc = ctx->ycbcr_enc;
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+ f->fmt.pix_mp.quantization = ctx->quant;
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+ f->fmt.pix_mp.xfer_func = ctx->xfer_func;
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+
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+ memset(f->fmt.pix_mp.plane_fmt[0].reserved, 0,
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+ sizeof(f->fmt.pix_mp.plane_fmt[0].reserved));
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return 0;
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}
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@@ -1029,17 +1033,17 @@ static int vidioc_try_fmt(struct bcm2835
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* The V4L2 specification requires the driver to correct the format
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* struct if any of the dimensions is unsupported
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*/
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- if (f->fmt.pix.width > MAX_W)
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- f->fmt.pix.width = MAX_W;
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- if (f->fmt.pix.height > MAX_H)
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- f->fmt.pix.height = MAX_H;
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+ if (f->fmt.pix_mp.width > MAX_W)
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+ f->fmt.pix_mp.width = MAX_W;
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+ if (f->fmt.pix_mp.height > MAX_H)
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+ f->fmt.pix_mp.height = MAX_H;
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if (!fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
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/* Only clip min w/h on capture. Treat 0x0 as unknown. */
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- if (f->fmt.pix.width < MIN_W)
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- f->fmt.pix.width = MIN_W;
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- if (f->fmt.pix.height < MIN_H)
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- f->fmt.pix.height = MIN_H;
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+ if (f->fmt.pix_mp.width < MIN_W)
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+ f->fmt.pix_mp.width = MIN_W;
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+ if (f->fmt.pix_mp.height < MIN_H)
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+ f->fmt.pix_mp.height = MIN_H;
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/*
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* For codecs the buffer must have a vertical alignment of 16
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@@ -1048,16 +1052,18 @@ static int vidioc_try_fmt(struct bcm2835
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* some of the pixels are active.
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*/
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if (ctx->dev->role != ISP)
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- f->fmt.pix.height = ALIGN(f->fmt.pix.height, 16);
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+ f->fmt.pix_mp.height = ALIGN(f->fmt.pix_mp.height, 16);
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}
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- f->fmt.pix.bytesperline = get_bytesperline(f->fmt.pix.width,
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- fmt);
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- f->fmt.pix.sizeimage = get_sizeimage(f->fmt.pix.bytesperline,
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- f->fmt.pix.width,
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- f->fmt.pix.height,
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- fmt);
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+ f->fmt.pix_mp.num_planes = 1;
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+ f->fmt.pix_mp.plane_fmt[0].bytesperline =
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+ get_bytesperline(f->fmt.pix_mp.width, fmt);
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+ f->fmt.pix_mp.plane_fmt[0].sizeimage =
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+ get_sizeimage(f->fmt.pix_mp.plane_fmt[0].bytesperline,
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+ f->fmt.pix_mp.width, f->fmt.pix_mp.height, fmt);
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+ memset(f->fmt.pix_mp.plane_fmt[0].reserved, 0,
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+ sizeof(f->fmt.pix_mp.plane_fmt[0].reserved));
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- f->fmt.pix.field = V4L2_FIELD_NONE;
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+ f->fmt.pix_mp.field = V4L2_FIELD_NONE;
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return 0;
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}
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@@ -1070,8 +1076,8 @@ static int vidioc_try_fmt_vid_cap(struct
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fmt = find_format(f, ctx->dev, true);
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if (!fmt) {
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- f->fmt.pix.pixelformat = get_default_format(ctx->dev,
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- true)->fourcc;
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+ f->fmt.pix_mp.pixelformat = get_default_format(ctx->dev,
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+ true)->fourcc;
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fmt = find_format(f, ctx->dev, true);
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}
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@@ -1086,13 +1092,13 @@ static int vidioc_try_fmt_vid_out(struct
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fmt = find_format(f, ctx->dev, false);
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if (!fmt) {
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- f->fmt.pix.pixelformat = get_default_format(ctx->dev,
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- false)->fourcc;
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+ f->fmt.pix_mp.pixelformat = get_default_format(ctx->dev,
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+ false)->fourcc;
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fmt = find_format(f, ctx->dev, false);
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}
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- if (!f->fmt.pix.colorspace)
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- f->fmt.pix.colorspace = ctx->colorspace;
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+ if (!f->fmt.pix_mp.colorspace)
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+ f->fmt.pix_mp.colorspace = ctx->colorspace;
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return vidioc_try_fmt(ctx, f, fmt);
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}
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@@ -1106,9 +1112,10 @@ static int vidioc_s_fmt(struct bcm2835_c
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bool update_capture_port = false;
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int ret;
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- v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "Setting format for type %d, wxh: %dx%d, fmt: %08x, size %u\n",
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- f->type, f->fmt.pix.width, f->fmt.pix.height,
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- f->fmt.pix.pixelformat, f->fmt.pix.sizeimage);
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+ v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "Setting format for type %d, wxh: %dx%d, fmt: %08x, size %u\n",
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+ f->type, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
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+ f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.plane_fmt[0].sizeimage);
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+
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
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if (!vq)
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@@ -1124,9 +1131,9 @@ static int vidioc_s_fmt(struct bcm2835_c
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}
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q_data->fmt = find_format(f, ctx->dev,
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- f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE);
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- q_data->crop_width = f->fmt.pix.width;
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- q_data->height = f->fmt.pix.height;
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+ f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
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+ q_data->crop_width = f->fmt.pix_mp.width;
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+ q_data->height = f->fmt.pix_mp.height;
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if (!q_data->selection_set)
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q_data->crop_height = requested_height;
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@@ -1134,21 +1141,21 @@ static int vidioc_s_fmt(struct bcm2835_c
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* Copying the behaviour of vicodec which retains a single set of
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* colorspace parameters for both input and output.
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*/
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- ctx->colorspace = f->fmt.pix.colorspace;
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- ctx->xfer_func = f->fmt.pix.xfer_func;
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- ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
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- ctx->quant = f->fmt.pix.quantization;
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+ ctx->colorspace = f->fmt.pix_mp.colorspace;
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+ ctx->xfer_func = f->fmt.pix_mp.xfer_func;
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+ ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
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+ ctx->quant = f->fmt.pix_mp.quantization;
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/* All parameters should have been set correctly by try_fmt */
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- q_data->bytesperline = f->fmt.pix.bytesperline;
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- q_data->sizeimage = f->fmt.pix.sizeimage;
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+ q_data->bytesperline = f->fmt.pix_mp.plane_fmt[0].bytesperline;
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+ q_data->sizeimage = f->fmt.pix_mp.plane_fmt[0].sizeimage;
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v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "Calulated bpl as %u, size %u\n",
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q_data->bytesperline, q_data->sizeimage);
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if (ctx->dev->role == DECODE &&
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q_data->fmt->flags & V4L2_FMT_FLAG_COMPRESSED &&
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- f->fmt.pix.width && f->fmt.pix.height) {
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+ q_data->crop_width && q_data->height) {
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/*
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* On the decoder, if provided with a resolution on the input
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* side, then replicate that to the output side.
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@@ -1165,7 +1172,7 @@ static int vidioc_s_fmt(struct bcm2835_c
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q_data_dst->height = ALIGN(q_data->crop_height, 16);
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q_data_dst->bytesperline =
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- get_bytesperline(f->fmt.pix.width, q_data_dst->fmt);
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+ get_bytesperline(f->fmt.pix_mp.width, q_data_dst->fmt);
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q_data_dst->sizeimage = get_sizeimage(q_data_dst->bytesperline,
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q_data_dst->crop_width,
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q_data_dst->height,
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@@ -1215,7 +1222,7 @@ static int vidioc_s_fmt(struct bcm2835_c
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static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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- unsigned int height = f->fmt.pix.height;
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+ unsigned int height = f->fmt.pix_mp.height;
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int ret;
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ret = vidioc_try_fmt_vid_cap(file, priv, f);
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@@ -1228,7 +1235,7 @@ static int vidioc_s_fmt_vid_cap(struct f
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static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
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struct v4l2_format *f)
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{
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- unsigned int height = f->fmt.pix.height;
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+ unsigned int height = f->fmt.pix_mp.height;
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int ret;
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ret = vidioc_try_fmt_vid_out(file, priv, f);
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@@ -1244,7 +1251,7 @@ static int vidioc_g_selection(struct fil
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{
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struct bcm2835_codec_ctx *ctx = file2ctx(file);
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struct bcm2835_codec_q_data *q_data;
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- bool capture_queue = s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ?
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+ bool capture_queue = s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ?
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true : false;
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if ((ctx->dev->role == DECODE && !capture_queue) ||
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@@ -1307,7 +1314,7 @@ static int vidioc_s_selection(struct fil
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{
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struct bcm2835_codec_ctx *ctx = file2ctx(file);
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struct bcm2835_codec_q_data *q_data = NULL;
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- bool capture_queue = s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ?
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+ bool capture_queue = s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ?
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true : false;
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v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: ctx %p, type %d, q_data %p, target %d, rect x/y %d/%d, w/h %ux%u\n",
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@@ -1368,7 +1375,7 @@ static int vidioc_s_parm(struct file *fi
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{
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struct bcm2835_codec_ctx *ctx = file2ctx(file);
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- if (parm->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
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+ if (parm->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
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return -EINVAL;
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ctx->framerate_num =
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@@ -1738,15 +1745,15 @@ static int vidioc_encoder_cmd(struct fil
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static const struct v4l2_ioctl_ops bcm2835_codec_ioctl_ops = {
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.vidioc_querycap = vidioc_querycap,
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- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
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- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
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- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
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- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
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-
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- .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
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- .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
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- .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
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- .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
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+ .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap,
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+ .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap,
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+ .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap,
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+ .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap,
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+
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+ .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out,
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+ .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out,
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+ .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out,
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+ .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out,
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.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
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.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
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@@ -2089,7 +2096,7 @@ static int bcm2835_codec_start_streaming
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ctx->component_enabled = true;
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}
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- if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
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+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
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/*
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* Create the EOS buffer.
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* We only need the MMAL part, and want to NOT attach a memory
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@@ -2216,7 +2223,7 @@ static int queue_init(void *priv, struct
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struct bcm2835_codec_ctx *ctx = priv;
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int ret;
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- src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
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src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
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src_vq->drv_priv = ctx;
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src_vq->buf_struct_size = sizeof(struct m2m_mmal_buffer);
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@@ -2230,7 +2237,7 @@ static int queue_init(void *priv, struct
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if (ret)
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return ret;
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- dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
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dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
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dst_vq->drv_priv = ctx;
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dst_vq->buf_struct_size = sizeof(struct m2m_mmal_buffer);
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