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