[v2,1/2] media: mgb4: Add support for YUV image formats

Message ID	20240307121822.1852-2-tumic@gpxsee.org (mailing list archive)
State	New, archived
Headers	show Received: from mx.gpxsee.org (mx.gpxsee.org [37.205.14.76]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5FF2386AE9; Thu, 7 Mar 2024 11:18:31 +0000 (UTC) From: tumic@gpxsee.org To: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Mar?= =?utf-8?q?tin_T=C5=AFma?= <martin.tuma@digiteqautomotive.com> Subject: [PATCH v2 1/2] media: mgb4: Add support for YUV image formats Date: Thu, 7 Mar 2024 13:18:21 +0100 Message-ID: <20240307121822.1852-2-tumic@gpxsee.org> In-Reply-To: <20240307121822.1852-1-tumic@gpxsee.org> References: <20240307121822.1852-1-tumic@gpxsee.org> Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Series	media: mgb4: YUV and variable framerate support \| expand [v2,0/2] media: mgb4: YUV and variable framerate support [v2,1/2] media: mgb4: Add support for YUV image formats [v2,2/2] media: mgb4: Add support for V4L2_CAP_TIMEPERFRAME

diff --git a/drivers/media/pci/mgb4/mgb4_io.h b/drivers/media/pci/mgb4/mgb4_io.h index 8698db1be4a9..204613a6685c 100644 --- a/drivers/media/pci/mgb4/mgb4_io.h +++ b/drivers/media/pci/mgb4/mgb4_io.h @@ -30,4 +30,11 @@ static inline struct mgb4_frame_buffer *to_frame_buffer(struct vb2_v4l2_buffer * return container_of(vbuf, struct mgb4_frame_buffer, vb); } +static inline bool has_yuv(struct mgb4_regs *video) +{ + u32 status = mgb4_read_reg(video, 0xD0); + + return (status & (1U << 8)); +} + #endif diff --git a/drivers/media/pci/mgb4/mgb4_vin.c b/drivers/media/pci/mgb4/mgb4_vin.c index 2cd78c539889..19692e4dfb59 100644 --- a/drivers/media/pci/mgb4/mgb4_vin.c +++ b/drivers/media/pci/mgb4/mgb4_vin.c @@ -186,8 +186,11 @@ static int queue_setup(struct vb2_queue *q, unsigned int *nbuffers, struct device *alloc_devs[]) { struct mgb4_vin_dev *vindev = vb2_get_drv_priv(q); + struct mgb4_regs *video = &vindev->mgbdev->video; + u32 config = mgb4_read_reg(video, vindev->config->regs.config); + u32 pixelsize = (config & (1U << 16)) ? 2 : 4; unsigned int size = (vindev->timings.bt.width + vindev->padding) - * vindev->timings.bt.height * 4; + * vindev->timings.bt.height * pixelsize; /* * If I/O reconfiguration is in process, do not allow to start @@ -220,9 +223,12 @@ static int buffer_init(struct vb2_buffer *vb) static int buffer_prepare(struct vb2_buffer *vb) { struct mgb4_vin_dev *vindev = vb2_get_drv_priv(vb->vb2_queue); + struct mgb4_regs *video = &vindev->mgbdev->video; struct device *dev = &vindev->mgbdev->pdev->dev; + u32 config = mgb4_read_reg(video, vindev->config->regs.config); + u32 pixelsize = (config & (1U << 16)) ? 2 : 4; unsigned int size = (vindev->timings.bt.width + vindev->padding) - * vindev->timings.bt.height * 4; + * vindev->timings.bt.height * pixelsize; if (vb2_plane_size(vb, 0) < size) { dev_err(dev, "buffer too small (%lu < %u)\n", @@ -359,22 +365,33 @@ static int vidioc_querycap(struct file *file, void *priv, static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) { - if (f->index != 0) - return -EINVAL; + struct mgb4_vin_dev *vindev = video_drvdata(file); + struct mgb4_regs *video = &vindev->mgbdev->video; - f->pixelformat = V4L2_PIX_FMT_ABGR32; + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; - return 0; + if (f->index == 0) { + f->pixelformat = V4L2_PIX_FMT_ABGR32; + return 0; + } else if (f->index == 1 && has_yuv(video)) { + f->pixelformat = V4L2_PIX_FMT_YUYV; + return 0; + } else { + return -EINVAL; + } } static int vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *ival) { struct mgb4_vin_dev *vindev = video_drvdata(file); + struct mgb4_regs *video = &vindev->mgbdev->video; if (ival->index != 0) return -EINVAL; - if (ival->pixel_format != V4L2_PIX_FMT_ABGR32) + if (!(ival->pixel_format == V4L2_PIX_FMT_ABGR32 || + ((has_yuv(video) && ival->pixel_format == V4L2_PIX_FMT_YUYV)))) return -EINVAL; if (ival->width != vindev->timings.bt.width || ival->height != vindev->timings.bt.height) @@ -393,13 +410,32 @@ static int vidioc_enum_frameintervals(struct file *file, void *priv, static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vin_dev *vindev = video_drvdata(file); + struct mgb4_regs *video = &vindev->mgbdev->video; + u32 config = mgb4_read_reg(video, vindev->config->regs.config); + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; f->fmt.pix.width = vindev->timings.bt.width; f->fmt.pix.height = vindev->timings.bt.height; f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; - f->fmt.pix.bytesperline = (f->fmt.pix.width + vindev->padding) * 4; + + if (config & (1U << 16)) { + f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + if (config & (1U << 20)) { + f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; + } else { + if (config & (1U << 19)) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + else + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + } + f->fmt.pix.bytesperline = (f->fmt.pix.width + vindev->padding) * 2; + } else { + f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; + f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; + f->fmt.pix.bytesperline = (f->fmt.pix.width + vindev->padding) * 4; + } f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; return 0; @@ -408,14 +444,33 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vin_dev *vindev = video_drvdata(file); + struct mgb4_regs *video = &vindev->mgbdev->video; + u32 pixelsize; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; f->fmt.pix.width = vindev->timings.bt.width; f->fmt.pix.height = vindev->timings.bt.height; f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; - f->fmt.pix.bytesperline = max(f->fmt.pix.width * 4, - ALIGN_DOWN(f->fmt.pix.bytesperline, 4)); + + if (has_yuv(video) && f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) { + pixelsize = 2; + if (!(f->fmt.pix.colorspace == V4L2_COLORSPACE_REC709 || + f->fmt.pix.colorspace == V4L2_COLORSPACE_SMPTE170M)) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + } else { + pixelsize = 4; + f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; + f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; + } + + if (f->fmt.pix.bytesperline > f->fmt.pix.width * pixelsize + && f->fmt.pix.bytesperline < f->fmt.pix.width * pixelsize * 2) + f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline, + pixelsize); + else + f->fmt.pix.bytesperline = f->fmt.pix.width * pixelsize; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; return 0; @@ -425,13 +480,39 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vin_dev *vindev = video_drvdata(file); struct mgb4_regs *video = &vindev->mgbdev->video; + u32 config, pixelsize; + int ret; if (vb2_is_busy(&vindev->queue)) return -EBUSY; - vidioc_try_fmt(file, priv, f); + ret = vidioc_try_fmt(file, priv, f); + if (ret < 0) + return ret; + + config = mgb4_read_reg(video, vindev->config->regs.config); + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) { + pixelsize = 2; + config |= 1U << 16; + + if (f->fmt.pix.colorspace == V4L2_COLORSPACE_REC709) { + config |= 1U << 20; + config |= 1U << 19; + } else if (f->fmt.pix.colorspace == V4L2_COLORSPACE_SMPTE170M) { + config &= ~(1U << 20); + config |= 1U << 19; + } else { + config &= ~(1U << 20); + config &= ~(1U << 19); + } + } else { + pixelsize = 4; + config &= ~(1U << 16); + } + mgb4_write_reg(video, vindev->config->regs.config, config); - vindev->padding = (f->fmt.pix.bytesperline - (f->fmt.pix.width * 4)) / 4; + vindev->padding = (f->fmt.pix.bytesperline - (f->fmt.pix.width + * pixelsize)) / pixelsize; mgb4_write_reg(video, vindev->config->regs.padding, vindev->padding); set_loopback_padding(vindev, vindev->padding); @@ -467,7 +548,8 @@ static int vidioc_enum_framesizes(struct file *file, void *fh, { struct mgb4_vin_dev *vindev = video_drvdata(file); - if (fsize->index != 0 || fsize->pixel_format != V4L2_PIX_FMT_ABGR32) + if (fsize->index != 0 || !(fsize->pixel_format == V4L2_PIX_FMT_ABGR32 || + fsize->pixel_format == V4L2_PIX_FMT_YUYV)) return -EINVAL; fsize->discrete.width = vindev->timings.bt.width; diff --git a/drivers/media/pci/mgb4/mgb4_vout.c b/drivers/media/pci/mgb4/mgb4_vout.c index 241353ee77a5..243fbeaaceb9 100644 --- a/drivers/media/pci/mgb4/mgb4_vout.c +++ b/drivers/media/pci/mgb4/mgb4_vout.c @@ -59,7 +59,11 @@ static int queue_setup(struct vb2_queue *q, unsigned int *nbuffers, struct device *alloc_devs[]) { struct mgb4_vout_dev *voutdev = vb2_get_drv_priv(q); - unsigned int size; + struct mgb4_regs *video = &voutdev->mgbdev->video; + u32 config = mgb4_read_reg(video, voutdev->config->regs.config); + u32 pixelsize = (config & (1U << 16)) ? 2 : 4; + unsigned int size = (voutdev->width + voutdev->padding) * voutdev->height + * pixelsize; /* * If I/O reconfiguration is in process, do not allow to start @@ -69,8 +73,6 @@ static int queue_setup(struct vb2_queue *q, unsigned int *nbuffers, if (test_bit(0, &voutdev->mgbdev->io_reconfig)) return -EBUSY; - size = (voutdev->width + voutdev->padding) * voutdev->height * 4; - if (*nplanes) return sizes[0] < size ? -EINVAL : 0; *nplanes = 1; @@ -93,9 +95,11 @@ static int buffer_prepare(struct vb2_buffer *vb) { struct mgb4_vout_dev *voutdev = vb2_get_drv_priv(vb->vb2_queue); struct device *dev = &voutdev->mgbdev->pdev->dev; - unsigned int size; - - size = (voutdev->width + voutdev->padding) * voutdev->height * 4; + struct mgb4_regs *video = &voutdev->mgbdev->video; + u32 config = mgb4_read_reg(video, voutdev->config->regs.config); + u32 pixelsize = (config & (1U << 16)) ? 2 : 4; + unsigned int size = (voutdev->width + voutdev->padding) * voutdev->height + * pixelsize; if (vb2_plane_size(vb, 0) < size) { dev_err(dev, "buffer too small (%lu < %u)\n", @@ -194,24 +198,53 @@ static int vidioc_querycap(struct file *file, void *priv, static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) { - if (f->index != 0) - return -EINVAL; + struct mgb4_vin_dev *voutdev = video_drvdata(file); + struct mgb4_regs *video = &voutdev->mgbdev->video; - f->pixelformat = V4L2_PIX_FMT_ABGR32; + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; - return 0; + if (f->index == 0) { + f->pixelformat = V4L2_PIX_FMT_ABGR32; + return 0; + } else if (f->index == 1 && has_yuv(video)) { + f->pixelformat = V4L2_PIX_FMT_YUYV; + return 0; + } else { + return -EINVAL; + } } static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vout_dev *voutdev = video_drvdata(file); + struct mgb4_regs *video = &voutdev->mgbdev->video; + u32 config = mgb4_read_reg(video, voutdev->config->regs.config); + + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; f->fmt.pix.width = voutdev->width; f->fmt.pix.height = voutdev->height; f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; - f->fmt.pix.bytesperline = (f->fmt.pix.width + voutdev->padding) * 4; + + if (config & (1U << 16)) { + f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; + if (config & (1U << 20)) { + f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; + } else { + if (config & (1U << 19)) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + else + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + } + f->fmt.pix.bytesperline = (f->fmt.pix.width + voutdev->padding) * 2; + } else { + f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; + f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; + f->fmt.pix.bytesperline = (f->fmt.pix.width + voutdev->padding) * 4; + } + f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; return 0; @@ -220,14 +253,33 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vout_dev *voutdev = video_drvdata(file); + struct mgb4_regs *video = &voutdev->mgbdev->video; + u32 pixelsize; + + if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; - f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; f->fmt.pix.width = voutdev->width; f->fmt.pix.height = voutdev->height; f->fmt.pix.field = V4L2_FIELD_NONE; - f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; - f->fmt.pix.bytesperline = max(f->fmt.pix.width * 4, - ALIGN_DOWN(f->fmt.pix.bytesperline, 4)); + + if (has_yuv(video) && f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) { + pixelsize = 2; + if (!(f->fmt.pix.colorspace == V4L2_COLORSPACE_REC709 || + f->fmt.pix.colorspace == V4L2_COLORSPACE_SMPTE170M)) + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + } else { + pixelsize = 4; + f->fmt.pix.pixelformat = V4L2_PIX_FMT_ABGR32; + f->fmt.pix.colorspace = V4L2_COLORSPACE_RAW; + } + + if (f->fmt.pix.bytesperline > f->fmt.pix.width * pixelsize + && f->fmt.pix.bytesperline < f->fmt.pix.width * pixelsize * 2) + f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline, + pixelsize); + else + f->fmt.pix.bytesperline = f->fmt.pix.width * pixelsize; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; return 0; @@ -237,13 +289,39 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f) { struct mgb4_vout_dev *voutdev = video_drvdata(file); struct mgb4_regs *video = &voutdev->mgbdev->video; + u32 config, pixelsize; + int ret; if (vb2_is_busy(&voutdev->queue)) return -EBUSY; - vidioc_try_fmt(file, priv, f); + ret = vidioc_try_fmt(file, priv, f); + if (ret < 0) + return ret; + + config = mgb4_read_reg(video, voutdev->config->regs.config); + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) { + pixelsize = 2; + config |= 1U << 16; + + if (f->fmt.pix.colorspace == V4L2_COLORSPACE_REC709) { + config |= 1U << 20; + config |= 1U << 19; + } else if (f->fmt.pix.colorspace == V4L2_COLORSPACE_SMPTE170M) { + config &= ~(1U << 20); + config |= 1U << 19; + } else { + config &= ~(1U << 20); + config &= ~(1U << 19); + } + } else { + pixelsize = 4; + config &= ~(1U << 16); + } + mgb4_write_reg(video, voutdev->config->regs.config, config); - voutdev->padding = (f->fmt.pix.bytesperline - (f->fmt.pix.width * 4)) / 4; + voutdev->padding = (f->fmt.pix.bytesperline - (f->fmt.pix.width + * pixelsize)) / pixelsize; mgb4_write_reg(video, voutdev->config->regs.padding, voutdev->padding); return 0;

[v2,1/2] media: mgb4: Add support for YUV image formats

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Patch