RE: [PATCH 4/5] [media] imx-ipu: Add ipu media common code

From: linux-media-owner@vger.kernel.org [mailto:linux-media- owner@vger.kernel.org] On Behalf Of Philipp Zabel Sent: Tuesday, March 17, 2015 4:48 PM

To: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org; David Airlie; Mauro Carvalho Chehab; Steve Longerbeam; Hans Verkuil; Kamil Debski; Ian Molton; Jean- Michel Hautbois; kernel@pengutronix.de; Sascha Hauer; Lucas Stach; Philipp Zabel Subject: [PATCH 4/5] [media] imx-ipu: Add ipu media common code

From: Sascha Hauer s.hauer@pengutronix.de

Add video4linux API routines common to drivers for units that accept or provide video data via the i.MX IPU IDMAC channels, such as scaler or deinterlacer drivers.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de Signed-off-by: Lucas Stach l.stach@pengutronix.de Signed-off-by: Philipp Zabel p.zabel@pengutronix.de

Acked-by: Kamil Debski k.debski@samsung.com

---

drivers/media/platform/Kconfig | 2 + drivers/media/platform/Makefile | 1 + drivers/media/platform/imx/Kconfig | 2 + drivers/media/platform/imx/Makefile | 1 + drivers/media/platform/imx/imx-ipu.c | 313 +++++++++++++++++++++++++++++++++++ drivers/media/platform/imx/imx-ipu.h | 35 ++++ 6 files changed, 354 insertions(+) create mode 100644 drivers/media/platform/imx/Kconfig create mode 100644 drivers/media/platform/imx/Makefile create mode 100644 drivers/media/platform/imx/imx-ipu.c create mode 100644 drivers/media/platform/imx/imx-ipu.h

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index d9b872b..650a9a6 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -29,6 +29,8 @@ config VIDEO_VIA_CAMERA

source "drivers/media/platform/davinci/Kconfig"

+source "drivers/media/platform/imx/Kconfig"

source "drivers/media/platform/omap/Kconfig"

source "drivers/media/platform/blackfin/Kconfig" diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index 3ec1547..2e35581 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_SOC_CAMERA) += soc_camera/

obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/

+obj-y += imx/ obj-y += omap/

obj-$(CONFIG_VIDEO_AM437X_VPFE) += am437x/ diff --git a/drivers/media/platform/imx/Kconfig b/drivers/media/platform/imx/Kconfig new file mode 100644 index 0000000..a90c973 --- /dev/null +++ b/drivers/media/platform/imx/Kconfig @@ -0,0 +1,2 @@ +config VIDEO_IMX_IPU_COMMON

• tristate

diff --git a/drivers/media/platform/imx/Makefile b/drivers/media/platform/imx/Makefile new file mode 100644 index 0000000..5de119c --- /dev/null +++ b/drivers/media/platform/imx/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_VIDEO_IMX_IPU_COMMON) += imx-ipu.o diff --git a/drivers/media/platform/imx/imx-ipu.c b/drivers/media/platform/imx/imx-ipu.c new file mode 100644 index 0000000..c1b8637 --- /dev/null +++ b/drivers/media/platform/imx/imx-ipu.c @@ -0,0 +1,313 @@ +/*

• • i.MX IPUv3 common v4l2 support
• • Copyright (C) 2011 Sascha Hauer, Pengutronix
• • This program is free software; you can redistribute it and/or
• • modify it under the terms of the GNU General Public License
• • as published by the Free Software Foundation; either version 2
• • of the License, or (at your option) any later version.
• • This program is distributed in the hope that it will be useful,
• • but WITHOUT ANY WARRANTY; without even the implied warranty of
• • MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
• • GNU General Public License for more details.
• */

+#include <linux/module.h> +#include <media/v4l2-common.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-ioctl.h>

+#include "imx-ipu.h"

+static struct ipu_fmt ipu_fmt_yuv[] = {

• {

• .fourcc = V4L2_PIX_FMT_YUV420,
  

• .name = "YUV 4:2:0 planar, YCbCr",
  

• .bytes_per_pixel = 1,
  

• }, {

• .fourcc = V4L2_PIX_FMT_YVU420,
  

• .name = "YUV 4:2:0 planar, YCrCb",
  

• .bytes_per_pixel = 1,
  

• }, {

• .fourcc = V4L2_PIX_FMT_YUV422P,
  

• .name = "YUV 4:2:2 planar, YCbCr",
  

• .bytes_per_pixel = 1,
  

• }, {

• .fourcc = V4L2_PIX_FMT_NV12,
  

• .name = "YUV 4:2:0 partial interleaved, YCbCr",
  

• .bytes_per_pixel = 1,
  

• }, {

• .fourcc = V4L2_PIX_FMT_UYVY,
  

• .name = "4:2:2, packed, UYVY",
  

• .bytes_per_pixel = 2,
  

• }, {

• .fourcc = V4L2_PIX_FMT_YUYV,
  

• .name = "4:2:2, packed, YUYV",
  

• .bytes_per_pixel = 2,
  

• },

+};

+static struct ipu_fmt ipu_fmt_rgb[] = {

• {

• .fourcc = V4L2_PIX_FMT_RGB32,
  

• .name = "RGB888",
  

• .bytes_per_pixel = 4,
  

• }, {

• .fourcc = V4L2_PIX_FMT_RGB24,
  

• .name = "RGB24",
  

• .bytes_per_pixel = 3,
  

• }, {

• .fourcc = V4L2_PIX_FMT_BGR24,
  

• .name = "BGR24",
  

• .bytes_per_pixel = 3,
  

• }, {

• .fourcc = V4L2_PIX_FMT_RGB565,
  

• .name = "RGB565",
  

• .bytes_per_pixel = 2,
  

• },
• {

• .fourcc = V4L2_PIX_FMT_BGR32,
  

• .name = "BGR888",
  

• .bytes_per_pixel = 4,
  

• },

+};

+struct ipu_fmt *ipu_find_fmt_yuv(unsigned int pixelformat) {

• struct ipu_fmt *fmt;
• int i;
• for (i = 0; i < ARRAY_SIZE(ipu_fmt_yuv); i++) {

• fmt = &ipu_fmt_yuv[i];
  

• if (fmt->fourcc == pixelformat)
  

• 	return fmt;
  

• }
• return NULL;

+} +EXPORT_SYMBOL_GPL(ipu_find_fmt_yuv);

+struct ipu_fmt *ipu_find_fmt_rgb(unsigned int pixelformat) {

• struct ipu_fmt *fmt;
• int i;
• for (i = 0; i < ARRAY_SIZE(ipu_fmt_rgb); i++) {

• fmt = &ipu_fmt_rgb[i];
  

• if (fmt->fourcc == pixelformat)
  

• 	return fmt;
  

• }
• return NULL;

+} +EXPORT_SYMBOL_GPL(ipu_find_fmt_rgb);

+static struct ipu_fmt *ipu_find_fmt(unsigned long pixelformat) {

• struct ipu_fmt *fmt;
• fmt = ipu_find_fmt_yuv(pixelformat);
• if (fmt)

• return fmt;
  

• fmt = ipu_find_fmt_rgb(pixelformat);
• return fmt;

+} +EXPORT_SYMBOL_GPL(ipu_find_fmt);

+int ipu_try_fmt(struct file *file, void *fh,

• struct v4l2_format *f)
  

+{

• struct ipu_fmt *fmt;
• v4l_bound_align_image(&f->fmt.pix.width, 8, 4096, 2,

• 	      &f->fmt.pix.height, 2, 4096, 1, 0);
  

• f->fmt.pix.field = V4L2_FIELD_NONE;
• fmt = ipu_find_fmt(f->fmt.pix.pixelformat);
• if (!fmt)

• return -EINVAL;
  

• f->fmt.pix.bytesperline = f->fmt.pix.width * fmt->bytes_per_pixel;
• f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f-

...

fmt.pix.height;

• if (fmt->fourcc == V4L2_PIX_FMT_YUV420 ||

•    fmt->fourcc == V4L2_PIX_FMT_YVU420 ||
  

•    fmt->fourcc == V4L2_PIX_FMT_NV12)
  

• f->fmt.pix.sizeimage = f->fmt.pix.sizeimage * 3 / 2;
  

• else if (fmt->fourcc == V4L2_PIX_FMT_YUV422P)

• f->fmt.pix.sizeimage *= 2;
  

• f->fmt.pix.priv = 0;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_try_fmt);

+int ipu_try_fmt_rgb(struct file *file, void *fh,

• struct v4l2_format *f)
  

+{

• struct ipu_fmt *fmt;
• fmt = ipu_find_fmt_rgb(f->fmt.pix.pixelformat);
• if (!fmt)

• return -EINVAL;
  

• return ipu_try_fmt(file, fh, f);

+} +EXPORT_SYMBOL_GPL(ipu_try_fmt_rgb);

+int ipu_try_fmt_yuv(struct file *file, void *fh,

• struct v4l2_format *f)
  

+{

• struct ipu_fmt *fmt;
• fmt = ipu_find_fmt_yuv(f->fmt.pix.pixelformat);
• if (!fmt)

• return -EINVAL;
  

• return ipu_try_fmt(file, fh, f);

+} +EXPORT_SYMBOL_GPL(ipu_try_fmt_yuv);

+int ipu_enum_fmt_rgb(struct file *file, void *fh,

• struct v4l2_fmtdesc *f)
  

+{

• struct ipu_fmt *fmt;
• if (f->index >= ARRAY_SIZE(ipu_fmt_rgb))

• return -EINVAL;
  

• fmt = &ipu_fmt_rgb[f->index];
• strlcpy(f->description, fmt->name, sizeof(f->description));
• f->pixelformat = fmt->fourcc;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_enum_fmt_rgb);

+int ipu_enum_fmt_yuv(struct file *file, void *fh,

• struct v4l2_fmtdesc *f)
  

+{

• struct ipu_fmt *fmt;
• if (f->index >= ARRAY_SIZE(ipu_fmt_yuv))

• return -EINVAL;
  

• fmt = &ipu_fmt_yuv[f->index];
• strlcpy(f->description, fmt->name, sizeof(f->description));
• f->pixelformat = fmt->fourcc;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_enum_fmt_yuv);

+int ipu_enum_fmt(struct file *file, void *fh,

• struct v4l2_fmtdesc *f)
  

+{

• struct ipu_fmt *fmt;
• int index = f->index;
• if (index >= ARRAY_SIZE(ipu_fmt_yuv)) {

• index -= ARRAY_SIZE(ipu_fmt_yuv);
  

• if (index >= ARRAY_SIZE(ipu_fmt_rgb))
  

• 	return -EINVAL;
  

• fmt = &ipu_fmt_rgb[index];
  

• } else {

• fmt = &ipu_fmt_yuv[index];
  

• }
• strlcpy(f->description, fmt->name, sizeof(f->description));
• f->pixelformat = fmt->fourcc;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_enum_fmt);

+int ipu_s_fmt(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix) {
  

• int ret;
• ret = ipu_try_fmt(file, fh, f);
• if (ret)

• return ret;
  

• pix->width = f->fmt.pix.width;
• pix->height = f->fmt.pix.height;
• pix->pixelformat = f->fmt.pix.pixelformat;
• pix->bytesperline = f->fmt.pix.bytesperline;
• pix->sizeimage = f->fmt.pix.sizeimage;
• pix->colorspace = f->fmt.pix.colorspace;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_s_fmt);

+int ipu_s_fmt_rgb(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix) {
  

• struct ipu_fmt *fmt;
• fmt = ipu_find_fmt_rgb(f->fmt.pix.pixelformat);
• if (!fmt)

• return -EINVAL;
  

• return ipu_s_fmt(file, fh, f, pix);

+} +EXPORT_SYMBOL_GPL(ipu_s_fmt_rgb);

+int ipu_s_fmt_yuv(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix) {
  

• struct ipu_fmt *fmt;
• fmt = ipu_find_fmt_yuv(f->fmt.pix.pixelformat);
• if (!fmt)

• return -EINVAL;
  

• return ipu_s_fmt(file, fh, f, pix);

+} +EXPORT_SYMBOL_GPL(ipu_s_fmt_yuv);

+int ipu_g_fmt(struct v4l2_format *f, struct v4l2_pix_format *pix) {

• f->fmt.pix.field = V4L2_FIELD_NONE;
• f->fmt.pix.pixelformat = pix->pixelformat;
• f->fmt.pix.bytesperline = pix->bytesperline;
• f->fmt.pix.width = pix->width;
• f->fmt.pix.height = pix->height;
• f->fmt.pix.sizeimage = pix->sizeimage;
• f->fmt.pix.colorspace = pix->colorspace;
• f->fmt.pix.priv = 0;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_g_fmt);

+int ipu_enum_framesizes(struct file *file, void *fh,

• 	struct v4l2_frmsizeenum *fsize)
  

+{

• struct ipu_fmt *fmt;
• if (fsize->index != 0)

• return -EINVAL;
  

• fmt = ipu_find_fmt(fsize->pixel_format);
• if (!fmt)

• return -EINVAL;
  

• fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
• fsize->stepwise.min_width = 1;
• fsize->stepwise.min_height = 1;
• fsize->stepwise.max_width = 4096;
• fsize->stepwise.max_height = 4096;
• fsize->stepwise.step_width = fsize->stepwise.step_height = 1;
• return 0;

+} +EXPORT_SYMBOL_GPL(ipu_enum_framesizes);

+MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/imx/imx-ipu.h b/drivers/media/platform/imx/imx-ipu.h new file mode 100644 index 0000000..51c0982 --- /dev/null +++ b/drivers/media/platform/imx/imx-ipu.h @@ -0,0 +1,35 @@ +#ifndef __MEDIA_IMX_IPU_H +#define __MEDIA_IMX_IPU_H +#include <linux/videodev2.h>

+struct ipu_fmt {

• u32 fourcc;
• const char *name;
• int bytes_per_pixel;

+};

+int ipu_enum_fmt(struct file *file, void *fh,

• struct v4l2_fmtdesc *f);
  

+int ipu_enum_fmt_rgb(struct file *file, void *fh,

• struct v4l2_fmtdesc *f);
  

+int ipu_enum_fmt_yuv(struct file *file, void *fh,

• struct v4l2_fmtdesc *f);
  

+struct ipu_fmt *ipu_find_fmt_rgb(unsigned int pixelformat); struct +ipu_fmt *ipu_find_fmt_yuv(unsigned int pixelformat); int +ipu_try_fmt(struct file *file, void *fh,

• struct v4l2_format *f);
  

+int ipu_try_fmt_rgb(struct file *file, void *fh,

• struct v4l2_format *f);
  

+int ipu_try_fmt_yuv(struct file *file, void *fh,

• struct v4l2_format *f);
  

+int ipu_s_fmt(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix); int
  

+ipu_s_fmt_rgb(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix); int
  

+ipu_s_fmt_yuv(struct file *file, void *fh,

• struct v4l2_format *f, struct v4l2_pix_format *pix); int
  

+ipu_g_fmt(struct v4l2_format *f, struct v4l2_pix_format *pix); int +ipu_enum_framesizes(struct file *file, void *fh,

• 	struct v4l2_frmsizeenum *fsize);
  

+#endif /* __MEDIA_IMX_IPU_H */

2.1.4

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