From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxx>
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
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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