From: Philipp Zabel <p.zabel@pengutronix.de>
To: linux-media@vger.kernel.org
Cc: Steve Longerbeam <steve_longerbeam@mentor.com>,
Marek Vasut <marex@denx.de>, Hans Verkuil <hverkuil@xs4all.nl>,
Gary Bisson <gary.bisson@boundarydevices.com>,
kernel@pengutronix.de, Sascha Hauer <s.hauer@pengutronix.de>,
Lucas Stach <l.stach@pengutronix.de>,
Philipp Zabel <p.zabel@pengutronix.de>
Subject: [PATCH v2 06/21] [media] imx: Add IPUv3 media common code
Date: Fri, 14 Oct 2016 19:34:26 +0200 [thread overview]
Message-ID: <1476466481-24030-7-git-send-email-p.zabel@pengutronix.de> (raw)
In-Reply-To: <1476466481-24030-1-git-send-email-p.zabel@pengutronix.de>
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 capture, mem2mem 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>
---
drivers/media/platform/imx/Kconfig | 3 +
drivers/media/platform/imx/Makefile | 1 +
drivers/media/platform/imx/imx-ipu.c | 321 +++++++++++++++++++++++++++++++++++
drivers/media/platform/imx/imx-ipu.h | 34 ++++
4 files changed, 359 insertions(+)
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/imx/Kconfig b/drivers/media/platform/imx/Kconfig
index 3bd699c..1662bb0b 100644
--- a/drivers/media/platform/imx/Kconfig
+++ b/drivers/media/platform/imx/Kconfig
@@ -5,3 +5,6 @@ config MEDIA_IMX
---help---
This driver provides a SoC wide media controller device that all
multimedia components in i.MX5 and i.MX6 SoCs can register with.
+
+config VIDEO_IMX_IPU_COMMON
+ tristate
diff --git a/drivers/media/platform/imx/Makefile b/drivers/media/platform/imx/Makefile
index 74bed76..0ba601a 100644
--- a/drivers/media/platform/imx/Makefile
+++ b/drivers/media/platform/imx/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_MEDIA_IMX) += imx-media.o
+obj-$(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..da1deb0
--- /dev/null
+++ b/drivers/media/platform/imx/imx-ipu.c
@@ -0,0 +1,321 @@
+/*
+ * i.MX IPUv3 common v4l2 support
+ *
+ * Copyright (C) 2011 Pengutronix, Sascha Hauer <kernel@pengutronix.de>
+ *
+ * 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"
+
+/*
+ * These formats are in order of preference: interleaved YUV first,
+ * because those are the most bandwidth efficient, followed by
+ * chroma-interleaved formats, and planar formats last.
+ * In each category, YUV 4:2:0 may be preferrable to 4:2:2 for bandwidth
+ * reasons, if the IDMAC channel supports double read/write reduction
+ * (all write channels, VDIC read channels).
+ */
+static struct ipu_fmt ipu_fmt_yuv[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .bytes_per_pixel = 2,
+ }, {
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .bytes_per_pixel = 2,
+ }, {
+ .fourcc = V4L2_PIX_FMT_NV12,
+ .bytes_per_pixel = 1,
+ }, {
+ .fourcc = V4L2_PIX_FMT_NV16,
+ .bytes_per_pixel = 1,
+ }, {
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .bytes_per_pixel = 1,
+ }, {
+ .fourcc = V4L2_PIX_FMT_YVU420,
+ .bytes_per_pixel = 1,
+ }, {
+ .fourcc = V4L2_PIX_FMT_YUV422P,
+ .bytes_per_pixel = 1,
+ },
+};
+
+static struct ipu_fmt ipu_fmt_rgb[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .bytes_per_pixel = 4,
+ }, {
+ .fourcc = V4L2_PIX_FMT_RGB24,
+ .bytes_per_pixel = 3,
+ }, {
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .bytes_per_pixel = 3,
+ }, {
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .bytes_per_pixel = 2,
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_BGR32,
+ .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 ||
+ fmt->fourcc == V4L2_PIX_FMT_NV16)
+ f->fmt.pix.sizeimage *= 2;
+
+ switch (f->fmt.pix.pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_YVU420:
+ case V4L2_PIX_FMT_YUV422P:
+ case V4L2_PIX_FMT_NV12:
+ case V4L2_PIX_FMT_NV16:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_YUYV:
+ if (f->fmt.pix.width <= 720 && f->fmt.pix.height <= 576)
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ else
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_RGB565:
+ case V4L2_PIX_FMT_BGR32:
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ 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];
+
+ 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];
+
+ 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];
+ }
+
+ 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 = f->fmt.pix;
+
+ 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 = *pix;
+
+ 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..7b344b6
--- /dev/null
+++ b/drivers/media/platform/imx/imx-ipu.h
@@ -0,0 +1,34 @@
+#ifndef __MEDIA_IMX_IPU_H
+#define __MEDIA_IMX_IPU_H
+#include <linux/videodev2.h>
+
+struct ipu_fmt {
+ u32 fourcc;
+ 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 */
--
2.9.3
next prev parent reply other threads:[~2016-10-14 17:34 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-14 17:34 [PATCH v2 00/21] Basic i.MX IPUv3 capture support Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 01/21] [media] v4l2-async: move code out of v4l2_async_notifier_register into v4l2_async_test_nofity_all Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 02/21] [media] v4l2-async: allow subdevices to add further subdevices to the notifier waiting list Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 03/21] [media] v4l: of: add v4l2_of_subdev_registered Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 04/21] [media] v4l2-async: add new subdevices to the tail of subdev_list Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 05/21] [media] imx: Add i.MX SoC wide media device driver Philipp Zabel
2016-10-14 17:34 ` Philipp Zabel [this message]
2016-10-14 17:34 ` [PATCH v2 07/21] [media] imx-ipu: Add i.MX IPUv3 CSI subdevice driver Philipp Zabel
2016-11-08 7:18 ` Ying Liu
2016-10-14 17:34 ` [PATCH v2 08/21] [media] imx: Add i.MX IPUv3 capture driver Philipp Zabel
2016-10-17 11:32 ` Jack Mitchell
2016-10-17 11:35 ` Marek Vasut
2016-10-17 11:40 ` Jack Mitchell
2016-10-17 12:12 ` Philipp Zabel
2016-10-19 16:22 ` Jack Mitchell
2016-10-19 19:25 ` Marek Vasut
2016-10-26 11:29 ` Jack Mitchell
2016-11-08 7:21 ` Ying Liu
2016-10-14 17:34 ` [PATCH v2 09/21] [media] platform: add video-multiplexer subdevice driver Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 10/21] [media] imx: Add i.MX MIPI CSI-2 " Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 11/21] [media] tc358743: put lanes in STOP state before starting streaming Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 12/21] ARM: dts: imx6qdl: Add capture-subsystem node Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 13/21] ARM: dts: imx6qdl: Add mipi_ipu1/2 multiplexers, mipi_csi, and their connections Philipp Zabel
2016-11-08 8:23 ` Ying Liu
2016-10-14 17:34 ` [PATCH v2 14/21] ARM: dts: imx6qdl: Add MIPI CSI-2 D-PHY compatible and clocks Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 15/21] ARM: dts: nitrogen6x: Add dtsi for BD_HDMI_MIPI HDMI to MIPI CSI-2 receiver board Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 16/21] gpu: ipuv3: add ipu_csi_set_downsize Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 17/21] [media] imx-ipuv3-csi: support downsizing Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 18/21] [media] add mux and video interface bridge entity functions Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 19/21] [media] video-multiplexer: set entity function to mux Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 20/21] [media] imx: Set i.MX MIPI CSI-2 entity function to bridge Philipp Zabel
2016-10-14 17:34 ` [PATCH v2 21/21] [media] tc358743: set entity function to video interface bridge Philipp Zabel
2016-10-17 10:18 ` [PATCH v2 00/21] Basic i.MX IPUv3 capture support Gary Bisson
2016-10-17 12:41 ` Philipp Zabel
2016-10-19 21:30 ` Sakari Ailus
[not found] ` <CAH-u=807nRYzza0kTfOMv1AiWazk6FGJyz6W5_bYw7v9nOrccA@mail.gmail.com>
2016-12-29 15:10 ` Jean-Michel Hautbois
2016-12-29 20:51 ` Robert Schwebel
2016-12-30 19:06 ` Marek Vasut
2016-12-30 20:26 ` Steve Longerbeam
2017-01-02 13:51 ` Jean-Michel Hautbois
2017-01-02 14:45 ` Hans Verkuil
2017-01-02 14:59 ` Jean-Michel Hautbois
2017-01-02 19:19 ` Fabio Estevam
2017-01-02 19:20 ` Steve Longerbeam
2017-01-02 17:04 ` Fabio Estevam
2017-01-02 19:17 ` Steve Longerbeam
2017-01-09 19:43 ` Philipp Zabel
2017-01-10 0:15 ` Steve Longerbeam
2017-01-10 23:52 ` Steve Longerbeam
2017-01-11 9:12 ` Jean-Michel Hautbois
2017-01-11 12:10 ` Philipp Zabel
2017-01-12 23:22 ` Steve Longerbeam
2017-01-12 23:43 ` Steve Longerbeam
2017-01-13 2:22 ` Steve Longerbeam
2017-01-13 11:18 ` Philipp Zabel
2017-01-13 11:04 ` Philipp Zabel
2017-01-13 11:05 ` Philipp Zabel
2017-01-14 20:26 ` Steve Longerbeam
2017-01-16 11:49 ` Philipp Zabel
2017-01-11 12:11 ` Philipp Zabel
2017-01-24 18:11 ` Philipp Zabel
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