libdrm : add vigs api

Change-Id: Ie67c19bdb4a6f9e2190dbb4d3f825e878fca3635
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Jinhyung Jo <jinhyung.jo@samsung.com>
[sw0312.kim: remove direct config.h include]
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

vigs: Add meson build system

Change-Id: I263e91fece8336c6f530b49402e9e839519a855c
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>

packaging: Enable vigs

Change-Id: I06c54a9cca66f23aaad2c9142b0d6c839be8c8b2
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>

libdrm_vigs: Fence support added

VIGS kernel driver now supports fences, so
update libdrm to expose them to user space

Change-Id: I9c07084a357c0a8dc87c049e01238f9049ca0828
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>

libdrm_vigs: Scanout flag added to surfaces

Change-Id: Ib6f96d2542c3df0b78f7ef1b610bcc3fa0b678d6
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>

libdrm_vigs: Support plane z-pos setting

Change-Id: I2e1418425f1b4a17f49f19fabb8c4a2bdc84e5ef
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>

VIGS: Support DP memory

DP memory is used by some of the tizen
gstreamer plugins, TBM and X.Org video driver.
Its main purpose is to share GEM buffers between
media decoding and presentation layers

Change-Id: Ie377119b46d6033355bf6ce00adc01e36096742a
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>

VIGS: Implement plane flip/rotate

Planes can now be horizontally/vertically flipped
and rotated by 90, 180 or 270 degrees

Change-Id: I3db7dc3854add2b777e41aed54039a0d2323e0b1
Signed-off-by: Stanislav Vorobiov <s.vorobiov@samsung.com>
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

VIGS: add PRIME functions

Change-Id: I488c4529c1fb1f52aec9081cb6eb82c40d256dc3
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

VIGS: Add surface convert ioctl

Change-Id: Ic7fcb69be2a2fcc58363647278c0be62ac48766e
Signed-off-by: Vladislav Andresov <v.andresov@partner.samsung.com>

VIGS: fix always to check return of drmIoctl()

Fix to check return value of drmIoctl().

Change-Id: I0aae8953ebcb0b2b580638c1c730e2a4833df9f2
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

vigs: add drm_public macro to vigs api

For visibility, public api should have drm_public macro.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

 Conflicts:
	meson.build

Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>

9 files changed, 1615 insertions, 0 deletions

diff --git a/include/drm/vigs_drm.h b/include/drm/vigs_drm.h
new file mode 100644
index 00000000..5244e092
--- /dev/null
+++ b/include/drm/vigs_drm.h
@@ -0,0 +1,255 @@
+/*
+ * vigs_drm.h
+ */
+
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Authors:
+ * Stanislav Vorobiov <s.vorobiov@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _VIGS_DRM_H_
+#define _VIGS_DRM_H_
+
+/*
+ * Bump this whenever driver interface changes.
+ */
+#define DRM_VIGS_DRIVER_VERSION 14
+
+/*
+ * Surface access flags.
+ */
+#define DRM_VIGS_SAF_READ 1
+#define DRM_VIGS_SAF_WRITE 2
+#define DRM_VIGS_SAF_MASK 3
+
+/*
+ * Number of DP framebuffers.
+ */
+#define DRM_VIGS_NUM_DP_FB_BUF 4
+
+/*
+ * DP memory types.
+ */
+#define DRM_VIGS_DP_FB_Y 2
+#define DRM_VIGS_DP_FB_C 3
+
+struct drm_vigs_get_protocol_version
+{
+    uint32_t version;
+};
+
+struct drm_vigs_create_surface
+{
+    uint32_t width;
+    uint32_t height;
+    uint32_t stride;
+    uint32_t format;
+    int scanout;
+    uint32_t handle;
+    uint32_t size;
+    uint32_t id;
+};
+
+struct drm_vigs_create_execbuffer
+{
+    uint32_t size;
+    uint32_t handle;
+};
+
+struct drm_vigs_gem_map
+{
+    uint32_t handle;
+    int track_access;
+    unsigned long address;
+};
+
+struct drm_vigs_gem_wait
+{
+    uint32_t handle;
+};
+
+struct drm_vigs_surface_info
+{
+    uint32_t handle;
+    uint32_t width;
+    uint32_t height;
+    uint32_t stride;
+    uint32_t format;
+    int scanout;
+    uint32_t size;
+    uint32_t id;
+};
+
+struct drm_vigs_exec
+{
+    uint32_t handle;
+};
+
+struct drm_vigs_surface_set_gpu_dirty
+{
+    uint32_t handle;
+};
+
+struct drm_vigs_surface_start_access
+{
+    unsigned long address;
+    uint32_t saf;
+};
+
+struct drm_vigs_surface_end_access
+{
+    unsigned long address;
+    int sync;
+};
+
+struct drm_vigs_surface_convert
+{
+    uint32_t src_handle;
+    uint32_t src_format;
+    uint32_t dst_handle;
+    uint32_t dst_format;
+    int y_invert;
+};
+
+struct drm_vigs_create_fence
+{
+    int send;
+    uint32_t handle;
+    uint32_t seq;
+};
+
+struct drm_vigs_fence_wait
+{
+    uint32_t handle;
+};
+
+struct drm_vigs_fence_signaled
+{
+    uint32_t handle;
+    int signaled;
+};
+
+struct drm_vigs_fence_unref
+{
+    uint32_t handle;
+};
+
+struct drm_vigs_plane_set_zpos
+{
+    uint32_t plane_id;
+    int zpos;
+};
+
+struct drm_vigs_plane_set_transform
+{
+    uint32_t plane_id;
+    int hflip;
+    int vflip;
+    int rotation;
+};
+
+struct drm_vigs_dp_create_surface
+{
+    uint32_t dp_plane;
+    uint32_t dp_fb_buf;
+    uint32_t dp_mem_flag;
+    uint32_t width;
+    uint32_t height;
+    uint32_t stride;
+    uint32_t format;
+    uint32_t handle;
+    uint32_t size;
+    uint32_t id;
+};
+
+struct drm_vigs_dp_open_surface
+{
+    uint32_t dp_plane;
+    uint32_t dp_fb_buf;
+    uint32_t dp_mem_flag;
+    uint32_t handle;
+};
+
+#define DRM_VIGS_GET_PROTOCOL_VERSION 0x00
+#define DRM_VIGS_CREATE_SURFACE 0x01
+#define DRM_VIGS_CREATE_EXECBUFFER 0x02
+#define DRM_VIGS_GEM_MAP 0x03
+#define DRM_VIGS_GEM_WAIT 0x04
+#define DRM_VIGS_SURFACE_INFO 0x05
+#define DRM_VIGS_EXEC 0x06
+#define DRM_VIGS_SURFACE_SET_GPU_DIRTY 0x07
+#define DRM_VIGS_SURFACE_START_ACCESS 0x08
+#define DRM_VIGS_SURFACE_END_ACCESS 0x09
+#define DRM_VIGS_CREATE_FENCE 0x0A
+#define DRM_VIGS_FENCE_WAIT 0x0B
+#define DRM_VIGS_FENCE_SIGNALED 0x0C
+#define DRM_VIGS_FENCE_UNREF 0x0D
+#define DRM_VIGS_PLANE_SET_ZPOS 0x0E
+#define DRM_VIGS_PLANE_SET_TRANSFORM 0x0F
+
+#define DRM_VIGS_DP_CREATE_SURFACE 0x20
+#define DRM_VIGS_DP_OPEN_SURFACE 0x21
+
+#define DRM_VIGS_SURFACE_CONVERT 0x22
+
+#define DRM_IOCTL_VIGS_GET_PROTOCOL_VERSION DRM_IOR(DRM_COMMAND_BASE + \
+            DRM_VIGS_GET_PROTOCOL_VERSION, struct drm_vigs_get_protocol_version)
+#define DRM_IOCTL_VIGS_CREATE_SURFACE DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_CREATE_SURFACE, struct drm_vigs_create_surface)
+#define DRM_IOCTL_VIGS_CREATE_EXECBUFFER DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_CREATE_EXECBUFFER, struct drm_vigs_create_execbuffer)
+#define DRM_IOCTL_VIGS_GEM_MAP DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_GEM_MAP, struct drm_vigs_gem_map)
+#define DRM_IOCTL_VIGS_GEM_WAIT DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_GEM_WAIT, struct drm_vigs_gem_wait)
+#define DRM_IOCTL_VIGS_SURFACE_INFO DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_SURFACE_INFO, struct drm_vigs_surface_info)
+#define DRM_IOCTL_VIGS_EXEC DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_EXEC, struct drm_vigs_exec)
+#define DRM_IOCTL_VIGS_SURFACE_SET_GPU_DIRTY DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_SURFACE_SET_GPU_DIRTY, struct drm_vigs_surface_set_gpu_dirty)
+#define DRM_IOCTL_VIGS_SURFACE_START_ACCESS DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_SURFACE_START_ACCESS, struct drm_vigs_surface_start_access)
+#define DRM_IOCTL_VIGS_SURFACE_END_ACCESS DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_SURFACE_END_ACCESS, struct drm_vigs_surface_end_access)
+#define DRM_IOCTL_VIGS_SURFACE_CONVERT DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_SURFACE_CONVERT, struct drm_vigs_surface_convert)
+#define DRM_IOCTL_VIGS_CREATE_FENCE DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_CREATE_FENCE, struct drm_vigs_create_fence)
+#define DRM_IOCTL_VIGS_FENCE_WAIT DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_FENCE_WAIT, struct drm_vigs_fence_wait)
+#define DRM_IOCTL_VIGS_FENCE_SIGNALED DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_FENCE_SIGNALED, struct drm_vigs_fence_signaled)
+#define DRM_IOCTL_VIGS_FENCE_UNREF DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_FENCE_UNREF, struct drm_vigs_fence_unref)
+#define DRM_IOCTL_VIGS_PLANE_SET_ZPOS DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_PLANE_SET_ZPOS, struct drm_vigs_plane_set_zpos)
+#define DRM_IOCTL_VIGS_PLANE_SET_TRANSFORM DRM_IOW(DRM_COMMAND_BASE + \
+            DRM_VIGS_PLANE_SET_TRANSFORM, struct drm_vigs_plane_set_transform)
+
+#define DRM_IOCTL_VIGS_DP_CREATE_SURFACE DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_DP_CREATE_SURFACE, struct drm_vigs_dp_create_surface)
+#define DRM_IOCTL_VIGS_DP_OPEN_SURFACE DRM_IOWR(DRM_COMMAND_BASE + \
+            DRM_VIGS_DP_OPEN_SURFACE, struct drm_vigs_dp_open_surface)
+
+#endif
diff --git a/meson.build b/meson.build
index c0a7e4ca..26b2e5a4 100644
--- a/meson.build
+++ b/meson.build
@@ -141,6 +141,9 @@ with_vc4 = get_option('vc4') \
   .allowed()
 summary('VC4', with_vc4)
 
+with_vigs = get_option('vigs').enabled()
+summary('VIGS', with_vigs)
+
 # Among others FreeBSD does not have a separate dl library.
 if not cc.has_function('dlsym')
   dep_dl = cc.find_library('dl', required : with_nouveau)
@@ -211,6 +214,7 @@ config.set10('HAVE_VISIBILITY', cc.has_function_attribute('visibility:hidden'))
 
 foreach t : [
              [with_exynos, 'EXYNOS'],
+             [with_vigs, 'VIGS'],
              [with_freedreno_kgsl, 'FREEDRENO_KGSL'],
              [with_intel, 'INTEL'],
              [with_nouveau, 'NOUVEAU'],
@@ -326,6 +330,9 @@ endif
 if with_exynos
   subdir('exynos')
 endif
+if with_vigs
+  subdir('vigs')
+endif
 if with_freedreno
   subdir('freedreno')
 endif
diff --git a/meson_options.txt b/meson_options.txt
index e80d79e2..108d7e4b 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -56,6 +56,12 @@ option(
   description : '''Enable support for EXYNOS's experimental KMS API.''',
 )
 option(
+  'vigs',
+  type : 'feature',
+  value : 'disabled',
+  description : '''Enable support for VIGS's experimental KMS API.''',
+)
+option(
   'freedreno',
   type : 'feature',
   description : '''Enable support for freedreno's KMS API.''',
diff --git a/packaging/libdrm.spec b/packaging/libdrm.spec
index 29478d6e..6bf36760 100644
--- a/packaging/libdrm.spec
+++ b/packaging/libdrm.spec
@@ -67,6 +67,7 @@ meson setup --prefix /usr --libdir %{_libdir} \
        -Dintel=enabled \
 %endif
        -Dexynos=enabled \
+       -Dvigs=enabled \
        -Dinstall-test-programs=true \
        -Dcairo-tests=disabled \
        -Db_pie=true \
@@ -91,6 +92,7 @@ ninja -C builddir install
 %license COPYING
 %{_libdir}/libdrm.so.*
 %{_libdir}/libdrm_exynos.so.*
+%{_libdir}/libdrm_vigs.so.*
 
 %files tools
 %manifest %{name}.manifest
@@ -124,6 +126,8 @@ ninja -C builddir install
 %endif
 %{_libdir}/libdrm_exynos.so
 %{_libdir}/pkgconfig/libdrm_exynos.pc
+%{_libdir}/libdrm_vigs.so
+%{_libdir}/pkgconfig/libdrm_vigs.pc
 
 %ifarch i586 i686 %ix86 x86_64
 %files intel
diff --git a/vigs/libdrm_vigs.pc.in b/vigs/libdrm_vigs.pc.in
new file mode 100644
index 00000000..8b00a76f
--- /dev/null
+++ b/vigs/libdrm_vigs.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_vigs
+Description: Userspace interface to VIGS kernel DRM services
+Version: 10.0.0
+Libs: -L${libdir} -ldrm_vigs
+Cflags: -I${includedir} -I${includedir}/libdrm
+Requires.private: libdrm
diff --git a/vigs/meson.build b/vigs/meson.build
new file mode 100644
index 00000000..a0a2138b
--- /dev/null
+++ b/vigs/meson.build
@@ -0,0 +1,56 @@
+# Copyright © 2017-2018 Intel Corporation
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+libdrm_vigs = shared_library(
+  'drm_vigs',
+  [files('vigs.c'), config_file],
+  c_args : libdrm_c_args,
+  include_directories : [inc_root, inc_drm],
+  link_with : libdrm,
+  dependencies : [dep_threads],
+  version : '10.0.0',
+  install : true,
+)
+
+install_headers('vigs.h', subdir : 'libdrm')
+
+ext_libdrm_vigs = declare_dependency(
+  link_with : [libdrm, libdrm_vigs],
+  include_directories : [inc_drm, include_directories('.')],
+)
+
+pkg.generate(
+  name : 'libdrm_vigs',
+  libraries : libdrm_vigs,
+  subdirs : ['.', 'libdrm'],
+  version : '10.0.0',
+  requires_private : 'libdrm',
+  description : 'Userspace interface to vigs kernel DRM services',
+)
+
+test(
+  'vigs-symbols-check',
+  symbols_check,
+  args : [
+    '--lib', libdrm_vigs,
+    '--symbols-file', files('vigs-symbols.txt'),
+    '--nm', prog_nm.path(),
+  ],
+)
diff --git a/vigs/vigs-symbols.txt b/vigs/vigs-symbols.txt
new file mode 100644
index 00000000..4de7971d
--- /dev/null
+++ b/vigs/vigs-symbols.txt
@@ -0,0 +1,29 @@
+vigs_drm_device_create
+vigs_drm_device_destroy
+vigs_drm_device_get_protocol_version
+vigs_drm_gem_ref
+vigs_drm_gem_unref
+vigs_drm_gem_get_name
+vigs_drm_gem_map
+vigs_drm_gem_unmap
+vigs_drm_gem_wait
+vigs_drm_surface_create
+vigs_drm_surface_open
+vigs_drm_surface_set_gpu_dirty
+vigs_drm_surface_start_access
+vigs_drm_surface_end_access
+vigs_drm_surface_convert
+vigs_drm_execbuffer_create
+vigs_drm_execbuffer_open
+vigs_drm_execbuffer_exec
+vigs_drm_fence_create
+vigs_drm_fence_ref
+vigs_drm_fence_unref
+vigs_drm_fence_wait
+vigs_drm_fence_check
+vigs_drm_plane_set_zpos
+vigs_drm_plane_set_transform
+vigs_drm_dp_surface_create
+vigs_drm_dp_surface_open
+vigs_drm_prime_export_fd
+vigs_drm_prime_import_fd
diff --git a/vigs/vigs.c b/vigs/vigs.c
new file mode 100644
index 00000000..e9eea005
--- /dev/null
+++ b/vigs/vigs.c
@@ -0,0 +1,931 @@
+/* vigs.c
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Authors:
+ * Stanislav Vorobiov <s.vorobiov@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <sys/mman.h>
+#include <linux/stddef.h>
+
+#include <xf86drm.h>
+#include <xf86atomic.h>
+
+#include "libdrm_macros.h"
+#include "vigs.h"
+#include "vigs_drm.h"
+
+#define vigs_offsetof(type, member) ((size_t)&((type*)0)->member)
+
+#define vigs_containerof(ptr, type, member) ((type*)((char*)(ptr) - vigs_offsetof(type, member)))
+
+struct vigs_drm_gem_info
+{
+    atomic_t ref_count;
+};
+
+struct vigs_drm_gem_impl
+{
+    struct vigs_drm_gem_info info;
+
+    struct vigs_drm_gem gem;
+};
+
+struct vigs_drm_surface_impl
+{
+    struct vigs_drm_gem_info gem_info;
+
+    struct vigs_drm_surface base;
+};
+
+struct vigs_drm_execbuffer_impl
+{
+    struct vigs_drm_gem_info gem_info;
+
+    struct vigs_drm_execbuffer base;
+};
+
+struct vigs_drm_fence_impl
+{
+    struct vigs_drm_fence base;
+
+    atomic_t ref_count;
+};
+
+static void vigs_drm_gem_close(struct vigs_drm_device *dev, uint32_t handle)
+{
+    struct drm_gem_close req =
+    {
+        .handle = handle,
+    };
+    int ret;
+
+    if (handle) {
+        ret = drmIoctl(dev->fd, DRM_IOCTL_GEM_CLOSE, &req);
+        if (ret) {
+            fprintf(stderr, "DRM_IOCTL_GEM_CLOSE %d failed(%d)\n", handle, ret);
+        }
+    }
+}
+
+static void vigs_drm_gem_impl_init(struct vigs_drm_gem_impl *gem_impl,
+                                   struct vigs_drm_device *dev,
+                                   uint32_t handle,
+                                   uint32_t size,
+                                   uint32_t name)
+{
+    atomic_set(&gem_impl->info.ref_count, 1);
+    gem_impl->gem.dev = dev;
+    gem_impl->gem.size = size;
+    gem_impl->gem.handle = handle;
+    gem_impl->gem.name = name;
+}
+
+drm_public int vigs_drm_device_create(int fd, struct vigs_drm_device **dev)
+{
+    drmVersionPtr version;
+    uint32_t major;
+    int ret;
+
+    *dev = calloc(sizeof(**dev), 1);
+
+    if (!*dev) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    version = drmGetVersion(fd);
+
+    if (!version) {
+        ret = -EINVAL;
+        goto fail2;
+    }
+
+    major = version->version_major;
+
+    drmFreeVersion(version);
+
+    if (major != DRM_VIGS_DRIVER_VERSION) {
+        ret = -EINVAL;
+        goto fail2;
+    }
+
+    (*dev)->fd = fd;
+
+    return 0;
+
+fail2:
+    free(*dev);
+fail1:
+    *dev = NULL;
+
+    return ret;
+}
+
+drm_public void vigs_drm_device_destroy(struct vigs_drm_device *dev)
+{
+    free(dev);
+}
+
+drm_public int vigs_drm_device_get_protocol_version(struct vigs_drm_device *dev,
+						    uint32_t *protocol_version)
+{
+    struct drm_vigs_get_protocol_version req;
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_GET_PROTOCOL_VERSION, &req);
+
+    if (ret != 0) {
+        return -errno;
+    }
+
+    if (protocol_version) {
+        *protocol_version = req.version;
+    }
+
+    return 0;
+}
+
+drm_public void vigs_drm_gem_ref(struct vigs_drm_gem *gem)
+{
+    struct vigs_drm_gem_impl *gem_impl;
+
+    if (!gem) {
+        return;
+    }
+
+    gem_impl = vigs_containerof(gem, struct vigs_drm_gem_impl, gem);
+
+    atomic_inc(&gem_impl->info.ref_count);
+}
+
+drm_public void vigs_drm_gem_unref(struct vigs_drm_gem *gem)
+{
+    struct vigs_drm_gem_impl *gem_impl;
+
+    if (!gem) {
+        return;
+    }
+
+    gem_impl = vigs_containerof(gem, struct vigs_drm_gem_impl, gem);
+
+    assert(atomic_read(&gem_impl->info.ref_count) > 0);
+    if (!atomic_dec_and_test(&gem_impl->info.ref_count)) {
+        return;
+    }
+
+    if (gem->vaddr) {
+        munmap(gem->vaddr, gem->size);
+    }
+
+    vigs_drm_gem_close(gem->dev, gem->handle);
+
+    free(gem_impl);
+}
+
+drm_public int vigs_drm_gem_get_name(struct vigs_drm_gem *gem)
+{
+    struct drm_gem_flink req =
+    {
+        .handle = gem->handle,
+    };
+    int ret;
+
+    if (gem->name) {
+        return 0;
+    }
+
+    ret = drmIoctl(gem->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
+
+    if (ret != 0) {
+        return -errno;
+    }
+
+    gem->name = req.name;
+
+    return 0;
+}
+
+drm_public int vigs_drm_gem_map(struct vigs_drm_gem *gem, int track_access)
+{
+    struct drm_vigs_gem_map req =
+    {
+        .handle = gem->handle,
+        .track_access = track_access
+    };
+    int ret;
+
+    if (gem->vaddr) {
+        return 0;
+    }
+
+    ret = drmIoctl(gem->dev->fd, DRM_IOCTL_VIGS_GEM_MAP, &req);
+
+    if (ret != 0) {
+        return -errno;
+    }
+
+    gem->vaddr = (void*)req.address;
+
+    return 0;
+}
+
+drm_public void vigs_drm_gem_unmap(struct vigs_drm_gem *gem)
+{
+    if (!gem->vaddr) {
+        return;
+    }
+
+    munmap(gem->vaddr, gem->size);
+    gem->vaddr = NULL;
+}
+
+drm_public int vigs_drm_gem_wait(struct vigs_drm_gem *gem)
+{
+    struct drm_vigs_gem_wait req =
+    {
+        .handle = gem->handle,
+    };
+    int ret;
+
+    ret = drmIoctl(gem->dev->fd, DRM_IOCTL_VIGS_GEM_WAIT, &req);
+
+    if (ret != 0) {
+        return -errno;
+    }
+
+    return 0;
+}
+
+drm_public int vigs_drm_surface_create(struct vigs_drm_device *dev,
+				       uint32_t width,
+				       uint32_t height,
+				       uint32_t stride,
+				       uint32_t format,
+				       int scanout,
+				       struct vigs_drm_surface **sfc)
+{
+    struct vigs_drm_surface_impl *sfc_impl;
+    struct drm_vigs_create_surface req =
+    {
+        .width = width,
+        .height = height,
+        .stride = stride,
+        .format = format,
+        .scanout = scanout,
+    };
+    int ret;
+
+    sfc_impl = calloc(sizeof(*sfc_impl), 1);
+
+    if (!sfc_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_CREATE_SURFACE, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)sfc_impl,
+                           dev,
+                           req.handle,
+                           req.size,
+                           0);
+
+    sfc_impl->base.width = width;
+    sfc_impl->base.height = height;
+    sfc_impl->base.stride = stride;
+    sfc_impl->base.format = format;
+    sfc_impl->base.scanout = scanout;
+    sfc_impl->base.id = req.id;
+
+    *sfc = &sfc_impl->base;
+
+    return 0;
+
+fail2:
+    free(sfc_impl);
+fail1:
+    *sfc = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_surface_open(struct vigs_drm_device *dev,
+				     uint32_t name,
+				     struct vigs_drm_surface **sfc)
+{
+    struct vigs_drm_surface_impl *sfc_impl;
+    struct drm_gem_open req =
+    {
+        .name = name,
+    };
+    struct drm_vigs_surface_info info_req;
+    int ret;
+
+    sfc_impl = calloc(sizeof(*sfc_impl), 1);
+
+    if (!sfc_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    info_req.handle = req.handle;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_SURFACE_INFO, &info_req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail3;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)sfc_impl,
+                           dev,
+                           req.handle,
+                           info_req.size,
+                           name);
+
+    sfc_impl->base.width = info_req.width;
+    sfc_impl->base.height = info_req.height;
+    sfc_impl->base.stride = info_req.stride;
+    sfc_impl->base.format = info_req.format;
+    sfc_impl->base.scanout = info_req.scanout;
+    sfc_impl->base.id = info_req.id;
+
+    *sfc = &sfc_impl->base;
+
+    return 0;
+
+fail3:
+    vigs_drm_gem_close(dev, req.handle);
+fail2:
+    free(sfc_impl);
+fail1:
+    *sfc = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_surface_set_gpu_dirty(struct vigs_drm_surface *sfc)
+{
+    struct drm_vigs_surface_set_gpu_dirty req =
+    {
+        .handle = sfc->gem.handle
+    };
+    int ret;
+
+    ret = drmIoctl(sfc->gem.dev->fd, DRM_IOCTL_VIGS_SURFACE_SET_GPU_DIRTY, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_surface_start_access(struct vigs_drm_surface *sfc,
+					     uint32_t saf)
+{
+    struct drm_vigs_surface_start_access req =
+    {
+        .address = (unsigned long)sfc->gem.vaddr,
+        .saf = saf
+    };
+    int ret;
+
+    ret = drmIoctl(sfc->gem.dev->fd, DRM_IOCTL_VIGS_SURFACE_START_ACCESS, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_surface_end_access(struct vigs_drm_surface *sfc,
+					   int sync)
+{
+    struct drm_vigs_surface_end_access req =
+    {
+        .address = (unsigned long)sfc->gem.vaddr,
+        .sync = sync
+    };
+    int ret;
+
+    ret = drmIoctl(sfc->gem.dev->fd, DRM_IOCTL_VIGS_SURFACE_END_ACCESS, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_surface_convert(struct vigs_drm_surface *src,
+					uint32_t src_format,
+					struct vigs_drm_surface *dst,
+					uint32_t dst_format,
+					int y_invert)
+{
+    struct drm_vigs_surface_convert req =
+    {
+        .src_handle = src->gem.handle,
+        .src_format = src_format,
+        .dst_handle = dst->gem.handle,
+        .dst_format = dst_format,
+        .y_invert = y_invert
+    };
+    int ret;
+
+    ret = drmIoctl(dst->gem.dev->fd, DRM_IOCTL_VIGS_SURFACE_CONVERT, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_execbuffer_create(struct vigs_drm_device *dev,
+					  uint32_t size,
+					  struct vigs_drm_execbuffer **execbuffer)
+{
+    struct vigs_drm_execbuffer_impl *execbuffer_impl;
+    struct drm_vigs_create_execbuffer req =
+    {
+        .size = size
+    };
+    int ret;
+
+    execbuffer_impl = calloc(sizeof(*execbuffer_impl), 1);
+
+    if (!execbuffer_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_CREATE_EXECBUFFER, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)execbuffer_impl,
+                           dev,
+                           req.handle,
+                           req.size,
+                           0);
+
+    *execbuffer = &execbuffer_impl->base;
+
+    return 0;
+
+fail2:
+    free(execbuffer_impl);
+fail1:
+    *execbuffer = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_execbuffer_open(struct vigs_drm_device *dev,
+					uint32_t name,
+					struct vigs_drm_execbuffer **execbuffer)
+{
+    struct vigs_drm_execbuffer_impl *execbuffer_impl;
+    struct drm_gem_open req =
+    {
+        .name = name,
+    };
+    int ret;
+
+    execbuffer_impl = calloc(sizeof(*execbuffer_impl), 1);
+
+    if (!execbuffer_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)execbuffer_impl,
+                           dev,
+                           req.handle,
+                           req.size,
+                           name);
+
+    *execbuffer = &execbuffer_impl->base;
+
+    return 0;
+
+fail2:
+    free(execbuffer_impl);
+fail1:
+    *execbuffer = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_execbuffer_exec(struct vigs_drm_execbuffer *execbuffer)
+{
+    struct drm_vigs_exec req =
+    {
+        .handle = execbuffer->gem.handle
+    };
+    int ret;
+
+    ret = drmIoctl(execbuffer->gem.dev->fd, DRM_IOCTL_VIGS_EXEC, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_fence_create(struct vigs_drm_device *dev,
+                          int send,
+                          struct vigs_drm_fence **fence)
+{
+    struct vigs_drm_fence_impl *fence_impl;
+    struct drm_vigs_create_fence req =
+    {
+        .send = send
+    };
+    int ret;
+
+    fence_impl = calloc(sizeof(*fence_impl), 1);
+
+    if (!fence_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_CREATE_FENCE, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    atomic_set(&fence_impl->ref_count, 1);
+    fence_impl->base.dev = dev;
+    fence_impl->base.handle = req.handle;
+    fence_impl->base.seq = req.seq;
+    fence_impl->base.signaled = 0;
+
+    *fence = &fence_impl->base;
+
+    return 0;
+
+fail2:
+    free(fence_impl);
+fail1:
+    *fence = NULL;
+
+    return ret;
+}
+
+drm_public void vigs_drm_fence_ref(struct vigs_drm_fence *fence)
+{
+    struct vigs_drm_fence_impl *fence_impl;
+
+    if (!fence) {
+        return;
+    }
+
+    fence_impl = vigs_containerof(fence, struct vigs_drm_fence_impl, base);
+
+    atomic_inc(&fence_impl->ref_count);
+}
+
+drm_public void vigs_drm_fence_unref(struct vigs_drm_fence *fence)
+{
+    struct vigs_drm_fence_impl *fence_impl;
+    struct drm_vigs_fence_unref req;
+    int ret;
+
+    if (!fence) {
+        return;
+    }
+
+    fence_impl = vigs_containerof(fence, struct vigs_drm_fence_impl, base);
+
+    assert(atomic_read(&fence_impl->ref_count) > 0);
+    if (!atomic_dec_and_test(&fence_impl->ref_count)) {
+        return;
+    }
+
+    req.handle = fence->handle;
+
+    ret = drmIoctl(fence->dev->fd, DRM_IOCTL_VIGS_FENCE_UNREF, &req);
+    if (ret)
+        fprintf(stderr, "DRM_IOCTL_VIGS_FENCE_UNREF failed(%d)\n", ret);
+
+    free(fence_impl);
+}
+
+drm_public int vigs_drm_fence_wait(struct vigs_drm_fence *fence)
+{
+    struct drm_vigs_fence_wait req =
+    {
+        .handle = fence->handle
+    };
+    int ret;
+
+    ret = drmIoctl(fence->dev->fd, DRM_IOCTL_VIGS_FENCE_WAIT, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_fence_check(struct vigs_drm_fence *fence)
+{
+    struct drm_vigs_fence_signaled req =
+    {
+        .handle = fence->handle
+    };
+    int ret;
+
+    if (fence->signaled) {
+        return 0;
+    }
+
+    ret = drmIoctl(fence->dev->fd, DRM_IOCTL_VIGS_FENCE_SIGNALED, &req);
+
+    if (ret != 0) {
+        return -errno;
+    }
+
+    fence->signaled = req.signaled;
+
+    return 0;
+}
+
+drm_public int vigs_drm_plane_set_zpos(struct vigs_drm_device *dev,
+				       uint32_t plane_id,
+				       int zpos)
+{
+    struct drm_vigs_plane_set_zpos req =
+    {
+        .plane_id = plane_id,
+        .zpos = zpos
+    };
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_PLANE_SET_ZPOS, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_plane_set_transform(struct vigs_drm_device *dev,
+					    uint32_t plane_id,
+					    int hflip,
+					    int vflip,
+					    vigs_drm_rotation rotation)
+{
+    struct drm_vigs_plane_set_transform req =
+    {
+        .plane_id = plane_id,
+        .hflip = hflip,
+        .vflip = vflip,
+        .rotation = rotation
+    };
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_PLANE_SET_TRANSFORM, &req);
+
+    return (ret != 0) ? -errno : 0;
+}
+
+drm_public int vigs_drm_dp_surface_create(struct vigs_drm_device *dev,
+					  uint32_t dp_plane,
+					  uint32_t dp_fb_buf,
+					  uint32_t dp_mem_flag,
+					  uint32_t width,
+					  uint32_t height,
+					  uint32_t stride,
+					  uint32_t format,
+					  struct vigs_drm_surface **sfc)
+{
+    struct vigs_drm_surface_impl *sfc_impl;
+    struct drm_vigs_dp_create_surface req =
+    {
+        .dp_plane = dp_plane,
+        .dp_fb_buf = dp_fb_buf,
+        .dp_mem_flag = dp_mem_flag,
+        .width = width,
+        .height = height,
+        .stride = stride,
+        .format = format,
+    };
+    int ret;
+
+    sfc_impl = calloc(sizeof(*sfc_impl), 1);
+
+    if (!sfc_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_DP_CREATE_SURFACE, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)sfc_impl,
+                           dev,
+                           req.handle,
+                           req.size,
+                           0);
+
+    sfc_impl->base.width = width;
+    sfc_impl->base.height = height;
+    sfc_impl->base.stride = stride;
+    sfc_impl->base.format = format;
+    sfc_impl->base.scanout = 0;
+    sfc_impl->base.id = req.id;
+
+    *sfc = &sfc_impl->base;
+
+    return 0;
+
+fail2:
+    free(sfc_impl);
+fail1:
+    *sfc = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_dp_surface_open(struct vigs_drm_device *dev,
+					uint32_t dp_plane,
+					uint32_t dp_fb_buf,
+					uint32_t dp_mem_flag,
+					struct vigs_drm_surface **sfc)
+{
+    struct vigs_drm_surface_impl *sfc_impl;
+    struct drm_vigs_dp_open_surface req =
+    {
+        .dp_plane = dp_plane,
+        .dp_fb_buf = dp_fb_buf,
+        .dp_mem_flag = dp_mem_flag
+    };
+    struct drm_vigs_surface_info info_req;
+    int ret;
+
+    sfc_impl = calloc(sizeof(*sfc_impl), 1);
+
+    if (!sfc_impl) {
+        ret = -ENOMEM;
+        goto fail1;
+    }
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_DP_OPEN_SURFACE, &req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail2;
+    }
+
+    info_req.handle = req.handle;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_SURFACE_INFO, &info_req);
+
+    if (ret != 0) {
+        ret = -errno;
+        goto fail3;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)sfc_impl,
+                           dev,
+                           req.handle,
+                           info_req.size,
+                           0);
+
+    sfc_impl->base.width = info_req.width;
+    sfc_impl->base.height = info_req.height;
+    sfc_impl->base.stride = info_req.stride;
+    sfc_impl->base.format = info_req.format;
+    sfc_impl->base.scanout = info_req.scanout;
+    sfc_impl->base.id = info_req.id;
+
+    *sfc = &sfc_impl->base;
+
+    return 0;
+
+fail3:
+    vigs_drm_gem_close(dev, req.handle);
+fail2:
+    free(sfc_impl);
+fail1:
+    *sfc = NULL;
+
+    return ret;
+}
+
+drm_public int vigs_drm_prime_export_fd(struct vigs_drm_device *dev,
+					struct vigs_drm_surface *sfc,
+					int *prime_fd)
+{
+    struct drm_prime_handle req = {
+        .handle = sfc->gem.handle,
+        .flags = DRM_CLOEXEC,
+    };
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
+
+    if (ret) {
+        ret = -errno;
+        goto fail;
+    }
+
+    *prime_fd = req.fd;
+
+fail:
+    return ret;
+}
+
+drm_public int vigs_drm_prime_import_fd(struct vigs_drm_device *dev,
+					int prime_fd,
+					struct vigs_drm_surface **sfc)
+{
+    struct vigs_drm_surface_impl *sfc_impl;
+    struct drm_vigs_surface_info info_req;
+    struct drm_prime_handle req = {
+        .fd = prime_fd,
+    };
+    int ret;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
+
+    if (ret) {
+        ret = -errno;
+        goto err;
+    }
+
+    sfc_impl = calloc(sizeof(*sfc_impl), 1);
+
+    if (!sfc_impl) {
+        ret = -ENOMEM;
+        goto err;
+    }
+
+    memset(&info_req, 0, sizeof(info_req));
+    info_req.handle = req.handle;
+
+    ret = drmIoctl(dev->fd, DRM_IOCTL_VIGS_SURFACE_INFO, &info_req);
+
+    if (ret) {
+        ret = -errno;
+        goto err_free_sfc_impl;
+    }
+
+    vigs_drm_gem_impl_init((struct vigs_drm_gem_impl*)sfc_impl,
+                           dev,
+                           req.handle,
+                           info_req.size,
+                           0 /* name */);
+
+    sfc_impl->base.width = info_req.width;
+    sfc_impl->base.height = info_req.height;
+    sfc_impl->base.stride = info_req.stride;
+    sfc_impl->base.format = info_req.format;
+    sfc_impl->base.scanout = info_req.scanout;
+    sfc_impl->base.id = info_req.id;
+
+    *sfc = &sfc_impl->base;
+
+    return 0;
+
+err_free_sfc_impl:
+    free(sfc_impl);
+
+err:
+    return ret;
+}
diff --git a/vigs/vigs.h b/vigs/vigs.h
new file mode 100644
index 00000000..4880557c
--- /dev/null
+++ b/vigs/vigs.h
@@ -0,0 +1,316 @@
+/* vigs.h
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Authors:
+ * Stanislav Vorobiov <s.vorobiov@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __VIGS_H__
+#define __VIGS_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Surface formats.
+ */
+typedef enum
+{
+    vigs_drm_surface_bgrx8888 = 0x0,
+    vigs_drm_surface_bgra8888 = 0x1,
+} vigs_drm_surface_format;
+
+/*
+ * Rotations.
+ */
+typedef enum
+{
+    vigs_drm_rotation_0   = 0x0,
+    vigs_drm_rotation_90  = 0x1,
+    vigs_drm_rotation_180 = 0x2,
+    vigs_drm_rotation_270 = 0x3,
+} vigs_drm_rotation;
+
+/*
+ * Surface access flags.
+ */
+#define VIGS_DRM_SAF_READ 1
+#define VIGS_DRM_SAF_WRITE 2
+
+struct vigs_drm_device
+{
+    /* DRM fd. */
+    int fd;
+};
+
+struct vigs_drm_gem
+{
+    /* VIGS device object. */
+    struct vigs_drm_device *dev;
+
+    /* size of the buffer created. */
+    uint32_t size;
+
+    /* a gem handle to gem object created. */
+    uint32_t handle;
+
+    /* a gem global handle from flink request. initially 0. */
+    uint32_t name;
+
+    /* user space address to a gem buffer mmaped. initially NULL. */
+    void *vaddr;
+};
+
+struct vigs_drm_surface
+{
+    struct vigs_drm_gem gem;
+
+    uint32_t width;
+    uint32_t height;
+    uint32_t stride;
+    uint32_t format;
+    int scanout;
+    uint32_t id;
+};
+
+struct vigs_drm_execbuffer
+{
+    struct vigs_drm_gem gem;
+};
+
+struct vigs_drm_fence
+{
+    /* VIGS device object. */
+    struct vigs_drm_device *dev;
+
+    /* a handle to fence object. */
+    uint32_t handle;
+
+    /* fence sequence number. */
+    uint32_t seq;
+
+    /* is fence signaled ? updated on 'vigs_drm_fence_check'. */
+    int signaled;
+};
+
+/*
+ * All functions return 0 on success and < 0 on error, i.e. kernel style:
+ * return -ENOMEM;
+ */
+
+/*
+ * Device functions.
+ * @{
+ */
+
+/*
+ * Returns -EINVAL on driver version mismatch.
+ */
+int vigs_drm_device_create(int fd, struct vigs_drm_device **dev);
+
+void vigs_drm_device_destroy(struct vigs_drm_device *dev);
+
+int vigs_drm_device_get_protocol_version(struct vigs_drm_device *dev,
+                                         uint32_t *protocol_version);
+
+/*
+ * @}
+ */
+
+/*
+ * GEM functions.
+ * @{
+ */
+
+/*
+ * Passing NULL won't hurt, this is for convenience.
+ */
+void vigs_drm_gem_ref(struct vigs_drm_gem *gem);
+
+/*
+ * Passing NULL won't hurt, this is for convenience.
+ */
+void vigs_drm_gem_unref(struct vigs_drm_gem *gem);
+
+int vigs_drm_gem_get_name(struct vigs_drm_gem *gem);
+
+int vigs_drm_gem_map(struct vigs_drm_gem *gem, int track_access);
+
+void vigs_drm_gem_unmap(struct vigs_drm_gem *gem);
+
+int vigs_drm_gem_wait(struct vigs_drm_gem *gem);
+
+/*
+ * @}
+ */
+
+/*
+ * Surface functions.
+ * @{
+ */
+
+int vigs_drm_surface_create(struct vigs_drm_device *dev,
+                            uint32_t width,
+                            uint32_t height,
+                            uint32_t stride,
+                            uint32_t format,
+                            int scanout,
+                            struct vigs_drm_surface **sfc);
+
+int vigs_drm_surface_open(struct vigs_drm_device *dev,
+                          uint32_t name,
+                          struct vigs_drm_surface **sfc);
+
+int vigs_drm_surface_set_gpu_dirty(struct vigs_drm_surface *sfc);
+
+int vigs_drm_surface_start_access(struct vigs_drm_surface *sfc,
+                                  uint32_t saf);
+
+int vigs_drm_surface_end_access(struct vigs_drm_surface *sfc,
+                                int sync);
+
+int vigs_drm_surface_convert(struct vigs_drm_surface *src,
+                             uint32_t src_format,
+                             struct vigs_drm_surface *dst,
+                             uint32_t dst_format,
+                             int y_invert);
+
+/*
+ * @}
+ */
+
+/*
+ * Execbuffer functions.
+ * @{
+ */
+
+int vigs_drm_execbuffer_create(struct vigs_drm_device *dev,
+                               uint32_t size,
+                               struct vigs_drm_execbuffer **execbuffer);
+
+int vigs_drm_execbuffer_open(struct vigs_drm_device *dev,
+                             uint32_t name,
+                             struct vigs_drm_execbuffer **execbuffer);
+
+int vigs_drm_execbuffer_exec(struct vigs_drm_execbuffer *execbuffer);
+
+/*
+ * @}
+ */
+
+/*
+ * Fence functions.
+ * @{
+ */
+
+int vigs_drm_fence_create(struct vigs_drm_device *dev,
+                          int send,
+                          struct vigs_drm_fence **fence);
+
+/*
+ * Passing NULL won't hurt, this is for convenience.
+ */
+void vigs_drm_fence_ref(struct vigs_drm_fence *fence);
+
+/*
+ * Passing NULL won't hurt, this is for convenience.
+ */
+void vigs_drm_fence_unref(struct vigs_drm_fence *fence);
+
+int vigs_drm_fence_wait(struct vigs_drm_fence *fence);
+
+int vigs_drm_fence_check(struct vigs_drm_fence *fence);
+
+/*
+ * @}
+ */
+
+/*
+ * Plane functions.
+ * @{
+ */
+
+int vigs_drm_plane_set_zpos(struct vigs_drm_device *dev,
+                            uint32_t plane_id,
+                            int zpos);
+
+int vigs_drm_plane_set_transform(struct vigs_drm_device *dev,
+                                 uint32_t plane_id,
+                                 int hflip,
+                                 int vflip,
+                                 vigs_drm_rotation rotation);
+
+/*
+ * @}
+ */
+
+/*
+ * DP functions.
+ * @{
+ */
+
+int vigs_drm_dp_surface_create(struct vigs_drm_device *dev,
+                               uint32_t dp_plane,
+                               uint32_t dp_fb_buf,
+                               uint32_t dp_mem_flag,
+                               uint32_t width,
+                               uint32_t height,
+                               uint32_t stride,
+                               uint32_t format,
+                               struct vigs_drm_surface **sfc);
+
+int vigs_drm_dp_surface_open(struct vigs_drm_device *dev,
+                             uint32_t dp_plane,
+                             uint32_t dp_fb_buf,
+                             uint32_t dp_mem_flag,
+                             struct vigs_drm_surface **sfc);
+
+/*
+ * @}
+ */
+
+/*
+ * PRIME functions.
+ * @{
+ */
+
+int vigs_drm_prime_export_fd(struct vigs_drm_device *dev,
+                             struct vigs_drm_surface *sfc,
+                             int *prime_fd);
+
+int vigs_drm_prime_import_fd(struct vigs_drm_device *dev,
+                             int prime_fd,
+                             struct vigs_drm_surface **sfc);
+
+/*
+ * @}
+ */
+
+#ifdef __cplusplus
+};
+#endif /* __cplusplus */
+
+#endif