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-rw-r--r--omap/Android.mk13
-rw-r--r--omap/libdrm_omap.pc.in11
-rw-r--r--omap/meson.build61
-rw-r--r--omap/omap-symbols.txt18
-rw-r--r--omap/omap_drm.c468
-rw-r--r--omap/omap_drm.h135
-rw-r--r--omap/omap_drmif.h65
7 files changed, 771 insertions, 0 deletions
diff --git a/omap/Android.mk b/omap/Android.mk
new file mode 100644
index 0000000..b25cca1
--- /dev/null
+++ b/omap/Android.mk
@@ -0,0 +1,13 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libdrm_omap
+LOCAL_VENDOR_MODULE := true
+
+LOCAL_SRC_FILES := omap_drm.c
+
+LOCAL_SHARED_LIBRARIES := libdrm
+
+include $(LIBDRM_COMMON_MK)
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/omap/libdrm_omap.pc.in b/omap/libdrm_omap.pc.in
new file mode 100644
index 0000000..024533b
--- /dev/null
+++ b/omap/libdrm_omap.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libdrm_omap
+Description: Userspace interface to omap kernel DRM services
+Version: 0.6
+Libs: -L${libdir} -ldrm_omap
+Cflags: -I${includedir} -I${includedir}/libdrm -I${includedir}/omap
+Requires.private: libdrm
diff --git a/omap/meson.build b/omap/meson.build
new file mode 100644
index 0000000..eebd142
--- /dev/null
+++ b/omap/meson.build
@@ -0,0 +1,61 @@
+# Copyright © 2017 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_omap = library(
+ 'drm_omap',
+ [files('omap_drm.c'), config_file],
+ include_directories : [inc_root, inc_drm],
+ c_args : libdrm_c_args,
+ gnu_symbol_visibility : 'hidden',
+ link_with : libdrm,
+ dependencies : [dep_threads, dep_atomic_ops],
+ version : '1.0.0',
+ install : true,
+)
+
+ext_libdrm_omap = declare_dependency(
+ link_with : [libdrm, libdrm_omap],
+ include_directories : [inc_drm, include_directories('.')],
+)
+
+if meson.version().version_compare('>= 0.54.0')
+ meson.override_dependency('libdrm_omap', ext_libdrm_omap)
+endif
+
+install_headers('omap_drmif.h', subdir : 'libdrm')
+install_headers('omap_drm.h', subdir : 'omap')
+
+pkg.generate(
+ libdrm_omap,
+ name : 'libdrm_omap',
+ subdirs : ['.', 'libdrm', 'omap'],
+ version : '0.6',
+ description : 'Userspace interface to omap kernel DRM services',
+)
+
+test(
+ 'omap-symbols-check',
+ symbols_check,
+ args : [
+ '--lib', libdrm_omap,
+ '--symbols-file', files('omap-symbols.txt'),
+ '--nm', prog_nm.path(),
+ ],
+)
diff --git a/omap/omap-symbols.txt b/omap/omap-symbols.txt
new file mode 100644
index 0000000..749d0f7
--- /dev/null
+++ b/omap/omap-symbols.txt
@@ -0,0 +1,18 @@
+omap_bo_cpu_fini
+omap_bo_cpu_prep
+omap_bo_del
+omap_bo_dmabuf
+omap_bo_from_dmabuf
+omap_bo_from_name
+omap_bo_get_name
+omap_bo_handle
+omap_bo_map
+omap_bo_new
+omap_bo_new_tiled
+omap_bo_ref
+omap_bo_size
+omap_device_del
+omap_device_new
+omap_device_ref
+omap_get_param
+omap_set_param
diff --git a/omap/omap_drm.c b/omap/omap_drm.c
new file mode 100644
index 0000000..aa27366
--- /dev/null
+++ b/omap/omap_drm.c
@@ -0,0 +1,468 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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
+ * 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.
+ *
+ * Authors:
+ * Rob Clark <rob@ti.com>
+ */
+
+#include <stdlib.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include <libdrm_macros.h>
+#include <xf86drm.h>
+#include <xf86atomic.h>
+
+#include "omap_drm.h"
+#include "omap_drmif.h"
+
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#define PAGE_SIZE 4096
+
+static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER;
+static void * dev_table;
+
+struct omap_device {
+ int fd;
+ atomic_t refcnt;
+
+ /* The handle_table is used to track GEM bo handles associated w/
+ * this fd. This is needed, in particular, when importing
+ * dmabuf's because we don't want multiple 'struct omap_bo's
+ * floating around with the same handle. Otherwise, when the
+ * first one is omap_bo_del()'d the handle becomes no longer
+ * valid, and the remaining 'struct omap_bo's are left pointing
+ * to an invalid handle (and possible a GEM bo that is already
+ * free'd).
+ */
+ void *handle_table;
+};
+
+/* a GEM buffer object allocated from the DRM device */
+struct omap_bo {
+ struct omap_device *dev;
+ void *map; /* userspace mmap'ing (if there is one) */
+ uint32_t size;
+ uint32_t handle;
+ uint32_t name; /* flink global handle (DRI2 name) */
+ uint64_t offset; /* offset to mmap() */
+ int fd; /* dmabuf handle */
+ atomic_t refcnt;
+};
+
+static struct omap_device * omap_device_new_impl(int fd)
+{
+ struct omap_device *dev = calloc(sizeof(*dev), 1);
+ if (!dev)
+ return NULL;
+ dev->fd = fd;
+ atomic_set(&dev->refcnt, 1);
+ dev->handle_table = drmHashCreate();
+ return dev;
+}
+
+drm_public struct omap_device * omap_device_new(int fd)
+{
+ struct omap_device *dev = NULL;
+
+ pthread_mutex_lock(&table_lock);
+
+ if (!dev_table)
+ dev_table = drmHashCreate();
+
+ if (drmHashLookup(dev_table, fd, (void **)&dev)) {
+ /* not found, create new device */
+ dev = omap_device_new_impl(fd);
+ drmHashInsert(dev_table, fd, dev);
+ } else {
+ /* found, just incr refcnt */
+ dev = omap_device_ref(dev);
+ }
+
+ pthread_mutex_unlock(&table_lock);
+
+ return dev;
+}
+
+drm_public struct omap_device * omap_device_ref(struct omap_device *dev)
+{
+ atomic_inc(&dev->refcnt);
+ return dev;
+}
+
+drm_public void omap_device_del(struct omap_device *dev)
+{
+ if (!atomic_dec_and_test(&dev->refcnt))
+ return;
+ pthread_mutex_lock(&table_lock);
+ drmHashDestroy(dev->handle_table);
+ drmHashDelete(dev_table, dev->fd);
+ pthread_mutex_unlock(&table_lock);
+ free(dev);
+}
+
+drm_public int
+omap_get_param(struct omap_device *dev, uint64_t param, uint64_t *value)
+{
+ struct drm_omap_param req = {
+ .param = param,
+ };
+ int ret;
+
+ ret = drmCommandWriteRead(dev->fd, DRM_OMAP_GET_PARAM, &req, sizeof(req));
+ if (ret) {
+ return ret;
+ }
+
+ *value = req.value;
+
+ return 0;
+}
+
+drm_public int
+omap_set_param(struct omap_device *dev, uint64_t param, uint64_t value)
+{
+ struct drm_omap_param req = {
+ .param = param,
+ .value = value,
+ };
+ return drmCommandWrite(dev->fd, DRM_OMAP_SET_PARAM, &req, sizeof(req));
+}
+
+/* lookup a buffer from it's handle, call w/ table_lock held: */
+static struct omap_bo * lookup_bo(struct omap_device *dev,
+ uint32_t handle)
+{
+ struct omap_bo *bo = NULL;
+ if (!drmHashLookup(dev->handle_table, handle, (void **)&bo)) {
+ /* found, incr refcnt and return: */
+ bo = omap_bo_ref(bo);
+ }
+ return bo;
+}
+
+/* allocate a new buffer object, call w/ table_lock held */
+static struct omap_bo * bo_from_handle(struct omap_device *dev,
+ uint32_t handle)
+{
+ struct omap_bo *bo = calloc(sizeof(*bo), 1);
+ if (!bo) {
+ drmCloseBufferHandle(dev->fd, handle);
+ return NULL;
+ }
+ bo->dev = omap_device_ref(dev);
+ bo->handle = handle;
+ bo->fd = -1;
+ atomic_set(&bo->refcnt, 1);
+ /* add ourselves to the handle table: */
+ drmHashInsert(dev->handle_table, handle, bo);
+ return bo;
+}
+
+/* allocate a new buffer object */
+static struct omap_bo * omap_bo_new_impl(struct omap_device *dev,
+ union omap_gem_size size, uint32_t flags)
+{
+ struct omap_bo *bo = NULL;
+ struct drm_omap_gem_new req = {
+ .size = size,
+ .flags = flags,
+ };
+
+ if (size.bytes == 0) {
+ goto fail;
+ }
+
+ if (drmCommandWriteRead(dev->fd, DRM_OMAP_GEM_NEW, &req, sizeof(req))) {
+ goto fail;
+ }
+
+ pthread_mutex_lock(&table_lock);
+ bo = bo_from_handle(dev, req.handle);
+ pthread_mutex_unlock(&table_lock);
+
+ if (flags & OMAP_BO_TILED) {
+ bo->size = round_up(size.tiled.width, PAGE_SIZE) * size.tiled.height;
+ } else {
+ bo->size = size.bytes;
+ }
+
+ return bo;
+
+fail:
+ free(bo);
+ return NULL;
+}
+
+
+/* allocate a new (un-tiled) buffer object */
+drm_public struct omap_bo *
+omap_bo_new(struct omap_device *dev, uint32_t size, uint32_t flags)
+{
+ union omap_gem_size gsize = {
+ .bytes = size,
+ };
+ if (flags & OMAP_BO_TILED) {
+ return NULL;
+ }
+ return omap_bo_new_impl(dev, gsize, flags);
+}
+
+/* allocate a new buffer object */
+drm_public struct omap_bo *
+omap_bo_new_tiled(struct omap_device *dev, uint32_t width,
+ uint32_t height, uint32_t flags)
+{
+ union omap_gem_size gsize = {
+ .tiled = {
+ .width = width,
+ .height = height,
+ },
+ };
+ if (!(flags & OMAP_BO_TILED)) {
+ return NULL;
+ }
+ return omap_bo_new_impl(dev, gsize, flags);
+}
+
+drm_public struct omap_bo *omap_bo_ref(struct omap_bo *bo)
+{
+ atomic_inc(&bo->refcnt);
+ return bo;
+}
+
+/* get buffer info */
+static int get_buffer_info(struct omap_bo *bo)
+{
+ struct drm_omap_gem_info req = {
+ .handle = bo->handle,
+ };
+ int ret = drmCommandWriteRead(bo->dev->fd, DRM_OMAP_GEM_INFO,
+ &req, sizeof(req));
+ if (ret) {
+ return ret;
+ }
+
+ /* really all we need for now is mmap offset */
+ bo->offset = req.offset;
+ bo->size = req.size;
+
+ return 0;
+}
+
+/* import a buffer object from DRI2 name */
+drm_public struct omap_bo *
+omap_bo_from_name(struct omap_device *dev, uint32_t name)
+{
+ struct omap_bo *bo = NULL;
+ struct drm_gem_open req = {
+ .name = name,
+ };
+
+ pthread_mutex_lock(&table_lock);
+
+ if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) {
+ goto fail;
+ }
+
+ bo = lookup_bo(dev, req.handle);
+ if (!bo) {
+ bo = bo_from_handle(dev, req.handle);
+ bo->name = name;
+ }
+
+ pthread_mutex_unlock(&table_lock);
+
+ return bo;
+
+fail:
+ pthread_mutex_unlock(&table_lock);
+ free(bo);
+ return NULL;
+}
+
+/* import a buffer from dmabuf fd, does not take ownership of the
+ * fd so caller should close() the fd when it is otherwise done
+ * with it (even if it is still using the 'struct omap_bo *')
+ */
+drm_public struct omap_bo *
+omap_bo_from_dmabuf(struct omap_device *dev, int fd)
+{
+ struct omap_bo *bo = NULL;
+ struct drm_prime_handle req = {
+ .fd = fd,
+ };
+ int ret;
+
+ pthread_mutex_lock(&table_lock);
+
+ ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req);
+ if (ret) {
+ goto fail;
+ }
+
+ bo = lookup_bo(dev, req.handle);
+ if (!bo) {
+ bo = bo_from_handle(dev, req.handle);
+ }
+
+ pthread_mutex_unlock(&table_lock);
+
+ return bo;
+
+fail:
+ pthread_mutex_unlock(&table_lock);
+ free(bo);
+ return NULL;
+}
+
+/* destroy a buffer object */
+drm_public void omap_bo_del(struct omap_bo *bo)
+{
+ if (!bo) {
+ return;
+ }
+
+ if (!atomic_dec_and_test(&bo->refcnt))
+ return;
+
+ if (bo->map) {
+ munmap(bo->map, bo->size);
+ }
+
+ if (bo->fd >= 0) {
+ close(bo->fd);
+ }
+
+ if (bo->handle) {
+ pthread_mutex_lock(&table_lock);
+ drmHashDelete(bo->dev->handle_table, bo->handle);
+ drmCloseBufferHandle(bo->dev->fd, bo->handle);
+ pthread_mutex_unlock(&table_lock);
+ }
+
+ omap_device_del(bo->dev);
+
+ free(bo);
+}
+
+/* get the global flink/DRI2 buffer name */
+drm_public int omap_bo_get_name(struct omap_bo *bo, uint32_t *name)
+{
+ if (!bo->name) {
+ struct drm_gem_flink req = {
+ .handle = bo->handle,
+ };
+ int ret;
+
+ ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req);
+ if (ret) {
+ return ret;
+ }
+
+ bo->name = req.name;
+ }
+
+ *name = bo->name;
+
+ return 0;
+}
+
+drm_public uint32_t omap_bo_handle(struct omap_bo *bo)
+{
+ return bo->handle;
+}
+
+/* caller owns the dmabuf fd that is returned and is responsible
+ * to close() it when done
+ */
+drm_public int omap_bo_dmabuf(struct omap_bo *bo)
+{
+ if (bo->fd < 0) {
+ struct drm_prime_handle req = {
+ .handle = bo->handle,
+ .flags = DRM_CLOEXEC | DRM_RDWR,
+ };
+ int ret;
+
+ ret = drmIoctl(bo->dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req);
+ if (ret) {
+ return ret;
+ }
+
+ bo->fd = req.fd;
+ }
+ return dup(bo->fd);
+}
+
+drm_public uint32_t omap_bo_size(struct omap_bo *bo)
+{
+ if (!bo->size) {
+ get_buffer_info(bo);
+ }
+ return bo->size;
+}
+
+drm_public void *omap_bo_map(struct omap_bo *bo)
+{
+ if (!bo->map) {
+ if (!bo->offset) {
+ get_buffer_info(bo);
+ }
+
+ bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, bo->dev->fd, bo->offset);
+ if (bo->map == MAP_FAILED) {
+ bo->map = NULL;
+ }
+ }
+ return bo->map;
+}
+
+drm_public int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op)
+{
+ struct drm_omap_gem_cpu_prep req = {
+ .handle = bo->handle,
+ .op = op,
+ };
+ return drmCommandWrite(bo->dev->fd,
+ DRM_OMAP_GEM_CPU_PREP, &req, sizeof(req));
+}
+
+drm_public int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op)
+{
+ struct drm_omap_gem_cpu_fini req = {
+ .handle = bo->handle,
+ .op = op,
+ .nregions = 0,
+ };
+ return drmCommandWrite(bo->dev->fd,
+ DRM_OMAP_GEM_CPU_FINI, &req, sizeof(req));
+}
diff --git a/omap/omap_drm.h b/omap/omap_drm.h
new file mode 100644
index 0000000..9c6c0e4
--- /dev/null
+++ b/omap/omap_drm.h
@@ -0,0 +1,135 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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
+ * 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.
+ *
+ * Authors:
+ * Rob Clark <rob@ti.com>
+ */
+
+#ifndef __OMAP_DRM_H__
+#define __OMAP_DRM_H__
+
+#include <stdint.h>
+#include <drm.h>
+
+/* Please note that modifications to all structs defined here are
+ * subject to backwards-compatibility constraints.
+ */
+
+#define OMAP_PARAM_CHIPSET_ID 1 /* ie. 0x3430, 0x4430, etc */
+
+struct drm_omap_param {
+ uint64_t param; /* in */
+ uint64_t value; /* in (set_param), out (get_param) */
+};
+
+struct drm_omap_get_base {
+ char plugin_name[64]; /* in */
+ uint32_t ioctl_base; /* out */
+ uint32_t __pad;
+};
+
+#define OMAP_BO_SCANOUT 0x00000001 /* scanout capable (phys contiguous) */
+#define OMAP_BO_CACHE_MASK 0x00000006 /* cache type mask, see cache modes */
+#define OMAP_BO_TILED_MASK 0x00000f00 /* tiled mapping mask, see tiled modes */
+
+/* cache modes */
+#define OMAP_BO_CACHED 0x00000000 /* default */
+#define OMAP_BO_WC 0x00000002 /* write-combine */
+#define OMAP_BO_UNCACHED 0x00000004 /* strongly-ordered (uncached) */
+
+/* tiled modes */
+#define OMAP_BO_TILED_8 0x00000100
+#define OMAP_BO_TILED_16 0x00000200
+#define OMAP_BO_TILED_32 0x00000300
+#define OMAP_BO_TILED (OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32)
+
+union omap_gem_size {
+ uint32_t bytes; /* (for non-tiled formats) */
+ struct {
+ uint16_t width;
+ uint16_t height;
+ } tiled; /* (for tiled formats) */
+};
+
+struct drm_omap_gem_new {
+ union omap_gem_size size; /* in */
+ uint32_t flags; /* in */
+ uint32_t handle; /* out */
+ uint32_t __pad;
+};
+
+/* mask of operations: */
+enum omap_gem_op {
+ OMAP_GEM_READ = 0x01,
+ OMAP_GEM_WRITE = 0x02,
+};
+
+struct drm_omap_gem_cpu_prep {
+ uint32_t handle; /* buffer handle (in) */
+ uint32_t op; /* mask of omap_gem_op (in) */
+};
+
+struct drm_omap_gem_cpu_fini {
+ uint32_t handle; /* buffer handle (in) */
+ uint32_t op; /* mask of omap_gem_op (in) */
+ /* TODO maybe here we pass down info about what regions are touched
+ * by sw so we can be clever about cache ops? For now a placeholder,
+ * set to zero and we just do full buffer flush..
+ */
+ uint32_t nregions;
+ uint32_t __pad;
+};
+
+struct drm_omap_gem_info {
+ uint32_t handle; /* buffer handle (in) */
+ uint32_t pad;
+ uint64_t offset; /* mmap offset (out) */
+ /* note: in case of tiled buffers, the user virtual size can be
+ * different from the physical size (ie. how many pages are needed
+ * to back the object) which is returned in DRM_IOCTL_GEM_OPEN..
+ * This size here is the one that should be used if you want to
+ * mmap() the buffer:
+ */
+ uint32_t size; /* virtual size for mmap'ing (out) */
+ uint32_t __pad;
+};
+
+#define DRM_OMAP_GET_PARAM 0x00
+#define DRM_OMAP_SET_PARAM 0x01
+#define DRM_OMAP_GET_BASE 0x02
+#define DRM_OMAP_GEM_NEW 0x03
+#define DRM_OMAP_GEM_CPU_PREP 0x04
+#define DRM_OMAP_GEM_CPU_FINI 0x05
+#define DRM_OMAP_GEM_INFO 0x06
+#define DRM_OMAP_NUM_IOCTLS 0x07
+
+#define DRM_IOCTL_OMAP_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param)
+#define DRM_IOCTL_OMAP_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param)
+#define DRM_IOCTL_OMAP_GET_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_BASE, struct drm_omap_get_base)
+#define DRM_IOCTL_OMAP_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new)
+#define DRM_IOCTL_OMAP_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep)
+#define DRM_IOCTL_OMAP_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini)
+#define DRM_IOCTL_OMAP_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info)
+
+#endif /* __OMAP_DRM_H__ */
diff --git a/omap/omap_drmif.h b/omap/omap_drmif.h
new file mode 100644
index 0000000..e62d127
--- /dev/null
+++ b/omap/omap_drmif.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2011 Texas Instruments, Inc
+ *
+ * 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
+ * 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.
+ *
+ * Authors:
+ * Rob Clark <rob@ti.com>
+ */
+
+#ifndef OMAP_DRMIF_H_
+#define OMAP_DRMIF_H_
+
+#include <xf86drm.h>
+#include <stdint.h>
+#include <omap_drm.h>
+
+struct omap_bo;
+struct omap_device;
+
+/* device related functions:
+ */
+
+struct omap_device * omap_device_new(int fd);
+struct omap_device * omap_device_ref(struct omap_device *dev);
+void omap_device_del(struct omap_device *dev);
+int omap_get_param(struct omap_device *dev, uint64_t param, uint64_t *value);
+int omap_set_param(struct omap_device *dev, uint64_t param, uint64_t value);
+
+/* buffer-object related functions:
+ */
+
+struct omap_bo * omap_bo_new(struct omap_device *dev,
+ uint32_t size, uint32_t flags);
+struct omap_bo * omap_bo_new_tiled(struct omap_device *dev,
+ uint32_t width, uint32_t height, uint32_t flags);
+struct omap_bo * omap_bo_ref(struct omap_bo *bo);
+struct omap_bo * omap_bo_from_name(struct omap_device *dev, uint32_t name);
+struct omap_bo * omap_bo_from_dmabuf(struct omap_device *dev, int fd);
+void omap_bo_del(struct omap_bo *bo);
+int omap_bo_get_name(struct omap_bo *bo, uint32_t *name);
+uint32_t omap_bo_handle(struct omap_bo *bo);
+int omap_bo_dmabuf(struct omap_bo *bo);
+uint32_t omap_bo_size(struct omap_bo *bo);
+void * omap_bo_map(struct omap_bo *bo);
+int omap_bo_cpu_prep(struct omap_bo *bo, enum omap_gem_op op);
+int omap_bo_cpu_fini(struct omap_bo *bo, enum omap_gem_op op);
+
+#endif /* OMAP_DRMIF_H_ */