diff options
Diffstat (limited to 'exynos')
| -rw-r--r-- | exynos/Makefile.am | 22 | ||||
| -rw-r--r-- | exynos/exynos_drm.c | 396 | ||||
| -rw-r--r-- | exynos/exynos_drm.h | 146 | ||||
| -rw-r--r-- | exynos/exynos_drmif.h | 88 | ||||
| -rw-r--r-- | exynos/libdrm_exynos.pc.in | 11 |
5 files changed, 663 insertions, 0 deletions
diff --git a/exynos/Makefile.am b/exynos/Makefile.am new file mode 100644 index 00000000..e782d34d --- /dev/null +++ b/exynos/Makefile.am @@ -0,0 +1,22 @@ +AM_CFLAGS = \ + $(WARN_CFLAGS) \ + -I$(top_srcdir) \ + -I$(top_srcdir)/exynos \ + $(PTHREADSTUBS_CFLAGS) \ + -I$(top_srcdir)/include/drm + +libdrm_exynos_la_LTLIBRARIES = libdrm_exynos.la +libdrm_exynos_ladir = $(libdir) +libdrm_exynos_la_LDFLAGS = -version-number 1:0:0 -no-undefined +libdrm_exynos_la_LIBADD = ../libdrm.la @PTHREADSTUBS_LIBS@ + +libdrm_exynos_la_SOURCES = exynos_drm.c + +libdrm_exynoscommonincludedir = ${includedir}/exynos +libdrm_exynoscommoninclude_HEADERS = exynos_drm.h + +libdrm_exynosincludedir = ${includedir}/libdrm +libdrm_exynosinclude_HEADERS = exynos_drmif.h + +pkgconfigdir = @pkgconfigdir@ +pkgconfig_DATA = libdrm_exynos.pc diff --git a/exynos/exynos_drm.c b/exynos/exynos_drm.c new file mode 100644 index 00000000..4db755e7 --- /dev/null +++ b/exynos/exynos_drm.c @@ -0,0 +1,396 @@ +/* + * Copyright (C) 2012 Samsung Electronics Co., Ltd. + * + * 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: + * Inki Dae <inki.dae@samsung.com> + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#include <sys/mman.h> +#include <linux/stddef.h> + +#include <xf86drm.h> + +#include "exynos_drm.h" +#include "exynos_drmif.h" + +/* + * Create exynos drm device object. + * + * @fd: file descriptor to exynos drm driver opened. + * + * if true, return the device object else NULL. + */ +struct exynos_device * exynos_device_create(int fd) +{ + struct exynos_device *dev; + + dev = calloc(sizeof(*dev), 1); + if (!dev) { + fprintf(stderr, "failed to create device[%s].\n", + strerror(errno)); + return NULL; + } + + dev->fd = fd; + + return dev; +} + +/* + * Destroy exynos drm device object + * + * @dev: exynos drm device object. + */ +void exynos_device_destroy(struct exynos_device *dev) +{ + free(dev); +} + +/* + * Create a exynos buffer object to exynos drm device. + * + * @dev: exynos drm device object. + * @size: user-desired size. + * flags: user-desired memory type. + * user can set one or more types among several types to memory + * allocation and cache attribute types. and as default, + * EXYNOS_BO_NONCONTIG and EXYNOS-BO_NONCACHABLE types would + * be used. + * + * if true, return a exynos buffer object else NULL. + */ +struct exynos_bo * exynos_bo_create(struct exynos_device *dev, + size_t size, uint32_t flags) +{ + struct exynos_bo *bo; + struct drm_exynos_gem_create req = { + .size = size, + .flags = flags, + }; + + if (size == 0) { + fprintf(stderr, "invalid size.\n"); + goto fail; + } + + bo = calloc(sizeof(*bo), 1); + if (!bo) { + fprintf(stderr, "failed to create bo[%s].\n", + strerror(errno)); + goto err_free_bo; + } + + bo->dev = dev; + + if (drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_CREATE, &req)){ + fprintf(stderr, "failed to create gem object[%s].\n", + strerror(errno)); + goto err_free_bo; + } + + bo->handle = req.handle; + bo->size = size; + bo->flags = flags; + + return bo; + +err_free_bo: + free(bo); +fail: + return NULL; +} + +/* + * Get information to gem region allocated. + * + * @dev: exynos drm device object. + * @handle: gem handle to request gem info. + * @size: size to gem object and returned by kernel side. + * @flags: gem flags to gem object and returned by kernel side. + * + * with this function call, you can get flags and size to gem handle + * through bo object. + * + * if true, return 0 else negative. + */ +int exynos_bo_get_info(struct exynos_device *dev, uint32_t handle, + size_t *size, uint32_t *flags) +{ + int ret; + struct drm_exynos_gem_info req = { + .handle = handle, + }; + + ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_GET, &req); + if (ret < 0) { + fprintf(stderr, "failed to get gem object information[%s].\n", + strerror(errno)); + return ret; + } + + *size = req.size; + *flags = req.flags; + + return 0; +} + +/* + * Destroy a exynos buffer object. + * + * @bo: a exynos buffer object to be destroyed. + */ +void exynos_bo_destroy(struct exynos_bo *bo) +{ + if (!bo) + return; + + if (bo->vaddr) + munmap(bo->vaddr, bo->size); + + if (bo->handle) { + struct drm_gem_close req = { + .handle = bo->handle, + }; + + drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req); + } + + free(bo); +} + + +/* + * Get a exynos buffer object from a gem global object name. + * + * @dev: a exynos device object. + * @name: a gem global object name exported by another process. + * + * this interface is used to get a exynos buffer object from a gem + * global object name sent by another process for buffer sharing. + * + * if true, return a exynos buffer object else NULL. + * + */ +struct exynos_bo * exynos_bo_from_name(struct exynos_device *dev, uint32_t name) +{ + struct exynos_bo *bo; + struct drm_gem_open req = { + .name = name, + }; + + bo = calloc(sizeof(*bo), 1); + if (!bo) { + fprintf(stderr, "failed to allocate bo[%s].\n", + strerror(errno)); + return NULL; + } + + if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) { + fprintf(stderr, "failed to open gem object[%s].\n", + strerror(errno)); + goto err_free_bo; + } + + bo->dev = dev; + bo->name = name; + bo->handle = req.handle; + + return bo; + +err_free_bo: + free(bo); + return NULL; +} + +/* + * Get a gem global object name from a gem object handle. + * + * @bo: a exynos buffer object including gem handle. + * @name: a gem global object name to be got by kernel driver. + * + * this interface is used to get a gem global object name from a gem object + * handle to a buffer that wants to share it with another process. + * + * if true, return 0 else negative. + */ +int exynos_bo_get_name(struct exynos_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) { + fprintf(stderr, "failed to get gem global name[%s].\n", + strerror(errno)); + return ret; + } + + bo->name = req.name; + } + + *name = bo->name; + + return 0; +} + +uint32_t exynos_bo_handle(struct exynos_bo *bo) +{ + return bo->handle; +} + +/* + * Mmap a buffer to user space. + * + * @bo: a exynos buffer object including a gem object handle to be mmapped + * to user space. + * + * if true, user pointer mmaped else NULL. + */ +void *exynos_bo_map(struct exynos_bo *bo) +{ + if (!bo->vaddr) { + struct exynos_device *dev = bo->dev; + struct drm_exynos_gem_mmap req = { + .handle = bo->handle, + .size = bo->size, + }; + int ret; + + ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_GEM_MMAP, &req); + if (ret) { + fprintf(stderr, "failed to mmap[%s].\n", + strerror(errno)); + return NULL; + } + + bo->vaddr = req.mapped; + } + + return bo->vaddr; +} + +/* + * Export gem object to dmabuf as file descriptor. + * + * @dev: a exynos device object. + * @handle: gem handle to be exported into dmabuf as file descriptor. + * @fd: file descriptor to dmabuf exported from gem handle and + * returned by kernel side. + * + * if true, return 0 else negative. + */ +int exynos_prime_handle_to_fd(struct exynos_device *dev, uint32_t handle, + int *fd) +{ + int ret; + struct drm_prime_handle req = { + .handle = handle, + }; + + ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &req); + if (ret) { + fprintf(stderr, "failed to mmap[%s].\n", + strerror(errno)); + return ret; + } + + *fd = req.fd; + return 0; +} + +/* + * Import file descriptor into gem handle. + * + * @dev: a exynos device object. + * @fd: file descriptor exported into dmabuf. + * @handle: gem handle to gem object imported from file descriptor + * and returned by kernel side. + * + * if true, return 0 else negative. + */ +int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd, + uint32_t *handle) +{ + int ret; + struct drm_prime_handle req = { + .fd = fd, + }; + + ret = drmIoctl(dev->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &req); + if (ret) { + fprintf(stderr, "failed to mmap[%s].\n", + strerror(errno)); + return ret; + } + + *handle = req.handle; + return 0; +} + + + +/* + * Request Wireless Display connection or disconnection. + * + * @dev: a exynos device object. + * @connect: indicate whether connectoin or disconnection request. + * @ext: indicate whether edid data includes extentions data or not. + * @edid: a pointer to edid data from Wireless Display device. + * + * this interface is used to request Virtual Display driver connection or + * disconnection. for this, user should get a edid data from the Wireless + * Display device and then send that data to kernel driver with connection + * request + * + * if true, return 0 else negative. + */ +int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect, + uint32_t ext, void *edid) +{ + struct drm_exynos_vidi_connection req = { + .connection = connect, + .extensions = ext, + .edid = edid, + }; + int ret; + + ret = drmIoctl(dev->fd, DRM_IOCTL_EXYNOS_VIDI_CONNECTION, &req); + if (ret) { + fprintf(stderr, "failed to request vidi connection[%s].\n", + strerror(errno)); + return ret; + } + + return 0; +} diff --git a/exynos/exynos_drm.h b/exynos/exynos_drm.h new file mode 100644 index 00000000..dc2eef36 --- /dev/null +++ b/exynos/exynos_drm.h @@ -0,0 +1,146 @@ +/* exynos_drm.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae@samsung.com> + * Joonyoung Shim <jy0922.shim@samsung.com> + * Seung-Woo Kim <sw0312.kim@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 _EXYNOS_DRM_H_ +#define _EXYNOS_DRM_H_ + +#include "drm.h" + +/** + * User-desired buffer creation information structure. + * + * @size: user-desired memory allocation size. + * - this size value would be page-aligned internally. + * @flags: user request for setting memory type or cache attributes. + * @handle: returned a handle to created gem object. + * - this handle will be set by gem module of kernel side. + */ +struct drm_exynos_gem_create { + uint64_t size; + unsigned int flags; + unsigned int handle; +}; + +/** + * A structure for getting buffer offset. + * + * @handle: a pointer to gem object created. + * @pad: just padding to be 64-bit aligned. + * @offset: relatived offset value of the memory region allocated. + * - this value should be set by user. + */ +struct drm_exynos_gem_map_off { + unsigned int handle; + unsigned int pad; + uint64_t offset; +}; + +/** + * A structure for mapping buffer. + * + * @handle: a handle to gem object created. + * @size: memory size to be mapped. + * @mapped: having user virtual address mmaped. + * - this variable would be filled by exynos gem module + * of kernel side with user virtual address which is allocated + * by do_mmap(). + */ +struct drm_exynos_gem_mmap { + unsigned int handle; + unsigned int size; + uint64_t mapped; +}; + +/** + * A structure to gem information. + * + * @handle: a handle to gem object created. + * @flags: flag value including memory type and cache attribute and + * this value would be set by driver. + * @size: size to memory region allocated by gem and this size would + * be set by driver. + */ +struct drm_exynos_gem_info { + unsigned int handle; + unsigned int flags; + uint64_t size; +}; + +/** + * A structure for user connection request of virtual display. + * + * @connection: indicate whether doing connetion or not by user. + * @extensions: if this value is 1 then the vidi driver would need additional + * 128bytes edid data. + * @edid: the edid data pointer from user side. + */ +struct drm_exynos_vidi_connection { + unsigned int connection; + unsigned int extensions; + uint64_t edid; +}; + +/* memory type definitions. */ +enum e_drm_exynos_gem_mem_type { + /* Physically Continuous memory and used as default. */ + EXYNOS_BO_CONTIG = 0 << 0, + /* Physically Non-Continuous memory. */ + EXYNOS_BO_NONCONTIG = 1 << 0, + /* non-cachable mapping and used as default. */ + EXYNOS_BO_NONCACHABLE = 0 << 1, + /* cachable mapping. */ + EXYNOS_BO_CACHABLE = 1 << 1, + /* write-combine mapping. */ + EXYNOS_BO_WC = 1 << 2, + EXYNOS_BO_MASK = EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE | + EXYNOS_BO_WC +}; + +#define DRM_EXYNOS_GEM_CREATE 0x00 +#define DRM_EXYNOS_GEM_MAP_OFFSET 0x01 +#define DRM_EXYNOS_GEM_MMAP 0x02 +/* Reserved 0x04 ~ 0x05 for exynos specific gem ioctl */ +#define DRM_EXYNOS_GEM_GET 0x04 +#define DRM_EXYNOS_VIDI_CONNECTION 0x07 + +#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) + +#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off) + +#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap) + +#define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info) + +#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection) + +#endif diff --git a/exynos/exynos_drmif.h b/exynos/exynos_drmif.h new file mode 100644 index 00000000..92f613ea --- /dev/null +++ b/exynos/exynos_drmif.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2012 Samsung Electronics Co., Ltd. + * + * 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: + * Inki Dae <inki.dae@samsung.com> + */ + +#ifndef EXYNOS_DRMIF_H_ +#define EXYNOS_DRMIF_H_ + +#include <xf86drm.h> +#include <stdint.h> +#include "exynos_drm.h" + +struct exynos_device { + int fd; +}; + +/* + * Exynos Buffer Object structure. + * + * @dev: exynos device object allocated. + * @handle: a gem handle to gem object created. + * @flags: indicate memory allocation and cache attribute types. + * @fd: file descriptor exported into dmabuf. + * @size: size to the buffer created. + * @vaddr: user space address to a gem buffer mmaped. + * @name: a gem global handle from flink request. + */ +struct exynos_bo { + struct exynos_device *dev; + uint32_t handle; + uint32_t flags; + int fd; + size_t size; + void *vaddr; + uint32_t name; +}; + +/* + * device related functions: + */ +struct exynos_device * exynos_device_create(int fd); +void exynos_device_destroy(struct exynos_device *dev); + +/* + * buffer-object related functions: + */ +struct exynos_bo * exynos_bo_create(struct exynos_device *dev, + size_t size, uint32_t flags); +int exynos_bo_get_info(struct exynos_device *dev, uint32_t handle, + size_t *size, uint32_t *flags); +void exynos_bo_destroy(struct exynos_bo *bo); +struct exynos_bo * exynos_bo_from_name(struct exynos_device *dev, uint32_t name); +int exynos_bo_get_name(struct exynos_bo *bo, uint32_t *name); +uint32_t exynos_bo_handle(struct exynos_bo *bo); +void * exynos_bo_map(struct exynos_bo *bo); +int exynos_prime_handle_to_fd(struct exynos_device *dev, uint32_t handle, + int *fd); +int exynos_prime_fd_to_handle(struct exynos_device *dev, int fd, + uint32_t *handle); + +/* + * Virtual Display related functions: + */ +int exynos_vidi_connection(struct exynos_device *dev, uint32_t connect, + uint32_t ext, void *edid); + +#endif /* EXYNOS_DRMIF_H_ */ diff --git a/exynos/libdrm_exynos.pc.in b/exynos/libdrm_exynos.pc.in new file mode 100644 index 00000000..5ce91186 --- /dev/null +++ b/exynos/libdrm_exynos.pc.in @@ -0,0 +1,11 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: libdrm_exynos +Description: Userspace interface to exynos kernel DRM services +Version: 0.6 +Libs: -L${libdir} -ldrm_exynos +Cflags: -I${includedir} -I${includedir}/libdrm -I${includedir}/exynos +Requires.private: libdrm |