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Diffstat (limited to 'gralloc960/gralloc_priv.h')
| -rw-r--r-- | gralloc960/gralloc_priv.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/gralloc960/gralloc_priv.h b/gralloc960/gralloc_priv.h new file mode 100644 index 00000000..a9453549 --- /dev/null +++ b/gralloc960/gralloc_priv.h @@ -0,0 +1,285 @@ +/* + * Copyright (C) 2010 ARM Limited. All rights reserved. + * + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef GRALLOC_PRIV_H_ +#define GRALLOC_PRIV_H_ + +#include <stdint.h> +#include <pthread.h> +#include <errno.h> +#include <linux/fb.h> +#include <linux/ion.h> +#include <sys/types.h> +#include <unistd.h> +#include <sys/mman.h> +#include <hardware/gralloc.h> +#include <cutils/native_handle.h> +#include "alloc_device.h" +#include <utils/Log.h> + +#include "mali_gralloc_formats.h" +#include "gralloc_helper.h" + + +/* NOTE: + * If your framebuffer device driver is integrated with dma_buf, you will have to + * change this IOCTL definition to reflect your integration with the framebuffer + * device. + * Expected return value is a structure filled with a file descriptor + * backing your framebuffer device memory. + */ +struct fb_dmabuf_export +{ + __u32 fd; + __u32 flags; +}; +#define FBIOGET_DMABUF _IOR('F', 0x21, struct fb_dmabuf_export) + + +/* the max string size of GRALLOC_HARDWARE_GPU0 & GRALLOC_HARDWARE_FB0 + * 8 is big enough for "gpu0" & "fb0" currently + */ +#define MALI_GRALLOC_HARDWARE_MAX_STR_LEN 8 +#define NUM_FB_BUFFERS 2 + +/* Define number of shared file descriptors */ +#define GRALLOC_ARM_NUM_FDS 2 + +#define NUM_INTS_IN_PRIVATE_HANDLE ((sizeof(struct private_handle_t) - sizeof(native_handle)) / sizeof(int) - sNumFds) + +#define SZ_4K 0x00001000 +#define SZ_2M 0x00200000 + +typedef enum +{ + MALI_YUV_NO_INFO, + MALI_YUV_BT601_NARROW, + MALI_YUV_BT601_WIDE, + MALI_YUV_BT709_NARROW, + MALI_YUV_BT709_WIDE +} mali_gralloc_yuv_info; + +typedef enum +{ + MALI_DPY_TYPE_UNKNOWN = 0, + MALI_DPY_TYPE_CLCD, + MALI_DPY_TYPE_HDLCD +} mali_dpy_type; + +struct private_handle_t; + +struct private_module_t +{ + gralloc_module_t base; + + struct private_handle_t* framebuffer; + uint32_t flags; + uint32_t numBuffers; + uint32_t bufferMask; + pthread_mutex_t lock; + buffer_handle_t currentBuffer; + int ion_client; + mali_dpy_type dpy_type; + + struct fb_var_screeninfo info; + struct fb_fix_screeninfo finfo; + float xdpi; + float ydpi; + float fps; + int swapInterval; + +#ifdef __cplusplus + /* Never intended to be used from C code */ + enum + { + // flag to indicate we'll post this buffer + PRIV_USAGE_LOCKED_FOR_POST = 0x80000000 + }; +#endif + +#ifdef __cplusplus + /* default constructor */ + private_module_t(); +#endif +}; + +#ifndef __cplusplus +/* C99 with pedantic don't allow anonymous unions which is used in below struct + * Disable pedantic for C for this struct only. + */ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wpedantic" +#endif + +#ifdef __cplusplus +struct private_handle_t : public native_handle +{ +#else +struct private_handle_t +{ + struct native_handle nativeHandle; +#endif + +#ifdef __cplusplus + /* Never intended to be used from C code */ + enum + { + PRIV_FLAGS_FRAMEBUFFER = 0x00000001, + PRIV_FLAGS_USES_ION_COMPOUND_HEAP = 0x00000002, + PRIV_FLAGS_USES_ION = 0x00000004, + PRIV_FLAGS_USES_ION_DMA_HEAP = 0x00000008 + }; + + enum + { + LOCK_STATE_WRITE = 1<<31, + LOCK_STATE_MAPPED = 1<<30, + LOCK_STATE_READ_MASK = 0x3FFFFFFF + }; +#endif + + /* + * Shared file descriptor for dma_buf sharing. This must be the first element in the + * structure so that binder knows where it is and can properly share it between + * processes. + * DO NOT MOVE THIS ELEMENT! + */ + int share_fd; + int share_attr_fd; + + ion_user_handle_t ion_hnd; + + // ints + int magic; + int req_format; + uint64_t internal_format; + int byte_stride; + int flags; + int usage; + int size; + int width; + int height; + int internalWidth; + int internalHeight; + int stride; + union { + void* base; + uint64_t padding; + }; + int lockState; + int writeOwner; + int pid; + + // locally mapped shared attribute area + union { + void* attr_base; + uint64_t padding3; + }; + + mali_gralloc_yuv_info yuv_info; + + // Following members is for framebuffer only + int fd; + union { + off_t offset; + uint64_t padding4; + }; + + /* + * min_pgsz denotes minimum phys_page size used by this buffer. + * if buffer memory is physical contiguous set min_pgsz to buff->size + * if not sure buff's real phys_page size, you can use SZ_4K for safe. + */ + int min_pgsz; +#ifdef __cplusplus + /* + * We track the number of integers in the structure. There are 16 unconditional + * integers (magic - pid, yuv_info, fd and offset). Note that the fd element is + * considered an int not an fd because it is not intended to be used outside the + * surface flinger process. The GRALLOC_ARM_NUM_INTS variable is used to track the + * number of integers that are conditionally included. Similar considerations apply + * to the number of fds. + */ + static const int sNumFds = GRALLOC_ARM_NUM_FDS; + static const int sMagic = 0x3141592; + + private_handle_t(int _flags, int _usage, int _size, void *_base, int lock_state, int fb_file, off_t fb_offset): + share_fd(-1), + share_attr_fd(-1), + ion_hnd(-1), + magic(sMagic), + flags(_flags), + usage(_usage), + size(_size), + width(0), + height(0), + stride(0), + base(_base), + lockState(lock_state), + writeOwner(0), + pid(getpid()), + attr_base(MAP_FAILED), + yuv_info(MALI_YUV_NO_INFO), + fd(fb_file), + offset(fb_offset) + { + version = sizeof(native_handle); + numFds = sNumFds; + numInts = NUM_INTS_IN_PRIVATE_HANDLE; + } + + ~private_handle_t() + { + magic = 0; + } + + bool usesPhysicallyContiguousMemory() + { + return (flags & PRIV_FLAGS_FRAMEBUFFER) ? true : false; + } + + static int validate(const native_handle* h) + { + const private_handle_t* hnd = (const private_handle_t*)h; + if (!h || + h->version != sizeof(native_handle) || + h->numInts != NUM_INTS_IN_PRIVATE_HANDLE || + h->numFds != sNumFds || + hnd->magic != sMagic) + { + return -EINVAL; + } + return 0; + } + + static private_handle_t* dynamicCast(const native_handle* in) + { + if (validate(in) == 0) + { + return (private_handle_t*) in; + } + return NULL; + } +#endif +}; +#ifndef __cplusplus +/* Restore previous diagnostic for pedantic */ +#pragma GCC diagnostic pop +#endif + +#endif /* GRALLOC_PRIV_H_ */ |