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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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112 lines
3.6 KiB
C
112 lines
3.6 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 2015 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __NV_KMS_H__
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#define __NV_KMS_H__
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#include "nvtypes.h"
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#if defined(NV_KERNEL_INTERFACE_LAYER) && defined(NV_LINUX)
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#include <linux/stddef.h> /* size_t */
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#else
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#include <stddef.h> /* size_t */
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#endif
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#include "nvkms-kapi.h"
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typedef struct nvkms_per_open nvkms_per_open_handle_t;
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typedef void nvkms_procfs_out_string_func_t(void *data,
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const char *str);
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typedef void nvkms_procfs_proc_t(void *data,
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char *buffer, size_t size,
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nvkms_procfs_out_string_func_t *outString);
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/* max number of loops to prevent hanging the kernel if an edge case is hit */
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#define NVKMS_READ_FILE_MAX_LOOPS 1000
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/* max size for any file read by the config system */
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#define NVKMS_READ_FILE_MAX_SIZE 8192
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/*
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* The read file callback should allocate a buffer pointed to by *buff, fill it
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* with the contents of fname, and return the size of the buffer. Buffer is not
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* guaranteed to be null-terminated. The caller is responsible for freeing the
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* buffer with nvkms_free, not nvFree.
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*/
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typedef size_t nvkms_config_read_file_func_t(char *fname,
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char ** const buff);
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typedef struct {
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const char *name;
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nvkms_procfs_proc_t *func;
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} nvkms_procfs_file_t;
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enum NvKmsClientType {
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NVKMS_CLIENT_USER_SPACE,
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NVKMS_CLIENT_KERNEL_SPACE,
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};
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struct NvKmsPerOpenDev;
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NvBool nvKmsIoctl(
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void *pOpenVoid,
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NvU32 cmd,
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NvU64 paramsAddress,
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const size_t paramSize);
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void nvKmsClose(void *pOpenVoid);
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void* nvKmsOpen(
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NvU32 pid,
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enum NvKmsClientType clientType,
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nvkms_per_open_handle_t *pOpenKernel);
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NvBool nvKmsModuleLoad(void);
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void nvKmsModuleUnload(void);
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void nvKmsSuspend(NvU32 gpuId);
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void nvKmsResume(NvU32 gpuId);
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void nvKmsGetProcFiles(const nvkms_procfs_file_t **ppProcFiles);
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NvBool nvKmsReadConf(const char *buff, size_t size,
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nvkms_config_read_file_func_t readfile);
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void nvKmsKapiHandleEventQueueChange
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(
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struct NvKmsKapiDevice *device
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);
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NvBool nvKmsKapiGetFunctionsTableInternal
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(
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struct NvKmsKapiFunctionsTable *funcsTable
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);
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NvBool nvKmsGetBacklight(NvU32 display_id, void *drv_priv, NvU32 *brightness);
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NvBool nvKmsSetBacklight(NvU32 display_id, void *drv_priv, NvU32 brightness);
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NvBool nvKmsOpenDevHasSubOwnerPermissionOrBetter(const struct NvKmsPerOpenDev *pOpenDev);
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#endif /* __NV_KMS_H__ */
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