108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2015 MediaTek Inc.
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*/
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#ifndef __CMDQ_DRIVER_H__
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#define __CMDQ_DRIVER_H__
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include "cmdq_def.h"
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struct cmdqUsageInfoStruct {
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/* [OUT] current engine ref count */
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uint32_t count[CMDQ_MAX_ENGINE_COUNT];
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};
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struct cmdqJobStruct {
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struct cmdqCommandStruct command; /* [IN] the job to perform */
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cmdqJobHandle_t hJob; /* [OUT] handle to resulting job */
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};
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struct cmdqJobResultStruct {
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/* [IN] Job handle from CMDQ_IOCTL_ASYNC_JOB_EXEC */
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cmdqJobHandle_t hJob;
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/* [OUT] engine flag passed down originally */
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uint64_t engineFlag;
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/* [IN/OUT] read register values, if any. */
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/* as input, the "count" field must represent */
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/* buffer space pointed by "regValues". */
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/* Upon return, CMDQ driver fills "count" with */
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/* actual requested register count. */
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/* However, if the input "count" is too small, */
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/* -ENOMEM is returned, and "count" is filled */
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/* with requested register count. */
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struct cmdqRegValueStruct regValue;
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/* [IN/OUT] physical address to read */
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struct cmdqReadAddressStruct readAddress;
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};
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struct cmdqWriteAddressStruct {
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/* [IN] count of the writable buffer */
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/* (unit is # of uint32_t, NOT in byte) */
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uint32_t count;
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/* [OUT] When Alloc, this is the resulting PA. */
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/* It is guaranteed to be continuous. */
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/* [IN] When Free, please pass returned address down to ioctl. */
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/* */
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/* indeed param startPA should be */
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/* UNSIGNED LONG type for 64 bit kernel. */
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/* Considering our plartform supports max */
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/* 4GB RAM(upper-32bit don't care for SW) */
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/* and consistent common code interface, remain uint32_t type. */
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uint32_t startPA;
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};
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#define CMDQ_IOCTL_MAGIC_NUMBER 'x'
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#define CMDQ_IOCTL_LOCK_MUTEX _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 1, int)
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#define CMDQ_IOCTL_UNLOCK_MUTEX _IOR(CMDQ_IOCTL_MAGIC_NUMBER, 2, int)
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#define CMDQ_IOCTL_EXEC_COMMAND _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 3, \
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struct cmdqCommandStruct)
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#define CMDQ_IOCTL_QUERY_USAGE _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 4, \
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struct cmdqUsageInfoStruct)
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/* */
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/* Async operations */
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/* */
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#define CMDQ_IOCTL_ASYNC_JOB_EXEC _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 5, \
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struct cmdqJobStruct)
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#define CMDQ_IOCTL_ASYNC_JOB_WAIT_AND_CLOSE _IOR(CMDQ_IOCTL_MAGIC_NUMBER, 6, \
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struct cmdqJobResultStruct)
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#define CMDQ_IOCTL_ALLOC_WRITE_ADDRESS _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 7, \
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struct cmdqWriteAddressStruct)
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#define CMDQ_IOCTL_FREE_WRITE_ADDRESS _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 8, \
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struct cmdqWriteAddressStruct)
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#define CMDQ_IOCTL_READ_ADDRESS_VALUE _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 9, \
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struct cmdqReadAddressStruct)
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/* */
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/* Chip capability query. output parameter is a bit field. */
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/* Bit definition is CMDQ_CAP_BITS. */
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/* */
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#define CMDQ_IOCTL_QUERY_CAP_BITS _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 10, int)
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/* */
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/* HW info. from DTS */
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/* */
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#define CMDQ_IOCTL_QUERY_DTS _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 11, \
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struct cmdqDTSDataStruct)
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/* */
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/* Notify MDP will use specified engine before really use. */
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/* input int is same as EngineFlag. */
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/* */
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#define CMDQ_IOCTL_NOTIFY_ENGINE _IOW(CMDQ_IOCTL_MAGIC_NUMBER, 12, uint64_t)
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s32 cmdq_driver_ioctl_query_usage(struct file *pf, unsigned long param);
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s32 cmdq_driver_ioctl_query_cap_bits(unsigned long param);
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s32 cmdq_driver_ioctl_query_dts(unsigned long param);
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s32 cmdq_driver_ioctl_notify_engine(unsigned long param);
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void cmdq_driver_dump_readback(u32 *addrs, u32 count, u32 *values);
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#endif /* __CMDQ_DRIVER_H__ */
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