99 lines
2.3 KiB
C
Executable File
99 lines
2.3 KiB
C
Executable File
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
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*
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*/
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#ifndef __GH_MSGQ_H
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#define __GH_MSGQ_H
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#include <linux/types.h>
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#include <linux/platform_device.h>
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#include "gh_common.h"
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enum gh_msgq_label {
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GH_MSGQ_LABEL_RM,
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GH_MSGQ_LABEL_MEMBUF,
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GH_MSGQ_LABEL_DISPLAY,
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GH_MSGQ_LABEL_VSOCK,
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GH_MSGQ_LABEL_TEST_TUIVM,
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GH_MSGQ_LABEL_TEST_OEMVM,
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GH_MSGQ_LABEL_MMRM,
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GH_MSGQ_LABEL_EVA,
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GH_MSGQ_VCPU_SCHED_TEST,
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GH_MSGQ_VCPU_SCHED_TEST_OEMVM,
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GH_MSGQ_LABEL_SMMU_PROXY,
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GH_MSGQ_LABEL_RESOURCE_REQUEST,
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GH_MSGQ_LABEL_MEMBUF_OEMVM,
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GH_MSGQ_LABEL_DMABUF_TEST_TUIVM,
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GH_MSGQ_LABEL_DMABUF_TEST_OEMVM,
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GH_MSGQ_LABEL_MAX
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};
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#define GH_MSGQ_MAX_MSG_SIZE_BYTES 240
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#define GH_MSGQ_DIRECTION_TX 0
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#define GH_MSGQ_DIRECTION_RX 1
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/* Possible flags to pass for Tx or Rx */
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#define GH_MSGQ_TX_PUSH BIT(0)
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#define GH_MSGQ_NONBLOCK BIT(32)
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#if IS_ENABLED(CONFIG_GH_MSGQ)
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void *gh_msgq_register(int label);
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int gh_msgq_unregister(void *msgq_client_desc);
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int gh_msgq_send(void *msgq_client_desc,
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void *buff, size_t size, unsigned long flags);
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int gh_msgq_recv(void *msgq_client_desc,
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void *buff, size_t buff_size,
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size_t *recv_size, unsigned long flags);
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int gh_msgq_populate_cap_info(int label, u64 cap_id,
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int direction, int irq);
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int gh_msgq_probe(struct platform_device *pdev, int label);
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int gh_msgq_reset_cap_info(enum gh_msgq_label label, int direction, int *irq);
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#else
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static inline void *gh_msgq_register(int label)
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{
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return ERR_PTR(-ENODEV);
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}
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static inline int gh_msgq_unregister(void *msgq_client_desc)
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{
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return -EINVAL;
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}
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static inline int gh_msgq_send(void *msgq_client_desc,
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void *buff, size_t size, unsigned long flags)
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{
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return -EINVAL;
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}
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static inline int gh_msgq_recv(void *msgq_client_desc,
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void *buff, size_t buff_size,
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size_t *recv_size, unsigned long flags)
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{
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return -EINVAL;
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}
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static inline int gh_msgq_populate_cap_info(int label, u64 cap_id,
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int direction, int irq)
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{
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return -EINVAL;
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}
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static inline
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int gh_msgq_reset_cap_info(enum gh_msgq_label label, int direction, int *irq)
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{
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return -EINVAL;
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}
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static inline int gh_msgq_probe(struct platform_device *pdev, int label)
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{
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return -ENODEV;
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}
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#endif
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#endif
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