28 lines
745 B
C
28 lines
745 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2020 MediaTek Inc.
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*/
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#ifndef APU_MBOX_H
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#define APU_MBOX_H
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struct apu_mbox_hdr {
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unsigned int id;
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unsigned int len;
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unsigned int serial_no;
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unsigned int csum;
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};
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#define APU_MBOX_SLOT_SIZE (4)
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#define APU_MBOX_HDR_SLOTS \
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(sizeof(struct apu_mbox_hdr) / APU_MBOX_SLOT_SIZE)
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void apu_mbox_ack_outbox(struct mtk_apu *apu);
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void apu_mbox_read_outbox(struct mtk_apu *apu, struct apu_mbox_hdr *hdr);
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int apu_mbox_wait_inbox(struct mtk_apu *apu);
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void apu_mbox_write_inbox(struct mtk_apu *apu, struct apu_mbox_hdr *hdr);
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void apu_mbox_inbox_init(struct mtk_apu *apu);
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void apu_mbox_hw_init(struct mtk_apu *apu);
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void apu_mbox_hw_exit(struct mtk_apu *apu);
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#endif /* APU_MBOX_H */
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