36 lines
1 KiB
C
36 lines
1 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2016 MediaTek Inc.
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*/
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#ifndef __SSPM_MBOX_H__
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#define __SSPM_MBOX_H__
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#include <linux/platform_device.h>
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enum SSPM_MBOX_SIZE {
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SSPM_MBOX_4BYTE = 0x80,
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SSPM_MBOX_8BYTE = 0x100,
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};
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extern struct platform_device *sspm_pdev;
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typedef unsigned int (*sspm_ipi_isr)(unsigned int mbox, void __iomem *base,
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unsigned int irq);
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unsigned int sspm_mbox_size(int mbox);
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extern int sspm_mbox_send(unsigned int mbox, unsigned int slot,
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unsigned int irq, void *data, unsigned int len);
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extern uint32_t *sspm_mbox_addr(unsigned int mbox, unsigned int slot);
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extern int sspm_mbox_read(unsigned int mbox, unsigned int slot, void *data,
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unsigned int len);
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extern int sspm_mbox_write(unsigned int mbox, unsigned int slot, void *data,
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unsigned int len);
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extern unsigned int sspm_mbox_init(unsigned int mode, unsigned int count,
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sspm_ipi_isr ipi_isr_cb);
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extern int sspm_mbox_polling(unsigned int mbox, unsigned int irq,
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unsigned int slot, unsigned int *retdata, unsigned int retlen,
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unsigned int retries);
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#endif
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