62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Intel Smart Sound Technology (SST) Core
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*
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* Copyright (C) 2013, Intel Corporation. All rights reserved.
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*/
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#ifndef __SOUND_SOC_SST_DSP_H
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#define __SOUND_SOC_SST_DSP_H
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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struct sst_dsp;
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/*
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* SST Device.
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*
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* This structure is populated by the SST core driver.
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*/
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struct sst_dsp_device {
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/* Mandatory fields */
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struct sst_ops *ops;
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irqreturn_t (*thread)(int irq, void *context);
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void *thread_context;
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};
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/* SHIM Read / Write */
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void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);
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u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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void sst_dsp_shim_update_bits_forced(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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/* SHIM Read / Write Unlocked for callers already holding sst lock */
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void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);
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u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);
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int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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void sst_dsp_shim_update_bits_forced_unlocked(struct sst_dsp *sst, u32 offset,
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u32 mask, u32 value);
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/* Internal generic low-level SST IO functions - can be overidden */
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void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);
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u32 sst_shim32_read(void __iomem *addr, u32 offset);
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void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);
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u64 sst_shim32_read64(void __iomem *addr, u32 offset);
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/* Mailbox management */
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int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset,
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size_t inbox_size, u32 outbox_offset, size_t outbox_size);
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void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes);
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void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes);
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void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes);
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void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes);
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int sst_dsp_register_poll(struct sst_dsp *ctx, u32 offset, u32 mask,
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u32 target, u32 time, char *operation);
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#endif
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