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61 lines
2.1 KiB
61 lines
2.1 KiB
/* 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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