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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Intel Smart Sound Technology (SST) Core4 *5 * Copyright (C) 2013, Intel Corporation6 */7 8#ifndef __SOUND_SOC_SST_DSP_H9#define __SOUND_SOC_SST_DSP_H10 11#include <linux/kernel.h>12#include <linux/types.h>13#include <linux/interrupt.h>14 15struct sst_dsp;16 17/*18 * SST Device.19 *20 * This structure is populated by the SST core driver.21 */22struct sst_dsp_device {23 /* Mandatory fields */24 struct sst_ops *ops;25 irqreturn_t (*thread)(int irq, void *context);26 void *thread_context;27};28 29/* SHIM Read / Write */30void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);31u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);32int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,33 u32 mask, u32 value);34void sst_dsp_shim_update_bits_forced(struct sst_dsp *sst, u32 offset,35 u32 mask, u32 value);36 37/* SHIM Read / Write Unlocked for callers already holding sst lock */38void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);39u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);40int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,41 u32 mask, u32 value);42void sst_dsp_shim_update_bits_forced_unlocked(struct sst_dsp *sst, u32 offset,43 u32 mask, u32 value);44 45/* Internal generic low-level SST IO functions - can be overidden */46void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);47u32 sst_shim32_read(void __iomem *addr, u32 offset);48void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);49u64 sst_shim32_read64(void __iomem *addr, u32 offset);50 51/* Mailbox management */52int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset,53 size_t inbox_size, u32 outbox_offset, size_t outbox_size);54void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes);55void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes);56void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes);57void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes);58int sst_dsp_register_poll(struct sst_dsp *ctx, u32 offset, u32 mask,59 u32 target, u32 time, char *operation);60 61#endif62