1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Intel Smart Sound Technology
  4 *
  5 * Copyright (C) 2013, Intel Corporation. All rights reserved.
  6 */
  7
  8#ifndef __SOUND_SOC_SST_DSP_PRIV_H
  9#define __SOUND_SOC_SST_DSP_PRIV_H
 10
 11#include <linux/kernel.h>
 12#include <linux/types.h>
 13#include <linux/interrupt.h>
 14#include <linux/firmware.h>
 15
 16#include "../skylake/skl-sst-dsp.h"
 17
 18/*
 19 * DSP Operations exported by platform Audio DSP driver.
 20 */
 21struct sst_ops {
 22	/* Shim IO */
 23	void (*write)(void __iomem *addr, u32 offset, u32 value);
 24	u32 (*read)(void __iomem *addr, u32 offset);
 25
 26	/* IRQ handlers */
 27	irqreturn_t (*irq_handler)(int irq, void *context);
 28
 29	/* SST init and free */
 30	int (*init)(struct sst_dsp *sst);
 31	void (*free)(struct sst_dsp *sst);
 32};
 33
 34/*
 35 * Audio DSP memory offsets and addresses.
 36 */
 37struct sst_addr {
 38	u32 sram0_base;
 39	u32 sram1_base;
 40	u32 w0_stat_sz;
 41	u32 w0_up_sz;
 42	void __iomem *lpe;
 43	void __iomem *shim;
 44};
 45
 46/*
 47 * Audio DSP Mailbox configuration.
 48 */
 49struct sst_mailbox {
 50	void __iomem *in_base;
 51	void __iomem *out_base;
 52	size_t in_size;
 53	size_t out_size;
 54};
 55
 56/*
 57 * Generic SST Shim Interface.
 58 */
 59struct sst_dsp {
 60
 61	/* Shared for all platforms */
 62
 63	/* runtime */
 64	struct sst_dsp_device *sst_dev;
 65	spinlock_t spinlock;	/* IPC locking */
 66	struct mutex mutex;	/* DSP FW lock */
 67	struct device *dev;
 68	void *thread_context;
 69	int irq;
 70	u32 id;
 71
 72	/* operations */
 73	struct sst_ops *ops;
 74
 75	/* debug FS */
 76	struct dentry *debugfs_root;
 77
 78	/* base addresses */
 79	struct sst_addr addr;
 80
 81	/* mailbox */
 82	struct sst_mailbox mailbox;
 83
 84	/* SST FW files loaded and their modules */
 85	struct list_head module_list;
 86
 87	/* SKL data */
 88
 89	const char *fw_name;
 90
 91	/* To allocate CL dma buffers */
 92	struct skl_dsp_loader_ops dsp_ops;
 93	struct skl_dsp_fw_ops fw_ops;
 94	int sst_state;
 95	struct skl_cl_dev cl_dev;
 96	u32 intr_status;
 97	const struct firmware *fw;
 98	struct snd_dma_buffer dmab;
 99};
100
101#endif