LXR linux/sound/soc/intel/common/sst-dsp-priv.h

   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
 102