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 */ 21 struct 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 */ 37 struct 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 */ 49 struct 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 */ 59 struct 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