1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Intel Smart Sound Technology
4 *
5 * Copyright (C) 2013, Intel Corporation
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
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.