1 /*
2  * mtk-base-afe.h  --  Mediatek base afe structure
3  *
4  * Copyright (c) 2016 MediaTek Inc.
5  * Author: Garlic Tseng <garlic.tseng@mediatek.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 and
9  * only version 2 as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  */
16 
17 #ifndef _MTK_BASE_AFE_H_
18 #define _MTK_BASE_AFE_H_
19 
20 struct mtk_base_memif_data {
21 	int id;
22 	const char *name;
23 	int reg_ofs_base;
24 	int reg_ofs_cur;
25 	int fs_reg;
26 	int fs_shift;
27 	int fs_maskbit;
28 	int mono_reg;
29 	int mono_shift;
30 	int enable_reg;
31 	int enable_shift;
32 	int hd_reg;
33 	int hd_shift;
34 	int msb_reg;
35 	int msb_shift;
36 	int agent_disable_reg;
37 	int agent_disable_shift;
38 };
39 
40 struct mtk_base_irq_data {
41 	int id;
42 	int irq_cnt_reg;
43 	int irq_cnt_shift;
44 	int irq_cnt_maskbit;
45 	int irq_fs_reg;
46 	int irq_fs_shift;
47 	int irq_fs_maskbit;
48 	int irq_en_reg;
49 	int irq_en_shift;
50 	int irq_clr_reg;
51 	int irq_clr_shift;
52 };
53 
54 struct device;
55 struct mtk_base_afe_memif;
56 struct mtk_base_afe_irq;
57 struct regmap;
58 struct snd_pcm_substream;
59 struct snd_soc_dai;
60 
61 struct mtk_base_afe {
62 	void __iomem *base_addr;
63 	struct device *dev;
64 	struct regmap *regmap;
65 	struct mutex irq_alloc_lock; /* dynamic alloc irq lock */
66 
67 	unsigned int const *reg_back_up_list;
68 	unsigned int *reg_back_up;
69 	unsigned int reg_back_up_list_num;
70 
71 	int (*runtime_suspend)(struct device *dev);
72 	int (*runtime_resume)(struct device *dev);
73 	bool suspended;
74 
75 	struct mtk_base_afe_memif *memif;
76 	int memif_size;
77 	struct mtk_base_afe_irq *irqs;
78 	int irqs_size;
79 
80 	const struct snd_pcm_hardware *mtk_afe_hardware;
81 	int (*memif_fs)(struct snd_pcm_substream *substream,
82 			unsigned int rate);
83 	int (*irq_fs)(struct snd_pcm_substream *substream,
84 		      unsigned int rate);
85 
86 	void *platform_priv;
87 };
88 
89 struct mtk_base_afe_memif {
90 	unsigned int phys_buf_addr;
91 	int buffer_size;
92 	struct snd_pcm_substream *substream;
93 	const struct mtk_base_memif_data *data;
94 	int irq_usage;
95 	int const_irq;
96 };
97 
98 struct mtk_base_afe_irq {
99 	const struct mtk_base_irq_data *irq_data;
100 	int irq_occupyed;
101 };
102 
103 #endif
104 
105