1 #ifndef __SOUND_FSI_H
2 #define __SOUND_FSI_H
3 
4 /*
5  * Fifo-attached Serial Interface (FSI) support for SH7724
6  *
7  * Copyright (C) 2009 Renesas Solutions Corp.
8  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14 
15 #define FSI_PORT_A	0
16 #define FSI_PORT_B	1
17 
18 #include <linux/clk.h>
19 #include <sound/soc.h>
20 
21 /*
22  * flags format
23  *
24  * 0x000000BA
25  *
26  * A:  inversion
27  * B:  format mode
28  */
29 
30 /* A: clock inversion */
31 #define SH_FSI_INVERSION_MASK	0x0000000F
32 #define SH_FSI_LRM_INV		(1 << 0)
33 #define SH_FSI_BRM_INV		(1 << 1)
34 #define SH_FSI_LRS_INV		(1 << 2)
35 #define SH_FSI_BRS_INV		(1 << 3)
36 
37 /* B: format mode */
38 #define SH_FSI_FMT_MASK		0x000000F0
39 #define SH_FSI_FMT_DAI		(0 << 4)
40 #define SH_FSI_FMT_SPDIF	(1 << 4)
41 
42 
43 /*
44  * set_rate return value
45  *
46  * see ACKMD/BPFMD on
47  *     ACK_MD (FSI2)
48  *     CKG1   (FSI)
49  *
50  * err		: return value <  0
51  * no change	: return value == 0
52  * change xMD	: return value >  0
53  *
54  * 0x-00000AB
55  *
56  * A:  ACKMD value
57  * B:  BPFMD value
58  */
59 
60 #define SH_FSI_ACKMD_MASK	(0xF << 0)
61 #define SH_FSI_ACKMD_512	(1 << 0)
62 #define SH_FSI_ACKMD_256	(2 << 0)
63 #define SH_FSI_ACKMD_128	(3 << 0)
64 #define SH_FSI_ACKMD_64		(4 << 0)
65 #define SH_FSI_ACKMD_32		(5 << 0)
66 
67 #define SH_FSI_BPFMD_MASK	(0xF << 4)
68 #define SH_FSI_BPFMD_512	(1 << 4)
69 #define SH_FSI_BPFMD_256	(2 << 4)
70 #define SH_FSI_BPFMD_128	(3 << 4)
71 #define SH_FSI_BPFMD_64		(4 << 4)
72 #define SH_FSI_BPFMD_32		(5 << 4)
73 #define SH_FSI_BPFMD_16		(6 << 4)
74 
75 struct sh_fsi_port_info {
76 	unsigned long flags;
77 	int tx_id;
78 	int rx_id;
79 	int (*set_rate)(struct device *dev, int rate, int enable);
80 };
81 
82 struct sh_fsi_platform_info {
83 	struct sh_fsi_port_info port_a;
84 	struct sh_fsi_port_info port_b;
85 };
86 
87 /*
88  * for fsi-ak4642
89  */
90 struct fsi_ak4642_info {
91 	const char *name;
92 	const char *card;
93 	const char *cpu_dai;
94 	const char *codec;
95 	const char *platform;
96 	int id;
97 };
98 
99 #endif /* __SOUND_FSI_H */
100