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sh_fsi.h
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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 <[email protected]>
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  * 0x00000CBA
25  *
26  * A: inversion
27  * B: format mode
28  * C: chip specific
29  */
30 
31 /* A: clock inversion */
32 #define SH_FSI_INVERSION_MASK 0x0000000F
33 #define SH_FSI_LRM_INV (1 << 0)
34 #define SH_FSI_BRM_INV (1 << 1)
35 #define SH_FSI_LRS_INV (1 << 2)
36 #define SH_FSI_BRS_INV (1 << 3)
37 
38 /* B: format mode */
39 #define SH_FSI_FMT_MASK 0x000000F0
40 #define SH_FSI_FMT_DAI (0 << 4)
41 #define SH_FSI_FMT_SPDIF (1 << 4)
42 
43 /* C: chip specific */
44 #define SH_FSI_OPTION_MASK 0x00000F00
45 #define SH_FSI_ENABLE_STREAM_MODE (1 << 8) /* for 16bit data */
46 
47 /*
48  * set_rate return value
49  *
50  * see ACKMD/BPFMD on
51  * ACK_MD (FSI2)
52  * CKG1 (FSI)
53  *
54  * err : return value < 0
55  * no change : return value == 0
56  * change xMD : return value > 0
57  *
58  * 0x-00000AB
59  *
60  * A: ACKMD value
61  * B: BPFMD value
62  */
63 
64 #define SH_FSI_ACKMD_MASK (0xF << 0)
65 #define SH_FSI_ACKMD_512 (1 << 0)
66 #define SH_FSI_ACKMD_256 (2 << 0)
67 #define SH_FSI_ACKMD_128 (3 << 0)
68 #define SH_FSI_ACKMD_64 (4 << 0)
69 #define SH_FSI_ACKMD_32 (5 << 0)
70 
71 #define SH_FSI_BPFMD_MASK (0xF << 4)
72 #define SH_FSI_BPFMD_512 (1 << 4)
73 #define SH_FSI_BPFMD_256 (2 << 4)
74 #define SH_FSI_BPFMD_128 (3 << 4)
75 #define SH_FSI_BPFMD_64 (4 << 4)
76 #define SH_FSI_BPFMD_32 (5 << 4)
77 #define SH_FSI_BPFMD_16 (6 << 4)
78 
80  unsigned long flags;
81  int tx_id;
82  int rx_id;
83  int (*set_rate)(struct device *dev, int rate, int enable);
84 };
85 
89 };
90 
91 #endif /* __SOUND_FSI_H */