tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 * 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
79struct sh_fsi_port_info {
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
86struct sh_fsi_platform_info {
87 struct sh_fsi_port_info port_a;
88 struct sh_fsi_port_info port_b;
89};
90
91#endif /* __SOUND_FSI_H */