xref: /openbmc/linux/sound/soc/mxs/mxs-saif.h (revision 16216333)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
4  */
5 
6 
7 #ifndef _MXS_SAIF_H
8 #define _MXS_SAIF_H
9 
10 #define SAIF_CTRL	0x0
11 #define SAIF_STAT	0x10
12 #define SAIF_DATA	0x20
13 #define SAIF_VERSION	0X30
14 
15 /* SAIF_CTRL */
16 #define BM_SAIF_CTRL_SFTRST		0x80000000
17 #define BM_SAIF_CTRL_CLKGATE		0x40000000
18 #define BP_SAIF_CTRL_BITCLK_MULT_RATE	27
19 #define BM_SAIF_CTRL_BITCLK_MULT_RATE	0x38000000
20 #define BF_SAIF_CTRL_BITCLK_MULT_RATE(v) \
21 		(((v) << 27) & BM_SAIF_CTRL_BITCLK_MULT_RATE)
22 #define BM_SAIF_CTRL_BITCLK_BASE_RATE	0x04000000
23 #define BM_SAIF_CTRL_FIFO_ERROR_IRQ_EN	0x02000000
24 #define BM_SAIF_CTRL_FIFO_SERVICE_IRQ_EN	0x01000000
25 #define BP_SAIF_CTRL_RSRVD2		21
26 #define BM_SAIF_CTRL_RSRVD2		0x00E00000
27 
28 #define BP_SAIF_CTRL_DMAWAIT_COUNT	16
29 #define BM_SAIF_CTRL_DMAWAIT_COUNT	0x001F0000
30 #define BF_SAIF_CTRL_DMAWAIT_COUNT(v) \
31 		(((v) << 16) & BM_SAIF_CTRL_DMAWAIT_COUNT)
32 #define BP_SAIF_CTRL_CHANNEL_NUM_SELECT 14
33 #define BM_SAIF_CTRL_CHANNEL_NUM_SELECT 0x0000C000
34 #define BF_SAIF_CTRL_CHANNEL_NUM_SELECT(v) \
35 		(((v) << 14) & BM_SAIF_CTRL_CHANNEL_NUM_SELECT)
36 #define BM_SAIF_CTRL_LRCLK_PULSE	0x00002000
37 #define BM_SAIF_CTRL_BIT_ORDER		0x00001000
38 #define BM_SAIF_CTRL_DELAY		0x00000800
39 #define BM_SAIF_CTRL_JUSTIFY		0x00000400
40 #define BM_SAIF_CTRL_LRCLK_POLARITY	0x00000200
41 #define BM_SAIF_CTRL_BITCLK_EDGE	0x00000100
42 #define BP_SAIF_CTRL_WORD_LENGTH	4
43 #define BM_SAIF_CTRL_WORD_LENGTH	0x000000F0
44 #define BF_SAIF_CTRL_WORD_LENGTH(v) \
45 		(((v) << 4) & BM_SAIF_CTRL_WORD_LENGTH)
46 #define BM_SAIF_CTRL_BITCLK_48XFS_ENABLE	0x00000008
47 #define BM_SAIF_CTRL_SLAVE_MODE		0x00000004
48 #define BM_SAIF_CTRL_READ_MODE		0x00000002
49 #define BM_SAIF_CTRL_RUN		0x00000001
50 
51 /* SAIF_STAT */
52 #define BM_SAIF_STAT_PRESENT		0x80000000
53 #define BP_SAIF_STAT_RSRVD2		17
54 #define BM_SAIF_STAT_RSRVD2		0x7FFE0000
55 #define BF_SAIF_STAT_RSRVD2(v) \
56 		(((v) << 17) & BM_SAIF_STAT_RSRVD2)
57 #define BM_SAIF_STAT_DMA_PREQ		0x00010000
58 #define BP_SAIF_STAT_RSRVD1		7
59 #define BM_SAIF_STAT_RSRVD1		0x0000FF80
60 #define BF_SAIF_STAT_RSRVD1(v) \
61 		(((v) << 7) & BM_SAIF_STAT_RSRVD1)
62 
63 #define BM_SAIF_STAT_FIFO_UNDERFLOW_IRQ 0x00000040
64 #define BM_SAIF_STAT_FIFO_OVERFLOW_IRQ	0x00000020
65 #define BM_SAIF_STAT_FIFO_SERVICE_IRQ	0x00000010
66 #define BP_SAIF_STAT_RSRVD0		1
67 #define BM_SAIF_STAT_RSRVD0		0x0000000E
68 #define BF_SAIF_STAT_RSRVD0(v) \
69 		(((v) << 1) & BM_SAIF_STAT_RSRVD0)
70 #define BM_SAIF_STAT_BUSY		0x00000001
71 
72 /* SAFI_DATA */
73 #define BP_SAIF_DATA_PCM_RIGHT		16
74 #define BM_SAIF_DATA_PCM_RIGHT		0xFFFF0000
75 #define BF_SAIF_DATA_PCM_RIGHT(v) \
76 		(((v) << 16) & BM_SAIF_DATA_PCM_RIGHT)
77 #define BP_SAIF_DATA_PCM_LEFT		0
78 #define BM_SAIF_DATA_PCM_LEFT		0x0000FFFF
79 #define BF_SAIF_DATA_PCM_LEFT(v)	\
80 		(((v) << 0) & BM_SAIF_DATA_PCM_LEFT)
81 
82 /* SAIF_VERSION */
83 #define BP_SAIF_VERSION_MAJOR		24
84 #define BM_SAIF_VERSION_MAJOR		0xFF000000
85 #define BF_SAIF_VERSION_MAJOR(v) \
86 		(((v) << 24) & BM_SAIF_VERSION_MAJOR)
87 #define BP_SAIF_VERSION_MINOR		16
88 #define BM_SAIF_VERSION_MINOR		0x00FF0000
89 #define BF_SAIF_VERSION_MINOR(v) \
90 		(((v) << 16) & BM_SAIF_VERSION_MINOR)
91 #define BP_SAIF_VERSION_STEP		0
92 #define BM_SAIF_VERSION_STEP		0x0000FFFF
93 #define BF_SAIF_VERSION_STEP(v) \
94 		(((v) << 0) & BM_SAIF_VERSION_STEP)
95 
96 #define MXS_SAIF_MCLK		0
97 
98 #include "mxs-pcm.h"
99 
100 struct mxs_saif {
101 	struct device *dev;
102 	struct clk *clk;
103 	unsigned int mclk;
104 	unsigned int mclk_in_use;
105 	void __iomem *base;
106 	unsigned int id;
107 	unsigned int master_id;
108 	unsigned int cur_rate;
109 	unsigned int ongoing;
110 
111 	u32 fifo_underrun;
112 	u32 fifo_overrun;
113 
114 	enum {
115 		MXS_SAIF_STATE_STOPPED,
116 		MXS_SAIF_STATE_RUNNING,
117 	} state;
118 };
119 
120 extern int mxs_saif_put_mclk(unsigned int saif_id);
121 extern int mxs_saif_get_mclk(unsigned int saif_id, unsigned int mclk,
122 					unsigned int rate);
123 #endif
124