Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
tegra20_i2s.h
Go to the documentation of this file.
1 /*
2  * tegra20_i2s.h - Definitions for Tegra20 I2S driver
3  *
4  * Author: Stephen Warren <[email protected]>
5  * Copyright (C) 2010,2012 - NVIDIA, Inc.
6  *
7  * Based on code copyright/by:
8  *
9  * Copyright (c) 2009-2010, NVIDIA Corporation.
10  * Scott Peterson <[email protected]>
11  *
12  * Copyright (C) 2010 Google, Inc.
13  * Iliyan Malchev <[email protected]>
14  *
15  * This program is free software; you can redistribute it and/or
16  * modify it under the terms of the GNU General Public License
17  * version 2 as published by the Free Software Foundation.
18  *
19  * This program is distributed in the hope that it will be useful, but
20  * WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * General Public License for more details.
23  *
24  * You should have received a copy of the GNU General Public License
25  * along with this program; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
27  * 02110-1301 USA
28  *
29  */
30 
31 #ifndef __TEGRA20_I2S_H__
32 #define __TEGRA20_I2S_H__
33 
34 #include "tegra_pcm.h"
35 
36 /* Register offsets from TEGRA20_I2S1_BASE and TEGRA20_I2S2_BASE */
37 
38 #define TEGRA20_I2S_CTRL 0x00
39 #define TEGRA20_I2S_STATUS 0x04
40 #define TEGRA20_I2S_TIMING 0x08
41 #define TEGRA20_I2S_FIFO_SCR 0x0c
42 #define TEGRA20_I2S_PCM_CTRL 0x10
43 #define TEGRA20_I2S_NW_CTRL 0x14
44 #define TEGRA20_I2S_TDM_CTRL 0x20
45 #define TEGRA20_I2S_TDM_TX_RX_CTRL 0x24
46 #define TEGRA20_I2S_FIFO1 0x40
47 #define TEGRA20_I2S_FIFO2 0x80
48 
49 /* Fields in TEGRA20_I2S_CTRL */
50 
51 #define TEGRA20_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30)
52 #define TEGRA20_I2S_CTRL_FIFO1_ENABLE (1 << 29)
53 #define TEGRA20_I2S_CTRL_FIFO2_ENABLE (1 << 28)
54 #define TEGRA20_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27)
55 #define TEGRA20_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26)
56 #define TEGRA20_I2S_CTRL_MASTER_ENABLE (1 << 25)
57 
58 #define TEGRA20_I2S_LRCK_LEFT_LOW 0
59 #define TEGRA20_I2S_LRCK_RIGHT_LOW 1
60 
61 #define TEGRA20_I2S_CTRL_LRCK_SHIFT 24
62 #define TEGRA20_I2S_CTRL_LRCK_MASK (1 << TEGRA20_I2S_CTRL_LRCK_SHIFT)
63 #define TEGRA20_I2S_CTRL_LRCK_L_LOW (TEGRA20_I2S_LRCK_LEFT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT)
64 #define TEGRA20_I2S_CTRL_LRCK_R_LOW (TEGRA20_I2S_LRCK_RIGHT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT)
65 
66 #define TEGRA20_I2S_BIT_FORMAT_I2S 0
67 #define TEGRA20_I2S_BIT_FORMAT_RJM 1
68 #define TEGRA20_I2S_BIT_FORMAT_LJM 2
69 #define TEGRA20_I2S_BIT_FORMAT_DSP 3
70 
71 #define TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT 10
72 #define TEGRA20_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT)
73 #define TEGRA20_I2S_CTRL_BIT_FORMAT_I2S (TEGRA20_I2S_BIT_FORMAT_I2S << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT)
74 #define TEGRA20_I2S_CTRL_BIT_FORMAT_RJM (TEGRA20_I2S_BIT_FORMAT_RJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT)
75 #define TEGRA20_I2S_CTRL_BIT_FORMAT_LJM (TEGRA20_I2S_BIT_FORMAT_LJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT)
76 #define TEGRA20_I2S_CTRL_BIT_FORMAT_DSP (TEGRA20_I2S_BIT_FORMAT_DSP << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT)
77 
78 #define TEGRA20_I2S_BIT_SIZE_16 0
79 #define TEGRA20_I2S_BIT_SIZE_20 1
80 #define TEGRA20_I2S_BIT_SIZE_24 2
81 #define TEGRA20_I2S_BIT_SIZE_32 3
82 
83 #define TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT 8
84 #define TEGRA20_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT)
85 #define TEGRA20_I2S_CTRL_BIT_SIZE_16 (TEGRA20_I2S_BIT_SIZE_16 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT)
86 #define TEGRA20_I2S_CTRL_BIT_SIZE_20 (TEGRA20_I2S_BIT_SIZE_20 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT)
87 #define TEGRA20_I2S_CTRL_BIT_SIZE_24 (TEGRA20_I2S_BIT_SIZE_24 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT)
88 #define TEGRA20_I2S_CTRL_BIT_SIZE_32 (TEGRA20_I2S_BIT_SIZE_32 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT)
89 
90 #define TEGRA20_I2S_FIFO_16_LSB 0
91 #define TEGRA20_I2S_FIFO_20_LSB 1
92 #define TEGRA20_I2S_FIFO_24_LSB 2
93 #define TEGRA20_I2S_FIFO_32 3
94 #define TEGRA20_I2S_FIFO_PACKED 7
95 
96 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT 4
97 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
98 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA20_I2S_FIFO_16_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
99 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA20_I2S_FIFO_20_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
100 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA20_I2S_FIFO_24_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
101 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_32 (TEGRA20_I2S_FIFO_32 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
102 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA20_I2S_FIFO_PACKED << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT)
103 
104 #define TEGRA20_I2S_CTRL_IE_FIFO1_ERR (1 << 3)
105 #define TEGRA20_I2S_CTRL_IE_FIFO2_ERR (1 << 2)
106 #define TEGRA20_I2S_CTRL_QE_FIFO1 (1 << 1)
107 #define TEGRA20_I2S_CTRL_QE_FIFO2 (1 << 0)
108 
109 /* Fields in TEGRA20_I2S_STATUS */
110 
111 #define TEGRA20_I2S_STATUS_FIFO1_RDY (1 << 31)
112 #define TEGRA20_I2S_STATUS_FIFO2_RDY (1 << 30)
113 #define TEGRA20_I2S_STATUS_FIFO1_BSY (1 << 29)
114 #define TEGRA20_I2S_STATUS_FIFO2_BSY (1 << 28)
115 #define TEGRA20_I2S_STATUS_FIFO1_ERR (1 << 3)
116 #define TEGRA20_I2S_STATUS_FIFO2_ERR (1 << 2)
117 #define TEGRA20_I2S_STATUS_QS_FIFO1 (1 << 1)
118 #define TEGRA20_I2S_STATUS_QS_FIFO2 (1 << 0)
119 
120 /* Fields in TEGRA20_I2S_TIMING */
121 
122 #define TEGRA20_I2S_TIMING_NON_SYM_ENABLE (1 << 12)
123 #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0
124 #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff
125 #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT)
126 
127 /* Fields in TEGRA20_I2S_FIFO_SCR */
128 
129 #define TEGRA20_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24
130 #define TEGRA20_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16
131 #define TEGRA20_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f
132 
133 #define TEGRA20_I2S_FIFO_SCR_FIFO2_CLR (1 << 12)
134 #define TEGRA20_I2S_FIFO_SCR_FIFO1_CLR (1 << 8)
135 
136 #define TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT 0
137 #define TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1
138 #define TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2
139 #define TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3
140 
141 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4
142 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
143 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
144 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
145 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
146 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT)
147 
148 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0
149 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
150 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
151 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
152 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
153 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT)
154 
155 struct tegra20_i2s {
156  struct snd_soc_dai_driver dai;
157  struct clk *clk_i2s;
158  struct tegra_pcm_dma_params capture_dma_data;
159  struct tegra_pcm_dma_params playback_dma_data;
160  struct regmap *regmap;
161 };
162 
163 #endif
Generated on Thu Jan 10 2013 15:08:35 for Linux Kernel by   doxygen 1.8.2