RTEMS
6.1-rc2
Loading...
Searching...
No Matches
bsps
arm
include
bsp
lpc-i2s.h
Go to the documentation of this file.
1
/* SPDX-License-Identifier: BSD-2-Clause */
2
11
/*
12
* Copyright (c) 2010 embedded brains GmbH & Co. KG
13
*
14
* Redistribution and use in source and binary forms, with or without
15
* modification, are permitted provided that the following conditions
16
* are met:
17
* 1. Redistributions of source code must retain the above copyright
18
* notice, this list of conditions and the following disclaimer.
19
* 2. Redistributions in binary form must reproduce the above copyright
20
* notice, this list of conditions and the following disclaimer in the
21
* documentation and/or other materials provided with the distribution.
22
*
23
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
27
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33
* POSSIBILITY OF SUCH DAMAGE.
34
*/
35
36
#ifndef LIBBSP_ARM_SHARED_LPC_I2S_H
37
#define LIBBSP_ARM_SHARED_LPC_I2S_H
38
39
#include <
bsp/utility.h
>
40
41
#ifdef __cplusplus
42
extern
"C"
{
43
#endif
44
59
typedef
struct
{
60
uint32_t dao;
61
uint32_t dai;
62
uint32_t txfifo;
63
uint32_t rxfifo;
64
uint32_t state;
65
uint32_t dma [2];
66
uint32_t irq;
67
uint32_t txrate;
68
uint32_t rxrate;
69
}
lpc_i2s
;
70
77
#define I2S_DAIO_WORDWIDTH(val) BSP_FLD32(val, 0, 1)
78
#define I2S_DAIO_MONO BSP_BIT32(2)
79
#define I2S_DAIO_STOP BSP_BIT32(3)
80
#define I2S_DAIO_RESET BSP_BIT32(4)
81
#define I2S_DAIO_WS_SEL BSP_BIT32(5)
82
#define I2S_DAIO_WS_HALFPERIOD(val) BSP_FLD32(val, 6, 14)
83
#define I2S_DAIO_MUTE BSP_BIT32(15)
84
93
#define I2S_STATE_IRQ BSP_BIT32(0)
94
#define I2S_STATE_DMAREQ_0 BSP_BIT32(1)
95
#define I2S_STATE_DMAREQ_1 BSP_BIT32(2)
96
#define I2S_STATE_RX_LEVEL_GET(reg) BSP_FLD32GET(reg, 8, 11)
97
#define I2S_STATE_TX_LEVEL_GET(reg) BSP_FLD32GET(reg, 16, 19)
98
107
#define I2S_DMA_RX_ENABLE BSP_BIT32(0)
108
#define I2S_DMA_TX_ENABLE BSP_BIT32(1)
109
#define I2S_DMA_RX_DEPTH(val) BSP_FLD32(val, 8, 11)
110
#define I2S_DMA_TX_DEPTH(val) BSP_FLD32(val, 16, 19)
111
120
#define I2S_IRQ_RX BSP_BIT32(0)
121
#define I2S_IRQ_TX BSP_BIT32(1)
122
#define I2S_IRQ_RX_DEPTH(val) BSP_FLD32(val, 8, 11)
123
#define I2S_IRQ_TX_DEPTH(val) BSP_FLD32(val, 16, 19)
124
133
#define LPC24XX_I2S_RATE(val) BSP_FLD32(val, 0, 9)
134
#define LPC32XX_I2S_RATE_X_DIVIDER(val) BSP_FLD32(val, 0, 7)
135
#define LPC32XX_I2S_RATE_Y_DIVIDER(val) BSP_FLD32(val, 8, 15)
136
141
#ifdef __cplusplus
142
}
143
#endif
/* __cplusplus */
144
145
#endif
/* LIBBSP_ARM_SHARED_LPC_I2S_H */
utility.h
This header file provides utility macros for BSPs.
lpc_i2s
I2S control block.
Definition:
lpc-i2s.h:59
Generated by
1.9.6