blob: beba38597015f2e7716b29cccbf90981c7cdcf9a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#ifndef CODEC_H
#define CODEC_H
#include "es1371.h"
#include "wait.h"
#include "../AC97.h"
#include "SRC.h"
#define CODEC_0DB_GAIN 0x0008
#define CODEC_MAX_ATTN 0x003f
#define CODEC_MUTE 0x8000U
/* Control function defines */
#define CODEC_CTL_4SPKR 0x00U /* 4-spkr output mode enable */
#define CODEC_CTL_MICBOOST 0x01U /* Mic boost (+30 dB) enable */
#define CODEC_CTL_PWRDOWN 0x02U /* power-down mode */
#define CODEC_CTL_DOSMODE 0x03U /* A/D sync to DAC1 */
/* Timeout waiting for: */
#define CODEC_ERR_WIP_TIMEOUT -1 /* write in progress complete */
#define CODEC_ERR_DATA_TIMEOUT -2 /* data ready */
#define CODEC_ERR_SRC_NOT_BUSY_TIMEOUT -3 /* SRC not busy */
#define CODEC_ERR_SRC_SYNC_TIMEOUT -4 /* state #1 */
/* Function to inform CODEC module which AC97 vendor ID to expect */
void CodecSetVendorId (char *tbuf);
/* CODEC Mixer and Mode control function prototypes */
int CodecRead (DEV_STRUCT * pCC, u16_t wAddr, u16_t *data);
int CodecWrite (DEV_STRUCT * pCC, u16_t wAddr, u16_t wData);
void CodecSetSrcSyncState (int state);
int CodecWriteUnsynced (DEV_STRUCT * pCC, u16_t wAddr, u16_t wData);
int CodecReadUnsynced (DEV_STRUCT * pCC, u16_t wAddr, u16_t *data);
/*
This function initializes the CODEC to a default mode.
*/
int CODECInit( DEV_STRUCT * pCC );
#endif /* CODEC_H */
|
