44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
#ifndef CODEC_H
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#define CODEC_H
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#include "es1371.h"
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#include "wait.h"
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#include "../AC97.h"
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#include "SRC.h"
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#define CODEC_0DB_GAIN 0x0008
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#define CODEC_MAX_ATTN 0x003f
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#define CODEC_MUTE 0x8000U
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/* Control function defines */
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#define CODEC_CTL_4SPKR 0x00U /* 4-spkr output mode enable */
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#define CODEC_CTL_MICBOOST 0x01U /* Mic boost (+30 dB) enable */
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#define CODEC_CTL_PWRDOWN 0x02U /* power-down mode */
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#define CODEC_CTL_DOSMODE 0x03U /* A/D sync to DAC1 */
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/* Timeout waiting for: */
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#define CODEC_ERR_WIP_TIMEOUT -1 /* write in progress complete */
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#define CODEC_ERR_DATA_TIMEOUT -2 /* data ready */
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#define CODEC_ERR_SRC_NOT_BUSY_TIMEOUT -3 /* SRC not busy */
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#define CODEC_ERR_SRC_SYNC_TIMEOUT -4 /* state #1 */
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/* Function to inform CODEC module which AC97 vendor ID to expect */
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void CodecSetVendorId (char *tbuf);
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/* CODEC Mixer and Mode control function prototypes */
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int CodecRead (DEV_STRUCT * pCC, u16_t wAddr, u16_t *data);
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int CodecWrite (DEV_STRUCT * pCC, u16_t wAddr, u16_t wData);
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void CodecSetSrcSyncState (int state);
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int CodecWriteUnsynced (DEV_STRUCT * pCC, u16_t wAddr, u16_t wData);
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int CodecReadUnsynced (DEV_STRUCT * pCC, u16_t wAddr, u16_t *data);
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/*
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This function initializes the CODEC to a default mode.
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*/
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int CODECInit( DEV_STRUCT * pCC );
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#endif /* CODEC_H */
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