| Maurus Cuelenaere | ac67d70 | 2008-05-16 21:16:01 +0000 | [diff] [blame] | 1 | /***************************************************************************
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| 2 | * __________ __ ___.
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| 3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___
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| 4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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| 5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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| 6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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| 7 | * \/ \/ \/ \/ \/
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| 8 | * $Id$
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| 9 | *
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| 10 | * Copyright (C) 2008 by Catalin Patulea
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| 11 | *
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| Daniel Stenberg | 2acc0ac | 2008-06-28 18:10:04 +0000 | [diff] [blame^] | 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License |
| 14 | * as published by the Free Software Foundation; either version 2 |
| 15 | * of the License, or (at your option) any later version. |
| Maurus Cuelenaere | ac67d70 | 2008-05-16 21:16:01 +0000 | [diff] [blame] | 16 | *
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| 17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 18 | * KIND, either express or implied.
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| 19 | *
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| 20 | ****************************************************************************/
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| 21 |
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| 22 | #include "audio.h"
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| 23 | #include "registers.h"
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| 24 |
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| 25 | void audiohw_init(void)
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| 26 | {
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| 27 | /* Configure McBSP */
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| 28 | SPCR10 = 0; /* Receiver reset */
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| 29 | SPCR20 = 3 << 4; /* Rate gen disabled, RINT=XSYNCERR, TX disabled for now */
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| 30 | PCR0 = 1 << 1; /* Serial port pins, external frame sync, external clock,
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| 31 | frame sync FSX is active-high,
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| 32 | TX data sampled on falling clock */
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| 33 | XCR10 = 0x00a0; /* 1 word per frame, 32 bits per word */
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| 34 | XCR20 = 0; /* Single-phase, unexpected frame pulse restarts xfer,
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| 35 | 0-bit data delay */
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| 36 | }
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| 37 |
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| 38 | void audiohw_postinit(void)
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| 39 | {
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| 40 | /* Trigger first XEVT0 */
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| 41 | SPCR20 |= 1;
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| 42 | }
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