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ac97c.h

/*
 * Register definitions for Atmel AC97C
 *
 * Copyright (C) 2005-2009 Atmel Corporation
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 */
#ifndef __SOUND_ATMEL_AC97C_H
#define __SOUND_ATMEL_AC97C_H

#define AC97C_MR        0x08
#define AC97C_ICA       0x10
#define AC97C_OCA       0x14
#define AC97C_CARHR           0x20
#define AC97C_CATHR           0x24
#define AC97C_CASR            0x28
#define AC97C_CAMR            0x2c
#define AC97C_CORHR           0x40
#define AC97C_COTHR           0x44
#define AC97C_COSR            0x48
#define AC97C_COMR            0x4c
#define AC97C_SR        0x50
#define AC97C_IER       0x54
#define AC97C_IDR       0x58
#define AC97C_IMR       0x5c
#define AC97C_VERSION         0xfc

#define AC97C_CATPR           PDC_TPR
#define AC97C_CATCR           PDC_TCR
#define AC97C_CATNPR          PDC_TNPR
#define AC97C_CATNCR          PDC_TNCR
#define AC97C_CARPR           PDC_RPR
#define AC97C_CARCR           PDC_RCR
#define AC97C_CARNPR          PDC_RNPR
#define AC97C_CARNCR          PDC_RNCR
#define AC97C_PTCR            PDC_PTCR

#define AC97C_MR_ENA          (1 << 0)
#define AC97C_MR_WRST         (1 << 1)
#define AC97C_MR_VRA          (1 << 2)

#define AC97C_CSR_TXRDY       (1 << 0)
#define AC97C_CSR_TXEMPTY     (1 << 1)
#define AC97C_CSR_UNRUN       (1 << 2)
#define AC97C_CSR_RXRDY       (1 << 4)
#define AC97C_CSR_OVRUN       (1 << 5)
#define AC97C_CSR_ENDTX       (1 << 10)
#define AC97C_CSR_ENDRX       (1 << 14)

#define AC97C_CMR_SIZE_20     (0 << 16)
#define AC97C_CMR_SIZE_18     (1 << 16)
#define AC97C_CMR_SIZE_16     (2 << 16)
#define AC97C_CMR_SIZE_10     (3 << 16)
#define AC97C_CMR_CEM_LITTLE  (1 << 18)
#define AC97C_CMR_CEM_BIG     (0 << 18)
#define AC97C_CMR_CENA        (1 << 21)
#define AC97C_CMR_DMAEN       (1 << 22)

#define AC97C_SR_CAEVT        (1 << 3)
#define AC97C_SR_COEVT        (1 << 2)
#define AC97C_SR_WKUP         (1 << 1)
#define AC97C_SR_SOF          (1 << 0)

#define AC97C_CH_MASK(slot)                                 \
      (0x7 << (3 * (AC97_SLOT_##slot - 3)))
#define AC97C_CH_ASSIGN(slot, channel)                            \
      (AC97C_CHANNEL_##channel << (3 * (AC97_SLOT_##slot - 3)))
#define AC97C_CHANNEL_NONE    0x0
#define AC97C_CHANNEL_A       0x1

#endif /* __SOUND_ATMEL_AC97C_H */

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