ac97c.h

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/*
 * 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 */