/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Register definitions for Atmel AC97C
 *
 * Copyright (C) 2005-2009 Atmel Corporation
 */
#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 */