/*

   * 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 */