root/sys/arch/macppc/dev/i2sreg.h
/* $OpenBSD: i2sreg.h,v 1.3 2011/06/07 16:29:51 mpi Exp $ */
/*-
 * Copyright (c) 2002 Tsubai Masanari.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/* I2S registers */
#define I2S_INT         0x00
#define I2S_FORMAT      0x10
#define I2S_FRAMECOUNT  0x40
#define I2S_FRAMEMATCH  0x50
#define I2S_WORDSIZE    0x60

/* I2S_INT register definitions */
#define I2SClockOffset          0x3c
#define I2S_INT_CLKSTOPPEND     0x01000000

#define I2S_SELECT_SPEAKER      1 << 0
#define I2S_SELECT_HEADPHONE    1 << 1
#define I2S_SELECT_LINEOUT      1 << 2

/* FCR(0x3c) bits */
#define I2S0CLKEN       0x1000
#define I2S0EN          0x2000
#define I2S1CLKEN       0x080000
#define I2S1EN          0x100000


#define CLKSRC_49MHz    0x80000000      /* Use 49152000Hz Osc. */
#define CLKSRC_45MHz    0x40000000      /* Use 45158400Hz Osc. */
#define CLKSRC_18MHz    0x00000000      /* Use 18432000Hz Osc. */
#define CLKSRC_VS       0x01fa0000      /* Magic value of xserve vu-meter */
#define MCLK_DIV        0x1f000000      /* MCLK = SRC / DIV */
#define  MCLK_DIV1      0x14000000      /*  MCLK = SRC */
#define  MCLK_DIV3      0x13000000      /*  MCLK = SRC / 3 */
#define  MCLK_DIV5      0x12000000      /*  MCLK = SRC / 5 */
#define SCLK_DIV        0x00f00000      /* SCLK = MCLK / DIV */
#define  SCLK_DIV1      0x00800000
#define  SCLK_DIV3      0x00900000
#define SCLK_MASTER     0x00080000      /* Master mode */
#define SCLK_SLAVE      0x00000000      /* Slave mode */
#define SERIAL_FORMAT   0x00070000
#define  SERIAL_SONY    0x00000000
#define  SERIAL_64x     0x00010000
#define  SERIAL_32x     0x00020000
#define  SERIAL_DAV     0x00040000
#define  SERIAL_SILICON 0x00050000