FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/cs4215reg.h

     /*      $NetBSD: cs4215reg.h,v 1.2 2005/12/11 12:21:26 christos Exp $   */
     
     /*
      * Copyright (c) 2001 Jared D. McNeill <jmcneill@invisible.yi.org>
      * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Jared D. McNeill.
     * 4. Neither the name of the author nor the names of any contributors may
     *    be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
     *
     */
    
    /* time slot 1: status register */
    #define CS4215_CLB      (1<<2)  /* control latch bit */
    #define CS4215_MLB      (1<<4)  /* 1: mic: 20 dB gain disabled */
    #define CS4215_RSRVD_1  (1<<5)
    
    /* time slot 2: data format register */
    #define CS4215_DFR_LINEAR16     0
    #define CS4215_DFR_ULAW         1
    #define CS4215_DFR_ALAW         2
    #define CS4215_DFR_LINEAR8      3
    #define CS4215_DFR_STEREO       (1<<2)
    const struct {
            unsigned short  freq;
            unsigned char   xtal;
            unsigned char   csval;
    } CS4215_FREQ[] = {
            { 8000,         (1<<4), (0<<3) },
            { 16000,        (1<<4), (1<<3) },
            { 27429,        (1<<4), (2<<3) },       /* actually 24428.57 */
            { 32000,        (1<<4), (3<<3) },
                    /* NA           (4<<3) */
                    /* NA           (5<<3) */
            { 48000,        (1<<4), (6<<3) },
            { 9600,         (1<<4), (7<<3) },
            { 5513,         (2<<4), (0<<3) },       /* actually 5512.5 */
            { 11025,        (2<<4), (1<<3) },
            { 18900,        (2<<4), (2<<3) },
            { 22050,        (2<<4), (3<<3) },
            { 37800,        (2<<4), (4<<3) },
            { 44100,        (2<<4), (5<<3) },
            { 33075,        (2<<4), (6<<3) },
            { 6615,         (2<<4), (7<<3) },
            { 0,            0,      0 }
    };
    
    /* time slot 3: serial port control register */
    #define CS4215_XCLK     (1<<1)          /* 0: enable serial output */
    #define CS4215_BSEL_128 (1<<2)          /* bitrate: 128 bits per frame */
    
    /* time slot 5: output setting */
    #define CS4215_LO(v)    v       /* left output attenuation 0x3f: -94.5 dB */
    #define CS4215_LE       (1<<6)  /* line out enable */
    #define CS4215_HE       (1<<7)  /* headphone enable */
    
    /* time slot 6: output setting */
    #define CS4215_RO(v)    v       /* right output attenuation 0x3f: -94.5 dB */
    #define CS4215_SE       (1<<6)  /* speaker enable */
    #define CS4215_ADI      (1<<7)  /* a/d data invalid: busy in calibration */
    
    /* time slot 7: input setting */
    #define CS4215_LG(v)    v       /* left gain setting 0xf: 22.5 dB */
    #define CS4215_IS       (1<<4)  /* input select: 1 = mic, 0 = line */
    #define CS4215_PIO0     (1<<6)  /* parallel I/O 0 */
    #define CS4215_PIO1     (1<<7)  /* parallel I/O 1 */
    
    /* time slot 8: input setting */
    #define CS4215_RG(v)    v       /* right gain setting 0xf: 22.5 dB */
    #define CS4215_MA(v)    (v<<4)  /* monitor path attenuation 0xf: mute */
    

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