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cs4231reg.h revision 1.7
      1 /* $NetBSD: cs4231reg.h,v 1.7 1998/08/27 20:05:11 pk Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ken Hornstein and John Kohl.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *	  Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Register defs for Crystal Semiconductor CS4231 Audio Codec/mixer
     41  * chip, used on Gravis UltraSound MAX cards.
     42  *
     43  * Block diagram:
     44  *             +----------------------------------------------------+
     45  *             |						    |
     46  *             |   +----------------------------------------------+ |
     47  *	       |   |mixed in       +-+  		          | |
     48  *	       |   +------------>--| |  		          | |
     49  *             | mic in            | |			          | |
     50  *   Mic --+-->| --------- GAIN ->-| |			          | |
     51  *         |   | AUX 1 in          |M|				  | |
     52  *   GF1 --)-->| -------------+-->-|U|				  | |
     53  *	   |   | Line in      |	   |X|---- GAIN ----------+	  | |
     54  *  Line --)-->| ---------+---)-->-| |			  |	  | |
     55  *	   |   |	  |   |    | |			  |	  | |
     56  *	   |   |	  |   |    +-+		         ADC 	  | |
     57  *	   |   |	  |   |      		          | 	  | |
     58  *	   |   |	  |   |				  |	  | |
     59  *	   |   |	  |   +--- L/M --\		  |	  | | AMP-->
     60  *	   |   |	  |   	   	  \		  |	  | |  |
     61  *	   |   |	  |   	   	   \	          |	  | |  |
     62  *	   |   |	  +---- L/M -------O-->--+--------)-------+-|--+-> line
     63  *	   |   |   mono in	       	  /|     |        |	    |
     64  *	   +---|-->------------ L/M -----/ |     |        |	    |
     65  *	       |   AUX 2 in		   |     |        |	    |
     66  *  CD --------|-->------------ L/M -------+    L/M       |	    |
     67  *	       |				 |        v	    |
     68  *	       |				 |        |	    |
     69  *	       |				DAC       |	    |
     70  *	       |				 |        |	    |
     71  *             +----------------------------------------------------+
     72  *	       					 |        |
     73  *						 |        |
     74  *						 v        v
     75  *     	       	       	       	       	       	  Pc BUS (DISK) ???
     76  *
     77  */
     78 
     79 /* CS4231/AD1845 mode2 registers; added to AD1848 registers */
     80 #define CS_ALT_FEATURE1		16
     81 #define CS_ALT_FEATURE2		17
     82 #define CS_LEFT_LINE_CONTROL	18
     83 #define CS_RIGHT_LINE_CONTROL	19
     84 #define CS_TIMER_LOW		20
     85 #define CS_TIMER_HIGH		21
     86 #define CS_UPPER_FREQUENCY_SEL	22
     87 #define CS_LOWER_FREQUENCY_SEL	23
     88 #define CS_IRQ_STATUS		24
     89 #define CS_VERSION_ID		25
     90 #define CS_MONO_IO_CONTROL	26
     91 #define CS_POWERDOWN_CONTROL	27
     92 #define CS_REC_FORMAT		28
     93 #define CS_XTAL_SELECT		29
     94 #define CS_UPPER_REC_CNT	30
     95 #define CS_LOWER_REC_CNT	31
     96 
     97 /* ALT_FEATURE1 - register I16 */
     98 #define ALT_F1_DACZ		0x01	/* 1: hold sample during underrun */
     99 #define ALT_F1_SPE		0x02	/* 1: Serial port enable */
    100 #define ALT_F1_SFORMAT		0x06	/* Serial port format */
    101 #define ALT_F1_PMCE		0x10	/* Playback mode change enable */
    102 #define ALT_F1_CMCE		0x20	/* Capture mode change enable */
    103 #define ALT_F1_TE		0x40	/* Timer enable */
    104 #define ALT_F1_OLB		0x80	/* Output level bit */
    105 
    106 /* ALT_FEATURE2 - register I17 */
    107 #define ALT_F2_HPF		0x01	/* High pass filter */
    108 #define ALT_F2_XTALE		0x02	/* Crytal enable */
    109 #define ALT_F2_APAR		0x04	/* ADPCM playback accumulator reset */
    110 #define ALT_F2_RES		0x08	/* reserved */
    111 #define ALT_F2_TEST		0xf0	/* Factory test bits */
    112 
    113 /* LINE_CONTROL (LEFT & RIGHT) - register I18,I19 */
    114 #define LINE_INPUT_ATTEN_BITS	0x1f
    115 #define LINE_INPUT_ATTEN_MASK	0xe0
    116 #define LINE_INPUT_MUTE		0x80
    117 #define LINE_INPUT_MUTE_MASK	(~LINE_INPUT_MUTE & 0xff)
    118 
    119 /* ALT_FEATURE3 - register I23 */
    120 #define ALT_F3_ACF		0x01	/* ADPCM capture freeze */
    121 
    122 /* ALT_FEATURE_STATUS (aka CS_IRQ_STATUS) - register I24 */
    123 #define CS_IRQ_PU		0x01	/* Playback Underrun */
    124 #define CS_IRQ_PO		0x02	/* Playback Overrun */
    125 #define CS_IRQ_CO		0x04	/* Capture Overrun */
    126 #define CS_IRQ_CU		0x08	/* Capture Underrun */
    127 #define CS_IRQ_PI		0x10	/* Playback Interrupt */
    128 #define CS_IRQ_CI		0x20	/* Capture Interrupt */
    129 #define CS_IRQ_TI		0x40	/* Timer Interrupt */
    130 #define CS_IRQ_RES		0x80	/* reserved */
    131 
    132 #define CS_I24_BITS		"\20\1PU\2PO\3CO\4CU\5PI\6CI\7TI"
    133 
    134 /* VERSION - register I25 */
    135 #define CS_VERSION_NUMBER	0xe0	/* Version number:
    136 					 *	0x101 - 4231 rev. A
    137 					 *	0x100 - 4231 previous revs
    138 					 */
    139 #define CS_VERSION_CHIPID	0x07	/* Chip Identification.
    140 					 * Currently know values: 0x000
    141 					 */
    142 
    143 /* MONO_IO_CONTROL - register I26 */
    144 #define MONO_INPUT_ATTEN_BITS	0x0f
    145 #define MONO_INPUT_ATTEN_MASK	0xf0
    146 #define MONO_BYPASS		0x20
    147 #define MONO_OUTPUT_MUTE	0x40
    148 #define MONO_OUTPUT_MUTE_MASK	(~MONO_OUTPUT_MUTE & 0xff)
    149 #define MONO_INPUT_MUTE		0x80
    150 #define MONO_INPUT_MUTE_MASK	(~MONO_INPUT_MUTE & 0xff)
    151 
    152 /* CS_REC_FORMAT - register I28 */
    153 #define REC_FMT_reserved	0x0f	/* reserved */
    154 #define REC_FMT_SM		0x10	/* 0: mono, 1: stereo */
    155 #define REC_FMT_CL		0x20	/* 0: linear, 1: companded */
    156 #define REC_FMT_FMT0		0x40	/* See register I8 for valid */
    157 #define REC_FMT_FMT1		0x80	/* combination of the FMT and CL bits */
    158