1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef __SOUND_CS4231_REGS_H
3#define __SOUND_CS4231_REGS_H
4
5/*
6 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
7 *  Definitions for CS4231 & InterWave chips & compatible chips registers
8 */
9
10/* IO ports */
11
12#define CS4231P(x)		(c_d_c_CS4231##x)
13
14#define c_d_c_CS4231REGSEL	0
15#define c_d_c_CS4231REG		1
16#define c_d_c_CS4231STATUS	2
17#define c_d_c_CS4231PIO		3
18
19/* codec registers */
20
21#define CS4231_LEFT_INPUT	0x00	/* left input control */
22#define CS4231_RIGHT_INPUT	0x01	/* right input control */
23#define CS4231_AUX1_LEFT_INPUT	0x02	/* left AUX1 input control */
24#define CS4231_AUX1_RIGHT_INPUT	0x03	/* right AUX1 input control */
25#define CS4231_AUX2_LEFT_INPUT	0x04	/* left AUX2 input control */
26#define CS4231_AUX2_RIGHT_INPUT	0x05	/* right AUX2 input control */
27#define CS4231_LEFT_OUTPUT	0x06	/* left output control register */
28#define CS4231_RIGHT_OUTPUT	0x07	/* right output control register */
29#define CS4231_PLAYBK_FORMAT	0x08	/* clock and data format - playback - bits 7-0 MCE */
30#define CS4231_IFACE_CTRL	0x09	/* interface control - bits 7-2 MCE */
31#define CS4231_PIN_CTRL		0x0a	/* pin control */
32#define CS4231_TEST_INIT	0x0b	/* test and initialization */
33#define CS4231_MISC_INFO	0x0c	/* miscellaneous information */
34#define CS4231_LOOPBACK		0x0d	/* loopback control */
35#define CS4231_PLY_UPR_CNT	0x0e	/* playback upper base count */
36#define CS4231_PLY_LWR_CNT	0x0f	/* playback lower base count */
37#define CS4231_ALT_FEATURE_1	0x10	/* alternate #1 feature enable */
38#define AD1845_AF1_MIC_LEFT	0x10	/* alternate #1 feature + MIC left */
39#define CS4231_ALT_FEATURE_2	0x11	/* alternate #2 feature enable */
40#define AD1845_AF2_MIC_RIGHT	0x11	/* alternate #2 feature + MIC right */
41#define CS4231_LEFT_LINE_IN	0x12	/* left line input control */
42#define CS4231_RIGHT_LINE_IN	0x13	/* right line input control */
43#define CS4231_TIMER_LOW	0x14	/* timer low byte */
44#define CS4231_TIMER_HIGH	0x15	/* timer high byte */
45#define CS4231_LEFT_MIC_INPUT	0x16	/* left MIC input control register (InterWave only) */
46#define AD1845_UPR_FREQ_SEL	0x16	/* upper byte of frequency select */
47#define CS4231_RIGHT_MIC_INPUT	0x17	/* right MIC input control register (InterWave only) */
48#define AD1845_LWR_FREQ_SEL	0x17	/* lower byte of frequency select */
49#define CS4236_EXT_REG		0x17	/* extended register access */
50#define CS4231_IRQ_STATUS	0x18	/* irq status register */
51#define CS4231_LINE_LEFT_OUTPUT	0x19	/* left line output control register (InterWave only) */
52#define CS4231_VERSION		0x19	/* CS4231(A) - version values */
53#define CS4231_MONO_CTRL	0x1a	/* mono input/output control */
54#define CS4231_LINE_RIGHT_OUTPUT 0x1b	/* right line output control register (InterWave only) */
55#define AD1845_PWR_DOWN		0x1b	/* power down control */
56#define CS4235_LEFT_MASTER	0x1b	/* left master output control */
57#define CS4231_REC_FORMAT	0x1c	/* clock and data format - record - bits 7-0 MCE */
58#define AD1845_CLOCK		0x1d	/* crystal clock select and total power down */
59#define CS4235_RIGHT_MASTER	0x1d	/* right master output control */
60#define CS4231_REC_UPR_CNT	0x1e	/* record upper count */
61#define CS4231_REC_LWR_CNT	0x1f	/* record lower count */
62
63/* definitions for codec register select port - CODECP( REGSEL ) */
64
65#define CS4231_INIT		0x80	/* CODEC is initializing */
66#define CS4231_MCE		0x40	/* mode change enable */
67#define CS4231_TRD		0x20	/* transfer request disable */
68
69/* definitions for codec status register - CODECP( STATUS ) */
70
71#define CS4231_GLOBALIRQ	0x01	/* IRQ is active */
72
73/* definitions for codec irq status */
74
75#define CS4231_PLAYBACK_IRQ	0x10
76#define CS4231_RECORD_IRQ	0x20
77#define CS4231_TIMER_IRQ	0x40
78#define CS4231_ALL_IRQS		0x70
79#define CS4231_REC_UNDERRUN	0x08
80#define CS4231_REC_OVERRUN	0x04
81#define CS4231_PLY_OVERRUN	0x02
82#define CS4231_PLY_UNDERRUN	0x01
83
84/* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */
85
86#define CS4231_ENABLE_MIC_GAIN	0x20
87
88#define CS4231_MIXS_LINE	0x00
89#define CS4231_MIXS_AUX1	0x40
90#define CS4231_MIXS_MIC		0x80
91#define CS4231_MIXS_ALL		0xc0
92
93/* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */
94
95#define CS4231_LINEAR_8		0x00	/* 8-bit unsigned data */
96#define CS4231_ALAW_8		0x60	/* 8-bit A-law companded */
97#define CS4231_ULAW_8		0x20	/* 8-bit U-law companded */
98#define CS4231_LINEAR_16	0x40	/* 16-bit twos complement data - little endian */
99#define CS4231_LINEAR_16_BIG	0xc0	/* 16-bit twos complement data - big endian */
100#define CS4231_ADPCM_16		0xa0	/* 16-bit ADPCM */
101#define CS4231_STEREO		0x10	/* stereo mode */
102/* bits 3-1 define frequency divisor */
103#define CS4231_XTAL1		0x00	/* 24.576 crystal */
104#define CS4231_XTAL2		0x01	/* 16.9344 crystal */
105
106/* definitions for interface control register - CS4231_IFACE_CTRL */
107
108#define CS4231_RECORD_PIO	0x80	/* record PIO enable */
109#define CS4231_PLAYBACK_PIO	0x40	/* playback PIO enable */
110#define CS4231_CALIB_MODE	0x18	/* calibration mode bits */
111#define CS4231_AUTOCALIB	0x08	/* auto calibrate */
112#define CS4231_SINGLE_DMA	0x04	/* use single DMA channel */
113#define CS4231_RECORD_ENABLE	0x02	/* record enable */
114#define CS4231_PLAYBACK_ENABLE	0x01	/* playback enable */
115
116/* definitions for pin control register - CS4231_PIN_CTRL */
117
118#define CS4231_IRQ_ENABLE	0x02	/* enable IRQ */
119#define CS4231_XCTL1		0x40	/* external control #1 */
120#define CS4231_XCTL0		0x80	/* external control #0 */
121
122/* definitions for test and init register - CS4231_TEST_INIT */
123
124#define CS4231_CALIB_IN_PROGRESS 0x20	/* auto calibrate in progress */
125#define CS4231_DMA_REQUEST	0x10	/* DMA request in progress */
126
127/* definitions for misc control register - CS4231_MISC_INFO */
128
129#define CS4231_MODE2		0x40	/* MODE 2 */
130#define CS4231_IW_MODE3		0x6c	/* MODE 3 - InterWave enhanced mode */
131#define CS4231_4236_MODE3	0xe0	/* MODE 3 - CS4236+ enhanced mode */
132
133/* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */
134
135#define	CS4231_DACZ		0x01	/* zero DAC when underrun */
136#define CS4231_TIMER_ENABLE	0x40	/* codec timer enable */
137#define CS4231_OLB		0x80	/* output level bit */
138
139/* definitions for Extended Registers - CS4236+ */
140
141#define CS4236_REG(i23val)	(((i23val << 2) & 0x10) | ((i23val >> 4) & 0x0f))
142#define CS4236_I23VAL(reg)	((((reg)&0xf) << 4) | (((reg)&0x10) >> 2) | 0x8)
143
144#define CS4236_LEFT_LINE	0x08	/* left LINE alternate volume */
145#define CS4236_RIGHT_LINE	0x18	/* right LINE alternate volume */
146#define CS4236_LEFT_MIC		0x28	/* left MIC volume */
147#define CS4236_RIGHT_MIC	0x38	/* right MIC volume */
148#define CS4236_LEFT_MIX_CTRL	0x48	/* synthesis and left input mixer control */
149#define CS4236_RIGHT_MIX_CTRL	0x58	/* right input mixer control */
150#define CS4236_LEFT_FM		0x68	/* left FM volume */
151#define CS4236_RIGHT_FM		0x78	/* right FM volume */
152#define CS4236_LEFT_DSP		0x88	/* left DSP serial port volume */
153#define CS4236_RIGHT_DSP	0x98	/* right DSP serial port volume */
154#define CS4236_RIGHT_LOOPBACK	0xa8	/* right loopback monitor volume */
155#define CS4236_DAC_MUTE		0xb8	/* DAC mute and IFSE enable */
156#define CS4236_ADC_RATE		0xc8	/* indenpendent ADC sample frequency */
157#define CS4236_DAC_RATE		0xd8	/* indenpendent DAC sample frequency */
158#define CS4236_LEFT_MASTER	0xe8	/* left master digital audio volume */
159#define CS4236_RIGHT_MASTER	0xf8	/* right master digital audio volume */
160#define CS4236_LEFT_WAVE	0x0c	/* left wavetable serial port volume */
161#define CS4236_RIGHT_WAVE	0x1c	/* right wavetable serial port volume */
162#define CS4236_VERSION		0x9c	/* chip version and ID */
163
164/* definitions for extended registers - OPTI93X */
165#define OPTi931_AUX_LEFT_INPUT	0x10
166#define OPTi931_AUX_RIGHT_INPUT	0x11
167#define OPTi93X_MIC_LEFT_INPUT	0x14
168#define OPTi93X_MIC_RIGHT_INPUT	0x15
169#define OPTi93X_OUT_LEFT	0x16
170#define OPTi93X_OUT_RIGHT	0x17
171
172#endif /* __SOUND_CS4231_REGS_H */
173