1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Driver for PowerMac AWACS onboard soundchips
4  * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
5  *   based on dmasound.c.
6  */
7 
8 
9 #ifndef __AWACS_H
10 #define __AWACS_H
11 
12 /*******************************/
13 /* AWACs Audio Register Layout */
14 /*******************************/
15 
16 struct awacs_regs {
17     unsigned	control;	/* Audio control register */
18     unsigned	pad0[3];
19     unsigned	codec_ctrl;	/* Codec control register */
20     unsigned	pad1[3];
21     unsigned	codec_stat;	/* Codec status register */
22     unsigned	pad2[3];
23     unsigned	clip_count;	/* Clipping count register */
24     unsigned	pad3[3];
25     unsigned	byteswap;	/* Data is little-endian if 1 */
26 };
27 
28 /*******************/
29 /* Audio Bit Masks */
30 /*******************/
31 
32 /* Audio Control Reg Bit Masks */
33 /* ----- ------- --- --- ----- */
34 #define MASK_ISFSEL	(0xf)		/* Input SubFrame Select */
35 #define MASK_OSFSEL	(0xf << 4)	/* Output SubFrame Select */
36 #define MASK_RATE	(0x7 << 8)	/* Sound Rate */
37 #define MASK_CNTLERR	(0x1 << 11)	/* Error */
38 #define MASK_PORTCHG	(0x1 << 12)	/* Port Change */
39 #define MASK_IEE	(0x1 << 13)	/* Enable Interrupt on Error */
40 #define MASK_IEPC	(0x1 << 14)	/* Enable Interrupt on Port Change */
41 #define MASK_SSFSEL	(0x3 << 15)	/* Status SubFrame Select */
42 
43 /* Audio Codec Control Reg Bit Masks */
44 /* ----- ----- ------- --- --- ----- */
45 #define MASK_NEWECMD	(0x1 << 24)	/* Lock: don't write to reg when 1 */
46 #define MASK_EMODESEL	(0x3 << 22)	/* Send info out on which frame? */
47 #define MASK_EXMODEADDR	(0x3ff << 12)	/* Extended Mode Address -- 10 bits */
48 #define MASK_EXMODEDATA	(0xfff)		/* Extended Mode Data -- 12 bits */
49 
50 /* Audio Codec Control Address Values / Masks */
51 /* ----- ----- ------- ------- ------ - ----- */
52 #define MASK_ADDR0	(0x0 << 12)	/* Expanded Data Mode Address 0 */
53 #define MASK_ADDR_MUX	MASK_ADDR0	/* Mux Control */
54 #define MASK_ADDR_GAIN	MASK_ADDR0
55 
56 #define MASK_ADDR1	(0x1 << 12)	/* Expanded Data Mode Address 1 */
57 #define MASK_ADDR_MUTE	MASK_ADDR1
58 #define MASK_ADDR_RATE	MASK_ADDR1
59 
60 #define MASK_ADDR2	(0x2 << 12)	/* Expanded Data Mode Address 2 */
61 #define MASK_ADDR_VOLA	MASK_ADDR2	/* Volume Control A -- Headphones */
62 #define MASK_ADDR_VOLHD MASK_ADDR2
63 
64 #define MASK_ADDR4	(0x4 << 12)	/* Expanded Data Mode Address 4 */
65 #define MASK_ADDR_VOLC	MASK_ADDR4	/* Volume Control C -- Speaker */
66 #define MASK_ADDR_VOLSPK MASK_ADDR4
67 
68 /* additional registers of screamer */
69 #define MASK_ADDR5	(0x5 << 12)	/* Expanded Data Mode Address 5 */
70 #define MASK_ADDR6	(0x6 << 12)	/* Expanded Data Mode Address 6 */
71 #define MASK_ADDR7	(0x7 << 12)	/* Expanded Data Mode Address 7 */
72 
73 /* Address 0 Bit Masks & Macros */
74 /* ------- - --- ----- - ------ */
75 #define MASK_GAINRIGHT	(0xf)		/* Gain Right Mask */
76 #define MASK_GAINLEFT	(0xf << 4)	/* Gain Left Mask */
77 #define MASK_GAINLINE	(0x1 << 8)	/* Disable Mic preamp */
78 #define MASK_GAINMIC	(0x0 << 8)	/* Enable Mic preamp */
79 #define MASK_MUX_CD	(0x1 << 9)	/* Select CD in MUX */
80 #define MASK_MUX_MIC	(0x1 << 10)	/* Select Mic in MUX */
81 #define MASK_MUX_AUDIN	(0x1 << 11)	/* Select Audio In in MUX */
82 #define MASK_MUX_LINE	MASK_MUX_AUDIN
83 #define SHIFT_GAINLINE	8
84 #define SHIFT_MUX_CD	9
85 #define SHIFT_MUX_MIC	10
86 #define SHIFT_MUX_LINE	11
87 
88 #define GAINRIGHT(x)	((x) & MASK_GAINRIGHT)
89 #define GAINLEFT(x)	(((x) << 4) & MASK_GAINLEFT)
90 
91 /* Address 1 Bit Masks */
92 /* ------- - --- ----- */
93 #define MASK_ADDR1RES1	(0x3)		/* Reserved */
94 #define MASK_RECALIBRATE (0x1 << 2)	/* Recalibrate */
95 #define MASK_SAMPLERATE	(0x7 << 3)	/* Sample Rate: */
96 #define MASK_LOOPTHRU	(0x1 << 6)	/* Loopthrough Enable */
97 #define SHIFT_LOOPTHRU	6
98 #define MASK_CMUTE	(0x1 << 7)	/* Output C (Speaker) Mute when 1 */
99 #define MASK_SPKMUTE	MASK_CMUTE
100 #define SHIFT_SPKMUTE	7
101 #define MASK_ADDR1RES2	(0x1 << 8)	/* Reserved */
102 #define MASK_AMUTE	(0x1 << 9)	/* Output A (Headphone) Mute when 1 */
103 #define MASK_HDMUTE	MASK_AMUTE
104 #define SHIFT_HDMUTE	9
105 #define MASK_PAROUT	(0x3 << 10)	/* Parallel Out (???) */
106 #define MASK_PAROUT0	(0x1 << 10)	/* Parallel Out (???) */
107 #define MASK_PAROUT1	(0x1 << 11)	/* Parallel Out (enable speaker) */
108 #define SHIFT_PAROUT	10
109 #define SHIFT_PAROUT0	10
110 #define SHIFT_PAROUT1	11
111 
112 #define SAMPLERATE_48000	(0x0 << 3)	/* 48 or 44.1 kHz */
113 #define SAMPLERATE_32000	(0x1 << 3)	/* 32 or 29.4 kHz */
114 #define SAMPLERATE_24000	(0x2 << 3)	/* 24 or 22.05 kHz */
115 #define SAMPLERATE_19200	(0x3 << 3)	/* 19.2 or 17.64 kHz */
116 #define SAMPLERATE_16000	(0x4 << 3)	/* 16 or 14.7 kHz */
117 #define SAMPLERATE_12000	(0x5 << 3)	/* 12 or 11.025 kHz */
118 #define SAMPLERATE_9600		(0x6 << 3)	/* 9.6 or 8.82 kHz */
119 #define SAMPLERATE_8000		(0x7 << 3)	/* 8 or 7.35 kHz */
120 
121 /* Address 2 & 4 Bit Masks & Macros */
122 /* ------- - - - --- ----- - ------ */
123 #define MASK_OUTVOLRIGHT (0xf)		/* Output Right Volume */
124 #define MASK_ADDR2RES1	(0x2 << 4)	/* Reserved */
125 #define MASK_ADDR4RES1	MASK_ADDR2RES1
126 #define MASK_OUTVOLLEFT	(0xf << 6)	/* Output Left Volume */
127 #define MASK_ADDR2RES2	(0x2 << 10)	/* Reserved */
128 #define MASK_ADDR4RES2	MASK_ADDR2RES2
129 
130 #define VOLRIGHT(x)	(((~(x)) & MASK_OUTVOLRIGHT))
131 #define VOLLEFT(x)	(((~(x)) << 6) & MASK_OUTVOLLEFT)
132 
133 /* address 6 */
134 #define MASK_MIC_BOOST  (0x4)		/* screamer mic boost */
135 #define SHIFT_MIC_BOOST	2
136 
137 /* Audio Codec Status Reg Bit Masks */
138 /* ----- ----- ------ --- --- ----- */
139 #define MASK_EXTEND	(0x1 << 23)	/* Extend */
140 #define MASK_VALID	(0x1 << 22)	/* Valid Data? */
141 #define MASK_OFLEFT	(0x1 << 21)	/* Overflow Left */
142 #define MASK_OFRIGHT	(0x1 << 20)	/* Overflow Right */
143 #define MASK_ERRCODE	(0xf << 16)	/* Error Code */
144 #define MASK_REVISION	(0xf << 12)	/* Revision Number */
145 #define MASK_MFGID	(0xf << 8)	/* Mfg. ID */
146 #define MASK_CODSTATRES	(0xf << 4)	/* bits 4 - 7 reserved */
147 #define MASK_INSENSE	(0xf)		/* port sense bits: */
148 #define MASK_HDPCONN		8	/* headphone plugged in */
149 #define MASK_LOCONN		4	/* line-out plugged in */
150 #define MASK_LICONN		2	/* line-in plugged in */
151 #define MASK_MICCONN		1	/* microphone plugged in */
152 #define MASK_LICONN_IMAC	8	/* line-in plugged in */
153 #define MASK_HDPRCONN_IMAC	4	/* headphone right plugged in */
154 #define MASK_HDPLCONN_IMAC	2	/* headphone left plugged in */
155 #define MASK_LOCONN_IMAC	1	/* line-out plugged in */
156 
157 /* Clipping Count Reg Bit Masks */
158 /* -------- ----- --- --- ----- */
159 #define MASK_CLIPLEFT	(0xff << 7)	/* Clipping Count, Left Channel */
160 #define MASK_CLIPRIGHT	(0xff)		/* Clipping Count, Right Channel */
161 
162 /* DBDMA ChannelStatus Bit Masks */
163 /* ----- ------------- --- ----- */
164 #define MASK_CSERR	(0x1 << 7)	/* Error */
165 #define MASK_EOI	(0x1 << 6)	/* End of Input --
166 					   only for Input Channel */
167 #define MASK_CSUNUSED	(0x1f << 1)	/* bits 1-5 not used */
168 #define MASK_WAIT	(0x1)		/* Wait */
169 
170 /* Various Rates */
171 /* ------- ----- */
172 #define RATE_48000	(0x0 << 8)	/* 48 kHz */
173 #define RATE_44100	(0x0 << 8)	/* 44.1 kHz */
174 #define RATE_32000	(0x1 << 8)	/* 32 kHz */
175 #define RATE_29400	(0x1 << 8)	/* 29.4 kHz */
176 #define RATE_24000	(0x2 << 8)	/* 24 kHz */
177 #define RATE_22050	(0x2 << 8)	/* 22.05 kHz */
178 #define RATE_19200	(0x3 << 8)	/* 19.2 kHz */
179 #define RATE_17640	(0x3 << 8)	/* 17.64 kHz */
180 #define RATE_16000	(0x4 << 8)	/* 16 kHz */
181 #define RATE_14700	(0x4 << 8)	/* 14.7 kHz */
182 #define RATE_12000	(0x5 << 8)	/* 12 kHz */
183 #define RATE_11025	(0x5 << 8)	/* 11.025 kHz */
184 #define RATE_9600	(0x6 << 8)	/* 9.6 kHz */
185 #define RATE_8820	(0x6 << 8)	/* 8.82 kHz */
186 #define RATE_8000	(0x7 << 8)	/* 8 kHz */
187 #define RATE_7350	(0x7 << 8)	/* 7.35 kHz */
188 
189 #define RATE_LOW	1	/* HIGH = 48kHz, etc;  LOW = 44.1kHz, etc. */
190 
191 
192 #endif /* __AWACS_H */
193