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-rw-r--r--sound/oss/emu10k1/ecard.h113
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diff --git a/sound/oss/emu10k1/ecard.h b/sound/oss/emu10k1/ecard.h
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1/*
2 **********************************************************************
3 * ecard.h
4 * Copyright 1999, 2000 Creative Labs, Inc.
5 *
6 **********************************************************************
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the Free
20 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
21 * USA.
22 *
23 **********************************************************************
24 */
25
26#ifndef _ECARD_H
27#define _ECARD_H
28
29#include "8010.h"
30#include "hwaccess.h"
31#include <linux/init.h>
32
33/* In A1 Silicon, these bits are in the HC register */
34#define HOOKN_BIT (1L << 12)
35#define HANDN_BIT (1L << 11)
36#define PULSEN_BIT (1L << 10)
37
38#define EC_GDI1 (1 << 13)
39#define EC_GDI0 (1 << 14)
40
41#define EC_NUM_CONTROL_BITS 20
42
43#define EC_AC3_DATA_SELN 0x0001L
44#define EC_EE_DATA_SEL 0x0002L
45#define EC_EE_CNTRL_SELN 0x0004L
46#define EC_EECLK 0x0008L
47#define EC_EECS 0x0010L
48#define EC_EESDO 0x0020L
49#define EC_TRIM_CSN 0x0040L
50#define EC_TRIM_SCLK 0x0080L
51#define EC_TRIM_SDATA 0x0100L
52#define EC_TRIM_MUTEN 0x0200L
53#define EC_ADCCAL 0x0400L
54#define EC_ADCRSTN 0x0800L
55#define EC_DACCAL 0x1000L
56#define EC_DACMUTEN 0x2000L
57#define EC_LEDN 0x4000L
58
59#define EC_SPDIF0_SEL_SHIFT 15
60#define EC_SPDIF1_SEL_SHIFT 17
61#define EC_SPDIF0_SEL_MASK (0x3L << EC_SPDIF0_SEL_SHIFT)
62#define EC_SPDIF1_SEL_MASK (0x7L << EC_SPDIF1_SEL_SHIFT)
63#define EC_SPDIF0_SELECT(_x) (((_x) << EC_SPDIF0_SEL_SHIFT) & EC_SPDIF0_SEL_MASK)
64#define EC_SPDIF1_SELECT(_x) (((_x) << EC_SPDIF1_SEL_SHIFT) & EC_SPDIF1_SEL_MASK)
65#define EC_CURRENT_PROM_VERSION 0x01 /* Self-explanatory. This should
66 * be incremented any time the EEPROM's
67 * format is changed. */
68
69#define EC_EEPROM_SIZE 0x40 /* ECARD EEPROM has 64 16-bit words */
70
71/* Addresses for special values stored in to EEPROM */
72#define EC_PROM_VERSION_ADDR 0x20 /* Address of the current prom version */
73#define EC_BOARDREV0_ADDR 0x21 /* LSW of board rev */
74#define EC_BOARDREV1_ADDR 0x22 /* MSW of board rev */
75
76#define EC_LAST_PROMFILE_ADDR 0x2f
77
78#define EC_SERIALNUM_ADD 0x30 /* First word of serial number. The number
79 * can be up to 30 characters in length
80 * and is stored as a NULL-terminated
81 * ASCII string. Any unused bytes must be
82 * filled with zeros */
83#define EC_CHECKSUM_ADDR 0x3f /* Location at which checksum is stored */
84
85
86
87/* Most of this stuff is pretty self-evident. According to the hardware
88 * dudes, we need to leave the ADCCAL bit low in order to avoid a DC
89 * offset problem. Weird.
90 */
91#define EC_RAW_RUN_MODE (EC_DACMUTEN | EC_ADCRSTN | EC_TRIM_MUTEN | EC_TRIM_CSN)
92
93
94#define EC_DEFAULT_ADC_GAIN 0xC4C4
95#define EC_DEFAULT_SPDIF0_SEL 0x0
96#define EC_DEFAULT_SPDIF1_SEL 0x4
97
98#define HC_EA 0x01L
99
100/* ECARD state structure. This structure maintains the state
101 * for various portions of the ECARD's onboard hardware.
102 */
103struct ecard_state {
104 u32 control_bits;
105 u16 adc_gain;
106 u16 mux0_setting;
107 u16 mux1_setting;
108 u16 mux2_setting;
109};
110
111void emu10k1_ecard_init(struct emu10k1_card *) __devinit;
112
113#endif /* _ECARD_H */