1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
#ifndef __SOUND_AD1848_H
#define __SOUND_AD1848_H
/*
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
* Definitions for AD1847/AD1848/CS4248 chips
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "pcm.h"
#include <linux/interrupt.h>
/* IO ports */
#define AD1848P( codec, x ) ( (chip) -> port + c_d_c_AD1848##x )
#define c_d_c_AD1848REGSEL 0
#define c_d_c_AD1848REG 1
#define c_d_c_AD1848STATUS 2
#define c_d_c_AD1848PIO 3
/* codec registers */
#define AD1848_LEFT_INPUT 0x00 /* left input control */
#define AD1848_RIGHT_INPUT 0x01 /* right input control */
#define AD1848_AUX1_LEFT_INPUT 0x02 /* left AUX1 input control */
#define AD1848_AUX1_RIGHT_INPUT 0x03 /* right AUX1 input control */
#define AD1848_AUX2_LEFT_INPUT 0x04 /* left AUX2 input control */
#define AD1848_AUX2_RIGHT_INPUT 0x05 /* right AUX2 input control */
#define AD1848_LEFT_OUTPUT 0x06 /* left output control register */
#define AD1848_RIGHT_OUTPUT 0x07 /* right output control register */
#define AD1848_DATA_FORMAT 0x08 /* clock and data format - playback/capture - bits 7-0 MCE */
#define AD1848_IFACE_CTRL 0x09 /* interface control - bits 7-2 MCE */
#define AD1848_PIN_CTRL 0x0a /* pin control */
#define AD1848_TEST_INIT 0x0b /* test and initialization */
#define AD1848_MISC_INFO 0x0c /* miscellaneaous information */
#define AD1848_LOOPBACK 0x0d /* loopback control */
#define AD1848_DATA_UPR_CNT 0x0e /* playback/capture upper base count */
#define AD1848_DATA_LWR_CNT 0x0f /* playback/capture lower base count */
/* definitions for codec register select port - CODECP( REGSEL ) */
#define AD1848_INIT 0x80 /* CODEC is initializing */
#define AD1848_MCE 0x40 /* mode change enable */
#define AD1848_TRD 0x20 /* transfer request disable */
/* definitions for codec status register - CODECP( STATUS ) */
#define AD1848_GLOBALIRQ 0x01 /* IRQ is active */
/* definitions for AD1848_LEFT_INPUT and AD1848_RIGHT_INPUT registers */
#define AD1848_ENABLE_MIC_GAIN 0x20
#define AD1848_MIXS_LINE1 0x00
#define AD1848_MIXS_AUX1 0x40
#define AD1848_MIXS_LINE2 0x80
#define AD1848_MIXS_ALL 0xc0
/* definitions for clock and data format register - AD1848_PLAYBK_FORMAT */
#define AD1848_LINEAR_8 0x00 /* 8-bit unsigned data */
#define AD1848_ALAW_8 0x60 /* 8-bit A-law companded */
#define AD1848_ULAW_8 0x20 /* 8-bit U-law companded */
#define AD1848_LINEAR_16 0x40 /* 16-bit twos complement data - little endian */
#define AD1848_STEREO 0x10 /* stereo mode */
/* bits 3-1 define frequency divisor */
#define AD1848_XTAL1 0x00 /* 24.576 crystal */
#define AD1848_XTAL2 0x01 /* 16.9344 crystal */
/* definitions for interface control register - AD1848_IFACE_CTRL */
#define AD1848_CAPTURE_PIO 0x80 /* capture PIO enable */
#define AD1848_PLAYBACK_PIO 0x40 /* playback PIO enable */
#define AD1848_CALIB_MODE 0x18 /* calibration mode bits */
#define AD1848_AUTOCALIB 0x08 /* auto calibrate */
#define AD1848_SINGLE_DMA 0x04 /* use single DMA channel */
#define AD1848_CAPTURE_ENABLE 0x02 /* capture enable */
#define AD1848_PLAYBACK_ENABLE 0x01 /* playback enable */
/* definitions for pin control register - AD1848_PIN_CTRL */
#define AD1848_IRQ_ENABLE 0x02 /* enable IRQ */
#define AD1848_XCTL1 0x40 /* external control #1 */
#define AD1848_XCTL0 0x80 /* external control #0 */
/* definitions for test and init register - AD1848_TEST_INIT */
#define AD1848_CALIB_IN_PROGRESS 0x20 /* auto calibrate in progress */
#define AD1848_DMA_REQUEST 0x10 /* DMA request in progress */
/* defines for codec.mode */
#define AD1848_MODE_NONE 0x0000
#define AD1848_MODE_PLAY 0x0001
#define AD1848_MODE_CAPTURE 0x0002
#define AD1848_MODE_TIMER 0x0004
#define AD1848_MODE_OPEN (AD1848_MODE_PLAY|AD1848_MODE_CAPTURE|AD1848_MODE_TIMER)
#define AD1848_MODE_RUNNING 0x0010
/* defines for codec.hardware */
#define AD1848_HW_DETECT 0x0000 /* let AD1848 driver detect chip */
#define AD1848_HW_AD1847 0x0001 /* AD1847 chip */
#define AD1848_HW_AD1848 0x0002 /* AD1848 chip */
#define AD1848_HW_CS4248 0x0003 /* CS4248 chip */
#define AD1848_HW_CMI8330 0x0004 /* CMI8330 chip */
#define AD1848_HW_THINKPAD 0x0005 /* Thinkpad 360/750/755 */
/* IBM Thinkpad specific stuff */
#define AD1848_THINKPAD_CTL_PORT1 0x15e8
#define AD1848_THINKPAD_CTL_PORT2 0x15e9
#define AD1848_THINKPAD_CS4248_ENABLE_BIT 0x02
struct snd_ad1848 {
unsigned long port; /* i/o port */
struct resource *res_port;
int irq; /* IRQ line */
int dma; /* data DMA */
unsigned short version; /* version of CODEC chip */
unsigned short mode; /* see to AD1848_MODE_XXXX */
unsigned short hardware; /* see to AD1848_HW_XXXX */
unsigned short single_dma:1; /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
struct snd_pcm *pcm;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
struct snd_card *card;
unsigned char image[32]; /* SGalaxy needs an access to extended registers */
int mce_bit;
int calibrate_mute;
int dma_size;
int thinkpad_flag; /* Thinkpad CS4248 needs some extra help */
#ifdef CONFIG_PM
void (*suspend)(struct snd_ad1848 *chip);
void (*resume)(struct snd_ad1848 *chip);
#endif
spinlock_t reg_lock;
struct semaphore open_mutex;
};
/* exported functions */
void snd_ad1848_out(struct snd_ad1848 *chip, unsigned char reg, unsigned char value);
int snd_ad1848_create(struct snd_card *card,
unsigned long port,
int irq, int dma,
unsigned short hardware,
struct snd_ad1848 ** chip);
int snd_ad1848_pcm(struct snd_ad1848 * chip, int device, struct snd_pcm **rpcm);
const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction);
int snd_ad1848_mixer(struct snd_ad1848 * chip);
/* exported mixer stuffs */
enum { AD1848_MIX_SINGLE, AD1848_MIX_DOUBLE, AD1848_MIX_CAPTURE };
#define AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) \
((reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24))
#define AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) \
((left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22))
int snd_ad1848_add_ctl(struct snd_ad1848 *chip, const char *name, int index, int type, unsigned long value);
/* for ease of use */
struct ad1848_mix_elem {
const char *name;
int index;
int type;
unsigned long private_value;
};
#define AD1848_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_SINGLE, \
.private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) }
#define AD1848_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ .name = xname, \
.index = xindex, \
.type = AD1848_MIX_DOUBLE, \
.private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) }
static inline int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip, const struct ad1848_mix_elem *c)
{
return snd_ad1848_add_ctl(chip, c->name, c->index, c->type, c->private_value);
}
#endif /* __SOUND_AD1848_H */
|
