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
|
/*
* Driver for Digigram pcxhr soundcards
*
* main header file
*
* Copyright (c) 2004 by Digigram <alsa@digigram.com>
*
* 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
*/
#ifndef __SOUND_PCXHR_H
#define __SOUND_PCXHR_H
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <sound/pcm.h>
#define PCXHR_DRIVER_VERSION 0x000804 /* 0.8.4 */
#define PCXHR_DRIVER_VERSION_STRING "0.8.4" /* 0.8.4 */
#define PCXHR_MAX_CARDS 6
#define PCXHR_PLAYBACK_STREAMS 4
#define PCXHR_GRANULARITY 96 /* transfer granularity (should be min 96 and multiple of 48) */
#define PCXHR_GRANULARITY_MIN 96 /* transfer granularity of pipes and the dsp time (MBOX4) */
struct snd_pcxhr;
struct pcxhr_mgr;
struct pcxhr_stream;
struct pcxhr_pipe;
enum pcxhr_clock_type {
PCXHR_CLOCK_TYPE_INTERNAL = 0,
PCXHR_CLOCK_TYPE_WORD_CLOCK,
PCXHR_CLOCK_TYPE_AES_SYNC,
PCXHR_CLOCK_TYPE_AES_1,
PCXHR_CLOCK_TYPE_AES_2,
PCXHR_CLOCK_TYPE_AES_3,
PCXHR_CLOCK_TYPE_AES_4,
};
struct pcxhr_mgr {
unsigned int num_cards;
struct snd_pcxhr *chip[PCXHR_MAX_CARDS];
struct pci_dev *pci;
int irq;
/* card access with 1 mem bar and 2 io bar's */
unsigned long port[3];
/* share the name */
char shortname[32]; /* short name of this soundcard */
char longname[96]; /* name of this soundcard */
/* message tasklet */
struct tasklet_struct msg_taskq;
struct pcxhr_rmh *prmh;
/* trigger tasklet */
struct tasklet_struct trigger_taskq;
spinlock_t lock; /* interrupt spinlock */
spinlock_t msg_lock; /* message spinlock */
struct mutex setup_mutex; /* mutex used in hw_params, open and close */
struct mutex mixer_mutex; /* mutex for mixer */
/* hardware interface */
unsigned int dsp_loaded; /* bit flags of loaded dsp indices */
unsigned int dsp_version; /* read from embedded once firmware is loaded */
int board_has_analog; /* if 0 the board is digital only */
int mono_capture; /* if 1 the board does mono capture */
int playback_chips; /* 4 or 6 */
int capture_chips; /* 4 or 1 */
int firmware_num; /* 41 or 42 */
struct snd_dma_buffer hostport;
enum pcxhr_clock_type use_clock_type; /* clock type selected by mixer */
enum pcxhr_clock_type cur_clock_type; /* current clock type synced */
int sample_rate;
int ref_count_rate;
int timer_toggle; /* timer interrupt toggles between the two values 0x200 and 0x300 */
int dsp_time_last; /* the last dsp time (read by interrupt) */
int dsp_time_err; /* dsp time errors */
unsigned int src_it_dsp; /* dsp interrupt source */
unsigned int io_num_reg_cont; /* backup of IO_NUM_REG_CONT */
unsigned int codec_speed; /* speed mode of the codecs */
unsigned int sample_rate_real; /* current real sample rate */
int last_reg_stat;
int async_err_stream_xrun;
int async_err_pipe_xrun;
int async_err_other_last;
};
enum pcxhr_stream_status {
PCXHR_STREAM_STATUS_FREE,
PCXHR_STREAM_STATUS_OPEN,
PCXHR_STREAM_STATUS_SCHEDULE_RUN,
PCXHR_STREAM_STATUS_STARTED,
PCXHR_STREAM_STATUS_RUNNING,
PCXHR_STREAM_STATUS_SCHEDULE_STOP,
PCXHR_STREAM_STATUS_STOPPED,
PCXHR_STREAM_STATUS_PAUSED
};
struct pcxhr_stream {
struct snd_pcm_substream *substream;
snd_pcm_format_t format;
struct pcxhr_pipe *pipe;
enum pcxhr_stream_status status; /* free, open, running, draining, pause */
u_int64_t timer_abs_periods; /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */
u_int32_t timer_period_frag; /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */
u_int32_t timer_buf_periods; /* nb of periods in the buffer that have already elapsed */
int timer_is_synced; /* if(0) : timer needs to be resynced with real hardware pointer */
int channels;
};
enum pcxhr_pipe_status {
PCXHR_PIPE_UNDEFINED,
PCXHR_PIPE_DEFINED
};
struct pcxhr_pipe {
enum pcxhr_pipe_status status;
int is_capture; /* this is a capture pipe */
int first_audio; /* first audio num */
};
struct snd_pcxhr {
struct snd_card *card;
struct pcxhr_mgr *mgr;
int chip_idx; /* zero based */
struct snd_pcm *pcm; /* PCM */
struct pcxhr_pipe playback_pipe; /* 1 stereo pipe only */
struct pcxhr_pipe capture_pipe[2]; /* 1 stereo pipe or 2 mono pipes */
struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS];
struct pcxhr_stream capture_stream[2]; /* 1 stereo stream or 2 mono streams */
int nb_streams_play;
int nb_streams_capt;
int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */
int analog_playback_volume[2]; /* Mixer : Master Playback Volume */
int analog_capture_volume[2]; /* Mixer : Master Capture Volume */
int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [streams][stereo]*/
int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [streams][stereo]*/
int digital_capture_volume[2]; /* Mixer : Digital Capture Volume [stereo] */
int monitoring_active[2]; /* Mixer : Monitoring Active */
int monitoring_volume[2]; /* Mixer : Monitoring Volume */
int audio_capture_source; /* Mixer : Audio Capture Source */
unsigned char aes_bits[5]; /* Mixer : IEC958_AES bits */
};
struct pcxhr_hostport
{
char purgebuffer[6];
char reserved[2];
};
/* exported */
int pcxhr_create_pcm(struct snd_pcxhr *chip);
int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate);
int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate);
#endif /* __SOUND_PCXHR_H */
|
