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
|
/*
* ALSA client/server header file
* Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <netdb.h>
#include "../src/pcm/pcm_local.h"
#include "../src/control/control_local.h"
int snd_receive_fd(int sock, void *data, size_t len, int *fd);
typedef enum _snd_dev_type {
SND_DEV_TYPE_PCM,
SND_DEV_TYPE_CONTROL,
SND_DEV_TYPE_RAWMIDI,
SND_DEV_TYPE_TIMER,
SND_DEV_TYPE_HWDEP,
SND_DEV_TYPE_SEQ,
} snd_dev_type_t;
typedef enum _snd_transport_type {
SND_TRANSPORT_TYPE_SHM,
SND_TRANSPORT_TYPE_TCP,
} snd_transport_type_t;
#define SND_PCM_IOCTL_HWSYNC _IO ('A', 0x22)
#define SND_PCM_IOCTL_STATE _IO ('A', 0xf1)
#define SND_PCM_IOCTL_MMAP _IO ('A', 0xf2)
#define SND_PCM_IOCTL_MUNMAP _IO ('A', 0xf3)
#define SND_PCM_IOCTL_MMAP_COMMIT _IO ('A', 0xf4)
#define SND_PCM_IOCTL_AVAIL_UPDATE _IO ('A', 0xf5)
#define SND_PCM_IOCTL_ASYNC _IO ('A', 0xf6)
#define SND_PCM_IOCTL_CLOSE _IO ('A', 0xf7)
#define SND_PCM_IOCTL_POLL_DESCRIPTOR _IO ('A', 0xf8)
#define SND_PCM_IOCTL_HW_PTR_FD _IO ('A', 0xf9)
#define SND_PCM_IOCTL_APPL_PTR_FD _IO ('A', 0xfa)
#define SND_PCM_IOCTL_FORWARD _IO ('A', 0xfb)
typedef struct {
snd_pcm_uframes_t ptr;
int use_mmap;
off_t offset; /* for mmap */
int changed;
} snd_pcm_shm_rbptr_t;
typedef struct {
long result;
int cmd;
snd_pcm_shm_rbptr_t hw;
snd_pcm_shm_rbptr_t appl;
union {
struct {
int sig;
pid_t pid;
} async;
snd_pcm_info_t info;
snd_pcm_hw_params_t hw_refine;
snd_pcm_hw_params_t hw_params;
snd_pcm_sw_params_t sw_params;
snd_pcm_status_t status;
struct {
snd_pcm_uframes_t frames;
} avail;
struct {
snd_pcm_sframes_t frames;
} delay;
struct {
int enable;
} pause;
snd_pcm_channel_info_t channel_info;
struct {
snd_pcm_uframes_t frames;
} rewind;
struct {
snd_pcm_uframes_t frames;
} forward;
struct {
int fd;
} link;
struct {
snd_pcm_uframes_t offset;
snd_pcm_uframes_t frames;
} mmap_commit;
struct {
char use_mmap;
int shmid;
off_t offset;
} rbptr;
} u;
char data[0];
} snd_pcm_shm_ctrl_t;
#define PCM_SHM_SIZE sizeof(snd_pcm_shm_ctrl_t)
#define SND_CTL_IOCTL_READ _IOR('U', 0xf1, snd_ctl_event_t)
#define SND_CTL_IOCTL_CLOSE _IO ('U', 0xf2)
#define SND_CTL_IOCTL_POLL_DESCRIPTOR _IO ('U', 0xf3)
#define SND_CTL_IOCTL_ASYNC _IO ('U', 0xf4)
typedef struct {
int result;
int cmd;
union {
struct {
int sig;
pid_t pid;
} async;
int device;
int subscribe_events;
snd_ctl_card_info_t card_info;
snd_ctl_elem_list_t element_list;
snd_ctl_elem_info_t element_info;
snd_ctl_elem_value_t element_read;
snd_ctl_elem_value_t element_write;
snd_ctl_elem_id_t element_lock;
snd_ctl_elem_id_t element_unlock;
snd_hwdep_info_t hwdep_info;
snd_pcm_info_t pcm_info;
int pcm_prefer_subdevice;
snd_rawmidi_info_t rawmidi_info;
int rawmidi_prefer_subdevice;
unsigned int power_state;
snd_ctl_event_t read;
} u;
char data[0];
} snd_ctl_shm_ctrl_t;
#define CTL_SHM_SIZE 65536
#define CTL_SHM_DATA_MAXLEN (CTL_SHM_SIZE - offsetof(snd_ctl_shm_ctrl_t, data))
typedef struct {
unsigned char dev_type;
unsigned char transport_type;
unsigned char stream;
unsigned char mode;
unsigned char namelen;
char name[0];
} snd_client_open_request_t;
typedef struct {
long result;
int cookie;
} snd_client_open_answer_t;
|
