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1.1 root 1: /*++ BUILD Version: 0001 // Increment this if a change has global effects
2:
3: Copyright (c) 1990-1993 Microsoft Corporation
4:
5: Module Name:
6:
7: ntddwave.h
8:
9: Abstract:
10:
11: This include file defines all constants and types for
12: accessing an NT wave device.
13:
14: Author:
15:
16: NigelThompson (NigelT) 17-May-91
17:
18: Revision History:
19:
20: --*/
21:
22: #ifndef _NTDDWAVE_
23: #define _NTDDWAVE_
24:
25: #include <ntddsnd.h> // general sound stuff
26:
27: //
28: // Device Name - this string is the name of the device. It is the name
29: // that when added to the name of the root of the device tree and with
30: // the device number appended, gives the name of the device required for
31: // a call to NtOpenFile.
32: // So for example, if the root is \Device and the Device type is
33: // WaveIn and the device number is 2, the full name is \Device\WaveIn2
34: //
35:
36: #define DD_WAVE_IN_DEVICE_NAME "\\Device\\WaveIn"
37: #define DD_WAVE_IN_DEVICE_NAME_U L"\\Device\\WaveIn"
38: #define DD_WAVE_OUT_DEVICE_NAME "\\Device\\WaveOut"
39: #define DD_WAVE_OUT_DEVICE_NAME_U L"\\Device\\WaveOut"
40:
41: //
42: // WAVE device driver IOCTL set
43: //
44:
45: #define IOCTL_WAVE_QUERY_FORMAT CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0001, METHOD_BUFFERED, FILE_READ_ACCESS)
46: #define IOCTL_WAVE_SET_FORMAT CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0002, METHOD_BUFFERED, FILE_WRITE_ACCESS)
47: #define IOCTL_WAVE_GET_CAPABILITIES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0003, METHOD_BUFFERED, FILE_READ_ACCESS)
48: #define IOCTL_WAVE_SET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0004, METHOD_BUFFERED, FILE_WRITE_ACCESS)
49: #define IOCTL_WAVE_GET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0005, METHOD_BUFFERED, FILE_WRITE_ACCESS)
50: #define IOCTL_WAVE_GET_POSITION CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0006, METHOD_BUFFERED, FILE_WRITE_ACCESS)
51: #define IOCTL_WAVE_SET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0007, METHOD_BUFFERED, FILE_READ_ACCESS)
52: #define IOCTL_WAVE_GET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0008, METHOD_BUFFERED, FILE_READ_ACCESS)
53: #define IOCTL_WAVE_SET_PITCH CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0009, METHOD_BUFFERED, FILE_WRITE_ACCESS)
54: #define IOCTL_WAVE_GET_PITCH CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000A, METHOD_BUFFERED, FILE_WRITE_ACCESS)
55: #define IOCTL_WAVE_SET_PLAYBACK_RATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000B, METHOD_BUFFERED, FILE_WRITE_ACCESS)
56: #define IOCTL_WAVE_GET_PLAYBACK_RATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000C, METHOD_BUFFERED, FILE_WRITE_ACCESS)
57: #define IOCTL_WAVE_PLAY CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000D, METHOD_IN_DIRECT, FILE_WRITE_ACCESS)
58: #define IOCTL_WAVE_RECORD CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000E, METHOD_OUT_DIRECT, FILE_WRITE_ACCESS)
59: #define IOCTL_WAVE_BREAK_LOOP CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x000F, METHOD_BUFFERED, FILE_WRITE_ACCESS)
60:
61: //
62: // IOCTLs used in the debug build only
63: //
64:
65: #if DBG
66:
67: #define IOCTL_WAVE_SET_DEBUG_LEVEL CTL_CODE(IOCTL_SOUND_BASE, IOCTL_WAVE_BASE + 0x0040, METHOD_BUFFERED, FILE_READ_ACCESS)
68:
69: #endif // DBG
70:
71: //
72: // Wave position structure
73: //
74:
75: typedef struct _WAVE_DD_POSITION {
76: ULONG SampleCount; // Number of sound samples
77: ULONG ByteCount; // Number of bytes (in SampleCount samples)
78: } WAVE_DD_POSITION, *PWAVE_DD_POSITION;
79:
80: //
81: // Wave volume structure
82: //
83:
84: typedef struct _WAVE_DD_VOLUME {
85: ULONG Left;
86: ULONG Right;
87: } WAVE_DD_VOLUME, *PWAVE_DD_VOLUME;
88:
89: #define WAVE_DD_MAX_VOLUME 0xFFFFFFFF // Maximum volume
90:
91: //
92: // Wave pitch shift structure
93: //
94:
95: typedef struct _WAVE_DD_PITCH {
96: ULONG Pitch; // fixed point value 1.0 = 0x10000
97: } WAVE_DD_PITCH, *PWAVE_DD_PITCH;
98:
99: //
100: // Wave playback rate structure
101: //
102:
103: typedef struct _WAVE_DD_PLAYBACK_RATE {
104: ULONG Rate; // fixed point value 1.0 = 0x10000
105: } WAVE_DD_PLAYBACK_RATE, *PWAVE_DD_PLAYBACK_RATE;
106:
107: //
108: // State flags used to set the state of a driver
109: //
110:
111: #define WAVE_DD_STOP 0x0001
112: #define WAVE_DD_PLAY 0x0002 // output devices only
113: #define WAVE_DD_RECORD 0x0003 // input devices only
114: #define WAVE_DD_RESET 0x0004
115:
116: //
117: // States returned by the get state ioctl
118: //
119:
120: #define WAVE_DD_IDLE 0x0000
121: #define WAVE_DD_STOPPED 0x0001 // stopped
122: #define WAVE_DD_PLAYING 0x0002 // output devices only
123: #define WAVE_DD_RECORDING 0x0003 // input devices only
124:
125: #endif // _NTDDWAVE_
126:
127:
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