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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * IOStreamShared.h␊ |
| 3 | * IOStreamFamily␊ |
| 4 | *␊ |
| 5 | * Copyright 2006 Apple Computer, Inc. All rights reserved.␊ |
| 6 | *␊ |
| 7 | */␊ |
| 8 | ␊ |
| 9 | #if !defined(__IOKIT_IOSTREAMSHARED_H)␊ |
| 10 | #define __IOKIT_IOSTREAMSHARED_H␊ |
| 11 | ␊ |
| 12 | #include <sys/cdefs.h>␊ |
| 13 | ␊ |
| 14 | #include <IOKit/IOTypes.h>␊ |
| 15 | ␊ |
| 16 | /*!␊ |
| 17 | @header IOStreamShared.h␊ |
| 18 | IOStream definitions shared between kernel and user space.␊ |
| 19 | */␊ |
| 20 | ␊ |
| 21 | __BEGIN_DECLS ␊ |
| 22 | ␊ |
| 23 | // Buffer numbers are guaranteed to go from 0 to bufferCount - 1.␊ |
| 24 | /*!␊ |
| 25 | @typedef IOStreamBufferID␊ |
| 26 | */␊ |
| 27 | typedef UInt32 IOStreamBufferID;␊ |
| 28 | #define kIOStreamBufferIDInvalid (~0)␊ |
| 29 | ␊ |
| 30 | // This is the header for the shared-memory queue used to send buffer notifications␊ |
| 31 | // from kernel to user space or vice versa.␊ |
| 32 | ␊ |
| 33 | // Queue entry in input or output queue␊ |
| 34 | ␊ |
| 35 | #ifdef __cplusplus␊ |
| 36 | ␊ |
| 37 | /*!␊ |
| 38 | @struct IOStreamBufferQueueEntry␊ |
| 39 | @field bufferID The ID of the buffer passed in this queue entry.␊ |
| 40 | @field dataLength The length of the valid data in the buffer.␊ |
| 41 | @field reserved Reserved for future use.␊ |
| 42 | */␊ |
| 43 | ␊ |
| 44 | struct IOStreamBufferQueueEntry {␊ |
| 45 | IOStreamBufferID bufferID;␊ |
| 46 | UInt32 dataOffset;␊ |
| 47 | UInt32 dataLength;␊ |
| 48 | UInt32 controlOffset;␊ |
| 49 | UInt32 controlLength;␊ |
| 50 | UInt32 reserved[3];␊ |
| 51 | };␊ |
| 52 | ␊ |
| 53 | ␊ |
| 54 | /*!␊ |
| 55 | @struct IOStreamBufferQueue␊ |
| 56 | @field entryCount The number of queue entries in the queue.␊ |
| 57 | @field headIndex The index of the next queue slot that will be filled in by the queue writer.␊ |
| 58 | @field tailIndex The index of the next queue slot that can be read by the queue reader.␊ |
| 59 | @field reserved Reserved for future use.␊ |
| 60 | @field queue The array of queue entries.␊ |
| 61 | */␊ |
| 62 | ␊ |
| 63 | struct IOStreamBufferQueue {␊ |
| 64 | UInt32 entryCount;␊ |
| 65 | volatile UInt32 headIndex;␊ |
| 66 | volatile UInt32 tailIndex;␊ |
| 67 | UInt32 reserved;␊ |
| 68 | IOStreamBufferQueueEntry queue[0];␊ |
| 69 | };␊ |
| 70 | ␊ |
| 71 | #else␊ |
| 72 | ␊ |
| 73 | typedef struct __IOStreamBufferQueueEntry {␊ |
| 74 | IOStreamBufferID bufferID;␊ |
| 75 | UInt32 dataOffset;␊ |
| 76 | UInt32 dataLength;␊ |
| 77 | UInt32 controlOffset;␊ |
| 78 | UInt32 controlLength;␊ |
| 79 | UInt32 reserved[3];␊ |
| 80 | } IOStreamBufferQueueEntry;␊ |
| 81 | ␊ |
| 82 | typedef struct __IOStreamBufferQueue {␊ |
| 83 | UInt32 entryCount;␊ |
| 84 | volatile UInt32 headIndex;␊ |
| 85 | volatile UInt32 tailIndex;␊ |
| 86 | UInt32 reserved;␊ |
| 87 | IOStreamBufferQueueEntry queue[0];␊ |
| 88 | } IOStreamBufferQueue;␊ |
| 89 | ␊ |
| 90 | #endif␊ |
| 91 | ␊ |
| 92 | /*!␊ |
| 93 | @enum Memory mapping types␊ |
| 94 | @constant kIOStreamMemoryTypeOutputQueue␊ |
| 95 | @constant kIOStreamMemoryTypeInputQueue␊ |
| 96 | @constant kIOStreamMemoryTypeBufferData␊ |
| 97 | @constant kIOStreamMemoryTypeBufferControl␊ |
| 98 | @constant kIOStreamBufferIDMask␊ |
| 99 | @constant kIOStreamMemoryTypeMask␊ |
| 100 | @abstract Memory types used with IOConnectMapMemory().␊ |
| 101 | */␊ |
| 102 | enum {␊ |
| 103 | kIOStreamMemoryTypeOutputQueue = 0x10000000,␊ |
| 104 | kIOStreamMemoryTypeInputQueue = 0x20000000,␊ |
| 105 | kIOStreamMemoryTypeBufferData = 0x30000000,␊ |
| 106 | kIOStreamMemoryTypeBufferControl = 0x40000000,␊ |
| 107 | kIOStreamBufferIDMask = 0x0FFFFFFF,␊ |
| 108 | kIOStreamMemoryTypeMask = 0xF0000000␊ |
| 109 | };␊ |
| 110 | ␊ |
| 111 | /*!␊ |
| 112 | @enum Mach port types␊ |
| 113 | @constant kIOStreamPortTypeOutput␊ |
| 114 | @constant kIOStreamPortTypeInput␊ |
| 115 | @abstract Port types used with IOConnectSetNotificationPort().␊ |
| 116 | */␊ |
| 117 | enum {␊ |
| 118 | kIOStreamPortTypeOutput,␊ |
| 119 | kIOStreamPortTypeInput␊ |
| 120 | };␊ |
| 121 | ␊ |
| 122 | /*!␊ |
| 123 | @enum IOStream open options␊ |
| 124 | */␊ |
| 125 | ␊ |
| 126 | enum {␊ |
| 127 | kIOStreamOptionOpenExclusive = 0x00010000,␊ |
| 128 | kIOStreamOptionOpenShared = 0x00020000␊ |
| 129 | };␊ |
| 130 | ␊ |
| 131 | /*!␊ |
| 132 | @enum User client methods␊ |
| 133 | @constant kIOStreamMethodOpen␊ |
| 134 | @constant kIOStreamMethodClose␊ |
| 135 | @constant kIOStreamMethodStart␊ |
| 136 | @constant kIOStreamMethodStop␊ |
| 137 | @constant kIOStreamMethodSuspend␊ |
| 138 | @constant kIOStreamMethodGetMode␊ |
| 139 | @constant kIOStreamMethodSetMode␊ |
| 140 | ␊ |
| 141 | @abstract Client method numbers used with IOConnectMethod...() functions.␊ |
| 142 | */␊ |
| 143 | enum {␊ |
| 144 | kIOStreamMethodOpen,␊ |
| 145 | kIOStreamMethodClose,␊ |
| 146 | kIOStreamMethodStart,␊ |
| 147 | kIOStreamMethodStop,␊ |
| 148 | kIOStreamMethodSuspend,␊ |
| 149 | kIOStreamMethodGetMode,␊ |
| 150 | kIOStreamMethodSetMode,␊ |
| 151 | kIOStreamMethodGetBufferCount␊ |
| 152 | };␊ |
| 153 | ␊ |
| 154 | /*!␊ |
| 155 | @enum User client traps␊ |
| 156 | @constant kIOStreamEnqueueInputTrap␊ |
| 157 | @constant kIOStreamEnqueueInputSyncTrap␊ |
| 158 | @abstract Client trap numbers used with IOConnectTrap..() functions.␊ |
| 159 | */␊ |
| 160 | enum {␊ |
| 161 | kIOStreamEnqueueInputTrap,␊ |
| 162 | kIOStreamEnqueueInputSyncTrap␊ |
| 163 | };␊ |
| 164 | ␊ |
| 165 | typedef enum {␊ |
| 166 | kIOStreamModeInput, // From user to kernel space␊ |
| 167 | kIOStreamModeOutput, // From kernel to user space␊ |
| 168 | kIOStreamModeInputOutput // bidirectional␊ |
| 169 | } IOStreamMode;␊ |
| 170 | ␊ |
| 171 | ␊ |
| 172 | __END_DECLS␊ |
| 173 | ␊ |
| 174 | #endif /* ! __IOKIT_IOSTREAMSHARED_H */␊ |
| 175 | ␊ |
| 176 | |
