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      1 /*
      2  * ntddser.h
      3  *
      4  * Serial port driver interface
      5  *
      6  * This file is part of the w32api package.
      7  *
      8  * Contributors:
      9  *   Created by Casper S. Hornstrup <chorns (at) users.sourceforge.net>
     10  *
     11  * THIS SOFTWARE IS NOT COPYRIGHTED
     12  *
     13  * This source code is offered for use in the public domain. You may
     14  * use, modify or distribute it freely.
     15  *
     16  * This code is distributed in the hope that it will be useful but
     17  * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
     18  * DISCLAIMED. This includes but is not limited to warranties of
     19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
     20  *
     21  */
     22 
     23 #ifndef _NTDDSER_
     24 #define _NTDDSER_
     25 
     26 #ifdef __cplusplus
     27 extern "C" {
     28 #endif
     29 
     30 /* GUIDs */
     31 
     32 DEFINE_GUID(GUID_DEVINTERFACE_COMPORT,
     33   0x86e0d1e0, 0x8089, 0x11d0, 0x9c, 0xe4, 0x08, 0x00, 0x3e, 0x30, 0x1f, 0x73);
     34 
     35 #define GUID_CLASS_COMPORT GUID_DEVINTERFACE_COMPORT
     36 
     37 DEFINE_GUID(GUID_DEVINTERFACE_SERENUM_BUS_ENUMERATOR,
     38   0x4D36E978, 0xE325, 0x11CE, 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18);
     39 
     40 #define GUID_SERENUM_BUS_ENUMERATOR GUID_DEVINTERFACE_SERENUM_BUS_ENUMERATOR
     41 
     42 #define IOCTL_SERIAL_CLEAR_STATS \
     43   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 36, METHOD_BUFFERED, FILE_ANY_ACCESS)
     44 #define IOCTL_SERIAL_CLR_DTR \
     45   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 10, METHOD_BUFFERED, FILE_ANY_ACCESS)
     46 #define IOCTL_SERIAL_CLR_RTS \
     47   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 13, METHOD_BUFFERED, FILE_ANY_ACCESS)
     48 #define IOCTL_SERIAL_CONFIG_SIZE \
     49   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 32, METHOD_BUFFERED, FILE_ANY_ACCESS)
     50 #define IOCTL_SERIAL_GET_BAUD_RATE \
     51   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 20, METHOD_BUFFERED, FILE_ANY_ACCESS)
     52 #define IOCTL_SERIAL_GET_CHARS \
     53   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 22, METHOD_BUFFERED, FILE_ANY_ACCESS)
     54 #define IOCTL_SERIAL_GET_COMMSTATUS \
     55   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 27, METHOD_BUFFERED, FILE_ANY_ACCESS)
     56 #define IOCTL_SERIAL_GET_DTRRTS \
     57   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 30, METHOD_BUFFERED, FILE_ANY_ACCESS)
     58 #define IOCTL_SERIAL_GET_HANDFLOW \
     59   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 24, METHOD_BUFFERED, FILE_ANY_ACCESS)
     60 #define IOCTL_SERIAL_GET_LINE_CONTROL \
     61   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 21, METHOD_BUFFERED, FILE_ANY_ACCESS)
     62 #define IOCTL_SERIAL_GET_MODEM_CONTROL \
     63   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 37, METHOD_BUFFERED, FILE_ANY_ACCESS)
     64 #define IOCTL_SERIAL_GET_MODEMSTATUS \
     65   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 26, METHOD_BUFFERED, FILE_ANY_ACCESS)
     66 #define IOCTL_SERIAL_GET_PROPERTIES \
     67   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 29, METHOD_BUFFERED, FILE_ANY_ACCESS)
     68 #define IOCTL_SERIAL_GET_STATS \
     69   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 35, METHOD_BUFFERED, FILE_ANY_ACCESS)
     70 #define IOCTL_SERIAL_GET_TIMEOUTS \
     71   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 8, METHOD_BUFFERED, FILE_ANY_ACCESS)
     72 #define IOCTL_SERIAL_GET_WAIT_MASK \
     73   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 16, METHOD_BUFFERED, FILE_ANY_ACCESS)
     74 #define IOCTL_SERIAL_IMMEDIATE_CHAR \
     75   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 6, METHOD_BUFFERED, FILE_ANY_ACCESS)
     76 #define IOCTL_SERIAL_LSRMST_INSERT \
     77   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 31, METHOD_BUFFERED, FILE_ANY_ACCESS)
     78 #define IOCTL_SERIAL_PURGE \
     79   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 19, METHOD_BUFFERED, FILE_ANY_ACCESS)
     80 #define IOCTL_SERIAL_RESET_DEVICE \
     81   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 11, METHOD_BUFFERED, FILE_ANY_ACCESS)
     82 #define IOCTL_SERIAL_SET_BAUD_RATE \
     83   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
     84 #define IOCTL_SERIAL_SET_BREAK_ON \
     85   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 4, METHOD_BUFFERED, FILE_ANY_ACCESS)
     86 #define IOCTL_SERIAL_SET_BREAK_OFF \
     87   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 5, METHOD_BUFFERED, FILE_ANY_ACCESS)
     88 #define IOCTL_SERIAL_SET_CHARS \
     89   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 23, METHOD_BUFFERED, FILE_ANY_ACCESS)
     90 #define IOCTL_SERIAL_SET_DTR \
     91   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 9, METHOD_BUFFERED, FILE_ANY_ACCESS)
     92 #define IOCTL_SERIAL_SET_FIFO_CONTROL \
     93   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 39, METHOD_BUFFERED, FILE_ANY_ACCESS)
     94 #define IOCTL_SERIAL_SET_HANDFLOW \
     95   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 25, METHOD_BUFFERED, FILE_ANY_ACCESS)
     96 #define IOCTL_SERIAL_SET_LINE_CONTROL \
     97   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 3, METHOD_BUFFERED, FILE_ANY_ACCESS)
     98 #define IOCTL_SERIAL_SET_MODEM_CONTROL \
     99   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 38, METHOD_BUFFERED, FILE_ANY_ACCESS)
    100 #define IOCTL_SERIAL_SET_QUEUE_SIZE \
    101   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
    102 #define IOCTL_SERIAL_SET_RTS \
    103   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 12, METHOD_BUFFERED, FILE_ANY_ACCESS)
    104 #define IOCTL_SERIAL_SET_TIMEOUTS \
    105   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 7, METHOD_BUFFERED, FILE_ANY_ACCESS)
    106 #define IOCTL_SERIAL_SET_WAIT_MASK \
    107   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 17, METHOD_BUFFERED, FILE_ANY_ACCESS)
    108 #define IOCTL_SERIAL_SET_XOFF \
    109   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 14, METHOD_BUFFERED, FILE_ANY_ACCESS)
    110 #define IOCTL_SERIAL_SET_XON \
    111   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 15, METHOD_BUFFERED, FILE_ANY_ACCESS)
    112 #define IOCTL_SERIAL_WAIT_ON_MASK \
    113   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 18, METHOD_BUFFERED, FILE_ANY_ACCESS)
    114 #define IOCTL_SERIAL_XOFF_COUNTER \
    115   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 28, METHOD_BUFFERED, FILE_ANY_ACCESS)
    116 
    117 #define IOCTL_SERIAL_INTERNAL_BASIC_SETTINGS \
    118   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 3, METHOD_BUFFERED, FILE_ANY_ACCESS)
    119 #define IOCTL_SERIAL_INTERNAL_CANCEL_WAIT_WAKE \
    120   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
    121 #define IOCTL_SERIAL_INTERNAL_DO_WAIT_WAKE \
    122   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
    123 #define IOCTL_SERIAL_INTERNAL_RESTORE_SETTINGS \
    124   CTL_CODE (FILE_DEVICE_SERIAL_PORT, 4, METHOD_BUFFERED, FILE_ANY_ACCESS)
    125 
    126 #define IOCTL_SERENUM_PORT_DESC \
    127   CTL_CODE (FILE_DEVICE_SERENUM, 130, METHOD_BUFFERED, FILE_ANY_ACCESS)
    128 #define IOCTL_SERENUM_GET_PORT_NAME \
    129   CTL_CODE (FILE_DEVICE_SERENUM, 131, METHOD_BUFFERED, FILE_ANY_ACCESS)
    130 
    131 #define IOCTL_INTERNAL_SERENUM_REMOVE_SELF \
    132   CTL_CODE (FILE_DEVICE_SERENUM, 129, METHOD_NEITHER, FILE_ANY_ACCESS)
    133 
    134 
    135 typedef struct _SERIAL_BAUD_RATE {
    136   ULONG  BaudRate;
    137 } SERIAL_BAUD_RATE, *PSERIAL_BAUD_RATE;
    138 
    139 /* SERIAL_BAUD_RATE.BaudRate constants */
    140 #define SERIAL_BAUD_075                   0x00000001
    141 #define SERIAL_BAUD_110                   0x00000002
    142 #define SERIAL_BAUD_134_5                 0x00000004
    143 #define SERIAL_BAUD_150                   0x00000008
    144 #define SERIAL_BAUD_300                   0x00000010
    145 #define SERIAL_BAUD_600                   0x00000020
    146 #define SERIAL_BAUD_1200                  0x00000040
    147 #define SERIAL_BAUD_1800                  0x00000080
    148 #define SERIAL_BAUD_2400                  0x00000100
    149 #define SERIAL_BAUD_4800                  0x00000200
    150 #define SERIAL_BAUD_7200                  0x00000400
    151 #define SERIAL_BAUD_9600                  0x00000800
    152 #define SERIAL_BAUD_14400                 0x00001000
    153 #define SERIAL_BAUD_19200                 0x00002000
    154 #define SERIAL_BAUD_38400                 0x00004000
    155 #define SERIAL_BAUD_56K                   0x00008000
    156 #define SERIAL_BAUD_128K                  0x00010000
    157 #define SERIAL_BAUD_115200                0x00020000
    158 #define SERIAL_BAUD_57600                 0x00040000
    159 #define SERIAL_BAUD_USER                  0x10000000
    160 
    161 typedef struct _SERIAL_CHARS {
    162   UCHAR  EofChar;
    163   UCHAR  ErrorChar;
    164   UCHAR  BreakChar;
    165   UCHAR  EventChar;
    166   UCHAR  XonChar;
    167   UCHAR  XoffChar;
    168 } SERIAL_CHARS, *PSERIAL_CHARS;
    169 
    170 typedef struct _SERIAL_STATUS {
    171   ULONG  Errors;
    172   ULONG  HoldReasons;
    173   ULONG  AmountInInQueue;
    174   ULONG  AmountInOutQueue;
    175   BOOLEAN  EofReceived;
    176   BOOLEAN  WaitForImmediate;
    177 } SERIAL_STATUS, *PSERIAL_STATUS;
    178 
    179 typedef struct _SERIAL_HANDFLOW {
    180 	ULONG  ControlHandShake;
    181 	ULONG  FlowReplace;
    182 	LONG  XonLimit;
    183 	LONG  XoffLimit;
    184 } SERIAL_HANDFLOW, *PSERIAL_HANDFLOW;
    185 
    186 #define SERIAL_DTR_MASK                   0x00000003
    187 #define SERIAL_DTR_CONTROL                0x00000001
    188 #define SERIAL_DTR_HANDSHAKE              0x00000002
    189 #define SERIAL_CTS_HANDSHAKE              0x00000008
    190 #define SERIAL_DSR_HANDSHAKE              0x00000010
    191 #define SERIAL_DCD_HANDSHAKE              0x00000020
    192 #define SERIAL_OUT_HANDSHAKEMASK          0x00000038
    193 #define SERIAL_DSR_SENSITIVITY            0x00000040
    194 #define SERIAL_ERROR_ABORT                0x80000000
    195 #define SERIAL_CONTROL_INVALID            0x7fffff84
    196 #define SERIAL_AUTO_TRANSMIT              0x00000001
    197 #define SERIAL_AUTO_RECEIVE               0x00000002
    198 #define SERIAL_ERROR_CHAR                 0x00000004
    199 #define SERIAL_NULL_STRIPPING             0x00000008
    200 #define SERIAL_BREAK_CHAR                 0x00000010
    201 #define SERIAL_RTS_MASK                   0x000000c0
    202 #define SERIAL_RTS_CONTROL                0x00000040
    203 #define SERIAL_RTS_HANDSHAKE              0x00000080
    204 #define SERIAL_TRANSMIT_TOGGLE            0x000000c0
    205 #define SERIAL_XOFF_CONTINUE              0x80000000
    206 #define SERIAL_FLOW_INVALID               0x7fffff20
    207 
    208 typedef struct _SERIAL_LINE_CONTROL {
    209   UCHAR  StopBits;
    210   UCHAR  Parity;
    211   UCHAR  WordLength;
    212 } SERIAL_LINE_CONTROL, *PSERIAL_LINE_CONTROL;
    213 
    214 /* SERIAL_LINE_CONTROL.StopBits constants */
    215 #define STOP_BIT_1                        0x00
    216 #define STOP_BITS_1_5                     0x01
    217 #define STOP_BITS_2                       0x02
    218 
    219 /* SERIAL_LINE_CONTROL.Parity constants */
    220 #define NO_PARITY                         0x00
    221 #define ODD_PARITY                        0x01
    222 #define EVEN_PARITY                       0x02
    223 #define MARK_PARITY                       0x03
    224 #define SPACE_PARITY                      0x04
    225 
    226 /* IOCTL_SERIAL_(GET_MODEM_CONTROL, SET_MODEM_CONTROL) flags */
    227 #define SERIAL_IOC_MCR_DTR                0x00000001
    228 #define SERIAL_IOC_MCR_RTS                0x00000002
    229 #define SERIAL_IOC_MCR_OUT1               0x00000004
    230 #define SERIAL_IOC_MCR_OUT2               0x00000008
    231 #define SERIAL_IOC_MCR_LOOP               0x00000010
    232 
    233 typedef struct _SERIAL_COMMPROP {
    234   USHORT  PacketLength;
    235   USHORT  PacketVersion;
    236   ULONG  ServiceMask;
    237   ULONG  Reserved1;
    238   ULONG  MaxTxQueue;
    239   ULONG  MaxRxQueue;
    240   ULONG  MaxBaud;
    241   ULONG  ProvSubType;
    242   ULONG  ProvCapabilities;
    243   ULONG  SettableParams;
    244   ULONG  SettableBaud;
    245   USHORT  SettableData;
    246   USHORT  SettableStopParity;
    247   ULONG  CurrentTxQueue;
    248   ULONG  CurrentRxQueue;
    249   ULONG  ProvSpec1;
    250   ULONG  ProvSpec2;
    251   WCHAR  ProvChar[1];
    252 } SERIAL_COMMPROP, *PSERIAL_COMMPROP;
    253 
    254 /* SERIAL_COMMPROP.SettableParams flags */
    255 #define SERIAL_SP_PARITY                  0x0001
    256 #define SERIAL_SP_BAUD                    0x0002
    257 #define SERIAL_SP_DATABITS                0x0004
    258 #define SERIAL_SP_STOPBITS                0x0008
    259 #define SERIAL_SP_HANDSHAKING             0x0010
    260 #define SERIAL_SP_PARITY_CHECK            0x0020
    261 #define SERIAL_SP_CARRIER_DETECT          0x0040
    262 
    263 /* SERIAL_COMMPROP.ProvCapabilities flags */
    264 #define SERIAL_PCF_DTRDSR                 0x00000001
    265 #define SERIAL_PCF_RTSCTS                 0x00000002
    266 #define SERIAL_PCF_CD                     0x00000004
    267 #define SERIAL_PCF_PARITY_CHECK           0x00000008
    268 #define SERIAL_PCF_XONXOFF                0x00000010
    269 #define SERIAL_PCF_SETXCHAR               0x00000020
    270 #define SERIAL_PCF_TOTALTIMEOUTS          0x00000040
    271 #define SERIAL_PCF_INTTIMEOUTS            0x00000080
    272 #define SERIAL_PCF_SPECIALCHARS           0x00000100
    273 #define SERIAL_PCF_16BITMODE              0x00000200
    274 
    275 /* SERIAL_COMMPROP.SettableData flags */
    276 #define SERIAL_DATABITS_5                 0x0001
    277 #define SERIAL_DATABITS_6                 0x0002
    278 #define SERIAL_DATABITS_7                 0x0004
    279 #define SERIAL_DATABITS_8                 0x0008
    280 #define SERIAL_DATABITS_16                0x0010
    281 #define SERIAL_DATABITS_16X               0x0020
    282 
    283 /* SERIAL_COMMPROP.SettableStopParity flags */
    284 #define SERIAL_STOPBITS_10                0x0001
    285 #define SERIAL_STOPBITS_15                0x0002
    286 #define SERIAL_STOPBITS_20                0x0004
    287 #define SERIAL_PARITY_NONE                0x0100
    288 #define SERIAL_PARITY_ODD                 0x0200
    289 #define SERIAL_PARITY_EVEN                0x0400
    290 #define SERIAL_PARITY_MARK                0x0800
    291 #define SERIAL_PARITY_SPACE               0x1000
    292 
    293 typedef struct _SERIALPERF_STATS {
    294   ULONG  ReceivedCount;
    295   ULONG  TransmittedCount;
    296   ULONG  FrameErrorCount;
    297   ULONG  SerialOverrunErrorCount;
    298   ULONG  BufferOverrunErrorCount;
    299   ULONG  ParityErrorCount;
    300 } SERIALPERF_STATS, *PSERIALPERF_STATS;
    301 
    302 typedef struct _SERIAL_TIMEOUTS {
    303   ULONG  ReadIntervalTimeout;
    304   ULONG  ReadTotalTimeoutMultiplier;
    305   ULONG  ReadTotalTimeoutConstant;
    306   ULONG  WriteTotalTimeoutMultiplier;
    307   ULONG  WriteTotalTimeoutConstant;
    308 } SERIAL_TIMEOUTS, *PSERIAL_TIMEOUTS;
    309 
    310 /* IOCTL_SERIAL_(GET_WAIT_MASK, SET_WAIT_MASK, WAIT_ON_MASK) flags */
    311 #define SERIAL_EV_RXCHAR                  0x0001
    312 #define SERIAL_EV_RXFLAG                  0x0002
    313 #define SERIAL_EV_TXEMPTY                 0x0004
    314 #define SERIAL_EV_CTS                     0x0008
    315 #define SERIAL_EV_DSR                     0x0010
    316 #define SERIAL_EV_RLSD                    0x0020
    317 #define SERIAL_EV_BREAK                   0x0040
    318 #define SERIAL_EV_ERR                     0x0080
    319 #define SERIAL_EV_RING                    0x0100
    320 #define SERIAL_EV_PERR                    0x0200
    321 #define SERIAL_EV_RX80FULL                0x0400
    322 #define SERIAL_EV_EVENT1                  0x0800
    323 #define SERIAL_EV_EVENT2                  0x1000
    324 
    325 /* IOCTL_SERIAL_LSRMST_INSERT constants */
    326 #define SERIAL_LSRMST_LSR_DATA            0x01
    327 #define SERIAL_LSRMST_LSR_NODATA          0x02
    328 #define SERIAL_LSRMST_MST                 0x03
    329 #define SERIAL_LSRMST_ESCAPE              0x00
    330 
    331 /* IOCTL_SERIAL_PURGE constants */
    332 #define SERIAL_PURGE_TXABORT              0x00000001
    333 #define SERIAL_PURGE_RXABORT              0x00000002
    334 #define SERIAL_PURGE_TXCLEAR              0x00000004
    335 #define SERIAL_PURGE_RXCLEAR              0x00000008
    336 
    337 /* IOCTL_SERIAL_SET_FIFO_CONTROL constants */
    338 #define SERIAL_IOC_FCR_FIFO_ENABLE        0x00000001
    339 #define SERIAL_IOC_FCR_RCVR_RESET         0x00000002
    340 #define SERIAL_IOC_FCR_XMIT_RESET         0x00000004
    341 #define SERIAL_IOC_FCR_DMA_MODE           0x00000008
    342 #define SERIAL_IOC_FCR_RES1               0x00000010
    343 #define SERIAL_IOC_FCR_RES2               0x00000020
    344 #define SERIAL_IOC_FCR_RCVR_TRIGGER_LSB   0x00000040
    345 #define SERIAL_IOC_FCR_RCVR_TRIGGER_MSB   0x00000080
    346 
    347 typedef struct _SERIAL_QUEUE_SIZE {
    348   ULONG  InSize;
    349   ULONG  OutSize;
    350 } SERIAL_QUEUE_SIZE, *PSERIAL_QUEUE_SIZE;
    351 
    352 typedef struct _SERIAL_XOFF_COUNTER {
    353 	ULONG  Timeout;
    354 	LONG  Counter;
    355 	UCHAR  XoffChar;
    356 } SERIAL_XOFF_COUNTER, *PSERIAL_XOFF_COUNTER;
    357 
    358 typedef struct _SERIAL_BASIC_SETTINGS {
    359 	SERIAL_TIMEOUTS  Timeouts;
    360 	SERIAL_HANDFLOW  HandFlow;
    361 	ULONG  RxFifo;
    362 	ULONG  TxFifo;
    363 } SERIAL_BASIC_SETTINGS, *PSERIAL_BASIC_SETTINGS;
    364 
    365 typedef struct _SERENUM_PORT_DESC {
    366 	ULONG  Size;
    367 	PVOID  PortHandle;
    368 	PHYSICAL_ADDRESS  PortAddress;
    369 	USHORT  Reserved[1];
    370 } SERENUM_PORT_DESC, *PSERENUM_PORT_DESC;
    371 
    372 typedef UCHAR
    373 (NTAPI*PSERENUM_READPORT)(
    374   PVOID  SerPortAddress);
    375 
    376 typedef VOID
    377 (NTAPI*PSERENUM_WRITEPORT)(
    378   PVOID  SerPortAddress,
    379   UCHAR  Value);
    380 
    381 typedef enum _SERENUM_PORTION {
    382   SerenumFirstHalf,
    383   SerenumSecondHalf,
    384   SerenumWhole
    385 } SERENUM_PORTION;
    386 
    387 typedef struct _SERENUM_PORT_PARAMETERS {
    388   ULONG  Size;
    389   PSERENUM_READPORT  ReadAccessor;
    390   PSERENUM_WRITEPORT  WriteAccessor;
    391   PVOID  SerPortAddress;
    392   PVOID  HardwareHandle;
    393   SERENUM_PORTION  Portion;
    394   USHORT  NumberAxis;
    395   USHORT  Reserved[3];
    396 } SERENUM_PORT_PARAMETERS, *PSERENUM_PORT_PARAMETERS;
    397 
    398 #define SERIAL_ERROR_BREAK                0x00000001
    399 #define SERIAL_ERROR_FRAMING              0x00000002
    400 #define SERIAL_ERROR_OVERRUN              0x00000004
    401 #define SERIAL_ERROR_QUEUEOVERRUN         0x00000008
    402 #define SERIAL_ERROR_PARITY               0x00000010
    403 
    404 #define SERIAL_SP_UNSPECIFIED             0x00000000
    405 #define SERIAL_SP_RS232                   0x00000001
    406 #define SERIAL_SP_PARALLEL                0x00000002
    407 #define SERIAL_SP_RS422                   0x00000003
    408 #define SERIAL_SP_RS423                   0x00000004
    409 #define SERIAL_SP_RS449                   0x00000005
    410 #define SERIAL_SP_MODEM                   0X00000006
    411 #define SERIAL_SP_FAX                     0x00000021
    412 #define SERIAL_SP_SCANNER                 0x00000022
    413 #define SERIAL_SP_BRIDGE                  0x00000100
    414 #define SERIAL_SP_LAT                     0x00000101
    415 #define SERIAL_SP_TELNET                  0x00000102
    416 #define SERIAL_SP_X25                     0x00000103
    417 #define SERIAL_SP_SERIALCOMM              0x00000001
    418 
    419 #define SERIAL_TX_WAITING_FOR_CTS         0x00000001
    420 #define SERIAL_TX_WAITING_FOR_DSR         0x00000002
    421 #define SERIAL_TX_WAITING_FOR_DCD         0x00000004
    422 #define SERIAL_TX_WAITING_FOR_XON         0x00000008
    423 #define SERIAL_TX_WAITING_XOFF_SENT       0x00000010
    424 #define SERIAL_TX_WAITING_ON_BREAK        0x00000020
    425 #define SERIAL_RX_WAITING_FOR_DSR         0x00000040
    426 
    427 #define SERIAL_DTR_STATE                  0x00000001
    428 #define SERIAL_RTS_STATE                  0x00000002
    429 #define SERIAL_CTS_STATE                  0x00000010
    430 #define SERIAL_DSR_STATE                  0x00000020
    431 #define SERIAL_RI_STATE                   0x00000040
    432 #define SERIAL_DCD_STATE                  0x00000080
    433 
    434 typedef struct _SERIALCONFIG {
    435   ULONG  Size;
    436   USHORT  Version;
    437   ULONG  SubType;
    438   ULONG  ProvOffset;
    439   ULONG  ProviderSize;
    440   WCHAR  ProviderData[1];
    441 } SERIALCONFIG,*PSERIALCONFIG;
    442 
    443 #ifdef __cplusplus
    444 }
    445 #endif
    446 
    447 #endif /* _NTDDSER_ */
    448