ReactOS  0.4.14-dev-293-g2b39b42
mpu401.h File Reference
#include "../../../dll/win32/mmdrv/mmdef.h"
Include dependency graph for mpu401.h:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes

struct  _DEVICE_EXTENSION
 
struct  _DEVICE_INSTANCE
 

Macros

#define DEFAULT_PORT   0x330
 
#define DEFAULT_IRQ   9
 
#define DEVICE_SUBKEY   L"Devices"
 
#define PARMS_SUBKEY   L"Parameters"
 
#define REGISTRY_PORT   L"Port"
 
#define MPU401_PORT   DEFAULT_PORT
 
#define MPU401_IRQ   DEFAULT_IRQ
 
#define MPU401_TIMEOUT   10000
 
#define MPU401_WRITE_DATA(bp, x)   WRITE_PORT_UCHAR((PUCHAR) bp, x)
 
#define MPU401_READ_DATA(bp)   READ_PORT_UCHAR((PUCHAR) bp)
 
#define MPU401_WRITE_COMMAND(bp, x)   WRITE_PORT_UCHAR((PUCHAR) bp+1, x)
 
#define MPU401_READ_STATUS(bp)   READ_PORT_UCHAR((PUCHAR) bp+1)
 
#define MPU401_READY_TO_SEND(bp)   MPU401_READ_STATUS(bp) & 0x80
 
#define MPU401_READY_TO_RECEIVE(bp)   MPU401_READ_STATUS(bp) & 0x40
 
#define MPU401_WRITE_BYTE(bp, x)   if (WaitToSend(bp)) MPU401_WRITE_DATA(bp, x)
 
#define MPU401_WRITE_MESSAGE(bp, status, da, db)
 

Typedefs

typedef struct _DEVICE_EXTENSION DEVICE_EXTENSION
 
typedef struct _DEVICE_EXTENSIONPDEVICE_EXTENSION
 
typedef struct _DEVICE_INSTANCE DEVICE_INSTANCE
 
typedef struct _DEVICE_INSTANCEPDEVICE_INSTANCE
 
typedef NTSTATUS REGISTRY_CALLBACK_ROUTINE(PWSTR RegistryPath, PVOID Context)
 
typedef REGISTRY_CALLBACK_ROUTINEPREGISTRY_CALLBACK_ROUTINE
 

Functions

BOOLEAN WaitToSend (ULONG BasePort)
 
BOOLEAN WaitToReceive (ULONG BasePort)
 
BOOLEAN InitUARTMode (ULONG BasePort)
 
NTSTATUS NTAPI EnumDeviceKeys (IN PUNICODE_STRING RegistryPath, IN PWSTR SubKey, IN PREGISTRY_CALLBACK_ROUTINE Callback, IN PVOID Context)
 
NTSTATUS NTAPI LoadSettings (IN PWSTR ValueName, IN ULONG ValueType, IN PVOID ValueData, IN ULONG ValueLength, IN PVOID Context, IN PVOID EntryContext)
 
NTSTATUS NTAPI DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
 

Macro Definition Documentation

◆ DEFAULT_IRQ

#define DEFAULT_IRQ   9

Definition at line 20 of file mpu401.h.

◆ DEFAULT_PORT

#define DEFAULT_PORT   0x330

Definition at line 19 of file mpu401.h.

◆ DEVICE_SUBKEY

#define DEVICE_SUBKEY   L"Devices"

Definition at line 22 of file mpu401.h.

◆ MPU401_IRQ

#define MPU401_IRQ   DEFAULT_IRQ

Definition at line 29 of file mpu401.h.

◆ MPU401_PORT

#define MPU401_PORT   DEFAULT_PORT

Definition at line 28 of file mpu401.h.

◆ MPU401_READ_DATA

#define MPU401_READ_DATA (   bp)    READ_PORT_UCHAR((PUCHAR) bp)

Definition at line 54 of file mpu401.h.

◆ MPU401_READ_STATUS

#define MPU401_READ_STATUS (   bp)    READ_PORT_UCHAR((PUCHAR) bp+1)

Definition at line 56 of file mpu401.h.

◆ MPU401_READY_TO_RECEIVE

#define MPU401_READY_TO_RECEIVE (   bp)    MPU401_READ_STATUS(bp) & 0x40

Definition at line 64 of file mpu401.h.

◆ MPU401_READY_TO_SEND

#define MPU401_READY_TO_SEND (   bp)    MPU401_READ_STATUS(bp) & 0x80

Definition at line 61 of file mpu401.h.

◆ MPU401_TIMEOUT

#define MPU401_TIMEOUT   10000

Definition at line 31 of file mpu401.h.

◆ MPU401_WRITE_BYTE

#define MPU401_WRITE_BYTE (   bp,
  x 
)    if (WaitToSend(bp)) MPU401_WRITE_DATA(bp, x)

Definition at line 68 of file mpu401.h.

◆ MPU401_WRITE_COMMAND

#define MPU401_WRITE_COMMAND (   bp,
  x 
)    WRITE_PORT_UCHAR((PUCHAR) bp+1, x)

Definition at line 55 of file mpu401.h.

◆ MPU401_WRITE_DATA

#define MPU401_WRITE_DATA (   bp,
  x 
)    WRITE_PORT_UCHAR((PUCHAR) bp, x)

Definition at line 53 of file mpu401.h.

◆ MPU401_WRITE_MESSAGE

#define MPU401_WRITE_MESSAGE (   bp,
  status,
  da,
  db 
)
Value:
MPU401_WRITE(bp, status); \
MPU401_WRITE(bp, da); \
MPU401_WRITE(bp, db)
Definition: ps.c:97

Definition at line 71 of file mpu401.h.

◆ PARMS_SUBKEY

#define PARMS_SUBKEY   L"Parameters"

Definition at line 23 of file mpu401.h.

◆ REGISTRY_PORT

#define REGISTRY_PORT   L"Port"

Definition at line 25 of file mpu401.h.

Typedef Documentation

◆ DEVICE_EXTENSION

◆ DEVICE_INSTANCE

◆ PDEVICE_EXTENSION

◆ PDEVICE_INSTANCE

◆ PREGISTRY_CALLBACK_ROUTINE

Definition at line 121 of file mpu401.h.

◆ REGISTRY_CALLBACK_ROUTINE

typedef NTSTATUS REGISTRY_CALLBACK_ROUTINE(PWSTR RegistryPath, PVOID Context)

Definition at line 120 of file mpu401.h.

Function Documentation

◆ DriverEntry()

NTSTATUS NTAPI DriverEntry ( PDRIVER_OBJECT  DriverObject,
PUNICODE_STRING  RegistryPath 
)

Definition at line 16 of file battc.c.

18 {
19  DPRINT("Battery class driver initialized\n");
20 
21  return STATUS_SUCCESS;
22 }
void DPRINT(...)
Definition: polytest.cpp:61
return STATUS_SUCCESS
Definition: btrfs.c:2966

◆ EnumDeviceKeys()

NTSTATUS NTAPI EnumDeviceKeys ( IN PUNICODE_STRING  RegistryPath,
IN PWSTR  SubKey,
IN PREGISTRY_CALLBACK_ROUTINE  Callback,
IN PVOID  Context 
)

Definition at line 73 of file settings.c.

92 {
93  NTSTATUS s;
95  HANDLE hKey, hSubKey;
97  ULONG i;
98 
99  // Attempt to open the key
100 
103 
104  s = ZwOpenKey(&hKey, KEY_READ, &oa);
105 
106  TEST_STATUS(s); // debugging
107 
108  if (! NT_SUCCESS(s))
109  return s; // Problem
110 
112 
113  DPRINT("Subkey: %wZ\n", &SubkeyName);
114 
116  hKey, (PSECURITY_DESCRIPTOR)NULL);
117 
118  s = ZwOpenKey(&hSubKey, KEY_ENUMERATE_SUB_KEYS, &oa);
119 
120  ZwClose(hKey);
121 
122  TEST_STATUS(s); // debugging
123 
124  if (! NT_SUCCESS(s))
125  return s;
126 
127 
128  // And now, the enumeration
129 
130  for (i = 0;; i ++)
131  {
134  ULONG ResultLength = 0;
135  ULONG Size = 0;
136  PWSTR Pos;
137  PWSTR Name;
138 
139  // Find the length of the subkey data
140 
141 // Info.NameLength = 0; // TEMPORARY!
142 
143  s = ZwEnumerateKey(hSubKey, i, KeyBasicInformation, &Info,
144  sizeof(Info), &ResultLength);
145 
146  if (s == STATUS_NO_MORE_ENTRIES)
147  break;
148 
149  DPRINT("Found an entry, allocating memory...\n");
150 
151 // Size = Info.NameLength + FIELD_OFFSET(KEY_BASIC_INFORMATION, Name[0]);
153 
154  DPRINT("Size is %d\n", Size);
155 
157 
158  if (pInfo == NULL)
159  {
160  DPRINT("INSUFFICIENT RESOURCES!\n");
162  break;
163  }
164 
165  DPRINT("Re-enumerating...\n");
166 
167  s = ZwEnumerateKey(hSubKey, i, KeyBasicInformation, pInfo, Size,
168  &ResultLength);
169 
170 // TEST_STATUS(s); // debugging
171 
172  if (! NT_SUCCESS(s))
173  {
174  ExFreePool((PVOID) pInfo);
176  break;
177  }
178 
179  DPRINT("Allocating memory for name...\n");
180 
182  RegistryPath->Length + sizeof(WCHAR) +
183  SubkeyName.Length + sizeof(WCHAR) +
184  pInfo->NameLength + sizeof(UNICODE_NULL));
185 
186  if (Name == NULL)
187  {
188  DPRINT("INSUFFICIENT RESOURCES!");
189  ExFreePool((PVOID) pInfo);
191  }
192 
193  // Copy the key name
195  Pos = Name + (RegistryPath->Length / sizeof(WCHAR));
196  Pos[0] = '\\';
197  Pos++;
198 
199  // Copy the parameters sub key name
200  RtlCopyMemory((PVOID)Pos, (PVOID)SubKey, SubkeyName.Length); //SubkeyName?
201  Pos += SubkeyName.Length / sizeof(WCHAR);
202  Pos[0] = '\\';
203  Pos ++;
204 
205  // Copy the device sub key name
206  RtlCopyMemory((PVOID)Pos, (PVOID)pInfo->Name, pInfo->NameLength);
207  Pos += pInfo->NameLength / sizeof(WCHAR);
208  Pos[0] = UNICODE_NULL;
209 
210  ExFreePool((PVOID)pInfo);
211 
212  DPRINT("Calling callback...\n");
213 
214  s = (*Callback)(Name, Context);
215 
216  if (! NT_SUCCESS(s))
217  { DPRINT("Callback FAILED\n");
218  break;}
219  }
220 
221  ZwClose(hSubKey);
222 
223  DPRINT("%d device registry keys found\n", i);
224 
225  if ((i == 0) && (s == STATUS_NO_MORE_ENTRIES))
227 
229 }
IN CINT OUT PVOID IN ULONG OUT PULONG ResultLength
Definition: conport.c:47
NTSYSAPI VOID NTAPI RtlCopyMemory(VOID UNALIGNED *Destination, CONST VOID UNALIGNED *Source, ULONG Length)
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
#define STATUS_NO_MORE_ENTRIES
Definition: ntstatus.h:193
#define KEY_READ
Definition: nt_native.h:1023
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
uint16_t * PWSTR
Definition: typedefs.h:54
LONG NTSTATUS
Definition: precomp.h:26
ush Pos
Definition: deflate.h:92
enum TestStatus TEST_STATUS
struct TraceInfo Info
#define STATUS_INTERNAL_ERROR
Definition: ntstatus.h:451
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define UNICODE_NULL
struct NameRec_ * Name
Definition: cdprocs.h:464
struct _KEY_BASIC_INFORMATION * PKEY_BASIC_INFORMATION
smooth NULL
Definition: ftsmooth.c:416
void DPRINT(...)
Definition: polytest.cpp:61
__wchar_t WCHAR
Definition: xmlstorage.h:180
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
GLdouble s
Definition: gl.h:2039
_In_opt_ PWSTR SubkeyName
Definition: classpnp.h:1209
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:359
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:254
struct tagContext Context
Definition: acpixf.h:1024
unsigned int ULONG
Definition: retypes.h:1
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
_In_ PUNICODE_STRING RegistryPath
Definition: wmip.h:27
#define STATUS_DEVICE_CONFIGURATION_ERROR
Definition: ntstatus.h:605
return STATUS_SUCCESS
Definition: btrfs.c:2966
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define KEY_ENUMERATE_SUB_KEYS
Definition: nt_native.h:1019

◆ InitUARTMode()

BOOLEAN InitUARTMode ( ULONG  BasePort)

Definition at line 64 of file portio.c.

65 {
66  ULONG TimeOut;
67  UCHAR Status = 0;
68 
69  DbgPrint("InitUARTMode() called\n");
70 
71  // Check if it's OK to send
72  if (! WaitToSend(BasePort))
73  return FALSE;
74 
75  DbgPrint("Resetting MPU401\n");
76 
77  // Send an MPU reset:
78  MPU401_WRITE_COMMAND(BasePort, 0xff);
79 
80  // Check if it's OK to receive (some cards will ignore the above reset
81  // command and so will not issue an ACK, so time out is NOT an error)
82  DbgPrint("Waiting for an ACK\n");
83  if (WaitToReceive(BasePort))
84  {
85  // Check to make sure the reset was acknowledged:
86  for (TimeOut = MPU401_TIMEOUT;
87  (Status = (MPU401_READ_DATA(BasePort) & 0xfe) && TimeOut > 0);
88  TimeOut --);
89  }
90 
91  DbgPrint("Entering UART mode\n");
92  // Now we kick the MPU401 into UART ("dumb") mode
93  MPU401_WRITE_COMMAND(BasePort, 0x3f);
94 
95  return TRUE;
96 }
#define TRUE
Definition: types.h:120
#define DbgPrint
Definition: loader.c:25
BOOLEAN WaitToSend(ULONG BasePort)
Definition: portio.c:16
unsigned char UCHAR
Definition: xmlstorage.h:181
Status
Definition: gdiplustypes.h:24
#define MPU401_READ_DATA(bp)
Definition: mpu401.h:54
unsigned int ULONG
Definition: retypes.h:1
BOOLEAN WaitToReceive(ULONG BasePort)
Definition: portio.c:40
#define MPU401_WRITE_COMMAND(bp, x)
Definition: mpu401.h:55
#define MPU401_TIMEOUT
Definition: mpu401.h:31

Referenced by InitDevice().

◆ LoadSettings()

NTSTATUS NTAPI LoadSettings ( IN PWSTR  ValueName,
IN ULONG  ValueType,
IN PVOID  ValueData,
IN ULONG  ValueLength,
IN PVOID  Context,
IN PVOID  EntryContext 
)

Definition at line 233 of file settings.c.

255 {
257 
258  if (ValueType == REG_DWORD)
259  {
261  {
262  DeviceInfo->Port = *(PULONG) ValueData;
263  DPRINT("Registry port = 0x%x\n", DeviceInfo->Port);
264  }
265 
266  // More to come... (config.c)
267  }
268 
269  else
270  {
271  // ?
272  }
273 
274  return STATUS_SUCCESS;
275 }
_In_ PCWSTR _In_z_ PCWSTR _In_ ULONG ValueType
Definition: rtlfuncs.h:4016
_In_ PUNICODE_STRING ValueName
Definition: cmfuncs.h:264
void DPRINT(...)
Definition: polytest.cpp:61
_In_ GUID _In_ PVOID ValueData
Definition: hubbusif.h:311
unsigned int * PULONG
Definition: retypes.h:1
struct tagContext Context
Definition: acpixf.h:1024
#define REGISTRY_PORT
Definition: mpu401.h:25
return STATUS_SUCCESS
Definition: btrfs.c:2966
#define REG_DWORD
Definition: sdbapi.c:596
_Check_return_ _CRTIMP int __cdecl _wcsicmp(_In_z_ const wchar_t *_Str1, _In_z_ const wchar_t *_Str2)

◆ WaitToReceive()

BOOLEAN WaitToReceive ( ULONG  BasePort)

Definition at line 40 of file portio.c.

41 {
42  int TimeOut;
43 
44  DbgPrint("WaitToSend ");
45 
46  // Check if it's OK to receive
47  for (TimeOut = MPU401_TIMEOUT;
48  ! MPU401_READY_TO_RECEIVE(BasePort) && TimeOut > 0;
49  TimeOut --);
50 
51  // If a time-out occurs, we report failure
52  if (! TimeOut)
53  {
54  DbgPrint("FAILED\n");
55  return FALSE;
56  }
57 
58  DbgPrint("SUCCEEDED\n");
59 
60  return TRUE;
61 }
#define TRUE
Definition: types.h:120
#define DbgPrint
Definition: loader.c:25
#define MPU401_READY_TO_RECEIVE(bp)
Definition: mpu401.h:64
#define MPU401_TIMEOUT
Definition: mpu401.h:31

Referenced by IsSpeakerEnabled().

◆ WaitToSend()

BOOLEAN WaitToSend ( ULONG  BasePort)

Definition at line 16 of file portio.c.

17 {
18  int TimeOut;
19 
20  DbgPrint("WaitToSend ");
21 
22  // Check if it's OK to send
23  for (TimeOut = MPU401_TIMEOUT;
24  ! MPU401_READY_TO_SEND(BasePort) && TimeOut > 0;
25  TimeOut --);
26 
27  // If a time-out occurs, we report failure
28  if (! TimeOut)
29  {
30  DbgPrint("FAILED\n");
31  return FALSE;
32  }
33 
34  DbgPrint("SUCCEEDED\n");
35 
36  return TRUE;
37 }
#define TRUE
Definition: types.h:120
#define DbgPrint
Definition: loader.c:25
#define MPU401_READY_TO_SEND(bp)
Definition: mpu401.h:61
#define MPU401_TIMEOUT
Definition: mpu401.h:31

Referenced by MPU401Create().