ReactOS 0.4.15-dev-8408-g466a198
settings.c
Go to the documentation of this file.
1/*
2 *
3 * COPYRIGHT: See COPYING in the top level directory
4 * PROJECT: ReactOS kernel
5 * FILE: drivers/dd/sndblst/settings.c
6 * PURPOSE: MPU-401 MIDI device driver setting management
7 * PROGRAMMER: Andrew Greenwood
8 * UPDATE HISTORY:
9 * Sept 28, 2003: Created
10 */
11
12#include <ntddk.h>
13#include "sndblst.h"
14#include "sbdebug.h" // our own debug helper
15
16
17#if 0
19OpenDevicesKey(
22/*
23 Description:
24 Create a volatile key under this driver's Services node to contain
25 the device name list.
26
27 Parameters:
28 RegistryPath The location of the registry entry
29 Key The key in the registry
30
31 Return Value:
32 NT status STATUS_SUCCESS if successful (duh...)
33*/
34{
35 NTSTATUS s;
38 UNICODE_STRING uStr;
39
40 // Attempt to open the key
41
43
46
47 s = ZwOpenKey(&hKey, KEY_CREATE_SUB_KEY, &oa);
48
49 if (! NT_SUCCESS(s))
50 return s; // Problem
51
52
53 // Now create sub key
54
56
59
60 s = ZwCreateKey(Key, KEY_ALL_ACCESS, &oa, 0, NULL, REG_OPTION_VOLATILE,
61 NULL);
62
64
65 return s;
66}
67#endif
68
69
72 IN PWSTR SubKey,
75/*
76 Description:
77 Enumerate the device subkeys in the driver's registry entry, and
78 call the specified callback routine for each device.
79
80 Parameters:
81 RegistryPath The location of the registry entry
82 Subkey The device's subkey
83 Callback A routine called for each device
84 Context ???
85
86 Return Value:
87 NT status STATUS_SUCCESS if successful
88*/
89{
90 NTSTATUS s;
92 HANDLE hKey, hSubKey;
94 ULONG i;
95
96 // Attempt to open the key
97
100
101 s = ZwOpenKey(&hKey, KEY_READ, &oa);
102
103 TEST_STATUS(s); // debugging
104
105 if (! NT_SUCCESS(s))
106 return s; // Problem
107
109
110 DPRINT("Subkey: %wZ\n", &SubkeyName);
111
114
115 s = ZwOpenKey(&hSubKey, KEY_ENUMERATE_SUB_KEYS, &oa);
116
117 ZwClose(hKey);
118
119 TEST_STATUS(s); // debugging
120
121 if (! NT_SUCCESS(s))
122 return s;
123
124
125 // And now, the enumeration
126
127 for (i = 0;; i ++)
128 {
132 ULONG Size = 0;
133 PWSTR Pos;
134 PWSTR Name;
135
136 // Find the length of the subkey data
137
138// Info.NameLength = 0; // TEMPORARY!
139
140 s = ZwEnumerateKey(hSubKey, i, KeyBasicInformation, &Info,
141 sizeof(Info), &ResultLength);
142
144 break;
145
146 DPRINT("Found an entry, allocating memory...\n");
147
148// Size = Info.NameLength + FIELD_OFFSET(KEY_BASIC_INFORMATION, Name[0]);
150
151 DPRINT("Size is %d\n", Size);
152
154
155 if (pInfo == NULL)
156 {
157 DPRINT("INSUFFICIENT RESOURCES!\n");
159 break;
160 }
161
162 DPRINT("Re-enumerating...\n");
163
164 s = ZwEnumerateKey(hSubKey, i, KeyBasicInformation, pInfo, Size,
165 &ResultLength);
166
167// TEST_STATUS(s); // debugging
168
169 if (! NT_SUCCESS(s))
170 {
171 ExFreePool((PVOID) pInfo);
173 break;
174 }
175
176 DPRINT("Allocating memory for name...\n");
177
179 RegistryPath->Length + sizeof(WCHAR) +
180 SubkeyName.Length + sizeof(WCHAR) +
181 pInfo->NameLength + sizeof(UNICODE_NULL));
182
183 if (Name == NULL)
184 {
185 DPRINT("INSUFFICIENT RESOURCES!");
186 ExFreePool((PVOID) pInfo);
188 }
189
190 // Copy the key name
192 Pos = Name + (RegistryPath->Length / sizeof(WCHAR));
193 Pos[0] = '\\';
194 Pos++;
195
196 // Copy the parameters sub key name
197 RtlCopyMemory((PVOID)Pos, (PVOID)SubKey, SubkeyName.Length); //SubkeyName?
198 Pos += SubkeyName.Length / sizeof(WCHAR);
199 Pos[0] = '\\';
200 Pos ++;
201
202 // Copy the device sub key name
203 RtlCopyMemory((PVOID)Pos, (PVOID)pInfo->Name, pInfo->NameLength);
204 Pos += pInfo->NameLength / sizeof(WCHAR);
205 Pos[0] = UNICODE_NULL;
206
207 ExFreePool((PVOID)pInfo);
208
209 DPRINT("Calling callback...\n");
210
211 s = (*Callback)(Name, Context);
212
213 if (! NT_SUCCESS(s))
214 { DPRINT("Callback FAILED\n");
215 break;}
216 }
217
218 ZwClose(hSubKey);
219
220 DPRINT("%d device registry keys found\n", i);
221
222 if ((i == 0) && (s == STATUS_NO_MORE_ENTRIES))
224
226}
227
228
229
237/*
238 Description:
239 Read the settings for a particular device
240
241 Parameters:
242 ValueName The value to read from the registry
243 ValueType ?
244 ValueData ?
245 ValueLength ?
246 Context The configuration structure to write to
247 EntryContext ?
248
249 Return Value:
250 NT status STATUS_SUCCESS if successful
251*/
252{
254
255 if (ValueType == REG_DWORD)
256 {
258 {
259 DeviceInfo->Port = *(PULONG) ValueData;
260 DPRINT("Registry port = 0x%x\n", DeviceInfo->Port);
261 }
262
263 // More to come... (config.c)
264 }
265
266 else
267 {
268 // ?
269 }
270
271 return STATUS_SUCCESS;
272}
273
274
275#if 0
278 IN ULONG Port,
279 IN ULONG IRQ,
280 IN ULONG DMA)
281/*
282 Description:
283 Saves the settings for a particular device
284
285 Parameters:
286 RegistryPath Where to save the settings to
287 Port The device's port number
288 IRQ The device's interrupt number
289 DMA The device's DMA channel
290
291 Return Value:
292 NT status STATUS_SUCCESS if successful
293*/
294{
295 DPRINT("SaveSettings() unimplemented\n");
296
297// UNIMPLEMENTED;
298
299 return STATUS_SUCCESS;
300}
301#endif
struct NameRec_ * Name
Definition: cdprocs.h:460
void SaveSettings(void)
Definition: settings.c:115
void LoadSettings(void)
Definition: settings.c:53
LONG NTSTATUS
Definition: precomp.h:26
_In_opt_ PWSTR SubkeyName
Definition: cdrom.h:960
ush Pos
Definition: deflate.h:92
#define NULL
Definition: types.h:112
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:33
NTSTATUS NTAPI EnumDeviceKeys(IN PUNICODE_STRING RegistryPath, IN PWSTR SubKey, IN PREGISTRY_CALLBACK_ROUTINE Callback, IN PVOID Context)
Definition: settings.c:73
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define PagedPool
Definition: env_spec_w32.h:308
#define ExAllocatePool(type, size)
Definition: fbtusb.h:44
FxAutoRegKey hKey
GLdouble s
Definition: gl.h:2039
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
CPPORT Port[4]
Definition: headless.c:35
_In_ GUID _In_ PVOID ValueData
Definition: hubbusif.h:312
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
#define REGISTRY_PORT
Definition: mpu401.h:25
REGISTRY_CALLBACK_ROUTINE * PREGISTRY_CALLBACK_ROUTINE
Definition: mpu401.h:121
#define DEVICE_SUBKEY
Definition: mpu401.h:22
#define TEST_STATUS(s)
Definition: sbdebug.h:2
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
_In_ PCWSTR _Inout_ _At_ QueryTable EntryContext
Definition: rtlfuncs.h:4219
@ KeyBasicInformation
Definition: nt_native.h:1131
#define KEY_ALL_ACCESS
Definition: nt_native.h:1041
#define KEY_READ
Definition: nt_native.h:1023
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define KEY_CREATE_SUB_KEY
Definition: nt_native.h:1018
struct _KEY_BASIC_INFORMATION * PKEY_BASIC_INFORMATION
#define KEY_ENUMERATE_SUB_KEYS
Definition: nt_native.h:1019
#define REG_OPTION_VOLATILE
Definition: nt_native.h:1060
#define UNICODE_NULL
PVOID *typedef PHANDLE
Definition: ntsecpkg.h:455
#define STATUS_INTERNAL_ERROR
Definition: ntstatus.h:465
#define STATUS_NO_MORE_ENTRIES
Definition: ntstatus.h:205
#define STATUS_DEVICE_CONFIGURATION_ERROR
Definition: ntstatus.h:619
#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)
#define STATUS_SUCCESS
Definition: shellext.h:65
#define DPRINT
Definition: sndvol32.h:73
uint16_t * PWSTR
Definition: typedefs.h:56
uint32_t * PULONG
Definition: typedefs.h:59
#define FIELD_OFFSET(t, f)
Definition: typedefs.h:255
#define NTAPI
Definition: typedefs.h:36
#define RtlCopyMemory(Destination, Source, Length)
Definition: typedefs.h:263
#define IN
Definition: typedefs.h:39
uint32_t ULONG
Definition: typedefs.h:59
#define OUT
Definition: typedefs.h:40
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
_Must_inspect_result_ _In_ WDFCHILDLIST _In_ PWDF_CHILD_LIST_ITERATOR _Out_ WDFDEVICE _Inout_opt_ PWDF_CHILD_RETRIEVE_INFO Info
Definition: wdfchildlist.h:690
_Must_inspect_result_ _In_ WDFDEVICE _In_ DEVICE_REGISTRY_PROPERTY _In_ ULONG _Out_ PULONG ResultLength
Definition: wdfdevice.h:3776
_Must_inspect_result_ _In_ WDFDEVICE _In_ PWDF_DEVICE_PROPERTY_DATA _In_ DEVPROPTYPE _In_ ULONG Size
Definition: wdfdevice.h:4533
_Must_inspect_result_ _In_ PDRIVER_OBJECT _In_ PCUNICODE_STRING RegistryPath
Definition: wdfdriver.h:215
_In_ WDFINTERRUPT _In_ PFN_WDF_INTERRUPT_SYNCHRONIZE Callback
Definition: wdfinterrupt.h:458
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING _In_ ULONG _Out_opt_ PULONG _Out_opt_ PULONG ValueType
Definition: wdfregistry.h:282
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:243
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING _In_ ULONG ValueLength
Definition: wdfregistry.h:275
__wchar_t WCHAR
Definition: xmlstorage.h:180