[reactos] 01/01: [HDAUDBUS] Build a device instance ID from Codec & node number. CORE-13702

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=6ec38aa94298472c844355...

commit 6ec38aa94298472c8443558b0da8f97ab332c278
Author:     Thomas Faber [e-mail]
AuthorDate: Fri Sep 27 13:13:49 2019 +0200
Commit:     Thomas Faber [e-mail]
CommitDate: Fri Sep 27 21:29:41 2019 +0200

[HDAUDBUS] Build a device instance ID from Codec & node number. CORE-13702
---
 drivers/wdm/audio/hdaudbus/hdaudbus.h |  1 +
 drivers/wdm/audio/hdaudbus/pdo.cpp    | 18 ++++++++++++------
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/wdm/audio/hdaudbus/hdaudbus.h b/drivers/wdm/audio/hdaudbus/hdaudbus.h
index 3a957c15062..e4412a5d133 100644
--- a/drivers/wdm/audio/hdaudbus/hdaudbus.h
+++ b/drivers/wdm/audio/hdaudbus/hdaudbus.h
@@ -6,6 +6,7 @@
 #include <initguid.h>
 #include <hdaudio.h>
 #include <stdio.h>
+#include <ntstrsafe.h>

#define TAG_HDA 'bADH'

diff --git a/drivers/wdm/audio/hdaudbus/pdo.cpp b/drivers/wdm/audio/hdaudbus/pdo.cpp
index f93c6fa168f..ed12934d494 100644
--- a/drivers/wdm/audio/hdaudbus/pdo.cpp
+++ b/drivers/wdm/audio/hdaudbus/pdo.cpp
@@ -68,6 +68,7 @@ HDA_PDOQueryId(
     PHDA_PDO_DEVICE_EXTENSION DeviceExtension;
     ULONG Length;
     LPWSTR Device;
+    NTSTATUS Status;

/* get device extension */
     DeviceExtension = (PHDA_PDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
@@ -78,18 +79,23 @@ HDA_PDOQueryId(

if (IoStack->Parameters.QueryId.IdType == BusQueryInstanceID)
     {
-        UNIMPLEMENTED;
-
-        // FIXME
-        swprintf(DeviceName, L"%08x", 1);
-        Length = wcslen(DeviceName) + 20;
+        Status = RtlStringCbPrintfW(DeviceName,
+                                    sizeof(DeviceName),
+                                    L"%02x%02x",
+                                    DeviceExtension->Codec->Addr,
+                                    DeviceExtension->AudioGroup->NodeId);
+        NT_ASSERT(NT_SUCCESS(Status));
+        Length = wcslen(DeviceName) + 1;

/* allocate result buffer*/
         Device = (LPWSTR)AllocateItem(PagedPool, Length * sizeof(WCHAR));
         if (!Device)
             return STATUS_INSUFFICIENT_RESOURCES;

-        swprintf(Device, L"%08x", 1);
+        Status = RtlStringCbCopyW(Device,
+                                  Length * sizeof(WCHAR),
+                                  DeviceName);
+        NT_ASSERT(NT_SUCCESS(Status));

DPRINT1("ID: %S\n", Device);
         /* store result */