diff --git a/dlls/winealsa.drv/mmdevdrv.c b/dlls/winealsa.drv/mmdevdrv.c index 5ad72f9d429..827cdd8c926 100644 --- a/dlls/winealsa.drv/mmdevdrv.c +++ b/dlls/winealsa.drv/mmdevdrv.c @@ -3823,3 +3823,111 @@ HRESULT WINAPI AUDDRV_GetAudioSessionManager(IMMDevice *device, return S_OK; } + +enum AudioDeviceConnectionType { + AudioDeviceConnectionType_Unknown = 0, + AudioDeviceConnectionType_PCI, + AudioDeviceConnectionType_USB +}; + +HRESULT WINAPI AUDDRV_GetPropValue(GUID *guid, const PROPERTYKEY *prop, PROPVARIANT *out) +{ + static const PROPERTYKEY devicepath_key = { /* undocumented? - {b3f8fa53-0004-438e-9003-51a46e139bfc},2 */ + {0xb3f8fa53, 0x0004, 0x438e, {0x90, 0x03, 0x51, 0xa4, 0x6e, 0x13, 0x9b, 0xfc}}, 2 + }; + + TRACE("%s, (%s,%u), %p\n", wine_dbgstr_guid(guid), wine_dbgstr_guid(&prop->fmtid), prop->pid, out); + + if(IsEqualPropertyKey(*prop, devicepath_key)) + { + char name[256], uevent[MAX_PATH]; + EDataFlow flow; + FILE *fuevent; + int card, device; + + if(!get_alsa_name_by_guid(guid, name, sizeof(name), &flow)) + { + WARN("Unknown interface %s\n", debugstr_guid(guid)); + return E_NOINTERFACE; + } + + /* only implemented for identifiable devices, i.e. not "default" */ + if(!sscanf(name, "plughw:%u,%u", &card, &device)) + return E_NOTIMPL; + + sprintf(uevent, "/sys/class/sound/card%u/device/uevent", card); + fuevent = fopen(uevent, "r"); + + if(fuevent){ + enum AudioDeviceConnectionType connection = AudioDeviceConnectionType_Unknown; + USHORT vendor_id = 0, product_id = 0; + char line[256]; + + while (fgets(line, sizeof(line), fuevent)) { + char *val; + size_t val_len; + + if((val = strchr(line, '='))) { + val[0] = 0; + val++; + + val_len = strlen(val); + if(val_len > 0 && val[val_len - 1] == '\n') { val[val_len - 1] = 0; } + + if(!strcmp(line, "PCI_ID")){ + connection = AudioDeviceConnectionType_PCI; + if(sscanf(val, "%hX:%hX", &vendor_id, &product_id)<2){ + WARN("Unexpected input when reading PCI_ID in uevent file.\n"); + connection = AudioDeviceConnectionType_Unknown; + break; + } + }else if(!strcmp(line, "DEVTYPE") && !strcmp(val,"usb_interface")) + connection = AudioDeviceConnectionType_USB; + else if(!strcmp(line, "PRODUCT")) + if(sscanf(val, "%hx/%hx/", &vendor_id, &product_id)<2){ + WARN("Unexpected input when reading PRODUCT in uevent file.\n"); + connection = AudioDeviceConnectionType_Unknown; + break; + } + } + } + + fclose(fuevent); + + if(connection == AudioDeviceConnectionType_USB || connection == AudioDeviceConnectionType_PCI){ + static const WCHAR usbformatW[] = { '{','1','}','.','U','S','B','\\','V','I','D','_', + '%','0','4','X','&','P','I','D','_','%','0','4','X','\\', + '%','u','&','%','0','8','X',0 }; /* "{1}.USB\VID_%04X&PID_%04X\%u&%08X" */ + static const WCHAR pciformatW[] = { '{','1','}','.','H','D','A','U','D','I','O','\\','F','U','N','C','_','0','1','&', + 'V','E','N','_','%','0','4','X','&','D','E','V','_', + '%','0','4','X','\\','%','u','&','%','0','8','X',0 }; /* "{1}.HDAUDIO\FUNC_01&VEN_%04X&DEV_%04X\%u&%08X" */ + UINT serial_number; + + /* As hardly any audio devices have serial numbers, Windows instead + appears to use a persistent random number. We emulate this here + by instead using the last 8 hex digits of the GUID. */ + serial_number = (guid->Data4[4] << 24) | (guid->Data4[5] << 16) | (guid->Data4[6] << 8) | guid->Data4[7]; + + out->vt = VT_LPWSTR; + out->u.pwszVal = CoTaskMemAlloc(128 * sizeof(WCHAR)); + + if(!out->u.pwszVal) + return E_OUTOFMEMORY; + + if(connection == AudioDeviceConnectionType_USB) + sprintfW( out->u.pwszVal, usbformatW, vendor_id, product_id, device, serial_number); + else if(connection == AudioDeviceConnectionType_PCI) + sprintfW( out->u.pwszVal, pciformatW, vendor_id, product_id, device, serial_number); + + return S_OK; + } + }else{ + WARN("Could not open %s for reading\n", uevent); + return E_NOTIMPL; + } + } + + TRACE("Unimplemented property %s,%u\n", wine_dbgstr_guid(&prop->fmtid), prop->pid); + + return E_NOTIMPL; +} diff --git a/dlls/winealsa.drv/winealsa.drv.spec b/dlls/winealsa.drv/winealsa.drv.spec index 04fa05a9c12..bd83ea2e765 100644 --- a/dlls/winealsa.drv/winealsa.drv.spec +++ b/dlls/winealsa.drv/winealsa.drv.spec @@ -8,3 +8,4 @@ @ stdcall -private GetEndpointIDs(long ptr ptr ptr ptr) AUDDRV_GetEndpointIDs @ stdcall -private GetAudioEndpoint(ptr ptr ptr) AUDDRV_GetAudioEndpoint @ stdcall -private GetAudioSessionManager(ptr ptr) AUDDRV_GetAudioSessionManager +@ stdcall -private GetPropValue(ptr ptr ptr) AUDDRV_GetPropValue