Add I2S Bus driver (required for reading ACPI properties)

build/RockchipDrivers.sln

@@ -13,6 +13,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pl330dma", "..\drivers\dma\
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "es8323", "..\drivers\audio\codecs\es8323\es8323.vcxproj", "{15D34676-980D-4406-8C05-AB95AA5B43CA}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "rk3xi2sbus", "..\drivers\audio\rk3xi2sbus\rk3xi2sbus.vcxproj", "{BA95E25D-392E-4BC9-B481-E4D9FB9AFFB4}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|ARM64 = Debug|ARM64
@@ -49,6 +51,10 @@ Global
 		{15D34676-980D-4406-8C05-AB95AA5B43CA}.Release|ARM64.ActiveCfg = Release|ARM64
 		{15D34676-980D-4406-8C05-AB95AA5B43CA}.Release|ARM64.Build.0 = Release|ARM64
 		{15D34676-980D-4406-8C05-AB95AA5B43CA}.Release|ARM64.Deploy.0 = Release|ARM64
+		{BA95E25D-392E-4BC9-B481-E4D9FB9AFFB4}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{BA95E25D-392E-4BC9-B481-E4D9FB9AFFB4}.Release|ARM64.ActiveCfg = Release|ARM64
+		{BA95E25D-392E-4BC9-B481-E4D9FB9AFFB4}.Release|ARM64.Build.0 = Release|ARM64
+		{BA95E25D-392E-4BC9-B481-E4D9FB9AFFB4}.Release|ARM64.Deploy.0 = Release|ARM64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

drivers/audio/rk3xi2sbus/LICENSE.txt

@@ -0,0 +1,13 @@
+Copyright 2023 CoolStar
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

drivers/audio/rk3xi2sbus/README.md

@@ -0,0 +1,4 @@
+Rockchip Bus Driver for Rockchip 3xxx I2S
+
+* Exposes I2S resources
+* Support accessing topology

drivers/audio/rk3xi2sbus/adsp.cpp

@@ -0,0 +1,105 @@
+#include "driver.h"
+#define ADSP_DECL 1
+#include "adsp.h"
+
+NTSTATUS ADSPGetResources(_In_ PVOID _context, _Out_ _PCI_BAR* acpBar, PTPLG_INFO tplgInfo) {
+	if (!_context)
+		return STATUS_NO_SUCH_DEVICE;
+
+	PPDO_DEVICE_DATA devData = (PPDO_DEVICE_DATA)_context;
+	if (!devData->FdoContext) {
+		return STATUS_NO_SUCH_DEVICE;
+	}
+
+	if (acpBar) {
+		*acpBar = devData->FdoContext->m_MMIO;
+	}
+
+	if (tplgInfo) {
+		if (devData->FdoContext->rkTplg) {
+			tplgInfo->rkTplg = devData->FdoContext->rkTplg;
+			tplgInfo->rkTplgSz = devData->FdoContext->rkTplgSz;
+		}
+	}
+
+	return STATUS_SUCCESS;
+}
+
+NTSTATUS ADSPSetPowerState(_In_ PVOID _context, _In_ DEVICE_POWER_STATE powerState) {
+	if (!_context)
+		return STATUS_NO_SUCH_DEVICE;
+
+	PPDO_DEVICE_DATA devData = (PPDO_DEVICE_DATA)_context;
+	if (!devData->FdoContext) {
+		return STATUS_NO_SUCH_DEVICE;
+	}
+
+	NTSTATUS status = STATUS_SUCCESS;
+	if (powerState == PowerDeviceD3) {
+		WdfDeviceResumeIdle(devData->FdoContext->WdfDevice);
+	} else if (powerState == PowerDeviceD0) {
+		status = WdfDeviceStopIdle(devData->FdoContext->WdfDevice, TRUE);
+	}
+	return status;
+}
+
+NTSTATUS ADSPRegisterInterrupt(_In_ PVOID _context, _In_ PADSP_INTERRUPT_CALLBACK callback, _In_ PADSP_DPC_CALLBACK dpcCallback, _In_ PVOID callbackContext) {
+	if (!_context)
+		return STATUS_NO_SUCH_DEVICE;
+
+	PPDO_DEVICE_DATA devData = (PPDO_DEVICE_DATA)_context;
+	if (!devData->FdoContext) {
+		return STATUS_NO_SUCH_DEVICE;
+	}
+
+	devData->FdoContext->dspInterruptCallback = callback;
+	devData->FdoContext->dspDPCCallback = dpcCallback;
+	devData->FdoContext->dspInterruptContext = callbackContext;
+
+	return STATUS_SUCCESS;
+}
+
+NTSTATUS ADSPUnregisterInterrupt(_In_ PVOID _context) {
+	if (!_context)
+		return STATUS_NO_SUCH_DEVICE;
+
+	PPDO_DEVICE_DATA devData = (PPDO_DEVICE_DATA)_context;
+	if (!devData->FdoContext) {
+		return STATUS_NO_SUCH_DEVICE;
+	}
+
+	devData->FdoContext->dspInterruptCallback = NULL;
+	devData->FdoContext->dspInterruptContext = NULL;
+	return STATUS_SUCCESS;
+}
+
+NTSTATUS ADSPQueueDpcForInterrupt(_In_ PVOID _context) {
+	if (!_context)
+		return STATUS_NO_SUCH_DEVICE;
+
+	PPDO_DEVICE_DATA devData = (PPDO_DEVICE_DATA)_context;
+	if (!devData->FdoContext) {
+		return STATUS_NO_SUCH_DEVICE;
+	}
+
+	BOOL ret = WdfInterruptQueueDpcForIsr(devData->FdoContext->Interrupt);
+	return ret ? STATUS_SUCCESS : STATUS_UNSUCCESSFUL;
+}
+
+RKDSP_BUS_INTERFACE RKDSP_BusInterface(PVOID Context) {
+	RKDSP_BUS_INTERFACE busInterface;
+	RtlZeroMemory(&busInterface, sizeof(RKDSP_BUS_INTERFACE));
+
+	busInterface.Size = sizeof(RKDSP_BUS_INTERFACE);
+	busInterface.Version = 1;
+	busInterface.Context = Context;
+	busInterface.InterfaceReference = WdfDeviceInterfaceReferenceNoOp;
+	busInterface.InterfaceDereference = WdfDeviceInterfaceDereferenceNoOp;
+	busInterface.GetResources = ADSPGetResources;
+	busInterface.SetDSPPowerState = ADSPSetPowerState;
+	busInterface.RegisterInterrupt = ADSPRegisterInterrupt;
+	busInterface.UnregisterInterrupt = ADSPUnregisterInterrupt;
+	busInterface.QueueDPCForInterrupt = ADSPQueueDpcForInterrupt;
+
+	return busInterface;
+}

drivers/audio/rk3xi2sbus/adsp.h

@@ -0,0 +1,47 @@
+#ifndef __ADSP_INTERFACE
+#define __ADSP_INTERFACE
+//
+// The GUID_RKDSP_BUS_INTERFACE interface GUID
+//
+// {863DD2AC-5B54-4C57-8487-782F9ADFE8D7}
+DEFINE_GUID(GUID_RKDSP_BUS_INTERFACE,
+    0x863dd2ac, 0x5b54, 0x4c57, 0x84, 0x87, 0x78, 0x2f, 0x9a, 0xdf, 0xe8, 0xd7);
+
+typedef struct _TPLG_INFO {
+    PVOID rkTplg;
+    UINT64 rkTplgSz;
+} TPLG_INFO, * PTPLG_INFO;
+
+typedef _Must_inspect_result_ NTSTATUS(*PGET_ADSP_RESOURCES) (_In_ PVOID _context, _Out_ _PCI_BAR* acpBar, PTPLG_INFO tplgInfo);
+typedef _Must_inspect_result_ NTSTATUS(*PDSP_SET_POWER_STATE) (_In_ PVOID _context, _In_ DEVICE_POWER_STATE newPowerState);
+typedef _Must_inspect_result_ BOOL(*PADSP_INTERRUPT_CALLBACK)(PVOID context);
+typedef _Must_inspect_result_ VOID(*PADSP_DPC_CALLBACK)(PVOID context);
+typedef _Must_inspect_result_ NTSTATUS (*PADSP_QUEUE_DPC)(PVOID context);
+typedef _Must_inspect_result_ NTSTATUS(*PREGISTER_ADSP_INTERRUPT) (_In_ PVOID _context, _In_ PADSP_INTERRUPT_CALLBACK callback, _In_ PADSP_DPC_CALLBACK dpcCallback, _In_ PVOID callbackContext);
+typedef _Must_inspect_result_ NTSTATUS(*PUNREGISTER_ADSP_INTERRUPT) (_In_ PVOID _context);
+
+typedef struct _RKDSP_BUS_INTERFACE
+{
+    //
+    // First we define the standard INTERFACE structure ...
+    //
+    USHORT                    Size;
+    USHORT                    Version;
+    PVOID                     Context;
+    PINTERFACE_REFERENCE      InterfaceReference;
+    PINTERFACE_DEREFERENCE    InterfaceDereference;
+
+    //
+    // Then we expand the structure with the ADSP_BUS_INTERFACE stuff.
+
+    PGET_ADSP_RESOURCES           GetResources;
+    PDSP_SET_POWER_STATE          SetDSPPowerState;
+    PREGISTER_ADSP_INTERRUPT      RegisterInterrupt;
+    PUNREGISTER_ADSP_INTERRUPT    UnregisterInterrupt;
+    PADSP_QUEUE_DPC               QueueDPCForInterrupt;
+} RKDSP_BUS_INTERFACE, * PRKDSP_BUS_INTERFACE;
+
+#ifndef ADSP_DECL
+RKDSP_BUS_INTERFACE RKDSP_BusInterface(PVOID Context);
+#endif
+#endif