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This commit is contained in:
EnderIce2
2024-01-19 06:44:00 +02:00
parent 2ee57b9756
commit da4a6317ea
83 changed files with 9425 additions and 598 deletions
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7
audio/Makefile Normal file
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build:
make -C ac97 build
make -C hda build
clean:
make -C ac97 clean
make -C hda clean

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# Config file
include ../../../Makefile.conf
FILENAME = ac97.drv
CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
CPP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)g++
LD = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ld
AS = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)as
OBJDUMP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)objdump
S_SOURCES = $(shell find ./ -type f -name '*.S')
C_SOURCES = $(shell find ./ -type f -name '*.c')
CPP_SOURCES = $(shell find ./ -type f -name '*.cpp')
HEADERS = $(sort $(dir $(wildcard ../../include/*)))
OBJ = $(C_SOURCES:.c=.o) $(CPP_SOURCES:.cpp=.o) $(ASM_SOURCES:.asm=.o) $(S_SOURCES:.S=.o) $(PSF_SOURCES:.psf=.o) $(BMP_SOURCES:.bmp=.o)
STACK_USAGE_OBJ = $(C_SOURCES:.c=.su) $(CPP_SOURCES:.cpp=.su)
INCLUDE_DIR = ../../include
LIBS := ../../out/dcrt0.o -L../../out -ldriver
LDFLAGS := \
-fPIC -fPIE -pie \
-Wl,--no-dynamic-linker,-ztext,--no-warn-rwx-segment \
-nostdlib -nodefaultlibs -nolibc \
-zmax-page-size=0x1000 \
-Wl,-Map file.map -shared -fvisibility=hidden
WARNCFLAG = -Wall -Wextra
CFLAGS := -I$(INCLUDE_DIR) -fvisibility=hidden
ifeq ($(OSARCH), amd64)
CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
-mno-red-zone -mno-sse -mno-sse2 \
-march=x86-64 -pipe -ffunction-sections \
-msoft-float -fno-builtin
else ifeq ($(OSARCH), i386)
CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
-mno-red-zone -mno-sse -mno-sse2 -ffunction-sections \
-march=i386 -pipe -msoft-float -fno-builtin
else ifeq ($(OSARCH), aarch64)
CFLAGS += -pipe -fno-builtin -fPIC
endif
ifeq ($(DEBUG), 1)
CFLAGS += -DDEBUG -ggdb3 -O0 -fdiagnostics-color=always -fstack-usage
ifeq ($(OSARCH), amd64)
CFLAGS += -fverbose-asm
endif
ifneq ($(OSARCH), aarch64)
CFLAGS += -fstack-check
endif
LDFLAGS += -ggdb3 -O0
endif
build: $(FILENAME)
mv $(FILENAME) ../../out/$(FILENAME)
$(FILENAME): $(OBJ)
$(info Linking $@)
$(CC) $(LDFLAGS) $(OBJ) $(LIBS) -o $@
%.o: %.c $(HEADERS)
$(info Compiling $<)
$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
%.o: %.cpp $(HEADERS)
$(info Compiling $<)
$(CPP) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fno-exceptions -fno-rtti -c $< -o $@
%.o: %.S
$(info Compiling $<)
$(AS) -o $@ $<
clean:
rm -f file.map $(OBJ) $(STACK_USAGE_OBJ)

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audio/ac97/ac97.cpp Normal file
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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <audio.h>
#include <regs.h>
#include <base.h>
#include <pci.h>
#include <io.h>
#define DescriptorListLength 0x20
enum AudioVolumeValues
{
AV_Maximum = 0x0,
AV_Minimum = 0x3F,
};
enum AudioEncodingValues
{
AE_PCMs8,
AE_PCMu8,
AE_PCMs16le,
AE_PCMs20le,
AE_PCMs24le,
AE_PCMs32le,
AE_PCMu16le,
AE_PCMu20le,
AE_PCMu24le,
AE_PCMu32le,
AE_PCMs16be,
AE_PCMs20be,
AE_PCMs24be,
AE_PCMs32be,
AE_PCMu16be,
AE_PCMu20be,
AE_PCMu24be,
AE_PCMu32be,
};
enum NativeAudioMixerRegisters
{
/**
* @brief Reset Register
* @note Length: word
*/
NAM_Reset = 0x00,
/**
* @brief Master Volume Register
* @note Length: word
*/
NAM_MasterVolume = 0x02,
/**
* @brief Microphone Volume Register
* @note Length: word
*/
NAM_MicrophoneVolume = 0x0E,
/**
* @brief PCM Out Volume Register
* @note Length: word
*/
NAM_PCMOutVolume = 0x18,
/**
* @brief Select Record Input Register
* @note Length: word
*/
NAM_SelectRecordInput = 0x1A,
/**
* @brief Record Gain Register
* @note Length: word
*/
NAM_RecordGain = 0x1C,
/**
* @brief Record Gain Microphone Register
* @note Length: word
*/
NAM_RecordGainMicrophone = 0x1E,
};
enum NativeAudioBusMasterRegisters
{
/**
* @brief Register box for PCM IN
* @note Length: below
*/
NABM_PCMInBox = 0x00,
/**
* @brief Register box for PCM OUT
* @note Length: below
*/
NABM_PCMOutBox = 0x10,
/**
* @brief Register box for Microphone
* @note Length: below
*/
NABM_MicrophoneBox = 0x20,
/**
* @brief Global Control Register
* @note Length: dword
*/
NABM_GlobalControl = 0x2C, /* 0x30 */
/**
* @brief Global Status Register
* @note Length: dword
*/
NABM_GlobalStatus = 0x30, /* 0x34 */
};
enum NativeAudioBusMasterBoxOffsets
{
/**
* @brief Physical Address of Buffer Descriptor List
* @note Length: dword
*/
NABMBOFF_BufferDescriptorList = 0x00,
/**
* @brief Number of Actual Processed Buffer Descriptor Entry
* @note Length: byte
*/
NABMBOFF_BufferDescriptorEntry = 0x04,
/**
* @brief Number of all Descriptor Entries
* @note Length: byte
*/
NABMBOFF_DescriptorEntries = 0x05,
/**
* @brief Status of transferring Data
* @note Length: word
*/
NABMBOFF_Status = 0x06,
/**
* @brief Number of transferred Samples in Actual Processed Entry
* @note Length: word
*/
NABMBOFF_TransferredSamples = 0x08,
/**
* @brief Number of next processed Buffer Entry
* @note Length: byte
*/
NABMBOFF_NextProcessedBufferEntry = 0x0A,
/**
* @brief Transfer Control
* @note Length: byte
*/
NABMBOFF_TransferControl = 0x0B,
};
enum OutputPulseCodeModulationRegisters
{
/**
* @brief Physical Address of Buffer Descriptor List
* @note Length: dword
*/
PCMOUT_BufferDescriptorList = (int)NABM_PCMOutBox + (int)NABMBOFF_BufferDescriptorList,
/**
* @brief Number of Actual Processed Buffer Descriptor Entry
* @note Length: byte
*/
PCMOUT_BufferDescriptorEntry = (int)NABM_PCMOutBox + (int)NABMBOFF_BufferDescriptorEntry,
/**
* @brief Number of all Descriptor Entries
* @note Length: byte
*/
PCMOUT_DescriptorEntries = (int)NABM_PCMOutBox + (int)NABMBOFF_DescriptorEntries,
/**
* @brief Status of transferring Data
* @note Length: word
*/
PCMOUT_Status = (int)NABM_PCMOutBox + (int)NABMBOFF_Status,
/**
* @brief Number of transferred Samples in Actual Processed Entry
* @note Length: word
*/
PCMOUT_TransferredSamples = (int)NABM_PCMOutBox + (int)NABMBOFF_TransferredSamples,
/**
* @brief Number of next processed Buffer Entry
* @note Length: byte
*/
PCMOUT_NextProcessedBufferEntry = (int)NABM_PCMOutBox + (int)NABMBOFF_NextProcessedBufferEntry,
/**
* @brief Transfer Control
* @note Length: byte
*/
PCMOUT_TransferControl = (int)NABM_PCMOutBox + (int)NABMBOFF_TransferControl,
};
enum TransferControlRegisters
{
/**
* @brief DMA controller control
*
* 0 = Pause transfer
* 1 = Transfer sound data
*/
TC_DMAControllerControl = 0x01,
/**
* @brief Reset
*
* 0 = Remove reset condition
* 1 = Reset this NABM register box, this bit is cleared by card when is reset complete
*/
TC_TransferReset = 0x02,
/**
* @brief Last Buffer Entry Interrupt enable
*
* 0 = Disable interrupt
* 1 = Enable interrupt
*/
TC_LastBufferEntryInterruptEnable = 0x04,
/**
* @brief IOC Interrupt enable
*
* 0 = Disable interrupt
* 1 = Enable interrupt
*/
TC_IOCInterruptEnable = 0x08,
/**
* @brief Fifo ERROR Interrupt enable
*
* 0 = Disable interrupt
* 1 = Enable interrupt
*/
TC_FifoERRORInterruptEnable = 0x10,
};
enum GlobalControlRegisters
{
/**
* @brief Global Interrupt Enable
*
* 0 = Disable Interrupts
* 1 = Enable Interrupts
*/
GC_GlobalInterruptEnable = 0x01,
/**
* @brief Cold reset
*
* 0 = Device is in reset and can not be used
* 1 = Resume to operational state
*/
GC_ColdReset = 0x02,
/**
* @brief Warm reset
*/
GC_WarmReset = 0x04,
/**
* @brief Shut down
*
* 0 = Device is powered
* 1 = Shut down
*/
GC_ShutDown = 0x08,
/**
* @brief Channels for PCM Output
*
* 00 = 2 channels
* 01 = 4 channels
* 10 = 6 channels
* 11 = Reserved
*/
GC_ChannelsForPCMOutput = 0x30,
/**
* @brief PCM Output mode
*
* 00 = 16 bit samples
* 01 = 20 bit samples
*/
GC_PCMOutputMode = 0xC0,
};
struct BufferDescriptorList
{
/**
* @brief Physical Address to sound data in memory
* @note Length: dword
*/
uint32_t Address;
/**
* @brief Number of samples in this buffer
* @note Length: word
*/
uint16_t SampleCount;
/**
* @brief Flags
* @note Length: word
*
* Bit 15 = Interrupt fired when data from this entry is transferred
* Bit 14 = Last entry of buffer, stop playing
* Other bits = Reserved
*/
uint16_t Flags;
} __attribute__((packed));
uint16_t MixerVolume(uint8_t Left, uint8_t Right, bool Mute)
{
return ((uint16_t)((Right & 0x3F) |
((Left & 0x3F) << 0x8) |
(Mute & 1 << 0xF)));
}
class AC97Device
{
private:
PCIHeader0 *Header;
BufferDescriptorList *DescriptorList = nullptr;
uint16_t MixerAddress;
uint16_t BusMasterAddress;
AudioEncodingValues Encoding = AE_PCMs16le;
char Channels = 2;
uint8_t Volume = AV_Maximum;
bool Mute = false;
int SampleRate = 48000;
char SampleSize = 2;
public:
size_t write(uint8_t *Buffer, size_t Size)
{
if (Buffer == nullptr)
{
Log("Invalid buffer.");
return -EINVAL;
}
if ((Size == 0) || (Size % (SampleSize * Channels)))
{
Log("Invalid buffer length.");
return -EINVAL;
}
int TotalBDLToFill = (int)((Size + PAGE_SIZE - 1) >> 12);
while (Size > 0)
{
bool ActiveDMA = !(inw(BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
if (ActiveDMA)
{
int RemainingBDL = 0;
do
{
int CurrentBDL = inb(BusMasterAddress + PCMOUT_BufferDescriptorEntry);
int LastBDL = inb(BusMasterAddress + PCMOUT_DescriptorEntries);
RemainingBDL = LastBDL - CurrentBDL;
if (RemainingBDL < 0)
RemainingBDL += DescriptorListLength;
RemainingBDL += 1;
if (RemainingBDL >= DescriptorListLength - 1)
{
long SampleCount = DescriptorList[(CurrentBDL + 1) % DescriptorListLength].SampleCount / Channels;
if (SampleCount > 0)
Sleep(SampleCount * 1000 / SampleRate);
}
} while (RemainingBDL >= DescriptorListLength - 1 &&
!(inw(BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl));
}
uint8_t CurrentBDL = inb(BusMasterAddress + PCMOUT_BufferDescriptorEntry);
uint8_t LastBDL = inb(BusMasterAddress + PCMOUT_DescriptorEntries);
uint8_t NextBDL = LastBDL % DescriptorListLength;
ActiveDMA = !(inw(BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
if (ActiveDMA)
{
NextBDL = (uint8_t)((LastBDL + 1) % DescriptorListLength);
if (NextBDL == CurrentBDL)
continue;
}
do
{
size_t Wrote = (PAGE_SIZE > Size) ? size_t(Size)
: size_t(PAGE_SIZE);
if (Wrote == 0)
{
Log("Wrote 0 bytes.");
break;
}
memcpy((void *)((uint64_t)DescriptorList[NextBDL].Address), Buffer, Wrote);
DescriptorList[NextBDL].Flags = 0;
Buffer += Wrote;
Size -= (unsigned int)Wrote;
DescriptorList[NextBDL].SampleCount = uint16_t(Wrote / SampleSize);
TotalBDLToFill--;
NextBDL = (uint8_t)((NextBDL + 1) % DescriptorListLength);
} while (TotalBDLToFill-- && NextBDL != CurrentBDL);
outb(BusMasterAddress + PCMOUT_DescriptorEntries, NextBDL - 1);
ActiveDMA = !(inw(BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
if (!ActiveDMA)
{
// Start DMA
outb(BusMasterAddress + PCMOUT_TransferControl,
inb(BusMasterAddress + PCMOUT_TransferControl) | TC_DMAControllerControl);
}
}
return Size;
}
int ioctl(AudioIoctl, void *)
{
// if (Data->AudioCallback.Adjust._Volume)
// {
// Volume = (uint8_t)(0x3F - (0x3F * Data->AudioCallback.Adjust.Volume / 100));
// outw(BAR.MixerAddress + NAM_MasterVolume, MixerVolume(Volume, Volume, Mute));
// // outw(BAR.MixerAddress + NAM_PCMOutVolume, MixerVolume(Volume, Volume, Mute));
// }
// else if (Data->AudioCallback.Adjust._Encoding)
// {
// fixme("Encoding changing not supported yet.");
// }
// else if (Data->AudioCallback.Adjust._SampleRate)
// {
// switch (Data->AudioCallback.Adjust.SampleRate)
// {
// case 0:
// {
// SampleRate = 8000;
// break;
// }
// case 1:
// {
// SampleRate = 11025;
// break;
// }
// case 2:
// {
// SampleRate = 16000;
// break;
// }
// case 3:
// {
// SampleRate = 22050;
// break;
// }
// case 4:
// {
// SampleRate = 32000;
// break;
// }
// case 5:
// {
// SampleRate = 44100;
// break;
// }
// case 6:
// {
// SampleRate = 48000;
// break;
// }
// case 7:
// {
// SampleRate = 88200;
// break;
// }
// case 8:
// {
// SampleRate = 96000;
// break;
// }
// default:
// {
// SampleRate = 16000;
// error("Invalid sample rate. Defaulting to 16000.");
// break;
// }
// }
// }
// else if (Data->AudioCallback.Adjust._Channels)
// {
// switch (Data->AudioCallback.Adjust.Channels)
// {
// case 0:
// {
// Channels = 1; // Mono
// break;
// }
// case 1:
// {
// Channels = 2; // Stereo
// break;
// }
// default:
// {
// Channels = 2;
// error("Invalid channel count. Defaulting to 2.");
// break;
// }
// }
// }
return 0;
}
void OnInterruptReceived(TrapFrame *)
{
uint16_t Status = inw(MixerAddress + PCMOUT_Status);
if (Status & TC_IOCInterruptEnable)
{
DebugLog("IOC");
outw(MixerAddress + PCMOUT_Status, TC_IOCInterruptEnable);
uint16_t CurrentBDL = inb(BusMasterAddress + PCMOUT_BufferDescriptorEntry);
uint16_t LastBDL = (CurrentBDL + 2) & (DescriptorListLength - 1);
outb(BusMasterAddress + PCMOUT_DescriptorEntries, LastBDL);
Log("FIXME: CurrentBDL: %d, LastBDL: %d", CurrentBDL, LastBDL);
}
else if (Status & TC_LastBufferEntryInterruptEnable)
{
DebugLog("Last buffer entry");
// Stop DMA
uint8_t TransferControl = inb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl));
TransferControl &= ~TC_DMAControllerControl;
outb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl), TransferControl);
outw(MixerAddress + PCMOUT_Status, TC_LastBufferEntryInterruptEnable);
}
else if (Status & TC_FifoERRORInterruptEnable)
{
Log("FIFO error");
outw(MixerAddress + PCMOUT_Status, TC_FifoERRORInterruptEnable);
}
else
{
DebugLog("Unknown interrupt status %#x", Status);
outw(MixerAddress + PCMOUT_Status, 0xFFFF);
}
}
void Panic()
{
uint8_t TransferControl = inb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl));
TransferControl &= ~(TC_LastBufferEntryInterruptEnable |
TC_IOCInterruptEnable |
TC_FifoERRORInterruptEnable);
outb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl), TransferControl);
uint32_t GlobalControl = inl((uint16_t)(BusMasterAddress + NABM_GlobalControl));
GlobalControl &= ~GC_GlobalInterruptEnable;
GlobalControl |= GC_ShutDown;
outl((uint16_t)(BusMasterAddress + NABM_GlobalControl), GlobalControl);
}
AC97Device(PCIHeader0 *_Header)
: Header(_Header)
{
/* Native Audio Mixer Base Address */
uint32_t PCIBAR0 = Header->BAR0;
/* Native Audio Bus Master Base Address */
uint32_t PCIBAR1 = Header->BAR1;
// uint8_t Type = PCIBAR0 & 1;
MixerAddress = (uint16_t)(PCIBAR0 & (~3));
BusMasterAddress = PCIBAR1 & (~15);
uint16_t OutputPCMTransferControl = BusMasterAddress + PCMOUT_TransferControl;
/* DescriptorList address MUST be physical. */
DescriptorList = (BufferDescriptorList *)AllocateMemory(TO_PAGES(sizeof(BufferDescriptorList) * DescriptorListLength));
memset(DescriptorList, 0, sizeof(BufferDescriptorList) * DescriptorListLength);
uint16_t DLSampleCount = (uint16_t)(PAGE_SIZE / SampleSize);
for (int i = 0; i < DescriptorListLength; i++)
{
DescriptorList[i].Address = (uint32_t)(uintptr_t)AllocateMemory(TO_PAGES(sizeof(uint16_t *)));
DescriptorList[i].SampleCount = DLSampleCount;
DescriptorList[i].Flags = 0;
DebugLog("DescriptorList[%d] = { Address: %#lx, SampleCount: %d, Flags: %#lx }",
i,
DescriptorList[i].Address,
DescriptorList[i].SampleCount,
DescriptorList[i].Flags);
}
outw(MixerAddress + NAM_MasterVolume, MixerVolume(Volume, Volume, Mute));
outw(MixerAddress + NAM_PCMOutVolume, MixerVolume(Volume, Volume, Mute));
Volume = 0x3F - (0x3F * /* VOL 50% */ 50 / 100);
outw(MixerAddress + NAM_MasterVolume, MixerVolume(Volume, Volume, Mute));
outb(OutputPCMTransferControl, inb(OutputPCMTransferControl) | TC_TransferReset);
while (inb(OutputPCMTransferControl) & TC_TransferReset)
;
uint32_t GlobalControl = inl(BusMasterAddress + NABM_GlobalControl);
GlobalControl = (GlobalControl & ~((0x3U) << 0x16)); /* PCM 16-bit mode */
GlobalControl = (GlobalControl & ~((0x3U) << 20)); /* 2 channels */
GlobalControl |= GC_GlobalInterruptEnable;
GlobalControl &= ~GC_ShutDown;
outl(BusMasterAddress + PCMOUT_BufferDescriptorList,
(uint32_t)(uint64_t)DescriptorList);
outl(BusMasterAddress + NABM_GlobalControl, GlobalControl);
uint8_t TransferControl = inb(OutputPCMTransferControl);
TransferControl |= TC_IOCInterruptEnable |
TC_FifoERRORInterruptEnable;
outb(OutputPCMTransferControl, TransferControl);
// Stop DMA
outb(OutputPCMTransferControl, inb(OutputPCMTransferControl) & ~TC_DMAControllerControl);
}
~AC97Device()
{
outw(MixerAddress + NAM_MasterVolume, MixerVolume(AV_Maximum, AV_Maximum, true));
outw(MixerAddress + NAM_PCMOutVolume, MixerVolume(AV_Maximum, AV_Maximum, true));
// Stop DMA
outb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl),
inb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl)) & ~TC_DMAControllerControl);
// Disable interrupts
uint8_t TransferControl = inb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl));
TransferControl &= ~(TC_LastBufferEntryInterruptEnable |
TC_IOCInterruptEnable |
TC_FifoERRORInterruptEnable);
outb((uint16_t)(BusMasterAddress + PCMOUT_TransferControl), TransferControl);
// Disable global control
uint32_t GlobalControl = inl((uint16_t)(BusMasterAddress + NABM_GlobalControl));
GlobalControl &= ~GC_GlobalInterruptEnable;
GlobalControl |= GC_ShutDown;
outl((uint16_t)(BusMasterAddress + NABM_GlobalControl), GlobalControl);
}
};
AC97Device *Drivers[4] = {nullptr};
dev_t AudioID[4] = {0};
#define OIR(x) OIR_##x
#define CREATE_OIR(x) \
void OIR_##x(TrapFrame *f) { Drivers[x]->OnInterruptReceived(f); }
CREATE_OIR(0);
CREATE_OIR(1);
CREATE_OIR(2);
CREATE_OIR(3);
int drvOpen(dev_t, dev_t, int, mode_t) { return 0; }
int drvClose(dev_t, dev_t) { return 0; }
size_t drvRead(dev_t, dev_t, uint8_t *, size_t, off_t) { return 0; }
size_t drvWrite(dev_t, dev_t min, uint8_t *Buffer, size_t Size, off_t)
{
return Drivers[AudioID[min]]->write(Buffer, Size);
}
int drvIoctl(dev_t, dev_t min, unsigned long Request, void *Argp)
{
return Drivers[AudioID[min]]->ioctl((AudioIoctl)Request, Argp);
}
PCIArray *Devices;
EXTERNC int cxx_Panic()
{
PCIArray *ctx = Devices;
short Count = 0;
while (ctx != nullptr)
{
if (Drivers[Count] != nullptr)
Drivers[Count]->Panic();
Count++;
ctx = (PCIArray *)ctx->Next;
}
return 0;
}
EXTERNC int cxx_Probe()
{
uint16_t VendorIDs[] = {0x8086, PCI_END};
uint16_t DeviceIDs[] = {0x2415, PCI_END};
Devices = FindPCIDevices(VendorIDs, DeviceIDs);
if (Devices == nullptr)
{
Log("No AC'97 device found.");
return -ENODEV;
}
PCIArray *ctx = Devices;
bool Found = false;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count++ > sizeof(Drivers) / sizeof(AC97Device *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type != 1)
{
Log("Device %x:%x.%d BAR0 is not I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
Found = true;
ctx = (PCIArray *)ctx->Next;
}
if (!Found)
{
Log("No valid AC'97 device found.");
return -EINVAL;
}
return 0;
}
EXTERNC int cxx_Initialize()
{
PCIArray *ctx = Devices;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count > sizeof(Drivers) / sizeof(AC97Device *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type != 1)
{
Log("Device %x:%x.%d BAR0 is not I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
InitializePCI(ctx->Device);
Drivers[Count] = new AC97Device((PCIHeader0 *)ctx->Device->Header);
/* FIXME: bad code */
switch (Count)
{
case 0:
RegisterInterruptHandler(iLine(ctx->Device), (void *)OIR(0));
break;
case 1:
RegisterInterruptHandler(iLine(ctx->Device), (void *)OIR(1));
break;
case 2:
RegisterInterruptHandler(iLine(ctx->Device), (void *)OIR(2));
break;
case 3:
RegisterInterruptHandler(iLine(ctx->Device), (void *)OIR(3));
break;
default:
break;
}
dev_t ret = RegisterAudioDevice(ddt_Audio,
drvOpen, drvClose,
drvRead, drvWrite,
drvIoctl);
AudioID[Count] = ret;
Count++;
ctx = (PCIArray *)ctx->Next;
}
return 0;
}
EXTERNC int cxx_Finalize()
{
PCIArray *ctx = Devices;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count++ > sizeof(Drivers) / sizeof(AC97Device *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type != 1)
{
Log("Device %x:%x.%d BAR0 is not I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
delete Drivers[Count++];
ctx->Device->Header->Command |= PCI_COMMAND_INTX_DISABLE;
ctx = (PCIArray *)ctx->Next;
}
return 0;
}

25
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/*
This file is part of Fennix Drivers.
Fennix Drivers is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Drivers is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <types.h>
EXTERNC int cxx_Panic();
EXTERNC int cxx_Probe();
EXTERNC int cxx_Initialize();
EXTERNC int cxx_Finalize();

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/*
This file is part of Fennix Drivers.
Fennix Drivers is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Drivers is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
*/
#include <base.h>
#include "ac97.hpp"
int DriverEntry() { return cxx_Initialize(); }
int DriverFinal() { return cxx_Finalize(); }
int DriverPanic() { return cxx_Panic(); }
int DriverProbe() { return cxx_Probe(); }
DriverInfo("ac97",
"Audio Codec '97 Driver",
"EnderIce2",
"0.1",
"GPLv3");

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audio/hda/Makefile Normal file
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# Config file
include ../../../Makefile.conf
FILENAME = hda.drv
CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
CPP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)g++
LD = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ld
AS = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)as
OBJDUMP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)objdump
S_SOURCES = $(shell find ./ -type f -name '*.S')
C_SOURCES = $(shell find ./ -type f -name '*.c')
CPP_SOURCES = $(shell find ./ -type f -name '*.cpp')
HEADERS = $(sort $(dir $(wildcard ../../include/*)))
OBJ = $(C_SOURCES:.c=.o) $(CPP_SOURCES:.cpp=.o) $(ASM_SOURCES:.asm=.o) $(S_SOURCES:.S=.o) $(PSF_SOURCES:.psf=.o) $(BMP_SOURCES:.bmp=.o)
STACK_USAGE_OBJ = $(C_SOURCES:.c=.su) $(CPP_SOURCES:.cpp=.su)
INCLUDE_DIR = ../../include
LIBS := ../../out/dcrt0.o -L../../out -ldriver
LDFLAGS := \
-fPIC -fPIE -pie \
-Wl,--no-dynamic-linker,-ztext,--no-warn-rwx-segment \
-nostdlib -nodefaultlibs -nolibc \
-zmax-page-size=0x1000 \
-Wl,-Map file.map -shared -fvisibility=hidden
WARNCFLAG = -Wall -Wextra
CFLAGS := -I$(INCLUDE_DIR) -fvisibility=hidden
ifeq ($(OSARCH), amd64)
CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
-mno-red-zone -mno-sse -mno-sse2 \
-march=x86-64 -pipe -ffunction-sections \
-msoft-float -fno-builtin
else ifeq ($(OSARCH), i386)
CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
-mno-red-zone -mno-sse -mno-sse2 -ffunction-sections \
-march=i386 -pipe -msoft-float -fno-builtin
else ifeq ($(OSARCH), aarch64)
CFLAGS += -pipe -fno-builtin -fPIC
endif
ifeq ($(DEBUG), 1)
CFLAGS += -DDEBUG -ggdb3 -O0 -fdiagnostics-color=always -fstack-usage
ifeq ($(OSARCH), amd64)
CFLAGS += -fverbose-asm
endif
ifneq ($(OSARCH), aarch64)
CFLAGS += -fstack-check
endif
LDFLAGS += -ggdb3 -O0
endif
build: $(FILENAME)
mv $(FILENAME) ../../out/$(FILENAME)
$(FILENAME): $(OBJ)
$(info Linking $@)
$(CC) $(LDFLAGS) $(OBJ) $(LIBS) -o $@
%.o: %.c $(HEADERS)
$(info Compiling $<)
$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
%.o: %.cpp $(HEADERS)
$(info Compiling $<)
$(CPP) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fno-exceptions -fno-rtti -c $< -o $@
%.o: %.S
$(info Compiling $<)
$(AS) -o $@ $<
clean:
rm -f file.map $(OBJ) $(STACK_USAGE_OBJ)

239
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/*
This file is part of Fennix Kernel.
Fennix Kernel is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Kernel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <audio.h>
#include <regs.h>
#include <base.h>
#include <pci.h>
#include <io.h>
#include "hda.hpp"
class HDADevice
{
private:
PCIHeader0 *Header;
bool Initialized = false;
ControllerRegisters *CTL;
uint32_t *CORB;
uint64_t *RIRB;
public:
bool IsInitialized() { return Initialized; }
size_t write(uint8_t *, size_t Size)
{
return Size;
}
int ioctl(AudioIoctl, void *)
{
return 0;
}
void OnInterruptReceived(TrapFrame *)
{
}
void Panic()
{
}
HDADevice(PCIHeader0 *_Header)
: Header(_Header),
CORB((uint32_t *)(uintptr_t)AllocateMemory(1)),
RIRB((uint64_t *)AllocateMemory(1))
{
CTL = (ControllerRegisters *)(uintptr_t)Header->BAR0;
Log("Unimplemented HDA driver");
return;
Initialized = true;
}
~HDADevice()
{
if (!Initialized)
return;
}
};
HDADevice *Drivers[4] = {nullptr};
dev_t AudioID[4] = {0};
#define OIR(x) OIR_##x
#define CREATE_OIR(x) \
void OIR_##x(TrapFrame *f) { Drivers[x]->OnInterruptReceived(f); }
CREATE_OIR(0);
CREATE_OIR(1);
CREATE_OIR(2);
CREATE_OIR(3);
int drvOpen(dev_t, dev_t, int, mode_t) { return 0; }
int drvClose(dev_t, dev_t) { return 0; }
size_t drvRead(dev_t, dev_t, uint8_t *, size_t, off_t) { return 0; }
size_t drvWrite(dev_t, dev_t min, uint8_t *Buffer, size_t Size, off_t)
{
return Drivers[AudioID[min]]->write(Buffer, Size);
}
int drvIoctl(dev_t, dev_t min, unsigned long Request, void *Argp)
{
return Drivers[AudioID[min]]->ioctl((AudioIoctl)Request, Argp);
}
PCIArray *Devices;
EXTERNC int cxx_Panic()
{
PCIArray *ctx = Devices;
short Count = 0;
while (ctx != nullptr)
{
if (Drivers[Count] != nullptr)
Drivers[Count]->Panic();
Count++;
ctx = (PCIArray *)ctx->Next;
}
return 0;
}
EXTERNC int cxx_Probe()
{
uint16_t VendorIDs[] = {0x8086, /* Intel */
0x15AD, /* VMware */
PCI_END};
uint16_t DeviceIDs[] = {0x9D71 /* Sunrise Point-LP HD Audio */,
0x2668 /* ICH6 */,
0x293E /* ICH9 */,
PCI_END};
Devices = FindPCIDevices(VendorIDs, DeviceIDs);
if (Devices == nullptr)
{
Log("No HDA device found.");
return -ENODEV;
}
PCIArray *ctx = Devices;
bool Found = false;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count++ > sizeof(Drivers) / sizeof(HDADevice *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type == 1)
{
Log("Device %x:%x.%d BAR0 is I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
Found = true;
ctx = (PCIArray *)ctx->Next;
}
if (!Found)
{
Log("No valid HDA device found.");
return -EINVAL;
}
return 0;
}
EXTERNC int cxx_Initialize()
{
PCIArray *ctx = Devices;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count > sizeof(Drivers) / sizeof(HDADevice *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type == 1)
{
Log("Device %x:%x.%d BAR0 is I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
InitializePCI(ctx->Device);
Drivers[Count] = new HDADevice((PCIHeader0 *)ctx->Device->Header);
if (Drivers[Count]->IsInitialized())
{
dev_t ret = RegisterAudioDevice(ddt_Audio,
drvOpen, drvClose,
drvRead, drvWrite,
drvIoctl);
AudioID[Count] = ret;
Count++;
}
ctx = (PCIArray *)ctx->Next;
}
if (Count == 0)
{
Log("No valid HDA device found.");
return -EINVAL;
}
return 0;
}
EXTERNC int cxx_Finalize()
{
PCIArray *ctx = Devices;
size_t Count = 0;
while (ctx != nullptr)
{
if (Count++ > sizeof(Drivers) / sizeof(HDADevice *))
break;
PCIHeader0 *PCIBaseAddress = (PCIHeader0 *)ctx->Device->Header;
uint32_t PCIBAR0 = PCIBaseAddress->BAR0;
uint8_t Type = PCIBAR0 & 1;
if (Type == 1)
{
Log("Device %x:%x.%d BAR0 is I/O.",
PCIBaseAddress->Header.VendorID,
PCIBaseAddress->Header.DeviceID,
PCIBaseAddress->Header.ProgIF);
continue;
}
delete Drivers[Count++];
ctx = (PCIArray *)ctx->Next;
}
return 0;
}

635
audio/hda/hda.hpp Normal file
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/*
This file is part of Fennix Drivers.
Fennix Drivers is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Drivers is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <types.h>
#ifdef __cplusplus
struct StreamDescriptor
{
/** Control */
uint32_t CTL : 24;
/** Status */
uint8_t STS;
/** Link Position in Current Buffer */
uint32_t LPIB;
/** Cyclic Buffer Length */
uint32_t CBL;
/** Last Valid Index */
uint16_t LVI;
/** Reserved */
uint8_t Rsvd0[2];
/** FIFO Size */
uint16_t FIFOD;
/** Format */
uint16_t FMT;
/** Reserved */
uint8_t Rsvd1[4];
/** Buffer Descriptor List Pointer - Lower */
uint32_t BDPL;
/** Buffer Descriptor List Pointer - Upper */
uint32_t BDPU;
} __attribute__((packed));
struct ControllerRegisters
{
uint16_t GCAP;
uint8_t VMIN;
uint8_t VMJ;
uint16_t OUTPAY;
uint16_t INPAY;
uint32_t GCTL;
uint16_t WAKEEN;
uint16_t WAKESTS;
uint16_t GSTS;
uint8_t Rsvd0[6];
uint16_t OUTSTRMPAY;
uint16_t INSTRMPAY;
uint8_t Rsvd1[4];
uint32_t INTCTL;
uint32_t INTSTS;
uint8_t Rsvd2[8];
uint32_t WALCLK;
uint8_t Rsvd3[4];
uint32_t SSYNC;
uint8_t Rsvd4[4];
uint32_t CORBLBASE;
uint32_t CORBUBASE;
uint16_t CORBWP;
uint16_t CORBRP;
uint8_t CORBCTL;
uint8_t CORBSTS;
uint8_t CORBSIZE;
uint8_t Rsvd5;
uint32_t RIRBLBASE;
uint32_t RIRBUBASE;
uint16_t RIRBWP;
uint16_t RINTCNT;
uint8_t RIRBCTL;
uint8_t RIRBSTS;
uint8_t RIRBSIZE;
uint8_t Rsvd6;
uint32_t ICOI;
uint32_t ICII;
uint16_t ICIS;
uint8_t Rsvd7[6];
uint32_t DPIBLBASE;
uint32_t DPIBUBASE;
uint8_t Rsvd8[8];
StreamDescriptor SD[];
} __attribute__((packed));
/* Not working as expected */
struct __ControllerRegisters
{
/** Global Capabilities */
union
{
struct
{
/** 64 Bit Address Supported
*
* 0 = 32-bit addressing
* 1 = 64-bit addressing
*/
uint16_t _64OK : 1;
/** Number of Serial Data Out Signals
*
* 00 = 1 SDO
* 01 = 2 SDOs
* 10 = 4 SDOs
* 11 = Reserved
*/
uint16_t NSDO : 2;
/** Number of Bidirectional Streams Supported
*
* 00000b = No bidirectional streams supported
* 00001b = 1 bidirectional stream supported
* ...
* 11110b = 30 bidirectional streams supported
*/
uint16_t BSS : 5;
/** Number of Input Streams Supported
*
* 0000b = No input streams supported
* 0001b = 1 input stream supported
* ...
* 1111b = 15 input streams supported
*/
uint16_t ISS : 4;
/** Number of Output Streams Supported
*
* 0000b = No output streams supported
* 0001b = 1 output stream supported
* ...
* 1111b = 15 output streams supported
*/
uint16_t OSS : 4;
} __attribute__((packed));
uint16_t Raw;
} GCAP;
/** Minor Version */
uint8_t VMIN;
/** Major Version */
uint8_t VMJ;
/** Output Payload Capability
*
* 00h = 0 Words
* 01h = 1 Word payload
* ...
* FFh = 255h Word payload
*/
uint16_t OUTPAY;
/** Input Payload Capability
*
* 00h = 0 Words
* 01h = 1 Word payload
* ...
* FFh = 255h Word payload
*/
uint16_t INPAY;
/** Global Control */
union
{
struct
{
/** Controller Reset
*
* 0 = Reset
* 1 = Normal Operation
*/
uint32_t CRST : 1;
/** Flush Control
*
* 0 = Idle
* 1 = Flush
*/
uint32_t FCNTRL : 1;
/** Reserved */
uint32_t RsvdP0 : 6;
/** Accept Unsolicited Response Enable
*
* 0 = Disabled
* 1 = Enabled
*/
uint32_t UNSOL : 1;
/** Reserved */
uint32_t RsvdP1 : 23;
} __attribute__((packed));
uint32_t Raw;
} GCTL;
/** Wake Enable */
union
{
struct
{
/** SDIN Wake Enable Flags */
uint16_t SDIWEN : 15;
/** Reserved */
uint16_t RsvdP0 : 1;
} __attribute__((packed));
uint16_t Raw;
} WAKEEN;
/** Wake Status */
union
{
struct
{
/** SDIN State Change Status Flags */
uint16_t SDIWAKE : 15;
/** Reserved */
uint16_t RsvdZ0 : 1;
} __attribute__((packed));
uint16_t Raw;
} WAKESTS;
/** Global Status */
union
{
struct
{
uint16_t RsvdZ0 : 1;
uint16_t FSTS : 1;
uint16_t RsvdZ1 : 14;
} __attribute__((packed));
uint16_t Raw;
} GSTS;
/** Reserved */
uint8_t Rsvd0[6];
/** Output Stream Payload Capability */
uint16_t OUTSTRMPAY;
/** Input Stream Payload Capability */
uint16_t INSTRMPAY;
/** Reserved */
uint8_t Rsvd1[4];
/** Interrupt Control */
union
{
struct
{
/** Stream Interrupt Enable
*
* Bit 0 = Input Stream 0
* Bit 1 = Input Stream 1
* Bit 2 = Output Stream 0
* Bit 3 = Output Stream 1
* Bit 4 = Output Stream 2
* Bit 5 = Bidirectional Stream 0
* Bits 6-28 = Reserved
*/
uint32_t SIE : 30;
/** Controller Interrupt Enable */
uint32_t CIE : 1;
/** Global Interrupt Enable */
uint32_t GIE : 1;
} __attribute__((packed));
uint32_t Raw;
} INTCTL;
/** Interrupt Status */
union
{
struct
{
/** Stream Interrupt Status */
uint32_t SIS : 30;
/** Controller Interrupt Status */
uint32_t CIS : 1;
/** Global Interrupt Status */
uint32_t GIS : 1;
} __attribute__((packed));
uint32_t Raw;
} INTSTS;
/** Reserved */
uint8_t Rsvd2[8];
/** Wall Clock Counter */
uint32_t WALCLK;
/** Reserved */
uint8_t Rsvd3[4];
/** Stream Synchronization */
union
{
struct
{
/** Stream Synchronization Bits */
uint32_t SSYNC : 30;
/** Reserved */
uint32_t RsvdP0 : 2;
} __attribute__((packed));
uint32_t Raw;
} SSYNC;
/** Reserved */
uint8_t Rsvd4[4];
/** CORB Lower Base Address */
union
{
struct
{
/** CORB Lower Base Unimplemented Bits */
uint32_t Unimplemented : 7;
/** CORB Lower Base Address */
uint32_t CORBLBASE : 25;
} __attribute__((packed));
uint32_t Raw;
} CORBLBASE;
/** CORB Upper Base Address */
uint32_t CORBUBASE;
/** CORB Write Pointer */
union
{
struct
{
/** CORB Write Pointer */
uint16_t CORBWP : 8;
/** Reserved */
uint16_t RsvdP0 : 8;
} __attribute__((packed));
uint16_t Raw;
} CORBWP;
/** CORB Read Pointer */
union
{
struct
{
/** CORB Read Pointer */
uint16_t CORBRP : 8;
/** Reserved */
uint16_t RsvdP0 : 7;
/** CORB Read Pointer Reset */
uint16_t CORBRPRST : 1;
} __attribute__((packed));
uint16_t Raw;
} CORBRP;
/** CORB Control */
union
{
struct
{
/** CORB Memory Error Interrupt Enable */
uint8_t CMEIE : 1;
/** Enable CORB DMA Engine
*
* 0 = DMA Stop
* 1 = DMA Run
*
* @note Must read the value back.
*/
uint8_t CORBRUN : 1;
/** Reserved */
uint8_t RsvdP0 : 6;
} __attribute__((packed));
uint8_t Raw;
} CORBCTL;
/** CORB Status */
union
{
struct
{
/** CORB Memory Error Indication */
uint8_t CMEI : 1;
/** Reserved */
uint8_t RsvdZ0 : 7;
} __attribute__((packed));
uint8_t Raw;
} CORBSTS;
/** CORB Size */
union
{
struct
{
/** CORB Size
*
* 00b = 2 entries
* 01b = 16 entries
* 10b = 256 entries
* 11b = Reserved
*/
uint8_t CORBSIZE : 2;
/** Reserved */
uint8_t RsvdP0 : 2;
/** CORB Size Capability
*
* 0001b = 2 entries
* 0010b = 16 entries
* 0100b = 256 entries
* 1000b = Reserved
*/
uint8_t CORBSZCAP : 4;
} __attribute__((packed));
uint8_t Raw;
} CORBSIZE;
/** Reserved */
uint8_t Rsvd5;
/** RIRB Lower Base Address */
union
{
struct
{
/** RIRB Lower Base Unimplemented Bits */
uint32_t Unimplemented : 7;
/** RIRB Lower Base Address */
uint32_t RIRBLBASE : 25;
} __attribute__((packed));
uint32_t Raw;
} RIRBLBASE;
/** RIRB Upper Base Address */
uint32_t RIRBUBASE;
/** RIRB Write Pointer */
union
{
struct
{
/** RIRB Write Pointer */
uint16_t RIRBWP : 8;
/** Reserved */
uint16_t RsvdP0 : 7;
/** RIRB Write Pointer Reset */
uint16_t RIRBWPRST : 1;
} __attribute__((packed));
uint16_t Raw;
} RIRBWP;
/** Response Interrupt Count */
union
{
struct
{
/** N Response Interrupt Count
*
* 00000001b = 1 Response sent to RIRB
* ...
* 11111111b = 255 Responses sent to RIRB
* 00000000b = 256 Response sent to RIRB
*/
uint16_t RINTCNT : 8;
/** Reserved */
uint16_t RsvdP0 : 8;
} __attribute__((packed));
uint16_t Raw;
} RINTCNT;
/** RIRB Control */
union
{
struct
{
/** Response Interrupt Control
*
* 0 = Disable Interrupt
* 1 = Generate an interrupt after N responses are sent to the RIRB
*/
uint8_t RINTCTL : 1;
/** RIRB DMA Enable
*
* 0 = DMA Stop
* 1 = DMA Run
*/
uint8_t RIRBDMAEN : 1;
/** Response Overrun Interrupt Control */
uint8_t RIRBOIC : 1;
/** Reserved */
uint8_t RsvdP0 : 5;
} __attribute__((packed));
uint8_t Raw;
} RIRBCTL;
/** RIRB Status */
union
{
struct
{
/** Response Interrupt */
uint8_t RINTFL : 1;
/** Reserved */
uint8_t RsvdZ0 : 1;
/** Response Overrun Interrupt Status */
uint8_t RIRBOIS : 1;
/** Reserved */
uint8_t RsvdZ1 : 5;
} __attribute__((packed));
uint8_t Raw;
} RIRBSTS;
/** RIRB Size */
union
{
struct
{
/** RIRB Size
*
* 00b = 2 entries
* 01b = 16 entries
* 10b = 256 entries
* 11b = Reserved
*/
uint8_t RIRBSIZE : 2;
/** Reserved */
uint8_t RsvdP0 : 2;
/** RIRB Size Capability
*
* 0001b = 2 entries
* 0010b = 16 entries
* 0100b = 256 entries
* 1000b = Reserved
*/
uint8_t RIRBSZCAP : 4;
} __attribute__((packed));
uint8_t Raw;
} RIRBSIZE;
/** Reserved */
uint8_t Rsvd6;
/** Immediate Command Output Interface */
uint32_t ICOI;
/** Immediate Command Input Interface */
uint32_t ICII;
/** Immediate Command Status */
uint16_t ICIS;
/** Reserved */
uint8_t Rsvd7[6];
/** DMA Position Buffer Lower Base */
union
{
struct
{
/** DMA Position Buffer Enable */
uint32_t DPBEN : 1;
/** Reserved */
uint32_t RsvdZ0 : 6;
/** DMA Position Lower Base Address */
uint32_t DPLBASE : 25;
} __attribute__((packed));
uint32_t Raw;
} DPIBLBASE;
/** DMA Position Buffer Upper Base */
uint32_t DPIBUBASE;
/** Reserved */
uint8_t Rsvd8[8];
StreamDescriptor SD[];
} __attribute__((packed));
#endif
EXTERNC int cxx_Panic();
EXTERNC int cxx_Probe();
EXTERNC int cxx_Initialize();
EXTERNC int cxx_Finalize();

31
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/*
This file is part of Fennix Drivers.
Fennix Drivers is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Drivers is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
*/
#include <base.h>
#include "hda.hpp"
int DriverEntry() { return cxx_Initialize(); }
int DriverFinal() { return cxx_Finalize(); }
int DriverPanic() { return cxx_Panic(); }
int DriverProbe() { return cxx_Probe(); }
DriverInfo("hda",
"Intel High Definition Audio Driver",
"EnderIce2",
"0.1",
"GPLv3");