mirror of
https://github.com/Fennix-Project/Drivers.git
synced 2025-05-25 22:14:31 +00:00
Implemented AC'97 audio driver
This commit is contained in:
Alex
parent
1f4751f90f
commit
09f26f1820
GPG Key ID:
EACC3AD603BAB4DD
379
Audio/AudioCodec97/AudioCodec97Driver.cpp
Normal file
379
Audio/AudioCodec97/AudioCodec97Driver.cpp
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@ -0,0 +1,379 @@
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#include "ac97.hpp"
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#include "../../../Kernel/DAPI.hpp"
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#include "../../../Kernel/Fex.hpp"
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extern "C" int DriverEntry(void *Data);
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int CallbackHandler(KernelCallback *Data);
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HEAD(FexFormatType_Driver, FexOSType_Fennix, DriverEntry);
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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__attribute__((section(".extended"))) FexExtended ExtendedHeader = {
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.Driver = {
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.Name = "Audio Codec '97 Driver",
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.Type = FexDriverType_Audio,
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.TypeFlags = FexDriverInputTypes_None,
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.OverrideOnConflict = false,
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.Callback = CallbackHandler,
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.Bind = {
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.Type = BIND_PCI,
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.PCI = {
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.VendorID = {0x8086},
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.DeviceID = {0x2415},
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.Class = 0x4,
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.SubClass = 0x3,
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.ProgIF = 0x0,
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}}}};
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KernelAPI *KAPI;
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#define print(msg) KAPI->Util.DebugPrint((char *)(msg), KAPI->Info.DriverUID)
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/* --------------------------------------------------------------------------------------------------------- */
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/* https://wiki.osdev.org/AC97 */
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PCIDeviceHeader *PCIBaseAddress;
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BARData BAR;
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BufferDescriptorList *DescriptorList = nullptr;
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AudioEncodingValues Encoding = AE_PCMs16le;
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char Channels = 2;
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char Volume = AV_Maximum;
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bool Mute = false;
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int SampleRate = 48000;
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char SampleSize = 2;
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uint16_t MixerVolume(uint8_t Left, uint8_t Right, bool Mute)
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{
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return ((uint16_t)((Right & 0x3F) |
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((Left & 0x3F) << 0x8) |
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(Mute & 1 << 0xF)));
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}
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int DriverEntry(void *Data)
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{
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if (!Data)
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return INVALID_KERNEL_API;
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KAPI = (KernelAPI *)Data;
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if (KAPI->Version.Major < 0 || KAPI->Version.Minor < 0 || KAPI->Version.Patch < 0)
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return KERNEL_API_VERSION_NOT_SUPPORTED;
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return OK;
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}
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int CallbackHandler(KernelCallback *Data)
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{
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switch (Data->Reason)
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{
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case AcknowledgeReason:
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{
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print("Kernel acknowledged the driver.");
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break;
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}
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case ConfigurationReason:
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{
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print("Driver received configuration data.");
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PCIBaseAddress = reinterpret_cast<PCIDeviceHeader *>(Data->RawPtr);
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PCIBaseAddress->Command |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
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/* Native Audio Mixer Base Address */
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uint32_t PCIBAR0 = ((PCIHeader0 *)PCIBaseAddress)->BAR0;
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/* Native Audio Bus Master Base Address */
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uint32_t PCIBAR1 = ((PCIHeader0 *)PCIBaseAddress)->BAR1;
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BAR.Type = PCIBAR0 & 1;
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BAR.MixerAddress = PCIBAR0 & (~3);
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BAR.BusMasterAddress = PCIBAR1 & (~15);
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if (BAR.Type != 1)
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{
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print("BAR0 is not I/O.");
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return INVALID_PCI_BAR;
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}
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uint16_t OutputPCMTransferControl = BAR.BusMasterAddress + PCMOUT_TransferControl;
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/* DescriptorList address MUST be physical. */
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DescriptorList = (BufferDescriptorList *)KAPI->Memory.RequestPage((sizeof(BufferDescriptorList) * DescriptorListLength) / KAPI->Memory.PageSize + 1);
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KAPI->Util.memset(DescriptorList, 0, sizeof(BufferDescriptorList) * DescriptorListLength);
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for (int i = 0; i < DescriptorListLength; i++)
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{
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DescriptorList[i] = {
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.Address = (uint32_t)(uint64_t)KAPI->Memory.RequestPage(sizeof(uint16_t *) / KAPI->Memory.PageSize + 1),
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.SampleCount = (uint16_t)(KAPI->Memory.PageSize / SampleSize),
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.Flags = 0,
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};
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}
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outw(BAR.MixerAddress + NAM_MasterVolume, MixerVolume(Volume, Volume, Mute));
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outw(BAR.MixerAddress + NAM_PCMOutVolume, MixerVolume(Volume, Volume, Mute));
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outb(OutputPCMTransferControl, inb(OutputPCMTransferControl) | TC_TransferReset);
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while (inb(OutputPCMTransferControl) & TC_TransferReset)
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;
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uint32_t GlobalControl = inl(BAR.BusMasterAddress + NABM_GlobalControl);
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GlobalControl = (GlobalControl & ~((0x3U) << 22)); /* PCM 16-bit mode */
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GlobalControl = (GlobalControl & ~((0x3U) << 20)); /* 2 channels */
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GlobalControl |= GC_GlobalInterruptEnable;
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GlobalControl &= ~GC_ShutDown;
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outl(BAR.BusMasterAddress + PCMOUT_BufferDescriptorList, (uint32_t)(uint64_t)DescriptorList);
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outl(BAR.BusMasterAddress + NABM_GlobalControl, GlobalControl);
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uint8_t TransferControl = inb(OutputPCMTransferControl);
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TransferControl |= TC_LastBufferEntryInterruptEnable | TC_IOCInterruptEnable | TC_FifoERRORInterruptEnable;
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outb(OutputPCMTransferControl, TransferControl);
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// Stop DMA
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outb(OutputPCMTransferControl, inb(OutputPCMTransferControl) & ~TC_DMAControllerControl);
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print("AC'97 configured.");
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break;
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}
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case AdjustReason:
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{
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if (Data->AudioCallback.Adjust._Volume)
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{
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Volume = Data->AudioCallback.Adjust.Volume;
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outw(BAR.MixerAddress + NAM_MasterVolume, MixerVolume(Volume, Volume, Mute));
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outw(BAR.MixerAddress + NAM_PCMOutVolume, MixerVolume(Volume, Volume, Mute));
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}
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else if (Data->AudioCallback.Adjust._Encoding)
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{
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print("Encoding changing not supported yet.");
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}
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else if (Data->AudioCallback.Adjust._SampleRate)
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{
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switch (Data->AudioCallback.Adjust.SampleRate)
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{
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case 0:
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{
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SampleRate = 8000;
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break;
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}
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case 1:
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{
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SampleRate = 11025;
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break;
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}
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case 2:
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{
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SampleRate = 16000;
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break;
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}
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case 3:
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{
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SampleRate = 22050;
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break;
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}
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case 4:
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{
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SampleRate = 32000;
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break;
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}
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case 5:
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{
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SampleRate = 44100;
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break;
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}
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case 6:
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{
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SampleRate = 48000;
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break;
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}
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case 7:
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{
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SampleRate = 88200;
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break;
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}
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case 8:
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{
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SampleRate = 96000;
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break;
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}
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default:
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{
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SampleRate = 16000;
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print("Invalid sample rate. Defaulting to 16000.");
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break;
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}
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}
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}
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else if (Data->AudioCallback.Adjust._Channels)
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{
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switch (Data->AudioCallback.Adjust.Channels)
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{
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case 0:
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{
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Channels = 1; // Mono
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break;
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}
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case 1:
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{
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Channels = 2; // Stereo
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break;
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}
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default:
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{
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Channels = 2;
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print("Invalid channel count. Defaulting to 2.");
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break;
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}
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}
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}
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break;
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}
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case FetchReason:
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{
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Data->AudioCallback.Fetch.Volume = Volume;
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Data->AudioCallback.Fetch.Encoding = Encoding; /* FIXME */
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Data->AudioCallback.Fetch.SampleRate = SampleRate;
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Data->AudioCallback.Fetch.Channels = Channels;
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break;
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}
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case SendReason:
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{
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unsigned char *Buffer = (unsigned char *)Data->AudioCallback.Send.Data;
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unsigned int Length = Data->AudioCallback.Send.Length;
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if (Length % (SampleSize * Channels))
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{
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print("Invalid buffer length.");
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return INVALID_DATA;
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}
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int TotalBDLToFill = (Length + KAPI->Memory.PageSize - 1) >> 12;
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while (Length > 0)
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{
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bool ActiveDMA = !(inw(BAR.BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
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if (ActiveDMA)
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{
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int RemainingBDL = 0;
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do
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{
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int CurrentBDL = inb(BAR.BusMasterAddress + PCMOUT_BufferDescriptorEntry);
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int LastBDL = inb(BAR.BusMasterAddress + PCMOUT_DescriptorEntries);
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RemainingBDL = LastBDL - CurrentBDL;
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if (RemainingBDL < 0)
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RemainingBDL += DescriptorListLength;
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RemainingBDL += 1;
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if (RemainingBDL >= DescriptorListLength - 1)
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{
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long SampleCount = DescriptorList[(CurrentBDL + 1) % DescriptorListLength].SampleCount / Channels;
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if (SampleCount > 0)
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{
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// KAPI->Util.Sleep(SampleCount * 1000000 / SampleRate); // microseconds
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KAPI->Util.Sleep(SampleCount * 1000 / SampleRate); // milliseconds
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}
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}
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} while (RemainingBDL >= DescriptorListLength - 1 && (!inw(BAR.BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl));
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}
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{
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int CurrentBDL = inb(BAR.BusMasterAddress + PCMOUT_BufferDescriptorEntry);
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int LastBDL = inb(BAR.BusMasterAddress + PCMOUT_DescriptorEntries);
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int NextBDL = LastBDL % DescriptorListLength;
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ActiveDMA = !(inw(BAR.BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
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if (ActiveDMA)
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{
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NextBDL = (LastBDL + 1) % DescriptorListLength;
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if (NextBDL == CurrentBDL)
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continue;
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}
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do
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{
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int Wrote = ((KAPI->Memory.PageSize > Length) ? Length : KAPI->Memory.PageSize);
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if (Wrote == 0)
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break;
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KAPI->Util.memcpy((void *)DescriptorList[NextBDL].Address, Buffer, Wrote);
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DescriptorList[NextBDL].Flags = 0;
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Buffer += Wrote;
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Length -= Wrote;
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DescriptorList[NextBDL].SampleCount = Wrote / SampleSize;
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TotalBDLToFill--;
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NextBDL = (NextBDL + 1) % DescriptorListLength;
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} while (TotalBDLToFill-- && NextBDL != CurrentBDL);
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outb(BAR.BusMasterAddress + PCMOUT_DescriptorEntries, NextBDL - 1);
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ActiveDMA = !(inw(BAR.BusMasterAddress + PCMOUT_Status) & TC_DMAControllerControl);
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if (!ActiveDMA)
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{
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// Start DMA
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outb(BAR.BusMasterAddress + PCMOUT_TransferControl, inb(BAR.BusMasterAddress + PCMOUT_TransferControl) | TC_DMAControllerControl);
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}
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}
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}
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break;
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}
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case StopReason:
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{
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outw(BAR.MixerAddress + NAM_MasterVolume, MixerVolume(AV_Maximum, AV_Maximum, true));
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outw(BAR.MixerAddress + NAM_PCMOutVolume, MixerVolume(AV_Maximum, AV_Maximum, true));
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// Stop DMA
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outb(BAR.BusMasterAddress + PCMOUT_TransferControl, inb(BAR.BusMasterAddress + PCMOUT_TransferControl) & ~TC_DMAControllerControl);
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// Disable interrupts
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uint8_t TransferControl = inb(BAR.BusMasterAddress + PCMOUT_TransferControl);
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TransferControl &= ~(TC_LastBufferEntryInterruptEnable | TC_IOCInterruptEnable | TC_FifoERRORInterruptEnable);
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outb(BAR.BusMasterAddress + PCMOUT_TransferControl, TransferControl);
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// Disable global control
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uint32_t GlobalControl = inl(BAR.BusMasterAddress + NABM_GlobalControl);
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GlobalControl &= ~GC_GlobalInterruptEnable;
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GlobalControl |= GC_ShutDown;
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outl(BAR.BusMasterAddress + NABM_GlobalControl, GlobalControl);
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print("Driver stopped.");
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break;
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}
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case InterruptReason:
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{
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uint16_t Status = inw(BAR.MixerAddress + PCMOUT_Status);
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if (Status & TC_IOCInterruptEnable)
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{
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print("Interrupt on completion.");
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}
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else if (Status & TC_LastBufferEntryInterruptEnable)
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{
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print("Last buffer entry.");
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// Stop DMA
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outb(BAR.BusMasterAddress + PCMOUT_TransferControl, inb(BAR.BusMasterAddress + PCMOUT_TransferControl) & ~TC_DMAControllerControl);
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}
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else if (Status & TC_FifoERRORInterruptEnable)
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{
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print("FIFO error.");
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}
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else
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{
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print("Unknown status.");
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}
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outw(BAR.MixerAddress + PCMOUT_Status, 0xFFFF);
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break;
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}
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default:
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{
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print("Unknown reason.");
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break;
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}
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}
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return OK;
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}
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99
Audio/AudioCodec97/Makefile
Normal file
99
Audio/AudioCodec97/Makefile
Normal file
@ -0,0 +1,99 @@
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# Config file
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include ../../../Makefile.conf
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FILENAME = AudioCodec97.fex
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CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
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CPP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)g++
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LD = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ld
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AS = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)as
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OBJDUMP = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)objdump
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GIT_COMMIT = $(shell git rev-parse HEAD)
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GIT_COMMIT_SHORT = $(shell git rev-parse --short HEAD)
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ifeq ($(OSARCH), amd64)
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S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
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C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
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CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/i686/*" -not -path "./arch/aarch64/*")
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else ifeq ($(OSARCH), i686)
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S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
|
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C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
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CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
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else ifeq ($(OSARCH), aarch64)
|
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S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
|
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C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
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CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/i686/*")
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endif
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HEADERS = $(sort $(dir $(wildcard ../../include/*)))
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OBJ = $(C_SOURCES:.c=.o) $(CPP_SOURCES:.cpp=.o) $(ASM_SOURCES:.asm=.o) $(S_SOURCES:.S=.o) $(PSF_SOURCES:.psf=.o) $(BMP_SOURCES:.bmp=.o)
|
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INCLUDE_DIR = ../../include
|
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|
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LDFLAGS := \
|
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-fPIC -fPIE -pie -Wl,-eDriverEntry \
|
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-Wl,-static,--no-dynamic-linker,-ztext,--no-warn-rwx-segment \
|
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-nostdlib -nodefaultlibs -nolibc \
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-zmax-page-size=0x1000 \
|
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-Wl,-Map file.map -static -Tlinker.ld
|
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WARNCFLAG = -Wall -Wextra
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CFLAGS := \
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-I$(INCLUDE_DIR) \
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-DGIT_COMMIT='"$(GIT_COMMIT)"' \
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-DGIT_COMMIT_SHORT='"$(GIT_COMMIT_SHORT)"'
|
||||
|
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ifeq ($(OSARCH), amd64)
|
||||
|
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CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
|
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-mno-red-zone -mno-sse -mno-sse2 \
|
||||
-march=x86-64 -pipe -ffunction-sections \
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-msoft-float -fno-builtin
|
||||
|
||||
else ifeq ($(OSARCH), i686)
|
||||
|
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CFLAGS += -fPIC -fPIE -pie -mno-80387 -mno-mmx -mno-3dnow \
|
||||
-mno-red-zone -mno-sse -mno-sse2 \
|
||||
-march=i686 -pipe -ffunction-sections \
|
||||
-msoft-float -fno-builtin
|
||||
|
||||
else ifeq ($(OSARCH), aarch64)
|
||||
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CFLAGS += -pipe -fno-builtin -fPIC
|
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endif
|
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build: $(FILENAME)
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||||
ifeq ($(OSARCH), amd64)
|
||||
$(OBJDUMP) -b binary -D -m i386:x86-64 -d $(FILENAME) > file_dump.map
|
||||
else ifeq ($(OSARCH), i686)
|
||||
|
||||
else ifeq ($(OSARCH), aarch64)
|
||||
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||||
endif
|
||||
mv $(FILENAME) ../../out/$(FILENAME)
|
||||
|
||||
$(FILENAME): $(OBJ)
|
||||
$(info Linking $@)
|
||||
$(CC) $(LDFLAGS) $(OBJ) -o $@
|
||||
|
||||
%.o: %.c $(HEADERS)
|
||||
$(info Compiling $<)
|
||||
$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
|
||||
|
||||
%.o: %.cpp $(HEADERS)
|
||||
$(info Compiling $<)
|
||||
$(CPP) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fexceptions -c $< -o $@
|
||||
|
||||
%.o: %.S
|
||||
$(info Compiling $<)
|
||||
ifeq ($(OSARCH), amd64)
|
||||
$(AS) -o $@ $<
|
||||
else ifeq ($(OSARCH), i686)
|
||||
$(AS) -o $@ $<
|
||||
else ifeq ($(OSARCH), aarch64)
|
||||
$(AS) -o $@ $<
|
||||
endif
|
||||
|
||||
clean:
|
||||
rm -f *.o file.map file_dump.map $(OBJ)
|
||||
325
Audio/AudioCodec97/ac97.hpp
Normal file
325
Audio/AudioCodec97/ac97.hpp
Normal file
@ -0,0 +1,325 @@
|
||||
#ifndef __FENNIX_API_AC97_H__
|
||||
#define __FENNIX_API_AC97_H__
|
||||
|
||||
#include <types.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 = NABM_PCMOutBox + NABMBOFF_BufferDescriptorList,
|
||||
|
||||
/**
|
||||
* @brief Number of Actual Processed Buffer Descriptor Entry
|
||||
* @note Length: byte
|
||||
*/
|
||||
PCMOUT_BufferDescriptorEntry = NABM_PCMOutBox + NABMBOFF_BufferDescriptorEntry,
|
||||
|
||||
/**
|
||||
* @brief Number of all Descriptor Entries
|
||||
* @note Length: byte
|
||||
*/
|
||||
PCMOUT_DescriptorEntries = NABM_PCMOutBox + NABMBOFF_DescriptorEntries,
|
||||
|
||||
/**
|
||||
* @brief Status of transferring Data
|
||||
* @note Length: word
|
||||
*/
|
||||
PCMOUT_Status = NABM_PCMOutBox + NABMBOFF_Status,
|
||||
|
||||
/**
|
||||
* @brief Number of transferred Samples in Actual Processed Entry
|
||||
* @note Length: word
|
||||
*/
|
||||
PCMOUT_TransferredSamples = NABM_PCMOutBox + NABMBOFF_TransferredSamples,
|
||||
|
||||
/**
|
||||
* @brief Number of next processed Buffer Entry
|
||||
* @note Length: byte
|
||||
*/
|
||||
PCMOUT_NextProcessedBufferEntry = NABM_PCMOutBox + NABMBOFF_NextProcessedBufferEntry,
|
||||
|
||||
/**
|
||||
* @brief Transfer Control
|
||||
* @note Length: byte
|
||||
*/
|
||||
PCMOUT_TransferControl = NABM_PCMOutBox + 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));
|
||||
|
||||
struct BARData
|
||||
{
|
||||
uint8_t Type;
|
||||
uint64_t MixerAddress;
|
||||
uint64_t BusMasterAddress;
|
||||
};
|
||||
|
||||
#endif // !__FENNIX_API_AC97_H__
|
||||
40
Audio/AudioCodec97/linker.ld
Normal file
40
Audio/AudioCodec97/linker.ld
Normal file
@ -0,0 +1,40 @@
|
||||
OUTPUT_FORMAT(binary)
|
||||
OUTPUT_ARCH(i386:x86-64)
|
||||
|
||||
ENTRY(DriverEntry)
|
||||
|
||||
SECTIONS
|
||||
{
|
||||
.header :
|
||||
{
|
||||
*(.header .header.*)
|
||||
*(.extended .extended.*)
|
||||
}
|
||||
|
||||
.text :
|
||||
{
|
||||
*(.text .text.*)
|
||||
}
|
||||
|
||||
.data :
|
||||
{
|
||||
*(.data .data.*)
|
||||
}
|
||||
|
||||
.rodata :
|
||||
{
|
||||
*(.rodata .rodata.*)
|
||||
}
|
||||
|
||||
.bss :
|
||||
{
|
||||
*(COMMON)
|
||||
*(.bss .bss.*)
|
||||
}
|
||||
|
||||
/DISCARD/ :
|
||||
{
|
||||
*(.eh_frame)
|
||||
*(.note .note.*)
|
||||
}
|
||||
}
|
||||
@ -1,5 +1,5 @@
|
||||
build:
|
||||
|
||||
make --quiet -C AudioCodec97 build
|
||||
|
||||
clean:
|
||||
|
||||
make -C AudioCodec97 clean
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user