Implemented AC'97 audio driver

Audio/AudioCodec97/ac97.hpp

@@ -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__