CloverBootloader/Include/Protocol/AudioIo.h
2019-09-03 12:58:42 +03:00

227 lines
7.4 KiB
C

/*
* File: AudioIo.h
*
* Copyright (c) 2018 John Davis
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _EFI_AUDIO_IO_H_
#define _EFI_AUDIO_IO_H_
#include <Uefi.h>
// Audio I/O protocol GUID.
#define EFI_AUDIO_IO_PROTOCOL_GUID { \
0xF05B559C, 0x1971, 0x4AF5, { 0xB2, 0xAE, 0xD6, 0x08, 0x08, 0xF7, 0x4F, 0x70 } \
}
extern EFI_GUID gEfiAudioIoProtocolGuid;
typedef struct _EFI_AUDIO_IO_PROTOCOL EFI_AUDIO_IO_PROTOCOL;
// Port type.
typedef enum {
EfiAudioIoTypeOutput = 0,
EfiAudioIoTypeInput,
EfiAudioIoTypeMaximum
} EFI_AUDIO_IO_PROTOCOL_TYPE;
// Device type.
typedef enum {
EfiAudioIoDeviceLine = 0,
EfiAudioIoDeviceSpeaker,
EfiAudioIoDeviceHeadphones,
EfiAudioIoDeviceSpdif,
EfiAudioIoDeviceMic,
EfiAudioIoDeviceHdmi,
EfiAudioIoDeviceOther,
EfiAudioIoDeviceMaximum
} EFI_AUDIO_IO_PROTOCOL_DEVICE;
// Port location.
typedef enum {
EfiAudioIoLocationNone = 0,
EfiAudioIoLocationRear,
EfiAudioIoLocationFront,
EfiAudioIoLocationLeft,
EfiAudioIoLocationRight,
EfiAudioIoLocationTop,
EfiAudioIoLocationBottom,
EfiAudioIoLocationOther,
EfiAudioIoLocationMaximum
} EFI_AUDIO_IO_PROTOCOL_LOCATION;
// Port surface.
typedef enum {
EfiAudioIoSurfaceExternal = 0,
EfiAudioIoSurfaceInternal,
EfiAudioIoSurfaceOther,
EfiAudioIoSurfaceMaximum
} EFI_AUDIO_IO_PROTOCOL_SURFACE;
// Size in bits of each sample.
typedef enum {
EfiAudioIoBits8 = BIT0,
EfiAudioIoBits16 = BIT1,
EfiAudioIoBits20 = BIT2,
EfiAudioIoBits24 = BIT3,
EfiAudioIoBits32 = BIT4
} EFI_AUDIO_IO_PROTOCOL_BITS;
// Frequency of each sample.
typedef enum {
EfiAudioIoFreq8kHz = BIT0,
EfiAudioIoFreq11kHz = BIT1,
EfiAudioIoFreq16kHz = BIT2,
EfiAudioIoFreq22kHz = BIT3,
EfiAudioIoFreq32kHz = BIT4,
EfiAudioIoFreq44kHz = BIT5,
EfiAudioIoFreq48kHz = BIT6,
EfiAudioIoFreq88kHz = BIT7,
EfiAudioIoFreq96kHz = BIT8,
EfiAudioIoFreq192kHz = BIT9
} EFI_AUDIO_IO_PROTOCOL_FREQ;
// Audio input/output structure.
typedef struct {
EFI_AUDIO_IO_PROTOCOL_TYPE Type;
EFI_AUDIO_IO_PROTOCOL_BITS SupportedBits;
EFI_AUDIO_IO_PROTOCOL_FREQ SupportedFreqs;
EFI_AUDIO_IO_PROTOCOL_DEVICE Device;
EFI_AUDIO_IO_PROTOCOL_LOCATION Location;
EFI_AUDIO_IO_PROTOCOL_SURFACE Surface;
} EFI_AUDIO_IO_PROTOCOL_PORT;
// Maximum number of channels.
#define EFI_AUDIO_IO_PROTOCOL_MAX_CHANNELS 16
#define EFI_AUDIO_IO_PROTOCOL_MAX_VOLUME 100
// Callback function.
typedef
VOID
(EFIAPI *EFI_AUDIO_IO_CALLBACK)(
IN EFI_AUDIO_IO_PROTOCOL *AudioIo,
IN VOID *Context);
/**
Gets the collection of output ports.
@param[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
@param[out] OutputPorts A pointer to a buffer where the output ports will be placed.
@param[out] OutputPortsCount The number of ports in OutputPorts.
@retval EFI_SUCCESS The audio data was played successfully.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_AUDIO_IO_GET_OUTPUTS)(
IN EFI_AUDIO_IO_PROTOCOL *This,
OUT EFI_AUDIO_IO_PROTOCOL_PORT **OutputPorts,
OUT UINTN *OutputPortsCount);
/**
Sets up the device to play audio data.
@param[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
@param[in] OutputIndex The zero-based index of the desired output.
@param[in] Volume The volume (0-100) to use.
@param[in] Bits The width in bits of the source data.
@param[in] Freq The frequency of the source data.
@param[in] Channels The number of channels the source data contains.
@retval EFI_SUCCESS The audio data was played successfully.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_AUDIO_IO_SETUP_PLAYBACK)(
IN EFI_AUDIO_IO_PROTOCOL *This,
IN UINT8 OutputIndex,
IN UINT8 Volume,
IN EFI_AUDIO_IO_PROTOCOL_FREQ Freq,
IN EFI_AUDIO_IO_PROTOCOL_BITS Bits,
IN UINT8 Channels);
/**
Begins playback on the device and waits for playback to complete.
@param[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
@param[in] Data A pointer to the buffer containing the audio data to play.
@param[in] DataLength The size, in bytes, of the data buffer specified by Data.
@param[in] Position The position in the buffer to start at.
@retval EFI_SUCCESS The audio data was played successfully.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_AUDIO_IO_START_PLAYBACK)(
IN EFI_AUDIO_IO_PROTOCOL *This,
IN VOID *Data,
IN UINTN DataLength,
IN UINTN Position OPTIONAL);
/**
Begins playback on the device asynchronously.
@param[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
@param[in] Data A pointer to the buffer containing the audio data to play.
@param[in] DataLength The size, in bytes, of the data buffer specified by Data.
@param[in] Position The position in the buffer to start at.
@param[in] Callback A pointer to an optional callback to be invoked when playback is complete.
@param[in] Context A pointer to data to be passed to the callback function.
@retval EFI_SUCCESS The audio data was played successfully.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_AUDIO_IO_START_PLAYBACK_ASYNC)(
IN EFI_AUDIO_IO_PROTOCOL *This,
IN VOID *Data,
IN UINTN DataLength,
IN UINTN Position OPTIONAL,
IN EFI_AUDIO_IO_CALLBACK Callback OPTIONAL,
IN VOID *Context OPTIONAL);
/**
Stops playback on the device.
@param[in] This A pointer to the EFI_AUDIO_IO_PROTOCOL instance.
@retval EFI_SUCCESS The audio data was played successfully.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_AUDIO_IO_STOP_PLAYBACK)(
IN EFI_AUDIO_IO_PROTOCOL *This);
// Protocol struct.
struct _EFI_AUDIO_IO_PROTOCOL {
EFI_AUDIO_IO_GET_OUTPUTS GetOutputs;
EFI_AUDIO_IO_SETUP_PLAYBACK SetupPlayback;
EFI_AUDIO_IO_START_PLAYBACK StartPlayback;
EFI_AUDIO_IO_START_PLAYBACK_ASYNC StartPlaybackAsync;
EFI_AUDIO_IO_STOP_PLAYBACK StopPlayback;
};
#endif