hda_stream Struct Reference

#include <driver.h>

Collaboration diagram for hda_stream:

Public Member Functions
uint8	Read8 (uint32 reg)
uint16	Read16 (uint32 reg)
uint32	Read32 (uint32 reg)
void	Write8 (uint32 reg, uint8 value)
void	Write16 (uint32 reg, uint16 value)
void	Write32 (uint32 reg, uint32 value)

Public Attributes
uint32	id
uint32	offset
bool	running
spinlock	lock
uint32	type
hda_controller *	controller
uint32	pin_widget
uint32	io_widgets [MAX_IO_WIDGETS]
uint32	num_io_widgets
uint32	sample_rate
uint32	sample_format
uint32	num_buffers
uint32	num_channels
uint32	buffer_length
uint32	buffer_size
uint32	sample_size
uint8 *	buffers [STREAM_MAX_BUFFERS]
phys_addr_t	physical_buffers [STREAM_MAX_BUFFERS]
volatile bigtime_t	real_time
volatile uint64	frames_count
uint32	last_link_frame_position
volatile int32	buffer_cycle
uint32	rate
uint32	bps
area_id	buffer_area
area_id	buffer_descriptors_area
phys_addr_t	physical_buffer_descriptors
int32	incorrect_position_count
bool	use_dma_position

Detailed Description

This structure describes a single stream of audio data, which is can have multiple channels (for stereo or better).

Definition at line 159 of file driver.h.

Member Function Documentation

Read16()

uint16 hda_stream::Read16 ( uint32  reg )

inline

Definition at line 204 of file driver.h.

    {
        return controller->Read16(HDAC_STREAM_BASE + offset + reg);
    }

Read32()

uint32 hda_stream::Read32 ( uint32  reg )

inline

Definition at line 209 of file driver.h.

    {
        return controller->Read32(HDAC_STREAM_BASE + offset + reg);
    }

Read8()

uint8 hda_stream::Read8 ( uint32  reg )

inline

Definition at line 199 of file driver.h.

    {
        return controller->Read8(HDAC_STREAM_BASE + offset + reg);
    }

Write16()

void hda_stream::Write16 ( uint32  reg, uint16  value  )

inline

Definition at line 219 of file driver.h.

    {
        *(vuint16*)(controller->regs + HDAC_STREAM_BASE + offset + reg) = value;
    }

Write32()

void hda_stream::Write32 ( uint32  reg, uint32  value  )

inline

Definition at line 224 of file driver.h.

    {
        *(vuint32*)(controller->regs + HDAC_STREAM_BASE + offset + reg) = value;
    }

Write8()

void hda_stream::Write8 ( uint32  reg, uint8  value  )

inline

Definition at line 214 of file driver.h.

    {
        *(controller->regs + HDAC_STREAM_BASE + offset + reg) = value;
    }

Member Data Documentation

bps

uint32 hda_stream::bps

Definition at line 190 of file driver.h.

buffer_area

area_id hda_stream::buffer_area

Definition at line 192 of file driver.h.

buffer_cycle

volatile int32 hda_stream::buffer_cycle

Definition at line 188 of file driver.h.

buffer_descriptors_area

area_id hda_stream::buffer_descriptors_area

Definition at line 193 of file driver.h.

buffer_length

uint32 hda_stream::buffer_length

Definition at line 177 of file driver.h.

buffer_size

uint32 hda_stream::buffer_size

Definition at line 178 of file driver.h.

buffers

uint8* hda_stream::buffers[STREAM_MAX_BUFFERS]

Definition at line 180 of file driver.h.

controller

hda_controller* hda_stream::controller

Definition at line 166 of file driver.h.

Referenced by Read16(), Read32(), Read8(), Write16(), Write32(), and Write8().

frames_count

volatile uint64 hda_stream::frames_count

Definition at line 186 of file driver.h.

id

uint32 hda_stream::id

Definition at line 160 of file driver.h.

incorrect_position_count

int32 hda_stream::incorrect_position_count

Definition at line 196 of file driver.h.

io_widgets

uint32 hda_stream::io_widgets[MAX_IO_WIDGETS]

Definition at line 169 of file driver.h.

last_link_frame_position

uint32 hda_stream::last_link_frame_position

Definition at line 187 of file driver.h.

lock

spinlock hda_stream::lock

Definition at line 163 of file driver.h.

num_buffers

uint32 hda_stream::num_buffers

Definition at line 175 of file driver.h.

num_channels

uint32 hda_stream::num_channels

Definition at line 176 of file driver.h.

num_io_widgets

uint32 hda_stream::num_io_widgets

Definition at line 170 of file driver.h.

offset

uint32 hda_stream::offset

Definition at line 161 of file driver.h.

physical_buffer_descriptors

phys_addr_t hda_stream::physical_buffer_descriptors

Definition at line 194 of file driver.h.

physical_buffers

phys_addr_t hda_stream::physical_buffers[STREAM_MAX_BUFFERS]

Definition at line 182 of file driver.h.

pin_widget

uint32 hda_stream::pin_widget

Definition at line 168 of file driver.h.

rate

uint32 hda_stream::rate

Definition at line 190 of file driver.h.

real_time

volatile bigtime_t hda_stream::real_time

Definition at line 185 of file driver.h.

running

bool hda_stream::running

Definition at line 162 of file driver.h.

sample_format

uint32 hda_stream::sample_format

Definition at line 173 of file driver.h.

sample_rate

uint32 hda_stream::sample_rate

Definition at line 172 of file driver.h.

sample_size

uint32 hda_stream::sample_size

Definition at line 179 of file driver.h.

type

uint32 hda_stream::type

Definition at line 164 of file driver.h.

use_dma_position

bool hda_stream::use_dma_position

Definition at line 197 of file driver.h.

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The documentation for this struct was generated from the following file:

• drivers/wdm/audio/hdaudbus/driver.h