audio_formatter: xaudioformatter.h File Reference

| audio_formatter Xilinx SDK Drivers API Documentation

- Overview
- Data Structures
- APIs
- File List
- Examples

Data Structures | Macros | Functions
xaudioformatter.h File Reference

## Overview

Initialization & Configuration

The device driver enables higher layer software (e.g., an application) to communicate to the Audio Formatter core.

XAudioFormatter_CfgInitialize() API is used to initialize the Audio Formatter core. The user needs to first call the XAudioFormatter_LookupConfig() API which returns the Configuration structure pointer which is passed as a parameter to the XAudioFormatter_CfgInitialize() API.

Interrupts The driver does the interrupt handling, and dispatch to the user application through callback functions that user has registered.

Virtual Memory

This driver supports Virtual Memory. The RTOS is responsible for calculating the correct device base address in Virtual Memory space.

Threads

This driver is not thread safe. Any needs for threads or thread mutual exclusion must be satisfied by the layer above this driver.

Asserts

Asserts are used within all Xilinx drivers to enforce constraints on argument values. Asserts can be turned off on a system-wide basis by defining, at compile time, the NDEBUG identifier. By default, asserts are turned on and it is recommended that users leave asserts on during development.

## Data Structures
struct | XAudioFormatter_Config
| This typedef contains configuration information for a audio formatter core. More...
struct | XAudioFormatter
| The audio formatter driver instance data structure. More...
struct | XAudioFormatterHwParams
| This typedef contains hw params information for a audio formatter core. More...

## Macros
#define | XAUDFMT_H_
| Prevent circular inclusions by using protection macros. More...

## Functions
XAudioFormatter_Config * | XAudioFormatter_LookupConfig (u16 DeviceId)
| XAudioFormatter_LookupConfig returns a reference to an XAudioFormatter_Config structure based on the unique device id, DeviceId. More...
u32 | XAudioFormatter_CfgInitialize (XAudioFormatter *InstancePtr, XAudioFormatter_Config *CfgPtr)
| This function initializes the audio formatter core instance. More...
void | XAudioFormatter_InterruptEnable (XAudioFormatter *InstancePtr, u32 Mask)
| This function enables the interrupts for audio formatter core. More...
void | XAudioFormatter_InterruptDisable (XAudioFormatter *InstancePtr, u32 Mask)
| This function disables the interrupts for audio formatter core. More...
void | XAudioFormatterDMAStart (XAudioFormatter *InstancePtr)
| This function starts the dma for audio formatter core. More...
void | XAudioFormatterDMAStop (XAudioFormatter *InstancePtr)
| This function stops the dma for audio formatter core. More...
void | XAudioFormatterSetHwParams (XAudioFormatter *InstancePtr, XAudioFormatterHwParams *hw_params)
| This function sets the hw params for audio formatter core. More...
void | XAudioFormatter_InterruptClear (XAudioFormatter *InstancePtr, u32 mask)
| This function clears the interrupts for audio formatter core. More...
void | XAudioFormatterDMAReset (XAudioFormatter *InstancePtr)
| This function soft resets the audio formatter DMA core. More...
void | XAudioFormatterSetFsMultiplier (XAudioFormatter *InstancePtr, u32 Mclk, u32 Fs)
| This function calculates the Fs multiplier value. More...
u32 | XAudioFormatterGetDMATransferCount (XAudioFormatter *InstancePtr)
| This function returns the No. More...
void | XSdiAud_GetChStat (XAudioFormatter *InstancePtr, u8 *ChStatBuf)
| This function reads all the Channel Status registers and writes to a buffer. More...
void | XAudioFormatterSetS2MMTimeOut (XAudioFormatter *InstancePtr, u32 TimeOut)
| This function sets the S2MM timeout. More...