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/*
* Video On Demand Samples
*
* Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You may also obtain this software under a propriety license from Microchip.
* Please contact Microchip for further information.
*
*/
/*----------------------------------------------------------*/
/*! \file
* \brief This component provides helper tools to deal with USB endpoints.
*/
/*----------------------------------------------------------*/
#ifndef DRIVERCONFIGURATION_H
#define DRIVERCONFIGURATION_H
#include <stdint.h>
#include <stdbool.h>
#include "Types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/*----------------------------------------------------------*/
/*! \brief Checks if the given USB device instance exists.
*
* \param deviceInstance - The device instance of the USB INIC, starting at 0 for the first instance.
*
* \return true: Device exists.
* \return false: Device does not exist.
*/
/*----------------------------------------------------------*/
bool ExistsUsbDeviceInstance( uint8_t deviceInstance );
/*----------------------------------------------------------*/
/*! \brief Checks if the given MLB device instance exists.
*
* \param deviceInstance - The device instance of the MLB INIC, starting at 0 for the first instance.
*
* \return true: Device exists.
* \return false: Device does not exist.
*/
/*----------------------------------------------------------*/
bool ExistsMlbDeviceInstance( uint8_t deviceInstance );
/*----------------------------------------------------------*/
/*! \brief Checks if the given I2C device instance exists.
*
* \param deviceInstance - The device instance of the I2C INIC, starting at 0 for the first instance.
*
* \return true: Device exists.
* \return false: Device does not exist.
*/
/*----------------------------------------------------------*/
bool ExistsI2CDeviceInstance( uint8_t deviceInstance );
/*----------------------------------------------------------*/
/*! \brief Retreives the Linux character device names for the given USB device instance and the endpoint address.
*
* \note If the given buffer is too small to hold the whole path, the string is truncated and not useable!
*
* \param deviceInstance - The device instance of the USB INIC, starting at 0 for the first instance.
* \param endpointAddress - The USB endpoint address, RX endpoints starting with upper bit set (0x8X).
* \param deviceName - [in,out] Given buffer will be filled with device name (starting with /dev/).
* \param deviceNameLength - The length of the given deviceName buffer in bytes.
* \param systemName - [in,out] Given buffer will be filled with system name (starting with /sys/).
* \param systemNameLength - The length of the given systemName buffer in bytes.
* \param linkName - [in,out] Given buffer will be filled with the string needed to register this device to an AIM
* \param linkNameLength - The length of the given linkName buffer in bytes.
*
* \return true: Operation was successful.
* \return false: Operation failed, device or endpoint does not exist.
*/
/*----------------------------------------------------------*/
bool GetUsbDeviceNames( uint8_t deviceInstance, uint8_t endpointAddress, char *deviceName,
uint16_t deviceNameLength, char *systemName, uint16_t systemNameLength, char *linkName,
uint16_t linkNameLength );
/*----------------------------------------------------------*/
/*! \brief Retreives the Linux character device names for the given MLB device instance and the endpoint address.
*
* \note If the given buffer is too small to hold the whole path, the string is truncated and not useable!
*
* \param deviceInstance - The device instance of the USB INIC, starting at 0 for the first instance.
* \param mlbChannelAddress - The MLB channel address
* \param deviceName - [in,out] Given buffer will be filled with device name (starting with /dev/).
* \param deviceNameLength - The length of the given deviceName buffer in bytes.
* \param systemName - [in,out] Given buffer will be filled with system name (starting with /sys/).
* \param systemNameLength - The length of the given systemName buffer in bytes.
* \param linkName - [in,out] Given buffer will be filled with the string needed to register this device to an AIM
* \param linkNameLength - The length of the given linkName buffer in bytes.
*
* \return true: Operation was successful.
* \return false: Operation failed, device or endpoint does not exist.
*/
/*----------------------------------------------------------*/
bool GetMlbDeviceNames( uint8_t deviceInstance, uint8_t mlbChannelAddress, char *deviceName,
uint16_t deviceNameLength, char *systemName, uint16_t systemNameLength, char *linkName,
uint16_t linkNameLength );
/*----------------------------------------------------------*/
/*! \brief Retreives the Linux character device names for the given I2C device instance and the endpoint address.
*
* \note If the given buffer is too small to hold the whole path, the string is truncated and not useable!
*
* \param deviceInstance - The device instance of the I2C INIC, starting at 0 for the first instance.
* \param isTx - true, if the names for transmission path should be retrieved, otherwise for the reception path.
* \param deviceName - [in,out] Given buffer will be filled with device name (starting with /dev/).
* \param deviceNameLength - The length of the given deviceName buffer in bytes.
* \param systemName - [in,out] Given buffer will be filled with system name (starting with /sys/).
* \param systemNameLength - The length of the given systemName buffer in bytes.
* \param linkName - [in,out] Given buffer will be filled with the string needed to register this device to an AIM
* \param linkNameLength - The length of the given linkName buffer in bytes.
*
* \return true: Operation was successful.
* \return false: Operation failed, device or endpoint does not exist.
*/
/*----------------------------------------------------------*/
bool GetI2CDeviceNames( uint8_t deviceInstance, bool isTx, char *deviceName, uint16_t deviceNameLength,
char *systemName, uint16_t systemNameLength, char *linkName, uint16_t linkNameLength );
/*----------------------------------------------------------*/
/*! \brief Closes the MOST channel.
*
* \param device - The system path to configure the MOST device (starting with "/sys/").
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool CloseMostChannel( const char *device );
/*----------------------------------------------------------*/
/*! \brief Configures the MOST channel.
*
* \param device - The system path to configure the MOST device (starting with "/sys/").
* \param mostType - The MOST data type (control, asynchron, synchron, isochron).
* \param direction - The direction of the stream (directionRX, directionTX).
* \param numBuf - The amount of buffers.
* \param bufSize - The size of each buffer in bytes.
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool ConfigureMostChannel( const char *device, EPDataType_t mostType, EPDirection_t direction, uint32_t numBuf,
uint32_t bufSize );
/*----------------------------------------------------------*/
/*! \brief Configures the isochronous channel of a device.
* \note This function has to be called before ConfigureMostChannel!
*
* \param device - The system path to configure the MOST device (starting with "/sys/").
* \param subbufferSize - The amount of bytes for a single subbuffer (eg. 188 or 196 bytes).
* \param packetsPerTransaction - The amount of ischronous packets per transaction.
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool ConfigureIsocChannel( const char *device, uint32_t subbufferSize, uint32_t packetsPerTransaction );
/*----------------------------------------------------------*/
/*! \brief Configures the Synchronous channel of a device.
* \note This function has to be called before ConfigureMostChannel!
*
* \param device - The system path to configure the MOST device (starting with "/sys/").
* \param syncBlockWidth - The bandwidth of a single synchronous frame. Ignored if not sync channel.
* \param amounOfSyncFrames - The amount of synchronous frames per USB packet. Ignored if not sync channel.
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool ConfigureSyncChannel( const char *device, uint32_t syncBlockWidth, uint32_t amounOfSyncFrames );
/*----------------------------------------------------------*/
/*! \brief Creates a character device for the given device's link name.
*
* \param linkName - [in] Link name, which is needed to register this device to an AIM.
* \param deviceName - [in,out] Device name (starting with /dev/).
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool LinkToCharacterDevice( const char *linkName, const char *deviceName );
/*----------------------------------------------------------*/
/*! \brief Creates a audio device (ALSA) for the given device's link name.
*
* \param linkName - [in] Link name, which is needed to register this device to an AIM.
* \param subBufferSize - [in] The amount of bytes for all channels of this connection on the MOST.
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool LinkToAudioDevice( const char *linkName, uint16_t subBufferSize );
/*----------------------------------------------------------*/
/*! \brief Creates a Video for Linux device (V4L) for the given device's link name.
*
* \param linkName - [in] Link name, which is needed to register this device to an AIM.
*
* \return True if no error
*/
/*----------------------------------------------------------*/
bool LinkToVideoForLinuxDevice( const char *linkName );
/*----------------------------------------------------------*/
/*! \brief Parsed the global errno variable and generate a human readable error description out of it.
*
* \return Zero terminated error description string.
*/
/*----------------------------------------------------------*/
const char *GetErrnoString();
#ifdef __cplusplus
}
#endif
#endif //DRIVERCONFIGURATION_H
|
