* Copyright 2007-2008, Haiku Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Michael Lotz <mmlr@mlotz.ch>
*/
#include <USBKit.h>
#include <usb_raw.h>
#include <unistd.h>
#include <string.h>
#include <new>
BUSBConfiguration::BUSBConfiguration(BUSBDevice *device, uint32 index, int rawFD)
: fDevice(device),
fIndex(index),
fRawFD(rawFD),
fInterfaces(NULL),
fConfigurationString(NULL)
{
usb_raw_command command;
command.config.descriptor = &fDescriptor;
command.config.config_index = fIndex;
if (ioctl(fRawFD, B_USB_RAW_COMMAND_GET_CONFIGURATION_DESCRIPTOR, &command,
sizeof(command)) || command.config.status != B_USB_RAW_STATUS_SUCCESS)
memset(&fDescriptor, 0, sizeof(fDescriptor));
fInterfaces = new(std::nothrow) BUSBInterface *[
fDescriptor.number_interfaces];
if (fInterfaces == NULL)
return;
for (uint32 i = 0; i < fDescriptor.number_interfaces; i++) {
fInterfaces[i] = new(std::nothrow) BUSBInterface(this, i,
B_USB_RAW_ACTIVE_ALTERNATE, fRawFD);
}
}
BUSBConfiguration::~BUSBConfiguration()
{
delete[] fConfigurationString;
if (fInterfaces != NULL) {
for (int32 i = 0; i < fDescriptor.number_interfaces; i++)
delete fInterfaces[i];
delete[] fInterfaces;
}
}
uint32
BUSBConfiguration::Index() const
{
return fIndex;
}
const BUSBDevice *
BUSBConfiguration::Device() const
{
return fDevice;
}
const char *
BUSBConfiguration::ConfigurationString() const
{
if (fDescriptor.configuration == 0)
return "";
if (fConfigurationString)
return fConfigurationString;
fConfigurationString = Device()->DecodeStringDescriptor(
fDescriptor.configuration);
if (fConfigurationString == NULL)
return "";
return fConfigurationString;
}
const usb_configuration_descriptor *
BUSBConfiguration::Descriptor() const
{
return &fDescriptor;
}
uint32
BUSBConfiguration::CountInterfaces() const
{
return fDescriptor.number_interfaces;
}
const BUSBInterface *
BUSBConfiguration::InterfaceAt(uint32 index) const
{
if (index >= fDescriptor.number_interfaces || fInterfaces == NULL)
return NULL;
return fInterfaces[index];
}
