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/*******************************************************************************
Copyright(c) 2011 Gerry Rozema. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*******************************************************************************/
#include "indiusbdevice.h"
#include <string.h>
INDI::USBDevice::USBDevice()
{
dev=NULL;
usb_handle=NULL;
OutputEndpoint=0;
InputEndpoint=0;
usb_init();
usb_find_busses();
usb_find_devices();
}
INDI::USBDevice::~USBDevice()
{
}
struct usb_device * INDI::USBDevice::FindDevice(int vendor, int product, int searchindex)
{
struct usb_device *dev;
struct usb_bus *usb_bus;
int index=0;
for(usb_bus=usb_busses; usb_bus; usb_bus=usb_bus->next) {
for(dev=usb_bus->devices; dev; dev=dev->next) {
if(dev->descriptor.idVendor==vendor) {
if(dev->descriptor.idProduct==product) {
if(index==searchindex) {
fprintf(stderr,"Device has %d configurations\n",dev->descriptor.bNumConfigurations);
return dev;
}
else index++;
}
}
}
}
return NULL;
}
int INDI::USBDevice::Open()
{
if(dev==NULL) return -1;
usb_handle=usb_open(dev);
if(usb_handle != NULL) {
//printf("Opened ok\n");
return FindEndpoints();
//return 0;
}
return -1;
}
int INDI::USBDevice::FindEndpoints()
{
int rc=0;
struct usb_interface_descriptor *intf;
intf=&dev->config[0].interface[0].altsetting[0];
for(int i=0; i<intf->bNumEndpoints; i++) {
fprintf(stderr,"%04x %04x\n",
intf->endpoint[i].bEndpointAddress,
intf->endpoint[i].bmAttributes
);
int dir;
int addr;
addr=intf->endpoint[i].bEndpointAddress;
addr = addr & (USB_ENDPOINT_DIR_MASK^0xffff);
//printf("%02x ",addr);
int attr;
int tp;
attr=intf->endpoint[i].bmAttributes;
tp=attr&USB_ENDPOINT_TYPE_MASK;
//if(tp==USB_ENDPOINT_TYPE_BULK) printf("Bulk ");
//if(tp==USB_ENDPOINT_TYPE_INTERRUPT) printf("Interrupt ");
dir=intf->endpoint[i].bEndpointAddress;
dir=dir&USB_ENDPOINT_DIR_MASK;
if(dir==USB_ENDPOINT_IN) {
//printf("Input ");
fprintf(stderr,"Got an input endpoint\n");
InputEndpoint=addr;
InputType=tp;
}
if(dir==USB_ENDPOINT_OUT) {
//printf("Output ");
fprintf(stderr,"got an output endpoint\n");
OutputEndpoint=addr;
OutputType=tp;
}
//printf("\n");
}
//printf("claim interface returns %d\n",rc);
return rc;
}
int INDI::USBDevice::ReadInterrupt(char *buf,int c,int timeout)
{
int rc;
rc=usb_interrupt_read(usb_handle,InputEndpoint,buf,c,timeout);
//rc=usb_bulk_read(usb_handle,InputEndpoint,buf,c,timeout);
return rc;
}
int INDI::USBDevice::WriteInterrupt(char *buf,int c,int timeout)
{
int rc;
//printf("Writing %02x to endpoint %d\n",buf[0],OutputEndpoint);
rc=usb_interrupt_write(usb_handle,OutputEndpoint,buf,c,timeout);
return rc;
}
int INDI::USBDevice::ReadBulk(char *buf,int nbytes,int timeout)
{
int rc;
//rc=usb_interrupt_read(usb_handle,InputEndpoint,buf,c,timeout);
rc=usb_bulk_read(usb_handle,InputEndpoint,buf,nbytes,timeout);
return rc;
}
int INDI::USBDevice::WriteBulk(char *buf,int nbytes,int timeout)
{
int rc;
//printf("Writing %02x to endpoint %d\n",buf[0],OutputEndpoint);
//rc=usb_interrupt_write(usb_handle,OutputEndpoint,buf,c,timeout);
rc=usb_bulk_write(usb_handle,OutputEndpoint,buf,nbytes,timeout);
return rc;
}
int INDI::USBDevice::ControlMessage()
{
char buf[3];
int rc;
buf[0]=0;
buf[1]=0;
buf[2]=0;
rc=usb_control_msg(usb_handle,0xc2&USB_ENDPOINT_IN, 0x12,0,0,buf,3,1000);
fprintf(stderr,"UsbControlMessage returns %d\n",rc);
return 0;
}
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