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/* -*- c++ -*- */
/*
* Copyright 2006 Free Software Foundation, Inc.
*
* This file is part of GNU Radio.
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
/*
* The following code was taken from LIBUSB verion 0.1.10a,
* and makes the fusb_darwin codes do-able in the current GR
* programming framework. Parts and pieces were taken from
* usbi.h, darwin.c, and error.h .
*
* LIBUSB version 0.1.10a is covered by the LGPL, version 2;
* These codes are used with permission from:
* (c) 2000-2003 Johannes Erdfelt <johannes@erdfelt.com>
* (c) 2002-2005 Nathan Hjelm <hjelmn@users.sourceforge.net>
* All rights reserved.
*/
#ifndef __DARWIN_LIBUSB_H__
#define __DARWIN_LIBUSB_H__
#include <IOKit/IOCFBundle.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/usb/IOUSBLib.h>
#include <IOKit/IOKitLib.h>
extern "C" {
static char *
darwin_error_str (int result)
{
switch (result) {
case kIOReturnSuccess:
return "no error";
case kIOReturnNotOpen:
return "device not opened for exclusive access";
case kIOReturnNoDevice:
return "no connection to an IOService";
case kIOUSBNoAsyncPortErr:
return "no asyc port has been opened for interface";
case kIOReturnExclusiveAccess:
return "another process has device opened for exclusive access";
case kIOUSBPipeStalled:
return "pipe is stalled";
case kIOReturnError:
return "could not establish a connection to Darin kernel";
case kIOReturnBadArgument:
return "invalid argument";
default:
return "unknown error";
}
}
/* not a valid errorno outside darwin.c */
#define LUSBDARWINSTALL (ELAST+1)
static int
darwin_to_errno (int result)
{
switch (result) {
case kIOReturnSuccess:
return 0;
case kIOReturnNotOpen:
return EBADF;
case kIOReturnNoDevice:
case kIOUSBNoAsyncPortErr:
return ENXIO;
case kIOReturnExclusiveAccess:
return EBUSY;
case kIOUSBPipeStalled:
return LUSBDARWINSTALL;
case kIOReturnBadArgument:
return EINVAL;
case kIOReturnError:
default:
return 1;
}
}
typedef enum {
USB_ERROR_TYPE_NONE = 0,
USB_ERROR_TYPE_STRING,
USB_ERROR_TYPE_ERRNO,
} usb_error_type_t;
extern char usb_error_str[1024];
extern int usb_error_errno;
extern usb_error_type_t usb_error_type;
#define USB_ERROR(r, x) \
do { \
usb_error_type = USB_ERROR_TYPE_ERRNO; \
usb_error_errno = x; \
return r; \
} while (0)
#define USB_ERROR_STR(r, x, format, args...) \
do { \
usb_error_type = USB_ERROR_TYPE_STRING; \
snprintf(usb_error_str, sizeof(usb_error_str) - 1, format, ## args); \
if (usb_debug) \
fprintf(stderr, "USB error: %s\n", usb_error_str); \
return r; \
} while (0)
#define USB_ERROR_STR_ORIG(x, format, args...) \
do { \
usb_error_type = USB_ERROR_TYPE_STRING; \
snprintf(usb_error_str, sizeof(usb_error_str) - 1, format, ## args); \
if (usb_debug) \
fprintf(stderr, "USB error: %s\n", usb_error_str); \
return x; \
} while (0)
#define USB_ERROR_STR_NO_RET(x, format, args...) \
do { \
usb_error_type = USB_ERROR_TYPE_STRING; \
snprintf(usb_error_str, sizeof(usb_error_str) - 1, format, ## args); \
if (usb_debug) \
fprintf(stderr, "USB error: %s\n", usb_error_str); \
} while (0)
/* simple function that figures out what pipeRef is associated with an endpoint */
static int ep_to_pipeRef (darwin_dev_handle *device, int ep)
{
io_return_t ret;
UInt8 numep, direction, number;
UInt8 dont_care1, dont_care3;
UInt16 dont_care2;
int i;
if (usb_debug > 3)
fprintf(stderr, "Converting ep address to pipeRef.\n");
/* retrieve the total number of endpoints on this interface */
ret = (*(device->interface))->GetNumEndpoints(device->interface, &numep);
if ( ret ) {
if ( usb_debug > 3 )
fprintf ( stderr, "ep_to_pipeRef: interface is %p\n", device->interface );
USB_ERROR_STR_ORIG ( -ret, "ep_to_pipeRef: can't get number of endpoints for interface" );
}
/* iterate through the pipeRefs until we find the correct one */
for (i = 1 ; i <= numep ; i++) {
ret = (*(device->interface))->GetPipeProperties(device->interface, i, &direction, &number,
&dont_care1, &dont_care2, &dont_care3);
if (ret != kIOReturnSuccess) {
fprintf (stderr, "ep_to_pipeRef: an error occurred getting pipe information on pipe %d\n",
i );
USB_ERROR_STR_ORIG (-darwin_to_errno(ret), "ep_to_pipeRef(GetPipeProperties): %s", darwin_error_str(ret));
}
if (usb_debug > 3)
fprintf (stderr, "ep_to_pipeRef: Pipe %i: DIR: %i number: %i\n", i, direction, number);
/* calculate the endpoint of the pipe and check it versus the requested endpoint */
if ( ((direction << 7 & USB_ENDPOINT_DIR_MASK) | (number & USB_ENDPOINT_ADDRESS_MASK)) == ep ) {
if (usb_debug > 3)
fprintf(stderr, "ep_to_pipeRef: pipeRef for ep address 0x%02x found: 0x%02x\n", ep, i);
return i;
}
}
if (usb_debug > 3)
fprintf(stderr, "ep_to_pipeRef: No pipeRef found with endpoint address 0x%02x.\n", ep);
/* none of the found pipes match the requested endpoint */
return -1;
}
}
#endif /* __DARWIN_LIBUSB_H__ */
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