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/* -*- c++ -*- */
/*
* Copyright 2006,2009,2010 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.
*/
#ifndef _FUSB_DARWIN_H_
#define _FUSB_DARWIN_H_
#include <usb.h>
#include "fusb.h"
#include <IOKit/IOCFBundle.h>
#include <IOKit/IOCFPlugIn.h>
#include <IOKit/usb/IOUSBLib.h>
#include <IOKit/IOKitLib.h>
#include "circular_linked_list.h"
#include "circular_buffer.h"
// for MacOS X 10.4.[0-3]
#define usb_interface_t IOUSBInterfaceInterface220
#define InterfaceInterfaceID kIOUSBInterfaceInterfaceID220
#define InterfaceVersion 220
// for MacOS X 10.3.[0-9] and 10.4.[0-3]
#define usb_device_t IOUSBDeviceInterface197
#define DeviceInterfaceID kIOUSBDeviceInterfaceID197
#define DeviceVersion 197
extern "C" {
typedef struct usb_dev_handle {
int fd;
struct usb_bus *bus;
struct usb_device *device;
int config;
int interface;
int altsetting;
/* Added by RMT so implementations can store other per-open-device data */
void *impl_info;
} usb_dev_handle;
/* Darwin/OS X impl does not use fd field, instead it uses this */
typedef struct darwin_dev_handle {
usb_device_t** device;
usb_interface_t** interface;
int open;
} darwin_dev_handle;
typedef IOReturn io_return_t;
typedef IOCFPlugInInterface *io_cf_plugin_ref_t;
static int ep_to_pipeRef (darwin_dev_handle* device, int ep);
extern int usb_debug;
}
class s_buffer
{
private:
char* d_buffer;
size_t d_n_used, d_n_alloc;
public:
inline s_buffer (size_t n_alloc = 0) {
d_n_used = 0;
d_n_alloc = n_alloc;
if (n_alloc) {
d_buffer = (char*) new char [n_alloc];
} else {
d_buffer = 0;
}
};
inline ~s_buffer () {
if (d_n_alloc) {
delete [] d_buffer;
}
};
inline size_t n_used () { return (d_n_used); };
inline void n_used (size_t bufLen) {
d_n_used = (bufLen > d_n_alloc) ? d_n_alloc : bufLen; };
inline size_t n_alloc () { return (d_n_alloc); };
void buffer (char* l_buffer, size_t bufLen) {
if (bufLen > d_n_alloc) {
std::cerr << "s_buffer::set: Copying only allocated bytes." << std::endl;
bufLen = d_n_alloc;
}
if (!l_buffer) {
std::cerr << "s_buffer::set: NULL buffer." << std::endl;
return;
}
bcopy (l_buffer, d_buffer, bufLen);
d_n_used = bufLen;
};
inline char* buffer () { return (d_buffer); };
inline void reset () {
bzero (d_buffer, d_n_alloc);
d_n_used = 0;
};
};
typedef s_buffer* s_buffer_ptr;
typedef s_node<s_buffer_ptr>* s_node_ptr;
typedef circular_linked_list<s_buffer_ptr>* s_queue_ptr;
typedef s_both<s_buffer_ptr>* s_both_ptr;
/*!
* \brief darwin implementation of fusb_devhandle
*
* This is currently identical to the generic implementation
* and is intended as a starting point for whatever magic is
* required to make usb fly.
*/
class fusb_devhandle_darwin : public fusb_devhandle
{
public:
// CREATORS
fusb_devhandle_darwin (usb_dev_handle* udh);
virtual ~fusb_devhandle_darwin ();
// MANIPULATORS
virtual fusb_ephandle* make_ephandle (int endpoint, bool input_p,
int block_size = 0, int nblocks = 0);
};
/*!
* \brief darwin implementation of fusb_ephandle
*
* This is currently identical to the generic implementation
* and is intended as a starting point for whatever magic is
* required to make usb fly.
*/
class fusb_ephandle_darwin : public fusb_ephandle
{
private:
fusb_devhandle_darwin* d_devhandle;
gruel::thread* d_runThread;
gruel::mutex* d_runThreadRunning;
CFRunLoopRef d_CFRunLoopRef;
static void write_completed (void* ret_io_size,
io_return_t result,
void* io_size);
static void read_completed (void* ret_io_size,
io_return_t result,
void* io_size);
static void run_thread (void* arg);
static void read_thread (void* arg);
void read_issue (s_both_ptr l_both);
public:
// variables, for now
UInt8 d_pipeRef, d_transferType;
usb_interface_t** d_interfaceRef;
usb_interface_t* d_interface;
s_queue_ptr d_queue;
circular_buffer<char>* d_buffer;
size_t d_bufLenBytes;
gruel::mutex* d_readRunning;
gruel::mutex* d_runBlock_mutex;
gruel::mutex* d_readBlock_mutex;
gruel::condition_variable* d_runBlock;
gruel::condition_variable* d_readBlock;
// CREATORS
fusb_ephandle_darwin (fusb_devhandle_darwin *dh, int endpoint, bool input_p,
int block_size = 0, int nblocks = 0);
virtual ~fusb_ephandle_darwin ();
// MANIPULATORS
virtual bool start (); //!< begin streaming i/o
virtual bool stop (); //!< stop streaming i/o
/*!
* \returns \p nbytes if write was successfully enqueued, else -1.
* Will block if no free buffers available.
*/
virtual int write (const void* buffer, int nbytes);
/*!
* \returns number of bytes read or -1 if error.
* number of bytes read will be <= nbytes.
* Will block if no input available.
*/
virtual int read (void* buffer, int nbytes);
/*
* abort any pending IO transfers
*/
void abort ();
/*
* block until all outstanding writes have completed
*/
virtual void wait_for_completion ();
};
#endif /* _FUSB_DARWIN_H_ */
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