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-rw-r--r--usrp/host/lib/fusb_darwin.cc582
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diff --git a/usrp/host/lib/fusb_darwin.cc b/usrp/host/lib/fusb_darwin.cc
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index d2966c1151..0000000000
--- a/usrp/host/lib/fusb_darwin.cc
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@@ -1,582 +0,0 @@
-/* -*- 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define DO_DEBUG 0
-
-#include <usb.h>
-#include "fusb.h"
-#include "fusb_darwin.h"
-#include "darwin_libusb.h"
-#include <iostream>
-
-static const int USB_TIMEOUT = 100; // in milliseconds
-static const UInt8 NUM_QUEUE_ITEMS = 20;
-
-fusb_devhandle_darwin::fusb_devhandle_darwin (usb_dev_handle* udh)
- : fusb_devhandle (udh)
-{
- // that's it
-}
-
-fusb_devhandle_darwin::~fusb_devhandle_darwin ()
-{
- // nop
-}
-
-fusb_ephandle*
-fusb_devhandle_darwin::make_ephandle (int endpoint, bool input_p,
- int block_size, int nblocks)
-{
- return new fusb_ephandle_darwin (this, endpoint, input_p,
- block_size, nblocks);
-}
-
-// ----------------------------------------------------------------
-
-fusb_ephandle_darwin::fusb_ephandle_darwin (fusb_devhandle_darwin* dh,
- int endpoint, bool input_p,
- int block_size, int nblocks)
- : fusb_ephandle (endpoint, input_p, block_size, nblocks),
- d_devhandle (dh), d_pipeRef (0), d_transferType (0),
- d_interfaceRef (0), d_interface (0), d_queue (0),
- d_buffer (0), d_bufLenBytes (0)
-{
- d_bufLenBytes = fusb_sysconfig::max_block_size();
-
-// create circular buffer
- d_buffer = new circular_buffer<char> (NUM_QUEUE_ITEMS * d_bufLenBytes,
- !d_input_p, d_input_p);
-
-// create the queue
- d_queue = new circular_linked_list <s_buffer_ptr> (NUM_QUEUE_ITEMS);
- d_queue->iterate_start ();
- s_node_ptr l_node = d_queue->iterate_next ();
- while (l_node) {
- l_node->both (new s_both<s_buffer_ptr> (l_node, this));
- s_buffer_ptr l_buf = new s_buffer (d_bufLenBytes);
- l_node->object (l_buf);
- l_node = d_queue->iterate_next ();
- l_buf = NULL;
- }
-
- d_readRunning = new gruel::mutex ();
- d_runThreadRunning = new gruel::mutex ();
- d_runBlock = new gruel::condition_variable ();
- d_readBlock = new gruel::condition_variable ();
- d_runBlock_mutex = new gruel::mutex ();
- d_readBlock_mutex = new gruel::mutex ();
-}
-
-fusb_ephandle_darwin::~fusb_ephandle_darwin ()
-{
- stop ();
-
- d_queue->iterate_start ();
- s_node_ptr l_node = d_queue->iterate_next ();
- while (l_node) {
- s_both_ptr l_both = l_node->both ();
- delete l_both;
- l_both = NULL;
- l_node->both (NULL);
- s_buffer_ptr l_buf = l_node->object ();
- delete l_buf;
- l_buf = NULL;
- l_node->object (NULL);
- l_node = d_queue->iterate_next ();
- }
- delete d_queue;
- d_queue = NULL;
- delete d_buffer;
- d_buffer = NULL;
- delete d_readRunning;
- d_readRunning = NULL;
- delete d_runThreadRunning;
- d_runThreadRunning = NULL;
- delete d_runBlock_mutex;
- d_runBlock_mutex = NULL;
- delete d_readBlock_mutex;
- d_readBlock_mutex = NULL;
- delete d_runBlock;
- d_runBlock = NULL;
- delete d_readBlock;
- d_readBlock = NULL;
-}
-
-bool
-fusb_ephandle_darwin::start ()
-{
- UInt8 direction, number, interval;
- UInt16 maxPacketSize;
-
-// reset circular buffer
- d_buffer->reset ();
-
-// reset the queue
- d_queue->num_used (0);
- d_queue->iterate_start ();
- s_node_ptr l_node = d_queue->iterate_next ();
- while (l_node) {
- l_node->both()->set (l_node, this);
- l_node->object()->reset ();
- l_node->set_available ();
- l_node = d_queue->iterate_next ();
- }
-
- d_pipeRef = d_transferType = 0;
-
- usb_dev_handle* dev = d_devhandle->get_usb_dev_handle ();
- if (! dev)
- USB_ERROR_STR (false, -ENXIO, "fusb_ephandle_darwin::start: "
- "null device");
-
- darwin_dev_handle* device = (darwin_dev_handle*) dev->impl_info;
- if (! device)
- USB_ERROR_STR (false, -ENOENT, "fusb_ephandle_darwin::start: "
- "device not initialized");
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::start: dev = " <<
- (void*) dev << ", device = " << (void*) device << std::endl;
- }
-
- d_interfaceRef = device->interface;
- if (! d_interfaceRef)
- USB_ERROR_STR (false, -EACCES, "fusb_ephandle_darwin::start: "
- "interface used without being claimed");
- d_interface = *d_interfaceRef;
-
-// get read or write pipe info (depends on "d_input_p")
-
- if (usb_debug > 3) {
- std::cerr << "fusb_ephandle_darwin::start d_endpoint = " << d_endpoint
- << ", d_input_p = " << (d_input_p ? "TRUE" : "FALSE") << std::endl;
- }
-
- int l_endpoint = (d_input_p ? USB_ENDPOINT_IN : USB_ENDPOINT_OUT);
- int pipeRef = ep_to_pipeRef (device, d_endpoint | l_endpoint);
- if (pipeRef < 0)
- USB_ERROR_STR (false, -EINVAL, "fusb_ephandle_darwin::start "
- " invalid pipeRef.\n");
-
- d_pipeRef = pipeRef;
- d_interface->GetPipeProperties (d_interfaceRef,
- d_pipeRef,
- &direction,
- &number,
- &d_transferType,
- &maxPacketSize,
- &interval);
- if (usb_debug == 3) {
- std::cerr << "fusb_ephandle_darwin::start: " << (d_input_p ? "read" : "write")
- << ": ep = " << d_endpoint << ", pipeRef = " << d_pipeRef << "interface = "
- << d_interface << ", interfaceRef = " << d_interfaceRef
- << ", if_direction = " << direction << ", if_# = " << number
- << ", if_interval = " << interval << ", if_maxPacketSize = "
- << maxPacketSize << std::endl;
- }
-
- // set global start boolean
- d_started = true;
-
- // lock the runBlock mutex, before creating the run thread.
- // this guarantees that we can control execution between these 2 threads
- gruel::scoped_lock l (*d_runBlock_mutex);
-
- // create the run thread, which allows OSX to process I/O separately
- d_runThread = new gruel::thread (run_thread, this);
-
- // wait until the run thread (and possibky read thread) are -really-
- // going; this will unlock the mutex before waiting for a signal ()
- d_runBlock->wait (l);
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::start: " << (d_input_p ? "read" : "write")
- << " started." << std::endl;
- }
-
- return (true);
-}
-
-void
-fusb_ephandle_darwin::run_thread (void* arg)
-{
- fusb_ephandle_darwin* This = static_cast<fusb_ephandle_darwin*>(arg);
-
- // lock the run thread running mutex; if ::stop() is called, it will
- // first abort() the pipe then wait for the run thread to finish,
- // via a lock() on this mutex
- gruel::mutex* l_runThreadRunning = This->d_runThreadRunning;
- gruel::scoped_lock l0 (*l_runThreadRunning);
-
- gruel::mutex* l_readRunning = This->d_readRunning;
- gruel::condition_variable* l_readBlock = This->d_readBlock;
- gruel::mutex* l_readBlock_mutex = This->d_readBlock_mutex;
-
- bool l_input_p = This->d_input_p;
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::run_thread: starting for "
- << (l_input_p ? "read" : "write") << "." << std::endl;
- }
-
- usb_interface_t** l_interfaceRef = This->d_interfaceRef;
- usb_interface_t* l_interface = This->d_interface;
- CFRunLoopSourceRef l_cfSource;
-
-// create async run loop
- l_interface->CreateInterfaceAsyncEventSource (l_interfaceRef, &l_cfSource);
- CFRunLoopAddSource (CFRunLoopGetCurrent (), l_cfSource,
- kCFRunLoopDefaultMode);
-// get run loop reference, to allow other threads to stop
- This->d_CFRunLoopRef = CFRunLoopGetCurrent ();
-
- gruel::thread* l_rwThread = NULL;
-
- if (l_input_p) {
- // lock the readBlock mutex, before creating the read thread.
- // this guarantees that we can control execution between these 2 threads
- gruel::scoped_lock l1 (*l_readBlock_mutex);
- // create the read thread, which just issues all of the starting
- // async read commands, then returns
- l_rwThread = new gruel::thread (read_thread, arg);
- // wait until the the read thread is -really- going; this will
- // unlock the read block mutex before waiting for a signal ()
- l_readBlock->wait (l1);
- }
-
- {
- // now signal the run condition to release and finish ::start().
-
- // lock the runBlock mutex first; this will force waiting until the
- // ->wait() command is issued in ::start()
- gruel::mutex* l_run_block_mutex = This->d_runBlock_mutex;
- gruel::scoped_lock l2 (*l_run_block_mutex);
-
- // now that the lock is in place, signal the parent thread that
- // things are running
- This->d_runBlock->notify_one ();
- }
-
- // run the loop
- CFRunLoopRun ();
-
- if (l_input_p) {
- // wait for read_thread () to finish, if needed
- gruel::scoped_lock l3 (*l_readRunning);
- }
-
- // remove run loop stuff
- CFRunLoopRemoveSource (CFRunLoopGetCurrent (),
- l_cfSource, kCFRunLoopDefaultMode);
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::run_thread: finished for "
- << (l_input_p ? "read" : "write") << "." << std::endl;
- }
-}
-
-void
-fusb_ephandle_darwin::read_thread (void* arg)
-{
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::read_thread: starting." << std::endl;
- }
-
- fusb_ephandle_darwin* This = static_cast<fusb_ephandle_darwin*>(arg);
-
- // before doing anything else, lock the read running mutex. this
- // mutex does flow control between this thread and the run_thread
- gruel::mutex* l_readRunning = This->d_readRunning;
- gruel::scoped_lock l0 (*l_readRunning);
-
- // signal the read condition from run_thread() to continue
-
- // lock the readBlock mutex first; this will force waiting until the
- // ->wait() command is issued in ::run_thread()
- gruel::condition_variable* l_readBlock = This->d_readBlock;
- gruel::mutex* l_read_block_mutex = This->d_readBlock_mutex;
-
- {
- gruel::scoped_lock l1 (*l_read_block_mutex);
-
- // now that the lock is in place, signal the parent thread that
- // things are running here
- l_readBlock->notify_one ();
- }
-
- // queue up all of the available read requests
- s_queue_ptr l_queue = This->d_queue;
- l_queue->iterate_start ();
- s_node_ptr l_node = l_queue->iterate_next ();
- while (l_node) {
- This->read_issue (l_node->both ());
- l_node = l_queue->iterate_next ();
- }
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::read_thread: finished." << std::endl;
- }
-}
-
-void
-fusb_ephandle_darwin::read_issue (s_both_ptr l_both)
-{
- if ((! l_both) || (! d_started)) {
- if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::read_issue: Doing nothing; "
- << "l_both is " << (void*) l_both << "; started is "
- << (d_started ? "TRUE" : "FALSE") << std::endl;
- }
- return;
- }
-
-// set the node and buffer from the input "both"
- s_node_ptr l_node = l_both->node ();
- s_buffer_ptr l_buf = l_node->object ();
- void* v_buffer = (void*) l_buf->buffer ();
-
-// read up to d_bufLenBytes
- size_t bufLen = d_bufLenBytes;
- l_buf->n_used (bufLen);
-
-// setup system call result
- io_return_t result = kIOReturnSuccess;
-
- if (d_transferType == kUSBInterrupt)
-/* This is an interrupt pipe. We can't specify a timeout. */
- result = d_interface->ReadPipeAsync
- (d_interfaceRef, d_pipeRef, v_buffer, bufLen,
- (IOAsyncCallback1) read_completed, (void*) l_both);
- else
- result = d_interface->ReadPipeAsyncTO
- (d_interfaceRef, d_pipeRef, v_buffer, bufLen, 0, USB_TIMEOUT,
- (IOAsyncCallback1) read_completed, (void*) l_both);
-
- if (result != kIOReturnSuccess)
- USB_ERROR_STR_NO_RET (- darwin_to_errno (result),
- "fusb_ephandle_darwin::read_issue "
- "(ReadPipeAsync%s): %s",
- d_transferType == kUSBInterrupt ? "" : "TO",
- darwin_error_str (result));
- else if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::read_issue: Queued " << (void*) l_both
- << " (" << bufLen << " Bytes)" << std::endl;
- }
-}
-
-void
-fusb_ephandle_darwin::read_completed (void* refCon,
- io_return_t result,
- void* io_size)
-{
- size_t l_size = (size_t) io_size;
- s_both_ptr l_both = static_cast<s_both_ptr>(refCon);
- fusb_ephandle_darwin* This = static_cast<fusb_ephandle_darwin*>(l_both->This ());
- s_node_ptr l_node = l_both->node ();
- circular_buffer<char>* l_buffer = This->d_buffer;
- s_buffer_ptr l_buf = l_node->object ();
- size_t l_i_size = l_buf->n_used ();
-
- if (This->d_started && (l_i_size != l_size)) {
- std::cerr << "fusb_ephandle_darwin::read_completed: Expected " << l_i_size
- << " bytes; read " << l_size << "." << std::endl;
- } else if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::read_completed: Read " << (void*) l_both
- << " (" << l_size << " bytes)" << std::endl;
- }
-
-// add this read to the transfer buffer, and check for overflow
-// -> data is being enqueued faster than it can be dequeued
- if (l_buffer->enqueue (l_buf->buffer (), l_size) == -1) {
-// print out that there's an overflow
- fputs ("uO", stderr);
- fflush (stderr);
- }
-
-// set buffer's # data to 0
- l_buf->n_used (0);
-
-// issue another read for this "both"
- This->read_issue (l_both);
-}
-
-int
-fusb_ephandle_darwin::read (void* buffer, int nbytes)
-{
- size_t l_nbytes = (size_t) nbytes;
- d_buffer->dequeue ((char*) buffer, &l_nbytes);
-
- if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::read: request for " << nbytes
- << " bytes, " << l_nbytes << " bytes retrieved." << std::endl;
- }
-
- return ((int) l_nbytes);
-}
-
-int
-fusb_ephandle_darwin::write (const void* buffer, int nbytes)
-{
- size_t l_nbytes = (size_t) nbytes;
-
- if (! d_started) {
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::write: Not yet started." << std::endl;
- }
- return (0);
- }
-
- while (l_nbytes != 0) {
-// find out how much data to copy; limited to "d_bufLenBytes" per node
- size_t t_nbytes = (l_nbytes > d_bufLenBytes) ? d_bufLenBytes : l_nbytes;
-
-// get next available node to write into;
-// blocks internally if none available
- s_node_ptr l_node = d_queue->find_next_available_node ();
-
-// copy the input into the node's buffer
- s_buffer_ptr l_buf = l_node->object ();
- l_buf->buffer ((char*) buffer, t_nbytes);
- void* v_buffer = (void*) l_buf->buffer ();
-
-// setup callback parameter & system call return
- s_both_ptr l_both = l_node->both ();
- io_return_t result = kIOReturnSuccess;
-
- if (d_transferType == kUSBInterrupt)
-/* This is an interrupt pipe ... can't specify a timeout. */
- result = d_interface->WritePipeAsync
- (d_interfaceRef, d_pipeRef, v_buffer, t_nbytes,
- (IOAsyncCallback1) write_completed, (void*) l_both);
- else
- result = d_interface->WritePipeAsyncTO
- (d_interfaceRef, d_pipeRef, v_buffer, t_nbytes, 0, USB_TIMEOUT,
- (IOAsyncCallback1) write_completed, (void*) l_both);
-
- if (result != kIOReturnSuccess)
- USB_ERROR_STR (-1, - darwin_to_errno (result),
- "fusb_ephandle_darwin::write_thread "
- "(WritePipeAsync%s): %s",
- d_transferType == kUSBInterrupt ? "" : "TO",
- darwin_error_str (result));
- else if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::write_thread: Queued " << (void*) l_both
- << " (" << t_nbytes << " Bytes)" << std::endl;
- }
- l_nbytes -= t_nbytes;
- }
-
- return (nbytes);
-}
-
-void
-fusb_ephandle_darwin::write_completed (void* refCon,
- io_return_t result,
- void* io_size)
-{
- s_both_ptr l_both = static_cast<s_both_ptr>(refCon);
- fusb_ephandle_darwin* This = static_cast<fusb_ephandle_darwin*>(l_both->This ());
- size_t l_size = (size_t) io_size;
- s_node_ptr l_node = l_both->node ();
- s_queue_ptr l_queue = This->d_queue;
- s_buffer_ptr l_buf = l_node->object ();
- size_t l_i_size = l_buf->n_used ();
-
- if (This->d_started && (l_i_size != l_size)) {
- std::cerr << "fusb_ephandle_darwin::write_completed: Expected " << l_i_size
- << " bytes written; wrote " << l_size << "." << std::endl;
- } else if (usb_debug > 4) {
- std::cerr << "fusb_ephandle_darwin::write_completed: Wrote " << (void*) l_both
- << " (" << l_size << " Bytes)" << std::endl;
- }
-
-// set buffer's # data to 0
- l_buf->n_used (0);
-// make the node available for reuse
- l_queue->make_node_available (l_node);
-}
-
-void
-fusb_ephandle_darwin::abort ()
-{
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::abort: starting." << std::endl;
- }
-
- io_return_t result = d_interface->AbortPipe (d_interfaceRef, d_pipeRef);
-
- if (result != kIOReturnSuccess)
- USB_ERROR_STR_NO_RET (- darwin_to_errno (result),
- "fusb_ephandle_darwin::abort "
- "(AbortPipe): %s", darwin_error_str (result));
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::abort: finished." << std::endl;
- }
-}
-
-bool
-fusb_ephandle_darwin::stop ()
-{
- if (! d_started)
- return (true);
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::stop: stopping "
- << (d_input_p ? "read" : "write") << "." << std::endl;
- }
-
- d_started = false;
-
-// abort any pending IO transfers
- abort ();
-
-// wait for write transfer to finish
- wait_for_completion ();
-
-// tell IO buffer to abort any waiting conditions
- d_buffer->abort ();
-
-// stop the run loop
- CFRunLoopStop (d_CFRunLoopRef);
-
-// wait for the runThread to stop
- gruel::scoped_lock l (*d_runThreadRunning);
-
- if (usb_debug) {
- std::cerr << "fusb_ephandle_darwin::stop: " << (d_input_p ? "read" : "write")
- << " stopped." << std::endl;
- }
-
- return (true);
-}
-
-void
-fusb_ephandle_darwin::wait_for_completion ()
-{
- if (d_queue)
- while (d_queue->in_use ())
- usleep (1000);
-}