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/*
* This file is part of the DSLogic-gui project.
* DSLogic-gui is based on PulseView.
*
* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@dreamsourcelab.com>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "devicemanager.h"
#include "sigsession.h"
#include <cassert>
#include <sstream>
#include <stdexcept>
#include <string>
#include <QtGui/QApplication>
#include <QObject>
#include <QDebug>
#include <QDir>
#include <libsigrok4DSLogic/libsigrok.h>
using namespace std;
char config_path[256];
namespace pv {
DeviceManager::DeviceManager(struct sr_context *sr_ctx) :
_sr_ctx(sr_ctx)
{
init_drivers();
scan_all_drivers();
}
DeviceManager::~DeviceManager()
{
release_devices();
}
const std::list<sr_dev_inst*>& DeviceManager::devices() const
{
return _devices;
}
int DeviceManager::use_device(sr_dev_inst *sdi, SigSession *owner)
{
assert(sdi);
assert(owner);
if (sr_dev_open(sdi) != SR_OK)
return SR_ERR;
_used_devices[sdi] = owner;
return SR_OK;
}
void DeviceManager::release_device(sr_dev_inst *sdi)
{
assert(sdi);
// Notify the owner, and removed the device from the used device list
_used_devices[sdi]->release_device(sdi);
_used_devices.erase(sdi);
sr_dev_close(sdi);
}
list<sr_dev_inst*> DeviceManager::driver_scan(
struct sr_dev_driver *const driver, GSList *const drvopts)
{
list<sr_dev_inst*> driver_devices;
assert(driver);
// Remove any device instances from this driver from the device
// list. They will not be valid after the scan.
list<sr_dev_inst*>::iterator i = _devices.begin();
while (i != _devices.end()) {
if ((*i)->driver == driver)
i = _devices.erase(i);
else
i++;
}
// Release this driver and all it's attached devices
release_driver(driver);
// Check If DSLogic driver
if (strcmp(driver->name, "DSLogic") == 0) {
QDir dir(QApplication::applicationDirPath());
if (!dir.cd("res"))
return driver_devices;
std::string str = dir.absolutePath().toStdString() + "/";
strcpy(config_path, str.c_str());
}
// Do the scan
GSList *const devices = sr_driver_scan(driver, drvopts);
for (GSList *l = devices; l; l = l->next)
driver_devices.push_back((sr_dev_inst*)l->data);
g_slist_free(devices);
driver_devices.sort(compare_devices);
// Add the scanned devices to the main list
_devices.insert(_devices.end(), driver_devices.begin(),
driver_devices.end());
_devices.sort(compare_devices);
return driver_devices;
}
string DeviceManager::format_device_title(const sr_dev_inst *const sdi)
{
ostringstream s;
assert(sdi);
if (sdi->vendor && sdi->vendor[0]) {
s << sdi->vendor;
if ((sdi->model && sdi->model[0]) ||
(sdi->version && sdi->version[0]))
s << ' ';
}
if (sdi->model && sdi->model[0]) {
s << sdi->model;
if (sdi->version && sdi->version[0])
s << ' ';
}
if (sdi->version && sdi->version[0])
s << sdi->version;
return s.str();
}
void DeviceManager::init_drivers()
{
// Initialise all libsigrok drivers
sr_dev_driver **const drivers = sr_driver_list();
for (sr_dev_driver **driver = drivers; *driver; driver++) {
if (sr_driver_init(_sr_ctx, *driver) != SR_OK) {
throw runtime_error(
string("Failed to initialize driver ") +
string((*driver)->name));
}
}
}
void DeviceManager::release_devices()
{
// Release all the used devices
for (map<sr_dev_inst*, SigSession*>::iterator i = _used_devices.begin();
i != _used_devices.end();)
release_device((*i++).first);
_used_devices.clear();
// Clear all the drivers
sr_dev_driver **const drivers = sr_driver_list();
for (sr_dev_driver **driver = drivers; *driver; driver++)
sr_dev_clear(*driver);
}
void DeviceManager::scan_all_drivers()
{
// Scan all drivers for all devices.
struct sr_dev_driver **const drivers = sr_driver_list();
for (struct sr_dev_driver **driver = drivers; *driver; driver++)
driver_scan(*driver);
}
void DeviceManager::release_driver(struct sr_dev_driver *const driver)
{
assert(driver);
// map<sr_dev_inst*, SigSession*>::iterator i = _used_devices.begin();
// while(i != _used_devices.end()) {
// if((*i).first->driver == driver)
// {
// // Notify the current owner of the device
// (*i).second->release_device((*i).first);
// // Close the device instance
// sr_dev_close((*i).first);
// // Remove it from the used device list
// i = _used_devices.erase(i);
// } else {
// i++;
// }
// }
for (map<sr_dev_inst*, SigSession*>::iterator i = _used_devices.begin();
i != _used_devices.end();)
if((*i).first->driver == driver)
{
// Notify the current owner of the device
(*i).second->release_device((*i).first);
// Close the device instance
sr_dev_close((*i).first);
// Remove it from the used device list
_used_devices.erase(i++);
} else {
i++;
}
// Clear all the old device instances from this driver
sr_dev_clear(driver);
}
bool DeviceManager::compare_devices(const sr_dev_inst *const a,
const sr_dev_inst *const b)
{
return format_device_title(a).compare(format_device_title(b)) < 0;
}
int DeviceManager::test_device(sr_dev_inst *sdi)
{
assert(sdi);
return sdi->driver->dev_test(sdi);
}
} // namespace pv
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