10529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// Copyright 2014 The Chromium Authors. All rights reserved. 20529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 30529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// found in the LICENSE file. 40529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 50529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include "ui/events/ozone/evdev/libgestures_glue/event_reader_libevdev_cros.h" 60529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 70529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include <errno.h> 80529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include <libevdev/libevdev.h> 90529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include <linux/input.h> 100529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 110529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include "base/message_loop/message_loop.h" 120529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include "base/strings/string_util.h" 130529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch#include "base/strings/stringprintf.h" 140529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 150529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochnamespace ui { 160529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 170529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochnamespace { 180529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 190529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochstd::string FormatLog(const char* fmt, va_list args) { 200529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch std::string msg = base::StringPrintV(fmt, args); 210529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (!msg.empty() && msg[msg.size() - 1] == '\n') 220529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch msg.erase(msg.end() - 1, msg.end()); 230529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch return msg; 240529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 250529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 260529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} // namespace 270529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 280529e5d033099cbfc42635f6f6183833b09dff6eBen MurdochEventReaderLibevdevCros::EventReaderLibevdevCros(int fd, 290529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const base::FilePath& path, 300529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch scoped_ptr<Delegate> delegate) 311320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci : EventConverterEvdev(fd, path), delegate_(delegate.Pass()) { 320529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch memset(&evdev_, 0, sizeof(evdev_)); 330529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.log = OnLogMessage; 340529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.log_udata = this; 350529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.syn_report = OnSynReport; 360529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.syn_report_udata = this; 370529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.fd = fd; 380529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 390529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch memset(&evstate_, 0, sizeof(evstate_)); 400529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch evdev_.evstate = &evstate_; 410529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch Event_Init(&evdev_); 420529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 430529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch Event_Open(&evdev_); 440529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 450529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch delegate_->OnLibEvdevCrosOpen(&evdev_, &evstate_); 460529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 470529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 480529e5d033099cbfc42635f6f6183833b09dff6eBen MurdochEventReaderLibevdevCros::~EventReaderLibevdevCros() { 490529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch Stop(); 500529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch EvdevClose(&evdev_); 510529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 520529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 530529e5d033099cbfc42635f6f6183833b09dff6eBen MurdochEventReaderLibevdevCros::Delegate::~Delegate() {} 540529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 550529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochvoid EventReaderLibevdevCros::OnFileCanReadWithoutBlocking(int fd) { 560529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (EvdevRead(&evdev_)) { 570529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (errno == EINTR || errno == EAGAIN) 580529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch return; 590529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (errno != ENODEV) 600529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch PLOG(ERROR) << "error reading device " << path_.value(); 610529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch Stop(); 620529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch return; 630529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch } 640529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 650529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 660529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// static 670529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochvoid EventReaderLibevdevCros::OnSynReport(void* data, 680529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch EventStateRec* evstate, 690529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch struct timeval* tv) { 700529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch EventReaderLibevdevCros* reader = static_cast<EventReaderLibevdevCros*>(data); 710529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch reader->delegate_->OnLibEvdevCrosEvent(&reader->evdev_, evstate, *tv); 720529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 730529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 740529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// static 750529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochvoid EventReaderLibevdevCros::OnLogMessage(void* data, 760529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch int level, 770529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch const char* fmt, 780529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch ...) { 790529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch va_list args; 800529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch va_start(args, fmt); 810529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch if (level >= LOGLEVEL_ERROR) 820529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch LOG(ERROR) << "libevdev: " << FormatLog(fmt, args); 830529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch else if (level >= LOGLEVEL_WARNING) 840529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch LOG(WARNING) << "libevdev: " << FormatLog(fmt, args); 850529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch else 860529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch VLOG(3) << "libevdev: " << FormatLog(fmt, args); 870529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch va_end(args); 880529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} 890529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 900529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch} // namespace ui 91