separate os.h interface from implementation (mac)
This commit is contained in:
Lysann Schlegel
281
src/os_mac/os_mac.m
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281
src/os_mac/os_mac.m
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/*
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* wiiuse
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*
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* Written By:
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* Michael Laforest < para >
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* Email: < thepara (--AT--) g m a i l [--DOT--] com >
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*
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* Copyright 2006-2007
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*
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* This file is part of wiiuse.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* $Header$
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*
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*/
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/**
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* @file
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* @brief Handles device I/O for Mac OS X.
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*/
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#ifdef __APPLE__
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#import "os_mac.h"
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#import "../events.h"
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#import <IOBluetooth/IOBluetoothUtilities.h>
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#import <IOBluetooth/objc/IOBluetoothDevice.h>
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#import <IOBluetooth/objc/IOBluetoothHostController.h>
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#import <IOBluetooth/objc/IOBluetoothDeviceInquiry.h>
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#import <IOBluetooth/objc/IOBluetoothL2CAPChannel.h>
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@implementation WiiuseWiimote
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#pragma mark init, dealloc
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- (id) initWithPtr: (wiimote*) wm_ device:(IOBluetoothDevice *)device_ {
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self = [super init];
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if(self) {
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wm = wm_;
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device = device_;
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controlChannel = nil;
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interruptChannel = nil;
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disconnectNotification = nil;
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receivedData = [[NSMutableArray alloc] initWithCapacity: 2];
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receivedDataLock = [[NSLock alloc] init];
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}
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return self;
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}
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- (void) dealloc {
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wm = NULL;
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[interruptChannel release];
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[controlChannel release];
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[device release];
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[disconnectNotification unregister];
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[disconnectNotification release];
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[receivedData release];
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[super dealloc];
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}
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#pragma mark connect, disconnect
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- (BOOL) connectChannel: (IOBluetoothL2CAPChannel**) pChannel PSM: (BluetoothL2CAPPSM) psm {
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if ([device openL2CAPChannelSync:pChannel withPSM:psm delegate:self] != kIOReturnSuccess) {
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WIIUSE_ERROR("Unable to open L2CAP channel [id %i].", wm->unid);
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*pChannel = nil;
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return NO;
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} else {
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[*pChannel retain];
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return YES;
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}
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}
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- (IOReturn) connect {
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if(!device) {
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WIIUSE_ERROR("Missing device.");
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return kIOReturnBadArgument;
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}
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// open channels
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if(![self connectChannel:&controlChannel PSM:WM_OUTPUT_CHANNEL]) {
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[self disconnect];
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return kIOReturnNotOpen;
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} else if(![self connectChannel:&interruptChannel PSM:WM_INPUT_CHANNEL]) {
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[self disconnect];
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return kIOReturnNotOpen;
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}
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// register for device disconnection
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disconnectNotification = [device registerForDisconnectNotification:self selector:@selector(disconnected:fromDevice:)];
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if(!disconnectNotification) {
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WIIUSE_ERROR("Unable to register disconnection handler [id %i].", wm->unid);
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[self disconnect];
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return kIOReturnNotOpen;
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}
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return kIOReturnSuccess;
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}
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- (void) disconnectChannel: (IOBluetoothL2CAPChannel**) pChannel {
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if(!pChannel) return;
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if([*pChannel closeChannel] != kIOReturnSuccess)
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WIIUSE_ERROR("Unable to close channel [id %i].", wm ? wm->unid : -1);
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[*pChannel release];
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*pChannel = nil;
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}
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- (void) disconnect {
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// channels
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[self disconnectChannel:&interruptChannel];
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[self disconnectChannel:&controlChannel];
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// device
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if([device closeConnection] != kIOReturnSuccess)
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WIIUSE_ERROR("Unable to close the device connection [id %i].", wm ? wm->unid : -1);
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[device release];
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device = nil;
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}
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- (void) disconnected:(IOBluetoothUserNotification*) notification fromDevice:(IOBluetoothDevice*) device {
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wiiuse_disconnected(wm);
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}
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#pragma mark read, write
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- (int) checkForAvailableData {
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unsigned int length = 0;
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[receivedDataLock lock];
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if([receivedData count]) {
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// pop first item from queue
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NSData* firstData = [receivedData objectAtIndex:0];
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[receivedData removeObjectAtIndex:0];
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byte* data = (byte*) [firstData bytes];
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length = [firstData length];
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// forward event data to C struct
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memcpy(wm->event_buf, data, sizeof(wm->event_buf));
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// clear local buffer
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[firstData release];
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}
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[receivedDataLock unlock];
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return length;
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}
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- (void) waitForInclomingData: (NSTimeInterval) duration {
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NSDate* timeoutDate = [NSDate dateWithTimeIntervalSinceNow: duration];
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NSRunLoop *theRL = [NSRunLoop currentRunLoop];
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while (true) {
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // This is used for fast release of NSDate, otherwise it leaks
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if(![theRL runMode:NSDefaultRunLoopMode beforeDate:timeoutDate]) {
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WIIUSE_ERROR("Could not start run loop while waiting for read [id %i].", wm->unid);
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break;
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}
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[receivedDataLock lock];
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NSUInteger count = [receivedData count];
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[receivedDataLock unlock];
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if(count) {
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// received some data, stop waiting
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break;
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}
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if([timeoutDate isLessThanOrEqualTo:[NSDate date]]) {
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// timeout
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break;
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}
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[pool drain];
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}
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}
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- (int) read {
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// is there already some data to read?
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int result = [self checkForAvailableData];
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if(!result) {
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// wait a short amount of time, until data becomes available
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[self waitForInclomingData:1];
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// check again
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result = [self checkForAvailableData];
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}
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return result;
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}
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- (int) writeBuffer: (byte*) buffer length: (NSUInteger) length {
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if(controlChannel == nil) {
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WIIUSE_ERROR("Attempted to write to nil control channel [id %i].", wm->unid);
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return 0;
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}
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IOReturn error = [controlChannel writeSync:buffer length:length];
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if (error != kIOReturnSuccess) {
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WIIUSE_ERROR("Error writing to control channel [id %i].", wm->unid);
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WIIUSE_DEBUG("Attempting to reopen the control channel [id %i].", wm->unid);
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[self disconnectChannel:&controlChannel];
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[self connectChannel:&controlChannel PSM:WM_OUTPUT_CHANNEL];
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if(!controlChannel) {
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WIIUSE_ERROR("Error reopening the control channel [id %i].", wm->unid);
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[self disconnect];
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} else {
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WIIUSE_DEBUG("Attempting to write again to the control channel [id %i].", wm->unid);
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error = [controlChannel writeSync:buffer length:length];
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if (error != kIOReturnSuccess)
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WIIUSE_ERROR("Unable to write again to the control channel [id %i].", wm->unid);
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}
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}
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return (error == kIOReturnSuccess) ? length : 0;
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}
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#pragma mark IOBluetoothL2CAPChannelDelegate
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- (void) l2capChannelData:(IOBluetoothL2CAPChannel*)channel data:(void*)data_ length:(NSUInteger)length {
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byte* data = (byte*) data_;
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// This is done in case the output channel woke up this handler
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if(!data || ([channel PSM] == WM_OUTPUT_CHANNEL)) {
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return;
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}
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// log the received data
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#ifdef WITH_WIIUSE_DEBUG
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{
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printf("[DEBUG] (id %i) RECV: (%x) ", wm->unid, data[0]);
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int x;
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for (x = 1; x < length; ++x)
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printf("%.2x ", data[x]);
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printf("\n");
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}
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#endif
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/*
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* This is called if we are receiving data before completing
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* the handshaking, hence before calling wiiuse_poll
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*/
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if(WIIMOTE_IS_SET(wm, WIIMOTE_STATE_HANDSHAKE)) {
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propagate_event(wm, data[1], data+2);
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return;
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}
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// copy the data into the buffer
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[receivedDataLock lock];
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[receivedData addObject: [[NSData alloc] initWithBytes:data length:length]];
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[receivedDataLock unlock];
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}
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@end
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#endif // __APPLE__
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