dolphin/Externals/WiiUse/Src/io_osx.m

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/*
* wiiuse
*
* Written By:
* Michael Laforest < para >
* Email: < thepara (--AT--) g m a i l [--DOT--] com >
*
* Copyright 2006-2007
*
* This file is part of wiiuse.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* $Header$
*
*/
/**
* @file
* @brief Handles device I/O for OS X.
*/
#import <CoreServices/CoreServices.h>
extern OSErr UpdateSystemActivity(UInt8 activity);
#define BLUETOOTH_VERSION_USE_CURRENT
#import <IOBluetooth/objc/IOBluetoothDevice.h>
#import <IOBluetooth/objc/IOBluetoothDeviceInquiry.h>
#import <IOBluetooth/objc/IOBluetoothHostController.h>
#import <IOBluetooth/objc/IOBluetoothL2CAPChannel.h>
#include "definitions.h"
#include "wiiuse_internal.h"
static int wiiuse_connect_single(struct wiimote_t *wm, char *address);
IOBluetoothDevice *btd;
IOBluetoothL2CAPChannel *ichan;
IOBluetoothL2CAPChannel *cchan;
#define QUEUE_SIZE 64
volatile struct buffer {
char data[MAX_PAYLOAD];
int len;
} queue[QUEUE_SIZE];
volatile int reader, writer, outstanding, watermark;
@interface SearchBT: NSObject {
@public
unsigned int maxDevices;
}
@end
@implementation SearchBT
- (void) deviceInquiryComplete: (IOBluetoothDeviceInquiry *) sender
error: (IOReturn) error
aborted: (BOOL) aborted
{
CFRunLoopStop(CFRunLoopGetCurrent());
}
- (void) deviceInquiryDeviceFound: (IOBluetoothDeviceInquiry *) sender
device: (IOBluetoothDevice *) device
{
WIIUSE_INFO("Discovered bluetooth device at %s: %s",
[[device getAddressString] UTF8String],
[[device getName] UTF8String]);
if ([[sender foundDevices] count] == maxDevices)
[sender stop];
}
@end
@interface ConnectBT: NSObject {}
@end
@implementation ConnectBT
- (void) l2capChannelData: (IOBluetoothL2CAPChannel *) l2capChannel
data: (byte *) data
length: (NSUInteger) length
{
// IOBluetoothDevice *device = [l2capChannel getDevice];
if (length > MAX_PAYLOAD) {
WIIUSE_WARNING("Dropping wiimote packet - too large");
return;
}
if (queue[writer].len != 0) {
WIIUSE_WARNING("Dropping wiimote packet - queue full");
return;
}
memcpy(queue[writer].data, data, length);
queue[writer].len = length;
writer++;
outstanding++;
if (writer == QUEUE_SIZE)
writer = 0;
if (outstanding > watermark) {
watermark = outstanding;
WIIUSE_WARNING("New wiimote queue watermark %d", watermark);
}
CFRunLoopStop(CFRunLoopGetCurrent());
UpdateSystemActivity(1);
}
- (void) l2capChannelClosed: (IOBluetoothL2CAPChannel *) l2capChannel
{
// IOBluetoothDevice *device = [l2capChannel getDevice];
WIIUSE_WARNING("L2CAP channel was closed");
if (l2capChannel == cchan)
cchan = nil;
if (l2capChannel == ichan)
ichan = nil;
}
@end
/**
* @brief Find a wiimote or wiimotes.
*
* @param wm An array of wiimote_t structures.
* @param max_wiimotes The number of wiimote structures in \a wm.
* @param timeout The number of seconds before timing out.
*
* @return The number of wiimotes found.
*
* @see wiiuse_connect()
*
* This function will only look for wiimote devices.
* When a device is found the address in the structures will be set.
* You can then call wiiuse_connect() to connect to the found
* devices.
*/
int wiiuse_find(struct wiimote_t **wm, int max_wiimotes, int timeout)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
IOBluetoothHostController *bth;
IOBluetoothDeviceInquiry *bti;
SearchBT *sbt;
NSEnumerator *en;
int i, found_devices = 0;
bth = [[IOBluetoothHostController alloc] init];
if ([bth addressAsString] == nil)
{
WIIUSE_WARNING("No bluetooth host controller");
[bth release];
return 0;
}
sbt = [[SearchBT alloc] init];
sbt->maxDevices = max_wiimotes;
/*XXX*/ sbt->maxDevices = 1;
bti = [[IOBluetoothDeviceInquiry alloc] init];
[bti setDelegate: sbt];
[bti setInquiryLength: timeout];
[bti setSearchCriteria: kBluetoothServiceClassMajorAny
majorDeviceClass: kBluetoothDeviceClassMajorPeripheral
minorDeviceClass: kBluetoothDeviceClassMinorPeripheral2Joystick
];
IOReturn ret = [bti start];
if (ret == kIOReturnSuccess)
[bti retain];
else
WIIUSE_ERROR("Unable to do bluetooth discovery");
CFRunLoopRun();
[bti stop];
found_devices = [[bti foundDevices] count];
WIIUSE_INFO("Found %i bluetooth device(s).", found_devices);
en = [[bti foundDevices] objectEnumerator];
for (i = 0; i < found_devices; i++) {
btd = [en nextObject];
WIIMOTE_ENABLE_STATE(wm[i], WIIMOTE_STATE_DEV_FOUND);
}
[bth release];
[bti release];
[sbt release];
[pool release];
return found_devices;
}
/**
* @brief Connect to a wiimote or wiimotes once an address is known.
*
* @param wm An array of wiimote_t structures.
* @param wiimotes The number of wiimote structures in \a wm.
*
* @return The number of wiimotes that successfully connected.
*
* @see wiiuse_find()
* @see wiiuse_connect_single()
* @see wiiuse_disconnect()
*
* Connect to a number of wiimotes when the address is already set
* in the wiimote_t structures. These addresses are normally set
* by the wiiuse_find() function, but can also be set manually.
*/
int wiiuse_connect(struct wiimote_t **wm, int wiimotes)
{
int i, connected = 0;
for (i = 0; i < wiimotes; ++i)
{
if (!WIIMOTE_IS_SET(wm[i], WIIMOTE_STATE_DEV_FOUND))
continue;
if (wiiuse_connect_single(wm[i], NULL))
connected++;
}
return connected;
}
/**
* @brief Connect to a wiimote with a known address.
*
* @param wm Pointer to a wiimote_t structure.
* @param address The address of the device to connect to. If NULL,
* use the address in the struct set by wiiuse_find().
*
* @return 1 on success, 0 on failure
*/
static int wiiuse_connect_single(struct wiimote_t *wm, char *address)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
ConnectBT *cbt = [[ConnectBT alloc] init];
if (wm == NULL || WIIMOTE_IS_CONNECTED(wm))
return 0;
[btd openL2CAPChannelSync: &cchan
withPSM: kBluetoothL2CAPPSMHIDControl delegate: cbt];
[btd openL2CAPChannelSync: &ichan
withPSM: kBluetoothL2CAPPSMHIDInterrupt delegate: cbt];
if (ichan == NULL || cchan == NULL) {
WIIUSE_ERROR("Unable to open L2CAP channels");
wiiuse_disconnect(wm);
}
WIIUSE_INFO("Connected to wiimote [id %i].", wm->unid);
WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_CONNECTED);
wiiuse_set_report_type(wm);
[cbt release];
[pool release];
return 1;
}
/**
* @brief Disconnect a wiimote.
*
* @param wm Pointer to a wiimote_t structure.
*
* @see wiiuse_connect()
*
* Note that this will not free the wiimote structure.
*/
void wiiuse_disconnect(struct wiimote_t *wm)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (wm == NULL)
return;
WIIUSE_INFO("Disconnecting wiimote [id %i]", wm->unid);
WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_CONNECTED);
WIIMOTE_DISABLE_STATE(wm, WIIMOTE_STATE_HANDSHAKE);
[cchan closeChannel];
[ichan closeChannel];
[btd closeConnection];
[pool release];
}
int wiiuse_io_read(struct wiimote_t *wm)
{
int bytes;
if (!WIIMOTE_IS_CONNECTED(wm))
return 0;
if (outstanding == 0)
CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1, true);
if (queue[reader].len == 0)
return 0;
bytes = queue[reader].len;
memcpy(wm->event_buf, queue[reader].data, bytes);
queue[reader].len = 0;
reader++;
outstanding--;
if (reader == QUEUE_SIZE)
reader = 0;
if (wm->event_buf[0] == '\0')
bytes = 0;
return bytes;
}
int wiiuse_io_write(struct wiimote_t *wm, byte *buf, int len)
{
[cchan writeSync: buf length: len];
return len;
}