MIDIoIP_test - MIDIoIP test This test program controls blin…

Users » xshige » Code » MIDIoIP_test

Shigeki KOMATSU / Mbed 2 deprecated MIDIoIP_test

MIDIoIP test This test program controls blinking of Four LEDs by Knob#1/slider#1/key of KORG nano Kontrol/Key, and needs midi_bridge.c on linux to transfer MIDI data to mbed (over PC-serial or IP packet)

Dependencies: EthernetNetIf mbed

main.cpp@0:189db48772ae, 2010-09-20 (annotated)

Committer:: xshige
Date:: Mon Sep 20 13:18:42 2010 +0000
Revision:: 0:189db48772ae

Who changed what in which revision?

User	Revision	Line number	New contents of line
xshige	0:189db48772ae	1
xshige	0:189db48772ae	2	// MIDI over IP/serial test (MIDIoIP_test)
xshige	0:189db48772ae	3
xshige	0:189db48772ae	4	// This test program controls blinking of Four LEDs
xshige	0:189db48772ae	5	// by Knob#1/slider#1/key of KORG nano Kontrol/Key,
xshige	0:189db48772ae	6	// and needs midi_bridge.c on linux to trasfer MIDI data
xshige	0:189db48772ae	7	// to mbed (over PC-serial or IP packet)
xshige	0:189db48772ae	8	//
xshige	0:189db48772ae	9	// Note:
xshige	0:189db48772ae	10	// midi_bridge.c is included in this file as comment.
xshige	0:189db48772ae	11	//
xshige	0:189db48772ae	12
xshige	0:189db48772ae	13	// written by: xshige
xshige	0:189db48772ae	14	// 2010/9/20
xshige	0:189db48772ae	15
xshige	0:189db48772ae	16
xshige	0:189db48772ae	17	//#define SERIAL_MIDI // get MIDI data from PC serial
xshige	0:189db48772ae	18	#define UDP_MIDI // get MIDI data from IP packet(UDP)
xshige	0:189db48772ae	19
xshige	0:189db48772ae	20	#include "mbed.h"
xshige	0:189db48772ae	21	#include "EthernetNetIf.h"
xshige	0:189db48772ae	22	#include "UDPSocket.h"
xshige	0:189db48772ae	23
xshige	0:189db48772ae	24	EthernetNetIf eth;
xshige	0:189db48772ae	25	#if 0
xshige	0:189db48772ae	26	EthernetNetIf eth(
xshige	0:189db48772ae	27	IpAddr(192,168,0,25), //IP Address
xshige	0:189db48772ae	28	IpAddr(255,255,255,0), //Network Mask
xshige	0:189db48772ae	29	IpAddr(192,168,0,1), //Gateway
xshige	0:189db48772ae	30	IpAddr(192,168,0,1) //DNS
xshige	0:189db48772ae	31	);
xshige	0:189db48772ae	32	#endif
xshige	0:189db48772ae	33
xshige	0:189db48772ae	34	UDPSocket udp;
xshige	0:189db48772ae	35
xshige	0:189db48772ae	36
xshige	0:189db48772ae	37	//-------------------------------------------------
xshige	0:189db48772ae	38
xshige	0:189db48772ae	39	class RingBuffer
xshige	0:189db48772ae	40	{
xshige	0:189db48772ae	41	protected:
xshige	0:189db48772ae	42	unsigned char *buffer;
xshige	0:189db48772ae	43	int buffersize;
xshige	0:189db48772ae	44	int rp; // read index
xshige	0:189db48772ae	45	int wp; // write index
xshige	0:189db48772ae	46	int num; // how many bytes you have in buffer
xshige	0:189db48772ae	47
xshige	0:189db48772ae	48	public:
xshige	0:189db48772ae	49	RingBuffer(int bufsiz)
xshige	0:189db48772ae	50	{
xshige	0:189db48772ae	51	buffersize = bufsiz;
xshige	0:189db48772ae	52
xshige	0:189db48772ae	53	buffer = new unsigned char[buffersize];
xshige	0:189db48772ae	54	// memset(buffer, 0, sizeof(char) * buffersize);
xshige	0:189db48772ae	55
xshige	0:189db48772ae	56	// reset pointer to make empty
xshige	0:189db48772ae	57	rp = 0;
xshige	0:189db48772ae	58	wp = 0;
xshige	0:189db48772ae	59	// zero byte in buffer
xshige	0:189db48772ae	60	num = 0;
xshige	0:189db48772ae	61	};
xshige	0:189db48772ae	62
xshige	0:189db48772ae	63	~RingBuffer(void)
xshige	0:189db48772ae	64	{
xshige	0:189db48772ae	65	delete[] buffer;
xshige	0:189db48772ae	66	};
xshige	0:189db48772ae	67
xshige	0:189db48772ae	68	int GetByte(unsigned char *cp);
xshige	0:189db48772ae	69	int PutByte(unsigned char c);
xshige	0:189db48772ae	70	int IsEmpty(void);
xshige	0:189db48772ae	71	int IsNumBytes(void);
xshige	0:189db48772ae	72	};
xshige	0:189db48772ae	73
xshige	0:189db48772ae	74
xshige	0:189db48772ae	75	int RingBuffer::GetByte(unsigned char *cp )
xshige	0:189db48772ae	76	{
xshige	0:189db48772ae	77	if( rp != wp ) { // not empty
xshige	0:189db48772ae	78	*cp = buffer[rp];
xshige	0:189db48772ae	79	rp = (rp + 1) % buffersize;
xshige	0:189db48772ae	80	num--;
xshige	0:189db48772ae	81	return 0;
xshige	0:189db48772ae	82	} else { // empty
xshige	0:189db48772ae	83	num = 0;
xshige	0:189db48772ae	84	return -1;
xshige	0:189db48772ae	85	}
xshige	0:189db48772ae	86	}
xshige	0:189db48772ae	87
xshige	0:189db48772ae	88
xshige	0:189db48772ae	89	int RingBuffer::PutByte(unsigned char c )
xshige	0:189db48772ae	90	{
xshige	0:189db48772ae	91	int next = (wp + 1) % buffersize;
xshige	0:189db48772ae	92	if( next == rp ) {
xshige	0:189db48772ae	93	printf("* Buffer Full *\r\n" );
xshige	0:189db48772ae	94	// printf("*");//debug
xshige	0:189db48772ae	95	return -1;
xshige	0:189db48772ae	96	}
xshige	0:189db48772ae	97	buffer[wp] = c;
xshige	0:189db48772ae	98	wp = next;
xshige	0:189db48772ae	99	num++;
xshige	0:189db48772ae	100	return 0;
xshige	0:189db48772ae	101	}
xshige	0:189db48772ae	102
xshige	0:189db48772ae	103
xshige	0:189db48772ae	104	int RingBuffer::IsEmpty(void)
xshige	0:189db48772ae	105	{
xshige	0:189db48772ae	106	return (rp==wp)?(true):(false);
xshige	0:189db48772ae	107	}
xshige	0:189db48772ae	108
xshige	0:189db48772ae	109	int RingBuffer::IsNumBytes(void)
xshige	0:189db48772ae	110	{
xshige	0:189db48772ae	111	return num;
xshige	0:189db48772ae	112	}
xshige	0:189db48772ae	113
xshige	0:189db48772ae	114	//-----------------
xshige	0:189db48772ae	115
xshige	0:189db48772ae	116	// create RingBuffer
xshige	0:189db48772ae	117	RingBuffer UDPbuf(64);
xshige	0:189db48772ae	118
xshige	0:189db48772ae	119	void onUDPSocketEvent(UDPSocketEvent e)
xshige	0:189db48772ae	120	{
xshige	0:189db48772ae	121	switch(e)
xshige	0:189db48772ae	122	{
xshige	0:189db48772ae	123	case UDPSOCKET_READABLE: //The only event for now
xshige	0:189db48772ae	124	char buf[64] = {0};
xshige	0:189db48772ae	125	Host host;
xshige	0:189db48772ae	126	while( int len = udp.recvfrom( buf, 63, &host ) )
xshige	0:189db48772ae	127	{
xshige	0:189db48772ae	128	if( len <= 0 ) break;
xshige	0:189db48772ae	129	for(int i=0;i<len;i++) {
xshige	0:189db48772ae	130	UDPbuf.PutByte(buf[i]);
xshige	0:189db48772ae	131	}
xshige	0:189db48772ae	132	// printf("\r\nFrom %d.%d.%d.%d\r\n",
xshige	0:189db48772ae	133	// host.getIp()[0], host.getIp()[1], host.getIp()[2], host.getIp()[3]); //debug
xshige	0:189db48772ae	134	// printf("len:%d\r\n",len); // debug
xshige	0:189db48772ae	135	}
xshige	0:189db48772ae	136	break;
xshige	0:189db48772ae	137	}
xshige	0:189db48772ae	138	}
xshige	0:189db48772ae	139
xshige	0:189db48772ae	140	DigitalOut led1(LED1, "led1");
xshige	0:189db48772ae	141	DigitalOut led2(LED2, "led2");
xshige	0:189db48772ae	142	DigitalOut led3(LED3, "led3");
xshige	0:189db48772ae	143	DigitalOut led4(LED4, "led4");
xshige	0:189db48772ae	144
xshige	0:189db48772ae	145	BusOut myleds(LED1, LED2, LED3, LED4);
xshige	0:189db48772ae	146
xshige	0:189db48772ae	147	int main() {
xshige	0:189db48772ae	148
xshige	0:189db48772ae	149	// make debug port Fast
xshige	0:189db48772ae	150	Serial pc(USBTX, USBRX);
xshige	0:189db48772ae	151	// pc.baud(9600);
xshige	0:189db48772ae	152	pc.baud(115200);
xshige	0:189db48772ae	153	// pc.baud(230400);
xshige	0:189db48772ae	154
xshige	0:189db48772ae	155
xshige	0:189db48772ae	156	printf("Setting up...\r\n");
xshige	0:189db48772ae	157	EthernetErr ethErr = eth.setup();
xshige	0:189db48772ae	158	if(ethErr)
xshige	0:189db48772ae	159	{
xshige	0:189db48772ae	160	printf("Error %d in setup.\r\n", ethErr);
xshige	0:189db48772ae	161	return -1;
xshige	0:189db48772ae	162	}
xshige	0:189db48772ae	163	printf("Setup OK\r\n");
xshige	0:189db48772ae	164
xshige	0:189db48772ae	165	//Host broadcast(IpAddr(192, 168, 0,255), 12345, NULL); // local broadcast over router
xshige	0:189db48772ae	166	//Host multicast(IpAddr(239, 192, 1, 100), 50000, NULL); // Join multicast group on port 50000
xshige	0:189db48772ae	167	Host broadcast(IpAddr(255, 255, 255,255), 8888, NULL); // broadcast in a router
xshige	0:189db48772ae	168
xshige	0:189db48772ae	169	udp.setOnEvent(&onUDPSocketEvent);
xshige	0:189db48772ae	170
xshige	0:189db48772ae	171	udp.bind(broadcast);
xshige	0:189db48772ae	172
xshige	0:189db48772ae	173	Timer tmr;
xshige	0:189db48772ae	174	tmr.start();
xshige	0:189db48772ae	175
xshige	0:189db48772ae	176	#ifdef SERIAL_MIDI
xshige	0:189db48772ae	177	printf("Serial MIDI enable\r\n");
xshige	0:189db48772ae	178	#else
xshige	0:189db48772ae	179	printf("Serial MIDI disable\r\n");
xshige	0:189db48772ae	180	#endif
xshige	0:189db48772ae	181
xshige	0:189db48772ae	182
xshige	0:189db48772ae	183	#ifdef UDP_MIDI
xshige	0:189db48772ae	184	printf("IP MIDI enable\r\n");
xshige	0:189db48772ae	185	#else
xshige	0:189db48772ae	186	printf("IP MIDI disable\r\n");
xshige	0:189db48772ae	187	#endif
xshige	0:189db48772ae	188
xshige	0:189db48772ae	189
xshige	0:189db48772ae	190	while(true)
xshige	0:189db48772ae	191	{
xshige	0:189db48772ae	192	Net::poll();
xshige	0:189db48772ae	193	int velocity,MIDIch,pitch;
xshige	0:189db48772ae	194	//
xshige	0:189db48772ae	195	#ifdef SERIAL_MIDI
xshige	0:189db48772ae	196	if(pc.readable()) {
xshige	0:189db48772ae	197	int c;
xshige	0:189db48772ae	198	c=pc.getc(); // get 1st byte
xshige	0:189db48772ae	199	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	200	MIDIch=c&0x0F;
xshige	0:189db48772ae	201	c=c&0xF0;
xshige	0:189db48772ae	202	if (0xB0==c) {
xshige	0:189db48772ae	203	c=pc.getc();
xshige	0:189db48772ae	204	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	205	if (0x0E==c) { // Knob#1 on KORG Kontrol (SCENE#1)
xshige	0:189db48772ae	206	c=pc.getc(); // get volume
xshige	0:189db48772ae	207	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	208	// MIDI controls LEDs
xshige	0:189db48772ae	209	myleds=(15*c)/127;
xshige	0:189db48772ae	210	}
xshige	0:189db48772ae	211	if (0x02==c) { // Slider#1 on KORG Kontrol (SCENE#1)
xshige	0:189db48772ae	212	c=pc.getc(); // get volume
xshige	0:189db48772ae	213	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	214	// MIDI controls LEDs
xshige	0:189db48772ae	215	myleds=(15*c)/127;
xshige	0:189db48772ae	216	}
xshige	0:189db48772ae	217	} // if (0xB0==c)
xshige	0:189db48772ae	218	if (0x90==c) { // Note On
xshige	0:189db48772ae	219	c=pc.getc(); // get Note#
xshige	0:189db48772ae	220	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	221	// Note# controls LEDs
xshige	0:189db48772ae	222	myleds=(c%0x10);
xshige	0:189db48772ae	223	c=pc.getc(); // get Velocity
xshige	0:189db48772ae	224	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	225	velocity=c;
xshige	0:189db48772ae	226	}
xshige	0:189db48772ae	227	if (0x80==c) { // Note Off
xshige	0:189db48772ae	228	c=pc.getc(); // get Note#
xshige	0:189db48772ae	229	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	230	// Note# controls LEDs
xshige	0:189db48772ae	231	myleds=(c%0x10);
xshige	0:189db48772ae	232	c=pc.getc(); // get Velocity
xshige	0:189db48772ae	233	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	234	// Velocity(at Note On) controls LEDs
xshige	0:189db48772ae	235	myleds=(15*velocity)/127;
xshige	0:189db48772ae	236	}
xshige	0:189db48772ae	237	if (0xE0==c) { // Pich Bend
xshige	0:189db48772ae	238	c=pc.getc(); // get LSB
xshige	0:189db48772ae	239	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	240	if (0xE0==c) c=pc.getc(); // re-get for error recover
xshige	0:189db48772ae	241	pitch=(c&0x7F);
xshige	0:189db48772ae	242	c=pc.getc(); // get MSB
xshige	0:189db48772ae	243	printf("Received:%02X\r\n",c);
xshige	0:189db48772ae	244	pitch+=((c&0x7F)<<7);pitch-=8192;
xshige	0:189db48772ae	245	printf("Pitch Bend:%d\r\n",pitch);
xshige	0:189db48772ae	246
xshige	0:189db48772ae	247	}
xshige	0:189db48772ae	248	} // pc.readable
xshige	0:189db48772ae	249	#endif // ifdef SERIAL_MIDI
xshige	0:189db48772ae	250	#ifdef UDP_MIDI
xshige	0:189db48772ae	251	// get MIDI data in UDP packet
xshige	0:189db48772ae	252	if(UDPbuf.IsNumBytes()>3) {
xshige	0:189db48772ae	253	unsigned char uc;
xshige	0:189db48772ae	254	UDPbuf.GetByte(&uc); // get 1st byte
xshige	0:189db48772ae	255	printf("\r\nFrom Net:%02X\r\n",uc);
xshige	0:189db48772ae	256	MIDIch=uc&0x0F;
xshige	0:189db48772ae	257	uc=uc&0xF0;
xshige	0:189db48772ae	258	if (0xB0==uc) {
xshige	0:189db48772ae	259	UDPbuf.GetByte(&uc);
xshige	0:189db48772ae	260	if (0xB0==uc) UDPbuf.GetByte(&uc); // re-get for error recover
xshige	0:189db48772ae	261	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	262	if (0x0E==uc) { // Knob#1 on KORG Kontrol (SCENE#1)
xshige	0:189db48772ae	263	UDPbuf.GetByte(&uc); // get volume
xshige	0:189db48772ae	264	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	265	// MIDI controls LEDs
xshige	0:189db48772ae	266	myleds=(15*uc)/127;
xshige	0:189db48772ae	267	}
xshige	0:189db48772ae	268	if (0x02==uc) { // Slider#1 on KORG Kontrol (SCENE#1)
xshige	0:189db48772ae	269	UDPbuf.GetByte(&uc); // get volume
xshige	0:189db48772ae	270	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	271	// MIDI controls LEDs
xshige	0:189db48772ae	272	myleds=(15*uc)/127;
xshige	0:189db48772ae	273	}
xshige	0:189db48772ae	274	} // if (0xB0==uc)
xshige	0:189db48772ae	275	if (0x90==uc) { // Note On
xshige	0:189db48772ae	276	UDPbuf.GetByte(&uc); // get Note#
xshige	0:189db48772ae	277	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	278	// Note# controls LEDs
xshige	0:189db48772ae	279	myleds=(uc%0x10);
xshige	0:189db48772ae	280	UDPbuf.GetByte(&uc); // get Velocity
xshige	0:189db48772ae	281	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	282	velocity=uc;
xshige	0:189db48772ae	283	}
xshige	0:189db48772ae	284	if (0x80==uc) { // Note Off
xshige	0:189db48772ae	285	UDPbuf.GetByte(&uc); // get Note#
xshige	0:189db48772ae	286	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	287	// Note# controls LEDs
xshige	0:189db48772ae	288	myleds=(uc%0x10);
xshige	0:189db48772ae	289	UDPbuf.GetByte(&uc); // get Velocity
xshige	0:189db48772ae	290	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	291	// Velocity(at Note On) controls LEDs
xshige	0:189db48772ae	292	myleds=(15*velocity)/127;
xshige	0:189db48772ae	293	}
xshige	0:189db48772ae	294	if (0xE0==uc) { // Pich Bend
xshige	0:189db48772ae	295	UDPbuf.GetByte(&uc); // get LSB
xshige	0:189db48772ae	296	if (0xE0==uc) UDPbuf.GetByte(&uc); // re-get for error recover
xshige	0:189db48772ae	297	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	298	pitch=(uc&0x7F);
xshige	0:189db48772ae	299	UDPbuf.GetByte(&uc); // get MSB
xshige	0:189db48772ae	300	printf("From Net:%02X\r\n",uc);
xshige	0:189db48772ae	301	pitch+=((uc&0x7F)<<7);pitch-=8192;
xshige	0:189db48772ae	302	printf("Pitch Bend From Net:%d\r\n",pitch);
xshige	0:189db48772ae	303	}
xshige	0:189db48772ae	304	} // if !UDPbuf.IsNumBytes()
xshige	0:189db48772ae	305	#endif // ifdef UDP_MIDI
xshige	0:189db48772ae	306	//
xshige	0:189db48772ae	307	if(tmr.read() > 0.5) {
xshige	0:189db48772ae	308	tmr.reset();
xshige	0:189db48772ae	309
xshige	0:189db48772ae	310	// blink to indicate alive
xshige	0:189db48772ae	311	led1=!led1;
xshige	0:189db48772ae	312	}
xshige	0:189db48772ae	313	} // while(true)
xshige	0:189db48772ae	314	}
xshige	0:189db48772ae	315
xshige	0:189db48772ae	316	//---------------------------------------------------------------------------
xshige	0:189db48772ae	317	#if 0
xshige	0:189db48772ae	318	/*
xshige	0:189db48772ae	319	midi_bridge.c
xshige	0:189db48772ae	320
xshige	0:189db48772ae	321	How to Compile:
xshige	0:189db48772ae	322	gcc midi_bridge.c -o midi_bridge
xshige	0:189db48772ae	323
xshige	0:189db48772ae	324	How to execute(on linux):
xshige	0:189db48772ae	325	<connet USB-MIDI devices and mbed USB to PC>
xshige	0:189db48772ae	326	midi_bridge[Enter]
xshige	0:189db48772ae	327	init serial between mbed and PC
xshige	0:189db48772ae	328	init serial for USB-MIDI
xshige	0:189db48772ae	329	Connected on /dev/mid2
xshige	0:189db48772ae	330	Connected on /dev/mid3
xshige	0:189db48772ae	331	Setting up...
xshige	0:189db48772ae	332	[..\fwk\if\eth\EthernetNetIf.cpp:setup@86] HW Addr is : 00:02:f7:f0:4f:9d.
xshige	0:189db48772ae	333	[..\fwk\if\eth\EthernetNetIf.cpp:setup@99] DHCP Started, waiting for IP...
xshige	0:189db48772ae	334	[..\fwk\if\eth\EthernetNetIf.cpp:setup@142] Connected, IP : 192.168.0.2
xshige	0:189db48772ae	335	Setup OK
xshige	0:189db48772ae	336	Serial MIDI disable
xshige	0:189db48772ae	337	IP MIDI enable
xshige	0:189db48772ae	338	<move knob#1>
xshige	0:189db48772ae	339	B0
xshige	0:189db48772ae	340	0E
xshige	0:189db48772ae	341	35
xshige	0:189db48772ae	342
xshige	0:189db48772ae	343	From Net:B0
xshige	0:189db48772ae	344	From Net:0E
xshige	0:189db48772ae	345	From Net:36
xshige	0:189db48772ae	346	B0
xshige	0:189db48772ae	347	0E
xshige	0:189db48772ae	348	34
xshige	0:189db48772ae	349
xshige	0:189db48772ae	350	From Net:B0
xshige	0:189db48772ae	351	From Net:0E
xshige	0:189db48772ae	352	From Net:35
xshige	0:189db48772ae	353	....
xshige	0:189db48772ae	354
xshige	0:189db48772ae	355	*/
xshige	0:189db48772ae	356
xshige	0:189db48772ae	357
xshige	0:189db48772ae	358	//----
xshige	0:189db48772ae	359
xshige	0:189db48772ae	360	// MIDI bridge among USB-MIDI, PC-serial, and IP-packet
xshige	0:189db48772ae	361	//
xshige	0:189db48772ae	362	// written by:xshige
xshige	0:189db48772ae	363
xshige	0:189db48772ae	364	// v0.5 2010/9/18
xshige	0:189db48772ae	365	// (implemented path: USB-MIDI to PC-serial, USB-MIDI to IP-packet)
xshige	0:189db48772ae	366
xshige	0:189db48772ae	367	#include <stdio.h>
xshige	0:189db48772ae	368	#include <stdlib.h>
xshige	0:189db48772ae	369
xshige	0:189db48772ae	370	//#include <io.h>
xshige	0:189db48772ae	371	#include <fcntl.h>
xshige	0:189db48772ae	372
xshige	0:189db48772ae	373	#include <unistd.h>
xshige	0:189db48772ae	374	#include <termios.h>
xshige	0:189db48772ae	375	#include <signal.h>
xshige	0:189db48772ae	376	#include <errno.h>
xshige	0:189db48772ae	377
xshige	0:189db48772ae	378	// socket
xshige	0:189db48772ae	379	#include <sys/types.h>
xshige	0:189db48772ae	380	#include <sys/socket.h>
xshige	0:189db48772ae	381	#include <netinet/in.h>
xshige	0:189db48772ae	382
xshige	0:189db48772ae	383
xshige	0:189db48772ae	384	#define max(a,b) ((a) > (b) ? (a) : (b))
xshige	0:189db48772ae	385
xshige	0:189db48772ae	386	int main(void)
xshige	0:189db48772ae	387	{
xshige	0:189db48772ae	388	// init socket
xshige	0:189db48772ae	389	int sock;
xshige	0:189db48772ae	390	struct sockaddr_in addr;
xshige	0:189db48772ae	391	int yes = 1;
xshige	0:189db48772ae	392	sock = socket(AF_INET, SOCK_DGRAM, 0);
xshige	0:189db48772ae	393	addr.sin_family = AF_INET;
xshige	0:189db48772ae	394	// ***** IP setup *****
xshige	0:189db48772ae	395	addr.sin_port = htons(8888); // port#
xshige	0:189db48772ae	396	//addr.sin_port = htons(50000); // port#
xshige	0:189db48772ae	397	//addr.sin_addr.s_addr = inet_addr("239.192.1.100"); //Join multicast group on port 50000
xshige	0:189db48772ae	398	addr.sin_addr.s_addr = inet_addr("255.255.255.255"); // broadcast in a router
xshige	0:189db48772ae	399	//addr.sin_addr.s_addr = inet_addr("192.168.0.255"); // local broadcast over routers
xshige	0:189db48772ae	400	//memo: multicast IP 224.0.0.1 hosts in the subnet
xshige	0:189db48772ae	401	// *************************
xshige	0:189db48772ae	402	//
xshige	0:189db48772ae	403	setsockopt(sock,
xshige	0:189db48772ae	404	SOL_SOCKET, SO_BROADCAST, (char *)&yes, sizeof(yes));
xshige	0:189db48772ae	405
xshige	0:189db48772ae	406	// * serial for mbed *
xshige	0:189db48772ae	407	printf("init serial between mbed and PC\n");
xshige	0:189db48772ae	408	struct termios options;
xshige	0:189db48772ae	409	int fdt=open("/dev/ttyACM0",O_RDWR\|O_NOCTTY\|O_NONBLOCK);
xshige	0:189db48772ae	410	if (fdt == -1) {
xshige	0:189db48772ae	411	perror("open_port: Unable to open port between mbed and PC - ");
xshige	0:189db48772ae	412	}
xshige	0:189db48772ae	413	// Get the current options for the port...
xshige	0:189db48772ae	414	tcgetattr(fdt, &options);
xshige	0:189db48772ae	415	// Set the baud rates to 1115200 bps for mbed
xshige	0:189db48772ae	416	cfsetispeed(&options, B115200);
xshige	0:189db48772ae	417	cfsetospeed(&options, B115200);
xshige	0:189db48772ae	418	// No parity (8N1)
xshige	0:189db48772ae	419	options.c_cflag &= ~PARENB;
xshige	0:189db48772ae	420	options.c_cflag &= ~CSTOPB;
xshige	0:189db48772ae	421	options.c_cflag &= ~CSIZE;
xshige	0:189db48772ae	422	options.c_cflag \|= CS8;
xshige	0:189db48772ae	423	// Set the new options for the port...
xshige	0:189db48772ae	424	tcsetattr(fdt, TCSANOW, &options);
xshige	0:189db48772ae	425
xshige	0:189db48772ae	426	// * serial for MIDI *
xshige	0:189db48772ae	427	printf("init serial for USB-MIDI\n");
xshige	0:189db48772ae	428	int fdm2=open("/dev/midi2", O_RDONLY\|O_NONBLOCK);
xshige	0:189db48772ae	429	int fdm3=open("/dev/midi3", O_RDONLY\|O_NONBLOCK);
xshige	0:189db48772ae	430	int fdm4=open("/dev/midi4", O_RDONLY\|O_NONBLOCK);
xshige	0:189db48772ae	431	if (fdm2 != -1) printf("Connected on /dev/mid2\n");
xshige	0:189db48772ae	432	if (fdm3 != -1) printf("Connected on /dev/mid3\n");
xshige	0:189db48772ae	433	if (fdm4 != -1) printf("Connected on /dev/mid4\n");
xshige	0:189db48772ae	434
xshige	0:189db48772ae	435	// Init FDs for Select
xshige	0:189db48772ae	436	int maxfd=-1;
xshige	0:189db48772ae	437	fd_set fds,readfds;
xshige	0:189db48772ae	438	struct timeval timeout;
xshige	0:189db48772ae	439	// Init the read FD set
xshige	0:189db48772ae	440	FD_ZERO(&readfds);
xshige	0:189db48772ae	441	FD_SET(fdt, &readfds);
xshige	0:189db48772ae	442	if (fdm2 != -1) FD_SET(fdm2, &readfds);
xshige	0:189db48772ae	443	if (fdm3 != -1) FD_SET(fdm3, &readfds);
xshige	0:189db48772ae	444	if (fdm4 != -1) FD_SET(fdm4, &readfds);
xshige	0:189db48772ae	445	// get max fd
xshige	0:189db48772ae	446	maxfd=max(maxfd,fdt);
xshige	0:189db48772ae	447	if (fdm2 != -1) maxfd=max(maxfd,fdm2);
xshige	0:189db48772ae	448	if (fdm3 != -1) maxfd=max(maxfd,fdm3);
xshige	0:189db48772ae	449	if (fdm4 != -1) maxfd=max(maxfd,fdm4);
xshige	0:189db48772ae	450	maxfd=maxfd+1;
xshige	0:189db48772ae	451	// printf("FDs:%d %d %d %d\n",fdt,fdm2,fdm3,fdm4); // debug
xshige	0:189db48772ae	452	// printf("maxfd:%d\n",maxfd); // debug
xshige	0:189db48772ae	453
xshige	0:189db48772ae	454	unsigned char cs,cm;
xshige	0:189db48772ae	455	while(1) {
xshige	0:189db48772ae	456	// init FDs for the select at everytime
xshige	0:189db48772ae	457	memcpy(&fds, &readfds, sizeof(fd_set));
xshige	0:189db48772ae	458	// Init the timeout structure
xshige	0:189db48772ae	459	timeout.tv_sec = 3600; // set one hour for timeout
xshige	0:189db48772ae	460	timeout.tv_usec = 0;
xshige	0:189db48772ae	461	// Do the select
xshige	0:189db48772ae	462	int n = select(maxfd, &fds, NULL, NULL, &timeout);
xshige	0:189db48772ae	463	if (n == 0) {
xshige	0:189db48772ae	464	puts("* TIMEOUT * ");
xshige	0:189db48772ae	465	} else {
xshige	0:189db48772ae	466	//
xshige	0:189db48772ae	467	// for /dev/midi2
xshige	0:189db48772ae	468	if (fdm2 != -1)
xshige	0:189db48772ae	469	if (FD_ISSET(fdm2,&fds)) if (read(fdm2,&cm,1) == 1) {
xshige	0:189db48772ae	470	// readable
xshige	0:189db48772ae	471	printf("%02X\n",cm); // display MIDI in HEX on console
xshige	0:189db48772ae	472	write(fdt,&cm,1); // USB-MIDI to mbed
xshige	0:189db48772ae	473	sendto(sock,&cm,1, // USB-MIDI to IP network
xshige	0:189db48772ae	474	0, (struct sockaddr *)&addr, sizeof(addr));
xshige	0:189db48772ae	475	}
xshige	0:189db48772ae	476	// for /dev/midi3
xshige	0:189db48772ae	477	if (fdm3 != -1)
xshige	0:189db48772ae	478	if (FD_ISSET(fdm3,&fds)) if (read(fdm3,&cm,1) == 1) {
xshige	0:189db48772ae	479	// readable
xshige	0:189db48772ae	480	printf("%02X\n",cm); // display MIDI in HEX on console
xshige	0:189db48772ae	481	write(fdt,&cm,1); // USB-MIDI to mbed
xshige	0:189db48772ae	482	sendto(sock,&cm,1, // USB-MIDI to IP network
xshige	0:189db48772ae	483	0, (struct sockaddr *)&addr, sizeof(addr));
xshige	0:189db48772ae	484
xshige	0:189db48772ae	485
xshige	0:189db48772ae	486	}
xshige	0:189db48772ae	487	// for /dev/midi4
xshige	0:189db48772ae	488	if (fdm4 != -1)
xshige	0:189db48772ae	489	if (FD_ISSET(fdm4,&fds)) if (read(fdm4,&cm,1) == 1) {
xshige	0:189db48772ae	490	// readable
xshige	0:189db48772ae	491	printf("%02X\n",cm); // display MIDI in HEX on console
xshige	0:189db48772ae	492	write(fdt,&cm,1); // USB-MIDI to mbed
xshige	0:189db48772ae	493	sendto(sock,&cm,1, // USB-MIDI to IP network
xshige	0:189db48772ae	494	0, (struct sockaddr *)&addr, sizeof(addr));
xshige	0:189db48772ae	495
xshige	0:189db48772ae	496
xshige	0:189db48772ae	497	}
xshige	0:189db48772ae	498	// for /dev/ttyACM0
xshige	0:189db48772ae	499	if (FD_ISSET(fdt,&fds)) if (read(fdt,&cs,1) == 1) {
xshige	0:189db48772ae	500	// readable on mbed
xshige	0:189db48772ae	501	putchar(cs); // display to console
xshige	0:189db48772ae	502	//write(fdm2,&cs,1); // mbed to USB-MIDI
xshige	0:189db48772ae	503	}
xshige	0:189db48772ae	504	}// if else
xshige	0:189db48772ae	505
xshige	0:189db48772ae	506	} // while
xshige	0:189db48772ae	507	}
xshige	0:189db48772ae	508	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	20 Sep 2010
Imports:	13
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	2

main.cpp@0:189db48772ae, 2010-09-20 (annotated)

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