midi/usb_midi/usb_midi.cpp

38 	usbmidi_port_info* port = NULL;
41 	port = (usbmidi_port_info*)malloc(sizeof(usbmidi_port_info));
42 	if (port == NULL)
45 	sprintf(port->name, "%s-%d", devinfo->name, cable);
46 	port->device = devinfo;
47 	port->cable = cable;
48 	port->next = NULL;
49 	port->open = 0;
50 	port->open_fd = NULL;
51 	port->has_in = has_in;
52 	port->has_out = has_out;
53 	port->rbuf = create_ring_buffer(1024);
55 	devinfo->ports[cable] = port;
57 	DPRINTF_INFO((MY_ID "Created port %p cable %d: %s\n",
58 		port, cable, port->name));
60 	return port;
65 remove_port(usbmidi_port_info* port)
67 	assert(port != NULL);
68 	if (port->rbuf != NULL) {
69 		delete_ring_buffer(port->rbuf);
70 		port->rbuf = NULL;
72 	DPRINTF_INFO((MY_ID "remove_port %p done\n", port));
74 	free(port);
158 /* driver cookie (per open -- but only one open per port allowed!) */
164 	usbmidi_port_info*		port;
210 		usbmidi_port_info* port = midiDevice->ports[packet->cn];
212 		/* port matching 'cable number' */
213 		if (port == NULL) {
214 			DPRINTF_ERR((MY_ID "no port matching cable number %d!\n",
216 		} else if (port->open_fd == NULL) {
217 			DPRINTF_ERR((MY_ID "received data for port %d but it is closed!\n",
220 			ring_buffer_write(port->rbuf, packet->midi, pktlen);
221 			release_sem_etc(port->open_fd->sem_cb, pktlen,
262 				usbmidi_port_info* port = midiDevice->ports[cable];
263 				if (port == NULL)
265 				if (port->open_fd != NULL)
266 					delete_sem(port->open_fd->sem_cb);
421 	usbmidi_port_info* port;
423 		port = create_usbmidi_port(midiDevice, i,
425 		midiDevice->ports[i] = port;
430 		add_port_info(port);
462 		usbmidi_port_info* port = midiDevice->ports[cable];
463 		if (port == NULL)
466 		DPRINTF_DEBUG((MY_ID "removing port %d\n", cable));
467 		remove_port_info(port);
468 		if (port->open_fd != NULL) {
469 			port->open_fd->port = NULL;
470 			port->open_fd->device = NULL;
471 			delete_sem(port->open_fd->sem_cb);
474 		remove_port(port);
514 	usbmidi_port_info* port;
522 	if ((port = search_port_info(name)) == NULL)
525 	if (!port->has_in && mode != O_WRONLY)
527 	else if (!port->has_out && mode != O_RDONLY)
541 	cookie->port = port;
542 	cookie->device = port->device;
545 	if (port->open_fd != NULL) {
552 	port->open_fd = cookie;
553 	port->open++;
558 		name, port->open));
569 	usbmidi_port_info* port = cookie->port;
593 		ring_buffer_user_read(port->rbuf, (uint8*)buf, 1);
640 	usbmidi_port_info* port = cookie->port;
681 			pkt->cn = port->cable;
725 	usbmidi_port_info* port = cookie->port;
728 	DPRINTF_INFO((MY_ID "usb_midi_close(%p device=%p port=%p)\n",
729 		cookie, midiDevice, port));
732 	if (port != NULL) {
733 		/* detach the cookie from port */
734 		port->open_fd = NULL;
735 		--port->open;