harvey/sys/src/cmd/usb/disk.c

/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

/*
 * usb/disk - usb mass storage file server
 */
#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <disk.h>
#include <usb/scsireq.h>
#include <usb/usb.h>
#include <usb/usbfs.h>
#include <usb/ums.h>

enum
{
	Arglen = 80,
};

static void
usage(void)
{
	fprint(2, "usage: %s [-Dd] [-N nb] [-m mnt] [-s srv] [dev...]\n", argv0);
	threadexitsall("usage");
}

static int csps[] = {
	CSP(Clstorage,Subatapi,Protobulk),
	CSP(Clstorage,Sub8070,Protobulk),
	CSP(Clstorage,Subscsi,Protobulk),
	0,
};

void
threadmain(int argc, char **argv)
{
	char args[Arglen];
	char *as, *ae, *srv, *mnt;

	srv = nil;
	mnt = "/n/disk";

	quotefmtinstall();
	ae = args+sizeof(args);
	as = seprint(args, ae, "disk");
	ARGBEGIN{
	case 'D':
		usbfsdebug++;
		break;
	case 'd':
		usbdebug++;
		as = seprint(as, ae, " -d");
		break;
	case 'N':
		as = seprint(as, ae, " -N %s", EARGF(usage()));
		break;
	case 'm':
		mnt = EARGF(usage());
		break;
	case 's':
		srv = EARGF(usage());
		break;
	default:
		usage();
	}ARGEND

	rfork(RFNOTEG);
	threadsetgrp(threadid());
	fmtinstall('U', Ufmt);
	usbfsinit(srv, mnt, &usbdirfs, MBEFORE);
	startdevs(args, argv, argc, matchdevcsp, csps, diskmain);
	threadexits(nil);
}