usb-driver.c

Xilinx USB下载线 Linux驱动

			}
			break;

		case INT_WAIT:
			DPRINTF("INT_WAIT\n");
			{
				struct interrupt *it = (struct interrupt*)(wdheader->data);

				DPRINTF("-> Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
				it->hInterrupt, it->dwOptions,
				it->dwCmds, it->fEnableOk, it->dwCounter,
				it->dwLost, it->fStopped);

#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = xpcu_int_wait(it);
#endif

				DPRINTF("<- INT_WAIT_RETURN: Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n",
				it->hInterrupt, it->dwOptions, it->dwCmds,
				it->fEnableOk, it->dwCounter, it->dwLost,
				it->fStopped);
			}
			break;

		case CARD_UNREGISTER:
			DPRINTF("CARD_UNREGISTER\n");
			{
				struct card_register* cr = (struct card_register*)(wdheader->data);

				DPRINTF("-> Addr: 0x%lx, bytes: %lu, bar: %lu\n",
				(unsigned long)cr->Card.Item[0].I.IO.dwAddr,
				cr->Card.Item[0].I.IO.dwBytes,
				cr->Card.Item[0].I.IO.dwBar);

				DPRINTF("-> hCard: %lu\n", cr->hCard);

#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				if (pport)
					pport->close(cr->hCard);

				pport = NULL;
#endif
			}
			break;

		case EVENT_PULL:
			DPRINTF("EVENT_PULL\n");
			{
				struct event *e = (struct event*)(wdheader->data);
#ifdef DEBUG
				int i;

				DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
				e->handle, e->dwAction, e->dwStatus,
				e->dwEventId, e->dwCardType, e->hKernelPlugIn,
				e->dwOptions, e->u.Usb.deviceId.dwVendorId,
				e->u.Usb.deviceId.dwProductId,
				e->u.Usb.dwUniqueID, e->dwEventVer,
				e->dwNumMatchTables);

				for (i = 0; i < e->dwNumMatchTables; i++)
					DPRINTF("-> match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
					e->matchTables[i].VendorId,
					e->matchTables[i].ProductId,
					e->matchTables[i].bDeviceClass,
					e->matchTables[i].bDeviceSubClass,
					e->matchTables[i].bInterfaceClass,
					e->matchTables[i].bInterfaceSubClass,
					e->matchTables[i].bInterfaceProtocol);
#endif

#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = xpcu_found(e);
#endif

#ifdef DEBUG
				DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n",
				e->handle, e->dwAction, e->dwStatus,
				e->dwEventId, e->dwCardType, e->hKernelPlugIn,
				e->dwOptions, e->u.Usb.deviceId.dwVendorId,
				e->u.Usb.deviceId.dwProductId,
				e->u.Usb.dwUniqueID, e->dwEventVer,
				e->dwNumMatchTables);

				for (i = 0; i < e->dwNumMatchTables; i++)
					DPRINTF("<- match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n",
					e->matchTables[i].VendorId,
					e->matchTables[i].ProductId,
					e->matchTables[i].bDeviceClass,
					e->matchTables[i].bDeviceSubClass,
					e->matchTables[i].bInterfaceClass,
					e->matchTables[i].bInterfaceSubClass,
					e->matchTables[i].bInterfaceProtocol);
#endif

			}
			break;

		default:
			fprintf(stderr,"!!!Unsupported IOCTL: %x!!!\n", request);
#ifndef NO_WINDRVR
			ret = (*ioctl_func) (fd, request, wdioctl);
#endif
			break;
	}

	return ret;
}

int ioctl(int fd, unsigned long int request, ...) {
	va_list args;
	void *argp;
	int i;

	if (!ioctl_func)                                                                    
		ioctl_func = (int (*) (int, int, void *)) dlsym (RTLD_NEXT, "ioctl");             

	va_start (args, request);
	argp = va_arg (args, void *);
	va_end (args);

	for (i = 0; i < windrvrfds_count; i++) {
		if (fd == windrvrfds[i])
			return do_wdioctl(fd, request, argp);
	}

	return (*ioctl_func) (fd, request, argp);
}

int open (const char *pathname, int flags, ...) {
	static int (*func) (const char *, int, mode_t) = NULL;
	mode_t mode = 0;
	va_list args;
	int fd;

	if (!func)
		func = (int (*) (const char *, int, mode_t)) dlsym (RTLD_NEXT, "open");

	if (flags & O_CREAT) {
		va_start(args, flags);
		mode = va_arg(args, mode_t);
		va_end(args);
	}

	if (!strcmp (pathname, "/dev/windrvr6")) {
		DPRINTF("opening windrvr6 (%d)\n", windrvrfds_count);
		windrvrfds = realloc(windrvrfds, sizeof(int) * (++windrvrfds_count));
		if (!windrvrfds)
			return -ENOMEM;

#ifdef NO_WINDRVR
		windrvrfds[windrvrfds_count-1] = fd = (*func) ("/dev/null", flags, mode);
#else
		windrvrfds[windrvrfds_count-1] = fd = (*func) (pathname, flags, mode);
#endif

		return fd;
	}

	return (*func) (pathname, flags, mode);
}

int close(int fd) {
	static int (*func) (int) = NULL;
	int i;

	if (!func)
		func = (int (*) (int)) dlsym(RTLD_NEXT, "close");
	
	for (i = 0; i < windrvrfds_count; i++) {
		if (fd == windrvrfds[i] && windrvrfds[i] >= 0) {
			int remaining = windrvrfds_count - (i + 1);
			DPRINTF("close windrvr6 (%d)\n", i);
			if (remaining)
				memmove(&(windrvrfds[i]), &(windrvrfds[i+1]), remaining * sizeof(int));
			windrvrfds = realloc(windrvrfds, sizeof(int) * --windrvrfds_count);
			if (!windrvrfds_count)
				windrvrfds = NULL;
			break;
		}
	}

	return (*func) (fd);
}

FILE *fopen(const char *path, const char *mode) {
	FILE *ret;
	static FILE* (*func) (const char*, const char*) = NULL;
	char buf[256];
	int i;

	if (!func)
		func = (FILE* (*) (const char*, const char*)) dlsym(RTLD_NEXT, "fopen");

	for (i = 0; i < 4; i++) {
		snprintf(buf, sizeof(buf), "/proc/sys/dev/parport/parport%d/base-addr", i);
		if (!strcmp(path, buf)) {
			DPRINTF("open base-addr of parport%d\n", i);
			if (config_is_real_pport(i)) {
				ret = (*func) (path, mode);
			} else {
				ret = (*func) ("/dev/null", mode);
			}

			if (ret) {
				baseaddrfp = ret;
				baseaddrnum = i;
			}

			return ret;
		}
	}

	ret = (*func) (path, mode);

	if (!strcmp(path, "/proc/modules")) {
		DPRINTF("opening /proc/modules\n");
		if (!ret && errno == ENOENT) {
			/* Hmm.. there appears to be no /proc/modules file
			 * fake it then */
			ret = (*func)("/dev/null", mode);
			DPRINTF("No /proc/modules -- faking\n");
		}
#ifdef NO_WINDRVR
		modulesfp = ret;
		modules_read = 0;
#endif
	}

	return ret;
}

char *fgets(char *s, int size, FILE *stream) {
        static char* (*func) (char*, int, FILE*) = NULL;
	const char modules[][256] = {"windrvr6 1 0 - Live 0xdeadbeef\n", "parport_pc 1 0 - Live 0xdeadbeef\n"};
	char buf[256];
	char *ret = NULL;


	if (!func)
		func = (char* (*) (char*, int, FILE*)) dlsym(RTLD_NEXT, "fgets");
	
	if (modulesfp == stream) {
		if (modules_read < sizeof(modules) / sizeof(modules[0])) {
			strcpy(s, modules[modules_read]);
			ret = s;
			modules_read++;
		}
	} else if (baseaddrfp == stream) {
		snprintf(s, sizeof(buf), "%d\t%d\n",
			(baseaddrnum) * 0x10,
			((baseaddrnum) * 0x10) + 0x400);
		ret = s;
	} else {
		ret = (*func)(s,size,stream);
	}

	return ret;
}

int fclose(FILE *fp) {
	static int (*func) (FILE*) = NULL;

	if (!func)
		func = (int (*) (FILE*)) dlsym(RTLD_NEXT, "fclose");

	if (fp == modulesfp) {
		modulesfp = NULL;
	}

	if (fp == baseaddrfp) {
		baseaddrfp = NULL;
	}
	
	return (*func)(fp);
}

int access(const char *pathname, int mode) {
	static int (*func) (const char*, int);

	if (!func)
		func = (int (*) (const char*, int)) dlsym(RTLD_NEXT, "access");

	if (pathname && !strcmp(pathname, "/dev/windrvr6")) {
		return 0;
	} else {
		return (*func)(pathname, mode);
	}
}

#if 0
/* USB cable sharing needs to overload semop, TODO! */
int semop (int __semid, struct sembuf *__sops, size_t __nsops) {
	static int (*func) (int, struct sembuf*, size_t) = NULL;
	int i;

	if (!func)
		func = (int (*) (int, struct sembuf*, size_t)) dlsym(RTLD_NEXT, "semop");
	
	fprintf(stderr,"semop: semid: 0x%X, elements: %d\n", __semid, __nsops);
	for (i = 0; i < __nsops; i++) {
		fprintf(stderr, " num: %u, op: %d, flg: %d\n", __sops[i].sem_num, __sops[i].sem_op, __sops[i].sem_flg);
		if (__sops[i].sem_op < 0) {
			fprintf(stderr, "SEMAPHORE LOCK\n");
		} else {
			fprintf(stderr, "SEMAPHORE UNLOCK\n");
		}
	}

	return (*func)(__semid, __sops, __nsops);
}
#endif

#if __WORDSIZE == 32
int uname (struct utsname *__name) {
	static int (*func) (struct utsname*);
	int ret;

	if (!func)
		func = (int (*) (struct utsname*)) dlsym(RTLD_NEXT, "uname");
	
	ret = (*func)(__name);

	if (ret == 0 && (!strcmp(__name->machine, "x86_64"))) {
		strcpy(__name->machine, "i686");
	}
	
	return ret;
}
#endif