usb-driver.c

Xilinx USB下载线 Linux驱动

/* libusb/ppdev connector for XILINX impact
 *
 * Copyright (c) 2007 Michael Gernoth <[e-mail]>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#define _GNU_SOURCE 1

#include <dlfcn.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <stdio.h>
#include <signal.h>
#include <errno.h>
#include <inttypes.h>
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <bits/wordsize.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include "usb-driver.h"
#include "config.h"
#include "xpcu.h"

static int (*ioctl_func) (int, int, void *) = NULL;
static int *windrvrfds = NULL;
static int windrvrfds_count = 0;
static unsigned long ppbase = 0;
static unsigned long ecpbase = 0;
static struct parport_config *pport = NULL;
static FILE *modulesfp = NULL;
static FILE *baseaddrfp = NULL;
static int baseaddrnum = 0;
static int modules_read = 0;

#define NO_WINDRVR 1

void hexdump(unsigned char *buf, int len, char *prefix) {
	int i;

	fprintf(stderr, "%s ", prefix);
	for(i=0; i<len; i++) {
		fprintf(stderr,"%02x ", buf[i]);
		if ((i % 16) == 15)
			fprintf(stderr,"\n%s ", prefix);
	}
	fprintf(stderr,"\n");
}


static int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) {
	struct header_struct* wdheader = (struct header_struct*)wdioctl;
	struct version_struct *version;
	int ret = 0;

	if (wdheader->magic != MAGIC) {
		fprintf(stderr,"!!!ERROR: magic header does not match!!!\n");
		return (*ioctl_func) (fd, request, wdioctl);
	}

	switch(request & ~(0xc0000000)) {
		case VERSION:
			version = (struct version_struct*)(wdheader->data);
			strcpy(version->version, "libusb-driver.so version: " USB_DRIVER_VERSION);
			version->versionul = 802;
			DPRINTF("VERSION\n");
			break;

		case LICENSE:
			DPRINTF("LICENSE\n");
			break;

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

				DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n",
				cr->Card.dwItems,
				(unsigned long)cr->Card.Item[0].I.IO.dwAddr,
				cr->Card.Item[0].I.IO.dwBytes,
				cr->Card.Item[0].I.IO.dwBar);
				
				DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n",
				cr->Card.dwItems,
				(unsigned long)cr->Card.Item[1].I.IO.dwAddr,
				cr->Card.Item[1].I.IO.dwBytes,
				cr->Card.Item[1].I.IO.dwBar);
#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else

				pport = config_get((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);
				if (!pport)
					break;

				ret = pport->open((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10);

				ppbase = (unsigned long)cr->Card.Item[0].I.IO.dwAddr;

				if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr)
					ecpbase = (unsigned long)cr->Card.Item[1].I.IO.dwAddr;

				if (ret >= 0) {
					cr->hCard = ret;
				} else {
					cr->hCard = 0;
				}
#endif
				DPRINTF("<-hCard: %lu\n", cr->hCard);
			}
			break;

		case USB_TRANSFER:
			DPRINTF("USB_TRANSFER\n");
			{
				struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data);

#ifdef DEBUG
				DPRINTF("-> unique: 0x%lx, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n",
				ut->dwUniqueID, ut->dwPipeNum, ut->fRead,
				ut->dwOptions, ut->dwBufferSize, ut->dwTimeout);
				if (ut->dwPipeNum == 0) {
					DPRINTF("-> setup packet:");
					hexdump(ut->SetupPacket, 8, "");
				}

				if (!ut->fRead && ut->dwBufferSize)
				{
					hexdump(ut->pBuffer, ut->dwBufferSize, "->");
				}
#endif

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

#ifdef DEBUG
				DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write"));
				if (ut->fRead && ut->dwBytesTransferred)
				{
					hexdump(ut->pBuffer, ut->dwBytesTransferred, "<-");
				}
#endif
			}
			break;

		case INT_ENABLE_OLD:
		case INT_ENABLE:
			DPRINTF("INT_ENABLE\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_state(it, ENABLE_INTERRUPT);
#endif

				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);
			}

			break;
			
		case INT_DISABLE:
			DPRINTF("INT_DISABLE\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_state(it, DISABLE_INTERRUPT);
#endif
				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);
			}
			break;

		case USB_SET_INTERFACE:
			DPRINTF("USB_SET_INTERFACE\n");
			{
				struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data);

				DPRINTF("-> unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
				usi->dwUniqueID, usi->dwInterfaceNum,
				usi->dwAlternateSetting, usi->dwOptions);
#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = xpcu_set_interface(usi);
#endif
				DPRINTF("<- unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n",
				usi->dwUniqueID, usi->dwInterfaceNum,
				usi->dwAlternateSetting, usi->dwOptions);
			}
			break;

		case USB_GET_DEVICE_DATA_OLD:
		case USB_GET_DEVICE_DATA:
			DPRINTF("USB_GET_DEVICE_DATA\n");
			{
				struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data);

				DPRINTF("-> unique: 0x%lx, bytes: %lu, options: %lx\n",
				ugdd->dwUniqueID, ugdd->dwBytes,
				ugdd->dwOptions);

				ret = xpcu_deviceinfo(ugdd);

			}
			break;

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

				DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, 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);

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

#ifdef DEBUG
				DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, 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;

		case TRANSFER_OLD:
		case TRANSFER:
			DPRINTF("TRANSFER\n");
			{
				WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data);

#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = pport->transfer(tr, fd, request, ppbase, ecpbase, 1);
#endif
			}
			break;

		case MULTI_TRANSFER_OLD:
		case MULTI_TRANSFER:
			DPRINTF("MULTI_TRANSFER\n");
			{
				WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data);
				unsigned long num = wdheader->size/sizeof(WD_TRANSFER);
#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = pport->transfer(tr, fd, request, ppbase, ecpbase, num);
#endif
			}
			break;

		case EVENT_UNREGISTER:
			{
				struct event *e = (struct event*)(wdheader->data);

				DPRINTF("EVENT_UNREGISTER\n");
#ifndef NO_WINDRVR
				ret = (*ioctl_func) (fd, request, wdioctl);
#else
				ret = xpcu_close(e);
#endif