ccid/src/ccid_usb.c

/*
    ccid_usb.c: USB access routines using the libusb library
    Copyright (C) 2003   Ludovic Rousseau

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/*
 * $Id$
 */

#define __CCID_USB__

#include <stdio.h>
#include <string.h> 
#include <errno.h>
#include <usb.h>

#include "pcscdefines.h"
#include "config.h"
#include "debug.h"
#include "utils.h"
#include "parser.h"
#include "ccid.h"


/* read timeout
 * we must wait enough so that the card can finish its calculation
 * the card, and then the reader should send TIME REQUEST bytes
 * so this timeout should never occur */
#define USB_READ_TIMEOUT (60 * 1000)    /* 1 minute timeout */

/* write timeout
 * we don't have to wait a long time since the card was doing nothing */
#define USB_WRITE_TIMEOUT (5 * 1000)  /* 5 seconds timeout */


#define BUS_DEVICE_STRSIZE 32

typedef struct
{
        usb_dev_handle *handle;
        struct usb_device *dev;

        /*
         * Used to store device name string %s/%s like:
         * 001/002 (Linux)
         * /dev/usb0//dev/ (FreeBSD)
         * /dev/usb0//dev/ugen0 (OpenBSD)
         */
        char device_name[BUS_DEVICE_STRSIZE];

        /*
         * Endpoints
         */
        int bulk_in;
        int bulk_out;

        /*
         * CCID infos common to USB and serial
         */
        _ccid_descriptor ccid;

} _usbDevice;

/* The _usbDevice structure must be defined before including ccid_usb.h */
#include "ccid_usb.h"

static _usbDevice usbDevice[PCSCLITE_MAX_READERS] = {
        [ 0 ... (PCSCLITE_MAX_READERS-1) ] = { NULL, NULL, "", 0, 0 }
};

#define PCSCLITE_MANUKEY_NAME                   "ifdVendorID"
#define PCSCLITE_PRODKEY_NAME                   "ifdProductID"
#define PCSCLITE_NAMEKEY_NAME                   "ifdFriendlyName"

/*****************************************************************************
 *
 *                                      OpenUSB
 *
 ****************************************************************************/
status_t OpenUSB(int lun, int Channel)
{
        static struct usb_bus *busses = NULL;
        int reader = LunToReaderIndex(lun);
        int alias = 0;
        struct usb_bus *bus;
        struct usb_dev_handle *dev_handle;
        char keyValue[TOKEN_MAX_VALUE_SIZE];
        int vendorID, productID;
        char infofile[FILENAME_MAX];

        DEBUG_COMM3("Lun: %X, Channel: %X", lun, Channel);

        if (busses == NULL)
                usb_init();

        usb_find_busses();
        usb_find_devices();

        busses = usb_get_busses();

        if (busses == NULL)
        {
                DEBUG_CRITICAL("No USB busses found");
                return STATUS_UNSUCCESSFUL;
        }

        /* is the lun already used? */
        if (usbDevice[reader].handle != NULL)
        {
                DEBUG_CRITICAL2("USB driver with lun %X already in use", lun);
                return STATUS_UNSUCCESSFUL;
        }

        /* Info.plist full patch filename */
        snprintf(infofile, sizeof(infofile), "%s/%s/Contents/Info.plist",
                PCSCLITE_HP_DROPDIR, BUNDLE);

        /* general driver info */
        if (!LTPBundleFindValueWithKey(infofile, "ifdManufacturerString", keyValue, 0))
                DEBUG_CRITICAL2("Manufacturer: %s", keyValue);
        else
        {
                DEBUG_CRITICAL2("LTPBundleFindValueWithKey error. Can't find %s?",
                        infofile);
                return STATUS_UNSUCCESSFUL;
        }
        if (!LTPBundleFindValueWithKey(infofile, "ifdProductString", keyValue, 0))
                DEBUG_CRITICAL2("ProductString: %s", keyValue);
        else
                return STATUS_UNSUCCESSFUL;
        if (!LTPBundleFindValueWithKey(infofile, "Copyright", keyValue, 0))
                DEBUG_CRITICAL2("Copyright: %s", keyValue);
        else
                return STATUS_UNSUCCESSFUL;
        vendorID = strlen(keyValue);
        alias = 0x1D;
        for (; vendorID--;)
                alias ^= keyValue[vendorID];

        /* for any supported reader */
        while (LTPBundleFindValueWithKey(infofile, PCSCLITE_MANUKEY_NAME, keyValue, alias) == 0)
        {
                vendorID = strtoul(keyValue, 0, 16);

                if (LTPBundleFindValueWithKey(infofile, PCSCLITE_PRODKEY_NAME, keyValue, alias))
                        goto end;
                productID = strtoul(keyValue, 0, 16);

                if (LTPBundleFindValueWithKey(infofile, PCSCLITE_NAMEKEY_NAME, keyValue, alias))
                        goto end;

                /* on any USB buses */
                for (bus = busses; bus; bus = bus->next)
                {
                        struct usb_device *dev;

                        /* any device on this bus */
                        for (dev = bus->devices; dev; dev = dev->next)
                        {
                                if (dev->descriptor.idVendor == vendorID
                                        && dev->descriptor.idProduct == productID)
                                {
                                        int r, already_used;
                                        char device_name[BUS_DEVICE_STRSIZE];

                                        if (snprintf(device_name, BUS_DEVICE_STRSIZE, "%s/%s",
                                                bus->dirname, dev->filename) < 0)
                                        {
                                                DEBUG_CRITICAL2("Device name too long: %s", device_name);
                                                return STATUS_UNSUCCESSFUL;
                                        }

                                        /* is it already opened? */
                                        already_used = FALSE;
                                        for (r=0; r<PCSCLITE_MAX_READERS; r++)
                                        {
                                                if (usbDevice[r].dev)
                                                {
                                                        DEBUG_COMM3("Checking new device '%s' against old '%s'",
                                                                device_name, usbDevice[r].device_name);
                                                        if (strcmp(usbDevice[r].device_name, device_name) == 0)
                                                                already_used = TRUE;
                                                }
                                        }

                                        if (!already_used)
                                        {
                                                DEBUG_COMM2("Trying to open USB bus/device: %s",
                                                         device_name);

                                                dev_handle = usb_open(dev);
                                                if (dev_handle)
                                                {
                                                        int interface;

                                                        if (dev->config == NULL)
                                                        {
                                                                DEBUG_CRITICAL2("No dev->config found for %s",
                                                                         device_name);
                                                                return STATUS_UNSUCCESSFUL;
                                                        }

                                                        if (dev->config->interface->altsetting->extralen != 54)
                                                        {
                                                                DEBUG_CRITICAL3("Extra field for %s has a wrong length: %d", device_name, dev->config->interface->altsetting->extralen);
                                                                return STATUS_UNSUCCESSFUL;
                                                        }

                                                        interface = dev->config->interface->altsetting->bInterfaceNumber;
                                                        if (usb_claim_interface(dev_handle, interface) < 0)
                                                        {
                                                                DEBUG_CRITICAL3("Can't claim interface %s: %s",
                                                                        device_name, strerror(errno));
                                                                return STATUS_UNSUCCESSFUL;
                                                        }

                                                        DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
                                                                dev->descriptor.idVendor,
                                                                dev->descriptor.idProduct, keyValue);
                                                        DEBUG_INFO2("Using USB bus/device: %s",
                                                                 device_name);

                                                        /* Get Endpoints values*/
                                                        get_end_points(dev, &usbDevice[reader]);

                                                        /* store device information */
                                                        usbDevice[reader].handle = dev_handle;
                                                        usbDevice[reader].dev = dev;
                                                        strncpy(usbDevice[reader].device_name,
                                                                device_name, BUS_DEVICE_STRSIZE);

                                                        /* CCID common informations */
                                                        usbDevice[reader].ccid.bSeq = 1;
                                                        usbDevice[reader].ccid.readerID =
                                                                (dev->descriptor.idVendor << 16) +
                                                                dev->descriptor.idProduct;
                                                        usbDevice[reader].ccid.dwFeatures = dw2i(dev->config->interface->altsetting->extra, 40);
                                                        usbDevice[reader].ccid.dwMaxCCIDMessageLength = dw2i(dev->config->interface->altsetting->extra, 44);

                                                        /* Maybe we have a special treatment
                                                         * for this reader */
                                                        ccid_open_hack(lun);

                                                        goto end;
                                                }
                                                else
                                                        DEBUG_CRITICAL3("Can't usb_open(%s): %s",
                                                                device_name,
                                                                strerror(errno));
                                        }
                                        else
                                        {
                                                DEBUG_INFO2("USB device %s already in use. Checking next one.",
                                                        device_name);
                                        }
                                }
                        }
                }

                /* go to next supported reader */
                alias++;
        }
end:
        if (usbDevice[reader].handle == NULL)
                return STATUS_UNSUCCESSFUL;

        return STATUS_SUCCESS;
} /* OpenUSB */


/*****************************************************************************
 *
 *                                      WriteUSB
 *
 ****************************************************************************/
status_t WriteUSB(int lun, int length, unsigned char *buffer)
{
        int rv;
        int reader = LunToReaderIndex(lun);
#ifdef DEBUG_LEVEL_COMM
        char debug_header[] = "-> 121234 ";

        sprintf(debug_header, "-> %06X ", (int)lun);
#endif

#ifdef DEBUG_LEVEL_COMM
        DEBUG_XXD(debug_header, buffer, length);
#endif

        rv = usb_bulk_write(usbDevice[reader].handle, usbDevice[reader].bulk_out, buffer, length, USB_WRITE_TIMEOUT);

        if (rv < 0)
        {
                DEBUG_CRITICAL3("usb_bulk_write(%s): %s",
                        usbDevice[reader].device_name, strerror(errno));
                return STATUS_UNSUCCESSFUL;
        }

        return STATUS_SUCCESS;
} /* WriteUSB */


/*****************************************************************************
 *
 *                                      ReadUSB
 *
 ****************************************************************************/
status_t ReadUSB(int lun, int * length, unsigned char *buffer)
{
        int rv;
        int reader = LunToReaderIndex(lun);
#ifdef DEBUG_LEVEL_COMM
        char debug_header[] = "<- 121234 ";

        sprintf(debug_header, "<- %06X ", (int)lun);
#endif


        rv = usb_bulk_read(usbDevice[reader].handle, usbDevice[reader].bulk_in, buffer, *length, USB_READ_TIMEOUT);
        *length = rv;

        if (rv < 0)
        {
                DEBUG_CRITICAL3("usb_bulk_read(%s): %s",
                        usbDevice[reader].device_name, strerror(errno));
                return STATUS_UNSUCCESSFUL;
        }

#ifdef DEBUG_LEVEL_COMM
        DEBUG_XXD(debug_header, buffer, *length);
#endif

        return STATUS_SUCCESS;
} /* ReadUSB */


/*****************************************************************************
 *
 *                                      CloseUSB
 *
 ****************************************************************************/
status_t CloseUSB(int lun)
{
        int reader = LunToReaderIndex(lun);

        /* device not opened */
        if (usbDevice[reader].dev == NULL)
                return STATUS_UNSUCCESSFUL;

        DEBUG_COMM2("Closing USB device: %s", usbDevice[reader].device_name);

        usb_release_interface(usbDevice[reader].handle, usbDevice[reader].dev->config->interface->altsetting->bInterfaceNumber);

        usb_close(usbDevice[reader].handle);

        /* mark the resource unused */
        usbDevice[reader].handle = NULL;
        usbDevice[reader].dev = NULL;
        usbDevice[reader].device_name[0] = '\0';

        return STATUS_SUCCESS;
} /* CloseUSB */


/*****************************************************************************
 *
 *                                      get_ccid_descriptor
 *
 ****************************************************************************/
_ccid_descriptor *get_ccid_descriptor(int lun)
{
        return &usbDevice[LunToReaderIndex(lun)].ccid;
} /* get_ccid_descriptor */


/*****************************************************************************
 *
 *                                      get_desc
 *
 ****************************************************************************/
int get_desc(int channel, char *device_name[], usb_dev_handle **handle, struct
        usb_device **dev)
{
        if (channel < 0 || channel > PCSCLITE_MAX_READERS)
                return 1;

        *device_name = usbDevice[channel].device_name;
        *handle = usbDevice[channel].handle;
        *dev = usbDevice[channel].dev;

        return 0;
} /* get_desc */

/*****************************************************************************
 *
 *                                      get_end_points
 *
 ****************************************************************************/
int get_end_points(struct usb_device *dev, _usbDevice *usb_device)
{
        int i;
        int bEndpointAddress;

        /*
         * 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out
         */
        for (i=0; i<3; i++)
        {
                if (dev->config->interface->altsetting->endpoint[i].bmAttributes != USB_ENDPOINT_TYPE_BULK)
                        continue;

                bEndpointAddress = dev->config->interface->altsetting->endpoint[i].bEndpointAddress;

                if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN)
                        usb_device->bulk_in = bEndpointAddress;

                if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT)
                        usb_device->bulk_out = bEndpointAddress;
        }

        return 0;
} /* get_end_points */

1	rousseau	269	/*
2			ccid_usb.c: USB access routines using the libusb library
3			Copyright (C) 2003 Ludovic Rousseau
4
5			This program is free software; you can redistribute it and/or modify
6			it under the terms of the GNU General Public License as published by
7			the Free Software Foundation; either version 2 of the License, or
8			(at your option) any later version.
9
10			This program is distributed in the hope that it will be useful,
11			but WITHOUT ANY WARRANTY; without even the implied warranty of
12			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			GNU General Public License for more details.
14
15			You should have received a copy of the GNU General Public License
16			along with this program; if not, write to the Free Software
17			Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18			*/
19
20			/*
21			* $Id$
22			*/
23
24			#define __CCID_USB__
25
26			#include <stdio.h>
27			#include <string.h>
28			#include <errno.h>
29			#include <usb.h>
30
31			#include "pcscdefines.h"
32			#include "config.h"
33			#include "debug.h"
34			#include "utils.h"
35			#include "parser.h"
36	rousseau	406	#include "ccid.h"
37	rousseau	269
38
39	rousseau	570	/* read timeout
40			* we must wait enough so that the card can finish its calculation
41			* the card, and then the reader should send TIME REQUEST bytes
42			* so this timeout should never occur */
43			#define USB_READ_TIMEOUT (60 * 1000) /* 1 minute timeout */
44	rousseau	269
45	rousseau	570	/* write timeout
46			* we don't have to wait a long time since the card was doing nothing */
47			#define USB_WRITE_TIMEOUT (5 * 1000) /* 5 seconds timeout */
48
49
50	rousseau	269	#define BUS_DEVICE_STRSIZE 32
51
52			typedef struct
53			{
54			usb_dev_handle *handle;
55			struct usb_device *dev;
56
57			/*
58			* Used to store device name string %s/%s like:
59			* 001/002 (Linux)
60			* /dev/usb0//dev/ (FreeBSD)
61			* /dev/usb0//dev/ugen0 (OpenBSD)
62			*/
63			char device_name[BUS_DEVICE_STRSIZE];
64
65			/*
66			* Endpoints
67			*/
68			int bulk_in;
69			int bulk_out;
70	rousseau	406
71			/*
72			* CCID infos common to USB and serial
73			*/
74			_ccid_descriptor ccid;
75
76	rousseau	269	} _usbDevice;
77
78	rousseau	406	/* The _usbDevice structure must be defined before including ccid_usb.h */
79	rousseau	269	#include "ccid_usb.h"
80
81	rousseau	406	static _usbDevice usbDevice[PCSCLITE_MAX_READERS] = {
82			[ 0 ... (PCSCLITE_MAX_READERS-1) ] = { NULL, NULL, "", 0, 0 }
83	rousseau	269	};
84
85			#define PCSCLITE_MANUKEY_NAME "ifdVendorID"
86			#define PCSCLITE_PRODKEY_NAME "ifdProductID"
87			#define PCSCLITE_NAMEKEY_NAME "ifdFriendlyName"
88
89			/*****************************************************************************
90			*
91			* OpenUSB
92			*
93			****************************************************************************/
94			status_t OpenUSB(int lun, int Channel)
95			{
96			static struct usb_bus *busses = NULL;
97			int reader = LunToReaderIndex(lun);
98			int alias = 0;
99			struct usb_bus *bus;
100			struct usb_dev_handle *dev_handle;
101			char keyValue[TOKEN_MAX_VALUE_SIZE];
102			int vendorID, productID;
103	rousseau	301	char infofile[FILENAME_MAX];
104	rousseau	269
105	rousseau	608	DEBUG_COMM3("Lun: %X, Channel: %X", lun, Channel);
106	rousseau	269
107			if (busses == NULL)
108			usb_init();
109
110			usb_find_busses();
111			usb_find_devices();
112
113			busses = usb_get_busses();
114
115			if (busses == NULL)
116			{
117			DEBUG_CRITICAL("No USB busses found");
118			return STATUS_UNSUCCESSFUL;
119			}
120
121			/* is the lun already used? */
122			if (usbDevice[reader].handle != NULL)
123			{
124			DEBUG_CRITICAL2("USB driver with lun %X already in use", lun);
125			return STATUS_UNSUCCESSFUL;
126			}
127
128	rousseau	301	/* Info.plist full patch filename */
129	rousseau	406	snprintf(infofile, sizeof(infofile), "%s/%s/Contents/Info.plist",
130			PCSCLITE_HP_DROPDIR, BUNDLE);
131	rousseau	301
132	rousseau	269	/* general driver info */
133	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "ifdManufacturerString", keyValue, 0))
134	rousseau	269	DEBUG_CRITICAL2("Manufacturer: %s", keyValue);
135			else
136			{
137			DEBUG_CRITICAL2("LTPBundleFindValueWithKey error. Can't find %s?",
138	rousseau	301	infofile);
139	rousseau	269	return STATUS_UNSUCCESSFUL;
140			}
141	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "ifdProductString", keyValue, 0))
142	rousseau	269	DEBUG_CRITICAL2("ProductString: %s", keyValue);
143			else
144			return STATUS_UNSUCCESSFUL;
145	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "Copyright", keyValue, 0))
146	rousseau	269	DEBUG_CRITICAL2("Copyright: %s", keyValue);
147			else
148			return STATUS_UNSUCCESSFUL;
149			vendorID = strlen(keyValue);
150			alias = 0x1D;
151			for (; vendorID--;)
152			alias ^= keyValue[vendorID];
153
154			/* for any supported reader */
155	rousseau	301	while (LTPBundleFindValueWithKey(infofile, PCSCLITE_MANUKEY_NAME, keyValue, alias) == 0)
156	rousseau	269	{
157	rousseau	301	vendorID = strtoul(keyValue, 0, 16);
158	rousseau	269
159	rousseau	301	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_PRODKEY_NAME, keyValue, alias))
160	rousseau	269	goto end;
161	rousseau	301	productID = strtoul(keyValue, 0, 16);
162	rousseau	269
163	rousseau	301	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_NAMEKEY_NAME, keyValue, alias))
164	rousseau	269	goto end;
165
166			/* on any USB buses */
167			for (bus = busses; bus; bus = bus->next)
168			{
169			struct usb_device *dev;
170
171			/* any device on this bus */
172			for (dev = bus->devices; dev; dev = dev->next)
173			{
174			if (dev->descriptor.idVendor == vendorID
175			&& dev->descriptor.idProduct == productID)
176			{
177			int r, already_used;
178			char device_name[BUS_DEVICE_STRSIZE];
179
180			if (snprintf(device_name, BUS_DEVICE_STRSIZE, "%s/%s",
181			bus->dirname, dev->filename) < 0)
182			{
183			DEBUG_CRITICAL2("Device name too long: %s", device_name);
184			return STATUS_UNSUCCESSFUL;
185			}
186
187			/* is it already opened? */
188			already_used = FALSE;
189	rousseau	406	for (r=0; r<PCSCLITE_MAX_READERS; r++)
190	rousseau	269	{
191			if (usbDevice[r].dev)
192			{
193			DEBUG_COMM3("Checking new device '%s' against old '%s'",
194			device_name, usbDevice[r].device_name);
195			if (strcmp(usbDevice[r].device_name, device_name) == 0)
196			already_used = TRUE;
197			}
198			}
199
200			if (!already_used)
201			{
202	rousseau	301	DEBUG_COMM2("Trying to open USB bus/device: %s",
203			device_name);
204
205	rousseau	269	dev_handle = usb_open(dev);
206			if (dev_handle)
207			{
208			int interface;
209
210			if (dev->config == NULL)
211			{
212	rousseau	301	DEBUG_CRITICAL2("No dev->config found for %s",
213			device_name);
214	rousseau	269	return STATUS_UNSUCCESSFUL;
215			}
216
217	rousseau	581	if (dev->config->interface->altsetting->extralen != 54)
218	rousseau	579	{
219	rousseau	581	DEBUG_CRITICAL3("Extra field for %s has a wrong length: %d", device_name, dev->config->interface->altsetting->extralen);
220	rousseau	579	return STATUS_UNSUCCESSFUL;
221			}
222
223	rousseau	269	interface = dev->config->interface->altsetting->bInterfaceNumber;
224			if (usb_claim_interface(dev_handle, interface) < 0)
225			{
226			DEBUG_CRITICAL3("Can't claim interface %s: %s",
227	rousseau	525	device_name, strerror(errno));
228	rousseau	269	return STATUS_UNSUCCESSFUL;
229			}
230
231			DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
232			dev->descriptor.idVendor,
233			dev->descriptor.idProduct, keyValue);
234	rousseau	301	DEBUG_INFO2("Using USB bus/device: %s",
235			device_name);
236	rousseau	269
237			/* Get Endpoints values*/
238			get_end_points(dev, &usbDevice[reader]);
239
240			/* store device information */
241			usbDevice[reader].handle = dev_handle;
242			usbDevice[reader].dev = dev;
243			strncpy(usbDevice[reader].device_name,
244			device_name, BUS_DEVICE_STRSIZE);
245
246	rousseau	406	/* CCID common informations */
247			usbDevice[reader].ccid.bSeq = 1;
248			usbDevice[reader].ccid.readerID =
249			(dev->descriptor.idVendor << 16) +
250			dev->descriptor.idProduct;
251			usbDevice[reader].ccid.dwFeatures = dw2i(dev->config->interface->altsetting->extra, 40);
252			usbDevice[reader].ccid.dwMaxCCIDMessageLength = dw2i(dev->config->interface->altsetting->extra, 44);
253
254			/* Maybe we have a special treatment
255			* for this reader */
256			ccid_open_hack(lun);
257
258	rousseau	269	goto end;
259			}
260			else
261	rousseau	301	DEBUG_CRITICAL3("Can't usb_open(%s): %s",
262			device_name,
263	rousseau	269	strerror(errno));
264			}
265			else
266			{
267			DEBUG_INFO2("USB device %s already in use. Checking next one.",
268			device_name);
269			}
270			}
271			}
272			}
273
274			/* go to next supported reader */
275			alias++;
276			}
277			end:
278			if (usbDevice[reader].handle == NULL)
279			return STATUS_UNSUCCESSFUL;
280
281			return STATUS_SUCCESS;
282			} /* OpenUSB */
283
284
285			/*****************************************************************************
286			*
287			* WriteUSB
288			*
289			****************************************************************************/
290			status_t WriteUSB(int lun, int length, unsigned char *buffer)
291			{
292			int rv;
293			int reader = LunToReaderIndex(lun);
294			#ifdef DEBUG_LEVEL_COMM
295			char debug_header[] = "-> 121234 ";
296
297			sprintf(debug_header, "-> %06X ", (int)lun);
298			#endif
299
300			#ifdef DEBUG_LEVEL_COMM
301			DEBUG_XXD(debug_header, buffer, length);
302			#endif
303
304	rousseau	570	rv = usb_bulk_write(usbDevice[reader].handle, usbDevice[reader].bulk_out, buffer, length, USB_WRITE_TIMEOUT);
305	rousseau	269
306			if (rv < 0)
307			{
308			DEBUG_CRITICAL3("usb_bulk_write(%s): %s",
309			usbDevice[reader].device_name, strerror(errno));
310			return STATUS_UNSUCCESSFUL;
311			}
312
313			return STATUS_SUCCESS;
314			} /* WriteUSB */
315
316
317			/*****************************************************************************
318			*
319			* ReadUSB
320			*
321			****************************************************************************/
322			status_t ReadUSB(int lun, int * length, unsigned char *buffer)
323			{
324			int rv;
325			int reader = LunToReaderIndex(lun);
326			#ifdef DEBUG_LEVEL_COMM
327			char debug_header[] = "<- 121234 ";
328
329			sprintf(debug_header, "<- %06X ", (int)lun);
330			#endif
331
332
333	rousseau	570	rv = usb_bulk_read(usbDevice[reader].handle, usbDevice[reader].bulk_in, buffer, *length, USB_READ_TIMEOUT);
334	rousseau	269	*length = rv;
335
336			if (rv < 0)
337			{
338			DEBUG_CRITICAL3("usb_bulk_read(%s): %s",
339			usbDevice[reader].device_name, strerror(errno));
340			return STATUS_UNSUCCESSFUL;
341			}
342
343			#ifdef DEBUG_LEVEL_COMM
344			DEBUG_XXD(debug_header, buffer, *length);
345			#endif
346
347			return STATUS_SUCCESS;
348			} /* ReadUSB */
349
350
351			/*****************************************************************************
352			*
353			* CloseUSB
354			*
355			****************************************************************************/
356			status_t CloseUSB(int lun)
357			{
358			int reader = LunToReaderIndex(lun);
359
360			/* device not opened */
361			if (usbDevice[reader].dev == NULL)
362			return STATUS_UNSUCCESSFUL;
363
364			DEBUG_COMM2("Closing USB device: %s", usbDevice[reader].device_name);
365
366			usb_release_interface(usbDevice[reader].handle, usbDevice[reader].dev->config->interface->altsetting->bInterfaceNumber);
367
368			usb_close(usbDevice[reader].handle);
369
370			/* mark the resource unused */
371			usbDevice[reader].handle = NULL;
372			usbDevice[reader].dev = NULL;
373			usbDevice[reader].device_name[0] = '\0';
374
375			return STATUS_SUCCESS;
376			} /* CloseUSB */
377
378
379	rousseau	301	/*****************************************************************************
380			*
381	rousseau	406	* get_ccid_descriptor
382	rousseau	301	*
383			****************************************************************************/
384	rousseau	406	_ccid_descriptor *get_ccid_descriptor(int lun)
385	rousseau	269	{
386	rousseau	406	return &usbDevice[LunToReaderIndex(lun)].ccid;
387			} /* get_ccid_descriptor */
388	rousseau	269
389
390	rousseau	301	/*****************************************************************************
391			*
392			* get_desc
393			*
394			****************************************************************************/
395	rousseau	269	int get_desc(int channel, char device_name[], usb_dev_handle *handle, struct
396			usb_device **dev)
397			{
398	rousseau	406	if (channel < 0 \|\| channel > PCSCLITE_MAX_READERS)
399	rousseau	269	return 1;
400
401			*device_name = usbDevice[channel].device_name;
402			*handle = usbDevice[channel].handle;
403			*dev = usbDevice[channel].dev;
404
405			return 0;
406			} /* get_desc */
407
408	rousseau	301	/*****************************************************************************
409			*
410			* get_end_points
411			*
412			****************************************************************************/
413	rousseau	269	int get_end_points(struct usb_device dev, _usbDevice usb_device)
414			{
415			int i;
416			int bEndpointAddress;
417
418			/*
419			* 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out
420			*/
421			for (i=0; i<3; i++)
422			{
423			if (dev->config->interface->altsetting->endpoint[i].bmAttributes != USB_ENDPOINT_TYPE_BULK)
424			continue;
425
426			bEndpointAddress = dev->config->interface->altsetting->endpoint[i].bEndpointAddress;
427
428			if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN)
429			usb_device->bulk_in = bEndpointAddress;
430
431			if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT)
432			usb_device->bulk_out = bEndpointAddress;
433			}
434
435			return 0;
436			} /* get_end_points */
437
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