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("OpenUSB: 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;
                                                        }

                                                        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			DEBUG_COMM3("OpenUSB: Lun: %X, Channel: %X", lun, Channel);
106
107			if (busses == NULL)
108			{
109			usb_init();
110			}
111
112			usb_find_busses();
113			usb_find_devices();
114
115			busses = usb_get_busses();
116
117			if (busses == NULL)
118			{
119			DEBUG_CRITICAL("No USB busses found");
120			return STATUS_UNSUCCESSFUL;
121			}
122
123			/* is the lun already used? */
124			if (usbDevice[reader].handle != NULL)
125			{
126			DEBUG_CRITICAL2("USB driver with lun %X already in use", lun);
127			return STATUS_UNSUCCESSFUL;
128			}
129
130	rousseau	301	/* Info.plist full patch filename */
131	rousseau	406	snprintf(infofile, sizeof(infofile), "%s/%s/Contents/Info.plist",
132			PCSCLITE_HP_DROPDIR, BUNDLE);
133	rousseau	301
134	rousseau	269	/* general driver info */
135	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "ifdManufacturerString", keyValue, 0))
136	rousseau	269	DEBUG_CRITICAL2("Manufacturer: %s", keyValue);
137			else
138			{
139			DEBUG_CRITICAL2("LTPBundleFindValueWithKey error. Can't find %s?",
140	rousseau	301	infofile);
141	rousseau	269	return STATUS_UNSUCCESSFUL;
142			}
143	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "ifdProductString", keyValue, 0))
144	rousseau	269	DEBUG_CRITICAL2("ProductString: %s", keyValue);
145			else
146			return STATUS_UNSUCCESSFUL;
147	rousseau	301	if (!LTPBundleFindValueWithKey(infofile, "Copyright", keyValue, 0))
148	rousseau	269	DEBUG_CRITICAL2("Copyright: %s", keyValue);
149			else
150			return STATUS_UNSUCCESSFUL;
151			vendorID = strlen(keyValue);
152			alias = 0x1D;
153			for (; vendorID--;)
154			alias ^= keyValue[vendorID];
155
156			/* for any supported reader */
157	rousseau	301	while (LTPBundleFindValueWithKey(infofile, PCSCLITE_MANUKEY_NAME, keyValue, alias) == 0)
158	rousseau	269	{
159	rousseau	301	vendorID = strtoul(keyValue, 0, 16);
160	rousseau	269
161	rousseau	301	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_PRODKEY_NAME, keyValue, alias))
162	rousseau	269	goto end;
163	rousseau	301	productID = strtoul(keyValue, 0, 16);
164	rousseau	269
165	rousseau	301	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_NAMEKEY_NAME, keyValue, alias))
166	rousseau	269	goto end;
167
168			/* on any USB buses */
169			for (bus = busses; bus; bus = bus->next)
170			{
171			struct usb_device *dev;
172
173			/* any device on this bus */
174			for (dev = bus->devices; dev; dev = dev->next)
175			{
176			if (dev->descriptor.idVendor == vendorID
177			&& dev->descriptor.idProduct == productID)
178			{
179			int r, already_used;
180			char device_name[BUS_DEVICE_STRSIZE];
181
182			if (snprintf(device_name, BUS_DEVICE_STRSIZE, "%s/%s",
183			bus->dirname, dev->filename) < 0)
184			{
185			DEBUG_CRITICAL2("Device name too long: %s", device_name);
186			return STATUS_UNSUCCESSFUL;
187			}
188
189			/* is it already opened? */
190			already_used = FALSE;
191	rousseau	406	for (r=0; r<PCSCLITE_MAX_READERS; r++)
192	rousseau	269	{
193			if (usbDevice[r].dev)
194			{
195			DEBUG_COMM3("Checking new device '%s' against old '%s'",
196			device_name, usbDevice[r].device_name);
197			if (strcmp(usbDevice[r].device_name, device_name) == 0)
198			already_used = TRUE;
199			}
200			}
201
202			if (!already_used)
203			{
204	rousseau	301	DEBUG_COMM2("Trying to open USB bus/device: %s",
205			device_name);
206
207	rousseau	269	dev_handle = usb_open(dev);
208			if (dev_handle)
209			{
210			int interface;
211
212			if (dev->config == NULL)
213			{
214	rousseau	301	DEBUG_CRITICAL2("No dev->config found for %s",
215			device_name);
216	rousseau	269	return STATUS_UNSUCCESSFUL;
217			}
218
219			interface = dev->config->interface->altsetting->bInterfaceNumber;
220			if (usb_claim_interface(dev_handle, interface) < 0)
221			{
222			DEBUG_CRITICAL3("Can't claim interface %s: %s",
223	rousseau	525	device_name, strerror(errno));
224	rousseau	269	return STATUS_UNSUCCESSFUL;
225			}
226
227			DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
228			dev->descriptor.idVendor,
229			dev->descriptor.idProduct, keyValue);
230	rousseau	301	DEBUG_INFO2("Using USB bus/device: %s",
231			device_name);
232	rousseau	269
233			/* Get Endpoints values*/
234			get_end_points(dev, &usbDevice[reader]);
235
236			/* store device information */
237			usbDevice[reader].handle = dev_handle;
238			usbDevice[reader].dev = dev;
239			strncpy(usbDevice[reader].device_name,
240			device_name, BUS_DEVICE_STRSIZE);
241
242	rousseau	406	/* CCID common informations */
243			usbDevice[reader].ccid.bSeq = 1;
244			usbDevice[reader].ccid.readerID =
245			(dev->descriptor.idVendor << 16) +
246			dev->descriptor.idProduct;
247			usbDevice[reader].ccid.dwFeatures = dw2i(dev->config->interface->altsetting->extra, 40);
248			usbDevice[reader].ccid.dwMaxCCIDMessageLength = dw2i(dev->config->interface->altsetting->extra, 44);
249
250			/* Maybe we have a special treatment
251			* for this reader */
252			ccid_open_hack(lun);
253
254	rousseau	269	goto end;
255			}
256			else
257	rousseau	301	DEBUG_CRITICAL3("Can't usb_open(%s): %s",
258			device_name,
259	rousseau	269	strerror(errno));
260			}
261			else
262			{
263			DEBUG_INFO2("USB device %s already in use. Checking next one.",
264			device_name);
265			}
266			}
267			}
268			}
269
270			/* go to next supported reader */
271			alias++;
272			}
273			end:
274			if (usbDevice[reader].handle == NULL)
275			return STATUS_UNSUCCESSFUL;
276
277			return STATUS_SUCCESS;
278			} /* OpenUSB */
279
280
281			/*****************************************************************************
282			*
283			* WriteUSB
284			*
285			****************************************************************************/
286			status_t WriteUSB(int lun, int length, unsigned char *buffer)
287			{
288			int rv;
289			int reader = LunToReaderIndex(lun);
290			#ifdef DEBUG_LEVEL_COMM
291			char debug_header[] = "-> 121234 ";
292
293			sprintf(debug_header, "-> %06X ", (int)lun);
294			#endif
295
296			#ifdef DEBUG_LEVEL_COMM
297			DEBUG_XXD(debug_header, buffer, length);
298			#endif
299
300	rousseau	570	rv = usb_bulk_write(usbDevice[reader].handle, usbDevice[reader].bulk_out, buffer, length, USB_WRITE_TIMEOUT);
301	rousseau	269
302			if (rv < 0)
303			{
304			DEBUG_CRITICAL3("usb_bulk_write(%s): %s",
305			usbDevice[reader].device_name, strerror(errno));
306			return STATUS_UNSUCCESSFUL;
307			}
308
309			return STATUS_SUCCESS;
310			} /* WriteUSB */
311
312
313			/*****************************************************************************
314			*
315			* ReadUSB
316			*
317			****************************************************************************/
318			status_t ReadUSB(int lun, int * length, unsigned char *buffer)
319			{
320			int rv;
321			int reader = LunToReaderIndex(lun);
322			#ifdef DEBUG_LEVEL_COMM
323			char debug_header[] = "<- 121234 ";
324
325			sprintf(debug_header, "<- %06X ", (int)lun);
326			#endif
327
328
329	rousseau	570	rv = usb_bulk_read(usbDevice[reader].handle, usbDevice[reader].bulk_in, buffer, *length, USB_READ_TIMEOUT);
330	rousseau	269	*length = rv;
331
332			if (rv < 0)
333			{
334			DEBUG_CRITICAL3("usb_bulk_read(%s): %s",
335			usbDevice[reader].device_name, strerror(errno));
336			return STATUS_UNSUCCESSFUL;
337			}
338
339			#ifdef DEBUG_LEVEL_COMM
340			DEBUG_XXD(debug_header, buffer, *length);
341			#endif
342
343			return STATUS_SUCCESS;
344			} /* ReadUSB */
345
346
347			/*****************************************************************************
348			*
349			* CloseUSB
350			*
351			****************************************************************************/
352			status_t CloseUSB(int lun)
353			{
354			int reader = LunToReaderIndex(lun);
355
356			/* device not opened */
357			if (usbDevice[reader].dev == NULL)
358			return STATUS_UNSUCCESSFUL;
359
360			DEBUG_COMM2("Closing USB device: %s", usbDevice[reader].device_name);
361
362			usb_release_interface(usbDevice[reader].handle, usbDevice[reader].dev->config->interface->altsetting->bInterfaceNumber);
363
364			usb_close(usbDevice[reader].handle);
365
366			/* mark the resource unused */
367			usbDevice[reader].handle = NULL;
368			usbDevice[reader].dev = NULL;
369			usbDevice[reader].device_name[0] = '\0';
370
371			return STATUS_SUCCESS;
372			} /* CloseUSB */
373
374
375	rousseau	301	/*****************************************************************************
376			*
377	rousseau	406	* get_ccid_descriptor
378	rousseau	301	*
379			****************************************************************************/
380	rousseau	406	_ccid_descriptor *get_ccid_descriptor(int lun)
381	rousseau	269	{
382	rousseau	406	return &usbDevice[LunToReaderIndex(lun)].ccid;
383			} /* get_ccid_descriptor */
384	rousseau	269
385
386	rousseau	301	/*****************************************************************************
387			*
388			* get_desc
389			*
390			****************************************************************************/
391	rousseau	269	int get_desc(int channel, char device_name[], usb_dev_handle *handle, struct
392			usb_device **dev)
393			{
394	rousseau	406	if (channel < 0 \|\| channel > PCSCLITE_MAX_READERS)
395	rousseau	269	return 1;
396
397			*device_name = usbDevice[channel].device_name;
398			*handle = usbDevice[channel].handle;
399			*dev = usbDevice[channel].dev;
400
401			return 0;
402			} /* get_desc */
403
404	rousseau	301	/*****************************************************************************
405			*
406			* get_end_points
407			*
408			****************************************************************************/
409	rousseau	269	int get_end_points(struct usb_device dev, _usbDevice usb_device)
410			{
411			int i;
412			int bEndpointAddress;
413
414			/*
415			* 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out
416			*/
417			for (i=0; i<3; i++)
418			{
419			if (dev->config->interface->altsetting->endpoint[i].bmAttributes != USB_ENDPOINT_TYPE_BULK)
420			continue;
421
422			bEndpointAddress = dev->config->interface->altsetting->endpoint[i].bEndpointAddress;
423
424			if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN)
425			usb_device->bulk_in = bEndpointAddress;
426
427			if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT)
428			usb_device->bulk_out = bEndpointAddress;
429			}
430
431			return 0;
432			} /* get_end_points */
433
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