ccid/src/ccid_usb.c

/*
    ccid_usb.c: USB access routines using the libusb library
    Copyright (C) 2003-2004   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;

        /*
         * 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)
{
        return OpenUSBByName(lun, NULL);
} /* OpenUSB */


/*****************************************************************************
 *
 *                                      OpenUSBByName
 *
 ****************************************************************************/
status_t OpenUSBByName(int lun, char *device)
{
        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];
        int device_vendor, device_product;

        DEBUG_COMM3("Lun: %X, Device: %s", lun, device);

        /* device name specified */
        if (device)
        {
                if (strncmp("usb:", device, 4) != 0)
                {
                        DEBUG_CRITICAL2("device name does not start with \"usb:\": %s",
                                device);
                        return STATUS_UNSUCCESSFUL;
                }

                if (sscanf(device, "usb:%x/%x", &device_vendor, &device_product) != 2)
                {
                        DEBUG_CRITICAL2("device name can't be parsed: %s", device);
                        return STATUS_UNSUCCESSFUL;
                }

        printf("%x %x\n", device_vendor, device_product);
        }

        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;

                /* go to next supported reader for next round */
                alias++;

                /* the device was specified but is not the one we are trying to find */
                if (device
                        && (vendorID != device_vendor || productID != device_product))
                        continue;

                /* 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;
                                        struct usb_interface *usb_interface = NULL;
                                        int interface;

                                        /* is it already opened? */
                                        already_used = FALSE;

                                        for (r=0; r<PCSCLITE_MAX_READERS; r++)
                                        {
                                                if (usbDevice[r].dev)
                                                {
                                                        DEBUG_COMM3("Checking device: %s/%s",
                                                                bus->dirname, dev->filename);
                                                        /* same busname, same filename */
                                                        if (strcmp(usbDevice[r].dev->bus->dirname, bus->dirname) == 0 && strcmp(usbDevice[r].dev->filename, dev->filename) == 0)
                                                                already_used = TRUE;
                                                }
                                        }

                                        /* this reader is already managed by us */
                                        if (already_used)
                                        {
                                                DEBUG_INFO3("USB device %s/%s already in use. Checking next one.",
                                                        bus->dirname, dev->filename);

                                                continue;
                                        }

                                        DEBUG_COMM3("Trying to open USB bus/device: %s/%s",
                                                 bus->dirname, dev->filename);

                                        dev_handle = usb_open(dev);
                                        if (dev_handle == NULL)
                                        {
                                                DEBUG_CRITICAL4("Can't usb_open(%s/%s): %s",
                                                        bus->dirname, dev->filename, strerror(errno));

                                                continue;
                                        }

                                        /* now we found a free reader and we try to use it */
                                        if (dev->config == NULL)
                                        {
                                                DEBUG_CRITICAL3("No dev->config found for %s/%s",
                                                         bus->dirname, dev->filename);
                                                return STATUS_UNSUCCESSFUL;
                                        }

                                        usb_interface = get_ccid_usb_interface(dev);
                                        if (usb_interface == NULL)
                                        {
                                                DEBUG_CRITICAL3("Can't find a CCID interface on %s/%s",
                                                        bus->dirname, dev->filename);
                                                return STATUS_UNSUCCESSFUL;
                                        }                       

                                        if (usb_interface->altsetting->extralen != 54)
                                        {
                                                DEBUG_CRITICAL4("Extra field for %s/%s has a wrong length: %d", bus->dirname, dev->filename, usb_interface->altsetting->extralen);
                                                return STATUS_UNSUCCESSFUL;
                                        }

                                        interface = usb_interface->altsetting->bInterfaceNumber;
                                        if (usb_claim_interface(dev_handle, interface) < 0)
                                        {
                                                DEBUG_CRITICAL4("Can't claim interface %s/%s: %s",
                                                        bus->dirname, dev->filename, strerror(errno));
                                                return STATUS_UNSUCCESSFUL;
                                        }

                                        DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
                                                dev->descriptor.idVendor,
                                                dev->descriptor.idProduct, keyValue);
                                        DEBUG_INFO3("Using USB bus/device: %s/%s",
                                                 bus->dirname, dev->filename);

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

                                        /* store device information */
                                        usbDevice[reader].handle = dev_handle;
                                        usbDevice[reader].dev = dev;

                                        /* CCID common informations */
                                        usbDevice[reader].ccid.bSeq = 1;
                                        usbDevice[reader].ccid.readerID =
                                                (dev->descriptor.idVendor << 16) +
                                                dev->descriptor.idProduct;
                                        usbDevice[reader].ccid.dwFeatures = dw2i(usb_interface->altsetting->extra, 40);
                                        usbDevice[reader].ccid.dwMaxCCIDMessageLength = dw2i(usb_interface->altsetting->extra, 44);
                                        usbDevice[reader].ccid.dwMaxIFSD = dw2i(usb_interface->altsetting->extra, 28);

                                        goto end;
                                }
                        }
                }
        }
end:
        if (usbDevice[reader].handle == NULL)
                return STATUS_UNSUCCESSFUL;

        return STATUS_SUCCESS;
} /* OpenUSBByName */


/*****************************************************************************
 *
 *                                      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_CRITICAL4("usb_bulk_write(%s/%s): %s",
                        usbDevice[reader].dev->bus->dirname,
                        usbDevice[reader].dev->filename, 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_CRITICAL4("usb_bulk_read(%s/%s): %s",
                        usbDevice[reader].dev->bus->dirname,
                        usbDevice[reader].dev->filename, 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)
{
        struct usb_interface *usb_interface;
        int interface;
        int reader = LunToReaderIndex(lun);

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

        DEBUG_COMM3("Closing USB device: %s/%s",
                usbDevice[reader].dev->bus->dirname, usbDevice[reader].dev->filename);

        usb_interface = get_ccid_usb_interface(usbDevice[reader].dev);
        interface = usb_interface ?
                usb_interface->altsetting->bInterfaceNumber :
                usbDevice[reader].dev->config->interface->altsetting->bInterfaceNumber;
        
        usb_release_interface(usbDevice[reader].handle, interface);

        usb_reset(usbDevice[reader].handle);
        usb_close(usbDevice[reader].handle);

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

        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, usb_dev_handle **handle, struct
        usb_device **dev)
{
        if (channel < 0 || channel > PCSCLITE_MAX_READERS)
                return 1;

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

                bEndpointAddress = usb_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 */


/*****************************************************************************
 *
 *                                      get_ccid_usb_interface
 *
 ****************************************************************************/
struct usb_interface * get_ccid_usb_interface(struct usb_device *dev)
{
        struct usb_interface *usb_interface = NULL; 

        /* if multiple interfaces use the first one with CCID class type */
        if (dev->config->bNumInterfaces > 1)
        {
                int ii;
                for (ii=0; ii<dev->config->bNumInterfaces; ii++)
                {
                        if (dev->config->interface[ii].altsetting->bInterfaceClass == 0xb)
                        {
                                usb_interface = &dev->config->interface[ii];
                                break;
                        }
                }
        }
        else
                /* we keep this in case a reader reports a bad class value */
                usb_interface = dev->config->interface;

        return usb_interface;
} /* get_ccid_usb_interface */

1	/*
2	ccid_usb.c: USB access routines using the libusb library
3	Copyright (C) 2003-2004 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	#include "ccid.h"
37
38
39	/* 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
45	/* 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	#define BUS_DEVICE_STRSIZE 32
51
52	typedef struct
53	{
54	usb_dev_handle *handle;
55	struct usb_device *dev;
56
57	/*
58	* Endpoints
59	*/
60	int bulk_in;
61	int bulk_out;
62
63	/*
64	* CCID infos common to USB and serial
65	*/
66	_ccid_descriptor ccid;
67
68	} _usbDevice;
69
70	/* The _usbDevice structure must be defined before including ccid_usb.h */
71	#include "ccid_usb.h"
72
73	static _usbDevice usbDevice[PCSCLITE_MAX_READERS] = {
74	[ 0 ... (PCSCLITE_MAX_READERS-1) ] = { NULL, NULL, 0, 0 }
75	};
76
77	#define PCSCLITE_MANUKEY_NAME "ifdVendorID"
78	#define PCSCLITE_PRODKEY_NAME "ifdProductID"
79	#define PCSCLITE_NAMEKEY_NAME "ifdFriendlyName"
80
81
82	/*****************************************************************************
83	*
84	* OpenUSB
85	*
86	****************************************************************************/
87	status_t OpenUSB(int lun, int Channel)
88	{
89	return OpenUSBByName(lun, NULL);
90	} /* OpenUSB */
91
92
93	/*****************************************************************************
94	*
95	* OpenUSBByName
96	*
97	****************************************************************************/
98	status_t OpenUSBByName(int lun, char *device)
99	{
100	static struct usb_bus *busses = NULL;
101	int reader = LunToReaderIndex(lun);
102	int alias = 0;
103	struct usb_bus *bus;
104	struct usb_dev_handle *dev_handle;
105	char keyValue[TOKEN_MAX_VALUE_SIZE];
106	int vendorID, productID;
107	char infofile[FILENAME_MAX];
108	int device_vendor, device_product;
109
110	DEBUG_COMM3("Lun: %X, Device: %s", lun, device);
111
112	/* device name specified */
113	if (device)
114	{
115	if (strncmp("usb:", device, 4) != 0)
116	{
117	DEBUG_CRITICAL2("device name does not start with \"usb:\": %s",
118	device);
119	return STATUS_UNSUCCESSFUL;
120	}
121
122	if (sscanf(device, "usb:%x/%x", &device_vendor, &device_product) != 2)
123	{
124	DEBUG_CRITICAL2("device name can't be parsed: %s", device);
125	return STATUS_UNSUCCESSFUL;
126	}
127
128	printf("%x %x\n", device_vendor, device_product);
129	}
130
131	if (busses == NULL)
132	usb_init();
133
134	usb_find_busses();
135	usb_find_devices();
136
137	busses = usb_get_busses();
138
139	if (busses == NULL)
140	{
141	DEBUG_CRITICAL("No USB busses found");
142	return STATUS_UNSUCCESSFUL;
143	}
144
145	/* is the lun already used? */
146	if (usbDevice[reader].handle != NULL)
147	{
148	DEBUG_CRITICAL2("USB driver with lun %X already in use", lun);
149	return STATUS_UNSUCCESSFUL;
150	}
151
152	/* Info.plist full patch filename */
153	snprintf(infofile, sizeof(infofile), "%s/%s/Contents/Info.plist",
154	PCSCLITE_HP_DROPDIR, BUNDLE);
155
156	/* general driver info */
157	if (!LTPBundleFindValueWithKey(infofile, "ifdManufacturerString", keyValue, 0))
158	DEBUG_CRITICAL2("Manufacturer: %s", keyValue);
159	else
160	{
161	DEBUG_CRITICAL2("LTPBundleFindValueWithKey error. Can't find %s?",
162	infofile);
163	return STATUS_UNSUCCESSFUL;
164	}
165	if (!LTPBundleFindValueWithKey(infofile, "ifdProductString", keyValue, 0))
166	DEBUG_CRITICAL2("ProductString: %s", keyValue);
167	else
168	return STATUS_UNSUCCESSFUL;
169	if (!LTPBundleFindValueWithKey(infofile, "Copyright", keyValue, 0))
170	DEBUG_CRITICAL2("Copyright: %s", keyValue);
171	else
172	return STATUS_UNSUCCESSFUL;
173	vendorID = strlen(keyValue);
174	alias = 0x1D;
175	for (; vendorID--;)
176	alias ^= keyValue[vendorID];
177
178	/* for any supported reader */
179	while (LTPBundleFindValueWithKey(infofile, PCSCLITE_MANUKEY_NAME, keyValue, alias) == 0)
180	{
181	vendorID = strtoul(keyValue, 0, 16);
182
183	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_PRODKEY_NAME, keyValue, alias))
184	goto end;
185	productID = strtoul(keyValue, 0, 16);
186
187	if (LTPBundleFindValueWithKey(infofile, PCSCLITE_NAMEKEY_NAME, keyValue, alias))
188	goto end;
189
190	/* go to next supported reader for next round */
191	alias++;
192
193	/* the device was specified but is not the one we are trying to find */
194	if (device
195	&& (vendorID != device_vendor \|\| productID != device_product))
196	continue;
197
198	/* on any USB buses */
199	for (bus = busses; bus; bus = bus->next)
200	{
201	struct usb_device *dev;
202
203	/* any device on this bus */
204	for (dev = bus->devices; dev; dev = dev->next)
205	{
206	if (dev->descriptor.idVendor == vendorID
207	&& dev->descriptor.idProduct == productID)
208	{
209	int r, already_used;
210	struct usb_interface *usb_interface = NULL;
211	int interface;
212
213	/* is it already opened? */
214	already_used = FALSE;
215
216	for (r=0; r<PCSCLITE_MAX_READERS; r++)
217	{
218	if (usbDevice[r].dev)
219	{
220	DEBUG_COMM3("Checking device: %s/%s",
221	bus->dirname, dev->filename);
222	/* same busname, same filename */
223	if (strcmp(usbDevice[r].dev->bus->dirname, bus->dirname) == 0 && strcmp(usbDevice[r].dev->filename, dev->filename) == 0)
224	already_used = TRUE;
225	}
226	}
227
228	/* this reader is already managed by us */
229	if (already_used)
230	{
231	DEBUG_INFO3("USB device %s/%s already in use. Checking next one.",
232	bus->dirname, dev->filename);
233
234	continue;
235	}
236
237	DEBUG_COMM3("Trying to open USB bus/device: %s/%s",
238	bus->dirname, dev->filename);
239
240	dev_handle = usb_open(dev);
241	if (dev_handle == NULL)
242	{
243	DEBUG_CRITICAL4("Can't usb_open(%s/%s): %s",
244	bus->dirname, dev->filename, strerror(errno));
245
246	continue;
247	}
248
249	/* now we found a free reader and we try to use it */
250	if (dev->config == NULL)
251	{
252	DEBUG_CRITICAL3("No dev->config found for %s/%s",
253	bus->dirname, dev->filename);
254	return STATUS_UNSUCCESSFUL;
255	}
256
257	usb_interface = get_ccid_usb_interface(dev);
258	if (usb_interface == NULL)
259	{
260	DEBUG_CRITICAL3("Can't find a CCID interface on %s/%s",
261	bus->dirname, dev->filename);
262	return STATUS_UNSUCCESSFUL;
263	}
264
265	if (usb_interface->altsetting->extralen != 54)
266	{
267	DEBUG_CRITICAL4("Extra field for %s/%s has a wrong length: %d", bus->dirname, dev->filename, usb_interface->altsetting->extralen);
268	return STATUS_UNSUCCESSFUL;
269	}
270
271	interface = usb_interface->altsetting->bInterfaceNumber;
272	if (usb_claim_interface(dev_handle, interface) < 0)
273	{
274	DEBUG_CRITICAL4("Can't claim interface %s/%s: %s",
275	bus->dirname, dev->filename, strerror(errno));
276	return STATUS_UNSUCCESSFUL;
277	}
278
279	DEBUG_INFO4("Found Vendor/Product: %04X/%04X (%s)",
280	dev->descriptor.idVendor,
281	dev->descriptor.idProduct, keyValue);
282	DEBUG_INFO3("Using USB bus/device: %s/%s",
283	bus->dirname, dev->filename);
284
285	/* Get Endpoints values*/
286	get_end_points(dev, &usbDevice[reader]);
287
288	/* store device information */
289	usbDevice[reader].handle = dev_handle;
290	usbDevice[reader].dev = dev;
291
292	/* CCID common informations */
293	usbDevice[reader].ccid.bSeq = 1;
294	usbDevice[reader].ccid.readerID =
295	(dev->descriptor.idVendor << 16) +
296	dev->descriptor.idProduct;
297	usbDevice[reader].ccid.dwFeatures = dw2i(usb_interface->altsetting->extra, 40);
298	usbDevice[reader].ccid.dwMaxCCIDMessageLength = dw2i(usb_interface->altsetting->extra, 44);
299	usbDevice[reader].ccid.dwMaxIFSD = dw2i(usb_interface->altsetting->extra, 28);
300
301	goto end;
302	}
303	}
304	}
305	}
306	end:
307	if (usbDevice[reader].handle == NULL)
308	return STATUS_UNSUCCESSFUL;
309
310	return STATUS_SUCCESS;
311	} /* OpenUSBByName */
312
313
314	/*****************************************************************************
315	*
316	* WriteUSB
317	*
318	****************************************************************************/
319	status_t WriteUSB(int lun, int length, unsigned char *buffer)
320	{
321	int rv;
322	int reader = LunToReaderIndex(lun);
323	#ifdef DEBUG_LEVEL_COMM
324	char debug_header[] = "-> 121234 ";
325
326	sprintf(debug_header, "-> %06X ", (int)lun);
327	#endif
328
329	#ifdef DEBUG_LEVEL_COMM
330	DEBUG_XXD(debug_header, buffer, length);
331	#endif
332
333	rv = usb_bulk_write(usbDevice[reader].handle, usbDevice[reader].bulk_out, buffer, length, USB_WRITE_TIMEOUT);
334
335	if (rv < 0)
336	{
337	DEBUG_CRITICAL4("usb_bulk_write(%s/%s): %s",
338	usbDevice[reader].dev->bus->dirname,
339	usbDevice[reader].dev->filename, strerror(errno));
340	return STATUS_UNSUCCESSFUL;
341	}
342
343	return STATUS_SUCCESS;
344	} /* WriteUSB */
345
346
347	/*****************************************************************************
348	*
349	* ReadUSB
350	*
351	****************************************************************************/
352	status_t ReadUSB(int lun, int * length, unsigned char *buffer)
353	{
354	int rv;
355	int reader = LunToReaderIndex(lun);
356	#ifdef DEBUG_LEVEL_COMM
357	char debug_header[] = "<- 121234 ";
358
359	sprintf(debug_header, "<- %06X ", (int)lun);
360	#endif
361
362
363	rv = usb_bulk_read(usbDevice[reader].handle, usbDevice[reader].bulk_in, buffer, *length, USB_READ_TIMEOUT);
364	*length = rv;
365
366	if (rv < 0)
367	{
368	DEBUG_CRITICAL4("usb_bulk_read(%s/%s): %s",
369	usbDevice[reader].dev->bus->dirname,
370	usbDevice[reader].dev->filename, strerror(errno));
371	return STATUS_UNSUCCESSFUL;
372	}
373
374	#ifdef DEBUG_LEVEL_COMM
375	DEBUG_XXD(debug_header, buffer, *length);
376	#endif
377
378	return STATUS_SUCCESS;
379	} /* ReadUSB */
380
381
382	/*****************************************************************************
383	*
384	* CloseUSB
385	*
386	****************************************************************************/
387	status_t CloseUSB(int lun)
388	{
389	struct usb_interface *usb_interface;
390	int interface;
391	int reader = LunToReaderIndex(lun);
392
393	/* device not opened */
394	if (usbDevice[reader].dev == NULL)
395	return STATUS_UNSUCCESSFUL;
396
397	DEBUG_COMM3("Closing USB device: %s/%s",
398	usbDevice[reader].dev->bus->dirname, usbDevice[reader].dev->filename);
399
400	usb_interface = get_ccid_usb_interface(usbDevice[reader].dev);
401	interface = usb_interface ?
402	usb_interface->altsetting->bInterfaceNumber :
403	usbDevice[reader].dev->config->interface->altsetting->bInterfaceNumber;
404
405	usb_release_interface(usbDevice[reader].handle, interface);
406
407	usb_reset(usbDevice[reader].handle);
408	usb_close(usbDevice[reader].handle);
409
410	/* mark the resource unused */
411	usbDevice[reader].handle = NULL;
412	usbDevice[reader].dev = NULL;
413
414	return STATUS_SUCCESS;
415	} /* CloseUSB */
416
417
418	/*****************************************************************************
419	*
420	* get_ccid_descriptor
421	*
422	****************************************************************************/
423	_ccid_descriptor *get_ccid_descriptor(int lun)
424	{
425	return &usbDevice[LunToReaderIndex(lun)].ccid;
426	} /* get_ccid_descriptor */
427
428
429	/*****************************************************************************
430	*
431	* get_desc
432	*
433	****************************************************************************/
434	int get_desc(int channel, usb_dev_handle **handle, struct
435	usb_device **dev)
436	{
437	if (channel < 0 \|\| channel > PCSCLITE_MAX_READERS)
438	return 1;
439
440	*handle = usbDevice[channel].handle;
441	*dev = usbDevice[channel].dev;
442
443	return 0;
444	} /* get_desc */
445
446
447	/*****************************************************************************
448	*
449	* get_end_points
450	*
451	****************************************************************************/
452	int get_end_points(struct usb_device dev, _usbDevice usb_device)
453	{
454	int i;
455	int bEndpointAddress;
456	struct usb_interface *usb_interface = get_ccid_usb_interface(dev);
457
458	/*
459	* 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out
460	*/
461	for (i=0; i<3; i++)
462	{
463	if (usb_interface->altsetting->endpoint[i].bmAttributes != USB_ENDPOINT_TYPE_BULK)
464	continue;
465
466	bEndpointAddress = usb_interface->altsetting->endpoint[i].bEndpointAddress;
467
468	if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN)
469	usb_device->bulk_in = bEndpointAddress;
470
471	if ((bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT)
472	usb_device->bulk_out = bEndpointAddress;
473	}
474
475	return 0;
476	} /* get_end_points */
477
478
479	/*****************************************************************************
480	*
481	* get_ccid_usb_interface
482	*
483	****************************************************************************/
484	struct usb_interface * get_ccid_usb_interface(struct usb_device *dev)
485	{
486	struct usb_interface *usb_interface = NULL;
487
488	/* if multiple interfaces use the first one with CCID class type */
489	if (dev->config->bNumInterfaces > 1)
490	{
491	int ii;
492	for (ii=0; ii<dev->config->bNumInterfaces; ii++)
493	{
494	if (dev->config->interface[ii].altsetting->bInterfaceClass == 0xb)
495	{
496	usb_interface = &dev->config->interface[ii];
497	break;
498	}
499	}
500	}
501	else
502	/* we keep this in case a reader reports a bad class value */
503	usb_interface = dev->config->interface;
504
505	return usb_interface;
506	} /* get_ccid_usb_interface */
507
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svn:keywords	Author Date Id Revision