Add Secugen FDU2000 driver

[dsd@gentoo.org: some trivial changes:
fixed some warnings
fixed fp_img memory leak on error
renamed endpoint constants (calling a bulk endpoint 'ctrl' is confusing,
as a control endpoint is something different)
]
This commit is contained in:
Gustavo Chain 2007-12-27 01:09:32 +00:00 committed by Daniel Drake
parent 659d8346be
commit 6f456f399d
4 changed files with 315 additions and 1 deletions

View file

@ -6,8 +6,9 @@ URU4000_SRC = drivers/uru4000.c
AES1610_SRC = drivers/aes1610.c
AES2501_SRC = drivers/aes2501.c drivers/aes2501.h
AES4000_SRC = drivers/aes4000.c
FDU2000_SRC = drivers/fdu2000.c
DRIVER_SRC = $(UPEKTS_SRC) $(URU4000_SRC) $(AES1610_SRC) $(AES2501_SRC) $(AES4000_SRC) $(UPEKTC_SRC)
DRIVER_SRC = $(UPEKTS_SRC) $(URU4000_SRC) $(AES1610_SRC) $(AES2501_SRC) $(AES4000_SRC) $(UPEKTC_SRC) $(FDU2000_SRC)
NBIS_SRC = \
nbis/include/bozorth.h \

View file

@ -334,6 +334,7 @@ static struct fp_img_driver * const img_drivers[] = {
&aes2501_driver,
&aes4000_driver,
&upektc_driver,
&fdu2000_driver,
};
static void register_drivers(void)

311
libfprint/drivers/fdu2000.c Normal file
View file

@ -0,0 +1,311 @@
/*
* Secugen FDU2000 driver for libfprint
* Copyright (C) 2007 Gustavo Chain <g@0xff.cl>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <usb.h>
#define FP_COMPONENT "fdu2000"
#include <fp_internal.h>
#ifndef HAVE_MEMMEM
gpointer
memmem(const gpointer haystack, size_t haystack_len, const gpointer needle, size_t needle_len) {
const gchar *begin;
const char *const last_possible = (const char *) haystack + haystack_len - needle_len;
/* The first occurrence of the empty string is deemed to occur at
* the beginning of the string. */
if (needle_len == 0)
return (void *) haystack;
/* Sanity check, otherwise the loop might search through the whole
* memory. */
if (haystack_len < needle_len)
return NULL;
for (begin = (const char *) haystack; begin <= last_possible; ++begin)
if (begin[0] == ((const char *) needle)[0] &&
!memcmp((const void *) &begin[1],
(const void *) ((const char *) needle + 1),
needle_len - 1))
return (void *) begin;
return NULL;
}
#endif /* HAVE_MEMMEM */
#define EP_IMAGE ( 0x02 | USB_ENDPOINT_IN )
#define EP_REPLY ( 0x01 | USB_ENDPOINT_IN )
#define EP_CMD ( 0x01 | USB_ENDPOINT_OUT )
#define BULK_TIMEOUT 200
/* fdu_req[] index */
typedef enum {
CAPTURE_READY,
CAPTURE_READ,
CAPTURE_END,
LED_OFF,
LED_ON
} req_index;
#define CMD_LEN 2
#define ACK_LEN 8
static const struct fdu2000_req {
const gchar cmd[CMD_LEN]; // Command to send
const gchar ack[ACK_LEN]; // Expected ACK
const guint ack_len; // ACK has variable length
} fdu_req[] = {
/* Capture */
{
.cmd = { 0x00, 0x04 },
.ack = { 0x00, 0x04, 0x01, 0x01 },
.ack_len = 4
},
{
.cmd = { 0x00, 0x01 },
.ack = { 0x00, 0x01, 0x01, 0x01 },
.ack_len = 4
},
{
.cmd = { 0x00, 0x05 },
.ack = { 0x00, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
.ack_len = 8
},
/* Led */
{
.cmd = { 0x05, 0x00 },
.ack = {},
.ack_len = 0
},
{
.cmd = { 0x05, 0x01 },
.ack = {},
.ack_len = 0
}
};
/*
* Write a command and verify reponse
*/
static gint
bulk_write_safe(usb_dev_handle *dev, req_index rIndex) {
gchar reponse[ACK_LEN];
gint r;
gchar *cmd = (gchar *)fdu_req[rIndex].cmd;
gchar *ack = (gchar *)fdu_req[rIndex].ack;
gint ack_len = fdu_req[rIndex].ack_len;
r = usb_bulk_write(dev, EP_CMD, cmd, sizeof(cmd), BULK_TIMEOUT);
if (r < 0)
return r;
if (ack_len == 0)
return 0;
/* Check reply from FP */
r = usb_bulk_read (dev, EP_REPLY,
reponse, sizeof(reponse), BULK_TIMEOUT);
if (r < 0)
return r;
if (!strncmp(ack, reponse, ack_len))
return 0;
fp_err("Expected different ACK from dev");
return 1; /* Error */
}
static gint
capture(struct fp_img_dev *dev, gboolean unconditional,
struct fp_img **ret)
{
#define RAW_IMAGE_WIDTH 398
#define RAW_IMAGE_HEIGTH 301
#define RAW_IMAGE_SIZE (RAW_IMAGE_WIDTH * RAW_IMAGE_HEIGTH)
struct fp_img *img = NULL;
guint bytes, r;
const gchar SOF[] = { 0x0f, 0x0f, 0x0f, 0x0f, 0x00, 0x00, 0x0c, 0x07 }; // Start of frame
const gchar SOL[] = { 0x0f, 0x0f, 0x0f, 0x0f, 0x00, 0x00, 0x0b, 0x06 }; // Start of line + { L L } (L: Line num) (8 nibbles)
gchar *buffer;
gchar *image;
gchar *p;
guint offset;
buffer = g_malloc0(RAW_IMAGE_SIZE * 6);
image = g_malloc0(RAW_IMAGE_SIZE);
if ((r = bulk_write_safe(dev->udev, LED_ON))) {
fp_err("Command: LED_ON");
goto out;
}
if ((r = bulk_write_safe(dev->udev, CAPTURE_READY))) {
fp_err("Command: CAPTURE_READY");
goto out;
}
read:
if ((r = bulk_write_safe(dev->udev, CAPTURE_READ))) {
fp_err("Command: CAPTURE_READ");
goto out;
}
/* Now we are ready to read from dev */
bytes = usb_bulk_read(dev->udev,
EP_IMAGE,
buffer, RAW_IMAGE_SIZE * 6,
BULK_TIMEOUT * 10);
if (bytes < 1)
goto read;
/*
* Find SOF (start of line)
*/
p = memmem(buffer, RAW_IMAGE_SIZE * 6,
(const gpointer)SOF, sizeof SOF);
fp_dbg("Read %d byte/s from dev", bytes);
if (!p)
goto out;
p += sizeof SOF;
int i = 0;
bytes = 0;
while(p) {
if ( i >= RAW_IMAGE_HEIGTH )
break;
offset = p - buffer;
p = memmem(p, (RAW_IMAGE_SIZE * 6) - (offset),
(const gpointer)SOL, sizeof SOL);
if (p) {
p += sizeof SOL + 4;
int j;
for (j = 0; j < RAW_IMAGE_WIDTH; j++) {
/**
* Convert from 4 to 8 bits
* The SECUGEN-FDU2000 has 4 lines of data, so we need to join 2 bytes into 1
*/
*(image + bytes + j) = *(p + (j * 2) + 0) << 4 & 0xf0;
*(image + bytes + j) |= *(p + (j * 2) + 1) & 0x0f;
}
p += RAW_IMAGE_WIDTH * 2;
bytes += RAW_IMAGE_WIDTH;
i++;
}
}
if ((r = bulk_write_safe(dev->udev, CAPTURE_END))) {
fp_err("Command: CAPTURE_END");
goto out;
}
if ((r = bulk_write_safe(dev->udev, LED_OFF))) {
fp_err("Command: LED_OFF");
goto out;
}
img = fpi_img_new_for_imgdev(dev);
memcpy(img->data, image, RAW_IMAGE_SIZE);
img->flags = FP_IMG_COLORS_INVERTED | FP_IMG_V_FLIPPED | FP_IMG_H_FLIPPED;
*ret = img;
out:
g_free(buffer);
g_free(image);
return r;
}
static
gint dev_init(struct fp_img_dev *dev, unsigned long driver_data)
{
gint r;
if ( (r = usb_set_configuration(dev->udev, 1)) < 0 )
goto out;
if ( (r = usb_claim_interface(dev->udev, 0)) < 0 )
goto out;
if ( (r = usb_set_altinterface(dev->udev, 1)) < 0 )
goto out;
if ( (r = usb_clear_halt(dev->udev, EP_CMD)) < 0 )
goto out;
/* Make sure sensor mode is not capture_{ready|read} */
if ((r = bulk_write_safe(dev->udev, CAPTURE_END))) {
fp_err("Command: CAPTURE_END");
goto out;
}
if ((r = bulk_write_safe(dev->udev, LED_OFF))) {
fp_err("Command: LED_OFF");
goto out;
}
return 0;
out:
fp_err("could not init dev");
fp_err(usb_strerror());
return r;
}
static
void dev_exit(struct fp_img_dev *dev)
{
if (bulk_write_safe(dev->udev, CAPTURE_END))
fp_err("Command: CAPTURE_END");
usb_release_interface(dev->udev, 0);
}
static const struct usb_id id_table[] = {
{ .vendor = 0x1162, .product = 0x0300 },
{ 0, 0, 0, },
};
struct fp_img_driver fdu2000_driver = {
.driver = {
.id = 7,
.name = FP_COMPONENT,
.full_name = "Secugen FDU 2000",
.id_table = id_table,
},
.img_height = RAW_IMAGE_HEIGTH,
.img_width = RAW_IMAGE_WIDTH,
.bz3_threshold = 23,
.init = dev_init,
.exit = dev_exit,
.capture = capture,
};

View file

@ -145,6 +145,7 @@ extern struct fp_img_driver uru4000_driver;
extern struct fp_img_driver aes1610_driver;
extern struct fp_img_driver aes2501_driver;
extern struct fp_img_driver aes4000_driver;
extern struct fp_img_driver fdu2000_driver;
void fpi_img_driver_setup(struct fp_img_driver *idriver);