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upekts: initialise and deinitialise device during verify/capture

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Otherwise it heats up, and verify retries fail because we didn't end the
session.
This commit is contained in:
Daniel Drake 2007-10-31 21:51:37 +00:00
parent fc0a97a801
commit 07a81b07be
2 changed files with 113 additions and 84 deletions
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1
TODO
View file

@ -24,7 +24,6 @@ aes4000 doesn't work very well, maybe due to small minutia count?
PPMM parameter to get_minutiae seems to have no effect
nbis minutiae should be stored in endian-independent format
return images with standard enroll/verify calls
upekts reverify problems
MISC
====

196
libfprint/drivers/upekts.c
View file

@ -421,108 +421,128 @@ static const unsigned char init28_0b[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00
};
static int do_init(struct fp_dev *dev)
{
enum read_msg_status msgstat;
unsigned char dummy = 0x10;
uint8_t seq;
int r;
r = usb_control_msg(dev->udev, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0c, 0x100, 0x400, &dummy, sizeof(dummy), TIMEOUT);
if (r < 0) {
fp_dbg("control write failed\n");
return r;
}
msgstat = read_msg(dev, &seq, NULL, NULL, NULL);
if (msgstat != READ_MSG_CMD) {
fp_err("expected command, got %d seq=%x", msgstat, seq);
return -EPROTO;
}
if (seq != 3) {
fp_err("expected seq=3, got %x", seq);
return -EPROTO;
}
r = send_cmdresponse(dev, ++seq, (unsigned char *) init_resp03,
sizeof(init_resp03));
if (r < 0)
return r;
msgstat = read_msg(dev, &seq, NULL, NULL, NULL);
if (msgstat != READ_MSG_CMD) {
fp_err("expected command, got %d seq=%x", msgstat, seq);
return -EPROTO;
}
if (seq != 5) {
fp_err("expected seq=5, got %x", seq);
return -EPROTO;
}
dummy = 0x04;
r = send_cmd28(dev, 0x06, &dummy, 1);
if (r < 0)
return r;
if (read_msg28(dev, 0x06, NULL, NULL) < 0)
return r;
dummy = 0x04;
r = send_cmd28(dev, 0x07, &dummy, 1);
if (r < 0)
return r;
if (read_msg28(dev, 0x07, NULL, NULL) < 0)
return r;
r = send_cmd28(dev, 0x08, (unsigned char *) init28_08,
sizeof(init28_08));
if (r < 0)
return r;
if (read_msg28(dev, 0x08, NULL, NULL) < 0)
return r;
r = send_cmd28(dev, 0x0c, (unsigned char *) init28_0c,
sizeof(init28_0c));
if (r < 0)
return r;
if (read_msg28(dev, 0x0c, NULL, NULL) < 0)
return r;
r = send_cmd28(dev, 0x0b, (unsigned char *) init28_0b,
sizeof(init28_0b));
if (r < 0)
return r;
if (read_msg28(dev, 0x0b, NULL, NULL) < 0)
return r;
return 0;
}
static int do_deinit(struct fp_dev *dev)
{
unsigned char dummy = 0;
enum read_msg_status msgstat;
uint8_t seq;
int r;
/* FIXME: either i've misunderstood the message system or this is illegal
* here, since we arent responding to anything. */
r = send_cmdresponse(dev, 0x07, &dummy, 1);
if (r < 0)
return r;
msgstat = read_msg(dev, &seq, NULL, NULL, NULL);
if (msgstat != READ_MSG_CMD) {
fp_err("expected command, got %d seq=%x", msgstat, seq);
return -EPROTO;
}
if (seq != 1) {
fp_err("expected seq=1, got %x", seq);
return -EPROTO;
}
return 0;
}
static int dev_init(struct fp_dev *dev, unsigned long driver_data)
{
struct upekts_dev *upekdev = NULL;
unsigned char dummy = 0x10;
enum read_msg_status msgstat;
uint8_t seq;
int r;
r = usb_claim_interface(dev->udev, 0);
if (r < 0)
return r;
r = usb_control_msg(dev->udev, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
0x0c, 0x100, 0x400, &dummy, sizeof(dummy), TIMEOUT);
if (r < 0) {
fp_dbg("control write failed\n");
goto err;
}
upekdev = g_malloc(sizeof(*upekdev));
upekdev->seq = 0xf0; /* incremented to 0x00 before first cmd */
dev->priv = upekdev;
dev->nr_enroll_stages = 3;
msgstat = read_msg(dev, &seq, NULL, NULL, NULL);
if (msgstat != READ_MSG_CMD) {
fp_err("expected command, got %d seq=%x", msgstat, seq);
goto err;
}
if (seq != 3) {
fp_err("expected seq=3, got %x", seq);
goto err;
}
r = send_cmdresponse(dev, ++seq, (unsigned char *) init_resp03,
sizeof(init_resp03));
if (r < 0)
goto err;
msgstat = read_msg(dev, &seq, NULL, NULL, NULL);
if (msgstat != READ_MSG_CMD) {
fp_err("expected command, got %d seq=%x", msgstat, seq);
goto err;
}
if (seq != 5) {
fp_err("expected seq=5, got %x", seq);
goto err;
}
dummy = 0x04;
r = send_cmd28(dev, 0x06, &dummy, 1);
if (r < 0)
goto err;
if (read_msg28(dev, 0x06, NULL, NULL) < 0)
goto err;
dummy = 0x04;
r = send_cmd28(dev, 0x07, &dummy, 1);
if (r < 0)
goto err;
if (read_msg28(dev, 0x07, NULL, NULL) < 0)
goto err;
r = send_cmd28(dev, 0x08, (unsigned char *) init28_08,
sizeof(init28_08));
if (r < 0)
goto err;
if (read_msg28(dev, 0x08, NULL, NULL) < 0)
goto err;
r = send_cmd28(dev, 0x0c, (unsigned char *) init28_0c,
sizeof(init28_0c));
if (r < 0)
goto err;
if (read_msg28(dev, 0x0c, NULL, NULL) < 0)
goto err;
r = send_cmd28(dev, 0x0b, (unsigned char *) init28_0b,
sizeof(init28_0b));
if (r < 0)
goto err;
if (read_msg28(dev, 0x0b, NULL, NULL) < 0)
goto err;
return 0;
err:
usb_release_interface(dev->udev, 0);
g_free(upekdev);
return -EPROTO;
}
static void dev_exit(struct fp_dev *dev)
{
unsigned char dummy = 0;
/* FIXME: either i've misunderstood the message system or this is illegal
* here, since we arent responding to anything. */
send_cmdresponse(dev, 0x07, &dummy, 1);
// FIXME should read msg A=01
usb_release_interface(dev->udev, 0);
g_free(dev->priv);
}
@ -547,6 +567,10 @@ static int enroll(struct fp_dev *dev, gboolean initial,
int passed = 0;
if (initial) {
r = do_init(dev);
if (r < 0)
return r;
r = send_cmd28(dev, 0x02, (unsigned char *) enroll_init,
sizeof(enroll_init));
if (r < 0)
@ -656,6 +680,7 @@ static int enroll(struct fp_dev *dev, gboolean initial,
memcpy(fdata->data, data + sizeof(scan_comp), data_len - sizeof(scan_comp));
*_data = fdata;
comp_out:
do_deinit(dev);
g_free(data);
}
@ -677,6 +702,10 @@ static int verify(struct fp_dev *dev, struct fp_print_data *print)
gboolean need_poll = FALSE;
gboolean done = FALSE;
r = do_init(dev);
if (r < 0)
return r;
data = g_malloc(data_len);
memcpy(data, verify_hdr, sizeof(verify_hdr));
memcpy(data + sizeof(verify_hdr), print->data, print->length);
@ -771,6 +800,7 @@ static int verify(struct fp_dev *dev, struct fp_print_data *print)
}
out:
do_deinit(dev);
g_free(data);
return r;
}