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libfprint/libfprint/drivers/elanmoc/elanmoc.c

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/*
* Copyright (C) 2021 Elan Microelectronics Inc
*
* 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
*/
#define FP_COMPONENT "elanmoc"
#include "drivers_api.h"
#include "fpi-byte-reader.h"
#include "elanmoc.h"
G_DEFINE_TYPE (FpiDeviceElanmoc, fpi_device_elanmoc, FP_TYPE_DEVICE)
static const FpIdEntry id_table[] = {
{ .vid = 0x04f3, .pid = 0x0c7e, },
{ .vid = 0, .pid = 0, .driver_data = 0 }, /* terminating entry */
};
typedef void (*SynCmdMsgCallback) (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error);
typedef struct
{
SynCmdMsgCallback callback;
} CommandData;
static uint8_t *
elanmoc_compose_cmd (
const struct elanmoc_cmd *cmd_info
)
{
g_autofree char *cmd_buf = NULL;
cmd_buf = g_malloc0 (cmd_info->cmd_len);
if(cmd_info->cmd_len < ELAN_MAX_HDR_LEN)
memcpy (cmd_buf, &cmd_info->cmd_header, cmd_info->cmd_len);
else
memcpy (cmd_buf, &cmd_info->cmd_header, ELAN_MAX_HDR_LEN);
return g_steal_pointer (&cmd_buf);
}
static void
elanmoc_cmd_ack_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (length_in == 0)
{
fpi_ssm_next_state (self->task_ssm);
return;
}
if (buffer_in[0] != 0x40 && buffer_in[1] != 0x00 )
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
fpi_ssm_next_state (self->task_ssm);
}
}
static void
fp_cmd_receive_cb (FpiUsbTransfer *transfer,
FpDevice *device,
gpointer userdata,
GError *error)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
CommandData *data = userdata;
int ssm_state = 0;
if (error)
{
fpi_ssm_mark_failed (transfer->ssm, error);
return;
}
if (data == NULL)
{
fpi_ssm_mark_failed (transfer->ssm,
fpi_device_error_new (FP_DEVICE_ERROR_GENERAL));
return;
}
ssm_state = fpi_ssm_get_cur_state (transfer->ssm);
/* skip zero length package */
if (transfer->actual_length == 0)
{
fpi_ssm_jump_to_state (transfer->ssm, ssm_state);
return;
}
if (data->callback)
data->callback (self, transfer->buffer, transfer->actual_length, NULL);
fpi_ssm_mark_completed (transfer->ssm);
}
typedef enum {
FP_CMD_SEND = 0,
FP_CMD_GET,
FP_CMD_NUM_STATES,
} FpCmdState;
static void
fp_cmd_run_state (FpiSsm *ssm,
FpDevice *dev)
{
FpiUsbTransfer *transfer;
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
switch (fpi_ssm_get_cur_state (ssm))
{
case FP_CMD_SEND:
if (self->cmd_transfer)
{
self->cmd_transfer->ssm = ssm;
fpi_usb_transfer_submit (g_steal_pointer (&self->cmd_transfer),
ELAN_MOC_CMD_TIMEOUT,
NULL,
fpi_ssm_usb_transfer_cb,
NULL);
}
else
{
fpi_ssm_next_state (ssm);
}
break;
case FP_CMD_GET:
if (self->cmd_len_in == 0)
{
CommandData *data = fpi_ssm_get_data (ssm);
if (data->callback)
data->callback (self, NULL, 0, 0);
fpi_ssm_mark_completed (ssm);
return;
}
transfer = fpi_usb_transfer_new (dev);
transfer->ssm = ssm;
fpi_usb_transfer_fill_bulk (transfer, self->cmd_cancelable ? ELAN_EP_MOC_CMD_IN : ELAN_EP_CMD_IN, self->cmd_len_in);
fpi_usb_transfer_submit (transfer,
self->cmd_cancelable ? 0 : ELAN_MOC_CMD_TIMEOUT,
self->cmd_cancelable ? fpi_device_get_cancellable (dev) : NULL,
fp_cmd_receive_cb,
fpi_ssm_get_data (ssm));
break;
}
}
static void
fp_cmd_ssm_done (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
CommandData *data = fpi_ssm_get_data (ssm);
self->cmd_ssm = NULL;
if (error)
{
if (data->callback)
data->callback (self, NULL, 0, error);
else
g_error_free (error);
}
}
static void
fp_cmd_ssm_done_data_free (CommandData *data)
{
g_free (data);
}
static void
elanmoc_get_cmd (FpDevice *device, guint8 *buffer_out,
gsize length_out, gsize length_in, gboolean cancelable, SynCmdMsgCallback callback)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
g_autoptr(FpiUsbTransfer) transfer = NULL;
CommandData *data = g_new0 (CommandData, 1);
transfer = fpi_usb_transfer_new (device);
transfer->short_is_error = TRUE;
fpi_usb_transfer_fill_bulk_full (transfer, ELAN_EP_CMD_OUT, buffer_out,
length_out, g_free);
data->callback = callback;
self->cmd_transfer = g_steal_pointer (&transfer);
self->cmd_len_in = length_in;
self->cmd_cancelable = cancelable;
self->cmd_ssm = fpi_ssm_new (FP_DEVICE (self),
fp_cmd_run_state,
FP_CMD_NUM_STATES);
fpi_ssm_set_data (self->cmd_ssm, data, (GDestroyNotify) fp_cmd_ssm_done_data_free);
fpi_ssm_start (self->cmd_ssm, fp_cmd_ssm_done);
}
enum enroll_states {
ENROLL_RSP_RETRY,
ENROLL_RSP_ENROLL_REPORT,
ENROLL_RSP_ENROLL_OK,
ENROLL_RSP_ENROLL_CANCEL_REPORT,
ENROLL_NUM_STATES,
};
static void
enroll_status_report (FpiDeviceElanmoc *self, int enroll_status_id,
int data, GError *error)
{
FpDevice *device = FP_DEVICE (self);
if (error)
{
fpi_device_enroll_complete (device, NULL, error);
return;
}
switch (enroll_status_id)
{
case ENROLL_RSP_RETRY:
{
fpi_device_enroll_progress (device, self->num_frames, NULL,
fpi_device_retry_new (FP_DEVICE_RETRY_CENTER_FINGER));
break;
}
case ENROLL_RSP_ENROLL_REPORT:
{
fpi_device_enroll_progress (device, self->num_frames, NULL, NULL);
break;
}
case ENROLL_RSP_ENROLL_OK:
{
FpPrint *print = NULL;
fp_info ("Enrollment was successful!");
fpi_device_get_enroll_data (device, &print);
fpi_device_enroll_complete (device, g_object_ref (print), NULL);
break;
}
case ENROLL_RSP_ENROLL_CANCEL_REPORT:
{
fpi_device_enroll_complete (device, NULL,
fpi_device_error_new_msg (FP_DEVICE_ERROR_GENERAL,
"Enrollment failed (%d) (ENROLL_RSP_ENROLL_CANCEL_REPORT)",
data));
}
}
}
static void
elanmoc_get_enrolled_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x40)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
fp_info ("elanmoc Current enrolled fingers in the Chipset: %d (0x%.2X 0x%.2X)", buffer_in[1],
buffer_in[0],
buffer_in[1]);
self->curr_enrolled = buffer_in[1];
fpi_ssm_next_state (self->task_ssm);
}
}
static void
elanmoc_reenroll_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x40)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
if ((self->curr_enrolled == (ELAN_MAX_ENROLL_NUM + 1)) && (buffer_in[1] == 0x00))
{
fp_warn ("elanmoc_reenroll_cb over enroll max");
fpi_ssm_mark_completed (self->task_ssm);
return;
}
if (buffer_in[1] == 0x00)
fp_info ("##### Normal Enrollment Case! #####");
else if (buffer_in[1] == 0x01)
fp_info ("##### Re-Enrollment Case! #####");
self->num_frames = 0;
fpi_ssm_next_state (self->task_ssm);
}
}
static void
elanmoc_enroll_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x40)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
if (buffer_in[1] == ELAN_MSG_OK)
{
self->num_frames += 1;
enroll_status_report (self, ENROLL_RSP_ENROLL_REPORT, self->num_frames, NULL);
}
else
{
enroll_status_report (self, ENROLL_RSP_RETRY, self->num_frames, NULL);
}
if (self->num_frames == ELAN_MOC_ENROLL_TIMES && buffer_in[1] == ELAN_MSG_OK)
fpi_ssm_next_state (self->task_ssm);
else if (self->num_frames < ELAN_MOC_ENROLL_TIMES)
fpi_ssm_jump_to_state (self->task_ssm, MOC_ENROLL_WAIT_FINGER);
else
fpi_ssm_mark_failed (self->task_ssm, error);
}
}
static void
elanmoc_commit_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (length_in == 0)
{
fpi_ssm_next_state (self->task_ssm);
return;
}
if (buffer_in[0] != 0x40 && buffer_in[1] != 0x00 )
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
fp_info ("elanmoc_commit_cb success");
enroll_status_report (self, ENROLL_RSP_ENROLL_OK, self->num_frames, NULL);
fpi_ssm_next_state (self->task_ssm);
}
}
static void
elan_enroll_run_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
guint8 *cmd_buf = NULL;
guint8 *data = NULL;
switch (fpi_ssm_get_cur_state (ssm))
{
case MOC_ENROLL_GET_ENROLLED_NUM:
cmd_buf = elanmoc_compose_cmd (&enrolled_number_cmd);
elanmoc_get_cmd (dev, cmd_buf, enrolled_number_cmd.cmd_len, enrolled_number_cmd.resp_len, 0, elanmoc_get_enrolled_cb);
break;
case MOC_ENROLL_REENROLL_CHECK:
data = fpi_ssm_get_data (ssm);
cmd_buf = elanmoc_compose_cmd (&elanmoc_check_reenroll_cmd);
memcpy (cmd_buf + 3, data, ELAN_USERDATE_SIZE);
elanmoc_get_cmd (dev, cmd_buf, elanmoc_check_reenroll_cmd.cmd_len, elanmoc_check_reenroll_cmd.resp_len, 0, elanmoc_reenroll_cb);
break;
case MOC_ENROLL_WAIT_FINGER:
cmd_buf = elanmoc_compose_cmd (&elanmoc_enroll_cmd);
cmd_buf[3] = self->curr_enrolled;
cmd_buf[4] = ELAN_MOC_ENROLL_TIMES;
cmd_buf[5] = self->num_frames;
elanmoc_get_cmd (dev, cmd_buf, elanmoc_enroll_cmd.cmd_len, elanmoc_enroll_cmd.resp_len, 1, elanmoc_enroll_cb);
break;
case MOC_ENROLL_COMMIT_RESULT:
data = fpi_ssm_get_data (ssm);
cmd_buf = elanmoc_compose_cmd (&elanmoc_enroll_commit_cmd);
memcpy (cmd_buf + 5, data, ELAN_USERDATE_SIZE);
elanmoc_get_cmd (dev, cmd_buf, elanmoc_enroll_commit_cmd.cmd_len, elanmoc_enroll_commit_cmd.resp_len, 0, elanmoc_commit_cb);
break;
}
}
static void
task_ssm_done (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
self->task_ssm = NULL;
g_clear_pointer (&self->list_result, g_ptr_array_unref);
if (error)
fpi_device_action_error (dev, error);
}
static FpPrint *
create_print_from_response (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError **error)
{
FpPrint *print;
GVariant *data;
GVariant *uid;
g_autofree gchar *userid = NULL;
g_autofree gchar *userid_safe = NULL;
int userid_len = 0;
if (buffer_in[0] != 0x43)
{
g_propagate_error (error,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
return NULL;
}
if (buffer_in[1] != ELAN_MSG_OK)
{
g_propagate_error (error,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Device returned error %d rather than print!", buffer_in[1]));
return NULL;
}
userid_len = buffer_in[4];
if (userid_len > length_in - 5)
{
g_propagate_error (error,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Packet too short for payload length!"));
return NULL;
}
userid = g_memdup (&buffer_in[5], userid_len);
userid_safe = g_strndup ((const char *) &buffer_in[5], userid_len);
print = fp_print_new (FP_DEVICE (self));
uid = g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, userid, userid_len, 1);
/* The first two bytes are meant to store a UUID,
* but will always be zero for prints created by libfprint.
*/
data = g_variant_new ("(yy@ay)",
buffer_in[2],
buffer_in[3],
uid);
fpi_print_set_type (print, FPI_PRINT_RAW);
fpi_print_set_device_stored (print, TRUE);
g_object_set (print, "fpi-data", data, NULL);
g_object_set (print, "description", userid_safe, NULL);
fpi_print_fill_from_user_id (print, userid_safe);
return print;
}
static void
elanmoc_get_userid_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
FpPrint *print;
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x43)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
return;
}
self->list_index++;
/* Skip 0xfe messages */
if (buffer_in[1] != 0xfe)
{
print = create_print_from_response (self, buffer_in, length_in, &error);
if (!print)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
g_ptr_array_add (self->list_result, g_object_ref_sink (print));
}
if(self->list_index <= ELAN_MAX_ENROLL_NUM)
{
fpi_ssm_jump_to_state (self->task_ssm, MOC_LIST_GET_FINGER);
}
else
{
fpi_device_list_complete (FP_DEVICE (self), g_steal_pointer (&self->list_result), NULL);
fpi_ssm_next_state (self->task_ssm);
}
}
static void
elan_list_run_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
guint8 *cmd_buf = NULL;
switch (fpi_ssm_get_cur_state (ssm))
{
case MOC_LIST_GET_ENROLLED:
cmd_buf = elanmoc_compose_cmd (&enrolled_number_cmd);
elanmoc_get_cmd (dev, cmd_buf, enrolled_number_cmd.cmd_len, enrolled_number_cmd.resp_len, 0, elanmoc_get_enrolled_cb);
self->list_index = 0;
break;
case MOC_LIST_GET_FINGER:
cmd_buf = elanmoc_compose_cmd (&elanmoc_get_userid_cmd);
cmd_buf[2] = self->list_index;
elanmoc_get_cmd (dev, cmd_buf, elanmoc_get_userid_cmd.cmd_len, elanmoc_get_userid_cmd.resp_len, 0, elanmoc_get_userid_cb);
break;
}
}
static void
elanmoc_list (FpDevice *device)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
self->list_result = g_ptr_array_new_with_free_func (g_object_unref);
self->task_ssm = fpi_ssm_new (FP_DEVICE (self),
elan_list_run_state,
MOC_LIST_NUM_STATES);
fpi_ssm_start (self->task_ssm, task_ssm_done);
}
enum verify_status {
RSP_VERIFY_FAIL,
RSP_VERIFY_OK,
RSP_VERIFY_STATES,
};
static void
elanmoc_match_report_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
FpDevice *device = FP_DEVICE (self);
FpPrint *print = NULL;
FpPrint *verify_print = NULL;
GPtrArray *prints;
gboolean found = FALSE;
guint index;
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x43)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
return;
}
print = create_print_from_response (self, buffer_in, length_in, &error);
if (!print)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
fp_info ("Verify/Identify successful for: %s", fp_print_get_description (print));
if (fpi_device_get_current_action (device) == FPI_DEVICE_ACTION_IDENTIFY)
{
fpi_device_get_identify_data (device, &prints);
found = g_ptr_array_find_with_equal_func (prints,
print,
(GEqualFunc) fp_print_equal,
&index);
if (found)
fpi_device_identify_report (device, g_ptr_array_index (prints, index), print, NULL);
else
fpi_device_identify_report (device, NULL, print, NULL);
fpi_device_identify_complete (device, NULL);
}
else
{
fpi_device_get_verify_data (device, &verify_print);
if (fp_print_equal (verify_print, print))
fpi_device_verify_report (device, FPI_MATCH_SUCCESS, print, NULL);
else
fpi_device_verify_report (device, FPI_MATCH_FAIL, print, NULL);
fpi_device_verify_complete (device, NULL);
}
}
static void
identify_status_report (FpiDeviceElanmoc *self, int verify_status_id,
int data, GError *error)
{
FpDevice *device = FP_DEVICE (self);
guint8 *cmd_buf = NULL;
if (error)
{
fpi_device_enroll_complete (device, NULL, error);
return;
}
switch (verify_status_id)
{
case RSP_VERIFY_FAIL:
{
if (data == ELAN_MSG_VERIFY_ERR)
{
if (fpi_device_get_current_action (device) == FPI_DEVICE_ACTION_VERIFY)
{
fpi_device_verify_report (device, FPI_MATCH_FAIL, NULL, NULL);
fpi_device_verify_complete (device, NULL);
}
else
{
fpi_device_identify_report (device, NULL, NULL, NULL);
fpi_device_identify_complete (device, NULL);
}
}
else
{
GError *retry_error;
switch (data)
{
case ELAN_MSG_TOO_HIGH:
case ELAN_MSG_TOO_LOW:
case ELAN_MSG_TOO_RIGHT:
case ELAN_MSG_TOO_LEFT:
retry_error = fpi_device_retry_new (FP_DEVICE_RETRY_CENTER_FINGER);
break;
default:
retry_error = fpi_device_retry_new (FP_DEVICE_RETRY_GENERAL);
}
if (fpi_device_get_current_action (device) == FPI_DEVICE_ACTION_VERIFY)
{
fpi_device_verify_report (device, FPI_MATCH_ERROR, NULL, retry_error);
fpi_device_verify_complete (device, NULL);
}
else
{
fpi_device_identify_report (device, NULL, NULL, retry_error);
fpi_device_identify_complete (device, NULL);
}
}
break;
}
case RSP_VERIFY_OK:
{
fp_dbg ("Verify was successful! for user: %d mesg_code: %d ", data, verify_status_id);
cmd_buf = elanmoc_compose_cmd (&elanmoc_get_userid_cmd);
cmd_buf[2] = data;
elanmoc_get_cmd (device, cmd_buf, elanmoc_get_userid_cmd.cmd_len, elanmoc_get_userid_cmd.resp_len, 0, elanmoc_match_report_cb);
break;
}
}
}
enum identify_states {
IDENTIFY_WAIT_FINGER,
IDENTIFY_NUM_STATES,
};
static void
elanmoc_identify_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[1] == ELAN_MSG_VERIFY_ERR)
identify_status_report (self, RSP_VERIFY_FAIL,
buffer_in[1], error);
else if (buffer_in[1] <= ELAN_MAX_ENROLL_NUM)
identify_status_report (self, RSP_VERIFY_OK, buffer_in[1], error);
else
identify_status_report (self, RSP_VERIFY_FAIL, buffer_in[1], error);
fpi_ssm_next_state (self->task_ssm);
}
static void
elan_identify_run_state (FpiSsm *ssm, FpDevice *dev)
{
guint8 *cmd_buf = NULL;
fp_info ("elanmoc %s ", __func__);
switch (fpi_ssm_get_cur_state (ssm))
{
case IDENTIFY_WAIT_FINGER:
fp_info ("elanmoc %s VERIFY_WAIT_FINGER", __func__);
cmd_buf = elanmoc_compose_cmd (&elanmoc_verify_cmd);
elanmoc_get_cmd (dev, cmd_buf, elanmoc_verify_cmd.cmd_len, elanmoc_verify_cmd.resp_len, 1, elanmoc_identify_cb);
break;
}
}
static void
elanmoc_enroll (FpDevice *device)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
FpPrint *print = NULL;
GVariant *data = NULL;
GVariant *uid = NULL;
g_autofree gchar *user_id;
gsize user_id_len;
guint8 *userdata = g_malloc0 (ELAN_USERDATE_SIZE);
fpi_device_get_enroll_data (device, &print);
user_id = fpi_print_generate_user_id (print);
user_id_len = strlen (user_id);
user_id_len = MIN (ELAN_MAX_USER_ID_LEN, user_id_len);
uid = g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE,
user_id,
user_id_len, 1);
data = g_variant_new ("(yy@ay)",
0, 0,
uid);
fpi_print_set_type (print, FPI_PRINT_RAW);
fpi_print_set_device_stored (print, TRUE);
g_object_set (print, "fpi-data", data, NULL);
g_object_set (print, "description", user_id, NULL);
userdata[0] = 0;
userdata[1] = 0;
userdata[2] = user_id_len;
memcpy (userdata + 3, user_id, user_id_len);
self->task_ssm = fpi_ssm_new (FP_DEVICE (self),
elan_enroll_run_state,
MOC_ENROLL_NUM_STATES);
fpi_ssm_set_data (self->task_ssm, userdata, (GDestroyNotify) fp_cmd_ssm_done_data_free);
fpi_ssm_start (self->task_ssm, task_ssm_done);
}
static void
elanmoc_delete_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[0] != 0x40 && buffer_in[1] != 0x00)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Can't get response!!"));
}
else
{
fpi_device_delete_complete (FP_DEVICE (self), NULL);
fpi_ssm_next_state (self->task_ssm);
}
}
static void
elan_delete_run_state (FpiSsm *ssm, FpDevice *dev)
{
guint8 *cmd_buf = NULL;
guint8 *data = fpi_ssm_get_data (ssm);
switch (fpi_ssm_get_cur_state (ssm))
{
case DELETE_SEND_CMD:
cmd_buf = elanmoc_compose_cmd (&elanmoc_delete_cmd);
memcpy (cmd_buf + 3, data, ELAN_USERDATE_SIZE);
elanmoc_get_cmd (dev, cmd_buf, elanmoc_delete_cmd.cmd_len, elanmoc_delete_cmd.resp_len, 0, elanmoc_delete_cb);
break;
}
}
static void
elanmoc_delete_print (FpDevice *device)
{
g_autoptr(GVariant) data = NULL;
g_autoptr(GVariant) user_id_var = NULL;
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
FpPrint *print = NULL;
const guint8 *user_id;
g_autofree char *user_id_safe = NULL;
gsize user_id_len = 0;
guint8 *userid_buf = NULL;
fpi_device_get_delete_data (device, &print);
g_object_get (print, "fpi-data", &data, NULL);
if (!g_variant_check_format_string (data, "(yy@ay)", FALSE))
{
fpi_device_delete_complete (device,
fpi_device_error_new (FP_DEVICE_ERROR_DATA_INVALID));
return;
}
userid_buf = g_malloc0 (ELAN_USERDATE_SIZE);
g_variant_get (data,
"(yy@ay)",
&userid_buf[0],
&userid_buf[1],
&user_id_var);
user_id = g_variant_get_fixed_array (user_id_var, &user_id_len, 1);
user_id_safe = g_strndup ((const char *) user_id, user_id_len);
user_id_len = MIN (ELAN_MAX_USER_ID_LEN, user_id_len);
userid_buf[2] = user_id_len;
memcpy (userid_buf + 3, user_id, user_id_len);
fp_info ("Delete Finger, user_id = %s!", user_id_safe);
self->task_ssm = fpi_ssm_new (device,
elan_delete_run_state,
DELETE_NUM_STATES);
fpi_ssm_set_data (self->task_ssm, userid_buf, g_free);
fpi_ssm_start (self->task_ssm, task_ssm_done);
}
static void
elanmoc_identify (FpDevice *device)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
self->task_ssm = fpi_ssm_new (device,
elan_identify_run_state,
IDENTIFY_NUM_STATES);
fpi_ssm_start (self->task_ssm, task_ssm_done);
}
static void
task_ssm_init_done (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
if (error)
g_usb_device_release_interface (fpi_device_get_usb_device (dev),
0, 0, NULL);
fpi_device_open_complete (FP_DEVICE (self), error);
}
static void
elanmoc_cmd_ver_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
self->fw_ver = (buffer_in[0] << 8 | buffer_in[1]);
fp_info ("elanmoc FW Version %x ", self->fw_ver);
fpi_ssm_next_state (self->task_ssm);
}
static void
elanmoc_cmd_dim_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
self->x_trace = buffer_in[0];
self->y_trace = buffer_in[2];
fp_info ("elanmoc last_read DIM 0x%.2X(%d) 0x%.2X(%d)", self->x_trace, self->x_trace,
self->y_trace, self->y_trace);
fpi_ssm_next_state (self->task_ssm);
}
static void
elanmoc_get_status_cb (FpiDeviceElanmoc *self,
uint8_t *buffer_in,
gsize length_in,
GError *error)
{
guint8 *cmd_buf = NULL;
if (error)
{
fpi_ssm_mark_failed (self->task_ssm, error);
return;
}
if (buffer_in[1] != 0x03 && self->cmd_retry_cnt != 0)
{
if(self->cmd_retry_cnt == 0)
{
fpi_ssm_mark_failed (self->task_ssm,
fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
"Sensor not ready"));
return;
}
self->cmd_retry_cnt--;
cmd_buf = elanmoc_compose_cmd (&cal_status_cmd);
elanmoc_get_cmd (FP_DEVICE (self), cmd_buf, cal_status_cmd.cmd_len, cal_status_cmd.resp_len, 0, elanmoc_get_status_cb);
}
else
{
fpi_ssm_next_state (self->task_ssm);
}
}
static void
dev_init_handler (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
guint8 *cmd_buf = NULL;
switch (fpi_ssm_get_cur_state (ssm))
{
case DEV_WAIT_READY:
self->cmd_retry_cnt = ELAN_MOC_CAL_RETRY;
cmd_buf = elanmoc_compose_cmd (&cal_status_cmd);
elanmoc_get_cmd (dev, cmd_buf, cal_status_cmd.cmd_len, cal_status_cmd.resp_len, 0, elanmoc_get_status_cb);
break;
case DEV_SET_MODE:
cmd_buf = elanmoc_compose_cmd (&elanmoc_set_mod_cmd);
cmd_buf[3] = 0x03;
elanmoc_get_cmd (dev, cmd_buf, elanmoc_set_mod_cmd.cmd_len, elanmoc_set_mod_cmd.resp_len, 0, elanmoc_cmd_ack_cb);
break;
case DEV_GET_VER:
cmd_buf = elanmoc_compose_cmd (&fw_ver_cmd);
elanmoc_get_cmd (dev, cmd_buf, fw_ver_cmd.cmd_len, fw_ver_cmd.resp_len, 0, elanmoc_cmd_ver_cb);
break;
case DEV_GET_DIM:
cmd_buf = elanmoc_compose_cmd (&sensor_dim_cmd);
elanmoc_get_cmd (dev, cmd_buf, sensor_dim_cmd.cmd_len, sensor_dim_cmd.resp_len, 0, elanmoc_cmd_dim_cb);
break;
case DEV_GET_ENROLLED:
cmd_buf = elanmoc_compose_cmd (&enrolled_number_cmd);
elanmoc_get_cmd (dev, cmd_buf, enrolled_number_cmd.cmd_len, enrolled_number_cmd.resp_len, 0, elanmoc_get_enrolled_cb);
break;
}
}
static void
elanmoc_open (FpDevice *device)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
GError *error = NULL;
if (!g_usb_device_reset (fpi_device_get_usb_device (device), &error))
goto error;
if (!g_usb_device_claim_interface (fpi_device_get_usb_device (device), 0, 0, &error))
goto error;
self->task_ssm = fpi_ssm_new (FP_DEVICE (self), dev_init_handler, DEV_INIT_STATES);
fpi_ssm_start (self->task_ssm, task_ssm_init_done);
return;
error:
fpi_device_open_complete (FP_DEVICE (self), error);
}
static void
task_ssm_exit_done (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (dev);
g_usb_device_release_interface (fpi_device_get_usb_device (FP_DEVICE (self)), 0, 0, &error);
fpi_device_close_complete (FP_DEVICE (self), error);
self->task_ssm = NULL;
}
static void
dev_exit_handler (FpiSsm *ssm, FpDevice *dev)
{
guint8 *cmd_buf = NULL;
switch (fpi_ssm_get_cur_state (ssm))
{
case DEV_EXIT_ABOVE:
cmd_buf = elanmoc_compose_cmd (&elanmoc_above_cmd);
elanmoc_get_cmd (dev, cmd_buf, elanmoc_above_cmd.cmd_len, elanmoc_above_cmd.resp_len, 0, elanmoc_cmd_ack_cb);
break;
}
}
static void
elanmoc_close (FpDevice *device)
{
FpiDeviceElanmoc *self = FPI_DEVICE_ELANMOC (device);
fp_info ("Elanmoc dev_exit");
self->task_ssm = fpi_ssm_new (FP_DEVICE (self), dev_exit_handler, DEV_EXIT_STATES);
fpi_ssm_start (self->task_ssm, task_ssm_exit_done);
}
static void
fpi_device_elanmoc_init (FpiDeviceElanmoc *self)
{
G_DEBUG_HERE ();
}
static void
fpi_device_elanmoc_class_init (FpiDeviceElanmocClass *klass)
{
FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass);
dev_class->id = FP_COMPONENT;
dev_class->full_name = ELAN_MOC_DRIVER_FULLNAME;
dev_class->type = FP_DEVICE_TYPE_USB;
dev_class->scan_type = FP_SCAN_TYPE_PRESS;
dev_class->id_table = id_table;
dev_class->nr_enroll_stages = ELAN_MOC_ENROLL_TIMES;
dev_class->temp_hot_seconds = -1;
dev_class->open = elanmoc_open;
dev_class->close = elanmoc_close;
dev_class->verify = elanmoc_identify;
dev_class->enroll = elanmoc_enroll;
dev_class->identify = elanmoc_identify;
dev_class->delete = elanmoc_delete_print;
dev_class->list = elanmoc_list;
fpi_device_class_auto_initialize_features (dev_class);
}
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