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libfprint/libfprint/drivers/etes603.c
Marco Trevisan (Treviño) c0895a858d etes603: Return TOO_SHORT retry error for small images 
If the image height is less than the sensor horizontal resolution, then
return a retry error rather than trying to submit the image for further
processing.

Related to: #251
2020-04-24 20:03:51 +02:00

1654 lines
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/*
* EgisTec ES603 driver for libfprint
* Copyright (C) 2012 Patrick Marlier
*
* 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
*/
/* EgisTec ES603 device information
* Sensor area: 192 x 4 pixels
* Sensor gray: 16 gray levels/sensor pixel
* Sensor resolution: 508 dpi
* USB Manufacturer ID: 1C7A
* USB Product ID: 0603
*
* Possible compatibility LTT-SS500/SS501
*
* Extra features not present in this driver (see https://code.google.com/p/etes603):
* Tuning of DTVRT for contact detection
* Contact detection via capacitance
* Capture mode using assembled frames (usually better quality)
*
*/
#define FP_COMPONENT "etes603"
#include "drivers_api.h"
/* libusb defines */
#define EP_IN 0x81
#define EP_OUT 0x02
/* Note that 1000 ms is usually enough but with CMD_READ_FE could be longer
* since the sensor is waiting motion. */
#define BULK_TIMEOUT 1000
/* es603 defines */
#define FRAME_WIDTH 192 /* pixels per row */
#define FRAME_HEIGHT 4 /* number of rows */
#define FRAME_SIZE 384 /* size in bytes (4 bits per pixels) */
#define FE_WIDTH 256 /* pixels per row for Fly-Estimation */
#define FE_HEIGHT 500 /* number of rows for Fly-Estimation */
#define FE_SIZE 64000 /* size in bytes (4 bits per pixels) */
#define GAIN_SMALL_INIT 0x23 /* Initial small gain */
#define VRT_MAX 0x3F /* Maximum value for VRT */
#define VRB_MAX 0x3A /* Maximum value for VRB */
#define DTVRT_MAX 0x3A /* Maximum value for DTVRT */
#define DCOFFSET_MIN 0x00 /* Minimum value for DCoffset */
#define DCOFFSET_MAX 0x35 /* Maximum value for DCoffset */
/* es603 commands */
#define CMD_READ_REG 0x01
#define CMD_WRITE_REG 0x02
#define CMD_READ_FRAME 0x03 /* Read the sensor area */
#define CMD_READ_FE 0x06 /* Read a fingerprint using Fly-Estimation */
#define CMD_20 0x20 /* ? */
#define CMD_25 0x25 /* ? */
#define CMD_60 0x60 /* ? */
#define CMD_OK 0x01 /* Command successfully executed */
/* es603 registers */
#define REG_MAX 0x18 /* Maximum number of registers in one message */
#define REG_MODE_CONTROL 0x02 /* Mode control */
#define REG_03 0x03 /* Contact register? */
#define REG_04 0x04 /* ? */
#define REG_10 0x10 /* MVS FRMBUF control */
#define REG_1A 0x1A /* ? */
/* BEGIN init sensor */
#define REG_20 0x20 /* (def: 0x00) */
#define REG_21 0x21 /* Small gain (def: 0x23) */
#define REG_22 0x22 /* Normal gain (def: 0x21) */
#define REG_23 0x23 /* Large gain (def: 0x20) */
#define REG_24 0x24 /* (def: 0x14) */
#define REG_25 0x25 /* (def: 0x6A) */
#define REG_26 0x26 /* VRB again? (def: 0x00) */
#define REG_27 0x27 /* VRT again? (def: 0x00) */
#define REG_28 0x28 /* (def: 0x00) */
#define REG_29 0x29 /* (def: 0xC0) */
#define REG_2A 0x2A /* (def: 0x50) */
#define REG_2B 0x2B /* (def: 0x50) */
#define REG_2C 0x2C /* (def: 0x4D) */
#define REG_2D 0x2D /* (def: 0x03) */
#define REG_2E 0x2E /* (def: 0x06) */
#define REG_2F 0x2F /* (def: 0x06) */
#define REG_30 0x30 /* (def: 0x10) */
#define REG_31 0x31 /* (def: 0x02) */
#define REG_32 0x32 /* (def: 0x14) */
#define REG_33 0x33 /* (def: 0x34) */
#define REG_34 0x34 /* (def: 0x01) */
#define REG_35 0x35 /* (def: 0x08) */
#define REG_36 0x36 /* (def: 0x03) */
#define REG_37 0x37 /* (def: 0x21) */
/* END init sensor */
#define REG_ENC1 0x41 /* Encryption 1 */
#define REG_ENC2 0x42
#define REG_ENC3 0x43
#define REG_ENC4 0x44
#define REG_ENC5 0x45
#define REG_ENC6 0x46
#define REG_ENC7 0x47
#define REG_ENC8 0x48 /* Encryption 8 */
#define REG_50 0x50 /* ? For contact detection */
#define REG_51 0x51 /* ? */
#define REG_59 0x59 /* ? */
#define REG_5A 0x5A /* ? */
#define REG_5B 0x5B /* ? */
#define REG_INFO0 0x70 /* Sensor model byte0 */
#define REG_INFO1 0x71 /* Sensor model byte1 */
#define REG_INFO2 0x72 /* Sensor model byte2 */
#define REG_INFO3 0x73 /* Sensor model byte3 */
#define REG_GAIN 0xE0
#define REG_VRT 0xE1
#define REG_VRB 0xE2
#define REG_DTVRT 0xE3 /* used for contact detection */
#define REG_VCO_CONTROL 0xE5 /* 0x13 (IDLE?), 0x14 (REALTIME) */
#define REG_DCOFFSET 0xE6
#define REG_F0 0xF0 /* ? init:0x00 close:0x01 */
#define REG_F2 0xF2 /* ? init:0x00 close:0x4E */
#define REG_MODE_SLEEP 0x30 /* Sleep mode */
#define REG_MODE_CONTACT 0x31 /* Contact mode */
#define REG_MODE_SENSOR 0x33 /* Sensor mode */
#define REG_MODE_FP 0x34 /* FingerPrint mode (Fly-Estimation®) */
#define REG_VCO_IDLE 0x13
#define REG_VCO_RT 0x14 /* Realtime */
/* The size of the message header is 5 plus 1 for the command. */
#define MSG_HDR_SIZE 6
/* This structure must be packed because it is a the raw message sent. */
struct egis_msg
{
guint8 magic[5]; /* out: 'EGIS' 0x09 / in: 'SIGE' 0x0A */
guint8 cmd;
union
{
struct
{
guint8 nb;
guint8 regs[REG_MAX];
} egis_readreg;
struct
{
guint8 regs[REG_MAX];
} sige_readreg;
struct
{
guint8 nb;
struct
{
guint8 reg;
guint8 val;
} regs[REG_MAX];
} egis_writereg;
struct
{
guint8 length_factor;
guint8 length;
guint8 use_gvv;
guint8 gain;
guint8 vrt;
guint8 vrb;
} egis_readf;
struct
{
guint8 len[2];
guint8 val[3];
} egis_readfp;
struct
{
guint8 val[5];
} sige_misc;
guint8 padding[0x40 - 6]; /* Ensure size of 0x40 */
};
} __attribute__((packed));
/* Structure to keep information between asynchronous functions. */
struct _FpiDeviceEtes603
{
FpImageDevice parent;
guint8 regs[256];
struct egis_msg *req;
size_t req_len;
struct egis_msg *ans;
size_t ans_len;
guint8 *fp;
guint16 fp_height;
guint8 tunedc_min;
guint8 tunedc_max;
/* Device parameters */
guint8 gain;
guint8 dcoffset;
guint8 vrt;
guint8 vrb;
unsigned int is_active;
};
G_DECLARE_FINAL_TYPE (FpiDeviceEtes603, fpi_device_etes603, FPI, DEVICE_ETES603,
FpImageDevice);
G_DEFINE_TYPE (FpiDeviceEtes603, fpi_device_etes603, FP_TYPE_IMAGE_DEVICE);
static void m_start_fingerdetect (FpImageDevice *idev);
/*
* Prepare the header of the message to be sent to the device.
*/
static void
msg_header_prepare (struct egis_msg *msg)
{
msg->magic[0] = 'E';
msg->magic[1] = 'G';
msg->magic[2] = 'I';
msg->magic[3] = 'S';
msg->magic[4] = 0x09;
}
/*
* Check that the header of the received message is correct.
*/
static int
msg_header_check (struct egis_msg *msg)
{
if (msg->magic[0] == 'S' && msg->magic[1] == 'I' &&
msg->magic[2] == 'G' && msg->magic[3] == 'E' &&
msg->magic[4] == 0x0A)
return 0;
return -1;
}
/*
* Prepare message to ask for a frame.
*/
static void
msg_get_frame (FpiDeviceEtes603 *self,
guint8 use_gvv, guint8 gain, guint8 vrt,
guint8 vrb)
{
struct egis_msg *msg = self->req;
msg_header_prepare (msg);
msg->cmd = CMD_READ_FRAME;
msg->egis_readf.length_factor = 0x01;
/* length should be 0xC0 */
msg->egis_readf.length = FRAME_WIDTH;
msg->egis_readf.use_gvv = use_gvv;
/* if use_gvv is set, gain/vrt/vrb are used */
msg->egis_readf.gain = gain;
msg->egis_readf.vrt = vrt;
msg->egis_readf.vrb = vrb;
self->req_len = MSG_HDR_SIZE + 6;
self->ans_len = FRAME_SIZE;
}
/*
* Prepare message to ask for a fingerprint frame.
*/
static void
msg_get_fp (FpiDeviceEtes603 *self, guint8 len0, guint8 len1,
guint8 v2, guint8 v3, guint8 v4)
{
struct egis_msg *msg = self->req;
msg_header_prepare (msg);
msg->cmd = CMD_READ_FE;
/* Unknown values and always same on captured frames.
* 1st 2nd bytes is unsigned short for height, but only on value range
* 0x01 0xF4 (500), 0x02 0x00 (512), 0x02 0xF4 (756) are ok
*/
msg->egis_readfp.len[0] = len0;
msg->egis_readfp.len[1] = len1;
/* 3rd byte : ?? but changes frame size
* 4th byte : 0x00 -> can change width
* 5th byte : motion sensibility?
*/
msg->egis_readfp.val[0] = v2;
msg->egis_readfp.val[1] = v3;
msg->egis_readfp.val[2] = v4;
self->req_len = MSG_HDR_SIZE + 5;
self->ans_len = FE_SIZE;
}
/*
* Prepare message to read registers from the sensor.
* Variadic argument pattern: int reg, ...
*/
static void
msg_get_regs (FpiDeviceEtes603 *self, int n_args, ... )
{
struct egis_msg *msg = self->req;
va_list ap;
int i;
g_assert (n_args > 0 && n_args <= REG_MAX);
msg_header_prepare (msg);
msg->cmd = CMD_READ_REG;
msg->egis_readreg.nb = n_args;
va_start (ap, n_args);
for (i = 0; i < n_args; i++)
msg->egis_readreg.regs[i] = va_arg (ap, int);
va_end (ap);
self->req_len = MSG_HDR_SIZE + 1 + n_args;
self->ans_len = MSG_HDR_SIZE + 1 + n_args;
}
/*
* Parse the result of read register command.
*/
static int
msg_parse_regs (FpiDeviceEtes603 *dev)
{
size_t i, n_args;
struct egis_msg *msg_req = dev->req;
struct egis_msg *msg_ans = dev->ans;
n_args = dev->ans_len - MSG_HDR_SIZE;
if (msg_header_check (msg_ans))
return -1;
if (msg_ans->cmd != CMD_OK)
return -2;
for (i = 0; i < n_args; i++)
{
int reg = msg_req->egis_readreg.regs[i];
dev->regs[reg] = msg_ans->sige_readreg.regs[i];
}
return 0;
}
/*
* Prepare message to write sensor's registers.
* Variadic arguments are: int reg, int val, ...
*/
static void
msg_set_regs (FpiDeviceEtes603 *self, int n_args, ...)
{
struct egis_msg *msg = self->req;
va_list ap;
int i;
g_assert (n_args != 0 && n_args % 2 == 0 && n_args <= REG_MAX * 2);
msg_header_prepare (msg);
msg->cmd = CMD_WRITE_REG;
msg->egis_writereg.nb = n_args / 2;
va_start (ap, n_args);
for (i = 0; i < n_args / 2; i++)
{
msg->egis_writereg.regs[i].reg = va_arg (ap, int);
msg->egis_writereg.regs[i].val = va_arg (ap, int);
}
va_end (ap);
self->req_len = MSG_HDR_SIZE + 1 + n_args;
self->ans_len = MSG_HDR_SIZE + 1;
}
static int
msg_check_ok (FpiDeviceEtes603 *dev)
{
struct egis_msg *msg = dev->ans;
if (msg_header_check (msg))
goto err;
if (msg->cmd != CMD_OK)
goto err;
return 0;
err:
return -1;
}
/*
* Check the model of the sensor.
*/
static int
check_info (FpiDeviceEtes603 *dev)
{
if (dev->regs[0x70] == 0x4A && dev->regs[0x71] == 0x44 &&
dev->regs[0x72] == 0x49 && dev->regs[0x73] == 0x31)
return 0;
fp_err ("unknown device parameters (REG_70:%02X REG_71:%02X "
"REG_FIRMWARE:%02X REG_VERSION:%02X)",
dev->regs[0x70], dev->regs[0x71], dev->regs[0x72],
dev->regs[0x73]);
return -1;
}
static void
msg_get_cmd20 (FpiDeviceEtes603 *dev)
{
struct egis_msg *msg = dev->req;
msg_header_prepare (msg);
msg->cmd = CMD_20;
dev->req_len = MSG_HDR_SIZE;
}
static int
msg_check_cmd20 (FpiDeviceEtes603 *dev)
{
struct egis_msg *msg = dev->ans;
if (msg_header_check (msg))
{
fp_err ("msg_header_check failed");
return -1;
}
/* status or flashtype/flashinfo or ? */
if (msg->cmd != 0x05 ||
msg->sige_misc.val[0] != 0x00 ||
msg->sige_misc.val[1] != 0x00)
fp_warn ("unexpected answer CMD_20 from device(%02X %02X %02X)",
msg->cmd, msg->sige_misc.val[0], msg->sige_misc.val[1]);
return 0;
}
static void
msg_get_cmd25 (FpiDeviceEtes603 *dev)
{
struct egis_msg *msg = dev->req;
msg_header_prepare (msg);
msg->cmd = CMD_25;
dev->req_len = MSG_HDR_SIZE;
}
static int
msg_check_cmd25 (FpiDeviceEtes603 *dev)
{
struct egis_msg *msg = dev->ans;
if (msg_header_check (msg))
{
fp_err ("msg_header_check failed");
goto err;
}
if (msg->cmd != CMD_OK)
{
fp_err ("CMD_OK failed");
goto err;
}
/* flashtype or status or ? */
if (msg->sige_misc.val[0] != 0x00)
fp_warn ("unexpected answer for CMD_25 (%02X)",
msg->sige_misc.val[0]);
return 0;
err:
return -1;
}
static void
msg_set_mode_control (FpiDeviceEtes603 *self, guint8 mode)
{
msg_set_regs (self, 2, REG_MODE_CONTROL, mode);
}
/* Processing functions */
/*
* Return the brightness of a 4bpp frame
*/
static unsigned int
process_get_brightness (guint8 *f, size_t s)
{
unsigned int i, sum = 0;
for (i = 0; i < s; i++)
{
sum += f[i] >> 4;
sum += f[i] & 0x0F;
}
return sum;
}
/*
* Return the histogram of a 4bpp frame
*/
static void
process_hist (guint8 *f, size_t s, float stat[5])
{
float hist[16];
float black_mean, white_mean;
int i;
/* Clean histogram */
for (i = 0; i < 16; i++)
hist[i] = 0.0;
for (i = 0; i < s; i++)
{
hist[f[i] >> 4]++;
hist[f[i] & 0x0F]++;
}
/* histogram average */
for (i = 0; i < 16; i++)
hist[i] = hist[i] / (s * 2);
/* Average black/white pixels (full black and full white pixels
* are excluded). */
black_mean = white_mean = 0.0;
for (i = 1; i < 8; i++)
black_mean += hist[i];
for (i = 8; i < 15; i++)
white_mean += hist[i];
stat[0] = hist[0];
stat[1] = black_mean;
stat[2] = black_mean + white_mean;
stat[3] = white_mean;
stat[4] = hist[15];
fp_dbg ("fullb=%6f black=%6f grey=%6f white=%6f fullw=%6f",
hist[0], black_mean, black_mean + white_mean, white_mean,
hist[15]);
}
/*
* Return true if the frame is almost empty.
*/
static int
process_frame_empty (guint8 *frame, size_t size)
{
unsigned int sum = process_get_brightness (frame, size);
/* Allow an average of 'threshold' luminosity per pixel */
if (sum < size)
return 1;
return 0;
}
/* Transform 4 bits image to 8 bits image */
static void
process_4to8_bpp (guint8 *input, unsigned int input_size,
guint8 *output)
{
unsigned int i, j = 0;
for (i = 0; i < input_size; i++, j += 2)
{
/* 16 gray levels transform to 256 levels using << 4 */
output[j] = input[i] & 0xF0;
output[j + 1] = input[i] << 4;
}
}
/*
* Remove duplicated lines at the end of a fingerprint.
*/
static void
process_removefpi_end (FpiDeviceEtes603 *dev)
{
unsigned int i;
/* 2 last lines with Fly-Estimation are the empty pattern. */
guint8 *pattern = dev->fp + (dev->fp_height - 2) * FE_WIDTH / 2;
for (i = 2; i < dev->fp_height; i += 2)
if (memcmp (pattern, pattern - (i * FE_WIDTH / 2), FE_WIDTH))
break;
dev->fp_height -= i;
fp_dbg ("Removing %d empty lines from image", i - 2);
}
static void
reset_param (FpiDeviceEtes603 *dev)
{
dev->dcoffset = 0;
dev->vrt = 0;
dev->vrb = 0;
dev->gain = 0;
}
/* Asynchronous stuff */
enum {
INIT_CHECK_INFO_REQ,
INIT_CHECK_INFO_ANS,
INIT_CMD20_REQ,
INIT_CMD20_ANS,
INIT_CMD25_REQ,
INIT_CMD25_ANS,
INIT_SENSOR_REQ,
INIT_SENSOR_ANS,
INIT_ENC_REQ,
INIT_ENC_ANS,
INIT_REGS_REQ,
INIT_REGS_ANS,
INIT_NUM_STATES
};
enum {
TUNEDC_INIT,
TUNEDC_SET_DCOFFSET_REQ,
TUNEDC_SET_DCOFFSET_ANS,
TUNEDC_GET_FRAME_REQ,
TUNEDC_GET_FRAME_ANS,
TUNEDC_FINAL_SET_REG2122_REQ,
TUNEDC_FINAL_SET_REG2122_ANS,
TUNEDC_FINAL_SET_GAIN_REQ,
TUNEDC_FINAL_SET_GAIN_ANS,
TUNEDC_FINAL_SET_DCOFFSET_REQ,
TUNEDC_FINAL_SET_DCOFFSET_ANS,
TUNEDC_NUM_STATES
};
enum {
TUNEVRB_INIT,
TUNEVRB_GET_GAIN_REQ,
TUNEVRB_GET_GAIN_ANS,
TUNEVRB_GET_DCOFFSET_REQ,
TUNEVRB_GET_DCOFFSET_ANS,
TUNEVRB_SET_DCOFFSET_REQ,
TUNEVRB_SET_DCOFFSET_ANS,
TUNEVRB_FRAME_REQ,
TUNEVRB_FRAME_ANS,
TUNEVRB_FINAL_SET_DCOFFSET_REQ,
TUNEVRB_FINAL_SET_DCOFFSET_ANS,
TUNEVRB_FINAL_SET_REG2627_REQ,
TUNEVRB_FINAL_SET_REG2627_ANS,
TUNEVRB_FINAL_SET_GAINVRTVRB_REQ,
TUNEVRB_FINAL_SET_GAINVRTVRB_ANS,
TUNEVRB_FINAL_SET_MODE_SLEEP_REQ,
TUNEVRB_FINAL_SET_MODE_SLEEP_ANS,
TUNEVRB_NUM_STATES
};
enum {
FGR_FPA_INIT_SET_MODE_SLEEP_REQ,
FGR_FPA_INIT_SET_MODE_SLEEP_ANS,
FGR_FPA_INIT_SET_DCOFFSET_REQ,
FGR_FPA_INIT_SET_DCOFFSET_ANS,
FGR_FPA_INIT_SET_GAINVRTVRB_REQ,
FGR_FPA_INIT_SET_GAINVRTVRB_ANS,
FGR_FPA_INIT_SET_VCO_CONTROL_RT_REQ,
FGR_FPA_INIT_SET_VCO_CONTROL_RT_ANS,
FGR_FPA_INIT_SET_REG04_REQ,
FGR_FPA_INIT_SET_REG04_ANS,
FGR_FPA_INIT_SET_MODE_SENSOR_REQ,
FGR_FPA_INIT_SET_MODE_SENSOR_ANS,
FGR_FPA_GET_FRAME_REQ,
FGR_FPA_GET_FRAME_ANS,
FGR_NUM_STATES
};
enum {
CAP_FP_INIT_SET_REG10_REQ,
CAP_FP_INIT_SET_REG10_ANS,
CAP_FP_INIT_SET_MODE_FP_REQ,
CAP_FP_INIT_SET_MODE_FP_ANS,
CAP_FP_GET_FP_REQ,
CAP_FP_GET_FP_ANS,
CAP_NUM_STATES
};
enum {
EXIT_SET_REGS_REQ,
EXIT_SET_REGS_ANS,
EXIT_NUM_STATES
};
static void
async_tx (FpDevice *dev, unsigned int ep, void *cb,
FpiSsm *ssm)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
FpiUsbTransfer *transfer = fpi_usb_transfer_new (dev);
unsigned char *buffer = NULL;
int length;
if (ep == EP_OUT)
{
buffer = (unsigned char *) self->req;
length = self->req_len;
}
else if (ep == EP_IN)
{
buffer = (unsigned char *) self->ans;
length = self->ans_len;
}
else
{
g_assert_not_reached ();
}
transfer->ssm = ssm;
fpi_usb_transfer_fill_bulk_full (transfer, ep, buffer, length, NULL);
fpi_usb_transfer_submit (transfer, BULK_TIMEOUT, NULL, cb, NULL);
}
static void
async_tx_cb (FpiUsbTransfer *transfer, FpDevice *device,
gpointer user_data, GError *error)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (device);
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
if (error)
{
fp_warn ("transfer is not completed (result: %s)",
error->message);
fpi_ssm_mark_failed (transfer->ssm, error);
}
else
{
unsigned char endpoint = transfer->endpoint;
int actual_length = transfer->actual_length;
int length = transfer->length;
if (endpoint == EP_OUT)
{
if (length != actual_length)
fp_warn ("length %d != actual_length %d",
length, actual_length);
/* Chained with the answer */
async_tx (device, EP_IN, async_tx_cb, transfer->ssm);
}
else if (endpoint == EP_IN)
{
self->ans_len = actual_length;
fpi_ssm_next_state (transfer->ssm);
}
}
}
static void
m_exit_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
switch (fpi_ssm_get_cur_state (ssm))
{
case EXIT_SET_REGS_REQ:
msg_set_regs (self, 4, REG_VCO_CONTROL, REG_VCO_IDLE,
REG_MODE_CONTROL, REG_MODE_SLEEP);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case EXIT_SET_REGS_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_mark_completed (ssm);
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_exit_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
if (error)
fp_err ("Error switching the device to idle state");
else
fp_dbg ("The device is now in idle state");
fpi_image_device_deactivate_complete (idev, error);
}
static void
m_exit_start (FpImageDevice *idev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
FpiSsm *ssm = fpi_ssm_new (FP_DEVICE (idev), m_exit_state, EXIT_NUM_STATES);
self->is_active = FALSE;
fp_dbg ("Switching device to idle mode");
fpi_ssm_start (ssm, m_exit_complete);
}
static void
m_capture_state (FpiSsm *ssm, FpDevice *dev)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (self->is_active == FALSE)
{
fpi_ssm_mark_completed (ssm);
return;
}
switch (fpi_ssm_get_cur_state (ssm))
{
case CAP_FP_INIT_SET_REG10_REQ:
/* Reset fingerprint */
fp_dbg ("Capturing a fingerprint...");
memset (self->fp, 0, FE_SIZE * 2);
self->fp_height = 0;
msg_set_regs (self, 2, REG_10, 0x92);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case CAP_FP_INIT_SET_REG10_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case CAP_FP_INIT_SET_MODE_FP_REQ:
msg_set_mode_control (self, REG_MODE_FP);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case CAP_FP_INIT_SET_MODE_FP_ANS:
if (msg_check_ok (self))
goto err;
fp_dbg ("Capturing a 1st frame...");
fpi_ssm_next_state (ssm);
break;
case CAP_FP_GET_FP_REQ:
msg_get_fp (self, 0x01, 0xF4, 0x02, 0x01, 0x64);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case CAP_FP_GET_FP_ANS:
memcpy (self->fp + self->fp_height * FE_WIDTH / 2, self->ans,
FE_SIZE);
self->fp_height += FE_HEIGHT;
if (self->fp_height <= FE_HEIGHT)
{
/* 2 lines are at least removed each time */
self->fp_height -= 2;
fp_dbg ("Capturing a 2nd frame...");
fpi_ssm_jump_to_state (ssm, CAP_FP_GET_FP_REQ);
}
else
{
/* Remove empty parts 2 times for the 2 frames */
process_removefpi_end (self);
process_removefpi_end (self);
if (self->fp_height >= FE_WIDTH)
{
FpImage *img = fp_image_new (FE_WIDTH, self->fp_height);
unsigned int img_size = self->fp_height * FE_WIDTH;
/* Images received are white on black, so invert it. */
/* TODO detect sweep direction */
img->flags = FPI_IMAGE_COLORS_INVERTED | FPI_IMAGE_V_FLIPPED;
img->height = self->fp_height;
process_4to8_bpp (self->fp, img_size / 2, img->data);
fp_dbg ("Sending the raw fingerprint image (%dx%d)",
img->width, img->height);
fpi_image_device_image_captured (idev, img);
}
else
{
fpi_image_device_retry_scan (idev, FP_DEVICE_RETRY_TOO_SHORT);
}
fpi_image_device_report_finger_status (idev, FALSE);
fpi_ssm_mark_completed (ssm);
}
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_capture_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (error)
{
if (self->is_active)
{
fp_err ("Error while capturing fingerprint "
"(%s)", error->message);
fpi_image_device_session_error (idev, error);
}
else
{
g_error_free (error);
}
}
if (self->is_active == TRUE)
{
fp_dbg ("Device is still active, restarting finger detection");
m_start_fingerdetect (idev);
}
else
{
fp_dbg ("And it's over.");
m_exit_start (idev);
}
}
static void
m_finger_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (self->is_active == FALSE)
{
fpi_ssm_mark_completed (ssm);
return;
}
switch (fpi_ssm_get_cur_state (ssm))
{
case FGR_FPA_INIT_SET_MODE_SLEEP_REQ:
msg_set_mode_control (self, REG_MODE_SLEEP);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_MODE_SLEEP_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_INIT_SET_DCOFFSET_REQ:
msg_set_regs (self, 2, REG_DCOFFSET, self->dcoffset);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_DCOFFSET_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_INIT_SET_GAINVRTVRB_REQ:
msg_set_regs (self, 6, REG_GAIN, self->gain, REG_VRT,
self->vrt,
REG_VRB, self->vrb);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_GAINVRTVRB_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_INIT_SET_VCO_CONTROL_RT_REQ:
msg_set_regs (self, 2, REG_VCO_CONTROL, REG_VCO_RT);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_VCO_CONTROL_RT_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_INIT_SET_REG04_REQ:
msg_set_regs (self, 2, REG_04, 0x00);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_REG04_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_INIT_SET_MODE_SENSOR_REQ:
msg_set_mode_control (self, REG_MODE_SENSOR);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_INIT_SET_MODE_SENSOR_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case FGR_FPA_GET_FRAME_REQ:
msg_get_frame (self, 0x00, 0x00, 0x00, 0x00);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case FGR_FPA_GET_FRAME_ANS:
if (process_frame_empty ((guint8 *) self->ans, FRAME_SIZE))
{
fpi_ssm_jump_to_state (ssm, FGR_FPA_GET_FRAME_REQ);
}
else
{
fpi_image_device_report_finger_status (FP_IMAGE_DEVICE (dev), TRUE);
fpi_ssm_mark_completed (ssm);
}
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_finger_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (!error)
{
FpiSsm *ssm_cap;
ssm_cap = fpi_ssm_new (dev, m_capture_state, CAP_NUM_STATES);
fpi_ssm_start (ssm_cap, m_capture_complete);
}
else
{
if (self->is_active)
{
fp_err ("Error while capturing fingerprint "
"(%s)", error->message);
fpi_image_device_session_error (idev, error);
}
else
{
m_exit_start (idev);
g_error_free (error);
}
self->is_active = FALSE;
}
}
static void
m_start_fingerdetect (FpImageDevice *idev)
{
FpiSsm *ssmf;
ssmf = fpi_ssm_new (FP_DEVICE (idev), m_finger_state, FGR_NUM_STATES);
fpi_ssm_start (ssmf, m_finger_complete);
}
/*
* Tune value of VRT and VRB for contrast and brightness.
*/
static void
m_tunevrb_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
float hist[5];
if (self->is_active == FALSE)
{
fpi_ssm_mark_completed (ssm);
return;
}
switch (fpi_ssm_get_cur_state (ssm))
{
case TUNEVRB_INIT:
fp_dbg ("Tuning of VRT/VRB");
g_assert (self->dcoffset);
/* VRT(reg E1)=0x0A and VRB(reg E2)=0x10 are starting values */
self->vrt = 0x0A;
self->vrb = 0x10;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_GET_GAIN_REQ:
msg_get_regs (self, 1, REG_GAIN);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_GET_GAIN_ANS:
if (msg_parse_regs (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_GET_DCOFFSET_REQ:
msg_get_regs (self, 1, REG_DCOFFSET);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_GET_DCOFFSET_ANS:
if (msg_parse_regs (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_SET_DCOFFSET_REQ:
/* Reduce DCoffset by 1 to allow tuning */
msg_set_regs (self, 2, REG_DCOFFSET, self->dcoffset - 1);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_SET_DCOFFSET_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_FRAME_REQ:
fp_dbg ("Testing VRT=0x%02X VRB=0x%02X", self->vrt, self->vrb);
msg_get_frame (self, 0x01, self->gain, self->vrt, self->vrb);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_FRAME_ANS:
process_hist ((guint8 *) self->ans, FRAME_SIZE, hist);
/* Note that this tuning could probably be improved */
if (hist[0] + hist[1] > 0.95)
{
if (self->vrt <= 0 || self->vrb <= 0)
{
fp_dbg ("Image is too dark, reducing DCOffset");
self->dcoffset--;
fpi_ssm_jump_to_state (ssm, TUNEVRB_INIT);
}
else
{
self->vrt--;
self->vrb--;
fpi_ssm_jump_to_state (ssm, TUNEVRB_FRAME_REQ);
}
break;
}
if (hist[4] > 0.95)
{
fp_dbg ("Image is too bright, increasing DCOffset");
self->dcoffset++;
fpi_ssm_jump_to_state (ssm, TUNEVRB_INIT);
break;
}
if (hist[4] + hist[3] > 0.4)
{
if (self->vrt >= 2 * self->vrb - 0x0a)
{
self->vrt++;
self->vrb++;
}
else
{
self->vrt++;
}
/* Check maximum for vrt/vrb */
/* TODO if maximum is reached, leave with an error? */
if (self->vrt > VRT_MAX)
self->vrt = VRT_MAX;
if (self->vrb > VRB_MAX)
self->vrb = VRB_MAX;
fpi_ssm_jump_to_state (ssm, TUNEVRB_FRAME_REQ);
break;
}
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_FINAL_SET_DCOFFSET_REQ:
fp_dbg ("-> VRT=0x%02X VRB=0x%02X", self->vrt, self->vrb);
/* Reset the DCOffset */
msg_set_regs (self, 2, REG_DCOFFSET, self->dcoffset);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_FINAL_SET_DCOFFSET_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_FINAL_SET_REG2627_REQ:
/* In traces, REG_26/REG_27 are set. purpose? values? */
msg_set_regs (self, 4, REG_26, 0x11, REG_27, 0x00);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_FINAL_SET_REG2627_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_FINAL_SET_GAINVRTVRB_REQ:
/* Set Gain/VRT/VRB values found */
msg_set_regs (self, 6, REG_GAIN, self->gain, REG_VRT,
self->vrt,
REG_VRB, self->vrb);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_FINAL_SET_GAINVRTVRB_ANS:
if (msg_check_ok (self))
goto err;
/* In traces, Gain/VRT/VRB are read again. */
fpi_ssm_next_state (ssm);
break;
case TUNEVRB_FINAL_SET_MODE_SLEEP_REQ:
msg_set_mode_control (self, REG_MODE_SLEEP);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEVRB_FINAL_SET_MODE_SLEEP_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_mark_completed (ssm);
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_tunevrb_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
fpi_image_device_activate_complete (idev, error);
if (!error)
{
fp_dbg ("Tuning is done. Starting finger detection.");
m_start_fingerdetect (idev);
}
if (!self->is_active)
m_exit_start (idev);
}
/*
* This function tunes the DCoffset value and adjusts the gain value if
* required.
*/
static void
m_tunedc_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (self->is_active == FALSE)
{
fpi_ssm_mark_completed (ssm);
return;
}
/* TODO To get better results, tuning could be done 3 times as in
* captured traffic to make sure that the value is correct. */
/* The default gain should work but it may reach a DCOffset limit so in
* this case we decrease the gain. */
switch (fpi_ssm_get_cur_state (ssm))
{
case TUNEDC_INIT:
/* reg_e0 = 0x23 is sensor normal/small gain */
self->gain = GAIN_SMALL_INIT;
self->tunedc_min = DCOFFSET_MIN;
self->tunedc_max = DCOFFSET_MAX;
fp_dbg ("Tuning DCoffset");
fpi_ssm_next_state (ssm);
break;
case TUNEDC_SET_DCOFFSET_REQ:
/* Dichotomic search to find at which value the frame becomes
* almost black. */
self->dcoffset = (self->tunedc_max + self->tunedc_min) / 2;
fp_dbg ("Testing DCoffset=0x%02X Gain=0x%02X", self->dcoffset,
self->gain);
msg_set_regs (self, 2, REG_DCOFFSET, self->dcoffset);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEDC_SET_DCOFFSET_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEDC_GET_FRAME_REQ:
/* vrt:0x15 vrb:0x10 are constant in all tuning frames. */
msg_get_frame (self, 0x01, self->gain, 0x15, 0x10);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEDC_GET_FRAME_ANS:
if (process_frame_empty ((guint8 *) self->ans, FRAME_WIDTH))
self->tunedc_max = self->dcoffset;
else
self->tunedc_min = self->dcoffset;
if (self->tunedc_min + 1 < self->tunedc_max)
{
fpi_ssm_jump_to_state (ssm, TUNEDC_SET_DCOFFSET_REQ);
}
else if (self->tunedc_max < DCOFFSET_MAX)
{
self->dcoffset = self->tunedc_max + 1;
fpi_ssm_next_state (ssm);
}
else
{
self->gain--;
fpi_ssm_jump_to_state (ssm, TUNEDC_SET_DCOFFSET_REQ);
}
break;
case TUNEDC_FINAL_SET_REG2122_REQ:
fp_dbg ("-> DCoffset=0x%02X Gain=0x%02X", self->dcoffset,
self->gain);
/* ??? how reg21 / reg22 are calculated */
msg_set_regs (self, 4, REG_21, 0x23, REG_22, 0x21);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEDC_FINAL_SET_REG2122_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case TUNEDC_FINAL_SET_GAIN_REQ:
msg_set_regs (self, 2, REG_GAIN, self->gain);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEDC_FINAL_SET_GAIN_ANS:
fpi_ssm_next_state (ssm);
break;
case TUNEDC_FINAL_SET_DCOFFSET_REQ:
msg_set_regs (self, 2, REG_DCOFFSET, self->dcoffset);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case TUNEDC_FINAL_SET_DCOFFSET_ANS:
/* In captured traffic, read GAIN, VRT, and VRB registers. */
if (msg_check_ok (self))
goto err;
fpi_ssm_mark_completed (ssm);
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_tunedc_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
if (!error)
{
FpiSsm *ssm_tune;
ssm_tune = fpi_ssm_new (FP_DEVICE (idev), m_tunevrb_state,
TUNEVRB_NUM_STATES);
fpi_ssm_start (ssm_tune, m_tunevrb_complete);
}
else
{
fp_err ("Error while tuning DCOFFSET");
reset_param (FPI_DEVICE_ETES603 (dev));
fpi_image_device_session_error (idev, error);
}
if (!self->is_active)
m_exit_start (idev);
}
static void
m_init_state (FpiSsm *ssm, FpDevice *dev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (dev);
if (self->is_active == FALSE)
{
fpi_ssm_mark_completed (ssm);
return;
}
switch (fpi_ssm_get_cur_state (ssm))
{
case INIT_CHECK_INFO_REQ:
msg_get_regs (self, 4, REG_INFO0, REG_INFO1, REG_INFO2,
REG_INFO3);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_CHECK_INFO_ANS:
if (msg_parse_regs (self))
goto err;
if (check_info (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case INIT_CMD20_REQ:
msg_get_cmd20 (self);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_CMD20_ANS:
if (msg_check_cmd20 (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case INIT_CMD25_REQ:
msg_get_cmd25 (self);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_CMD25_ANS:
if (msg_check_cmd25 (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case INIT_SENSOR_REQ:
/* In captured traffic, those are split. */
msg_set_regs (self, 18, REG_MODE_CONTROL, REG_MODE_SLEEP,
REG_50, 0x0F, REG_GAIN, 0x04, REG_VRT, 0x08,
REG_VRB, 0x0D, REG_VCO_CONTROL, REG_VCO_RT,
REG_DCOFFSET, 0x36, REG_F0, 0x00, REG_F2, 0x00);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_SENSOR_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case INIT_ENC_REQ:
/* Initialize encryption registers without encryption. */
/* Set registers from 0x41 to 0x48 (0x8 regs) */
msg_set_regs (self, 16, REG_ENC1, 0x12, REG_ENC2, 0x34,
REG_ENC3, 0x56, REG_ENC4, 0x78, REG_ENC5, 0x90,
REG_ENC6, 0xAB, REG_ENC7, 0xCD, REG_ENC8, 0xEF);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_ENC_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_next_state (ssm);
break;
case INIT_REGS_REQ:
/* Set register from 0x20 to 0x37 (0x18 regs) */
msg_set_regs (self, 48,
REG_20, 0x00, REG_21, 0x23, REG_22, 0x21, REG_23,
0x20,
REG_24, 0x14, REG_25, 0x6A, REG_26, 0x00, REG_27,
0x00,
REG_28, 0x00, REG_29, 0xC0, REG_2A, 0x50, REG_2B,
0x50,
REG_2C, 0x4D, REG_2D, 0x03, REG_2E, 0x06, REG_2F,
0x06,
REG_30, 0x10, REG_31, 0x02, REG_32, 0x14, REG_33,
0x34,
REG_34, 0x01, REG_35, 0x08, REG_36, 0x03, REG_37,
0x21);
async_tx (dev, EP_OUT, async_tx_cb, ssm);
break;
case INIT_REGS_ANS:
if (msg_check_ok (self))
goto err;
fpi_ssm_mark_completed (ssm);
break;
default:
g_assert_not_reached ();
break;
}
return;
err:
fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO));
}
static void
m_init_complete (FpiSsm *ssm, FpDevice *dev, GError *error)
{
FpImageDevice *idev = FP_IMAGE_DEVICE (dev);
if (!error)
{
FpiSsm *ssm_tune;
ssm_tune = fpi_ssm_new (FP_DEVICE (idev), m_tunedc_state,
TUNEDC_NUM_STATES);
fpi_ssm_start (ssm_tune, m_tunedc_complete);
}
else
{
fp_err ("Error initializing the device");
reset_param (FPI_DEVICE_ETES603 (dev));
fpi_image_device_session_error (idev, error);
}
}
static void
dev_activate (FpImageDevice *idev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
FpiSsm *ssm;
g_assert (self);
/* Reset info and data */
self->is_active = TRUE;
if (self->dcoffset == 0)
{
fp_dbg ("Tuning device...");
ssm = fpi_ssm_new (FP_DEVICE (idev), m_init_state, INIT_NUM_STATES);
fpi_ssm_start (ssm, m_init_complete);
}
else
{
fp_dbg ("Using previous tuning (DCOFFSET=0x%02X,VRT=0x%02X,"
"VRB=0x%02X,GAIN=0x%02X).", self->dcoffset, self->vrt,
self->vrb, self->gain);
fpi_image_device_activate_complete (idev, NULL);
ssm = fpi_ssm_new (FP_DEVICE (idev), m_finger_state, FGR_NUM_STATES);
fpi_ssm_start (ssm, m_finger_complete);
}
}
static void
dev_deactivate (FpImageDevice *idev)
{
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
fp_dbg ("deactivating");
/* this can be called even if still activated. */
if (self->is_active == TRUE)
self->is_active = FALSE;
else
m_exit_start (idev);
}
static void
dev_open (FpImageDevice *idev)
{
GError *error = NULL;
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
if (!g_usb_device_claim_interface (fpi_device_get_usb_device (FP_DEVICE (idev)), 0, 0, &error))
{
fpi_image_device_open_complete (idev, error);
return;
}
self->req = g_malloc (sizeof (struct egis_msg));
self->ans = g_malloc (FE_SIZE);
self->fp = g_malloc (FE_SIZE * 4);
fpi_image_device_open_complete (idev, NULL);
}
static void
dev_close (FpImageDevice *idev)
{
GError *error = NULL;
FpiDeviceEtes603 *self = FPI_DEVICE_ETES603 (idev);
g_free (self->req);
g_free (self->ans);
g_free (self->fp);
g_usb_device_release_interface (fpi_device_get_usb_device (FP_DEVICE (idev)),
0, 0, &error);
fpi_image_device_close_complete (idev, error);
}
static const FpIdEntry id_table[] = {
/* EgisTec (aka Lightuning) ES603 */
{ .vid = 0x1c7a, .pid = 0x0603, },
{ .vid = 0, .pid = 0, .driver_data = 0 },
};
static void
fpi_device_etes603_init (FpiDeviceEtes603 *self)
{
}
static void
fpi_device_etes603_class_init (FpiDeviceEtes603Class *klass)
{
FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass);
FpImageDeviceClass *img_class = FP_IMAGE_DEVICE_CLASS (klass);
dev_class->id = "etes603";
dev_class->full_name = "EgisTec ES603";
dev_class->type = FP_DEVICE_TYPE_USB;
dev_class->id_table = id_table;
dev_class->scan_type = FP_SCAN_TYPE_SWIPE;
img_class->img_open = dev_open;
img_class->img_close = dev_close;
img_class->activate = dev_activate;
img_class->deactivate = dev_deactivate;
img_class->img_width = 256;
img_class->img_height = -1;
}
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