| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * AuthenTec AES3500/AES4000 common routines | ||
| 3 | * | ||
| 4 | * The AES3500 and AES4000 sensors are press-typed, and could capture | ||
| 5 | * fingerprint images in 128x128 and 96x96 pixels respectively. They | ||
| 6 | * share a same communication interface: a number of frames are | ||
| 7 | * transferred and captured, from which a final image could be | ||
| 8 | * assembled. Each frame has fixed height of 16 pixels. | ||
| 9 | * | ||
| 10 | * As the imaging area is a bit small, only a part of finger could be | ||
| 11 | * captured, the detected minutiae are not so many that the NBIS | ||
| 12 | * matching works not so good. The verification rate is very low at the | ||
| 13 | * moment. | ||
| 14 | * | ||
| 15 | * This work is derived from Daniel Drake's AES4000 driver. | ||
| 16 | * | ||
| 17 | * Copyright (C) 2013 Juvenn Woo <machese@gmail.com> | ||
| 18 | * Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org> | ||
| 19 | * | ||
| 20 | * This library is free software; you can redistribute it and/or modify | ||
| 21 | * it under the terms of the GNU Lesser General Public License as | ||
| 22 | * published by the Free Software Foundation; either version 2.1 of the | ||
| 23 | * License, or (at your option) any later version. | ||
| 24 | * | ||
| 25 | * This library is distributed in the hope that it will be useful, but | ||
| 26 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 28 | * Lesser General Public License for more details. | ||
| 29 | * | ||
| 30 | * You should have received a copy of the GNU Lesser General Public | ||
| 31 | * License along with this library; if not, write to the Free Software | ||
| 32 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
| 33 | * 02110-1301 USA | ||
| 34 | * | ||
| 35 | */ | ||
| 36 | |||
| 37 | #define FP_COMPONENT "aes3k" | ||
| 38 | |||
| 39 | #include "drivers_api.h" | ||
| 40 | #include "aeslib.h" | ||
| 41 | #include "aes3k.h" | ||
| 42 | |||
| 43 | typedef struct | ||
| 44 | { | ||
| 45 | /* This is used both as a flag that we are in a capture operation | ||
| 46 | * and for cancellation. | ||
| 47 | */ | ||
| 48 | GCancellable *img_capture_cancel; | ||
| 49 | } FpiDeviceAes3kPrivate; | ||
| 50 | |||
| 51 | #define CTRL_TIMEOUT 1000 | ||
| 52 | #define EP_IN (1 | FPI_USB_ENDPOINT_IN) | ||
| 53 | #define EP_OUT (2 | FPI_USB_ENDPOINT_OUT) | ||
| 54 | |||
| 55 | static void do_capture (FpImageDevice *dev); | ||
| 56 | |||
| 57 |
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972 | G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (FpiDeviceAes3k, fpi_device_aes3k, FP_TYPE_IMAGE_DEVICE); |
| 58 | |||
| 59 | static void | ||
| 60 | 8 | aes3k_assemble_image (unsigned char *input, size_t width, size_t height, | |
| 61 | unsigned char *output) | ||
| 62 | { | ||
| 63 | 8 | size_t row, column; | |
| 64 | |||
| 65 |
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1032 | for (column = 0; column < width; column++) |
| 66 | { | ||
| 67 |
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9216 | for (row = 0; row < height; row += 2) |
| 68 | { | ||
| 69 | 8192 | output[width * row + column] = (*input & 0x0f) * 17; | |
| 70 | 8192 | output[width * (row + 1) + column] = ((*input & 0xf0) >> 4) * 17; | |
| 71 | 8192 | input++; | |
| 72 | } | ||
| 73 | } | ||
| 74 | 8 | } | |
| 75 | |||
| 76 | static void | ||
| 77 | 1 | img_cb (FpiUsbTransfer *transfer, FpDevice *device, | |
| 78 | gpointer user_data, GError *error) | ||
| 79 | { | ||
| 80 | 1 | FpImageDevice *dev = FP_IMAGE_DEVICE (device); | |
| 81 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (device); | |
| 82 | 1 | FpiDeviceAes3kPrivate *priv = fpi_device_aes3k_get_instance_private (self); | |
| 83 |
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1 | FpiDeviceAes3kClass *cls = FPI_DEVICE_AES3K_GET_CLASS (self); |
| 84 | 1 | unsigned char *ptr = transfer->buffer; | |
| 85 | 1 | FpImage *tmp; | |
| 86 | 1 | FpImage *img; | |
| 87 | 1 | int i; | |
| 88 | |||
| 89 | /* Image capture operation is finished (error/completed) */ | ||
| 90 |
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1 | g_clear_object (&priv->img_capture_cancel); |
| 91 | |||
| 92 |
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1 | if (error) |
| 93 | { | ||
| 94 | ✗ | if (g_error_matches (error, | |
| 95 | G_IO_ERROR, | ||
| 96 | G_IO_ERROR_CANCELLED)) | ||
| 97 | { | ||
| 98 | /* Cancellation implies we are deactivating. */ | ||
| 99 | ✗ | g_error_free (error); | |
| 100 | ✗ | fpi_image_device_deactivate_complete (dev, NULL); | |
| 101 | ✗ | return; | |
| 102 | } | ||
| 103 | |||
| 104 | ✗ | fpi_image_device_session_error (dev, error); | |
| 105 | ✗ | return; | |
| 106 | } | ||
| 107 | |||
| 108 | 1 | fpi_image_device_report_finger_status (dev, TRUE); | |
| 109 | |||
| 110 | 1 | tmp = fp_image_new (cls->frame_width, cls->frame_width); | |
| 111 | 1 | tmp->width = cls->frame_width; | |
| 112 | 1 | tmp->height = cls->frame_width; | |
| 113 | 1 | tmp->flags = FPI_IMAGE_COLORS_INVERTED | FPI_IMAGE_V_FLIPPED | FPI_IMAGE_H_FLIPPED; | |
| 114 |
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9 | for (i = 0; i < cls->frame_number; i++) |
| 115 | { | ||
| 116 | 8 | fp_dbg ("frame header byte %02x", *ptr); | |
| 117 | 8 | ptr++; | |
| 118 | 8 | aes3k_assemble_image (ptr, cls->frame_width, AES3K_FRAME_HEIGHT, tmp->data + (i * cls->frame_width * AES3K_FRAME_HEIGHT)); | |
| 119 | 8 | ptr += cls->frame_size; | |
| 120 | } | ||
| 121 | |||
| 122 | /* FIXME: this is an ugly hack to make the image big enough for NBIS | ||
| 123 | * to process reliably */ | ||
| 124 | 1 | img = fpi_image_resize (tmp, cls->enlarge_factor, cls->enlarge_factor); | |
| 125 | 1 | g_object_unref (tmp); | |
| 126 | 1 | fpi_image_device_image_captured (dev, img); | |
| 127 | |||
| 128 | /* FIXME: rather than assuming finger has gone, we should poll regs until | ||
| 129 | * it really has. */ | ||
| 130 | 1 | fpi_image_device_report_finger_status (dev, FALSE); | |
| 131 | |||
| 132 | /* Note: The transfer is re-started when we switch to the AWAIT_FINGER_ON state. */ | ||
| 133 | } | ||
| 134 | |||
| 135 | static void | ||
| 136 | 1 | do_capture (FpImageDevice *dev) | |
| 137 | { | ||
| 138 | 2 | g_autoptr(FpiUsbTransfer) img_trf = NULL; | |
| 139 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 140 | 1 | FpiDeviceAes3kPrivate *priv = fpi_device_aes3k_get_instance_private (self); | |
| 141 | 1 | FpiDeviceAes3kClass *cls = FPI_DEVICE_AES3K_GET_CLASS (self); | |
| 142 | |||
| 143 | 1 | img_trf = fpi_usb_transfer_new (FP_DEVICE (dev)); | |
| 144 | 1 | fpi_usb_transfer_fill_bulk (img_trf, EP_IN, cls->data_buflen); | |
| 145 | 1 | img_trf->short_is_error = TRUE; | |
| 146 | 1 | fpi_usb_transfer_submit (g_steal_pointer (&img_trf), 0, | |
| 147 | priv->img_capture_cancel, | ||
| 148 | img_cb, NULL); | ||
| 149 | 1 | } | |
| 150 | |||
| 151 | static void | ||
| 152 | 1 | capture_reqs_cb (FpImageDevice *dev, GError *result, void *user_data) | |
| 153 | { | ||
| 154 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 155 | 1 | FpiDeviceAes3kPrivate *priv = fpi_device_aes3k_get_instance_private (self); | |
| 156 | |||
| 157 |
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1 | if (result) |
| 158 | { | ||
| 159 | ✗ | g_clear_object (&priv->img_capture_cancel); | |
| 160 | ✗ | fpi_image_device_session_error (dev, result); | |
| 161 | ✗ | return; | |
| 162 | } | ||
| 163 | |||
| 164 | /* FIXME: we never cancel a pending capture. So we are likely leaving the | ||
| 165 | * hardware in a bad state should we abort the capture operation and the | ||
| 166 | * user does not touch the device. | ||
| 167 | * But, we don't know how we might cancel, so just leave it as is. */ | ||
| 168 | 1 | do_capture (dev); | |
| 169 | } | ||
| 170 | |||
| 171 | static void | ||
| 172 | 1 | do_capture_start (FpImageDevice *dev) | |
| 173 | { | ||
| 174 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 175 | 1 | FpiDeviceAes3kClass *cls = FPI_DEVICE_AES3K_GET_CLASS (self); | |
| 176 | |||
| 177 | 1 | aes_write_regv (dev, cls->capture_reqs, cls->capture_reqs_len, capture_reqs_cb, NULL); | |
| 178 | 1 | } | |
| 179 | |||
| 180 | static void | ||
| 181 | 1 | init_reqs_cb (FpImageDevice *dev, GError *result, void *user_data) | |
| 182 | { | ||
| 183 | 1 | fpi_image_device_activate_complete (dev, result); | |
| 184 | 1 | } | |
| 185 | |||
| 186 | static void | ||
| 187 | 1 | aes3k_dev_activate (FpImageDevice *dev) | |
| 188 | { | ||
| 189 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 190 | 1 | FpiDeviceAes3kClass *cls = FPI_DEVICE_AES3K_GET_CLASS (self); | |
| 191 | |||
| 192 | 1 | aes_write_regv (dev, cls->init_reqs, cls->init_reqs_len, init_reqs_cb, NULL); | |
| 193 | 1 | } | |
| 194 | |||
| 195 | static void | ||
| 196 | 1 | aes3k_dev_deactivate (FpImageDevice *dev) | |
| 197 | { | ||
| 198 | 1 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 199 | 1 | FpiDeviceAes3kPrivate *priv = fpi_device_aes3k_get_instance_private (self); | |
| 200 | |||
| 201 | /* If a capture is running, then deactivation finishes from the cancellation handler */ | ||
| 202 |
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1 | if (priv->img_capture_cancel) |
| 203 | ✗ | g_cancellable_cancel (priv->img_capture_cancel); | |
| 204 | else | ||
| 205 | 1 | fpi_image_device_deactivate_complete (dev, NULL); | |
| 206 | 1 | } | |
| 207 | |||
| 208 | static void | ||
| 209 | 8 | aes3k_dev_change_state (FpImageDevice *dev, FpiImageDeviceState state) | |
| 210 | { | ||
| 211 | 8 | FpiDeviceAes3k *self = FPI_DEVICE_AES3K (dev); | |
| 212 | 8 | FpiDeviceAes3kPrivate *priv = fpi_device_aes3k_get_instance_private (self); | |
| 213 | |||
| 214 |
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8 | if (state == FPI_IMAGE_DEVICE_STATE_AWAIT_FINGER_ON) |
| 215 | { | ||
| 216 |
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1 | g_assert (!priv->img_capture_cancel); |
| 217 | 1 | priv->img_capture_cancel = g_cancellable_new (); | |
| 218 | |||
| 219 | 1 | do_capture_start (dev); | |
| 220 | } | ||
| 221 | 8 | } | |
| 222 | |||
| 223 | static void | ||
| 224 | 1 | fpi_device_aes3k_init (FpiDeviceAes3k *self) | |
| 225 | { | ||
| 226 | 1 | } | |
| 227 | |||
| 228 | static void | ||
| 229 | 1 | aes3k_dev_init (FpImageDevice *dev) | |
| 230 | { | ||
| 231 | 1 | GError *error = NULL; | |
| 232 | |||
| 233 |
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1 | if (!g_usb_device_claim_interface (fpi_device_get_usb_device (FP_DEVICE (dev)), 0, 0, &error)) |
| 234 | { | ||
| 235 | ✗ | fpi_image_device_open_complete (dev, error); | |
| 236 | ✗ | return; | |
| 237 | } | ||
| 238 | |||
| 239 | 1 | fpi_image_device_open_complete (dev, NULL); | |
| 240 | } | ||
| 241 | |||
| 242 | static void | ||
| 243 | 1 | aes3k_dev_deinit (FpImageDevice *dev) | |
| 244 | { | ||
| 245 | 1 | GError *error = NULL; | |
| 246 | |||
| 247 | 1 | g_usb_device_release_interface (fpi_device_get_usb_device (FP_DEVICE (dev)), | |
| 248 | 0, 0, &error); | ||
| 249 | 1 | fpi_image_device_close_complete (dev, error); | |
| 250 | 1 | } | |
| 251 | |||
| 252 | |||
| 253 | static void | ||
| 254 | 120 | fpi_device_aes3k_class_init (FpiDeviceAes3kClass *klass) | |
| 255 | { | ||
| 256 | 120 | FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass); | |
| 257 | 120 | FpImageDeviceClass *img_class = FP_IMAGE_DEVICE_CLASS (klass); | |
| 258 | |||
| 259 | 120 | dev_class->type = FP_DEVICE_TYPE_USB; | |
| 260 | 120 | dev_class->scan_type = FP_SCAN_TYPE_PRESS; | |
| 261 | |||
| 262 | 120 | img_class->img_open = aes3k_dev_init; | |
| 263 | 120 | img_class->img_close = aes3k_dev_deinit; | |
| 264 | 120 | img_class->activate = aes3k_dev_activate; | |
| 265 | 120 | img_class->change_state = aes3k_dev_change_state; | |
| 266 | 120 | img_class->deactivate = aes3k_dev_deactivate; | |
| 267 | |||
| 268 | /* Extremely low due to low image quality. */ | ||
| 269 | 120 | img_class->bz3_threshold = 9; | |
| 270 | |||
| 271 | /* Everything else is set by the subclasses. */ | ||
| 272 | } | ||
| 273 |