| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Validity VFS0050 driver for libfprint | ||
| 3 | * Copyright (C) 2015-2016 Konstantin Semenov <zemen17@gmail.com> | ||
| 4 | * | ||
| 5 | * This library is free software; you can redistribute it and/or | ||
| 6 | * modify it under the terms of the GNU Lesser General Public | ||
| 7 | * License as published by the Free Software Foundation; either | ||
| 8 | * version 2.1 of the License, or (at your option) any later version. | ||
| 9 | * | ||
| 10 | * This library is distributed in the hope that it will be useful, | ||
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 13 | * Lesser General Public License for more details. | ||
| 14 | * | ||
| 15 | * You should have received a copy of the GNU Lesser General Public | ||
| 16 | * License along with this library; if not, write to the Free Software | ||
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 18 | */ | ||
| 19 | |||
| 20 | #define FP_COMPONENT "vfs0050" | ||
| 21 | |||
| 22 | #include "drivers_api.h" | ||
| 23 | #include "vfs0050.h" | ||
| 24 | |||
| 25 |
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750 | G_DEFINE_TYPE (FpDeviceVfs0050, fpi_device_vfs0050, FP_TYPE_IMAGE_DEVICE) |
| 26 | |||
| 27 | /* USB functions */ | ||
| 28 | |||
| 29 | /* Callback for async_write */ | ||
| 30 | static void | ||
| 31 | 14 | async_write_callback (FpiUsbTransfer *transfer, FpDevice *device, | |
| 32 | gpointer user_data, GError *error) | ||
| 33 | { | ||
| 34 |
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14 | if (error) |
| 35 | { | ||
| 36 | ✗ | fp_err ("USB write transfer: %s", error->message); | |
| 37 | ✗ | fpi_ssm_mark_failed (transfer->ssm, error); | |
| 38 | ✗ | return; | |
| 39 | } | ||
| 40 | |||
| 41 | 14 | fpi_ssm_next_state (transfer->ssm); | |
| 42 | } | ||
| 43 | |||
| 44 | /* Send data to EP1, the only out endpoint */ | ||
| 45 | FP_GNUC_ACCESS (read_only, 3, 4) | ||
| 46 | static void | ||
| 47 | 14 | async_write (FpiSsm *ssm, | |
| 48 | FpDevice *dev, | ||
| 49 | void *data, | ||
| 50 | int len) | ||
| 51 | { | ||
| 52 | 14 | FpiUsbTransfer *transfer; | |
| 53 | |||
| 54 | 14 | transfer = fpi_usb_transfer_new (FP_DEVICE (dev)); | |
| 55 | 14 | fpi_usb_transfer_fill_bulk_full (transfer, 0x01, data, len, NULL); | |
| 56 | 14 | transfer->ssm = ssm; | |
| 57 | 14 | transfer->short_is_error = TRUE; | |
| 58 | 14 | fpi_usb_transfer_submit (transfer, VFS_USB_TIMEOUT, NULL, | |
| 59 | async_write_callback, NULL); | ||
| 60 | 14 | } | |
| 61 | |||
| 62 | /* Callback for async_read */ | ||
| 63 | static void | ||
| 64 | 18 | async_read_callback (FpiUsbTransfer *transfer, FpDevice *device, | |
| 65 | gpointer user_data, GError *error) | ||
| 66 | { | ||
| 67 | 18 | int ep = transfer->endpoint; | |
| 68 | |||
| 69 |
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18 | if (error) |
| 70 | { | ||
| 71 | ✗ | fp_err ("USB read transfer on endpoint %d: %s", ep - 0x80, | |
| 72 | error->message); | ||
| 73 | ✗ | fpi_ssm_mark_failed (transfer->ssm, error); | |
| 74 | ✗ | return; | |
| 75 | } | ||
| 76 | |||
| 77 | 18 | fpi_ssm_next_state (transfer->ssm); | |
| 78 | } | ||
| 79 | |||
| 80 | /* Receive data from the given ep and either discard or fill the given buffer */ | ||
| 81 | static void | ||
| 82 | 18 | async_read (FpiSsm *ssm, | |
| 83 | FpDevice *dev, | ||
| 84 | int ep, | ||
| 85 | void *data, | ||
| 86 | int len) | ||
| 87 | { | ||
| 88 | 18 | FpiUsbTransfer *transfer; | |
| 89 | 18 | GDestroyNotify free_func = NULL; | |
| 90 | |||
| 91 | 18 | ep |= FPI_USB_ENDPOINT_IN; | |
| 92 | |||
| 93 | 18 | transfer = fpi_usb_transfer_new (FP_DEVICE (dev)); | |
| 94 | 18 | transfer->ssm = ssm; | |
| 95 | 18 | transfer->short_is_error = TRUE; | |
| 96 | |||
| 97 |
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18 | if (data == NULL) |
| 98 | { | ||
| 99 | 14 | data = g_malloc0 (len); | |
| 100 | 14 | free_func = g_free; | |
| 101 | } | ||
| 102 | |||
| 103 | /* 0x83 is the only interrupt endpoint */ | ||
| 104 |
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18 | if (ep == EP3_IN) |
| 105 | 4 | fpi_usb_transfer_fill_interrupt_full (transfer, ep, data, len, free_func); | |
| 106 | else | ||
| 107 | 14 | fpi_usb_transfer_fill_bulk_full (transfer, ep, data, len, free_func); | |
| 108 | |||
| 109 | 18 | fpi_usb_transfer_submit (transfer, VFS_USB_TIMEOUT, NULL, | |
| 110 | async_read_callback, NULL); | ||
| 111 | 18 | } | |
| 112 | |||
| 113 | /* Callback for async_abort */ | ||
| 114 | static void | ||
| 115 | 16 | async_abort_callback (FpiUsbTransfer *transfer, FpDevice *device, | |
| 116 | gpointer user_data, GError *error) | ||
| 117 | { | ||
| 118 | 16 | int ep = transfer->endpoint; | |
| 119 | |||
| 120 | /* In normal case endpoint is empty */ | ||
| 121 |
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32 | if (g_error_matches (error, G_USB_DEVICE_ERROR, G_USB_DEVICE_ERROR_TIMED_OUT) || |
| 122 |
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32 | (g_strcmp0 (g_getenv ("FP_DEVICE_EMULATION"), "1") == 0 && transfer->actual_length == 0)) |
| 123 | { | ||
| 124 | 16 | g_clear_error (&error); | |
| 125 | 16 | fpi_ssm_next_state (transfer->ssm); | |
| 126 | 16 | return; | |
| 127 | } | ||
| 128 | |||
| 129 | ✗ | if (error) | |
| 130 | { | ||
| 131 | ✗ | fp_err ("USB write transfer: %s", error->message); | |
| 132 | ✗ | fpi_ssm_mark_failed (transfer->ssm, error); | |
| 133 | ✗ | return; | |
| 134 | } | ||
| 135 | |||
| 136 | /* Don't stop process, only print warning */ | ||
| 137 | ✗ | fp_warn ("Endpoint %d had extra %zd bytes readable", ep - 0x80, | |
| 138 | transfer->actual_length); | ||
| 139 | |||
| 140 | ✗ | fpi_ssm_jump_to_state (transfer->ssm, | |
| 141 | fpi_ssm_get_cur_state (transfer->ssm)); | ||
| 142 | } | ||
| 143 | |||
| 144 | /* Receive data from the given ep; continues to the next state once no | ||
| 145 | * more data is available. Otherwise the current state is repeated. */ | ||
| 146 | static void | ||
| 147 | 16 | async_abort (FpDevice *dev, FpiSsm *ssm, int ep) | |
| 148 | { | ||
| 149 | 16 | FpiUsbTransfer *transfer; | |
| 150 | |||
| 151 | 16 | ep |= FPI_USB_ENDPOINT_IN; | |
| 152 | |||
| 153 | 16 | transfer = fpi_usb_transfer_new (dev); | |
| 154 | |||
| 155 | /* 0x83 is the only interrupt endpoint */ | ||
| 156 |
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16 | if (ep == EP3_IN) |
| 157 | 6 | fpi_usb_transfer_fill_interrupt (transfer, ep, VFS_USB_BUFFER_SIZE); | |
| 158 | else | ||
| 159 | 10 | fpi_usb_transfer_fill_bulk (transfer, ep, VFS_USB_BUFFER_SIZE); | |
| 160 | |||
| 161 | 16 | transfer->ssm = ssm; | |
| 162 | |||
| 163 | 16 | fpi_usb_transfer_submit (transfer, VFS_USB_ABORT_TIMEOUT, NULL, | |
| 164 | async_abort_callback, NULL); | ||
| 165 | 16 | } | |
| 166 | |||
| 167 | /* Image processing functions */ | ||
| 168 | |||
| 169 | /* Pixel getter for fpi_assemble_lines */ | ||
| 170 | static unsigned char | ||
| 171 | 230200 | vfs0050_get_pixel (struct fpi_line_asmbl_ctx *ctx, | |
| 172 | GSList * line, unsigned int x) | ||
| 173 | { | ||
| 174 | 230200 | return ((struct vfs_line *) line->data)->data[x]; | |
| 175 | } | ||
| 176 | |||
| 177 | /* Deviation getter for fpi_assemble_lines */ | ||
| 178 | static int | ||
| 179 | 147500 | vfs0050_get_difference (struct fpi_line_asmbl_ctx *ctx, | |
| 180 | GSList * line_list_1, GSList * line_list_2) | ||
| 181 | { | ||
| 182 | 147500 | struct vfs_line *line1 = line_list_1->data; | |
| 183 | 147500 | struct vfs_line *line2 = line_list_2->data; | |
| 184 | 147500 | const int shift = (VFS_IMAGE_WIDTH - VFS_NEXT_LINE_WIDTH) / 2 - 1; | |
| 185 | 147500 | int res = 0; | |
| 186 | |||
| 187 |
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4867500 | for (int i = 0; i < VFS_NEXT_LINE_WIDTH; ++i) |
| 188 | { | ||
| 189 | 4720000 | int x = | |
| 190 | 4720000 | (int) line1->next_line_part[i] - (int) line2->data[shift + i]; | |
| 191 | 4720000 | res += x * x; | |
| 192 | } | ||
| 193 | 147500 | return res; | |
| 194 | } | ||
| 195 | |||
| 196 | #define VFS_NOISE_THRESHOLD 40 | ||
| 197 | |||
| 198 | /* Checks whether line is noise or not using hardware parameters */ | ||
| 199 | static char | ||
| 200 | 1 | is_noise (struct vfs_line *line) | |
| 201 | { | ||
| 202 | 1 | int val1 = line->noise_hash_1; | |
| 203 | 1 | int val2 = line->noise_hash_2; | |
| 204 | |||
| 205 | 1 | if (val1 > VFS_NOISE_THRESHOLD && | |
| 206 | val1 < 256 - VFS_NOISE_THRESHOLD && | ||
| 207 | ✗ | val2 > VFS_NOISE_THRESHOLD && val2 < 256 - VFS_NOISE_THRESHOLD) | |
| 208 | ✗ | return 1; | |
| 209 | return 0; | ||
| 210 | } | ||
| 211 | |||
| 212 | /* Parameters for fpi_assemble_lines */ | ||
| 213 | static struct fpi_line_asmbl_ctx assembling_ctx = { | ||
| 214 | .line_width = VFS_IMAGE_WIDTH, | ||
| 215 | .max_height = VFS_MAX_HEIGHT, | ||
| 216 | .resolution = 10, | ||
| 217 | .median_filter_size = 25, | ||
| 218 | .max_search_offset = 100, | ||
| 219 | .get_deviation = vfs0050_get_difference, | ||
| 220 | .get_pixel = vfs0050_get_pixel, | ||
| 221 | }; | ||
| 222 | |||
| 223 | /* Processes image before submitting */ | ||
| 224 | static FpImage * | ||
| 225 | 1 | prepare_image (FpDeviceVfs0050 *vdev) | |
| 226 | { | ||
| 227 | 1 | int height = vdev->bytes / VFS_LINE_SIZE; | |
| 228 | |||
| 229 | /* Noise cleaning. IMHO, it works pretty well | ||
| 230 | I've not detected cases when it doesn't work or cuts a part of the finger | ||
| 231 | Noise arises at the end of scan when some water remains on the scanner */ | ||
| 232 |
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1 | while (height > 0) |
| 233 | { | ||
| 234 |
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1 | if (!is_noise (vdev->lines_buffer + height - 1)) |
| 235 | break; | ||
| 236 | ✗ | --height; | |
| 237 | } | ||
| 238 |
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1 | if (height > VFS_MAX_HEIGHT) |
| 239 | height = VFS_MAX_HEIGHT; | ||
| 240 | |||
| 241 | /* If image is not good enough */ | ||
| 242 | ✗ | if (height < VFS_IMAGE_WIDTH) | |
| 243 | return NULL; | ||
| 244 | |||
| 245 | /* Building GSList */ | ||
| 246 | 1 | GSList *lines = NULL; | |
| 247 | |||
| 248 |
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3001 | for (int i = height - 1; i >= 0; --i) |
| 249 | 3000 | lines = g_slist_prepend (lines, vdev->lines_buffer + i); | |
| 250 | |||
| 251 | /* Perform line assembling */ | ||
| 252 | 1 | FpImage *img = fpi_assemble_lines (&assembling_ctx, lines, height); | |
| 253 | |||
| 254 | 1 | g_slist_free (lines); | |
| 255 | 1 | return img; | |
| 256 | } | ||
| 257 | |||
| 258 | /* Processes and submits image after fingerprint received */ | ||
| 259 | static void | ||
| 260 | 1 | submit_image (FpDeviceVfs0050 *self) | |
| 261 | { | ||
| 262 | 1 | FpImageDevice *idev = FP_IMAGE_DEVICE (self); | |
| 263 | |||
| 264 | /* We were not asked to submit image actually */ | ||
| 265 |
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1 | if (!self->active) |
| 266 | return; | ||
| 267 | |||
| 268 | 1 | FpImage *img = prepare_image (self); | |
| 269 | |||
| 270 |
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1 | if (!img) |
| 271 | ✗ | fpi_image_device_retry_scan (idev, FP_DEVICE_RETRY_TOO_SHORT); | |
| 272 | else | ||
| 273 | 1 | fpi_image_device_image_captured (idev, img); | |
| 274 | |||
| 275 | /* Finger not on the scanner */ | ||
| 276 | 1 | fpi_image_device_report_finger_status (idev, FALSE); | |
| 277 | } | ||
| 278 | |||
| 279 | /* Proto functions */ | ||
| 280 | |||
| 281 | /* SSM loop for clear_ep2 */ | ||
| 282 | static void | ||
| 283 | 18 | clear_ep2_ssm (FpiSsm *ssm, FpDevice *dev) | |
| 284 | { | ||
| 285 | 18 | char command04 = 0x04; | |
| 286 | |||
| 287 |
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18 | switch (fpi_ssm_get_cur_state (ssm)) |
| 288 | { | ||
| 289 | 6 | case SUBSM1_COMMAND_04: | |
| 290 | 6 | async_write (ssm, dev, &command04, sizeof (command04)); | |
| 291 | 6 | break; | |
| 292 | |||
| 293 | 6 | case SUBSM1_RETURN_CODE: | |
| 294 | 6 | async_read (ssm, dev, 1, NULL, 2); | |
| 295 | 6 | break; | |
| 296 | |||
| 297 | 6 | case SUBSM1_ABORT_2: | |
| 298 | 6 | async_abort (dev, ssm, 2); | |
| 299 | 6 | break; | |
| 300 | |||
| 301 | ✗ | default: | |
| 302 | ✗ | fp_err ("Unknown SUBSM1 state"); | |
| 303 | ✗ | fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO)); | |
| 304 | } | ||
| 305 | 18 | } | |
| 306 | |||
| 307 | /* Send command to clear EP2 */ | ||
| 308 | static void | ||
| 309 | 6 | clear_ep2 (FpDevice *dev, | |
| 310 | FpiSsm *ssm) | ||
| 311 | { | ||
| 312 | 6 | FpiSsm *subsm = fpi_ssm_new (dev, clear_ep2_ssm, SUBSM1_STATES); | |
| 313 | |||
| 314 | 6 | fpi_ssm_start_subsm (ssm, subsm); | |
| 315 | 6 | } | |
| 316 | |||
| 317 | static void | ||
| 318 | 28 | send_control_packet_ssm (FpiSsm *ssm, FpDevice *dev) | |
| 319 | { | ||
| 320 | 28 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (dev); | |
| 321 | |||
| 322 |
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28 | switch (fpi_ssm_get_cur_state (ssm)) |
| 323 | { | ||
| 324 | 4 | case SUBSM2_SEND_CONTROL: | |
| 325 | 4 | async_write (ssm, dev, self->control_packet, | |
| 326 | VFS_CONTROL_PACKET_SIZE); | ||
| 327 | 4 | break; | |
| 328 | |||
| 329 | 4 | case SUBSM2_RETURN_CODE: | |
| 330 | 4 | async_read (ssm, dev, 1, NULL, 2); | |
| 331 | 4 | break; | |
| 332 | |||
| 333 | 4 | case SUBSM2_SEND_COMMIT: | |
| 334 | /* next_receive_* packets could be sent only in pair */ | ||
| 335 |
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4 | if (self->control_packet == next_receive_1) |
| 336 | { | ||
| 337 | ✗ | self->control_packet = next_receive_2; | |
| 338 | ✗ | fpi_ssm_jump_to_state (ssm, SUBSM2_SEND_CONTROL); | |
| 339 | ✗ | break; | |
| 340 | } | ||
| 341 | /* commit_out in Windows differs in each commit, but I send the same each time */ | ||
| 342 | 4 | async_write (ssm, dev, commit_out, sizeof (commit_out)); | |
| 343 | 4 | break; | |
| 344 | |||
| 345 | 4 | case SUBSM2_COMMIT_RESPONSE: | |
| 346 | 4 | async_read (ssm, dev, 1, NULL, VFS_COMMIT_RESPONSE_SIZE); | |
| 347 | 4 | break; | |
| 348 | |||
| 349 | 4 | case SUBSM2_READ_EMPTY_INTERRUPT: | |
| 350 | /* I don't know how to check result, it could be different | ||
| 351 | * NOTE: I guess this comment relates to the above read. */ | ||
| 352 | 4 | async_read (ssm, dev, 3, self->interrupt, VFS_INTERRUPT_SIZE); | |
| 353 | 4 | break; | |
| 354 | |||
| 355 | 4 | case SUBSM2_ABORT_3: | |
| 356 | /* Check that interrupt is empty */ | ||
| 357 | 4 | if (memcmp | |
| 358 |
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4 | (self->interrupt, empty_interrupt, VFS_INTERRUPT_SIZE)) |
| 359 | { | ||
| 360 | ✗ | fp_err ("Unknown SUBSM2 state"); | |
| 361 | ✗ | fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO)); | |
| 362 | ✗ | break; | |
| 363 | } | ||
| 364 | 4 | async_abort (dev, ssm, 3); | |
| 365 | 4 | break; | |
| 366 | |||
| 367 | 4 | case SUBSM2_CLEAR_EP2: | |
| 368 | /* After turn_on Windows doesn't clear EP2 */ | ||
| 369 |
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4 | if (self->control_packet != turn_on) |
| 370 | 3 | clear_ep2 (dev, ssm); | |
| 371 | else | ||
| 372 | 1 | fpi_ssm_next_state (ssm); | |
| 373 | break; | ||
| 374 | |||
| 375 | ✗ | default: | |
| 376 | ✗ | fp_err ("Unknown SUBSM2 state"); | |
| 377 | ✗ | fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO)); | |
| 378 | } | ||
| 379 | 28 | } | |
| 380 | |||
| 381 | /* Send device state control packet */ | ||
| 382 | static void | ||
| 383 | 4 | send_control_packet (FpiSsm *ssm, | |
| 384 | FpDevice *dev) | ||
| 385 | { | ||
| 386 | 4 | FpiSsm *subsm = | |
| 387 | 4 | fpi_ssm_new (dev, send_control_packet_ssm, SUBSM2_STATES); | |
| 388 | |||
| 389 | 4 | fpi_ssm_start_subsm (ssm, subsm); | |
| 390 | 4 | } | |
| 391 | |||
| 392 | /* Clears all fprint data */ | ||
| 393 | static void | ||
| 394 | 3 | clear_data (FpDeviceVfs0050 *vdev) | |
| 395 | { | ||
| 396 | 3 | g_free (vdev->lines_buffer); | |
| 397 | 3 | vdev->lines_buffer = NULL; | |
| 398 | 3 | vdev->memory = vdev->bytes = 0; | |
| 399 | } | ||
| 400 | |||
| 401 | /* After receiving interrupt from EP3 */ | ||
| 402 | static void | ||
| 403 | 1 | interrupt_callback (FpiUsbTransfer *transfer, FpDevice *device, | |
| 404 | gpointer user_data, GError *error) | ||
| 405 | { | ||
| 406 | 1 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (device); | |
| 407 | 1 | unsigned char *interrupt = transfer->buffer; | |
| 408 | |||
| 409 | /* we expect a cancellation error when the device is deactivating | ||
| 410 | * go into the SSM_CLEAR_EP2 state in that case. */ | ||
| 411 |
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1 | if (!self->active && g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) |
| 412 | { | ||
| 413 | ✗ | g_error_free (error); | |
| 414 | ✗ | fpi_ssm_jump_to_state (transfer->ssm, SSM_CLEAR_EP2); | |
| 415 | ✗ | return; | |
| 416 | } | ||
| 417 | |||
| 418 |
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1 | if (error) |
| 419 | { | ||
| 420 | ✗ | fp_err ("USB read interrupt transfer: %s", | |
| 421 | error->message); | ||
| 422 | ✗ | fpi_ssm_mark_failed (transfer->ssm, error); | |
| 423 | ✗ | return; | |
| 424 | } | ||
| 425 | |||
| 426 | /* Standard interrupts */ | ||
| 427 |
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1 | if (memcmp (interrupt, interrupt1, VFS_INTERRUPT_SIZE) == 0 || |
| 428 |
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1 | memcmp (interrupt, interrupt2, VFS_INTERRUPT_SIZE) == 0 || |
| 429 | ✗ | memcmp (interrupt, interrupt3, VFS_INTERRUPT_SIZE) == 0) | |
| 430 | { | ||
| 431 | /* Go to the next ssm stage */ | ||
| 432 | 1 | fpi_ssm_next_state (transfer->ssm); | |
| 433 | 1 | return; | |
| 434 | } | ||
| 435 | |||
| 436 | /* When finger is on the scanner before turn_on */ | ||
| 437 | ✗ | if (interrupt[0] == 0x01) | |
| 438 | { | ||
| 439 | ✗ | fp_warn ("Finger is already on the scanner"); | |
| 440 | |||
| 441 | /* Go to the next ssm stage */ | ||
| 442 | ✗ | fpi_ssm_next_state (transfer->ssm); | |
| 443 | ✗ | return; | |
| 444 | } | ||
| 445 | |||
| 446 | /* Unknown interrupt; abort the session */ | ||
| 447 | ✗ | fp_err ("Unknown interrupt '%02x:%02x:%02x:%02x:%02x'!", | |
| 448 | interrupt[0] & 0xff, interrupt[1] & 0xff, interrupt[2] & 0xff, | ||
| 449 | interrupt[3] & 0xff, interrupt[4] & 0xff); | ||
| 450 | |||
| 451 | /* Abort ssm */ | ||
| 452 | ✗ | fpi_ssm_mark_failed (transfer->ssm, | |
| 453 | fpi_device_error_new (FP_DEVICE_ERROR_PROTO)); | ||
| 454 | } | ||
| 455 | |||
| 456 | static void | ||
| 457 | 25 | receive_callback (FpiUsbTransfer *transfer, FpDevice *device, | |
| 458 | gpointer user_data, GError *error) | ||
| 459 | { | ||
| 460 | 25 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (device); | |
| 461 | |||
| 462 |
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25 | if (error && !g_error_matches (error, G_USB_DEVICE_ERROR, G_USB_DEVICE_ERROR_TIMED_OUT)) |
| 463 | { | ||
| 464 | ✗ | fp_err ("USB read transfer: %s", error->message); | |
| 465 | |||
| 466 | ✗ | fpi_ssm_mark_failed (transfer->ssm, error); | |
| 467 | ✗ | return; | |
| 468 | } | ||
| 469 | ✗ | if (error) | |
| 470 | ✗ | g_error_free (error); | |
| 471 | |||
| 472 | /* Capture is done when there is no more data to transfer or device timed out */ | ||
| 473 |
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25 | if (transfer->actual_length <= 0) |
| 474 | { | ||
| 475 | 1 | fpi_ssm_next_state (transfer->ssm); | |
| 476 | } | ||
| 477 | else | ||
| 478 | { | ||
| 479 | 24 | self->bytes += transfer->actual_length; | |
| 480 | |||
| 481 | /* Try reading more data */ | ||
| 482 | 24 | fpi_ssm_jump_to_state (transfer->ssm, | |
| 483 | fpi_ssm_get_cur_state (transfer->ssm)); | ||
| 484 | } | ||
| 485 | } | ||
| 486 | |||
| 487 | /* Main SSM loop */ | ||
| 488 | static void | ||
| 489 | 44 | activate_ssm (FpiSsm *ssm, FpDevice *dev) | |
| 490 | { | ||
| 491 | 44 | FpImageDevice *idev = FP_IMAGE_DEVICE (dev); | |
| 492 | 44 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (dev); | |
| 493 | |||
| 494 |
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44 | switch (fpi_ssm_get_cur_state (ssm)) |
| 495 | { | ||
| 496 | 2 | case SSM_INITIAL_ABORT_1: | |
| 497 | 2 | async_abort (dev, ssm, 1); | |
| 498 | 2 | break; | |
| 499 | |||
| 500 | 2 | case SSM_INITIAL_ABORT_2: | |
| 501 | 2 | async_abort (dev, ssm, 2); | |
| 502 | 2 | break; | |
| 503 | |||
| 504 | 2 | case SSM_INITIAL_ABORT_3: | |
| 505 | 2 | async_abort (dev, ssm, 3); | |
| 506 | 2 | break; | |
| 507 | |||
| 508 | 3 | case SSM_CLEAR_EP2: | |
| 509 | 3 | clear_ep2 (dev, ssm); | |
| 510 | 3 | break; | |
| 511 | |||
| 512 | 3 | case SSM_TURN_OFF: | |
| 513 | /* Set control_packet argument */ | ||
| 514 | 3 | self->control_packet = turn_off; | |
| 515 | |||
| 516 | 3 | send_control_packet (ssm, dev); | |
| 517 | 3 | break; | |
| 518 | |||
| 519 | 3 | case SSM_TURN_ON: | |
| 520 |
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3 | if (!self->active) |
| 521 | { | ||
| 522 | /* The only correct exit */ | ||
| 523 | 2 | fpi_ssm_mark_completed (ssm); | |
| 524 | |||
| 525 |
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2 | if (self->need_report) |
| 526 | { | ||
| 527 | 1 | fpi_image_device_deactivate_complete (idev, | |
| 528 | NULL); | ||
| 529 | 1 | self->need_report = 0; | |
| 530 | } | ||
| 531 | break; | ||
| 532 | } | ||
| 533 | /* Set control_packet argument */ | ||
| 534 | 1 | self->control_packet = turn_on; | |
| 535 | |||
| 536 | 1 | send_control_packet (ssm, dev); | |
| 537 | 1 | break; | |
| 538 | |||
| 539 | 1 | case SSM_ASK_INTERRUPT: { | |
| 540 | 1 | FpiUsbTransfer *transfer; | |
| 541 | /* Activated, light must be blinking now */ | ||
| 542 | |||
| 543 | /* If we first time here, report that activate completed */ | ||
| 544 |
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1 | if (self->need_report) |
| 545 | { | ||
| 546 | 1 | fpi_image_device_activate_complete (idev, NULL); | |
| 547 | 1 | self->need_report = 0; | |
| 548 | } | ||
| 549 | |||
| 550 | /* Asynchronously enquire an interrupt */ | ||
| 551 | 1 | transfer = fpi_usb_transfer_new (dev); | |
| 552 | 1 | transfer->ssm = ssm; | |
| 553 | 1 | transfer->short_is_error = TRUE; | |
| 554 | 1 | fpi_usb_transfer_fill_interrupt (transfer, 0x83, VFS_INTERRUPT_SIZE); | |
| 555 | 1 | fpi_usb_transfer_submit (transfer, | |
| 556 | 0, | ||
| 557 | fpi_device_get_cancellable (dev), | ||
| 558 | interrupt_callback, NULL); | ||
| 559 | |||
| 560 | /* I've put it here to be sure that data is cleared */ | ||
| 561 | 1 | clear_data (self); | |
| 562 | |||
| 563 | 1 | fpi_ssm_next_state (ssm); | |
| 564 | 1 | break; | |
| 565 | } | ||
| 566 | |||
| 567 | case SSM_WAIT_INTERRUPT: | ||
| 568 | /* TODO: This state is unused at this point. When we | ||
| 569 | * are in this state, then a user cancellation will | ||
| 570 | * cause deactivation. In that case, the USB transfer | ||
| 571 | * is cancelled and the device is set to not be active. | ||
| 572 | * We then go into SSM_CLEAR_EP2 based on the | ||
| 573 | * cancellation. */ | ||
| 574 | break; | ||
| 575 | |||
| 576 | 25 | case SSM_RECEIVE_FINGER: { | |
| 577 | 25 | FpiUsbTransfer *transfer; | |
| 578 | |||
| 579 |
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25 | if (self->memory == 0) |
| 580 | { | ||
| 581 | /* Initialize fingerprint buffer */ | ||
| 582 | 1 | g_free (self->lines_buffer); | |
| 583 | 1 | self->memory = VFS_USB_BUFFER_SIZE; | |
| 584 | 1 | self->lines_buffer = g_malloc0 (self->memory); | |
| 585 | 1 | self->bytes = 0; | |
| 586 | |||
| 587 | /* Finger is on the scanner */ | ||
| 588 | 1 | fpi_image_device_report_finger_status (idev, TRUE); | |
| 589 | } | ||
| 590 | |||
| 591 | /* Increase buffer size while it's insufficient */ | ||
| 592 |
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48 | while (self->memory < self->bytes + VFS_USB_BUFFER_SIZE) |
| 593 | { | ||
| 594 | 23 | int pre_memory = self->memory; | |
| 595 | 23 | self->memory += VFS_USB_BUFFER_SIZE; | |
| 596 | 46 | self->lines_buffer = | |
| 597 | 23 | (struct vfs_line *) g_realloc (self->lines_buffer, | |
| 598 | self->memory); | ||
| 599 | 23 | memset ((guint8 *) self->lines_buffer + pre_memory, 0, | |
| 600 | VFS_USB_BUFFER_SIZE); | ||
| 601 | } | ||
| 602 | |||
| 603 | /* Receive chunk of data */ | ||
| 604 | 25 | transfer = fpi_usb_transfer_new (dev); | |
| 605 | 25 | fpi_usb_transfer_fill_bulk_full (transfer, 0x82, | |
| 606 | 25 | (guint8 *) self->lines_buffer + self->bytes, | |
| 607 | VFS_USB_BUFFER_SIZE, NULL); | ||
| 608 | 25 | transfer->ssm = ssm; | |
| 609 | 25 | fpi_usb_transfer_submit (transfer, VFS_USB_TIMEOUT, NULL, | |
| 610 | receive_callback, NULL); | ||
| 611 | 25 | break; | |
| 612 | } | ||
| 613 | |||
| 614 | 1 | case SSM_SUBMIT_IMAGE: | |
| 615 | 1 | submit_image (self); | |
| 616 | 1 | clear_data (self); | |
| 617 | |||
| 618 | /* Wait for probable vdev->active changing */ | ||
| 619 | 1 | fpi_ssm_next_state_delayed (ssm, VFS_SSM_TIMEOUT); | |
| 620 | 1 | break; | |
| 621 | |||
| 622 | 1 | case SSM_NEXT_RECEIVE: | |
| 623 |
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1 | if (!self->active) |
| 624 | { | ||
| 625 | /* It's the last scan */ | ||
| 626 | 1 | fpi_ssm_jump_to_state (ssm, SSM_CLEAR_EP2); | |
| 627 | 1 | break; | |
| 628 | } | ||
| 629 | |||
| 630 | /* Set control_packet argument */ | ||
| 631 | ✗ | self->control_packet = next_receive_1; | |
| 632 | |||
| 633 | ✗ | send_control_packet (ssm, dev); | |
| 634 | ✗ | break; | |
| 635 | |||
| 636 | ✗ | case SSM_WAIT_ANOTHER_SCAN: | |
| 637 | /* Orange light is on now */ | ||
| 638 | ✗ | fpi_ssm_jump_to_state_delayed (ssm, SSM_TURN_ON, VFS_SSM_ORANGE_TIMEOUT); | |
| 639 | ✗ | break; | |
| 640 | |||
| 641 | ✗ | default: | |
| 642 | ✗ | fp_err ("Unknown state"); | |
| 643 | ✗ | fpi_ssm_mark_failed (ssm, fpi_device_error_new (FP_DEVICE_ERROR_PROTO)); | |
| 644 | } | ||
| 645 | 44 | } | |
| 646 | |||
| 647 | /* Driver functions */ | ||
| 648 | |||
| 649 | /* Callback for dev_activate ssm */ | ||
| 650 | static void | ||
| 651 | 1 | dev_activate_callback (FpiSsm *ssm, FpDevice *dev, GError *error) | |
| 652 | { | ||
| 653 | 1 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (dev); | |
| 654 | |||
| 655 | 1 | self->ssm_active = 0; | |
| 656 | |||
| 657 |
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1 | if (error) |
| 658 | { | ||
| 659 | ✗ | g_warning ("Unhandled device activation error: %s", error->message); | |
| 660 | ✗ | g_error_free (error); | |
| 661 | } | ||
| 662 | |||
| 663 | 1 | } | |
| 664 | |||
| 665 | /* Activate device */ | ||
| 666 | static void | ||
| 667 | 1 | dev_activate (FpImageDevice *idev) | |
| 668 | { | ||
| 669 | 1 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (idev); | |
| 670 | |||
| 671 | /* Initialize flags */ | ||
| 672 | 1 | self->active = 1; | |
| 673 | 1 | self->need_report = 1; | |
| 674 | 1 | self->ssm_active = 1; | |
| 675 | |||
| 676 | 1 | FpiSsm *ssm = fpi_ssm_new (FP_DEVICE (idev), activate_ssm, SSM_STATES); | |
| 677 | |||
| 678 | 1 | fpi_ssm_start (ssm, dev_activate_callback); | |
| 679 | 1 | } | |
| 680 | |||
| 681 | /* Deactivate device */ | ||
| 682 | static void | ||
| 683 | 1 | dev_deactivate (FpImageDevice *idev) | |
| 684 | { | ||
| 685 | 1 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (idev); | |
| 686 | |||
| 687 |
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1 | if (!self->ssm_active) |
| 688 | { | ||
| 689 | ✗ | fpi_image_device_deactivate_complete (idev, NULL); | |
| 690 | ✗ | return; | |
| 691 | } | ||
| 692 | |||
| 693 | /* Initialize flags */ | ||
| 694 | 1 | self->active = 0; | |
| 695 | 1 | self->need_report = 1; | |
| 696 | } | ||
| 697 | |||
| 698 | /* Callback for dev_open ssm */ | ||
| 699 | static void | ||
| 700 | 1 | dev_open_callback (FpiSsm *ssm, FpDevice *dev, GError *error) | |
| 701 | { | ||
| 702 | /* Notify open complete */ | ||
| 703 | 1 | fpi_image_device_open_complete (FP_IMAGE_DEVICE (dev), error); | |
| 704 | 1 | } | |
| 705 | |||
| 706 | /* Open device */ | ||
| 707 | static void | ||
| 708 | 1 | dev_open (FpImageDevice *idev) | |
| 709 | { | ||
| 710 | 1 | GError *error = NULL; | |
| 711 | |||
| 712 | /* Claim usb interface */ | ||
| 713 |
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1 | if (!g_usb_device_claim_interface (fpi_device_get_usb_device (FP_DEVICE (idev)), 0, 0, &error)) |
| 714 | { | ||
| 715 | ✗ | fpi_image_device_open_complete (idev, error); | |
| 716 | ✗ | return; | |
| 717 | } | ||
| 718 | |||
| 719 | /* Clearing previous device state */ | ||
| 720 | 1 | FpiSsm *ssm = fpi_ssm_new (FP_DEVICE (idev), activate_ssm, SSM_STATES); | |
| 721 | |||
| 722 | 1 | fpi_ssm_start (ssm, dev_open_callback); | |
| 723 | } | ||
| 724 | |||
| 725 | /* Close device */ | ||
| 726 | static void | ||
| 727 | 1 | dev_close (FpImageDevice *idev) | |
| 728 | { | ||
| 729 | 1 | GError *error = NULL; | |
| 730 | 1 | FpDeviceVfs0050 *self = FPI_DEVICE_VFS0050 (idev); | |
| 731 | |||
| 732 | 1 | clear_data (self); | |
| 733 | |||
| 734 | /* Release usb interface */ | ||
| 735 | 1 | g_usb_device_release_interface (fpi_device_get_usb_device (FP_DEVICE (idev)), | |
| 736 | 0, 0, &error); | ||
| 737 | |||
| 738 | /* Notify close complete */ | ||
| 739 | 1 | fpi_image_device_close_complete (idev, error); | |
| 740 | 1 | } | |
| 741 | |||
| 742 | /* Usb id table of device */ | ||
| 743 | static const FpIdEntry id_table[] = { | ||
| 744 | {.vid = 0x138a, .pid = 0x0050, }, | ||
| 745 | {.vid = 0, .pid = 0, .driver_data = 0}, | ||
| 746 | }; | ||
| 747 | |||
| 748 | static void | ||
| 749 | 1 | fpi_device_vfs0050_init (FpDeviceVfs0050 *self) | |
| 750 | { | ||
| 751 | 1 | } | |
| 752 | static void | ||
| 753 | 117 | fpi_device_vfs0050_class_init (FpDeviceVfs0050Class *klass) | |
| 754 | { | ||
| 755 | 117 | FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass); | |
| 756 | 117 | FpImageDeviceClass *img_class = FP_IMAGE_DEVICE_CLASS (klass); | |
| 757 | |||
| 758 | 117 | dev_class->id = "vfs0050"; | |
| 759 | 117 | dev_class->full_name = "Validity VFS0050"; | |
| 760 | 117 | dev_class->type = FP_DEVICE_TYPE_USB; | |
| 761 | 117 | dev_class->id_table = id_table; | |
| 762 | 117 | dev_class->scan_type = FP_SCAN_TYPE_SWIPE; | |
| 763 | |||
| 764 | 117 | img_class->img_open = dev_open; | |
| 765 | 117 | img_class->img_close = dev_close; | |
| 766 | 117 | img_class->activate = dev_activate; | |
| 767 | 117 | img_class->deactivate = dev_deactivate; | |
| 768 | |||
| 769 | 117 | img_class->bz3_threshold = 24; | |
| 770 | |||
| 771 | 117 | img_class->img_width = VFS_IMAGE_WIDTH; | |
| 772 | 117 | img_class->img_height = -1; | |
| 773 | } | ||
| 774 |