Changes in uspace/lib/usbdev/src/devdrv.c [4291215:0c0f823b] in mainline
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uspace/lib/usbdev/src/devdrv.c (modified) (27 diffs)
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uspace/lib/usbdev/src/devdrv.c
r4291215 r0c0f823b 1 1 /* 2 2 * Copyright (c) 2011 Vojtech Horky 3 * Copyright (c) 2011 Jan Vesely4 3 * All rights reserved. 5 4 * … … 27 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 27 */ 28 29 29 /** @addtogroup libusbdev 30 30 * @{ … … 36 36 #include <usb/dev/request.h> 37 37 #include <usb/debug.h> 38 #include <usb/dev .h>38 #include <usb/dev/dp.h> 39 39 #include <errno.h> 40 40 #include <str_error.h> … … 56 56 static const usb_driver_t *driver = NULL; 57 57 58 58 59 /** Main routine of USB device driver. 59 60 * … … 74 75 return ddf_driver_main(&generic_driver); 75 76 } 76 /*----------------------------------------------------------------------------*/ 77 77 78 /** Count number of pipes the driver expects. 78 79 * … … 84 85 { 85 86 size_t count; 86 for (count = 0; endpoints != NULL&& endpoints[count] != NULL; ++count);87 for (count = 0; endpoints && endpoints[count] != NULL; ++count); 87 88 return count; 89 } 90 91 /** Initialize endpoint pipes, excluding default control one. 92 * 93 * @param drv The device driver. 94 * @param dev Device to be initialized. 95 * @return Error code. 96 */ 97 static int initialize_other_pipes(const usb_endpoint_description_t **endpoints, 98 usb_device_t *dev, int alternate_setting) 99 { 100 assert(dev); 101 102 if (endpoints == NULL) { 103 dev->pipes = NULL; 104 dev->pipes_count = 0; 105 return EOK; 106 } 107 108 usb_endpoint_mapping_t *pipes; 109 size_t pipes_count; 110 111 int rc = usb_device_create_pipes(dev->ddf_dev, &dev->wire, endpoints, 112 dev->descriptors.configuration, dev->descriptors.configuration_size, 113 dev->interface_no, alternate_setting, &pipes, &pipes_count); 114 115 if (rc != EOK) { 116 return rc; 117 } 118 119 dev->pipes = pipes; 120 dev->pipes_count = pipes_count; 121 122 return EOK; 88 123 } 89 124 /*----------------------------------------------------------------------------*/ … … 101 136 assert(driver->ops->device_add); 102 137 103 /* Get place for driver data. */104 138 usb_device_t *dev = ddf_dev_data_alloc(gen_dev, sizeof(usb_device_t)); 105 139 if (dev == NULL) { … … 108 142 return ENOMEM; 109 143 } 110 111 /* Initialize generic USB driver data. */112 144 const char *err_msg = NULL; 113 145 int rc = usb_device_init(dev, gen_dev, driver->endpoints, &err_msg); … … 118 150 } 119 151 120 /* Start USB driver specific initialization. */121 152 rc = driver->ops->device_add(dev); 122 153 if (rc != EOK) … … 138 169 if (driver->ops->device_rem == NULL) 139 170 return ENOTSUP; 140 /* Just tell the driver to stop whatever it is doing */ 141 usb_device_t *usb_dev = gen_dev->driver_data; 142 const int ret = driver->ops->device_rem(usb_dev); 143 if (ret != EOK) 144 return ret; 145 usb_device_deinit(usb_dev); 146 return EOK; 171 /* Just tell the driver to stop whatever it is doing, keep structures */ 172 return driver->ops->device_rem(gen_dev->driver_data); 147 173 } 148 174 /*----------------------------------------------------------------------------*/ … … 171 197 * 172 198 * @param dev Device where to destroy the pipes. 173 */ 174 static void destroy_current_pipes(usb_device_t *dev) 175 { 176 usb_device_destroy_pipes(dev->pipes, dev->pipes_count); 199 * @return Error code. 200 */ 201 static int destroy_current_pipes(usb_device_t *dev) 202 { 203 int rc = usb_device_destroy_pipes(dev->ddf_dev, 204 dev->pipes, dev->pipes_count); 205 if (rc != EOK) { 206 return rc; 207 } 208 177 209 dev->pipes = NULL; 178 210 dev->pipes_count = 0; 179 } 180 /*----------------------------------------------------------------------------*/ 211 212 return EOK; 213 } 214 181 215 /** Change interface setting of a device. 182 216 * This function selects new alternate setting of an interface by issuing … … 208 242 } 209 243 244 int rc; 245 210 246 /* Destroy existing pipes. */ 211 destroy_current_pipes(dev); 247 rc = destroy_current_pipes(dev); 248 if (rc != EOK) { 249 return rc; 250 } 212 251 213 252 /* Change the interface itself. */ 214 intrc = usb_request_set_interface(&dev->ctrl_pipe, dev->interface_no,253 rc = usb_request_set_interface(&dev->ctrl_pipe, dev->interface_no, 215 254 alternate_setting); 216 255 if (rc != EOK) { … … 219 258 220 259 /* Create new pipes. */ 221 rc = usb_device_create_pipes(&dev->wire, endpoints, 222 dev->descriptors.configuration, dev->descriptors.configuration_size, 223 dev->interface_no, (int)alternate_setting, 224 &dev->pipes, &dev->pipes_count); 260 rc = initialize_other_pipes(endpoints, dev, (int) alternate_setting); 225 261 226 262 return rc; … … 280 316 * - registers endpoints with the host controller 281 317 * 318 * @param[in] dev Generic DDF device backing the USB one. 282 319 * @param[in] wire Initialized backing connection to the host controller. 283 320 * @param[in] endpoints Endpoints description, NULL terminated. … … 292 329 * @return Error code. 293 330 */ 294 int usb_device_create_pipes( usb_device_connection_t *wire,331 int usb_device_create_pipes(const ddf_dev_t *dev, usb_device_connection_t *wire, 295 332 const usb_endpoint_description_t **endpoints, 296 333 const uint8_t *config_descr, size_t config_descr_size, … … 298 335 usb_endpoint_mapping_t **pipes_ptr, size_t *pipes_count_ptr) 299 336 { 337 assert(dev != NULL); 300 338 assert(wire != NULL); 339 assert(endpoints != NULL); 301 340 assert(config_descr != NULL); 302 341 assert(config_descr_size > 0); … … 320 359 } 321 360 322 /* Now initialize. */361 /* Now allocate and fully initialize. */ 323 362 for (i = 0; i < pipe_count; i++) { 324 363 pipes[i].description = endpoints[i]; … … 331 370 config_descr, config_descr_size, wire); 332 371 if (rc != EOK) { 333 free(pipes); 334 return rc; 335 } 336 337 /* Register created pipes. */ 372 goto rollback_free_only; 373 } 374 375 /* Register the endpoints with HC. */ 376 usb_hc_connection_t hc_conn; 377 rc = usb_hc_connection_initialize_from_device(&hc_conn, dev); 378 if (rc != EOK) { 379 goto rollback_free_only; 380 } 381 382 rc = usb_hc_connection_open(&hc_conn); 383 if (rc != EOK) { 384 goto rollback_free_only; 385 } 386 338 387 for (i = 0; i < pipe_count; i++) { 339 388 if (pipes[i].present) { 340 389 rc = usb_pipe_register(&pipes[i].pipe, 341 pipes[i].descriptor->poll_interval );390 pipes[i].descriptor->poll_interval, &hc_conn); 342 391 if (rc != EOK) { 343 392 goto rollback_unregister_endpoints; … … 345 394 } 346 395 } 396 397 if (usb_hc_connection_close(&hc_conn) != EOK) 398 usb_log_warning("%s: Failed to close connection.\n", 399 __FUNCTION__); 347 400 348 401 *pipes_ptr = pipes; … … 362 415 for (i = 0; i < pipe_count; i++) { 363 416 if (pipes[i].present) { 364 usb_pipe_unregister(&pipes[i].pipe );417 usb_pipe_unregister(&pipes[i].pipe, &hc_conn); 365 418 } 366 419 } 367 420 421 if (usb_hc_connection_close(&hc_conn) != EOK) 422 usb_log_warning("usb_device_create_pipes(): " 423 "Failed to close connection.\n"); 424 425 /* 426 * Jump here if something went wrong before some actual communication 427 * with HC. Then the only thing that needs to be done is to free 428 * allocated memory. 429 */ 430 rollback_free_only: 368 431 free(pipes); 432 369 433 return rc; 370 434 } … … 372 436 /** Destroy pipes previously created by usb_device_create_pipes. 373 437 * 438 * @param[in] dev Generic DDF device backing the USB one. 374 439 * @param[in] pipes Endpoint mapping to be destroyed. 375 440 * @param[in] pipes_count Number of endpoints. 376 441 */ 377 void usb_device_destroy_pipes(usb_endpoint_mapping_t *pipes, size_t pipes_count) 378 { 442 int usb_device_destroy_pipes(const ddf_dev_t *dev, 443 usb_endpoint_mapping_t *pipes, size_t pipes_count) 444 { 445 assert(dev != NULL); 446 447 if (pipes_count == 0) { 448 assert(pipes == NULL); 449 return EOK; 450 } 451 assert(pipes != NULL); 452 453 int rc; 454 455 /* Prepare connection to HC to allow endpoint unregistering. */ 456 usb_hc_connection_t hc_conn; 457 rc = usb_hc_connection_initialize_from_device(&hc_conn, dev); 458 if (rc != EOK) { 459 return rc; 460 } 461 rc = usb_hc_connection_open(&hc_conn); 462 if (rc != EOK) { 463 return rc; 464 } 465 379 466 /* Destroy the pipes. */ 380 for (size_t i = 0; i < pipes_count; ++i) {381 assert(pipes);382 usb_log_debug2("Unregistering pipe %zu : %spresent.\n",467 size_t i; 468 for (i = 0; i < pipes_count; i++) { 469 usb_log_debug2("Unregistering pipe %zu (%spresent).\n", 383 470 i, pipes[i].present ? "" : "not "); 384 471 if (pipes[i].present) 385 usb_pipe_unregister(&pipes[i].pipe); 386 } 472 usb_pipe_unregister(&pipes[i].pipe, &hc_conn); 473 } 474 475 if (usb_hc_connection_close(&hc_conn) != EOK) 476 usb_log_warning("usb_device_destroy_pipes(): " 477 "Failed to close connection.\n"); 478 387 479 free(pipes); 480 481 return EOK; 388 482 } 389 483 … … 411 505 usb_dev->pipes = NULL; 412 506 413 /* Get assigned params */414 devman_handle_t hc_handle;415 usb_address_t address;416 417 int rc = usb_get_info_by_handle(ddf_dev->handle,418 &hc_handle, &address, &usb_dev->interface_no);419 if (rc != EOK) {420 *errstr_ptr = "device parameters retrieval";421 return rc;422 }423 424 /* Initialize hc connection. */425 usb_hc_connection_initialize(&usb_dev->hc_conn, hc_handle);426 427 507 /* Initialize backing wire and control pipe. */ 428 rc = usb_device_connection_initialize(429 &usb_dev->wire, &usb_dev->hc_conn, address);508 int rc = usb_device_connection_initialize_from_device( 509 &usb_dev->wire, ddf_dev); 430 510 if (rc != EOK) { 431 511 *errstr_ptr = "device connection initialization"; … … 435 515 /* This pipe was registered by the hub driver, 436 516 * during device initialization. */ 437 rc = usb_pipe_initialize_default_control( 438 &usb_dev-> ctrl_pipe, &usb_dev->wire);517 rc = usb_pipe_initialize_default_control(&usb_dev->ctrl_pipe, 518 &usb_dev->wire); 439 519 if (rc != EOK) { 440 520 *errstr_ptr = "default control pipe initialization"; … … 442 522 } 443 523 444 /* Open hc connection for pipe registration. */ 445 rc = usb_hc_connection_open(&usb_dev->hc_conn); 446 if (rc != EOK) { 447 *errstr_ptr = "hc connection open"; 448 return rc; 449 } 524 /* Get our interface. */ 525 usb_dev->interface_no = usb_device_get_assigned_interface(ddf_dev); 450 526 451 527 /* Retrieve standard descriptors. */ 452 rc = usb_device_retrieve_descriptors( 453 &usb_dev-> ctrl_pipe, &usb_dev->descriptors);528 rc = usb_device_retrieve_descriptors(&usb_dev->ctrl_pipe, 529 &usb_dev->descriptors); 454 530 if (rc != EOK) { 455 531 *errstr_ptr = "descriptor retrieval"; 456 usb_hc_connection_close(&usb_dev->hc_conn);457 532 return rc; 458 533 } … … 468 543 (rc == EOK) ? usb_dev->alternate_interfaces.current : 0; 469 544 470 /* Create and register other pipes than default control (EP 0) */ 471 rc = usb_device_create_pipes(&usb_dev->wire, endpoints, 472 usb_dev->descriptors.configuration, 473 usb_dev->descriptors.configuration_size, 474 usb_dev->interface_no, (int)alternate_iface, 475 &usb_dev->pipes, &usb_dev->pipes_count); 476 if (rc != EOK) { 477 usb_hc_connection_close(&usb_dev->hc_conn); 545 /* TODO Add comment here. */ 546 rc = initialize_other_pipes(endpoints, usb_dev, alternate_iface); 547 if (rc != EOK) { 478 548 /* Full configuration descriptor is allocated. */ 479 549 usb_device_release_descriptors(&usb_dev->descriptors); … … 484 554 } 485 555 486 usb_hc_connection_close(&usb_dev->hc_conn);487 556 return EOK; 488 557 } … … 497 566 { 498 567 if (dev) { 499 /* Destroy existing pipes. */568 /* Ignore errors and hope for the best. */ 500 569 destroy_current_pipes(dev); 501 /* Ignore errors and hope for the best. */ 502 usb_hc_connection_deinitialize(&dev->hc_conn); 570 503 571 usb_alternate_interfaces_deinit(&dev->alternate_interfaces); 504 572 usb_device_release_descriptors(&dev->descriptors); 505 573 free(dev->driver_data); 506 dev->driver_data = NULL; 507 } 508 } 509 510 /** Allocate driver specific data. 511 * @param usb_dev usb_device structure. 512 * @param size requested data size. 513 * @return Pointer to the newly allocated space, NULL on failure. 514 */ 574 } 575 } 576 515 577 void * usb_device_data_alloc(usb_device_t *usb_dev, size_t size) 516 578 {
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