/* * Copyright (c) 2010 Matus Dekanek * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup drvusbhub * @{ */ /** @file * @brief usb hub main functionality */ #include #include #include #include #include #include #include #include #include #include #include #include "usbhub.h" #include "usbhub_private.h" #include "port_status.h" #include "usb/usb.h" #include "usb/pipes.h" #include "usb/classes/classes.h" static int usb_hub_init_add_device(usb_hub_info_t * hub, uint16_t port, usb_speed_t speed); static int usb_hub_trigger_connecting_non_removable_devices( usb_hub_info_t * hub, usb_hub_descriptor_t * descriptor); /** * control loop running in hub`s fibril * * Hub`s fibril periodically asks for changes on hub and if needded calls * change handling routine. * @warning currently hub driver asks for changes once a second * @param hub_info_param hub representation pointer * @return zero */ int usb_hub_control_loop(void * hub_info_param) { usb_hub_info_t * hub_info = (usb_hub_info_t*) hub_info_param; int errorCode = EOK; while (errorCode == EOK) { async_usleep(1000 * 1000 * 10); /// \TODO proper number once errorCode = usb_hub_check_hub_changes(hub_info); } usb_log_error("something in ctrl loop went wrong, errno %d\n", errorCode); return 0; } /// \TODO set_port_feature use /// \TODO unmess code //********************************************* // // hub driver code, initialization // //********************************************* /** * create usb_hub_info_t structure * * Does only basic copying of known information into new structure. * @param usb_dev usb device structure * @return basic usb_hub_info_t structure */ static usb_hub_info_t * usb_hub_info_create(usb_device_t * usb_dev) { usb_hub_info_t * result = usb_new(usb_hub_info_t); if (!result) return NULL; result->usb_device = usb_dev; result->status_change_pipe = usb_dev->pipes[0].pipe; result->control_pipe = &usb_dev->ctrl_pipe; result->is_default_address_used = false; return result; } /** * Load hub-specific information into hub_info structure and process if needed * * Particularly read port count and initialize structure holding port * information. If there are non-removable devices, start initializing them. * This function is hub-specific and should be run only after the hub is * configured using usb_hub_set_configuration function. * @param hub_info hub representation * @return error code */ static int usb_hub_process_hub_specific_info(usb_hub_info_t * hub_info) { // get hub descriptor usb_log_debug("creating serialized descriptor\n"); void * serialized_descriptor = malloc(USB_HUB_MAX_DESCRIPTOR_SIZE); usb_hub_descriptor_t * descriptor; int opResult; /* this was one fix of some bug, should not be needed anymore * these lines allow to reset hub once more, it can be used as * brute-force initialization for non-removable devices * opResult = usb_request_set_configuration(hub_info->control_pipe, 1); if (opResult != EOK) { usb_log_error("could not set default configuration, errno %d", opResult); return opResult; }*/ size_t received_size; opResult = usb_request_get_descriptor(&hub_info->usb_device->ctrl_pipe, USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_DEVICE, USB_DESCTYPE_HUB, 0, 0, serialized_descriptor, USB_HUB_MAX_DESCRIPTOR_SIZE, &received_size); if (opResult != EOK) { usb_log_error("failed when receiving hub descriptor, " "badcode = %d\n", opResult); free(serialized_descriptor); return opResult; } usb_log_debug2("deserializing descriptor\n"); descriptor = usb_deserialize_hub_desriptor(serialized_descriptor); if (descriptor == NULL) { usb_log_warning("could not deserialize descriptor \n"); return opResult; } usb_log_debug("setting port count to %d\n", descriptor->ports_count); hub_info->port_count = descriptor->ports_count; hub_info->attached_devs = (usb_hc_attached_device_t*) malloc((hub_info->port_count + 1) * sizeof (usb_hc_attached_device_t) ); int i; for (i = 0; i < hub_info->port_count + 1; ++i) { hub_info->attached_devs[i].handle = 0; hub_info->attached_devs[i].address = 0; } //handle non-removable devices usb_hub_trigger_connecting_non_removable_devices(hub_info, descriptor); usb_log_debug2("freeing data\n"); free(serialized_descriptor); hub_info->descriptor = descriptor; hub_info->not_initialized_non_removables = (uint8_t*) malloc((hub_info->port_count + 8) / 8); memcpy(hub_info->not_initialized_non_removables, descriptor->devices_removable, (hub_info->port_count + 8) / 8 ); //free(descriptor->devices_removable); //free(descriptor); return EOK; } /** * Set configuration of hub * * Check whether there is at least one configuration and sets the first one. * This function should be run prior to running any hub-specific action. * @param hub_info hub representation * @return error code */ static int usb_hub_set_configuration(usb_hub_info_t * hub_info) { //device descriptor usb_standard_device_descriptor_t *std_descriptor = &hub_info->usb_device->descriptors.device; usb_log_debug("hub has %d configurations\n", std_descriptor->configuration_count); if (std_descriptor->configuration_count < 1) { usb_log_error("there are no configurations available\n"); return EINVAL; } usb_standard_configuration_descriptor_t *config_descriptor = (usb_standard_configuration_descriptor_t *) hub_info->usb_device->descriptors.configuration; /* Set configuration. */ int opResult = usb_request_set_configuration( &hub_info->usb_device->ctrl_pipe, config_descriptor->configuration_number); if (opResult != EOK) { usb_log_error("Failed to set hub configuration: %s.\n", str_error(opResult)); return opResult; } usb_log_debug("\tused configuration %d\n", config_descriptor->configuration_number); return EOK; } /** * Initialize hub device driver fibril * * Creates hub representation and fibril that periodically checks hub`s status. * Hub representation is passed to the fibril. * @param usb_dev generic usb device information * @return error code */ int usb_hub_add_device(usb_device_t * usb_dev) { if (!usb_dev) return EINVAL; usb_hub_info_t * hub_info = usb_hub_info_create(usb_dev); //create hc connection usb_log_debug("Initializing USB wire abstraction.\n"); int opResult = usb_hc_connection_initialize_from_device( &hub_info->connection, hub_info->usb_device->ddf_dev); if (opResult != EOK) { usb_log_error("could not initialize connection to device, " "errno %d\n", opResult); free(hub_info); return opResult; } usb_pipe_start_session(hub_info->control_pipe); //set hub configuration opResult = usb_hub_set_configuration(hub_info); if (opResult != EOK) { usb_log_error("could not set hub configuration, errno %d\n", opResult); free(hub_info); return opResult; } //get port count and create attached_devs opResult = usb_hub_process_hub_specific_info(hub_info); if (opResult != EOK) { usb_log_error("could not set hub configuration, errno %d\n", opResult); free(hub_info); return opResult; } usb_pipe_end_session(hub_info->control_pipe); /// \TODO what is this? usb_log_debug("Creating `hub' function.\n"); ddf_fun_t *hub_fun = ddf_fun_create(hub_info->usb_device->ddf_dev, fun_exposed, "hub"); assert(hub_fun != NULL); hub_fun->ops = NULL; int rc = ddf_fun_bind(hub_fun); assert(rc == EOK); rc = ddf_fun_add_to_class(hub_fun, "hub"); assert(rc == EOK); //create fibril for the hub control loop fid_t fid = fibril_create(usb_hub_control_loop, hub_info); if (fid == 0) { usb_log_error("failed to start monitoring fibril for new" " hub.\n"); return ENOMEM; } fibril_add_ready(fid); usb_log_debug("Hub fibril created.\n"); usb_log_info("Controlling hub `%s' (%d ports).\n", hub_info->usb_device->ddf_dev->name, hub_info->port_count); return EOK; } //********************************************* // // hub driver code, main loop and port handling // //********************************************* /** * triggers actions to connect non0removable devices * * This will trigger operations leading to activated non-removable device. * Control pipe of the hub must be open fo communication. * @param hub hub representation * @param descriptor usb hub descriptor * @return error code */ static int usb_hub_trigger_connecting_non_removable_devices( usb_hub_info_t * hub, usb_hub_descriptor_t * descriptor) { usb_log_info("attaching non-removable devices(if any)\n"); //usb_device_request_setup_packet_t request; int opResult; //size_t rcvd_size; //usb_port_status_t status; uint8_t * non_removable_dev_bitmap = descriptor->devices_removable; int port; opResult = usb_request_set_configuration(hub->control_pipe, 1); if (opResult != EOK) { usb_log_error("could not set default configuration, errno %d", opResult); return opResult; } #if 0 for (port = 1; port <= descriptor->ports_count; ++port) { bool is_non_removable = ((non_removable_dev_bitmap[port / 8]) >> (port % 8)) % 2; if (is_non_removable) { usb_log_debug("non-removable device on port %d\n", port); usb_hub_set_port_status_request(&request, port); opResult = usb_pipe_control_read( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_error("could not get port status of " "port %d errno:%d\n", port, opResult); return opResult; } //try to reset port if (usb_port_dev_connected(&status) || true) { usb_hub_set_enable_port_feature_request( &request, port, USB_HUB_FEATURE_PORT_RESET); opResult = usb_pipe_control_read( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_warning( "could not reset port %d " "errno:%d\n", port, opResult); } usb_log_debug("port reset, should look like " "%d,x%x\n", (1 << USB_HUB_FEATURE_PORT_RESET), (1 << USB_HUB_FEATURE_PORT_RESET) ); } //set the status change bit, so it will be noticed //in driver loop if (usb_port_dev_connected(&status) && false) { usb_hub_set_disable_port_feature_request( &request, port, USB_HUB_FEATURE_PORT_CONNECTION); opResult = usb_pipe_control_read( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_warning( "could not clear port " "connection on port %d " "errno:%d\n", port, opResult); } usb_log_debug("cleared port connection\n"); usb_hub_set_enable_port_feature_request(&request, port, USB_HUB_FEATURE_PORT_ENABLE); opResult = usb_pipe_control_read( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_warning( "could not set port enabled " "on port %d errno:%d\n", port, opResult); } usb_log_debug("port set to enabled - " "should lead to connection change\n"); } } } #endif /// \TODO this is just a debug code for (port = 1; port <= descriptor->ports_count; ++port) { bool is_non_removable = ((non_removable_dev_bitmap[port / 8]) >> (port % 8)) % 2; if (is_non_removable) { usb_log_debug("CHECKING port %d is non-removable\n", port); usb_port_status_t status; size_t rcvd_size; usb_device_request_setup_packet_t request; //int opResult; usb_hub_set_port_status_request(&request, port); //endpoint 0 opResult = usb_pipe_control_read( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_error("could not get port status %d\n", opResult); } if (rcvd_size != sizeof (usb_port_status_t)) { usb_log_error("received status has incorrect" " size\n"); } //something connected/disconnected if (usb_port_connect_change(&status)) { usb_log_debug("some connection changed\n"); } usb_log_debug("status: %s\n", usb_debug_str_buffer( (uint8_t *) & status, 4, 4)); } } return EOK; } /** * release default address used by given hub * * Also unsets hub->is_default_address_used. Convenience wrapper function. * @note hub->connection MUST be open for communication * @param hub hub representation * @return error code */ static int usb_hub_release_default_address(usb_hub_info_t * hub) { int opResult = usb_hc_release_default_address(&hub->connection); if (opResult != EOK) { usb_log_error("could not release default address, errno %d\n", opResult); return opResult; } hub->is_default_address_used = false; return EOK; } /** * Reset the port with new device and reserve the default address. * @param hub hub representation * @param port port number, starting from 1 * @param speed transfer speed of attached device, one of low, full or high * @return error code */ static int usb_hub_init_add_device(usb_hub_info_t * hub, uint16_t port, usb_speed_t speed) { //if this hub already uses default address, it cannot request it once more if (hub->is_default_address_used) return EREFUSED; usb_log_debug("some connection changed\n"); assert(hub->control_pipe->hc_phone); int opResult = usb_hub_clear_port_feature(hub->control_pipe, port, USB_HUB_FEATURE_C_PORT_CONNECTION); if (opResult != EOK) { usb_log_warning("could not clear port-change-connection flag\n"); } usb_device_request_setup_packet_t request; //get default address opResult = usb_hc_reserve_default_address(&hub->connection, speed); if (opResult != EOK) { usb_log_warning("cannot assign default address, it is probably " "used %d\n", opResult); return opResult; } hub->is_default_address_used = true; //reset port usb_hub_set_reset_port_request(&request, port); opResult = usb_pipe_control_write( hub->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), NULL, 0 ); if (opResult != EOK) { usb_log_error("something went wrong when reseting a port %d\n", opResult); usb_hub_release_default_address(hub); } return opResult; } /** * Finalize adding new device after port reset * * Set device`s address and start it`s driver. * @param hub hub representation * @param port port number, starting from 1 * @param speed transfer speed of attached device, one of low, full or high */ static void usb_hub_finalize_add_device(usb_hub_info_t * hub, uint16_t port, usb_speed_t speed) { int opResult; usb_log_debug("finalizing add device\n"); opResult = usb_hub_clear_port_feature(hub->control_pipe, port, USB_HUB_FEATURE_C_PORT_RESET); if (opResult != EOK) { usb_log_error("failed to clear port reset feature\n"); usb_hub_release_default_address(hub); return; } //create connection to device usb_pipe_t new_device_pipe; usb_device_connection_t new_device_connection; usb_device_connection_initialize_on_default_address( &new_device_connection, &hub->connection ); usb_pipe_initialize_default_control( &new_device_pipe, &new_device_connection); usb_pipe_probe_default_control(&new_device_pipe); /* Request address from host controller. */ usb_address_t new_device_address = usb_hc_request_address( &hub->connection, speed ); if (new_device_address < 0) { usb_log_error("failed to get free USB address\n"); opResult = new_device_address; usb_hub_release_default_address(hub); return; } usb_log_debug("setting new address %d\n", new_device_address); //opResult = usb_drv_req_set_address(hc, USB_ADDRESS_DEFAULT, // new_device_address); usb_pipe_start_session(&new_device_pipe); opResult = usb_request_set_address(&new_device_pipe, new_device_address); usb_pipe_end_session(&new_device_pipe); if (opResult != EOK) { usb_log_error("could not set address for new device %d\n", opResult); usb_hub_release_default_address(hub); return; } //opResult = usb_hub_release_default_address(hc); opResult = usb_hub_release_default_address(hub); if (opResult != EOK) { return; } devman_handle_t child_handle; //?? opResult = usb_device_register_child_in_devman(new_device_address, hub->connection.hc_handle, hub->usb_device->ddf_dev, &child_handle, NULL, NULL, NULL); if (opResult != EOK) { usb_log_error("could not start driver for new device %d\n", opResult); return; } hub->attached_devs[port].handle = child_handle; hub->attached_devs[port].address = new_device_address; //opResult = usb_drv_bind_address(hc, new_device_address, child_handle); opResult = usb_hc_register_device( &hub->connection, &hub->attached_devs[port]); if (opResult != EOK) { usb_log_error("could not assign address of device in hcd %d\n", opResult); return; } usb_log_info("Detected new device on `%s' (port %d), " \ "address %d (handle %llu).\n", hub->usb_device->ddf_dev->name, (int) port, new_device_address, child_handle); } /** * routine called when a device on port has been removed * * If the device on port had default address, it releases default address. * Otherwise does not do anything, because DDF does not allow to remove device * from it`s device tree. * @param hub hub representation * @param port port number, starting from 1 */ static void usb_hub_removed_device( usb_hub_info_t * hub, uint16_t port) { int opResult = usb_hub_clear_port_feature(hub->control_pipe, port, USB_HUB_FEATURE_C_PORT_CONNECTION); if (opResult != EOK) { usb_log_warning("could not clear port-change-connection flag\n"); } /** \TODO remove device from device manager - not yet implemented in * devide manager */ //close address if (hub->attached_devs[port].address != 0) { /*uncomment this code to use it when DDF allows device removal opResult = usb_hc_unregister_device( &hub->connection, hub->attached_devs[port].address); if(opResult != EOK) { dprintf(USB_LOG_LEVEL_WARNING, "could not release " "address of " "removed device: %d", opResult); } hub->attached_devs[port].address = 0; hub->attached_devs[port].handle = 0; */ } else { usb_log_warning("this is strange, disconnected device had " "no address\n"); //device was disconnected before it`s port was reset - //return default address usb_hub_release_default_address(hub); } } /** * Process over current condition on port. * * Turn off the power on the port. * * @param hub hub representation * @param port port number, starting from 1 */ static void usb_hub_port_over_current(usb_hub_info_t * hub, uint16_t port, uint32_t status) { /// \todo no, this is not proper sollution /// get affected ports /// power them off /// wait until there over-current is cleared /// power them on int opResult; if(usb_port_over_current(&status)){ opResult = usb_hub_clear_port_feature(hub->control_pipe, port, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power off port %d; %d\n", port, opResult); } }else{ opResult = usb_hub_set_port_feature(hub->control_pipe, port, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power on port %d; %d\n", port, opResult); } } } /** * Process interrupts on given hub port * * Accepts connection, over current and port reset change. * @param hub hub representation * @param port port number, starting from 1 */ static void usb_hub_process_interrupt(usb_hub_info_t * hub, uint16_t port) { usb_log_debug("interrupt at port %d\n", port); //determine type of change usb_pipe_t *pipe = hub->control_pipe; int opResult; usb_port_status_t status; size_t rcvd_size; usb_device_request_setup_packet_t request; //int opResult; usb_hub_set_port_status_request(&request, port); //endpoint 0 opResult = usb_pipe_control_read( pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_error("could not get port status\n"); return; } if (rcvd_size != sizeof (usb_port_status_t)) { usb_log_error("received status has incorrect size\n"); return; } //something connected/disconnected if (usb_port_connect_change(&status)) { usb_log_debug("connection change on port\n"); if (usb_port_dev_connected(&status)) { usb_log_debug("some connection changed\n"); usb_hub_init_add_device(hub, port, usb_port_speed(&status)); } else { usb_hub_removed_device(hub, port); } } //over current if (usb_port_overcurrent_change(&status)) { //check if it was not auto-resolved usb_log_debug("overcurrent change on port\n"); usb_hub_port_over_current(hub, port, status); } //port reset if (usb_port_reset_completed(&status)) { usb_log_debug("port reset complete\n"); if (usb_port_enabled(&status)) { usb_hub_finalize_add_device(hub, port, usb_port_speed(&status)); } else { usb_log_warning("port reset, but port still not " "enabled\n"); } } usb_log_debug("status x%x : %d\n ", status, status); usb_port_set_connect_change(&status, false); usb_port_set_reset(&status, false); usb_port_set_reset_completed(&status, false); usb_port_set_dev_connected(&status, false); if (status >> 16) { usb_log_info("there was some unsupported change on port %d: %X\n", port, status); } } /** * process hub over current change * * This means either to power off the hub or power it on. * @param hub_info hub instance * @param status hub status bitmask * @return error code */ static int usb_process_hub_over_current(usb_hub_info_t * hub_info, usb_hub_status_t status) { int opResult; if(usb_hub_over_current(&status)){ opResult = usb_hub_clear_feature(hub_info->control_pipe, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power off hub: %d\n", opResult); } }else{ opResult = usb_hub_set_feature(hub_info->control_pipe, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power on hub: %d\n", opResult); } } return opResult; } /** * process hub power change * * If the power has been lost, reestablish it. * If it was reestablished, re-power all ports. * @param hub_info hub instance * @param status hub status bitmask * @return error code */ static int usb_process_hub_power_change(usb_hub_info_t * hub_info, usb_hub_status_t status) { int opResult; if(usb_hub_local_power_lost(&status)){ //restart power on hub opResult = usb_hub_set_feature(hub_info->control_pipe, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power on hub: %d\n", opResult); } }else{//power reestablished on hub- restart ports int port; for(port=0;portport_count;++port){ opResult = usb_hub_set_port_feature( hub_info->control_pipe, port, USB_HUB_FEATURE_PORT_POWER); if (opResult != EOK) { usb_log_error("cannot power on port %d; %d\n", port, opResult); } } } return opResult; } /** * process hub interrupts * * The change can be either in the over-current condition or * local-power lost condition. * @param hub_info hub instance */ static void usb_hub_process_global_interrupt(usb_hub_info_t * hub_info){ usb_log_debug("global interrupt on a hub\n"); usb_pipe_t *pipe = hub_info->control_pipe; int opResult; usb_port_status_t status; size_t rcvd_size; usb_device_request_setup_packet_t request; //int opResult; usb_hub_set_hub_status_request(&request); //endpoint 0 opResult = usb_pipe_control_read( pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_error("could not get hub status\n"); return; } if (rcvd_size != sizeof (usb_port_status_t)) { usb_log_error("received status has incorrect size\n"); return; } //port reset if (usb_hub_over_current_change(&status)) { usb_process_hub_over_current(hub_info,status); } if (usb_hub_local_power_change(&status)) { usb_process_hub_power_change(hub_info,status); } } /** * this is an attempt to initialize non-removable devices in the hub * * @param hub_info hub instance * @param port port number, counting from 1 * @return error code */ static int initialize_non_removable(usb_hub_info_t * hub_info, unsigned int port) { int opResult; usb_log_debug("there is not pluged in non-removable device on " "port %d\n", port ); //usb_hub_init_add_device(hub_info, port, usb_port_speed(&status)); usb_port_status_t status; size_t rcvd_size; usb_device_request_setup_packet_t request; //int opResult; usb_hub_set_port_status_request(&request, port); //endpoint 0 opResult = usb_pipe_control_read( hub_info->control_pipe, &request, sizeof (usb_device_request_setup_packet_t), &status, 4, &rcvd_size ); if (opResult != EOK) { usb_log_error("could not get port status %d\n", opResult); return opResult; } if (rcvd_size != sizeof (usb_port_status_t)) { usb_log_error("received status has incorrect size\n"); return opResult; } usb_log_debug("port status %d, x%x\n", status, status); if (usb_port_dev_connected(&status)) { usb_log_debug("there is connected device on this port\n"); } if (!hub_info->is_default_address_used) usb_hub_init_add_device(hub_info, port, usb_port_speed(&status)); return opResult; } /** * check changes on hub * * Handles changes on each port with a status change. * @param hub_info hub representation * @return error code */ int usb_hub_check_hub_changes(usb_hub_info_t * hub_info) { int opResult; opResult = usb_pipe_start_session( hub_info->status_change_pipe); //this might not be necessary - if all non-removables are ok, it is //not needed here opResult = usb_pipe_start_session(hub_info->control_pipe); if (opResult != EOK) { usb_log_error("could not initialize communication for hub; %d\n", opResult); return opResult; } size_t port_count = hub_info->port_count; //first check non-removable devices { unsigned int port; for (port = 1; port <= port_count; ++port) { bool is_non_removable = hub_info->not_initialized_non_removables[port/8] & (1 << (port % 8)); if (is_non_removable) { opResult = initialize_non_removable(hub_info, port); } } } /// FIXME: count properly size_t byte_length = ((port_count + 1) / 8) + 1; void *change_bitmap = malloc(byte_length); size_t actual_size; /* * Send the request. */ opResult = usb_pipe_read( hub_info->status_change_pipe, change_bitmap, byte_length, &actual_size ); if (opResult != EOK) { free(change_bitmap); usb_log_warning("something went wrong while getting the" "status of hub\n"); usb_pipe_end_session(hub_info->status_change_pipe); return opResult; } unsigned int port; if (opResult != EOK) { usb_log_error("could not start control pipe session %d\n", opResult); usb_pipe_end_session(hub_info->status_change_pipe); return opResult; } opResult = usb_hc_connection_open(&hub_info->connection); if (opResult != EOK) { usb_log_error("could not start host controller session %d\n", opResult); usb_pipe_end_session(hub_info->control_pipe); usb_pipe_end_session(hub_info->status_change_pipe); return opResult; } ///todo, opresult check, pre obe konekce bool interrupt; interrupt = ((uint8_t*)change_bitmap)[0] & 1; if(interrupt){ usb_hub_process_global_interrupt(hub_info); } for (port = 1; port < port_count + 1; ++port) { interrupt = ((uint8_t*) change_bitmap)[port / 8] & (1<<(port % 8)); if (interrupt) { usb_hub_process_interrupt( hub_info, port); } } /// \todo check hub status usb_hc_connection_close(&hub_info->connection); usb_pipe_end_session(hub_info->control_pipe); usb_pipe_end_session(hub_info->status_change_pipe); free(change_bitmap); return EOK; } /** * @} */