[b8507a1] | 1 | /*
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| 2 | * Copyright (c) 2010 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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[bd8c753d] | 29 | /** @addtogroup drvusbvhc
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[b8507a1] | 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * @brief Virtual USB hub.
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| 34 | */
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[79ae36dd] | 35 |
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[4b4c797] | 36 | #include <usb/classes/classes.h>
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[b8507a1] | 37 | #include <usbvirt/device.h>
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| 38 | #include <errno.h>
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[79ae36dd] | 39 | #include <async.h>
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[0995cd6] | 40 | #include <str_error.h>
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[b8a3cda] | 41 | #include <stdlib.h>
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[eb1a2f4] | 42 | #include <ddf/driver.h>
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| 43 | #include <devman.h>
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[7d521e24] | 44 | #include <usb/dev/hub.h>
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| 45 | #include <usb/dev/recognise.h>
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[b8507a1] | 46 |
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| 47 | #include "hub.h"
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[774afaae] | 48 | #include "vhcd.h"
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[eb1a2f4] | 49 | #include "conn.h"
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[b8507a1] | 50 |
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[6cb58e6] | 51 | usbvirt_device_t virtual_hub_device = {
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| 52 | .name = "root hub",
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| 53 | .ops = &hub_ops,
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| 54 | .address = 0
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| 55 | };
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| 56 |
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[eb1a2f4] | 57 | static ddf_dev_ops_t rh_ops = {
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| 58 | .interfaces[USB_DEV_IFACE] = &rh_usb_iface,
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| 59 | };
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[b8507a1] | 60 |
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[774afaae] | 61 | static int hub_register_in_devman_fibril(void *arg);
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[b8507a1] | 62 |
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[eb1a2f4] | 63 | void virtual_hub_device_init(ddf_fun_t *hc_dev)
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[774afaae] | 64 | {
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| 65 | virthub_init(&virtual_hub_device);
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[b8507a1] | 66 |
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[774afaae] | 67 | /*
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| 68 | * We need to register the root hub.
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| 69 | * This must be done in separate fibril because the device
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| 70 | * we are connecting to are ourselves and we cannot connect
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| 71 | * before leaving the add_device() function.
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| 72 | */
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| 73 | fid_t root_hub_registration
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| 74 | = fibril_create(hub_register_in_devman_fibril, hc_dev);
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| 75 | if (root_hub_registration == 0) {
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[0b31409] | 76 | usb_log_fatal("Failed to create hub registration fibril.\n");
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[774afaae] | 77 | return;
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[b8507a1] | 78 | }
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| 79 |
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[774afaae] | 80 | fibril_add_ready(root_hub_registration);
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| 81 | }
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[b8507a1] | 82 |
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[b476347] | 83 | static int pretend_port_rest(int unused, void *unused2)
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| 84 | {
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| 85 | return EOK;
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| 86 | }
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| 87 |
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[8f8ae1fd] | 88 | /** Register root hub in devman.
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| 89 | *
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| 90 | * @param arg Host controller device (type <code>device_t *</code>).
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| 91 | * @return Error code.
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| 92 | */
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[774afaae] | 93 | int hub_register_in_devman_fibril(void *arg)
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[0995cd6] | 94 | {
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[eb1a2f4] | 95 | ddf_fun_t *hc_dev = (ddf_fun_t *) arg;
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[8f8ae1fd] | 96 |
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[b476347] | 97 | /*
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| 98 | * Wait until parent device is properly initialized.
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| 99 | */
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[79ae36dd] | 100 | async_sess_t *sess;
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[ef8d655] | 101 | do {
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[79ae36dd] | 102 | sess = devman_device_connect(EXCHANGE_SERIALIZE, hc_dev->handle, 0);
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| 103 | } while (!sess);
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| 104 | async_hangup(sess);
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[8f8ae1fd] | 105 |
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[eb1a2f4] | 106 | int rc;
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| 107 |
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[b476347] | 108 | usb_hc_connection_t hc_conn;
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[eb1a2f4] | 109 | rc = usb_hc_connection_initialize(&hc_conn, hc_dev->handle);
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| 110 | assert(rc == EOK);
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[8f8ae1fd] | 111 |
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[eb1a2f4] | 112 | rc = usb_hc_connection_open(&hc_conn);
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| 113 | assert(rc == EOK);
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[8f8ae1fd] | 114 |
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[eb1a2f4] | 115 | ddf_fun_t *hub_dev;
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| 116 | rc = usb_hc_new_device_wrapper(hc_dev->dev, &hc_conn,
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| 117 | USB_SPEED_FULL,
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[b476347] | 118 | pretend_port_rest, 0, NULL,
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[eb1a2f4] | 119 | NULL, NULL, &rh_ops, hc_dev, &hub_dev);
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[b476347] | 120 | if (rc != EOK) {
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| 121 | usb_log_fatal("Failed to create root hub: %s.\n",
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| 122 | str_error(rc));
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| 123 | }
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[8f8ae1fd] | 124 |
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[b476347] | 125 | usb_hc_connection_close(&hc_conn);
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[8f8ae1fd] | 126 |
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[eb1a2f4] | 127 | usb_log_info("Created root hub function (handle %zu).\n",
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| 128 | (size_t) hub_dev->handle);
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| 129 |
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[b476347] | 130 | return 0;
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[0995cd6] | 131 | }
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[b8507a1] | 132 |
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| 133 | /**
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| 134 | * @}
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| 135 | */
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