| 1 | /*
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| 2 | * Copyright (c) 2011 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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| 29 | /** @addtogroup libusb
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * Implementations of DDF interfaces functions (actual implementation).
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| 34 | */
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| 35 |
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| 36 | #include <devman.h>
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| 37 | #include <async.h>
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| 38 | #include <usb_iface.h>
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| 39 | #include <usb/ddfiface.h>
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| 40 | #include <usb/hc.h>
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| 41 | #include <usb/debug.h>
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| 42 | #include <usb/dev/hub.h>
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| 43 | #include <errno.h>
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| 44 | #include <assert.h>
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| 45 |
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| 46 | #include <usb/dev.h>
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| 47 |
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| 48 | /** DDF interface for USB device, implementation for typical hub. */
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| 49 | usb_iface_t usb_iface_hub_impl = {
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| 50 | .get_hc_handle = usb_iface_get_hc_handle_device_impl,
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| 51 | .get_my_address = usb_iface_get_my_address_forward_impl,
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| 52 | };
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| 53 |
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| 54 | /** DDF interface for USB device, implementation for child of a typical hub. */
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| 55 | usb_iface_t usb_iface_hub_child_impl = {
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| 56 | .get_hc_handle = usb_iface_get_hc_handle_device_impl,
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| 57 | .get_my_address = usb_iface_get_my_address_from_device_data,
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| 58 | };
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| 59 |
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| 60 |
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| 61 | /** Get host controller handle, interface implementation for hub driver.
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| 62 | *
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| 63 | * @param[in] fun Device function the operation is running on.
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| 64 | * @param[out] handle Storage for the host controller handle.
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| 65 | * @return Error code.
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| 66 | */
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| 67 | int usb_iface_get_hc_handle_device_impl(ddf_fun_t *fun, devman_handle_t *handle)
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| 68 | {
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| 69 | assert(fun);
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| 70 | return usb_get_hc_by_handle(fun->handle, handle);
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| 71 | }
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| 72 |
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| 73 | /** Get host controller handle, interface implementation for HC driver.
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| 74 | *
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| 75 | * @param[in] fun Device function the operation is running on.
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| 76 | * @param[out] handle Storage for the host controller handle.
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| 77 | * @return Always EOK.
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| 78 | */
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| 79 | int usb_iface_get_hc_handle_hc_impl(ddf_fun_t *fun, devman_handle_t *handle)
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| 80 | {
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| 81 | assert(fun);
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| 82 |
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| 83 | if (handle != NULL) {
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| 84 | *handle = fun->handle;
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| 85 | }
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| 86 |
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| 87 | return EOK;
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| 88 | }
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| 89 |
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| 90 | /** Get USB device address, interface implementation for hub driver.
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| 91 | *
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| 92 | * @param[in] fun Device function the operation is running on.
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| 93 | * @param[in] handle Devman handle of USB device we want address of.
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| 94 | * @param[out] address Storage for USB address of device with handle @p handle.
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| 95 | * @return Error code.
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| 96 | */
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| 97 | int usb_iface_get_my_address_forward_impl(ddf_fun_t *fun,
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| 98 | usb_address_t *address)
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| 99 | {
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| 100 | assert(fun);
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| 101 | return usb_get_address_by_handle(fun->handle, address);
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| 102 | }
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| 103 |
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| 104 | /** Get USB device address, interface implementation for child of
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| 105 | * a hub driver.
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| 106 | *
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| 107 | * This implementation eccepts 0 as valid handle and replaces it with fun's
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| 108 | * handle.
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| 109 | *
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| 110 | * @param[in] fun Device function the operation is running on.
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| 111 | * @param[in] handle Devman handle of USB device we want address of.
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| 112 | * @param[out] address Storage for USB address of device with handle @p handle.
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| 113 | * @return Error code.
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| 114 | */
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| 115 | int usb_iface_get_my_address_from_device_data(ddf_fun_t *fun,
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| 116 | usb_address_t *address)
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| 117 | {
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| 118 | assert(fun);
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| 119 | assert(fun->driver_data);
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| 120 | const usb_hub_attached_device_t *device = fun->driver_data;
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| 121 | assert(device->fun == fun);
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| 122 | if (address)
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| 123 | *address = device->address;
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| 124 | return EOK;
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| 125 | }
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| 126 |
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| 127 | /**
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| 128 | * @}
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| 129 | */
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