| 1 | /*
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| 2 | * Copyright (c) 2011 Jan Vesely
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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 drvusbuhci
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | * @brief UHCI driver
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| 34 | */
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| 35 | #ifndef UTILS_DEVICE_KEEPER_H
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| 36 | #define UTILS_DEVICE_KEEPER_H
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| 37 | #include <devman.h>
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| 38 | #include <fibril_synch.h>
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| 39 | #include <usb/usb.h>
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| 40 |
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| 41 | #define USB_ADDRESS_COUNT (USB11_ADDRESS_MAX + 1)
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| 42 |
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| 43 | struct usb_device_info {
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| 44 | usb_speed_t speed;
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| 45 | bool occupied;
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| 46 | devman_handle_t handle;
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| 47 | };
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| 48 |
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| 49 | typedef struct device_keeper {
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| 50 | struct usb_device_info devices[USB_ADDRESS_COUNT];
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| 51 | fibril_mutex_t guard;
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| 52 | fibril_condvar_t default_address_occupied;
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| 53 | usb_address_t last_address;
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| 54 | } device_keeper_t;
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| 55 |
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| 56 | void device_keeper_init(device_keeper_t *instance);
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| 57 | void device_keeper_reserve_default(
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| 58 | device_keeper_t *instance, usb_speed_t speed);
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| 59 | void device_keeper_release_default(device_keeper_t *instance);
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| 60 |
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| 61 | usb_address_t device_keeper_request(
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| 62 | device_keeper_t *instance, usb_speed_t speed);
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| 63 | void device_keeper_bind(
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| 64 | device_keeper_t *instance, usb_address_t address, devman_handle_t handle);
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| 65 | void device_keeper_release(device_keeper_t *instance, usb_address_t address);
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| 66 | usb_address_t device_keeper_find(
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| 67 | device_keeper_t *instance, devman_handle_t handle);
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| 68 |
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| 69 | usb_speed_t device_keeper_speed(
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| 70 | device_keeper_t *instance, usb_address_t address);
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| 71 | #endif
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| 72 | /**
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| 73 | * @}
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| 74 | */
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