| 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 | /** @addtogroup drvusbohci
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| 29 | * @{
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| 30 | */
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| 31 | /** @file
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| 32 | * @brief OHCI driver
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| 33 | */
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| 34 | #ifndef DRV_OHCI_ROOT_HUB_H
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| 35 | #define DRV_OHCI_ROOT_HUB_H
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| 36 |
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| 37 | #include <usb/usb.h>
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| 38 | #include <usb/dev/driver.h>
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| 39 | #include <usb/host/usb_transfer_batch.h>
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| 40 |
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| 41 | #include "ohci_regs.h"
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| 42 |
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| 43 | #define HUB_DESCRIPTOR_MAX_SIZE (7 + 2 + 2)
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| 44 |
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| 45 | /**
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| 46 | * ohci root hub representation
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| 47 | */
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| 48 | typedef struct rh {
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| 49 | /** pointer to ohci driver registers */
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| 50 | ohci_regs_t *registers;
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| 51 | /** usb address of the root hub */
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| 52 | usb_address_t address;
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| 53 | /** hub port count */
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| 54 | size_t port_count;
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| 55 | /** interrupt transfer waiting for an actual interrupt to occur */
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| 56 | usb_transfer_batch_t *unfinished_interrupt_transfer;
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| 57 | /** size of interrupt buffer */
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| 58 | size_t interrupt_mask_size;
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| 59 | /** Descriptors */
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| 60 | struct {
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| 61 | usb_standard_configuration_descriptor_t configuration;
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| 62 | usb_standard_interface_descriptor_t interface;
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| 63 | usb_standard_endpoint_descriptor_t endpoint;
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| 64 | uint8_t hub[HUB_DESCRIPTOR_MAX_SIZE];
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| 65 | } __attribute__ ((packed)) descriptors;
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| 66 | /** size of hub descriptor */
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| 67 | size_t hub_descriptor_size;
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| 68 | } rh_t;
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| 69 |
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| 70 | void rh_init(rh_t *instance, ohci_regs_t *regs);
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| 71 |
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| 72 | void rh_request(rh_t *instance, usb_transfer_batch_t *request);
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| 73 |
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| 74 | void rh_interrupt(rh_t *instance);
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| 75 | #endif
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| 76 | /**
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| 77 | * @}
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| 78 | */
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