| 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 | #include "utils/malloc32.h"
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| 35 | #include "ohci_endpoint.h"
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| 36 | #include "hc.h"
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| 37 |
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| 38 | /** Callback to set toggle on ED.
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| 39 | *
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| 40 | * @param[in] hcd_ep hcd endpoint structure
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| 41 | * @param[in] toggle new value of toggle bit
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| 42 | */
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| 43 | static void ohci_ep_toggle_set(void *ohci_ep, int toggle)
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| 44 | {
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| 45 | ohci_endpoint_t *instance = ohci_ep;
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| 46 | assert(instance);
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| 47 | assert(instance->ed);
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| 48 | ed_toggle_set(instance->ed, toggle);
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| 49 | }
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| 50 | /*----------------------------------------------------------------------------*/
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| 51 | /** Callback to get value of toggle bit.
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| 52 | *
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| 53 | * @param[in] hcd_ep hcd endpoint structure
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| 54 | * @return Current value of toggle bit.
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| 55 | */
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| 56 | static int ohci_ep_toggle_get(void *ohci_ep)
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| 57 | {
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| 58 | ohci_endpoint_t *instance = ohci_ep;
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| 59 | assert(instance);
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| 60 | assert(instance->ed);
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| 61 | return ed_toggle_get(instance->ed);
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| 62 | }
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| 63 | /*----------------------------------------------------------------------------*/
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| 64 | /** Disposes hcd endpoint structure
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| 65 | *
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| 66 | * @param[in] hcd_ep endpoint structure
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| 67 | */
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| 68 | static void ohci_endpoint_fini(endpoint_t *ep)
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| 69 | {
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| 70 | ohci_endpoint_t *instance = ep->hc_data.data;
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| 71 | hc_dequeue_endpoint(instance->hcd->private_data, ep);
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| 72 | if (instance) {
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| 73 | free32(instance->ed);
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| 74 | free32(instance->td);
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| 75 | free(instance);
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| 76 | }
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| 77 | }
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| 78 | /*----------------------------------------------------------------------------*/
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| 79 | /** Creates new hcd endpoint representation.
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| 80 | *
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| 81 | * @param[in] ep USBD endpoint structure
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| 82 | * @return pointer to a new hcd endpoint structure, NULL on failure.
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| 83 | */
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| 84 | int ohci_endpoint_init(hcd_t *hcd, endpoint_t *ep)
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| 85 | {
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| 86 | assert(ep);
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| 87 | ohci_endpoint_t *ohci_ep = malloc(sizeof(ohci_endpoint_t));
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| 88 | if (ohci_ep == NULL)
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| 89 | return ENOMEM;
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| 90 |
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| 91 | ohci_ep->ed = malloc32(sizeof(ed_t));
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| 92 | if (ohci_ep->ed == NULL) {
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| 93 | free(ohci_ep);
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| 94 | return ENOMEM;
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| 95 | }
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| 96 |
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| 97 | ohci_ep->td = malloc32(sizeof(td_t));
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| 98 | if (ohci_ep->td == NULL) {
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| 99 | free32(ohci_ep->ed);
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| 100 | free(ohci_ep);
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| 101 | return ENOMEM;
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| 102 | }
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| 103 |
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| 104 | ed_init(ohci_ep->ed, ep);
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| 105 | ed_set_td(ohci_ep->ed, ohci_ep->td);
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| 106 | endpoint_set_hc_data(
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| 107 | ep, ohci_ep, ohci_endpoint_fini, ohci_ep_toggle_get, ohci_ep_toggle_set);
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| 108 | ohci_ep->hcd = hcd;
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| 109 | hc_enqueue_endpoint(hcd->private_data, ep);
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| 110 | return EOK;
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| 111 | }
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| 112 | /**
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| 113 | * @}
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| 114 | */
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