/* * Copyright (c) 2011 Jan Vesely * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup drvusbohci * @{ */ /** @file * @brief OHCI driver */ #include #include #include #include "ohci_endpoint.h" #include "hc.h" /** Callback to set toggle on ED. * * @param[in] hcd_ep hcd endpoint structure * @param[in] toggle new value of toggle bit */ static void ohci_ep_toggle_set(void *ohci_ep, int toggle) { ohci_endpoint_t *instance = ohci_ep; assert(instance); assert(instance->ed); ed_toggle_set(instance->ed, toggle); } /** Callback to get value of toggle bit. * * @param[in] hcd_ep hcd endpoint structure * @return Current value of toggle bit. */ static int ohci_ep_toggle_get(void *ohci_ep) { ohci_endpoint_t *instance = ohci_ep; assert(instance); assert(instance->ed); return ed_toggle_get(instance->ed); } /** Creates new hcd endpoint representation. * * @param[in] ep USBD endpoint structure * @return Error code. */ int ohci_endpoint_init(hcd_t *hcd, endpoint_t *ep) { assert(ep); ohci_endpoint_t *ohci_ep = malloc(sizeof(ohci_endpoint_t)); if (ohci_ep == NULL) return ENOMEM; ohci_ep->ed = malloc32(sizeof(ed_t)); if (ohci_ep->ed == NULL) { free(ohci_ep); return ENOMEM; } ohci_ep->td = malloc32(sizeof(td_t)); if (ohci_ep->td == NULL) { free32(ohci_ep->ed); free(ohci_ep); return ENOMEM; } link_initialize(&ohci_ep->link); ed_init(ohci_ep->ed, ep, ohci_ep->td); endpoint_set_hc_data( ep, ohci_ep, ohci_ep_toggle_get, ohci_ep_toggle_set); hc_enqueue_endpoint(hcd_get_driver_data(hcd), ep); return EOK; } /** Disposes hcd endpoint structure * * @param[in] hcd driver using this instance. * @param[in] ep endpoint structure. */ void ohci_endpoint_fini(hcd_t *hcd, endpoint_t *ep) { assert(hcd); assert(ep); ohci_endpoint_t *instance = ohci_endpoint_get(ep); hc_dequeue_endpoint(hcd_get_driver_data(hcd), ep); endpoint_clear_hc_data(ep); if (instance) { free32(instance->ed); free32(instance->td); free(instance); } } /** * @} */