| 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 drvusbohcihc
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| 29 | * @{
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| 30 | */
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| 31 | /** @file
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| 32 | * @brief OHCI Host controller driver routines
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| 33 | */
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| 34 | #include <errno.h>
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| 35 | #include <str_error.h>
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| 36 | #include <adt/list.h>
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| 37 | #include <libarch/ddi.h>
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| 38 |
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| 39 | #include <usb/debug.h>
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| 40 | #include <usb/usb.h>
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| 41 | #include <usb/ddfiface.h>
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| 42 | #include <usb_iface.h>
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| 43 |
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| 44 | #include "ohci_hc.h"
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| 45 |
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| 46 | int ohci_hc_init(ohci_hc_t *instance, ddf_fun_t *fun,
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| 47 | uintptr_t regs, size_t reg_size, bool interrupts)
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| 48 | {
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| 49 | assert(instance);
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| 50 | int ret = pio_enable((void*)regs, reg_size, (void**)&instance->registers);
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| 51 | if (ret != EOK) {
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| 52 | usb_log_error("Failed to gain access to device registers.\n");
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| 53 | return ret;
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| 54 | }
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| 55 | instance->registers->interrupt_disable = 0;
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| 56 | /* enable interrupt on root hub status change */
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| 57 | instance->registers->interupt_enable |= IE_RHSC | IE_MIE;
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| 58 |
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| 59 |
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| 60 | ohci_rh_init(&instance->rh, instance->registers);
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| 61 | /* TODO: implement */
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| 62 | /* TODO: register root hub */
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| 63 | return EOK;
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| 64 | }
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| 65 | /*----------------------------------------------------------------------------*/
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| 66 | int ohci_hc_schedule(ohci_hc_t *instance, batch_t *batch)
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| 67 | {
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| 68 | assert(instance);
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| 69 | assert(batch);
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| 70 | if (batch->target.address == instance->rh.address) {
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| 71 | ohci_rh_request(&instance->rh, batch);
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| 72 | return EOK;
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| 73 | }
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| 74 | /* TODO: implement */
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| 75 | return EOK;
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| 76 | }
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| 77 | /*----------------------------------------------------------------------------*/
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| 78 | void ohci_hc_interrupt(ohci_hc_t *instance, uint16_t status)
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| 79 | {
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| 80 | assert(instance);
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| 81 | /* TODO: Check for interrupt cause */
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| 82 | ohci_rh_interrupt(&instance->rh);
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| 83 | /* TODO: implement */
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| 84 | }
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| 85 | /**
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| 86 | * @}
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| 87 | */
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