source: mainline/uspace/drv/bus/usb/ohci/hc.h@ 8e3d17f

/*
 * 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 host controller driver structure
 */
#ifndef DRV_OHCI_HC_H
#define DRV_OHCI_HC_H

#include <fibril.h>
#include <fibril_synch.h>
#include <adt/list.h>
#include <ddi.h>

#include <usb/usb.h>
#include <usb/host/device_keeper.h>
#include <usb/host/usb_endpoint_manager.h>
#include <usb/host/hcd.h>

#include "ohci_batch.h"
#include "ohci_regs.h"
#include "root_hub.h"
#include "endpoint_list.h"
#include "hw_struct/hcca.h"

/** Main OHCI driver structure */
typedef struct hc {
        /** Generic USB hc driver */
        hcd_t generic;

        /** Memory mapped I/O registers area */
        ohci_regs_t *registers;
        /** Host controller communication area structure */
        hcca_t *hcca;

        /** Transfer schedules */
        endpoint_list_t lists[4];
        /** List of active transfers */
        list_t pending_batches;

        /** Fibril for periodic checks if interrupts can't be used */
        fid_t interrupt_emulator;

        /** Guards schedule and endpoint manipulation */
        fibril_mutex_t guard;

        /** USB hub emulation structure */
        rh_t rh;
} hc_t;

size_t hc_irq_cmd_count(void);
int hc_get_irq_commands(
    irq_cmd_t cmds[], size_t cmd_size, uintptr_t regs, size_t reg_size);
int hc_register_hub(hc_t *instance, ddf_fun_t *hub_fun);
int hc_init(hc_t *instance, uintptr_t regs, size_t reg_size, bool interrupts);

/** Safely dispose host controller internal structures
 *
 * @param[in] instance Host controller structure to use.
 */
static inline void hc_fini(hc_t *instance) { /* TODO: implement*/ };

void hc_enqueue_endpoint(hc_t *instance, endpoint_t *ep);
void hc_dequeue_endpoint(hc_t *instance, endpoint_t *ep);

void hc_interrupt(hc_t *instance, uint32_t status);
#endif
/**
 * @}
 */