wa-hc.c

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/*
 * Wire Adapter Host Controller Driver
 * Common items to HWA and DWA based HCDs
 *
 * Copyright (C) 2005-2006 Intel Corporation
 * Inaky Perez-Gonzalez <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 *
 * FIXME: docs
 */
#include <linux/slab.h>
#include <linux/module.h>
#include "wusbhc.h"
#include "wa-hc.h"

int wa_create(struct wahc *wa, struct usb_interface *iface)
{
    int result;
    struct device *dev = &iface->dev;

    result = wa_rpipes_create(wa);
    if (result < 0)
        goto error_rpipes_create;
    /* Fill up Data Transfer EP pointers */
    wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
    wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
    wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
    wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
    if (wa->xfer_result == NULL) {
        result = -ENOMEM;
        goto error_xfer_result_alloc;
    }
    result = wa_nep_create(wa, iface);
    if (result < 0) {
        dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
            result);
        goto error_nep_create;
    }
    return 0;

error_nep_create:
    kfree(wa->xfer_result);
error_xfer_result_alloc:
    wa_rpipes_destroy(wa);
error_rpipes_create:
    return result;
}
EXPORT_SYMBOL_GPL(wa_create);


void __wa_destroy(struct wahc *wa)
{
    if (wa->dti_urb) {
        usb_kill_urb(wa->dti_urb);
        usb_put_urb(wa->dti_urb);
        usb_kill_urb(wa->buf_in_urb);
        usb_put_urb(wa->buf_in_urb);
    }
    kfree(wa->xfer_result);
    wa_nep_destroy(wa);
    wa_rpipes_destroy(wa);
}
EXPORT_SYMBOL_GPL(__wa_destroy);

void wa_reset_all(struct wahc *wa)
{
    /* FIXME: assuming HWA. */
    wusbhc_reset_all(wa->wusb);
}

MODULE_AUTHOR("Inaky Perez-Gonzalez <[email protected]>");
MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
MODULE_LICENSE("GPL");