/*
 * Wire Adapter Host Controller Driver
 * Common items to HWA and DWA based HCDs
 *
 * Copyright (C) 2005-2006 Intel Corporation
 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
 *
 * 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"

/**
 * Assumes
 *
 * wa->usb_dev and wa->usb_iface initialized and refcounted,
 * wa->wa_descr initialized.
 */
int wa_create(struct wahc *wa, struct usb_interface *iface,
	kernel_ulong_t quirks)
{
	int result;
	struct device *dev = &iface->dev;

	result = wa_rpipes_create(wa);
	if (result < 0)
		goto error_rpipes_create;
	wa->quirks = quirks;
	/* 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->dti_buf_size = usb_endpoint_maxp(wa->dti_epd);
	wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL);
	if (wa->dti_buf == NULL) {
		result = -ENOMEM;
		goto error_dti_buf_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->dti_buf);
error_dti_buf_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);
	}
	kfree(wa->dti_buf);
	wa_nep_destroy(wa);
	wa_rpipes_destroy(wa);
}
EXPORT_SYMBOL_GPL(__wa_destroy);

/**
 * wa_reset_all - reset the WA device
 * @wa: the WA to be reset
 *
 * For HWAs the radio controller and all other PALs are also reset.
 */
void wa_reset_all(struct wahc *wa)
{
	/* FIXME: assuming HWA. */
	wusbhc_reset_all(wa->wusb);
}

MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
MODULE_LICENSE("GPL");
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