[net-next-2.6.git] / drivers / usb / wusbcore / wa-hc.c

/*
 * 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 "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)
{
	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 = le16_to_cpu(wa->dti_epd->wMaxPacketSize);
	wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
	if (wa->xfer_result == NULL)
		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);

/**
 * 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");
Commit	Line	Data
df365423 IPG	1	/*
	2	* Wire Adapter Host Controller Driver
	3	* Common items to HWA and DWA based HCDs
	4	*
	5	* Copyright (C) 2005-2006 Intel Corporation
	6	* Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License version
	10	* 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	20	* 02110-1301, USA.
	21	*
	22	*
	23	* FIXME: docs
	24	*/
5a0e3ad6	25	#include <linux/slab.h>
df365423 IPG	26	#include "wusbhc.h"
	27	#include "wa-hc.h"
	28
	29	/**
	30	* Assumes
	31	*
	32	* wa->usb_dev and wa->usb_iface initialized and refcounted,
	33	* wa->wa_descr initialized.
	34	*/
	35	int wa_create(struct wahc wa, struct usb_interface iface)
	36	{
	37	int result;
	38	struct device *dev = &iface->dev;
	39
	40	result = wa_rpipes_create(wa);
	41	if (result < 0)
	42	goto error_rpipes_create;
	43	/* Fill up Data Transfer EP pointers */
	44	wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
	45	wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
	46	wa->xfer_result_size = le16_to_cpu(wa->dti_epd->wMaxPacketSize);
	47	wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
	48	if (wa->xfer_result == NULL)
	49	goto error_xfer_result_alloc;
	50	result = wa_nep_create(wa, iface);
	51	if (result < 0) {
	52	dev_err(dev, "WA-CDS: can't initialize notif endpoint: %d\n",
	53	result);
	54	goto error_nep_create;
	55	}
	56	return 0;
	57
	58	error_nep_create:
	59	kfree(wa->xfer_result);
	60	error_xfer_result_alloc:
	61	wa_rpipes_destroy(wa);
	62	error_rpipes_create:
	63	return result;
	64	}
	65	EXPORT_SYMBOL_GPL(wa_create);
	66
	67
	68	void __wa_destroy(struct wahc *wa)
	69	{
	70	if (wa->dti_urb) {
	71	usb_kill_urb(wa->dti_urb);
	72	usb_put_urb(wa->dti_urb);
	73	usb_kill_urb(wa->buf_in_urb);
	74	usb_put_urb(wa->buf_in_urb);
	75	}
	76	kfree(wa->xfer_result);
	77	wa_nep_destroy(wa);
	78	wa_rpipes_destroy(wa);
	79	}
	80	EXPORT_SYMBOL_GPL(__wa_destroy);
	81
	82	/**
	83	* wa_reset_all - reset the WA device
	84	* @wa: the WA to be reset
	85	*
	86	* For HWAs the radio controller and all other PALs are also reset.
	87	*/
	88	void wa_reset_all(struct wahc *wa)
	89	{
90	/* FIXME: assuming HWA. */
91	wusbhc_reset_all(wa->wusb);
92	}
93
94	MODULE_AUTHOR("Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>");
95	MODULE_DESCRIPTION("Wireless USB Wire Adapter core");
96	MODULE_LICENSE("GPL");