/*
* Copyright (c) 2011 Vojtech Horky, Jan Vesely
* Copyright (c) 2018 Ondrej Hlavaty, Petr Manek
* 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 drvusbuhci
* @{
*/
/** @file
* @brief UHCI driver initialization
*/
#include <assert.h>
#include <ddf/driver.h>
#include <errno.h>
#include <io/log.h>
#include <io/logctl.h>
#include <pci_dev_iface.h>
#include <stdio.h>
#include <str_error.h>
#include <usb/debug.h>
#include <usb/host/utility.h>
#include "hc.h"
#define NAME "uhci"
static errno_t disable_legacy(hc_device_t *);
static const hc_driver_t uhci_driver = {
.name = NAME,
.hc_device_size = sizeof(hc_t),
.claim = disable_legacy,
.irq_code_gen = hc_gen_irq_code,
.hc_add = hc_add,
.start = hc_start,
.setup_root_hub = hc_setup_roothub,
.hc_gone = hc_gone,
};
/** Call the PCI driver with a request to clear legacy support register
*
* @param[in] device Device asking to disable interrupts
* @return Error code.
*/
static errno_t disable_legacy(hc_device_t *hcd)
{
assert(hcd);
async_sess_t *parent_sess = ddf_dev_parent_sess_get(hcd->ddf_dev);
if (parent_sess == NULL)
return ENOMEM;
/*
* See UHCI design guide page 45 for these values.
* Write all WC bits in USB legacy register
*/
return pci_config_space_write_16(parent_sess, 0xc0, 0xaf00);
}
/** Initialize global driver structures (NONE).
*
* @param[in] argc Number of arguments in argv vector (ignored).
* @param[in] argv Cmdline argument vector (ignored).
* @return Error code.
*
* Driver debug level is set here.
*/
int main(int argc, char *argv[])
{
printf(NAME ": HelenOS UHCI driver.\n");
log_init(NAME);
logctl_set_log_level(NAME, LVL_NOTE);
return hc_driver_main(&uhci_driver);
}
/**
* @}
*/