rockbox/firmware/target/arm/imx233/usb-imx233.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2011 by Amaury Pouly
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include "config.h"
#include "cpu.h"
#include "string.h"
#include "usb.h"
#include "usb_drv.h"
#include "usb_core.h"
#include "system.h"
#include "system-target.h"
#include "clkctrl-imx233.h"
#include "power-imx233.h"

void usb_insert_int(void)
{
    usb_status_event(USB_INSERTED);
}

void usb_remove_int(void)
{
    usb_status_event(USB_EXTRACTED);
}

void usb_attach(void)
{
}

void usb_drv_int_enable(bool enable)
{
    imx233_icoll_enable_interrupt(INT_SRC_USB_CTRL, enable);
}

void INT_USB_CTRL(void)
{
    usb_drv_int();
}

void usb_init_device(void)
{
    usb_drv_startup();
}

int usb_detect(void)
{
    return BF_RD(POWER_STS, VBUSVALID) ? USB_INSERTED : USB_EXTRACTED;
}

void usb_enable(bool on)
{
    if(on)
    {
        imx233_clkctrl_enable_usb_pll(true);
        imx233_enable_usb_phy(true);
        imx233_enable_usb_controller(true);
        usb_core_init();
    }
    else
    {
        usb_core_exit();
        imx233_enable_usb_controller(false);
        imx233_enable_usb_phy(false);
        imx233_clkctrl_enable_usb_pll(false);
    }
}