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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* iPod driver based on code from the ipodlinux project - http://ipodlinux.org
* Adapted for Rockbox in January 2006
* Original file: podzilla/usb.c
* Copyright (C) 2005 Adam Johnston
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "system.h"
#include "usb.h"
#include "button.h"
#include "ata.h"
#include "string.h"
#include "usb_core.h"
#include "usb_drv.h"
void usb_init_device(void)
{
/* enable usb module */
outl(inl(0x7000002C) | 0x3000000, 0x7000002C);
DEV_EN |= DEV_USB0;
DEV_EN |= DEV_USB1;
/* reset both USBs */
DEV_RS |= DEV_USB0;
DEV_RS &=~DEV_USB0;
DEV_RS |= DEV_USB1;
DEV_RS &=~DEV_USB1;
DEV_INIT2 |= INIT_USB;
while ((inl(0x70000028) & 0x80) == 0);
outl(inl(0x70000028) | 0x2, 0x70000028);
udelay(100000);
/* disable USB-devices until USB is detected via GPIO */
#ifndef BOOTLOADER
/* Disabling USB0 in the bootloader makes the OF not load */
DEV_EN &= ~DEV_USB0;
#endif
DEV_EN &= ~DEV_USB1;
DEV_INIT2 &= ~INIT_USB;
#if defined(IPOD_COLOR) || defined(IPOD_4G) \
|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
/* GPIO C bit 1 is firewire detect */
GPIOC_ENABLE |= 0x02;
GPIOC_OUTPUT_EN &= ~0x02;
#endif
}
void usb_enable(bool on)
{
if (on) {
/* if USB is detected, re-enable the USB-devices, otherwise make sure it's disabled */
DEV_EN |= DEV_USB0;
DEV_EN |= DEV_USB1;
DEV_INIT2 |= INIT_USB;
usb_core_init();
}
else {
usb_core_exit();
/* Disable USB devices */
#ifndef BOOTLOADER
/* Disabling USB0 in the bootloader makes the OF not load */
DEV_EN &=~ DEV_USB0;
#endif
DEV_EN &=~ DEV_USB1;
DEV_INIT2 &=~ INIT_USB;
}
}
static bool usb_pin_detect(void)
{
bool retval = false;
#if defined(IPOD_4G) || defined(IPOD_COLOR) \
|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
/* GPIO D bit 3 is usb detect */
if (GPIOD_INPUT_VAL & 0x08)
retval = true;
#elif defined(IPOD_NANO) || defined(IPOD_VIDEO)
/* GPIO L bit 4 is usb detect */
if (GPIOL_INPUT_VAL & 0x10)
retval = true;
#elif defined(SANSA_C200)
/* GPIO H bit 1 is usb detect */
if (GPIOH_INPUT_VAL & 0x02)
retval = true;
#elif defined(SANSA_E200)
/* GPIO B bit 4 is usb detect */
if (GPIOB_INPUT_VAL & 0x10)
retval = true;
#elif defined(IRIVER_H10) || defined(IRIVER_H10_5GB) || defined(MROBE_100)
/* GPIO L bit 2 is usb detect */
if (GPIOL_INPUT_VAL & 0x4)
retval = true;
#endif
return retval;
}
/* detect host or charger (INSERTED or POWERED) */
int usb_detect(void)
{
if(usb_pin_detect()) {
return USB_INSERTED;
}
else {
return USB_EXTRACTED;
}
}
#if defined(IPOD_COLOR) || defined(IPOD_4G) \
|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
bool firewire_detect(void)
{
/* GPIO C bit 1 is firewire detect */
if (!(GPIOC_INPUT_VAL & 0x02))
/* no charger detection needed for firewire */
return true;
else
return false;
}
#endif
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