cb65426b2c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15779 a1c6a512-1295-4272-9138-f99709370657
179 lines
5 KiB
C
179 lines
5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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*
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* iPod driver based on code from the ipodlinux project - http://ipodlinux.org
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* Adapted for Rockbox in January 2006
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* Original file: podzilla/usb.c
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* Copyright (C) 2005 Adam Johnston
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "usb.h"
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#include "button.h"
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#include "ata.h"
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#include "string.h"
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#include "usb_core.h"
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#include "usb_drv.h"
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void usb_init_device(void)
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{
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/* enable usb module */
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GPO32_ENABLE |= 0x200;
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outl(inl(0x7000002C) | 0x3000000, 0x7000002C);
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DEV_EN |= DEV_USB;
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DEV_RS |= DEV_USB; /* reset usb start */
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DEV_RS &=~DEV_USB;/* reset usb end */
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DEV_INIT2 |= INIT_USB;
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while ((inl(0x70000028) & 0x80) == 0);
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outl(inl(0x70000028) | 0x2, 0x70000028);
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udelay(0x186A0);
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#if defined(IPOD_COLOR) || defined(IPOD_4G) \
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|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
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/* GPIO C bit 1 is firewire detect */
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GPIOC_ENABLE |= 0x02;
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GPIOC_OUTPUT_EN &= ~0x02;
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#endif
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}
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void usb_enable(bool on)
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{
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if (on) {
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/* until we have native mass-storage mode, we want to reboot on
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usb host connect */
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#if defined(IRIVER_H10) || defined (IRIVER_H10_5GB)
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if (button_status()==BUTTON_RIGHT)
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#endif /* defined(IRIVER_H10) || defined (IRIVER_H10_5GB) */
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{
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#ifndef HAVE_FLASH_STORAGE
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ata_sleepnow(); /* Immediately spindown the disk. */
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sleep(HZ*2);
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#endif
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#ifdef IPOD_ARCH /* The following code is based on ipodlinux */
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#if CONFIG_CPU == PP5020
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memcpy((void *)0x40017f00, "diskmode\0\0hotstuff\0\0\1", 21);
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#elif CONFIG_CPU == PP5022
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memcpy((void *)0x4001ff00, "diskmode\0\0hotstuff\0\0\1", 21);
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#endif /* CONFIG_CPU */
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#endif /* IPOD_ARCH */
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system_reboot(); /* Reboot */
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}
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}
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else
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usb_core_exit();
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}
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static bool usb_pin_detect(void)
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{
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#if defined(IPOD_4G) || defined(IPOD_COLOR) \
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|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
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/* GPIO D bit 3 is usb detect */
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if (GPIOD_INPUT_VAL & 0x08)
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return true;
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#elif defined(IPOD_NANO) || defined(IPOD_VIDEO)
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/* GPIO L bit 4 is usb detect */
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if (GPIOL_INPUT_VAL & 0x10)
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return true;
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#elif defined(SANSA_C200)
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/* GPIO H bit 1 is usb detect */
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if (GPIOH_INPUT_VAL & 0x02)
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return true;
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#elif defined(SANSA_E200)
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/* GPIO B bit 4 is usb detect */
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if (GPIOB_INPUT_VAL & 0x10)
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return true;
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#elif defined(IRIVER_H10) || defined(IRIVER_H10_5GB)
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/* GPIO L bit 2 is usb detect */
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if (GPIOL_INPUT_VAL & 0x4)
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return true;
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#endif
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return false;
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}
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/* detect host or charger (INSERTED or POWERED) */
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int usb_detect(void)
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{
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static int countdown = 0;
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static int status = USB_EXTRACTED;
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static bool prev_usbstatus1 = false;
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bool usbstatus1, usbstatus2;
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#if defined(IPOD_COLOR) || defined(IPOD_4G) \
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|| defined(IPOD_MINI) || defined(IPOD_MINI2G)
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/* GPIO C bit 1 is firewire detect */
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if (!(GPIOC_INPUT_VAL & 0x02))
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/* no charger detection needed for firewire */
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return USB_INSERTED;
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#endif
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if (countdown > 0)
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{
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countdown--;
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usbstatus2 = usb_core_data_connection();
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if ((countdown == 0) || usbstatus2)
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{
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/* We now know that we have been connected to either a charger
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or a computer */
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countdown = 0;
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status = usbstatus2 ? USB_INSERTED : USB_POWERED;
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}
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return status;
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}
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usbstatus1 = usb_pin_detect();
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if (usbstatus1 == prev_usbstatus1)
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{
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/* Nothing has changed, so just return previous status */
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return status;
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}
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prev_usbstatus1 = usbstatus1;
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if (!usbstatus1)
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{ /* We have just been disconnected */
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status = USB_EXTRACTED;
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return status;
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}
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/* Run the USB stack to request full bus power */
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usb_core_init();
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if((button_status() & ~USBPOWER_BTN_IGNORE) == USBPOWER_BUTTON)
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{
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/* The user wants to charge, so it doesn't matter what we are
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connected to. */
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status = USB_POWERED;
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return status;
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}
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/* Wait up to 50 ticks (500ms) before deciding there is no computer
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attached. */
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countdown = 50;
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return status;
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}
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