diff options
Diffstat (limited to 'firmware/target/arm/usb-pp.c')
| -rw-r--r-- | firmware/target/arm/usb-pp.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/firmware/target/arm/usb-pp.c b/firmware/target/arm/usb-pp.c new file mode 100644 index 0000000000..f8d0a836ad --- /dev/null +++ b/firmware/target/arm/usb-pp.c @@ -0,0 +1,136 @@ +/*************************************************************************** + * __________ __ ___. + * 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 "cpu.h" +#include "kernel.h" +#include "thread.h" +#include "system.h" +#include "debug.h" +#include "ata.h" +#include "fat.h" +#include "disk.h" +#include "panic.h" +#include "lcd.h" +#include "adc.h" +#include "usb.h" +#include "button.h" +#include "sprintf.h" +#include "string.h" +#include "hwcompat.h" + +#include "usb-target.h" + +void usb_init_device(void) +{ + int r0; + outl(inl(0x70000084) | 0x200, 0x70000084); + + outl(inl(0x7000002C) | 0x3000000, 0x7000002C); + DEV_EN |= DEV_USB; + + DEV_RS |= DEV_USB; /* reset usb start */ + DEV_RS &=~DEV_USB;/* reset usb end */ + + DEV_INIT |= INIT_USB; + while ((inl(0x70000028) & 0x80) == 0); + + UOG_PORTSC1 |= 0x100; + while ((UOG_PORTSC1 & 0x100) != 0); + + UOG_OTGSC |= 0x5F000000; + if( (UOG_OTGSC & 0x100) == 0) { + UOG_USBMODE &=~ 0x3; + UOG_USBMODE |= 0x2; + outl(inl(0x70000028) | 0x4000, 0x70000028); + outl(inl(0x70000028) | 0x2, 0x70000028); + } else { + UOG_USBMODE |= 0x2; + outl(inl(0x70000028) &~0x4000, 0x70000028); + outl(inl(0x70000028) | 0x2, 0x70000028); + } + UOG_USBCMD |= 0x2; + while((UOG_USBCMD & 0x2) != 0); + r0 = UOG_PORTSC1; + + /* Note from IPL source (referring to next 5 lines of code: + THIS NEEDS TO BE CHANGED ONCE THERE IS KERNEL USB */ + outl(inl(0x70000020) | 0x80000000, 0x70000020); + DEV_EN |= DEV_USB; + while ((inl(0x70000028) & 0x80) == 0); + outl(inl(0x70000028) | 0x2, 0x70000028); + + udelay(0x186A0); +} + +void usb_enable(bool on) +{ + /* This device specific code will eventually give way to proper USB + handling, which should be the same for all PortalPlayer targets. */ + if (on) + { +#if IPOD_ARCH || defined(IRIVER_H10) || defined (IRIVER_H10_5GB) + /* For the H10 and iPod, we can only do one thing with USB mode - reboot + into the flash-based disk-mode. This does not return. */ + + /* The following code is copied from ipodlinux */ +#if defined(IPOD_COLOR) || defined(IPOD_3G) || \ + defined(IPOD_4G) || defined(IPOD_MINI) + unsigned char* storage_ptr = (unsigned char *)0x40017F00; +#elif defined(IPOD_NANO) || defined(IPOD_VIDEO) || defined(IPOD_MINI2G) + unsigned char* storage_ptr = (unsigned char *)0x4001FF00; +#endif + +#if defined(IRIVER_H10) || defined (IRIVER_H10_5GB) + if(button_status()==BUTTON_RIGHT) +#endif + { + ata_sleepnow(); /* Immediately spindown the disk. */ + sleep(HZ*2); +#ifdef IPOD_ARCH + memcpy(storage_ptr, "diskmode\0\0hotstuff\0\0\1", 21); +#endif + system_reboot(); /* Reboot */ + } +#endif + } +} + +bool usb_detect(void) +{ + bool current_status; + + /* UOG_ID should have the bit format: + [31:24] = 0x0 + [23:16] = 0x22 (Revision number) + [15:14] = 0x3 (Reserved) + [13:8] = 0x3a (NID - 1's compliment of ID) + [7:6] = 0x0 (Reserved) + [5:0] = 0x05 (ID) */ + if (UOG_ID != 0x22FA05) { + return false; + } + current_status = (UOG_OTGSC & 0x800)?true:false; + + return current_status; +} |