3a6d4791d7
1) Move ARC OTG USB (used in PP502x) driver code into it's own file, drivers/arcotg_udc.c. Hopefully in the future we will be able to adapt more of the Linux driver and add it to this file. 2) Rename mx31.h to arcotg_udc.h to reflect the file the code came from. It's also a more accurate name for the USB controller. 3) Get rid of one more inl()/outl() in usb-pp.c and use the relevant #define instead. 4) Add dr_controller_stop(). Not used yet. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12340 a1c6a512-1295-4272-9138-f99709370657
152 lines
4.5 KiB
C
152 lines
4.5 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 "cpu.h"
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#include "kernel.h"
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#include "thread.h"
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#include "system.h"
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#include "debug.h"
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#include "ata.h"
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#include "fat.h"
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#include "disk.h"
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#include "panic.h"
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#include "lcd.h"
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#include "adc.h"
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#include "usb.h"
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#include "button.h"
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#include "sprintf.h"
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#include "string.h"
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#include "hwcompat.h"
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#include "usb-target.h"
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#include "arcotg_udc.h"
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void usb_init_device(void)
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{
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int r0;
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outl(inl(0x70000084) | 0x200, 0x70000084);
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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_INIT |= INIT_USB;
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while ((inl(0x70000028) & 0x80) == 0);
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UDC_PORTSC1 |= PORTSCX_PORT_RESET;
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while ((UDC_PORTSC1 & PORTSCX_PORT_RESET) != 0);
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UDC_OTGSC |= 0x5F000000;
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if( (UDC_OTGSC & 0x100) == 0) {
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UDC_USBMODE &=~ USB_MODE_CTRL_MODE_HOST;
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UDC_USBMODE |= USB_MODE_CTRL_MODE_DEVICE;
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outl(inl(0x70000028) | 0x4000, 0x70000028);
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outl(inl(0x70000028) | 0x2, 0x70000028);
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} else {
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UDC_USBMODE |= USB_MODE_CTRL_MODE_DEVICE;
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outl(inl(0x70000028) &~0x4000, 0x70000028);
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outl(inl(0x70000028) | 0x2, 0x70000028);
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}
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UDC_USBCMD |= USB_CMD_CTRL_RESET;
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while((UDC_USBCMD & USB_CMD_CTRL_RESET) != 0);
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r0 = UDC_PORTSC1;
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/* Note from IPL source (referring to next 5 lines of code:
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THIS NEEDS TO BE CHANGED ONCE THERE IS KERNEL USB */
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DEV_INIT |= INIT_USB;
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DEV_EN |= DEV_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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}
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void usb_enable(bool on)
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{
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/* This device specific code will eventually give way to proper USB
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handling, which should be the same for all PortalPlayer targets. */
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if (on)
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{
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#if IPOD_ARCH || defined(IRIVER_H10) || defined (IRIVER_H10_5GB)
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/* For the H10 and iPod, we can only do one thing with USB mode - reboot
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into the flash-based disk-mode. This does not return. */
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/* The following code is copied from ipodlinux */
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#if defined(IPOD_COLOR) || defined(IPOD_3G) || \
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defined(IPOD_4G) || defined(IPOD_MINI)
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unsigned char* storage_ptr = (unsigned char *)0x40017F00;
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#elif defined(IPOD_NANO) || defined(IPOD_VIDEO) || defined(IPOD_MINI2G)
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unsigned char* storage_ptr = (unsigned char *)0x4001FF00;
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#endif
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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
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{
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ata_sleepnow(); /* Immediately spindown the disk. */
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sleep(HZ*2);
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#ifdef IPOD_ARCH
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memcpy(storage_ptr, "diskmode\0\0hotstuff\0\0\1", 21);
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#endif
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system_reboot(); /* Reboot */
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}
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#endif
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}
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}
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bool usb_detect(void)
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{
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static bool prev_usbstatus1 = false;
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bool usbstatus1,usbstatus2;
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/* UDC_ID should have the bit format:
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[31:24] = 0x0
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[23:16] = 0x22 (Revision number)
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[15:14] = 0x3 (Reserved)
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[13:8] = 0x3a (NID - 1's compliment of ID)
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[7:6] = 0x0 (Reserved)
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[5:0] = 0x05 (ID) */
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if (UDC_ID != 0x22FA05) {
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return false;
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}
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usbstatus1 = (UDC_OTGSC & 0x800) ? true : false;
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if ((usbstatus1 == true) && (prev_usbstatus1 == false)) {
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dr_controller_setup();
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dr_controller_run();
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}
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prev_usbstatus1 = usbstatus1;
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usbstatus2 = (UDC_PORTSC1 & PORTSCX_CURRENT_CONNECT_STATUS) ? true : false;
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if (usbstatus1 && usbstatus2) {
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return true;
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} else {
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return false;
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}
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}
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