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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 "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"
#include "mx31.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 |= PORTSCX_PORT_RESET;
while ((UOG_PORTSC1 & PORTSCX_PORT_RESET) != 0);
UOG_OTGSC |= 0x5F000000;
if( (UOG_OTGSC & 0x100) == 0) {
UOG_USBMODE &=~ USB_MODE_CTRL_MODE_HOST;
UOG_USBMODE |= USB_MODE_CTRL_MODE_DEVICE;
outl(inl(0x70000028) | 0x4000, 0x70000028);
outl(inl(0x70000028) | 0x2, 0x70000028);
} else {
UOG_USBMODE |= USB_MODE_CTRL_MODE_DEVICE;
outl(inl(0x70000028) &~0x4000, 0x70000028);
outl(inl(0x70000028) | 0x2, 0x70000028);
}
UOG_USBCMD |= USB_CMD_CTRL_RESET;
while((UOG_USBCMD & USB_CMD_CTRL_RESET) != 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
}
}
/*------------------------------------------------------------------
Internal Hardware related function
------------------------------------------------------------------*/
/* @qh_addr is the aligned virt addr of ep QH addr
* it is used to set endpointlistaddr Reg */
static int dr_controller_setup(void/* *qh_addr, struct device *dev*/)
{
int timeout = 0;
/* struct arc_usb_config *config;
config = udc_controller->config;
*/
/* before here, make sure usb_slave_regs has been initialized */
/* if (!qh_addr)
return -EINVAL;
*/
/* Stop and reset the usb controller */
UOG_USBCMD &= ~USB_CMD_RUN_STOP;
UOG_USBCMD |= USB_CMD_CTRL_RESET;
/* Wait for reset to complete */
timeout = 10000000;
while ((UOG_USBCMD & USB_CMD_CTRL_RESET) &&
--timeout) {
continue;
}
if (timeout == 0) {
//logf("%s: TIMEOUT", __FUNCTION__);
return 1;
}
/* Set the controller as device mode and disable setup lockout */
UOG_USBMODE |= (USB_MODE_CTRL_MODE_DEVICE | USB_MODE_SETUP_LOCK_OFF);
/* Clear the setup status */
UOG_USBSTS = 0;
/* tmp = virt_to_phys(qh_addr);
tmp &= USB_EP_LIST_ADDRESS_MASK;
usb_slave_regs->endpointlistaddr = cpu_to_le32(tmp);
*/
UOG_PORTSC1 = (UOG_PORTSC1 & ~PORTSCX_PHY_TYPE_SEL) | PORTSCX_PTS_UTMI;
/* if (config->set_vbus_power)
config->set_vbus_power(0);
*/
return 0;
}
/* just Enable DR irq reg and Set Dr controller Run */
static void dr_controller_run(void/*struct arcotg_udc *udc*/)
{
/*Enable DR irq reg */
UOG_USBINTR = USB_INTR_INT_EN | USB_INTR_ERR_INT_EN |
USB_INTR_PTC_DETECT_EN | USB_INTR_RESET_EN |
USB_INTR_DEVICE_SUSPEND | USB_INTR_SYS_ERR_EN;
/* Clear stopped bit */
/*udc->stopped = 0;*/
/* Set the controller as device mode */
UOG_USBMODE |= USB_MODE_CTRL_MODE_DEVICE;
/* Set controller to Run */
UOG_USBCMD |= USB_CMD_RUN_STOP;
return;
}
bool usb_detect(void)
{
static bool prev_usbstatus1 = false;
bool usbstatus1,usbstatus2;
/* 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;
}
usbstatus1 = (UOG_OTGSC & 0x800) ? true : false;
if ((usbstatus1 == true) && (prev_usbstatus1 == false)) {
dr_controller_setup();
dr_controller_run();
}
prev_usbstatus1 = usbstatus1;
usbstatus2 = (UOG_PORTSC1 & PORTSCX_CURRENT_CONNECT_STATUS) ? true : false;
if (usbstatus1 && usbstatus2) {
return true;
} else {
return false;
}
}
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