/*************************************************************************** * __________ __ ___. * 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; } }