643 lines
16 KiB
C
643 lines
16 KiB
C
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/*
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* (C) Copyright 2001
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* Denis Peter, MPL AG Switzerland
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*
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* Most of this source has been derived from the Linux USB
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* project.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/byteorder.h>
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#if (CONFIG_COMMANDS & CFG_CMD_USB)
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#include <usb.h>
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#ifdef CONFIG_USB_STORAGE
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static int usb_stor_curr_dev=-1; /* current device */
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#endif
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/* some display routines (info command) */
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char * usb_get_class_desc(unsigned char dclass)
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{
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switch(dclass) {
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case USB_CLASS_PER_INTERFACE:
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return("See Interface");
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case USB_CLASS_AUDIO:
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return("Audio");
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case USB_CLASS_COMM:
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return("Communication");
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case USB_CLASS_HID:
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return("Human Interface");
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case USB_CLASS_PRINTER:
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return("Printer");
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case USB_CLASS_MASS_STORAGE:
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return("Mass Storage");
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case USB_CLASS_HUB:
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return("Hub");
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case USB_CLASS_DATA:
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return("CDC Data");
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case USB_CLASS_VENDOR_SPEC:
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return("Vendor specific");
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default :
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return("");
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}
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}
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void usb_display_class_sub(unsigned char dclass,unsigned char subclass,unsigned char proto)
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{
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switch(dclass) {
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case USB_CLASS_PER_INTERFACE:
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printf("See Interface");
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break;
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case USB_CLASS_HID:
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printf("Human Interface, Subclass: ");
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switch(subclass) {
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case USB_SUB_HID_NONE:
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printf("None");
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break;
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case USB_SUB_HID_BOOT:
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printf("Boot ");
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switch(proto) {
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case USB_PROT_HID_NONE:
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printf("None");
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break;
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case USB_PROT_HID_KEYBOARD:
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printf("Keyboard");
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break;
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case USB_PROT_HID_MOUSE:
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printf("Mouse");
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break;
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default:
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printf("reserved");
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}
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break;
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default:
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printf("reserved");
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}
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break;
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case USB_CLASS_MASS_STORAGE:
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printf("Mass Storage, ");
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switch(subclass) {
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case US_SC_RBC:
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printf("RBC ");
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break;
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case US_SC_8020:
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printf("SFF-8020i (ATAPI)");
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break;
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case US_SC_QIC:
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printf("QIC-157 (Tape)");
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break;
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case US_SC_UFI:
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printf("UFI");
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break;
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case US_SC_8070:
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printf("SFF-8070");
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break;
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case US_SC_SCSI:
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printf("Transp. SCSI");
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break;
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default:
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printf("reserved");
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break;
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}
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printf(", ");
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switch(proto) {
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case US_PR_CB:
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printf("Command/Bulk");
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break;
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case US_PR_CBI:
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printf("Command/Bulk/Int");
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break;
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case US_PR_BULK:
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printf("Bulk only");
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break;
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default:
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printf("reserved");
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}
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break;
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default:
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printf("%s",usb_get_class_desc(dclass));
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}
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}
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void usb_display_string(struct usb_device *dev,int index)
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{
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char buffer[256];
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if (index!=0) {
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if (usb_string(dev,index,&buffer[0],256)>0);
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printf("String: \"%s\"",buffer);
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}
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}
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void usb_display_desc(struct usb_device *dev)
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{
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if (dev->descriptor.bDescriptorType==USB_DT_DEVICE) {
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printf("%d: %s, USB Revision %x.%x\n",dev->devnum,usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
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(dev->descriptor.bcdUSB>>8) & 0xff,dev->descriptor.bcdUSB & 0xff);
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if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
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printf(" - %s %s %s\n",dev->mf,dev->prod,dev->serial);
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if (dev->descriptor.bDeviceClass) {
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printf(" - Class: ");
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usb_display_class_sub(dev->descriptor.bDeviceClass,dev->descriptor.bDeviceSubClass,dev->descriptor.bDeviceProtocol);
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printf("\n");
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}
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else {
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printf(" - Class: (from Interface) %s\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass));
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}
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printf(" - PacketSize: %d Configurations: %d\n",dev->descriptor.bMaxPacketSize0,dev->descriptor.bNumConfigurations);
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printf(" - Vendor: 0x%04x Product 0x%04x Version %d.%d\n",dev->descriptor.idVendor,dev->descriptor.idProduct,(dev->descriptor.bcdDevice>>8) & 0xff,dev->descriptor.bcdDevice & 0xff);
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}
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}
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void usb_display_conf_desc(struct usb_config_descriptor *config,struct usb_device *dev)
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{
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printf(" Configuration: %d\n",config->bConfigurationValue);
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printf(" - Interfaces: %d %s%s%dmA\n",config->bNumInterfaces,(config->bmAttributes & 0x40) ? "Self Powered " : "Bus Powered ",
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(config->bmAttributes & 0x20) ? "Remote Wakeup " : "",config->MaxPower*2);
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if (config->iConfiguration) {
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printf(" - ");
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usb_display_string(dev,config->iConfiguration);
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printf("\n");
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}
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}
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void usb_display_if_desc(struct usb_interface_descriptor *ifdesc,struct usb_device *dev)
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{
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printf(" Interface: %d\n",ifdesc->bInterfaceNumber);
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printf(" - Alternate Settings %d, Endpoints: %d\n",ifdesc->bAlternateSetting,ifdesc->bNumEndpoints);
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printf(" - Class ");
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usb_display_class_sub(ifdesc->bInterfaceClass,ifdesc->bInterfaceSubClass,ifdesc->bInterfaceProtocol);
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printf("\n");
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if (ifdesc->iInterface) {
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printf(" - ");
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usb_display_string(dev,ifdesc->iInterface);
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printf("\n");
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}
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}
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void usb_display_ep_desc(struct usb_endpoint_descriptor *epdesc)
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{
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printf(" - Endpoint %d %s ",epdesc->bEndpointAddress & 0xf,(epdesc->bEndpointAddress & 0x80) ? "In" : "Out");
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switch((epdesc->bmAttributes & 0x03))
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{
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case 0: printf("Control"); break;
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case 1: printf("Isochronous"); break;
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case 2: printf("Bulk"); break;
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case 3: printf("Interrupt"); break;
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}
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printf(" MaxPacket %d",epdesc->wMaxPacketSize);
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if ((epdesc->bmAttributes & 0x03)==0x3)
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printf(" Interval %dms",epdesc->bInterval);
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printf("\n");
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}
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/* main routine to diasplay the configs, interfaces and endpoints */
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void usb_display_config(struct usb_device *dev)
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{
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struct usb_config_descriptor *config;
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struct usb_interface_descriptor *ifdesc;
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struct usb_endpoint_descriptor *epdesc;
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int i,ii;
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config= &dev->config;
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usb_display_conf_desc(config,dev);
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for(i=0;i<config->no_of_if;i++) {
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ifdesc= &config->if_desc[i];
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usb_display_if_desc(ifdesc,dev);
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for(ii=0;ii<ifdesc->no_of_ep;ii++) {
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epdesc= &ifdesc->ep_desc[ii];
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usb_display_ep_desc(epdesc);
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}
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}
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printf("\n");
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}
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/* shows the device tree recursively */
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void usb_show_tree_graph(struct usb_device *dev,char *pre)
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{
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int i,index;
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int has_child,last_child,port;
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index=strlen(pre);
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printf(" %s",pre);
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/* check if the device has connected children */
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has_child=0;
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for(i=0;i<dev->maxchild;i++) {
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if (dev->children[i]!=NULL)
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has_child=1;
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}
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/* check if we are the last one */
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last_child=1;
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if (dev->parent!=NULL) {
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for(i=0;i<dev->parent->maxchild;i++) {
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/* search for children */
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if (dev->parent->children[i]==dev) {
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/* found our pointer, see if we have a little sister */
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port=i;
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while(i++<dev->parent->maxchild) {
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if (dev->parent->children[i]!=NULL) {
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/* found a sister */
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last_child=0;
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break;
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} /* if */
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} /* while */
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} /* device found */
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} /* for all children of the parent */
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printf("\b+-");
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/* correct last child */
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if (last_child) {
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pre[index-1]=' ';
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}
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} /* if not root hub */
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else
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printf(" ");
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printf("%d ",dev->devnum);
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pre[index++]=' ';
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pre[index++]= has_child ? '|' : ' ';
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pre[index]=0;
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printf(" %s (%s, %dmA)\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
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dev->slow ? "1.5MBit/s" : "12MBit/s",dev->config.MaxPower * 2);
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if (strlen(dev->mf) ||
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strlen(dev->prod) ||
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strlen(dev->serial))
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printf(" %s %s %s %s\n",pre,dev->mf,dev->prod,dev->serial);
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printf(" %s\n",pre);
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if (dev->maxchild>0) {
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for(i=0;i<dev->maxchild;i++) {
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if (dev->children[i]!=NULL) {
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usb_show_tree_graph(dev->children[i],pre);
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pre[index]=0;
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}
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}
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}
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}
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/* main routine for the tree command */
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void usb_show_tree(struct usb_device *dev)
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{
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char preamble[32];
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memset(preamble,0,32);
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usb_show_tree_graph(dev,&preamble[0]);
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}
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/******************************************************************************
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* usb boot command intepreter. Derived from diskboot
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*/
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#ifdef CONFIG_USB_STORAGE
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int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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char *boot_device = NULL;
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char *ep;
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int dev, part=1, rcode;
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ulong addr, cnt, checksum;
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disk_partition_t info;
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image_header_t *hdr;
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block_dev_desc_t *stor_dev;
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switch (argc) {
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case 1:
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addr = CFG_LOAD_ADDR;
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boot_device = getenv ("bootdevice");
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break;
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case 2:
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addr = simple_strtoul(argv[1], NULL, 16);
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boot_device = getenv ("bootdevice");
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break;
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case 3:
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addr = simple_strtoul(argv[1], NULL, 16);
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boot_device = argv[2];
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break;
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default:
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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if (!boot_device) {
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puts ("\n** No boot device **\n");
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return 1;
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}
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dev = simple_strtoul(boot_device, &ep, 16);
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stor_dev=usb_stor_get_dev(dev);
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if (stor_dev->type == DEV_TYPE_UNKNOWN) {
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printf ("\n** Device %d not available\n", dev);
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return 1;
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}
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if (stor_dev->block_read==NULL) {
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printf("storage device not initialized. Use usb scan\n");
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return 1;
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}
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if (*ep) {
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if (*ep != ':') {
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puts ("\n** Invalid boot device, use `dev[:part]' **\n");
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return 1;
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}
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part = simple_strtoul(++ep, NULL, 16);
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}
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if (get_partition_info (stor_dev, part, &info)) {
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/* try to boot raw .... */
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strncpy((char *)&info.type[0], BOOT_PART_TYPE, sizeof(BOOT_PART_TYPE));
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strncpy((char *)&info.name[0], "Raw", 4);
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info.start=0;
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info.blksz=0x200;
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info.size=2880;
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printf("error reading partinfo...try to boot raw\n");
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}
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if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
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|
|
(strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
|
||
|
|
printf ("\n** Invalid partition type \"%.32s\""
|
||
|
|
" (expect \"" BOOT_PART_TYPE "\")\n",
|
||
|
|
info.type);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
printf ("\nLoading from USB device %d, partition %d: "
|
||
|
|
"Name: %.32s Type: %.32s\n",
|
||
|
|
dev, part, info.name, info.type);
|
||
|
|
|
||
|
|
debug ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
|
||
|
|
info.start, info.size, info.blksz);
|
||
|
|
|
||
|
|
if (stor_dev->block_read(dev, info.start, 1, (ulong *)addr) != 1) {
|
||
|
|
printf ("** Read error on %d:%d\n", dev, part);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
hdr = (image_header_t *)addr;
|
||
|
|
|
||
|
|
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
|
||
|
|
printf("\n** Bad Magic Number **\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
checksum = ntohl(hdr->ih_hcrc);
|
||
|
|
hdr->ih_hcrc = 0;
|
||
|
|
|
||
|
|
if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
|
||
|
|
puts ("\n** Bad Header Checksum **\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
hdr->ih_hcrc = htonl(checksum); /* restore checksum for later use */
|
||
|
|
|
||
|
|
print_image_hdr (hdr);
|
||
|
|
|
||
|
|
cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
|
||
|
|
cnt += info.blksz - 1;
|
||
|
|
cnt /= info.blksz;
|
||
|
|
cnt -= 1;
|
||
|
|
|
||
|
|
if (stor_dev->block_read (dev, info.start+1, cnt,
|
||
|
|
(ulong *)(addr+info.blksz)) != cnt) {
|
||
|
|
printf ("\n** Read error on %d:%d\n", dev, part);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
/* Loading ok, update default load address */
|
||
|
|
load_addr = addr;
|
||
|
|
|
||
|
|
flush_cache (addr, (cnt+1)*info.blksz);
|
||
|
|
|
||
|
|
/* Check if we should attempt an auto-start */
|
||
|
|
if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
|
||
|
|
char *local_args[2];
|
||
|
|
extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
|
||
|
|
local_args[0] = argv[0];
|
||
|
|
local_args[1] = NULL;
|
||
|
|
printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
|
||
|
|
rcode=do_bootm (cmdtp, 0, 1, local_args);
|
||
|
|
return rcode;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_USB_STORAGE */
|
||
|
|
|
||
|
|
|
||
|
|
/*********************************************************************************
|
||
|
|
* usb command intepreter
|
||
|
|
*/
|
||
|
|
int do_usb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
||
|
|
{
|
||
|
|
|
||
|
|
int i;
|
||
|
|
struct usb_device *dev = NULL;
|
||
|
|
#ifdef CONFIG_USB_STORAGE
|
||
|
|
block_dev_desc_t *stor_dev;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if ((strncmp(argv[1], "reset", 5) == 0) ||
|
||
|
|
(strncmp(argv[1], "start", 5) == 0)){
|
||
|
|
usb_stop();
|
||
|
|
printf("(Re)start USB...\n");
|
||
|
|
i = usb_init();
|
||
|
|
#ifdef CONFIG_USB_STORAGE
|
||
|
|
/* try to recognize storage devices immediately */
|
||
|
|
if (i >= 0)
|
||
|
|
usb_stor_curr_dev = usb_stor_scan(1);
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (strncmp(argv[1],"stop",4) == 0) {
|
||
|
|
#ifdef CONFIG_USB_KEYBOARD
|
||
|
|
if (argc==2) {
|
||
|
|
if (usb_kbd_deregister()!=0) {
|
||
|
|
printf("USB not stopped: usbkbd still using USB\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else { /* forced stop, switch console in to serial */
|
||
|
|
console_assign(stdin,"serial");
|
||
|
|
usb_kbd_deregister();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
printf("stopping USB..\n");
|
||
|
|
usb_stop();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (strncmp(argv[1],"tree",4) == 0) {
|
||
|
|
printf("\nDevice Tree:\n");
|
||
|
|
usb_show_tree(usb_get_dev_index(0));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (strncmp(argv[1],"inf",3) == 0) {
|
||
|
|
int d;
|
||
|
|
if (argc==2) {
|
||
|
|
for(d=0;d<USB_MAX_DEVICE;d++) {
|
||
|
|
dev=usb_get_dev_index(d);
|
||
|
|
if (dev==NULL)
|
||
|
|
break;
|
||
|
|
usb_display_desc(dev);
|
||
|
|
usb_display_config(dev);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
int d;
|
||
|
|
|
||
|
|
i=simple_strtoul(argv[2], NULL, 16);
|
||
|
|
printf("config for device %d\n",i);
|
||
|
|
for(d=0;d<USB_MAX_DEVICE;d++) {
|
||
|
|
dev=usb_get_dev_index(d);
|
||
|
|
if (dev==NULL)
|
||
|
|
break;
|
||
|
|
if (dev->devnum==i)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (dev==NULL) {
|
||
|
|
printf("*** NO Device avaiable ***\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
usb_display_desc(dev);
|
||
|
|
usb_display_config(dev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#ifdef CONFIG_USB_STORAGE
|
||
|
|
if (strncmp(argv[1], "scan", 4) == 0) {
|
||
|
|
printf(" NOTE: this command is obsolete and will be phased out\n");
|
||
|
|
printf(" please use 'usb storage' for USB storage devices information\n\n");
|
||
|
|
usb_stor_info();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strncmp(argv[1], "stor", 4) == 0) {
|
||
|
|
usb_stor_info();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strncmp(argv[1],"part",4) == 0) {
|
||
|
|
int devno, ok;
|
||
|
|
for (ok=0, devno=0; devno<USB_MAX_STOR_DEV; ++devno) {
|
||
|
|
stor_dev=usb_stor_get_dev(devno);
|
||
|
|
if (stor_dev->type!=DEV_TYPE_UNKNOWN) {
|
||
|
|
ok++;
|
||
|
|
if (devno)
|
||
|
|
printf("\n");
|
||
|
|
printf("print_part of %x\n",devno);
|
||
|
|
print_part(stor_dev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!ok) {
|
||
|
|
printf("\nno USB devices available\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (strcmp(argv[1],"read") == 0) {
|
||
|
|
if (usb_stor_curr_dev<0) {
|
||
|
|
printf("no current device selected\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
if (argc==5) {
|
||
|
|
unsigned long addr = simple_strtoul(argv[2], NULL, 16);
|
||
|
|
unsigned long blk = simple_strtoul(argv[3], NULL, 16);
|
||
|
|
unsigned long cnt = simple_strtoul(argv[4], NULL, 16);
|
||
|
|
unsigned long n;
|
||
|
|
printf ("\nUSB read: device %d block # %ld, count %ld ... ",
|
||
|
|
usb_stor_curr_dev, blk, cnt);
|
||
|
|
stor_dev=usb_stor_get_dev(usb_stor_curr_dev);
|
||
|
|
n = stor_dev->block_read(usb_stor_curr_dev, blk, cnt, (ulong *)addr);
|
||
|
|
printf ("%ld blocks read: %s\n",n,(n==cnt) ? "OK" : "ERROR");
|
||
|
|
if (n==cnt)
|
||
|
|
return 0;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (strncmp(argv[1], "dev", 3) == 0) {
|
||
|
|
if (argc == 3) {
|
||
|
|
int dev = (int)simple_strtoul(argv[2], NULL, 10);
|
||
|
|
printf ("\nUSB device %d: ", dev);
|
||
|
|
if (dev >= USB_MAX_STOR_DEV) {
|
||
|
|
printf("unknown device\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
printf ("\n Device %d: ", dev);
|
||
|
|
stor_dev=usb_stor_get_dev(dev);
|
||
|
|
dev_print(stor_dev);
|
||
|
|
if (stor_dev->type == DEV_TYPE_UNKNOWN) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
usb_stor_curr_dev = dev;
|
||
|
|
printf("... is now current device\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
printf ("\nUSB device %d: ", usb_stor_curr_dev);
|
||
|
|
stor_dev=usb_stor_get_dev(usb_stor_curr_dev);
|
||
|
|
dev_print(stor_dev);
|
||
|
|
if (stor_dev->type == DEV_TYPE_UNKNOWN) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_USB_STORAGE */
|
||
|
|
printf ("Usage:\n%s\n", cmdtp->usage);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* (CONFIG_COMMANDS & CFG_CMD_USB) */
|
||
|
|
|
||
|
|
|
||
|
|
#if (CONFIG_COMMANDS & CFG_CMD_USB)
|
||
|
|
|
||
|
|
#ifdef CONFIG_USB_STORAGE
|
||
|
|
U_BOOT_CMD(
|
||
|
|
usb, 5, 1, do_usb,
|
||
|
|
"usb - USB sub-system\n",
|
||
|
|
"reset - reset (rescan) USB controller\n"
|
||
|
|
"usb stop [f] - stop USB [f]=force stop\n"
|
||
|
|
"usb tree - show USB device tree\n"
|
||
|
|
"usb info [dev] - show available USB devices\n"
|
||
|
|
"usb storage - show details of USB storage devices\n"
|
||
|
|
"usb dev [dev] - show or set current USB storage device\n"
|
||
|
|
"usb part [dev] - print partition table of one or all USB storage devices\n"
|
||
|
|
"usb read addr blk# cnt - read `cnt' blocks starting at block `blk#'\n"
|
||
|
|
" to memory address `addr'\n"
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
U_BOOT_CMD(
|
||
|
|
usbboot, 3, 1, do_usbboot,
|
||
|
|
"usbboot - boot from USB device\n",
|
||
|
|
"loadAddr dev:part\n"
|
||
|
|
);
|
||
|
|
|
||
|
|
#else
|
||
|
|
U_BOOT_CMD(
|
||
|
|
usb, 5, 1, do_usb,
|
||
|
|
"usb - USB sub-system\n",
|
||
|
|
"reset - reset (rescan) USB controller\n"
|
||
|
|
"usb tree - show USB device tree\n"
|
||
|
|
"usb info [dev] - show available USB devices\n"
|
||
|
|
);
|
||
|
|
#endif
|
||
|
|
#endif
|