cmd_usb.c

基于s3c2440的U盘读写程序

/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland
 *
 * Most of this source has been derived from the Linux USB
 * project.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */
#include "usb.h"
#include "s3c2410.h"
static int usb_stor_curr_dev=-1; /* current device */
/* some display routines (info command) */
unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base)
{
    unsigned long result = 0,value;
    if (*cp == '0') 
    {
        cp++;
        if ((*cp == 'x') && isxdigit(cp[1])) 
        {
            base = 16;
            cp++;
        }
        if (!base) 
        {
            base = 8;
        }
    }
    if (!base) 
    {
        base = 10;
    }
    while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp)
    ? toupper(*cp) : *cp)-'A'+10) < base) 
    {
        result = result*base + value;
        cp++;
    }
    if (endp)
    *endp = (char *)cp;
    return result;
}


char * usb_get_class_desc(unsigned char dclass)
{
    switch(dclass) 
    {
    case USB_CLASS_PER_INTERFACE:
        return("See Interface");
    case USB_CLASS_AUDIO:
        return("Audio");
    case USB_CLASS_COMM:
        return("Communication");
    case USB_CLASS_HID:
        return("Human Interface");
    case USB_CLASS_PRINTER:
        return("Printer");
    case USB_CLASS_MASS_STORAGE:
        return("Mass Storage");
    case USB_CLASS_HUB:
        return("Hub");
    case USB_CLASS_DATA:
        return("CDC Data");
    case USB_CLASS_VENDOR_SPEC:
        return("Vendor specific");
    default :
        return("");
    }
}


void usb_display_class_sub(unsigned char dclass,unsigned char subclass,unsigned char proto)
{
    switch(dclass) 
    {
    case USB_CLASS_PER_INTERFACE:
        s_UartPrint("See Interface");
        break;
    case USB_CLASS_HID:
        s_UartPrint("Human Interface, Subclass: ");
        switch(subclass) 
        {
        case USB_SUB_HID_NONE:
            s_UartPrint("None");
            break;
        case USB_SUB_HID_BOOT:
            s_UartPrint("Boot ");
            switch(proto) 
            {
            case USB_PROT_HID_NONE:
                s_UartPrint("None");
                break;
            case USB_PROT_HID_KEYBOARD:
                s_UartPrint("Keyboard");
                break;
            case USB_PROT_HID_MOUSE:
                s_UartPrint("Mouse");
                break;
            default:
                s_UartPrint("reserved");
            }
            break;
        default:
            s_UartPrint("reserved");
        }
        break;
    case USB_CLASS_MASS_STORAGE:
        s_UartPrint("Mass Storage, ");
        switch(subclass) 
        {
        case US_SC_RBC:
            s_UartPrint("RBC ");
            break;
        case US_SC_8020:
            s_UartPrint("SFF-8020i (ATAPI)");
            break;
        case US_SC_QIC:
            s_UartPrint("QIC-157 (Tape)");
            break;
        case US_SC_UFI:
            s_UartPrint("UFI");
            break;
        case US_SC_8070:
            s_UartPrint("SFF-8070");
            break;
        case US_SC_SCSI:
            s_UartPrint("Transp. SCSI");
            break;
        default:
            s_UartPrint("reserved");
            break;
        }
        s_UartPrint(", ");
        switch(proto) 
        {
        case US_PR_CB:
            s_UartPrint("Command/Bulk");
            break;
        case US_PR_CBI:
            s_UartPrint("Command/Bulk/Int");
            break;
        case US_PR_BULK:
            s_UartPrint("Bulk only");
            break;
        default:
            s_UartPrint("reserved");
        }
        break;
    default:
        s_UartPrint("%s",usb_get_class_desc(dclass));
    }
}


void usb_display_string(struct usb_device *dev,int index)
{
    char buffer[256];
    if (index!=0) 
    {
        if (usb_string(dev,index,&buffer[0],256)>0);
        s_UartPrint("String: \"%s\"",buffer);
    }
}


void usb_display_desc(struct usb_device *dev)
{
    if (dev->descriptor.bDescriptorType==USB_DT_DEVICE) 
    {
        s_UartPrint("%d: %s,  USB Revision %x.%x\n",dev->devnum,usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
        (dev->descriptor.bcdUSB>>8) & 0xff,dev->descriptor.bcdUSB & 0xff);
        if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
        s_UartPrint(" - %s %s %s\n",dev->mf,dev->prod,dev->serial);
        if (dev->descriptor.bDeviceClass) 
        {
            s_UartPrint(" - Class: ");
            usb_display_class_sub(dev->descriptor.bDeviceClass,dev->descriptor.bDeviceSubClass,dev->descriptor.bDeviceProtocol);
            s_UartPrint("\n");
        }
        else 
        {
            s_UartPrint(" - Class: (from Interface) %s\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass));
        }
        s_UartPrint(" - PacketSize: %d  Configurations: %d\n",dev->descriptor.bMaxPacketSize0,dev->descriptor.bNumConfigurations);
        s_UartPrint(" - 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);
    }
}


void usb_display_conf_desc(struct usb_config_descriptor *config,struct usb_device *dev)
{
    s_UartPrint("   Configuration: %d\n",config->bConfigurationValue);
    s_UartPrint("   - Interfaces: %d %s%s%dmA\n",config->bNumInterfaces,(config->bmAttributes & 0x40) ? "Self Powered " : "Bus Powered ",
    (config->bmAttributes & 0x20) ? "Remote Wakeup " : "",config->MaxPower*2);
    if (config->iConfiguration) 
    {
        s_UartPrint("   - ");
        usb_display_string(dev,config->iConfiguration);
        s_UartPrint("\n");
    }
}


void usb_display_if_desc(struct usb_interface_descriptor *ifdesc,struct usb_device *dev)
{
    s_UartPrint("     Interface: %d\n",ifdesc->bInterfaceNumber);
    s_UartPrint("     - Alternate Settings %d, Endpoints: %d\n",ifdesc->bAlternateSetting,ifdesc->bNumEndpoints);
    s_UartPrint("     - Class ");
    usb_display_class_sub(ifdesc->bInterfaceClass,ifdesc->bInterfaceSubClass,ifdesc->bInterfaceProtocol);
    s_UartPrint("\n");
    if (ifdesc->iInterface) 
    {
        s_UartPrint("     - ");
        usb_display_string(dev,ifdesc->iInterface);
        s_UartPrint("\n");
    }
}


void usb_display_ep_desc(struct usb_endpoint_descriptor *epdesc)
{
    s_UartPrint("     - Endpoint %d %s ",epdesc->bEndpointAddress & 0xf,(epdesc->bEndpointAddress & 0x80) ? "In" : "Out");
    switch((epdesc->bmAttributes & 0x03))
    {
        case 0: s_UartPrint("Control"); break;
        case 1: s_UartPrint("Isochronous"); break;
        case 2: s_UartPrint("Bulk"); break;
        case 3: s_UartPrint("Interrupt"); break;
    }
    s_UartPrint(" MaxPacket %d",epdesc->wMaxPacketSize);
    if ((epdesc->bmAttributes & 0x03)==0x3)
    s_UartPrint(" Interval %dms",epdesc->bInterval);
    s_UartPrint("\n");
}


/* main routine to diasplay the configs, interfaces and endpoints */
void usb_display_config(struct usb_device *dev)
{
    struct usb_config_descriptor *config;
    struct usb_interface_descriptor *ifdesc;
    struct usb_endpoint_descriptor *epdesc;
    int i,ii;
    config= &dev->config;
    usb_display_conf_desc(config,dev);
    for(i=0;i<config->no_of_if;i++) 
    {
        ifdesc= &config->if_desc[i];
        usb_display_if_desc(ifdesc,dev);
        for(ii=0;ii<ifdesc->no_of_ep;ii++) 
        {
            epdesc= &ifdesc->ep_desc[ii];
            usb_display_ep_desc(epdesc);
        }
    }
    s_UartPrint("\n");
}


/* shows the device tree recursively */
void usb_show_tree_graph(struct usb_device *dev,char *pre)
{
    int i,index;
    int has_child,last_child,port;
    index=strlen(pre);
    s_UartPrint(" %s",pre);
    /* check if the device has connected children */
    has_child=0;
    for(i=0;i<dev->maxchild;i++) 
    {
        if (dev->children[i]!=NULL)
        has_child=1;
    }
    /* check if we are the last one */
    last_child=1;
    if (dev->parent!=NULL) 
    {
        for(i=0;i<dev->parent->maxchild;i++) 
        {
            /* search for children */
            if (dev->parent->children[i]==dev) 
            {
                /* found our pointer, see if we have a little sister */
                port=i;
                while(i++<dev->parent->maxchild) 
                {
                    if (dev->parent->children[i]!=NULL) 
                    {
                        /* found a sister */
                        last_child=0;
                        break;
                    } 
                    /* if */
                } 
                /* while */
            } 
            /* device found */
        } 
        /* for all children of the parent */
        s_UartPrint("\b+-");
        /* correct last child */
        if (last_child) 
        {
            pre[index-1]=' ';
        }
    } 
    /* if not root hub */
    else
    s_UartPrint(" ");
    s_UartPrint("%d ",dev->devnum);
    pre[index++]=' ';
    pre[index++]= has_child ? '|' : ' ';
    pre[index]=0;
    s_UartPrint(" %s (%s, %dmA)\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass),
    dev->slow ? "1.5MBit/s" : "12MBit/s",dev->config.MaxPower * 2);
    if (strlen(dev->mf) ||
    strlen(dev->prod) ||
    strlen(dev->serial))
    s_UartPrint(" %s  %s %s %s\n",pre,dev->mf,dev->prod,dev->serial);
    s_UartPrint(" %s\n",pre);
    if (dev->maxchild>0) 
    {
        for(i=0;i<dev->maxchild;i++) 
        {
            if (dev->children[i]!=NULL) 
            {
                usb_show_tree_graph(dev->children[i],pre);
                pre[index]=0;
            }
        }
    }
}


/* main routine for the tree command */
void usb_show_tree(struct usb_device *dev)
{
    char preamble[32];
    memset(preamble,0,32);
    usb_show_tree_graph(dev,&preamble[0]);
}


/******************************************************************************
 * usb boot command intepreter. Derived from diskboot
 */
/*
int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	char *boot_device = NULL;
	char *ep;
	int dev, part=1, rcode;
	unsigned long addr, cnt, checksum;
	disk_partition_t info;
	image_header_t *hdr;
	block_dev_desc_t *stor_dev;
	switch (argc) {
	case 1:
		addr = CFG_LOAD_ADDR;
		boot_device = getenv ("bootdevice");
		break;
	case 2:
		addr = simple_strtoul(argv[1], NULL, 16);
		boot_device = getenv ("bootdevice");
		break;
	case 3:
		addr = simple_strtoul(argv[1], NULL, 16);
		boot_device = argv[2];
		break;
	default:
		s_UartPrint ("Usage:\n%s\n", cmdtp->usage);
		return 1;
	}
	if (!boot_device) {
		s_UartPrint("\n** No boot device **\n");
		return 1;
	}
	dev = simple_strtoul(boot_device, &ep, 16);
	stor_dev=usb_stor_get_dev(dev);
	if (stor_dev->type == DEV_TYPE_UNKNOWN) {
		s_UartPrint("\n** Device %d not available\n", dev);
		return 1;
	}
	if (stor_dev->block_read==NULL) {
		s_UartPrint("storage device not initialized. Use usb scan\n");
		return 1;
	}
	if (*ep) {
		if (*ep != ':') {
			s_UartPrint ("\n** Invalid boot device, use `dev[:part]' **\n");
			return 1;
		}
		part = simple_strtoul(++ep, NULL, 16);
	}
	if (get_partition_info (stor_dev, part, &info)) {
		// try to boot raw ....//
		strncpy((char *)&info.type[0], BOOT_PART_TYPE, sizeof(BOOT_PART_TYPE));
		strncpy((char *)&info.name[0], "Raw", 4);
		info.start=0;
		info.blksz=0x200;
		info.size=2880;
		s_UartPrint("error reading partinfo...try to boot raw\n");
	}
	if ((strncmp((char *)info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
	    (strncmp((char *)info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
		s_UartPrint ("\n** Invalid partition type \"%.32s\""
			" (expect \"" BOOT_PART_TYPE "\")\n",
			info.type);
		return 1;
	}
	s_UartPrint("\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) {
		s_UartPrint("** Read error on %d:%d\n", dev, part);
		return 1;
	}
	hdr = (image_header_t *)addr;