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u-boot/common/cmd_usb.c
Bartlomiej Sieka e51aae3829 Prevent USB commands from working when USB is stopped.
2006-08-03 23:20:13 +02:00

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/*
* (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 <common.h>
#include <command.h>
#include <asm/byteorder.h>
#if (CONFIG_COMMANDS & CFG_CMD_USB)
#include <usb.h>
#ifdef CONFIG_USB_STORAGE
static int usb_stor_curr_dev=-1; /* current device */
#endif
/* some display routines (info command) */
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:
printf("See Interface");
break;
case USB_CLASS_HID:
printf("Human Interface, Subclass: ");
switch(subclass) {
case USB_SUB_HID_NONE:
printf("None");
break;
case USB_SUB_HID_BOOT:
printf("Boot ");
switch(proto) {
case USB_PROT_HID_NONE:
printf("None");
break;
case USB_PROT_HID_KEYBOARD:
printf("Keyboard");
break;
case USB_PROT_HID_MOUSE:
printf("Mouse");
break;
default:
printf("reserved");
}
break;
default:
printf("reserved");
}
break;
case USB_CLASS_MASS_STORAGE:
printf("Mass Storage, ");
switch(subclass) {
case US_SC_RBC:
printf("RBC ");
break;
case US_SC_8020:
printf("SFF-8020i (ATAPI)");
break;
case US_SC_QIC:
printf("QIC-157 (Tape)");
break;
case US_SC_UFI:
printf("UFI");
break;
case US_SC_8070:
printf("SFF-8070");
break;
case US_SC_SCSI:
printf("Transp. SCSI");
break;
default:
printf("reserved");
break;
}
printf(", ");
switch(proto) {
case US_PR_CB:
printf("Command/Bulk");
break;
case US_PR_CBI:
printf("Command/Bulk/Int");
break;
case US_PR_BULK:
printf("Bulk only");
break;
default:
printf("reserved");
}
break;
default:
printf("%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);
printf("String: \"%s\"",buffer);
}
}
void usb_display_desc(struct usb_device *dev)
{
if (dev->descriptor.bDescriptorType==USB_DT_DEVICE) {
printf("%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))
printf(" - %s %s %s\n",dev->mf,dev->prod,dev->serial);
if (dev->descriptor.bDeviceClass) {
printf(" - Class: ");
usb_display_class_sub(dev->descriptor.bDeviceClass,dev->descriptor.bDeviceSubClass,dev->descriptor.bDeviceProtocol);
printf("\n");
}
else {
printf(" - Class: (from Interface) %s\n",usb_get_class_desc(dev->config.if_desc[0].bInterfaceClass));
}
printf(" - PacketSize: %d Configurations: %d\n",dev->descriptor.bMaxPacketSize0,dev->descriptor.bNumConfigurations);
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);
}
}
void usb_display_conf_desc(struct usb_config_descriptor *config,struct usb_device *dev)
{
printf(" Configuration: %d\n",config->bConfigurationValue);
printf(" - 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) {
printf(" - ");
usb_display_string(dev,config->iConfiguration);
printf("\n");
}
}
void usb_display_if_desc(struct usb_interface_descriptor *ifdesc,struct usb_device *dev)
{
printf(" Interface: %d\n",ifdesc->bInterfaceNumber);
printf(" - Alternate Setting %d, Endpoints: %d\n",ifdesc->bAlternateSetting,ifdesc->bNumEndpoints);
printf(" - Class ");
usb_display_class_sub(ifdesc->bInterfaceClass,ifdesc->bInterfaceSubClass,ifdesc->bInterfaceProtocol);
printf("\n");
if (ifdesc->iInterface) {
printf(" - ");
usb_display_string(dev,ifdesc->iInterface);
printf("\n");
}
}
void usb_display_ep_desc(struct usb_endpoint_descriptor *epdesc)
{
printf(" - Endpoint %d %s ",epdesc->bEndpointAddress & 0xf,(epdesc->bEndpointAddress & 0x80) ? "In" : "Out");
switch((epdesc->bmAttributes & 0x03))
{
case 0: printf("Control"); break;
case 1: printf("Isochronous"); break;
case 2: printf("Bulk"); break;
case 3: printf("Interrupt"); break;
}
printf(" MaxPacket %d",epdesc->wMaxPacketSize);
if ((epdesc->bmAttributes & 0x03)==0x3)
printf(" Interval %dms",epdesc->bInterval);
printf("\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);
}
}
printf("\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);
printf(" %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 */
printf("\b+-");
/* correct last child */
if (last_child) {
pre[index-1]=' ';
}
} /* if not root hub */
else
printf(" ");
printf("%d ",dev->devnum);
pre[index++]=' ';
pre[index++]= has_child ? '|' : ' ';
pre[index]=0;
printf(" %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))
printf(" %s %s %s %s\n",pre,dev->mf,dev->prod,dev->serial);
printf(" %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
*/
#ifdef CONFIG_USB_STORAGE
int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *boot_device = NULL;
char *ep;
int dev, part=1, rcode;
ulong 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:
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
if (!boot_device) {
puts ("\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) {
printf ("\n** Device %d not available\n", dev);
return 1;
}
if (stor_dev->block_read==NULL) {
printf("storage device not initialized. Use usb scan\n");
return 1;
}
if (*ep) {
if (*ep != ':') {
puts ("\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;
printf("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)) {
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;
extern char usb_started;
#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 (!usb_started) {
printf("USB is stopped. Please issue 'usb start' first.\n");
return 1;
}
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
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