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u-boot/common/cmd_usb.c
Simon Glass 4c12eeb8b5 Convert cmd_usage() calls in common to use a return value 
Change all files in common/ to use CMD_RET_USAGE instead of calling
cmd_usage() directly. I'm not completely sure about this patch since
the code since impact is small (100 byte or so on ARM) and it might
need splitting into smaller patches. But for now here it is.

Signed-off-by: Simon Glass <sjg@chromium.org>
2012-03-06 21:09:46 +01:00

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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>
#include <asm/unaligned.h>
#include <part.h>
#include <usb.h>
#ifdef CONFIG_USB_STORAGE
static int usb_stor_curr_dev = -1; /* current device */
#endif
#ifdef CONFIG_USB_HOST_ETHER
static int usb_ether_curr_dev = -1; /* current ethernet 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;
}
break;
default:
printf("reserved");
break;
}
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;
}
break;
default:
printf("%s", usb_get_class_desc(dclass));
break;
}
}
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].desc.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].desc.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_configuration_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->bMaxPower*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", get_unaligned(&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 *config;
struct usb_interface *ifdesc;
struct usb_endpoint_descriptor *epdesc;
int i, ii;
config = &dev->config;
usb_display_conf_desc(&config->desc, dev);
for (i = 0; i < config->no_of_if; i++) {
ifdesc = &config->if_desc[i];
usb_display_if_desc(&ifdesc->desc, dev);
for (ii = 0; ii < ifdesc->no_of_ep; ii++) {
epdesc = &ifdesc->ep_desc[ii];
usb_display_ep_desc(epdesc);
}
}
printf("\n");
}
static inline char *portspeed(int speed)
{
if (speed == USB_SPEED_HIGH)
return "480 Mb/s";
else if (speed == USB_SPEED_LOW)
return "1.5 Mb/s";
else
return "12 Mb/s";
}
/* shows the device tree recursively */
void usb_show_tree_graph(struct usb_device *dev, char *pre)
{
int i, index;
int has_child, last_child;
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
*/
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].desc.bInterfaceClass),
portspeed(dev->speed),
dev->config.desc.bMaxPower * 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 * const argv[])
{
char *boot_device = NULL;
char *ep;
int dev, part = 1;
ulong addr, cnt;
disk_partition_t info;
image_header_t *hdr;
block_dev_desc_t *stor_dev;
#if defined(CONFIG_FIT)
const void *fit_hdr = NULL;
#endif
switch (argc) {
case 1:
addr = CONFIG_SYS_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:
return CMD_RET_USAGE;
}
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 == NULL || 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;
}
switch (genimg_get_format((void *)addr)) {
case IMAGE_FORMAT_LEGACY:
hdr = (image_header_t *)addr;
if (!image_check_hcrc(hdr)) {
puts("\n** Bad Header Checksum **\n");
return 1;
}
image_print_contents(hdr);
cnt = image_get_image_size(hdr);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
fit_hdr = (const void *)addr;
puts("Fit image detected...\n");
cnt = fit_get_size(fit_hdr);
break;
#endif
default:
puts("** Unknown image type\n");
return 1;
}
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;
}
#if defined(CONFIG_FIT)
/* This cannot be done earlier, we need complete FIT image in RAM
* first
*/
if (genimg_get_format((void *)addr) == IMAGE_FORMAT_FIT) {
if (!fit_check_format(fit_hdr)) {
puts("** Bad FIT image format\n");
return 1;
}
fit_print_contents(fit_hdr);
}
#endif
/* Loading ok, update default load address */
load_addr = addr;
flush_cache(addr, (cnt+1)*info.blksz);
return bootm_maybe_autostart(cmdtp, argv[0]);
}
#endif /* CONFIG_USB_STORAGE */
/******************************************************************************
* usb command intepreter
*/
int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int i;
struct usb_device *dev = NULL;
extern char usb_started;
#ifdef CONFIG_USB_STORAGE
block_dev_desc_t *stor_dev;
#endif
if (argc < 2)
return CMD_RET_USAGE;
if ((strncmp(argv[1], "reset", 5) == 0) ||
(strncmp(argv[1], "start", 5) == 0)) {
usb_stop();
printf("(Re)start USB...\n");
i = usb_init();
if (i >= 0) {
#ifdef CONFIG_USB_STORAGE
/* try to recognize storage devices immediately */
usb_stor_curr_dev = usb_stor_scan(1);
#endif
#ifdef CONFIG_USB_HOST_ETHER
/* try to recognize ethernet devices immediately */
usb_ether_curr_dev = usb_host_eth_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 available ***\n");
return 0;
} else {
usb_display_desc(dev);
usb_display_config(dev);
}
}
return 0;
}
#ifdef CONFIG_USB_STORAGE
if (strncmp(argv[1], "stor", 4) == 0)
return usb_stor_info();
if (strncmp(argv[1], "part", 4) == 0) {
int devno, ok = 0;
if (argc == 2) {
for (devno = 0; ; ++devno) {
stor_dev = usb_stor_get_dev(devno);
if (stor_dev == NULL)
break;
if (stor_dev->type != DEV_TYPE_UNKNOWN) {
ok++;
if (devno)
printf("\n");
debug("print_part of %x\n", devno);
print_part(stor_dev);
}
}
} else {
devno = simple_strtoul(argv[2], NULL, 16);
stor_dev = usb_stor_get_dev(devno);
if (stor_dev != NULL &&
stor_dev->type != DEV_TYPE_UNKNOWN) {
ok++;
debug("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 (strcmp(argv[1], "write") == 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 write: 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_write(usb_stor_curr_dev, blk, cnt,
(ulong *)addr);
printf("%ld blocks write: %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);
stor_dev = usb_stor_get_dev(dev);
if (stor_dev == NULL) {
printf("unknown device\n");
return 1;
}
printf("\n Device %d: ", 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 */
return CMD_RET_USAGE;
}
#ifdef CONFIG_USB_STORAGE
U_BOOT_CMD(
usb, 5, 1, do_usb,
"USB sub-system",
"start - start (scan) USB controller\n"
"usb 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"
"usb write addr blk# cnt - write `cnt' blocks starting at block `blk#'\n"
" from memory address `addr'"
);
U_BOOT_CMD(
usbboot, 3, 1, do_usbboot,
"boot from USB device",
"loadAddr dev:part"
);
#else
U_BOOT_CMD(
usb, 5, 1, do_usb,
"USB sub-system",
"start - start (scan) USB controller\n"
"usb reset - reset (rescan) USB controller\n"
"usb tree - show USB device tree\n"
"usb info [dev] - show available USB devices"
);
#endif
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