mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
b507226405
Currently we've this magic in include/config_distro_bootcmd.h to avoid scanning the usb bus multiple times. And it does not work when also using an usb keyboard because then the preboot command has already scanned the bus, so we're still scanning it twice. This commit makes "usb start" only start usb if it is no already started, allowing us to remove all the magic for it from include/config_distro_bootcmd.h and just call it unconditionally. This also causes "usb start" and "usb reset" to actually do what their different names suggest, rather then both of them doing exactly the same. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
696 lines
17 KiB
C
696 lines
17 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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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#include <asm/unaligned.h>
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#include <part.h>
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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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#ifdef CONFIG_USB_HOST_ETHER
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static int usb_ether_curr_dev = -1; /* current ethernet device */
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#endif
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/* some display routines (info command) */
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static 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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static void usb_display_class_sub(unsigned char dclass, unsigned char subclass,
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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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break;
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}
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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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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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break;
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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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break;
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}
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}
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static void usb_display_string(struct usb_device *dev, int index)
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{
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ALLOC_CACHE_ALIGN_BUFFER(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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static 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,
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usb_get_class_desc(dev->config.if_desc[0].desc.bInterfaceClass),
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(dev->descriptor.bcdUSB>>8) & 0xff,
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dev->descriptor.bcdUSB & 0xff);
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if (strlen(dev->mf) || strlen(dev->prod) ||
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strlen(dev->serial))
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printf(" - %s %s %s\n", dev->mf, dev->prod,
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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,
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dev->descriptor.bDeviceSubClass,
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dev->descriptor.bDeviceProtocol);
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printf("\n");
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} else {
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printf(" - Class: (from Interface) %s\n",
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usb_get_class_desc(
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dev->config.if_desc[0].desc.bInterfaceClass));
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}
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printf(" - PacketSize: %d Configurations: %d\n",
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dev->descriptor.bMaxPacketSize0,
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dev->descriptor.bNumConfigurations);
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printf(" - Vendor: 0x%04x Product 0x%04x Version %d.%d\n",
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dev->descriptor.idVendor, dev->descriptor.idProduct,
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(dev->descriptor.bcdDevice>>8) & 0xff,
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dev->descriptor.bcdDevice & 0xff);
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}
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}
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static void usb_display_conf_desc(struct usb_config_descriptor *config,
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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,
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(config->bmAttributes & 0x40) ? "Self Powered " : "Bus Powered ",
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(config->bmAttributes & 0x20) ? "Remote Wakeup " : "",
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config->bMaxPower*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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static void usb_display_if_desc(struct usb_interface_descriptor *ifdesc,
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struct usb_device *dev)
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{
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printf(" Interface: %d\n", ifdesc->bInterfaceNumber);
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printf(" - Alternate Setting %d, Endpoints: %d\n",
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ifdesc->bAlternateSetting, ifdesc->bNumEndpoints);
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printf(" - Class ");
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usb_display_class_sub(ifdesc->bInterfaceClass,
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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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static 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,
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(epdesc->bEndpointAddress & 0x80) ? "In" : "Out");
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switch ((epdesc->bmAttributes & 0x03)) {
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case 0:
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printf("Control");
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break;
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case 1:
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printf("Isochronous");
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break;
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case 2:
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printf("Bulk");
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break;
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case 3:
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printf("Interrupt");
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break;
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}
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printf(" MaxPacket %d", get_unaligned(&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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static void usb_display_config(struct usb_device *dev)
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{
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struct usb_config *config;
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struct usb_interface *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->desc, 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->desc, 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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static struct usb_device *usb_find_device(int devnum)
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{
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struct usb_device *dev;
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int d;
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for (d = 0; d < USB_MAX_DEVICE; d++) {
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dev = usb_get_dev_index(d);
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if (dev == NULL)
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return NULL;
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if (dev->devnum == devnum)
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return dev;
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}
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return NULL;
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}
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static inline char *portspeed(int speed)
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{
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char *speed_str;
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switch (speed) {
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case USB_SPEED_SUPER:
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speed_str = "5 Gb/s";
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break;
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case USB_SPEED_HIGH:
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speed_str = "480 Mb/s";
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break;
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case USB_SPEED_LOW:
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speed_str = "1.5 Mb/s";
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break;
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default:
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speed_str = "12 Mb/s";
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break;
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}
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return speed_str;
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}
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/* shows the device tree recursively */
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static 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;
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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
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* little sister
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*/
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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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} /* 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(
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dev->config.if_desc[0].desc.bInterfaceClass),
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portspeed(dev->speed),
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dev->config.desc.bMaxPower * 2);
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if (strlen(dev->mf) || strlen(dev->prod) || 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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static 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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static int usb_test(struct usb_device *dev, int port, char* arg)
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{
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int mode;
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if (port > dev->maxchild) {
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printf("Device is no hub or does not have %d ports.\n", port);
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return 1;
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}
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switch (arg[0]) {
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case 'J':
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case 'j':
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printf("Setting Test_J mode");
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mode = USB_TEST_MODE_J;
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break;
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case 'K':
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case 'k':
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printf("Setting Test_K mode");
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mode = USB_TEST_MODE_K;
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break;
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case 'S':
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case 's':
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printf("Setting Test_SE0_NAK mode");
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mode = USB_TEST_MODE_SE0_NAK;
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break;
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case 'P':
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case 'p':
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printf("Setting Test_Packet mode");
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mode = USB_TEST_MODE_PACKET;
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break;
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case 'F':
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case 'f':
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printf("Setting Test_Force_Enable mode");
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mode = USB_TEST_MODE_FORCE_ENABLE;
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break;
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default:
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printf("Unrecognized test mode: %s\nAvailable modes: "
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"J, K, S[E0_NAK], P[acket], F[orce_Enable]\n", arg);
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return 1;
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}
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if (port)
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printf(" on downstream facing port %d...\n", port);
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else
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printf(" on upstream facing port...\n");
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if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_FEATURE,
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port ? USB_RT_PORT : USB_RECIP_DEVICE,
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port ? USB_PORT_FEAT_TEST : USB_FEAT_TEST,
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(mode << 8) | port,
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NULL, 0, USB_CNTL_TIMEOUT) == -1) {
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printf("Error during SET_FEATURE.\n");
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return 1;
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} else {
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printf("Test mode successfully set. Use 'usb start' "
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"to return to normal operation.\n");
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return 0;
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}
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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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static int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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return common_diskboot(cmdtp, "usb", argc, argv);
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}
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#endif /* CONFIG_USB_STORAGE */
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static int do_usb_stop_keyboard(int force)
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{
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#ifdef CONFIG_USB_KEYBOARD
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if (usb_kbd_deregister(force) != 0) {
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printf("USB not stopped: usbkbd still using USB\n");
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return 1;
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}
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#endif
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return 0;
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}
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static void do_usb_start(void)
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{
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bootstage_mark_name(BOOTSTAGE_ID_USB_START, "usb_start");
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if (usb_init() < 0)
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return;
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#ifdef CONFIG_USB_STORAGE
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/* try to recognize storage devices immediately */
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usb_stor_curr_dev = usb_stor_scan(1);
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#endif
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#ifdef CONFIG_USB_HOST_ETHER
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/* try to recognize ethernet devices immediately */
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usb_ether_curr_dev = usb_host_eth_scan(1);
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#endif
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#ifdef CONFIG_USB_KEYBOARD
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drv_usb_kbd_init();
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#endif
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}
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/******************************************************************************
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* usb command intepreter
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*/
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static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int i;
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struct usb_device *dev = NULL;
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extern char usb_started;
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#ifdef CONFIG_USB_STORAGE
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block_dev_desc_t *stor_dev;
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#endif
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if (argc < 2)
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return CMD_RET_USAGE;
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if (strncmp(argv[1], "start", 5) == 0) {
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if (usb_started)
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return 0; /* Already started */
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printf("starting USB...\n");
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do_usb_start();
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return 0;
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}
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if (strncmp(argv[1], "reset", 5) == 0) {
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printf("resetting USB...\n");
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if (do_usb_stop_keyboard(1) != 0)
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return 1;
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usb_stop();
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do_usb_start();
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return 0;
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}
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if (strncmp(argv[1], "stop", 4) == 0) {
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if (argc != 2)
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console_assign(stdin, "serial");
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if (do_usb_stop_keyboard(0) != 0)
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return 1;
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printf("stopping USB..\n");
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usb_stop();
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return 0;
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}
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if (!usb_started) {
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printf("USB is stopped. Please issue 'usb start' first.\n");
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return 1;
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}
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if (strncmp(argv[1], "tree", 4) == 0) {
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puts("USB device tree:\n");
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for (i = 0; i < USB_MAX_DEVICE; i++) {
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dev = usb_get_dev_index(i);
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if (dev == NULL)
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break;
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if (dev->parent == NULL)
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usb_show_tree(dev);
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}
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return 0;
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}
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if (strncmp(argv[1], "inf", 3) == 0) {
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int d;
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if (argc == 2) {
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for (d = 0; d < USB_MAX_DEVICE; d++) {
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dev = usb_get_dev_index(d);
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if (dev == NULL)
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break;
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usb_display_desc(dev);
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usb_display_config(dev);
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}
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return 0;
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} else {
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i = simple_strtoul(argv[2], NULL, 10);
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printf("config for device %d\n", i);
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dev = usb_find_device(i);
|
|
if (dev == NULL) {
|
|
printf("*** No device available ***\n");
|
|
return 0;
|
|
} else {
|
|
usb_display_desc(dev);
|
|
usb_display_config(dev);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
if (strncmp(argv[1], "test", 4) == 0) {
|
|
if (argc < 5)
|
|
return CMD_RET_USAGE;
|
|
i = simple_strtoul(argv[2], NULL, 10);
|
|
dev = usb_find_device(i);
|
|
if (dev == NULL) {
|
|
printf("Device %d does not exist.\n", i);
|
|
return 1;
|
|
}
|
|
i = simple_strtoul(argv[3], NULL, 10);
|
|
return usb_test(dev, i, argv[4]);
|
|
}
|
|
#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;
|
|
}
|
|
|
|
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 test [dev] [port] [mode] - set USB 2.0 test mode\n"
|
|
" (specify port 0 to indicate the device's upstream port)\n"
|
|
" Available modes: J, K, S[E0_NAK], P[acket], F[orce_Enable]\n"
|
|
#ifdef CONFIG_USB_STORAGE
|
|
"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'"
|
|
#endif /* CONFIG_USB_STORAGE */
|
|
);
|
|
|
|
|
|
#ifdef CONFIG_USB_STORAGE
|
|
U_BOOT_CMD(
|
|
usbboot, 3, 1, do_usbboot,
|
|
"boot from USB device",
|
|
"loadAddr dev:part"
|
|
);
|
|
#endif /* CONFIG_USB_STORAGE */
|