/* * (C) Copyright 2001 * Denis Peter, MPL AG Switzerland * * Adapted for U-Boot driver model * (C) Copyright 2015 Google, Inc * * Most of this source has been derived from the Linux USB * project. * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include #include #include #include #ifdef CONFIG_USB_STORAGE static int usb_stor_curr_dev = -1; /* current device */ #endif #if defined(CONFIG_USB_HOST_ETHER) && !defined(CONFIG_DM_ETH) static int __maybe_unused usb_ether_curr_dev = -1; /* current ethernet device */ #endif /* some display routines (info command) */ static 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 ""; } } static 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; } } static void usb_display_string(struct usb_device *dev, int index) { ALLOC_CACHE_ALIGN_BUFFER(char, buffer, 256); if (index != 0) { if (usb_string(dev, index, &buffer[0], 256) > 0) printf("String: \"%s\"", buffer); } } static 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); } } static 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->bMaxPower*2); if (config->iConfiguration) { printf(" - "); usb_display_string(dev, config->iConfiguration); printf("\n"); } } static 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"); } } static 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 */ static 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"); } /* * With driver model this isn't right since we can have multiple controllers * and the device numbering starts at 1 on each bus. * TODO(sjg@chromium.org): Add a way to specify the controller/bus. */ static struct usb_device *usb_find_device(int devnum) { #ifdef CONFIG_DM_USB struct usb_device *udev; struct udevice *hub; struct uclass *uc; int ret; /* Device addresses start at 1 */ devnum++; ret = uclass_get(UCLASS_USB_HUB, &uc); if (ret) return NULL; uclass_foreach_dev(hub, uc) { struct udevice *dev; if (!device_active(hub)) continue; udev = dev_get_parentdata(hub); if (udev->devnum == devnum) return udev; for (device_find_first_child(hub, &dev); dev; device_find_next_child(&dev)) { if (!device_active(hub)) continue; udev = dev_get_parentdata(dev); if (udev->devnum == devnum) return udev; } } #else struct usb_device *udev; int d; for (d = 0; d < USB_MAX_DEVICE; d++) { udev = usb_get_dev_index(d); if (udev == NULL) return NULL; if (udev->devnum == devnum) return udev; } #endif return NULL; } static inline char *portspeed(int speed) { char *speed_str; switch (speed) { case USB_SPEED_SUPER: speed_str = "5 Gb/s"; break; case USB_SPEED_HIGH: speed_str = "480 Mb/s"; break; case USB_SPEED_LOW: speed_str = "1.5 Mb/s"; break; default: speed_str = "12 Mb/s"; break; } return speed_str; } /* shows the device tree recursively */ static void usb_show_tree_graph(struct usb_device *dev, char *pre) { int index; int has_child, last_child; index = strlen(pre); printf(" %s", pre); #ifdef CONFIG_DM_USB has_child = device_has_active_children(dev->dev); #else /* check if the device has connected children */ int i; has_child = 0; for (i = 0; i < dev->maxchild; i++) { if (dev->children[i] != NULL) has_child = 1; } #endif /* check if we are the last one */ #ifdef CONFIG_DM_USB /* Not the root of the usb tree? */ if (device_get_uclass_id(dev->dev->parent) != UCLASS_USB) { last_child = device_is_last_sibling(dev->dev); #else if (dev->parent != NULL) { /* not root? */ last_child = 1; 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 */ #endif printf("\b+-"); /* correct last child */ if (last_child && index) 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); #ifdef CONFIG_DM_USB struct udevice *child; for (device_find_first_child(dev->dev, &child); child; device_find_next_child(&child)) { struct usb_device *udev; if (!device_active(child)) continue; udev = dev_get_parentdata(child); /* Ignore emulators, we only want real devices */ if (device_get_uclass_id(child) != UCLASS_USB_EMUL) { usb_show_tree_graph(udev, pre); pre[index] = 0; } } #else 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; } } } #endif } /* main routine for the tree command */ static void usb_show_tree(struct usb_device *dev) { char preamble[32]; memset(preamble, '\0', sizeof(preamble)); usb_show_tree_graph(dev, &preamble[0]); } static int usb_test(struct usb_device *dev, int port, char* arg) { int mode; if (port > dev->maxchild) { printf("Device is no hub or does not have %d ports.\n", port); return 1; } switch (arg[0]) { case 'J': case 'j': printf("Setting Test_J mode"); mode = USB_TEST_MODE_J; break; case 'K': case 'k': printf("Setting Test_K mode"); mode = USB_TEST_MODE_K; break; case 'S': case 's': printf("Setting Test_SE0_NAK mode"); mode = USB_TEST_MODE_SE0_NAK; break; case 'P': case 'p': printf("Setting Test_Packet mode"); mode = USB_TEST_MODE_PACKET; break; case 'F': case 'f': printf("Setting Test_Force_Enable mode"); mode = USB_TEST_MODE_FORCE_ENABLE; break; default: printf("Unrecognized test mode: %s\nAvailable modes: " "J, K, S[E0_NAK], P[acket], F[orce_Enable]\n", arg); return 1; } if (port) printf(" on downstream facing port %d...\n", port); else printf(" on upstream facing port...\n"); if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_FEATURE, port ? USB_RT_PORT : USB_RECIP_DEVICE, port ? USB_PORT_FEAT_TEST : USB_FEAT_TEST, (mode << 8) | port, NULL, 0, USB_CNTL_TIMEOUT) == -1) { printf("Error during SET_FEATURE.\n"); return 1; } else { printf("Test mode successfully set. Use 'usb start' " "to return to normal operation.\n"); return 0; } } /****************************************************************************** * usb boot command intepreter. Derived from diskboot */ #ifdef CONFIG_USB_STORAGE static int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { return common_diskboot(cmdtp, "usb", argc, argv); } #endif /* CONFIG_USB_STORAGE */ static int do_usb_stop_keyboard(int force) { #ifdef CONFIG_USB_KEYBOARD if (usb_kbd_deregister(force) != 0) { printf("USB not stopped: usbkbd still using USB\n"); return 1; } #endif return 0; } static void do_usb_start(void) { bootstage_mark_name(BOOTSTAGE_ID_USB_START, "usb_start"); if (usb_init() < 0) return; /* Driver model will probe the devices as they are found */ #ifndef CONFIG_DM_USB #ifdef CONFIG_USB_STORAGE /* try to recognize storage devices immediately */ usb_stor_curr_dev = usb_stor_scan(1); #endif #endif #ifdef CONFIG_USB_HOST_ETHER # ifdef CONFIG_DM_ETH # ifndef CONFIG_DM_USB # error "You must use CONFIG_DM_USB if you want to use CONFIG_USB_HOST_ETHER with CONFIG_DM_ETH" # endif # else /* try to recognize ethernet devices immediately */ usb_ether_curr_dev = usb_host_eth_scan(1); # endif #endif #ifdef CONFIG_USB_KEYBOARD drv_usb_kbd_init(); #endif } #ifdef CONFIG_DM_USB static void show_info(struct udevice *dev) { struct udevice *child; struct usb_device *udev; udev = dev_get_parentdata(dev); usb_display_desc(udev); usb_display_config(udev); for (device_find_first_child(dev, &child); child; device_find_next_child(&child)) { if (device_active(child)) show_info(child); } } static int usb_device_info(void) { struct udevice *bus; for (uclass_first_device(UCLASS_USB, &bus); bus; uclass_next_device(&bus)) { struct udevice *hub; device_find_first_child(bus, &hub); if (device_get_uclass_id(hub) == UCLASS_USB_HUB && device_active(hub)) { show_info(hub); } } return 0; } #endif /****************************************************************************** * usb command intepreter */ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { struct usb_device *udev = NULL; int i; 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], "start", 5) == 0) { if (usb_started) return 0; /* Already started */ printf("starting USB...\n"); do_usb_start(); return 0; } if (strncmp(argv[1], "reset", 5) == 0) { printf("resetting USB...\n"); if (do_usb_stop_keyboard(1) != 0) return 1; usb_stop(); do_usb_start(); return 0; } if (strncmp(argv[1], "stop", 4) == 0) { if (argc != 2) console_assign(stdin, "serial"); if (do_usb_stop_keyboard(0) != 0) return 1; 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) { puts("USB device tree:\n"); #ifdef CONFIG_DM_USB struct udevice *bus; for (uclass_first_device(UCLASS_USB, &bus); bus; uclass_next_device(&bus)) { struct usb_device *udev; struct udevice *dev; device_find_first_child(bus, &dev); if (dev && device_active(dev)) { udev = dev_get_parentdata(dev); usb_show_tree(udev); } } #else for (i = 0; i < USB_MAX_DEVICE; i++) { udev = usb_get_dev_index(i); if (udev == NULL) break; if (udev->parent == NULL) usb_show_tree(udev); } #endif return 0; } if (strncmp(argv[1], "inf", 3) == 0) { if (argc == 2) { #ifdef CONFIG_DM_USB usb_device_info(); #else int d; for (d = 0; d < USB_MAX_DEVICE; d++) { udev = usb_get_dev_index(d); if (udev == NULL) break; usb_display_desc(udev); usb_display_config(udev); } #endif return 0; } else { /* * With driver model this isn't right since we can * have multiple controllers and the device numbering * starts at 1 on each bus. */ i = simple_strtoul(argv[2], NULL, 10); printf("config for device %d\n", i); udev = usb_find_device(i); if (udev == NULL) { printf("*** No device available ***\n"); return 0; } else { usb_display_desc(udev); usb_display_config(udev); } } return 0; } if (strncmp(argv[1], "test", 4) == 0) { if (argc < 5) return CMD_RET_USAGE; i = simple_strtoul(argv[2], NULL, 10); udev = usb_find_device(i); if (udev == NULL) { printf("Device %d does not exist.\n", i); return 1; } i = simple_strtoul(argv[3], NULL, 10); return usb_test(udev, 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 */