diff options
Diffstat (limited to 'cmd/usb.c')
| -rw-r--r-- | cmd/usb.c | 853 |
1 files changed, 853 insertions, 0 deletions
diff --git a/cmd/usb.c b/cmd/usb.c new file mode 100644 index 0000000..c7b642c --- /dev/null +++ b/cmd/usb.c @@ -0,0 +1,853 @@ +/* + * (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 <common.h> +#include <command.h> +#include <console.h> +#include <dm.h> +#include <memalign.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 +#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_parent_priv(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_parent_priv(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_parent_priv(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_subtree(struct usb_device *dev) +{ + char preamble[32]; + + memset(preamble, '\0', sizeof(preamble)); + usb_show_tree_graph(dev, &preamble[0]); +} + +void usb_show_tree(void) +{ +#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_parent_priv(dev); + usb_show_subtree(udev); + } + } +#else + struct usb_device *udev; + int i; + + for (i = 0; i < USB_MAX_DEVICE; i++) { + udev = usb_get_dev_index(i); + if (udev == NULL) + break; + if (udev->parent == NULL) + usb_show_subtree(udev); + } +#endif +} + +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 +# ifdef CONFIG_USB_KEYBOARD + drv_usb_kbd_init(); +# endif +#endif /* !CONFIG_DM_USB */ +#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_DM_USB +static void show_info(struct udevice *dev) +{ + struct udevice *child; + struct usb_device *udev; + + udev = dev_get_parent_priv(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"); + usb_show_tree(); + 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(stor_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(stor_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 */ |