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path: root/drivers/usb/gadget/f_fastboot.c
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Diffstat (limited to 'drivers/usb/gadget/f_fastboot.c')
-rw-r--r--drivers/usb/gadget/f_fastboot.c1329
1 files changed, 0 insertions, 1329 deletions
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
deleted file mode 100644
index 82a202cc21..0000000000
--- a/drivers/usb/gadget/f_fastboot.c
+++ /dev/null
@@ -1,1329 +0,0 @@
-/*
- * (C) Copyright 2008 - 2009
- * Windriver, <www.windriver.com>
- * Tom Rix <Tom.Rix@windriver.com>
- *
- * Copyright 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * Copyright 2014 Linaro, Ltd.
- * Rob Herring <robh@kernel.org>
- *
- * Copyright 2014 Sascha Hauer <s.hauer@pengutronix.de>
- * Ported to barebox
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#define pr_fmt(fmt) "fastboot: " fmt
-
-#include <common.h>
-#include <command.h>
-#include <errno.h>
-#include <malloc.h>
-#include <fcntl.h>
-#include <clock.h>
-#include <ioctl.h>
-#include <libbb.h>
-#include <bbu.h>
-#include <bootm.h>
-#include <dma.h>
-#include <fs.h>
-#include <libfile.h>
-#include <ubiformat.h>
-#include <stdlib.h>
-#include <file-list.h>
-#include <magicvar.h>
-#include <linux/sizes.h>
-#include <progress.h>
-#include <environment.h>
-#include <globalvar.h>
-#include <restart.h>
-#include <console_countdown.h>
-#include <image-sparse.h>
-#include <usb/ch9.h>
-#include <usb/gadget.h>
-#include <usb/fastboot.h>
-#include <usb/composite.h>
-#include <linux/err.h>
-#include <linux/compiler.h>
-#include <linux/stat.h>
-#include <linux/mtd/mtd-abi.h>
-#include <linux/mtd/mtd.h>
-
-#define FASTBOOT_VERSION "0.4"
-
-#define FASTBOOT_INTERFACE_CLASS 0xff
-#define FASTBOOT_INTERFACE_SUB_CLASS 0x42
-#define FASTBOOT_INTERFACE_PROTOCOL 0x03
-
-#define FASTBOOT_TMPFILE "/.fastboot.img"
-
-#define EP_BUFFER_SIZE 4096
-
-static unsigned int fastboot_max_download_size = SZ_8M;
-
-struct fb_variable {
- char *name;
- char *value;
- struct list_head list;
-};
-
-struct f_fastboot {
- struct usb_function func;
-
- /* IN/OUT EP's and corresponding requests */
- struct usb_ep *in_ep, *out_ep;
- struct usb_request *in_req, *out_req;
- struct file_list *files;
- int (*cmd_exec)(struct f_fastboot *, const char *cmd);
- int (*cmd_flash)(struct f_fastboot *, struct file_list_entry *entry,
- const char *filename, const void *buf, size_t len);
- int download_fd;
- void *buf;
- bool active;
-
- size_t download_bytes;
- size_t download_size;
- struct list_head variables;
-};
-
-static inline bool fastboot_download_to_buf(struct f_fastboot *f_fb)
-{
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_BUF))
- return true;
- else
- return false;
-}
-
-static inline struct f_fastboot *func_to_fastboot(struct usb_function *f)
-{
- return container_of(f, struct f_fastboot, func);
-}
-
-static struct usb_endpoint_descriptor fs_ep_in = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(64),
- .bInterval = 0x00,
-};
-
-static struct usb_endpoint_descriptor fs_ep_out = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = USB_DIR_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(64),
- .bInterval = 0x00,
-};
-
-static struct usb_endpoint_descriptor hs_ep_in = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(512),
- .bInterval = 0x00,
-};
-
-static struct usb_endpoint_descriptor hs_ep_out = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = USB_DIR_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = cpu_to_le16(512),
- .bInterval = 0x00,
-};
-
-static struct usb_interface_descriptor interface_desc = {
- .bLength = USB_DT_INTERFACE_SIZE,
- .bDescriptorType = USB_DT_INTERFACE,
- .bInterfaceNumber = 0x00,
- .bAlternateSetting = 0x00,
- .bNumEndpoints = 0x02,
- .bInterfaceClass = FASTBOOT_INTERFACE_CLASS,
- .bInterfaceSubClass = FASTBOOT_INTERFACE_SUB_CLASS,
- .bInterfaceProtocol = FASTBOOT_INTERFACE_PROTOCOL,
-};
-
-static struct usb_descriptor_header *fb_fs_descs[] = {
- (struct usb_descriptor_header *)&interface_desc,
- (struct usb_descriptor_header *)&fs_ep_in,
- (struct usb_descriptor_header *)&fs_ep_out,
- NULL,
-};
-
-static struct usb_descriptor_header *fb_hs_descs[] = {
- (struct usb_descriptor_header *)&interface_desc,
- (struct usb_descriptor_header *)&hs_ep_in,
- (struct usb_descriptor_header *)&hs_ep_out,
- NULL,
-};
-
-/*
- * static strings, in UTF-8
- */
-static const char fastboot_name[] = "Android Fastboot";
-
-static struct usb_string fastboot_string_defs[] = {
- [0].s = fastboot_name,
- { } /* end of list */
-};
-
-static struct usb_gadget_strings stringtab_fastboot = {
- .language = 0x0409, /* en-us */
- .strings = fastboot_string_defs,
-};
-
-static struct usb_gadget_strings *fastboot_strings[] = {
- &stringtab_fastboot,
- NULL,
-};
-
-static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
-
-static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
-{
-}
-
-static struct usb_request *fastboot_alloc_request(struct usb_ep *ep)
-{
- struct usb_request *req;
-
- req = usb_ep_alloc_request(ep);
- if (!req)
- return NULL;
-
- req->length = EP_BUFFER_SIZE;
- req->buf = dma_alloc(EP_BUFFER_SIZE);
- if (!req->buf) {
- usb_ep_free_request(ep, req);
- return NULL;
- }
- memset(req->buf, 0, EP_BUFFER_SIZE);
-
- return req;
-}
-
-static void fb_setvar(struct fb_variable *var, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- var->value = bvasprintf(fmt, ap);
- va_end(ap);
-}
-
-static struct fb_variable *fb_addvar(struct f_fastboot *f_fb, const char *fmt, ...)
-{
- struct fb_variable *var = xzalloc(sizeof(*var));
- va_list ap;
-
- va_start(ap, fmt);
- var->name = bvasprintf(fmt, ap);
- va_end(ap);
-
- list_add_tail(&var->list, &f_fb->variables);
-
- return var;
-}
-
-static int fastboot_add_partition_variables(struct f_fastboot *f_fb,
- struct file_list_entry *fentry)
-{
- struct stat s;
- size_t size = 0;
- int fd, ret;
- struct mtd_info_user mtdinfo;
- char *type = NULL;
- struct fb_variable *var;
-
- ret = stat(fentry->filename, &s);
- if (ret) {
- device_detect_by_name(devpath_to_name(fentry->filename));
- ret = stat(fentry->filename, &s);
- }
-
- if (ret) {
- if (fentry->flags & FILE_LIST_FLAG_CREATE) {
- ret = 0;
- type = "file";
- goto out;
- }
-
- goto out;
- }
-
- fd = open(fentry->filename, O_RDWR);
- if (fd < 0) {
- ret = -EINVAL;
- goto out;
- }
-
- size = s.st_size;
-
- ret = ioctl(fd, MEMGETINFO, &mtdinfo);
-
- close(fd);
-
- if (!ret) {
- switch (mtdinfo.type) {
- case MTD_NANDFLASH:
- type = "NAND-flash";
- break;
- case MTD_NORFLASH:
- type = "NOR-flash";
- break;
- case MTD_UBIVOLUME:
- type = "UBI";
- break;
- default:
- type = "flash";
- break;
- }
-
- goto out;
- }
-
- type = "basic";
- ret = 0;
-
-out:
- if (ret)
- return ret;
-
- var = fb_addvar(f_fb, "partition-size:%s", fentry->name);
- fb_setvar(var, "%08zx", size);
- var = fb_addvar(f_fb, "partition-type:%s", fentry->name);
- fb_setvar(var, "%s", type);
-
- return ret;
-}
-
-static int fastboot_add_bbu_variables(struct bbu_handler *handler, void *ctx)
-{
- struct f_fastboot *f_fb = ctx;
- char *name;
- int ret;
-
- name = basprintf("bbu-%s", handler->name);
-
- ret = file_list_add_entry(f_fb->files, name, handler->devicefile, 0);
-
- free(name);
-
- return ret;
-}
-
-static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
-{
- struct usb_composite_dev *cdev = c->cdev;
- int id, ret;
- struct usb_gadget *gadget = c->cdev->gadget;
- struct f_fastboot *f_fb = func_to_fastboot(f);
- struct usb_string *us;
- const struct usb_function_instance *fi = f->fi;
- struct f_fastboot_opts *opts = container_of(fi, struct f_fastboot_opts, func_inst);
- struct file_list_entry *fentry;
- struct fb_variable *var;
-
- f_fb->files = opts->files;
- f_fb->cmd_exec = opts->cmd_exec;
- f_fb->cmd_flash = opts->cmd_flash;
-
- var = fb_addvar(f_fb, "version");
- fb_setvar(var, "0.4");
- var = fb_addvar(f_fb, "bootloader-version");
- fb_setvar(var, release_string);
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE)) {
- var = fb_addvar(f_fb, "max-download-size");
- fb_setvar(var, "%u", fastboot_max_download_size);
- }
-
- if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && opts->export_bbu)
- bbu_handlers_iterate(fastboot_add_bbu_variables, f_fb);
-
- file_list_for_each_entry(f_fb->files, fentry) {
- ret = fastboot_add_partition_variables(f_fb, fentry);
- if (ret)
- return ret;
- }
-
- /* DYNAMIC interface numbers assignments */
- id = usb_interface_id(c, f);
- if (id < 0)
- return id;
- interface_desc.bInterfaceNumber = id;
-
- id = usb_string_id(c->cdev);
- if (id < 0)
- return id;
- fastboot_string_defs[0].id = id;
- interface_desc.iInterface = id;
-
- us = usb_gstrings_attach(cdev, fastboot_strings, 1);
- if (IS_ERR(us)) {
- ret = PTR_ERR(us);
- return ret;
- }
-
- f_fb->in_ep = usb_ep_autoconfig(gadget, &fs_ep_in);
- if (!f_fb->in_ep)
- return -ENODEV;
- f_fb->in_ep->driver_data = c->cdev;
-
- f_fb->out_ep = usb_ep_autoconfig(gadget, &fs_ep_out);
- if (!f_fb->out_ep)
- return -ENODEV;
- f_fb->out_ep->driver_data = c->cdev;
-
- hs_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
- hs_ep_in.bEndpointAddress = fs_ep_in.bEndpointAddress;
-
- f_fb->out_req = fastboot_alloc_request(f_fb->out_ep);
- if (!f_fb->out_req) {
- puts("failed to alloc out req\n");
- ret = -EINVAL;
- return ret;
- }
-
- f_fb->out_req->complete = rx_handler_command;
- f_fb->out_req->context = f_fb;
-
- f_fb->in_req = fastboot_alloc_request(f_fb->in_ep);
- if (!f_fb->in_req) {
- puts("failed alloc req in\n");
- ret = -EINVAL;
- return ret;
- }
- f_fb->in_req->complete = fastboot_complete;
-
- ret = usb_assign_descriptors(f, fb_fs_descs, fb_hs_descs, NULL);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f)
-{
- struct f_fastboot *f_fb = func_to_fastboot(f);
- struct fb_variable *var, *tmp;
-
- usb_ep_dequeue(f_fb->in_ep, f_fb->in_req);
- free(f_fb->in_req->buf);
- usb_ep_free_request(f_fb->in_ep, f_fb->in_req);
- f_fb->in_req = NULL;
-
- usb_ep_dequeue(f_fb->out_ep, f_fb->out_req);
- free(f_fb->out_req->buf);
- usb_ep_free_request(f_fb->out_ep, f_fb->out_req);
- f_fb->out_req = NULL;
-
- list_for_each_entry_safe(var, tmp, &f_fb->variables, list) {
- free(var->name);
- free(var->value);
- list_del(&var->list);
- free(var);
- }
-
- f_fb->active = false;
-}
-
-static void fastboot_disable(struct usb_function *f)
-{
- struct f_fastboot *f_fb = func_to_fastboot(f);
-
- usb_ep_disable(f_fb->out_ep);
- usb_ep_disable(f_fb->in_ep);
-}
-
-static int fastboot_set_alt(struct usb_function *f,
- unsigned interface, unsigned alt)
-{
- int ret;
- struct f_fastboot *f_fb = func_to_fastboot(f);
-
- pr_debug("%s: func: %s intf: %d alt: %d\n",
- __func__, f->name, interface, alt);
-
- ret = config_ep_by_speed(f->config->cdev->gadget, f,
- f_fb->out_ep);
- if (ret)
- return ret;
-
- ret = usb_ep_enable(f_fb->out_ep);
- if (ret) {
- pr_err("failed to enable out ep: %s\n", strerror(-ret));
- return ret;
- }
-
- ret = config_ep_by_speed(f->config->cdev->gadget, f,
- f_fb->in_ep);
- if (ret)
- return ret;
-
- ret = usb_ep_enable(f_fb->in_ep);
- if (ret) {
- pr_err("failed to enable in ep: %s\n", strerror(-ret));
- return ret;
- }
-
- memset(f_fb->out_req->buf, 0, EP_BUFFER_SIZE);
- ret = usb_ep_queue(f_fb->out_ep, f_fb->out_req);
- if (ret)
- goto err;
-
- return 0;
-err:
- fastboot_disable(f);
- return ret;
-}
-
-static struct f_fastboot *g_f_fb;
-
-static void fastboot_free_func(struct usb_function *f)
-{
- struct f_fastboot *f_fb = container_of(f, struct f_fastboot, func);
-
- if (g_f_fb == f_fb)
- g_f_fb = NULL;
-
- free(f_fb);
-}
-
-/*
- * A "oem exec bootm" or similar commands will stop barebox. Tell the
- * fastboot command on the other side so that it doesn't run into a
- * timeout.
- */
-static void fastboot_shutdown(void)
-{
- struct f_fastboot *f_fb = g_f_fb;
-
- if (!f_fb || !f_fb->active)
- return;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "barebox shutting down");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-early_exitcall(fastboot_shutdown);
-
-static struct usb_function *fastboot_alloc_func(struct usb_function_instance *fi)
-{
- struct f_fastboot *f_fb;
-
- f_fb = xzalloc(sizeof(*f_fb));
-
- INIT_LIST_HEAD(&f_fb->variables);
-
- f_fb->func.name = "fastboot";
- f_fb->func.strings = fastboot_strings;
- f_fb->func.bind = fastboot_bind;
- f_fb->func.set_alt = fastboot_set_alt;
- f_fb->func.disable = fastboot_disable;
- f_fb->func.unbind = fastboot_unbind;
- f_fb->func.free_func = fastboot_free_func;
-
- if (!g_f_fb)
- g_f_fb = f_fb;
-
- return &f_fb->func;
-}
-
-static void fastboot_free_instance(struct usb_function_instance *fi)
-{
- struct f_fastboot_opts *opts;
-
- opts = container_of(fi, struct f_fastboot_opts, func_inst);
- kfree(opts);
-}
-
-static struct usb_function_instance *fastboot_alloc_instance(void)
-{
- struct f_fastboot_opts *opts;
-
- opts = xzalloc(sizeof(*opts));
- opts->func_inst.free_func_inst = fastboot_free_instance;
-
- return &opts->func_inst;
-}
-
-DECLARE_USB_FUNCTION_INIT(fastboot, fastboot_alloc_instance, fastboot_alloc_func);
-
-static int fastboot_tx_write(struct f_fastboot *f_fb, const char *buffer, unsigned int buffer_size)
-{
- struct usb_request *in_req = f_fb->in_req;
- uint64_t start;
- int ret;
-
- memcpy(in_req->buf, buffer, buffer_size);
- in_req->length = buffer_size;
-
- ret = usb_ep_queue(f_fb->in_ep, in_req);
- if (ret)
- pr_err("Error %d on queue\n", ret);
-
- start = get_time_ns();
-
- while (in_req->status == -EINPROGRESS) {
- if (is_timeout(start, 2 * SECOND))
- return -ETIMEDOUT;
- usb_gadget_poll();
- }
-
- if (in_req->status)
- pr_err("Failed to send answer: %d\n", in_req->status);
-
- return 0;
-}
-
-static char *fastboot_msg[] = {
- [FASTBOOT_MSG_OKAY] = "OKAY",
- [FASTBOOT_MSG_FAIL] = "FAIL",
- [FASTBOOT_MSG_INFO] = "INFO",
- [FASTBOOT_MSG_DATA] = "DATA",
-};
-
-int fastboot_tx_print(struct f_fastboot *f_fb, enum fastboot_msg_type type,
- const char *fmt, ...)
-{
- struct va_format vaf;
- char buf[64];
- va_list ap;
- int n;
- const char *msg = fastboot_msg[type];
-
- va_start(ap, fmt);
- vaf.fmt = fmt;
- vaf.va = &ap;
-
- n = snprintf(buf, 64, "%s%pV", msg, &vaf);
-
- switch (type) {
- case FASTBOOT_MSG_OKAY:
- f_fb->active = false;
- break;
- case FASTBOOT_MSG_FAIL:
- f_fb->active = false;
- pr_err("%pV\n", &vaf);
- break;
- case FASTBOOT_MSG_INFO:
- pr_info("%pV\n", &vaf);
- break;
- case FASTBOOT_MSG_DATA:
- break;
- }
-
- va_end(ap);
-
- if (n > 64)
- n = 64;
-
- return fastboot_tx_write(f_fb, buf, n);
-}
-
-static void cb_reboot(struct f_fastboot *f_fb, const char *cmd)
-{
- restart_machine();
-}
-
-static int strcmp_l1(const char *s1, const char *s2)
-{
- if (!s1 || !s2)
- return -1;
- return strncmp(s1, s2, strlen(s1));
-}
-
-static void cb_getvar(struct f_fastboot *f_fb, const char *cmd)
-{
- struct fb_variable *var;
-
- pr_debug("getvar: \"%s\"\n", cmd);
-
- if (!strcmp_l1(cmd, "all")) {
- list_for_each_entry(var, &f_fb->variables, list) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "%s: %s",
- var->name, var->value);
- }
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
- return;
- }
-
- list_for_each_entry(var, &f_fb->variables, list) {
- if (!strcmp(cmd, var->name)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, var->value);
- return;
- }
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static int rx_bytes_expected(struct f_fastboot *f_fb)
-{
- int remaining = f_fb->download_size - f_fb->download_bytes;
-
- if (remaining >= EP_BUFFER_SIZE)
- return EP_BUFFER_SIZE;
-
- return ALIGN(remaining, f_fb->out_ep->maxpacket);
-}
-
-static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
-{
- struct f_fastboot *f_fb = req->context;
- const unsigned char *buffer = req->buf;
- int ret;
-
- if (req->status != 0) {
- pr_err("Bad status: %d\n", req->status);
- return;
- }
-
- if (fastboot_download_to_buf(f_fb)) {
- memcpy(f_fb->buf + f_fb->download_bytes, buffer, req->actual);
- } else {
- ret = write(f_fb->download_fd, buffer, req->actual);
- if (ret < 0) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
- return;
- }
- }
-
- f_fb->download_bytes += req->actual;
-
- req->length = rx_bytes_expected(f_fb);
-
- show_progress(f_fb->download_bytes);
-
- /* Check if transfer is done */
- if (f_fb->download_bytes >= f_fb->download_size) {
- req->complete = rx_handler_command;
- req->length = EP_BUFFER_SIZE;
- close(f_fb->download_fd);
-
- printf("\n");
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Downloading %d bytes finished",
- f_fb->download_bytes);
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
- }
-
- req->actual = 0;
- usb_ep_queue(ep, req);
-}
-
-static void cb_download(struct f_fastboot *f_fb, const char *cmd)
-{
- f_fb->download_size = simple_strtoul(cmd, NULL, 16);
- f_fb->download_bytes = 0;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Downloading %d bytes...",
- f_fb->download_size);
-
- init_progression_bar(f_fb->download_size);
-
- if (fastboot_download_to_buf(f_fb)) {
- free(f_fb->buf);
- f_fb->buf = malloc(f_fb->download_size);
- if (!f_fb->buf) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "not enough memory");
- return;
- }
- } else {
- f_fb->download_fd = open(FASTBOOT_TMPFILE, O_WRONLY | O_CREAT | O_TRUNC);
- if (f_fb->download_fd < 0) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "internal error");
- return;
- }
- }
-
- if (!f_fb->download_size) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "data invalid size");
- } else {
- struct usb_request *req = f_fb->out_req;
- fastboot_tx_print(f_fb, FASTBOOT_MSG_DATA,
- "%08x", f_fb->download_size);
- req->complete = rx_handler_dl_image;
- req->length = rx_bytes_expected(f_fb);
- }
-}
-
-static void __maybe_unused cb_boot(struct f_fastboot *f_fb, const char *opt)
-{
- int ret;
- struct bootm_data data = {
- .initrd_address = UIMAGE_INVALID_ADDRESS,
- .os_address = UIMAGE_SOME_ADDRESS,
- };
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Booting kernel..\n");
-
- globalvar_set_match("linux.bootargs.dyn.", "");
- globalvar_set_match("bootm.image", "");
-
- data.os_file = xstrdup(FASTBOOT_TMPFILE);
-
- ret = bootm_boot(&data);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "Booting failed: %s",
- strerror(-ret));
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static struct mtd_info *get_mtd(struct f_fastboot *f_fb, const char *filename)
-{
- int fd, ret;
- struct mtd_info_user meminfo;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- return ERR_PTR(-errno);
-
- ret = ioctl(fd, MEMGETINFO, &meminfo);
-
- close(fd);
-
- if (ret)
- return ERR_PTR(ret);
-
- return meminfo.mtd;
-}
-
-static int do_ubiformat(struct f_fastboot *f_fb, struct mtd_info *mtd,
- const char *file, const void *buf, size_t len)
-{
- struct ubiformat_args args = {
- .yes = 1,
- .image = file,
- .image_buf = buf,
- .image_size = len,
- };
-
- if (!file)
- args.novtbl = 1;
-
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "ubiformat is not available");
- return -ENODEV;
- }
-
- return ubiformat(mtd, &args);
-}
-
-
-static int check_ubi(struct f_fastboot *f_fb, struct file_list_entry *fentry,
- enum filetype filetype)
-{
- struct mtd_info *mtd;
-
- mtd = get_mtd(f_fb, fentry->filename);
-
- /*
- * Issue a warning when we are about to write a UBI image to a MTD device
- * and the FILE_LIST_FLAG_UBI is not given as this means we loose all
- * erase counters.
- */
- if (!IS_ERR(mtd) && filetype == filetype_ubi &&
- !(fentry->flags & FILE_LIST_FLAG_UBI)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "writing UBI image to MTD device, "
- "add the 'u' ");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "flag to the partition description");
- return 0;
- }
-
- if (!(fentry->flags & FILE_LIST_FLAG_UBI))
- return 0;
-
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "ubiformat not available");
- return -ENOSYS;
- }
-
- if (IS_ERR(mtd)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "UBI flag given on non-MTD device");
- return -EINVAL;
- }
-
- if (filetype == filetype_ubi) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "This is an UBI image...");
- return 1;
- } else {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "This is no UBI image but %s",
- file_type_to_string(filetype));
- return -EINVAL;
- }
-}
-
-static int fastboot_handle_sparse(struct f_fastboot *f_fb,
- struct file_list_entry *fentry)
-{
- struct sparse_image_ctx *sparse;
- void *buf = NULL;
- int ret, fd;
- unsigned int flags = O_RDWR;
- int bufsiz = SZ_128K;
- struct stat s;
- struct mtd_info *mtd = NULL;
-
- ret = stat(fentry->filename, &s);
- if (ret) {
- if (fentry->flags & FILE_LIST_FLAG_CREATE)
- flags |= O_CREAT;
- else
- return ret;
- }
-
- fd = open(fentry->filename, flags);
- if (fd < 0)
- return -errno;
-
- ret = fstat(fd, &s);
- if (ret)
- goto out_close_fd;
-
- sparse = sparse_image_open(FASTBOOT_TMPFILE);
- if (IS_ERR(sparse)) {
- pr_err("Cannot open sparse image\n");
- ret = PTR_ERR(sparse);
- goto out_close_fd;
- }
-
- if (S_ISREG(s.st_mode)) {
- ret = ftruncate(fd, sparse_image_size(sparse));
- if (ret)
- goto out;
- }
-
- buf = malloc(bufsiz);
- if (!buf) {
- ret = -ENOMEM;
- goto out;
- }
-
- if (fentry->flags & FILE_LIST_FLAG_UBI) {
- mtd = get_mtd(f_fb, fentry->filename);
- if (IS_ERR(mtd)) {
- ret = PTR_ERR(mtd);
- goto out;
- }
- }
-
- while (1) {
- int retlen;
- loff_t pos;
-
- ret = sparse_image_read(sparse, buf, &pos, bufsiz, &retlen);
- if (ret)
- goto out;
- if (!retlen)
- break;
-
- if (pos == 0) {
- ret = check_ubi(f_fb, fentry, file_detect_type(buf, retlen));
- if (ret < 0)
- goto out;
- }
-
- if (fentry->flags & FILE_LIST_FLAG_UBI) {
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- ret = -ENOSYS;
- goto out;
- }
-
- if (pos == 0) {
- ret = do_ubiformat(f_fb, mtd, NULL, NULL, 0);
- if (ret)
- goto out;
- }
-
- ret = ubiformat_write(mtd, buf, retlen, pos);
- if (ret)
- goto out;
- } else {
- pos = lseek(fd, pos, SEEK_SET);
- if (pos == -1) {
- ret = -errno;
- goto out;
- }
-
- ret = write_full(fd, buf, retlen);
- if (ret < 0)
- goto out;
- }
- }
-
- ret = 0;
-
-out:
- free(buf);
- sparse_image_close(sparse);
-out_close_fd:
- close(fd);
-
- return ret;
-}
-
-static void cb_flash(struct f_fastboot *f_fb, const char *cmd)
-{
- struct file_list_entry *fentry;
- int ret;
- const char *filename = NULL, *sourcefile;
- enum filetype filetype;
-
- if (fastboot_download_to_buf(f_fb)) {
- sourcefile = NULL;
- filetype = file_detect_type(f_fb->buf, f_fb->download_bytes);
- } else {
- sourcefile = FASTBOOT_TMPFILE;
- filetype = file_name_detect_type(FASTBOOT_TMPFILE);
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Copying file to %s...",
- cmd);
-
- fentry = file_list_entry_by_name(f_fb->files, cmd);
-
- if (!fentry) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "No such partition: %s",
- cmd);
- ret = -ENOENT;
- goto out;
- }
-
- if (f_fb->cmd_flash) {
- ret = f_fb->cmd_flash(f_fb, fentry, sourcefile, f_fb->buf,
- f_fb->download_size);
- if (ret != FASTBOOT_CMD_FALLTHROUGH)
- goto out;
- }
-
- filename = fentry->filename;
-
- if (filetype == filetype_android_sparse) {
- if (!IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE) ||
- fastboot_download_to_buf(f_fb)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "sparse image not supported");
- ret = -EOPNOTSUPP;
- goto out;
- }
-
- ret = fastboot_handle_sparse(f_fb, fentry);
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "writing sparse image: %s",
- strerror(-ret));
-
- goto out;
- }
-
- ret = check_ubi(f_fb, fentry, filetype);
- if (ret < 0)
- goto out;
-
- if (ret > 0) {
- struct mtd_info *mtd;
-
- mtd = get_mtd(f_fb, fentry->filename);
-
- ret = do_ubiformat(f_fb, mtd, sourcefile, f_fb->buf,
- f_fb->download_size);
- if (ret) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "write partition: %s",
- strerror(-ret));
- goto out;
- }
-
- goto out;
- }
-
- if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && filetype_is_barebox_image(filetype)) {
- struct bbu_handler *handler;
- struct bbu_data data = {
- .devicefile = filename,
- .flags = BBU_FLAG_YES,
- };
-
- handler = bbu_find_handler_by_device(data.devicefile);
- if (!handler)
- goto copy;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "This is a barebox image...");
-
- if (fastboot_download_to_buf(f_fb)) {
- data.len = f_fb->download_size;
- } else {
- ret = read_file_2(sourcefile, &data.len, &f_fb->buf,
- f_fb->download_size);
- if (ret) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "reading barebox");
- goto out;
- }
- }
-
- data.image = f_fb->buf;
- data.imagefile = sourcefile;
-
- ret = barebox_update(&data, handler);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "update barebox: %s", strerror(-ret));
-
- goto out;
- }
-
-copy:
- if (fastboot_download_to_buf(f_fb))
- ret = write_file(filename, f_fb->buf, f_fb->download_size);
- else
- ret = copy_file(FASTBOOT_TMPFILE, filename, 1);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "write partition: %s", strerror(-ret));
-
-out:
- if (!ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-
- free(f_fb->buf);
- f_fb->buf = NULL;
-
- if (!fastboot_download_to_buf(f_fb))
- unlink(FASTBOOT_TMPFILE);
-}
-
-static void cb_erase(struct f_fastboot *f_fb, const char *cmd)
-{
- struct file_list_entry *fentry;
- int ret;
- const char *filename = NULL;
- int fd;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Erasing %s...", cmd);
-
- file_list_for_each_entry(f_fb->files, fentry) {
- if (!strcmp(cmd, fentry->name)) {
- filename = fentry->filename;
- break;
- }
- }
-
- if (!filename) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "No such partition: %s", cmd);
- return;
- }
-
- fd = open(filename, O_RDWR);
- if (fd < 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-fd));
-
- ret = erase(fd, ERASE_SIZE_ALL, 0);
-
- close(fd);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "cannot erase partition %s: %s",
- filename, strerror(-ret));
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-struct cmd_dispatch_info {
- char *cmd;
- void (*cb)(struct f_fastboot *f_fb, const char *opt);
-};
-
-static void fb_run_command(struct f_fastboot *f_fb, const char *cmdbuf,
- const struct cmd_dispatch_info *cmds, int num_commands)
-{
- const struct cmd_dispatch_info *cmd;
- int i;
-
- console_countdown_abort();
-
- for (i = 0; i < num_commands; i++) {
- cmd = &cmds[i];
-
- if (!strcmp_l1(cmd->cmd, cmdbuf)) {
- cmd->cb(f_fb, cmdbuf + strlen(cmd->cmd));
-
- return;
- }
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "unknown command %s",
- cmdbuf);
-}
-
-static void cb_oem_getenv(struct f_fastboot *f_fb, const char *cmd)
-{
- const char *value;
-
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- value = getenv(cmd);
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, value ? value : "");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static void cb_oem_setenv(struct f_fastboot *f_fb, const char *cmd)
-{
- char *var = xstrdup(cmd);
- char *value;
- int ret;
-
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- value = strchr(var, '=');
- if (!value) {
- ret = -EINVAL;
- goto out;
- }
-
- *value++ = 0;
-
- ret = setenv(var, value);
- if (ret)
- goto out;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-out:
- free(var);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
-}
-
-static void cb_oem_exec(struct f_fastboot *f_fb, const char *cmd)
-{
- int ret;
-
- if (!IS_ENABLED(CONFIG_COMMAND_SUPPORT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "no command support available");
- return;
- }
-
- ret = run_command(cmd);
- if (ret < 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
- else if (ret > 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "");
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static const struct cmd_dispatch_info cmd_oem_dispatch_info[] = {
- {
- .cmd = "getenv ",
- .cb = cb_oem_getenv,
- }, {
- .cmd = "setenv ",
- .cb = cb_oem_setenv,
- }, {
- .cmd = "exec ",
- .cb = cb_oem_exec,
- },
-};
-
-static void cb_oem(struct f_fastboot *f_fb, const char *cmd)
-{
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- fb_run_command(f_fb, cmd, cmd_oem_dispatch_info, ARRAY_SIZE(cmd_oem_dispatch_info));
-}
-
-static const struct cmd_dispatch_info cmd_dispatch_info[] = {
- {
- .cmd = "reboot",
- .cb = cb_reboot,
- }, {
- .cmd = "getvar:",
- .cb = cb_getvar,
- }, {
- .cmd = "download:",
- .cb = cb_download,
-#if defined(CONFIG_BOOTM)
- }, {
- .cmd = "boot",
- .cb = cb_boot,
-#endif
- }, {
- .cmd = "flash:",
- .cb = cb_flash,
- }, {
- .cmd = "erase:",
- .cb = cb_erase,
- }, {
- .cmd = "oem ",
- .cb = cb_oem,
- },
-};
-
-static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
-{
- char *cmdbuf = req->buf;
- struct f_fastboot *f_fb = req->context;
- int ret;
-
- if (req->status != 0)
- return;
-
- f_fb->active = true;
-
- *(cmdbuf + req->actual) = 0;
-
- if (f_fb->cmd_exec) {
- ret = f_fb->cmd_exec(f_fb, cmdbuf);
- if (ret != FASTBOOT_CMD_FALLTHROUGH)
- goto done;
- }
-
- fb_run_command(f_fb, cmdbuf, cmd_dispatch_info,
- ARRAY_SIZE(cmd_dispatch_info));
-done:
- *cmdbuf = '\0';
- req->actual = 0;
- memset(req->buf, 0, EP_BUFFER_SIZE);
- usb_ep_queue(ep, req);
-}
-
-static int fastboot_globalvars_init(void)
-{
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE))
- globalvar_add_simple_int("usbgadget.fastboot_max_download_size",
- &fastboot_max_download_size, "%u");
-
- return 0;
-}
-
-device_initcall(fastboot_globalvars_init);
-
-BAREBOX_MAGICVAR_NAMED(global_usbgadget_fastboot_max_download_size,
- global.usbgadget.fastboot_max_download_size,
- "Fastboot maximum download size");
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-25 00:24:43 +0000