[U-Boot] [PATCH v8 15/18] net: fastboot: Merge AOSP UDP fastboot
Alex Kiernan
alex.kiernan at gmail.com
Tue May 29 15:30:53 UTC 2018
Merge UDP fastboot support from AOSP:
https://android.googlesource.com/platform/external/u-boot/+/android-o-mr1-iot-preview-8
Signed-off-by: Alex Kiernan <alex.kiernan at gmail.com>
Signed-off-by: Alex Deymo <deymo at google.com>
Signed-off-by: Jocelyn Bohr <bohr at google.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Changes in v8: None
Changes in v7: None
Changes in v6:
- add docbook comments
- rename fastboot_download_data() to fastboot_data_download(), rename
fastboot_get_bytes_remaining() to fastboot_data_remaining()
- split fastboot_data_complete() out from fastboot_data_download() so we
can call it at the end of the transfer phase for USB
Changes in v5:
- make fastboot_bytes_received/expected static and add function
fastboot_get_bytes_remaining()
- move fastboot_buf_addr/fastboot_buf_size/fastboot_progress_callback
into fastboot-internal.h
- delete redundant fb_ prefixes from statics
Changes in v4:
- guard fb_getvar/fb_command with UDP_FUNCTION_FASTBOOT in Makefile
- add docbook comments
- remove parameter from fastboot_boot() since we always want
fastboot_buf_addr (and if we're using fastboot_bootcmd then it's
ignored)
- split oem format into new patch
Changes in v3:
- use FASTBOOT as our guard in Kconfig not a list of USB || UDP
- correct mis-translation from AOSP introduced when cleaning up for
checkpatch - we should write when buffer is not NULL, rather than
erasing, and erase when buffer is NULL
- use CMD_RET_USAGE from do_fastboot
- remove do_fastboot_udp from cmd/net.c and rewrite using net_loop()
- rename timed_send_info to fastboot_send_info, rename fastboot_send_info to
fastboot_udp_send_info
- replace FASTBOOT_HEADER_SIZE with sizeof(struct fastboot_header)
- move start time into timed_send_info() rather than passing it in
- make calls to fastboot_udp_send_info a runtime dependency, not a compile
time one
- set ${filesize} to size of downloaded image
- add progress meter from USB path during download
- add support for 'oem format' command from the USB path
- rename 'fastbootcmd' to 'fastboot_bootcmd' to make clear that this is the
fastboot boot command
- make getvar implementation table driven
- add fastboot_buf_addr, fastboot_buf_size to override buffer address and
size
- return correct filesystem type in getvar partition-type on MMC
- process "fastboot." prefixed env variables in getvar first so you
can override the normal values (this also lets you set a fs type for
NAND devices)
- squash subsequent patches which change this code into this one:
- If the fastboot flash/erase commands are disabled, remove that support
so we still build correctly.
- Add NAND support to fastboot UDP flash/erase commands
- If we don't have a partition name passed, report it as not found.
- Change the behaviour of the fastboot net code such that
"reboot-bootloader" is no longer written to CONFIG_FASTBOOT_BUF_ADDR for
use as a marker on reboot (the AOSP code in common/android-bootloader.c
uses this marker - this code could be reinstated there if that gets
merged).
- Merge USB and UDP boot code. The USB implementation stays the same, but
UDP no longer passes an fdt. We introduce a new environment variable
'fastboot_bootcmd' which if set overrides the hardcoded boot command,
setting this then allows the UDP implementation to remain the same. If
after running 'fastboot_bootcmd' the board has not booted, control is
returned to U-Boot and the fastboot process ends.
- Separate the fastboot protocol handling from the fastboot UDP code in
preparation for reusing it in the USB code.
Changes in v2:
- ensure fastboot syntax is backward compatible - 'fastboot 0' means
'fastboot usb 0'
cmd/Kconfig | 4 +-
cmd/fastboot.c | 91 +++++++++-
drivers/fastboot/Kconfig | 7 +
drivers/fastboot/Makefile | 3 +-
drivers/fastboot/fb_command.c | 302 ++++++++++++++++++++++++++++++++
drivers/fastboot/fb_common.c | 93 ++++++++++
drivers/fastboot/fb_getvar.c | 230 ++++++++++++++++++++++++
drivers/fastboot/fb_mmc.c | 84 ++++++++-
drivers/fastboot/fb_nand.c | 19 +-
include/fastboot-internal.h | 36 ++++
include/fastboot.h | 104 +++++++++++
include/fb_mmc.h | 18 +-
include/fb_nand.h | 19 +-
include/net.h | 2 +-
include/net/fastboot.h | 21 +++
net/Makefile | 1 +
net/fastboot.c | 317 ++++++++++++++++++++++++++++++++++
net/net.c | 7 +
18 files changed, 1338 insertions(+), 20 deletions(-)
create mode 100644 drivers/fastboot/fb_command.c
create mode 100644 drivers/fastboot/fb_getvar.c
create mode 100644 include/fastboot-internal.h
create mode 100644 include/net/fastboot.h
create mode 100644 net/fastboot.c
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 30cf63f172..17ca0bb267 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -655,8 +655,8 @@ config CMD_FASTBOOT
This enables the command "fastboot" which enables the Android
fastboot mode for the platform. Fastboot is a protocol for
downloading images, flashing and device control used on
- Android devices. Fastboot requires support for acting as a USB
- device.
+ Android devices. Fastboot requires either the network stack
+ enabled or support for acting as a USB device.
See doc/README.android-fastboot for more information.
diff --git a/cmd/fastboot.c b/cmd/fastboot.c
index a5ec5f46f6..557257aef8 100644
--- a/cmd/fastboot.c
+++ b/cmd/fastboot.c
@@ -10,10 +10,32 @@
#include <command.h>
#include <console.h>
#include <g_dnl.h>
+#include <fastboot.h>
+#include <net.h>
#include <usb.h>
-static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+static int do_fastboot_udp(int argc, char *const argv[],
+ uintptr_t buf_addr, size_t buf_size)
{
+#if CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT)
+ int err = net_loop(FASTBOOT);
+
+ if (err < 0) {
+ printf("fastboot udp error: %d\n", err);
+ return CMD_RET_FAILURE;
+ }
+
+ return CMD_RET_SUCCESS;
+#else
+ pr_err("Fastboot UDP not enabled\n");
+ return CMD_RET_FAILURE;
+#endif
+}
+
+static int do_fastboot_usb(int argc, char *const argv[],
+ uintptr_t buf_addr, size_t buf_size)
+{
+#if CONFIG_IS_ENABLED(USB_FUNCTION_FASTBOOT)
int controller_index;
char *usb_controller;
int ret;
@@ -58,11 +80,70 @@ exit:
board_usb_cleanup(controller_index, USB_INIT_DEVICE);
return ret;
+#else
+ pr_err("Fastboot USB not enabled\n");
+ return CMD_RET_FAILURE;
+#endif
+}
+
+static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+ uintptr_t buf_addr = (uintptr_t)NULL;
+ size_t buf_size = 0;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ while (argc > 1 && **(argv + 1) == '-') {
+ char *arg = *++argv;
+
+ --argc;
+ while (*++arg) {
+ switch (*arg) {
+ case 'l':
+ if (--argc <= 0)
+ return CMD_RET_USAGE;
+ buf_addr = simple_strtoul(*++argv, NULL, 16);
+ goto NXTARG;
+
+ case 's':
+ if (--argc <= 0)
+ return CMD_RET_USAGE;
+ buf_size = simple_strtoul(*++argv, NULL, 16);
+ goto NXTARG;
+
+ default:
+ return CMD_RET_USAGE;
+ }
+ }
+NXTARG:
+ ;
+ }
+
+ fastboot_init((void *)buf_addr, buf_size);
+
+ if (!strcmp(argv[1], "udp"))
+ return do_fastboot_udp(argc, argv, buf_addr, buf_size);
+
+ if (!strcmp(argv[1], "usb")) {
+ argv++;
+ argc--;
+ }
+
+ return do_fastboot_usb(argc, argv, buf_addr, buf_size);
}
+#ifdef CONFIG_SYS_LONGHELP
+static char fastboot_help_text[] =
+ "[-l addr] [-s size] usb <controller> | udp\n"
+ "\taddr - address of buffer used during data transfers ("
+ __stringify(CONFIG_FASTBOOT_BUF_ADDR) ")\n"
+ "\tsize - size of buffer used during data transfers ("
+ __stringify(CONFIG_FASTBOOT_BUF_SIZE) ")"
+ ;
+#endif
+
U_BOOT_CMD(
- fastboot, 2, 1, do_fastboot,
- "use USB Fastboot protocol",
- "<USB_controller>\n"
- " - run as a fastboot usb device"
+ fastboot, CONFIG_SYS_MAXARGS, 1, do_fastboot,
+ "run as a fastboot usb or udp device", fastboot_help_text
);
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig
index 0c9ced53de..625f016600 100644
--- a/drivers/fastboot/Kconfig
+++ b/drivers/fastboot/Kconfig
@@ -14,6 +14,13 @@ config USB_FUNCTION_FASTBOOT
help
This enables the USB part of the fastboot gadget.
+config UDP_FUNCTION_FASTBOOT
+ depends on NET
+ select FASTBOOT
+ bool "Enable fastboot protocol over UDP"
+ help
+ This enables the fastboot protocol over UDP.
+
if FASTBOOT
config FASTBOOT_BUF_ADDR
diff --git a/drivers/fastboot/Makefile b/drivers/fastboot/Makefile
index e4bd389adf..8831096181 100644
--- a/drivers/fastboot/Makefile
+++ b/drivers/fastboot/Makefile
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0+
obj-y += fb_common.o
-
+obj-$(CONFIG_UDP_FUNCTION_FASTBOOT) += fb_getvar.o
+obj-$(CONFIG_UDP_FUNCTION_FASTBOOT) += fb_command.o
obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fb_mmc.o
obj-$(CONFIG_FASTBOOT_FLASH_NAND) += fb_nand.o
diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c
new file mode 100644
index 0000000000..af4f500694
--- /dev/null
+++ b/drivers/fastboot/fb_command.c
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ */
+
+#include <common.h>
+#include <fastboot.h>
+#include <fastboot-internal.h>
+#include <fb_mmc.h>
+#include <fb_nand.h>
+#include <part.h>
+#include <stdlib.h>
+
+/**
+ * image_size - final fastboot image size
+ */
+static u32 image_size;
+
+/**
+ * fastboot_bytes_received - number of bytes received in the current download
+ */
+static u32 fastboot_bytes_received;
+
+/**
+ * fastboot_bytes_expected - number of bytes expected in the current download
+ */
+static u32 fastboot_bytes_expected;
+
+static void okay(char *, char *);
+static void getvar(char *, char *);
+static void download(char *, char *);
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+static void flash(char *, char *);
+static void erase(char *, char *);
+#endif
+static void reboot_bootloader(char *, char *);
+
+static const struct {
+ const char *command;
+ void (*dispatch)(char *cmd_parameter, char *response);
+} commands[FASTBOOT_COMMAND_COUNT] = {
+ [FASTBOOT_COMMAND_GETVAR] = {
+ .command = "getvar",
+ .dispatch = getvar
+ },
+ [FASTBOOT_COMMAND_DOWNLOAD] = {
+ .command = "download",
+ .dispatch = download
+ },
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+ [FASTBOOT_COMMAND_FLASH] = {
+ .command = "flash",
+ .dispatch = flash
+ },
+ [FASTBOOT_COMMAND_ERASE] = {
+ .command = "erase",
+ .dispatch = erase
+ },
+#endif
+ [FASTBOOT_COMMAND_BOOT] = {
+ .command = "boot",
+ .dispatch = okay
+ },
+ [FASTBOOT_COMMAND_CONTINUE] = {
+ .command = "continue",
+ .dispatch = okay
+ },
+ [FASTBOOT_COMMAND_REBOOT] = {
+ .command = "reboot",
+ .dispatch = okay
+ },
+ [FASTBOOT_COMMAND_REBOOT_BOOTLOADER] = {
+ .command = "reboot-bootloader",
+ .dispatch = reboot_bootloader
+ },
+ [FASTBOOT_COMMAND_SET_ACTIVE] = {
+ .command = "set_active",
+ .dispatch = okay
+ },
+};
+
+/**
+ * fastboot_handle_command - Handle fastboot command
+ *
+ * @cmd_string: Pointer to command string
+ * @response: Pointer to fastboot response buffer
+ *
+ * Return: Executed command, or -1 if not recognized
+ */
+int fastboot_handle_command(char *cmd_string, char *response)
+{
+ int i;
+ char *cmd_parameter;
+
+ cmd_parameter = cmd_string;
+ strsep(&cmd_parameter, ":");
+
+ for (i = 0; i < FASTBOOT_COMMAND_COUNT; i++) {
+ if (!strcmp(commands[i].command, cmd_string)) {
+ if (commands[i].dispatch) {
+ commands[i].dispatch(cmd_parameter,
+ response);
+ return i;
+ } else {
+ break;
+ }
+ }
+ }
+
+ pr_err("command %s not recognized.\n", cmd_string);
+ fastboot_fail("unrecognized command", response);
+ return -1;
+}
+
+/**
+ * okay() - Send bare OKAY response
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ *
+ * Send a bare OKAY fastboot response. This is used where the command is
+ * valid, but all the work is done after the response has been sent (e.g.
+ * boot, reboot etc.)
+ */
+static void okay(char *cmd_parameter, char *response)
+{
+ fastboot_okay(NULL, response);
+}
+
+/**
+ * getvar() - Read a config/version variable
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void getvar(char *cmd_parameter, char *response)
+{
+ fastboot_getvar(cmd_parameter, response);
+}
+
+/**
+ * fastboot_download() - Start a download transfer from the client
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void download(char *cmd_parameter, char *response)
+{
+ char *tmp;
+
+ if (!cmd_parameter) {
+ fastboot_fail("Expected command parameter", response);
+ return;
+ }
+ fastboot_bytes_received = 0;
+ fastboot_bytes_expected = simple_strtoul(cmd_parameter, &tmp, 16);
+ if (fastboot_bytes_expected == 0) {
+ fastboot_fail("Expected nonzero image size", response);
+ return;
+ }
+ /*
+ * Nothing to download yet. Response is of the form:
+ * [DATA|FAIL]$cmd_parameter
+ *
+ * where cmd_parameter is an 8 digit hexadecimal number
+ */
+ if (fastboot_bytes_expected > fastboot_buf_size) {
+ fastboot_fail(cmd_parameter, response);
+ } else {
+ printf("Starting download of %d bytes\n",
+ fastboot_bytes_expected);
+ fastboot_response("DATA", response, "%s", cmd_parameter);
+ }
+}
+
+/**
+ * fastboot_data_remaining() - return bytes remaining in current transfer
+ *
+ * Return: Number of bytes left in the current download
+ */
+u32 fastboot_data_remaining(void)
+{
+ return fastboot_bytes_expected - fastboot_bytes_received;
+}
+
+/**
+ * fastboot_data_download() - Copy image data to fastboot_buf_addr.
+ *
+ * @fastboot_data: Pointer to received fastboot data
+ * @fastboot_data_len: Length of received fastboot data
+ * @response: Pointer to fastboot response buffer
+ *
+ * Copies image data from fastboot_data to fastboot_buf_addr. Writes to
+ * response. fastboot_bytes_received is updated to indicate the number
+ * of bytes that have been transferred.
+ *
+ * On completion sets image_size and ${filesize} to the total size of the
+ * downloaded image.
+ */
+void fastboot_data_download(const void *fastboot_data,
+ unsigned int fastboot_data_len,
+ char *response)
+{
+#define BYTES_PER_DOT 0x20000
+ u32 pre_dot_num, now_dot_num;
+
+ if (fastboot_data_len == 0 ||
+ (fastboot_bytes_received + fastboot_data_len) >
+ fastboot_bytes_expected) {
+ fastboot_fail("Received invalid data length",
+ response);
+ return;
+ }
+ /* Download data to fastboot_buf_addr */
+ memcpy(fastboot_buf_addr + fastboot_bytes_received,
+ fastboot_data, fastboot_data_len);
+
+ pre_dot_num = fastboot_bytes_received / BYTES_PER_DOT;
+ fastboot_bytes_received += fastboot_data_len;
+ now_dot_num = fastboot_bytes_received / BYTES_PER_DOT;
+
+ if (pre_dot_num != now_dot_num) {
+ putc('.');
+ if (!(now_dot_num % 74))
+ putc('\n');
+ }
+ *response = '\0';
+}
+
+/**
+ * fastboot_data_complete() - Mark current transfer complete
+ *
+ * @response: Pointer to fastboot response buffer
+ *
+ * Set image_size and ${filesize} to the total size of the downloaded image.
+ */
+void fastboot_data_complete(char *response)
+{
+ /* Download complete. Respond with "OKAY" */
+ fastboot_okay(NULL, response);
+ printf("\ndownloading of %d bytes finished\n", fastboot_bytes_received);
+ image_size = fastboot_bytes_received;
+ env_set_hex("filesize", image_size);
+ fastboot_bytes_expected = 0;
+ fastboot_bytes_received = 0;
+}
+
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+/**
+ * flash() - write the downloaded image to the indicated partition.
+ *
+ * @cmd_parameter: Pointer to partition name
+ * @response: Pointer to fastboot response buffer
+ *
+ * Writes the previously downloaded image to the partition indicated by
+ * cmd_parameter. Writes to response.
+ */
+static void flash(char *cmd_parameter, char *response)
+{
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+ fastboot_mmc_flash_write(cmd_parameter, fastboot_buf_addr, image_size,
+ response);
+#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_NAND)
+ fastboot_nand_flash_write(cmd_parameter, fastboot_buf_addr, image_size,
+ response);
+#endif
+}
+
+/**
+ * erase() - erase the indicated partition.
+ *
+ * @cmd_parameter: Pointer to partition name
+ * @response: Pointer to fastboot response buffer
+ *
+ * Erases the partition indicated by cmd_parameter (clear to 0x00s). Writes
+ * to response.
+ */
+static void erase(char *cmd_parameter, char *response)
+{
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+ fastboot_mmc_erase(cmd_parameter, response);
+#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_NAND)
+ fastboot_nand_erase(cmd_parameter, response);
+#endif
+}
+#endif
+
+/**
+ * reboot_bootloader() - Sets reboot bootloader flag.
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void reboot_bootloader(char *cmd_parameter, char *response)
+{
+ if (fastboot_set_reboot_flag())
+ fastboot_fail("Cannot set reboot flag", response);
+ else
+ fastboot_okay(NULL, response);
+}
diff --git a/drivers/fastboot/fb_common.c b/drivers/fastboot/fb_common.c
index 79e080ac87..c6e06aab7a 100644
--- a/drivers/fastboot/fb_common.c
+++ b/drivers/fastboot/fb_common.c
@@ -12,6 +12,22 @@
#include <common.h>
#include <fastboot.h>
+#include <net/fastboot.h>
+
+/**
+ * fastboot_buf_addr - base address of the fastboot download buffer
+ */
+void *fastboot_buf_addr;
+
+/**
+ * fastboot_buf_size - size of the fastboot download buffer
+ */
+u32 fastboot_buf_size;
+
+/**
+ * fastboot_progress_callback - callback executed during long operations
+ */
+void (*fastboot_progress_callback)(const char *msg);
/**
* fastboot_response() - Writes a response of the form "$tag$reason".
@@ -74,3 +90,80 @@ int __weak fastboot_set_reboot_flag(void)
{
return -ENOSYS;
}
+
+/**
+ * fastboot_get_progress_callback() - Return progress callback
+ *
+ * Return: Pointer to function called during long operations
+ */
+void (*fastboot_get_progress_callback(void))(const char *)
+{
+ return fastboot_progress_callback;
+}
+
+/**
+ * fastboot_boot() - Execute fastboot boot command
+ *
+ * If ${fastboot_bootcmd} is set, run that command to execute the boot
+ * process, if that returns, then exit the fastboot server and return
+ * control to the caller.
+ *
+ * Otherwise execute "bootm <fastboot_buf_addr>", if that fails, reset
+ * the board.
+ */
+void fastboot_boot(void)
+{
+ char *s;
+
+ s = env_get("fastboot_bootcmd");
+ if (s) {
+ run_command(s, CMD_FLAG_ENV);
+ } else {
+ static char boot_addr_start[12];
+ static char *const bootm_args[] = {
+ "bootm", boot_addr_start, NULL
+ };
+
+ snprintf(boot_addr_start, sizeof(boot_addr_start) - 1,
+ "0x%p", fastboot_buf_addr);
+ printf("Booting kernel at %s...\n\n\n", boot_addr_start);
+
+ do_bootm(NULL, 0, 2, bootm_args);
+
+ /*
+ * This only happens if image is somehow faulty so we start
+ * over. We deliberately leave this policy to the invocation
+ * of fastbootcmd if that's what's being run
+ */
+ do_reset(NULL, 0, 0, NULL);
+ }
+}
+
+/**
+ * fastboot_set_progress_callback() - set progress callback
+ *
+ * @progress: Pointer to progress callback
+ *
+ * Set a callback which is invoked periodically during long running operations
+ * (flash and erase). This can be used (for example) by the UDP transport to
+ * send INFO responses to keep the client alive whilst those commands are
+ * executing.
+ */
+void fastboot_set_progress_callback(void (*progress)(const char *msg))
+{
+ fastboot_progress_callback = progress;
+}
+
+/*
+ * fastboot_init() - initialise new fastboot protocol session
+ *
+ * @buf_addr: Pointer to download buffer, or NULL for default
+ * @buf_size: Size of download buffer, or zero for default
+ */
+void fastboot_init(void *buf_addr, u32 buf_size)
+{
+ fastboot_buf_addr = buf_addr ? buf_addr :
+ (void *)CONFIG_FASTBOOT_BUF_ADDR;
+ fastboot_buf_size = buf_size ? buf_size : CONFIG_FASTBOOT_BUF_SIZE;
+ fastboot_set_progress_callback(NULL);
+}
diff --git a/drivers/fastboot/fb_getvar.c b/drivers/fastboot/fb_getvar.c
new file mode 100644
index 0000000000..4d264c985d
--- /dev/null
+++ b/drivers/fastboot/fb_getvar.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ */
+
+#include <common.h>
+#include <fastboot.h>
+#include <fastboot-internal.h>
+#include <fb_mmc.h>
+#include <fb_nand.h>
+#include <fs.h>
+#include <version.h>
+
+static void getvar_version(char *var_parameter, char *response);
+static void getvar_bootloader_version(char *var_parameter, char *response);
+static void getvar_downloadsize(char *var_parameter, char *response);
+static void getvar_serialno(char *var_parameter, char *response);
+static void getvar_version_baseband(char *var_parameter, char *response);
+static void getvar_product(char *var_parameter, char *response);
+static void getvar_current_slot(char *var_parameter, char *response);
+static void getvar_slot_suffixes(char *var_parameter, char *response);
+static void getvar_has_slot(char *var_parameter, char *response);
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+static void getvar_partition_type(char *part_name, char *response);
+#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+static void getvar_partition_size(char *part_name, char *response);
+#endif
+
+static const struct {
+ const char *variable;
+ void (*dispatch)(char *var_parameter, char *response);
+} getvar_dispatch[] = {
+ {
+ .variable = "version",
+ .dispatch = getvar_version
+ }, {
+ .variable = "bootloader-version",
+ .dispatch = getvar_bootloader_version
+ }, {
+ .variable = "version-bootloader",
+ .dispatch = getvar_bootloader_version
+ }, {
+ .variable = "downloadsize",
+ .dispatch = getvar_downloadsize
+ }, {
+ .variable = "max-download-size",
+ .dispatch = getvar_downloadsize
+ }, {
+ .variable = "serialno",
+ .dispatch = getvar_serialno
+ }, {
+ .variable = "version-baseband",
+ .dispatch = getvar_version_baseband
+ }, {
+ .variable = "product",
+ .dispatch = getvar_product
+ }, {
+ .variable = "current-slot",
+ .dispatch = getvar_current_slot
+ }, {
+ .variable = "slot-suffixes",
+ .dispatch = getvar_slot_suffixes
+ }, {
+ .variable = "has_slot",
+ .dispatch = getvar_has_slot
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+ }, {
+ .variable = "partition-type",
+ .dispatch = getvar_partition_type
+#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+ }, {
+ .variable = "partition-size",
+ .dispatch = getvar_partition_size
+#endif
+ }
+};
+
+static void getvar_version(char *var_parameter, char *response)
+{
+ fastboot_okay(FASTBOOT_VERSION, response);
+}
+
+static void getvar_bootloader_version(char *var_parameter, char *response)
+{
+ fastboot_okay(U_BOOT_VERSION, response);
+}
+
+static void getvar_downloadsize(char *var_parameter, char *response)
+{
+ fastboot_response("OKAY", response, "0x%08x", fastboot_buf_size);
+}
+
+static void getvar_serialno(char *var_parameter, char *response)
+{
+ const char *tmp = env_get("serial#");
+
+ if (tmp)
+ fastboot_okay(tmp, response);
+ else
+ fastboot_fail("Value not set", response);
+}
+
+static void getvar_version_baseband(char *var_parameter, char *response)
+{
+ fastboot_okay("N/A", response);
+}
+
+static void getvar_product(char *var_parameter, char *response)
+{
+ const char *board = env_get("board");
+
+ if (board)
+ fastboot_okay(board, response);
+ else
+ fastboot_fail("Board not set", response);
+}
+
+static void getvar_current_slot(char *var_parameter, char *response)
+{
+ /* A/B not implemented, for now always return _a */
+ fastboot_okay("_a", response);
+}
+
+static void getvar_slot_suffixes(char *var_parameter, char *response)
+{
+ fastboot_okay("_a,_b", response);
+}
+
+static void getvar_has_slot(char *part_name, char *response)
+{
+ if (part_name && (!strcmp(part_name, "boot") ||
+ !strcmp(part_name, "system")))
+ fastboot_okay("yes", response);
+ else
+ fastboot_okay("no", response);
+}
+
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+static void getvar_partition_type(char *part_name, char *response)
+{
+ int r;
+ struct blk_desc *dev_desc;
+ disk_partition_t part_info;
+
+ r = fastboot_mmc_get_part_info(part_name, &dev_desc, &part_info,
+ response);
+ if (r >= 0) {
+ r = fs_set_blk_dev_with_part(dev_desc, r);
+ if (r < 0)
+ fastboot_fail("failed to set partition", response);
+ else
+ fastboot_okay(fs_get_type_name(), response);
+ }
+}
+#endif
+
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+static void getvar_partition_size(char *part_name, char *response)
+{
+ int r;
+ size_t size;
+
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_MMC)
+ struct blk_desc *dev_desc;
+ disk_partition_t part_info;
+
+ r = fastboot_mmc_get_part_info(part_name, &dev_desc, &part_info,
+ response);
+ if (r >= 0)
+ size = part_info.size;
+#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH_NAND)
+ struct part_info *part_info;
+
+ r = fastboot_nand_get_part_info(part_name, &part_info, response);
+ if (r >= 0)
+ size = part_info->size;
+#endif
+ if (r >= 0)
+ fastboot_response("OKAY", response, "0x%016zx", size);
+}
+#endif
+
+/**
+ * fastboot_getvar() - Writes variable indicated by cmd_parameter to response.
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ *
+ * Look up cmd_parameter first as an environment variable of the form
+ * fastboot.<cmd_parameter>, if that exists return use its value to set
+ * response.
+ *
+ * Otherwise lookup the name of variable and execute the appropriate
+ * function to return the requested value.
+ */
+void fastboot_getvar(char *cmd_parameter, char *response)
+{
+ if (!cmd_parameter) {
+ fastboot_fail("missing var", response);
+ } else {
+#define FASTBOOT_ENV_PREFIX "fastboot."
+ int i;
+ char *var_parameter = cmd_parameter;
+ char envstr[FASTBOOT_RESPONSE_LEN];
+ const char *s;
+
+ snprintf(envstr, sizeof(envstr) - 1,
+ FASTBOOT_ENV_PREFIX "%s", cmd_parameter);
+ s = env_get(envstr);
+ if (s) {
+ fastboot_response("OKAY", response, "%s", s);
+ return;
+ }
+
+ strsep(&var_parameter, ":");
+ for (i = 0; i < ARRAY_SIZE(getvar_dispatch); ++i) {
+ if (!strcmp(getvar_dispatch[i].variable,
+ cmd_parameter)) {
+ getvar_dispatch[i].dispatch(var_parameter,
+ response);
+ return;
+ }
+ }
+ pr_warn("WARNING: unknown variable: %s\n", cmd_parameter);
+ fastboot_fail("Variable not implemented", response);
+ }
+}
diff --git a/drivers/fastboot/fb_mmc.c b/drivers/fastboot/fb_mmc.c
index 47fcf74b69..4c1c7fd2cd 100644
--- a/drivers/fastboot/fb_mmc.c
+++ b/drivers/fastboot/fb_mmc.c
@@ -7,6 +7,7 @@
#include <common.h>
#include <blk.h>
#include <fastboot.h>
+#include <fastboot-internal.h>
#include <fb_mmc.h>
#include <image-sparse.h>
#include <part.h>
@@ -15,6 +16,8 @@
#include <linux/compat.h>
#include <android_image.h>
+#define FASTBOOT_MAX_BLK_WRITE 16384
+
#define BOOT_PARTITION_NAME "boot"
struct fb_mmc_sparse {
@@ -43,13 +46,48 @@ static int part_get_info_by_name_or_alias(struct blk_desc *dev_desc,
return ret;
}
+/**
+ * fb_mmc_blk_write() - Write/erase MMC in chunks of FASTBOOT_MAX_BLK_WRITE
+ *
+ * @block_dev: Pointer to block device
+ * @start: First block to write/erase
+ * @blkcnt: Count of blocks
+ * @buffer: Pointer to data buffer for write or NULL for erase
+ */
+static lbaint_t fb_mmc_blk_write(struct blk_desc *block_dev, lbaint_t start,
+ lbaint_t blkcnt, const void *buffer)
+{
+ lbaint_t blk = start;
+ lbaint_t blks_written;
+ lbaint_t cur_blkcnt;
+ lbaint_t blks = 0;
+ int i;
+
+ for (i = 0; i < blkcnt; i += FASTBOOT_MAX_BLK_WRITE) {
+ cur_blkcnt = min((int)blkcnt - i, FASTBOOT_MAX_BLK_WRITE);
+ if (buffer) {
+ if (fastboot_progress_callback)
+ fastboot_progress_callback("writing");
+ blks_written = blk_dwrite(block_dev, blk, cur_blkcnt,
+ buffer + (i * block_dev->blksz));
+ } else {
+ if (fastboot_progress_callback)
+ fastboot_progress_callback("erasing");
+ blks_written = blk_derase(block_dev, blk, cur_blkcnt);
+ }
+ blk += blks_written;
+ blks += blks_written;
+ }
+ return blks;
+}
+
static lbaint_t fb_mmc_sparse_write(struct sparse_storage *info,
lbaint_t blk, lbaint_t blkcnt, const void *buffer)
{
struct fb_mmc_sparse *sparse = info->priv;
struct blk_desc *dev_desc = sparse->dev_desc;
- return blk_dwrite(dev_desc, blk, blkcnt, buffer);
+ return fb_mmc_blk_write(dev_desc, blk, blkcnt, buffer);
}
static lbaint_t fb_mmc_sparse_reserve(struct sparse_storage *info,
@@ -60,7 +98,7 @@ static lbaint_t fb_mmc_sparse_reserve(struct sparse_storage *info,
static void write_raw_image(struct blk_desc *dev_desc, disk_partition_t *info,
const char *part_name, void *buffer,
- unsigned int download_bytes, char *response)
+ u32 download_bytes, char *response)
{
lbaint_t blkcnt;
lbaint_t blks;
@@ -77,7 +115,8 @@ static void write_raw_image(struct blk_desc *dev_desc, disk_partition_t *info,
puts("Flashing Raw Image\n");
- blks = blk_dwrite(dev_desc, info->start, blkcnt, buffer);
+ blks = fb_mmc_blk_write(dev_desc, info->start, blkcnt, buffer);
+
if (blks != blkcnt) {
pr_err("failed writing to device %d\n", dev_desc->devnum);
fastboot_fail("failed writing to device", response);
@@ -148,7 +187,7 @@ static lbaint_t fb_mmc_get_boot_header(struct blk_desc *dev_desc,
*/
static int fb_mmc_update_zimage(struct blk_desc *dev_desc,
void *download_buffer,
- unsigned int download_bytes,
+ u32 download_bytes,
char *response)
{
uintptr_t hdr_addr; /* boot image header address */
@@ -251,6 +290,38 @@ static int fb_mmc_update_zimage(struct blk_desc *dev_desc,
}
#endif
+/**
+ * fastboot_mmc_get_part_info() - Lookup eMMC partion by name
+ *
+ * @part_name: Named partition to lookup
+ * @dev_desc: Pointer to returned blk_desc pointer
+ * @part_info: Pointer to returned disk_partition_t
+ * @response: Pointer to fastboot response buffer
+ */
+int fastboot_mmc_get_part_info(char *part_name, struct blk_desc **dev_desc,
+ disk_partition_t *part_info, char *response)
+{
+ int r;
+
+ *dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
+ if (!*dev_desc) {
+ fastboot_fail("block device not found", response);
+ return -ENOENT;
+ }
+ if (!part_name) {
+ fastboot_fail("partition not found", response);
+ return -ENOENT;
+ }
+
+ r = part_get_info_by_name_or_alias(*dev_desc, part_name, part_info);
+ if (r < 0) {
+ fastboot_fail("partition not found", response);
+ return r;
+ }
+
+ return r;
+}
+
/**
* fastboot_mmc_flash_write() - Write image to eMMC for fastboot
*
@@ -260,7 +331,7 @@ static int fb_mmc_update_zimage(struct blk_desc *dev_desc,
* @response: Pointer to fastboot response buffer
*/
void fastboot_mmc_flash_write(const char *cmd, void *download_buffer,
- unsigned int download_bytes, char *response)
+ u32 download_bytes, char *response)
{
struct blk_desc *dev_desc;
disk_partition_t info;
@@ -403,7 +474,8 @@ void fastboot_mmc_erase(const char *cmd, char *response)
printf("Erasing blocks " LBAFU " to " LBAFU " due to alignment\n",
blks_start, blks_start + blks_size);
- blks = blk_derase(dev_desc, blks_start, blks_size);
+ blks = fb_mmc_blk_write(dev_desc, blks_start, blks_size, NULL);
+
if (blks != blks_size) {
pr_err("failed erasing from device %d\n", dev_desc->devnum);
fastboot_fail("failed erasing from device", response);
diff --git a/drivers/fastboot/fb_nand.c b/drivers/fastboot/fb_nand.c
index 535f541eb8..526bc12307 100644
--- a/drivers/fastboot/fb_nand.c
+++ b/drivers/fastboot/fb_nand.c
@@ -88,7 +88,7 @@ static int _fb_nand_erase(struct mtd_info *mtd, struct part_info *part)
}
static int _fb_nand_write(struct mtd_info *mtd, struct part_info *part,
- void *buffer, unsigned int offset,
+ void *buffer, u32 offset,
size_t length, size_t *written)
{
int flags = WITH_WR_VERIFY;
@@ -145,6 +145,21 @@ static lbaint_t fb_nand_sparse_reserve(struct sparse_storage *info,
return blkcnt + bad_blocks;
}
+/**
+ * fastboot_nand_get_part_info() - Lookup NAND partion by name
+ *
+ * @part_name: Named device to lookup
+ * @part_info: Pointer to returned part_info pointer
+ * @response: Pointer to fastboot response buffer
+ */
+int fastboot_nand_get_part_info(char *part_name, struct part_info **part_info,
+ char *response)
+{
+ struct mtd_info *mtd = NULL;
+
+ return fb_nand_lookup(part_name, &mtd, part_info, response);
+}
+
/**
* fastboot_nand_flash_write() - Write image to NAND for fastboot
*
@@ -154,7 +169,7 @@ static lbaint_t fb_nand_sparse_reserve(struct sparse_storage *info,
* @response: Pointer to fastboot response buffer
*/
void fastboot_nand_flash_write(const char *cmd, void *download_buffer,
- unsigned int download_bytes, char *response)
+ u32 download_bytes, char *response)
{
struct part_info *part;
struct mtd_info *mtd = NULL;
diff --git a/include/fastboot-internal.h b/include/fastboot-internal.h
new file mode 100644
index 0000000000..bf2f2b3c89
--- /dev/null
+++ b/include/fastboot-internal.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _FASTBOOT_INTERNAL_H_
+#define _FASTBOOT_INTERNAL_H_
+
+/**
+ * fastboot_buf_addr - base address of the fastboot download buffer
+ */
+extern void *fastboot_buf_addr;
+
+/**
+ * fastboot_buf_size - size of the fastboot download buffer
+ */
+extern u32 fastboot_buf_size;
+
+/**
+ * fastboot_progress_callback - callback executed during long operations
+ */
+extern void (*fastboot_progress_callback)(const char *msg);
+
+/**
+ * fastboot_getvar() - Writes variable indicated by cmd_parameter to response.
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ *
+ * Look up cmd_parameter first as an environment variable of the form
+ * fastboot.<cmd_parameter>, if that exists return use its value to set
+ * response.
+ *
+ * Otherwise lookup the name of variable and execute the appropriate
+ * function to return the requested value.
+ */
+void fastboot_getvar(char *cmd_parameter, char *response);
+
+#endif
diff --git a/include/fastboot.h b/include/fastboot.h
index bf3d9e2f67..9a3d5ba693 100644
--- a/include/fastboot.h
+++ b/include/fastboot.h
@@ -15,8 +15,28 @@
#define FASTBOOT_VERSION "0.4"
/* The 64 defined bytes plus \0 */
+#define FASTBOOT_COMMAND_LEN (64 + 1)
#define FASTBOOT_RESPONSE_LEN (64 + 1)
+/**
+ * All known commands to fastboot
+ */
+enum {
+ FASTBOOT_COMMAND_GETVAR = 0,
+ FASTBOOT_COMMAND_DOWNLOAD,
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+ FASTBOOT_COMMAND_FLASH,
+ FASTBOOT_COMMAND_ERASE,
+#endif
+ FASTBOOT_COMMAND_BOOT,
+ FASTBOOT_COMMAND_CONTINUE,
+ FASTBOOT_COMMAND_REBOOT,
+ FASTBOOT_COMMAND_REBOOT_BOOTLOADER,
+ FASTBOOT_COMMAND_SET_ACTIVE,
+
+ FASTBOOT_COMMAND_COUNT
+};
+
/**
* fastboot_response() - Writes a response of the form "$tag$reason".
*
@@ -43,5 +63,89 @@ void fastboot_fail(const char *reason, char *response);
* @response: Pointer to fastboot response buffer
*/
void fastboot_okay(const char *reason, char *response);
+
+/**
+ * fastboot_set_reboot_flag() - Set flag to indicate reboot-bootloader
+ *
+ * Set flag which indicates that we should reboot into the bootloader
+ * following the reboot that fastboot executes after this function.
+ *
+ * This function should be overridden in your board file with one
+ * which sets whatever flag your board specific Android bootloader flow
+ * requires in order to re-enter the bootloader.
+ */
int fastboot_set_reboot_flag(void);
+
+/**
+ * fastboot_set_progress_callback() - set progress callback
+ *
+ * @progress: Pointer to progress callback
+ *
+ * Set a callback which is invoked periodically during long running operations
+ * (flash and erase). This can be used (for example) by the UDP transport to
+ * send INFO responses to keep the client alive whilst those commands are
+ * executing.
+ */
+void fastboot_set_progress_callback(void (*progress)(const char *msg));
+
+/*
+ * fastboot_init() - initialise new fastboot protocol session
+ *
+ * @buf_addr: Pointer to download buffer, or NULL for default
+ * @buf_size: Size of download buffer, or zero for default
+ */
+void fastboot_init(void *buf_addr, u32 buf_size);
+
+/**
+ * fastboot_boot() - Execute fastboot boot command
+ *
+ * If ${fastboot_bootcmd} is set, run that command to execute the boot
+ * process, if that returns, then exit the fastboot server and return
+ * control to the caller.
+ *
+ * Otherwise execute "bootm <fastboot_buf_addr>", if that fails, reset
+ * the board.
+ */
+void fastboot_boot(void);
+
+/**
+ * fastboot_handle_command() - Handle fastboot command
+ *
+ * @cmd_string: Pointer to command string
+ * @response: Pointer to fastboot response buffer
+ *
+ * Return: Executed command, or -1 if not recognized
+ */
+int fastboot_handle_command(char *cmd_string, char *response);
+
+/**
+ * fastboot_data_remaining() - return bytes remaining in current transfer
+ *
+ * Return: Number of bytes left in the current download
+ */
+u32 fastboot_data_remaining(void);
+
+/**
+ * fastboot_data_download() - Copy image data to fastboot_buf_addr.
+ *
+ * @fastboot_data: Pointer to received fastboot data
+ * @fastboot_data_len: Length of received fastboot data
+ * @response: Pointer to fastboot response buffer
+ *
+ * Copies image data from fastboot_data to fastboot_buf_addr. Writes to
+ * response. fastboot_bytes_received is updated to indicate the number
+ * of bytes that have been transferred.
+ */
+void fastboot_data_download(const void *fastboot_data,
+ unsigned int fastboot_data_len, char *response);
+
+/**
+ * fastboot_data_complete() - Mark current transfer complete
+ *
+ * @response: Pointer to fastboot response buffer
+ *
+ * Set image_size and ${filesize} to the total size of the downloaded image.
+ */
+void fastboot_data_complete(char *response);
+
#endif /* _FASTBOOT_H_ */
diff --git a/include/fb_mmc.h b/include/fb_mmc.h
index daca81a201..fd5db9eac8 100644
--- a/include/fb_mmc.h
+++ b/include/fb_mmc.h
@@ -3,6 +3,20 @@
* Copyright 2014 Broadcom Corporation.
*/
+#ifndef _FB_MMC_H_
+#define _FB_MMC_H_
+
+/**
+ * fastboot_mmc_get_part_info() - Lookup eMMC partion by name
+ *
+ * @part_name: Named partition to lookup
+ * @dev_desc: Pointer to returned blk_desc pointer
+ * @part_info: Pointer to returned disk_partition_t
+ * @response: Pointer to fastboot response buffer
+ */
+int fastboot_mmc_get_part_info(char *part_name, struct blk_desc **dev_desc,
+ disk_partition_t *part_info, char *response);
+
/**
* fastboot_mmc_flash_write() - Write image to eMMC for fastboot
*
@@ -12,8 +26,7 @@
* @response: Pointer to fastboot response buffer
*/
void fastboot_mmc_flash_write(const char *cmd, void *download_buffer,
- unsigned int download_bytes, char *response);
-
+ u32 download_bytes, char *response);
/**
* fastboot_mmc_flash_erase() - Erase eMMC for fastboot
*
@@ -21,3 +34,4 @@ void fastboot_mmc_flash_write(const char *cmd, void *download_buffer,
* @response: Pointer to fastboot response buffer
*/
void fastboot_mmc_erase(const char *cmd, char *response);
+#endif
diff --git a/include/fb_nand.h b/include/fb_nand.h
index b5d4c0cc5f..08ab0e28a6 100644
--- a/include/fb_nand.h
+++ b/include/fb_nand.h
@@ -4,6 +4,21 @@
* Copyright 2015 Free Electrons.
*/
+#ifndef _FB_NAND_H_
+#define _FB_NAND_H_
+
+#include <jffs2/load_kernel.h>
+
+/**
+ * fastboot_nand_get_part_info() - Lookup NAND partion by name
+ *
+ * @part_name: Named device to lookup
+ * @part_info: Pointer to returned part_info pointer
+ * @response: Pointer to fastboot response buffer
+ */
+int fastboot_nand_get_part_info(char *part_name, struct part_info **part_info,
+ char *response);
+
/**
* fastboot_nand_flash_write() - Write image to NAND for fastboot
*
@@ -13,7 +28,8 @@
* @response: Pointer to fastboot response buffer
*/
void fastboot_nand_flash_write(const char *cmd, void *download_buffer,
- unsigned int download_bytes, char *response);
+ u32 download_bytes, char *response);
+
/**
* fastboot_nand_flash_erase() - Erase NAND for fastboot
*
@@ -21,3 +37,4 @@ void fastboot_nand_flash_write(const char *cmd, void *download_buffer,
* @response: Pointer to fastboot response buffer
*/
void fastboot_nand_erase(const char *cmd, char *response);
+#endif
diff --git a/include/net.h b/include/net.h
index 65f51d77a5..5760685556 100644
--- a/include/net.h
+++ b/include/net.h
@@ -535,7 +535,7 @@ extern int net_restart_wrap; /* Tried all network devices */
enum proto_t {
BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
- TFTPSRV, TFTPPUT, LINKLOCAL
+ TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT
};
extern char net_boot_file_name[1024];/* Boot File name */
diff --git a/include/net/fastboot.h b/include/net/fastboot.h
new file mode 100644
index 0000000000..68602095d2
--- /dev/null
+++ b/include/net/fastboot.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2016 The Android Open Source Project
+ */
+
+#ifndef __NET_FASTBOOT_H__
+#define __NET_FASTBOOT_H__
+
+/**********************************************************************/
+/*
+ * Global functions and variables.
+ */
+
+/**
+ * Wait for incoming fastboot comands.
+ */
+void fastboot_start_server(void);
+
+/**********************************************************************/
+
+#endif /* __NET_FASTBOOT_H__ */
diff --git a/net/Makefile b/net/Makefile
index d1e8e01f62..07466879f5 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_CMD_PING) += ping.o
obj-$(CONFIG_CMD_RARP) += rarp.o
obj-$(CONFIG_CMD_SNTP) += sntp.o
obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o
+obj-$(CONFIG_UDP_FUNCTION_FASTBOOT) += fastboot.o
# Disable this warning as it is triggered by:
# sprintf(buf, index ? "foo%d" : "foo", index)
diff --git a/net/fastboot.c b/net/fastboot.c
new file mode 100644
index 0000000000..a9f7c0743d
--- /dev/null
+++ b/net/fastboot.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ */
+
+#include <common.h>
+#include <fastboot.h>
+#include <net.h>
+#include <net/fastboot.h>
+
+/* Fastboot port # defined in spec */
+#define WELL_KNOWN_PORT 5554
+
+enum {
+ FASTBOOT_ERROR = 0,
+ FASTBOOT_QUERY = 1,
+ FASTBOOT_INIT = 2,
+ FASTBOOT_FASTBOOT = 3,
+};
+
+struct __packed fastboot_header {
+ uchar id;
+ uchar flags;
+ unsigned short seq;
+};
+
+#define PACKET_SIZE 1024
+#define DATA_SIZE (PACKET_SIZE - sizeof(struct fastboot_header))
+
+/* Sequence number sent for every packet */
+static unsigned short sequence_number = 1;
+static const unsigned short packet_size = PACKET_SIZE;
+static const unsigned short udp_version = 1;
+
+/* Keep track of last packet for resubmission */
+static uchar last_packet[PACKET_SIZE];
+static unsigned int last_packet_len;
+
+static struct in_addr fastboot_remote_ip;
+/* The UDP port at their end */
+static int fastboot_remote_port;
+/* The UDP port at our end */
+static int fastboot_our_port;
+
+static void boot_downloaded_image(void);
+
+#if CONFIG_IS_ENABLED(FASTBOOT_FLASH)
+/**
+ * fastboot_udp_send_info() - Send an INFO packet during long commands.
+ *
+ * @msg: String describing the reason for waiting
+ */
+static void fastboot_udp_send_info(const char *msg)
+{
+ uchar *packet;
+ uchar *packet_base;
+ int len = 0;
+ char response[FASTBOOT_RESPONSE_LEN] = {0};
+
+ struct fastboot_header response_header = {
+ .id = FASTBOOT_FASTBOOT,
+ .flags = 0,
+ .seq = htons(sequence_number)
+ };
+ ++sequence_number;
+ packet = net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE;
+ packet_base = packet;
+
+ /* Write headers */
+ memcpy(packet, &response_header, sizeof(response_header));
+ packet += sizeof(response_header);
+ /* Write response */
+ fastboot_response("INFO", response, "%s", msg);
+ memcpy(packet, response, strlen(response));
+ packet += strlen(response);
+
+ len = packet - packet_base;
+
+ /* Save packet for retransmitting */
+ last_packet_len = len;
+ memcpy(last_packet, packet_base, last_packet_len);
+
+ net_send_udp_packet(net_server_ethaddr, fastboot_remote_ip,
+ fastboot_remote_port, fastboot_our_port, len);
+}
+
+/**
+ * fastboot_timed_send_info() - Send INFO packet every 30 seconds
+ *
+ * @msg: String describing the reason for waiting
+ *
+ * Send an INFO packet during long commands based on timer. An INFO packet
+ * is sent if the time is 30 seconds after start. Else, noop.
+ */
+static void fastboot_timed_send_info(const char *msg)
+{
+ static ulong start;
+
+ /* Initialize timer */
+ if (start == 0)
+ start = get_timer(0);
+ ulong time = get_timer(start);
+ /* Send INFO packet to host every 30 seconds */
+ if (time >= 30000) {
+ start = get_timer(0);
+ fastboot_udp_send_info(msg);
+ }
+}
+#endif
+
+/**
+ * fastboot_send() - Sends a packet in response to received fastboot packet
+ *
+ * @header: Header for response packet
+ * @fastboot_data: Pointer to received fastboot data
+ * @fastboot_data_len: Length of received fastboot data
+ * @retransmit: Nonzero if sending last sent packet
+ */
+static void fastboot_send(struct fastboot_header header, char *fastboot_data,
+ unsigned int fastboot_data_len, uchar retransmit)
+{
+ uchar *packet;
+ uchar *packet_base;
+ int len = 0;
+ const char *error_msg = "An error occurred.";
+ short tmp;
+ struct fastboot_header response_header = header;
+ static char command[FASTBOOT_COMMAND_LEN];
+ static int cmd = -1;
+ static bool pending_command;
+ char response[FASTBOOT_RESPONSE_LEN] = {0};
+
+ /*
+ * We will always be sending some sort of packet, so
+ * cobble together the packet headers now.
+ */
+ packet = net_tx_packet + net_eth_hdr_size() + IP_UDP_HDR_SIZE;
+ packet_base = packet;
+
+ /* Resend last packet */
+ if (retransmit) {
+ memcpy(packet, last_packet, last_packet_len);
+ net_send_udp_packet(net_server_ethaddr, fastboot_remote_ip,
+ fastboot_remote_port, fastboot_our_port,
+ last_packet_len);
+ return;
+ }
+
+ response_header.seq = htons(response_header.seq);
+ memcpy(packet, &response_header, sizeof(response_header));
+ packet += sizeof(response_header);
+
+ switch (header.id) {
+ case FASTBOOT_QUERY:
+ tmp = htons(sequence_number);
+ memcpy(packet, &tmp, sizeof(tmp));
+ packet += sizeof(tmp);
+ break;
+ case FASTBOOT_INIT:
+ tmp = htons(udp_version);
+ memcpy(packet, &tmp, sizeof(tmp));
+ packet += sizeof(tmp);
+ tmp = htons(packet_size);
+ memcpy(packet, &tmp, sizeof(tmp));
+ packet += sizeof(tmp);
+ break;
+ case FASTBOOT_ERROR:
+ memcpy(packet, error_msg, strlen(error_msg));
+ packet += strlen(error_msg);
+ break;
+ case FASTBOOT_FASTBOOT:
+ if (cmd == FASTBOOT_COMMAND_DOWNLOAD) {
+ if (!fastboot_data_len && !fastboot_data_remaining()) {
+ fastboot_data_complete(response);
+ } else {
+ fastboot_data_download(fastboot_data,
+ fastboot_data_len,
+ response);
+ }
+ } else if (!pending_command) {
+ strlcpy(command, fastboot_data,
+ min((size_t)fastboot_data_len + 1,
+ sizeof(command)));
+ pending_command = true;
+ } else {
+ cmd = fastboot_handle_command(command, response);
+ pending_command = false;
+ }
+ /*
+ * Sent some INFO packets, need to update sequence number in
+ * header
+ */
+ if (header.seq != sequence_number) {
+ response_header.seq = htons(sequence_number);
+ memcpy(packet_base, &response_header,
+ sizeof(response_header));
+ }
+ /* Write response to packet */
+ memcpy(packet, response, strlen(response));
+ packet += strlen(response);
+ break;
+ default:
+ pr_err("ID %d not implemented.\n", header.id);
+ return;
+ }
+
+ len = packet - packet_base;
+
+ /* Save packet for retransmitting */
+ last_packet_len = len;
+ memcpy(last_packet, packet_base, last_packet_len);
+
+ net_send_udp_packet(net_server_ethaddr, fastboot_remote_ip,
+ fastboot_remote_port, fastboot_our_port, len);
+
+ /* Continue boot process after sending response */
+ if (!strncmp("OKAY", response, 4)) {
+ switch (cmd) {
+ case FASTBOOT_COMMAND_BOOT:
+ boot_downloaded_image();
+ break;
+
+ case FASTBOOT_COMMAND_CONTINUE:
+ net_set_state(NETLOOP_SUCCESS);
+ break;
+
+ case FASTBOOT_COMMAND_REBOOT:
+ case FASTBOOT_COMMAND_REBOOT_BOOTLOADER:
+ do_reset(NULL, 0, 0, NULL);
+ break;
+ }
+ }
+
+ if (!strncmp("OKAY", response, 4) || !strncmp("FAIL", response, 4))
+ cmd = -1;
+}
+
+/**
+ * boot_downloaded_image() - Boots into downloaded image.
+ */
+static void boot_downloaded_image(void)
+{
+ fastboot_boot();
+ net_set_state(NETLOOP_SUCCESS);
+}
+
+/**
+ * fastboot_handler() - Incoming UDP packet handler.
+ *
+ * @packet: Pointer to incoming UDP packet
+ * @dport: Destination UDP port
+ * @sip: Source IP address
+ * @sport: Source UDP port
+ * @len: Packet length
+ */
+static void fastboot_handler(uchar *packet, unsigned int dport,
+ struct in_addr sip, unsigned int sport,
+ unsigned int len)
+{
+ struct fastboot_header header;
+ char fastboot_data[DATA_SIZE] = {0};
+ unsigned int fastboot_data_len = 0;
+
+ if (dport != fastboot_our_port)
+ return;
+
+ fastboot_remote_ip = sip;
+ fastboot_remote_port = sport;
+
+ if (len < sizeof(struct fastboot_header) || len > PACKET_SIZE)
+ return;
+ memcpy(&header, packet, sizeof(header));
+ header.flags = 0;
+ header.seq = ntohs(header.seq);
+ packet += sizeof(header);
+ len -= sizeof(header);
+
+ switch (header.id) {
+ case FASTBOOT_QUERY:
+ fastboot_send(header, fastboot_data, 0, 0);
+ break;
+ case FASTBOOT_INIT:
+ case FASTBOOT_FASTBOOT:
+ fastboot_data_len = len;
+ if (len > 0)
+ memcpy(fastboot_data, packet, len);
+ if (header.seq == sequence_number) {
+ fastboot_send(header, fastboot_data,
+ fastboot_data_len, 0);
+ sequence_number++;
+ } else if (header.seq == sequence_number - 1) {
+ /* Retransmit last sent packet */
+ fastboot_send(header, fastboot_data,
+ fastboot_data_len, 1);
+ }
+ break;
+ default:
+ pr_err("ID %d not implemented.\n", header.id);
+ header.id = FASTBOOT_ERROR;
+ fastboot_send(header, fastboot_data, 0, 0);
+ break;
+ }
+}
+
+void fastboot_start_server(void)
+{
+ printf("Using %s device\n", eth_get_name());
+ printf("Listening for fastboot command on %pI4\n", &net_ip);
+
+ fastboot_our_port = WELL_KNOWN_PORT;
+
+ fastboot_set_progress_callback(fastboot_timed_send_info);
+ net_set_udp_handler(fastboot_handler);
+
+ /* zero out server ether in case the server ip has changed */
+ memset(net_server_ethaddr, 0, 6);
+}
diff --git a/net/net.c b/net/net.c
index 7f85211442..a4932f46d9 100644
--- a/net/net.c
+++ b/net/net.c
@@ -87,6 +87,7 @@
#include <environment.h>
#include <errno.h>
#include <net.h>
+#include <net/fastboot.h>
#include <net/tftp.h>
#if defined(CONFIG_LED_STATUS)
#include <miiphy.h>
@@ -451,6 +452,11 @@ restart:
tftp_start_server();
break;
#endif
+#ifdef CONFIG_UDP_FUNCTION_FASTBOOT
+ case FASTBOOT:
+ fastboot_start_server();
+ break;
+#endif
#if defined(CONFIG_CMD_DHCP)
case DHCP:
bootp_reset();
@@ -1322,6 +1328,7 @@ common:
/* Fall through */
case NETCONS:
+ case FASTBOOT:
case TFTPSRV:
if (net_ip.s_addr == 0) {
puts("*** ERROR: `ipaddr' not set\n");
--
2.17.0
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