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![Simon Glass](/assets/img/avatar_default.png)
Move env_get() over to the new header file. Acked-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Simon Glass <sjg@chromium.org>
171 lines
4.4 KiB
C
171 lines
4.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2008 - 2009
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* Windriver, <www.windriver.com>
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* Tom Rix <Tom.Rix@windriver.com>
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*
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* Copyright 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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*
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* Copyright 2014 Linaro, Ltd.
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* Rob Herring <robh@kernel.org>
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*/
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#include <common.h>
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#include <env.h>
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#include <fastboot.h>
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#include <net/fastboot.h>
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/**
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* fastboot_buf_addr - base address of the fastboot download buffer
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*/
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void *fastboot_buf_addr;
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/**
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* fastboot_buf_size - size of the fastboot download buffer
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*/
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u32 fastboot_buf_size;
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/**
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* fastboot_progress_callback - callback executed during long operations
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*/
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void (*fastboot_progress_callback)(const char *msg);
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/**
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* fastboot_response() - Writes a response of the form "$tag$reason".
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*
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* @tag: The first part of the response
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* @response: Pointer to fastboot response buffer
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* @format: printf style format string
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*/
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void fastboot_response(const char *tag, char *response,
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const char *format, ...)
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{
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va_list args;
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strlcpy(response, tag, FASTBOOT_RESPONSE_LEN);
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if (format) {
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va_start(args, format);
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vsnprintf(response + strlen(response),
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FASTBOOT_RESPONSE_LEN - strlen(response) - 1,
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format, args);
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va_end(args);
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}
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}
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/**
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* fastboot_fail() - Write a FAIL response of the form "FAIL$reason".
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*
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* @reason: Pointer to returned reason string
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* @response: Pointer to fastboot response buffer
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*/
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void fastboot_fail(const char *reason, char *response)
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{
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fastboot_response("FAIL", response, "%s", reason);
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}
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/**
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* fastboot_okay() - Write an OKAY response of the form "OKAY$reason".
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*
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* @reason: Pointer to returned reason string, or NULL to send a bare "OKAY"
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* @response: Pointer to fastboot response buffer
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*/
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void fastboot_okay(const char *reason, char *response)
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{
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if (reason)
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fastboot_response("OKAY", response, "%s", reason);
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else
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fastboot_response("OKAY", response, NULL);
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}
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/**
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* fastboot_set_reboot_flag() - Set flag to indicate reboot-bootloader
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*
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* Set flag which indicates that we should reboot into the bootloader
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* following the reboot that fastboot executes after this function.
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*
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* This function should be overridden in your board file with one
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* which sets whatever flag your board specific Android bootloader flow
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* requires in order to re-enter the bootloader.
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*/
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int __weak fastboot_set_reboot_flag(void)
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{
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return -ENOSYS;
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}
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/**
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* fastboot_get_progress_callback() - Return progress callback
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*
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* Return: Pointer to function called during long operations
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*/
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void (*fastboot_get_progress_callback(void))(const char *)
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{
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return fastboot_progress_callback;
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}
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/**
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* fastboot_boot() - Execute fastboot boot command
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*
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* If ${fastboot_bootcmd} is set, run that command to execute the boot
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* process, if that returns, then exit the fastboot server and return
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* control to the caller.
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*
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* Otherwise execute "bootm <fastboot_buf_addr>", if that fails, reset
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* the board.
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*/
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void fastboot_boot(void)
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{
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char *s;
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s = env_get("fastboot_bootcmd");
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if (s) {
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run_command(s, CMD_FLAG_ENV);
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} else {
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static char boot_addr_start[20];
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static char *const bootm_args[] = {
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"bootm", boot_addr_start, NULL
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};
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snprintf(boot_addr_start, sizeof(boot_addr_start) - 1,
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"0x%p", fastboot_buf_addr);
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printf("Booting kernel at %s...\n\n\n", boot_addr_start);
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do_bootm(NULL, 0, 2, bootm_args);
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/*
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* This only happens if image is somehow faulty so we start
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* over. We deliberately leave this policy to the invocation
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* of fastbootcmd if that's what's being run
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*/
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do_reset(NULL, 0, 0, NULL);
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}
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}
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/**
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* fastboot_set_progress_callback() - set progress callback
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*
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* @progress: Pointer to progress callback
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*
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* Set a callback which is invoked periodically during long running operations
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* (flash and erase). This can be used (for example) by the UDP transport to
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* send INFO responses to keep the client alive whilst those commands are
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* executing.
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*/
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void fastboot_set_progress_callback(void (*progress)(const char *msg))
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{
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fastboot_progress_callback = progress;
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}
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/*
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* fastboot_init() - initialise new fastboot protocol session
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*
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* @buf_addr: Pointer to download buffer, or NULL for default
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* @buf_size: Size of download buffer, or zero for default
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*/
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void fastboot_init(void *buf_addr, u32 buf_size)
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{
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fastboot_buf_addr = buf_addr ? buf_addr :
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(void *)CONFIG_FASTBOOT_BUF_ADDR;
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fastboot_buf_size = buf_size ? buf_size : CONFIG_FASTBOOT_BUF_SIZE;
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fastboot_set_progress_callback(NULL);
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}
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