69891885b7
Add a new event that is triggered in main_loop() before autoboot_command(). This allows platform code to provide a custom bootcmd string via the event system. The event uses struct event_bootcmd which provides a buffer for the bootcmd string and its size. Platform event handlers can write their custom bootcmd to this buffer. Co-developed-by: Claude <noreply@anthropic.com> Signed-off-by: Simon Glass <sjg@chromium.org>
116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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/* #define DEBUG */
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#include <autoboot.h>
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#include <button.h>
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#include <bootstage.h>
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#include <bootstd.h>
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#include <cli.h>
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#include <command.h>
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#include <console.h>
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#include <env.h>
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#include <event.h>
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#include <fdtdec.h>
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#include <init.h>
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#include <net.h>
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#include <version_string.h>
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#include <efi_loader.h>
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static void run_preboot_environment_command(void)
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{
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char *p;
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p = env_get("preboot");
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if (p != NULL) {
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int prev = 0;
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if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
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prev = disable_ctrlc(1); /* disable Ctrl-C checking */
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run_command_list(p, -1, 0);
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if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
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disable_ctrlc(prev); /* restore Ctrl-C checking */
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}
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}
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static const char *get_autoboot_cmd(char *buf, int size)
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{
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const char *s = NULL;
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if (IS_ENABLED(CONFIG_EVENT)) {
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struct event_bootcmd event_bootcmd;
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int ret;
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event_bootcmd.bootcmd = buf;
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event_bootcmd.size = size;
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buf[0] = '\0';
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ret = event_notify(EVT_BOOTCMD, &event_bootcmd,
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sizeof(event_bootcmd));
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if (ret)
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return NULL;
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if (buf[0] != '\0')
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s = buf;
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}
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return s;
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}
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/* We come here after U-Boot is initialised and ready to process commands */
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void main_loop(void)
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{
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const char *s;
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char bootcmd_buf[CONFIG_SYS_CBSIZE];
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bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
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if (IS_ENABLED(CONFIG_VERSION_VARIABLE))
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env_set("ver", version_string); /* set version variable */
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cli_init();
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if (IS_ENABLED(CONFIG_USE_PREBOOT))
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run_preboot_environment_command();
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if (IS_ENABLED(CONFIG_UPDATE_TFTP))
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update_tftp(0UL, NULL, NULL);
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if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK_EARLY)) {
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/* efi_init_early() already called */
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if (efi_init_obj_list() == EFI_SUCCESS)
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efi_launch_capsules();
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}
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process_button_cmds();
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/* Allow platform code to provide bootcmd via event */
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s = get_autoboot_cmd(bootcmd_buf, sizeof(bootcmd_buf));
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if (!s)
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s = bootdelay_process();
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if (cli_process_fdt(&s))
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cli_secure_boot_cmd(s);
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autoboot_command(s);
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/* if standard boot if enabled, assume that it will be able to boot */
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if (IS_ENABLED(CONFIG_BOOTSTD_PROG)) {
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int ret;
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ret = bootstd_prog_boot();
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printf("Standard boot failed (err=%dE)\n", ret);
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panic("Failed to boot");
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}
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cli_loop();
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panic("No CLI available");
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}
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