d9152ea75e
This provides a basic prototype for boot control. Some documentation is in boot/bootctl/README.rst
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Access to extlinux.conf files containing OS information
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*
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* Copyright 2025 Canonical Ltd
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* Written by Simon Glass <simon.glass@canonical.com>
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*/
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#define LOG_CATEGORY UCLASS_BOOTCTL
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#include <bootctl.h>
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#include <bootmeth.h>
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#include <bootstd.h>
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#include <dm.h>
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#include <log.h>
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#include <bootctl/oslist.h>
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static int extlinux_bind(struct udevice *dev)
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{
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struct bootctl_uc_plat *ucp = dev_get_uclass_plat(dev);
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ucp->desc = "Provides OSes to boot";
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return 0;
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}
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static int extlinux_next(struct udevice *dev, struct oslist_iter *iter,
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struct osinfo *info)
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{
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int ret;
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if (!iter->active) {
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bootstd_clear_glob();
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iter->active = true;
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ret = bootmeth_set_order("extlinux");
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if (ret)
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return log_msg_ret("eso", ret);
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ret = bootflow_scan_first(NULL, NULL, &iter->bf_iter,
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BOOTFLOWIF_HUNT, &info->bflow);
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if (ret)
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return log_msg_ret("esf", ret);
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} else {
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ret = bootflow_scan_next(&iter->bf_iter, &info->bflow);
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if (ret) {
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iter->active = false;
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if (ret)
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return log_msg_ret("esn", ret);
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}
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}
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return 0;
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}
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static struct bc_oslist_ops ops = {
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.next = extlinux_next,
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};
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static const struct udevice_id extlinux_ids[] = {
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{ .compatible = "bootctl,extlinux-oslist" },
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{ .compatible = "bootctl,os-list" },
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{ }
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};
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U_BOOT_DRIVER(extlinux) = {
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.name = "extlinux",
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.id = UCLASS_BOOTCTL_OSLIST,
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.of_match = extlinux_ids,
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.bind = extlinux_bind,
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.ops = &ops,
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};
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