projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 4c7418f3 SG |
1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* | |
| 3 | * Verified Boot for Embedded (VBE) access functions | |
| 4 | * | |
| 5 | * Copyright 2022 Google LLC | |
| 6 | * Written by Simon Glass <[email protected]> | |
| 7 | */ | |
| 8 | ||
| 4c7418f3 SG |
9 | #include <bootmeth.h> |
| 10 | #include <bootstd.h> | |
| 11 | #include <dm.h> | |
| 12 | #include <image.h> | |
| 13 | #include <vbe.h> | |
| 14 | #include <dm/uclass-internal.h> | |
| 15 | ||
| 16 | /** | |
| 17 | * is_vbe() - Check if a device is a VBE method | |
| 18 | * | |
| 19 | * @dev: Device to check | |
| 20 | * @return true if this is a VBE bootmth device, else false | |
| 21 | */ | |
| 22 | static bool is_vbe(struct udevice *dev) | |
| 23 | { | |
| 24 | return !strncmp("vbe", dev->driver->name, 3); | |
| 25 | } | |
| 26 | ||
| 27 | int vbe_find_next_device(struct udevice **devp) | |
| 28 | { | |
| 29 | for (uclass_find_next_device(devp); | |
| 30 | *devp; | |
| 31 | uclass_find_next_device(devp)) { | |
| 32 | if (is_vbe(*devp)) | |
| 33 | return 0; | |
| 34 | } | |
| 35 | ||
| 36 | return 0; | |
| 37 | } | |
| 38 | ||
| 39 | int vbe_find_first_device(struct udevice **devp) | |
| 40 | { | |
| 41 | uclass_find_first_device(UCLASS_BOOTMETH, devp); | |
| d81eeacd | 42 | if (!*devp || is_vbe(*devp)) |
| 4c7418f3 SG |
43 | return 0; |
| 44 | ||
| 45 | return vbe_find_next_device(devp); | |
| 46 | } | |
| 47 | ||
| 48 | int vbe_list(void) | |
| 49 | { | |
| 50 | struct bootstd_priv *std; | |
| 51 | struct udevice *dev; | |
| 52 | int ret; | |
| 53 | ||
| 54 | ret = bootstd_get_priv(&std); | |
| 55 | if (ret) | |
| 56 | return ret; | |
| 57 | ||
| 58 | printf("%3s %-3s %-15s %-15s %s\n", "#", "Sel", "Device", "Driver", | |
| 59 | "Description"); | |
| 60 | printf("%3s %-3s %-15s %-15s %s\n", "---", "---", "--------------", | |
| 61 | "--------------", "-----------"); | |
| 62 | for (ret = vbe_find_first_device(&dev); dev; | |
| 63 | ret = vbe_find_next_device(&dev)) { | |
| 64 | const struct bootmeth_uc_plat *plat = dev_get_uclass_plat(dev); | |
| 65 | ||
| 66 | printf("%3d %-3s %-15s %-15s %s\n", dev_seq(dev), | |
| 67 | std->vbe_bootmeth == dev ? "*" : "", dev->name, | |
| 68 | dev->driver->name, plat->desc); | |
| 69 | } | |
| 70 | printf("%3s %-3s %-15s %-15s %s\n", "---", "---", "--------------", | |
| 71 | "--------------", "-----------"); | |
| 72 | ||
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 76 | int vbe_select(struct udevice *dev) | |
| 77 | { | |
| 78 | struct bootstd_priv *std; | |
| 79 | int ret; | |
| 80 | ||
| 81 | ret = bootstd_get_priv(&std); | |
| 82 | if (ret) | |
| 83 | return ret; | |
| 84 | std->vbe_bootmeth = dev; | |
| 85 | ||
| 86 | return 0; | |
| 87 | } | |
| 88 | ||
| 89 | int vbe_find_by_any(const char *name, struct udevice **devp) | |
| 90 | { | |
| 91 | struct udevice *dev; | |
| 92 | int ret, seq; | |
| 93 | char *endp; | |
| 94 | ||
| 95 | seq = simple_strtol(name, &endp, 16); | |
| 96 | ||
| 97 | /* Select by name */ | |
| 98 | if (*endp) { | |
| 99 | ret = uclass_get_device_by_name(UCLASS_BOOTMETH, name, &dev); | |
| 100 | if (ret) { | |
| 101 | printf("Cannot probe VBE bootmeth '%s' (err=%d)\n", name, | |
| 102 | ret); | |
| 103 | return ret; | |
| 104 | } | |
| 105 | ||
| 106 | /* select by number */ | |
| 107 | } else { | |
| 108 | ret = uclass_get_device_by_seq(UCLASS_BOOTMETH, seq, &dev); | |
| 109 | if (ret) { | |
| 110 | printf("Cannot find '%s' (err=%d)\n", name, ret); | |
| 111 | return ret; | |
| 112 | } | |
| 113 | } | |
| 114 | ||
| 115 | *devp = dev; | |
| 116 | ||
| 117 | return 0; | |
| 118 | } |