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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | // SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2017 * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc */ #define LOG_CATEGORY UCLASS_SYSINFO #include <dm.h> #include <sysinfo.h> struct sysinfo_priv { bool detected; }; int sysinfo_get(struct udevice **devp) { int ret = uclass_first_device_err(UCLASS_SYSINFO, devp); /* * There is some very dodgy error handling in gazerbeam, * do not return a device on error. */ if (ret) *devp = NULL; return ret; } int sysinfo_detect(struct udevice *dev) { int ret; struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!ops->detect) return -ENOSYS; ret = ops->detect(dev); if (!ret) priv->detected = true; return ret; } int sysinfo_get_fit_loadable(struct udevice *dev, int index, const char *type, const char **strp) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_fit_loadable) return -ENOSYS; return ops->get_fit_loadable(dev, index, type, strp); } int sysinfo_get_bool(struct udevice *dev, int id, bool *val) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_bool) return -ENOSYS; return ops->get_bool(dev, id, val); } int sysinfo_get_int(struct udevice *dev, int id, int *val) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_int) return -ENOSYS; return ops->get_int(dev, id, val); } int sysinfo_get_str(struct udevice *dev, int id, size_t size, char *val) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_str) return -ENOSYS; return ops->get_str(dev, id, size, val); } int sysinfo_get_data(struct udevice *dev, int id, void **data, size_t *size) { struct sysinfo_priv *priv; struct sysinfo_ops *ops; if (!dev) return -ENOSYS; priv = dev_get_uclass_priv(dev); ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_data) return -ENOSYS; return ops->get_data(dev, id, data, size); } int sysinfo_get_item_count(struct udevice *dev, int id) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_item_count) return -ENOSYS; return ops->get_item_count(dev, id); } int sysinfo_get_data_by_index(struct udevice *dev, int id, int index, void **data, size_t *size) { struct sysinfo_priv *priv = dev_get_uclass_priv(dev); struct sysinfo_ops *ops = sysinfo_get_ops(dev); if (!priv->detected) return -EPERM; if (!ops->get_data_by_index) return -ENOSYS; return ops->get_data_by_index(dev, id, index, data, size); } UCLASS_DRIVER(sysinfo) = { .id = UCLASS_SYSINFO, .name = "sysinfo", .post_bind = dm_scan_fdt_dev, .per_device_auto = sizeof(bool), }; |