^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Export SMBIOS/DMI info via sysfs to userspace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2007, Lennart Poettering
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/dmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct dmi_device_attribute{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct device_attribute dev_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) int field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define to_dmi_dev_attr(_dev_attr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static ssize_t sys_dmi_field_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) char *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) int field = to_dmi_dev_attr(attr)->field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ssize_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(field));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) page[len-1] = '\n';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define DMI_ATTR(_name, _mode, _show, _field) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) { .dev_attr = __ATTR(_name, _mode, _show, NULL), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .field = _field }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static struct dmi_device_attribute sys_dmi_##_name##_attr = \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) DMI_ATTR(_name, _mode, sys_dmi_field_show, _field);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor, 0444, DMI_BIOS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) DEFINE_DMI_ATTR_WITH_SHOW(bios_version, 0444, DMI_BIOS_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) DEFINE_DMI_ATTR_WITH_SHOW(bios_date, 0444, DMI_BIOS_DATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) DEFINE_DMI_ATTR_WITH_SHOW(sys_vendor, 0444, DMI_SYS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) DEFINE_DMI_ATTR_WITH_SHOW(bios_release, 0444, DMI_BIOS_RELEASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) DEFINE_DMI_ATTR_WITH_SHOW(ec_firmware_release, 0444, DMI_EC_FIRMWARE_RELEASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) DEFINE_DMI_ATTR_WITH_SHOW(product_name, 0444, DMI_PRODUCT_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) DEFINE_DMI_ATTR_WITH_SHOW(product_version, 0444, DMI_PRODUCT_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) DEFINE_DMI_ATTR_WITH_SHOW(product_serial, 0400, DMI_PRODUCT_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) DEFINE_DMI_ATTR_WITH_SHOW(product_uuid, 0400, DMI_PRODUCT_UUID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) DEFINE_DMI_ATTR_WITH_SHOW(product_sku, 0444, DMI_PRODUCT_SKU);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) DEFINE_DMI_ATTR_WITH_SHOW(product_family, 0444, DMI_PRODUCT_FAMILY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) DEFINE_DMI_ATTR_WITH_SHOW(board_vendor, 0444, DMI_BOARD_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) DEFINE_DMI_ATTR_WITH_SHOW(board_name, 0444, DMI_BOARD_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) DEFINE_DMI_ATTR_WITH_SHOW(board_version, 0444, DMI_BOARD_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) DEFINE_DMI_ATTR_WITH_SHOW(board_serial, 0400, DMI_BOARD_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) DEFINE_DMI_ATTR_WITH_SHOW(board_asset_tag, 0444, DMI_BOARD_ASSET_TAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) DEFINE_DMI_ATTR_WITH_SHOW(chassis_vendor, 0444, DMI_CHASSIS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) DEFINE_DMI_ATTR_WITH_SHOW(chassis_type, 0444, DMI_CHASSIS_TYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) DEFINE_DMI_ATTR_WITH_SHOW(chassis_version, 0444, DMI_CHASSIS_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) DEFINE_DMI_ATTR_WITH_SHOW(chassis_serial, 0400, DMI_CHASSIS_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) DEFINE_DMI_ATTR_WITH_SHOW(chassis_asset_tag, 0444, DMI_CHASSIS_ASSET_TAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void ascii_filter(char *d, const char *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* Filter out characters we don't want to see in the modalias string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) for (; *s; s++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (*s > ' ' && *s < 127 && *s != ':')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) *(d++) = *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) *d = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static ssize_t get_modalias(char *buffer, size_t buffer_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static const struct mafield {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) const char *prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) int field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) } fields[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) { "bvn", DMI_BIOS_VENDOR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) { "bvr", DMI_BIOS_VERSION },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) { "bd", DMI_BIOS_DATE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) { "br", DMI_BIOS_RELEASE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) { "efr", DMI_EC_FIRMWARE_RELEASE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) { "svn", DMI_SYS_VENDOR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) { "pn", DMI_PRODUCT_NAME },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) { "pvr", DMI_PRODUCT_VERSION },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) { "rvn", DMI_BOARD_VENDOR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) { "rn", DMI_BOARD_NAME },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) { "rvr", DMI_BOARD_VERSION },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) { "cvn", DMI_CHASSIS_VENDOR },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) { "ct", DMI_CHASSIS_TYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) { "cvr", DMI_CHASSIS_VERSION },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) { NULL, DMI_NONE }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ssize_t l, left;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) const struct mafield *f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) strcpy(buffer, "dmi");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) p = buffer + 3; left = buffer_size - 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) for (f = fields; f->prefix && left > 0; f++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) const char *c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) char *t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) c = dmi_get_system_info(f->field);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) if (!c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) t = kmalloc(strlen(c) + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (!t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) ascii_filter(t, c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) l = scnprintf(p, left, ":%s%s", f->prefix, t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) kfree(t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) p += l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) left -= l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) p[0] = ':';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) p[1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return p - buffer + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static ssize_t sys_dmi_modalias_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct device_attribute *attr, char *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ssize_t r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) r = get_modalias(page, PAGE_SIZE-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) page[r] = '\n';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) page[r+1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return r+1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static struct device_attribute sys_dmi_modalias_attr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) __ATTR(modalias, 0444, sys_dmi_modalias_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static struct attribute_group sys_dmi_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .attrs = sys_dmi_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static const struct attribute_group* sys_dmi_attribute_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) &sys_dmi_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) ssize_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (add_uevent_var(env, "MODALIAS="))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) len = get_modalias(&env->buf[env->buflen - 1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) sizeof(env->buf) - env->buflen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (len >= (sizeof(env->buf) - env->buflen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) env->buflen += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static struct class dmi_class = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .name = "dmi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .dev_release = (void(*)(struct device *)) kfree,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .dev_uevent = dmi_dev_uevent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static struct device *dmi_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /* Initialization */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) #define ADD_DMI_ATTR(_name, _field) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (dmi_get_system_info(_field)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* In a separate function to keep gcc 3.2 happy - do NOT merge this in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) dmi_id_init! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static void __init dmi_id_init_attr_table(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /* Not necessarily all DMI fields are available on all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * systems, hence let's built an attribute table of just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * what's available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ADD_DMI_ATTR(bios_vendor, DMI_BIOS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ADD_DMI_ATTR(bios_version, DMI_BIOS_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) ADD_DMI_ATTR(bios_date, DMI_BIOS_DATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) ADD_DMI_ATTR(bios_release, DMI_BIOS_RELEASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) ADD_DMI_ATTR(ec_firmware_release, DMI_EC_FIRMWARE_RELEASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) ADD_DMI_ATTR(sys_vendor, DMI_SYS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) ADD_DMI_ATTR(product_name, DMI_PRODUCT_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) ADD_DMI_ATTR(product_version, DMI_PRODUCT_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) ADD_DMI_ATTR(product_serial, DMI_PRODUCT_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) ADD_DMI_ATTR(product_uuid, DMI_PRODUCT_UUID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) ADD_DMI_ATTR(product_family, DMI_PRODUCT_FAMILY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) ADD_DMI_ATTR(product_sku, DMI_PRODUCT_SKU);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) ADD_DMI_ATTR(board_vendor, DMI_BOARD_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ADD_DMI_ATTR(board_name, DMI_BOARD_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) ADD_DMI_ATTR(board_version, DMI_BOARD_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ADD_DMI_ATTR(board_serial, DMI_BOARD_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ADD_DMI_ATTR(board_asset_tag, DMI_BOARD_ASSET_TAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ADD_DMI_ATTR(chassis_vendor, DMI_CHASSIS_VENDOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ADD_DMI_ATTR(chassis_type, DMI_CHASSIS_TYPE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ADD_DMI_ATTR(chassis_version, DMI_CHASSIS_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ADD_DMI_ATTR(chassis_serial, DMI_CHASSIS_SERIAL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ADD_DMI_ATTR(chassis_asset_tag, DMI_CHASSIS_ASSET_TAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) sys_dmi_attributes[i++] = &sys_dmi_modalias_attr.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static int __init dmi_id_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (!dmi_available)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) dmi_id_init_attr_table();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ret = class_register(&dmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (!dmi_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) goto fail_class_unregister;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) dmi_dev->class = &dmi_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) dev_set_name(dmi_dev, "id");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) dmi_dev->groups = sys_dmi_attribute_groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) ret = device_register(dmi_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) goto fail_put_dmi_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) fail_put_dmi_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) put_device(dmi_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) fail_class_unregister:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) class_unregister(&dmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) arch_initcall(dmi_id_init);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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