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https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
245
drivers/firmware/dmi-id.c
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245
drivers/firmware/dmi-id.c
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@ -0,0 +1,245 @@
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/*
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* Export SMBIOS/DMI info via sysfs to userspace
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*
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* Copyright 2007, Lennart Poettering
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*
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* Licensed under GPLv2
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/dmi.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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struct dmi_device_attribute{
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struct device_attribute dev_attr;
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int field;
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};
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#define to_dmi_dev_attr(_dev_attr) \
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container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
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static ssize_t sys_dmi_field_show(struct device *dev,
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struct device_attribute *attr,
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char *page)
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{
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int field = to_dmi_dev_attr(attr)->field;
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ssize_t len;
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len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(field));
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page[len-1] = '\n';
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return len;
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}
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#define DMI_ATTR(_name, _mode, _show, _field) \
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{ .dev_attr = __ATTR(_name, _mode, _show, NULL), \
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.field = _field }
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#define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field) \
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static struct dmi_device_attribute sys_dmi_##_name##_attr = \
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DMI_ATTR(_name, _mode, sys_dmi_field_show, _field);
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DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor, 0444, DMI_BIOS_VENDOR);
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DEFINE_DMI_ATTR_WITH_SHOW(bios_version, 0444, DMI_BIOS_VERSION);
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DEFINE_DMI_ATTR_WITH_SHOW(bios_date, 0444, DMI_BIOS_DATE);
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DEFINE_DMI_ATTR_WITH_SHOW(sys_vendor, 0444, DMI_SYS_VENDOR);
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DEFINE_DMI_ATTR_WITH_SHOW(product_name, 0444, DMI_PRODUCT_NAME);
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DEFINE_DMI_ATTR_WITH_SHOW(product_version, 0444, DMI_PRODUCT_VERSION);
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DEFINE_DMI_ATTR_WITH_SHOW(product_serial, 0400, DMI_PRODUCT_SERIAL);
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DEFINE_DMI_ATTR_WITH_SHOW(product_uuid, 0400, DMI_PRODUCT_UUID);
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DEFINE_DMI_ATTR_WITH_SHOW(board_vendor, 0444, DMI_BOARD_VENDOR);
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DEFINE_DMI_ATTR_WITH_SHOW(board_name, 0444, DMI_BOARD_NAME);
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DEFINE_DMI_ATTR_WITH_SHOW(board_version, 0444, DMI_BOARD_VERSION);
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DEFINE_DMI_ATTR_WITH_SHOW(board_serial, 0400, DMI_BOARD_SERIAL);
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DEFINE_DMI_ATTR_WITH_SHOW(board_asset_tag, 0444, DMI_BOARD_ASSET_TAG);
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DEFINE_DMI_ATTR_WITH_SHOW(chassis_vendor, 0444, DMI_CHASSIS_VENDOR);
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DEFINE_DMI_ATTR_WITH_SHOW(chassis_type, 0444, DMI_CHASSIS_TYPE);
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DEFINE_DMI_ATTR_WITH_SHOW(chassis_version, 0444, DMI_CHASSIS_VERSION);
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DEFINE_DMI_ATTR_WITH_SHOW(chassis_serial, 0400, DMI_CHASSIS_SERIAL);
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DEFINE_DMI_ATTR_WITH_SHOW(chassis_asset_tag, 0444, DMI_CHASSIS_ASSET_TAG);
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static void ascii_filter(char *d, const char *s)
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{
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/* Filter out characters we don't want to see in the modalias string */
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for (; *s; s++)
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if (*s > ' ' && *s < 127 && *s != ':')
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*(d++) = *s;
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*d = 0;
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}
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static ssize_t get_modalias(char *buffer, size_t buffer_size)
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{
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static const struct mafield {
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const char *prefix;
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int field;
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} fields[] = {
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{ "bvn", DMI_BIOS_VENDOR },
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{ "bvr", DMI_BIOS_VERSION },
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{ "bd", DMI_BIOS_DATE },
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{ "svn", DMI_SYS_VENDOR },
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{ "pn", DMI_PRODUCT_NAME },
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{ "pvr", DMI_PRODUCT_VERSION },
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{ "rvn", DMI_BOARD_VENDOR },
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{ "rn", DMI_BOARD_NAME },
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{ "rvr", DMI_BOARD_VERSION },
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{ "cvn", DMI_CHASSIS_VENDOR },
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{ "ct", DMI_CHASSIS_TYPE },
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{ "cvr", DMI_CHASSIS_VERSION },
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{ NULL, DMI_NONE }
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};
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ssize_t l, left;
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char *p;
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const struct mafield *f;
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strcpy(buffer, "dmi");
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p = buffer + 3; left = buffer_size - 4;
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for (f = fields; f->prefix && left > 0; f++) {
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const char *c;
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char *t;
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c = dmi_get_system_info(f->field);
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if (!c)
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continue;
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t = kmalloc(strlen(c) + 1, GFP_KERNEL);
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if (!t)
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break;
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ascii_filter(t, c);
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l = scnprintf(p, left, ":%s%s", f->prefix, t);
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kfree(t);
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p += l;
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left -= l;
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}
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p[0] = ':';
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p[1] = 0;
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return p - buffer + 1;
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}
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static ssize_t sys_dmi_modalias_show(struct device *dev,
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struct device_attribute *attr, char *page)
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{
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ssize_t r;
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r = get_modalias(page, PAGE_SIZE-1);
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page[r] = '\n';
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page[r+1] = 0;
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return r+1;
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}
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static struct device_attribute sys_dmi_modalias_attr =
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__ATTR(modalias, 0444, sys_dmi_modalias_show, NULL);
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static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2];
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static struct attribute_group sys_dmi_attribute_group = {
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.attrs = sys_dmi_attributes,
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};
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static const struct attribute_group* sys_dmi_attribute_groups[] = {
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&sys_dmi_attribute_group,
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NULL
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};
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static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
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{
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ssize_t len;
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if (add_uevent_var(env, "MODALIAS="))
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return -ENOMEM;
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len = get_modalias(&env->buf[env->buflen - 1],
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sizeof(env->buf) - env->buflen);
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if (len >= (sizeof(env->buf) - env->buflen))
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return -ENOMEM;
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env->buflen += len;
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return 0;
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}
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static struct class dmi_class = {
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.name = "dmi",
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.dev_release = (void(*)(struct device *)) kfree,
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.dev_uevent = dmi_dev_uevent,
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};
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static struct device *dmi_dev;
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/* Initialization */
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#define ADD_DMI_ATTR(_name, _field) \
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if (dmi_get_system_info(_field)) \
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sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr;
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/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
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dmi_id_init! */
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static void __init dmi_id_init_attr_table(void)
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{
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int i;
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/* Not necessarily all DMI fields are available on all
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* systems, hence let's built an attribute table of just
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* what's available */
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i = 0;
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ADD_DMI_ATTR(bios_vendor, DMI_BIOS_VENDOR);
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ADD_DMI_ATTR(bios_version, DMI_BIOS_VERSION);
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ADD_DMI_ATTR(bios_date, DMI_BIOS_DATE);
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ADD_DMI_ATTR(sys_vendor, DMI_SYS_VENDOR);
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ADD_DMI_ATTR(product_name, DMI_PRODUCT_NAME);
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ADD_DMI_ATTR(product_version, DMI_PRODUCT_VERSION);
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ADD_DMI_ATTR(product_serial, DMI_PRODUCT_SERIAL);
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ADD_DMI_ATTR(product_uuid, DMI_PRODUCT_UUID);
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ADD_DMI_ATTR(board_vendor, DMI_BOARD_VENDOR);
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ADD_DMI_ATTR(board_name, DMI_BOARD_NAME);
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ADD_DMI_ATTR(board_version, DMI_BOARD_VERSION);
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ADD_DMI_ATTR(board_serial, DMI_BOARD_SERIAL);
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ADD_DMI_ATTR(board_asset_tag, DMI_BOARD_ASSET_TAG);
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ADD_DMI_ATTR(chassis_vendor, DMI_CHASSIS_VENDOR);
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ADD_DMI_ATTR(chassis_type, DMI_CHASSIS_TYPE);
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ADD_DMI_ATTR(chassis_version, DMI_CHASSIS_VERSION);
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ADD_DMI_ATTR(chassis_serial, DMI_CHASSIS_SERIAL);
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ADD_DMI_ATTR(chassis_asset_tag, DMI_CHASSIS_ASSET_TAG);
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sys_dmi_attributes[i++] = &sys_dmi_modalias_attr.attr;
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}
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static int __init dmi_id_init(void)
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{
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int ret;
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if (!dmi_available)
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return -ENODEV;
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dmi_id_init_attr_table();
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ret = class_register(&dmi_class);
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if (ret)
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return ret;
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dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL);
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if (!dmi_dev) {
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ret = -ENOMEM;
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goto fail_class_unregister;
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}
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dmi_dev->class = &dmi_class;
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dev_set_name(dmi_dev, "id");
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dmi_dev->groups = sys_dmi_attribute_groups;
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ret = device_register(dmi_dev);
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if (ret)
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goto fail_free_dmi_dev;
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return 0;
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fail_free_dmi_dev:
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kfree(dmi_dev);
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fail_class_unregister:
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class_unregister(&dmi_class);
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return ret;
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}
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arch_initcall(dmi_id_init);
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