From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/acpi/bgrt.c | 111 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 kernel/drivers/acpi/bgrt.c (limited to 'kernel/drivers/acpi/bgrt.c') diff --git a/kernel/drivers/acpi/bgrt.c b/kernel/drivers/acpi/bgrt.c new file mode 100644 index 000000000..a83e3c62c --- /dev/null +++ b/kernel/drivers/acpi/bgrt.c @@ -0,0 +1,111 @@ +/* + * Copyright 2012 Red Hat, Inc + * Copyright 2012 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +static struct kobject *bgrt_kobj; + +static ssize_t show_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->version); +} +static DEVICE_ATTR(version, S_IRUGO, show_version, NULL); + +static ssize_t show_status(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->status); +} +static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); + +static ssize_t show_type(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_type); +} +static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); + +static ssize_t show_xoffset(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_offset_x); +} +static DEVICE_ATTR(xoffset, S_IRUGO, show_xoffset, NULL); + +static ssize_t show_yoffset(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_offset_y); +} +static DEVICE_ATTR(yoffset, S_IRUGO, show_yoffset, NULL); + +static ssize_t image_read(struct file *file, struct kobject *kobj, + struct bin_attribute *attr, char *buf, loff_t off, size_t count) +{ + memcpy(buf, attr->private + off, count); + return count; +} + +static BIN_ATTR_RO(image, 0); /* size gets filled in later */ + +static struct attribute *bgrt_attributes[] = { + &dev_attr_version.attr, + &dev_attr_status.attr, + &dev_attr_type.attr, + &dev_attr_xoffset.attr, + &dev_attr_yoffset.attr, + NULL, +}; + +static struct bin_attribute *bgrt_bin_attributes[] = { + &bin_attr_image, + NULL, +}; + +static struct attribute_group bgrt_attribute_group = { + .attrs = bgrt_attributes, + .bin_attrs = bgrt_bin_attributes, +}; + +static int __init bgrt_init(void) +{ + int ret; + + if (!bgrt_image) + return -ENODEV; + + bin_attr_image.private = bgrt_image; + bin_attr_image.size = bgrt_image_size; + + bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj); + if (!bgrt_kobj) + return -EINVAL; + + ret = sysfs_create_group(bgrt_kobj, &bgrt_attribute_group); + if (ret) + goto out_kobject; + + return 0; + +out_kobject: + kobject_put(bgrt_kobj); + return ret; +} + +module_init(bgrt_init); + +MODULE_AUTHOR("Matthew Garrett, Josh Triplett "); +MODULE_DESCRIPTION("BGRT boot graphic support"); +MODULE_LICENSE("GPL"); -- cgit 1.2.3-korg