1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/omaplfb/omaplfb-sysfs.c b/drivers/gpu/pvr/omaplfb/omaplfb-sysfs.c
new file mode 100644
index 0000000..2e04583
--- /dev/null
+++ b/drivers/gpu/pvr/omaplfb/omaplfb-sysfs.c
@@ -0,0 +1,130 @@
+/*
+ * omaplfb-sysfs.c
+ *
+ * Copyright (C) 2011 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Author: Gustavo Diaz (gusdp@ti.com)
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+
+#include "img_defs.h"
+#include "servicesext.h"
+#include "kerneldisplay.h"
+#include "omaplfb.h"
+
+static ssize_t show_ignore_sync(OMAPLFB_DEVINFO *display_info, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", display_info->ignore_sync);
+}
+
+static ssize_t store_ignore_sync(OMAPLFB_DEVINFO *display_info,
+	const char *buf, size_t count)
+{
+	unsigned long new_value;
+
+	if (strict_strtoul(buf, 10, &new_value))
+		return -EINVAL;
+
+	if (new_value == 0 || new_value == 1) {
+		display_info->ignore_sync = new_value;
+		return count;
+	}
+
+	return -EINVAL;
+}
+
+struct omaplfb_attribute {
+	struct attribute attr;
+	ssize_t (*show)(OMAPLFB_DEVINFO *, char *);
+	ssize_t (*store)(OMAPLFB_DEVINFO *, const char *, size_t);
+};
+
+static ssize_t omaplfb_attr_show(struct kobject *kobj, struct attribute *attr,
+		char *buf)
+{
+	OMAPLFB_DEVINFO *display_info;
+	struct omaplfb_attribute *omaplfb_attr;
+
+	display_info = container_of(kobj, OMAPLFB_DEVINFO, kobj);
+	omaplfb_attr = container_of(attr, struct omaplfb_attribute, attr);
+
+	if (!omaplfb_attr->show)
+		return -ENOENT;
+
+	return omaplfb_attr->show(display_info, buf);
+}
+
+static ssize_t omaplfb_attr_store(struct kobject *kobj, struct attribute *attr,
+		const char *buf, size_t size)
+{
+	OMAPLFB_DEVINFO *display_info;
+	struct omaplfb_attribute *omaplfb_attr;
+
+	display_info = container_of(kobj, OMAPLFB_DEVINFO, kobj);
+	omaplfb_attr = container_of(attr, struct omaplfb_attribute, attr);
+
+	if (!omaplfb_attr->store)
+		return -ENOENT;
+
+	return omaplfb_attr->store(display_info, buf, size);
+}
+
+#define OMAPLFB_ATTR(_name, _mode, _show, _store) \
+	struct omaplfb_attribute omaplfb_attr_##_name = \
+	__ATTR(_name, _mode, _show, _store)
+
+static OMAPLFB_ATTR(ignore_sync, S_IRUGO|S_IWUSR, show_ignore_sync,
+	store_ignore_sync);
+
+#undef OMAPLFB_ATTR
+
+static struct attribute *omaplfb_sysfs_attrs[] = {
+	&omaplfb_attr_ignore_sync.attr,
+	NULL
+};
+
+static const struct sysfs_ops omaplfb_sysfs_ops = {
+	.show = omaplfb_attr_show,
+	.store = omaplfb_attr_store,
+};
+
+static struct kobj_type omaplfb_ktype = {
+	.sysfs_ops = &omaplfb_sysfs_ops,
+	.default_attrs = omaplfb_sysfs_attrs,
+};
+
+void omaplfb_create_sysfs(struct omaplfb_device *odev)
+{
+	int i, r;
+
+	/* Create a sysfs entry for every display */
+	for (i = 0; i < odev->display_count; i++) {
+		OMAPLFB_DEVINFO *display_info = &odev->display_info_list[i];
+		r = kobject_init_and_add(&display_info->kobj, &omaplfb_ktype,
+			&odev->dev->kobj, "display%d",
+			display_info->uDeviceID);
+		if (r)
+			ERROR_PRINTK("failed to create sysfs file\n");
+	}
+}
+
+void omaplfb_remove_sysfs(struct omaplfb_device *odev)
+{
+	int i;
+	for (i = 0; i < odev->display_count; i++) {
+		OMAPLFB_DEVINFO *display_info = &odev->display_info_list[i];
+		kobject_del(&display_info->kobj);
+		kobject_put(&display_info->kobj);
+	}
+}