[Mod] 优化Makefile

03-Bus/01-Platform/01-osdev/OSAL_osdev.c.bak

@@ -0,0 +1,185 @@
+/*******************************************************************************
+ * HangZhou Hikvision Digital Technology Co., Ltd. All Right Reserved.
+ * Author       :
+ * Version      : V1.0.0  2024.11.15
+ * Description  :
+ * Note         : anonymity@hikvision.com.cn     Modified        2024.11.15
+ ******************************************************************************/
+#include <stdarg.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>	// MKDEV
+
+#include "OSAL_osdev.h"
+
+struct device osal_bus = {
+	.init_name	= "osal",
+};
+
+struct bus_type osal_bus_type = {
+	.name		= "osal",
+};
+
+struct osdev_device {		// Object
+	struct device   dev;
+	char name[];
+};
+
+struct osdev_driver {
+	struct device_driver drv;
+};
+
+static void osadev_device_release(struct device *dev)
+{
+	struct osdev_device *osdev_obj = container_of(dev, struct osdev_device, dev);
+
+	kfree(osdev_obj);
+}
+
+OSAL_osdev *OSAL_osdevAlloc(const char *name, int id)
+{
+	struct device *dev = NULL;
+	struct osdev *osdev = NULL;
+	struct osdev_device *osdev_obj = NULL;
+
+	osdev_obj = kzalloc(sizeof(struct osdev_device) + strlen(name) + 1, GFP_KERNEL);
+	if (!osdev_obj) {
+		pr_err("ErrNo(%ld), alloc memory for OSAL_sysDevice failed.", PTR_ERR(dev));
+		return ERR_PTR(-ENOMEM);
+	}
+	osdev = &(osdev_obj->osdev);
+	dev   = &(osdev_obj->dev);
+
+	strcpy(osdev_obj->name, name);
+	osdev->name = osdev_obj->name;
+	osdev->id   = id;
+	device_initialize(dev);
+	dev->release = osadev_device_release;
+
+	osdev->obj = osdev;
+
+	return (OSAL_osdev *)osdev;
+}
+EXPORT_SYMBOL(OSAL_osdevAlloc);
+
+int OSAL_osdevRegister(OSAL_osdev *osdev)
+{
+	int ret = 0;
+	struct device *dev = NULL;
+	struct osdev *osdev_tmp = NULL;
+	struct osdev_device *osdev_obj = NULL;
+	struct osdev_device *osdev_parent = NULL;
+
+	if (osdev == NULL) {
+		pr_err("Error, null pointer exception.");
+		return -EINVAL;
+	}
+
+	if (!osdev->obj) {
+		osdev_tmp = OSAL_osdevAlloc(osdev->name, osdev->id);
+		osdev->obj = osdev_tmp;
+	}
+	else {
+		osdev_tmp = osdev->obj;
+		osdev_parent = container_of(osdev_tmp, struct osdev_device, osdev);
+	}
+	osdev_obj = container_of(osdev_tmp->obj, struct osdev_device, osdev);
+	dev       = &(osdev_obj->dev);
+
+	dev_set_name(dev, "%s.%d", osdev->name, osdev->id);
+	dev_set_drvdata(dev, osdev_obj);
+	dev->bus    = &osal_bus_type;
+	dev->devt   = MKDEV(0, 0);
+	dev->parent = osdev_parent ? &osdev_parent->dev : &osal_bus;
+
+	ret = device_add(dev);
+	if (ret) {
+		pr_err("ErrNo(%d), add device failed.", ret);
+		put_device(dev);
+		return ret;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(OSAL_osdevRegister);
+
+void OSAL_osdevUnregister(OSAL_osdev *osdev)
+{
+	struct osdev_device *osdev_obj = NULL;
+
+	if (osdev == NULL || osdev->obj == NULL) {
+		pr_err("Error, null pointer exception.");
+		return;
+	}
+
+	osdev_obj = container_of(osdev->obj, struct osdev_device, osdev);
+
+	device_del(&osdev_obj->dev);
+	put_device(&osdev_obj->dev);
+}
+EXPORT_SYMBOL(OSAL_osdevUnregister);
+
+inline void *OSAL_osdevGetDrvdata(const OSAL_osdev *osdev)
+{
+	struct osdev_device *osdev_obj = NULL;
+
+	if (osdev == NULL || osdev->obj == NULL) {
+		pr_err("Error, null pointer exception.");
+		return ERR_PTR(-EINVAL);
+	}
+
+	osdev_obj = container_of(osdev->obj, struct osdev_device, osdev);
+
+	return dev_get_drvdata(&osdev_obj->dev);
+}
+EXPORT_SYMBOL(OSAL_osdevGetDrvdata);
+
+inline void OSAL_osdevSetDrvdata(OSAL_osdev *osdev, void *data)
+{
+	struct osdev_device *osdev_obj = NULL;
+
+	if (osdev == NULL || osdev->obj == NULL) {
+		pr_err("Error, null pointer exception.");
+		return;
+	}
+
+	osdev_obj = container_of(osdev->obj, struct osdev_device, osdev);
+
+	dev_set_drvdata(&osdev_obj->dev, data);
+}
+EXPORT_SYMBOL(OSAL_osdevSetDrvdata);
+
+int __init OSAL_osdevInit(void)
+{
+	int ret = 0;
+
+	ret = device_register(&osal_bus);
+	if (ret) {
+		pr_err("ErrNo(%d), register bus Device[osal] failed.", ret);
+		put_device(&osal_bus);
+		goto out;
+	}
+
+	ret =  bus_register(&osal_bus_type);
+	if (ret) {
+		pr_err("ErrNo(%d), register bus Type[osal] failed.", ret);
+		goto out_unregister_bus;
+	}
+
+	pr_info("OSAL_osdev initialize completed.");
+
+	return ret;
+
+out_unregister_bus:
+	device_unregister(&osal_bus);
+out:
+	return ret;
+}
+
+void __exit OSAL_osdevExit(void)
+{
+	bus_unregister(&osal_bus_type);
+	device_unregister(&osal_bus);
+}