X86 platfrom wmi: Add debug facility to dump WMI data in a readable way (a929aae0) · Commits · 戴 / test

drivers/platform/x86/wmi.c

+35 −0

Original line number	Original line	Diff line number	Diff line
	@@ -86,6 +86,11 @@ module_param(debug_event, bool, 0444);
	MODULE_PARM_DESC(debug_event,		MODULE_PARM_DESC(debug_event,
	"Log WMI Events [0/1]");		"Log WMI Events [0/1]");

			static int debug_dump_wdg;
			module_param(debug_dump_wdg, bool, 0444);
			MODULE_PARM_DESC(debug_dump_wdg,
			"Dump available WMI interfaces [0/1]");

	static int acpi_wmi_remove(struct acpi_device *device, int type);		static int acpi_wmi_remove(struct acpi_device *device, int type);
	static int acpi_wmi_add(struct acpi_device *device);		static int acpi_wmi_add(struct acpi_device *device);
	static void acpi_wmi_notify(struct acpi_device *device, u32 event);		static void acpi_wmi_notify(struct acpi_device *device, u32 event);
	@@ -482,6 +487,33 @@ const struct acpi_buffer *in)
	}		}
	EXPORT_SYMBOL_GPL(wmi_set_block);		EXPORT_SYMBOL_GPL(wmi_set_block);

			static void wmi_dump_wdg(struct guid_block *g)
			{
			char guid_string[37];

			wmi_gtoa(g->guid, guid_string);
			printk(KERN_INFO PREFIX "%s:\n", guid_string);
			printk(KERN_INFO PREFIX "\tobject_id: %c%c\n",
			g->object_id[0], g->object_id[1]);
			printk(KERN_INFO PREFIX "\tnotify_id: %02X\n", g->notify_id);
			printk(KERN_INFO PREFIX "\treserved: %02X\n", g->reserved);
			printk(KERN_INFO PREFIX "\tinstance_count: %d\n", g->instance_count);
			printk(KERN_INFO PREFIX "\tflags: %#x", g->flags);
			if (g->flags) {
			printk(" ");
			if (g->flags & ACPI_WMI_EXPENSIVE)
			printk("ACPI_WMI_EXPENSIVE ");
			if (g->flags & ACPI_WMI_METHOD)
			printk("ACPI_WMI_METHOD ");
			if (g->flags & ACPI_WMI_STRING)
			printk("ACPI_WMI_STRING ");
			if (g->flags & ACPI_WMI_EVENT)
			printk("ACPI_WMI_EVENT ");
			}
			printk("\n");

			}

	static void wmi_notify_debug(u32 value, void *context)		static void wmi_notify_debug(u32 value, void *context)
	{		{
	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };		struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
	@@ -812,6 +844,9 @@ static __init acpi_status parse_wdg(acpi_handle handle)
	guid_string);		guid_string);
	continue;		continue;
	}		}
			if (debug_dump_wdg)
			wmi_dump_wdg(&gblock[i]);

	wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);		wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
	if (!wblock)		if (!wblock)
	return AE_NO_MEMORY;		return AE_NO_MEMORY;

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