Commit a929aae0 authored by Thomas Renninger's avatar Thomas Renninger Committed by Matthew Garrett

X86 platfrom wmi: Add debug facility to dump WMI data in a readable way

Signed-off-by: default avatarThomas Renninger <trenn@suse.de>
CC: platform-driver-x86@vger.kernel.org
CC: mjg59@srcf.ucam.org
CC: corentin.chary@gmail.com
Signed-off-by: default avatarCarlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
parent 7715348c
......@@ -86,6 +86,11 @@ module_param(debug_event, bool, 0444);
MODULE_PARM_DESC(debug_event,
"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_add(struct acpi_device *device);
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);
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)
{
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
......@@ -812,6 +844,9 @@ static __init acpi_status parse_wdg(acpi_handle handle)
guid_string);
continue;
}
if (debug_dump_wdg)
wmi_dump_wdg(&gblock[i]);
wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
if (!wblock)
return AE_NO_MEMORY;
......
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