Merge git://git.infradead.org/mtd-2.6

[linux-2.6-omap-h63xx.git] / drivers / acpi / debug.c

diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index bf513e07b7735738c0099171443ac05e6fcc917e..abf36b4b1d1d828ba7024ef3ddf49df5c9d1310f 100644 (file)
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -47,8 +47,6 @@ static const struct acpi_dlayer acpi_debug_layers[] = {
 };
 
 static const struct acpi_dlevel acpi_debug_levels[] = {
-       ACPI_DEBUG_INIT(ACPI_LV_ERROR),
-       ACPI_DEBUG_INIT(ACPI_LV_WARN),
        ACPI_DEBUG_INIT(ACPI_LV_INIT),
        ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
        ACPI_DEBUG_INIT(ACPI_LV_INFO),
@@ -130,6 +128,63 @@ static int param_get_debug_level(char *buffer, struct kernel_param *kp) {
 module_param_call(debug_layer, param_set_uint, param_get_debug_layer, &acpi_dbg_layer, 0644);
 module_param_call(debug_level, param_set_uint, param_get_debug_level, &acpi_dbg_level, 0644);
 
+static char trace_method_name[6];
+module_param_string(trace_method_name, trace_method_name, 6, 0644);
+static unsigned int trace_debug_layer;
+module_param(trace_debug_layer, uint, 0644);
+static unsigned int trace_debug_level;
+module_param(trace_debug_level, uint, 0644);
+
+static int param_set_trace_state(const char *val, struct kernel_param *kp)
+{
+       int result = 0;
+
+       if (!strncmp(val, "enable", strlen("enable") - 1)) {
+               result = acpi_debug_trace(trace_method_name, trace_debug_level,
+                                         trace_debug_layer, 0);
+               if (result)
+                       result = -EBUSY;
+               goto exit;
+       }
+
+       if (!strncmp(val, "disable", strlen("disable") - 1)) {
+               int name = 0;
+               result = acpi_debug_trace((char *)&name, trace_debug_level,
+                                         trace_debug_layer, 0);
+               if (result)
+                       result = -EBUSY;
+               goto exit;
+       }
+
+       if (!strncmp(val, "1", 1)) {
+               result = acpi_debug_trace(trace_method_name, trace_debug_level,
+                                         trace_debug_layer, 1);
+               if (result)
+                       result = -EBUSY;
+               goto exit;
+       }
+
+       result = -EINVAL;
+exit:
+       return result;
+}
+
+static int param_get_trace_state(char *buffer, struct kernel_param *kp)
+{
+       if (!acpi_gbl_trace_method_name)
+               return sprintf(buffer, "disable");
+       else {
+               if (acpi_gbl_trace_flags & 1)
+                       return sprintf(buffer, "1");
+               else
+                       return sprintf(buffer, "enable");
+       }
+       return 0;
+}
+
+module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
+                 NULL, 0644);
+
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */