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-rw-r--r--drivers/misc/Kconfig10
-rw-r--r--drivers/misc/thinkpad_acpi.c3
-rw-r--r--drivers/misc/thinkpad_acpi.h13
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2cd96a3..44e4c8f 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -137,6 +137,16 @@ config THINKPAD_ACPI
If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
+config THINKPAD_ACPI_DEBUG
+ bool "Verbose debug mode"
+ depends on THINKPAD_ACPI
+ default n
+ ---help---
+ Enables extra debugging information, at the expense of a slightly
+ increase in driver size.
+
+ If you are not sure, say N here.
+
config THINKPAD_ACPI_DOCK
bool "Legacy Docking Station Support"
depends on THINKPAD_ACPI
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 4131a78..7fa906f 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -2684,6 +2684,9 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp)
static int experimental;
module_param(experimental, int, 0);
+static u32 dbg_level;
+module_param_named(debug, dbg_level, uint, 0);
+
#define IBM_PARAM(feature) \
module_param_call(feature, set_ibm_param, NULL, NULL, 0)
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 02a297e..b2348d7 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -74,6 +74,18 @@
#define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
#define strlencmp(a,b) (strncmp((a), (b), strlen(b)))
+/* Debugging */
+#define TPACPI_DBG_ALL 0xffff
+#define dbg_printk(a_dbg_level, format, arg...) \
+ do { if (dbg_level & a_dbg_level) \
+ printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0)
+#ifdef CONFIG_THINKPAD_ACPI_DEBUG
+#define vdbg_printk(a_dbg_level, format, arg...) \
+ dbg_printk(a_dbg_level, format, ## arg)
+#else
+#define vdbg_printk(a_dbg_level, format, arg...)
+#endif
+
/* ACPI HIDs */
#define IBM_HKEY_HID "IBM0068"
#define IBM_PCI_HID "PNP0A03"
@@ -112,6 +124,7 @@ static char *next_cmd(char **cmds);
/* Module */
static int experimental;
+static u32 dbg_level;
static char *ibm_thinkpad_ec_found;
static char* check_dmi_for_ec(void);