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Commit 132ce091 authored by Henrique de Moraes Holschuh's avatar Henrique de Moraes Holschuh Committed by Len Brown
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ACPI: thinkpad-acpi: add debug mode 



Add a debug mode parameter and verbose debug mode Kconfig option.

Signed-off-by: default avatarHenrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent f51d1a39

Documentation/thinkpad-acpi.txt

+13 −0
Original line number Diff line number Diff line
@@ -699,3 +699,16 @@ for example: 


	modprobe thinkpad_acpi hotkey=enable,0xffff video=auto_disable



Enabling debugging output

-------------------------



The module takes a debug paramater which can be used to selectively

enable various classes of debugging output, for example:



	 modprobe ibm_acpi debug=0xffff



will enable all debugging output classes.  It takes a bitmask, so

to enable more than one output class, just add their values.



There is also a kernel build option to enable more debugging

information, which may be necessary to debug driver problems.

drivers/misc/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -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

drivers/misc/thinkpad_acpi.c

+3 −0
Original line number Diff line number Diff line
@@ -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)

drivers/misc/thinkpad_acpi.h

+13 −0
Original line number Diff line number Diff line
@@ -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);