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author | Zhang Rui <rui.zhang@intel.com> | 2007-01-29 11:02:38 +0800 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2007-01-28 22:33:36 -0500 |
commit | 219c3c8e268b9307eae9fae4c765a0c589b98338 (patch) | |
tree | 1cec78888ba858373ca72247bf68710827eb68e0 /drivers | |
parent | b981c591891dc8885de36498d38fa8d8a5481069 (diff) | |
download | linux-stable-219c3c8e268b9307eae9fae4c765a0c589b98338.tar.gz linux-stable-219c3c8e268b9307eae9fae4c765a0c589b98338.tar.bz2 linux-stable-219c3c8e268b9307eae9fae4c765a0c589b98338.zip |
ACPI: add ACPI debug attribute in sysfs
Add ACPI debug attributes in sysfs.
/proc/acpi/debug_layer && debug_level are deprecated by
/sys/module/acpi/parameters/debug_layer && debug_level.
NOTE: The operations to them are quite the same.
E.g. if you want to enable ACPI_DB_INFO, ACPI_DB_WARN,
ACPI_DB_ERROR and disable the others,
#echo 0x13 >/sys/module/acpi/parameters/debug_level is OK,
and a boot option "acpi.debug_level = 0x13" also works.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/acpi/Kconfig | 2 | ||||
-rw-r--r-- | drivers/acpi/debug.c | 62 |
2 files changed, 59 insertions, 5 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 1f82ceba4646..a3a10737d72f 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -86,6 +86,8 @@ config ACPI_PROCFS As the same functions are duplicated in sysfs interface and this proc interface will be removed some time later, it's marked as deprecated. + ( /proc/acpi/debug_layer && debug_level are deprecated by + /sys/module/acpi/parameters/debug_layer && debug_level. ) config ACPI_AC tristate "AC Adapter" diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c index 35c6af8a83cd..d48f65a8f658 100644 --- a/drivers/acpi/debug.c +++ b/drivers/acpi/debug.c @@ -13,14 +13,11 @@ #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debug") -#define ACPI_SYSTEM_FILE_DEBUG_LAYER "debug_layer" -#define ACPI_SYSTEM_FILE_DEBUG_LEVEL "debug_level" + #ifdef MODULE_PARAM_PREFIX #undef MODULE_PARAM_PREFIX #endif -#define MODULE_PARAM_PREFIX - module_param(acpi_dbg_layer, uint, 0400); -module_param(acpi_dbg_level, uint, 0400); +#define MODULE_PARAM_PREFIX "acpi." struct acpi_dlayer { const char *name; @@ -86,6 +83,60 @@ static const struct acpi_dlevel acpi_debug_levels[] = { ACPI_DEBUG_INIT(ACPI_LV_EVENTS), }; +/* -------------------------------------------------------------------------- + FS Interface (/sys) + -------------------------------------------------------------------------- */ +static int param_get_debug_layer(char *buffer, struct kernel_param *kp) { + int result = 0; + int i; + + result = sprintf(buffer, "%-25s\tHex SET\n", "Description"); + + for(i = 0; i <ARRAY_SIZE(acpi_debug_layers); i++) { + result += sprintf(buffer+result, "%-25s\t0x%08lX [%c]\n", + acpi_debug_layers[i].name, + acpi_debug_layers[i].value, + (acpi_dbg_layer & acpi_debug_layers[i].value) ? '*' : ' '); + } + result += sprintf(buffer+result, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS", + ACPI_ALL_DRIVERS, + (acpi_dbg_layer & ACPI_ALL_DRIVERS) == + ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & + ACPI_ALL_DRIVERS) == 0 ? ' ' : '-'); + result += sprintf(buffer+result, "--\ndebug_layer = 0x%08X ( * = enabled)\n", acpi_dbg_layer); + + return result; +} + +static int param_get_debug_level(char *buffer, struct kernel_param *kp) { + int result = 0; + int i; + + result = sprintf(buffer, "%-25s\tHex SET\n", "Description"); + + for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) { + result += sprintf(buffer+result, "%-25s\t0x%08lX [%c]\n", + acpi_debug_levels[i].name, + acpi_debug_levels[i].value, + (acpi_dbg_level & acpi_debug_levels[i]. + value) ? '*' : ' '); + } + result += sprintf(buffer+result, "--\ndebug_level = 0x%08X (* = enabled)\n", + acpi_dbg_level); + + return result; +} + +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); + +/* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ +#ifdef CONFIG_ACPI_PROCFS +#define ACPI_SYSTEM_FILE_DEBUG_LAYER "debug_layer" +#define ACPI_SYSTEM_FILE_DEBUG_LEVEL "debug_level" + static int acpi_system_read_debug(char *page, char **start, off_t off, int count, int *eof, void *data) @@ -221,3 +272,4 @@ static int __init acpi_debug_init(void) } subsys_initcall(acpi_debug_init); +#endif |