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path: root/drivers/acpi/debug.c
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Diffstat (limited to 'drivers/acpi/debug.c')
-rw-r--r--drivers/acpi/debug.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
deleted file mode 100644
index 295dbfa2db9..00000000000
--- a/drivers/acpi/debug.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*
- * debug.c - ACPI debug interface to userspace.
- */
-
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-#include <asm/uaccess.h>
-#include <acpi/acpi_drivers.h>
-
-#define _COMPONENT ACPI_SYSTEM_COMPONENT
-ACPI_MODULE_NAME("debug");
-
-struct acpi_dlayer {
- const char *name;
- unsigned long value;
-};
-struct acpi_dlevel {
- const char *name;
- unsigned long value;
-};
-#define ACPI_DEBUG_INIT(v) { .name = #v, .value = v }
-
-static const struct acpi_dlayer acpi_debug_layers[] = {
- ACPI_DEBUG_INIT(ACPI_UTILITIES),
- ACPI_DEBUG_INIT(ACPI_HARDWARE),
- ACPI_DEBUG_INIT(ACPI_EVENTS),
- ACPI_DEBUG_INIT(ACPI_TABLES),
- ACPI_DEBUG_INIT(ACPI_NAMESPACE),
- ACPI_DEBUG_INIT(ACPI_PARSER),
- ACPI_DEBUG_INIT(ACPI_DISPATCHER),
- ACPI_DEBUG_INIT(ACPI_EXECUTER),
- ACPI_DEBUG_INIT(ACPI_RESOURCES),
- ACPI_DEBUG_INIT(ACPI_CA_DEBUGGER),
- ACPI_DEBUG_INIT(ACPI_OS_SERVICES),
- ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
- ACPI_DEBUG_INIT(ACPI_COMPILER),
- ACPI_DEBUG_INIT(ACPI_TOOLS),
-
- ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
- ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
-};
-
-static const struct acpi_dlevel acpi_debug_levels[] = {
- ACPI_DEBUG_INIT(ACPI_LV_INIT),
- ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
- ACPI_DEBUG_INIT(ACPI_LV_INFO),
-
- ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
- ACPI_DEBUG_INIT(ACPI_LV_PARSE),
- ACPI_DEBUG_INIT(ACPI_LV_LOAD),
- ACPI_DEBUG_INIT(ACPI_LV_DISPATCH),
- ACPI_DEBUG_INIT(ACPI_LV_EXEC),
- ACPI_DEBUG_INIT(ACPI_LV_NAMES),
- ACPI_DEBUG_INIT(ACPI_LV_OPREGION),
- ACPI_DEBUG_INIT(ACPI_LV_BFIELD),
- ACPI_DEBUG_INIT(ACPI_LV_TABLES),
- ACPI_DEBUG_INIT(ACPI_LV_VALUES),
- ACPI_DEBUG_INIT(ACPI_LV_OBJECTS),
- ACPI_DEBUG_INIT(ACPI_LV_RESOURCES),
- ACPI_DEBUG_INIT(ACPI_LV_USER_REQUESTS),
- ACPI_DEBUG_INIT(ACPI_LV_PACKAGE),
-
- ACPI_DEBUG_INIT(ACPI_LV_ALLOCATIONS),
- ACPI_DEBUG_INIT(ACPI_LV_FUNCTIONS),
- ACPI_DEBUG_INIT(ACPI_LV_OPTIMIZATIONS),
-
- ACPI_DEBUG_INIT(ACPI_LV_MUTEX),
- ACPI_DEBUG_INIT(ACPI_LV_THREADS),
- ACPI_DEBUG_INIT(ACPI_LV_IO),
- ACPI_DEBUG_INIT(ACPI_LV_INTERRUPTS),
-
- ACPI_DEBUG_INIT(ACPI_LV_AML_DISASSEMBLE),
- ACPI_DEBUG_INIT(ACPI_LV_VERBOSE_INFO),
- ACPI_DEBUG_INIT(ACPI_LV_FULL_TABLES),
- ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
-};
-
-/* --------------------------------------------------------------------------
- FS Interface (/sys)
- -------------------------------------------------------------------------- */
-static int param_get_debug_layer(char *buffer, const 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, const 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;
-}
-
-static struct kernel_param_ops acpi_debug_layer_ops = {
- .set = param_set_uint,
- .get = param_get_debug_layer,
-};
-
-static struct kernel_param_ops acpi_debug_level_ops = {
- .set = param_set_uint,
- .get = param_get_debug_level,
-};
-
-module_param_cb(debug_layer, &acpi_debug_layer_ops, &acpi_dbg_layer, 0644);
-module_param_cb(debug_level, &acpi_debug_level_ops, &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, const 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, const 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;
-}
-
-static struct kernel_param_ops param_ops_trace_state = {
- .set = param_set_trace_state,
- .get = param_get_trace_state,
-};
-
-module_param_cb(trace_state, &param_ops_trace_state, NULL, 0644);
-
-/* --------------------------------------------------------------------------
- DebugFS Interface
- -------------------------------------------------------------------------- */
-
-static ssize_t cm_write(struct file *file, const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- static char *buf;
- static int uncopied_bytes;
- struct acpi_table_header table;
- acpi_status status;
-
- if (!(*ppos)) {
- /* parse the table header to get the table length */
- if (count <= sizeof(struct acpi_table_header))
- return -EINVAL;
- if (copy_from_user(&table, user_buf,
- sizeof(struct acpi_table_header)))
- return -EFAULT;
- uncopied_bytes = table.length;
- buf = kzalloc(uncopied_bytes, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- }
-
- if (uncopied_bytes < count) {
- kfree(buf);
- return -EINVAL;
- }
-
- if (copy_from_user(buf + (*ppos), user_buf, count)) {
- kfree(buf);
- return -EFAULT;
- }
-
- uncopied_bytes -= count;
- *ppos += count;
-
- if (!uncopied_bytes) {
- status = acpi_install_method(buf);
- kfree(buf);
- if (ACPI_FAILURE(status))
- return -EINVAL;
- add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
- }
-
- return count;
-}
-
-static const struct file_operations cm_fops = {
- .write = cm_write,
-};
-
-static int acpi_debugfs_init(void)
-{
- struct dentry *acpi_dir, *cm_dentry;
-
- acpi_dir = debugfs_create_dir("acpi", NULL);
- if (!acpi_dir)
- goto err;
-
- cm_dentry = debugfs_create_file("custom_method", S_IWUGO,
- acpi_dir, NULL, &cm_fops);
- if (!cm_dentry)
- goto err;
-
- return 0;
-
-err:
- if (acpi_dir)
- debugfs_remove(acpi_dir);
- return -EINVAL;
-}
-
-/* --------------------------------------------------------------------------
- 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_debug_proc_show(struct seq_file *m, void *v)
-{
- unsigned int i;
-
- seq_printf(m, "%-25s\tHex SET\n", "Description");
-
- switch ((unsigned long)m->private) {
- case 0:
- for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
- seq_printf(m, "%-25s\t0x%08lX [%c]\n",
- acpi_debug_layers[i].name,
- acpi_debug_layers[i].value,
- (acpi_dbg_layer & acpi_debug_layers[i].
- value) ? '*' : ' ');
- }
- seq_printf(m, "%-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 ? ' ' : '-');
- seq_printf(m,
- "--\ndebug_layer = 0x%08X (* = enabled, - = partial)\n",
- acpi_dbg_layer);
- break;
- case 1:
- for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
- seq_printf(m, "%-25s\t0x%08lX [%c]\n",
- acpi_debug_levels[i].name,
- acpi_debug_levels[i].value,
- (acpi_dbg_level & acpi_debug_levels[i].
- value) ? '*' : ' ');
- }
- seq_printf(m, "--\ndebug_level = 0x%08X (* = enabled)\n",
- acpi_dbg_level);
- break;
- }
- return 0;
-}
-
-static int acpi_system_debug_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_system_debug_proc_show, PDE(inode)->data);
-}
-
-static ssize_t acpi_system_debug_proc_write(struct file *file,
- const char __user * buffer,
- size_t count, loff_t *pos)
-{
- char debug_string[12] = { '\0' };
-
-
- if (count > sizeof(debug_string) - 1)
- return -EINVAL;
-
- if (copy_from_user(debug_string, buffer, count))
- return -EFAULT;
-
- debug_string[count] = '\0';
-
- switch ((unsigned long)PDE(file->f_path.dentry->d_inode)->data) {
- case 0:
- acpi_dbg_layer = simple_strtoul(debug_string, NULL, 0);
- break;
- case 1:
- acpi_dbg_level = simple_strtoul(debug_string, NULL, 0);
- break;
- default:
- return -EINVAL;
- }
-
- return count;
-}
-
-static const struct file_operations acpi_system_debug_proc_fops = {
- .owner = THIS_MODULE,
- .open = acpi_system_debug_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = acpi_system_debug_proc_write,
-};
-#endif
-
-int __init acpi_procfs_init(void)
-{
-#ifdef CONFIG_ACPI_PROCFS
- struct proc_dir_entry *entry;
- int error = 0;
- char *name;
-
- /* 'debug_layer' [R/W] */
- name = ACPI_SYSTEM_FILE_DEBUG_LAYER;
- entry = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_debug_proc_fops,
- (void *)0);
- if (!entry)
- goto Error;
-
- /* 'debug_level' [R/W] */
- name = ACPI_SYSTEM_FILE_DEBUG_LEVEL;
- entry = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_debug_proc_fops,
- (void *)1);
- if (!entry)
- goto Error;
-
- Done:
- return error;
-
- Error:
- remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LEVEL, acpi_root_dir);
- remove_proc_entry(ACPI_SYSTEM_FILE_DEBUG_LAYER, acpi_root_dir);
- error = -ENODEV;
- goto Done;
-#else
- return 0;
-#endif
-}
-
-int __init acpi_debug_init(void)
-{
- acpi_debugfs_init();
- acpi_procfs_init();
- return 0;
-}
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