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path: root/drivers/acpi/hotkey.c
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Diffstat (limited to 'drivers/acpi/hotkey.c')
-rw-r--r--drivers/acpi/hotkey.c233
1 files changed, 122 insertions, 111 deletions
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index 1f76a40bade..2e2e4051dfa 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -62,7 +62,7 @@
#define _COMPONENT ACPI_HOTKEY_COMPONENT
ACPI_MODULE_NAME("acpi_hotkey")
-MODULE_AUTHOR("luming.yu@intel.com");
+ MODULE_AUTHOR("luming.yu@intel.com");
MODULE_DESCRIPTION(ACPI_HOTK_NAME);
MODULE_LICENSE("GPL");
@@ -180,8 +180,8 @@ static int hotkey_config_seq_show(struct seq_file *seq, void *offset);
static int hotkey_poll_config_seq_show(struct seq_file *seq, void *offset);
static int hotkey_polling_open_fs(struct inode *inode, struct file *file);
static union acpi_hotkey *get_hotkey_by_event(struct
- acpi_hotkey_list
- *hotkey_list, int event);
+ acpi_hotkey_list
+ *hotkey_list, int event);
/* event based config */
static struct file_operations hotkey_config_fops = {
@@ -246,7 +246,7 @@ static int hotkey_info_open_fs(struct inode *inode, struct file *file)
static char *format_result(union acpi_object *object)
{
char *buf = NULL;
-
+
buf = (char *)kmalloc(RESULT_STR_LEN, GFP_KERNEL);
if (buf)
memset(buf, 0, RESULT_STR_LEN);
@@ -256,7 +256,7 @@ static char *format_result(union acpi_object *object)
/* Now, just support integer type */
if (object->type == ACPI_TYPE_INTEGER)
sprintf(buf, "%d\n", (u32) object->integer.value);
-do_fail:
+ do_fail:
return (buf);
}
@@ -268,9 +268,9 @@ static int hotkey_polling_seq_show(struct seq_file *seq, void *offset)
ACPI_FUNCTION_TRACE("hotkey_polling_seq_show");
- if (poll_hotkey->poll_result){
+ if (poll_hotkey->poll_result) {
buf = format_result(poll_hotkey->poll_result);
- if(buf)
+ if (buf)
seq_printf(seq, "%s", buf);
kfree(buf);
}
@@ -299,7 +299,7 @@ static int hotkey_get_internal_event(int event, struct acpi_hotkey_list *list)
union acpi_hotkey *key =
container_of(entries, union acpi_hotkey, entries);
if (key->link.hotkey_type == ACPI_HOTKEY_EVENT
- && key->event_hotkey.external_hotkey_num == event){
+ && key->event_hotkey.external_hotkey_num == event) {
val = key->link.hotkey_standard_num;
break;
}
@@ -343,7 +343,7 @@ static int auto_hotkey_remove(struct acpi_device *device, int type)
static int create_polling_proc(union acpi_hotkey *device)
{
struct proc_dir_entry *proc;
- char proc_name[80];
+ char proc_name[80];
mode_t mode;
ACPI_FUNCTION_TRACE("create_polling_proc");
@@ -351,8 +351,8 @@ static int create_polling_proc(union acpi_hotkey *device)
sprintf(proc_name, "%d", device->link.hotkey_standard_num);
/*
- strcat(proc_name, device->poll_hotkey.poll_method);
- */
+ strcat(proc_name, device->poll_hotkey.poll_method);
+ */
proc = create_proc_entry(proc_name, mode, hotkey_proc_dir);
if (!proc) {
@@ -415,50 +415,50 @@ static int hotkey_remove(union acpi_hotkey *device)
return_VALUE(0);
}
-static int hotkey_update(union acpi_hotkey *key)
+static int hotkey_update(union acpi_hotkey *key)
{
struct list_head *entries;
ACPI_FUNCTION_TRACE("hotkey_update");
list_for_each(entries, global_hotkey_list.entries) {
- union acpi_hotkey *tmp=
+ union acpi_hotkey *tmp =
container_of(entries, union acpi_hotkey, entries);
if (tmp->link.hotkey_standard_num ==
key->link.hotkey_standard_num) {
if (key->link.hotkey_type == ACPI_HOTKEY_EVENT) {
free_hotkey_buffer(tmp);
tmp->event_hotkey.bus_handle =
- key->event_hotkey.bus_handle;
+ key->event_hotkey.bus_handle;
tmp->event_hotkey.external_hotkey_num =
- key->event_hotkey.external_hotkey_num;
+ key->event_hotkey.external_hotkey_num;
tmp->event_hotkey.action_handle =
- key->event_hotkey.action_handle;
+ key->event_hotkey.action_handle;
tmp->event_hotkey.action_method =
- key->event_hotkey.action_method;
+ key->event_hotkey.action_method;
kfree(key);
} else {
/*
- char proc_name[80];
+ char proc_name[80];
- sprintf(proc_name, "%d", tmp->link.hotkey_standard_num);
- strcat(proc_name, tmp->poll_hotkey.poll_method);
- remove_proc_entry(proc_name,hotkey_proc_dir);
- */
+ sprintf(proc_name, "%d", tmp->link.hotkey_standard_num);
+ strcat(proc_name, tmp->poll_hotkey.poll_method);
+ remove_proc_entry(proc_name,hotkey_proc_dir);
+ */
free_poll_hotkey_buffer(tmp);
tmp->poll_hotkey.poll_handle =
- key->poll_hotkey.poll_handle;
+ key->poll_hotkey.poll_handle;
tmp->poll_hotkey.poll_method =
- key->poll_hotkey.poll_method;
+ key->poll_hotkey.poll_method;
tmp->poll_hotkey.action_handle =
- key->poll_hotkey.action_handle;
+ key->poll_hotkey.action_handle;
tmp->poll_hotkey.action_method =
- key->poll_hotkey.action_method;
+ key->poll_hotkey.action_method;
tmp->poll_hotkey.poll_result =
- key->poll_hotkey.poll_result;
+ key->poll_hotkey.poll_result;
/*
- create_polling_proc(tmp);
- */
+ create_polling_proc(tmp);
+ */
kfree(key);
}
return_VALUE(0);
@@ -483,27 +483,25 @@ static void free_hotkey_device(union acpi_hotkey *key)
acpi_hotkey_notify_handler);
free_hotkey_buffer(key);
} else {
- char proc_name[80];
+ char proc_name[80];
sprintf(proc_name, "%d", key->link.hotkey_standard_num);
/*
- strcat(proc_name, key->poll_hotkey.poll_method);
- */
- remove_proc_entry(proc_name,hotkey_proc_dir);
+ strcat(proc_name, key->poll_hotkey.poll_method);
+ */
+ remove_proc_entry(proc_name, hotkey_proc_dir);
free_poll_hotkey_buffer(key);
}
kfree(key);
return_VOID;
}
-static void
-free_hotkey_buffer(union acpi_hotkey *key)
+static void free_hotkey_buffer(union acpi_hotkey *key)
{
kfree(key->event_hotkey.action_method);
}
-static void
-free_poll_hotkey_buffer(union acpi_hotkey *key)
+static void free_poll_hotkey_buffer(union acpi_hotkey *key)
{
kfree(key->poll_hotkey.action_method);
kfree(key->poll_hotkey.poll_method);
@@ -513,15 +511,15 @@ static int
init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str,
char *method, int std_num, int external_num)
{
- acpi_handle tmp_handle;
+ acpi_handle tmp_handle;
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE("init_hotkey_device");
- if(std_num < 0 || IS_POLL(std_num) || !key )
+ if (std_num < 0 || IS_POLL(std_num) || !key)
goto do_fail;
- if(!bus_str || !action_str || !method)
+ if (!bus_str || !action_str || !method)
goto do_fail;
key->link.hotkey_type = ACPI_HOTKEY_EVENT;
@@ -529,19 +527,22 @@ init_hotkey_device(union acpi_hotkey *key, char *bus_str, char *action_str,
key->event_hotkey.flag = 0;
key->event_hotkey.action_method = method;
- status = acpi_get_handle(NULL,bus_str, &(key->event_hotkey.bus_handle));
- if(ACPI_FAILURE(status))
+ status =
+ acpi_get_handle(NULL, bus_str, &(key->event_hotkey.bus_handle));
+ if (ACPI_FAILURE(status))
goto do_fail;
key->event_hotkey.external_hotkey_num = external_num;
- status = acpi_get_handle(NULL,action_str, &(key->event_hotkey.action_handle));
- if(ACPI_FAILURE(status))
+ status =
+ acpi_get_handle(NULL, action_str,
+ &(key->event_hotkey.action_handle));
+ if (ACPI_FAILURE(status))
goto do_fail;
status = acpi_get_handle(key->event_hotkey.action_handle,
- method, &tmp_handle);
+ method, &tmp_handle);
if (ACPI_FAILURE(status))
goto do_fail;
return_VALUE(AE_OK);
-do_fail:
+ do_fail:
return_VALUE(-ENODEV);
}
@@ -552,14 +553,14 @@ init_poll_hotkey_device(union acpi_hotkey *key,
char *action_str, char *action_method, int std_num)
{
acpi_status status = AE_OK;
- acpi_handle tmp_handle;
+ acpi_handle tmp_handle;
ACPI_FUNCTION_TRACE("init_poll_hotkey_device");
- if(std_num < 0 || IS_EVENT(std_num) || !key)
+ if (std_num < 0 || IS_EVENT(std_num) || !key)
goto do_fail;
- if(!poll_str || !poll_method || !action_str || !action_method)
+ if (!poll_str || !poll_method || !action_str || !action_method)
goto do_fail;
key->link.hotkey_type = ACPI_HOTKEY_POLLING;
@@ -568,30 +569,32 @@ init_poll_hotkey_device(union acpi_hotkey *key,
key->poll_hotkey.poll_method = poll_method;
key->poll_hotkey.action_method = action_method;
- status = acpi_get_handle(NULL,poll_str, &(key->poll_hotkey.poll_handle));
- if(ACPI_FAILURE(status))
+ status =
+ acpi_get_handle(NULL, poll_str, &(key->poll_hotkey.poll_handle));
+ if (ACPI_FAILURE(status))
goto do_fail;
status = acpi_get_handle(key->poll_hotkey.poll_handle,
- poll_method, &tmp_handle);
- if (ACPI_FAILURE(status))
- goto do_fail;
- status = acpi_get_handle(NULL,action_str, &(key->poll_hotkey.action_handle));
+ poll_method, &tmp_handle);
+ if (ACPI_FAILURE(status))
+ goto do_fail;
+ status =
+ acpi_get_handle(NULL, action_str,
+ &(key->poll_hotkey.action_handle));
if (ACPI_FAILURE(status))
goto do_fail;
status = acpi_get_handle(key->poll_hotkey.action_handle,
- action_method, &tmp_handle);
+ action_method, &tmp_handle);
if (ACPI_FAILURE(status))
goto do_fail;
key->poll_hotkey.poll_result =
(union acpi_object *)kmalloc(sizeof(union acpi_object), GFP_KERNEL);
- if(!key->poll_hotkey.poll_result)
+ if (!key->poll_hotkey.poll_result)
goto do_fail;
return_VALUE(AE_OK);
-do_fail:
+ do_fail:
return_VALUE(-ENODEV);
}
-
static int hotkey_open_config(struct inode *inode, struct file *file)
{
ACPI_FUNCTION_TRACE("hotkey_open_config");
@@ -679,8 +682,9 @@ get_parms(char *config_record,
sscanf(config_record, "%d", cmd);
- if(*cmd == 1){
- if(sscanf(config_record, "%d:%d", cmd, internal_event_num)!=2)
+ if (*cmd == 1) {
+ if (sscanf(config_record, "%d:%d", cmd, internal_event_num) !=
+ 2)
goto do_fail;
else
return (6);
@@ -694,8 +698,8 @@ get_parms(char *config_record,
goto do_fail;
count = tmp1 - tmp;
- *bus_handle = (char *) kmalloc(count+1, GFP_KERNEL);
- if(!*bus_handle)
+ *bus_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
+ if (!*bus_handle)
goto do_fail;
strncpy(*bus_handle, tmp, count);
*(*bus_handle + count) = 0;
@@ -706,8 +710,8 @@ get_parms(char *config_record,
if (!tmp1)
goto do_fail;
count = tmp1 - tmp;
- *bus_method = (char *) kmalloc(count+1, GFP_KERNEL);
- if(!*bus_method)
+ *bus_method = (char *)kmalloc(count + 1, GFP_KERNEL);
+ if (!*bus_method)
goto do_fail;
strncpy(*bus_method, tmp, count);
*(*bus_method + count) = 0;
@@ -718,7 +722,7 @@ get_parms(char *config_record,
if (!tmp1)
goto do_fail;
count = tmp1 - tmp;
- *action_handle = (char *) kmalloc(count+1, GFP_KERNEL);
+ *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
strncpy(*action_handle, tmp, count);
*(*action_handle + count) = 0;
@@ -728,17 +732,18 @@ get_parms(char *config_record,
if (!tmp1)
goto do_fail;
count = tmp1 - tmp;
- *method = (char *) kmalloc(count+1, GFP_KERNEL);
- if(!*method)
+ *method = (char *)kmalloc(count + 1, GFP_KERNEL);
+ if (!*method)
goto do_fail;
strncpy(*method, tmp, count);
*(*method + count) = 0;
- if(sscanf(tmp1 + 1, "%d:%d", internal_event_num, external_event_num)<=0)
+ if (sscanf(tmp1 + 1, "%d:%d", internal_event_num, external_event_num) <=
+ 0)
goto do_fail;
return_VALUE(6);
-do_fail:
+ do_fail:
return_VALUE(-1);
}
@@ -758,8 +763,8 @@ static ssize_t hotkey_write_config(struct file *file,
ACPI_FUNCTION_TRACE(("hotkey_write_config"));
- config_record = (char *) kmalloc(count+1, GFP_KERNEL);
- if(!config_record)
+ config_record = (char *)kmalloc(count + 1, GFP_KERNEL);
+ if (!config_record)
return_VALUE(-ENOMEM);
if (copy_from_user(config_record, buffer, count)) {
@@ -777,10 +782,10 @@ static ssize_t hotkey_write_config(struct file *file,
&method, &internal_event_num, &external_event_num);
kfree(config_record);
- if(IS_OTHERS(internal_event_num))
+ if (IS_OTHERS(internal_event_num))
goto do_fail;
if (ret != 6) {
-do_fail:
+ do_fail:
kfree(bus_handle);
kfree(bus_method);
kfree(action_handle);
@@ -791,14 +796,14 @@ do_fail:
}
key = kmalloc(sizeof(union acpi_hotkey), GFP_KERNEL);
- if(!key)
+ if (!key)
goto do_fail;
memset(key, 0, sizeof(union acpi_hotkey));
- if(cmd == 1) {
+ if (cmd == 1) {
union acpi_hotkey *tmp = NULL;
tmp = get_hotkey_by_event(&global_hotkey_list,
- internal_event_num);
- if(!tmp)
+ internal_event_num);
+ if (!tmp)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid key"));
else
memcpy(key, tmp, sizeof(union acpi_hotkey));
@@ -807,15 +812,16 @@ do_fail:
if (IS_EVENT(internal_event_num)) {
kfree(bus_method);
ret = init_hotkey_device(key, bus_handle, action_handle, method,
- internal_event_num, external_event_num);
+ internal_event_num,
+ external_event_num);
} else
ret = init_poll_hotkey_device(key, bus_handle, bus_method,
- action_handle, method,
- internal_event_num);
+ action_handle, method,
+ internal_event_num);
if (ret) {
kfree(bus_handle);
kfree(action_handle);
- if(IS_EVENT(internal_event_num))
+ if (IS_EVENT(internal_event_num))
free_hotkey_buffer(key);
else
free_poll_hotkey_buffer(key);
@@ -824,13 +830,14 @@ do_fail:
return_VALUE(-EINVAL);
}
-cont_cmd:
+ cont_cmd:
kfree(bus_handle);
kfree(action_handle);
switch (cmd) {
case 0:
- if(get_hotkey_by_event(&global_hotkey_list,key->link.hotkey_standard_num))
+ if (get_hotkey_by_event
+ (&global_hotkey_list, key->link.hotkey_standard_num))
goto fail_out;
else
hotkey_add(key);
@@ -839,7 +846,7 @@ cont_cmd:
hotkey_remove(key);
break;
case 2:
- if(hotkey_update(key))
+ if (hotkey_update(key))
goto fail_out;
break;
default:
@@ -847,8 +854,8 @@ cont_cmd:
break;
}
return_VALUE(count);
-fail_out:
- if(IS_EVENT(internal_event_num))
+ fail_out:
+ if (IS_EVENT(internal_event_num))
free_hotkey_buffer(key);
else
free_poll_hotkey_buffer(key);
@@ -882,7 +889,8 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
return_VALUE(status == AE_OK);
}
-static int read_acpi_int(acpi_handle handle, const char *method, union acpi_object *val)
+static int read_acpi_int(acpi_handle handle, const char *method,
+ union acpi_object *val)
{
struct acpi_buffer output;
union acpi_object out_obj;
@@ -893,7 +901,7 @@ static int read_acpi_int(acpi_handle handle, const char *method, union acpi_obje
output.pointer = &out_obj;
status = acpi_evaluate_object(handle, (char *)method, NULL, &output);
- if(val){
+ if (val) {
val->integer.value = out_obj.integer.value;
val->type = out_obj.type;
} else
@@ -903,8 +911,8 @@ static int read_acpi_int(acpi_handle handle, const char *method, union acpi_obje
}
static union acpi_hotkey *get_hotkey_by_event(struct
- acpi_hotkey_list
- *hotkey_list, int event)
+ acpi_hotkey_list
+ *hotkey_list, int event)
{
struct list_head *entries;
@@ -912,10 +920,10 @@ static union acpi_hotkey *get_hotkey_by_event(struct
union acpi_hotkey *key =
container_of(entries, union acpi_hotkey, entries);
if (key->link.hotkey_standard_num == event) {
- return(key);
+ return (key);
}
}
- return(NULL);
+ return (NULL);
}
/*
@@ -932,15 +940,15 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
{
struct acpi_hotkey_list *hotkey_list = &global_hotkey_list;
char *arg;
- int event,method_type,type, value;
+ int event, method_type, type, value;
union acpi_hotkey *key;
ACPI_FUNCTION_TRACE("hotkey_execte_aml_method");
- arg = (char *) kmalloc(count+1, GFP_KERNEL);
- if(!arg)
+ arg = (char *)kmalloc(count + 1, GFP_KERNEL);
+ if (!arg)
return_VALUE(-ENOMEM);
- arg[count]=0;
+ arg[count] = 0;
if (copy_from_user(arg, buffer, count)) {
kfree(arg);
@@ -948,7 +956,8 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
return_VALUE(-EINVAL);
}
- if (sscanf(arg, "%d:%d:%d:%d", &event, &method_type, &type, &value) != 4) {
+ if (sscanf(arg, "%d:%d:%d:%d", &event, &method_type, &type, &value) !=
+ 4) {
kfree(arg);
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument 3"));
return_VALUE(-EINVAL);
@@ -956,19 +965,21 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
kfree(arg);
if (type == ACPI_TYPE_INTEGER) {
key = get_hotkey_by_event(hotkey_list, event);
- if(!key)
+ if (!key)
goto do_fail;
if (IS_EVENT(event))
write_acpi_int(key->event_hotkey.action_handle,
- key->event_hotkey.action_method, value, NULL);
+ key->event_hotkey.action_method, value,
+ NULL);
else if (IS_POLL(event)) {
- if ( method_type == POLL_METHOD )
+ if (method_type == POLL_METHOD)
read_acpi_int(key->poll_hotkey.poll_handle,
- key->poll_hotkey.poll_method,
- key->poll_hotkey.poll_result);
- else if ( method_type == ACTION_METHOD )
+ key->poll_hotkey.poll_method,
+ key->poll_hotkey.poll_result);
+ else if (method_type == ACTION_METHOD)
write_acpi_int(key->poll_hotkey.action_handle,
- key->poll_hotkey.action_method, value, NULL);
+ key->poll_hotkey.action_method,
+ value, NULL);
else
goto do_fail;
@@ -978,7 +989,7 @@ static ssize_t hotkey_execute_aml_method(struct file *file,
return_VALUE(-EINVAL);
}
return_VALUE(count);
-do_fail:
+ do_fail:
return_VALUE(-EINVAL);
}
@@ -1074,15 +1085,15 @@ static int __init hotkey_init(void)
return (0);
-do_fail5:
+ do_fail5:
remove_proc_entry(HOTKEY_INFO, hotkey_proc_dir);
-do_fail4:
+ do_fail4:
remove_proc_entry(HOTKEY_ACTION, hotkey_proc_dir);
-do_fail3:
+ do_fail3:
remove_proc_entry(HOTKEY_PL_CONFIG, hotkey_proc_dir);
-do_fail2:
+ do_fail2:
remove_proc_entry(HOTKEY_EV_CONFIG, hotkey_proc_dir);
-do_fail1:
+ do_fail1:
remove_proc_entry(HOTKEY_PROC, acpi_root_dir);
return (-ENODEV);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 13:28:00 +0000