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path: root/drivers/acpi/container.c
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Diffstat (limited to 'drivers/acpi/container.c')
-rw-r--r--drivers/acpi/container.c128
1 files changed, 56 insertions, 72 deletions
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 97013ddfa20..10dd695a1dd 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -44,9 +44,9 @@
#define ACPI_CONTAINER_COMPONENT 0x01000000
#define _COMPONENT ACPI_CONTAINER_COMPONENT
-ACPI_MODULE_NAME ("acpi_container")
+ACPI_MODULE_NAME("acpi_container")
-MODULE_AUTHOR("Anil S Keshavamurthy");
+ MODULE_AUTHOR("Anil S Keshavamurthy");
MODULE_DESCRIPTION(ACPI_CONTAINER_DRIVER_NAME);
MODULE_LICENSE("GPL");
@@ -56,41 +56,38 @@ static int acpi_container_add(struct acpi_device *device);
static int acpi_container_remove(struct acpi_device *device, int type);
static struct acpi_driver acpi_container_driver = {
- .name = ACPI_CONTAINER_DRIVER_NAME,
- .class = ACPI_CONTAINER_CLASS,
- .ids = "ACPI0004,PNP0A05,PNP0A06",
- .ops = {
- .add = acpi_container_add,
- .remove = acpi_container_remove,
- },
+ .name = ACPI_CONTAINER_DRIVER_NAME,
+ .class = ACPI_CONTAINER_CLASS,
+ .ids = "ACPI0004,PNP0A05,PNP0A06",
+ .ops = {
+ .add = acpi_container_add,
+ .remove = acpi_container_remove,
+ },
};
-
/*******************************************************************/
-static int
-is_device_present(acpi_handle handle)
+static int is_device_present(acpi_handle handle)
{
- acpi_handle temp;
- acpi_status status;
- unsigned long sta;
+ acpi_handle temp;
+ acpi_status status;
+ unsigned long sta;
ACPI_FUNCTION_TRACE("is_device_present");
status = acpi_get_handle(handle, "_STA", &temp);
if (ACPI_FAILURE(status))
- return_VALUE(1); /* _STA not found, assmue device present */
+ return_VALUE(1); /* _STA not found, assmue device present */
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status))
- return_VALUE(0); /* Firmware error */
+ return_VALUE(0); /* Firmware error */
return_VALUE((sta & ACPI_STA_PRESENT) == ACPI_STA_PRESENT);
}
/*******************************************************************/
-static int
-acpi_container_add(struct acpi_device *device)
+static int acpi_container_add(struct acpi_device *device)
{
struct acpi_container *container;
@@ -102,28 +99,26 @@ acpi_container_add(struct acpi_device *device)
}
container = kmalloc(sizeof(struct acpi_container), GFP_KERNEL);
- if(!container)
+ if (!container)
return_VALUE(-ENOMEM);
-
+
memset(container, 0, sizeof(struct acpi_container));
container->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_CONTAINER_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_CONTAINER_CLASS);
acpi_driver_data(device) = container;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device <%s> bid <%s>\n", \
- acpi_device_name(device), acpi_device_bid(device)));
-
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device <%s> bid <%s>\n",
+ acpi_device_name(device), acpi_device_bid(device)));
return_VALUE(0);
}
-static int
-acpi_container_remove(struct acpi_device *device, int type)
+static int acpi_container_remove(struct acpi_device *device, int type)
{
- acpi_status status = AE_OK;
- struct acpi_container *pc = NULL;
- pc = (struct acpi_container*) acpi_driver_data(device);
+ acpi_status status = AE_OK;
+ struct acpi_container *pc = NULL;
+ pc = (struct acpi_container *)acpi_driver_data(device);
if (pc)
kfree(pc);
@@ -131,9 +126,7 @@ acpi_container_remove(struct acpi_device *device, int type)
return status;
}
-
-static int
-container_device_add(struct acpi_device **device, acpi_handle handle)
+static int container_device_add(struct acpi_device **device, acpi_handle handle)
{
acpi_handle phandle;
struct acpi_device *pdev;
@@ -158,10 +151,9 @@ container_device_add(struct acpi_device **device, acpi_handle handle)
return_VALUE(result);
}
-static void
-container_notify_cb(acpi_handle handle, u32 type, void *context)
+static void container_notify_cb(acpi_handle handle, u32 type, void *context)
{
- struct acpi_device *device = NULL;
+ struct acpi_device *device = NULL;
int result;
int present;
acpi_status status;
@@ -169,14 +161,14 @@ container_notify_cb(acpi_handle handle, u32 type, void *context)
ACPI_FUNCTION_TRACE("container_notify_cb");
present = is_device_present(handle);
-
+
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
/* Fall through */
case ACPI_NOTIFY_DEVICE_CHECK:
printk("Container driver received %s event\n",
- (type == ACPI_NOTIFY_BUS_CHECK)?
- "ACPI_NOTIFY_BUS_CHECK":"ACPI_NOTIFY_DEVICE_CHECK");
+ (type == ACPI_NOTIFY_BUS_CHECK) ?
+ "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK");
status = acpi_bus_get_device(handle, &device);
if (present) {
if (ACPI_FAILURE(status) || !device) {
@@ -207,15 +199,13 @@ container_notify_cb(acpi_handle handle, u32 type, void *context)
static acpi_status
container_walk_namespace_cb(acpi_handle handle,
- u32 lvl,
- void *context,
- void **rv)
+ u32 lvl, void *context, void **rv)
{
- char *hid = NULL;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- struct acpi_device_info *info;
- acpi_status status;
- int *action = context;
+ char *hid = NULL;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_device_info *info;
+ acpi_status status;
+ int *action = context;
ACPI_FUNCTION_TRACE("container_walk_namespace_cb");
@@ -233,66 +223,60 @@ container_walk_namespace_cb(acpi_handle handle,
}
if (strcmp(hid, "ACPI0004") && strcmp(hid, "PNP0A05") &&
- strcmp(hid, "PNP0A06")) {
+ strcmp(hid, "PNP0A06")) {
goto end;
}
- switch(*action) {
+ switch (*action) {
case INSTALL_NOTIFY_HANDLER:
acpi_install_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- container_notify_cb,
- NULL);
+ ACPI_SYSTEM_NOTIFY,
+ container_notify_cb, NULL);
break;
case UNINSTALL_NOTIFY_HANDLER:
acpi_remove_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- container_notify_cb);
+ ACPI_SYSTEM_NOTIFY,
+ container_notify_cb);
break;
default:
break;
}
-end:
+ end:
acpi_os_free(buffer.pointer);
return_ACPI_STATUS(AE_OK);
}
-
-static int __init
-acpi_container_init(void)
+static int __init acpi_container_init(void)
{
- int result = 0;
- int action = INSTALL_NOTIFY_HANDLER;
+ int result = 0;
+ int action = INSTALL_NOTIFY_HANDLER;
result = acpi_bus_register_driver(&acpi_container_driver);
if (result < 0) {
- return(result);
+ return (result);
}
/* register notify handler to every container device */
acpi_walk_namespace(ACPI_TYPE_DEVICE,
- ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- container_walk_namespace_cb,
- &action, NULL);
+ ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX,
+ container_walk_namespace_cb, &action, NULL);
- return(0);
+ return (0);
}
-static void __exit
-acpi_container_exit(void)
+static void __exit acpi_container_exit(void)
{
- int action = UNINSTALL_NOTIFY_HANDLER;
+ int action = UNINSTALL_NOTIFY_HANDLER;
ACPI_FUNCTION_TRACE("acpi_container_exit");
acpi_walk_namespace(ACPI_TYPE_DEVICE,
- ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- container_walk_namespace_cb,
- &action, NULL);
+ ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX,
+ container_walk_namespace_cb, &action, NULL);
acpi_bus_unregister_driver(&acpi_container_driver);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-22 09:23:20 +0000