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authorZhang Rui2008-04-10 19:06:44 +0400
committerLen Brown2008-04-22 23:01:36 -0400
commit514d18d79b1da052ed4553ceec1f7e1197a5bb51 (patch)
treeb474e49f1614e73a2b7ad671b56c89c5e875d89a /drivers/acpi
parent66d3ca9ea28e1b3d591083772fd797b9b46410b8 (diff)
ACPICA: Update for new Notify values
Implemented several changes for Notify handling: Added support for new Notify values (ACPI 2.0+) and improved the Notify debug output. Notify on PowerResource objects is no longer allowed, as per the ACPI specification. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/events/evmisc.c59
-rw-r--r--drivers/acpi/utilities/utglobal.c42
2 files changed, 65 insertions, 36 deletions
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 4e7a13afe80c..16cf2700c16f 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -49,22 +49,7 @@
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evmisc")
-/* Names for Notify() values, used for debug output */
-#ifdef ACPI_DEBUG_OUTPUT
-static const char *acpi_notify_value_names[] = {
- "Bus Check",
- "Device Check",
- "Device Wake",
- "Eject Request",
- "Device Check Light",
- "Frequency Mismatch",
- "Bus Mode Mismatch",
- "Power Fault"
-};
-#endif
-
/* Pointer to FACS needed for the Global Lock */
-
static struct acpi_table_facs *facs = NULL;
/* Local prototypes */
@@ -94,7 +79,6 @@ u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node)
switch (node->type) {
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_POWER:
case ACPI_TYPE_THERMAL:
/*
* These are the ONLY objects that can receive ACPI notifications
@@ -139,17 +123,9 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
* initiate soft-off or sleep operation?
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Dispatching Notify(%X) on node %p\n", notify_value,
- node));
-
- if (notify_value <= 7) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notify value: %s\n",
- acpi_notify_value_names[notify_value]));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Notify value: 0x%2.2X **Device Specific**\n",
- notify_value));
- }
+ "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n",
+ acpi_ut_get_node_name(node), node, notify_value,
+ acpi_ut_get_notify_name(notify_value)));
/* Get the notify object attached to the NS Node */
@@ -159,10 +135,12 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
/* We have the notify object, Get the right handler */
switch (node->type) {
+
+ /* Notify allowed only on these types */
+
case ACPI_TYPE_DEVICE:
case ACPI_TYPE_THERMAL:
case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_POWER:
if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
handler_obj =
@@ -179,8 +157,13 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
}
}
- /* If there is any handler to run, schedule the dispatcher */
-
+ /*
+ * If there is any handler to run, schedule the dispatcher.
+ * Check for:
+ * 1) Global system notify handler
+ * 2) Global device notify handler
+ * 3) Per-device notify handler
+ */
if ((acpi_gbl_system_notify.handler
&& (notify_value <= ACPI_MAX_SYS_NOTIFY))
|| (acpi_gbl_device_notify.handler
@@ -190,6 +173,13 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
return (AE_NO_MEMORY);
}
+ if (!handler_obj) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Executing system notify handler for Notify (%4.4s, %X) node %p\n",
+ acpi_ut_get_node_name(node),
+ notify_value, node));
+ }
+
notify_info->common.descriptor_type =
ACPI_DESC_TYPE_STATE_NOTIFY;
notify_info->notify.node = node;
@@ -202,15 +192,12 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
if (ACPI_FAILURE(status)) {
acpi_ut_delete_generic_state(notify_info);
}
- }
-
- if (!handler_obj) {
+ } else {
/*
- * There is no per-device notify handler for this device.
- * This may or may not be a problem.
+ * There is no notify handler (per-device or system) for this device.
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "No notify handler for Notify(%4.4s, %X) node %p\n",
+ "No notify handler for Notify (%4.4s, %X) node %p\n",
acpi_ut_get_node_name(node), notify_value,
node));
}
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index d2097ded262d..d0226fedb004 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -602,6 +602,48 @@ char *acpi_ut_get_mutex_name(u32 mutex_id)
return (acpi_gbl_mutex_names[mutex_id]);
}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_notify_name
+ *
+ * PARAMETERS: notify_value - Value from the Notify() request
+ *
+ * RETURN: String corresponding to the Notify Value.
+ *
+ * DESCRIPTION: Translate a Notify Value to a notify namestring.
+ *
+ ******************************************************************************/
+
+/* Names for Notify() values, used for debug output */
+
+static const char *acpi_gbl_notify_value_names[] = {
+ "Bus Check",
+ "Device Check",
+ "Device Wake",
+ "Eject Request",
+ "Device Check Light",
+ "Frequency Mismatch",
+ "Bus Mode Mismatch",
+ "Power Fault",
+ "Capabilities Check",
+ "Device PLD Check",
+ "Reserved",
+ "System Locality Update"
+};
+
+const char *acpi_ut_get_notify_name(u32 notify_value)
+{
+
+ if (notify_value <= ACPI_NOTIFY_MAX) {
+ return (acpi_gbl_notify_value_names[notify_value]);
+ } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
+ return ("Reserved");
+ } else { /* Greater or equal to 0x80 */
+
+ return ("**Device Specific**");
+ }
+}
#endif
/*******************************************************************************