ACPI: acpiphp update (Takayoshi Kochi)

drivers/pci/hotplug/acpiphp.h

@@ -5,8 +5,8 @@
  * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (c) 2001 IBM Corp.
  * Copyright (c) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (c) 2002 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
- * Copyright (c) 2002 NEC Corporation
+ * Copyright (c) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
+ * Copyright (c) 2002,2003 NEC Corporation
  *
  * All rights reserved.
  *
@@ -26,8 +26,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * Send feedback to <gregkh@us.ibm.com>,
- *		    <h-aono@ap.jp.nec.com>,
- *		    <t-kouchi@cq.jp.nec.com>
+ *		    <t-kochi@bq.jp.nec.com>
  *
  */
 
@@ -35,6 +34,7 @@
 #define _ACPIPHP_H
 
 #include <linux/acpi.h>
+#include <linux/kobject.h>	/* for KOBJ_NAME_LEN */
 #include "pci_hotplug.h"
 
 #define dbg(format, arg...)					\
@@ -49,7 +49,7 @@
 
 #define SLOT_MAGIC	0x67267322
 /* name size which is used for entries in pcihpfs */
-#define SLOT_NAME_SIZE	32		/* ACPI{_SUN}-{BUS}:{DEV} */
+#define SLOT_NAME_SIZE	KOBJ_NAME_LEN		/* {_SUN} */
 
 struct acpiphp_bridge;
 struct acpiphp_slot;
@@ -212,11 +212,7 @@ struct acpiphp_func {
 #define FUNC_HAS_PS2		(0x00000040)
 #define FUNC_HAS_PS3		(0x00000080)
 
-/* not yet */
-#define SLOT_SUPPORT_66MHZ	(0x00010000)
-#define SLOT_SUPPORT_100MHZ	(0x00020000)
-#define SLOT_SUPPORT_133MHZ	(0x00040000)
-#define SLOT_SUPPORT_PCIX	(0x00080000)
+#define FUNC_EXISTS		(0x10000000) /* to make sure we call _EJ0 only for existing funcs */
 
 /* function prototypes */
 

drivers/pci/hotplug/acpiphp_core.c

@@ -5,8 +5,8 @@
  * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (c) 2001 IBM Corp.
  * Copyright (c) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (c) 2002 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
- * Copyright (c) 2002 NEC Corporation
+ * Copyright (c) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
+ * Copyright (c) 2002,2003 NEC Corporation
  *
  * All rights reserved.
  *
@@ -26,8 +26,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * Send feedback to <gregkh@us.ibm.com>,
- *                  <h-aono@ap.jp.nec.com>,
- *		    <t-kouchi@cq.jp.nec.com>
+ *		    <t-kochi@bq.jp.nec.com>
  *
  */
 
@@ -57,7 +56,7 @@ int acpiphp_debug;
 static int num_slots;
 
 #define DRIVER_VERSION	"0.4"
-#define DRIVER_AUTHOR	"Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kouchi@cq.jp.nec.com>"
+#define DRIVER_AUTHOR	"Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kochi@bq.jp.nec.com>"
 #define DRIVER_DESC	"ACPI Hot Plug PCI Controller Driver"
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -376,10 +375,8 @@ static int init_acpi (void)
  */
 static void make_slot_name (struct slot *slot)
 {
-	snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "ACPI%d-%02x:%02x",
-		 slot->acpi_slot->sun,
-		 slot->acpi_slot->bridge->bus,
-		 slot->acpi_slot->device);
+	snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%u",
+		 slot->acpi_slot->sun);
 }
 
 /**

drivers/pci/hotplug/acpiphp_glue.c

 /*
  * ACPI PCI HotPlug glue functions to ACPI CA subsystem
  *
- * Copyright (c) 2002 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
+ * Copyright (c) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
  * Copyright (c) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (c) 2002 NEC Corporation
+ * Copyright (c) 2002,2003 NEC Corporation
  *
  * All rights reserved.
  *
@@ -22,7 +22,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Send feedback to <t-kouchi@cq.jp.nec.com>
+ * Send feedback to <t-kochi@bq.jp.nec.com>
  *
  */
 
@@ -204,7 +204,6 @@ register_slot (acpi_handle handle, u32 lvl, void *context, void **rv)
 
 	if (ACPI_FAILURE(status)) {
 		err("failed to register interrupt notify handler\n");
-		kfree(newfunc);
 		return status;
 	}
 
@@ -617,9 +616,8 @@ find_p2p_bridge (acpi_handle handle, u32 lvl, void *context, void **rv)
 
 
 /* find hot-pluggable slots, and then find P2P bridge */
-static int add_bridges(struct acpi_device *device)
+static int add_bridge(acpi_handle handle)
 {
-	acpi_handle *handle = device->handle;
 	acpi_status status;
 	unsigned long tmp;
 	int seg, bus;
@@ -673,6 +671,12 @@ static int add_bridges(struct acpi_device *device)
 }
 
 
+static void remove_bridge (acpi_handle handle)
+{
+	/* No-op for now .. */
+}
+
+
 static int power_on_slot (struct acpiphp_slot *slot)
 {
 	acpi_status status;
@@ -725,9 +729,7 @@ static int power_off_slot (struct acpiphp_slot *slot)
 	list_for_each (l, &slot->funcs) {
 		func = list_entry(l, struct acpiphp_func, sibling);
 
-		if (func->flags & FUNC_HAS_PS3) {
-			dbg("%s: executing _PS3 on %s\n", __FUNCTION__,
-			    func->pci_dev->slot_name);
+		if (func->flags & (FUNC_HAS_PS3 | FUNC_EXISTS)) {
 			status = acpi_evaluate_object(func->handle, "_PS3", NULL, NULL);
 			if (ACPI_FAILURE(status)) {
 				warn("%s: _PS3 failed\n", __FUNCTION__);
@@ -740,10 +742,8 @@ static int power_off_slot (struct acpiphp_slot *slot)
 	list_for_each (l, &slot->funcs) {
 		func = list_entry(l, struct acpiphp_func, sibling);
 
-		if (func->flags & FUNC_HAS_EJ0) {
-			dbg("%s: executing _EJ0 on %s\n", __FUNCTION__,
-			    func->pci_dev->slot_name);
-
+		/* We don't want to call _EJ0 on non-existing functions. */
+		if (func->flags & (FUNC_HAS_EJ0 | FUNC_EXISTS)) {
 			/* _EJ0 method take one argument */
 			arg_list.count = 1;
 			arg_list.pointer = &arg;
@@ -756,6 +756,7 @@ static int power_off_slot (struct acpiphp_slot *slot)
 				retval = -1;
 				goto err_exit;
 			}
+			func->flags &= (~FUNC_EXISTS);
 		}
 	}
 
@@ -835,6 +836,8 @@ static int enable_device (struct acpiphp_slot *slot)
 		retval = acpiphp_configure_function(func);
 		if (retval)
 			goto err_exit;
+
+		func->flags |= FUNC_EXISTS;
 	}
 
 	slot->flags |= SLOT_ENABLED;
@@ -1029,13 +1032,10 @@ static void handle_hotplug_event_func (acpi_handle handle, u32 type, void *conte
 	}
 }
 
-static struct acpi_driver acpi_pci_hp_driver = {
-	.name =		"pci_hp",
-	.class =	"",
-	.ids =		ACPI_PCI_HOST_HID,
-	.ops =	{
-		.add =	add_bridges,
-	}
+
+static struct acpi_pci_driver acpi_pci_hp_driver = {
+	.add =		add_bridge,
+	.remove =	remove_bridge,
 };
 
 /**
@@ -1044,17 +1044,15 @@ static struct acpi_driver acpi_pci_hp_driver = {
  */
 int acpiphp_glue_init (void)
 {
-	acpi_status status;
+	int num;
 
 	if (list_empty(&pci_root_buses))
 		return -1;
 
-	status = acpi_bus_register_driver(&acpi_pci_hp_driver);
+	num = acpi_pci_register_driver(&acpi_pci_hp_driver);
 
-	if (ACPI_FAILURE(status)) {
-		err("%s: acpi_walk_namespace() failed\n", __FUNCTION__);
+	if (num <= 0)
 		return -1;
-	}
 
 	return 0;
 }

drivers/pci/hotplug/acpiphp_pci.c

@@ -4,7 +4,7 @@
  * Copyright (c) 1995,2001 Compaq Computer Corporation
  * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (c) 2001,2002 IBM Corp.
- * Copyright (c) 2002 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
+ * Copyright (c) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
  * Copyright (c) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
  * Copyright (c) 2002 NEC Corporation
  *
@@ -25,7 +25,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Send feedback to <t-kouchi@cq.jp.nec.com>
+ * Send feedback to <t-kochi@bq.jp.nec.com>
  *
  */
 

drivers/pci/hotplug/acpiphp_res.c

@@ -5,7 +5,7 @@
  * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (c) 2001 IBM Corp.
  * Copyright (c) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
- * Copyright (c) 2002 Takayoshi Kochi (t-kouchi@cq.jp.nec.com)
+ * Copyright (c) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
  * Copyright (c) 2002 NEC Corporation
  *
  * All rights reserved.
@@ -25,7 +25,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Send feedback to <gregkh@us.ibm.com>,<h-aono@ap.jp.nec.com>
+ * Send feedback to <gregkh@us.ibm.com>, <t-kochi@bq.jp.nec.com>
  *
  */
 

include/linux/acpi.h

@@ -403,8 +403,8 @@ int acpi_pci_irq_init (void);
 
 struct acpi_pci_driver {
 	struct acpi_pci_driver *next;
-	int (*add)(acpi_handle *handle);
-	void (*remove)(acpi_handle *handle);
+	int (*add)(acpi_handle handle);
+	void (*remove)(acpi_handle handle);
 };
 
 int acpi_pci_register_driver(struct acpi_pci_driver *driver);