* 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>,
- * <t-kochi@bq.jp.nec.com>
+ * Send feedback to <kristen.c.accardi@intel.com>
*
*/
#include <linux/kernel.h>
#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
-#include "pci_hotplug.h"
#include "acpiphp.h"
-static LIST_HEAD(slot_list);
-
#define MY_NAME "acpiphp"
static int debug;
/* read initial number of slots */
if (!retval) {
num_slots = acpiphp_get_num_slots();
- if (num_slots == 0)
+ if (num_slots == 0) {
+ acpiphp_glue_exit();
retval = -ENODEV;
+ }
}
return retval;
}
-
-/**
- * make_slot_name - make a slot name that appears in pcihpfs
- * @slot: slot to name
- *
- */
-static void make_slot_name(struct slot *slot)
-{
- snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%u",
- slot->acpi_slot->sun);
-}
-
/**
* release_slot - free up the memory used by a slot
* @hotplug_slot: slot to free
dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name);
- kfree(slot->hotplug_slot->info);
- kfree(slot->hotplug_slot->name);
kfree(slot->hotplug_slot);
kfree(slot);
}
-/**
- * init_slots - initialize 'struct slot' structures for each slot
- *
- */
-static int __init init_slots(void)
+/* callback routine to initialize 'struct slot' for each slot */
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
{
struct slot *slot;
int retval = -ENOMEM;
- int i;
-
- for (i = 0; i < num_slots; ++i) {
- slot = kmalloc(sizeof(struct slot), GFP_KERNEL);
- if (!slot)
- goto error;
- memset(slot, 0, sizeof(struct slot));
-
- slot->hotplug_slot = kmalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
- if (!slot->hotplug_slot)
- goto error_slot;
- memset(slot->hotplug_slot, 0, sizeof(struct hotplug_slot));
-
- slot->hotplug_slot->info = kmalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL);
- if (!slot->hotplug_slot->info)
- goto error_hpslot;
- memset(slot->hotplug_slot->info, 0, sizeof(struct hotplug_slot_info));
-
- slot->hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL);
- if (!slot->hotplug_slot->name)
- goto error_info;
-
- slot->number = i;
-
- slot->hotplug_slot->private = slot;
- slot->hotplug_slot->release = &release_slot;
- slot->hotplug_slot->ops = &acpi_hotplug_slot_ops;
-
- slot->acpi_slot = get_slot_from_id(i);
- slot->hotplug_slot->info->power_status = acpiphp_get_power_status(slot->acpi_slot);
- slot->hotplug_slot->info->attention_status = 0;
- slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot);
- slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
- slot->hotplug_slot->info->max_bus_speed = PCI_SPEED_UNKNOWN;
- slot->hotplug_slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
-
- make_slot_name(slot);
-
- retval = pci_hp_register(slot->hotplug_slot);
- if (retval) {
- err("pci_hp_register failed with error %d\n", retval);
- goto error_name;
- }
- /* add slot to our internal list */
- list_add(&slot->slot_list, &slot_list);
- info("Slot [%s] registered\n", slot->hotplug_slot->name);
- }
+ slot = kzalloc(sizeof(*slot), GFP_KERNEL);
+ if (!slot)
+ goto error;
+
+ slot->hotplug_slot = kzalloc(sizeof(*slot->hotplug_slot), GFP_KERNEL);
+ if (!slot->hotplug_slot)
+ goto error_slot;
+
+ slot->hotplug_slot->info = &slot->info;
+
+ slot->hotplug_slot->name = slot->name;
+
+ slot->hotplug_slot->private = slot;
+ slot->hotplug_slot->release = &release_slot;
+ slot->hotplug_slot->ops = &acpi_hotplug_slot_ops;
+
+ slot->acpi_slot = acpiphp_slot;
+ slot->hotplug_slot->info->power_status = acpiphp_get_power_status(slot->acpi_slot);
+ slot->hotplug_slot->info->attention_status = 0;
+ slot->hotplug_slot->info->latch_status = acpiphp_get_latch_status(slot->acpi_slot);
+ slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
+ slot->hotplug_slot->info->max_bus_speed = PCI_SPEED_UNKNOWN;
+ slot->hotplug_slot->info->cur_bus_speed = PCI_SPEED_UNKNOWN;
+
+ acpiphp_slot->slot = slot;
+ snprintf(slot->name, sizeof(slot->name), "%u", slot->acpi_slot->sun);
+
+ retval = pci_hp_register(slot->hotplug_slot);
+ if (retval) {
+ err("pci_hp_register failed with error %d\n", retval);
+ goto error_hpslot;
+ }
+
+ info("Slot [%s] registered\n", slot->hotplug_slot->name);
return 0;
-error_name:
- kfree(slot->hotplug_slot->name);
-error_info:
- kfree(slot->hotplug_slot->info);
error_hpslot:
kfree(slot->hotplug_slot);
error_slot:
}
-static void __exit cleanup_slots (void)
+void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
{
- struct list_head *tmp, *n;
- struct slot *slot;
+ struct slot *slot = acpiphp_slot->slot;
+ int retval = 0;
- list_for_each_safe (tmp, n, &slot_list) {
- /* memory will be freed in release_slot callback */
- slot = list_entry(tmp, struct slot, slot_list);
- list_del(&slot->slot_list);
- pci_hp_deregister(slot->hotplug_slot);
- }
+ info ("Slot [%s] unregistered\n", slot->hotplug_slot->name);
+
+ retval = pci_hp_deregister(slot->hotplug_slot);
+ if (retval)
+ err("pci_hp_deregister failed with error %d\n", retval);
}
static int __init acpiphp_init(void)
{
- int retval;
-
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
acpiphp_debug = debug;
/* read all the ACPI info from the system */
- retval = init_acpi();
- if (retval)
- return retval;
-
- return init_slots();
+ return init_acpi();
}
static void __exit acpiphp_exit(void)
{
- cleanup_slots();
/* deallocate internal data structures etc. */
acpiphp_glue_exit();
}
git://git.onelab.eu / linux-2.6.git / blobdiff