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path: root/drivers/pci/hotplug/acpiphp.h
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Diffstat (limited to 'drivers/pci/hotplug/acpiphp.h')
-rw-r--r--drivers/pci/hotplug/acpiphp.h55
1 files changed, 27 insertions, 28 deletions
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 6fdd49c6f0b9..f4e028924667 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -49,6 +49,7 @@
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
+struct acpiphp_context;
struct acpiphp_bridge;
struct acpiphp_slot;
@@ -59,6 +60,7 @@ struct slot {
struct hotplug_slot *hotplug_slot;
struct acpiphp_slot *acpi_slot;
struct hotplug_slot_info info;
+ unsigned int sun; /* ACPI _SUN (Slot User Number) value */
};
static inline const char *slot_name(struct slot *slot)
@@ -75,15 +77,11 @@ struct acpiphp_bridge {
struct list_head list;
struct list_head slots;
struct kref ref;
- acpi_handle handle;
- /* Ejectable PCI-to-PCI bridge (PCI bridge and PCI function) */
- struct acpiphp_func *func;
+ struct acpiphp_context *context;
int nr_slots;
- u32 flags;
-
/* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */
struct pci_bus *pci_bus;
@@ -99,15 +97,13 @@ struct acpiphp_bridge {
*/
struct acpiphp_slot {
struct list_head node;
- struct acpiphp_bridge *bridge; /* parent */
+ struct pci_bus *bus;
struct list_head funcs; /* one slot may have different
objects (i.e. for each function) */
struct slot *slot;
struct mutex crit_sect;
u8 device; /* pci device# */
-
- unsigned long long sun; /* ACPI _SUN (slot unique number) */
u32 flags; /* see below */
};
@@ -119,16 +115,32 @@ struct acpiphp_slot {
* typically 8 objects per slot (i.e. for each PCI function)
*/
struct acpiphp_func {
- struct acpiphp_slot *slot; /* parent */
+ struct acpiphp_bridge *parent;
+ struct acpiphp_slot *slot;
struct list_head sibling;
- struct notifier_block nb;
- acpi_handle handle;
u8 function; /* pci function# */
u32 flags; /* see below */
};
+struct acpiphp_context {
+ acpi_handle handle;
+ struct acpiphp_func func;
+ struct acpiphp_bridge *bridge;
+ unsigned int refcount;
+};
+
+static inline struct acpiphp_context *func_to_context(struct acpiphp_func *func)
+{
+ return container_of(func, struct acpiphp_context, func);
+}
+
+static inline acpi_handle func_to_handle(struct acpiphp_func *func)
+{
+ return func_to_context(func)->handle;
+}
+
/*
* struct acpiphp_attention_info - device specific attention registration
*
@@ -142,45 +154,32 @@ struct acpiphp_attention_info
struct module *owner;
};
-/* PCI bus bridge HID */
-#define ACPI_PCI_HOST_HID "PNP0A03"
-
/* ACPI _STA method value (ignore bit 4; battery present) */
#define ACPI_STA_ALL (0x0000000f)
-/* bridge flags */
-#define BRIDGE_HAS_EJ0 (0x00000001)
-
/* slot flags */
-#define SLOT_POWEREDON (0x00000001)
-#define SLOT_ENABLED (0x00000002)
-#define SLOT_MULTIFUNCTION (0x00000004)
+#define SLOT_ENABLED (0x00000001)
/* function flags */
#define FUNC_HAS_STA (0x00000001)
#define FUNC_HAS_EJ0 (0x00000002)
-#define FUNC_HAS_PS0 (0x00000010)
-#define FUNC_HAS_PS1 (0x00000020)
-#define FUNC_HAS_PS2 (0x00000040)
-#define FUNC_HAS_PS3 (0x00000080)
-#define FUNC_HAS_DCK (0x00000100)
+#define FUNC_HAS_DCK (0x00000004)
/* function prototypes */
/* acpiphp_core.c */
int acpiphp_register_attention(struct acpiphp_attention_info*info);
int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
-int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot, unsigned int sun);
void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
/* acpiphp_glue.c */
typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
int acpiphp_enable_slot(struct acpiphp_slot *slot);
-int acpiphp_disable_slot(struct acpiphp_slot *slot);
-int acpiphp_eject_slot(struct acpiphp_slot *slot);
+int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot);
u8 acpiphp_get_power_status(struct acpiphp_slot *slot);
u8 acpiphp_get_attention_status(struct acpiphp_slot *slot);
u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);