diff options
author | Kristen Accardi <kristen.c.accardi@intel.com> | 2006-02-23 17:56:03 -0800 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-23 14:35:15 -0800 |
commit | 20416ea54087c25502d6fb973b8e119973e16341 (patch) | |
tree | 47ca50997cbb408852021315ff4da315292467c2 /drivers/pci/hotplug/acpiphp.h | |
parent | ceaba663055e38226a070a9668eac5881d65a2cc (diff) | |
download | op-kernel-dev-20416ea54087c25502d6fb973b8e119973e16341.zip op-kernel-dev-20416ea54087c25502d6fb973b8e119973e16341.tar.gz |
[PATCH] acpiphp: add dock event handling
These patches add generic dock event handling to acpiphp. If there are
pci devices that need to be inserted/removed after the dock event, the
event notification will be handed down to the normal pci hotplug event
handler in acpiphp so that new bridges/devices can be enumerated.
Because some dock stations do not have pci bridges or pci devices that
need to be inserted after a dock, acpiphp will remain loaded to handle
dock events even if no hotpluggable pci slots are discovered.
You probably need to have the pci=assign-busses kernel parameter enabled
to use these patches, and you may not allow ibm_acpi to handle docking
notifications and use this patch.
This patch incorporates feedback provided by many.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/hotplug/acpiphp.h')
-rw-r--r-- | drivers/pci/hotplug/acpiphp.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index 6a91cfb..885838a 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -161,6 +161,25 @@ struct acpiphp_attention_info struct module *owner; }; + +struct dependent_device { + struct list_head device_list; + struct list_head pci_list; + acpi_handle handle; + struct acpiphp_func *func; +}; + + +struct acpiphp_dock_station { + acpi_handle handle; + u32 last_dock_time; + u32 flags; + struct acpiphp_func *dock_bridge; + struct list_head dependent_devices; + struct list_head pci_dependent_devices; +}; + + /* PCI bus bridge HID */ #define ACPI_PCI_HOST_HID "PNP0A03" @@ -198,6 +217,12 @@ struct acpiphp_attention_info #define FUNC_HAS_PS1 (0x00000020) #define FUNC_HAS_PS2 (0x00000040) #define FUNC_HAS_PS3 (0x00000080) +#define FUNC_HAS_DCK (0x00000100) +#define FUNC_IS_DD (0x00000200) + +/* dock station flags */ +#define DOCK_DOCKING (0x00000001) +#define DOCK_HAS_BRIDGE (0x00000002) /* function prototypes */ @@ -211,6 +236,7 @@ extern void acpiphp_glue_exit (void); extern int acpiphp_get_num_slots (void); extern struct acpiphp_slot *get_slot_from_id (int id); typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data); +void handle_hotplug_event_func(acpi_handle, u32, void*); extern int acpiphp_enable_slot (struct acpiphp_slot *slot); extern int acpiphp_disable_slot (struct acpiphp_slot *slot); @@ -220,6 +246,16 @@ extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot); extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot); extern u32 acpiphp_get_address (struct acpiphp_slot *slot); +/* acpiphp_dock.c */ +extern int find_dock_station(void); +extern void remove_dock_station(void); +extern void add_dependent_device(struct dependent_device *new_dd); +extern void add_pci_dependent_device(struct dependent_device *new_dd); +extern struct dependent_device *get_dependent_device(acpi_handle handle); +extern int is_dependent_device(acpi_handle handle); +extern int detect_dependent_devices(acpi_handle *bridge_handle); +extern struct dependent_device *alloc_dependent_device(acpi_handle handle); + /* variables */ extern int acpiphp_debug; |