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ACPI: don't duplicate input events on netlink

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The previous events patch added a netlink event for every
user of the legacy /proc/acpi/event interface.

However, some users of /proc/acpi/event are really input events,
and they already report their events via the input layer.

Introduce a new interface, acpi_bus_generate_netlink_event(),
which is explicitly called by devices that want to repoprt
events via netlink.  This allows the input-like events
to opt-out of generating netlink events.  In summary:

events that are sent via netlink:
	ac/battery/sbs
	thermal
	processor
	thinkpad_acpi dock/bay

events that are sent via input layer:
	button
	video hotkey
	thinkpad_acpi hotkey
	asus_acpi/asus-laptop hotkey
	sonypi/sonylaptop

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui
2007-08-23 01:24:31 +08:00
committed by Len Brown
parent b377fd3982
commit 962ce8ca06
10 changed files with 53 additions and 16 deletions
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20
drivers/misc/thinkpad_acpi.c
View File

@@ -2162,22 +2162,27 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
int docked = dock_docked();
int pci = ibm->acpi->hid && ibm->acpi->device &&
acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids);
int data;
if (event == 1 && !pci) /* 570 */
acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */
data = 1; /* button */
else if (event == 1 && pci) /* 570 */
acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */
data = 3; /* dock */
else if (event == 3 && docked)
acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */
data = 1; /* button */
else if (event == 3 && !docked)
acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */
data = 2; /* undock */
else if (event == 0 && docked)
acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */
data = 3; /* dock */
else {
printk(IBM_ERR "unknown dock event %d, status %d\n",
event, _sta(dock_handle));
acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */
data = 0; /* unknown */
}
acpi_bus_generate_event(ibm->acpi->device, event, data);
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, data);
}
static int dock_read(char *p)
@@ -2276,6 +2281,9 @@ static int __init bay_init(struct ibm_init_struct *iibm)
static void bay_notify(struct ibm_struct *ibm, u32 event)
{
acpi_bus_generate_event(ibm->acpi->device, event, 0);
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
ibm->acpi->device->dev.bus_id,
event, 0);
}
#define bay_occupied(b) (_sta(b##_handle) & 1)