A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

dock: introduce .uevent for devices in dock, eg libata

Browse source 
dock's uevent reported itself, not ata. It might be difficult to find an
ata device just according to a dock. This patch introduces docking ops
for each device in a dock. when docking, dock driver can send device
specific uevent. This should help dock station too (not just bay)

Signed-off-by: Shaohua Li <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Shaohua Li 2008-08-28 10:06:16 +08:00 • committed by Len Brown
commit 1253f7aabf
4 changed files with 68 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

44
drivers/ata/libata-acpi.c
View file

@ -209,6 +209,46 @@ static void ata_acpi_ap_notify_dock(acpi_handle handle, u32 event, void *data)
ata_acpi_handle_hotplug(ap, NULL, event);
}
static void ata_acpi_uevent(struct ata_port *ap, struct ata_device *dev,
u32 event)
{
struct kobject *kobj = NULL;
char event_string[20];
char *envp[] = { event_string, NULL };
if (dev) {
if (dev->sdev)
kobj = &dev->sdev->sdev_gendev.kobj;
} else
kobj = &ap->dev->kobj;
if (kobj) {
snprintf(event_string, 20, "BAY_EVENT=%d", event);
kobject_uevent_env(kobj, KOBJ_CHANGE, envp);
}
}
static void ata_acpi_ap_uevent(acpi_handle handle, u32 event, void *data)
{
ata_acpi_uevent(data, NULL, event);
}
static void ata_acpi_dev_uevent(acpi_handle handle, u32 event, void *data)
{
struct ata_device *dev = data;
ata_acpi_uevent(dev->link->ap, dev, event);
}
static struct acpi_dock_ops ata_acpi_dev_dock_ops = {
.handler = ata_acpi_dev_notify_dock,
.uevent = ata_acpi_dev_uevent,
};
static struct acpi_dock_ops ata_acpi_ap_dock_ops = {
.handler = ata_acpi_ap_notify_dock,
.uevent = ata_acpi_ap_uevent,
};
/**
* ata_acpi_associate - associate ATA host with ACPI objects
* @host: target ATA host
@ -244,7 +284,7 @@ void ata_acpi_associate(struct ata_host *host)
if (ap->acpi_handle) {
/* we might be on a docking station */
register_hotplug_dock_device(ap->acpi_handle,
ata_acpi_ap_notify_dock, ap);
&ata_acpi_ap_dock_ops, ap);
}
for (j = 0; j < ata_link_max_devices(&ap->link); j++) {
@ -253,7 +293,7 @@ void ata_acpi_associate(struct ata_host *host)
if (dev->acpi_handle) {
/* we might be on a docking station */
register_hotplug_dock_device(dev->acpi_handle,
ata_acpi_dev_notify_dock, dev);
&ata_acpi_dev_dock_ops, dev);
}
}
}