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Pull dock-bay into release branch

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This commit is contained in:
Len Brown 2007-07-22 02:25:18 -04:00
commit e8b495fe09
2 changed files with 108 additions and 42 deletions
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19
drivers/acpi/bay.c
View File

@ -288,6 +288,11 @@ static int bay_add(acpi_handle handle, int id)
new_bay->pdev = pdev;
platform_set_drvdata(pdev, new_bay);
/*
* we want the bay driver to be able to send uevents
*/
pdev->dev.uevent_suppress = 0;
if (acpi_bay_add_fs(new_bay)) {
platform_device_unregister(new_bay->pdev);
goto bay_add_err;
@ -328,18 +333,12 @@ static void bay_notify(acpi_handle handle, u32 event, void *data)
{
struct bay *bay_dev = (struct bay *)data;
struct device *dev = &bay_dev->pdev->dev;
char event_string[12];
char *envp[] = { event_string, NULL };
bay_dprintk(handle, "Bay event");
switch(event) {
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
case ACPI_NOTIFY_EJECT_REQUEST:
kobject_uevent(&dev->kobj, KOBJ_CHANGE);
break;
default:
printk(KERN_ERR PREFIX "Bay: unknown event %d\n", event);
}
sprintf(event_string, "BAY_EVENT=%d\n", event);
kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
static acpi_status

131
drivers/acpi/dock.c
View File

@ -40,8 +40,15 @@ MODULE_AUTHOR("Kristen Carlson Accardi");
MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_DESCRIPTION);
MODULE_LICENSE("GPL");
static int immediate_undock = 1;
module_param(immediate_undock, bool, 0644);
MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to "
"undock immediately when the undock button is pressed, 0 will cause"
" the driver to wait for userspace to write the undock sysfs file "
" before undocking");
static struct atomic_notifier_head dock_notifier_list;
static struct platform_device dock_device;
static struct platform_device *dock_device;
static char dock_device_name[] = "dock";
struct dock_station {
@ -63,6 +70,7 @@ struct dock_dependent_device {
};
#define DOCK_DOCKING 0x00000001
#define DOCK_UNDOCKING 0x00000002
#define DOCK_EVENT 3
#define UNDOCK_EVENT 2
@ -327,12 +335,20 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event)
static void dock_event(struct dock_station *ds, u32 event, int num)
{
struct device *dev = &dock_device.dev;
struct device *dev = &dock_device->dev;
char event_string[7];
char *envp[] = { event_string, NULL };
if (num == UNDOCK_EVENT)
sprintf(event_string, "UNDOCK");
else
sprintf(event_string, "DOCK");
/*
* Indicate that the status of the dock station has
* changed.
*/
kobject_uevent(&dev->kobj, KOBJ_CHANGE);
kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
/**
@ -380,12 +396,11 @@ static void handle_dock(struct dock_station *ds, int dock)
union acpi_object arg;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
acpi_get_name(ds->handle, ACPI_FULL_PATHNAME, &name_buffer);
obj = name_buffer.pointer;
printk(KERN_INFO PREFIX "%s\n", dock ? "docking" : "undocking");
printk(KERN_INFO PREFIX "%s - %s\n",
(char *)name_buffer.pointer, dock ? "docking" : "undocking");
/* _DCK method has one argument */
arg_list.count = 1;
@ -394,7 +409,8 @@ static void handle_dock(struct dock_station *ds, int dock)
arg.integer.value = dock;
status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
if (ACPI_FAILURE(status))
pr_debug("%s: failed to execute _DCK\n", obj->string.pointer);
printk(KERN_ERR PREFIX "%s - failed to execute _DCK\n",
(char *)name_buffer.pointer);
kfree(buffer.pointer);
kfree(name_buffer.pointer);
}
@ -420,6 +436,16 @@ static inline void complete_dock(struct dock_station *ds)
ds->last_dock_time = jiffies;
}
static inline void begin_undock(struct dock_station *ds)
{
ds->flags |= DOCK_UNDOCKING;
}
static inline void complete_undock(struct dock_station *ds)
{
ds->flags &= ~(DOCK_UNDOCKING);
}
/**
* dock_in_progress - see if we are in the middle of handling a dock event
* @ds: the dock station
@ -550,7 +576,7 @@ static int handle_eject_request(struct dock_station *ds, u32 event)
printk(KERN_ERR PREFIX "Unable to undock!\n");
return -EBUSY;
}
complete_undock(ds);
return 0;
}
@ -594,7 +620,11 @@ static void dock_notify(acpi_handle handle, u32 event, void *data)
* to the driver who wish to hotplug.
*/
case ACPI_NOTIFY_EJECT_REQUEST:
handle_eject_request(ds, event);
begin_undock(ds);
if (immediate_undock)
handle_eject_request(ds, event);
else
dock_event(ds, event, UNDOCK_EVENT);
break;
default:
printk(KERN_ERR PREFIX "Unknown dock event %d\n", event);
@ -652,6 +682,17 @@ static ssize_t show_docked(struct device *dev,
}
DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
/*
* show_flags - read method for flags file in sysfs
*/
static ssize_t show_flags(struct device *dev,
struct device_attribute *attr, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
}
DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
/*
* write_undock - write method for "undock" file in sysfs
*/
@ -675,16 +716,15 @@ static ssize_t show_dock_uid(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long lbuf;
acpi_status status = acpi_evaluate_integer(dock_station->handle, "_UID", NULL, &lbuf);
if(ACPI_FAILURE(status)) {
acpi_status status = acpi_evaluate_integer(dock_station->handle,
"_UID", NULL, &lbuf);
if (ACPI_FAILURE(status))
return 0;
}
return snprintf(buf, PAGE_SIZE, "%lx\n", lbuf);
}
DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
/**
* dock_add - add a new dock station
* @handle: the dock station handle
@ -711,33 +751,53 @@ static int dock_add(acpi_handle handle)
ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
/* initialize platform device stuff */
dock_device.name = dock_device_name;
ret = platform_device_register(&dock_device);
if (ret) {
printk(KERN_ERR PREFIX "Error %d registering dock device\n", ret);
dock_device =
platform_device_register_simple(dock_device_name, 0, NULL, 0);
if (IS_ERR(dock_device)) {
kfree(dock_station);
return ret;
dock_station = NULL;
return PTR_ERR(dock_device);
}
ret = device_create_file(&dock_device.dev, &dev_attr_docked);
/* we want the dock device to send uevents */
dock_device->dev.uevent_suppress = 0;
ret = device_create_file(&dock_device->dev, &dev_attr_docked);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
platform_device_unregister(&dock_device);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
return ret;
}
ret = device_create_file(&dock_device.dev, &dev_attr_undock);
ret = device_create_file(&dock_device->dev, &dev_attr_undock);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
device_remove_file(&dock_device.dev, &dev_attr_docked);
platform_device_unregister(&dock_device);
device_remove_file(&dock_device->dev, &dev_attr_docked);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
return ret;
}
ret = device_create_file(&dock_device.dev, &dev_attr_uid);
ret = device_create_file(&dock_device->dev, &dev_attr_uid);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
platform_device_unregister(&dock_device);
device_remove_file(&dock_device->dev, &dev_attr_docked);
device_remove_file(&dock_device->dev, &dev_attr_undock);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
return ret;
}
ret = device_create_file(&dock_device->dev, &dev_attr_flags);
if (ret) {
printk("Error %d adding sysfs file\n", ret);
device_remove_file(&dock_device->dev, &dev_attr_docked);
device_remove_file(&dock_device->dev, &dev_attr_undock);
device_remove_file(&dock_device->dev, &dev_attr_uid);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
return ret;
}
@ -750,6 +810,7 @@ static int dock_add(acpi_handle handle)
dd = alloc_dock_dependent_device(handle);
if (!dd) {
kfree(dock_station);
dock_station = NULL;
ret = -ENOMEM;
goto dock_add_err_unregister;
}
@ -773,10 +834,13 @@ static int dock_add(acpi_handle handle)
dock_add_err:
kfree(dd);
dock_add_err_unregister:
device_remove_file(&dock_device.dev, &dev_attr_docked);
device_remove_file(&dock_device.dev, &dev_attr_undock);
platform_device_unregister(&dock_device);
device_remove_file(&dock_device->dev, &dev_attr_docked);
device_remove_file(&dock_device->dev, &dev_attr_undock);
device_remove_file(&dock_device->dev, &dev_attr_uid);
device_remove_file(&dock_device->dev, &dev_attr_flags);
platform_device_unregister(dock_device);
kfree(dock_station);
dock_station = NULL;
return ret;
}
@ -804,12 +868,15 @@ static int dock_remove(void)
printk(KERN_ERR "Error removing notify handler\n");
/* cleanup sysfs */
device_remove_file(&dock_device.dev, &dev_attr_docked);
device_remove_file(&dock_device.dev, &dev_attr_undock);
platform_device_unregister(&dock_device);
device_remove_file(&dock_device->dev, &dev_attr_docked);
device_remove_file(&dock_device->dev, &dev_attr_undock);
device_remove_file(&dock_device->dev, &dev_attr_uid);
device_remove_file(&dock_device->dev, &dev_attr_flags);
platform_device_unregister(dock_device);
/* free dock station memory */
kfree(dock_station);
dock_station = NULL;
return 0;
}