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HID: wacom: EKR: add a worker to add/remove resources on addition/removal

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wacom_remote_status_irq() sends information of addition/removal of EKR.
We want to allocate one input node per remote, so better having this
in a separate worker, not handled in the IRQ directly.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Benjamin Tissoires
2016-07-13 18:06:01 +02:00
committed by Jiri Kosina
parent a50aac7193
commit e6f2813a6d
4 changed files with 115 additions and 40 deletions
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11
drivers/hid/wacom.h
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@@ -90,6 +90,7 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/hid.h>
#include <linux/kfifo.h>
#include <linux/usb/input.h>
#include <linux/power_supply.h>
#include <asm/unaligned.h>
@@ -108,6 +109,7 @@
enum wacom_worker {
WACOM_WORKER_WIRELESS,
WACOM_WORKER_BATTERY,
WACOM_WORKER_REMOTE,
};
struct wacom_group_leds {
@@ -122,6 +124,9 @@ struct wacom {
struct mutex lock;
struct work_struct wireless_work;
struct work_struct battery_work;
struct work_struct remote_work;
spinlock_t remote_lock;
struct kfifo remote_fifo;
struct wacom_leds {
struct wacom_group_leds *groups;
u8 llv; /* status led brightness no button (1..127) */
@@ -149,6 +154,9 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
case WACOM_WORKER_BATTERY:
schedule_work(&wacom->battery_work);
break;
case WACOM_WORKER_REMOTE:
schedule_work(&wacom->remote_work);
break;
}
}
@@ -168,7 +176,4 @@ int wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value);
void wacom_wac_report(struct hid_device *hdev, struct hid_report *report);
void wacom_battery_work(struct work_struct *work);
int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial,
int index);
void wacom_remote_destroy_attr_group(struct wacom *wacom, __u32 serial);
#endif