Add stub functions to read and identify extensions and then initialize all
connected extensions.
Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxxxxxxx>
---
drivers/hid/hid-wiimote-ext.c | 38 ++++++++++++++++++++++++++++++++++++++
1 files changed, 38 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
index fa9c677..3e3e1fc 100644
--- a/drivers/hid/hid-wiimote-ext.c
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -33,10 +33,48 @@ enum wiiext_type {
WIIEXT_NUNCHUCK, /* Nintendo nunchuck controller */
};
+/* diable all extensions */
+static void ext_disable(struct wiimote_ext *ext)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ext->wdata->state.lock, flags);
+ ext->motionp = false;
+ ext->ext_type = WIIEXT_NONE;
+ spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
+}
+
+static bool motionp_read(struct wiimote_ext *ext)
+{
+ return false;
+}
+
+static __u8 ext_read(struct wiimote_ext *ext)
+{
+ return WIIEXT_NONE;
+}
+
+static void ext_enable(struct wiimote_ext *ext, bool motionp, __u8 ext_type)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ext->wdata->state.lock, flags);
+ ext->motionp = motionp;
+ ext->ext_type = ext_type;
+ spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
+}
+
static void wiiext_worker(struct work_struct *work)
{
struct wiimote_ext *ext = container_of(work, struct wiimote_ext,
worker);
+ bool motionp;
+ __u8 ext_type;
+
+ ext_disable(ext);
+ motionp = motionp_read(ext);
+ ext_type = ext_read(ext);
+ ext_enable(ext, motionp, ext_type);
}
/* schedule work only once, otherwise mark for reschedule */
--
1.7.7.3
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