HID: wiimote: Add extension initializer stubs
Add stub functions to read and identify extensions and then initialize all connected extensions. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -33,10 +33,48 @@ enum wiiext_type {
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WIIEXT_NUNCHUCK, /* Nintendo nunchuck controller */
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};
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/* diable all extensions */
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static void ext_disable(struct wiimote_ext *ext)
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{
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unsigned long flags;
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spin_lock_irqsave(&ext->wdata->state.lock, flags);
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ext->motionp = false;
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ext->ext_type = WIIEXT_NONE;
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spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
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}
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static bool motionp_read(struct wiimote_ext *ext)
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{
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return false;
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}
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static __u8 ext_read(struct wiimote_ext *ext)
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{
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return WIIEXT_NONE;
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}
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static void ext_enable(struct wiimote_ext *ext, bool motionp, __u8 ext_type)
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{
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unsigned long flags;
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spin_lock_irqsave(&ext->wdata->state.lock, flags);
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ext->motionp = motionp;
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ext->ext_type = ext_type;
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spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
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}
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static void wiiext_worker(struct work_struct *work)
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{
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struct wiimote_ext *ext = container_of(work, struct wiimote_ext,
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worker);
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bool motionp;
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__u8 ext_type;
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ext_disable(ext);
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motionp = motionp_read(ext);
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ext_type = ext_read(ext);
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ext_enable(ext, motionp, ext_type);
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}
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/* schedule work only once, otherwise mark for reschedule */
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