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HID: wiimote: Add extension handler stubs

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All supported extensions report data as 6 byte block. All DRMs with extension
data provide at least 6 extension bytes. Hence a generic handler for all
extension bytes is sufficient and can be called on all DRMs.

The handler distinguishes the input and passes it to the right handler. Motion+
passes data interleaved so we can have Motion+ and a regular extension enabled
simultaneously.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
David Herrmann 2011-11-17 14:12:06 +01:00 committed by Jiri Kosina
parent 479901ba18
commit 0b6815d75d
3 changed files with 37 additions and 0 deletions
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6
drivers/hid/hid-wiimote-core.c
View File

@ -857,6 +857,7 @@ static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
wiiext_handle(wdata, &payload[2]);
}
static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
@ -873,6 +874,7 @@ static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
wiiext_handle(wdata, &payload[2]);
}
static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
@ -883,12 +885,14 @@ static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input2(wdata, &payload[7], false);
ir_to_input3(wdata, &payload[9], true);
input_sync(wdata->ir);
wiiext_handle(wdata, &payload[12]);
}
static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
{
handler_keys(wdata, payload);
handler_accel(wdata, payload);
wiiext_handle(wdata, &payload[5]);
}
static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
@ -900,10 +904,12 @@ static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
ir_to_input2(wdata, &payload[10], false);
ir_to_input3(wdata, &payload[12], true);
input_sync(wdata->ir);
wiiext_handle(wdata, &payload[15]);
}
static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
{
wiiext_handle(wdata, payload);
}
static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)

29
drivers/hid/hid-wiimote-ext.c
View File

@ -204,6 +204,35 @@ bool wiiext_active(struct wiimote_data *wdata)
return wdata->ext->motionp || wdata->ext->ext_type;
}
static void handler_motionp(struct wiimote_ext *ext, const __u8 *payload)
{
}
static void handler_nunchuck(struct wiimote_ext *ext, const __u8 *payload)
{
}
static void handler_classic(struct wiimote_ext *ext, const __u8 *payload)
{
}
/* call this with state.lock spinlock held */
void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
{
struct wiimote_ext *ext = wdata->ext;
if (!ext)
return;
if (ext->motionp && (payload[5] & 0x02)) {
handler_motionp(ext, payload);
} else if (ext->ext_type == WIIEXT_NUNCHUCK) {
handler_nunchuck(ext, payload);
} else if (ext->ext_type == WIIEXT_CLASSIC) {
handler_classic(ext, payload);
}
}
static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr,
char *buf)
{

2
drivers/hid/hid-wiimote.h
View File

@ -125,6 +125,7 @@ extern int wiiext_init(struct wiimote_data *wdata);
extern void wiiext_deinit(struct wiimote_data *wdata);
extern void wiiext_event(struct wiimote_data *wdata, bool plugged);
extern bool wiiext_active(struct wiimote_data *wdata);
extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload);
#else
@ -132,6 +133,7 @@ static inline int wiiext_init(void *u) { return 0; }
static inline void wiiext_deinit(void *u) { }
static inline void wiiext_event(void *u, bool p) { }
static inline bool wiiext_active(void *u) { return false; }
static inline void wiiext_handle(void *u, const __u8 *p) { }
#endif