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| author | David Herrmann <dh.herrmann@gmail.com> | 2013-05-06 01:12:51 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-06-03 13:07:00 +0400 |
| commit | 27f06942142e7a17757b5de1dc4f128c179b7c13 (patch) | |
| tree | a494da599d33a444d530314221e2738f1f0a39cf /drivers/hid/hid-wiimote.h | |
| parent | d758b1f0c527aedc5e83a565a0737d9ac21ea46a (diff) | |
| download | linux-27f06942142e7a17757b5de1dc4f128c179b7c13.tar.xz | |
HID: wiimote: add sub-device module infrastructure
To avoid loading all sub-device drivers for every Wii Remote, even though
the required hardware might not be available, we introduce a module layer.
The module layer specifies which sub-devices are available on each
device-type. After device detection, we only load the modules for the
detected device. If module loading fails, we unload everything and mark
the device as WIIMOTE_DEV_UNKNOWN. As long as a device is marked as
"unknown", no sub-devices will be used and the device is considered
unsupported.
All the different sub-devices, including KEYS, RUMBLE, BATTERY, LEDS,
ACCELEROMETER, IR and more will be ported in follow-up patches to the new
module layer.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-wiimote.h')
| -rw-r--r-- | drivers/hid/hid-wiimote.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h index 34417021606e..3c94e3c657c6 100644 --- a/drivers/hid/hid-wiimote.h +++ b/drivers/hid/hid-wiimote.h @@ -108,6 +108,33 @@ struct wiimote_data { struct work_struct init_worker; }; +/* wiimote modules */ + +enum wiimod_module { + WIIMOD_NUM, + WIIMOD_NULL = WIIMOD_NUM, +}; + +#define WIIMOD_FLAG_INPUT 0x0001 + +struct wiimod_ops { + __u16 flags; + unsigned long arg; + int (*probe) (const struct wiimod_ops *ops, + struct wiimote_data *wdata); + void (*remove) (const struct wiimod_ops *ops, + struct wiimote_data *wdata); + + void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys); + void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel); + void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed, + unsigned int id); +}; + +extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM]; + +/* wiimote requests */ + enum wiiproto_reqs { WIIPROTO_REQ_NULL = 0x0, WIIPROTO_REQ_RUMBLE = 0x10, |