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nadenislamarreJiri Kosina
nadenislamarre
authored and
Jiri Kosina
committed
HID: wiimote: add support for Guitar-Hero guitars
Apart from drums, Guitar-Hero also ships with guitars. Use the recently introduced input ABS/BTN-bits to report this to user-space. Devices are reported as "Nintendo Wii Remote Guitar". If I ever get my hands on "RockBand" guitars, I will try to report them via the same interface so user-space does not have to bother which device it deals with. Signed-off-by: Nicolas.Adenis-Lamarre <[email protected]> (add commit-msg and adjust to new BTN_* IDs) Signed-off-by: David Herrmann <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
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‎drivers/hid/hid-wiimote-core.c

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -459,6 +459,9 @@ static __u8 wiimote_cmd_read_ext(struct wiimote_data *wdata, __u8 *rmem)
459459
if (rmem[0] == 0x01 && rmem[1] == 0x00 &&
460460
rmem[4] == 0x01 && rmem[5] == 0x03)
461461
return WIIMOTE_EXT_GUITAR_HERO_DRUMS;
462+
if (rmem[0] == 0x00 && rmem[1] == 0x00 &&
463+
rmem[4] == 0x01 && rmem[5] == 0x03)
464+
return WIIMOTE_EXT_GUITAR_HERO_GUITAR;
462465

463466
return WIIMOTE_EXT_UNKNOWN;
464467
}
@@ -493,6 +496,7 @@ static bool wiimote_cmd_map_mp(struct wiimote_data *wdata, __u8 exttype)
493496
switch (exttype) {
494497
case WIIMOTE_EXT_CLASSIC_CONTROLLER:
495498
case WIIMOTE_EXT_GUITAR_HERO_DRUMS:
499+
case WIIMOTE_EXT_GUITAR_HERO_GUITAR:
496500
wmem = 0x07;
497501
break;
498502
case WIIMOTE_EXT_NUNCHUK:
@@ -1084,6 +1088,7 @@ static const char *wiimote_exttype_names[WIIMOTE_EXT_NUM] = {
10841088
[WIIMOTE_EXT_BALANCE_BOARD] = "Nintendo Wii Balance Board",
10851089
[WIIMOTE_EXT_PRO_CONTROLLER] = "Nintendo Wii U Pro Controller",
10861090
[WIIMOTE_EXT_GUITAR_HERO_DRUMS] = "Nintendo Wii Guitar Hero Drums",
1091+
[WIIMOTE_EXT_GUITAR_HERO_GUITAR] = "Nintendo Wii Guitar Hero Guitar",
10871092
};
10881093

10891094
/*
@@ -1672,6 +1677,8 @@ static ssize_t wiimote_ext_show(struct device *dev,
16721677
return sprintf(buf, "procontroller\n");
16731678
case WIIMOTE_EXT_GUITAR_HERO_DRUMS:
16741679
return sprintf(buf, "drums\n");
1680+
case WIIMOTE_EXT_GUITAR_HERO_GUITAR:
1681+
return sprintf(buf, "guitar\n");
16751682
case WIIMOTE_EXT_UNKNOWN:
16761683
/* fallthrough */
16771684
default:

‎drivers/hid/hid-wiimote-modules.c

Lines changed: 174 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2050,6 +2050,179 @@ static const struct wiimod_ops wiimod_drums = {
20502050
.in_ext = wiimod_drums_in_ext,
20512051
};
20522052

2053+
/*
2054+
* Guitar
2055+
* Guitar-Hero, Rock-Band and other games came bundled with guitars which can
2056+
* be plugged as extension to a Wiimote.
2057+
* We create a separate device for guitars and report all information via this
2058+
* input device.
2059+
*/
2060+
2061+
static void wiimod_guitar_in_ext(struct wiimote_data *wdata, const __u8 *ext)
2062+
{
2063+
__u8 sx, sy, tb, wb, bd, bm, bp, bo, br, bb, bg, by, bu;
2064+
2065+
/* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2066+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2067+
* 1 | 0 | 0 | SX <5:0> |
2068+
* 2 | 0 | 0 | SY <5:0> |
2069+
* -----+-----+-----+-----+-----------------------------+
2070+
* 3 | 0 | 0 | 0 | TB <4:0> |
2071+
* -----+-----+-----+-----+-----------------------------+
2072+
* 4 | 0 | 0 | 0 | WB <4:0> |
2073+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2074+
* 5 | 1 | BD | 1 | B- | 1 | B+ | 1 | 1 |
2075+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2076+
* 6 | BO | BR | BB | BG | BY | 1 | 1 | BU |
2077+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2078+
* All buttons are 0 if pressed
2079+
*
2080+
* With Motion+ enabled, the following bits will get invalid:
2081+
* Byte | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
2082+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2083+
* 1 | 0 | 0 | SX <5:1> |XXXXX|
2084+
* 2 | 0 | 0 | SY <5:1> |XXXXX|
2085+
* -----+-----+-----+-----+-----------------------+-----+
2086+
* 3 | 0 | 0 | 0 | TB <4:0> |
2087+
* -----+-----+-----+-----+-----------------------------+
2088+
* 4 | 0 | 0 | 0 | WB <4:0> |
2089+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2090+
* 5 | 1 | BD | 1 | B- | 1 | B+ | 1 |XXXXX|
2091+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2092+
* 6 | BO | BR | BB | BG | BY | 1 |XXXXX|XXXXX|
2093+
* -----+-----+-----+-----+-----+-----+-----+-----+-----+
2094+
*/
2095+
2096+
sx = ext[0] & 0x3f;
2097+
sy = ext[1] & 0x3f;
2098+
tb = ext[2] & 0x1f;
2099+
wb = ext[3] & 0x1f;
2100+
bd = !(ext[4] & 0x40);
2101+
bm = !(ext[4] & 0x10);
2102+
bp = !(ext[4] & 0x04);
2103+
bo = !(ext[5] & 0x80);
2104+
br = !(ext[5] & 0x40);
2105+
bb = !(ext[5] & 0x20);
2106+
bg = !(ext[5] & 0x10);
2107+
by = !(ext[5] & 0x08);
2108+
bu = !(ext[5] & 0x01);
2109+
2110+
input_report_abs(wdata->extension.input, ABS_X, sx - 0x20);
2111+
input_report_abs(wdata->extension.input, ABS_Y, sy - 0x20);
2112+
input_report_abs(wdata->extension.input, ABS_FRET_BOARD, tb);
2113+
input_report_abs(wdata->extension.input, ABS_WHAMMY_BAR, wb - 0x10);
2114+
2115+
input_report_key(wdata->extension.input, BTN_MODE, bm);
2116+
input_report_key(wdata->extension.input, BTN_START, bp);
2117+
input_report_key(wdata->extension.input, BTN_STRUM_BAR_UP, bu);
2118+
input_report_key(wdata->extension.input, BTN_STRUM_BAR_DOWN, bd);
2119+
input_report_key(wdata->extension.input, BTN_FRET_FAR_UP, bg);
2120+
input_report_key(wdata->extension.input, BTN_FRET_UP, br);
2121+
input_report_key(wdata->extension.input, BTN_FRET_MID, by);
2122+
input_report_key(wdata->extension.input, BTN_FRET_LOW, bb);
2123+
input_report_key(wdata->extension.input, BTN_FRET_FAR_LOW, bo);
2124+
2125+
input_sync(wdata->extension.input);
2126+
}
2127+
2128+
static int wiimod_guitar_open(struct input_dev *dev)
2129+
{
2130+
struct wiimote_data *wdata = input_get_drvdata(dev);
2131+
unsigned long flags;
2132+
2133+
spin_lock_irqsave(&wdata->state.lock, flags);
2134+
wdata->state.flags |= WIIPROTO_FLAG_EXT_USED;
2135+
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2136+
spin_unlock_irqrestore(&wdata->state.lock, flags);
2137+
2138+
return 0;
2139+
}
2140+
2141+
static void wiimod_guitar_close(struct input_dev *dev)
2142+
{
2143+
struct wiimote_data *wdata = input_get_drvdata(dev);
2144+
unsigned long flags;
2145+
2146+
spin_lock_irqsave(&wdata->state.lock, flags);
2147+
wdata->state.flags &= ~WIIPROTO_FLAG_EXT_USED;
2148+
wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
2149+
spin_unlock_irqrestore(&wdata->state.lock, flags);
2150+
}
2151+
2152+
static int wiimod_guitar_probe(const struct wiimod_ops *ops,
2153+
struct wiimote_data *wdata)
2154+
{
2155+
int ret;
2156+
2157+
wdata->extension.input = input_allocate_device();
2158+
if (!wdata->extension.input)
2159+
return -ENOMEM;
2160+
2161+
input_set_drvdata(wdata->extension.input, wdata);
2162+
wdata->extension.input->open = wiimod_guitar_open;
2163+
wdata->extension.input->close = wiimod_guitar_close;
2164+
wdata->extension.input->dev.parent = &wdata->hdev->dev;
2165+
wdata->extension.input->id.bustype = wdata->hdev->bus;
2166+
wdata->extension.input->id.vendor = wdata->hdev->vendor;
2167+
wdata->extension.input->id.product = wdata->hdev->product;
2168+
wdata->extension.input->id.version = wdata->hdev->version;
2169+
wdata->extension.input->name = WIIMOTE_NAME " Guitar";
2170+
2171+
set_bit(EV_KEY, wdata->extension.input->evbit);
2172+
set_bit(BTN_MODE, wdata->extension.input->keybit);
2173+
set_bit(BTN_START, wdata->extension.input->keybit);
2174+
set_bit(BTN_FRET_FAR_UP, wdata->extension.input->keybit);
2175+
set_bit(BTN_FRET_UP, wdata->extension.input->keybit);
2176+
set_bit(BTN_FRET_MID, wdata->extension.input->keybit);
2177+
set_bit(BTN_FRET_LOW, wdata->extension.input->keybit);
2178+
set_bit(BTN_FRET_FAR_LOW, wdata->extension.input->keybit);
2179+
set_bit(BTN_STRUM_BAR_UP, wdata->extension.input->keybit);
2180+
set_bit(BTN_STRUM_BAR_DOWN, wdata->extension.input->keybit);
2181+
2182+
set_bit(EV_ABS, wdata->extension.input->evbit);
2183+
set_bit(ABS_X, wdata->extension.input->absbit);
2184+
set_bit(ABS_Y, wdata->extension.input->absbit);
2185+
set_bit(ABS_FRET_BOARD, wdata->extension.input->absbit);
2186+
set_bit(ABS_WHAMMY_BAR, wdata->extension.input->absbit);
2187+
input_set_abs_params(wdata->extension.input,
2188+
ABS_X, -32, 31, 1, 1);
2189+
input_set_abs_params(wdata->extension.input,
2190+
ABS_Y, -32, 31, 1, 1);
2191+
input_set_abs_params(wdata->extension.input,
2192+
ABS_FRET_BOARD, 0, 0x1f, 1, 1);
2193+
input_set_abs_params(wdata->extension.input,
2194+
ABS_WHAMMY_BAR, 0, 0x0f, 1, 1);
2195+
2196+
ret = input_register_device(wdata->extension.input);
2197+
if (ret)
2198+
goto err_free;
2199+
2200+
return 0;
2201+
2202+
err_free:
2203+
input_free_device(wdata->extension.input);
2204+
wdata->extension.input = NULL;
2205+
return ret;
2206+
}
2207+
2208+
static void wiimod_guitar_remove(const struct wiimod_ops *ops,
2209+
struct wiimote_data *wdata)
2210+
{
2211+
if (!wdata->extension.input)
2212+
return;
2213+
2214+
input_unregister_device(wdata->extension.input);
2215+
wdata->extension.input = NULL;
2216+
}
2217+
2218+
static const struct wiimod_ops wiimod_guitar = {
2219+
.flags = 0,
2220+
.arg = 0,
2221+
.probe = wiimod_guitar_probe,
2222+
.remove = wiimod_guitar_remove,
2223+
.in_ext = wiimod_guitar_in_ext,
2224+
};
2225+
20532226
/*
20542227
* Builtin Motion Plus
20552228
* This module simply sets the WIIPROTO_FLAG_BUILTIN_MP protocol flag which
@@ -2301,4 +2474,5 @@ const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM] = {
23012474
[WIIMOTE_EXT_BALANCE_BOARD] = &wiimod_bboard,
23022475
[WIIMOTE_EXT_PRO_CONTROLLER] = &wiimod_pro,
23032476
[WIIMOTE_EXT_GUITAR_HERO_DRUMS] = &wiimod_drums,
2477+
[WIIMOTE_EXT_GUITAR_HERO_GUITAR] = &wiimod_guitar,
23042478
};

‎drivers/hid/hid-wiimote.h

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -89,6 +89,7 @@ enum wiimote_exttype {
8989
WIIMOTE_EXT_BALANCE_BOARD,
9090
WIIMOTE_EXT_PRO_CONTROLLER,
9191
WIIMOTE_EXT_GUITAR_HERO_DRUMS,
92+
WIIMOTE_EXT_GUITAR_HERO_GUITAR,
9293
WIIMOTE_EXT_NUM,
9394
};
9495

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