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hkbd: Fix handling of keyboard ErrorRollOver reports

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Ignore fantom keyboard state reports entirelly rather than ignore
RollOver states for each key separatelly.  Latter results in spurious
release/push pairs of events on each fantom keyboard state report.

Reported by:	Jan Martin Mikkelsen <janm_AT_transactionware_DOT_com>
Submitted by:	Jan Martin Mikkelsen (initial version)
PR:		253249
MFC after:	1 week

(cherry picked from commit 812c59ed61)
This commit is contained in:
Vladimir Kondratyev 2021-02-13 21:18:07 +03:00
parent e7211ca03a
commit 98b3658c4e
1 changed files with 6 additions and 1 deletions
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7
sys/dev/hid/hkbd.c
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@ -715,11 +715,16 @@ hkbd_intr_callback(void *context, void *data, hid_size_t len)
uint32_t key =
hid_get_data(buf + offset, len - offset,
&sc->sc_loc_key[i]);
if (key == KEY_ERROR) {
DPRINTF("KEY_ERROR\n");
sc->sc_ndata = sc->sc_odata;
return; /* ignore */
}
if (modifiers & MOD_FN)
key = hkbd_apple_fn(key);
if (sc->sc_flags & HKBD_FLAG_APPLE_SWAP)
key = hkbd_apple_swap(key);
if (key == KEY_NONE || key == KEY_ERROR || key >= HKBD_NKEYCODE)
if (key == KEY_NONE || key >= HKBD_NKEYCODE)
continue;
/* set key in bitmap */
sc->sc_ndata.bitmap[key / 64] |= 1ULL << (key % 64);