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/* $OpenBSD: ikbd.c,v 1.1 2016/01/14 21:01:49 kettenis Exp $ */
/*
* HID-over-i2c keyboard driver
*
* Copyright (c) 2016 Mark Kettenis <kettenis@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/timeout.h>
#include <dev/i2c/i2cvar.h>
#include <dev/i2c/ihidev.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/hid/hid.h>
#include <dev/hid/hidkbdsc.h>
struct ikbd_softc {
struct ihidev sc_hdev;
struct hidkbd sc_kbd;
};
void ikbd_intr(struct ihidev *addr, void *ibuf, u_int len);
int ikbd_enable(void *, int);
void ikbd_set_leds(void *, int);
int ikbd_ioctl(void *, u_long, caddr_t, int, struct proc *);
const struct wskbd_accessops ikbd_accessops = {
ikbd_enable,
ikbd_set_leds,
ikbd_ioctl,
};
int ikbd_match(struct device *, void *, void *);
void ikbd_attach(struct device *, struct device *, void *);
int ikbd_detach(struct device *, int);
struct cfdriver ikbd_cd = {
NULL, "ikbd", DV_DULL
};
const struct cfattach ikbd_ca = {
sizeof(struct ikbd_softc),
ikbd_match,
ikbd_attach,
ikbd_detach
};
int
ikbd_match(struct device *parent, void *match, void *aux)
{
struct ihidev_attach_arg *iha = (struct ihidev_attach_arg *)aux;
int size;
void *desc;
ihidev_get_report_desc(iha->parent, &desc, &size);
if (!hid_is_collection(desc, size, iha->reportid,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_KEYBOARD)))
return (IMATCH_NONE);
return (IMATCH_IFACECLASS);
}
void
ikbd_attach(struct device *parent, struct device *self, void *aux)
{
struct ikbd_softc *sc = (struct ikbd_softc *)self;
struct hidkbd *kbd = &sc->sc_kbd;
struct ihidev_attach_arg *iha = (struct ihidev_attach_arg *)aux;
int dlen, repid;
void *desc;
sc->sc_hdev.sc_intr = ikbd_intr;
sc->sc_hdev.sc_parent = iha->parent;
sc->sc_hdev.sc_report_id = iha->reportid;
ihidev_get_report_desc(iha->parent, &desc, &dlen);
repid = iha->reportid;
sc->sc_hdev.sc_isize = hid_report_size(desc, dlen, hid_input, repid);
sc->sc_hdev.sc_osize = hid_report_size(desc, dlen, hid_output, repid);
sc->sc_hdev.sc_fsize = hid_report_size(desc, dlen, hid_feature, repid);
if (hidkbd_attach(self, kbd, 0, 0, repid, desc, dlen) != 0)
return;
printf("\n");
hidkbd_attach_wskbd(kbd, KB_US | KB_DEFAULT, &ikbd_accessops);
}
int
ikbd_detach(struct device *self, int flags)
{
struct ikbd_softc *sc = (struct ikbd_softc *)self;
struct hidkbd *kbd = &sc->sc_kbd;
return hidkbd_detach(kbd, flags);
}
void
ikbd_intr(struct ihidev *addr, void *ibuf, u_int len)
{
struct ikbd_softc *sc = (struct ikbd_softc *)addr;
struct hidkbd *kbd = &sc->sc_kbd;
if (kbd->sc_enabled != 0)
hidkbd_input(kbd, (uint8_t *)ibuf, len);
}
int
ikbd_enable(void *v, int on)
{
struct ikbd_softc *sc = v;
struct hidkbd *kbd = &sc->sc_kbd;
int rv;
if ((rv = hidkbd_enable(kbd, on)) != 0)
return rv;
if (on) {
return ihidev_open(&sc->sc_hdev);
} else {
ihidev_close(&sc->sc_hdev);
return 0;
}
}
void
ikbd_set_leds(void *v, int leds)
{
}
int
ikbd_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct ikbd_softc *sc = v;
struct hidkbd *kbd = &sc->sc_kbd;
int rc;
switch (cmd) {
case WSKBDIO_GTYPE:
/* XXX: should we set something else? */
*(u_int *)data = WSKBD_TYPE_USB;
return 0;
default:
rc = ihidev_ioctl(&sc->sc_hdev, cmd, data, flag, p);
if (rc != -1)
return rc;
else
return hidkbd_ioctl(kbd, cmd, data, flag, p);
}
}
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