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/*
* Copyright (c) 2015 Etienne Gemsa <etienne.gemsa@lse.epita.fr>
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#ifdef HAVE_LINUX_INPUT_H
#include DEF_MPERS_TYPE(struct_ff_effect)
# include <linux/ioctl.h>
# include <linux/input.h>
typedef struct ff_effect struct_ff_effect;
#endif /* HAVE_LINUX_INPUT_H */
#include MPERS_DEFS
#ifdef HAVE_LINUX_INPUT_H
static void
decode_envelope(void *const data)
{
const struct ff_envelope *const envelope = data;
tprintf(", envelope={attack_length=%" PRIu16
", attack_level=%" PRIu16
", fade_length=%" PRIu16
", fade_level=%#x}",
envelope->attack_length,
envelope->attack_level,
envelope->fade_length,
envelope->fade_level);
}
static int
ff_effect_ioctl(struct tcb *const tcp, const kernel_ulong_t arg)
{
tprints(", ");
struct_ff_effect ffe;
if (umove_or_printaddr(tcp, arg, &ffe))
return RVAL_IOCTL_DECODED;
tprints("{type=");
print_evdev_ff_type(ffe.type);
tprintf(", id=%" PRIu16
", direction=%" PRIu16 ", ",
ffe.id,
ffe.direction);
if (abbrev(tcp)) {
tprints("...}");
return RVAL_IOCTL_DECODED;
}
tprintf("trigger={button=%" PRIu16
", interval=%" PRIu16 "}"
", replay={length=%" PRIu16
", delay=%" PRIu16 "}",
ffe.trigger.button,
ffe.trigger.interval,
ffe.replay.length,
ffe.replay.delay);
switch (ffe.type) {
case FF_CONSTANT:
tprintf(", constant={level=%" PRId16,
ffe.u.constant.level);
decode_envelope(&ffe.u.constant.envelope);
tprints("}");
break;
case FF_RAMP:
tprintf(", ramp={start_level=%" PRId16
", end_level=%" PRId16,
ffe.u.ramp.start_level,
ffe.u.ramp.end_level);
decode_envelope(&ffe.u.ramp.envelope);
tprints("}");
break;
case FF_PERIODIC:
tprintf(", periodic={waveform=%" PRIu16
", period=%" PRIu16
", magnitude=%" PRId16
", offset=%" PRId16
", phase=%" PRIu16,
ffe.u.periodic.waveform,
ffe.u.periodic.period,
ffe.u.periodic.magnitude,
ffe.u.periodic.offset,
ffe.u.periodic.phase);
decode_envelope(&ffe.u.periodic.envelope);
tprintf(", custom_len=%u, custom_data=",
ffe.u.periodic.custom_len);
printaddr(ptr_to_kulong(ffe.u.periodic.custom_data));
tprints("}");
break;
case FF_RUMBLE:
tprintf(", rumble={strong_magnitude=%" PRIu16
", weak_magnitude=%" PRIu16 "}",
ffe.u.rumble.strong_magnitude,
ffe.u.rumble.weak_magnitude);
break;
default:
break;
}
tprints("}");
return RVAL_IOCTL_DECODED;
}
MPERS_PRINTER_DECL(int, evdev_write_ioctl_mpers, struct tcb *const tcp,
const unsigned int code, const kernel_ulong_t arg)
{
switch (code) {
case EVIOCSFF:
return ff_effect_ioctl(tcp, arg);
default:
return RVAL_DECODED;
}
}
#endif /* HAVE_LINUX_INPUT_H */
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