ebiten/internal/gamepad/api_linux.go

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// Copyright 2022 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !android && !ebitenginecbackend && !ebitencbackend
// +build !android,!ebitenginecbackend,!ebitencbackend
package gamepad
import (
"unsafe"
"golang.org/x/sys/unix"
)
const (
_ABS_HAT0X = 0x10
_ABS_HAT3Y = 0x17
_ABS_MAX = 0x3f
_ABS_CNT = _ABS_MAX + 1
_BTN_MISC = 0x100
_IOC_NONE = 0
_IOC_WRITE = 1
_IOC_READ = 2
_IOC_NRBITS = 8
_IOC_TYPEBITS = 8
_IOC_SIZEBITS = 14
_IOC_DIRBITS = 2
_IOC_NRSHIFT = 0
_IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS
_IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS
_IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS
_KEY_MAX = 0x2ff
_KEY_CNT = _KEY_MAX + 1
_SYN_REPORT = 0
_SYN_DROPPED = 3
)
func _IOC(dir, typ, nr, size uint) uint {
return dir<<_IOC_DIRSHIFT | typ<<_IOC_TYPESHIFT | nr<<_IOC_NRSHIFT | size<<_IOC_SIZESHIFT
}
func _IOR(typ, nr, size uint) uint {
return _IOC(_IOC_READ, typ, nr, size)
}
func _EVIOCGABS(abs uint) uint {
return _IOR('E', 0x40+abs, uint(unsafe.Sizeof(input_absinfo{})))
}
func _EVIOCGBIT(ev, len uint) uint {
return _IOC(_IOC_READ, 'E', 0x20+ev, len)
}
func _EVIOCGID() uint {
return _IOR('E', 0x02, uint(unsafe.Sizeof(input_id{})))
}
func _EVIOCGNAME(len uint) uint {
return _IOC(_IOC_READ, 'E', 0x06, len)
}
type input_absinfo struct {
value int32
minimum int32
maximum int32
fuzz int32
flat int32
resolution int32
}
type input_event struct {
time unix.Timeval
typ uint16
code uint16
value int32
}
type input_id struct {
bustype uint16
vendor uint16
product uint16
version uint16
}
func ioctl(fd int, request uint, ptr unsafe.Pointer) error {
r, _, e := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(request), uintptr(ptr))
if r < 0 {
return unix.Errno(e)
}
return nil
}