diff options
Diffstat (limited to 'sys/dev/hid/hidraw.h')
| -rw-r--r-- | sys/dev/hid/hidraw.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sys/dev/hid/hidraw.h b/sys/dev/hid/hidraw.h new file mode 100644 index 000000000000..4eaf8650a332 --- /dev/null +++ b/sys/dev/hid/hidraw.h @@ -0,0 +1,97 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (c) 2020 Vladimir Kondratyev <wulf@FreeBSD.org> + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. + * + * $FreeBSD$ + */ + +#ifndef _HID_HIDRAW_H +#define _HID_HIDRAW_H + +#include <sys/ioccom.h> + +#define HIDRAW_BUFFER_SIZE 64 /* number of input reports buffered */ +#define HID_MAX_DESCRIPTOR_SIZE 4096 /* artificial limit taken from Linux */ + +/* + * Align IOCTL structures to hide differences when running 32-bit + * programs under 64-bit kernels: + */ +#ifdef COMPAT_32BIT +#define HIDRAW_IOCTL_STRUCT_ALIGN(n) __aligned(n) +#else +#define HIDRAW_IOCTL_STRUCT_ALIGN(n) +#endif + +/* Compatible with usb_gen_descriptor structure */ +struct hidraw_gen_descriptor { +#ifdef COMPAT_32BIT + uint64_t hgd_data; +#else + void *hgd_data; +#endif + uint16_t hgd_lang_id; + uint16_t hgd_maxlen; + uint16_t hgd_actlen; + uint16_t hgd_offset; + uint8_t hgd_config_index; + uint8_t hgd_string_index; + uint8_t hgd_iface_index; + uint8_t hgd_altif_index; + uint8_t hgd_endpt_index; + uint8_t hgd_report_type; + uint8_t reserved[8]; +} HIDRAW_IOCTL_STRUCT_ALIGN(8); + +struct hidraw_report_descriptor { + uint32_t size; + uint8_t value[HID_MAX_DESCRIPTOR_SIZE]; +} HIDRAW_IOCTL_STRUCT_ALIGN(4); + +struct hidraw_devinfo { + uint32_t bustype; + int16_t vendor; + int16_t product; +} HIDRAW_IOCTL_STRUCT_ALIGN(4); + +/* FreeBSD uhid(4)-compatible ioctl interface */ +#define HIDRAW_GET_REPORT_DESC _IOWR('U', 21, struct hidraw_gen_descriptor) +#define HIDRAW_SET_IMMED _IOW ('U', 22, int) +#define HIDRAW_GET_REPORT _IOWR('U', 23, struct hidraw_gen_descriptor) +#define HIDRAW_SET_REPORT _IOW ('U', 24, struct hidraw_gen_descriptor) +#define HIDRAW_GET_REPORT_ID _IOR ('U', 25, int) +#define HIDRAW_SET_REPORT_DESC _IOW ('U', 26, struct hidraw_gen_descriptor) + +/* Linux hidraw-compatible ioctl interface */ +#define HIDIOCGRDESCSIZE _IOR('U', 30, int) +#define HIDIOCGRDESC _IO ('U', 31) +#define HIDIOCGRAWINFO _IOR('U', 32, struct hidraw_devinfo) +#define HIDIOCGRAWNAME(len) _IOC(IOC_OUT, 'U', 33, len) +#define HIDIOCGRAWPHYS(len) _IOC(IOC_OUT, 'U', 34, len) +#define HIDIOCSFEATURE(len) _IOC(IOC_IN, 'U', 35, len) +#define HIDIOCGFEATURE(len) _IOC(IOC_INOUT, 'U', 36, len) +#define HIDIOCGRAWUNIQ(len) _IOC(IOC_OUT, 'U', 37, len) + +#endif /* _HID_HIDRAW_H */ |