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Signed-off-by: Stacey Son Reviewed-by: Pierrick Bouvier Signed-off-by: Warner Losh --- bsd-user/freebsd/os-ioctl-ioccom.h | 43 ++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 bsd-user/freebsd/os-ioctl-ioccom.h diff --git a/bsd-user/freebsd/os-ioctl-ioccom.h b/bsd-user/freebsd/os-ioctl-ioccom.h new file mode 100644 index 0000000000..3bb9ef2710 --- /dev/null +++ b/bsd-user/freebsd/os-ioctl-ioccom.h @@ -0,0 +1,43 @@ +/* + * FreeBSD ioccom definitions for ioctl(2) emulation + * + * Copyright (c) 2013 Stacey D. Son + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#ifndef BSD_USER_FREEBSD_OS_IOCTL_IOCCOM_H +#define BSD_USER_FREEBSD_OS_IOCTL_IOCCOM_H + +/* + * Ioctl's have the command encoded in the lower word, and the size of + * any in or out parameters in the upper word. The high 3 bits of the + * upper word are used to encode the in/out status of the parameter. + */ +/* number of bits for ioctl size */ +#define TARGET_IOCPARM_SHIFT 13 + +/* parameter length mask */ +#define TARGET_IOCPARM_MASK ((1 << TARGET_IOCPARM_SHIFT) - 1) + +#define TARGET_IOCPARM_LEN(x) (((x) >> 16) & TARGET_IOCPARM_MASK) +#define TARGET_IOCBASECMD(x) ((x) & ~(TARGET_IOCPARM_MASK << 16)) +#define TARGET_IOCGROUP(x) (((x) >> 8) & 0xff) + +#define TARGET_IOCPARM_MAX (1 << TARGET_IOCPARM_SHIFT) /* max size of ioctl */ +#define TARGET_IOC_VOID 0x20000000 /* no parameters */ +#define TARGET_IOC_OUT 0x40000000 /* copy out parameters */ +#define TARGET_IOC_IN 0x80000000 /* copy in parameters */ +#define TARGET_IOC_INOUT (TARGET_IOC_IN | TARGET_IOC_OUT) +#define TARGET_IOC_DIRMASK (TARGET_IOC_VOID | TARGET_IOC_OUT | TARGET_IOC_IN) + +#define TARGET_IOC(inout, group, num, len) ((abi_ulong) \ + ((inout) | (((len) & TARGET_IOCPARM_MASK) << 16) | ((group) << 8) \ + | (num))) +#define TARGET_IO(g, n) TARGET_IOC(TARGET_IOC_VOID, (g), (n), 0) +#define TARGET_IOWINT(g, n) TARGET_IOC(TARGET_IOC_VOID, (g), (n), sizeof(int)) +#define TARGET_IOR(g, n, t) TARGET_IOC(TARGET_IOC_OUT, (g), (n), sizeof(t)) +#define TARGET_IOW(g, n, t) TARGET_IOC(TARGET_IOC_IN, (g), (n), sizeof(t)) +/* this should be _IORW, but stdio got there first */ +#define TARGET_IOWR(g, n, t) TARGET_IOC(TARGET_IOC_INOUT, (g), (n), sizeof(t)) + +#endif /* BSD_USER_FREEBSD_OS_IOCTL_IOCCOM_H */ -- 2.52.0