This adds a copy of pre generated bindings and adds the suggested way of updating those in README.

Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- bindings/rust/libgpiod-sys/README.md | 10 + bindings/rust/libgpiod-sys/src/bindings.rs | 1920 ++++++++++++++++++++ 2 files changed, 1930 insertions(+) create mode 100644 bindings/rust/libgpiod-sys/README.md create mode 100644 bindings/rust/libgpiod-sys/src/bindings.rs

diff --git a/bindings/rust/libgpiod-sys/README.md b/bindings/rust/libgpiod-sys/README.md new file mode 100644 index 000000000000..ea037d6d7803 --- /dev/null +++ b/bindings/rust/libgpiod-sys/README.md @@ -0,0 +1,10 @@ +# Generated libgpiod-sys Rust FFI bindings +Automatically generated Rust FFI bindings via + [bindgen](https://github.com/rust-lang/rust-bindgen). + +## Updating bindings +1. Clone the source from + https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/ +2. run `cd libgpiod/bindings/rust/libgpiod-sys/` +2. run `cargo build --features generate` +3. Commit changes in `src/bindings.rs` diff --git a/bindings/rust/libgpiod-sys/src/bindings.rs b/bindings/rust/libgpiod-sys/src/bindings.rs new file mode 100644 index 000000000000..930eb894f66f --- /dev/null +++ b/bindings/rust/libgpiod-sys/src/bindings.rs @@ -0,0 +1,1920 @@ +/* automatically generated by rust-bindgen 0.59.2 */ + +pub const _STRING_H: u32 = 1; +pub const _FEATURES_H: u32 = 1; +pub const _DEFAULT_SOURCE: u32 = 1; +pub const __GLIBC_USE_ISOC2X: u32 = 0; +pub const __USE_ISOC11: u32 = 1; +pub const __USE_ISOC99: u32 = 1; +pub const __USE_ISOC95: u32 = 1; +pub const __USE_POSIX_IMPLICITLY: u32 = 1; +pub const _POSIX_SOURCE: u32 = 1; +pub const _POSIX_C_SOURCE: u32 = 200809; +pub const __USE_POSIX: u32 = 1; +pub const __USE_POSIX2: u32 = 1; +pub const __USE_POSIX199309: u32 = 1; +pub const __USE_POSIX199506: u32 = 1; +pub const __USE_XOPEN2K: u32 = 1; +pub const __USE_XOPEN2K8: u32 = 1; +pub const _ATFILE_SOURCE: u32 = 1; +pub const __USE_MISC: u32 = 1; +pub const __USE_ATFILE: u32 = 1; +pub const __USE_FORTIFY_LEVEL: u32 = 0; +pub const __GLIBC_USE_DEPRECATED_GETS: u32 = 0; +pub const __GLIBC_USE_DEPRECATED_SCANF: u32 = 0; +pub const _STDC_PREDEF_H: u32 = 1; +pub const __STDC_IEC_559__: u32 = 1; +pub const __STDC_IEC_559_COMPLEX__: u32 = 1; +pub const __STDC_ISO_10646__: u32 = 201706; +pub const __GNU_LIBRARY__: u32 = 6; +pub const __GLIBC__: u32 = 2; +pub const __GLIBC_MINOR__: u32 = 31; +pub const _SYS_CDEFS_H: u32 = 1; +pub const __glibc_c99_flexarr_available: u32 = 1; +pub const __WORDSIZE: u32 = 64; +pub const __WORDSIZE_TIME64_COMPAT32: u32 = 1; +pub const __SYSCALL_WORDSIZE: u32 = 64; +pub const __LONG_DOUBLE_USES_FLOAT128: u32 = 0; +pub const __HAVE_GENERIC_SELECTION: u32 = 1; +pub const __GLIBC_USE_LIB_EXT2: u32 = 0; +pub const __GLIBC_USE_IEC_60559_BFP_EXT: u32 = 0; +pub const __GLIBC_USE_IEC_60559_BFP_EXT_C2X: u32 = 0; +pub const __GLIBC_USE_IEC_60559_FUNCS_EXT: u32 = 0; +pub const __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X: u32 = 0; +pub const __GLIBC_USE_IEC_60559_TYPES_EXT: u32 = 0; +pub const _BITS_TYPES_LOCALE_T_H: u32 = 1; +pub const _BITS_TYPES___LOCALE_T_H: u32 = 1; +pub const _STRINGS_H: u32 = 1; +pub const true_: u32 = 1; +pub const false_: u32 = 0; +pub const __bool_true_false_are_defined: u32 = 1; +pub const _STDINT_H: u32 = 1; +pub const _BITS_TYPES_H: u32 = 1; +pub const __TIMESIZE: u32 = 64; +pub const _BITS_TYPESIZES_H: u32 = 1; +pub const __OFF_T_MATCHES_OFF64_T: u32 = 1; +pub const __INO_T_MATCHES_INO64_T: u32 = 1; +pub const __RLIM_T_MATCHES_RLIM64_T: u32 = 1; +pub const __STATFS_MATCHES_STATFS64: u32 = 1; +pub const __FD_SETSIZE: u32 = 1024; +pub const _BITS_TIME64_H: u32 = 1; +pub const _BITS_WCHAR_H: u32 = 1; +pub const _BITS_STDINT_INTN_H: u32 = 1; +pub const _BITS_STDINT_UINTN_H: u32 = 1; +pub const INT8_MIN: i32 = -128; +pub const INT16_MIN: i32 = -32768; +pub const INT32_MIN: i32 = -2147483648; +pub const INT8_MAX: u32 = 127; +pub const INT16_MAX: u32 = 32767; +pub const INT32_MAX: u32 = 2147483647; +pub const UINT8_MAX: u32 = 255; +pub const UINT16_MAX: u32 = 65535; +pub const UINT32_MAX: u32 = 4294967295; +pub const INT_LEAST8_MIN: i32 = -128; +pub const INT_LEAST16_MIN: i32 = -32768; +pub const INT_LEAST32_MIN: i32 = -2147483648; +pub const INT_LEAST8_MAX: u32 = 127; +pub const INT_LEAST16_MAX: u32 = 32767; +pub const INT_LEAST32_MAX: u32 = 2147483647; +pub const UINT_LEAST8_MAX: u32 = 255; +pub const UINT_LEAST16_MAX: u32 = 65535; +pub const UINT_LEAST32_MAX: u32 = 4294967295; +pub const INT_FAST8_MIN: i32 = -128; +pub const INT_FAST16_MIN: i64 = -9223372036854775808; +pub const INT_FAST32_MIN: i64 = -9223372036854775808; +pub const INT_FAST8_MAX: u32 = 127; +pub const INT_FAST16_MAX: u64 = 9223372036854775807; +pub const INT_FAST32_MAX: u64 = 9223372036854775807; +pub const UINT_FAST8_MAX: u32 = 255; +pub const UINT_FAST16_MAX: i32 = -1; +pub const UINT_FAST32_MAX: i32 = -1; +pub const INTPTR_MIN: i64 = -9223372036854775808; +pub const INTPTR_MAX: u64 = 9223372036854775807; +pub const UINTPTR_MAX: i32 = -1; +pub const PTRDIFF_MIN: i64 = -9223372036854775808; +pub const PTRDIFF_MAX: u64 = 9223372036854775807; +pub const SIG_ATOMIC_MIN: i32 = -2147483648; +pub const SIG_ATOMIC_MAX: u32 = 2147483647; +pub const SIZE_MAX: i32 = -1; +pub const WINT_MIN: u32 = 0; +pub const WINT_MAX: u32 = 4294967295; +pub type size_t = ::std::os::raw::c_ulong; +extern "C" { + pub fn memcpy( + __dest: *mut ::std::os::raw::c_void, + __src: *const ::std::os::raw::c_void, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_void; +} +extern "C" { + pub fn memmove( + __dest: *mut ::std::os::raw::c_void, + __src: *const ::std::os::raw::c_void, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_void; +} +extern "C" { + pub fn memccpy( + __dest: *mut ::std::os::raw::c_void, + __src: *const ::std::os::raw::c_void, + __c: ::std::os::raw::c_int, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_void; +} +extern "C" { + pub fn memset( + __s: *mut ::std::os::raw::c_void, + __c: ::std::os::raw::c_int, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_void; +} +extern "C" { + pub fn memcmp( + __s1: *const ::std::os::raw::c_void, + __s2: *const ::std::os::raw::c_void, + __n: ::std::os::raw::c_ulong, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn memchr( + __s: *const ::std::os::raw::c_void, + __c: ::std::os::raw::c_int, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_void; +} +extern "C" { + pub fn strcpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strncpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strcat( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strncat( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strcmp( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strncmp( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strcoll( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strxfrm( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> ::std::os::raw::c_ulong; +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct __locale_struct { + pub __locales: [*mut __locale_data; 13usize], + pub __ctype_b: *const ::std::os::raw::c_ushort, + pub __ctype_tolower: *const ::std::os::raw::c_int, + pub __ctype_toupper: *const ::std::os::raw::c_int, + pub __names: [*const ::std::os::raw::c_char; 13usize], +} +#[test] +fn bindgen_test_layout___locale_struct() { + assert_eq!( + ::std::mem::size_of::<__locale_struct>(), + 232usize, + concat!("Size of: ", stringify!(__locale_struct)) + ); + assert_eq!( + ::std::mem::align_of::<__locale_struct>(), + 8usize, + concat!("Alignment of ", stringify!(__locale_struct)) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__locale_struct>())).__locales as *const _ as usize }, + 0usize, + concat!( + "Offset of field: ", + stringify!(__locale_struct), + "::", + stringify!(__locales) + ) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__locale_struct>())).__ctype_b as *const _ as usize }, + 104usize, + concat!( + "Offset of field: ", + stringify!(__locale_struct), + "::", + stringify!(__ctype_b) + ) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__locale_struct>())).__ctype_tolower as *const _ as usize }, + 112usize, + concat!( + "Offset of field: ", + stringify!(__locale_struct), + "::", + stringify!(__ctype_tolower) + ) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__locale_struct>())).__ctype_toupper as *const _ as usize }, + 120usize, + concat!( + "Offset of field: ", + stringify!(__locale_struct), + "::", + stringify!(__ctype_toupper) + ) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__locale_struct>())).__names as *const _ as usize }, + 128usize, + concat!( + "Offset of field: ", + stringify!(__locale_struct), + "::", + stringify!(__names) + ) + ); +} +pub type __locale_t = *mut __locale_struct; +pub type locale_t = __locale_t; +extern "C" { + pub fn strcoll_l( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + __l: locale_t, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strxfrm_l( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: size_t, + __l: locale_t, + ) -> size_t; +} +extern "C" { + pub fn strdup(__s: *const ::std::os::raw::c_char) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strndup( + __string: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strchr( + __s: *const ::std::os::raw::c_char, + __c: ::std::os::raw::c_int, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strrchr( + __s: *const ::std::os::raw::c_char, + __c: ::std::os::raw::c_int, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strcspn( + __s: *const ::std::os::raw::c_char, + __reject: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + pub fn strspn( + __s: *const ::std::os::raw::c_char, + __accept: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + pub fn strpbrk( + __s: *const ::std::os::raw::c_char, + __accept: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strstr( + __haystack: *const ::std::os::raw::c_char, + __needle: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strtok( + __s: *mut ::std::os::raw::c_char, + __delim: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn __strtok_r( + __s: *mut ::std::os::raw::c_char, + __delim: *const ::std::os::raw::c_char, + __save_ptr: *mut *mut ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strtok_r( + __s: *mut ::std::os::raw::c_char, + __delim: *const ::std::os::raw::c_char, + __save_ptr: *mut *mut ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strlen(__s: *const ::std::os::raw::c_char) -> ::std::os::raw::c_ulong; +} +extern "C" { + pub fn strnlen(__string: *const ::std::os::raw::c_char, __maxlen: size_t) -> size_t; +} +extern "C" { + pub fn strerror(__errnum: ::std::os::raw::c_int) -> *mut ::std::os::raw::c_char; +} +extern "C" { + #[link_name = "\u{1}__xpg_strerror_r"] + pub fn strerror_r( + __errnum: ::std::os::raw::c_int, + __buf: *mut ::std::os::raw::c_char, + __buflen: size_t, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strerror_l( + __errnum: ::std::os::raw::c_int, + __l: locale_t, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn bcmp( + __s1: *const ::std::os::raw::c_void, + __s2: *const ::std::os::raw::c_void, + __n: ::std::os::raw::c_ulong, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn bcopy( + __src: *const ::std::os::raw::c_void, + __dest: *mut ::std::os::raw::c_void, + __n: size_t, + ); +} +extern "C" { + pub fn bzero(__s: *mut ::std::os::raw::c_void, __n: ::std::os::raw::c_ulong); +} +extern "C" { + pub fn index( + __s: *const ::std::os::raw::c_char, + __c: ::std::os::raw::c_int, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn rindex( + __s: *const ::std::os::raw::c_char, + __c: ::std::os::raw::c_int, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn ffs(__i: ::std::os::raw::c_int) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn ffsl(__l: ::std::os::raw::c_long) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn ffsll(__ll: ::std::os::raw::c_longlong) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strcasecmp( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strncasecmp( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strcasecmp_l( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + __loc: locale_t, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn strncasecmp_l( + __s1: *const ::std::os::raw::c_char, + __s2: *const ::std::os::raw::c_char, + __n: size_t, + __loc: locale_t, + ) -> ::std::os::raw::c_int; +} +extern "C" { + pub fn explicit_bzero(__s: *mut ::std::os::raw::c_void, __n: size_t); +} +extern "C" { + pub fn strsep( + __stringp: *mut *mut ::std::os::raw::c_char, + __delim: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn strsignal(__sig: ::std::os::raw::c_int) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn __stpcpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn stpcpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn __stpncpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: size_t, + ) -> *mut ::std::os::raw::c_char; +} +extern "C" { + pub fn stpncpy( + __dest: *mut ::std::os::raw::c_char, + __src: *const ::std::os::raw::c_char, + __n: ::std::os::raw::c_ulong, + ) -> *mut ::std::os::raw::c_char; +} +pub type wchar_t = ::std::os::raw::c_int; +#[repr(C)] +#[repr(align(16))] +#[derive(Debug, Copy, Clone)] +pub struct max_align_t { + pub __clang_max_align_nonce1: ::std::os::raw::c_longlong, + pub __bindgen_padding_0: u64, + pub __clang_max_align_nonce2: u128, +} +#[test] +fn bindgen_test_layout_max_align_t() { + assert_eq!( + ::std::mem::size_of::<max_align_t>(), + 32usize, + concat!("Size of: ", stringify!(max_align_t)) + ); + assert_eq!( + ::std::mem::align_of::<max_align_t>(), + 16usize, + concat!("Alignment of ", stringify!(max_align_t)) + ); + assert_eq!( + unsafe { + &(*(::std::ptr::null::<max_align_t>())).__clang_max_align_nonce1 as *const _ as usize + }, + 0usize, + concat!( + "Offset of field: ", + stringify!(max_align_t), + "::", + stringify!(__clang_max_align_nonce1) + ) + ); + assert_eq!( + unsafe { + &(*(::std::ptr::null::<max_align_t>())).__clang_max_align_nonce2 as *const _ as usize + }, + 16usize, + concat!( + "Offset of field: ", + stringify!(max_align_t), + "::", + stringify!(__clang_max_align_nonce2) + ) + ); +} +pub type __u_char = ::std::os::raw::c_uchar; +pub type __u_short = ::std::os::raw::c_ushort; +pub type __u_int = ::std::os::raw::c_uint; +pub type __u_long = ::std::os::raw::c_ulong; +pub type __int8_t = ::std::os::raw::c_schar; +pub type __uint8_t = ::std::os::raw::c_uchar; +pub type __int16_t = ::std::os::raw::c_short; +pub type __uint16_t = ::std::os::raw::c_ushort; +pub type __int32_t = ::std::os::raw::c_int; +pub type __uint32_t = ::std::os::raw::c_uint; +pub type __int64_t = ::std::os::raw::c_long; +pub type __uint64_t = ::std::os::raw::c_ulong; +pub type __int_least8_t = __int8_t; +pub type __uint_least8_t = __uint8_t; +pub type __int_least16_t = __int16_t; +pub type __uint_least16_t = __uint16_t; +pub type __int_least32_t = __int32_t; +pub type __uint_least32_t = __uint32_t; +pub type __int_least64_t = __int64_t; +pub type __uint_least64_t = __uint64_t; +pub type __quad_t = ::std::os::raw::c_long; +pub type __u_quad_t = ::std::os::raw::c_ulong; +pub type __intmax_t = ::std::os::raw::c_long; +pub type __uintmax_t = ::std::os::raw::c_ulong; +pub type __dev_t = ::std::os::raw::c_ulong; +pub type __uid_t = ::std::os::raw::c_uint; +pub type __gid_t = ::std::os::raw::c_uint; +pub type __ino_t = ::std::os::raw::c_ulong; +pub type __ino64_t = ::std::os::raw::c_ulong; +pub type __mode_t = ::std::os::raw::c_uint; +pub type __nlink_t = ::std::os::raw::c_ulong; +pub type __off_t = ::std::os::raw::c_long; +pub type __off64_t = ::std::os::raw::c_long; +pub type __pid_t = ::std::os::raw::c_int; +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct __fsid_t { + pub __val: [::std::os::raw::c_int; 2usize], +} +#[test] +fn bindgen_test_layout___fsid_t() { + assert_eq!( + ::std::mem::size_of::<__fsid_t>(), + 8usize, + concat!("Size of: ", stringify!(__fsid_t)) + ); + assert_eq!( + ::std::mem::align_of::<__fsid_t>(), + 4usize, + concat!("Alignment of ", stringify!(__fsid_t)) + ); + assert_eq!( + unsafe { &(*(::std::ptr::null::<__fsid_t>())).__val as *const _ as usize }, + 0usize, + concat!( + "Offset of field: ", + stringify!(__fsid_t), + "::", + stringify!(__val) + ) + ); +} +pub type __clock_t = ::std::os::raw::c_long; +pub type __rlim_t = ::std::os::raw::c_ulong; +pub type __rlim64_t = ::std::os::raw::c_ulong; +pub type __id_t = ::std::os::raw::c_uint; +pub type __time_t = ::std::os::raw::c_long; +pub type __useconds_t = ::std::os::raw::c_uint; +pub type __suseconds_t = ::std::os::raw::c_long; +pub type __daddr_t = ::std::os::raw::c_int; +pub type __key_t = ::std::os::raw::c_int; +pub type __clockid_t = ::std::os::raw::c_int; +pub type __timer_t = *mut ::std::os::raw::c_void; +pub type __blksize_t = ::std::os::raw::c_long; +pub type __blkcnt_t = ::std::os::raw::c_long; +pub type __blkcnt64_t = ::std::os::raw::c_long; +pub type __fsblkcnt_t = ::std::os::raw::c_ulong; +pub type __fsblkcnt64_t = ::std::os::raw::c_ulong; +pub type __fsfilcnt_t = ::std::os::raw::c_ulong; +pub type __fsfilcnt64_t = ::std::os::raw::c_ulong; +pub type __fsword_t = ::std::os::raw::c_long; +pub type __ssize_t = ::std::os::raw::c_long; +pub type __syscall_slong_t = ::std::os::raw::c_long; +pub type __syscall_ulong_t = ::std::os::raw::c_ulong; +pub type __loff_t = __off64_t; +pub type __caddr_t = *mut ::std::os::raw::c_char; +pub type __intptr_t = ::std::os::raw::c_long; +pub type __socklen_t = ::std::os::raw::c_uint; +pub type __sig_atomic_t = ::std::os::raw::c_int; +pub type int_least8_t = __int_least8_t; +pub type int_least16_t = __int_least16_t; +pub type int_least32_t = __int_least32_t; +pub type int_least64_t = __int_least64_t; +pub type uint_least8_t = __uint_least8_t; +pub type uint_least16_t = __uint_least16_t; +pub type uint_least32_t = __uint_least32_t; +pub type uint_least64_t = __uint_least64_t; +pub type int_fast8_t = ::std::os::raw::c_schar; +pub type int_fast16_t = ::std::os::raw::c_long; +pub type int_fast32_t = ::std::os::raw::c_long; +pub type int_fast64_t = ::std::os::raw::c_long; +pub type uint_fast8_t = ::std::os::raw::c_uchar; +pub type uint_fast16_t = ::std::os::raw::c_ulong; +pub type uint_fast32_t = ::std::os::raw::c_ulong; +pub type uint_fast64_t = ::std::os::raw::c_ulong; +pub type intmax_t = __intmax_t; +pub type uintmax_t = __uintmax_t; +#[doc = " @mainpage libgpiod public API"] +#[doc = ""] +#[doc = " This is the complete documentation of the public API made available to"] +#[doc = " users of libgpiod."] +#[doc = ""] +#[doc = " <p>The API is logically split into several parts such as: GPIO chip & line"] +#[doc = " operators, GPIO events handling etc."] +#[doc = ""] +#[doc = " <p>General note on error handling: all functions exported by libgpiod that"] +#[doc = " can fail, set errno to one of the error values defined in errno.h upon"] +#[doc = " failure. The way of notifying the caller that an error occurred varies"] +#[doc = " between functions, but in general a function that returns an int, returns -1"] +#[doc = " on error, while a function returning a pointer indicates an error condition"] +#[doc = " by returning a NULL pointer. It's not practical to list all possible error"] +#[doc = " codes for every function as they propagate errors from the underlying libc"] +#[doc = " functions."] +#[doc = ""] +#[doc = " <p>In general libgpiod functions are not NULL-aware and it's expected that"] +#[doc = " users pass valid pointers to objects as arguments. An exception to this rule"] +#[doc = " are the functions that free/close/release resources - which work when passed"] +#[doc = " a NULL-pointer as argument. Other exceptions are documented."] +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_chip { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_chip_info { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_line_info { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_line_config { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_request_config { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_line_request { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_info_event { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_edge_event { + _unused: [u8; 0], +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct gpiod_edge_event_buffer { + _unused: [u8; 0], +} +extern "C" { + #[doc = " @brief Open a chip by path."] + #[doc = " @param path Path to the gpiochip device file."] + #[doc = " @return GPIO chip request or NULL if an error occurred."] + pub fn gpiod_chip_open(path: *const ::std::os::raw::c_char) -> *mut gpiod_chip; +} +extern "C" { + #[doc = " @brief Close the chip and release all associated resources."] + #[doc = " @param chip Chip to close."] + pub fn gpiod_chip_close(chip: *mut gpiod_chip); +} +extern "C" { + #[doc = " @brief Get information about the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @return New GPIO chip info object or NULL if an error occurred. The returned"] + #[doc = " object must be freed by the caller using ::gpiod_chip_info_free."] + pub fn gpiod_chip_get_info(chip: *mut gpiod_chip) -> *mut gpiod_chip_info; +} +extern "C" { + #[doc = " @brief Get the path used to open the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @return Path to the file passed as argument to ::gpiod_chip_open."] + pub fn gpiod_chip_get_path(chip: *mut gpiod_chip) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Get a snapshot of information about a line."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param offset The offset of the GPIO line."] + #[doc = " @return New GPIO line info object or NULL if an error occurred. The returned"] + #[doc = "\t object must be freed by the caller using ::gpiod_line_info_free."] + pub fn gpiod_chip_get_line_info( + chip: *mut gpiod_chip, + offset: ::std::os::raw::c_uint, + ) -> *mut gpiod_line_info; +} +extern "C" { + #[doc = " @brief Get a snapshot of the status of a line and start watching it for"] + #[doc = "\t future changes."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param offset The offset of the GPIO line."] + #[doc = " @return New GPIO line info object or NULL if an error occurred. The returned"] + #[doc = "\t object must be freed by the caller using ::gpiod_line_info_free."] + #[doc = " @note Line status does not include the line value. To monitor the line"] + #[doc = "\t value the line must be requested as an input with edge detection set."] + pub fn gpiod_chip_watch_line_info( + chip: *mut gpiod_chip, + offset: ::std::os::raw::c_uint, + ) -> *mut gpiod_line_info; +} +extern "C" { + #[doc = " @brief Stop watching a line for status changes."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param offset The offset of the line to stop watching."] + #[doc = " @return 0 on success, -1 on failure."] + pub fn gpiod_chip_unwatch_line_info( + chip: *mut gpiod_chip, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the file descriptor associated with the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @return File descriptor number for the chip."] + #[doc = "\t This function never fails."] + #[doc = "\t The returned file descriptor must not be closed by the caller."] + #[doc = "\t Call ::gpiod_chip_close to close the file descriptor."] + pub fn gpiod_chip_get_fd(chip: *mut gpiod_chip) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Wait for line status change events on any of the watched lines"] + #[doc = "\t on the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param timeout_ns Wait time limit in nanoseconds. If set to 0, the function"] + #[doc = "\t\t returns immediatelly. If set to a negative number, the"] + #[doc = "\t\t function blocks indefinitely until an event becomes"] + #[doc = "\t\t available."] + #[doc = " @return 0 if wait timed out, -1 if an error occurred, 1 if an event is"] + #[doc = "\t pending."] + pub fn gpiod_chip_wait_info_event( + chip: *mut gpiod_chip, + timeout_ns: i64, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Read a single line status change event from the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @return Newly read watch event object or NULL on error. The event must be"] + #[doc = "\t freed by the caller using ::gpiod_info_event_free."] + #[doc = " @note If no events are pending, this function will block."] + pub fn gpiod_chip_read_info_event(chip: *mut gpiod_chip) -> *mut gpiod_info_event; +} +extern "C" { + #[doc = " @brief Map a line's name to its offset within the chip."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param name Name of the GPIO line to map."] + #[doc = " @return Offset of the line within the chip or -1 on error."] + #[doc = " @note If a line with given name is not exposed by the chip, the function"] + #[doc = " sets errno to ENOENT."] + pub fn gpiod_chip_get_line_offset_from_name( + chip: *mut gpiod_chip, + name: *const ::std::os::raw::c_char, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Request a set of lines for exclusive usage."] + #[doc = " @param chip GPIO chip object."] + #[doc = " @param req_cfg Request config object."] + #[doc = " @param line_cfg Line config object."] + #[doc = " @return New line request object or NULL if an error occurred. The request"] + #[doc = "\t must be released by the caller using ::gpiod_line_request_release."] + #[doc = " @note Line configuration overrides for lines that are not requested are"] + #[doc = "\t silently ignored."] + pub fn gpiod_chip_request_lines( + chip: *mut gpiod_chip, + req_cfg: *mut gpiod_request_config, + line_cfg: *mut gpiod_line_config, + ) -> *mut gpiod_line_request; +} +extern "C" { + #[doc = " @brief Free a chip info object and release all associated resources."] + #[doc = " @param info GPIO chip info object to free."] + pub fn gpiod_chip_info_free(info: *mut gpiod_chip_info); +} +extern "C" { + #[doc = " @brief Get the name of the chip as represented in the kernel."] + #[doc = " @param info GPIO chip info object."] + #[doc = " @return Pointer to a human-readable string containing the chip name."] + pub fn gpiod_chip_info_get_name(info: *mut gpiod_chip_info) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Get the label of the chip as represented in the kernel."] + #[doc = " @param info GPIO chip info object."] + #[doc = " @return Pointer to a human-readable string containing the chip label."] + pub fn gpiod_chip_info_get_label(info: *mut gpiod_chip_info) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Get the number of lines exposed by the chip."] + #[doc = " @param info GPIO chip info object."] + #[doc = " @return Number of GPIO lines."] + pub fn gpiod_chip_info_get_num_lines(info: *mut gpiod_chip_info) -> size_t; +} +pub const GPIOD_LINE_VALUE_INACTIVE: ::std::os::raw::c_uint = 0; +pub const GPIOD_LINE_VALUE_ACTIVE: ::std::os::raw::c_uint = 1; +#[doc = " @brief Logical line state."] +pub type _bindgen_ty_1 = ::std::os::raw::c_uint; +pub const GPIOD_LINE_DIRECTION_AS_IS: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_DIRECTION_INPUT: ::std::os::raw::c_uint = 2; +pub const GPIOD_LINE_DIRECTION_OUTPUT: ::std::os::raw::c_uint = 3; +#[doc = " @brief Direction settings."] +pub type _bindgen_ty_2 = ::std::os::raw::c_uint; +pub const GPIOD_LINE_EDGE_NONE: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_EDGE_RISING: ::std::os::raw::c_uint = 2; +pub const GPIOD_LINE_EDGE_FALLING: ::std::os::raw::c_uint = 3; +pub const GPIOD_LINE_EDGE_BOTH: ::std::os::raw::c_uint = 4; +#[doc = " @brief Edge detection settings."] +pub type _bindgen_ty_3 = ::std::os::raw::c_uint; +pub const GPIOD_LINE_BIAS_AS_IS: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_BIAS_UNKNOWN: ::std::os::raw::c_uint = 2; +pub const GPIOD_LINE_BIAS_DISABLED: ::std::os::raw::c_uint = 3; +pub const GPIOD_LINE_BIAS_PULL_UP: ::std::os::raw::c_uint = 4; +pub const GPIOD_LINE_BIAS_PULL_DOWN: ::std::os::raw::c_uint = 5; +#[doc = " @brief Internal bias settings."] +pub type _bindgen_ty_4 = ::std::os::raw::c_uint; +pub const GPIOD_LINE_DRIVE_PUSH_PULL: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_DRIVE_OPEN_DRAIN: ::std::os::raw::c_uint = 2; +pub const GPIOD_LINE_DRIVE_OPEN_SOURCE: ::std::os::raw::c_uint = 3; +#[doc = " @brief Drive settings."] +pub type _bindgen_ty_5 = ::std::os::raw::c_uint; +pub const GPIOD_LINE_EVENT_CLOCK_MONOTONIC: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_EVENT_CLOCK_REALTIME: ::std::os::raw::c_uint = 2; +#[doc = " @brief Event clock settings."] +pub type _bindgen_ty_6 = ::std::os::raw::c_uint; +extern "C" { + #[doc = " @brief Free a line info object and release all associated resources."] + #[doc = " @param info GPIO line info object to free."] + pub fn gpiod_line_info_free(info: *mut gpiod_line_info); +} +extern "C" { + #[doc = " @brief Copy a line info object."] + #[doc = " @param info Line info to copy."] + #[doc = " @return Copy of the line info or NULL on error. The returned object must"] + #[doc = "\t be freed by the caller using :gpiod_line_info_free."] + pub fn gpiod_line_info_copy(info: *mut gpiod_line_info) -> *mut gpiod_line_info; +} +extern "C" { + #[doc = " @brief Get the offset of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Offset of the line within the parent chip."] + #[doc = ""] + #[doc = " The offset uniquely identifies the line on the chip."] + #[doc = " The combination of the chip and offset uniquely identifies the line within"] + #[doc = " the system."] + pub fn gpiod_line_info_get_offset(info: *mut gpiod_line_info) -> ::std::os::raw::c_uint; +} +extern "C" { + #[doc = " @brief Get the name of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Name of the GPIO line as it is represented in the kernel."] + #[doc = "\t This function returns a pointer to a null-terminated string"] + #[doc = "\t or NULL if the line is unnamed."] + pub fn gpiod_line_info_get_name(info: *mut gpiod_line_info) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Check if the line is in use."] + #[doc = " @param info GPIO line object."] + #[doc = " @return True if the line is in use, false otherwise."] + #[doc = ""] + #[doc = " The exact reason a line is busy cannot be determined from user space."] + #[doc = " It may have been requested by another process or hogged by the kernel."] + #[doc = " It only matters that the line is used and can't be requested until"] + #[doc = " released by the existing consumer."] + pub fn gpiod_line_info_is_used(info: *mut gpiod_line_info) -> bool; +} +extern "C" { + #[doc = " @brief Get the name of the consumer of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Name of the GPIO consumer as it is represented in the kernel."] + #[doc = "\t This function returns a pointer to a null-terminated string"] + #[doc = "\t or NULL if the consumer name is not set."] + pub fn gpiod_line_info_get_consumer( + info: *mut gpiod_line_info, + ) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Get the direction setting of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Returns ::GPIOD_LINE_DIRECTION_INPUT or"] + #[doc = "\t ::GPIOD_LINE_DIRECTION_OUTPUT."] + pub fn gpiod_line_info_get_direction(info: *mut gpiod_line_info) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the edge detection setting of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Returns ::GPIOD_LINE_EDGE_NONE, ::GPIOD_LINE_EDGE_RISING,"] + #[doc = "\t ::GPIOD_LINE_EDGE_FALLING or ::GPIOD_LINE_EDGE_BOTH."] + pub fn gpiod_line_info_get_edge_detection(info: *mut gpiod_line_info) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the bias setting of the line."] + #[doc = " @param info GPIO line object."] + #[doc = " @return Returns ::GPIOD_LINE_BIAS_PULL_UP, ::GPIOD_LINE_BIAS_PULL_DOWN,"] + #[doc = "\t ::GPIOD_LINE_BIAS_DISABLED or ::GPIOD_LINE_BIAS_UNKNOWN."] + pub fn gpiod_line_info_get_bias(info: *mut gpiod_line_info) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the drive setting of the line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Returns ::GPIOD_LINE_DRIVE_PUSH_PULL, ::GPIOD_LINE_DRIVE_OPEN_DRAIN"] + #[doc = "\t or ::GPIOD_LINE_DRIVE_OPEN_SOURCE."] + pub fn gpiod_line_info_get_drive(info: *mut gpiod_line_info) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Check if the logical value of the line is inverted compared to the"] + #[doc = "\t physical."] + #[doc = " @param info GPIO line object."] + #[doc = " @return True if the line is "active-low", false otherwise."] + pub fn gpiod_line_info_is_active_low(info: *mut gpiod_line_info) -> bool; +} +extern "C" { + #[doc = " @brief Check if the line is debounced (either by hardware or by the kernel"] + #[doc = "\t software debouncer)."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return True if the line is debounced, false otherwise."] + pub fn gpiod_line_info_is_debounced(info: *mut gpiod_line_info) -> bool; +} +extern "C" { + #[doc = " @brief Get the debounce period of the line, in microseconds."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Debounce period in microseconds."] + #[doc = "\t 0 if the line is not debounced."] + pub fn gpiod_line_info_get_debounce_period_us( + info: *mut gpiod_line_info, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + #[doc = " @brief Get the event clock setting used for edge event timestamps for the"] + #[doc = "\t line."] + #[doc = " @param info GPIO line info object."] + #[doc = " @return Returns ::GPIOD_LINE_EVENT_CLOCK_MONOTONIC or"] + #[doc = "\t ::GPIOD_LINE_EVENT_CLOCK_REALTIME."] + pub fn gpiod_line_info_get_event_clock(info: *mut gpiod_line_info) -> ::std::os::raw::c_int; +} +pub const GPIOD_INFO_EVENT_LINE_REQUESTED: ::std::os::raw::c_uint = 1; +pub const GPIOD_INFO_EVENT_LINE_RELEASED: ::std::os::raw::c_uint = 2; +pub const GPIOD_INFO_EVENT_LINE_CONFIG_CHANGED: ::std::os::raw::c_uint = 3; +#[doc = " @brief Line status change event types."] +pub type _bindgen_ty_7 = ::std::os::raw::c_uint; +extern "C" { + #[doc = " @brief Free the info event object and release all associated resources."] + #[doc = " @param event Info event to free."] + pub fn gpiod_info_event_free(event: *mut gpiod_info_event); +} +extern "C" { + #[doc = " @brief Get the event type of the status change event."] + #[doc = " @param event Line status watch event."] + #[doc = " @return One of ::GPIOD_INFO_EVENT_LINE_REQUESTED,"] + #[doc = "\t ::GPIOD_INFO_EVENT_LINE_RELEASED or"] + #[doc = "\t ::GPIOD_INFO_EVENT_LINE_CONFIG_CHANGED."] + pub fn gpiod_info_event_get_event_type(event: *mut gpiod_info_event) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the timestamp of the event."] + #[doc = " @param event Line status watch event."] + #[doc = " @return Timestamp in nanoseconds, read from the monotonic clock."] + pub fn gpiod_info_event_get_timestamp_ns(event: *mut gpiod_info_event) -> u64; +} +extern "C" { + #[doc = " @brief Get the snapshot of line-info associated with the event."] + #[doc = " @param event Line info event object."] + #[doc = " @return Returns a pointer to the line-info object associated with the event"] + #[doc = "\t whose lifetime is tied to the event object. It must not be freed by"] + #[doc = "\t the caller."] + pub fn gpiod_info_event_get_line_info(event: *mut gpiod_info_event) -> *mut gpiod_line_info; +} +extern "C" { + #[doc = " @brief Create a new line config object."] + #[doc = " @return New line config object or NULL on error."] + pub fn gpiod_line_config_new() -> *mut gpiod_line_config; +} +extern "C" { + #[doc = " @brief Free the line config object and release all associated resources."] + #[doc = " @param config Line config object to free."] + pub fn gpiod_line_config_free(config: *mut gpiod_line_config); +} +extern "C" { + #[doc = " @brief Reset the line config object."] + #[doc = " @param config Line config object to free."] + #[doc = ""] + #[doc = " Resets the entire configuration stored in the object. This is useful if"] + #[doc = " the user wants to reuse the object without reallocating it."] + pub fn gpiod_line_config_reset(config: *mut gpiod_line_config); +} +extern "C" { + #[doc = " @brief Set the default line direction."] + #[doc = " @param config Line config object."] + #[doc = " @param direction New direction."] + pub fn gpiod_line_config_set_direction_default( + config: *mut gpiod_line_config, + direction: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Set the direction override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param direction New direction."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_direction_override( + config: *mut gpiod_line_config, + direction: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the direction override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_direction_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the direction is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if direction is overridden on the line, false otherwise."] + pub fn gpiod_line_config_direction_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default direction setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Direction setting used for any non-overridden line."] + pub fn gpiod_line_config_get_direction_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the direction setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the direction."] + #[doc = " @return Direction setting for the line if the config object were used"] + #[doc = "\t in a request."] + pub fn gpiod_line_config_get_direction_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the default edge event detection."] + #[doc = " @param config Line config object."] + #[doc = " @param edge Type of edge events to detect."] + pub fn gpiod_line_config_set_edge_detection_default( + config: *mut gpiod_line_config, + edge: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Set the edge detection override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param edge Type of edge events to detect."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_edge_detection_override( + config: *mut gpiod_line_config, + edge: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the edge detection override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_edge_detection_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the edge detection setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if edge detection is overridden for the line, false otherwise."] + pub fn gpiod_line_config_edge_detection_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default edge detection setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Edge detection setting used for any non-overridden line."] + pub fn gpiod_line_config_get_edge_detection_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the edge event detection setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the edge event detection"] + #[doc = "\t\t setting."] + #[doc = " @return Edge event detection setting for the line if the config object"] + #[doc = "\t were used in a request."] + pub fn gpiod_line_config_get_edge_detection_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the default bias setting."] + #[doc = " @param config Line config object."] + #[doc = " @param bias New bias."] + pub fn gpiod_line_config_set_bias_default( + config: *mut gpiod_line_config, + bias: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Set the bias override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param bias New bias setting."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_bias_override( + config: *mut gpiod_line_config, + bias: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the bias override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_bias_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the bias setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if bias is overridden for the line, false otherwise."] + pub fn gpiod_line_config_bias_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default bias setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Bias setting used for any non-overridden line."] + pub fn gpiod_line_config_get_bias_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the bias setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the bias setting."] + #[doc = " @return Bias setting used for the line if the config object were used"] + #[doc = "\t in a request."] + pub fn gpiod_line_config_get_bias_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the default drive setting."] + #[doc = " @param config Line config object."] + #[doc = " @param drive New drive."] + pub fn gpiod_line_config_set_drive_default( + config: *mut gpiod_line_config, + drive: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Set the drive override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param drive New drive setting."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_drive_override( + config: *mut gpiod_line_config, + drive: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the drive override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_drive_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the drive setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if drive is overridden for the line, false otherwise."] + pub fn gpiod_line_config_drive_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default drive setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Drive setting for any non-overridden line."] + pub fn gpiod_line_config_get_drive_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the drive setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the drive setting."] + #[doc = " @return Drive setting for the line if the config object were used in a"] + #[doc = "\t request."] + pub fn gpiod_line_config_get_drive_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the default active-low setting."] + #[doc = " @param config Line config object."] + #[doc = " @param active_low New active-low setting."] + pub fn gpiod_line_config_set_active_low_default( + config: *mut gpiod_line_config, + active_low: bool, + ); +} +extern "C" { + #[doc = " @brief Override the active-low setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param active_low New active-low setting."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_active_low_override( + config: *mut gpiod_line_config, + active_low: bool, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the active-low override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_active_low_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the active-low setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if active-low is overridden for the line, false otherwise."] + pub fn gpiod_line_config_active_low_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Check if active-low is the default setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Active-low setting for any non-overridden line."] + pub fn gpiod_line_config_get_active_low_default(config: *mut gpiod_line_config) -> bool; +} +extern "C" { + #[doc = " @brief Check if a line is configured as active-low."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the active-low setting."] + #[doc = " @return Active-low setting for the line if the config object were used in"] + #[doc = "\t a request."] + pub fn gpiod_line_config_get_active_low_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Set the default debounce period."] + #[doc = " @param config Line config object."] + #[doc = " @param period New debounce period in microseconds. Disables debouncing if 0."] + #[doc = " @note Debouncing is only useful on input lines with edge detection."] + #[doc = "\t Its purpose is to filter spurious events due to noise during the"] + #[doc = "\t edge transition. It has no effect on normal get or set operations."] + pub fn gpiod_line_config_set_debounce_period_us_default( + config: *mut gpiod_line_config, + period: ::std::os::raw::c_ulong, + ); +} +extern "C" { + #[doc = " @brief Override the debounce period setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param period New debounce period in microseconds."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_debounce_period_us_override( + config: *mut gpiod_line_config, + period: ::std::os::raw::c_ulong, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the debounce period override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_debounce_period_us_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the debounce period setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if debounce period is overridden for the line, false"] + #[doc = "\t otherwise."] + pub fn gpiod_line_config_debounce_period_us_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default debounce period."] + #[doc = " @param config Line config object."] + #[doc = " @return Debounce period for any non-overridden line."] + #[doc = "\t Measured in microseconds."] + #[doc = "\t 0 if debouncing is disabled."] + pub fn gpiod_line_config_get_debounce_period_us_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + #[doc = " @brief Get the debounce period for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the debounce period."] + #[doc = " @return Debounce period for the line if the config object were used in a"] + #[doc = "\t request."] + #[doc = "\t Measured in microseconds."] + #[doc = "\t 0 if debouncing is disabled."] + pub fn gpiod_line_config_get_debounce_period_us_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + #[doc = " @brief Set the default event timestamp clock."] + #[doc = " @param config Line config object."] + #[doc = " @param clock New clock to use."] + pub fn gpiod_line_config_set_event_clock_default( + config: *mut gpiod_line_config, + clock: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Override the event clock setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param clock New event clock to use."] + #[doc = " @param offset The offset of the line for which to set the override."] + pub fn gpiod_line_config_set_event_clock_override( + config: *mut gpiod_line_config, + clock: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Clear the event clock override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_event_clock_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the event clock setting is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if event clock period is overridden for the line, false"] + #[doc = "\t otherwise."] + pub fn gpiod_line_config_event_clock_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default event clock setting."] + #[doc = " @param config Line config object."] + #[doc = " @return Event clock setting for any non-overridden line."] + pub fn gpiod_line_config_get_event_clock_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the event clock setting for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to read the event clock setting."] + #[doc = " @return Event clock setting for the line if the config object were used in a"] + #[doc = "\t request."] + pub fn gpiod_line_config_get_event_clock_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the default output value."] + #[doc = " @param config Line config object."] + #[doc = " @param value New value."] + #[doc = ""] + #[doc = " The default output value applies to all non-overridden output lines."] + #[doc = " It does not apply to input lines or overridden lines."] + pub fn gpiod_line_config_set_output_value_default( + config: *mut gpiod_line_config, + value: ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Override the output value for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to override the output value."] + #[doc = " @param value Output value to set."] + pub fn gpiod_line_config_set_output_value_override( + config: *mut gpiod_line_config, + value: ::std::os::raw::c_int, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Override the output values for multiple lines."] + #[doc = " @param config Line config object."] + #[doc = " @param num_values Number of lines for which to override values."] + #[doc = " @param offsets Array of offsets identifying the lines for which to override"] + #[doc = "\t\t values, containing \p num_values entries."] + #[doc = " @param values Array of output values corresponding to the lines identified in"] + #[doc = "\t\t \p offsets, also containing \p num_values entries."] + pub fn gpiod_line_config_set_output_values( + config: *mut gpiod_line_config, + num_values: size_t, + offsets: *const ::std::os::raw::c_uint, + values: *const ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Clear the output value override for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line for which to clear the override."] + #[doc = " @note Does nothing if no override is set for the line."] + pub fn gpiod_line_config_clear_output_value_override( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Check if the output value is overridden for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset The offset of the line to check for the override."] + #[doc = " @return True if output value is overridden for the line, false otherwise."] + pub fn gpiod_line_config_output_value_is_overridden( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> bool; +} +extern "C" { + #[doc = " @brief Get the default output value."] + #[doc = " @param config Line config object."] + #[doc = " @return Output value for any non-overridden line."] + pub fn gpiod_line_config_get_output_value_default( + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the configured output value for a line."] + #[doc = " @param config Line config object."] + #[doc = " @param offset Line offset for which to read the value."] + #[doc = " @return Output value for the line if the config object were used in a"] + #[doc = "\t request."] + pub fn gpiod_line_config_get_output_value_offset( + config: *mut gpiod_line_config, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +pub const GPIOD_LINE_CONFIG_PROP_DIRECTION: ::std::os::raw::c_uint = 1; +pub const GPIOD_LINE_CONFIG_PROP_EDGE_DETECTION: ::std::os::raw::c_uint = 2; +pub const GPIOD_LINE_CONFIG_PROP_BIAS: ::std::os::raw::c_uint = 3; +pub const GPIOD_LINE_CONFIG_PROP_DRIVE: ::std::os::raw::c_uint = 4; +pub const GPIOD_LINE_CONFIG_PROP_ACTIVE_LOW: ::std::os::raw::c_uint = 5; +pub const GPIOD_LINE_CONFIG_PROP_DEBOUNCE_PERIOD_US: ::std::os::raw::c_uint = 6; +#[doc = " Debounce period."] +pub const GPIOD_LINE_CONFIG_PROP_EVENT_CLOCK: ::std::os::raw::c_uint = 7; +pub const GPIOD_LINE_CONFIG_PROP_OUTPUT_VALUE: ::std::os::raw::c_uint = 8; +#[doc = " @brief List of properties that can be stored in a line_config object."] +#[doc = ""] +#[doc = " Used when retrieving the overrides."] +pub type _bindgen_ty_8 = ::std::os::raw::c_uint; +extern "C" { + #[doc = " @brief Get the total number of overridden settings stored in the line config"] + #[doc = "\t object."] + #[doc = " @param config Line config object."] + #[doc = " @return Number of individual overridden settings."] + pub fn gpiod_line_config_get_num_overrides(config: *mut gpiod_line_config) -> size_t; +} +extern "C" { + #[doc = " @brief Get the list of overridden offsets and the corresponding types of"] + #[doc = "\t overridden settings."] + #[doc = " @param config Line config object."] + #[doc = " @param offsets Array to store the overidden offsets. Must be sized to hold"] + #[doc = "\t\t the number of unsigned integers returned by"] + #[doc = "\t\t ::gpiod_line_config_get_num_overrides."] + #[doc = " @param props Array to store the types of overridden settings. Must be sized"] + #[doc = "\t\tto hold the number of integers returned by"] + #[doc = "\t\t::gpiod_line_config_get_num_overrides."] + #[doc = ""] + #[doc = " The overridden (offset, prop) pairs are stored in the \p offsets and"] + #[doc = " \p props arrays, with the pairs having the same index."] + pub fn gpiod_line_config_get_overrides( + config: *mut gpiod_line_config, + offsets: *mut ::std::os::raw::c_uint, + props: *mut ::std::os::raw::c_int, + ); +} +extern "C" { + #[doc = " @brief Create a new request config object."] + #[doc = " @return New request config object or NULL on error."] + pub fn gpiod_request_config_new() -> *mut gpiod_request_config; +} +extern "C" { + #[doc = " @brief Free the request config object and release all associated resources."] + #[doc = " @param config Line config object."] + pub fn gpiod_request_config_free(config: *mut gpiod_request_config); +} +extern "C" { + #[doc = " @brief Set the consumer name for the request."] + #[doc = " @param config Request config object."] + #[doc = " @param consumer Consumer name."] + #[doc = " @note If the consumer string is too long, it will be truncated to the max"] + #[doc = " accepted length."] + pub fn gpiod_request_config_set_consumer( + config: *mut gpiod_request_config, + consumer: *const ::std::os::raw::c_char, + ); +} +extern "C" { + #[doc = " @brief Get the consumer name configured in the request config."] + #[doc = " @param config Request config object."] + #[doc = " @return Consumer name stored in the request config."] + pub fn gpiod_request_config_get_consumer( + config: *mut gpiod_request_config, + ) -> *const ::std::os::raw::c_char; +} +extern "C" { + #[doc = " @brief Set the offsets of the lines to be requested."] + #[doc = " @param config Request config object."] + #[doc = " @param num_offsets Number of offsets to set."] + #[doc = " @param offsets Array of offsets, containing \p num_offsets entries."] + #[doc = " @note If too many offsets were specified, the offsets above the limit"] + #[doc = " accepted by the kernel (64 lines) are silently dropped."] + pub fn gpiod_request_config_set_offsets( + config: *mut gpiod_request_config, + num_offsets: size_t, + offsets: *const ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Get the number of offsets configured in this request config."] + #[doc = " @param config Request config object."] + #[doc = " @return Number of line offsets in this request config."] + pub fn gpiod_request_config_get_num_offsets(config: *mut gpiod_request_config) -> size_t; +} +extern "C" { + #[doc = " @brief Get the offsets of lines in the request config."] + #[doc = " @param config Request config object."] + #[doc = " @param offsets Array to store offsets. Must be sized to hold the number of"] + #[doc = "\t\t lines returned by ::gpiod_request_config_get_num_offsets."] + pub fn gpiod_request_config_get_offsets( + config: *mut gpiod_request_config, + offsets: *mut ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Set the size of the kernel event buffer for the request."] + #[doc = " @param config Request config object."] + #[doc = " @param event_buffer_size New event buffer size."] + #[doc = " @note The kernel may adjust the value if it's too high. If set to 0, the"] + #[doc = " default value will be used."] + #[doc = " @note The kernel buffer is distinct from and independent of the user space"] + #[doc = "\t buffer (::gpiod_edge_event_buffer_new)."] + pub fn gpiod_request_config_set_event_buffer_size( + config: *mut gpiod_request_config, + event_buffer_size: size_t, + ); +} +extern "C" { + #[doc = " @brief Get the edge event buffer size for the request config."] + #[doc = " @param config Request config object."] + #[doc = " @return Edge event buffer size setting from the request config."] + pub fn gpiod_request_config_get_event_buffer_size(config: *mut gpiod_request_config) -> size_t; +} +extern "C" { + #[doc = " @brief Release the requested lines and free all associated resources."] + #[doc = " @param request Line request object to release."] + pub fn gpiod_line_request_release(request: *mut gpiod_line_request); +} +extern "C" { + #[doc = " @brief Get the number of lines in the request."] + #[doc = " @param request Line request object."] + #[doc = " @return Number of requested lines."] + pub fn gpiod_line_request_get_num_lines(request: *mut gpiod_line_request) -> size_t; +} +extern "C" { + #[doc = " @brief Get the offsets of the lines in the request."] + #[doc = " @param request Line request object."] + #[doc = " @param offsets Array to store offsets. Must be sized to hold the number of"] + #[doc = "\t\t lines returned by ::gpiod_line_request_get_num_lines."] + pub fn gpiod_line_request_get_offsets( + request: *mut gpiod_line_request, + offsets: *mut ::std::os::raw::c_uint, + ); +} +extern "C" { + #[doc = " @brief Get the value of a single requested line."] + #[doc = " @param request Line request object."] + #[doc = " @param offset The offset of the line of which the value should be read."] + #[doc = " @return Returns 1 or 0 on success and -1 on error."] + pub fn gpiod_line_request_get_value( + request: *mut gpiod_line_request, + offset: ::std::os::raw::c_uint, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the values of a subset of requested lines."] + #[doc = " @param request GPIO line request."] + #[doc = " @param num_values Number of lines for which to read values."] + #[doc = " @param offsets Array of offsets identifying the subset of requested lines"] + #[doc = "\t\t from which to read values."] + #[doc = " @param values Array in which the values will be stored. Must be sized"] + #[doc = "\t\t to hold \p num_values entries. Each value is associated with the"] + #[doc = "\t\t line identified by the corresponding entry in \p offsets."] + #[doc = " @return 0 on success, -1 on failure."] + pub fn gpiod_line_request_get_values_subset( + request: *mut gpiod_line_request, + num_values: size_t, + offsets: *const ::std::os::raw::c_uint, + values: *mut ::std::os::raw::c_int, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the values of all requested lines."] + #[doc = " @param request GPIO line request."] + #[doc = " @param values Array in which the values will be stored. Must be sized to"] + #[doc = "\t\t hold the number of lines returned by"] + #[doc = "\t\t ::gpiod_line_request_get_num_lines."] + #[doc = "\t\t Each value is associated with the line identified by the"] + #[doc = "\t\t corresponding entry in the offset array returned by"] + #[doc = "\t\t ::gpiod_line_request_get_offsets."] + #[doc = " @return 0 on success, -1 on failure."] + pub fn gpiod_line_request_get_values( + request: *mut gpiod_line_request, + values: *mut ::std::os::raw::c_int, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the value of a single requested line."] + #[doc = " @param request Line request object."] + #[doc = " @param offset The offset of the line for which the value should be set."] + #[doc = " @param value Value to set."] + pub fn gpiod_line_request_set_value( + request: *mut gpiod_line_request, + offset: ::std::os::raw::c_uint, + value: ::std::os::raw::c_int, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the values of a subset of requested lines."] + #[doc = " @param request GPIO line request."] + #[doc = " @param num_values Number of lines for which to set values."] + #[doc = " @param offsets Array of offsets, containing the number of entries specified"] + #[doc = "\t\t by \p num_values, identifying the requested lines for"] + #[doc = "\t\t which to set values."] + #[doc = " @param values Array of values to set, containing the number of entries"] + #[doc = "\t\t specified by \p num_values. Each value is associated with the"] + #[doc = "\t\t line identified by the corresponding entry in \p offsets."] + #[doc = " @return 0 on success, -1 on failure."] + pub fn gpiod_line_request_set_values_subset( + request: *mut gpiod_line_request, + num_values: size_t, + offsets: *const ::std::os::raw::c_uint, + values: *const ::std::os::raw::c_int, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Set the values of all lines associated with a request."] + #[doc = " @param request GPIO line request."] + #[doc = " @param values Array containing the values to set. Must be sized to"] + #[doc = "\t\t contain the number of lines returned by"] + #[doc = "\t\t ::gpiod_line_request_get_num_lines."] + #[doc = "\t\t Each value is associated with the line identified by the"] + #[doc = "\t\t corresponding entry in the offset array returned by"] + #[doc = "\t\t ::gpiod_line_request_get_offsets."] + pub fn gpiod_line_request_set_values( + request: *mut gpiod_line_request, + values: *const ::std::os::raw::c_int, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Update the configuration of lines associated with a line request."] + #[doc = " @param request GPIO line request."] + #[doc = " @param config New line config to apply."] + #[doc = " @return 0 on success, -1 on failure."] + #[doc = " @note The new line configuration completely replaces the old."] + #[doc = " @note Any requested lines without overrides are configured to the requested"] + #[doc = "\t defaults."] + #[doc = " @note Any configured overrides for lines that have not been requested"] + #[doc = "\t are silently ignored."] + pub fn gpiod_line_request_reconfigure_lines( + request: *mut gpiod_line_request, + config: *mut gpiod_line_config, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the file descriptor associated with a line request."] + #[doc = " @param request GPIO line request."] + #[doc = " @return The file descriptor associated with the request."] + #[doc = "\t This function never fails."] + #[doc = "\t The returned file descriptor must not be closed by the caller."] + #[doc = "\t Call ::gpiod_line_request_release to close the file."] + pub fn gpiod_line_request_get_fd(request: *mut gpiod_line_request) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Wait for edge events on any of the requested lines."] + #[doc = " @param request GPIO line request."] + #[doc = " @param timeout_ns Wait time limit in nanoseconds. If set to 0, the function"] + #[doc = "\t\t returns immediatelly. If set to a negative number, the"] + #[doc = "\t\t function blocks indefinitely until an event becomes"] + #[doc = "\t\t available."] + #[doc = " @return 0 if wait timed out, -1 if an error occurred, 1 if an event is"] + #[doc = "\t pending."] + #[doc = "q"] + #[doc = " Lines must have edge detection set for edge events to be emitted."] + #[doc = " By default edge detection is disabled."] + pub fn gpiod_line_request_wait_edge_event( + request: *mut gpiod_line_request, + timeout_ns: i64, + ) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Read a number of edge events from a line request."] + #[doc = " @param request GPIO line request."] + #[doc = " @param buffer Edge event buffer, sized to hold at least \p max_events."] + #[doc = " @param max_events Maximum number of events to read."] + #[doc = " @return On success returns the number of events read from the file"] + #[doc = "\t descriptor, on failure return -1."] + #[doc = " @note This function will block if no event was queued for the line request."] + #[doc = " @note Any exising events in the buffer are overwritten. This is not an"] + #[doc = " append operation."] + pub fn gpiod_line_request_read_edge_event( + request: *mut gpiod_line_request, + buffer: *mut gpiod_edge_event_buffer, + max_events: size_t, + ) -> ::std::os::raw::c_int; +} +pub const GPIOD_EDGE_EVENT_RISING_EDGE: ::std::os::raw::c_uint = 1; +pub const GPIOD_EDGE_EVENT_FALLING_EDGE: ::std::os::raw::c_uint = 2; +#[doc = " @brief Event types."] +pub type _bindgen_ty_9 = ::std::os::raw::c_uint; +extern "C" { + #[doc = " @brief Free the edge event object."] + #[doc = " @param event Edge event object to free."] + pub fn gpiod_edge_event_free(event: *mut gpiod_edge_event); +} +extern "C" { + #[doc = " @brief Copy the edge event object."] + #[doc = " @param event Edge event to copy."] + #[doc = " @return Copy of the edge event or NULL on error. The returned object must"] + #[doc = "\t be freed by the caller using ::gpiod_edge_event_free."] + pub fn gpiod_edge_event_copy(event: *mut gpiod_edge_event) -> *mut gpiod_edge_event; +} +extern "C" { + #[doc = " @brief Get the event type."] + #[doc = " @param event GPIO edge event."] + #[doc = " @return The event type (::GPIOD_EDGE_EVENT_RISING_EDGE or"] + #[doc = "\t ::GPIOD_EDGE_EVENT_FALLING_EDGE)."] + pub fn gpiod_edge_event_get_event_type(event: *mut gpiod_edge_event) -> ::std::os::raw::c_int; +} +extern "C" { + #[doc = " @brief Get the timestamp of the event."] + #[doc = " @param event GPIO edge event."] + #[doc = " @return Timestamp in nanoseconds."] + #[doc = " @note The source clock for the timestamp depends on the event_clock"] + #[doc = "\t setting for the line."] + pub fn gpiod_edge_event_get_timestamp_ns(event: *mut gpiod_edge_event) -> u64; +} +extern "C" { + #[doc = " @brief Get the offset of the line which triggered the event."] + #[doc = " @param event GPIO edge event."] + #[doc = " @return Line offset."] + pub fn gpiod_edge_event_get_line_offset(event: *mut gpiod_edge_event) + -> ::std::os::raw::c_uint; +} +extern "C" { + #[doc = " @brief Get the global sequence number of the event."] + #[doc = " @param event GPIO edge event."] + #[doc = " @return Sequence number of the event in the series of events for all lines"] + #[doc = "\t in the associated line request."] + pub fn gpiod_edge_event_get_global_seqno( + event: *mut gpiod_edge_event, + ) -> ::std::os::raw::c_ulong; +} +extern "C" { + #[doc = " @brief Get the event sequence number specific to the line."] + #[doc = " @param event GPIO edge event."] + #[doc = " @return Sequence number of the event in the series of events only for this"] + #[doc = "\t line within the lifetime of the associated line request."] + pub fn gpiod_edge_event_get_line_seqno(event: *mut gpiod_edge_event) + -> ::std::os::raw::c_ulong; +} +extern "C" { + #[doc = " @brief Create a new edge event buffer."] + #[doc = " @param capacity Number of events the buffer can store (min = 1, max = 1024)."] + #[doc = " @return New edge event buffer or NULL on error."] + #[doc = " @note If capacity equals 0, it will be set to a default value of 64. If"] + #[doc = "\t capacity is larger than 1024, it will be limited to 1024."] + #[doc = " @note The user space buffer is independent of the kernel buffer"] + #[doc = "\t (::gpiod_request_config_set_event_buffer_size). As the user space"] + #[doc = "\t buffer is filled from the kernel buffer, there is no benefit making"] + #[doc = "\t the user space buffer larger than the kernel buffer."] + #[doc = "\t The default kernel buffer size for each request is 16*num_lines."] + pub fn gpiod_edge_event_buffer_new(capacity: size_t) -> *mut gpiod_edge_event_buffer; +} +extern "C" { + #[doc = " @brief Get the capacity (the max number of events that can be stored) of"] + #[doc = "\t the event buffer."] + #[doc = " @param buffer Edge event buffer."] + #[doc = " @return The capacity of the buffer."] + pub fn gpiod_edge_event_buffer_get_capacity(buffer: *mut gpiod_edge_event_buffer) -> size_t; +} +extern "C" { + #[doc = " @brief Free the edge event buffer and release all associated resources."] + #[doc = " @param buffer Edge event buffer to free."] + pub fn gpiod_edge_event_buffer_free(buffer: *mut gpiod_edge_event_buffer); +} +extern "C" { + #[doc = " @brief Get an event stored in the buffer."] + #[doc = " @param buffer Edge event buffer."] + #[doc = " @param index Index of the event in the buffer."] + #[doc = " @return Pointer to an event stored in the buffer. The lifetime of the"] + #[doc = "\t event is tied to the buffer object. Users must not free the event"] + #[doc = "\t returned by this function."] + pub fn gpiod_edge_event_buffer_get_event( + buffer: *mut gpiod_edge_event_buffer, + index: ::std::os::raw::c_ulong, + ) -> *mut gpiod_edge_event; +} +extern "C" { + #[doc = " @brief Get the number of events a buffer has stored."] + #[doc = " @param buffer Edge event buffer."] + #[doc = " @return Number of events stored in the buffer."] + pub fn gpiod_edge_event_buffer_get_num_events(buffer: *mut gpiod_edge_event_buffer) -> size_t; +} +extern "C" { + #[doc = " @brief Check if the file pointed to by path is a GPIO chip character device."] + #[doc = " @param path Path to check."] + #[doc = " @return True if the file exists and is either a GPIO chip character device"] + #[doc = "\t or a symbolic link to one."] + pub fn gpiod_is_gpiochip_device(path: *const ::std::os::raw::c_char) -> bool; +} +extern "C" { + #[doc = " @brief Get the API version of the library as a human-readable string."] + #[doc = " @return Human-readable string containing the library version."] + pub fn gpiod_version_string() -> *const ::std::os::raw::c_char; +} +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct __locale_data { + pub _address: u8, +}

Add support to generate gpiosim bindings.

Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- bindings/rust/libgpiod-sys/Cargo.toml | 1 + bindings/rust/libgpiod-sys/build.rs | 19 +++++++++++++++++-- bindings/rust/libgpiod-sys/gpiosim_wrapper.h | 1 + 3 files changed, 19 insertions(+), 2 deletions(-) create mode 100644 bindings/rust/libgpiod-sys/gpiosim_wrapper.h

diff --git a/bindings/rust/libgpiod-sys/Cargo.toml b/bindings/rust/libgpiod-sys/Cargo.toml index 77f82719d269..73b6761d16dd 100644 --- a/bindings/rust/libgpiod-sys/Cargo.toml +++ b/bindings/rust/libgpiod-sys/Cargo.toml @@ -9,6 +9,7 @@ edition = "2018"

[features] generate = [ "bindgen" ] +gpiosim = [ "generate", "bindgen" ]

[build-dependencies] bindgen = { version = "0.59.1", optional = true } diff --git a/bindings/rust/libgpiod-sys/build.rs b/bindings/rust/libgpiod-sys/build.rs index bbcd30f79d23..147daaf6b1da 100644 --- a/bindings/rust/libgpiod-sys/build.rs +++ b/bindings/rust/libgpiod-sys/build.rs @@ -14,13 +14,25 @@ fn generate_bindings(files: &Vec<&str>) { println!("cargo:rerun-if-changed={}", file); }

+ if cfg!(feature = "gpiosim") { + println!("cargo:rerun-if-changed=gpiosim_wrapper.h"); + } + // The bindgen::Builder is the main entry point // to bindgen, and lets you build up options for // the resulting bindings. - let bindings = bindgen::Builder::default() + let mut builder = bindgen::Builder::default() // The input header we would like to generate // bindings for. - .header("wrapper.h") + .header("wrapper.h"); + + if cfg!(feature = "gpiosim") { + builder = builder.header("gpiosim_wrapper.h"); + println!("cargo:rustc-link-lib=kmod"); + println!("cargo:rustc-link-lib=mount"); + } + + let bindings = builder // Tell cargo to invalidate the built crate whenever any of the // included header files changed. .parse_callbacks(Box::new(bindgen::CargoCallbacks)) @@ -46,6 +58,7 @@ fn build_gpiod(files: Vec<&str>) { .define("_GNU_SOURCE", None) .define("GPIOD_VERSION_STR", ""libgpio-sys"") .include("../../../include") + .include("/usr/include/libmount") .compile("gpiod"); }

@@ -61,6 +74,8 @@ fn main() { "../../../lib/line-request.c", "../../../lib/misc.c", "../../../lib/request-config.c", + #[cfg(feature = "gpiosim")] + "../../../tests/gpiosim/gpiosim.c", ];

#[cfg(feature = "generate")] diff --git a/bindings/rust/libgpiod-sys/gpiosim_wrapper.h b/bindings/rust/libgpiod-sys/gpiosim_wrapper.h new file mode 100644 index 000000000000..47dc12a87917 --- /dev/null +++ b/bindings/rust/libgpiod-sys/gpiosim_wrapper.h @@ -0,0 +1 @@ +#include "../../../tests/gpiosim/gpiosim.h"

Add examples for the usage of the rust bindings, quite similar to the ones in cxx bindings.

Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- bindings/rust/examples/gpiodetect.rs | 37 ++++++++++++ bindings/rust/examples/gpiofind.rs | 42 +++++++++++++ bindings/rust/examples/gpioget.rs | 42 +++++++++++++ bindings/rust/examples/gpioinfo.rs | 89 ++++++++++++++++++++++++++++ bindings/rust/examples/gpiomon.rs | 68 +++++++++++++++++++++ bindings/rust/examples/gpioset.rs | 52 ++++++++++++++++ 6 files changed, 330 insertions(+) create mode 100644 bindings/rust/examples/gpiodetect.rs create mode 100644 bindings/rust/examples/gpiofind.rs create mode 100644 bindings/rust/examples/gpioget.rs create mode 100644 bindings/rust/examples/gpioinfo.rs create mode 100644 bindings/rust/examples/gpiomon.rs create mode 100644 bindings/rust/examples/gpioset.rs

diff --git a/bindings/rust/examples/gpiodetect.rs b/bindings/rust/examples/gpiodetect.rs new file mode 100644 index 000000000000..82307e4eecea --- /dev/null +++ b/bindings/rust/examples/gpiodetect.rs @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of gpiodetect tool. + +use std::env; +use std::fs; +use std::path::Path; + +use libgpiod::{gpiod_is_gpiochip_device, Chip}; + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() > 1 { + println!("Usage: {}", args[0]); + return; + } + + for entry in fs::read_dir(Path::new("/dev")).unwrap() { + let pathbuf = entry.unwrap().path(); + let path = pathbuf.to_str().unwrap(); + + if gpiod_is_gpiochip_device(path) { + let chip = Chip::open(path).unwrap(); + let ngpio = chip.get_num_lines(); + + println!( + "{} [{}] ({})", + chip.get_name().unwrap(), + chip.get_label().unwrap(), + ngpio + ); + } + } +} diff --git a/bindings/rust/examples/gpiofind.rs b/bindings/rust/examples/gpiofind.rs new file mode 100644 index 000000000000..bbbd7a87ece8 --- /dev/null +++ b/bindings/rust/examples/gpiofind.rs @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of gpiofind tool. + +use std::env; +use std::fs; +use std::path::Path; + +use libgpiod::{gpiod_is_gpiochip_device, Chip}; + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() != 2 { + println!("Usage: {} <line-name>", args[0]); + return; + } + + for entry in fs::read_dir(Path::new("/dev")).unwrap() { + let pathbuf = entry.unwrap().path(); + let path = pathbuf.to_str().unwrap(); + + if gpiod_is_gpiochip_device(path) { + let chip = Chip::open(path).unwrap(); + + let offset = chip.find_line(&args[1]); + if offset.is_ok() { + println!( + "Line {} found: Chip: {}, offset: {}", + args[1], + chip.get_name().unwrap(), + offset.unwrap() + ); + return; + } + } + } + + println!("Failed to find line: {}", args[1]); +} diff --git a/bindings/rust/examples/gpioget.rs b/bindings/rust/examples/gpioget.rs new file mode 100644 index 000000000000..c3bc35fcfdb6 --- /dev/null +++ b/bindings/rust/examples/gpioget.rs @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of gpioget tool. + +use std::env; + +use libgpiod::{Chip, Direction, LineConfig, RequestConfig}; + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() < 3 { + println!("Usage: {} <chip> <line_offset0> ...", args[0]); + return; + } + + let mut config = LineConfig::new().unwrap(); + let mut offsets = Vec::<u32>::new(); + + for arg in &args[2..] { + let offset = arg.parse::<u32>().unwrap(); + + offsets.push(offset); + config.set_direction_override(Direction::Input, offset); + } + + let path = format!("/dev/gpiochip{}", args[1]); + let chip = Chip::open(&path).unwrap(); + + let rconfig = RequestConfig::new().unwrap(); + rconfig.set_consumer(&args[0]); + rconfig.set_offsets(&offsets); + + let request = chip.request_lines(&rconfig, &config).unwrap(); + + let mut values: Vec<i32> = vec![0; offsets.len()]; + request.get_values(&mut values).unwrap(); + + println!("{:?}", values); +} diff --git a/bindings/rust/examples/gpioinfo.rs b/bindings/rust/examples/gpioinfo.rs new file mode 100644 index 000000000000..bd30d9096ce8 --- /dev/null +++ b/bindings/rust/examples/gpioinfo.rs @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of gpioinfo tool. + +use std::env; +use std::fs; +use std::path::Path; + +use libgpiod::{gpiod_is_gpiochip_device, Chip, Direction}; + +fn line_info(chip: &Chip, offset: u32) { + let info = chip.line_info(offset).unwrap(); + let off = info.get_offset(); + + let name = match info.get_name() { + Ok(name) => name, + _ => "unused", + }; + + let consumer = match info.get_consumer() { + Ok(name) => name, + _ => "unnamed", + }; + + let low = if info.is_active_low() { + "active-low" + } else { + "active-high" + }; + + let dir = match info.get_direction().unwrap() { + Direction::AsIs => "None", + Direction::Input => "Input", + Direction::Output => "Output", + }; + + println!( + "\tline {:>3}\ + \t{:>10}\ + \t{:>10}\ + \t{:>6}\ + \t{:>14}", + off, name, consumer, dir, low + ); +} + +fn chip_info(path: &str) { + if gpiod_is_gpiochip_device(path) { + let chip = Chip::open(path).unwrap(); + let ngpio = chip.get_num_lines(); + + println!("GPIO Chip name: {}", chip.get_name().unwrap()); + println!("\tlabel: {}", chip.get_label().unwrap()); + println!("\tpath: {}", chip.get_path().unwrap()); + println!("\tngpio: {}\n", ngpio); + + println!("\tLine information:"); + + for offset in 0..ngpio { + line_info(&chip, offset); + } + println!("\n"); + } +} + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() > 2 { + println!("Usage: {}", args[0]); + return; + } + + if args.len() == 1 { + for entry in fs::read_dir(Path::new("/dev")).unwrap() { + let pathbuf = entry.unwrap().path(); + let path = pathbuf.to_str().unwrap(); + + chip_info(path); + } + } else { + let index = args[1].parse::<u32>().unwrap(); + let path = format!("/dev/gpiochip{}", index); + + chip_info(&path); + } +} diff --git a/bindings/rust/examples/gpiomon.rs b/bindings/rust/examples/gpiomon.rs new file mode 100644 index 000000000000..872907b386f3 --- /dev/null +++ b/bindings/rust/examples/gpiomon.rs @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of the gpiomon tool. + +use std::env; +use std::time::Duration; + +use libgpiod::{Chip, Edge, EdgeEventBuffer, Error, LineConfig, LineEdgeEvent, RequestConfig}; + +fn usage(name: &str) { + println!("Usage: {} <chip> <offset0> ...", name); +} + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() < 3 { + usage(&args[0]); + return; + } + + let mut config = LineConfig::new().unwrap(); + let mut offsets = Vec::<u32>::new(); + + for arg in &args[2..] { + let offset = arg.parse::<u32>().unwrap(); + + offsets.push(offset); + } + + config.set_edge_detection_default(Edge::Both); + + let path = format!("/dev/gpiochip{}", args[1]); + let chip = Chip::open(&path).unwrap(); + + let rconfig = RequestConfig::new().unwrap(); + rconfig.set_offsets(&offsets); + + let buffer = EdgeEventBuffer::new(1).unwrap(); + let request = chip.request_lines(&rconfig, &config).unwrap(); + + loop { + match request.wait_edge_event(Duration::new(1, 0)) { + Err(Error::OperationTimedOut) => continue, + Err(x) => { + println!("{:?}", x); + return; + } + Ok(()) => (), + } + + let count = request.read_edge_event(&buffer, 1).unwrap(); + if count == 1 { + let event = buffer.get_event(0).unwrap(); + println!( + "line: {} type: {}, time: {:?}", + event.get_line_offset(), + match event.get_event_type().unwrap() { + LineEdgeEvent::Rising => "Rising", + LineEdgeEvent::Falling => "Falling", + }, + event.get_timestamp() + ); + } + } +} diff --git a/bindings/rust/examples/gpioset.rs b/bindings/rust/examples/gpioset.rs new file mode 100644 index 000000000000..ef70e8edbaae --- /dev/null +++ b/bindings/rust/examples/gpioset.rs @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org +// +// Simplified Rust implementation of the gpioset tool. + +use std::env; + +use libgpiod::{Chip, Direction, LineConfig, RequestConfig}; + +fn usage(name: &str) { + println!("Usage: {} <chip> <line_offset0>=<value0> ...", name); +} + +fn main() { + let args: Vec<String> = env::args().collect(); + if args.len() < 3 { + usage(&args[0]); + return; + } + + let mut config = LineConfig::new().unwrap(); + let mut offsets = Vec::<u32>::new(); + let mut values = Vec::<i32>::new(); + + for arg in &args[2..] { + let pair: Vec<&str> = arg.split('=').collect(); + if pair.len() != 2 { + usage(&args[0]); + return; + } + + let offset = pair[0].parse::<u32>().unwrap(); + let value = pair[1].parse::<u32>().unwrap(); + + offsets.push(offset); + values.push(value as i32); + } + + config.set_direction_default(Direction::Output); + config.set_output_values(&offsets, &values).unwrap(); + + let path = format!("/dev/gpiochip{}", args[1]); + let chip = Chip::open(&path).unwrap(); + + let rconfig = RequestConfig::new().unwrap(); + rconfig.set_consumer(&args[0]); + rconfig.set_offsets(&offsets); + + chip.request_lines(&rconfig, &config).unwrap(); +}

Add tests for the rust bindings, quite similar to the ones in cxx bindings.

This is how "cargo test" prints results:

Running tests/chip.rs (target/debug/deps/chip-b19008e6b9a10d2f)

running 6 tests test chip::create::nonexistent_file_failure ... ok test chip::create::no_dev_file_failure ... ok test chip::create::non_gpio_char_dev_file_failure ... ok test chip::create::existing ... ok test chip::configure::line_lookup ... ok test chip::configure::verify ... ok

test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s

Running tests/edge_event.rs (target/debug/deps/edge_event-5897a36c91efe0d4)

running 11 tests test edge_event::buffer_settings::default_capacity ... ok test edge_event::buffer_settings::user_defined_capacity ... ok test edge_event::buffer_settings::max_capacity ... ok test edge_event::failure::dir_out_edge_failure ... ok test edge_event::failure::wait_timeout ... ok test edge_event::verify::both_edges ... ok test edge_event::verify::multiple_events ... ok test edge_event::verify::edge_sequence ... ok test edge_event::verify::falling_edge ... ok test edge_event::verify::over_capacity ... ok test edge_event::verify::rising_edge ... ok

test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.98s

Running tests/info_event.rs (target/debug/deps/info_event-707c734e0820381c)

running 3 tests test info_event::watch::verify ... ok test info_event::watch::failure ... ok test info_event::watch::reconfigure ... ok

test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s

Running tests/line_config.rs (target/debug/deps/line_config-d376966750bf38a0)

running 9 tests test line_config::overrides::active_low ... ok test line_config::overrides::bias ... ok test line_config::default::verify ... ok test line_config::overrides::debounce_period ... ok test line_config::overrides::direction ... ok test line_config::overrides::drive ... ok test line_config::overrides::edge_detection ... ok test line_config::overrides::event_clock ... ok test line_config::overrides::output_value ... ok

test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s

Running tests/line_info.rs (target/debug/deps/line_info-5069196cfaa74ab7)

running 2 tests [40570.967204] gpio-1992 (hog): hogged as output/high [40570.974774] gpio-1956 (hog4): hogged as output/low [40570.975314] gpio-1955 (hog3): hogged as output/high test line_info::properties::verify ... ok test line_info::basic::verify ... ok

test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s

Running tests/line_request.rs (target/debug/deps/line_request-914b9fd8c84e2c4b)

running 7 tests test line_request::invalid_arguments::no_offsets ... ok test line_request::verify::read_values ... ok test line_request::verify::set_bias ... ok test line_request::verify::reconfigure_output_values ... ok test line_request::verify::empty_consumer ... ok test line_request::verify::set_output_values ... ok test line_request::verify::custom_consumer ... ok

test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s

Running tests/request_config.rs (target/debug/deps/request_config-99e366517cc0feda)

running 2 tests test request_config::verify::default ... ok test request_config::verify::initialized ... ok

test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s

Doc-tests libgpiod

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- bindings/rust/Cargo.toml | 3 + bindings/rust/src/line_request.rs | 1 + bindings/rust/tests/chip.rs | 96 +++++++ bindings/rust/tests/common/config.rs | 117 ++++++++ bindings/rust/tests/common/mod.rs | 16 ++ bindings/rust/tests/common/sim.rs | 306 ++++++++++++++++++++ bindings/rust/tests/edge_event.rs | 389 ++++++++++++++++++++++++++ bindings/rust/tests/info_event.rs | 126 +++++++++ bindings/rust/tests/line_config.rs | 187 +++++++++++++ bindings/rust/tests/line_info.rs | 90 ++++++ bindings/rust/tests/line_request.rs | 234 ++++++++++++++++ bindings/rust/tests/request_config.rs | 42 +++ 12 files changed, 1607 insertions(+) create mode 100644 bindings/rust/tests/chip.rs create mode 100644 bindings/rust/tests/common/config.rs create mode 100644 bindings/rust/tests/common/mod.rs create mode 100644 bindings/rust/tests/common/sim.rs create mode 100644 bindings/rust/tests/edge_event.rs create mode 100644 bindings/rust/tests/info_event.rs create mode 100644 bindings/rust/tests/line_config.rs create mode 100644 bindings/rust/tests/line_info.rs create mode 100644 bindings/rust/tests/line_request.rs create mode 100644 bindings/rust/tests/request_config.rs

diff --git a/bindings/rust/Cargo.toml b/bindings/rust/Cargo.toml index d5d81486fa2f..e2d6d5bb91b6 100644 --- a/bindings/rust/Cargo.toml +++ b/bindings/rust/Cargo.toml @@ -10,3 +10,6 @@ libc = ">=0.2.39" libgpiod-sys = { path = "libgpiod-sys" } thiserror = "1.0" vmm-sys-util = "=0.9.0" + +[dev-dependencies] +libgpiod-sys = { path = "libgpiod-sys", features = ["gpiosim"] } diff --git a/bindings/rust/src/line_request.rs b/bindings/rust/src/line_request.rs index bb338e72671d..c1dbbb397e73 100644 --- a/bindings/rust/src/line_request.rs +++ b/bindings/rust/src/line_request.rs @@ -15,6 +15,7 @@ use super::{bindings, ChipInternal, EdgeEventBuffer, Error, LineConfig, RequestC /// Line request operations /// /// Allows interaction with a set of requested lines. +#[derive(Debug)] pub struct LineRequest { request: *mut bindings::gpiod_line_request, } diff --git a/bindings/rust/tests/chip.rs b/bindings/rust/tests/chip.rs new file mode 100644 index 000000000000..4e64e9c7e291 --- /dev/null +++ b/bindings/rust/tests/chip.rs @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod chip { + use libc::{ENODEV, ENOENT, ENOTTY}; + + use vmm_sys_util::errno::Error as IoError; + + use crate::common::*; + use libgpiod::{Chip, Error as ChipError}; + + mod create { + use super::*; + + #[test] + fn nonexistent_file_failure() { + assert_eq!( + Chip::open("/dev/nonexistent").unwrap_err(), + ChipError::OperationFailed("Gpio Chip open", IoError::new(ENOENT)) + ); + } + + #[test] + fn no_dev_file_failure() { + assert_eq!( + Chip::open("/tmp").unwrap_err(), + ChipError::OperationFailed("Gpio Chip open", IoError::new(ENOTTY)) + ); + } + + #[test] + fn non_gpio_char_dev_file_failure() { + assert_eq!( + Chip::open("/dev/null").unwrap_err(), + ChipError::OperationFailed("Gpio Chip open", IoError::new(ENODEV)) + ); + } + + #[test] + fn existing() { + let sim = Sim::new(None, None, true).unwrap(); + Chip::open(sim.dev_path()).unwrap(); + } + } + + mod configure { + use super::*; + const NGPIO: u64 = 16; + const LABEL: &str = "foobar"; + + #[test] + fn verify() { + let sim = Sim::new(Some(NGPIO), Some(LABEL), true).unwrap(); + let chip = Chip::open(sim.dev_path()).unwrap(); + + assert_eq!(chip.get_label().unwrap(), LABEL); + assert_eq!(chip.get_name().unwrap(), sim.chip_name()); + assert_eq!(chip.get_path().unwrap(), sim.dev_path()); + assert_eq!(chip.get_num_lines(), NGPIO as u32); + chip.get_fd().unwrap(); + } + + #[test] + fn line_lookup() { + let sim = Sim::new(Some(NGPIO), None, false).unwrap(); + sim.set_line_name(0, "zero").unwrap(); + sim.set_line_name(2, "two").unwrap(); + sim.set_line_name(3, "three").unwrap(); + sim.set_line_name(5, "five").unwrap(); + sim.set_line_name(10, "ten").unwrap(); + sim.set_line_name(11, "ten").unwrap(); + sim.enable().unwrap(); + + let chip = Chip::open(sim.dev_path()).unwrap(); + + // Success case + assert_eq!(chip.find_line("zero").unwrap(), 0); + assert_eq!(chip.find_line("two").unwrap(), 2); + assert_eq!(chip.find_line("three").unwrap(), 3); + assert_eq!(chip.find_line("five").unwrap(), 5); + + // Success with duplicate names, should return first entry + assert_eq!(chip.find_line("ten").unwrap(), 10); + + // Failure + assert_eq!( + chip.find_line("nonexistent").unwrap_err(), + ChipError::OperationFailed("Gpio Chip find-line", IoError::new(ENOENT)) + ); + } + } +} diff --git a/bindings/rust/tests/common/config.rs b/bindings/rust/tests/common/config.rs new file mode 100644 index 000000000000..3abd9a8c4c8b --- /dev/null +++ b/bindings/rust/tests/common/config.rs @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +use std::sync::Arc; + +use crate::common::*; + +use libgpiod::{Bias, Chip, Direction, Edge, LineConfig, LineRequest, RequestConfig, Result}; + +//#[derive(Debug)] +pub(crate) struct TestConfig { + sim: Arc<Sim>, + chip: Option<Chip>, + request: Option<LineRequest>, + rconfig: RequestConfig, + lconfig: LineConfig, +} + +impl TestConfig { + pub(crate) fn new(ngpio: u64) -> Result<Self> { + Ok(Self { + sim: Arc::new(Sim::new(Some(ngpio), None, true)?), + chip: None, + request: None, + rconfig: RequestConfig::new().unwrap(), + lconfig: LineConfig::new().unwrap(), + }) + } + + pub(crate) fn set_pull(&self, offsets: &[u32], pulls: &[u32]) { + for i in 0..pulls.len() { + self.sim.set_pull(offsets[i], pulls[i] as i32).unwrap(); + } + } + + pub(crate) fn rconfig_consumer(&self, offsets: Option<&[u32]>, consumer: Option<&str>) { + if let Some(offsets) = offsets { + self.rconfig.set_offsets(offsets); + } + + if let Some(consumer) = consumer { + self.rconfig.set_consumer(consumer); + } + } + + pub(crate) fn rconfig(&self, offsets: Option<&[u32]>) { + self.rconfig_consumer(offsets, None); + } + + pub(crate) fn lconfig( + &mut self, + dir: Option<Direction>, + val: Option<u32>, + val_override: Option<(u32, u32)>, + edge: Option<Edge>, + bias: Option<Bias>, + ) { + if let Some(bias) = bias { + self.lconfig.set_bias_default(bias); + } + + if let Some(edge) = edge { + self.lconfig.set_edge_detection_default(edge); + } + + if let Some(dir) = dir { + self.lconfig.set_direction_default(dir); + } + + if let Some(val) = val { + self.lconfig.set_output_value_default(val); + } + + if let Some((offset, val)) = val_override { + self.lconfig.set_output_value_override(val, offset); + } + } + + pub(crate) fn lconfig_raw(&mut self) { + self.lconfig(None, None, None, None, None); + } + + pub(crate) fn lconfig_edge(&mut self, edge: Option<Edge>) { + self.lconfig(None, None, None, edge, None); + } + + pub(crate) fn request_lines(&mut self) -> Result<()> { + let chip = Chip::open(self.sim.dev_path())?; + + self.request = Some(chip.request_lines(&self.rconfig, &self.lconfig)?); + self.chip = Some(chip); + + Ok(()) + } + + pub(crate) fn sim(&self) -> Arc<Sim> { + self.sim.clone() + } + + pub(crate) fn chip(&self) -> &Chip { + &self.chip.as_ref().unwrap() + } + + pub(crate) fn request(&self) -> &LineRequest { + &self.request.as_ref().unwrap() + } +} + +impl Drop for TestConfig { + fn drop(&mut self) { + // Explicit freeing is important to make sure "request" get freed + // before "sim" and "chip". + self.request = None; + } +} diff --git a/bindings/rust/tests/common/mod.rs b/bindings/rust/tests/common/mod.rs new file mode 100644 index 000000000000..2dc37986396b --- /dev/null +++ b/bindings/rust/tests/common/mod.rs @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +#[allow(dead_code)] +mod sim; + +#[allow(unused_imports)] +pub(crate) use sim::*; + +#[allow(dead_code)] +mod config; + +#[allow(unused_imports)] +pub(crate) use config::*; diff --git a/bindings/rust/tests/common/sim.rs b/bindings/rust/tests/common/sim.rs new file mode 100644 index 000000000000..cd5ec66c3da5 --- /dev/null +++ b/bindings/rust/tests/common/sim.rs @@ -0,0 +1,306 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +use std::os::raw::c_char; +use std::{slice, str}; + +use vmm_sys_util::errno::Error as IoError; + +use libgpiod::{Error, Result}; +use libgpiod_sys as bindings; + +/// Sim Ctx +#[derive(Debug)] +struct SimCtx { + ctx: *mut bindings::gpiosim_ctx, +} + +unsafe impl Send for SimCtx {} +unsafe impl Sync for SimCtx {} + +impl SimCtx { + fn new() -> Result<Self> { + let ctx = unsafe { bindings::gpiosim_ctx_new() }; + if ctx.is_null() { + return Err(Error::OperationFailed("gpio-sim ctx new", IoError::last())); + } + + Ok(Self { ctx }) + } + + fn ctx(&self) -> *mut bindings::gpiosim_ctx { + self.ctx + } +} + +impl Drop for SimCtx { + fn drop(&mut self) { + unsafe { bindings::gpiosim_ctx_unref(self.ctx) } + } +} + +/// Sim Dev +#[derive(Debug)] +struct SimDev { + dev: *mut bindings::gpiosim_dev, +} + +unsafe impl Send for SimDev {} +unsafe impl Sync for SimDev {} + +impl SimDev { + fn new(ctx: &SimCtx) -> Result<Self> { + let dev = unsafe { bindings::gpiosim_dev_new(ctx.ctx()) }; + if dev.is_null() { + return Err(Error::OperationFailed("gpio-sim dev new", IoError::last())); + } + + Ok(Self { dev }) + } + + fn dev(&self) -> *mut bindings::gpiosim_dev { + self.dev + } + + fn enable(&self) -> Result<()> { + let ret = unsafe { bindings::gpiosim_dev_enable(self.dev) }; + + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim dev-enable", + IoError::last(), + )) + } else { + Ok(()) + } + } + + fn disable(&self) -> Result<()> { + let ret = unsafe { bindings::gpiosim_dev_disable(self.dev) }; + + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim dev-disable", + IoError::last(), + )) + } else { + Ok(()) + } + } +} + +impl Drop for SimDev { + fn drop(&mut self) { + unsafe { bindings::gpiosim_dev_unref(self.dev) } + } +} + +/// Sim Bank +#[derive(Debug)] +struct SimBank { + bank: *mut bindings::gpiosim_bank, +} + +unsafe impl Send for SimBank {} +unsafe impl Sync for SimBank {} + +impl SimBank { + fn new(dev: &SimDev) -> Result<Self> { + let bank = unsafe { bindings::gpiosim_bank_new(dev.dev()) }; + if bank.is_null() { + return Err(Error::OperationFailed("gpio-sim Bank new", IoError::last())); + } + + Ok(Self { bank }) + } + + fn chip_name(&self) -> Result<&str> { + // SAFETY: The string returned by gpiosim is guaranteed to live as long + // as the `struct SimBank`. + let name = unsafe { bindings::gpiosim_bank_get_chip_name(self.bank) }; + + // SAFETY: The string is guaranteed to be valid here. + str::from_utf8(unsafe { + slice::from_raw_parts(name as *const u8, bindings::strlen(name) as usize) + }) + .map_err(Error::InvalidString) + } + + fn dev_path(&self) -> Result<&str> { + // SAFETY: The string returned by gpiosim is guaranteed to live as long + // as the `struct SimBank`. + let path = unsafe { bindings::gpiosim_bank_get_dev_path(self.bank) }; + + // SAFETY: The string is guaranteed to be valid here. + str::from_utf8(unsafe { + slice::from_raw_parts(path as *const u8, bindings::strlen(path) as usize) + }) + .map_err(Error::InvalidString) + } + + fn val(&self, offset: u32) -> Result<u32> { + let ret = unsafe { bindings::gpiosim_bank_get_value(self.bank, offset) }; + + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim get-value", + IoError::last(), + )) + } else { + Ok(ret as u32) + } + } + + fn set_label(&self, label: &str) -> Result<()> { + // Null-terminate the string + let label = label.to_owned() + "\0"; + + let ret = + unsafe { bindings::gpiosim_bank_set_label(self.bank, label.as_ptr() as *const c_char) }; + + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim set-label", + IoError::last(), + )) + } else { + Ok(()) + } + } + + fn set_num_lines(&self, num: u64) -> Result<()> { + let ret = unsafe { bindings::gpiosim_bank_set_num_lines(self.bank, num) }; + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim set-num-lines", + IoError::last(), + )) + } else { + Ok(()) + } + } + + fn set_line_name(&self, offset: u32, name: &str) -> Result<()> { + // Null-terminate the string + let name = name.to_owned() + "\0"; + + let ret = unsafe { + bindings::gpiosim_bank_set_line_name(self.bank, offset, name.as_ptr() as *const c_char) + }; + + if ret == -1 { + Err(Error::OperationFailed( + "gpio-sim set-line-name", + IoError::last(), + )) + } else { + Ok(()) + } + } + + fn set_pull(&self, offset: u32, pull: i32) -> Result<()> { + let ret = unsafe { bindings::gpiosim_bank_set_pull(self.bank, offset, pull) }; + + if ret == -1 { + Err(Error::OperationFailed("gpio-sim set-pull", IoError::last())) + } else { + Ok(()) + } + } + + fn hog_line(&self, offset: u32, name: &str, dir: i32) -> Result<()> { + // Null-terminate the string + let name = name.to_owned() + "\0"; + + let ret = unsafe { + bindings::gpiosim_bank_hog_line(self.bank, offset, name.as_ptr() as *const c_char, dir) + }; + + if ret == -1 { + Err(Error::OperationFailed("gpio-sim hog-line", IoError::last())) + } else { + Ok(()) + } + } +} + +impl Drop for SimBank { + fn drop(&mut self) { + unsafe { bindings::gpiosim_bank_unref(self.bank) } + } +} + +/// GPIO SIM +#[derive(Debug)] +pub(crate) struct Sim { + ctx: SimCtx, + dev: SimDev, + bank: SimBank, +} + +unsafe impl Send for Sim {} +unsafe impl Sync for Sim {} + +impl Sim { + pub(crate) fn new(ngpio: Option<u64>, label: Option<&str>, enable: bool) -> Result<Self> { + let ctx = SimCtx::new()?; + let dev = SimDev::new(&ctx)?; + let bank = SimBank::new(&dev)?; + + if let Some(ngpio) = ngpio { + bank.set_num_lines(ngpio)?; + } + + if let Some(label) = label { + bank.set_label(label)?; + } + + if enable { + dev.enable()?; + } + + Ok(Self { ctx, dev, bank }) + } + + pub(crate) fn chip_name(&self) -> &str { + self.bank.chip_name().unwrap() + } + + pub fn dev_path(&self) -> &str { + self.bank.dev_path().unwrap() + } + + pub(crate) fn val(&self, offset: u32) -> Result<u32> { + self.bank.val(offset) + } + + pub(crate) fn set_label(&self, label: &str) -> Result<()> { + self.bank.set_label(label) + } + + pub(crate) fn set_num_lines(&self, num: u64) -> Result<()> { + self.bank.set_num_lines(num) + } + + pub(crate) fn set_line_name(&self, offset: u32, name: &str) -> Result<()> { + self.bank.set_line_name(offset, name) + } + + pub(crate) fn set_pull(&self, offset: u32, pull: i32) -> Result<()> { + self.bank.set_pull(offset, pull) + } + + pub(crate) fn hog_line(&self, offset: u32, name: &str, dir: i32) -> Result<()> { + self.bank.hog_line(offset, name, dir) + } + + pub(crate) fn enable(&self) -> Result<()> { + self.dev.enable() + } + + pub(crate) fn disable(&self) -> Result<()> { + self.dev.disable() + } +} diff --git a/bindings/rust/tests/edge_event.rs b/bindings/rust/tests/edge_event.rs new file mode 100644 index 000000000000..1b05b225aab7 --- /dev/null +++ b/bindings/rust/tests/edge_event.rs @@ -0,0 +1,389 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod edge_event { + use libc::EINVAL; + use std::sync::Arc; + use std::thread::{sleep, spawn}; + use std::time::Duration; + + use vmm_sys_util::errno::Error as IoError; + + use crate::common::*; + use libgpiod::{Direction, Edge, EdgeEventBuffer, Error as ChipError, LineEdgeEvent}; + use libgpiod_sys::{GPIOSIM_PULL_DOWN, GPIOSIM_PULL_UP}; + + const NGPIO: u64 = 8; + + mod buffer_settings { + use super::*; + + #[test] + fn default_capacity() { + assert_eq!(EdgeEventBuffer::new(0).unwrap().get_capacity(), 64); + } + + #[test] + fn user_defined_capacity() { + assert_eq!(EdgeEventBuffer::new(123).unwrap().get_capacity(), 123); + } + + #[test] + fn max_capacity() { + assert_eq!(EdgeEventBuffer::new(1024 * 2).unwrap().get_capacity(), 1024); + } + } + + mod failure { + use super::*; + + #[test] + fn wait_timeout() { + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[0])); + config.lconfig_edge(Some(Edge::Both)); + config.request_lines().unwrap(); + + // No events available + assert_eq!( + config + .request() + .wait_edge_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + } + + #[test] + fn dir_out_edge_failure() { + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[0])); + config.lconfig(Some(Direction::Output), None, None, Some(Edge::Both), None); + + assert_eq!( + config.request_lines().unwrap_err(), + ChipError::OperationFailed("Gpio LineRequest request-lines", IoError::new(EINVAL)) + ); + } + } + + mod verify { + use super::*; + + // Helpers to generate events + fn trigger_falling_and_rising_edge(sim: Arc<Sim>, offset: u32) { + spawn(move || { + sleep(Duration::from_millis(30)); + sim.set_pull(offset, GPIOSIM_PULL_UP as i32).unwrap(); + + sleep(Duration::from_millis(30)); + sim.set_pull(offset, GPIOSIM_PULL_DOWN as i32).unwrap(); + }); + } + + fn trigger_rising_edge_events_on_two_offsets(sim: Arc<Sim>, offset: [u32; 2]) { + spawn(move || { + sleep(Duration::from_millis(30)); + sim.set_pull(offset[0], GPIOSIM_PULL_UP as i32).unwrap(); + + sleep(Duration::from_millis(30)); + sim.set_pull(offset[1], GPIOSIM_PULL_UP as i32).unwrap(); + }); + } + + fn trigger_multiple_events(sim: Arc<Sim>, offset: u32) { + sim.set_pull(offset, GPIOSIM_PULL_UP as i32).unwrap(); + sleep(Duration::from_millis(10)); + + sim.set_pull(offset, GPIOSIM_PULL_DOWN as i32).unwrap(); + sleep(Duration::from_millis(10)); + + sim.set_pull(offset, GPIOSIM_PULL_UP as i32).unwrap(); + sleep(Duration::from_millis(10)); + } + + #[test] + fn both_edges() { + const GPIO: u32 = 2; + let buf = EdgeEventBuffer::new(0).unwrap(); + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_edge(Some(Edge::Both)); + config.request_lines().unwrap(); + + // Generate events + trigger_falling_and_rising_edge(config.sim(), GPIO); + + // Rising event + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + let ts_rising = event.get_timestamp(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Rising); + assert_eq!(event.get_line_offset(), GPIO); + + // Falling event + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + let ts_falling = event.get_timestamp(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Falling); + assert_eq!(event.get_line_offset(), GPIO); + + // No events available + assert_eq!( + config + .request() + .wait_edge_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + + assert!(ts_falling > ts_rising); + } + + #[test] + fn rising_edge() { + const GPIO: u32 = 6; + let buf = EdgeEventBuffer::new(0).unwrap(); + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_edge(Some(Edge::Rising)); + config.request_lines().unwrap(); + + // Generate events + trigger_falling_and_rising_edge(config.sim(), GPIO); + + // Rising event + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Rising); + assert_eq!(event.get_line_offset(), GPIO); + + // No events available + assert_eq!( + config + .request() + .wait_edge_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + } + + #[test] + fn falling_edge() { + const GPIO: u32 = 7; + let buf = EdgeEventBuffer::new(0).unwrap(); + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_edge(Some(Edge::Falling)); + config.request_lines().unwrap(); + + // Generate events + trigger_falling_and_rising_edge(config.sim(), GPIO); + + // Falling event + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Falling); + assert_eq!(event.get_line_offset(), GPIO); + + // No events available + assert_eq!( + config + .request() + .wait_edge_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + } + + #[test] + fn edge_sequence() { + const GPIO: [u32; 2] = [0, 1]; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&GPIO)); + config.lconfig_edge(Some(Edge::Both)); + config.request_lines().unwrap(); + + // Generate events + trigger_rising_edge_events_on_two_offsets(config.sim(), GPIO); + + // Rising event GPIO 0 + let buf = EdgeEventBuffer::new(0).unwrap(); + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Rising); + assert_eq!(event.get_line_offset(), GPIO[0]); + assert_eq!(event.get_global_seqno(), 1); + assert_eq!(event.get_line_seqno(), 1); + + // Rising event GPIO 1 + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 1 + ); + assert_eq!(buf.get_num_events(), 1); + + let event = buf.get_event(0).unwrap(); + assert_eq!(event.get_event_type().unwrap(), LineEdgeEvent::Rising); + assert_eq!(event.get_line_offset(), GPIO[1]); + assert_eq!(event.get_global_seqno(), 2); + assert_eq!(event.get_line_seqno(), 1); + + // No events available + assert_eq!( + config + .request() + .wait_edge_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + } + + #[test] + fn multiple_events() { + const GPIO: u32 = 1; + let buf = EdgeEventBuffer::new(0).unwrap(); + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_edge(Some(Edge::Both)); + config.request_lines().unwrap(); + + // Generate events + trigger_multiple_events(config.sim(), GPIO); + + // Read multiple events + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 3 + ); + assert_eq!(buf.get_num_events(), 3); + + let mut global_seqno = 1; + let mut line_seqno = 1; + + // Verify sequence number of events + for i in 0..3 { + let event = buf.get_event(i).unwrap(); + assert_eq!(event.get_line_offset(), GPIO); + assert_eq!(event.get_global_seqno(), global_seqno); + assert_eq!(event.get_line_seqno(), line_seqno); + + global_seqno += 1; + line_seqno += 1; + } + } + + #[test] + fn over_capacity() { + const GPIO: u32 = 2; + let buf = EdgeEventBuffer::new(2).unwrap(); + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_edge(Some(Edge::Both)); + config.request_lines().unwrap(); + + // Generate events + trigger_multiple_events(config.sim(), GPIO); + + // Read multiple events + config + .request() + .wait_edge_event(Duration::from_secs(1)) + .unwrap(); + + assert_eq!( + config + .request() + .read_edge_event(&buf, buf.get_capacity()) + .unwrap(), + 2 + ); + assert_eq!(buf.get_num_events(), 2); + } + } +} diff --git a/bindings/rust/tests/info_event.rs b/bindings/rust/tests/info_event.rs new file mode 100644 index 000000000000..96d8385deadf --- /dev/null +++ b/bindings/rust/tests/info_event.rs @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod info_event { + use libc::EINVAL; + use std::sync::Arc; + use std::thread::{sleep, spawn}; + use std::time::Duration; + + use vmm_sys_util::errno::Error as IoError; + + use crate::common::*; + use libgpiod::{Chip, Direction, Error as ChipError, Event, LineConfig, RequestConfig}; + + fn request_reconfigure_line(chip: Arc<Chip>) { + spawn(move || { + sleep(Duration::from_millis(10)); + + let lconfig1 = LineConfig::new().unwrap(); + let rconfig = RequestConfig::new().unwrap(); + rconfig.set_offsets(&[7]); + + let request = chip.request_lines(&rconfig, &lconfig1).unwrap(); + + sleep(Duration::from_millis(10)); + + let mut lconfig2 = LineConfig::new().unwrap(); + lconfig2.set_direction_default(Direction::Output); + + request.reconfigure_lines(&lconfig2).unwrap(); + + sleep(Duration::from_millis(10)); + }); + } + + mod watch { + use super::*; + const NGPIO: u64 = 8; + const GPIO: u32 = 7; + + #[test] + fn failure() { + let sim = Sim::new(Some(NGPIO), None, true).unwrap(); + let chip = Chip::open(sim.dev_path()).unwrap(); + + assert_eq!( + chip.watch_line_info(NGPIO as u32).unwrap_err(), + ChipError::OperationFailed("Gpio LineInfo line-info", IoError::new(EINVAL)) + ); + + chip.watch_line_info(3).unwrap(); + + // No events available + assert_eq!( + chip.wait_info_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + } + + #[test] + fn verify() { + let sim = Sim::new(Some(NGPIO), None, true).unwrap(); + let chip = Chip::open(sim.dev_path()).unwrap(); + let info = chip.watch_line_info(GPIO).unwrap(); + + assert_eq!(info.get_offset(), GPIO); + } + + #[test] + fn reconfigure() { + let sim = Sim::new(Some(NGPIO), None, true).unwrap(); + let chip = Arc::new(Chip::open(sim.dev_path()).unwrap()); + let info = chip.watch_line_info(GPIO).unwrap(); + + assert_eq!(info.get_direction().unwrap(), Direction::Input); + + // Generate events + request_reconfigure_line(chip.clone()); + + // Line requested event + chip.wait_info_event(Duration::from_secs(1)).unwrap(); + let event = chip.read_info_event().unwrap(); + let ts_req = event.get_timestamp(); + + assert_eq!(event.get_event_type().unwrap(), Event::LineRequested); + assert_eq!( + event.line_info().unwrap().get_direction().unwrap(), + Direction::Input + ); + + // Line changed event + chip.wait_info_event(Duration::from_secs(1)).unwrap(); + let event = chip.read_info_event().unwrap(); + let ts_rec = event.get_timestamp(); + + assert_eq!(event.get_event_type().unwrap(), Event::LineConfigChanged); + assert_eq!( + event.line_info().unwrap().get_direction().unwrap(), + Direction::Output + ); + + // Line released event + chip.wait_info_event(Duration::from_secs(1)).unwrap(); + let event = chip.read_info_event().unwrap(); + let ts_rel = event.get_timestamp(); + + assert_eq!(event.get_event_type().unwrap(), Event::LineReleased); + + // No events available + assert_eq!( + chip.wait_info_event(Duration::from_millis(100)) + .unwrap_err(), + ChipError::OperationTimedOut + ); + + // Check timestamps are really monotonic. + assert!(ts_rel > ts_rec); + assert!(ts_rec > ts_req); + } + } +} diff --git a/bindings/rust/tests/line_config.rs b/bindings/rust/tests/line_config.rs new file mode 100644 index 000000000000..82879324a7f0 --- /dev/null +++ b/bindings/rust/tests/line_config.rs @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod line_config { + use std::time::Duration; + + use libgpiod::{Bias, Direction, Drive, Edge, EventClock, LineConfig}; + + mod default { + use super::*; + + #[test] + fn verify() { + let lconfig = LineConfig::new().unwrap(); + + assert_eq!(lconfig.get_direction_default().unwrap(), Direction::AsIs); + assert_eq!(lconfig.get_edge_detection_default().unwrap(), Edge::None); + assert_eq!(lconfig.get_bias_default().unwrap(), Bias::AsIs); + assert_eq!(lconfig.get_drive_default().unwrap(), Drive::PushPull); + assert_eq!(lconfig.get_active_low_default(), false); + assert_eq!( + lconfig.get_debounce_period_default().unwrap(), + Duration::from_millis(0) + ); + assert_eq!( + lconfig.get_event_clock_default().unwrap(), + EventClock::Monotonic + ); + assert_eq!(lconfig.get_output_value_default().unwrap(), 0); + assert_eq!(lconfig.get_overrides().unwrap().len(), 0); + } + } + + mod overrides { + use super::*; + + #[test] + fn direction() { + const GPIO: u32 = 0; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_direction_default(Direction::AsIs); + lconfig.set_direction_override(Direction::Input, GPIO); + + assert_eq!(lconfig.direction_is_overridden(GPIO), true); + assert_eq!( + lconfig.get_direction_offset(GPIO).unwrap(), + Direction::Input + ); + + lconfig.clear_direction_override(GPIO); + assert_eq!(lconfig.direction_is_overridden(GPIO), false); + assert_eq!(lconfig.get_direction_offset(GPIO).unwrap(), Direction::AsIs); + } + + #[test] + fn edge_detection() { + const GPIO: u32 = 1; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_edge_detection_default(Edge::None); + lconfig.set_edge_detection_override(Edge::Both, GPIO); + + assert_eq!(lconfig.edge_detection_is_overridden(GPIO), true); + assert_eq!(lconfig.get_edge_detection_offset(GPIO).unwrap(), Edge::Both); + + lconfig.clear_edge_detection_override(GPIO); + assert_eq!(lconfig.edge_detection_is_overridden(GPIO), false); + assert_eq!(lconfig.get_edge_detection_offset(GPIO).unwrap(), Edge::None); + } + + #[test] + fn bias() { + const GPIO: u32 = 2; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_bias_default(Bias::AsIs); + lconfig.set_bias_override(Bias::PullDown, GPIO); + + assert_eq!(lconfig.bias_is_overridden(GPIO), true); + assert_eq!(lconfig.get_bias_offset(GPIO).unwrap(), Bias::PullDown); + + lconfig.clear_bias_override(GPIO); + assert_eq!(lconfig.bias_is_overridden(GPIO), false); + assert_eq!(lconfig.get_bias_offset(GPIO).unwrap(), Bias::AsIs); + } + + #[test] + fn drive() { + const GPIO: u32 = 3; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_drive_default(Drive::PushPull); + lconfig.set_drive_override(Drive::OpenDrain, GPIO); + + assert_eq!(lconfig.drive_is_overridden(GPIO), true); + assert_eq!(lconfig.get_drive_offset(GPIO).unwrap(), Drive::OpenDrain); + + lconfig.clear_drive_override(GPIO); + assert_eq!(lconfig.drive_is_overridden(GPIO), false); + assert_eq!(lconfig.get_drive_offset(GPIO).unwrap(), Drive::PushPull); + } + + #[test] + fn active_low() { + const GPIO: u32 = 4; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_active_low_default(false); + lconfig.set_active_low_override(true, GPIO); + + assert_eq!(lconfig.active_low_is_overridden(GPIO), true); + assert_eq!(lconfig.get_active_low_offset(GPIO), true); + + lconfig.clear_active_low_override(GPIO); + assert_eq!(lconfig.active_low_is_overridden(GPIO), false); + assert_eq!(lconfig.get_active_low_offset(GPIO), false); + } + + #[test] + fn debounce_period() { + const GPIO: u32 = 5; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_debounce_period_default(Duration::from_millis(5)); + lconfig.set_debounce_period_override(Duration::from_millis(3), GPIO); + + assert_eq!(lconfig.debounce_period_is_overridden(GPIO), true); + assert_eq!( + lconfig.get_debounce_period_offset(GPIO).unwrap(), + Duration::from_millis(3) + ); + + lconfig.clear_debounce_period_override(GPIO); + assert_eq!(lconfig.debounce_period_is_overridden(GPIO), false); + assert_eq!( + lconfig.get_debounce_period_offset(GPIO).unwrap(), + Duration::from_millis(5) + ); + } + + #[test] + fn event_clock() { + const GPIO: u32 = 6; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_event_clock_default(EventClock::Monotonic); + lconfig.set_event_clock_override(EventClock::Realtime, GPIO); + + assert_eq!(lconfig.event_clock_is_overridden(GPIO), true); + assert_eq!( + lconfig.get_event_clock_offset(GPIO).unwrap(), + EventClock::Realtime + ); + + lconfig.clear_event_clock_override(GPIO); + assert_eq!(lconfig.event_clock_is_overridden(GPIO), false); + assert_eq!( + lconfig.get_event_clock_offset(GPIO).unwrap(), + EventClock::Monotonic + ); + } + + #[test] + fn output_value() { + const GPIO: u32 = 0; + let mut lconfig = LineConfig::new().unwrap(); + + lconfig.set_output_value_default(0); + lconfig.set_output_value_override(1, GPIO); + lconfig.set_output_values(&[1, 2, 8], &[1, 1, 1]).unwrap(); + + for line in [0, 1, 2, 8] { + assert_eq!(lconfig.output_value_is_overridden(line), true); + assert_eq!(lconfig.get_output_value_offset(line).unwrap(), 1); + + lconfig.clear_output_value_override(line); + assert_eq!(lconfig.output_value_is_overridden(line), false); + assert_eq!(lconfig.get_output_value_offset(line).unwrap(), 0); + } + } + } +} diff --git a/bindings/rust/tests/line_info.rs b/bindings/rust/tests/line_info.rs new file mode 100644 index 000000000000..f6f8f592cc85 --- /dev/null +++ b/bindings/rust/tests/line_info.rs @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod line_info { + use libc::EINVAL; + use std::time::Duration; + + use vmm_sys_util::errno::Error as IoError; + + use crate::common::*; + use libgpiod::{Bias, Chip, Direction, Drive, Edge, Error as ChipError, EventClock}; + use libgpiod_sys::{GPIOSIM_HOG_DIR_OUTPUT_HIGH, GPIOSIM_HOG_DIR_OUTPUT_LOW}; + + const NGPIO: u64 = 8; + + mod basic { + use super::*; + + #[test] + fn verify() { + const GPIO: u32 = 0; + const LABEL: &str = "foobar"; + let sim = Sim::new(Some(NGPIO), None, false).unwrap(); + sim.set_line_name(GPIO, LABEL).unwrap(); + sim.hog_line(GPIO, "hog", GPIOSIM_HOG_DIR_OUTPUT_HIGH as i32) + .unwrap(); + sim.enable().unwrap(); + + let chip = Chip::open(sim.dev_path()).unwrap(); + let info = chip.line_info(GPIO).unwrap(); + + assert_eq!(info.get_offset(), GPIO); + assert_eq!(info.get_name().unwrap(), LABEL); + assert_eq!(info.is_used(), true); + assert_eq!(info.get_consumer().unwrap(), "hog"); + assert_eq!(info.get_direction().unwrap(), Direction::Output); + assert_eq!(info.is_active_low(), false); + assert_eq!(info.get_bias().unwrap(), Bias::Unknown); + assert_eq!(info.get_drive().unwrap(), Drive::PushPull); + assert_eq!(info.get_edge_detection().unwrap(), Edge::None); + assert_eq!(info.get_event_clock().unwrap(), EventClock::Monotonic); + assert_eq!(info.is_debounced(), false); + assert_eq!(info.get_debounce_period(), Duration::from_millis(0)); + + assert_eq!( + chip.line_info(NGPIO as u32).unwrap_err(), + ChipError::OperationFailed("Gpio LineInfo line-info", IoError::new(EINVAL)) + ); + } + } + + mod properties { + use super::*; + + #[test] + fn verify() { + let sim = Sim::new(Some(NGPIO), None, false).unwrap(); + sim.set_line_name(1, "one").unwrap(); + sim.set_line_name(2, "two").unwrap(); + sim.set_line_name(4, "four").unwrap(); + sim.set_line_name(5, "five").unwrap(); + sim.hog_line(3, "hog3", GPIOSIM_HOG_DIR_OUTPUT_HIGH as i32) + .unwrap(); + sim.hog_line(4, "hog4", GPIOSIM_HOG_DIR_OUTPUT_LOW as i32) + .unwrap(); + sim.enable().unwrap(); + + let chip = Chip::open(sim.dev_path()).unwrap(); + chip.line_info(6).unwrap(); + + let info4 = chip.line_info(4).unwrap(); + assert_eq!(info4.get_offset(), 4); + assert_eq!(info4.get_name().unwrap(), "four"); + assert_eq!(info4.is_used(), true); + assert_eq!(info4.get_consumer().unwrap(), "hog4"); + assert_eq!(info4.get_direction().unwrap(), Direction::Output); + assert_eq!(info4.is_active_low(), false); + assert_eq!(info4.get_bias().unwrap(), Bias::Unknown); + assert_eq!(info4.get_drive().unwrap(), Drive::PushPull); + assert_eq!(info4.get_edge_detection().unwrap(), Edge::None); + assert_eq!(info4.get_event_clock().unwrap(), EventClock::Monotonic); + assert_eq!(info4.is_debounced(), false); + assert_eq!(info4.get_debounce_period(), Duration::from_millis(0)); + } + } +} diff --git a/bindings/rust/tests/line_request.rs b/bindings/rust/tests/line_request.rs new file mode 100644 index 000000000000..361ee6318d2e --- /dev/null +++ b/bindings/rust/tests/line_request.rs @@ -0,0 +1,234 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod line_request { + use libc::{EBUSY, EINVAL}; + + use vmm_sys_util::errno::Error as IoError; + + use crate::common::*; + use libgpiod::{Bias, Direction, Error as ChipError, LineConfig}; + use libgpiod_sys::{ + GPIOSIM_PULL_DOWN, GPIOSIM_PULL_UP, GPIOSIM_VALUE_ACTIVE, GPIOSIM_VALUE_INACTIVE, + }; + + const NGPIO: u64 = 8; + + mod invalid_arguments { + use super::*; + + #[test] + fn no_offsets() { + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(None); + config.lconfig_raw(); + + assert_eq!( + config.request_lines().unwrap_err(), + ChipError::OperationFailed("Gpio LineRequest request-lines", IoError::new(EINVAL)) + ); + } + + #[test] + fn duplicate_offsets() { + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[2, 0, 0, 4])); + config.lconfig_raw(); + + assert_eq!( + config.request_lines().unwrap_err(), + ChipError::OperationFailed("Gpio LineRequest request-lines", IoError::new(EBUSY)) + ); + } + + #[test] + fn out_of_bound_offsets() { + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[2, 0, 8, 4])); + config.lconfig_raw(); + + assert_eq!( + config.request_lines().unwrap_err(), + ChipError::OperationFailed("Gpio LineRequest request-lines", IoError::new(EINVAL)) + ); + } + } + + mod verify { + use super::*; + + #[test] + fn custom_consumer() { + const GPIO: u32 = 2; + const CONSUMER: &str = "foobar"; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig_consumer(Some(&[GPIO]), Some(CONSUMER)); + config.lconfig_raw(); + config.request_lines().unwrap(); + + let info = config.chip().line_info(GPIO).unwrap(); + + assert_eq!(info.is_used(), true); + assert_eq!(info.get_consumer().unwrap(), CONSUMER); + } + + #[test] + fn empty_consumer() { + const GPIO: u32 = 2; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&[GPIO])); + config.lconfig_raw(); + config.request_lines().unwrap(); + + let info = config.chip().line_info(GPIO).unwrap(); + + assert_eq!(info.is_used(), true); + assert_eq!(info.get_consumer().unwrap(), "?"); + } + + #[test] + fn read_values() { + let offsets = [7, 1, 0, 6, 2]; + let pulls = [ + GPIOSIM_PULL_UP, + GPIOSIM_PULL_UP, + GPIOSIM_PULL_DOWN, + GPIOSIM_PULL_UP, + GPIOSIM_PULL_DOWN, + ]; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.set_pull(&offsets, &pulls); + config.rconfig(Some(&offsets)); + config.lconfig(Some(Direction::Input), None, None, None, None); + config.request_lines().unwrap(); + + let request = config.request(); + + // Buffer is smaller + let mut values: Vec<i32> = vec![0; 4]; + assert_eq!( + request.get_values(&mut values).unwrap_err(), + ChipError::OperationFailed( + "Gpio LineRequest array size mismatch", + IoError::new(EINVAL), + ) + ); + + // Buffer is larger + let mut values: Vec<i32> = vec![0; 6]; + assert_eq!( + request.get_values(&mut values).unwrap_err(), + ChipError::OperationFailed( + "Gpio LineRequest array size mismatch", + IoError::new(EINVAL), + ) + ); + + // Single values read properly + assert_eq!(request.get_value(7).unwrap(), 1); + + // Values read properly + let mut values: Vec<i32> = vec![0; 5]; + request.get_values(&mut values).unwrap(); + for i in 0..values.len() { + assert_eq!( + values[i], + match pulls[i] { + GPIOSIM_PULL_DOWN => 0, + _ => 1, + } + ); + } + + // Subset of values read properly + let mut values: Vec<i32> = vec![0; 3]; + request.get_values_subset(&[2, 0, 6], &mut values).unwrap(); + assert_eq!(values[0], 0); + assert_eq!(values[1], 0); + assert_eq!(values[2], 1); + + // Value read properly after reconfigure + let mut lconfig = LineConfig::new().unwrap(); + lconfig.set_active_low_default(true); + request.reconfigure_lines(&lconfig).unwrap(); + assert_eq!(request.get_value(7).unwrap(), 0); + } + + #[test] + fn set_output_values() { + let offsets = [0, 1, 3, 4]; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&offsets)); + config.lconfig(Some(Direction::Output), Some(1), Some((4, 0)), None, None); + config.request_lines().unwrap(); + + assert_eq!(config.sim().val(0).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_ACTIVE); + + // Overriden + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_INACTIVE); + + // Default + assert_eq!(config.sim().val(2).unwrap(), GPIOSIM_VALUE_INACTIVE); + } + + #[test] + fn reconfigure_output_values() { + let offsets = [0, 1, 3, 4]; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&offsets)); + config.lconfig(Some(Direction::Output), Some(0), None, None, None); + config.request_lines().unwrap(); + let request = config.request(); + + // Set single value + request.set_value(1, 1).unwrap(); + assert_eq!(config.sim().val(0).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_INACTIVE); + request.set_value(1, 0).unwrap(); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_INACTIVE); + + // Set values of subset + request.set_values_subset(&[4, 3], &[1, 1]).unwrap(); + assert_eq!(config.sim().val(0).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_ACTIVE); + request.set_values_subset(&[4, 3], &[0, 0]).unwrap(); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_INACTIVE); + + // Set all values + request.set_values(&[1, 0, 1, 0]).unwrap(); + assert_eq!(config.sim().val(0).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_ACTIVE); + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_INACTIVE); + request.set_values(&[0, 0, 0, 0]).unwrap(); + assert_eq!(config.sim().val(0).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(1).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_INACTIVE); + assert_eq!(config.sim().val(4).unwrap(), GPIOSIM_VALUE_INACTIVE); + } + + #[test] + fn set_bias() { + let offsets = [3]; + let mut config = TestConfig::new(NGPIO).unwrap(); + config.rconfig(Some(&offsets)); + config.lconfig(Some(Direction::Input), None, None, None, Some(Bias::PullUp)); + config.request_lines().unwrap(); + config.request(); + + // Set single value + assert_eq!(config.sim().val(3).unwrap(), GPIOSIM_VALUE_ACTIVE); + } + } +} diff --git a/bindings/rust/tests/request_config.rs b/bindings/rust/tests/request_config.rs new file mode 100644 index 000000000000..e914ca8ec887 --- /dev/null +++ b/bindings/rust/tests/request_config.rs @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause +// +// Copyright 2022 Linaro Ltd. All Rights Reserved. +// Viresh Kumar viresh.kumar@linaro.org + +mod common; + +mod request_config { + use vmm_sys_util::errno::Error as IoError; + + use libgpiod::{Error as ChipError, RequestConfig}; + + mod verify { + use super::*; + + #[test] + fn default() { + let rconfig = RequestConfig::new().unwrap(); + + assert_eq!(rconfig.get_offsets().len(), 0); + assert_eq!(rconfig.get_event_buffer_size(), 0); + assert_eq!( + rconfig.get_consumer().unwrap_err(), + ChipError::OperationFailed("Gpio RequestConfig get-consumer", IoError::new(0)) + ); + } + + #[test] + fn initialized() { + let offsets = [0, 1, 2, 3]; + const CONSUMER: &str = "foobar"; + let rconfig = RequestConfig::new().unwrap(); + rconfig.set_consumer(CONSUMER); + rconfig.set_offsets(&offsets); + rconfig.set_event_buffer_size(64); + + assert_eq!(rconfig.get_offsets(), offsets); + assert_eq!(rconfig.get_event_buffer_size(), 64); + assert_eq!(rconfig.get_consumer().unwrap(), CONSUMER); + } + } +}