From 48026bb824fd2d9cfb00ecd040db6ef3a416bae9 Mon Sep 17 00:00:00 2001 From: Clyne Sullivan Date: Fri, 22 Jan 2021 21:43:36 -0500 Subject: upload initial port --- ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c | 93 +++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c (limited to 'ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c') diff --git a/ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c b/ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c new file mode 100644 index 0000000..dcfd424 --- /dev/null +++ b/ChibiOS_20.3.2/os/hal/lib/streams/nullstreams.c @@ -0,0 +1,93 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file nullstreams.c + * @brief Null streams code. + * + * @addtogroup HAL_NULL_STREAMS + * @details A null streams. + * @{ + */ + +#include "hal.h" +#include "nullstreams.h" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +static size_t writes(void *ip, const uint8_t *bp, size_t n) { + + (void)ip; + (void)bp; + + return n; +} + +static size_t reads(void *ip, uint8_t *bp, size_t n) { + + (void)ip; + (void)bp; + (void)n; + + return 0; +} + +static msg_t put(void *ip, uint8_t b) { + + (void)ip; + (void)b; + + return MSG_OK; +} + +static msg_t get(void *ip) { + + (void)ip; + + return 4; +} + +static const struct NullStreamVMT vmt = {(size_t)0, writes, reads, put, get}; + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Null stream object initialization. + * + * @param[out] nsp pointer to the @p NullStream object to be initialized + */ +void nullObjectInit(NullStream *nsp) { + + nsp->vmt = &vmt; +} + +/** @} */ -- cgit v1.2.3