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| author | Giovanni Di Sirio <gdisirio@gmail.com> | 2015-12-17 16:11:31 +0000 |
|---|---|---|
| committer | Giovanni Di Sirio <gdisirio@gmail.com> | 2015-12-17 16:11:31 +0000 |
| commit | f6616d570865fce92ae7a669611e495038e9c111 (patch) | |
| tree | 652e55d2c8a112304df967218fd77f887214352e /os/hal/src | |
| parent | ad6437b7847e7a5c4948b3a18d055a78d7c84dce (diff) | |
| download | ChibiOS-f6616d570865fce92ae7a669611e495038e9c111.tar.gz ChibiOS-f6616d570865fce92ae7a669611e495038e9c111.tar.bz2 ChibiOS-f6616d570865fce92ae7a669611e495038e9c111.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8616 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/src')
| -rw-r--r-- | os/hal/src/hal_buffers.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/os/hal/src/hal_buffers.c b/os/hal/src/hal_buffers.c new file mode 100644 index 000000000..62d1dbbb4 --- /dev/null +++ b/os/hal/src/hal_buffers.c @@ -0,0 +1,86 @@ +/*
+ ChibiOS - Copyright (C) 2006..2015 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 hal_buffers.c
+ * @brief I/O Buffers code.
+ *
+ * @addtogroup HAL_BUFFERS
+ * @{
+ */
+
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Initializes an I/O buffer object.
+ *
+ * @param[out] iobp pointer to the @p input_double_buffer_t object
+ * @param[in] bp pointer to a memory area allocated as buffer
+ * @param[in] size size of the buffers
+ *
+ * @init
+ */
+void iobInit(io_buffer_t *iobp, uint8_t *bp, size_t size) {
+
+ iobp->buffer = bp;
+ iobp->limit = bp;
+ iobp->top = bp + size;
+}
+
+/**
+ * @brief Initializes an input double buffer object.
+ *
+ * @param[out] idbp pointer to the @p input_double_buffer_t object
+ * @param[in] b1p pointer to a memory area allocated as buffer 1
+ * @param[in] b2p pointer to a memory area allocated as buffer 2
+ * @param[in] size size of the buffers
+ *
+ * @init
+ */
+void idbObjectInit(input_double_buffer_t *idbp,
+ uint8_t *b1p, uint8_t *b2p, size_t size,
+ dbnotify_t infy, void *link) {
+
+ iobInit(&idbp->buffers[0], b1p, size);
+ iobInit(&idbp->buffers[1], b2p, size);
+ idbp->counter = 0;
+ idbp->brdptr = &idbp->buffers[0];
+ idbp->bwrptr = &idbp->buffers[0];
+ idbp->notify = infy;
+ idbp->link = link;
+}
+
+/** @} */
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