diff options
Diffstat (limited to '')
| -rw-r--r-- | bsps/arm/atsam/include/bsp.h | 48 |
1 files changed, 39 insertions, 9 deletions
diff --git a/bsps/arm/atsam/include/bsp.h b/bsps/arm/atsam/include/bsp.h index 2556f6046d..252db0d56c 100644 --- a/bsps/arm/atsam/include/bsp.h +++ b/bsps/arm/atsam/include/bsp.h @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * @@ -5,17 +7,28 @@ */ /* - * Copyright (c) 2016 embedded brains GmbH. All rights reserved. + * Copyright (c) 2016 embedded brains GmbH & Co. KG * - * embedded brains GmbH - * Dornierstr. 4 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #ifndef LIBBSP_ARM_ATSAM_BSP_H @@ -33,6 +46,7 @@ #include <bspopts.h> #include <bsp/default-initial-extension.h> +#include <sys/ioccom.h> #include <rtems.h> @@ -75,6 +89,10 @@ typedef struct { uint8_t phy_addr; } if_atsam_config; +extern char atsam_memory_null_begin[]; +extern char atsam_memory_null_end[]; +extern char atsam_memory_null_size[]; + extern char atsam_memory_dtcm_begin[]; extern char atsam_memory_dtcm_end[]; extern char atsam_memory_dtcm_size[]; @@ -109,6 +127,18 @@ void atsam_rtc_get_time(rtems_time_of_day *tod); void bsp_restart( const void *const addr ); +/* + * This ioctl enables the receive DMA for an UART. The DMA can be usefull if you + * loose characters in high interrupt load situations. + * + * Disabling the DMA again is only possible by closing all file descriptors of + * that UART. + * + * Note that every UART needs one DMA channel and the system has only a limited + * amount of DMAs. So only use it if you need it. + */ +#define ATSAM_UART_ENABLE_RX_DMA _IO('d', 0) + #ifdef __cplusplus } #endif /* __cplusplus */ |