drivers/addrenv.c: Move up_addrenv_ implemenation to common folder.
This commit is contained in:
Xiang Xiao
Gregory Nutt
parent
c397692532
commit
0c50499027
@ -3,6 +3,10 @@
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config DEV_SIMPLE_ADDRENV
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bool "Simple AddrEnv"
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default n
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config DEV_NULL
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bool "Enable /dev/null"
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default y
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@ -88,6 +88,10 @@ ifeq ($(CONFIG_SPECIFIC_DRIVERS),y)
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include platform$(DELIM)Make.defs
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endif
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ifeq ($(CONFIG_DEV_SIMPLE_ADDRENV),y)
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CSRCS += addrenv.c
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endif
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CSRCS += dev_null.c dev_zero.c
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ifneq ($(CONFIG_DISABLE_MOUNTPOINT),y)
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92
drivers/addrenv.c
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92
drivers/addrenv.c
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@ -0,0 +1,92 @@
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/****************************************************************************
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* drivers/addrenv.c
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*
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* Copyright (C) 2018 Pinecone Inc. All rights reserved.
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* Author: Guiding Li<liguiding@pinecone.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <nuttx/drivers/addrenv.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct simple_addrenv_s g_addrenv_dummy;
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static const struct simple_addrenv_s *g_addrenv = &g_addrenv_dummy;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void simple_addrenv_initialize(const struct simple_addrenv_s *addrenv)
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{
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g_addrenv = addrenv;
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}
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void *up_addrenv_pa_to_va(uintptr_t pa)
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{
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uint32_t i;
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for (i = 0; g_addrenv[i].size; i++)
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{
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if (pa - g_addrenv[i].pa < g_addrenv[i].size)
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{
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return (void *)(g_addrenv[i].va + B2C(pa - g_addrenv[i].pa));
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}
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}
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return (void *)B2C(pa);
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}
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uintptr_t up_addrenv_va_to_pa(void *va_)
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{
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uintptr_t va = C2B((uintptr_t)va_);
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uint32_t i;
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for (i = 0; g_addrenv[i].size; i++)
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{
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uintptr_t tmp = C2B(g_addrenv[i].va);
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if (va - tmp < g_addrenv[i].size)
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{
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return g_addrenv[i].pa + (va - tmp);
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}
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}
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return va;
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}
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81
include/nuttx/drivers/addrenv.h
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81
include/nuttx/drivers/addrenv.h
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@ -0,0 +1,81 @@
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/****************************************************************************
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* include/nuttx/drivers/addrenv.h
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*
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* Copyright (C) 2018 Pinecone Inc. All rights reserved.
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* Author: Guiding Li<liguiding@pinecone.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_DRIVERS_ADDRENV_H
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#define __INCLUDE_NUTTX_DRIVERS_ADDRENV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <sys/types.h>
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct simple_addrenv_s
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{
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uintptr_t va;
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uintptr_t pa;
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size_t size;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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void simple_addrenv_initialize(const struct simple_addrenv_s *addrenv);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_DRIVERS_ADDRENV_H */
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