From 85fb2190d50080199c0c8e78c88ec231ccb75e7e Mon Sep 17 00:00:00 2001 From: patacongo Date: Tue, 8 Jun 2010 03:16:46 +0000 Subject: More lpc17xx port files git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2735 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c | 132 ++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100755 nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c (limited to 'nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c') diff --git a/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c b/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c new file mode 100755 index 000000000..3fee53018 --- /dev/null +++ b/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c @@ -0,0 +1,132 @@ +/**************************************************************************** + * arch/arm/src/lpc17xx/lpc17_allocateheap.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include + +#include +#include + +#include "chip.h" +#include "up_arch.h" +#include "up_internal.h" + +/**************************************************************************** + * Private Definitions + ****************************************************************************/ + +#if CONFIG_DRAM_END > (LPC17_SRAM_BASE+LPC17_SRAM_SIZE) +# error "CONFIG_DRAM_END is beyond the end of CPU SRAM" +# undef CONFIG_DRAM_END +# define CONFIG_DRAM_END (LPC17_SRAM_BASE+LPC17_SRAM_SIZE) +#elif CONFIG_DRAM_END < (LPC17_SRAM_BASE+LPC17_SRAM_SIZE) +# warning "CONFIG_DRAM_END is before end of CPU SRAM... not all of CPU SRAM used" +#endif + +#ifdef LPC17_HAVE_BANK0 +# if CONFIG_MM_REGIONS < 2 +# warning "CONFIG_MM_REGIONS < 2: AHB SRAM Bank0 not included in HEAP" +# endif +#else +# if CONFIG_MM_REGIONS > 1 +# warning "CONFIG_MM_REGIONS > 1: This MCH has no AHB SRAM Bank0" +# endif +#endif + +#ifdef LPC17_HAVE_BANK1 +# if CONFIG_MM_REGIONS < 3 +# warning "CONFIG_MM_REGIONS < 3: AHB SRAM Bank1 not included in HEAP" +# endif +#else +# if CONFIG_MM_REGIONS > 2 +# warning "CONFIG_MM_REGIONS > 2: This MCH has no AHB SRAM Bank1" +# endif +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_allocate_heap + * + * Description: + * The heap may be statically allocated by + * defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE. If these + * are not defined, then this function will be called to + * dynamically set aside the heap region. + * + ****************************************************************************/ + +void up_allocate_heap(FAR void **heap_start, size_t *heap_size) +{ + up_ledon(LED_HEAPALLOCATE); + *heap_start = (FAR void*)g_heapbase; + *heap_size = CONFIG_DRAM_END - g_heapbase; +} + +/************************************************************************ + * Name: up_addregion + * + * Description: + * Memory may be added in non-contiguous chunks. Additional chunks are + * added by calling this function. + * + ************************************************************************/ + +#if CONFIG_MM_REGIONS > 1 +void up_addregion(void) +{ + mm_addregion((FAR void*)LPC17_HAVE_BANK0, 16*1024); + +#if CONFIG_MM_REGIONS > 2 + mm_addregion((FAR void*)LPC17_HAVE_BANK1, 16*1024); +#endif +} +#endif -- cgit v1.2.3