From c623494f6d4c9b44e04ce1d0f50517ef5409cbce Mon Sep 17 00:00:00 2001 From: patacongo Date: Tue, 21 Dec 2010 12:05:25 +0000 Subject: [PATCH] Add some range checking git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3209 42af7a65-404d-4744-a932-0658087f49c3 --- arch/arm/src/lpc17xx/lpc17_ohciram.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm/src/lpc17xx/lpc17_ohciram.h b/arch/arm/src/lpc17xx/lpc17_ohciram.h index eb159785d8..477a57a2b4 100755 --- a/arch/arm/src/lpc17xx/lpc17_ohciram.h +++ b/arch/arm/src/lpc17xx/lpc17_ohciram.h @@ -209,9 +209,17 @@ #define LPC17_TDFREE_BASE (LPC17_EDFREE_BASE + LPC17_EDFREE_SIZE) #define LPC17_IOFREE_BASE (LPC17_TDFREE_BASE + LPC17_TDFREE_SIZE) +#if LPC17_IOFREE_BASE > LPC17_OHCIRAM_END +# error "Insufficient OHCI RAM allocated" +#endif + /* Finally, use the remainder of the allocated OHCI for IO buffers */ -#define LPC17_IOBUFFERS ((LPC17_OHCIRAM_END - LPC17_IOBUFFER_BASE) / CONFIG_USBHOST_IOBUFSIZE) +#define LPC17_IOBUFFERS ((LPC17_OHCIRAM_END - LPC17_IOFREE_BASE) / CONFIG_USBHOST_IOBUFSIZE) + +#if LPC17_IOBUFFERS < 1 +# warning "No IO buffers allocated" +#endif /************************************************************************************ * Public Types