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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-01-22 16:09:10 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2013-01-22 16:09:10 +0000 |
| commit | 4c97f71507ad55c05dde7979f450dfa4d9c7d800 (patch) | |
| tree | 4a123dae59fba7a45afa0683bedf9022cd3c6f89 /nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c | |
| parent | f538392b3b9cb194d8b33b14b9a8e17636cf7f81 (diff) | |
| download | px4-nuttx-4c97f71507ad55c05dde7979f450dfa4d9c7d800.tar.gz px4-nuttx-4c97f71507ad55c05dde7979f450dfa4d9c7d800.tar.bz2 px4-nuttx-4c97f71507ad55c05dde7979f450dfa4d9c7d800.zip | |
Use of BASEPRI to control ARM interrupts is now functional
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5548 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c')
| -rw-r--r-- | nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c b/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c index bf6d18287..0241d4bf7 100644 --- a/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c +++ b/nuttx/arch/arm/src/lpc17xx/lpc17_ethernet.c @@ -104,11 +104,28 @@ #endif /* If the user did not specify a priority for Ethernet interrupts, set the - * interrupt priority to the maximum. + * interrupt priority to the maximum (unless CONFIG_ARMV7M_USEBASEPRI is + * defined, then set it to the maximum allowable priority). */ #ifndef CONFIG_NET_PRIORITY -# define CONFIG_NET_PRIORITY NVIC_SYSH_PRIORITY_MAX +# ifdef CONFIG_ARMV7M_USEBASEPRI +# define CONFIG_NET_PRIORITY NVIC_SYSH_DISABLE_PRIORITY +# else +# define CONFIG_NET_PRIORITY NVIC_SYSH_PRIORITY_MAX +# endif +#endif + +/* If the priority is set at the max (0) and CONFIG_ARMV7M_USEBASEPRI is + * defined, then silently drop the priority to NVIC_SYSH_DISABLE_PRIORITY. + * In this configuratin, nothing is permitted to run at priority zero + * except for the SVCALL handler. NVIC_SYSH_DISABLE_PRIORITY is the + * maximum allowable priority in that case. + */ + +#if CONFIG_NET_PRIORITY == 0 && defined(CONFIG_ARMV7M_USEBASEPRI) +# undef CONFIG_NET_PRIORITY +# define CONFIG_NET_PRIORITY NVIC_SYSH_DISABLE_PRIORITY #endif /* Debug Configuration *****************************************************/ |