diff options
| author | Jörg Hohensohn <hohensoh@rockbox.org> | 2003-11-06 01:34:50 +0000 |
|---|---|---|
| committer | Jörg Hohensohn <hohensoh@rockbox.org> | 2003-11-06 01:34:50 +0000 |
| commit | 75bab49a542922bb3623f5671ec259e6ef4734d5 (patch) | |
| tree | eb0d8fedec577ec25460e951ccb1ce5d6f99fef0 /firmware/drivers/led.c | |
| parent | 9e957579289cac6cb468500dff5bd169d97d45fa (diff) | |
set/clear port bits with atomic instructions instead of read-modify-write, saves time+space, allows port usage in ISR
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4022 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers/led.c')
| -rw-r--r-- | firmware/drivers/led.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/firmware/drivers/led.c b/firmware/drivers/led.c index 293904f3f8..ad21dc9baf 100644 --- a/firmware/drivers/led.c +++ b/firmware/drivers/led.c @@ -20,6 +20,7 @@ #include <stdbool.h> #include "sh7034.h" #include "led.h" +#include "system.h" void led(bool on) { @@ -30,8 +31,12 @@ void led(bool on) asm("and.b" "\t" "%0,@(r0,gbr)" : : "I"(~0x40), "z"(PBDR_ADDR+1)); #else if ( on ) - PBDR |= 0x40; + { + __set_bit_constant(6, &PBDRL); + } else - PBDR &= ~0x40; + { + __clear_bit_constant(6, &PBDRL); + } #endif } |