diff options
Diffstat (limited to 'firmware/target/arm/tms320dm320/kernel-dm320.c')
-rw-r--r-- | firmware/target/arm/tms320dm320/kernel-dm320.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/firmware/target/arm/tms320dm320/kernel-dm320.c b/firmware/target/arm/tms320dm320/kernel-dm320.c new file mode 100644 index 0000000000..be2b14b3cb --- /dev/null +++ b/firmware/target/arm/tms320dm320/kernel-dm320.c @@ -0,0 +1,63 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2007 by Karl Kurbjun + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "config.h" +#include "system.h" +#include "kernel.h" +#include "timer.h" +#include "thread.h" + +extern void (*tick_funcs[MAX_NUM_TICK_TASKS])(void); + +void tick_start(unsigned int interval_in_ms) +{ + IO_TIMER1_TMMD = CONFIG_TIMER1_TMMD_STOP; + + /* Setup the Prescalar (Divide by 10) + * Based on linux/include/asm-arm/arch-integrator/timex.h + */ + IO_TIMER1_TMPRSCL = 0x000A; + + /* Setup the Divisor */ + IO_TIMER1_TMDIV = (TIMER_FREQ / (10*1000))*interval_in_ms; + + /* Turn Timer1 to Free Run mode */ + IO_TIMER1_TMMD = CONFIG_TIMER1_TMMD_FREE_RUN; + + /* Enable the interrupt */ + IO_INTC_EINT0 |= 1<<IRQ_TIMER1; +} + +void TIMER1(void) +{ + int i; + + /* Run through the list of tick tasks */ + for(i = 0; i < MAX_NUM_TICK_TASKS; i++) + { + if(tick_funcs[i]) + { + tick_funcs[i](); + } + } + + current_tick++; + + IO_INTC_IRQ0 = 1<<IRQ_TIMER1; +} |