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Diffstat (limited to 'firmware/target/arm/tms320dm320/kernel-dm320.c')
-rw-r--r--firmware/target/arm/tms320dm320/kernel-dm320.c63
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;
+}