Tick timer additions
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@219 a1c6a512-1295-4272-9138-f99709370657
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@ -14,7 +14,7 @@ TARGET = -DARCHOS_PLAYER_OLD=1
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CFLAGS = -g -O -Wall -m1 -save-temps -nostdlib -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns -fno-builtin $(INCLUDES) $(TARGET)
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AFLAGS += -small -relax
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OBJS= ../../crt0.o ../../drivers/lcd.o ../../system.o main.o ../../thread.o ../../debug.o
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OBJS= ../../crt0.o ../../system.o main.o timer.o ../../thread.o ../../debug.o
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%.o: %.S
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$(CC) -o $@ $(CFLAGS) $(INCLUDES) $(DEFS) -c $<
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@ -41,7 +41,7 @@ dist:
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tar czvf dist.tar.gz Makefile main.c start.s app.lds
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clean:
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-rm -f $(OBJS) *.x *.i *.o *.elf *.bin *.map *.mod *.bak *~
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-rm -f $(OBJS) *.s *.x *.i *.o *.elf *.bin *.map *.mod *.bak *~
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install:
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mount /mnt/archos; cp archos.mod /mnt/archos; umount /mnt/archos
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@ -20,6 +20,8 @@
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#include "sh7034.h"
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#include "debug.h"
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void tick_start(unsigned int interval);
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unsigned int s1[256];
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unsigned int s2[256];
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@ -43,6 +45,8 @@ int main(void)
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debugf("OK. Let's go\n");
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tick_start(40);
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create_thread(t1, s1, 1024);
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create_thread(t2, s2, 1024);
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@ -0,0 +1,63 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "sh7034.h"
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#include "system.h"
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#include "debug.h"
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void tick_start(unsigned int interval_in_ms)
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{
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unsigned int count;
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count = FREQ / 1000 / 8 * interval_in_ms;
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if(count > 0xffff)
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{
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debugf("Error! The tick interval is too long (%d ms)\n",
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interval_in_ms);
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return;
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}
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/* We are using timer 0 */
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TSTR &= ~0x01; /* Stop the timer */
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TSNC &= ~0x01; /* No synchronization */
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TMDR &= ~0x01; /* Operate normally */
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TCNT0 = 0; /* Start counting at 0 */
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GRA0 = 0xfff0;
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TCR0 = 0x23; /* Clear at GRA match, sysclock/8 */
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TSTR |= 0x01; /* Start timer 1 */
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/* Enable interrupt on level 1 */
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IPRC = (IPRC & ~0x00f0) | 0x0010;
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TIER0 |= 0x01; /* Enable GRA match interrupt */
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while(1)
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{
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}
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}
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#pragma interrupt
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void IMIA0(void)
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{
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TSR0 &= ~0x01;
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debugf("Yes\n");
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}
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