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-rw-r--r--firmware/target/arm/kernel-pp.c56
-rw-r--r--firmware/target/arm/pnx0101/kernel-pnx0101.c45
-rw-r--r--firmware/target/coldfire/kernel-coldfire.c64
-rw-r--r--firmware/target/sh/kernel-sh.c65
4 files changed, 230 insertions, 0 deletions
diff --git a/firmware/target/arm/kernel-pp.c b/firmware/target/arm/kernel-pp.c
new file mode 100644
index 0000000000..b9195844ba
--- /dev/null
+++ b/firmware/target/arm/kernel-pp.c
@@ -0,0 +1,56 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Björn Stenberg
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "system.h"
23#include "kernel.h"
24
25#ifndef BOOTLOADER
26void TIMER1(void)
27{
28 /* Run through the list of tick tasks (using main core) */
29 TIMER1_VAL; /* Read value to ack IRQ */
30
31 /* Run through the list of tick tasks using main CPU core -
32 wake up the COP through its control interface to provide pulse */
33 call_tick_tasks();
34
35#if NUM_CORES > 1
36 /* Pulse the COP */
37 core_wake(COP);
38#endif /* NUM_CORES */
39}
40#endif
41
42/* Must be last function called init kernel/thread initialization */
43void tick_start(unsigned int interval_in_ms)
44{
45#ifndef BOOTLOADER
46 TIMER1_CFG = 0x0;
47 TIMER1_VAL;
48 /* enable timer */
49 TIMER1_CFG = 0xc0000000 | (interval_in_ms*1000 - 1);
50 /* unmask interrupt source */
51 CPU_INT_EN = TIMER1_MASK;
52#else
53 /* We don't enable interrupts in the bootloader */
54 (void)interval_in_ms;
55#endif
56}
diff --git a/firmware/target/arm/pnx0101/kernel-pnx0101.c b/firmware/target/arm/pnx0101/kernel-pnx0101.c
new file mode 100644
index 0000000000..db0f1b0d7f
--- /dev/null
+++ b/firmware/target/arm/pnx0101/kernel-pnx0101.c
@@ -0,0 +1,45 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2007 by Tomasz Malesinski
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "system.h"
23#include "kernel.h"
24
25void timer_handler(void)
26{
27 /* Run through the list of tick tasks */
28 call_tick_tasks();
29
30 TIMER0.clr = 0;
31}
32
33void tick_start(unsigned int interval_in_ms)
34{
35 TIMER0.ctrl &= ~0x80; /* Disable the counter */
36 TIMER0.ctrl |= 0x40; /* Reload after counting down to zero */
37 TIMER0.load = 3000000 * interval_in_ms / 1000;
38 TIMER0.ctrl &= ~0xc; /* No prescaler */
39 TIMER0.clr = 1; /* Clear the interrupt request */
40
41 irq_set_int_handler(IRQ_TIMER0, timer_handler);
42 irq_enable_int(IRQ_TIMER0);
43
44 TIMER0.ctrl |= 0x80; /* Enable the counter */
45}
diff --git a/firmware/target/coldfire/kernel-coldfire.c b/firmware/target/coldfire/kernel-coldfire.c
new file mode 100644
index 0000000000..093736ee91
--- /dev/null
+++ b/firmware/target/coldfire/kernel-coldfire.c
@@ -0,0 +1,64 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Björn Stenberg
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "system.h"
23#include "kernel.h"
24#include "panic.h"
25
26void tick_start(unsigned int interval_in_ms)
27{
28 unsigned long count;
29 int prescale;
30
31 count = CPU_FREQ/2 * interval_in_ms / 1000 / 16;
32
33 if(count > 0x10000)
34 {
35 panicf("Error! The tick interval is too long (%d ms)\n",
36 interval_in_ms);
37 return;
38 }
39
40 prescale = cpu_frequency / CPU_FREQ;
41 /* Note: The prescaler is later adjusted on-the-fly on CPU frequency
42 changes within timer.c */
43
44 /* We are using timer 0 */
45
46 TRR0 = (unsigned short)(count - 1); /* The reference count */
47 TCN0 = 0; /* reset the timer */
48 TMR0 = 0x001d | ((unsigned short)(prescale - 1) << 8);
49 /* restart, CLK/16, enabled, prescaler */
50
51 TER0 = 0xff; /* Clear all events */
52
53 ICR1 = 0x8c; /* Interrupt on level 3.0 */
54 IMR &= ~0x200;
55}
56
57void TIMER0(void) __attribute__ ((interrupt_handler));
58void TIMER0(void)
59{
60 /* Run through the list of tick tasks */
61 call_tick_tasks();
62
63 TER0 = 0xff; /* Clear all events */
64}
diff --git a/firmware/target/sh/kernel-sh.c b/firmware/target/sh/kernel-sh.c
new file mode 100644
index 0000000000..905b272fce
--- /dev/null
+++ b/firmware/target/sh/kernel-sh.c
@@ -0,0 +1,65 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Björn Stenberg
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "system.h"
23#include "kernel.h"
24#include "panic.h"
25
26void tick_start(unsigned int interval_in_ms)
27{
28 unsigned long count;
29
30 count = CPU_FREQ * interval_in_ms / 1000 / 8;
31
32 if(count > 0x10000)
33 {
34 panicf("Error! The tick interval is too long (%d ms)\n",
35 interval_in_ms);
36 return;
37 }
38
39 /* We are using timer 0 */
40
41 TSTR &= ~0x01; /* Stop the timer */
42 TSNC &= ~0x01; /* No synchronization */
43 TMDR &= ~0x01; /* Operate normally */
44
45 TCNT0 = 0; /* Start counting at 0 */
46 GRA0 = (unsigned short)(count - 1);
47 TCR0 = 0x23; /* Clear at GRA match, sysclock/8 */
48
49 /* Enable interrupt on level 1 */
50 IPRC = (IPRC & ~0x00f0) | 0x0010;
51
52 TSR0 &= ~0x01;
53 TIER0 = 0xf9; /* Enable GRA match interrupt */
54
55 TSTR |= 0x01; /* Start timer 1 */
56}
57
58void IMIA0(void) __attribute__ ((interrupt_handler));
59void IMIA0(void)
60{
61 /* Run through the list of tick tasks */
62 call_tick_tasks();
63
64 TSR0 &= ~0x01;
65}
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