11 files changed, 135 insertions, 9 deletions

diff --git a/firmware/target/arm/as3525/timer-target.h b/firmware/target/arm/as3525/timer-target.h
index b1bdfed78f..d42afaa2c4 100644
--- a/firmware/target/arm/as3525/timer-target.h
+++ b/firmware/target/arm/as3525/timer-target.h
@@ -30,7 +30,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/at91sam/lyre_proto1/timer-target.h b/firmware/target/arm/at91sam/lyre_proto1/timer-target.h
index b8298d3d77..1db63c5211 100644
--- a/firmware/target/arm/at91sam/lyre_proto1/timer-target.h
+++ b/firmware/target/arm/at91sam/lyre_proto1/timer-target.h
@@ -32,7 +32,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/imx31/gigabeat-s/timer-target.h b/firmware/target/arm/imx31/gigabeat-s/timer-target.h
index f019a45519..4ea459719c 100644
--- a/firmware/target/arm/imx31/gigabeat-s/timer-target.h
+++ b/firmware/target/arm/imx31/gigabeat-s/timer-target.h
@@ -31,7 +31,7 @@ void _timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     _timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     _timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/pnx0101/timer-target.h b/firmware/target/arm/pnx0101/timer-target.h
index 853da07838..68d0e6b58a 100644
--- a/firmware/target/arm/pnx0101/timer-target.h
+++ b/firmware/target/arm/pnx0101/timer-target.h
@@ -30,7 +30,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/s3c2440/gigabeat-fx/timer-target.h b/firmware/target/arm/s3c2440/gigabeat-fx/timer-target.h
index 700833486d..577d0f947c 100644
--- a/firmware/target/arm/s3c2440/gigabeat-fx/timer-target.h
+++ b/firmware/target/arm/s3c2440/gigabeat-fx/timer-target.h
@@ -32,7 +32,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/tcc780x/timer-target.h b/firmware/target/arm/tcc780x/timer-target.h
index d6a8c4b0aa..c477ca6c70 100644
--- a/firmware/target/arm/tcc780x/timer-target.h
+++ b/firmware/target/arm/tcc780x/timer-target.h
@@ -31,7 +31,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/arm/tms320dm320/timer-target.h b/firmware/target/arm/tms320dm320/timer-target.h
index 9f3ffdf712..072f7e06a9 100644
--- a/firmware/target/arm/tms320dm320/timer-target.h
+++ b/firmware/target/arm/tms320dm320/timer-target.h
@@ -31,7 +31,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/coldfire/timer-target.h b/firmware/target/coldfire/timer-target.h
index 29488887e8..c7f695a0c8 100644
--- a/firmware/target/coldfire/timer-target.h
+++ b/firmware/target/coldfire/timer-target.h
@@ -31,7 +31,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/mips/ingenic_jz47xx/timer-target.h b/firmware/target/mips/ingenic_jz47xx/timer-target.h
index 2e072440ab..d42bd41bdc 100644
--- a/firmware/target/mips/ingenic_jz47xx/timer-target.h
+++ b/firmware/target/mips/ingenic_jz47xx/timer-target.h
@@ -33,7 +33,7 @@ void __timer_stop(void);
 #define __TIMER_SET(cycles, set) \
     __timer_set(cycles, set)
 
-#define __TIMER_START() \
+#define __TIMER_START(int_prio) \
     __timer_start()
 
 #define __TIMER_STOP(...) \
diff --git a/firmware/target/sh/archos/timer-archos.c b/firmware/target/sh/archos/timer-archos.c
new file mode 100644
index 0000000000..e7526a8409
--- /dev/null
+++ b/firmware/target/sh/archos/timer-archos.c
@@ -0,0 +1,85 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2005 Jens Arnold
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#include "cpu.h"
+#include "system.h"
+#include "timer.h"
+#include "timer-target.h"
+
+void IMIA4(void) __attribute__((interrupt_handler));
+void IMIA4(void)
+{
+    if (pfn_timer != NULL)
+        pfn_timer();
+    and_b(~0x01, &TSR4); /* clear the interrupt */
+}
+
+bool __timer_set(long cycles, bool start)
+{
+    int phi = 0; /* bits for the prescaler */
+    int prescale = 1;
+
+    while (cycles > 0x10000)
+    {   /* work out the smallest prescaler that makes it fit */
+        phi++;
+        prescale <<= 1;
+        cycles >>= 1;
+    }
+
+    if (prescale > 8)
+        return false;
+
+    if (start)
+    {
+        if (pfn_unregister != NULL)
+        {
+            pfn_unregister();
+            pfn_unregister = NULL;
+        }
+
+        and_b(~0x10, &TSTR); /* Stop the timer 4 */
+        and_b(~0x10, &TSNC); /* No synchronization */
+        and_b(~0x10, &TMDR); /* Operate normally */
+
+        TIER4 = 0xF9;        /* Enable GRA match interrupt */
+    }
+
+    TCR4 = 0x20 | phi;   /* clear at GRA match, set prescaler */
+    GRA4 = (unsigned short)(cycles - 1);
+    if (start || (TCNT4 >= GRA4))
+        TCNT4 = 0;
+    and_b(~0x01, &TSR4); /* clear an eventual interrupt */
+
+    return true;
+}
+
+bool __timer_start(int int_prio)
+{
+    IPRD = (IPRD & 0xFF0F) | int_prio << 4;  /* interrupt priority */
+    or_b(0x10, &TSTR); /* start timer 4 */
+    return true;
+}
+
+void __timer_stop(void)
+{
+    and_b(~0x10, &TSTR);    /* stop the timer 4 */
+    IPRD = (IPRD & 0xFF0F); /* disable interrupt */
+}
diff --git a/firmware/target/sh/archos/timer-target.h b/firmware/target/sh/archos/timer-target.h
new file mode 100644
index 0000000000..08fcae1156
--- /dev/null
+++ b/firmware/target/sh/archos/timer-target.h
@@ -0,0 +1,41 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Copyright (C) 2005 Jens Arnold
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* as published by the Free Software Foundation; either version 2
+* of the License, or (at your option) any later version.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+#ifndef TIMER_TARGET_H
+#define TIMER_TARGET_H
+
+#include "config.h"
+
+bool __timer_set(long cycles, bool start);
+bool __timer_start(int int_prio);
+void __timer_stop(void);
+
+#define TIMER_FREQ CPU_FREQ
+
+#define __TIMER_SET(cycles, set) \
+    __timer_set(cycles, set)
+
+#define __TIMER_START(int_prio) \
+    __timer_start(int_prio)
+
+#define __TIMER_STOP(...) \
+    __timer_stop()
+
+#endif /* TIMER_TARGET_H */