From b955dff268005d3d55ee3f38af0875718ab6021a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C3=ABl=20Carr=C3=A9?= <rafael.carre@gmail.com>
Date: Mon, 29 Jun 2009 14:29:35 +0000
Subject: Move PP (last target) timer code in target tree

Put warnings in timer.h for incomplete targets (TIMER_FREQ not defined and/or timer-target.h inexistant)

Correct TIMER_STOP & TIMER_START macros arguments for target without timers
TIMER_START takes an extra argument in multicore builds (macro in macro doesn't work fine..)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21557 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/timer.c | 71 +++++++-------------------------------------------------
 1 file changed, 9 insertions(+), 62 deletions(-)

(limited to 'firmware/timer.c')

diff --git a/firmware/timer.c b/firmware/timer.c
index 044b871..8cd165b 100644
--- a/firmware/timer.c
+++ b/firmware/timer.c
@@ -29,64 +29,22 @@
 static int timer_prio = -1;
 void SHAREDBSS_ATTR (*pfn_timer)(void) = NULL;      /* timer callback */
 void SHAREDBSS_ATTR (*pfn_unregister)(void) = NULL; /* unregister callback */
-#if defined CPU_PP
-static long SHAREDBSS_ATTR cycles_new = 0;
-#endif
 
 #ifndef __TIMER_SET
 /* Define these if not defined by target to make the #else cases compile
  * even if the target doesn't have them implemented. */
 #define __TIMER_SET(cycles, set) false
-#define __TIMER_START() false
-#define __TIMER_STOP(...)
+#if NUM_CORES > 1
+#define __TIMER_START(int_prio, core) false
+#else
+#define __TIMER_START(int_prio) false
+#endif
+#define __TIMER_STOP()
 #endif
-
-/* interrupt handler */
-#if defined(CPU_PP)
-void TIMER2(void)
-{
-    TIMER2_VAL; /* ACK interrupt */
-    if (cycles_new > 0)
-    {
-        TIMER2_CFG = 0xc0000000 | (cycles_new - 1);
-        cycles_new = 0;
-    }
-    if (pfn_timer != NULL)
-    {
-        cycles_new = -1;
-        /* "lock" the variable, in case timer_set_period()
-         * is called within pfn_timer() */
-        pfn_timer();
-        cycles_new = 0;
-    }
-}
-#endif /* CONFIG_CPU */
 
 static bool timer_set(long cycles, bool start)
 {
-#if defined(CPU_PP)
-    if (cycles > 0x20000000 || cycles < 2)
-        return false;
-
-    if (start)
-    {
-        if (pfn_unregister != NULL)
-        {
-            pfn_unregister();
-            pfn_unregister = NULL;
-        }
-        CPU_INT_DIS = TIMER2_MASK;
-        COP_INT_DIS = TIMER2_MASK;
-    }
-    if (start || (cycles_new == -1))  /* within isr, cycles_new is "locked" */
-        TIMER2_CFG = 0xc0000000 | (cycles - 1);    /* enable timer */
-    else
-        cycles_new = cycles;
-
-    return true;
-#else
     return __TIMER_SET(cycles, start);
-#endif /* CONFIG_CPU */
 }
 
 /* Register a user timer, called every <cycles> TIMER_FREQ cycles */
@@ -109,18 +67,12 @@ bool timer_register(int reg_prio, void (*unregister_callback)(void),
     pfn_unregister = unregister_callback;
     timer_prio = reg_prio;
 
-#if defined(CPU_PP)
-    /* unmask interrupt source */
 #if NUM_CORES > 1
-    if (core == COP)
-        COP_INT_EN = TIMER2_MASK;
-    else
-#endif
-        CPU_INT_EN = TIMER2_MASK;
-    return true;
+    return __TIMER_START(int_prio, core);
 #else
     return __TIMER_START(int_prio);
 #endif
+
     /* Cover for targets that don't use all these */
     (void)reg_prio;
     (void)unregister_callback;
@@ -137,13 +89,8 @@ bool timer_set_period(long cycles)
 
 void timer_unregister(void)
 {
-#if defined(CPU_PP)
-    TIMER2_CFG = 0;         /* stop timer 2 */
-    CPU_INT_DIS = TIMER2_MASK;
-    COP_INT_DIS = TIMER2_MASK;
-#else
     __TIMER_STOP();
-#endif
+
     pfn_timer = NULL;
     pfn_unregister = NULL;
     timer_prio = -1;
-- 
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