android/ypr0: Merge kernel-*.c to generic kernel-unix.c.

Change-Id: Ife3fceb53829ef4e13bae73d8d2f10d7e56d484d

5 files changed, 50 insertions, 141 deletions

diff --git a/firmware/target/hosted/android/kernel-android.c b/firmware/target/hosted/android/kernel-android.c
deleted file mode 100644
index e3522418fe..0000000000
--- a/firmware/target/hosted/android/kernel-android.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (c) 2010 Thomas Martitz
- *
- * 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 <time.h>
-#include <signal.h>
-#include <errno.h>
-#include <unistd.h>
-#include <pthread.h>
-#include "config.h"
-#include "system.h"
-#include "button.h"
-#include "audio.h"
-#include "panic.h"
-
-
-static pthread_cond_t wfi_cond = PTHREAD_COND_INITIALIZER;
-static pthread_mutex_t wfi_mtx = PTHREAD_MUTEX_INITIALIZER;
-/*
- * call tick tasks and wake the scheduler up */
-void timer_signal(union sigval arg)
-{
-    (void)arg;
-    call_tick_tasks();
-    interrupt();
-}
-
-/*
- * wait on the sem which the signal handler posts to save cpu time (aka sleep)
- *
- * other mechanisms could use them as well */
-void wait_for_interrupt(void)
-{
-    pthread_cond_wait(&wfi_cond, &wfi_mtx);
-}
-
-/*
- * Wakeup the kernel, if sleeping (shall not be called from a signal handler) */
-void interrupt(void)
-{
-    pthread_cond_signal(&wfi_cond);
-}
-
-/*
- * setup a hrtimer to send a signal to our process every tick
- *
- * WARNING: JNI calls are not permitted from tick tasks, as the
- * underlying thread is not attached to the Java VM
- *
- * Can be possibly be attached if it really needs to be. but let's
- * keep this leightweight */
-void tick_start(unsigned int interval_in_ms)
-{
-    int ret = 0;
-    timer_t timerid;
-    struct itimerspec ts;
-    sigevent_t sigev;
-
-    /* initializing in the declaration causes some weird warnings */
-    memset(&sigev, 0, sizeof(sigevent_t));
-    sigev.sigev_notify = SIGEV_THREAD,
-    sigev.sigev_notify_function = timer_signal,
-
-    ts.it_value.tv_sec = ts.it_interval.tv_sec = 0;
-    ts.it_value.tv_nsec = ts.it_interval.tv_nsec = interval_in_ms*1000*1000;
-
-    /* add the timer */
-    ret |= timer_create(CLOCK_REALTIME, &sigev, &timerid);
-    ret |= timer_settime(timerid, 0, &ts, NULL);
-
-    /* Grab the mutex already now and leave it to this thread. We don't
-     * care about race conditions when signaling the condition (because
-     * they are not critical), but a mutex is necessary due to the API */
-    pthread_mutex_lock(&wfi_mtx);
-
-    if (ret != 0)
-        panicf("%s(): %s\n", __func__, strerror(errno));
-}
-
-
-bool timer_register(int reg_prio, void (*unregister_callback)(void),
-                    long cycles, void (*timer_callback)(void))
-{
-    (void)reg_prio;
-    (void)unregister_callback;
-    (void)cycles;
-    (void)timer_callback;
-    return false;
-}
-
-bool timer_set_period(long cycles)
-{
-    (void)cycles;
-    return false;
-}
-
-void timer_unregister(void)
-{
-}
diff --git a/firmware/target/hosted/android/system-target.h b/firmware/target/hosted/android/system-target.h
index 12610de42f..aba7e6d6c0 100644
--- a/firmware/target/hosted/android/system-target.h
+++ b/firmware/target/hosted/android/system-target.h
@@ -18,22 +18,16 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
+
 #ifndef __SYSTEM_TARGET_H__
 #define __SYSTEM_TARGET_H__
 
-#define disable_irq()
-#define enable_irq()
-#define disable_irq_save() 0
-#define restore_irq(level) (void)level
+#include "kernel-unix.h"
 
 static inline void commit_dcache(void) {}
 static inline void commit_discard_dcache(void) {}
 static inline void commit_discard_idcache(void) {}
 
-void power_off(void);
-void wait_for_interrupt(void);
-void interrupt(void);
-
  /* don't pull in jni.h for every user of this file, it should be only needed
   * within the target tree (if at all)
   * define this before #including system.h or system-target.h */
@@ -47,4 +41,3 @@ extern JNIEnv* getJavaEnvironment(void);
 #endif /* __SYSTEM_TARGET_H__ */
 
 #define NEED_GENERIC_BYTESWAPS
-
diff --git a/firmware/target/hosted/ypr0/kernel-ypr0.c b/firmware/target/hosted/kernel-unix.c
index bcf2cee583..a0167d46c5 100644
--- a/firmware/target/hosted/ypr0/kernel-ypr0.c
+++ b/firmware/target/hosted/kernel-unix.c
@@ -20,6 +20,7 @@
  ****************************************************************************/
 
 
+#include <stdlib.h>
 #include <time.h>
 #include <signal.h>
 #include <errno.h>
@@ -63,10 +64,13 @@ void interrupt(void)
 
 /*
  * setup a hrtimer to send a signal to our process every tick
+ *
+ * WARNING for Android: JNI calls are not permitted from tick tasks, as the
+ * underlying thread is not attached to the Java VM
+ *
+ * Can be possibly be attached if it really needs to be. but let's
+ * keep this leightweight
  */
-union sigval tick_arg = {
-    .sival_int = 0,
-};
 
 void tick_start(unsigned int interval_in_ms)
 {
@@ -126,13 +130,13 @@ bool timer_register(int reg_prio, void (*unregister_callback)(void),
     if (timer_prio >= 0 && global_unreg_callback)
         global_unreg_callback();
 
-    /* initializing in the declaration causes some weird warnings */
     memset(&sigev, 0, sizeof(sigevent_t));
     sigev.sigev_notify = SIGEV_THREAD,
     sigev.sigev_notify_function = timer_cb;
 
-    ts.it_value.tv_sec = ts.it_interval.tv_sec = in_us / 1000000;
-    ts.it_value.tv_nsec = ts.it_interval.tv_nsec = (in_us%1000000)*1000;
+    div_t q = div(in_us, 1000000);
+    ts.it_value.tv_sec = ts.it_interval.tv_sec = q.quot;
+    ts.it_value.tv_nsec = ts.it_interval.tv_nsec = q.rem*1000;
 
     /* add the timer */
     ret |= timer_create(CLOCK_REALTIME, &sigev, &timer_tid);
@@ -149,8 +153,9 @@ bool timer_set_period(long cycles)
 {
     struct itimerspec ts;
     long in_us = cycles_to_microseconds(cycles);
-    ts.it_value.tv_sec = ts.it_interval.tv_sec = in_us / 1000000;
-    ts.it_value.tv_nsec = ts.it_interval.tv_nsec = (in_us%1000000)*1000;
+    div_t q = div(in_us, 1000000);
+    ts.it_value.tv_sec = ts.it_interval.tv_sec = q.quot;
+    ts.it_value.tv_nsec = ts.it_interval.tv_nsec = q.rem*1000;
 
     return timer_settime(timer_tid, 0, &ts, NULL) == 0;
 }
diff --git a/firmware/target/hosted/kernel-unix.h b/firmware/target/hosted/kernel-unix.h
new file mode 100644
index 0000000000..f296668861
--- /dev/null
+++ b/firmware/target/hosted/kernel-unix.h
@@ -0,0 +1,34 @@
+/***************************************************************************
+ *             __________               __   ___.                  
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \  
+ *                     \/            \/     \/    \/            \/ 
+ * $Id$
+ *
+ * Copyright (C) 2010 by Thomas Martitz
+ *
+ * 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 __KERNEL_UNIX_H__
+#define __KERNEL_UNIX_H__
+
+/* interrupt emulation incomplete, doesn't seem needed so far */
+#define disable_irq()
+#define enable_irq()
+#define disable_irq_save() 0
+#define restore_irq(level) (void)level
+
+void wait_for_interrupt(void);
+void interrupt(void);
+
+#endif /* __KERNEL_UNIX_H__ */
diff --git a/firmware/target/hosted/ypr0/system-target.h b/firmware/target/hosted/ypr0/system-target.h
index 07a3163ea9..efd235282e 100644
--- a/firmware/target/hosted/ypr0/system-target.h
+++ b/firmware/target/hosted/ypr0/system-target.h
@@ -21,13 +21,7 @@
 #ifndef __SYSTEM_TARGET_H__
 #define __SYSTEM_TARGET_H__
 
-#define disable_irq()
-#define enable_irq()
-#define disable_irq_save() 0
-#define restore_irq(level) (void)level
-
-void wait_for_interrupt(void);
-void interrupt(void);
+#include "kernel-unix.h"
 
 static inline void commit_dcache(void) {}
 static inline void commit_discard_dcache(void) {}