Moved the kernel_startup variable declaration from int.h to kernel.h (it's defined in main.c).

Some cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12327 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/int.h

@@ -1,22 +1,23 @@
 /*
-** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
+ * Copyright 2003-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+ */
 #ifndef _KERNEL_INT_H
 #define _KERNEL_INT_H
 
-#include <KernelExport.h>
 
+#include <KernelExport.h>
 #include <arch/int.h>
 
 struct kernel_args;
 
+
 /* adds the handler but don't change whether or not the interrupt is currently enabled */
 #define B_NO_ENABLE_COUNTER	1
 
-/* during kernel startup, interrupts are disabled */
-extern bool kernel_startup;
-
 
 #ifdef __cplusplus
 extern "C" {
@@ -25,8 +26,8 @@ extern "C" {
 status_t int_init(struct kernel_args *args);
 status_t int_init_post_vm(struct kernel_args *args);
 int int_io_interrupt_handler(int vector);
-long install_interrupt_handler(long, interrupt_handler,	void *);
-long remove_interrupt_handler (long, interrupt_handler,	void *);
+status_t install_interrupt_handler(long vector, interrupt_handler, void *data);
+status_t remove_interrupt_handler(long vector, interrupt_handler, void *data);
 
 static inline void
 enable_interrupts(void)

headers/private/kernel/kernel.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2004, Axel Dörfler, axeld@pinc-software.de.
+ * Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de.
  * Distributed under the terms of the MIT License.
  *
  * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
@@ -23,7 +23,7 @@
 //#define DEBUG_KERNEL_STACKS
 	// Note, debugging kernel stacks doesn't really work yet. Since the
 	// interrupt will also try to use the stack on a page fault, all
-	// you get is a reboot.
+	// you get is a double fault.
 	// At least, you then know that the stack overflows in this case :)
 
 /** Size of the kernel stack */
@@ -51,6 +51,10 @@
 #define SET_BIT(a, b) ((a) | (1 << (b)))
 #define CLEAR_BIT(a, b) ((a) & (~(1 << (b))))
 
+/* during kernel startup, interrupts are disabled (among other things) */
+extern bool kernel_startup;
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif

src/kernel/core/int.c

@@ -34,8 +34,9 @@ struct io_vector {
 
 static struct io_vector *io_vectors = NULL;
 
+
 cpu_status
-disable_interrupts()
+disable_interrupts(void)
 {
 	return arch_int_disable_interrupts();
 }
@@ -82,11 +83,11 @@ int_init_post_vm(kernel_args *args)
  *	arch_int_enable_io_interrupt() as it only works for IRQ values
  */
 
-long
+status_t
 install_interrupt_handler(long vector, interrupt_handler handler, void *data)
 {
 	struct io_handler *io = NULL; 
-	int state;
+	cpu_status state;
 
 	if (vector < 0 || vector >= NUM_IO_VECTORS)
 		return B_BAD_VALUE;
@@ -98,7 +99,7 @@ install_interrupt_handler(long vector, interrupt_handler handler, void *data)
 	 */
 	io = (struct io_handler *)malloc(sizeof(struct io_handler));
 	if (io == NULL)
-		return ENOMEM;
+		return B_NO_MEMORY;
 
 	io->func = handler;
 	io->data = data;
@@ -113,7 +114,7 @@ install_interrupt_handler(long vector, interrupt_handler handler, void *data)
 	release_spinlock(&io_vectors[vector].vector_lock);
 	restore_interrupts(state);
 
-	return 0;
+	return B_OK;
 }
 
 
@@ -124,11 +125,12 @@ install_interrupt_handler(long vector, interrupt_handler handler, void *data)
 long
 install_io_interrupt_handler(long irq, interrupt_handler handler, void *data, ulong flags)
 {
+	// ToDo: this is x86 specific
 	long vector = irq + 0x20;
-	long rv = install_interrupt_handler(vector, handler, data);
 
-	if (rv != 0)
-		return rv;
+	status_t status = install_interrupt_handler(vector, handler, data);
+	if (status != B_OK)
+		return status;
 
 	/* If we were passed the bit-flag B_NO_ENABLE_COUNTER then
 	 * we're being asked to not alter whether the interrupt is set
@@ -137,7 +139,7 @@ install_io_interrupt_handler(long irq, interrupt_handler handler, void *data, ul
 	if ((flags & B_NO_ENABLE_COUNTER) == 0)
 		arch_int_enable_io_interrupt(irq);
 
-	return 0;
+	return B_OK;
 }
 
 
@@ -145,11 +147,11 @@ install_io_interrupt_handler(long irq, interrupt_handler handler, void *data, ul
  *	Read the notes for install_interrupt_handler!
  */
 
-long
+status_t
 remove_interrupt_handler(long vector, interrupt_handler handler, void *data)
 {
 	struct io_handler *io = NULL;
-	long status = EINVAL;
+	status_t status = B_BAD_VALUE;
 	int state;
 
 	if (vector < 0 || vector >= NUM_IO_VECTORS)
@@ -194,16 +196,15 @@ long
 remove_io_interrupt_handler(long irq, interrupt_handler handler, void *data)
 {
 	long vector = irq + 0x20;
-	long rv = remove_interrupt_handler(vector, handler, data);
-
-	if (rv < 0)
-		return rv;
+	status_t status = remove_interrupt_handler(vector, handler, data);
+	if (status < B_OK)
+		return status;
 
 	/* Check if we need to disable interrupts... */
 	if (io_vectors[vector].handler_list.next != &io_vectors[vector].handler_list)
 		arch_int_disable_io_interrupt(irq);
 
-	return 0; 
+	return B_OK;
 } 
 
 

src/kernel/core/lock.c

@@ -1,13 +1,18 @@
-/* Mutex and recursive_lock code */
+/*
+ * Copyright 2002-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
+ * Distributed under the terms of the NewOS License.
+ */
 
-/* 
-** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
+/* Mutex and recursive_lock code */
 
 
 #include <OS.h>
+
 #include <lock.h>
+#include <kernel.h>
 #include <int.h>
 #include <debug.h>
 #include <thread.h>

src/kernel/libroot/os/driver_settings.c

@@ -37,7 +37,7 @@
 #	include <util/list.h>
 #	include <lock.h>
 #	include <kdriver_settings.h>
-#	include <int.h>
+#	include <kernel.h>
 #	include <boot/kernel_args.h>
 #endif
 #ifdef _BOOT_MODE