X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fsimple_pic.c;fp=palacios%2Fsrc%2Fdevices%2Fsimple_pic.c;h=70031116b6cdbf55b418d0fc6b2a76712f2b27c6;hp=0000000000000000000000000000000000000000;hb=ddc16b0737cf58f7aa90a69c6652cdf4090aec51;hpb=626595465a2c6987606a6bc697df65130ad8c2d3

diff --git a/palacios/src/devices/simple_pic.c b/palacios/src/devices/simple_pic.c
new file mode 100644
index 0000000..7003111
--- /dev/null
+++ b/palacios/src/devices/simple_pic.c
@@ -0,0 +1,98 @@
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#include <devices/simple_pic.h>
+#include <palacios/vmm_intr.h>
+#include <palacios/vmm_types.h>
+#include <palacios/vmm.h>
+
+struct pic_internal {
+  int pending_irq;
+
+};
+
+
+static int pic_intr_pending(void * private_data) {
+  struct pic_internal * data = (struct pic_internal *)private_data;
+  
+  return (data->pending_irq > 0);
+}
+
+static int pic_raise_intr(void * private_data, int irq) {
+  struct pic_internal * data = (struct pic_internal *)private_data;
+
+  data->pending_irq = irq;
+
+
+  return 0;
+}
+
+
+static int pic_get_intr_number(void * private_data) {
+  struct pic_internal * data = (struct pic_internal *)private_data;
+
+  return data->pending_irq;
+}
+
+
+static struct intr_ctrl_ops intr_ops = {
+  .intr_pending = pic_intr_pending,
+  .get_intr_number = pic_get_intr_number,
+  .raise_intr = pic_raise_intr
+};
+
+
+
+
+static int pic_init_device(struct vm_device * dev) {
+  struct pic_internal * data = (struct pic_internal *)dev->private_data;
+  v3_set_intr_controller(dev->vm, &intr_ops, data);
+  data->pending_irq = 0;
+
+  return 0;
+}
+
+
+static int pic_deinit_device(struct vm_device * dev) {
+  return 0;
+}
+
+
+
+
+
+static struct vm_device_ops dev_ops = {
+  .init = pic_init_device,
+  .deinit = pic_deinit_device,
+  .reset = NULL,
+  .start = NULL,
+  .stop = NULL
+};
+
+
+struct vm_device * v3_create_simple_pic() {
+  struct pic_internal * state = NULL;
+  state = (struct pic_internal *)V3_Malloc(sizeof(struct pic_internal));
+  V3_ASSERT(state != NULL);
+
+  struct vm_device * pic_dev = v3_create_device("Simple Pic", &dev_ops, state);
+
+
+  return pic_dev;
+}