X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fsimple_pic.c;fp=palacios%2Fsrc%2Fdevices%2Fsimple_pic.c;h=a4e25f56fc8e4ac0ad4b808033eb20d979b6fcd5;hb=a9ba0182142340a2dd7b6a0b7c63727e87b08c89;hp=0000000000000000000000000000000000000000;hpb=28b1d0ae6db40cb3e1f5a9b3596b625d2f2af0e4;p=palacios.git

diff --git a/palacios/src/devices/simple_pic.c b/palacios/src/devices/simple_pic.c
new file mode 100644
index 0000000..a4e25f5
--- /dev/null
+++ b/palacios/src/devices/simple_pic.c
@@ -0,0 +1,78 @@
+#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;
+  int error_code;
+};
+
+
+int pic_intr_pending(void * private_data) {
+  struct pic_internal * data = (struct pic_internal *)private_data;
+  
+  return (data->pending_irq > 0);
+}
+
+int pic_raise_intr(void * private_data, int irq, int error_code) {
+  struct pic_internal * data = (struct pic_internal *)private_data;
+
+  data->pending_irq = irq;
+  data->error_code = error_code;
+
+  return 0;
+}
+
+
+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
+};
+
+
+
+
+int pic_init_device(struct vm_device * dev) {
+  struct pic_internal * data = (struct pic_internal *)dev->private_data;
+  set_intr_controller(dev->vm, &intr_ops, data);
+  data->pending_irq = 0;
+
+  return 0;
+}
+
+
+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 * create_pic() {
+  struct pic_internal * state = NULL;
+  VMMMalloc(struct pic_internal *, state, sizeof(struct pic_internal));
+
+  struct vm_device * pic_dev = create_device("Simple Pic", &dev_ops, state);
+
+
+  return pic_dev;
+}