svga device struct updated to mostly reflect real device

sysdata/programs/svga_driver/src/device.hb

@@ -1,6 +1,29 @@
 pci := @use("../../../libraries/pci/src/lib.hb");
 .{PCIAddress} := pci
 
+FIFO := struct {
+	reserved_size: u32,
+	using_bounce_buffer: u8,
+	bounce_buffer: [u8; 1024 * 1024],
+	next_fence: u32,
+}
+new_fifo := fn(): FIFO {
+	bounce_buffer := @as([u8; 1024 * 1024], idk)
+	return FIFO.(0, 0, bounce_buffer, 0)
+}
+
+IRQ := struct {
+	pending: u32,
+	switchContext: u32,
+	//IntrContext   oldContext;
+	//IntrContext   newContext;
+	count: u32,
+}
+
+new_irq := fn(): IRQ {
+	return IRQ.(0, 0, 0)
+}
+
 SVGADevice := struct {
 	pciAddr: PCIAddress,
 	ioBase: u32,
@@ -15,27 +38,13 @@ SVGADevice := struct {
 	height: int,
 	bpp: int,
 	pitch: int,
+	fifo: FIFO,
+	irq: IRQ,
 }
 
 svga_device := fn(): SVGADevice {
 	pci_addr := PCIAddress.(0, 0, 0)
-
-	return SVGADevice.(pci_addr, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
-}
-
-/*
-   struct {
-      uint32  reservedSize;
-      Bool    usingBounceBuffer;
-      uint8   bounceBuffer[1024 * 1024];
-      uint32  nextFence;
-   } fifo;
-
-   volatile struct {
-      uint32        pending;
-      uint32        switchContext;
-      IntrContext   oldContext;
-      IntrContext   newContext;
-      uint32        count;
-   } irq;
-*/
+	fifo := new_fifo()
+	irq := new_irq()
+	return SVGADevice.(pci_addr, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, fifo, irq)
+}