From: John Hodge (sonata) <tpg@mutabah.net>
Date: Sun, 20 Jan 2013 06:32:14 +0000 (+0800)
Subject: Modules/RPiDisplay - Commiting non-compiled code
X-Git-Tag: rel0.15~598^2~15
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=700377afe01dab774d82c2fa7d121d76fb347d12;p=tpg%2Facess2.git

Modules/RPiDisplay - Commiting non-compiled code
---

diff --git a/KernelLand/Modules/Display/RPi/main.c b/KernelLand/Modules/Display/RPi/main.c
new file mode 100644
index 00000000..a0df9031
--- /dev/null
+++ b/KernelLand/Modules/Display/RPi/main.c
@@ -0,0 +1,61 @@
+/**
+ * Acess2 Raspberry Pi (BCM2835)
+ * - By John Hodge (thePowersGang)
+ *
+ * main.c
+ * - Driver core
+ *
+ * http://www.cl.cam.ac.uk/freshers/raspberrypi/tutorials/os/screen01.html
+ */
+#define DEBUG	0
+#define VERSION	((0<<8)|1)
+#include <acess.h>
+#include <errno.h>
+#include <modules.h>
+#include <vfs.h>
+#include <fs_devfs.h>
+#include <drv_pci.h>
+#include <api_drv_video.h>
+
+// === PROTOCOLS ===
+ int	RPiVid_Install(const char **Arguments);
+// - GPU Communication
+ int	RPiVid_int_MBoxCheck(Uint8 Box);
+Uint32	RPiVid_int_MBoxRecv(Uint8 Box);
+void	RPiVid_int_MBoxSend(Uint8 Box, Uint32 Message);
+
+// === GLOBALS ===
+MODULE_DEFINE(0, VERSION, RPiVid, RPiVid_Install, NULL, NULL);
+
+// === CODE ===
+int RPiVid_Install(const char **Arguments)
+{
+	return 0;
+}
+
+
+// --- GPU Comms ---
+int RPiVid_int_MBoxCheck(Uint8 Box)
+{
+	return 0;
+}
+
+Uint32 RPiVid_int_MBoxRecv(Uint8 Box)
+{
+	Uint32	val;
+	do {
+		while( gRPiVid_Mbox->Status & (1 << 30) )
+			;
+		val = gRPiVid_Mbox->Read;
+	} while( (val & 0xF) != Box );
+	
+	return 0;
+}
+
+void RPiVid_int_MBoxSend(Uint8 Box, Uint32 Message)
+{
+	while( gRPiVid_Mbox.Status & (1 << 31) )
+		;
+	gRPiVid_Mbox.Write = (Message << 4) | (Box & 0xF);
+}
+