1 files changed, 51 insertions, 0 deletions
diff --git a/cirrus.h b/cirrus.h
new file mode 100644
index 0000000..bda4dc4
--- /dev/null
+++ b/cirrus.h
@@ -0,0 +1,51 @@
+#define VGA_OFFSET (-0x3c0)
+#define BLT_OFFSET (0x100)
+
+#define CIRRUS_MMIO_BLTBGCOLOR        0x00	// dword
+#define CIRRUS_MMIO_BLTFGCOLOR        0x04	// dword
+#define CIRRUS_MMIO_BLTWIDTH          0x08	// word
+#define CIRRUS_MMIO_BLTHEIGHT         0x0a	// word
+#define CIRRUS_MMIO_BLTDESTPITCH      0x0c	// word
+#define CIRRUS_MMIO_BLTSRCPITCH       0x0e	// word
+#define CIRRUS_MMIO_BLTDESTADDR       0x10	// dword
+#define CIRRUS_MMIO_BLTSRCADDR        0x14	// dword
+#define CIRRUS_MMIO_BLTWRITEMASK      0x17	// byte
+#define CIRRUS_MMIO_BLTMODE           0x18	// byte
+#define CIRRUS_MMIO_BLTROP            0x1a	// byte
+#define CIRRUS_MMIO_BLTMODEEXT        0x1b	// byte
+#define CIRRUS_MMIO_BLTSTATUS         0x40	// byte
+
+#define CIRRUS_BLT_BUSY                 0x01
+#define CIRRUS_BLT_START                0x02
+#define CIRRUS_BLT_RESET                0x04
+
+#define CIRRUS_BLTMODE_BACKWARDS        0x01
+#define CIRRUS_BLTMODE_MEMSYSDEST       0x02
+#define CIRRUS_BLTMODE_MEMSYSSRC        0x04
+#define CIRRUS_BLTMODE_TRANSPARENTCOMP  0x08
+#define CIRRUS_BLTMODE_PATTERNCOPY      0x40
+#define CIRRUS_BLTMODE_COLOREXPAND      0x80
+#define CIRRUS_BLTMODE_PIXELWIDTHMASK   0x30
+#define CIRRUS_BLTMODE_PIXELWIDTH8      0x00
+#define CIRRUS_BLTMODE_PIXELWIDTH16     0x10
+#define CIRRUS_BLTMODE_PIXELWIDTH24     0x20
+#define CIRRUS_BLTMODE_PIXELWIDTH32     0x30
+
+#define CIRRUS_ROP_0                    0x00
+#define CIRRUS_ROP_SRC_AND_DST          0x05
+#define CIRRUS_ROP_NOP                  0x06
+#define CIRRUS_ROP_SRC_AND_NOTDST       0x09
+#define CIRRUS_ROP_NOTDST               0x0b
+#define CIRRUS_ROP_SRC                  0x0d
+#define CIRRUS_ROP_1                    0x0e
+#define CIRRUS_ROP_NOTSRC_AND_DST       0x50
+#define CIRRUS_ROP_SRC_XOR_DST          0x59
+#define CIRRUS_ROP_SRC_OR_DST           0x6d
+#define CIRRUS_ROP_NOTSRC_OR_NOTDST     0x90
+#define CIRRUS_ROP_SRC_NOTXOR_DST       0x95
+#define CIRRUS_ROP_SRC_OR_NOTDST        0xad
+#define CIRRUS_ROP_NOTSRC               0xd0
+#define CIRRUS_ROP_NOTSRC_OR_DST        0xd6
+#define CIRRUS_ROP_NOTSRC_AND_NOTDST    0xda
+
+void cirrus_setmode(volatile uint8_t *mmio);