1 files changed, 45 insertions, 0 deletions
diff --git a/src/amd_lx_vga.c b/src/amd_lx_vga.c
new file mode 100644
index 0000000..6351f3d
--- /dev/null
+++ b/src/amd_lx_vga.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2006 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Neither the name of the Advanced Micro Devices, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ */
+
+/*
+ * This file contains routines to set modes using the VGA registers.  
+ * Since this file is for the first generation graphics unit, it interfaces
+ * to SoftVGA registers.  It works for both VSA1 and VSA2.
+ */
+
+/* VGA STRUCTURE */
+
+int gu3_get_vga_active(void);
+
+int
+gu3_get_vga_active(void)
+{
+    int data = READ_REG32(DC3_GENERAL_CFG);
+
+    if (data & DC3_GCFG_VGAE)
+        return 1;
+    return 0;
+}