Add mainboard x86emu interrupt function support. Add tim5690 VGA BIOS functions: int15 getting LCD panel ID.
Signed-off-by: Libra Li <libra.li@technexion.com>
Acked-by: Marc Jones <marcj303@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4990 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/mainboard/technexion/tim5690/vgabios.c b/src/mainboard/technexion/tim5690/vgabios.c
new file mode 100644
index 0000000..45b11ae
--- /dev/null
+++ b/src/mainboard/technexion/tim5690/vgabios.c
@@ -0,0 +1,77 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 coresystems GmbH
+ * Copyright (C) 2009 Libra Li <libra.li@technexion.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <console/console.h>
+#include <arch/interrupt.h>
+#include "vgabios.h"
+
+
+int tim5690_int15_handler(struct eregs *regs);
+
+static rs690_vbios_regs vbios_regs_local;
+
+/* Initialization interrupt function */
+static void vbios_fun_init(rs690_vbios_regs *vbios_regs)
+{
+ vbios_regs_local.int15_regs.fun00_panel_id = vbios_regs->int15_regs.fun00_panel_id;
+ vbios_regs_local.int15_regs.fun05_tv_standard = vbios_regs->int15_regs.fun05_tv_standard;
+}
+/* BIOS int15 function */
+int tim5690_int15_handler(struct eregs *regs)
+{
+ int res = -1;
+
+ printk(BIOS_DEBUG, "tim5690_int15_handler\n");
+
+ switch (regs->eax & 0xffff) {
+ case AMD_RS690_INT15:
+ switch (regs->ebx & 0xff) {
+ case 0x00:
+ regs->eax &= ~(0xff);
+ regs->ebx = (regs->ebx & ~(0xff)) | vbios_regs_local.int15_regs.fun00_panel_id;
+ res = 0;
+ break;
+ case 0x05:
+ regs->eax &= ~(0xff);
+ regs->ebx = (regs->ebx & ~(0xff)) | vbios_regs_local.int15_regs.fun05_tv_standard;
+ res = 0;
+ break;
+ }
+ break;
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
+ regs->eax & 0xffff);
+ break;
+ }
+
+ return res;
+}
+
+/* Initialization VBIOS function */
+void vgabios_init(rs690_vbios_regs *vbios_regs)
+{
+ printk(BIOS_DEBUG, "vgabios_init\n");
+
+ mainboard_interrupt_handlers(0x15, &tim5690_int15_handler);
+ vbios_fun_init(vbios_regs);
+}