added a flag to shared_info indicating one-time BIOS checking has been done, added struct typedef that can hold the BIOS info needed. More will probably come, like slaved-CRTC info (TVout use concurrent with panels).

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16075 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/graphics/nvidia/DriverInterface.h

@@ -28,6 +28,14 @@
 extern "C" {
 #endif
 
+/* this structure describes all info we gather from the BIOS that we can't gather otherwise.  In the 
+ * end it should disappear, which would mean we are BIOS pre-init independant or fully coldstart capable. */
+typedef struct {
+	bool		done;				/* for discovering one-time VGA BIOS pre-init programming: */
+	uint32		p1_timing_flags;	/* panel 1 modeline timing flags */
+	uint32		p2_timing_flags;	/* panel 2 modeline timing flags */
+} bios_init;
+
 typedef struct {
 	sem_id	sem;
 	int32	ben;
@@ -71,7 +79,8 @@ enum {
 	NV_GET_NTH_AGP_INFO,
 	NV_ENABLE_AGP,
 	NV_ISA_OUT,
-	NV_ISA_IN
+	NV_ISA_IN,
+	NV_SET_BIOS_PRE_INIT
 };
 
 /* handles to pre-defined engine commands */
@@ -139,6 +148,9 @@ typedef struct {
   /* used to return status for INIT_ACCELERANT and CLONE_ACCELERANT */
 	bool	accelerant_in_use;
 
+  /* used to detect the first time we startup (preventing loosing BIOS pre-init info) */
+	bool	system_start_done;
+
   /* bug workaround for 4.5.0 */
 	uint32 use_clone_bugfix;	/*for 4.5.0, cloning of physical memory does not work*/
 	uint32 * clone_bugfix_regs;
@@ -420,6 +432,12 @@ typedef struct {
 	uint16	data;		/* The value read or written */
 } nv_in_out_isa;
 
+/* Save BIOS pre-init programming we might need */
+typedef struct {
+	uint32		magic;	/* magic number to make sure the caller groks us */
+	bios_init	data;	/* contains all BIOS pre-init data we rely on */
+} nv_set_bios_pre_init;
+
 enum {
 	
 	_WAIT_FOR_VBLANK = (1 << 0)