From 0056750d63637635ec4c4aee5c628d172fc1b8f3 Mon Sep 17 00:00:00 2001
From: Jason Wright <jason@cvs.openbsd.org>
Date: Fri, 26 Jul 2002 16:57:17 +0000
Subject: - remove duplicate defns - start at some utility functions for the
 FBC handling

---
 sys/arch/sparc64/dev/creator.c    | 37 ++++++++++++++++++++++++++++++++++++-
 sys/arch/sparc64/dev/creatorvar.h | 24 ++----------------------
 2 files changed, 38 insertions(+), 23 deletions(-)

(limited to 'sys/arch/sparc64')

diff --git a/sys/arch/sparc64/dev/creator.c b/sys/arch/sparc64/dev/creator.c
index 01f4872afd1..c4e4f51d4eb 100644
--- a/sys/arch/sparc64/dev/creator.c
+++ b/sys/arch/sparc64/dev/creator.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: creator.c,v 1.13 2002/07/25 19:04:43 miod Exp $	*/
+/*	$OpenBSD: creator.c,v 1.14 2002/07/26 16:57:16 jason Exp $	*/
 
 /*
  * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
@@ -48,6 +48,7 @@
 #include <dev/wscons/wscons_raster.h>
 #include <dev/rasops/rasops.h>
 
+#include <sparc64/dev/creatorreg.h>
 #include <sparc64/dev/creatorvar.h>
 
 struct wsscreen_descr creator_stdscreen = {
@@ -76,6 +77,8 @@ int	creator_show_screen(void *, void *, int, void (*cb)(void *, int, int),
 	    void *);
 paddr_t creator_mmap(void *, off_t, int);
 static int a2int(char *, int);
+void	creator_ras_fifo_wait(struct creator_softc *, int);
+void	creator_ras_wait(struct creator_softc *);
 
 struct wsdisplay_accessops creator_accessops = {
 	creator_ioctl,
@@ -308,3 +311,35 @@ a2int(char *cp, int deflt)
 		i = i * 10 + *cp++ - '0';
 	return (i);
 }
+
+void
+creator_ras_fifo_wait(sc, n)
+	struct creator_softc *sc;
+	int n;
+{
+	int32_t cache = sc->sc_fifo_cache;
+
+	if (cache < n) {
+		do {
+			cache = FBC_READ(sc, FFB_FBC_UCSR);
+			cache = (cache & FBC_UCSR_FIFO_MASK) - 8;
+		} while (cache < n);
+	}
+	sc->sc_fifo_cache = cache - n;
+}
+
+void
+creator_ras_wait(sc)
+	struct creator_softc *sc;
+{
+	u_int32_t ucsr, r;
+
+	while (1) {
+		ucsr = FBC_READ(sc, FFB_FBC_UCSR);
+		if ((ucsr & (FBC_UCSR_FB_BUSY|FBC_UCSR_RP_BUSY)) == 0)
+			break;
+		r = ucsr & (FFB_UCSR_READ_ERR | FFB_UCSR_FIFO_OVFL);
+		if (r != 0)
+			FBC_WRITE(sc, FFB_FBC_UCSR, r);
+	}
+}
diff --git a/sys/arch/sparc64/dev/creatorvar.h b/sys/arch/sparc64/dev/creatorvar.h
index b00775defe5..9ce4fe80f8c 100644
--- a/sys/arch/sparc64/dev/creatorvar.h
+++ b/sys/arch/sparc64/dev/creatorvar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: creatorvar.h,v 1.3 2002/07/26 16:39:04 jason Exp $	*/
+/*	$OpenBSD: creatorvar.h,v 1.4 2002/07/26 16:57:16 jason Exp $	*/
 
 /*
  * Copyright (c) 2002 Jason L. Wright (jason@thought.net),
@@ -32,27 +32,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-/* Number of register sets */
-#define	FFB_NREGS		24
-
-/* Register set numbers */
-#define	FFB_REG_PROM		0
-#define	FFB_REG_DAC		1
-#define	FFB_REG_FBC		2
-#define	FFB_REG_DFB8R		3
-#define	FFB_REG_DFB8G		4
-#define	FFB_REG_DFB8B		5
-#define	FFB_REG_DFB8X		6
-#define	FFB_REG_DFB24		7
-#define	FFB_REG_DFB32		8
-#define	FFB_REG_SFB8R		9
-#define	FFB_REG_SFB8G		10
-#define	FFB_REG_SFB8B		11
-#define	FFB_REG_SFB8X		12
-#define	FFB_REG_SFB32		13
-#define	FFB_REG_SFB64		14
-#define	FFB_REG_DFB422A		15
-
 #define FFB_CREATOR		0
 #define FFB_AFB			1
 
@@ -70,6 +49,7 @@ struct creator_softc {
 	int sc_type;
 	u_int sc_mode;
 	struct rasops_info sc_rasops;
+	int32_t sc_fifo_cache;
 };
 
 #define	FBC_WRITE(sc,r,v) \
-- 
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