[PATCH] fbdev driver for S3 Trio/Virge

Add a driver for S3 Trio / S3 Virge.  Driver is tested with most versions
of S3 Trio and with S3 Virge/DX, on i386.

(akpm: We kind-of have support for this hardware already, but...

virgefb.c
  - amiga/zorro specific,
  - broken (according to Kconfig),
  - uses obsolete/nonexistent interface (struct display_switch)
  - recent Adrian Bunk's patch removes this driver

S3triofb.c
  - ppc/openfirmware specific
  - minimal functionality
  - broken (according to Kconfig),
  - uses obsolete/nonexistent interface (struct display_switch)
)

Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Cc: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 64177ec9a019..9402dec393ac 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -49,6 +49,13 @@
 #define FB_AUX_TEXT_S3_MMIO     2       /* S3 MMIO fasttext */
 #define FB_AUX_TEXT_MGA_STEP16  3       /* MGA Millenium I: text, attr, 14 reserved bytes */
 #define FB_AUX_TEXT_MGA_STEP8   4       /* other MGAs:      text, attr,  6 reserved bytes */
+#define FB_AUX_TEXT_SVGA_GROUP  8       /* 8-15: SVGA tileblit compatible modes */
+#define FB_AUX_TEXT_SVGA_MASK   7       /* lower three bits says step */
+#define FB_AUX_TEXT_SVGA_STEP2  8       /* SVGA text mode:  text, attr */
+#define FB_AUX_TEXT_SVGA_STEP4  9       /* SVGA text mode:  text, attr,  2 reserved bytes */
+#define FB_AUX_TEXT_SVGA_STEP8  10      /* SVGA text mode:  text, attr,  6 reserved bytes */
+#define FB_AUX_TEXT_SVGA_STEP16 11      /* SVGA text mode:  text, attr, 14 reserved bytes */
+#define FB_AUX_TEXT_SVGA_LAST   15      /* reserved up to 15 */
 
 #define FB_AUX_VGA_PLANES_VGA4          0       /* 16 color planes (EGA/VGA) */
 #define FB_AUX_VGA_PLANES_CFB4          1       /* CFB4 in planes (VGA) */