patch-2.1.16 linux/drivers/sbus/char/cg_common.h

• Lines: 29
• Date: Fri Dec 13 11:37:32 1996
• Orig file: v2.1.15/linux/drivers/sbus/char/cg_common.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v2.1.15/linux/drivers/sbus/char/cg_common.h linux/drivers/sbus/char/cg_common.h
@@ -0,0 +1,28 @@
+/* sun_cg_common.h
+ * contains the definitions of the structures that various sun
+ * frame buffer can use to do console driver stuff.
+ * 
+ * This is not in sun_framebuffer.h because you may not want cgXX
+ * support so you wont require this.
+ *
+ */
+
+#define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2))     /* (x / 4) * 3 */
+#define BT_D4M4(x) ((x) & ~3)                           /* (x / 4) * 4 */
+
+#define D4M3(x) ((((x)>>2)<<1) + ((x)>>2))      /* (x/4)*3 */
+#define D4M4(x) ((x)&~0x3)                      /* (x/4)*4 */
+
+struct bt_regs {
+    volatile unsigned int addr;		  /* address register */
+    volatile unsigned int color_map;	  /* color map */
+    volatile unsigned int control;	  /* control register */
+    volatile unsigned int cursor;	  /* cursor map register */
+};
+
+/* The cg3 driver, obio space addresses for mapping the cg3 stuff */
+/* We put these constants here, because the cg14 driver initially will emulate a cg3 */
+#define CG3_REGS 0x400000
+#define CG3_RAM	 0x800000
+
+