Fixes problem with the mouse cursor color on the i810.

Notes:
Mon Dec 12 07:20:07 EST 2005 rsc
    Thanks.  Glad you figured it out.
    


Reference: /n/sources/patch/applied/i810-cursor
Date: Mon Dec 12 00:58:54 CET 2005
Reviewed-by: rsc

--- /sys/src/cmd/aux/vga/i81x.c	Mon Dec 12 00:56:35 2005
+++ /sys/src/cmd/aux/vga/i81x.c	Mon Dec 12 00:56:31 2005
@@ -314,6 +314,7 @@
 	int i;
 	ulong *rp;
 	I81x *i81x;
+	char *p;
 
 	i81x = vga->private;
 
@@ -337,6 +338,20 @@
 		*rp++ = i81x->lcd[i];
 	/* set cursor, graphic mode */
 	rp = (ulong*)(i81x->mmio+0x70008);
+	*rp = i81x->pixconf | (1<<8);
+
+	p = (char *)(i81x->mmio+0x3c6);		/* DACMASK */
+	*p = 0xff;
+	p = (char *)(i81x->mmio+0x3c8);		/* DACWX */
+	*p = 0x04;
+	p = (char *)(i81x->mmio+0x3c9);		/* DACDATA */
+	*p = 0xff;
+	*p = 0xff;
+	*p = 0xff;
+	*p = 0x00;
+	*p = 0x00;
+	*p = 0x00;
+
 	*rp = i81x->pixconf;
 
 	ctlr->flag |= Fload;