Cosmetic changes.

svn path=/head/; revision=53207

sys/boot/pc98/libpc98/biosdisk.c

@@ -227,6 +227,7 @@ bd_init(void)
 static int
 bd_int13probe(struct bdinfo *bd)
 {
+
 #ifdef PC98
     int addr;
     if (bd->bd_flags & BD_FLOPPY){
@@ -535,6 +536,7 @@ bd_opendisk(struct open_disk **odp, struct i386_devdesc *dev)
 	od->od_boff = sector;		/* no partition, must be after the slice */
 	DEBUG("opening raw slice");
     } else {
+	
 	if (bd_read(od, sector + LABELSECTOR, 1, buf)) {
 	    DEBUG("error reading disklabel");
 	    error = EIO;
@@ -938,6 +940,37 @@ bd_getgeom(struct open_disk *od)
     return(0);
 }
 
+#ifndef PC98
+/*
+ * Return the BIOS geometry of a given "fixed drive" in a format
+ * suitable for the legacy bootinfo structure.  Since the kernel is
+ * expecting raw int 0x13/0x8 values for N_BIOS_GEOM drives, we
+ * prefer to get the information directly, rather than rely on being
+ * able to put it together from information already maintained for
+ * different purposes and for a probably different number of drives.
+ *
+ * For valid drives, the geometry is expected in the format (31..0)
+ * "000000cc cccccccc hhhhhhhh 00ssssss"; and invalid drives are
+ * indicated by returning the geometry of a "1.2M" PC-format floppy
+ * disk.  And, incidentally, what is returned is not the geometry as
+ * such but the highest valid cylinder, head, and sector numbers.
+ */
+u_int32_t
+bd_getbigeom(int bunit)
+{
+
+    v86.ctl = V86_FLAGS;
+    v86.addr = 0x13;
+    v86.eax = 0x800;
+    v86.edx = 0x80 + bunit;
+    v86int();
+    if (v86.efl & 0x1)
+	return 0x4f010f;
+    return ((v86.ecx & 0xc0) << 18) | ((v86.ecx & 0xff00) << 8) |
+	   (v86.edx & 0xff00) | (v86.ecx & 0x3f);
+}
+#endif
+
 /*
  * Return a suitable dev_t value for (dev).
  *

sys/boot/pc98/libpc98/biosmem.c

@@ -1,5 +1,7 @@
 /*
  * mjs copyright
+ *
+ * $FreeBSD$
  */
 
 /*
@@ -51,6 +53,7 @@ getextmem(void)
     v86int();
     extkb = v86.eax & 0xffff;
 #endif
+
     /* Set memtop to actual top or 16M, whicheve is less */
     memtop = min((0x100000 + (extkb * 1024)), (16 * 1024 * 1024));
     

sys/boot/pc98/libpc98/bootinfo.c

@@ -242,13 +242,10 @@ bi_load(char *args, int *howtop, int *bootdevp, vm_offset_t *bip)
     struct i386_devdesc		*rootdev;
     vm_offset_t			addr, bootinfo_addr;
     char			*rootdevname;
-    int				bootdevnr;
+    int				bootdevnr, i;
     u_int			pad;
     char			*kernelname;
     const char			*kernelpath;
-#ifdef PC98
-    int				i;
-#endif
 
     *howtop = bi_getboothowto(args);
 
@@ -289,10 +286,12 @@ bi_load(char *args, int *howtop, int *bootdevp, vm_offset_t *bip)
     bi.bi_kernelname = 0;		/* XXX char * -> kernel name */
     bi.bi_nfs_diskless = 0;		/* struct nfs_diskless * */
     bi.bi_n_bios_used = 0;		/* XXX would have to hook biosdisk driver for these */
-    /* bi.bi_bios_geom[] */
 #ifdef PC98
     for(i = 0; i < N_BIOS_GEOM; i++)
 	bi.bi_bios_geom[i] = initial_bootinfo->bi_bios_geom[i];
+#else
+    for (i = 0; i < N_BIOS_GEOM; i++)
+        bi.bi_bios_geom[i] = bd_getbigeom(i);
 #endif
     bi.bi_size = sizeof(bi);
     bi.bi_memsizes_valid = 1;

sys/boot/pc98/libpc98/time.c

@@ -1,5 +1,7 @@
 /*
  * mjs copyright
+ *
+ * $FreeBSD$
  */
 
 #include <stand.h>
@@ -21,6 +23,7 @@ time(time_t *t)
 {
     static time_t	lasttime, now;
     int			hr, min, sec;
+    
 #ifdef PC98
     unsigned char	bios_time[6];
 #endif

sys/boot/pc98/libpc98/vidconsole.c

@@ -646,6 +646,7 @@ vidc_ischar(void)
 }
 
 #if KEYBOARD_PROBE
+
 #ifdef PC98
 static int
 probe_keyboard(void)