Add some patches to grub.

src/patches/grub-0.97-mactel-kbd.patch

@@ -0,0 +1,100 @@
+--- grub-0.97/stage2/asm.S.mactel-kbd	2006-06-12 17:00:10.000000000 -0400
++++ grub-0.97/stage2/asm.S	2006-06-12 17:03:38.000000000 -0400
+@@ -1651,7 +1651,30 @@
+ 	jnz	3f
+ 	ret
+ 
+-3:	/* use keyboard controller */
++3:	/*
++	* try to switch gateA20 using PORT92, the "Fast A20 and Init"
++	* register
++	*/
++	mov	$0x92, %dx
++	inb	%dx, %al
++	/* skip the port92 code if it's unimplemented (read returns 0xff) */
++	cmpb	$0xff, %al
++	jz	6f
++
++	/* set or clear bit1, the ALT_A20_GATE bit */
++	movb	4(%esp), %ah
++	testb	%ah, %ah
++	jz	4f
++	orb	$2, %al
++	jmp	5f
++4:	and	$0xfd, %al
++
++	/* clear the INIT_NOW bit; don't accidently reset the machine */
++5:	and	$0xfe, %al
++	outb	%al, %dx
++
++
++6:	/* use keyboard controller */
+ 	pushl	%eax
+ 
+ 	call    gloop1
+@@ -1661,9 +1684,12 @@
+ 
+ gloopint1:
+ 	inb	$K_STATUS
++	cmpb	$0xff, %al
++	jz	gloopint1_done
+ 	andb	$K_IBUF_FUL, %al
+ 	jnz	gloopint1
+ 
++gloopint1_done:
+ 	movb	$KB_OUTPUT_MASK, %al
+ 	cmpb	$0, 0x8(%esp)
+ 	jz	gdoit
+@@ -1684,6 +1710,8 @@
+ 
+ gloop1:
+ 	inb	$K_STATUS
++	cmpb	$0xff, %al
++	jz	gloop2ret
+ 	andb	$K_IBUF_FUL, %al
+ 	jnz	gloop1
+ 
+@@ -1994,8 +2022,25 @@
+ 	call	EXT_C(prot_to_real)
+ 	.code16
+ 
++.again:
++	mov	$0x11, %ah		/* poll kbd */
+ 	int	$0x16
+ 
++	jz	.again
++#if 0
++/* XXX handle serial here? -- pj */
++	jnz	.kbd
++#endif
++.kbd:
++	mov	$0x10, %ah
++	int	$0x16
++	cmp	$0xe0, %al
++	jnz	.not_ext
++	xor	%al, %al
++.not_ext:
++	and	%al, %al
++	jz	.func_key
++.func_key:
+ 	movw	%ax, %dx		/* real_to_prot uses %eax */
+ 	call	translate_keycode
+ 	call	remap_ascii_char
+@@ -2003,7 +2048,7 @@
+ 	DATA32	call	EXT_C(real_to_prot)
+ 	.code32
+ 
+-	movw	%dx, %ax
++	mov	%dx, %ax
+ 
+ 	pop	%ebp
+ 	ret
+@@ -2029,7 +2074,7 @@
+ 	call	EXT_C(prot_to_real)	/* enter real mode */
+ 	.code16
+ 
+-	movb	$0x1, %ah
++	movb	$0x11, %ah
+ 	int	$0x16
+ 
+ 	DATA32	jz	notpending