patch-2.1.80 linux/arch/arm/lib/floppydma.S

• Lines: 58
• Date: Tue Jan 20 16:39:41 1998
• Orig file: v2.1.79/linux/arch/arm/lib/floppydma.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.79/linux/arch/arm/lib/floppydma.S linux/arch/arm/lib/floppydma.S
@@ -0,0 +1,57 @@
+/*
+ * linux/arch/arm/lib/floppydma.S
+ *
+ * Copyright (C) 1995, 1996 Russell King
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+		.text
+
+		.global	SYMBOL_NAME(floppy_fiqin_end)
+ENTRY(floppy_fiqin_start)
+		subs	r9, r9, #1
+		ldrgtb	r12, [r11, #-4]
+		ldrleb	r12, [r11], #0
+		strb	r12, [r10], #1
+		subs	pc, lr, #4
+SYMBOL_NAME(floppy_fiqin_end):
+
+		.global	SYMBOL_NAME(floppy_fiqout_end)
+ENTRY(floppy_fiqout_start)
+		subs	r9, r9, #1
+		ldrgeb	r12, [r10], #1
+		movlt	r12, #0
+		strleb	r12, [r11], #0
+		subles	pc, lr, #4
+		strb	r12, [r11, #-4]
+		subs	pc, lr, #4
+SYMBOL_NAME(floppy_fiqout_end):
+
+@ Params:
+@ r0 = length
+@ r1 = address
+@ r2 = floppy port
+@ Puts these into R9_fiq, R10_fiq, R11_fiq
+ENTRY(floppy_fiqsetup)
+		mov	ip, sp
+		stmfd	sp!, {fp, ip, lr, pc}
+		sub	fp, ip, #4
+		MODE(r3,ip,I_BIT|F_BIT|DEFAULT_FIQ)	@ disable FIQs, IRQs, FIQ mode
+		mov	r0, r0
+		mov	r9, r0
+		mov	r10, r1
+		mov	r11, r2
+		RESTOREMODE(r3)				@ back to normal
+		mov	r0, r0
+		LOADREGS(ea,fp,{fp, sp, pc})
+
+ENTRY(floppy_fiqresidual)
+		mov	ip, sp
+		stmfd	sp!, {fp, ip, lr, pc}
+		sub	fp, ip, #4
+		MODE(r3,ip,I_BIT|F_BIT|DEFAULT_FIQ)	@ disable FIQs, IRQs, FIQ mode
+		mov	r0, r0
+		mov	r0, r9
+		RESTOREMODE(r3)
+		mov	r0, r0
+		LOADREGS(ea,fp,{fp, sp, pc})