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Paulius Zaleckas6acc81c2009-04-03 10:34:05 -03001/*
2 * Copyright (C) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
3 *
4 * Based on linux/arch/arm/lib/floppydma.S
5 * Copyright (C) 1995, 1996 Russell King
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#include <linux/linkage.h>
12#include <asm/assembler.h>
13
14 .text
15 .global mx1_camera_sof_fiq_end
16 .global mx1_camera_sof_fiq_start
17mx1_camera_sof_fiq_start:
18 @ enable dma
19 ldr r12, [r9]
20 orr r12, r12, #0x00000001
21 str r12, [r9]
22 @ unmask DMA interrupt
23 ldr r12, [r8]
24 bic r12, r12, r13
25 str r12, [r8]
26 @ disable SOF interrupt
27 ldr r12, [r10]
28 bic r12, r12, #0x00010000
29 str r12, [r10]
30 @ clear SOF flag
31 mov r12, #0x00010000
32 str r12, [r11]
33 @ return from FIQ
34 subs pc, lr, #4
35mx1_camera_sof_fiq_end: