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6acc81c3 PZ |
1 | /* |
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 | |
17 | mx1_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 | |
35 | mx1_camera_sof_fiq_end: |