mirror of https://gitee.com/openkylin/linux.git
36 lines
880 B
ArmAsm
36 lines
880 B
ArmAsm
|
/*
|
||
|
|
* Copyright (C) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
|
||
|
|
*
|
||
|
|
* Based on linux/arch/arm/lib/floppydma.S
|
||
|
|
* Copyright (C) 1995, 1996 Russell King
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
#include <asm/assembler.h>
|
||
|
|
|
||
|
|
.text
|
||
|
|
.global mx1_camera_sof_fiq_end
|
||
|
|
.global mx1_camera_sof_fiq_start
|
||
|
|
mx1_camera_sof_fiq_start:
|
||
|
|
@ enable dma
|
||
|
|
ldr r12, [r9]
|
||
|
|
orr r12, r12, #0x00000001
|
||
|
|
str r12, [r9]
|
||
|
|
@ unmask DMA interrupt
|
||
|
|
ldr r12, [r8]
|
||
|
|
bic r12, r12, r13
|
||
|
|
str r12, [r8]
|
||
|
|
@ disable SOF interrupt
|
||
|
|
ldr r12, [r10]
|
||
|
|
bic r12, r12, #0x00010000
|
||
|
|
str r12, [r10]
|
||
|
|
@ clear SOF flag
|
||
|
|
mov r12, #0x00010000
|
||
|
|
str r12, [r11]
|
||
|
|
@ return from FIQ
|
||
|
|
subs pc, lr, #4
|
||
|
|
mx1_camera_sof_fiq_end:
|