Commit 6acc81c3 authored by Paulius Zaleckas's avatar Paulius Zaleckas Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (11350): Add camera (CSI) driver for MX1 



Add support for CMOS Sensor Interface on i.MX1 and i.MXL SoCs.

 create mode 100644 arch/arm/mach-mx1/ksym_mx1.c
 create mode 100644 arch/arm/mach-mx1/mx1_camera_fiq.S
 create mode 100644 arch/arm/plat-mxc/include/mach/mx1_camera.h
 create mode 100644 drivers/media/video/mx1_camera.c

Signed-off-by: default avatarPaulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: default avatarDarius Augulis <augulis.darius@gmail.com>
Acked-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent b71df97a

arch/arm/mach-mx1/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -6,6 +6,9 @@ 


obj-y			+= generic.o clock.o devices.o



# Support for CMOS sensor interface

obj-$(CONFIG_MX1_VIDEO)	+= ksym_mx1.o mx1_camera_fiq.o



# Specific board support

obj-$(CONFIG_ARCH_MX1ADS) += mx1ads.o

obj-$(CONFIG_MACH_SCB9328) += scb9328.o
 
 No newline at end of file

arch/arm/mach-mx1/devices.c

+1 −1
Original line number Diff line number Diff line
@@ -44,7 +44,7 @@ static struct resource imx_csi_resources[] = { 
static u64 imx_csi_dmamask = 0xffffffffUL;



struct platform_device imx_csi_device = {

	.name           = "imx-csi",

	.name           = "mx1-camera",

	.id             = 0, /* This is used to put cameras on this interface */

	.dev		= {

		.dma_mask = &imx_csi_dmamask,

arch/arm/mach-mx1/ksym_mx1.c

0 → 100644
+18 −0
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/*

 * Exported ksyms of ARCH_MX1

 *

 * Copyright (C) 2008, Darius Augulis <augulis.darius@gmail.com>

 *

 * 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/platform_device.h>

#include <linux/module.h>



#include <mach/mx1_camera.h>



/* IMX camera FIQ handler */

EXPORT_SYMBOL(mx1_camera_sof_fiq_start);

EXPORT_SYMBOL(mx1_camera_sof_fiq_end);

arch/arm/mach-mx1/mx1_camera_fiq.S

0 → 100644
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Original line number Diff line number Diff line 
/*

 *  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:

arch/arm/plat-mxc/include/mach/memory.h

+8 −0
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@@ -24,4 +24,12 @@ 
#define PHYS_OFFSET		UL(0x80000000)

#endif



#if defined(CONFIG_MX1_VIDEO)

/*

 * Increase size of DMA-consistent memory region.

 * This is required for i.MX camera driver to capture at least four VGA frames.

 */

#define CONSISTENT_DMA_SIZE SZ_4M

#endif /* CONFIG_MX1_VIDEO */



#endif /* __ASM_ARCH_MXC_MEMORY_H__ */

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