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author | Paulius Zaleckas <paulius.zaleckas@teltonika.lt> | 2009-04-03 10:34:05 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-04-06 21:43:58 -0300 |
commit | 6acc81c394393b853e731cc67f17ef277d521123 (patch) | |
tree | 62d2c852d4a8a63be7c552339774e5df2443ebb2 /arch | |
parent | b71df97a3ffdb2bfc286c3fa0c2b1a0aa3a6bf88 (diff) | |
download | kernel_samsung_smdk4412-6acc81c394393b853e731cc67f17ef277d521123.zip kernel_samsung_smdk4412-6acc81c394393b853e731cc67f17ef277d521123.tar.gz kernel_samsung_smdk4412-6acc81c394393b853e731cc67f17ef277d521123.tar.bz2 |
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: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mach-mx1/Makefile | 3 | ||||
-rw-r--r-- | arch/arm/mach-mx1/devices.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-mx1/ksym_mx1.c | 18 | ||||
-rw-r--r-- | arch/arm/mach-mx1/mx1_camera_fiq.S | 35 | ||||
-rw-r--r-- | arch/arm/plat-mxc/include/mach/memory.h | 8 | ||||
-rw-r--r-- | arch/arm/plat-mxc/include/mach/mx1_camera.h | 35 |
6 files changed, 100 insertions, 1 deletions
diff --git a/arch/arm/mach-mx1/Makefile b/arch/arm/mach-mx1/Makefile index 82f1309..7f86fe0 100644 --- a/arch/arm/mach-mx1/Makefile +++ b/arch/arm/mach-mx1/Makefile @@ -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 diff --git a/arch/arm/mach-mx1/devices.c b/arch/arm/mach-mx1/devices.c index 97f42d9..76d1ffb 100644 --- a/arch/arm/mach-mx1/devices.c +++ b/arch/arm/mach-mx1/devices.c @@ -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, diff --git a/arch/arm/mach-mx1/ksym_mx1.c b/arch/arm/mach-mx1/ksym_mx1.c new file mode 100644 index 0000000..b09ee12 --- /dev/null +++ b/arch/arm/mach-mx1/ksym_mx1.c @@ -0,0 +1,18 @@ +/* + * 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); diff --git a/arch/arm/mach-mx1/mx1_camera_fiq.S b/arch/arm/mach-mx1/mx1_camera_fiq.S new file mode 100644 index 0000000..9c69aa6 --- /dev/null +++ b/arch/arm/mach-mx1/mx1_camera_fiq.S @@ -0,0 +1,35 @@ +/* + * 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: diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h index e0783e6..eca37d0 100644 --- a/arch/arm/plat-mxc/include/mach/memory.h +++ b/arch/arm/plat-mxc/include/mach/memory.h @@ -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__ */ diff --git a/arch/arm/plat-mxc/include/mach/mx1_camera.h b/arch/arm/plat-mxc/include/mach/mx1_camera.h new file mode 100644 index 0000000..4fd6c70 --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/mx1_camera.h @@ -0,0 +1,35 @@ +/* + * mx1_camera.h - i.MX1/i.MXL camera driver header file + * + * Copyright (c) 2008, Paulius Zaleckas <paulius.zaleckas@teltonika.lt> + * Copyright (C) 2009, Darius Augulis <augulis.darius@gmail.com> + * + * Based on PXA camera.h file: + * Copyright (C) 2003, Intel Corporation + * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> + * + * 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. + */ + +#ifndef __ASM_ARCH_CAMERA_H_ +#define __ASM_ARCH_CAMERA_H_ + +#define MX1_CAMERA_DATA_HIGH 1 +#define MX1_CAMERA_PCLK_RISING 2 +#define MX1_CAMERA_VSYNC_HIGH 4 + +extern unsigned char mx1_camera_sof_fiq_start, mx1_camera_sof_fiq_end; + +/** + * struct mx1_camera_pdata - i.MX1/i.MXL camera platform data + * @mclk_10khz: master clock frequency in 10kHz units + * @flags: MX1 camera platform flags + */ +struct mx1_camera_pdata { + unsigned long mclk_10khz; + unsigned long flags; +}; + +#endif /* __ASM_ARCH_CAMERA_H_ */ |