V4L/DVB (8342): sh_mobile_ceu_camera: Add SuperH Mobile CEU driver V3 (0d3244d6) · Commits · 戴 / test

drivers/media/video/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -969,4 +969,12 @@ config VIDEO_PXA27x
		---help---
		This is a v4l2 driver for the PXA27x Quick Capture Interface

		config VIDEO_SH_MOBILE_CEU
		tristate "SuperH Mobile CEU Interface driver"
		depends on VIDEO_DEV
		select SOC_CAMERA
		select VIDEOBUF_DMA_CONTIG
		---help---
		This is a v4l2 driver for the SuperH Mobile CEU Interface

		endif # VIDEO_CAPTURE_DRIVERS

drivers/media/video/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -133,6 +133,7 @@ obj-$(CONFIG_VIDEO_VIVI) += vivi.o
		obj-$(CONFIG_VIDEO_CX23885) += cx23885/

		obj-$(CONFIG_VIDEO_PXA27x) += pxa_camera.o
		obj-$(CONFIG_VIDEO_SH_MOBILE_CEU) += sh_mobile_ceu_camera.o
		obj-$(CONFIG_SOC_CAMERA) += soc_camera.o
		obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o
		obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o

drivers/media/video/sh_mobile_ceu_camera.c

0 → 100644

+657 −0

Original line number	Diff line number	Diff line
		/*
		* V4L2 Driver for SuperH Mobile CEU interface
		*
		* Copyright (C) 2008 Magnus Damm
		*
		* Based on V4L2 Driver for PXA camera host - "pxa_camera.c",
		*
		* Copyright (C) 2006, Sascha Hauer, Pengutronix
		* 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 as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*/

		#include <linux/init.h>
		#include <linux/module.h>
		#include <linux/io.h>
		#include <linux/delay.h>
		#include <linux/dma-mapping.h>
		#include <linux/errno.h>
		#include <linux/fs.h>
		#include <linux/interrupt.h>
		#include <linux/kernel.h>
		#include <linux/mm.h>
		#include <linux/moduleparam.h>
		#include <linux/time.h>
		#include <linux/version.h>
		#include <linux/device.h>
		#include <linux/platform_device.h>
		#include <linux/mutex.h>
		#include <linux/videodev2.h>

		#include <media/v4l2-common.h>
		#include <media/v4l2-dev.h>
		#include <media/soc_camera.h>
		#include <media/sh_mobile_ceu.h>
		#include <media/videobuf-dma-contig.h>

		/* register offsets for sh7722 / sh7723 */

		#define CAPSR 0x00
		#define CAPCR 0x04
		#define CAMCR 0x08
		#define CMCYR 0x0c
		#define CAMOR 0x10
		#define CAPWR 0x14
		#define CAIFR 0x18
		#define CSTCR 0x20 /* not on sh7723 */
		#define CSECR 0x24 /* not on sh7723 */
		#define CRCNTR 0x28
		#define CRCMPR 0x2c
		#define CFLCR 0x30
		#define CFSZR 0x34
		#define CDWDR 0x38
		#define CDAYR 0x3c
		#define CDACR 0x40
		#define CDBYR 0x44
		#define CDBCR 0x48
		#define CBDSR 0x4c
		#define CFWCR 0x5c
		#define CLFCR 0x60
		#define CDOCR 0x64
		#define CDDCR 0x68
		#define CDDAR 0x6c
		#define CEIER 0x70
		#define CETCR 0x74
		#define CSTSR 0x7c
		#define CSRTR 0x80
		#define CDSSR 0x84
		#define CDAYR2 0x90
		#define CDACR2 0x94
		#define CDBYR2 0x98
		#define CDBCR2 0x9c

		static DEFINE_MUTEX(camera_lock);

		/* per video frame buffer */
		struct sh_mobile_ceu_buffer {
		struct videobuf_buffer vb; /* v4l buffer must be first */
		const struct soc_camera_data_format *fmt;
		};

		struct sh_mobile_ceu_dev {
		struct device *dev;
		struct soc_camera_host ici;
		struct soc_camera_device *icd;

		unsigned int irq;
		void __iomem *base;
		unsigned long video_limit;

		spinlock_t lock;
		struct list_head capture;
		struct videobuf_buffer *active;

		struct sh_mobile_ceu_info *pdata;
		};

		static void ceu_write(struct sh_mobile_ceu_dev *priv,
		unsigned long reg_offs, unsigned long data)
		{
		iowrite32(data, priv->base + reg_offs);
		}

		static unsigned long ceu_read(struct sh_mobile_ceu_dev *priv,
		unsigned long reg_offs)
		{
		return ioread32(priv->base + reg_offs);
		}

		/*
		* Videobuf operations
		*/
		static int sh_mobile_ceu_videobuf_setup(struct videobuf_queue *vq,
		unsigned int *count,
		unsigned int *size)
		{
		struct soc_camera_device *icd = vq->priv_data;
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;
		int bytes_per_pixel = (icd->current_fmt->depth + 7) >> 3;

		size = PAGE_ALIGN(icd->width icd->height * bytes_per_pixel);

		if (0 == *count)
		*count = 2;

		if (pcdev->video_limit) {
		while (size *count > pcdev->video_limit)
		(*count)--;
		}

		dev_dbg(&icd->dev, "count=%d, size=%d\n", count, size);

		return 0;
		}

		static void free_buffer(struct videobuf_queue *vq,
		struct sh_mobile_ceu_buffer *buf)
		{
		struct soc_camera_device *icd = vq->priv_data;

		dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
		&buf->vb, buf->vb.baddr, buf->vb.bsize);

		if (in_interrupt())
		BUG();

		videobuf_dma_contig_free(vq, &buf->vb);
		dev_dbg(&icd->dev, "%s freed\n", __func__);
		buf->vb.state = VIDEOBUF_NEEDS_INIT;
		}

		static void sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
		{
		ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) & ~1);
		ceu_write(pcdev, CETCR, ~ceu_read(pcdev, CETCR) & 0x0317f313);
		ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) \| 1);

		ceu_write(pcdev, CAPCR, ceu_read(pcdev, CAPCR) & ~0x10000);

		ceu_write(pcdev, CETCR, 0x0317f313 ^ 0x10);

		if (pcdev->active) {
		ceu_write(pcdev, CDAYR, videobuf_to_dma_contig(pcdev->active));
		ceu_write(pcdev, CAPSR, 0x1); /* start capture */
		}
		}

		static int sh_mobile_ceu_videobuf_prepare(struct videobuf_queue *vq,
		struct videobuf_buffer *vb,
		enum v4l2_field field)
		{
		struct soc_camera_device *icd = vq->priv_data;
		struct sh_mobile_ceu_buffer *buf;
		int ret;

		buf = container_of(vb, struct sh_mobile_ceu_buffer, vb);

		dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
		vb, vb->baddr, vb->bsize);

		/* Added list head initialization on alloc */
		WARN_ON(!list_empty(&vb->queue));

		#ifdef DEBUG
		/* This can be useful if you want to see if we actually fill
		* the buffer with something */
		memset((void *)vb->baddr, 0xaa, vb->bsize);
		#endif

		BUG_ON(NULL == icd->current_fmt);

		if (buf->fmt != icd->current_fmt \|\|
		vb->width != icd->width \|\|
		vb->height != icd->height \|\|
		vb->field != field) {
		buf->fmt = icd->current_fmt;
		vb->width = icd->width;
		vb->height = icd->height;
		vb->field = field;
		vb->state = VIDEOBUF_NEEDS_INIT;
		}

		vb->size = vb->width * vb->height * ((buf->fmt->depth + 7) >> 3);
		if (0 != vb->baddr && vb->bsize < vb->size) {
		ret = -EINVAL;
		goto out;
		}

		if (vb->state == VIDEOBUF_NEEDS_INIT) {
		ret = videobuf_iolock(vq, vb, NULL);
		if (ret)
		goto fail;
		vb->state = VIDEOBUF_PREPARED;
		}

		return 0;
		fail:
		free_buffer(vq, buf);
		out:
		return ret;
		}

		static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq,
		struct videobuf_buffer *vb)
		{
		struct soc_camera_device *icd = vq->priv_data;
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;
		unsigned long flags;

		dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
		vb, vb->baddr, vb->bsize);

		vb->state = VIDEOBUF_ACTIVE;
		spin_lock_irqsave(&pcdev->lock, flags);
		list_add_tail(&vb->queue, &pcdev->capture);

		if (!pcdev->active) {
		pcdev->active = vb;
		sh_mobile_ceu_capture(pcdev);
		}

		spin_unlock_irqrestore(&pcdev->lock, flags);
		}

		static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq,
		struct videobuf_buffer *vb)
		{
		free_buffer(vq, container_of(vb, struct sh_mobile_ceu_buffer, vb));
		}

		static struct videobuf_queue_ops sh_mobile_ceu_videobuf_ops = {
		.buf_setup = sh_mobile_ceu_videobuf_setup,
		.buf_prepare = sh_mobile_ceu_videobuf_prepare,
		.buf_queue = sh_mobile_ceu_videobuf_queue,
		.buf_release = sh_mobile_ceu_videobuf_release,
		};

		static irqreturn_t sh_mobile_ceu_irq(int irq, void *data)
		{
		struct sh_mobile_ceu_dev *pcdev = data;
		struct videobuf_buffer *vb;
		unsigned long flags;

		spin_lock_irqsave(&pcdev->lock, flags);

		vb = pcdev->active;
		list_del_init(&vb->queue);

		if (!list_empty(&pcdev->capture))
		pcdev->active = list_entry(pcdev->capture.next,
		struct videobuf_buffer, queue);
		else
		pcdev->active = NULL;

		sh_mobile_ceu_capture(pcdev);

		vb->state = VIDEOBUF_DONE;
		do_gettimeofday(&vb->ts);
		vb->field_count++;
		wake_up(&vb->done);
		spin_unlock_irqrestore(&pcdev->lock, flags);

		return IRQ_HANDLED;
		}

		static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
		{
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;
		int ret = -EBUSY;

		mutex_lock(&camera_lock);

		if (pcdev->icd)
		goto err;

		dev_info(&icd->dev,
		"SuperH Mobile CEU driver attached to camera %d\n",
		icd->devnum);

		if (pcdev->pdata->enable_camera)
		pcdev->pdata->enable_camera();

		ret = icd->ops->init(icd);
		if (ret)
		goto err;

		ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
		while (ceu_read(pcdev, CSTSR) & 1)
		msleep(1);

		pcdev->icd = icd;
		err:
		mutex_unlock(&camera_lock);

		return ret;
		}

		static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
		{
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;

		BUG_ON(icd != pcdev->icd);

		/* disable capture, disable interrupts */
		ceu_write(pcdev, CEIER, 0);
		ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
		icd->ops->release(icd);
		if (pcdev->pdata->disable_camera)
		pcdev->pdata->disable_camera();

		dev_info(&icd->dev,
		"SuperH Mobile CEU driver detached from camera %d\n",
		icd->devnum);

		pcdev->icd = NULL;
		}

		static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
		__u32 pixfmt)
		{
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;
		int ret, buswidth, width, cfszr_width, cdwdr_width;
		unsigned long camera_flags, common_flags, value;

		camera_flags = icd->ops->query_bus_param(icd);
		common_flags = soc_camera_bus_param_compatible(camera_flags,
		pcdev->pdata->flags);
		if (!common_flags)
		return -EINVAL;

		ret = icd->ops->set_bus_param(icd, common_flags);
		if (ret < 0)
		return ret;

		switch (common_flags & SOCAM_DATAWIDTH_MASK) {
		case SOCAM_DATAWIDTH_8:
		buswidth = 8;
		break;
		case SOCAM_DATAWIDTH_16:
		buswidth = 16;
		break;
		default:
		return -EINVAL;
		}

		ceu_write(pcdev, CRCNTR, 0);
		ceu_write(pcdev, CRCMPR, 0);

		value = 0x00000010;
		value \|= (common_flags & SOCAM_VSYNC_ACTIVE_LOW) ? (1 << 1) : 0;
		value \|= (common_flags & SOCAM_HSYNC_ACTIVE_LOW) ? (1 << 0) : 0;
		value \|= (buswidth == 16) ? (1 << 12) : 0;
		ceu_write(pcdev, CAMCR, value);

		ceu_write(pcdev, CAPCR, 0x00300000);
		ceu_write(pcdev, CAIFR, 0);

		mdelay(1);

		width = icd->width * (icd->current_fmt->depth / 8);
		width = (buswidth == 16) ? width / 2 : width;
		cfszr_width = (buswidth == 8) ? width / 2 : width;
		cdwdr_width = (buswidth == 16) ? width * 2 : width;

		ceu_write(pcdev, CAMOR, 0);
		ceu_write(pcdev, CAPWR, (icd->height << 16) \| width);
		ceu_write(pcdev, CFLCR, 0); /* data fetch mode - no scaling */
		ceu_write(pcdev, CFSZR, (icd->height << 16) \| cfszr_width);
		ceu_write(pcdev, CLFCR, 0); /* data fetch mode - no lowpass filter */
		ceu_write(pcdev, CDOCR, 0x00000016);

		ceu_write(pcdev, CDWDR, cdwdr_width);
		ceu_write(pcdev, CFWCR, 0); /* keep "datafetch firewall" disabled */

		/* not in bundle mode: skip CBDSR, CDAYR2, CDACR2, CDBYR2, CDBCR2 */
		/* in data fetch mode: no need for CDACR, CDBYR, CDBCR */

		return 0;
		}

		static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
		__u32 pixfmt)
		{
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;
		unsigned long camera_flags, common_flags;

		camera_flags = icd->ops->query_bus_param(icd);
		common_flags = soc_camera_bus_param_compatible(camera_flags,
		pcdev->pdata->flags);
		if (!common_flags)
		return -EINVAL;

		return 0;
		}

		static int sh_mobile_ceu_set_fmt_cap(struct soc_camera_device *icd,
		__u32 pixfmt, struct v4l2_rect *rect)
		{
		return icd->ops->set_fmt_cap(icd, pixfmt, rect);
		}

		static int sh_mobile_ceu_try_fmt_cap(struct soc_camera_device *icd,
		struct v4l2_format *f)
		{
		/* FIXME: calculate using depth and bus width */

		if (f->fmt.pix.height < 4)
		f->fmt.pix.height = 4;
		if (f->fmt.pix.height > 1920)
		f->fmt.pix.height = 1920;
		if (f->fmt.pix.width < 2)
		f->fmt.pix.width = 2;
		if (f->fmt.pix.width > 2560)
		f->fmt.pix.width = 2560;
		f->fmt.pix.width &= ~0x01;
		f->fmt.pix.height &= ~0x03;

		/* limit to sensor capabilities */
		return icd->ops->try_fmt_cap(icd, f);
		}

		static int sh_mobile_ceu_reqbufs(struct soc_camera_file *icf,
		struct v4l2_requestbuffers *p)
		{
		int i;

		/* This is for locking debugging only. I removed spinlocks and now I
		* check whether .prepare is ever called on a linked buffer, or whether
		* a dma IRQ can occur for an in-work or unlinked buffer. Until now
		* it hadn't triggered */
		for (i = 0; i < p->count; i++) {
		struct sh_mobile_ceu_buffer *buf;

		buf = container_of(icf->vb_vidq.bufs[i],
		struct sh_mobile_ceu_buffer, vb);
		INIT_LIST_HEAD(&buf->vb.queue);
		}

		return 0;
		}

		static unsigned int sh_mobile_ceu_poll(struct file file, poll_table pt)
		{
		struct soc_camera_file *icf = file->private_data;
		struct sh_mobile_ceu_buffer *buf;

		buf = list_entry(icf->vb_vidq.stream.next,
		struct sh_mobile_ceu_buffer, vb.stream);

		poll_wait(file, &buf->vb.done, pt);

		if (buf->vb.state == VIDEOBUF_DONE \|\|
		buf->vb.state == VIDEOBUF_ERROR)
		return POLLIN\|POLLRDNORM;

		return 0;
		}

		static int sh_mobile_ceu_querycap(struct soc_camera_host *ici,
		struct v4l2_capability *cap)
		{
		strlcpy(cap->card, "SuperH_Mobile_CEU", sizeof(cap->card));
		cap->version = KERNEL_VERSION(0, 0, 5);
		cap->capabilities = V4L2_CAP_VIDEO_CAPTURE \| V4L2_CAP_STREAMING;
		return 0;
		}

		static void sh_mobile_ceu_init_videobuf(struct videobuf_queue *q,
		struct soc_camera_device *icd)
		{
		struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
		struct sh_mobile_ceu_dev *pcdev = ici->priv;

		videobuf_queue_dma_contig_init(q,
		&sh_mobile_ceu_videobuf_ops,
		&ici->dev, &pcdev->lock,
		V4L2_BUF_TYPE_VIDEO_CAPTURE,
		V4L2_FIELD_NONE,
		sizeof(struct sh_mobile_ceu_buffer),
		icd);
		}

		static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
		.owner = THIS_MODULE,
		.add = sh_mobile_ceu_add_device,
		.remove = sh_mobile_ceu_remove_device,
		.set_fmt_cap = sh_mobile_ceu_set_fmt_cap,
		.try_fmt_cap = sh_mobile_ceu_try_fmt_cap,
		.reqbufs = sh_mobile_ceu_reqbufs,
		.poll = sh_mobile_ceu_poll,
		.querycap = sh_mobile_ceu_querycap,
		.try_bus_param = sh_mobile_ceu_try_bus_param,
		.set_bus_param = sh_mobile_ceu_set_bus_param,
		.init_videobuf = sh_mobile_ceu_init_videobuf,
		};

		static int sh_mobile_ceu_probe(struct platform_device *pdev)
		{
		struct sh_mobile_ceu_dev *pcdev;
		struct resource *res;
		void __iomem *base;
		unsigned int irq;
		int err = 0;

		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		irq = platform_get_irq(pdev, 0);
		if (!res \|\| !irq) {
		dev_err(&pdev->dev, "Not enough CEU platform resources.\n");
		err = -ENODEV;
		goto exit;
		}

		pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
		if (!pcdev) {
		dev_err(&pdev->dev, "Could not allocate pcdev\n");
		err = -ENOMEM;
		goto exit;
		}

		platform_set_drvdata(pdev, pcdev);
		INIT_LIST_HEAD(&pcdev->capture);
		spin_lock_init(&pcdev->lock);

		pcdev->pdata = pdev->dev.platform_data;
		if (!pcdev->pdata) {
		err = -EINVAL;
		dev_err(&pdev->dev, "CEU platform data not set.\n");
		goto exit_kfree;
		}

		base = ioremap_nocache(res->start, res->end - res->start + 1);
		if (!base) {
		err = -ENXIO;
		dev_err(&pdev->dev, "Unable to ioremap CEU registers.\n");
		goto exit_kfree;
		}

		pcdev->irq = irq;
		pcdev->base = base;
		pcdev->video_limit = 0; /* only enabled if second resource exists */
		pcdev->dev = &pdev->dev;

		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
		if (res) {
		err = dma_declare_coherent_memory(&pdev->dev, res->start,
		res->start,
		(res->end - res->start) + 1,
		DMA_MEMORY_MAP \|
		DMA_MEMORY_EXCLUSIVE);
		if (!err) {
		dev_err(&pdev->dev, "Unable to declare CEU memory.\n");
		err = -ENXIO;
		goto exit_iounmap;
		}

		pcdev->video_limit = (res->end - res->start) + 1;
		}

		/* request irq */
		err = request_irq(pcdev->irq, sh_mobile_ceu_irq, IRQF_DISABLED,
		pdev->dev.bus_id, pcdev);
		if (err) {
		dev_err(&pdev->dev, "Unable to register CEU interrupt.\n");
		goto exit_release_mem;
		}

		pcdev->ici.priv = pcdev;
		pcdev->ici.dev.parent = &pdev->dev;
		pcdev->ici.nr = pdev->id;
		pcdev->ici.drv_name = pdev->dev.bus_id,
		pcdev->ici.ops = &sh_mobile_ceu_host_ops,

		err = soc_camera_host_register(&pcdev->ici);
		if (err)
		goto exit_free_irq;

		return 0;

		exit_free_irq:
		free_irq(pcdev->irq, pcdev);
		exit_release_mem:
		if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
		dma_release_declared_memory(&pdev->dev);
		exit_iounmap:
		iounmap(base);
		exit_kfree:
		kfree(pcdev);
		exit:
		return err;
		}

		static int sh_mobile_ceu_remove(struct platform_device *pdev)
		{
		struct sh_mobile_ceu_dev *pcdev = platform_get_drvdata(pdev);

		soc_camera_host_unregister(&pcdev->ici);
		free_irq(pcdev->irq, pcdev);
		if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
		dma_release_declared_memory(&pdev->dev);
		iounmap(pcdev->base);
		kfree(pcdev);
		return 0;
		}

		static struct platform_driver sh_mobile_ceu_driver = {
		.driver = {
		.name = "sh_mobile_ceu",
		},
		.probe = sh_mobile_ceu_probe,
		.remove = sh_mobile_ceu_remove,
		};

		static int __init sh_mobile_ceu_init(void)
		{
		return platform_driver_register(&sh_mobile_ceu_driver);
		}

		static void __exit sh_mobile_ceu_exit(void)
		{
		return platform_driver_unregister(&sh_mobile_ceu_driver);
		}

		module_init(sh_mobile_ceu_init);
		module_exit(sh_mobile_ceu_exit);

		MODULE_DESCRIPTION("SuperH Mobile CEU driver");
		MODULE_AUTHOR("Magnus Damm");
		MODULE_LICENSE("GPL");

include/media/sh_mobile_ceu.h

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+12 −0

Original line number	Diff line number	Diff line
		#ifndef __ASM_SH_MOBILE_CEU_H__
		#define __ASM_SH_MOBILE_CEU_H__

		#include <media/soc_camera.h>

		struct sh_mobile_ceu_info {
		unsigned long flags; /* SOCAM_... */
		void (*enable_camera)(void);
		void (*disable_camera)(void);
		};

		#endif /* __ASM_SH_MOBILE_CEU_H__ */

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