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/*
* Copyright (c) 2011-2018 Magewell Electronics Co., Ltd. (Nanjing)
* All rights reserved.
* Author: Yong Deng <yong.deng@magewell.com>
*/
#ifndef __SUN6I_CSI_H__
#define __SUN6I_CSI_H__
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fwnode.h>
#include "sun6i_video.h"
struct sun6i_csi;
/**
* struct sun6i_csi_config - configs for sun6i csi
* @pixelformat: v4l2 pixel format (V4L2_PIX_FMT_*)
* @code: media bus format code (MEDIA_BUS_FMT_*)
* @field: used interlacing type (enum v4l2_field)
* @width: frame width
* @height: frame height
*/
struct sun6i_csi_config {
u32 pixelformat;
u32 code;
u32 field;
u32 width;
u32 height;
};
struct sun6i_csi {
struct device *dev;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_device v4l2_dev;
struct media_device media_dev;
struct v4l2_async_notifier notifier;
/* video port settings */
struct v4l2_fwnode_endpoint v4l2_ep;
struct sun6i_csi_config config;
struct sun6i_video video;
};
/**
* sun6i_csi_is_format_supported() - check if the format supported by csi
* @csi: pointer to the csi
* @pixformat: v4l2 pixel format (V4L2_PIX_FMT_*)
* @mbus_code: media bus format code (MEDIA_BUS_FMT_*)
*/
bool sun6i_csi_is_format_supported(struct sun6i_csi *csi, u32 pixformat,
u32 mbus_code);
/**
* sun6i_csi_set_power() - power on/off the csi
* @csi: pointer to the csi
* @enable: on/off
*/
int sun6i_csi_set_power(struct sun6i_csi *csi, bool enable);
/**
* sun6i_csi_update_config() - update the csi register settings
* @csi: pointer to the csi
* @config: see struct sun6i_csi_config
*/
int sun6i_csi_update_config(struct sun6i_csi *csi,
struct sun6i_csi_config *config);
/**
* sun6i_csi_update_buf_addr() - update the csi frame buffer address
* @csi: pointer to the csi
* @addr: frame buffer's physical address
*/
void sun6i_csi_update_buf_addr(struct sun6i_csi *csi, dma_addr_t addr);
/**
* sun6i_csi_set_stream() - start/stop csi streaming
* @csi: pointer to the csi
* @enable: start/stop
*/
void sun6i_csi_set_stream(struct sun6i_csi *csi, bool enable);
/* get bpp form v4l2 pixformat */
static inline int sun6i_csi_get_bpp(unsigned int pixformat)
{
switch (pixformat) {
case V4L2_PIX_FMT_SBGGR8:
case V4L2_PIX_FMT_SGBRG8:
case V4L2_PIX_FMT_SGRBG8:
case V4L2_PIX_FMT_SRGGB8:
case V4L2_PIX_FMT_JPEG:
return 8;
case V4L2_PIX_FMT_SBGGR10:
case V4L2_PIX_FMT_SGBRG10:
case V4L2_PIX_FMT_SGRBG10:
case V4L2_PIX_FMT_SRGGB10:
return 10;
case V4L2_PIX_FMT_SBGGR12:
case V4L2_PIX_FMT_SGBRG12:
case V4L2_PIX_FMT_SGRBG12:
case V4L2_PIX_FMT_SRGGB12:
case V4L2_PIX_FMT_HM12:
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
return 12;
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_VYUY:
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
case V4L2_PIX_FMT_YUV422P:
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_RGB565X:
return 16;
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_BGR24:
return 24;
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_BGR32:
return 32;
default:
WARN(1, "Unsupported pixformat: 0x%x\n", pixformat);
break;
}
return 0;
}
#endif /* __SUN6I_CSI_H__ */
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