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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* 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-device.h>
#include <media/v4l2-fwnode.h>
#include <media/videobuf2-v4l2.h>
#include "sun6i_csi_bridge.h"
#include "sun6i_csi_capture.h"
#define SUN6I_CSI_NAME "sun6i-csi"
#define SUN6I_CSI_DESCRIPTION "Allwinner A31 CSI Device"
enum sun6i_csi_port {
SUN6I_CSI_PORT_PARALLEL = 0,
};
struct sun6i_csi_buffer {
struct vb2_v4l2_buffer v4l2_buffer;
struct list_head list;
};
struct sun6i_csi_v4l2 {
struct v4l2_device v4l2_dev;
struct media_device media_dev;
};
struct sun6i_csi_device {
struct device *dev;
struct sun6i_csi_v4l2 v4l2;
struct sun6i_csi_bridge bridge;
struct sun6i_csi_capture capture;
struct regmap *regmap;
struct clk *clock_mod;
struct clk *clock_ram;
struct reset_control *reset;
};
struct sun6i_csi_variant {
unsigned long clock_mod_rate;
};
/**
* sun6i_csi_is_format_supported() - check if the format supported by csi
* @csi_dev: pointer to the csi device
* @pixformat: v4l2 pixel format (V4L2_PIX_FMT_*)
* @mbus_code: media bus format code (MEDIA_BUS_FMT_*)
*
* Return: true if format is supported, false otherwise.
*/
bool sun6i_csi_is_format_supported(struct sun6i_csi_device *csi_dev,
u32 pixformat, u32 mbus_code);
/* 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_NV12_16L16:
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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