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kernel/linux-imx6_3.14.28/include/media/omap3isp.h 4.29 KB
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  /*
   * omap3isp.h
   *
   * TI OMAP3 ISP - Platform data
   *
   * Copyright (C) 2011 Nokia Corporation
   *
   * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   *	     Sakari Ailus <sakari.ailus@iki.fi>
   *
   * 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.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA
   */
  
  #ifndef __MEDIA_OMAP3ISP_H__
  #define __MEDIA_OMAP3ISP_H__
  
  struct i2c_board_info;
  struct isp_device;
  
  enum isp_interface_type {
  	ISP_INTERFACE_PARALLEL,
  	ISP_INTERFACE_CSI2A_PHY2,
  	ISP_INTERFACE_CCP2B_PHY1,
  	ISP_INTERFACE_CCP2B_PHY2,
  	ISP_INTERFACE_CSI2C_PHY1,
  };
  
  enum {
  	ISP_LANE_SHIFT_0 = 0,
  	ISP_LANE_SHIFT_2 = 1,
  	ISP_LANE_SHIFT_4 = 2,
  	ISP_LANE_SHIFT_6 = 3,
  };
  
  /**
   * struct isp_parallel_platform_data - Parallel interface platform data
   * @data_lane_shift: Data lane shifter
   *		ISP_LANE_SHIFT_0 - CAMEXT[13:0] -> CAM[13:0]
   *		ISP_LANE_SHIFT_2 - CAMEXT[13:2] -> CAM[11:0]
   *		ISP_LANE_SHIFT_4 - CAMEXT[13:4] -> CAM[9:0]
   *		ISP_LANE_SHIFT_6 - CAMEXT[13:6] -> CAM[7:0]
   * @clk_pol: Pixel clock polarity
   *		0 - Sample on rising edge, 1 - Sample on falling edge
   * @hs_pol: Horizontal synchronization polarity
   *		0 - Active high, 1 - Active low
   * @vs_pol: Vertical synchronization polarity
   *		0 - Active high, 1 - Active low
   * @data_pol: Data polarity
   *		0 - Normal, 1 - One's complement
   */
  struct isp_parallel_platform_data {
  	unsigned int data_lane_shift:2;
  	unsigned int clk_pol:1;
  	unsigned int hs_pol:1;
  	unsigned int vs_pol:1;
  	unsigned int data_pol:1;
  };
  
  enum {
  	ISP_CCP2_PHY_DATA_CLOCK = 0,
  	ISP_CCP2_PHY_DATA_STROBE = 1,
  };
  
  enum {
  	ISP_CCP2_MODE_MIPI = 0,
  	ISP_CCP2_MODE_CCP2 = 1,
  };
  
  /**
   * struct isp_csiphy_lane: CCP2/CSI2 lane position and polarity
   * @pos: position of the lane
   * @pol: polarity of the lane
   */
  struct isp_csiphy_lane {
  	u8 pos;
  	u8 pol;
  };
  
  #define ISP_CSIPHY1_NUM_DATA_LANES	1
  #define ISP_CSIPHY2_NUM_DATA_LANES	2
  
  /**
   * struct isp_csiphy_lanes_cfg - CCP2/CSI2 lane configuration
   * @data: Configuration of one or two data lanes
   * @clk: Clock lane configuration
   */
  struct isp_csiphy_lanes_cfg {
  	struct isp_csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
  	struct isp_csiphy_lane clk;
  };
  
  /**
   * struct isp_ccp2_platform_data - CCP2 interface platform data
   * @strobe_clk_pol: Strobe/clock polarity
   *		0 - Non Inverted, 1 - Inverted
   * @crc: Enable the cyclic redundancy check
   * @ccp2_mode: Enable CCP2 compatibility mode
   *		ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
   *		ISP_CCP2_MODE_CCP2 - CCP2 mode
   * @phy_layer: Physical layer selection
   *		ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
   *		ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
   * @vpclk_div: Video port output clock control
   */
  struct isp_ccp2_platform_data {
  	unsigned int strobe_clk_pol:1;
  	unsigned int crc:1;
  	unsigned int ccp2_mode:1;
  	unsigned int phy_layer:1;
  	unsigned int vpclk_div:2;
  	struct isp_csiphy_lanes_cfg lanecfg;
  };
  
  /**
   * struct isp_csi2_platform_data - CSI2 interface platform data
   * @crc: Enable the cyclic redundancy check
   * @vpclk_div: Video port output clock control
   */
  struct isp_csi2_platform_data {
  	unsigned crc:1;
  	unsigned vpclk_div:2;
  	struct isp_csiphy_lanes_cfg lanecfg;
  };
  
  struct isp_subdev_i2c_board_info {
  	struct i2c_board_info *board_info;
  	int i2c_adapter_id;
  };
  
  struct isp_v4l2_subdevs_group {
  	struct isp_subdev_i2c_board_info *subdevs;
  	enum isp_interface_type interface;
  	union {
  		struct isp_parallel_platform_data parallel;
  		struct isp_ccp2_platform_data ccp2;
  		struct isp_csi2_platform_data csi2;
  	} bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
  };
  
  struct isp_platform_xclk {
  	const char *dev_id;
  	const char *con_id;
  };
  
  struct isp_platform_data {
  	struct isp_platform_xclk xclks[2];
  	struct isp_v4l2_subdevs_group *subdevs;
  	void (*set_constraints)(struct isp_device *isp, bool enable);
  };
  
  #endif	/* __MEDIA_OMAP3ISP_H__ */