include/media/smiapp.h

   1 /*
   2  * include/media/smiapp.h
   3  *
   4  * Generic driver for SMIA/SMIA++ compliant camera modules
   5  *
   6  * Copyright (C) 2011--2012 Nokia Corporation
   7  * Contact: Sakari Ailus <sakari.ailus@iki.fi>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __SMIAPP_H_
  26 #define __SMIAPP_H_
  27
  28 #include <media/v4l2-subdev.h>
  29
  30 #define SMIAPP_NAME             "smiapp"
  31
  32 #define SMIAPP_DFL_I2C_ADDR     (0x20 >> 1) /* Default I2C Address */
  33 #define SMIAPP_ALT_I2C_ADDR     (0x6e >> 1) /* Alternate I2C Address */
  34
  35 #define SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK      0
  36 #define SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE     1
  37 #define SMIAPP_CSI_SIGNALLING_MODE_CSI2                 2
  38
  39 #define SMIAPP_NO_XSHUTDOWN     -1
  40
  41 /*
  42  * Sometimes due to board layout considerations the camera module can be
  43  * mounted rotated. The typical rotation used is 180 degrees which can be
  44  * corrected by giving a default H-FLIP and V-FLIP in the sensor readout.
  45  * FIXME: rotation also changes the bayer pattern.
  46  */
  47 enum smiapp_module_board_orient {
  48         SMIAPP_MODULE_BOARD_ORIENT_0 = 0,
  49         SMIAPP_MODULE_BOARD_ORIENT_180,
  50 };
  51
  52 struct smiapp_flash_strobe_parms {
  53         u8 mode;
  54         u32 strobe_width_high_us;
  55         u16 strobe_delay;
  56         u16 stobe_start_point;
  57         u8 trigger;
  58 };
  59
  60 struct smiapp_platform_data {
  61         /*
  62          * Change the cci address if i2c_addr_alt is set.
  63          * Both default and alternate cci addr need to be present
  64          */
  65         unsigned short i2c_addr_dfl;    /* Default i2c addr */
  66         unsigned short i2c_addr_alt;    /* Alternate i2c addr */
  67
  68         unsigned int nvm_size;                  /* bytes */
  69         unsigned int ext_clk;                   /* sensor external clk */
  70
  71         unsigned int lanes;             /* Number of CSI-2 lanes */
  72         u8 csi_signalling_mode;         /* SMIAPP_CSI_SIGNALLING_MODE_* */
  73         const s64 *op_sys_clock;
  74
  75         enum smiapp_module_board_orient module_board_orient;
  76
  77         struct smiapp_flash_strobe_parms *strobe_setup;
  78
  79         int (*set_xclk)(struct v4l2_subdev *sd, int hz);
  80         char *ext_clk_name;
  81         int xshutdown;                  /* gpio or SMIAPP_NO_XSHUTDOWN */
  82 };
  83
  84 #endif /* __SMIAPP_H_  */