linux/include/media/smiapp.h
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   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@maxwell.research.nokia.com>
   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 */
  47enum smiapp_module_board_orient {
  48        SMIAPP_MODULE_BOARD_ORIENT_0 = 0,
  49        SMIAPP_MODULE_BOARD_ORIENT_180,
  50};
  51
  52struct 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
  60struct 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_  */
  85
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