drivers/media/i2c/smiapp/smiapp-quirk.h

   1 /*
   2  * drivers/media/i2c/smiapp/smiapp-quirk.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_QUIRK__
  26 #define __SMIAPP_QUIRK__
  27
  28 struct smiapp_sensor;
  29
  30 /**
  31  * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard
  32  *
  33  * @limits: Replace sensor->limits with values which can't be read from
  34  *          sensor registers. Called the first time the sensor is powered up.
  35  * @post_poweron: Called always after the sensor has been fully powered on.
  36  * @pre_streamon: Called just before streaming is enabled.
  37  * @post_streamon: Called right after stopping streaming.
  38  */
  39 struct smiapp_quirk {
  40         int (*limits)(struct smiapp_sensor *sensor);
  41         int (*post_poweron)(struct smiapp_sensor *sensor);
  42         int (*pre_streamon)(struct smiapp_sensor *sensor);
  43         int (*post_streamoff)(struct smiapp_sensor *sensor);
  44         const struct smia_reg *regs;
  45         unsigned long flags;
  46 };
  47
  48 /* op pix clock is for all lanes in total normally */
  49 #define SMIAPP_QUIRK_FLAG_OP_PIX_CLOCK_PER_LANE                 (1 << 0)
  50 #define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY                        (1 << 1)
  51
  52 struct smiapp_reg_8 {
  53         u16 reg;
  54         u8 val;
  55 };
  56
  57 void smiapp_replace_limit(struct smiapp_sensor *sensor,
  58                           u32 limit, u32 val);
  59 bool smiapp_quirk_reg(struct smiapp_sensor *sensor,
  60                       u32 reg, u32 *val);
  61
  62 #define SMIAPP_MK_QUIRK_REG(_reg, _val) \
  63         {                               \
  64                 .type = (_reg >> 16),   \
  65                 .reg = (u16)_reg,       \
  66                 .val = _val,            \
  67         }
  68
  69 #define smiapp_call_quirk(_sensor, _quirk, ...)                         \
  70         (_sensor->minfo.quirk &&                                        \
  71          _sensor->minfo.quirk->_quirk ?                                 \
  72          _sensor->minfo.quirk->_quirk(_sensor, ##__VA_ARGS__) : 0)
  73
  74 #define smiapp_needs_quirk(_sensor, _quirk)             \
  75         (_sensor->minfo.quirk ?                         \
  76          _sensor->minfo.quirk->flags & _quirk : 0)
  77
  78 extern const struct smiapp_quirk smiapp_jt8ev1_quirk;
  79 extern const struct smiapp_quirk smiapp_imx125es_quirk;
  80 extern const struct smiapp_quirk smiapp_jt8ew9_quirk;
  81 extern const struct smiapp_quirk smiapp_tcm8500md_quirk;
  82
  83 #endif /* __SMIAPP_QUIRK__ */