drivers/media/i2c/aptina-pll.h

   1 /*
   2  * Aptina Sensor PLL Configuration
   3  *
   4  * Copyright (C) 2012 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  */
  15
  16 #ifndef __APTINA_PLL_H
  17 #define __APTINA_PLL_H
  18
  19 struct aptina_pll {
  20         unsigned int ext_clock;
  21         unsigned int pix_clock;
  22
  23         unsigned int n;
  24         unsigned int m;
  25         unsigned int p1;
  26 };
  27
  28 struct aptina_pll_limits {
  29         unsigned int ext_clock_min;
  30         unsigned int ext_clock_max;
  31         unsigned int int_clock_min;
  32         unsigned int int_clock_max;
  33         unsigned int out_clock_min;
  34         unsigned int out_clock_max;
  35         unsigned int pix_clock_max;
  36
  37         unsigned int n_min;
  38         unsigned int n_max;
  39         unsigned int m_min;
  40         unsigned int m_max;
  41         unsigned int p1_min;
  42         unsigned int p1_max;
  43 };
  44
  45 struct device;
  46
  47 int aptina_pll_calculate(struct device *dev,
  48                          const struct aptina_pll_limits *limits,
  49                          struct aptina_pll *pll);
  50
  51 #endif /* __APTINA_PLL_H */