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  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  */
  20
  21 #ifndef __APTINA_PLL_H
  22 #define __APTINA_PLL_H
  23
  24 struct aptina_pll {
  25         unsigned int ext_clock;
  26         unsigned int pix_clock;
  27
  28         unsigned int n;
  29         unsigned int m;
  30         unsigned int p1;
  31 };
  32
  33 struct aptina_pll_limits {
  34         unsigned int ext_clock_min;
  35         unsigned int ext_clock_max;
  36         unsigned int int_clock_min;
  37         unsigned int int_clock_max;
  38         unsigned int out_clock_min;
  39         unsigned int out_clock_max;
  40         unsigned int pix_clock_max;
  41
  42         unsigned int n_min;
  43         unsigned int n_max;
  44         unsigned int m_min;
  45         unsigned int m_max;
  46         unsigned int p1_min;
  47         unsigned int p1_max;
  48 };
  49
  50 struct device;
  51
  52 int aptina_pll_calculate(struct device *dev,
  53                          const struct aptina_pll_limits *limits,
  54                          struct aptina_pll *pll);
  55
  56 #endif /* __APTINA_PLL_H */