drivers/media/video/omap3isp/ispcsiphy.h

   1 /*
   2  * ispcsiphy.h
   3  *
   4  * TI OMAP3 ISP - CSI PHY module
   5  *
   6  * Copyright (C) 2010 Nokia Corporation
   7  * Copyright (C) 2009 Texas Instruments, Inc.
   8  *
   9  * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10  *           Sakari Ailus <sakari.ailus@iki.fi>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  24  * 02110-1301 USA
  25  */
  26
  27 #ifndef OMAP3_ISP_CSI_PHY_H
  28 #define OMAP3_ISP_CSI_PHY_H
  29
  30 struct isp_csi2_device;
  31 struct regulator;
  32
  33 struct csiphy_lane {
  34         u8 pos;
  35         u8 pol;
  36 };
  37
  38 #define ISP_CSIPHY2_NUM_DATA_LANES      2
  39 #define ISP_CSIPHY1_NUM_DATA_LANES      1
  40
  41 struct isp_csiphy_lanes_cfg {
  42         struct csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
  43         struct csiphy_lane clk;
  44 };
  45
  46 struct isp_csiphy_dphy_cfg {
  47         u8 ths_term;
  48         u8 ths_settle;
  49         u8 tclk_term;
  50         unsigned tclk_miss:1;
  51         u8 tclk_settle;
  52 };
  53
  54 struct isp_csiphy {
  55         struct isp_device *isp;
  56         struct mutex mutex;     /* serialize csiphy configuration */
  57         u8 phy_in_use;
  58         struct isp_csi2_device *csi2;
  59         struct regulator *vdd;
  60
  61         /* mem resources - enums as defined in enum isp_mem_resources */
  62         unsigned int cfg_regs;
  63         unsigned int phy_regs;
  64
  65         u8 num_data_lanes;      /* number of CSI2 Data Lanes supported */
  66         struct isp_csiphy_lanes_cfg lanes;
  67         struct isp_csiphy_dphy_cfg dphy;
  68 };
  69
  70 int omap3isp_csiphy_acquire(struct isp_csiphy *phy);
  71 void omap3isp_csiphy_release(struct isp_csiphy *phy);
  72 int omap3isp_csiphy_init(struct isp_device *isp);
  73
  74 #endif  /* OMAP3_ISP_CSI_PHY_H */