release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/media/video/sn9c102/sn9c102_tas5110d.c

   1 /***************************************************************************
   2  * Plug-in for TAS5110D image sensor connected to the SN9C1xx PC Camera    *
   3  * Controllers                                                             *
   4  *                                                                         *
   5  * Copyright (C) 2007 by Luca Risolia <luca.risolia@studio.unibo.it>       *
   6  *                                                                         *
   7  * This program is free software; you can redistribute it and/or modify    *
   8  * it under the terms of the GNU General Public License as published by    *
   9  * the Free Software Foundation; either version 2 of the License, or       *
  10  * (at your option) any later version.                                     *
  11  *                                                                         *
  12  * This program is distributed in the hope that it will be useful,         *
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
  15  * GNU General Public License for more details.                            *
  16  *                                                                         *
  17  * You should have received a copy of the GNU General Public License       *
  18  * along with this program; if not, write to the Free Software             *
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.               *
  20  ***************************************************************************/
  21
  22 #include "sn9c102_sensor.h"
  23 #include "sn9c102_devtable.h"
  24
  25
  26 static int tas5110d_init(struct sn9c102_device* cam)
  27 {
  28         int err;
  29
  30         err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x04, 0x01},
  31                                        {0x0a, 0x14}, {0x60, 0x17},
  32                                        {0x06, 0x18}, {0xfb, 0x19});
  33
  34         err += sn9c102_i2c_write(cam, 0x9a, 0xca);
  35
  36         return err;
  37 }
  38
  39
  40 static int tas5110d_set_crop(struct sn9c102_device* cam,
  41                              const struct v4l2_rect* rect)
  42 {
  43         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
  44         int err = 0;
  45         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
  46            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
  47
  48         err += sn9c102_write_reg(cam, h_start, 0x12);
  49         err += sn9c102_write_reg(cam, v_start, 0x13);
  50
  51         err += sn9c102_write_reg(cam, 0x14, 0x1a);
  52         err += sn9c102_write_reg(cam, 0x0a, 0x1b);
  53
  54         return err;
  55 }
  56
  57
  58 static int tas5110d_set_pix_format(struct sn9c102_device* cam,
  59                                      const struct v4l2_pix_format* pix)
  60 {
  61         int err = 0;
  62
  63         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
  64                 err += sn9c102_write_reg(cam, 0x3b, 0x19);
  65         else
  66                 err += sn9c102_write_reg(cam, 0xfb, 0x19);
  67
  68         return err;
  69 }
  70
  71
  72 static const struct sn9c102_sensor tas5110d = {
  73         .name = "TAS5110D",
  74         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
  75         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
  76         .sysfs_ops = SN9C102_I2C_WRITE,
  77         .frequency = SN9C102_I2C_100KHZ,
  78         .interface = SN9C102_I2C_2WIRES,
  79         .i2c_slave_id = 0x61,
  80         .init = &tas5110d_init,
  81         .cropcap = {
  82                 .bounds = {
  83                         .left = 0,
  84                         .top = 0,
  85                         .width = 352,
  86                         .height = 288,
  87                 },
  88                 .defrect = {
  89                         .left = 0,
  90                         .top = 0,
  91                         .width = 352,
  92                         .height = 288,
  93                 },
  94         },
  95         .set_crop = &tas5110d_set_crop,
  96         .pix_format = {
  97                 .width = 352,
  98                 .height = 288,
  99                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
 100                 .priv = 8,
 101         },
 102         .set_pix_format = &tas5110d_set_pix_format
 103 };
 104
 105
 106 int sn9c102_probe_tas5110d(struct sn9c102_device* cam)
 107 {
 108         const struct usb_device_id tas5110d_id_table[] = {
 109                 { USB_DEVICE(0x0c45, 0x6007), },
 110                 { }
 111         };
 112
 113         if (!sn9c102_match_id(cam, tas5110d_id_table))
 114                 return -ENODEV;
 115
 116         sn9c102_attach_sensor(cam, &tas5110d);
 117
 118         return 0;
 119 }