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Linux/drivers/staging/media/sn9c102/sn9c102_tas5110c1b.c

  1 /***************************************************************************
  2  * Plug-in for TAS5110C1B image sensor connected to the SN9C1xx PC Camera  *
  3  * Controllers                                                             *
  4  *                                                                         *
  5  * Copyright (C) 2004-2007 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 tas5110c1b_init(struct sn9c102_device* cam)
 27 {
 28         int err = 0;
 29 
 30         err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x44, 0x01},
 31                                        {0x00, 0x10}, {0x00, 0x11},
 32                                        {0x0a, 0x14}, {0x60, 0x17},
 33                                        {0x06, 0x18}, {0xfb, 0x19});
 34 
 35         err += sn9c102_i2c_write(cam, 0xc0, 0x80);
 36 
 37         return err;
 38 }
 39 
 40 
 41 static int tas5110c1b_set_ctrl(struct sn9c102_device* cam,
 42                                const struct v4l2_control* ctrl)
 43 {
 44         int err = 0;
 45 
 46         switch (ctrl->id) {
 47         case V4L2_CID_GAIN:
 48                 err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value);
 49                 break;
 50         default:
 51                 return -EINVAL;
 52         }
 53 
 54         return err ? -EIO : 0;
 55 }
 56 
 57 
 58 static int tas5110c1b_set_crop(struct sn9c102_device* cam,
 59                                const struct v4l2_rect* rect)
 60 {
 61         struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
 62         int err = 0;
 63         u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69,
 64            v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9;
 65 
 66         err += sn9c102_write_reg(cam, h_start, 0x12);
 67         err += sn9c102_write_reg(cam, v_start, 0x13);
 68 
 69         /* Don't change ! */
 70         err += sn9c102_write_reg(cam, 0x14, 0x1a);
 71         err += sn9c102_write_reg(cam, 0x0a, 0x1b);
 72         err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19);
 73 
 74         return err;
 75 }
 76 
 77 
 78 static int tas5110c1b_set_pix_format(struct sn9c102_device* cam,
 79                                      const struct v4l2_pix_format* pix)
 80 {
 81         int err = 0;
 82 
 83         if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
 84                 err += sn9c102_write_reg(cam, 0x2b, 0x19);
 85         else
 86                 err += sn9c102_write_reg(cam, 0xfb, 0x19);
 87 
 88         return err;
 89 }
 90 
 91 
 92 static const struct sn9c102_sensor tas5110c1b = {
 93         .name = "TAS5110C1B",
 94         .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
 95         .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
 96         .sysfs_ops = SN9C102_I2C_WRITE,
 97         .frequency = SN9C102_I2C_100KHZ,
 98         .interface = SN9C102_I2C_3WIRES,
 99         .init = &tas5110c1b_init,
100         .qctrl = {
101                 {
102                         .id = V4L2_CID_GAIN,
103                         .type = V4L2_CTRL_TYPE_INTEGER,
104                         .name = "global gain",
105                         .minimum = 0x00,
106                         .maximum = 0xf6,
107                         .step = 0x01,
108                         .default_value = 0x40,
109                         .flags = 0,
110                 },
111         },
112         .set_ctrl = &tas5110c1b_set_ctrl,
113         .cropcap = {
114                 .bounds = {
115                         .left = 0,
116                         .top = 0,
117                         .width = 352,
118                         .height = 288,
119                 },
120                 .defrect = {
121                         .left = 0,
122                         .top = 0,
123                         .width = 352,
124                         .height = 288,
125                 },
126         },
127         .set_crop = &tas5110c1b_set_crop,
128         .pix_format = {
129                 .width = 352,
130                 .height = 288,
131                 .pixelformat = V4L2_PIX_FMT_SBGGR8,
132                 .priv = 8,
133         },
134         .set_pix_format = &tas5110c1b_set_pix_format
135 };
136 
137 
138 int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam)
139 {
140         const struct usb_device_id tas5110c1b_id_table[] = {
141                 { USB_DEVICE(0x0c45, 0x6001), },
142                 { USB_DEVICE(0x0c45, 0x6005), },
143                 { USB_DEVICE(0x0c45, 0x60ab), },
144                 { }
145         };
146 
147         /* Sensor detection is based on USB pid/vid */
148         if (!sn9c102_match_id(cam, tas5110c1b_id_table))
149                 return -ENODEV;
150 
151         sn9c102_attach_sensor(cam, &tas5110c1b);
152 
153         return 0;
154 }
155 

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