402 lines
10 KiB
C
402 lines
10 KiB
C
/***************************************************************************
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* Plug-in for OV7630 image sensor connected to the SN9C10x PC Camera *
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* Controllers *
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* *
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* Copyright (C) 2005-2006 by Luca Risolia <luca.risolia@studio.unibo.it> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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***************************************************************************/
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#include "sn9c102_sensor.h"
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static struct sn9c102_sensor ov7630;
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static int ov7630_init(struct sn9c102_device* cam)
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{
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int err = 0;
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err += sn9c102_write_reg(cam, 0x00, 0x14);
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err += sn9c102_write_reg(cam, 0x60, 0x17);
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err += sn9c102_write_reg(cam, 0x0f, 0x18);
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err += sn9c102_write_reg(cam, 0x50, 0x19);
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err += sn9c102_i2c_write(cam, 0x12, 0x80);
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err += sn9c102_i2c_write(cam, 0x11, 0x01);
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err += sn9c102_i2c_write(cam, 0x15, 0x34);
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err += sn9c102_i2c_write(cam, 0x16, 0x03);
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err += sn9c102_i2c_write(cam, 0x17, 0x1c);
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err += sn9c102_i2c_write(cam, 0x18, 0xbd);
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err += sn9c102_i2c_write(cam, 0x19, 0x06);
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err += sn9c102_i2c_write(cam, 0x1a, 0xf6);
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err += sn9c102_i2c_write(cam, 0x1b, 0x04);
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err += sn9c102_i2c_write(cam, 0x20, 0xf6);
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err += sn9c102_i2c_write(cam, 0x23, 0xee);
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err += sn9c102_i2c_write(cam, 0x26, 0xa0);
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err += sn9c102_i2c_write(cam, 0x27, 0x9a);
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err += sn9c102_i2c_write(cam, 0x28, 0xa0);
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err += sn9c102_i2c_write(cam, 0x29, 0x30);
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err += sn9c102_i2c_write(cam, 0x2a, 0xa0);
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err += sn9c102_i2c_write(cam, 0x2b, 0x1f);
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err += sn9c102_i2c_write(cam, 0x2f, 0x3d);
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err += sn9c102_i2c_write(cam, 0x30, 0x24);
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err += sn9c102_i2c_write(cam, 0x32, 0x86);
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err += sn9c102_i2c_write(cam, 0x60, 0xa9);
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err += sn9c102_i2c_write(cam, 0x61, 0x42);
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err += sn9c102_i2c_write(cam, 0x65, 0x00);
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err += sn9c102_i2c_write(cam, 0x69, 0x38);
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err += sn9c102_i2c_write(cam, 0x6f, 0x88);
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err += sn9c102_i2c_write(cam, 0x70, 0x0b);
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err += sn9c102_i2c_write(cam, 0x71, 0x00);
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err += sn9c102_i2c_write(cam, 0x74, 0x21);
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err += sn9c102_i2c_write(cam, 0x7d, 0xf7);
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return err;
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}
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static int ov7630_set_ctrl(struct sn9c102_device* cam,
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const struct v4l2_control* ctrl)
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{
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int err = 0;
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switch (ctrl->id) {
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case V4L2_CID_EXPOSURE:
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err += sn9c102_i2c_write(cam, 0x10, ctrl->value >> 2);
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err += sn9c102_i2c_write(cam, 0x76, ctrl->value & 0x03);
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break;
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case V4L2_CID_RED_BALANCE:
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err += sn9c102_i2c_write(cam, 0x02, ctrl->value);
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break;
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case V4L2_CID_BLUE_BALANCE:
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err += sn9c102_i2c_write(cam, 0x01, ctrl->value);
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break;
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case V4L2_CID_GAIN:
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err += sn9c102_i2c_write(cam, 0x00, ctrl->value);
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break;
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case V4L2_CID_CONTRAST:
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err += ctrl->value ? sn9c102_i2c_write(cam, 0x05,
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(ctrl->value-1) | 0x20)
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: sn9c102_i2c_write(cam, 0x05, 0x00);
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break;
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case V4L2_CID_BRIGHTNESS:
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err += sn9c102_i2c_write(cam, 0x06, ctrl->value);
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break;
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case V4L2_CID_SATURATION:
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err += sn9c102_i2c_write(cam, 0x03, ctrl->value << 4);
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break;
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case V4L2_CID_HUE:
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err += ctrl->value ? sn9c102_i2c_write(cam, 0x04,
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(ctrl->value-1) | 0x20)
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: sn9c102_i2c_write(cam, 0x04, 0x00);
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break;
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case V4L2_CID_DO_WHITE_BALANCE:
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err += sn9c102_i2c_write(cam, 0x0c, ctrl->value);
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break;
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case V4L2_CID_WHITENESS:
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err += sn9c102_i2c_write(cam, 0x0d, ctrl->value);
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break;
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case V4L2_CID_AUTO_WHITE_BALANCE:
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err += sn9c102_i2c_write(cam, 0x12, (ctrl->value << 2) | 0x78);
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break;
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case V4L2_CID_AUTOGAIN:
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err += sn9c102_i2c_write(cam, 0x13, ctrl->value);
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break;
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case V4L2_CID_VFLIP:
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err += sn9c102_i2c_write(cam, 0x75, 0x0e | (ctrl->value << 7));
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break;
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case V4L2_CID_BLACK_LEVEL:
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err += sn9c102_i2c_write(cam, 0x25, ctrl->value);
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break;
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case SN9C102_V4L2_CID_BRIGHT_LEVEL:
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err += sn9c102_i2c_write(cam, 0x24, ctrl->value);
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break;
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case SN9C102_V4L2_CID_GAMMA:
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err += sn9c102_i2c_write(cam, 0x14, (ctrl->value << 2) | 0x80);
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break;
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case SN9C102_V4L2_CID_BAND_FILTER:
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err += sn9c102_i2c_write(cam, 0x2d, ctrl->value << 2);
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break;
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default:
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return -EINVAL;
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}
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return err ? -EIO : 0;
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}
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static int ov7630_set_crop(struct sn9c102_device* cam,
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const struct v4l2_rect* rect)
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{
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struct sn9c102_sensor* s = &ov7630;
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int err = 0;
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u8 v_start = (u8)(rect->top - s->cropcap.bounds.top) + 1;
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err += sn9c102_write_reg(cam, v_start, 0x13);
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return err;
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}
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static int ov7630_set_pix_format(struct sn9c102_device* cam,
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const struct v4l2_pix_format* pix)
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{
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int err = 0;
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if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
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err += sn9c102_write_reg(cam, 0x20, 0x19);
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else
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err += sn9c102_write_reg(cam, 0x50, 0x19);
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return err;
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}
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static struct sn9c102_sensor ov7630 = {
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.name = "OV7630",
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.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
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.sysfs_ops = SN9C102_I2C_WRITE,
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.frequency = SN9C102_I2C_100KHZ,
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.interface = SN9C102_I2C_2WIRES,
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.i2c_slave_id = 0x21,
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.init = &ov7630_init,
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.qctrl = {
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "global gain",
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.minimum = 0x00,
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.maximum = 0x3f,
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.step = 0x01,
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.default_value = 0x14,
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.flags = 0,
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},
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{
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.id = V4L2_CID_HUE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "hue",
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.minimum = 0x00,
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.maximum = 0x1f+1,
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.step = 0x01,
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.default_value = 0x00,
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.flags = 0,
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},
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{
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "saturation",
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.minimum = 0x00,
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.maximum = 0x0f,
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.step = 0x01,
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.default_value = 0x08,
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.flags = 0,
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},
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{
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "contrast",
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.minimum = 0x00,
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.maximum = 0x1f+1,
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.step = 0x01,
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.default_value = 0x00,
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.flags = 0,
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},
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "exposure",
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.minimum = 0x000,
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.maximum = 0x3ff,
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.step = 0x001,
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.default_value = 0x83<<2,
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.flags = 0,
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},
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{
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.id = V4L2_CID_RED_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "red balance",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 0x01,
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.default_value = 0x3a,
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.flags = 0,
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},
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{
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.id = V4L2_CID_BLUE_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "blue balance",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 0x01,
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.default_value = 0x77,
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.flags = 0,
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},
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "brightness",
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.minimum = 0x00,
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.maximum = 0xff,
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.step = 0x01,
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.default_value = 0xa0,
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.flags = 0,
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},
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{
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.id = V4L2_CID_DO_WHITE_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "white balance background: blue",
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.minimum = 0x00,
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.maximum = 0x3f,
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.step = 0x01,
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.default_value = 0x20,
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.flags = 0,
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},
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{
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.id = V4L2_CID_WHITENESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "white balance background: red",
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.minimum = 0x00,
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.maximum = 0x3f,
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.step = 0x01,
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.default_value = 0x20,
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.flags = 0,
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},
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{
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.id = V4L2_CID_AUTO_WHITE_BALANCE,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "auto white balance",
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.minimum = 0x00,
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.maximum = 0x01,
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.step = 0x01,
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.default_value = 0x01,
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.flags = 0,
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},
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{
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.id = V4L2_CID_AUTOGAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "gain & exposure mode",
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.minimum = 0x00,
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.maximum = 0x03,
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.step = 0x01,
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.default_value = 0x00,
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.flags = 0,
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},
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{
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.id = V4L2_CID_VFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "vertical flip",
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.minimum = 0x00,
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.maximum = 0x01,
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.step = 0x01,
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.default_value = 0x01,
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.flags = 0,
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},
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{
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.id = V4L2_CID_BLACK_LEVEL,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "black pixel ratio",
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.minimum = 0x01,
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.maximum = 0x9a,
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.step = 0x01,
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.default_value = 0x8a,
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.flags = 0,
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},
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{
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.id = SN9C102_V4L2_CID_BRIGHT_LEVEL,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "bright pixel ratio",
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.minimum = 0x01,
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.maximum = 0x9a,
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.step = 0x01,
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.default_value = 0x10,
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.flags = 0,
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},
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{
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.id = SN9C102_V4L2_CID_BAND_FILTER,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "band filter",
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.minimum = 0x00,
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.maximum = 0x01,
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.step = 0x01,
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.default_value = 0x00,
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.flags = 0,
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},
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{
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.id = SN9C102_V4L2_CID_GAMMA,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "rgb gamma",
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.minimum = 0x00,
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.maximum = 0x01,
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.step = 0x01,
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.default_value = 0x00,
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.flags = 0,
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},
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},
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.set_ctrl = &ov7630_set_ctrl,
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.cropcap = {
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.bounds = {
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.left = 0,
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.top = 0,
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.width = 640,
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.height = 480,
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},
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.defrect = {
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.left = 0,
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.top = 0,
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.width = 640,
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.height = 480,
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},
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},
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.set_crop = &ov7630_set_crop,
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.pix_format = {
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.width = 640,
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.height = 480,
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.pixelformat = V4L2_PIX_FMT_SBGGR8,
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.priv = 8,
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},
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.set_pix_format = &ov7630_set_pix_format
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};
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int sn9c102_probe_ov7630(struct sn9c102_device* cam)
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{
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const struct usb_device_id ov7630_id_table[] = {
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{ USB_DEVICE(0x0c45, 0x602c), },
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{ USB_DEVICE(0x0c45, 0x602d), },
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{ USB_DEVICE(0x0c45, 0x608f), },
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{ USB_DEVICE(0x0c45, 0x60b0), },
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{ }
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};
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int err = 0;
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if (!sn9c102_match_id(cam, ov7630_id_table))
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return -ENODEV;
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err += sn9c102_write_reg(cam, 0x01, 0x01);
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err += sn9c102_write_reg(cam, 0x00, 0x01);
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err += sn9c102_write_reg(cam, 0x28, 0x17);
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if (err)
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return -EIO;
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err += sn9c102_i2c_try_write(cam, &ov7630, 0x0b, 0);
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if (err)
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return -ENODEV;
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sn9c102_attach_sensor(cam, &ov7630);
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return 0;
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}
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