1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
363 lines
11 KiB
C
363 lines
11 KiB
C
/***************************************************************************
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* Plug-in for MI-0343 image sensor connected to the SN9C10x PC Camera *
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* Controllers *
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* *
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* Copyright (C) 2004-2005 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 mi0343;
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static u8 mi0343_i2c_data[5+1];
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static int mi0343_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, 0x10);
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err += sn9c102_write_reg(cam, 0x00, 0x11);
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err += sn9c102_write_reg(cam, 0x0a, 0x14);
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err += sn9c102_write_reg(cam, 0x40, 0x01);
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err += sn9c102_write_reg(cam, 0x20, 0x17);
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err += sn9c102_write_reg(cam, 0x07, 0x18);
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err += sn9c102_write_reg(cam, 0xa0, 0x19);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x0d, 0x00, 0x01, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x0d, 0x00, 0x00, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x03, 0x01, 0xe1, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x04, 0x02, 0x81, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x05, 0x00, 0x17, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x06, 0x00, 0x11, 0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4, mi0343.i2c_slave_id,
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0x62, 0x04, 0x9a, 0, 0);
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return err;
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}
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static int mi0343_get_ctrl(struct sn9c102_device* cam,
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struct v4l2_control* ctrl)
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{
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switch (ctrl->id) {
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case V4L2_CID_EXPOSURE:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x09, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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ctrl->value = mi0343_i2c_data[2];
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return 0;
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case V4L2_CID_GAIN:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x35, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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break;
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case V4L2_CID_HFLIP:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x20, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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ctrl->value = mi0343_i2c_data[3] & 0x20 ? 1 : 0;
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return 0;
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case V4L2_CID_VFLIP:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x20, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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ctrl->value = mi0343_i2c_data[3] & 0x80 ? 1 : 0;
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return 0;
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case V4L2_CID_RED_BALANCE:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x2d, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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break;
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case V4L2_CID_BLUE_BALANCE:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x2c, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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break;
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case SN9C102_V4L2_CID_GREEN_BALANCE:
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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id,
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0x2e, 2+1, mi0343_i2c_data) < 0)
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return -EIO;
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break;
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default:
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return -EINVAL;
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}
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switch (ctrl->id) {
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case V4L2_CID_GAIN:
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case V4L2_CID_RED_BALANCE:
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case V4L2_CID_BLUE_BALANCE:
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case SN9C102_V4L2_CID_GREEN_BALANCE:
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ctrl->value = mi0343_i2c_data[3] | (mi0343_i2c_data[2] << 8);
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if (ctrl->value >= 0x10 && ctrl->value <= 0x3f)
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ctrl->value -= 0x10;
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else if (ctrl->value >= 0x60 && ctrl->value <= 0x7f)
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ctrl->value -= 0x60;
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else if (ctrl->value >= 0xe0 && ctrl->value <= 0xff)
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ctrl->value -= 0xe0;
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}
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return 0;
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}
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static int mi0343_set_ctrl(struct sn9c102_device* cam,
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const struct v4l2_control* ctrl)
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{
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u16 reg = 0;
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int err = 0;
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switch (ctrl->id) {
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case V4L2_CID_GAIN:
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case V4L2_CID_RED_BALANCE:
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case V4L2_CID_BLUE_BALANCE:
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case SN9C102_V4L2_CID_GREEN_BALANCE:
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if (ctrl->value <= (0x3f-0x10))
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reg = 0x10 + ctrl->value;
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else if (ctrl->value <= ((0x3f-0x10) + (0x7f-0x60)))
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reg = 0x60 + (ctrl->value - (0x3f-0x10));
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else
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reg = 0xe0 + (ctrl->value - (0x3f-0x10) - (0x7f-0x60));
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break;
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}
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switch (ctrl->id) {
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case V4L2_CID_EXPOSURE:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x09, ctrl->value, 0x00,
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0, 0);
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break;
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case V4L2_CID_GAIN:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x35, reg >> 8, reg & 0xff,
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0, 0);
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break;
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case V4L2_CID_HFLIP:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x20, ctrl->value ? 0x40:0x00,
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ctrl->value ? 0x20:0x00,
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0, 0);
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break;
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case V4L2_CID_VFLIP:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x20, ctrl->value ? 0x80:0x00,
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ctrl->value ? 0x80:0x00,
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0, 0);
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break;
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case V4L2_CID_RED_BALANCE:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x2d, reg >> 8, reg & 0xff,
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0, 0);
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break;
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case V4L2_CID_BLUE_BALANCE:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x2c, reg >> 8, reg & 0xff,
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0, 0);
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break;
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case SN9C102_V4L2_CID_GREEN_BALANCE:
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x2b, reg >> 8, reg & 0xff,
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0, 0);
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x2e, reg >> 8, reg & 0xff,
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0, 0);
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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 mi0343_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 = &mi0343;
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int err = 0;
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u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 0,
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v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
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err += sn9c102_write_reg(cam, h_start, 0x12);
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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 mi0343_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_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x0a, 0x00, 0x03, 0, 0);
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err += sn9c102_write_reg(cam, 0x20, 0x19);
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} else {
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err += sn9c102_i2c_try_raw_write(cam, &mi0343, 4,
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mi0343.i2c_slave_id,
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0x0a, 0x00, 0x05, 0, 0);
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err += sn9c102_write_reg(cam, 0xa0, 0x19);
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}
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return err;
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}
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static struct sn9c102_sensor mi0343 = {
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.name = "MI-0343",
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.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
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.frequency = SN9C102_I2C_100KHZ,
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.interface = SN9C102_I2C_2WIRES,
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.i2c_slave_id = 0x5d,
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.init = &mi0343_init,
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.qctrl = {
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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 = 0x00,
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.maximum = 0x0f,
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.step = 0x01,
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.default_value = 0x06,
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.flags = 0,
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},
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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-0x10)+(0x7f-0x60)+(0xff-0xe0),/*0x6d*/
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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_HFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "horizontal mirror",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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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 mirror",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0,
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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 = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
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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_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 = (0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0),
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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_GREEN_BALANCE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "green balance",
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.minimum = 0x00,
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.maximum = ((0x3f-0x10)+(0x7f-0x60)+(0xff-0xe0)),
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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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.get_ctrl = &mi0343_get_ctrl,
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.set_ctrl = &mi0343_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 = &mi0343_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 = &mi0343_set_pix_format
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};
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int sn9c102_probe_mi0343(struct sn9c102_device* cam)
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{
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int err = 0;
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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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if (sn9c102_i2c_try_raw_read(cam, &mi0343, mi0343.i2c_slave_id, 0x00,
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2, mi0343_i2c_data) < 0)
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return -EIO;
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if (mi0343_i2c_data[4] != 0x32 && mi0343_i2c_data[3] != 0xe3)
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return -ENODEV;
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sn9c102_attach_sensor(cam, &mi0343);
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return 0;
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}
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