/*************************************************************************** * Plug-in for HV7131D image sensor connected to the SN9C10x PC Camera * * Controllers * * * * Copyright (C) 2004-2006 by Luca Risolia * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program; if not, write to the Free Software * * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * ***************************************************************************/ #include "sn9c102_sensor.h" static struct sn9c102_sensor hv7131d; static int hv7131d_init(struct sn9c102_device* cam) { int err = 0; err += sn9c102_write_reg(cam, 0x00, 0x10); err += sn9c102_write_reg(cam, 0x00, 0x11); err += sn9c102_write_reg(cam, 0x00, 0x14); err += sn9c102_write_reg(cam, 0x60, 0x17); err += sn9c102_write_reg(cam, 0x0e, 0x18); err += sn9c102_write_reg(cam, 0xf2, 0x19); err += sn9c102_i2c_write(cam, 0x01, 0x04); err += sn9c102_i2c_write(cam, 0x02, 0x00); err += sn9c102_i2c_write(cam, 0x28, 0x00); return err; } static int hv7131d_get_ctrl(struct sn9c102_device* cam, struct v4l2_control* ctrl) { switch (ctrl->id) { case V4L2_CID_EXPOSURE: { int r1 = sn9c102_i2c_read(cam, 0x26), r2 = sn9c102_i2c_read(cam, 0x27); if (r1 < 0 || r2 < 0) return -EIO; ctrl->value = (r1 << 8) | (r2 & 0xff); } return 0; case V4L2_CID_RED_BALANCE: if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0) return -EIO; ctrl->value = 0x3f - (ctrl->value & 0x3f); return 0; case V4L2_CID_BLUE_BALANCE: if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0) return -EIO; ctrl->value = 0x3f - (ctrl->value & 0x3f); return 0; case SN9C102_V4L2_CID_GREEN_BALANCE: if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0) return -EIO; ctrl->value = 0x3f - (ctrl->value & 0x3f); return 0; case SN9C102_V4L2_CID_RESET_LEVEL: if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0) return -EIO; ctrl->value &= 0x3f; return 0; case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: if ((ctrl->value = sn9c102_i2c_read(cam, 0x34)) < 0) return -EIO; ctrl->value &= 0x07; return 0; default: return -EINVAL; } } static int hv7131d_set_ctrl(struct sn9c102_device* cam, const struct v4l2_control* ctrl) { int err = 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: err += sn9c102_i2c_write(cam, 0x26, ctrl->value >> 8); err += sn9c102_i2c_write(cam, 0x27, ctrl->value & 0xff); break; case V4L2_CID_RED_BALANCE: err += sn9c102_i2c_write(cam, 0x31, 0x3f - ctrl->value); break; case V4L2_CID_BLUE_BALANCE: err += sn9c102_i2c_write(cam, 0x33, 0x3f - ctrl->value); break; case SN9C102_V4L2_CID_GREEN_BALANCE: err += sn9c102_i2c_write(cam, 0x32, 0x3f - ctrl->value); break; case SN9C102_V4L2_CID_RESET_LEVEL: err += sn9c102_i2c_write(cam, 0x30, ctrl->value); break; case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: err += sn9c102_i2c_write(cam, 0x34, ctrl->value); break; default: return -EINVAL; } return err ? -EIO : 0; } static int hv7131d_set_crop(struct sn9c102_device* cam, const struct v4l2_rect* rect) { struct sn9c102_sensor* s = &hv7131d; int err = 0; u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 2, v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2; err += sn9c102_write_reg(cam, h_start, 0x12); err += sn9c102_write_reg(cam, v_start, 0x13); return err; } static int hv7131d_set_pix_format(struct sn9c102_device* cam, const struct v4l2_pix_format* pix) { int err = 0; if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) err += sn9c102_write_reg(cam, 0x42, 0x19); else err += sn9c102_write_reg(cam, 0xf2, 0x19); return err; } static struct sn9c102_sensor hv7131d = { .name = "HV7131D", .maintainer = "Luca Risolia ", .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, .frequency = SN9C102_I2C_100KHZ, .interface = SN9C102_I2C_2WIRES, .i2c_slave_id = 0x11, .init = &hv7131d_init, .qctrl = { { .id = V4L2_CID_EXPOSURE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "exposure", .minimum = 0x0250, .maximum = 0xffff, .step = 0x0001, .default_value = 0x0250, .flags = 0, }, { .id = V4L2_CID_RED_BALANCE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "red balance", .minimum = 0x00, .maximum = 0x3f, .step = 0x01, .default_value = 0x00, .flags = 0, }, { .id = V4L2_CID_BLUE_BALANCE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "blue balance", .minimum = 0x00, .maximum = 0x3f, .step = 0x01, .default_value = 0x20, .flags = 0, }, { .id = SN9C102_V4L2_CID_GREEN_BALANCE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "green balance", .minimum = 0x00, .maximum = 0x3f, .step = 0x01, .default_value = 0x1e, .flags = 0, }, { .id = SN9C102_V4L2_CID_RESET_LEVEL, .type = V4L2_CTRL_TYPE_INTEGER, .name = "reset level", .minimum = 0x19, .maximum = 0x3f, .step = 0x01, .default_value = 0x30, .flags = 0, }, { .id = SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE, .type = V4L2_CTRL_TYPE_INTEGER, .name = "pixel bias voltage", .minimum = 0x00, .maximum = 0x07, .step = 0x01, .default_value = 0x02, .flags = 0, }, }, .get_ctrl = &hv7131d_get_ctrl, .set_ctrl = &hv7131d_set_ctrl, .cropcap = { .bounds = { .left = 0, .top = 0, .width = 640, .height = 480, }, .defrect = { .left = 0, .top = 0, .width = 640, .height = 480, }, }, .set_crop = &hv7131d_set_crop, .pix_format = { .width = 640, .height = 480, .pixelformat = V4L2_PIX_FMT_SBGGR8, .priv = 8, }, .set_pix_format = &hv7131d_set_pix_format }; int sn9c102_probe_hv7131d(struct sn9c102_device* cam) { int r0 = 0, r1 = 0, err = 0; err += sn9c102_write_reg(cam, 0x01, 0x01); err += sn9c102_write_reg(cam, 0x00, 0x01); err += sn9c102_write_reg(cam, 0x28, 0x17); if (err) return -EIO; r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00); r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01); if (r0 < 0 || r1 < 0) return -EIO; if (r0 != 0x00 && r1 != 0x04) return -ENODEV; sn9c102_attach_sensor(cam, &hv7131d); return 0; }