From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 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! --- drivers/usb/media/sn9c102_hv7131d.c | 271 ++++++++++++++++++++++++++++++++++++ 1 file changed, 271 insertions(+) create mode 100644 drivers/usb/media/sn9c102_hv7131d.c (limited to 'drivers/usb/media/sn9c102_hv7131d.c') diff --git a/drivers/usb/media/sn9c102_hv7131d.c b/drivers/usb/media/sn9c102_hv7131d.c new file mode 100644 index 00000000000..18070d5333c --- /dev/null +++ b/drivers/usb/media/sn9c102_hv7131d.c @@ -0,0 +1,271 @@ +/*************************************************************************** + * Plug-in for HV7131D image sensor connected to the SN9C10x PC Camera * + * Controllers * + * * + * Copyright (C) 2004-2005 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; +} -- cgit v1.2.3