/drivers/media/video/et61x251/et61x251_tas5130d1b.c

  1/***************************************************************************
  2 * Plug-in for TAS5130D1B image sensor connected to the ET61X[12]51        *
  3 * PC Camera Controllers                                                   *
  4 *                                                                         *
  5 * Copyright (C) 2006-2007 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 "et61x251_sensor.h"
 23
 24
 25static int tas5130d1b_init(struct et61x251_device* cam)
 26{
 27	int err = 0;
 28
 29	err += et61x251_write_reg(cam, 0x14, 0x01);
 30	err += et61x251_write_reg(cam, 0x1b, 0x02);
 31	err += et61x251_write_reg(cam, 0x02, 0x12);
 32	err += et61x251_write_reg(cam, 0x0e, 0x60);
 33	err += et61x251_write_reg(cam, 0x80, 0x61);
 34	err += et61x251_write_reg(cam, 0xf0, 0x62);
 35	err += et61x251_write_reg(cam, 0x03, 0x63);
 36	err += et61x251_write_reg(cam, 0x14, 0x64);
 37	err += et61x251_write_reg(cam, 0xf4, 0x65);
 38	err += et61x251_write_reg(cam, 0x01, 0x66);
 39	err += et61x251_write_reg(cam, 0x05, 0x67);
 40	err += et61x251_write_reg(cam, 0x8f, 0x68);
 41	err += et61x251_write_reg(cam, 0x0f, 0x8d);
 42	err += et61x251_write_reg(cam, 0x08, 0x8e);
 43
 44	return err;
 45}
 46
 47
 48static int tas5130d1b_set_ctrl(struct et61x251_device* cam,
 49			       const struct v4l2_control* ctrl)
 50{
 51	int err = 0;
 52
 53	switch (ctrl->id) {
 54	case V4L2_CID_GAIN:
 55		err += et61x251_i2c_raw_write(cam, 2, 0x20,
 56					      0xf6-ctrl->value, 0, 0, 0,
 57					      0, 0, 0, 0);
 58		break;
 59	case V4L2_CID_EXPOSURE:
 60		err += et61x251_i2c_raw_write(cam, 2, 0x40,
 61					      0x47-ctrl->value, 0, 0, 0,
 62					      0, 0, 0, 0);
 63		break;
 64	default:
 65		return -EINVAL;
 66	}
 67
 68	return err ? -EIO : 0;
 69}
 70
 71
 72static const struct et61x251_sensor tas5130d1b = {
 73	.name = "TAS5130D1B",
 74	.interface = ET61X251_I2C_3WIRES,
 75	.rsta = ET61X251_I2C_RSTA_STOP,
 76	.active_pixel = {
 77		.left = 106,
 78		.top = 13,
 79	},
 80	.init = &tas5130d1b_init,
 81	.qctrl = {
 82		{
 83			.id = V4L2_CID_GAIN,
 84			.type = V4L2_CTRL_TYPE_INTEGER,
 85			.name = "global gain",
 86			.minimum = 0x00,
 87			.maximum = 0xf6,
 88			.step = 0x02,
 89			.default_value = 0x0d,
 90			.flags = 0,
 91		},
 92		{
 93			.id = V4L2_CID_EXPOSURE,
 94			.type = V4L2_CTRL_TYPE_INTEGER,
 95			.name = "exposure",
 96			.minimum = 0x00,
 97			.maximum = 0x47,
 98			.step = 0x01,
 99			.default_value = 0x23,
100			.flags = 0,
101		},
102	},
103	.set_ctrl = &tas5130d1b_set_ctrl,
104	.cropcap = {
105		.bounds = {
106			.left = 0,
107			.top = 0,
108			.width = 640,
109			.height = 480,
110		},
111		.defrect = {
112			.left = 0,
113			.top = 0,
114			.width = 640,
115			.height = 480,
116		},
117	},
118	.pix_format = {
119		.width = 640,
120		.height = 480,
121		.pixelformat = V4L2_PIX_FMT_SBGGR8,
122		.priv = 8,
123	},
124};
125
126
127int et61x251_probe_tas5130d1b(struct et61x251_device* cam)
128{
129	const struct usb_device_id tas5130d1b_id_table[] = {
130		{ USB_DEVICE(0x102c, 0x6251), },
131		{ }
132	};
133
134	/* Sensor detection is based on USB pid/vid */
135	if (!et61x251_match_id(cam, tas5130d1b_id_table))
136		return -ENODEV;
137
138	et61x251_attach_sensor(cam, &tas5130d1b);
139
140	return 0;
141}