[linux-2.6-block.git] / drivers / media / video / sn9c102 / sn9c102_hv7131d.c

/***************************************************************************
 * Plug-in for HV7131D image sensor connected to the SN9C1xx PC Camera     *
 * Controllers                                                             *
 *                                                                         *
 * Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it>  *
 *                                                                         *
 * 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 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 = sn9c102_get_sensor(cam);
	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 <luca.risolia@studio.unibo.it>",
	.supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102,
	.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;
}
Commit	Line	Data
1da177e4	1	/***************************************************************************
f327ebbd	2	* Plug-in for HV7131D image sensor connected to the SN9C1xx PC Camera *
1da177e4 LT	3	* Controllers *
1da177e4 LT	4	* *
f327ebbd	5	* Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it> *
1da177e4 LT	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 "sn9c102_sensor.h"
	23
	24
1da177e4 LT	25	static int hv7131d_init(struct sn9c102_device* cam)
	26	{
	27	int err = 0;
	28
	29	err += sn9c102_write_reg(cam, 0x00, 0x10);
	30	err += sn9c102_write_reg(cam, 0x00, 0x11);
	31	err += sn9c102_write_reg(cam, 0x00, 0x14);
	32	err += sn9c102_write_reg(cam, 0x60, 0x17);
	33	err += sn9c102_write_reg(cam, 0x0e, 0x18);
	34	err += sn9c102_write_reg(cam, 0xf2, 0x19);
	35
	36	err += sn9c102_i2c_write(cam, 0x01, 0x04);
	37	err += sn9c102_i2c_write(cam, 0x02, 0x00);
	38	err += sn9c102_i2c_write(cam, 0x28, 0x00);
	39
	40	return err;
	41	}
	42
	43
d56410e0 MCC	44	static int hv7131d_get_ctrl(struct sn9c102_device* cam,
d56410e0 MCC	45	struct v4l2_control* ctrl)
1da177e4 LT	46	{
	47	switch (ctrl->id) {
	48	case V4L2_CID_EXPOSURE:
	49	{
	50	int r1 = sn9c102_i2c_read(cam, 0x26),
	51	r2 = sn9c102_i2c_read(cam, 0x27);
	52	if (r1 < 0 \|\| r2 < 0)
	53	return -EIO;
	54	ctrl->value = (r1 << 8) \| (r2 & 0xff);
	55	}
	56	return 0;
	57	case V4L2_CID_RED_BALANCE:
	58	if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0)
	59	return -EIO;
	60	ctrl->value = 0x3f - (ctrl->value & 0x3f);
	61	return 0;
	62	case V4L2_CID_BLUE_BALANCE:
	63	if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0)
	64	return -EIO;
	65	ctrl->value = 0x3f - (ctrl->value & 0x3f);
	66	return 0;
	67	case SN9C102_V4L2_CID_GREEN_BALANCE:
	68	if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0)
	69	return -EIO;
	70	ctrl->value = 0x3f - (ctrl->value & 0x3f);
	71	return 0;
	72	case SN9C102_V4L2_CID_RESET_LEVEL:
	73	if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0)
	74	return -EIO;
	75	ctrl->value &= 0x3f;
	76	return 0;
	77	case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE:
	78	if ((ctrl->value = sn9c102_i2c_read(cam, 0x34)) < 0)
	79	return -EIO;
	80	ctrl->value &= 0x07;
	81	return 0;
	82	default:
	83	return -EINVAL;
	84	}
	85	}
	86
	87
d56410e0 MCC	88	static int hv7131d_set_ctrl(struct sn9c102_device* cam,
d56410e0 MCC	89	const struct v4l2_control* ctrl)
1da177e4 LT	90	{
	91	int err = 0;
	92
	93	switch (ctrl->id) {
	94	case V4L2_CID_EXPOSURE:
	95	err += sn9c102_i2c_write(cam, 0x26, ctrl->value >> 8);
	96	err += sn9c102_i2c_write(cam, 0x27, ctrl->value & 0xff);
	97	break;
	98	case V4L2_CID_RED_BALANCE:
	99	err += sn9c102_i2c_write(cam, 0x31, 0x3f - ctrl->value);
	100	break;
	101	case V4L2_CID_BLUE_BALANCE:
	102	err += sn9c102_i2c_write(cam, 0x33, 0x3f - ctrl->value);
	103	break;
	104	case SN9C102_V4L2_CID_GREEN_BALANCE:
	105	err += sn9c102_i2c_write(cam, 0x32, 0x3f - ctrl->value);
	106	break;
	107	case SN9C102_V4L2_CID_RESET_LEVEL:
	108	err += sn9c102_i2c_write(cam, 0x30, ctrl->value);
	109	break;
	110	case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE:
	111	err += sn9c102_i2c_write(cam, 0x34, ctrl->value);
	112	break;
	113	default:
	114	return -EINVAL;
	115	}
	116
	117	return err ? -EIO : 0;
	118	}
	119
	120
d56410e0 MCC	121	static int hv7131d_set_crop(struct sn9c102_device* cam,
d56410e0 MCC	122	const struct v4l2_rect* rect)
1da177e4	123	{
f327ebbd	124	struct sn9c102_sensor* s = sn9c102_get_sensor(cam);
1da177e4 LT	125	int err = 0;
	126	u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 2,
	127	v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2;
	128
	129	err += sn9c102_write_reg(cam, h_start, 0x12);
	130	err += sn9c102_write_reg(cam, v_start, 0x13);
	131
	132	return err;
	133	}
	134
	135
d56410e0 MCC	136	static int hv7131d_set_pix_format(struct sn9c102_device* cam,
d56410e0 MCC	137	const struct v4l2_pix_format* pix)
1da177e4 LT	138	{
	139	int err = 0;
	140
	141	if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X)
	142	err += sn9c102_write_reg(cam, 0x42, 0x19);
	143	else
	144	err += sn9c102_write_reg(cam, 0xf2, 0x19);
	145
	146	return err;
	147	}
	148
	149
	150	static struct sn9c102_sensor hv7131d = {
	151	.name = "HV7131D",
	152	.maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>",
f423b9a8	153	.supported_bridge = BRIDGE_SN9C101 \| BRIDGE_SN9C102,
1da177e4 LT	154	.sysfs_ops = SN9C102_I2C_READ \| SN9C102_I2C_WRITE,
	155	.frequency = SN9C102_I2C_100KHZ,
	156	.interface = SN9C102_I2C_2WIRES,
	157	.i2c_slave_id = 0x11,
	158	.init = &hv7131d_init,
	159	.qctrl = {
	160	{
	161	.id = V4L2_CID_EXPOSURE,
	162	.type = V4L2_CTRL_TYPE_INTEGER,
	163	.name = "exposure",
	164	.minimum = 0x0250,
	165	.maximum = 0xffff,
	166	.step = 0x0001,
	167	.default_value = 0x0250,
	168	.flags = 0,
	169	},
	170	{
	171	.id = V4L2_CID_RED_BALANCE,
	172	.type = V4L2_CTRL_TYPE_INTEGER,
	173	.name = "red balance",
	174	.minimum = 0x00,
	175	.maximum = 0x3f,
	176	.step = 0x01,
	177	.default_value = 0x00,
	178	.flags = 0,
	179	},
	180	{
	181	.id = V4L2_CID_BLUE_BALANCE,
	182	.type = V4L2_CTRL_TYPE_INTEGER,
	183	.name = "blue balance",
	184	.minimum = 0x00,
	185	.maximum = 0x3f,
	186	.step = 0x01,
	187	.default_value = 0x20,
	188	.flags = 0,
	189	},
	190	{
	191	.id = SN9C102_V4L2_CID_GREEN_BALANCE,
	192	.type = V4L2_CTRL_TYPE_INTEGER,
	193	.name = "green balance",
	194	.minimum = 0x00,
	195	.maximum = 0x3f,
	196	.step = 0x01,
	197	.default_value = 0x1e,
	198	.flags = 0,
	199	},
	200	{
	201	.id = SN9C102_V4L2_CID_RESET_LEVEL,
	202	.type = V4L2_CTRL_TYPE_INTEGER,
	203	.name = "reset level",
	204	.minimum = 0x19,
	205	.maximum = 0x3f,
	206	.step = 0x01,
	207	.default_value = 0x30,
	208	.flags = 0,
	209	},
	210	{
	211	.id = SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE,
	212	.type = V4L2_CTRL_TYPE_INTEGER,
	213	.name = "pixel bias voltage",
	214	.minimum = 0x00,
	215	.maximum = 0x07,
	216	.step = 0x01,
	217	.default_value = 0x02,
218	.flags = 0,
219	},
220	},
221	.get_ctrl = &hv7131d_get_ctrl,
222	.set_ctrl = &hv7131d_set_ctrl,
223	.cropcap = {
224	.bounds = {
225	.left = 0,
226	.top = 0,
227	.width = 640,
228	.height = 480,
229	},
230	.defrect = {
231	.left = 0,
232	.top = 0,
233	.width = 640,
234	.height = 480,
235	},
236	},
237	.set_crop = &hv7131d_set_crop,
238	.pix_format = {
239	.width = 640,
240	.height = 480,
241	.pixelformat = V4L2_PIX_FMT_SBGGR8,
242	.priv = 8,
243	},
244	.set_pix_format = &hv7131d_set_pix_format
245	};
246
247
248	int sn9c102_probe_hv7131d(struct sn9c102_device* cam)
249	{
250	int r0 = 0, r1 = 0, err = 0;
251
252	err += sn9c102_write_reg(cam, 0x01, 0x01);
253	err += sn9c102_write_reg(cam, 0x00, 0x01);
254	err += sn9c102_write_reg(cam, 0x28, 0x17);
255	if (err)
256	return -EIO;
257
258	r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00);
259	r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01);
260	if (r0 < 0 \|\| r1 < 0)
261	return -EIO;
262
f423b9a8	263	if (r0 != 0x00 \|\| r1 != 0x04)
1da177e4 LT	264	return -ENODEV;
	265
	266	sn9c102_attach_sensor(cam, &hv7131d);
	267
	268	return 0;
	269	}