[net-next-2.6.git] / drivers / media / video / ak881x.c

/*
 * Driver for AK8813 / AK8814 TV-ecoders from Asahi Kasei Microsystems Co., Ltd. (AKM)
 *
 * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/videodev2.h>

#include <media/ak881x.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-common.h>
#include <media/v4l2-device.h>

#define AK881X_INTERFACE_MODE	0
#define AK881X_VIDEO_PROCESS1	1
#define AK881X_VIDEO_PROCESS2	2
#define AK881X_VIDEO_PROCESS3	3
#define AK881X_DAC_MODE		5
#define AK881X_STATUS		0x24
#define AK881X_DEVICE_ID	0x25
#define AK881X_DEVICE_REVISION	0x26

struct ak881x {
	struct v4l2_subdev subdev;
	struct ak881x_pdata *pdata;
	unsigned int lines;
	int id;	/* DEVICE_ID code V4L2_IDENT_AK881X code from v4l2-chip-ident.h */
	char revision;	/* DEVICE_REVISION content */
};

static int reg_read(struct i2c_client *client, const u8 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

static int reg_write(struct i2c_client *client, const u8 reg,
		     const u8 data)
{
	return i2c_smbus_write_byte_data(client, reg, data);
}

static int reg_set(struct i2c_client *client, const u8 reg,
		   const u8 data, u8 mask)
{
	int ret = reg_read(client, reg);
	if (ret < 0)
		return ret;
	return reg_write(client, reg, (ret & ~mask) | (data & mask));
}

static struct ak881x *to_ak881x(const struct i2c_client *client)
{
	return container_of(i2c_get_clientdata(client), struct ak881x, subdev);
}

static int ak881x_g_chip_ident(struct v4l2_subdev *sd,
			       struct v4l2_dbg_chip_ident *id)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ak881x *ak881x = to_ak881x(client);

	if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
		return -EINVAL;

	if (id->match.addr != client->addr)
		return -ENODEV;

	id->ident	= ak881x->id;
	id->revision	= ak881x->revision;

	return 0;
}

#ifdef CONFIG_VIDEO_ADV_DEBUG
static int ak881x_g_register(struct v4l2_subdev *sd,
			     struct v4l2_dbg_register *reg)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x26)
		return -EINVAL;

	if (reg->match.addr != client->addr)
		return -ENODEV;

	reg->val = reg_read(client, reg->reg);

	if (reg->val > 0xffff)
		return -EIO;

	return 0;
}

static int ak881x_s_register(struct v4l2_subdev *sd,
			     struct v4l2_dbg_register *reg)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x26)
		return -EINVAL;

	if (reg->match.addr != client->addr)
		return -ENODEV;

	if (reg_write(client, reg->reg, reg->val) < 0)
		return -EIO;

	return 0;
}
#endif

static int ak881x_try_g_mbus_fmt(struct v4l2_subdev *sd,
				 struct v4l2_mbus_framefmt *mf)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ak881x *ak881x = to_ak881x(client);

	v4l_bound_align_image(&mf->width, 0, 720, 2,
			      &mf->height, 0, ak881x->lines, 1, 0);
	mf->field	= V4L2_FIELD_INTERLACED;
	mf->code	= V4L2_MBUS_FMT_YUYV8_2X8_LE;
	mf->colorspace	= V4L2_COLORSPACE_SMPTE170M;

	return 0;
}

static int ak881x_s_mbus_fmt(struct v4l2_subdev *sd,
			     struct v4l2_mbus_framefmt *mf)
{
	if (mf->field != V4L2_FIELD_INTERLACED ||
	    mf->code != V4L2_MBUS_FMT_YUYV8_2X8_LE)
		return -EINVAL;

	return ak881x_try_g_mbus_fmt(sd, mf);
}

static int ak881x_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index,
				enum v4l2_mbus_pixelcode *code)
{
	if (index)
		return -EINVAL;

	*code = V4L2_MBUS_FMT_YUYV8_2X8_LE;
	return 0;
}

static int ak881x_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ak881x *ak881x = to_ak881x(client);

	a->bounds.left			= 0;
	a->bounds.top			= 0;
	a->bounds.width			= 720;
	a->bounds.height		= ak881x->lines;
	a->defrect			= a->bounds;
	a->type				= V4L2_BUF_TYPE_VIDEO_OUTPUT;
	a->pixelaspect.numerator	= 1;
	a->pixelaspect.denominator	= 1;

	return 0;
}

static int ak881x_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ak881x *ak881x = to_ak881x(client);
	u8 vp1;

	if (std == V4L2_STD_NTSC_443) {
		vp1 = 3;
		ak881x->lines = 480;
	} else if (std == V4L2_STD_PAL_M) {
		vp1 = 5;
		ak881x->lines = 480;
	} else if (std == V4L2_STD_PAL_60) {
		vp1 = 7;
		ak881x->lines = 480;
	} else if (std && !(std & ~V4L2_STD_PAL)) {
		vp1 = 0xf;
		ak881x->lines = 576;
	} else if (std && !(std & ~V4L2_STD_NTSC)) {
		vp1 = 0;
		ak881x->lines = 480;
	} else {
		/* No SECAM or PAL_N/Nc supported */
		return -EINVAL;
	}

	reg_set(client, AK881X_VIDEO_PROCESS1, vp1, 0xf);

	return 0;
}

static int ak881x_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ak881x *ak881x = to_ak881x(client);

	if (enable) {
		u8 dac;
		/* For colour-bar testing set bit 6 of AK881X_VIDEO_PROCESS1 */
		/* Default: composite output */
		if (ak881x->pdata->flags & AK881X_COMPONENT)
			dac = 3;
		else
			dac = 4;
		/* Turn on the DAC(s) */
		reg_write(client, AK881X_DAC_MODE, dac);
		dev_dbg(&client->dev, "chip status 0x%x\n",
			reg_read(client, AK881X_STATUS));
	} else {
		/* ...and clear bit 6 of AK881X_VIDEO_PROCESS1 here */
		reg_write(client, AK881X_DAC_MODE, 0);
		dev_dbg(&client->dev, "chip status 0x%x\n",
			reg_read(client, AK881X_STATUS));
	}

	return 0;
}

static struct v4l2_subdev_core_ops ak881x_subdev_core_ops = {
	.g_chip_ident	= ak881x_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.g_register	= ak881x_g_register,
	.s_register	= ak881x_s_register,
#endif
};

static struct v4l2_subdev_video_ops ak881x_subdev_video_ops = {
	.s_mbus_fmt	= ak881x_s_mbus_fmt,
	.g_mbus_fmt	= ak881x_try_g_mbus_fmt,
	.try_mbus_fmt	= ak881x_try_g_mbus_fmt,
	.cropcap	= ak881x_cropcap,
	.enum_mbus_fmt	= ak881x_enum_mbus_fmt,
	.s_std_output	= ak881x_s_std_output,
	.s_stream	= ak881x_s_stream,
};

static struct v4l2_subdev_ops ak881x_subdev_ops = {
	.core	= &ak881x_subdev_core_ops,
	.video	= &ak881x_subdev_video_ops,
};

static int ak881x_probe(struct i2c_client *client,
			const struct i2c_device_id *did)
{
	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
	struct ak881x *ak881x;
	u8 ifmode, data;

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
		dev_warn(&adapter->dev,
			 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
		return -EIO;
	}

	ak881x = kzalloc(sizeof(struct ak881x), GFP_KERNEL);
	if (!ak881x)
		return -ENOMEM;

	v4l2_i2c_subdev_init(&ak881x->subdev, client, &ak881x_subdev_ops);

	data = reg_read(client, AK881X_DEVICE_ID);

	switch (data) {
	case 0x13:
		ak881x->id = V4L2_IDENT_AK8813;
		break;
	case 0x14:
		ak881x->id = V4L2_IDENT_AK8814;
		break;
	default:
		dev_err(&client->dev,
			"No ak881x chip detected, register read %x\n", data);
		kfree(ak881x);
		return -ENODEV;
	}

	ak881x->revision = reg_read(client, AK881X_DEVICE_REVISION);
	ak881x->pdata = client->dev.platform_data;

	if (ak881x->pdata) {
		if (ak881x->pdata->flags & AK881X_FIELD)
			ifmode = 4;
		else
			ifmode = 0;

		switch (ak881x->pdata->flags & AK881X_IF_MODE_MASK) {
		case AK881X_IF_MODE_BT656:
			ifmode |= 1;
			break;
		case AK881X_IF_MODE_MASTER:
			ifmode |= 2;
			break;
		case AK881X_IF_MODE_SLAVE:
		default:
			break;
		}

		dev_dbg(&client->dev, "IF mode %x\n", ifmode);

		/*
		 * "Line Blanking No." seems to be the same as the number of
		 * "black" lines on, e.g., SuperH VOU, whose default value of 20
		 * "incidentally" matches ak881x' default
		 */
		reg_write(client, AK881X_INTERFACE_MODE, ifmode | (20 << 3));
	}

	/* Hardware default: NTSC-M */
	ak881x->lines = 480;

	dev_info(&client->dev, "Detected an ak881x chip ID %x, revision %x\n",
		 data, ak881x->revision);

	return 0;
}

static int ak881x_remove(struct i2c_client *client)
{
	struct ak881x *ak881x = to_ak881x(client);

	v4l2_device_unregister_subdev(&ak881x->subdev);
	kfree(ak881x);

	return 0;
}

static const struct i2c_device_id ak881x_id[] = {
	{ "ak8813", 0 },
	{ "ak8814", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ak881x_id);

static struct i2c_driver ak881x_i2c_driver = {
	.driver = {
		.name = "ak881x",
	},
	.probe		= ak881x_probe,
	.remove		= ak881x_remove,
	.id_table	= ak881x_id,
};

static int __init ak881x_module_init(void)
{
	return i2c_add_driver(&ak881x_i2c_driver);
}

static void __exit ak881x_module_exit(void)
{
	i2c_del_driver(&ak881x_i2c_driver);
}

module_init(ak881x_module_init);
module_exit(ak881x_module_exit);

MODULE_DESCRIPTION("TV-output driver for ak8813/ak8814");
MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
aec11e5d GL	1	/*
	2	* Driver for AK8813 / AK8814 TV-ecoders from Asahi Kasei Microsystems Co., Ltd. (AKM)
	3	*
	4	* Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
	11	#include <linux/i2c.h>
	12	#include <linux/init.h>
	13	#include <linux/platform_device.h>
1db2c22b	14	#include <linux/slab.h>
aec11e5d GL	15	#include <linux/videodev2.h>
	16
	17	#include <media/ak881x.h>
	18	#include <media/v4l2-chip-ident.h>
	19	#include <media/v4l2-common.h>
	20	#include <media/v4l2-device.h>
	21
	22	#define AK881X_INTERFACE_MODE 0
	23	#define AK881X_VIDEO_PROCESS1 1
	24	#define AK881X_VIDEO_PROCESS2 2
	25	#define AK881X_VIDEO_PROCESS3 3
	26	#define AK881X_DAC_MODE 5
	27	#define AK881X_STATUS 0x24
	28	#define AK881X_DEVICE_ID 0x25
	29	#define AK881X_DEVICE_REVISION 0x26
	30
	31	struct ak881x {
	32	struct v4l2_subdev subdev;
	33	struct ak881x_pdata *pdata;
	34	unsigned int lines;
	35	int id; /* DEVICE_ID code V4L2_IDENT_AK881X code from v4l2-chip-ident.h */
	36	char revision; /* DEVICE_REVISION content */
	37	};
	38
	39	static int reg_read(struct i2c_client *client, const u8 reg)
	40	{
	41	return i2c_smbus_read_byte_data(client, reg);
	42	}
	43
	44	static int reg_write(struct i2c_client *client, const u8 reg,
	45	const u8 data)
	46	{
	47	return i2c_smbus_write_byte_data(client, reg, data);
	48	}
	49
	50	static int reg_set(struct i2c_client *client, const u8 reg,
	51	const u8 data, u8 mask)
	52	{
	53	int ret = reg_read(client, reg);
	54	if (ret < 0)
	55	return ret;
	56	return reg_write(client, reg, (ret & ~mask) \| (data & mask));
	57	}
	58
	59	static struct ak881x to_ak881x(const struct i2c_client client)
	60	{
	61	return container_of(i2c_get_clientdata(client), struct ak881x, subdev);
	62	}
	63
	64	static int ak881x_g_chip_ident(struct v4l2_subdev *sd,
	65	struct v4l2_dbg_chip_ident *id)
	66	{
	67	struct i2c_client *client = v4l2_get_subdevdata(sd);
	68	struct ak881x *ak881x = to_ak881x(client);
	69
	70	if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
	71	return -EINVAL;
	72
	73	if (id->match.addr != client->addr)
	74	return -ENODEV;
	75
	76	id->ident = ak881x->id;
	77	id->revision = ak881x->revision;
	78
79	return 0;
80	}
81
82	#ifdef CONFIG_VIDEO_ADV_DEBUG
83	static int ak881x_g_register(struct v4l2_subdev *sd,
84	struct v4l2_dbg_register *reg)
85	{
86	struct i2c_client *client = v4l2_get_subdevdata(sd);
87
88	if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR \|\| reg->reg > 0x26)
89	return -EINVAL;
90
91	if (reg->match.addr != client->addr)
92	return -ENODEV;
93
94	reg->val = reg_read(client, reg->reg);
95
96	if (reg->val > 0xffff)
97	return -EIO;
98
99	return 0;
100	}
101
102	static int ak881x_s_register(struct v4l2_subdev *sd,
103	struct v4l2_dbg_register *reg)
104	{
105	struct i2c_client *client = v4l2_get_subdevdata(sd);
106
107	if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR \|\| reg->reg > 0x26)
108	return -EINVAL;
109
110	if (reg->match.addr != client->addr)
111	return -ENODEV;
112
113	if (reg_write(client, reg->reg, reg->val) < 0)
114	return -EIO;
115
116	return 0;
117	}
118	#endif
119
120	static int ak881x_try_g_mbus_fmt(struct v4l2_subdev *sd,
121	struct v4l2_mbus_framefmt *mf)
122	{
123	struct i2c_client *client = v4l2_get_subdevdata(sd);
124	struct ak881x *ak881x = to_ak881x(client);
125
126	v4l_bound_align_image(&mf->width, 0, 720, 2,
127	&mf->height, 0, ak881x->lines, 1, 0);
128	mf->field = V4L2_FIELD_INTERLACED;
129	mf->code = V4L2_MBUS_FMT_YUYV8_2X8_LE;
130	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
131
132	return 0;
133	}
134
135	static int ak881x_s_mbus_fmt(struct v4l2_subdev *sd,
136	struct v4l2_mbus_framefmt *mf)
137	{
138	if (mf->field != V4L2_FIELD_INTERLACED \|\|
139	mf->code != V4L2_MBUS_FMT_YUYV8_2X8_LE)
140	return -EINVAL;
141
142	return ak881x_try_g_mbus_fmt(sd, mf);
143	}
144
3805f201	145	static int ak881x_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index,
aec11e5d GL	146	enum v4l2_mbus_pixelcode *code)
	147	{
	148	if (index)
	149	return -EINVAL;
	150
	151	*code = V4L2_MBUS_FMT_YUYV8_2X8_LE;
	152	return 0;
	153	}
	154
	155	static int ak881x_cropcap(struct v4l2_subdev sd, struct v4l2_cropcap a)
	156	{
	157	struct i2c_client *client = v4l2_get_subdevdata(sd);
	158	struct ak881x *ak881x = to_ak881x(client);
	159
	160	a->bounds.left = 0;
	161	a->bounds.top = 0;
	162	a->bounds.width = 720;
	163	a->bounds.height = ak881x->lines;
	164	a->defrect = a->bounds;
	165	a->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
	166	a->pixelaspect.numerator = 1;
	167	a->pixelaspect.denominator = 1;
	168
	169	return 0;
	170	}
	171
	172	static int ak881x_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
	173	{
	174	struct i2c_client *client = v4l2_get_subdevdata(sd);
	175	struct ak881x *ak881x = to_ak881x(client);
	176	u8 vp1;
	177
	178	if (std == V4L2_STD_NTSC_443) {
	179	vp1 = 3;
	180	ak881x->lines = 480;
	181	} else if (std == V4L2_STD_PAL_M) {
	182	vp1 = 5;
	183	ak881x->lines = 480;
	184	} else if (std == V4L2_STD_PAL_60) {
	185	vp1 = 7;
	186	ak881x->lines = 480;
	187	} else if (std && !(std & ~V4L2_STD_PAL)) {
	188	vp1 = 0xf;
	189	ak881x->lines = 576;
	190	} else if (std && !(std & ~V4L2_STD_NTSC)) {
	191	vp1 = 0;
	192	ak881x->lines = 480;
	193	} else {
	194	/* No SECAM or PAL_N/Nc supported */
	195	return -EINVAL;
	196	}
	197
	198	reg_set(client, AK881X_VIDEO_PROCESS1, vp1, 0xf);
	199
	200	return 0;
	201	}
	202
	203	static int ak881x_s_stream(struct v4l2_subdev *sd, int enable)
	204	{
	205	struct i2c_client *client = v4l2_get_subdevdata(sd);
	206	struct ak881x *ak881x = to_ak881x(client);
	207
	208	if (enable) {
	209	u8 dac;
210	/* For colour-bar testing set bit 6 of AK881X_VIDEO_PROCESS1 */
211	/* Default: composite output */
212	if (ak881x->pdata->flags & AK881X_COMPONENT)
213	dac = 3;
214	else
215	dac = 4;
216	/* Turn on the DAC(s) */
217	reg_write(client, AK881X_DAC_MODE, dac);
218	dev_dbg(&client->dev, "chip status 0x%x\n",
219	reg_read(client, AK881X_STATUS));
220	} else {
221	/* ...and clear bit 6 of AK881X_VIDEO_PROCESS1 here */
222	reg_write(client, AK881X_DAC_MODE, 0);
223	dev_dbg(&client->dev, "chip status 0x%x\n",
224	reg_read(client, AK881X_STATUS));
225	}
226
227	return 0;
228	}
229
230	static struct v4l2_subdev_core_ops ak881x_subdev_core_ops = {
231	.g_chip_ident = ak881x_g_chip_ident,
232	#ifdef CONFIG_VIDEO_ADV_DEBUG
233	.g_register = ak881x_g_register,
234	.s_register = ak881x_s_register,
235	#endif
236	};
237
238	static struct v4l2_subdev_video_ops ak881x_subdev_video_ops = {
239	.s_mbus_fmt = ak881x_s_mbus_fmt,
240	.g_mbus_fmt = ak881x_try_g_mbus_fmt,
241	.try_mbus_fmt = ak881x_try_g_mbus_fmt,
242	.cropcap = ak881x_cropcap,
243	.enum_mbus_fmt = ak881x_enum_mbus_fmt,
244	.s_std_output = ak881x_s_std_output,
245	.s_stream = ak881x_s_stream,
246	};
247
248	static struct v4l2_subdev_ops ak881x_subdev_ops = {
249	.core = &ak881x_subdev_core_ops,
250	.video = &ak881x_subdev_video_ops,
251	};
252
253	static int ak881x_probe(struct i2c_client *client,
254	const struct i2c_device_id *did)
255	{
256	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
257	struct ak881x *ak881x;
258	u8 ifmode, data;
259
260	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
261	dev_warn(&adapter->dev,
262	"I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
263	return -EIO;
264	}
265
266	ak881x = kzalloc(sizeof(struct ak881x), GFP_KERNEL);
267	if (!ak881x)
268	return -ENOMEM;
269
270	v4l2_i2c_subdev_init(&ak881x->subdev, client, &ak881x_subdev_ops);
271
272	data = reg_read(client, AK881X_DEVICE_ID);
273
274	switch (data) {
275	case 0x13:
276	ak881x->id = V4L2_IDENT_AK8813;
277	break;
278	case 0x14:
279	ak881x->id = V4L2_IDENT_AK8814;
280	break;
281	default:
282	dev_err(&client->dev,
283	"No ak881x chip detected, register read %x\n", data);
284	kfree(ak881x);
285	return -ENODEV;
286	}
287
288	ak881x->revision = reg_read(client, AK881X_DEVICE_REVISION);
289	ak881x->pdata = client->dev.platform_data;
290
291	if (ak881x->pdata) {
292	if (ak881x->pdata->flags & AK881X_FIELD)
293	ifmode = 4;
294	else
295	ifmode = 0;
296
297	switch (ak881x->pdata->flags & AK881X_IF_MODE_MASK) {
298	case AK881X_IF_MODE_BT656:
299	ifmode \|= 1;
300	break;
301	case AK881X_IF_MODE_MASTER:
302	ifmode \|= 2;
303	break;
304	case AK881X_IF_MODE_SLAVE:
305	default:
306	break;
307	}
308
309	dev_dbg(&client->dev, "IF mode %x\n", ifmode);
310
311	/*
312	* "Line Blanking No." seems to be the same as the number of
313	* "black" lines on, e.g., SuperH VOU, whose default value of 20
314	* "incidentally" matches ak881x' default
315	*/
316	reg_write(client, AK881X_INTERFACE_MODE, ifmode \| (20 << 3));
317	}
318
319	/* Hardware default: NTSC-M */
320	ak881x->lines = 480;
321
322	dev_info(&client->dev, "Detected an ak881x chip ID %x, revision %x\n",
323	data, ak881x->revision);
324
325	return 0;
326	}
327
328	static int ak881x_remove(struct i2c_client *client)
329	{
330	struct ak881x *ak881x = to_ak881x(client);
331
332	v4l2_device_unregister_subdev(&ak881x->subdev);
333	kfree(ak881x);
334
335	return 0;
336	}
337
338	static const struct i2c_device_id ak881x_id[] = {
339	{ "ak8813", 0 },
340	{ "ak8814", 0 },
341	{ }
342	};
343	MODULE_DEVICE_TABLE(i2c, ak881x_id);
344
345	static struct i2c_driver ak881x_i2c_driver = {
346	.driver = {
347	.name = "ak881x",
348	},
349	.probe = ak881x_probe,
350	.remove = ak881x_remove,
351	.id_table = ak881x_id,
352	};
353
354	static int __init ak881x_module_init(void)
355	{
356	return i2c_add_driver(&ak881x_i2c_driver);
357	}
358
359	static void __exit ak881x_module_exit(void)
360	{
361	i2c_del_driver(&ak881x_i2c_driver);
362	}
363
364	module_init(ak881x_module_init);
365	module_exit(ak881x_module_exit);
366
367	MODULE_DESCRIPTION("TV-output driver for ak8813/ak8814");
368	MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
369	MODULE_LICENSE("GPL v2");