[net-next-2.6.git] / drivers / staging / go7007 / wis-tw2804.c

/*
 * Copyright (C) 2005-2006 Micronas USA Inc.
 *
 * 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.
 *
 * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
 */

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

#include "wis-i2c.h"

struct wis_tw2804 {
	int channel;
	int norm;
	int brightness;
	int contrast;
	int saturation;
	int hue;
};

static u8 global_registers[] =
{
	0x39, 0x00,
	0x3a, 0xff,
	0x3b, 0x84,
	0x3c, 0x80,
	0x3d, 0x80,
	0x3e, 0x82,
	0x3f, 0x82,
	0xff, 0xff, /* Terminator (reg 0xff does not exist) */
};

static u8 channel_registers[] =
{
	0x01, 0xc4,
	0x02, 0xa5,
	0x03, 0x20,
	0x04, 0xd0,
	0x05, 0x20,
	0x06, 0xd0,
	0x07, 0x88,
	0x08, 0x20,
	0x09, 0x07,
	0x0a, 0xf0,
	0x0b, 0x07,
	0x0c, 0xf0,
	0x0d, 0x40,
	0x0e, 0xd2,
	0x0f, 0x80,
	0x10, 0x80,
	0x11, 0x80,
	0x12, 0x80,
	0x13, 0x1f,
	0x14, 0x00,
	0x15, 0x00,
	0x16, 0x00,
	0x17, 0x00,
	0x18, 0xff,
	0x19, 0xff,
	0x1a, 0xff,
	0x1b, 0xff,
	0x1c, 0xff,
	0x1d, 0xff,
	0x1e, 0xff,
	0x1f, 0xff,
	0x20, 0x07,
	0x21, 0x07,
	0x22, 0x00,
	0x23, 0x91,
	0x24, 0x51,
	0x25, 0x03,
	0x26, 0x00,
	0x27, 0x00,
	0x28, 0x00,
	0x29, 0x00,
	0x2a, 0x00,
	0x2b, 0x00,
	0x2c, 0x00,
	0x2d, 0x00,
	0x2e, 0x00,
	0x2f, 0x00,
	0x30, 0x00,
	0x31, 0x00,
	0x32, 0x00,
	0x33, 0x00,
	0x34, 0x00,
	0x35, 0x00,
	0x36, 0x00,
	0x37, 0x00,
	0xff, 0xff, /* Terminator (reg 0xff does not exist) */
};

static int write_reg(struct i2c_client *client, u8 reg, u8 value, int channel)
{
	return i2c_smbus_write_byte_data(client, reg | (channel << 6), value);
}

static int write_regs(struct i2c_client *client, u8 *regs, int channel)
{
	int i;

	for (i = 0; regs[i] != 0xff; i += 2)
		if (i2c_smbus_write_byte_data(client,
				regs[i] | (channel << 6), regs[i + 1]) < 0)
			return -1;
	return 0;
}

static int wis_tw2804_command(struct i2c_client *client,
				unsigned int cmd, void *arg)
{
	struct wis_tw2804 *dec = i2c_get_clientdata(client);

	if (cmd == DECODER_SET_CHANNEL) {
		int *input = arg;

		if (*input < 0 || *input > 3) {
			printk(KERN_ERR "wis-tw2804: channel %d is not "
					"between 0 and 3!\n", *input);
			return 0;
		}
		dec->channel = *input;
		printk(KERN_DEBUG "wis-tw2804: initializing TW2804 "
				"channel %d\n", dec->channel);
		if (dec->channel == 0 &&
				write_regs(client, global_registers, 0) < 0) {
			printk(KERN_ERR "wis-tw2804: error initializing "
					"TW2804 global registers\n");
			return 0;
		}
		if (write_regs(client, channel_registers, dec->channel) < 0) {
			printk(KERN_ERR "wis-tw2804: error initializing "
					"TW2804 channel %d\n", dec->channel);
			return 0;
		}
		return 0;
	}

	if (dec->channel < 0) {
		printk(KERN_DEBUG "wis-tw2804: ignoring command %08x until "
				"channel number is set\n", cmd);
		return 0;
	}

	switch (cmd) {
	case VIDIOC_S_STD:
	{
		v4l2_std_id *input = arg;
		u8 regs[] = {
			0x01, *input & V4L2_STD_NTSC ? 0xc4 : 0x84,
			0x09, *input & V4L2_STD_NTSC ? 0x07 : 0x04,
			0x0a, *input & V4L2_STD_NTSC ? 0xf0 : 0x20,
			0x0b, *input & V4L2_STD_NTSC ? 0x07 : 0x04,
			0x0c, *input & V4L2_STD_NTSC ? 0xf0 : 0x20,
			0x0d, *input & V4L2_STD_NTSC ? 0x40 : 0x4a,
			0x16, *input & V4L2_STD_NTSC ? 0x00 : 0x40,
			0x17, *input & V4L2_STD_NTSC ? 0x00 : 0x40,
			0x20, *input & V4L2_STD_NTSC ? 0x07 : 0x0f,
			0x21, *input & V4L2_STD_NTSC ? 0x07 : 0x0f,
			0xff,	0xff,
		};
		write_regs(client, regs, dec->channel);
		dec->norm = *input;
		break;
	}
	case VIDIOC_QUERYCTRL:
	{
		struct v4l2_queryctrl *ctrl = arg;

		switch (ctrl->id) {
		case V4L2_CID_BRIGHTNESS:
			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
			strncpy(ctrl->name, "Brightness", sizeof(ctrl->name));
			ctrl->minimum = 0;
			ctrl->maximum = 255;
			ctrl->step = 1;
			ctrl->default_value = 128;
			ctrl->flags = 0;
			break;
		case V4L2_CID_CONTRAST:
			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
			strncpy(ctrl->name, "Contrast", sizeof(ctrl->name));
			ctrl->minimum = 0;
			ctrl->maximum = 255;
			ctrl->step = 1;
			ctrl->default_value = 128;
			ctrl->flags = 0;
			break;
		case V4L2_CID_SATURATION:
			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
			strncpy(ctrl->name, "Saturation", sizeof(ctrl->name));
			ctrl->minimum = 0;
			ctrl->maximum = 255;
			ctrl->step = 1;
			ctrl->default_value = 128;
			ctrl->flags = 0;
			break;
		case V4L2_CID_HUE:
			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
			strncpy(ctrl->name, "Hue", sizeof(ctrl->name));
			ctrl->minimum = 0;
			ctrl->maximum = 255;
			ctrl->step = 1;
			ctrl->default_value = 128;
			ctrl->flags = 0;
			break;
		}
		break;
	}
	case VIDIOC_S_CTRL:
	{
		struct v4l2_control *ctrl = arg;

		switch (ctrl->id) {
		case V4L2_CID_BRIGHTNESS:
			if (ctrl->value > 255)
				dec->brightness = 255;
			else if (ctrl->value < 0)
				dec->brightness = 0;
			else
				dec->brightness = ctrl->value;
			write_reg(client, 0x12, dec->brightness, dec->channel);
			break;
		case V4L2_CID_CONTRAST:
			if (ctrl->value > 255)
				dec->contrast = 255;
			else if (ctrl->value < 0)
				dec->contrast = 0;
			else
				dec->contrast = ctrl->value;
			write_reg(client, 0x11, dec->contrast, dec->channel);
			break;
		case V4L2_CID_SATURATION:
			if (ctrl->value > 255)
				dec->saturation = 255;
			else if (ctrl->value < 0)
				dec->saturation = 0;
			else
				dec->saturation = ctrl->value;
			write_reg(client, 0x10, dec->saturation, dec->channel);
			break;
		case V4L2_CID_HUE:
			if (ctrl->value > 255)
				dec->hue = 255;
			else if (ctrl->value < 0)
				dec->hue = 0;
			else
				dec->hue = ctrl->value;
			write_reg(client, 0x0f, dec->hue, dec->channel);
			break;
		}
		break;
	}
	case VIDIOC_G_CTRL:
	{
		struct v4l2_control *ctrl = arg;

		switch (ctrl->id) {
		case V4L2_CID_BRIGHTNESS:
			ctrl->value = dec->brightness;
			break;
		case V4L2_CID_CONTRAST:
			ctrl->value = dec->contrast;
			break;
		case V4L2_CID_SATURATION:
			ctrl->value = dec->saturation;
			break;
		case V4L2_CID_HUE:
			ctrl->value = dec->hue;
			break;
		}
		break;
	}
	default:
		break;
	}
	return 0;
}

static int wis_tw2804_probe(struct i2c_client *client,
			    const struct i2c_device_id *id)
{
	struct i2c_adapter *adapter = client->adapter;
	struct wis_tw2804 *dec;

	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -ENODEV;

	dec = kmalloc(sizeof(struct wis_tw2804), GFP_KERNEL);
	if (dec == NULL)
		return -ENOMEM;

	dec->channel = -1;
	dec->norm = V4L2_STD_NTSC;
	dec->brightness = 128;
	dec->contrast = 128;
	dec->saturation = 128;
	dec->hue = 128;
	i2c_set_clientdata(client, dec);

	printk(KERN_DEBUG "wis-tw2804: creating TW2804 at address %d on %s\n",
		client->addr, adapter->name);

	return 0;
}

static int wis_tw2804_remove(struct i2c_client *client)
{
	struct wis_tw2804 *dec = i2c_get_clientdata(client);

	kfree(dec);
	return 0;
}

static const struct i2c_device_id wis_tw2804_id[] = {
	{ "wis_tw2804", 0 },
	{ }
};

static struct i2c_driver wis_tw2804_driver = {
	.driver = {
		.name	= "WIS TW2804 I2C driver",
	},
	.probe		= wis_tw2804_probe,
	.remove		= wis_tw2804_remove,
	.command	= wis_tw2804_command,
	.id_table	= wis_tw2804_id,
};

static int __init wis_tw2804_init(void)
{
	return i2c_add_driver(&wis_tw2804_driver);
}

static void __exit wis_tw2804_cleanup(void)
{
	i2c_del_driver(&wis_tw2804_driver);
}

module_init(wis_tw2804_init);
module_exit(wis_tw2804_cleanup);

MODULE_LICENSE("GPL v2");
Commit	Line	Data
866b8695 GKH	1	/*
	2	* Copyright (C) 2005-2006 Micronas USA Inc.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License (Version 2) as
	6	* published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program; if not, write to the Free Software Foundation,
	15	* Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
	16	*/
	17
	18	#include <linux/module.h>
	19	#include <linux/init.h>
866b8695	20	#include <linux/i2c.h>
df20d69e	21	#include <linux/videodev2.h>
866b8695	22	#include <linux/ioctl.h>
5a0e3ad6	23	#include <linux/slab.h>
866b8695 GKH	24
	25	#include "wis-i2c.h"
	26
	27	struct wis_tw2804 {
	28	int channel;
	29	int norm;
	30	int brightness;
	31	int contrast;
	32	int saturation;
	33	int hue;
	34	};
	35
	36	static u8 global_registers[] =
	37	{
	38	0x39, 0x00,
	39	0x3a, 0xff,
	40	0x3b, 0x84,
	41	0x3c, 0x80,
	42	0x3d, 0x80,
	43	0x3e, 0x82,
	44	0x3f, 0x82,
	45	0xff, 0xff, /* Terminator (reg 0xff does not exist) */
	46	};
	47
	48	static u8 channel_registers[] =
	49	{
	50	0x01, 0xc4,
	51	0x02, 0xa5,
	52	0x03, 0x20,
	53	0x04, 0xd0,
	54	0x05, 0x20,
	55	0x06, 0xd0,
	56	0x07, 0x88,
	57	0x08, 0x20,
	58	0x09, 0x07,
	59	0x0a, 0xf0,
	60	0x0b, 0x07,
	61	0x0c, 0xf0,
	62	0x0d, 0x40,
	63	0x0e, 0xd2,
	64	0x0f, 0x80,
	65	0x10, 0x80,
	66	0x11, 0x80,
	67	0x12, 0x80,
	68	0x13, 0x1f,
	69	0x14, 0x00,
	70	0x15, 0x00,
	71	0x16, 0x00,
	72	0x17, 0x00,
	73	0x18, 0xff,
	74	0x19, 0xff,
	75	0x1a, 0xff,
	76	0x1b, 0xff,
	77	0x1c, 0xff,
	78	0x1d, 0xff,
	79	0x1e, 0xff,
	80	0x1f, 0xff,
	81	0x20, 0x07,
	82	0x21, 0x07,
	83	0x22, 0x00,
	84	0x23, 0x91,
	85	0x24, 0x51,
	86	0x25, 0x03,
	87	0x26, 0x00,
88	0x27, 0x00,
89	0x28, 0x00,
90	0x29, 0x00,
91	0x2a, 0x00,
92	0x2b, 0x00,
93	0x2c, 0x00,
94	0x2d, 0x00,
95	0x2e, 0x00,
96	0x2f, 0x00,
97	0x30, 0x00,
98	0x31, 0x00,
99	0x32, 0x00,
100	0x33, 0x00,
101	0x34, 0x00,
102	0x35, 0x00,
103	0x36, 0x00,
104	0x37, 0x00,
105	0xff, 0xff, /* Terminator (reg 0xff does not exist) */
106	};
107
108	static int write_reg(struct i2c_client *client, u8 reg, u8 value, int channel)
109	{
110	return i2c_smbus_write_byte_data(client, reg \| (channel << 6), value);
111	}
112
113	static int write_regs(struct i2c_client client, u8 regs, int channel)
114	{
115	int i;
116
117	for (i = 0; regs[i] != 0xff; i += 2)
118	if (i2c_smbus_write_byte_data(client,
119	regs[i] \| (channel << 6), regs[i + 1]) < 0)
120	return -1;
121	return 0;
122	}
123
124	static int wis_tw2804_command(struct i2c_client *client,
125	unsigned int cmd, void *arg)
126	{
127	struct wis_tw2804 *dec = i2c_get_clientdata(client);
128
129	if (cmd == DECODER_SET_CHANNEL) {
130	int *input = arg;
131
132	if (input < 0 \|\| input > 3) {
133	printk(KERN_ERR "wis-tw2804: channel %d is not "
134	"between 0 and 3!\n", *input);
135	return 0;
136	}
137	dec->channel = *input;
138	printk(KERN_DEBUG "wis-tw2804: initializing TW2804 "
139	"channel %d\n", dec->channel);
140	if (dec->channel == 0 &&
141	write_regs(client, global_registers, 0) < 0) {
142	printk(KERN_ERR "wis-tw2804: error initializing "
143	"TW2804 global registers\n");
144	return 0;
145	}
146	if (write_regs(client, channel_registers, dec->channel) < 0) {
147	printk(KERN_ERR "wis-tw2804: error initializing "
148	"TW2804 channel %d\n", dec->channel);
149	return 0;
150	}
151	return 0;
152	}
153
154	if (dec->channel < 0) {
155	printk(KERN_DEBUG "wis-tw2804: ignoring command %08x until "
156	"channel number is set\n", cmd);
157	return 0;
158	}
159
160	switch (cmd) {
df20d69e	161	case VIDIOC_S_STD:
866b8695	162	{
df20d69e	163	v4l2_std_id *input = arg;
866b8695	164	u8 regs[] = {
df20d69e RC	165	0x01, *input & V4L2_STD_NTSC ? 0xc4 : 0x84,
	166	0x09, *input & V4L2_STD_NTSC ? 0x07 : 0x04,
	167	0x0a, *input & V4L2_STD_NTSC ? 0xf0 : 0x20,
	168	0x0b, *input & V4L2_STD_NTSC ? 0x07 : 0x04,
	169	0x0c, *input & V4L2_STD_NTSC ? 0xf0 : 0x20,
	170	0x0d, *input & V4L2_STD_NTSC ? 0x40 : 0x4a,
	171	0x16, *input & V4L2_STD_NTSC ? 0x00 : 0x40,
	172	0x17, *input & V4L2_STD_NTSC ? 0x00 : 0x40,
	173	0x20, *input & V4L2_STD_NTSC ? 0x07 : 0x0f,
	174	0x21, *input & V4L2_STD_NTSC ? 0x07 : 0x0f,
866b8695 GKH	175	0xff, 0xff,
	176	};
	177	write_regs(client, regs, dec->channel);
	178	dec->norm = *input;
	179	break;
	180	}
	181	case VIDIOC_QUERYCTRL:
	182	{
	183	struct v4l2_queryctrl *ctrl = arg;
	184
	185	switch (ctrl->id) {
	186	case V4L2_CID_BRIGHTNESS:
	187	ctrl->type = V4L2_CTRL_TYPE_INTEGER;
	188	strncpy(ctrl->name, "Brightness", sizeof(ctrl->name));
	189	ctrl->minimum = 0;
	190	ctrl->maximum = 255;
	191	ctrl->step = 1;
	192	ctrl->default_value = 128;
	193	ctrl->flags = 0;
	194	break;
	195	case V4L2_CID_CONTRAST:
	196	ctrl->type = V4L2_CTRL_TYPE_INTEGER;
	197	strncpy(ctrl->name, "Contrast", sizeof(ctrl->name));
	198	ctrl->minimum = 0;
	199	ctrl->maximum = 255;
	200	ctrl->step = 1;
	201	ctrl->default_value = 128;
	202	ctrl->flags = 0;
	203	break;
	204	case V4L2_CID_SATURATION:
	205	ctrl->type = V4L2_CTRL_TYPE_INTEGER;
	206	strncpy(ctrl->name, "Saturation", sizeof(ctrl->name));
	207	ctrl->minimum = 0;
	208	ctrl->maximum = 255;
	209	ctrl->step = 1;
	210	ctrl->default_value = 128;
	211	ctrl->flags = 0;
	212	break;
	213	case V4L2_CID_HUE:
	214	ctrl->type = V4L2_CTRL_TYPE_INTEGER;
	215	strncpy(ctrl->name, "Hue", sizeof(ctrl->name));
	216	ctrl->minimum = 0;
	217	ctrl->maximum = 255;
	218	ctrl->step = 1;
	219	ctrl->default_value = 128;
	220	ctrl->flags = 0;
	221	break;
	222	}
	223	break;
	224	}
	225	case VIDIOC_S_CTRL:
	226	{
	227	struct v4l2_control *ctrl = arg;
	228
	229	switch (ctrl->id) {
	230	case V4L2_CID_BRIGHTNESS:
	231	if (ctrl->value > 255)
	232	dec->brightness = 255;
	233	else if (ctrl->value < 0)
	234	dec->brightness = 0;
	235	else
	236	dec->brightness = ctrl->value;
	237	write_reg(client, 0x12, dec->brightness, dec->channel);
	238	break;
239	case V4L2_CID_CONTRAST:
240	if (ctrl->value > 255)
241	dec->contrast = 255;
242	else if (ctrl->value < 0)
243	dec->contrast = 0;
244	else
245	dec->contrast = ctrl->value;
246	write_reg(client, 0x11, dec->contrast, dec->channel);
247	break;
248	case V4L2_CID_SATURATION:
249	if (ctrl->value > 255)
250	dec->saturation = 255;
251	else if (ctrl->value < 0)
252	dec->saturation = 0;
253	else
254	dec->saturation = ctrl->value;
255	write_reg(client, 0x10, dec->saturation, dec->channel);
256	break;
257	case V4L2_CID_HUE:
258	if (ctrl->value > 255)
259	dec->hue = 255;
260	else if (ctrl->value < 0)
261	dec->hue = 0;
262	else
263	dec->hue = ctrl->value;
264	write_reg(client, 0x0f, dec->hue, dec->channel);
265	break;
266	}
267	break;
268	}
269	case VIDIOC_G_CTRL:
270	{
271	struct v4l2_control *ctrl = arg;
272
273	switch (ctrl->id) {
274	case V4L2_CID_BRIGHTNESS:
275	ctrl->value = dec->brightness;
276	break;
277	case V4L2_CID_CONTRAST:
278	ctrl->value = dec->contrast;
279	break;
280	case V4L2_CID_SATURATION:
281	ctrl->value = dec->saturation;
282	break;
283	case V4L2_CID_HUE:
284	ctrl->value = dec->hue;
285	break;
286	}
287	break;
288	}
289	default:
290	break;
291	}
292	return 0;
293	}
294
7400516a JD	295	static int wis_tw2804_probe(struct i2c_client *client,
7400516a JD	296	const struct i2c_device_id *id)
866b8695	297	{
7400516a	298	struct i2c_adapter *adapter = client->adapter;
866b8695 GKH	299	struct wis_tw2804 *dec;
	300
	301	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
7400516a	302	return -ENODEV;
866b8695 GKH	303
866b8695 GKH	304	dec = kmalloc(sizeof(struct wis_tw2804), GFP_KERNEL);
7400516a	305	if (dec == NULL)
866b8695	306	return -ENOMEM;
7400516a	307
866b8695	308	dec->channel = -1;
df20d69e	309	dec->norm = V4L2_STD_NTSC;
866b8695 GKH	310	dec->brightness = 128;
	311	dec->contrast = 128;
	312	dec->saturation = 128;
	313	dec->hue = 128;
	314	i2c_set_clientdata(client, dec);
	315
	316	printk(KERN_DEBUG "wis-tw2804: creating TW2804 at address %d on %s\n",
7400516a	317	client->addr, adapter->name);
866b8695	318
866b8695 GKH	319	return 0;
	320	}
	321
7400516a	322	static int wis_tw2804_remove(struct i2c_client *client)
866b8695 GKH	323	{
866b8695 GKH	324	struct wis_tw2804 *dec = i2c_get_clientdata(client);
866b8695	325
866b8695 GKH	326	kfree(dec);
	327	return 0;
	328	}
	329
b76a3263	330	static const struct i2c_device_id wis_tw2804_id[] = {
7400516a JD	331	{ "wis_tw2804", 0 },
	332	{ }
	333	};
	334
866b8695 GKH	335	static struct i2c_driver wis_tw2804_driver = {
	336	.driver = {
	337	.name = "WIS TW2804 I2C driver",
	338	},
7400516a JD	339	.probe = wis_tw2804_probe,
7400516a JD	340	.remove = wis_tw2804_remove,
866b8695	341	.command = wis_tw2804_command,
7400516a	342	.id_table = wis_tw2804_id,
866b8695 GKH	343	};
	344
	345	static int __init wis_tw2804_init(void)
	346	{
7400516a	347	return i2c_add_driver(&wis_tw2804_driver);
866b8695 GKH	348	}
	349
	350	static void __exit wis_tw2804_cleanup(void)
	351	{
866b8695 GKH	352	i2c_del_driver(&wis_tw2804_driver);
	353	}
	354
	355	module_init(wis_tw2804_init);
	356	module_exit(wis_tw2804_cleanup);
	357
	358	MODULE_LICENSE("GPL v2");