[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / dvb / dvb-usb / au6610.c

/*
 * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
 *
 * Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
 *
 *    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 "au6610.h"
#include "zl10353.h"
#include "qt1010.h"

/* debug */
static int dvb_usb_au6610_debug;
module_param_named(debug, dvb_usb_au6610_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,
			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
	int ret;
	u16 index;
	u8 *usb_buf;

	/*
	 * allocate enough for all known requests,
	 * read returns 5 and write 6 bytes
	 */
	usb_buf = kmalloc(6, GFP_KERNEL);
	if (!usb_buf)
		return -ENOMEM;

	switch (wlen) {
	case 1:
		index = wbuf[0] << 8;
		break;
	case 2:
		index = wbuf[0] << 8;
		index += wbuf[1];
		break;
	default:
		warn("wlen = %x, aborting.", wlen);
		ret = -EINVAL;
		goto error;
	}

	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,
			      USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index,
			      usb_buf, 6, AU6610_USB_TIMEOUT);
	if (ret < 0)
		goto error;

	switch (operation) {
	case AU6610_REQ_I2C_READ:
	case AU6610_REQ_USB_READ:
		/* requested value is always 5th byte in buffer */
		rbuf[0] = usb_buf[4];
	}
error:
	kfree(usb_buf);
	return ret;
}

static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,
			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
	u8 request;
	u8 wo = (rbuf == NULL || rlen == 0); /* write-only */

	if (wo) {
		request = AU6610_REQ_I2C_WRITE;
	} else { /* rw */
		request = AU6610_REQ_I2C_READ;
	}

	return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);
}


/* I2C */
static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
			   int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i;

	if (num > 2)
		return -EINVAL;

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	for (i = 0; i < num; i++) {
		/* write/read request */
		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
			if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
					   msg[i].len, msg[i+1].buf,
					   msg[i+1].len) < 0)
				break;
			i++;
		} else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
					       msg[i].len, NULL, 0) < 0)
				break;
	}

	mutex_unlock(&d->i2c_mutex);
	return i;
}


static u32 au6610_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm au6610_i2c_algo = {
	.master_xfer   = au6610_i2c_xfer,
	.functionality = au6610_i2c_func,
};

/* Callbacks for DVB USB */
static struct zl10353_config au6610_zl10353_config = {
	.demod_address = 0x0f,
	.no_tuner = 1,
	.parallel_ts = 1,
};

static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
{
	adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config,
		&adap->dev->i2c_adap);
	if (adap->fe == NULL)
		return -ENODEV;

	return 0;
}

static struct qt1010_config au6610_qt1010_config = {
	.i2c_address = 0x62
};

static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
{
	return dvb_attach(qt1010_attach,
			  adap->fe, &adap->dev->i2c_adap,
			  &au6610_qt1010_config) == NULL ? -ENODEV : 0;
}

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties au6610_properties;

static int au6610_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	struct dvb_usb_device *d;
	struct usb_host_interface *alt;
	int ret;

	if (intf->num_altsetting < AU6610_ALTSETTING_COUNT)
		return -ENODEV;

	ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d,
				  adapter_nr);
	if (ret == 0) {
		alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING);

		if (alt == NULL) {
			deb_info("%s: no alt found!\n", __func__);
			return -ENODEV;
		}
		ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
					alt->desc.bAlternateSetting);
	}

	return ret;
}

static struct usb_device_id au6610_table [] = {
	{ USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) },
	{ }		/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, au6610_table);

static struct dvb_usb_device_properties au6610_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,

	.usb_ctrl = DEVICE_SPECIFIC,

	.size_of_priv = 0,

	.num_adapters = 1,
	.adapter = {
		{
			.frontend_attach  = au6610_zl10353_frontend_attach,
			.tuner_attach     = au6610_qt1010_tuner_attach,

			.stream = {
				.type = USB_ISOC,
				.count = 5,
				.endpoint = 0x82,
				.u = {
					.isoc = {
						.framesperurb = 40,
						.framesize = 942,
						.interval = 1,
					}
				}
			},
		}
	},

	.i2c_algo = &au6610_i2c_algo,

	.num_device_descs = 1,
	.devices = {
		{
			.name = "Sigmatek DVB-110 DVB-T USB2.0",
			.cold_ids = {NULL},
			.warm_ids = {&au6610_table[0], NULL},
		},
	}
};

static struct usb_driver au6610_driver = {
	.name       = "dvb_usb_au6610",
	.probe      = au6610_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table   = au6610_table,
};

/* module stuff */
static int __init au6610_module_init(void)
{
	int ret;

	ret = usb_register(&au6610_driver);
	if (ret)
		err("usb_register failed. Error number %d", ret);

	return ret;
}

static void __exit au6610_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&au6610_driver);
}

module_init(au6610_module_init);
module_exit(au6610_module_exit);

MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");
Commit	Line	Data
53af158a AP	1	/*
53af158a AP	2	* DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
5decdd27	3	*
4c7e3ea9	4	* Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
5decdd27	5	*
53af158a AP	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
5decdd27	10	*
53af158a AP	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
5decdd27 AP	19	*/
	20
	21	#include "au6610.h"
5decdd27 AP	22	#include "zl10353.h"
	23	#include "qt1010.h"
	24
	25	/* debug */
	26	static int dvb_usb_au6610_debug;
	27	module_param_named(debug, dvb_usb_au6610_debug, int, 0644);
53af158a	28	MODULE_PARM_DESC(debug, "set debugging level" DVB_USB_DEBUG_STATUS);
78e92006 JG	29	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
78e92006 JG	30
5decdd27 AP	31	static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,
	32	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
	33	{
	34	int ret;
	35	u16 index;
2a596f84 FM	36	u8 *usb_buf;
	37
	38	/*
	39	* allocate enough for all known requests,
	40	* read returns 5 and write 6 bytes
	41	*/
	42	usb_buf = kmalloc(6, GFP_KERNEL);
	43	if (!usb_buf)
	44	return -ENOMEM;
	45
5decdd27 AP	46	switch (wlen) {
	47	case 1:
	48	index = wbuf[0] << 8;
	49	break;
	50	case 2:
	51	index = wbuf[0] << 8;
	52	index += wbuf[1];
	53	break;
	54	default:
	55	warn("wlen = %x, aborting.", wlen);
2a596f84 FM	56	ret = -EINVAL;
2a596f84 FM	57	goto error;
5decdd27 AP	58	}
	59
	60	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,
b6b2d268	61	USB_TYPE_VENDOR\|USB_DIR_IN, addr << 1, index,
2a596f84	62	usb_buf, 6, AU6610_USB_TIMEOUT);
5decdd27	63	if (ret < 0)
2a596f84	64	goto error;
5decdd27 AP	65
	66	switch (operation) {
	67	case AU6610_REQ_I2C_READ:
	68	case AU6610_REQ_USB_READ:
	69	/* requested value is always 5th byte in buffer */
	70	rbuf[0] = usb_buf[4];
	71	}
2a596f84 FM	72	error:
2a596f84 FM	73	kfree(usb_buf);
5decdd27 AP	74	return ret;
	75	}
	76
38d0629f MK	77	static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,
38d0629f MK	78	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
5decdd27 AP	79	{
	80	u8 request;
	81	u8 wo = (rbuf == NULL \|\| rlen == 0); /* write-only */
	82
	83	if (wo) {
	84	request = AU6610_REQ_I2C_WRITE;
	85	} else { /* rw */
	86	request = AU6610_REQ_I2C_READ;
	87	}
	88
	89	return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);
	90	}
	91
	92
	93	/* I2C */
38d0629f MK	94	static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
38d0629f MK	95	int num)
5decdd27 AP	96	{
	97	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	98	int i;
	99
5decdd27 AP	100	if (num > 2)
	101	return -EINVAL;
	102
c80296d7 RK	103	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	104	return -EAGAIN;
	105
5decdd27 AP	106	for (i = 0; i < num; i++) {
	107	/* write/read request */
	108	if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
	109	if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
38d0629f MK	110	msg[i].len, msg[i+1].buf,
38d0629f MK	111	msg[i+1].len) < 0)
5decdd27 AP	112	break;
	113	i++;
	114	} else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
	115	msg[i].len, NULL, 0) < 0)
	116	break;
	117	}
	118
	119	mutex_unlock(&d->i2c_mutex);
	120	return i;
	121	}
	122
	123
	124	static u32 au6610_i2c_func(struct i2c_adapter *adapter)
	125	{
	126	return I2C_FUNC_I2C;
	127	}
	128
	129	static struct i2c_algorithm au6610_i2c_algo = {
	130	.master_xfer = au6610_i2c_xfer,
	131	.functionality = au6610_i2c_func,
	132	};
	133
	134	/* Callbacks for DVB USB */
5decdd27	135	static struct zl10353_config au6610_zl10353_config = {
26a154c3	136	.demod_address = 0x0f,
5decdd27 AP	137	.no_tuner = 1,
	138	.parallel_ts = 1,
	139	};
	140
5decdd27 AP	141	static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
5decdd27 AP	142	{
b6b2d268 AP	143	adap->fe = dvb_attach(zl10353_attach, &au6610_zl10353_config,
	144	&adap->dev->i2c_adap);
	145	if (adap->fe == NULL)
53af158a	146	return -ENODEV;
5decdd27	147
b6b2d268	148	return 0;
5decdd27 AP	149	}
5decdd27 AP	150
4c7e3ea9	151	static struct qt1010_config au6610_qt1010_config = {
26a154c3	152	.i2c_address = 0x62
4c7e3ea9 AP	153	};
	154
	155	static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
	156	{
4c7e3ea9 AP	157	return dvb_attach(qt1010_attach,
	158	adap->fe, &adap->dev->i2c_adap,
	159	&au6610_qt1010_config) == NULL ? -ENODEV : 0;
	160	}
	161
5decdd27 AP	162	/* DVB USB Driver stuff */
	163	static struct dvb_usb_device_properties au6610_properties;
	164
38d0629f MK	165	static int au6610_probe(struct usb_interface *intf,
38d0629f MK	166	const struct usb_device_id *id)
5decdd27 AP	167	{
	168	struct dvb_usb_device *d;
	169	struct usb_host_interface *alt;
	170	int ret;
	171
	172	if (intf->num_altsetting < AU6610_ALTSETTING_COUNT)
	173	return -ENODEV;
	174
78e92006 JG	175	ret = dvb_usb_device_init(intf, &au6610_properties, THIS_MODULE, &d,
	176	adapter_nr);
	177	if (ret == 0) {
5decdd27 AP	178	alt = usb_altnum_to_altsetting(intf, AU6610_ALTSETTING);
	179
	180	if (alt == NULL) {
53af158a	181	deb_info("%s: no alt found!\n", __func__);
5decdd27 AP	182	return -ENODEV;
	183	}
	184	ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
	185	alt->desc.bAlternateSetting);
	186	}
	187
	188	return ret;
	189	}
	190
5decdd27 AP	191	static struct usb_device_id au6610_table [] = {
	192	{ USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110) },
	193	{ } /* Terminating entry */
	194	};
b6b2d268	195	MODULE_DEVICE_TABLE(usb, au6610_table);
5decdd27 AP	196
	197	static struct dvb_usb_device_properties au6610_properties = {
	198	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
53af158a	199
5decdd27	200	.usb_ctrl = DEVICE_SPECIFIC,
53af158a AP	201
	202	.size_of_priv = 0,
	203
5decdd27 AP	204	.num_adapters = 1,
	205	.adapter = {
	206	{
	207	.frontend_attach = au6610_zl10353_frontend_attach,
4c7e3ea9	208	.tuner_attach = au6610_qt1010_tuner_attach,
5decdd27 AP	209
	210	.stream = {
	211	.type = USB_ISOC,
	212	.count = 5,
	213	.endpoint = 0x82,
	214	.u = {
	215	.isoc = {
	216	.framesperurb = 40,
b6b2d268	217	.framesize = 942,
53af158a	218	.interval = 1,
5decdd27 AP	219	}
	220	}
	221	},
	222	}
	223	},
53af158a	224
5decdd27	225	.i2c_algo = &au6610_i2c_algo,
bbf23af2	226
5decdd27 AP	227	.num_device_descs = 1,
	228	.devices = {
	229	{
bbf23af2 AP	230	.name = "Sigmatek DVB-110 DVB-T USB2.0",
	231	.cold_ids = {NULL},
	232	.warm_ids = {&au6610_table[0], NULL},
5decdd27 AP	233	},
	234	}
	235	};
	236
	237	static struct usb_driver au6610_driver = {
	238	.name = "dvb_usb_au6610",
	239	.probe = au6610_probe,
	240	.disconnect = dvb_usb_device_exit,
	241	.id_table = au6610_table,
	242	};
	243
	244	/* module stuff */
	245	static int __init au6610_module_init(void)
	246	{
	247	int ret;
	248
b6b2d268 AP	249	ret = usb_register(&au6610_driver);
b6b2d268 AP	250	if (ret)
5decdd27	251	err("usb_register failed. Error number %d", ret);
5decdd27	252
b6b2d268	253	return ret;
5decdd27 AP	254	}
	255
	256	static void __exit au6610_module_exit(void)
	257	{
	258	/* deregister this driver from the USB subsystem */
	259	usb_deregister(&au6610_driver);
	260	}
	261
b6b2d268 AP	262	module_init(au6610_module_init);
b6b2d268 AP	263	module_exit(au6610_module_exit);
5decdd27 AP	264
5decdd27 AP	265	MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
53af158a	266	MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");
5decdd27 AP	267	MODULE_VERSION("0.1");
5decdd27 AP	268	MODULE_LICENSE("GPL");