[mirror_ubuntu-bionic-kernel.git] / drivers / media / dvb / dvb-usb / gl861.c

/* DVB USB compliant linux driver for GL861 USB2.0 devices.
 *
 *	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, version 2.
 *
 * see Documentation/dvb/README.dvb-usb for more information
 */
#include "gl861.h"

#include "zl10353.h"
#include "qt1010.h"

/* debug */
static int dvb_usb_gl861_debug;
module_param_named(debug,dvb_usb_gl861_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
			 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
	u16 index;
	u16 value = addr << (8 + 1);
	int wo = (rbuf == NULL || rlen == 0); /* write-only */
	u8 req, type;

	if (wo) {
		req = GL861_REQ_I2C_WRITE;
		type = GL861_WRITE;
	} else { /* rw */
		req = GL861_REQ_I2C_READ;
		type = GL861_READ;
	}

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

	return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
			       value, index, rbuf, rlen, 2000);
}

/* I2C */
static int gl861_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 (gl861_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 (gl861_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 gl861_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

static struct i2c_algorithm gl861_i2c_algo = {
	.master_xfer   = gl861_i2c_xfer,
	.functionality = gl861_i2c_func,
};

/* Callbacks for DVB USB */
static int gl861_identify_state(struct usb_device *udev,
				struct dvb_usb_device_properties *props,
				struct dvb_usb_device_description **desc,
				int *cold)
{
	*cold = 0;

	return 0;
}

static struct zl10353_config gl861_zl10353_config = {
	.demod_address = 0x0f,
	.no_tuner = 1,
	.parallel_ts = 1,
};

static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
{
	if ((adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config,
				   &adap->dev->i2c_adap)) != NULL) {
		return 0;
	}

	return -EIO;
}

static struct qt1010_config gl861_qt1010_config = {
	.i2c_address = 0x62
};

static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
{
	return dvb_attach(qt1010_attach,
			  adap->fe, &adap->dev->i2c_adap,
			  &gl861_qt1010_config) == NULL ? -ENODEV : 0;
}

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties gl861_properties;

static int gl861_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 < 2)
		return -ENODEV;

	ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE, &d,
				  adapter_nr);
	if (ret == 0) {
		alt = usb_altnum_to_altsetting(intf, 0);

		if (alt == NULL) {
			deb_rc("not alt found!\n");
			return -ENODEV;
		}

		ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
					alt->desc.bAlternateSetting);
	}

	return ret;
}

static struct usb_device_id gl861_table [] = {
		{ USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801) },
		{ USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU) },
		{ }		/* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, gl861_table);

static struct dvb_usb_device_properties gl861_properties = {
	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
	.usb_ctrl = DEVICE_SPECIFIC,

	.size_of_priv     = 0,

	.identify_state   = gl861_identify_state,
	.num_adapters = 1,
	.adapter = {{

		.frontend_attach  = gl861_frontend_attach,
		.tuner_attach     = gl861_tuner_attach,

		.stream = {
			.type = USB_BULK,
			.count = 7,
			.endpoint = 0x81,
			.u = {
				.bulk = {
					.buffersize = 512,
				}
			}
		},
	}},
	.i2c_algo         = &gl861_i2c_algo,

	.num_device_descs = 2,
	.devices = {
		{   "MSI Mega Sky 55801 DVB-T USB2.0",
			{ &gl861_table[0], NULL },
			{ NULL },
		},
		{   "A-LINK DTU DVB-T USB2.0",
			{ &gl861_table[1], NULL },
			{ NULL },
		},
	}
};

static struct usb_driver gl861_driver = {
	.name		= "dvb_usb_gl861",
	.probe		= gl861_probe,
	.disconnect	= dvb_usb_device_exit,
	.id_table	= gl861_table,
};

/* module stuff */
static int __init gl861_module_init(void)
{
	int ret;

	if ((ret = usb_register(&gl861_driver))) {
		err("usb_register failed. Error number %d", ret);
		return ret;
	}

	return 0;
}

static void __exit gl861_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&gl861_driver);
}

module_init (gl861_module_init);
module_exit (gl861_module_exit);

MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
MODULE_VERSION("0.1");
MODULE_LICENSE("GPL");
Commit	Line	Data
f0c3a2ca CL	1	/* DVB USB compliant linux driver for GL861 USB2.0 devices.
	2	*
	3	* This program is free software; you can redistribute it and/or modify it
	4	* under the terms of the GNU General Public License as published by the Free
	5	* Software Foundation, version 2.
	6	*
	7	* see Documentation/dvb/README.dvb-usb for more information
	8	*/
	9	#include "gl861.h"
	10
	11	#include "zl10353.h"
	12	#include "qt1010.h"
	13
	14	/* debug */
3721929e	15	static int dvb_usb_gl861_debug;
f0c3a2ca CL	16	module_param_named(debug,dvb_usb_gl861_debug, int, 0644);
	17	MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
	18
78e92006 JG	19	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
78e92006 JG	20
f0c3a2ca	21	static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
1f78867b	22	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
f0c3a2ca CL	23	{
f0c3a2ca CL	24	u16 index;
26a154c3	25	u16 value = addr << (8 + 1);
f0c3a2ca CL	26	int wo = (rbuf == NULL \|\| rlen == 0); /* write-only */
	27	u8 req, type;
	28
	29	if (wo) {
	30	req = GL861_REQ_I2C_WRITE;
	31	type = GL861_WRITE;
	32	} else { /* rw */
	33	req = GL861_REQ_I2C_READ;
	34	type = GL861_READ;
	35	}
	36
	37	switch (wlen) {
1f78867b MK	38	case 1:
	39	index = wbuf[0];
	40	break;
	41	case 2:
	42	index = wbuf[0];
	43	value = value + wbuf[1];
	44	break;
	45	default:
	46	warn("wlen = %x, aborting.", wlen);
	47	return -EINVAL;
f0c3a2ca CL	48	}
	49
	50	return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
1f78867b	51	value, index, rbuf, rlen, 2000);
f0c3a2ca CL	52	}
	53
	54	/* I2C */
	55	static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
1f78867b	56	int num)
f0c3a2ca CL	57	{
	58	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	59	int i;
	60
f0c3a2ca CL	61	if (num > 2)
	62	return -EINVAL;
	63
c80296d7 RK	64	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	65	return -EAGAIN;
	66
f0c3a2ca CL	67	for (i = 0; i < num; i++) {
	68	/* write/read request */
	69	if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
	70	if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
1f78867b	71	msg[i].len, msg[i+1].buf, msg[i+1].len) < 0)
f0c3a2ca CL	72	break;
	73	i++;
	74	} else
	75	if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
1f78867b	76	msg[i].len, NULL, 0) < 0)
f0c3a2ca CL	77	break;
	78	}
	79
	80	mutex_unlock(&d->i2c_mutex);
	81	return i;
	82	}
	83
	84	static u32 gl861_i2c_func(struct i2c_adapter *adapter)
	85	{
	86	return I2C_FUNC_I2C;
	87	}
	88
	89	static struct i2c_algorithm gl861_i2c_algo = {
	90	.master_xfer = gl861_i2c_xfer,
	91	.functionality = gl861_i2c_func,
	92	};
	93
	94	/* Callbacks for DVB USB */
	95	static int gl861_identify_state(struct usb_device *udev,
	96	struct dvb_usb_device_properties *props,
	97	struct dvb_usb_device_description **desc,
	98	int *cold)
	99	{
	100	*cold = 0;
	101
	102	return 0;
	103	}
	104
	105	static struct zl10353_config gl861_zl10353_config = {
26a154c3	106	.demod_address = 0x0f,
f0c3a2ca	107	.no_tuner = 1,
4131fd4f	108	.parallel_ts = 1,
f0c3a2ca CL	109	};
	110
	111	static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
	112	{
	113	if ((adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config,
1f78867b	114	&adap->dev->i2c_adap)) != NULL) {
f0c3a2ca CL	115	return 0;
	116	}
	117
	118	return -EIO;
	119	}
	120
4c7e3ea9	121	static struct qt1010_config gl861_qt1010_config = {
26a154c3	122	.i2c_address = 0x62
4c7e3ea9 AP	123	};
	124
	125	static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
	126	{
4c7e3ea9 AP	127	return dvb_attach(qt1010_attach,
	128	adap->fe, &adap->dev->i2c_adap,
	129	&gl861_qt1010_config) == NULL ? -ENODEV : 0;
	130	}
	131
f0c3a2ca CL	132	/* DVB USB Driver stuff */
	133	static struct dvb_usb_device_properties gl861_properties;
	134
	135	static int gl861_probe(struct usb_interface *intf,
1f78867b	136	const struct usb_device_id *id)
f0c3a2ca CL	137	{
	138	struct dvb_usb_device *d;
	139	struct usb_host_interface *alt;
	140	int ret;
	141
	142	if (intf->num_altsetting < 2)
	143	return -ENODEV;
	144
78e92006 JG	145	ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE, &d,
	146	adapter_nr);
	147	if (ret == 0) {
f0c3a2ca CL	148	alt = usb_altnum_to_altsetting(intf, 0);
	149
	150	if (alt == NULL) {
	151	deb_rc("not alt found!\n");
	152	return -ENODEV;
	153	}
	154
	155	ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
1f78867b	156	alt->desc.bAlternateSetting);
f0c3a2ca CL	157	}
	158
	159	return ret;
	160	}
	161
	162	static struct usb_device_id gl861_table [] = {
6f7880f0	163	{ USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801) },
4919c492	164	{ USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU) },
1f78867b	165	{ } /* Terminating entry */
f0c3a2ca CL	166	};
	167	MODULE_DEVICE_TABLE (usb, gl861_table);
	168
	169	static struct dvb_usb_device_properties gl861_properties = {
b3b2b8b5	170	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
f0c3a2ca CL	171	.usb_ctrl = DEVICE_SPECIFIC,
	172
	173	.size_of_priv = 0,
	174
	175	.identify_state = gl861_identify_state,
	176	.num_adapters = 1,
	177	.adapter = {{
f0c3a2ca CL	178
f0c3a2ca CL	179	.frontend_attach = gl861_frontend_attach,
4c7e3ea9	180	.tuner_attach = gl861_tuner_attach,
f0c3a2ca CL	181
	182	.stream = {
	183	.type = USB_BULK,
	184	.count = 7,
	185	.endpoint = 0x81,
	186	.u = {
	187	.bulk = {
	188	.buffersize = 512,
	189	}
	190	}
	191	},
	192	}},
	193	.i2c_algo = &gl861_i2c_algo,
	194
4919c492	195	.num_device_descs = 2,
f0c3a2ca CL	196	.devices = {
	197	{ "MSI Mega Sky 55801 DVB-T USB2.0",
	198	{ &gl861_table[0], NULL },
	199	{ NULL },
	200	},
4919c492 AT	201	{ "A-LINK DTU DVB-T USB2.0",
	202	{ &gl861_table[1], NULL },
	203	{ NULL },
	204	},
f0c3a2ca CL	205	}
	206	};
	207
	208	static struct usb_driver gl861_driver = {
05ec6cc8	209	.name = "dvb_usb_gl861",
f0c3a2ca CL	210	.probe = gl861_probe,
	211	.disconnect = dvb_usb_device_exit,
	212	.id_table = gl861_table,
	213	};
	214
	215	/* module stuff */
	216	static int __init gl861_module_init(void)
	217	{
	218	int ret;
	219
	220	if ((ret = usb_register(&gl861_driver))) {
	221	err("usb_register failed. Error number %d", ret);
	222	return ret;
	223	}
	224
	225	return 0;
	226	}
	227
	228	static void __exit gl861_module_exit(void)
	229	{
	230	/* deregister this driver from the USB subsystem */
	231	usb_deregister(&gl861_driver);
	232	}
	233
	234	module_init (gl861_module_init);
	235	module_exit (gl861_module_exit);
	236
947af8fd	237	MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
f0c3a2ca	238	MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
4131fd4f	239	MODULE_VERSION("0.1");
f0c3a2ca	240	MODULE_LICENSE("GPL");