[mirror_ubuntu-bionic-kernel.git] / drivers / media / usb / dvb-usb-v2 / 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"

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:
		dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
				KBUILD_MODNAME, wlen);
		return -EINVAL;
	}

	msleep(1); /* avoid I2C errors */

	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 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)
{

	adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
		&adap_to_d(adap)->i2c_adap);
	if (adap->fe[0] == NULL)
		return -EIO;

	return 0;
}

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[0], &adap_to_d(adap)->i2c_adap,
			  &gl861_qt1010_config) == NULL ? -ENODEV : 0;
}

static int gl861_init(struct dvb_usb_device *d)
{
	/*
	 * There is 2 interfaces. Interface 0 is for TV and interface 1 is
	 * for HID remote controller. Interface 0 has 2 alternate settings.
	 * For some reason we need to set interface explicitly, defaulted
	 * as alternate setting 1?
	 */
	return usb_set_interface(d->udev, 0, 0);
}

/* DVB USB Driver stuff */
static struct dvb_usb_device_properties gl861_props = {
	.driver_name = KBUILD_MODNAME,
	.owner = THIS_MODULE,
	.adapter_nr = adapter_nr,

	.i2c_algo = &gl861_i2c_algo,
	.frontend_attach = gl861_frontend_attach,
	.tuner_attach = gl861_tuner_attach,
	.init = gl861_init,

	.num_adapters = 1,
	.adapter = {
		{
			.stream = DVB_USB_STREAM_BULK(0x81, 7, 512),
		}
	}
};

static const struct usb_device_id gl861_id_table[] = {
	{ DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
		&gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) },
	{ DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU,
		&gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) },
	{ }
};
MODULE_DEVICE_TABLE(usb, gl861_id_table);

static struct usb_driver gl861_usb_driver = {
	.name = KBUILD_MODNAME,
	.id_table = gl861_id_table,
	.probe = dvb_usbv2_probe,
	.disconnect = dvb_usbv2_disconnect,
	.suspend = dvb_usbv2_suspend,
	.resume = dvb_usbv2_resume,
	.reset_resume = dvb_usbv2_reset_resume,
	.no_dynamic_id = 1,
	.soft_unbind = 1,
};

module_usb_driver(gl861_usb_driver);

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
fb49558c AP	4	* under the terms of the GNU General Public License as published by the
fb49558c AP	5	* Free Software Foundation, version 2.
f0c3a2ca CL	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
78e92006 JG	14	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
78e92006 JG	15
f0c3a2ca	16	static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
1f78867b	17	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
f0c3a2ca CL	18	{
f0c3a2ca CL	19	u16 index;
26a154c3	20	u16 value = addr << (8 + 1);
f0c3a2ca CL	21	int wo = (rbuf == NULL \|\| rlen == 0); /* write-only */
	22	u8 req, type;
	23
	24	if (wo) {
	25	req = GL861_REQ_I2C_WRITE;
	26	type = GL861_WRITE;
	27	} else { /* rw */
	28	req = GL861_REQ_I2C_READ;
	29	type = GL861_READ;
	30	}
	31
	32	switch (wlen) {
1f78867b MK	33	case 1:
	34	index = wbuf[0];
	35	break;
	36	case 2:
	37	index = wbuf[0];
	38	value = value + wbuf[1];
	39	break;
	40	default:
81527688 AP	41	dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
81527688 AP	42	KBUILD_MODNAME, wlen);
1f78867b	43	return -EINVAL;
f0c3a2ca CL	44	}
f0c3a2ca CL	45
1a78db82	46	msleep(1); /* avoid I2C errors */
f56ebe16	47
f0c3a2ca	48	return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
1f78867b	49	value, index, rbuf, rlen, 2000);
f0c3a2ca CL	50	}
	51
	52	/* I2C */
	53	static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
1f78867b	54	int num)
f0c3a2ca CL	55	{
	56	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	57	int i;
	58
f0c3a2ca CL	59	if (num > 2)
	60	return -EINVAL;
	61
c80296d7 RK	62	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	63	return -EAGAIN;
	64
f0c3a2ca CL	65	for (i = 0; i < num; i++) {
	66	/* write/read request */
	67	if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
	68	if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
fb49558c	69	msg[i].len, msg[i+1].buf, msg[i+1].len) < 0)
f0c3a2ca CL	70	break;
	71	i++;
	72	} else
	73	if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
1f78867b	74	msg[i].len, NULL, 0) < 0)
f0c3a2ca CL	75	break;
	76	}
	77
	78	mutex_unlock(&d->i2c_mutex);
	79	return i;
	80	}
	81
	82	static u32 gl861_i2c_func(struct i2c_adapter *adapter)
	83	{
	84	return I2C_FUNC_I2C;
	85	}
	86
	87	static struct i2c_algorithm gl861_i2c_algo = {
	88	.master_xfer = gl861_i2c_xfer,
	89	.functionality = gl861_i2c_func,
	90	};
	91
	92	/* Callbacks for DVB USB */
f0c3a2ca	93	static struct zl10353_config gl861_zl10353_config = {
26a154c3	94	.demod_address = 0x0f,
f0c3a2ca	95	.no_tuner = 1,
4131fd4f	96	.parallel_ts = 1,
f0c3a2ca CL	97	};
	98
	99	static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
	100	{
f0c3a2ca	101
4d2e596a AP	102	adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
	103	&adap_to_d(adap)->i2c_adap);
	104	if (adap->fe[0] == NULL)
fb49558c AP	105	return -EIO;
	106
	107	return 0;
f0c3a2ca CL	108	}
f0c3a2ca CL	109
4c7e3ea9	110	static struct qt1010_config gl861_qt1010_config = {
26a154c3	111	.i2c_address = 0x62
4c7e3ea9 AP	112	};
	113
	114	static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
	115	{
4c7e3ea9	116	return dvb_attach(qt1010_attach,
4d2e596a	117	adap->fe[0], &adap_to_d(adap)->i2c_adap,
4c7e3ea9 AP	118	&gl861_qt1010_config) == NULL ? -ENODEV : 0;
	119	}
	120
4d2e596a	121	static int gl861_init(struct dvb_usb_device *d)
f0c3a2ca	122	{
4d2e596a AP	123	/*
	124	* There is 2 interfaces. Interface 0 is for TV and interface 1 is
	125	* for HID remote controller. Interface 0 has 2 alternate settings.
	126	* For some reason we need to set interface explicitly, defaulted
	127	* as alternate setting 1?
	128	*/
	129	return usb_set_interface(d->udev, 0, 0);
f0c3a2ca CL	130	}
f0c3a2ca CL	131
4d2e596a AP	132	/* DVB USB Driver stuff */
	133	static struct dvb_usb_device_properties gl861_props = {
	134	.driver_name = KBUILD_MODNAME,
	135	.owner = THIS_MODULE,
	136	.adapter_nr = adapter_nr,
f0c3a2ca	137
4d2e596a AP	138	.i2c_algo = &gl861_i2c_algo,
	139	.frontend_attach = gl861_frontend_attach,
	140	.tuner_attach = gl861_tuner_attach,
	141	.init = gl861_init,
f0c3a2ca	142
f0c3a2ca	143	.num_adapters = 1,
4d2e596a	144	.adapter = {
ea3a13b7	145	{
4d2e596a AP	146	.stream = DVB_USB_STREAM_BULK(0x81, 7, 512),
4d2e596a AP	147	}
f0c3a2ca CL	148	}
	149	};
	150
4d2e596a AP	151	static const struct usb_device_id gl861_id_table[] = {
	152	{ DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
	153	&gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) },
	154	{ DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU,
	155	&gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) },
	156	{ }
	157	};
	158	MODULE_DEVICE_TABLE(usb, gl861_id_table);
	159
	160	static struct usb_driver gl861_usb_driver = {
	161	.name = KBUILD_MODNAME,
	162	.id_table = gl861_id_table,
	163	.probe = dvb_usbv2_probe,
	164	.disconnect = dvb_usbv2_disconnect,
	165	.suspend = dvb_usbv2_suspend,
	166	.resume = dvb_usbv2_resume,
0b8623ca	167	.reset_resume = dvb_usbv2_reset_resume,
4d2e596a AP	168	.no_dynamic_id = 1,
4d2e596a AP	169	.soft_unbind = 1,
f0c3a2ca CL	170	};
f0c3a2ca CL	171
4d2e596a	172	module_usb_driver(gl861_usb_driver);
f0c3a2ca	173
947af8fd	174	MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
f0c3a2ca	175	MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
4131fd4f	176	MODULE_VERSION("0.1");
f0c3a2ca	177	MODULE_LICENSE("GPL");