[linux-2.6-block.git] / drivers / media / usb / dvb-usb-v2 / au6610.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
 *
 * Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
 */

#include "au6610.h"
#include "zl10353.h"
#include "qt1010.h"

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

	dvb_usb_dbg_usb_control_msg(d->udev, operation,
			(USB_TYPE_VENDOR|USB_DIR_IN), addr << 1, index,
			usb_buf, 6);

	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[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config,
			&adap_to_d(adap)->i2c_adap);
	if (adap->fe[0] == 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[0],
			&adap_to_d(adap)->i2c_adap,
			&au6610_qt1010_config) == NULL ? -ENODEV : 0;
}

static int au6610_init(struct dvb_usb_device *d)
{
	/* TODO: this functionality belongs likely to the streaming control */
	/* bInterfaceNumber 0, bAlternateSetting 5 */
	return usb_set_interface(d->udev, 0, 5);
}

static struct dvb_usb_device_properties au6610_props = {
	.driver_name = KBUILD_MODNAME,
	.owner = THIS_MODULE,
	.adapter_nr = adapter_nr,

	.i2c_algo = &au6610_i2c_algo,
	.frontend_attach = au6610_zl10353_frontend_attach,
	.tuner_attach = au6610_qt1010_tuner_attach,
	.init = au6610_init,

	.num_adapters = 1,
	.adapter = {
		{
			.stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1),
		},
	},
};

static const struct usb_device_id au6610_id_table[] = {
	{ DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110,
		&au6610_props, "Sigmatek DVB-110", NULL) },
	{ }
};
MODULE_DEVICE_TABLE(usb, au6610_id_table);

static struct usb_driver au6610_driver = {
	.name = KBUILD_MODNAME,
	.id_table = au6610_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(au6610_driver);

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
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
53af158a AP	2	/*
53af158a AP	3	* DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
5decdd27	4	*
4c7e3ea9	5	* Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
5decdd27 AP	6	*/
	7
	8	#include "au6610.h"
5decdd27 AP	9	#include "zl10353.h"
	10	#include "qt1010.h"
	11
78e92006 JG	12	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
78e92006 JG	13
5decdd27 AP	14	static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,
	15	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
	16	{
	17	int ret;
	18	u16 index;
2a596f84 FM	19	u8 *usb_buf;
	20
	21	/*
	22	* allocate enough for all known requests,
	23	* read returns 5 and write 6 bytes
	24	*/
	25	usb_buf = kmalloc(6, GFP_KERNEL);
	26	if (!usb_buf)
	27	return -ENOMEM;
	28
5decdd27 AP	29	switch (wlen) {
	30	case 1:
	31	index = wbuf[0] << 8;
	32	break;
	33	case 2:
	34	index = wbuf[0] << 8;
	35	index += wbuf[1];
	36	break;
	37	default:
a835ae67 AP	38	dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
a835ae67 AP	39	KBUILD_MODNAME, wlen);
2a596f84 FM	40	ret = -EINVAL;
2a596f84 FM	41	goto error;
5decdd27 AP	42	}
	43
	44	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,
b6b2d268	45	USB_TYPE_VENDOR\|USB_DIR_IN, addr << 1, index,
2a596f84	46	usb_buf, 6, AU6610_USB_TIMEOUT);
d89b9369 AP	47
	48	dvb_usb_dbg_usb_control_msg(d->udev, operation,
	49	(USB_TYPE_VENDOR\|USB_DIR_IN), addr << 1, index,
	50	usb_buf, 6);
	51
5decdd27	52	if (ret < 0)
2a596f84	53	goto error;
5decdd27 AP	54
	55	switch (operation) {
	56	case AU6610_REQ_I2C_READ:
	57	case AU6610_REQ_USB_READ:
	58	/* requested value is always 5th byte in buffer */
	59	rbuf[0] = usb_buf[4];
	60	}
2a596f84 FM	61	error:
2a596f84 FM	62	kfree(usb_buf);
5decdd27 AP	63	return ret;
	64	}
	65
38d0629f MK	66	static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,
38d0629f MK	67	u8 wbuf, u16 wlen, u8 rbuf, u16 rlen)
5decdd27 AP	68	{
	69	u8 request;
	70	u8 wo = (rbuf == NULL \|\| rlen == 0); /* write-only */
	71
	72	if (wo) {
	73	request = AU6610_REQ_I2C_WRITE;
	74	} else { /* rw */
	75	request = AU6610_REQ_I2C_READ;
	76	}
	77
	78	return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);
	79	}
	80
	81
	82	/* I2C */
38d0629f MK	83	static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
38d0629f MK	84	int num)
5decdd27 AP	85	{
	86	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	87	int i;
	88
5decdd27 AP	89	if (num > 2)
	90	return -EINVAL;
	91
c80296d7 RK	92	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	93	return -EAGAIN;
	94
5decdd27 AP	95	for (i = 0; i < num; i++) {
	96	/* write/read request */
	97	if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
	98	if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
38d0629f MK	99	msg[i].len, msg[i+1].buf,
38d0629f MK	100	msg[i+1].len) < 0)
5decdd27 AP	101	break;
	102	i++;
	103	} else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
	104	msg[i].len, NULL, 0) < 0)
	105	break;
	106	}
	107
	108	mutex_unlock(&d->i2c_mutex);
	109	return i;
	110	}
	111
	112
	113	static u32 au6610_i2c_func(struct i2c_adapter *adapter)
	114	{
	115	return I2C_FUNC_I2C;
	116	}
	117
	118	static struct i2c_algorithm au6610_i2c_algo = {
	119	.master_xfer = au6610_i2c_xfer,
	120	.functionality = au6610_i2c_func,
	121	};
	122
	123	/* Callbacks for DVB USB */
5decdd27	124	static struct zl10353_config au6610_zl10353_config = {
26a154c3	125	.demod_address = 0x0f,
5decdd27 AP	126	.no_tuner = 1,
	127	.parallel_ts = 1,
	128	};
	129
5decdd27 AP	130	static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
5decdd27 AP	131	{
cb4f77a3	132	adap->fe[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config,
a1da8146	133	&adap_to_d(adap)->i2c_adap);
cb4f77a3	134	if (adap->fe[0] == NULL)
53af158a	135	return -ENODEV;
5decdd27	136
b6b2d268	137	return 0;
5decdd27 AP	138	}
5decdd27 AP	139
4c7e3ea9	140	static struct qt1010_config au6610_qt1010_config = {
26a154c3	141	.i2c_address = 0x62
4c7e3ea9 AP	142	};
	143
	144	static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
	145	{
a1da8146 AP	146	return dvb_attach(qt1010_attach, adap->fe[0],
	147	&adap_to_d(adap)->i2c_adap,
	148	&au6610_qt1010_config) == NULL ? -ENODEV : 0;
4c7e3ea9 AP	149	}
4c7e3ea9 AP	150
cb4f77a3	151	static int au6610_init(struct dvb_usb_device *d)
5decdd27	152	{
cb4f77a3 AP	153	/* TODO: this functionality belongs likely to the streaming control */
	154	/* bInterfaceNumber 0, bAlternateSetting 5 */
	155	return usb_set_interface(d->udev, 0, 5);
5decdd27 AP	156	}
5decdd27 AP	157
cb4f77a3 AP	158	static struct dvb_usb_device_properties au6610_props = {
	159	.driver_name = KBUILD_MODNAME,
	160	.owner = THIS_MODULE,
	161	.adapter_nr = adapter_nr,
53af158a	162
cb4f77a3 AP	163	.i2c_algo = &au6610_i2c_algo,
	164	.frontend_attach = au6610_zl10353_frontend_attach,
	165	.tuner_attach = au6610_qt1010_tuner_attach,
	166	.init = au6610_init,
53af158a	167
5decdd27 AP	168	.num_adapters = 1,
	169	.adapter = {
	170	{
a1da8146	171	.stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1),
cb4f77a3	172	},
5decdd27	173	},
cb4f77a3	174	};
53af158a	175
cb4f77a3 AP	176	static const struct usb_device_id au6610_id_table[] = {
	177	{ DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110,
	178	&au6610_props, "Sigmatek DVB-110", NULL) },
	179	{ }
5decdd27	180	};
cb4f77a3	181	MODULE_DEVICE_TABLE(usb, au6610_id_table);
5decdd27 AP	182
5decdd27 AP	183	static struct usb_driver au6610_driver = {
cb4f77a3 AP	184	.name = KBUILD_MODNAME,
	185	.id_table = au6610_id_table,
	186	.probe = dvb_usbv2_probe,
	187	.disconnect = dvb_usbv2_disconnect,
	188	.suspend = dvb_usbv2_suspend,
	189	.resume = dvb_usbv2_resume,
f5a8a78a	190	.reset_resume = dvb_usbv2_reset_resume,
cb4f77a3 AP	191	.no_dynamic_id = 1,
cb4f77a3 AP	192	.soft_unbind = 1,
5decdd27 AP	193	};
5decdd27 AP	194
ecb3b2b3	195	module_usb_driver(au6610_driver);
5decdd27 AP	196
5decdd27 AP	197	MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
53af158a	198	MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");
5decdd27 AP	199	MODULE_VERSION("0.1");
5decdd27 AP	200	MODULE_LICENSE("GPL");