1 /* DVB USB compliant linux driver for GL861 USB2.0 devices.
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.
7 * see Documentation/dvb/README.dvb-usb for more information
15 static int dvb_usb_gl861_debug;
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);
19 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
21 static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
22 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
25 u16 value = addr << (8 + 1);
26 int wo = (rbuf == NULL || rlen == 0); /* write-only */
30 req = GL861_REQ_I2C_WRITE;
33 req = GL861_REQ_I2C_READ;
43 value = value + wbuf[1];
46 warn("wlen = %x, aborting.", wlen);
50 return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
51 value, index, rbuf, rlen, 2000);
55 static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
58 struct dvb_usb_device *d = i2c_get_adapdata(adap);
64 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
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,
71 msg[i].len, msg[i+1].buf, msg[i+1].len) < 0)
75 if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
76 msg[i].len, NULL, 0) < 0)
80 mutex_unlock(&d->i2c_mutex);
84 static u32 gl861_i2c_func(struct i2c_adapter *adapter)
89 static struct i2c_algorithm gl861_i2c_algo = {
90 .master_xfer = gl861_i2c_xfer,
91 .functionality = gl861_i2c_func,
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,
105 static struct zl10353_config gl861_zl10353_config = {
106 .demod_address = 0x0f,
111 static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
113 if ((adap->fe = dvb_attach(zl10353_attach, &gl861_zl10353_config,
114 &adap->dev->i2c_adap)) != NULL) {
121 static struct qt1010_config gl861_qt1010_config = {
125 static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
127 return dvb_attach(qt1010_attach,
128 adap->fe, &adap->dev->i2c_adap,
129 &gl861_qt1010_config) == NULL ? -ENODEV : 0;
132 /* DVB USB Driver stuff */
133 static struct dvb_usb_device_properties gl861_properties;
135 static int gl861_probe(struct usb_interface *intf,
136 const struct usb_device_id *id)
138 struct dvb_usb_device *d;
139 struct usb_host_interface *alt;
142 if (intf->num_altsetting < 2)
145 ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE, &d,
148 alt = usb_altnum_to_altsetting(intf, 0);
151 deb_rc("not alt found!\n");
155 ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
156 alt->desc.bAlternateSetting);
162 static struct usb_device_id gl861_table [] = {
163 { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801) },
164 { USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU) },
165 { } /* Terminating entry */
167 MODULE_DEVICE_TABLE (usb, gl861_table);
169 static struct dvb_usb_device_properties gl861_properties = {
170 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
171 .usb_ctrl = DEVICE_SPECIFIC,
175 .identify_state = gl861_identify_state,
179 .frontend_attach = gl861_frontend_attach,
180 .tuner_attach = gl861_tuner_attach,
193 .i2c_algo = &gl861_i2c_algo,
195 .num_device_descs = 2,
197 { "MSI Mega Sky 55801 DVB-T USB2.0",
198 { &gl861_table[0], NULL },
201 { "A-LINK DTU DVB-T USB2.0",
202 { &gl861_table[1], NULL },
208 static struct usb_driver gl861_driver = {
209 .name = "dvb_usb_gl861",
210 .probe = gl861_probe,
211 .disconnect = dvb_usb_device_exit,
212 .id_table = gl861_table,
216 static int __init gl861_module_init(void)
220 if ((ret = usb_register(&gl861_driver))) {
221 err("usb_register failed. Error number %d", ret);
228 static void __exit gl861_module_exit(void)
230 /* deregister this driver from the USB subsystem */
231 usb_deregister(&gl861_driver);
234 module_init (gl861_module_init);
235 module_exit (gl861_module_exit);
237 MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
238 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
239 MODULE_VERSION("0.1");
240 MODULE_LICENSE("GPL");