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
5 * Free Software Foundation, version 2.
7 * see Documentation/dvb/README.dvb-usb for more information
14 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
16 static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
17 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
20 u16 value = addr << (8 + 1);
21 int wo = (rbuf == NULL || rlen == 0); /* write-only */
25 req = GL861_REQ_I2C_WRITE;
28 req = GL861_REQ_I2C_READ;
38 value = value + wbuf[1];
41 pr_err("%s: wlen=%d, aborting\n", KBUILD_MODNAME, wlen);
45 msleep(1); /* avoid I2C errors */
47 return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
48 value, index, rbuf, rlen, 2000);
52 static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
55 struct dvb_usb_device *d = i2c_get_adapdata(adap);
61 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
64 for (i = 0; i < num; i++) {
65 /* write/read request */
66 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
67 if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
68 msg[i].len, msg[i+1].buf, msg[i+1].len) < 0)
72 if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
73 msg[i].len, NULL, 0) < 0)
77 mutex_unlock(&d->i2c_mutex);
81 static u32 gl861_i2c_func(struct i2c_adapter *adapter)
86 static struct i2c_algorithm gl861_i2c_algo = {
87 .master_xfer = gl861_i2c_xfer,
88 .functionality = gl861_i2c_func,
91 /* Callbacks for DVB USB */
92 static struct zl10353_config gl861_zl10353_config = {
93 .demod_address = 0x0f,
98 static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
101 adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
102 &adap_to_d(adap)->i2c_adap);
103 if (adap->fe[0] == NULL)
109 static struct qt1010_config gl861_qt1010_config = {
113 static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
115 return dvb_attach(qt1010_attach,
116 adap->fe[0], &adap_to_d(adap)->i2c_adap,
117 &gl861_qt1010_config) == NULL ? -ENODEV : 0;
120 static int gl861_init(struct dvb_usb_device *d)
123 * There is 2 interfaces. Interface 0 is for TV and interface 1 is
124 * for HID remote controller. Interface 0 has 2 alternate settings.
125 * For some reason we need to set interface explicitly, defaulted
126 * as alternate setting 1?
128 return usb_set_interface(d->udev, 0, 0);
131 /* DVB USB Driver stuff */
132 static struct dvb_usb_device_properties gl861_props = {
133 .driver_name = KBUILD_MODNAME,
134 .owner = THIS_MODULE,
135 .adapter_nr = adapter_nr,
137 .i2c_algo = &gl861_i2c_algo,
138 .frontend_attach = gl861_frontend_attach,
139 .tuner_attach = gl861_tuner_attach,
145 .stream = DVB_USB_STREAM_BULK(0x81, 7, 512),
150 static const struct usb_device_id gl861_id_table[] = {
151 { DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
152 &gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) },
153 { DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU,
154 &gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) },
157 MODULE_DEVICE_TABLE(usb, gl861_id_table);
159 static struct usb_driver gl861_usb_driver = {
160 .name = KBUILD_MODNAME,
161 .id_table = gl861_id_table,
162 .probe = dvb_usbv2_probe,
163 .disconnect = dvb_usbv2_disconnect,
164 .suspend = dvb_usbv2_suspend,
165 .resume = dvb_usbv2_resume,
170 module_usb_driver(gl861_usb_driver);
172 MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
173 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
174 MODULE_VERSION("0.1");
175 MODULE_LICENSE("GPL");