/* 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");