1 /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
4 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de) and
5 * Allan Third (allan.third@cs.man.ac.uk)
7 * partly based on the SDK published by Nebula Electronics (TODO do we want this line ?)
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation, version 2.
13 * see Documentation/dvb/README.dvb-usb for more information
21 int dvb_usb_digitv_debug;
22 module_param_named(debug,dvb_usb_digitv_debug, int, 0644);
23 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
25 static int digitv_ctrl_msg(struct dvb_usb_device *d,
26 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
28 int wo = (rbuf == NULL || rlen == 0); /* write-only */
29 u8 sndbuf[7],rcvbuf[7];
30 memset(sndbuf,0,7); memset(rcvbuf,0,7);
34 sndbuf[2] = wo ? wlen : rlen;
37 memcpy(&sndbuf[3],wbuf,wlen);
38 dvb_usb_generic_write(d,sndbuf,7);
40 dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10);
41 memcpy(&rbuf,&rcvbuf[3],rlen);
47 static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
49 struct dvb_usb_device *d = i2c_get_adapdata(adap);
52 if (down_interruptible(&d->i2c_sem) < 0)
56 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
58 for (i = 0; i < num; i++) {
59 /* write/read request */
60 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
61 if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
62 msg[i+1].buf,msg[i+1].len) < 0)
66 if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0],
67 &msg[i].buf[1],msg[i].len-1,NULL,0) < 0)
75 static u32 digitv_i2c_func(struct i2c_adapter *adapter)
80 static struct i2c_algorithm digitv_i2c_algo = {
81 .name = "Nebula DigiTV USB I2C algorithm",
83 .master_xfer = digitv_i2c_xfer,
84 .functionality = digitv_i2c_func,
87 /* Callbacks for DVB USB */
88 static int digitv_identify_state (struct usb_device *udev, struct
89 dvb_usb_properties *props, struct dvb_usb_device_description **desc,
92 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
96 static int digitv_mt352_demod_init(struct dvb_frontend *fe)
98 static u8 mt352_clock_config[] = { 0x89, 0x38, 0x2d };
99 static u8 mt352_reset[] = { 0x50, 0x80 };
100 static u8 mt352_mclk_ratio[] = { 0x8b, 0x00 };
102 static u8 mt352_agc_cfg[] = { 0x68, 0xa0 };
103 static u8 mt352_adc_ctl_1_cfg[] = { 0x8E, 0xa0 };
104 static u8 mt352_acq_ctl[] = { 0x53, 0x50 };
105 static u8 mt352_agc_target[] = { 0x67, 0x20 };
107 static u8 mt352_rs_err_per[] = { 0x7c, 0x00, 0x01 };
108 static u8 mt352_snr_select[] = { 0x79, 0x00, 0x20 };
110 static u8 mt352_input_freq_1[] = { 0x56, 0x31, 0x05 };
112 static u8 mt352_scan_ctl[] = { 0x88, 0x0f };
113 static u8 mt352_capt_range[] = { 0x75, 0x32 };
115 mt352_write(fe, mt352_clock_config, sizeof(mt352_clock_config));
116 mt352_write(fe, mt352_reset, sizeof(mt352_reset));
118 mt352_write(fe, mt352_mclk_ratio, sizeof(mt352_mclk_ratio));
120 mt352_write(fe, mt352_agc_cfg, sizeof(mt352_agc_cfg));
121 mt352_write(fe, mt352_adc_ctl_1_cfg, sizeof(mt352_adc_ctl_1_cfg));
122 mt352_write(fe, mt352_acq_ctl, sizeof(mt352_acq_ctl));
123 mt352_write(fe, mt352_agc_target, sizeof(mt352_agc_target));
126 mt352_write(fe, mt352_rs_err_per, sizeof(mt352_rs_err_per));
127 mt352_write(fe, mt352_snr_select, sizeof(mt352_snr_select));
129 mt352_write(fe, mt352_input_freq_1, sizeof(mt352_input_freq_1));
131 mt352_write(fe, mt352_scan_ctl, sizeof(mt352_scan_ctl));
132 mt352_write(fe, mt352_capt_range, sizeof(mt352_capt_range));
137 static struct mt352_config digitv_mt352_config = {
138 .demod_address = 0x0, /* ignored by the digitv anyway */
139 .demod_init = digitv_mt352_demod_init,
140 .pll_set = NULL, /* TODO */
143 static struct nxt6000_config digitv_nxt6000_config = {
144 .demod_address = 0x0, /* ignored by the digitv anyway */
145 .clock_inversion = 0x0,
151 static int digitv_frontend_attach(struct dvb_usb_device *d)
153 if ((d->fe = mt352_attach(&digitv_mt352_config, &d->i2c_adap)) == NULL)
155 if ((d->fe = nxt6000_attach(&digitv_nxt6000_config, &d->i2c_adap)) == NULL) {
157 warn("nxt6000 support is not done yet, in fact you are one of the first "
158 "person who wants to use this device in Linux. Please report to "
159 "linux-dvb@linuxtv.org");
166 static struct dvb_usb_rc_key digitv_rc_keys[] = {
167 { 0x00, 0x16, KEY_POWER }, /* dummy key */
170 /* TODO is it really the NEC protocol ? */
171 int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
175 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4);
176 /* TODO state, maybe it is VV ? */
178 key[0] = 0x01; /* if something is inside the buffer, simulate key press */
180 /* call the universal NEC remote processor, to find out the key's state and event */
181 dvb_usb_nec_rc_key_to_event(d,key,event,state);
183 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
188 /* DVB USB Driver stuff */
189 static struct dvb_usb_properties digitv_properties;
191 static int digitv_probe(struct usb_interface *intf,
192 const struct usb_device_id *id)
194 return dvb_usb_device_init(intf,&digitv_properties,THIS_MODULE);
197 static struct usb_device_id digitv_table [] = {
198 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) },
199 { } /* Terminating entry */
201 MODULE_DEVICE_TABLE (usb, digitv_table);
203 static struct dvb_usb_properties digitv_properties = {
204 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
206 .usb_ctrl = CYPRESS_FX2,
207 .firmware = "dvb-usb-digitv-01.fw",
211 .streaming_ctrl = NULL,
213 .pid_filter_ctrl = NULL,
215 .frontend_attach = digitv_frontend_attach,
216 .tuner_attach = NULL, // digitv_tuner_attach,
217 .read_mac_address = NULL,
220 .rc_key_map = digitv_rc_keys,
221 .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys),
222 .rc_query = digitv_rc_query,
224 .identify_state = digitv_identify_state,
226 .i2c_algo = &digitv_i2c_algo,
228 .generic_bulk_ctrl_endpoint = 0x01,
229 /* parameter for the MPEG2-data transfer */
231 .type = DVB_USB_BULK,
241 .num_device_descs = 2,
243 { "Nebula Electronics uDigiTV DVB-T USB2.0)",
244 { &digitv_table[0], NULL },
250 static struct usb_driver digitv_driver = {
251 .owner = THIS_MODULE,
252 .name = "Nebula Electronics uDigiTV DVB-T USB2.0 device",
253 .probe = digitv_probe,
254 .disconnect = dvb_usb_device_exit,
255 .id_table = digitv_table,
259 static int __init digitv_module_init(void)
262 if ((result = usb_register(&digitv_driver))) {
263 err("usb_register failed. Error number %d",result);
270 static void __exit digitv_module_exit(void)
272 /* deregister this driver from the USB subsystem */
273 usb_deregister(&digitv_driver);
276 module_init (digitv_module_init);
277 module_exit (digitv_module_exit);
279 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
280 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
281 MODULE_VERSION("1.0-alpha");
282 MODULE_LICENSE("GPL");