1 /* DVB USB compliant linux driver for Nebula Electronics uDigiTV DVB-T USB2.0
2 * receiver
3 *
4 * Copyright (C) 2005 Patrick Boettcher (patrick.boettcher@desy.de)
5 *
6 * partly based on the SDK published by Nebula Electronics
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation, version 2.
11 *
12 * see Documentation/dvb/README.dvb-usb for more information
13 */
14 #include "digitv.h"
15
16 #include "mt352.h"
17 #include "nxt6000.h"
18
19 /* debug */
20 static int dvb_usb_digitv_debug;
21 module_param_named(debug,dvb_usb_digitv_debug, int, 0644);
22 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
23
24 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
25
26 #define deb_rc(args...) dprintk(dvb_usb_digitv_debug,0x01,args)
27
28 static int digitv_ctrl_msg(struct dvb_usb_device *d,
29 u8 cmd, u8 vv, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
30 {
31 int wo = (rbuf == NULL || rlen == 0); /* write-only */
32 u8 sndbuf[7],rcvbuf[7];
33 memset(sndbuf,0,7); memset(rcvbuf,0,7);
34
35 sndbuf[0] = cmd;
36 sndbuf[1] = vv;
37 sndbuf[2] = wo ? wlen : rlen;
38
39 if (wo) {
40 memcpy(&sndbuf[3],wbuf,wlen);
41 dvb_usb_generic_write(d,sndbuf,7);
42 } else {
43 dvb_usb_generic_rw(d,sndbuf,7,rcvbuf,7,10);
44 memcpy(rbuf,&rcvbuf[3],rlen);
45 }
46 return 0;
47 }
48
49 /* I2C */
50 static int digitv_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg msg[],int num)
51 {
52 struct dvb_usb_device *d = i2c_get_adapdata(adap);
53 int i;
54
55 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
56 return -EAGAIN;
57
58 if (num > 2)
59 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
60
61 for (i = 0; i < num; i++) {
62 /* write/read request */
63 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
64 if (digitv_ctrl_msg(d, USB_READ_COFDM, msg[i].buf[0], NULL, 0,
65 msg[i+1].buf,msg[i+1].len) < 0)
66 break;
67 i++;
68 } else
69 if (digitv_ctrl_msg(d,USB_WRITE_COFDM, msg[i].buf[0],
70 &msg[i].buf[1],msg[i].len-1,NULL,0) < 0)
71 break;
72 }
73
74 mutex_unlock(&d->i2c_mutex);
75 return i;
76 }
77
78 static u32 digitv_i2c_func(struct i2c_adapter *adapter)
79 {
80 return I2C_FUNC_I2C;
81 }
82
83 static struct i2c_algorithm digitv_i2c_algo = {
84 .master_xfer = digitv_i2c_xfer,
85 .functionality = digitv_i2c_func,
86 };
87
88 /* Callbacks for DVB USB */
89 static int digitv_identify_state (struct usb_device *udev, struct
90 dvb_usb_device_properties *props, struct dvb_usb_device_description **desc,
91 int *cold)
92 {
93 *cold = udev->descriptor.iManufacturer == 0 && udev->descriptor.iProduct == 0;
94 return 0;
95 }
96
97 static int digitv_mt352_demod_init(struct dvb_frontend *fe)
98 {
99 static u8 reset_buf[] = { 0x89, 0x38, 0x8a, 0x2d, 0x50, 0x80 };
100 static u8 init_buf[] = { 0x68, 0xa0, 0x8e, 0x40, 0x53, 0x50,
101 0x67, 0x20, 0x7d, 0x01, 0x7c, 0x00, 0x7a, 0x00,
102 0x79, 0x20, 0x57, 0x05, 0x56, 0x31, 0x88, 0x0f,
103 0x75, 0x32 };
104 int i;
105
106 for (i = 0; i < ARRAY_SIZE(reset_buf); i += 2)
107 mt352_write(fe, &reset_buf[i], 2);
108
109 msleep(1);
110
111 for (i = 0; i < ARRAY_SIZE(init_buf); i += 2)
112 mt352_write(fe, &init_buf[i], 2);
113
114 return 0;
115 }
116
117 static struct mt352_config digitv_mt352_config = {
118 .demod_init = digitv_mt352_demod_init,
119 };
120
121 static int digitv_nxt6000_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
122 {
123 struct dvb_usb_adapter *adap = fe->dvb->priv;
124 u8 b[5];
125
126 fe->ops.tuner_ops.calc_regs(fe, fep, b, sizeof(b));
127 if (fe->ops.i2c_gate_ctrl)
128 fe->ops.i2c_gate_ctrl(fe, 1);
129 return digitv_ctrl_msg(adap->dev, USB_WRITE_TUNER, 0, &b[1], 4, NULL, 0);
130 }
131
132 static struct nxt6000_config digitv_nxt6000_config = {
133 .clock_inversion = 1,
134 };
135
136 static int digitv_frontend_attach(struct dvb_usb_adapter *adap)
137 {
138 struct digitv_state *st = adap->dev->priv;
139
140 if ((adap->fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) {
141 st->is_nxt6000 = 0;
142 return 0;
143 }
144 if ((adap->fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) {
145 st->is_nxt6000 = 1;
146 return 0;
147 }
148 return -EIO;
149 }
150
151 static int digitv_tuner_attach(struct dvb_usb_adapter *adap)
152 {
153 struct digitv_state *st = adap->dev->priv;
154
155 if (!dvb_attach(dvb_pll_attach, adap->fe, 0x60, NULL, DVB_PLL_TDED4))
156 return -ENODEV;
157
158 if (st->is_nxt6000)
159 adap->fe->ops.tuner_ops.set_params = digitv_nxt6000_tuner_set_params;
160
161 return 0;
162 }
163
164 static struct dvb_usb_rc_key digitv_rc_keys[] = {
165 { 0x5f, 0x55, KEY_0 },
166 { 0x6f, 0x55, KEY_1 },
167 { 0x9f, 0x55, KEY_2 },
168 { 0xaf, 0x55, KEY_3 },
169 { 0x5f, 0x56, KEY_4 },
170 { 0x6f, 0x56, KEY_5 },
171 { 0x9f, 0x56, KEY_6 },
172 { 0xaf, 0x56, KEY_7 },
173 { 0x5f, 0x59, KEY_8 },
174 { 0x6f, 0x59, KEY_9 },
175 { 0x9f, 0x59, KEY_TV },
176 { 0xaf, 0x59, KEY_AUX },
177 { 0x5f, 0x5a, KEY_DVD },
178 { 0x6f, 0x5a, KEY_POWER },
179 { 0x9f, 0x5a, KEY_MHP }, /* labelled 'Picture' */
180 { 0xaf, 0x5a, KEY_AUDIO },
181 { 0x5f, 0x65, KEY_INFO },
182 { 0x6f, 0x65, KEY_F13 }, /* 16:9 */
183 { 0x9f, 0x65, KEY_F14 }, /* 14:9 */
184 { 0xaf, 0x65, KEY_EPG },
185 { 0x5f, 0x66, KEY_EXIT },
186 { 0x6f, 0x66, KEY_MENU },
187 { 0x9f, 0x66, KEY_UP },
188 { 0xaf, 0x66, KEY_DOWN },
189 { 0x5f, 0x69, KEY_LEFT },
190 { 0x6f, 0x69, KEY_RIGHT },
191 { 0x9f, 0x69, KEY_ENTER },
192 { 0xaf, 0x69, KEY_CHANNELUP },
193 { 0x5f, 0x6a, KEY_CHANNELDOWN },
194 { 0x6f, 0x6a, KEY_VOLUMEUP },
195 { 0x9f, 0x6a, KEY_VOLUMEDOWN },
196 { 0xaf, 0x6a, KEY_RED },
197 { 0x5f, 0x95, KEY_GREEN },
198 { 0x6f, 0x95, KEY_YELLOW },
199 { 0x9f, 0x95, KEY_BLUE },
200 { 0xaf, 0x95, KEY_SUBTITLE },
201 { 0x5f, 0x96, KEY_F15 }, /* AD */
202 { 0x6f, 0x96, KEY_TEXT },
203 { 0x9f, 0x96, KEY_MUTE },
204 { 0xaf, 0x96, KEY_REWIND },
205 { 0x5f, 0x99, KEY_STOP },
206 { 0x6f, 0x99, KEY_PLAY },
207 { 0x9f, 0x99, KEY_FASTFORWARD },
208 { 0xaf, 0x99, KEY_F16 }, /* chapter */
209 { 0x5f, 0x9a, KEY_PAUSE },
210 { 0x6f, 0x9a, KEY_PLAY },
211 { 0x9f, 0x9a, KEY_RECORD },
212 { 0xaf, 0x9a, KEY_F17 }, /* picture in picture */
213 { 0x5f, 0xa5, KEY_KPPLUS }, /* zoom in */
214 { 0x6f, 0xa5, KEY_KPMINUS }, /* zoom out */
215 { 0x9f, 0xa5, KEY_F18 }, /* capture */
216 { 0xaf, 0xa5, KEY_F19 }, /* web */
217 { 0x5f, 0xa6, KEY_EMAIL },
218 { 0x6f, 0xa6, KEY_PHONE },
219 { 0x9f, 0xa6, KEY_PC },
220 };
221
222 static int digitv_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
223 {
224 int i;
225 u8 key[5];
226 u8 b[4] = { 0 };
227
228 *event = 0;
229 *state = REMOTE_NO_KEY_PRESSED;
230
231 digitv_ctrl_msg(d,USB_READ_REMOTE,0,NULL,0,&key[1],4);
232
233 /* Tell the device we've read the remote. Not sure how necessary
234 this is, but the Nebula SDK does it. */
235 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
236
237 /* if something is inside the buffer, simulate key press */
238 if (key[1] != 0)
239 {
240 for (i = 0; i < d->props.rc_key_map_size; i++) {
241 if (d->props.rc_key_map[i].custom == key[1] &&
242 d->props.rc_key_map[i].data == key[2]) {
243 *event = d->props.rc_key_map[i].event;
244 *state = REMOTE_KEY_PRESSED;
245 return 0;
246 }
247 }
248 }
249
250 if (key[0] != 0)
251 deb_rc("key: %x %x %x %x %x\n",key[0],key[1],key[2],key[3],key[4]);
252 return 0;
253 }
254
255 /* DVB USB Driver stuff */
256 static struct dvb_usb_device_properties digitv_properties;
257
258 static int digitv_probe(struct usb_interface *intf,
259 const struct usb_device_id *id)
260 {
261 struct dvb_usb_device *d;
262 int ret = dvb_usb_device_init(intf, &digitv_properties, THIS_MODULE, &d,
263 adapter_nr);
264 if (ret == 0) {
265 u8 b[4] = { 0 };
266
267 if (d != NULL) { /* do that only when the firmware is loaded */
268 b[0] = 1;
269 digitv_ctrl_msg(d,USB_WRITE_REMOTE_TYPE,0,b,4,NULL,0);
270
271 b[0] = 0;
272 digitv_ctrl_msg(d,USB_WRITE_REMOTE,0,b,4,NULL,0);
273 }
274 }
275 return ret;
276 }
277
278 static struct usb_device_id digitv_table [] = {
279 { USB_DEVICE(USB_VID_ANCHOR, USB_PID_NEBULA_DIGITV) },
280 { } /* Terminating entry */
281 };
282 MODULE_DEVICE_TABLE (usb, digitv_table);
283
284 static struct dvb_usb_device_properties digitv_properties = {
285 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
286
287 .usb_ctrl = CYPRESS_FX2,
288 .firmware = "dvb-usb-digitv-02.fw",
289
290 .size_of_priv = sizeof(struct digitv_state),
291
292 .num_adapters = 1,
293 .adapter = {
294 {
295 .frontend_attach = digitv_frontend_attach,
296 .tuner_attach = digitv_tuner_attach,
297
298 /* parameter for the MPEG2-data transfer */
299 .stream = {
300 .type = USB_BULK,
301 .count = 7,
302 .endpoint = 0x02,
303 .u = {
304 .bulk = {
305 .buffersize = 4096,
306 }
307 }
308 },
309 }
310 },
311 .identify_state = digitv_identify_state,
312
313 .rc_interval = 1000,
314 .rc_key_map = digitv_rc_keys,
315 .rc_key_map_size = ARRAY_SIZE(digitv_rc_keys),
316 .rc_query = digitv_rc_query,
317
318 .i2c_algo = &digitv_i2c_algo,
319
320 .generic_bulk_ctrl_endpoint = 0x01,
321
322 .num_device_descs = 1,
323 .devices = {
324 { "Nebula Electronics uDigiTV DVB-T USB2.0)",
325 { &digitv_table[0], NULL },
326 { NULL },
327 },
328 { NULL },
329 }
330 };
331
332 static struct usb_driver digitv_driver = {
333 .name = "dvb_usb_digitv",
334 .probe = digitv_probe,
335 .disconnect = dvb_usb_device_exit,
336 .id_table = digitv_table,
337 };
338
339 /* module stuff */
340 static int __init digitv_module_init(void)
341 {
342 int result;
343 if ((result = usb_register(&digitv_driver))) {
344 err("usb_register failed. Error number %d",result);
345 return result;
346 }
347
348 return 0;
349 }
350
351 static void __exit digitv_module_exit(void)
352 {
353 /* deregister this driver from the USB subsystem */
354 usb_deregister(&digitv_driver);
355 }
356
357 module_init (digitv_module_init);
358 module_exit (digitv_module_exit);
359
360 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
361 MODULE_DESCRIPTION("Driver for Nebula Electronics uDigiTV DVB-T USB2.0");
362 MODULE_VERSION("1.0-alpha");
363 MODULE_LICENSE("GPL");
364
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