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