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eea977ed MB |
1 | /* |
2 | * Fitipower FC0011 tuner driver | |
3 | * | |
4 | * Copyright (C) 2012 Michael Buesch <m@bues.ch> | |
5 | * | |
6 | * Derived from FC0012 tuner driver: | |
7 | * Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
24 | #include "fc0011.h" | |
25 | ||
26 | ||
27 | /* Tuner registers */ | |
28 | enum { | |
29 | FC11_REG_0, | |
30 | FC11_REG_FA, /* FA */ | |
31 | FC11_REG_FP, /* FP */ | |
32 | FC11_REG_XINHI, /* XIN high 8 bit */ | |
33 | FC11_REG_XINLO, /* XIN low 8 bit */ | |
34 | FC11_REG_VCO, /* VCO */ | |
35 | FC11_REG_VCOSEL, /* VCO select */ | |
36 | FC11_REG_7, /* Unknown tuner reg 7 */ | |
37 | FC11_REG_8, /* Unknown tuner reg 8 */ | |
38 | FC11_REG_9, | |
39 | FC11_REG_10, /* Unknown tuner reg 10 */ | |
40 | FC11_REG_11, /* Unknown tuner reg 11 */ | |
41 | FC11_REG_12, | |
42 | FC11_REG_RCCAL, /* RC calibrate */ | |
43 | FC11_REG_VCOCAL, /* VCO calibrate */ | |
44 | FC11_REG_15, | |
45 | FC11_REG_16, /* Unknown tuner reg 16 */ | |
46 | FC11_REG_17, | |
47 | ||
48 | FC11_NR_REGS, /* Number of registers */ | |
49 | }; | |
50 | ||
51 | enum FC11_REG_VCOSEL_bits { | |
52 | FC11_VCOSEL_2 = 0x08, /* VCO select 2 */ | |
53 | FC11_VCOSEL_1 = 0x10, /* VCO select 1 */ | |
54 | FC11_VCOSEL_CLKOUT = 0x20, /* Fix clock out */ | |
55 | FC11_VCOSEL_BW7M = 0x40, /* 7MHz bw */ | |
56 | FC11_VCOSEL_BW6M = 0x80, /* 6MHz bw */ | |
57 | }; | |
58 | ||
59 | enum FC11_REG_RCCAL_bits { | |
60 | FC11_RCCAL_FORCE = 0x10, /* force */ | |
61 | }; | |
62 | ||
63 | enum FC11_REG_VCOCAL_bits { | |
64 | FC11_VCOCAL_RUN = 0, /* VCO calibration run */ | |
65 | FC11_VCOCAL_VALUEMASK = 0x3F, /* VCO calibration value mask */ | |
66 | FC11_VCOCAL_OK = 0x40, /* VCO calibration Ok */ | |
67 | FC11_VCOCAL_RESET = 0x80, /* VCO calibration reset */ | |
68 | }; | |
69 | ||
70 | ||
71 | struct fc0011_priv { | |
72 | struct i2c_adapter *i2c; | |
73 | u8 addr; | |
74 | ||
75 | u32 frequency; | |
76 | u32 bandwidth; | |
77 | }; | |
78 | ||
79 | ||
80 | static int fc0011_writereg(struct fc0011_priv *priv, u8 reg, u8 val) | |
81 | { | |
82 | u8 buf[2] = { reg, val }; | |
83 | struct i2c_msg msg = { .addr = priv->addr, | |
84 | .flags = 0, .buf = buf, .len = 2 }; | |
85 | ||
86 | if (i2c_transfer(priv->i2c, &msg, 1) != 1) { | |
87 | dev_err(&priv->i2c->dev, | |
88 | "I2C write reg failed, reg: %02x, val: %02x\n", | |
89 | reg, val); | |
90 | return -EIO; | |
91 | } | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | static int fc0011_readreg(struct fc0011_priv *priv, u8 reg, u8 *val) | |
97 | { | |
98 | u8 dummy; | |
99 | struct i2c_msg msg[2] = { | |
100 | { .addr = priv->addr, | |
101 | .flags = 0, .buf = ®, .len = 1 }, | |
102 | { .addr = priv->addr, | |
103 | .flags = I2C_M_RD, .buf = val ? : &dummy, .len = 1 }, | |
104 | }; | |
105 | ||
106 | if (i2c_transfer(priv->i2c, msg, 2) != 2) { | |
107 | dev_err(&priv->i2c->dev, | |
108 | "I2C read failed, reg: %02x\n", reg); | |
109 | return -EIO; | |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
115 | static int fc0011_release(struct dvb_frontend *fe) | |
116 | { | |
117 | kfree(fe->tuner_priv); | |
118 | fe->tuner_priv = NULL; | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | static int fc0011_init(struct dvb_frontend *fe) | |
124 | { | |
125 | struct fc0011_priv *priv = fe->tuner_priv; | |
126 | int err; | |
127 | ||
128 | if (WARN_ON(!fe->callback)) | |
129 | return -EINVAL; | |
130 | ||
131 | err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, | |
132 | FC0011_FE_CALLBACK_POWER, priv->addr); | |
133 | if (err) { | |
134 | dev_err(&priv->i2c->dev, "Power-on callback failed\n"); | |
135 | return err; | |
136 | } | |
137 | err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, | |
138 | FC0011_FE_CALLBACK_RESET, priv->addr); | |
139 | if (err) { | |
140 | dev_err(&priv->i2c->dev, "Reset callback failed\n"); | |
141 | return err; | |
142 | } | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
147 | /* Initiate VCO calibration */ | |
148 | static int fc0011_vcocal_trigger(struct fc0011_priv *priv) | |
149 | { | |
150 | int err; | |
151 | ||
152 | err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RESET); | |
153 | if (err) | |
154 | return err; | |
155 | err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN); | |
156 | if (err) | |
157 | return err; | |
158 | ||
159 | return 0; | |
160 | } | |
161 | ||
162 | /* Read VCO calibration value */ | |
163 | static int fc0011_vcocal_read(struct fc0011_priv *priv, u8 *value) | |
164 | { | |
165 | int err; | |
166 | ||
167 | err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN); | |
168 | if (err) | |
169 | return err; | |
c421d5c9 | 170 | usleep_range(10000, 20000); |
eea977ed MB |
171 | err = fc0011_readreg(priv, FC11_REG_VCOCAL, value); |
172 | if (err) | |
173 | return err; | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
178 | static int fc0011_set_params(struct dvb_frontend *fe) | |
179 | { | |
180 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; | |
181 | struct fc0011_priv *priv = fe->tuner_priv; | |
182 | int err; | |
183 | unsigned int i, vco_retries; | |
184 | u32 freq = p->frequency / 1000; | |
185 | u32 bandwidth = p->bandwidth_hz / 1000; | |
03a497d4 | 186 | u32 fvco, xin, frac, xdiv, xdivr; |
eea977ed MB |
187 | u8 fa, fp, vco_sel, vco_cal; |
188 | u8 regs[FC11_NR_REGS] = { }; | |
189 | ||
190 | regs[FC11_REG_7] = 0x0F; | |
191 | regs[FC11_REG_8] = 0x3E; | |
192 | regs[FC11_REG_10] = 0xB8; | |
193 | regs[FC11_REG_11] = 0x80; | |
194 | regs[FC11_REG_RCCAL] = 0x04; | |
195 | err = fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]); | |
196 | err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]); | |
197 | err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]); | |
198 | err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]); | |
199 | err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); | |
200 | if (err) | |
201 | return -EIO; | |
202 | ||
203 | /* Set VCO freq and VCO div */ | |
204 | if (freq < 54000) { | |
205 | fvco = freq * 64; | |
206 | regs[FC11_REG_VCO] = 0x82; | |
207 | } else if (freq < 108000) { | |
208 | fvco = freq * 32; | |
209 | regs[FC11_REG_VCO] = 0x42; | |
210 | } else if (freq < 216000) { | |
211 | fvco = freq * 16; | |
212 | regs[FC11_REG_VCO] = 0x22; | |
213 | } else if (freq < 432000) { | |
214 | fvco = freq * 8; | |
215 | regs[FC11_REG_VCO] = 0x12; | |
216 | } else { | |
217 | fvco = freq * 4; | |
218 | regs[FC11_REG_VCO] = 0x0A; | |
219 | } | |
220 | ||
221 | /* Calc XIN. The PLL reference frequency is 18 MHz. */ | |
222 | xdiv = fvco / 18000; | |
aadb4640 | 223 | WARN_ON(xdiv > 0xFF); |
eea977ed MB |
224 | frac = fvco - xdiv * 18000; |
225 | frac = (frac << 15) / 18000; | |
226 | if (frac >= 16384) | |
227 | frac += 32786; | |
228 | if (!frac) | |
229 | xin = 0; | |
eea977ed | 230 | else |
03a497d4 | 231 | xin = clamp_t(u32, frac, 512, 65024); |
eea977ed MB |
232 | regs[FC11_REG_XINHI] = xin >> 8; |
233 | regs[FC11_REG_XINLO] = xin; | |
234 | ||
235 | /* Calc FP and FA */ | |
236 | xdivr = xdiv; | |
237 | if (fvco - xdiv * 18000 >= 9000) | |
238 | xdivr += 1; /* round */ | |
239 | fp = xdivr / 8; | |
240 | fa = xdivr - fp * 8; | |
241 | if (fa < 2) { | |
242 | fp -= 1; | |
243 | fa += 8; | |
244 | } | |
245 | if (fp > 0x1F) { | |
0917a604 MB |
246 | fp = 0x1F; |
247 | fa = 0xF; | |
eea977ed MB |
248 | } |
249 | if (fa >= fp) { | |
250 | dev_warn(&priv->i2c->dev, | |
251 | "fa %02X >= fp %02X, but trying to continue\n", | |
252 | (unsigned int)(u8)fa, (unsigned int)(u8)fp); | |
253 | } | |
254 | regs[FC11_REG_FA] = fa; | |
255 | regs[FC11_REG_FP] = fp; | |
256 | ||
257 | /* Select bandwidth */ | |
258 | switch (bandwidth) { | |
259 | case 8000: | |
260 | break; | |
261 | case 7000: | |
262 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW7M; | |
263 | break; | |
264 | default: | |
265 | dev_warn(&priv->i2c->dev, "Unsupported bandwidth %u kHz. " | |
266 | "Using 6000 kHz.\n", | |
267 | bandwidth); | |
268 | bandwidth = 6000; | |
269 | /* fallthrough */ | |
270 | case 6000: | |
271 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW6M; | |
272 | break; | |
273 | } | |
274 | ||
275 | /* Pre VCO select */ | |
276 | if (fvco < 2320000) { | |
277 | vco_sel = 0; | |
278 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
279 | } else if (fvco < 3080000) { | |
280 | vco_sel = 1; | |
281 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
282 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; | |
283 | } else { | |
284 | vco_sel = 2; | |
285 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
286 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; | |
287 | } | |
288 | ||
289 | /* Fix for low freqs */ | |
290 | if (freq < 45000) { | |
291 | regs[FC11_REG_FA] = 0x6; | |
292 | regs[FC11_REG_FP] = 0x11; | |
293 | } | |
294 | ||
295 | /* Clock out fix */ | |
296 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_CLKOUT; | |
297 | ||
298 | /* Write the cached registers */ | |
299 | for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++) { | |
300 | err = fc0011_writereg(priv, i, regs[i]); | |
301 | if (err) | |
302 | return err; | |
303 | } | |
304 | ||
305 | /* VCO calibration */ | |
306 | err = fc0011_vcocal_trigger(priv); | |
307 | if (err) | |
308 | return err; | |
309 | err = fc0011_vcocal_read(priv, &vco_cal); | |
310 | if (err) | |
311 | return err; | |
312 | vco_retries = 0; | |
a182fd8f | 313 | while (!(vco_cal & FC11_VCOCAL_OK) && vco_retries < 3) { |
eea977ed MB |
314 | /* Reset the tuner and try again */ |
315 | err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, | |
316 | FC0011_FE_CALLBACK_RESET, priv->addr); | |
317 | if (err) { | |
318 | dev_err(&priv->i2c->dev, "Failed to reset tuner\n"); | |
319 | return err; | |
320 | } | |
321 | /* Reinit tuner config */ | |
322 | err = 0; | |
323 | for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++) | |
324 | err |= fc0011_writereg(priv, i, regs[i]); | |
325 | err |= fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]); | |
326 | err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]); | |
327 | err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]); | |
328 | err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]); | |
329 | err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); | |
330 | if (err) | |
331 | return -EIO; | |
332 | /* VCO calibration */ | |
333 | err = fc0011_vcocal_trigger(priv); | |
334 | if (err) | |
335 | return err; | |
336 | err = fc0011_vcocal_read(priv, &vco_cal); | |
337 | if (err) | |
338 | return err; | |
339 | vco_retries++; | |
340 | } | |
341 | if (!(vco_cal & FC11_VCOCAL_OK)) { | |
342 | dev_err(&priv->i2c->dev, | |
343 | "Failed to read VCO calibration value (got %02X)\n", | |
344 | (unsigned int)vco_cal); | |
345 | return -EIO; | |
346 | } | |
347 | vco_cal &= FC11_VCOCAL_VALUEMASK; | |
348 | ||
349 | switch (vco_sel) { | |
aadb4640 MB |
350 | default: |
351 | WARN_ON(1); | |
eea977ed MB |
352 | case 0: |
353 | if (vco_cal < 8) { | |
354 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
355 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; | |
356 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
357 | regs[FC11_REG_VCOSEL]); | |
358 | if (err) | |
359 | return err; | |
360 | err = fc0011_vcocal_trigger(priv); | |
361 | if (err) | |
362 | return err; | |
363 | } else { | |
364 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
365 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
366 | regs[FC11_REG_VCOSEL]); | |
367 | if (err) | |
368 | return err; | |
369 | } | |
370 | break; | |
371 | case 1: | |
372 | if (vco_cal < 5) { | |
373 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
374 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; | |
375 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
376 | regs[FC11_REG_VCOSEL]); | |
377 | if (err) | |
378 | return err; | |
379 | err = fc0011_vcocal_trigger(priv); | |
380 | if (err) | |
381 | return err; | |
382 | } else if (vco_cal <= 48) { | |
383 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
384 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; | |
385 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
386 | regs[FC11_REG_VCOSEL]); | |
387 | if (err) | |
388 | return err; | |
389 | } else { | |
390 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
391 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
392 | regs[FC11_REG_VCOSEL]); | |
393 | if (err) | |
394 | return err; | |
395 | err = fc0011_vcocal_trigger(priv); | |
396 | if (err) | |
397 | return err; | |
398 | } | |
399 | break; | |
400 | case 2: | |
401 | if (vco_cal > 53) { | |
402 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
403 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; | |
404 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
405 | regs[FC11_REG_VCOSEL]); | |
406 | if (err) | |
407 | return err; | |
408 | err = fc0011_vcocal_trigger(priv); | |
409 | if (err) | |
410 | return err; | |
411 | } else { | |
412 | regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); | |
413 | regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; | |
414 | err = fc0011_writereg(priv, FC11_REG_VCOSEL, | |
415 | regs[FC11_REG_VCOSEL]); | |
416 | if (err) | |
417 | return err; | |
418 | } | |
419 | break; | |
420 | } | |
421 | err = fc0011_vcocal_read(priv, NULL); | |
422 | if (err) | |
423 | return err; | |
c421d5c9 | 424 | usleep_range(10000, 50000); |
eea977ed MB |
425 | |
426 | err = fc0011_readreg(priv, FC11_REG_RCCAL, ®s[FC11_REG_RCCAL]); | |
427 | if (err) | |
428 | return err; | |
429 | regs[FC11_REG_RCCAL] |= FC11_RCCAL_FORCE; | |
430 | err = fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); | |
431 | if (err) | |
432 | return err; | |
aadb4640 MB |
433 | regs[FC11_REG_16] = 0xB; |
434 | err = fc0011_writereg(priv, FC11_REG_16, regs[FC11_REG_16]); | |
eea977ed MB |
435 | if (err) |
436 | return err; | |
437 | ||
438 | dev_dbg(&priv->i2c->dev, "Tuned to " | |
439 | "fa=%02X fp=%02X xin=%02X%02X vco=%02X vcosel=%02X " | |
440 | "vcocal=%02X(%u) bw=%u\n", | |
441 | (unsigned int)regs[FC11_REG_FA], | |
442 | (unsigned int)regs[FC11_REG_FP], | |
443 | (unsigned int)regs[FC11_REG_XINHI], | |
444 | (unsigned int)regs[FC11_REG_XINLO], | |
445 | (unsigned int)regs[FC11_REG_VCO], | |
446 | (unsigned int)regs[FC11_REG_VCOSEL], | |
447 | (unsigned int)vco_cal, vco_retries, | |
448 | (unsigned int)bandwidth); | |
449 | ||
450 | priv->frequency = p->frequency; | |
451 | priv->bandwidth = p->bandwidth_hz; | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
456 | static int fc0011_get_frequency(struct dvb_frontend *fe, u32 *frequency) | |
457 | { | |
458 | struct fc0011_priv *priv = fe->tuner_priv; | |
459 | ||
460 | *frequency = priv->frequency; | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | static int fc0011_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) | |
466 | { | |
467 | *frequency = 0; | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | static int fc0011_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) | |
473 | { | |
474 | struct fc0011_priv *priv = fe->tuner_priv; | |
475 | ||
476 | *bandwidth = priv->bandwidth; | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
481 | static const struct dvb_tuner_ops fc0011_tuner_ops = { | |
482 | .info = { | |
483 | .name = "Fitipower FC0011", | |
484 | ||
485 | .frequency_min = 45000000, | |
486 | .frequency_max = 1000000000, | |
487 | }, | |
488 | ||
489 | .release = fc0011_release, | |
490 | .init = fc0011_init, | |
491 | ||
492 | .set_params = fc0011_set_params, | |
493 | ||
494 | .get_frequency = fc0011_get_frequency, | |
495 | .get_if_frequency = fc0011_get_if_frequency, | |
496 | .get_bandwidth = fc0011_get_bandwidth, | |
497 | }; | |
498 | ||
499 | struct dvb_frontend *fc0011_attach(struct dvb_frontend *fe, | |
500 | struct i2c_adapter *i2c, | |
501 | const struct fc0011_config *config) | |
502 | { | |
503 | struct fc0011_priv *priv; | |
504 | ||
505 | priv = kzalloc(sizeof(struct fc0011_priv), GFP_KERNEL); | |
506 | if (!priv) | |
507 | return NULL; | |
508 | ||
509 | priv->i2c = i2c; | |
510 | priv->addr = config->i2c_address; | |
511 | ||
512 | fe->tuner_priv = priv; | |
513 | fe->ops.tuner_ops = fc0011_tuner_ops; | |
514 | ||
515 | dev_info(&priv->i2c->dev, "Fitipower FC0011 tuner attached\n"); | |
516 | ||
517 | return fe; | |
518 | } | |
519 | EXPORT_SYMBOL(fc0011_attach); | |
520 | ||
521 | MODULE_DESCRIPTION("Fitipower FC0011 silicon tuner driver"); | |
522 | MODULE_AUTHOR("Michael Buesch <m@bues.ch>"); | |
523 | MODULE_LICENSE("GPL"); |