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Commit | Line | Data |
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04a45929 KL |
1 | /* |
2 | * Support for NXT2002 and NXT2004 - VSB/QAM | |
3 | * | |
46365f3c MK |
4 | * Copyright (C) 2005 Kirk Lapray <kirk.lapray@gmail.com> |
5 | * Copyright (C) 2006 Michael Krufky <mkrufky@m1k.net> | |
04a45929 | 6 | * based on nxt2002 by Taylor Jacob <rtjacob@earthlink.net> |
46365f3c | 7 | * and nxt2004 by Jean-Francois Thibert <jeanfrancois@sagetv.com> |
04a45929 KL |
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 | ||
25 | /* | |
26 | * NOTES ABOUT THIS DRIVER | |
27 | * | |
28 | * This Linux driver supports: | |
29 | * B2C2/BBTI Technisat Air2PC - ATSC (NXT2002) | |
30 | * AverTVHD MCE A180 (NXT2004) | |
31 | * ATI HDTV Wonder (NXT2004) | |
32 | * | |
33 | * This driver needs external firmware. Please use the command | |
34 | * "<kerneldir>/Documentation/dvb/get_dvb_firmware nxt2002" or | |
35 | * "<kerneldir>/Documentation/dvb/get_dvb_firmware nxt2004" to | |
36 | * download/extract the appropriate firmware, and then copy it to | |
37 | * /usr/lib/hotplug/firmware/ or /lib/firmware/ | |
38 | * (depending on configuration of firmware hotplug). | |
39 | */ | |
40 | #define NXT2002_DEFAULT_FIRMWARE "dvb-fe-nxt2002.fw" | |
41 | #define NXT2004_DEFAULT_FIRMWARE "dvb-fe-nxt2004.fw" | |
42 | #define CRC_CCIT_MASK 0x1021 | |
43 | ||
44 | #include <linux/kernel.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/module.h> | |
18e55eea TS |
47 | #include <linux/slab.h> |
48 | #include <linux/string.h> | |
04a45929 KL |
49 | |
50 | #include "dvb_frontend.h" | |
04a45929 KL |
51 | #include "nxt200x.h" |
52 | ||
53 | struct nxt200x_state { | |
54 | ||
55 | struct i2c_adapter* i2c; | |
04a45929 KL |
56 | const struct nxt200x_config* config; |
57 | struct dvb_frontend frontend; | |
58 | ||
59 | /* demodulator private data */ | |
60 | nxt_chip_type demod_chip; | |
61 | u8 initialised:1; | |
62 | }; | |
63 | ||
64 | static int debug; | |
65 | #define dprintk(args...) \ | |
66 | do { \ | |
67 | if (debug) printk(KERN_DEBUG "nxt200x: " args); \ | |
68 | } while (0) | |
69 | ||
70 | static int i2c_writebytes (struct nxt200x_state* state, u8 addr, u8 *buf, u8 len) | |
71 | { | |
72 | int err; | |
73 | struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = buf, .len = len }; | |
74 | ||
75 | if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { | |
76 | printk (KERN_WARNING "nxt200x: %s: i2c write error (addr 0x%02x, err == %i)\n", | |
271ddbf7 | 77 | __func__, addr, err); |
04a45929 KL |
78 | return -EREMOTEIO; |
79 | } | |
80 | return 0; | |
81 | } | |
82 | ||
eda9e4e2 | 83 | static int i2c_readbytes(struct nxt200x_state *state, u8 addr, u8 *buf, u8 len) |
04a45929 KL |
84 | { |
85 | int err; | |
86 | struct i2c_msg msg = { .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len }; | |
87 | ||
88 | if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { | |
89 | printk (KERN_WARNING "nxt200x: %s: i2c read error (addr 0x%02x, err == %i)\n", | |
271ddbf7 | 90 | __func__, addr, err); |
04a45929 KL |
91 | return -EREMOTEIO; |
92 | } | |
93 | return 0; | |
94 | } | |
95 | ||
bc179153 DW |
96 | static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg, |
97 | const u8 *buf, u8 len) | |
04a45929 KL |
98 | { |
99 | u8 buf2 [len+1]; | |
100 | int err; | |
101 | struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf2, .len = len + 1 }; | |
102 | ||
103 | buf2[0] = reg; | |
104 | memcpy(&buf2[1], buf, len); | |
105 | ||
106 | if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { | |
107 | printk (KERN_WARNING "nxt200x: %s: i2c write error (addr 0x%02x, err == %i)\n", | |
271ddbf7 | 108 | __func__, state->config->demod_address, err); |
04a45929 KL |
109 | return -EREMOTEIO; |
110 | } | |
111 | return 0; | |
112 | } | |
113 | ||
eda9e4e2 | 114 | static int nxt200x_readbytes(struct nxt200x_state *state, u8 reg, u8 *buf, u8 len) |
04a45929 KL |
115 | { |
116 | u8 reg2 [] = { reg }; | |
117 | ||
118 | struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = reg2, .len = 1 }, | |
119 | { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = len } }; | |
120 | ||
121 | int err; | |
122 | ||
123 | if ((err = i2c_transfer (state->i2c, msg, 2)) != 2) { | |
124 | printk (KERN_WARNING "nxt200x: %s: i2c read error (addr 0x%02x, err == %i)\n", | |
271ddbf7 | 125 | __func__, state->config->demod_address, err); |
04a45929 KL |
126 | return -EREMOTEIO; |
127 | } | |
128 | return 0; | |
129 | } | |
130 | ||
131 | static u16 nxt200x_crc(u16 crc, u8 c) | |
132 | { | |
133 | u8 i; | |
134 | u16 input = (u16) c & 0xFF; | |
135 | ||
136 | input<<=8; | |
137 | for(i=0; i<8; i++) { | |
138 | if((crc^input) & 0x8000) | |
139 | crc=(crc<<1)^CRC_CCIT_MASK; | |
140 | else | |
141 | crc<<=1; | |
142 | input<<=1; | |
143 | } | |
144 | return crc; | |
145 | } | |
146 | ||
147 | static int nxt200x_writereg_multibyte (struct nxt200x_state* state, u8 reg, u8* data, u8 len) | |
148 | { | |
149 | u8 attr, len2, buf; | |
271ddbf7 | 150 | dprintk("%s\n", __func__); |
04a45929 KL |
151 | |
152 | /* set mutli register register */ | |
153 | nxt200x_writebytes(state, 0x35, ®, 1); | |
154 | ||
155 | /* send the actual data */ | |
156 | nxt200x_writebytes(state, 0x36, data, len); | |
157 | ||
158 | switch (state->demod_chip) { | |
159 | case NXT2002: | |
160 | len2 = len; | |
161 | buf = 0x02; | |
162 | break; | |
163 | case NXT2004: | |
164 | /* probably not right, but gives correct values */ | |
165 | attr = 0x02; | |
166 | if (reg & 0x80) { | |
167 | attr = attr << 1; | |
168 | if (reg & 0x04) | |
169 | attr = attr >> 1; | |
170 | } | |
171 | /* set write bit */ | |
172 | len2 = ((attr << 4) | 0x10) | len; | |
173 | buf = 0x80; | |
174 | break; | |
175 | default: | |
176 | return -EINVAL; | |
177 | break; | |
178 | } | |
179 | ||
180 | /* set multi register length */ | |
181 | nxt200x_writebytes(state, 0x34, &len2, 1); | |
182 | ||
183 | /* toggle the multireg write bit */ | |
184 | nxt200x_writebytes(state, 0x21, &buf, 1); | |
185 | ||
186 | nxt200x_readbytes(state, 0x21, &buf, 1); | |
187 | ||
188 | switch (state->demod_chip) { | |
189 | case NXT2002: | |
190 | if ((buf & 0x02) == 0) | |
191 | return 0; | |
192 | break; | |
193 | case NXT2004: | |
194 | if (buf == 0) | |
195 | return 0; | |
196 | break; | |
197 | default: | |
198 | return -EINVAL; | |
199 | break; | |
200 | } | |
201 | ||
202 | printk(KERN_WARNING "nxt200x: Error writing multireg register 0x%02X\n",reg); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static int nxt200x_readreg_multibyte (struct nxt200x_state* state, u8 reg, u8* data, u8 len) | |
208 | { | |
209 | int i; | |
210 | u8 buf, len2, attr; | |
271ddbf7 | 211 | dprintk("%s\n", __func__); |
04a45929 KL |
212 | |
213 | /* set mutli register register */ | |
214 | nxt200x_writebytes(state, 0x35, ®, 1); | |
215 | ||
216 | switch (state->demod_chip) { | |
217 | case NXT2002: | |
218 | /* set multi register length */ | |
219 | len2 = len & 0x80; | |
220 | nxt200x_writebytes(state, 0x34, &len2, 1); | |
221 | ||
222 | /* read the actual data */ | |
223 | nxt200x_readbytes(state, reg, data, len); | |
224 | return 0; | |
225 | break; | |
226 | case NXT2004: | |
227 | /* probably not right, but gives correct values */ | |
228 | attr = 0x02; | |
229 | if (reg & 0x80) { | |
230 | attr = attr << 1; | |
231 | if (reg & 0x04) | |
232 | attr = attr >> 1; | |
233 | } | |
234 | ||
235 | /* set multi register length */ | |
236 | len2 = (attr << 4) | len; | |
237 | nxt200x_writebytes(state, 0x34, &len2, 1); | |
238 | ||
239 | /* toggle the multireg bit*/ | |
240 | buf = 0x80; | |
241 | nxt200x_writebytes(state, 0x21, &buf, 1); | |
242 | ||
f93cf038 KL |
243 | /* read the actual data */ |
244 | for(i = 0; i < len; i++) { | |
245 | nxt200x_readbytes(state, 0x36 + i, &data[i], 1); | |
04a45929 | 246 | } |
f93cf038 | 247 | return 0; |
04a45929 KL |
248 | break; |
249 | default: | |
250 | return -EINVAL; | |
251 | break; | |
252 | } | |
04a45929 KL |
253 | } |
254 | ||
255 | static void nxt200x_microcontroller_stop (struct nxt200x_state* state) | |
256 | { | |
257 | u8 buf, stopval, counter = 0; | |
271ddbf7 | 258 | dprintk("%s\n", __func__); |
04a45929 KL |
259 | |
260 | /* set correct stop value */ | |
261 | switch (state->demod_chip) { | |
262 | case NXT2002: | |
263 | stopval = 0x40; | |
264 | break; | |
265 | case NXT2004: | |
266 | stopval = 0x10; | |
267 | break; | |
268 | default: | |
269 | stopval = 0; | |
270 | break; | |
271 | } | |
272 | ||
273 | buf = 0x80; | |
274 | nxt200x_writebytes(state, 0x22, &buf, 1); | |
275 | ||
276 | while (counter < 20) { | |
277 | nxt200x_readbytes(state, 0x31, &buf, 1); | |
278 | if (buf & stopval) | |
279 | return; | |
280 | msleep(10); | |
281 | counter++; | |
282 | } | |
283 | ||
284 | printk(KERN_WARNING "nxt200x: Timeout waiting for nxt200x to stop. This is ok after firmware upload.\n"); | |
285 | return; | |
286 | } | |
287 | ||
288 | static void nxt200x_microcontroller_start (struct nxt200x_state* state) | |
289 | { | |
290 | u8 buf; | |
271ddbf7 | 291 | dprintk("%s\n", __func__); |
04a45929 KL |
292 | |
293 | buf = 0x00; | |
294 | nxt200x_writebytes(state, 0x22, &buf, 1); | |
295 | } | |
296 | ||
297 | static void nxt2004_microcontroller_init (struct nxt200x_state* state) | |
298 | { | |
299 | u8 buf[9]; | |
300 | u8 counter = 0; | |
271ddbf7 | 301 | dprintk("%s\n", __func__); |
04a45929 KL |
302 | |
303 | buf[0] = 0x00; | |
304 | nxt200x_writebytes(state, 0x2b, buf, 1); | |
305 | buf[0] = 0x70; | |
306 | nxt200x_writebytes(state, 0x34, buf, 1); | |
307 | buf[0] = 0x04; | |
308 | nxt200x_writebytes(state, 0x35, buf, 1); | |
309 | buf[0] = 0x01; buf[1] = 0x23; buf[2] = 0x45; buf[3] = 0x67; buf[4] = 0x89; | |
310 | buf[5] = 0xAB; buf[6] = 0xCD; buf[7] = 0xEF; buf[8] = 0xC0; | |
311 | nxt200x_writebytes(state, 0x36, buf, 9); | |
312 | buf[0] = 0x80; | |
313 | nxt200x_writebytes(state, 0x21, buf, 1); | |
314 | ||
315 | while (counter < 20) { | |
316 | nxt200x_readbytes(state, 0x21, buf, 1); | |
317 | if (buf[0] == 0) | |
318 | return; | |
319 | msleep(10); | |
320 | counter++; | |
321 | } | |
322 | ||
323 | printk(KERN_WARNING "nxt200x: Timeout waiting for nxt2004 to init.\n"); | |
324 | ||
325 | return; | |
326 | } | |
327 | ||
328 | static int nxt200x_writetuner (struct nxt200x_state* state, u8* data) | |
329 | { | |
330 | u8 buf, count = 0; | |
331 | ||
271ddbf7 | 332 | dprintk("%s\n", __func__); |
04a45929 | 333 | |
638a3fba | 334 | dprintk("Tuner Bytes: %02X %02X %02X %02X\n", data[1], data[2], data[3], data[4]); |
04a45929 | 335 | |
f0fa86a5 MK |
336 | /* if NXT2004, write directly to tuner. if NXT2002, write through NXT chip. |
337 | * direct write is required for Philips TUV1236D and ALPS TDHU2 */ | |
338 | switch (state->demod_chip) { | |
339 | case NXT2004: | |
638a3fba | 340 | if (i2c_writebytes(state, data[0], data+1, 4)) |
9101e622 | 341 | printk(KERN_WARNING "nxt200x: error writing to tuner\n"); |
f0fa86a5 MK |
342 | /* wait until we have a lock */ |
343 | while (count < 20) { | |
638a3fba | 344 | i2c_readbytes(state, data[0], &buf, 1); |
f0fa86a5 MK |
345 | if (buf & 0x40) |
346 | return 0; | |
347 | msleep(100); | |
348 | count++; | |
349 | } | |
350 | printk("nxt2004: timeout waiting for tuner lock\n"); | |
351 | break; | |
352 | case NXT2002: | |
353 | /* set the i2c transfer speed to the tuner */ | |
354 | buf = 0x03; | |
355 | nxt200x_writebytes(state, 0x20, &buf, 1); | |
356 | ||
357 | /* setup to transfer 4 bytes via i2c */ | |
358 | buf = 0x04; | |
359 | nxt200x_writebytes(state, 0x34, &buf, 1); | |
360 | ||
361 | /* write actual tuner bytes */ | |
638a3fba | 362 | nxt200x_writebytes(state, 0x36, data+1, 4); |
f0fa86a5 MK |
363 | |
364 | /* set tuner i2c address */ | |
638a3fba | 365 | buf = data[0] << 1; |
f0fa86a5 MK |
366 | nxt200x_writebytes(state, 0x35, &buf, 1); |
367 | ||
368 | /* write UC Opmode to begin transfer */ | |
369 | buf = 0x80; | |
370 | nxt200x_writebytes(state, 0x21, &buf, 1); | |
371 | ||
372 | while (count < 20) { | |
373 | nxt200x_readbytes(state, 0x21, &buf, 1); | |
374 | if ((buf & 0x80)== 0x00) | |
375 | return 0; | |
376 | msleep(100); | |
377 | count++; | |
378 | } | |
379 | printk("nxt2002: timeout error writing tuner\n"); | |
380 | break; | |
381 | default: | |
382 | return -EINVAL; | |
383 | break; | |
04a45929 | 384 | } |
f0fa86a5 | 385 | return 0; |
04a45929 KL |
386 | } |
387 | ||
388 | static void nxt200x_agc_reset(struct nxt200x_state* state) | |
389 | { | |
390 | u8 buf; | |
271ddbf7 | 391 | dprintk("%s\n", __func__); |
04a45929 KL |
392 | |
393 | switch (state->demod_chip) { | |
394 | case NXT2002: | |
395 | buf = 0x08; | |
396 | nxt200x_writebytes(state, 0x08, &buf, 1); | |
397 | buf = 0x00; | |
398 | nxt200x_writebytes(state, 0x08, &buf, 1); | |
399 | break; | |
400 | case NXT2004: | |
401 | nxt200x_readreg_multibyte(state, 0x08, &buf, 1); | |
402 | buf = 0x08; | |
403 | nxt200x_writereg_multibyte(state, 0x08, &buf, 1); | |
404 | buf = 0x00; | |
405 | nxt200x_writereg_multibyte(state, 0x08, &buf, 1); | |
406 | break; | |
407 | default: | |
408 | break; | |
409 | } | |
410 | return; | |
411 | } | |
412 | ||
413 | static int nxt2002_load_firmware (struct dvb_frontend* fe, const struct firmware *fw) | |
414 | { | |
415 | ||
416 | struct nxt200x_state* state = fe->demodulator_priv; | |
417 | u8 buf[3], written = 0, chunkpos = 0; | |
418 | u16 rambase, position, crc = 0; | |
419 | ||
271ddbf7 | 420 | dprintk("%s\n", __func__); |
04a45929 KL |
421 | dprintk("Firmware is %zu bytes\n", fw->size); |
422 | ||
423 | /* Get the RAM base for this nxt2002 */ | |
424 | nxt200x_readbytes(state, 0x10, buf, 1); | |
425 | ||
426 | if (buf[0] & 0x10) | |
427 | rambase = 0x1000; | |
428 | else | |
429 | rambase = 0x0000; | |
430 | ||
431 | dprintk("rambase on this nxt2002 is %04X\n", rambase); | |
432 | ||
433 | /* Hold the micro in reset while loading firmware */ | |
434 | buf[0] = 0x80; | |
435 | nxt200x_writebytes(state, 0x2B, buf, 1); | |
436 | ||
437 | for (position = 0; position < fw->size; position++) { | |
438 | if (written == 0) { | |
439 | crc = 0; | |
440 | chunkpos = 0x28; | |
441 | buf[0] = ((rambase + position) >> 8); | |
442 | buf[1] = (rambase + position) & 0xFF; | |
443 | buf[2] = 0x81; | |
444 | /* write starting address */ | |
445 | nxt200x_writebytes(state, 0x29, buf, 3); | |
446 | } | |
447 | written++; | |
448 | chunkpos++; | |
449 | ||
450 | if ((written % 4) == 0) | |
451 | nxt200x_writebytes(state, chunkpos, &fw->data[position-3], 4); | |
452 | ||
453 | crc = nxt200x_crc(crc, fw->data[position]); | |
454 | ||
455 | if ((written == 255) || (position+1 == fw->size)) { | |
456 | /* write remaining bytes of firmware */ | |
457 | nxt200x_writebytes(state, chunkpos+4-(written %4), | |
458 | &fw->data[position-(written %4) + 1], | |
459 | written %4); | |
460 | buf[0] = crc << 8; | |
461 | buf[1] = crc & 0xFF; | |
462 | ||
463 | /* write crc */ | |
464 | nxt200x_writebytes(state, 0x2C, buf, 2); | |
465 | ||
466 | /* do a read to stop things */ | |
467 | nxt200x_readbytes(state, 0x2A, buf, 1); | |
468 | ||
469 | /* set transfer mode to complete */ | |
470 | buf[0] = 0x80; | |
471 | nxt200x_writebytes(state, 0x2B, buf, 1); | |
472 | ||
473 | written = 0; | |
474 | } | |
475 | } | |
476 | ||
477 | return 0; | |
478 | }; | |
479 | ||
480 | static int nxt2004_load_firmware (struct dvb_frontend* fe, const struct firmware *fw) | |
481 | { | |
482 | ||
483 | struct nxt200x_state* state = fe->demodulator_priv; | |
484 | u8 buf[3]; | |
485 | u16 rambase, position, crc=0; | |
486 | ||
271ddbf7 | 487 | dprintk("%s\n", __func__); |
04a45929 KL |
488 | dprintk("Firmware is %zu bytes\n", fw->size); |
489 | ||
490 | /* set rambase */ | |
491 | rambase = 0x1000; | |
492 | ||
493 | /* hold the micro in reset while loading firmware */ | |
494 | buf[0] = 0x80; | |
495 | nxt200x_writebytes(state, 0x2B, buf,1); | |
496 | ||
497 | /* calculate firmware CRC */ | |
498 | for (position = 0; position < fw->size; position++) { | |
9101e622 | 499 | crc = nxt200x_crc(crc, fw->data[position]); |
04a45929 KL |
500 | } |
501 | ||
502 | buf[0] = rambase >> 8; | |
503 | buf[1] = rambase & 0xFF; | |
504 | buf[2] = 0x81; | |
505 | /* write starting address */ | |
506 | nxt200x_writebytes(state,0x29,buf,3); | |
507 | ||
508 | for (position = 0; position < fw->size;) { | |
509 | nxt200x_writebytes(state, 0x2C, &fw->data[position], | |
510 | fw->size-position > 255 ? 255 : fw->size-position); | |
511 | position += (fw->size-position > 255 ? 255 : fw->size-position); | |
512 | } | |
513 | buf[0] = crc >> 8; | |
514 | buf[1] = crc & 0xFF; | |
515 | ||
516 | dprintk("firmware crc is 0x%02X 0x%02X\n", buf[0], buf[1]); | |
517 | ||
518 | /* write crc */ | |
519 | nxt200x_writebytes(state, 0x2C, buf,2); | |
520 | ||
521 | /* do a read to stop things */ | |
522 | nxt200x_readbytes(state, 0x2C, buf, 1); | |
523 | ||
524 | /* set transfer mode to complete */ | |
525 | buf[0] = 0x80; | |
526 | nxt200x_writebytes(state, 0x2B, buf,1); | |
527 | ||
528 | return 0; | |
529 | }; | |
530 | ||
81931e94 | 531 | static int nxt200x_setup_frontend_parameters(struct dvb_frontend *fe) |
04a45929 | 532 | { |
81931e94 | 533 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
04a45929 | 534 | struct nxt200x_state* state = fe->demodulator_priv; |
638a3fba | 535 | u8 buf[5]; |
04a45929 KL |
536 | |
537 | /* stop the micro first */ | |
538 | nxt200x_microcontroller_stop(state); | |
539 | ||
540 | if (state->demod_chip == NXT2004) { | |
541 | /* make sure demod is set to digital */ | |
542 | buf[0] = 0x04; | |
543 | nxt200x_writebytes(state, 0x14, buf, 1); | |
544 | buf[0] = 0x00; | |
545 | nxt200x_writebytes(state, 0x17, buf, 1); | |
546 | } | |
547 | ||
04a45929 | 548 | /* set additional params */ |
81931e94 | 549 | switch (p->modulation) { |
04a45929 KL |
550 | case QAM_64: |
551 | case QAM_256: | |
552 | /* Set punctured clock for QAM */ | |
553 | /* This is just a guess since I am unable to test it */ | |
c6dd2d5d MK |
554 | if (state->config->set_ts_params) |
555 | state->config->set_ts_params(fe, 1); | |
04a45929 KL |
556 | break; |
557 | case VSB_8: | |
558 | /* Set non-punctured clock for VSB */ | |
c6dd2d5d MK |
559 | if (state->config->set_ts_params) |
560 | state->config->set_ts_params(fe, 0); | |
04a45929 KL |
561 | break; |
562 | default: | |
563 | return -EINVAL; | |
564 | break; | |
565 | } | |
566 | ||
4abe9f9d MK |
567 | if (fe->ops.tuner_ops.calc_regs) { |
568 | /* get tuning information */ | |
249fa0b0 | 569 | fe->ops.tuner_ops.calc_regs(fe, buf, 5); |
4abe9f9d MK |
570 | |
571 | /* write frequency information */ | |
572 | nxt200x_writetuner(state, buf); | |
573 | } | |
04a45929 KL |
574 | |
575 | /* reset the agc now that tuning has been completed */ | |
576 | nxt200x_agc_reset(state); | |
577 | ||
578 | /* set target power level */ | |
81931e94 | 579 | switch (p->modulation) { |
04a45929 KL |
580 | case QAM_64: |
581 | case QAM_256: | |
582 | buf[0] = 0x74; | |
583 | break; | |
584 | case VSB_8: | |
585 | buf[0] = 0x70; | |
586 | break; | |
587 | default: | |
588 | return -EINVAL; | |
589 | break; | |
590 | } | |
591 | nxt200x_writebytes(state, 0x42, buf, 1); | |
592 | ||
593 | /* configure sdm */ | |
594 | switch (state->demod_chip) { | |
595 | case NXT2002: | |
596 | buf[0] = 0x87; | |
597 | break; | |
598 | case NXT2004: | |
599 | buf[0] = 0x07; | |
600 | break; | |
601 | default: | |
602 | return -EINVAL; | |
603 | break; | |
604 | } | |
605 | nxt200x_writebytes(state, 0x57, buf, 1); | |
606 | ||
607 | /* write sdm1 input */ | |
608 | buf[0] = 0x10; | |
609 | buf[1] = 0x00; | |
46365f3c MK |
610 | switch (state->demod_chip) { |
611 | case NXT2002: | |
612 | nxt200x_writereg_multibyte(state, 0x58, buf, 2); | |
613 | break; | |
614 | case NXT2004: | |
615 | nxt200x_writebytes(state, 0x58, buf, 2); | |
616 | break; | |
617 | default: | |
618 | return -EINVAL; | |
619 | break; | |
620 | } | |
04a45929 KL |
621 | |
622 | /* write sdmx input */ | |
81931e94 | 623 | switch (p->modulation) { |
04a45929 KL |
624 | case QAM_64: |
625 | buf[0] = 0x68; | |
626 | break; | |
627 | case QAM_256: | |
628 | buf[0] = 0x64; | |
629 | break; | |
630 | case VSB_8: | |
631 | buf[0] = 0x60; | |
632 | break; | |
633 | default: | |
634 | return -EINVAL; | |
635 | break; | |
636 | } | |
637 | buf[1] = 0x00; | |
46365f3c MK |
638 | switch (state->demod_chip) { |
639 | case NXT2002: | |
640 | nxt200x_writereg_multibyte(state, 0x5C, buf, 2); | |
641 | break; | |
642 | case NXT2004: | |
643 | nxt200x_writebytes(state, 0x5C, buf, 2); | |
644 | break; | |
645 | default: | |
646 | return -EINVAL; | |
647 | break; | |
648 | } | |
04a45929 KL |
649 | |
650 | /* write adc power lpf fc */ | |
651 | buf[0] = 0x05; | |
652 | nxt200x_writebytes(state, 0x43, buf, 1); | |
653 | ||
654 | if (state->demod_chip == NXT2004) { | |
655 | /* write ??? */ | |
656 | buf[0] = 0x00; | |
657 | buf[1] = 0x00; | |
658 | nxt200x_writebytes(state, 0x46, buf, 2); | |
659 | } | |
660 | ||
661 | /* write accumulator2 input */ | |
662 | buf[0] = 0x80; | |
663 | buf[1] = 0x00; | |
46365f3c MK |
664 | switch (state->demod_chip) { |
665 | case NXT2002: | |
666 | nxt200x_writereg_multibyte(state, 0x4B, buf, 2); | |
667 | break; | |
668 | case NXT2004: | |
669 | nxt200x_writebytes(state, 0x4B, buf, 2); | |
670 | break; | |
671 | default: | |
672 | return -EINVAL; | |
673 | break; | |
674 | } | |
04a45929 KL |
675 | |
676 | /* write kg1 */ | |
677 | buf[0] = 0x00; | |
678 | nxt200x_writebytes(state, 0x4D, buf, 1); | |
679 | ||
680 | /* write sdm12 lpf fc */ | |
681 | buf[0] = 0x44; | |
682 | nxt200x_writebytes(state, 0x55, buf, 1); | |
683 | ||
684 | /* write agc control reg */ | |
685 | buf[0] = 0x04; | |
686 | nxt200x_writebytes(state, 0x41, buf, 1); | |
687 | ||
688 | if (state->demod_chip == NXT2004) { | |
689 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
690 | buf[0] = 0x24; | |
691 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
692 | ||
693 | /* soft reset? */ | |
694 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
695 | buf[0] = 0x10; | |
696 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
697 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
698 | buf[0] = 0x00; | |
699 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
700 | ||
701 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
702 | buf[0] = 0x04; | |
703 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
704 | buf[0] = 0x00; | |
705 | nxt200x_writereg_multibyte(state, 0x81, buf, 1); | |
706 | buf[0] = 0x80; buf[1] = 0x00; buf[2] = 0x00; | |
707 | nxt200x_writereg_multibyte(state, 0x82, buf, 3); | |
708 | nxt200x_readreg_multibyte(state, 0x88, buf, 1); | |
709 | buf[0] = 0x11; | |
710 | nxt200x_writereg_multibyte(state, 0x88, buf, 1); | |
711 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
712 | buf[0] = 0x44; | |
713 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
714 | } | |
715 | ||
716 | /* write agc ucgp0 */ | |
81931e94 | 717 | switch (p->modulation) { |
04a45929 KL |
718 | case QAM_64: |
719 | buf[0] = 0x02; | |
720 | break; | |
721 | case QAM_256: | |
722 | buf[0] = 0x03; | |
723 | break; | |
724 | case VSB_8: | |
725 | buf[0] = 0x00; | |
726 | break; | |
727 | default: | |
728 | return -EINVAL; | |
729 | break; | |
730 | } | |
731 | nxt200x_writebytes(state, 0x30, buf, 1); | |
732 | ||
733 | /* write agc control reg */ | |
734 | buf[0] = 0x00; | |
735 | nxt200x_writebytes(state, 0x41, buf, 1); | |
736 | ||
737 | /* write accumulator2 input */ | |
738 | buf[0] = 0x80; | |
739 | buf[1] = 0x00; | |
46365f3c MK |
740 | switch (state->demod_chip) { |
741 | case NXT2002: | |
742 | nxt200x_writereg_multibyte(state, 0x49, buf, 2); | |
743 | nxt200x_writereg_multibyte(state, 0x4B, buf, 2); | |
744 | break; | |
745 | case NXT2004: | |
746 | nxt200x_writebytes(state, 0x49, buf, 2); | |
747 | nxt200x_writebytes(state, 0x4B, buf, 2); | |
748 | break; | |
749 | default: | |
750 | return -EINVAL; | |
751 | break; | |
752 | } | |
04a45929 KL |
753 | |
754 | /* write agc control reg */ | |
755 | buf[0] = 0x04; | |
756 | nxt200x_writebytes(state, 0x41, buf, 1); | |
757 | ||
758 | nxt200x_microcontroller_start(state); | |
759 | ||
760 | if (state->demod_chip == NXT2004) { | |
761 | nxt2004_microcontroller_init(state); | |
762 | ||
763 | /* ???? */ | |
764 | buf[0] = 0xF0; | |
765 | buf[1] = 0x00; | |
766 | nxt200x_writebytes(state, 0x5C, buf, 2); | |
767 | } | |
768 | ||
769 | /* adjacent channel detection should be done here, but I don't | |
770 | have any stations with this need so I cannot test it */ | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
775 | static int nxt200x_read_status(struct dvb_frontend* fe, fe_status_t* status) | |
776 | { | |
777 | struct nxt200x_state* state = fe->demodulator_priv; | |
778 | u8 lock; | |
779 | nxt200x_readbytes(state, 0x31, &lock, 1); | |
780 | ||
781 | *status = 0; | |
782 | if (lock & 0x20) { | |
783 | *status |= FE_HAS_SIGNAL; | |
784 | *status |= FE_HAS_CARRIER; | |
785 | *status |= FE_HAS_VITERBI; | |
786 | *status |= FE_HAS_SYNC; | |
787 | *status |= FE_HAS_LOCK; | |
788 | } | |
789 | return 0; | |
790 | } | |
791 | ||
792 | static int nxt200x_read_ber(struct dvb_frontend* fe, u32* ber) | |
793 | { | |
794 | struct nxt200x_state* state = fe->demodulator_priv; | |
795 | u8 b[3]; | |
796 | ||
797 | nxt200x_readreg_multibyte(state, 0xE6, b, 3); | |
798 | ||
799 | *ber = ((b[0] << 8) + b[1]) * 8; | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
804 | static int nxt200x_read_signal_strength(struct dvb_frontend* fe, u16* strength) | |
805 | { | |
806 | struct nxt200x_state* state = fe->demodulator_priv; | |
807 | u8 b[2]; | |
808 | u16 temp = 0; | |
809 | ||
810 | /* setup to read cluster variance */ | |
811 | b[0] = 0x00; | |
812 | nxt200x_writebytes(state, 0xA1, b, 1); | |
813 | ||
814 | /* get multreg val */ | |
815 | nxt200x_readreg_multibyte(state, 0xA6, b, 2); | |
816 | ||
817 | temp = (b[0] << 8) | b[1]; | |
818 | *strength = ((0x7FFF - temp) & 0x0FFF) * 16; | |
819 | ||
820 | return 0; | |
821 | } | |
822 | ||
823 | static int nxt200x_read_snr(struct dvb_frontend* fe, u16* snr) | |
824 | { | |
825 | ||
826 | struct nxt200x_state* state = fe->demodulator_priv; | |
827 | u8 b[2]; | |
828 | u16 temp = 0, temp2; | |
829 | u32 snrdb = 0; | |
830 | ||
831 | /* setup to read cluster variance */ | |
832 | b[0] = 0x00; | |
833 | nxt200x_writebytes(state, 0xA1, b, 1); | |
834 | ||
835 | /* get multreg val from 0xA6 */ | |
836 | nxt200x_readreg_multibyte(state, 0xA6, b, 2); | |
837 | ||
838 | temp = (b[0] << 8) | b[1]; | |
839 | temp2 = 0x7FFF - temp; | |
840 | ||
841 | /* snr will be in db */ | |
842 | if (temp2 > 0x7F00) | |
843 | snrdb = 1000*24 + ( 1000*(30-24) * ( temp2 - 0x7F00 ) / ( 0x7FFF - 0x7F00 ) ); | |
844 | else if (temp2 > 0x7EC0) | |
845 | snrdb = 1000*18 + ( 1000*(24-18) * ( temp2 - 0x7EC0 ) / ( 0x7F00 - 0x7EC0 ) ); | |
846 | else if (temp2 > 0x7C00) | |
847 | snrdb = 1000*12 + ( 1000*(18-12) * ( temp2 - 0x7C00 ) / ( 0x7EC0 - 0x7C00 ) ); | |
848 | else | |
849 | snrdb = 1000*0 + ( 1000*(12-0) * ( temp2 - 0 ) / ( 0x7C00 - 0 ) ); | |
850 | ||
851 | /* the value reported back from the frontend will be FFFF=32db 0000=0db */ | |
852 | *snr = snrdb * (0xFFFF/32000); | |
853 | ||
854 | return 0; | |
855 | } | |
856 | ||
857 | static int nxt200x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) | |
858 | { | |
859 | struct nxt200x_state* state = fe->demodulator_priv; | |
860 | u8 b[3]; | |
861 | ||
862 | nxt200x_readreg_multibyte(state, 0xE6, b, 3); | |
863 | *ucblocks = b[2]; | |
864 | ||
865 | return 0; | |
866 | } | |
867 | ||
868 | static int nxt200x_sleep(struct dvb_frontend* fe) | |
869 | { | |
870 | return 0; | |
871 | } | |
872 | ||
873 | static int nxt2002_init(struct dvb_frontend* fe) | |
874 | { | |
875 | struct nxt200x_state* state = fe->demodulator_priv; | |
876 | const struct firmware *fw; | |
877 | int ret; | |
878 | u8 buf[2]; | |
879 | ||
880 | /* request the firmware, this will block until someone uploads it */ | |
881 | printk("nxt2002: Waiting for firmware upload (%s)...\n", NXT2002_DEFAULT_FIRMWARE); | |
e9785250 JD |
882 | ret = request_firmware(&fw, NXT2002_DEFAULT_FIRMWARE, |
883 | state->i2c->dev.parent); | |
04a45929 KL |
884 | printk("nxt2002: Waiting for firmware upload(2)...\n"); |
885 | if (ret) { | |
886 | printk("nxt2002: No firmware uploaded (timeout or file not found?)\n"); | |
887 | return ret; | |
888 | } | |
889 | ||
890 | ret = nxt2002_load_firmware(fe, fw); | |
73ca66b9 | 891 | release_firmware(fw); |
04a45929 KL |
892 | if (ret) { |
893 | printk("nxt2002: Writing firmware to device failed\n"); | |
04a45929 KL |
894 | return ret; |
895 | } | |
896 | printk("nxt2002: Firmware upload complete\n"); | |
897 | ||
898 | /* Put the micro into reset */ | |
899 | nxt200x_microcontroller_stop(state); | |
900 | ||
901 | /* ensure transfer is complete */ | |
902 | buf[0]=0x00; | |
903 | nxt200x_writebytes(state, 0x2B, buf, 1); | |
904 | ||
905 | /* Put the micro into reset for real this time */ | |
906 | nxt200x_microcontroller_stop(state); | |
907 | ||
908 | /* soft reset everything (agc,frontend,eq,fec)*/ | |
909 | buf[0] = 0x0F; | |
910 | nxt200x_writebytes(state, 0x08, buf, 1); | |
911 | buf[0] = 0x00; | |
912 | nxt200x_writebytes(state, 0x08, buf, 1); | |
913 | ||
914 | /* write agc sdm configure */ | |
915 | buf[0] = 0xF1; | |
916 | nxt200x_writebytes(state, 0x57, buf, 1); | |
917 | ||
918 | /* write mod output format */ | |
919 | buf[0] = 0x20; | |
920 | nxt200x_writebytes(state, 0x09, buf, 1); | |
921 | ||
922 | /* write fec mpeg mode */ | |
923 | buf[0] = 0x7E; | |
924 | buf[1] = 0x00; | |
925 | nxt200x_writebytes(state, 0xE9, buf, 2); | |
926 | ||
927 | /* write mux selection */ | |
928 | buf[0] = 0x00; | |
929 | nxt200x_writebytes(state, 0xCC, buf, 1); | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
934 | static int nxt2004_init(struct dvb_frontend* fe) | |
935 | { | |
936 | struct nxt200x_state* state = fe->demodulator_priv; | |
937 | const struct firmware *fw; | |
938 | int ret; | |
939 | u8 buf[3]; | |
940 | ||
941 | /* ??? */ | |
942 | buf[0]=0x00; | |
943 | nxt200x_writebytes(state, 0x1E, buf, 1); | |
944 | ||
945 | /* request the firmware, this will block until someone uploads it */ | |
946 | printk("nxt2004: Waiting for firmware upload (%s)...\n", NXT2004_DEFAULT_FIRMWARE); | |
e9785250 JD |
947 | ret = request_firmware(&fw, NXT2004_DEFAULT_FIRMWARE, |
948 | state->i2c->dev.parent); | |
04a45929 KL |
949 | printk("nxt2004: Waiting for firmware upload(2)...\n"); |
950 | if (ret) { | |
951 | printk("nxt2004: No firmware uploaded (timeout or file not found?)\n"); | |
952 | return ret; | |
953 | } | |
954 | ||
955 | ret = nxt2004_load_firmware(fe, fw); | |
73ca66b9 | 956 | release_firmware(fw); |
04a45929 KL |
957 | if (ret) { |
958 | printk("nxt2004: Writing firmware to device failed\n"); | |
04a45929 KL |
959 | return ret; |
960 | } | |
961 | printk("nxt2004: Firmware upload complete\n"); | |
962 | ||
963 | /* ensure transfer is complete */ | |
964 | buf[0] = 0x01; | |
965 | nxt200x_writebytes(state, 0x19, buf, 1); | |
966 | ||
967 | nxt2004_microcontroller_init(state); | |
968 | nxt200x_microcontroller_stop(state); | |
969 | nxt200x_microcontroller_stop(state); | |
970 | nxt2004_microcontroller_init(state); | |
971 | nxt200x_microcontroller_stop(state); | |
972 | ||
973 | /* soft reset everything (agc,frontend,eq,fec)*/ | |
974 | buf[0] = 0xFF; | |
975 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
976 | buf[0] = 0x00; | |
977 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
978 | ||
979 | /* write agc sdm configure */ | |
980 | buf[0] = 0xD7; | |
981 | nxt200x_writebytes(state, 0x57, buf, 1); | |
982 | ||
983 | /* ???*/ | |
984 | buf[0] = 0x07; | |
985 | buf[1] = 0xfe; | |
986 | nxt200x_writebytes(state, 0x35, buf, 2); | |
987 | buf[0] = 0x12; | |
988 | nxt200x_writebytes(state, 0x34, buf, 1); | |
989 | buf[0] = 0x80; | |
990 | nxt200x_writebytes(state, 0x21, buf, 1); | |
991 | ||
992 | /* ???*/ | |
993 | buf[0] = 0x21; | |
994 | nxt200x_writebytes(state, 0x0A, buf, 1); | |
995 | ||
996 | /* ???*/ | |
997 | buf[0] = 0x01; | |
998 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
999 | ||
1000 | /* write fec mpeg mode */ | |
1001 | buf[0] = 0x7E; | |
1002 | buf[1] = 0x00; | |
1003 | nxt200x_writebytes(state, 0xE9, buf, 2); | |
1004 | ||
1005 | /* write mux selection */ | |
1006 | buf[0] = 0x00; | |
1007 | nxt200x_writebytes(state, 0xCC, buf, 1); | |
1008 | ||
1009 | /* ???*/ | |
1010 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1011 | buf[0] = 0x00; | |
1012 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1013 | ||
1014 | /* soft reset? */ | |
1015 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
1016 | buf[0] = 0x10; | |
1017 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
1018 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
1019 | buf[0] = 0x00; | |
1020 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
1021 | ||
1022 | /* ???*/ | |
1023 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1024 | buf[0] = 0x01; | |
1025 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1026 | buf[0] = 0x70; | |
1027 | nxt200x_writereg_multibyte(state, 0x81, buf, 1); | |
1028 | buf[0] = 0x31; buf[1] = 0x5E; buf[2] = 0x66; | |
1029 | nxt200x_writereg_multibyte(state, 0x82, buf, 3); | |
1030 | ||
1031 | nxt200x_readreg_multibyte(state, 0x88, buf, 1); | |
1032 | buf[0] = 0x11; | |
1033 | nxt200x_writereg_multibyte(state, 0x88, buf, 1); | |
1034 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1035 | buf[0] = 0x40; | |
1036 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1037 | ||
1038 | nxt200x_readbytes(state, 0x10, buf, 1); | |
1039 | buf[0] = 0x10; | |
1040 | nxt200x_writebytes(state, 0x10, buf, 1); | |
1041 | nxt200x_readbytes(state, 0x0A, buf, 1); | |
1042 | buf[0] = 0x21; | |
1043 | nxt200x_writebytes(state, 0x0A, buf, 1); | |
1044 | ||
1045 | nxt2004_microcontroller_init(state); | |
1046 | ||
1047 | buf[0] = 0x21; | |
1048 | nxt200x_writebytes(state, 0x0A, buf, 1); | |
1049 | buf[0] = 0x7E; | |
1050 | nxt200x_writebytes(state, 0xE9, buf, 1); | |
1051 | buf[0] = 0x00; | |
1052 | nxt200x_writebytes(state, 0xEA, buf, 1); | |
1053 | ||
1054 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1055 | buf[0] = 0x00; | |
1056 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1057 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1058 | buf[0] = 0x00; | |
1059 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1060 | ||
1061 | /* soft reset? */ | |
1062 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
1063 | buf[0] = 0x10; | |
1064 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
1065 | nxt200x_readreg_multibyte(state, 0x08, buf, 1); | |
1066 | buf[0] = 0x00; | |
1067 | nxt200x_writereg_multibyte(state, 0x08, buf, 1); | |
1068 | ||
1069 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1070 | buf[0] = 0x04; | |
1071 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1072 | buf[0] = 0x00; | |
1073 | nxt200x_writereg_multibyte(state, 0x81, buf, 1); | |
1074 | buf[0] = 0x80; buf[1] = 0x00; buf[2] = 0x00; | |
1075 | nxt200x_writereg_multibyte(state, 0x82, buf, 3); | |
1076 | ||
1077 | nxt200x_readreg_multibyte(state, 0x88, buf, 1); | |
1078 | buf[0] = 0x11; | |
1079 | nxt200x_writereg_multibyte(state, 0x88, buf, 1); | |
1080 | ||
1081 | nxt200x_readreg_multibyte(state, 0x80, buf, 1); | |
1082 | buf[0] = 0x44; | |
1083 | nxt200x_writereg_multibyte(state, 0x80, buf, 1); | |
1084 | ||
1085 | /* initialize tuner */ | |
1086 | nxt200x_readbytes(state, 0x10, buf, 1); | |
1087 | buf[0] = 0x12; | |
1088 | nxt200x_writebytes(state, 0x10, buf, 1); | |
1089 | buf[0] = 0x04; | |
1090 | nxt200x_writebytes(state, 0x13, buf, 1); | |
1091 | buf[0] = 0x00; | |
1092 | nxt200x_writebytes(state, 0x16, buf, 1); | |
1093 | buf[0] = 0x04; | |
1094 | nxt200x_writebytes(state, 0x14, buf, 1); | |
1095 | buf[0] = 0x00; | |
1096 | nxt200x_writebytes(state, 0x14, buf, 1); | |
1097 | nxt200x_writebytes(state, 0x17, buf, 1); | |
1098 | nxt200x_writebytes(state, 0x14, buf, 1); | |
1099 | nxt200x_writebytes(state, 0x17, buf, 1); | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static int nxt200x_init(struct dvb_frontend* fe) | |
1105 | { | |
1106 | struct nxt200x_state* state = fe->demodulator_priv; | |
1107 | int ret = 0; | |
1108 | ||
1109 | if (!state->initialised) { | |
1110 | switch (state->demod_chip) { | |
1111 | case NXT2002: | |
1112 | ret = nxt2002_init(fe); | |
1113 | break; | |
1114 | case NXT2004: | |
1115 | ret = nxt2004_init(fe); | |
1116 | break; | |
1117 | default: | |
1118 | return -EINVAL; | |
1119 | break; | |
1120 | } | |
1121 | state->initialised = 1; | |
1122 | } | |
1123 | return ret; | |
1124 | } | |
1125 | ||
1126 | static int nxt200x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) | |
1127 | { | |
1128 | fesettings->min_delay_ms = 500; | |
1129 | fesettings->step_size = 0; | |
1130 | fesettings->max_drift = 0; | |
1131 | return 0; | |
1132 | } | |
1133 | ||
1134 | static void nxt200x_release(struct dvb_frontend* fe) | |
1135 | { | |
1136 | struct nxt200x_state* state = fe->demodulator_priv; | |
1137 | kfree(state); | |
1138 | } | |
1139 | ||
1140 | static struct dvb_frontend_ops nxt200x_ops; | |
1141 | ||
1142 | struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config, | |
1143 | struct i2c_adapter* i2c) | |
1144 | { | |
1145 | struct nxt200x_state* state = NULL; | |
1146 | u8 buf [] = {0,0,0,0,0}; | |
1147 | ||
1148 | /* allocate memory for the internal state */ | |
7408187d | 1149 | state = kzalloc(sizeof(struct nxt200x_state), GFP_KERNEL); |
04a45929 KL |
1150 | if (state == NULL) |
1151 | goto error; | |
04a45929 KL |
1152 | |
1153 | /* setup the state */ | |
1154 | state->config = config; | |
1155 | state->i2c = i2c; | |
04a45929 KL |
1156 | state->initialised = 0; |
1157 | ||
1158 | /* read card id */ | |
1159 | nxt200x_readbytes(state, 0x00, buf, 5); | |
1160 | dprintk("NXT info: %02X %02X %02X %02X %02X\n", | |
1161 | buf[0], buf[1], buf[2], buf[3], buf[4]); | |
1162 | ||
1163 | /* set demod chip */ | |
1164 | switch (buf[0]) { | |
1165 | case 0x04: | |
1166 | state->demod_chip = NXT2002; | |
1167 | printk("nxt200x: NXT2002 Detected\n"); | |
1168 | break; | |
1169 | case 0x05: | |
1170 | state->demod_chip = NXT2004; | |
1171 | printk("nxt200x: NXT2004 Detected\n"); | |
1172 | break; | |
1173 | default: | |
1174 | goto error; | |
1175 | } | |
1176 | ||
1177 | /* make sure demod chip is supported */ | |
1178 | switch (state->demod_chip) { | |
1179 | case NXT2002: | |
1180 | if (buf[0] != 0x04) goto error; /* device id */ | |
1181 | if (buf[1] != 0x02) goto error; /* fab id */ | |
1182 | if (buf[2] != 0x11) goto error; /* month */ | |
1183 | if (buf[3] != 0x20) goto error; /* year msb */ | |
1184 | if (buf[4] != 0x00) goto error; /* year lsb */ | |
1185 | break; | |
1186 | case NXT2004: | |
1187 | if (buf[0] != 0x05) goto error; /* device id */ | |
1188 | break; | |
1189 | default: | |
1190 | goto error; | |
1191 | } | |
1192 | ||
1193 | /* create dvb_frontend */ | |
dea74869 | 1194 | memcpy(&state->frontend.ops, &nxt200x_ops, sizeof(struct dvb_frontend_ops)); |
04a45929 KL |
1195 | state->frontend.demodulator_priv = state; |
1196 | return &state->frontend; | |
1197 | ||
1198 | error: | |
6d35ae3d | 1199 | kfree(state); |
04a45929 KL |
1200 | printk("Unknown/Unsupported NXT chip: %02X %02X %02X %02X %02X\n", |
1201 | buf[0], buf[1], buf[2], buf[3], buf[4]); | |
1202 | return NULL; | |
1203 | } | |
1204 | ||
1205 | static struct dvb_frontend_ops nxt200x_ops = { | |
81931e94 | 1206 | .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, |
04a45929 KL |
1207 | .info = { |
1208 | .name = "Nextwave NXT200X VSB/QAM frontend", | |
04a45929 KL |
1209 | .frequency_min = 54000000, |
1210 | .frequency_max = 860000000, | |
1211 | .frequency_stepsize = 166666, /* stepsize is just a guess */ | |
1212 | .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
1213 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
1214 | FE_CAN_8VSB | FE_CAN_QAM_64 | FE_CAN_QAM_256 | |
1215 | }, | |
1216 | ||
1217 | .release = nxt200x_release, | |
1218 | ||
1219 | .init = nxt200x_init, | |
1220 | .sleep = nxt200x_sleep, | |
1221 | ||
81931e94 | 1222 | .set_frontend = nxt200x_setup_frontend_parameters, |
04a45929 KL |
1223 | .get_tune_settings = nxt200x_get_tune_settings, |
1224 | ||
1225 | .read_status = nxt200x_read_status, | |
1226 | .read_ber = nxt200x_read_ber, | |
1227 | .read_signal_strength = nxt200x_read_signal_strength, | |
1228 | .read_snr = nxt200x_read_snr, | |
1229 | .read_ucblocks = nxt200x_read_ucblocks, | |
1230 | }; | |
1231 | ||
1232 | module_param(debug, int, 0644); | |
1233 | MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); | |
1234 | ||
1235 | MODULE_DESCRIPTION("NXT200X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver"); | |
46365f3c | 1236 | MODULE_AUTHOR("Kirk Lapray, Michael Krufky, Jean-Francois Thibert, and Taylor Jacob"); |
04a45929 KL |
1237 | MODULE_LICENSE("GPL"); |
1238 | ||
1239 | EXPORT_SYMBOL(nxt200x_attach); | |
1240 |