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Merge tag 'pm+acpi-3.11-rc1-more' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-artful-kernel.git] / drivers / media / dvb-frontends / stb0899_drv.c
1 /*
2 STB0899 Multistandard Frontend driver
3 Copyright (C) Manu Abraham (abraham.manu@gmail.com)
4
5 Copyright (C) ST Microelectronics
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/slab.h>
26 #include <linux/string.h>
27
28 #include <linux/dvb/frontend.h>
29 #include "dvb_frontend.h"
30
31 #include "stb0899_drv.h"
32 #include "stb0899_priv.h"
33 #include "stb0899_reg.h"
34
35 static unsigned int verbose = 0;//1;
36 module_param(verbose, int, 0644);
37
38 /* C/N in dB/10, NIRM/NIRL */
39 static const struct stb0899_tab stb0899_cn_tab[] = {
40 { 200, 2600 },
41 { 190, 2700 },
42 { 180, 2860 },
43 { 170, 3020 },
44 { 160, 3210 },
45 { 150, 3440 },
46 { 140, 3710 },
47 { 130, 4010 },
48 { 120, 4360 },
49 { 110, 4740 },
50 { 100, 5190 },
51 { 90, 5670 },
52 { 80, 6200 },
53 { 70, 6770 },
54 { 60, 7360 },
55 { 50, 7970 },
56 { 40, 8250 },
57 { 30, 9000 },
58 { 20, 9450 },
59 { 15, 9600 },
60 };
61
62 /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
63 * As measured, connected to a modulator.
64 * -8.0 to -50.0 dBm directly connected,
65 * -52.0 to -74.8 with extra attenuation.
66 * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
67 * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
68 */
69 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
70 { -750, -128 },
71 { -748, -94 },
72 { -745, -92 },
73 { -735, -90 },
74 { -720, -87 },
75 { -670, -77 },
76 { -640, -70 },
77 { -610, -62 },
78 { -600, -60 },
79 { -590, -56 },
80 { -560, -41 },
81 { -540, -25 },
82 { -530, -17 },
83 { -520, -11 },
84 { -500, 1 },
85 { -490, 6 },
86 { -480, 10 },
87 { -440, 22 },
88 { -420, 27 },
89 { -400, 31 },
90 { -380, 34 },
91 { -340, 40 },
92 { -320, 43 },
93 { -280, 48 },
94 { -250, 52 },
95 { -230, 55 },
96 { -180, 61 },
97 { -140, 66 },
98 { -90, 73 },
99 { -80, 74 },
100 { 500, 127 }
101 };
102
103 /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
104 * As measured, connected to a modulator.
105 * -8.0 to -50.1 dBm directly connected,
106 * -53.0 to -76.6 with extra attenuation.
107 * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
108 * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
109 */
110 static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
111 { 700, 0 },
112 { -80, 3217 },
113 { -150, 3893 },
114 { -190, 4217 },
115 { -240, 4621 },
116 { -280, 4945 },
117 { -320, 5273 },
118 { -350, 5545 },
119 { -370, 5741 },
120 { -410, 6147 },
121 { -450, 6671 },
122 { -490, 7413 },
123 { -501, 7665 },
124 { -530, 8767 },
125 { -560, 10219 },
126 { -580, 10939 },
127 { -590, 11518 },
128 { -600, 11723 },
129 { -650, 12659 },
130 { -690, 13219 },
131 { -730, 13645 },
132 { -750, 13909 },
133 { -766, 14153 },
134 { -950, 16383 }
135 };
136
137 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
138 static struct stb0899_tab stb0899_quant_tab[] = {
139 { 0, 0 },
140 { 0, 100 },
141 { 600, 200 },
142 { 950, 299 },
143 { 1200, 398 },
144 { 1400, 501 },
145 { 1560, 603 },
146 { 1690, 700 },
147 { 1810, 804 },
148 { 1910, 902 },
149 { 2000, 1000 },
150 { 2080, 1096 },
151 { 2160, 1202 },
152 { 2230, 1303 },
153 { 2350, 1496 },
154 { 2410, 1603 },
155 { 2460, 1698 },
156 { 2510, 1799 },
157 { 2600, 1995 },
158 { 2650, 2113 },
159 { 2690, 2213 },
160 { 2720, 2291 },
161 { 2760, 2399 },
162 { 2800, 2512 },
163 { 2860, 2692 },
164 { 2930, 2917 },
165 { 2960, 3020 },
166 { 3010, 3199 },
167 { 3040, 3311 },
168 { 3060, 3388 },
169 { 3120, 3631 },
170 { 3190, 3936 },
171 { 3400, 5012 },
172 { 3610, 6383 },
173 { 3800, 7943 },
174 { 4210, 12735 },
175 { 4500, 17783 },
176 { 4690, 22131 },
177 { 4810, 25410 }
178 };
179
180 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
181 static struct stb0899_tab stb0899_est_tab[] = {
182 { 0, 0 },
183 { 0, 1 },
184 { 301, 2 },
185 { 1204, 16 },
186 { 1806, 64 },
187 { 2408, 256 },
188 { 2709, 512 },
189 { 3010, 1023 },
190 { 3311, 2046 },
191 { 3612, 4093 },
192 { 3823, 6653 },
193 { 3913, 8185 },
194 { 4010, 10233 },
195 { 4107, 12794 },
196 { 4214, 16368 },
197 { 4266, 18450 },
198 { 4311, 20464 },
199 { 4353, 22542 },
200 { 4391, 24604 },
201 { 4425, 26607 },
202 { 4457, 28642 },
203 { 4487, 30690 },
204 { 4515, 32734 },
205 { 4612, 40926 },
206 { 4692, 49204 },
207 { 4816, 65464 },
208 { 4913, 81846 },
209 { 4993, 98401 },
210 { 5060, 114815 },
211 { 5118, 131220 },
212 { 5200, 158489 },
213 { 5300, 199526 },
214 { 5400, 251189 },
215 { 5500, 316228 },
216 { 5600, 398107 },
217 { 5720, 524807 },
218 { 5721, 526017 },
219 };
220
221 static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
222 {
223 int ret;
224
225 u8 b0[] = { reg >> 8, reg & 0xff };
226 u8 buf;
227
228 struct i2c_msg msg[] = {
229 {
230 .addr = state->config->demod_address,
231 .flags = 0,
232 .buf = b0,
233 .len = 2
234 },{
235 .addr = state->config->demod_address,
236 .flags = I2C_M_RD,
237 .buf = &buf,
238 .len = 1
239 }
240 };
241
242 ret = i2c_transfer(state->i2c, msg, 2);
243 if (ret != 2) {
244 if (ret != -ERESTARTSYS)
245 dprintk(state->verbose, FE_ERROR, 1,
246 "Read error, Reg=[0x%02x], Status=%d",
247 reg, ret);
248
249 return ret < 0 ? ret : -EREMOTEIO;
250 }
251 if (unlikely(*state->verbose >= FE_DEBUGREG))
252 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
253 reg, buf);
254
255 return (unsigned int)buf;
256 }
257
258 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
259 {
260 int result;
261
262 result = _stb0899_read_reg(state, reg);
263 /*
264 * Bug ID 9:
265 * access to 0xf2xx/0xf6xx
266 * must be followed by read from 0xf2ff/0xf6ff.
267 */
268 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
269 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
270 _stb0899_read_reg(state, (reg | 0x00ff));
271
272 return result;
273 }
274
275 u32 _stb0899_read_s2reg(struct stb0899_state *state,
276 u32 stb0899_i2cdev,
277 u32 stb0899_base_addr,
278 u16 stb0899_reg_offset)
279 {
280 int status;
281 u32 data;
282 u8 buf[7] = { 0 };
283 u16 tmpaddr;
284
285 u8 buf_0[] = {
286 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
287 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
288 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
289 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
290 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
291 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
292 };
293 u8 buf_1[] = {
294 0x00, /* 0xf3 Reg Offset */
295 0x00, /* 0x44 Reg Offset */
296 };
297
298 struct i2c_msg msg_0 = {
299 .addr = state->config->demod_address,
300 .flags = 0,
301 .buf = buf_0,
302 .len = 6
303 };
304
305 struct i2c_msg msg_1 = {
306 .addr = state->config->demod_address,
307 .flags = 0,
308 .buf = buf_1,
309 .len = 2
310 };
311
312 struct i2c_msg msg_r = {
313 .addr = state->config->demod_address,
314 .flags = I2C_M_RD,
315 .buf = buf,
316 .len = 4
317 };
318
319 tmpaddr = stb0899_reg_offset & 0xff00;
320 if (!(stb0899_reg_offset & 0x8))
321 tmpaddr = stb0899_reg_offset | 0x20;
322
323 buf_1[0] = GETBYTE(tmpaddr, BYTE1);
324 buf_1[1] = GETBYTE(tmpaddr, BYTE0);
325
326 status = i2c_transfer(state->i2c, &msg_0, 1);
327 if (status < 1) {
328 if (status != -ERESTARTSYS)
329 printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
330 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
331
332 goto err;
333 }
334
335 /* Dummy */
336 status = i2c_transfer(state->i2c, &msg_1, 1);
337 if (status < 1)
338 goto err;
339
340 status = i2c_transfer(state->i2c, &msg_r, 1);
341 if (status < 1)
342 goto err;
343
344 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
345 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
346
347 /* Actual */
348 status = i2c_transfer(state->i2c, &msg_1, 1);
349 if (status < 1) {
350 if (status != -ERESTARTSYS)
351 printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
352 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
353 goto err;
354 }
355
356 status = i2c_transfer(state->i2c, &msg_r, 1);
357 if (status < 1) {
358 if (status != -ERESTARTSYS)
359 printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
360 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
361 return status < 0 ? status : -EREMOTEIO;
362 }
363
364 data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
365 if (unlikely(*state->verbose >= FE_DEBUGREG))
366 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
367 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
368
369 return data;
370
371 err:
372 return status < 0 ? status : -EREMOTEIO;
373 }
374
375 int stb0899_write_s2reg(struct stb0899_state *state,
376 u32 stb0899_i2cdev,
377 u32 stb0899_base_addr,
378 u16 stb0899_reg_offset,
379 u32 stb0899_data)
380 {
381 int status;
382
383 /* Base Address Setup */
384 u8 buf_0[] = {
385 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
386 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
387 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
388 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
389 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
390 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
391 };
392 u8 buf_1[] = {
393 0x00, /* 0xf3 Reg Offset */
394 0x00, /* 0x44 Reg Offset */
395 0x00, /* data */
396 0x00, /* data */
397 0x00, /* data */
398 0x00, /* data */
399 };
400
401 struct i2c_msg msg_0 = {
402 .addr = state->config->demod_address,
403 .flags = 0,
404 .buf = buf_0,
405 .len = 6
406 };
407
408 struct i2c_msg msg_1 = {
409 .addr = state->config->demod_address,
410 .flags = 0,
411 .buf = buf_1,
412 .len = 6
413 };
414
415 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
416 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
417 buf_1[2] = GETBYTE(stb0899_data, BYTE0);
418 buf_1[3] = GETBYTE(stb0899_data, BYTE1);
419 buf_1[4] = GETBYTE(stb0899_data, BYTE2);
420 buf_1[5] = GETBYTE(stb0899_data, BYTE3);
421
422 if (unlikely(*state->verbose >= FE_DEBUGREG))
423 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
424 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
425
426 status = i2c_transfer(state->i2c, &msg_0, 1);
427 if (unlikely(status < 1)) {
428 if (status != -ERESTARTSYS)
429 printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
430 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
431 goto err;
432 }
433 status = i2c_transfer(state->i2c, &msg_1, 1);
434 if (unlikely(status < 1)) {
435 if (status != -ERESTARTSYS)
436 printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
437 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
438
439 return status < 0 ? status : -EREMOTEIO;
440 }
441
442 return 0;
443
444 err:
445 return status < 0 ? status : -EREMOTEIO;
446 }
447
448 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count)
449 {
450 int status;
451
452 u8 b0[] = { reg >> 8, reg & 0xff };
453
454 struct i2c_msg msg[] = {
455 {
456 .addr = state->config->demod_address,
457 .flags = 0,
458 .buf = b0,
459 .len = 2
460 },{
461 .addr = state->config->demod_address,
462 .flags = I2C_M_RD,
463 .buf = buf,
464 .len = count
465 }
466 };
467
468 status = i2c_transfer(state->i2c, msg, 2);
469 if (status != 2) {
470 if (status != -ERESTARTSYS)
471 printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
472 __func__, reg, count, status);
473 goto err;
474 }
475 /*
476 * Bug ID 9:
477 * access to 0xf2xx/0xf6xx
478 * must be followed by read from 0xf2ff/0xf6ff.
479 */
480 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
481 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
482 _stb0899_read_reg(state, (reg | 0x00ff));
483
484 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
485 int i;
486
487 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
488 for (i = 0; i < count; i++) {
489 printk(" %02x", buf[i]);
490 }
491 printk("\n");
492 }
493
494 return 0;
495 err:
496 return status < 0 ? status : -EREMOTEIO;
497 }
498
499 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
500 {
501 int ret;
502 u8 buf[2 + count];
503 struct i2c_msg i2c_msg = {
504 .addr = state->config->demod_address,
505 .flags = 0,
506 .buf = buf,
507 .len = 2 + count
508 };
509
510 buf[0] = reg >> 8;
511 buf[1] = reg & 0xff;
512 memcpy(&buf[2], data, count);
513
514 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
515 int i;
516
517 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
518 for (i = 0; i < count; i++)
519 printk(" %02x", data[i]);
520 printk("\n");
521 }
522 ret = i2c_transfer(state->i2c, &i2c_msg, 1);
523
524 /*
525 * Bug ID 9:
526 * access to 0xf2xx/0xf6xx
527 * must be followed by read from 0xf2ff/0xf6ff.
528 */
529 if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
530 stb0899_read_reg(state, (reg | 0x00ff));
531
532 if (ret != 1) {
533 if (ret != -ERESTARTSYS)
534 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
535 reg, data[0], count, ret);
536 return ret < 0 ? ret : -EREMOTEIO;
537 }
538
539 return 0;
540 }
541
542 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
543 {
544 return stb0899_write_regs(state, reg, &data, 1);
545 }
546
547 /*
548 * stb0899_get_mclk
549 * Get STB0899 master clock frequency
550 * ExtClk: external clock frequency (Hz)
551 */
552 static u32 stb0899_get_mclk(struct stb0899_state *state)
553 {
554 u32 mclk = 0, div = 0;
555
556 div = stb0899_read_reg(state, STB0899_NCOARSE);
557 mclk = (div + 1) * state->config->xtal_freq / 6;
558 dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
559
560 return mclk;
561 }
562
563 /*
564 * stb0899_set_mclk
565 * Set STB0899 master Clock frequency
566 * Mclk: demodulator master clock
567 * ExtClk: external clock frequency (Hz)
568 */
569 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
570 {
571 struct stb0899_internal *internal = &state->internal;
572 u8 mdiv = 0;
573
574 dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config);
575 mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
576 dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
577
578 stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
579 internal->master_clk = stb0899_get_mclk(state);
580
581 dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
582 }
583
584 static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
585 {
586 struct stb0899_config *config = state->config;
587 const struct stb0899_postproc *postproc = config->postproc;
588
589 /* post process event */
590 if (postproc) {
591 if (enable) {
592 if (postproc[ctl].level == STB0899_GPIOPULLUP)
593 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
594 else
595 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
596 } else {
597 if (postproc[ctl].level == STB0899_GPIOPULLUP)
598 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
599 else
600 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
601 }
602 }
603 return 0;
604 }
605
606 static void stb0899_release(struct dvb_frontend *fe)
607 {
608 struct stb0899_state *state = fe->demodulator_priv;
609
610 dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend");
611 /* post process event */
612 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
613 kfree(state);
614 }
615
616 /*
617 * stb0899_get_alpha
618 * return: rolloff
619 */
620 static int stb0899_get_alpha(struct stb0899_state *state)
621 {
622 u8 mode_coeff;
623
624 mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
625
626 if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
627 return 20;
628 else
629 return 35;
630 }
631
632 /*
633 * stb0899_init_calc
634 */
635 static void stb0899_init_calc(struct stb0899_state *state)
636 {
637 struct stb0899_internal *internal = &state->internal;
638 int master_clk;
639 u8 agc[2];
640 u32 reg;
641
642 /* Read registers (in burst mode) */
643 stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
644
645 /* Initial calculations */
646 master_clk = stb0899_get_mclk(state);
647 internal->t_agc1 = 0;
648 internal->t_agc2 = 0;
649 internal->master_clk = master_clk;
650 internal->mclk = master_clk / 65536L;
651 internal->rolloff = stb0899_get_alpha(state);
652
653 /* DVBS2 Initial calculations */
654 /* Set AGC value to the middle */
655 internal->agc_gain = 8154;
656 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
657 STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
658 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
659
660 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
661 internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
662
663 internal->center_freq = 0;
664 internal->av_frame_coarse = 10;
665 internal->av_frame_fine = 20;
666 internal->step_size = 2;
667 /*
668 if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
669 pParams->IQLocked = 0;
670 else
671 pParams->IQLocked = 1;
672 */
673 }
674
675 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
676 {
677 u8 reg = 0;
678 unsigned long start = jiffies;
679
680 while (1) {
681 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
682 if (!STB0899_GETFIELD(FIFOFULL, reg))
683 break;
684 if ((jiffies - start) > timeout) {
685 dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
686 return -ETIMEDOUT;
687 }
688 }
689
690 return 0;
691 }
692
693 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
694 {
695 struct stb0899_state *state = fe->demodulator_priv;
696 u8 reg, i;
697
698 if (cmd->msg_len > 8)
699 return -EINVAL;
700
701 /* enable FIFO precharge */
702 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
703 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
704 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
705 for (i = 0; i < cmd->msg_len; i++) {
706 /* wait for FIFO empty */
707 if (stb0899_wait_diseqc_fifo_empty(state, 100) < 0)
708 return -ETIMEDOUT;
709
710 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
711 }
712 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
713 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
714 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
715 msleep(100);
716 return 0;
717 }
718
719 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
720 {
721 u8 reg = 0;
722 unsigned long start = jiffies;
723
724 while (!STB0899_GETFIELD(RXEND, reg)) {
725 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
726 if (jiffies - start > timeout) {
727 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
728 return -ETIMEDOUT;
729 }
730 msleep(10);
731 }
732
733 return 0;
734 }
735
736 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
737 {
738 struct stb0899_state *state = fe->demodulator_priv;
739 u8 reg, length = 0, i;
740 int result;
741
742 if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
743 return -ETIMEDOUT;
744
745 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
746 if (STB0899_GETFIELD(RXEND, reg)) {
747
748 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
749 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
750
751 if (length > sizeof (reply->msg)) {
752 result = -EOVERFLOW;
753 goto exit;
754 }
755 reply->msg_len = length;
756
757 /* extract data */
758 for (i = 0; i < length; i++)
759 reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
760 }
761
762 return 0;
763 exit:
764
765 return result;
766 }
767
768 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
769 {
770 u8 reg = 0;
771 unsigned long start = jiffies;
772
773 while (!STB0899_GETFIELD(TXIDLE, reg)) {
774 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
775 if (jiffies - start > timeout) {
776 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
777 return -ETIMEDOUT;
778 }
779 msleep(10);
780 }
781 return 0;
782 }
783
784 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
785 {
786 struct stb0899_state *state = fe->demodulator_priv;
787 u8 reg, old_state;
788
789 /* wait for diseqc idle */
790 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
791 return -ETIMEDOUT;
792
793 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
794 old_state = reg;
795 /* set to burst mode */
796 STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03);
797 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
798 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
799 switch (burst) {
800 case SEC_MINI_A:
801 /* unmodulated */
802 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
803 break;
804 case SEC_MINI_B:
805 /* modulated */
806 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
807 break;
808 }
809 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
810 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
811 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
812 /* wait for diseqc idle */
813 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
814 return -ETIMEDOUT;
815
816 /* restore state */
817 stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
818
819 return 0;
820 }
821
822 static int stb0899_diseqc_init(struct stb0899_state *state)
823 {
824 /*
825 struct dvb_diseqc_slave_reply rx_data;
826 */
827 u8 f22_tx, reg;
828
829 u32 mclk, tx_freq = 22000;/* count = 0, i; */
830 reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
831 STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
832 stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
833
834 /* disable Tx spy */
835 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
836 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
837 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
838
839 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
840 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
841 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
842
843 mclk = stb0899_get_mclk(state);
844 f22_tx = mclk / (tx_freq * 32);
845 stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
846 state->rx_freq = 20000;
847
848 return 0;
849 }
850
851 static int stb0899_sleep(struct dvb_frontend *fe)
852 {
853 struct stb0899_state *state = fe->demodulator_priv;
854 /*
855 u8 reg;
856 */
857 dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
858 /* post process event */
859 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
860
861 return 0;
862 }
863
864 static int stb0899_wakeup(struct dvb_frontend *fe)
865 {
866 int rc;
867 struct stb0899_state *state = fe->demodulator_priv;
868
869 if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
870 return rc;
871 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
872 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
873 return rc;
874 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
875 return rc;
876
877 /* post process event */
878 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
879
880 return 0;
881 }
882
883 static int stb0899_init(struct dvb_frontend *fe)
884 {
885 int i;
886 struct stb0899_state *state = fe->demodulator_priv;
887 struct stb0899_config *config = state->config;
888
889 dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
890
891 /* init device */
892 dprintk(state->verbose, FE_DEBUG, 1, "init device");
893 for (i = 0; config->init_dev[i].address != 0xffff; i++)
894 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
895
896 dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod");
897 /* init S2 demod */
898 for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
899 stb0899_write_s2reg(state, STB0899_S2DEMOD,
900 config->init_s2_demod[i].base_address,
901 config->init_s2_demod[i].offset,
902 config->init_s2_demod[i].data);
903
904 dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod");
905 /* init S1 demod */
906 for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
907 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
908
909 dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC");
910 /* init S2 fec */
911 for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
912 stb0899_write_s2reg(state, STB0899_S2FEC,
913 config->init_s2_fec[i].base_address,
914 config->init_s2_fec[i].offset,
915 config->init_s2_fec[i].data);
916
917 dprintk(state->verbose, FE_DEBUG, 1, "init TST");
918 /* init test */
919 for (i = 0; config->init_tst[i].address != 0xffff; i++)
920 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
921
922 stb0899_init_calc(state);
923 stb0899_diseqc_init(state);
924
925 return 0;
926 }
927
928 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
929 {
930 int res = 0;
931 int min = 0, med;
932
933 if (val < tab[min].read)
934 res = tab[min].real;
935 else if (val >= tab[max].read)
936 res = tab[max].real;
937 else {
938 while ((max - min) > 1) {
939 med = (max + min) / 2;
940 if (val >= tab[min].read && val < tab[med].read)
941 max = med;
942 else
943 min = med;
944 }
945 res = ((val - tab[min].read) *
946 (tab[max].real - tab[min].real) /
947 (tab[max].read - tab[min].read)) +
948 tab[min].real;
949 }
950
951 return res;
952 }
953
954 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
955 {
956 struct stb0899_state *state = fe->demodulator_priv;
957 struct stb0899_internal *internal = &state->internal;
958
959 int val;
960 u32 reg;
961 *strength = 0;
962 switch (state->delsys) {
963 case SYS_DVBS:
964 case SYS_DSS:
965 if (internal->lock) {
966 reg = stb0899_read_reg(state, STB0899_VSTATUS);
967 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
968
969 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
970 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
971
972 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
973 *strength += 750;
974 dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
975 val & 0xff, *strength);
976 }
977 }
978 break;
979 case SYS_DVBS2:
980 if (internal->lock) {
981 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN);
982 val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
983
984 *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
985 *strength += 950;
986 dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
987 val & 0x3fff, *strength);
988 }
989 break;
990 default:
991 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
992 return -EINVAL;
993 }
994
995 return 0;
996 }
997
998 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
999 {
1000 struct stb0899_state *state = fe->demodulator_priv;
1001 struct stb0899_internal *internal = &state->internal;
1002
1003 unsigned int val, quant, quantn = -1, est, estn = -1;
1004 u8 buf[2];
1005 u32 reg;
1006
1007 *snr = 0;
1008 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1009 switch (state->delsys) {
1010 case SYS_DVBS:
1011 case SYS_DSS:
1012 if (internal->lock) {
1013 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1014
1015 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
1016 val = MAKEWORD16(buf[0], buf[1]);
1017
1018 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
1019 dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
1020 buf[0], buf[1], val, *snr);
1021 }
1022 }
1023 break;
1024 case SYS_DVBS2:
1025 if (internal->lock) {
1026 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1027 quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1028 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1029 est = STB0899_GETFIELD(ESN0_EST, reg);
1030 if (est == 1)
1031 val = 301; /* C/N = 30.1 dB */
1032 else if (est == 2)
1033 val = 270; /* C/N = 27.0 dB */
1034 else {
1035 /* quantn = 100 * log(quant^2) */
1036 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1037 /* estn = 100 * log(est) */
1038 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1039 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1040 val = (quantn - estn) / 10;
1041 }
1042 *snr = val;
1043 dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1044 quant, quantn, est, estn, val);
1045 }
1046 break;
1047 default:
1048 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1049 return -EINVAL;
1050 }
1051
1052 return 0;
1053 }
1054
1055 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1056 {
1057 struct stb0899_state *state = fe->demodulator_priv;
1058 struct stb0899_internal *internal = &state->internal;
1059 u8 reg;
1060 *status = 0;
1061
1062 switch (state->delsys) {
1063 case SYS_DVBS:
1064 case SYS_DSS:
1065 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1066 if (internal->lock) {
1067 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1068 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1069 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1070 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
1071
1072 reg = stb0899_read_reg(state, STB0899_PLPARM);
1073 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1074 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1075 *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1076 /* post process event */
1077 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1078 }
1079 }
1080 }
1081 break;
1082 case SYS_DVBS2:
1083 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1084 if (internal->lock) {
1085 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1086 if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1087 *status |= FE_HAS_CARRIER;
1088 dprintk(state->verbose, FE_DEBUG, 1,
1089 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1090
1091 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1092 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1093 *status |= FE_HAS_LOCK;
1094 dprintk(state->verbose, FE_DEBUG, 1,
1095 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1096
1097 }
1098 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1099 *status |= FE_HAS_VITERBI;
1100 dprintk(state->verbose, FE_DEBUG, 1,
1101 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1102 }
1103 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1104 *status |= FE_HAS_SYNC;
1105 dprintk(state->verbose, FE_DEBUG, 1,
1106 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1107 /* post process event */
1108 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1109 }
1110 }
1111 }
1112 break;
1113 default:
1114 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1115 return -EINVAL;
1116 }
1117 return 0;
1118 }
1119
1120 /*
1121 * stb0899_get_error
1122 * viterbi error for DVB-S/DSS
1123 * packet error for DVB-S2
1124 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1125 */
1126 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1127 {
1128 struct stb0899_state *state = fe->demodulator_priv;
1129 struct stb0899_internal *internal = &state->internal;
1130
1131 u8 lsb, msb;
1132
1133 *ber = 0;
1134
1135 switch (state->delsys) {
1136 case SYS_DVBS:
1137 case SYS_DSS:
1138 if (internal->lock) {
1139 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1140 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1141 *ber = MAKEWORD16(msb, lsb);
1142 /* Viterbi Check */
1143 if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1144 /* Error Rate */
1145 *ber *= 9766;
1146 /* ber = ber * 10 ^ 7 */
1147 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1148 *ber /= 8;
1149 }
1150 }
1151 break;
1152 case SYS_DVBS2:
1153 if (internal->lock) {
1154 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1155 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1156 *ber = MAKEWORD16(msb, lsb);
1157 /* ber = ber * 10 ^ 7 */
1158 *ber *= 10000000;
1159 *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1160 }
1161 break;
1162 default:
1163 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1164 return -EINVAL;
1165 }
1166
1167 return 0;
1168 }
1169
1170 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1171 {
1172 struct stb0899_state *state = fe->demodulator_priv;
1173
1174 switch (voltage) {
1175 case SEC_VOLTAGE_13:
1176 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1177 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1178 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1179 break;
1180 case SEC_VOLTAGE_18:
1181 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1182 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1183 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1184 break;
1185 case SEC_VOLTAGE_OFF:
1186 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1187 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1188 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1189 break;
1190 default:
1191 return -EINVAL;
1192 }
1193
1194 return 0;
1195 }
1196
1197 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1198 {
1199 struct stb0899_state *state = fe->demodulator_priv;
1200 struct stb0899_internal *internal = &state->internal;
1201
1202 u8 div, reg;
1203
1204 /* wait for diseqc idle */
1205 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1206 return -ETIMEDOUT;
1207
1208 switch (tone) {
1209 case SEC_TONE_ON:
1210 div = (internal->master_clk / 100) / 5632;
1211 div = (div + 5) / 10;
1212 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1213 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1214 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1215 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1216 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1217 break;
1218 case SEC_TONE_OFF:
1219 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1220 break;
1221 default:
1222 return -EINVAL;
1223 }
1224 return 0;
1225 }
1226
1227 int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1228 {
1229 int i2c_stat;
1230 struct stb0899_state *state = fe->demodulator_priv;
1231
1232 i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1233 if (i2c_stat < 0)
1234 goto err;
1235
1236 if (enable) {
1237 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1238 i2c_stat |= STB0899_I2CTON;
1239 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1240 goto err;
1241 } else {
1242 dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ...");
1243 i2c_stat &= ~STB0899_I2CTON;
1244 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1245 goto err;
1246 }
1247 return 0;
1248 err:
1249 dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed");
1250 return -EREMOTEIO;
1251 }
1252
1253
1254 static inline void CONVERT32(u32 x, char *str)
1255 {
1256 *str++ = (x >> 24) & 0xff;
1257 *str++ = (x >> 16) & 0xff;
1258 *str++ = (x >> 8) & 0xff;
1259 *str++ = (x >> 0) & 0xff;
1260 *str = '\0';
1261 }
1262
1263 static int stb0899_get_dev_id(struct stb0899_state *state)
1264 {
1265 u8 chip_id, release;
1266 u16 id;
1267 u32 demod_ver = 0, fec_ver = 0;
1268 char demod_str[5] = { 0 };
1269 char fec_str[5] = { 0 };
1270
1271 id = stb0899_read_reg(state, STB0899_DEV_ID);
1272 dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1273 chip_id = STB0899_GETFIELD(CHIP_ID, id);
1274 release = STB0899_GETFIELD(CHIP_REL, id);
1275
1276 dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1277 chip_id, release);
1278
1279 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1280
1281 demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1282 dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1283 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1284 fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1285 if (! (chip_id > 0)) {
1286 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1287
1288 return -ENODEV;
1289 }
1290 dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1291
1292 return 0;
1293 }
1294
1295 static void stb0899_set_delivery(struct stb0899_state *state)
1296 {
1297 u8 reg;
1298 u8 stop_clk[2];
1299
1300 stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1301 stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1302
1303 switch (state->delsys) {
1304 case SYS_DVBS:
1305 dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1306 /* FECM/Viterbi ON */
1307 reg = stb0899_read_reg(state, STB0899_FECM);
1308 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1309 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1310 stb0899_write_reg(state, STB0899_FECM, reg);
1311
1312 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1313 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1314 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1315 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1316
1317 reg = stb0899_read_reg(state, STB0899_TSTRES);
1318 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1319 stb0899_write_reg(state, STB0899_TSTRES, reg);
1320
1321 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1322 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1323 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1324
1325 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1326 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1327
1328 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1329 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1330
1331 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1332 break;
1333 case SYS_DVBS2:
1334 /* FECM/Viterbi OFF */
1335 reg = stb0899_read_reg(state, STB0899_FECM);
1336 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1337 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1338 stb0899_write_reg(state, STB0899_FECM, reg);
1339
1340 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1341 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1342 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1343 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1344
1345 reg = stb0899_read_reg(state, STB0899_TSTRES);
1346 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1347 stb0899_write_reg(state, STB0899_TSTRES, reg);
1348
1349 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1350 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1351 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1352
1353 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1354 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1355
1356 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1357 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1358
1359 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1360 break;
1361 case SYS_DSS:
1362 /* FECM/Viterbi ON */
1363 reg = stb0899_read_reg(state, STB0899_FECM);
1364 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1365 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1366 stb0899_write_reg(state, STB0899_FECM, reg);
1367
1368 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1369 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1370 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1371
1372 reg = stb0899_read_reg(state, STB0899_TSTRES);
1373 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1374 stb0899_write_reg(state, STB0899_TSTRES, reg);
1375
1376 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1377 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1378 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1379
1380 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1381 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1382
1383 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1384
1385 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1386 break;
1387 default:
1388 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1389 break;
1390 }
1391 STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1392 stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1393 }
1394
1395 /*
1396 * stb0899_set_iterations
1397 * set the LDPC iteration scale function
1398 */
1399 static void stb0899_set_iterations(struct stb0899_state *state)
1400 {
1401 struct stb0899_internal *internal = &state->internal;
1402 struct stb0899_config *config = state->config;
1403
1404 s32 iter_scale;
1405 u32 reg;
1406
1407 iter_scale = 17 * (internal->master_clk / 1000);
1408 iter_scale += 410000;
1409 iter_scale /= (internal->srate / 1000000);
1410 iter_scale /= 1000;
1411
1412 if (iter_scale > config->ldpc_max_iter)
1413 iter_scale = config->ldpc_max_iter;
1414
1415 reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
1416 STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1417 stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1418 }
1419
1420 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe)
1421 {
1422 struct stb0899_state *state = fe->demodulator_priv;
1423 struct stb0899_params *i_params = &state->params;
1424 struct stb0899_internal *internal = &state->internal;
1425 struct stb0899_config *config = state->config;
1426 struct dtv_frontend_properties *props = &fe->dtv_property_cache;
1427
1428 u32 SearchRange, gain;
1429
1430 i_params->freq = props->frequency;
1431 i_params->srate = props->symbol_rate;
1432 state->delsys = props->delivery_system;
1433 dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1434
1435 SearchRange = 10000000;
1436 dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1437 /* checking Search Range is meaningless for a fixed 3 Mhz */
1438 if (INRANGE(i_params->srate, 1000000, 45000000)) {
1439 dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1440 stb0899_set_delivery(state);
1441
1442 if (state->config->tuner_set_rfsiggain) {
1443 if (internal->srate > 15000000)
1444 gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
1445 else if (internal->srate > 5000000)
1446 gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
1447 else
1448 gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
1449 state->config->tuner_set_rfsiggain(fe, gain);
1450 }
1451
1452 if (i_params->srate <= 5000000)
1453 stb0899_set_mclk(state, config->lo_clk);
1454 else
1455 stb0899_set_mclk(state, config->hi_clk);
1456
1457 switch (state->delsys) {
1458 case SYS_DVBS:
1459 case SYS_DSS:
1460 dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system");
1461 internal->freq = i_params->freq;
1462 internal->srate = i_params->srate;
1463 /*
1464 * search = user search range +
1465 * 500Khz +
1466 * 2 * Tuner_step_size +
1467 * 10% of the symbol rate
1468 */
1469 internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
1470 internal->derot_percent = 30;
1471
1472 /* What to do for tuners having no bandwidth setup ? */
1473 /* enable tuner I/O */
1474 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1475
1476 if (state->config->tuner_set_bandwidth)
1477 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
1478 if (state->config->tuner_get_bandwidth)
1479 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1480
1481 /* disable tuner I/O */
1482 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1483
1484 /* Set DVB-S1 AGC */
1485 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1486
1487 /* Run the search algorithm */
1488 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1489 if (stb0899_dvbs_algo(state) == RANGEOK) {
1490 internal->lock = 1;
1491 dprintk(state->verbose, FE_DEBUG, 1,
1492 "-------------------------------------> DVB-S LOCK !");
1493
1494 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1495 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1496 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1497 // dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1498 // dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1499
1500 return DVBFE_ALGO_SEARCH_SUCCESS;
1501 } else {
1502 internal->lock = 0;
1503
1504 return DVBFE_ALGO_SEARCH_FAILED;
1505 }
1506 break;
1507 case SYS_DVBS2:
1508 internal->freq = i_params->freq;
1509 internal->srate = i_params->srate;
1510 internal->srch_range = SearchRange;
1511
1512 /* enable tuner I/O */
1513 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1514
1515 if (state->config->tuner_set_bandwidth)
1516 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
1517 if (state->config->tuner_get_bandwidth)
1518 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1519
1520 /* disable tuner I/O */
1521 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1522
1523 // pParams->SpectralInv = pSearch->IQ_Inversion;
1524
1525 /* Set DVB-S2 AGC */
1526 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1527
1528 /* Set IterScale =f(MCLK,SYMB) */
1529 stb0899_set_iterations(state);
1530
1531 /* Run the search algorithm */
1532 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1533 if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
1534 internal->lock = 1;
1535 dprintk(state->verbose, FE_DEBUG, 1,
1536 "-------------------------------------> DVB-S2 LOCK !");
1537
1538 // stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1539 // internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1540 // internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1541
1542 return DVBFE_ALGO_SEARCH_SUCCESS;
1543 } else {
1544 internal->lock = 0;
1545
1546 return DVBFE_ALGO_SEARCH_FAILED;
1547 }
1548 break;
1549 default:
1550 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1551 return DVBFE_ALGO_SEARCH_INVALID;
1552 }
1553 }
1554
1555 return DVBFE_ALGO_SEARCH_ERROR;
1556 }
1557
1558 static int stb0899_get_frontend(struct dvb_frontend *fe)
1559 {
1560 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1561 struct stb0899_state *state = fe->demodulator_priv;
1562 struct stb0899_internal *internal = &state->internal;
1563
1564 dprintk(state->verbose, FE_DEBUG, 1, "Get params");
1565 p->symbol_rate = internal->srate;
1566 p->frequency = internal->freq;
1567
1568 return 0;
1569 }
1570
1571 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1572 {
1573 return DVBFE_ALGO_CUSTOM;
1574 }
1575
1576 static struct dvb_frontend_ops stb0899_ops = {
1577 .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
1578 .info = {
1579 .name = "STB0899 Multistandard",
1580 .frequency_min = 950000,
1581 .frequency_max = 2150000,
1582 .frequency_stepsize = 0,
1583 .frequency_tolerance = 0,
1584 .symbol_rate_min = 5000000,
1585 .symbol_rate_max = 45000000,
1586
1587 .caps = FE_CAN_INVERSION_AUTO |
1588 FE_CAN_FEC_AUTO |
1589 FE_CAN_2G_MODULATION |
1590 FE_CAN_QPSK
1591 },
1592
1593 .release = stb0899_release,
1594 .init = stb0899_init,
1595 .sleep = stb0899_sleep,
1596 // .wakeup = stb0899_wakeup,
1597
1598 .i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
1599
1600 .get_frontend_algo = stb0899_frontend_algo,
1601 .search = stb0899_search,
1602 .get_frontend = stb0899_get_frontend,
1603
1604
1605 .read_status = stb0899_read_status,
1606 .read_snr = stb0899_read_snr,
1607 .read_signal_strength = stb0899_read_signal_strength,
1608 .read_ber = stb0899_read_ber,
1609
1610 .set_voltage = stb0899_set_voltage,
1611 .set_tone = stb0899_set_tone,
1612
1613 .diseqc_send_master_cmd = stb0899_send_diseqc_msg,
1614 .diseqc_recv_slave_reply = stb0899_recv_slave_reply,
1615 .diseqc_send_burst = stb0899_send_diseqc_burst,
1616 };
1617
1618 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1619 {
1620 struct stb0899_state *state = NULL;
1621 enum stb0899_inversion inversion;
1622
1623 state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1624 if (state == NULL)
1625 goto error;
1626
1627 inversion = config->inversion;
1628 state->verbose = &verbose;
1629 state->config = config;
1630 state->i2c = i2c;
1631 state->frontend.ops = stb0899_ops;
1632 state->frontend.demodulator_priv = state;
1633 state->internal.inversion = inversion;
1634
1635 stb0899_wakeup(&state->frontend);
1636 if (stb0899_get_dev_id(state) == -ENODEV) {
1637 printk("%s: Exiting .. !\n", __func__);
1638 goto error;
1639 }
1640
1641 printk("%s: Attaching STB0899 \n", __func__);
1642 return &state->frontend;
1643
1644 error:
1645 kfree(state);
1646 return NULL;
1647 }
1648 EXPORT_SYMBOL(stb0899_attach);
1649 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1650 MODULE_AUTHOR("Manu Abraham");
1651 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1652 MODULE_LICENSE("GPL");
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