]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - drivers/media/dvb-frontends/stb0899_drv.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[media] DocBook: add xrefs for enum fe_type
[mirror_ubuntu-bionic-kernel.git] / drivers / media / dvb-frontends / stb0899_drv.c
CommitLineData
8bd135ba
MA		 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>
3edd59ab 23#include <linux/jiffies.h>
8bd135ba
MA		 24#include <linux/kernel.h>
25#include <linux/module.h>
5a0e3ad6 26#include <linux/slab.h>
8bd135ba
MA		 27#include <linux/string.h>
28
29#include <linux/dvb/frontend.h>
30#include "dvb_frontend.h"
31
32#include "stb0899_drv.h"
33#include "stb0899_priv.h"
34#include "stb0899_reg.h"
35
ba474642
MCC		 36/* Max transfer size done by I2C transfer functions */
37#define MAX_XFER_SIZE 64
38
c615a27a 39static unsigned int verbose = 0;//1;
8bd135ba
MA		 40module_param(verbose, int, 0644);
41
42/* C/N in dB/10, NIRM/NIRL */
43static const struct stb0899_tab stb0899_cn_tab[] = {
44 { 200, 2600 },
45 { 190, 2700 },
46 { 180, 2860 },
47 { 170, 3020 },
48 { 160, 3210 },
49 { 150, 3440 },
50 { 140, 3710 },
51 { 130, 4010 },
52 { 120, 4360 },
53 { 110, 4740 },
54 { 100, 5190 },
55 { 90, 5670 },
56 { 80, 6200 },
57 { 70, 6770 },
58 { 60, 7360 },
59 { 50, 7970 },
60 { 40, 8250 },
61 { 30, 9000 },
62 { 20, 9450 },
63 { 15, 9600 },
64};
65
66/* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
67 * As measured, connected to a modulator.
68 * -8.0 to -50.0 dBm directly connected,
69 * -52.0 to -74.8 with extra attenuation.
70 * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
71 * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
72 */
73static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
0e377819 74 { -750, -128 },
8bd135ba
MA		 75 { -748, -94 },
76 { -745, -92 },
77 { -735, -90 },
78 { -720, -87 },
79 { -670, -77 },
80 { -640, -70 },
81 { -610, -62 },
82 { -600, -60 },
83 { -590, -56 },
84 { -560, -41 },
85 { -540, -25 },
86 { -530, -17 },
87 { -520, -11 },
88 { -500, 1 },
89 { -490, 6 },
90 { -480, 10 },
91 { -440, 22 },
92 { -420, 27 },
93 { -400, 31 },
94 { -380, 34 },
95 { -340, 40 },
96 { -320, 43 },
97 { -280, 48 },
98 { -250, 52 },
99 { -230, 55 },
100 { -180, 61 },
101 { -140, 66 },
102 { -90, 73 },
103 { -80, 74 },
104 { 500, 127 }
105};
106
107/* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
108 * As measured, connected to a modulator.
109 * -8.0 to -50.1 dBm directly connected,
110 * -53.0 to -76.6 with extra attenuation.
111 * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
112 * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
113 */
114static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
115 { 700, 0 },
116 { -80, 3217 },
117 { -150, 3893 },
118 { -190, 4217 },
119 { -240, 4621 },
120 { -280, 4945 },
121 { -320, 5273 },
122 { -350, 5545 },
123 { -370, 5741 },
124 { -410, 6147 },
125 { -450, 6671 },
126 { -490, 7413 },
127 { -501, 7665 },
128 { -530, 8767 },
129 { -560, 10219 },
130 { -580, 10939 },
131 { -590, 11518 },
132 { -600, 11723 },
133 { -650, 12659 },
134 { -690, 13219 },
135 { -730, 13645 },
136 { -750, 13909 },
137 { -766, 14153 },
0e377819 138 { -950, 16383 }
8bd135ba
MA		 139};
140
141/* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
ffbc5f88 142static struct stb0899_tab stb0899_quant_tab[] = {
8bd135ba
MA		 143 { 0, 0 },
144 { 0, 100 },
145 { 600, 200 },
146 { 950, 299 },
147 { 1200, 398 },
148 { 1400, 501 },
149 { 1560, 603 },
150 { 1690, 700 },
151 { 1810, 804 },
152 { 1910, 902 },
153 { 2000, 1000 },
154 { 2080, 1096 },
155 { 2160, 1202 },
156 { 2230, 1303 },
157 { 2350, 1496 },
158 { 2410, 1603 },
159 { 2460, 1698 },
160 { 2510, 1799 },
161 { 2600, 1995 },
162 { 2650, 2113 },
163 { 2690, 2213 },
164 { 2720, 2291 },
165 { 2760, 2399 },
166 { 2800, 2512 },
167 { 2860, 2692 },
168 { 2930, 2917 },
169 { 2960, 3020 },
170 { 3010, 3199 },
171 { 3040, 3311 },
172 { 3060, 3388 },
173 { 3120, 3631 },
174 { 3190, 3936 },
175 { 3400, 5012 },
176 { 3610, 6383 },
177 { 3800, 7943 },
178 { 4210, 12735 },
179 { 4500, 17783 },
180 { 4690, 22131 },
181 { 4810, 25410 }
182};
183
184/* DVB-S2 Es/N0 estimate in dB/100 vs read value */
ffbc5f88 185static struct stb0899_tab stb0899_est_tab[] = {
8bd135ba
MA		 186 { 0, 0 },
187 { 0, 1 },
188 { 301, 2 },
189 { 1204, 16 },
190 { 1806, 64 },
191 { 2408, 256 },
192 { 2709, 512 },
193 { 3010, 1023 },
194 { 3311, 2046 },
195 { 3612, 4093 },
196 { 3823, 6653 },
197 { 3913, 8185 },
198 { 4010, 10233 },
199 { 4107, 12794 },
200 { 4214, 16368 },
201 { 4266, 18450 },
202 { 4311, 20464 },
203 { 4353, 22542 },
204 { 4391, 24604 },
205 { 4425, 26607 },
206 { 4457, 28642 },
207 { 4487, 30690 },
208 { 4515, 32734 },
209 { 4612, 40926 },
210 { 4692, 49204 },
211 { 4816, 65464 },
212 { 4913, 81846 },
213 { 4993, 98401 },
214 { 5060, 114815 },
215 { 5118, 131220 },
216 { 5200, 158489 },
217 { 5300, 199526 },
218 { 5400, 251189 },
219 { 5500, 316228 },
220 { 5600, 398107 },
221 { 5720, 524807 },
222 { 5721, 526017 },
223};
224
ffbc5f88 225static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
8bd135ba
MA		 226{
227 int ret;
228
229 u8 b0[] = { reg >> 8, reg & 0xff };
230 u8 buf;
231
232 struct i2c_msg msg[] = {
233 {
234 .addr = state->config->demod_address,
235 .flags = 0,
236 .buf = b0,
237 .len = 2
238 },{
239 .addr = state->config->demod_address,
240 .flags = I2C_M_RD,
241 .buf = &buf,
242 .len = 1
243 }
244 };
245
246 ret = i2c_transfer(state->i2c, msg, 2);
247 if (ret != 2) {
248 if (ret != -ERESTARTSYS)
c615a27a 249 dprintk(state->verbose, FE_ERROR, 1,
8bd135ba
MA		 250 "Read error, Reg=[0x%02x], Status=%d",
251 reg, ret);
252
253 return ret < 0 ? ret : -EREMOTEIO;
254 }
c615a27a
RN		 255 if (unlikely(*state->verbose >= FE_DEBUGREG))
256 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
8bd135ba
MA		 257 reg, buf);
258
8bd135ba
MA		 259 return (unsigned int)buf;
260}
261
262int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
263{
264 int result;
265
266 result = _stb0899_read_reg(state, reg);
267 /*
268 * Bug ID 9:
269 * access to 0xf2xx/0xf6xx
270 * must be followed by read from 0xf2ff/0xf6ff.
271 */
272 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
273 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
274 _stb0899_read_reg(state, (reg | 0x00ff));
275
276 return result;
277}
278
279u32 _stb0899_read_s2reg(struct stb0899_state *state,
886134e4
IL		 280 u32 stb0899_i2cdev,
281 u32 stb0899_base_addr,
282 u16 stb0899_reg_offset)
8bd135ba
MA		 283{
284 int status;
285 u32 data;
286 u8 buf[7] = { 0 };
287 u16 tmpaddr;
288
289 u8 buf_0[] = {
290 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
291 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
292 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
293 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
294 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
295 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
296 };
297 u8 buf_1[] = {
298 0x00, /* 0xf3 Reg Offset */
299 0x00, /* 0x44 Reg Offset */
300 };
301
302 struct i2c_msg msg_0 = {
303 .addr = state->config->demod_address,
304 .flags = 0,
305 .buf = buf_0,
306 .len = 6
307 };
308
309 struct i2c_msg msg_1 = {
310 .addr = state->config->demod_address,
311 .flags = 0,
312 .buf = buf_1,
313 .len = 2
314 };
315
316 struct i2c_msg msg_r = {
317 .addr = state->config->demod_address,
318 .flags = I2C_M_RD,
319 .buf = buf,
320 .len = 4
321 };
322
323 tmpaddr = stb0899_reg_offset & 0xff00;
324 if (!(stb0899_reg_offset & 0x8))
325 tmpaddr = stb0899_reg_offset | 0x20;
326
327 buf_1[0] = GETBYTE(tmpaddr, BYTE1);
328 buf_1[1] = GETBYTE(tmpaddr, BYTE0);
329
330 status = i2c_transfer(state->i2c, &msg_0, 1);
331 if (status < 1) {
332 if (status != -ERESTARTSYS)
333 printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
334 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
335
336 goto err;
337 }
338
339 /* Dummy */
340 status = i2c_transfer(state->i2c, &msg_1, 1);
341 if (status < 1)
342 goto err;
343
344 status = i2c_transfer(state->i2c, &msg_r, 1);
345 if (status < 1)
346 goto err;
347
348 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
349 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
350
351 /* Actual */
352 status = i2c_transfer(state->i2c, &msg_1, 1);
353 if (status < 1) {
354 if (status != -ERESTARTSYS)
355 printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
356 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
357 goto err;
358 }
359
360 status = i2c_transfer(state->i2c, &msg_r, 1);
361 if (status < 1) {
362 if (status != -ERESTARTSYS)
363 printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
364 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
365 return status < 0 ? status : -EREMOTEIO;
366 }
367
368 data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
c615a27a 369 if (unlikely(*state->verbose >= FE_DEBUGREG))
8bd135ba
MA		 370 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
371 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
372
373 return data;
374
375err:
376 return status < 0 ? status : -EREMOTEIO;
377}
378
379int stb0899_write_s2reg(struct stb0899_state *state,
380 u32 stb0899_i2cdev,
381 u32 stb0899_base_addr,
382 u16 stb0899_reg_offset,
383 u32 stb0899_data)
384{
385 int status;
386
387 /* Base Address Setup */
388 u8 buf_0[] = {
389 GETBYTE(stb0899_i2cdev, BYTE1), /* 0xf3 S2 Base Address (MSB) */
390 GETBYTE(stb0899_i2cdev, BYTE0), /* 0xfc S2 Base Address (LSB) */
391 GETBYTE(stb0899_base_addr, BYTE0), /* 0x00 Base Address (LSB) */
392 GETBYTE(stb0899_base_addr, BYTE1), /* 0x04 Base Address (LSB) */
393 GETBYTE(stb0899_base_addr, BYTE2), /* 0x00 Base Address (MSB) */
394 GETBYTE(stb0899_base_addr, BYTE3), /* 0x00 Base Address (MSB) */
395 };
396 u8 buf_1[] = {
397 0x00, /* 0xf3 Reg Offset */
398 0x00, /* 0x44 Reg Offset */
399 0x00, /* data */
400 0x00, /* data */
401 0x00, /* data */
402 0x00, /* data */
403 };
404
405 struct i2c_msg msg_0 = {
406 .addr = state->config->demod_address,
407 .flags = 0,
408 .buf = buf_0,
409 .len = 6
410 };
411
412 struct i2c_msg msg_1 = {
413 .addr = state->config->demod_address,
414 .flags = 0,
415 .buf = buf_1,
416 .len = 6
417 };
418
419 buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
420 buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
421 buf_1[2] = GETBYTE(stb0899_data, BYTE0);
422 buf_1[3] = GETBYTE(stb0899_data, BYTE1);
423 buf_1[4] = GETBYTE(stb0899_data, BYTE2);
424 buf_1[5] = GETBYTE(stb0899_data, BYTE3);
425
c615a27a 426 if (unlikely(*state->verbose >= FE_DEBUGREG))
8bd135ba
MA		 427 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
428 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
429
430 status = i2c_transfer(state->i2c, &msg_0, 1);
431 if (unlikely(status < 1)) {
432 if (status != -ERESTARTSYS)
433 printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
434 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
435 goto err;
436 }
437 status = i2c_transfer(state->i2c, &msg_1, 1);
438 if (unlikely(status < 1)) {
439 if (status != -ERESTARTSYS)
440 printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
441 __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
442
443 return status < 0 ? status : -EREMOTEIO;
444 }
445
446 return 0;
447
448err:
449 return status < 0 ? status : -EREMOTEIO;
450}
451
3d6a3beb 452int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count)
8bd135ba
MA		 453{
454 int status;
455
456 u8 b0[] = { reg >> 8, reg & 0xff };
457
458 struct i2c_msg msg[] = {
459 {
460 .addr = state->config->demod_address,
461 .flags = 0,
462 .buf = b0,
463 .len = 2
464 },{
465 .addr = state->config->demod_address,
466 .flags = I2C_M_RD,
467 .buf = buf,
468 .len = count
469 }
470 };
471
472 status = i2c_transfer(state->i2c, msg, 2);
473 if (status != 2) {
474 if (status != -ERESTARTSYS)
475 printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
476 __func__, reg, count, status);
477 goto err;
478 }
479 /*
480 * Bug ID 9:
481 * access to 0xf2xx/0xf6xx
482 * must be followed by read from 0xf2ff/0xf6ff.
483 */
484 if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
485 (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
486 _stb0899_read_reg(state, (reg | 0x00ff));
487
c615a27a 488 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
8bd135ba
MA		 489 int i;
490
491 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
492 for (i = 0; i < count; i++) {
493 printk(" %02x", buf[i]);
494 }
495 printk("\n");
496 }
497
498 return 0;
499err:
500 return status < 0 ? status : -EREMOTEIO;
501}
502
85eabac4 503int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
8bd135ba
MA		 504{
505 int ret;
ba474642 506 u8 buf[MAX_XFER_SIZE];
8bd135ba
MA		 507 struct i2c_msg i2c_msg = {
508 .addr = state->config->demod_address,
509 .flags = 0,
510 .buf = buf,
511 .len = 2 + count
512 };
513
ba474642
MCC		 514 if (2 + count > sizeof(buf)) {
515 printk(KERN_WARNING
516 "%s: i2c wr reg=%04x: len=%d is too big!\n",
517 KBUILD_MODNAME, reg, count);
518 return -EINVAL;
519 }
520
8bd135ba
MA		 521 buf[0] = reg >> 8;
522 buf[1] = reg & 0xff;
523 memcpy(&buf[2], data, count);
524
c615a27a 525 if (unlikely(*state->verbose >= FE_DEBUGREG)) {
8bd135ba
MA		 526 int i;
527
528 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
529 for (i = 0; i < count; i++)
530 printk(" %02x", data[i]);
531 printk("\n");
532 }
533 ret = i2c_transfer(state->i2c, &i2c_msg, 1);
534
535 /*
536 * Bug ID 9:
537 * access to 0xf2xx/0xf6xx
538 * must be followed by read from 0xf2ff/0xf6ff.
539 */
540 if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
541 stb0899_read_reg(state, (reg | 0x00ff));
542
543 if (ret != 1) {
544 if (ret != -ERESTARTSYS)
c615a27a 545 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
8bd135ba
MA		 546 reg, data[0], count, ret);
547 return ret < 0 ? ret : -EREMOTEIO;
548 }
549
550 return 0;
551}
552
553int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
554{
555 return stb0899_write_regs(state, reg, &data, 1);
556}
557
558/*
559 * stb0899_get_mclk
560 * Get STB0899 master clock frequency
561 * ExtClk: external clock frequency (Hz)
562 */
563static u32 stb0899_get_mclk(struct stb0899_state *state)
564{
72f78416 565 u32 mclk = 0, div = 0;
8bd135ba
MA		 566
567 div = stb0899_read_reg(state, STB0899_NCOARSE);
568 mclk = (div + 1) * state->config->xtal_freq / 6;
c615a27a 569 dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
8bd135ba
MA		 570
571 return mclk;
572}
573
574/*
575 * stb0899_set_mclk
576 * Set STB0899 master Clock frequency
577 * Mclk: demodulator master clock
578 * ExtClk: external clock frequency (Hz)
579 */
580static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
581{
582 struct stb0899_internal *internal = &state->internal;
583 u8 mdiv = 0;
584
c615a27a 585 dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config);
8bd135ba 586 mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
c615a27a 587 dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
8bd135ba
MA		 588
589 stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
590 internal->master_clk = stb0899_get_mclk(state);
591
c615a27a 592 dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
8bd135ba
MA		 593}
594
b168e351
MA		 595static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
596{
597 struct stb0899_config *config = state->config;
043a68b3 598 const struct stb0899_postproc *postproc = config->postproc;
b168e351
MA		 599
600 /* post process event */
601 if (postproc) {
602 if (enable) {
9efdd297 603 if (postproc[ctl].level == STB0899_GPIOPULLUP)
b168e351
MA		 604 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
605 else
606 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
607 } else {
9efdd297 608 if (postproc[ctl].level == STB0899_GPIOPULLUP)
b168e351
MA		 609 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
610 else
611 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
612 }
613 }
614 return 0;
615}
616
8bd135ba
MA		 617static void stb0899_release(struct dvb_frontend *fe)
618{
619 struct stb0899_state *state = fe->demodulator_priv;
620
c615a27a 621 dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend");
b168e351
MA		 622 /* post process event */
623 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
8bd135ba
MA		 624 kfree(state);
625}
626
627/*
628 * stb0899_get_alpha
629 * return: rolloff
630 */
631static int stb0899_get_alpha(struct stb0899_state *state)
632{
633 u8 mode_coeff;
634
635 mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
636
637 if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
638 return 20;
639 else
640 return 35;
641}
642
643/*
644 * stb0899_init_calc
645 */
646static void stb0899_init_calc(struct stb0899_state *state)
647{
648 struct stb0899_internal *internal = &state->internal;
649 int master_clk;
7d8f1e57 650 u8 agc[2];
8bd135ba
MA		 651 u32 reg;
652
653 /* Read registers (in burst mode) */
8bd135ba
MA		 654 stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O */
655
656 /* Initial calculations */
657 master_clk = stb0899_get_mclk(state);
658 internal->t_agc1 = 0;
659 internal->t_agc2 = 0;
660 internal->master_clk = master_clk;
661 internal->mclk = master_clk / 65536L;
662 internal->rolloff = stb0899_get_alpha(state);
663
664 /* DVBS2 Initial calculations */
665 /* Set AGC value to the middle */
666 internal->agc_gain = 8154;
667 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
668 STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
669 stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
670
671 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
672 internal->rrc_alpha = STB0899_GETFIELD(RRC_ALPHA, reg);
673
674 internal->center_freq = 0;
675 internal->av_frame_coarse = 10;
676 internal->av_frame_fine = 20;
677 internal->step_size = 2;
678/*
679 if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
680 pParams->IQLocked = 0;
681 else
682 pParams->IQLocked = 1;
683*/
684}
685
686static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
687{
688 u8 reg = 0;
689 unsigned long start = jiffies;
690
691 while (1) {
692 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
693 if (!STB0899_GETFIELD(FIFOFULL, reg))
694 break;
3edd59ab 695 if (time_after(jiffies, start + timeout)) {
c615a27a 696 dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
8bd135ba
MA		 697 return -ETIMEDOUT;
698 }
699 }
700
701 return 0;
702}
703
704static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
705{
706 struct stb0899_state *state = fe->demodulator_priv;
707 u8 reg, i;
708
b9f62ffe 709 if (cmd->msg_len > sizeof(cmd->msg))
8bd135ba
MA		 710 return -EINVAL;
711
712 /* enable FIFO precharge */
713 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
714 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
715 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
716 for (i = 0; i < cmd->msg_len; i++) {
717 /* wait for FIFO empty */
aad04c77 718 if (stb0899_wait_diseqc_fifo_empty(state, 100) < 0)
8bd135ba
MA		 719 return -ETIMEDOUT;
720
721 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
722 }
723 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
724 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
725 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
1697c8df 726 msleep(100);
8bd135ba
MA		 727 return 0;
728}
729
730static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
731{
732 u8 reg = 0;
733 unsigned long start = jiffies;
734
735 while (!STB0899_GETFIELD(RXEND, reg)) {
736 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
3edd59ab 737 if (time_after(jiffies, start + timeout)) {
c615a27a 738 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
8bd135ba
MA		 739 return -ETIMEDOUT;
740 }
741 msleep(10);
742 }
743
744 return 0;
745}
746
747static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
748{
749 struct stb0899_state *state = fe->demodulator_priv;
750 u8 reg, length = 0, i;
751 int result;
752
753 if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
754 return -ETIMEDOUT;
755
756 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
757 if (STB0899_GETFIELD(RXEND, reg)) {
758
759 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
760 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
761
762 if (length > sizeof (reply->msg)) {
763 result = -EOVERFLOW;
764 goto exit;
765 }
766 reply->msg_len = length;
767
768 /* extract data */
769 for (i = 0; i < length; i++)
770 reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
771 }
772
773 return 0;
774exit:
775
776 return result;
777}
778
779static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
780{
781 u8 reg = 0;
782 unsigned long start = jiffies;
783
784 while (!STB0899_GETFIELD(TXIDLE, reg)) {
785 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
3edd59ab 786 if (time_after(jiffies, start + timeout)) {
c615a27a 787 dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
8bd135ba
MA		 788 return -ETIMEDOUT;
789 }
790 msleep(10);
791 }
792 return 0;
793}
794
795static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
796{
797 struct stb0899_state *state = fe->demodulator_priv;
798 u8 reg, old_state;
799
800 /* wait for diseqc idle */
801 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
802 return -ETIMEDOUT;
803
804 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
805 old_state = reg;
806 /* set to burst mode */
d284e4f7 807 STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03);
8bd135ba
MA		 808 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
809 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
810 switch (burst) {
811 case SEC_MINI_A:
812 /* unmodulated */
813 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
814 break;
815 case SEC_MINI_B:
816 /* modulated */
817 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
818 break;
819 }
820 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
821 STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
822 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
823 /* wait for diseqc idle */
824 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
825 return -ETIMEDOUT;
826
827 /* restore state */
828 stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
829
830 return 0;
831}
832
6c1022cb
MA		 833static int stb0899_diseqc_init(struct stb0899_state *state)
834{
3f400925 835/*
6c1022cb 836 struct dvb_diseqc_slave_reply rx_data;
3f400925 837*/
5becbc58 838 u8 f22_tx, reg;
6c1022cb 839
3f400925 840 u32 mclk, tx_freq = 22000;/* count = 0, i; */
6c1022cb
MA		 841 reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
842 STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
843 stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
844
845 /* disable Tx spy */
846 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
847 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
848 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
849
850 reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
851 STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
852 stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
853
854 mclk = stb0899_get_mclk(state);
855 f22_tx = mclk / (tx_freq * 32);
856 stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq */
857 state->rx_freq = 20000;
6c1022cb
MA		 858
859 return 0;
860}
8bd135ba
MA		 861
862static int stb0899_sleep(struct dvb_frontend *fe)
863{
864 struct stb0899_state *state = fe->demodulator_priv;
3f400925 865/*
8bd135ba 866 u8 reg;
3f400925 867*/
c615a27a 868 dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
b168e351
MA		 869 /* post process event */
870 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
871
8bd135ba
MA		 872 return 0;
873}
874
875static int stb0899_wakeup(struct dvb_frontend *fe)
876{
877 int rc;
878 struct stb0899_state *state = fe->demodulator_priv;
879
de29eb82
MA		 880 if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
881 return rc;
882 /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
883 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
884 return rc;
885 if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
886 return rc;
8bd135ba 887
b168e351
MA		 888 /* post process event */
889 stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
890
8bd135ba
MA		 891 return 0;
892}
893
894static int stb0899_init(struct dvb_frontend *fe)
895{
896 int i;
897 struct stb0899_state *state = fe->demodulator_priv;
898 struct stb0899_config *config = state->config;
899
c615a27a 900 dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
8bd135ba
MA		 901
902 /* init device */
c615a27a 903 dprintk(state->verbose, FE_DEBUG, 1, "init device");
8bd135ba
MA		 904 for (i = 0; config->init_dev[i].address != 0xffff; i++)
905 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
906
c615a27a 907 dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod");
8bd135ba
MA		 908 /* init S2 demod */
909 for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
910 stb0899_write_s2reg(state, STB0899_S2DEMOD,
911 config->init_s2_demod[i].base_address,
912 config->init_s2_demod[i].offset,
913 config->init_s2_demod[i].data);
914
c615a27a 915 dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod");
8bd135ba
MA		 916 /* init S1 demod */
917 for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
918 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
919
c615a27a 920 dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC");
8bd135ba
MA		 921 /* init S2 fec */
922 for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
923 stb0899_write_s2reg(state, STB0899_S2FEC,
924 config->init_s2_fec[i].base_address,
925 config->init_s2_fec[i].offset,
926 config->init_s2_fec[i].data);
927
c615a27a 928 dprintk(state->verbose, FE_DEBUG, 1, "init TST");
8bd135ba
MA		 929 /* init test */
930 for (i = 0; config->init_tst[i].address != 0xffff; i++)
931 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
932
933 stb0899_init_calc(state);
6c1022cb 934 stb0899_diseqc_init(state);
8bd135ba
MA		 935
936 return 0;
937}
938
939static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
940{
941 int res = 0;
942 int min = 0, med;
943
944 if (val < tab[min].read)
945 res = tab[min].real;
946 else if (val >= tab[max].read)
947 res = tab[max].real;
948 else {
949 while ((max - min) > 1) {
950 med = (max + min) / 2;
951 if (val >= tab[min].read && val < tab[med].read)
952 max = med;
953 else
954 min = med;
955 }
956 res = ((val - tab[min].read) *
957 (tab[max].real - tab[min].real) /
958 (tab[max].read - tab[min].read)) +
959 tab[min].real;
960 }
961
962 return res;
963}
964
965static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
966{
967 struct stb0899_state *state = fe->demodulator_priv;
968 struct stb0899_internal *internal = &state->internal;
969
970 int val;
971 u32 reg;
0e377819 972 *strength = 0;
8bd135ba 973 switch (state->delsys) {
3f400925
MA		 974 case SYS_DVBS:
975 case SYS_DSS:
8bd135ba
MA		 976 if (internal->lock) {
977 reg = stb0899_read_reg(state, STB0899_VSTATUS);
978 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
979
980 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
981 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
982
983 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
984 *strength += 750;
c615a27a 985 dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
8bd135ba
MA		 986 val & 0xff, *strength);
987 }
988 }
989 break;
3f400925 990 case SYS_DVBS2:
8bd135ba 991 if (internal->lock) {
ef3d23de 992 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN);
8bd135ba
MA		 993 val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
994
995 *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
0e377819 996 *strength += 950;
c615a27a 997 dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
8bd135ba
MA		 998 val & 0x3fff, *strength);
999 }
1000 break;
1001 default:
c615a27a 1002 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
417dd69d 1003 return -EINVAL;
8bd135ba
MA		 1004 }
1005
1006 return 0;
1007}
1008
1009static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
1010{
1011 struct stb0899_state *state = fe->demodulator_priv;
1012 struct stb0899_internal *internal = &state->internal;
1013
1014 unsigned int val, quant, quantn = -1, est, estn = -1;
1015 u8 buf[2];
1016 u32 reg;
1017
0e377819 1018 *snr = 0;
8bd135ba
MA		 1019 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1020 switch (state->delsys) {
3f400925
MA		 1021 case SYS_DVBS:
1022 case SYS_DSS:
8bd135ba
MA		 1023 if (internal->lock) {
1024 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1025
1026 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
1027 val = MAKEWORD16(buf[0], buf[1]);
1028
1029 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
c615a27a 1030 dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
8bd135ba
MA		 1031 buf[0], buf[1], val, *snr);
1032 }
1033 }
1034 break;
3f400925 1035 case SYS_DVBS2:
8bd135ba
MA		 1036 if (internal->lock) {
1037 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1038 quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1039 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1040 est = STB0899_GETFIELD(ESN0_EST, reg);
1041 if (est == 1)
1042 val = 301; /* C/N = 30.1 dB */
1043 else if (est == 2)
1044 val = 270; /* C/N = 27.0 dB */
1045 else {
1046 /* quantn = 100 * log(quant^2) */
1047 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1048 /* estn = 100 * log(est) */
1049 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1050 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1051 val = (quantn - estn) / 10;
1052 }
1053 *snr = val;
c615a27a 1054 dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
8bd135ba
MA		 1055 quant, quantn, est, estn, val);
1056 }
1057 break;
1058 default:
c615a27a 1059 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
417dd69d 1060 return -EINVAL;
8bd135ba
MA		 1061 }
1062
1063 return 0;
1064}
1065
1066static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1067{
1068 struct stb0899_state *state = fe->demodulator_priv;
1069 struct stb0899_internal *internal = &state->internal;
1070 u8 reg;
1071 *status = 0;
1072
1073 switch (state->delsys) {
3f400925
MA		 1074 case SYS_DVBS:
1075 case SYS_DSS:
8bd135ba
MA		 1076 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1077 if (internal->lock) {
1078 reg = stb0899_read_reg(state, STB0899_VSTATUS);
1079 if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1080 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
91caad31 1081 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
8bd135ba
MA		 1082
1083 reg = stb0899_read_reg(state, STB0899_PLPARM);
1084 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1085 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1086 *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
b168e351
MA		 1087 /* post process event */
1088 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
8bd135ba
MA		 1089 }
1090 }
1091 }
1092 break;
3f400925 1093 case SYS_DVBS2:
8bd135ba
MA		 1094 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1095 if (internal->lock) {
1096 reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1097 if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1098 *status |= FE_HAS_CARRIER;
1099 dprintk(state->verbose, FE_DEBUG, 1,
1100 "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1101
1102 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1103 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1104 *status |= FE_HAS_LOCK;
1105 dprintk(state->verbose, FE_DEBUG, 1,
1106 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1107
1108 }
1109 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1110 *status |= FE_HAS_VITERBI;
1111 dprintk(state->verbose, FE_DEBUG, 1,
1112 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1113 }
1114 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1115 *status |= FE_HAS_SYNC;
1116 dprintk(state->verbose, FE_DEBUG, 1,
1117 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
b168e351
MA		 1118 /* post process event */
1119 stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
8bd135ba
MA		 1120 }
1121 }
1122 }
1123 break;
1124 default:
c615a27a 1125 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
417dd69d 1126 return -EINVAL;
8bd135ba
MA		 1127 }
1128 return 0;
1129}
1130
1131/*
1132 * stb0899_get_error
1133 * viterbi error for DVB-S/DSS
1134 * packet error for DVB-S2
1135 * Bit Error Rate or Packet Error Rate * 10 ^ 7
1136 */
1137static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1138{
1139 struct stb0899_state *state = fe->demodulator_priv;
1140 struct stb0899_internal *internal = &state->internal;
1141
1142 u8 lsb, msb;
8bd135ba
MA		 1143
1144 *ber = 0;
1145
1146 switch (state->delsys) {
3f400925
MA		 1147 case SYS_DVBS:
1148 case SYS_DSS:
8bd135ba 1149 if (internal->lock) {
fdaaee6c
KS		 1150 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1151 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1152 *ber = MAKEWORD16(msb, lsb);
8bd135ba
MA		 1153 /* Viterbi Check */
1154 if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1155 /* Error Rate */
1156 *ber *= 9766;
1157 /* ber = ber * 10 ^ 7 */
1158 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1159 *ber /= 8;
1160 }
1161 }
1162 break;
3f400925 1163 case SYS_DVBS2:
8bd135ba 1164 if (internal->lock) {
fdaaee6c
KS		 1165 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1166 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1167 *ber = MAKEWORD16(msb, lsb);
8bd135ba
MA		 1168 /* ber = ber * 10 ^ 7 */
1169 *ber *= 10000000;
1170 *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1171 }
1172 break;
1173 default:
c615a27a 1174 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
417dd69d 1175 return -EINVAL;
8bd135ba
MA		 1176 }
1177
1178 return 0;
1179}
1180
1181static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1182{
1183 struct stb0899_state *state = fe->demodulator_priv;
1184
1185 switch (voltage) {
1186 case SEC_VOLTAGE_13:
1187 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1188 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1189 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1190 break;
1191 case SEC_VOLTAGE_18:
1192 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1193 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1194 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1195 break;
1196 case SEC_VOLTAGE_OFF:
1197 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1198 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1199 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1200 break;
1201 default:
1202 return -EINVAL;
1203 }
1204
1205 return 0;
1206}
1207
1208static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1209{
1210 struct stb0899_state *state = fe->demodulator_priv;
1211 struct stb0899_internal *internal = &state->internal;
1212
baa40e48 1213 u8 div, reg;
8bd135ba
MA		 1214
1215 /* wait for diseqc idle */
1216 if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1217 return -ETIMEDOUT;
1218
1219 switch (tone) {
1220 case SEC_TONE_ON:
1221 div = (internal->master_clk / 100) / 5632;
1222 div = (div + 5) / 10;
1223 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
baa40e48
MA		 1224 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1225 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1226 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
8bd135ba
MA		 1227 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1228 break;
1229 case SEC_TONE_OFF:
1230 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1231 break;
1232 default:
417dd69d 1233 return -EINVAL;
8bd135ba
MA		 1234 }
1235 return 0;
1236}
1237
40e8ce3d 1238int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
8bd135ba
MA		 1239{
1240 int i2c_stat;
1241 struct stb0899_state *state = fe->demodulator_priv;
1242
1243 i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1244 if (i2c_stat < 0)
1245 goto err;
1246
1247 if (enable) {
1248 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1249 i2c_stat |= STB0899_I2CTON;
1250 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1251 goto err;
40e8ce3d
MA		 1252 } else {
1253 dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ...");
1254 i2c_stat &= ~STB0899_I2CTON;
1255 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1256 goto err;
8bd135ba
MA		 1257 }
1258 return 0;
1259err:
40e8ce3d 1260 dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed");
8bd135ba
MA		 1261 return -EREMOTEIO;
1262}
1263
1264
1265static inline void CONVERT32(u32 x, char *str)
1266{
1267 *str++ = (x >> 24) & 0xff;
1268 *str++ = (x >> 16) & 0xff;
1269 *str++ = (x >> 8) & 0xff;
1270 *str++ = (x >> 0) & 0xff;
1271 *str = '\0';
1272}
1273
5506bcba 1274static int stb0899_get_dev_id(struct stb0899_state *state)
8bd135ba
MA		 1275{
1276 u8 chip_id, release;
1277 u16 id;
1278 u32 demod_ver = 0, fec_ver = 0;
56137411
RN		 1279 char demod_str[5] = { 0 };
1280 char fec_str[5] = { 0 };
8bd135ba
MA		 1281
1282 id = stb0899_read_reg(state, STB0899_DEV_ID);
1283 dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1284 chip_id = STB0899_GETFIELD(CHIP_ID, id);
1285 release = STB0899_GETFIELD(CHIP_REL, id);
1286
1287 dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1288 chip_id, release);
1289
1290 CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1291
1292 demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1293 dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1294 CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1295 fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1296 if (! (chip_id > 0)) {
1297 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1298
1299 return -ENODEV;
1300 }
1301 dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1302
1303 return 0;
1304}
1305
e399a789 1306static void stb0899_set_delivery(struct stb0899_state *state)
8bd135ba
MA		 1307{
1308 u8 reg;
1309 u8 stop_clk[2];
1310
1311 stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1312 stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1313
1314 switch (state->delsys) {
3f400925 1315 case SYS_DVBS:
c615a27a 1316 dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
8bd135ba
MA		 1317 /* FECM/Viterbi ON */
1318 reg = stb0899_read_reg(state, STB0899_FECM);
1319 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1320 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1321 stb0899_write_reg(state, STB0899_FECM, reg);
1322
1323 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1324 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1325 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1326 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1327
1328 reg = stb0899_read_reg(state, STB0899_TSTRES);
1329 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1330 stb0899_write_reg(state, STB0899_TSTRES, reg);
1331
1332 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1333 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1334 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1335
1336 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1337 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1338
1339 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
18527bee 1340 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
8bd135ba
MA		 1341
1342 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1343 break;
3f400925 1344 case SYS_DVBS2:
8bd135ba
MA		 1345 /* FECM/Viterbi OFF */
1346 reg = stb0899_read_reg(state, STB0899_FECM);
1347 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1348 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1349 stb0899_write_reg(state, STB0899_FECM, reg);
1350
1351 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1352 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1353 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1354 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1355
1356 reg = stb0899_read_reg(state, STB0899_TSTRES);
1357 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1358 stb0899_write_reg(state, STB0899_TSTRES, reg);
1359
1360 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1361 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1362 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1363
1364 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1365 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1366
1367 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1368 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1369
1370 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1371 break;
3f400925 1372 case SYS_DSS:
8bd135ba
MA		 1373 /* FECM/Viterbi ON */
1374 reg = stb0899_read_reg(state, STB0899_FECM);
1375 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1376 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1377 stb0899_write_reg(state, STB0899_FECM, reg);
1378
1379 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1380 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1381 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1382
1383 reg = stb0899_read_reg(state, STB0899_TSTRES);
1384 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1385 stb0899_write_reg(state, STB0899_TSTRES, reg);
1386
1387 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1388 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1389 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1390
1391 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1392 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1393
1394 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1395
1396 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1397 break;
1398 default:
c615a27a 1399 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
8bd135ba
MA		 1400 break;
1401 }
1402 STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1403 stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1404}
1405
1406/*
1407 * stb0899_set_iterations
1408 * set the LDPC iteration scale function
1409 */
1410static void stb0899_set_iterations(struct stb0899_state *state)
1411{
1412 struct stb0899_internal *internal = &state->internal;
1413 struct stb0899_config *config = state->config;
1414
1415 s32 iter_scale;
1416 u32 reg;
1417
1418 iter_scale = 17 * (internal->master_clk / 1000);
1419 iter_scale += 410000;
1420 iter_scale /= (internal->srate / 1000000);
1421 iter_scale /= 1000;
1422
1423 if (iter_scale > config->ldpc_max_iter)
1424 iter_scale = config->ldpc_max_iter;
1425
699cc196 1426 reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
8bd135ba 1427 STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
699cc196 1428 stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
8bd135ba
MA		 1429}
1430
41da5320 1431static enum dvbfe_search stb0899_search(struct dvb_frontend *fe)
8bd135ba
MA		 1432{
1433 struct stb0899_state *state = fe->demodulator_priv;
1434 struct stb0899_params *i_params = &state->params;
1435 struct stb0899_internal *internal = &state->internal;
b91a7cb0 1436 struct stb0899_config *config = state->config;
3f400925 1437 struct dtv_frontend_properties *props = &fe->dtv_property_cache;
8bd135ba
MA		 1438
1439 u32 SearchRange, gain;
1440
41da5320
MCC		 1441 i_params->freq = props->frequency;
1442 i_params->srate = props->symbol_rate;
3f400925 1443 state->delsys = props->delivery_system;
c615a27a 1444 dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
8bd135ba 1445
763fbaf6 1446 SearchRange = 10000000;
c615a27a 1447 dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
8bd135ba
MA		 1448 /* checking Search Range is meaningless for a fixed 3 Mhz */
1449 if (INRANGE(i_params->srate, 1000000, 45000000)) {
c615a27a 1450 dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE");
e399a789 1451 stb0899_set_delivery(state);
8bd135ba
MA		 1452
1453 if (state->config->tuner_set_rfsiggain) {
1454 if (internal->srate > 15000000)
3f400925 1455 gain = 8; /* 15Mb < srate < 45Mb, gain = 8dB */
8bd135ba 1456 else if (internal->srate > 5000000)
3f400925 1457 gain = 12; /* 5Mb < srate < 15Mb, gain = 12dB */
8bd135ba 1458 else
3f400925 1459 gain = 14; /* 1Mb < srate < 5Mb, gain = 14db */
8bd135ba
MA		 1460 state->config->tuner_set_rfsiggain(fe, gain);
1461 }
1462
1463 if (i_params->srate <= 5000000)
b91a7cb0 1464 stb0899_set_mclk(state, config->lo_clk);
8bd135ba 1465 else
b91a7cb0 1466 stb0899_set_mclk(state, config->hi_clk);
8bd135ba
MA		 1467
1468 switch (state->delsys) {
3f400925
MA		 1469 case SYS_DVBS:
1470 case SYS_DSS:
c615a27a 1471 dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system");
8bd135ba
MA		 1472 internal->freq = i_params->freq;
1473 internal->srate = i_params->srate;
1474 /*
1475 * search = user search range +
1476 * 500Khz +
1477 * 2 * Tuner_step_size +
1478 * 10% of the symbol rate
1479 */
1480 internal->srch_range = SearchRange + 1500000 + (i_params->srate / 5);
1481 internal->derot_percent = 30;
1482
1483 /* What to do for tuners having no bandwidth setup ? */
40e8ce3d
MA		 1484 /* enable tuner I/O */
1485 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1486
8bd135ba 1487 if (state->config->tuner_set_bandwidth)
02ec9d8f 1488 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
8bd135ba
MA		 1489 if (state->config->tuner_get_bandwidth)
1490 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
40e8ce3d
MA		 1491
1492 /* disable tuner I/O */
1493 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1494
8bd135ba
MA		 1495 /* Set DVB-S1 AGC */
1496 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1497
1498 /* Run the search algorithm */
c615a27a 1499 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
8bd135ba
MA		 1500 if (stb0899_dvbs_algo(state) == RANGEOK) {
1501 internal->lock = 1;
c615a27a 1502 dprintk(state->verbose, FE_DEBUG, 1,
8bd135ba
MA		 1503 "-------------------------------------> DVB-S LOCK !");
1504
1505// stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors */
1506// internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1507// internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
c615a27a
RN		 1508// dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1509// dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
8bd135ba
MA		 1510
1511 return DVBFE_ALGO_SEARCH_SUCCESS;
1512 } else {
1513 internal->lock = 0;
1514
1515 return DVBFE_ALGO_SEARCH_FAILED;
1516 }
1517 break;
3f400925 1518 case SYS_DVBS2:
8bd135ba
MA		 1519 internal->freq = i_params->freq;
1520 internal->srate = i_params->srate;
1521 internal->srch_range = SearchRange;
1522
40e8ce3d
MA		 1523 /* enable tuner I/O */
1524 stb0899_i2c_gate_ctrl(&state->frontend, 1);
1525
8bd135ba 1526 if (state->config->tuner_set_bandwidth)
763fbaf6 1527 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
8bd135ba
MA		 1528 if (state->config->tuner_get_bandwidth)
1529 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1530
40e8ce3d
MA		 1531 /* disable tuner I/O */
1532 stb0899_i2c_gate_ctrl(&state->frontend, 0);
1533
8bd135ba
MA		 1534// pParams->SpectralInv = pSearch->IQ_Inversion;
1535
1536 /* Set DVB-S2 AGC */
1537 stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1538
1539 /* Set IterScale =f(MCLK,SYMB) */
1540 stb0899_set_iterations(state);
1541
1542 /* Run the search algorithm */
c615a27a 1543 dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
8bd135ba
MA		 1544 if (stb0899_dvbs2_algo(state) == DVBS2_FEC_LOCK) {
1545 internal->lock = 1;
c615a27a 1546 dprintk(state->verbose, FE_DEBUG, 1,
8bd135ba
MA		 1547 "-------------------------------------> DVB-S2 LOCK !");
1548
1549// stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors */
1550// internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1551// internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1552
1553 return DVBFE_ALGO_SEARCH_SUCCESS;
1554 } else {
1555 internal->lock = 0;
1556
1557 return DVBFE_ALGO_SEARCH_FAILED;
1558 }
1559 break;
1560 default:
c615a27a 1561 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
8bd135ba
MA		 1562 return DVBFE_ALGO_SEARCH_INVALID;
1563 }
1564 }
1565
1566 return DVBFE_ALGO_SEARCH_ERROR;
1567}
8bd135ba 1568
7c61d80a 1569static int stb0899_get_frontend(struct dvb_frontend *fe)
8bd135ba 1570{
7c61d80a 1571 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
8bd135ba
MA		 1572 struct stb0899_state *state = fe->demodulator_priv;
1573 struct stb0899_internal *internal = &state->internal;
1574
3f400925 1575 dprintk(state->verbose, FE_DEBUG, 1, "Get params");
5715836f 1576 p->symbol_rate = internal->srate;
226143f9 1577 p->frequency = internal->freq;
8bd135ba
MA		 1578
1579 return 0;
1580}
1581
1582static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1583{
1584 return DVBFE_ALGO_CUSTOM;
1585}
1586
1587static struct dvb_frontend_ops stb0899_ops = {
7581e61d 1588 .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
8bd135ba 1589 .info = {
3f400925 1590 .name = "STB0899 Multistandard",
3f400925
MA		 1591 .frequency_min = 950000,
1592 .frequency_max = 2150000,
1593 .frequency_stepsize = 0,
1594 .frequency_tolerance = 0,
07ecbf24 1595 .symbol_rate_min = 5000000,
3f400925
MA		 1596 .symbol_rate_max = 45000000,
1597
1598 .caps = FE_CAN_INVERSION_AUTO |
1599 FE_CAN_FEC_AUTO |
faed4aa5 1600 FE_CAN_2G_MODULATION |
3f400925 1601 FE_CAN_QPSK
8bd135ba
MA		 1602 },
1603
1604 .release = stb0899_release,
1605 .init = stb0899_init,
1606 .sleep = stb0899_sleep,
1607// .wakeup = stb0899_wakeup,
1608
1609 .i2c_gate_ctrl = stb0899_i2c_gate_ctrl,
8bd135ba
MA		 1610
1611 .get_frontend_algo = stb0899_frontend_algo,
1612 .search = stb0899_search,
5715836f 1613 .get_frontend = stb0899_get_frontend,
3f400925 1614
8bd135ba
MA		 1615
1616 .read_status = stb0899_read_status,
1617 .read_snr = stb0899_read_snr,
1618 .read_signal_strength = stb0899_read_signal_strength,
8bd135ba
MA		 1619 .read_ber = stb0899_read_ber,
1620
1621 .set_voltage = stb0899_set_voltage,
1622 .set_tone = stb0899_set_tone,
1623
1624 .diseqc_send_master_cmd = stb0899_send_diseqc_msg,
1625 .diseqc_recv_slave_reply = stb0899_recv_slave_reply,
1626 .diseqc_send_burst = stb0899_send_diseqc_burst,
1627};
1628
1629struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1630{
1631 struct stb0899_state *state = NULL;
1632
1633 state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1634 if (state == NULL)
1635 goto error;
1636
c615a27a 1637 state->verbose = &verbose;
8bd135ba
MA		 1638 state->config = config;
1639 state->i2c = i2c;
1640 state->frontend.ops = stb0899_ops;
1641 state->frontend.demodulator_priv = state;
0c1d2b14
RN		 1642 /* use configured inversion as default -- we'll later autodetect inversion */
1643 state->internal.inversion = config->inversion;
8bd135ba
MA		 1644
1645 stb0899_wakeup(&state->frontend);
1646 if (stb0899_get_dev_id(state) == -ENODEV) {
1647 printk("%s: Exiting .. !\n", __func__);
1648 goto error;
1649 }
1650
1651 printk("%s: Attaching STB0899 \n", __func__);
1652 return &state->frontend;
1653
1654error:
1655 kfree(state);
1656 return NULL;
1657}
1658EXPORT_SYMBOL(stb0899_attach);
1659MODULE_PARM_DESC(verbose, "Set Verbosity level");
1660MODULE_AUTHOR("Manu Abraham");
1661MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1662MODULE_LICENSE("GPL");
ubuntu-bionic-kernel mirror