1 /*
2  * stv0900_priv.h
3  *
4  * Driver for ST STV0900 satellite demodulator IC.
5  *
6  * Copyright (C) ST Microelectronics.
7  * Copyright (C) 2009 NetUP Inc.
8  * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *
19  * GNU General Public License for more details.
20  */
21 
22 #ifndef STV0900_PRIV_H
23 #define STV0900_PRIV_H
24 
25 #include <linux/i2c.h>
26 
27 #define INRANGE(X, Y, Z) ((((X) <= (Y)) && ((Y) <= (Z))) \
28 		|| (((Z) <= (Y)) && ((Y) <= (X))) ? 1 : 0)
29 
30 #ifndef MAKEWORD
31 #define MAKEWORD(X, Y) (((X) << 8) + (Y))
32 #endif
33 
34 #define LSB(X) (((X) & 0xFF))
35 #define MSB(Y) (((Y) >> 8) & 0xFF)
36 
37 #ifndef TRUE
38 #define TRUE (1 == 1)
39 #endif
40 #ifndef FALSE
41 #define FALSE (!TRUE)
42 #endif
43 
44 #define dprintk(args...) \
45 	do { \
46 		if (stvdebug) \
47 			printk(KERN_DEBUG args); \
48 	} while (0)
49 
50 #define STV0900_MAXLOOKUPSIZE 500
51 #define STV0900_BLIND_SEARCH_AGC2_TH 700
52 #define STV0900_BLIND_SEARCH_AGC2_TH_CUT30 1400
53 #define IQPOWER_THRESHOLD  30
54 
55 /* One point of the lookup table */
56 struct stv000_lookpoint {
57 	s32 realval;/* real value */
58 	s32 regval;/* binary value */
59 };
60 
61 /* Lookup table definition */
62 struct stv0900_table{
63 	s32 size;/* Size of the lookup table */
64 	struct stv000_lookpoint table[STV0900_MAXLOOKUPSIZE];/* Lookup table */
65 };
66 
67 enum fe_stv0900_error {
68 	STV0900_NO_ERROR = 0,
69 	STV0900_INVALID_HANDLE,
70 	STV0900_BAD_PARAMETER,
71 	STV0900_I2C_ERROR,
72 	STV0900_SEARCH_FAILED,
73 };
74 
75 enum fe_stv0900_clock_type {
76 	STV0900_USE_REGISTERS_DEFAULT,
77 	STV0900_SERIAL_PUNCT_CLOCK,/*Serial punctured clock */
78 	STV0900_SERIAL_CONT_CLOCK,/*Serial continues clock */
79 	STV0900_PARALLEL_PUNCT_CLOCK,/*Parallel punctured clock */
80 	STV0900_DVBCI_CLOCK/*Parallel continues clock : DVBCI */
81 };
82 
83 enum fe_stv0900_search_state {
84 	STV0900_SEARCH = 0,
85 	STV0900_PLH_DETECTED,
86 	STV0900_DVBS2_FOUND,
87 	STV0900_DVBS_FOUND
88 
89 };
90 
91 enum fe_stv0900_ldpc_state {
92 	STV0900_PATH1_OFF_PATH2_OFF = 0,
93 	STV0900_PATH1_ON_PATH2_OFF = 1,
94 	STV0900_PATH1_OFF_PATH2_ON = 2,
95 	STV0900_PATH1_ON_PATH2_ON = 3
96 };
97 
98 enum fe_stv0900_signal_type {
99 	STV0900_NOAGC1 = 0,
100 	STV0900_AGC1OK,
101 	STV0900_NOTIMING,
102 	STV0900_ANALOGCARRIER,
103 	STV0900_TIMINGOK,
104 	STV0900_NOAGC2,
105 	STV0900_AGC2OK,
106 	STV0900_NOCARRIER,
107 	STV0900_CARRIEROK,
108 	STV0900_NODATA,
109 	STV0900_DATAOK,
110 	STV0900_OUTOFRANGE,
111 	STV0900_RANGEOK
112 };
113 
114 enum fe_stv0900_demod_num {
115 	STV0900_DEMOD_1,
116 	STV0900_DEMOD_2
117 };
118 
119 enum fe_stv0900_tracking_standard {
120 	STV0900_DVBS1_STANDARD,/* Found Standard*/
121 	STV0900_DVBS2_STANDARD,
122 	STV0900_DSS_STANDARD,
123 	STV0900_TURBOCODE_STANDARD,
124 	STV0900_UNKNOWN_STANDARD
125 };
126 
127 enum fe_stv0900_search_standard {
128 	STV0900_AUTO_SEARCH,
129 	STV0900_SEARCH_DVBS1,/* Search Standard*/
130 	STV0900_SEARCH_DVBS2,
131 	STV0900_SEARCH_DSS,
132 	STV0900_SEARCH_TURBOCODE
133 };
134 
135 enum fe_stv0900_search_algo {
136 	STV0900_BLIND_SEARCH,/* offset freq and SR are Unknown */
137 	STV0900_COLD_START,/* only the SR is known */
138 	STV0900_WARM_START/* offset freq and SR are known */
139 };
140 
141 enum fe_stv0900_modulation {
142 	STV0900_QPSK,
143 	STV0900_8PSK,
144 	STV0900_16APSK,
145 	STV0900_32APSK,
146 	STV0900_UNKNOWN
147 };
148 
149 enum fe_stv0900_modcode {
150 	STV0900_DUMMY_PLF,
151 	STV0900_QPSK_14,
152 	STV0900_QPSK_13,
153 	STV0900_QPSK_25,
154 	STV0900_QPSK_12,
155 	STV0900_QPSK_35,
156 	STV0900_QPSK_23,
157 	STV0900_QPSK_34,
158 	STV0900_QPSK_45,
159 	STV0900_QPSK_56,
160 	STV0900_QPSK_89,
161 	STV0900_QPSK_910,
162 	STV0900_8PSK_35,
163 	STV0900_8PSK_23,
164 	STV0900_8PSK_34,
165 	STV0900_8PSK_56,
166 	STV0900_8PSK_89,
167 	STV0900_8PSK_910,
168 	STV0900_16APSK_23,
169 	STV0900_16APSK_34,
170 	STV0900_16APSK_45,
171 	STV0900_16APSK_56,
172 	STV0900_16APSK_89,
173 	STV0900_16APSK_910,
174 	STV0900_32APSK_34,
175 	STV0900_32APSK_45,
176 	STV0900_32APSK_56,
177 	STV0900_32APSK_89,
178 	STV0900_32APSK_910,
179 	STV0900_MODCODE_UNKNOWN
180 };
181 
182 enum fe_stv0900_fec {/*DVBS1, DSS and turbo code puncture rate*/
183 	STV0900_FEC_1_2 = 0,
184 	STV0900_FEC_2_3,
185 	STV0900_FEC_3_4,
186 	STV0900_FEC_4_5,/*for turbo code only*/
187 	STV0900_FEC_5_6,
188 	STV0900_FEC_6_7,/*for DSS only */
189 	STV0900_FEC_7_8,
190 	STV0900_FEC_8_9,/*for turbo code only*/
191 	STV0900_FEC_UNKNOWN
192 };
193 
194 enum fe_stv0900_frame_length {
195 	STV0900_LONG_FRAME,
196 	STV0900_SHORT_FRAME
197 };
198 
199 enum fe_stv0900_pilot {
200 	STV0900_PILOTS_OFF,
201 	STV0900_PILOTS_ON
202 };
203 
204 enum fe_stv0900_rolloff {
205 	STV0900_35,
206 	STV0900_25,
207 	STV0900_20
208 };
209 
210 enum fe_stv0900_search_iq {
211 	STV0900_IQ_AUTO,
212 	STV0900_IQ_AUTO_NORMAL_FIRST,
213 	STV0900_IQ_FORCE_NORMAL,
214 	STV0900_IQ_FORCE_SWAPPED
215 };
216 
217 enum stv0900_iq_inversion {
218 	STV0900_IQ_NORMAL,
219 	STV0900_IQ_SWAPPED
220 };
221 
222 enum fe_stv0900_diseqc_mode {
223 	STV0900_22KHZ_Continues = 0,
224 	STV0900_DISEQC_2_3_PWM = 2,
225 	STV0900_DISEQC_3_3_PWM = 3,
226 	STV0900_DISEQC_2_3_ENVELOP = 4,
227 	STV0900_DISEQC_3_3_ENVELOP = 5
228 };
229 
230 enum fe_stv0900_demod_mode {
231 	STV0900_SINGLE = 0,
232 	STV0900_DUAL
233 };
234 
235 struct stv0900_init_params{
236 	u32	dmd_ref_clk;/* Reference,Input clock for the demod in Hz */
237 
238 	/* Demodulator Type (single demod or dual demod) */
239 	enum fe_stv0900_demod_mode	demod_mode;
240 	enum fe_stv0900_rolloff		rolloff;
241 	enum fe_stv0900_clock_type	path1_ts_clock;
242 
243 	u8	tun1_maddress;
244 	int	tuner1_adc;
245 	int	tuner1_type;
246 
247 	/* IQ from the tuner1 to the demod */
248 	enum stv0900_iq_inversion	tun1_iq_inv;
249 	enum fe_stv0900_clock_type	path2_ts_clock;
250 
251 	u8	tun2_maddress;
252 	int	tuner2_adc;
253 	int	tuner2_type;
254 
255 	/* IQ from the tuner2 to the demod */
256 	enum stv0900_iq_inversion	tun2_iq_inv;
257 	struct stv0900_reg		*ts_config;
258 };
259 
260 struct stv0900_search_params {
261 	enum fe_stv0900_demod_num	path;/* Path Used demod1 or 2 */
262 
263 	u32	frequency;/* Transponder frequency (in KHz) */
264 	u32	symbol_rate;/* Transponder symbol rate  (in bds)*/
265 	u32	search_range;/* Range of the search (in Hz) */
266 
267 	enum fe_stv0900_search_standard	standard;
268 	enum fe_stv0900_modulation	modulation;
269 	enum fe_stv0900_fec		fec;
270 	enum fe_stv0900_modcode		modcode;
271 	enum fe_stv0900_search_iq	iq_inversion;
272 	enum fe_stv0900_search_algo	search_algo;
273 
274 };
275 
276 struct stv0900_signal_info {
277 	int	locked;/* Transponder locked */
278 	u32	frequency;/* Transponder frequency (in KHz) */
279 	u32	symbol_rate;/* Transponder symbol rate  (in Mbds) */
280 
281 	enum fe_stv0900_tracking_standard	standard;
282 	enum fe_stv0900_fec			fec;
283 	enum fe_stv0900_modcode			modcode;
284 	enum fe_stv0900_modulation		modulation;
285 	enum fe_stv0900_pilot			pilot;
286 	enum fe_stv0900_frame_length		frame_len;
287 	enum stv0900_iq_inversion		spectrum;
288 	enum fe_stv0900_rolloff			rolloff;
289 
290 	s32 Power;/* Power of the RF signal (dBm) */
291 	s32 C_N;/* Carrier to noise ratio (dB x10)*/
292 	u32 BER;/* Bit error rate (x10^7) */
293 
294 };
295 
296 struct stv0900_internal{
297 	s32	quartz;
298 	s32	mclk;
299 	/* manual RollOff for DVBS1/DSS only */
300 	enum fe_stv0900_rolloff		rolloff;
301 	/* Demodulator use for single demod or for dual demod) */
302 	enum fe_stv0900_demod_mode	demod_mode;
303 
304 	/*Demods */
305 	s32	freq[2];
306 	s32	bw[2];
307 	s32	symbol_rate[2];
308 	s32	srch_range[2];
309 	/* for software/auto tuner */
310 	int	tuner_type[2];
311 
312 	/* algorithm for search Blind, Cold or Warm*/
313 	enum fe_stv0900_search_algo	srch_algo[2];
314 	/* search standard: Auto, DVBS1/DSS only or DVBS2 only*/
315 	enum fe_stv0900_search_standard	srch_standard[2];
316 	/* inversion search : auto, auto norma first, normal or inverted */
317 	enum fe_stv0900_search_iq	srch_iq_inv[2];
318 	enum fe_stv0900_modcode		modcode[2];
319 	enum fe_stv0900_modulation	modulation[2];
320 	enum fe_stv0900_fec		fec[2];
321 
322 	struct stv0900_signal_info	result[2];
323 	enum fe_stv0900_error		err[2];
324 
325 
326 	struct i2c_adapter	*i2c_adap;
327 	u8			i2c_addr;
328 	u8			clkmode;/* 0 for CLKI, 2 for XTALI */
329 	u8			chip_id;
330 	struct stv0900_reg	*ts_config;
331 	enum fe_stv0900_error	errs;
332 	int dmds_used;
333 };
334 
335 /* state for each demod */
336 struct stv0900_state {
337 	/* pointer for internal params, one for each pair of demods */
338 	struct stv0900_internal		*internal;
339 	struct i2c_adapter		*i2c_adap;
340 	const struct stv0900_config	*config;
341 	struct dvb_frontend		frontend;
342 	int demod;
343 };
344 
345 extern int stvdebug;
346 
347 extern s32 ge2comp(s32 a, s32 width);
348 
349 extern void stv0900_write_reg(struct stv0900_internal *i_params,
350 				u16 reg_addr, u8 reg_data);
351 
352 extern u8 stv0900_read_reg(struct stv0900_internal *i_params,
353 				u16 reg_addr);
354 
355 extern void stv0900_write_bits(struct stv0900_internal *i_params,
356 				u32 label, u8 val);
357 
358 extern u8 stv0900_get_bits(struct stv0900_internal *i_params,
359 				u32 label);
360 
361 extern int stv0900_get_demod_lock(struct stv0900_internal *i_params,
362 				enum fe_stv0900_demod_num demod, s32 time_out);
363 extern int stv0900_check_signal_presence(struct stv0900_internal *i_params,
364 				enum fe_stv0900_demod_num demod);
365 
366 extern enum fe_stv0900_signal_type stv0900_algo(struct dvb_frontend *fe);
367 
368 extern void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency,
369 				u32 bandwidth);
370 extern void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth);
371 
372 extern void stv0900_start_search(struct stv0900_internal *i_params,
373 				enum fe_stv0900_demod_num demod);
374 
375 extern u8 stv0900_get_optim_carr_loop(s32 srate,
376 				enum fe_stv0900_modcode modcode,
377 				s32 pilot, u8 chip_id);
378 
379 extern u8 stv0900_get_optim_short_carr_loop(s32 srate,
380 				enum fe_stv0900_modulation modulation,
381 				u8 chip_id);
382 
383 extern void stv0900_stop_all_s2_modcod(struct stv0900_internal *i_params,
384 				enum fe_stv0900_demod_num demod);
385 
386 extern void stv0900_activate_s2_modcod(struct stv0900_internal *i_params,
387 				enum fe_stv0900_demod_num demod);
388 
389 extern void stv0900_activate_s2_modcod_single(struct stv0900_internal *i_params,
390 				enum fe_stv0900_demod_num demod);
391 
392 extern enum
393 fe_stv0900_tracking_standard stv0900_get_standard(struct dvb_frontend *fe,
394 				enum fe_stv0900_demod_num demod);
395 
396 extern u32
397 stv0900_get_freq_auto(struct stv0900_internal *intp, int demod);
398 
399 extern void
400 stv0900_set_tuner_auto(struct stv0900_internal *intp, u32 Frequency,
401 						u32 Bandwidth, int demod);
402 
403 #endif
404