174ba9207SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
29a0bf528SMauro Carvalho Chehab /*
39a0bf528SMauro Carvalho Chehab Auvitek AU8522 QAM/8VSB demodulator driver
49a0bf528SMauro Carvalho Chehab
59a0bf528SMauro Carvalho Chehab Copyright (C) 2008 Steven Toth <stoth@linuxtv.org>
69a0bf528SMauro Carvalho Chehab
79a0bf528SMauro Carvalho Chehab
89a0bf528SMauro Carvalho Chehab */
99a0bf528SMauro Carvalho Chehab
109a0bf528SMauro Carvalho Chehab #include <linux/kernel.h>
119a0bf528SMauro Carvalho Chehab #include <linux/init.h>
129a0bf528SMauro Carvalho Chehab #include <linux/module.h>
139a0bf528SMauro Carvalho Chehab #include <linux/string.h>
149a0bf528SMauro Carvalho Chehab #include <linux/delay.h>
15fada1935SMauro Carvalho Chehab #include <media/dvb_frontend.h>
169a0bf528SMauro Carvalho Chehab #include "au8522.h"
179a0bf528SMauro Carvalho Chehab #include "au8522_priv.h"
189a0bf528SMauro Carvalho Chehab
199a0bf528SMauro Carvalho Chehab static int debug;
20dcc33cc5SRichard Vollkommer static int zv_mode = 1; /* default to on */
219a0bf528SMauro Carvalho Chehab
229a0bf528SMauro Carvalho Chehab #define dprintk(arg...)\
239a0bf528SMauro Carvalho Chehab do { if (debug)\
249a0bf528SMauro Carvalho Chehab printk(arg);\
259a0bf528SMauro Carvalho Chehab } while (0)
269a0bf528SMauro Carvalho Chehab
279a0bf528SMauro Carvalho Chehab struct mse2snr_tab {
289a0bf528SMauro Carvalho Chehab u16 val;
299a0bf528SMauro Carvalho Chehab u16 data;
309a0bf528SMauro Carvalho Chehab };
319a0bf528SMauro Carvalho Chehab
329a0bf528SMauro Carvalho Chehab /* VSB SNR lookup table */
339a0bf528SMauro Carvalho Chehab static struct mse2snr_tab vsb_mse2snr_tab[] = {
349a0bf528SMauro Carvalho Chehab { 0, 270 },
359a0bf528SMauro Carvalho Chehab { 2, 250 },
369a0bf528SMauro Carvalho Chehab { 3, 240 },
379a0bf528SMauro Carvalho Chehab { 5, 230 },
389a0bf528SMauro Carvalho Chehab { 7, 220 },
399a0bf528SMauro Carvalho Chehab { 9, 210 },
409a0bf528SMauro Carvalho Chehab { 12, 200 },
419a0bf528SMauro Carvalho Chehab { 13, 195 },
429a0bf528SMauro Carvalho Chehab { 15, 190 },
439a0bf528SMauro Carvalho Chehab { 17, 185 },
449a0bf528SMauro Carvalho Chehab { 19, 180 },
459a0bf528SMauro Carvalho Chehab { 21, 175 },
469a0bf528SMauro Carvalho Chehab { 24, 170 },
479a0bf528SMauro Carvalho Chehab { 27, 165 },
489a0bf528SMauro Carvalho Chehab { 31, 160 },
499a0bf528SMauro Carvalho Chehab { 32, 158 },
509a0bf528SMauro Carvalho Chehab { 33, 156 },
519a0bf528SMauro Carvalho Chehab { 36, 152 },
529a0bf528SMauro Carvalho Chehab { 37, 150 },
539a0bf528SMauro Carvalho Chehab { 39, 148 },
549a0bf528SMauro Carvalho Chehab { 40, 146 },
559a0bf528SMauro Carvalho Chehab { 41, 144 },
569a0bf528SMauro Carvalho Chehab { 43, 142 },
579a0bf528SMauro Carvalho Chehab { 44, 140 },
589a0bf528SMauro Carvalho Chehab { 48, 135 },
599a0bf528SMauro Carvalho Chehab { 50, 130 },
609a0bf528SMauro Carvalho Chehab { 43, 142 },
619a0bf528SMauro Carvalho Chehab { 53, 125 },
629a0bf528SMauro Carvalho Chehab { 56, 120 },
639a0bf528SMauro Carvalho Chehab { 256, 115 },
649a0bf528SMauro Carvalho Chehab };
659a0bf528SMauro Carvalho Chehab
669a0bf528SMauro Carvalho Chehab /* QAM64 SNR lookup table */
679a0bf528SMauro Carvalho Chehab static struct mse2snr_tab qam64_mse2snr_tab[] = {
689a0bf528SMauro Carvalho Chehab { 15, 0 },
699a0bf528SMauro Carvalho Chehab { 16, 290 },
709a0bf528SMauro Carvalho Chehab { 17, 288 },
719a0bf528SMauro Carvalho Chehab { 18, 286 },
729a0bf528SMauro Carvalho Chehab { 19, 284 },
739a0bf528SMauro Carvalho Chehab { 20, 282 },
749a0bf528SMauro Carvalho Chehab { 21, 281 },
759a0bf528SMauro Carvalho Chehab { 22, 279 },
769a0bf528SMauro Carvalho Chehab { 23, 277 },
779a0bf528SMauro Carvalho Chehab { 24, 275 },
789a0bf528SMauro Carvalho Chehab { 25, 273 },
799a0bf528SMauro Carvalho Chehab { 26, 271 },
809a0bf528SMauro Carvalho Chehab { 27, 269 },
819a0bf528SMauro Carvalho Chehab { 28, 268 },
829a0bf528SMauro Carvalho Chehab { 29, 266 },
839a0bf528SMauro Carvalho Chehab { 30, 264 },
849a0bf528SMauro Carvalho Chehab { 31, 262 },
859a0bf528SMauro Carvalho Chehab { 32, 260 },
869a0bf528SMauro Carvalho Chehab { 33, 259 },
879a0bf528SMauro Carvalho Chehab { 34, 258 },
889a0bf528SMauro Carvalho Chehab { 35, 256 },
899a0bf528SMauro Carvalho Chehab { 36, 255 },
909a0bf528SMauro Carvalho Chehab { 37, 254 },
919a0bf528SMauro Carvalho Chehab { 38, 252 },
929a0bf528SMauro Carvalho Chehab { 39, 251 },
939a0bf528SMauro Carvalho Chehab { 40, 250 },
949a0bf528SMauro Carvalho Chehab { 41, 249 },
959a0bf528SMauro Carvalho Chehab { 42, 248 },
969a0bf528SMauro Carvalho Chehab { 43, 246 },
979a0bf528SMauro Carvalho Chehab { 44, 245 },
989a0bf528SMauro Carvalho Chehab { 45, 244 },
999a0bf528SMauro Carvalho Chehab { 46, 242 },
1009a0bf528SMauro Carvalho Chehab { 47, 241 },
1019a0bf528SMauro Carvalho Chehab { 48, 240 },
1029a0bf528SMauro Carvalho Chehab { 50, 239 },
1039a0bf528SMauro Carvalho Chehab { 51, 238 },
1049a0bf528SMauro Carvalho Chehab { 53, 237 },
1059a0bf528SMauro Carvalho Chehab { 54, 236 },
1069a0bf528SMauro Carvalho Chehab { 56, 235 },
1079a0bf528SMauro Carvalho Chehab { 57, 234 },
1089a0bf528SMauro Carvalho Chehab { 59, 233 },
1099a0bf528SMauro Carvalho Chehab { 60, 232 },
1109a0bf528SMauro Carvalho Chehab { 62, 231 },
1119a0bf528SMauro Carvalho Chehab { 63, 230 },
1129a0bf528SMauro Carvalho Chehab { 65, 229 },
1139a0bf528SMauro Carvalho Chehab { 67, 228 },
1149a0bf528SMauro Carvalho Chehab { 68, 227 },
1159a0bf528SMauro Carvalho Chehab { 70, 226 },
1169a0bf528SMauro Carvalho Chehab { 71, 225 },
1179a0bf528SMauro Carvalho Chehab { 73, 224 },
1189a0bf528SMauro Carvalho Chehab { 74, 223 },
1199a0bf528SMauro Carvalho Chehab { 76, 222 },
1209a0bf528SMauro Carvalho Chehab { 78, 221 },
1219a0bf528SMauro Carvalho Chehab { 80, 220 },
1229a0bf528SMauro Carvalho Chehab { 82, 219 },
1239a0bf528SMauro Carvalho Chehab { 85, 218 },
1249a0bf528SMauro Carvalho Chehab { 88, 217 },
1259a0bf528SMauro Carvalho Chehab { 90, 216 },
1269a0bf528SMauro Carvalho Chehab { 92, 215 },
1279a0bf528SMauro Carvalho Chehab { 93, 214 },
1289a0bf528SMauro Carvalho Chehab { 94, 212 },
1299a0bf528SMauro Carvalho Chehab { 95, 211 },
1309a0bf528SMauro Carvalho Chehab { 97, 210 },
1319a0bf528SMauro Carvalho Chehab { 99, 209 },
1329a0bf528SMauro Carvalho Chehab { 101, 208 },
1339a0bf528SMauro Carvalho Chehab { 102, 207 },
1349a0bf528SMauro Carvalho Chehab { 104, 206 },
1359a0bf528SMauro Carvalho Chehab { 107, 205 },
1369a0bf528SMauro Carvalho Chehab { 111, 204 },
1379a0bf528SMauro Carvalho Chehab { 114, 203 },
1389a0bf528SMauro Carvalho Chehab { 118, 202 },
1399a0bf528SMauro Carvalho Chehab { 122, 201 },
1409a0bf528SMauro Carvalho Chehab { 125, 200 },
1419a0bf528SMauro Carvalho Chehab { 128, 199 },
1429a0bf528SMauro Carvalho Chehab { 130, 198 },
1439a0bf528SMauro Carvalho Chehab { 132, 197 },
1449a0bf528SMauro Carvalho Chehab { 256, 190 },
1459a0bf528SMauro Carvalho Chehab };
1469a0bf528SMauro Carvalho Chehab
1479a0bf528SMauro Carvalho Chehab /* QAM256 SNR lookup table */
1489a0bf528SMauro Carvalho Chehab static struct mse2snr_tab qam256_mse2snr_tab[] = {
1499a0bf528SMauro Carvalho Chehab { 15, 0 },
1509a0bf528SMauro Carvalho Chehab { 16, 400 },
1519a0bf528SMauro Carvalho Chehab { 17, 398 },
1529a0bf528SMauro Carvalho Chehab { 18, 396 },
1539a0bf528SMauro Carvalho Chehab { 19, 394 },
1549a0bf528SMauro Carvalho Chehab { 20, 392 },
1559a0bf528SMauro Carvalho Chehab { 21, 390 },
1569a0bf528SMauro Carvalho Chehab { 22, 388 },
1579a0bf528SMauro Carvalho Chehab { 23, 386 },
1589a0bf528SMauro Carvalho Chehab { 24, 384 },
1599a0bf528SMauro Carvalho Chehab { 25, 382 },
1609a0bf528SMauro Carvalho Chehab { 26, 380 },
1619a0bf528SMauro Carvalho Chehab { 27, 379 },
1629a0bf528SMauro Carvalho Chehab { 28, 378 },
1639a0bf528SMauro Carvalho Chehab { 29, 377 },
1649a0bf528SMauro Carvalho Chehab { 30, 376 },
1659a0bf528SMauro Carvalho Chehab { 31, 375 },
1669a0bf528SMauro Carvalho Chehab { 32, 374 },
1679a0bf528SMauro Carvalho Chehab { 33, 373 },
1689a0bf528SMauro Carvalho Chehab { 34, 372 },
1699a0bf528SMauro Carvalho Chehab { 35, 371 },
1709a0bf528SMauro Carvalho Chehab { 36, 370 },
1719a0bf528SMauro Carvalho Chehab { 37, 362 },
1729a0bf528SMauro Carvalho Chehab { 38, 354 },
1739a0bf528SMauro Carvalho Chehab { 39, 346 },
1749a0bf528SMauro Carvalho Chehab { 40, 338 },
1759a0bf528SMauro Carvalho Chehab { 41, 330 },
1769a0bf528SMauro Carvalho Chehab { 42, 328 },
1779a0bf528SMauro Carvalho Chehab { 43, 326 },
1789a0bf528SMauro Carvalho Chehab { 44, 324 },
1799a0bf528SMauro Carvalho Chehab { 45, 322 },
1809a0bf528SMauro Carvalho Chehab { 46, 320 },
1819a0bf528SMauro Carvalho Chehab { 47, 319 },
1829a0bf528SMauro Carvalho Chehab { 48, 318 },
1839a0bf528SMauro Carvalho Chehab { 49, 317 },
1849a0bf528SMauro Carvalho Chehab { 50, 316 },
1859a0bf528SMauro Carvalho Chehab { 51, 315 },
1869a0bf528SMauro Carvalho Chehab { 52, 314 },
1879a0bf528SMauro Carvalho Chehab { 53, 313 },
1889a0bf528SMauro Carvalho Chehab { 54, 312 },
1899a0bf528SMauro Carvalho Chehab { 55, 311 },
1909a0bf528SMauro Carvalho Chehab { 56, 310 },
1919a0bf528SMauro Carvalho Chehab { 57, 308 },
1929a0bf528SMauro Carvalho Chehab { 58, 306 },
1939a0bf528SMauro Carvalho Chehab { 59, 304 },
1949a0bf528SMauro Carvalho Chehab { 60, 302 },
1959a0bf528SMauro Carvalho Chehab { 61, 300 },
1969a0bf528SMauro Carvalho Chehab { 62, 298 },
1979a0bf528SMauro Carvalho Chehab { 65, 295 },
1989a0bf528SMauro Carvalho Chehab { 68, 294 },
1999a0bf528SMauro Carvalho Chehab { 70, 293 },
2009a0bf528SMauro Carvalho Chehab { 73, 292 },
2019a0bf528SMauro Carvalho Chehab { 76, 291 },
2029a0bf528SMauro Carvalho Chehab { 78, 290 },
2039a0bf528SMauro Carvalho Chehab { 79, 289 },
2049a0bf528SMauro Carvalho Chehab { 81, 288 },
2059a0bf528SMauro Carvalho Chehab { 82, 287 },
2069a0bf528SMauro Carvalho Chehab { 83, 286 },
2079a0bf528SMauro Carvalho Chehab { 84, 285 },
2089a0bf528SMauro Carvalho Chehab { 85, 284 },
2099a0bf528SMauro Carvalho Chehab { 86, 283 },
2109a0bf528SMauro Carvalho Chehab { 88, 282 },
2119a0bf528SMauro Carvalho Chehab { 89, 281 },
2129a0bf528SMauro Carvalho Chehab { 256, 280 },
2139a0bf528SMauro Carvalho Chehab };
2149a0bf528SMauro Carvalho Chehab
au8522_mse2snr_lookup(struct mse2snr_tab * tab,int sz,int mse,u16 * snr)2159a0bf528SMauro Carvalho Chehab static int au8522_mse2snr_lookup(struct mse2snr_tab *tab, int sz, int mse,
2169a0bf528SMauro Carvalho Chehab u16 *snr)
2179a0bf528SMauro Carvalho Chehab {
2189a0bf528SMauro Carvalho Chehab int i, ret = -EINVAL;
2199a0bf528SMauro Carvalho Chehab dprintk("%s()\n", __func__);
2209a0bf528SMauro Carvalho Chehab
2219a0bf528SMauro Carvalho Chehab for (i = 0; i < sz; i++) {
2229a0bf528SMauro Carvalho Chehab if (mse < tab[i].val) {
2239a0bf528SMauro Carvalho Chehab *snr = tab[i].data;
2249a0bf528SMauro Carvalho Chehab ret = 0;
2259a0bf528SMauro Carvalho Chehab break;
2269a0bf528SMauro Carvalho Chehab }
2279a0bf528SMauro Carvalho Chehab }
2289a0bf528SMauro Carvalho Chehab dprintk("%s() snr=%d\n", __func__, *snr);
2299a0bf528SMauro Carvalho Chehab return ret;
2309a0bf528SMauro Carvalho Chehab }
2319a0bf528SMauro Carvalho Chehab
au8522_set_if(struct dvb_frontend * fe,enum au8522_if_freq if_freq)2329a0bf528SMauro Carvalho Chehab static int au8522_set_if(struct dvb_frontend *fe, enum au8522_if_freq if_freq)
2339a0bf528SMauro Carvalho Chehab {
2349a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
2359a0bf528SMauro Carvalho Chehab u8 r0b5, r0b6, r0b7;
2369a0bf528SMauro Carvalho Chehab char *ifmhz;
2379a0bf528SMauro Carvalho Chehab
2389a0bf528SMauro Carvalho Chehab switch (if_freq) {
2399a0bf528SMauro Carvalho Chehab case AU8522_IF_3_25MHZ:
2409a0bf528SMauro Carvalho Chehab ifmhz = "3.25";
2419a0bf528SMauro Carvalho Chehab r0b5 = 0x00;
2429a0bf528SMauro Carvalho Chehab r0b6 = 0x3d;
2439a0bf528SMauro Carvalho Chehab r0b7 = 0xa0;
2449a0bf528SMauro Carvalho Chehab break;
2459a0bf528SMauro Carvalho Chehab case AU8522_IF_4MHZ:
2469a0bf528SMauro Carvalho Chehab ifmhz = "4.00";
2479a0bf528SMauro Carvalho Chehab r0b5 = 0x00;
2489a0bf528SMauro Carvalho Chehab r0b6 = 0x4b;
2499a0bf528SMauro Carvalho Chehab r0b7 = 0xd9;
2509a0bf528SMauro Carvalho Chehab break;
2519a0bf528SMauro Carvalho Chehab case AU8522_IF_6MHZ:
2529a0bf528SMauro Carvalho Chehab ifmhz = "6.00";
2539a0bf528SMauro Carvalho Chehab r0b5 = 0xfb;
2549a0bf528SMauro Carvalho Chehab r0b6 = 0x8e;
2559a0bf528SMauro Carvalho Chehab r0b7 = 0x39;
2569a0bf528SMauro Carvalho Chehab break;
2579a0bf528SMauro Carvalho Chehab default:
2589a0bf528SMauro Carvalho Chehab dprintk("%s() IF Frequency not supported\n", __func__);
2599a0bf528SMauro Carvalho Chehab return -EINVAL;
2609a0bf528SMauro Carvalho Chehab }
2619a0bf528SMauro Carvalho Chehab dprintk("%s() %s MHz\n", __func__, ifmhz);
262d6f79a91SDevin Heitmueller au8522_writereg(state, 0x00b5, r0b5);
263d6f79a91SDevin Heitmueller au8522_writereg(state, 0x00b6, r0b6);
264d6f79a91SDevin Heitmueller au8522_writereg(state, 0x00b7, r0b7);
2659a0bf528SMauro Carvalho Chehab
2669a0bf528SMauro Carvalho Chehab return 0;
2679a0bf528SMauro Carvalho Chehab }
2689a0bf528SMauro Carvalho Chehab
2699a0bf528SMauro Carvalho Chehab /* VSB Modulation table */
2709a0bf528SMauro Carvalho Chehab static struct {
2719a0bf528SMauro Carvalho Chehab u16 reg;
2729a0bf528SMauro Carvalho Chehab u16 data;
2739a0bf528SMauro Carvalho Chehab } VSB_mod_tab[] = {
274d6f79a91SDevin Heitmueller { 0x0090, 0x84 },
2759a0bf528SMauro Carvalho Chehab { 0x2005, 0x00 },
276d6f79a91SDevin Heitmueller { 0x0091, 0x80 },
277d6f79a91SDevin Heitmueller { 0x00a3, 0x0c },
278d6f79a91SDevin Heitmueller { 0x00a4, 0xe8 },
279d6f79a91SDevin Heitmueller { 0x0081, 0xc4 },
280d6f79a91SDevin Heitmueller { 0x00a5, 0x40 },
281d6f79a91SDevin Heitmueller { 0x00a7, 0x40 },
282d6f79a91SDevin Heitmueller { 0x00a6, 0x67 },
283d6f79a91SDevin Heitmueller { 0x0262, 0x20 },
284d6f79a91SDevin Heitmueller { 0x021c, 0x30 },
285d6f79a91SDevin Heitmueller { 0x00d8, 0x1a },
286d6f79a91SDevin Heitmueller { 0x0227, 0xa0 },
287d6f79a91SDevin Heitmueller { 0x0121, 0xff },
288d6f79a91SDevin Heitmueller { 0x00a8, 0xf0 },
289d6f79a91SDevin Heitmueller { 0x00a9, 0x05 },
290d6f79a91SDevin Heitmueller { 0x00aa, 0x77 },
291d6f79a91SDevin Heitmueller { 0x00ab, 0xf0 },
292d6f79a91SDevin Heitmueller { 0x00ac, 0x05 },
293d6f79a91SDevin Heitmueller { 0x00ad, 0x77 },
294d6f79a91SDevin Heitmueller { 0x00ae, 0x41 },
295d6f79a91SDevin Heitmueller { 0x00af, 0x66 },
296d6f79a91SDevin Heitmueller { 0x021b, 0xcc },
297d6f79a91SDevin Heitmueller { 0x021d, 0x80 },
298d6f79a91SDevin Heitmueller { 0x00a4, 0xe8 },
299d6f79a91SDevin Heitmueller { 0x0231, 0x13 },
3009a0bf528SMauro Carvalho Chehab };
3019a0bf528SMauro Carvalho Chehab
3029a0bf528SMauro Carvalho Chehab /* QAM64 Modulation table */
3039a0bf528SMauro Carvalho Chehab static struct {
3049a0bf528SMauro Carvalho Chehab u16 reg;
3059a0bf528SMauro Carvalho Chehab u16 data;
3069a0bf528SMauro Carvalho Chehab } QAM64_mod_tab[] = {
3079a0bf528SMauro Carvalho Chehab { 0x00a3, 0x09 },
3089a0bf528SMauro Carvalho Chehab { 0x00a4, 0x00 },
3099a0bf528SMauro Carvalho Chehab { 0x0081, 0xc4 },
3109a0bf528SMauro Carvalho Chehab { 0x00a5, 0x40 },
3119a0bf528SMauro Carvalho Chehab { 0x00aa, 0x77 },
3129a0bf528SMauro Carvalho Chehab { 0x00ad, 0x77 },
3139a0bf528SMauro Carvalho Chehab { 0x00a6, 0x67 },
3149a0bf528SMauro Carvalho Chehab { 0x0262, 0x20 },
3159a0bf528SMauro Carvalho Chehab { 0x021c, 0x30 },
3169a0bf528SMauro Carvalho Chehab { 0x00b8, 0x3e },
3179a0bf528SMauro Carvalho Chehab { 0x00b9, 0xf0 },
3189a0bf528SMauro Carvalho Chehab { 0x00ba, 0x01 },
3199a0bf528SMauro Carvalho Chehab { 0x00bb, 0x18 },
3209a0bf528SMauro Carvalho Chehab { 0x00bc, 0x50 },
3219a0bf528SMauro Carvalho Chehab { 0x00bd, 0x00 },
3229a0bf528SMauro Carvalho Chehab { 0x00be, 0xea },
3239a0bf528SMauro Carvalho Chehab { 0x00bf, 0xef },
3249a0bf528SMauro Carvalho Chehab { 0x00c0, 0xfc },
3259a0bf528SMauro Carvalho Chehab { 0x00c1, 0xbd },
3269a0bf528SMauro Carvalho Chehab { 0x00c2, 0x1f },
3279a0bf528SMauro Carvalho Chehab { 0x00c3, 0xfc },
3289a0bf528SMauro Carvalho Chehab { 0x00c4, 0xdd },
3299a0bf528SMauro Carvalho Chehab { 0x00c5, 0xaf },
3309a0bf528SMauro Carvalho Chehab { 0x00c6, 0x00 },
3319a0bf528SMauro Carvalho Chehab { 0x00c7, 0x38 },
3329a0bf528SMauro Carvalho Chehab { 0x00c8, 0x30 },
3339a0bf528SMauro Carvalho Chehab { 0x00c9, 0x05 },
3349a0bf528SMauro Carvalho Chehab { 0x00ca, 0x4a },
3359a0bf528SMauro Carvalho Chehab { 0x00cb, 0xd0 },
3369a0bf528SMauro Carvalho Chehab { 0x00cc, 0x01 },
3379a0bf528SMauro Carvalho Chehab { 0x00cd, 0xd9 },
3389a0bf528SMauro Carvalho Chehab { 0x00ce, 0x6f },
3399a0bf528SMauro Carvalho Chehab { 0x00cf, 0xf9 },
3409a0bf528SMauro Carvalho Chehab { 0x00d0, 0x70 },
3419a0bf528SMauro Carvalho Chehab { 0x00d1, 0xdf },
3429a0bf528SMauro Carvalho Chehab { 0x00d2, 0xf7 },
3439a0bf528SMauro Carvalho Chehab { 0x00d3, 0xc2 },
3449a0bf528SMauro Carvalho Chehab { 0x00d4, 0xdf },
3459a0bf528SMauro Carvalho Chehab { 0x00d5, 0x02 },
3469a0bf528SMauro Carvalho Chehab { 0x00d6, 0x9a },
3479a0bf528SMauro Carvalho Chehab { 0x00d7, 0xd0 },
3489a0bf528SMauro Carvalho Chehab { 0x0250, 0x0d },
3499a0bf528SMauro Carvalho Chehab { 0x0251, 0xcd },
3509a0bf528SMauro Carvalho Chehab { 0x0252, 0xe0 },
3519a0bf528SMauro Carvalho Chehab { 0x0253, 0x05 },
3529a0bf528SMauro Carvalho Chehab { 0x0254, 0xa7 },
3539a0bf528SMauro Carvalho Chehab { 0x0255, 0xff },
3549a0bf528SMauro Carvalho Chehab { 0x0256, 0xed },
3559a0bf528SMauro Carvalho Chehab { 0x0257, 0x5b },
3569a0bf528SMauro Carvalho Chehab { 0x0258, 0xae },
3579a0bf528SMauro Carvalho Chehab { 0x0259, 0xe6 },
3589a0bf528SMauro Carvalho Chehab { 0x025a, 0x3d },
3599a0bf528SMauro Carvalho Chehab { 0x025b, 0x0f },
3609a0bf528SMauro Carvalho Chehab { 0x025c, 0x0d },
3619a0bf528SMauro Carvalho Chehab { 0x025d, 0xea },
3629a0bf528SMauro Carvalho Chehab { 0x025e, 0xf2 },
3639a0bf528SMauro Carvalho Chehab { 0x025f, 0x51 },
3649a0bf528SMauro Carvalho Chehab { 0x0260, 0xf5 },
3659a0bf528SMauro Carvalho Chehab { 0x0261, 0x06 },
3669a0bf528SMauro Carvalho Chehab { 0x021a, 0x00 },
3679a0bf528SMauro Carvalho Chehab { 0x0546, 0x40 },
3689a0bf528SMauro Carvalho Chehab { 0x0210, 0xc7 },
3699a0bf528SMauro Carvalho Chehab { 0x0211, 0xaa },
3709a0bf528SMauro Carvalho Chehab { 0x0212, 0xab },
3719a0bf528SMauro Carvalho Chehab { 0x0213, 0x02 },
3729a0bf528SMauro Carvalho Chehab { 0x0502, 0x00 },
3739a0bf528SMauro Carvalho Chehab { 0x0121, 0x04 },
3749a0bf528SMauro Carvalho Chehab { 0x0122, 0x04 },
3759a0bf528SMauro Carvalho Chehab { 0x052e, 0x10 },
3769a0bf528SMauro Carvalho Chehab { 0x00a4, 0xca },
3779a0bf528SMauro Carvalho Chehab { 0x00a7, 0x40 },
3789a0bf528SMauro Carvalho Chehab { 0x0526, 0x01 },
3799a0bf528SMauro Carvalho Chehab };
3809a0bf528SMauro Carvalho Chehab
3819a0bf528SMauro Carvalho Chehab /* QAM256 Modulation table */
3829a0bf528SMauro Carvalho Chehab static struct {
3839a0bf528SMauro Carvalho Chehab u16 reg;
3849a0bf528SMauro Carvalho Chehab u16 data;
3859a0bf528SMauro Carvalho Chehab } QAM256_mod_tab[] = {
386d6f79a91SDevin Heitmueller { 0x00a3, 0x09 },
387d6f79a91SDevin Heitmueller { 0x00a4, 0x00 },
388d6f79a91SDevin Heitmueller { 0x0081, 0xc4 },
389d6f79a91SDevin Heitmueller { 0x00a5, 0x40 },
390d6f79a91SDevin Heitmueller { 0x00aa, 0x77 },
391d6f79a91SDevin Heitmueller { 0x00ad, 0x77 },
392d6f79a91SDevin Heitmueller { 0x00a6, 0x67 },
393d6f79a91SDevin Heitmueller { 0x0262, 0x20 },
394d6f79a91SDevin Heitmueller { 0x021c, 0x30 },
395d6f79a91SDevin Heitmueller { 0x00b8, 0x3e },
396d6f79a91SDevin Heitmueller { 0x00b9, 0xf0 },
397d6f79a91SDevin Heitmueller { 0x00ba, 0x01 },
398d6f79a91SDevin Heitmueller { 0x00bb, 0x18 },
399d6f79a91SDevin Heitmueller { 0x00bc, 0x50 },
400d6f79a91SDevin Heitmueller { 0x00bd, 0x00 },
401d6f79a91SDevin Heitmueller { 0x00be, 0xea },
402d6f79a91SDevin Heitmueller { 0x00bf, 0xef },
403d6f79a91SDevin Heitmueller { 0x00c0, 0xfc },
404d6f79a91SDevin Heitmueller { 0x00c1, 0xbd },
405d6f79a91SDevin Heitmueller { 0x00c2, 0x1f },
406d6f79a91SDevin Heitmueller { 0x00c3, 0xfc },
407d6f79a91SDevin Heitmueller { 0x00c4, 0xdd },
408d6f79a91SDevin Heitmueller { 0x00c5, 0xaf },
409d6f79a91SDevin Heitmueller { 0x00c6, 0x00 },
410d6f79a91SDevin Heitmueller { 0x00c7, 0x38 },
411d6f79a91SDevin Heitmueller { 0x00c8, 0x30 },
412d6f79a91SDevin Heitmueller { 0x00c9, 0x05 },
413d6f79a91SDevin Heitmueller { 0x00ca, 0x4a },
414d6f79a91SDevin Heitmueller { 0x00cb, 0xd0 },
415d6f79a91SDevin Heitmueller { 0x00cc, 0x01 },
416d6f79a91SDevin Heitmueller { 0x00cd, 0xd9 },
417d6f79a91SDevin Heitmueller { 0x00ce, 0x6f },
418d6f79a91SDevin Heitmueller { 0x00cf, 0xf9 },
419d6f79a91SDevin Heitmueller { 0x00d0, 0x70 },
420d6f79a91SDevin Heitmueller { 0x00d1, 0xdf },
421d6f79a91SDevin Heitmueller { 0x00d2, 0xf7 },
422d6f79a91SDevin Heitmueller { 0x00d3, 0xc2 },
423d6f79a91SDevin Heitmueller { 0x00d4, 0xdf },
424d6f79a91SDevin Heitmueller { 0x00d5, 0x02 },
425d6f79a91SDevin Heitmueller { 0x00d6, 0x9a },
426d6f79a91SDevin Heitmueller { 0x00d7, 0xd0 },
427d6f79a91SDevin Heitmueller { 0x0250, 0x0d },
428d6f79a91SDevin Heitmueller { 0x0251, 0xcd },
429d6f79a91SDevin Heitmueller { 0x0252, 0xe0 },
430d6f79a91SDevin Heitmueller { 0x0253, 0x05 },
431d6f79a91SDevin Heitmueller { 0x0254, 0xa7 },
432d6f79a91SDevin Heitmueller { 0x0255, 0xff },
433d6f79a91SDevin Heitmueller { 0x0256, 0xed },
434d6f79a91SDevin Heitmueller { 0x0257, 0x5b },
435d6f79a91SDevin Heitmueller { 0x0258, 0xae },
436d6f79a91SDevin Heitmueller { 0x0259, 0xe6 },
437d6f79a91SDevin Heitmueller { 0x025a, 0x3d },
438d6f79a91SDevin Heitmueller { 0x025b, 0x0f },
439d6f79a91SDevin Heitmueller { 0x025c, 0x0d },
440d6f79a91SDevin Heitmueller { 0x025d, 0xea },
441d6f79a91SDevin Heitmueller { 0x025e, 0xf2 },
442d6f79a91SDevin Heitmueller { 0x025f, 0x51 },
443d6f79a91SDevin Heitmueller { 0x0260, 0xf5 },
444d6f79a91SDevin Heitmueller { 0x0261, 0x06 },
445d6f79a91SDevin Heitmueller { 0x021a, 0x00 },
446d6f79a91SDevin Heitmueller { 0x0546, 0x40 },
447d6f79a91SDevin Heitmueller { 0x0210, 0x26 },
448d6f79a91SDevin Heitmueller { 0x0211, 0xf6 },
449d6f79a91SDevin Heitmueller { 0x0212, 0x84 },
450d6f79a91SDevin Heitmueller { 0x0213, 0x02 },
451d6f79a91SDevin Heitmueller { 0x0502, 0x01 },
452d6f79a91SDevin Heitmueller { 0x0121, 0x04 },
453d6f79a91SDevin Heitmueller { 0x0122, 0x04 },
454d6f79a91SDevin Heitmueller { 0x052e, 0x10 },
455d6f79a91SDevin Heitmueller { 0x00a4, 0xca },
456d6f79a91SDevin Heitmueller { 0x00a7, 0x40 },
457d6f79a91SDevin Heitmueller { 0x0526, 0x01 },
4589a0bf528SMauro Carvalho Chehab };
4599a0bf528SMauro Carvalho Chehab
460dcc33cc5SRichard Vollkommer static struct {
461dcc33cc5SRichard Vollkommer u16 reg;
462dcc33cc5SRichard Vollkommer u16 data;
463dcc33cc5SRichard Vollkommer } QAM256_mod_tab_zv_mode[] = {
464dcc33cc5SRichard Vollkommer { 0x80a3, 0x09 },
465dcc33cc5SRichard Vollkommer { 0x80a4, 0x00 },
466dcc33cc5SRichard Vollkommer { 0x8081, 0xc4 },
467dcc33cc5SRichard Vollkommer { 0x80a5, 0x40 },
468dcc33cc5SRichard Vollkommer { 0x80b5, 0xfb },
469dcc33cc5SRichard Vollkommer { 0x80b6, 0x8e },
470dcc33cc5SRichard Vollkommer { 0x80b7, 0x39 },
471dcc33cc5SRichard Vollkommer { 0x80aa, 0x77 },
472dcc33cc5SRichard Vollkommer { 0x80ad, 0x77 },
473dcc33cc5SRichard Vollkommer { 0x80a6, 0x67 },
474dcc33cc5SRichard Vollkommer { 0x8262, 0x20 },
475dcc33cc5SRichard Vollkommer { 0x821c, 0x30 },
476dcc33cc5SRichard Vollkommer { 0x80b8, 0x3e },
477dcc33cc5SRichard Vollkommer { 0x80b9, 0xf0 },
478dcc33cc5SRichard Vollkommer { 0x80ba, 0x01 },
479dcc33cc5SRichard Vollkommer { 0x80bb, 0x18 },
480dcc33cc5SRichard Vollkommer { 0x80bc, 0x50 },
481dcc33cc5SRichard Vollkommer { 0x80bd, 0x00 },
482dcc33cc5SRichard Vollkommer { 0x80be, 0xea },
483dcc33cc5SRichard Vollkommer { 0x80bf, 0xef },
484dcc33cc5SRichard Vollkommer { 0x80c0, 0xfc },
485dcc33cc5SRichard Vollkommer { 0x80c1, 0xbd },
486dcc33cc5SRichard Vollkommer { 0x80c2, 0x1f },
487dcc33cc5SRichard Vollkommer { 0x80c3, 0xfc },
488dcc33cc5SRichard Vollkommer { 0x80c4, 0xdd },
489dcc33cc5SRichard Vollkommer { 0x80c5, 0xaf },
490dcc33cc5SRichard Vollkommer { 0x80c6, 0x00 },
491dcc33cc5SRichard Vollkommer { 0x80c7, 0x38 },
492dcc33cc5SRichard Vollkommer { 0x80c8, 0x30 },
493dcc33cc5SRichard Vollkommer { 0x80c9, 0x05 },
494dcc33cc5SRichard Vollkommer { 0x80ca, 0x4a },
495dcc33cc5SRichard Vollkommer { 0x80cb, 0xd0 },
496dcc33cc5SRichard Vollkommer { 0x80cc, 0x01 },
497dcc33cc5SRichard Vollkommer { 0x80cd, 0xd9 },
498dcc33cc5SRichard Vollkommer { 0x80ce, 0x6f },
499dcc33cc5SRichard Vollkommer { 0x80cf, 0xf9 },
500dcc33cc5SRichard Vollkommer { 0x80d0, 0x70 },
501dcc33cc5SRichard Vollkommer { 0x80d1, 0xdf },
502dcc33cc5SRichard Vollkommer { 0x80d2, 0xf7 },
503dcc33cc5SRichard Vollkommer { 0x80d3, 0xc2 },
504dcc33cc5SRichard Vollkommer { 0x80d4, 0xdf },
505dcc33cc5SRichard Vollkommer { 0x80d5, 0x02 },
506dcc33cc5SRichard Vollkommer { 0x80d6, 0x9a },
507dcc33cc5SRichard Vollkommer { 0x80d7, 0xd0 },
508dcc33cc5SRichard Vollkommer { 0x8250, 0x0d },
509dcc33cc5SRichard Vollkommer { 0x8251, 0xcd },
510dcc33cc5SRichard Vollkommer { 0x8252, 0xe0 },
511dcc33cc5SRichard Vollkommer { 0x8253, 0x05 },
512dcc33cc5SRichard Vollkommer { 0x8254, 0xa7 },
513dcc33cc5SRichard Vollkommer { 0x8255, 0xff },
514dcc33cc5SRichard Vollkommer { 0x8256, 0xed },
515dcc33cc5SRichard Vollkommer { 0x8257, 0x5b },
516dcc33cc5SRichard Vollkommer { 0x8258, 0xae },
517dcc33cc5SRichard Vollkommer { 0x8259, 0xe6 },
518dcc33cc5SRichard Vollkommer { 0x825a, 0x3d },
519dcc33cc5SRichard Vollkommer { 0x825b, 0x0f },
520dcc33cc5SRichard Vollkommer { 0x825c, 0x0d },
521dcc33cc5SRichard Vollkommer { 0x825d, 0xea },
522dcc33cc5SRichard Vollkommer { 0x825e, 0xf2 },
523dcc33cc5SRichard Vollkommer { 0x825f, 0x51 },
524dcc33cc5SRichard Vollkommer { 0x8260, 0xf5 },
525dcc33cc5SRichard Vollkommer { 0x8261, 0x06 },
526dcc33cc5SRichard Vollkommer { 0x821a, 0x01 },
527dcc33cc5SRichard Vollkommer { 0x8546, 0x40 },
528dcc33cc5SRichard Vollkommer { 0x8210, 0x26 },
529dcc33cc5SRichard Vollkommer { 0x8211, 0xf6 },
530dcc33cc5SRichard Vollkommer { 0x8212, 0x84 },
531dcc33cc5SRichard Vollkommer { 0x8213, 0x02 },
532dcc33cc5SRichard Vollkommer { 0x8502, 0x01 },
533dcc33cc5SRichard Vollkommer { 0x8121, 0x04 },
534dcc33cc5SRichard Vollkommer { 0x8122, 0x04 },
535dcc33cc5SRichard Vollkommer { 0x852e, 0x10 },
536dcc33cc5SRichard Vollkommer { 0x80a4, 0xca },
537dcc33cc5SRichard Vollkommer { 0x80a7, 0x40 },
538dcc33cc5SRichard Vollkommer { 0x8526, 0x01 },
539dcc33cc5SRichard Vollkommer };
540dcc33cc5SRichard Vollkommer
au8522_enable_modulation(struct dvb_frontend * fe,enum fe_modulation m)5419a0bf528SMauro Carvalho Chehab static int au8522_enable_modulation(struct dvb_frontend *fe,
5420df289a2SMauro Carvalho Chehab enum fe_modulation m)
5439a0bf528SMauro Carvalho Chehab {
5449a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
5459a0bf528SMauro Carvalho Chehab int i;
5469a0bf528SMauro Carvalho Chehab
5479a0bf528SMauro Carvalho Chehab dprintk("%s(0x%08x)\n", __func__, m);
5489a0bf528SMauro Carvalho Chehab
5499a0bf528SMauro Carvalho Chehab switch (m) {
5509a0bf528SMauro Carvalho Chehab case VSB_8:
5519a0bf528SMauro Carvalho Chehab dprintk("%s() VSB_8\n", __func__);
5529a0bf528SMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(VSB_mod_tab); i++)
5539a0bf528SMauro Carvalho Chehab au8522_writereg(state,
5549a0bf528SMauro Carvalho Chehab VSB_mod_tab[i].reg,
5559a0bf528SMauro Carvalho Chehab VSB_mod_tab[i].data);
556aa37763fSMauro Carvalho Chehab au8522_set_if(fe, state->config.vsb_if);
5579a0bf528SMauro Carvalho Chehab break;
5589a0bf528SMauro Carvalho Chehab case QAM_64:
5599a0bf528SMauro Carvalho Chehab dprintk("%s() QAM 64\n", __func__);
5609a0bf528SMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(QAM64_mod_tab); i++)
5619a0bf528SMauro Carvalho Chehab au8522_writereg(state,
5629a0bf528SMauro Carvalho Chehab QAM64_mod_tab[i].reg,
5639a0bf528SMauro Carvalho Chehab QAM64_mod_tab[i].data);
564aa37763fSMauro Carvalho Chehab au8522_set_if(fe, state->config.qam_if);
5659a0bf528SMauro Carvalho Chehab break;
5669a0bf528SMauro Carvalho Chehab case QAM_256:
567dcc33cc5SRichard Vollkommer if (zv_mode) {
568dcc33cc5SRichard Vollkommer dprintk("%s() QAM 256 (zv_mode)\n", __func__);
569dcc33cc5SRichard Vollkommer for (i = 0; i < ARRAY_SIZE(QAM256_mod_tab_zv_mode); i++)
570dcc33cc5SRichard Vollkommer au8522_writereg(state,
571dcc33cc5SRichard Vollkommer QAM256_mod_tab_zv_mode[i].reg,
572dcc33cc5SRichard Vollkommer QAM256_mod_tab_zv_mode[i].data);
573aa37763fSMauro Carvalho Chehab au8522_set_if(fe, state->config.qam_if);
574dcc33cc5SRichard Vollkommer msleep(100);
575dcc33cc5SRichard Vollkommer au8522_writereg(state, 0x821a, 0x00);
576dcc33cc5SRichard Vollkommer } else {
5779a0bf528SMauro Carvalho Chehab dprintk("%s() QAM 256\n", __func__);
5789a0bf528SMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(QAM256_mod_tab); i++)
5799a0bf528SMauro Carvalho Chehab au8522_writereg(state,
5809a0bf528SMauro Carvalho Chehab QAM256_mod_tab[i].reg,
5819a0bf528SMauro Carvalho Chehab QAM256_mod_tab[i].data);
582aa37763fSMauro Carvalho Chehab au8522_set_if(fe, state->config.qam_if);
583dcc33cc5SRichard Vollkommer }
5849a0bf528SMauro Carvalho Chehab break;
5859a0bf528SMauro Carvalho Chehab default:
5869a0bf528SMauro Carvalho Chehab dprintk("%s() Invalid modulation\n", __func__);
5879a0bf528SMauro Carvalho Chehab return -EINVAL;
5889a0bf528SMauro Carvalho Chehab }
5899a0bf528SMauro Carvalho Chehab
5909a0bf528SMauro Carvalho Chehab state->current_modulation = m;
5919a0bf528SMauro Carvalho Chehab
5929a0bf528SMauro Carvalho Chehab return 0;
5939a0bf528SMauro Carvalho Chehab }
5949a0bf528SMauro Carvalho Chehab
5959a0bf528SMauro Carvalho Chehab /* Talk to the demod, set the FEC, GUARD, QAM settings etc */
au8522_set_frontend(struct dvb_frontend * fe)5969a0bf528SMauro Carvalho Chehab static int au8522_set_frontend(struct dvb_frontend *fe)
5979a0bf528SMauro Carvalho Chehab {
5989a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *c = &fe->dtv_property_cache;
5999a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
6009a0bf528SMauro Carvalho Chehab int ret = -EINVAL;
6019a0bf528SMauro Carvalho Chehab
6029a0bf528SMauro Carvalho Chehab dprintk("%s(frequency=%d)\n", __func__, c->frequency);
6039a0bf528SMauro Carvalho Chehab
6049a0bf528SMauro Carvalho Chehab if ((state->current_frequency == c->frequency) &&
6059a0bf528SMauro Carvalho Chehab (state->current_modulation == c->modulation))
6069a0bf528SMauro Carvalho Chehab return 0;
6079a0bf528SMauro Carvalho Chehab
6089a0bf528SMauro Carvalho Chehab if (fe->ops.tuner_ops.set_params) {
6099a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
6109a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 1);
6119a0bf528SMauro Carvalho Chehab ret = fe->ops.tuner_ops.set_params(fe);
6129a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
6139a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 0);
6149a0bf528SMauro Carvalho Chehab }
6159a0bf528SMauro Carvalho Chehab
6169a0bf528SMauro Carvalho Chehab if (ret < 0)
6179a0bf528SMauro Carvalho Chehab return ret;
6189a0bf528SMauro Carvalho Chehab
6199a0bf528SMauro Carvalho Chehab /* Allow the tuner to settle */
620dcc33cc5SRichard Vollkommer if (zv_mode) {
621dcc33cc5SRichard Vollkommer dprintk("%s() increase tuner settling time for zv_mode\n",
622dcc33cc5SRichard Vollkommer __func__);
623dcc33cc5SRichard Vollkommer msleep(250);
624dcc33cc5SRichard Vollkommer } else
6259a0bf528SMauro Carvalho Chehab msleep(100);
6269a0bf528SMauro Carvalho Chehab
6279a0bf528SMauro Carvalho Chehab au8522_enable_modulation(fe, c->modulation);
6289a0bf528SMauro Carvalho Chehab
6299a0bf528SMauro Carvalho Chehab state->current_frequency = c->frequency;
6309a0bf528SMauro Carvalho Chehab
6319a0bf528SMauro Carvalho Chehab return 0;
6329a0bf528SMauro Carvalho Chehab }
6339a0bf528SMauro Carvalho Chehab
au8522_read_status(struct dvb_frontend * fe,enum fe_status * status)6340df289a2SMauro Carvalho Chehab static int au8522_read_status(struct dvb_frontend *fe, enum fe_status *status)
6359a0bf528SMauro Carvalho Chehab {
6369a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
6379a0bf528SMauro Carvalho Chehab u8 reg;
6389a0bf528SMauro Carvalho Chehab u32 tuner_status = 0;
6399a0bf528SMauro Carvalho Chehab
6409a0bf528SMauro Carvalho Chehab *status = 0;
6419a0bf528SMauro Carvalho Chehab
6429a0bf528SMauro Carvalho Chehab if (state->current_modulation == VSB_8) {
6439a0bf528SMauro Carvalho Chehab dprintk("%s() Checking VSB_8\n", __func__);
6446211d28eSDevin Heitmueller reg = au8522_readreg(state, 0x0088);
6459a0bf528SMauro Carvalho Chehab if ((reg & 0x03) == 0x03)
6469a0bf528SMauro Carvalho Chehab *status |= FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI;
6479a0bf528SMauro Carvalho Chehab } else {
6489a0bf528SMauro Carvalho Chehab dprintk("%s() Checking QAM\n", __func__);
6496211d28eSDevin Heitmueller reg = au8522_readreg(state, 0x0541);
6509a0bf528SMauro Carvalho Chehab if (reg & 0x80)
6519a0bf528SMauro Carvalho Chehab *status |= FE_HAS_VITERBI;
6529a0bf528SMauro Carvalho Chehab if (reg & 0x20)
6539a0bf528SMauro Carvalho Chehab *status |= FE_HAS_LOCK | FE_HAS_SYNC;
6549a0bf528SMauro Carvalho Chehab }
6559a0bf528SMauro Carvalho Chehab
656aa37763fSMauro Carvalho Chehab switch (state->config.status_mode) {
6579a0bf528SMauro Carvalho Chehab case AU8522_DEMODLOCKING:
6589a0bf528SMauro Carvalho Chehab dprintk("%s() DEMODLOCKING\n", __func__);
6599a0bf528SMauro Carvalho Chehab if (*status & FE_HAS_VITERBI)
6609a0bf528SMauro Carvalho Chehab *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
6619a0bf528SMauro Carvalho Chehab break;
6629a0bf528SMauro Carvalho Chehab case AU8522_TUNERLOCKING:
6639a0bf528SMauro Carvalho Chehab /* Get the tuner status */
6649a0bf528SMauro Carvalho Chehab dprintk("%s() TUNERLOCKING\n", __func__);
6659a0bf528SMauro Carvalho Chehab if (fe->ops.tuner_ops.get_status) {
6669a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
6679a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 1);
6689a0bf528SMauro Carvalho Chehab
6699a0bf528SMauro Carvalho Chehab fe->ops.tuner_ops.get_status(fe, &tuner_status);
6709a0bf528SMauro Carvalho Chehab
6719a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
6729a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 0);
6739a0bf528SMauro Carvalho Chehab }
6749a0bf528SMauro Carvalho Chehab if (tuner_status)
6759a0bf528SMauro Carvalho Chehab *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
6769a0bf528SMauro Carvalho Chehab break;
6779a0bf528SMauro Carvalho Chehab }
6789a0bf528SMauro Carvalho Chehab state->fe_status = *status;
6799a0bf528SMauro Carvalho Chehab
6809a0bf528SMauro Carvalho Chehab if (*status & FE_HAS_LOCK)
6819a0bf528SMauro Carvalho Chehab /* turn on LED, if it isn't on already */
6829a0bf528SMauro Carvalho Chehab au8522_led_ctrl(state, -1);
6839a0bf528SMauro Carvalho Chehab else
6849a0bf528SMauro Carvalho Chehab /* turn off LED */
6859a0bf528SMauro Carvalho Chehab au8522_led_ctrl(state, 0);
6869a0bf528SMauro Carvalho Chehab
6879a0bf528SMauro Carvalho Chehab dprintk("%s() status 0x%08x\n", __func__, *status);
6889a0bf528SMauro Carvalho Chehab
6899a0bf528SMauro Carvalho Chehab return 0;
6909a0bf528SMauro Carvalho Chehab }
6919a0bf528SMauro Carvalho Chehab
au8522_led_status(struct au8522_state * state,const u16 * snr)6929a0bf528SMauro Carvalho Chehab static int au8522_led_status(struct au8522_state *state, const u16 *snr)
6939a0bf528SMauro Carvalho Chehab {
694aa37763fSMauro Carvalho Chehab struct au8522_led_config *led_config = state->config.led_cfg;
6959a0bf528SMauro Carvalho Chehab int led;
6969a0bf528SMauro Carvalho Chehab u16 strong;
6979a0bf528SMauro Carvalho Chehab
6989a0bf528SMauro Carvalho Chehab /* bail out if we can't control an LED */
6999a0bf528SMauro Carvalho Chehab if (!led_config)
7009a0bf528SMauro Carvalho Chehab return 0;
7019a0bf528SMauro Carvalho Chehab
7029a0bf528SMauro Carvalho Chehab if (0 == (state->fe_status & FE_HAS_LOCK))
7039a0bf528SMauro Carvalho Chehab return au8522_led_ctrl(state, 0);
7049a0bf528SMauro Carvalho Chehab else if (state->current_modulation == QAM_256)
7059a0bf528SMauro Carvalho Chehab strong = led_config->qam256_strong;
7069a0bf528SMauro Carvalho Chehab else if (state->current_modulation == QAM_64)
7079a0bf528SMauro Carvalho Chehab strong = led_config->qam64_strong;
7089a0bf528SMauro Carvalho Chehab else /* (state->current_modulation == VSB_8) */
7099a0bf528SMauro Carvalho Chehab strong = led_config->vsb8_strong;
7109a0bf528SMauro Carvalho Chehab
7119a0bf528SMauro Carvalho Chehab if (*snr >= strong)
7129a0bf528SMauro Carvalho Chehab led = 2;
7139a0bf528SMauro Carvalho Chehab else
7149a0bf528SMauro Carvalho Chehab led = 1;
7159a0bf528SMauro Carvalho Chehab
7169a0bf528SMauro Carvalho Chehab if ((state->led_state) &&
7179a0bf528SMauro Carvalho Chehab (((strong < *snr) ? (*snr - strong) : (strong - *snr)) <= 10))
7189a0bf528SMauro Carvalho Chehab /* snr didn't change enough to bother
7199a0bf528SMauro Carvalho Chehab * changing the color of the led */
7209a0bf528SMauro Carvalho Chehab return 0;
7219a0bf528SMauro Carvalho Chehab
7229a0bf528SMauro Carvalho Chehab return au8522_led_ctrl(state, led);
7239a0bf528SMauro Carvalho Chehab }
7249a0bf528SMauro Carvalho Chehab
au8522_read_snr(struct dvb_frontend * fe,u16 * snr)7259a0bf528SMauro Carvalho Chehab static int au8522_read_snr(struct dvb_frontend *fe, u16 *snr)
7269a0bf528SMauro Carvalho Chehab {
7279a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
7289a0bf528SMauro Carvalho Chehab int ret = -EINVAL;
7299a0bf528SMauro Carvalho Chehab
7309a0bf528SMauro Carvalho Chehab dprintk("%s()\n", __func__);
7319a0bf528SMauro Carvalho Chehab
7329a0bf528SMauro Carvalho Chehab if (state->current_modulation == QAM_256)
7339a0bf528SMauro Carvalho Chehab ret = au8522_mse2snr_lookup(qam256_mse2snr_tab,
7349a0bf528SMauro Carvalho Chehab ARRAY_SIZE(qam256_mse2snr_tab),
7356211d28eSDevin Heitmueller au8522_readreg(state, 0x0522),
7369a0bf528SMauro Carvalho Chehab snr);
7379a0bf528SMauro Carvalho Chehab else if (state->current_modulation == QAM_64)
7389a0bf528SMauro Carvalho Chehab ret = au8522_mse2snr_lookup(qam64_mse2snr_tab,
7399a0bf528SMauro Carvalho Chehab ARRAY_SIZE(qam64_mse2snr_tab),
7406211d28eSDevin Heitmueller au8522_readreg(state, 0x0522),
7419a0bf528SMauro Carvalho Chehab snr);
7429a0bf528SMauro Carvalho Chehab else /* VSB_8 */
7439a0bf528SMauro Carvalho Chehab ret = au8522_mse2snr_lookup(vsb_mse2snr_tab,
7449a0bf528SMauro Carvalho Chehab ARRAY_SIZE(vsb_mse2snr_tab),
7456211d28eSDevin Heitmueller au8522_readreg(state, 0x0311),
7469a0bf528SMauro Carvalho Chehab snr);
7479a0bf528SMauro Carvalho Chehab
748aa37763fSMauro Carvalho Chehab if (state->config.led_cfg)
7499a0bf528SMauro Carvalho Chehab au8522_led_status(state, snr);
7509a0bf528SMauro Carvalho Chehab
7519a0bf528SMauro Carvalho Chehab return ret;
7529a0bf528SMauro Carvalho Chehab }
7539a0bf528SMauro Carvalho Chehab
au8522_read_signal_strength(struct dvb_frontend * fe,u16 * signal_strength)7549a0bf528SMauro Carvalho Chehab static int au8522_read_signal_strength(struct dvb_frontend *fe,
7559a0bf528SMauro Carvalho Chehab u16 *signal_strength)
7569a0bf528SMauro Carvalho Chehab {
7579a0bf528SMauro Carvalho Chehab /* borrowed from lgdt330x.c
7589a0bf528SMauro Carvalho Chehab *
7599a0bf528SMauro Carvalho Chehab * Calculate strength from SNR up to 35dB
7609a0bf528SMauro Carvalho Chehab * Even though the SNR can go higher than 35dB,
7619a0bf528SMauro Carvalho Chehab * there is some comfort factor in having a range of
7629a0bf528SMauro Carvalho Chehab * strong signals that can show at 100%
7639a0bf528SMauro Carvalho Chehab */
7649a0bf528SMauro Carvalho Chehab u16 snr;
7659a0bf528SMauro Carvalho Chehab u32 tmp;
7669a0bf528SMauro Carvalho Chehab int ret = au8522_read_snr(fe, &snr);
7679a0bf528SMauro Carvalho Chehab
7689a0bf528SMauro Carvalho Chehab *signal_strength = 0;
7699a0bf528SMauro Carvalho Chehab
7709a0bf528SMauro Carvalho Chehab if (0 == ret) {
7719a0bf528SMauro Carvalho Chehab /* The following calculation method was chosen
7729a0bf528SMauro Carvalho Chehab * purely for the sake of code re-use from the
7739a0bf528SMauro Carvalho Chehab * other demod drivers that use this method */
7749a0bf528SMauro Carvalho Chehab
7759a0bf528SMauro Carvalho Chehab /* Convert from SNR in dB * 10 to 8.24 fixed-point */
7769a0bf528SMauro Carvalho Chehab tmp = (snr * ((1 << 24) / 10));
7779a0bf528SMauro Carvalho Chehab
7789a0bf528SMauro Carvalho Chehab /* Convert from 8.24 fixed-point to
7799a0bf528SMauro Carvalho Chehab * scale the range 0 - 35*2^24 into 0 - 65535*/
7809a0bf528SMauro Carvalho Chehab if (tmp >= 8960 * 0x10000)
7819a0bf528SMauro Carvalho Chehab *signal_strength = 0xffff;
7829a0bf528SMauro Carvalho Chehab else
7839a0bf528SMauro Carvalho Chehab *signal_strength = tmp / 8960;
7849a0bf528SMauro Carvalho Chehab }
7859a0bf528SMauro Carvalho Chehab
7869a0bf528SMauro Carvalho Chehab return ret;
7879a0bf528SMauro Carvalho Chehab }
7889a0bf528SMauro Carvalho Chehab
au8522_read_ucblocks(struct dvb_frontend * fe,u32 * ucblocks)7899a0bf528SMauro Carvalho Chehab static int au8522_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
7909a0bf528SMauro Carvalho Chehab {
7919a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
7929a0bf528SMauro Carvalho Chehab
7939a0bf528SMauro Carvalho Chehab if (state->current_modulation == VSB_8)
7946211d28eSDevin Heitmueller *ucblocks = au8522_readreg(state, 0x0087);
7959a0bf528SMauro Carvalho Chehab else
7966211d28eSDevin Heitmueller *ucblocks = au8522_readreg(state, 0x0543);
7979a0bf528SMauro Carvalho Chehab
7989a0bf528SMauro Carvalho Chehab return 0;
7999a0bf528SMauro Carvalho Chehab }
8009a0bf528SMauro Carvalho Chehab
au8522_read_ber(struct dvb_frontend * fe,u32 * ber)8019a0bf528SMauro Carvalho Chehab static int au8522_read_ber(struct dvb_frontend *fe, u32 *ber)
8029a0bf528SMauro Carvalho Chehab {
8039a0bf528SMauro Carvalho Chehab return au8522_read_ucblocks(fe, ber);
8049a0bf528SMauro Carvalho Chehab }
8059a0bf528SMauro Carvalho Chehab
au8522_get_frontend(struct dvb_frontend * fe,struct dtv_frontend_properties * c)8067e3e68bcSMauro Carvalho Chehab static int au8522_get_frontend(struct dvb_frontend *fe,
8077e3e68bcSMauro Carvalho Chehab struct dtv_frontend_properties *c)
8089a0bf528SMauro Carvalho Chehab {
8099a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
8109a0bf528SMauro Carvalho Chehab
8119a0bf528SMauro Carvalho Chehab c->frequency = state->current_frequency;
8129a0bf528SMauro Carvalho Chehab c->modulation = state->current_modulation;
8139a0bf528SMauro Carvalho Chehab
8149a0bf528SMauro Carvalho Chehab return 0;
8159a0bf528SMauro Carvalho Chehab }
8169a0bf528SMauro Carvalho Chehab
au8522_get_tune_settings(struct dvb_frontend * fe,struct dvb_frontend_tune_settings * tune)8179a0bf528SMauro Carvalho Chehab static int au8522_get_tune_settings(struct dvb_frontend *fe,
8189a0bf528SMauro Carvalho Chehab struct dvb_frontend_tune_settings *tune)
8199a0bf528SMauro Carvalho Chehab {
8209a0bf528SMauro Carvalho Chehab tune->min_delay_ms = 1000;
8219a0bf528SMauro Carvalho Chehab return 0;
8229a0bf528SMauro Carvalho Chehab }
8239a0bf528SMauro Carvalho Chehab
824bd336e63SMax Kellermann static const struct dvb_frontend_ops au8522_ops;
8259a0bf528SMauro Carvalho Chehab
8269a0bf528SMauro Carvalho Chehab
au8522_release(struct dvb_frontend * fe)8279a0bf528SMauro Carvalho Chehab static void au8522_release(struct dvb_frontend *fe)
8289a0bf528SMauro Carvalho Chehab {
8299a0bf528SMauro Carvalho Chehab struct au8522_state *state = fe->demodulator_priv;
8309a0bf528SMauro Carvalho Chehab au8522_release_state(state);
8319a0bf528SMauro Carvalho Chehab }
8329a0bf528SMauro Carvalho Chehab
au8522_attach(const struct au8522_config * config,struct i2c_adapter * i2c)8339a0bf528SMauro Carvalho Chehab struct dvb_frontend *au8522_attach(const struct au8522_config *config,
8349a0bf528SMauro Carvalho Chehab struct i2c_adapter *i2c)
8359a0bf528SMauro Carvalho Chehab {
8369a0bf528SMauro Carvalho Chehab struct au8522_state *state = NULL;
8379a0bf528SMauro Carvalho Chehab int instance;
8389a0bf528SMauro Carvalho Chehab
8399a0bf528SMauro Carvalho Chehab /* allocate memory for the internal state */
8409a0bf528SMauro Carvalho Chehab instance = au8522_get_state(&state, i2c, config->demod_address);
8419a0bf528SMauro Carvalho Chehab switch (instance) {
8429a0bf528SMauro Carvalho Chehab case 0:
8439a0bf528SMauro Carvalho Chehab dprintk("%s state allocation failed\n", __func__);
8449a0bf528SMauro Carvalho Chehab break;
8459a0bf528SMauro Carvalho Chehab case 1:
8469a0bf528SMauro Carvalho Chehab /* new demod instance */
8479a0bf528SMauro Carvalho Chehab dprintk("%s using new instance\n", __func__);
8489a0bf528SMauro Carvalho Chehab break;
8499a0bf528SMauro Carvalho Chehab default:
8509a0bf528SMauro Carvalho Chehab /* existing demod instance */
8519a0bf528SMauro Carvalho Chehab dprintk("%s using existing instance\n", __func__);
8529a0bf528SMauro Carvalho Chehab break;
8539a0bf528SMauro Carvalho Chehab }
8549a0bf528SMauro Carvalho Chehab
8559a0bf528SMauro Carvalho Chehab /* setup the state */
856aa37763fSMauro Carvalho Chehab state->config = *config;
8579a0bf528SMauro Carvalho Chehab state->i2c = i2c;
8589a0bf528SMauro Carvalho Chehab state->operational_mode = AU8522_DIGITAL_MODE;
8599a0bf528SMauro Carvalho Chehab
8609a0bf528SMauro Carvalho Chehab /* create dvb_frontend */
8619a0bf528SMauro Carvalho Chehab memcpy(&state->frontend.ops, &au8522_ops,
8629a0bf528SMauro Carvalho Chehab sizeof(struct dvb_frontend_ops));
8639a0bf528SMauro Carvalho Chehab state->frontend.demodulator_priv = state;
8649a0bf528SMauro Carvalho Chehab
8659a0bf528SMauro Carvalho Chehab state->frontend.ops.analog_ops.i2c_gate_ctrl = au8522_analog_i2c_gate_ctrl;
8669a0bf528SMauro Carvalho Chehab
8679a0bf528SMauro Carvalho Chehab if (au8522_init(&state->frontend) != 0) {
8689a0bf528SMauro Carvalho Chehab printk(KERN_ERR "%s: Failed to initialize correctly\n",
8699a0bf528SMauro Carvalho Chehab __func__);
8709a0bf528SMauro Carvalho Chehab goto error;
8719a0bf528SMauro Carvalho Chehab }
8729a0bf528SMauro Carvalho Chehab
8739a0bf528SMauro Carvalho Chehab /* Note: Leaving the I2C gate open here. */
8749a0bf528SMauro Carvalho Chehab au8522_i2c_gate_ctrl(&state->frontend, 1);
8759a0bf528SMauro Carvalho Chehab
8769a0bf528SMauro Carvalho Chehab return &state->frontend;
8779a0bf528SMauro Carvalho Chehab
8789a0bf528SMauro Carvalho Chehab error:
8799a0bf528SMauro Carvalho Chehab au8522_release_state(state);
8809a0bf528SMauro Carvalho Chehab return NULL;
8819a0bf528SMauro Carvalho Chehab }
882*86495af1SGreg Kroah-Hartman EXPORT_SYMBOL_GPL(au8522_attach);
8839a0bf528SMauro Carvalho Chehab
884bd336e63SMax Kellermann static const struct dvb_frontend_ops au8522_ops = {
8859a0bf528SMauro Carvalho Chehab .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
8869a0bf528SMauro Carvalho Chehab .info = {
8879a0bf528SMauro Carvalho Chehab .name = "Auvitek AU8522 QAM/8VSB Frontend",
888f1b1eabfSMauro Carvalho Chehab .frequency_min_hz = 54 * MHz,
889f1b1eabfSMauro Carvalho Chehab .frequency_max_hz = 858 * MHz,
890f1b1eabfSMauro Carvalho Chehab .frequency_stepsize_hz = 62500,
8919a0bf528SMauro Carvalho Chehab .caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB
8929a0bf528SMauro Carvalho Chehab },
8939a0bf528SMauro Carvalho Chehab
8949a0bf528SMauro Carvalho Chehab .init = au8522_init,
8959a0bf528SMauro Carvalho Chehab .sleep = au8522_sleep,
8969a0bf528SMauro Carvalho Chehab .i2c_gate_ctrl = au8522_i2c_gate_ctrl,
8979a0bf528SMauro Carvalho Chehab .set_frontend = au8522_set_frontend,
8989a0bf528SMauro Carvalho Chehab .get_frontend = au8522_get_frontend,
8999a0bf528SMauro Carvalho Chehab .get_tune_settings = au8522_get_tune_settings,
9009a0bf528SMauro Carvalho Chehab .read_status = au8522_read_status,
9019a0bf528SMauro Carvalho Chehab .read_ber = au8522_read_ber,
9029a0bf528SMauro Carvalho Chehab .read_signal_strength = au8522_read_signal_strength,
9039a0bf528SMauro Carvalho Chehab .read_snr = au8522_read_snr,
9049a0bf528SMauro Carvalho Chehab .read_ucblocks = au8522_read_ucblocks,
9059a0bf528SMauro Carvalho Chehab .release = au8522_release,
9069a0bf528SMauro Carvalho Chehab };
9079a0bf528SMauro Carvalho Chehab
9089a0bf528SMauro Carvalho Chehab module_param(debug, int, 0644);
9099a0bf528SMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Enable verbose debug messages");
9109a0bf528SMauro Carvalho Chehab
911dcc33cc5SRichard Vollkommer module_param(zv_mode, int, 0644);
91260acc4ebSLaurent Pinchart MODULE_PARM_DESC(zv_mode, "Turn on/off ZeeVee modulator compatibility mode (default:on).\n"
913dcc33cc5SRichard Vollkommer "\t\ton - modified AU8522 QAM256 initialization.\n"
914dcc33cc5SRichard Vollkommer "\t\tProvides faster lock when using ZeeVee modulator based sources");
915dcc33cc5SRichard Vollkommer
9169a0bf528SMauro Carvalho Chehab MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver");
9179a0bf528SMauro Carvalho Chehab MODULE_AUTHOR("Steven Toth");
9189a0bf528SMauro Carvalho Chehab MODULE_LICENSE("GPL");
919