media/dvb-frontends/nxt200x.c

58 static int i2c_writebytes (struct nxt200x_state* state, u8 addr, u8 *buf, u8 len)
61 	struct i2c_msg msg = { .addr = addr, .flags = 0, .buf = buf, .len = len };
71 static int i2c_readbytes(struct nxt200x_state *state, u8 addr, u8 *buf, u8 len)
74 	struct i2c_msg msg = { .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len };
85 			       const u8 *buf, u8 len)
89 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf2, .len = len + 1 };
98 	memcpy(&buf2[1], buf, len);
108 static int nxt200x_readbytes(struct nxt200x_state *state, u8 reg, u8 *buf, u8 len)
112 	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = reg2, .len = 1 },
113 			{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = len } };
143 	u8 attr, len2, buf;
155 			buf = 0x02;
167 			buf = 0x80;
177 	nxt200x_writebytes(state, 0x21, &buf, 1);
179 	nxt200x_readbytes(state, 0x21, &buf, 1);
183 			if ((buf & 0x02) == 0)
187 			if (buf == 0)
202 	u8 buf, len2, attr;
231 			buf = 0x80;
232 			nxt200x_writebytes(state, 0x21, &buf, 1);
246 	u8 buf, stopval, counter = 0;
262 	buf = 0x80;
263 	nxt200x_writebytes(state, 0x22, &buf, 1);
266 		nxt200x_readbytes(state, 0x31, &buf, 1);
267 		if (buf & stopval)
279 	u8 buf;
282 	buf = 0x00;
283 	nxt200x_writebytes(state, 0x22, &buf, 1);
288 	u8 buf[9];
292 	buf[0] = 0x00;
293 	nxt200x_writebytes(state, 0x2b, buf, 1);
294 	buf[0] = 0x70;
295 	nxt200x_writebytes(state, 0x34, buf, 1);
296 	buf[0] = 0x04;
297 	nxt200x_writebytes(state, 0x35, buf, 1);
298 	buf[0] = 0x01; buf[1] = 0x23; buf[2] = 0x45; buf[3] = 0x67; buf[4] = 0x89;
299 	buf[5] = 0xAB; buf[6] = 0xCD; buf[7] = 0xEF; buf[8] = 0xC0;
300 	nxt200x_writebytes(state, 0x36, buf, 9);
301 	buf[0] = 0x80;
302 	nxt200x_writebytes(state, 0x21, buf, 1);
305 		nxt200x_readbytes(state, 0x21, buf, 1);
306 		if (buf[0] == 0)
319 	u8 buf, count = 0;
333 				i2c_readbytes(state, data[0], &buf, 1);
334 				if (buf & 0x40)
343 			buf = 0x03;
344 			nxt200x_writebytes(state, 0x20, &buf, 1);
347 			buf = 0x04;
348 			nxt200x_writebytes(state, 0x34, &buf, 1);
354 			buf = data[0] << 1;
355 			nxt200x_writebytes(state, 0x35, &buf, 1);
358 			buf = 0x80;
359 			nxt200x_writebytes(state, 0x21, &buf, 1);
362 				nxt200x_readbytes(state, 0x21, &buf, 1);
363 				if ((buf & 0x80)== 0x00)
378 	u8 buf;
383 			buf = 0x08;
384 			nxt200x_writebytes(state, 0x08, &buf, 1);
385 			buf = 0x00;
386 			nxt200x_writebytes(state, 0x08, &buf, 1);
389 			nxt200x_readreg_multibyte(state, 0x08, &buf, 1);
390 			buf = 0x08;
391 			nxt200x_writereg_multibyte(state, 0x08, &buf, 1);
392 			buf = 0x00;
393 			nxt200x_writereg_multibyte(state, 0x08, &buf, 1);
405 	u8 buf[3], written = 0, chunkpos = 0;
412 	nxt200x_readbytes(state, 0x10, buf, 1);
414 	if (buf[0] & 0x10)
422 	buf[0] = 0x80;
423 	nxt200x_writebytes(state, 0x2B, buf, 1);
429 			buf[0] = ((rambase + position) >> 8);
430 			buf[1] = (rambase + position) & 0xFF;
431 			buf[2] = 0x81;
433 			nxt200x_writebytes(state, 0x29, buf, 3);
448 			buf[0] = crc << 8;
449 			buf[1] = crc & 0xFF;
452 			nxt200x_writebytes(state, 0x2C, buf, 2);
455 			nxt200x_readbytes(state, 0x2A, buf, 1);
458 			buf[0] = 0x80;
459 			nxt200x_writebytes(state, 0x2B, buf, 1);
472 	u8 buf[3];
482 	buf[0] = 0x80;
483 	nxt200x_writebytes(state, 0x2B, buf,1);
490 	buf[0] = rambase >> 8;
491 	buf[1] = rambase & 0xFF;
492 	buf[2] = 0x81;
494 	nxt200x_writebytes(state,0x29,buf,3);
501 	buf[0] = crc >> 8;
502 	buf[1] = crc & 0xFF;
504 	dprintk("firmware crc is 0x%02X 0x%02X\n", buf[0], buf[1]);
507 	nxt200x_writebytes(state, 0x2C, buf,2);
510 	nxt200x_readbytes(state, 0x2C, buf, 1);
513 	buf[0] = 0x80;
514 	nxt200x_writebytes(state, 0x2B, buf,1);
523 	u8 buf[5];
530 		buf[0] = 0x04;
531 		nxt200x_writebytes(state, 0x14, buf, 1);
532 		buf[0] = 0x00;
533 		nxt200x_writebytes(state, 0x17, buf, 1);
556 		fe->ops.tuner_ops.calc_regs(fe, buf, 5);
559 		nxt200x_writetuner(state, buf);
569 			buf[0] = 0x74;
572 			buf[0] = 0x70;
577 	nxt200x_writebytes(state, 0x42, buf, 1);
582 			buf[0] = 0x87;
585 			buf[0] = 0x07;
590 	nxt200x_writebytes(state, 0x57, buf, 1);
593 	buf[0] = 0x10;
594 	buf[1] = 0x00;
597 			nxt200x_writereg_multibyte(state, 0x58, buf, 2);
600 			nxt200x_writebytes(state, 0x58, buf, 2);
609 				buf[0] = 0x68;
612 				buf[0] = 0x64;
615 				buf[0] = 0x60;
620 	buf[1] = 0x00;
623 			nxt200x_writereg_multibyte(state, 0x5C, buf, 2);
626 			nxt200x_writebytes(state, 0x5C, buf, 2);
633 	buf[0] = 0x05;
634 	nxt200x_writebytes(state, 0x43, buf, 1);
638 		buf[0] = 0x00;
639 		buf[1] = 0x00;
640 		nxt200x_writebytes(state, 0x46, buf, 2);
644 	buf[0] = 0x80;
645 	buf[1] = 0x00;
648 			nxt200x_writereg_multibyte(state, 0x4B, buf, 2);
651 			nxt200x_writebytes(state, 0x4B, buf, 2);
658 	buf[0] = 0x00;
659 	nxt200x_writebytes(state, 0x4D, buf, 1);
662 	buf[0] = 0x44;
663 	nxt200x_writebytes(state, 0x55, buf, 1);
666 	buf[0] = 0x04;
667 	nxt200x_writebytes(state, 0x41, buf, 1);
670 		nxt200x_readreg_multibyte(state, 0x80, buf, 1);
671 		buf[0] = 0x24;
672 		nxt200x_writereg_multibyte(state, 0x80, buf, 1);
675 		nxt200x_readreg_multibyte(state, 0x08, buf, 1);
676 		buf[0] = 0x10;
677 		nxt200x_writereg_multibyte(state, 0x08, buf, 1);
678 		nxt200x_readreg_multibyte(state, 0x08, buf, 1);
679 		buf[0] = 0x00;
680 		nxt200x_writereg_multibyte(state, 0x08, buf, 1);
682 		nxt200x_readreg_multibyte(state, 0x80, buf, 1);
683 		buf[0] = 0x04;
684 		nxt200x_writereg_multibyte(state, 0x80, buf, 1);
685 		buf[0] = 0x00;
686 		nxt200x_writereg_multibyte(state, 0x81, buf, 1);
687 		buf[0] = 0x80; buf[1] = 0x00; buf[2] = 0x00;
688 		nxt200x_writereg_multibyte(state, 0x82, buf, 3);
689 		nxt200x_readreg_multibyte(state, 0x88, buf, 1);
690 		buf[0] = 0x11;
691 		nxt200x_writereg_multibyte(state, 0x88, buf, 1);
692 		nxt200x_readreg_multibyte(state, 0x80, buf, 1);
693 		buf[0] = 0x44;
694 		nxt200x_writereg_multibyte(state, 0x80, buf, 1);
700 				buf[0] = 0x02;
703 				buf[0] = 0x03;
706 				buf[0] = 0x00;
711 	nxt200x_writebytes(state, 0x30, buf, 1);
714 	buf[0] = 0x00;
715 	nxt200x_writebytes(state, 0x41, buf, 1);
718 	buf[0] = 0x80;
719 	buf[1] = 0x00;
722 			nxt200x_writereg_multibyte(state, 0x49, buf, 2);
723 			nxt200x_writereg_multibyte(state, 0x4B, buf, 2);
726 			nxt200x_writebytes(state, 0x49, buf, 2);
727 			nxt200x_writebytes(state, 0x4B, buf, 2);
734 	buf[0] = 0x04;
735 	nxt200x_writebytes(state, 0x41, buf, 1);
743 		buf[0] = 0xF0;
744 		buf[1] = 0x00;
745 		nxt200x_writebytes(state, 0x5C, buf, 2);
857 	u8 buf[2];
883 	buf[0]=0x00;
884 	nxt200x_writebytes(state, 0x2B, buf, 1);
890 	buf[0] = 0x0F;
891 	nxt200x_writebytes(state, 0x08, buf, 1);
892 	buf[0] = 0x00;
893 	nxt200x_writebytes(state, 0x08, buf, 1);
896 	buf[0] = 0xF1;
897 	nxt200x_writebytes(state, 0x57, buf, 1);
900 	buf[0] = 0x20;
901 	nxt200x_writebytes(state, 0x09, buf, 1);
904 	buf[0] = 0x7E;
905 	buf[1] = 0x00;
906 	nxt200x_writebytes(state, 0xE9, buf, 2);
909 	buf[0] = 0x00;
910 	nxt200x_writebytes(state, 0xCC, buf, 1);
920 	u8 buf[3];
923 	buf[0]=0x00;
924 	nxt200x_writebytes(state, 0x1E, buf, 1);
947 	buf[0] = 0x01;
948 	nxt200x_writebytes(state, 0x19, buf, 1);
957 	buf[0] = 0xFF;
958 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
959 	buf[0] = 0x00;
960 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
963 	buf[0] = 0xD7;
964 	nxt200x_writebytes(state, 0x57, buf, 1);
967 	buf[0] = 0x07;
968 	buf[1] = 0xfe;
969 	nxt200x_writebytes(state, 0x35, buf, 2);
970 	buf[0] = 0x12;
971 	nxt200x_writebytes(state, 0x34, buf, 1);
972 	buf[0] = 0x80;
973 	nxt200x_writebytes(state, 0x21, buf, 1);
976 	buf[0] = 0x21;
977 	nxt200x_writebytes(state, 0x0A, buf, 1);
980 	buf[0] = 0x01;
981 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
984 	buf[0] = 0x7E;
985 	buf[1] = 0x00;
986 	nxt200x_writebytes(state, 0xE9, buf, 2);
989 	buf[0] = 0x00;
990 	nxt200x_writebytes(state, 0xCC, buf, 1);
993 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
994 	buf[0] = 0x00;
995 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
998 	nxt200x_readreg_multibyte(state, 0x08, buf, 1);
999 	buf[0] = 0x10;
1000 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
1001 	nxt200x_readreg_multibyte(state, 0x08, buf, 1);
1002 	buf[0] = 0x00;
1003 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
1006 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1007 	buf[0] = 0x01;
1008 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1009 	buf[0] = 0x70;
1010 	nxt200x_writereg_multibyte(state, 0x81, buf, 1);
1011 	buf[0] = 0x31; buf[1] = 0x5E; buf[2] = 0x66;
1012 	nxt200x_writereg_multibyte(state, 0x82, buf, 3);
1014 	nxt200x_readreg_multibyte(state, 0x88, buf, 1);
1015 	buf[0] = 0x11;
1016 	nxt200x_writereg_multibyte(state, 0x88, buf, 1);
1017 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1018 	buf[0] = 0x40;
1019 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1021 	nxt200x_readbytes(state, 0x10, buf, 1);
1022 	buf[0] = 0x10;
1023 	nxt200x_writebytes(state, 0x10, buf, 1);
1024 	nxt200x_readbytes(state, 0x0A, buf, 1);
1025 	buf[0] = 0x21;
1026 	nxt200x_writebytes(state, 0x0A, buf, 1);
1030 	buf[0] = 0x21;
1031 	nxt200x_writebytes(state, 0x0A, buf, 1);
1032 	buf[0] = 0x7E;
1033 	nxt200x_writebytes(state, 0xE9, buf, 1);
1034 	buf[0] = 0x00;
1035 	nxt200x_writebytes(state, 0xEA, buf, 1);
1037 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1038 	buf[0] = 0x00;
1039 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1040 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1041 	buf[0] = 0x00;
1042 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1045 	nxt200x_readreg_multibyte(state, 0x08, buf, 1);
1046 	buf[0] = 0x10;
1047 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
1048 	nxt200x_readreg_multibyte(state, 0x08, buf, 1);
1049 	buf[0] = 0x00;
1050 	nxt200x_writereg_multibyte(state, 0x08, buf, 1);
1052 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1053 	buf[0] = 0x04;
1054 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1055 	buf[0] = 0x00;
1056 	nxt200x_writereg_multibyte(state, 0x81, buf, 1);
1057 	buf[0] = 0x80; buf[1] = 0x00; buf[2] = 0x00;
1058 	nxt200x_writereg_multibyte(state, 0x82, buf, 3);
1060 	nxt200x_readreg_multibyte(state, 0x88, buf, 1);
1061 	buf[0] = 0x11;
1062 	nxt200x_writereg_multibyte(state, 0x88, buf, 1);
1064 	nxt200x_readreg_multibyte(state, 0x80, buf, 1);
1065 	buf[0] = 0x44;
1066 	nxt200x_writereg_multibyte(state, 0x80, buf, 1);
1069 	nxt200x_readbytes(state, 0x10, buf, 1);
1070 	buf[0] = 0x12;
1071 	nxt200x_writebytes(state, 0x10, buf, 1);
1072 	buf[0] = 0x04;
1073 	nxt200x_writebytes(state, 0x13, buf, 1);
1074 	buf[0] = 0x00;
1075 	nxt200x_writebytes(state, 0x16, buf, 1);
1076 	buf[0] = 0x04;
1077 	nxt200x_writebytes(state, 0x14, buf, 1);
1078 	buf[0] = 0x00;
1079 	nxt200x_writebytes(state, 0x14, buf, 1);
1080 	nxt200x_writebytes(state, 0x17, buf, 1);
1081 	nxt200x_writebytes(state, 0x14, buf, 1);
1082 	nxt200x_writebytes(state, 0x17, buf, 1);
1128 	u8 buf [] = {0,0,0,0,0};
1141 	nxt200x_readbytes(state, 0x00, buf, 5);
1142 	dprintk("NXT info: %*ph\n", 5, buf);
1145 	switch (buf[0]) {
1161 			if (buf[0] != 0x04) goto error;		/* device id */
1162 			if (buf[1] != 0x02) goto error;		/* fab id */
1163 			if (buf[2] != 0x11) goto error;		/* month */
1164 			if (buf[3] != 0x20) goto error;		/* year msb */
1165 			if (buf[4] != 0x00) goto error;		/* year lsb */
1168 			if (buf[0] != 0x05) goto error;		/* device id */
1181 	pr_err("Unknown/Unsupported NXT chip: %*ph\n", 5, buf);