blob: c2a578e1314dce5ffb4495de51c5e97277036c12 [file] [log] [blame]
Perceval Anichini265366e2006-03-16 11:22:47 -03001/*
2 * bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c)
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
20 *
21 *
22 * the project's page is at http://www.linuxtv.org
23 */
24
25#ifndef BSRU6_H
26#define BSRU6_H
27
28static u8 alps_bsru6_inittab[] = {
29 0x01, 0x15,
Malcolm Priestley9d8e1b52011-03-26 22:03:47 -030030 0x02, 0x30,
Perceval Anichini265366e2006-03-16 11:22:47 -030031 0x03, 0x00,
32 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
33 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */
34 0x06, 0x40, /* DAC not used, set to high impendance mode */
35 0x07, 0x00, /* DAC LSB */
36 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */
37 0x09, 0x00, /* FIFO */
38 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
39 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */
40 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */
41 0x10, 0x3f, // AGC2 0x3d
42 0x11, 0x84,
43 0x12, 0xb9,
44 0x15, 0xc9, // lock detector threshold
45 0x16, 0x00,
46 0x17, 0x00,
47 0x18, 0x00,
48 0x19, 0x00,
49 0x1a, 0x00,
50 0x1f, 0x50,
51 0x20, 0x00,
52 0x21, 0x00,
53 0x22, 0x00,
54 0x23, 0x00,
55 0x28, 0x00, // out imp: normal out type: parallel FEC mode:0
56 0x29, 0x1e, // 1/2 threshold
57 0x2a, 0x14, // 2/3 threshold
58 0x2b, 0x0f, // 3/4 threshold
59 0x2c, 0x09, // 5/6 threshold
60 0x2d, 0x05, // 7/8 threshold
61 0x2e, 0x01,
62 0x31, 0x1f, // test all FECs
63 0x32, 0x19, // viterbi and synchro search
64 0x33, 0xfc, // rs control
65 0x34, 0x93, // error control
66 0x0f, 0x52,
67 0xff, 0xff
68};
69
70static int alps_bsru6_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio)
71{
72 u8 aclk = 0;
73 u8 bclk = 0;
74
75 if (srate < 1500000) {
76 aclk = 0xb7;
77 bclk = 0x47;
78 } else if (srate < 3000000) {
79 aclk = 0xb7;
80 bclk = 0x4b;
81 } else if (srate < 7000000) {
82 aclk = 0xb7;
83 bclk = 0x4f;
84 } else if (srate < 14000000) {
85 aclk = 0xb7;
86 bclk = 0x53;
87 } else if (srate < 30000000) {
88 aclk = 0xb6;
89 bclk = 0x53;
90 } else if (srate < 45000000) {
91 aclk = 0xb4;
92 bclk = 0x51;
93 }
94
95 stv0299_writereg(fe, 0x13, aclk);
96 stv0299_writereg(fe, 0x14, bclk);
97 stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
98 stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
99 stv0299_writereg(fe, 0x21, ratio & 0xf0);
100
101 return 0;
102}
103
Mauro Carvalho Chehab14d24d12011-12-24 12:24:33 -0300104static int alps_bsru6_tuner_set_params(struct dvb_frontend *fe)
Perceval Anichini265366e2006-03-16 11:22:47 -0300105{
Mauro Carvalho Chehabe7e10de2011-12-23 18:27:35 -0300106 struct dtv_frontend_properties *p = &fe->dtv_property_cache;
Perceval Anichini265366e2006-03-16 11:22:47 -0300107 u8 buf[4];
108 u32 div;
109 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
Andrew de Quinceyc72bf902006-04-18 17:47:11 -0300110 struct i2c_adapter *i2c = fe->tuner_priv;
Perceval Anichini265366e2006-03-16 11:22:47 -0300111
Mauro Carvalho Chehabe7e10de2011-12-23 18:27:35 -0300112 if ((p->frequency < 950000) || (p->frequency > 2150000))
Perceval Anichini265366e2006-03-16 11:22:47 -0300113 return -EINVAL;
114
Mauro Carvalho Chehabe7e10de2011-12-23 18:27:35 -0300115 div = (p->frequency + (125 - 1)) / 125; /* round correctly */
Perceval Anichini265366e2006-03-16 11:22:47 -0300116 buf[0] = (div >> 8) & 0x7f;
117 buf[1] = div & 0xff;
118 buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4;
119 buf[3] = 0xC4;
120
Mauro Carvalho Chehabe7e10de2011-12-23 18:27:35 -0300121 if (p->frequency > 1530000)
Perceval Anichini265366e2006-03-16 11:22:47 -0300122 buf[3] = 0xc0;
123
Patrick Boettcherdea74862006-05-14 05:01:31 -0300124 if (fe->ops.i2c_gate_ctrl)
125 fe->ops.i2c_gate_ctrl(fe, 1);
Perceval Anichini265366e2006-03-16 11:22:47 -0300126 if (i2c_transfer(i2c, &msg, 1) != 1)
127 return -EIO;
128 return 0;
129}
130
131static struct stv0299_config alps_bsru6_config = {
132 .demod_address = 0x68,
133 .inittab = alps_bsru6_inittab,
134 .mclk = 88000000UL,
135 .invert = 1,
136 .skip_reinit = 0,
Oliver Endrissda2c7f62008-04-20 22:13:37 -0300137 .lock_output = STV0299_LOCKOUTPUT_1,
Perceval Anichini265366e2006-03-16 11:22:47 -0300138 .volt13_op0_op1 = STV0299_VOLT13_OP1,
139 .min_delay_ms = 100,
140 .set_symbol_rate = alps_bsru6_set_symbol_rate,
Perceval Anichini265366e2006-03-16 11:22:47 -0300141};
142
143#endif