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1 | /* |
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 | ||
28 | static u8 alps_bsru6_inittab[] = { | |
29 | 0x01, 0x15, | |
9d8e1b54 | 30 | 0x02, 0x30, |
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31 | 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 | ||
70 | static 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 | ||
14d24d14 | 104 | static int alps_bsru6_tuner_set_params(struct dvb_frontend *fe) |
265366e8 | 105 | { |
e7e10deb | 106 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
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107 | u8 buf[4]; |
108 | u32 div; | |
109 | struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) }; | |
c72bf909 | 110 | struct i2c_adapter *i2c = fe->tuner_priv; |
265366e8 | 111 | |
e7e10deb | 112 | if ((p->frequency < 950000) || (p->frequency > 2150000)) |
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113 | return -EINVAL; |
114 | ||
e7e10deb | 115 | div = (p->frequency + (125 - 1)) / 125; /* round correctly */ |
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116 | buf[0] = (div >> 8) & 0x7f; |
117 | buf[1] = div & 0xff; | |
118 | buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4; | |
119 | buf[3] = 0xC4; | |
120 | ||
e7e10deb | 121 | if (p->frequency > 1530000) |
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122 | buf[3] = 0xc0; |
123 | ||
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124 | if (fe->ops.i2c_gate_ctrl) |
125 | fe->ops.i2c_gate_ctrl(fe, 1); | |
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126 | if (i2c_transfer(i2c, &msg, 1) != 1) |
127 | return -EIO; | |
128 | return 0; | |
129 | } | |
130 | ||
131 | static 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, | |
da2c7f66 | 137 | .lock_output = STV0299_LOCKOUTPUT_1, |
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138 | .volt13_op0_op1 = STV0299_VOLT13_OP1, |
139 | .min_delay_ms = 100, | |
140 | .set_symbol_rate = alps_bsru6_set_symbol_rate, | |
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141 | }; |
142 | ||
143 | #endif |