Commit | Line | Data |
---|---|---|
a0c7056f | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2f27bdce | 2 | /* |
94ad6de7 | 3 | * bsbe1.h - ALPS BSBE1 tuner support |
2f27bdce | 4 | * |
991ce92f | 5 | * the project's page is at https://linuxtv.org |
2f27bdce OE |
6 | */ |
7 | ||
8 | #ifndef BSBE1_H | |
9 | #define BSBE1_H | |
10 | ||
11 | static u8 alps_bsbe1_inittab[] = { | |
94ad6de7 OE |
12 | 0x01, 0x15, /* XTAL = 4MHz, VCO = 352 MHz */ |
13 | 0x02, 0x30, /* MCLK = 88 MHz */ | |
14 | 0x03, 0x00, /* ACR output 0 */ | |
2f27bdce | 15 | 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */ |
94ad6de7 OE |
16 | 0x05, 0x05, /* I2CT = 0, SCLT = 1, SDAT = 1 */ |
17 | 0x06, 0x00, /* DAC output 0 */ | |
2f27bdce OE |
18 | 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */ |
19 | 0x09, 0x00, /* FIFO */ | |
94ad6de7 OE |
20 | 0x0c, 0x51, /* OP1/OP0 normal, val = 1 (LNB power on) */ |
21 | 0x0d, 0x82, /* DC offset compensation = on, beta_agc1 = 2 */ | |
22 | 0x0f, 0x92, /* AGC1R */ | |
23 | 0x10, 0x34, /* AGC2O */ | |
24 | 0x11, 0x84, /* TLSR */ | |
25 | 0x12, 0xb9, /* CFD */ | |
26 | 0x15, 0xc9, /* lock detector threshold */ | |
27 | 0x28, 0x00, /* out imp: normal, type: parallel, FEC mode: QPSK */ | |
28 | 0x33, 0xfc, /* RS control */ | |
29 | 0x34, 0x93, /* count viterbi bit errors per 2E18 bytes */ | |
2f27bdce OE |
30 | 0xff, 0xff |
31 | }; | |
32 | ||
33 | ||
34 | static int alps_bsbe1_set_symbol_rate(struct dvb_frontend* fe, u32 srate, u32 ratio) | |
35 | { | |
36 | u8 aclk = 0; | |
37 | u8 bclk = 0; | |
38 | ||
39 | if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; } | |
40 | else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; } | |
41 | else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; } | |
42 | else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; } | |
43 | else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; } | |
44 | else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; } | |
45 | ||
46 | stv0299_writereg(fe, 0x13, aclk); | |
47 | stv0299_writereg(fe, 0x14, bclk); | |
48 | stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff); | |
49 | stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff); | |
50 | stv0299_writereg(fe, 0x21, (ratio ) & 0xf0); | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
14d24d14 | 55 | static int alps_bsbe1_tuner_set_params(struct dvb_frontend *fe) |
2f27bdce | 56 | { |
e7e10deb | 57 | struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
2f27bdce OE |
58 | int ret; |
59 | u8 data[4]; | |
60 | u32 div; | |
61 | struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) }; | |
c72bf909 | 62 | struct i2c_adapter *i2c = fe->tuner_priv; |
2f27bdce | 63 | |
e7e10deb | 64 | if ((p->frequency < 950000) || (p->frequency > 2150000)) |
2f27bdce OE |
65 | return -EINVAL; |
66 | ||
e7e10deb | 67 | div = p->frequency / 1000; |
2f27bdce OE |
68 | data[0] = (div >> 8) & 0x7f; |
69 | data[1] = div & 0xff; | |
94ad6de7 OE |
70 | data[2] = 0x80 | ((div & 0x18000) >> 10) | 0x1; |
71 | data[3] = 0xe0; | |
2f27bdce | 72 | |
dea74869 PB |
73 | if (fe->ops.i2c_gate_ctrl) |
74 | fe->ops.i2c_gate_ctrl(fe, 1); | |
2f27bdce OE |
75 | ret = i2c_transfer(i2c, &msg, 1); |
76 | return (ret != 1) ? -EIO : 0; | |
77 | } | |
78 | ||
79 | static struct stv0299_config alps_bsbe1_config = { | |
80 | .demod_address = 0x68, | |
81 | .inittab = alps_bsbe1_inittab, | |
82 | .mclk = 88000000UL, | |
83 | .invert = 1, | |
84 | .skip_reinit = 0, | |
85 | .min_delay_ms = 100, | |
86 | .set_symbol_rate = alps_bsbe1_set_symbol_rate, | |
2f27bdce OE |
87 | }; |
88 | ||
89 | #endif |