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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * bsru6.h - ALPS BSRU6 tuner support (moved from budget-ci.c) * * the project's page is at https://linuxtv.org */ #ifndef BSRU6_H #define BSRU6_H static u8 alps_bsru6_inittab[] = { 0x01, 0x15, 0x02, 0x30, 0x03, 0x00, 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */ 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */ 0x06, 0x40, /* DAC not used, set to high impendance mode */ 0x07, 0x00, /* DAC LSB */ 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */ 0x09, 0x00, /* FIFO */ 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */ 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */ 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */ 0x10, 0x3f, // AGC2 0x3d 0x11, 0x84, 0x12, 0xb9, 0x15, 0xc9, // lock detector threshold 0x16, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00, 0x1a, 0x00, 0x1f, 0x50, 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, 0x28, 0x00, // out imp: normal out type: parallel FEC mode:0 0x29, 0x1e, // 1/2 threshold 0x2a, 0x14, // 2/3 threshold 0x2b, 0x0f, // 3/4 threshold 0x2c, 0x09, // 5/6 threshold 0x2d, 0x05, // 7/8 threshold 0x2e, 0x01, 0x31, 0x1f, // test all FECs 0x32, 0x19, // viterbi and synchro search 0x33, 0xfc, // rs control 0x34, 0x93, // error control 0x0f, 0x52, 0xff, 0xff }; static int alps_bsru6_set_symbol_rate(struct dvb_frontend *fe, u32 srate, u32 ratio) { u8 aclk = 0; u8 bclk = 0; if (srate < 1500000) { aclk = 0xb7; bclk = 0x47; } else if (srate < 3000000) { aclk = 0xb7; bclk = 0x4b; } else if (srate < 7000000) { aclk = 0xb7; bclk = 0x4f; } else if (srate < 14000000) { aclk = 0xb7; bclk = 0x53; } else if (srate < 30000000) { aclk = 0xb6; bclk = 0x53; } else if (srate < 45000000) { aclk = 0xb4; bclk = 0x51; } stv0299_writereg(fe, 0x13, aclk); stv0299_writereg(fe, 0x14, bclk); stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff); stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff); stv0299_writereg(fe, 0x21, ratio & 0xf0); return 0; } static int alps_bsru6_tuner_set_params(struct dvb_frontend *fe) { struct dtv_frontend_properties *p = &fe->dtv_property_cache; u8 buf[4]; u32 div; struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) }; struct i2c_adapter *i2c = fe->tuner_priv; if ((p->frequency < 950000) || (p->frequency > 2150000)) return -EINVAL; div = (p->frequency + (125 - 1)) / 125; /* round correctly */ buf[0] = (div >> 8) & 0x7f; buf[1] = div & 0xff; buf[2] = 0x80 | ((div & 0x18000) >> 10) | 4; buf[3] = 0xC4; if (p->frequency > 1530000) buf[3] = 0xc0; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if (i2c_transfer(i2c, &msg, 1) != 1) return -EIO; return 0; } static struct stv0299_config alps_bsru6_config = { .demod_address = 0x68, .inittab = alps_bsru6_inittab, .mclk = 88000000UL, .invert = 1, .skip_reinit = 0, .lock_output = STV0299_LOCKOUTPUT_1, .volt13_op0_op1 = STV0299_VOLT13_OP1, .min_delay_ms = 100, .set_symbol_rate = alps_bsru6_set_symbol_rate, }; #endif |