90 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * bsbe1.h - ALPS BSBE1 tuner support4 *5 * the project's page is at https://linuxtv.org6 */7 8#ifndef BSBE1_H9#define BSBE1_H10 11static u8 alps_bsbe1_inittab[] = {12 0x01, 0x15, /* XTAL = 4MHz, VCO = 352 MHz */13 0x02, 0x30, /* MCLK = 88 MHz */14 0x03, 0x00, /* ACR output 0 */15 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */16 0x05, 0x05, /* I2CT = 0, SCLT = 1, SDAT = 1 */17 0x06, 0x00, /* DAC output 0 */18 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */19 0x09, 0x00, /* FIFO */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 */30 0xff, 0xff31};32 33 34static 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 55static int alps_bsbe1_tuner_set_params(struct dvb_frontend *fe)56{57 struct dtv_frontend_properties *p = &fe->dtv_property_cache;58 int ret;59 u8 data[4];60 u32 div;61 struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };62 struct i2c_adapter *i2c = fe->tuner_priv;63 64 if ((p->frequency < 950000) || (p->frequency > 2150000))65 return -EINVAL;66 67 div = p->frequency / 1000;68 data[0] = (div >> 8) & 0x7f;69 data[1] = div & 0xff;70 data[2] = 0x80 | ((div & 0x18000) >> 10) | 0x1;71 data[3] = 0xe0;72 73 if (fe->ops.i2c_gate_ctrl)74 fe->ops.i2c_gate_ctrl(fe, 1);75 ret = i2c_transfer(i2c, &msg, 1);76 return (ret != 1) ? -EIO : 0;77}78 79static 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,87};88 89#endif90