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| /* SPDX-License-Identifier: GPL-2.0-only */
| /* z0194a.h Sharp z0194a tuner support
| *
| * Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
| *
| * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
| */
|
| #ifndef Z0194A
| #define Z0194A
|
| static int sharp_z0194a_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 u8 sharp_z0194a_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
| };
|
| #endif
|
|
