1/* SPDX-License-Identifier: GPL-2.0-only */
2/* z0194a.h Sharp z0194a tuner support
3*
4* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
5*
6* see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
7*/
8
9#ifndef Z0194A
10#define Z0194A
11
12static int sharp_z0194a_set_symbol_rate(struct dvb_frontend *fe,
13					 u32 srate, u32 ratio)
14{
15	u8 aclk = 0;
16	u8 bclk = 0;
17
18	if (srate < 1500000) {
19		aclk = 0xb7; bclk = 0x47; }
20	else if (srate < 3000000) {
21		aclk = 0xb7; bclk = 0x4b; }
22	else if (srate < 7000000) {
23		aclk = 0xb7; bclk = 0x4f; }
24	else if (srate < 14000000) {
25		aclk = 0xb7; bclk = 0x53; }
26	else if (srate < 30000000) {
27		aclk = 0xb6; bclk = 0x53; }
28	else if (srate < 45000000) {
29		aclk = 0xb4; bclk = 0x51; }
30
31	stv0299_writereg(fe, 0x13, aclk);
32	stv0299_writereg(fe, 0x14, bclk);
33	stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
34	stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
35	stv0299_writereg(fe, 0x21, (ratio) & 0xf0);
36
37	return 0;
38}
39
40static u8 sharp_z0194a_inittab[] = {
41	0x01, 0x15,
42	0x02, 0x30,
43	0x03, 0x00,
44	0x04, 0x7d,   /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
45	0x05, 0x35,   /* I2CT = 0, SCLT = 1, SDAT = 1 */
46	0x06, 0x40,   /* DAC not used, set to high impendance mode */
47	0x07, 0x00,   /* DAC LSB */
48	0x08, 0x40,   /* DiSEqC off, LNB power on OP2/LOCK pin on */
49	0x09, 0x00,   /* FIFO */
50	0x0c, 0x51,   /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
51	0x0d, 0x82,   /* DC offset compensation = ON, beta_agc1 = 2 */
52	0x0e, 0x23,   /* alpha_tmg = 2, beta_tmg = 3 */
53	0x10, 0x3f,   /* AGC2  0x3d */
54	0x11, 0x84,
55	0x12, 0xb9,
56	0x15, 0xc9,   /* lock detector threshold */
57	0x16, 0x00,
58	0x17, 0x00,
59	0x18, 0x00,
60	0x19, 0x00,
61	0x1a, 0x00,
62	0x1f, 0x50,
63	0x20, 0x00,
64	0x21, 0x00,
65	0x22, 0x00,
66	0x23, 0x00,
67	0x28, 0x00,  /* out imp: normal  out type: parallel FEC mode:0 */
68	0x29, 0x1e,  /* 1/2 threshold */
69	0x2a, 0x14,  /* 2/3 threshold */
70	0x2b, 0x0f,  /* 3/4 threshold */
71	0x2c, 0x09,  /* 5/6 threshold */
72	0x2d, 0x05,  /* 7/8 threshold */
73	0x2e, 0x01,
74	0x31, 0x1f,  /* test all FECs */
75	0x32, 0x19,  /* viterbi and synchro search */
76	0x33, 0xfc,  /* rs control */
77	0x34, 0x93,  /* error control */
78	0x0f, 0x52,
79	0xff, 0xff
80};
81
82#endif
83