1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3	Mantis VP-1033 driver
4
5	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
6
7*/
8
9#include <linux/signal.h>
10#include <linux/sched.h>
11#include <linux/interrupt.h>
12
13#include <media/dmxdev.h>
14#include <media/dvbdev.h>
15#include <media/dvb_demux.h>
16#include <media/dvb_frontend.h>
17#include <media/dvb_net.h>
18
19#include "stv0299.h"
20#include "mantis_common.h"
21#include "mantis_ioc.h"
22#include "mantis_dvb.h"
23#include "mantis_vp1033.h"
24#include "mantis_reg.h"
25
26static u8 lgtdqcs001f_inittab[] = {
27	0x01, 0x15,
28	0x02, 0x30,
29	0x03, 0x00,
30	0x04, 0x2a,
31	0x05, 0x85,
32	0x06, 0x02,
33	0x07, 0x00,
34	0x08, 0x00,
35	0x0c, 0x01,
36	0x0d, 0x81,
37	0x0e, 0x44,
38	0x0f, 0x94,
39	0x10, 0x3c,
40	0x11, 0x84,
41	0x12, 0xb9,
42	0x13, 0xb5,
43	0x14, 0x4f,
44	0x15, 0xc9,
45	0x16, 0x80,
46	0x17, 0x36,
47	0x18, 0xfb,
48	0x19, 0xcf,
49	0x1a, 0xbc,
50	0x1c, 0x2b,
51	0x1d, 0x27,
52	0x1e, 0x00,
53	0x1f, 0x0b,
54	0x20, 0xa1,
55	0x21, 0x60,
56	0x22, 0x00,
57	0x23, 0x00,
58	0x28, 0x00,
59	0x29, 0x28,
60	0x2a, 0x14,
61	0x2b, 0x0f,
62	0x2c, 0x09,
63	0x2d, 0x05,
64	0x31, 0x1f,
65	0x32, 0x19,
66	0x33, 0xfc,
67	0x34, 0x13,
68	0xff, 0xff,
69};
70
71#define MANTIS_MODEL_NAME	"VP-1033"
72#define MANTIS_DEV_TYPE		"DVB-S/DSS"
73
74static int lgtdqcs001f_tuner_set(struct dvb_frontend *fe)
75{
76	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
77	struct mantis_pci *mantis	= fe->dvb->priv;
78	struct i2c_adapter *adapter	= &mantis->adapter;
79
80	u8 buf[4];
81	u32 div;
82
83
84	struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf)};
85
86	div = p->frequency / 250;
87
88	buf[0] = (div >> 8) & 0x7f;
89	buf[1] =  div & 0xff;
90	buf[2] =  0x83;
91	buf[3] =  0xc0;
92
93	if (p->frequency < 1531000)
94		buf[3] |= 0x04;
95	else
96		buf[3] &= ~0x04;
97	if (i2c_transfer(adapter, &msg, 1) < 0) {
98		dprintk(MANTIS_ERROR, 1, "Write: I2C Transfer failed");
99		return -EIO;
100	}
101	msleep_interruptible(100);
102
103	return 0;
104}
105
106static int lgtdqcs001f_set_symbol_rate(struct dvb_frontend *fe,
107				       u32 srate, u32 ratio)
108{
109	u8 aclk = 0;
110	u8 bclk = 0;
111
112	if (srate < 1500000) {
113		aclk = 0xb7;
114		bclk = 0x47;
115	} else if (srate < 3000000) {
116		aclk = 0xb7;
117		bclk = 0x4b;
118	} else if (srate < 7000000) {
119		aclk = 0xb7;
120		bclk = 0x4f;
121	} else if (srate < 14000000) {
122		aclk = 0xb7;
123		bclk = 0x53;
124	} else if (srate < 30000000) {
125		aclk = 0xb6;
126		bclk = 0x53;
127	} else if (srate < 45000000) {
128		aclk = 0xb4;
129		bclk = 0x51;
130	}
131	stv0299_writereg(fe, 0x13, aclk);
132	stv0299_writereg(fe, 0x14, bclk);
133
134	stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
135	stv0299_writereg(fe, 0x20, (ratio >>  8) & 0xff);
136	stv0299_writereg(fe, 0x21,  ratio & 0xf0);
137
138	return 0;
139}
140
141static struct stv0299_config lgtdqcs001f_config = {
142	.demod_address		= 0x68,
143	.inittab		= lgtdqcs001f_inittab,
144	.mclk			= 88000000UL,
145	.invert			= 0,
146	.skip_reinit		= 0,
147	.volt13_op0_op1		= STV0299_VOLT13_OP0,
148	.min_delay_ms		= 100,
149	.set_symbol_rate	= lgtdqcs001f_set_symbol_rate,
150};
151
152static int vp1033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
153{
154	struct i2c_adapter *adapter	= &mantis->adapter;
155
156	int err = 0;
157
158	err = mantis_frontend_power(mantis, POWER_ON);
159	if (err == 0) {
160		mantis_frontend_soft_reset(mantis);
161		msleep(250);
162
163		dprintk(MANTIS_ERROR, 1, "Probing for STV0299 (DVB-S)");
164		fe = dvb_attach(stv0299_attach, &lgtdqcs001f_config, adapter);
165
166		if (fe) {
167			fe->ops.tuner_ops.set_params = lgtdqcs001f_tuner_set;
168			dprintk(MANTIS_ERROR, 1, "found STV0299 DVB-S frontend @ 0x%02x",
169				lgtdqcs001f_config.demod_address);
170
171			dprintk(MANTIS_ERROR, 1, "Mantis DVB-S STV0299 frontend attach success");
172		} else {
173			return -1;
174		}
175	} else {
176		dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
177			adapter->name,
178			err);
179
180		return -EIO;
181	}
182	mantis->fe = fe;
183	dprintk(MANTIS_ERROR, 1, "Done!");
184
185	return 0;
186}
187
188struct mantis_hwconfig vp1033_config = {
189	.model_name		= MANTIS_MODEL_NAME,
190	.dev_type		= MANTIS_DEV_TYPE,
191	.ts_size		= MANTIS_TS_204,
192
193	.baud_rate		= MANTIS_BAUD_9600,
194	.parity			= MANTIS_PARITY_NONE,
195	.bytes			= 0,
196
197	.frontend_init		= vp1033_frontend_init,
198	.power			= GPIF_A12,
199	.reset			= GPIF_A13,
200};
201