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
26 static 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
lgtdqcs001f_tuner_set(struct dvb_frontend * fe)74 static 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
lgtdqcs001f_set_symbol_rate(struct dvb_frontend * fe,u32 srate,u32 ratio)106 static 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
141 static 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
vp1033_frontend_init(struct mantis_pci * mantis,struct dvb_frontend * fe)152 static 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
188 struct 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