1/*
2	Mantis VP-1033 driver
3
4	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
5
6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.
10
11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14	GNU General Public License for more details.
15
16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19*/
20
21#include <linux/signal.h>
22#include <linux/sched.h>
23#include <linux/interrupt.h>
24
25#include "dmxdev.h"
26#include "dvbdev.h"
27#include "dvb_demux.h"
28#include "dvb_frontend.h"
29#include "dvb_net.h"
30
31#include "stv0299.h"
32#include "mantis_common.h"
33#include "mantis_ioc.h"
34#include "mantis_dvb.h"
35#include "mantis_vp1033.h"
36#include "mantis_reg.h"
37
38static u8 lgtdqcs001f_inittab[] = {
39	0x01, 0x15,
40	0x02, 0x30,
41	0x03, 0x00,
42	0x04, 0x2a,
43	0x05, 0x85,
44	0x06, 0x02,
45	0x07, 0x00,
46	0x08, 0x00,
47	0x0c, 0x01,
48	0x0d, 0x81,
49	0x0e, 0x44,
50	0x0f, 0x94,
51	0x10, 0x3c,
52	0x11, 0x84,
53	0x12, 0xb9,
54	0x13, 0xb5,
55	0x14, 0x4f,
56	0x15, 0xc9,
57	0x16, 0x80,
58	0x17, 0x36,
59	0x18, 0xfb,
60	0x19, 0xcf,
61	0x1a, 0xbc,
62	0x1c, 0x2b,
63	0x1d, 0x27,
64	0x1e, 0x00,
65	0x1f, 0x0b,
66	0x20, 0xa1,
67	0x21, 0x60,
68	0x22, 0x00,
69	0x23, 0x00,
70	0x28, 0x00,
71	0x29, 0x28,
72	0x2a, 0x14,
73	0x2b, 0x0f,
74	0x2c, 0x09,
75	0x2d, 0x05,
76	0x31, 0x1f,
77	0x32, 0x19,
78	0x33, 0xfc,
79	0x34, 0x13,
80	0xff, 0xff,
81};
82
83#define MANTIS_MODEL_NAME	"VP-1033"
84#define MANTIS_DEV_TYPE		"DVB-S/DSS"
85
86static int lgtdqcs001f_tuner_set(struct dvb_frontend *fe)
87{
88	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
89	struct mantis_pci *mantis	= fe->dvb->priv;
90	struct i2c_adapter *adapter	= &mantis->adapter;
91
92	u8 buf[4];
93	u32 div;
94
95
96	struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf)};
97
98	div = p->frequency / 250;
99
100	buf[0] = (div >> 8) & 0x7f;
101	buf[1] =  div & 0xff;
102	buf[2] =  0x83;
103	buf[3] =  0xc0;
104
105	if (p->frequency < 1531000)
106		buf[3] |= 0x04;
107	else
108		buf[3] &= ~0x04;
109	if (i2c_transfer(adapter, &msg, 1) < 0) {
110		dprintk(MANTIS_ERROR, 1, "Write: I2C Transfer failed");
111		return -EIO;
112	}
113	msleep_interruptible(100);
114
115	return 0;
116}
117
118static int lgtdqcs001f_set_symbol_rate(struct dvb_frontend *fe,
119				       u32 srate, u32 ratio)
120{
121	u8 aclk = 0;
122	u8 bclk = 0;
123
124	if (srate < 1500000) {
125		aclk = 0xb7;
126		bclk = 0x47;
127	} else if (srate < 3000000) {
128		aclk = 0xb7;
129		bclk = 0x4b;
130	} else if (srate < 7000000) {
131		aclk = 0xb7;
132		bclk = 0x4f;
133	} else if (srate < 14000000) {
134		aclk = 0xb7;
135		bclk = 0x53;
136	} else if (srate < 30000000) {
137		aclk = 0xb6;
138		bclk = 0x53;
139	} else if (srate < 45000000) {
140		aclk = 0xb4;
141		bclk = 0x51;
142	}
143	stv0299_writereg(fe, 0x13, aclk);
144	stv0299_writereg(fe, 0x14, bclk);
145
146	stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
147	stv0299_writereg(fe, 0x20, (ratio >>  8) & 0xff);
148	stv0299_writereg(fe, 0x21,  ratio & 0xf0);
149
150	return 0;
151}
152
153static struct stv0299_config lgtdqcs001f_config = {
154	.demod_address		= 0x68,
155	.inittab		= lgtdqcs001f_inittab,
156	.mclk			= 88000000UL,
157	.invert			= 0,
158	.skip_reinit		= 0,
159	.volt13_op0_op1		= STV0299_VOLT13_OP0,
160	.min_delay_ms		= 100,
161	.set_symbol_rate	= lgtdqcs001f_set_symbol_rate,
162};
163
164static int vp1033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
165{
166	struct i2c_adapter *adapter	= &mantis->adapter;
167
168	int err = 0;
169
170	err = mantis_frontend_power(mantis, POWER_ON);
171	if (err == 0) {
172		mantis_frontend_soft_reset(mantis);
173		msleep(250);
174
175		dprintk(MANTIS_ERROR, 1, "Probing for STV0299 (DVB-S)");
176		fe = dvb_attach(stv0299_attach, &lgtdqcs001f_config, adapter);
177
178		if (fe) {
179			fe->ops.tuner_ops.set_params = lgtdqcs001f_tuner_set;
180			dprintk(MANTIS_ERROR, 1, "found STV0299 DVB-S frontend @ 0x%02x",
181				lgtdqcs001f_config.demod_address);
182
183			dprintk(MANTIS_ERROR, 1, "Mantis DVB-S STV0299 frontend attach success");
184		} else {
185			return -1;
186		}
187	} else {
188		dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
189			adapter->name,
190			err);
191
192		return -EIO;
193	}
194	mantis->fe = fe;
195	dprintk(MANTIS_ERROR, 1, "Done!");
196
197	return 0;
198}
199
200struct mantis_hwconfig vp1033_config = {
201	.model_name		= MANTIS_MODEL_NAME,
202	.dev_type		= MANTIS_DEV_TYPE,
203	.ts_size		= MANTIS_TS_204,
204
205	.baud_rate		= MANTIS_BAUD_9600,
206	.parity			= MANTIS_PARITY_NONE,
207	.bytes			= 0,
208
209	.frontend_init		= vp1033_frontend_init,
210	.power			= GPIF_A12,
211	.reset			= GPIF_A13,
212};
213