mantis_vp1033.c

  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};