300 lines
7.7 KiB
C
300 lines
7.7 KiB
C
/*
|
|
* TTUSB DEC Frontend Driver
|
|
*
|
|
* Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <media/dvb_frontend.h>
|
|
#include "ttusbdecfe.h"
|
|
|
|
|
|
#define LOF_HI 10600000
|
|
#define LOF_LO 9750000
|
|
|
|
struct ttusbdecfe_state {
|
|
|
|
/* configuration settings */
|
|
const struct ttusbdecfe_config* config;
|
|
|
|
struct dvb_frontend frontend;
|
|
|
|
u8 hi_band;
|
|
u8 voltage;
|
|
};
|
|
|
|
|
|
static int ttusbdecfe_dvbs_read_status(struct dvb_frontend *fe,
|
|
enum fe_status *status)
|
|
{
|
|
*status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
|
|
FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int ttusbdecfe_dvbt_read_status(struct dvb_frontend *fe,
|
|
enum fe_status *status)
|
|
{
|
|
struct ttusbdecfe_state* state = fe->demodulator_priv;
|
|
u8 b[] = { 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00 };
|
|
u8 result[4];
|
|
int len, ret;
|
|
|
|
*status=0;
|
|
|
|
ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result);
|
|
if(ret)
|
|
return ret;
|
|
|
|
if(len != 4) {
|
|
printk(KERN_ERR "%s: unexpected reply\n", __func__);
|
|
return -EIO;
|
|
}
|
|
|
|
switch(result[3]) {
|
|
case 1: /* not tuned yet */
|
|
case 2: /* no signal/no lock*/
|
|
break;
|
|
case 3: /* signal found and locked*/
|
|
*status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
|
|
FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
|
|
break;
|
|
case 4:
|
|
*status = FE_TIMEDOUT;
|
|
break;
|
|
default:
|
|
pr_info("%s: returned unknown value: %d\n",
|
|
__func__, result[3]);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
u8 b[] = { 0x00, 0x00, 0x00, 0x03,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x01,
|
|
0x00, 0x00, 0x00, 0xff,
|
|
0x00, 0x00, 0x00, 0xff };
|
|
|
|
__be32 freq = htonl(p->frequency / 1000);
|
|
memcpy(&b[4], &freq, sizeof (u32));
|
|
state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe,
|
|
struct dvb_frontend_tune_settings* fesettings)
|
|
{
|
|
fesettings->min_delay_ms = 1500;
|
|
/* Drift compensation makes no sense for DVB-T */
|
|
fesettings->step_size = 0;
|
|
fesettings->max_drift = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
|
|
u8 b[] = { 0x00, 0x00, 0x00, 0x01,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x01,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00 };
|
|
__be32 freq;
|
|
__be32 sym_rate;
|
|
__be32 band;
|
|
__be32 lnb_voltage;
|
|
|
|
freq = htonl(p->frequency +
|
|
(state->hi_band ? LOF_HI : LOF_LO));
|
|
memcpy(&b[4], &freq, sizeof(u32));
|
|
sym_rate = htonl(p->symbol_rate);
|
|
memcpy(&b[12], &sym_rate, sizeof(u32));
|
|
band = htonl(state->hi_band ? LOF_HI : LOF_LO);
|
|
memcpy(&b[24], &band, sizeof(u32));
|
|
lnb_voltage = htonl(state->voltage);
|
|
memcpy(&b[28], &lnb_voltage, sizeof(u32));
|
|
|
|
state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
|
|
{
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
u8 b[] = { 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00 };
|
|
|
|
if (cmd->msg_len > sizeof(b) - 4)
|
|
return -EINVAL;
|
|
|
|
memcpy(&b[4], cmd->msg, cmd->msg_len);
|
|
|
|
state->config->send_command(fe, 0x72,
|
|
sizeof(b) - (6 - cmd->msg_len), b,
|
|
NULL, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend *fe,
|
|
enum fe_sec_tone_mode tone)
|
|
{
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
|
|
state->hi_band = (SEC_TONE_ON == tone);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend *fe,
|
|
enum fe_sec_voltage voltage)
|
|
{
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
|
|
switch (voltage) {
|
|
case SEC_VOLTAGE_13:
|
|
state->voltage = 13;
|
|
break;
|
|
case SEC_VOLTAGE_18:
|
|
state->voltage = 18;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ttusbdecfe_release(struct dvb_frontend* fe)
|
|
{
|
|
struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv;
|
|
kfree(state);
|
|
}
|
|
|
|
static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops;
|
|
|
|
struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config)
|
|
{
|
|
struct ttusbdecfe_state* state = NULL;
|
|
|
|
/* allocate memory for the internal state */
|
|
state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
return NULL;
|
|
|
|
/* setup the state */
|
|
state->config = config;
|
|
|
|
/* create dvb_frontend */
|
|
memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
return &state->frontend;
|
|
}
|
|
|
|
static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops;
|
|
|
|
struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config)
|
|
{
|
|
struct ttusbdecfe_state* state = NULL;
|
|
|
|
/* allocate memory for the internal state */
|
|
state = kmalloc(sizeof(struct ttusbdecfe_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
return NULL;
|
|
|
|
/* setup the state */
|
|
state->config = config;
|
|
state->voltage = 0;
|
|
state->hi_band = 0;
|
|
|
|
/* create dvb_frontend */
|
|
memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
return &state->frontend;
|
|
}
|
|
|
|
static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops = {
|
|
.delsys = { SYS_DVBT },
|
|
.info = {
|
|
.name = "TechnoTrend/Hauppauge DEC2000-t Frontend",
|
|
.frequency_min_hz = 51 * MHz,
|
|
.frequency_max_hz = 858 * MHz,
|
|
.frequency_stepsize_hz = 62500,
|
|
.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
|
|
FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
|
|
FE_CAN_HIERARCHY_AUTO,
|
|
},
|
|
|
|
.release = ttusbdecfe_release,
|
|
|
|
.set_frontend = ttusbdecfe_dvbt_set_frontend,
|
|
|
|
.get_tune_settings = ttusbdecfe_dvbt_get_tune_settings,
|
|
|
|
.read_status = ttusbdecfe_dvbt_read_status,
|
|
};
|
|
|
|
static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops = {
|
|
.delsys = { SYS_DVBS },
|
|
.info = {
|
|
.name = "TechnoTrend/Hauppauge DEC3000-s Frontend",
|
|
.frequency_min_hz = 950 * MHz,
|
|
.frequency_max_hz = 2150 * MHz,
|
|
.frequency_stepsize_hz = 125 * kHz,
|
|
.symbol_rate_min = 1000000, /* guessed */
|
|
.symbol_rate_max = 45000000, /* guessed */
|
|
.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
FE_CAN_QPSK
|
|
},
|
|
|
|
.release = ttusbdecfe_release,
|
|
|
|
.set_frontend = ttusbdecfe_dvbs_set_frontend,
|
|
|
|
.read_status = ttusbdecfe_dvbs_read_status,
|
|
|
|
.diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd,
|
|
.set_voltage = ttusbdecfe_dvbs_set_voltage,
|
|
.set_tone = ttusbdecfe_dvbs_set_tone,
|
|
};
|
|
|
|
MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver");
|
|
MODULE_AUTHOR("Alex Woods/Andrew de Quincey");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
EXPORT_SYMBOL(ttusbdecfe_dvbt_attach);
|
|
EXPORT_SYMBOL(ttusbdecfe_dvbs_attach);
|