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/*
* TTUSB DEC-2000-t Frontend
*
* Copyright (C) 2003 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include "dvb_frontend.h"
#include "dvb_functions.h"
static int debug = 0;
#define dprintk if (debug) printk
static struct dvb_frontend_info dec2000_frontend_info = {
.name = "TechnoTrend/Hauppauge DEC-2000-t Frontend",
.type = FE_OFDM,
.frequency_min = 51000000,
.frequency_max = 858000000,
.frequency_stepsize = 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,
};
static int dec2000_frontend_ioctl(struct dvb_frontend *fe, unsigned int cmd,
void *arg)
{
dprintk("%s\n", __FUNCTION__);
switch (cmd) {
case FE_GET_INFO:
dprintk("%s: FE_GET_INFO\n", __FUNCTION__);
memcpy(arg, &dec2000_frontend_info,
sizeof (struct dvb_frontend_info));
break;
case FE_READ_STATUS: {
fe_status_t *status = (fe_status_t *)arg;
dprintk("%s: FE_READ_STATUS\n", __FUNCTION__);
*status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
break;
}
case FE_READ_BER: {
u32 *ber = (u32 *)arg;
dprintk("%s: FE_READ_BER\n", __FUNCTION__);
*ber = 0;
return -ENOSYS;
break;
}
case FE_READ_SIGNAL_STRENGTH: {
dprintk("%s: FE_READ_SIGNAL_STRENGTH\n", __FUNCTION__);
*(s32 *)arg = 0xFF;
return -ENOSYS;
break;
}
case FE_READ_SNR:
dprintk("%s: FE_READ_SNR\n", __FUNCTION__);
*(s32 *)arg = 0;
return -ENOSYS;
break;
case FE_READ_UNCORRECTED_BLOCKS:
dprintk("%s: FE_READ_UNCORRECTED_BLOCKS\n", __FUNCTION__);
*(u32 *)arg = 0;
return -ENOSYS;
break;
case FE_SET_FRONTEND:{
struct dvb_frontend_parameters *p =
(struct dvb_frontend_parameters *)arg;
u8 b[] = { 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0xff, 0x00, 0x00, 0x00, 0xff };
u32 freq;
struct i2c_msg msg = { addr: 0x71, flags: 0, len:20 };
dprintk("%s: FE_SET_FRONTEND\n", __FUNCTION__);
dprintk(" frequency->%d\n", p->frequency);
dprintk(" symbol_rate->%d\n",
p->u.qam.symbol_rate);
dprintk(" inversion->%d\n", p->inversion);
freq = htonl(p->frequency / 1000);
memcpy(&b[4], &freq, sizeof (int));
msg.buf = b;
fe->i2c->xfer(fe->i2c, &msg, 1);
break;
}
case FE_GET_FRONTEND:
dprintk("%s: FE_GET_FRONTEND\n", __FUNCTION__);
break;
case FE_SLEEP:
dprintk("%s: FE_SLEEP\n", __FUNCTION__);
return -ENOSYS;
break;
case FE_INIT:
dprintk("%s: FE_INIT\n", __FUNCTION__);
break;
case FE_RESET:
dprintk("%s: FE_RESET\n", __FUNCTION__);
break;
default:
dprintk("%s: unknown IOCTL (0x%X)\n", __FUNCTION__, cmd);
return -EINVAL;
}
return 0;
}
static int dec2000_frontend_attach(struct dvb_i2c_bus *i2c, void **data)
{
dprintk("%s\n", __FUNCTION__);
return dvb_register_frontend(dec2000_frontend_ioctl, i2c, NULL,
&dec2000_frontend_info);
}
static void dec2000_frontend_detach(struct dvb_i2c_bus *i2c, void *data)
{
dprintk("%s\n", __FUNCTION__);
dvb_unregister_frontend(dec2000_frontend_ioctl, i2c);
}
static int __init dec2000_frontend_init(void)
{
return dvb_register_i2c_device(THIS_MODULE, dec2000_frontend_attach,
dec2000_frontend_detach);
}
static void __exit dec2000_frontend_exit(void)
{
dvb_unregister_i2c_device(dec2000_frontend_attach);
}
module_init(dec2000_frontend_init);
module_exit(dec2000_frontend_exit);
MODULE_DESCRIPTION("TechnoTrend/Hauppauge DEC-2000-t Frontend");
MODULE_AUTHOR("Alex Woods <linux-dvb@giblets.org");
MODULE_LICENSE("GPL");
MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug, "Debug level");
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