391 lines
12 KiB
C
391 lines
12 KiB
C
/*
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* dvb_frontend.h
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*
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* Copyright (C) 2001 convergence integrated media GmbH
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* Copyright (C) 2004 convergence GmbH
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*
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* Written by Ralph Metzler
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* Overhauled by Holger Waechtler
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* Kernel I2C stuff by Michael Hunold <hunold@convergence.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _DVB_FRONTEND_H_
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#define _DVB_FRONTEND_H_
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#include <linux/types.h>
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#include <linux/sched.h>
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#include <linux/ioctl.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/delay.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <linux/dvb/frontend.h>
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#include "dvbdev.h"
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struct dvb_frontend_tune_settings {
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int min_delay_ms;
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int step_size;
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int max_drift;
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struct dvb_frontend_parameters parameters;
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};
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struct dvb_frontend;
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struct dvb_tuner_info {
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char name[128];
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u32 frequency_min;
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u32 frequency_max;
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u32 frequency_step;
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u32 bandwidth_min;
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u32 bandwidth_max;
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u32 bandwidth_step;
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};
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struct analog_parameters {
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unsigned int frequency;
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unsigned int mode;
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unsigned int audmode;
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u64 std;
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};
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enum dvbfe_modcod {
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DVBFE_MODCOD_DUMMY_PLFRAME = 0,
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DVBFE_MODCOD_QPSK_1_4,
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DVBFE_MODCOD_QPSK_1_3,
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DVBFE_MODCOD_QPSK_2_5,
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DVBFE_MODCOD_QPSK_1_2,
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DVBFE_MODCOD_QPSK_3_5,
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DVBFE_MODCOD_QPSK_2_3,
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DVBFE_MODCOD_QPSK_3_4,
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DVBFE_MODCOD_QPSK_4_5,
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DVBFE_MODCOD_QPSK_5_6,
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DVBFE_MODCOD_QPSK_8_9,
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DVBFE_MODCOD_QPSK_9_10,
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DVBFE_MODCOD_8PSK_3_5,
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DVBFE_MODCOD_8PSK_2_3,
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DVBFE_MODCOD_8PSK_3_4,
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DVBFE_MODCOD_8PSK_5_6,
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DVBFE_MODCOD_8PSK_8_9,
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DVBFE_MODCOD_8PSK_9_10,
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DVBFE_MODCOD_16APSK_2_3,
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DVBFE_MODCOD_16APSK_3_4,
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DVBFE_MODCOD_16APSK_4_5,
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DVBFE_MODCOD_16APSK_5_6,
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DVBFE_MODCOD_16APSK_8_9,
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DVBFE_MODCOD_16APSK_9_10,
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DVBFE_MODCOD_32APSK_3_4,
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DVBFE_MODCOD_32APSK_4_5,
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DVBFE_MODCOD_32APSK_5_6,
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DVBFE_MODCOD_32APSK_8_9,
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DVBFE_MODCOD_32APSK_9_10,
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DVBFE_MODCOD_RESERVED_1,
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DVBFE_MODCOD_BPSK_1_3,
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DVBFE_MODCOD_BPSK_1_4,
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DVBFE_MODCOD_RESERVED_2
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};
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enum tuner_param {
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DVBFE_TUNER_FREQUENCY = (1 << 0),
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DVBFE_TUNER_TUNERSTEP = (1 << 1),
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DVBFE_TUNER_IFFREQ = (1 << 2),
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DVBFE_TUNER_BANDWIDTH = (1 << 3),
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DVBFE_TUNER_REFCLOCK = (1 << 4),
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DVBFE_TUNER_IQSENSE = (1 << 5),
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DVBFE_TUNER_DUMMY = (1 << 31)
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};
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/*
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* ALGO_HW: (Hardware Algorithm)
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* ----------------------------------------------------------------
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* Devices that support this algorithm do everything in hardware
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* and no software support is needed to handle them.
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* Requesting these devices to LOCK is the only thing required,
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* device is supposed to do everything in the hardware.
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*
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* ALGO_SW: (Software Algorithm)
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* ----------------------------------------------------------------
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* These are dumb devices, that require software to do everything
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*
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* ALGO_CUSTOM: (Customizable Agorithm)
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* ----------------------------------------------------------------
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* Devices having this algorithm can be customized to have specific
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* algorithms in the frontend driver, rather than simply doing a
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* software zig-zag. In this case the zigzag maybe hardware assisted
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* or it maybe completely done in hardware. In all cases, usage of
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* this algorithm, in conjunction with the search and track
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* callbacks, utilizes the driver specific algorithm.
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*
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* ALGO_RECOVERY: (Recovery Algorithm)
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* ----------------------------------------------------------------
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* These devices have AUTO recovery capabilities from LOCK failure
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*/
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enum dvbfe_algo {
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DVBFE_ALGO_HW = (1 << 0),
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DVBFE_ALGO_SW = (1 << 1),
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DVBFE_ALGO_CUSTOM = (1 << 2),
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DVBFE_ALGO_RECOVERY = (1 << 31)
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};
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struct tuner_state {
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u32 frequency;
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u32 tunerstep;
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u32 ifreq;
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u32 bandwidth;
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u32 iqsense;
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u32 refclock;
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};
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/*
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* search callback possible return status
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*
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* DVBFE_ALGO_SEARCH_SUCCESS
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* The frontend search algorithm completed and returned successfully
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*
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* DVBFE_ALGO_SEARCH_ASLEEP
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* The frontend search algorithm is sleeping
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*
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* DVBFE_ALGO_SEARCH_FAILED
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* The frontend search for a signal failed
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*
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* DVBFE_ALGO_SEARCH_INVALID
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* The frontend search algorith was probably supplied with invalid
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* parameters and the search is an invalid one
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*
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* DVBFE_ALGO_SEARCH_ERROR
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* The frontend search algorithm failed due to some error
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*
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* DVBFE_ALGO_SEARCH_AGAIN
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* The frontend search algorithm was requested to search again
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*/
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enum dvbfe_search {
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DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0),
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DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1),
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DVBFE_ALGO_SEARCH_FAILED = (1 << 2),
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DVBFE_ALGO_SEARCH_INVALID = (1 << 3),
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DVBFE_ALGO_SEARCH_AGAIN = (1 << 4),
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DVBFE_ALGO_SEARCH_ERROR = (1 << 31),
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};
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struct dvb_tuner_ops {
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struct dvb_tuner_info info;
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int (*release)(struct dvb_frontend *fe);
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int (*init)(struct dvb_frontend *fe);
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int (*sleep)(struct dvb_frontend *fe);
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/** This is for simple PLLs - set all parameters in one go. */
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int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);
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/** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
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int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len);
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/** This is to allow setting tuner-specific configs */
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int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
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int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency);
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int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
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#define TUNER_STATUS_LOCKED 1
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#define TUNER_STATUS_STEREO 2
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int (*get_status)(struct dvb_frontend *fe, u32 *status);
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int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
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/** These are provided separately from set_params in order to facilitate silicon
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* tuners which require sophisticated tuning loops, controlling each parameter separately. */
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int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
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int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
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/*
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* These are provided separately from set_params in order to facilitate silicon
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* tuners which require sophisticated tuning loops, controlling each parameter separately.
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*/
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int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
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int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
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};
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struct analog_demod_info {
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char *name;
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};
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struct analog_demod_ops {
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struct analog_demod_info info;
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void (*set_params)(struct dvb_frontend *fe,
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struct analog_parameters *params);
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int (*has_signal)(struct dvb_frontend *fe);
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int (*is_stereo)(struct dvb_frontend *fe);
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int (*get_afc)(struct dvb_frontend *fe);
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void (*tuner_status)(struct dvb_frontend *fe);
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void (*standby)(struct dvb_frontend *fe);
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void (*release)(struct dvb_frontend *fe);
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int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
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/** This is to allow setting tuner-specific configuration */
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int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
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};
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struct dvb_frontend_ops {
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struct dvb_frontend_info info;
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void (*release)(struct dvb_frontend* fe);
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void (*release_sec)(struct dvb_frontend* fe);
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int (*init)(struct dvb_frontend* fe);
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int (*sleep)(struct dvb_frontend* fe);
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int (*write)(struct dvb_frontend* fe, u8* buf, int len);
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/* if this is set, it overrides the default swzigzag */
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int (*tune)(struct dvb_frontend* fe,
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struct dvb_frontend_parameters* params,
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unsigned int mode_flags,
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unsigned int *delay,
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fe_status_t *status);
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/* get frontend tuning algorithm from the module */
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enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);
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/* these two are only used for the swzigzag code */
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int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
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int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings);
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int (*get_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
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int (*read_status)(struct dvb_frontend* fe, fe_status_t* status);
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int (*read_ber)(struct dvb_frontend* fe, u32* ber);
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int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength);
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int (*read_snr)(struct dvb_frontend* fe, u16* snr);
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int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks);
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int (*diseqc_reset_overload)(struct dvb_frontend* fe);
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int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd);
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int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply);
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int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd);
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int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone);
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int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
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int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg);
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int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
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int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
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int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
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/* These callbacks are for devices that implement their own
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* tuning algorithms, rather than a simple swzigzag
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*/
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enum dvbfe_search (*search)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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int (*track)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
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struct dvb_tuner_ops tuner_ops;
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struct analog_demod_ops analog_ops;
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int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
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int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
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};
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#define MAX_EVENT 8
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struct dvb_fe_events {
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struct dvb_frontend_event events[MAX_EVENT];
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int eventw;
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int eventr;
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int overflow;
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wait_queue_head_t wait_queue;
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struct mutex mtx;
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};
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struct dtv_frontend_properties {
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/* Cache State */
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u32 state;
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u32 frequency;
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fe_modulation_t modulation;
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fe_sec_voltage_t voltage;
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fe_sec_tone_mode_t sectone;
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fe_spectral_inversion_t inversion;
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fe_code_rate_t fec_inner;
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fe_transmit_mode_t transmission_mode;
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u32 bandwidth_hz; /* 0 = AUTO */
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fe_guard_interval_t guard_interval;
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fe_hierarchy_t hierarchy;
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u32 symbol_rate;
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fe_code_rate_t code_rate_HP;
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fe_code_rate_t code_rate_LP;
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fe_pilot_t pilot;
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fe_rolloff_t rolloff;
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fe_delivery_system_t delivery_system;
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/* ISDB-T specifics */
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u8 isdbt_partial_reception;
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u8 isdbt_sb_mode;
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u8 isdbt_sb_subchannel;
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u32 isdbt_sb_segment_idx;
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u32 isdbt_sb_segment_count;
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u8 isdbt_layer_enabled;
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struct {
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u8 segment_count;
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fe_code_rate_t fec;
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fe_modulation_t modulation;
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u8 interleaving;
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} layer[3];
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/* ISDB-T specifics */
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u32 isdbs_ts_id;
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};
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struct dvb_frontend {
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struct dvb_frontend_ops ops;
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struct dvb_adapter *dvb;
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void *demodulator_priv;
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void *tuner_priv;
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void *frontend_priv;
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void *sec_priv;
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void *analog_demod_priv;
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struct dtv_frontend_properties dtv_property_cache;
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#define DVB_FRONTEND_COMPONENT_TUNER 0
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int (*callback)(void *adapter_priv, int component, int cmd, int arg);
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int id;
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};
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extern int dvb_register_frontend(struct dvb_adapter *dvb,
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struct dvb_frontend *fe);
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extern int dvb_unregister_frontend(struct dvb_frontend *fe);
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extern void dvb_frontend_detach(struct dvb_frontend *fe);
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extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
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extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec);
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extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime);
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#endif
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