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authoretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
committeretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
commitab959d7b4194715870128e616b8e29d4a101e488 (patch)
tree61a746231d30817be73416a7d67763fd677a1042 /lib/libdvbapi/dvbfe.h
parent6b350466c4902c5b137e0efaf1d189128a7f18f5 (diff)
downloadlinux-dvb-apps-ab959d7b4194715870128e616b8e29d4a101e488.tar.gz
Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207
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+/*
+ * libdvbfe - a DVB frontend library
+ *
+ * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
+ * Copyright (C) 2005 Manu Abraham <abraham.manu@gmail.com>
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef LIBDVBFE_H
+#define LIBDVBFE_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+
+/**
+ * The types of frontend we support.
+ */
+enum dvbfe_type {
+ DVBFE_TYPE_DVBS,
+ DVBFE_TYPE_DVBC,
+ DVBFE_TYPE_DVBT,
+ DVBFE_TYPE_ATSC,
+};
+
+enum dvbfe_spectral_inversion {
+ DVBFE_INVERSION_OFF,
+ DVBFE_INVERSION_ON,
+ DVBFE_INVERSION_AUTO
+};
+
+enum dvbfe_code_rate {
+ DVBFE_FEC_NONE,
+ DVBFE_FEC_1_2,
+ DVBFE_FEC_2_3,
+ DVBFE_FEC_3_4,
+ DVBFE_FEC_4_5,
+ DVBFE_FEC_5_6,
+ DVBFE_FEC_6_7,
+ DVBFE_FEC_7_8,
+ DVBFE_FEC_8_9,
+ DVBFE_FEC_AUTO
+};
+
+enum dvbfe_dvbt_const {
+ DVBFE_DVBT_CONST_QPSK,
+ DVBFE_DVBT_CONST_QAM_16,
+ DVBFE_DVBT_CONST_QAM_32,
+ DVBFE_DVBT_CONST_QAM_64,
+ DVBFE_DVBT_CONST_QAM_128,
+ DVBFE_DVBT_CONST_QAM_256,
+ DVBFE_DVBT_CONST_AUTO
+};
+
+enum dvbfe_dvbc_mod {
+ DVBFE_DVBC_MOD_QAM_16,
+ DVBFE_DVBC_MOD_QAM_32,
+ DVBFE_DVBC_MOD_QAM_64,
+ DVBFE_DVBC_MOD_QAM_128,
+ DVBFE_DVBC_MOD_QAM_256,
+ DVBFE_DVBC_MOD_AUTO,
+};
+
+enum dvbfe_atsc_mod {
+ DVBFE_ATSC_MOD_QAM_64,
+ DVBFE_ATSC_MOD_QAM_256,
+ DVBFE_ATSC_MOD_VSB_8,
+ DVBFE_ATSC_MOD_VSB_16,
+ DVBFE_ATSC_MOD_AUTO
+};
+
+enum dvbfe_dvbt_transmit_mode {
+ DVBFE_DVBT_TRANSMISSION_MODE_2K,
+ DVBFE_DVBT_TRANSMISSION_MODE_8K,
+ DVBFE_DVBT_TRANSMISSION_MODE_AUTO
+};
+
+enum dvbfe_dvbt_bandwidth {
+ DVBFE_DVBT_BANDWIDTH_8_MHZ,
+ DVBFE_DVBT_BANDWIDTH_7_MHZ,
+ DVBFE_DVBT_BANDWIDTH_6_MHZ,
+ DVBFE_DVBT_BANDWIDTH_AUTO
+};
+
+enum dvbfe_dvbt_guard_interval {
+ DVBFE_DVBT_GUARD_INTERVAL_1_32,
+ DVBFE_DVBT_GUARD_INTERVAL_1_16,
+ DVBFE_DVBT_GUARD_INTERVAL_1_8,
+ DVBFE_DVBT_GUARD_INTERVAL_1_4,
+ DVBFE_DVBT_GUARD_INTERVAL_AUTO
+};
+
+enum dvbfe_dvbt_hierarchy {
+ DVBFE_DVBT_HIERARCHY_NONE,
+ DVBFE_DVBT_HIERARCHY_1,
+ DVBFE_DVBT_HIERARCHY_2,
+ DVBFE_DVBT_HIERARCHY_4,
+ DVBFE_DVBT_HIERARCHY_AUTO
+};
+
+/**
+ * Structure used to store and communicate frontend parameters.
+ */
+struct dvbfe_parameters {
+ uint32_t frequency;
+ enum dvbfe_spectral_inversion inversion;
+ union {
+ struct {
+ uint32_t symbol_rate;
+ enum dvbfe_code_rate fec_inner;
+ } dvbs;
+
+ struct {
+ uint32_t symbol_rate;
+ enum dvbfe_code_rate fec_inner;
+ enum dvbfe_dvbc_mod modulation;
+ } dvbc;
+
+ struct {
+ enum dvbfe_dvbt_bandwidth bandwidth;
+ enum dvbfe_code_rate code_rate_HP;
+ enum dvbfe_code_rate code_rate_LP;
+ enum dvbfe_dvbt_const constellation;
+ enum dvbfe_dvbt_transmit_mode transmission_mode;
+ enum dvbfe_dvbt_guard_interval guard_interval;
+ enum dvbfe_dvbt_hierarchy hierarchy_information;
+ } dvbt;
+
+ struct {
+ enum dvbfe_atsc_mod modulation;
+ } atsc;
+ } u;
+};
+
+enum dvbfe_sec_voltage {
+ DVBFE_SEC_VOLTAGE_13,
+ DVBFE_SEC_VOLTAGE_18,
+ DVBFE_SEC_VOLTAGE_OFF
+};
+
+enum dvbfe_sec_tone_mode {
+ DVBFE_SEC_TONE_ON,
+ DVBFE_SEC_TONE_OFF
+};
+
+enum dvbfe_sec_mini_cmd {
+ DVBFE_SEC_MINI_A,
+ DVBFE_SEC_MINI_B
+};
+
+/**
+ * Mask of values used in the dvbfe_get_info() call.
+ */
+enum dvbfe_info_mask {
+ DVBFE_INFO_LOCKSTATUS = 0x01,
+ DVBFE_INFO_FEPARAMS = 0x02,
+ DVBFE_INFO_BER = 0x04,
+ DVBFE_INFO_SIGNAL_STRENGTH = 0x08,
+ DVBFE_INFO_SNR = 0x10,
+ DVBFE_INFO_UNCORRECTED_BLOCKS = 0x20,
+};
+
+/**
+ * Structure containing values used by the dvbfe_get_info() call.
+ */
+struct dvbfe_info {
+ enum dvbfe_type type; /* always retrieved */
+ const char *name; /* always retrieved */
+ unsigned int signal : 1; /* } DVBFE_INFO_LOCKSTATUS */
+ unsigned int carrier : 1; /* } */
+ unsigned int viterbi : 1; /* } */
+ unsigned int sync : 1; /* } */
+ unsigned int lock : 1; /* } */
+ struct dvbfe_parameters feparams; /* DVBFE_INFO_FEPARAMS */
+ uint32_t ber; /* DVBFE_INFO_BER */
+ uint16_t signal_strength; /* DVBFE_INFO_SIGNAL_STRENGTH */
+ uint16_t snr; /* DVBFE_INFO_SNR */
+ uint32_t ucblocks; /* DVBFE_INFO_UNCORRECTED_BLOCKS */
+};
+
+/**
+ * Possible types of query used in dvbfe_get_info.
+ *
+ * DVBFE_INFO_QUERYTYPE_IMMEDIATE - interrogate frontend for most up to date values.
+ * DVBFE_INFO_QUERYTYPE_LOCKCHANGE - return details from queued lock status
+ * change events, or wait for one to occur
+ * if none are queued.
+ */
+enum dvbfe_info_querytype {
+ DVBFE_INFO_QUERYTYPE_IMMEDIATE,
+ DVBFE_INFO_QUERYTYPE_LOCKCHANGE,
+};
+
+
+/**
+ * Frontend handle datatype.
+ */
+struct dvbfe_handle;
+
+/**
+ * Open a DVB frontend.
+ *
+ * @param adapter DVB adapter ID.
+ * @param frontend Frontend ID of that adapter to open.
+ * @param readonly If 1, frontend will be opened in readonly mode only.
+ * @return A handle on success, or NULL on failure.
+ */
+extern struct dvbfe_handle *dvbfe_open(int adapter, int frontend, int readonly);
+
+/**
+ * Close a DVB frontend.
+ *
+ * @param fehandle Handle opened with dvbfe_open().
+ */
+extern void dvbfe_close(struct dvbfe_handle *handle);
+
+/**
+ * Set the frontend tuning parameters.
+ *
+ * Note: this function provides only the basic tuning operation; you might want to
+ * investigate dvbfe_set_sec() in sec.h for a unified device tuning operation.
+ *
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param params Params to set.
+ * @param timeout <0 => wait forever for lock. 0=>return immediately, >0=>
+ * number of milliseconds to wait for a lock.
+ * @return 0 on locked (or if timeout==0 and everything else worked), or
+ * nonzero on failure (including no lock).
+ */
+extern int dvbfe_set(struct dvbfe_handle *fehandle,
+ struct dvbfe_parameters *params,
+ int timeout);
+
+/**
+ * Retrieve information about the frontend.
+ *
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param querymask ORed bitmask of desired DVBFE_INFO_* values.
+ * @param result Where to put the retrieved results.
+ * @param querytype Type of query requested.
+ * @param timeout Timeout in ms to use if querytype==lockchange (0=>no timeout, <0=> wait forever).
+ * @return ORed bitmask of DVBFE_INFO_* indicating which values were read successfully.
+ */
+extern int dvbfe_get_info(struct dvbfe_handle *fehandle,
+ enum dvbfe_info_mask querymask,
+ struct dvbfe_info *result,
+ enum dvbfe_info_querytype querytype,
+ int timeout);
+
+/**
+ * Get a file descriptor for polling for lock status changes.
+ *
+ * @param fehandle Handle opened with dvbfe_open().
+ * @return FD for polling.
+ */
+extern int dvbfe_get_pollfd(struct dvbfe_handle *handle);
+
+/**
+ * Tone/Data Burst control
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param tone, SEC_TONE_ON/SEC_TONE_OFF
+ */
+extern int dvbfe_set_22k_tone(struct dvbfe_handle *handle, enum dvbfe_sec_tone_mode tone);
+
+/**
+ * 22khz Tone control
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param adapter, minicmd, SEC_MINI_A/SEC_MINI_B
+ */
+extern int dvbfe_set_tone_data_burst(struct dvbfe_handle *handle, enum dvbfe_sec_mini_cmd minicmd);
+
+/**
+ * Voltage control
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param polarization, SEC_VOLTAGE_13/SEC_VOLTAGE_18/SEC_VOLTAGE_OFF
+ */
+extern int dvbfe_set_voltage(struct dvbfe_handle *handle, enum dvbfe_sec_voltage voltage);
+
+/**
+ * High LNB voltage control (increases voltage by 1v to compensate for long cables)
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param on 1 to enable, 0 to disable.
+ */
+extern int dvbfe_set_high_lnb_voltage(struct dvbfe_handle *fehandle, int on);
+
+/**
+ * Send a legacy Dish Networks command
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param cmd, the command to send
+ */
+extern int dvbfe_do_dishnetworks_legacy_command(struct dvbfe_handle *handle, unsigned int cmd);
+
+/**
+ * Send a DiSEqC Command
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param data, a pointer to am array containing the data to be sent.
+ * @param len Length of data in bytes, max 6 bytes.
+ */
+extern int dvbfe_do_diseqc_command(struct dvbfe_handle *handle, uint8_t *data, uint8_t len);
+
+/**
+ * Read a DISEQC response from the frontend.
+ *
+ * @param fehandle Handle opened with dvbfe_open().
+ * @param timeout Timeout for DISEQC response.
+ * @param buf Buffer to store response in.
+ * @param len Number of bytes in buffer.
+ * @return >= 0 on success (number of received bytes), <0 on failure.
+ */
+extern int dvbfe_diseqc_read(struct dvbfe_handle *fehandle, int timeout, unsigned char *buf, unsigned int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // LIBDVBFE_H