// SPDX-License-Identifier: GPL-2.0 /* * The Virtual DTV test driver serves as a reference DVB driver and helps * validate the existing APIs in the media subsystem. It can also aid * developers working on userspace applications. * * When this module is loaded, it will attempt to modprobe 'dvb_vidtv_tuner' * and 'dvb_vidtv_demod'. * * Copyright (C) 2020 Daniel W. S. Almeida */ #include <linux/dev_printk.h> #include <linux/moduleparam.h> #include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/time.h> #include <linux/types.h> #include <linux/workqueue.h> #include <media/dvbdev.h> #include <media/media-device.h> #include "vidtv_bridge.h" #include "vidtv_common.h" #include "vidtv_demod.h" #include "vidtv_mux.h" #include "vidtv_ts.h" #include "vidtv_tuner.h" #define MUX_BUF_MIN_SZ … #define MUX_BUF_MAX_SZ … #define TUNER_DEFAULT_ADDR … #define DEMOD_DEFAULT_ADDR … #define VIDTV_DEFAULT_NETWORK_ID … #define VIDTV_DEFAULT_NETWORK_NAME … #define VIDTV_DEFAULT_TS_ID … /* * The LNBf fake parameters here are the ranges used by an * Universal (extended) European LNBf, which is likely the most common LNBf * found on Satellite digital TV system nowadays. */ #define LNB_CUT_FREQUENCY … #define LNB_LOW_FREQ … #define LNB_HIGH_FREQ … static unsigned int drop_tslock_prob_on_low_snr; module_param(drop_tslock_prob_on_low_snr, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int recover_tslock_prob_on_good_snr; module_param(recover_tslock_prob_on_good_snr, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int mock_power_up_delay_msec; module_param(mock_power_up_delay_msec, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int mock_tune_delay_msec; module_param(mock_tune_delay_msec, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int vidtv_valid_dvb_t_freqs[NUM_VALID_TUNER_FREQS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned int vidtv_valid_dvb_c_freqs[NUM_VALID_TUNER_FREQS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned int vidtv_valid_dvb_s_freqs[NUM_VALID_TUNER_FREQS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned int max_frequency_shift_hz; module_param(max_frequency_shift_hz, uint, 0444); MODULE_PARM_DESC(…) …; DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nums); /* * Influences the signal acquisition time. See ISO/IEC 13818-1 : 2000. p. 113. */ static unsigned int si_period_msec = …; module_param(si_period_msec, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int pcr_period_msec = …; module_param(pcr_period_msec, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int mux_rate_kbytes_sec = …; module_param(mux_rate_kbytes_sec, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int pcr_pid = …; module_param(pcr_pid, uint, 0444); MODULE_PARM_DESC(…) …; static unsigned int mux_buf_sz_pkts; module_param(mux_buf_sz_pkts, uint, 0444); MODULE_PARM_DESC(…) …; static u32 vidtv_bridge_mux_buf_sz_for_mux_rate(void) { … } static bool vidtv_bridge_check_demod_lock(struct vidtv_dvb *dvb, u32 n) { … } /* * called on a separate thread by the mux when new packets become available */ static void vidtv_bridge_on_new_pkts_avail(void *priv, u8 *buf, u32 npkts) { … } static int vidtv_start_streaming(struct vidtv_dvb *dvb) { … } static int vidtv_stop_streaming(struct vidtv_dvb *dvb) { … } static int vidtv_start_feed(struct dvb_demux_feed *feed) { … } static int vidtv_stop_feed(struct dvb_demux_feed *feed) { … } static struct dvb_frontend *vidtv_get_frontend_ptr(struct i2c_client *c) { … } static int vidtv_master_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num) { … } static u32 vidtv_i2c_func(struct i2c_adapter *adapter) { … } static const struct i2c_algorithm vidtv_i2c_algorithm = …; static int vidtv_bridge_i2c_register_adap(struct vidtv_dvb *dvb) { … } static int vidtv_bridge_register_adap(struct vidtv_dvb *dvb) { … } static int vidtv_bridge_dmx_init(struct vidtv_dvb *dvb) { … } static int vidtv_bridge_dmxdev_init(struct vidtv_dvb *dvb) { … } static int vidtv_bridge_probe_demod(struct vidtv_dvb *dvb, u32 n) { … } static int vidtv_bridge_probe_tuner(struct vidtv_dvb *dvb, u32 n) { … } static int vidtv_bridge_dvb_init(struct vidtv_dvb *dvb) { … } static int vidtv_bridge_probe(struct platform_device *pdev) { … } static void vidtv_bridge_remove(struct platform_device *pdev) { … } static void vidtv_bridge_dev_release(struct device *dev) { … } static struct platform_device vidtv_bridge_dev = …; static struct platform_driver vidtv_bridge_driver = …; static void __exit vidtv_bridge_exit(void) { … } static int __init vidtv_bridge_init(void) { … } module_init(…) …; module_exit(vidtv_bridge_exit); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …; MODULE_ALIAS(…) …;
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