// SPDX-License-Identifier: GPL-2.0 // For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview // I2C address is always 0xC0. // // Copyright (c) 2005 Mauro Carvalho Chehab <[email protected]> // // tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa // from their contributions on DScaler. #define pr_fmt(fmt) … #include <linux/i2c.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/videodev2.h> #include "tuner-i2c.h" #include "tea5767.h" static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; /*****************************************************************************/ struct tea5767_priv { … }; /*****************************************************************************/ /****************************** * Write mode register values * ******************************/ /* First register */ #define TEA5767_MUTE … #define TEA5767_SEARCH … /* Bits 0-5 for divider MSB */ /* Second register */ /* Bits 0-7 for divider LSB */ /* Third register */ /* Station search from botton to up */ #define TEA5767_SEARCH_UP … /* Searches with ADC output = 10 */ #define TEA5767_SRCH_HIGH_LVL … /* Searches with ADC output = 10 */ #define TEA5767_SRCH_MID_LVL … /* Searches with ADC output = 5 */ #define TEA5767_SRCH_LOW_LVL … /* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */ #define TEA5767_HIGH_LO_INJECT … /* Disable stereo */ #define TEA5767_MONO … /* Disable right channel and turns to mono */ #define TEA5767_MUTE_RIGHT … /* Disable left channel and turns to mono */ #define TEA5767_MUTE_LEFT … #define TEA5767_PORT1_HIGH … /* Fourth register */ #define TEA5767_PORT2_HIGH … /* Chips stops working. Only I2C bus remains on */ #define TEA5767_STDBY … /* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */ #define TEA5767_JAPAN_BAND … /* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */ #define TEA5767_XTAL_32768 … /* Cuts weak signals */ #define TEA5767_SOFT_MUTE … /* Activates high cut control */ #define TEA5767_HIGH_CUT_CTRL … /* Activates stereo noise control */ #define TEA5767_ST_NOISE_CTL … /* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */ #define TEA5767_SRCH_IND … /* Fifth register */ /* By activating, it will use Xtal at 13 MHz as reference for divider */ #define TEA5767_PLLREF_ENABLE … /* By activating, deemphasis=50, or else, deemphasis of 50us */ #define TEA5767_DEEMPH_75 … /***************************** * Read mode register values * *****************************/ /* First register */ #define TEA5767_READY_FLAG_MASK … #define TEA5767_BAND_LIMIT_MASK … /* Bits 0-5 for divider MSB after search or preset */ /* Second register */ /* Bits 0-7 for divider LSB after search or preset */ /* Third register */ #define TEA5767_STEREO_MASK … #define TEA5767_IF_CNTR_MASK … /* Fourth register */ #define TEA5767_ADC_LEVEL_MASK … /* should be 0 */ #define TEA5767_CHIP_ID_MASK … /* Fifth register */ /* Reserved for future extensions */ #define TEA5767_RESERVED_MASK … /*****************************************************************************/ static void tea5767_status_dump(struct tea5767_priv *priv, unsigned char *buffer) { … } /* Freq should be specifyed at 62.5 Hz */ static int set_radio_freq(struct dvb_frontend *fe, struct analog_parameters *params) { … } static int tea5767_read_status(struct dvb_frontend *fe, char *buffer) { … } static inline int tea5767_signal(struct dvb_frontend *fe, const char *buffer) { … } static inline int tea5767_stereo(struct dvb_frontend *fe, const char *buffer) { … } static int tea5767_get_status(struct dvb_frontend *fe, u32 *status) { … } static int tea5767_get_rf_strength(struct dvb_frontend *fe, u16 *strength) { … } static int tea5767_standby(struct dvb_frontend *fe) { … } int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr) { … } static void tea5767_release(struct dvb_frontend *fe) { … } static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency) { … } static int tea5767_set_config (struct dvb_frontend *fe, void *priv_cfg) { … } static const struct dvb_tuner_ops tea5767_tuner_ops = …; struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe, struct i2c_adapter* i2c_adap, u8 i2c_addr) { … } EXPORT_SYMBOL_GPL(…); EXPORT_SYMBOL_GPL(…); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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