diff options
Diffstat (limited to 'drivers/media/dvb-frontends/tda1004x.h')
| -rw-r--r-- | drivers/media/dvb-frontends/tda1004x.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/tda1004x.h b/drivers/media/dvb-frontends/tda1004x.h new file mode 100644 index 000000000..e63578c0a --- /dev/null +++ b/drivers/media/dvb-frontends/tda1004x.h @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + /* + Driver for Philips tda1004xh OFDM Frontend + + (c) 2004 Andrew de Quincey + + + */ + +#ifndef TDA1004X_H +#define TDA1004X_H + +#include <linux/dvb/frontend.h> +#include <linux/firmware.h> + +enum tda10046_xtal { + TDA10046_XTAL_4M, + TDA10046_XTAL_16M, +}; + +enum tda10046_agc { + TDA10046_AGC_DEFAULT, /* original configuration */ + TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negative */ + TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */ + TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */ +}; + +/* Many (hybrid) boards use GPIO 1 and 3 + GPIO1 analog - dvb switch + GPIO3 firmware eeprom address switch +*/ +enum tda10046_gpio { + TDA10046_GPTRI = 0x00, /* All GPIOs tristate */ + TDA10046_GP00 = 0x40, /* GPIO3=0, GPIO1=0 */ + TDA10046_GP01 = 0x42, /* GPIO3=0, GPIO1=1 */ + TDA10046_GP10 = 0x48, /* GPIO3=1, GPIO1=0 */ + TDA10046_GP11 = 0x4a, /* GPIO3=1, GPIO1=1 */ + TDA10046_GP00_I = 0x80, /* GPIO3=0, GPIO1=0, invert in sleep mode*/ + TDA10046_GP01_I = 0x82, /* GPIO3=0, GPIO1=1, invert in sleep mode */ + TDA10046_GP10_I = 0x88, /* GPIO3=1, GPIO1=0, invert in sleep mode */ + TDA10046_GP11_I = 0x8a, /* GPIO3=1, GPIO1=1, invert in sleep mode */ +}; + +enum tda10046_if { + TDA10046_FREQ_3617, /* original config, 36,166 MHZ */ + TDA10046_FREQ_3613, /* 36,13 MHZ */ + TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */ + TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */ +}; + +enum tda10046_tsout { + TDA10046_TS_PARALLEL = 0x00, /* parallel transport stream, default */ + TDA10046_TS_SERIAL = 0x01, /* serial transport stream */ +}; + +struct tda1004x_config +{ + /* the demodulator's i2c address */ + u8 demod_address; + + /* does the "inversion" need inverted? */ + u8 invert; + + /* Does the OCLK signal need inverted? */ + u8 invert_oclk; + + /* parallel or serial transport stream */ + enum tda10046_tsout ts_mode; + + /* Xtal frequency, 4 or 16MHz*/ + enum tda10046_xtal xtal_freq; + + /* IF frequency */ + enum tda10046_if if_freq; + + /* AGC configuration */ + enum tda10046_agc agc_config; + + /* setting of GPIO1 and 3 */ + enum tda10046_gpio gpio_config; + + /* slave address and configuration of the tuner */ + u8 tuner_address; + u8 antenna_switch; + + /* if the board uses another I2c Bridge (tda8290), its address */ + u8 i2c_gate; + + /* request firmware for device */ + int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name); +}; + +enum tda1004x_demod { + TDA1004X_DEMOD_TDA10045, + TDA1004X_DEMOD_TDA10046, +}; + +struct tda1004x_state { + struct i2c_adapter* i2c; + const struct tda1004x_config* config; + struct dvb_frontend frontend; + + /* private demod data */ + enum tda1004x_demod demod_type; +}; + +#if IS_REACHABLE(CONFIG_DVB_TDA1004X) +extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, + struct i2c_adapter* i2c); + +extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, + struct i2c_adapter* i2c); +#else +static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, + struct i2c_adapter* i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, + struct i2c_adapter* i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif // CONFIG_DVB_TDA1004X + +static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) { + int r = 0; + u8 buf[] = {reg, val}; + if (fe->ops.write) + r = fe->ops.write(fe, buf, 2); + return r; +} + +#endif // TDA1004X_H |