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