cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tda1004x.h (3645B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2  /*
      3     Driver for Philips tda1004xh OFDM Frontend
      4
      5     (c) 2004 Andrew de Quincey
      6
      7
      8   */
      9
     10#ifndef TDA1004X_H
     11#define TDA1004X_H
     12
     13#include <linux/dvb/frontend.h>
     14#include <linux/firmware.h>
     15
     16enum tda10046_xtal {
     17	TDA10046_XTAL_4M,
     18	TDA10046_XTAL_16M,
     19};
     20
     21enum tda10046_agc {
     22	TDA10046_AGC_DEFAULT,		/* original configuration */
     23	TDA10046_AGC_IFO_AUTO_NEG,	/* IF AGC only, automatic, negative */
     24	TDA10046_AGC_IFO_AUTO_POS,	/* IF AGC only, automatic, positive */
     25	TDA10046_AGC_TDA827X,		/* IF AGC only, special setup for tda827x */
     26};
     27
     28/* Many (hybrid) boards use GPIO 1 and 3
     29	GPIO1	analog - dvb switch
     30	GPIO3	firmware eeprom address switch
     31*/
     32enum tda10046_gpio {
     33	TDA10046_GPTRI  = 0x00,		/* All GPIOs tristate */
     34	TDA10046_GP00   = 0x40,		/* GPIO3=0, GPIO1=0 */
     35	TDA10046_GP01   = 0x42,		/* GPIO3=0, GPIO1=1 */
     36	TDA10046_GP10   = 0x48,		/* GPIO3=1, GPIO1=0 */
     37	TDA10046_GP11   = 0x4a,		/* GPIO3=1, GPIO1=1 */
     38	TDA10046_GP00_I = 0x80,		/* GPIO3=0, GPIO1=0, invert in sleep mode*/
     39	TDA10046_GP01_I = 0x82,		/* GPIO3=0, GPIO1=1, invert in sleep mode */
     40	TDA10046_GP10_I = 0x88,		/* GPIO3=1, GPIO1=0, invert in sleep mode */
     41	TDA10046_GP11_I = 0x8a,		/* GPIO3=1, GPIO1=1, invert in sleep mode */
     42};
     43
     44enum tda10046_if {
     45	TDA10046_FREQ_3617,		/* original config, 36,166 MHZ */
     46	TDA10046_FREQ_3613,		/* 36,13 MHZ */
     47	TDA10046_FREQ_045,		/* low IF, 4.0, 4.5, or 5.0 MHZ */
     48	TDA10046_FREQ_052,		/* low IF, 5.1667 MHZ for tda9889 */
     49};
     50
     51enum tda10046_tsout {
     52	TDA10046_TS_PARALLEL  = 0x00,	/* parallel transport stream, default */
     53	TDA10046_TS_SERIAL    = 0x01,	/* serial transport stream */
     54};
     55
     56struct tda1004x_config
     57{
     58	/* the demodulator's i2c address */
     59	u8 demod_address;
     60
     61	/* does the "inversion" need inverted? */
     62	u8 invert;
     63
     64	/* Does the OCLK signal need inverted? */
     65	u8 invert_oclk;
     66
     67	/* parallel or serial transport stream */
     68	enum tda10046_tsout ts_mode;
     69
     70	/* Xtal frequency, 4 or 16MHz*/
     71	enum tda10046_xtal xtal_freq;
     72
     73	/* IF frequency */
     74	enum tda10046_if if_freq;
     75
     76	/* AGC configuration */
     77	enum tda10046_agc agc_config;
     78
     79	/* setting of GPIO1 and 3 */
     80	enum tda10046_gpio gpio_config;
     81
     82	/* slave address and configuration of the tuner */
     83	u8 tuner_address;
     84	u8 antenna_switch;
     85
     86	/* if the board uses another I2c Bridge (tda8290), its address */
     87	u8 i2c_gate;
     88
     89	/* request firmware for device */
     90	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
     91};
     92
     93enum tda1004x_demod {
     94	TDA1004X_DEMOD_TDA10045,
     95	TDA1004X_DEMOD_TDA10046,
     96};
     97
     98struct tda1004x_state {
     99	struct i2c_adapter* i2c;
    100	const struct tda1004x_config* config;
    101	struct dvb_frontend frontend;
    102
    103	/* private demod data */
    104	enum tda1004x_demod demod_type;
    105};
    106
    107#if IS_REACHABLE(CONFIG_DVB_TDA1004X)
    108extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
    109					    struct i2c_adapter* i2c);
    110
    111extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
    112					    struct i2c_adapter* i2c);
    113#else
    114static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
    115					    struct i2c_adapter* i2c)
    116{
    117	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    118	return NULL;
    119}
    120static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
    121					    struct i2c_adapter* i2c)
    122{
    123	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    124	return NULL;
    125}
    126#endif // CONFIG_DVB_TDA1004X
    127
    128static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
    129	int r = 0;
    130	u8 buf[] = {reg, val};
    131	if (fe->ops.write)
    132		r = fe->ops.write(fe, buf, 2);
    133	return r;
    134}
    135
    136#endif // TDA1004X_H