1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator 4*4882a593Smuzhiyun * ATBM8830, ATBM8831 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef __ATBM8830_H__ 10*4882a593Smuzhiyun #define __ATBM8830_H__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/dvb/frontend.h> 13*4882a593Smuzhiyun #include <linux/i2c.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #define ATBM8830_PROD_8830 0 16*4882a593Smuzhiyun #define ATBM8830_PROD_8831 1 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun struct atbm8830_config { 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* product type */ 21*4882a593Smuzhiyun u8 prod; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /* the demodulator's i2c address */ 24*4882a593Smuzhiyun u8 demod_address; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* parallel or serial transport stream */ 27*4882a593Smuzhiyun u8 serial_ts; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* transport stream clock output only when receiving valid stream */ 30*4882a593Smuzhiyun u8 ts_clk_gated; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun /* Decoder sample TS data at rising edge of clock */ 33*4882a593Smuzhiyun u8 ts_sampling_edge; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun /* Oscillator clock frequency */ 36*4882a593Smuzhiyun u32 osc_clk_freq; /* in kHz */ 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* IF frequency */ 39*4882a593Smuzhiyun u32 if_freq; /* in kHz */ 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* Swap I/Q for zero IF */ 42*4882a593Smuzhiyun u8 zif_swap_iq; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun /* Tuner AGC settings */ 45*4882a593Smuzhiyun u8 agc_min; 46*4882a593Smuzhiyun u8 agc_max; 47*4882a593Smuzhiyun u8 agc_hold_loop; 48*4882a593Smuzhiyun }; 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun #if IS_REACHABLE(CONFIG_DVB_ATBM8830) 51*4882a593Smuzhiyun extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config, 52*4882a593Smuzhiyun struct i2c_adapter *i2c); 53*4882a593Smuzhiyun #else 54*4882a593Smuzhiyun static inline atbm8830_attach(const struct atbm8830_config * config,struct i2c_adapter * i2c)55*4882a593Smuzhiyunstruct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config, 56*4882a593Smuzhiyun struct i2c_adapter *i2c) { 57*4882a593Smuzhiyun printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 58*4882a593Smuzhiyun return NULL; 59*4882a593Smuzhiyun } 60*4882a593Smuzhiyun #endif /* CONFIG_DVB_ATBM8830 */ 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #endif /* __ATBM8830_H__ */ 63