63 lines · c
1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Support for AltoBeam GB20600 (a.k.a DMB-TH) demodulator4 * ATBM8830, ATBM88315 *6 * Copyright (C) 2009 David T.L. Wong <davidtlwong@gmail.com>7 */8 9#ifndef __ATBM8830_H__10#define __ATBM8830_H__11 12#include <linux/dvb/frontend.h>13#include <linux/i2c.h>14 15#define ATBM8830_PROD_8830 016#define ATBM8830_PROD_8831 117 18struct atbm8830_config {19 20 /* product type */21 u8 prod;22 23 /* the demodulator's i2c address */24 u8 demod_address;25 26 /* parallel or serial transport stream */27 u8 serial_ts;28 29 /* transport stream clock output only when receiving valid stream */30 u8 ts_clk_gated;31 32 /* Decoder sample TS data at rising edge of clock */33 u8 ts_sampling_edge;34 35 /* Oscillator clock frequency */36 u32 osc_clk_freq; /* in kHz */37 38 /* IF frequency */39 u32 if_freq; /* in kHz */40 41 /* Swap I/Q for zero IF */42 u8 zif_swap_iq;43 44 /* Tuner AGC settings */45 u8 agc_min;46 u8 agc_max;47 u8 agc_hold_loop;48};49 50#if IS_REACHABLE(CONFIG_DVB_ATBM8830)51extern struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,52 struct i2c_adapter *i2c);53#else54static inline55struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,56 struct i2c_adapter *i2c) {57 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);58 return NULL;59}60#endif /* CONFIG_DVB_ATBM8830 */61 62#endif /* __ATBM8830_H__ */63