| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Driver for Zarlink DVB-T MT352 demodulator |
| * |
| * Written by Holger Waechtler <holger@qanu.de> |
| * and Daniel Mack <daniel@qanu.de> |
| * |
| * AVerMedia AVerTV DVB-T 771 support by |
| * Wolfram Joost <dbox2@frokaschwei.de> |
| * |
| * Support for Samsung TDTC9251DH01C(M) tuner |
| * Copyright (C) 2004 Antonio Mancuso <antonio.mancuso@digitaltelevision.it> |
| * Amauri Celani <acelani@essegi.net> |
| * |
| * DVICO FusionHDTV DVB-T1 and DVICO FusionHDTV DVB-T Lite support by |
| * Christopher Pascoe <c.pascoe@itee.uq.edu.au> |
| */ |
| |
| #ifndef MT352_H |
| #define MT352_H |
| |
| #include <linux/dvb/frontend.h> |
| |
| struct mt352_config |
| { |
| /* the demodulator's i2c address */ |
| u8 demod_address; |
| |
| /* frequencies in kHz */ |
| int adc_clock; // default: 20480 |
| int if2; // default: 36166 |
| |
| /* set if no pll is connected to the secondary i2c bus */ |
| int no_tuner; |
| |
| /* Initialise the demodulator and PLL. Cannot be NULL */ |
| int (*demod_init)(struct dvb_frontend* fe); |
| }; |
| |
| #if IS_REACHABLE(CONFIG_DVB_MT352) |
| extern struct dvb_frontend* mt352_attach(const struct mt352_config* config, |
| struct i2c_adapter* i2c); |
| #else |
| static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config, |
| struct i2c_adapter* i2c) |
| { |
| printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| return NULL; |
| } |
| #endif // CONFIG_DVB_MT352 |
| |
| static inline int mt352_write(struct dvb_frontend *fe, const u8 buf[], int len) { |
| int r = 0; |
| if (fe->ops.write) |
| r = fe->ops.write(fe, buf, len); |
| return r; |
| } |
| |
| #endif // MT352_H |
