c5dec9fb24
When a front-end is disabled, card drivers that use it are compiled with a stub version of the front-end's attach function. This way they have no references to the front-end's code and don't need it to be loaded. If a card driver is compiled into the kernel, and a front-end is a module, then that front-end is effectively disabled wrt the card driver. In this case, the card driver should get the stub version. This was not happening. The stub vs real attach function selection is changed so that when the front-end is a module the real attach function is only used if the card driver is a module as well. This means a module front-end will be supported by card drivers that are modules and not supported by card drivers compiled into the kernel. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Driver for DiBcom DiB3000MC/P-demodulator.
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*
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* Copyright (C) 2004-6 DiBcom (http://www.dibcom.fr/)
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* Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher\@desy.de)
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*
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* This code is partially based on the previous dib3000mc.c .
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*/
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#ifndef DIB3000MC_H
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#define DIB3000MC_H
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#include "dibx000_common.h"
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struct dib3000mc_config {
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struct dibx000_agc_config *agc;
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u8 phase_noise_mode;
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u8 impulse_noise_mode;
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u8 pwm3_inversion;
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u8 use_pwm3;
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u16 pwm3_value;
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u16 max_time;
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u16 ln_adc_level;
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u8 agc_command1 :1;
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u8 agc_command2 :1;
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u8 mobile_mode;
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u8 output_mpeg2_in_188_bytes;
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};
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#define DEFAULT_DIB3000MC_I2C_ADDRESS 16
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#define DEFAULT_DIB3000P_I2C_ADDRESS 24
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#if defined(CONFIG_DVB_DIB3000MC) || (defined(CONFIG_DVB_DIB3000MC_MODULE) && defined(MODULE))
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extern struct dvb_frontend * dib3000mc_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib3000mc_config *cfg);
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#else
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static inline struct dvb_frontend * dib3000mc_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib3000mc_config *cfg)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
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return NULL;
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}
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#endif // CONFIG_DVB_DIB3000MC
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extern int dib3000mc_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib3000mc_config cfg[]);
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extern struct i2c_adapter * dib3000mc_get_tuner_i2c_master(struct dvb_frontend *demod, int gating);
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extern int dib3000mc_pid_control(struct dvb_frontend *fe, int index, int pid,int onoff);
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extern int dib3000mc_pid_parse(struct dvb_frontend *fe, int onoff);
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extern void dib3000mc_set_config(struct dvb_frontend *, struct dib3000mc_config *);
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#endif
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