![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
Exporting multiple symbols don't work as it causes compilation breakages, due to the way dvb_attach() works. This were reported several times, like: drivers/built-in.o: In function `cxusb_dualdig4_rev2_tuner_attach': >> cxusb.c:(.text+0x27d4b5): undefined reference to `dib7000p_get_i2c_master' drivers/built-in.o: In function `dib7070_set_param_override': cxusb.c:(.text+0x27d5a5): undefined reference to `dib0070_wbd_offset' >> cxusb.c:(.text+0x27d5be): undefined reference to `dib7000p_set_wbd_ref' drivers/built-in.o: In function `dib7070_tuner_reset': >> cxusb.c:(.text+0x27d5f9): undefined reference to `dib7000p_set_gpio' drivers/built-in.o: In function `cxusb_dualdig4_rev2_frontend_attach': >> cxusb.c:(.text+0x27df5c): undefined reference to `dib7000p_i2c_enumeration' In this specific report: CONFIG_DVB_USB_CXUSB=y CONFIG_DVB_DIB7000P=m But the same type of bug can happen if: CONFIG_DVB_DIB7000P=m and one of the bridge drivers is compiled builtin (cxusb, cx23885-dvb and/or dib0700). As a bonus, dib7000p won't be loaded anymore if the device uses a different frontend, reducing the memory footprint. Tested with Hauppauge Nova-TD (2 frontends). Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
#ifndef DIB7000P_H
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#define DIB7000P_H
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#include <linux/kconfig.h>
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#include "dibx000_common.h"
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struct dib7000p_config {
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u8 output_mpeg2_in_188_bytes;
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u8 hostbus_diversity;
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u8 tuner_is_baseband;
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int (*update_lna) (struct dvb_frontend *, u16 agc_global);
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u8 agc_config_count;
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struct dibx000_agc_config *agc;
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struct dibx000_bandwidth_config *bw;
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#define DIB7000P_GPIO_DEFAULT_DIRECTIONS 0xffff
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u16 gpio_dir;
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#define DIB7000P_GPIO_DEFAULT_VALUES 0x0000
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u16 gpio_val;
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#define DIB7000P_GPIO_PWM_POS0(v) ((v & 0xf) << 12)
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#define DIB7000P_GPIO_PWM_POS1(v) ((v & 0xf) << 8 )
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#define DIB7000P_GPIO_PWM_POS2(v) ((v & 0xf) << 4 )
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#define DIB7000P_GPIO_PWM_POS3(v) (v & 0xf)
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#define DIB7000P_GPIO_DEFAULT_PWM_POS 0xffff
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u16 gpio_pwm_pos;
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u16 pwm_freq_div;
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u8 quartz_direct;
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u8 spur_protect;
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int (*agc_control) (struct dvb_frontend *, u8 before);
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u8 output_mode;
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u8 disable_sample_and_hold:1;
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u8 enable_current_mirror:1;
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u16 diversity_delay;
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u8 default_i2c_addr;
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u8 enMpegOutput:1;
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};
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#define DEFAULT_DIB7000P_I2C_ADDRESS 18
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struct dib7000p_ops {
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int (*set_wbd_ref)(struct dvb_frontend *demod, u16 value);
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int (*get_agc_values)(struct dvb_frontend *fe,
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u16 *agc_global, u16 *agc1, u16 *agc2, u16 *wbd);
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int (*set_agc1_min)(struct dvb_frontend *fe, u16 v);
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int (*update_pll)(struct dvb_frontend *fe, struct dibx000_bandwidth_config *bw);
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int (*set_gpio)(struct dvb_frontend *demod, u8 num, u8 dir, u8 val);
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u32 (*ctrl_timf)(struct dvb_frontend *fe, u8 op, u32 timf);
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int (*dib7000pc_detection)(struct i2c_adapter *i2c_adap);
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struct i2c_adapter *(*get_i2c_master)(struct dvb_frontend *demod, enum dibx000_i2c_interface intf, int gating);
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int (*pid_filter_ctrl)(struct dvb_frontend *fe, u8 onoff);
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int (*pid_filter)(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
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int (*i2c_enumeration)(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[]);
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struct i2c_adapter *(*get_i2c_tuner)(struct dvb_frontend *fe);
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int (*tuner_sleep)(struct dvb_frontend *fe, int onoff);
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int (*get_adc_power)(struct dvb_frontend *fe);
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int (*slave_reset)(struct dvb_frontend *fe);
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struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg);
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};
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#if IS_ENABLED(CONFIG_DVB_DIB7000P)
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void *dib7000p_attach(struct dib7000p_ops *ops);
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#else
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static inline void *dib7000p_attach(struct dib7000p_ops *ops)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif
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