linux/drivers/media/dvb-frontends/dib7000p.h
Mauro Carvalho Chehab 8abe4a0a3f [media] dib7000: export just one symbol
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>
2014-06-17 12:04:49 -03:00

80 lines
2.5 KiB
C

#ifndef DIB7000P_H
#define DIB7000P_H
#include <linux/kconfig.h>
#include "dibx000_common.h"
struct dib7000p_config {
u8 output_mpeg2_in_188_bytes;
u8 hostbus_diversity;
u8 tuner_is_baseband;
int (*update_lna) (struct dvb_frontend *, u16 agc_global);
u8 agc_config_count;
struct dibx000_agc_config *agc;
struct dibx000_bandwidth_config *bw;
#define DIB7000P_GPIO_DEFAULT_DIRECTIONS 0xffff
u16 gpio_dir;
#define DIB7000P_GPIO_DEFAULT_VALUES 0x0000
u16 gpio_val;
#define DIB7000P_GPIO_PWM_POS0(v) ((v & 0xf) << 12)
#define DIB7000P_GPIO_PWM_POS1(v) ((v & 0xf) << 8 )
#define DIB7000P_GPIO_PWM_POS2(v) ((v & 0xf) << 4 )
#define DIB7000P_GPIO_PWM_POS3(v) (v & 0xf)
#define DIB7000P_GPIO_DEFAULT_PWM_POS 0xffff
u16 gpio_pwm_pos;
u16 pwm_freq_div;
u8 quartz_direct;
u8 spur_protect;
int (*agc_control) (struct dvb_frontend *, u8 before);
u8 output_mode;
u8 disable_sample_and_hold:1;
u8 enable_current_mirror:1;
u16 diversity_delay;
u8 default_i2c_addr;
u8 enMpegOutput:1;
};
#define DEFAULT_DIB7000P_I2C_ADDRESS 18
struct dib7000p_ops {
int (*set_wbd_ref)(struct dvb_frontend *demod, u16 value);
int (*get_agc_values)(struct dvb_frontend *fe,
u16 *agc_global, u16 *agc1, u16 *agc2, u16 *wbd);
int (*set_agc1_min)(struct dvb_frontend *fe, u16 v);
int (*update_pll)(struct dvb_frontend *fe, struct dibx000_bandwidth_config *bw);
int (*set_gpio)(struct dvb_frontend *demod, u8 num, u8 dir, u8 val);
u32 (*ctrl_timf)(struct dvb_frontend *fe, u8 op, u32 timf);
int (*dib7000pc_detection)(struct i2c_adapter *i2c_adap);
struct i2c_adapter *(*get_i2c_master)(struct dvb_frontend *demod, enum dibx000_i2c_interface intf, int gating);
int (*pid_filter_ctrl)(struct dvb_frontend *fe, u8 onoff);
int (*pid_filter)(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff);
int (*i2c_enumeration)(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[]);
struct i2c_adapter *(*get_i2c_tuner)(struct dvb_frontend *fe);
int (*tuner_sleep)(struct dvb_frontend *fe, int onoff);
int (*get_adc_power)(struct dvb_frontend *fe);
int (*slave_reset)(struct dvb_frontend *fe);
struct dvb_frontend *(*init)(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000p_config *cfg);
};
#if IS_ENABLED(CONFIG_DVB_DIB7000P)
void *dib7000p_attach(struct dib7000p_ops *ops);
#else
static inline void *dib7000p_attach(struct dib7000p_ops *ops)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif