android_kernel_xiaomi_sm8350/drivers/media/video/tuner-xc2028.h
Michael Krufky 7972f9880c V4L/DVB (6893): tuner-xc2028: fix xc2028_attach function
xc2028_attach was returning an integer when disabled from the build, where it
should instead be returning NULL.  Declare xc2028_attach as type dvb_frontend *
instead of void *.

The prototype declaration must be marked as extern in the header.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25 19:04:14 -02:00

64 lines
1.6 KiB
C

/* tuner-xc2028
*
* Copyright (c) 2007 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License v2
*/
#ifndef __TUNER_XC2028_H__
#define __TUNER_XC2028_H__
#include "dvb_frontend.h"
#define XC2028_DEFAULT_FIRMWARE "xc3028-v27.fw"
/* Dmoduler IF (kHz) */
#define XC3028_FE_DEFAULT 0
#define XC3028_FE_LG60 6000
#define XC3028_FE_ATI638 6380
#define XC3028_FE_OREN538 5380
#define XC3028_FE_OREN36 3600
#define XC3028_FE_TOYOTA388 3880
#define XC3028_FE_TOYOTA794 7940
#define XC3028_FE_DIBCOM52 5200
#define XC3028_FE_ZARLINK456 4560
#define XC3028_FE_CHINA 5200
struct xc2028_ctrl {
char *fname;
int max_len;
unsigned int scode_table;
unsigned int mts :1;
unsigned int d2633 :1;
unsigned int input1:1;
unsigned int vhfbw7:1;
unsigned int uhfbw8:1;
unsigned int demod;
};
struct xc2028_config {
struct i2c_adapter *i2c_adap;
u8 i2c_addr;
void *video_dev;
struct xc2028_ctrl *ctrl;
int (*callback) (void *dev, int command, int arg);
};
/* xc2028 commands for callback */
#define XC2028_TUNER_RESET 0
#define XC2028_RESET_CLK 1
#if defined(CONFIG_TUNER_XC2028) || (defined(CONFIG_TUNER_XC2028_MODULE) && defined(MODULE))
extern struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
struct xc2028_config *cfg);
#else
static inline struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
struct xc2028_config *cfg)
{
printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
__FUNCTION__);
return NULL;
}
#endif
#endif /* __TUNER_XC2028_H__ */