xref: /linux/drivers/media/dvb-frontends/cx24116.h (revision c0c914eca7f251c70facc37dfebeaf176601918d)
1 /*
2     Conexant cx24116/cx24118 - DVBS/S2 Satellite demod/tuner driver
3 
4     Copyright (C) 2006 Steven Toth <stoth@linuxtv.com>
5 
6     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by
8     the Free Software Foundation; either version 2 of the License, or
9     (at your option) any later version.
10 
11     This program is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14     GNU General Public License for more details.
15 
16     You should have received a copy of the GNU General Public License
17     along with this program; if not, write to the Free Software
18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 
21 #ifndef CX24116_H
22 #define CX24116_H
23 
24 #include <linux/kconfig.h>
25 #include <linux/dvb/frontend.h>
26 
27 struct cx24116_config {
28 	/* the demodulator's i2c address */
29 	u8 demod_address;
30 
31 	/* Need to set device param for start_dma */
32 	int (*set_ts_params)(struct dvb_frontend *fe, int is_punctured);
33 
34 	/* Need to reset device during firmware loading */
35 	int (*reset_device)(struct dvb_frontend *fe);
36 
37 	/* Need to set MPEG parameters */
38 	u8 mpg_clk_pos_pol:0x02;
39 
40 	/* max bytes I2C provider can write at once */
41 	u16 i2c_wr_max;
42 };
43 
44 #if IS_REACHABLE(CONFIG_DVB_CX24116)
45 extern struct dvb_frontend *cx24116_attach(
46 	const struct cx24116_config *config,
47 	struct i2c_adapter *i2c);
48 #else
49 static inline struct dvb_frontend *cx24116_attach(
50 	const struct cx24116_config *config,
51 	struct i2c_adapter *i2c)
52 {
53 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
54 	return NULL;
55 }
56 #endif
57 
58 #endif /* CX24116_H */
59