1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Driver for the MaxLinear MxL5xx family of tuners/demods
4  *
5  * Copyright (C) 2014-2015 Ralph Metzler <rjkm@metzlerbros.de>
6  *                         Marcus Metzler <mocm@metzlerbros.de>
7  *                         developed for Digital Devices GmbH
8  *
9  * based on code:
10  * Copyright (c) 2011-2013 MaxLinear, Inc. All rights reserved
11  * which was released under GPL V2
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * version 2, as published by the Free Software Foundation.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  */
22 
23 #ifndef _MXL5XX_H_
24 #define _MXL5XX_H_
25 
26 #include <linux/types.h>
27 #include <linux/i2c.h>
28 
29 #include <media/dvb_frontend.h>
30 
31 struct mxl5xx_cfg {
32 	u8   adr;
33 	u8   type;
34 	u32  cap;
35 	u32  clk;
36 	u32  ts_clk;
37 
38 	u8  *fw;
39 	u32  fw_len;
40 
41 	int (*fw_read)(void *priv, u8 *buf, u32 len);
42 	void *fw_priv;
43 };
44 
45 #if IS_REACHABLE(CONFIG_DVB_MXL5XX)
46 
47 extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
48 	struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
49 	int (**fn_set_input)(struct dvb_frontend *, int));
50 
51 #else
52 
53 static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
54 	struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
55 	int (**fn_set_input)(struct dvb_frontend *, int))
56 {
57 	pr_warn("%s: driver disabled by Kconfig\n", __func__);
58 	return NULL;
59 }
60 
61 #endif /* CONFIG_DVB_MXL5XX */
62 
63 #endif /* _MXL5XX_H_ */
64