media/dvb-frontends/mxl5xx.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Driver for the MaxLinear MxL5xx family of tuners/demods
0004  *
0005  * Copyright (C) 2014-2015 Ralph Metzler <rjkm@metzlerbros.de>
0006  *                         Marcus Metzler <mocm@metzlerbros.de>
0007  *                         developed for Digital Devices GmbH
0008  *
0009  * based on code:
0010  * Copyright (c) 2011-2013 MaxLinear, Inc. All rights reserved
0011  * which was released under GPL V2
0012  */
0013
0014 #ifndef _MXL5XX_H_
0015 #define _MXL5XX_H_
0016
0017 #include <linux/types.h>
0018 #include <linux/i2c.h>
0019
0020 #include <media/dvb_frontend.h>
0021
0022 struct mxl5xx_cfg {
0023     u8   adr;
0024     u8   type;
0025     u32  cap;
0026     u32  clk;
0027     u32  ts_clk;
0028
0029     u8  *fw;
0030     u32  fw_len;
0031
0032     int (*fw_read)(void *priv, u8 *buf, u32 len);
0033     void *fw_priv;
0034 };
0035
0036 #if IS_REACHABLE(CONFIG_DVB_MXL5XX)
0037
0038 extern struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
0039     struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
0040     int (**fn_set_input)(struct dvb_frontend *, int));
0041
0042 #else
0043
0044 static inline struct dvb_frontend *mxl5xx_attach(struct i2c_adapter *i2c,
0045     struct mxl5xx_cfg *cfg, u32 demod, u32 tuner,
0046     int (**fn_set_input)(struct dvb_frontend *, int))
0047 {
0048     pr_warn("%s: driver disabled by Kconfig\n", __func__);
0049     return NULL;
0050 }
0051
0052 #endif /* CONFIG_DVB_MXL5XX */
0053
0054 #endif /* _MXL5XX_H_ */