diff options
Diffstat (limited to 'drivers/media/dvb-frontends/cx24120.h')
| -rw-r--r-- | drivers/media/dvb-frontends/cx24120.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/cx24120.h b/drivers/media/dvb-frontends/cx24120.h new file mode 100644 index 000000000000..f0970423e16f --- /dev/null +++ b/drivers/media/dvb-frontends/cx24120.h @@ -0,0 +1,58 @@ +/* + * Conexant CX24120/CX24118 - DVB-S/S2 demod/tuner driver + * + * Copyright (C) 2008 Patrick Boettcher <pb@linuxtv.org> + * Copyright (C) 2009 Sergey Tyurin <forum.free-x.de> + * Updated 2012 by Jannis Achstetter <jannis_achstetter@web.de> + * Copyright (C) 2015 Jemma Denson <jdenson@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef CX24120_H +#define CX24120_H + +#include <linux/kconfig.h> +#include <linux/dvb/frontend.h> +#include <linux/firmware.h> + +struct cx24120_initial_mpeg_config { + u8 x1; + u8 x2; + u8 x3; +}; + +struct cx24120_config { + u8 i2c_addr; + u32 xtal_khz; + struct cx24120_initial_mpeg_config initial_mpeg_config; + + int (*request_firmware)(struct dvb_frontend *fe, + const struct firmware **fw, char *name); + + /* max bytes I2C provider can write at once */ + u16 i2c_wr_max; +}; + +#if IS_REACHABLE(CONFIG_DVB_CX24120) +struct dvb_frontend *cx24120_attach(const struct cx24120_config *config, + struct i2c_adapter *i2c); +#else +static inline +struct dvb_frontend *cx24120_attach(const struct cx24120_config *config, + struct i2c_adapter *i2c) +{ + pr_warn("%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif /* CX24120_H */ |