diff options
Diffstat (limited to 'drivers/media/dvb-frontends/ix2505v.h')
| -rw-r--r-- | drivers/media/dvb-frontends/ix2505v.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/ix2505v.h b/drivers/media/dvb-frontends/ix2505v.h new file mode 100644 index 000000000..671c0e095 --- /dev/null +++ b/drivers/media/dvb-frontends/ix2505v.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/** + * Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner + * + * Copyright (C) 2010 Malcolm Priestley + */ + +#ifndef DVB_IX2505V_H +#define DVB_IX2505V_H + +#include <linux/i2c.h> +#include <media/dvb_frontend.h> + +/** + * struct ix2505v_config - ix2505 attachment configuration + * + * @tuner_address: tuner address + * @tuner_gain: Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB + * @tuner_chargepump: Charge pump output +/- 0=120 1=260 2=555 3=1200(default) + * @min_delay_ms: delay after tune + * @tuner_write_only: disables reads + */ +struct ix2505v_config { + u8 tuner_address; + u8 tuner_gain; + u8 tuner_chargepump; + int min_delay_ms; + u8 tuner_write_only; + +}; + +#if IS_REACHABLE(CONFIG_DVB_IX2505V) +/** + * Attach a ix2505v tuner to the supplied frontend structure. + * + * @fe: Frontend to attach to. + * @config: pointer to &struct ix2505v_config + * @i2c: pointer to &struct i2c_adapter. + * + * return: FE pointer on success, NULL on failure. + */ +extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, + const struct ix2505v_config *config, struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe, + const struct ix2505v_config *config, struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif /* DVB_IX2505V_H */ |