diff options
Diffstat (limited to 'drivers/media/dvb-frontends/lgdt330x.h')
| -rw-r--r-- | drivers/media/dvb-frontends/lgdt330x.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/lgdt330x.h b/drivers/media/dvb-frontends/lgdt330x.h new file mode 100644 index 000000000..99834aa60 --- /dev/null +++ b/drivers/media/dvb-frontends/lgdt330x.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Support for LGDT3302 and LGDT3303 - VSB/QAM + * + * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> + */ + +#ifndef LGDT330X_H +#define LGDT330X_H + +#include <linux/dvb/frontend.h> + +typedef enum lg_chip_t { + UNDEFINED, + LGDT3302, + LGDT3303 +}lg_chip_type; + +/** + * struct lgdt330x_config - contains lgdt330x configuration + * + * @demod_chip: LG demodulator chip LGDT3302 or LGDT3303 + * @serial_mpeg: MPEG hardware interface - 0:parallel 1:serial + * @pll_rf_set: Callback function to set PLL interface + * @set_ts_params: Callback function to set device param for start_dma + * @clock_polarity_flip: + * Flip the polarity of the mpeg data transfer clock using alternate + * init data. + * This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled + * @get_dvb_frontend: + * returns the frontend associated with this I2C client. + * Filled by the driver. + */ +struct lgdt330x_config +{ + lg_chip_type demod_chip; + int serial_mpeg; + int (*pll_rf_set) (struct dvb_frontend* fe, int index); + int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); + int clock_polarity_flip; + + struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); +}; + +#if IS_REACHABLE(CONFIG_DVB_LGDT330X) +struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, + u8 demod_address, + struct i2c_adapter *i2c); +#else +static inline +struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, + u8 demod_address, + struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif // CONFIG_DVB_LGDT330X + +#endif /* LGDT330X_H */ |