diff options
Diffstat (limited to 'drivers/media/dvb-frontends/lgs8gxx.h')
| -rw-r--r-- | drivers/media/dvb-frontends/lgs8gxx.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/lgs8gxx.h b/drivers/media/dvb-frontends/lgs8gxx.h new file mode 100644 index 000000000..5b2f13a8b --- /dev/null +++ b/drivers/media/dvb-frontends/lgs8gxx.h @@ -0,0 +1,80 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator + * LGS8913, LGS8GL5, LGS8G75 + * experimental support LGS8G42, LGS8G52 + * + * Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com> + * Copyright (C) 2008 Sirius International (Hong Kong) Limited + * Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5) + */ + +#ifndef __LGS8GXX_H__ +#define __LGS8GXX_H__ + +#include <linux/dvb/frontend.h> +#include <linux/i2c.h> + +#define LGS8GXX_PROD_LGS8913 0 +#define LGS8GXX_PROD_LGS8GL5 1 +#define LGS8GXX_PROD_LGS8G42 3 +#define LGS8GXX_PROD_LGS8G52 4 +#define LGS8GXX_PROD_LGS8G54 5 +#define LGS8GXX_PROD_LGS8G75 6 + +struct lgs8gxx_config { + + /* product type */ + u8 prod; + + /* the demodulator's i2c address */ + u8 demod_address; + + /* parallel or serial transport stream */ + u8 serial_ts; + + /* transport stream polarity*/ + u8 ts_clk_pol; + + /* transport stream clock gated by ts_valid */ + u8 ts_clk_gated; + + /* A/D Clock frequency */ + u32 if_clk_freq; /* in kHz */ + + /* IF frequency */ + u32 if_freq; /* in kHz */ + + /*Use External ADC*/ + u8 ext_adc; + + /*External ADC output two's complement*/ + u8 adc_signed; + + /*Sample IF data at falling edge of IF_CLK*/ + u8 if_neg_edge; + + /*IF use Negative center frequency*/ + u8 if_neg_center; + + /*8G75 internal ADC input range selection*/ + /*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/ + u8 adc_vpp; + + /* slave address and configuration of the tuner */ + u8 tuner_address; +}; + +#if IS_REACHABLE(CONFIG_DVB_LGS8GXX) +extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, + struct i2c_adapter *i2c); +#else +static inline +struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config, + struct i2c_adapter *i2c) { + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_LGS8GXX */ + +#endif /* __LGS8GXX_H__ */ |