From ae8dc8ee2b84d31306766d87cc5b2bb42e216f57 Mon Sep 17 00:00:00 2001 From: Malcolm Priestley Date: Wed, 7 Mar 2012 18:11:03 -0300 Subject: [media] m88rs2000 1.12 v2 DVB-S frontend and tuner module Support for m88rs2000 chip used in lmedm04 driver. Note there are still lock problems. Slow channel change due to the large block of registers sent in set_frontend. Version 2 differences. Front end is completely shut down when in sleep mode. This allow user to regain control of device. Kaffeine scan problem solved by removing register calls from get_frontend. Kaffeine seems to call get_frontend when updating signal data. This can happen in the middle of a tune stalling the driver. Change calculations to those in the DS3000 driver. Signed-off-by: Malcolm Priestley Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/m88rs2000.h | 66 +++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 drivers/media/dvb/frontends/m88rs2000.h (limited to 'drivers/media/dvb/frontends/m88rs2000.h') diff --git a/drivers/media/dvb/frontends/m88rs2000.h b/drivers/media/dvb/frontends/m88rs2000.h new file mode 100644 index 00000000000..59acdb69687 --- /dev/null +++ b/drivers/media/dvb/frontends/m88rs2000.h @@ -0,0 +1,66 @@ +/* + Driver for M88RS2000 demodulator + + 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef M88RS2000_H +#define M88RS2000_H + +#include +#include "dvb_frontend.h" + +struct m88rs2000_config { + /* Demodulator i2c address */ + u8 demod_addr; + /* Tuner address */ + u8 tuner_addr; + + u8 *inittab; + + /* minimum delay before retuning */ + int min_delay_ms; + + int (*set_ts_params)(struct dvb_frontend *, int); +}; + +enum { + CALL_IS_SET_FRONTEND = 0x0, + CALL_IS_READ, +}; + +#if defined(CONFIG_DVB_M88RS2000) || (defined(CONFIG_DVB_M88RS2000_MODULE) && \ + defined(MODULE)) +extern struct dvb_frontend *m88rs2000_attach( + const struct m88rs2000_config *config, struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *m88rs2000_attach( + const struct m88rs2000_config *config, struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif /* CONFIG_DVB_M88RS2000 */ + +#define FE_CRYSTAL_KHZ 27000 +#define FREQ_OFFSET_LOW_SYM_RATE 3000 + +enum { + DEMOD_WRITE = 0x1, + TUNER_WRITE, + WRITE_DELAY = 0x10, +}; +#endif /* M88RS2000_H */ -- cgit v1.2.3-70-g09d2