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/*
* Montage M88DS3103 demodulator driver
*
* Copyright (C) 2013 Antti Palosaari <crope@iki.fi>
*
* 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 M88DS3103_H
#define M88DS3103_H
#include <linux/dvb/frontend.h>
struct m88ds3103_config {
/*
* I2C address
* Default: none, must set
* 0x68, ...
*/
u8 i2c_addr;
/*
* clock
* Default: none, must set
* 27000000
*/
u32 clock;
/*
* max bytes I2C provider is asked to write at once
* Default: none, must set
* 33, 65, ...
*/
u16 i2c_wr_max;
/*
* TS output mode
* Default: M88DS3103_TS_SERIAL
*/
#define M88DS3103_TS_SERIAL 0 /* TS output pin D0, normal */
#define M88DS3103_TS_SERIAL_D7 1 /* TS output pin D7 */
#define M88DS3103_TS_PARALLEL 2 /* TS Parallel mode */
#define M88DS3103_TS_CI 3 /* TS CI Mode */
u8 ts_mode;
/*
* TS clk in KHz
* Default: 0.
*/
u32 ts_clk;
/*
* TS clk polarity.
* Default: 0. 1-active at falling edge; 0-active at rising edge.
*/
u8 ts_clk_pol:1;
/*
* spectrum inversion
* Default: 0
*/
u8 spec_inv:1;
/*
* AGC polarity
* Default: 0
*/
u8 agc_inv:1;
/*
* clock output
* Default: M88DS3103_CLOCK_OUT_DISABLED
*/
#define M88DS3103_CLOCK_OUT_DISABLED 0
#define M88DS3103_CLOCK_OUT_ENABLED 1
#define M88DS3103_CLOCK_OUT_ENABLED_DIV2 2
u8 clock_out;
/*
* DiSEqC envelope mode
* Default: 0
*/
u8 envelope_mode:1;
/*
* AGC configuration
* Default: none, must set
*/
u8 agc;
/*
* LNB H/V pin polarity
* Default: 0.
* 1: pin high set to VOLTAGE_13, pin low to set VOLTAGE_18.
* 0: pin high set to VOLTAGE_18, pin low to set VOLTAGE_13.
*/
u8 lnb_hv_pol:1;
/*
* LNB enable pin polarity
* Default: 0.
* 1: pin high to enable, pin low to disable.
* 0: pin high to disable, pin low to enable.
*/
u8 lnb_en_pol:1;
};
/*
* Driver implements own I2C-adapter for tuner I2C access. That's since chip
* has I2C-gate control which closes gate automatically after I2C transfer.
* Using own I2C adapter we can workaround that.
*/
#if defined(CONFIG_DVB_M88DS3103) || \
(defined(CONFIG_DVB_M88DS3103_MODULE) && defined(MODULE))
extern struct dvb_frontend *m88ds3103_attach(
const struct m88ds3103_config *config,
struct i2c_adapter *i2c,
struct i2c_adapter **tuner_i2c);
#else
static inline struct dvb_frontend *m88ds3103_attach(
const struct m88ds3103_config *config,
struct i2c_adapter *i2c,
struct i2c_adapter **tuner_i2c)
{
pr_warn("%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif
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