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/*
* Montage Technology M88DS3103/M88RS6000 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>
/*
* I2C address
* 0x68,
*/
/**
* enum m88ds3103_ts_mode - TS connection mode
* @M88DS3103_TS_SERIAL: TS output pin D0, normal
* @M88DS3103_TS_SERIAL_D7: TS output pin D7
* @M88DS3103_TS_PARALLEL: TS Parallel mode
* @M88DS3103_TS_CI: TS CI Mode
*/
enum m88ds3103_ts_mode {
M88DS3103_TS_SERIAL,
M88DS3103_TS_SERIAL_D7,
M88DS3103_TS_PARALLEL,
M88DS3103_TS_CI
};
/**
* enum m88ds3103_clock_out
* @M88DS3103_CLOCK_OUT_DISABLED: Clock output is disabled
* @M88DS3103_CLOCK_OUT_ENABLED: Clock output is enabled with crystal
* clock.
* @M88DS3103_CLOCK_OUT_ENABLED_DIV2: Clock output is enabled with half
* crystal clock.
*/
enum m88ds3103_clock_out {
M88DS3103_CLOCK_OUT_DISABLED,
M88DS3103_CLOCK_OUT_ENABLED,
M88DS3103_CLOCK_OUT_ENABLED_DIV2
};
/**
* struct m88ds3103_platform_data - Platform data for the m88ds3103 driver
* @clk: Clock frequency.
* @i2c_wr_max: Max bytes I2C adapter can write at once.
* @ts_mode: TS mode.
* @ts_clk: TS clock (KHz).
* @ts_clk_pol: TS clk polarity. 1-active at falling edge; 0-active at rising
* edge.
* @spec_inv: Input spectrum inversion.
* @agc: AGC configuration.
* @agc_inv: AGC polarity.
* @clk_out: Clock output.
* @envelope_mode: DiSEqC envelope mode.
* @lnb_hv_pol: LNB H/V pin polarity. 0: pin high set to VOLTAGE_18, pin low to
* set VOLTAGE_13. 1: pin high set to VOLTAGE_13, pin low to set VOLTAGE_18.
* @lnb_en_pol: LNB enable pin polarity. 0: pin high to disable, pin low to
* enable. 1: pin high to enable, pin low to disable.
* @get_dvb_frontend: Get DVB frontend.
* @get_i2c_adapter: Get I2C adapter.
*/
struct m88ds3103_platform_data {
u32 clk;
u16 i2c_wr_max;
enum m88ds3103_ts_mode ts_mode;
u32 ts_clk;
enum m88ds3103_clock_out clk_out;
u8 ts_clk_pol:1;
u8 spec_inv:1;
u8 agc;
u8 agc_inv:1;
u8 envelope_mode:1;
u8 lnb_hv_pol:1;
u8 lnb_en_pol:1;
struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *);
/* private: For legacy media attach wrapper. Do not set value. */
u8 attach_in_use:1;
};
/**
* struct m88ds3103_config - m88ds3102 configuration
*
* @i2c_addr: I2C address. Default: none, must set. Example: 0x68, ...
* @clock: Device's clock. Default: none, must set. Example: 27000000
* @i2c_wr_max: Max bytes I2C provider is asked to write at once.
* Default: none, must set. Example: 33, 65, ...
* @ts_mode: TS output mode, as defined by &enum m88ds3103_ts_mode.
* Default: M88DS3103_TS_SERIAL.
* @ts_clk: TS clk in KHz. Default: 0.
* @ts_clk_pol: TS clk polarity.Default: 0.
* 1-active at falling edge; 0-active at rising edge.
* @spec_inv: Spectrum inversion. Default: 0.
* @agc_inv: AGC polarity. Default: 0.
* @clock_out: Clock output, as defined by &enum m88ds3103_clock_out.
* Default: M88DS3103_CLOCK_OUT_DISABLED.
* @envelope_mode: DiSEqC envelope mode. Default: 0.
* @agc: AGC configuration. Default: none, must set.
* @lnb_hv_pol: LNB H/V pin polarity. Default: 0. Values:
* 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.
* @lnb_en_pol: LNB enable pin polarity. Default: 0. Values:
* 1: pin high to enable, pin low to disable;
* 0: pin high to disable, pin low to enable.
*/
struct m88ds3103_config {
u8 i2c_addr;
u32 clock;
u16 i2c_wr_max;
u8 ts_mode;
u32 ts_clk;
u8 ts_clk_pol:1;
u8 spec_inv:1;
u8 agc_inv:1;
u8 clock_out;
u8 envelope_mode:1;
u8 agc;
u8 lnb_hv_pol:1;
u8 lnb_en_pol:1;
};
#if defined(CONFIG_DVB_M88DS3103) || \
(defined(CONFIG_DVB_M88DS3103_MODULE) && defined(MODULE))
/**
* Attach a m88ds3103 demod
*
* @config: pointer to &struct m88ds3103_config with demod configuration.
* @i2c: i2c adapter to use.
* @tuner_i2c: on success, returns the I2C adapter associated with
* m88ds3103 tuner.
*
* return: FE pointer on success, NULL on failure.
* Note: Do not add new m88ds3103_attach() users! Use I2C bindings instead.
*/
extern struct dvb_frontend *m88ds3103_attach(
const struct m88ds3103_config *config,
struct i2c_adapter *i2c,
struct i2c_adapter **tuner_i2c);
extern int m88ds3103_get_agc_pwm(struct dvb_frontend *fe, u8 *_agc_pwm);
#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;
}
#define m88ds3103_get_agc_pwm NULL
#endif
#endif
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