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This patch adds driver support for the MAX2175 chip. This is Maxim Integrated's RF to Bits tuner front end chip designed for software-defined radio solutions. This driver exposes the tuner as a sub-device instance with standard and custom controls to configure the device. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
110 lines
2.3 KiB
C
110 lines
2.3 KiB
C
/*
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* Maxim Integrated MAX2175 RF to Bits tuner driver
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*
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* This driver & most of the hard coded values are based on the reference
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* application delivered by Maxim for this device.
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*
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* Copyright (C) 2016 Maxim Integrated Products
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* Copyright (C) 2017 Renesas Electronics Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __MAX2175_H__
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#define __MAX2175_H__
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#define MAX2175_EU_XTAL_FREQ 36864000 /* In Hz */
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#define MAX2175_NA_XTAL_FREQ 40186125 /* In Hz */
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enum max2175_region {
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MAX2175_REGION_EU = 0, /* Europe */
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MAX2175_REGION_NA, /* North America */
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};
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enum max2175_band {
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MAX2175_BAND_AM = 0,
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MAX2175_BAND_FM,
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MAX2175_BAND_VHF,
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MAX2175_BAND_L,
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};
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enum max2175_eu_mode {
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/* EU modes */
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MAX2175_EU_FM_1_2 = 0,
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MAX2175_DAB_1_2,
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/*
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* Other possible modes to add in future
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* MAX2175_DAB_1_0,
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* MAX2175_DAB_1_3,
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* MAX2175_EU_FM_2_2,
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* MAX2175_EU_FMHD_4_0,
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* MAX2175_EU_AM_1_0,
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* MAX2175_EU_AM_2_2,
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*/
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};
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enum max2175_na_mode {
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/* NA modes */
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MAX2175_NA_FM_1_0 = 0,
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MAX2175_NA_FM_2_0,
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/*
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* Other possible modes to add in future
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* MAX2175_NA_FMHD_1_0,
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* MAX2175_NA_FMHD_1_2,
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* MAX2175_NA_AM_1_0,
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* MAX2175_NA_AM_1_2,
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*/
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};
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/* Supported I2S modes */
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enum {
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MAX2175_I2S_MODE0 = 0,
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MAX2175_I2S_MODE1,
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MAX2175_I2S_MODE2,
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MAX2175_I2S_MODE3,
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MAX2175_I2S_MODE4,
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};
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/* Coefficient table groups */
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enum {
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MAX2175_CH_MSEL = 0,
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MAX2175_EQ_MSEL,
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MAX2175_AA_MSEL,
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};
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/* HSLS LO injection polarity */
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enum {
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MAX2175_LO_BELOW_DESIRED = 0,
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MAX2175_LO_ABOVE_DESIRED,
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};
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/* Channel FSM modes */
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enum max2175_csm_mode {
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MAX2175_LOAD_TO_BUFFER = 0,
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MAX2175_PRESET_TUNE,
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MAX2175_SEARCH,
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MAX2175_AF_UPDATE,
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MAX2175_JUMP_FAST_TUNE,
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MAX2175_CHECK,
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MAX2175_LOAD_AND_SWAP,
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MAX2175_END,
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MAX2175_BUFFER_PLUS_PRESET_TUNE,
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MAX2175_BUFFER_PLUS_SEARCH,
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MAX2175_BUFFER_PLUS_AF_UPDATE,
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MAX2175_BUFFER_PLUS_JUMP_FAST_TUNE,
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MAX2175_BUFFER_PLUS_CHECK,
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MAX2175_BUFFER_PLUS_LOAD_AND_SWAP,
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MAX2175_NO_ACTION
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};
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#endif /* __MAX2175_H__ */
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