// SPDX-License-Identifier: GPL-2.0-only /* * ADMV8818 driver * * Copyright 2021 Analog Devices Inc. */ #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/iio/iio.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/notifier.h> #include <linux/regmap.h> #include <linux/spi/spi.h> #include <linux/units.h> /* ADMV8818 Register Map */ #define ADMV8818_REG_SPI_CONFIG_A … #define ADMV8818_REG_SPI_CONFIG_B … #define ADMV8818_REG_CHIPTYPE … #define ADMV8818_REG_PRODUCT_ID_L … #define ADMV8818_REG_PRODUCT_ID_H … #define ADMV8818_REG_FAST_LATCH_POINTER … #define ADMV8818_REG_FAST_LATCH_STOP … #define ADMV8818_REG_FAST_LATCH_START … #define ADMV8818_REG_FAST_LATCH_DIRECTION … #define ADMV8818_REG_FAST_LATCH_STATE … #define ADMV8818_REG_WR0_SW … #define ADMV8818_REG_WR0_FILTER … #define ADMV8818_REG_WR1_SW … #define ADMV8818_REG_WR1_FILTER … #define ADMV8818_REG_WR2_SW … #define ADMV8818_REG_WR2_FILTER … #define ADMV8818_REG_WR3_SW … #define ADMV8818_REG_WR3_FILTER … #define ADMV8818_REG_WR4_SW … #define ADMV8818_REG_WR4_FILTER … #define ADMV8818_REG_LUT0_SW … #define ADMV8818_REG_LUT0_FILTER … #define ADMV8818_REG_LUT127_SW … #define ADMV8818_REG_LUT127_FILTER … /* ADMV8818_REG_SPI_CONFIG_A Map */ #define ADMV8818_SOFTRESET_N_MSK … #define ADMV8818_LSB_FIRST_N_MSK … #define ADMV8818_ENDIAN_N_MSK … #define ADMV8818_SDOACTIVE_N_MSK … #define ADMV8818_SDOACTIVE_MSK … #define ADMV8818_ENDIAN_MSK … #define ADMV8818_LSBFIRST_MSK … #define ADMV8818_SOFTRESET_MSK … /* ADMV8818_REG_SPI_CONFIG_B Map */ #define ADMV8818_SINGLE_INSTRUCTION_MSK … #define ADMV8818_CSB_STALL_MSK … #define ADMV8818_MASTER_SLAVE_RB_MSK … #define ADMV8818_MASTER_SLAVE_TRANSFER_MSK … /* ADMV8818_REG_WR0_SW Map */ #define ADMV8818_SW_IN_SET_WR0_MSK … #define ADMV8818_SW_OUT_SET_WR0_MSK … #define ADMV8818_SW_IN_WR0_MSK … #define ADMV8818_SW_OUT_WR0_MSK … /* ADMV8818_REG_WR0_FILTER Map */ #define ADMV8818_HPF_WR0_MSK … #define ADMV8818_LPF_WR0_MSK … enum { … }; enum { … }; struct admv8818_state { … }; static const unsigned long long freq_range_hpf[4][2] = …; static const unsigned long long freq_range_lpf[4][2] = …; static const struct regmap_config admv8818_regmap_config = …; static const char * const admv8818_modes[] = …; static int __admv8818_hpf_select(struct admv8818_state *st, u64 freq) { … } static int admv8818_hpf_select(struct admv8818_state *st, u64 freq) { … } static int __admv8818_lpf_select(struct admv8818_state *st, u64 freq) { … } static int admv8818_lpf_select(struct admv8818_state *st, u64 freq) { … } static int admv8818_rfin_band_select(struct admv8818_state *st) { … } static int __admv8818_read_hpf_freq(struct admv8818_state *st, u64 *hpf_freq) { … } static int admv8818_read_hpf_freq(struct admv8818_state *st, u64 *hpf_freq) { … } static int __admv8818_read_lpf_freq(struct admv8818_state *st, u64 *lpf_freq) { … } static int admv8818_read_lpf_freq(struct admv8818_state *st, u64 *lpf_freq) { … } static int admv8818_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long info) { … } static int admv8818_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long info) { … } static int admv8818_reg_access(struct iio_dev *indio_dev, unsigned int reg, unsigned int write_val, unsigned int *read_val) { … } static int admv8818_filter_bypass(struct admv8818_state *st) { … } static int admv8818_get_mode(struct iio_dev *indio_dev, const struct iio_chan_spec *chan) { … } static int admv8818_set_mode(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, unsigned int mode) { … } static const struct iio_info admv8818_info = …; static const struct iio_enum admv8818_mode_enum = …; static const struct iio_chan_spec_ext_info admv8818_ext_info[] = …; #define ADMV8818_CHAN(_channel) … #define ADMV8818_CHAN_BW_CF(_channel, _admv8818_ext_info) … static const struct iio_chan_spec admv8818_channels[] = …; static int admv8818_freq_change(struct notifier_block *nb, unsigned long action, void *data) { … } static void admv8818_clk_notifier_unreg(void *data) { … } static void admv8818_clk_disable(void *data) { … } static int admv8818_init(struct admv8818_state *st) { … } static int admv8818_clk_setup(struct admv8818_state *st) { … } static int admv8818_probe(struct spi_device *spi) { … } static const struct spi_device_id admv8818_id[] = …; MODULE_DEVICE_TABLE(spi, admv8818_id); static const struct of_device_id admv8818_of_match[] = …; MODULE_DEVICE_TABLE(of, admv8818_of_match); static struct spi_driver admv8818_driver = …; module_spi_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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