// SPDX-License-Identifier: GPL-2.0-only /* * DRV260X haptics driver family * * Author: Dan Murphy <[email protected]> * * Copyright: (C) 2014 Texas Instruments, Inc. */ #include <linux/i2c.h> #include <linux/input.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> #include <dt-bindings/input/ti-drv260x.h> #define DRV260X_STATUS … #define DRV260X_MODE … #define DRV260X_RT_PB_IN … #define DRV260X_LIB_SEL … #define DRV260X_WV_SEQ_1 … #define DRV260X_WV_SEQ_2 … #define DRV260X_WV_SEQ_3 … #define DRV260X_WV_SEQ_4 … #define DRV260X_WV_SEQ_5 … #define DRV260X_WV_SEQ_6 … #define DRV260X_WV_SEQ_7 … #define DRV260X_WV_SEQ_8 … #define DRV260X_GO … #define DRV260X_OVERDRIVE_OFF … #define DRV260X_SUSTAIN_P_OFF … #define DRV260X_SUSTAIN_N_OFF … #define DRV260X_BRAKE_OFF … #define DRV260X_A_TO_V_CTRL … #define DRV260X_A_TO_V_MIN_INPUT … #define DRV260X_A_TO_V_MAX_INPUT … #define DRV260X_A_TO_V_MIN_OUT … #define DRV260X_A_TO_V_MAX_OUT … #define DRV260X_RATED_VOLT … #define DRV260X_OD_CLAMP_VOLT … #define DRV260X_CAL_COMP … #define DRV260X_CAL_BACK_EMF … #define DRV260X_FEEDBACK_CTRL … #define DRV260X_CTRL1 … #define DRV260X_CTRL2 … #define DRV260X_CTRL3 … #define DRV260X_CTRL4 … #define DRV260X_CTRL5 … #define DRV260X_LRA_LOOP_PERIOD … #define DRV260X_VBAT_MON … #define DRV260X_LRA_RES_PERIOD … #define DRV260X_MAX_REG … #define DRV260X_GO_BIT … /* Library Selection */ #define DRV260X_LIB_SEL_MASK … #define DRV260X_LIB_SEL_RAM … #define DRV260X_LIB_SEL_OD … #define DRV260X_LIB_SEL_40_60 … #define DRV260X_LIB_SEL_60_80 … #define DRV260X_LIB_SEL_100_140 … #define DRV260X_LIB_SEL_140_PLUS … #define DRV260X_LIB_SEL_HIZ_MASK … #define DRV260X_LIB_SEL_HIZ_EN … #define DRV260X_LIB_SEL_HIZ_DIS … /* Mode register */ #define DRV260X_STANDBY … #define DRV260X_STANDBY_MASK … #define DRV260X_INTERNAL_TRIGGER … #define DRV260X_EXT_TRIGGER_EDGE … #define DRV260X_EXT_TRIGGER_LEVEL … #define DRV260X_PWM_ANALOG_IN … #define DRV260X_AUDIOHAPTIC … #define DRV260X_RT_PLAYBACK … #define DRV260X_DIAGNOSTICS … #define DRV260X_AUTO_CAL … /* Audio to Haptics Control */ #define DRV260X_AUDIO_HAPTICS_PEAK_10MS … #define DRV260X_AUDIO_HAPTICS_PEAK_20MS … #define DRV260X_AUDIO_HAPTICS_PEAK_30MS … #define DRV260X_AUDIO_HAPTICS_PEAK_40MS … #define DRV260X_AUDIO_HAPTICS_FILTER_100HZ … #define DRV260X_AUDIO_HAPTICS_FILTER_125HZ … #define DRV260X_AUDIO_HAPTICS_FILTER_150HZ … #define DRV260X_AUDIO_HAPTICS_FILTER_200HZ … /* Min/Max Input/Output Voltages */ #define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT … #define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT … #define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT … #define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT … /* Feedback register */ #define DRV260X_FB_REG_ERM_MODE … #define DRV260X_FB_REG_LRA_MODE … #define DRV260X_BRAKE_FACTOR_MASK … #define DRV260X_BRAKE_FACTOR_2X … #define DRV260X_BRAKE_FACTOR_3X … #define DRV260X_BRAKE_FACTOR_4X … #define DRV260X_BRAKE_FACTOR_6X … #define DRV260X_BRAKE_FACTOR_8X … #define DRV260X_BRAKE_FACTOR_16 … #define DRV260X_BRAKE_FACTOR_DIS … #define DRV260X_LOOP_GAIN_LOW … #define DRV260X_LOOP_GAIN_MED … #define DRV260X_LOOP_GAIN_HIGH … #define DRV260X_LOOP_GAIN_VERY_HIGH … #define DRV260X_BEMF_GAIN_0 … #define DRV260X_BEMF_GAIN_1 … #define DRV260X_BEMF_GAIN_2 … #define DRV260X_BEMF_GAIN_3 … /* Control 1 register */ #define DRV260X_AC_CPLE_EN … #define DRV260X_STARTUP_BOOST … /* Control 2 register */ #define DRV260X_IDISS_TIME_45 … #define DRV260X_IDISS_TIME_75 … #define DRV260X_IDISS_TIME_150 … #define DRV260X_IDISS_TIME_225 … #define DRV260X_BLANK_TIME_45 … #define DRV260X_BLANK_TIME_75 … #define DRV260X_BLANK_TIME_150 … #define DRV260X_BLANK_TIME_225 … #define DRV260X_SAMP_TIME_150 … #define DRV260X_SAMP_TIME_200 … #define DRV260X_SAMP_TIME_250 … #define DRV260X_SAMP_TIME_300 … #define DRV260X_BRAKE_STABILIZER … #define DRV260X_UNIDIR_IN … #define DRV260X_BIDIR_IN … /* Control 3 Register */ #define DRV260X_LRA_OPEN_LOOP … #define DRV260X_ANALOG_IN … #define DRV260X_LRA_DRV_MODE … #define DRV260X_RTP_UNSIGNED_DATA … #define DRV260X_SUPPLY_COMP_DIS … #define DRV260X_ERM_OPEN_LOOP … #define DRV260X_NG_THRESH_0 … #define DRV260X_NG_THRESH_2 … #define DRV260X_NG_THRESH_4 … #define DRV260X_NG_THRESH_8 … /* Control 4 Register */ #define DRV260X_AUTOCAL_TIME_150MS … #define DRV260X_AUTOCAL_TIME_250MS … #define DRV260X_AUTOCAL_TIME_500MS … #define DRV260X_AUTOCAL_TIME_1000MS … /** * struct drv260x_data - * @input_dev: Pointer to the input device * @client: Pointer to the I2C client * @regmap: Register map of the device * @work: Work item used to off load the enable/disable of the vibration * @enable_gpio: Pointer to the gpio used for enable/disabling * @regulator: Pointer to the regulator for the IC * @magnitude: Magnitude of the vibration event * @mode: The operating mode of the IC (LRA_NO_CAL, ERM or LRA) * @library: The vibration library to be used * @rated_voltage: The rated_voltage of the actuator * @overdrive_voltage: The over drive voltage of the actuator **/ struct drv260x_data { … }; #define DRV260X_DEF_RATED_VOLT … #define DRV260X_DEF_OD_CLAMP_VOLT … /* * Rated and Overdriver Voltages: * Calculated using the formula r = v * 255 / 5.6 * where r is what will be written to the register * and v is the rated or overdriver voltage of the actuator */ static int drv260x_calculate_voltage(unsigned int voltage) { … } static void drv260x_worker(struct work_struct *work) { … } static int drv260x_haptics_play(struct input_dev *input, void *data, struct ff_effect *effect) { … } static void drv260x_close(struct input_dev *input) { … } static const struct reg_sequence drv260x_lra_cal_regs[] = …; static const struct reg_sequence drv260x_lra_init_regs[] = …; static const struct reg_sequence drv260x_erm_cal_regs[] = …; static int drv260x_init(struct drv260x_data *haptics) { … } static const struct regmap_config drv260x_regmap_config = …; static int drv260x_probe(struct i2c_client *client) { … } static int drv260x_suspend(struct device *dev) { … } static int drv260x_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume); static const struct i2c_device_id drv260x_id[] = …; MODULE_DEVICE_TABLE(i2c, drv260x_id); static const struct of_device_id drv260x_of_match[] = …; MODULE_DEVICE_TABLE(of, drv260x_of_match); static struct i2c_driver drv260x_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …;
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