// SPDX-License-Identifier: GPL-2.0+ /* * DA7280 Haptic device driver * * Copyright (c) 2020 Dialog Semiconductor. * Author: Roy Im <[email protected]> */ #include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/pwm.h> #include <linux/regmap.h> #include <linux/workqueue.h> #include <linux/uaccess.h> /* Registers */ #define DA7280_IRQ_EVENT1 … #define DA7280_IRQ_EVENT_WARNING_DIAG … #define DA7280_IRQ_EVENT_SEQ_DIAG … #define DA7280_IRQ_STATUS1 … #define DA7280_IRQ_MASK1 … #define DA7280_FRQ_LRA_PER_H … #define DA7280_FRQ_LRA_PER_L … #define DA7280_ACTUATOR1 … #define DA7280_ACTUATOR2 … #define DA7280_ACTUATOR3 … #define DA7280_CALIB_V2I_H … #define DA7280_CALIB_V2I_L … #define DA7280_TOP_CFG1 … #define DA7280_TOP_CFG2 … #define DA7280_TOP_CFG4 … #define DA7280_TOP_INT_CFG1 … #define DA7280_TOP_CTL1 … #define DA7280_TOP_CTL2 … #define DA7280_SEQ_CTL2 … #define DA7280_GPI_0_CTL … #define DA7280_GPI_1_CTL … #define DA7280_GPI_2_CTL … #define DA7280_MEM_CTL1 … #define DA7280_MEM_CTL2 … #define DA7280_TOP_CFG5 … #define DA7280_IRQ_MASK2 … #define DA7280_SNP_MEM_99 … /* Register field */ /* DA7280_IRQ_EVENT1 (Address 0x03) */ #define DA7280_E_SEQ_CONTINUE_MASK … #define DA7280_E_UVLO_MASK … #define DA7280_E_SEQ_DONE_MASK … #define DA7280_E_OVERTEMP_CRIT_MASK … #define DA7280_E_SEQ_FAULT_MASK … #define DA7280_E_WARNING_MASK … #define DA7280_E_ACTUATOR_FAULT_MASK … #define DA7280_E_OC_FAULT_MASK … /* DA7280_IRQ_EVENT_WARNING_DIAG (Address 0x04) */ #define DA7280_E_OVERTEMP_WARN_MASK … #define DA7280_E_MEM_TYPE_MASK … #define DA7280_E_LIM_DRIVE_ACC_MASK … #define DA7280_E_LIM_DRIVE_MASK … /* DA7280_IRQ_EVENT_PAT_DIAG (Address 0x05) */ #define DA7280_E_PWM_FAULT_MASK … #define DA7280_E_MEM_FAULT_MASK … #define DA7280_E_SEQ_ID_FAULT_MASK … /* DA7280_IRQ_STATUS1 (Address 0x06) */ #define DA7280_STA_SEQ_CONTINUE_MASK … #define DA7280_STA_UVLO_VBAT_OK_MASK … #define DA7280_STA_SEQ_DONE_MASK … #define DA7280_STA_OVERTEMP_CRIT_MASK … #define DA7280_STA_SEQ_FAULT_MASK … #define DA7280_STA_WARNING_MASK … #define DA7280_STA_ACTUATOR_MASK … #define DA7280_STA_OC_MASK … /* DA7280_IRQ_MASK1 (Address 0x07) */ #define DA7280_SEQ_CONTINUE_M_MASK … #define DA7280_E_UVLO_M_MASK … #define DA7280_SEQ_DONE_M_MASK … #define DA7280_OVERTEMP_CRIT_M_MASK … #define DA7280_SEQ_FAULT_M_MASK … #define DA7280_WARNING_M_MASK … #define DA7280_ACTUATOR_M_MASK … #define DA7280_OC_M_MASK … /* DA7280_ACTUATOR3 (Address 0x0e) */ #define DA7280_IMAX_MASK … /* DA7280_TOP_CFG1 (Address 0x13) */ #define DA7280_AMP_PID_EN_MASK … #define DA7280_RAPID_STOP_EN_MASK … #define DA7280_ACCELERATION_EN_MASK … #define DA7280_FREQ_TRACK_EN_MASK … #define DA7280_BEMF_SENSE_EN_MASK … #define DA7280_ACTUATOR_TYPE_MASK … /* DA7280_TOP_CFG2 (Address 0x14) */ #define DA7280_FULL_BRAKE_THR_MASK … #define DA7280_MEM_DATA_SIGNED_MASK … /* DA7280_TOP_CFG4 (Address 0x16) */ #define DA7280_TST_CALIB_IMPEDANCE_DIS_MASK … #define DA7280_V2I_FACTOR_FREEZE_MASK … /* DA7280_TOP_INT_CFG1 (Address 0x17) */ #define DA7280_BEMF_FAULT_LIM_MASK … /* DA7280_TOP_CTL1 (Address 0x22) */ #define DA7280_OPERATION_MODE_MASK … #define DA7280_STANDBY_EN_MASK … #define DA7280_SEQ_START_MASK … /* DA7280_SEQ_CTL2 (Address 0x28) */ #define DA7280_PS_SEQ_ID_MASK … #define DA7280_PS_SEQ_LOOP_MASK … /* DA7280_GPIO_0_CTL (Address 0x29) */ #define DA7280_GPI0_POLARITY_MASK … #define DA7280_GPI0_MODE_MASK … #define DA7280_GPI0_SEQUENCE_ID_MASK … /* DA7280_GPIO_1_CTL (Address 0x2a) */ #define DA7280_GPI1_POLARITY_MASK … #define DA7280_GPI1_MODE_MASK … #define DA7280_GPI1_SEQUENCE_ID_MASK … /* DA7280_GPIO_2_CTL (Address 0x2b) */ #define DA7280_GPI2_POLARITY_MASK … #define DA7280_GPI2_MODE_MASK … #define DA7280_GPI2_SEQUENCE_ID_MASK … /* DA7280_MEM_CTL2 (Address 0x2d) */ #define DA7280_WAV_MEM_LOCK_MASK … /* DA7280_TOP_CFG5 (Address 0x6e) */ #define DA7280_V2I_FACTOR_OFFSET_EN_MASK … /* DA7280_IRQ_MASK2 (Address 0x83) */ #define DA7280_ADC_SAT_M_MASK … /* Controls */ #define DA7280_VOLTAGE_RATE_MAX … #define DA7280_VOLTAGE_RATE_STEP … #define DA7280_NOMMAX_DFT … #define DA7280_ABSMAX_DFT … #define DA7280_IMPD_MAX … #define DA7280_IMPD_DEFAULT … #define DA7280_IMAX_DEFAULT … #define DA7280_IMAX_STEP … #define DA7280_IMAX_LIMIT … #define DA7280_RESONT_FREQH_DFT … #define DA7280_RESONT_FREQL_DFT … #define DA7280_MIN_RESONAT_FREQ_HZ … #define DA7280_MAX_RESONAT_FREQ_HZ … #define DA7280_SEQ_ID_MAX … #define DA7280_SEQ_LOOP_MAX … #define DA7280_GPI_SEQ_ID_DFT … #define DA7280_GPI_SEQ_ID_MAX … #define DA7280_SNP_MEM_SIZE … #define DA7280_SNP_MEM_MAX … #define DA7280_IRQ_NUM … #define DA7280_SKIP_INIT … #define DA7280_FF_EFFECT_COUNT_MAX … /* Maximum gain is 0x7fff for PWM mode */ #define DA7280_MAX_MAGNITUDE_SHIFT … enum da7280_haptic_dev_t { … }; enum da7280_op_mode { … }; #define DA7280_FF_CONSTANT_DRO … #define DA7280_FF_PERIODIC_PWM … #define DA7280_FF_PERIODIC_RTWM … #define DA7280_FF_PERIODIC_ETWM … #define DA7280_FF_PERIODIC_MODE … #define DA7280_FF_CONSTANT_MODE … enum da7280_custom_effect_param { … }; enum da7280_custom_gpi_effect_param { … }; struct da7280_gpi_ctl { … }; struct da7280_haptic { … }; static bool da7280_volatile_register(struct device *dev, unsigned int reg) { … } static const struct regmap_config da7280_haptic_regmap_config = …; static int da7280_haptic_mem_update(struct da7280_haptic *haptics) { … } static int da7280_haptic_set_pwm(struct da7280_haptic *haptics, bool enabled) { … } static void da7280_haptic_activate(struct da7280_haptic *haptics) { … } static void da7280_haptic_deactivate(struct da7280_haptic *haptics) { … } static void da7280_haptic_work(struct work_struct *work) { … } static int da7280_haptics_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old) { … } static int da7280_haptics_playback(struct input_dev *dev, int effect_id, int val) { … } static int da7280_haptic_start(struct da7280_haptic *haptics) { … } static void da7280_haptic_stop(struct da7280_haptic *haptics) { … } static int da7280_haptic_open(struct input_dev *dev) { … } static void da7280_haptic_close(struct input_dev *dev) { … } static u8 da7280_haptic_of_mode_str(struct device *dev, const char *str) { … } static u8 da7280_haptic_of_gpi_mode_str(struct device *dev, const char *str) { … } static u8 da7280_haptic_of_gpi_pol_str(struct device *dev, const char *str) { … } static u8 da7280_haptic_of_volt_rating_set(u32 val) { … } static void da7280_parse_properties(struct device *dev, struct da7280_haptic *haptics) { … } static irqreturn_t da7280_irq_handler(int irq, void *data) { … } static int da7280_init(struct da7280_haptic *haptics) { … } static int da7280_probe(struct i2c_client *client) { … } static int da7280_suspend(struct device *dev) { … } static int da7280_resume(struct device *dev) { … } #ifdef CONFIG_OF static const struct of_device_id da7280_of_match[] = …; MODULE_DEVICE_TABLE(of, da7280_of_match); #endif static const struct i2c_device_id da7280_i2c_id[] = …; MODULE_DEVICE_TABLE(i2c, da7280_i2c_id); static DEFINE_SIMPLE_DEV_PM_OPS(da7280_pm_ops, da7280_suspend, da7280_resume); static struct i2c_driver da7280_driver = …; module_i2c_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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