drivers: stepper: adi: trinamic tmc5041
This commit introduces initial structure for trinamic drivers TMC5041 is implemented with following features: - StallGuard - RAMPSTAT_POLL - RAMP_GEN Signed-off-by: Dipak Shetty <dipak.shetty@zeiss.com> Signed-off-by: Jilay Pandya <jilay.pandya@zeiss.com>
This commit is contained in:
parent
42c43b9f9c
commit
52c6a289f1
15 changed files with 1652 additions and 1 deletions
762
drivers/stepper/adi_tmc/adi_tmc5041_stepper_controller.c
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762
drivers/stepper/adi_tmc/adi_tmc5041_stepper_controller.c
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/*
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* SPDX-FileCopyrightText: Copyright (c) 2024 Carl Zeiss Meditec AG
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT adi_tmc5041
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#include "stdlib.h"
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#include <zephyr/drivers/stepper.h>
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#include <zephyr/drivers/stepper/stepper_trinamic.h>
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#include "adi_tmc_reg.h"
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#include "adi_tmc_spi.h"
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(tmc5041, CONFIG_STEPPER_LOG_LEVEL);
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struct tmc5041_data {
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struct k_sem sem;
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};
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struct tmc5041_config {
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const uint32_t gconf;
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struct spi_dt_spec spi;
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const uint32_t clock_frequency;
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};
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struct tmc5041_stepper_data {
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struct k_work_delayable stallguard_dwork;
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/* Work item to run the callback in a thread context. */
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#ifdef CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL
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struct k_work_delayable rampstat_callback_dwork;
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#endif
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/* device pointer required to access config in k_work */
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const struct device *stepper;
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struct k_poll_signal *async_signal;
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};
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struct tmc5041_stepper_config {
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const uint8_t index;
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const uint16_t default_micro_step_res;
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const int8_t sg_threshold;
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const bool is_sg_enabled;
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const uint32_t sg_velocity_check_interval_ms;
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const uint32_t sg_threshold_velocity;
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/* parent controller required for bus communication */
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const struct device *controller;
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#ifdef CONFIG_STEPPER_ADI_TMC_RAMP_GEN
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const struct tmc_ramp_generator_data default_ramp_config;
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#endif
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};
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static int tmc5041_write(const struct device *dev, const uint8_t reg_addr, const uint32_t reg_val)
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{
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const struct tmc5041_config *config = dev->config;
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struct tmc5041_data *data = dev->data;
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const struct spi_dt_spec bus = config->spi;
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int err;
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k_sem_take(&data->sem, K_FOREVER);
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err = tmc_spi_write_register(&bus, TMC5041_WRITE_BIT, reg_addr, reg_val);
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k_sem_give(&data->sem);
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if (err) {
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LOG_ERR("Failed to write register 0x%x with value 0x%x", reg_addr, reg_val);
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return err;
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}
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return 0;
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}
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static int tmc5041_read(const struct device *dev, const uint8_t reg_addr, uint32_t *reg_val)
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{
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const struct tmc5041_config *config = dev->config;
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struct tmc5041_data *data = dev->data;
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const struct spi_dt_spec bus = config->spi;
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int err;
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k_sem_take(&data->sem, K_FOREVER);
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err = tmc_spi_read_register(&bus, TMC5041_ADDRESS_MASK, reg_addr, reg_val);
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k_sem_give(&data->sem);
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if (err) {
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LOG_ERR("Failed to read register 0x%x", reg_addr);
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return err;
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}
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return 0;
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}
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static void calculate_velocity_from_hz_to_fclk(const struct device *dev, const uint32_t velocity_hz,
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uint32_t *const velocity_fclk)
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{
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const struct tmc5041_config *config = dev->config;
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*velocity_fclk =
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((uint64_t)(velocity_hz) << TMC5041_CLOCK_FREQ_SHIFT) / config->clock_frequency;
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LOG_DBG("Stepper motor controller %s velocity: %d Hz, velocity_fclk: %d", dev->name,
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velocity_hz, *velocity_fclk);
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}
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static void set_async_signal(const struct device *dev, struct k_poll_signal *async)
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{
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struct tmc5041_stepper_data *data = dev->data;
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if (!async) {
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return;
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}
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if (data->async_signal) {
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k_poll_signal_reset(data->async_signal);
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}
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data->async_signal = async;
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}
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static int stallguard_enable(const struct device *dev, const bool enable)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t reg_value;
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int err;
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err = tmc5041_read(config->controller, TMC5041_SWMODE(config->index), ®_value);
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if (err) {
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LOG_ERR("Failed to read SWMODE register");
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return -EIO;
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}
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if (enable) {
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reg_value |= TMC5041_SW_MODE_SG_STOP_ENABLE;
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int32_t actual_velocity;
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err = tmc5041_read(config->controller, TMC5041_VACTUAL(config->index),
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&actual_velocity);
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if (err) {
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LOG_ERR("Failed to read VACTUAL register");
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return -EIO;
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}
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actual_velocity = (actual_velocity << (31 - TMC_RAMP_VACTUAL_SHIFT)) >>
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(31 - TMC_RAMP_VACTUAL_SHIFT);
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LOG_DBG("actual velocity: %d", actual_velocity);
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if (abs(actual_velocity) < config->sg_threshold_velocity) {
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return -EAGAIN;
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}
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} else {
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reg_value &= ~TMC5041_SW_MODE_SG_STOP_ENABLE;
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}
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err = tmc5041_write(config->controller, TMC5041_SWMODE(config->index), reg_value);
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if (err) {
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LOG_ERR("Failed to write SWMODE register");
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return -EIO;
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}
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return 0;
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}
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static void stallguard_work_handler(struct k_work *work)
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{
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struct k_work_delayable *dwork = k_work_delayable_from_work(work);
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struct tmc5041_stepper_data *stepper_data =
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CONTAINER_OF(dwork, struct tmc5041_stepper_data, stallguard_dwork);
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int err;
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const struct tmc5041_stepper_config *stepper_config = stepper_data->stepper->config;
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err = stallguard_enable(stepper_data->stepper, true);
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if (err == -EAGAIN) {
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LOG_ERR("retrying stallguard activation");
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k_work_reschedule(dwork, K_MSEC(stepper_config->sg_velocity_check_interval_ms));
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}
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if (err == -EIO) {
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LOG_ERR("Failed to enable stallguard because of I/O error");
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return;
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}
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}
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#ifdef CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL
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static void emit_signal(struct k_poll_signal *async_signal, const enum stepper_signal_result signal)
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{
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int err;
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if (!async_signal) {
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LOG_WRN("Async signal is NULL");
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return;
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}
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err = k_poll_signal_raise(async_signal, signal);
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if (err != 0) {
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LOG_ERR("Failed to raise signal %d error %d", signal, err);
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}
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}
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static void rampstat_work_handler(struct k_work *work)
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{
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struct k_work_delayable *dwork = k_work_delayable_from_work(work);
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struct tmc5041_stepper_data *stepper_data =
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CONTAINER_OF(dwork, struct tmc5041_stepper_data, rampstat_callback_dwork);
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const struct tmc5041_stepper_config *stepper_config = stepper_data->stepper->config;
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__ASSERT_NO_MSG(stepper_config->controller != NULL);
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uint32_t drv_status;
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int err;
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tmc5041_read(stepper_config->controller, TMC5041_DRVSTATUS(stepper_config->index),
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&drv_status);
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if (FIELD_GET(TMC5041_DRV_STATUS_SG_STATUS_MASK, drv_status) == 1U) {
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LOG_INF("%s: Stall detected", stepper_data->stepper->name);
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err = tmc5041_write(stepper_config->controller,
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TMC5041_RAMPMODE(stepper_config->index),
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TMC5041_RAMPMODE_HOLD_MODE);
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if (err != 0) {
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LOG_ERR("%s: Failed to stop motor", stepper_data->stepper->name);
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return;
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}
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}
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uint32_t rampstat_value;
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err = tmc5041_read(stepper_config->controller, TMC5041_RAMPSTAT(stepper_config->index),
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&rampstat_value);
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if (err != 0) {
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LOG_ERR("%s: Failed to read RAMPSTAT register", stepper_data->stepper->name);
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return;
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}
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const uint8_t ramp_stat_values = FIELD_GET(TMC5041_RAMPSTAT_INT_MASK, rampstat_value);
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if (ramp_stat_values > 0) {
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switch (ramp_stat_values) {
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case TMC5041_STOP_LEFT_EVENT:
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LOG_DBG("RAMPSTAT %s:Left end-stop detected", stepper_data->stepper->name);
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emit_signal(stepper_data->async_signal,
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STEPPER_SIGNAL_LEFT_END_STOP_DETECTED);
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break;
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case TMC5041_STOP_RIGHT_EVENT:
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LOG_DBG("RAMPSTAT %s:Right end-stop detected", stepper_data->stepper->name);
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emit_signal(stepper_data->async_signal,
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STEPPER_SIGNAL_RIGHT_END_STOP_DETECTED);
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break;
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case TMC5041_POS_REACHED_EVENT:
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LOG_DBG("RAMPSTAT %s:Position reached", stepper_data->stepper->name);
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emit_signal(stepper_data->async_signal, STEPPER_SIGNAL_STEPS_COMPLETED);
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break;
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case TMC5041_STOP_SG_EVENT:
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LOG_DBG("RAMPSTAT %s:Stall detected", stepper_data->stepper->name);
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stallguard_enable(stepper_data->stepper, false);
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emit_signal(stepper_data->async_signal,
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STEPPER_SIGNAL_SENSORLESS_STALL_DETECTED);
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break;
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default:
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LOG_ERR("Illegal ramp stat bit field");
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break;
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}
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} else {
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k_work_reschedule(
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&stepper_data->rampstat_callback_dwork,
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K_MSEC(CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL_INTERVAL_IN_MSEC));
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}
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}
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#endif
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static int tmc5041_stepper_enable(const struct device *dev, const bool enable)
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{
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LOG_DBG("Stepper motor controller %s %s", dev->name, enable ? "enabled" : "disabled");
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t reg_value;
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int err;
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err = tmc5041_read(config->controller, TMC5041_CHOPCONF(config->index), ®_value);
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if (err != 0) {
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return -EIO;
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}
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if (enable) {
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reg_value |= TMC5041_CHOPCONF_DRV_ENABLE_MASK;
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} else {
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reg_value &= ~TMC5041_CHOPCONF_DRV_ENABLE_MASK;
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}
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err = tmc5041_write(config->controller, TMC5041_CHOPCONF(config->index), reg_value);
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if (err != 0) {
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return -EIO;
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}
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return 0;
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}
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static int tmc5041_stepper_is_moving(const struct device *dev, bool *is_moving)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t reg_value;
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int err;
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err = tmc5041_read(config->controller, TMC5041_DRVSTATUS(config->index), ®_value);
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if (err != 0) {
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LOG_ERR("%s: Failed to read DRVSTATUS register", dev->name);
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return -EIO;
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}
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*is_moving = (FIELD_GET(TMC5041_DRV_STATUS_STST_BIT, reg_value) != 1U);
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LOG_DBG("Stepper motor controller %s is moving: %d", dev->name, *is_moving);
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return 0;
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}
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static int tmc5041_stepper_move(const struct device *dev, const int32_t steps,
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struct k_poll_signal *async)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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struct tmc5041_stepper_data *data = dev->data;
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int err;
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set_async_signal(dev, async);
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if (config->is_sg_enabled) {
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err = stallguard_enable(dev, false);
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if (err != 0) {
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return -EIO;
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}
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}
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int32_t position;
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err = stepper_get_actual_position(dev, &position);
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if (err != 0) {
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return -EIO;
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}
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int32_t target_position = position + steps;
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err = tmc5041_write(config->controller, TMC5041_RAMPMODE(config->index),
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TMC5041_RAMPMODE_POSITIONING_MODE);
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if (err != 0) {
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return -EIO;
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}
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LOG_DBG("Stepper motor controller %s moved to %d by steps: %d", dev->name, target_position,
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steps);
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err = tmc5041_write(config->controller, TMC5041_XTARGET(config->index), target_position);
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if (err != 0) {
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return -EIO;
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}
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if (config->is_sg_enabled) {
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k_work_reschedule(&data->stallguard_dwork,
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K_MSEC(config->sg_velocity_check_interval_ms));
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}
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#ifdef CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL
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k_work_reschedule(&data->rampstat_callback_dwork,
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K_MSEC(CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL_INTERVAL_IN_MSEC));
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#endif
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return 0;
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}
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static int tmc5041_stepper_set_max_velocity(const struct device *dev, uint32_t velocity)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t velocity_fclk;
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int err;
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calculate_velocity_from_hz_to_fclk(config->controller, velocity, &velocity_fclk);
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err = tmc5041_write(config->controller, TMC5041_VMAX(config->index), velocity_fclk);
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if (err != 0) {
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LOG_ERR("%s: Failed to set max velocity", dev->name);
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return -EIO;
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}
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return 0;
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}
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static int tmc5041_stepper_set_micro_step_res(const struct device *dev,
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enum micro_step_resolution res)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t reg_value;
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int err;
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err = tmc5041_read(config->controller, TMC5041_CHOPCONF(config->index), ®_value);
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if (err != 0) {
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return -EIO;
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}
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reg_value &= ~TMC5041_CHOPCONF_MRES_MASK;
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reg_value |= ((MICRO_STEP_RES_INDEX(STEPPER_MICRO_STEP_256) - LOG2(res))
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<< TMC5041_CHOPCONF_MRES_SHIFT);
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err = tmc5041_write(config->controller, TMC5041_CHOPCONF(config->index), reg_value);
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if (err != 0) {
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return -EIO;
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}
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LOG_DBG("Stepper motor controller %s set micro step resolution to 0x%x", dev->name,
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reg_value);
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return 0;
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}
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static int tmc5041_stepper_get_micro_step_res(const struct device *dev,
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enum micro_step_resolution *res)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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uint32_t reg_value;
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int err;
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err = tmc5041_read(config->controller, TMC5041_CHOPCONF(config->index), ®_value);
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if (err != 0) {
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return -EIO;
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}
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reg_value &= TMC5041_CHOPCONF_MRES_MASK;
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reg_value >>= TMC5041_CHOPCONF_MRES_SHIFT;
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*res = (1 << (MICRO_STEP_RES_INDEX(STEPPER_MICRO_STEP_256) - reg_value));
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LOG_DBG("Stepper motor controller %s get micro step resolution: %d", dev->name, *res);
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return 0;
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}
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static int tmc5041_stepper_set_actual_position(const struct device *dev, const int32_t position)
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{
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const struct tmc5041_stepper_config *config = dev->config;
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int err;
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err = tmc5041_write(config->controller, TMC5041_RAMPMODE(config->index),
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TMC5041_RAMPMODE_HOLD_MODE);
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if (err != 0) {
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return -EIO;
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}
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err = tmc5041_write(config->controller, TMC5041_XACTUAL(config->index), position);
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if (err != 0) {
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return -EIO;
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}
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LOG_DBG("Stepper motor controller %s set actual position to %d", dev->name, position);
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return 0;
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}
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static int tmc5041_stepper_get_actual_position(const struct device *dev, int32_t *position)
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{
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||||
const struct tmc5041_stepper_config *config = dev->config;
|
||||
int err;
|
||||
|
||||
err = tmc5041_read(config->controller, TMC5041_XACTUAL(config->index), position);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
LOG_DBG("%s actual position: %d", dev->name, *position);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tmc5041_stepper_set_target_position(const struct device *dev, const int32_t position,
|
||||
struct k_poll_signal *async)
|
||||
{
|
||||
LOG_DBG("Stepper motor controller %s set target position to %d", dev->name, position);
|
||||
const struct tmc5041_stepper_config *config = dev->config;
|
||||
struct tmc5041_stepper_data *data = dev->data;
|
||||
int err;
|
||||
|
||||
set_async_signal(dev, async);
|
||||
|
||||
if (config->is_sg_enabled) {
|
||||
stallguard_enable(dev, false);
|
||||
}
|
||||
|
||||
err = tmc5041_write(config->controller, TMC5041_RAMPMODE(config->index),
|
||||
TMC5041_RAMPMODE_POSITIONING_MODE);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
tmc5041_write(config->controller, TMC5041_XTARGET(config->index), position);
|
||||
|
||||
if (config->is_sg_enabled) {
|
||||
k_work_reschedule(&data->stallguard_dwork,
|
||||
K_MSEC(config->sg_velocity_check_interval_ms));
|
||||
}
|
||||
#ifdef CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL
|
||||
k_work_reschedule(&data->rampstat_callback_dwork,
|
||||
K_MSEC(CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL_INTERVAL_IN_MSEC));
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tmc5041_stepper_enable_constant_velocity_mode(const struct device *dev,
|
||||
const enum stepper_direction direction,
|
||||
const uint32_t velocity)
|
||||
{
|
||||
LOG_DBG("Stepper motor controller %s enable constant velocity mode", dev->name);
|
||||
const struct tmc5041_stepper_config *config = dev->config;
|
||||
struct tmc5041_stepper_data *data = dev->data;
|
||||
uint32_t velocity_fclk;
|
||||
int err;
|
||||
|
||||
calculate_velocity_from_hz_to_fclk(config->controller, velocity, &velocity_fclk);
|
||||
|
||||
if (config->is_sg_enabled) {
|
||||
err = stallguard_enable(dev, false);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
|
||||
switch (direction) {
|
||||
case STEPPER_DIRECTION_POSITIVE:
|
||||
err = tmc5041_write(config->controller, TMC5041_RAMPMODE(config->index),
|
||||
TMC5041_RAMPMODE_POSITIVE_VELOCITY_MODE);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VMAX(config->index), velocity_fclk);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
break;
|
||||
|
||||
case STEPPER_DIRECTION_NEGATIVE:
|
||||
err = tmc5041_write(config->controller, TMC5041_RAMPMODE(config->index),
|
||||
TMC5041_RAMPMODE_NEGATIVE_VELOCITY_MODE);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VMAX(config->index), velocity_fclk);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (config->is_sg_enabled) {
|
||||
k_work_reschedule(&data->stallguard_dwork,
|
||||
K_MSEC(config->sg_velocity_check_interval_ms));
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_STEPPER_ADI_TMC_RAMP_GEN
|
||||
|
||||
int tmc5041_stepper_set_ramp(const struct device *dev,
|
||||
const struct tmc_ramp_generator_data *ramp_data)
|
||||
{
|
||||
LOG_DBG("Stepper motor controller %s set ramp", dev->name);
|
||||
const struct tmc5041_stepper_config *config = dev->config;
|
||||
int err;
|
||||
|
||||
err = tmc5041_write(config->controller, TMC5041_VSTART(config->index), ramp_data->vstart);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_A1(config->index), ramp_data->a1);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_AMAX(config->index), ramp_data->amax);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_D1(config->index), ramp_data->d1);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_DMAX(config->index), ramp_data->dmax);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_V1(config->index), ramp_data->v1);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VMAX(config->index), ramp_data->vmax);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VSTOP(config->index), ramp_data->vstop);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_TZEROWAIT(config->index),
|
||||
ramp_data->tzerowait);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VHIGH(config->index), ramp_data->vhigh);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_VCOOLTHRS(config->index),
|
||||
ramp_data->vcoolthrs);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = tmc5041_write(config->controller, TMC5041_IHOLD_IRUN(config->index),
|
||||
ramp_data->iholdrun);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
static int tmc5041_init(const struct device *dev)
|
||||
{
|
||||
LOG_DBG("TMC5041 stepper motor controller %s initialized", dev->name);
|
||||
struct tmc5041_data *data = dev->data;
|
||||
const struct tmc5041_config *config = dev->config;
|
||||
int err;
|
||||
|
||||
k_sem_init(&data->sem, 1, 1);
|
||||
|
||||
if (!spi_is_ready_dt(&config->spi)) {
|
||||
LOG_ERR("SPI bus is not ready");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Init non motor-index specific registers here. */
|
||||
LOG_DBG("GCONF: %d", config->gconf);
|
||||
err = tmc5041_write(dev, TMC5041_GCONF, config->gconf);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* Read GSTAT register values to clear any errors SPI Datagram. */
|
||||
uint32_t gstat_value;
|
||||
|
||||
err = tmc5041_read(dev, TMC5041_GSTAT, &gstat_value);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
LOG_DBG("Device %s initialized", dev->name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tmc5041_stepper_init(const struct device *dev)
|
||||
{
|
||||
const struct tmc5041_stepper_config *stepper_config = dev->config;
|
||||
struct tmc5041_stepper_data *data = dev->data;
|
||||
int err;
|
||||
|
||||
LOG_DBG("Controller: %s, Stepper: %s", stepper_config->controller->name, dev->name);
|
||||
|
||||
if (stepper_config->is_sg_enabled) {
|
||||
k_work_init_delayable(&data->stallguard_dwork, stallguard_work_handler);
|
||||
|
||||
err = tmc5041_write(stepper_config->controller,
|
||||
TMC5041_SWMODE(stepper_config->index), BIT(10));
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
LOG_DBG("Setting stall guard to %d with delay %d ms", stepper_config->sg_threshold,
|
||||
stepper_config->sg_velocity_check_interval_ms);
|
||||
if (!IN_RANGE(stepper_config->sg_threshold, TMC5041_SG_MIN_VALUE,
|
||||
TMC5041_SG_MAX_VALUE)) {
|
||||
LOG_ERR("Stallguard threshold out of range");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
int32_t stall_guard_threshold = (int32_t)stepper_config->sg_threshold;
|
||||
|
||||
err = tmc5041_write(
|
||||
stepper_config->controller, TMC5041_COOLCONF(stepper_config->index),
|
||||
stall_guard_threshold << TMC5041_COOLCONF_SG2_THRESHOLD_VALUE_SHIFT);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
err = stallguard_enable(dev, true);
|
||||
if (err == -EAGAIN) {
|
||||
LOG_ERR("retrying stallguard activation");
|
||||
k_work_reschedule(&data->stallguard_dwork,
|
||||
K_MSEC(stepper_config->sg_velocity_check_interval_ms));
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef CONFIG_STEPPER_ADI_TMC_RAMP_GEN
|
||||
err = tmc5041_stepper_set_ramp(dev, &stepper_config->default_ramp_config);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL
|
||||
k_work_init_delayable(&data->rampstat_callback_dwork, rampstat_work_handler);
|
||||
k_work_reschedule(&data->rampstat_callback_dwork,
|
||||
K_MSEC(CONFIG_STEPPER_ADI_TMC5041_RAMPSTAT_POLL_INTERVAL_IN_MSEC));
|
||||
#endif
|
||||
err = tmc5041_stepper_set_micro_step_res(dev, stepper_config->default_micro_step_res);
|
||||
if (err != 0) {
|
||||
return -EIO;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define TMC5041_SHAFT_CONFIG(child) \
|
||||
(DT_PROP(child, invert_direction) << TMC5041_GCONF_SHAFT_SHIFT(DT_REG_ADDR(child))) |
|
||||
|
||||
#define TMC5041_STEPPER_CONFIG_DEFINE(child) \
|
||||
COND_CODE_1(DT_PROP_EXISTS(child, stallguard_threshold_velocity), \
|
||||
BUILD_ASSERT(DT_PROP(child, stallguard_threshold_velocity), \
|
||||
"stallguard threshold velocity must be a positive value"), ()); \
|
||||
IF_ENABLED(CONFIG_STEPPER_ADI_TMC_RAMP_GEN, (CHECK_RAMP_DT_DATA(child))); \
|
||||
static const struct tmc5041_stepper_config tmc5041_stepper_config_##child = { \
|
||||
.controller = DEVICE_DT_GET(DT_PARENT(child)), \
|
||||
.default_micro_step_res = DT_PROP(child, micro_step_res), \
|
||||
.index = DT_REG_ADDR(child), \
|
||||
.sg_threshold = DT_PROP(child, stallguard2_threshold), \
|
||||
.sg_threshold_velocity = DT_PROP(child, stallguard_threshold_velocity), \
|
||||
.sg_velocity_check_interval_ms = DT_PROP(child, \
|
||||
stallguard_velocity_check_interval_ms), \
|
||||
.is_sg_enabled = DT_PROP(child, activate_stallguard2), \
|
||||
IF_ENABLED(CONFIG_STEPPER_ADI_TMC_RAMP_GEN, \
|
||||
(.default_ramp_config = TMC_RAMP_DT_SPEC_GET(child))) };
|
||||
|
||||
#define TMC5041_STEPPER_DATA_DEFINE(child) \
|
||||
static struct tmc5041_stepper_data tmc5041_stepper_data_##child = { \
|
||||
.stepper = DEVICE_DT_GET(child),};
|
||||
|
||||
#define TMC5041_STEPPER_API_DEFINE(child) \
|
||||
static const struct stepper_driver_api tmc5041_stepper_api_##child = { \
|
||||
.enable = tmc5041_stepper_enable, \
|
||||
.is_moving = tmc5041_stepper_is_moving, \
|
||||
.move = tmc5041_stepper_move, \
|
||||
.set_max_velocity = tmc5041_stepper_set_max_velocity, \
|
||||
.set_micro_step_res = tmc5041_stepper_set_micro_step_res, \
|
||||
.get_micro_step_res = tmc5041_stepper_get_micro_step_res, \
|
||||
.set_actual_position = tmc5041_stepper_set_actual_position, \
|
||||
.get_actual_position = tmc5041_stepper_get_actual_position, \
|
||||
.set_target_position = tmc5041_stepper_set_target_position, \
|
||||
.enable_constant_velocity_mode = tmc5041_stepper_enable_constant_velocity_mode, \
|
||||
};
|
||||
|
||||
#define TMC5041_STEPPER_DEFINE(child) \
|
||||
DEVICE_DT_DEFINE(child, tmc5041_stepper_init, NULL, &tmc5041_stepper_data_##child, \
|
||||
&tmc5041_stepper_config_##child, POST_KERNEL, \
|
||||
CONFIG_STEPPER_INIT_PRIORITY, &tmc5041_stepper_api_##child);
|
||||
|
||||
#define TMC5041_DEFINE(inst) \
|
||||
BUILD_ASSERT(DT_INST_CHILD_NUM(inst) <= 2, "tmc5041 can drive two steppers at max"); \
|
||||
BUILD_ASSERT((DT_INST_PROP(inst, clock_frequency) > 0), \
|
||||
"clock frequency must be non-zero positive value"); \
|
||||
static struct tmc5041_data tmc5041_data_##inst; \
|
||||
static const struct tmc5041_config tmc5041_config_##inst = { \
|
||||
.gconf = ( \
|
||||
(DT_INST_PROP(inst, poscmp_enable) << TMC5041_GCONF_POSCMP_ENABLE_SHIFT) |\
|
||||
(DT_INST_PROP(inst, test_mode) << TMC5041_GCONF_TEST_MODE_SHIFT) | \
|
||||
DT_INST_FOREACH_CHILD(inst, TMC5041_SHAFT_CONFIG) \
|
||||
(DT_INST_PROP(inst, lock_gconf) << TMC5041_LOCK_GCONF_SHIFT)), \
|
||||
.spi = SPI_DT_SPEC_INST_GET(inst, (SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | \
|
||||
SPI_MODE_CPOL | SPI_MODE_CPHA | SPI_WORD_SET(8)), 0), \
|
||||
.clock_frequency = DT_INST_PROP(inst, clock_frequency),}; \
|
||||
DT_INST_FOREACH_CHILD(inst, TMC5041_STEPPER_CONFIG_DEFINE); \
|
||||
DT_INST_FOREACH_CHILD(inst, TMC5041_STEPPER_DATA_DEFINE); \
|
||||
DT_INST_FOREACH_CHILD(inst, TMC5041_STEPPER_API_DEFINE); \
|
||||
DT_INST_FOREACH_CHILD(inst, TMC5041_STEPPER_DEFINE); \
|
||||
DEVICE_DT_INST_DEFINE(inst, tmc5041_init, NULL, &tmc5041_data_##inst, \
|
||||
&tmc5041_config_##inst, POST_KERNEL, CONFIG_STEPPER_INIT_PRIORITY,\
|
||||
NULL);
|
||||
|
||||
DT_INST_FOREACH_STATUS_OKAY(TMC5041_DEFINE)
|
Loading…
Add table
Add a link
Reference in a new issue