diff options
Diffstat (limited to 'app/drivers/zephyr/ec11.c')
| -rw-r--r-- | app/drivers/zephyr/ec11.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/app/drivers/zephyr/ec11.c b/app/drivers/zephyr/ec11.c deleted file mode 100644 index 00d0090..0000000 --- a/app/drivers/zephyr/ec11.c +++ /dev/null @@ -1,148 +0,0 @@ -/* - * Copyright (c) 2020 The ZMK Contributors - * - * SPDX-License-Identifier: MIT - */ - -#define DT_DRV_COMPAT alps_ec11 - -#include <device.h> -#include <drivers/gpio.h> -#include <sys/util.h> -#include <kernel.h> -#include <drivers/sensor.h> -#include <sys/__assert.h> -#include <logging/log.h> - -#include "ec11.h" - -LOG_MODULE_REGISTER(EC11, CONFIG_SENSOR_LOG_LEVEL); - -static int ec11_get_ab_state(struct device *dev) { - struct ec11_data *drv_data = dev->driver_data; - const struct ec11_config *drv_cfg = dev->config_info; - - return (gpio_pin_get(drv_data->a, drv_cfg->a_pin) << 1) | - gpio_pin_get(drv_data->b, drv_cfg->b_pin); -} - -static int ec11_sample_fetch(struct device *dev, enum sensor_channel chan) { - struct ec11_data *drv_data = dev->driver_data; - const struct ec11_config *drv_cfg = dev->config_info; - u8_t val; - s8_t delta; - - __ASSERT_NO_MSG(chan == SENSOR_CHAN_ALL || chan == SENSOR_CHAN_ROTATION); - - val = ec11_get_ab_state(dev); - - LOG_DBG("prev: %d, new: %d", drv_data->ab_state, val); - - switch (val | (drv_data->ab_state << 2)) { - case 0b0010: - case 0b0100: - case 0b1101: - case 0b1011: - delta = -1; - break; - case 0b0001: - case 0b0111: - case 0b1110: - case 0b1000: - delta = 1; - break; - default: - delta = 0; - break; - } - - LOG_DBG("Delta: %d", delta); - - drv_data->pulses += delta; - drv_data->ab_state = val; - - drv_data->ticks = drv_data->pulses / drv_cfg->resolution; - drv_data->delta = delta; - drv_data->pulses %= drv_cfg->resolution; - - return 0; -} - -static int ec11_channel_get(struct device *dev, enum sensor_channel chan, - struct sensor_value *val) { - struct ec11_data *drv_data = dev->driver_data; - - if (chan != SENSOR_CHAN_ROTATION) { - return -ENOTSUP; - } - - val->val1 = drv_data->ticks; - val->val2 = drv_data->delta; - - return 0; -} - -static const struct sensor_driver_api ec11_driver_api = { -#ifdef CONFIG_EC11_TRIGGER - .trigger_set = ec11_trigger_set, -#endif - .sample_fetch = ec11_sample_fetch, - .channel_get = ec11_channel_get, -}; - -int ec11_init(struct device *dev) { - struct ec11_data *drv_data = dev->driver_data; - const struct ec11_config *drv_cfg = dev->config_info; - - LOG_DBG("A: %s %d B: %s %d resolution %d", drv_cfg->a_label, drv_cfg->a_pin, drv_cfg->b_label, - drv_cfg->b_pin, drv_cfg->resolution); - - drv_data->a = device_get_binding(drv_cfg->a_label); - if (drv_data->a == NULL) { - LOG_ERR("Failed to get pointer to A GPIO device"); - return -EINVAL; - } - - drv_data->b = device_get_binding(drv_cfg->b_label); - if (drv_data->b == NULL) { - LOG_ERR("Failed to get pointer to B GPIO device"); - return -EINVAL; - } - - if (gpio_pin_configure(drv_data->a, drv_cfg->a_pin, drv_cfg->a_flags | GPIO_INPUT)) { - LOG_DBG("Failed to configure A pin"); - return -EIO; - } - - if (gpio_pin_configure(drv_data->b, drv_cfg->b_pin, drv_cfg->b_flags | GPIO_INPUT)) { - LOG_DBG("Failed to configure B pin"); - return -EIO; - } - -#ifdef CONFIG_EC11_TRIGGER - if (ec11_init_interrupt(dev) < 0) { - LOG_DBG("Failed to initialize interrupt!"); - return -EIO; - } -#endif - - drv_data->ab_state = ec11_get_ab_state(dev); - - return 0; -} - -#define EC11_INST(n) \ - struct ec11_data ec11_data_##n; \ - const struct ec11_config ec11_cfg_##n = { \ - .a_label = DT_INST_GPIO_LABEL(n, a_gpios), \ - .a_pin = DT_INST_GPIO_PIN(n, a_gpios), \ - .a_flags = DT_INST_GPIO_FLAGS(n, a_gpios), \ - .b_label = DT_INST_GPIO_LABEL(n, b_gpios), \ - .b_pin = DT_INST_GPIO_PIN(n, b_gpios), \ - .b_flags = DT_INST_GPIO_FLAGS(n, b_gpios), \ - COND_CODE_0(DT_INST_NODE_HAS_PROP(n, resolution), (1), (DT_INST_PROP(n, resolution))), \ - }; \ - DEVICE_AND_API_INIT(ec11_##n, DT_INST_LABEL(n), ec11_init, &ec11_data_##n, &ec11_cfg_##n, \ - POST_KERNEL, CONFIG_SENSOR_INIT_PRIORITY, &ec11_driver_api); - -DT_INST_FOREACH_STATUS_OKAY(EC11_INST)
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