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100 lines
2.6 KiB
100 lines
2.6 KiB
/* |
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* Copyright (c) 2023 Nordic Semiconductor ASA |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#define DT_DRV_COMPAT nordic_npm1300_led |
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#include <errno.h> |
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#include <zephyr/device.h> |
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#include <zephyr/drivers/led.h> |
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#include <zephyr/drivers/mfd/npm13xx.h> |
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/* nPM13xx LED base address */ |
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#define NPM_LED_BASE 0x0AU |
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/* nPM13xx LED register offsets */ |
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#define NPM_LED_OFFSET_MODE 0x00U |
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#define NPM_LED_OFFSET_SET 0x03U |
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#define NPM_LED_OFFSET_CLR 0x04U |
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/* nPM13xx Channel counts */ |
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#define NPM13XX_LED_PINS 3U |
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/* nPM13xx LED modes */ |
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#define NPM_LED_HOST 2U |
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struct led_npm13xx_config { |
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const struct device *mfd; |
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uint8_t mode[NPM13XX_LED_PINS]; |
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}; |
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static int led_npm13xx_on(const struct device *dev, uint32_t led) |
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{ |
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const struct led_npm13xx_config *config = dev->config; |
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if (led >= NPM13XX_LED_PINS) { |
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return -EINVAL; |
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} |
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if (config->mode[led] != NPM_LED_HOST) { |
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return -EPERM; |
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} |
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return mfd_npm13xx_reg_write(config->mfd, NPM_LED_BASE, NPM_LED_OFFSET_SET + (led * 2U), |
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1U); |
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} |
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static int led_npm13xx_off(const struct device *dev, uint32_t led) |
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{ |
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const struct led_npm13xx_config *config = dev->config; |
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if (led >= NPM13XX_LED_PINS) { |
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return -EINVAL; |
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} |
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if (config->mode[led] != NPM_LED_HOST) { |
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return -EPERM; |
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} |
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return mfd_npm13xx_reg_write(config->mfd, NPM_LED_BASE, NPM_LED_OFFSET_CLR + (led * 2U), |
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1U); |
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} |
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static DEVICE_API(led, led_npm13xx_api) = { |
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.on = led_npm13xx_on, |
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.off = led_npm13xx_off, |
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}; |
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static int led_npm13xx_init(const struct device *dev) |
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{ |
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const struct led_npm13xx_config *config = dev->config; |
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if (!device_is_ready(config->mfd)) { |
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return -ENODEV; |
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} |
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for (uint8_t led = 0U; led < NPM13XX_LED_PINS; led++) { |
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int ret = mfd_npm13xx_reg_write(config->mfd, NPM_LED_BASE, |
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NPM_LED_OFFSET_MODE + led, config->mode[led]); |
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if (ret < 0) { |
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return ret; |
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} |
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} |
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return 0; |
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} |
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#define LED_NPM13XX_DEFINE(n) \ |
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static const struct led_npm13xx_config led_npm13xx_config##n = { \ |
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.mfd = DEVICE_DT_GET(DT_INST_PARENT(n)), \ |
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.mode = {DT_INST_ENUM_IDX(n, nordic_led0_mode), \ |
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DT_INST_ENUM_IDX(n, nordic_led1_mode), \ |
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DT_INST_ENUM_IDX(n, nordic_led2_mode)}}; \ |
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\ |
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DEVICE_DT_INST_DEFINE(n, &led_npm13xx_init, NULL, NULL, &led_npm13xx_config##n, \ |
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POST_KERNEL, CONFIG_LED_INIT_PRIORITY, &led_npm13xx_api); |
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DT_INST_FOREACH_STATUS_OKAY(LED_NPM13XX_DEFINE)
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