104 lines
1.8 KiB
C
104 lines
1.8 KiB
C
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/*
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* Copyright (c) 2022 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <zephyr/sys/util.h>
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#include "usbh_internal.h"
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(uhs_api, CONFIG_USBH_LOG_LEVEL);
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int usbh_init(struct usbh_contex *uhs_ctx)
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{
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int ret;
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k_mutex_lock(&uhs_ctx->mutex, K_FOREVER);
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if (!device_is_ready(uhs_ctx->dev)) {
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LOG_ERR("USB host controller is not ready");
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ret = -ENODEV;
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goto init_exit;
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}
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if (uhc_is_initialized(uhs_ctx->dev)) {
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LOG_WRN("USB host controller is already initialized");
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ret = -EALREADY;
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goto init_exit;
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}
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ret = usbh_init_device_intl(uhs_ctx);
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init_exit:
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k_mutex_unlock(&uhs_ctx->mutex);
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return ret;
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}
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int usbh_enable(struct usbh_contex *uhs_ctx)
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{
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int ret;
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k_mutex_lock(&uhs_ctx->mutex, K_FOREVER);
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if (!uhc_is_initialized(uhs_ctx->dev)) {
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LOG_WRN("USB host controller is not initialized");
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ret = -EPERM;
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goto enable_exit;
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}
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if (uhc_is_enabled(uhs_ctx->dev)) {
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LOG_WRN("USB host controller is already enabled");
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ret = -EALREADY;
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goto enable_exit;
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}
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ret = uhc_enable(uhs_ctx->dev);
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if (ret != 0) {
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LOG_ERR("Failed to enable controller");
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goto enable_exit;
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}
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enable_exit:
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k_mutex_unlock(&uhs_ctx->mutex);
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return ret;
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}
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int usbh_disable(struct usbh_contex *uhs_ctx)
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{
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int ret;
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if (!uhc_is_enabled(uhs_ctx->dev)) {
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LOG_WRN("USB host controller is already disabled");
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return 0;
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}
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k_mutex_lock(&uhs_ctx->mutex, K_FOREVER);
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ret = uhc_disable(uhs_ctx->dev);
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if (ret) {
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LOG_ERR("Failed to disable USB controller");
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}
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k_mutex_unlock(&uhs_ctx->mutex);
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return 0;
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}
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int usbh_shutdown(struct usbh_contex *const uhs_ctx)
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{
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int ret;
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k_mutex_lock(&uhs_ctx->mutex, K_FOREVER);
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ret = uhc_shutdown(uhs_ctx->dev);
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if (ret) {
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LOG_ERR("Failed to shutdown USB device");
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}
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k_mutex_unlock(&uhs_ctx->mutex);
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return ret;
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}
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