usbh.h

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/*
 * Copyright (c) 2022 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_USBH_H_
#define ZEPHYR_INCLUDE_USBH_H_
 
#include <stdint.h>
#include <zephyr/device.h>
#include <zephyr/net_buf.h>
#include <zephyr/sys/dlist.h>
#include <zephyr/sys/bitarray.h>
#include <zephyr/drivers/usb/uhc.h>
#include <zephyr/sys/iterable_sections.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct usbh_contex {
        const char *name;
        struct k_mutex mutex;
        const struct device *dev;
        sys_dlist_t udevs;
        struct usb_device *root;
        struct sys_bitarray *addr_ba;
};
 
#define USBH_CONTROLLER_DEFINE(device_name, uhc_dev)                    \
        SYS_BITARRAY_DEFINE_STATIC(ba_##device_name, 128);              \
        static STRUCT_SECTION_ITERABLE(usbh_contex, device_name) = {    \
                .name = STRINGIFY(device_name),                         \
                .mutex = Z_MUTEX_INITIALIZER(device_name.mutex),        \
                .dev = uhc_dev,                                         \
                .addr_ba = &ba_##device_name,                           \
        }
 
struct usbh_code_triple {
        uint8_t dclass;
        uint8_t sub;
        uint8_t proto;
};
 
struct usbh_class_data {
        struct usbh_code_triple code;
 
        /* int (*init)(struct usbh_contex *const uhs_ctx); */
        int (*request)(struct usbh_contex *const uhs_ctx,
                        struct uhc_transfer *const xfer, int err);
        int (*connected)(struct usbh_contex *const uhs_ctx);
        int (*removed)(struct usbh_contex *const uhs_ctx);
        int (*rwup)(struct usbh_contex *const uhs_ctx);
        int (*suspended)(struct usbh_contex *const uhs_ctx);
        int (*resumed)(struct usbh_contex *const uhs_ctx);
};
 
#define USBH_DEFINE_CLASS(name) \
        static STRUCT_SECTION_ITERABLE(usbh_class_data, name)
 
 
int usbh_init(struct usbh_contex *uhs_ctx);
 
int usbh_enable(struct usbh_contex *uhs_ctx);
 
int usbh_disable(struct usbh_contex *uhs_ctx);
 
int usbh_shutdown(struct usbh_contex *const uhs_ctx);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_USBH_H_ */