dfu_smp.h

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/*
 * Copyright (c) 2019 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef BT_DFU_SMP_H_
#define BT_DFU_SMP_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdbool.h>
#include <zephyr/bluetooth/gatt.h>
#include <zephyr/bluetooth/conn.h>
#include <bluetooth/gatt_dm.h>
 
 
#define BT_UUID_DFU_SMP_SERVICE_VAL \
        BT_UUID_128_ENCODE(0x8D53DC1D, 0x1DB7, 0x4CD3, 0x868B, 0x8A527460AA84)
 
#define BT_UUID_DFU_SMP_SERVICE BT_UUID_DECLARE_128(BT_UUID_DFU_SMP_SERVICE_VAL)
 
#define BT_UUID_DFU_SMP_CHAR_VAL \
        BT_UUID_128_ENCODE(0xDA2E7828, 0xFBCE, 0x4E01, 0xAE9E, 0x261174997C48)
 
 
#define BT_UUID_DFU_SMP_CHAR BT_UUID_DECLARE_128(BT_UUID_DFU_SMP_CHAR_VAL)
 
/* Forward declaration required for function handlers. */
struct bt_dfu_smp;
 
struct bt_dfu_smp_header {
        uint8_t op;
        uint8_t flags;
        uint8_t len_h8;
        uint8_t len_l8;
        uint8_t group_h8;
        uint8_t group_l8;
        uint8_t seq;
        uint8_t id;
};
 
struct bt_dfu_smp_rsp_state {
        size_t total_size;
        size_t offset;
        size_t chunk_size;
        const uint8_t *data;
};
 
typedef void (*bt_dfu_smp_rsp_part_cb)(struct bt_dfu_smp *dfu_smp);
 
typedef void (*bt_dfu_smp_error_cb)(struct bt_dfu_smp *dfu_smp,
                                         int err);
 
struct bt_dfu_smp_init_params {
        bt_dfu_smp_error_cb error_cb;
};
 
struct bt_dfu_smp {
        struct bt_conn *conn;
        struct bt_dfu_smp_handles {
                uint16_t smp;
                uint16_t smp_ccc;
        } handles;
        struct bt_dfu_smp_rsp_state rsp_state;
        struct bt_dfu_smp_cbs {
                bt_dfu_smp_error_cb error_cb;
                bt_dfu_smp_rsp_part_cb rsp_part;
        } cbs;
        struct bt_gatt_subscribe_params notification_params;
};
 
int bt_dfu_smp_init(struct bt_dfu_smp *dfu_smp,
                    const struct bt_dfu_smp_init_params *params);
 
int bt_dfu_smp_handles_assign(struct bt_gatt_dm *dm,
                              struct bt_dfu_smp *dfu_smp);
 
int bt_dfu_smp_command(struct bt_dfu_smp *dfu_smp,
                       bt_dfu_smp_rsp_part_cb rsp_cb,
                       size_t cmd_size, const void *cmd_data);
 
struct bt_conn *bt_dfu_smp_conn(const struct bt_dfu_smp *dfu_smp);
 
const struct bt_dfu_smp_rsp_state *bt_dfu_smp_rsp_state(
        const struct bt_dfu_smp *dfu_smp);
 
bool bt_dfu_smp_rsp_total_check(const struct bt_dfu_smp *dfu_smp);
 
 
#ifdef __cplusplus
}
#endif
 
#endif /* BT_DFU_SMP_H_ */