79e6b0e0f6
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>. This patch proposes to then include <zephyr/kernel.h> instead of <zephyr/zephyr.h> since it is more clear that you are including the Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a catch-all header that may be confusing. Most applications need to include a bunch of other things to compile, e.g. driver headers or subsystem headers like BT, logging, etc. The idea of a catch-all header in Zephyr is probably not feasible anyway. Reason is that Zephyr is not a library, like it could be for example `libpython`. Zephyr provides many utilities nowadays: a kernel, drivers, subsystems, etc and things will likely grow. A catch-all header would be massive, difficult to keep up-to-date. It is also likely that an application will only build a small subset. Note that subsystem-level headers may use a catch-all approach to make things easier, though. NOTE: This patch is **NOT** removing the header, just removing its usage in-tree. I'd advocate for its deprecation (add a #warning on it), but I understand many people will have concerns. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/** @file
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* @brief CTS Service sample
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/types.h>
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#include <stddef.h>
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#include <string.h>
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#include <errno.h>
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#include <zephyr/sys/printk.h>
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#include <zephyr/sys/byteorder.h>
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#include <zephyr/kernel.h>
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#include <zephyr/bluetooth/bluetooth.h>
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#include <zephyr/bluetooth/hci.h>
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#include <zephyr/bluetooth/conn.h>
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#include <zephyr/bluetooth/uuid.h>
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#include <zephyr/bluetooth/gatt.h>
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static uint8_t ct[10];
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static uint8_t ct_update;
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static void ct_ccc_cfg_changed(const struct bt_gatt_attr *attr, uint16_t value)
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{
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/* TODO: Handle value */
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}
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static ssize_t read_ct(struct bt_conn *conn, const struct bt_gatt_attr *attr,
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void *buf, uint16_t len, uint16_t offset)
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{
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const char *value = attr->user_data;
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return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
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sizeof(ct));
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}
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static ssize_t write_ct(struct bt_conn *conn, const struct bt_gatt_attr *attr,
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const void *buf, uint16_t len, uint16_t offset,
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uint8_t flags)
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{
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uint8_t *value = attr->user_data;
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if (offset + len > sizeof(ct)) {
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return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
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}
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memcpy(value + offset, buf, len);
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ct_update = 1U;
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return len;
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}
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/* Current Time Service Declaration */
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BT_GATT_SERVICE_DEFINE(cts_cvs,
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BT_GATT_PRIMARY_SERVICE(BT_UUID_CTS),
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BT_GATT_CHARACTERISTIC(BT_UUID_CTS_CURRENT_TIME, BT_GATT_CHRC_READ |
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BT_GATT_CHRC_NOTIFY | BT_GATT_CHRC_WRITE,
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BT_GATT_PERM_READ | BT_GATT_PERM_WRITE,
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read_ct, write_ct, ct),
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BT_GATT_CCC(ct_ccc_cfg_changed, BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
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);
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static void generate_current_time(uint8_t *buf)
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{
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uint16_t year;
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/* 'Exact Time 256' contains 'Day Date Time' which contains
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* 'Date Time' - characteristic contains fields for:
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* year, month, day, hours, minutes and seconds.
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*/
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year = sys_cpu_to_le16(2015);
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memcpy(buf, &year, 2); /* year */
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buf[2] = 5U; /* months starting from 1 */
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buf[3] = 30U; /* day */
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buf[4] = 12U; /* hours */
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buf[5] = 45U; /* minutes */
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buf[6] = 30U; /* seconds */
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/* 'Day of Week' part of 'Day Date Time' */
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buf[7] = 1U; /* day of week starting from 1 */
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/* 'Fractions 256 part of 'Exact Time 256' */
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buf[8] = 0U;
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/* Adjust reason */
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buf[9] = 0U; /* No update, change, etc */
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}
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void cts_init(void)
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{
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/* Simulate current time for Current Time Service */
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generate_current_time(ct);
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}
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void cts_notify(void)
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{ /* Current Time Service updates only when time is changed */
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if (!ct_update) {
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return;
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}
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ct_update = 0U;
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bt_gatt_notify(NULL, &cts_cvs.attrs[1], &ct, sizeof(ct));
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}
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