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Bluetooth: Add simple advertising enabling API

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This patch adds a simple API for enabling advertising and specifying
the friendly name in the advertising data. The API is probably not a
final one but fulfills the initial need to create apps that are able
to act in the LE peripheral role.

Change-Id: I3ff7e72ece377d872ef1b0e4ad44aeb293cc13e5
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Johan Hedberg 2015-04-17 13:59:34 +03:00 • committed by Anas Nashif
commit a6fbfe4bc1
2 changed files with 75 additions and 0 deletions
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3
include/bluetooth/bluetooth.h
View file

@ -131,4 +131,7 @@ int bt_driver_register(struct bt_driver *drv);
/* Unregister a previously registered HCI driver */
void bt_driver_unregister(struct bt_driver *drv);
/* Advertising testing API */
int bt_start_advertising(uint8_t type, const char *name, uint8_t name_len);
#endif /* __BT_BLUETOOTH_H */

72
net/bluetooth/hci_core.c
View file

@ -70,6 +70,9 @@ static struct bt_dev {
/* LE features */
uint8_t le_features[8];
/* Advertising state */
uint8_t adv_enable;
/* Controller buffer information */
uint16_t le_mtu;
uint8_t le_pkts;
@ -642,3 +645,72 @@ int bt_init(void)
return hci_init();
}
int bt_start_advertising(uint8_t type, const char *name, uint8_t name_len)
{
struct bt_buf *buf;
struct bt_hci_cp_le_set_adv_data *set_data;
struct bt_hci_cp_le_set_adv_data *scan_rsp;
struct bt_hci_cp_le_set_adv_parameters *set_param;
/* We don't support shortening of names, for now */
if (name_len > 29)
return -EINVAL;
buf = bt_hci_cmd_create(BT_HCI_OP_LE_SET_ADV_DATA, sizeof(*set_data));
if (!buf)
return -ENOBUFS;
set_data = (void *)bt_buf_add(buf, sizeof(*set_data));
memset(set_data, 0, sizeof(*set_data));
/* Advertising flags */
set_data->data[0] = 0x02; /* Length */
set_data->data[1] = BT_EIR_FLAGS;
set_data->data[2] = BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR;
set_data->len = 3;
bt_hci_cmd_send(BT_HCI_OP_LE_SET_ADV_DATA, buf);
buf = bt_hci_cmd_create(BT_HCI_OP_LE_SET_SCAN_RSP_DATA,
sizeof(*scan_rsp));
if (!buf)
return -ENOBUFS;
scan_rsp = (void *)bt_buf_add(buf, sizeof(*scan_rsp));
memset(scan_rsp, 0, sizeof(*scan_rsp));
/* Friendly name */
scan_rsp->data[0] = name_len + 1;
scan_rsp->data[1] = BT_EIR_NAME_COMPLETE;
memcpy(scan_rsp->data + 2, name, name_len);
scan_rsp->len = name_len + 2;
bt_hci_cmd_send(BT_HCI_OP_LE_SET_SCAN_RSP_DATA, buf);
buf = bt_hci_cmd_create(BT_HCI_OP_LE_SET_ADV_PARAMETERS,
sizeof(*set_param));
if (!buf)
return -ENOBUFS;
set_param = (void *)bt_buf_add(buf, sizeof(*set_param));
memset(set_param, 0, sizeof(*set_param));
set_param->min_interval = sys_cpu_to_le16(0x0800);
set_param->max_interval = sys_cpu_to_le16(0x0800);
set_param->type = type;
set_param->channel_map = 0x07;
bt_hci_cmd_send(BT_HCI_OP_LE_SET_ADV_PARAMETERS, buf);
buf = bt_hci_cmd_create(BT_HCI_OP_LE_SET_ADV_ENABLE, 1);
if (!buf)
return -ENOBUFS;
dev.adv_enable = 0x01;
memcpy(bt_buf_add(buf, 1), &dev.adv_enable, 1);
return bt_hci_cmd_send_sync(BT_HCI_OP_LE_SET_ADV_ENABLE, buf);
}