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btdev: Implement BT_HCI_CMD_LE_PERIODIC_ADV_CREATE_SYNC

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This adds implementation of BT_HCI_CMD_LE_PERIODIC_ADV_CREATE_SYNC
generating BT_HCI_EVT_LE_PER_SYNC_ESTABLISHED and
BT_HCI_EVT_LE_PER_ADV_REPORT.
This commit is contained in:
Luiz Augusto von Dentz 2022-03-04 17:22:19 -08:00
parent b5ab5eee3a
commit ea501af91c
1 changed files with 96 additions and 3 deletions
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99
emulator/btdev.c
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@ -47,6 +47,7 @@
#define ACL_HANDLE 42
#define ISO_HANDLE 257
#define SCO_HANDLE 257
#define SYC_HANDLE 1
struct hook {
btdev_hook_func handler;
@ -195,6 +196,7 @@ struct btdev {
uint16_t le_periodic_max_interval;
uint8_t le_periodic_data_len;
uint8_t le_periodic_data[31];
uint16_t le_periodic_sync_handle;
uint8_t le_ltk[16];
struct {
struct bt_hci_cmd_le_set_cig_params params;
@ -5294,8 +5296,99 @@ static int cmd_ext_create_conn_complete(struct btdev *dev, const void *data,
static int cmd_per_adv_create_sync(struct btdev *dev, const void *data,
uint8_t len)
{
/* TODO */
return -ENOTSUP;
uint8_t status = BT_HCI_ERR_SUCCESS;
if (dev->le_periodic_sync_handle)
status = BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
else
dev->le_periodic_sync_handle = SYC_HANDLE;
cmd_status(dev, status, BT_HCI_CMD_LE_PERIODIC_ADV_CREATE_SYNC);
return 0;
}
static void send_per_adv(struct btdev *dev, const struct btdev *remote,
uint8_t offset)
{
struct __packed {
struct bt_hci_le_per_adv_report ev;
uint8_t data[31];
} pdu;
memset(&pdu.ev, 0, sizeof(pdu.ev));
pdu.ev.handle = cpu_to_le16(dev->le_periodic_sync_handle);
pdu.ev.tx_power = 127;
pdu.ev.rssi = 127;
pdu.ev.cte_type = 0x0ff;
if ((size_t) remote->le_periodic_data_len - offset > sizeof(pdu.data)) {
pdu.ev.data_status = 0x01;
pdu.ev.data_len = sizeof(pdu.data);
} else {
pdu.ev.data_status = 0x00;
pdu.ev.data_len = remote->le_periodic_data_len - offset;
}
memcpy(pdu.data, remote->le_periodic_data + offset, pdu.ev.data_len);
le_meta_event(dev, BT_HCI_EVT_LE_PER_ADV_REPORT, &pdu,
sizeof(pdu.ev) + pdu.ev.data_len);
if (pdu.ev.data_status == 0x01) {
offset += pdu.ev.data_len;
send_per_adv(dev, remote, offset);
}
}
static void le_per_adv_sync_estabilished(struct btdev *dev,
const struct bt_hci_cmd_le_periodic_adv_create_sync *cmd,
struct btdev *remote, uint8_t status)
{
struct bt_hci_evt_le_per_sync_established ev;
memset(&ev, 0, sizeof(ev));
ev.status = status;
if (status) {
le_meta_event(dev, BT_HCI_EVT_LE_PER_SYNC_ESTABLISHED, &ev,
sizeof(ev));
return;
}
ev.handle = cpu_to_le16(dev->le_periodic_sync_handle);
ev.addr_type = cmd->addr_type;
memcpy(ev.addr, cmd->addr, sizeof(ev.addr));
ev.phy = 0x01;
ev.interval = remote->le_periodic_min_interval;
ev.clock_accuracy = 0x07;
le_meta_event(dev, BT_HCI_EVT_LE_PER_SYNC_ESTABLISHED, &ev, sizeof(ev));
send_per_adv(dev, remote, 0);
}
static int cmd_per_adv_create_sync_complete(struct btdev *dev, const void *data,
uint8_t len)
{
const struct bt_hci_cmd_le_periodic_adv_create_sync *cmd = data;
struct btdev *remote;
/* This command may be issued whether or not scanning is enabled and
* scanning may be enabled and disabled (see the LE Set Extended Scan
* Enable command) while this command is pending. However,
* synchronization can only occur when scanning is enabled. While
* scanning is disabled, no attempt to synchronize will take place.
*/
if (!dev->scan_enable)
return 0;
remote = find_btdev_by_bdaddr_type(cmd->addr, cmd->addr_type);
if (!remote || !remote->le_periodic_adv_enable)
return 0;
le_per_adv_sync_estabilished(dev, cmd, remote, BT_HCI_ERR_SUCCESS);
return 0;
}
static int cmd_per_adv_create_sync_cancel(struct btdev *dev, const void *data,
@ -5420,7 +5513,7 @@ done:
CMD(BT_HCI_CMD_LE_EXT_CREATE_CONN, cmd_ext_create_conn, \
cmd_ext_create_conn_complete), \
CMD(BT_HCI_CMD_LE_PERIODIC_ADV_CREATE_SYNC, cmd_per_adv_create_sync, \
NULL), \
cmd_per_adv_create_sync_complete), \
CMD(BT_HCI_CMD_LE_PERIODIC_ADV_CREATE_SYNC_CANCEL, \
cmd_per_adv_create_sync_cancel, NULL), \
CMD(BT_HCI_CMD_LE_PERIODIC_ADV_TERM_SYNC, cmd_per_adv_term_sync, \