This adds support for synchronizing to multiple PA trains.
---
emulator/btdev.c | 131 ++++++++++++++++++++++++++++++++++++-----------
1 file changed, 100 insertions(+), 31 deletions(-)
diff --git a/emulator/btdev.c b/emulator/btdev.c
index 5752a2fb0..3b0a267d1 100644
--- a/emulator/btdev.c
+++ b/emulator/btdev.c
@@ -52,7 +52,7 @@
#define ACL_HANDLE 42
#define ISO_HANDLE 257
#define SCO_HANDLE 257
-#define SYC_HANDLE 1
+#define SYNC_HANDLE 1
#define INV_HANDLE 0xffff
struct hook {
@@ -105,6 +105,13 @@ struct le_ext_adv {
unsigned int id;
};
+struct le_per_adv {
+ struct btdev *dev;
+ uint8_t addr_type;
+ uint8_t addr[6];
+ uint16_t sync_handle;
+};
+
struct le_cig {
struct bt_hci_cmd_le_set_cig_params params;
struct bt_hci_cis_params cis[CIS_SIZE];
@@ -212,8 +219,6 @@ struct btdev {
uint16_t le_pa_max_interval;
uint8_t le_pa_data_len;
uint8_t le_pa_data[MAX_PA_DATA_LEN];
- struct bt_hci_cmd_le_pa_create_sync pa_sync_cmd;
- uint16_t le_pa_sync_handle;
uint8_t big_handle;
uint8_t le_ltk[16];
struct le_cig le_cig[CIG_SIZE];
@@ -239,6 +244,7 @@ struct btdev {
uint16_t le_ext_adv_type;
struct queue *le_ext_adv;
+ struct queue *le_per_adv;
btdev_debug_func_t debug_callback;
btdev_destroy_func_t debug_destroy;
@@ -578,7 +584,6 @@ static void btdev_reset(struct btdev *btdev)
btdev->le_scan_enable = 0x00;
btdev->le_adv_enable = 0x00;
btdev->le_pa_enable = 0x00;
- btdev->le_pa_sync_handle = 0x0000;
btdev->big_handle = 0xff;
al_clear(btdev);
@@ -589,6 +594,7 @@ static void btdev_reset(struct btdev *btdev)
queue_remove_all(btdev->conns, NULL, NULL, conn_remove);
queue_remove_all(btdev->le_ext_adv, NULL, NULL, le_ext_adv_free);
+ queue_remove_all(btdev->le_per_adv, NULL, NULL, free);
}
static int cmd_reset(struct btdev *dev, const void *data, uint8_t len)
@@ -5246,7 +5252,8 @@ static int cmd_set_pa_data(struct btdev *dev, const void *data,
return 0;
}
-static void send_biginfo(struct btdev *dev, const struct btdev *remote)
+static void send_biginfo(struct btdev *dev, const struct btdev *remote,
+ uint16_t sync_handle)
{
struct bt_hci_evt_le_big_info_adv_report ev;
const struct btdev_conn *conn;
@@ -5259,7 +5266,7 @@ static void send_biginfo(struct btdev *dev, const struct btdev *remote)
bis = conn->data;
memset(&ev, 0, sizeof(ev));
- ev.sync_handle = cpu_to_le16(dev->le_pa_sync_handle);
+ ev.sync_handle = cpu_to_le16(sync_handle);
ev.num_bis = 1;
while (find_bis_index(remote, ev.num_bis))
@@ -5281,7 +5288,7 @@ static void send_biginfo(struct btdev *dev, const struct btdev *remote)
}
static void send_pa(struct btdev *dev, const struct btdev *remote,
- uint8_t offset)
+ uint8_t offset, uint16_t sync_handle)
{
struct __packed {
struct bt_hci_le_pa_report ev;
@@ -5289,7 +5296,7 @@ static void send_pa(struct btdev *dev, const struct btdev *remote,
} pdu;
memset(&pdu.ev, 0, sizeof(pdu.ev));
- pdu.ev.handle = cpu_to_le16(dev->le_pa_sync_handle);
+ pdu.ev.handle = cpu_to_le16(sync_handle);
pdu.ev.tx_power = 127;
pdu.ev.rssi = 127;
pdu.ev.cte_type = 0x0ff;
@@ -5309,41 +5316,67 @@ static void send_pa(struct btdev *dev, const struct btdev *remote,
if (pdu.ev.data_status == 0x01) {
offset += pdu.ev.data_len;
- send_pa(dev, remote, offset);
+ send_pa(dev, remote, offset, sync_handle);
return;
}
- send_biginfo(dev, remote);
+ send_biginfo(dev, remote, sync_handle);
+}
+
+static bool match_sync_handle(const void *data, const void *match_data)
+{
+ const struct le_per_adv *per_adv = data;
+ uint16_t sync_handle = PTR_TO_UINT(match_data);
+
+ return per_adv->sync_handle == sync_handle;
+}
+
+static bool match_dev(const void *data, const void *match_data)
+{
+ const struct le_per_adv *per_adv = data;
+ const struct btdev *dev = match_data;
+
+ return dev == find_btdev_by_bdaddr_type(per_adv->addr,
+ per_adv->addr_type);
}
static void le_pa_sync_estabilished(struct btdev *dev, struct btdev *remote,
uint8_t status)
{
struct bt_hci_evt_le_per_sync_established ev;
- struct bt_hci_cmd_le_pa_create_sync *cmd = &dev->pa_sync_cmd;
+ struct le_per_adv *per_adv;
+ uint16_t sync_handle = SYNC_HANDLE;
+
+ per_adv = queue_find(dev->le_per_adv, match_dev, remote);
+ if (!per_adv)
+ return;
memset(&ev, 0, sizeof(ev));
ev.status = status;
if (status) {
- memset(&dev->pa_sync_cmd, 0, sizeof(dev->pa_sync_cmd));
- dev->le_pa_sync_handle = 0x0000;
+ queue_remove(dev->le_per_adv, per_adv);
+ free(per_adv);
le_meta_event(dev, BT_HCI_EVT_LE_PA_SYNC_ESTABLISHED, &ev,
sizeof(ev));
return;
}
- dev->le_pa_sync_handle = SYC_HANDLE;
+ while (queue_find(dev->le_per_adv, match_sync_handle,
+ UINT_TO_PTR(sync_handle)))
+ sync_handle++;
+
+ per_adv->sync_handle = sync_handle;
- ev.handle = cpu_to_le16(dev->le_pa_sync_handle);
- ev.addr_type = cmd->addr_type;
- memcpy(ev.addr, cmd->addr, sizeof(ev.addr));
+ ev.handle = cpu_to_le16(per_adv->sync_handle);
+ ev.addr_type = per_adv->addr_type;
+ memcpy(ev.addr, per_adv->addr, sizeof(ev.addr));
ev.phy = 0x01;
ev.interval = remote->le_pa_min_interval;
ev.clock_accuracy = 0x07;
le_meta_event(dev, BT_HCI_EVT_LE_PA_SYNC_ESTABLISHED, &ev, sizeof(ev));
- send_pa(dev, remote, 0);
+ send_pa(dev, remote, 0, per_adv->sync_handle);
}
static int cmd_set_pa_enable(struct btdev *dev, const void *data, uint8_t len)
@@ -5369,7 +5402,8 @@ static int cmd_set_pa_enable(struct btdev *dev, const void *data, uint8_t len)
continue;
if (remote->le_scan_enable &&
- remote->le_pa_sync_handle == INV_HANDLE)
+ queue_find(remote->le_per_adv, match_sync_handle,
+ UINT_TO_PTR(INV_HANDLE)))
le_pa_sync_estabilished(remote, dev,
BT_HCI_ERR_SUCCESS);
}
@@ -5477,11 +5511,14 @@ static void scan_ext_adv(struct btdev *dev, struct btdev *remote)
static void scan_pa(struct btdev *dev, struct btdev *remote)
{
- if (dev->le_pa_sync_handle != INV_HANDLE || !remote->le_pa_enable)
+ struct le_per_adv *per_adv = queue_find(dev->le_per_adv,
+ match_sync_handle, UINT_TO_PTR(INV_HANDLE));
+
+ if (!per_adv || !remote->le_pa_enable)
return;
- if (remote != find_btdev_by_bdaddr_type(dev->pa_sync_cmd.addr,
- dev->pa_sync_cmd.addr_type))
+ if (remote != find_btdev_by_bdaddr_type(per_adv->addr,
+ per_adv->addr_type))
return;
le_pa_sync_estabilished(dev, remote, BT_HCI_ERR_SUCCESS);
@@ -5622,16 +5659,37 @@ static int cmd_ext_create_conn_complete(struct btdev *dev, const void *data,
return 0;
}
+static struct le_per_adv *le_per_adv_new(struct btdev *btdev,
+ uint8_t addr_type, const uint8_t *addr)
+{
+ struct le_per_adv *per_adv;
+
+ per_adv = new0(struct le_per_adv, 1);
+
+ per_adv->dev = btdev;
+ per_adv->addr_type = addr_type;
+ memcpy(per_adv->addr, addr, 6);
+ per_adv->sync_handle = INV_HANDLE;
+
+ /* Add to queue */
+ if (!queue_push_tail(btdev->le_per_adv, per_adv)) {
+ free(per_adv);
+ return NULL;
+ }
+
+ return per_adv;
+}
+
static int cmd_pa_create_sync(struct btdev *dev, const void *data, uint8_t len)
{
+ const struct bt_hci_cmd_le_pa_create_sync *cmd = data;
uint8_t status = BT_HCI_ERR_SUCCESS;
+ struct le_per_adv *per_adv;
- if (dev->le_pa_sync_handle)
+ /* Create new train */
+ per_adv = le_per_adv_new(dev, cmd->addr_type, cmd->addr);
+ if (!per_adv)
status = BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
- else {
- dev->le_pa_sync_handle = INV_HANDLE;
- memcpy(&dev->pa_sync_cmd, data, len);
- }
cmd_status(dev, status, BT_HCI_CMD_LE_PA_CREATE_SYNC);
@@ -5671,7 +5729,8 @@ static int cmd_pa_create_sync_cancel(struct btdev *dev, const void *data,
* HCI_LE_Periodic_Advertising_Create_Sync command is pending, the
* Controller shall return the error code Command Disallowed (0x0C).
*/
- if (dev->le_pa_sync_handle != INV_HANDLE)
+ if (!queue_find(dev->le_per_adv, match_sync_handle,
+ UINT_TO_PTR(INV_HANDLE)))
status = BT_HCI_ERR_COMMAND_DISALLOWED;
cmd_complete(dev, BT_HCI_CMD_LE_PA_CREATE_SYNC_CANCEL,
@@ -5690,16 +5749,24 @@ static int cmd_pa_create_sync_cancel(struct btdev *dev, const void *data,
static int cmd_pa_term_sync(struct btdev *dev, const void *data, uint8_t len)
{
+ const struct bt_hci_cmd_le_pa_term_sync *cmd = data;
+ struct le_per_adv *per_adv;
+ uint16_t sync_handle = le16_to_cpu(cmd->sync_handle);
uint8_t status = BT_HCI_ERR_SUCCESS;
+ per_adv = queue_find(dev->le_per_adv, match_sync_handle,
+ UINT_TO_PTR(sync_handle));
+
/* If the periodic advertising train corresponding to the Sync_Handle
* parameter does not exist, then the Controller shall return the error
* code Unknown Advertising Identifier (0x42).
*/
- if (dev->le_pa_sync_handle != SYC_HANDLE)
+ if (!per_adv) {
status = BT_HCI_ERR_UNKNOWN_ADVERTISING_ID;
- else
- dev->le_pa_sync_handle = 0x0000;
+ } else {
+ queue_remove(dev->le_per_adv, per_adv);
+ free(per_adv);
+ }
cmd_complete(dev, BT_HCI_CMD_LE_PA_TERM_SYNC,
&status, sizeof(status));
@@ -7200,6 +7267,7 @@ struct btdev *btdev_create(enum btdev_type type, uint16_t id)
btdev->conns = queue_new();
btdev->le_ext_adv = queue_new();
+ btdev->le_per_adv = queue_new();
btdev->le_al_len = AL_SIZE;
btdev->le_rl_len = RL_SIZE;
@@ -7219,6 +7287,7 @@ void btdev_destroy(struct btdev *btdev)
queue_destroy(btdev->conns, conn_remove);
queue_destroy(btdev->le_ext_adv, le_ext_adv_free);
+ queue_destroy(btdev->le_per_adv, free);
free(btdev);
}
--
2.43.0
