mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-11-23 04:04:36 +08:00
btdev: Add support for syncing to multiple BIGs
This adds support for synchronizing to multiple BIGs.
This commit is contained in:
Iulia Tanasescu
Luiz Augusto von Dentz
parent
30951c983d
commit
fb09ce5cfd
@ -112,6 +112,12 @@ struct le_per_adv {
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uint16_t sync_handle;
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};
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struct le_big {
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struct btdev *dev;
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uint8_t handle;
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struct queue *bis;
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};
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struct le_cig {
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struct bt_hci_cmd_le_set_cig_params params;
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struct bt_hci_cis_params cis[CIS_SIZE];
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@ -219,7 +225,6 @@ struct btdev {
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uint16_t le_pa_max_interval;
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uint8_t le_pa_data_len;
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uint8_t le_pa_data[MAX_PA_DATA_LEN];
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uint8_t big_handle;
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uint8_t le_ltk[16];
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struct le_cig le_cig[CIG_SIZE];
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uint8_t le_iso_path[2];
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@ -245,6 +250,7 @@ struct btdev {
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struct queue *le_ext_adv;
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struct queue *le_per_adv;
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struct queue *le_big;
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btdev_debug_func_t debug_callback;
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btdev_destroy_func_t debug_destroy;
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@ -575,6 +581,15 @@ static void le_ext_adv_free(void *data)
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free(ext_adv);
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}
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static void le_big_free(void *data)
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{
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struct le_big *big = data;
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queue_destroy(big->bis, NULL);
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free(big);
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}
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static void btdev_reset(struct btdev *btdev)
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{
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/* FIXME: include here clearing of all states that should be
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@ -584,7 +599,6 @@ static void btdev_reset(struct btdev *btdev)
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btdev->le_scan_enable = 0x00;
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btdev->le_adv_enable = 0x00;
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btdev->le_pa_enable = 0x00;
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btdev->big_handle = 0xff;
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al_clear(btdev);
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rl_clear(btdev);
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@ -595,6 +609,7 @@ static void btdev_reset(struct btdev *btdev)
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queue_remove_all(btdev->conns, NULL, NULL, conn_remove);
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queue_remove_all(btdev->le_ext_adv, NULL, NULL, le_ext_adv_free);
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queue_remove_all(btdev->le_per_adv, NULL, NULL, free);
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queue_remove_all(btdev->le_big, NULL, NULL, le_big_free);
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}
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static int cmd_reset(struct btdev *dev, const void *data, uint8_t len)
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@ -5331,6 +5346,14 @@ static bool match_sync_handle(const void *data, const void *match_data)
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return per_adv->sync_handle == sync_handle;
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}
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static bool match_big_handle(const void *data, const void *match_data)
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{
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const struct le_big *big = data;
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uint8_t handle = PTR_TO_UINT(match_data);
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return big->handle == handle;
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}
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static bool match_dev(const void *data, const void *match_data)
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{
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const struct le_per_adv *per_adv = data;
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@ -6441,7 +6464,8 @@ static int cmd_big_create_sync(struct btdev *dev, const void *data, uint8_t len)
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* allocated, the Controller shall return the error code Command
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* Disallowed (0x0C).
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*/
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if (dev->big_handle == cmd->handle) {
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if (queue_find(dev->le_big, match_big_handle,
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UINT_TO_PTR(cmd->handle))) {
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status = BT_HCI_ERR_COMMAND_DISALLOWED;
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goto done;
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}
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@ -6459,6 +6483,25 @@ done:
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return 0;
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}
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static struct le_big *le_big_new(struct btdev *btdev, uint8_t handle)
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{
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struct le_big *big;
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big = new0(struct le_big, 1);
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big->dev = btdev;
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big->handle = handle;
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big->bis = queue_new();
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/* Add to queue */
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if (!queue_push_tail(btdev->le_big, big)) {
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le_big_free(big);
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return NULL;
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}
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return big;
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}
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static int cmd_big_create_sync_complete(struct btdev *dev, const void *data,
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uint8_t len)
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{
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@ -6474,6 +6517,7 @@ static int cmd_big_create_sync_complete(struct btdev *dev, const void *data,
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uint16_t sync_handle = le16_to_cpu(cmd->sync_handle);
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struct le_per_adv *per_adv = queue_find(dev->le_per_adv,
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match_sync_handle, UINT_TO_PTR(sync_handle));
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struct le_big *big;
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if (!per_adv)
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return 0;
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@ -6483,6 +6527,14 @@ static int cmd_big_create_sync_complete(struct btdev *dev, const void *data,
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if (!remote)
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return 0;
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big = le_big_new(dev, cmd->handle);
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if (!big) {
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pdu.ev.status = BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
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le_meta_event(dev, BT_HCI_EVT_LE_BIG_SYNC_ESTABILISHED, &pdu,
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sizeof(pdu.ev));
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return 0;
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}
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memset(&pdu.ev, 0, sizeof(pdu.ev));
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for (i = 0; i < cmd->num_bis; i++) {
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@ -6491,6 +6543,8 @@ static int cmd_big_create_sync_complete(struct btdev *dev, const void *data,
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break;
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pdu.bis[i] = cpu_to_le16(conn->handle);
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queue_push_tail(big->bis, conn);
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}
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if (i != cmd->num_bis || !conn) {
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@ -6500,7 +6554,6 @@ static int cmd_big_create_sync_complete(struct btdev *dev, const void *data,
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return 0;
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}
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dev->big_handle = cmd->handle;
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bis = conn->data;
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if (bis->encryption != cmd->encryption) {
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@ -6530,7 +6583,9 @@ static int cmd_big_term_sync(struct btdev *dev, const void *data, uint8_t len)
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{
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const struct bt_hci_cmd_le_big_term_sync *cmd = data;
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struct bt_hci_rsp_le_big_term_sync rsp;
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const struct queue_entry *entry;
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struct btdev_conn *conn;
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struct le_big *big = queue_find(dev->le_big, match_big_handle,
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UINT_TO_PTR(cmd->handle));
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memset(&rsp, 0, sizeof(rsp));
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@ -6538,7 +6593,7 @@ static int cmd_big_term_sync(struct btdev *dev, const void *data, uint8_t len)
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* exist, the Controller shall return the error code Unknown
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* Advertising Identifier (0x42).
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*/
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if (dev->big_handle != cmd->handle) {
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if (!big) {
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rsp.status = BT_HCI_ERR_UNKNOWN_ADVERTISING_ID;
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goto done;
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}
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@ -6547,24 +6602,16 @@ static int cmd_big_term_sync(struct btdev *dev, const void *data, uint8_t len)
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rsp.handle = cmd->handle;
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/* Cleanup existing connections */
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for (entry = queue_get_entries(dev->conns); entry;
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entry = entry->next) {
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struct btdev_conn *conn = entry->data;
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if (!conn->data)
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continue;
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while ((conn = queue_pop_head(big->bis))) {
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rsp.status = BT_HCI_ERR_SUCCESS;
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disconnect_complete(dev, conn->handle, BT_HCI_ERR_SUCCESS,
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0x16);
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conn_remove(conn);
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break;
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}
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done:
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if (rsp.status == BT_HCI_ERR_SUCCESS)
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dev->big_handle = 0xff;
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if (rsp.status == BT_HCI_ERR_SUCCESS) {
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queue_remove(dev->le_big, big);
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le_big_free(big);
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}
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cmd_complete(dev, BT_HCI_CMD_LE_BIG_TERM_SYNC, &rsp, sizeof(rsp));
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@ -7257,7 +7304,6 @@ struct btdev *btdev_create(enum btdev_type type, uint16_t id)
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btdev->iso_mtu = 251;
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btdev->iso_max_pkt = 1;
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btdev->big_handle = 0xff;
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for (i = 0; i < ARRAY_SIZE(btdev->le_cig); ++i)
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btdev->le_cig[i].params.cig_id = 0xff;
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@ -7276,6 +7322,7 @@ struct btdev *btdev_create(enum btdev_type type, uint16_t id)
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btdev->conns = queue_new();
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btdev->le_ext_adv = queue_new();
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btdev->le_per_adv = queue_new();
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btdev->le_big = queue_new();
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btdev->le_al_len = AL_SIZE;
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btdev->le_rl_len = RL_SIZE;
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@ -7296,6 +7343,7 @@ void btdev_destroy(struct btdev *btdev)
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queue_destroy(btdev->conns, conn_remove);
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queue_destroy(btdev->le_ext_adv, le_ext_adv_free);
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queue_destroy(btdev->le_per_adv, free);
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queue_destroy(btdev->le_big, le_big_free);
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free(btdev);
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}
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