Bluetooth: ISO: Move functions around to reduce number of guards

Move a few unicast functions around so that we reduce the number
of #if defined guards. No code has changed, but a single
prototype has been added.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2021-12-02 15:13:42 +01:00 committed by Marti Bolivar
parent 3a68de4fba
commit 4e557d71cc

View File

@ -51,6 +51,7 @@ struct bt_conn iso_conns[CONFIG_BT_ISO_MAX_CHAN];
struct bt_iso_cig cigs[CONFIG_BT_ISO_MAX_CIG];
static struct bt_iso_cig *get_cig(const struct bt_iso_chan *iso_chan);
static void bt_iso_remove_data_path(struct bt_conn *iso);
#endif /* CONFIG_BT_ISO_CENTRAL */
#if defined(CONFIG_BT_ISO_PERIPHERAL)
static struct bt_iso_server *iso_server;
@ -177,7 +178,6 @@ struct net_buf *bt_iso_create_frag_timeout(size_t reserve, k_timeout_t timeout)
#endif
}
static int hci_le_setup_iso_data_path(const struct bt_conn *iso, uint8_t dir,
const struct bt_iso_chan_path *path)
{
@ -219,39 +219,6 @@ static int hci_le_setup_iso_data_path(const struct bt_conn *iso, uint8_t dir,
return err;
}
#if defined(CONFIG_BT_ISO_CENTRAL)
static int hci_le_remove_iso_data_path(struct bt_conn *iso, uint8_t dir)
{
struct bt_hci_cp_le_remove_iso_path *cp;
struct bt_hci_rp_le_remove_iso_path *rp;
struct net_buf *buf, *rsp;
int err;
buf = bt_hci_cmd_create(BT_HCI_OP_LE_REMOVE_ISO_PATH, sizeof(*cp));
if (!buf) {
return -ENOBUFS;
}
cp = net_buf_add(buf, sizeof(*cp));
cp->handle = iso->handle;
cp->path_dir = dir;
err = bt_hci_cmd_send_sync(BT_HCI_OP_LE_REMOVE_ISO_PATH, buf, &rsp);
if (err) {
return err;
}
rp = (void *)rsp->data;
if (rp->status || (sys_le16_to_cpu(rp->handle) != iso->handle)) {
err = -EIO;
}
net_buf_unref(rsp);
return err;
}
#endif /* CONFIG_BT_ISO_CENTRAL */
static void bt_iso_chan_add(struct bt_conn *iso, struct bt_iso_chan *chan)
{
/* Attach ISO channel to the connection */
@ -393,55 +360,6 @@ void bt_iso_connected(struct bt_conn *iso)
}
}
#if defined(CONFIG_BT_ISO_CENTRAL)
static void bt_iso_remove_data_path(struct bt_conn *iso)
{
BT_DBG("%p", iso);
/* TODO: Removing the ISO data path is never used for broadcast:
* Remove the following broadcast implementation?
*/
if ((IS_ENABLED(CONFIG_BT_ISO_BROADCASTER) &&
iso->iso.info.type == BT_ISO_CHAN_TYPE_BROADCASTER) ||
(IS_ENABLED(CONFIG_BT_ISO_SYNC_RECEIVER) &&
iso->iso.info.type == BT_ISO_CHAN_TYPE_SYNC_RECEIVER)) {
struct bt_iso_chan *chan;
struct bt_iso_chan_io_qos *tx_qos;
uint8_t dir;
chan = iso_chan(iso);
if (chan == NULL) {
return;
}
tx_qos = chan->qos->tx;
/* Only remove one data path for BIS as per the spec */
if (tx_qos) {
dir = BT_HCI_DATAPATH_DIR_HOST_TO_CTLR;
} else {
dir = BT_HCI_DATAPATH_DIR_CTLR_TO_HOST;
}
(void)hci_le_remove_iso_data_path(iso, dir);
} else if (IS_ENABLED(CONFIG_BT_ISO_UNICAST) &&
iso->iso.info.type == BT_ISO_CHAN_TYPE_CONNECTED) {
/* Remove both directions for CIS*/
/* TODO: Check which has been setup first to avoid removing
* data paths that are not setup
*/
(void)hci_le_remove_iso_data_path(iso,
BT_HCI_DATAPATH_DIR_CTLR_TO_HOST);
(void)hci_le_remove_iso_data_path(iso,
BT_HCI_DATAPATH_DIR_HOST_TO_CTLR);
} else {
__ASSERT(false, "Invalid iso.info.type: %u",
iso->iso.info.type);
}
}
#endif /* CONFIG_BT_ISO_CENTRAL */
static void bt_iso_chan_disconnected(struct bt_iso_chan *chan, uint8_t reason)
{
BT_DBG("%p, reason 0x%02x", chan, reason);
@ -812,65 +730,25 @@ static bool valid_chan_io_qos(const struct bt_iso_chan_io_qos *io_qos,
#endif /* CONFIG_BT_ISO_UNICAST) || CONFIG_BT_ISO_BROADCASTER */
#if defined(CONFIG_BT_ISO_UNICAST)
#if defined(CONFIG_BT_ISO_PERIPHERAL)
static int iso_accept(struct bt_conn *acl, struct bt_conn *iso)
int bt_iso_chan_disconnect(struct bt_iso_chan *chan)
{
struct bt_iso_accept_info accept_info;
struct bt_iso_chan *chan;
int err;
CHECKIF(!iso || iso->type != BT_CONN_TYPE_ISO) {
BT_DBG("Invalid parameters: iso %p iso->type %u", iso,
iso ? iso->type : 0);
CHECKIF(!chan) {
BT_DBG("Invalid parameter: chan %p", chan);
return -EINVAL;
}
BT_DBG("%p", iso);
if (!iso_server) {
return -ENOMEM;
CHECKIF(chan->iso == NULL) {
BT_DBG("Channel has not been initialized in a CIG");
return -EINVAL;
}
accept_info.acl = acl;
accept_info.cig_id = iso->iso.cig_id;
accept_info.cis_id = iso->iso.cis_id;
err = iso_server->accept(&accept_info, &chan);
if (err < 0) {
BT_ERR("Server failed to accept: %d", err);
return err;
if (chan->iso->iso.acl == NULL) {
BT_DBG("Channel is not connected");
return -ENOTCONN;
}
bt_iso_chan_add(iso, chan);
bt_iso_chan_set_state(chan, BT_ISO_STATE_CONNECTING);
return 0;
return bt_conn_disconnect(chan->iso, BT_HCI_ERR_REMOTE_USER_TERM_CONN);
}
#endif /* CONFIG_BT_ISO_PERIPHERAL */
#if defined(CONFIG_BT_ISO_CENTRAL)
static bool valid_chan_qos(const struct bt_iso_chan_qos *qos)
{
if (qos->rx != NULL) {
if (!valid_chan_io_qos(qos->rx, false)) {
BT_DBG("Invalid rx qos");
return false;
}
} else if (qos->tx == NULL) {
BT_DBG("Both rx and tx qos are NULL");
return false;
}
if (qos->tx != NULL) {
if (!valid_chan_io_qos(qos->tx, true)) {
BT_DBG("Invalid tx qos");
return false;
}
}
return true;
}
#endif /* CONFIG_BT_ISO_CENTRAL */
void bt_iso_cleanup_acl(struct bt_conn *iso)
{
@ -977,6 +855,74 @@ void hci_le_cis_established(struct net_buf *buf)
}
#if defined(CONFIG_BT_ISO_PERIPHERAL)
int bt_iso_server_register(struct bt_iso_server *server)
{
CHECKIF(!server) {
BT_DBG("Invalid parameter: server %p", server);
return -EINVAL;
}
/* Check if controller is ISO capable */
if (!BT_FEAT_LE_CIS_PERIPHERAL(bt_dev.le.features)) {
return -ENOTSUP;
}
if (iso_server) {
return -EADDRINUSE;
}
if (!server->accept) {
return -EINVAL;
}
if (server->sec_level > BT_SECURITY_L3) {
return -EINVAL;
} else if (server->sec_level < BT_SECURITY_L1) {
/* Level 0 is only applicable for BR/EDR */
server->sec_level = BT_SECURITY_L1;
}
BT_DBG("%p", server);
iso_server = server;
return 0;
}
static int iso_accept(struct bt_conn *acl, struct bt_conn *iso)
{
struct bt_iso_accept_info accept_info;
struct bt_iso_chan *chan;
int err;
CHECKIF(!iso || iso->type != BT_CONN_TYPE_ISO) {
BT_DBG("Invalid parameters: iso %p iso->type %u", iso,
iso ? iso->type : 0);
return -EINVAL;
}
BT_DBG("%p", iso);
if (!iso_server) {
return -ENOMEM;
}
accept_info.acl = acl;
accept_info.cig_id = iso->iso.cig_id;
accept_info.cis_id = iso->iso.cis_id;
err = iso_server->accept(&accept_info, &chan);
if (err < 0) {
BT_ERR("Server failed to accept: %d", err);
return err;
}
bt_iso_chan_add(iso, chan);
bt_iso_chan_set_state(chan, BT_ISO_STATE_CONNECTING);
return 0;
}
int hci_le_reject_cis(uint16_t handle, uint8_t reason)
{
struct bt_hci_cp_le_reject_cis *cp;
@ -1088,9 +1034,124 @@ void hci_le_cis_req(struct net_buf *buf)
return;
}
}
struct bt_conn *bt_conn_add_iso(struct bt_conn *acl)
{
struct bt_conn *iso = iso_new();
if (iso == NULL) {
BT_ERR("Unable to allocate ISO connection");
return NULL;
}
iso->iso.acl = bt_conn_ref(acl);
return iso;
}
#endif /* CONFIG_BT_ISO_PERIPHERAL */
#if defined(CONFIG_BT_ISO_CENTRAL)
static int hci_le_remove_iso_data_path(struct bt_conn *iso, uint8_t dir)
{
struct bt_hci_cp_le_remove_iso_path *cp;
struct bt_hci_rp_le_remove_iso_path *rp;
struct net_buf *buf, *rsp;
int err;
buf = bt_hci_cmd_create(BT_HCI_OP_LE_REMOVE_ISO_PATH, sizeof(*cp));
if (!buf) {
return -ENOBUFS;
}
cp = net_buf_add(buf, sizeof(*cp));
cp->handle = iso->handle;
cp->path_dir = dir;
err = bt_hci_cmd_send_sync(BT_HCI_OP_LE_REMOVE_ISO_PATH, buf, &rsp);
if (err) {
return err;
}
rp = (void *)rsp->data;
if (rp->status || (sys_le16_to_cpu(rp->handle) != iso->handle)) {
err = -EIO;
}
net_buf_unref(rsp);
return err;
}
static void bt_iso_remove_data_path(struct bt_conn *iso)
{
enum bt_iso_chan_type type = iso->iso.info.type;
BT_DBG("%p", iso);
/* TODO: Removing the ISO data path is never used for broadcast:
* Remove the following broadcast implementation?
*/
if ((IS_ENABLED(CONFIG_BT_ISO_BROADCASTER) &&
type == BT_ISO_CHAN_TYPE_BROADCASTER) ||
(IS_ENABLED(CONFIG_BT_ISO_SYNC_RECEIVER) &&
type == BT_ISO_CHAN_TYPE_SYNC_RECEIVER)) {
struct bt_iso_chan *chan;
struct bt_iso_chan_io_qos *tx_qos;
uint8_t dir;
chan = iso_chan(iso);
if (chan == NULL) {
return;
}
tx_qos = chan->qos->tx;
/* Only remove one data path for BIS as per the spec */
if (tx_qos) {
dir = BT_HCI_DATAPATH_DIR_HOST_TO_CTLR;
} else {
dir = BT_HCI_DATAPATH_DIR_CTLR_TO_HOST;
}
(void)hci_le_remove_iso_data_path(iso, dir);
} else if (IS_ENABLED(CONFIG_BT_ISO_UNICAST) &&
type == BT_ISO_CHAN_TYPE_CONNECTED) {
/* Remove both directions for CIS*/
/* TODO: Check which has been setup first to avoid removing
* data paths that are not setup
*/
(void)hci_le_remove_iso_data_path(iso,
BT_HCI_DATAPATH_DIR_CTLR_TO_HOST);
(void)hci_le_remove_iso_data_path(iso,
BT_HCI_DATAPATH_DIR_HOST_TO_CTLR);
} else {
__ASSERT(false, "Invalid iso.type: %u", type);
}
}
static bool valid_chan_qos(const struct bt_iso_chan_qos *qos)
{
if (qos->rx != NULL) {
if (!valid_chan_io_qos(qos->rx, false)) {
BT_DBG("Invalid rx qos");
return false;
}
} else if (qos->tx == NULL) {
BT_DBG("Both rx and tx qos are NULL");
return false;
}
if (qos->tx != NULL) {
if (!valid_chan_io_qos(qos->tx, true)) {
BT_DBG("Invalid tx qos");
return false;
}
}
return true;
}
static int hci_le_remove_cig(uint8_t cig_id)
{
struct bt_hci_cp_le_remove_cig *req;
@ -1109,25 +1170,7 @@ static int hci_le_remove_cig(uint8_t cig_id)
return bt_hci_cmd_send_sync(BT_HCI_OP_LE_REMOVE_CIG, buf, NULL);
}
#endif /* CONFIG_BT_ISO_CENTRAL */
#if defined(CONFIG_BT_ISO_PERIPHERAL)
struct bt_conn *bt_conn_add_iso(struct bt_conn *acl)
{
struct bt_conn *iso = iso_new();
if (iso == NULL) {
BT_ERR("Unable to allocate ISO connection");
return NULL;
}
iso->iso.acl = bt_conn_ref(acl);
return iso;
}
#endif /* CONFIG_BT_ISO_PERIPHERAL */
#if defined(CONFIG_BT_ISO_CENTRAL)
static struct net_buf *hci_le_set_cig_params(const struct bt_iso_cig *cig,
const struct bt_iso_cig_param *param)
{
@ -1664,62 +1707,6 @@ int bt_iso_chan_connect(const struct bt_iso_connect_param *param, size_t count)
return 0;
}
#endif /* CONFIG_BT_ISO_CENTRAL */
int bt_iso_chan_disconnect(struct bt_iso_chan *chan)
{
CHECKIF(!chan) {
BT_DBG("Invalid parameter: chan %p", chan);
return -EINVAL;
}
CHECKIF(chan->iso == NULL) {
BT_DBG("Channel has not been initialized in a CIG");
return -EINVAL;
}
if (chan->iso->iso.acl == NULL) {
BT_DBG("Channel is not connected");
return -ENOTCONN;
}
return bt_conn_disconnect(chan->iso, BT_HCI_ERR_REMOTE_USER_TERM_CONN);
}
#if defined(CONFIG_BT_ISO_PERIPHERAL)
int bt_iso_server_register(struct bt_iso_server *server)
{
CHECKIF(!server) {
BT_DBG("Invalid parameter: server %p", server);
return -EINVAL;
}
/* Check if controller is ISO capable */
if (!BT_FEAT_LE_CIS_PERIPHERAL(bt_dev.le.features)) {
return -ENOTSUP;
}
if (iso_server) {
return -EADDRINUSE;
}
if (!server->accept) {
return -EINVAL;
}
if (server->sec_level > BT_SECURITY_L3) {
return -EINVAL;
} else if (server->sec_level < BT_SECURITY_L1) {
/* Level 0 is only applicable for BR/EDR */
server->sec_level = BT_SECURITY_L1;
}
BT_DBG("%p", server);
iso_server = server;
return 0;
}
#endif /* CONFIG_BT_ISO_PERIPHERAL */
#endif /* CONFIG_BT_ISO_UNICAST */
#if defined(CONFIG_BT_ISO_BROADCAST)