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wireless/bluetooth: Adds implementation of GATT write IOCTL commands.

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This commit is contained in:
Gregory Nutt 2018-04-21 08:55:42 -06:00
parent 87dd2dc16a
commit 5a8a9e3aec
2 changed files with 71 additions and 2 deletions
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5
include/nuttx/wireless/bt_ioctl.h
View File

@ -475,7 +475,10 @@ struct btreq_s
FAR uint8_t *btgrr_rddata; /* Values returned by read */
} btgrr;
/* Read-only data that accompanies the SIOCBTGATTWR command */
/* Read-only data that accompanies the SIOCBTGATTWR command.
* NOTE: The write data provided by the caller is not buffered
* and must persist until the completion of the write.
*/
struct
{

68
wireless/bluetooth/bt_ioctl.c
View File

@ -593,6 +593,28 @@ static int btnet_read_result(FAR struct btreq_s *btreq)
return OK;
}
/****************************************************************************
* Name: bnet_write_callback
*
* Description:
* Result of write operation.
*
* Input Parameters:
* conn - The address of the peer in the MTU exchange
* result - The result of the MTU exchange
*
* Returned Value:
* None
*
****************************************************************************/
static void bnet_write_callback(FAR struct bt_conn_s *conn, uint8_t result)
{
wlinfo("Exchange %s\n", result == 0 ? "succeeded" : "failed");
g_gattwrresult.br_pending = false;
g_gattwrresult.br_result = result;
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -1023,7 +1045,51 @@ int btnet_ioctl(FAR struct net_driver_s *netdev, int cmd, unsigned long arg)
case SIOCBTGATTWR:
{
ret = -ENOSYS;
DEBUGASSERT(btreq->btr_wrdata != NULL);
/* Is there already a write in progress? The current
* implementation can support only one write at a time.
* REVISIT.. see suggested design improvement above.
*/
if (g_gattwrresult.br_pending)
{
wlwarn("WARNING: Read pending\n");
ret = -EBUSY;
}
else
{
FAR struct bt_conn_s *conn;
/* Get the connection associated with the provided LE address */
conn = bt_conn_lookup_addr_le(&btreq->btr_wrpeer);
if (conn == NULL)
{
wlwarn("WARNING: Peer not connected\n");
ret = -ENOTCONN;
}
else
{
/* Set up for the write */
g_gattwrresult.br_pending = true;
g_gattwrresult.br_result = EBUSY;
/* Initiate write */
ret = bt_gatt_write(conn, btreq->btr_wrhandle,
btreq->btr_wrdata,
btreq->btr_wrnbytes,
bnet_write_callback);
if (ret < 0)
{
wlerr("ERROR: Write operation failed: %d\n", ret);
}
bt_conn_release(conn);
}
}
}
break;