RE: BLE L2CAP Test with PTS

Ulrich Myhre — Mon, 23 Oct 2017 09:42:42 GMT

Hi,

Just establishing a normal connection will establish the required L2CAP signaling channel. For the Connection Oriented Channels test, you need to establish the channels yourself. We are passing these tests internally, and I can share our general test procedures for each of the test cases you list:

TP/LE/CPU/BV-01-C

Advertise and wait for connection.
Call sd_ble_gap_conn_param_update() with some new parameters.
Wait for disconnection to occur, ignoring BLE_GAP_EVT_CONN_PARAM_UPDATE, as PTS sometimes disconnect before this is triggered.

TP/LE/REJ/BI-01-C

Advertise and wait for connection.
Wait for disconnection. (L2CAP will autonomously reject unknown commands)

TP/LE/CFC/BV-01-C

Advertise and wait for connection.
Wait a bit and call sd_ble_l2cap_ch_setup() to setup a L2CAP data channel.
Wait for SDU buffer to be released and channel setup to be refused.
Note: In automated runs, PTS will disconnect before the reject has gone over the air.
Wait for disconnection.

TP/LE/CID/BV-02-C

This test should not be run with current Nordic Softdevices. If it is active in the test plan, that might be a mistake. From what I can see, it requires GAP 44/1, 44/2 or 45/31, all being features for simultaneous BR/EDR and LE transports.

For TP/LE/CFC/BV-01-C specifically, here is the initialization code we use (with replaced constants etc.):

#define L2CAP_MTU_DEFAULT 1280
#define TSPX_LE_PSM 0x0025

static uint8_t m_sdu_data_rx[L2CAP_MTU_DEFAULT] = {0};
ble_data_t sdu_buf_rx = { .len = sizeof(m_sdu_data_rx), .p_data = m_sdu_data_rx };
uint16_t local_cid = BLE_L2CAP_CID_INVALID;

// Connect here and get a valid connection handle

ble_l2cap_ch_setup_params_t ch_setup_params = {.le_psm = TSPX_LE_PSM, .rx_mtu = L2CAP_MTU_DEFAULT, .rx_mps = BLE_L2CAP_MPS_MIN, .sdu_buf = &sdu_buf_rx);
sd_ble_l2cap_ch_setup(m_conn_handle, &local_cid, &ch_setup_params);

// Expect BLE_L2CAP_EVT_CH_SDU_BUF_RELEASED
// Expect BLE_L2CAP_EVT_CH_SETUP_REFUSED
// Expect BLE_GAP_EVT_DISCONNECTED

RE: BLE L2CAP Test with PTS

Greg Lund — Thu, 21 Sep 2017 16:47:28 GMT

I am also wondering about this. Does anyone at Nordic have any information on setting up a Unit under Test for the L2CAP and SM tests for Bluetooth Certification?