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extmod/modbluetooth: Add ble.hci_cmd(ogf, ocf, req, resp) function.

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This allows sending arbitrary HCI commands and getting the response.  The
return value of the function is the status of the command.

This is intended for debugging and not to be a part of the public API, and
must be enabled via mpconfigboard.h.  It's currently only implemented for
NimBLE bindings.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
2021-01-22 17:30:25 +11:00
committed by Damien George
parent 49dd9ba1a5
commit aa136b4d78
3 changed files with 52 additions and 1 deletions
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23
extmod/nimble/modbluetooth_nimble.c
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@@ -81,9 +81,11 @@ STATIC int ble_hs_err_to_errno(int err) {
return 0;
}
if (err >= 0 && (unsigned)err < MP_ARRAY_SIZE(ble_hs_err_to_errno_table) && ble_hs_err_to_errno_table[err]) {
// Return an MP_Exxx error code.
return ble_hs_err_to_errno_table[err];
} else {
return MP_EIO;
// Pass through the BLE error code.
return -err;
}
}
@@ -1660,6 +1662,25 @@ int mp_bluetooth_l2cap_recvinto(uint16_t conn_handle, uint16_t cid, uint8_t *buf
#endif // MICROPY_PY_BLUETOOTH_ENABLE_L2CAP_CHANNELS
#if MICROPY_PY_BLUETOOTH_ENABLE_HCI_CMD
// For ble_hs_hci_cmd_tx
#include "nimble/host/src/ble_hs_hci_priv.h"
int mp_bluetooth_hci_cmd(uint16_t ogf, uint16_t ocf, const uint8_t *req, size_t req_len, uint8_t *resp, size_t resp_len, uint8_t *status) {
int rc = ble_hs_hci_cmd_tx(BLE_HCI_OP(ogf, ocf), req, req_len, resp, resp_len);
if (rc < BLE_HS_ERR_HCI_BASE || rc >= BLE_HS_ERR_HCI_BASE + 0x100) {
// The controller didn't handle the command (e.g. HCI timeout).
return ble_hs_err_to_errno(rc);
} else {
// The command executed, but had an error (i.e. invalid parameter).
*status = rc - BLE_HS_ERR_HCI_BASE;
return 0;
}
}
#endif // MICROPY_PY_BLUETOOTH_ENABLE_HCI_CMD
#if MICROPY_PY_BLUETOOTH_ENABLE_PAIRING_BONDING
STATIC int ble_store_ram_read(int obj_type, const union ble_store_key *key, union ble_store_value *value) {