static int nfc_hci_execute_cmd(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
const u8 *param, size_t param_len,
struct sk_buff **skb)
{
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(ew_wq);
struct hcp_exec_waiter hcp_ew;
hcp_ew.wq = &ew_wq;
hcp_ew.exec_complete = false;
hcp_ew.result_skb = NULL;
pr_debug("through pipe=%d, cmd=%d, plen=%zd\n", pipe, cmd, param_len);
/* TODO: Define hci cmd execution delay. Should it be the same
* for all commands?
*/
hcp_ew.exec_result = nfc_hci_hcp_message_tx(hdev, pipe,
NFC_HCI_HCP_COMMAND, cmd,
param, param_len,
nfc_hci_execute_cb, &hcp_ew,
3000);
if (hcp_ew.exec_result < 0)
return hcp_ew.exec_result;
wait_event(ew_wq, hcp_ew.exec_complete == true);
if (hcp_ew.exec_result == 0) {
if (skb)
*skb = hcp_ew.result_skb;
else
kfree_skb(hcp_ew.result_skb);
}
return hcp_ew.exec_result;
}
static int nfc_hci_execute_cmd_async(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
const u8 *param, size_t param_len,
data_exchange_cb_t cb, void *cb_context)
{
pr_debug("exec cmd async through pipe=%d, cmd=%d, plen=%zd\n", pipe,
cmd, param_len);
/* TODO: Define hci cmd execution delay. Should it be the same
* for all commands?
*/
return nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_COMMAND, cmd,
param, param_len, cb, cb_context, MAX_FWI);
}
int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
const u8 *param, size_t param_len)
{
u8 pipe;
pr_debug("%d to gate %d\n", event, gate);
pipe = hdev->gate2pipe[gate];
if (pipe == NFC_HCI_INVALID_PIPE)
return -EADDRNOTAVAIL;
return nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_EVENT, event,
param, param_len, NULL, NULL, 0);
}
int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
const u8 *param, size_t param_len)
{
u8 pipe;
pr_debug("\n");
pipe = hdev->gate2pipe[gate];
if (pipe == NFC_HCI_INVALID_PIPE)
return -EADDRNOTAVAIL;
return nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
response, param, param_len, NULL, NULL,
0);
}
