static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
{
pr_debug("\n");
return nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
NFC_HCI_ADM_DELETE_PIPE, &pipe, 1, NULL);
}
static u8 nfc_hci_create_pipe(struct nfc_hci_dev *hdev, u8 dest_host,
u8 dest_gate, int *result)
{
struct sk_buff *skb;
struct hci_create_pipe_params params;
struct hci_create_pipe_resp *resp;
u8 pipe;
pr_debug("gate=%d\n", dest_gate);
params.src_gate = NFC_HCI_ADMIN_GATE;
params.dest_host = dest_host;
params.dest_gate = dest_gate;
*result = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
NFC_HCI_ADM_CREATE_PIPE,
(u8 *) ¶ms, sizeof(params), &skb);
if (*result == 0) {
resp = (struct hci_create_pipe_resp *)skb->data;
pipe = resp->pipe;
kfree_skb(skb);
pr_debug("pipe created=%d\n", pipe);
return pipe;
} else
return NFC_HCI_INVALID_PIPE;
}
static int nfc_hci_close_pipe(struct nfc_hci_dev *hdev, u8 pipe)
{
pr_debug("\n");
return nfc_hci_execute_cmd(hdev, pipe, NFC_HCI_ANY_CLOSE_PIPE,
NULL, 0, NULL);
}
/*
* Execute an hci command sent to gate.
* skb will contain response data if success. skb can be NULL if you are not
* interested by the response.
*/
int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
const u8 *param, size_t param_len, struct sk_buff **skb)
{
u8 pipe;
pr_debug("\n");
pipe = hdev->gate2pipe[gate];
if (pipe == NFC_HCI_INVALID_PIPE)
return -EADDRNOTAVAIL;
return nfc_hci_execute_cmd(hdev, pipe, cmd, param, param_len, skb);
}
static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
{
int r;
u8 param[2];
/* TODO: Find out what the identity reference data is
* and fill param with it. HCI spec 6.1.3.5 */
pr_debug("\n");
r = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
NFC_HCI_ADM_CLEAR_ALL_PIPE, param, 2, NULL);
return 0;
}
static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
{
u8 param[2];
size_t param_len = 2;
/* TODO: Find out what the identity reference data is
* and fill param with it. HCI spec 6.1.3.5 */
pr_debug("\n");
if (test_bit(NFC_HCI_QUIRK_SHORT_CLEAR, &hdev->quirks))
param_len = 0;
return nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
NFC_HCI_ADM_CLEAR_ALL_PIPE, param, param_len,
NULL);
}
static int nfc_hci_open_pipe(struct nfc_hci_dev *hdev, u8 pipe)
{
struct sk_buff *skb;
int r;
pr_debug("pipe=%d\n", pipe);
r = nfc_hci_execute_cmd(hdev, pipe, NFC_HCI_ANY_OPEN_PIPE,
NULL, 0, &skb);
if (r == 0) {
/* dest host other than host controller will send
* number of pipes already open on this gate before
* execution. The number can be found in skb->data[0]
*/
kfree_skb(skb);
}
return r;
}
