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Diffstat (limited to 'net/nfc/hci/command.c')
-rw-r--r--net/nfc/hci/command.c98
1 files changed, 64 insertions, 34 deletions
diff --git a/net/nfc/hci/command.c b/net/nfc/hci/command.c
index 8729abf5f18..677d24bb70f 100644
--- a/net/nfc/hci/command.c
+++ b/net/nfc/hci/command.c
@@ -12,9 +12,7 @@
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the
- * Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#define pr_fmt(fmt) "hci: %s: " fmt, __func__
@@ -28,26 +26,35 @@
#include "hci.h"
-static int nfc_hci_result_to_errno(u8 result)
+#define MAX_FWI 4949
+
+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)
{
- switch (result) {
- case NFC_HCI_ANY_OK:
- return 0;
- case NFC_HCI_ANY_E_TIMEOUT:
- return -ETIMEDOUT;
- default:
- return -1;
- }
+ 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);
}
-static void nfc_hci_execute_cb(struct nfc_hci_dev *hdev, u8 result,
- struct sk_buff *skb, void *cb_data)
+/*
+ * HCI command execution completion callback.
+ * err will be a standard linux error (may be converted from HCI response)
+ * skb contains the response data and must be disposed, or may be NULL if
+ * an error occured
+ */
+static void nfc_hci_execute_cb(void *context, struct sk_buff *skb, int err)
{
- struct hcp_exec_waiter *hcp_ew = (struct hcp_exec_waiter *)cb_data;
+ struct hcp_exec_waiter *hcp_ew = (struct hcp_exec_waiter *)context;
- pr_debug("HCI Cmd completed with HCI result=%d\n", result);
+ pr_debug("HCI Cmd completed with result=%d\n", err);
- hcp_ew->exec_result = nfc_hci_result_to_errno(result);
+ hcp_ew->exec_result = err;
if (hcp_ew->exec_result == 0)
hcp_ew->result_skb = skb;
else
@@ -67,7 +74,8 @@ static int nfc_hci_execute_cmd(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
hcp_ew.exec_complete = false;
hcp_ew.result_skb = NULL;
- pr_debug("through pipe=%d, cmd=%d, plen=%zd\n", pipe, cmd, param_len);
+ pr_debug("exec cmd sync 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?
@@ -76,7 +84,7 @@ static int nfc_hci_execute_cmd(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
NFC_HCI_HCP_COMMAND, cmd,
param, param_len,
nfc_hci_execute_cb, &hcp_ew,
- 3000);
+ MAX_FWI);
if (hcp_ew.exec_result < 0)
return hcp_ew.exec_result;
@@ -145,6 +153,23 @@ int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
}
EXPORT_SYMBOL(nfc_hci_send_cmd);
+int nfc_hci_send_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
+ const u8 *param, size_t param_len,
+ data_exchange_cb_t cb, void *cb_context)
+{
+ u8 pipe;
+
+ pr_debug("\n");
+
+ pipe = hdev->gate2pipe[gate];
+ if (pipe == NFC_HCI_INVALID_PIPE)
+ return -EADDRNOTAVAIL;
+
+ return nfc_hci_execute_cmd_async(hdev, pipe, cmd, param, param_len,
+ cb, cb_context);
+}
+EXPORT_SYMBOL(nfc_hci_send_cmd_async);
+
int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
const u8 *param, size_t param_len)
{
@@ -232,16 +257,16 @@ static u8 nfc_hci_create_pipe(struct nfc_hci_dev *hdev, u8 dest_host,
*result = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
NFC_HCI_ADM_CREATE_PIPE,
(u8 *) &params, sizeof(params), &skb);
- if (*result == 0) {
- resp = (struct hci_create_pipe_resp *)skb->data;
- pipe = resp->pipe;
- kfree_skb(skb);
+ if (*result < 0)
+ return NFC_HCI_INVALID_PIPE;
- pr_debug("pipe created=%d\n", pipe);
+ resp = (struct hci_create_pipe_resp *)skb->data;
+ pipe = resp->pipe;
+ kfree_skb(skb);
- return pipe;
- } else
- return NFC_HCI_INVALID_PIPE;
+ pr_debug("pipe created=%d\n", pipe);
+
+ return pipe;
}
static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
@@ -254,19 +279,20 @@ static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
{
- int r;
-
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");
- r = nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
- NFC_HCI_ADM_CLEAR_ALL_PIPE, param, 2, NULL);
+ if (test_bit(NFC_HCI_QUIRK_SHORT_CLEAR, &hdev->quirks))
+ param_len = 0;
- return 0;
+ return nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
+ NFC_HCI_ADM_CLEAR_ALL_PIPE, param, param_len,
+ NULL);
}
int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate)
@@ -311,9 +337,9 @@ int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev)
}
EXPORT_SYMBOL(nfc_hci_disconnect_all_gates);
-int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
+int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
+ u8 pipe)
{
- u8 pipe = NFC_HCI_INVALID_PIPE;
bool pipe_created = false;
int r;
@@ -322,6 +348,9 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
if (hdev->gate2pipe[dest_gate] != NFC_HCI_INVALID_PIPE)
return -EADDRINUSE;
+ if (pipe != NFC_HCI_INVALID_PIPE)
+ goto open_pipe;
+
switch (dest_gate) {
case NFC_HCI_LINK_MGMT_GATE:
pipe = NFC_HCI_LINK_MGMT_PIPE;
@@ -337,6 +366,7 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
break;
}
+open_pipe:
r = nfc_hci_open_pipe(hdev, pipe);
if (r < 0) {
if (pipe_created)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 15:19:09 +0000