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NFC: hci: Change nfc_hci_send_response gate parameter to pipe 

As there can be several pipes connected to the same gate, we need
to know which pipe ID to use when sending an HCI response. A gate
ID is not enough.

Instead of changing the nfc_hci_send_response() API to something
not aligned with the rest of the HCI API, we call nfc_hci_hcp_message_tx
directly.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Christophe Ricard 2015-01-27 01:18:13 +01:00 committed by Samuel Ortiz
parent 118278f20a
commit af77522320
3 changed files with 8 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/nfc/hci.h
View File

@ -260,8 +260,6 @@ int nfc_hci_send_cmd(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
int nfc_hci_send_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd, int nfc_hci_send_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
const u8 *param, size_t param_len, const u8 *param, size_t param_len,
data_exchange_cb_t cb, void *cb_context); data_exchange_cb_t cb, void *cb_context);
int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
const u8 *param, size_t param_len);
int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event, int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
const u8 *param, size_t param_len); const u8 *param, size_t param_len);
int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate); int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);

17
net/nfc/hci/command.c
View File

@ -116,23 +116,6 @@ int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
} }
EXPORT_SYMBOL(nfc_hci_send_event); EXPORT_SYMBOL(nfc_hci_send_event);
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);
}
EXPORT_SYMBOL(nfc_hci_send_response);
/* /*
* Execute an hci command sent to gate. * Execute an hci command sent to gate.
* skb will contain response data if success. skb can be NULL if you are not * skb will contain response data if success. skb can be NULL if you are not

12
net/nfc/hci/core.c
View File

@ -209,7 +209,8 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
local_gate = skb->data[3]; local_gate = skb->data[3];
new_pipe = skb->data[4]; new_pipe = skb->data[4];
nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, NULL, 0); nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
NFC_HCI_ANY_OK, NULL, 0, NULL, NULL, 0);
/* save the new created pipe and bind with local gate, /* save the new created pipe and bind with local gate,
* the description for skb->data[3] is destination gate id * the description for skb->data[3] is destination gate id
@ -223,11 +224,14 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
* open it * open it
*/ */
if (gate != 0xff) if (gate != 0xff)
nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
&gate_opened, 1); NFC_HCI_ANY_OK, &gate_opened, 1,
NULL, NULL, 0);
break; break;
case NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED: case NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED:
nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, NULL, 0); nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
NFC_HCI_ANY_OK, NULL, 0, NULL, NULL, 0);
break; break;
default: default:
pr_info("Discarded unknown cmd %x to gate %x\n", cmd, gate); pr_info("Discarded unknown cmd %x to gate %x\n", cmd, gate);