Commit e4c4789e authored by Eric Lapuyade's avatar Eric Lapuyade Committed by Samuel Ortiz
Browse files

NFC: Add a public nfc_hci_send_cmd_async method 



This method initiates execution of an HCI cmd. Result will be delivered
through an asynchronous callback.

Signed-off-by: default avatarEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent b5faa648

include/net/nfc/hci.h

+3 −0
Original line number Diff line number Diff line
@@ -200,6 +200,9 @@ int nfc_hci_set_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx, 
		      const u8 *param, size_t param_len);

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);

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);

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,

net/nfc/hci/command.c

+33 −1
Original line number Diff line number Diff line
@@ -28,6 +28,20 @@ 


#include "hci.h"



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, 3000);

}



/*

 * HCI command execution completion callback.

 * err will be a standard linux error (may be converted from HCI response)
@@ -60,7 +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?
@@ -138,6 +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)

{