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/*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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.
*/
#ifndef __LOCAL_HCI_H
#define __LOCAL_HCI_H
struct gate_pipe_map {
u8 gate;
u8 pipe;
};
struct hcp_message {
u8 header; /* type -cmd,evt,rsp- + instruction */
u8 data[];
} __packed;
struct hcp_packet {
u8 header; /* cbit+pipe */
struct hcp_message message;
} __packed;
/*
* HCI command execution completion callback.
* result 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
*/
typedef void (*hci_cmd_cb_t) (struct nfc_hci_dev *hdev, int result,
struct sk_buff *skb, void *cb_data);
struct hcp_exec_waiter {
wait_queue_head_t *wq;
bool exec_complete;
int exec_result;
struct sk_buff *result_skb;
};
struct hci_msg {
struct list_head msg_l;
struct sk_buff_head msg_frags;
bool wait_response;
hci_cmd_cb_t cb;
void *cb_context;
unsigned long completion_delay;
};
struct hci_create_pipe_params {
u8 src_gate;
u8 dest_host;
u8 dest_gate;
} __packed;
struct hci_create_pipe_resp {
u8 src_host;
u8 src_gate;
u8 dest_host;
u8 dest_gate;
u8 pipe;
} __packed;
#define NFC_HCI_FRAGMENT 0x7f
#define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
#define HCP_MSG_GET_TYPE(header) ((header & 0xc0) >> 6)
#define HCP_MSG_GET_CMD(header) (header & 0x3f)
int nfc_hci_hcp_message_tx(struct nfc_hci_dev *hdev, u8 pipe,
u8 type, u8 instruction,
const u8 *payload, size_t payload_len,
hci_cmd_cb_t cb, void *cb_data,
unsigned long completion_delay);
u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe);
void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
u8 instruction, struct sk_buff *skb);
/* HCP headers */
#define NFC_HCI_HCP_PACKET_HEADER_LEN 1
#define NFC_HCI_HCP_MESSAGE_HEADER_LEN 1
#define NFC_HCI_HCP_HEADER_LEN 2
/* HCP types */
#define NFC_HCI_HCP_COMMAND 0x00
#define NFC_HCI_HCP_EVENT 0x01
#define NFC_HCI_HCP_RESPONSE 0x02
/* Generic commands */
#define NFC_HCI_ANY_SET_PARAMETER 0x01
#define NFC_HCI_ANY_GET_PARAMETER 0x02
#define NFC_HCI_ANY_OPEN_PIPE 0x03
#define NFC_HCI_ANY_CLOSE_PIPE 0x04
/* Reader RF commands */
#define NFC_HCI_WR_XCHG_DATA 0x10
/* Admin commands */
#define NFC_HCI_ADM_CREATE_PIPE 0x10
#define NFC_HCI_ADM_DELETE_PIPE 0x11
#define NFC_HCI_ADM_NOTIFY_PIPE_CREATED 0x12
#define NFC_HCI_ADM_NOTIFY_PIPE_DELETED 0x13
#define NFC_HCI_ADM_CLEAR_ALL_PIPE 0x14
#define NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED 0x15
/* Generic responses */
#define NFC_HCI_ANY_OK 0x00
#define NFC_HCI_ANY_E_NOT_CONNECTED 0x01
#define NFC_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02
#define NFC_HCI_ANY_E_NOK 0x03
#define NFC_HCI_ANY_E_PIPES_FULL 0x04
#define NFC_HCI_ANY_E_REG_PAR_UNKNOWN 0x05
#define NFC_HCI_ANY_E_PIPE_NOT_OPENED 0x06
#define NFC_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07
#define NFC_HCI_ANY_E_INHIBITED 0x08
#define NFC_HCI_ANY_E_TIMEOUT 0x09
#define NFC_HCI_ANY_E_REG_ACCESS_DENIED 0x0a
#define NFC_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b
/* Pipes */
#define NFC_HCI_INVALID_PIPE 0x80
#define NFC_HCI_LINK_MGMT_PIPE 0x00
#define NFC_HCI_ADMIN_PIPE 0x01
#endif /* __LOCAL_HCI_H */
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