Initial import

1 files changed, 280 insertions, 0 deletions

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
new file mode 100644
index 000000000..020a814bc
--- /dev/null
+++ b/include/net/nfc/hci.h
@@ -0,0 +1,280 @@
+/*
+ * Copyright (C) 2011  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __NET_HCI_H
+#define __NET_HCI_H
+
+#include <linux/skbuff.h>
+
+#include <net/nfc/nfc.h>
+
+struct nfc_hci_dev;
+
+struct nfc_hci_ops {
+	int (*open) (struct nfc_hci_dev *hdev);
+	void (*close) (struct nfc_hci_dev *hdev);
+	int (*load_session) (struct nfc_hci_dev *hdev);
+	int (*hci_ready) (struct nfc_hci_dev *hdev);
+	/*
+	 * xmit must always send the complete buffer before
+	 * returning. Returned result must be 0 for success
+	 * or negative for failure.
+	 */
+	int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb);
+	int (*start_poll) (struct nfc_hci_dev *hdev,
+			   u32 im_protocols, u32 tm_protocols);
+	void (*stop_poll) (struct nfc_hci_dev *hdev);
+	int (*dep_link_up)(struct nfc_hci_dev *hdev, struct nfc_target *target,
+			   u8 comm_mode, u8 *gb, size_t gb_len);
+	int (*dep_link_down)(struct nfc_hci_dev *hdev);
+	int (*target_from_gate) (struct nfc_hci_dev *hdev, u8 gate,
+				 struct nfc_target *target);
+	int (*complete_target_discovered) (struct nfc_hci_dev *hdev, u8 gate,
+					   struct nfc_target *target);
+	int (*im_transceive) (struct nfc_hci_dev *hdev,
+			      struct nfc_target *target, struct sk_buff *skb,
+			      data_exchange_cb_t cb, void *cb_context);
+	int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb);
+	int (*check_presence)(struct nfc_hci_dev *hdev,
+			      struct nfc_target *target);
+	int (*event_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
+			      struct sk_buff *skb);
+	void (*cmd_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+			    struct sk_buff *skb);
+	int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
+	int (*discover_se)(struct nfc_hci_dev *dev);
+	int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+	int (*disable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+	int (*se_io)(struct nfc_hci_dev *dev, u32 se_idx,
+		      u8 *apdu, size_t apdu_length,
+		      se_io_cb_t cb, void *cb_context);
+};
+
+/* Pipes */
+#define NFC_HCI_DO_NOT_CREATE_PIPE	0x81
+#define NFC_HCI_INVALID_PIPE	0x80
+#define NFC_HCI_INVALID_GATE	0xFF
+#define NFC_HCI_INVALID_HOST	0x80
+#define NFC_HCI_LINK_MGMT_PIPE	0x00
+#define NFC_HCI_ADMIN_PIPE	0x01
+
+struct nfc_hci_gate {
+	u8 gate;
+	u8 pipe;
+};
+
+struct nfc_hci_pipe {
+	u8 gate;
+	u8 dest_host;
+};
+
+#define NFC_HCI_MAX_CUSTOM_GATES	50
+/*
+ * According to specification 102 622 chapter 4.4 Pipes,
+ * the pipe identifier is 7 bits long.
+ */
+#define NFC_HCI_MAX_PIPES		127
+struct nfc_hci_init_data {
+	u8 gate_count;
+	struct nfc_hci_gate gates[NFC_HCI_MAX_CUSTOM_GATES];
+	char session_id[9];
+};
+
+typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
+
+#define NFC_HCI_MAX_GATES		256
+
+/*
+ * These values can be specified by a driver to indicate it requires some
+ * adaptation of the HCI standard.
+ *
+ * NFC_HCI_QUIRK_SHORT_CLEAR - send HCI_ADM_CLEAR_ALL_PIPE cmd with no params
+ */
+enum {
+	NFC_HCI_QUIRK_SHORT_CLEAR	= 0,
+};
+
+struct nfc_hci_dev {
+	struct nfc_dev *ndev;
+
+	u32 max_data_link_payload;
+
+	bool shutting_down;
+
+	struct mutex msg_tx_mutex;
+
+	struct list_head msg_tx_queue;
+
+	struct work_struct msg_tx_work;
+
+	struct timer_list cmd_timer;
+	struct hci_msg *cmd_pending_msg;
+
+	struct sk_buff_head rx_hcp_frags;
+
+	struct work_struct msg_rx_work;
+
+	struct sk_buff_head msg_rx_queue;
+
+	struct nfc_hci_ops *ops;
+
+	struct nfc_llc *llc;
+
+	struct nfc_hci_init_data init_data;
+
+	void *clientdata;
+
+	u8 gate2pipe[NFC_HCI_MAX_GATES];
+	struct nfc_hci_pipe pipes[NFC_HCI_MAX_PIPES];
+
+	u8 sw_romlib;
+	u8 sw_patch;
+	u8 sw_flashlib_major;
+	u8 sw_flashlib_minor;
+
+	u8 hw_derivative;
+	u8 hw_version;
+	u8 hw_mpw;
+	u8 hw_software;
+	u8 hw_bsid;
+
+	int async_cb_type;
+	data_exchange_cb_t async_cb;
+	void *async_cb_context;
+
+	u8 *gb;
+	size_t gb_len;
+
+	unsigned long quirks;
+};
+
+/* hci device allocation */
+struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
+					    struct nfc_hci_init_data *init_data,
+					    unsigned long quirks,
+					    u32 protocols,
+					    const char *llc_name,
+					    int tx_headroom,
+					    int tx_tailroom,
+					    int max_link_payload);
+void nfc_hci_free_device(struct nfc_hci_dev *hdev);
+
+int nfc_hci_register_device(struct nfc_hci_dev *hdev);
+void nfc_hci_unregister_device(struct nfc_hci_dev *hdev);
+
+void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata);
+void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev);
+
+void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err);
+
+int nfc_hci_result_to_errno(u8 result);
+void nfc_hci_reset_pipes(struct nfc_hci_dev *dev);
+void nfc_hci_reset_pipes_per_host(struct nfc_hci_dev *hdev, u8 host);
+
+/* Host IDs */
+#define NFC_HCI_HOST_CONTROLLER_ID	0x00
+#define NFC_HCI_TERMINAL_HOST_ID	0x01
+#define NFC_HCI_UICC_HOST_ID		0x02
+
+/* Host Controller Gates and registry indexes */
+#define NFC_HCI_ADMIN_GATE 0x00
+#define NFC_HCI_ADMIN_SESSION_IDENTITY	0x01
+#define NFC_HCI_ADMIN_MAX_PIPE		0x02
+#define NFC_HCI_ADMIN_WHITELIST		0x03
+#define NFC_HCI_ADMIN_HOST_LIST		0x04
+
+#define NFC_HCI_LOOPBACK_GATE		0x04
+
+#define NFC_HCI_ID_MGMT_GATE		0x05
+#define NFC_HCI_ID_MGMT_VERSION_SW	0x01
+#define NFC_HCI_ID_MGMT_VERSION_HW	0x03
+#define NFC_HCI_ID_MGMT_VENDOR_NAME	0x04
+#define NFC_HCI_ID_MGMT_MODEL_ID	0x05
+#define NFC_HCI_ID_MGMT_HCI_VERSION	0x02
+#define NFC_HCI_ID_MGMT_GATES_LIST	0x06
+
+#define NFC_HCI_LINK_MGMT_GATE		0x06
+#define NFC_HCI_LINK_MGMT_REC_ERROR	0x01
+
+#define NFC_HCI_RF_READER_B_GATE			0x11
+#define NFC_HCI_RF_READER_B_PUPI			0x03
+#define NFC_HCI_RF_READER_B_APPLICATION_DATA		0x04
+#define NFC_HCI_RF_READER_B_AFI				0x02
+#define NFC_HCI_RF_READER_B_HIGHER_LAYER_RESPONSE	0x01
+#define NFC_HCI_RF_READER_B_HIGHER_LAYER_DATA		0x05
+
+#define NFC_HCI_RF_READER_A_GATE		0x13
+#define NFC_HCI_RF_READER_A_UID			0x02
+#define NFC_HCI_RF_READER_A_ATQA		0x04
+#define NFC_HCI_RF_READER_A_APPLICATION_DATA	0x05
+#define NFC_HCI_RF_READER_A_SAK			0x03
+#define NFC_HCI_RF_READER_A_FWI_SFGT		0x06
+#define NFC_HCI_RF_READER_A_DATARATE_MAX	0x01
+
+#define NFC_HCI_TYPE_A_SEL_PROT(x)		(((x) & 0x60) >> 5)
+#define NFC_HCI_TYPE_A_SEL_PROT_MIFARE		0
+#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443	1
+#define NFC_HCI_TYPE_A_SEL_PROT_DEP		2
+#define NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP	3
+
+/* Generic events */
+#define NFC_HCI_EVT_HCI_END_OF_OPERATION	0x01
+#define NFC_HCI_EVT_POST_DATA			0x02
+#define NFC_HCI_EVT_HOT_PLUG			0x03
+
+/* 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 gates events */
+#define NFC_HCI_EVT_READER_REQUESTED	0x10
+#define NFC_HCI_EVT_END_OPERATION	0x11
+
+/* Reader Application gate events */
+#define NFC_HCI_EVT_TARGET_DISCOVERED	0x10
+
+/* receiving messages from lower layer */
+void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result,
+			   struct sk_buff *skb);
+void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+			  struct sk_buff *skb);
+void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
+			    struct sk_buff *skb);
+void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb);
+
+/* connecting to gates and sending hci instructions */
+int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
+			 u8 pipe);
+int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate);
+int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev);
+int nfc_hci_get_param(struct nfc_hci_dev *hdev, u8 gate, u8 idx,
+		      struct sk_buff **skb);
+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_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
+		       const u8 *param, size_t param_len);
+int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
+u32 nfc_hci_sak_to_protocol(u8 sak);
+
+#endif /* __NET_HCI_H */