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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /include/net/nfc/nci_core.h
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'include/net/nfc/nci_core.h')
-rw-r--r--include/net/nfc/nci_core.h465
1 files changed, 465 insertions, 0 deletions
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
new file mode 100644
index 000000000..ea8595651
--- /dev/null
+++ b/include/net/nfc/nci_core.h
@@ -0,0 +1,465 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * The NFC Controller Interface is the communication protocol between an
+ * NFC Controller (NFCC) and a Device Host (DH).
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ * Copyright (C) 2014 Marvell International Ltd.
+ *
+ * Written by Ilan Elias <ilane@ti.com>
+ *
+ * Acknowledgements:
+ * This file is based on hci_core.h, which was written
+ * by Maxim Krasnyansky.
+ */
+
+#ifndef __NCI_CORE_H
+#define __NCI_CORE_H
+
+#include <linux/interrupt.h>
+#include <linux/skbuff.h>
+#include <linux/tty.h>
+
+#include <net/nfc/nfc.h>
+#include <net/nfc/nci.h>
+
+/* NCI device flags */
+enum nci_flag {
+ NCI_INIT,
+ NCI_UP,
+ NCI_DATA_EXCHANGE,
+ NCI_DATA_EXCHANGE_TO,
+ NCI_UNREG,
+};
+
+/* NCI device states */
+enum nci_state {
+ NCI_IDLE,
+ NCI_DISCOVERY,
+ NCI_W4_ALL_DISCOVERIES,
+ NCI_W4_HOST_SELECT,
+ NCI_POLL_ACTIVE,
+ NCI_LISTEN_ACTIVE,
+ NCI_LISTEN_SLEEP,
+};
+
+/* NCI timeouts */
+#define NCI_RESET_TIMEOUT 5000
+#define NCI_INIT_TIMEOUT 5000
+#define NCI_SET_CONFIG_TIMEOUT 5000
+#define NCI_RF_DISC_TIMEOUT 5000
+#define NCI_RF_DISC_SELECT_TIMEOUT 5000
+#define NCI_RF_DEACTIVATE_TIMEOUT 30000
+#define NCI_CMD_TIMEOUT 5000
+#define NCI_DATA_TIMEOUT 700
+
+struct nci_dev;
+
+struct nci_driver_ops {
+ __u16 opcode;
+ int (*rsp)(struct nci_dev *dev, struct sk_buff *skb);
+ int (*ntf)(struct nci_dev *dev, struct sk_buff *skb);
+};
+
+struct nci_ops {
+ int (*init)(struct nci_dev *ndev);
+ int (*open)(struct nci_dev *ndev);
+ int (*close)(struct nci_dev *ndev);
+ int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
+ int (*setup)(struct nci_dev *ndev);
+ int (*post_setup)(struct nci_dev *ndev);
+ int (*fw_download)(struct nci_dev *ndev, const char *firmware_name);
+ __u32 (*get_rfprotocol)(struct nci_dev *ndev, __u8 rf_protocol);
+ int (*discover_se)(struct nci_dev *ndev);
+ int (*disable_se)(struct nci_dev *ndev, u32 se_idx);
+ int (*enable_se)(struct nci_dev *ndev, u32 se_idx);
+ int (*se_io)(struct nci_dev *ndev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context);
+ int (*hci_load_session)(struct nci_dev *ndev);
+ void (*hci_event_received)(struct nci_dev *ndev, u8 pipe, u8 event,
+ struct sk_buff *skb);
+ void (*hci_cmd_received)(struct nci_dev *ndev, u8 pipe, u8 cmd,
+ struct sk_buff *skb);
+
+ const struct nci_driver_ops *prop_ops;
+ size_t n_prop_ops;
+
+ const struct nci_driver_ops *core_ops;
+ size_t n_core_ops;
+};
+
+#define NCI_MAX_SUPPORTED_RF_INTERFACES 4
+#define NCI_MAX_DISCOVERED_TARGETS 10
+#define NCI_MAX_NUM_NFCEE 255
+#define NCI_MAX_CONN_ID 7
+#define NCI_MAX_PROPRIETARY_CMD 64
+
+struct nci_conn_info {
+ struct list_head list;
+ /* NCI specification 4.4.2 Connection Creation
+ * The combination of destination type and destination specific
+ * parameters shall uniquely identify a single destination for the
+ * Logical Connection
+ */
+ struct dest_spec_params *dest_params;
+ __u8 dest_type;
+ __u8 conn_id;
+ __u8 max_pkt_payload_len;
+
+ atomic_t credits_cnt;
+ __u8 initial_num_credits;
+
+ data_exchange_cb_t data_exchange_cb;
+ void *data_exchange_cb_context;
+
+ struct sk_buff *rx_skb;
+};
+
+#define NCI_INVALID_CONN_ID 0x80
+
+#define NCI_HCI_ANY_OPEN_PIPE 0x03
+
+/* Gates */
+#define NCI_HCI_ADMIN_GATE 0x00
+#define NCI_HCI_LOOPBACK_GATE 0x04
+#define NCI_HCI_IDENTITY_MGMT_GATE 0x05
+#define NCI_HCI_LINK_MGMT_GATE 0x06
+
+/* Pipes */
+#define NCI_HCI_LINK_MGMT_PIPE 0x00
+#define NCI_HCI_ADMIN_PIPE 0x01
+
+/* Generic responses */
+#define NCI_HCI_ANY_OK 0x00
+#define NCI_HCI_ANY_E_NOT_CONNECTED 0x01
+#define NCI_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02
+#define NCI_HCI_ANY_E_NOK 0x03
+#define NCI_HCI_ANY_E_PIPES_FULL 0x04
+#define NCI_HCI_ANY_E_REG_PAR_UNKNOWN 0x05
+#define NCI_HCI_ANY_E_PIPE_NOT_OPENED 0x06
+#define NCI_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07
+#define NCI_HCI_ANY_E_INHIBITED 0x08
+#define NCI_HCI_ANY_E_TIMEOUT 0x09
+#define NCI_HCI_ANY_E_REG_ACCESS_DENIED 0x0a
+#define NCI_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b
+
+#define NCI_HCI_DO_NOT_OPEN_PIPE 0x81
+#define NCI_HCI_INVALID_PIPE 0x80
+#define NCI_HCI_INVALID_GATE 0xFF
+#define NCI_HCI_INVALID_HOST 0x80
+
+#define NCI_HCI_MAX_CUSTOM_GATES 50
+/*
+ * According to specification 102 622 chapter 4.4 Pipes,
+ * the pipe identifier is 7 bits long.
+ */
+#define NCI_HCI_MAX_PIPES 128
+
+struct nci_hci_gate {
+ u8 gate;
+ u8 pipe;
+ u8 dest_host;
+} __packed;
+
+struct nci_hci_pipe {
+ u8 gate;
+ u8 host;
+} __packed;
+
+struct nci_hci_init_data {
+ u8 gate_count;
+ struct nci_hci_gate gates[NCI_HCI_MAX_CUSTOM_GATES];
+ char session_id[9];
+};
+
+#define NCI_HCI_MAX_GATES 256
+
+struct nci_hci_dev {
+ u8 nfcee_id;
+ struct nci_dev *ndev;
+ struct nci_conn_info *conn_info;
+
+ struct nci_hci_init_data init_data;
+ struct nci_hci_pipe pipes[NCI_HCI_MAX_PIPES];
+ u8 gate2pipe[NCI_HCI_MAX_GATES];
+ int expected_pipes;
+ int count_pipes;
+
+ struct sk_buff_head rx_hcp_frags;
+ struct work_struct msg_rx_work;
+ struct sk_buff_head msg_rx_queue;
+};
+
+/* NCI Core structures */
+struct nci_dev {
+ struct nfc_dev *nfc_dev;
+ const struct nci_ops *ops;
+ struct nci_hci_dev *hci_dev;
+
+ int tx_headroom;
+ int tx_tailroom;
+
+ atomic_t state;
+ unsigned long flags;
+
+ atomic_t cmd_cnt;
+ __u8 cur_conn_id;
+
+ struct list_head conn_info_list;
+ struct nci_conn_info *rf_conn_info;
+
+ struct timer_list cmd_timer;
+ struct timer_list data_timer;
+
+ struct workqueue_struct *cmd_wq;
+ struct work_struct cmd_work;
+
+ struct workqueue_struct *rx_wq;
+ struct work_struct rx_work;
+
+ struct workqueue_struct *tx_wq;
+ struct work_struct tx_work;
+
+ struct sk_buff_head cmd_q;
+ struct sk_buff_head rx_q;
+ struct sk_buff_head tx_q;
+
+ struct mutex req_lock;
+ struct completion req_completion;
+ __u32 req_status;
+ __u32 req_result;
+
+ void *driver_data;
+
+ __u32 poll_prots;
+ __u32 target_active_prot;
+
+ struct nfc_target targets[NCI_MAX_DISCOVERED_TARGETS];
+ int n_targets;
+
+ /* received during NCI_OP_CORE_RESET_RSP */
+ __u8 nci_ver;
+
+ /* received during NCI_OP_CORE_INIT_RSP */
+ __u32 nfcc_features;
+ __u8 num_supported_rf_interfaces;
+ __u8 supported_rf_interfaces
+ [NCI_MAX_SUPPORTED_RF_INTERFACES];
+ __u8 max_logical_connections;
+ __u16 max_routing_table_size;
+ __u8 max_ctrl_pkt_payload_len;
+ __u16 max_size_for_large_params;
+ __u8 manufact_id;
+ __u32 manufact_specific_info;
+
+ /* Save RF Discovery ID or NFCEE ID under conn_create */
+ struct dest_spec_params cur_params;
+ /* Save destination type under conn_create */
+ __u8 cur_dest_type;
+
+ /* stored during nci_data_exchange */
+ struct sk_buff *rx_data_reassembly;
+
+ /* stored during intf_activated_ntf */
+ __u8 remote_gb[NFC_MAX_GT_LEN];
+ __u8 remote_gb_len;
+};
+
+/* ----- NCI Devices ----- */
+struct nci_dev *nci_allocate_device(const struct nci_ops *ops,
+ __u32 supported_protocols,
+ int tx_headroom,
+ int tx_tailroom);
+void nci_free_device(struct nci_dev *ndev);
+int nci_register_device(struct nci_dev *ndev);
+void nci_unregister_device(struct nci_dev *ndev);
+int nci_request(struct nci_dev *ndev,
+ void (*req)(struct nci_dev *ndev,
+ const void *opt),
+ const void *opt, __u32 timeout);
+int nci_prop_cmd(struct nci_dev *ndev, __u8 oid, size_t len,
+ const __u8 *payload);
+int nci_core_cmd(struct nci_dev *ndev, __u16 opcode, size_t len,
+ const __u8 *payload);
+int nci_core_reset(struct nci_dev *ndev);
+int nci_core_init(struct nci_dev *ndev);
+
+int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, const __u8 *val);
+
+int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
+int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode);
+int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type,
+ u8 number_destination_params,
+ size_t params_len,
+ const struct core_conn_create_dest_spec_params *params);
+int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id);
+int nci_nfcc_loopback(struct nci_dev *ndev, const void *data, size_t data_len,
+ struct sk_buff **resp);
+
+struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev);
+void nci_hci_deallocate(struct nci_dev *ndev);
+int nci_hci_send_event(struct nci_dev *ndev, u8 gate, u8 event,
+ const u8 *param, size_t param_len);
+int nci_hci_send_cmd(struct nci_dev *ndev, u8 gate,
+ u8 cmd, const u8 *param, size_t param_len,
+ struct sk_buff **skb);
+int nci_hci_open_pipe(struct nci_dev *ndev, u8 pipe);
+int nci_hci_connect_gate(struct nci_dev *ndev, u8 dest_host,
+ u8 dest_gate, u8 pipe);
+int nci_hci_set_param(struct nci_dev *ndev, u8 gate, u8 idx,
+ const u8 *param, size_t param_len);
+int nci_hci_get_param(struct nci_dev *ndev, u8 gate, u8 idx,
+ struct sk_buff **skb);
+int nci_hci_clear_all_pipes(struct nci_dev *ndev);
+int nci_hci_dev_session_init(struct nci_dev *ndev);
+
+static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
+ unsigned int len,
+ gfp_t how)
+{
+ struct sk_buff *skb;
+
+ skb = alloc_skb(len + ndev->tx_headroom + ndev->tx_tailroom, how);
+ if (skb)
+ skb_reserve(skb, ndev->tx_headroom);
+
+ return skb;
+}
+
+static inline void nci_set_parent_dev(struct nci_dev *ndev, struct device *dev)
+{
+ nfc_set_parent_dev(ndev->nfc_dev, dev);
+}
+
+static inline void nci_set_drvdata(struct nci_dev *ndev, void *data)
+{
+ ndev->driver_data = data;
+}
+
+static inline void *nci_get_drvdata(struct nci_dev *ndev)
+{
+ return ndev->driver_data;
+}
+
+static inline int nci_set_vendor_cmds(struct nci_dev *ndev,
+ const struct nfc_vendor_cmd *cmds,
+ int n_cmds)
+{
+ return nfc_set_vendor_cmds(ndev->nfc_dev, cmds, n_cmds);
+}
+
+void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb);
+void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb);
+int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb);
+int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb);
+int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+ struct sk_buff *skb);
+void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
+int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, const void *payload);
+int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
+int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id);
+void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
+ __u8 conn_id, int err);
+void nci_hci_data_received_cb(void *context, struct sk_buff *skb, int err);
+
+void nci_clear_target_list(struct nci_dev *ndev);
+
+/* ----- NCI requests ----- */
+#define NCI_REQ_DONE 0
+#define NCI_REQ_PEND 1
+#define NCI_REQ_CANCELED 2
+
+void nci_req_complete(struct nci_dev *ndev, int result);
+struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev,
+ int conn_id);
+int nci_get_conn_info_by_dest_type_params(struct nci_dev *ndev, u8 dest_type,
+ const struct dest_spec_params *params);
+
+/* ----- NCI status code ----- */
+int nci_to_errno(__u8 code);
+
+/* ----- NCI over SPI acknowledge modes ----- */
+#define NCI_SPI_CRC_DISABLED 0x00
+#define NCI_SPI_CRC_ENABLED 0x01
+
+/* ----- NCI SPI structures ----- */
+struct nci_spi {
+ struct nci_dev *ndev;
+ struct spi_device *spi;
+
+ unsigned int xfer_udelay; /* microseconds delay between
+ transactions */
+
+ unsigned int xfer_speed_hz; /*
+ * SPI clock frequency
+ * 0 => default clock
+ */
+
+ u8 acknowledge_mode;
+
+ struct completion req_completion;
+ u8 req_result;
+};
+
+/* ----- NCI SPI ----- */
+struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
+ u8 acknowledge_mode, unsigned int delay,
+ struct nci_dev *ndev);
+int nci_spi_send(struct nci_spi *nspi,
+ struct completion *write_handshake_completion,
+ struct sk_buff *skb);
+struct sk_buff *nci_spi_read(struct nci_spi *nspi);
+
+/* ----- NCI UART ---- */
+
+/* Ioctl */
+#define NCIUARTSETDRIVER _IOW('U', 0, char *)
+
+enum nci_uart_driver {
+ NCI_UART_DRIVER_MARVELL = 0,
+ NCI_UART_DRIVER_MAX
+};
+
+struct nci_uart;
+
+struct nci_uart_ops {
+ int (*open)(struct nci_uart *nci_uart);
+ void (*close)(struct nci_uart *nci_uart);
+ int (*recv)(struct nci_uart *nci_uart, struct sk_buff *skb);
+ int (*send)(struct nci_uart *nci_uart, struct sk_buff *skb);
+ void (*tx_start)(struct nci_uart *nci_uart);
+ void (*tx_done)(struct nci_uart *nci_uart);
+};
+
+struct nci_uart {
+ struct module *owner;
+ struct nci_uart_ops ops;
+ const char *name;
+ enum nci_uart_driver driver;
+
+ /* Dynamic data */
+ struct nci_dev *ndev;
+ spinlock_t rx_lock;
+ struct work_struct write_work;
+ struct tty_struct *tty;
+ unsigned long tx_state;
+ struct sk_buff_head tx_q;
+ struct sk_buff *tx_skb;
+ struct sk_buff *rx_skb;
+ int rx_packet_len;
+ void *drv_data;
+};
+
+int nci_uart_register(struct nci_uart *nu);
+void nci_uart_unregister(struct nci_uart *nu);
+void nci_uart_set_config(struct nci_uart *nu, int baudrate, int flow_ctrl);
+
+#endif /* __NCI_CORE_H */