78 lines
2 KiB
C
78 lines
2 KiB
C
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#ifndef _BT_L2CAP_H
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#define _BT_L2CAP_H
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#define L2CAP_CID_SIGNALING 0x0001
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#define L2CAP_CID_CONNECTIONLESS_CHANNEL 0x0002
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#define L2CAP_CID_ATTRIBUTE_PROTOCOL 0x0004
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#define L2CAP_CID_SIGNALING_LE 0x0005
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#define L2CAP_CID_SECURITY_MANAGER_PROTOCOL 0x0006
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typedef enum {
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COMMAND_REJECT = 1,
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CONNECTION_REQUEST,
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CONNECTION_RESPONSE,
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CONFIGURE_REQUEST,
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CONFIGURE_RESPONSE,
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DISCONNECTION_REQUEST,
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DISCONNECTION_RESPONSE,
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ECHO_REQUEST,
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ECHO_RESPONSE,
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INFORMATION_REQUEST,
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INFORMATION_RESPONSE
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} L2CAP_SIGNALING_COMMANDS;
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typedef enum {
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PB_FIRST_NON_FLUSH = 0,
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PB_CONTINUE_FRAGMENT,
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PB_FIRST_FLUSHABLE,
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PB_COMPLETE_PDU
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} L2CAP_PB_FLAG;
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typedef enum {
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BC_NO_BROADCAST = 0,
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BC_ACTIVE_SLAVE,
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BC_PARKED_SLAVE,
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BC_RESERVED
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} L2CAP_BC_FLAG;
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// Connection result values
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#define BT_L2CAP_CON_RES_SUCCESS 0x0000
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#define BT_L2CAP_CON_RES_PENDING 0x0001
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#define BT_L2CAP_CON_RES_REFUSED_PSM 0x0002
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#define BT_L2CAP_CON_RES_REFUSED_SECURITY 0x0003
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#define BT_L2CAP_CON_RES_REFUSED_RSRC 0x0004
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#define BT_L2CAP_CON_STAT_NOINFO 0x0000
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#define BT_L2CAP_CON_STAT_AUTHEN_PENDING 0x0001
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#define BT_L2CAP_CON_STAT_AUTHOR_PENDING 0x0002
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typedef enum {
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BT_L2CAP_CON_IDLE = 0,
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BT_L2CAP_CON_CONNECTED
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} bt_l2cap_con_state_t;
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// describes the L2CAP connection
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typedef struct {
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bt_l2cap_con_state_t cstate;
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uint16_t hci_handle;
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uint16_t PSM; // PSM of this connection
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uint16_t locCID; // our local CID
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uint16_t remCID; // remote host CID
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uint16_t locMTU;
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uint16_t remMTU;
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} bt_l2cap_con_t;
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void init_l2cap(void);
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void bt_l2cap_proc_dyn_channel(const uint16_t channel, const uint16_t handle, const void *mdat, uint16_t mlen);
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uint8_t bt_l2cap_get_connected(const uint16_t channel);
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void bt_l2cap_send_channel(const uint16_t channel, const void *mdat, uint16_t mlen);
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void bt_l2cap_proc_signalling(const uint16_t handle, unsigned char *mdat, uint16_t mlen);
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void bt_l2cap_handle_connection_request(const uint16_t handle, const uint8_t ident, const uint16_t PSM, const uint16_t src_CID);
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#endif
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