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add check for minimal hci_acl_payload_size

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matthias.ringwald 2011-07-30 15:53:10 +00:00
parent c165515e5d
commit 23f5e709c0
1 changed files with 12 additions and 0 deletions
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12
src/l2cap.h
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@ -52,6 +52,18 @@ extern "C" {
#define L2CAP_HEADER_SIZE 4
// size of HCI ACL + L2CAP Header for regular data packets (8)
#define COMPLETE_L2CAP_HEADER (HCI_ACL_HEADER_SIZE + L2CAP_HEADER_SIZE)
// minimum signaling MTU
#define L2CAP_MINIMAL_MTU 48
#define L2CAP_DEFAULT_MTU 672
// check L2CAP MTU
#if (L2CAP_MINIMAL_MTU + COMPLETE_L2CAP_HEADER) < HCI_PACKET_BUFFER_SIZE
#warning "HCI_ACL_PAYLOAD_SIZE too small for minimal L2CAP MTU of 48 bytes"
#endif
void l2cap_init(void);
void l2cap_register_packet_handler(void (*handler)(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size));
void l2cap_create_channel_internal(void * connection, btstack_packet_handler_t packet_handler, bd_addr_t address, uint16_t psm, uint16_t mtu);