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l2cap_signaling: caller provides packet boundary flags

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This commit is contained in:
Matthias Ringwald 2021-10-27 16:08:42 +02:00
parent 1d3f7785eb
commit 06a2657984
1 changed files with 6 additions and 13 deletions
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19
src/l2cap_signaling.c
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@ -50,7 +50,7 @@
#include <string.h>
static uint16_t l2cap_create_signaling_internal(uint8_t * acl_buffer, hci_con_handle_t handle, bool is_classic, uint16_t cid, L2CAP_SIGNALING_COMMANDS cmd, uint8_t identifier, va_list argptr){
static uint16_t l2cap_create_signaling_internal(uint8_t * acl_buffer, hci_con_handle_t handle, uint8_t pb_flags, uint16_t cid, L2CAP_SIGNALING_COMMANDS cmd, uint8_t identifier, va_list argptr){
static const char *l2cap_signaling_commands_format[] = {
"2D", // 0x01 command reject: reason {cmd not understood (0), sig MTU exceeded (2:max sig MTU), invalid CID (4:req CID)}, data len, data
@ -94,17 +94,8 @@ static uint16_t l2cap_create_signaling_internal(uint8_t * acl_buffer, hci_con_ha
return 0;
}
int pb = 0x00; // First non-automatically-flushable packet of a higher layer message
#ifdef ENABLE_CLASSIC
if (is_classic){
pb = hci_non_flushable_packet_boundary_flag_supported() ? 0x00 : 0x02;
}
#else
UNUSED(is_classic);
#endif
// 0 - Connection handle : PB=pb : BC=00
little_endian_store_16(acl_buffer, 0u, handle | (pb << 12u) | (0u << 14u));
little_endian_store_16(acl_buffer, 0u, handle | (pb_flags << 12u) | (0u << 14u));
// 6 - L2CAP channel = 1
little_endian_store_16(acl_buffer, 6, cid);
// 8 - Code
@ -162,12 +153,14 @@ static uint16_t l2cap_create_signaling_internal(uint8_t * acl_buffer, hci_con_ha
#ifdef ENABLE_CLASSIC
uint16_t l2cap_create_signaling_classic(uint8_t * acl_buffer, hci_con_handle_t handle, L2CAP_SIGNALING_COMMANDS cmd, uint8_t identifier, va_list argptr){
return l2cap_create_signaling_internal(acl_buffer, handle, true, 1, cmd, identifier, argptr);
uint8_t pb_flags = hci_non_flushable_packet_boundary_flag_supported() ? 0x00 : 0x02;
return l2cap_create_signaling_internal(acl_buffer, handle, pb_flags, L2CAP_CID_SIGNALING, cmd, identifier, argptr);
}
#endif
#ifdef ENABLE_BLE
uint16_t l2cap_create_signaling_le(uint8_t * acl_buffer, hci_con_handle_t handle, L2CAP_SIGNALING_COMMANDS cmd, uint8_t identifier, va_list argptr){
return l2cap_create_signaling_internal(acl_buffer, handle, false, 5, cmd, identifier, argptr);
uint8_t pb_flags = 0x00; // First non-automatically-flushable packet of a higher layer message
return l2cap_create_signaling_internal(acl_buffer, handle, pb_flags, L2CAP_CID_SIGNALING_LE, cmd, identifier, argptr);
}
#endif