btstack_util.h (bf1b35bfe3277735b5f948f7202313e4ac994877) btstack_util.h (f8fbdce0c5067e7e7edd3a29934b1f9b79c8ff2d)
1/*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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93 */
94#define DEVICE_NAME_LEN 248
95typedef uint8_t device_name_t[DEVICE_NAME_LEN+1];
96
97// packet handler
98typedef void (*btstack_packet_handler_t) (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
99
100// helper for BT little endian format
1/*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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93 */
94#define DEVICE_NAME_LEN 248
95typedef uint8_t device_name_t[DEVICE_NAME_LEN+1];
96
97// packet handler
98typedef void (*btstack_packet_handler_t) (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
99
100// helper for BT little endian format
101#define READ_BT_16( buffer, pos) ( ((uint16_t) buffer[pos]) | (((uint16_t)buffer[(pos)+1]) << 8))
102#define READ_BT_24( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[(pos)+1]) << 8) | (((uint32_t)buffer[(pos)+2]) << 16))
103#define READ_BT_32( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[(pos)+1]) << 8) | (((uint32_t)buffer[(pos)+2]) << 16) | (((uint32_t) buffer[(pos)+3])) << 24)
101#define little_endian_read_16( buffer, pos) ( ((uint16_t) buffer[pos]) | (((uint16_t)buffer[(pos)+1]) << 8))
102#define little_endian_read_24( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[(pos)+1]) << 8) | (((uint32_t)buffer[(pos)+2]) << 16))
103#define little_endian_read_32( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[(pos)+1]) << 8) | (((uint32_t)buffer[(pos)+2]) << 16) | (((uint32_t) buffer[(pos)+3])) << 24)
104
105// helper for SDP big endian format
104
105// helper for SDP big endian format
106#define READ_NET_16( buffer, pos) ( ((uint16_t) buffer[(pos)+1]) | (((uint16_t)buffer[ pos ]) << 8))
107#define READ_NET_32( buffer, pos) ( ((uint32_t) buffer[(pos)+3]) | (((uint32_t)buffer[(pos)+2]) << 8) | (((uint32_t)buffer[(pos)+1]) << 16) | (((uint32_t) buffer[pos])) << 24)
106#define big_endian_read_16( buffer, pos) ( ((uint16_t) buffer[(pos)+1]) | (((uint16_t)buffer[ pos ]) << 8))
107#define bit_endian_read_32( buffer, pos) ( ((uint32_t) buffer[(pos)+3]) | (((uint32_t)buffer[(pos)+2]) << 8) | (((uint32_t)buffer[(pos)+1]) << 16) | (((uint32_t) buffer[pos])) << 24)
108
109// HCI CMD OGF/OCF
110#define READ_CMD_OGF(buffer) (buffer[1] >> 2)
111#define READ_CMD_OCF(buffer) ((buffer[1] & 0x03) << 8 | buffer[0])
112
113// check if command complete event for given command
108
109// HCI CMD OGF/OCF
110#define READ_CMD_OGF(buffer) (buffer[1] >> 2)
111#define READ_CMD_OCF(buffer) ((buffer[1] & 0x03) << 8 | buffer[0])
112
113// check if command complete event for given command
114#define COMMAND_COMPLETE_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_COMPLETE && READ_BT_16(event,3) == cmd.opcode)
115#define COMMAND_STATUS_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_STATUS && READ_BT_16(event,4) == cmd.opcode)
114#define COMMAND_COMPLETE_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_COMPLETE && little_endian_read_16(event,3) == cmd.opcode)
115#define COMMAND_STATUS_EVENT(event,cmd) ( event[0] == HCI_EVENT_COMMAND_STATUS && little_endian_read_16(event,4) == cmd.opcode)
116
117// Code+Len=2, Pkts+Opcode=3; total=5
118#define OFFSET_OF_DATA_IN_COMMAND_COMPLETE 5
119
120// ACL Packet
116
117// Code+Len=2, Pkts+Opcode=3; total=5
118#define OFFSET_OF_DATA_IN_COMMAND_COMPLETE 5
119
120// ACL Packet
121#define READ_ACL_CONNECTION_HANDLE( buffer ) ( READ_BT_16(buffer,0) & 0x0fff)
121#define READ_ACL_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff)
122#define READ_ACL_FLAGS( buffer ) ( buffer[1] >> 4 )
122#define READ_ACL_FLAGS( buffer ) ( buffer[1] >> 4 )
123#define READ_ACL_LENGTH( buffer ) (READ_BT_16(buffer, 2))
123#define READ_ACL_LENGTH( buffer ) (little_endian_read_16(buffer, 2))
124
125// L2CAP Packet
124
125// L2CAP Packet
126#define READ_L2CAP_LENGTH(buffer) ( READ_BT_16(buffer, 4))
127#define READ_L2CAP_CHANNEL_ID(buffer) ( READ_BT_16(buffer, 6))
126#define READ_L2CAP_LENGTH(buffer) ( little_endian_read_16(buffer, 4))
127#define READ_L2CAP_CHANNEL_ID(buffer) ( little_endian_read_16(buffer, 6))
128
128
129void bt_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
130void bt_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
129void little_endian_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
130void little_endian_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
131void bt_flip_addr(bd_addr_t dest, bd_addr_t src);
132
131void bt_flip_addr(bd_addr_t dest, bd_addr_t src);
132
133void net_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
134void net_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
133void big_endian_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
134void big_endian_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
135
136// hack: compilation with the android ndk causes an error as there's a swap64 macro
137#ifdef swap64
138#undef swap64
139#endif
140
141void swapX (const uint8_t *src, uint8_t * dst, int len);
142void swap24 (const uint8_t *src, uint8_t * dst);

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136// hack: compilation with the android ndk causes an error as there's a swap64 macro
137#ifdef swap64
138#undef swap64
139#endif
140
141void swapX (const uint8_t *src, uint8_t * dst, int len);
142void swap24 (const uint8_t *src, uint8_t * dst);

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