11#ifndef ZEPHYR_INCLUDE_BLUETOOTH_BUF_H_
12#define ZEPHYR_INCLUDE_BLUETOOTH_BUF_H_
55#define BT_BUF_RESERVE 1
58#define BT_BUF_SIZE(size) (BT_BUF_RESERVE + (size))
61#define BT_BUF_ACL_SIZE(size) BT_BUF_SIZE(BT_HCI_ACL_HDR_SIZE + (size))
64#define BT_BUF_EVT_SIZE(size) BT_BUF_SIZE(BT_HCI_EVT_HDR_SIZE + (size))
67#define BT_BUF_CMD_SIZE(size) BT_BUF_SIZE(BT_HCI_CMD_HDR_SIZE + (size))
70#define BT_BUF_ISO_SIZE(size) BT_BUF_SIZE(BT_HCI_ISO_HDR_SIZE + \
71 BT_HCI_ISO_SDU_TS_HDR_SIZE + \
75#define BT_BUF_ACL_RX_SIZE BT_BUF_ACL_SIZE(CONFIG_BT_BUF_ACL_RX_SIZE)
78#define BT_BUF_EVT_RX_SIZE BT_BUF_EVT_SIZE(CONFIG_BT_BUF_EVT_RX_SIZE)
80#if defined(CONFIG_BT_ISO)
81#define BT_BUF_ISO_RX_SIZE BT_BUF_ISO_SIZE(CONFIG_BT_ISO_RX_MTU)
82#define BT_BUF_ISO_RX_COUNT CONFIG_BT_ISO_RX_BUF_COUNT
84#define BT_BUF_ISO_RX_SIZE 0
85#define BT_BUF_ISO_RX_COUNT 0
89#define BT_BUF_ACL_RX_COUNT_MAX 65535
91#if defined(CONFIG_BT_CONN) && defined(CONFIG_BT_HCI_HOST)
102#define BT_BUF_ACL_RX_COUNT \
103 (MAX(CONFIG_BT_BUF_ACL_RX_COUNT, (CONFIG_BT_MAX_CONN + 1)) + \
104 CONFIG_BT_BUF_ACL_RX_COUNT_EXTRA)
106#define BT_BUF_ACL_RX_COUNT 0
109#if defined(CONFIG_BT_BUF_ACL_RX_COUNT) && CONFIG_BT_BUF_ACL_RX_COUNT > 0
110#warning "CONFIG_BT_BUF_ACL_RX_COUNT is deprecated, see Zephyr 4.1 migration guide"
114 "Maximum number of ACL RX buffer is 65535, reduce CONFIG_BT_BUF_ACL_RX_COUNT_EXTRA");
117#define BT_BUF_RX_SIZE (MAX(MAX(BT_BUF_ACL_RX_SIZE, BT_BUF_EVT_RX_SIZE), \
121#define BT_BUF_RX_COUNT (MAX(MAX(CONFIG_BT_BUF_EVT_RX_COUNT, \
122 BT_BUF_ACL_RX_COUNT), \
123 BT_BUF_ISO_RX_COUNT))
126#define BT_BUF_CMD_TX_SIZE BT_BUF_CMD_SIZE(CONFIG_BT_BUF_CMD_TX_SIZE)
#define BT_BUF_ACL_RX_COUNT
Definition buf.h:106
static enum bt_buf_type bt_buf_get_type(struct net_buf *buf)
Get the buffer type.
Definition buf.h:207
struct net_buf * bt_buf_get_rx(enum bt_buf_type type, k_timeout_t timeout)
Allocate a buffer for incoming data.
struct net_buf * bt_buf_get_tx(enum bt_buf_type type, k_timeout_t timeout, const void *data, size_t size)
Allocate a buffer for outgoing data.
struct net_buf * bt_buf_get_evt(uint8_t evt, bool discardable, k_timeout_t timeout)
Allocate a buffer for an HCI Event.
#define BT_BUF_ACL_RX_COUNT_MAX
Definition buf.h:89
static void bt_buf_set_type(struct net_buf *buf, enum bt_buf_type type)
Set the buffer type.
Definition buf.h:196
void(* bt_buf_rx_freed_cb_t)(enum bt_buf_type type_mask)
A callback to notify about freed buffer in the incoming data pool.
Definition buf.h:153
void bt_buf_rx_freed_cb_set(bt_buf_rx_freed_cb_t cb)
Set the callback to notify about freed buffer in the incoming data pool.
bt_buf_type
Possible types of buffers passed around the Bluetooth stack in a form of bitmask.
Definition buf.h:32
@ BT_BUF_EVT
HCI event.
Definition buf.h:36
@ BT_BUF_ISO_OUT
Outgoing ISO data.
Definition buf.h:42
@ BT_BUF_ACL_OUT
Outgoing ACL data.
Definition buf.h:38
@ BT_BUF_ISO_IN
Incoming ISO data.
Definition buf.h:44
@ BT_BUF_CMD
HCI command.
Definition buf.h:34
@ BT_BUF_H4
H:4 data.
Definition buf.h:46
@ BT_BUF_ACL_IN
Incoming ACL data.
Definition buf.h:40
static void * net_buf_user_data(const struct net_buf *buf)
Get a pointer to the user data of a buffer.
Definition net_buf.h:1576
#define BIT(n)
Unsigned integer with bit position n set (signed in assembly language).
Definition util_macro.h:44
__UINT8_TYPE__ uint8_t
Definition stdint.h:88
This is a base type for bt_buf user data.
Definition buf.h:50
uint8_t type
Definition buf.h:51
Kernel timeout type.
Definition sys_clock.h:65
Network buffer representation.
Definition net_buf.h:1006
uint16_t size
Amount of data that this buffer can store.
Definition net_buf.h:1038
uint8_t * data
Pointer to the start of data in the buffer.
Definition net_buf.h:1032