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net/nimble; add HCI transport which has Linux bluetooth socket,

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or TCP socket as it's target.

X-Original-Commit: 9fcbd0d0d5d45b4495a93f71fe17b23d7761e44f
This commit is contained in:
Marko Kiiskila
2017-04-04 09:40:55 -07:00
parent d64f4a4d9f
commit 53c595dc08
4 changed files with 935 additions and 0 deletions
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nimble/transport/socket/include/socket/ble_hci_socket.h
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef _BLE_HCI_SOCKET_H_
#define _BLE_HCI_SOCKET_H_
#ifdef __cplusplus
extern "C" {
#endif
struct os_eventq;
void ble_hci_sock_set_evq(struct os_eventq *);
#ifdef __cplusplus
}
#endif
#endif
nimble/transport/socket/pkg.yml
+38
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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
pkg.name: net/nimble/transport/socket
pkg.description: Provides HCI transport over socket interface
pkg.author: "Apache Mynewt <[email protected]>"
pkg.homepage: "http://mynewt.apache.org/"
pkg.keywords:
- ble
- bluetooth
pkg.deps:
- hw/hal
- kernel/os
- net/nimble
- util/mem
pkg.apis:
- ble_transport
pkg.init:
ble_hci_sock_init: 500
nimble/transport/socket/src/ble_hci_socket.c
Executable
+797
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Provides HCI transport over sockets. Either over
* TCP sockets, or Linux bluetooth socket.
*
* E.g. to connect to TCP target, start in another window
* socat -x PIPE:/dev/ttyACM1 TCP4-LISTEN:14433,fork,reuseaddr
* When building this package, set BLE_SOCK_USE_TCP=1 and
* BLE_SOCK_TCP_PORT controls the target port this transport
* connects to.
*
* To use Linux Bluetooth sockets, create an interface:
* sudo hciattach -r -n /dev/ttyUSB0 any 57600
* And build this package with BLE_SOCK_USE_LINUX_BLUE=1,
* BLE_SOCK_LINUX_DEV=<interface index of the target interface>
*
*/
#include "syscfg/syscfg.h"
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <sys/socket.h>
#if MYNEWT_VAL(BLE_SOCK_USE_TCP)
#include <sys/errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#if MYNEWT_VAL(BLE_SOCK_USE_LINUX_BLUE)
#include <sys/errno.h>
#define BTPROTO_HCI 1
#define HCI_CHANNEL_RAW 0
#define HCI_CHANNEL_USER 1
#define HCIDEVUP _IOW('H', 201, int)
#define HCIGETDEVLIST _IOR('H', 210, int)
struct sockaddr_hci {
sa_family_t hci_family;
unsigned short hci_dev;
unsigned short hci_channel;
};
#endif
#include <fcntl.h>
#include <sys/ioctl.h>
#include "sysinit/sysinit.h"
#include "os/os.h"
#include "mem/mem.h"
#include "stats/stats.h"
/* BLE */
#include "nimble/ble.h"
#include "nimble/nimble_opt.h"
#include "nimble/hci_common.h"
#include "nimble/ble_hci_trans.h"
#include "socket/ble_hci_socket.h"
/***
* NOTES:
* The UART HCI transport doesn't use event buffer priorities. All incoming
* and outgoing events use buffers from the same pool.
*
* The "skip" definitions are here so that when buffers cannot be allocated,
* the command or acl packets are simply skipped so that the HCI interface
* does not lose synchronization and resets dont (necessarily) occur.
*/
STATS_SECT_START(hci_sock_stats)
STATS_SECT_ENTRY(imsg)
STATS_SECT_ENTRY(icmd)
STATS_SECT_ENTRY(ievt)
STATS_SECT_ENTRY(iacl)
STATS_SECT_ENTRY(ibytes)
STATS_SECT_ENTRY(ierr)
STATS_SECT_ENTRY(imem)
STATS_SECT_ENTRY(omsg)
STATS_SECT_ENTRY(oacl)
STATS_SECT_ENTRY(ocmd)
STATS_SECT_ENTRY(oevt)
STATS_SECT_ENTRY(obytes)
STATS_SECT_ENTRY(oerr)
STATS_SECT_END
STATS_SECT_DECL(hci_sock_stats) hci_sock_stats;
STATS_NAME_START(hci_sock_stats)
STATS_NAME(hci_sock_stats, imsg)
STATS_NAME(hci_sock_stats, icmd)
STATS_NAME(hci_sock_stats, ievt)
STATS_NAME(hci_sock_stats, iacl)
STATS_NAME(hci_sock_stats, ibytes)
STATS_NAME(hci_sock_stats, ierr)
STATS_NAME(hci_sock_stats, imem)
STATS_NAME(hci_sock_stats, omsg)
STATS_NAME(hci_sock_stats, oacl)
STATS_NAME(hci_sock_stats, ocmd)
STATS_NAME(hci_sock_stats, oevt)
STATS_NAME(hci_sock_stats, obytes)
STATS_NAME(hci_sock_stats, oerr)
STATS_NAME_END(hci_sock_stats)
/***
* NOTES:
* The "skip" definitions are here so that when buffers cannot be allocated,
* the command or acl packets are simply skipped so that the HCI interface
* does not lose synchronization and resets dont (necessarily) occur.
*/
#define BLE_HCI_UART_H4_NONE 0x00
#define BLE_HCI_UART_H4_CMD 0x01
#define BLE_HCI_UART_H4_ACL 0x02
#define BLE_HCI_UART_H4_SCO 0x03
#define BLE_HCI_UART_H4_EVT 0x04
#define BLE_HCI_UART_H4_SYNC_LOSS 0x80
#define BLE_HCI_UART_H4_SKIP_CMD 0x81
#define BLE_HCI_UART_H4_SKIP_ACL 0x82
static struct os_mempool ble_hci_sock_evt_hi_pool;
static void *ble_hci_sock_evt_hi_buf;
static struct os_mempool ble_hci_sock_evt_lo_pool;
static void *ble_hci_sock_evt_lo_buf;
static struct os_mempool ble_hci_sock_cmd_pool;
static void *ble_hci_sock_cmd_buf;
static struct os_mbuf_pool ble_hci_sock_acl_mbuf_pool;
static struct os_mempool ble_hci_sock_acl_pool;
static void *ble_hci_sock_acl_buf;
static ble_hci_trans_rx_cmd_fn *ble_hci_sock_rx_cmd_cb;
static void *ble_hci_sock_rx_cmd_arg;
static ble_hci_trans_rx_acl_fn *ble_hci_sock_rx_acl_cb;
static void *ble_hci_sock_rx_acl_arg;
static struct ble_hci_sock_state {
int sock;
struct os_eventq *evq;
struct os_event ev;
struct os_callout timer;
uint8_t rx_off;
uint8_t rx_data[512];
} ble_hci_sock_state;
/**
* Allocates a buffer (mbuf) for ACL operation.
*
* @return The allocated buffer on success;
* NULL on buffer exhaustion.
*/
static struct os_mbuf *
ble_hci_trans_acl_buf_alloc(void)
{
struct os_mbuf *m;
/*
* XXX: note that for host only there would be no need to allocate
* a user header. Address this later.
*/
m = os_mbuf_get_pkthdr(&ble_hci_sock_acl_mbuf_pool,
sizeof(struct ble_mbuf_hdr));
return m;
}
static int
ble_hci_sock_acl_tx(struct os_mbuf *om)
{
struct msghdr msg;
struct iovec iov[8];
int i;
struct os_mbuf *m;
uint8_t ch;
memset(&msg, 0, sizeof(msg));
memset(iov, 0, sizeof(iov));
msg.msg_iov = iov;
ch = BLE_HCI_UART_H4_ACL;
iov[0].iov_len = 1;
iov[0].iov_base = &ch;
i = 1;
for (m = om; m; m = SLIST_NEXT(m, om_next)) {
iov[i].iov_base = m->om_data;
iov[i].iov_len = m->om_len;
i++;
}
msg.msg_iovlen = i;
STATS_INC(hci_sock_stats, omsg);
STATS_INC(hci_sock_stats, oacl);
STATS_INCN(hci_sock_stats, obytes, OS_MBUF_PKTLEN(om) + 1);
i = sendmsg(ble_hci_sock_state.sock, &msg, 0);
os_mbuf_free_chain(om);
if (i != OS_MBUF_PKTLEN(om) + 1) {
if (i < 0) {
dprintf(1, "sendmsg() failed : %d\n", errno);
} else {
dprintf(1, "sendmsg() partial write: %d\n", i);
}
STATS_INC(hci_sock_stats, oerr);
return BLE_ERR_MEM_CAPACITY;
}
return 0;
}
static int
ble_hci_sock_cmdevt_tx(uint8_t *hci_ev, uint8_t h4_type)
{
struct msghdr msg;
struct iovec iov[8];
int len;
int i;
uint8_t ch;
memset(&msg, 0, sizeof(msg));
memset(iov, 0, sizeof(iov));
msg.msg_iov = iov;
msg.msg_iovlen = 2;
ch = h4_type;
iov[0].iov_len = 1;
iov[0].iov_base = &ch;
iov[1].iov_base = hci_ev;
if (h4_type == BLE_HCI_UART_H4_CMD) {
len = BLE_HCI_CMD_HDR_LEN + hci_ev[2];
STATS_INC(hci_sock_stats, ocmd);
} else if (h4_type == BLE_HCI_UART_H4_EVT) {
len = BLE_HCI_EVENT_HDR_LEN + hci_ev[1];
STATS_INC(hci_sock_stats, oevt);
} else {
assert(0);
}
iov[1].iov_len = len;
STATS_INC(hci_sock_stats, omsg);
STATS_INCN(hci_sock_stats, obytes, len + 1);
i = sendmsg(ble_hci_sock_state.sock, &msg, 0);
ble_hci_trans_buf_free(hci_ev);
if (i != len + 1) {
if (i < 0) {
dprintf(1, "sendmsg() failed : %d\n", errno);
} else {
dprintf(1, "sendmsg() partial write: %d\n", i);
}
STATS_INC(hci_sock_stats, oerr);
return BLE_ERR_MEM_CAPACITY;
}
return 0;
}
static int
ble_hci_sock_rx_msg(void)
{
struct ble_hci_sock_state *bhss;
int len;
struct os_mbuf *m;
uint8_t *data;
int sr;
int rc;
bhss = &ble_hci_sock_state;
if (bhss->sock < 0) {
return -1;
}
len = read(bhss->sock, bhss->rx_data + bhss->rx_off,
sizeof(bhss->rx_data) - bhss->rx_off);
if (len < 0) {
return -2;
}
if (len == 0) {
return -1;
}
bhss->rx_off += len;
STATS_INCN(hci_sock_stats, ibytes, len);
while (bhss->rx_off > 0) {
switch (bhss->rx_data[0]) {
#if MYNEWT_VAL(BLE_DEVICE)
case BLE_HCI_UART_H4_CMD:
if (bhss->rx_off < BLE_HCI_CMD_HDR_LEN) {
return -1;
}
len = 1 + BLE_HCI_CMD_HDR_LEN + bhss->rx_data[3];
if (bhss->rx_off < len) {
return -1;
}
STATS_INC(hci_sock_stats, imsg);
STATS_INC(hci_sock_stats, icmd);
data = ble_hci_trans_buf_alloc(BLE_HCI_TRANS_BUF_CMD);
if (!data) {
STATS_INC(hci_sock_stats, ierr);
break;
}
memcpy(data, &bhss->rx_data[1], len - 1);
OS_ENTER_CRITICAL(sr);
rc = ble_hci_sock_rx_cmd_cb(data, ble_hci_sock_rx_cmd_arg);
OS_EXIT_CRITICAL(sr);
if (rc) {
ble_hci_trans_buf_free(data);
STATS_INC(hci_sock_stats, ierr);
break;
}
break;
#endif
#if MYNEWT_VAL(BLE_HOST)
case BLE_HCI_UART_H4_EVT:
if (bhss->rx_off < BLE_HCI_EVENT_HDR_LEN) {
return -1;
}
len = 1 + BLE_HCI_EVENT_HDR_LEN + bhss->rx_data[2];
if (bhss->rx_off < len) {
return -1;
}
STATS_INC(hci_sock_stats, imsg);
STATS_INC(hci_sock_stats, ievt);
data = ble_hci_trans_buf_alloc(BLE_HCI_TRANS_BUF_EVT_HI);
if (!data) {
STATS_INC(hci_sock_stats, ierr);
break;
}
memcpy(data, &bhss->rx_data[1], len - 1);
OS_ENTER_CRITICAL(sr);
rc = ble_hci_sock_rx_cmd_cb(data, ble_hci_sock_rx_cmd_arg);
OS_EXIT_CRITICAL(sr);
if (rc) {
ble_hci_trans_buf_free(data);
STATS_INC(hci_sock_stats, ierr);
return 0;
}
break;
#endif
case BLE_HCI_UART_H4_ACL:
if (bhss->rx_off < BLE_HCI_DATA_HDR_SZ) {
return -1;
}
len = 1 + BLE_HCI_DATA_HDR_SZ + (bhss->rx_data[4] << 8) +
bhss->rx_data[3];
if (bhss->rx_off < len) {
return -1;
}
STATS_INC(hci_sock_stats, imsg);
STATS_INC(hci_sock_stats, iacl);
m = ble_hci_trans_acl_buf_alloc();
if (!m) {
STATS_INC(hci_sock_stats, imem);
break;
}
if (os_mbuf_append(m, &bhss->rx_data[1], len - 1)) {
STATS_INC(hci_sock_stats, imem);
os_mbuf_free_chain(m);
break;
}
OS_ENTER_CRITICAL(sr);
ble_hci_sock_rx_acl_cb(m, ble_hci_sock_rx_acl_arg);
OS_EXIT_CRITICAL(sr);
break;
default:
STATS_INC(hci_sock_stats, ierr);
break;
}
memmove(bhss->rx_data, &bhss->rx_data[len], bhss->rx_off - len);
bhss->rx_off -= len;
}
return 0;
}
static void
ble_hci_sock_rx_ev(struct os_event *ev)
{
int rc;
rc = ble_hci_sock_rx_msg();
if (rc == 0) {
os_eventq_put(ble_hci_sock_state.evq, &ble_hci_sock_state.ev);
} else {
os_callout_reset(&ble_hci_sock_state.timer, OS_TICKS_PER_SEC / 100);
}
}
#if MYNEWT_VAL(BLE_SOCK_USE_TCP)
static int
ble_hci_sock_config(void)
{
struct ble_hci_sock_state *bhss = &ble_hci_sock_state;
struct sockaddr_in sin;
int s;
int rc;
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(MYNEWT_VAL(BLE_SOCK_TCP_PORT));
sin.sin_addr.s_addr = inet_addr("127.0.0.1");
#ifdef MN_OSX
sin.sin_len = sizeof(sin);
#endif
#if 0
if (bhss->sock >= 0) {
close(bhss->sock);
bhss->sock = -1;
}
#endif
if (bhss->sock < 0) {
s = socket(PF_INET, SOCK_STREAM, 0);
if (s < 0) {
goto err;
}
rc = connect(s, (struct sockaddr *)&sin, sizeof(sin));
if (rc) {
dprintf(1, "connect() failed: %d\n", errno);
goto err;
}
rc = 1;
rc = ioctl(s, FIONBIO, (char *)&rc);
if (rc) {
goto err;
}
bhss->sock = s;
}
os_callout_reset(&ble_hci_sock_state.timer, OS_TICKS_PER_SEC / 100);
return 0;
err:
if (s >= 0) {
close(s);
}
return BLE_ERR_HW_FAIL;
}
#endif
#if MYNEWT_VAL(BLE_SOCK_USE_LINUX_BLUE)
static int
ble_hci_sock_config(void)
{
struct sockaddr_hci shci;
int s;
int rc;
memset(&shci, 0, sizeof(shci));
shci.hci_family = AF_BLUETOOTH;
shci.hci_dev = MYNEWT_VAL(BLE_SOCK_LINUX_DEV);
shci.hci_channel = HCI_CHANNEL_USER;
if (ble_hci_sock_state.sock >= 0) {
close(ble_hci_sock_state.sock);
ble_hci_sock_state.sock = -1;
}
s = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
if (s < 0) {
dprintf(1, "socket() failed %d\n", errno);
goto err;
}
rc = bind(s, (struct sockaddr *)&shci, sizeof(shci));
if (rc) {
dprintf(1, "bind() failed %d\n", errno);
goto err;
}
rc = 1;
rc = ioctl(s, FIONBIO, (char *)&rc);
if (rc) {
goto err;
}
ble_hci_sock_state.sock = s;
os_callout_reset(&ble_hci_sock_state.timer, OS_TICKS_PER_SEC / 100);
return 0;
err:
if (s >= 0) {
close(s);
}
return BLE_ERR_HW_FAIL;
}
#endif
/**
* Sends an HCI event from the controller to the host.
*
* @param cmd The HCI event to send. This buffer must be
* allocated via ble_hci_trans_buf_alloc().
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
int
ble_hci_trans_ll_evt_tx(uint8_t *cmd)
{
return ble_hci_sock_cmdevt_tx(cmd, BLE_HCI_UART_H4_EVT);
}
/**
* Sends ACL data from controller to host.
*
* @param om The ACL data packet to send.
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
int
ble_hci_trans_ll_acl_tx(struct os_mbuf *om)
{
return ble_hci_sock_acl_tx(om);
}
/**
* Sends an HCI command from the host to the controller.
*
* @param cmd The HCI command to send. This buffer must be
* allocated via ble_hci_trans_buf_alloc().
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
int
ble_hci_trans_hs_cmd_tx(uint8_t *cmd)
{
return ble_hci_sock_cmdevt_tx(cmd, BLE_HCI_UART_H4_CMD);
}
/**
* Sends ACL data from host to controller.
*
* @param om The ACL data packet to send.
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
int
ble_hci_trans_hs_acl_tx(struct os_mbuf *om)
{
return ble_hci_sock_acl_tx(om);
}
/**
* Configures the HCI transport to call the specified callback upon receiving
* HCI packets from the controller. This function should only be called by by
* host.
*
* @param cmd_cb The callback to execute upon receiving an HCI
* event.
* @param cmd_arg Optional argument to pass to the command
* callback.
* @param acl_cb The callback to execute upon receiving ACL
* data.
* @param acl_arg Optional argument to pass to the ACL
* callback.
*/
void
ble_hci_trans_cfg_hs(ble_hci_trans_rx_cmd_fn *cmd_cb,
void *cmd_arg,
ble_hci_trans_rx_acl_fn *acl_cb,
void *acl_arg)
{
ble_hci_sock_rx_cmd_cb = cmd_cb;
ble_hci_sock_rx_cmd_arg = cmd_arg;
ble_hci_sock_rx_acl_cb = acl_cb;
ble_hci_sock_rx_acl_arg = acl_arg;
}
/**
* Configures the HCI transport to operate with a host. The transport will
* execute specified callbacks upon receiving HCI packets from the controller.
*
* @param cmd_cb The callback to execute upon receiving an HCI
* event.
* @param cmd_arg Optional argument to pass to the command
* callback.
* @param acl_cb The callback to execute upon receiving ACL
* data.
* @param acl_arg Optional argument to pass to the ACL
* callback.
*/
void
ble_hci_trans_cfg_ll(ble_hci_trans_rx_cmd_fn *cmd_cb,
void *cmd_arg,
ble_hci_trans_rx_acl_fn *acl_cb,
void *acl_arg)
{
ble_hci_sock_rx_cmd_cb = cmd_cb;
ble_hci_sock_rx_cmd_arg = cmd_arg;
ble_hci_sock_rx_acl_cb = acl_cb;
ble_hci_sock_rx_acl_arg = acl_arg;
}
/**
* Allocates a flat buffer of the specified type.
*
* @param type The type of buffer to allocate; one of the
* BLE_HCI_TRANS_BUF_[...] constants.
*
* @return The allocated buffer on success;
* NULL on buffer exhaustion.
*/
uint8_t *
ble_hci_trans_buf_alloc(int type)
{
uint8_t *buf;
switch (type) {
case BLE_HCI_TRANS_BUF_CMD:
buf = os_memblock_get(&ble_hci_sock_cmd_pool);
break;
case BLE_HCI_TRANS_BUF_EVT_HI:
buf = os_memblock_get(&ble_hci_sock_evt_hi_pool);
if (buf == NULL) {
/* If no high-priority event buffers remain, try to grab a
* low-priority one.
*/
buf = os_memblock_get(&ble_hci_sock_evt_lo_pool);
}
break;
case BLE_HCI_TRANS_BUF_EVT_LO:
buf = os_memblock_get(&ble_hci_sock_evt_lo_pool);
break;
default:
assert(0);
buf = NULL;
}
return buf;
}
/**
* Frees the specified flat buffer. The buffer must have been allocated via
* ble_hci_trans_buf_alloc().
*
* @param buf The buffer to free.
*/
void
ble_hci_trans_buf_free(uint8_t *buf)
{
int rc;
/*
* XXX: this may look a bit odd, but the controller uses the command
* buffer to send back the command complete/status as an immediate
* response to the command. This was done to insure that the controller
* could always send back one of these events when a command was received.
* Thus, we check to see which pool the buffer came from so we can free
* it to the appropriate pool
*/
if (os_memblock_from(&ble_hci_sock_evt_hi_pool, buf)) {
rc = os_memblock_put(&ble_hci_sock_evt_hi_pool, buf);
assert(rc == 0);
} else if (os_memblock_from(&ble_hci_sock_evt_lo_pool, buf)) {
rc = os_memblock_put(&ble_hci_sock_evt_lo_pool, buf);
assert(rc == 0);
} else {
assert(os_memblock_from(&ble_hci_sock_cmd_pool, buf));
rc = os_memblock_put(&ble_hci_sock_cmd_pool, buf);
assert(rc == 0);
}
}
/**
* Resets the HCI UART transport to a clean state. Frees all buffers and
* reconfigures the UART.
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
int
ble_hci_trans_reset(void)
{
int rc;
os_callout_stop(&ble_hci_sock_state.timer);
/* Reopen the UART. */
rc = ble_hci_sock_config();
if (rc != 0) {
dprintf(1, "Failure restarting socket HCI\n");
return rc;
}
return 0;
}
void
ble_hci_sock_set_evq(struct os_eventq *evq)
{
ble_hci_sock_state.evq = evq;
os_callout_stop(&ble_hci_sock_state.timer);
os_callout_init(&ble_hci_sock_state.timer, ble_hci_sock_state.evq,
ble_hci_sock_rx_ev, NULL);
}
/**
* Initializes the UART HCI transport module.
*
* @return 0 on success;
* A BLE_ERR_[...] error code on failure.
*/
void
ble_hci_sock_init(void)
{
int acl_data_length;
int acl_block_size;
int rc;
/* Ensure this function only gets called by sysinit. */
SYSINIT_ASSERT_ACTIVE();
memset(&ble_hci_sock_state, 0, sizeof(ble_hci_sock_state));
ble_hci_sock_state.sock = -1;
ble_hci_sock_set_evq(os_eventq_dflt_get());
ble_hci_sock_state.ev.ev_cb = ble_hci_sock_rx_ev;
/*
* The MBUF payload size must accommodate the HCI data header size plus the
* maximum ACL data packet length. The ACL block size is the size of the
* mbufs we will allocate.
*/
acl_data_length = MYNEWT_VAL(BLE_ACL_BUF_SIZE);
acl_block_size = acl_data_length + BLE_MBUF_MEMBLOCK_OVERHEAD +
BLE_HCI_DATA_HDR_SZ;
acl_block_size = OS_ALIGN(acl_block_size, OS_ALIGNMENT);
rc = mem_malloc_mempool(&ble_hci_sock_acl_pool,
MYNEWT_VAL(BLE_ACL_BUF_COUNT),
acl_block_size,
"ble_hci_sock_acl_pool",
&ble_hci_sock_acl_buf);
SYSINIT_PANIC_ASSERT(rc == 0);
rc = os_mbuf_pool_init(&ble_hci_sock_acl_mbuf_pool,
&ble_hci_sock_acl_pool,
acl_block_size,
MYNEWT_VAL(BLE_ACL_BUF_COUNT));
SYSINIT_PANIC_ASSERT(rc == 0);
/*
* Create memory pool of HCI command buffers. NOTE: we currently dont
* allow this to be configured. The controller will only allow one
* outstanding command. We decided to keep this a pool in case we allow
* allow the controller to handle more than one outstanding command.
*/
rc = mem_malloc_mempool(&ble_hci_sock_cmd_pool,
1,
BLE_HCI_TRANS_CMD_SZ,
"ble_hci_sock_cmd_pool",
&ble_hci_sock_cmd_buf);
SYSINIT_PANIC_ASSERT(rc == 0);
rc = mem_malloc_mempool(&ble_hci_sock_evt_hi_pool,
MYNEWT_VAL(BLE_HCI_EVT_HI_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE),
"ble_hci_sock_evt_hi_pool",
&ble_hci_sock_evt_hi_buf);
SYSINIT_PANIC_ASSERT(rc == 0);
rc = mem_malloc_mempool(&ble_hci_sock_evt_lo_pool,
MYNEWT_VAL(BLE_HCI_EVT_LO_BUF_COUNT),
MYNEWT_VAL(BLE_HCI_EVT_BUF_SIZE),
"ble_hci_sock_evt_lo_pool",
&ble_hci_sock_evt_lo_buf);
SYSINIT_PANIC_ASSERT(rc == 0);
rc = ble_hci_sock_config();
SYSINIT_PANIC_ASSERT_MSG(rc == 0, "Failure configuring socket HCI");
}
nimble/transport/socket/syscfg.yml
+66
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@@ -0,0 +1,66 @@
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
# Package: net/nimble/transport/uart
syscfg.defs:
BLE_HCI_EVT_BUF_SIZE:
description: 'The size of the allocated event buffers'
# The largest event the nimble controller will send is 70 bytes.
value: 70
BLE_HCI_EVT_HI_BUF_COUNT:
description: 'The number of high priority event buffers'
value: 8
BLE_HCI_EVT_LO_BUF_COUNT:
description: 'The number of low priority event buffers'
value: 8
BLE_ACL_BUF_COUNT:
description: 'The number of ACL data buffers'
value: 24
BLE_ACL_BUF_SIZE:
description: >
This is the maximum size of the data portion of HCI ACL data
packets. It does not include the HCI data header (of 4 bytes).
value: 255
BLE_HCI_ACL_OUT_COUNT:
description: >
This count is used in creating a pool of elements used by the
code to enqueue various elements. In the case of the controller
only HCI, this number should be equal to the number of mbufs in
the msys pool. For host only, it is really dependent on the
number of ACL buffers that the controller tells the host it
has.
value: 12
BLE_SOCK_USE_TCP:
description: 'Use TCP socket, connects to BLE_SOCK_TCP_PORT'
value: 1
BLE_SOCK_TCP_PORT:
description: 'ipv4 tcp port to connect to'
value: 14433
BLE_SOCK_USE_LINUX_BLUE:
description: 'Use Linux bluetooth raw socket'
value: 0
BLE_SOCK_LINUX_DEV:
description: 'linux kernel device'
value: 0