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components/bt/host/bluedroid/btc/profile/std/spp/btc_spp.c
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/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include "btc_spp.h"
#include "btc/btc_manage.h"
#include "btc/btc_task.h"
#include "bta/bta_jv_api.h"
#include "common/bt_trace.h"
#include "osi/allocator.h"
#include "esp_spp_api.h"
#include "osi/list.h"
#include "freertos/ringbuf.h"
#include "osi/mutex.h"
#include "osi/alarm.h"
#include <sys/errno.h>
#include <sys/lock.h>
#include <sys/fcntl.h>
#include "esp_vfs.h"
#include "esp_vfs_dev.h"
#include "stack/port_api.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "btc/btc_task.h"
#include "stack/btu.h"
#if (defined BTC_SPP_INCLUDED && BTC_SPP_INCLUDED == TRUE)
#define SLOT_WRITE_BIT(i) (1UL << (i - 1))
#define SLOT_CLOSE_BIT(i) (1UL << (i + MAX_RFC_PORTS - 1))
#define VFS_WRITE_TIMEOUT (40 * 1000)
#define SLOT_TX_QUEUE_SIZE 10
#define SLOT_TX_QUEUE_LOW_WM 4
#define SLOT_TX_DATA_HIGH_WM (SLOT_TX_QUEUE_SIZE * BTA_JV_DEF_RFC_MTU)
#define VFS_CLOSE_TIMEOUT (20 * 1000)
typedef struct {
bool peer_fc; /* true if flow control is set based on peer's request */
bool user_fc; /* true if flow control is set based on user's request */
fixed_queue_t *queue; /* Queue of buffers waiting to be sent */
uint32_t data_size; /* Number of data bytes in the queue */
} slot_data_t;
typedef struct {
bool connected;
bool is_server;
bool is_writing;
uint8_t serial;
uint8_t scn;
uint8_t max_session;
uint16_t mtu;
uint16_t credit_rx;
uint16_t write_data_len;
uint32_t id;
uint32_t sdp_handle;
uint32_t rfc_handle;
uint32_t rfc_port_handle;
int fd;
uint8_t *write_data;
osi_alarm_t *close_alarm;
void *alarm_arg;
esp_spp_role_t role;
esp_spp_sec_t security;
esp_bd_addr_t addr;
slot_data_t rx;
union {
slot_data_t tx;
RingbufHandle_t ringbuf_write;
};
uint8_t service_uuid[16];
char service_name[ESP_SPP_SERVER_NAME_MAX + 1];
} spp_slot_t;
typedef struct {
uint16_t tx_buffer_size;
spp_slot_t *spp_slots[MAX_RFC_PORTS + 1];
uint32_t spp_slot_id;
esp_spp_mode_t spp_mode;
osi_mutex_t spp_slot_mutex;
EventGroupHandle_t tx_event_group;
esp_vfs_id_t spp_vfs_id;
} spp_local_param_t;
#if SPP_DYNAMIC_MEMORY == FALSE
static spp_local_param_t spp_local_param;
#else
static spp_local_param_t *spp_local_param_ptr;
#define spp_local_param (*spp_local_param_ptr)
#endif
static void btc_spp_vfs_register(void);
static void btc_spp_vfs_unregister(void);
static void spp_osi_free(void *p)
{
osi_free(p);
}
#if SPP_DYNAMIC_MEMORY == FALSE
#define is_spp_init() (spp_local_param.spp_slot_mutex != NULL)
#else
#define is_spp_init() (&spp_local_param != NULL && spp_local_param.spp_slot_mutex != NULL)
#endif
static int init_slot_data(slot_data_t *slot_data, size_t queue_size)
{
memset(slot_data, 0, sizeof(slot_data_t));
if ((slot_data->queue = fixed_queue_new(queue_size)) == NULL) {
return -1;
}
slot_data->data_size = 0;
return 0;
}
static void free_slot_data(slot_data_t *slot_data)
{
fixed_queue_free(slot_data->queue, spp_osi_free);
slot_data->queue = NULL;
}
static spp_slot_t *spp_malloc_slot(void)
{
uint8_t err_no = 0;
spp_slot_t **slot = NULL;
if (++spp_local_param.spp_slot_id == 0) {
spp_local_param.spp_slot_id = 1;
}
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = &spp_local_param.spp_slots[i];
if ((*slot) == NULL) {
if (((*slot) = (spp_slot_t *)osi_malloc(sizeof(spp_slot_t))) == NULL) {
return NULL;
}
(*slot)->id = spp_local_param.spp_slot_id;
(*slot)->serial = i;
(*slot)->sdp_handle = 0;
(*slot)->rfc_handle = 0;
(*slot)->rfc_port_handle = 0;
(*slot)->fd = -1;
(*slot)->connected = false;
(*slot)->is_server = false;
(*slot)->mtu = 0;
(*slot)->credit_rx = BTA_JV_MAX_CREDIT_NUM;
(*slot)->write_data = NULL;
(*slot)->write_data_len = 0;
(*slot)->is_writing = false;
(*slot)->close_alarm = NULL;
(*slot)->alarm_arg = NULL;
/* clear the old event bits */
if (spp_local_param.tx_event_group) {
xEventGroupClearBits(spp_local_param.tx_event_group, SLOT_WRITE_BIT(i) | SLOT_CLOSE_BIT(i));
}
if (init_slot_data(&(*slot)->rx, QUEUE_SIZE_MAX)) {
BTC_TRACE_ERROR("%s unable to malloc rx queue!", __func__);
err_no = 1;
goto err;
}
if (spp_local_param.spp_mode == ESP_SPP_MODE_CB) {
if (init_slot_data(&(*slot)->tx, SLOT_TX_QUEUE_SIZE)) {
BTC_TRACE_ERROR("%s unable to malloc tx queue!", __func__);
err_no = 2;
goto err;
}
} else {
if (((*slot)->ringbuf_write = xRingbufferCreate(spp_local_param.tx_buffer_size, RINGBUF_TYPE_BYTEBUF)) == NULL) {
BTC_TRACE_ERROR("%s write ringbuffer create error!", __func__);
err_no = 2;
goto err;
}
if (esp_vfs_register_fd(spp_local_param.spp_vfs_id, &(*slot)->fd) != ESP_OK) {
BTC_TRACE_ERROR("%s unable to register fd!", __func__);
err_no = 3;
goto err;
}
}
return (*slot);
}
}
return NULL;
err:
switch (err_no) {
case 3:
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
vRingbufferDelete((*slot)->ringbuf_write);
}
case 2:
free_slot_data(&(*slot)->rx);
case 1:
osi_free((*slot));
(*slot) = NULL;
break;
default:
break;
}
return (*slot);
}
static spp_slot_t *spp_find_slot_by_id(uint32_t id)
{
spp_slot_t *slot = NULL;
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = spp_local_param.spp_slots[i];
if (slot != NULL && slot->id == id) {
return slot;
}
}
return NULL;
}
static spp_slot_t *spp_find_slot_by_handle(uint32_t handle)
{
spp_slot_t *slot = NULL;
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = spp_local_param.spp_slots[i];
if (slot != NULL && slot->rfc_handle == handle) {
return slot;
}
}
return NULL;
}
static spp_slot_t *spp_find_slot_by_fd(int fd)
{
spp_slot_t *slot = NULL;
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = spp_local_param.spp_slots[i];
if (slot != NULL && slot->fd == fd) {
return slot;
}
}
return NULL;
}
static spp_slot_t *spp_find_slot_by_scn(uint32_t scn)
{
spp_slot_t *slot = NULL;
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = spp_local_param.spp_slots[i];
if (slot != NULL && slot->is_server && slot->scn == (uint8_t)scn) {
return slot;
}
}
return NULL;
}
static void close_timeout_handler(void *arg)
{
btc_msg_t msg;
bt_status_t status;
spp_slot_t *slot = (spp_slot_t *)arg;
msg.sig = BTC_SIG_API_CB;
msg.pid = BTC_PID_SPP;
msg.act = BTA_JV_RFCOMM_CLOSE_EVT;
status = btc_transfer_context(&msg, slot->alarm_arg, sizeof(tBTA_JV), NULL, NULL);
if (slot->alarm_arg) {
osi_free(slot->alarm_arg);
slot->alarm_arg = NULL;
}
if (status != BT_STATUS_SUCCESS) {
BTC_TRACE_ERROR("%s btc_transfer_context failed", __func__);
}
}
static void spp_free_slot(spp_slot_t *slot)
{
if (!slot) {
return;
}
spp_local_param.spp_slots[slot->serial] = NULL;
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
(void) esp_vfs_unregister_fd(spp_local_param.spp_vfs_id, slot->fd);
xEventGroupSetBits(spp_local_param.tx_event_group, SLOT_CLOSE_BIT(slot->serial));
vRingbufferDelete(slot->ringbuf_write);
} else {
free_slot_data(&slot->tx);
}
free_slot_data(&slot->rx);
if (slot->close_alarm) {
osi_alarm_free(slot->close_alarm);
if (slot->alarm_arg) {
osi_free(slot->alarm_arg);
slot->alarm_arg = NULL;
}
}
osi_free(slot);
}
static void spp_free_pending_slots(void)
{
spp_slot_t *slot = NULL;
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
slot = spp_local_param.spp_slots[i];
if (slot) {
BTC_TRACE_WARNING("%s found slot(rfc_handle=0x%x) pending to close, close it now!", __func__, slot->rfc_handle);
spp_free_slot(slot);
}
}
}
static inline void btc_spp_cb_to_app(esp_spp_cb_event_t event, esp_spp_cb_param_t *param)
{
esp_spp_cb_t btc_spp_cb = (esp_spp_cb_t)btc_profile_cb_get(BTC_PID_SPP);
if (btc_spp_cb) {
btc_spp_cb(event, param);
}
}
static void btc_create_server_fail_cb(void)
{
esp_spp_cb_param_t param;
param.start.status = ESP_SPP_FAILURE;
param.start.handle = 0;
param.start.sec_id = 0;
param.start.scn = BTC_SPP_INVALID_SCN;
param.start.use_co = FALSE;
btc_spp_cb_to_app(ESP_SPP_START_EVT, ¶m);
}
static void *btc_spp_rfcomm_inter_cb(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data)
{
bt_status_t status;
btc_msg_t msg;
void *new_user_data = NULL;
uint32_t id = (uintptr_t)user_data, id_temp = 0;
spp_slot_t *slot = NULL, *slot_new = NULL;
if (!is_spp_init()) {
BTC_TRACE_WARNING("%s SPP have been deinit, incoming events ignore!\n", __func__);
return new_user_data;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
switch (event) {
case BTA_JV_RFCOMM_START_EVT:
slot = spp_find_slot_by_id(id);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
p_data->rfc_start.status = ESP_SPP_NO_CONNECTION;
break;
}
slot->rfc_handle = p_data->rfc_start.handle;
slot->rfc_port_handle = BTA_JvRfcommGetPortHdl(p_data->rfc_start.handle);
break;
case BTA_JV_RFCOMM_SRV_OPEN_EVT:
slot = p_data->rfc_srv_open.handle ? spp_find_slot_by_id(id) : spp_find_slot_by_scn((uint32_t)user_data);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
p_data->rfc_srv_open.status = ESP_SPP_NO_CONNECTION;
break;
}
if (!p_data->rfc_srv_open.handle) {
/* match with the exist server solt */
slot->rfc_handle = p_data->rfc_srv_open.new_listen_handle;
slot->rfc_port_handle = BTA_JvRfcommGetPortHdl(slot->rfc_handle);
} else {
slot_new = spp_malloc_slot();
if (!slot_new) {
BTC_TRACE_ERROR("%s unable to malloc RFCOMM slot!", __func__);
p_data->rfc_srv_open.status = ESP_SPP_NO_RESOURCE;
break;
}
slot_new->connected = true;
slot_new->security = slot->security;
slot_new->role = slot->role;
slot_new->scn = slot->scn;
slot_new->max_session = slot->max_session;
strcpy(slot_new->service_name, slot->service_name);
slot_new->sdp_handle = slot->sdp_handle;
slot_new->mtu = p_data->rfc_srv_open.peer_mtu;
slot_new->rfc_handle = p_data->rfc_srv_open.handle;
slot_new->rfc_port_handle = BTA_JvRfcommGetPortHdl(slot_new->rfc_handle);
BTA_JvSetPmProfile(p_data->rfc_srv_open.handle, BTA_JV_PM_ALL, BTA_JV_CONN_OPEN);
if (p_data->rfc_srv_open.new_listen_handle) {
slot->rfc_handle = p_data->rfc_srv_open.new_listen_handle;
slot->rfc_port_handle = BTA_JvRfcommGetPortHdl(slot->rfc_handle);
} else {
/* means lower layer can alloc port */
slot->rfc_handle = 0;
slot->rfc_port_handle = 0;
}
/* swap slot id */
id_temp = slot->id;
slot->id = slot_new->id;
slot_new->id = id_temp;
}
new_user_data = (void *)(uintptr_t)slot->id;
break;
case BTA_JV_RFCOMM_CL_INIT_EVT:
slot = spp_find_slot_by_id(id);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
p_data->rfc_cl_init.status = ESP_SPP_FAILURE;
break;
}
if (p_data->rfc_cl_init.status == BTA_JV_SUCCESS) {
slot->rfc_handle = p_data->rfc_cl_init.handle;
} else {
spp_free_slot(slot);
}
break;
case BTA_JV_RFCOMM_OPEN_EVT:
slot = spp_find_slot_by_id(id);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
p_data->rfc_open.status = ESP_SPP_NO_CONNECTION;
break;
}
slot->connected = true;
slot->rfc_handle = p_data->rfc_open.handle;
slot->mtu = p_data->rfc_open.peer_mtu;
slot->rfc_port_handle = BTA_JvRfcommGetPortHdl(p_data->rfc_open.handle);
BTA_JvSetPmProfile(p_data->rfc_open.handle, BTA_JV_PM_ID_1, BTA_JV_CONN_OPEN);
break;
case BTA_JV_RFCOMM_DATA_IND_EVT:
break;
case BTA_JV_FREE_SCN_EVT:
if (user_data) {
id = ((tBTA_JV_FREE_SCN_USER_DATA *)user_data)->slot_id;
slot = spp_find_slot_by_id(id);
if (slot) {
spp_free_slot(slot);
} else {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
p_data->free_scn.status = ESP_SPP_NO_CONNECTION;
}
osi_free(user_data);
}
break;
default:
break;
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
msg.sig = BTC_SIG_API_CB;
msg.pid = BTC_PID_SPP;
msg.act = event;
status = btc_transfer_context(&msg, p_data,
sizeof(tBTA_JV), NULL, NULL);
if (status != BT_STATUS_SUCCESS) {
BTC_TRACE_ERROR("%s btc_transfer_context failed", __func__);
}
return new_user_data;
}
static void btc_spp_dm_inter_cb(tBTA_JV_EVT event, tBTA_JV *p_data, void *user_data)
{
bt_status_t status;
btc_msg_t msg;
uint32_t id = (uintptr_t)user_data;
spp_slot_t *slot = NULL;
switch (event) {
case BTA_JV_GET_SCN_EVT:
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_id(id);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
if (p_data->scn == 0) {
btc_create_server_fail_cb();
spp_free_slot(slot);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to get scn, start server fail!", __func__);
break;
}
slot->scn = p_data->scn;
BTA_JvCreateRecordByUser(slot->service_name, slot->scn, (void *)slot->id);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
case BTA_JV_CREATE_RECORD_EVT:
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_id(id);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
if (p_data->create_rec.status == BTA_JV_SUCCESS) {
slot->sdp_handle = p_data->create_rec.handle;
BTA_JvRfcommStartServer(slot->security, slot->role, slot->scn,
slot->max_session, (tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb, (void *)slot->id);
} else {
BTC_TRACE_ERROR("%s unable to create record, start server fail!", __func__);
btc_create_server_fail_cb();
tBTA_JV_FREE_SCN_USER_DATA *user_data = osi_malloc(sizeof(tBTA_JV_FREE_SCN_USER_DATA));
if (user_data) {
user_data->server_status = BTA_JV_SERVER_START_FAILED;
user_data->slot_id = slot->id;
} else {
BTC_TRACE_ERROR("%s unable to malloc user data!", __func__);
assert(0);
}
BTA_JvFreeChannel(slot->scn, BTA_JV_CONN_TYPE_RFCOMM,
(tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb, (void *)user_data);
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
default:
msg.sig = BTC_SIG_API_CB;
msg.pid = BTC_PID_SPP;
msg.act = event;
status = btc_transfer_context(&msg, p_data, sizeof(tBTA_JV), NULL, NULL);
if (status != BT_STATUS_SUCCESS) {
BTC_TRACE_ERROR("%s btc_transfer_context failed\n", __func__);
}
break;
}
}
static void btc_spp_init(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (is_spp_init()) {
BTC_TRACE_ERROR("%s SPP has been initiated, shall uninit first!", __func__);
ret = ESP_SPP_NEED_DEINIT;
break;
}
#if SPP_DYNAMIC_MEMORY == TRUE
if ((spp_local_param_ptr = (spp_local_param_t *)osi_malloc(sizeof(spp_local_param_t))) == NULL) {
BTC_TRACE_ERROR("%s malloc failed\n", __func__);
ret = ESP_SPP_NO_RESOURCE;
break;
}
memset((void *)spp_local_param_ptr, 0, sizeof(spp_local_param_t));
#endif
if (osi_mutex_new(&spp_local_param.spp_slot_mutex) != 0) {
BTC_TRACE_ERROR("%s osi_mutex_new failed\n", __func__);
#if SPP_DYNAMIC_MEMORY == TRUE
osi_free(spp_local_param_ptr);
spp_local_param_ptr = NULL;
#endif
ret = ESP_SPP_NO_RESOURCE;
break;
}
if ((spp_local_param.tx_event_group = xEventGroupCreate()) == NULL) {
BTC_TRACE_ERROR("%s create tx_event_group failed\n", __func__);
osi_mutex_free(&spp_local_param.spp_slot_mutex);
#if SPP_DYNAMIC_MEMORY == TRUE
osi_free(spp_local_param_ptr);
spp_local_param_ptr = NULL;
#endif
ret = ESP_SPP_NO_RESOURCE;
break;
}
if (arg->init.mode == ESP_SPP_MODE_VFS) {
spp_local_param.spp_vfs_id = -1;
}
spp_local_param.spp_mode = arg->init.mode;
spp_local_param.spp_slot_id = 0;
spp_local_param.tx_buffer_size = arg->init.tx_buffer_size;
BTA_JvEnable((tBTA_JV_DM_CBACK *)btc_spp_dm_inter_cb);
BTA_JvRfcommConfig(arg->init.enable_l2cap_ertm);
} while (0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.init.status = ret;
btc_spp_cb_to_app(ESP_SPP_INIT_EVT, ¶m);
}
}
static void btc_spp_uninit(void)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP has not been initiated, shall init first!", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
// first, remove all connection
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
if (spp_local_param.spp_slots[i] != NULL && !spp_local_param.spp_slots[i]->is_server) {
BTA_JvRfcommClose(spp_local_param.spp_slots[i]->rfc_handle, (void *)spp_local_param.spp_slots[i]->id);
}
}
// second, remove all server
for (size_t i = 1; i <= MAX_RFC_PORTS; i++) {
if (spp_local_param.spp_slots[i] != NULL && spp_local_param.spp_slots[i]->is_server) {
if (spp_local_param.spp_slots[i]->sdp_handle > 0) {
BTA_JvDeleteRecord(spp_local_param.spp_slots[i]->sdp_handle);
}
if (spp_local_param.spp_slots[i]->rfc_handle > 0) {
BTA_JvRfcommStopServer(spp_local_param.spp_slots[i]->rfc_handle,
(void *)spp_local_param.spp_slots[i]->id);
}
tBTA_JV_FREE_SCN_USER_DATA *user_data = osi_malloc(sizeof(tBTA_JV_FREE_SCN_USER_DATA));
if (user_data) {
user_data->server_status = BTA_JV_SERVER_RUNNING;
user_data->slot_id = spp_local_param.spp_slots[i]->id;
} else {
BTC_TRACE_ERROR("%s unable to malloc user data!", __func__);
assert(0);
}
BTA_JvFreeChannel(spp_local_param.spp_slots[i]->scn, BTA_JV_CONN_TYPE_RFCOMM,
(tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb, (void *)user_data);
}
}
BTA_JvDisable((tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while(0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.uninit.status = ret;
btc_spp_cb_to_app(ESP_SPP_UNINIT_EVT, ¶m);
}
}
static void btc_spp_start_discovery(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
BTA_JvStartDiscovery(arg->start_discovery.bd_addr, arg->start_discovery.num_uuid, arg->start_discovery.p_uuid_list, NULL);
} while (0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.disc_comp.status = ret;
param.disc_comp.scn_num = 0xff;
memset(param.disc_comp.scn, 0xff, ESP_SPP_MAX_SCN);
btc_spp_cb_to_app(ESP_SPP_DISCOVERY_COMP_EVT, ¶m);
}
}
static void btc_spp_connect(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
spp_slot_t *slot = spp_malloc_slot();
if (!slot) {
BTC_TRACE_ERROR("%s unable to malloc RFCOMM slot!", __func__);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
ret = ESP_SPP_NO_RESOURCE;
break;
}
slot->security = arg->connect.sec_mask;
slot->role = arg->connect.role;
slot->scn = arg->connect.remote_scn;
memcpy(slot->addr, arg->connect.peer_bd_addr, ESP_BD_ADDR_LEN);
BTA_JvRfcommConnect(arg->connect.sec_mask, arg->connect.role, arg->connect.remote_scn,
arg->connect.peer_bd_addr, (tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb, (void *)slot->id);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while (0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.open.status = ret;
param.open.handle = 0;
param.open.fd = -1;
memset(param.open.rem_bda, 0, ESP_BD_ADDR_LEN);
btc_spp_cb_to_app(ESP_SPP_OPEN_EVT, ¶m);
}
}
static void btc_spp_disconnect(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
spp_slot_t *slot = NULL;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(arg->disconnect.handle);
if (!slot || (slot && !slot->connected)) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot! disconnect fail!", __func__);
} else {
BTC_TRACE_ERROR("%s RFCOMM has been disconnected already!", __func__);
}
ret = ESP_SPP_NO_CONNECTION;
break;
}
BTA_JvRfcommClose(arg->disconnect.handle, (void *)slot->id);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while(0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.close.status = ret;
param.close.port_status = PORT_ERR_MAX;
param.close.handle = 0;
param.close.async = FALSE;
btc_spp_cb_to_app(ESP_SPP_CLOSE_EVT, ¶m);
}
}
static void btc_spp_start_srv(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
spp_slot_t *slot = spp_malloc_slot();
if (!slot) {
BTC_TRACE_ERROR("%s unable to malloc RFCOMM slot!", __func__);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
ret = ESP_SPP_NO_RESOURCE;
break;
}
/**
* make this slot become a listening slot
*/
slot->is_server = true;
slot->security = arg->start_srv.sec_mask;
slot->role = arg->start_srv.role;
slot->scn = arg->start_srv.local_scn;
slot->max_session = arg->start_srv.max_session;
strcpy(slot->service_name, arg->start_srv.name);
BTA_JvGetChannelId(BTA_JV_CONN_TYPE_RFCOMM, (void *)slot->id, arg->start_srv.local_scn);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while(0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.start.status = ret;
param.start.handle = 0;
param.start.sec_id = 0;
param.start.scn = BTC_SPP_INVALID_SCN;
param.start.use_co = FALSE;
btc_spp_cb_to_app(ESP_SPP_START_EVT, ¶m);
}
}
static void btc_spp_stop_srv(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
bool is_remove_all = false;
uint8_t i, j, srv_cnt = 0;
uint8_t *srv_scn_arr = NULL;
if (arg->stop_srv.scn == BTC_SPP_INVALID_SCN) {
is_remove_all = true;
}
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
srv_scn_arr = osi_malloc(MAX_RFC_PORTS);
if (srv_scn_arr == NULL) {
BTC_TRACE_ERROR("%s malloc srv_scn_arr failed\n", __func__);
ret = ESP_SPP_NO_RESOURCE;
break;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
// [1] find all unconnected server
for (i = 1; i <= MAX_RFC_PORTS; i++) {
if (spp_local_param.spp_slots[i] != NULL && !spp_local_param.spp_slots[i]->connected &&
spp_local_param.spp_slots[i]->sdp_handle > 0) {
if (is_remove_all) {
srv_scn_arr[srv_cnt++] = spp_local_param.spp_slots[i]->scn;
} else if (spp_local_param.spp_slots[i]->scn == arg->stop_srv.scn) {
srv_scn_arr[srv_cnt++] = spp_local_param.spp_slots[i]->scn;
break;
}
}
}
if (srv_cnt == 0) {
if (is_remove_all) {
BTC_TRACE_ERROR("%s can not find any server!\n", __func__);
} else {
BTC_TRACE_ERROR("%s can not find server:%d!\n", __func__, arg->stop_srv.scn);
}
ret = ESP_SPP_NO_SERVER;
break;
}
// [2] remove all local related connection
for (j = 0; j < srv_cnt; j++) {
for (i = 1; i <= MAX_RFC_PORTS; i++) {
if (spp_local_param.spp_slots[i] != NULL && !spp_local_param.spp_slots[i]->is_server &&
spp_local_param.spp_slots[i]->sdp_handle > 0 &&
spp_local_param.spp_slots[i]->scn == srv_scn_arr[j]) {
BTA_JvRfcommClose(spp_local_param.spp_slots[i]->rfc_handle, (void *)spp_local_param.spp_slots[i]->id);
}
}
}
// [3] remove all server
for (j = 0; j < srv_cnt; j++) {
for (i = 1; i <= MAX_RFC_PORTS; i++) {
if (spp_local_param.spp_slots[i] != NULL && spp_local_param.spp_slots[i]->is_server &&
spp_local_param.spp_slots[i]->sdp_handle > 0 &&
spp_local_param.spp_slots[i]->scn == srv_scn_arr[j]) {
if (spp_local_param.spp_slots[i]->sdp_handle > 0) {
BTA_JvDeleteRecord(spp_local_param.spp_slots[i]->sdp_handle);
}
if (spp_local_param.spp_slots[i]->rfc_handle > 0) {
BTA_JvRfcommStopServer(spp_local_param.spp_slots[i]->rfc_handle,
(void *)spp_local_param.spp_slots[i]->id);
}
tBTA_JV_FREE_SCN_USER_DATA *user_data = osi_malloc(sizeof(tBTA_JV_FREE_SCN_USER_DATA));
if (user_data) {
user_data->server_status = BTA_JV_SERVER_RUNNING;
user_data->slot_id = spp_local_param.spp_slots[i]->id;
} else {
BTC_TRACE_ERROR("%s unable to malloc user data!", __func__);
assert(0);
}
BTA_JvFreeChannel(spp_local_param.spp_slots[i]->scn, BTA_JV_CONN_TYPE_RFCOMM,
(tBTA_JV_RFCOMM_CBACK *)btc_spp_rfcomm_inter_cb, (void *)user_data);
}
}
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while (0);
if (ret != ESP_SPP_SUCCESS) {
esp_spp_cb_param_t param;
param.srv_stop.status = ret;
param.srv_stop.scn = BTC_SPP_INVALID_SCN;
btc_spp_cb_to_app(ESP_SPP_SRV_STOP_EVT, ¶m);
}
if (srv_scn_arr) {
osi_free(srv_scn_arr);
srv_scn_arr = NULL;
}
}
static void btc_spp_write(btc_spp_args_t *arg)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
spp_slot_t *slot = NULL;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(arg->write.handle);
if (!slot || (slot && !slot->connected)) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!", __func__);
} else {
BTC_TRACE_ERROR("%s RFCOMM has been disconnected already!", __func__);
}
ret = ESP_SPP_NO_CONNECTION;
break;
}
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
if (slot->is_writing) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
return;
}
size_t item_size = 0;
uint8_t *data = xRingbufferReceiveUpTo(slot->ringbuf_write, &item_size, 0, slot->mtu);
if (item_size > 0) {
slot->write_data = data;
slot->write_data_len = item_size;
slot->is_writing = true;
BTA_JvRfcommWrite(arg->write.handle, slot->id, item_size, data);
}
} else {
if (fixed_queue_enqueue(slot->tx.queue, arg->write.p_data, 0)) {
BTA_JvRfcommWrite(arg->write.handle, slot->id, arg->write.len, arg->write.p_data);
} else {
ret = ESP_SPP_NO_RESOURCE;
}
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while (0);
if (ret != ESP_SPP_SUCCESS && spp_local_param.spp_mode == ESP_SPP_MODE_CB) {
esp_spp_cb_param_t param;
param.write.status = ret;
param.write.handle = 0;
param.write.len = -1;
param.write.cong = false;
btc_spp_cb_to_app(ESP_SPP_WRITE_EVT, ¶m);
}
}
void btc_spp_arg_deep_copy(btc_msg_t *msg, void *p_dest, void *p_src)
{
btc_spp_args_t *dst = (btc_spp_args_t *) p_dest;
btc_spp_args_t *src = (btc_spp_args_t *) p_src;
switch (msg->act) {
case BTC_SPP_ACT_START_DISCOVERY:
dst->start_discovery.p_uuid_list = (tSDP_UUID *)osi_malloc(src->start_discovery.num_uuid * sizeof(tSDP_UUID));
if (dst->start_discovery.p_uuid_list) {
memcpy(dst->start_discovery.p_uuid_list, src->start_discovery.p_uuid_list, src->start_discovery.num_uuid * sizeof(tSDP_UUID));
} else if (src->start_discovery.num_uuid == 0) {
BTC_TRACE_ERROR("%s %d no mem\n", __func__, msg->act);
} else {
BTC_TRACE_ERROR("%s %d osi_malloc failed\n", __func__, msg->act);
}
break;
case BTC_SPP_ACT_WRITE:
dst->write.p_data = (uint8_t *)osi_malloc(src->write.len);
if (dst->write.p_data) {
memcpy(dst->write.p_data, src->write.p_data, src->write.len);
} else if (src->write.len == 0) {
BTC_TRACE_DEBUG("%s %d no mem\n", __func__, msg->act);
} else {
BTC_TRACE_ERROR("%s %d osi_malloc failed\n", __func__, msg->act);
}
break;
default:
break;
}
}
void btc_spp_arg_deep_free(btc_msg_t *msg)
{
btc_spp_args_t *arg = (btc_spp_args_t *)msg->arg;
switch (msg->act) {
case BTC_SPP_ACT_START_DISCOVERY:
if (arg->start_discovery.p_uuid_list) {
osi_free(arg->start_discovery.p_uuid_list);
}
break;
default:
break;
}
}
void btc_spp_call_handler(btc_msg_t *msg)
{
btc_spp_args_t *arg = (btc_spp_args_t *)(msg->arg);
switch (msg->act) {
case BTC_SPP_ACT_INIT:
btc_spp_init(arg);
break;
case BTC_SPP_ACT_UNINIT:
btc_spp_uninit();
break;
case BTC_SPP_ACT_START_DISCOVERY:
btc_spp_start_discovery(arg);
break;
case BTC_SPP_ACT_CONNECT:
btc_spp_connect(arg);
break;
case BTC_SPP_ACT_DISCONNECT:
btc_spp_disconnect(arg);
break;
case BTC_SPP_ACT_START_SRV:
btc_spp_start_srv(arg);
break;
case BTC_SPP_ACT_STOP_SRV:
btc_spp_stop_srv(arg);
break;
case BTC_SPP_ACT_WRITE:
btc_spp_write(arg);
break;
case BTC_SPP_ACT_VFS_REGISTER:
btc_spp_vfs_register();
break;
case BTC_SPP_ACT_VFS_UNREGISTER:
btc_spp_vfs_unregister();
break;
default:
BTC_TRACE_ERROR("%s: Unhandled event (%d)!\n", __FUNCTION__, msg->act);
break;
}
btc_spp_arg_deep_free(msg);
}
void btc_spp_cb_handler(btc_msg_t *msg)
{
esp_spp_cb_param_t param;
tBTA_JV *p_data = (tBTA_JV *)msg->arg;
spp_slot_t *slot = NULL;
uint8_t serial = 0;
uint8_t event = msg->act;
switch (event) {
case BTA_JV_ENABLE_EVT:
param.init.status = p_data->status;
btc_spp_cb_to_app(ESP_SPP_INIT_EVT, ¶m);
break;
case BTA_JV_DISCOVERY_COMP_EVT:
param.disc_comp.status = p_data->disc_comp.status;
param.disc_comp.scn_num = p_data->disc_comp.scn_num;
memcpy(param.disc_comp.scn, p_data->disc_comp.scn, p_data->disc_comp.scn_num);
memcpy(param.disc_comp.service_name, p_data->disc_comp.service_name,
p_data->disc_comp.scn_num * sizeof(const char *));
btc_spp_cb_to_app(ESP_SPP_DISCOVERY_COMP_EVT, ¶m);
break;
case BTA_JV_RFCOMM_CL_INIT_EVT:
param.cl_init.status = p_data->rfc_cl_init.status;
param.cl_init.handle = p_data->rfc_cl_init.handle;
param.cl_init.sec_id = p_data->rfc_cl_init.sec_id;
param.cl_init.use_co = p_data->rfc_cl_init.use_co;
btc_spp_cb_to_app(ESP_SPP_CL_INIT_EVT, ¶m);
break;
case BTA_JV_RFCOMM_OPEN_EVT:
do {
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_open.handle);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
param.open.status = ESP_SPP_NO_CONNECTION;
break;
}
param.open.fd = slot->fd;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} else {
param.open.fd = -1;
}
param.open.status = p_data->rfc_open.status;
} while (0);
param.open.handle = p_data->rfc_open.handle;
memcpy(param.open.rem_bda, p_data->rfc_open.rem_bda, ESP_BD_ADDR_LEN);
btc_spp_cb_to_app(ESP_SPP_OPEN_EVT, ¶m);
break;
case BTA_JV_RFCOMM_START_EVT:
param.start.status = p_data->rfc_start.status;
param.start.handle = p_data->rfc_start.handle;
param.start.sec_id = p_data->rfc_start.sec_id;
param.start.scn = p_data->rfc_start.scn;
param.start.use_co = p_data->rfc_start.use_co;
btc_spp_cb_to_app(ESP_SPP_START_EVT, ¶m);
break;
case BTA_JV_RFCOMM_SRV_OPEN_EVT:
if (p_data->rfc_srv_open.handle) {
do {
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_srv_open.handle);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
param.srv_open.status = ESP_SPP_NO_CONNECTION;
break;
}
param.srv_open.fd = slot->fd;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} else {
param.srv_open.fd = -1;
}
param.srv_open.status = p_data->rfc_srv_open.status;
} while (0);
param.srv_open.handle = p_data->rfc_srv_open.handle;
param.srv_open.new_listen_handle = p_data->rfc_srv_open.new_listen_handle;
memcpy(param.srv_open.rem_bda, p_data->rfc_srv_open.rem_bda, ESP_BD_ADDR_LEN);
btc_spp_cb_to_app(ESP_SPP_SRV_OPEN_EVT, ¶m);
}
break;
case BTA_JV_RFCOMM_WRITE_EVT:
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_write.handle);
if (!slot) {
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!, handle:%d", __func__, p_data->rfc_write.handle);
}
if (spp_local_param.spp_mode == ESP_SPP_MODE_CB){
param.write.status = slot ? p_data->rfc_write.status : ESP_SPP_NO_CONNECTION;
param.write.handle = p_data->rfc_write.handle;
param.write.len = p_data->rfc_write.len;
param.write.cong = p_data->rfc_write.cong;
btc_spp_cb_to_app(ESP_SPP_WRITE_EVT, ¶m);
if (slot) {
osi_free(fixed_queue_dequeue(slot->tx.queue, FIXED_QUEUE_MAX_TIMEOUT));
}
} else {
if (slot) {
size_t item_size = 0;
size_t items_waiting = 0;
serial = slot->serial;
if (p_data->rfc_write.status == BTA_JV_SUCCESS) {
vRingbufferReturnItem(slot->ringbuf_write,slot->write_data);
slot->write_data = NULL;
slot->is_writing = false;
slot->write_data_len = 0;
vRingbufferGetInfo(slot->ringbuf_write, NULL, NULL, NULL, NULL, &items_waiting);
if (spp_local_param.tx_buffer_size > items_waiting) {
xEventGroupSetBits(spp_local_param.tx_event_group, SLOT_WRITE_BIT(serial));
}
if (items_waiting == 0) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
}
if (!p_data->rfc_write.cong) {
uint8_t *data = xRingbufferReceiveUpTo(slot->ringbuf_write, &item_size, 0, slot->mtu);
if (item_size > 0) {
slot->write_data = data;
slot->write_data_len = item_size;
slot->is_writing = true;
BTA_JvRfcommWrite(p_data->rfc_write.handle, slot->id, item_size, data);
}
}
} else {
if (!p_data->rfc_write.old_cong) {
// PORT_WriteDataCO failed
BTC_TRACE_ERROR("PORT_WriteDataCO failed p_buf:%p, handle:%d\n", slot->write_data,
p_data->rfc_write.handle);
} else {
// need rewrite
if (!p_data->rfc_write.cong && slot->connected) {
slot->is_writing = true;
BTA_JvRfcommWrite(p_data->rfc_write.handle, slot->id, slot->write_data_len, slot->write_data);
} else {
slot->is_writing = false;
}
}
}
}
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
case BTA_JV_RFCOMM_CLOSE_EVT:
param.close.status = BTA_JV_SUCCESS;
param.close.port_status = p_data->rfc_close.port_status;
param.close.handle = p_data->rfc_close.handle;
param.close.async = p_data->rfc_close.async;
if (spp_local_param.spp_mode == ESP_SPP_MODE_CB) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_close.handle);
if (!slot) {
param.close.status = ESP_SPP_NO_CONNECTION;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
spp_free_slot(slot);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
btc_spp_cb_to_app(ESP_SPP_CLOSE_EVT, ¶m);
} else {
bool need_call = true;
do {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_close.handle);
if (!slot) {
param.close.status = ESP_SPP_NO_CONNECTION;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
// if rx still has data, delay free slot
if (slot->close_alarm == NULL && slot->rx.queue && fixed_queue_length(slot->rx.queue) > 0) {
tBTA_JV *p_arg = NULL;
if ((p_arg = osi_malloc(sizeof(tBTA_JV))) == NULL) {
param.close.status = ESP_SPP_NO_RESOURCE;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to malloc slot close_alarm arg!", __func__);
break;
}
memcpy(p_arg, p_data, sizeof(tBTA_JV));
slot->alarm_arg = (void *)p_arg;
if ((slot->close_alarm =
osi_alarm_new("slot", close_timeout_handler, (void *)slot, VFS_CLOSE_TIMEOUT)) == NULL) {
osi_free(p_arg);
slot->alarm_arg = NULL;
param.close.status = ESP_SPP_NO_RESOURCE;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to malloc slot close_alarm!", __func__);
break;
}
if (osi_alarm_set(slot->close_alarm, VFS_CLOSE_TIMEOUT) != OSI_ALARM_ERR_PASS) {
osi_free(p_arg);
slot->alarm_arg = NULL;
osi_alarm_free(slot->close_alarm);
param.close.status = ESP_SPP_BUSY;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s set slot close_alarm failed!", __func__);
break;
}
BTC_TRACE_WARNING("%s slot rx data will be discard in %d milliseconds!",
__func__, VFS_CLOSE_TIMEOUT);
slot->connected = false;
need_call = false;
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
} while (0);
if (need_call) {
btc_spp_cb_to_app(ESP_SPP_CLOSE_EVT, ¶m);
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
spp_free_slot(slot);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
}
}
break;
case BTA_JV_RFCOMM_CONG_EVT:
if (spp_local_param.spp_mode == ESP_SPP_MODE_CB) {
param.cong.status = p_data->rfc_cong.status;
param.cong.handle = p_data->rfc_cong.handle;
param.cong.cong = p_data->rfc_cong.cong;
btc_spp_cb_to_app(ESP_SPP_CONG_EVT, ¶m);
} else {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->rfc_cong.handle);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
if (!p_data->rfc_cong.cong && !slot->is_writing) {
if (slot->write_data == NULL && slot->write_data_len == 0) {
size_t item_size = 0;
uint8_t *data = xRingbufferReceiveUpTo(slot->ringbuf_write, &item_size, 0, slot->mtu);
if (item_size > 0) {
slot->write_data = data;
slot->write_data_len = item_size;
slot->is_writing = true;
BTA_JvRfcommWrite(p_data->rfc_cong.handle, slot->id, item_size, data);
}
} else {
slot->is_writing = true;
BTA_JvRfcommWrite(p_data->rfc_cong.handle, slot->id, slot->write_data_len, slot->write_data);
}
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
}
break;
case BTA_JV_RFCOMM_DATA_IND_EVT:
do {
BT_HDR *p_buf;
UINT16 count = 0;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_handle(p_data->data_ind.handle);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot, event:%d!", __func__, event);
break;
}
serial = slot->serial;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
while (1) {
// get incoming_data from slot incoming list
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
if ((slot = spp_local_param.spp_slots[serial]) != NULL &&
slot->rfc_handle == p_data->data_ind.handle &&
fixed_queue_length(slot->rx.queue) > 0) {
p_buf = (BT_HDR *)fixed_queue_dequeue(slot->rx.queue, FIXED_QUEUE_MAX_TIMEOUT);
} else {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
// invoke callback
if (p_buf) {
count += 1;
param.data_ind.status = ESP_SPP_SUCCESS;
param.data_ind.handle = p_data->data_ind.handle;
param.data_ind.len = p_buf->len;
param.data_ind.data = p_buf->data + p_buf->offset;
btc_spp_cb_to_app(ESP_SPP_DATA_IND_EVT, ¶m);
BTC_TRACE_DEBUG("data cb to app: len %d\n", p_buf->len);
osi_free(p_buf);
}
}
if (count != 0) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot->credit_rx += count;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTA_JvRfcommFlowControl(p_data->data_ind.handle, count);
BTC_TRACE_DEBUG("%s give credits:%d\n", __func__, count);
}
} while (0);
break;
case BTA_JV_FREE_SCN_EVT:
if (p_data->free_scn.server_status == BTA_JV_SERVER_RUNNING) {
param.srv_stop.status = p_data->free_scn.status;
param.srv_stop.scn = p_data->free_scn.scn;
btc_spp_cb_to_app(ESP_SPP_SRV_STOP_EVT, ¶m);
}
break;
case BTA_JV_DISABLE_EVT:
param.uninit.status = ESP_SPP_SUCCESS;
spp_free_pending_slots();
BTA_JvFree();
osi_mutex_free(&spp_local_param.spp_slot_mutex);
if (spp_local_param.tx_event_group) {
vEventGroupDelete(spp_local_param.tx_event_group);
spp_local_param.tx_event_group = NULL;
}
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
if (spp_local_param.spp_vfs_id != -1) {
esp_vfs_unregister_with_id(spp_local_param.spp_vfs_id);
spp_local_param.spp_vfs_id = -1;
}
}
#if SPP_DYNAMIC_MEMORY == TRUE
osi_free(spp_local_param_ptr);
spp_local_param_ptr = NULL;
#endif
btc_spp_cb_to_app(ESP_SPP_UNINIT_EVT, ¶m);
break;
default:
BTC_TRACE_DEBUG("%s: Unhandled event (%d)!", __FUNCTION__, msg->act);
break;
}
}
int bta_co_rfc_data_incoming(void *user_data, BT_HDR *p_buf)
{
int ret = 1;
bt_status_t status;
tBTA_JV p_data;
btc_msg_t msg;
msg.sig = BTC_SIG_API_CB;
msg.pid = BTC_PID_SPP;
msg.act = BTA_JV_RFCOMM_DATA_IND_EVT;
uint32_t id = (uintptr_t)user_data;
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
return -1;
}
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
spp_slot_t *slot = spp_find_slot_by_id(id);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!", __func__);
return -1;
}
p_data.data_ind.handle = slot->rfc_handle;
p_data.data_ind.p_buf = NULL;
if (spp_local_param.spp_mode == ESP_SPP_MODE_CB) {
size_t rx_len = fixed_queue_length(slot->rx.queue);
fixed_queue_enqueue(slot->rx.queue, p_buf, FIXED_QUEUE_MAX_TIMEOUT);
if (rx_len == 0) {
BTC_TRACE_DEBUG("%s data post! %d, %d", __func__, slot->rfc_handle, rx_len);
status = btc_transfer_context(&msg, &p_data, sizeof(tBTA_JV), NULL, NULL);
assert(status == BT_STATUS_SUCCESS);
}
} else {
fixed_queue_enqueue(slot->rx.queue, p_buf, FIXED_QUEUE_MAX_TIMEOUT);
}
if (--slot->credit_rx == 0) {
BTC_TRACE_DEBUG("%s data post stop! %d %d", __func__, slot->rfc_handle, fixed_queue_length(slot->rx.queue));
ret = 0; // reserved for other flow control
}
if (slot->credit_rx > BTA_JV_MAX_CREDIT_NUM) {
BTC_TRACE_WARNING("%s credit %d", __func__, slot->credit_rx);
assert(0);
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
return ret;
}
int bta_co_rfc_data_outgoing_size(void *user_data, int *size)
{
return 1;
}
int bta_co_rfc_data_outgoing(void *user_data, uint8_t *buf, uint16_t size)
{
return 1;
}
esp_err_t spp_send_data_to_btc(uint32_t handle, int len, uint8_t *p_data, esp_spp_mode_t spp_mode)
{
btc_msg_t msg;
btc_spp_args_t arg;
if (spp_local_param.spp_mode != spp_mode) {
BTC_TRACE_WARNING("The current mode used is %d\n", spp_local_param.spp_mode);
return ESP_ERR_NOT_SUPPORTED;
}
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_SPP;
msg.act = BTC_SPP_ACT_WRITE;
arg.write.handle = handle;
arg.write.len = len;
arg.write.p_data = p_data;
return (btc_transfer_context(&msg, &arg, sizeof(btc_spp_args_t), btc_spp_arg_deep_copy,
btc_spp_arg_deep_free) == BT_STATUS_SUCCESS ? ESP_OK : ESP_FAIL);
}
static ssize_t spp_vfs_write(int fd, const void * data, size_t size)
{
assert(data != NULL);
errno = 0;
if (size == 0) {
return 0;
}
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
errno = ESRCH;
return -1;
}
spp_slot_t *slot = NULL;
uint8_t serial = 0;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_fd(fd);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!", __func__);
errno = ENOENT;
return -1;
}
serial = slot->serial;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
ssize_t sent = 0;
size_t items_waiting = 0;
size_t item_size = 0;
EventBits_t tx_event_group_val = 0;
BaseType_t done = false;
while (size) {
tx_event_group_val = 0;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_local_param.spp_slots[serial];
if (slot && slot->connected) {
items_waiting = 0;
item_size = 0;
vRingbufferGetInfo(slot->ringbuf_write, NULL, NULL, NULL, NULL, &items_waiting);
if (items_waiting < spp_local_param.tx_buffer_size) {
if ((spp_local_param.tx_buffer_size - items_waiting) > size) {
item_size = size;
done = xRingbufferSend(slot->ringbuf_write, (void *)data + sent, item_size, 0);
} else {
item_size = spp_local_param.tx_buffer_size - items_waiting;
done = xRingbufferSend(slot->ringbuf_write, (void *)data + sent, item_size, 0);
}
if (done) {
sent += item_size;
size -= item_size;
if (slot->write_data == NULL) {
spp_send_data_to_btc(slot->rfc_handle, 0, NULL, ESP_SPP_MODE_VFS);
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
continue;
}
}
BTC_TRACE_DEBUG("%s items_waiting:%d, fd:%d\n", __func__, items_waiting, fd);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
// block until under water level, be closed or time out
tx_event_group_val =
xEventGroupWaitBits(spp_local_param.tx_event_group, SLOT_WRITE_BIT(serial) | SLOT_CLOSE_BIT(serial), pdTRUE,
pdFALSE, VFS_WRITE_TIMEOUT / portTICK_PERIOD_MS);
if (tx_event_group_val & SLOT_CLOSE_BIT(serial)) {
BTC_TRACE_ERROR("%s exit for RFCOMM close, fd:%d!", __func__, fd);
errno = EPIPE;
sent = -1;
break;
} else if (tx_event_group_val & SLOT_WRITE_BIT(serial)) {
continue;
} else if (tx_event_group_val == 0) {
BTC_TRACE_ERROR("%s exit for time out, fd:%d!", __func__, fd);
errno = EBUSY;
sent = -1;
break;
}
} else {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
errno = EPIPE;
sent = -1;
break;
}
}
return sent;
}
static int spp_vfs_close(int fd)
{
errno = 0;
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
errno = ESRCH;
return -1;
}
spp_slot_t *slot = NULL;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_fd(fd);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!", __func__);
errno = ENOENT;
return -1;
}
esp_spp_disconnect(slot->rfc_handle);
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
return 0;
}
static ssize_t spp_vfs_read(int fd, void * dst, size_t size)
{
assert(dst != NULL);
errno = 0;
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
errno = ESRCH;
return -1;
}
spp_slot_t *slot = NULL;
uint8_t serial = 0;
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot = spp_find_slot_by_fd(fd);
if (!slot) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s unable to find RFCOMM slot!", __func__);
errno = ENOENT;
return -1;
}
serial = slot->serial;
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
ssize_t item_size = 0;
uint16_t count = 0;
BT_HDR *p_buf;
while (1) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
if ((slot = spp_local_param.spp_slots[serial]) != NULL) {
if (fixed_queue_length(slot->rx.queue) > 0) {
// free unused p_buf
if ((p_buf = (BT_HDR *)fixed_queue_try_peek_first(slot->rx.queue)) != NULL && p_buf->len == 0) {
osi_free(fixed_queue_dequeue(slot->rx.queue, FIXED_QUEUE_MAX_TIMEOUT));
p_buf = NULL;
count++;
}
if (size == 0 || (p_buf = (BT_HDR *)fixed_queue_try_peek_first(slot->rx.queue)) == NULL) {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
}
} else {
/**
* If close_alarm is not NULL, it means that we have received the BTA_JV_RFCOMM_CLOSE_EVT.
* And we can trigger close_alarm immediately.
*/
if (slot->close_alarm && osi_alarm_is_active(slot->close_alarm)) {
osi_alarm_cancel(slot->close_alarm);
osi_alarm_set(slot->close_alarm, 0);
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
break;
}
} else {
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
BTC_TRACE_ERROR("%s peer close, data will be discarded!\n", __func__);
errno = EPIPE;
item_size = -1;
break;
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
if (p_buf->len <= size) {
memcpy(dst, p_buf->data + p_buf->offset, p_buf->len);
size -= p_buf->len;
item_size += p_buf->len;
dst += p_buf->len;
p_buf->offset += p_buf->len;
p_buf->len = 0; // indicate the p_buf is unused
} else {
memcpy(dst, p_buf->data + p_buf->offset, size);
item_size += size;
p_buf->offset += size;
p_buf->len -= size;
size = 0;
}
}
if (count > 0) {
osi_mutex_lock(&spp_local_param.spp_slot_mutex, OSI_MUTEX_MAX_TIMEOUT);
slot->credit_rx += count;
if ((slot = spp_local_param.spp_slots[serial]) != NULL) {
BTA_JvRfcommFlowControl(slot->rfc_handle, count);
BTC_TRACE_DEBUG("%s give credits:%d\n", __func__, count);
}
osi_mutex_unlock(&spp_local_param.spp_slot_mutex);
}
return item_size;
}
static void btc_spp_vfs_register(void)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
esp_spp_cb_param_t param;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
esp_vfs_t vfs = {
.flags = ESP_VFS_FLAG_DEFAULT,
.write = spp_vfs_write,
.open = NULL,
.fstat = NULL,
.close = spp_vfs_close,
.read = spp_vfs_read,
.fcntl = NULL
};
// No FD range is registered here: spp_vfs_id is used to register/unregister
// file descriptors
if (esp_vfs_register_with_id(&vfs, NULL, &spp_local_param.spp_vfs_id) != ESP_OK) {
ret = ESP_SPP_FAILURE;
break;
}
} while (0);
param.vfs_register.status = ret;
btc_spp_cb_to_app(ESP_SPP_VFS_REGISTER_EVT, ¶m);
}
static void btc_spp_vfs_unregister(void)
{
esp_spp_status_t ret = ESP_SPP_SUCCESS;
esp_spp_cb_param_t param;
do {
if (!is_spp_init()) {
BTC_TRACE_ERROR("%s SPP have not been init\n", __func__);
ret = ESP_SPP_NEED_INIT;
break;
}
if (spp_local_param.spp_mode == ESP_SPP_MODE_VFS) {
if (spp_local_param.spp_vfs_id != -1) {
if (esp_vfs_unregister_with_id(spp_local_param.spp_vfs_id) != ESP_OK) {
ret = ESP_SPP_FAILURE;
break;
}
spp_local_param.spp_vfs_id = -1;
}
}
} while (0);
param.vfs_unregister.status = ret;
btc_spp_cb_to_app(ESP_SPP_VFS_UNREGISTER_EVT, ¶m);
}
#endif ///defined BTC_SPP_INCLUDED && BTC_SPP_INCLUDED == TRUE
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