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micropython/ports/nrf/drivers/bluetooth/ble_drv.c
Glenn Ruben Bakke fc1f22a097 nrf/bluetooth: Handle data length update request. 
The Bluetooth link gets disconnected when connecting from a PC after 30-40
seconds.  This commit adds handling of the data length update request.  The
data length parameter pointer is set to NULL in the reply,  letting the
SoftDevice automatically set values and use them in the data length update
procedure.
2020-07-01 22:49:04 +10:00

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 - 2018 Glenn Ruben Bakke
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#if BLUETOOTH_SD
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include "py/runtime.h"
#include "ble_drv.h"
#include "mpconfigport.h"
#include "nrf_sdm.h"
#include "ble_gap.h"
#include "ble.h" // sd_ble_uuid_encode
#include "drivers/flash.h"
#include "mphalport.h"
#if MICROPY_HW_USB_CDC
#include "usb_cdc.h"
#endif
#define BLE_DRIVER_VERBOSE 0
#if BLE_DRIVER_VERBOSE
#define BLE_DRIVER_LOG printf
#else
#define BLE_DRIVER_LOG(...)
#endif
#define BLE_ADV_LENGTH_FIELD_SIZE 1
#define BLE_ADV_AD_TYPE_FIELD_SIZE 1
#define BLE_AD_TYPE_FLAGS_DATA_SIZE 1
#define MSEC_TO_UNITS(TIME, RESOLUTION) (((TIME) * 1000) / (RESOLUTION))
#define UNIT_0_625_MS (625)
#define UNIT_10_MS (10000)
#define APP_CFG_NON_CONN_ADV_TIMEOUT 0 // Disable timeout.
#define NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(100, UNIT_0_625_MS)
#define BLE_MIN_CONN_INTERVAL MSEC_TO_UNITS(12, UNIT_0_625_MS)
#define BLE_MAX_CONN_INTERVAL MSEC_TO_UNITS(12, UNIT_0_625_MS)
#define BLE_SLAVE_LATENCY 0
#define BLE_CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS)
#if (BLUETOOTH_SD == 110)
#define MAX_TX_IN_PROGRESS (6)
#else
#define MAX_TX_IN_PROGRESS (10)
#endif
#if !defined(GATT_MTU_SIZE_DEFAULT) && defined(BLE_GATT_ATT_MTU_DEFAULT)
#define GATT_MTU_SIZE_DEFAULT BLE_GATT_ATT_MTU_DEFAULT
#endif
#define SD_TEST_OR_ENABLE() \
if (ble_drv_stack_enabled() == 0) { \
(void)ble_drv_stack_enable(); \
}
static volatile bool m_adv_in_progress;
static volatile uint8_t m_tx_in_progress;
static ble_drv_gap_evt_callback_t gap_event_handler;
static ble_drv_gatts_evt_callback_t gatts_event_handler;
static mp_obj_t mp_gap_observer;
static mp_obj_t mp_gatts_observer;
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
static volatile bool m_primary_service_found;
static volatile bool m_characteristic_found;
static volatile bool m_write_done;
static volatile ble_drv_adv_evt_callback_t adv_event_handler;
static volatile ble_drv_gattc_evt_callback_t gattc_event_handler;
static volatile ble_drv_disc_add_service_callback_t disc_add_service_handler;
static volatile ble_drv_disc_add_char_callback_t disc_add_char_handler;
static volatile ble_drv_gattc_char_data_callback_t gattc_char_data_handle;
static mp_obj_t mp_adv_observer;
static mp_obj_t mp_gattc_observer;
static mp_obj_t mp_gattc_disc_service_observer;
static mp_obj_t mp_gattc_disc_char_observer;
static mp_obj_t mp_gattc_char_data_observer;
#endif
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
#include "nrf_nvic.h"
#define BLE_GAP_ADV_MAX_SIZE 31
#define BLE_DRV_CONN_CONFIG_TAG 1
static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET;
static uint8_t m_scan_buffer[BLE_GAP_SCAN_BUFFER_MIN];
nrf_nvic_state_t nrf_nvic_state = {{0}, 0};
#endif
#if (BLUETOOTH_SD == 110)
void softdevice_assert_handler(uint32_t pc, uint16_t line_number, const uint8_t * p_file_name) {
BLE_DRIVER_LOG("ERROR: SoftDevice assert!!!");
}
#else
void softdevice_assert_handler(uint32_t id, uint32_t pc, uint32_t info) {
BLE_DRIVER_LOG("ERROR: SoftDevice assert!!!");
}
#endif
uint32_t ble_drv_stack_enable(void) {
m_adv_in_progress = false;
m_tx_in_progress = 0;
#if (BLUETOOTH_SD == 110)
#if BLUETOOTH_LFCLK_RC
uint32_t err_code = sd_softdevice_enable(NRF_CLOCK_LFCLKSRC_RC_250_PPM_250MS_CALIBRATION,
softdevice_assert_handler);
#else
uint32_t err_code = sd_softdevice_enable(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM,
softdevice_assert_handler);
#endif // BLUETOOTH_LFCLK_RC
#endif // (BLUETOOTH_SD == 110)
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
#if BLUETOOTH_LFCLK_RC
nrf_clock_lf_cfg_t clock_config = {
.source = NRF_CLOCK_LF_SRC_RC,
.rc_ctiv = 16,
.rc_temp_ctiv = 2,
.accuracy = NRF_CLOCK_LF_ACCURACY_250_PPM
};
#else
nrf_clock_lf_cfg_t clock_config = {
.source = NRF_CLOCK_LF_SRC_XTAL,
.rc_ctiv = 0,
.rc_temp_ctiv = 0,
.accuracy = NRF_CLOCK_LF_ACCURACY_20_PPM
};
#endif // BLUETOOTH_LFCLK_RC
uint32_t err_code = sd_softdevice_enable(&clock_config,
softdevice_assert_handler);
#endif // (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
BLE_DRIVER_LOG("SoftDevice enable status: " UINT_FMT "\n", (uint16_t)err_code);
err_code = sd_nvic_EnableIRQ(SD_EVT_IRQn);
BLE_DRIVER_LOG("IRQ enable status: " UINT_FMT "\n", (uint16_t)err_code);
#if (BLUETOOTH_SD == 110)
ble_enable_params_t ble_enable_params;
memset(&ble_enable_params, 0x00, sizeof(ble_enable_params));
ble_enable_params.gatts_enable_params.attr_tab_size = BLE_GATTS_ATTR_TAB_SIZE_DEFAULT;
ble_enable_params.gatts_enable_params.service_changed = 0;
#else
ble_cfg_t ble_conf;
uint32_t app_ram_start_cfg = 0x200039c0;
ble_conf.conn_cfg.conn_cfg_tag = BLE_DRV_CONN_CONFIG_TAG;
ble_conf.conn_cfg.params.gap_conn_cfg.conn_count = 2;
ble_conf.conn_cfg.params.gap_conn_cfg.event_length = 3;
err_code = sd_ble_cfg_set(BLE_CONN_CFG_GAP, &ble_conf, app_ram_start_cfg);
BLE_DRIVER_LOG("BLE_CONN_CFG_GAP status: " UINT_FMT "\n", (uint16_t)err_code);
memset(&ble_conf, 0, sizeof(ble_conf));
ble_conf.gap_cfg.role_count_cfg.periph_role_count = 1;
ble_conf.gap_cfg.role_count_cfg.central_role_count = 1;
ble_conf.gap_cfg.role_count_cfg.central_sec_count = 0;
err_code = sd_ble_cfg_set(BLE_GAP_CFG_ROLE_COUNT, &ble_conf, app_ram_start_cfg);
BLE_DRIVER_LOG("BLE_GAP_CFG_ROLE_COUNT status: " UINT_FMT "\n", (uint16_t)err_code);
memset(&ble_conf, 0, sizeof(ble_conf));
ble_conf.conn_cfg.conn_cfg_tag = BLE_DRV_CONN_CONFIG_TAG;
ble_conf.conn_cfg.params.gatts_conn_cfg.hvn_tx_queue_size = MAX_TX_IN_PROGRESS;
err_code = sd_ble_cfg_set(BLE_CONN_CFG_GATTS, &ble_conf, app_ram_start_cfg);
BLE_DRIVER_LOG("BLE_CONN_CFG_GATTS status: " UINT_FMT "\n", (uint16_t)err_code);
#endif
#if (BLUETOOTH_SD == 110)
err_code = sd_ble_enable(&ble_enable_params);
#else
uint32_t app_ram_start = 0x200039c0;
err_code = sd_ble_enable(&app_ram_start); // 8K SD headroom from linker script.
BLE_DRIVER_LOG("BLE ram size: " UINT_FMT "\n", (uint16_t)app_ram_start);
#endif
BLE_DRIVER_LOG("BLE enable status: " UINT_FMT "\n", (uint16_t)err_code);
// set up security mode
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
const char device_name[] = "micr";
if ((err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)device_name,
strlen(device_name))) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't apply GAP parameters"));
}
// set connection parameters
memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = BLE_MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = BLE_MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = BLE_SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = BLE_CONN_SUP_TIMEOUT;
if (sd_ble_gap_ppcp_set(&gap_conn_params) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't set PPCP parameters"));
}
return err_code;
}
void ble_drv_stack_disable(void) {
sd_softdevice_disable();
}
uint8_t ble_drv_stack_enabled(void) {
uint8_t is_enabled;
uint32_t err_code = sd_softdevice_is_enabled(&is_enabled);
(void)err_code;
BLE_DRIVER_LOG("Is enabled status: " UINT_FMT "\n", (uint16_t)err_code);
return is_enabled;
}
void ble_drv_address_get(ble_drv_addr_t * p_addr) {
SD_TEST_OR_ENABLE();
ble_gap_addr_t local_ble_addr;
#if (BLUETOOTH_SD == 110)
uint32_t err_code = sd_ble_gap_address_get(&local_ble_addr);
#else
uint32_t err_code = sd_ble_gap_addr_get(&local_ble_addr);
#endif
if (err_code != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't query for the device address"));
}
BLE_DRIVER_LOG("ble address, type: " HEX2_FMT ", " \
"address: " HEX2_FMT ":" HEX2_FMT ":" HEX2_FMT ":" \
HEX2_FMT ":" HEX2_FMT ":" HEX2_FMT "\n", \
local_ble_addr.addr_type, \
local_ble_addr.addr[5], local_ble_addr.addr[4], local_ble_addr.addr[3], \
local_ble_addr.addr[2], local_ble_addr.addr[1], local_ble_addr.addr[0]);
p_addr->addr_type = local_ble_addr.addr_type;
memcpy(p_addr->addr, local_ble_addr.addr, 6);
}
bool ble_drv_uuid_add_vs(uint8_t * p_uuid, uint8_t * idx) {
SD_TEST_OR_ENABLE();
if (sd_ble_uuid_vs_add((ble_uuid128_t const *)p_uuid, idx) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't add Vendor Specific 128-bit UUID"));
}
return true;
}
bool ble_drv_service_add(ubluepy_service_obj_t * p_service_obj) {
SD_TEST_OR_ENABLE();
if (p_service_obj->p_uuid->type > BLE_UUID_TYPE_BLE) {
ble_uuid_t uuid;
uuid.type = p_service_obj->p_uuid->uuid_vs_idx;
uuid.uuid = p_service_obj->p_uuid->value[0];
uuid.uuid += p_service_obj->p_uuid->value[1] << 8;
if (sd_ble_gatts_service_add(p_service_obj->type,
&uuid,
&p_service_obj->handle) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't add Service"));
}
} else if (p_service_obj->p_uuid->type == BLE_UUID_TYPE_BLE) {
BLE_DRIVER_LOG("adding service\n");
ble_uuid_t uuid;
uuid.type = p_service_obj->p_uuid->type;
uuid.uuid = p_service_obj->p_uuid->value[0];
uuid.uuid += p_service_obj->p_uuid->value[1] << 8;
if (sd_ble_gatts_service_add(p_service_obj->type,
&uuid,
&p_service_obj->handle) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't add Service"));
}
}
return true;
}
bool ble_drv_characteristic_add(ubluepy_characteristic_obj_t * p_char_obj) {
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.broadcast = (p_char_obj->props & UBLUEPY_PROP_BROADCAST) ? 1 : 0;
char_md.char_props.read = (p_char_obj->props & UBLUEPY_PROP_READ) ? 1 : 0;
char_md.char_props.write_wo_resp = (p_char_obj->props & UBLUEPY_PROP_WRITE_WO_RESP) ? 1 : 0;
char_md.char_props.write = (p_char_obj->props & UBLUEPY_PROP_WRITE) ? 1 : 0;
char_md.char_props.notify = (p_char_obj->props & UBLUEPY_PROP_NOTIFY) ? 1 : 0;
char_md.char_props.indicate = (p_char_obj->props & UBLUEPY_PROP_INDICATE) ? 1 : 0;
#if 0
char_md.char_props.auth_signed_wr = (p_char_obj->props & UBLUEPY_PROP_NOTIFY) ? 1 : 0;
#endif
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_sccd_md = NULL;
// if cccd
if (p_char_obj->attrs & UBLUEPY_ATTR_CCCD) {
memset(&cccd_md, 0, sizeof(cccd_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
char_md.p_cccd_md = &cccd_md;
} else {
char_md.p_cccd_md = NULL;
}
uuid.type = p_char_obj->p_uuid->type;
uuid.uuid = p_char_obj->p_uuid->value[0];
uuid.uuid += p_char_obj->p_uuid->value[1] << 8;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = (GATT_MTU_SIZE_DEFAULT - 3);
ble_gatts_char_handles_t handles;
if (sd_ble_gatts_characteristic_add(p_char_obj->service_handle,
&char_md,
&attr_char_value,
&handles) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't add Characteristic"));
}
// apply handles to object instance
p_char_obj->handle = handles.value_handle;
p_char_obj->user_desc_handle = handles.user_desc_handle;
p_char_obj->cccd_handle = handles.cccd_handle;
p_char_obj->sccd_handle = handles.sccd_handle;
return true;
}
bool ble_drv_advertise_data(ubluepy_advertise_data_t * p_adv_params) {
SD_TEST_OR_ENABLE();
uint8_t byte_pos = 0;
static uint8_t adv_data[BLE_GAP_ADV_MAX_SIZE];
if (p_adv_params->device_name_len > 0) {
ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
if (sd_ble_gap_device_name_set(&sec_mode,
p_adv_params->p_device_name,
p_adv_params->device_name_len) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't apply device name in the stack"));
}
BLE_DRIVER_LOG("Device name applied\n");
adv_data[byte_pos] = (BLE_ADV_AD_TYPE_FIELD_SIZE + p_adv_params->device_name_len);
byte_pos += BLE_ADV_LENGTH_FIELD_SIZE;
adv_data[byte_pos] = BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME;
byte_pos += BLE_ADV_AD_TYPE_FIELD_SIZE;
memcpy(&adv_data[byte_pos], p_adv_params->p_device_name, p_adv_params->device_name_len);
// increment position counter to see if it fits, and in case more content should
// follow in this adv packet.
byte_pos += p_adv_params->device_name_len;
}
// Add FLAGS only if manually controlled data has not been used.
if (p_adv_params->data_len == 0) {
// set flags, default to disc mode
adv_data[byte_pos] = (BLE_ADV_AD_TYPE_FIELD_SIZE + BLE_AD_TYPE_FLAGS_DATA_SIZE);
byte_pos += BLE_ADV_LENGTH_FIELD_SIZE;
adv_data[byte_pos] = BLE_GAP_AD_TYPE_FLAGS;
byte_pos += BLE_AD_TYPE_FLAGS_DATA_SIZE;
adv_data[byte_pos] = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
byte_pos += 1;
}
if (p_adv_params->num_of_services > 0) {
bool type_16bit_present = false;
bool type_128bit_present = false;
for (uint8_t i = 0; i < p_adv_params->num_of_services; i++) {
ubluepy_service_obj_t * p_service = (ubluepy_service_obj_t *)p_adv_params->p_services[i];
if (p_service->p_uuid->type == UBLUEPY_UUID_16_BIT) {
type_16bit_present = true;
}
if (p_service->p_uuid->type == UBLUEPY_UUID_128_BIT) {
type_128bit_present = true;
}
}
if (type_16bit_present) {
uint8_t size_byte_pos = byte_pos;
// skip length byte for now, apply total length post calculation
byte_pos += BLE_ADV_LENGTH_FIELD_SIZE;
adv_data[byte_pos] = BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_COMPLETE;
byte_pos += BLE_ADV_AD_TYPE_FIELD_SIZE;
uint8_t uuid_total_size = 0;
uint8_t encoded_size = 0;
for (uint8_t i = 0; i < p_adv_params->num_of_services; i++) {
ubluepy_service_obj_t * p_service = (ubluepy_service_obj_t *)p_adv_params->p_services[i];
ble_uuid_t uuid;
uuid.type = p_service->p_uuid->type;
uuid.uuid = p_service->p_uuid->value[0];
uuid.uuid += p_service->p_uuid->value[1] << 8;
// calculate total size of uuids
if (sd_ble_uuid_encode(&uuid, &encoded_size, NULL) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't encode UUID, to check length"));
}
// do encoding into the adv buffer
if (sd_ble_uuid_encode(&uuid, &encoded_size, &adv_data[byte_pos]) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't encode UUID into advertisment packet"));
}
BLE_DRIVER_LOG("encoded uuid for service %u: ", 0);
for (uint8_t j = 0; j < encoded_size; j++) {
BLE_DRIVER_LOG(HEX2_FMT " ", adv_data[byte_pos + j]);
}
BLE_DRIVER_LOG("\n");
uuid_total_size += encoded_size; // size of entry
byte_pos += encoded_size; // relative to adv data packet
BLE_DRIVER_LOG("ADV: uuid size: %u, type: %u, uuid: %x%x, vs_idx: %u\n",
encoded_size, p_service->p_uuid->type,
p_service->p_uuid->value[1],
p_service->p_uuid->value[0],
p_service->p_uuid->uuid_vs_idx);
}
adv_data[size_byte_pos] = (BLE_ADV_AD_TYPE_FIELD_SIZE + uuid_total_size);
}
if (type_128bit_present) {
uint8_t size_byte_pos = byte_pos;
// skip length byte for now, apply total length post calculation
byte_pos += BLE_ADV_LENGTH_FIELD_SIZE;
adv_data[byte_pos] = BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE;
byte_pos += BLE_ADV_AD_TYPE_FIELD_SIZE;
uint8_t uuid_total_size = 0;
uint8_t encoded_size = 0;
for (uint8_t i = 0; i < p_adv_params->num_of_services; i++) {
ubluepy_service_obj_t * p_service = (ubluepy_service_obj_t *)p_adv_params->p_services[i];
ble_uuid_t uuid;
uuid.type = p_service->p_uuid->uuid_vs_idx;
uuid.uuid = p_service->p_uuid->value[0];
uuid.uuid += p_service->p_uuid->value[1] << 8;
// calculate total size of uuids
if (sd_ble_uuid_encode(&uuid, &encoded_size, NULL) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't encode UUID, to check length"));
}
// do encoding into the adv buffer
if (sd_ble_uuid_encode(&uuid, &encoded_size, &adv_data[byte_pos]) != 0) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't encode UUID into advertisment packet"));
}
BLE_DRIVER_LOG("encoded uuid for service %u: ", 0);
for (uint8_t j = 0; j < encoded_size; j++) {
BLE_DRIVER_LOG(HEX2_FMT " ", adv_data[byte_pos + j]);
}
BLE_DRIVER_LOG("\n");
uuid_total_size += encoded_size; // size of entry
byte_pos += encoded_size; // relative to adv data packet
BLE_DRIVER_LOG("ADV: uuid size: %u, type: %x%x, uuid: %u, vs_idx: %u\n",
encoded_size, p_service->p_uuid->type,
p_service->p_uuid->value[1],
p_service->p_uuid->value[0],
p_service->p_uuid->uuid_vs_idx);
}
adv_data[size_byte_pos] = (BLE_ADV_AD_TYPE_FIELD_SIZE + uuid_total_size);
}
}
if ((p_adv_params->data_len > 0) && (p_adv_params->p_data != NULL)) {
if (p_adv_params->data_len + byte_pos > BLE_GAP_ADV_MAX_SIZE) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("can't fit data into advertisment packet"));
}
memcpy(adv_data, p_adv_params->p_data, p_adv_params->data_len);
byte_pos += p_adv_params->data_len;
}
// scan response data not set
uint32_t err_code;
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
const ble_gap_adv_data_t m_adv_data = {
.adv_data.p_data = adv_data,
.adv_data.len = byte_pos,
.scan_rsp_data.p_data = NULL,
.scan_rsp_data.len = 0
};
#endif
static ble_gap_adv_params_t m_adv_params;
memset(&m_adv_params, 0, sizeof(m_adv_params));
// initialize advertising params
if (p_adv_params->connectable) {
#if (BLUETOOTH_SD == 110)
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND;
#else
m_adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
#endif
} else {
#if (BLUETOOTH_SD == 110)
m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_NONCONN_IND;
#else
m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_SCANNABLE_UNDIRECTED;
#endif
}
#if (BLUETOOTH_SD == 110)
m_adv_params.fp = BLE_GAP_ADV_FP_ANY;
m_adv_params.timeout = 0; // infinite advertisment
#else
m_adv_params.properties.anonymous = 0;
m_adv_params.properties.include_tx_power = 0;
m_adv_params.filter_policy = 0;
m_adv_params.max_adv_evts = 0; // infinite advertisment
m_adv_params.primary_phy = BLE_GAP_PHY_AUTO;
m_adv_params.secondary_phy = BLE_GAP_PHY_AUTO;
m_adv_params.scan_req_notification = 0; // Do not raise scan request notifications when scanned.
#endif
m_adv_params.p_peer_addr = NULL; // undirected advertisement
m_adv_params.interval = MSEC_TO_UNITS(100, UNIT_0_625_MS); // approx 8 ms
#if (BLUETOOTH_SD == 110)
if ((err_code = sd_ble_gap_adv_data_set(adv_data, byte_pos, NULL, 0)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not apply advertisment data. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
#else
if ((err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &m_adv_params)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not apply advertisment data. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
#endif
BLE_DRIVER_LOG("Set Adv data size: " UINT_FMT "\n", byte_pos);
ble_drv_advertise_stop();
#if (BLUETOOTH_SD == 110)
err_code = sd_ble_gap_adv_start(&m_adv_params);
#else
uint8_t conf_tag = BLE_DRV_CONN_CONFIG_TAG; // Could also be set to tag from sd_ble_cfg_set
err_code = sd_ble_gap_adv_start(m_adv_handle, conf_tag);
#endif
if (err_code != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not start advertisment. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
m_adv_in_progress = true;
return true;
}
void ble_drv_advertise_stop(void) {
if (m_adv_in_progress == true) {
uint32_t err_code;
#if (BLUETOOTH_SD == 110)
if ((err_code = sd_ble_gap_adv_stop()) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not stop advertisment. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
#else
if ((err_code = sd_ble_gap_adv_stop(m_adv_handle)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not stop advertisment. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
#endif
}
m_adv_in_progress = false;
}
void ble_drv_attr_s_read(uint16_t conn_handle, uint16_t handle, uint16_t len, uint8_t * p_data) {
ble_gatts_value_t gatts_value;
memset(&gatts_value, 0, sizeof(gatts_value));
gatts_value.len = len;
gatts_value.offset = 0;
gatts_value.p_value = p_data;
uint32_t err_code = sd_ble_gatts_value_get(conn_handle,
handle,
&gatts_value);
if (err_code != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not read attribute value. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
}
void ble_drv_attr_s_write(uint16_t conn_handle, uint16_t handle, uint16_t len, uint8_t * p_data) {
ble_gatts_value_t gatts_value;
memset(&gatts_value, 0, sizeof(gatts_value));
gatts_value.len = len;
gatts_value.offset = 0;
gatts_value.p_value = p_data;
uint32_t err_code = sd_ble_gatts_value_set(conn_handle, handle, &gatts_value);
if (err_code != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not write attribute value. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
}
void ble_drv_attr_s_notify(uint16_t conn_handle, uint16_t handle, uint16_t len, uint8_t * p_data) {
uint16_t hvx_len = len;
ble_gatts_hvx_params_t hvx_params;
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = handle;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
hvx_params.offset = 0;
hvx_params.p_len = &hvx_len;
hvx_params.p_data = p_data;
while (m_tx_in_progress > MAX_TX_IN_PROGRESS) {
;
}
BLE_DRIVER_LOG("Request TX, m_tx_in_progress: %u\n", m_tx_in_progress);
uint32_t err_code;
if ((err_code = sd_ble_gatts_hvx(conn_handle, &hvx_params)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not notify attribute value. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
m_tx_in_progress++;
BLE_DRIVER_LOG("Queued TX, m_tx_in_progress: %u\n", m_tx_in_progress);
}
void ble_drv_gap_event_handler_set(mp_obj_t obj, ble_drv_gap_evt_callback_t evt_handler) {
mp_gap_observer = obj;
gap_event_handler = evt_handler;
}
void ble_drv_gatts_event_handler_set(mp_obj_t obj, ble_drv_gatts_evt_callback_t evt_handler) {
mp_gatts_observer = obj;
gatts_event_handler = evt_handler;
}
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
void ble_drv_gattc_event_handler_set(mp_obj_t obj, ble_drv_gattc_evt_callback_t evt_handler) {
mp_gattc_observer = obj;
gattc_event_handler = evt_handler;
}
void ble_drv_adv_report_handler_set(mp_obj_t obj, ble_drv_adv_evt_callback_t evt_handler) {
mp_adv_observer = obj;
adv_event_handler = evt_handler;
}
void ble_drv_attr_c_read(uint16_t conn_handle, uint16_t handle, mp_obj_t obj, ble_drv_gattc_char_data_callback_t cb) {
mp_gattc_char_data_observer = obj;
gattc_char_data_handle = cb;
uint32_t err_code = sd_ble_gattc_read(conn_handle,
handle,
0);
if (err_code != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not read attribute value. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
while (gattc_char_data_handle != NULL) {
;
}
}
void ble_drv_attr_c_write(uint16_t conn_handle, uint16_t handle, uint16_t len, uint8_t * p_data, bool w_response) {
ble_gattc_write_params_t write_params;
if (w_response) {
write_params.write_op = BLE_GATT_OP_WRITE_REQ;
} else {
write_params.write_op = BLE_GATT_OP_WRITE_CMD;
}
write_params.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_CANCEL;
write_params.handle = handle;
write_params.offset = 0;
write_params.len = len;
write_params.p_value = p_data;
m_write_done = !w_response;
uint32_t err_code = sd_ble_gattc_write(conn_handle, &write_params);
if (err_code != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not write attribute value. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
while (m_write_done != true) {
;
}
}
void ble_drv_scan_start(bool cont) {
SD_TEST_OR_ENABLE();
ble_gap_scan_params_t scan_params;
memset(&scan_params, 0, sizeof(ble_gap_scan_params_t));
scan_params.extended = 0;
scan_params.active = 1;
scan_params.interval = MSEC_TO_UNITS(100, UNIT_0_625_MS);
scan_params.window = MSEC_TO_UNITS(100, UNIT_0_625_MS);
scan_params.timeout = 0; // Infinite
ble_data_t scan_buffer = {
.p_data = m_scan_buffer,
.len = BLE_GAP_SCAN_BUFFER_MIN
};
uint32_t err_code;
ble_gap_scan_params_t * p_scan_params = &scan_params;
if (cont) {
p_scan_params = NULL;
}
if ((err_code = sd_ble_gap_scan_start(p_scan_params, &scan_buffer)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not start scanning. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
}
void ble_drv_scan_stop(void) {
sd_ble_gap_scan_stop();
}
void ble_drv_connect(uint8_t * p_addr, uint8_t addr_type) {
SD_TEST_OR_ENABLE();
ble_gap_scan_params_t scan_params;
memset(&scan_params, 0, sizeof(ble_gap_scan_params_t));
scan_params.extended = 0;
scan_params.active = 1;
scan_params.interval = MSEC_TO_UNITS(100, UNIT_0_625_MS);
scan_params.window = MSEC_TO_UNITS(100, UNIT_0_625_MS);
scan_params.timeout = 0; // infinite
ble_gap_addr_t addr;
memset(&addr, 0, sizeof(addr));
addr.addr_type = addr_type;
memcpy(addr.addr, p_addr, 6);
BLE_DRIVER_LOG("GAP CONNECTING: "HEX2_FMT":"HEX2_FMT":"HEX2_FMT":"HEX2_FMT":"HEX2_FMT":"HEX2_FMT", type: %d\n",
addr.addr[0], addr.addr[1], addr.addr[2], addr.addr[3], addr.addr[4], addr.addr[5], addr.addr_type);
ble_gap_conn_params_t conn_params;
// set connection parameters
memset(&conn_params, 0, sizeof(conn_params));
conn_params.min_conn_interval = BLE_MIN_CONN_INTERVAL;
conn_params.max_conn_interval = BLE_MAX_CONN_INTERVAL;
conn_params.slave_latency = BLE_SLAVE_LATENCY;
conn_params.conn_sup_timeout = BLE_CONN_SUP_TIMEOUT;
uint8_t conn_tag = BLE_DRV_CONN_CONFIG_TAG;
uint32_t err_code;
if ((err_code = sd_ble_gap_connect(&addr,
&scan_params,
&conn_params,
conn_tag)) != 0) {
mp_raise_msg_varg(&mp_type_OSError,
MP_ERROR_TEXT("Can not connect. status: 0x" HEX2_FMT), (uint16_t)err_code);
}
}
bool ble_drv_discover_services(mp_obj_t obj, uint16_t conn_handle, uint16_t start_handle, ble_drv_disc_add_service_callback_t cb) {
BLE_DRIVER_LOG("Discover primary services. Conn handle: 0x" HEX2_FMT "\n",
conn_handle);
mp_gattc_disc_service_observer = obj;
disc_add_service_handler = cb;
m_primary_service_found = false;
uint32_t err_code;
err_code = sd_ble_gattc_primary_services_discover(conn_handle,
start_handle,
NULL);
if (err_code != 0) {
return false;
}
// busy loop until last service has been iterated
while (disc_add_service_handler != NULL) {
;
}
if (m_primary_service_found) {
return true;
} else {
return false;
}
}
bool ble_drv_discover_characteristic(mp_obj_t obj,
uint16_t conn_handle,
uint16_t start_handle,
uint16_t end_handle,
ble_drv_disc_add_char_callback_t cb) {
BLE_DRIVER_LOG("Discover characteristicts. Conn handle: 0x" HEX2_FMT "\n",
conn_handle);
mp_gattc_disc_char_observer = obj;
disc_add_char_handler = cb;
ble_gattc_handle_range_t handle_range;
handle_range.start_handle = start_handle;
handle_range.end_handle = end_handle;
m_characteristic_found = false;
uint32_t err_code;
err_code = sd_ble_gattc_characteristics_discover(conn_handle, &handle_range);
if (err_code != 0) {
return false;
}
// busy loop until last service has been iterated
while (disc_add_char_handler != NULL) {
;
}
if (m_characteristic_found) {
return true;
} else {
return false;
}
}
void ble_drv_discover_descriptors(void) {
}
#endif // (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
static void sd_evt_handler(uint32_t evt_id) {
switch (evt_id) {
#if MICROPY_MBFS
case NRF_EVT_FLASH_OPERATION_SUCCESS:
flash_operation_finished(FLASH_STATE_SUCCESS);
break;
case NRF_EVT_FLASH_OPERATION_ERROR:
flash_operation_finished(FLASH_STATE_ERROR);
break;
#endif
default:
// unhandled event!
break;
}
#if MICROPY_HW_USB_CDC
// Farward SOC events to USB CDC driver.
usb_cdc_sd_event_handler(evt_id);
#endif
}
static void ble_evt_handler(ble_evt_t * p_ble_evt) {
// S132 event ranges.
// Common 0x01 -> 0x0F
// GAP 0x10 -> 0x2F
// GATTC 0x30 -> 0x4F
// GATTS 0x50 -> 0x6F
// L2CAP 0x70 -> 0x8F
switch (p_ble_evt->header.evt_id) {
case BLE_GAP_EVT_CONNECTED:
BLE_DRIVER_LOG("GAP CONNECT\n");
m_adv_in_progress = false;
gap_event_handler(mp_gap_observer, p_ble_evt->header.evt_id, p_ble_evt->evt.gap_evt.conn_handle, p_ble_evt->header.evt_len - (2 * sizeof(uint16_t)), NULL);
ble_gap_conn_params_t conn_params;
(void)sd_ble_gap_ppcp_get(&conn_params);
(void)sd_ble_gap_conn_param_update(p_ble_evt->evt.gap_evt.conn_handle, &conn_params);
break;
case BLE_GAP_EVT_DISCONNECTED:
BLE_DRIVER_LOG("GAP DISCONNECT\n");
gap_event_handler(mp_gap_observer, p_ble_evt->header.evt_id, p_ble_evt->evt.gap_evt.conn_handle, p_ble_evt->header.evt_len - (2 * sizeof(uint16_t)), NULL);
break;
case BLE_GATTS_EVT_HVC:
gatts_event_handler(mp_gatts_observer, p_ble_evt->header.evt_id, p_ble_evt->evt.gatts_evt.params.hvc.handle, p_ble_evt->header.evt_len - (2 * sizeof(uint16_t)), NULL);
break;
case BLE_GATTS_EVT_WRITE:
BLE_DRIVER_LOG("GATTS write\n");
uint16_t handle = p_ble_evt->evt.gatts_evt.params.write.handle;
uint16_t data_len = p_ble_evt->evt.gatts_evt.params.write.len;
uint8_t * p_data = &p_ble_evt->evt.gatts_evt.params.write.data[0];
gatts_event_handler(mp_gatts_observer, p_ble_evt->header.evt_id, handle, data_len, p_data);
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE:
BLE_DRIVER_LOG("GAP CONN PARAM UPDATE\n");
break;
case BLE_GATTS_EVT_SYS_ATTR_MISSING:
// No system attributes have been stored.
(void)sd_ble_gatts_sys_attr_set(p_ble_evt->evt.gatts_evt.conn_handle, NULL, 0, 0);
break;
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
case BLE_GATTS_EVT_HVN_TX_COMPLETE:
#else
case BLE_EVT_TX_COMPLETE:
#endif
BLE_DRIVER_LOG("BLE EVT TX COMPLETE\n");
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
BLE_DRIVER_LOG("HVN_TX_COMPLETE, count: %u\n", p_ble_evt->evt.gatts_evt.params.hvn_tx_complete.count);
m_tx_in_progress -= p_ble_evt->evt.gatts_evt.params.hvn_tx_complete.count;
BLE_DRIVER_LOG("TX_COMPLETE, m_tx_in_progress: %u\n", m_tx_in_progress);
#else
BLE_DRIVER_LOG("TX_COMPLETE, count: %u\n", p_ble_evt->evt.common_evt.params.tx_complete.count);
m_tx_in_progress -= p_ble_evt->evt.common_evt.params.tx_complete.count;
BLE_DRIVER_LOG("TX_COMPLETE, m_tx_in_progress: %u\n", m_tx_in_progress);
#endif
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
BLE_DRIVER_LOG("BLE EVT SEC PARAMS REQUEST\n");
// pairing not supported
(void)sd_ble_gap_sec_params_reply(p_ble_evt->evt.gatts_evt.conn_handle,
BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
NULL, NULL);
break;
#if (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
case BLE_GAP_EVT_ADV_REPORT:
BLE_DRIVER_LOG("BLE EVT ADV REPORT\n");
ble_drv_adv_data_t adv_data = {
.p_peer_addr = p_ble_evt->evt.gap_evt.params.adv_report.peer_addr.addr,
.addr_type = p_ble_evt->evt.gap_evt.params.adv_report.peer_addr.addr_type,
.is_scan_resp = p_ble_evt->evt.gap_evt.params.adv_report.type.scan_response,
.rssi = p_ble_evt->evt.gap_evt.params.adv_report.rssi,
.data_len = p_ble_evt->evt.gap_evt.params.adv_report.data.len,
.p_data = p_ble_evt->evt.gap_evt.params.adv_report.data.p_data,
// .adv_type =
};
// TODO: Fix unsafe callback to possible undefined callback...
adv_event_handler(mp_adv_observer,
p_ble_evt->header.evt_id,
&adv_data);
break;
case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
BLE_DRIVER_LOG("BLE EVT CONN PARAM UPDATE REQUEST\n");
(void)sd_ble_gap_conn_param_update(p_ble_evt->evt.gap_evt.conn_handle,
&p_ble_evt->evt.gap_evt.params.conn_param_update_request.conn_params);
break;
case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
BLE_DRIVER_LOG("BLE EVT PRIMARY SERVICE DISCOVERY RESPONSE\n");
BLE_DRIVER_LOG(">>> service count: %d\n", p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count);
for (uint16_t i = 0; i < p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count; i++) {
ble_gattc_service_t * p_service = &p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[i];
ble_drv_service_data_t service;
service.uuid_type = p_service->uuid.type;
service.uuid = p_service->uuid.uuid;
service.start_handle = p_service->handle_range.start_handle;
service.end_handle = p_service->handle_range.end_handle;
disc_add_service_handler(mp_gattc_disc_service_observer, &service);
}
if (p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count > 0) {
m_primary_service_found = true;
}
// mark end of service discovery
disc_add_service_handler = NULL;
break;
case BLE_GATTC_EVT_CHAR_DISC_RSP:
BLE_DRIVER_LOG("BLE EVT CHAR DISCOVERY RESPONSE\n");
BLE_DRIVER_LOG(">>> characteristic count: %d\n", p_ble_evt->evt.gattc_evt.params.char_disc_rsp.count);
for (uint16_t i = 0; i < p_ble_evt->evt.gattc_evt.params.char_disc_rsp.count; i++) {
ble_gattc_char_t * p_char = &p_ble_evt->evt.gattc_evt.params.char_disc_rsp.chars[i];
ble_drv_char_data_t char_data;
char_data.uuid_type = p_char->uuid.type;
char_data.uuid = p_char->uuid.uuid;
char_data.decl_handle = p_char->handle_decl;
char_data.value_handle = p_char->handle_value;
char_data.props = (p_char->char_props.broadcast) ? UBLUEPY_PROP_BROADCAST : 0;
char_data.props |= (p_char->char_props.read) ? UBLUEPY_PROP_READ : 0;
char_data.props |= (p_char->char_props.write_wo_resp) ? UBLUEPY_PROP_WRITE_WO_RESP : 0;
char_data.props |= (p_char->char_props.write) ? UBLUEPY_PROP_WRITE : 0;
char_data.props |= (p_char->char_props.notify) ? UBLUEPY_PROP_NOTIFY : 0;
char_data.props |= (p_char->char_props.indicate) ? UBLUEPY_PROP_INDICATE : 0;
#if 0
char_data.props |= (p_char->char_props.auth_signed_wr) ? UBLUEPY_PROP_NOTIFY : 0;
#endif
disc_add_char_handler(mp_gattc_disc_char_observer, &char_data);
}
if (p_ble_evt->evt.gattc_evt.params.char_disc_rsp.count > 0) {
m_characteristic_found = true;
}
// mark end of characteristic discovery
disc_add_char_handler = NULL;
break;
case BLE_GATTC_EVT_READ_RSP:
BLE_DRIVER_LOG("BLE EVT READ RESPONSE, offset: 0x"HEX2_FMT", length: 0x"HEX2_FMT"\n",
p_ble_evt->evt.gattc_evt.params.read_rsp.offset,
p_ble_evt->evt.gattc_evt.params.read_rsp.len);
gattc_char_data_handle(mp_gattc_char_data_observer,
p_ble_evt->evt.gattc_evt.params.read_rsp.len,
p_ble_evt->evt.gattc_evt.params.read_rsp.data);
// mark end of read
gattc_char_data_handle = NULL;
break;
case BLE_GATTC_EVT_WRITE_RSP:
BLE_DRIVER_LOG("BLE EVT WRITE RESPONSE\n");
m_write_done = true;
break;
case BLE_GATTC_EVT_HVX:
BLE_DRIVER_LOG("BLE EVT HVX RESPONSE\n");
break;
case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
BLE_DRIVER_LOG("GATTS EVT EXCHANGE MTU REQUEST\n");
(void)sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle, 23); // MAX MTU size
break;
case BLE_GAP_EVT_DATA_LENGTH_UPDATE_REQUEST:
BLE_DRIVER_LOG("BLE GAP EVT DATA LENGTH UPDATE REQUEST\n");
sd_ble_gap_data_length_update(p_ble_evt->evt.gap_evt.conn_handle, NULL, NULL);
break;
#endif // (BLUETOOTH_SD == 132) || (BLUETOOTH_SD == 140)
default:
BLE_DRIVER_LOG(">>> unhandled evt: 0x" HEX2_FMT "\n", p_ble_evt->header.evt_id);
break;
}
}
static uint8_t m_ble_evt_buf[sizeof(ble_evt_t) + (GATT_MTU_SIZE_DEFAULT)] __attribute__ ((aligned (4)));
#ifdef NRF51
void SWI2_IRQHandler(void) {
#else
void SWI2_EGU2_IRQHandler(void) {
#endif
uint32_t evt_id;
while (sd_evt_get(&evt_id) != NRF_ERROR_NOT_FOUND) {
sd_evt_handler(evt_id);
}
while (1) {
uint16_t evt_len = sizeof(m_ble_evt_buf);
uint32_t err_code = sd_ble_evt_get(m_ble_evt_buf, &evt_len);
if (err_code != NRF_SUCCESS) {
// Possible error conditions:
// * NRF_ERROR_NOT_FOUND: no events left, break
// * NRF_ERROR_DATA_SIZE: retry with a bigger data buffer
// (currently not handled, TODO)
// * NRF_ERROR_INVALID_ADDR: pointer is not aligned, should
// not happen.
// In all cases, it's best to simply stop now.
if (err_code == NRF_ERROR_DATA_SIZE) {
BLE_DRIVER_LOG("NRF_ERROR_DATA_SIZE\n");
}
break;
}
ble_evt_handler((ble_evt_t *)m_ble_evt_buf);
}
}
#endif // BLUETOOTH_SD
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