circuitpython/ports/nrf/common-hal/bleio/Adapter.c

144 lines
4.7 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Glenn Ruben Bakke
* Copyright (c) 2018 Artur Pacholec
*
* 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.
*/
#include <stdio.h>
#include <string.h>
#include "ble.h"
#include "ble_drv.h"
#include "nrfx_power.h"
#include "nrf_nvic.h"
#include "nrf_sdm.h"
#include "py/runtime.h"
#include "shared-bindings/bleio/Adapter.h"
STATIC void softdevice_assert_handler(uint32_t id, uint32_t pc, uint32_t info) {
mp_raise_msg_varg(&mp_type_AssertionError,
translate("Soft device assert, id: 0x%08lX, pc: 0x%08lX"), id, pc);
}
STATIC uint32_t ble_stack_enable(void) {
nrf_clock_lf_cfg_t clock_config = {
.source = NRF_CLOCK_LF_SRC_XTAL,
.accuracy = NRF_CLOCK_LF_ACCURACY_20_PPM
};
// The SD takes over the POWER IRQ and will fail if the IRQ is already in use
nrfx_power_uninit();
uint32_t err_code = sd_softdevice_enable(&clock_config, softdevice_assert_handler);
if (err_code != NRF_SUCCESS)
return err_code;
err_code = sd_nvic_EnableIRQ(SD_EVT_IRQn);
if (err_code != NRF_SUCCESS)
return err_code;
// Start with no event handlers, etc.
ble_drv_reset();
uint32_t app_ram_start;
app_ram_start = 0x20004000;
ble_cfg_t ble_conf;
ble_conf.conn_cfg.conn_cfg_tag = BLE_CONN_CFG_TAG_CUSTOM;
ble_conf.conn_cfg.params.gap_conn_cfg.conn_count = BLE_GAP_CONN_COUNT_DEFAULT;
ble_conf.conn_cfg.params.gap_conn_cfg.event_length = BLE_GAP_EVENT_LENGTH_DEFAULT;
err_code = sd_ble_cfg_set(BLE_CONN_CFG_GAP, &ble_conf, app_ram_start);
if (err_code != NRF_SUCCESS)
return 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;
err_code = sd_ble_cfg_set(BLE_GAP_CFG_ROLE_COUNT, &ble_conf, app_ram_start);
if (err_code != NRF_SUCCESS)
return err_code;
memset(&ble_conf, 0, sizeof(ble_conf));
ble_conf.conn_cfg.conn_cfg_tag = BLE_CONN_CFG_TAG_CUSTOM;
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);
if (err_code != NRF_SUCCESS)
return err_code;
err_code = sd_ble_enable(&app_ram_start);
return err_code;
}
void common_hal_bleio_adapter_set_enabled(bool enabled) {
const bool is_enabled = common_hal_bleio_adapter_get_enabled();
// Don't enable or disable twice
if ((is_enabled && enabled) || (!is_enabled && !enabled)) {
return;
}
uint32_t err_code;
if (enabled) {
err_code = ble_stack_enable();
} else {
err_code = sd_softdevice_disable();
}
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg(translate("Failed to change softdevice state"));
}
}
bool common_hal_bleio_adapter_get_enabled(void) {
uint8_t is_enabled;
const uint32_t err_code = sd_softdevice_is_enabled(&is_enabled);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg(translate("Failed to get softdevice state"));
}
return is_enabled;
}
void common_hal_bleio_adapter_get_address(bleio_address_obj_t *address) {
ble_gap_addr_t local_address;
uint32_t err_code;
common_hal_bleio_adapter_set_enabled(true);
#if (BLE_API_VERSION == 2)
err_code = sd_ble_gap_address_get(&local_address);
#else
err_code = sd_ble_gap_addr_get(&local_address);
#endif
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg(translate("Failed to get local address"));
}
address->type = local_address.addr_type;
memcpy(address->value, local_address.addr, BLEIO_ADDRESS_BYTES);
}