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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/examples/proprietary_rf/gzll/gzp_dynamic_pairing/device/main.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/examples/proprietary_rf/gzll/gzp_dynamic_pairing/device/main.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/proprietary_rf/gzll/gzp_dynamic_pairing/device/main.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/proprietary_rf/gzll/gzp_dynamic_pairing/device/main.c new file mode 100644 index 0000000..af526c5 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/examples/proprietary_rf/gzll/gzp_dynamic_pairing/device/main.c @@ -0,0 +1,230 @@ +/** + * Copyright (c) 2012 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +/** + * This project requires a running counterpart project, which is either of the following: + * + * 1) nRF24Lxx host running the gzll_host_w_dynamic_pairing example from the + * compatible version of the nRFgo SDK + * + * 2) nRF5x host running the gzp_host_dynamic_pairing_example example. + * + * + * The application sends packets continuously. If a packet transmission + * fails (either times out or encryption fails), the device will attempt pairing + * to a host by sending a pairing request, consisting of an "address request" and a + * "Host ID" request. + * + * If the device is paired to a host, pairing data will be stored in non + * volatile memory. + * + * Before adding a packet to the TX queue, the contents of + * the GPIO Port BUTTONS are copied to the first payload byte (byte 0). + * When an ACK is received, the contents of the first payload byte of + * the ACK are output on GPIO Port LEDS. + * + * The application alternates between sending the packets encrypted + * through the pairing library or directly as plain text using pipe + * UNENCRYPTED_DATA_PIPE. + * + */ +#include "nrf_gzll.h" +#include "nrf_gzp.h" +#include "bsp.h" +#include "app_error.h" +#include "nrf_gzll_error.h" + + +#include "nrf_log.h" +#include "nrf_log_ctrl.h" +#include "nrf_log_default_backends.h" + +/*****************************************************************************/ +/** @name Configuration */ +/*****************************************************************************/ +#define UNENCRYPTED_DATA_PIPE 2 ///< Pipes 0 and 1 are reserved for GZP pairing and data. See nrf_gzp.h. +#define NRF_GZLLDE_RXPERIOD_DIV_2 504 ///< RXPERIOD/2 on LU1 = timeslot period on nRF5x. + +// Ensure that we try all channels before giving up +#define MAX_TX_ATTEMPTS (NRF_GZLL_DEFAULT_TIMESLOTS_PER_CHANNEL_WHEN_DEVICE_OUT_OF_SYNC * \ + NRF_GZLL_DEFAULT_CHANNEL_TABLE_SIZE) + +/** + * @brief Function to read the button states. + * + * @return Returns the states of buttons. + */ +static uint8_t input_get(void) +{ + uint8_t result = 0; + for (uint32_t i = 0; i < BUTTONS_NUMBER; i++) + { + if (bsp_button_is_pressed(i)) + { + result |= (1 << i); + } + } + + return ~(result); +} + + +/** + * @brief Initialize the BSP modules. + */ +static void ui_init(void) +{ + // BSP initialization. + uint32_t err_code = bsp_init(BSP_INIT_BUTTONS, NULL); + + APP_ERROR_CHECK(err_code); + + // Set up logger + err_code = NRF_LOG_INIT(NULL); + APP_ERROR_CHECK(err_code); + + NRF_LOG_DEFAULT_BACKENDS_INIT(); + +} + + +/*****************************************************************************/ +/** + * @brief Main function. + * + * @return ANSI required int return type. + */ +/*****************************************************************************/ +int main(void) +{ + bool tx_success = false; + bool send_crypt_data = false; + gzp_id_req_res_t id_req_status = GZP_ID_RESP_NO_REQUEST; + + // Data and acknowledgement payloads + uint8_t payload[NRF_GZLL_CONST_MAX_PAYLOAD_LENGTH]; ///< Payload to send to Host. + + // Set up the user interface (buttons and LEDs) + ui_init(); + + // Initialize the Gazell Link Layer + bool result_value = nrf_gzll_init(NRF_GZLL_MODE_DEVICE); + GAZELLE_ERROR_CODE_CHECK(result_value); + + // Attempt sending every packet up to MAX_TX_ATTEMPTS times + nrf_gzll_set_max_tx_attempts(MAX_TX_ATTEMPTS); + + result_value = nrf_gzll_set_timeslot_period(NRF_GZLLDE_RXPERIOD_DIV_2); // Half RX period on nRF24Lxx device + GAZELLE_ERROR_CODE_CHECK(result_value); + + // Erase pairing data. This example is intended to demonstrate pairing after every reset. + // See the gzp_desktop_emulator example for a demonstration on how to maintain pairing data between resets. + gzp_erase_pairing_data(); + + // Initialize the Gazell Pairing Library + gzp_init(); + + result_value = nrf_gzll_enable(); + GAZELLE_ERROR_CODE_CHECK(result_value); + + NRF_LOG_INFO("Gazell dynamic pairing example started. Device mode."); + NRF_LOG_FLUSH(); + + for (;;) + { + payload[0] = input_get(); + + // Send every other packet as encrypted data. + if (send_crypt_data) + { + // Send encrypted packet using the Gazell pairing library. + tx_success = gzp_crypt_data_send(payload, GZP_ENCRYPTED_USER_DATA_MAX_LENGTH); + } + else + { + nrf_gzp_reset_tx_complete(); + nrf_gzp_reset_tx_success(); + + // Send packet as plain text. + if (nrf_gzll_add_packet_to_tx_fifo(UNENCRYPTED_DATA_PIPE, + payload, + GZP_MAX_FW_PAYLOAD_LENGTH)) + { + while (!nrf_gzp_tx_complete()) + { + __WFI(); + } + tx_success = nrf_gzp_tx_success(); + } + else + { + NRF_LOG_ERROR("TX fifo error "); + NRF_LOG_FLUSH(); + } + } + send_crypt_data = !send_crypt_data; + + // Check if data transfer failed. + if (!tx_success) + { + NRF_LOG_ERROR("Gazelle: transmission failed"); + NRF_LOG_FLUSH(); + + // Send "system address request". Needed for sending any user data to the host. + if (gzp_address_req_send()) + { + // Send "Host ID request". Needed for sending encrypted user data to the host. + id_req_status = gzp_id_req_send(); + } + else + { + // System address request failed. + } + } + + // If waiting for the host to grant or reject an ID request. + if (id_req_status == GZP_ID_RESP_PENDING) + { + // Send a new ID request for fetching response. + id_req_status = gzp_id_req_send(); + } + } +} + + |