/** * Copyright (c) 2015 - 2017, 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. * */ #include "sdk_config.h" #if ANT_HRM_ENABLED #include "nrf_assert.h" #include "app_error.h" #include "ant_interface.h" #include "app_util.h" #include "ant_hrm.h" #include "ant_hrm_utils.h" #include "app_error.h" #define NRF_LOG_MODULE_NAME "ANT_HRM" #if ANT_HRM_LOG_ENABLED #define NRF_LOG_LEVEL ANT_HRM_LOG_LEVEL #define NRF_LOG_INFO_COLOR ANT_HRM_INFO_COLOR #else // ANT_HRM_LOG_ENABLED #define NRF_LOG_LEVEL 0 #endif // ANT_HRM_LOG_ENABLED #include "nrf_log.h" #define BACKGROUND_DATA_INTERVAL 64 /**< The number of main data pages sent between background data page. Background data page is sent every 65th message. */ #define TX_TOGGLE_DIVISOR 4 /**< The number of messages between changing state of toggle bit. */ /**@brief HRM message data layout structure. */ typedef struct { ant_hrm_page_t page_number : 7; uint8_t toggle_bit : 1; uint8_t page_payload[7]; } ant_hrm_message_layout_t; /**@brief Function for initializing the ANT HRM profile instance. * * @param[in] p_profile Pointer to the profile instance. * @param[in] p_channel_config Pointer to the ANT channel configuration structure. * * @retval NRF_SUCCESS If initialization was successful. Otherwise, an error code is returned. */ static ret_code_t ant_hrm_init(ant_hrm_profile_t * p_profile, ant_channel_config_t const * p_channel_config) { p_profile->channel_number = p_channel_config->channel_number; p_profile->page_0 = DEFAULT_ANT_HRM_PAGE0(); p_profile->page_1 = DEFAULT_ANT_HRM_PAGE1(); p_profile->page_2 = DEFAULT_ANT_HRM_PAGE2(); p_profile->page_3 = DEFAULT_ANT_HRM_PAGE3(); p_profile->page_4 = DEFAULT_ANT_HRM_PAGE4(); NRF_LOG_INFO("ANT HRM channel %u init\r\n", p_profile->channel_number); return ant_channel_init(p_channel_config); } ret_code_t ant_hrm_disp_init(ant_hrm_profile_t * p_profile, ant_channel_config_t const * p_channel_config, ant_hrm_evt_handler_t evt_handler) { ASSERT(p_profile != NULL); ASSERT(p_channel_config != NULL); ASSERT(evt_handler != NULL); p_profile->evt_handler = evt_handler; return ant_hrm_init(p_profile, p_channel_config); } ret_code_t ant_hrm_sens_init(ant_hrm_profile_t * p_profile, ant_channel_config_t const * p_channel_config, ant_hrm_sens_config_t const * p_sens_config) { ASSERT(p_profile != NULL); ASSERT(p_channel_config != NULL); ASSERT(p_sens_config != NULL); ASSERT(p_sens_config->p_cb != NULL); ASSERT(p_sens_config->evt_handler != NULL); ASSERT((p_sens_config->main_page_number == ANT_HRM_PAGE_0) || (p_sens_config->main_page_number == ANT_HRM_PAGE_4)); p_profile->evt_handler = p_sens_config->evt_handler; p_profile->_cb.p_sens_cb = p_sens_config->p_cb; ant_hrm_sens_cb_t * p_hrm_cb = p_profile->_cb.p_sens_cb; p_hrm_cb->page_1_present = p_sens_config->page_1_present; p_hrm_cb->main_page_number = p_sens_config->main_page_number; p_hrm_cb->ext_page_number = p_hrm_cb->page_1_present ? ANT_HRM_PAGE_1 : ANT_HRM_PAGE_2; p_hrm_cb->message_counter = 0; p_hrm_cb->toggle_bit = true; return ant_hrm_init(p_profile, p_channel_config); } /**@brief Function for getting next page number to send. * * @param[in] p_profile Pointer to the profile instance. * * @return Next page number. */ static ant_hrm_page_t next_page_number_get(ant_hrm_profile_t * p_profile) { ant_hrm_sens_cb_t * p_hrm_cb = p_profile->_cb.p_sens_cb; ant_hrm_page_t page_number; if (p_hrm_cb->message_counter == (BACKGROUND_DATA_INTERVAL)) { page_number = p_hrm_cb->ext_page_number; p_hrm_cb->message_counter = 0; p_hrm_cb->ext_page_number++; if (p_hrm_cb->ext_page_number > ANT_HRM_PAGE_3) { p_hrm_cb->ext_page_number = p_hrm_cb->page_1_present ? ANT_HRM_PAGE_1 : ANT_HRM_PAGE_2; } } else { page_number = p_hrm_cb->main_page_number; } if (p_hrm_cb->message_counter % TX_TOGGLE_DIVISOR == 0) { p_hrm_cb->toggle_bit ^= 1; } p_hrm_cb->message_counter++; return page_number; } /**@brief Function for encoding HRM message. * * @note Assume to be call each time when Tx window will occur. */ static void sens_message_encode(ant_hrm_profile_t * p_profile, uint8_t * p_message_payload) { ant_hrm_message_layout_t * p_hrm_message_payload = (ant_hrm_message_layout_t *)p_message_payload; ant_hrm_sens_cb_t * p_hrm_cb = p_profile->_cb.p_sens_cb; p_hrm_message_payload->page_number = next_page_number_get(p_profile); p_hrm_message_payload->toggle_bit = p_hrm_cb->toggle_bit; NRF_LOG_INFO("HRM TX Page number: %u\r\n", p_hrm_message_payload->page_number); ant_hrm_page_0_encode(p_hrm_message_payload->page_payload, &(p_profile->page_0)); // Page 0 is present in each message switch (p_hrm_message_payload->page_number) { case ANT_HRM_PAGE_0: // No implementation needed break; case ANT_HRM_PAGE_1: ant_hrm_page_1_encode(p_hrm_message_payload->page_payload, &(p_profile->page_1)); break; case ANT_HRM_PAGE_2: ant_hrm_page_2_encode(p_hrm_message_payload->page_payload, &(p_profile->page_2)); break; case ANT_HRM_PAGE_3: ant_hrm_page_3_encode(p_hrm_message_payload->page_payload, &(p_profile->page_3)); break; case ANT_HRM_PAGE_4: ant_hrm_page_4_encode(p_hrm_message_payload->page_payload, &(p_profile->page_4)); break; default: return; } p_profile->evt_handler(p_profile, (ant_hrm_evt_t)p_hrm_message_payload->page_number); } /**@brief Function for setting payload for ANT message and sending it. * * @param[in] p_profile Pointer to the profile instance. */ static void ant_message_send(ant_hrm_profile_t * p_profile) { uint32_t err_code; uint8_t p_message_payload[ANT_STANDARD_DATA_PAYLOAD_SIZE]; sens_message_encode(p_profile, p_message_payload); err_code = sd_ant_broadcast_message_tx(p_profile->channel_number, sizeof (p_message_payload), p_message_payload); APP_ERROR_CHECK(err_code); } void ant_hrm_sens_evt_handler(ant_hrm_profile_t * p_profile, ant_evt_t * p_ant_event) { if (p_ant_event->channel == p_profile->channel_number) { switch (p_ant_event->event) { case EVENT_TX: ant_message_send(p_profile); break; default: break; } } } ret_code_t ant_hrm_disp_open(ant_hrm_profile_t * p_profile) { ASSERT(p_profile != NULL); NRF_LOG_INFO("ANT HRM channel %u open\r\n", p_profile->channel_number); return sd_ant_channel_open(p_profile->channel_number); } ret_code_t ant_hrm_sens_open(ant_hrm_profile_t * p_profile) { ASSERT(p_profile != NULL); // Fill tx buffer for the first frame ant_message_send(p_profile); NRF_LOG_INFO("ANT HRM channel %u open\r\n", p_profile->channel_number); return sd_ant_channel_open(p_profile->channel_number); } /**@brief Function for decoding HRM message. * * @note Assume to be call each time when Rx window will occur. */ static void disp_message_decode(ant_hrm_profile_t * p_profile, uint8_t * p_message_payload) { const ant_hrm_message_layout_t * p_hrm_message_payload = (ant_hrm_message_layout_t *)p_message_payload; NRF_LOG_INFO("HRM RX Page Number: %u\r\n", p_hrm_message_payload->page_number); ant_hrm_page_0_decode(p_hrm_message_payload->page_payload, &(p_profile->page_0)); // Page 0 is present in each message switch (p_hrm_message_payload->page_number) { case ANT_HRM_PAGE_0: // No implementation needed break; case ANT_HRM_PAGE_1: ant_hrm_page_1_decode(p_hrm_message_payload->page_payload, &(p_profile->page_1)); break; case ANT_HRM_PAGE_2: ant_hrm_page_2_decode(p_hrm_message_payload->page_payload, &(p_profile->page_2)); break; case ANT_HRM_PAGE_3: ant_hrm_page_3_decode(p_hrm_message_payload->page_payload, &(p_profile->page_3)); break; case ANT_HRM_PAGE_4: ant_hrm_page_4_decode(p_hrm_message_payload->page_payload, &(p_profile->page_4)); break; default: return; } p_profile->evt_handler(p_profile, (ant_hrm_evt_t)p_hrm_message_payload->page_number); } void ant_hrm_disp_evt_handler(ant_hrm_profile_t * p_profile, ant_evt_t * p_ant_event) { if (p_ant_event->channel == p_profile->channel_number) { ANT_MESSAGE * p_message = (ANT_MESSAGE *)p_ant_event->msg.evt_buffer; switch (p_ant_event->event) { case EVENT_RX: if (p_message->ANT_MESSAGE_ucMesgID == MESG_BROADCAST_DATA_ID || p_message->ANT_MESSAGE_ucMesgID == MESG_ACKNOWLEDGED_DATA_ID || p_message->ANT_MESSAGE_ucMesgID == MESG_BURST_DATA_ID) { disp_message_decode(p_profile, p_message->ANT_MESSAGE_aucPayload); } break; default: break; } } } #endif // ANT_HRM_ENABLED