diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/twi_sensor/nrf_twi_sensor.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/twi_sensor/nrf_twi_sensor.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/twi_sensor/nrf_twi_sensor.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/twi_sensor/nrf_twi_sensor.c new file mode 100644 index 0000000..9c080bc --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/twi_sensor/nrf_twi_sensor.c @@ -0,0 +1,220 @@ +/** + * Copyright (c) 2017 - 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. + * + */ +#include "nrf_twi_sensor.h" +#include <string.h> + +#define NRF_LOG_MODULE_NAME twi_sensor +#if NRF_TWI_SENSOR_CONFIG_LOG_ENABLED + #define NRF_LOG_LEVEL NRF_TWI_SENSOR_CONFIG_LOG_LEVEL + #define NRF_LOG_INFO_COLOR NRF_TWI_SENSOR_CONFIG_INFO_COLOR + #define NRF_LOG_DEBUG_COLOR NRF_TWI_SENSOR_CONFIG_DEBUG_COLOR +#else + #define NRF_LOG_LEVEL 0 +#endif // NRF_TWI_SENSOR_CONFIG_LOG_ENABLED +#include "nrf_log.h" +NRF_LOG_MODULE_REGISTER(); + + +ret_code_t nrf_twi_sensor_init(nrf_twi_sensor_t * p_twi_sensor) +{ + return nrf_balloc_init(p_twi_sensor->p_pool); +} + +static void sensor_read_reg_cb(ret_code_t result, void * p_user_data) +{ + nrf_twi_sensor_read_cmd_t * p_cmd = &((nrf_twi_sensor_cmd_t *) p_user_data)->read; + NRF_LOG_INFO("Read cb reg addr: 0x%02X, result %d", p_cmd->reg_address, result); + NRF_LOG_DEBUG("\r\nCallback pointer: %p\r\nData:", p_cmd->user_cb); + NRF_LOG_HEXDUMP_DEBUG(p_cmd->transfers[1].p_data, p_cmd->transfers[1].length); + + if (p_cmd->user_cb != NULL) + { + p_cmd->user_cb(result, (void*)p_cmd->transfers[1].p_data); + } + nrf_balloc_free(p_cmd->p_instance->p_pool, p_user_data); +} + +ret_code_t nrf_twi_sensor_reg_read(nrf_twi_sensor_t const * p_instance, + uint8_t sensor_addr, + uint8_t reg_address, + nrf_twi_sensor_reg_cb_t user_cb, + uint8_t * p_data, + uint8_t length) +{ + ASSERT(p_instance != NULL); + ASSERT(p_data != NULL); + NRF_LOG_INFO("Sensor addr: 0x%02X" + "\r\nRead reg addr: 0x%02X, bytes %d", + sensor_addr, + reg_address, + length); + + nrf_twi_sensor_read_cmd_t * p_cmd = + (nrf_twi_sensor_read_cmd_t *) nrf_balloc_alloc(p_instance->p_pool); + if (p_cmd == NULL) + { + NRF_LOG_WARNING("Memory not allocated."); + return NRF_ERROR_NO_MEM; + } + + p_cmd->p_instance = p_instance; + p_cmd->user_cb = user_cb; + p_cmd->reg_address = reg_address; + + p_cmd->transfers[0] = (nrf_twi_mngr_transfer_t) NRF_TWI_MNGR_WRITE(sensor_addr, + &p_cmd->reg_address, + 1, + NRF_TWI_MNGR_NO_STOP); + + p_cmd->transfers[1] = (nrf_twi_mngr_transfer_t) NRF_TWI_MNGR_READ(sensor_addr, + p_data, + length, + NRF_TWI_MNGR_NO_STOP); + + p_cmd->transaction = (nrf_twi_mngr_transaction_t) { + .callback = sensor_read_reg_cb, + .p_user_data = p_cmd, + .p_transfers = p_cmd->transfers, + .number_of_transfers = ARRAY_SIZE(p_cmd->transfers) + }; + + ret_code_t err_code = nrf_twi_mngr_schedule(p_instance->p_twi_mngr, &p_cmd->transaction); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_WARNING("Transaction not scheduled.\r\nSensor addr: 0x%02X Error code: %d", + sensor_addr, + err_code); + nrf_balloc_free(p_instance->p_pool, p_cmd); + } + return err_code; +} + +static void sensor_write_reg_cb(ret_code_t result, void * p_user_data) +{ + nrf_twi_sensor_write_cmd_t * p_cmd = &((nrf_twi_sensor_cmd_t *) p_user_data)->write; + NRF_LOG_INFO("Write cb reg addr: 0x%02X, result %d", p_cmd->send_msg[0], result); + nrf_balloc_free(p_cmd->p_instance->p_pool, p_user_data); +} + +ret_code_t nrf_twi_sensor_write(nrf_twi_sensor_t const * p_instance, + uint8_t sensor_addr, + uint8_t const * p_data, + uint8_t length, + bool copy_flag) +{ + ASSERT(p_instance != NULL); + ASSERT(p_data != NULL); + NRF_LOG_INFO("Sensor addr: 0x%02X Write length %d", sensor_addr, length); + NRF_LOG_DEBUG("Data: "); + NRF_LOG_HEXDUMP_DEBUG(p_data, length); + nrf_twi_sensor_write_cmd_t * p_cmd = + (nrf_twi_sensor_write_cmd_t *) nrf_balloc_alloc(p_instance->p_pool); + if (p_cmd == NULL) + { + NRF_LOG_WARNING("Memory not allocated. Sensor addr: 0x%02X", + sensor_addr); + return NRF_ERROR_NO_MEM; + } + + p_cmd->p_instance = p_instance; + + p_cmd->transfer = (nrf_twi_mngr_transfer_t) NRF_TWI_MNGR_WRITE(sensor_addr, + p_data, + length, + 0); + + if (copy_flag == true) + { + if (length > NRF_TWI_SENSOR_SEND_BUF_SIZE) + { + NRF_LOG_ERROR("Data too long to copy. Sensor addr: 0x%02X" + "\r\nRequested write length: %d, max length: %d", + sensor_addr, + length, + NRF_TWI_SENSOR_SEND_BUF_SIZE); + nrf_balloc_free(p_instance->p_pool, p_cmd); + return NRF_ERROR_INVALID_LENGTH; + } + memcpy(p_cmd->send_msg, p_data, length); + p_cmd->transfer.p_data = p_cmd->send_msg; + } + + p_cmd->transaction = (nrf_twi_mngr_transaction_t) { + .callback = sensor_write_reg_cb, + .p_user_data = p_cmd, + .p_transfers = &p_cmd->transfer, + .number_of_transfers = 1 + }; + + ret_code_t err_code = nrf_twi_mngr_schedule(p_instance->p_twi_mngr, &p_cmd->transaction); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_WARNING("Transaction not scheduled.\r\nSensor addr: 0x%02X Error code: %d", + sensor_addr, + err_code); + nrf_balloc_free(p_instance->p_pool, p_cmd); + } + return err_code; +} + +ret_code_t nrf_twi_sensor_reg_write(nrf_twi_sensor_t const * p_instance, + uint8_t sensor_addr, + uint8_t reg_address, + uint8_t * p_data, + uint8_t length) +{ + ASSERT(p_instance != NULL); + ASSERT(p_data != NULL); + NRF_LOG_INFO("Write register: 0x%02X", reg_address); + if (length > NRF_TWI_SENSOR_SEND_BUF_SIZE - 1) // Subtracting one byte for address + { + NRF_LOG_ERROR("Data too long to copy. Sensor addr: 0x%02X" + "\r\nRequested write length: %d, max length: %d", + sensor_addr, + length, + NRF_TWI_SENSOR_SEND_BUF_SIZE - 1); + return NRF_ERROR_INVALID_LENGTH; + } + uint8_t buf[NRF_TWI_SENSOR_SEND_BUF_SIZE]; + + buf[0] = reg_address; + memcpy(&buf[1], p_data, length); + return nrf_twi_sensor_write(p_instance, sensor_addr, buf, length + 1, true); +} |