diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_hvx_buffering.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_hvx_buffering.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_hvx_buffering.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_hvx_buffering.c new file mode 100644 index 0000000..80b3afc --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_ots/ble_hvx_buffering.c @@ -0,0 +1,102 @@ +/** + * 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 "ble_hvx_buffering.h" +#include <string.h> + +uint32_t ble_hvx_init(ble_hvx_buf_t * p_ble_hvx_buf) +{ + if (p_ble_hvx_buf == NULL) + { + return NRF_ERROR_NULL; + } + + p_ble_hvx_buf->insert_index = 0; + p_ble_hvx_buf->read_index = 0; + + return NRF_SUCCESS; +} + +ble_hvx_t * ble_hvx_get_p_to_next_hvx(ble_hvx_buf_t * p_ble_hvx_buf) +{ + ble_hvx_t * p_hvx; + p_hvx = &p_ble_hvx_buf->buf[p_ble_hvx_buf->insert_index++]; + + p_hvx->params.p_data = p_hvx->data; + p_hvx->params.p_len = &p_hvx->data_len; + + p_ble_hvx_buf->insert_index &= BLE_HVX_BUF_MASK; + return p_hvx; +} + + +uint32_t ble_hvx_buffer_process(ble_hvx_buf_t * p_ble_hvx_buf) +{ + uint32_t err_code; + while (p_ble_hvx_buf->read_index != p_ble_hvx_buf->insert_index) + { + + ble_gatts_hvx_params_t * p_hvx_params; + + p_hvx_params = &p_ble_hvx_buf->buf[p_ble_hvx_buf->read_index].params; + err_code = sd_ble_gatts_hvx(p_ble_hvx_buf->buf[p_ble_hvx_buf->read_index].conn_handle, p_hvx_params); + + if (err_code == NRF_SUCCESS) + { + p_ble_hvx_buf->read_index++; + p_ble_hvx_buf->read_index &= BLE_HVX_BUF_MASK; + } + else + { + if (err_code == NRF_ERROR_BUSY || err_code == NRF_ERROR_RESOURCES) + { + return NRF_SUCCESS; // not a critical error. + } + else + { + // remove element from buffer + p_ble_hvx_buf->insert_index--; + p_ble_hvx_buf->insert_index &= BLE_HVX_BUF_MASK; + return err_code; + } + } + } + return NRF_SUCCESS; +} |