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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// The HAL layer for UART (IRAM part)
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#include "hal/uart_hal.h"
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void uart_hal_txfifo_rst(uart_hal_context_t *hal)
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{
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uart_ll_txfifo_rst(hal->dev);
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}
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void uart_hal_rxfifo_rst(uart_hal_context_t *hal)
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{
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uart_ll_rxfifo_rst(hal->dev);
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}
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void uart_hal_tx_break(uart_hal_context_t *hal, uint32_t break_num)
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{
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uart_ll_tx_break(hal->dev, break_num);
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}
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void uart_hal_write_txfifo(uart_hal_context_t *hal, const uint8_t *buf, uint32_t data_size, uint32_t *write_size)
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{
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uint16_t fill_len = uart_ll_get_txfifo_len(hal->dev);
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if (fill_len > data_size) {
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fill_len = data_size;
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}
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*write_size = fill_len;
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uart_ll_write_txfifo(hal->dev, buf, fill_len);
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}
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void uart_hal_read_rxfifo(uart_hal_context_t *hal, uint8_t *buf, int *inout_rd_len)
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{
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if (*inout_rd_len <= 0) {
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*inout_rd_len = uart_ll_get_rxfifo_len(hal->dev);
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}
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uart_ll_read_rxfifo(hal->dev, buf, *inout_rd_len);
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}
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