6ff1648b4f
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/****************************************************************************
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* arch/arm/src/stm32/stm32_hciuart.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32_HCIUART_H
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#define __ARCH_ARM_SRC_STM32_HCIUART_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum hciuart_devno_e
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{
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HCIUART1 = 0, /* HCI UART on STM32 USART1 */
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HCIUART2 = 1, /* HCI UART on STM32 USART2 */
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HCIUART3 = 2, /* HCI UART on STM32 USART3 */
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/* UARTs 4-5 do not support RTS/CTS flow control */
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HCIUART5 = 5, /* HCI UART on STM32 USART6 */
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HCIUART6 = 6, /* HCI UART on STM32 UART7 */
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HCIUART7 = 7 /* HCI UART on STM32 UART8 */
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: hciuart_instantiate
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*
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* Description:
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* Obtain an instance of the HCI UART interface for the specified HCI UART
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* This assumes that hciuart_initialize was called previously.
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*
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* Input Parameters:
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* uart - Identifies the HCI UART to be configured
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*
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* Returned Value:
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* On success, a reference to the HCI UART lower driver for the associated
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* U[S]ART
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*
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****************************************************************************/
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const struct btuart_lowerhalf_s *
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hciuart_instantiate(enum hciuart_devno_e uart);
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/****************************************************************************
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* Name: hciuart_initialize
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*
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* Description:
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* Performs the low-level, one-time USART initialization. This must be
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* called before hciuart_instantiate.
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*
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****************************************************************************/
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void hciuart_initialize(void);
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/****************************************************************************
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* Name: stm32_serial_dma_poll
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*
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* Description:
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* Checks receive DMA buffers for received bytes that have not accumulated
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* to the point where the DMA half/full interrupt has triggered.
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*
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* This function should be called from a timer or other periodic context.
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*
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****************************************************************************/
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#ifdef CONFIG_STM32_HCIUART_RXDMA
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void stm32_serial_dma_poll(void);
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#endif
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#endif /* __ARCH_ARM_SRC_STM32_HCIUART_H */
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