127 lines
4.5 KiB
C
127 lines
4.5 KiB
C
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/****************************************************************************
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* arch/arm/src/tiva/tiva_hciuart.h
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_TIVA_HCIUART_H
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#define __ARCH_ARM_SRC_TIVA_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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#ifdef CONFIG_TIVA_UART0_HCIUART
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HCIUART0, /* HCI UART on TIVA UART0 */
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#endif
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#ifdef CONFIG_TIVA_UART1_HCIUART
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HCIUART1, /* HCI UART on TIVA UART1 */
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#endif
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#ifdef CONFIG_TIVA_UART2_HCIUART
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HCIUART2, /* HCI UART on TIVA UART2 */
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#endif
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#ifdef CONFIG_TIVA_UART3_HCIUART
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HCIUART3, /* HCI UART on TIVA UART3 */
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#endif
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#ifdef CONFIG_TIVA_UART4_HCIUART
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HCIUART4, /* HCI UART on TIVA UART4 */
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#endif
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#ifdef CONFIG_TIVA_UART5_HCIUART
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HCIUART5, /* HCI UART on TIVA UART5 */
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#endif
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#ifdef CONFIG_TIVA_UART6_HCIUART
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HCIUART6, /* HCI UART on TIVA UART6 */
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#endif
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#ifdef CONFIG_TIVA_UART7_HCIUART
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HCIUART7 /* HCI UART on TIVA UART7 */
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#endif
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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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* UART
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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: tiva_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_TIVA_HCIUART_RXDMA
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void tiva_serial_dma_poll(void);
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#endif
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#endif /* __ARCH_ARM_SRC_TIVA_HCIUART_H */
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