xref: /btstack/platform/embedded/hal_uart_dma.h (revision a705b1a26dcfbf2c605ea712f75a1ebdcf0586f3)

/*
 * Copyright (C) 2014 BlueKitchen GmbH
 *
 * 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 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 the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 4. Any redistribution, use, or modification is done solely for
 *    personal benefit and not for any commercial purpose or for
 *    monetary gain.
 *
 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
 * RINGWALD 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.
 *
 * Please inquire about commercial licensing options at
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 *
 */

/*
 *  hal_uart_dma.h
 *
 *  Hardware abstraction layer that provides
 *  - blockwise IRQ-driven read/write
 *  - CSR IRQs
 *
 */

#ifndef __HAL_UART_DMA_H
#define __HAL_UART_DMA_H

#include <stdint.h>

#if defined __cplusplus
extern "C" {
#endif

void hal_uart_dma_init(void);
void hal_uart_dma_set_block_received( void (*block_handler)(void));
void hal_uart_dma_set_block_sent( void (*block_handler)(void));
void hal_uart_dma_set_csr_irq_handler( void (*csr_irq_handler)(void));
int  hal_uart_dma_set_baud(uint32_t baud);
void hal_uart_dma_send_block(const uint8_t *buffer, uint16_t length);
void hal_uart_dma_receive_block(uint8_t *buffer, uint16_t len);
void hal_uart_dma_set_sleep(uint8_t sleep);

#if defined __cplusplus
}
#endif
#endif // __HAL_UART_DMA_H