270 lines
12 KiB
C
270 lines
12 KiB
C
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// #################################################################################################
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// # << NEORV32: neorv32_slink.h - Stream Link Interface HW Driver >> #
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// # ********************************************************************************************* #
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// # BSD 3-Clause License #
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// # #
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// # Copyright (c) 2021, Stephan Nolting. All rights reserved. #
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// # #
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// # Redistribution and use in source and binary forms, with or without modification, are #
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// # permitted provided that the following conditions are met: #
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// # #
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// # 1. Redistributions of source code must retain the above copyright notice, this list of #
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// # conditions and the following disclaimer. #
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// # #
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// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
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// # conditions and the following disclaimer in the documentation and/or other materials #
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// # provided with the distribution. #
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// # #
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// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
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// # endorse or promote products derived from this software without specific prior written #
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// # permission. #
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// # #
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// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
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// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
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// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
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// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
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// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
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// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
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// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
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// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
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// # OF THE POSSIBILITY OF SUCH DAMAGE. #
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// # ********************************************************************************************* #
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// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #
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// #################################################################################################
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/**********************************************************************//**
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* @file neorv32_slink.h
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* @author Stephan Nolting
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* @brief Stream Link Interface HW driver header file.
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**************************************************************************/
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#ifndef neorv32_slink_h
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#define neorv32_slink_h
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// prototypes
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int neorv32_slink_available(void);
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void neorv32_slink_enable(void);
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void neorv32_slink_disable(void);
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void neorv32_slink_rx_irq_config(int link_id, int irq_en, int irq_type);
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void neorv32_slink_tx_irq_config(int link_id, int irq_en, int irq_type);
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int neorv32_slink_get_rx_num(void);
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int neorv32_slink_get_tx_num(void);
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int neorv32_slink_get_rx_depth(void);
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int neorv32_slink_get_tx_depth(void);
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int neorv32_slink_check_rx_half_full(int link_id);
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int neorv32_slink_check_tx_half_full(int link_id);
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// non-blocking transmit
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int neorv32_slink_tx0_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx1_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx2_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx3_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx4_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx5_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx6_nonblocking(uint32_t tx_data);
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int neorv32_slink_tx7_nonblocking(uint32_t tx_data);
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// non-blocking receive
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int neorv32_slink_rx0_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx1_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx2_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx3_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx4_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx5_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx6_nonblocking(uint32_t *rx_data);
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int neorv32_slink_rx7_nonblocking(uint32_t *rx_data);
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/**********************************************************************//**
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* Write data to TX stream link 0 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx0_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[0] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 1 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx1_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[1] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 2 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx2_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[2] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 3 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx3_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[3] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 4 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx4_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[4] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 5 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx5_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[5] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 6 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx6_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[6] = tx_data;
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}
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/**********************************************************************//**
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* Write data to TX stream link 7 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in] tx_data Data to send to link.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_tx7_blocking(uint32_t tx_data) {
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NEORV32_SLINK.DATA[7] = tx_data;
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}
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/**********************************************************************//**
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* Read data from RX stream link 0 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx0_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[0];
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}
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/**********************************************************************//**
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* Read data from RX stream link 1 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx1_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[1];
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}
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/**********************************************************************//**
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* Read data from RX stream link 2 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx2_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[2];
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}
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/**********************************************************************//**
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* Read data from RX stream link 3 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx3_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[3];
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}
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/**********************************************************************//**
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* Read data from RX stream link 4 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx4_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[4];
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}
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/**********************************************************************//**
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* Read data from RX stream link 5 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx5_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[5];
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}
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/**********************************************************************//**
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* Read data from RX stream link 6 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx6_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[6];
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}
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/**********************************************************************//**
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* Read data from RX stream link 7 (blocking!)
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*
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* @warning This function will raise an exception when the bus access times out!
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*
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* @param[in,out] rx_data Pointer to return read data.
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**************************************************************************/
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inline void __attribute__ ((always_inline)) neorv32_slink_rx7_blocking(uint32_t *rx_data) {
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*rx_data = NEORV32_SLINK.DATA[7];
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}
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#endif // neorv32_slink_h
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