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// #################################################################################################
// # << NEORV32: neorv32_slink.c - Stream Link Interface HW Driver >>                              #
// # ********************************************************************************************* #
// # BSD 3-Clause License                                                                          #
// #                                                                                               #
// # Copyright (c) 2021, Stephan Nolting. All rights reserved.                                     #
// #                                                                                               #
// # 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 holder nor the names of its contributors may be used to  #
// #    endorse or promote products derived from this software without specific prior written      #
// #    permission.                                                                                #
// #                                                                                               #
// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE    #
// # COPYRIGHT HOLDER 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.                                                            #
// # ********************************************************************************************* #
// # The NEORV32 Processor - https://github.com/stnolting/neorv32              (c) Stephan Nolting #
// #################################################################################################
 
 
/**********************************************************************//**
 * @file neorv32_slink.h
 * @author Stephan Nolting
 * @brief Stream Link Interface HW driver source file.
 **************************************************************************/
 
#include "neorv32.h"
#include "neorv32_slink.h"
 
 
/**********************************************************************//**
 * Check if stream link interface was synthesized.
 *
 * @return 0 if SLINK was not synthesized, 1 if SLINK is available.
 **************************************************************************/
int neorv32_slink_available(void) {
 
  if (NEORV32_SYSINFO.SOC & (1 << SYSINFO_SOC_IO_SLINK)) {
    return 1;
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Activate stream link interface.
 **************************************************************************/
void neorv32_slink_enable(void) {
 
  NEORV32_SLINK.CTRL |= (uint32_t)(1 << SLINK_CTRL_EN);
}
 
 
/**********************************************************************//**
 * Deactivate stream link interface.
 *
 * @note This will also clear all link FIFOs.
 **************************************************************************/
void neorv32_slink_disable(void) {
 
  NEORV32_SLINK.CTRL &= ~(uint32_t)(1 << SLINK_CTRL_EN);
}
 
 
/**********************************************************************//**
 * Get number of implemented RX links
 *
 * @return Number of implemented RX link (0..8).
 **************************************************************************/
int neorv32_slink_get_rx_num(void) {
 
  if (neorv32_slink_available()) {
    return (int)((NEORV32_SLINK.CTRL >> SLINK_CTRL_RX_NUM0) & 0xf);
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Get number of implemented TX links
 *
 * @return Number of implemented TX link (0..8).
 **************************************************************************/
int neorv32_slink_get_tx_num(void) {
 
  if (neorv32_slink_available()) {
    return (int)((NEORV32_SLINK.CTRL >> SLINK_CTRL_TX_NUM0) & 0xf);
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Get FIFO depth of RX links
 *
 * @return FIFO depth of RX links (1..32768); 0 if no RX links implemented.
 **************************************************************************/
int neorv32_slink_get_rx_depth(void) {
 
  if (neorv32_slink_available()) {
    uint32_t tmp = (NEORV32_SLINK.CTRL >> SLINK_CTRL_RX_FIFO_S0) & 0x0f;
    return (int)(1 << tmp);
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Get FIFO depth of TX links
 *
 * @return FIFO depth of TX links (1..32768); 0 if no TX links implemented.
 **************************************************************************/
int neorv32_slink_get_tx_depth(void) {
 
  if (neorv32_slink_available()) {
    uint32_t tmp = (NEORV32_SLINK.CTRL >> SLINK_CTRL_TX_FIFO_S0) & 0x0f;
    return (int)(1 << tmp);
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Check if RX link FIFO fill level is >= half-full
 *
 * @param[in] link_id Link id (0..7).
 * @return 1 if fill level is >= half-full.
 **************************************************************************/
int neorv32_slink_check_rx_half_full(int link_id) {
 
  const uint32_t mask = 1 << SLINK_STATUS_RX0_HALF;
 
  if (NEORV32_SLINK.STATUS & (mask << (link_id & 0x7))) {
    return 1;
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Check if TX link FIFO fill level is > half-full
 *
 * @param[in] link_id Link id (0..7).
 * @return 1 if fill level is > half-full.
 **************************************************************************/
int neorv32_slink_check_tx_half_full(int link_id) {
 
  const uint32_t mask = 1 << SLINK_STATUS_TX0_HALF;
 
  if (NEORV32_SLINK.STATUS & (mask << (link_id & 0x7))) {
    return 1;
  }
  else {
    return 0;
  }
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 0 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx0_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX0_FREE)) {
    NEORV32_SLINK.DATA[0] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 1 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx1_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX1_FREE)) {
    NEORV32_SLINK.DATA[1] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 2 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx2_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX2_FREE)) {
    NEORV32_SLINK.DATA[2] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 3 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx3_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX3_FREE)) {
    NEORV32_SLINK.DATA[3] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 4 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx4_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX4_FREE)) {
    NEORV32_SLINK.DATA[4] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 5 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx5_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX5_FREE)) {
    NEORV32_SLINK.DATA[5] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 6 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx6_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX6_FREE)) {
    NEORV32_SLINK.DATA[6] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Write data to TX stream link 7 (non-blocking)
 *
 * @param[in] tx_data Data to send to link.
 * @return 0 if data was send, 1 if link is still busy.
 **************************************************************************/
int neorv32_slink_tx7_nonblocking(uint32_t tx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX7_FREE)) {
    NEORV32_SLINK.DATA[7] = tx_data;
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 0 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx0_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX0_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[0];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 1 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx1_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX1_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[1];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 2 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx2_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX2_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[2];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 3 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx3_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX3_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[3];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 4 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx4_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX4_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[4];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 5 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx5_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX5_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[5];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 6 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx6_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX6_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[6];
    return 0;
  }
  return 1;
}
 
 
/**********************************************************************//**
 * Read data from RX stream link 7 (non-blocking)
 *
 * @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.
 * @return 0 if data was received, 1 if there is no data to fetch.
 **************************************************************************/
int neorv32_slink_rx7_nonblocking(uint32_t *rx_data) {
 
  if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX7_AVAIL)) {
    *rx_data = NEORV32_SLINK.DATA[7];
    return 0;
  }
  return 1;
}

Line No.	Rev	Author	Line
1	61	zero_gravi	`// #################################################################################################`
2			`// # << NEORV32: neorv32_slink.c - Stream Link Interface HW Driver >> #`
3			`// # ********************************************************************************************* #`
4			`// # BSD 3-Clause License #`
5			`// # #`
6			`// # Copyright (c) 2021, Stephan Nolting. All rights reserved. #`
7			`// # #`
8			`// # Redistribution and use in source and binary forms, with or without modification, are #`
9			`// # permitted provided that the following conditions are met: #`
10			`// # #`
11			`// # 1. Redistributions of source code must retain the above copyright notice, this list of #`
12			`// # conditions and the following disclaimer. #`
13			`// # #`
14			`// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #`
15			`// # conditions and the following disclaimer in the documentation and/or other materials #`
16			`// # provided with the distribution. #`
17			`// # #`
18			`// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #`
19			`// # endorse or promote products derived from this software without specific prior written #`
20			`// # permission. #`
21			`// # #`
22			`// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #`
23			`// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #`
24			`// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #`
25			`// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #`
26			`// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #`
27			`// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #`
28			`// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #`
29			`// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #`
30			`// # OF THE POSSIBILITY OF SUCH DAMAGE. #`
31			`// # ********************************************************************************************* #`
32			`// # The NEORV32 Processor - https://github.com/stnolting/neorv32 (c) Stephan Nolting #`
33			`// #################################################################################################`
34
35
36			`/********************************************************************//`
37			`* @file neorv32_slink.h`
38			`* @author Stephan Nolting`
39			`* @brief Stream Link Interface HW driver source file.`
40			`**************************************************************************/`
41
42			`#include "neorv32.h"`
43			`#include "neorv32_slink.h"`
44
45
46			`/********************************************************************//`
47			`* Check if stream link interface was synthesized.`
48			`*`
49			`* @return 0 if SLINK was not synthesized, 1 if SLINK is available.`
50			`**************************************************************************/`
51			`int neorv32_slink_available(void) {`
52
53	64	zero_gravi	`if (NEORV32_SYSINFO.SOC & (1 << SYSINFO_SOC_IO_SLINK)) {`
54	61	zero_gravi	`return 1;`
55			`}`
56			`else {`
57			`return 0;`
58			`}`
59			`}`
60
61
62			`/********************************************************************//`
63			`* Activate stream link interface.`
64			`**************************************************************************/`
65			`void neorv32_slink_enable(void) {`
66
67	64	zero_gravi	`NEORV32_SLINK.CTRL \|= (uint32_t)(1 << SLINK_CTRL_EN);`
68	61	zero_gravi	`}`
69
70
71			`/********************************************************************//`
72			`* Deactivate stream link interface.`
73			`*`
74			`* @note This will also clear all link FIFOs.`
75			`**************************************************************************/`
76			`void neorv32_slink_disable(void) {`
77
78	64	zero_gravi	`NEORV32_SLINK.CTRL &= ~(uint32_t)(1 << SLINK_CTRL_EN);`
79	61	zero_gravi	`}`
80
81
82			`/********************************************************************//`
83			`* Get number of implemented RX links`
84			`*`
85			`* @return Number of implemented RX link (0..8).`
86			`**************************************************************************/`
87			`int neorv32_slink_get_rx_num(void) {`
88
89			`if (neorv32_slink_available()) {`
90	64	zero_gravi	`return (int)((NEORV32_SLINK.CTRL >> SLINK_CTRL_RX_NUM0) & 0xf);`
91	61	zero_gravi	`}`
92			`else {`
93			`return 0;`
94			`}`
95			`}`
96
97
98			`/********************************************************************//`
99			`* Get number of implemented TX links`
100			`*`
101			`* @return Number of implemented TX link (0..8).`
102			`**************************************************************************/`
103			`int neorv32_slink_get_tx_num(void) {`
104
105			`if (neorv32_slink_available()) {`
106	64	zero_gravi	`return (int)((NEORV32_SLINK.CTRL >> SLINK_CTRL_TX_NUM0) & 0xf);`
107	61	zero_gravi	`}`
108			`else {`
109			`return 0;`
110			`}`
111			`}`
112
113
114			`/********************************************************************//`
115			`* Get FIFO depth of RX links`
116			`*`
117			`* @return FIFO depth of RX links (1..32768); 0 if no RX links implemented.`
118			`**************************************************************************/`
119			`int neorv32_slink_get_rx_depth(void) {`
120
121			`if (neorv32_slink_available()) {`
122	64	zero_gravi	`uint32_t tmp = (NEORV32_SLINK.CTRL >> SLINK_CTRL_RX_FIFO_S0) & 0x0f;`
123	61	zero_gravi	`return (int)(1 << tmp);`
124			`}`
125			`else {`
126			`return 0;`
127			`}`
128			`}`
129
130
131			`/********************************************************************//`
132			`* Get FIFO depth of TX links`
133			`*`
134			`* @return FIFO depth of TX links (1..32768); 0 if no TX links implemented.`
135			`**************************************************************************/`
136			`int neorv32_slink_get_tx_depth(void) {`
137
138			`if (neorv32_slink_available()) {`
139	64	zero_gravi	`uint32_t tmp = (NEORV32_SLINK.CTRL >> SLINK_CTRL_TX_FIFO_S0) & 0x0f;`
140	61	zero_gravi	`return (int)(1 << tmp);`
141			`}`
142			`else {`
143			`return 0;`
144			`}`
145			`}`
146
147
148			`/********************************************************************//`
149	62	zero_gravi	`* Check if RX link FIFO fill level is >= half-full`
150			`*`
151			`* @param[in] link_id Link id (0..7).`
152			`* @return 1 if fill level is >= half-full.`
153			`**************************************************************************/`
154			`int neorv32_slink_check_rx_half_full(int link_id) {`
155
156			`const uint32_t mask = 1 << SLINK_STATUS_RX0_HALF;`
157
158	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (mask << (link_id & 0x7))) {`
159	62	zero_gravi	`return 1;`
160			`}`
161			`else {`
162			`return 0;`
163			`}`
164			`}`
165
166
167			`/********************************************************************//`
168			`* Check if TX link FIFO fill level is > half-full`
169			`*`
170			`* @param[in] link_id Link id (0..7).`
171			`* @return 1 if fill level is > half-full.`
172			`**************************************************************************/`
173			`int neorv32_slink_check_tx_half_full(int link_id) {`
174
175			`const uint32_t mask = 1 << SLINK_STATUS_TX0_HALF;`
176
177	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (mask << (link_id & 0x7))) {`
178	62	zero_gravi	`return 1;`
179			`}`
180			`else {`
181			`return 0;`
182			`}`
183			`}`
184
185
186			`/********************************************************************//`
187	61	zero_gravi	`* Write data to TX stream link 0 (non-blocking)`
188			`*`
189			`* @param[in] tx_data Data to send to link.`
190			`* @return 0 if data was send, 1 if link is still busy.`
191			`**************************************************************************/`
192			`int neorv32_slink_tx0_nonblocking(uint32_t tx_data) {`
193
194	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX0_FREE)) {`
195			`NEORV32_SLINK.DATA[0] = tx_data;`
196	61	zero_gravi	`return 0;`
197			`}`
198			`return 1;`
199			`}`
200
201
202			`/********************************************************************//`
203			`* Write data to TX stream link 1 (non-blocking)`
204			`*`
205			`* @param[in] tx_data Data to send to link.`
206			`* @return 0 if data was send, 1 if link is still busy.`
207			`**************************************************************************/`
208			`int neorv32_slink_tx1_nonblocking(uint32_t tx_data) {`
209
210	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX1_FREE)) {`
211			`NEORV32_SLINK.DATA[1] = tx_data;`
212	61	zero_gravi	`return 0;`
213			`}`
214			`return 1;`
215			`}`
216
217
218			`/********************************************************************//`
219			`* Write data to TX stream link 2 (non-blocking)`
220			`*`
221			`* @param[in] tx_data Data to send to link.`
222			`* @return 0 if data was send, 1 if link is still busy.`
223			`**************************************************************************/`
224			`int neorv32_slink_tx2_nonblocking(uint32_t tx_data) {`
225
226	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX2_FREE)) {`
227			`NEORV32_SLINK.DATA[2] = tx_data;`
228	61	zero_gravi	`return 0;`
229			`}`
230			`return 1;`
231			`}`
232
233
234			`/********************************************************************//`
235			`* Write data to TX stream link 3 (non-blocking)`
236			`*`
237			`* @param[in] tx_data Data to send to link.`
238			`* @return 0 if data was send, 1 if link is still busy.`
239			`**************************************************************************/`
240			`int neorv32_slink_tx3_nonblocking(uint32_t tx_data) {`
241
242	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX3_FREE)) {`
243			`NEORV32_SLINK.DATA[3] = tx_data;`
244	61	zero_gravi	`return 0;`
245			`}`
246			`return 1;`
247			`}`
248
249
250			`/********************************************************************//`
251			`* Write data to TX stream link 4 (non-blocking)`
252			`*`
253			`* @param[in] tx_data Data to send to link.`
254			`* @return 0 if data was send, 1 if link is still busy.`
255			`**************************************************************************/`
256			`int neorv32_slink_tx4_nonblocking(uint32_t tx_data) {`
257
258	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX4_FREE)) {`
259			`NEORV32_SLINK.DATA[4] = tx_data;`
260	61	zero_gravi	`return 0;`
261			`}`
262			`return 1;`
263			`}`
264
265
266			`/********************************************************************//`
267			`* Write data to TX stream link 5 (non-blocking)`
268			`*`
269			`* @param[in] tx_data Data to send to link.`
270			`* @return 0 if data was send, 1 if link is still busy.`
271			`**************************************************************************/`
272			`int neorv32_slink_tx5_nonblocking(uint32_t tx_data) {`
273
274	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX5_FREE)) {`
275			`NEORV32_SLINK.DATA[5] = tx_data;`
276	61	zero_gravi	`return 0;`
277			`}`
278			`return 1;`
279			`}`
280
281
282			`/********************************************************************//`
283			`* Write data to TX stream link 6 (non-blocking)`
284			`*`
285			`* @param[in] tx_data Data to send to link.`
286			`* @return 0 if data was send, 1 if link is still busy.`
287			`**************************************************************************/`
288			`int neorv32_slink_tx6_nonblocking(uint32_t tx_data) {`
289
290	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX6_FREE)) {`
291			`NEORV32_SLINK.DATA[6] = tx_data;`
292	61	zero_gravi	`return 0;`
293			`}`
294			`return 1;`
295			`}`
296
297
298			`/********************************************************************//`
299			`* Write data to TX stream link 7 (non-blocking)`
300			`*`
301			`* @param[in] tx_data Data to send to link.`
302			`* @return 0 if data was send, 1 if link is still busy.`
303			`**************************************************************************/`
304			`int neorv32_slink_tx7_nonblocking(uint32_t tx_data) {`
305
306	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_TX7_FREE)) {`
307			`NEORV32_SLINK.DATA[7] = tx_data;`
308	61	zero_gravi	`return 0;`
309			`}`
310			`return 1;`
311			`}`
312
313
314			`/********************************************************************//`
315			`* Read data from RX stream link 0 (non-blocking)`
316			`*`
317			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
318			`* @return 0 if data was received, 1 if there is no data to fetch.`
319			`**************************************************************************/`
320			`int neorv32_slink_rx0_nonblocking(uint32_t *rx_data) {`
321
322	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX0_AVAIL)) {`
323			`*rx_data = NEORV32_SLINK.DATA[0];`
324	61	zero_gravi	`return 0;`
325			`}`
326			`return 1;`
327			`}`
328
329
330			`/********************************************************************//`
331			`* Read data from RX stream link 1 (non-blocking)`
332			`*`
333			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
334			`* @return 0 if data was received, 1 if there is no data to fetch.`
335			`**************************************************************************/`
336			`int neorv32_slink_rx1_nonblocking(uint32_t *rx_data) {`
337
338	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX1_AVAIL)) {`
339			`*rx_data = NEORV32_SLINK.DATA[1];`
340	61	zero_gravi	`return 0;`
341			`}`
342			`return 1;`
343			`}`
344
345
346			`/********************************************************************//`
347			`* Read data from RX stream link 2 (non-blocking)`
348			`*`
349			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
350			`* @return 0 if data was received, 1 if there is no data to fetch.`
351			`**************************************************************************/`
352			`int neorv32_slink_rx2_nonblocking(uint32_t *rx_data) {`
353
354	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX2_AVAIL)) {`
355			`*rx_data = NEORV32_SLINK.DATA[2];`
356	61	zero_gravi	`return 0;`
357			`}`
358			`return 1;`
359			`}`
360
361
362			`/********************************************************************//`
363			`* Read data from RX stream link 3 (non-blocking)`
364			`*`
365			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
366			`* @return 0 if data was received, 1 if there is no data to fetch.`
367			`**************************************************************************/`
368			`int neorv32_slink_rx3_nonblocking(uint32_t *rx_data) {`
369
370	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX3_AVAIL)) {`
371			`*rx_data = NEORV32_SLINK.DATA[3];`
372	61	zero_gravi	`return 0;`
373			`}`
374			`return 1;`
375			`}`
376
377
378			`/********************************************************************//`
379			`* Read data from RX stream link 4 (non-blocking)`
380			`*`
381			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
382			`* @return 0 if data was received, 1 if there is no data to fetch.`
383			`**************************************************************************/`
384			`int neorv32_slink_rx4_nonblocking(uint32_t *rx_data) {`
385
386	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX4_AVAIL)) {`
387			`*rx_data = NEORV32_SLINK.DATA[4];`
388	61	zero_gravi	`return 0;`
389			`}`
390			`return 1;`
391			`}`
392
393
394			`/********************************************************************//`
395			`* Read data from RX stream link 5 (non-blocking)`
396			`*`
397			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
398			`* @return 0 if data was received, 1 if there is no data to fetch.`
399			`**************************************************************************/`
400			`int neorv32_slink_rx5_nonblocking(uint32_t *rx_data) {`
401
402	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX5_AVAIL)) {`
403			`*rx_data = NEORV32_SLINK.DATA[5];`
404	61	zero_gravi	`return 0;`
405			`}`
406			`return 1;`
407			`}`
408
409
410			`/********************************************************************//`
411			`* Read data from RX stream link 6 (non-blocking)`
412			`*`
413			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
414			`* @return 0 if data was received, 1 if there is no data to fetch.`
415			`**************************************************************************/`
416			`int neorv32_slink_rx6_nonblocking(uint32_t *rx_data) {`
417
418	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX6_AVAIL)) {`
419			`*rx_data = NEORV32_SLINK.DATA[6];`
420	61	zero_gravi	`return 0;`
421			`}`
422			`return 1;`
423			`}`
424
425
426			`/********************************************************************//`
427			`* Read data from RX stream link 7 (non-blocking)`
428			`*`
429			`* @param[in,out] rx_data Pointer to return read data. Only valid if function return value = 0.`
430			`* @return 0 if data was received, 1 if there is no data to fetch.`
431			`**************************************************************************/`
432			`int neorv32_slink_rx7_nonblocking(uint32_t *rx_data) {`
433
434	64	zero_gravi	`if (NEORV32_SLINK.STATUS & (1 << SLINK_STATUS_RX7_AVAIL)) {`
435			`*rx_data = NEORV32_SLINK.DATA[7];`
436	61	zero_gravi	`return 0;`
437			`}`
438			`return 1;`
439			`}`

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[/] [neorv32/] [trunk/] [sw/] [lib/] [source/] [neorv32_slink.c] - Blame information for rev 64