1 |
4 |
kuzmi4 |
/******************************************************************************
|
2 |
|
|
*
|
3 |
|
|
* Copyright (C) 2009 - 2014 Xilinx, Inc. All rights reserved.
|
4 |
|
|
*
|
5 |
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
6 |
|
|
* of this software and associated documentation files (the "Software"), to deal
|
7 |
|
|
* in the Software without restriction, including without limitation the rights
|
8 |
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
9 |
|
|
* copies of the Software, and to permit persons to whom the Software is
|
10 |
|
|
* furnished to do so, subject to the following conditions:
|
11 |
|
|
*
|
12 |
|
|
* The above copyright notice and this permission notice shall be included in
|
13 |
|
|
* all copies or substantial portions of the Software.
|
14 |
|
|
*
|
15 |
|
|
* Use of the Software is limited solely to applications:
|
16 |
|
|
* (a) running on a Xilinx device, or
|
17 |
|
|
* (b) that interact with a Xilinx device through a bus or interconnect.
|
18 |
|
|
*
|
19 |
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
20 |
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
21 |
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
22 |
|
|
* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
23 |
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
|
24 |
|
|
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
25 |
|
|
* SOFTWARE.
|
26 |
|
|
*
|
27 |
|
|
* Except as contained in this notice, the name of the Xilinx shall not be used
|
28 |
|
|
* in advertising or otherwise to promote the sale, use or other dealings in
|
29 |
|
|
* this Software without prior written authorization from Xilinx.
|
30 |
|
|
*
|
31 |
|
|
******************************************************************************/
|
32 |
|
|
/*****************************************************************************/
|
33 |
|
|
/**
|
34 |
|
|
*
|
35 |
|
|
* @file xil_io.c
|
36 |
|
|
*
|
37 |
|
|
* Contains I/O functions for memory-mapped architectures. These functions
|
38 |
|
|
* encapsulate generic CPU I/O requirements.
|
39 |
|
|
*
|
40 |
|
|
* <pre>
|
41 |
|
|
* MODIFICATION HISTORY:
|
42 |
|
|
*
|
43 |
|
|
* Ver Who Date Changes
|
44 |
|
|
* ----- ---- -------- -------------------------------------------------------
|
45 |
|
|
* 3.00a hbm 07/28/09 Initial release
|
46 |
|
|
* 3.00a hbm 07/21/10 Added Xil_EndianSwap32/16, Xil_Htonl/s, Xil_Ntohl/s
|
47 |
|
|
*
|
48 |
|
|
* </pre>
|
49 |
|
|
*
|
50 |
|
|
* @note
|
51 |
|
|
*
|
52 |
|
|
* This file may contain architecture-dependent code.
|
53 |
|
|
*
|
54 |
|
|
******************************************************************************/
|
55 |
|
|
|
56 |
|
|
/***************************** Include Files *********************************/
|
57 |
|
|
|
58 |
|
|
#include "xil_io.h"
|
59 |
|
|
#include "xil_types.h"
|
60 |
|
|
|
61 |
|
|
/************************** Constant Definitions *****************************/
|
62 |
|
|
|
63 |
|
|
|
64 |
|
|
/**************************** Type Definitions *******************************/
|
65 |
|
|
|
66 |
|
|
|
67 |
|
|
/***************** Macros (Inline Functions) Definitions *********************/
|
68 |
|
|
|
69 |
|
|
|
70 |
|
|
/************************** Function Prototypes ******************************/
|
71 |
|
|
|
72 |
|
|
|
73 |
|
|
/***************** Macros (Inline Functions) and Functions Definitions *******/
|
74 |
|
|
|
75 |
|
|
/*****************************************************************************/
|
76 |
|
|
/**
|
77 |
|
|
*
|
78 |
|
|
* Perform an input operation for an 8-bit memory location by reading from the
|
79 |
|
|
* specified address and returning the value read from that address.
|
80 |
|
|
*
|
81 |
|
|
* @param Addr contains the address to perform the input operation at.
|
82 |
|
|
*
|
83 |
|
|
* @return The value read from the specified input address.
|
84 |
|
|
*
|
85 |
|
|
* @note None.
|
86 |
|
|
*
|
87 |
|
|
******************************************************************************/
|
88 |
|
|
u8 Xil_In8(u32 Addr) {
|
89 |
|
|
// return *(volatile u8 *)Addr;
|
90 |
|
|
return( (u8)(axi_read_(Addr, 0x01)) );
|
91 |
|
|
}
|
92 |
|
|
|
93 |
|
|
/*****************************************************************************/
|
94 |
|
|
/**
|
95 |
|
|
*
|
96 |
|
|
* Perform an input operation for a 16-bit memory location by reading from the
|
97 |
|
|
* specified address and returning the value read from that address.
|
98 |
|
|
*
|
99 |
|
|
* @param Addr contains the address to perform the input operation at.
|
100 |
|
|
*
|
101 |
|
|
* @return The value read from the specified input address.
|
102 |
|
|
*
|
103 |
|
|
* @note None.
|
104 |
|
|
*
|
105 |
|
|
******************************************************************************/
|
106 |
|
|
u16 Xil_In16(u32 Addr) {
|
107 |
|
|
// return *(volatile u16 *)Addr;
|
108 |
|
|
return( (u16)(axi_read_(Addr, 0x03)) );
|
109 |
|
|
}
|
110 |
|
|
|
111 |
|
|
/*****************************************************************************/
|
112 |
|
|
/**
|
113 |
|
|
*
|
114 |
|
|
* Performs an input operation for a 32-bit memory location by reading from the
|
115 |
|
|
* specified address and returning the Value read from that address.
|
116 |
|
|
*
|
117 |
|
|
* @param Addr contains the address to perform the input operation at.
|
118 |
|
|
*
|
119 |
|
|
* @return The value read from the specified input address.
|
120 |
|
|
*
|
121 |
|
|
* @note None.
|
122 |
|
|
*
|
123 |
|
|
******************************************************************************/
|
124 |
|
|
u32 Xil_In32(u32 Addr) {
|
125 |
|
|
// return *(volatile u32 *)Addr;
|
126 |
|
|
return( (u32)(axi_read_(Addr, 0x0F)) );
|
127 |
|
|
}
|
128 |
|
|
|
129 |
|
|
|
130 |
|
|
/*****************************************************************************/
|
131 |
|
|
/**
|
132 |
|
|
*
|
133 |
|
|
* Perform an output operation for an 8-bit memory location by writing the
|
134 |
|
|
* specified value to the specified address.
|
135 |
|
|
*
|
136 |
|
|
* @param Addr contains the address to perform the output operation at.
|
137 |
|
|
* @param value contains the value to be output at the specified address.
|
138 |
|
|
*
|
139 |
|
|
* @return None
|
140 |
|
|
*
|
141 |
|
|
* @note None.
|
142 |
|
|
*
|
143 |
|
|
******************************************************************************/
|
144 |
|
|
void Xil_Out8(u32 Addr, u8 Value) {
|
145 |
|
|
// u8 *LocalAddr = (u8 *)Addr;
|
146 |
|
|
// *LocalAddr = Value;
|
147 |
|
|
axi_write(Addr, 0x01 , Value);
|
148 |
|
|
}
|
149 |
|
|
|
150 |
|
|
/*****************************************************************************/
|
151 |
|
|
/**
|
152 |
|
|
*
|
153 |
|
|
* Perform an output operation for a 16-bit memory location by writing the
|
154 |
|
|
* specified value to the specified address.
|
155 |
|
|
*
|
156 |
|
|
* @param Addr contains the address to perform the output operation at.
|
157 |
|
|
* @param value contains the value to be output at the specified address.
|
158 |
|
|
*
|
159 |
|
|
* @return None
|
160 |
|
|
*
|
161 |
|
|
* @note None.
|
162 |
|
|
*
|
163 |
|
|
******************************************************************************/
|
164 |
|
|
void Xil_Out16(u32 Addr, u16 Value) {
|
165 |
|
|
// u16 *LocalAddr = (u16 *)Addr;
|
166 |
|
|
// *LocalAddr = Value;
|
167 |
|
|
axi_write(Addr, 0x03, Value);
|
168 |
|
|
}
|
169 |
|
|
|
170 |
|
|
/*****************************************************************************/
|
171 |
|
|
/**
|
172 |
|
|
*
|
173 |
|
|
* Perform an output operation for a 32-bit memory location by writing the
|
174 |
|
|
* specified value to the specified address.
|
175 |
|
|
*
|
176 |
|
|
* @param addr contains the address to perform the output operation at.
|
177 |
|
|
* @param value contains the value to be output at the specified address.
|
178 |
|
|
*
|
179 |
|
|
* @return None
|
180 |
|
|
*
|
181 |
|
|
* @note None.
|
182 |
|
|
*
|
183 |
|
|
******************************************************************************/
|
184 |
|
|
void Xil_Out32(u32 Addr, u32 Value) {
|
185 |
|
|
// u32 *LocalAddr = (u32 *)Addr;
|
186 |
|
|
// *LocalAddr = Value;
|
187 |
|
|
axi_write(Addr, 0x0F, Value);
|
188 |
|
|
}
|
189 |
|
|
|
190 |
|
|
/*****************************************************************************/
|
191 |
|
|
/**
|
192 |
|
|
*
|
193 |
|
|
* Perform a 16-bit endian converion.
|
194 |
|
|
*
|
195 |
|
|
* @param Data contains the value to be converted.
|
196 |
|
|
*
|
197 |
|
|
* @return converted value.
|
198 |
|
|
*
|
199 |
|
|
* @note None.
|
200 |
|
|
*
|
201 |
|
|
******************************************************************************/
|
202 |
|
|
u16 Xil_EndianSwap16(u16 Data)
|
203 |
|
|
{
|
204 |
|
|
return (u16) (((Data & 0xFF00U) >> 8U) | ((Data & 0x00FFU) << 8U));
|
205 |
|
|
}
|
206 |
|
|
|
207 |
|
|
/*****************************************************************************/
|
208 |
|
|
/**
|
209 |
|
|
*
|
210 |
|
|
* Perform a 32-bit endian converion.
|
211 |
|
|
*
|
212 |
|
|
* @param Data contains the value to be converted.
|
213 |
|
|
*
|
214 |
|
|
* @return converted value.
|
215 |
|
|
*
|
216 |
|
|
* @note None.
|
217 |
|
|
*
|
218 |
|
|
******************************************************************************/
|
219 |
|
|
u32 Xil_EndianSwap32(u32 Data)
|
220 |
|
|
{
|
221 |
|
|
u16 LoWord;
|
222 |
|
|
u16 HiWord;
|
223 |
|
|
|
224 |
|
|
/* get each of the half words from the 32 bit word */
|
225 |
|
|
|
226 |
|
|
LoWord = (u16) (Data & 0x0000FFFFU);
|
227 |
|
|
HiWord = (u16) ((Data & 0xFFFF0000U) >> 16U);
|
228 |
|
|
|
229 |
|
|
/* byte swap each of the 16 bit half words */
|
230 |
|
|
|
231 |
|
|
LoWord = (((LoWord & 0xFF00U) >> 8U) | ((LoWord & 0x00FFU) << 8U));
|
232 |
|
|
HiWord = (((HiWord & 0xFF00U) >> 8U) | ((HiWord & 0x00FFU) << 8U));
|
233 |
|
|
|
234 |
|
|
/* swap the half words before returning the value */
|
235 |
|
|
|
236 |
|
|
return ((((u32)LoWord) << (u32)16U) | (u32)HiWord);
|
237 |
|
|
}
|
238 |
|
|
|
239 |
|
|
/*****************************************************************************/
|
240 |
|
|
/**
|
241 |
|
|
*
|
242 |
|
|
* Perform a little-endian input operation for a 16-bit memory location
|
243 |
|
|
* by reading from the specified address and returning the byte-swapped value
|
244 |
|
|
* read from that address.
|
245 |
|
|
*
|
246 |
|
|
* @param Addr contains the address to perform the input operation at.
|
247 |
|
|
*
|
248 |
|
|
* @return The value read from the specified input address with the
|
249 |
|
|
* proper endianness. The return value has the same endianness
|
250 |
|
|
* as that of the processor, i.e. if the processor is big-engian,
|
251 |
|
|
* the return value is the byte-swapped value read from the
|
252 |
|
|
* address.
|
253 |
|
|
*
|
254 |
|
|
*
|
255 |
|
|
* @note None.
|
256 |
|
|
*
|
257 |
|
|
******************************************************************************/
|
258 |
|
|
#ifndef __LITTLE_ENDIAN__
|
259 |
|
|
u16 Xil_In16LE(u32 Addr)
|
260 |
|
|
#else
|
261 |
|
|
u16 Xil_In16BE(u32 Addr)
|
262 |
|
|
#endif
|
263 |
|
|
{
|
264 |
|
|
u16 Value;
|
265 |
|
|
|
266 |
|
|
/* get the data then swap it */
|
267 |
|
|
Value = Xil_In16(Addr);
|
268 |
|
|
|
269 |
|
|
return Xil_EndianSwap16(Value);
|
270 |
|
|
}
|
271 |
|
|
|
272 |
|
|
/*****************************************************************************/
|
273 |
|
|
/**
|
274 |
|
|
*
|
275 |
|
|
* Perform a little-endian input operation for a 32-bit memory location
|
276 |
|
|
* by reading from the specified address and returning the byte-swapped value
|
277 |
|
|
* read from that address.
|
278 |
|
|
*
|
279 |
|
|
* @param Addr contains the address to perform the input operation at.
|
280 |
|
|
*
|
281 |
|
|
* @return The value read from the specified input address with the
|
282 |
|
|
* proper endianness. The return value has the same endianness
|
283 |
|
|
* as that of the processor, i.e. if the processor is big-engian,
|
284 |
|
|
* the return value is the byte-swapped value read from the
|
285 |
|
|
* address.
|
286 |
|
|
*
|
287 |
|
|
* @note None.
|
288 |
|
|
*
|
289 |
|
|
******************************************************************************/
|
290 |
|
|
#ifndef __LITTLE_ENDIAN__
|
291 |
|
|
u32 Xil_In32LE(u32 Addr)
|
292 |
|
|
#else
|
293 |
|
|
u32 Xil_In32BE(u32 Addr)
|
294 |
|
|
#endif
|
295 |
|
|
{
|
296 |
|
|
u32 InValue;
|
297 |
|
|
|
298 |
|
|
/* get the data then swap it */
|
299 |
|
|
InValue = Xil_In32(Addr);
|
300 |
|
|
return Xil_EndianSwap32(InValue);
|
301 |
|
|
}
|
302 |
|
|
|
303 |
|
|
/*****************************************************************************/
|
304 |
|
|
/**
|
305 |
|
|
*
|
306 |
|
|
* Perform a little-endian output operation for a 16-bit memory location by
|
307 |
|
|
* writing the specified value to the the specified address. The value is
|
308 |
|
|
* byte-swapped before being written.
|
309 |
|
|
*
|
310 |
|
|
* @param Addr contains the address to perform the output operation at.
|
311 |
|
|
* @param Value contains the value to be output at the specified address.
|
312 |
|
|
* The value has the same endianness as that of the processor.
|
313 |
|
|
* If the processor is big-endian, the byte-swapped value is
|
314 |
|
|
* written to the address.
|
315 |
|
|
*
|
316 |
|
|
* @return None.
|
317 |
|
|
*
|
318 |
|
|
* @note None.
|
319 |
|
|
*
|
320 |
|
|
******************************************************************************/
|
321 |
|
|
#ifndef __LITTLE_ENDIAN__
|
322 |
|
|
void Xil_Out16LE(u32 Addr, u16 Value)
|
323 |
|
|
#else
|
324 |
|
|
void Xil_Out16BE(u32 Addr, u16 Value)
|
325 |
|
|
#endif
|
326 |
|
|
{
|
327 |
|
|
u16 OutValue;
|
328 |
|
|
|
329 |
|
|
/* swap the data then output it */
|
330 |
|
|
OutValue = Xil_EndianSwap16(Value);
|
331 |
|
|
|
332 |
|
|
Xil_Out16(Addr, OutValue);
|
333 |
|
|
}
|
334 |
|
|
|
335 |
|
|
/*****************************************************************************/
|
336 |
|
|
/**
|
337 |
|
|
*
|
338 |
|
|
* Perform a little-endian output operation for a 32-bit memory location
|
339 |
|
|
* by writing the specified value to the the specified address. The value is
|
340 |
|
|
* byte-swapped before being written.
|
341 |
|
|
*
|
342 |
|
|
* @param Addr contains the address at which the output operation at.
|
343 |
|
|
* @param Value contains the value to be output at the specified address.
|
344 |
|
|
* The value has the same endianness as that of the processor.
|
345 |
|
|
* If the processor is big-endian, the byte-swapped value is
|
346 |
|
|
* written to the address.
|
347 |
|
|
*
|
348 |
|
|
* @return None.
|
349 |
|
|
*
|
350 |
|
|
* @note None.
|
351 |
|
|
*
|
352 |
|
|
******************************************************************************/
|
353 |
|
|
#ifndef __LITTLE_ENDIAN__
|
354 |
|
|
void Xil_Out32LE(u32 Addr, u32 Value)
|
355 |
|
|
#else
|
356 |
|
|
void Xil_Out32BE(u32 Addr, u32 Value)
|
357 |
|
|
#endif
|
358 |
|
|
{
|
359 |
|
|
u32 OutValue;
|
360 |
|
|
|
361 |
|
|
/* swap the data then output it */
|
362 |
|
|
OutValue = Xil_EndianSwap32(Value);
|
363 |
|
|
Xil_Out32(Addr, OutValue);
|
364 |
|
|
}
|