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[/] [amber/] [trunk/] [sw/] [boot-loader-ethmac/] [utilities.c] - Blame information for rev 68

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/*----------------------------------------------------------------
//                                                              //
//  boot-loader-ethmac.c                                        //
//                                                              //
//  This file is part of the Amber project                      //
//  http://www.opencores.org/project,amber                      //
//                                                              //
//  Description                                                 //
//  The main functions for the boot loader application. This    //
//  application is embedded in the FPGA's SRAM and is used      //
//  to load larger applications into the DDR3 memory on         //
//  the development board.                                      //
//                                                              //
//  Author(s):                                                  //
//      - Conor Santifort, csantifort.amber@gmail.com           //
//                                                              //
//////////////////////////////////////////////////////////////////
//                                                              //
// Copyright (C) 2011 Authors and OPENCORES.ORG                 //
//                                                              //
// This source file may be used and distributed without         //
// restriction provided that this copyright statement is not    //
// removed from the file and that any derivative work contains  //
// the original copyright notice and the associated disclaimer. //
//                                                              //
// This source file is free software; you can redistribute it   //
// and/or modify it under the terms of the GNU Lesser General   //
// Public License as published by the Free Software Foundation; //
// either version 2.1 of the License, or (at your option) any   //
// later version.                                               //
//                                                              //
// This source is distributed in the hope that it will be       //
// useful, but WITHOUT ANY WARRANTY; without even the implied   //
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      //
// PURPOSE.  See the GNU Lesser General Public License for more //
// details.                                                     //
//                                                              //
// You should have received a copy of the GNU Lesser General    //
// Public License along with this source; if not, download it   //
// from http://www.opencores.org/lgpl.shtml                     //
//                                                              //
----------------------------------------------------------------*/
 
#include "amber_registers.h"
#include "utilities.h"
 
 
int next_string(char*buf)
{
    int pos = 0;
    while (*buf != 0) {buf++; pos++;}
    return ++pos;
}
 
 
int strcmp(char* str1, char*str2)
{
    int pos = 0;
    int equal=1;
 
    while (*str1!=0 && *str2!=0 && pos<256 && equal) {
        equal = *str1==*str2;
        str1++;
        str2++;
        pos++;
        }
    return equal;
}
 
 
/* Return a number recovered from a string of hex digits */
int get_hex (char * buf, unsigned int *num)
{
    int cpos = 0, done = 0;
    *num = 0;
 
    while (!done) {
        if ( buf[cpos] >= '0' && buf[cpos] <= '9' ) {
           *num = *num<<4;
           *num = *num + buf[cpos] - '0';
           }
        else if ( buf[cpos] >= 'A' && buf[cpos] <= 'F' ) {
            *num = *num<<4;
            *num = *num + buf[cpos] - 'A' + 10;
           }
        else if ( buf[cpos] >= 'a' && buf[cpos] <= 'f' ) {
            *num = *num<<4;
            *num = *num + buf[cpos] - 'a' + 10;
           }
        else
            done = 1;
 
        // Don't increment cops if the first character is not part of an ascii-hex string
        // oo that a 0 is returned to indicate failure.
        if (!done)
            cpos++;
 
        if (cpos >= 8)
            done = 1;
        }
 
    /* Return length of acsii-hex string */
    return cpos;
}
 
 
void udelay20(void)
{
    volatile int i;
    for (i=0;i<500;i++) ;
}
 
 
void phy_rst(int value)
{
    *(unsigned int *) ADR_AMBER_TEST_PHY_RST = value;
}
 
 
/* turn off all leds */
void led_clear()
{
    *(unsigned int *) ADR_AMBER_TEST_LED = 0;
}
 
 
/* led is either 0,1,2 or 3 */
void led_flip(int led)
{
    int current_value;
    current_value = *(unsigned int *) ADR_AMBER_TEST_LED;
    *(unsigned int *) ADR_AMBER_TEST_LED = current_value ^ (1<<led);
}
 
 
 
/* led is either 0,1,2 or 3 */
void led_on(int led)
{
    int current_value;
    current_value = *(unsigned int *) ADR_AMBER_TEST_LED;
    *(unsigned int *) ADR_AMBER_TEST_LED = current_value | (1<<led);
}
 
 
 
/* led is either 0,1,2 or 3 */
void led_off(int led)
{
    int current_value;
    current_value = *(unsigned int *) ADR_AMBER_TEST_LED;
    *(unsigned int *) ADR_AMBER_TEST_LED = current_value & ~(1<<led);
}
 
 
/* led is either 0,1,2 or 3 */
void led_123(int value)
{
    int current_value;
    current_value = *(unsigned int *) ADR_AMBER_TEST_LED;
    *(unsigned int *) ADR_AMBER_TEST_LED = (current_value & 1) | value<<1;
}

Line No.	Rev	Author	Line
1	61	csantifort	`/*----------------------------------------------------------------`
2			`// //`
3			`// boot-loader-ethmac.c //`
4			`// //`
5			`// This file is part of the Amber project //`
6			`// http://www.opencores.org/project,amber //`
7			`// //`
8			`// Description //`
9			`// The main functions for the boot loader application. This //`
10			`// application is embedded in the FPGA's SRAM and is used //`
11			`// to load larger applications into the DDR3 memory on //`
12			`// the development board. //`
13			`// //`
14			`// Author(s): //`
15			`// - Conor Santifort, csantifort.amber@gmail.com //`
16			`// //`
17			`//////////////////////////////////////////////////////////////////`
18			`// //`
19			`// Copyright (C) 2011 Authors and OPENCORES.ORG //`
20			`// //`
21			`// This source file may be used and distributed without //`
22			`// restriction provided that this copyright statement is not //`
23			`// removed from the file and that any derivative work contains //`
24			`// the original copyright notice and the associated disclaimer. //`
25			`// //`
26			`// This source file is free software; you can redistribute it //`
27			`// and/or modify it under the terms of the GNU Lesser General //`
28			`// Public License as published by the Free Software Foundation; //`
29			`// either version 2.1 of the License, or (at your option) any //`
30			`// later version. //`
31			`// //`
32			`// This source is distributed in the hope that it will be //`
33			`// useful, but WITHOUT ANY WARRANTY; without even the implied //`
34			`// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //`
35			`// PURPOSE. See the GNU Lesser General Public License for more //`
36			`// details. //`
37			`// //`
38			`// You should have received a copy of the GNU Lesser General //`
39			`// Public License along with this source; if not, download it //`
40			`// from http://www.opencores.org/lgpl.shtml //`
41			`// //`
42			`----------------------------------------------------------------*/`
43
44			`#include "amber_registers.h"`
45			`#include "utilities.h"`
46
47
48			`int next_string(char*buf)`
49			`{`
50			`int pos = 0;`
51			`while (*buf != 0) {buf++; pos++;}`
52			`return ++pos;`
53			`}`
54
55
56			`int strcmp(char* str1, char*str2)`
57			`{`
58			`int pos = 0;`
59			`int equal=1;`
60
61			`while (str1!=0 && str2!=0 && pos<256 && equal) {`
62			`equal = str1==str2;`
63			`str1++;`
64			`str2++;`
65			`pos++;`
66			`}`
67			`return equal;`
68			`}`
69
70
71			`/* Return a number recovered from a string of hex digits */`
72			`int get_hex (char * buf, unsigned int *num)`
73			`{`
74			`int cpos = 0, done = 0;`
75			`*num = 0;`
76
77			`while (!done) {`
78			`if ( buf[cpos] >= '0' && buf[cpos] <= '9' ) {`
79			`num = num<<4;`
80			`num = num + buf[cpos] - '0';`
81			`}`
82			`else if ( buf[cpos] >= 'A' && buf[cpos] <= 'F' ) {`
83			`num = num<<4;`
84			`num = num + buf[cpos] - 'A' + 10;`
85			`}`
86			`else if ( buf[cpos] >= 'a' && buf[cpos] <= 'f' ) {`
87			`num = num<<4;`
88			`num = num + buf[cpos] - 'a' + 10;`
89			`}`
90			`else`
91			`done = 1;`
92
93			`// Don't increment cops if the first character is not part of an ascii-hex string`
94			`// oo that a 0 is returned to indicate failure.`
95			`if (!done)`
96			`cpos++;`
97
98			`if (cpos >= 8)`
99			`done = 1;`
100			`}`
101
102			`/* Return length of acsii-hex string */`
103			`return cpos;`
104			`}`
105
106
107			`void udelay20(void)`
108			`{`
109			`volatile int i;`
110			`for (i=0;i<500;i++) ;`
111			`}`
112
113
114			`void phy_rst(int value)`
115			`{`
116			`(unsigned int ) ADR_AMBER_TEST_PHY_RST = value;`
117			`}`
118
119
120			`/* turn off all leds */`
121			`void led_clear()`
122			`{`
123			`(unsigned int ) ADR_AMBER_TEST_LED = 0;`
124			`}`
125
126
127			`/* led is either 0,1,2 or 3 */`
128			`void led_flip(int led)`
129			`{`
130			`int current_value;`
131			`current_value = (unsigned int ) ADR_AMBER_TEST_LED;`
132			`(unsigned int ) ADR_AMBER_TEST_LED = current_value ^ (1<<led);`
133			`}`
134
135
136
137			`/* led is either 0,1,2 or 3 */`
138			`void led_on(int led)`
139			`{`
140			`int current_value;`
141			`current_value = (unsigned int ) ADR_AMBER_TEST_LED;`
142			`(unsigned int ) ADR_AMBER_TEST_LED = current_value \| (1<<led);`
143			`}`
144
145
146
147			`/* led is either 0,1,2 or 3 */`
148			`void led_off(int led)`
149			`{`
150			`int current_value;`
151			`current_value = (unsigned int ) ADR_AMBER_TEST_LED;`
152			`(unsigned int ) ADR_AMBER_TEST_LED = current_value & ~(1<<led);`
153			`}`
154
155
156			`/* led is either 0,1,2 or 3 */`
157			`void led_123(int value)`
158			`{`
159			`int current_value;`
160			`current_value = (unsigned int ) ADR_AMBER_TEST_LED;`
161			`(unsigned int ) ADR_AMBER_TEST_LED = (current_value & 1) \| value<<1;`
162			`}`

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[/] [amber/] [trunk/] [sw/] [boot-loader-ethmac/] [utilities.c] - Blame information for rev 68