1 //==========================================================================
5 // Linux I/O support for Cirrus Logic EDB7xxx eval board tools
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
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38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //==========================================================================
41 //#####DESCRIPTIONBEGIN####
44 // Contributors: gthomas
46 // Description: Linux I/O support for Cirrus Logic EDB7xxx FLASH tools
47 //####DESCRIPTIONEND####
50 // io.c - I/O functions
54 #include <sys/ioctl.h>
59 char _ReceiveChar(long port)
63 // Port is in non-blocking mode, this needs to have a loop
65 res = read(port, &buf, 1);
67 // printf("Read: %c\n", buf);
76 for (cnt = 1; cnt < 2000; cnt++) ;
80 void _SendChar(long port, char ch)
84 // printf("Send: %x\n", ch);
89 void _SetBaud(long port, long reqRate)
94 // Get original configuration
95 if (tcgetattr(port, &buf)) {
96 fprintf(stderr, "Can't get port config\n");
101 buf.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
102 |INLCR|IGNCR|ICRNL|IXON);
103 buf.c_oflag &= ~OPOST;
104 buf.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
105 buf.c_cflag &= ~(CSIZE|PARENB);
123 cfsetispeed(&buf, rate);
124 cfsetospeed(&buf, rate);
127 buf.c_cflag &= ~CSIZE;
131 buf.c_cflag &= ~CSTOPB; // One stop
134 buf.c_cflag &= ~(PARENB | PARODD); // no parity.
136 // Set the new settings
137 if (tcsetattr(port, TCSADRAIN, &buf)) {
138 fprintf(stderr, "Error: tcsetattr\n");
143 usleep(1000000/10*2);
147 int _CharReady(long port)
150 // Windows doesn't support the below ioctl
154 res = ioctl(port, FIONREAD, &n);
156 fprintf(stderr, "I/O error: %s\n", strerror(errno));
159 return n; // Non-zero if characters ready to read
163 void _WaitForOutputEmpty(long port)
168 long _OpenPort(char *name)
171 fd = open(name, O_RDWR|O_NONBLOCK);