FreeCalypso > hg > fc-usbser-tools

annotate cp2102/read_baudtab.c @ 76:957fb6e08577

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ftee-gen232r: add ftdi-chip setting
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Sep 2023 00:38:58 +0000
parents ae8075bcc029
children 8d35346f1d46
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
53
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This program locates a CP2102 device via libusb, reads its internal
60
ae8075bcc029 cp2102-read-baudtab program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
3 * 1024-byte EEPROM, decodes the baud rate table portion thereof
ae8075bcc029 cp2102-read-baudtab program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
4 * and prints the decoded table.
53
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/types.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <string.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <strings.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdio.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdlib.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <unistd.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <usb.h>
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include "../libuwrap/find_dev.h"
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #include "cp210x_defs.h"
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 u_char eeprom[SIZE_EEPROM];
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 main(argc, argv)
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 char **argv;
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 {
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 struct usb_device *dev;
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 usb_dev_handle *usbh;
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (argc != 2) {
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 fprintf(stderr, "usage: %s device-selector\n", argv[0]);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 exit(1);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 }
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 dev = find_usbdev_by_desc_string(argv[1]);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 if (!dev) {
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 fprintf(stderr, "error: specified USB device not found\n");
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 exit(1);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 }
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 usbh = usb_open(dev);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 if (!usbh) {
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 fprintf(stderr, "error: usb_open() failed\n");
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 exit(1);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 }
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 read_eeprom(usbh);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 usb_close(usbh);
60
ae8075bcc029 cp2102-read-baudtab program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents: 53
diff changeset
41 decode_baud_table(stdout);
53
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 exit(0);
d4d3531d342a cp2102-read-eeprom program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 }