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serial: add serial_set_paramstr()

This commit is contained in:
Bert Vermeulen 2012-09-02 15:02:24 +02:00
parent f38b9763fa
commit 792fc68658
2 changed files with 46 additions and 0 deletions
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45
hardware/common/serial.c
View File

@ -322,3 +322,48 @@ SR_PRIV int serial_set_params(int fd, int baudrate, int bits, int parity,
return SR_OK;
}
#define SERIAL_COMM_SPEC "^(\\d+)/([78])([neo])([12])$"
SR_PRIV int serial_set_paramstr(int fd, const char *paramstr)
{
GRegex *reg;
GMatchInfo *match;
int speed, databits, parity, stopbits;
char *mstr;
speed = databits = parity = stopbits = 0;
reg = g_regex_new(SERIAL_COMM_SPEC, 0, 0, NULL);
if (g_regex_match(reg, paramstr, 0, &match)) {
if ((mstr = g_match_info_fetch(match, 1)))
speed = strtoul(mstr, NULL, 10);
g_free(mstr);
if ((mstr = g_match_info_fetch(match, 2)))
databits = strtoul(mstr, NULL, 10);
g_free(mstr);
if ((mstr = g_match_info_fetch(match, 3))) {
switch (mstr[0]) {
case 'n':
parity = SERIAL_PARITY_NONE;
break;
case 'e':
parity = SERIAL_PARITY_EVEN;
break;
case 'o':
parity = SERIAL_PARITY_ODD;
break;
}
}
g_free(mstr);
if ((mstr = g_match_info_fetch(match, 4)))
stopbits = strtoul(mstr, NULL, 10);
g_free(mstr);
}
g_match_info_unref(match);
g_regex_unref(reg);
if (speed)
return serial_set_params(fd, speed, databits, parity, stopbits, 0);
else
return SR_ERR_ARG;
}

1
libsigrok-internal.h
View File

@ -112,6 +112,7 @@ SR_PRIV void *serial_backup_params(int fd);
SR_PRIV void serial_restore_params(int fd, void *backup);
SR_PRIV int serial_set_params(int fd, int baudrate, int bits, int parity,
int stopbits, int flowcontrol);
SR_PRIV int serial_set_paramstr(int fd, const char *paramstr);
/*--- hardware/common/ezusb.c -----------------------------------------------*/