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Support mark/space parity settings.

This commit is contained in:
Martin Ling 2013-11-25 18:05:58 +00:00
parent b251be4b26
commit e432ce6006
2 changed files with 29 additions and 5 deletions
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4
libserialport.h.in
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@ -144,6 +144,10 @@ enum sp_parity {
SP_PARITY_ODD = 1,
/** Even parity. */
SP_PARITY_EVEN = 2,
/** Mark parity. */
SP_PARITY_MARK = 3,
/** Space parity. */
SP_PARITY_SPACE = 4,
};
/** RTS pin behaviour. */

30
serialport.c
View File

@ -1024,11 +1024,17 @@ static enum sp_return get_config(struct sp_port *port, struct port_data *data,
case NOPARITY:
config->parity = SP_PARITY_NONE;
break;
case ODDPARITY:
config->parity = SP_PARITY_ODD;
break;
case EVENPARITY:
config->parity = SP_PARITY_EVEN;
break;
case ODDPARITY:
config->parity = SP_PARITY_ODD;
case MARKPARITY:
config->parity = SP_PARITY_MARK;
break;
case SPACEPARITY:
config->parity = SP_PARITY_SPACE;
break;
default:
config->parity = -1;
@ -1150,6 +1156,8 @@ static enum sp_return get_config(struct sp_port *port, struct port_data *data,
config->parity = SP_PARITY_NONE;
else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR))
config->parity = -1;
else if (data->term.c_cflag & CMSPAR)
config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE;
else
config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN;
@ -1231,11 +1239,17 @@ static enum sp_return set_config(struct sp_port *port, struct port_data *data,
case SP_PARITY_NONE:
data->dcb.Parity = NOPARITY;
break;
case SP_PARITY_ODD:
data->dcb.Parity = ODDPARITY;
break;
case SP_PARITY_EVEN:
data->dcb.Parity = EVENPARITY;
break;
case SP_PARITY_ODD:
data->dcb.Parity = ODDPARITY;
case SP_PARITY_MARK:
data->dcb.Parity = MARKPARITY;
break;
case SP_PARITY_SPACE:
data->dcb.Parity = SPACEPARITY;
break;
default:
RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting");
@ -1393,7 +1407,7 @@ static enum sp_return set_config(struct sp_port *port, struct port_data *data,
if (config->parity >= 0) {
data->term.c_iflag &= ~IGNPAR;
data->term.c_cflag &= ~(PARENB | PARODD);
data->term.c_cflag &= ~(PARENB | PARODD | CMSPAR);
switch (config->parity) {
case SP_PARITY_NONE:
data->term.c_iflag |= IGNPAR;
@ -1404,6 +1418,12 @@ static enum sp_return set_config(struct sp_port *port, struct port_data *data,
case SP_PARITY_ODD:
data->term.c_cflag |= PARENB | PARODD;
break;
case SP_PARITY_MARK:
data->term.c_cflag |= PARENB | PARODD | CMSPAR;
break;
case SP_PARITY_SPACE:
data->term.c_cflag |= PARENB | CMSPAR;
break;
default:
RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting");
}