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Merge pull request #169 from attila-v/feature/bit-order

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Add bit reverse order feature
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Martin Lund 2022-09-29 18:09:08 +02:00 • committed by GitHub
commit acefbbbe6c
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4 changed files with 38 additions and 2 deletions
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2
man/tio.1.in
View file

@ -167,6 +167,8 @@ Map DEL to BS on output
Map NL to CR-NL on output
.IP "\fBOLTU"
Map lowercase characters to uppercase on output
.IP "\fBMSB2LSB"
Map MSB bit order to LSB on output
.P
If defining more than one flag, the flags must be comma separated.
.RE

2
man/tio.1.txt
View file

@ -131,6 +131,8 @@ OPTIONS
OLTU Map lowercase characters to uppercase on output
MSB2LSB Map MSB bit order to LSB on output
If defining more than one flag, the flags must be comma separated.
-x, --hexadecimal

2
src/bash-completion/tio.in
View file

@ -94,7 +94,7 @@ _tio()
return 0
;;
-m | --map)
COMPREPLY=( $(compgen -W "ICRNL IGNCR INLCR INLCRNL OCRNL ODELBS ONLCRNL" -- ${cur}) )
COMPREPLY=( $(compgen -W "ICRNL IGNCR INLCR INLCRNL OCRNL ODELBS ONLCRNL MSB2LSB" -- ${cur}) )
return 0
;;
-t | --timestamp)

34
src/tty.c
View file

@ -84,6 +84,7 @@
#define KEY_H 0x68
#define KEY_L 0x6C
#define KEY_SHIFT_L 0x4C
#define KEY_M 0x6D
#define KEY_P 0x70
#define KEY_Q 0x71
#define KEY_S 0x73
@ -126,6 +127,7 @@ static bool map_o_cr_nl = false;
static bool map_o_nl_crnl = false;
static bool map_o_del_bs = false;
static bool map_o_ltu = false;
static bool map_o_msblsb = false;
static char hex_chars[2];
static unsigned char hex_char_index = 0;
static char tty_buffer[BUFSIZ*2];
@ -410,6 +412,7 @@ void handle_command_sequence(char input_char, char previous_char, char *output_c
tio_printf(" ctrl-%c h Toggle hexadecimal mode", option.prefix_key);
tio_printf(" ctrl-%c l Clear screen", option.prefix_key);
tio_printf(" ctrl-%c L Show line states", option.prefix_key);
tio_printf(" ctrl-%c m Toggle MSB to LSB bit order", option.prefix_key);
tio_printf(" ctrl-%c p Pulse serial port line", option.prefix_key);
tio_printf(" ctrl-%c q Quit", option.prefix_key);
tio_printf(" ctrl-%c s Show statistics", option.prefix_key);
@ -498,6 +501,20 @@ void handle_command_sequence(char input_char, char previous_char, char *output_c
printf("\033c");
break;
case KEY_M:
/* Toggle bit order */
if (!map_o_msblsb)
{
map_o_msblsb = true;
tio_printf("Switched to reverse bit order");
}
else
{
map_o_msblsb = false;
tio_printf("Switched to normal bit order");
}
break;
case KEY_Q:
/* Exit upon ctrl-t q sequence */
exit(EXIT_SUCCESS);
@ -860,6 +877,10 @@ void tty_configure(void)
{
map_o_ltu = true;
}
else if (strcmp(token, "MSB2LSB") == 0)
{
map_o_msblsb = true;
}
else
{
printf("Error: Unknown mapping flag %s\n", token);
@ -1219,8 +1240,19 @@ int tty_connect(void)
}
}
/* Convert MSB to LSB bit order */
if (map_o_msblsb)
{
char ch = input_char;
input_char = 0;
for (int j = 0; j < 8; ++j)
{
input_char |= ((1 << j) & ch) ? (1 << (7 - j)) : 0;
}
}
/* Map input character */
if ((input_char == '\n') && (map_i_nl_crnl))
if ((input_char == '\n') && (map_i_nl_crnl) && (!map_o_msblsb))
{
print('\r');
print('\n');