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GDB: Add set/show serial parity command.

Browse Source 
The "set serial parity" command allows the user to control which
parity to use when communicating over a serial connection, rather
than having the parity hardcoded to none.

gdb/ChangeLog:

        * NEWS: Mention set/show serial parity command.
        * monitor.c (monitor_open): Call serial_setparity.
        * remote.c (remote_open_1): Likewise.
        * ser-base.c (ser_base_serparity): New function.
        * ser-base.h (ser_base_setparity): Add  declaration.
        * ser-go32.c (dos_ops): Set "setparity" field.
        * ser-mingw.c (ser_windows_raw): Do not set state.fParity and
        state.Parity.
        (ser_windows_setparity): New function.
        (hardwire_ops): Add ser_windows_setparity.
        (tty_ops): Add NULL for setparity field.
        (pipe_ops): Add ser_base_setparity.
        (tcp_ops): Likewise.
        * ser-pipe.c (pipe_ops): Likewise.
        * ser-tcp.c (tcp_ops): Likewise.
        * ser-unix.c (hardwire_setparity): Add declaration.
        (hardwire_raw): Don't reset PARENB flag.
        (hardwire_setparity): New function.
        (hardwire_ops): Add hardwire_setparity.
        * serial.c (serial_setparity): New function.
        (serial_parity): New global.
        (parity_none, parity_odd, parity_even, parity_enums, parity):
        New static globals.
        (set_parity): New function.
        (_initialize_serial): Add set/show serial parity commands.
        * serial.h (GDBPARITY_NONE): Define.
        (GDBPARITY_ODD): Define.
        (GDBPARITY_EVEN): Define.
        (serial_setparity) Add declaration.
        (struct serial_ops): Add setparity field.
        * target.h (serial_parity): Add declaration.

gdb/doc/ChangeLog:

        * gdb.texinfo (Remote configuration): Document "set/show
        serial parity" command.
This commit is contained in:
Yury Grechishchev
2015-03-24 00:15:42 +03:00
committed by Joel Brobecker
parent 32b40af94e
commit 236af5e336
16 changed files with 206 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
gdb/ser-unix.c
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@ -83,6 +83,7 @@ static int hardwire_readchar (struct serial *scb, int timeout);
static int do_hardwire_readchar (struct serial *scb, int timeout);
static int rate_to_code (int rate);
static int hardwire_setbaudrate (struct serial *scb, int rate);
static int hardwire_setparity (struct serial *scb, int parity);
static void hardwire_close (struct serial *scb);
static int get_tty_state (struct serial *scb,
struct hardwire_ttystate * state);
@ -409,7 +410,7 @@ hardwire_raw (struct serial *scb)
state.termios.c_iflag = 0;
state.termios.c_oflag = 0;
state.termios.c_lflag = 0;
state.termios.c_cflag &= ~(CSIZE | PARENB);
state.termios.c_cflag &= ~CSIZE;
state.termios.c_cflag |= CLOCAL | CS8;
#ifdef CRTSCTS
/* h/w flow control. */
@ -432,7 +433,7 @@ hardwire_raw (struct serial *scb)
state.termio.c_iflag = 0;
state.termio.c_oflag = 0;
state.termio.c_lflag = 0;
state.termio.c_cflag &= ~(CSIZE | PARENB);
state.termio.c_cflag &= ~CSIZE;
state.termio.c_cflag |= CLOCAL | CS8;
state.termio.c_cc[VMIN] = 0;
state.termio.c_cc[VTIME] = 0;
@ -893,6 +894,51 @@ hardwire_setstopbits (struct serial *scb, int num)
return set_tty_state (scb, &state);
}
/* Implement the "setparity" serial_ops callback. */
static int
hardwire_setparity (struct serial *scb, int parity)
{
struct hardwire_ttystate state;
int newparity = 0;
if (get_tty_state (scb, &state))
return -1;
switch (parity)
{
case GDBPARITY_NONE:
newparity = 0;
break;
case GDBPARITY_ODD:
newparity = PARENB | PARODD;
break;
case GDBPARITY_EVEN:
newparity = PARENB;
break;
default:
internal_warning (__FILE__, __LINE__,
"Incorrect parity value: %d", parity);
return -1;
}
#ifdef HAVE_TERMIOS
state.termios.c_cflag &= ~(PARENB | PARODD);
state.termios.c_cflag |= newparity;
#endif
#ifdef HAVE_TERMIO
state.termio.c_cflag &= ~(PARENB | PARODD);
state.termio.c_cflag |= newparity;
#endif
#ifdef HAVE_SGTTY
return 0; /* sgtty doesn't support this */
#endif
return set_tty_state (scb, &state);
}
static void
hardwire_close (struct serial *scb)
{
@ -929,6 +975,7 @@ static const struct serial_ops hardwire_ops =
hardwire_noflush_set_tty_state,
hardwire_setbaudrate,
hardwire_setstopbits,
hardwire_setparity,
hardwire_drain_output,
ser_base_async,
ser_unix_read_prim,