FreeCalypso > hg > fc-pcm-if
changeset 2:a4918a161d2e
sw: starting with libserial, copied from fc-sim-sniff
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 11 Oct 2024 22:37:11 +0000 |
| parents | b3190839cce3 |
| children | de85c3680d7e |
| files | .hgignore sw/libserial/Makefile sw/libserial/nonblock.c sw/libserial/openport.c sw/libserial/setbaud.c |
| diffstat | 5 files changed, 87 insertions(+), 0 deletions(-) [+] |
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--- a/.hgignore Fri Oct 11 21:11:24 2024 +0000 +++ b/.hgignore Fri Oct 11 22:37:11 2024 +0000 @@ -1,5 +1,7 @@ syntax: regexp +\.[oa]$ + \.asc$ \.bin$ \.json$
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sw/libserial/Makefile Fri Oct 11 22:37:11 2024 +0000 @@ -0,0 +1,13 @@ +CC= gcc +CFLAGS= -O2 +OBJS= nonblock.o openport.o setbaud.o +LIB= libserial.a + +all: ${LIB} + +${LIB}: ${OBJS} + ar rcu $@ ${OBJS} + ranlib $@ + +clean: + rm -f *.[oa] errs
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sw/libserial/nonblock.c Fri Oct 11 22:37:11 2024 +0000 @@ -0,0 +1,15 @@ +/* + * This module contains the set_serial_nonblock() function. + */ + +#include <sys/types.h> +#include <sys/ioctl.h> +#include <unistd.h> + +extern int target_fd; + +set_serial_nonblock(state) + int state; +{ + ioctl(target_fd, FIONBIO, &state); +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sw/libserial/openport.c Fri Oct 11 22:37:11 2024 +0000 @@ -0,0 +1,24 @@ +/* + * This module implements the basic serial port opening operation. + */ + +#include <sys/types.h> +#include <sys/file.h> +#include <sys/ioctl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +int target_fd; + +open_serial_port(ttyport) + char *ttyport; +{ + target_fd = open(ttyport, O_RDWR|O_NONBLOCK); + if (target_fd < 0) { + perror(ttyport); + exit(1); + } + ioctl(target_fd, TIOCEXCL); + return 0; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sw/libserial/setbaud.c Fri Oct 11 22:37:11 2024 +0000 @@ -0,0 +1,33 @@ +/* + * This module implements the termios/ioctl setting of the baud rate. + */ + +#include <sys/types.h> +#include <sys/ioctl.h> +#include <asm/ioctls.h> +#include <asm/termbits.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +extern int target_fd; + +set_serial_baudrate(br) + unsigned br; +{ + struct termios2 target_termios; + + target_termios.c_iflag = IGNBRK; + target_termios.c_oflag = 0; + target_termios.c_cflag = BOTHER|CLOCAL|HUPCL|CREAD|CS8; + target_termios.c_lflag = 0; + target_termios.c_cc[VMIN] = 1; + target_termios.c_cc[VTIME] = 0; + target_termios.c_ispeed = br; + target_termios.c_ospeed = br; + if (ioctl(target_fd, TCSETSF2, &target_termios) < 0) { + perror("TCSETSF2"); + exit(1); + } + return 0; +}