along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+#ifndef SERIAL_H
+#define SERIAL_H
+
/* Terminal state pointer. This is specific to each type of interface. */
typedef PTR serial_ttystate;
unsigned char *bufp; /* Current byte */
unsigned char buf[BUFSIZ]; /* Da buffer itself */
int current_timeout; /* (termio{s} only), last value of VTIME */
+ /* ser-unix.c termio{,s} only, we still need to wait for this many more
+ seconds. */
+ int timeout_remaining;
+ char *name; /* The name of the device or host */
+ struct _serial_t *next; /* Pointer to the next serial_t */
+ int refcnt; /* Number of pointers to this block */
};
typedef struct _serial_t *serial_t;
+serial_t scb_base; /* Pointer to list of scb's */
+
struct serial_ops {
char *name;
struct serial_ops *next;
int (*readchar) PARAMS ((serial_t, int timeout));
int (*write) PARAMS ((serial_t, const char *str, int len));
int (*flush_output) PARAMS ((serial_t));
+ int (*flush_input) PARAMS ((serial_t));
+ int (*send_break) PARAMS ((serial_t));
void (*go_raw) PARAMS ((serial_t));
serial_ttystate (*get_tty_state) PARAMS ((serial_t));
int (*set_tty_state) PARAMS ((serial_t, serial_ttystate));
int (*noflush_set_tty_state)
PARAMS ((serial_t, serial_ttystate, serial_ttystate));
int (*setbaudrate) PARAMS ((serial_t, int rate));
- int (*set_process_group) PARAMS ((serial_t, serial_ttystate, int));
+ int (*setstopbits) PARAMS ((serial_t, int num));
};
/* Add a new serial interface to the interface list */
serial_t serial_open PARAMS ((const char *name));
-serial_t serial_fdopen PARAMS ((int fd));
+serial_t serial_fdopen PARAMS ((const int fd));
/* For most routines, if a failure is indicated, then errno should be
examined. */
#define SERIAL_FDOPEN(FD) serial_fdopen(FD)
-/* Flush pending output. */
+/* Flush pending output. Might also flush input (if this system can't flush
+ only output). */
#define SERIAL_FLUSH_OUTPUT(SERIAL_T) \
((SERIAL_T)->ops->flush_output((SERIAL_T)))
+/* Flush pending input. Might also flush output (if this system can't flush
+ only input). */
+
+#define SERIAL_FLUSH_INPUT(SERIAL_T)\
+ ((*(SERIAL_T)->ops->flush_input) ((SERIAL_T)))
+
+/* Send a break between 0.25 and 0.5 seconds long. */
+
+#define SERIAL_SEND_BREAK(SERIAL_T) \
+ ((*(SERIAL_T)->ops->send_break) (SERIAL_T))
+
/* Turn the port into raw mode. */
#define SERIAL_RAW(SERIAL_T) (SERIAL_T)->ops->go_raw((SERIAL_T))
#define SERIAL_GET_TTY_STATE(SERIAL_T) (SERIAL_T)->ops->get_tty_state((SERIAL_T))
/* Set the state of the tty to TTYSTATE. The change is immediate.
- When changing to or from raw mode, input might be discarded. */
+ When changing to or from raw mode, input might be discarded.
+ Returns 0 for success, negative value for error (in which case errno
+ contains the error). */
#define SERIAL_SET_TTY_STATE(SERIAL_T, TTYSTATE) (SERIAL_T)->ops->set_tty_state((SERIAL_T), (TTYSTATE))
/* printf_filtered a user-comprehensible description of ttystate. */
((*((SERIAL_T)->ops->noflush_set_tty_state)) \
((SERIAL_T), (NEW_TTYSTATE), (OLD_TTYSTATE)))
-/* Read one char from the serial device with TIMEOUT seconds timeout.
- Returns char if ok, else one of the following codes. Note that all
- error codes are guaranteed to be < 0. */
+/* Read one char from the serial device with TIMEOUT seconds to wait
+ or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
+ char if ok, else one of the following codes. Note that all error
+ codes are guaranteed to be < 0. */
#define SERIAL_ERROR -1 /* General error, see errno for details */
#define SERIAL_TIMEOUT -2
#define SERIAL_SETBAUDRATE(SERIAL_T, RATE) ((SERIAL_T)->ops->setbaudrate((SERIAL_T), RATE))
-/* Write LEN chars from STRING to the port SERIAL_T. Returns 0 for success,
+/* Set the number of stop bits to the value specified. Returns 0 for success,
-1 for failure. */
+#define SERIAL_1_STOPBITS 1
+#define SERIAL_1_AND_A_HALF_STOPBITS 2 /* 1.5 bits, snicker... */
+#define SERIAL_2_STOPBITS 3
+
+#define SERIAL_SETSTOPBITS(SERIAL_T, NUM) ((SERIAL_T)->ops->setstopbits((SERIAL_T), NUM))
+
+/* Write LEN chars from STRING to the port SERIAL_T. Returns 0 for
+ success, non-zero for failure. */
+
#define SERIAL_WRITE(SERIAL_T, STRING, LEN) ((SERIAL_T)->ops->write((SERIAL_T), STRING, LEN))
/* Push out all buffers, close the device and destroy SERIAL_T. */
#define SERIAL_UN_FDOPEN(SERIAL_T) (free (SERIAL_T))
-/* Set the process group saved in TTYSTATE to GROUP. This just modifies
- the ttystate setting; need to call SERIAL_SET_TTY_STATE for this to
- actually have any effect. If no job control, then don't do anything. */
-#define SERIAL_SET_PROCESS_GROUP(SERIAL_T, TTYSTATE, GROUP) \
- ((*((SERIAL_T)->ops->set_process_group)) (SERIAL_T, TTYSTATE, GROUP))
-
-/* Do we have job control? Can be assumed to always be the same within
- a given run of GDB. In ser-unix.c, ser-go32.c, etc. */
-extern int job_control;
-
-/* Set the process group of the caller to its own pid, or do nothing if
- we lack job control. */
-extern int gdb_setpgid PARAMS ((void));
+#endif /* SERIAL_H */
projects / deliverable / binutils-gdb.git / blobdiff