2000-11-27 Joel Sherrill <joel@OARcorp.com>

	* libc/termiostypes.h: New file -- missed in earlier commits.

1 files changed, 163 insertions, 0 deletions

diff --git a/c/src/lib/include/rtems/termiostypes.h b/c/src/lib/include/rtems/termiostypes.h
new file mode 100644
index 0000000000..10baa9a15f
--- /dev/null
+++ b/c/src/lib/include/rtems/termiostypes.h
@@ -0,0 +1,163 @@
+/*
+ *  RTEMS termios device support internal data structures
+ *
+ *  COPYRIGHT (c) 1989-2000.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#ifndef	TERMIOSTYPES_H
+#define	TERMIOSTYPES_H
+
+#include <rtems.h>
+#include <rtems/libio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Variables associated with the character buffer
+ */
+struct rtems_termios_rawbuf {
+  volatile char		*theBuf;
+  volatile unsigned int	Head;
+  volatile unsigned int	Tail;
+  volatile unsigned int	Size;
+  rtems_id		Semaphore;  
+};
+/*
+ * Variables associated with each termios instance.
+ * One structure for each hardware I/O device.
+ */
+struct rtems_termios_tty {
+	/*
+	 * Linked-list of active TERMIOS devices
+	 */
+	struct rtems_termios_tty	*forw;
+	struct rtems_termios_tty	*back;
+
+	/*
+	 * How many times has this device been opened
+	 */
+	int		refcount;
+
+	/*
+	 * This device
+	 */
+	rtems_device_major_number	major;
+	rtems_device_major_number	minor;
+
+	/*
+	 * Mutual-exclusion semaphores
+	 */
+	rtems_id	isem;
+	rtems_id	osem;
+
+	/*
+	 * The canonical (cooked) character buffer
+	 */
+	char		*cbuf;
+	int		ccount;
+	int		cindex;
+
+	/*
+	 * Keep track of cursor (printhead) position
+	 */
+	int		column;
+	int		read_start_column;
+
+	/*
+	 * The ioctl settings
+	 */
+	struct termios	termios;
+	rtems_interval	vtimeTicks;
+
+	/*
+	 * Raw input character buffer
+	 */
+        struct rtems_termios_rawbuf rawInBuf;
+	rtems_unsigned32	rawInBufSemaphoreOptions;
+	rtems_interval		rawInBufSemaphoreTimeout;
+	rtems_interval		rawInBufSemaphoreFirstTimeout;
+	unsigned int		rawInBufDropped;	/* Statistics */
+
+	/*
+	 * Raw output character buffer
+	 */
+        struct rtems_termios_rawbuf rawOutBuf;
+        int  t_dqlen; /* count of characters dequeued from device */
+	enum {rob_idle, rob_busy, rob_wait }	rawOutBufState;
+
+	/*
+	 * Callbacks to device-specific routines
+	 */
+	rtems_termios_callbacks	device;
+        volatile unsigned int   flow_ctrl;
+        unsigned int            lowwater,highwater;
+
+	/*
+	 * I/O task IDs (for task-driven drivers)
+	 */
+        rtems_id                rxTaskId;  
+        rtems_id                txTaskId;  
+        /*
+	 * line discipline related stuff
+	 */
+        int t_line;   /* id of line discipline                       */
+        void *t_sc;   /* hook for discipline-specific data structure */
+};
+
+struct linesw {
+  int (*l_open) (struct rtems_termios_tty *tp);
+  int (*l_close)(struct rtems_termios_tty *tp);
+  int (*l_read )(struct rtems_termios_tty *tp,rtems_libio_rw_args_t *args);
+  int (*l_write)(struct rtems_termios_tty *tp,rtems_libio_rw_args_t *args);
+  int (*l_rint )(int c,struct rtems_termios_tty *tp);
+  int (*l_start)(struct rtems_termios_tty *tp);
+  int (*l_ioctl)(struct rtems_termios_tty *tp,rtems_libio_ioctl_args_t *args);
+  int (*l_modem)(struct rtems_termios_tty *tp,int flags);
+};
+
+/*
+ * FIXME: this should move to libio.h!
+ * values for rtems_termios_callbacks.outputUsesInterrupts
+ */
+#define TERMIOS_POLLED      0
+#define TERMIOS_IRQ_DRIVEN  1
+#define TERMIOS_TASK_DRIVEN 2
+
+
+/*
+ * FIXME: this should move to termios.h!
+ */
+void rtems_termios_rxirq_occured(struct rtems_termios_tty *tty);
+/*
+ * FIXME: this should move to termios.h!
+ * put a string to output ring buffer
+ */
+void rtems_termios_puts (const char *buf, 
+			 int len, 
+			 struct rtems_termios_tty *tty);
+/*
+ * global hooks for line disciplines
+ */
+extern struct linesw linesw[];
+extern int nlinesw;
+
+#define	TTYDISC		0		/* termios tty line discipline */
+#define	TABLDISC	3		/* tablet discipline */
+#define	SLIPDISC	4		/* serial IP discipline */
+#define	PPPDISC		5		/* PPP discipline */
+#define MAXLDISC        8
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* TERMIOSTYPES_H */