New port of RTEMS to TI C3x and C4x.

5 files changed, 580 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/c4x/c4xsim/console/Makefile.am b/c/src/lib/libbsp/c4x/c4xsim/console/Makefile.am
new file mode 100644
index 0000000000..b05928ea32
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/console/Makefile.am
@@ -0,0 +1,34 @@
+## 
+## $Id$
+## 
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+PGM = $(ARCH)/console.rel
+
+VPATH = @srcdir@:@srcdir@/../../../shared
+
+C_FILES = console.c consolereserveresources.c debugio.c simio.c printk.c
+C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
+
+OBJS = $(C_O_FILES)
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../../../../../../automake/lib.am
+
+#
+# (OPTIONAL) Add local stuff here using +=
+#
+
+$(PGM): $(OBJS)
+	$(make-rel)
+
+# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
+
+all-local: $(ARCH) $(OBJS) $(PGM)
+
+.PRECIOUS: $(PGM)
+
+EXTRA_DIST = console.c consolereserveresources.c debugputs.c
+
+include $(top_srcdir)/../../../../../../automake/local.am
diff --git a/c/src/lib/libbsp/c4x/c4xsim/console/console.c b/c/src/lib/libbsp/c4x/c4xsim/console/console.c
new file mode 100644
index 0000000000..08fad800ea
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/console/console.c
@@ -0,0 +1,155 @@
+/*
+ *  This file contains the hardware specific portions of the TTY driver
+ *  for the serial ports on the erc32.
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include <simio.h>
+
+/*
+ *  console_outbyte_polled
+ *
+ *  This routine transmits a character using polling.
+ */
+
+void console_outbyte_polled(
+  int  port,
+  char ch
+);
+
+/*
+ *  console_inbyte_nonblocking 
+ *
+ *  This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking(
+  int port
+);
+
+/*
+ *  Console Termios Support Entry Points
+ *
+ */
+
+int console_write_support (
+  int minor,
+  const char *bufarg,
+  int len
+)
+{
+  int nwrite = 0;
+  const char *buf = bufarg;
+
+  while (nwrite < len) {
+    if ( *buf )
+      console_outbyte_polled( minor, *buf & 0x7f );
+    buf++;
+    nwrite++;
+  }
+  return nwrite;
+}
+
+/*
+ *  Console Device Driver Entry Points
+ *
+ */
+ 
+rtems_device_driver console_initialize(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  rtems_status_code status;
+
+  rtems_termios_initialize();
+
+  /*
+   *  Register Device Names
+   */
+
+  status = rtems_io_register_name( "/dev/console", major, 0 );
+  if (status != RTEMS_SUCCESSFUL)
+    rtems_fatal_error_occurred(status);
+
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_device_driver console_open(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  rtems_status_code sc;
+  static const rtems_termios_callbacks pollCallbacks = {
+    NULL,                        /* firstOpen */
+    NULL,                        /* lastClose */
+    console_inbyte_nonblocking,  /* pollRead */
+    console_write_support,       /* write */
+    NULL,                        /* setAttributes */
+    NULL,                        /* stopRemoteTx */
+    NULL,                        /* startRemoteTx */
+    0                            /* outputUsesInterrupts */
+  };
+
+
+  assert( minor <= 1 );
+  if ( minor > 2 )
+    return RTEMS_INVALID_NUMBER;
+ 
+  sc = rtems_termios_open (major, minor, arg, &pollCallbacks );
+
+  return RTEMS_SUCCESSFUL;
+}
+ 
+rtems_device_driver console_close(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return rtems_termios_close (arg);
+}
+ 
+rtems_device_driver console_read(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return rtems_termios_read (arg);
+}
+ 
+rtems_device_driver console_write(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return rtems_termios_write (arg);
+}
+ 
+rtems_device_driver console_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void                    * arg
+)
+{
+  return rtems_termios_ioctl (arg);
+}
diff --git a/c/src/lib/libbsp/c4x/c4xsim/console/consolereserveresources.c b/c/src/lib/libbsp/c4x/c4xsim/console/consolereserveresources.c
new file mode 100644
index 0000000000..40a65de7c5
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/console/consolereserveresources.c
@@ -0,0 +1,26 @@
+/*
+ *  This file contains the TTY driver for the serial ports on the erc32.
+ *
+ *  This driver uses the termios pseudo driver.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  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.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+void console_reserve_resources(
+  rtems_configuration_table *configuration
+)
+{
+  rtems_termios_reserve_resources( configuration, 2 );
+}
diff --git a/c/src/lib/libbsp/c4x/c4xsim/console/debugio.c b/c/src/lib/libbsp/c4x/c4xsim/console/debugio.c
new file mode 100644
index 0000000000..5c066bcad0
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/console/debugio.c
@@ -0,0 +1,57 @@
+/*
+ *  This file contains the TTY driver for the serial ports on the erc32.
+ *
+ *  This driver uses the termios pseudo driver.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  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.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include <simio.h>
+
+/*
+ *  console_outbyte_polled
+ *
+ *  This routine transmits a character using polling.
+ */
+
+void console_outbyte_polled(
+  int  port,
+  char ch
+)
+{
+  char out[2];
+  out[0] = ch;
+  out[1] = 0;
+  sim_write(1, out, 1);
+}
+
+C4X_BSP_output_char( int c )
+{
+  console_outbyte_polled( 0, (char) c );
+}
+
+/*
+ *  console_inbyte_nonblocking 
+ *
+ *  This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking( int port )
+{
+  char c;
+  sim_read(1, &c, 1);
+  return c;
+}
+
diff --git a/c/src/lib/libbsp/c4x/c4xsim/console/simio.c b/c/src/lib/libbsp/c4x/c4xsim/console/simio.c
new file mode 100644
index 0000000000..6b976737e4
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/c4xsim/console/simio.c
@@ -0,0 +1,308 @@
+/*
+ *  C4x simulator IO interface routines based on code provided
+ *  by Herman ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
+ *
+ *  $Id$
+ */
+
+#include <stdio.h>
+
+#define	SIM_OPEN	(0xf0)
+#define	SIM_CLOSE	(0xf1)
+#define	SIM_READ	(0xf2)
+#define	SIM_WRITE	(0xf3)
+#define	SIM_LSEEK	(0xf4)
+#define	SIM_UNLINK	(0xf5)
+#define	SIM_GETENV	(0xf6)
+#define	SIM_RENAME	(0xf7)
+#define	SIM_GETTIME	(0xf8)
+#define	SIM_GETCLOCK	(0xf9)
+
+typedef union _io {
+  struct _open {
+    int	fd    : 16;
+    int	flags : 16;
+  } open;
+  struct _openr {
+    int	result : 16;
+  } openr;
+  struct _close {
+    int	fd     : 16;
+  } close;
+  struct _closer {
+    int	result : 16;
+  } closer;
+  struct _read {
+    int	fd    : 16;
+    int	count : 16;
+  } read;
+  struct _readr {
+    int	result : 16;
+  } readr;
+  struct _write {
+    int	fd    : 16;
+    int	count : 16;
+  } write;
+  struct _writer {
+    int	result : 16;
+  } writer;
+  struct _lseek {
+    int	fd         : 16;
+    int	offsetlow  : 16;
+    int	offsethigh : 16;
+    int	orgin	   : 16;
+  } lseek;
+  struct _lseekr {
+    int	result;
+  } lseekr;
+  struct _unlinkr {
+    int	result : 16;
+  } unlinkr;
+  struct _renamer {
+    int	result : 16;
+  } renamer;
+  struct _getenvr {
+    int	result : 16;
+  } getenvr;
+  struct _gettimer {
+    int	result;
+  } gettimer;
+  struct _getclockr {
+    int	result;
+  } getclockr;
+  struct _common {
+    int	word1;
+    int	word2;
+  } common;
+} io;
+
+static void to_sim(int command, io *param, char *data, int length);
+static void call_sim(void);
+static void from_sim(io *param, char *data);
+
+void sim_exit(void)
+{
+  __asm__(" .global C$$EXIT");
+  __asm__("C$$EXIT: nop");
+  __asm__("nop");
+}
+
+int sim_open(const char *path, unsigned flags, int fno)
+{
+  io param;
+
+  param.open.fd = fno;
+  param.open.flags = flags;
+  to_sim(SIM_OPEN,&param,(char *)path,strlen(path)+1);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.openr.result;
+}
+
+int sim_close(int fno)
+{
+  io param;
+
+  param.close.fd = fno;
+  to_sim(SIM_CLOSE,&param,NULL,0);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.closer.result;
+}
+
+int sim_read(int fno, char *buf, unsigned count)
+{
+  io param;
+
+  param.read.fd = fno;
+  param.read.count = count;
+  to_sim(SIM_READ,&param,NULL,0);
+  call_sim();
+  from_sim(&param, buf);
+  return param.readr.result;
+}
+
+int sim_write(int fno, const char *buf, unsigned count)
+{
+  io param;
+
+  param.write.fd = fno;
+  param.write.count = count;
+  to_sim(SIM_WRITE,&param,(char *)buf,count);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.writer.result;
+}
+
+fpos_t sim_lseek(int fno, fpos_t offset, int origin)
+{
+  io param;
+
+  param.lseek.fd = fno;
+  param.lseek.offsetlow = offset & 0xffff;
+  param.lseek.offsethigh = offset >> 16;
+  to_sim(SIM_LSEEK,&param,NULL,0);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.lseekr.result;
+}
+
+int sim_unlink(const char *path)
+{
+  io param;
+
+  to_sim(SIM_UNLINK,NULL,(char *)path,strlen(path)+1);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.unlinkr.result;
+}
+
+int sim_rename(const char *old, const char *new)
+{
+  int l;
+  static char combined[200];
+  io param;
+
+  strcpy(combined,old);
+  l = strlen(old)+1;
+  strcpy(combined+l,new);
+  l += strlen(new) + 1;
+  to_sim(SIM_RENAME,NULL,combined,l);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.renamer.result;
+}
+
+char *sim_getenv(const char *str)
+{
+  io param;
+  static char result[200];
+
+  to_sim(SIM_GETENV,NULL,(char *)str,strlen(str)+1);
+  call_sim();
+  from_sim(&param, result);
+  return param.getenvr.result ? result : NULL;
+}
+
+int sim_gettime(void)
+{
+  io param;
+
+  to_sim(SIM_GETTIME,NULL,NULL,0);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.gettimer.result;
+}
+
+int sim_getclock(void)
+{
+  io param;
+
+  to_sim(SIM_GETCLOCK,NULL,NULL,0);
+  call_sim();
+  from_sim(&param, NULL);
+  return param.getclockr.result;
+}
+
+int _CIOBUF_[BUFSIZ+32];
+
+static void to_sim(int command, io *param, char *data, int length)
+{
+  int i;
+  int n;
+  int v;
+  int *ip = &_CIOBUF_[0];
+
+  *ip++ = length;
+  *ip++ = command;
+  if (param) {
+    *ip++ = param->common.word1;
+    *ip++ = param->common.word2;
+  }
+  else {
+    *ip++ = 0;
+    *ip++ = 0;
+  }
+  n = length & ~3;
+  for (i = 0 ; i < n ; i += 4) {
+    v = *data++ & 0xff;
+    v |= (*data++ & 0xff) << 8;
+    v |= (*data++ & 0xff) << 16;
+    v |= (*data++ & 0xff) << 24;
+    *ip++ = v;
+  }
+  v = 0;
+  for ( ; i < length ; i++) {
+    v |= (*data++ & 0xff) << ((i & 3) << 3);
+  }
+  *ip = v;
+}
+
+static void call_sim(void)
+{
+  __asm__(" .global C$$IO$$");
+  __asm__("C$$IO$$: nop");
+}
+
+static void from_sim(io *param, char *data)
+{
+  int i;
+  int l;
+  int n;
+  int v;
+  int *ip = &_CIOBUF_[0];
+
+  l = *ip++;
+  param->common.word1 = *ip++;
+  param->common.word2 = *ip++;
+  if (data != NULL) {
+    n = l & ~3;
+    for (i = 0 ; i < n ; i += 4) {
+      v = *ip++;
+      *data++ = v & 0xff;
+      *data++ = (v >> 8) & 0xff;
+      *data++ = (v >> 16) & 0xff;
+      *data++ = (v >> 24) & 0xff;
+    }
+    v = *ip;
+    for (; i < l ; i++) {
+      *data++ = v >> ((i & 3) << 3);
+    }
+  }
+}
+
+#if 0
+#include <fcntl.h>
+sim_io_test()
+{
+sim_write(1, "howdy\n", 6);
+}
+#endif
+
+/*
+ *  Debug junk
+ */
+#if 0
+void printk_wrapper(void)
+{
+  __asm__(" .global _printf");
+  __asm__("_printf: bu	_printk");
+}
+#endif
+
+#if 1
+#ifdef _HAVE_STDC
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+int __svfscanf(
+     register FILE *fp,
+     char const *fmt0,
+     va_list ap
+)
+{
+  return 0;
+}
+#endif