2001-10-11 Alexandra Kossovsky <sasha@oktet.ru>

	* clock/Makefile.am, clock/ckinit.c, clock/.cvsignore, Makefile.am,
	README, bsp_specs, console/Makefile.am, console/console.c,
	console/.cvsignore, include/Makefile.am, include/bsp.h,
	include/coverhd.h, include/syscall.h, include/ramdisk.h,
	include/.cvsignore, start/Makefile.am, start/start.S,
	start/.cvsignore, startup/Makefile.am, startup/bspstart.c,
	startup/hw_init.c, startup/linkcmds, startup/linkcmds-le,
	startup/linkcmds-le.coff, startup/.cvsignore, timer/Makefile.am,
	timer/timer.c, timer/.cvsignore, wrapup/Makefile.am, wrapup/.cvsignore,
	configure.ac, .cvsignore, ChangeLog:  New files.
	Reviewed and updated to latest automake and autoconf standards
	by Ralf Corsepius <corsepiu@faw.uni-ulm.de>.

3 files changed, 224 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sh/simsh4/clock/.cvsignore b/c/src/lib/libbsp/sh/simsh4/clock/.cvsignore
new file mode 100644
index 0000000000..282522db03
--- /dev/null
+++ b/c/src/lib/libbsp/sh/simsh4/clock/.cvsignore
@@ -0,0 +1,2 @@
+Makefile
+Makefile.in
diff --git a/c/src/lib/libbsp/sh/simsh4/clock/Makefile.am b/c/src/lib/libbsp/sh/simsh4/clock/Makefile.am
new file mode 100644
index 0000000000..4a34199830
--- /dev/null
+++ b/c/src/lib/libbsp/sh/simsh4/clock/Makefile.am
@@ -0,0 +1,33 @@
+## 
+## $Id$
+## 
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+PGM = $(ARCH)/clock.rel
+
+C_FILES = ckinit.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/compile.am
+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: $(ARCH) $(OBJS) $(PGM)
+
+.PRECIOUS: $(PGM)
+
+EXTRA_DIST = ckinit.c
+
+include $(top_srcdir)/../../../../../../automake/local.am
diff --git a/c/src/lib/libbsp/sh/simsh4/clock/ckinit.c b/c/src/lib/libbsp/sh/simsh4/clock/ckinit.c
new file mode 100644
index 0000000000..4e07f09c49
--- /dev/null
+++ b/c/src/lib/libbsp/sh/simsh4/clock/ckinit.c
@@ -0,0 +1,189 @@
+/*
+ *  Clock Driver for SH4 simulator (timer interrupt not supported now).
+ *
+ *  Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
+ *  Author: Victor V. Vengerov <vvv@oktet.ru>
+ *
+ *  COPYRIGHT (c) 1989-2001.
+ *  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 <stdlib.h>
+#include <bsp.h>
+#include <rtems/libio.h>
+
+/*
+ * Clock_driver_ticks is a monotonically increasing counter of the
+ * number of clock ticks since the driver was initialized.
+ */
+volatile rtems_unsigned32 Clock_driver_ticks;
+
+
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+
+rtems_isr (*rtems_clock_hook)(rtems_vector_number) = NULL;
+
+static void
+set_clock_period(rtems_unsigned32 period)
+{
+    asm volatile ("\tmov %0,r0\n"
+                  "\ttrapa\t#4\n" 
+                  : 
+                  : "r" (period)
+                  : "r0" );
+}
+
+/* Clock_isr --
+ *     This handles the timer interrupt by clearing the timer's interrupt
+ *     flag and announcing the clock tick to the system.
+ *
+ * PARAMETERS:
+ *     vector - timer interrupt vector number
+ *
+ * RETURNS:
+ *     none
+ */
+rtems_isr
+Clock_isr (rtems_vector_number vector)
+{
+    /* Announce the clock tick */
+    Clock_driver_ticks++;
+    rtems_clock_tick();
+}
+
+
+/* Clock_exit --
+ *     This shuts down the timer if it was enabled and removes it
+ *     from the interrupt mask.
+ *
+ * PARAMETERS:
+ *     none
+ *
+ * RETURNS:
+ *     none
+ */
+void
+Clock_exit(void)
+{
+    if (BSP_Configuration.ticks_per_timeslice)
+    {
+        /* disable all timer1 interrupts */
+        set_clock_period(0);
+    }
+}
+
+
+/* Install_clock --
+ *     This initialises timer1 with the BSP timeslice config value
+ *     as a reference and sets up the interrupt handler for clock ticks.
+ *
+ * PARAMETERS:
+ *     clock_isr - clock interrupt handler routine
+ *
+ * RETURNS:
+ *     none.
+ */
+static void
+Install_clock(rtems_isr_entry clock_isr)
+{
+    rtems_unsigned32 period;
+    Clock_driver_ticks = 0;
+    if (BSP_Configuration.ticks_per_timeslice)
+    {
+        void *old_isr;
+        period = Cpu_table.clicks_per_second / 
+                 BSP_Configuration.ticks_per_timeslice;
+        
+        /* Configure timer interrupts */
+        set_clock_period(period);
+        
+        /* Register the interrupt handler */
+        rtems_interrupt_catch(clock_isr, CLOCK_VECTOR, &old_isr);
+        
+        /* Register the driver exit procedure so we can shutdown */
+        atexit(Clock_exit);
+    }
+}
+
+
+/* Clock_initialize --
+ *     This is called to setup the clock driver. It calls the hardware
+ *     setup function and make the driver major/minor values available
+ *     for other.
+ *
+ * PARAMETERS:
+ *     major - clock device major number
+ *     minor - clock device minor number
+ *     pargp - device driver initialization argument (not used)
+ *
+ * RETURNS:
+ *     RTEMS status code
+ */
+rtems_device_driver
+Clock_initialize(rtems_device_major_number major,
+                 rtems_device_minor_number minor,
+                 void *pargp)
+{
+    Install_clock (Clock_isr);
+ 
+    /* Make major/minor avail to others such as shared memory driver */
+    rtems_clock_major = major;
+    rtems_clock_minor = minor;
+ 
+    return RTEMS_SUCCESSFUL;
+}
+ 
+
+/* Clock_control --
+ *     I/O control (IOCTL) function for Clock driver. At this moment this
+ *     just runs the interrupt handler or re-registers the interrupt handler
+ *     on request.
+ *
+ * PARAMETERS:
+ *     major - clock major device number
+ *     minor - clock minor device number
+ *     pargp - pointer to IOCTL arguments
+ *
+ * RETURNS:
+ *     RTEMS status code
+ */
+rtems_device_driver
+Clock_control(rtems_device_major_number major,
+              rtems_device_minor_number minor,
+              void *pargp)
+{
+    rtems_unsigned32 isrlevel;
+    rtems_libio_ioctl_args_t *args = pargp;
+
+    if (args)
+    {
+        void *old_isr;
+        /*
+         * This is hokey, but until we get a defined interface
+         * to do this, it will just be this simple...
+         */
+        if (args->command == rtems_build_name('I', 'S', 'R', ' ')) 
+        {
+            Clock_isr(CLOCK_VECTOR);
+        }
+        else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
+        {
+            rtems_interrupt_disable( isrlevel );
+            rtems_interrupt_catch(Clock_isr, CLOCK_VECTOR, &old_isr);
+            rtems_interrupt_enable( isrlevel );
+        }
+    }
+    return RTEMS_SUCCESSFUL;
+}