New BSP from Tony R. Ambardar <tonya@ece.ubc.ca> from the

University of British Columbia.  The BSP is for:

    Yes, this is the "entry model" of a series of boards from Technologic
    Systems. Costs <$200 I believe. They have a WWW page at www.t-systems.com.
    I am letting them know about the availability of this BSP too.

1 files changed, 191 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/i386/ts_386ex/clock/ckinit.c b/c/src/lib/libbsp/i386/ts_386ex/clock/ckinit.c
new file mode 100644
index 0000000000..80b644b5a4
--- /dev/null
+++ b/c/src/lib/libbsp/i386/ts_386ex/clock/ckinit.c
@@ -0,0 +1,191 @@
+/*  Clock_initialize
+ *
+ *  This routine initializes the Timer/Counter on the Intel
+ *  386ex evaluation board.
+ *
+ *  The tick frequency is 1 millisecond.
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  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 <irq.h>
+
+#include <rtems/libio.h>
+
+#include <stdlib.h>
+
+rtems_unsigned32 Clock_isrs;              /* ISRs until next tick */
+static rtems_unsigned32 Clock_initial_isr_value;
+
+volatile rtems_unsigned32 Clock_driver_ticks;
+
+void Clock_exit( void );
+
+/*
+ * These are set by clock driver during its init
+ */
+ 
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_major_number rtems_clock_minor = 0;
+
+/*
+ *  This is the ISR handler.
+ */
+
+void Clock_isr()
+{
+  /* enable_tracing(); */
+  Clock_driver_ticks += 1;
+  if ( Clock_isrs == 1 ) {
+    rtems_clock_tick();
+    Clock_isrs = Clock_initial_isr_value; /* BSP_Configuration.microseconds_per_tick / 1000;*/
+  }
+  else
+    Clock_isrs -= 1;
+}
+
+void ClockOff(const rtems_irq_connect_data* unused)
+{
+  outport_byte (TIMER_CONFIG, 0x80 ); /* disable the counter timer */
+}
+
+void ClockOn(const rtems_irq_connect_data* unused)
+{
+  outport_byte (TIMER_CONFIG, 0x00 ); /* enable the counter timer */
+}
+
+int ClockIsOn(const rtems_irq_connect_data* unused)
+{
+  return ((i8259s_cache & 0x1) == 0);
+}
+
+static rtems_irq_connect_data clockIrqData = {BSP_PERIODIC_TIMER,
+					      Clock_isr,
+					      ClockOn,
+					      ClockOff,
+					      ClockIsOn};
+
+
+rtems_device_driver Clock_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  unsigned timer_counter_init_value;
+  unsigned char clock_lsb, clock_msb;
+
+#ifdef BSP_DEBUG
+  printk("Initializing clock driver in Clock_initialize().\n");
+#endif
+
+#ifdef LOAD_RTC_AT_START
+  /* Initialize clock from on-board real time clock.  This breaks the  */
+  /* test code which assumes which assumes the application will do it. */
+  {
+    rtems_time_of_day now;
+
+    /* External Prototypes */
+    extern void init_rtc(void);                /* defined in 'rtc.c' */
+    extern long rtc_read(rtems_time_of_day *); /* defined in 'rtc.c' */
+    
+#ifdef BSP_DEBUG
+    printk("Loading clock from on-board real-time clock.\n");
+#endif
+
+    init_rtc();
+    if (rtc_read(&now) >= 0)
+      rtems_clock_set(&now);
+  }
+#endif
+
+  Clock_driver_ticks = 0;
+
+  Clock_isrs = 
+    Clock_initial_isr_value = 
+    BSP_Configuration.microseconds_per_tick / 1000; /* ticks per clock_isr */
+  
+  /*
+   * configure the counter timer ( should be based on microsecs/tick )
+   * NB. The divisor(Clock_isrs) resolves the  is the same number that appears in confdefs.h
+   * when setting the microseconds_per_tick value.
+   */
+  ClockOff      ( &clockIrqData );
+  
+  timer_counter_init_value  =  BSP_Configuration.microseconds_per_tick / Clock_isrs;
+  clock_lsb = (unsigned char)timer_counter_init_value;
+  clock_msb = timer_counter_init_value >> 8;
+  
+  outport_byte (TIMER_MODE, TIMER_SEL0|TIMER_16BIT|TIMER_RATEGEN); 
+  outport_byte (TIMER_CNTR0, clock_lsb );   /* load LSB first */
+  outport_byte (TIMER_CNTR0, clock_msb );   /* then MSB       */
+ 
+  if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
+    printk("Unable to initialize system clock\n");
+    rtems_fatal_error_occurred(1);
+  }
+
+  /*
+   * make major/minor avail to others such as shared memory driver
+   */
+ 
+  rtems_clock_major = major;
+  rtems_clock_minor = minor;
+ 
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_device_driver Clock_control(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+    rtems_libio_ioctl_args_t *args = pargp;
+ 
+    if (args == 0)
+        goto done;
+ 
+    /*
+     * 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();
+    }
+    else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
+    {
+      if (!BSP_install_rtems_irq_handler (&clockIrqData)) {
+	printk("Error installing clock interrupt handler!\n");
+	rtems_fatal_error_occurred(1);
+      }
+#ifdef BSP_DEBUG
+      else
+	printk("Clock installed AGAIN\n");
+#endif
+    }
+ 
+done:
+    return RTEMS_SUCCESSFUL;
+}
+
+void Clock_exit()
+{
+  ClockOff(&clockIrqData);  
+  BSP_remove_rtems_irq_handler (&clockIrqData);
+}