Initial creation of sourceware repository

1 files changed, 0 insertions, 234 deletions

diff --git a/sim/ppc/hw_nvram.c b/sim/ppc/hw_nvram.c
deleted file mode 100644
index fbd8e11..0000000
--- a/sim/ppc/hw_nvram.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*  This file is part of the program psim.
-
-    Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
- 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- 
-    */
-
-
-#ifndef _HW_NVRAM_C_
-#define _HW_NVRAM_C_
-
-#ifndef STATIC_INLINE_HW_NVRAM
-#define STATIC_INLINE_HW_NVRAM STATIC_INLINE
-#endif
-
-#include "device_table.h"
-
-#ifdef HAVE_TIME_H
-#include <time.h>
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-
-/* NVRAM - non-volatile memory with optional clock.
-
-   Description:
-
-   This device implements a small byte addressable non-volatile memory
-   component.  The component may include an optional real-time clock
-   at its upper addresses.
-
-   Properties:
-
-   reg = <address> <size>.  Determine where the device lives in the
-   parents address space.
-
-   timezone = <integer>.  Adjustment to current host's GMT (in secons)
-   that should be applied when updating the NVRAM's clock. */
-
-typedef struct _hw_nvram_device {
-  unsigned8 *memory;
-  unsigned sizeof_memory;
-#ifdef HAVE_TIME_H
-  time_t host_time;
-#else
-  long host_time;
-#endif
-  unsigned timezone;
-  /* useful */
-  unsigned addr_year;
-  unsigned addr_month;
-  unsigned addr_date;
-  unsigned addr_day;
-  unsigned addr_hour;
-  unsigned addr_minutes;
-  unsigned addr_seconds;
-  unsigned addr_control;
-} hw_nvram_device;
-
-static void *
-hw_nvram_create(const char *name,
-		const device_unit *unit_address,
-		const char *args,
-		device *parent)
-{
-  hw_nvram_device *hw_nvram = ZALLOC(hw_nvram_device);
-  return hw_nvram;
-}
-
-typedef struct _hw_nvram_reg_spec {
-  unsigned32 base;
-  unsigned32 size;
-} hw_nvram_reg_spec;
-
-static void
-hw_nvram_init_address(device *me)
-{
-  hw_nvram_device *hw_nvram = (hw_nvram_device*)device_data(me);
-  const device_property *reg = device_find_array_property(me, "reg");
-  const hw_nvram_reg_spec *spec = reg->array;
-  int nr_entries = reg->sizeof_array / sizeof(*spec);
-  
-  if ((reg->sizeof_array % sizeof(*spec)) != 0)
-    error("devices/%s reg property of incorrect size\n", device_name(me));
-  if (nr_entries > 1)
-    error("devices/%s reg property contains multiple specs\n",
-	  device_name(me));
-  
-  /* initialize the hw_nvram */
-  if (hw_nvram->memory == NULL) {
-    hw_nvram->sizeof_memory = BE2H_4(spec->size);
-    hw_nvram->memory = zalloc(hw_nvram->sizeof_memory);
-  }
-  else
-    memset(hw_nvram->memory, hw_nvram->sizeof_memory, 0);
-  
-  hw_nvram->timezone = device_find_integer_property(me, "timezone");
-  
-  hw_nvram->addr_year = hw_nvram->sizeof_memory - 1;
-  hw_nvram->addr_month = hw_nvram->sizeof_memory - 2;
-  hw_nvram->addr_date = hw_nvram->sizeof_memory - 3;
-  hw_nvram->addr_day = hw_nvram->sizeof_memory - 4;
-  hw_nvram->addr_hour = hw_nvram->sizeof_memory - 5;
-  hw_nvram->addr_minutes = hw_nvram->sizeof_memory - 6;
-  hw_nvram->addr_seconds = hw_nvram->sizeof_memory - 7;
-  hw_nvram->addr_control = hw_nvram->sizeof_memory - 8;
-  
-  device_attach_address(device_parent(me),
-			device_name(me),
-			attach_callback,
-			0 /*address space*/,
-			BE2H_4(spec->base),
-			hw_nvram->sizeof_memory,
-			access_read_write_exec,
-			me);
-}
-
-static int
-hw_nvram_bcd(int val)
-{
-  return ((val / 10) << 4) + (val % 10);
-}
-
-/* If reached an update interval and allowed, update the clock within
-   the hw_nvram.  While this function could be implemented using events
-   it isn't on the assumption that the HW_NVRAM will hardly ever be
-   referenced and hence there is little need in keeping the clock
-   continually up-to-date */
-static void
-hw_nvram_update_clock(hw_nvram_device *hw_nvram, cpu *processor)
-{
-#ifdef HAVE_TIME_H
-  if (!(hw_nvram->memory[hw_nvram->addr_control] & 0xc0)) {
-    time_t host_time = time(NULL);
-    if (hw_nvram->host_time != host_time) {
-      time_t nvtime = hw_nvram->host_time + hw_nvram->timezone;
-      struct tm *clock = gmtime(&nvtime);
-      hw_nvram->host_time = host_time;
-      hw_nvram->memory[hw_nvram->addr_year] = hw_nvram_bcd(clock->tm_year);
-      hw_nvram->memory[hw_nvram->addr_month] = hw_nvram_bcd(clock->tm_mon + 1);
-      hw_nvram->memory[hw_nvram->addr_date] = hw_nvram_bcd(clock->tm_mday);
-      hw_nvram->memory[hw_nvram->addr_day] = hw_nvram_bcd(clock->tm_wday + 1);
-      hw_nvram->memory[hw_nvram->addr_hour] = hw_nvram_bcd(clock->tm_hour);
-      hw_nvram->memory[hw_nvram->addr_minutes] = hw_nvram_bcd(clock->tm_min);
-      hw_nvram->memory[hw_nvram->addr_seconds] = hw_nvram_bcd(clock->tm_sec);
-    }
-  }
-#else
-  error("fixme - where do I find out GMT\n");
-#endif
-}
-
-static void
-hw_nvram_set_clock(hw_nvram_device *hw_nvram, cpu *processor)
-{
-  error ("fixme - how do I set the localtime\n");
-}
-
-static unsigned
-hw_nvram_io_read_buffer(device *me,
-			void *dest,
-			int space,
-			unsigned_word addr,
-			unsigned nr_bytes,
-			cpu *processor,
-			unsigned_word cia)
-{
-  int i;
-  hw_nvram_device *hw_nvram = (hw_nvram_device*)device_data(me);
-  for (i = 0; i < nr_bytes; i++) {
-    unsigned address = (addr + i) % hw_nvram->sizeof_memory;
-    unsigned8 data = hw_nvram->memory[address];
-    hw_nvram_update_clock(hw_nvram, processor);
-    ((unsigned8*)dest)[i] = data;
-  }
-  return nr_bytes;
-}
-
-static unsigned
-hw_nvram_io_write_buffer(device *me,
-			 const void *source,
-			 int space,
-			 unsigned_word addr,
-			 unsigned nr_bytes,
-			 cpu *processor,
-			 unsigned_word cia)
-{
-  int i;
-  hw_nvram_device *hw_nvram = (hw_nvram_device*)device_data(me);
-  for (i = 0; i < nr_bytes; i++) {
-    unsigned address = (addr + i) % hw_nvram->sizeof_memory;
-    unsigned8 data = ((unsigned8*)source)[i];
-    if (address == hw_nvram->addr_control
-	&& (data & 0x80) == 0
-	&& (hw_nvram->memory[address] & 0x80) == 0x80)
-      hw_nvram_set_clock(hw_nvram, processor);
-    else
-      hw_nvram_update_clock(hw_nvram, processor);
-    hw_nvram->memory[address] = data;
-  }
-  return nr_bytes;
-}
-
-static device_callbacks const hw_nvram_callbacks = {
-  { hw_nvram_init_address, },
-  { NULL, }, /* address */
-  { hw_nvram_io_read_buffer, hw_nvram_io_write_buffer }, /* IO */
-};
-
-const device_descriptor hw_nvram_device_descriptor[] = {
-  { "nvram", hw_nvram_create, &hw_nvram_callbacks },
-  { NULL },
-};
-
-#endif /* _HW_NVRAM_C_ */