sys/arch/i386/xbox/xbox.c

   1 /* $NetBSD: xbox.c,v 1.3 2007/02/04 15:26:27 jmcneill Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*
  30  * Microsoft XBOX helper functions
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: xbox.c,v 1.3 2007/02/04 15:26:27 jmcneill Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/device.h>
  39
  40 #include <machine/bus.h>
  41
  42 #include <arch/i386/include/xbox.h>
  43
  44 #include "pic16lc.h"
  45
  46 #if NPIC16LC > 0
  47 extern void pic16lc_setled(uint8_t);
  48 extern void pic16lc_reboot(void);
  49 extern void pic16lc_poweroff(void);
  50 #endif
  51
  52 #define XBOX_NFORCE_NIC 0xfef00000
  53
  54 void
  55 xbox_startup(void)
  56 {
  57         bus_space_handle_t h;
  58         int rv;
  59
  60         if (!arch_i386_is_xbox)
  61                 return;
  62
  63         /*
  64          * From Rink Springer @ FreeBSD:
  65          *
  66          * Some XBOX loaders, such as Cromwell, have a flaw which cause the
  67          * nfe(4) driver to fail attaching to the NIC.
  68          *
  69          * This is because they leave the NIC running; this will cause the
  70          * Nvidia driver to fail as the NIC does not return any sensible
  71          * values and thus fails attaching (using an error 0x5, this means
  72          * it cannot find a valid PHY)
  73          *
  74          * We bluntly tell the NIC to stop whatever it's doing; this makes
  75          * nfe(4) attach correctly. As the NIC always resides at
  76          * 0xfef00000-0xfef003ff on an XBOX, we simply hardcode this address.
  77          */
  78         rv = bus_space_map(X86_BUS_SPACE_MEM, XBOX_NFORCE_NIC,
  79             0x400, 0, &h);
  80         if (!rv) {
  81                 bus_space_write_4(X86_BUS_SPACE_MEM, h, 0x188, 0);
  82                 bus_space_unmap(X86_BUS_SPACE_MEM, h, 0x400);
  83         }
  84
  85
  86 }
  87
  88 void
  89 xbox_setled(uint8_t val)
  90 {
  91 #if NPIC16LC > 0
  92         pic16lc_setled(val);
  93 #else
  94         printf("xbox_setled: pic16lc driver missing from kernel!\n");
  95 #endif
  96 }
  97
  98 void
  99 xbox_reboot(void)
 100 {
 101 #if NPIC16LC > 0
 102         pic16lc_reboot();
 103 #else
 104         printf("xbox_reboot: pic16lc driver missing from kernel!\n");
 105         printf("xbox_reboot: halting...\n");
 106         for (;;)
 107                 ;
 108 #endif
 109 }
 110
 111 void
 112 xbox_poweroff(void)
 113 {
 114 #if NPIC16LC > 0
 115         pic16lc_poweroff();
 116 #else
 117         printf("xbox_poweroff: pic16lc driver missing from kernel!\n");
 118         printf("xbox_poweroff: halting...\n");
 119         for (;;)
 120                 ;
 121 #endif
 122 }