sys/dev/i2c/xbseeprom.c

   1 /* $NetBSD: xbseeprom.c,v 1.5 2008/05/04 15:26:29 xtraeme Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2007, 2008 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 Serial EEPROM
  31  *
  32  * Documentation lives here:
  33  *  http://www.xbox-linux.org/wiki/Xbox_Serial_EEPROM
  34  */
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: xbseeprom.c,v 1.5 2008/05/04 15:26:29 xtraeme Exp $");
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/device.h>
  42 #include <sys/kmem.h>
  43 #include <sys/sysctl.h>
  44
  45 #include <dev/i2c/i2cvar.h>
  46
  47 static int      xbseeprom_match(device_t, cfdata_t, void *);
  48 static void     xbseeprom_attach(device_t, device_t, void *);
  49
  50 struct xbseeprom_data {
  51         /* factory settings */
  52         uint8_t         HMAC_SHA1_Hash[20];
  53         uint8_t         Confounder[8];
  54         uint8_t         HDDKkey[16];
  55         uint8_t         XBERegion[4];
  56         uint8_t         Checksum2[4];
  57         uint8_t         SerialNumber[12];
  58         uint8_t         MACAddress[6];
  59         uint8_t         UNKNOWN2[2];
  60         uint8_t         OnlineKey[16];
  61         uint8_t         VideoStandard[4];
  62         uint8_t         UNKNOWN3[4];
  63         /* user settings */
  64         uint8_t         Checksum3[4];
  65         uint8_t         TimeZoneBias[4];
  66         uint8_t         TimeZoneStdName[4];
  67         uint8_t         TimeZoneDltName[4];
  68         uint8_t         UNKNOWN4[8];
  69         uint8_t         TimeZoneStdDate[4];
  70         uint8_t         TimeZoneDltDate[4];
  71         uint8_t         UNKNOWN5[8];
  72         uint8_t         TimeZoneStdBias[4];
  73         uint8_t         TimeZoneDltBias[4];
  74         uint8_t         LanguageID[4];
  75         uint8_t         VideoFlags[4];
  76         uint8_t         AudioFlags[4];
  77         uint8_t         ParentalControlGames[4];
  78         uint8_t         ParentalControlPwd[4];
  79         uint8_t         ParentalControlMovies[4];
  80         uint8_t         XBOXLiveIPAddress[4];
  81         uint8_t         XBOXLiveDNS[4];
  82         uint8_t         XBOXLiveGateway[4];
  83         uint8_t         XBOXLiveSubnetMask[4];
  84         uint8_t         OtherSettings[4];
  85         uint8_t         DVDPlaybackKitZone[4];
  86         uint8_t         UNKNOWN6[64];
  87 };
  88
  89 #define XBSEEPROM_SIZE  (sizeof(struct xbseeprom_data))
  90
  91 struct xbseeprom_softc {
  92         device_t        sc_dev;
  93
  94         i2c_tag_t       sc_tag;
  95         i2c_addr_t      sc_addr;
  96
  97         struct xbseeprom_data *sc_data;
  98 };
  99
 100 static void     xbseeprom_read_1(struct xbseeprom_softc *, uint8_t, uint8_t *);
 101
 102 static char     xbseeprom_serial[17];
 103
 104 CFATTACH_DECL_NEW(xbseeprom, sizeof(struct xbseeprom_softc),
 105     xbseeprom_match, xbseeprom_attach, NULL, NULL);
 106
 107 static int
 108 xbseeprom_match(device_t parent, cfdata_t cf, void *opaque)
 109 {
 110         struct i2c_attach_args *ia = opaque;
 111
 112         /* Serial EEPROM always lives at 0x54 on Xbox */
 113         if (ia->ia_addr == 0x54)
 114                 return 1;
 115
 116         return 0;
 117 }
 118
 119 static void
 120 xbseeprom_attach(device_t parent, device_t self, void *opaque)
 121 {
 122         struct xbseeprom_softc *sc = device_private(self);
 123         struct i2c_attach_args *ia = opaque;
 124         uint8_t *ptr;
 125         int i;
 126
 127         sc->sc_dev = self;
 128         sc->sc_tag = ia->ia_tag;
 129         sc->sc_addr = ia->ia_addr;
 130
 131         sc->sc_data = kmem_alloc(XBSEEPROM_SIZE, KM_SLEEP);
 132         if (sc->sc_data == NULL) {
 133                 aprint_error(": Not enough memory to copy EEPROM\n");
 134                 return;
 135         }
 136
 137         aprint_normal(": Xbox Serial EEPROM\n");
 138
 139         /* Read in EEPROM contents */
 140         ptr = (uint8_t *)sc->sc_data;
 141         for (i = 0; i < XBSEEPROM_SIZE; i++, ptr++)
 142                 xbseeprom_read_1(sc, i, ptr);
 143
 144 #if 0
 145         /* Display some interesting information */
 146         aprint_normal_dev(self, "MAC address %02x:%02x:%02x:%02x:%02x:%02x\n",
 147             sc->sc_data->MACAddress[0], sc->sc_data->MACAddress[1],
 148             sc->sc_data->MACAddress[2], sc->sc_data->MACAddress[3],
 149             sc->sc_data->MACAddress[4], sc->sc_data->MACAddress[5]
 150             );
 151 #endif
 152
 153         /* Setup sysctl subtree */
 154         memset(xbseeprom_serial, 0, sizeof(xbseeprom_serial));
 155         memcpy(xbseeprom_serial, sc->sc_data->SerialNumber, 16);
 156
 157         sysctl_createv(NULL, 0, NULL, NULL,
 158             0, CTLTYPE_STRING, "xbox_serial",
 159             SYSCTL_DESCR("Xbox serial number"),
 160             NULL, 0, &xbseeprom_serial, 0,
 161             CTL_MACHDEP, CTL_CREATE, CTL_EOL);
 162
 163         return;
 164 }
 165
 166 static void
 167 xbseeprom_read_1(struct xbseeprom_softc *sc, uint8_t cmd, uint8_t *valp)
 168 {
 169         iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP,
 170             sc->sc_addr, &cmd, 1, valp, 1, I2C_F_POLL);
 171 }