util/superiotool/serverengines.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include "superiotool.h"
   4
   5 #define DEVICE_ID_BYTE1_REG     0x20
   6 #define DEVICE_ID_BYTE2_REG     0x21
   7
   8 #define DEVICE_REV_REG          0x1f
   9
  10 static const struct superio_registers reg_table[] = {
  11         /*
  12          * Note: These register defaults are based on educated guessing,
  13          *       take them with a grain of salt.
  14          *
  15          * TODO: Don't know the ID registers yet: 0x21 probably is not an ID
  16          * register as it is being set in the BIOS. For now still use as there
  17          * is no known alternative.
  18          */
  19         {0x02c0, "SE-SM 4210-P01", {
  20                 {NOLDN, NULL,
  21                         {0x1f,0x20,0x21,0x22,0x23,0x2c,0x2d,0x2e,EOT},
  22                         {NANA,0x02,0xc0,0x00,0x00,RSVD,RSVD,RSVD,EOT}},
  23                 {0x0, "UNKNOWN",
  24                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  25                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  26                 {0x1, "COM2",
  27                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  28                         {0x00,0x02,0xf8,0x03,0x00,0x00,0x0c,EOT}},
  29                 {0x2, "COM1",
  30                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  31                         {0x00,0x03,0xf8,0x04,0x00,0x00,0x0c,EOT}},
  32                 {0x3, "UNKNOWN",
  33                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  34                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  35                 {0x4, "UNKNOWN",
  36                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  37                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  38                 {0x5, "UNKNOWN",
  39                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  40                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  41                 {0x6, "UNKNOWN",
  42                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  43                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  44                 {0x7, "UNKNOWN",
  45                         {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf2,EOT},
  46                         {NANA,NANA,NANA,NANA,NANA,NANA,NANA,EOT}},
  47                 {EOT}}},
  48         {EOT}
  49 };
  50
  51 static void enter_conf_mode_serverengines(uint16_t port)
  52 {
  53         OUTB(0x5a, port);
  54 }
  55
  56 static void exit_conf_mode_serverengines(uint16_t port)
  57 {
  58         OUTB(0xa5, port);
  59 }
  60
  61 void probe_idregs_serverengines(uint16_t port)
  62 {
  63         uint16_t id;
  64         uint8_t rev;
  65
  66         probing_for("Server Engines", "", port);
  67
  68         enter_conf_mode_serverengines(port);
  69
  70         id = regval(port, DEVICE_ID_BYTE1_REG) << 8;
  71         id |= regval(port, DEVICE_ID_BYTE2_REG);
  72
  73         /* TODO: Not documented/available on ServerEngines. */
  74         rev = regval(port, DEVICE_REV_REG);
  75
  76         if (superio_unknown(reg_table, id)) {
  77                 if (verbose)
  78                         printf(NOTFOUND "id=0x%04x, rev=0x%02x\n", id, rev);
  79                 exit_conf_mode_serverengines(port);
  80                 return;
  81         }
  82
  83         printf("Found Server Engines %s (id=0x%04x, rev=0x%02x) at 0x%x\n",
  84                get_superio_name(reg_table, id), id, rev, port);
  85         chip_found = 1;
  86
  87         dump_superio("Server Engines", reg_table, port, id, LDN_SEL);
  88
  89         exit_conf_mode_serverengines(port);
  90 }
  91
  92 void print_serverengines_chips(void)
  93 {
  94         print_vendor_chips("Server Engines", reg_table);
  95 }