[LinuxBIOS] [PATCH] probe_superio: add ITE support

ron minnich rminnich at gmail.com
Thu Aug 30 17:14:53 CEST 2007


If this is not acked yet
Acked-by: Ronald G. Minnich <rminnich at gmail.com>

I hope somebody has a way to test, I do not, but this looks to useful to lose.

On 8/22/07, Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net> wrote:
> This adds probing for almost all recent (since 1999) ITE Super I/O chips
> to probe_superio. Not much of the configuration is dumped, however I did
> verify against all ITE datasheets (including those not available any
> more) that the probing was non-destructive.
> More information can be extracted easily, however this needs loads of
> datasheet surfing.
>
> Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
>
> --- util/probe_superio/probe_superio.c  (Revision 2744)
> +++ util/probe_superio/probe_superio.c  (Arbeitskopie)
> @@ -3,6 +3,7 @@
>   *
>   * Copyright (C) 2006 Ronald Minnich <rminnich at gmail.com>
>   * Copyright (C) 2006 coresystems GmbH <info at coresystems.de>
> + * Copyright (C) 2007 Carl-Daniel Hailfinger
>   *
>   * 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
> @@ -32,11 +33,16 @@
>    * if we need this.
>    */
>
> -unsigned char regval(unsigned short port, unsigned short reg) {
> +unsigned char regval(unsigned short port, unsigned char reg) {
>         outb(reg, port);
>         return inb(port+1);
>  }
>
> +void regwrite(unsigned short port, unsigned char reg, unsigned char val) {
> +       outb(reg, port);
> +       outb(val, port+1);
> +}
> +
>  void
>  dump_ns8374(unsigned short port) {
>         printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n",
> @@ -46,15 +52,13 @@
>         /* check COM1. This is all we care about at present. */
>         printf("COM 1 is Globally %s\n", regval(port,0x26)&8 ? "disabled" : "enabled");
>         /* select com1 */
> -       outb(0x7, port);
> -       outb(3, port+1);
> +       regwrite(port, 0x07, 0x03);
>         printf("COM 1 is locally %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("COM1 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
>                 regval(port, 0x74), regval(port, 0x75), regval(port, 0xf0));
>         /* select gpio */
> -       outb(0x7, port);
> -       outb(7, port+1);
> +       regwrite(port, 0x07, 0x07);
>         printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("GPIO 60=%02x, 61=%02x, 70=%02x, 71=%02x, 74=%02x, 75=%02x, f0=%02x\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70), regval(port, 0x71),
> @@ -85,38 +89,33 @@
>         printf("2b=%02x\n", regval(port, 0x2b));
>
>         /* select UART 1 */
> -       outb(0x07, port);
> -       outb(0x01, port+1);
> +       regwrite(port, 0x07, 0x01);
>         printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("UART1 base=%02x%02x, irq=%02x, mode=%s\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f,
>                 regval(port, 0xf0)&0x10 ? "RS485":"RS232");
>
>         /* select UART 2 */
> -       outb(0x07, port);
> -       outb(0x02, port+1);
> +       regwrite(port, 0x07, 0x02);
>         printf("UART2 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("UART2 base=%02x%02x, irq=%02x, mode=%s\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f,
>                 regval(port, 0xf0)&0x10 ? "RS485":"RS232");
>
>         /* select Parport */
> -       outb(0x07, port);
> -       outb(0x03, port+1);
> +       regwrite(port, 0x07, 0x03);
>         printf("PARPORT is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("PARPORT base=%02x%02x, irq=%02x\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f);
>
>         /* select hw monitor */
> -       outb(0x07, port);
> -       outb(0x04, port+1);
> +       regwrite(port, 0x07, 0x04);
>         printf("HW monitor is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("HW monitor base=%02x%02x, irq=%02x\n",
>                 regval(port, 0x60), regval(port, 0x61), regval(port, 0x70)&0x0f);
>
>         /* select gpio */
> -       outb(0x07, port);
> -       outb(0x06, port+1);
> +       regwrite(port, 0x07, 0x05);
>         printf("GPIO is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
>         printf("GPIO 70=%02x, e0=%02x, e1=%02x, e2=%02x, e3=%02x, e4=%02x, e5=%02x\n",
>                 regval(port, 0x70), regval(port, 0xe0), regval(port, 0xe1), regval(port, 0xe2),
> @@ -130,7 +129,20 @@
>
>  }
>
> +void
> +dump_ite(unsigned short port)
> +{
> +       int i;
> +       printf ("ITE chip\n");
>
> +       for (i=0x20; i<=0x2c; i++)
> +               printf("index %02x=%02x\n", i, regval(port, i));
> +
> +       /* select UART 1 */
> +       regwrite(port, 0x07, 0x01);
> +       printf("UART1 is %s\n", regval(port, 0x30) & 1 ? "enabled" : "disabled");
> +}
> +
>  void
>  probe_idregs_simple(unsigned short port){
>         unsigned char id;
> @@ -167,9 +179,10 @@
>
>  void
>  probe_idregs_fintek(unsigned short port){
> -       unsigned int vid, did;
> +       unsigned int vid, did, success;
>
>         // Enable configuration sequence (Fintek uses this for example)
> +       // Older ITE chips have the same enable sequence
>         outb(0x87, port);
>         outb(0x87, port);
>
> @@ -185,13 +198,10 @@
>         }
>         did = inb(port+1);
>
> -       outb(0x21, port);
> -       did = did|(inb(port+1)<<8);
> +       did = did|(regval(port, 0x21)<<8);
>
> -       outb(0x23, port);
> -       vid = inb(port+1);
> -       outb(0x24, port);
> -       vid = vid|(inb(port+1)<<8);
> +       vid = regval(port, 0x23);
> +       vid = vid|(regval(port, 0x24)<<8);
>
>         printf("SuperIO found at 0x%02x: vid=0x%04x/did=0x%04x\n", port, vid, did);
>
> @@ -199,23 +209,104 @@
>                 return;
>
>         // printf("%s\n", familyid[id]);
> +       switch(did) {
> +               case 0x1087: // reversed for ITE8710
> +                       success = 1;
> +                       dump_ite(port);
> +                       // disable configuration
> +                       regwrite(port, 0x02, 0x02);
> +                       break;
> +               default:
> +                       break;
> +       }
>         switch(vid) {
>                 case 0x3419:
> +                       success = 1;
>                         dump_fintek(port, did);
>                         break;
>                 default:
> -                       printf("no dump for 0x%04x/0x%04x\n", vid, did);
>                         break;
>         }
> +       if (!success)
> +               printf("no dump for vid 0x%04x, did 0x%04x\n", vid, did);
>
> -       // disable configuration
> +       // disable configuration (for Fintek, doesn't hurt ITE)
>         outb(0xaa, port);
>  }
>
>  void
> +probe_idregs_ite(unsigned short port){
> +       unsigned int id, chipver;
> +
> +       // Enable configuration sequence (ITE uses this for newer IT87[012]x)
> +       // IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
> +       // IT8761 uses 0x87, 0x61, 0x55, 0x55/0xaa
> +       // IT86xx series uses different ports
> +       // IT8661 uses 0x86, 0x61, 0x55/0xaa, 0x55/0xaa and 32 more writes
> +       // IT8673 uses 0x86, 0x80, 0x55/0xaa, 0x55/0xaa and 32 more writes
> +       outb(0x87, port);
> +       outb(0x01, port);
> +       outb(0x55, port);
> +       if (port == 0x2e)
> +               outb(0x55, port);
> +       else
> +               outb(0xAA, port);
> +
> +       outb(0x20, port);
> +       if (inb(port) != 0x20)  {
> +               if (inb(port) == 0xff )
> +                       printf ("No SuperIO chip found at 0x%04x\n", port);
> +               else
> +                       printf("probing 0x%04x, failed (0x%02x), data returns 0x%02x\n",
> +                                       port, inb(port), inb(port+1));
> +               return;
> +       }
> +
> +       // Read Chip ID Byte 1, we already issued the write to port
> +       id = inb(port+1);
> +       id <<= 8;
> +
> +       // Read Chip ID Byte 2
> +       id |= regval(port, 0x21);
> +
> +       // Read Chip Version, only bit 3..0 for all IT87xx
> +       chipver = regval(port, 0x22) & 0x0f;
> +
> +       /* ID Mapping Table
> +          unknown -> IT8711 (no datasheet)
> +          unknown -> IT8722 (no datasheet)
> +          0x8702 -> IT8702
> +          0x8705 -> IT8700 or IT8705
> +          0x8710 -> IT8710
> +          0x8712 -> IT8712
> +          0x8716 -> IT8716 or IT8726 (identical except CPU voltage control)
> +          0x8718 -> IT8718
> +       */
> +       printf("ITE? SuperIO found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
> +              port, id, chipver);
> +
> +       switch(id) {
> +               case 0x8702:
> +               case 0x8705:
> +               case 0x8710: //pointless, IT8710 has different enable sequence
> +               case 0x8712:
> +               case 0x8716:
> +               case 0x8718:
> +                       dump_ite(port);
> +                       break;
> +               default:
> +                       printf("no dump for id 0x%04x\n", id);
> +                       break;
> +       }
> +       // disable configuration
> +       regwrite(port, 0x02, 0x02);
> +}
> +
> +void
>  probe_superio(unsigned short port) {
>         probe_idregs_simple(port);
>         probe_idregs_fintek(port);
> +       probe_idregs_ite(port);
>  }
>
>  int
>
>
>
>
> --
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