diff options
Diffstat (limited to 'util/superiotool/nsc.c')
| -rw-r--r-- | util/superiotool/nsc.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/util/superiotool/nsc.c b/util/superiotool/nsc.c new file mode 100644 index 0000000000..0fb2b7463e --- /dev/null +++ b/util/superiotool/nsc.c @@ -0,0 +1,91 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2006 Ronald Minnich <rminnich@gmail.com> + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "superiotool.h" + +/* Well, they really thought this through, eh? Family is 8 bits! */ +static const char *familyid[] = { + [0xf1] = "PC8374 (Winbond/NatSemi)" +}; + +void dump_ns8374(unsigned short port) +{ + printf("Enables: 21=%02x, 22=%02x, 23=%02x, 24=%02x, 26=%02x\n", + regval(port, 0x21), regval(port, 0x22), regval(port, 0x23), + regval(port, 0x24), regval(port, 0x26)); + printf("SMBUS at %02x\n", regval(port, 0x2a)); + + /* 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. */ + 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. */ + 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), regval(port, 0x74), regval(port, 0x75), + regval(port, 0xf0)); +} + +void probe_idregs_simple(unsigned short port) +{ + unsigned char id; + + outb(0x20, port); + if (inb(port) != 0x20) { + if (inb(port) == 0xff) + printf("No Super I/O 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; + } + id = inb(port + 1); + + printf("Super I/O found at 0x%02x: id = 0x%02x\n", port, id); + if (id == 0xff) + return; + + if (familyid[id]) + printf("%s\n", familyid[id]); + else + printf("<unknown>\n"); + + switch (id) { + case 0xf1: + dump_ns8374(port); + break; + default: + printf("No dump for 0x%02x\n", id); + break; + } +} + |