diff options
Diffstat (limited to 'util/superiotool/smsc.c')
| -rw-r--r-- | util/superiotool/smsc.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/util/superiotool/smsc.c b/util/superiotool/smsc.c new file mode 100644 index 0000000000..805756f7cd --- /dev/null +++ b/util/superiotool/smsc.c @@ -0,0 +1,89 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de> + * + * 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" + +#define DEVICE_ID_REG 0x0d +#define DEVICE_REV_REG 0x0e + +const static struct superio_registers reg_table[] = { + {0x28, "FDC37N769", { + {NOLDN, + {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, + 0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13, + 0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d, + 0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27, + 0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,EOT}, + {0x28,0x9c,0x88,0x70,0x00,0x00,0xff,0x00,0x00,0x00, + 0x00,0x00,0x02,0x28,NANA,0x00,0x00,0x80,RSVD,RSVD, + NANA,NANA,NANA,0x03,RSVD,RSVD,RSVD,RSVD,RSVD,RSVD, + 0x80,0x00,0x3c,RSVD,RSVD,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,RSVD,0x00,0x00,0x03,0x00,0x00,EOT}}, + {EOT}}}, + {EOT} +}; + +/* Note: The actual SMSC ID is 16 bits, but we must pass 32 bits here. */ +void dump_smsc(uint32_t port, uint32_t id) +{ + switch (id) { + case 0x28: + dump_superio("SMSC", reg_table, port, id); + break; + default: + printf("Unknown SMSC chip, id=0x%02x\n", id); + break; + } +} + +void probe_idregs_smsc(uint32_t port) +{ + uint16_t id, rev; + + outb(0x55, port); /* Enter configuration mode. */ + + /* Read device ID. */ + id = regval(port, DEVICE_ID_REG); + if (id != 0x28) { /* TODO: Support for other SMSC chips. */ + 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; + } + + /* Read chip revision. */ + rev = regval(port, DEVICE_REV_REG); + + printf("Super I/O found at 0x%04x: id=0x%02x, rev=0x%02x\n", + port, id, rev); + + switch (id) { + case 0x28: + dump_smsc(port, id); + break; + default: + printf("No dump for ID 0x%04x\n", id); + break; + } + + outb(0xaa, port); /* Exit configuration mode. */ +} + |