diff options
Diffstat (limited to 'util/superiotool/exar.c')
| -rw-r--r-- | util/superiotool/exar.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/util/superiotool/exar.c b/util/superiotool/exar.c new file mode 100644 index 0000000000..8b3c085917 --- /dev/null +++ b/util/superiotool/exar.c @@ -0,0 +1,97 @@ +/* + * This file is part of the superiotool project. + * + * Copyright (C) 2016 Derek Waldner + * Copyright (C) 2016 Sencore Inc <opensource@sencore.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. + */ + +#include "superiotool.h" + +#define DEVICE_ID_BYTE1_REG 0x20 +#define DEVICE_ID_BYTE2_REG 0x21 + +#define VENDOR_ID_BYTE1_REG 0x23 +#define VENDOR_ID_BYTE2_REG 0x24 + +#define EXAR_VENDOR_ID 0xa813 + +static const struct superio_registers reg_table[] = { + {0x8403, "XR28V384", { + /* We assume reserved bits are read as 0. */ + {NOLDN, NULL, + {0x02,0x07,0x20,0x21,0x23,0x24,0x25,0x26,0x27,EOT}, + {0x00,0x00,0x03,0x84,0x13,0xa8,0x00,0x00,0x00,EOT}}, + {0x0, "COM1", + {0x30,0x60,0x61,0x70,0xf0,0xf1,0xf4,0xf5,0xf6,EOT}, + {0x01,0x03,0xf8,0x03,0x00,0x44,0x00,0x00,0x00,EOT}}, + {0x1, "COM2", + {0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT}, + {0x01,0x02,0xf8,0x04,0x00,0x00,0x00,0x00,EOT}}, + {0x2, "COM3", + {0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT}, + {0x01,0x03,0xe8,0x05,0x00,0x00,0x00,0x00,EOT}}, + {0x3, "COM4", + {0x30,0x60,0x61,0x70,0xf0,0xf4,0xf5,0xf6,EOT}, + {0x01,0x02,0xe8,0x09,0x00,0x00,0x00,0x00,EOT}}, + {0x8, "WDT", + {0x30,0x60,0x61,0x70,0xf0,0xf1,EOT}, + {0x01,0x04,0x42,0x00,0x02,0x0a,EOT}}, + {EOT}}}, + {EOT} +}; + +void enter_conf_mode_exar(uint16_t port) +{ + OUTB(0x67, port); + OUTB(0x67, port); +} + +void exit_conf_mode_exar(uint16_t port) +{ + OUTB(0xaa, port); +} + +void probe_idregs_exar(uint16_t port) +{ + uint16_t vid, did; + + probing_for("Exar", "", port); + + enter_conf_mode_exar(port); + + did = regval(port, DEVICE_ID_BYTE1_REG); + did |= (regval(port, DEVICE_ID_BYTE2_REG) << 8); + + vid = regval(port, VENDOR_ID_BYTE1_REG); + vid |= (regval(port, VENDOR_ID_BYTE2_REG) << 8); + + if (vid != EXAR_VENDOR_ID || superio_unknown(reg_table, did)) { + if (verbose) + printf(NOTFOUND "vid=0x%04x, id=0x%04x\n", vid, did); + exit_conf_mode_exar(port); + return; + } + + printf("Found Exar %s (vid=0x%04x, id=0x%04x) at 0x%x\n", + get_superio_name(reg_table, did), vid, did, port); + chip_found = 1; + + dump_superio("Exar", reg_table, port, did, LDN_SEL); + + exit_conf_mode_exar(port); +} + +void print_exar_chips(void) +{ + print_vendor_chips("Exar", reg_table); +} |