2 i2c-sensor-vid.c - Part of lm_sensors, Linux kernel modules for hardware
5 Copyright (c) 2004 Rudolf Marek <r.marek@sh.cvut.cz>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/config.h>
23 #include <linux/module.h>
24 #include <linux/kernel.h>
37 static struct vrm_model vrm_models[] = {
38 {X86_VENDOR_AMD, 0x6, ANY, 90}, /* Athlon Duron etc */
39 {X86_VENDOR_AMD, 0xF, ANY, 24}, /* Athlon 64, Opteron */
40 {X86_VENDOR_INTEL, 0x6, 0x9, 85}, /* 0.13um too */
41 {X86_VENDOR_INTEL, 0x6, 0xB, 85}, /* 0xB Tualatin */
42 {X86_VENDOR_INTEL, 0x6, ANY, 82}, /* any P6 */
43 {X86_VENDOR_INTEL, 0x7, ANY, 0}, /* Itanium */
44 {X86_VENDOR_INTEL, 0xF, 0x3, 100}, /* P4 Prescott */
45 {X86_VENDOR_INTEL, 0xF, ANY, 90}, /* P4 before Prescott */
46 {X86_VENDOR_INTEL, 0x10,ANY, 0}, /* Itanium 2 */
47 {X86_VENDOR_UNKNOWN, ANY, ANY, 0} /* stop here */
50 static int find_vrm(u8 eff_family, u8 eff_model, u8 vendor)
54 while (vrm_models[i].vendor!=X86_VENDOR_UNKNOWN) {
55 if (vrm_models[i].vendor==vendor)
56 if ((vrm_models[i].eff_family==eff_family)&& \
57 ((vrm_models[i].eff_model==eff_model)|| \
58 (vrm_models[i].eff_model==ANY)))
59 return vrm_models[i].vrm_type;
66 int i2c_which_vrm(void)
68 struct cpuinfo_x86 *c = cpu_data;
70 u8 eff_family, eff_model;
73 if (c->x86 < 6) return 0; /* any CPU with familly lower than 6
74 dont have VID and/or CPUID */
76 eff_family = ((eax & 0x00000F00)>>8);
77 eff_model = ((eax & 0x000000F0)>>4);
78 if (eff_family == 0xF) { /* use extended model & family */
79 eff_family += ((eax & 0x00F00000)>>20);
80 eff_model += ((eax & 0x000F0000)>>16)<<4;
82 vrm_ret = find_vrm(eff_family,eff_model,c->x86_vendor);
84 printk(KERN_INFO "i2c-sensor.o: Unknown VRM version of your"
89 /* and now for something completely different for Non-x86 world*/
91 int i2c_which_vrm(void)
93 printk(KERN_INFO "i2c-sensor.o: Unknown VRM version of your CPU\n");
98 EXPORT_SYMBOL(i2c_which_vrm);