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lm-sensors/kernel/chips/vt1211.c
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/*
vt1211.c - Part of lm_sensors, Linux kernel modules
for hardware monitoring
Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/sysctl.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include "version.h"
#include "sensors.h"
#include "sensors_vid.h"
#include <linux/init.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18)) || \
(LINUX_VERSION_CODE == KERNEL_VERSION(2,3,0))
#define init_MUTEX(s) do { *(s) = MUTEX; } while(0)
#endif
#ifndef I2C_DRIVERID_VT1211
#define I2C_DRIVERID_VT1211 1032
#endif
#ifndef THIS_MODULE
#define THIS_MODULE NULL
#endif
static int force_addr = 0;
MODULE_PARM(force_addr, "i");
MODULE_PARM_DESC(force_addr,
"Initialize the base address of the sensors");
static unsigned short normal_i2c[] = { SENSORS_I2C_END };
static unsigned short normal_i2c_range[] = { SENSORS_I2C_END };
static unsigned int normal_isa[] = { 0x0000, SENSORS_ISA_END };
static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
SENSORS_INSMOD_1(vt1211);
/* modified from kernel/include/traps.c */
#define REG 0x2e /* The register to read/write */
#define DEV 0x07 /* Register: Logical device select */
#define VAL 0x2f /* The value to read/write */
#define PME 0x0b /* The device with the hardware monitor */
#define DEVID 0x20 /* Register: Device ID */
static inline void
superio_outb(int reg, int val)
{
outb(reg, REG);
outb(val, VAL);
}
static inline int
superio_inb(int reg)
{
outb(reg, REG);
return inb(VAL);
}
static inline void
superio_select()
{
outb(DEV, REG);
outb(PME, VAL);
}
static inline void
superio_enter()
{
outb(0x87, REG);
outb(0x87, REG);
}
static inline void
superio_exit()
{
outb(0xAA, REG);
}
#define VT1211_DEVID 0x3c
#define VT1211_ACT_REG 0x30
#define VT1211_BASE_REG 0x60
#define VT1211_EXTENT 0x80
/* pwm numbered 1-2 */
#define VT1211_REG_PWM(nr) (0x5f + (nr))
/* The VT1211 registers */
/* We define the sensors as follows. Somewhat convoluted to minimize
changes from via686a.
Sensor Voltage Mode Temp Mode
-------- ------------ ---------
Reading 1 temp3
Reading 3 temp1
UCH1/Reading2 in0 temp2
UCH2 in1 temp4
UCH3 in2 temp5
UCH4 in3 temp6
UCH5 in4 temp7
3.3V in5
-12V in6
*/
/* ins numbered 0-6 */
#define VT1211_REG_IN_MAX(nr) ((nr)==0 ? 0x3d : 0x2b + (((nr)+1) * 2))
#define VT1211_REG_IN_MIN(nr) ((nr)==0 ? 0x3e : 0x2c + (((nr)+1) * 2))
#define VT1211_REG_IN(nr) (0x21 + (nr))
/* fans numbered 1-2 */
#define VT1211_REG_FAN_MIN(nr) (0x3a + (nr))
#define VT1211_REG_FAN(nr) (0x28 + (nr))
static const u8 regtemp[] = { 0x20, 0x21, 0x1f, 0x22, 0x23, 0x24, 0x25 };
static const u8 regover[] = { 0x39, 0x3d, 0x1d, 0x2b, 0x2d, 0x2f, 0x31 };
static const u8 reghyst[] = { 0x3a, 0x3e, 0x1e, 0x2c, 0x2e, 0x30, 0x32 };
/* temps numbered 1-7 */
#define VT1211_REG_TEMP(nr) (regtemp[(nr) - 1])
#define VT1211_REG_TEMP_OVER(nr) (regover[(nr) - 1])
#define VT1211_REG_TEMP_HYST(nr) (reghyst[(nr) - 1])
#define VT1211_REG_TEMP_LOW3 0x4b /* bits 7-6 */
#define VT1211_REG_TEMP_LOW2 0x49 /* bits 5-4 */
#define VT1211_REG_TEMP_LOW47 0x4d
#define VT1211_REG_CONFIG 0x40
#define VT1211_REG_ALARM1 0x41
#define VT1211_REG_ALARM2 0x42
#define VT1211_REG_VID 0x45
#define VT1211_REG_FANDIV 0x47
#define VT1211_REG_UCH_CONFIG 0x4a
#define VT1211_REG_TEMP1_CONFIG 0x4b
#define VT1211_REG_TEMP1_CONFIG 0x4c
/* temps 1-7; voltages 0-6 */
#define ISTEMP(i, ch_config) ((i) == 1 ? 1 : \
(i) == 3 ? 1 : \
(i) == 2 ? (ch_config) & 0x01 : \
((ch_config) >> ((i)-1)) & 0x01)
#define ISVOLT(i, ch_config) ((i) > 4 ? 1 : !(((ch_config) >> ((i)+2)) & 0x01))
#define DIV_FROM_REG(val) (1 << (val))
#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
#define PWM_FROM_REG(val) (((val) * 1005) / 2550)
#define PWM_TO_REG(val) SENSORS_LIMIT((((val) * 2555) / 1000), 0, 255)
/* Conversions. Rounding and limit checking is only done on the TO_REG
variants. */
/********* VOLTAGE CONVERSIONS (Bob Dougherty) ********/
// From HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew):
// voltagefactor[0]=1.25/2628; (2628/1.25=2102.4) // Vccp
// voltagefactor[1]=1.25/2628; (2628/1.25=2102.4) // +2.5V
// voltagefactor[2]=1.67/2628; (2628/1.67=1573.7) // +3.3V
// voltagefactor[3]=2.6/2628; (2628/2.60=1010.8) // +5V
// voltagefactor[4]=6.3/2628; (2628/6.30=417.14) // +12V
// in[i]=(data[i+2]*25.0+133)*voltagefactor[i];
// That is:
// volts = (25*regVal+133)*factor
// regVal = (volts/factor-133)/25
// (These conversions were contributed by Jonathan Teh Soon Yew
// <j.teh@iname.com>)
//
// These get us close, but they don't completely agree with what my BIOS
// says- they are all a bit low. But, it all we have to go on...
extern inline u8 IN_TO_REG(long val, int inNum)
{
// to avoid floating point, we multiply everything by 100.
// val is guaranteed to be positive, so we can achieve the effect of
// rounding by (...*10+5)/10. Note that the *10 is hidden in the
// /250 (which should really be /2500).
// At the end, we need to /100 because we *100 everything and we need
// to /10 because of the rounding thing, so we /1000.
if (inNum <= 1)
return (u8)
SENSORS_LIMIT(((val * 210240 - 13300) / 250 + 5) / 1000,
0, 255);
else if (inNum == 2)
return (u8)
SENSORS_LIMIT(((val * 157370 - 13300) / 250 + 5) / 1000,
0, 255);
else if (inNum == 3)
return (u8)
SENSORS_LIMIT(((val * 101080 - 13300) / 250 + 5) / 1000,
0, 255);
else
return (u8) SENSORS_LIMIT(((val * 41714 - 13300) / 250 + 5)
/ 1000, 0, 255);
}
extern inline long IN_FROM_REG(u8 val, int inNum)
{
// to avoid floating point, we multiply everything by 100.
// val is guaranteed to be positive, so we can achieve the effect of
// rounding by adding 0.5. Or, to avoid fp math, we do (...*10+5)/10.
// We need to scale with *100 anyway, so no need to /100 at the end.
if (inNum <= 1)
return (long) (((250000 * val + 13300) / 210240 * 10 + 5) /10);
else if (inNum == 2)
return (long) (((250000 * val + 13300) / 157370 * 10 + 5) /10);
else if (inNum == 3)
return (long) (((250000 * val + 13300) / 101080 * 10 + 5) /10);
else
return (long) (((250000 * val + 13300) / 41714 * 10 + 5) /10);
}
/********* FAN RPM CONVERSIONS ********/
/* But this chip saturates back at 0, not at 255 like all the other chips.
So, 0 means 0 RPM */
extern inline u8 FAN_TO_REG(long rpm, int div)
{
if (rpm == 0)
return 0;
rpm = SENSORS_LIMIT(rpm, 1, 1000000);
return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 255);
}
#define MIN_TO_REG(a,b) FAN_TO_REG(a,b)
#define FAN_FROM_REG(val,div) ((val)==0?0:(val)==255?0:1350000/((val)*(div)))
/******** TEMP CONVERSIONS (Bob Dougherty) *********/
// linear fits from HWMon.cpp (Copyright 1998-2000 Jonathan Teh Soon Yew)
// if(temp<169)
// return double(temp)*0.427-32.08;
// else if(temp>=169 && temp<=202)
// return double(temp)*0.582-58.16;
// else
// return double(temp)*0.924-127.33;
//
// A fifth-order polynomial fits the unofficial data (provided by Alex van
// Kaam <darkside@chello.nl>) a bit better. It also give more reasonable
// numbers on my machine (ie. they agree with what my BIOS tells me).
// Here's the fifth-order fit to the 8-bit data:
// temp = 1.625093e-10*val^5 - 1.001632e-07*val^4 + 2.457653e-05*val^3 -
// 2.967619e-03*val^2 + 2.175144e-01*val - 7.090067e+0.
//
// (2000-10-25- RFD: thanks to Uwe Andersen <uandersen@mayah.com> for
// finding my typos in this formula!)
//
// Alas, none of the elegant function-fit solutions will work because we
// aren't allowed to use floating point in the kernel and doing it with
// integers doesn't rpovide enough precision. So we'll do boring old
// look-up table stuff. The unofficial data (see below) have effectively
// 7-bit resolution (they are rounded to the nearest degree). I'm assuming
// that the transfer function of the device is monotonic and smooth, so a
// smooth function fit to the data will allow us to get better precision.
// I used the 5th-order poly fit described above and solved for
// VIA register values 0-255. I *10 before rounding, so we get tenth-degree
// precision. (I could have done all 1024 values for our 10-bit readings,
// but the function is very linear in the useful range (0-80 deg C), so
// we'll just use linear interpolation for 10-bit readings.) So, tempLUT
// is the temp at via register values 0-255:
static const long tempLUT[] =
{ -709, -688, -667, -646, -627, -607, -589, -570, -553, -536, -519,
-503, -487, -471, -456, -442, -428, -414, -400, -387, -375,
-362, -350, -339, -327, -316, -305, -295, -285, -275, -265,
-255, -246, -237, -229, -220, -212, -204, -196, -188, -180,
-173, -166, -159, -152, -145, -139, -132, -126, -120, -114,
-108, -102, -96, -91, -85, -80, -74, -69, -64, -59, -54, -49,
-44, -39, -34, -29, -25, -20, -15, -11, -6, -2, 3, 7, 12, 16,
20, 25, 29, 33, 37, 42, 46, 50, 54, 59, 63, 67, 71, 75, 79, 84,
88, 92, 96, 100, 104, 109, 113, 117, 121, 125, 130, 134, 138,
142, 146, 151, 155, 159, 163, 168, 172, 176, 181, 185, 189,
193, 198, 202, 206, 211, 215, 219, 224, 228, 232, 237, 241,
245, 250, 254, 259, 263, 267, 272, 276, 281, 285, 290, 294,
299, 303, 307, 312, 316, 321, 325, 330, 334, 339, 344, 348,
353, 357, 362, 366, 371, 376, 380, 385, 390, 395, 399, 404,
409, 414, 419, 423, 428, 433, 438, 443, 449, 454, 459, 464,
469, 475, 480, 486, 491, 497, 502, 508, 514, 520, 526, 532,
538, 544, 551, 557, 564, 571, 578, 584, 592, 599, 606, 614,
621, 629, 637, 645, 654, 662, 671, 680, 689, 698, 708, 718,
728, 738, 749, 759, 770, 782, 793, 805, 818, 830, 843, 856,
870, 883, 898, 912, 927, 943, 958, 975, 991, 1008, 1026, 1044,
1062, 1081, 1101, 1121, 1141, 1162, 1184, 1206, 1229, 1252,
1276, 1301, 1326, 1352, 1378, 1406, 1434, 1462
};
/* the original LUT values from Alex van Kaam <darkside@chello.nl>
(for via register values 12-240):
{-50,-49,-47,-45,-43,-41,-39,-38,-37,-35,-34,-33,-32,-31,
-30,-29,-28,-27,-26,-25,-24,-24,-23,-22,-21,-20,-20,-19,-18,-17,-17,-16,-15,
-15,-14,-14,-13,-12,-12,-11,-11,-10,-9,-9,-8,-8,-7,-7,-6,-6,-5,-5,-4,-4,-3,
-3,-2,-2,-1,-1,0,0,1,1,1,3,3,3,4,4,4,5,5,5,6,6,7,7,8,8,9,9,9,10,10,11,11,12,
12,12,13,13,13,14,14,15,15,16,16,16,17,17,18,18,19,19,20,20,21,21,21,22,22,
22,23,23,24,24,25,25,26,26,26,27,27,27,28,28,29,29,30,30,30,31,31,32,32,33,
33,34,34,35,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,43,43,44,44,45,
45,46,46,47,48,48,49,49,50,51,51,52,52,53,53,54,55,55,56,57,57,58,59,59,60,
61,62,62,63,64,65,66,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,83,84,
85,86,88,89,91,92,94,96,97,99,101,103,105,107,109,110};
*/
// Here's the reverse LUT. I got it by doing a 6-th order poly fit (needed
// an extra term for a good fit to these inverse data!) and then
// solving for each temp value from -50 to 110 (the useable range for
// this chip). Here's the fit:
// viaRegVal = -1.160370e-10*val^6 +3.193693e-08*val^5 - 1.464447e-06*val^4
// - 2.525453e-04*val^3 + 1.424593e-02*val^2 + 2.148941e+00*val +7.275808e+01)
// Note that n=161:
static const u8 viaLUT[] =
{ 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 22, 23,
23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 39, 40,
41, 43, 45, 46, 48, 49, 51, 53, 55, 57, 59, 60, 62, 64, 66,
69, 71, 73, 75, 77, 79, 82, 84, 86, 88, 91, 93, 95, 98, 100,
103, 105, 107, 110, 112, 115, 117, 119, 122, 124, 126, 129,
131, 134, 136, 138, 140, 143, 145, 147, 150, 152, 154, 156,
158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180,
182, 183, 185, 187, 188, 190, 192, 193, 195, 196, 198, 199,
200, 202, 203, 205, 206, 207, 208, 209, 210, 211, 212, 213,
214, 215, 216, 217, 218, 219, 220, 221, 222, 222, 223, 224,
225, 226, 226, 227, 228, 228, 229, 230, 230, 231, 232, 232,
233, 233, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
239, 240
};
/* Converting temps to (8-bit) hyst and over registers */
// No interpolation here. Just check the limits and go.
// The +5 effectively rounds off properly and the +50 is because
// the temps start at -50
extern inline u8 TEMP_TO_REG(long val)
{
return (u8)
SENSORS_LIMIT(viaLUT[((val <= -500) ? 0 : (val >= 1100) ? 160 :
((val + 5) / 10 + 50))], 0, 255);
}
/* for 8-bit temperature hyst and over registers */
// The temp values are already *10, so we don't need to do that.
// But we _will_ round these off to the nearest degree with (...*10+5)/10
#define TEMP_FROM_REG(val) ((tempLUT[(val)]*10+5)/10)
/* for 10-bit temperature readings */
// You might _think_ this is too long to inline, but's it's really only
// called once...
extern inline long TEMP_FROM_REG10(u16 val)
{
// the temp values are already *10, so we don't need to do that.
long temp;
u16 eightBits = val >> 2;
u16 twoBits = val & 3;
// handle the extremes first (they won't interpolate well! ;-)
if (val == 0)
return (long) tempLUT[0];
if (val == 1023)
return (long) tempLUT[255];
if (twoBits == 0)
return (long) tempLUT[eightBits];
else {
// do some interpolation by multipying the lower and upper
// bounds by 25, 50 or 75, then /100.
temp = ((25 * (4 - twoBits)) * tempLUT[eightBits]
+ (25 * twoBits) * tempLUT[eightBits + 1]);
// increase the magnitude by 50 to achieve rounding.
if (temp > 0)
temp += 50;
else
temp -= 50;
return (temp / 100);
}
}
#define VT1211_INIT_FAN_MIN_1 3000
#define VT1211_INIT_FAN_MIN_2 3000
#ifdef MODULE
extern int init_module(void);
extern int cleanup_module(void);
#endif /* MODULE */
struct vt1211_data {
struct semaphore lock;
int sysctl_id;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
u8 in[7]; /* Register value */
u8 in_max[7]; /* Register value */
u8 in_min[7]; /* Register value */
u16 temp[7]; /* Register value 10 bit */
u8 temp_over[7]; /* Register value */
u8 temp_hyst[7]; /* Register value */
u8 fan[2]; /* Register value */
u8 fan_min[2]; /* Register value */
u8 fan_div[2]; /* Register encoding, shifted right */
u16 alarms; /* Register encoding */
u8 pwm[2]; /* Register value */
u8 vid; /* Register encoding */
u8 vrm;
u8 uch_config;
};
#ifdef MODULE
static
#else
extern
#endif
int __init sensors_vt1211_init(void);
static int __init vt1211_cleanup(void);
static int vt1211_attach_adapter(struct i2c_adapter *adapter);
static int vt1211_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind);
static int vt1211_detach_client(struct i2c_client *client);
static int vt1211_command(struct i2c_client *client, unsigned int cmd,
void *arg);
static void vt1211_inc_use(struct i2c_client *client);
static void vt1211_dec_use(struct i2c_client *client);
static inline int vt_rdval(struct i2c_client *client, u8 register);
static inline void vt1211_write_value(struct i2c_client *client, u8 register,
u8 value);
static void vt1211_update_client(struct i2c_client *client);
static void vt1211_init_client(struct i2c_client *client);
static int vt1211_find(int *address);
static void vt1211_fan(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_alarms(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_in(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_pwm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_vid(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_vrm(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_uch(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static void vt1211_temp(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results);
static int vt1211_id = 0;
static struct i2c_driver vt1211_driver = {
/* name */ "SiS 5595",
/* id */ I2C_DRIVERID_VT1211,
/* flags */ I2C_DF_NOTIFY,
/* attach_adapter */ &vt1211_attach_adapter,
/* detach_client */ &vt1211_detach_client,
/* command */ &vt1211_command,
/* inc_use */ &vt1211_inc_use,
/* dec_use */ &vt1211_dec_use
};
static int __initdata vt1211_initialized = 0;
static ctl_table vt1211_dir_table_template[] = {
{VT1211_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_in},
{VT1211_SYSCTL_TEMP, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP4, "temp4", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP5, "temp5", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP6, "temp6", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_TEMP7, "temp7", NULL, 0, 0644, NULL,
&i2c_proc_real, &i2c_sysctl_real, NULL, &vt1211_temp},
{VT1211_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_fan},
{VT1211_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_fan},
{VT1211_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_fan_div},
{VT1211_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_alarms},
{VT1211_SYSCTL_PWM1, "pwm1", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_pwm},
{VT1211_SYSCTL_PWM2, "pwm2", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_pwm},
{VT1211_SYSCTL_VID, "vid", NULL, 0, 0444, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_vid},
{VT1211_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_vrm},
{VT1211_SYSCTL_UCH, "uch_config", NULL, 0, 0644, NULL, &i2c_proc_real,
&i2c_sysctl_real, NULL, &vt1211_uch},
{0}
};
int vt1211_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_detect(adapter, &addr_data, vt1211_detect);
}
int vt1211_find(int *address)
{
u16 val;
superio_enter();
val= superio_inb(DEVID);
if(VT1211_DEVID != val) {
superio_exit();
return -ENODEV;
}
superio_select();
val = (superio_inb(VT1211_BASE_REG) << 8) |
superio_inb(VT1211_BASE_REG + 1);
*address = val & ~(VT1211_EXTENT - 1);
if (*address == 0 && force_addr == 0) {
printk("vt1211.o: base address not set - use force_addr=0xaddr\n");
superio_exit();
return -ENODEV;
}
if (force_addr)
*address = force_addr; /* so detect will get called */
superio_exit();
return 0;
}
int vt1211_detect(struct i2c_adapter *adapter, int address,
unsigned short flags, int kind)
{
int i;
struct i2c_client *new_client;
struct vt1211_data *data;
int err = 0;
u8 val;
const char *type_name = "vt1211";
const char *client_name = "VT1211 chip";
if (!i2c_is_isa_adapter(adapter)) {
return 0;
}
if(force_addr)
address = force_addr & ~(VT1211_EXTENT - 1);
if (check_region(address, VT1211_EXTENT)) {
printk("vt1211.o: region 0x%x already in use!\n", address);
return -ENODEV;
}
if(force_addr) {
printk("vt1211.o: forcing ISA address 0x%04X\n", address);
superio_enter();
superio_select();
superio_outb(VT1211_BASE_REG, address >> 8);
superio_outb(VT1211_BASE_REG+1, address & 0xff);
superio_exit();
}
superio_enter();
superio_select();
if((val = 0x01 & superio_inb(VT1211_ACT_REG)) == 0)
superio_outb(VT1211_ACT_REG, 1);
superio_exit();
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct vt1211_data),
GFP_KERNEL))) {
return -ENOMEM;
}
data = (struct vt1211_data *) (new_client + 1);
new_client->addr = address;
init_MUTEX(&data->lock);
new_client->data = data;
new_client->adapter = adapter;
new_client->driver = &vt1211_driver;
new_client->flags = 0;
request_region(address, VT1211_EXTENT, "vt1211-sensors");
strcpy(new_client->name, client_name);
new_client->id = vt1211_id++;
data->valid = 0;
init_MUTEX(&data->update_lock);
if ((err = i2c_attach_client(new_client)))
goto ERROR3;
if ((i = i2c_register_entry((struct i2c_client *) new_client,
type_name,
vt1211_dir_table_template,
THIS_MODULE)) < 0) {
err = i;
goto ERROR4;
}
data->sysctl_id = i;
vt1211_init_client(new_client);
return 0;
ERROR4:
i2c_detach_client(new_client);
ERROR3:
release_region(address, VT1211_EXTENT);
kfree(new_client);
return err;
}
int vt1211_detach_client(struct i2c_client *client)
{
int err;
i2c_deregister_entry(((struct vt1211_data *) (client->data))->
sysctl_id);
if ((err = i2c_detach_client(client))) {
printk
("vt1211.o: Client deregistration failed, client not detached.\n");
return err;
}
release_region(client->addr, VT1211_EXTENT);
kfree(client);
return 0;
}
int vt1211_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
return 0;
}
void vt1211_inc_use(struct i2c_client *client)
{
#ifdef MODULE
MOD_INC_USE_COUNT;
#endif
}
void vt1211_dec_use(struct i2c_client *client)
{
#ifdef MODULE
MOD_DEC_USE_COUNT;
#endif
}
static inline int vt_rdval(struct i2c_client *client, u8 reg)
{
return (inb_p(client->addr + reg));
}
static inline void vt1211_write_value(struct i2c_client *client, u8 reg, u8 value)
{
outb_p(value, client->addr + reg);
}
void vt1211_init_client(struct i2c_client *client)
{
struct vt1211_data *data = client->data;
data->vrm = DEFAULT_VRM;
}
void vt1211_update_client(struct i2c_client *client)
{
struct vt1211_data *data = client->data;
int i, j;
down(&data->update_lock);
if ((jiffies - data->last_updated > HZ + HZ / 2) ||
(jiffies < data->last_updated) || !data->valid) {
data->uch_config = vt_rdval(client, VT1211_REG_UCH_CONFIG);
for (i = 0; i <= 6; i++) {
if(ISVOLT(i, data->uch_config)) {
data->in[i] = vt_rdval(client, VT1211_REG_IN(i));
data->in_min[i] = vt_rdval(client,
VT1211_REG_IN_MIN(i));
data->in_max[i] = vt_rdval(client,
VT1211_REG_IN_MAX(i));
} else {
data->in[i] = 0;
data->in_min[i] = 0;
data->in_max[i] = 0;
}
}
for (i = 1; i <= 2; i++) {
data->fan[i - 1] = vt_rdval(client, VT1211_REG_FAN(i));
data->fan_min[i - 1] = vt_rdval(client,
VT1211_REG_FAN_MIN(i));
}
for (i = 1; i <= 7; i++) {
if(ISTEMP(i, data->uch_config)) {
data->temp[i - 1] = vt_rdval(client,
VT1211_REG_TEMP(i)) << 2;
switch(i) {
case 1:
/* ? */
j = 0;
break;
case 2:
j = (vt_rdval(client,
VT1211_REG_TEMP_LOW2) &
0x30) >> 4;
break;
case 3:
j = (vt_rdval(client,
VT1211_REG_TEMP_LOW3) &
0xc0) >> 6;
break;
case 4:
case 5:
case 6:
case 7:
default:
j = (vt_rdval(client,
VT1211_REG_TEMP_LOW47) >>
((i-4)*2)) & 0x03;
break;
}
data->temp[i - 1] |= j;
data->temp_over[i - 1] = vt_rdval(client,
VT1211_REG_TEMP_OVER(i));
data->temp_hyst[i - 1] = vt_rdval(client,
VT1211_REG_TEMP_HYST(i));
} else {
data->temp[i - 1] = 0;
data->temp_over[i - 1] = 0;
data->temp_hyst[i - 1] = 0;
}
}
for (i = 1; i <= 2; i++) {
data->fan[i - 1] = vt_rdval(client, VT1211_REG_FAN(i));
data->fan_min[i - 1] = vt_rdval(client,
VT1211_REG_FAN_MIN(i));
data->pwm[i - 1] = vt_rdval(client, VT1211_REG_PWM(i));
}
i = vt_rdval(client, VT1211_REG_FANDIV);
data->fan_div[0] = (i >> 4) & 0x03;
data->fan_div[1] = i >> 6;
data->alarms = vt_rdval(client, VT1211_REG_ALARM1) |
(vt_rdval(client, VT1211_REG_ALARM2) << 8);
data->uch_config= vt_rdval(client, VT1211_REG_UCH_CONFIG);
data->vid= vt_rdval(client, VT1211_REG_VID) & 0x1f;
data->last_updated = jiffies;
data->valid = 1;
}
up(&data->update_lock);
}
void vt1211_in(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
int nr = ctl_name - VT1211_SYSCTL_IN0;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 2;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = IN_FROM_REG(data->in_min[nr], nr);
results[1] = IN_FROM_REG(data->in_max[nr], nr);
results[2] = IN_FROM_REG(data->in[nr], nr);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->in_min[nr] = IN_TO_REG(results[0], nr);
vt1211_write_value(client, VT1211_REG_IN_MIN(nr),
data->in_min[nr]);
}
if (*nrels_mag >= 2) {
data->in_max[nr] = IN_TO_REG(results[1], nr);
vt1211_write_value(client, VT1211_REG_IN_MAX(nr),
data->in_max[nr]);
}
}
}
void vt1211_fan(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
int nr = ctl_name - VT1211_SYSCTL_FAN1 + 1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = FAN_FROM_REG(data->fan_min[nr - 1],
DIV_FROM_REG(data->fan_div
[nr - 1]));
results[1] = FAN_FROM_REG(data->fan[nr - 1],
DIV_FROM_REG(data->fan_div[nr - 1]));
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->fan_min[nr - 1] = MIN_TO_REG(results[0],
DIV_FROM_REG
(data->
fan_div[nr-1]));
vt1211_write_value(client, VT1211_REG_FAN_MIN(nr),
data->fan_min[nr - 1]);
}
}
}
void vt1211_temp(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
int nr = ctl_name - VT1211_SYSCTL_TEMP;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = TEMP_FROM_REG(data->temp_over[nr]);
results[1] = TEMP_FROM_REG(data->temp_hyst[nr]);
results[2] = TEMP_FROM_REG10(data->temp[nr]);
*nrels_mag = 3;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->temp_over[nr] = TEMP_TO_REG(results[0]);
vt1211_write_value(client,
VT1211_REG_TEMP_OVER(nr + 1),
data->temp_over[nr]);
}
if (*nrels_mag >= 2) {
data->temp_hyst[nr] = TEMP_TO_REG(results[1]);
vt1211_write_value(client,
VT1211_REG_TEMP_HYST(nr + 1),
data->temp_hyst[nr]);
}
}
}
void vt1211_alarms(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = data->alarms;
*nrels_mag = 1;
}
}
void vt1211_fan_div(struct i2c_client *client, int operation,
int ctl_name, int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
int old;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = DIV_FROM_REG(data->fan_div[0]);
results[1] = DIV_FROM_REG(data->fan_div[1]);
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
old = vt_rdval(client, VT1211_REG_FANDIV);
if (*nrels_mag >= 2) {
data->fan_div[1] = DIV_TO_REG(results[1]);
old = (old & 0x3f) | (data->fan_div[1] << 6);
}
if (*nrels_mag >= 1) {
data->fan_div[0] = DIV_TO_REG(results[0]);
old = (old & 0xcf) | (data->fan_div[0] << 4);
vt1211_write_value(client, VT1211_REG_FANDIV, old);
}
}
}
void vt1211_pwm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
int nr = 1 + ctl_name - VT1211_SYSCTL_PWM1;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 0;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = PWM_FROM_REG(data->pwm[nr - 1]);
results[1] = 1; /* always enabled */
*nrels_mag = 2;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1) {
data->pwm[nr - 1] = PWM_TO_REG(results[0]);
if (*nrels_mag >= 2) {
/* ignore enable for now */
}
vt1211_write_value(client, VT1211_REG_PWM(nr),
data->pwm[nr - 1]);
}
}
}
void vt1211_vid(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 3;
else if (operation == SENSORS_PROC_REAL_READ) {
vt1211_update_client(client);
results[0] = vid_from_reg(data->vid, data->vrm);
*nrels_mag = 1;
}
}
void vt1211_vrm(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
results[0] = data->vrm;
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1)
data->vrm = results[0];
}
}
void vt1211_uch(struct i2c_client *client, int operation, int ctl_name,
int *nrels_mag, long *results)
{
struct vt1211_data *data = client->data;
if (operation == SENSORS_PROC_REAL_INFO)
*nrels_mag = 1;
else if (operation == SENSORS_PROC_REAL_READ) {
results[0] = data->uch_config;
*nrels_mag = 1;
} else if (operation == SENSORS_PROC_REAL_WRITE) {
if (*nrels_mag >= 1)
data->vrm = results[0];
}
}
int __init sensors_vt1211_init(void)
{
int res, addr;
printk("vt1211.o version %s (%s)\n", LM_VERSION, LM_DATE);
vt1211_initialized = 0;
if (vt1211_find(&addr)) {
printk("vt1211.o: VT1211 not detected, module not inserted.\n");
return -ENODEV;
}
normal_isa[0] = addr;
if ((res = i2c_add_driver(&vt1211_driver))) {
printk
("vt1211.o: Driver registration failed, module not inserted.\n");
vt1211_cleanup();
return res;
}
vt1211_initialized++;
return 0;
}
int __init vt1211_cleanup(void)
{
int res;
if (vt1211_initialized >= 1) {
if ((res = i2c_del_driver(&vt1211_driver))) {
printk
("vt1211.o: Driver deregistration failed, module not removed.\n");
return res;
}
vt1211_initialized--;
}
return 0;
}
EXPORT_NO_SYMBOLS;
#ifdef MODULE
MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
MODULE_DESCRIPTION("VT1211 sensors");
#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL");
#endif
int init_module(void)
{
return sensors_vt1211_init();
}
int cleanup_module(void)
{
return vt1211_cleanup();
}
#endif /* MODULE */
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