/* vt1211.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 2002 Mark D. Studebaker 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 #include #include #include #include #include #include #include #include #include #include "version.h" #include "sensors.h" #include "sensors_vid.h" #include #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 // ) // // 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 ) 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 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 (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 "); 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 */