/* adm1026.c - Part of lm_sensors, Linux kernel modules for hardware monitoring Copyright (c) 2002, 2003 Philip Pokorny 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. CHANGELOG 2003-03-13 Initial development 2003-05-07 First Release. Includes GPIO fixup and full functionality. 2003-05-18 Minor fixups and tweaks. Print GPIO config after fixup. Adjust fan MIN if DIV changes. 2003-05-21 Fix printing of FAN/GPIO config Fix silly bug in fan_div logic Fix fan_min handling so that 0xff is 0 is 0xff 2003-05-25 Fix more silly typos... 2003-06-11 Change FAN_xx_REG macros to use different scaling Most (all?) drivers assume two pulses per rev fans and the old scaling was producing double the RPM's Thanks to Jerome Hsiao @ Arima for pointing this out. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "version.h" #include "sensors_vid.h" #ifndef I2C_DRIVERID_ADM1026 /* i2c-id.h hasn't been updated to assign us an ID. * So... Use a local ID from 0xf000 to 0xffff as * documented in i2c-id.h */ #define I2C_DRIVERID_ADM1026 (0xf126) #endif /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, SENSORS_I2C_END }; static unsigned short normal_i2c_range[] = { SENSORS_I2C_END }; static unsigned int normal_isa[] = { SENSORS_ISA_END }; static unsigned int normal_isa_range[] = { SENSORS_ISA_END }; /* Insmod parameters */ SENSORS_INSMOD_1(adm1026); static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; MODULE_PARM(gpio_input,"1-17i"); MODULE_PARM_DESC(gpio_input,"List of GPIO pins (0-16) to program as inputs"); MODULE_PARM(gpio_output,"1-17i"); MODULE_PARM_DESC(gpio_output,"List of GPIO pins (0-16) to program as outputs"); MODULE_PARM(gpio_inverted,"1-17i"); MODULE_PARM_DESC(gpio_inverted,"List of GPIO pins (0-16) to program as inverted"); MODULE_PARM(gpio_normal,"1-17i"); MODULE_PARM_DESC(gpio_normal,"List of GPIO pins (0-16) to program as normal/non-inverted"); MODULE_PARM(gpio_fan,"1-8i"); MODULE_PARM_DESC(gpio_fan,"List of GPIO pins (0-7) to program as fan tachs"); /* Many ADM1026 constants specified below */ /* The ADM1026 registers */ #define ADM1026_REG_CONFIG1 (0x00) #define CFG1_MONITOR (0x01) #define CFG1_INT_ENABLE (0x02) #define CFG1_INT_CLEAR (0x04) #define CFG1_AIN8_9 (0x08) #define CFG1_THERM_HOT (0x10) #define CFG1_DAC_AFC (0x20) #define CFG1_PWM_AFC (0x40) #define CFG1_RESET (0x80) #define ADM1026_REG_CONFIG2 (0x01) /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */ #define ADM1026_REG_CONFIG3 (0x07) #define CFG3_GPIO16_ENABLE (0x01) #define CFG3_CI_CLEAR (0x02) #define CFG3_VREF_250 (0x04) #define CFG3_GPIO16_DIR (0x40) #define CFG3_GPIO16_POL (0x80) #define ADM1026_REG_E2CONFIG (0x13) #define E2CFG_READ (0x01) #define E2CFG_WRITE (0x02) #define E2CFG_ERASE (0x04) #define E2CFG_ROM (0x08) #define E2CFG_CLK_EXT (0x80) /* There are 10 general analog inputs and 7 dedicated inputs * They are: * 0 - 9 = AIN0 - AIN9 * 10 = Vbat * 11 = 3.3V Standby * 12 = 3.3V Main * 13 = +5V * 14 = Vccp (CPU core voltage) * 15 = +12V * 16 = -12V */ static u16 REG_IN[] = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f }; static u16 REG_IN_MIN[] = { 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f }; static u16 REG_IN_MAX[] = { 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 }; #define ADM1026_REG_IN(nr) (REG_IN[(nr)]) #define ADM1026_REG_IN_MIN(nr) (REG_IN_MIN[(nr)]) #define ADM1026_REG_IN_MAX(nr) (REG_IN_MAX[(nr)]) /* Temperatures are: * 0 - Internal * 1 - External 1 * 2 - External 2 */ static u16 REG_TEMP[] = { 0x1f, 0x28, 0x29 }; static u16 REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; static u16 REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; static u16 REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; static u16 REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; static u16 REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; #define ADM1026_REG_TEMP(nr) (REG_TEMP[(nr)]) #define ADM1026_REG_TEMP_MIN(nr) (REG_TEMP_MIN[(nr)]) #define ADM1026_REG_TEMP_MAX(nr) (REG_TEMP_MAX[(nr)]) #define ADM1026_REG_TEMP_TMIN(nr) (REG_TEMP_TMIN[(nr)]) #define ADM1026_REG_TEMP_THERM(nr) (REG_TEMP_THERM[(nr)]) #define ADM1026_REG_TEMP_OFFSET(nr) (REG_TEMP_OFFSET[(nr)]) #define ADM1026_REG_FAN(nr) (0x38 + (nr)) #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) #define ADM1026_REG_FAN_DIV_0_3 (0x02) #define ADM1026_REG_FAN_DIV_4_7 (0x03) #define ADM1026_REG_DAC (0x04) #define ADM1026_REG_PWM (0x05) #define ADM1026_REG_GPIO_CFG_0_3 (0x08) #define ADM1026_REG_GPIO_CFG_4_7 (0x09) #define ADM1026_REG_GPIO_CFG_8_11 (0x0a) #define ADM1026_REG_GPIO_CFG_12_15 (0x0b) /* CFG_16 in REG_CFG3 */ #define ADM1026_REG_GPIO_STATUS_0_7 (0x24) #define ADM1026_REG_GPIO_STATUS_8_15 (0x25) /* STATUS_16 in REG_STATUS4 */ #define ADM1026_REG_GPIO_MASK_0_7 (0x1c) #define ADM1026_REG_GPIO_MASK_8_15 (0x1d) /* MASK_16 in REG_MASK4 */ #define ADM1026_REG_COMPANY 0x16 #define ADM1026_REG_VERSTEP 0x17 /* These are the recognized values for the above regs */ #define ADM1026_COMPANY_ANALOG_DEV 0x41 #define ADM1026_VERSTEP_GENERIC 0x40 #define ADM1026_VERSTEP_ADM1026 0x44 #define ADM1026_REG_MASK1 0x18 #define ADM1026_REG_MASK2 0x19 #define ADM1026_REG_MASK3 0x1a #define ADM1026_REG_MASK4 0x1b #define ADM1026_REG_STATUS1 0x20 #define ADM1026_REG_STATUS2 0x21 #define ADM1026_REG_STATUS3 0x22 #define ADM1026_REG_STATUS4 0x23 /* Conversions. Rounding and limit checking is only done on the TO_REG variants. Note that you should be a bit careful with which arguments these macros are called: arguments may be evaluated more than once. */ /* IN are scaled acording to built-in resistors. These are the * voltages corresponding to 3/4 of full scale (192 or 0xc0) * NOTE: The -12V input needs an additional factor to account * for the Vref pullup resistor. * NEG12_OFFSET = SCALE * Vref / V-192 - Vref * = 13875 * 2.50 / 1.875 - 2500 * = 16000 */ #if 1 /* The values in this table are based on Table II, page 15 of the * datasheet. */ static int adm1026_scaling[] = { /* .001 Volts */ 2250, 2250, 2250, 2250, 2250, 2250, 1875, 1875, 1875, 1875, 3000, 3330, 3330, 4995, 2250, 12000, 13875 }; #define NEG12_OFFSET 16000 #else /* The values in this table are based on the resistors in * Figure 5 on page 16. But the 3.3V inputs are not in * the figure and the values for the 5V input are wrong. * For 5V, I'm guessing that R2 at 55.2k is right, but * the total resistance should be 1400 or 1449 like the * other inputs. Using 1449, gives 4.922V at 192. */ static int adm1026_scaling[] = { /* .001 Volts */ 2249, 2249, 2249, 2249, 2249, 2249, 1875, 1875, 1875, 1875, 3329, 3329, 3329, 4922, 2249, 11969, 13889 }; #define NEG12_OFFSET 16019 #endif #define SCALE(val,from,to) (((val)*(to) + ((from)/2))/(from)) #define INS_TO_REG(n,val) (SENSORS_LIMIT(SCALE(val,adm1026_scaling[n],192),0,255)) #if 0 /* If we have extended A/D bits */ #define INSEXT_FROM_REG(n,val,ext) (SCALE((val)*4 + (ext),192*4,adm1026_scaling[n])) #define INS_FROM_REG(n,val) (INSEXT_FROM_REG(n,val,0)) #else #define INS_FROM_REG(n,val) (SCALE(val,192,adm1026_scaling[n])) #endif /* FAN speed is measured using 22.5kHz clock and counts for 2 pulses * and we assume a 2 pulse-per-rev fan tach signal * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 */ #define FAN_TO_REG(val,div) ((val)<=0 ? 0xff : SENSORS_LIMIT(1350000/((val)*(div)),1,254)) #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==0xff ? 0 : 1350000/((val)*(div))) #define DIV_FROM_REG(val) (1<<(val)) #define DIV_TO_REG(val) ((val)>=8 ? 3 : (val)>=4 ? 2 : (val)>=2 ? 1 : 0) /* Temperature is reported in 1 degC increments */ #define TEMP_TO_REG(val) (SENSORS_LIMIT(val,-127,127)) #define TEMP_FROM_REG(val) (val) #define OFFSET_TO_REG(val) (SENSORS_LIMIT(val,-127,127)) #define OFFSET_FROM_REG(val) (val) #define PWM_TO_REG(val) (SENSORS_LIMIT(val,0,255)) #define PWM_FROM_REG(val) (val) /* Analog output is a voltage, but it's used like a PWM * Seems like this should be scaled, but to be consistent * with other drivers, we do it this way. */ #define DAC_TO_REG(val) (SENSORS_LIMIT(val,0,255)) #define DAC_FROM_REG(val) (val) /* sensors_vid.h defines vid_from_reg() */ #define VID_FROM_REG(val,vrm) (vid_from_reg(val,vrm)) #define ALARMS_FROM_REG(val) (val) /* Unlike some other drivers we DO NOT set initial limits. Use * the config file to set limits. */ /* Typically used with systems using a v9.1 VRM spec ? */ #define ADM1026_INIT_VRM 91 #define ADM1026_INIT_VID -1 /* Chip sampling rates * * Some sensors are not updated more frequently than once per second * so it doesn't make sense to read them more often than that. * We cache the results and return the saved data if the driver * is called again before a second has elapsed. * * Also, there is significant configuration data for this chip * So, we keep the config data up to date in the cache * when it is written and only sample it once every 5 *minutes* */ #define ADM1026_DATA_INTERVAL (1 * HZ) #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) /* We allow for multiple chips in a single system. * * For each registered ADM1026, we need to keep state information * at client->data. The adm1026_data structure is dynamically * allocated, when a new client structure is allocated. */ struct adm1026_data { struct semaphore lock; int sysctl_id; enum chips type; struct semaphore update_lock; int valid; /* !=0 if following fields are valid */ unsigned long last_reading; /* In jiffies */ unsigned long last_config; /* In jiffies */ u8 in[17]; /* Register value */ u8 in_max[17]; /* Register value */ u8 in_min[17]; /* Register value */ s8 temp[3]; /* Register value */ s8 temp_min[3]; /* Register value */ s8 temp_max[3]; /* Register value */ s8 temp_tmin[3]; /* Register value */ s8 temp_therm[3]; /* Register value */ s8 temp_offset[3]; /* Register value */ u8 fan[8]; /* Register value */ u8 fan_min[8]; /* Register value */ u8 fan_div[8]; /* Decoded value */ u8 pwm; /* Register value */ u8 analog_out; /* Register value */ int vid; /* Decoded value */ u8 vrm; /* VRM version */ long alarms; /* Register encoding, combined */ long alarm_mask; /* Register encoding, combined */ long gpio; /* Register encoding, combined */ long gpio_mask; /* Register encoding, combined */ u8 gpio_config[17]; /* Decoded value */ u8 config1; /* Register value */ u8 config2; /* Register value */ u8 config3; /* Register value */ }; static int adm1026_attach_adapter(struct i2c_adapter *adapter); static int adm1026_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind); static int adm1026_detach_client(struct i2c_client *client); static int adm1026_read_value(struct i2c_client *client, u8 register); static int adm1026_write_value(struct i2c_client *client, u8 register, int value); static void adm1026_print_gpio(struct i2c_client *client); static void adm1026_fixup_gpio(struct i2c_client *client); static void adm1026_update_client(struct i2c_client *client); static void adm1026_init_client(struct i2c_client *client); static void adm1026_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_in16(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_fixup_fan_min(struct i2c_client *client, int fan, int old_div); static void adm1026_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_temp_offset(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_temp_tmin(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_temp_therm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_vrm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_alarm_mask(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_gpio(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_gpio_mask(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_pwm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_analog_out(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static void adm1026_afc(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results); static struct i2c_driver adm1026_driver = { .owner = THIS_MODULE, .name = "ADM1026 compatible sensor driver", .id = I2C_DRIVERID_ADM1026, .flags = I2C_DF_NOTIFY, .attach_adapter = &adm1026_attach_adapter, .detach_client = &adm1026_detach_client, }; /* Unique ID assigned to each ADM1026 detected */ static int adm1026_id = 0; /* -- SENSORS SYSCTL START -- */ #define ADM1026_SYSCTL_FAN0 1000 #define ADM1026_SYSCTL_FAN1 1001 #define ADM1026_SYSCTL_FAN2 1002 #define ADM1026_SYSCTL_FAN3 1003 #define ADM1026_SYSCTL_FAN4 1004 #define ADM1026_SYSCTL_FAN5 1005 #define ADM1026_SYSCTL_FAN6 1006 #define ADM1026_SYSCTL_FAN7 1007 #define ADM1026_SYSCTL_FAN_DIV 1008 #define ADM1026_SYSCTL_GPIO 1009 #define ADM1026_SYSCTL_GPIO_MASK 1010 #define ADM1026_SYSCTL_ALARMS 1011 #define ADM1026_SYSCTL_ALARM_MASK 1012 #define ADM1026_SYSCTL_IN0 1013 #define ADM1026_SYSCTL_IN1 1014 #define ADM1026_SYSCTL_IN2 1015 #define ADM1026_SYSCTL_IN3 1016 #define ADM1026_SYSCTL_IN4 1017 #define ADM1026_SYSCTL_IN5 1018 #define ADM1026_SYSCTL_IN6 1019 #define ADM1026_SYSCTL_IN7 1020 #define ADM1026_SYSCTL_IN8 1021 #define ADM1026_SYSCTL_IN9 1022 #define ADM1026_SYSCTL_IN10 1023 #define ADM1026_SYSCTL_IN11 1024 #define ADM1026_SYSCTL_IN12 1025 #define ADM1026_SYSCTL_IN13 1026 #define ADM1026_SYSCTL_IN14 1027 #define ADM1026_SYSCTL_IN15 1028 #define ADM1026_SYSCTL_IN16 1029 #define ADM1026_SYSCTL_PWM 1030 #define ADM1026_SYSCTL_ANALOG_OUT 1031 #define ADM1026_SYSCTL_AFC 1032 #define ADM1026_SYSCTL_TEMP1 1033 #define ADM1026_SYSCTL_TEMP2 1034 #define ADM1026_SYSCTL_TEMP3 1035 #define ADM1026_SYSCTL_TEMP_OFFSET1 1036 #define ADM1026_SYSCTL_TEMP_OFFSET2 1037 #define ADM1026_SYSCTL_TEMP_OFFSET3 1038 #define ADM1026_SYSCTL_TEMP_THERM1 1039 #define ADM1026_SYSCTL_TEMP_THERM2 1040 #define ADM1026_SYSCTL_TEMP_THERM3 1041 #define ADM1026_SYSCTL_TEMP_TMIN1 1042 #define ADM1026_SYSCTL_TEMP_TMIN2 1043 #define ADM1026_SYSCTL_TEMP_TMIN3 1044 #define ADM1026_SYSCTL_VID 1045 #define ADM1026_SYSCTL_VRM 1046 #define ADM1026_ALARM_TEMP2 (1L << 0) #define ADM1026_ALARM_TEMP3 (1L << 1) #define ADM1026_ALARM_IN9 (1L << 1) #define ADM1026_ALARM_IN11 (1L << 2) #define ADM1026_ALARM_IN12 (1L << 3) #define ADM1026_ALARM_IN13 (1L << 4) #define ADM1026_ALARM_IN14 (1L << 5) #define ADM1026_ALARM_IN15 (1L << 6) #define ADM1026_ALARM_IN16 (1L << 7) #define ADM1026_ALARM_IN0 (1L << 8) #define ADM1026_ALARM_IN1 (1L << 9) #define ADM1026_ALARM_IN2 (1L << 10) #define ADM1026_ALARM_IN3 (1L << 11) #define ADM1026_ALARM_IN4 (1L << 12) #define ADM1026_ALARM_IN5 (1L << 13) #define ADM1026_ALARM_IN6 (1L << 14) #define ADM1026_ALARM_IN7 (1L << 15) #define ADM1026_ALARM_FAN0 (1L << 16) #define ADM1026_ALARM_FAN1 (1L << 17) #define ADM1026_ALARM_FAN2 (1L << 18) #define ADM1026_ALARM_FAN3 (1L << 19) #define ADM1026_ALARM_FAN4 (1L << 20) #define ADM1026_ALARM_FAN5 (1L << 21) #define ADM1026_ALARM_FAN6 (1L << 22) #define ADM1026_ALARM_FAN7 (1L << 23) #define ADM1026_ALARM_TEMP1 (1L << 24) #define ADM1026_ALARM_IN10 (1L << 25) #define ADM1026_ALARM_IN8 (1L << 26) #define ADM1026_ALARM_THERM (1L << 27) #define ADM1026_ALARM_AFC_FAN (1L << 28) #define ADM1026_ALARM_UNUSED (1L << 29) #define ADM1026_ALARM_CI (1L << 30) /* -- SENSORS SYSCTL END -- */ /* The /proc/sys entries */ /* These files are created for each detected ADM1026. This is just a template; * The actual list is built from this and additional per-chip * custom lists below. Note the XXX_LEN macros. These must be * compile time constants because they will be used to allocate * space for the final template passed to i2c_register_entry. * We depend on the ability of GCC to evaluate expressions at * compile time to turn these expressions into compile time * constants, but this can generate a warning. */ static ctl_table adm1026_common[] = { {ADM1026_SYSCTL_IN0, "in0", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN1, "in1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN2, "in2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN3, "in3", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN4, "in4", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN5, "in5", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN6, "in6", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN7, "in7", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN8, "in8", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN9, "in9", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN10, "in10", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN11, "in11", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN12, "in12", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN13, "in13", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN14, "in14", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN15, "in15", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in}, {ADM1026_SYSCTL_IN16, "in16", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_in16}, {ADM1026_SYSCTL_FAN0, "fan0", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN1, "fan1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN2, "fan2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN3, "fan3", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN4, "fan4", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN5, "fan5", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN6, "fan6", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN7, "fan7", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan}, {ADM1026_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_fan_div}, {ADM1026_SYSCTL_TEMP1, "temp1", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp}, {ADM1026_SYSCTL_TEMP2, "temp2", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp}, {ADM1026_SYSCTL_TEMP3, "temp3", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp}, {ADM1026_SYSCTL_TEMP_OFFSET1, "temp1_offset", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_offset}, {ADM1026_SYSCTL_TEMP_OFFSET2, "temp2_offset", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_offset}, {ADM1026_SYSCTL_TEMP_OFFSET3, "temp3_offset", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_offset}, {ADM1026_SYSCTL_TEMP_TMIN1, "temp1_tmin", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_tmin}, {ADM1026_SYSCTL_TEMP_TMIN2, "temp2_tmin", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_tmin}, {ADM1026_SYSCTL_TEMP_TMIN3, "temp3_tmin", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_tmin}, {ADM1026_SYSCTL_TEMP_THERM1, "temp1_therm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_therm}, {ADM1026_SYSCTL_TEMP_THERM2, "temp2_therm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_therm}, {ADM1026_SYSCTL_TEMP_THERM3, "temp3_therm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_temp_therm}, {ADM1026_SYSCTL_VID, "vid", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_vid}, {ADM1026_SYSCTL_VRM, "vrm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_vrm}, {ADM1026_SYSCTL_ALARMS, "alarms", NULL, 0, 0444, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_alarms}, {ADM1026_SYSCTL_ALARM_MASK, "alarm_mask", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_alarm_mask}, {ADM1026_SYSCTL_GPIO, "gpio", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_gpio}, {ADM1026_SYSCTL_GPIO_MASK, "gpio_mask", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_gpio_mask}, {ADM1026_SYSCTL_PWM, "pwm", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_pwm}, {ADM1026_SYSCTL_ANALOG_OUT, "analog_out", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_analog_out}, {ADM1026_SYSCTL_AFC, "afc", NULL, 0, 0644, NULL, &i2c_proc_real, &i2c_sysctl_real, NULL, &adm1026_afc}, {0} }; #define CTLTBL_COMMON (sizeof(adm1026_common)/sizeof(adm1026_common[0])) #define MAX2(a,b) ((a)>(b)?(a):(b)) #define MAX3(a,b,c) ((a)>(b)?MAX2((a),(c)):MAX2((b),(c))) #define MAX4(a,b,c,d) ((a)>(b)?MAX3((a),(c),(d)):MAX3((b),(c),(d))) #define CTLTBL_MAX (CTLTBL_COMMON) /* This function is called when: * the module is loaded * a new adapter is loaded */ int adm1026_attach_adapter(struct i2c_adapter *adapter) { return i2c_detect(adapter, &addr_data, adm1026_detect); } /* This function is called by i2c_detect */ int adm1026_detect(struct i2c_adapter *adapter, int address, unsigned short flags, int kind) { int i; int company, verstep ; struct i2c_client *new_client; struct adm1026_data *data; int err = 0; const char *type_name = ""; struct ctl_table template[CTLTBL_MAX] ; struct ctl_table * template_next = template ; if (i2c_is_isa_adapter(adapter)) { /* This chip has no ISA interface */ goto ERROR0 ; } if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { /* We need to be able to do byte I/O */ goto ERROR0 ; } /* OK. For now, we presume we have a valid client. We now create the client structure, even though we cannot fill it completely yet. But it allows us to access adm1026_{read,write}_value. */ if (!(new_client = kmalloc((sizeof(struct i2c_client)) + sizeof(struct adm1026_data), GFP_KERNEL))) { err = -ENOMEM; goto ERROR0; } data = (struct adm1026_data *) (new_client + 1); new_client->addr = address; new_client->data = data; new_client->adapter = adapter; new_client->driver = &adm1026_driver; new_client->flags = 0; /* Now, we do the remaining detection. */ company = adm1026_read_value(new_client, ADM1026_REG_COMPANY); verstep = adm1026_read_value(new_client, ADM1026_REG_VERSTEP); #ifdef DEBUG printk("adm1026: Detecting device at %d,0x%02x with" " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", i2c_adapter_id(new_client->adapter), new_client->addr, company, verstep ); #endif /* If auto-detecting, Determine the chip type. */ if (kind <= 0) { #ifdef DEBUG printk("adm1026: Autodetecting device at %d,0x%02x ...\n", i2c_adapter_id(adapter), address ); #endif if( company == ADM1026_COMPANY_ANALOG_DEV && verstep == ADM1026_VERSTEP_ADM1026 ) { kind = adm1026 ; } else if( company == ADM1026_COMPANY_ANALOG_DEV && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC ) { printk("adm1026: Unrecgonized stepping 0x%02x" " Defaulting to ADM1026.\n", verstep ); kind = adm1026 ; } else if( (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC ) { printk("adm1026: Found version/stepping 0x%02x" " Assuming generic ADM1026.\n", verstep ); kind = any_chip ; } else { #ifdef DEBUG printk("adm1026: Autodetection failed\n"); #endif /* Not an ADM1026 ... */ if( kind == 0 ) { /* User used force=x,y */ printk("adm1026: Generic ADM1026 Version 6 not" " found at %d,0x%02x. Try force_adm1026.\n", i2c_adapter_id(adapter), address ); } err = 0 ; goto ERROR1; } } /* Fill in the chip specific driver values */ switch (kind) { case any_chip : type_name = "adm1026"; strcpy(new_client->name, "Generic ADM1026"); template_next = template ; /* None used */ break ; case adm1026 : type_name = "adm1026"; strcpy(new_client->name, "Analog Devices ADM1026"); template_next = template ; break ; #if 0 /* Example of another adm1026 "compatible" device */ case adx1000 : type_name = "adx1000"; strcpy(new_client->name, "Compatible ADX1000"); memcpy( template, adx_specific, sizeof(adx_specific) ); template_next = template + CTLTBL_ADX1000 ; break ; #endif default : printk("adm1026: Internal error, invalid kind (%d)!", kind); err = -EFAULT ; goto ERROR1; } /* Fill in the remaining client fields */ new_client->id = adm1026_id++; printk("adm1026(%d): Assigning ID %d to %s at %d,0x%02x\n", new_client->id, new_client->id, new_client->name, i2c_adapter_id(new_client->adapter), new_client->addr ); /* Housekeeping values */ data->type = kind; data->valid = 0; /* Set the VRM version */ data->vrm = ADM1026_INIT_VRM ; data->vid = ADM1026_INIT_VID ; init_MUTEX(&data->update_lock); /* Initialize the ADM1026 chip */ adm1026_init_client(new_client); /* Tell the I2C layer a new client has arrived */ if ((err = i2c_attach_client(new_client))) goto ERROR1; /* Finish out the template */ memcpy(template_next, adm1026_common, sizeof(adm1026_common)); /* Register a new directory entry with module sensors */ if ((i = i2c_register_entry(new_client, type_name, template)) < 0) { err = i; goto ERROR2; } data->sysctl_id = i; return 0; /* Error out and cleanup code */ ERROR2: i2c_detach_client(new_client); ERROR1: kfree(new_client); ERROR0: return err; } int adm1026_detach_client(struct i2c_client *client) { int err; int id ; id = client->id; i2c_deregister_entry(((struct adm1026_data *)(client->data))->sysctl_id); if ((err = i2c_detach_client(client))) { printk("adm1026(%d): Client deregistration failed," " client not detached.\n", id ); return err; } kfree(client); return 0; } int adm1026_read_value(struct i2c_client *client, u8 reg) { int res; if( reg < 0x80 ) { /* "RAM" locations */ res = i2c_smbus_read_byte_data(client, reg) & 0xff ; } else { /* EEPROM, do nothing */ res = 0 ; } return res ; } int adm1026_write_value(struct i2c_client *client, u8 reg, int value) { int res ; if( reg < 0x80 ) { /* "RAM" locations */ res = i2c_smbus_write_byte_data(client, reg, value); } else { /* EEPROM, do nothing */ res = 0 ; } return res ; } /* Called when we have found a new ADM1026. */ void adm1026_init_client(struct i2c_client *client) { int value ; int i; struct adm1026_data *data = client->data; #ifdef DEBUG printk("adm1026(%d): Initializing device\n", client->id); #endif /* Read chip config */ data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); /* Inform user of chip config */ #ifdef DEBUG printk("adm1026(%d): ADM1026_REG_CONFIG1 is: 0x%02x\n", client->id, data->config1 ); #endif if( (data->config1 & CFG1_MONITOR) == 0 ) { printk("adm1026(%d): Monitoring not currently enabled.\n", client->id ); } if( data->config1 & CFG1_INT_ENABLE ) { printk("adm1026(%d): SMBALERT interrupts are enabled.\n", client->id ); } if( data->config1 & CFG1_AIN8_9 ) { printk("adm1026(%d): in8 and in9 enabled. temp3 disabled.\n", client->id ); } else { printk("adm1026(%d): temp3 enabled. in8 and in9 disabled.\n", client->id ); } if( data->config1 & CFG1_THERM_HOT ) { printk("adm1026(%d): Automatic THERM, PWM, and temp limits enabled.\n", client->id ); } value = data->config3 ; if( data->config3 & CFG3_GPIO16_ENABLE ) { printk("adm1026(%d): GPIO16 enabled. THERM pin disabled.\n", client->id ); } else { printk("adm1026(%d): THERM pin enabled. GPIO16 disabled.\n", client->id ); } if( data->config3 & CFG3_VREF_250 ) { printk("adm1026(%d): Vref is 2.50 Volts.\n", client->id ); } else { printk("adm1026(%d): Vref is 1.82 Volts.\n", client->id ); } /* Read and pick apart the existing GPIO configuration */ value = 0 ; for( i = 0 ; i <= 15 ; ++i ) { if( (i & 0x03) == 0 ) { value = adm1026_read_value(client, ADM1026_REG_GPIO_CFG_0_3 + i/4 ); } data->gpio_config[i] = value & 0x03 ; value >>= 2 ; } data->gpio_config[16] = (data->config3 >> 6) & 0x03 ; /* ... and then print it */ adm1026_print_gpio(client); /* If the user asks us to reprogram the GPIO config, then * do it now. But only if this is the first ADM1026. */ if( client->id == 0 && (gpio_input[0] != -1 || gpio_output[0] != -1 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 || gpio_fan[0] != -1 ) ) { adm1026_fixup_gpio(client); } /* WE INTENTIONALLY make no changes to the limits, * offsets, pwms and fans. If they were * configured, we don't want to mess with them. * If they weren't, the default is generally safe * and will suffice until 'sensors -s' can be run. */ /* Start monitoring */ value = adm1026_read_value(client, ADM1026_REG_CONFIG1); /* Set MONITOR, clear interrupt acknowledge and s/w reset */ value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET) ; #ifdef DEBUG printk("adm1026(%d): Setting CONFIG to: 0x%02x\n", client->id, value ); #endif data->config1 = value ; adm1026_write_value(client, ADM1026_REG_CONFIG1, value); } void adm1026_print_gpio(struct i2c_client *client) { struct adm1026_data *data = client->data; int i ; printk("adm1026(%d): GPIO config is:\nadm1026(%d):", client->id, client->id ); for( i = 0 ; i <= 7 ; ++i ) { if( data->config2 & (1 << i) ) { printk( " %sGP%s%d", data->gpio_config[i] & 0x02 ? "" : "!", data->gpio_config[i] & 0x01 ? "OUT" : "IN", i ); } else { printk( " FAN%d", i ); } } printk( "\nadm1026(%d):", client->id ); for( i = 8 ; i <= 15 ; ++i ) { printk( " %sGP%s%d", data->gpio_config[i] & 0x02 ? "" : "!", data->gpio_config[i] & 0x01 ? "OUT" : "IN", i ); } if( data->config3 & CFG3_GPIO16_ENABLE ) { printk( " %sGP%s16\n", data->gpio_config[16] & 0x02 ? "" : "!", data->gpio_config[16] & 0x01 ? "OUT" : "IN" ); } else { /* GPIO16 is THERM */ printk( " THERM\n" ); } } void adm1026_fixup_gpio(struct i2c_client *client) { struct adm1026_data *data = client->data; int i ; int value ; /* Make the changes requested. */ /* We may need to unlock/stop monitoring or soft-reset the * chip before we can make changes. This hasn't been * tested much. FIXME */ /* Make outputs */ for( i = 0 ; i <= 16 ; ++i ) { if( gpio_output[i] >= 0 && gpio_output[i] <= 16 ) { data->gpio_config[gpio_output[i]] |= 0x01 ; } /* if GPIO0-7 is output, it isn't a FAN tach */ if( gpio_output[i] >= 0 && gpio_output[i] <= 7 ) { data->config2 |= 1 << gpio_output[i] ; } } /* Input overrides output */ for( i = 0 ; i <= 16 ; ++i ) { if( gpio_input[i] >= 0 && gpio_input[i] <= 16 ) { data->gpio_config[gpio_input[i]] &= ~ 0x01 ; } /* if GPIO0-7 is input, it isn't a FAN tach */ if( gpio_input[i] >= 0 && gpio_input[i] <= 7 ) { data->config2 |= 1 << gpio_input[i] ; } } /* Inverted */ for( i = 0 ; i <= 16 ; ++i ) { if( gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16 ) { data->gpio_config[gpio_inverted[i]] &= ~ 0x02 ; } } /* Normal overrides inverted */ for( i = 0 ; i <= 16 ; ++i ) { if( gpio_normal[i] >= 0 && gpio_normal[i] <= 16 ) { data->gpio_config[gpio_normal[i]] |= 0x02 ; } } /* Fan overrides input and output */ for( i = 0 ; i <= 7 ; ++i ) { if( gpio_fan[i] >= 0 && gpio_fan[i] <= 7 ) { data->config2 &= ~( 1 << gpio_fan[i] ); } } /* Write new configs to registers */ adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); data->config3 = (data->config3 & 0x3f) | ((data->gpio_config[16] & 0x03) << 6) ; adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); for( i = 15, value = 0 ; i >= 0 ; --i ) { value <<= 2 ; value |= data->gpio_config[i] & 0x03 ; if( (i & 0x03) == 0 ) { adm1026_write_value(client, ADM1026_REG_GPIO_CFG_0_3 + i/4, value ); value = 0 ; } } /* Print the new config */ adm1026_print_gpio(client); } void adm1026_update_client(struct i2c_client *client) { struct adm1026_data *data = client->data; int i; long value, alarms, gpio ; down(&data->update_lock); if (!data->valid || (jiffies - data->last_reading > ADM1026_DATA_INTERVAL )) { /* Things that change quickly */ #ifdef DEBUG printk("adm1026(%d): Reading sensor values\n", client->id); #endif for (i = 0 ; i <= 16 ; ++i) { data->in[i] = adm1026_read_value(client, ADM1026_REG_IN(i)); } for (i = 0 ; i <= 7 ; ++i) { data->fan[i] = adm1026_read_value(client, ADM1026_REG_FAN(i)); } for (i = 0 ; i <= 2 ; ++i) { /* NOTE: temp[] is s8 and we assume 2's complement * "conversion" in the assignment */ data->temp[i] = adm1026_read_value(client, ADM1026_REG_TEMP(i)); } data->pwm = adm1026_read_value(client, ADM1026_REG_PWM); data->analog_out = adm1026_read_value(client, ADM1026_REG_DAC); /* GPIO16 is MSbit of alarms, move it to gpio */ alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); gpio = alarms & 0x80 ? 0x0100 : 0 ; /* GPIO16 */ alarms &= 0x7f ; alarms <<= 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); alarms <<= 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); alarms <<= 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); data->alarms = alarms ; /* Read the GPIO values */ gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_STATUS_8_15); gpio <<= 8 ; gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_STATUS_0_7); data->gpio = gpio ; data->last_reading = jiffies ; }; /* last_reading */ if (!data->valid || (jiffies - data->last_config > ADM1026_CONFIG_INTERVAL) ) { /* Things that don't change often */ #ifdef DEBUG printk("adm1026(%d): Reading config values\n", client->id); #endif for (i = 0 ; i <= 16 ; ++i) { data->in_min[i] = adm1026_read_value(client, ADM1026_REG_IN_MIN(i)); data->in_max[i] = adm1026_read_value(client, ADM1026_REG_IN_MAX(i)); } value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); for (i = 0 ; i <= 7 ; ++i) { data->fan_min[i] = adm1026_read_value(client, ADM1026_REG_FAN_MIN(i)); data->fan_div[i] = DIV_FROM_REG(value & 0x03); value >>= 2 ; } for (i = 0; i <= 2; ++i) { /* NOTE: temp_xxx[] are s8 and we assume 2's complement * "conversion" in the assignment */ data->temp_min[i] = adm1026_read_value(client, ADM1026_REG_TEMP_MIN(i)); data->temp_max[i] = adm1026_read_value(client, ADM1026_REG_TEMP_MAX(i)); data->temp_tmin[i] = adm1026_read_value(client, ADM1026_REG_TEMP_TMIN(i)); data->temp_therm[i] = adm1026_read_value(client, ADM1026_REG_TEMP_THERM(i)); data->temp_offset[i] = adm1026_read_value(client, ADM1026_REG_TEMP_OFFSET(i)); } /* Read the STATUS/alarm masks */ alarms = adm1026_read_value(client, ADM1026_REG_MASK4); gpio = alarms & 0x80 ? 0x0100 : 0 ; /* GPIO16 */ alarms = (alarms & 0x7f) << 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); alarms <<= 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); alarms <<= 8 ; alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); data->alarm_mask = alarms ; /* Read the GPIO values */ gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_8_15); gpio <<= 8 ; gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); data->gpio_mask = gpio ; /* Read the GPIO config */ data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); data->gpio_config[16] = (data->config3 >> 6) & 0x03 ; value = 0 ; for( i = 0 ; i <= 15 ; ++i ) { if( (i & 0x03) == 0 ) { value = adm1026_read_value(client, ADM1026_REG_GPIO_CFG_0_3 + i/4 ); } data->gpio_config[i] = value & 0x03 ; value >>= 2 ; } data->last_config = jiffies; }; /* last_config */ /* We don't know where or even _if_ the VID might be on the GPIO * pins. But the datasheet gives an example config showing * GPIO11-15 being used to monitor VID0-4, so we go with that * but make the vid WRITEABLE so if it's wrong, the user can * set it in /etc/sensors.conf perhaps using an expression or * 0 to trigger a re-read from the GPIO pins. */ if( data->vid == ADM1026_INIT_VID ) { /* Hasn't been set yet, make a bold assumption */ printk("adm1026(%d): Setting VID from GPIO11-15.\n", client->id ); data->vid = (data->gpio >> 11) & 0x1f ; } data->valid = 1; up(&data->update_lock); } /* The following functions are the call-back functions of the /proc/sys and sysctl files. The appropriate function is referenced in the ctl_table extra1 field. Each function must return the magnitude (power of 10 to divide the data with) if it is called with operation set to SENSORS_PROC_REAL_INFO. It must put a maximum of *nrels elements in results reflecting the data of this file, and set *nrels to the number it actually put in it, if operation is SENSORS_PROC_REAL_READ. Finally, it must get up to *nrels elements from results and write them to the chip, if operations is SENSORS_PROC_REAL_WRITE. */ void adm1026_in(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_IN0; /* We handle in0 - in15 here. in16 (-12V) is handled below */ if (nr < 0 || nr > 15) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 3; /* 1.000 */ else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = INS_FROM_REG(nr,data->in_min[nr]); results[1] = INS_FROM_REG(nr,data->in_max[nr]); results[2] = INS_FROM_REG(nr,data->in[nr]); *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 1) { data->in_max[nr] = INS_TO_REG(nr,results[1]); adm1026_write_value(client, ADM1026_REG_IN_MAX(nr), data->in_max[nr]); } if (*nrels_mag > 0) { data->in_min[nr] = INS_TO_REG(nr,results[0]); adm1026_write_value(client, ADM1026_REG_IN_MIN(nr), data->in_min[nr]); } up(&data->update_lock); } } void adm1026_in16(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_IN0; /* We handle in16 (-12V) here */ if (nr != 16) return ; /* ERROR */ /* Apply offset and swap min/max so that min is 90% of * target and max is 110% of target. */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 3; /* 1.000 */ else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = INS_FROM_REG(nr,data->in_max[nr])-NEG12_OFFSET ; results[1] = INS_FROM_REG(nr,data->in_min[nr])-NEG12_OFFSET ; results[2] = INS_FROM_REG(nr,data->in[nr])-NEG12_OFFSET ; *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 1) { data->in_min[nr] = INS_TO_REG(nr,results[1]+NEG12_OFFSET); adm1026_write_value(client, ADM1026_REG_IN_MIN(nr), data->in_min[nr]); } if (*nrels_mag > 0) { data->in_max[nr] = INS_TO_REG(nr,results[0]+NEG12_OFFSET); adm1026_write_value(client, ADM1026_REG_IN_MAX(nr), data->in_max[nr]); } up(&data->update_lock); } } void adm1026_fan(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_FAN0 ; if (nr < 0 || nr > 7) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = FAN_FROM_REG(data->fan_min[nr], data->fan_div[nr]); results[1] = FAN_FROM_REG(data->fan[nr], data->fan_div[nr]); *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->fan_min[nr] = FAN_TO_REG(results[0], data->fan_div[nr]); adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), data->fan_min[nr]); } up(&data->update_lock); } } /* Adjust fan_min to account for new fan divisor */ void adm1026_fixup_fan_min(struct i2c_client *client, int fan, int old_div) { struct adm1026_data *data = client->data; int new_div = data->fan_div[fan] ; int new_min; /* 0 and 0xff are special. Don't adjust them */ if( data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff ) { return ; } new_min = data->fan_min[fan] * old_div / new_div ; new_min = SENSORS_LIMIT(new_min, 1, 254); data->fan_min[fan] = new_min ; adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); } void adm1026_fan_div(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int i ; int value, div, old ; if (ctl_name != ADM1026_SYSCTL_FAN_DIV) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); for( i = 0 ; i <= 7 ; ++i ) { results[i] = data->fan_div[i] ; } *nrels_mag = 8; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); value = 0 ; for( i = 7 ; i >= 0 ; --i ) { value <<= 2 ; if (*nrels_mag > i) { old = data->fan_div[i] ; div = DIV_TO_REG(results[i]) ; data->fan_div[i] = DIV_FROM_REG(div) ; if( data->fan_div[i] != old ) { adm1026_fixup_fan_min(client,i,old); } } else { div = DIV_TO_REG(data->fan_div[i]) ; } value |= div ; } adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, value & 0xff); adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, (value >> 8) & 0xff); up(&data->update_lock); } } void adm1026_temp(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_TEMP1 ; if (nr < 0 || nr > 2) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = TEMP_FROM_REG(data->temp_min[nr]); results[1] = TEMP_FROM_REG(data->temp_max[nr]); results[2] = TEMP_FROM_REG(data->temp[nr]); *nrels_mag = 3; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 1) { data->temp_max[nr] = TEMP_TO_REG(results[1]); adm1026_write_value(client, ADM1026_REG_TEMP_MAX(nr), data->temp_max[nr]); } if (*nrels_mag > 0) { data->temp_min[nr] = TEMP_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_TEMP_MIN(nr), data->temp_min[nr]); } up(&data->update_lock); } } void adm1026_temp_offset(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_TEMP_OFFSET1 ; if (nr < 0 || nr > 2) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = TEMP_FROM_REG(data->temp_offset[nr]); *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->temp_offset[nr] = TEMP_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET(nr), data->temp_offset[nr]); } up(&data->update_lock); } } void adm1026_temp_tmin(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_TEMP_TMIN1 ; if (nr < 0 || nr > 2) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = TEMP_FROM_REG(data->temp_tmin[nr]); *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->temp_tmin[nr] = TEMP_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_TEMP_TMIN(nr), data->temp_tmin[nr]); } up(&data->update_lock); } } void adm1026_temp_therm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; int nr = ctl_name - ADM1026_SYSCTL_TEMP_THERM1 ; if (nr < 0 || nr > 2) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = TEMP_FROM_REG(data->temp_therm[nr]); *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->temp_therm[nr] = TEMP_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_TEMP_THERM(nr), data->temp_therm[nr]); } up(&data->update_lock); } } void adm1026_pwm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if (ctl_name != ADM1026_SYSCTL_PWM) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = PWM_FROM_REG(data->pwm); results[1] = 1 ; /* Always enabled */ *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); /* PWM enable is read-only */ if (*nrels_mag > 0) { data->pwm = PWM_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_PWM, data->pwm); } up(&data->update_lock); } } void adm1026_analog_out(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if (ctl_name != ADM1026_SYSCTL_ANALOG_OUT) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; /* 0 - 255 */ else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = DAC_FROM_REG(data->analog_out); *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->analog_out = DAC_TO_REG(results[0]); adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); } up(&data->update_lock); } } void adm1026_afc(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if (ctl_name != ADM1026_SYSCTL_AFC) return ; /* ERROR */ /* PWM auto fan control, DAC auto fan control */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = (data->config1 & CFG1_PWM_AFC) != 0 ; results[1] = (data->config1 & CFG1_DAC_AFC) != 0 ; *nrels_mag = 2; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 1) { data->config1 = (data->config1 & ~CFG1_DAC_AFC) | (results[1] ? CFG1_DAC_AFC : 0) ; } if (*nrels_mag > 0) { data->config1 = (data->config1 & ~CFG1_PWM_AFC) | (results[0] ? CFG1_PWM_AFC : 0) ; adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1); } up(&data->update_lock); } } void adm1026_vid(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if( ctl_name != ADM1026_SYSCTL_VID ) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 3; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = VID_FROM_REG((data->vid)&0x3f,data->vrm); *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); /* Hmmm... There isn't a VID_TO_REG mapping */ if (*nrels_mag > 0) { if( results[0] >= 0 ) { data->vid = results[0] & 0x3f ; } else { data->vid = ADM1026_INIT_VID ; } } up(&data->update_lock); } } void adm1026_vrm(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if( ctl_name != ADM1026_SYSCTL_VRM ) return ; /* ERROR */ 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 > 0) { data->vrm = results[0] ; } } } void adm1026_alarms(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; if( ctl_name != ADM1026_SYSCTL_ALARMS ) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = data->alarms ; *nrels_mag = 1; } /* FIXME: Perhaps we should implement a write function * to clear an alarm? */ } void adm1026_alarm_mask(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; unsigned long mask ; if( ctl_name != ADM1026_SYSCTL_ALARM_MASK ) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = data->alarm_mask ; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->alarm_mask = results[0] & 0x7fffffff ; mask = data->alarm_mask | (data->gpio_mask & 0x10000 ? 0x80000000 : 0) ; adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); mask >>= 8 ; adm1026_write_value(client, ADM1026_REG_MASK2, mask & 0xff); mask >>= 8 ; adm1026_write_value(client, ADM1026_REG_MASK3, mask & 0xff); mask >>= 8 ; adm1026_write_value(client, ADM1026_REG_MASK4, mask & 0xff); } up(&data->update_lock); } } void adm1026_gpio(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; long gpio ; if( ctl_name != ADM1026_SYSCTL_GPIO ) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = data->gpio ; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->gpio = results[0] & 0x1ffff ; gpio = data->gpio ; adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff ); gpio >>= 8 ; adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff ); gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff ); } up(&data->update_lock); } } void adm1026_gpio_mask(struct i2c_client *client, int operation, int ctl_name, int *nrels_mag, long *results) { struct adm1026_data *data = client->data; long mask ; if( ctl_name != ADM1026_SYSCTL_GPIO_MASK ) return ; /* ERROR */ if (operation == SENSORS_PROC_REAL_INFO) *nrels_mag = 0; else if (operation == SENSORS_PROC_REAL_READ) { adm1026_update_client(client); results[0] = data->gpio_mask ; *nrels_mag = 1; } else if (operation == SENSORS_PROC_REAL_WRITE) { down(&data->update_lock); if (*nrels_mag > 0) { data->gpio_mask = results[0] & 0x1ffff ; mask = data->gpio_mask ; adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); mask >>= 8 ; adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); } up(&data->update_lock); } } static int __init sm_adm1026_init(void) { printk("adm1026: Version %s (%s)\n", LM_VERSION, LM_DATE); printk("adm1026: See http://www.penguincomputing.com/lm_sensors for more info.\n" ); return i2c_add_driver(&adm1026_driver); } static void __exit sm_adm1026_exit(void) { i2c_del_driver(&adm1026_driver); } MODULE_LICENSE("GPL"); MODULE_AUTHOR("Philip Pokorny