19431996fSJuerg Haefliger /* 29431996fSJuerg Haefliger * dme1737.c - driver for the SMSC DME1737 and Asus A8000 Super-I/O chips 39431996fSJuerg Haefliger * integrated hardware monitoring features. 49431996fSJuerg Haefliger * Copyright (c) 2007 Juerg Haefliger <juergh@gmail.com> 59431996fSJuerg Haefliger * 69431996fSJuerg Haefliger * This driver is based on the LM85 driver. The hardware monitoring 79431996fSJuerg Haefliger * capabilities of the DME1737 are very similar to the LM85 with some 89431996fSJuerg Haefliger * additional features. Even though the DME1737 is a Super-I/O chip, the 99431996fSJuerg Haefliger * hardware monitoring registers are only accessible via SMBus. 109431996fSJuerg Haefliger * 119431996fSJuerg Haefliger * This program is free software; you can redistribute it and/or modify 129431996fSJuerg Haefliger * it under the terms of the GNU General Public License as published by 139431996fSJuerg Haefliger * the Free Software Foundation; either version 2 of the License, or 149431996fSJuerg Haefliger * (at your option) any later version. 159431996fSJuerg Haefliger * 169431996fSJuerg Haefliger * This program is distributed in the hope that it will be useful, 179431996fSJuerg Haefliger * but WITHOUT ANY WARRANTY; without even the implied warranty of 189431996fSJuerg Haefliger * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 199431996fSJuerg Haefliger * GNU General Public License for more details. 209431996fSJuerg Haefliger * 219431996fSJuerg Haefliger * You should have received a copy of the GNU General Public License 229431996fSJuerg Haefliger * along with this program; if not, write to the Free Software 239431996fSJuerg Haefliger * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 249431996fSJuerg Haefliger */ 259431996fSJuerg Haefliger 269431996fSJuerg Haefliger #include <linux/module.h> 279431996fSJuerg Haefliger #include <linux/init.h> 289431996fSJuerg Haefliger #include <linux/slab.h> 299431996fSJuerg Haefliger #include <linux/jiffies.h> 309431996fSJuerg Haefliger #include <linux/i2c.h> 319431996fSJuerg Haefliger #include <linux/hwmon.h> 329431996fSJuerg Haefliger #include <linux/hwmon-sysfs.h> 339431996fSJuerg Haefliger #include <linux/hwmon-vid.h> 349431996fSJuerg Haefliger #include <linux/err.h> 359431996fSJuerg Haefliger #include <linux/mutex.h> 369431996fSJuerg Haefliger #include <asm/io.h> 379431996fSJuerg Haefliger 389431996fSJuerg Haefliger /* Module load parameters */ 399431996fSJuerg Haefliger static int force_start; 409431996fSJuerg Haefliger module_param(force_start, bool, 0); 419431996fSJuerg Haefliger MODULE_PARM_DESC(force_start, "Force the chip to start monitoring inputs"); 429431996fSJuerg Haefliger 439431996fSJuerg Haefliger /* Addresses to scan */ 449431996fSJuerg Haefliger static unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END}; 459431996fSJuerg Haefliger 469431996fSJuerg Haefliger /* Insmod parameters */ 479431996fSJuerg Haefliger I2C_CLIENT_INSMOD_1(dme1737); 489431996fSJuerg Haefliger 499431996fSJuerg Haefliger /* --------------------------------------------------------------------- 509431996fSJuerg Haefliger * Registers 519431996fSJuerg Haefliger * 529431996fSJuerg Haefliger * The sensors are defined as follows: 539431996fSJuerg Haefliger * 549431996fSJuerg Haefliger * Voltages Temperatures 559431996fSJuerg Haefliger * -------- ------------ 569431996fSJuerg Haefliger * in0 +5VTR (+5V stdby) temp1 Remote diode 1 579431996fSJuerg Haefliger * in1 Vccp (proc core) temp2 Internal temp 589431996fSJuerg Haefliger * in2 VCC (internal +3.3V) temp3 Remote diode 2 599431996fSJuerg Haefliger * in3 +5V 609431996fSJuerg Haefliger * in4 +12V 619431996fSJuerg Haefliger * in5 VTR (+3.3V stby) 629431996fSJuerg Haefliger * in6 Vbat 639431996fSJuerg Haefliger * 649431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 659431996fSJuerg Haefliger 669431996fSJuerg Haefliger /* Voltages (in) numbered 0-6 (ix) */ 679431996fSJuerg Haefliger #define DME1737_REG_IN(ix) ((ix) < 5 ? 0x20 + (ix) \ 689431996fSJuerg Haefliger : 0x94 + (ix)) 699431996fSJuerg Haefliger #define DME1737_REG_IN_MIN(ix) ((ix) < 5 ? 0x44 + (ix) * 2 \ 709431996fSJuerg Haefliger : 0x91 + (ix) * 2) 719431996fSJuerg Haefliger #define DME1737_REG_IN_MAX(ix) ((ix) < 5 ? 0x45 + (ix) * 2 \ 729431996fSJuerg Haefliger : 0x92 + (ix) * 2) 739431996fSJuerg Haefliger 749431996fSJuerg Haefliger /* Temperatures (temp) numbered 0-2 (ix) */ 759431996fSJuerg Haefliger #define DME1737_REG_TEMP(ix) (0x25 + (ix)) 769431996fSJuerg Haefliger #define DME1737_REG_TEMP_MIN(ix) (0x4e + (ix) * 2) 779431996fSJuerg Haefliger #define DME1737_REG_TEMP_MAX(ix) (0x4f + (ix) * 2) 789431996fSJuerg Haefliger #define DME1737_REG_TEMP_OFFSET(ix) ((ix) == 0 ? 0x1f \ 799431996fSJuerg Haefliger : 0x1c + (ix)) 809431996fSJuerg Haefliger 819431996fSJuerg Haefliger /* Voltage and temperature LSBs 829431996fSJuerg Haefliger * The LSBs (4 bits each) are stored in 5 registers with the following layouts: 839431996fSJuerg Haefliger * IN_TEMP_LSB(0) = [in5, in6] 849431996fSJuerg Haefliger * IN_TEMP_LSB(1) = [temp3, temp1] 859431996fSJuerg Haefliger * IN_TEMP_LSB(2) = [in4, temp2] 869431996fSJuerg Haefliger * IN_TEMP_LSB(3) = [in3, in0] 879431996fSJuerg Haefliger * IN_TEMP_LSB(4) = [in2, in1] */ 889431996fSJuerg Haefliger #define DME1737_REG_IN_TEMP_LSB(ix) (0x84 + (ix)) 899431996fSJuerg Haefliger static const u8 DME1737_REG_IN_LSB[] = {3, 4, 4, 3, 2, 0, 0}; 909431996fSJuerg Haefliger static const u8 DME1737_REG_IN_LSB_SHL[] = {4, 4, 0, 0, 0, 0, 4}; 919431996fSJuerg Haefliger static const u8 DME1737_REG_TEMP_LSB[] = {1, 2, 1}; 929431996fSJuerg Haefliger static const u8 DME1737_REG_TEMP_LSB_SHL[] = {4, 4, 0}; 939431996fSJuerg Haefliger 949431996fSJuerg Haefliger /* Fans numbered 0-5 (ix) */ 959431996fSJuerg Haefliger #define DME1737_REG_FAN(ix) ((ix) < 4 ? 0x28 + (ix) * 2 \ 969431996fSJuerg Haefliger : 0xa1 + (ix) * 2) 979431996fSJuerg Haefliger #define DME1737_REG_FAN_MIN(ix) ((ix) < 4 ? 0x54 + (ix) * 2 \ 989431996fSJuerg Haefliger : 0xa5 + (ix) * 2) 999431996fSJuerg Haefliger #define DME1737_REG_FAN_OPT(ix) ((ix) < 4 ? 0x90 + (ix) \ 1009431996fSJuerg Haefliger : 0xb2 + (ix)) 1019431996fSJuerg Haefliger #define DME1737_REG_FAN_MAX(ix) (0xb4 + (ix)) /* only for fan[4-5] */ 1029431996fSJuerg Haefliger 1039431996fSJuerg Haefliger /* PWMs numbered 0-2, 4-5 (ix) */ 1049431996fSJuerg Haefliger #define DME1737_REG_PWM(ix) ((ix) < 3 ? 0x30 + (ix) \ 1059431996fSJuerg Haefliger : 0xa1 + (ix)) 1069431996fSJuerg Haefliger #define DME1737_REG_PWM_CONFIG(ix) (0x5c + (ix)) /* only for pwm[0-2] */ 1079431996fSJuerg Haefliger #define DME1737_REG_PWM_MIN(ix) (0x64 + (ix)) /* only for pwm[0-2] */ 1089431996fSJuerg Haefliger #define DME1737_REG_PWM_FREQ(ix) ((ix) < 3 ? 0x5f + (ix) \ 1099431996fSJuerg Haefliger : 0xa3 + (ix)) 1109431996fSJuerg Haefliger /* The layout of the ramp rate registers is different from the other pwm 1119431996fSJuerg Haefliger * registers. The bits for the 3 PWMs are stored in 2 registers: 1129431996fSJuerg Haefliger * PWM_RR(0) = [OFF3, OFF2, OFF1, RES, RR1E, RR1-2, RR1-1, RR1-0] 1139431996fSJuerg Haefliger * PWM_RR(1) = [RR2E, RR2-2, RR2-1, RR2-0, RR3E, RR3-2, RR3-1, RR3-0] */ 1149431996fSJuerg Haefliger #define DME1737_REG_PWM_RR(ix) (0x62 + (ix)) /* only for pwm[0-2] */ 1159431996fSJuerg Haefliger 1169431996fSJuerg Haefliger /* Thermal zones 0-2 */ 1179431996fSJuerg Haefliger #define DME1737_REG_ZONE_LOW(ix) (0x67 + (ix)) 1189431996fSJuerg Haefliger #define DME1737_REG_ZONE_ABS(ix) (0x6a + (ix)) 1199431996fSJuerg Haefliger /* The layout of the hysteresis registers is different from the other zone 1209431996fSJuerg Haefliger * registers. The bits for the 3 zones are stored in 2 registers: 1219431996fSJuerg Haefliger * ZONE_HYST(0) = [H1-3, H1-2, H1-1, H1-0, H2-3, H2-2, H2-1, H2-0] 1229431996fSJuerg Haefliger * ZONE_HYST(1) = [H3-3, H3-2, H3-1, H3-0, RES, RES, RES, RES] */ 1239431996fSJuerg Haefliger #define DME1737_REG_ZONE_HYST(ix) (0x6d + (ix)) 1249431996fSJuerg Haefliger 1259431996fSJuerg Haefliger /* Alarm registers and bit mapping 1269431996fSJuerg Haefliger * The 3 8-bit alarm registers will be concatenated to a single 32-bit 1279431996fSJuerg Haefliger * alarm value [0, ALARM3, ALARM2, ALARM1]. */ 1289431996fSJuerg Haefliger #define DME1737_REG_ALARM1 0x41 1299431996fSJuerg Haefliger #define DME1737_REG_ALARM2 0x42 1309431996fSJuerg Haefliger #define DME1737_REG_ALARM3 0x83 1319431996fSJuerg Haefliger static const u8 DME1737_BIT_ALARM_IN[] = {0, 1, 2, 3, 8, 16, 17}; 1329431996fSJuerg Haefliger static const u8 DME1737_BIT_ALARM_TEMP[] = {4, 5, 6}; 1339431996fSJuerg Haefliger static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23}; 1349431996fSJuerg Haefliger 1359431996fSJuerg Haefliger /* Miscellaneous registers */ 1369431996fSJuerg Haefliger #define DME1737_REG_COMPANY 0x3e 1379431996fSJuerg Haefliger #define DME1737_REG_VERSTEP 0x3f 1389431996fSJuerg Haefliger #define DME1737_REG_CONFIG 0x40 1399431996fSJuerg Haefliger #define DME1737_REG_CONFIG2 0x7f 1409431996fSJuerg Haefliger #define DME1737_REG_VID 0x43 1419431996fSJuerg Haefliger #define DME1737_REG_TACH_PWM 0x81 1429431996fSJuerg Haefliger 1439431996fSJuerg Haefliger /* --------------------------------------------------------------------- 1449431996fSJuerg Haefliger * Misc defines 1459431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 1469431996fSJuerg Haefliger 1479431996fSJuerg Haefliger /* Chip identification */ 1489431996fSJuerg Haefliger #define DME1737_COMPANY_SMSC 0x5c 1499431996fSJuerg Haefliger #define DME1737_VERSTEP 0x88 1509431996fSJuerg Haefliger #define DME1737_VERSTEP_MASK 0xf8 1519431996fSJuerg Haefliger 1529431996fSJuerg Haefliger /* --------------------------------------------------------------------- 1539431996fSJuerg Haefliger * Data structures and manipulation thereof 1549431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 1559431996fSJuerg Haefliger 1569431996fSJuerg Haefliger struct dme1737_data { 1579431996fSJuerg Haefliger struct i2c_client client; 158*1beeffe4STony Jones struct device *hwmon_dev; 1599431996fSJuerg Haefliger 1609431996fSJuerg Haefliger struct mutex update_lock; 1619431996fSJuerg Haefliger int valid; /* !=0 if following fields are valid */ 1629431996fSJuerg Haefliger unsigned long last_update; /* in jiffies */ 1639431996fSJuerg Haefliger unsigned long last_vbat; /* in jiffies */ 1649431996fSJuerg Haefliger 1659431996fSJuerg Haefliger u8 vid; 1669431996fSJuerg Haefliger u8 pwm_rr_en; 1679431996fSJuerg Haefliger u8 has_pwm; 1689431996fSJuerg Haefliger u8 has_fan; 1699431996fSJuerg Haefliger 1709431996fSJuerg Haefliger /* Register values */ 1719431996fSJuerg Haefliger u16 in[7]; 1729431996fSJuerg Haefliger u8 in_min[7]; 1739431996fSJuerg Haefliger u8 in_max[7]; 1749431996fSJuerg Haefliger s16 temp[3]; 1759431996fSJuerg Haefliger s8 temp_min[3]; 1769431996fSJuerg Haefliger s8 temp_max[3]; 1779431996fSJuerg Haefliger s8 temp_offset[3]; 1789431996fSJuerg Haefliger u8 config; 1799431996fSJuerg Haefliger u8 config2; 1809431996fSJuerg Haefliger u8 vrm; 1819431996fSJuerg Haefliger u16 fan[6]; 1829431996fSJuerg Haefliger u16 fan_min[6]; 1839431996fSJuerg Haefliger u8 fan_max[2]; 1849431996fSJuerg Haefliger u8 fan_opt[6]; 1859431996fSJuerg Haefliger u8 pwm[6]; 1869431996fSJuerg Haefliger u8 pwm_min[3]; 1879431996fSJuerg Haefliger u8 pwm_config[3]; 1889431996fSJuerg Haefliger u8 pwm_acz[3]; 1899431996fSJuerg Haefliger u8 pwm_freq[6]; 1909431996fSJuerg Haefliger u8 pwm_rr[2]; 1919431996fSJuerg Haefliger u8 zone_low[3]; 1929431996fSJuerg Haefliger u8 zone_abs[3]; 1939431996fSJuerg Haefliger u8 zone_hyst[2]; 1949431996fSJuerg Haefliger u32 alarms; 1959431996fSJuerg Haefliger }; 1969431996fSJuerg Haefliger 1979431996fSJuerg Haefliger /* Nominal voltage values */ 1989431996fSJuerg Haefliger static const int IN_NOMINAL[] = {5000, 2250, 3300, 5000, 12000, 3300, 3300}; 1999431996fSJuerg Haefliger 2009431996fSJuerg Haefliger /* Voltage input 2019431996fSJuerg Haefliger * Voltage inputs have 16 bits resolution, limit values have 8 bits 2029431996fSJuerg Haefliger * resolution. */ 2039431996fSJuerg Haefliger static inline int IN_FROM_REG(int reg, int ix, int res) 2049431996fSJuerg Haefliger { 2059431996fSJuerg Haefliger return (reg * IN_NOMINAL[ix] + (3 << (res - 3))) / (3 << (res - 2)); 2069431996fSJuerg Haefliger } 2079431996fSJuerg Haefliger 2089431996fSJuerg Haefliger static inline int IN_TO_REG(int val, int ix) 2099431996fSJuerg Haefliger { 2109431996fSJuerg Haefliger return SENSORS_LIMIT((val * 192 + IN_NOMINAL[ix] / 2) / 2119431996fSJuerg Haefliger IN_NOMINAL[ix], 0, 255); 2129431996fSJuerg Haefliger } 2139431996fSJuerg Haefliger 2149431996fSJuerg Haefliger /* Temperature input 2159431996fSJuerg Haefliger * The register values represent temperatures in 2's complement notation from 2169431996fSJuerg Haefliger * -127 degrees C to +127 degrees C. Temp inputs have 16 bits resolution, limit 2179431996fSJuerg Haefliger * values have 8 bits resolution. */ 2189431996fSJuerg Haefliger static inline int TEMP_FROM_REG(int reg, int res) 2199431996fSJuerg Haefliger { 2209431996fSJuerg Haefliger return (reg * 1000) >> (res - 8); 2219431996fSJuerg Haefliger } 2229431996fSJuerg Haefliger 2239431996fSJuerg Haefliger static inline int TEMP_TO_REG(int val) 2249431996fSJuerg Haefliger { 2259431996fSJuerg Haefliger return SENSORS_LIMIT((val < 0 ? val - 500 : val + 500) / 1000, 2269431996fSJuerg Haefliger -128, 127); 2279431996fSJuerg Haefliger } 2289431996fSJuerg Haefliger 2299431996fSJuerg Haefliger /* Temperature range */ 2309431996fSJuerg Haefliger static const int TEMP_RANGE[] = {2000, 2500, 3333, 4000, 5000, 6666, 8000, 2319431996fSJuerg Haefliger 10000, 13333, 16000, 20000, 26666, 32000, 2329431996fSJuerg Haefliger 40000, 53333, 80000}; 2339431996fSJuerg Haefliger 2349431996fSJuerg Haefliger static inline int TEMP_RANGE_FROM_REG(int reg) 2359431996fSJuerg Haefliger { 2369431996fSJuerg Haefliger return TEMP_RANGE[(reg >> 4) & 0x0f]; 2379431996fSJuerg Haefliger } 2389431996fSJuerg Haefliger 2399431996fSJuerg Haefliger static int TEMP_RANGE_TO_REG(int val, int reg) 2409431996fSJuerg Haefliger { 2419431996fSJuerg Haefliger int i; 2429431996fSJuerg Haefliger 2439431996fSJuerg Haefliger for (i = 15; i > 0; i--) { 2449431996fSJuerg Haefliger if (val > (TEMP_RANGE[i] + TEMP_RANGE[i - 1] + 1) / 2) { 2459431996fSJuerg Haefliger break; 2469431996fSJuerg Haefliger } 2479431996fSJuerg Haefliger } 2489431996fSJuerg Haefliger 2499431996fSJuerg Haefliger return (reg & 0x0f) | (i << 4); 2509431996fSJuerg Haefliger } 2519431996fSJuerg Haefliger 2529431996fSJuerg Haefliger /* Temperature hysteresis 2539431996fSJuerg Haefliger * Register layout: 2549431996fSJuerg Haefliger * reg[0] = [H1-3, H1-2, H1-1, H1-0, H2-3, H2-2, H2-1, H2-0] 2559431996fSJuerg Haefliger * reg[1] = [H3-3, H3-2, H3-1, H3-0, xxxx, xxxx, xxxx, xxxx] */ 2569431996fSJuerg Haefliger static inline int TEMP_HYST_FROM_REG(int reg, int ix) 2579431996fSJuerg Haefliger { 2589431996fSJuerg Haefliger return (((ix == 1) ? reg : reg >> 4) & 0x0f) * 1000; 2599431996fSJuerg Haefliger } 2609431996fSJuerg Haefliger 2619431996fSJuerg Haefliger static inline int TEMP_HYST_TO_REG(int val, int ix, int reg) 2629431996fSJuerg Haefliger { 2639431996fSJuerg Haefliger int hyst = SENSORS_LIMIT((val + 500) / 1000, 0, 15); 2649431996fSJuerg Haefliger 2659431996fSJuerg Haefliger return (ix == 1) ? (reg & 0xf0) | hyst : (reg & 0x0f) | (hyst << 4); 2669431996fSJuerg Haefliger } 2679431996fSJuerg Haefliger 2689431996fSJuerg Haefliger /* Fan input RPM */ 2699431996fSJuerg Haefliger static inline int FAN_FROM_REG(int reg, int tpc) 2709431996fSJuerg Haefliger { 2719431996fSJuerg Haefliger return (reg == 0 || reg == 0xffff) ? 0 : 2729431996fSJuerg Haefliger (tpc == 0) ? 90000 * 60 / reg : tpc * reg; 2739431996fSJuerg Haefliger } 2749431996fSJuerg Haefliger 2759431996fSJuerg Haefliger static inline int FAN_TO_REG(int val, int tpc) 2769431996fSJuerg Haefliger { 2779431996fSJuerg Haefliger return SENSORS_LIMIT((tpc == 0) ? 90000 * 60 / val : val / tpc, 2789431996fSJuerg Haefliger 0, 0xffff); 2799431996fSJuerg Haefliger } 2809431996fSJuerg Haefliger 2819431996fSJuerg Haefliger /* Fan TPC (tach pulse count) 2829431996fSJuerg Haefliger * Converts a register value to a TPC multiplier or returns 0 if the tachometer 2839431996fSJuerg Haefliger * is configured in legacy (non-tpc) mode */ 2849431996fSJuerg Haefliger static inline int FAN_TPC_FROM_REG(int reg) 2859431996fSJuerg Haefliger { 2869431996fSJuerg Haefliger return (reg & 0x20) ? 0 : 60 >> (reg & 0x03); 2879431996fSJuerg Haefliger } 2889431996fSJuerg Haefliger 2899431996fSJuerg Haefliger /* Fan type 2909431996fSJuerg Haefliger * The type of a fan is expressed in number of pulses-per-revolution that it 2919431996fSJuerg Haefliger * emits */ 2929431996fSJuerg Haefliger static inline int FAN_TYPE_FROM_REG(int reg) 2939431996fSJuerg Haefliger { 2949431996fSJuerg Haefliger int edge = (reg >> 1) & 0x03; 2959431996fSJuerg Haefliger 2969431996fSJuerg Haefliger return (edge > 0) ? 1 << (edge - 1) : 0; 2979431996fSJuerg Haefliger } 2989431996fSJuerg Haefliger 2999431996fSJuerg Haefliger static inline int FAN_TYPE_TO_REG(int val, int reg) 3009431996fSJuerg Haefliger { 3019431996fSJuerg Haefliger int edge = (val == 4) ? 3 : val; 3029431996fSJuerg Haefliger 3039431996fSJuerg Haefliger return (reg & 0xf9) | (edge << 1); 3049431996fSJuerg Haefliger } 3059431996fSJuerg Haefliger 3069431996fSJuerg Haefliger /* Fan max RPM */ 3079431996fSJuerg Haefliger static const int FAN_MAX[] = {0x54, 0x38, 0x2a, 0x21, 0x1c, 0x18, 0x15, 0x12, 3089431996fSJuerg Haefliger 0x11, 0x0f, 0x0e}; 3099431996fSJuerg Haefliger 3109431996fSJuerg Haefliger static int FAN_MAX_FROM_REG(int reg) 3119431996fSJuerg Haefliger { 3129431996fSJuerg Haefliger int i; 3139431996fSJuerg Haefliger 3149431996fSJuerg Haefliger for (i = 10; i > 0; i--) { 3159431996fSJuerg Haefliger if (reg == FAN_MAX[i]) { 3169431996fSJuerg Haefliger break; 3179431996fSJuerg Haefliger } 3189431996fSJuerg Haefliger } 3199431996fSJuerg Haefliger 3209431996fSJuerg Haefliger return 1000 + i * 500; 3219431996fSJuerg Haefliger } 3229431996fSJuerg Haefliger 3239431996fSJuerg Haefliger static int FAN_MAX_TO_REG(int val) 3249431996fSJuerg Haefliger { 3259431996fSJuerg Haefliger int i; 3269431996fSJuerg Haefliger 3279431996fSJuerg Haefliger for (i = 10; i > 0; i--) { 3289431996fSJuerg Haefliger if (val > (1000 + (i - 1) * 500)) { 3299431996fSJuerg Haefliger break; 3309431996fSJuerg Haefliger } 3319431996fSJuerg Haefliger } 3329431996fSJuerg Haefliger 3339431996fSJuerg Haefliger return FAN_MAX[i]; 3349431996fSJuerg Haefliger } 3359431996fSJuerg Haefliger 3369431996fSJuerg Haefliger /* PWM enable 3379431996fSJuerg Haefliger * Register to enable mapping: 3389431996fSJuerg Haefliger * 000: 2 fan on zone 1 auto 3399431996fSJuerg Haefliger * 001: 2 fan on zone 2 auto 3409431996fSJuerg Haefliger * 010: 2 fan on zone 3 auto 3419431996fSJuerg Haefliger * 011: 0 fan full on 3429431996fSJuerg Haefliger * 100: -1 fan disabled 3439431996fSJuerg Haefliger * 101: 2 fan on hottest of zones 2,3 auto 3449431996fSJuerg Haefliger * 110: 2 fan on hottest of zones 1,2,3 auto 3459431996fSJuerg Haefliger * 111: 1 fan in manual mode */ 3469431996fSJuerg Haefliger static inline int PWM_EN_FROM_REG(int reg) 3479431996fSJuerg Haefliger { 3489431996fSJuerg Haefliger static const int en[] = {2, 2, 2, 0, -1, 2, 2, 1}; 3499431996fSJuerg Haefliger 3509431996fSJuerg Haefliger return en[(reg >> 5) & 0x07]; 3519431996fSJuerg Haefliger } 3529431996fSJuerg Haefliger 3539431996fSJuerg Haefliger static inline int PWM_EN_TO_REG(int val, int reg) 3549431996fSJuerg Haefliger { 3559431996fSJuerg Haefliger int en = (val == 1) ? 7 : 3; 3569431996fSJuerg Haefliger 3579431996fSJuerg Haefliger return (reg & 0x1f) | ((en & 0x07) << 5); 3589431996fSJuerg Haefliger } 3599431996fSJuerg Haefliger 3609431996fSJuerg Haefliger /* PWM auto channels zone 3619431996fSJuerg Haefliger * Register to auto channels zone mapping (ACZ is a bitfield with bit x 3629431996fSJuerg Haefliger * corresponding to zone x+1): 3639431996fSJuerg Haefliger * 000: 001 fan on zone 1 auto 3649431996fSJuerg Haefliger * 001: 010 fan on zone 2 auto 3659431996fSJuerg Haefliger * 010: 100 fan on zone 3 auto 3669431996fSJuerg Haefliger * 011: 000 fan full on 3679431996fSJuerg Haefliger * 100: 000 fan disabled 3689431996fSJuerg Haefliger * 101: 110 fan on hottest of zones 2,3 auto 3699431996fSJuerg Haefliger * 110: 111 fan on hottest of zones 1,2,3 auto 3709431996fSJuerg Haefliger * 111: 000 fan in manual mode */ 3719431996fSJuerg Haefliger static inline int PWM_ACZ_FROM_REG(int reg) 3729431996fSJuerg Haefliger { 3739431996fSJuerg Haefliger static const int acz[] = {1, 2, 4, 0, 0, 6, 7, 0}; 3749431996fSJuerg Haefliger 3759431996fSJuerg Haefliger return acz[(reg >> 5) & 0x07]; 3769431996fSJuerg Haefliger } 3779431996fSJuerg Haefliger 3789431996fSJuerg Haefliger static inline int PWM_ACZ_TO_REG(int val, int reg) 3799431996fSJuerg Haefliger { 3809431996fSJuerg Haefliger int acz = (val == 4) ? 2 : val - 1; 3819431996fSJuerg Haefliger 3829431996fSJuerg Haefliger return (reg & 0x1f) | ((acz & 0x07) << 5); 3839431996fSJuerg Haefliger } 3849431996fSJuerg Haefliger 3859431996fSJuerg Haefliger /* PWM frequency */ 3869431996fSJuerg Haefliger static const int PWM_FREQ[] = {11, 15, 22, 29, 35, 44, 59, 88, 3879431996fSJuerg Haefliger 15000, 20000, 30000, 25000, 0, 0, 0, 0}; 3889431996fSJuerg Haefliger 3899431996fSJuerg Haefliger static inline int PWM_FREQ_FROM_REG(int reg) 3909431996fSJuerg Haefliger { 3919431996fSJuerg Haefliger return PWM_FREQ[reg & 0x0f]; 3929431996fSJuerg Haefliger } 3939431996fSJuerg Haefliger 3949431996fSJuerg Haefliger static int PWM_FREQ_TO_REG(int val, int reg) 3959431996fSJuerg Haefliger { 3969431996fSJuerg Haefliger int i; 3979431996fSJuerg Haefliger 3989431996fSJuerg Haefliger /* the first two cases are special - stupid chip design! */ 3999431996fSJuerg Haefliger if (val > 27500) { 4009431996fSJuerg Haefliger i = 10; 4019431996fSJuerg Haefliger } else if (val > 22500) { 4029431996fSJuerg Haefliger i = 11; 4039431996fSJuerg Haefliger } else { 4049431996fSJuerg Haefliger for (i = 9; i > 0; i--) { 4059431996fSJuerg Haefliger if (val > (PWM_FREQ[i] + PWM_FREQ[i - 1] + 1) / 2) { 4069431996fSJuerg Haefliger break; 4079431996fSJuerg Haefliger } 4089431996fSJuerg Haefliger } 4099431996fSJuerg Haefliger } 4109431996fSJuerg Haefliger 4119431996fSJuerg Haefliger return (reg & 0xf0) | i; 4129431996fSJuerg Haefliger } 4139431996fSJuerg Haefliger 4149431996fSJuerg Haefliger /* PWM ramp rate 4159431996fSJuerg Haefliger * Register layout: 4169431996fSJuerg Haefliger * reg[0] = [OFF3, OFF2, OFF1, RES, RR1-E, RR1-2, RR1-1, RR1-0] 4179431996fSJuerg Haefliger * reg[1] = [RR2-E, RR2-2, RR2-1, RR2-0, RR3-E, RR3-2, RR3-1, RR3-0] */ 4189431996fSJuerg Haefliger static const u8 PWM_RR[] = {206, 104, 69, 41, 26, 18, 10, 5}; 4199431996fSJuerg Haefliger 4209431996fSJuerg Haefliger static inline int PWM_RR_FROM_REG(int reg, int ix) 4219431996fSJuerg Haefliger { 4229431996fSJuerg Haefliger int rr = (ix == 1) ? reg >> 4 : reg; 4239431996fSJuerg Haefliger 4249431996fSJuerg Haefliger return (rr & 0x08) ? PWM_RR[rr & 0x07] : 0; 4259431996fSJuerg Haefliger } 4269431996fSJuerg Haefliger 4279431996fSJuerg Haefliger static int PWM_RR_TO_REG(int val, int ix, int reg) 4289431996fSJuerg Haefliger { 4299431996fSJuerg Haefliger int i; 4309431996fSJuerg Haefliger 4319431996fSJuerg Haefliger for (i = 0; i < 7; i++) { 4329431996fSJuerg Haefliger if (val > (PWM_RR[i] + PWM_RR[i + 1] + 1) / 2) { 4339431996fSJuerg Haefliger break; 4349431996fSJuerg Haefliger } 4359431996fSJuerg Haefliger } 4369431996fSJuerg Haefliger 4379431996fSJuerg Haefliger return (ix == 1) ? (reg & 0x8f) | (i << 4) : (reg & 0xf8) | i; 4389431996fSJuerg Haefliger } 4399431996fSJuerg Haefliger 4409431996fSJuerg Haefliger /* PWM ramp rate enable */ 4419431996fSJuerg Haefliger static inline int PWM_RR_EN_FROM_REG(int reg, int ix) 4429431996fSJuerg Haefliger { 4439431996fSJuerg Haefliger return PWM_RR_FROM_REG(reg, ix) ? 1 : 0; 4449431996fSJuerg Haefliger } 4459431996fSJuerg Haefliger 4469431996fSJuerg Haefliger static inline int PWM_RR_EN_TO_REG(int val, int ix, int reg) 4479431996fSJuerg Haefliger { 4489431996fSJuerg Haefliger int en = (ix == 1) ? 0x80 : 0x08; 4499431996fSJuerg Haefliger 4509431996fSJuerg Haefliger return val ? reg | en : reg & ~en; 4519431996fSJuerg Haefliger } 4529431996fSJuerg Haefliger 4539431996fSJuerg Haefliger /* PWM min/off 4549431996fSJuerg Haefliger * The PWM min/off bits are part of the PMW ramp rate register 0 (see above for 4559431996fSJuerg Haefliger * the register layout). */ 4569431996fSJuerg Haefliger static inline int PWM_OFF_FROM_REG(int reg, int ix) 4579431996fSJuerg Haefliger { 4589431996fSJuerg Haefliger return (reg >> (ix + 5)) & 0x01; 4599431996fSJuerg Haefliger } 4609431996fSJuerg Haefliger 4619431996fSJuerg Haefliger static inline int PWM_OFF_TO_REG(int val, int ix, int reg) 4629431996fSJuerg Haefliger { 4639431996fSJuerg Haefliger return (reg & ~(1 << (ix + 5))) | ((val & 0x01) << (ix + 5)); 4649431996fSJuerg Haefliger } 4659431996fSJuerg Haefliger 4669431996fSJuerg Haefliger /* --------------------------------------------------------------------- 4679431996fSJuerg Haefliger * Device I/O access 4689431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 4699431996fSJuerg Haefliger 4709431996fSJuerg Haefliger static u8 dme1737_read(struct i2c_client *client, u8 reg) 4719431996fSJuerg Haefliger { 4729431996fSJuerg Haefliger s32 val = i2c_smbus_read_byte_data(client, reg); 4739431996fSJuerg Haefliger 4749431996fSJuerg Haefliger if (val < 0) { 4759431996fSJuerg Haefliger dev_warn(&client->dev, "Read from register 0x%02x failed! " 4769431996fSJuerg Haefliger "Please report to the driver maintainer.\n", reg); 4779431996fSJuerg Haefliger } 4789431996fSJuerg Haefliger 4799431996fSJuerg Haefliger return val; 4809431996fSJuerg Haefliger } 4819431996fSJuerg Haefliger 4829431996fSJuerg Haefliger static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 value) 4839431996fSJuerg Haefliger { 4849431996fSJuerg Haefliger s32 res = i2c_smbus_write_byte_data(client, reg, value); 4859431996fSJuerg Haefliger 4869431996fSJuerg Haefliger if (res < 0) { 4879431996fSJuerg Haefliger dev_warn(&client->dev, "Write to register 0x%02x failed! " 4889431996fSJuerg Haefliger "Please report to the driver maintainer.\n", reg); 4899431996fSJuerg Haefliger } 4909431996fSJuerg Haefliger 4919431996fSJuerg Haefliger return res; 4929431996fSJuerg Haefliger } 4939431996fSJuerg Haefliger 4949431996fSJuerg Haefliger static struct dme1737_data *dme1737_update_device(struct device *dev) 4959431996fSJuerg Haefliger { 4969431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 4979431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 4989431996fSJuerg Haefliger int ix; 4999431996fSJuerg Haefliger u8 lsb[5]; 5009431996fSJuerg Haefliger 5019431996fSJuerg Haefliger mutex_lock(&data->update_lock); 5029431996fSJuerg Haefliger 5039431996fSJuerg Haefliger /* Enable a Vbat monitoring cycle every 10 mins */ 5049431996fSJuerg Haefliger if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) { 5059431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_CONFIG, dme1737_read(client, 5069431996fSJuerg Haefliger DME1737_REG_CONFIG) | 0x10); 5079431996fSJuerg Haefliger data->last_vbat = jiffies; 5089431996fSJuerg Haefliger } 5099431996fSJuerg Haefliger 5109431996fSJuerg Haefliger /* Sample register contents every 1 sec */ 5119431996fSJuerg Haefliger if (time_after(jiffies, data->last_update + HZ) || !data->valid) { 5129431996fSJuerg Haefliger data->vid = dme1737_read(client, DME1737_REG_VID) & 0x3f; 5139431996fSJuerg Haefliger 5149431996fSJuerg Haefliger /* In (voltage) registers */ 5159431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { 5169431996fSJuerg Haefliger /* Voltage inputs are stored as 16 bit values even 5179431996fSJuerg Haefliger * though they have only 12 bits resolution. This is 5189431996fSJuerg Haefliger * to make it consistent with the temp inputs. */ 5199431996fSJuerg Haefliger data->in[ix] = dme1737_read(client, 5209431996fSJuerg Haefliger DME1737_REG_IN(ix)) << 8; 5219431996fSJuerg Haefliger data->in_min[ix] = dme1737_read(client, 5229431996fSJuerg Haefliger DME1737_REG_IN_MIN(ix)); 5239431996fSJuerg Haefliger data->in_max[ix] = dme1737_read(client, 5249431996fSJuerg Haefliger DME1737_REG_IN_MAX(ix)); 5259431996fSJuerg Haefliger } 5269431996fSJuerg Haefliger 5279431996fSJuerg Haefliger /* Temp registers */ 5289431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { 5299431996fSJuerg Haefliger /* Temp inputs are stored as 16 bit values even 5309431996fSJuerg Haefliger * though they have only 12 bits resolution. This is 5319431996fSJuerg Haefliger * to take advantage of implicit conversions between 5329431996fSJuerg Haefliger * register values (2's complement) and temp values 5339431996fSJuerg Haefliger * (signed decimal). */ 5349431996fSJuerg Haefliger data->temp[ix] = dme1737_read(client, 5359431996fSJuerg Haefliger DME1737_REG_TEMP(ix)) << 8; 5369431996fSJuerg Haefliger data->temp_min[ix] = dme1737_read(client, 5379431996fSJuerg Haefliger DME1737_REG_TEMP_MIN(ix)); 5389431996fSJuerg Haefliger data->temp_max[ix] = dme1737_read(client, 5399431996fSJuerg Haefliger DME1737_REG_TEMP_MAX(ix)); 5409431996fSJuerg Haefliger data->temp_offset[ix] = dme1737_read(client, 5419431996fSJuerg Haefliger DME1737_REG_TEMP_OFFSET(ix)); 5429431996fSJuerg Haefliger } 5439431996fSJuerg Haefliger 5449431996fSJuerg Haefliger /* In and temp LSB registers 5459431996fSJuerg Haefliger * The LSBs are latched when the MSBs are read, so the order in 5469431996fSJuerg Haefliger * which the registers are read (MSB first, then LSB) is 5479431996fSJuerg Haefliger * important! */ 5489431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) { 5499431996fSJuerg Haefliger lsb[ix] = dme1737_read(client, 5509431996fSJuerg Haefliger DME1737_REG_IN_TEMP_LSB(ix)); 5519431996fSJuerg Haefliger } 5529431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { 5539431996fSJuerg Haefliger data->in[ix] |= (lsb[DME1737_REG_IN_LSB[ix]] << 5549431996fSJuerg Haefliger DME1737_REG_IN_LSB_SHL[ix]) & 0xf0; 5559431996fSJuerg Haefliger } 5569431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->temp); ix++) { 5579431996fSJuerg Haefliger data->temp[ix] |= (lsb[DME1737_REG_TEMP_LSB[ix]] << 5589431996fSJuerg Haefliger DME1737_REG_TEMP_LSB_SHL[ix]) & 0xf0; 5599431996fSJuerg Haefliger } 5609431996fSJuerg Haefliger 5619431996fSJuerg Haefliger /* Fan registers */ 5629431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->fan); ix++) { 5639431996fSJuerg Haefliger /* Skip reading registers if optional fans are not 5649431996fSJuerg Haefliger * present */ 5659431996fSJuerg Haefliger if (!(data->has_fan & (1 << ix))) { 5669431996fSJuerg Haefliger continue; 5679431996fSJuerg Haefliger } 5689431996fSJuerg Haefliger data->fan[ix] = dme1737_read(client, 5699431996fSJuerg Haefliger DME1737_REG_FAN(ix)); 5709431996fSJuerg Haefliger data->fan[ix] |= dme1737_read(client, 5719431996fSJuerg Haefliger DME1737_REG_FAN(ix) + 1) << 8; 5729431996fSJuerg Haefliger data->fan_min[ix] = dme1737_read(client, 5739431996fSJuerg Haefliger DME1737_REG_FAN_MIN(ix)); 5749431996fSJuerg Haefliger data->fan_min[ix] |= dme1737_read(client, 5759431996fSJuerg Haefliger DME1737_REG_FAN_MIN(ix) + 1) << 8; 5769431996fSJuerg Haefliger data->fan_opt[ix] = dme1737_read(client, 5779431996fSJuerg Haefliger DME1737_REG_FAN_OPT(ix)); 5789431996fSJuerg Haefliger /* fan_max exists only for fan[5-6] */ 5799431996fSJuerg Haefliger if (ix > 3) { 5809431996fSJuerg Haefliger data->fan_max[ix - 4] = dme1737_read(client, 5819431996fSJuerg Haefliger DME1737_REG_FAN_MAX(ix)); 5829431996fSJuerg Haefliger } 5839431996fSJuerg Haefliger } 5849431996fSJuerg Haefliger 5859431996fSJuerg Haefliger /* PWM registers */ 5869431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->pwm); ix++) { 5879431996fSJuerg Haefliger /* Skip reading registers if optional PWMs are not 5889431996fSJuerg Haefliger * present */ 5899431996fSJuerg Haefliger if (!(data->has_pwm & (1 << ix))) { 5909431996fSJuerg Haefliger continue; 5919431996fSJuerg Haefliger } 5929431996fSJuerg Haefliger data->pwm[ix] = dme1737_read(client, 5939431996fSJuerg Haefliger DME1737_REG_PWM(ix)); 5949431996fSJuerg Haefliger data->pwm_freq[ix] = dme1737_read(client, 5959431996fSJuerg Haefliger DME1737_REG_PWM_FREQ(ix)); 5969431996fSJuerg Haefliger /* pwm_config and pwm_min exist only for pwm[1-3] */ 5979431996fSJuerg Haefliger if (ix < 3) { 5989431996fSJuerg Haefliger data->pwm_config[ix] = dme1737_read(client, 5999431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix)); 6009431996fSJuerg Haefliger data->pwm_min[ix] = dme1737_read(client, 6019431996fSJuerg Haefliger DME1737_REG_PWM_MIN(ix)); 6029431996fSJuerg Haefliger } 6039431996fSJuerg Haefliger } 6049431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) { 6059431996fSJuerg Haefliger data->pwm_rr[ix] = dme1737_read(client, 6069431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix)); 6079431996fSJuerg Haefliger } 6089431996fSJuerg Haefliger 6099431996fSJuerg Haefliger /* Thermal zone registers */ 6109431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) { 6119431996fSJuerg Haefliger data->zone_low[ix] = dme1737_read(client, 6129431996fSJuerg Haefliger DME1737_REG_ZONE_LOW(ix)); 6139431996fSJuerg Haefliger data->zone_abs[ix] = dme1737_read(client, 6149431996fSJuerg Haefliger DME1737_REG_ZONE_ABS(ix)); 6159431996fSJuerg Haefliger } 6169431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) { 6179431996fSJuerg Haefliger data->zone_hyst[ix] = dme1737_read(client, 6189431996fSJuerg Haefliger DME1737_REG_ZONE_HYST(ix)); 6199431996fSJuerg Haefliger } 6209431996fSJuerg Haefliger 6219431996fSJuerg Haefliger /* Alarm registers */ 6229431996fSJuerg Haefliger data->alarms = dme1737_read(client, 6239431996fSJuerg Haefliger DME1737_REG_ALARM1); 6249431996fSJuerg Haefliger /* Bit 7 tells us if the other alarm registers are non-zero and 6259431996fSJuerg Haefliger * therefore also need to be read */ 6269431996fSJuerg Haefliger if (data->alarms & 0x80) { 6279431996fSJuerg Haefliger data->alarms |= dme1737_read(client, 6289431996fSJuerg Haefliger DME1737_REG_ALARM2) << 8; 6299431996fSJuerg Haefliger data->alarms |= dme1737_read(client, 6309431996fSJuerg Haefliger DME1737_REG_ALARM3) << 16; 6319431996fSJuerg Haefliger } 6329431996fSJuerg Haefliger 6339431996fSJuerg Haefliger data->last_update = jiffies; 6349431996fSJuerg Haefliger data->valid = 1; 6359431996fSJuerg Haefliger } 6369431996fSJuerg Haefliger 6379431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 6389431996fSJuerg Haefliger 6399431996fSJuerg Haefliger return data; 6409431996fSJuerg Haefliger } 6419431996fSJuerg Haefliger 6429431996fSJuerg Haefliger /* --------------------------------------------------------------------- 6439431996fSJuerg Haefliger * Voltage sysfs attributes 6449431996fSJuerg Haefliger * ix = [0-5] 6459431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 6469431996fSJuerg Haefliger 6479431996fSJuerg Haefliger #define SYS_IN_INPUT 0 6489431996fSJuerg Haefliger #define SYS_IN_MIN 1 6499431996fSJuerg Haefliger #define SYS_IN_MAX 2 6509431996fSJuerg Haefliger #define SYS_IN_ALARM 3 6519431996fSJuerg Haefliger 6529431996fSJuerg Haefliger static ssize_t show_in(struct device *dev, struct device_attribute *attr, 6539431996fSJuerg Haefliger char *buf) 6549431996fSJuerg Haefliger { 6559431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 6569431996fSJuerg Haefliger struct sensor_device_attribute_2 6579431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 6589431996fSJuerg Haefliger int ix = sensor_attr_2->index; 6599431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 6609431996fSJuerg Haefliger int res; 6619431996fSJuerg Haefliger 6629431996fSJuerg Haefliger switch (fn) { 6639431996fSJuerg Haefliger case SYS_IN_INPUT: 6649431996fSJuerg Haefliger res = IN_FROM_REG(data->in[ix], ix, 16); 6659431996fSJuerg Haefliger break; 6669431996fSJuerg Haefliger case SYS_IN_MIN: 6679431996fSJuerg Haefliger res = IN_FROM_REG(data->in_min[ix], ix, 8); 6689431996fSJuerg Haefliger break; 6699431996fSJuerg Haefliger case SYS_IN_MAX: 6709431996fSJuerg Haefliger res = IN_FROM_REG(data->in_max[ix], ix, 8); 6719431996fSJuerg Haefliger break; 6729431996fSJuerg Haefliger case SYS_IN_ALARM: 6739431996fSJuerg Haefliger res = (data->alarms >> DME1737_BIT_ALARM_IN[ix]) & 0x01; 6749431996fSJuerg Haefliger break; 6759431996fSJuerg Haefliger default: 6769431996fSJuerg Haefliger res = 0; 6779431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 6789431996fSJuerg Haefliger } 6799431996fSJuerg Haefliger 6809431996fSJuerg Haefliger return sprintf(buf, "%d\n", res); 6819431996fSJuerg Haefliger } 6829431996fSJuerg Haefliger 6839431996fSJuerg Haefliger static ssize_t set_in(struct device *dev, struct device_attribute *attr, 6849431996fSJuerg Haefliger const char *buf, size_t count) 6859431996fSJuerg Haefliger { 6869431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 6879431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 6889431996fSJuerg Haefliger struct sensor_device_attribute_2 6899431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 6909431996fSJuerg Haefliger int ix = sensor_attr_2->index; 6919431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 6929431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 6939431996fSJuerg Haefliger 6949431996fSJuerg Haefliger mutex_lock(&data->update_lock); 6959431996fSJuerg Haefliger switch (fn) { 6969431996fSJuerg Haefliger case SYS_IN_MIN: 6979431996fSJuerg Haefliger data->in_min[ix] = IN_TO_REG(val, ix); 6989431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_IN_MIN(ix), 6999431996fSJuerg Haefliger data->in_min[ix]); 7009431996fSJuerg Haefliger break; 7019431996fSJuerg Haefliger case SYS_IN_MAX: 7029431996fSJuerg Haefliger data->in_max[ix] = IN_TO_REG(val, ix); 7039431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_IN_MAX(ix), 7049431996fSJuerg Haefliger data->in_max[ix]); 7059431996fSJuerg Haefliger break; 7069431996fSJuerg Haefliger default: 7079431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 7089431996fSJuerg Haefliger } 7099431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 7109431996fSJuerg Haefliger 7119431996fSJuerg Haefliger return count; 7129431996fSJuerg Haefliger } 7139431996fSJuerg Haefliger 7149431996fSJuerg Haefliger /* --------------------------------------------------------------------- 7159431996fSJuerg Haefliger * Temperature sysfs attributes 7169431996fSJuerg Haefliger * ix = [0-2] 7179431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 7189431996fSJuerg Haefliger 7199431996fSJuerg Haefliger #define SYS_TEMP_INPUT 0 7209431996fSJuerg Haefliger #define SYS_TEMP_MIN 1 7219431996fSJuerg Haefliger #define SYS_TEMP_MAX 2 7229431996fSJuerg Haefliger #define SYS_TEMP_OFFSET 3 7239431996fSJuerg Haefliger #define SYS_TEMP_ALARM 4 7249431996fSJuerg Haefliger #define SYS_TEMP_FAULT 5 7259431996fSJuerg Haefliger 7269431996fSJuerg Haefliger static ssize_t show_temp(struct device *dev, struct device_attribute *attr, 7279431996fSJuerg Haefliger char *buf) 7289431996fSJuerg Haefliger { 7299431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 7309431996fSJuerg Haefliger struct sensor_device_attribute_2 7319431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 7329431996fSJuerg Haefliger int ix = sensor_attr_2->index; 7339431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 7349431996fSJuerg Haefliger int res; 7359431996fSJuerg Haefliger 7369431996fSJuerg Haefliger switch (fn) { 7379431996fSJuerg Haefliger case SYS_TEMP_INPUT: 7389431996fSJuerg Haefliger res = TEMP_FROM_REG(data->temp[ix], 16); 7399431996fSJuerg Haefliger break; 7409431996fSJuerg Haefliger case SYS_TEMP_MIN: 7419431996fSJuerg Haefliger res = TEMP_FROM_REG(data->temp_min[ix], 8); 7429431996fSJuerg Haefliger break; 7439431996fSJuerg Haefliger case SYS_TEMP_MAX: 7449431996fSJuerg Haefliger res = TEMP_FROM_REG(data->temp_max[ix], 8); 7459431996fSJuerg Haefliger break; 7469431996fSJuerg Haefliger case SYS_TEMP_OFFSET: 7479431996fSJuerg Haefliger res = TEMP_FROM_REG(data->temp_offset[ix], 8); 7489431996fSJuerg Haefliger break; 7499431996fSJuerg Haefliger case SYS_TEMP_ALARM: 7509431996fSJuerg Haefliger res = (data->alarms >> DME1737_BIT_ALARM_TEMP[ix]) & 0x01; 7519431996fSJuerg Haefliger break; 7529431996fSJuerg Haefliger case SYS_TEMP_FAULT: 753c0f31403SJuerg Haefliger res = (((u16)data->temp[ix] & 0xff00) == 0x8000); 7549431996fSJuerg Haefliger break; 7559431996fSJuerg Haefliger default: 7569431996fSJuerg Haefliger res = 0; 7579431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 7589431996fSJuerg Haefliger } 7599431996fSJuerg Haefliger 7609431996fSJuerg Haefliger return sprintf(buf, "%d\n", res); 7619431996fSJuerg Haefliger } 7629431996fSJuerg Haefliger 7639431996fSJuerg Haefliger static ssize_t set_temp(struct device *dev, struct device_attribute *attr, 7649431996fSJuerg Haefliger const char *buf, size_t count) 7659431996fSJuerg Haefliger { 7669431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 7679431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 7689431996fSJuerg Haefliger struct sensor_device_attribute_2 7699431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 7709431996fSJuerg Haefliger int ix = sensor_attr_2->index; 7719431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 7729431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 7739431996fSJuerg Haefliger 7749431996fSJuerg Haefliger mutex_lock(&data->update_lock); 7759431996fSJuerg Haefliger switch (fn) { 7769431996fSJuerg Haefliger case SYS_TEMP_MIN: 7779431996fSJuerg Haefliger data->temp_min[ix] = TEMP_TO_REG(val); 7789431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_TEMP_MIN(ix), 7799431996fSJuerg Haefliger data->temp_min[ix]); 7809431996fSJuerg Haefliger break; 7819431996fSJuerg Haefliger case SYS_TEMP_MAX: 7829431996fSJuerg Haefliger data->temp_max[ix] = TEMP_TO_REG(val); 7839431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_TEMP_MAX(ix), 7849431996fSJuerg Haefliger data->temp_max[ix]); 7859431996fSJuerg Haefliger break; 7869431996fSJuerg Haefliger case SYS_TEMP_OFFSET: 7879431996fSJuerg Haefliger data->temp_offset[ix] = TEMP_TO_REG(val); 7889431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_TEMP_OFFSET(ix), 7899431996fSJuerg Haefliger data->temp_offset[ix]); 7909431996fSJuerg Haefliger break; 7919431996fSJuerg Haefliger default: 7929431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 7939431996fSJuerg Haefliger } 7949431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 7959431996fSJuerg Haefliger 7969431996fSJuerg Haefliger return count; 7979431996fSJuerg Haefliger } 7989431996fSJuerg Haefliger 7999431996fSJuerg Haefliger /* --------------------------------------------------------------------- 8009431996fSJuerg Haefliger * Zone sysfs attributes 8019431996fSJuerg Haefliger * ix = [0-2] 8029431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 8039431996fSJuerg Haefliger 8049431996fSJuerg Haefliger #define SYS_ZONE_AUTO_CHANNELS_TEMP 0 8059431996fSJuerg Haefliger #define SYS_ZONE_AUTO_POINT1_TEMP_HYST 1 8069431996fSJuerg Haefliger #define SYS_ZONE_AUTO_POINT1_TEMP 2 8079431996fSJuerg Haefliger #define SYS_ZONE_AUTO_POINT2_TEMP 3 8089431996fSJuerg Haefliger #define SYS_ZONE_AUTO_POINT3_TEMP 4 8099431996fSJuerg Haefliger 8109431996fSJuerg Haefliger static ssize_t show_zone(struct device *dev, struct device_attribute *attr, 8119431996fSJuerg Haefliger char *buf) 8129431996fSJuerg Haefliger { 8139431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 8149431996fSJuerg Haefliger struct sensor_device_attribute_2 8159431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 8169431996fSJuerg Haefliger int ix = sensor_attr_2->index; 8179431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 8189431996fSJuerg Haefliger int res; 8199431996fSJuerg Haefliger 8209431996fSJuerg Haefliger switch (fn) { 8219431996fSJuerg Haefliger case SYS_ZONE_AUTO_CHANNELS_TEMP: 8229431996fSJuerg Haefliger /* check config2 for non-standard temp-to-zone mapping */ 8239431996fSJuerg Haefliger if ((ix == 1) && (data->config2 & 0x02)) { 8249431996fSJuerg Haefliger res = 4; 8259431996fSJuerg Haefliger } else { 8269431996fSJuerg Haefliger res = 1 << ix; 8279431996fSJuerg Haefliger } 8289431996fSJuerg Haefliger break; 8299431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT1_TEMP_HYST: 8309431996fSJuerg Haefliger res = TEMP_FROM_REG(data->zone_low[ix], 8) - 8319431996fSJuerg Haefliger TEMP_HYST_FROM_REG(data->zone_hyst[ix == 2], ix); 8329431996fSJuerg Haefliger break; 8339431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT1_TEMP: 8349431996fSJuerg Haefliger res = TEMP_FROM_REG(data->zone_low[ix], 8); 8359431996fSJuerg Haefliger break; 8369431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT2_TEMP: 8379431996fSJuerg Haefliger /* pwm_freq holds the temp range bits in the upper nibble */ 8389431996fSJuerg Haefliger res = TEMP_FROM_REG(data->zone_low[ix], 8) + 8399431996fSJuerg Haefliger TEMP_RANGE_FROM_REG(data->pwm_freq[ix]); 8409431996fSJuerg Haefliger break; 8419431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT3_TEMP: 8429431996fSJuerg Haefliger res = TEMP_FROM_REG(data->zone_abs[ix], 8); 8439431996fSJuerg Haefliger break; 8449431996fSJuerg Haefliger default: 8459431996fSJuerg Haefliger res = 0; 8469431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 8479431996fSJuerg Haefliger } 8489431996fSJuerg Haefliger 8499431996fSJuerg Haefliger return sprintf(buf, "%d\n", res); 8509431996fSJuerg Haefliger } 8519431996fSJuerg Haefliger 8529431996fSJuerg Haefliger static ssize_t set_zone(struct device *dev, struct device_attribute *attr, 8539431996fSJuerg Haefliger const char *buf, size_t count) 8549431996fSJuerg Haefliger { 8559431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 8569431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 8579431996fSJuerg Haefliger struct sensor_device_attribute_2 8589431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 8599431996fSJuerg Haefliger int ix = sensor_attr_2->index; 8609431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 8619431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 8629431996fSJuerg Haefliger 8639431996fSJuerg Haefliger mutex_lock(&data->update_lock); 8649431996fSJuerg Haefliger switch (fn) { 8659431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT1_TEMP_HYST: 8669431996fSJuerg Haefliger /* Refresh the cache */ 8679431996fSJuerg Haefliger data->zone_low[ix] = dme1737_read(client, 8689431996fSJuerg Haefliger DME1737_REG_ZONE_LOW(ix)); 8699431996fSJuerg Haefliger /* Modify the temp hyst value */ 8709431996fSJuerg Haefliger data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG( 8719431996fSJuerg Haefliger TEMP_FROM_REG(data->zone_low[ix], 8) - 8729431996fSJuerg Haefliger val, ix, dme1737_read(client, 8739431996fSJuerg Haefliger DME1737_REG_ZONE_HYST(ix == 2))); 8749431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_ZONE_HYST(ix == 2), 8759431996fSJuerg Haefliger data->zone_hyst[ix == 2]); 8769431996fSJuerg Haefliger break; 8779431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT1_TEMP: 8789431996fSJuerg Haefliger data->zone_low[ix] = TEMP_TO_REG(val); 8799431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_ZONE_LOW(ix), 8809431996fSJuerg Haefliger data->zone_low[ix]); 8819431996fSJuerg Haefliger break; 8829431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT2_TEMP: 8839431996fSJuerg Haefliger /* Refresh the cache */ 8849431996fSJuerg Haefliger data->zone_low[ix] = dme1737_read(client, 8859431996fSJuerg Haefliger DME1737_REG_ZONE_LOW(ix)); 8869431996fSJuerg Haefliger /* Modify the temp range value (which is stored in the upper 8879431996fSJuerg Haefliger * nibble of the pwm_freq register) */ 8889431996fSJuerg Haefliger data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val - 8899431996fSJuerg Haefliger TEMP_FROM_REG(data->zone_low[ix], 8), 8909431996fSJuerg Haefliger dme1737_read(client, 8919431996fSJuerg Haefliger DME1737_REG_PWM_FREQ(ix))); 8929431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_FREQ(ix), 8939431996fSJuerg Haefliger data->pwm_freq[ix]); 8949431996fSJuerg Haefliger break; 8959431996fSJuerg Haefliger case SYS_ZONE_AUTO_POINT3_TEMP: 8969431996fSJuerg Haefliger data->zone_abs[ix] = TEMP_TO_REG(val); 8979431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_ZONE_ABS(ix), 8989431996fSJuerg Haefliger data->zone_abs[ix]); 8999431996fSJuerg Haefliger break; 9009431996fSJuerg Haefliger default: 9019431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 9029431996fSJuerg Haefliger } 9039431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 9049431996fSJuerg Haefliger 9059431996fSJuerg Haefliger return count; 9069431996fSJuerg Haefliger } 9079431996fSJuerg Haefliger 9089431996fSJuerg Haefliger /* --------------------------------------------------------------------- 9099431996fSJuerg Haefliger * Fan sysfs attributes 9109431996fSJuerg Haefliger * ix = [0-5] 9119431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 9129431996fSJuerg Haefliger 9139431996fSJuerg Haefliger #define SYS_FAN_INPUT 0 9149431996fSJuerg Haefliger #define SYS_FAN_MIN 1 9159431996fSJuerg Haefliger #define SYS_FAN_MAX 2 9169431996fSJuerg Haefliger #define SYS_FAN_ALARM 3 9179431996fSJuerg Haefliger #define SYS_FAN_TYPE 4 9189431996fSJuerg Haefliger 9199431996fSJuerg Haefliger static ssize_t show_fan(struct device *dev, struct device_attribute *attr, 9209431996fSJuerg Haefliger char *buf) 9219431996fSJuerg Haefliger { 9229431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 9239431996fSJuerg Haefliger struct sensor_device_attribute_2 9249431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 9259431996fSJuerg Haefliger int ix = sensor_attr_2->index; 9269431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 9279431996fSJuerg Haefliger int res; 9289431996fSJuerg Haefliger 9299431996fSJuerg Haefliger switch (fn) { 9309431996fSJuerg Haefliger case SYS_FAN_INPUT: 9319431996fSJuerg Haefliger res = FAN_FROM_REG(data->fan[ix], 9329431996fSJuerg Haefliger ix < 4 ? 0 : 9339431996fSJuerg Haefliger FAN_TPC_FROM_REG(data->fan_opt[ix])); 9349431996fSJuerg Haefliger break; 9359431996fSJuerg Haefliger case SYS_FAN_MIN: 9369431996fSJuerg Haefliger res = FAN_FROM_REG(data->fan_min[ix], 9379431996fSJuerg Haefliger ix < 4 ? 0 : 9389431996fSJuerg Haefliger FAN_TPC_FROM_REG(data->fan_opt[ix])); 9399431996fSJuerg Haefliger break; 9409431996fSJuerg Haefliger case SYS_FAN_MAX: 9419431996fSJuerg Haefliger /* only valid for fan[5-6] */ 9429431996fSJuerg Haefliger res = FAN_MAX_FROM_REG(data->fan_max[ix - 4]); 9439431996fSJuerg Haefliger break; 9449431996fSJuerg Haefliger case SYS_FAN_ALARM: 9459431996fSJuerg Haefliger res = (data->alarms >> DME1737_BIT_ALARM_FAN[ix]) & 0x01; 9469431996fSJuerg Haefliger break; 9479431996fSJuerg Haefliger case SYS_FAN_TYPE: 9489431996fSJuerg Haefliger /* only valid for fan[1-4] */ 9499431996fSJuerg Haefliger res = FAN_TYPE_FROM_REG(data->fan_opt[ix]); 9509431996fSJuerg Haefliger break; 9519431996fSJuerg Haefliger default: 9529431996fSJuerg Haefliger res = 0; 9539431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 9549431996fSJuerg Haefliger } 9559431996fSJuerg Haefliger 9569431996fSJuerg Haefliger return sprintf(buf, "%d\n", res); 9579431996fSJuerg Haefliger } 9589431996fSJuerg Haefliger 9599431996fSJuerg Haefliger static ssize_t set_fan(struct device *dev, struct device_attribute *attr, 9609431996fSJuerg Haefliger const char *buf, size_t count) 9619431996fSJuerg Haefliger { 9629431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 9639431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 9649431996fSJuerg Haefliger struct sensor_device_attribute_2 9659431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 9669431996fSJuerg Haefliger int ix = sensor_attr_2->index; 9679431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 9689431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 9699431996fSJuerg Haefliger 9709431996fSJuerg Haefliger mutex_lock(&data->update_lock); 9719431996fSJuerg Haefliger switch (fn) { 9729431996fSJuerg Haefliger case SYS_FAN_MIN: 9739431996fSJuerg Haefliger if (ix < 4) { 9749431996fSJuerg Haefliger data->fan_min[ix] = FAN_TO_REG(val, 0); 9759431996fSJuerg Haefliger } else { 9769431996fSJuerg Haefliger /* Refresh the cache */ 9779431996fSJuerg Haefliger data->fan_opt[ix] = dme1737_read(client, 9789431996fSJuerg Haefliger DME1737_REG_FAN_OPT(ix)); 9799431996fSJuerg Haefliger /* Modify the fan min value */ 9809431996fSJuerg Haefliger data->fan_min[ix] = FAN_TO_REG(val, 9819431996fSJuerg Haefliger FAN_TPC_FROM_REG(data->fan_opt[ix])); 9829431996fSJuerg Haefliger } 9839431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_FAN_MIN(ix), 9849431996fSJuerg Haefliger data->fan_min[ix] & 0xff); 9859431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_FAN_MIN(ix) + 1, 9869431996fSJuerg Haefliger data->fan_min[ix] >> 8); 9879431996fSJuerg Haefliger break; 9889431996fSJuerg Haefliger case SYS_FAN_MAX: 9899431996fSJuerg Haefliger /* Only valid for fan[5-6] */ 9909431996fSJuerg Haefliger data->fan_max[ix - 4] = FAN_MAX_TO_REG(val); 9919431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_FAN_MAX(ix), 9929431996fSJuerg Haefliger data->fan_max[ix - 4]); 9939431996fSJuerg Haefliger break; 9949431996fSJuerg Haefliger case SYS_FAN_TYPE: 9959431996fSJuerg Haefliger /* Only valid for fan[1-4] */ 9969431996fSJuerg Haefliger if (!(val == 1 || val == 2 || val == 4)) { 9979431996fSJuerg Haefliger count = -EINVAL; 9989431996fSJuerg Haefliger dev_warn(&client->dev, "Fan type value %ld not " 9999431996fSJuerg Haefliger "supported. Choose one of 1, 2, or 4.\n", 10009431996fSJuerg Haefliger val); 10019431996fSJuerg Haefliger goto exit; 10029431996fSJuerg Haefliger } 10039431996fSJuerg Haefliger data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(client, 10049431996fSJuerg Haefliger DME1737_REG_FAN_OPT(ix))); 10059431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_FAN_OPT(ix), 10069431996fSJuerg Haefliger data->fan_opt[ix]); 10079431996fSJuerg Haefliger break; 10089431996fSJuerg Haefliger default: 10099431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 10109431996fSJuerg Haefliger } 10119431996fSJuerg Haefliger exit: 10129431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 10139431996fSJuerg Haefliger 10149431996fSJuerg Haefliger return count; 10159431996fSJuerg Haefliger } 10169431996fSJuerg Haefliger 10179431996fSJuerg Haefliger /* --------------------------------------------------------------------- 10189431996fSJuerg Haefliger * PWM sysfs attributes 10199431996fSJuerg Haefliger * ix = [0-4] 10209431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 10219431996fSJuerg Haefliger 10229431996fSJuerg Haefliger #define SYS_PWM 0 10239431996fSJuerg Haefliger #define SYS_PWM_FREQ 1 10249431996fSJuerg Haefliger #define SYS_PWM_ENABLE 2 10259431996fSJuerg Haefliger #define SYS_PWM_RAMP_RATE 3 10269431996fSJuerg Haefliger #define SYS_PWM_AUTO_CHANNELS_ZONE 4 10279431996fSJuerg Haefliger #define SYS_PWM_AUTO_PWM_MIN 5 10289431996fSJuerg Haefliger #define SYS_PWM_AUTO_POINT1_PWM 6 10299431996fSJuerg Haefliger #define SYS_PWM_AUTO_POINT2_PWM 7 10309431996fSJuerg Haefliger 10319431996fSJuerg Haefliger static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, 10329431996fSJuerg Haefliger char *buf) 10339431996fSJuerg Haefliger { 10349431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 10359431996fSJuerg Haefliger struct sensor_device_attribute_2 10369431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 10379431996fSJuerg Haefliger int ix = sensor_attr_2->index; 10389431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 10399431996fSJuerg Haefliger int res; 10409431996fSJuerg Haefliger 10419431996fSJuerg Haefliger switch (fn) { 10429431996fSJuerg Haefliger case SYS_PWM: 10439431996fSJuerg Haefliger if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 0) { 10449431996fSJuerg Haefliger res = 255; 10459431996fSJuerg Haefliger } else { 10469431996fSJuerg Haefliger res = data->pwm[ix]; 10479431996fSJuerg Haefliger } 10489431996fSJuerg Haefliger break; 10499431996fSJuerg Haefliger case SYS_PWM_FREQ: 10509431996fSJuerg Haefliger res = PWM_FREQ_FROM_REG(data->pwm_freq[ix]); 10519431996fSJuerg Haefliger break; 10529431996fSJuerg Haefliger case SYS_PWM_ENABLE: 10539431996fSJuerg Haefliger if (ix > 3) { 10549431996fSJuerg Haefliger res = 1; /* pwm[5-6] hard-wired to manual mode */ 10559431996fSJuerg Haefliger } else { 10569431996fSJuerg Haefliger res = PWM_EN_FROM_REG(data->pwm_config[ix]); 10579431996fSJuerg Haefliger } 10589431996fSJuerg Haefliger break; 10599431996fSJuerg Haefliger case SYS_PWM_RAMP_RATE: 10609431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 10619431996fSJuerg Haefliger res = PWM_RR_FROM_REG(data->pwm_rr[ix > 0], ix); 10629431996fSJuerg Haefliger break; 10639431996fSJuerg Haefliger case SYS_PWM_AUTO_CHANNELS_ZONE: 10649431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 10659431996fSJuerg Haefliger if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) { 10669431996fSJuerg Haefliger res = PWM_ACZ_FROM_REG(data->pwm_config[ix]); 10679431996fSJuerg Haefliger } else { 10689431996fSJuerg Haefliger res = data->pwm_acz[ix]; 10699431996fSJuerg Haefliger } 10709431996fSJuerg Haefliger break; 10719431996fSJuerg Haefliger case SYS_PWM_AUTO_PWM_MIN: 10729431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 10739431996fSJuerg Haefliger if (PWM_OFF_FROM_REG(data->pwm_rr[0], ix)) { 10749431996fSJuerg Haefliger res = data->pwm_min[ix]; 10759431996fSJuerg Haefliger } else { 10769431996fSJuerg Haefliger res = 0; 10779431996fSJuerg Haefliger } 10789431996fSJuerg Haefliger break; 10799431996fSJuerg Haefliger case SYS_PWM_AUTO_POINT1_PWM: 10809431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 10819431996fSJuerg Haefliger res = data->pwm_min[ix]; 10829431996fSJuerg Haefliger break; 10839431996fSJuerg Haefliger case SYS_PWM_AUTO_POINT2_PWM: 10849431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 10859431996fSJuerg Haefliger res = 255; /* hard-wired */ 10869431996fSJuerg Haefliger break; 10879431996fSJuerg Haefliger default: 10889431996fSJuerg Haefliger res = 0; 10899431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 10909431996fSJuerg Haefliger } 10919431996fSJuerg Haefliger 10929431996fSJuerg Haefliger return sprintf(buf, "%d\n", res); 10939431996fSJuerg Haefliger } 10949431996fSJuerg Haefliger 10959431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm[]; 10969431996fSJuerg Haefliger static void dme1737_chmod_file(struct i2c_client*, struct attribute*, mode_t); 10979431996fSJuerg Haefliger 10989431996fSJuerg Haefliger static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 10999431996fSJuerg Haefliger const char *buf, size_t count) 11009431996fSJuerg Haefliger { 11019431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 11029431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 11039431996fSJuerg Haefliger struct sensor_device_attribute_2 11049431996fSJuerg Haefliger *sensor_attr_2 = to_sensor_dev_attr_2(attr); 11059431996fSJuerg Haefliger int ix = sensor_attr_2->index; 11069431996fSJuerg Haefliger int fn = sensor_attr_2->nr; 11079431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 11089431996fSJuerg Haefliger 11099431996fSJuerg Haefliger mutex_lock(&data->update_lock); 11109431996fSJuerg Haefliger switch (fn) { 11119431996fSJuerg Haefliger case SYS_PWM: 11129431996fSJuerg Haefliger data->pwm[ix] = SENSORS_LIMIT(val, 0, 255); 11139431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM(ix), data->pwm[ix]); 11149431996fSJuerg Haefliger break; 11159431996fSJuerg Haefliger case SYS_PWM_FREQ: 11169431996fSJuerg Haefliger data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(client, 11179431996fSJuerg Haefliger DME1737_REG_PWM_FREQ(ix))); 11189431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_FREQ(ix), 11199431996fSJuerg Haefliger data->pwm_freq[ix]); 11209431996fSJuerg Haefliger break; 11219431996fSJuerg Haefliger case SYS_PWM_ENABLE: 11229431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 11239431996fSJuerg Haefliger if (val < 0 || val > 2) { 11249431996fSJuerg Haefliger count = -EINVAL; 11259431996fSJuerg Haefliger dev_warn(&client->dev, "PWM enable %ld not " 11269431996fSJuerg Haefliger "supported. Choose one of 0, 1, or 2.\n", 11279431996fSJuerg Haefliger val); 11289431996fSJuerg Haefliger goto exit; 11299431996fSJuerg Haefliger } 11309431996fSJuerg Haefliger /* Refresh the cache */ 11319431996fSJuerg Haefliger data->pwm_config[ix] = dme1737_read(client, 11329431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix)); 11339431996fSJuerg Haefliger if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) { 11349431996fSJuerg Haefliger /* Bail out if no change */ 11359431996fSJuerg Haefliger goto exit; 11369431996fSJuerg Haefliger } 11379431996fSJuerg Haefliger /* Do some housekeeping if we are currently in auto mode */ 11389431996fSJuerg Haefliger if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) { 11399431996fSJuerg Haefliger /* Save the current zone channel assignment */ 11409431996fSJuerg Haefliger data->pwm_acz[ix] = PWM_ACZ_FROM_REG( 11419431996fSJuerg Haefliger data->pwm_config[ix]); 11429431996fSJuerg Haefliger /* Save the current ramp rate state and disable it */ 11439431996fSJuerg Haefliger data->pwm_rr[ix > 0] = dme1737_read(client, 11449431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix > 0)); 11459431996fSJuerg Haefliger data->pwm_rr_en &= ~(1 << ix); 11469431996fSJuerg Haefliger if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) { 11479431996fSJuerg Haefliger data->pwm_rr_en |= (1 << ix); 11489431996fSJuerg Haefliger data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix, 11499431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 11509431996fSJuerg Haefliger dme1737_write(client, 11519431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix > 0), 11529431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 11539431996fSJuerg Haefliger } 11549431996fSJuerg Haefliger } 11559431996fSJuerg Haefliger /* Set the new PWM mode */ 11569431996fSJuerg Haefliger switch (val) { 11579431996fSJuerg Haefliger case 0: 11589431996fSJuerg Haefliger /* Change permissions of pwm[ix] to read-only */ 11599431996fSJuerg Haefliger dme1737_chmod_file(client, dme1737_attr_pwm[ix], 11609431996fSJuerg Haefliger S_IRUGO); 11619431996fSJuerg Haefliger /* Turn fan fully on */ 11629431996fSJuerg Haefliger data->pwm_config[ix] = PWM_EN_TO_REG(0, 11639431996fSJuerg Haefliger data->pwm_config[ix]); 11649431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 11659431996fSJuerg Haefliger data->pwm_config[ix]); 11669431996fSJuerg Haefliger break; 11679431996fSJuerg Haefliger case 1: 11689431996fSJuerg Haefliger /* Turn on manual mode */ 11699431996fSJuerg Haefliger data->pwm_config[ix] = PWM_EN_TO_REG(1, 11709431996fSJuerg Haefliger data->pwm_config[ix]); 11719431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 11729431996fSJuerg Haefliger data->pwm_config[ix]); 11739431996fSJuerg Haefliger /* Change permissions of pwm[ix] to read-writeable */ 11749431996fSJuerg Haefliger dme1737_chmod_file(client, dme1737_attr_pwm[ix], 11759431996fSJuerg Haefliger S_IRUGO | S_IWUSR); 11769431996fSJuerg Haefliger break; 11779431996fSJuerg Haefliger case 2: 11789431996fSJuerg Haefliger /* Change permissions of pwm[ix] to read-only */ 11799431996fSJuerg Haefliger dme1737_chmod_file(client, dme1737_attr_pwm[ix], 11809431996fSJuerg Haefliger S_IRUGO); 11819431996fSJuerg Haefliger /* Turn on auto mode using the saved zone channel 11829431996fSJuerg Haefliger * assignment */ 11839431996fSJuerg Haefliger data->pwm_config[ix] = PWM_ACZ_TO_REG( 11849431996fSJuerg Haefliger data->pwm_acz[ix], 11859431996fSJuerg Haefliger data->pwm_config[ix]); 11869431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 11879431996fSJuerg Haefliger data->pwm_config[ix]); 11889431996fSJuerg Haefliger /* Enable PWM ramp rate if previously enabled */ 11899431996fSJuerg Haefliger if (data->pwm_rr_en & (1 << ix)) { 11909431996fSJuerg Haefliger data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix, 11919431996fSJuerg Haefliger dme1737_read(client, 11929431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix > 0))); 11939431996fSJuerg Haefliger dme1737_write(client, 11949431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix > 0), 11959431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 11969431996fSJuerg Haefliger } 11979431996fSJuerg Haefliger break; 11989431996fSJuerg Haefliger } 11999431996fSJuerg Haefliger break; 12009431996fSJuerg Haefliger case SYS_PWM_RAMP_RATE: 12019431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 12029431996fSJuerg Haefliger /* Refresh the cache */ 12039431996fSJuerg Haefliger data->pwm_config[ix] = dme1737_read(client, 12049431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix)); 12059431996fSJuerg Haefliger data->pwm_rr[ix > 0] = dme1737_read(client, 12069431996fSJuerg Haefliger DME1737_REG_PWM_RR(ix > 0)); 12079431996fSJuerg Haefliger /* Set the ramp rate value */ 12089431996fSJuerg Haefliger if (val > 0) { 12099431996fSJuerg Haefliger data->pwm_rr[ix > 0] = PWM_RR_TO_REG(val, ix, 12109431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 12119431996fSJuerg Haefliger } 12129431996fSJuerg Haefliger /* Enable/disable the feature only if the associated PWM 12139431996fSJuerg Haefliger * output is in automatic mode. */ 12149431996fSJuerg Haefliger if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) { 12159431996fSJuerg Haefliger data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix, 12169431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 12179431996fSJuerg Haefliger } 12189431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_RR(ix > 0), 12199431996fSJuerg Haefliger data->pwm_rr[ix > 0]); 12209431996fSJuerg Haefliger break; 12219431996fSJuerg Haefliger case SYS_PWM_AUTO_CHANNELS_ZONE: 12229431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 12239431996fSJuerg Haefliger if (!(val == 1 || val == 2 || val == 4 || 12249431996fSJuerg Haefliger val == 6 || val == 7)) { 12259431996fSJuerg Haefliger count = -EINVAL; 12269431996fSJuerg Haefliger dev_warn(&client->dev, "PWM auto channels zone %ld " 12279431996fSJuerg Haefliger "not supported. Choose one of 1, 2, 4, 6, " 12289431996fSJuerg Haefliger "or 7.\n", val); 12299431996fSJuerg Haefliger goto exit; 12309431996fSJuerg Haefliger } 12319431996fSJuerg Haefliger /* Refresh the cache */ 12329431996fSJuerg Haefliger data->pwm_config[ix] = dme1737_read(client, 12339431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix)); 12349431996fSJuerg Haefliger if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) { 12359431996fSJuerg Haefliger /* PWM is already in auto mode so update the temp 12369431996fSJuerg Haefliger * channel assignment */ 12379431996fSJuerg Haefliger data->pwm_config[ix] = PWM_ACZ_TO_REG(val, 12389431996fSJuerg Haefliger data->pwm_config[ix]); 12399431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 12409431996fSJuerg Haefliger data->pwm_config[ix]); 12419431996fSJuerg Haefliger } else { 12429431996fSJuerg Haefliger /* PWM is not in auto mode so we save the temp 12439431996fSJuerg Haefliger * channel assignment for later use */ 12449431996fSJuerg Haefliger data->pwm_acz[ix] = val; 12459431996fSJuerg Haefliger } 12469431996fSJuerg Haefliger break; 12479431996fSJuerg Haefliger case SYS_PWM_AUTO_PWM_MIN: 12489431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 12499431996fSJuerg Haefliger /* Refresh the cache */ 12509431996fSJuerg Haefliger data->pwm_min[ix] = dme1737_read(client, 12519431996fSJuerg Haefliger DME1737_REG_PWM_MIN(ix)); 12529431996fSJuerg Haefliger /* There are only 2 values supported for the auto_pwm_min 12539431996fSJuerg Haefliger * value: 0 or auto_point1_pwm. So if the temperature drops 12549431996fSJuerg Haefliger * below the auto_point1_temp_hyst value, the fan either turns 12559431996fSJuerg Haefliger * off or runs at auto_point1_pwm duty-cycle. */ 12569431996fSJuerg Haefliger if (val > ((data->pwm_min[ix] + 1) / 2)) { 12579431996fSJuerg Haefliger data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix, 12589431996fSJuerg Haefliger dme1737_read(client, 12599431996fSJuerg Haefliger DME1737_REG_PWM_RR(0))); 12609431996fSJuerg Haefliger 12619431996fSJuerg Haefliger } else { 12629431996fSJuerg Haefliger data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix, 12639431996fSJuerg Haefliger dme1737_read(client, 12649431996fSJuerg Haefliger DME1737_REG_PWM_RR(0))); 12659431996fSJuerg Haefliger 12669431996fSJuerg Haefliger } 12679431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_RR(0), 12689431996fSJuerg Haefliger data->pwm_rr[0]); 12699431996fSJuerg Haefliger break; 12709431996fSJuerg Haefliger case SYS_PWM_AUTO_POINT1_PWM: 12719431996fSJuerg Haefliger /* Only valid for pwm[1-3] */ 12729431996fSJuerg Haefliger data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255); 12739431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM_MIN(ix), 12749431996fSJuerg Haefliger data->pwm_min[ix]); 12759431996fSJuerg Haefliger break; 12769431996fSJuerg Haefliger default: 12779431996fSJuerg Haefliger dev_dbg(dev, "Unknown attr fetch (%d)\n", fn); 12789431996fSJuerg Haefliger } 12799431996fSJuerg Haefliger exit: 12809431996fSJuerg Haefliger mutex_unlock(&data->update_lock); 12819431996fSJuerg Haefliger 12829431996fSJuerg Haefliger return count; 12839431996fSJuerg Haefliger } 12849431996fSJuerg Haefliger 12859431996fSJuerg Haefliger /* --------------------------------------------------------------------- 12869431996fSJuerg Haefliger * Miscellaneous sysfs attributes 12879431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 12889431996fSJuerg Haefliger 12899431996fSJuerg Haefliger static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, 12909431996fSJuerg Haefliger char *buf) 12919431996fSJuerg Haefliger { 12929431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 12939431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 12949431996fSJuerg Haefliger 12959431996fSJuerg Haefliger return sprintf(buf, "%d\n", data->vrm); 12969431996fSJuerg Haefliger } 12979431996fSJuerg Haefliger 12989431996fSJuerg Haefliger static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, 12999431996fSJuerg Haefliger const char *buf, size_t count) 13009431996fSJuerg Haefliger { 13019431996fSJuerg Haefliger struct i2c_client *client = to_i2c_client(dev); 13029431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 13039431996fSJuerg Haefliger long val = simple_strtol(buf, NULL, 10); 13049431996fSJuerg Haefliger 13059431996fSJuerg Haefliger data->vrm = val; 13069431996fSJuerg Haefliger return count; 13079431996fSJuerg Haefliger } 13089431996fSJuerg Haefliger 13099431996fSJuerg Haefliger static ssize_t show_vid(struct device *dev, struct device_attribute *attr, 13109431996fSJuerg Haefliger char *buf) 13119431996fSJuerg Haefliger { 13129431996fSJuerg Haefliger struct dme1737_data *data = dme1737_update_device(dev); 13139431996fSJuerg Haefliger 13149431996fSJuerg Haefliger return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); 13159431996fSJuerg Haefliger } 13169431996fSJuerg Haefliger 13179431996fSJuerg Haefliger /* --------------------------------------------------------------------- 13189431996fSJuerg Haefliger * Sysfs device attribute defines and structs 13199431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 13209431996fSJuerg Haefliger 13219431996fSJuerg Haefliger /* Voltages 0-6 */ 13229431996fSJuerg Haefliger 13239431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_IN(ix) \ 13249431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(in##ix##_input, S_IRUGO, \ 13259431996fSJuerg Haefliger show_in, NULL, SYS_IN_INPUT, ix); \ 13269431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(in##ix##_min, S_IRUGO | S_IWUSR, \ 13279431996fSJuerg Haefliger show_in, set_in, SYS_IN_MIN, ix); \ 13289431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(in##ix##_max, S_IRUGO | S_IWUSR, \ 13299431996fSJuerg Haefliger show_in, set_in, SYS_IN_MAX, ix); \ 13309431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(in##ix##_alarm, S_IRUGO, \ 13319431996fSJuerg Haefliger show_in, NULL, SYS_IN_ALARM, ix) 13329431996fSJuerg Haefliger 13339431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(0); 13349431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(1); 13359431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(2); 13369431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(3); 13379431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(4); 13389431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(5); 13399431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_IN(6); 13409431996fSJuerg Haefliger 13419431996fSJuerg Haefliger /* Temperatures 1-3 */ 13429431996fSJuerg Haefliger 13439431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_TEMP(ix) \ 13449431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_input, S_IRUGO, \ 13459431996fSJuerg Haefliger show_temp, NULL, SYS_TEMP_INPUT, ix-1); \ 13469431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_min, S_IRUGO | S_IWUSR, \ 13479431996fSJuerg Haefliger show_temp, set_temp, SYS_TEMP_MIN, ix-1); \ 13489431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_max, S_IRUGO | S_IWUSR, \ 13499431996fSJuerg Haefliger show_temp, set_temp, SYS_TEMP_MAX, ix-1); \ 13509431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_offset, S_IRUGO, \ 13519431996fSJuerg Haefliger show_temp, set_temp, SYS_TEMP_OFFSET, ix-1); \ 13529431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_alarm, S_IRUGO, \ 13539431996fSJuerg Haefliger show_temp, NULL, SYS_TEMP_ALARM, ix-1); \ 13549431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(temp##ix##_fault, S_IRUGO, \ 13559431996fSJuerg Haefliger show_temp, NULL, SYS_TEMP_FAULT, ix-1) 13569431996fSJuerg Haefliger 13579431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_TEMP(1); 13589431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_TEMP(2); 13599431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_TEMP(3); 13609431996fSJuerg Haefliger 13619431996fSJuerg Haefliger /* Zones 1-3 */ 13629431996fSJuerg Haefliger 13639431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_ZONE(ix) \ 13649431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_channels_temp, S_IRUGO, \ 13659431996fSJuerg Haefliger show_zone, NULL, SYS_ZONE_AUTO_CHANNELS_TEMP, ix-1); \ 13669431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp_hyst, S_IRUGO, \ 13679431996fSJuerg Haefliger show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP_HYST, ix-1); \ 13689431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point1_temp, S_IRUGO, \ 13699431996fSJuerg Haefliger show_zone, set_zone, SYS_ZONE_AUTO_POINT1_TEMP, ix-1); \ 13709431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point2_temp, S_IRUGO, \ 13719431996fSJuerg Haefliger show_zone, set_zone, SYS_ZONE_AUTO_POINT2_TEMP, ix-1); \ 13729431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(zone##ix##_auto_point3_temp, S_IRUGO, \ 13739431996fSJuerg Haefliger show_zone, set_zone, SYS_ZONE_AUTO_POINT3_TEMP, ix-1) 13749431996fSJuerg Haefliger 13759431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_ZONE(1); 13769431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_ZONE(2); 13779431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_ZONE(3); 13789431996fSJuerg Haefliger 13799431996fSJuerg Haefliger /* Fans 1-4 */ 13809431996fSJuerg Haefliger 13819431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_FAN_1TO4(ix) \ 13829431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \ 13839431996fSJuerg Haefliger show_fan, NULL, SYS_FAN_INPUT, ix-1); \ 13849431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ 13859431996fSJuerg Haefliger show_fan, set_fan, SYS_FAN_MIN, ix-1); \ 13869431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \ 13879431996fSJuerg Haefliger show_fan, NULL, SYS_FAN_ALARM, ix-1); \ 13889431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_type, S_IRUGO | S_IWUSR, \ 13899431996fSJuerg Haefliger show_fan, set_fan, SYS_FAN_TYPE, ix-1) 13909431996fSJuerg Haefliger 13919431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_1TO4(1); 13929431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_1TO4(2); 13939431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_1TO4(3); 13949431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_1TO4(4); 13959431996fSJuerg Haefliger 13969431996fSJuerg Haefliger /* Fans 5-6 */ 13979431996fSJuerg Haefliger 13989431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_FAN_5TO6(ix) \ 13999431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_input, S_IRUGO, \ 14009431996fSJuerg Haefliger show_fan, NULL, SYS_FAN_INPUT, ix-1); \ 14019431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_min, S_IRUGO | S_IWUSR, \ 14029431996fSJuerg Haefliger show_fan, set_fan, SYS_FAN_MIN, ix-1); \ 14039431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_alarm, S_IRUGO, \ 14049431996fSJuerg Haefliger show_fan, NULL, SYS_FAN_ALARM, ix-1); \ 14059431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(fan##ix##_max, S_IRUGO | S_IWUSR, \ 14069431996fSJuerg Haefliger show_fan, set_fan, SYS_FAN_MAX, ix-1) 14079431996fSJuerg Haefliger 14089431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_5TO6(5); 14099431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_FAN_5TO6(6); 14109431996fSJuerg Haefliger 14119431996fSJuerg Haefliger /* PWMs 1-3 */ 14129431996fSJuerg Haefliger 14139431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_PWM_1TO3(ix) \ 14149431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO, \ 14159431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM, ix-1); \ 14169431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO, \ 14179431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ 14189431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \ 14199431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_ENABLE, ix-1); \ 14209431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_ramp_rate, S_IRUGO, \ 14219431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_RAMP_RATE, ix-1); \ 14229431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_channels_zone, S_IRUGO, \ 14239431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_AUTO_CHANNELS_ZONE, ix-1); \ 14249431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_pwm_min, S_IRUGO, \ 14259431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_AUTO_PWM_MIN, ix-1); \ 14269431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point1_pwm, S_IRUGO, \ 14279431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_AUTO_POINT1_PWM, ix-1); \ 14289431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_auto_point2_pwm, S_IRUGO, \ 14299431996fSJuerg Haefliger show_pwm, NULL, SYS_PWM_AUTO_POINT2_PWM, ix-1) 14309431996fSJuerg Haefliger 14319431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_PWM_1TO3(1); 14329431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_PWM_1TO3(2); 14339431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_PWM_1TO3(3); 14349431996fSJuerg Haefliger 14359431996fSJuerg Haefliger /* PWMs 5-6 */ 14369431996fSJuerg Haefliger 14379431996fSJuerg Haefliger #define SENSOR_DEVICE_ATTR_PWM_5TO6(ix) \ 14389431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix, S_IRUGO | S_IWUSR, \ 14399431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM, ix-1); \ 14409431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_freq, S_IRUGO | S_IWUSR, \ 14419431996fSJuerg Haefliger show_pwm, set_pwm, SYS_PWM_FREQ, ix-1); \ 14429431996fSJuerg Haefliger static SENSOR_DEVICE_ATTR_2(pwm##ix##_enable, S_IRUGO, \ 14439431996fSJuerg Haefliger show_pwm, NULL, SYS_PWM_ENABLE, ix-1) 14449431996fSJuerg Haefliger 14459431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_PWM_5TO6(5); 14469431996fSJuerg Haefliger SENSOR_DEVICE_ATTR_PWM_5TO6(6); 14479431996fSJuerg Haefliger 14489431996fSJuerg Haefliger /* Misc */ 14499431996fSJuerg Haefliger 14509431996fSJuerg Haefliger static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 14519431996fSJuerg Haefliger static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 14529431996fSJuerg Haefliger 14539431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_IN(ix) \ 14549431996fSJuerg Haefliger &sensor_dev_attr_in##ix##_input.dev_attr.attr, \ 14559431996fSJuerg Haefliger &sensor_dev_attr_in##ix##_min.dev_attr.attr, \ 14569431996fSJuerg Haefliger &sensor_dev_attr_in##ix##_max.dev_attr.attr, \ 14579431996fSJuerg Haefliger &sensor_dev_attr_in##ix##_alarm.dev_attr.attr 14589431996fSJuerg Haefliger 14599431996fSJuerg Haefliger /* These attributes are read-writeable only if the chip is *not* locked */ 14609431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_TEMP_LOCK(ix) \ 14619431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_offset.dev_attr.attr 14629431996fSJuerg Haefliger 14639431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_TEMP(ix) \ 14649431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP_LOCK(ix), \ 14659431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_input.dev_attr.attr, \ 14669431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_min.dev_attr.attr, \ 14679431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_max.dev_attr.attr, \ 14689431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_alarm.dev_attr.attr, \ 14699431996fSJuerg Haefliger &sensor_dev_attr_temp##ix##_fault.dev_attr.attr 14709431996fSJuerg Haefliger 14719431996fSJuerg Haefliger /* These attributes are read-writeable only if the chip is *not* locked */ 14729431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_ZONE_LOCK(ix) \ 14739431996fSJuerg Haefliger &sensor_dev_attr_zone##ix##_auto_point1_temp_hyst.dev_attr.attr, \ 14749431996fSJuerg Haefliger &sensor_dev_attr_zone##ix##_auto_point1_temp.dev_attr.attr, \ 14759431996fSJuerg Haefliger &sensor_dev_attr_zone##ix##_auto_point2_temp.dev_attr.attr, \ 14769431996fSJuerg Haefliger &sensor_dev_attr_zone##ix##_auto_point3_temp.dev_attr.attr 14779431996fSJuerg Haefliger 14789431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_ZONE(ix) \ 14799431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE_LOCK(ix), \ 14809431996fSJuerg Haefliger &sensor_dev_attr_zone##ix##_auto_channels_temp.dev_attr.attr 14819431996fSJuerg Haefliger 14829431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_FAN_1TO4(ix) \ 14839431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_input.dev_attr.attr, \ 14849431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_min.dev_attr.attr, \ 14859431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_alarm.dev_attr.attr, \ 14869431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_type.dev_attr.attr 14879431996fSJuerg Haefliger 14889431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_FAN_5TO6(ix) \ 14899431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_input.dev_attr.attr, \ 14909431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_min.dev_attr.attr, \ 14919431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_alarm.dev_attr.attr, \ 14929431996fSJuerg Haefliger &sensor_dev_attr_fan##ix##_max.dev_attr.attr 14939431996fSJuerg Haefliger 14949431996fSJuerg Haefliger /* These attributes are read-writeable only if the chip is *not* locked */ 14959431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_PWM_1TO3_LOCK(ix) \ 14969431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_freq.dev_attr.attr, \ 14979431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_enable.dev_attr.attr, \ 14989431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_ramp_rate.dev_attr.attr, \ 14999431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_auto_channels_zone.dev_attr.attr, \ 15009431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_auto_pwm_min.dev_attr.attr, \ 15019431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_auto_point1_pwm.dev_attr.attr 15029431996fSJuerg Haefliger 15039431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_PWM_1TO3(ix) \ 15049431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3_LOCK(ix), \ 15059431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix.dev_attr.attr, \ 15069431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_auto_point2_pwm.dev_attr.attr 15079431996fSJuerg Haefliger 15089431996fSJuerg Haefliger /* These attributes are read-writeable only if the chip is *not* locked */ 15099431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_PWM_5TO6_LOCK(ix) \ 15109431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix.dev_attr.attr, \ 15119431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_freq.dev_attr.attr 15129431996fSJuerg Haefliger 15139431996fSJuerg Haefliger #define SENSOR_DEV_ATTR_PWM_5TO6(ix) \ 15149431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_5TO6_LOCK(ix), \ 15159431996fSJuerg Haefliger &sensor_dev_attr_pwm##ix##_enable.dev_attr.attr 15169431996fSJuerg Haefliger 15179431996fSJuerg Haefliger /* This struct holds all the attributes that are always present and need to be 15189431996fSJuerg Haefliger * created unconditionally. The attributes that need modification of their 15199431996fSJuerg Haefliger * permissions are created read-only and write permissions are added or removed 15209431996fSJuerg Haefliger * on the fly when required */ 15219431996fSJuerg Haefliger static struct attribute *dme1737_attr[] ={ 15229431996fSJuerg Haefliger /* Voltages */ 15239431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(0), 15249431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(1), 15259431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(2), 15269431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(3), 15279431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(4), 15289431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(5), 15299431996fSJuerg Haefliger SENSOR_DEV_ATTR_IN(6), 15309431996fSJuerg Haefliger /* Temperatures */ 15319431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP(1), 15329431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP(2), 15339431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP(3), 15349431996fSJuerg Haefliger /* Zones */ 15359431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE(1), 15369431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE(2), 15379431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE(3), 15389431996fSJuerg Haefliger /* Misc */ 15399431996fSJuerg Haefliger &dev_attr_vrm.attr, 15409431996fSJuerg Haefliger &dev_attr_cpu0_vid.attr, 15419431996fSJuerg Haefliger NULL 15429431996fSJuerg Haefliger }; 15439431996fSJuerg Haefliger 15449431996fSJuerg Haefliger static const struct attribute_group dme1737_group = { 15459431996fSJuerg Haefliger .attrs = dme1737_attr, 15469431996fSJuerg Haefliger }; 15479431996fSJuerg Haefliger 15489431996fSJuerg Haefliger /* The following structs hold the PWM attributes, some of which are optional. 15499431996fSJuerg Haefliger * Their creation depends on the chip configuration which is determined during 15509431996fSJuerg Haefliger * module load. */ 15519431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm1[] = { 15529431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3(1), 15539431996fSJuerg Haefliger NULL 15549431996fSJuerg Haefliger }; 15559431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm2[] = { 15569431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3(2), 15579431996fSJuerg Haefliger NULL 15589431996fSJuerg Haefliger }; 15599431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm3[] = { 15609431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3(3), 15619431996fSJuerg Haefliger NULL 15629431996fSJuerg Haefliger }; 15639431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm5[] = { 15649431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_5TO6(5), 15659431996fSJuerg Haefliger NULL 15669431996fSJuerg Haefliger }; 15679431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm6[] = { 15689431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_5TO6(6), 15699431996fSJuerg Haefliger NULL 15709431996fSJuerg Haefliger }; 15719431996fSJuerg Haefliger 15729431996fSJuerg Haefliger static const struct attribute_group dme1737_pwm_group[] = { 15739431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm1 }, 15749431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm2 }, 15759431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm3 }, 15769431996fSJuerg Haefliger { .attrs = NULL }, 15779431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm5 }, 15789431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm6 }, 15799431996fSJuerg Haefliger }; 15809431996fSJuerg Haefliger 15819431996fSJuerg Haefliger /* The following structs hold the fan attributes, some of which are optional. 15829431996fSJuerg Haefliger * Their creation depends on the chip configuration which is determined during 15839431996fSJuerg Haefliger * module load. */ 15849431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan1[] = { 15859431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_1TO4(1), 15869431996fSJuerg Haefliger NULL 15879431996fSJuerg Haefliger }; 15889431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan2[] = { 15899431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_1TO4(2), 15909431996fSJuerg Haefliger NULL 15919431996fSJuerg Haefliger }; 15929431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan3[] = { 15939431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_1TO4(3), 15949431996fSJuerg Haefliger NULL 15959431996fSJuerg Haefliger }; 15969431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan4[] = { 15979431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_1TO4(4), 15989431996fSJuerg Haefliger NULL 15999431996fSJuerg Haefliger }; 16009431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan5[] = { 16019431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_5TO6(5), 16029431996fSJuerg Haefliger NULL 16039431996fSJuerg Haefliger }; 16049431996fSJuerg Haefliger static struct attribute *dme1737_attr_fan6[] = { 16059431996fSJuerg Haefliger SENSOR_DEV_ATTR_FAN_5TO6(6), 16069431996fSJuerg Haefliger NULL 16079431996fSJuerg Haefliger }; 16089431996fSJuerg Haefliger 16099431996fSJuerg Haefliger static const struct attribute_group dme1737_fan_group[] = { 16109431996fSJuerg Haefliger { .attrs = dme1737_attr_fan1 }, 16119431996fSJuerg Haefliger { .attrs = dme1737_attr_fan2 }, 16129431996fSJuerg Haefliger { .attrs = dme1737_attr_fan3 }, 16139431996fSJuerg Haefliger { .attrs = dme1737_attr_fan4 }, 16149431996fSJuerg Haefliger { .attrs = dme1737_attr_fan5 }, 16159431996fSJuerg Haefliger { .attrs = dme1737_attr_fan6 }, 16169431996fSJuerg Haefliger }; 16179431996fSJuerg Haefliger 16189431996fSJuerg Haefliger /* The permissions of all of the following attributes are changed to read- 16199431996fSJuerg Haefliger * writeable if the chip is *not* locked. Otherwise they stay read-only. */ 16209431996fSJuerg Haefliger static struct attribute *dme1737_attr_lock[] = { 16219431996fSJuerg Haefliger /* Temperatures */ 16229431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP_LOCK(1), 16239431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP_LOCK(2), 16249431996fSJuerg Haefliger SENSOR_DEV_ATTR_TEMP_LOCK(3), 16259431996fSJuerg Haefliger /* Zones */ 16269431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE_LOCK(1), 16279431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE_LOCK(2), 16289431996fSJuerg Haefliger SENSOR_DEV_ATTR_ZONE_LOCK(3), 16299431996fSJuerg Haefliger NULL 16309431996fSJuerg Haefliger }; 16319431996fSJuerg Haefliger 16329431996fSJuerg Haefliger static const struct attribute_group dme1737_lock_group = { 16339431996fSJuerg Haefliger .attrs = dme1737_attr_lock, 16349431996fSJuerg Haefliger }; 16359431996fSJuerg Haefliger 16369431996fSJuerg Haefliger /* The permissions of the following PWM attributes are changed to read- 16379431996fSJuerg Haefliger * writeable if the chip is *not* locked and the respective PWM is available. 16389431996fSJuerg Haefliger * Otherwise they stay read-only. */ 16399431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm1_lock[] = { 16409431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3_LOCK(1), 16419431996fSJuerg Haefliger NULL 16429431996fSJuerg Haefliger }; 16439431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm2_lock[] = { 16449431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3_LOCK(2), 16459431996fSJuerg Haefliger NULL 16469431996fSJuerg Haefliger }; 16479431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm3_lock[] = { 16489431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_1TO3_LOCK(3), 16499431996fSJuerg Haefliger NULL 16509431996fSJuerg Haefliger }; 16519431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm5_lock[] = { 16529431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_5TO6_LOCK(5), 16539431996fSJuerg Haefliger NULL 16549431996fSJuerg Haefliger }; 16559431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm6_lock[] = { 16569431996fSJuerg Haefliger SENSOR_DEV_ATTR_PWM_5TO6_LOCK(6), 16579431996fSJuerg Haefliger NULL 16589431996fSJuerg Haefliger }; 16599431996fSJuerg Haefliger 16609431996fSJuerg Haefliger static const struct attribute_group dme1737_pwm_lock_group[] = { 16619431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm1_lock }, 16629431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm2_lock }, 16639431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm3_lock }, 16649431996fSJuerg Haefliger { .attrs = NULL }, 16659431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm5_lock }, 16669431996fSJuerg Haefliger { .attrs = dme1737_attr_pwm6_lock }, 16679431996fSJuerg Haefliger }; 16689431996fSJuerg Haefliger 16699431996fSJuerg Haefliger /* Pwm[1-3] are read-writeable if the associated pwm is in manual mode and the 16709431996fSJuerg Haefliger * chip is not locked. Otherwise they are read-only. */ 16719431996fSJuerg Haefliger static struct attribute *dme1737_attr_pwm[] = { 16729431996fSJuerg Haefliger &sensor_dev_attr_pwm1.dev_attr.attr, 16739431996fSJuerg Haefliger &sensor_dev_attr_pwm2.dev_attr.attr, 16749431996fSJuerg Haefliger &sensor_dev_attr_pwm3.dev_attr.attr, 16759431996fSJuerg Haefliger }; 16769431996fSJuerg Haefliger 16779431996fSJuerg Haefliger /* --------------------------------------------------------------------- 16789431996fSJuerg Haefliger * Super-IO functions 16799431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 16809431996fSJuerg Haefliger 16819431996fSJuerg Haefliger static inline int dme1737_sio_inb(int sio_cip, int reg) 16829431996fSJuerg Haefliger { 16839431996fSJuerg Haefliger outb(reg, sio_cip); 16849431996fSJuerg Haefliger return inb(sio_cip + 1); 16859431996fSJuerg Haefliger } 16869431996fSJuerg Haefliger 16879431996fSJuerg Haefliger static inline void dme1737_sio_outb(int sio_cip, int reg, int val) 16889431996fSJuerg Haefliger { 16899431996fSJuerg Haefliger outb(reg, sio_cip); 16909431996fSJuerg Haefliger outb(val, sio_cip + 1); 16919431996fSJuerg Haefliger } 16929431996fSJuerg Haefliger 16939431996fSJuerg Haefliger static int dme1737_sio_get_features(int sio_cip, struct i2c_client *client) 16949431996fSJuerg Haefliger { 16959431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 16969431996fSJuerg Haefliger int err = 0, reg; 16979431996fSJuerg Haefliger u16 addr; 16989431996fSJuerg Haefliger 16999431996fSJuerg Haefliger /* Enter configuration mode */ 17009431996fSJuerg Haefliger outb(0x55, sio_cip); 17019431996fSJuerg Haefliger 17029431996fSJuerg Haefliger /* Check device ID 17039431996fSJuerg Haefliger * The DME1737 can return either 0x78 or 0x77 as its device ID. */ 17049431996fSJuerg Haefliger reg = dme1737_sio_inb(sio_cip, 0x20); 17059431996fSJuerg Haefliger if (!(reg == 0x77 || reg == 0x78)) { 17069431996fSJuerg Haefliger err = -ENODEV; 17079431996fSJuerg Haefliger goto exit; 17089431996fSJuerg Haefliger } 17099431996fSJuerg Haefliger 17109431996fSJuerg Haefliger /* Select logical device A (runtime registers) */ 17119431996fSJuerg Haefliger dme1737_sio_outb(sio_cip, 0x07, 0x0a); 17129431996fSJuerg Haefliger 17139431996fSJuerg Haefliger /* Get the base address of the runtime registers */ 17149431996fSJuerg Haefliger if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) | 17159431996fSJuerg Haefliger dme1737_sio_inb(sio_cip, 0x61))) { 17169431996fSJuerg Haefliger err = -ENODEV; 17179431996fSJuerg Haefliger goto exit; 17189431996fSJuerg Haefliger } 17199431996fSJuerg Haefliger 17209431996fSJuerg Haefliger /* Read the runtime registers to determine which optional features 17219431996fSJuerg Haefliger * are enabled and available. Bits [3:2] of registers 0x43-0x46 are set 17229431996fSJuerg Haefliger * to '10' if the respective feature is enabled. */ 17239431996fSJuerg Haefliger if ((inb(addr + 0x43) & 0x0c) == 0x08) { /* fan6 */ 17249431996fSJuerg Haefliger data->has_fan |= (1 << 5); 17259431996fSJuerg Haefliger } 17269431996fSJuerg Haefliger if ((inb(addr + 0x44) & 0x0c) == 0x08) { /* pwm6 */ 17279431996fSJuerg Haefliger data->has_pwm |= (1 << 5); 17289431996fSJuerg Haefliger } 17299431996fSJuerg Haefliger if ((inb(addr + 0x45) & 0x0c) == 0x08) { /* fan5 */ 17309431996fSJuerg Haefliger data->has_fan |= (1 << 4); 17319431996fSJuerg Haefliger } 17329431996fSJuerg Haefliger if ((inb(addr + 0x46) & 0x0c) == 0x08) { /* pwm5 */ 17339431996fSJuerg Haefliger data->has_pwm |= (1 << 4); 17349431996fSJuerg Haefliger } 17359431996fSJuerg Haefliger 17369431996fSJuerg Haefliger exit: 17379431996fSJuerg Haefliger /* Exit configuration mode */ 17389431996fSJuerg Haefliger outb(0xaa, sio_cip); 17399431996fSJuerg Haefliger 17409431996fSJuerg Haefliger return err; 17419431996fSJuerg Haefliger } 17429431996fSJuerg Haefliger 17439431996fSJuerg Haefliger /* --------------------------------------------------------------------- 17449431996fSJuerg Haefliger * Device detection, registration and initialization 17459431996fSJuerg Haefliger * --------------------------------------------------------------------- */ 17469431996fSJuerg Haefliger 17479431996fSJuerg Haefliger static struct i2c_driver dme1737_driver; 17489431996fSJuerg Haefliger 17499431996fSJuerg Haefliger static void dme1737_chmod_file(struct i2c_client *client, 17509431996fSJuerg Haefliger struct attribute *attr, mode_t mode) 17519431996fSJuerg Haefliger { 17529431996fSJuerg Haefliger if (sysfs_chmod_file(&client->dev.kobj, attr, mode)) { 17539431996fSJuerg Haefliger dev_warn(&client->dev, "Failed to change permissions of %s.\n", 17549431996fSJuerg Haefliger attr->name); 17559431996fSJuerg Haefliger } 17569431996fSJuerg Haefliger } 17579431996fSJuerg Haefliger 17589431996fSJuerg Haefliger static void dme1737_chmod_group(struct i2c_client *client, 17599431996fSJuerg Haefliger const struct attribute_group *group, 17609431996fSJuerg Haefliger mode_t mode) 17619431996fSJuerg Haefliger { 17629431996fSJuerg Haefliger struct attribute **attr; 17639431996fSJuerg Haefliger 17649431996fSJuerg Haefliger for (attr = group->attrs; *attr; attr++) { 17659431996fSJuerg Haefliger dme1737_chmod_file(client, *attr, mode); 17669431996fSJuerg Haefliger } 17679431996fSJuerg Haefliger } 17689431996fSJuerg Haefliger 17699431996fSJuerg Haefliger static int dme1737_init_client(struct i2c_client *client) 17709431996fSJuerg Haefliger { 17719431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 17729431996fSJuerg Haefliger int ix; 17739431996fSJuerg Haefliger u8 reg; 17749431996fSJuerg Haefliger 17759431996fSJuerg Haefliger data->config = dme1737_read(client, DME1737_REG_CONFIG); 17769431996fSJuerg Haefliger /* Inform if part is not monitoring/started */ 17779431996fSJuerg Haefliger if (!(data->config & 0x01)) { 17789431996fSJuerg Haefliger if (!force_start) { 17799431996fSJuerg Haefliger dev_err(&client->dev, "Device is not monitoring. " 17809431996fSJuerg Haefliger "Use the force_start load parameter to " 17819431996fSJuerg Haefliger "override.\n"); 17829431996fSJuerg Haefliger return -EFAULT; 17839431996fSJuerg Haefliger } 17849431996fSJuerg Haefliger 17859431996fSJuerg Haefliger /* Force monitoring */ 17869431996fSJuerg Haefliger data->config |= 0x01; 17879431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_CONFIG, data->config); 17889431996fSJuerg Haefliger } 17899431996fSJuerg Haefliger /* Inform if part is not ready */ 17909431996fSJuerg Haefliger if (!(data->config & 0x04)) { 17919431996fSJuerg Haefliger dev_err(&client->dev, "Device is not ready.\n"); 17929431996fSJuerg Haefliger return -EFAULT; 17939431996fSJuerg Haefliger } 17949431996fSJuerg Haefliger 17959431996fSJuerg Haefliger data->config2 = dme1737_read(client, DME1737_REG_CONFIG2); 17969431996fSJuerg Haefliger /* Check if optional fan3 input is enabled */ 17979431996fSJuerg Haefliger if (data->config2 & 0x04) { 17989431996fSJuerg Haefliger data->has_fan |= (1 << 2); 17999431996fSJuerg Haefliger } 18009431996fSJuerg Haefliger 18019431996fSJuerg Haefliger /* Fan4 and pwm3 are only available if the client's I2C address 18029431996fSJuerg Haefliger * is the default 0x2e. Otherwise the I/Os associated with these 18039431996fSJuerg Haefliger * functions are used for addr enable/select. */ 18049431996fSJuerg Haefliger if (client->addr == 0x2e) { 18059431996fSJuerg Haefliger data->has_fan |= (1 << 3); 18069431996fSJuerg Haefliger data->has_pwm |= (1 << 2); 18079431996fSJuerg Haefliger } 18089431996fSJuerg Haefliger 18099431996fSJuerg Haefliger /* Determine if the optional fan[5-6] and/or pwm[5-6] are enabled. 18109431996fSJuerg Haefliger * For this, we need to query the runtime registers through the 18119431996fSJuerg Haefliger * Super-IO LPC interface. Try both config ports 0x2e and 0x4e. */ 18129431996fSJuerg Haefliger if (dme1737_sio_get_features(0x2e, client) && 18139431996fSJuerg Haefliger dme1737_sio_get_features(0x4e, client)) { 18149431996fSJuerg Haefliger dev_warn(&client->dev, "Failed to query Super-IO for optional " 18159431996fSJuerg Haefliger "features.\n"); 18169431996fSJuerg Haefliger } 18179431996fSJuerg Haefliger 18189431996fSJuerg Haefliger /* Fan1, fan2, pwm1, and pwm2 are always present */ 18199431996fSJuerg Haefliger data->has_fan |= 0x03; 18209431996fSJuerg Haefliger data->has_pwm |= 0x03; 18219431996fSJuerg Haefliger 18229431996fSJuerg Haefliger dev_info(&client->dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, " 18239431996fSJuerg Haefliger "fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n", 18249431996fSJuerg Haefliger (data->has_pwm & (1 << 2)) ? "yes" : "no", 18259431996fSJuerg Haefliger (data->has_pwm & (1 << 4)) ? "yes" : "no", 18269431996fSJuerg Haefliger (data->has_pwm & (1 << 5)) ? "yes" : "no", 18279431996fSJuerg Haefliger (data->has_fan & (1 << 2)) ? "yes" : "no", 18289431996fSJuerg Haefliger (data->has_fan & (1 << 3)) ? "yes" : "no", 18299431996fSJuerg Haefliger (data->has_fan & (1 << 4)) ? "yes" : "no", 18309431996fSJuerg Haefliger (data->has_fan & (1 << 5)) ? "yes" : "no"); 18319431996fSJuerg Haefliger 18329431996fSJuerg Haefliger reg = dme1737_read(client, DME1737_REG_TACH_PWM); 18339431996fSJuerg Haefliger /* Inform if fan-to-pwm mapping differs from the default */ 18349431996fSJuerg Haefliger if (reg != 0xa4) { 18359431996fSJuerg Haefliger dev_warn(&client->dev, "Non-standard fan to pwm mapping: " 18369431996fSJuerg Haefliger "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, " 18379431996fSJuerg Haefliger "fan4->pwm%d. Please report to the driver " 18389431996fSJuerg Haefliger "maintainer.\n", 18399431996fSJuerg Haefliger (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1, 18409431996fSJuerg Haefliger ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1); 18419431996fSJuerg Haefliger } 18429431996fSJuerg Haefliger 18439431996fSJuerg Haefliger /* Switch pwm[1-3] to manual mode if they are currently disabled and 18449431996fSJuerg Haefliger * set the duty-cycles to 0% (which is identical to the PWMs being 18459431996fSJuerg Haefliger * disabled). */ 18469431996fSJuerg Haefliger if (!(data->config & 0x02)) { 18479431996fSJuerg Haefliger for (ix = 0; ix < 3; ix++) { 18489431996fSJuerg Haefliger data->pwm_config[ix] = dme1737_read(client, 18499431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix)); 18509431996fSJuerg Haefliger if ((data->has_pwm & (1 << ix)) && 18519431996fSJuerg Haefliger (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) { 18529431996fSJuerg Haefliger dev_info(&client->dev, "Switching pwm%d to " 18539431996fSJuerg Haefliger "manual mode.\n", ix + 1); 18549431996fSJuerg Haefliger data->pwm_config[ix] = PWM_EN_TO_REG(1, 18559431996fSJuerg Haefliger data->pwm_config[ix]); 18569431996fSJuerg Haefliger dme1737_write(client, DME1737_REG_PWM(ix), 0); 18579431996fSJuerg Haefliger dme1737_write(client, 18589431996fSJuerg Haefliger DME1737_REG_PWM_CONFIG(ix), 18599431996fSJuerg Haefliger data->pwm_config[ix]); 18609431996fSJuerg Haefliger } 18619431996fSJuerg Haefliger } 18629431996fSJuerg Haefliger } 18639431996fSJuerg Haefliger 18649431996fSJuerg Haefliger /* Initialize the default PWM auto channels zone (acz) assignments */ 18659431996fSJuerg Haefliger data->pwm_acz[0] = 1; /* pwm1 -> zone1 */ 18669431996fSJuerg Haefliger data->pwm_acz[1] = 2; /* pwm2 -> zone2 */ 18679431996fSJuerg Haefliger data->pwm_acz[2] = 4; /* pwm3 -> zone3 */ 18689431996fSJuerg Haefliger 18699431996fSJuerg Haefliger /* Set VRM */ 18709431996fSJuerg Haefliger data->vrm = vid_which_vrm(); 18719431996fSJuerg Haefliger 18729431996fSJuerg Haefliger return 0; 18739431996fSJuerg Haefliger } 18749431996fSJuerg Haefliger 18759431996fSJuerg Haefliger static int dme1737_detect(struct i2c_adapter *adapter, int address, 18769431996fSJuerg Haefliger int kind) 18779431996fSJuerg Haefliger { 18789431996fSJuerg Haefliger u8 company, verstep = 0; 18799431996fSJuerg Haefliger struct i2c_client *client; 18809431996fSJuerg Haefliger struct dme1737_data *data; 18819431996fSJuerg Haefliger int ix, err = 0; 18829431996fSJuerg Haefliger const char *name; 18839431996fSJuerg Haefliger 18849431996fSJuerg Haefliger if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 18859431996fSJuerg Haefliger goto exit; 18869431996fSJuerg Haefliger } 18879431996fSJuerg Haefliger 18889431996fSJuerg Haefliger if (!(data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL))) { 18899431996fSJuerg Haefliger err = -ENOMEM; 18909431996fSJuerg Haefliger goto exit; 18919431996fSJuerg Haefliger } 18929431996fSJuerg Haefliger 18939431996fSJuerg Haefliger client = &data->client; 18949431996fSJuerg Haefliger i2c_set_clientdata(client, data); 18959431996fSJuerg Haefliger client->addr = address; 18969431996fSJuerg Haefliger client->adapter = adapter; 18979431996fSJuerg Haefliger client->driver = &dme1737_driver; 18989431996fSJuerg Haefliger 18999431996fSJuerg Haefliger /* A negative kind means that the driver was loaded with no force 19009431996fSJuerg Haefliger * parameter (default), so we must identify the chip. */ 19019431996fSJuerg Haefliger if (kind < 0) { 19029431996fSJuerg Haefliger company = dme1737_read(client, DME1737_REG_COMPANY); 19039431996fSJuerg Haefliger verstep = dme1737_read(client, DME1737_REG_VERSTEP); 19049431996fSJuerg Haefliger 19059431996fSJuerg Haefliger if (!((company == DME1737_COMPANY_SMSC) && 19069431996fSJuerg Haefliger ((verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP))) { 19079431996fSJuerg Haefliger err = -ENODEV; 19089431996fSJuerg Haefliger goto exit_kfree; 19099431996fSJuerg Haefliger } 19109431996fSJuerg Haefliger } 19119431996fSJuerg Haefliger 19129431996fSJuerg Haefliger kind = dme1737; 19139431996fSJuerg Haefliger name = "dme1737"; 19149431996fSJuerg Haefliger 19159431996fSJuerg Haefliger /* Fill in the remaining client fields and put it into the global 19169431996fSJuerg Haefliger * list */ 19179431996fSJuerg Haefliger strlcpy(client->name, name, I2C_NAME_SIZE); 19189431996fSJuerg Haefliger mutex_init(&data->update_lock); 19199431996fSJuerg Haefliger 19209431996fSJuerg Haefliger /* Tell the I2C layer a new client has arrived */ 19219431996fSJuerg Haefliger if ((err = i2c_attach_client(client))) { 19229431996fSJuerg Haefliger goto exit_kfree; 19239431996fSJuerg Haefliger } 19249431996fSJuerg Haefliger 19259431996fSJuerg Haefliger /* Initialize the DME1737 chip */ 19269431996fSJuerg Haefliger if ((err = dme1737_init_client(client))) { 19279431996fSJuerg Haefliger goto exit_detach; 19289431996fSJuerg Haefliger } 19299431996fSJuerg Haefliger 19309431996fSJuerg Haefliger /* Create standard sysfs attributes */ 19319431996fSJuerg Haefliger if ((err = sysfs_create_group(&client->dev.kobj, &dme1737_group))) { 19329431996fSJuerg Haefliger goto exit_detach; 19339431996fSJuerg Haefliger } 19349431996fSJuerg Haefliger 19359431996fSJuerg Haefliger /* Create fan sysfs attributes */ 19369431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { 19379431996fSJuerg Haefliger if (data->has_fan & (1 << ix)) { 19389431996fSJuerg Haefliger if ((err = sysfs_create_group(&client->dev.kobj, 19399431996fSJuerg Haefliger &dme1737_fan_group[ix]))) { 19409431996fSJuerg Haefliger goto exit_remove; 19419431996fSJuerg Haefliger } 19429431996fSJuerg Haefliger } 19439431996fSJuerg Haefliger } 19449431996fSJuerg Haefliger 19459431996fSJuerg Haefliger /* Create PWM sysfs attributes */ 19469431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) { 19479431996fSJuerg Haefliger if (data->has_pwm & (1 << ix)) { 19489431996fSJuerg Haefliger if ((err = sysfs_create_group(&client->dev.kobj, 19499431996fSJuerg Haefliger &dme1737_pwm_group[ix]))) { 19509431996fSJuerg Haefliger goto exit_remove; 19519431996fSJuerg Haefliger } 19529431996fSJuerg Haefliger } 19539431996fSJuerg Haefliger } 19549431996fSJuerg Haefliger 19559431996fSJuerg Haefliger /* Inform if the device is locked. Otherwise change the permissions of 19569431996fSJuerg Haefliger * selected attributes from read-only to read-writeable. */ 19579431996fSJuerg Haefliger if (data->config & 0x02) { 19589431996fSJuerg Haefliger dev_info(&client->dev, "Device is locked. Some attributes " 19599431996fSJuerg Haefliger "will be read-only.\n"); 19609431996fSJuerg Haefliger } else { 19619431996fSJuerg Haefliger /* Change permissions of standard attributes */ 19629431996fSJuerg Haefliger dme1737_chmod_group(client, &dme1737_lock_group, 19639431996fSJuerg Haefliger S_IRUGO | S_IWUSR); 19649431996fSJuerg Haefliger 19659431996fSJuerg Haefliger /* Change permissions of PWM attributes */ 19669431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_lock_group); ix++) { 19679431996fSJuerg Haefliger if (data->has_pwm & (1 << ix)) { 19689431996fSJuerg Haefliger dme1737_chmod_group(client, 19699431996fSJuerg Haefliger &dme1737_pwm_lock_group[ix], 19709431996fSJuerg Haefliger S_IRUGO | S_IWUSR); 19719431996fSJuerg Haefliger } 19729431996fSJuerg Haefliger } 19739431996fSJuerg Haefliger 19749431996fSJuerg Haefliger /* Change permissions of pwm[1-3] if in manual mode */ 19759431996fSJuerg Haefliger for (ix = 0; ix < 3; ix++) { 19769431996fSJuerg Haefliger if ((data->has_pwm & (1 << ix)) && 19779431996fSJuerg Haefliger (PWM_EN_FROM_REG(data->pwm_config[ix]) == 1)) { 19789431996fSJuerg Haefliger dme1737_chmod_file(client, 19799431996fSJuerg Haefliger dme1737_attr_pwm[ix], 19809431996fSJuerg Haefliger S_IRUGO | S_IWUSR); 19819431996fSJuerg Haefliger } 19829431996fSJuerg Haefliger } 19839431996fSJuerg Haefliger } 19849431996fSJuerg Haefliger 19859431996fSJuerg Haefliger /* Register device */ 1986*1beeffe4STony Jones data->hwmon_dev = hwmon_device_register(&client->dev); 1987*1beeffe4STony Jones if (IS_ERR(data->hwmon_dev)) { 1988*1beeffe4STony Jones err = PTR_ERR(data->hwmon_dev); 19899431996fSJuerg Haefliger goto exit_remove; 19909431996fSJuerg Haefliger } 19919431996fSJuerg Haefliger 19929431996fSJuerg Haefliger dev_info(&adapter->dev, "Found a DME1737 chip at 0x%02x " 19939431996fSJuerg Haefliger "(rev 0x%02x)\n", client->addr, verstep); 19949431996fSJuerg Haefliger 19959431996fSJuerg Haefliger return 0; 19969431996fSJuerg Haefliger 19979431996fSJuerg Haefliger exit_remove: 19989431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { 19999431996fSJuerg Haefliger if (data->has_fan & (1 << ix)) { 20009431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, 20019431996fSJuerg Haefliger &dme1737_fan_group[ix]); 20029431996fSJuerg Haefliger } 20039431996fSJuerg Haefliger } 20049431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) { 20059431996fSJuerg Haefliger if (data->has_pwm & (1 << ix)) { 20069431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, 20079431996fSJuerg Haefliger &dme1737_pwm_group[ix]); 20089431996fSJuerg Haefliger } 20099431996fSJuerg Haefliger } 20109431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, &dme1737_group); 20119431996fSJuerg Haefliger exit_detach: 20129431996fSJuerg Haefliger i2c_detach_client(client); 20139431996fSJuerg Haefliger exit_kfree: 20149431996fSJuerg Haefliger kfree(data); 20159431996fSJuerg Haefliger exit: 20169431996fSJuerg Haefliger return err; 20179431996fSJuerg Haefliger } 20189431996fSJuerg Haefliger 20199431996fSJuerg Haefliger static int dme1737_attach_adapter(struct i2c_adapter *adapter) 20209431996fSJuerg Haefliger { 20219431996fSJuerg Haefliger if (!(adapter->class & I2C_CLASS_HWMON)) { 20229431996fSJuerg Haefliger return 0; 20239431996fSJuerg Haefliger } 20249431996fSJuerg Haefliger 20259431996fSJuerg Haefliger return i2c_probe(adapter, &addr_data, dme1737_detect); 20269431996fSJuerg Haefliger } 20279431996fSJuerg Haefliger 20289431996fSJuerg Haefliger static int dme1737_detach_client(struct i2c_client *client) 20299431996fSJuerg Haefliger { 20309431996fSJuerg Haefliger struct dme1737_data *data = i2c_get_clientdata(client); 20319431996fSJuerg Haefliger int ix, err; 20329431996fSJuerg Haefliger 2033*1beeffe4STony Jones hwmon_device_unregister(data->hwmon_dev); 20349431996fSJuerg Haefliger 20359431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_fan_group); ix++) { 20369431996fSJuerg Haefliger if (data->has_fan & (1 << ix)) { 20379431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, 20389431996fSJuerg Haefliger &dme1737_fan_group[ix]); 20399431996fSJuerg Haefliger } 20409431996fSJuerg Haefliger } 20419431996fSJuerg Haefliger for (ix = 0; ix < ARRAY_SIZE(dme1737_pwm_group); ix++) { 20429431996fSJuerg Haefliger if (data->has_pwm & (1 << ix)) { 20439431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, 20449431996fSJuerg Haefliger &dme1737_pwm_group[ix]); 20459431996fSJuerg Haefliger } 20469431996fSJuerg Haefliger } 20479431996fSJuerg Haefliger sysfs_remove_group(&client->dev.kobj, &dme1737_group); 20489431996fSJuerg Haefliger 20499431996fSJuerg Haefliger if ((err = i2c_detach_client(client))) { 20509431996fSJuerg Haefliger return err; 20519431996fSJuerg Haefliger } 20529431996fSJuerg Haefliger 20539431996fSJuerg Haefliger kfree(data); 20549431996fSJuerg Haefliger return 0; 20559431996fSJuerg Haefliger } 20569431996fSJuerg Haefliger 20579431996fSJuerg Haefliger static struct i2c_driver dme1737_driver = { 20589431996fSJuerg Haefliger .driver = { 20599431996fSJuerg Haefliger .name = "dme1737", 20609431996fSJuerg Haefliger }, 20619431996fSJuerg Haefliger .attach_adapter = dme1737_attach_adapter, 20629431996fSJuerg Haefliger .detach_client = dme1737_detach_client, 20639431996fSJuerg Haefliger }; 20649431996fSJuerg Haefliger 20659431996fSJuerg Haefliger static int __init dme1737_init(void) 20669431996fSJuerg Haefliger { 20679431996fSJuerg Haefliger return i2c_add_driver(&dme1737_driver); 20689431996fSJuerg Haefliger } 20699431996fSJuerg Haefliger 20709431996fSJuerg Haefliger static void __exit dme1737_exit(void) 20719431996fSJuerg Haefliger { 20729431996fSJuerg Haefliger i2c_del_driver(&dme1737_driver); 20739431996fSJuerg Haefliger } 20749431996fSJuerg Haefliger 20759431996fSJuerg Haefliger MODULE_AUTHOR("Juerg Haefliger <juergh@gmail.com>"); 20769431996fSJuerg Haefliger MODULE_DESCRIPTION("DME1737 sensors"); 20779431996fSJuerg Haefliger MODULE_LICENSE("GPL"); 20789431996fSJuerg Haefliger 20799431996fSJuerg Haefliger module_init(dme1737_init); 20809431996fSJuerg Haefliger module_exit(dme1737_exit); 2081