lm87.c revision 1da177e4c3f41524e886b7f1b8a0c1fc7321cac
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * lm87.c 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000 Frodo Looijaard <frodol@dds.nl> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Philip Edelbrock <phil@netroedge.com> 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Stephen Rousset <stephen.rousset@rocketlogix.com> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Dan Eaton <dan.eaton@rocketlogix.com> 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Original port to Linux 2.6 by Jeff Oliver. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 is a sensor chip made by National Semiconductor. It monitors up 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to 8 voltages (including its own power source), up to three temperatures 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (its own plus up to two external ones) and up to two fans. The default 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * configuration is 6 voltages, two temperatures and two fans (see below). 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Voltages are scaled internally with ratios such that the nominal value of 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * each voltage correspond to a register value of 192 (which means a 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * resolution of about 0.5% of the nominal value). Temperature values are 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * reported with a 1 deg resolution and a 3-4 deg accuracy. Complete 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * datasheet can be obtained from National's website at: 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * http://www.national.com/pf/LM/LM87.html 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Some functions share pins, so not all functions are available at the same 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * time. Which are depends on the hardware setup. This driver assumes that 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the BIOS configured the chip correctly. In that respect, it differs from 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the original driver (from lm_sensors for Linux 2.4), which would force the 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LM87 to an arbitrary, compile-time chosen mode, regardless of the actual 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * chipset wiring. 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For reference, here is the list of exclusive functions: 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - in0+in5 (default) or temp3 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fan1 (default) or in6 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - fan2 (default) or in7 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - VID lines (default) or IRQ lines (not handled by this driver) 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 additionally features an analog output, supposedly usable to 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * control the speed of a fan. All new chips use pulse width modulation 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * instead. The LM87 is the only hardware monitoring chipset I know of 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which uses amplitude modulation. Be careful when using this feature. 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/config.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/jiffies.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/i2c.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/i2c-sensor.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/i2c-vid.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Addresses to scan 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * LM87 has three possible addresses: 0x2c, 0x2d and 0x2e. 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned int normal_isa[] = { I2C_CLIENT_ISA_END }; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Insmod parameters 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsSENSORS_INSMOD_1(lm87); 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 registers 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..5 */ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN(nr) (0x20 + (nr)) 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN_MAX(nr) (0x2B + (nr) * 2) 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_IN_MIN(nr) (0x2C + (nr) * 2) 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN(nr) (0x28 + (nr)) 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN_MIN(nr) (0x1A + (nr)) 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AIN_MAX(nr) (0x3B + (nr)) 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP[3] = { 0x27, 0x26, 0x20 }; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP_HIGH[3] = { 0x39, 0x37, 0x2B }; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u8 LM87_REG_TEMP_LOW[3] = { 0x3A, 0x38, 0x2C }; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_INT_LOCK 0x13 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_EXT_LOCK 0x14 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_INT 0x17 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_TEMP_HW_EXT 0x18 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_FAN(nr) (0x28 + (nr)) 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_FAN_MIN(nr) (0x3B + (nr)) 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_AOUT 0x19 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_CONFIG 0x40 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_CHANNEL_MODE 0x16 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_VID_FAN_DIV 0x47 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_VID4 0x49 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_ALARMS1 0x41 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_ALARMS2 0x42 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_COMPANY_ID 0x3E 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define LM87_REG_REVISION 0x3F 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Conversions and various macros 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LM87 uses signed 8-bit values for temperatures. 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192) 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) * 192 >= (scale) * 255 ? 255 : \ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((val) * 192 + (scale)/2) / (scale)) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TEMP_FROM_REG(reg) ((reg) * 1000) 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TEMP_TO_REG(val) ((val) <= -127500 ? -128 : \ 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) >= 126500 ? 127 : \ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (((val) < 0 ? (val)-500 : (val)+500) / 1000)) 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FAN_FROM_REG(reg,div) ((reg) == 255 || (reg) == 0 ? 0 : \ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1350000 + (reg)*(div) / 2) / ((reg)*(div)) 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FAN_TO_REG(val,div) ((val)*(div) * 255 <= 1350000 ? 255 : \ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (1350000 + (val)*(div) / 2) / ((val)*(div))) 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FAN_DIV_FROM_REG(reg) (1 << (reg)) 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* analog out is 9.80mV/LSB */ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AOUT_FROM_REG(reg) (((reg) * 98 + 5) / 10) 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AOUT_TO_REG(val) ((val) <= 0 ? 0 : \ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (val) >= 2500 ? 255 : \ 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((val) * 10 + 49) / 98) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* nr in 0..1 */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_NO_FAN(nr) (1 << (nr)) 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_TEMP3 (1 << 2) 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_VCC_5V (1 << 3) 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define CHAN_NO_VID (1 << 8) 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Functions declaration 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_attach_adapter(struct i2c_adapter *adapter); 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_detect(struct i2c_adapter *adapter, int address, int kind); 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void lm87_init_client(struct i2c_client *client); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_detach_client(struct i2c_client *client); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct lm87_data *lm87_update_device(struct device *dev); 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver data (common to all clients) 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct i2c_driver lm87_driver = { 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .owner = THIS_MODULE, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "lm87", 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id = I2C_DRIVERID_LM87, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .flags = I2C_DF_NOTIFY, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attach_adapter = lm87_attach_adapter, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .detach_client = lm87_detach_client, 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Client data (each client gets its own) 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct lm87_data { 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client client; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct semaphore update_lock; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char valid; /* zero until following fields are valid */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long last_updated; /* In jiffies */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 channel; /* register value */ 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in[8]; /* register value */ 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in_max[8]; /* register value */ 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 in_min[8]; /* register value */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 in_scale[8]; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp[3]; /* register value */ 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_high[3]; /* register value */ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_low[3]; /* register value */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_crit_int; /* min of two register values */ 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds s8 temp_crit_ext; /* min of two register values */ 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan[2]; /* register value */ 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan_min[2]; /* register value */ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 fan_div[2]; /* register value, shifted right */ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 aout; /* register value */ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 alarms; /* register values, combined */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 vid; /* register values, combined */ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 vrm; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sysfs stuff 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int lm87_read_value(struct i2c_client *client, u8 reg) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_smbus_read_byte_data(client, reg); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int lm87_write_value(struct i2c_client *client, u8 reg, u8 value) 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_smbus_write_byte_data(client, reg, value); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define show_in(offset) \ 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_in##offset##_input(struct device *dev, char *buf) \ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%u\n", IN_FROM_REG(data->in[offset], \ 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[offset])); \ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_in##offset##_min(struct device *dev, char *buf) \ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[offset], \ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[offset])); \ 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_in##offset##_max(struct device *dev, char *buf) \ 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[offset], \ 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[offset])); \ 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(in##offset##_input, S_IRUGO, \ 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_in##offset##_input, NULL); 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(0); 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(1); 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(2); 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(3); 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(4); 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(5); 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(6); 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_in(7); 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_in_min(struct device *dev, const char *buf, int nr) 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_min[nr] = IN_TO_REG(val, data->in_scale[nr]); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, nr<6 ? LM87_REG_IN_MIN(nr) : 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_AIN_MIN(nr-6), data->in_min[nr]); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_in_max(struct device *dev, const char *buf, int nr) 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_max[nr] = IN_TO_REG(val, data->in_scale[nr]); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, nr<6 ? LM87_REG_IN_MAX(nr) : 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_AIN_MAX(nr-6), data->in_max[nr]); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_in(offset) \ 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_in##offset##_min(struct device *dev, \ 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *buf, size_t count) \ 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_in_min(dev, buf, offset); \ 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_in##offset##_max(struct device *dev, \ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *buf, size_t count) \ 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_in_max(dev, buf, offset); \ 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_in##offset##_min, set_in##offset##_min); \ 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_in##offset##_max, set_in##offset##_max); 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(0); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(1); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(2); 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(3); 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(4); 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(5); 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(6); 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_in(7); 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define show_temp(offset) \ 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_temp##offset##_input(struct device *dev, char *buf) \ 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[offset-1])); \ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_temp##offset##_low(struct device *dev, char *buf) \ 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[offset-1])); \ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_temp##offset##_high(struct device *dev, char *buf) \ 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[offset-1])); \ 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}\ 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_temp##offset##_input, NULL); 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_temp(1); 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_temp(2); 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_temp(3); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_temp_low(struct device *dev, const char *buf, int nr) 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_low[nr] = TEMP_TO_REG(val); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_LOW[nr], data->temp_low[nr]); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_temp_high(struct device *dev, const char *buf, int nr) 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_high[nr] = TEMP_TO_REG(val); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_HIGH[nr], data->temp_high[nr]); 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_temp(offset) \ 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_temp##offset##_low(struct device *dev, \ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *buf, size_t count) \ 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_temp_low(dev, buf, offset-1); \ 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_temp##offset##_high(struct device *dev, \ 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *buf, size_t count) \ 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_temp_high(dev, buf, offset-1); \ 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_temp##offset##_high, set_temp##offset##_high); \ 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_temp##offset##_low, set_temp##offset##_low); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(1); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(2); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_temp(3); 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_temp_crit_int(struct device *dev, char *buf) 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_int)); 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_temp_crit_ext(struct device *dev, char *buf) 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit_ext)); 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit_int, NULL); 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp_crit_ext, NULL); 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(temp3_crit, S_IRUGO, show_temp_crit_ext, NULL); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define show_fan(offset) \ 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_fan##offset##_input(struct device *dev, char *buf) \ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[offset-1], \ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \ 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_fan##offset##_min(struct device *dev, char *buf) \ 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[offset-1], \ 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[offset-1]))); \ 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_fan##offset##_div(struct device *dev, char *buf) \ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); \ 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", FAN_DIV_FROM_REG(data->fan_div[offset-1])); \ 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fan##offset##_input, NULL); 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fan(1); 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fan(2); 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void set_fan_min(struct device *dev, const char *buf, int nr) 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr] = FAN_TO_REG(val, 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[nr])); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_FAN_MIN(nr), data->fan_min[nr]); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Note: we save and restore the fan minimum here, because its value is 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds determined in part by the fan clock divider. This follows the principle 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds of least suprise; the user doesn't expect the fan minimum to change just 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds because the divider changed. */ 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_fan_div(struct device *dev, const char *buf, 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count, int nr) 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long min; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 reg; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds min = FAN_FROM_REG(data->fan_min[nr], 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FAN_DIV_FROM_REG(data->fan_div[nr])); 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (val) { 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: data->fan_div[nr] = 0; break; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: data->fan_div[nr] = 1; break; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 4: data->fan_div[nr] = 2; break; 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 8: data->fan_div[nr] = 3; break; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (nr) { 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = (reg & 0xCF) | (data->fan_div[0] << 4); 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds reg = (reg & 0x3F) | (data->fan_div[1] << 6); 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_VID_FAN_DIV, reg); 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr] = FAN_TO_REG(min, val); 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_FAN_MIN(nr), 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[nr]); 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define set_fan(offset) \ 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_fan##offset##_min(struct device *dev, const char *buf, \ 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) \ 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fan_min(dev, buf, offset-1); \ 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_fan##offset##_div(struct device *dev, const char *buf, \ 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) \ 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return set_fan_div(dev, buf, count, offset-1); \ 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fan##offset##_min, set_fan##offset##_min); \ 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fan##offset##_div, set_fan##offset##_div); 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_fan(1); 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsset_fan(2); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_alarms(struct device *dev, char *buf) 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", data->alarms); 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_vid(struct device *dev, char *buf) 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_vrm(struct device *dev, char *buf) 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", data->vrm); 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_vrm(struct device *dev, const char *buf, size_t count) 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->vrm = simple_strtoul(buf, NULL, 10); 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_aout(struct device *dev, char *buf) 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = lm87_update_device(dev); 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout)); 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t set_aout(struct device *dev, const char *buf, size_t count) 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds long val = simple_strtol(buf, NULL, 10); 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->aout = AOUT_TO_REG(val); 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_AOUT, data->aout); 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout); 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Real code 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_attach_adapter(struct i2c_adapter *adapter) 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(adapter->class & I2C_CLASS_HWMON)) 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_detect(adapter, &addr_data, lm87_detect); 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The following function does more than just detection. If detection 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * succeeds, it also registers the new chip. 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_detect(struct i2c_adapter *adapter, int address, int kind) 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *new_client; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data = kmalloc(sizeof(struct lm87_data), GFP_KERNEL))) { 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOMEM; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(data, 0, sizeof(struct lm87_data)); 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* The common I2C client data is placed right before the 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87-specific data. */ 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_client = &data->client; 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i2c_set_clientdata(new_client, data); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_client->addr = address; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_client->adapter = adapter; 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_client->driver = &lm87_driver; 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_client->flags = 0; 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Default to an LM87 if forced */ 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kind == 0) 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kind = lm87; 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Now, we do the remaining detection. */ 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (kind < 0) { 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 rev = lm87_read_value(new_client, LM87_REG_REVISION); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rev < 0x01 || rev > 0x08 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds || (lm87_read_value(new_client, LM87_REG_CONFIG) & 0x80) 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds || lm87_read_value(new_client, LM87_REG_COMPANY_ID) != 0x02) { 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_dbg(&adapter->dev, 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "LM87 detection failed at 0x%02x.\n", 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds address); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_free; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* We can fill in the remaining client fields */ 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(new_client->name, "lm87", I2C_NAME_SIZE); 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->valid = 0; 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_MUTEX(&data->update_lock); 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Tell the I2C layer a new client has arrived */ 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = i2c_attach_client(new_client))) 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_free; 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialize the LM87 chip */ 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_init_client(new_client); 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[0] = 2500; 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[1] = 2700; 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[2] = (data->channel & CHAN_VCC_5V) ? 5000 : 3300; 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[3] = 5000; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[4] = 12000; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[5] = 2700; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[6] = 1875; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_scale[7] = 1875; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Register sysfs hooks */ 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in1_input); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in1_min); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in1_max); 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in2_input); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in2_min); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in2_max); 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in3_input); 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in3_min); 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in3_max); 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in4_input); 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in4_min); 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in4_max); 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_NO_FAN(0)) { 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in6_input); 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in6_min); 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in6_max); 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan1_input); 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan1_min); 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan1_div); 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_NO_FAN(1)) { 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in7_input); 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in7_min); 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in7_max); 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan2_input); 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan2_min); 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_fan2_div); 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp1_input); 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp1_max); 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp1_min); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp1_crit); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp2_input); 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp2_max); 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp2_min); 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp2_crit); 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_TEMP3) { 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp3_input); 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp3_max); 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp3_min); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_temp3_crit); 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in0_input); 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in0_min); 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in0_max); 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in5_input); 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in5_min); 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_in5_max); 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data->channel & CHAN_NO_VID)) { 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_cpu0_vid); 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_vrm); 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_alarms); 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_create_file(&new_client->dev, &dev_attr_aout_output); 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit_free: 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(data); 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void lm87_init_client(struct i2c_client *client) 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 config; 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->channel = lm87_read_value(client, LM87_REG_CHANNEL_MODE); 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->vrm = i2c_which_vrm(); 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds config = lm87_read_value(client, LM87_REG_CONFIG); 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(config & 0x01)) { 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Limits are left uninitialized after power-up */ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 1; i < 6; i++) { 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_IN_MIN(i), 0x00); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_IN_MAX(i), 0xFF); 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_HIGH[i], 0x7F); 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_LOW[i], 0x00); 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_AIN_MIN(i), 0x00); 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_AIN_MAX(i), 0xFF); 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_TEMP3) { 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_HIGH[2], 0x7F); 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_TEMP_LOW[2], 0x00); 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_IN_MIN(0), 0x00); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_IN_MAX(0), 0xFF); 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((config & 0x81) != 0x01) { 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Start monitoring */ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lm87_write_value(client, LM87_REG_CONFIG, 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (config & 0xF7) | 0x01); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int lm87_detach_client(struct i2c_client *client) 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((err = i2c_detach_client(client))) { 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_err(&client->dev, "Client deregistration failed, " 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "client not detached.\n"); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i2c_get_clientdata(client)); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct lm87_data *lm87_update_device(struct device *dev) 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(dev); 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct lm87_data *data = i2c_get_clientdata(client); 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&data->update_lock); 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j; 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_dbg(&client->dev, "Updating data.\n"); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = (data->channel & CHAN_TEMP3) ? 1 : 0; 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = (data->channel & CHAN_TEMP3) ? 5 : 6; 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (; i < j; i++) { 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in[i] = lm87_read_value(client, 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_IN(i)); 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_min[i] = lm87_read_value(client, 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_IN_MIN(i)); 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_max[i] = lm87_read_value(client, 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_IN_MAX(i)); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (data->channel & CHAN_NO_FAN(i)) { 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in[6+i] = lm87_read_value(client, 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_AIN(i)); 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_max[6+i] = lm87_read_value(client, 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_AIN_MAX(i)); 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->in_min[6+i] = lm87_read_value(client, 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_AIN_MIN(i)); 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan[i] = lm87_read_value(client, 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_FAN(i)); 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_min[i] = lm87_read_value(client, 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_FAN_MIN(i)); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = (data->channel & CHAN_TEMP3) ? 3 : 2; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0 ; i < j; i++) { 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp[i] = lm87_read_value(client, 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_TEMP[i]); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_high[i] = lm87_read_value(client, 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_TEMP_HIGH[i]); 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_low[i] = lm87_read_value(client, 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds LM87_REG_TEMP_LOW[i]); 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = lm87_read_value(client, LM87_REG_TEMP_HW_INT_LOCK); 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = lm87_read_value(client, LM87_REG_TEMP_HW_INT); 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_crit_int = min(i, j); 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = lm87_read_value(client, LM87_REG_TEMP_HW_EXT_LOCK); 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j = lm87_read_value(client, LM87_REG_TEMP_HW_EXT); 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->temp_crit_ext = min(i, j); 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = lm87_read_value(client, LM87_REG_VID_FAN_DIV); 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_div[0] = (i >> 4) & 0x03; 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->fan_div[1] = (i >> 6) & 0x03; 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->vid = (i & 0x0F) 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | (lm87_read_value(client, LM87_REG_VID4) & 0x01) 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds << 4; 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->alarms = lm87_read_value(client, LM87_REG_ALARMS1) 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds | (lm87_read_value(client, LM87_REG_ALARMS2) 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds << 8); 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->aout = lm87_read_value(client, LM87_REG_AOUT); 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->last_updated = jiffies; 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->valid = 1; 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&data->update_lock); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return data; 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init sensors_lm87_init(void) 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return i2c_add_driver(&lm87_driver); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit sensors_lm87_exit(void) 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i2c_del_driver(&lm87_driver); 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Jean Delvare <khali@linux-fr.org> and others"); 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("LM87 driver"); 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(sensors_lm87_init); 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(sensors_lm87_exit); 830