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https://github.com/lm-sensors/lm-sensors
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Rename pc87360-fan driver to pc87360.
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2419 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
@@ -1,56 +0,0 @@
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Kernel driver `pc87360-fan.o'
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=============================
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Status: Alpha, untested.
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Supported chips:
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* National Semiconductor PC87360, PC87363 and PC87364
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Addresses scanned: none, address read from Super I/O config space
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Datasheets:
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http://www.national.com/pf/PC/PC87360.html
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http://www.national.com/pf/PC/PC87363.html
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http://www.national.com/pf/PC/PC87364.html
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Authors: Jean Delvare <khali@linux-fr.org>
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Module Parameters
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-----------------
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None.
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Description
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-----------
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The National Semiconductor PC87360 Super I/O chip contains monitoring and
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PWM control circuitry for two fans. The PC87363 chip is similar, and the
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PC87364 chip has monitoring and PWM control for a third fan.
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Fan rotation speeds are reported in RPM (revolutions per minute). An alarm
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is triggered if the rotation speed has dropped below a programmable limit.
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Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give
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the readings more range or accuracy. Not all RPM values can accurately be
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represented, so some rounding is done. With a divider of 2, the lowest
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representable value is around 2600 RPM.
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A different alarm is also triggered if the fan speed is too low to be
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measured. It is suggested to increase the fan divisor in this case.
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PWM values are from 0 to 255.
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If an alarm triggers, it will remain triggered until the hardware register
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is read at least once. This means that the cause for the alarm may
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already have disappeared! Note that in the current implementation, all
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hardware registers are read whenever any data is read (unless it is less
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than 1.5 seconds since the last update). This means that you can easily
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miss once-only alarms.
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Limitations
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-----------
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This driver is read-only at the moment. Since I don't own a supported
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chip for testing, and the datasheet suggests that you shouldn't change
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values once the monitoring has started (this is normally done by the BIOS
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at boot time), I decided to play it safe.
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@@ -1,469 +0,0 @@
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/*
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* pc87360-fan.c - Part of lm_sensors, Linux kernel modules
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* for hardware monitoring
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* Copyright (C) 2004 Jean Delvare <khali@linux-fr.org>
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*
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* Copied from smsc47m1.c:
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* Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/ioport.h>
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#include <linux/i2c.h>
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#include <linux/i2c-proc.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include "version.h"
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static unsigned short normal_i2c[] = { SENSORS_I2C_END };
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static unsigned short normal_i2c_range[] = { SENSORS_I2C_END };
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static unsigned int normal_isa[] = { 0x0000, SENSORS_ISA_END };
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static unsigned int normal_isa_range[] = { SENSORS_ISA_END };
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static u8 devid;
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SENSORS_INSMOD_3(pc87360,pc87363,pc87364);
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/* modified from kernel/include/traps.c */
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#define REG 0x2e /* The register to read/write */
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#define DEV 0x07 /* Register: Logical device select */
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#define VAL 0x2f /* The value to read/write */
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#define FSCM 0x09 /* The device with the fan registers in it */
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#define DEVID 0x20 /* Register: Device ID */
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static inline void superio_outb(int reg, int val)
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{
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outb(reg, REG);
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outb(val, VAL);
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}
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static inline int superio_inb(int reg)
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{
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outb(reg, REG);
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return inb(VAL);
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}
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static inline void superio_select(void)
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{
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outb(DEV, REG);
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outb(FSCM, VAL);
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}
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static inline void superio_exit(void)
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{
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outb(0x02, REG);
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outb(0x02, VAL);
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}
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/*
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* The PC87360 (device id 0xE1) and PC87363 (device id 0xE8) monitor and
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* control two fans.
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* The PC87364 (device id 0xE4) monitors and controls three fans.
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*/
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#define PC87360_DEVID_MATCH(id) ((id) == 0xE1 || (id) == 0xE8 || (id) == 0xE4)
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#define PC87360_BASE_REG 0x60
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#define PC87360_ACTIVATE_REG 0x30
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#define PC87360_EXTENT 0x10
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/* nr has to be 0 or 1 (PC87360 and PC87363) or 2 (PC87364) */
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#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
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#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
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#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
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#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
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#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
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#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0: \
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960000/((val)*(div)))
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#define FAN_DIV_FROM_REG(val) (1 << ((val >> 5) & 0x03))
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#define PWM_FROM_REG(val) (val)
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#define ALARM_FROM_REG(val) ((val) & 0x07)
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struct pc87360_data {
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struct semaphore lock;
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int sysctl_id;
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struct semaphore update_lock;
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char valid; /* !=0 if following fields are valid */
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unsigned long last_updated; /* In jiffies */
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u8 fannr;
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u8 fan[3]; /* Register value */
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u8 fan_min[3]; /* Register value */
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u8 fan_status[3]; /* Register value */
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u8 pwm[3]; /* Register value */
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};
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static int pc87360_attach_adapter(struct i2c_adapter *adapter);
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static int pc87360_detect(struct i2c_adapter *adapter, int address,
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unsigned short flags, int kind);
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static int pc87360_detach_client(struct i2c_client *client);
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static int pc87360_read_value(struct i2c_client *client, u8 register);
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#if 0
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static int pc87360_write_value(struct i2c_client *client, u8 register,
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u8 value);
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#endif
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static void pc87360_update_client(struct i2c_client *client);
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static void pc87360_init_client(struct i2c_client *client);
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static int pc87360_find(int *address, u8 *devid);
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static void pc87360_fan(struct i2c_client *client, int operation,
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int ctl_name, int *nrels_mag, long *results);
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static void pc87360_fan_status(struct i2c_client *client, int operation,
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int ctl_name, int *nrels_mag, long *results);
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static void pc87360_fan_div(struct i2c_client *client, int operation,
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int ctl_name, int *nrels_mag, long *results);
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static void pc87360_pwm(struct i2c_client *client, int operation,
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int ctl_name, int *nrels_mag, long *results);
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static int pc87360_id = 0;
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static struct i2c_driver pc87360_driver = {
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.owner = THIS_MODULE,
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.name = "PC8736x fan monitor",
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.flags = I2C_DF_NOTIFY,
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.attach_adapter = pc87360_attach_adapter,
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.detach_client = pc87360_detach_client,
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};
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/* -- SENSORS SYSCTL START -- */
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#define PC87360_SYSCTL_FAN1 1101 /* Rotations/min */
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#define PC87360_SYSCTL_FAN2 1102
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#define PC87360_SYSCTL_FAN3 1103 /* PC87364 only */
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#define PC87360_SYSCTL_FAN_DIV 1201 /* 1, 2, 4 or 8 */
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#define PC87360_SYSCTL_FAN1_STATUS 1301 /* bit field */
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#define PC87360_SYSCTL_FAN2_STATUS 1302
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#define PC87360_SYSCTL_FAN3_STATUS 1303 /* PC87364 only */
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#define PC87360_SYSCTL_PWM1 1401 /* 0-255 */
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#define PC87360_SYSCTL_PWM2 1402
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#define PC87360_SYSCTL_PWM3 1403 /* PC87364 only */
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#define PC87360_ALARM_FAN_READY 0x01
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#define PC87360_ALARM_FAN_LOW 0x02
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#define PC87360_ALARM_FAN_OVERFLOW 0x04
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/* -- SENSORS SYSCTL END -- */
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static ctl_table pc87360_dir_table_template[] = { /* PC87363 too */
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{PC87360_SYSCTL_FAN1, "fan1", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan},
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{PC87360_SYSCTL_FAN2, "fan2", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan},
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{PC87360_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_div},
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{PC87360_SYSCTL_FAN1_STATUS, "fan1_status", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_status},
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{PC87360_SYSCTL_FAN2_STATUS, "fan2_status", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_status},
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{PC87360_SYSCTL_PWM1, "pwm1", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_pwm},
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{PC87360_SYSCTL_PWM2, "pwm2", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_pwm},
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{0}
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};
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static ctl_table pc87364_dir_table_template[] = {
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{PC87360_SYSCTL_FAN1, "fan1", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan},
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{PC87360_SYSCTL_FAN2, "fan2", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan},
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{PC87360_SYSCTL_FAN3, "fan3", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan},
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{PC87360_SYSCTL_FAN_DIV, "fan_div", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_div},
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{PC87360_SYSCTL_FAN1_STATUS, "fan1_status", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_status},
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{PC87360_SYSCTL_FAN2_STATUS, "fan2_status", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_status},
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{PC87360_SYSCTL_FAN3_STATUS, "fan3_status", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_fan_status},
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{PC87360_SYSCTL_PWM1, "pwm1", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_pwm},
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{PC87360_SYSCTL_PWM2, "pwm2", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_pwm},
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{PC87360_SYSCTL_PWM3, "pwm3", NULL, 0, 0444, NULL,
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&i2c_proc_real, &i2c_sysctl_real, NULL, &pc87360_pwm},
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{0}
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};
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static int pc87360_attach_adapter(struct i2c_adapter *adapter)
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{
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return i2c_detect(adapter, &addr_data, pc87360_detect);
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}
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static int pc87360_find(int *address, u8 *devid)
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{
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u16 val;
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/* no superio_enter */
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val = superio_inb(DEVID);
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if (!PC87360_DEVID_MATCH(val)) {
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superio_exit();
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return -ENODEV;
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}
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*devid = val;
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superio_select();
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val = superio_inb(PC87360_ACTIVATE_REG);
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if (!(val & 0x01)) {
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printk("pc87360-fan.o: device not activated\n");
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superio_exit();
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return -ENODEV;
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}
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val = (superio_inb(PC87360_BASE_REG) << 8)
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| superio_inb(PC87360_BASE_REG + 1);
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*address = val & ~(PC87360_EXTENT - 1);
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if (*address == 0) {
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printk("pc87360-fan.o: base address not set\n");
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superio_exit();
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return -ENODEV;
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}
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superio_exit();
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return 0;
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}
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int pc87360_detect(struct i2c_adapter *adapter, int address,
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unsigned short flags, int kind)
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{
|
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int i;
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struct i2c_client *new_client;
|
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struct pc87360_data *data;
|
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int err = 0;
|
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const char *type_name = "pc87360";
|
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const char *client_name = "PC8736x chip";
|
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|
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if (!i2c_is_isa_adapter(adapter)) {
|
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return 0;
|
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}
|
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|
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if (check_region(address, PC87360_EXTENT)) {
|
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printk("pc87360-fan.o: region 0x%x already in use!\n", address);
|
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return -ENODEV;
|
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}
|
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|
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if (!(new_client = kmalloc(sizeof(struct i2c_client) +
|
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sizeof(struct pc87360_data),
|
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GFP_KERNEL))) {
|
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return -ENOMEM;
|
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}
|
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|
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data = (struct pc87360_data *) (new_client + 1);
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new_client->addr = address;
|
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init_MUTEX(&data->lock);
|
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new_client->data = data;
|
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new_client->adapter = adapter;
|
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new_client->driver = &pc87360_driver;
|
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new_client->flags = 0;
|
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|
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data->fannr = (devid == 0xe4) ? 3 : 2;
|
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|
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request_region(address, PC87360_EXTENT, "pc87360-fan");
|
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strcpy(new_client->name, client_name);
|
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|
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new_client->id = pc87360_id++;
|
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data->valid = 0;
|
||||
init_MUTEX(&data->update_lock);
|
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|
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if ((err = i2c_attach_client(new_client)))
|
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goto ERROR1;
|
||||
|
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if ((i = i2c_register_entry((struct i2c_client *) new_client,
|
||||
type_name,
|
||||
(devid == 0xe4) ?
|
||||
pc87364_dir_table_template :
|
||||
pc87360_dir_table_template)) < 0) {
|
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err = i;
|
||||
goto ERROR2;
|
||||
}
|
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data->sysctl_id = i;
|
||||
|
||||
pc87360_init_client(new_client);
|
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return 0;
|
||||
|
||||
ERROR2:
|
||||
i2c_detach_client(new_client);
|
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ERROR1:
|
||||
release_region(address, PC87360_EXTENT);
|
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kfree(new_client);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int pc87360_detach_client(struct i2c_client *client)
|
||||
{
|
||||
int err;
|
||||
|
||||
i2c_deregister_entry(((struct pc87360_data *) (client->data))->sysctl_id);
|
||||
|
||||
if ((err = i2c_detach_client(client))) {
|
||||
printk("pc87360-fan.o: Client deregistration failed, "
|
||||
"client not detached.\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
release_region(client->addr, PC87360_EXTENT);
|
||||
kfree(client);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int pc87360_read_value(struct i2c_client *client, u8 reg)
|
||||
{
|
||||
int res;
|
||||
|
||||
res = inb_p(client->addr + reg);
|
||||
return res;
|
||||
}
|
||||
|
||||
#if 0
|
||||
static int pc87360_write_value(struct i2c_client *client, u8 reg, u8 value)
|
||||
{
|
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outb_p(value, client->addr + reg);
|
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return 0;
|
||||
}
|
||||
#endif
|
||||
|
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static void pc87360_init_client(struct i2c_client *client)
|
||||
{
|
||||
/* nothing yet, read only driver */
|
||||
}
|
||||
|
||||
static void pc87360_update_client(struct i2c_client *client)
|
||||
{
|
||||
struct pc87360_data *data = client->data;
|
||||
int i;
|
||||
|
||||
down(&data->update_lock);
|
||||
|
||||
if ((jiffies - data->last_updated > HZ + HZ / 2) ||
|
||||
(jiffies < data->last_updated) || !data->valid) {
|
||||
for (i = 0; i < data->fannr; i++) {
|
||||
data->fan[i] = pc87360_read_value(client, PC87360_REG_FAN(i));
|
||||
data->fan_min[i] = pc87360_read_value(client, PC87360_REG_FAN_MIN(i));
|
||||
data->fan_status[i] = pc87360_read_value(client, PC87360_REG_FAN_STATUS(i));
|
||||
data->pwm[i] = pc87360_read_value(client, PC87360_REG_PWM(i));
|
||||
}
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
|
||||
up(&data->update_lock);
|
||||
}
|
||||
|
||||
|
||||
void pc87360_fan(struct i2c_client *client, int operation, int ctl_name,
|
||||
int *nrels_mag, long *results)
|
||||
{
|
||||
struct pc87360_data *data = client->data;
|
||||
int nr = ctl_name - PC87360_SYSCTL_FAN1;
|
||||
|
||||
if (operation == SENSORS_PROC_REAL_INFO)
|
||||
*nrels_mag = 0;
|
||||
else if (operation == SENSORS_PROC_REAL_READ) {
|
||||
pc87360_update_client(client);
|
||||
results[0] = FAN_FROM_REG(data->fan_min[nr],
|
||||
FAN_DIV_FROM_REG(data->fan_status[nr]));
|
||||
results[1] = FAN_FROM_REG(data->fan[nr],
|
||||
FAN_DIV_FROM_REG(data->fan_status[nr]));
|
||||
*nrels_mag = 2;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void pc87360_fan_div(struct i2c_client *client, int operation,
|
||||
int ctl_name, int *nrels_mag, long *results)
|
||||
{
|
||||
struct pc87360_data *data = client->data;
|
||||
int i;
|
||||
|
||||
if (operation == SENSORS_PROC_REAL_INFO)
|
||||
*nrels_mag = 0;
|
||||
else if (operation == SENSORS_PROC_REAL_READ) {
|
||||
pc87360_update_client(client);
|
||||
for (i = 0; i < data->fannr; i++) {
|
||||
results[i] = FAN_DIV_FROM_REG(data->fan_status[i]);
|
||||
}
|
||||
*nrels_mag = data->fannr;
|
||||
}
|
||||
}
|
||||
|
||||
void pc87360_pwm(struct i2c_client *client, int operation, int ctl_name,
|
||||
int *nrels_mag, long *results)
|
||||
{
|
||||
struct pc87360_data *data = client->data;
|
||||
int nr = ctl_name - PC87360_SYSCTL_PWM1;
|
||||
|
||||
if (operation == SENSORS_PROC_REAL_INFO)
|
||||
*nrels_mag = 0;
|
||||
else if (operation == SENSORS_PROC_REAL_READ) {
|
||||
pc87360_update_client(client);
|
||||
results[0] = PWM_FROM_REG(data->pwm[nr]);
|
||||
*nrels_mag = 1;
|
||||
}
|
||||
}
|
||||
|
||||
void pc87360_fan_status(struct i2c_client *client, int operation, int ctl_name,
|
||||
int *nrels_mag, long *results)
|
||||
{
|
||||
struct pc87360_data *data = client->data;
|
||||
int nr = ctl_name - PC87360_SYSCTL_FAN1_STATUS;
|
||||
|
||||
if (operation == SENSORS_PROC_REAL_INFO)
|
||||
*nrels_mag = 0;
|
||||
else if (operation == SENSORS_PROC_REAL_READ) {
|
||||
pc87360_update_client(client);
|
||||
results[0] = ALARM_FROM_REG(data->pwm[nr]);
|
||||
*nrels_mag = 1;
|
||||
}
|
||||
}
|
||||
|
||||
static int __init pc87360_init(void)
|
||||
{
|
||||
int addr;
|
||||
|
||||
printk("pc87360-fan.o version %s (%s)\n", LM_VERSION, LM_DATE);
|
||||
|
||||
if (pc87360_find(&addr, &devid)) {
|
||||
printk("pc87360-fan.o: PC8736x not detected, module not inserted.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
normal_isa[0] = addr;
|
||||
|
||||
return i2c_add_driver(&pc87360_driver);
|
||||
}
|
||||
|
||||
static void __exit pc87360_exit(void)
|
||||
{
|
||||
i2c_del_driver(&pc87360_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
|
||||
MODULE_DESCRIPTION("PC8736x fan monitor");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_init(pc87360_init);
|
||||
module_exit(pc87360_exit);
|
||||
@@ -1355,19 +1355,19 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
|
||||
},
|
||||
{
|
||||
name => "Nat. Semi. PC87360 Super IO Fan Sensors",
|
||||
driver => "pc87360-fan",
|
||||
driver => "pc87360",
|
||||
devid => 0xe1,
|
||||
logdev => 0x09,
|
||||
},
|
||||
{
|
||||
name => "Nat. Semi. PC87363 Super IO Fan Sensors",
|
||||
driver => "pc87360-fan",
|
||||
driver => "pc87360",
|
||||
devid => 0xe8,
|
||||
logdev => 0x09,
|
||||
},
|
||||
{
|
||||
name => "Nat. Semi. PC87364 Super IO Fan Sensors",
|
||||
driver => "pc87360-fan",
|
||||
driver => "pc87360",
|
||||
devid => 0xe4,
|
||||
logdev => 0x09,
|
||||
},
|
||||
|
||||
Reference in New Issue
Block a user