![Darren Jenkins](/assets/img/avatar_default.png)
"register" is a reserved keyword so using it as a parameter name can confuse some compilers, most notably ICC. The patch below just renames all occurences to reg which fits the actual function declarations. Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1702 lines
51 KiB
C
1702 lines
51 KiB
C
/*
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w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
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monitoring
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Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
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Philip Edelbrock <phil@netroedge.com>,
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and Mark Studebaker <mdsxyz123@yahoo.com>
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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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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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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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/*
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Supports following chips:
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Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
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as99127f 7 3 0 3 0x31 0x12c3 yes no
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as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
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w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
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w83627hf 9 3 2 3 0x21 0x5ca3 yes yes(LPC)
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w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
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w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/jiffies.h>
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#include <linux/i2c.h>
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#include <linux/i2c-isa.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-vid.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <asm/io.h>
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#include "lm75.h"
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/* Addresses to scan */
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static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25,
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0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
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0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
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static unsigned short isa_address = 0x290;
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/* Insmod parameters */
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I2C_CLIENT_INSMOD_5(w83781d, w83782d, w83783s, w83627hf, as99127f);
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I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
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"{bus, clientaddr, subclientaddr1, subclientaddr2}");
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static int reset;
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module_param(reset, bool, 0);
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MODULE_PARM_DESC(reset, "Set to one to reset chip on load");
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static int init = 1;
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module_param(init, bool, 0);
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MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
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/* Constants specified below */
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/* Length of ISA address segment */
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#define W83781D_EXTENT 8
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/* Where are the ISA address/data registers relative to the base address */
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#define W83781D_ADDR_REG_OFFSET 5
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#define W83781D_DATA_REG_OFFSET 6
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/* The W83781D registers */
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/* The W83782D registers for nr=7,8 are in bank 5 */
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#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
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(0x554 + (((nr) - 7) * 2)))
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#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
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(0x555 + (((nr) - 7) * 2)))
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#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
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(0x550 + (nr) - 7))
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#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
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#define W83781D_REG_FAN(nr) (0x27 + (nr))
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#define W83781D_REG_BANK 0x4E
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#define W83781D_REG_TEMP2_CONFIG 0x152
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#define W83781D_REG_TEMP3_CONFIG 0x252
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#define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \
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((nr == 2) ? (0x0150) : \
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(0x27)))
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#define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \
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((nr == 2) ? (0x153) : \
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(0x3A)))
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#define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \
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((nr == 2) ? (0x155) : \
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(0x39)))
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#define W83781D_REG_CONFIG 0x40
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/* Interrupt status (W83781D, AS99127F) */
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#define W83781D_REG_ALARM1 0x41
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#define W83781D_REG_ALARM2 0x42
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/* Real-time status (W83782D, W83783S, W83627HF) */
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#define W83782D_REG_ALARM1 0x459
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#define W83782D_REG_ALARM2 0x45A
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#define W83782D_REG_ALARM3 0x45B
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#define W83781D_REG_BEEP_CONFIG 0x4D
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#define W83781D_REG_BEEP_INTS1 0x56
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#define W83781D_REG_BEEP_INTS2 0x57
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#define W83781D_REG_BEEP_INTS3 0x453 /* not on W83781D */
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#define W83781D_REG_VID_FANDIV 0x47
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#define W83781D_REG_CHIPID 0x49
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#define W83781D_REG_WCHIPID 0x58
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#define W83781D_REG_CHIPMAN 0x4F
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#define W83781D_REG_PIN 0x4B
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/* 782D/783S only */
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#define W83781D_REG_VBAT 0x5D
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/* PWM 782D (1-4) and 783S (1-2) only */
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#define W83781D_REG_PWM1 0x5B /* 782d and 783s/627hf datasheets disagree */
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/* on which is which; */
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#define W83781D_REG_PWM2 0x5A /* We follow the 782d convention here, */
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/* However 782d is probably wrong. */
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#define W83781D_REG_PWM3 0x5E
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#define W83781D_REG_PWM4 0x5F
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#define W83781D_REG_PWMCLK12 0x5C
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#define W83781D_REG_PWMCLK34 0x45C
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static const u8 regpwm[] = { W83781D_REG_PWM1, W83781D_REG_PWM2,
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W83781D_REG_PWM3, W83781D_REG_PWM4
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};
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#define W83781D_REG_PWM(nr) (regpwm[(nr) - 1])
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#define W83781D_REG_I2C_ADDR 0x48
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#define W83781D_REG_I2C_SUBADDR 0x4A
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/* The following are undocumented in the data sheets however we
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received the information in an email from Winbond tech support */
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/* Sensor selection - not on 781d */
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#define W83781D_REG_SCFG1 0x5D
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static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
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#define W83781D_REG_SCFG2 0x59
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static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
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#define W83781D_DEFAULT_BETA 3435
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/* RT Table registers */
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#define W83781D_REG_RT_IDX 0x50
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#define W83781D_REG_RT_VAL 0x51
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/* Conversions. Rounding and limit checking is only done on the TO_REG
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variants. Note that you should be a bit careful with which arguments
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these macros are called: arguments may be evaluated more than once.
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Fixing this is just not worth it. */
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#define IN_TO_REG(val) (SENSORS_LIMIT((((val) * 10 + 8)/16),0,255))
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#define IN_FROM_REG(val) (((val) * 16) / 10)
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static inline u8
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FAN_TO_REG(long rpm, int div)
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{
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if (rpm == 0)
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return 255;
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rpm = SENSORS_LIMIT(rpm, 1, 1000000);
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return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
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}
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#define FAN_FROM_REG(val,div) ((val) == 0 ? -1 : \
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((val) == 255 ? 0 : \
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1350000 / ((val) * (div))))
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#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
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: (val)) / 1000, 0, 0xff))
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#define TEMP_FROM_REG(val) (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
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#define PWM_FROM_REG(val) (val)
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#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
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#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \
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(val) ^ 0x7fff : (val))
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#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \
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(~(val)) & 0x7fff : (val) & 0xffffff)
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#define BEEP_ENABLE_TO_REG(val) ((val) ? 1 : 0)
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#define BEEP_ENABLE_FROM_REG(val) ((val) ? 1 : 0)
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#define DIV_FROM_REG(val) (1 << (val))
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static inline u8
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DIV_TO_REG(long val, enum chips type)
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{
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int i;
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val = SENSORS_LIMIT(val, 1,
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((type == w83781d
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|| type == as99127f) ? 8 : 128)) >> 1;
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for (i = 0; i < 7; i++) {
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if (val == 0)
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break;
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val >>= 1;
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}
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return ((u8) i);
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}
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/* There are some complications in a module like this. First off, W83781D chips
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may be both present on the SMBus and the ISA bus, and we have to handle
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those cases separately at some places. Second, there might be several
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W83781D chips available (well, actually, that is probably never done; but
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it is a clean illustration of how to handle a case like that). Finally,
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a specific chip may be attached to *both* ISA and SMBus, and we would
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not like to detect it double. Fortunately, in the case of the W83781D at
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least, a register tells us what SMBus address we are on, so that helps
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a bit - except if there could be more than one SMBus. Groan. No solution
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for this yet. */
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/* This module may seem overly long and complicated. In fact, it is not so
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bad. Quite a lot of bookkeeping is done. A real driver can often cut
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some corners. */
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/* For each registered W83781D, we need to keep some data in memory. That
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data is pointed to by w83781d_list[NR]->data. The structure itself is
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dynamically allocated, at the same time when a new w83781d client is
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allocated. */
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struct w83781d_data {
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struct i2c_client client;
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struct class_device *class_dev;
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struct mutex lock;
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enum chips type;
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struct mutex 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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struct i2c_client *lm75[2]; /* for secondary I2C addresses */
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/* array of 2 pointers to subclients */
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u8 in[9]; /* Register value - 8 & 9 for 782D only */
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u8 in_max[9]; /* Register value - 8 & 9 for 782D only */
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u8 in_min[9]; /* Register value - 8 & 9 for 782D only */
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u8 fan[3]; /* Register value */
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u8 fan_min[3]; /* Register value */
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u8 temp;
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u8 temp_max; /* Register value */
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u8 temp_max_hyst; /* Register value */
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u16 temp_add[2]; /* Register value */
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u16 temp_max_add[2]; /* Register value */
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u16 temp_max_hyst_add[2]; /* Register value */
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u8 fan_div[3]; /* Register encoding, shifted right */
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u8 vid; /* Register encoding, combined */
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u32 alarms; /* Register encoding, combined */
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u32 beep_mask; /* Register encoding, combined */
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u8 beep_enable; /* Boolean */
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u8 pwm[4]; /* Register value */
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u8 pwmenable[4]; /* Boolean */
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u16 sens[3]; /* 782D/783S only.
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1 = pentium diode; 2 = 3904 diode;
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3000-5000 = thermistor beta.
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Default = 3435.
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Other Betas unimplemented */
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u8 vrm;
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};
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static int w83781d_attach_adapter(struct i2c_adapter *adapter);
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static int w83781d_isa_attach_adapter(struct i2c_adapter *adapter);
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static int w83781d_detect(struct i2c_adapter *adapter, int address, int kind);
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static int w83781d_detach_client(struct i2c_client *client);
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static int w83781d_read_value(struct i2c_client *client, u16 reg);
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static int w83781d_write_value(struct i2c_client *client, u16 reg, u16 value);
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static struct w83781d_data *w83781d_update_device(struct device *dev);
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static void w83781d_init_client(struct i2c_client *client);
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static struct i2c_driver w83781d_driver = {
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.driver = {
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.name = "w83781d",
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},
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.id = I2C_DRIVERID_W83781D,
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.attach_adapter = w83781d_attach_adapter,
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.detach_client = w83781d_detach_client,
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};
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static struct i2c_driver w83781d_isa_driver = {
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.driver = {
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.name = "w83781d-isa",
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},
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.attach_adapter = w83781d_isa_attach_adapter,
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.detach_client = w83781d_detach_client,
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};
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/* following are the sysfs callback functions */
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#define show_in_reg(reg) \
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static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
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{ \
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struct w83781d_data *data = w83781d_update_device(dev); \
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return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr] * 10)); \
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}
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show_in_reg(in);
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show_in_reg(in_min);
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show_in_reg(in_max);
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#define store_in_reg(REG, reg) \
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static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
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{ \
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struct i2c_client *client = to_i2c_client(dev); \
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struct w83781d_data *data = i2c_get_clientdata(client); \
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u32 val; \
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\
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val = simple_strtoul(buf, NULL, 10) / 10; \
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\
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mutex_lock(&data->update_lock); \
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data->in_##reg[nr] = IN_TO_REG(val); \
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w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
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\
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mutex_unlock(&data->update_lock); \
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return count; \
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}
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store_in_reg(MIN, min);
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store_in_reg(MAX, max);
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#define sysfs_in_offset(offset) \
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static ssize_t \
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show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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return show_in(dev, buf, offset); \
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} \
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static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
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#define sysfs_in_reg_offset(reg, offset) \
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static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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return show_in_##reg (dev, buf, offset); \
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} \
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static ssize_t store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
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{ \
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return store_in_##reg (dev, buf, count, offset); \
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} \
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static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_in_##reg##offset, store_regs_in_##reg##offset);
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#define sysfs_in_offsets(offset) \
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sysfs_in_offset(offset); \
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sysfs_in_reg_offset(min, offset); \
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sysfs_in_reg_offset(max, offset);
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sysfs_in_offsets(0);
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sysfs_in_offsets(1);
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sysfs_in_offsets(2);
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sysfs_in_offsets(3);
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sysfs_in_offsets(4);
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sysfs_in_offsets(5);
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sysfs_in_offsets(6);
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sysfs_in_offsets(7);
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sysfs_in_offsets(8);
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#define device_create_file_in(client, offset) \
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do { \
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device_create_file(&client->dev, &dev_attr_in##offset##_input); \
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device_create_file(&client->dev, &dev_attr_in##offset##_min); \
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device_create_file(&client->dev, &dev_attr_in##offset##_max); \
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} while (0)
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#define show_fan_reg(reg) \
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static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
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{ \
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struct w83781d_data *data = w83781d_update_device(dev); \
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return sprintf(buf,"%ld\n", \
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FAN_FROM_REG(data->reg[nr-1], (long)DIV_FROM_REG(data->fan_div[nr-1]))); \
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}
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show_fan_reg(fan);
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show_fan_reg(fan_min);
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static ssize_t
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store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct w83781d_data *data = i2c_get_clientdata(client);
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u32 val;
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val = simple_strtoul(buf, NULL, 10);
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mutex_lock(&data->update_lock);
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data->fan_min[nr - 1] =
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FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
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w83781d_write_value(client, W83781D_REG_FAN_MIN(nr),
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data->fan_min[nr - 1]);
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mutex_unlock(&data->update_lock);
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return count;
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}
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#define sysfs_fan_offset(offset) \
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static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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return show_fan(dev, buf, offset); \
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} \
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static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
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#define sysfs_fan_min_offset(offset) \
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static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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return show_fan_min(dev, buf, offset); \
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|
} \
|
|
static ssize_t store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
|
{ \
|
|
return store_fan_min(dev, buf, count, offset); \
|
|
} \
|
|
static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, show_regs_fan_min##offset, store_regs_fan_min##offset);
|
|
|
|
sysfs_fan_offset(1);
|
|
sysfs_fan_min_offset(1);
|
|
sysfs_fan_offset(2);
|
|
sysfs_fan_min_offset(2);
|
|
sysfs_fan_offset(3);
|
|
sysfs_fan_min_offset(3);
|
|
|
|
#define device_create_file_fan(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
|
|
device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
|
|
} while (0)
|
|
|
|
#define show_temp_reg(reg) \
|
|
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
|
|
{ \
|
|
struct w83781d_data *data = w83781d_update_device(dev); \
|
|
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
|
|
return sprintf(buf,"%d\n", \
|
|
LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
|
|
} else { /* TEMP1 */ \
|
|
return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
|
|
} \
|
|
}
|
|
show_temp_reg(temp);
|
|
show_temp_reg(temp_max);
|
|
show_temp_reg(temp_max_hyst);
|
|
|
|
#define store_temp_reg(REG, reg) \
|
|
static ssize_t store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
|
|
{ \
|
|
struct i2c_client *client = to_i2c_client(dev); \
|
|
struct w83781d_data *data = i2c_get_clientdata(client); \
|
|
s32 val; \
|
|
\
|
|
val = simple_strtol(buf, NULL, 10); \
|
|
\
|
|
mutex_lock(&data->update_lock); \
|
|
\
|
|
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
|
|
data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
|
|
w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
|
|
data->temp_##reg##_add[nr-2]); \
|
|
} else { /* TEMP1 */ \
|
|
data->temp_##reg = TEMP_TO_REG(val); \
|
|
w83781d_write_value(client, W83781D_REG_TEMP_##REG(nr), \
|
|
data->temp_##reg); \
|
|
} \
|
|
\
|
|
mutex_unlock(&data->update_lock); \
|
|
return count; \
|
|
}
|
|
store_temp_reg(OVER, max);
|
|
store_temp_reg(HYST, max_hyst);
|
|
|
|
#define sysfs_temp_offset(offset) \
|
|
static ssize_t \
|
|
show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_temp(dev, buf, offset); \
|
|
} \
|
|
static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
|
|
|
|
#define sysfs_temp_reg_offset(reg, offset) \
|
|
static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_temp_##reg (dev, buf, offset); \
|
|
} \
|
|
static ssize_t store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
|
{ \
|
|
return store_temp_##reg (dev, buf, count, offset); \
|
|
} \
|
|
static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
|
|
|
|
#define sysfs_temp_offsets(offset) \
|
|
sysfs_temp_offset(offset); \
|
|
sysfs_temp_reg_offset(max, offset); \
|
|
sysfs_temp_reg_offset(max_hyst, offset);
|
|
|
|
sysfs_temp_offsets(1);
|
|
sysfs_temp_offsets(2);
|
|
sysfs_temp_offsets(3);
|
|
|
|
#define device_create_file_temp(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
|
|
device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
|
|
device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
|
|
} while (0)
|
|
|
|
static ssize_t
|
|
show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
|
|
}
|
|
|
|
static
|
|
DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
|
|
#define device_create_file_vid(client) \
|
|
device_create_file(&client->dev, &dev_attr_cpu0_vid);
|
|
static ssize_t
|
|
show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) data->vrm);
|
|
}
|
|
|
|
static ssize_t
|
|
store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
u32 val;
|
|
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
data->vrm = val;
|
|
|
|
return count;
|
|
}
|
|
|
|
static
|
|
DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
|
|
#define device_create_file_vrm(client) \
|
|
device_create_file(&client->dev, &dev_attr_vrm);
|
|
static ssize_t
|
|
show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%u\n", data->alarms);
|
|
}
|
|
|
|
static
|
|
DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
|
|
#define device_create_file_alarms(client) \
|
|
device_create_file(&client->dev, &dev_attr_alarms);
|
|
static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n",
|
|
(long)BEEP_MASK_FROM_REG(data->beep_mask, data->type));
|
|
}
|
|
static ssize_t show_beep_enable (struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n",
|
|
(long)BEEP_ENABLE_FROM_REG(data->beep_enable));
|
|
}
|
|
|
|
#define BEEP_ENABLE 0 /* Store beep_enable */
|
|
#define BEEP_MASK 1 /* Store beep_mask */
|
|
|
|
static ssize_t
|
|
store_beep_reg(struct device *dev, const char *buf, size_t count,
|
|
int update_mask)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
u32 val, val2;
|
|
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
|
|
data->beep_mask = BEEP_MASK_TO_REG(val, data->type);
|
|
w83781d_write_value(client, W83781D_REG_BEEP_INTS1,
|
|
data->beep_mask & 0xff);
|
|
|
|
if ((data->type != w83781d) && (data->type != as99127f)) {
|
|
w83781d_write_value(client, W83781D_REG_BEEP_INTS3,
|
|
((data->beep_mask) >> 16) & 0xff);
|
|
}
|
|
|
|
val2 = (data->beep_mask >> 8) & 0x7f;
|
|
} else { /* We are storing beep_enable */
|
|
val2 = w83781d_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
|
|
data->beep_enable = BEEP_ENABLE_TO_REG(val);
|
|
}
|
|
|
|
w83781d_write_value(client, W83781D_REG_BEEP_INTS2,
|
|
val2 | data->beep_enable << 7);
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define sysfs_beep(REG, reg) \
|
|
static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_beep_##reg(dev, attr, buf); \
|
|
} \
|
|
static ssize_t store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
|
{ \
|
|
return store_beep_reg(dev, buf, count, BEEP_##REG); \
|
|
} \
|
|
static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, show_regs_beep_##reg, store_regs_beep_##reg);
|
|
|
|
sysfs_beep(ENABLE, enable);
|
|
sysfs_beep(MASK, mask);
|
|
|
|
#define device_create_file_beep(client) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_beep_enable); \
|
|
device_create_file(&client->dev, &dev_attr_beep_mask); \
|
|
} while (0)
|
|
|
|
static ssize_t
|
|
show_fan_div_reg(struct device *dev, char *buf, int nr)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n",
|
|
(long) DIV_FROM_REG(data->fan_div[nr - 1]));
|
|
}
|
|
|
|
/* Note: we save and restore the fan minimum here, because its value is
|
|
determined in part by the fan divisor. This follows the principle of
|
|
least suprise; the user doesn't expect the fan minimum to change just
|
|
because the divisor changed. */
|
|
static ssize_t
|
|
store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
unsigned long min;
|
|
u8 reg;
|
|
unsigned long val = simple_strtoul(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
/* Save fan_min */
|
|
min = FAN_FROM_REG(data->fan_min[nr],
|
|
DIV_FROM_REG(data->fan_div[nr]));
|
|
|
|
data->fan_div[nr] = DIV_TO_REG(val, data->type);
|
|
|
|
reg = (w83781d_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
|
|
& (nr==0 ? 0xcf : 0x3f))
|
|
| ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
|
|
w83781d_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
|
|
|
|
/* w83781d and as99127f don't have extended divisor bits */
|
|
if (data->type != w83781d && data->type != as99127f) {
|
|
reg = (w83781d_read_value(client, W83781D_REG_VBAT)
|
|
& ~(1 << (5 + nr)))
|
|
| ((data->fan_div[nr] & 0x04) << (3 + nr));
|
|
w83781d_write_value(client, W83781D_REG_VBAT, reg);
|
|
}
|
|
|
|
/* Restore fan_min */
|
|
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
|
|
w83781d_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define sysfs_fan_div(offset) \
|
|
static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_fan_div_reg(dev, buf, offset); \
|
|
} \
|
|
static ssize_t store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
|
{ \
|
|
return store_fan_div_reg(dev, buf, count, offset - 1); \
|
|
} \
|
|
static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, show_regs_fan_div_##offset, store_regs_fan_div_##offset);
|
|
|
|
sysfs_fan_div(1);
|
|
sysfs_fan_div(2);
|
|
sysfs_fan_div(3);
|
|
|
|
#define device_create_file_fan_div(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
|
|
} while (0)
|
|
|
|
static ssize_t
|
|
show_pwm_reg(struct device *dev, char *buf, int nr)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) PWM_FROM_REG(data->pwm[nr - 1]));
|
|
}
|
|
|
|
static ssize_t
|
|
show_pwmenable_reg(struct device *dev, char *buf, int nr)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) data->pwmenable[nr - 1]);
|
|
}
|
|
|
|
static ssize_t
|
|
store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
u32 val;
|
|
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
data->pwm[nr - 1] = PWM_TO_REG(val);
|
|
w83781d_write_value(client, W83781D_REG_PWM(nr), data->pwm[nr - 1]);
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t
|
|
store_pwmenable_reg(struct device *dev, const char *buf, size_t count, int nr)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
u32 val, reg;
|
|
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
switch (val) {
|
|
case 0:
|
|
case 1:
|
|
reg = w83781d_read_value(client, W83781D_REG_PWMCLK12);
|
|
w83781d_write_value(client, W83781D_REG_PWMCLK12,
|
|
(reg & 0xf7) | (val << 3));
|
|
|
|
reg = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
|
|
w83781d_write_value(client, W83781D_REG_BEEP_CONFIG,
|
|
(reg & 0xef) | (!val << 4));
|
|
|
|
data->pwmenable[nr - 1] = val;
|
|
break;
|
|
|
|
default:
|
|
mutex_unlock(&data->update_lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define sysfs_pwm(offset) \
|
|
static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_pwm_reg(dev, buf, offset); \
|
|
} \
|
|
static ssize_t store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
return store_pwm_reg(dev, buf, count, offset); \
|
|
} \
|
|
static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
|
|
show_regs_pwm_##offset, store_regs_pwm_##offset);
|
|
|
|
#define sysfs_pwmenable(offset) \
|
|
static ssize_t show_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_pwmenable_reg(dev, buf, offset); \
|
|
} \
|
|
static ssize_t store_regs_pwmenable_##offset (struct device *dev, struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
return store_pwmenable_reg(dev, buf, count, offset); \
|
|
} \
|
|
static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
|
|
show_regs_pwmenable_##offset, store_regs_pwmenable_##offset);
|
|
|
|
sysfs_pwm(1);
|
|
sysfs_pwm(2);
|
|
sysfs_pwmenable(2); /* only PWM2 can be enabled/disabled */
|
|
sysfs_pwm(3);
|
|
sysfs_pwm(4);
|
|
|
|
#define device_create_file_pwm(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_pwm##offset); \
|
|
} while (0)
|
|
|
|
#define device_create_file_pwmenable(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_pwm##offset##_enable); \
|
|
} while (0)
|
|
|
|
static ssize_t
|
|
show_sensor_reg(struct device *dev, char *buf, int nr)
|
|
{
|
|
struct w83781d_data *data = w83781d_update_device(dev);
|
|
return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
|
|
}
|
|
|
|
static ssize_t
|
|
store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
u32 val, tmp;
|
|
|
|
val = simple_strtoul(buf, NULL, 10);
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
switch (val) {
|
|
case 1: /* PII/Celeron diode */
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
|
|
w83781d_write_value(client, W83781D_REG_SCFG1,
|
|
tmp | BIT_SCFG1[nr - 1]);
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
|
|
w83781d_write_value(client, W83781D_REG_SCFG2,
|
|
tmp | BIT_SCFG2[nr - 1]);
|
|
data->sens[nr - 1] = val;
|
|
break;
|
|
case 2: /* 3904 */
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
|
|
w83781d_write_value(client, W83781D_REG_SCFG1,
|
|
tmp | BIT_SCFG1[nr - 1]);
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG2);
|
|
w83781d_write_value(client, W83781D_REG_SCFG2,
|
|
tmp & ~BIT_SCFG2[nr - 1]);
|
|
data->sens[nr - 1] = val;
|
|
break;
|
|
case W83781D_DEFAULT_BETA: /* thermistor */
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
|
|
w83781d_write_value(client, W83781D_REG_SCFG1,
|
|
tmp & ~BIT_SCFG1[nr - 1]);
|
|
data->sens[nr - 1] = val;
|
|
break;
|
|
default:
|
|
dev_err(dev, "Invalid sensor type %ld; must be 1, 2, or %d\n",
|
|
(long) val, W83781D_DEFAULT_BETA);
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
return count;
|
|
}
|
|
|
|
#define sysfs_sensor(offset) \
|
|
static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
|
|
{ \
|
|
return show_sensor_reg(dev, buf, offset); \
|
|
} \
|
|
static ssize_t store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
|
{ \
|
|
return store_sensor_reg(dev, buf, count, offset); \
|
|
} \
|
|
static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, show_regs_sensor_##offset, store_regs_sensor_##offset);
|
|
|
|
sysfs_sensor(1);
|
|
sysfs_sensor(2);
|
|
sysfs_sensor(3);
|
|
|
|
#define device_create_file_sensor(client, offset) \
|
|
do { \
|
|
device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
|
|
} while (0)
|
|
|
|
/* This function is called when:
|
|
* w83781d_driver is inserted (when this module is loaded), for each
|
|
available adapter
|
|
* when a new adapter is inserted (and w83781d_driver is still present) */
|
|
static int
|
|
w83781d_attach_adapter(struct i2c_adapter *adapter)
|
|
{
|
|
if (!(adapter->class & I2C_CLASS_HWMON))
|
|
return 0;
|
|
return i2c_probe(adapter, &addr_data, w83781d_detect);
|
|
}
|
|
|
|
static int
|
|
w83781d_isa_attach_adapter(struct i2c_adapter *adapter)
|
|
{
|
|
return w83781d_detect(adapter, isa_address, -1);
|
|
}
|
|
|
|
/* Assumes that adapter is of I2C, not ISA variety.
|
|
* OTHERWISE DON'T CALL THIS
|
|
*/
|
|
static int
|
|
w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
|
|
struct i2c_client *new_client)
|
|
{
|
|
int i, val1 = 0, id;
|
|
int err;
|
|
const char *client_name = "";
|
|
struct w83781d_data *data = i2c_get_clientdata(new_client);
|
|
|
|
data->lm75[0] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
|
if (!(data->lm75[0])) {
|
|
err = -ENOMEM;
|
|
goto ERROR_SC_0;
|
|
}
|
|
|
|
id = i2c_adapter_id(adapter);
|
|
|
|
if (force_subclients[0] == id && force_subclients[1] == address) {
|
|
for (i = 2; i <= 3; i++) {
|
|
if (force_subclients[i] < 0x48 ||
|
|
force_subclients[i] > 0x4f) {
|
|
dev_err(&new_client->dev, "Invalid subclient "
|
|
"address %d; must be 0x48-0x4f\n",
|
|
force_subclients[i]);
|
|
err = -EINVAL;
|
|
goto ERROR_SC_1;
|
|
}
|
|
}
|
|
w83781d_write_value(new_client, W83781D_REG_I2C_SUBADDR,
|
|
(force_subclients[2] & 0x07) |
|
|
((force_subclients[3] & 0x07) << 4));
|
|
data->lm75[0]->addr = force_subclients[2];
|
|
} else {
|
|
val1 = w83781d_read_value(new_client, W83781D_REG_I2C_SUBADDR);
|
|
data->lm75[0]->addr = 0x48 + (val1 & 0x07);
|
|
}
|
|
|
|
if (kind != w83783s) {
|
|
data->lm75[1] = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
|
if (!(data->lm75[1])) {
|
|
err = -ENOMEM;
|
|
goto ERROR_SC_1;
|
|
}
|
|
|
|
if (force_subclients[0] == id &&
|
|
force_subclients[1] == address) {
|
|
data->lm75[1]->addr = force_subclients[3];
|
|
} else {
|
|
data->lm75[1]->addr = 0x48 + ((val1 >> 4) & 0x07);
|
|
}
|
|
if (data->lm75[0]->addr == data->lm75[1]->addr) {
|
|
dev_err(&new_client->dev,
|
|
"Duplicate addresses 0x%x for subclients.\n",
|
|
data->lm75[0]->addr);
|
|
err = -EBUSY;
|
|
goto ERROR_SC_2;
|
|
}
|
|
}
|
|
|
|
if (kind == w83781d)
|
|
client_name = "w83781d subclient";
|
|
else if (kind == w83782d)
|
|
client_name = "w83782d subclient";
|
|
else if (kind == w83783s)
|
|
client_name = "w83783s subclient";
|
|
else if (kind == w83627hf)
|
|
client_name = "w83627hf subclient";
|
|
else if (kind == as99127f)
|
|
client_name = "as99127f subclient";
|
|
|
|
for (i = 0; i <= 1; i++) {
|
|
/* store all data in w83781d */
|
|
i2c_set_clientdata(data->lm75[i], NULL);
|
|
data->lm75[i]->adapter = adapter;
|
|
data->lm75[i]->driver = &w83781d_driver;
|
|
data->lm75[i]->flags = 0;
|
|
strlcpy(data->lm75[i]->name, client_name,
|
|
I2C_NAME_SIZE);
|
|
if ((err = i2c_attach_client(data->lm75[i]))) {
|
|
dev_err(&new_client->dev, "Subclient %d "
|
|
"registration at address 0x%x "
|
|
"failed.\n", i, data->lm75[i]->addr);
|
|
if (i == 1)
|
|
goto ERROR_SC_3;
|
|
goto ERROR_SC_2;
|
|
}
|
|
if (kind == w83783s)
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
|
|
/* Undo inits in case of errors */
|
|
ERROR_SC_3:
|
|
i2c_detach_client(data->lm75[0]);
|
|
ERROR_SC_2:
|
|
kfree(data->lm75[1]);
|
|
ERROR_SC_1:
|
|
kfree(data->lm75[0]);
|
|
ERROR_SC_0:
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
|
|
{
|
|
int i = 0, val1 = 0, val2;
|
|
struct i2c_client *new_client;
|
|
struct w83781d_data *data;
|
|
int err;
|
|
const char *client_name = "";
|
|
int is_isa = i2c_is_isa_adapter(adapter);
|
|
enum vendor { winbond, asus } vendid;
|
|
|
|
if (!is_isa
|
|
&& !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
|
err = -EINVAL;
|
|
goto ERROR0;
|
|
}
|
|
|
|
/* Prevent users from forcing a kind for a bus it isn't supposed
|
|
to possibly be on */
|
|
if (is_isa && (kind == as99127f || kind == w83783s)) {
|
|
dev_err(&adapter->dev,
|
|
"Cannot force I2C-only chip for ISA address 0x%02x.\n",
|
|
address);
|
|
err = -EINVAL;
|
|
goto ERROR0;
|
|
}
|
|
|
|
if (is_isa)
|
|
if (!request_region(address, W83781D_EXTENT,
|
|
w83781d_isa_driver.driver.name)) {
|
|
dev_dbg(&adapter->dev, "Request of region "
|
|
"0x%x-0x%x for w83781d failed\n", address,
|
|
address + W83781D_EXTENT - 1);
|
|
err = -EBUSY;
|
|
goto ERROR0;
|
|
}
|
|
|
|
/* Probe whether there is anything available on this address. Already
|
|
done for SMBus clients */
|
|
if (kind < 0) {
|
|
if (is_isa) {
|
|
|
|
#define REALLY_SLOW_IO
|
|
/* We need the timeouts for at least some LM78-like
|
|
chips. But only if we read 'undefined' registers. */
|
|
i = inb_p(address + 1);
|
|
if (inb_p(address + 2) != i
|
|
|| inb_p(address + 3) != i
|
|
|| inb_p(address + 7) != i) {
|
|
dev_dbg(&adapter->dev, "Detection of w83781d "
|
|
"chip failed at step 1\n");
|
|
err = -ENODEV;
|
|
goto ERROR1;
|
|
}
|
|
#undef REALLY_SLOW_IO
|
|
|
|
/* Let's just hope nothing breaks here */
|
|
i = inb_p(address + 5) & 0x7f;
|
|
outb_p(~i & 0x7f, address + 5);
|
|
val2 = inb_p(address + 5) & 0x7f;
|
|
if (val2 != (~i & 0x7f)) {
|
|
outb_p(i, address + 5);
|
|
dev_dbg(&adapter->dev, "Detection of w83781d "
|
|
"chip failed at step 2 (0x%x != "
|
|
"0x%x at 0x%x)\n", val2, ~i & 0x7f,
|
|
address + 5);
|
|
err = -ENODEV;
|
|
goto ERROR1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* OK. For now, we presume we have a valid client. We now create the
|
|
client structure, even though we cannot fill it completely yet.
|
|
But it allows us to access w83781d_{read,write}_value. */
|
|
|
|
if (!(data = kzalloc(sizeof(struct w83781d_data), GFP_KERNEL))) {
|
|
err = -ENOMEM;
|
|
goto ERROR1;
|
|
}
|
|
|
|
new_client = &data->client;
|
|
i2c_set_clientdata(new_client, data);
|
|
new_client->addr = address;
|
|
mutex_init(&data->lock);
|
|
new_client->adapter = adapter;
|
|
new_client->driver = is_isa ? &w83781d_isa_driver : &w83781d_driver;
|
|
new_client->flags = 0;
|
|
|
|
/* Now, we do the remaining detection. */
|
|
|
|
/* The w8378?d may be stuck in some other bank than bank 0. This may
|
|
make reading other information impossible. Specify a force=... or
|
|
force_*=... parameter, and the Winbond will be reset to the right
|
|
bank. */
|
|
if (kind < 0) {
|
|
if (w83781d_read_value(new_client, W83781D_REG_CONFIG) & 0x80) {
|
|
dev_dbg(&new_client->dev, "Detection failed at step "
|
|
"3\n");
|
|
err = -ENODEV;
|
|
goto ERROR2;
|
|
}
|
|
val1 = w83781d_read_value(new_client, W83781D_REG_BANK);
|
|
val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
|
|
/* Check for Winbond or Asus ID if in bank 0 */
|
|
if ((!(val1 & 0x07)) &&
|
|
(((!(val1 & 0x80)) && (val2 != 0xa3) && (val2 != 0xc3))
|
|
|| ((val1 & 0x80) && (val2 != 0x5c) && (val2 != 0x12)))) {
|
|
dev_dbg(&new_client->dev, "Detection failed at step "
|
|
"4\n");
|
|
err = -ENODEV;
|
|
goto ERROR2;
|
|
}
|
|
/* If Winbond SMBus, check address at 0x48.
|
|
Asus doesn't support, except for as99127f rev.2 */
|
|
if ((!is_isa) && (((!(val1 & 0x80)) && (val2 == 0xa3)) ||
|
|
((val1 & 0x80) && (val2 == 0x5c)))) {
|
|
if (w83781d_read_value
|
|
(new_client, W83781D_REG_I2C_ADDR) != address) {
|
|
dev_dbg(&new_client->dev, "Detection failed "
|
|
"at step 5\n");
|
|
err = -ENODEV;
|
|
goto ERROR2;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* We have either had a force parameter, or we have already detected the
|
|
Winbond. Put it now into bank 0 and Vendor ID High Byte */
|
|
w83781d_write_value(new_client, W83781D_REG_BANK,
|
|
(w83781d_read_value(new_client,
|
|
W83781D_REG_BANK) & 0x78) |
|
|
0x80);
|
|
|
|
/* Determine the chip type. */
|
|
if (kind <= 0) {
|
|
/* get vendor ID */
|
|
val2 = w83781d_read_value(new_client, W83781D_REG_CHIPMAN);
|
|
if (val2 == 0x5c)
|
|
vendid = winbond;
|
|
else if (val2 == 0x12)
|
|
vendid = asus;
|
|
else {
|
|
dev_dbg(&new_client->dev, "Chip was made by neither "
|
|
"Winbond nor Asus?\n");
|
|
err = -ENODEV;
|
|
goto ERROR2;
|
|
}
|
|
|
|
val1 = w83781d_read_value(new_client, W83781D_REG_WCHIPID);
|
|
if ((val1 == 0x10 || val1 == 0x11) && vendid == winbond)
|
|
kind = w83781d;
|
|
else if (val1 == 0x30 && vendid == winbond)
|
|
kind = w83782d;
|
|
else if (val1 == 0x40 && vendid == winbond && !is_isa
|
|
&& address == 0x2d)
|
|
kind = w83783s;
|
|
else if (val1 == 0x21 && vendid == winbond)
|
|
kind = w83627hf;
|
|
else if (val1 == 0x31 && !is_isa && address >= 0x28)
|
|
kind = as99127f;
|
|
else {
|
|
if (kind == 0)
|
|
dev_warn(&new_client->dev, "Ignoring 'force' "
|
|
"parameter for unknown chip at "
|
|
"adapter %d, address 0x%02x\n",
|
|
i2c_adapter_id(adapter), address);
|
|
err = -EINVAL;
|
|
goto ERROR2;
|
|
}
|
|
}
|
|
|
|
if (kind == w83781d) {
|
|
client_name = "w83781d";
|
|
} else if (kind == w83782d) {
|
|
client_name = "w83782d";
|
|
} else if (kind == w83783s) {
|
|
client_name = "w83783s";
|
|
} else if (kind == w83627hf) {
|
|
client_name = "w83627hf";
|
|
} else if (kind == as99127f) {
|
|
client_name = "as99127f";
|
|
}
|
|
|
|
/* Fill in the remaining client fields and put into the global list */
|
|
strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
|
|
data->type = kind;
|
|
|
|
data->valid = 0;
|
|
mutex_init(&data->update_lock);
|
|
|
|
/* Tell the I2C layer a new client has arrived */
|
|
if ((err = i2c_attach_client(new_client)))
|
|
goto ERROR2;
|
|
|
|
/* attach secondary i2c lm75-like clients */
|
|
if (!is_isa) {
|
|
if ((err = w83781d_detect_subclients(adapter, address,
|
|
kind, new_client)))
|
|
goto ERROR3;
|
|
} else {
|
|
data->lm75[0] = NULL;
|
|
data->lm75[1] = NULL;
|
|
}
|
|
|
|
/* Initialize the chip */
|
|
w83781d_init_client(new_client);
|
|
|
|
/* A few vars need to be filled upon startup */
|
|
for (i = 1; i <= 3; i++) {
|
|
data->fan_min[i - 1] = w83781d_read_value(new_client,
|
|
W83781D_REG_FAN_MIN(i));
|
|
}
|
|
if (kind != w83781d && kind != as99127f)
|
|
for (i = 0; i < 4; i++)
|
|
data->pwmenable[i] = 1;
|
|
|
|
/* Register sysfs hooks */
|
|
data->class_dev = hwmon_device_register(&new_client->dev);
|
|
if (IS_ERR(data->class_dev)) {
|
|
err = PTR_ERR(data->class_dev);
|
|
goto ERROR4;
|
|
}
|
|
|
|
device_create_file_in(new_client, 0);
|
|
if (kind != w83783s)
|
|
device_create_file_in(new_client, 1);
|
|
device_create_file_in(new_client, 2);
|
|
device_create_file_in(new_client, 3);
|
|
device_create_file_in(new_client, 4);
|
|
device_create_file_in(new_client, 5);
|
|
device_create_file_in(new_client, 6);
|
|
if (kind != as99127f && kind != w83781d && kind != w83783s) {
|
|
device_create_file_in(new_client, 7);
|
|
device_create_file_in(new_client, 8);
|
|
}
|
|
|
|
device_create_file_fan(new_client, 1);
|
|
device_create_file_fan(new_client, 2);
|
|
device_create_file_fan(new_client, 3);
|
|
|
|
device_create_file_temp(new_client, 1);
|
|
device_create_file_temp(new_client, 2);
|
|
if (kind != w83783s)
|
|
device_create_file_temp(new_client, 3);
|
|
|
|
device_create_file_vid(new_client);
|
|
device_create_file_vrm(new_client);
|
|
|
|
device_create_file_fan_div(new_client, 1);
|
|
device_create_file_fan_div(new_client, 2);
|
|
device_create_file_fan_div(new_client, 3);
|
|
|
|
device_create_file_alarms(new_client);
|
|
|
|
device_create_file_beep(new_client);
|
|
|
|
if (kind != w83781d && kind != as99127f) {
|
|
device_create_file_pwm(new_client, 1);
|
|
device_create_file_pwm(new_client, 2);
|
|
device_create_file_pwmenable(new_client, 2);
|
|
}
|
|
if (kind == w83782d && !is_isa) {
|
|
device_create_file_pwm(new_client, 3);
|
|
device_create_file_pwm(new_client, 4);
|
|
}
|
|
|
|
if (kind != as99127f && kind != w83781d) {
|
|
device_create_file_sensor(new_client, 1);
|
|
device_create_file_sensor(new_client, 2);
|
|
if (kind != w83783s)
|
|
device_create_file_sensor(new_client, 3);
|
|
}
|
|
|
|
return 0;
|
|
|
|
ERROR4:
|
|
if (data->lm75[1]) {
|
|
i2c_detach_client(data->lm75[1]);
|
|
kfree(data->lm75[1]);
|
|
}
|
|
if (data->lm75[0]) {
|
|
i2c_detach_client(data->lm75[0]);
|
|
kfree(data->lm75[0]);
|
|
}
|
|
ERROR3:
|
|
i2c_detach_client(new_client);
|
|
ERROR2:
|
|
kfree(data);
|
|
ERROR1:
|
|
if (is_isa)
|
|
release_region(address, W83781D_EXTENT);
|
|
ERROR0:
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
w83781d_detach_client(struct i2c_client *client)
|
|
{
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
int err;
|
|
|
|
/* main client */
|
|
if (data)
|
|
hwmon_device_unregister(data->class_dev);
|
|
|
|
if (i2c_is_isa_client(client))
|
|
release_region(client->addr, W83781D_EXTENT);
|
|
|
|
if ((err = i2c_detach_client(client)))
|
|
return err;
|
|
|
|
/* main client */
|
|
if (data)
|
|
kfree(data);
|
|
|
|
/* subclient */
|
|
else
|
|
kfree(client);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* The SMBus locks itself, usually, but nothing may access the Winbond between
|
|
bank switches. ISA access must always be locked explicitly!
|
|
We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
|
|
would slow down the W83781D access and should not be necessary.
|
|
There are some ugly typecasts here, but the good news is - they should
|
|
nowhere else be necessary! */
|
|
static int
|
|
w83781d_read_value(struct i2c_client *client, u16 reg)
|
|
{
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
int res, word_sized, bank;
|
|
struct i2c_client *cl;
|
|
|
|
mutex_lock(&data->lock);
|
|
if (i2c_is_isa_client(client)) {
|
|
word_sized = (((reg & 0xff00) == 0x100)
|
|
|| ((reg & 0xff00) == 0x200))
|
|
&& (((reg & 0x00ff) == 0x50)
|
|
|| ((reg & 0x00ff) == 0x53)
|
|
|| ((reg & 0x00ff) == 0x55));
|
|
if (reg & 0xff00) {
|
|
outb_p(W83781D_REG_BANK,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
outb_p(reg >> 8,
|
|
client->addr + W83781D_DATA_REG_OFFSET);
|
|
}
|
|
outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
|
|
res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
|
|
if (word_sized) {
|
|
outb_p((reg & 0xff) + 1,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
res =
|
|
(res << 8) + inb_p(client->addr +
|
|
W83781D_DATA_REG_OFFSET);
|
|
}
|
|
if (reg & 0xff00) {
|
|
outb_p(W83781D_REG_BANK,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
|
|
}
|
|
} else {
|
|
bank = (reg >> 8) & 0x0f;
|
|
if (bank > 2)
|
|
/* switch banks */
|
|
i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
|
|
bank);
|
|
if (bank == 0 || bank > 2) {
|
|
res = i2c_smbus_read_byte_data(client, reg & 0xff);
|
|
} else {
|
|
/* switch to subclient */
|
|
cl = data->lm75[bank - 1];
|
|
/* convert from ISA to LM75 I2C addresses */
|
|
switch (reg & 0xff) {
|
|
case 0x50: /* TEMP */
|
|
res = swab16(i2c_smbus_read_word_data(cl, 0));
|
|
break;
|
|
case 0x52: /* CONFIG */
|
|
res = i2c_smbus_read_byte_data(cl, 1);
|
|
break;
|
|
case 0x53: /* HYST */
|
|
res = swab16(i2c_smbus_read_word_data(cl, 2));
|
|
break;
|
|
case 0x55: /* OVER */
|
|
default:
|
|
res = swab16(i2c_smbus_read_word_data(cl, 3));
|
|
break;
|
|
}
|
|
}
|
|
if (bank > 2)
|
|
i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
|
|
}
|
|
mutex_unlock(&data->lock);
|
|
return res;
|
|
}
|
|
|
|
static int
|
|
w83781d_write_value(struct i2c_client *client, u16 reg, u16 value)
|
|
{
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
int word_sized, bank;
|
|
struct i2c_client *cl;
|
|
|
|
mutex_lock(&data->lock);
|
|
if (i2c_is_isa_client(client)) {
|
|
word_sized = (((reg & 0xff00) == 0x100)
|
|
|| ((reg & 0xff00) == 0x200))
|
|
&& (((reg & 0x00ff) == 0x53)
|
|
|| ((reg & 0x00ff) == 0x55));
|
|
if (reg & 0xff00) {
|
|
outb_p(W83781D_REG_BANK,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
outb_p(reg >> 8,
|
|
client->addr + W83781D_DATA_REG_OFFSET);
|
|
}
|
|
outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
|
|
if (word_sized) {
|
|
outb_p(value >> 8,
|
|
client->addr + W83781D_DATA_REG_OFFSET);
|
|
outb_p((reg & 0xff) + 1,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
}
|
|
outb_p(value & 0xff, client->addr + W83781D_DATA_REG_OFFSET);
|
|
if (reg & 0xff00) {
|
|
outb_p(W83781D_REG_BANK,
|
|
client->addr + W83781D_ADDR_REG_OFFSET);
|
|
outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
|
|
}
|
|
} else {
|
|
bank = (reg >> 8) & 0x0f;
|
|
if (bank > 2)
|
|
/* switch banks */
|
|
i2c_smbus_write_byte_data(client, W83781D_REG_BANK,
|
|
bank);
|
|
if (bank == 0 || bank > 2) {
|
|
i2c_smbus_write_byte_data(client, reg & 0xff,
|
|
value & 0xff);
|
|
} else {
|
|
/* switch to subclient */
|
|
cl = data->lm75[bank - 1];
|
|
/* convert from ISA to LM75 I2C addresses */
|
|
switch (reg & 0xff) {
|
|
case 0x52: /* CONFIG */
|
|
i2c_smbus_write_byte_data(cl, 1, value & 0xff);
|
|
break;
|
|
case 0x53: /* HYST */
|
|
i2c_smbus_write_word_data(cl, 2, swab16(value));
|
|
break;
|
|
case 0x55: /* OVER */
|
|
i2c_smbus_write_word_data(cl, 3, swab16(value));
|
|
break;
|
|
}
|
|
}
|
|
if (bank > 2)
|
|
i2c_smbus_write_byte_data(client, W83781D_REG_BANK, 0);
|
|
}
|
|
mutex_unlock(&data->lock);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
w83781d_init_client(struct i2c_client *client)
|
|
{
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
int i, p;
|
|
int type = data->type;
|
|
u8 tmp;
|
|
|
|
if (reset && type != as99127f) { /* this resets registers we don't have
|
|
documentation for on the as99127f */
|
|
/* Resetting the chip has been the default for a long time,
|
|
but it causes the BIOS initializations (fan clock dividers,
|
|
thermal sensor types...) to be lost, so it is now optional.
|
|
It might even go away if nobody reports it as being useful,
|
|
as I see very little reason why this would be needed at
|
|
all. */
|
|
dev_info(&client->dev, "If reset=1 solved a problem you were "
|
|
"having, please report!\n");
|
|
|
|
/* save these registers */
|
|
i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
|
|
p = w83781d_read_value(client, W83781D_REG_PWMCLK12);
|
|
/* Reset all except Watchdog values and last conversion values
|
|
This sets fan-divs to 2, among others */
|
|
w83781d_write_value(client, W83781D_REG_CONFIG, 0x80);
|
|
/* Restore the registers and disable power-on abnormal beep.
|
|
This saves FAN 1/2/3 input/output values set by BIOS. */
|
|
w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
|
|
w83781d_write_value(client, W83781D_REG_PWMCLK12, p);
|
|
/* Disable master beep-enable (reset turns it on).
|
|
Individual beep_mask should be reset to off but for some reason
|
|
disabling this bit helps some people not get beeped */
|
|
w83781d_write_value(client, W83781D_REG_BEEP_INTS2, 0);
|
|
}
|
|
|
|
/* Disable power-on abnormal beep, as advised by the datasheet.
|
|
Already done if reset=1. */
|
|
if (init && !reset && type != as99127f) {
|
|
i = w83781d_read_value(client, W83781D_REG_BEEP_CONFIG);
|
|
w83781d_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
|
|
}
|
|
|
|
data->vrm = vid_which_vrm();
|
|
|
|
if ((type != w83781d) && (type != as99127f)) {
|
|
tmp = w83781d_read_value(client, W83781D_REG_SCFG1);
|
|
for (i = 1; i <= 3; i++) {
|
|
if (!(tmp & BIT_SCFG1[i - 1])) {
|
|
data->sens[i - 1] = W83781D_DEFAULT_BETA;
|
|
} else {
|
|
if (w83781d_read_value
|
|
(client,
|
|
W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
|
|
data->sens[i - 1] = 1;
|
|
else
|
|
data->sens[i - 1] = 2;
|
|
}
|
|
if (type == w83783s && i == 2)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (init && type != as99127f) {
|
|
/* Enable temp2 */
|
|
tmp = w83781d_read_value(client, W83781D_REG_TEMP2_CONFIG);
|
|
if (tmp & 0x01) {
|
|
dev_warn(&client->dev, "Enabling temp2, readings "
|
|
"might not make sense\n");
|
|
w83781d_write_value(client, W83781D_REG_TEMP2_CONFIG,
|
|
tmp & 0xfe);
|
|
}
|
|
|
|
/* Enable temp3 */
|
|
if (type != w83783s) {
|
|
tmp = w83781d_read_value(client,
|
|
W83781D_REG_TEMP3_CONFIG);
|
|
if (tmp & 0x01) {
|
|
dev_warn(&client->dev, "Enabling temp3, "
|
|
"readings might not make sense\n");
|
|
w83781d_write_value(client,
|
|
W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Start monitoring */
|
|
w83781d_write_value(client, W83781D_REG_CONFIG,
|
|
(w83781d_read_value(client,
|
|
W83781D_REG_CONFIG) & 0xf7)
|
|
| 0x01);
|
|
}
|
|
|
|
static struct w83781d_data *w83781d_update_device(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct w83781d_data *data = i2c_get_clientdata(client);
|
|
int i;
|
|
|
|
mutex_lock(&data->update_lock);
|
|
|
|
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|
|
|| !data->valid) {
|
|
dev_dbg(dev, "Starting device update\n");
|
|
|
|
for (i = 0; i <= 8; i++) {
|
|
if (data->type == w83783s && i == 1)
|
|
continue; /* 783S has no in1 */
|
|
data->in[i] =
|
|
w83781d_read_value(client, W83781D_REG_IN(i));
|
|
data->in_min[i] =
|
|
w83781d_read_value(client, W83781D_REG_IN_MIN(i));
|
|
data->in_max[i] =
|
|
w83781d_read_value(client, W83781D_REG_IN_MAX(i));
|
|
if ((data->type != w83782d)
|
|
&& (data->type != w83627hf) && (i == 6))
|
|
break;
|
|
}
|
|
for (i = 1; i <= 3; i++) {
|
|
data->fan[i - 1] =
|
|
w83781d_read_value(client, W83781D_REG_FAN(i));
|
|
data->fan_min[i - 1] =
|
|
w83781d_read_value(client, W83781D_REG_FAN_MIN(i));
|
|
}
|
|
if (data->type != w83781d && data->type != as99127f) {
|
|
for (i = 1; i <= 4; i++) {
|
|
data->pwm[i - 1] =
|
|
w83781d_read_value(client,
|
|
W83781D_REG_PWM(i));
|
|
if ((data->type != w83782d
|
|
|| i2c_is_isa_client(client))
|
|
&& i == 2)
|
|
break;
|
|
}
|
|
/* Only PWM2 can be disabled */
|
|
data->pwmenable[1] = (w83781d_read_value(client,
|
|
W83781D_REG_PWMCLK12) & 0x08) >> 3;
|
|
}
|
|
|
|
data->temp = w83781d_read_value(client, W83781D_REG_TEMP(1));
|
|
data->temp_max =
|
|
w83781d_read_value(client, W83781D_REG_TEMP_OVER(1));
|
|
data->temp_max_hyst =
|
|
w83781d_read_value(client, W83781D_REG_TEMP_HYST(1));
|
|
data->temp_add[0] =
|
|
w83781d_read_value(client, W83781D_REG_TEMP(2));
|
|
data->temp_max_add[0] =
|
|
w83781d_read_value(client, W83781D_REG_TEMP_OVER(2));
|
|
data->temp_max_hyst_add[0] =
|
|
w83781d_read_value(client, W83781D_REG_TEMP_HYST(2));
|
|
if (data->type != w83783s) {
|
|
data->temp_add[1] =
|
|
w83781d_read_value(client, W83781D_REG_TEMP(3));
|
|
data->temp_max_add[1] =
|
|
w83781d_read_value(client,
|
|
W83781D_REG_TEMP_OVER(3));
|
|
data->temp_max_hyst_add[1] =
|
|
w83781d_read_value(client,
|
|
W83781D_REG_TEMP_HYST(3));
|
|
}
|
|
i = w83781d_read_value(client, W83781D_REG_VID_FANDIV);
|
|
data->vid = i & 0x0f;
|
|
data->vid |= (w83781d_read_value(client,
|
|
W83781D_REG_CHIPID) & 0x01) << 4;
|
|
data->fan_div[0] = (i >> 4) & 0x03;
|
|
data->fan_div[1] = (i >> 6) & 0x03;
|
|
data->fan_div[2] = (w83781d_read_value(client,
|
|
W83781D_REG_PIN) >> 6) & 0x03;
|
|
if ((data->type != w83781d) && (data->type != as99127f)) {
|
|
i = w83781d_read_value(client, W83781D_REG_VBAT);
|
|
data->fan_div[0] |= (i >> 3) & 0x04;
|
|
data->fan_div[1] |= (i >> 4) & 0x04;
|
|
data->fan_div[2] |= (i >> 5) & 0x04;
|
|
}
|
|
if ((data->type == w83782d) || (data->type == w83627hf)) {
|
|
data->alarms = w83781d_read_value(client,
|
|
W83782D_REG_ALARM1)
|
|
| (w83781d_read_value(client,
|
|
W83782D_REG_ALARM2) << 8)
|
|
| (w83781d_read_value(client,
|
|
W83782D_REG_ALARM3) << 16);
|
|
} else if (data->type == w83783s) {
|
|
data->alarms = w83781d_read_value(client,
|
|
W83782D_REG_ALARM1)
|
|
| (w83781d_read_value(client,
|
|
W83782D_REG_ALARM2) << 8);
|
|
} else {
|
|
/* No real-time status registers, fall back to
|
|
interrupt status registers */
|
|
data->alarms = w83781d_read_value(client,
|
|
W83781D_REG_ALARM1)
|
|
| (w83781d_read_value(client,
|
|
W83781D_REG_ALARM2) << 8);
|
|
}
|
|
i = w83781d_read_value(client, W83781D_REG_BEEP_INTS2);
|
|
data->beep_enable = i >> 7;
|
|
data->beep_mask = ((i & 0x7f) << 8) +
|
|
w83781d_read_value(client, W83781D_REG_BEEP_INTS1);
|
|
if ((data->type != w83781d) && (data->type != as99127f)) {
|
|
data->beep_mask |=
|
|
w83781d_read_value(client,
|
|
W83781D_REG_BEEP_INTS3) << 16;
|
|
}
|
|
data->last_updated = jiffies;
|
|
data->valid = 1;
|
|
}
|
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
return data;
|
|
}
|
|
|
|
static int __init
|
|
sensors_w83781d_init(void)
|
|
{
|
|
int res;
|
|
|
|
res = i2c_add_driver(&w83781d_driver);
|
|
if (res)
|
|
return res;
|
|
|
|
res = i2c_isa_add_driver(&w83781d_isa_driver);
|
|
if (res) {
|
|
i2c_del_driver(&w83781d_driver);
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit
|
|
sensors_w83781d_exit(void)
|
|
{
|
|
i2c_isa_del_driver(&w83781d_isa_driver);
|
|
i2c_del_driver(&w83781d_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
|
|
"Philip Edelbrock <phil@netroedge.com>, "
|
|
"and Mark Studebaker <mdsxyz123@yahoo.com>");
|
|
MODULE_DESCRIPTION("W83781D driver");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(sensors_w83781d_init);
|
|
module_exit(sensors_w83781d_exit);
|