Hi Hans:
First: would you like to add an entry to MAINTAINERS for this driver, pointing
to yourself? Although I wrote the original, I no longer have access to the
hardware.
(some hours later) Wow, I forgot how *enormous* this driver is relative to
other hwmon drivers. I was not able to review it completely today; anyway,
here is what I have for you, for now. Thanks for your patience. Review
comments inline...
* Hans-J?rgen Koch <hjk at linutronix.de> [2007-04-13 17:23:42 +0200]:
> This patch adds support for the LM93 Hardware Monitor/Fan Controller.
> Be warned, this is a monster that adds about 160 sysfs attributes.
> However, it compiles without warnings (patch is against 2.6.21-rc5)
> and I tested it on an Intel dual Xeon board. Looks alright to me.
Were you also able to test the userspace support in sensors/libsensors? Also
BTW: did you test using an I2C/SMBus driver which is capable of block read and
write? If so, did you test also with the disable_block modparam set? Just
curious.
> Please review.
>
> Thanks,
> Hans
> Index: linux-2.6.21-rc/drivers/hwmon/Kconfig
> ===================================================================
> --- linux-2.6.21-rc.orig/drivers/hwmon/Kconfig 2007-04-04 23:09:17.000000000 +0200
> +++ linux-2.6.21-rc/drivers/hwmon/Kconfig 2007-04-04 23:10:33.000000000 +0200
> @@ -366,6 +366,17 @@
> This driver can also be built as a module. If so, the module
> will be called lm92.
>
> +config SENSORS_LM93
> + tristate "National Semiconductor LM93 and compatibles"
> + depends on HWMON && I2C
> + select HWMON_VID
> + help
> + If you say yes here you get support for National Semiconductor LM93
> + sensor chips.
> +
> + This driver can also be built as a module. If so, the module
> + will be called lm93.
> +
> config SENSORS_MAX1619
> tristate "Maxim MAX1619 sensor chip"
> depends on HWMON && I2C
> Index: linux-2.6.21-rc/drivers/hwmon/Makefile
> ===================================================================
> --- linux-2.6.21-rc.orig/drivers/hwmon/Makefile 2007-04-04 23:09:17.000000000 +0200
> +++ linux-2.6.21-rc/drivers/hwmon/Makefile 2007-04-04 23:10:33.000000000 +0200
> @@ -42,6 +42,7 @@
> obj-$(CONFIG_SENSORS_LM87) += lm87.o
> obj-$(CONFIG_SENSORS_LM90) += lm90.o
> obj-$(CONFIG_SENSORS_LM92) += lm92.o
> +obj-$(CONFIG_SENSORS_LM93) += lm93.o
> obj-$(CONFIG_SENSORS_MAX1619) += max1619.o
> obj-$(CONFIG_SENSORS_PC87360) += pc87360.o
> obj-$(CONFIG_SENSORS_PC87427) += pc87427.o
> Index: linux-2.6.21-rc/drivers/hwmon/lm93.c
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6.21-rc/drivers/hwmon/lm93.c 2007-04-13 17:07:44.000000000 +0200
> @@ -0,0 +1,2747 @@
> +/*
> + lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
> +
> + Author/Maintainer: Mark M. Hoffman <mhoffman at lightlink.com>
> + Copyright (c) 2004 Utilitek Systems, Inc.
> +
> + derived in part from lm78.c:
> + Copyright (c) 1998, 1999 Frodo Looijaard <frodol at dds.nl>
> +
> + derived in part from lm85.c:
> + Copyright (c) 2002, 2003 Philip Pokorny <ppokorny at penguincomputing.com>
> + Copyright (c) 2003 Margit Schubert-While <margitsw at t-online.de>
> +
> + derived in part from w83l785ts.c:
> + Copyright (c) 2003-2004 Jean Delvare <khali at linux-fr.org>
> +
> + Ported to Linux 2.6 by Eric J. Bowersox <ericb at aspsys.com>
> + Copyright (c) 2005 Aspen Systems, Inc.
> +
> + Adapted to 2.6.20 by Carsten Emde <ce at osadl.org>
> + Copyright (c) 2006 Carsten Emde, Open Source Automation Development Labs
> +
> + Modified for mainline integration by Hans J. Koch <hjk at linutronix.de>
> + Copyright (c) 2007 Hans J. Koch, Linutronix GmbH
> +
> + This program is free software; you can redistribute it and/or modify
> + it under the terms of the GNU General Public License as published by
> + the Free Software Foundation; either version 2 of the License, or
> + (at your option) any later version.
> +
> + This program is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + GNU General Public License for more details.
> +
> + You should have received a copy of the GNU General Public License
> + along with this program; if not, write to the Free Software
> + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> +*/
> +
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/slab.h>
> +#include <linux/i2c.h>
> +#include <linux/i2c-isa.h>
This header is not needed, see below.
> +#include <linux/hwmon.h>
> +#include <linux/hwmon-sysfs.h>
> +#include <linux/hwmon-vid.h>
> +#include <linux/err.h>
> +#include <linux/delay.h>
> +
> +/* LM93 REGISTER ADDRESSES */
> +
> +/* miscellaneous */
> +#define LM93_REG_MFR_ID 0x3e
> +#define LM93_REG_VER 0x3f
> +#define LM93_REG_STATUS_CONTROL 0xe2
> +#define LM93_REG_CONFIG 0xe3
> +#define LM93_REG_SLEEP_CONTROL 0xe4
> +
> +/* alarm values start here */
> +#define LM93_REG_HOST_ERROR_1 0x48
> +
> +/* voltage inputs: in1-in16 (nr => 0-15) */
> +#define LM93_REG_IN(nr) (0x56 + (nr))
> +#define LM93_REG_IN_MIN(nr) (0x90 + (nr) * 2)
> +#define LM93_REG_IN_MAX(nr) (0x91 + (nr) * 2)
> +
> +/* temperature inputs: temp1-temp4 (nr => 0-3) */
> +#define LM93_REG_TEMP(nr) (0x50 + (nr))
> +#define LM93_REG_TEMP_MIN(nr) (0x78 + (nr) * 2)
> +#define LM93_REG_TEMP_MAX(nr) (0x79 + (nr) * 2)
> +
> +/* temp[1-4]_auto_boost (nr => 0-3) */
> +#define LM93_REG_BOOST(nr) (0x80 + (nr))
> +
> +/* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */
> +#define LM93_REG_PROCHOT_CUR(nr) (0x67 + (nr) * 2)
> +#define LM93_REG_PROCHOT_AVG(nr) (0x68 + (nr) * 2)
> +#define LM93_REG_PROCHOT_MAX(nr) (0xb0 + (nr))
> +
> +/* fan tach inputs: fan1-fan4 (nr => 0-3) */
> +#define LM93_REG_FAN(nr) (0x6e + (nr) * 2)
> +#define LM93_REG_FAN_MIN(nr) (0xb4 + (nr) * 2)
> +
> +/* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */
> +#define LM93_REG_PWM_CTL(nr,reg) (0xc8 + (reg) + (nr) * 4)
> +#define LM93_PWM_CTL1 0x0
> +#define LM93_PWM_CTL2 0x1
> +#define LM93_PWM_CTL3 0x2
> +#define LM93_PWM_CTL4 0x3
> +
> +/* GPIO input state */
> +#define LM93_REG_GPI 0x6b
> +
> +/* vid inputs: vid1-vid2 (nr => 0-1) */
> +#define LM93_REG_VID(nr) (0x6c + (nr))
> +
> +/* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
> +#define LM93_REG_VCCP_LIMIT_OFF(nr) (0xb2 + (nr))
> +
> +/* temp[1-4]_auto_boost_hyst */
> +#define LM93_REG_BOOST_HYST_12 0xc0
> +#define LM93_REG_BOOST_HYST_34 0xc1
> +#define LM93_REG_BOOST_HYST(nr) (0xc0 + (nr)/2)
> +
> +/* temp[1-4]_auto_pwm_[min|hyst] */
> +#define LM93_REG_PWM_MIN_HYST_12 0xc3
> +#define LM93_REG_PWM_MIN_HYST_34 0xc4
> +#define LM93_REG_PWM_MIN_HYST(nr) (0xc3 + (nr)/2)
> +
> +/* prochot_override & prochot_interval */
> +#define LM93_REG_PROCHOT_OVERRIDE 0xc6
> +#define LM93_REG_PROCHOT_INTERVAL 0xc7
> +
> +/* temp[1-4]_auto_base (nr => 0-3) */
> +#define LM93_REG_TEMP_BASE(nr) (0xd0 + (nr))
> +
> +/* temp[1-4]_auto_offsets (step => 0-11) */
> +#define LM93_REG_TEMP_OFFSET(step) (0xd4 + (step))
> +
> +/* #PROCHOT & #VRDHOT PWM ramp control */
> +#define LM93_REG_PWM_RAMP_CTL 0xbf
> +
> +/* miscellaneous */
> +#define LM93_REG_SFC1 0xbc
> +#define LM93_REG_SFC2 0xbd
> +#define LM93_REG_GPI_VID_CTL 0xbe
> +#define LM93_REG_SF_TACH_TO_PWM 0xe0
> +
> +/* error masks */
> +#define LM93_REG_GPI_ERR_MASK 0xec
> +#define LM93_REG_MISC_ERR_MASK 0xed
> +
> +/* LM93 REGISTER VALUES */
> +#define LM93_MFR_ID 0x73
> +#define LM93_MFR_ID_PROTOTYPE 0x72
> +
> +/* SMBus capabilities */
> +#define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \
> + I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)
> +#define LM93_SMBUS_FUNC_MIN (I2C_FUNC_SMBUS_BYTE_DATA | \
> + I2C_FUNC_SMBUS_WORD_DATA)
> +
> +/* Addresses to scan */
> +static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
> +
> +/* Insmod parameters */
> +I2C_CLIENT_INSMOD_1(lm93);
> +
> +static int disable_block;
> +module_param(disable_block, bool, 0);
> +MODULE_PARM_DESC(disable_block,
> + "Set to non-zero to disable SMBus block data transactions.");
> +
> +static int init;
> +module_param(init, bool, 0);
> +MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
> +
> +static int vccp_limit_type[2] = {0,0};
> +module_param_array(vccp_limit_type, int, NULL, 0);
> +MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
> +
> +static int vid_agtl;
> +module_param(vid_agtl, int, 0);
> +MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
> +
> +/* Function prototypes */
> +static u8 lm93_read_byte(struct i2c_client *client, u8 reg);
> +static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value);
> +static u16 lm93_read_word(struct i2c_client *client, u8 reg);
> +static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value);
> +static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values);
> +static struct lm93_data *lm93_update_device(struct device *dev);
> +static void lm93_update_client_common(struct lm93_data *data,
> + struct i2c_client *client);
> +static void lm93_update_client_full(struct lm93_data *data,
> + struct i2c_client *client);
> +static void lm93_update_client_min(struct lm93_data *data,
> + struct i2c_client *client);
> +static void lm93_init_client(struct i2c_client *client);
> +static int lm93_detect(struct i2c_adapter *adapter, int address, int kind);
> +static int lm93_attach_adapter(struct i2c_adapter *adapter);
> +static int lm93_detach_client(struct i2c_client *client);
> +
> +/* Driver data */
> +static struct i2c_driver lm93_driver = {
> + .driver = {
> + .name = "lm93",
> + },
> + .attach_adapter = lm93_attach_adapter,
> + .detach_client = lm93_detach_client,
> +};
> +
> +/* LM93 BLOCK READ COMMANDS */
> +static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
> + { 0xf2, 8 },
> + { 0xf3, 8 },
> + { 0xf4, 6 },
> + { 0xf5, 16 },
> + { 0xf6, 4 },
> + { 0xf7, 8 },
> + { 0xf8, 12 },
> + { 0xf9, 32 },
> + { 0xfa, 8 },
> + { 0xfb, 8 },
> + { 0xfc, 16 },
> + { 0xfd, 9 },
> +};
> +
> +/* ALARMS: SYSCTL format described further below
> + REG: 64 bits in 8 registers, as immediately below */
> +struct block1_t {
> + u8 host_status_1;
> + u8 host_status_2;
> + u8 host_status_3;
> + u8 host_status_4;
> + u8 p1_prochot_status;
> + u8 p2_prochot_status;
> + u8 gpi_status;
> + u8 fan_status;
> +};
> +
> +/* For each registered client, we need to keep some data in memory. That
> + data is pointed to by client->data. The structure itself is dynamically
> + allocated, at the same time the client itself is allocated. */
> +struct lm93_data {
Put the 'struct i2c_client client' element right here in this structure (first)
for the sake of consistency with all the other i2c using hwmon drivers.
> + struct class_device *class_dev;
> + struct semaphore lock;
This lock isn't used anywhere; kill it.
> + enum chips type;
Likewise this element.
> +
> + struct mutex update_lock;
> + unsigned long last_updated; /* In jiffies */
> +
> + /* client update function */
> + void (*update)(struct lm93_data *, struct i2c_client *);
> +
> + char valid; /* !=0 if following fields are valid */
> +
> + /* register values, arranged by block read groups */
> + struct block1_t block1;
> +
> + /* temp1 - temp4: unfiltered readings
> + temp1 - temp2: filtered readings */
> + u8 block2[6];
> +
> + /* vin1 - vin16: readings */
> + u8 block3[16];
> +
> + /* prochot1 - prochot2: readings */
> + struct {
> + u8 cur;
> + u8 avg;
> + } block4[2];
> +
> + /* fan counts 1-4 => 14-bits, LE, *left* justified */
> + u16 block5[4];
> +
> + /* block6 has a lot of data we don't need */
> + struct {
> + u8 min;
> + u8 max;
> + } temp_lim[3];
> +
> + /* vin1 - vin16: low and high limits */
> + struct {
> + u8 min;
> + u8 max;
> + } block7[16];
> +
> + /* fan count limits 1-4 => same format as block5 */
> + u16 block8[4];
> +
> + /* pwm control registers (2 pwms, 4 regs) */
> + u8 block9[2][4];
> +
> + /* auto/pwm base temp and offset temp registers */
> + struct {
> + u8 base[4];
> + u8 offset[12];
> + } block10;
> +
> + /* master config register */
> + u8 config;
> +
> + /* VID1 & VID2 => register format, 6-bits, right justified */
> + u8 vid[2];
> +
> + /* prochot1 - prochot2: limits */
> + u8 prochot_max[2];
> +
> + /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
> + u8 vccp_limits[2];
> +
> + /* GPIO input state (register format, i.e. inverted) */
> + u8 gpi;
> +
> + /* #PROCHOT override (register format) */
> + u8 prochot_override;
> +
> + /* #PROCHOT intervals (register format) */
> + u8 prochot_interval;
> +
> + /* Fan Boost Temperatures (register format) */
> + u8 boost[4];
> +
> + /* Fan Boost Hysteresis (register format) */
> + u8 boost_hyst[2];
> +
> + /* Temperature Zone Min. PWM & Hysteresis (register format) */
> + u8 auto_pwm_min_hyst[2];
> +
> + /* #PROCHOT & #VRDHOT PWM Ramp Control */
> + u8 pwm_ramp_ctl;
> +
> + /* miscellaneous setup regs */
> + u8 sfc1;
> + u8 sfc2;
> + u8 sf_tach_to_pwm;
> +
> + /* The two PWM CTL2 registers can read something other than what was
> + last written for the OVR_DC field (duty cycle override). So, we
> + save the user-commanded value here. */
> + u8 pwm_override[2];
> +};
> +
> +/* VID: mV
> + REG: 6-bits, right justified, *always* using Intel VRM/VRD 10 */
> +static int LM93_VID_FROM_REG(u8 reg)
> +{
> + return vid_from_reg((reg & 0x3f), 100);
> +}
> +
> +/* min, max, and nominal register values, per channel (u8) */
> +static const u8 lm93_vin_reg_min[16] = {
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,
> +};
> +static const u8 lm93_vin_reg_max[16] = {
> + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
> + 0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,
> +};
> +/* TODO what's this?
> +static const u8 lm93_vin_reg_nom[16] = {
> + 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
> + 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,
> +};
> +*/
> +
It's documentation, that's all. Those values are from the datasheet but they
are not actually needed in the code. I should have commented it as such in
the original, yes. Please go ahead and do that.
> +/* min, max, and nominal voltage readings, per channel (mV)*/
> +static const unsigned long lm93_vin_val_min[16] = {
> + 0, 0, 0, 0, 0, 0, 0, 0,
> + 0, 0, 0, 0, 0, 0, 0, 3000,
> +};
> +
> +static const unsigned long lm93_vin_val_max[16] = {
> + 1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,
> + 4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,
> +};
> +/* TODO what's this?
> +static const unsigned long lm93_vin_val_nom[16] = {
> + 927, 927, 927, 1200, 1500, 1500, 1200, 1200,
> + 3300, 5000, 2500, 1969, 984, 984, 309, 3300,
> +};
> +*/
> +
Ditto for that TODO.
> +static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
> +{
> + const long uV_max = lm93_vin_val_max[nr] * 1000;
> + const long uV_min = lm93_vin_val_min[nr] * 1000;
> +
> + const long slope = (uV_max - uV_min) /
> + (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
> + const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
> +
> + return (slope * reg + intercept + 500) / 1000;
> +}
> +
> +/* IN: mV, limits determined by channel nr
> + REG: scaling determined by channel nr */
> +static u8 LM93_IN_TO_REG(int nr, unsigned val)
> +{
> + /* range limit */
> + const long mV = SENSORS_LIMIT(val,
> + lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
> +
> + /* try not to lose too much precision here */
> + const long uV = mV * 1000;
> + const long uV_max = lm93_vin_val_max[nr] * 1000;
> + const long uV_min = lm93_vin_val_min[nr] * 1000;
> +
> + /* convert */
> + const long slope = (uV_max - uV_min) /
> + (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
> + const long intercept = uV_min - slope * lm93_vin_reg_min[nr];
> +
> + u8 result = ((uV - intercept + (slope/2)) / slope);
> + result = SENSORS_LIMIT(result,
> + lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
> + return result;
> +}
> +
> +/* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
> +static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)
> +{
> + const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :
> + (((reg >> 0 & 0x0f) + 1) * -25000);
> + const long uV_vid = vid * 1000;
> + return (uV_vid + uV_offset + 5000) / 10000;
> +}
> +
> +#define LM93_IN_MIN_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,0,vid)
> +#define LM93_IN_MAX_FROM_REG(reg,vid) LM93_IN_REL_FROM_REG(reg,1,vid)
> +
> +/* vid in mV , upper == 0 indicates low limit, otherwise upper limit
> + upper also determines which nibble of the register is returned
> + (the other nibble will be 0x0) */
> +static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
> +{
> + long uV_offset = vid * 1000 - val * 10000;
> + if (upper) {
> + uV_offset = SENSORS_LIMIT(uV_offset, 12500, 200000);
> + return (u8)((uV_offset / 12500 - 1) << 4);
> + } else {
> + uV_offset = SENSORS_LIMIT(uV_offset, -400000, -25000);
> + return (u8)((uV_offset / -25000 - 1) << 0);
> + }
> +}
> +
> +/* TEMP: 1/1000 degrees C (-128C to +127C)
> + REG: 1C/bit, two's complement */
> +static int LM93_TEMP_FROM_REG(u8 reg)
> +{
> + return (s8)reg * 1000;
> +}
> +
> +#define LM93_TEMP_MIN (-128000)
> +#define LM93_TEMP_MAX ( 127000)
> +
> +/* TEMP: 1/1000 degrees C (-128C to +127C)
> + REG: 1C/bit, two's complement */
> +static u8 LM93_TEMP_TO_REG(int temp)
> +{
> + int ntemp = SENSORS_LIMIT(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
> + ntemp += (ntemp<0 ? -500 : 500);
> + return (u8)(ntemp / 1000);
> +}
> +
> +/* Determine 4-bit temperature offset resolution */
> +static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
> +{
> + /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
> + return sfc2 & (nr < 2 ? 0x10 : 0x20);
> +}
> +
> +/* This function is common to all 4-bit temperature offsets
> + reg is 4 bits right justified
> + mode 0 => 1C/bit, mode !0 => 0.5C/bit */
> +static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
> +{
> + return (reg & 0x0f) * (mode ? 5 : 10);
> +}
> +
> +#define LM93_TEMP_OFFSET_MIN ( 0)
> +#define LM93_TEMP_OFFSET_MAX0 (150)
> +#define LM93_TEMP_OFFSET_MAX1 ( 75)
> +
> +/* This function is common to all 4-bit temperature offsets
> + returns 4 bits right justified
> + mode 0 => 1C/bit, mode !0 => 0.5C/bit */
> +static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
> +{
> + int factor = mode ? 5 : 10;
> +
> + off = SENSORS_LIMIT(off, LM93_TEMP_OFFSET_MIN,
> + mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
> + return (u8)((off + factor/2) / factor);
> +}
> +
> +/* 0 <= nr <= 3 */
> +static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
> +{
> + /* temp1-temp2 (nr=0,1) use lower nibble */
> + if (nr < 2)
> + return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
> +
> + /* temp3-temp4 (nr=2,3) use upper nibble */
> + else
> + return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
> +}
> +
> +/* TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))
> + REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)
> + 0 <= nr <= 3 */
> +static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
> +{
> + u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
> +
> + /* temp1-temp2 (nr=0,1) use lower nibble */
> + if (nr < 2)
> + return (old & 0xf0) | (new & 0x0f);
> +
> + /* temp3-temp4 (nr=2,3) use upper nibble */
> + else
> + return (new << 4 & 0xf0) | (old & 0x0f);
> +}
> +
> +static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
> + int mode)
> +{
> + u8 reg;
> +
> + switch (nr) {
> + case 0:
> + reg = data->boost_hyst[0] & 0x0f;
> + break;
> + case 1:
> + reg = data->boost_hyst[0] >> 4 & 0x0f;
> + break;
> + case 2:
> + reg = data->boost_hyst[1] & 0x0f;
> + break;
> + case 3:
> + default:
> + reg = data->boost_hyst[1] >> 4 & 0x0f;
> + break;
> + }
> +
> + return LM93_TEMP_FROM_REG(data->boost[nr]) -
> + LM93_TEMP_OFFSET_FROM_REG(reg, mode);
> +}
> +
> +static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
> + int nr, int mode)
> +{
> + u8 reg = LM93_TEMP_OFFSET_TO_REG(
> + (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
> +
> + switch (nr) {
> + case 0:
> + reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
> + break;
> + case 1:
> + reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
> + break;
> + case 2:
> + reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
> + break;
> + case 3:
> + default:
> + reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
> + break;
> + }
> +
> + return reg;
> +}
> +
> +/* PWM: 0-255 per sensors documentation
> + REG: 0-13 as mapped below... right justified */
> +typedef enum { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ } pwm_freq_t;
> +static int lm93_pwm_map[2][14] = {
> + {
> + 0x00, /* 0.00% */ 0x40, /* 25.00% */
> + 0x50, /* 31.25% */ 0x60, /* 37.50% */
> + 0x70, /* 43.75% */ 0x80, /* 50.00% */
> + 0x90, /* 56.25% */ 0xa0, /* 62.50% */
> + 0xb0, /* 68.75% */ 0xc0, /* 75.00% */
> + 0xd0, /* 81.25% */ 0xe0, /* 87.50% */
> + 0xf0, /* 93.75% */ 0xff, /* 100.00% */
> + },
> + {
> + 0x00, /* 0.00% */ 0x40, /* 25.00% */
> + 0x49, /* 28.57% */ 0x52, /* 32.14% */
> + 0x5b, /* 35.71% */ 0x64, /* 39.29% */
> + 0x6d, /* 42.86% */ 0x76, /* 46.43% */
> + 0x80, /* 50.00% */ 0x89, /* 53.57% */
> + 0x92, /* 57.14% */ 0xb6, /* 71.43% */
> + 0xdb, /* 85.71% */ 0xff, /* 100.00% */
> + },
> +};
> +
> +static int LM93_PWM_FROM_REG(u8 reg, pwm_freq_t freq)
> +{
> + return lm93_pwm_map[freq][reg & 0x0f];
> +}
> +
> +/* round up to nearest match */
> +static u8 LM93_PWM_TO_REG(int pwm, pwm_freq_t freq)
> +{
> + int i;
> + for (i = 0; i < 13; i++)
> + if (pwm <= lm93_pwm_map[freq][i])
> + break;
> +
> + /* can fall through with i==13 */
> + return (u8)i;
> +}
> +
> +static int LM93_FAN_FROM_REG(u16 regs)
> +{
> + const u16 count = le16_to_cpu(regs) >> 2;
> + return count==0 ? -1 : count==0x3fff ? 0: 1350000 / count;
> +}
> +
> +static u16 LM93_FAN_TO_REG(long rpm)
> +{
> + u16 count, regs;
> +
> + if (rpm == 0) {
> + count = 0x3fff;
> + } else {
> + rpm = SENSORS_LIMIT(rpm, 1, 1000000);
> + count = SENSORS_LIMIT((1350000 + rpm) / rpm, 1, 0x3ffe);
> + }
> +
> + regs = count << 2;
> + return cpu_to_le16(regs);
> +}
> +
> +/* PWM FREQ: HZ
> + REG: 0-7 as mapped below */
> +static int lm93_pwm_freq_map[8] = {
> + 22500, 96, 84, 72, 60, 48, 36, 12
> +};
> +
> +static int LM93_PWM_FREQ_FROM_REG(u8 reg)
> +{
> + return lm93_pwm_freq_map[reg & 0x07];
> +}
> +
> +/* round up to nearest match */
> +static u8 LM93_PWM_FREQ_TO_REG(int freq)
> +{
> + int i;
> + for (i = 7; i > 0; i--)
> + if (freq <= lm93_pwm_freq_map[i])
> + break;
> +
> + /* can fall through with i==0 */
> + return (u8)i;
> +}
> +
> +/* TIME: 1/100 seconds
> + * REG: 0-7 as mapped below */
> +static int lm93_spinup_time_map[8] = {
> + 0, 10, 25, 40, 70, 100, 200, 400,
> +};
> +
> +static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
> +{
> + return lm93_spinup_time_map[reg >> 5 & 0x07];
> +}
> +
> +/* round up to nearest match */
> +static u8 LM93_SPINUP_TIME_TO_REG(int time)
> +{
> + int i;
> + for (i = 0; i < 7; i++)
> + if (time <= lm93_spinup_time_map[i])
> + break;
> +
> + /* can fall through with i==8 */
> + return (u8)i;
> +}
> +
> +#define LM93_RAMP_MIN 0
> +#define LM93_RAMP_MAX 75
> +
> +static int LM93_RAMP_FROM_REG(u8 reg)
> +{
> + return (reg & 0x0f) * 5;
> +}
> +
> +/* RAMP: 1/100 seconds
> + REG: 50mS/bit 4-bits right justified */
> +static u8 LM93_RAMP_TO_REG(int ramp)
> +{
> + ramp = SENSORS_LIMIT(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
> + return (u8)((ramp + 2) / 5);
> +}
> +
> +/* PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
> + * REG: (same) */
> +static u8 LM93_PROCHOT_TO_REG(long prochot)
> +{
> + prochot = SENSORS_LIMIT(prochot, 0, 255);
> + return (u8)prochot;
> +}
> +
> +/* PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
> + * REG: 0-9 as mapped below */
> +static int lm93_interval_map[10] = {
> + 73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
> +};
> +
> +static int LM93_INTERVAL_FROM_REG(u8 reg)
> +{
> + return lm93_interval_map[reg & 0x0f];
> +}
> +
> +/* round up to nearest match */
> +static u8 LM93_INTERVAL_TO_REG(long interval)
> +{
> + int i;
> + for (i = 0; i < 9; i++)
> + if (interval <= lm93_interval_map[i])
> + break;
> +
> + /* can fall through with i==9 */
> + return (u8)i;
> +}
> +
> +/* GPIO: 0-255, GPIO0 is LSB
> + * REG: inverted */
> +static unsigned LM93_GPI_FROM_REG(u8 reg)
> +{
> + return ~reg & 0xff;
> +}
> +
> +/* alarm bitmask definitions
> + The LM93 has nearly 64 bits of error status... I've pared that down to
> + what I think is a useful subset in order to fit it into 32 bits.
> +
> + Especially note that the #VRD_HOT alarms are missing because we provide
> + that information as values in another /proc file.
proc -> sysfs
> +
> + If libsensors is extended to support 64 bit values, this could be revisited.
> +*/
> +#define LM93_ALARM_IN1 0x00000001
> +#define LM93_ALARM_IN2 0x00000002
> +#define LM93_ALARM_IN3 0x00000004
> +#define LM93_ALARM_IN4 0x00000008
> +#define LM93_ALARM_IN5 0x00000010
> +#define LM93_ALARM_IN6 0x00000020
> +#define LM93_ALARM_IN7 0x00000040
> +#define LM93_ALARM_IN8 0x00000080
> +#define LM93_ALARM_IN9 0x00000100
> +#define LM93_ALARM_IN10 0x00000200
> +#define LM93_ALARM_IN11 0x00000400
> +#define LM93_ALARM_IN12 0x00000800
> +#define LM93_ALARM_IN13 0x00001000
> +#define LM93_ALARM_IN14 0x00002000
> +#define LM93_ALARM_IN15 0x00004000
> +#define LM93_ALARM_IN16 0x00008000
> +#define LM93_ALARM_FAN1 0x00010000
> +#define LM93_ALARM_FAN2 0x00020000
> +#define LM93_ALARM_FAN3 0x00040000
> +#define LM93_ALARM_FAN4 0x00080000
> +#define LM93_ALARM_PH1_ERR 0x00100000
> +#define LM93_ALARM_PH2_ERR 0x00200000
> +#define LM93_ALARM_SCSI1_ERR 0x00400000
> +#define LM93_ALARM_SCSI2_ERR 0x00800000
> +#define LM93_ALARM_DVDDP1_ERR 0x01000000
> +#define LM93_ALARM_DVDDP2_ERR 0x02000000
> +#define LM93_ALARM_D1_ERR 0x04000000
> +#define LM93_ALARM_D2_ERR 0x08000000
> +#define LM93_ALARM_TEMP1 0x10000000
> +#define LM93_ALARM_TEMP2 0x20000000
> +#define LM93_ALARM_TEMP3 0x40000000
> +
> +static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
> +{
> + unsigned result;
> + result = b1.host_status_2 & 0x3f;
> +
> + if (vccp_limit_type[0])
> + result |= (b1.host_status_4 & 0x10) << 2;
> + else
> + result |= b1.host_status_2 & 0x40;
> +
> + if (vccp_limit_type[1])
> + result |= (b1.host_status_4 & 0x20) << 2;
> + else
> + result |= b1.host_status_2 & 0x80;
> +
> + result |= b1.host_status_3 << 8;
> + result |= (b1.fan_status & 0x0f) << 16;
> + result |= (b1.p1_prochot_status & 0x80) << 13;
> + result |= (b1.p2_prochot_status & 0x80) << 14;
> + result |= (b1.host_status_4 & 0xfc) << 20;
> + result |= (b1.host_status_1 & 0x07) << 28;
> + return result;
> +}
> +
> +/* following are the sysfs callback functions */
> +static ssize_t show_in(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_IN_FROM_REG(nr, data->block3[nr]));
> +}
> +
> +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
> +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
> +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
> +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
> +static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
> +static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
> +static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
> +static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
> +static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
> +static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
> +static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
> +static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
> +static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
> +static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
> +static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
> +static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
> +
> +static ssize_t show_in_min(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + int vccp = nr - 6;
> + long rc, vid;
> +
> + if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
> + vid = LM93_VID_FROM_REG(data->vid[vccp]);
> + rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp],vid);
> + }
> + else {
> + rc = LM93_IN_FROM_REG(nr,data->block7[nr].min); \
> + }
> + return sprintf(buf,"%ld\n",rc); \
> +}
> +
> +static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + int vccp = nr - 6;
> + long vid;
> +
> + mutex_lock(&data->update_lock);
> + if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
> + vid = LM93_VID_FROM_REG(data->vid[vccp]);
> + data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
> + LM93_IN_REL_TO_REG(val, 0, vid);
> + lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
> + data->vccp_limits[vccp]);
> + }
> + else {
> + data->block7[nr].min = LM93_IN_TO_REG(nr,val);
> + lm93_write_byte(client, LM93_REG_IN_MIN(nr),
> + data->block7[nr].min);
> + }
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 0);
> +static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 1);
> +static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 2);
> +static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 3);
> +static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 4);
> +static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 5);
> +static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 6);
> +static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 7);
> +static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 8);
> +static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 9);
> +static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 10);
> +static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 11);
> +static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 12);
> +static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 13);
> +static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 14);
> +static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
> + show_in_min, store_in_min, 15);
> +
> +static ssize_t show_in_max(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + int vccp = nr - 6;
> + long rc, vid;
> +
> + if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
> + vid = LM93_VID_FROM_REG(data->vid[vccp]);
> + rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp],vid);
> + }
> + else {
> + rc = LM93_IN_FROM_REG(nr,data->block7[nr].max); \
> + }
> + return sprintf(buf,"%ld\n",rc); \
> +}
> +
> +static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + int vccp = nr - 6;
> + long vid;
> +
> + mutex_lock(&data->update_lock);
> + if ((nr==6 || nr==7) && (vccp_limit_type[vccp])) {
> + vid = LM93_VID_FROM_REG(data->vid[vccp]);
> + data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
> + LM93_IN_REL_TO_REG(val, 1, vid);
> + lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
> + data->vccp_limits[vccp]);
> + }
> + else {
> + data->block7[nr].max = LM93_IN_TO_REG(nr,val);
> + lm93_write_byte(client, LM93_REG_IN_MAX(nr),
> + data->block7[nr].max);
> + }
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 0);
> +static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 1);
> +static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 2);
> +static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 3);
> +static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 4);
> +static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 5);
> +static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 6);
> +static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 7);
> +static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 8);
> +static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 9);
> +static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 10);
> +static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 11);
> +static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 12);
> +static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 13);
> +static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 14);
> +static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
> + show_in_max, store_in_max, 15);
> +
> +static ssize_t show_temp(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block2[nr]));
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
> +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
> +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
> +
> +static ssize_t show_temp_min(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
> +}
> +
> +static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
> + lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
> + show_temp_min, store_temp_min, 0);
> +static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
> + show_temp_min, store_temp_min, 1);
> +static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
> + show_temp_min, store_temp_min, 2);
> +
> +static ssize_t show_temp_max(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
> +}
> +
> +static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
> + lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
> + show_temp_max, store_temp_max, 0);
> +static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
> + show_temp_max, store_temp_max, 1);
> +static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
> + show_temp_max, store_temp_max, 2);
> +
> +static ssize_t show_temp_auto_base(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->block10.base[nr]));
> +}
> +
> +static ssize_t store_temp_auto_base(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->block10.base[nr] = LM93_TEMP_TO_REG(val);
> + lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
> + show_temp_auto_base, store_temp_auto_base, 0);
> +static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
> + show_temp_auto_base, store_temp_auto_base, 1);
> +static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
> + show_temp_auto_base, store_temp_auto_base, 2);
> +
> +static ssize_t show_temp_auto_boost(struct device *dev,
> + struct device_attribute *attr,char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_TEMP_FROM_REG(data->boost[nr]));
> +}
> +
> +static ssize_t store_temp_auto_boost(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->boost[nr] = LM93_TEMP_TO_REG(val);
> + lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost, store_temp_auto_boost, 0);
> +static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost, store_temp_auto_boost, 1);
> +static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost, store_temp_auto_boost, 2);
> +
> +static ssize_t show_temp_auto_boost_hyst(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
> + return sprintf(buf,"%d\n",
> + LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
> +}
> +
> +static ssize_t store_temp_auto_boost_hyst(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + /* force 0.5C/bit mode */
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
> + lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
> + data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
> + lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
> + data->boost_hyst[nr/2]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost_hyst,
> + store_temp_auto_boost_hyst, 0);
> +static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost_hyst,
> + store_temp_auto_boost_hyst, 1);
> +static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_boost_hyst,
> + store_temp_auto_boost_hyst, 2);
> +
> +static ssize_t show_temp_auto_offset(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index & 0xFF;
> + int ofs = (s_attr->index >> 8) & 0xFF;
> + struct lm93_data *data = lm93_update_device(dev);
> + int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
> + return sprintf(buf,"%d\n",
> + LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
> + nr,mode));
> +}
> +
> +static ssize_t store_temp_auto_offset(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index & 0xFF;
> + int ofs = (s_attr->index >> 8) & 0xFF;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + /* force 0.5C/bit mode */
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
> + lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
> + data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
> + data->block10.offset[ofs], val, nr, 1);
> + lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
> + data->block10.offset[ofs]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset1, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0000);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset2, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0100);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset3, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0200);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset4, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0300);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset5, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0400);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset6, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0500);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset7, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0600);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset8, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0700);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset9, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0800);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset10, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0900);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset11, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0a00);
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset12, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0b00);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset1, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0001);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset2, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0101);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset3, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0201);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset4, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0301);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset5, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0401);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset6, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0501);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset7, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0601);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset8, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0701);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset9, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0801);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset10, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0901);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset11, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0a01);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset12, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0b01);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset1, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0002);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset2, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0102);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset3, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0202);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset4, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0302);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset5, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0402);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset6, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0502);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset7, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0602);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset8, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0702);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset9, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0802);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset10, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0902);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset11, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0a02);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset12, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset,
> + store_temp_auto_offset, 0x0b02);
> +
> +static ssize_t show_temp_auto_pwm_min(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + u8 reg, ctl4;
> + struct lm93_data *data = lm93_update_device(dev);
> + reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
> + ctl4 = data->block9[nr][LM93_PWM_CTL4];
> + return sprintf(buf,"%d\n",LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
> +}
> +
> +static ssize_t store_temp_auto_pwm_min(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 reg, ctl4;
> +
> + mutex_lock(&data->update_lock);
> + reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
> + ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
> + reg = (reg & 0x0f) |
> + LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ :
> + LM93_PWM_MAP_HI_FREQ) << 4;
> + data->auto_pwm_min_hyst[nr/2] = reg;
> + lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
> + show_temp_auto_pwm_min,
> + store_temp_auto_pwm_min, 0);
> +static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
> + show_temp_auto_pwm_min,
> + store_temp_auto_pwm_min, 1);
> +static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
> + show_temp_auto_pwm_min,
> + store_temp_auto_pwm_min, 2);
> +
> +static ssize_t show_temp_auto_offset_hyst(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
> + return sprintf(buf,"%d\n",LM93_TEMP_OFFSET_FROM_REG(
> + data->auto_pwm_min_hyst[nr/2], mode));
> +}
> +
> +static ssize_t store_temp_auto_offset_hyst(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 reg;
> +
> + mutex_lock(&data->update_lock);
> + /* force 0.5C/bit mode */
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
> + lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
> + reg = data->auto_pwm_min_hyst[nr/2];
> + reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
> + data->auto_pwm_min_hyst[nr/2] = reg;
> + lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset_hyst,
> + store_temp_auto_offset_hyst, 0);
> +static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset_hyst,
> + store_temp_auto_offset_hyst, 1);
> +static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
> + show_temp_auto_offset_hyst,
> + store_temp_auto_offset_hyst, 2);
> +
> +static ssize_t show_fan_input(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> +
> + return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block5[nr]));
> +}
> +
> +static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
> +static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
> +static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
> +static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
> +
> +static ssize_t show_fan_min(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> +
> + return sprintf(buf,"%d\n",LM93_FAN_FROM_REG(data->block8[nr]));
> +}
> +
> +static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->block8[nr] = LM93_FAN_TO_REG(val);
> + lm93_write_word(client,LM93_REG_FAN_MIN(nr),data->block8[nr]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
> + show_fan_min, store_fan_min, 0);
> +static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
> + show_fan_min, store_fan_min, 1);
> +static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
> + show_fan_min, store_fan_min, 2);
> +static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
> + show_fan_min, store_fan_min, 3);
> +
> +/* some tedious bit-twiddling here to deal with the register format:
> +
> + data->sf_tach_to_pwm: (tach to pwm mapping bits)
> +
> + bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
> + T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
> +
> + data->sfc2: (enable bits)
> +
> + bit | 3 | 2 | 1 | 0
> + T4 T3 T2 T1
> +*/
> +
> +static ssize_t show_fan_smart_tach(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + long rc = 0;
> + int mapping;
> +
> + /* extract the relevant mapping */
> + mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
> +
> + /* if there's a mapping and it's enabled */
> + if (mapping && ((data->sfc2 >> nr) & 0x01))
> + rc = mapping;
> + return sprintf(buf,"%ld\n",rc);
> +}
> +
> +/* helper function - must grab data->update_lock before calling
> + fan is 0-3, indicating fan1-fan4 */
> +static void lm93_write_fan_smart_tach(struct i2c_client *client,
> + struct lm93_data *data, int fan, long value)
> +{
> + /* insert the new mapping and write it out */
> + data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
> + data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
> + data->sf_tach_to_pwm |= value << fan * 2;
> + lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
> +
> + /* insert the enable bit and write it out */
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + if (value)
> + data->sfc2 |= 1 << fan;
> + else
> + data->sfc2 &= ~(1 << fan);
> + lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
> +}
> +
> +static ssize_t store_fan_smart_tach(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + /* sanity test, ignore the write otherwise */
> + if (0 <= val && val <= 2) {
> + /* can't enable if pwm freq is 22.5KHz */
> + if (val) {
> + u8 ctl4 = lm93_read_byte(client,
> + LM93_REG_PWM_CTL(val-1,LM93_PWM_CTL4));
> + if ((ctl4 & 0x07) == 0)
> + val = 0;
> + }
> + lm93_write_fan_smart_tach(client, data, nr, val);
> + }
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
> + show_fan_smart_tach, store_fan_smart_tach, 0);
> +static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
> + show_fan_smart_tach, store_fan_smart_tach, 1);
> +static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
> + show_fan_smart_tach, store_fan_smart_tach, 2);
> +static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
> + show_fan_smart_tach, store_fan_smart_tach, 3);
> +
> +static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + u8 ctl2, ctl4;
> + long rc;
> +
> + ctl2 = (data->block9[nr][LM93_PWM_CTL2] >> 4) & 0x0f;
> + ctl4 = data->block9[nr][LM93_PWM_CTL4];
> + if (ctl2 & 0x01) /* show user commanded value if enabled */
> + rc = data->pwm_override[nr];
> + else /* show present h/w value if manual pwm disabled */
> + rc = LM93_PWM_FROM_REG(ctl2, (ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
> + return sprintf(buf,"%ld\n",rc);
> +}
> +
> +static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ctl2, ctl4;
> +
> + mutex_lock(&data->update_lock);
> + ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
> + ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
> + ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val,(ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
> + /* save user commanded value */
> + data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4 & 0x0f,
> + (ctl4 & 0x07) ? LM93_PWM_MAP_LO_FREQ :
> + LM93_PWM_MAP_HI_FREQ);
> + lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
> +static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
> +
> +static ssize_t show_pwm_override(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + u8 ctl2;
> +
> + ctl2 = data->block9[nr][LM93_PWM_CTL2];
> + return sprintf(buf,"%d\n",(ctl2 & 0x01) ? 1 : 0);
> +}
> +
> +static ssize_t store_pwm_override(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ctl2;
> +
> + mutex_lock(&data->update_lock);
> + ctl2 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2));
> + if (val)
> + ctl2 |= 0x01;
> + else
> + ctl2 &= ~0x01;
> + lm93_write_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL2),ctl2);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1_override, S_IWUSR | S_IRUGO,
> + show_pwm_override, store_pwm_override, 0);
> +static SENSOR_DEVICE_ATTR(pwm2_override, S_IWUSR | S_IRUGO,
> + show_pwm_override, store_pwm_override, 1);
> +
> +static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + u8 ctl4;
> +
> + ctl4 = data->block9[nr][LM93_PWM_CTL4];
> + return sprintf(buf,"%d\n",LM93_PWM_FREQ_FROM_REG(ctl4));
> +}
> +
> +/* helper function - must grab data->update_lock before calling
> + pwm is 0-1, indicating pwm1-pwm2
> + this disables smart tach for all tach channels bound to the given pwm */
> +static void lm93_disable_fan_smart_tach(struct i2c_client *client,
> + struct lm93_data *data, int pwm)
> +{
> + int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
> + int mask;
> +
> + /* collapse the mapping into a mask of enable bits */
> + mapping = (mapping >> pwm) & 0x55;
> + mask = mapping & 0x01;
> + mask |= (mapping & 0x04) >> 1;
> + mask |= (mapping & 0x10) >> 2;
> + mask |= (mapping & 0x40) >> 3;
> +
> + /* disable smart tach according to the mask */
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + data->sfc2 &= ~mask;
> + lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
> +}
> +
> +static ssize_t store_pwm_freq(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ctl4;
> +
> + mutex_lock(&data->update_lock);
> + ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4));
> + ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
> + data->block9[nr][LM93_PWM_CTL4] = ctl4;
> + /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
> + if (!ctl4)
> + lm93_disable_fan_smart_tach(client, data, nr);
> + lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL4), ctl4);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
> + show_pwm_freq, store_pwm_freq, 0);
> +static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
> + show_pwm_freq, store_pwm_freq, 1);
> +
> +static ssize_t show_pwm_auto_channels(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",data->block9[nr][LM93_PWM_CTL1]);
> +}
> +
> +static ssize_t store_pwm_auto_channels(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->block9[nr][LM93_PWM_CTL1] = SENSORS_LIMIT(val, 0, 255);
> + lm93_write_byte(client, LM93_REG_PWM_CTL(nr,LM93_PWM_CTL1),
> + data->block9[nr][LM93_PWM_CTL1]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
> + show_pwm_auto_channels, store_pwm_auto_channels, 0);
> +static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
> + show_pwm_auto_channels, store_pwm_auto_channels, 1);
> +
> +static ssize_t show_pwm_auto_spinup_min(struct device *dev,
> + struct device_attribute *attr,char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + u8 ctl3, ctl4;
> +
> + ctl3 = data->block9[nr][LM93_PWM_CTL3];
> + ctl4 = data->block9[nr][LM93_PWM_CTL4];
> + return sprintf(buf,"%d\n",
> + LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
> +}
> +
> +static ssize_t store_pwm_auto_spinup_min(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ctl3, ctl4;
> +
> + mutex_lock(&data->update_lock);
> + ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
> + ctl4 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
> + ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
> + LM93_PWM_MAP_LO_FREQ :
> + LM93_PWM_MAP_HI_FREQ);
> + data->block9[nr][LM93_PWM_CTL3] = ctl3;
> + lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
> + show_pwm_auto_spinup_min,
> + store_pwm_auto_spinup_min, 0);
> +static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
> + show_pwm_auto_spinup_min,
> + store_pwm_auto_spinup_min, 1);
> +
> +static ssize_t show_pwm_auto_spinup_time(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_SPINUP_TIME_FROM_REG(
> + data->block9[nr][LM93_PWM_CTL3]));
> +}
> +
> +static ssize_t store_pwm_auto_spinup_time(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ctl3;
> +
> + mutex_lock(&data->update_lock);
> + ctl3 = lm93_read_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
> + ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
> + data->block9[nr][LM93_PWM_CTL3] = ctl3;
> + lm93_write_byte(client,LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
> + show_pwm_auto_spinup_time,
> + store_pwm_auto_spinup_time, 0);
> +static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
> + show_pwm_auto_spinup_time,
> + store_pwm_auto_spinup_time, 1);
> +
> +static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",
> + LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
> +}
> +
> +static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ramp;
> +
> + mutex_lock(&data->update_lock);
> + ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
> + ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
> + lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
> + show_pwm_auto_prochot_ramp,
> + store_pwm_auto_prochot_ramp);
> +
> +static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",
> + LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
> +}
> +
> +static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 ramp;
> +
> + mutex_lock(&data->update_lock);
> + ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
> + ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
> + lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
> + mutex_unlock(&data->update_lock);
> + return 0;
> +}
> +
> +static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
> + show_pwm_auto_vrdhot_ramp,
> + store_pwm_auto_vrdhot_ramp);
> +
> +static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_VID_FROM_REG(data->vid[nr]));
> +}
> +
> +static SENSOR_DEVICE_ATTR(vid1, S_IRUGO, show_vid, NULL, 0);
> +static SENSOR_DEVICE_ATTR(vid2, S_IRUGO, show_vid, NULL, 1);
> +
> +static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",data->block4[nr].cur);
> +}
> +
> +static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
> +static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
> +
> +static ssize_t show_prochot_avg(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",data->block4[nr].avg);
> +}
> +
> +static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
> +static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
> +
> +static ssize_t show_prochot_max(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",data->prochot_max[nr]);
> +}
> +
> +static ssize_t store_prochot_max(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
> + lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
> + data->prochot_max[nr]);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
> + show_prochot_max, store_prochot_max, 0);
> +static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
> + show_prochot_max, store_prochot_max, 1);
> +
> +static const u8 prochot_override_mask[] = { 0x80, 0x40 };
> +
> +static ssize_t show_prochot_override(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",
> + (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
> +}
> +
> +static ssize_t store_prochot_override(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + if (val)
> + data->prochot_override |= prochot_override_mask[nr];
> + else
> + data->prochot_override &= (~prochot_override_mask[nr]);
> + lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
> + data->prochot_override);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
> + show_prochot_override, store_prochot_override, 0);
> +static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
> + show_prochot_override, store_prochot_override, 1);
> +
> +static ssize_t show_prochot_interval(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + u8 tmp;
> + if (nr==1)
> + tmp = (data->prochot_interval & 0xf0) >> 4;
> + else
> + tmp = data->prochot_interval & 0x0f;
> + return sprintf(buf,"%d\n",LM93_INTERVAL_FROM_REG(tmp));
> +}
> +
> +static ssize_t store_prochot_interval(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> + u8 tmp;
> +
> + mutex_lock(&data->update_lock);
> + tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
> + if (nr==1)
> + tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
> + else
> + tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
> + data->prochot_interval = tmp;
> + lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
> + show_prochot_interval, store_prochot_interval, 0);
> +static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
> + show_prochot_interval, store_prochot_interval, 1);
> +
> +static ssize_t show_prochot_override_duty_cycle(struct device *dev,
> + struct device_attribute *attr,
> + char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",data->prochot_override & 0x0f);
> +}
> +
> +static ssize_t store_prochot_override_duty_cycle(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + data->prochot_override = (data->prochot_override & 0xf0) |
> + SENSORS_LIMIT(val, 0, 15);
> + lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
> + data->prochot_override);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
> + show_prochot_override_duty_cycle,
> + store_prochot_override_duty_cycle);
> +
> +static ssize_t show_prochot_short(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",(data->config & 0x10) ? 1 : 0);
> +}
> +
> +static ssize_t store_prochot_short(struct device *dev,
> + struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + u32 val = simple_strtoul(buf, NULL, 10);
> +
> + mutex_lock(&data->update_lock);
> + if (val)
> + data->config |= 0x10;
> + else
> + data->config &= ~0x10;
> + lm93_write_byte(client, LM93_REG_CONFIG, data->config);
> + mutex_unlock(&data->update_lock);
> + return count;
> +}
> +
> +static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
> + show_prochot_short, store_prochot_short);
> +
> +static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
> + int nr = s_attr->index;
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",
> + data->block1.host_status_1 & (1 << (nr+4)) ? 1 : 0);
> +}
> +
> +static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
> +static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
> +
> +static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_GPI_FROM_REG(data->gpi));
> +}
> +
> +static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
> +
> +static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
> + char *buf)
> +{
> + struct lm93_data *data = lm93_update_device(dev);
> + return sprintf(buf,"%d\n",LM93_ALARMS_FROM_REG(data->block1));
> +}
> +
> +static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
> +
> +static struct attribute *lm93_attrs[] = {
> + &sensor_dev_attr_in1_input.dev_attr.attr,
> + &sensor_dev_attr_in2_input.dev_attr.attr,
> + &sensor_dev_attr_in3_input.dev_attr.attr,
> + &sensor_dev_attr_in4_input.dev_attr.attr,
> + &sensor_dev_attr_in5_input.dev_attr.attr,
> + &sensor_dev_attr_in6_input.dev_attr.attr,
> + &sensor_dev_attr_in7_input.dev_attr.attr,
> + &sensor_dev_attr_in8_input.dev_attr.attr,
> + &sensor_dev_attr_in9_input.dev_attr.attr,
> + &sensor_dev_attr_in10_input.dev_attr.attr,
> + &sensor_dev_attr_in11_input.dev_attr.attr,
> + &sensor_dev_attr_in12_input.dev_attr.attr,
> + &sensor_dev_attr_in13_input.dev_attr.attr,
> + &sensor_dev_attr_in14_input.dev_attr.attr,
> + &sensor_dev_attr_in15_input.dev_attr.attr,
> + &sensor_dev_attr_in16_input.dev_attr.attr,
> + &sensor_dev_attr_in1_min.dev_attr.attr,
> + &sensor_dev_attr_in2_min.dev_attr.attr,
> + &sensor_dev_attr_in3_min.dev_attr.attr,
> + &sensor_dev_attr_in4_min.dev_attr.attr,
> + &sensor_dev_attr_in5_min.dev_attr.attr,
> + &sensor_dev_attr_in6_min.dev_attr.attr,
> + &sensor_dev_attr_in7_min.dev_attr.attr,
> + &sensor_dev_attr_in8_min.dev_attr.attr,
> + &sensor_dev_attr_in9_min.dev_attr.attr,
> + &sensor_dev_attr_in10_min.dev_attr.attr,
> + &sensor_dev_attr_in11_min.dev_attr.attr,
> + &sensor_dev_attr_in12_min.dev_attr.attr,
> + &sensor_dev_attr_in13_min.dev_attr.attr,
> + &sensor_dev_attr_in14_min.dev_attr.attr,
> + &sensor_dev_attr_in15_min.dev_attr.attr,
> + &sensor_dev_attr_in16_min.dev_attr.attr,
> + &sensor_dev_attr_in1_max.dev_attr.attr,
> + &sensor_dev_attr_in2_max.dev_attr.attr,
> + &sensor_dev_attr_in3_max.dev_attr.attr,
> + &sensor_dev_attr_in4_max.dev_attr.attr,
> + &sensor_dev_attr_in5_max.dev_attr.attr,
> + &sensor_dev_attr_in6_max.dev_attr.attr,
> + &sensor_dev_attr_in7_max.dev_attr.attr,
> + &sensor_dev_attr_in8_max.dev_attr.attr,
> + &sensor_dev_attr_in9_max.dev_attr.attr,
> + &sensor_dev_attr_in10_max.dev_attr.attr,
> + &sensor_dev_attr_in11_max.dev_attr.attr,
> + &sensor_dev_attr_in12_max.dev_attr.attr,
> + &sensor_dev_attr_in13_max.dev_attr.attr,
> + &sensor_dev_attr_in14_max.dev_attr.attr,
> + &sensor_dev_attr_in15_max.dev_attr.attr,
> + &sensor_dev_attr_in16_max.dev_attr.attr,
> + &sensor_dev_attr_temp1_input.dev_attr.attr,
> + &sensor_dev_attr_temp2_input.dev_attr.attr,
> + &sensor_dev_attr_temp3_input.dev_attr.attr,
> + &sensor_dev_attr_temp1_min.dev_attr.attr,
> + &sensor_dev_attr_temp2_min.dev_attr.attr,
> + &sensor_dev_attr_temp3_min.dev_attr.attr,
> + &sensor_dev_attr_temp1_max.dev_attr.attr,
> + &sensor_dev_attr_temp2_max.dev_attr.attr,
> + &sensor_dev_attr_temp3_max.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
> + &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
> + &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
> + &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
> + &sensor_dev_attr_fan1_input.dev_attr.attr,
> + &sensor_dev_attr_fan2_input.dev_attr.attr,
> + &sensor_dev_attr_fan3_input.dev_attr.attr,
> + &sensor_dev_attr_fan4_input.dev_attr.attr,
> + &sensor_dev_attr_fan1_min.dev_attr.attr,
> + &sensor_dev_attr_fan2_min.dev_attr.attr,
> + &sensor_dev_attr_fan3_min.dev_attr.attr,
> + &sensor_dev_attr_fan4_min.dev_attr.attr,
> + &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
> + &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
> + &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
> + &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
> + &sensor_dev_attr_pwm1.dev_attr.attr,
> + &sensor_dev_attr_pwm2.dev_attr.attr,
> + &sensor_dev_attr_pwm1_override.dev_attr.attr,
> + &sensor_dev_attr_pwm2_override.dev_attr.attr,
> + &sensor_dev_attr_pwm1_freq.dev_attr.attr,
> + &sensor_dev_attr_pwm2_freq.dev_attr.attr,
> + &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
> + &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
> + &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
> + &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
> + &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
> + &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
> + &dev_attr_pwm_auto_prochot_ramp.attr,
> + &dev_attr_pwm_auto_vrdhot_ramp.attr,
> + &sensor_dev_attr_vid1.dev_attr.attr,
> + &sensor_dev_attr_vid2.dev_attr.attr,
> + &sensor_dev_attr_prochot1.dev_attr.attr,
> + &sensor_dev_attr_prochot2.dev_attr.attr,
> + &sensor_dev_attr_prochot1_avg.dev_attr.attr,
> + &sensor_dev_attr_prochot2_avg.dev_attr.attr,
> + &sensor_dev_attr_prochot1_max.dev_attr.attr,
> + &sensor_dev_attr_prochot2_max.dev_attr.attr,
> + &sensor_dev_attr_prochot1_override.dev_attr.attr,
> + &sensor_dev_attr_prochot2_override.dev_attr.attr,
> + &sensor_dev_attr_prochot1_interval.dev_attr.attr,
> + &sensor_dev_attr_prochot2_interval.dev_attr.attr,
> + &dev_attr_prochot_override_duty_cycle.attr,
> + &dev_attr_prochot_short.attr,
> + &sensor_dev_attr_vrdhot1.dev_attr.attr,
> + &sensor_dev_attr_vrdhot2.dev_attr.attr,
> + &dev_attr_gpio.attr,
> + &dev_attr_alarms.attr,
> + NULL
> +};
> +
> +static struct attribute_group lm93_attr_grp = {
> + .attrs = lm93_attrs,
> +};
> +
> +#define MAX_RETRIES 5
> +
> +static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
> +{
> + int value, i;
> +
> + /* retry in case of read errors */
> + for (i=1; i<=MAX_RETRIES; i++) {
> + if ((value = i2c_smbus_read_byte_data(client, reg)) >= 0) {
> + return value;
> + } else {
> + dev_warn(&client->dev,"lm93: read byte data failed, "
> + "address 0x%02x.\n", reg);
> + mdelay(i + 3);
> + }
> +
> + }
> +
> + /* <TODO> what to return in case of error? */
> + dev_err(&client->dev,"lm93: All read byte retries failed!!\n");
> + return 0;
> +}
> +
> +static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
> +{
> + int result;
> +
> + /* <TODO> how to handle write errors? */
> + result = i2c_smbus_write_byte_data(client, reg, value);
> +
> + if (result < 0)
> + dev_warn(&client->dev,"lm93: write byte data failed, "
> + "0x%02x at address 0x%02x.\n", value, reg);
> +
> + return result;
> +}
> +
> +static u16 lm93_read_word(struct i2c_client *client, u8 reg)
> +{
> + int value, i;
> +
> + /* retry in case of read errors */
> + for (i=1; i<=MAX_RETRIES; i++) {
> + if ((value = i2c_smbus_read_word_data(client, reg)) >= 0) {
> + return value;
> + } else {
> + dev_warn(&client->dev,"lm93: read word data failed, "
> + "address 0x%02x.\n", reg);
> + mdelay(i + 3);
> + }
> +
> + }
> +
> + /* <TODO> what to return in case of error? */
> + dev_err(&client->dev,"lm93: All read word retries failed!!\n");
> + return 0;
> +}
> +
> +static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
> +{
> + int result;
> +
> + /* <TODO> how to handle write errors? */
> + result = i2c_smbus_write_word_data(client, reg, value);
> +
> + if (result < 0)
> + dev_warn(&client->dev,"lm93: write word data failed, "
> + "0x%04x at address 0x%02x.\n", value, reg);
> +
> + return result;
> +}
> +
> +static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
> +
> +/*
> + read block data into values, retry if not expected length
> + fbn => index to lm93_block_read_cmds table
> + (Fixed Block Number - section 14.5.2 of LM93 datasheet)
> +*/
> +static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
> +{
> + int i, result=0;
> +
> + for (i = 1; i <= MAX_RETRIES; i++) {
> + result = i2c_smbus_read_block_data(client,
> + lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
> +
> + if (result == lm93_block_read_cmds[fbn].len) {
> + break;
> + } else {
> + dev_warn(&client->dev,"lm93: block read data failed, "
> + "command 0x%02x.\n",
> + lm93_block_read_cmds[fbn].cmd);
> + mdelay(i + 3);
> + }
> + }
> +
> + if (result == lm93_block_read_cmds[fbn].len) {
> + memcpy(values,lm93_block_buffer,lm93_block_read_cmds[fbn].len);
> + } else {
> + /* <TODO> what to do in case of error? */
> + }
> +}
> +
> +static struct lm93_data *lm93_update_device(struct device *dev)
> +{
> + struct i2c_client *client = to_i2c_client(dev);
> + struct lm93_data *data = i2c_get_clientdata(client);
> + const unsigned long interval = HZ + (HZ / 2);
> +
> + mutex_lock(&data->update_lock);
> +
> + if (time_after(jiffies - data->last_updated, interval) ||
> + time_before(jiffies, data->last_updated) || !data->valid) {
> +
> + data->update(data, client);
> + data->last_updated = jiffies;
> + data->valid = 1;
> + }
> +
> + mutex_unlock(&data->update_lock);
> + return data;
> +}
> +
> +/* update routine for data that has no corresponding SMBus block command */
> +static void lm93_update_client_common(struct lm93_data *data,
> + struct i2c_client *client)
> +{
> + int i;
> + u8 *ptr;
> +
> + /* temp1 - temp4: limits */
> + for (i = 0; i < 4; i++) {
> + data->temp_lim[i].min =
> + lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
> + data->temp_lim[i].max =
> + lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
> + }
> +
> + /* config register */
> + data->config = lm93_read_byte(client, LM93_REG_CONFIG);
> +
> + /* vid1 - vid2: values */
> + for (i = 0; i < 2; i++)
> + data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
> +
> + /* prochot1 - prochot2: limits */
> + for (i = 0; i < 2; i++)
> + data->prochot_max[i] = lm93_read_byte(client,
> + LM93_REG_PROCHOT_MAX(i));
> +
> + /* vccp1 - vccp2: VID relative limits */
> + for (i = 0; i < 2; i++)
> + data->vccp_limits[i] = lm93_read_byte(client,
> + LM93_REG_VCCP_LIMIT_OFF(i));
> +
> + /* GPIO input state */
> + data->gpi = lm93_read_byte(client, LM93_REG_GPI);
> +
> + /* #PROCHOT override state */
> + data->prochot_override = lm93_read_byte(client,
> + LM93_REG_PROCHOT_OVERRIDE);
> +
> + /* #PROCHOT intervals */
> + data->prochot_interval = lm93_read_byte(client,
> + LM93_REG_PROCHOT_INTERVAL);
> +
> + /* Fan Boost Termperature registers */
> + for (i = 0; i < 4; i++)
> + data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
> +
> + /* Fan Boost Temperature Hyst. registers */
> + data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
> + data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
> +
> + /* Temperature Zone Min. PWM & Hysteresis registers */
> + data->auto_pwm_min_hyst[0] =
> + lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
> + data->auto_pwm_min_hyst[1] =
> + lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
> +
> + /* #PROCHOT & #VRDHOT PWM Ramp Control register */
> + data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
> +
> + /* misc setup registers */
> + data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
> + data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
> + data->sf_tach_to_pwm = lm93_read_byte(client,
> + LM93_REG_SF_TACH_TO_PWM);
> +
> + /* write back alarm values to clear */
> + for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
> + lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
> +}
> +
> +/* update routine which uses SMBus block data commands */
> +static void lm93_update_client_full(struct lm93_data *data,
> + struct i2c_client *client)
> +{
> + dev_dbg(&client->dev,"lm93: starting device update "
> + "(block data enabled)\n");
> +
> + /* in1 - in16: values & limits */
> + lm93_read_block(client, 3, (u8 *)(data->block3));
> + lm93_read_block(client, 7, (u8 *)(data->block7));
> +
> + /* temp1 - temp4: values */
> + lm93_read_block(client, 2, (u8 *)(data->block2));
> +
> + /* prochot1 - prochot2: values */
> + lm93_read_block(client, 4, (u8 *)(data->block4));
> +
> + /* fan1 - fan4: values & limits */
> + lm93_read_block(client, 5, (u8 *)(data->block5));
> + lm93_read_block(client, 8, (u8 *)(data->block8));
> +
> + /* pmw control registers */
> + lm93_read_block(client, 9, (u8 *)(data->block9));
> +
> + /* alarm values */
> + lm93_read_block(client, 1, (u8 *)(&data->block1));
> +
> + /* auto/pwm registers */
> + lm93_read_block(client, 10, (u8 *)(&data->block10));
> +
> + lm93_update_client_common(data, client);
> +}
> +
> +/* update routine which uses SMBus byte/word data commands only */
> +static void lm93_update_client_min(struct lm93_data *data,
> + struct i2c_client *client)
> +{
> + int i,j;
> + u8 *ptr;
> +
> + dev_dbg(&client->dev,"lm93: starting device update "
> + "(block data disabled)\n");
> +
> + /* in1 - in16: values & limits */
> + for (i = 0; i < 16; i++) {
> + data->block3[i] =
> + lm93_read_byte(client, LM93_REG_IN(i));
> + data->block7[i].min =
> + lm93_read_byte(client, LM93_REG_IN_MIN(i));
> + data->block7[i].max =
> + lm93_read_byte(client, LM93_REG_IN_MAX(i));
> + }
> +
> + /* temp1 - temp4: values */
> + for (i = 0; i < 4; i++) {
> + data->block2[i] =
> + lm93_read_byte(client, LM93_REG_TEMP(i));
> + }
> +
> + /* prochot1 - prochot2: values */
> + for (i = 0; i < 2; i++) {
> + data->block4[i].cur =
> + lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
> + data->block4[i].avg =
> + lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
> + }
> +
> + /* fan1 - fan4: values & limits */
> + for (i = 0; i < 4; i++) {
> + data->block5[i] =
> + lm93_read_word(client, LM93_REG_FAN(i));
> + data->block8[i] =
> + lm93_read_word(client, LM93_REG_FAN_MIN(i));
> + }
> +
> + /* pwm control registers */
> + for (i = 0; i < 2; i++) {
> + for (j = 0; j < 4; j++) {
> + data->block9[i][j] =
> + lm93_read_byte(client, LM93_REG_PWM_CTL(i,j));
> + }
> + }
> +
> + /* alarm values */
> + for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
> + *(ptr + i) =
> + lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
> + }
> +
> + /* auto/pwm (base temp) registers */
> + for (i = 0; i < 4; i++) {
> + data->block10.base[i] =
> + lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
> + }
> +
> + /* auto/pwm (offset temp) registers */
> + for (i = 0; i < 12; i++) {
> + data->block10.offset[i] =
> + lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
> + }
> +
> + lm93_update_client_common(data, client);
> +}
> +
> +static void lm93_init_client(struct i2c_client *client)
> +{
> + int i;
> + u8 reg;
> +
> + /* configure VID pin input thresholds */
> + reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
> + lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
> + reg | (vid_agtl ? 0x03 : 0x00));
> +
> + if (init) {
> + /* enable #ALERT pin */
> + reg = lm93_read_byte(client, LM93_REG_CONFIG);
> + lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
> +
> + /* enable ASF mode for BMC status registers */
> + reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
> + lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
> +
> + /* set sleep state to S0 */
> + lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
> +
> + /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
> + reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
> + reg &= ~0x03;
> + reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
> + reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
> + lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
> + }
> +
> + /* start monitoring */
> + reg = lm93_read_byte(client, LM93_REG_CONFIG);
> + lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
> +
> + /* spin until ready */
> + for (i=0; i<20; i++) {
> + mdelay(10);
Use msleep() instead of mdelay() here - extra waiting won't hurt.
> + if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
> + return;
> + }
> +
> + dev_warn(&client->dev,"lm93: timed out waiting for sensor "
> + "chip to signal ready!\n");
> +}
> +
> +static int lm93_detect(struct i2c_adapter *adapter, int address, int kind)
> +{
> + struct lm93_data *data;
> + struct i2c_client *client;
> +
> + int err = -ENODEV, func;
> + void (*update)(struct lm93_data *, struct i2c_client *);
> +
> + /* lm93 is SMBus only */
> + if (i2c_is_isa_adapter(adapter)) {
> + dev_dbg(&adapter->dev,"lm93: detect failed, "
> + "cannot attach to legacy adapter!\n");
> + goto err_out;
> + }
> +
The above test is not present in any other driver in the mainline kernel; I
think it's just leftover from the 2.4 style. The next test will fail anyway if
this one is removed, so please remove it. (Thus you can kill the i2c-isa.h
include also.)
Also: Jean Delvare is going to kill the whole i2c-isa business soon anyway.
> + /* choose update routine based on bus capabilities */
> + func = i2c_get_functionality(adapter);
> + if ( ((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
> + (!disable_block) ) {
> + dev_dbg(&adapter->dev,"lm93: using SMBus block data "
> + "transactions\n");
> + update = lm93_update_client_full;
> + } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
> + dev_dbg(&adapter->dev,"lm93: disabled SMBus block data "
> + "transactions\n");
> + update = lm93_update_client_min;
> + } else {
> + dev_dbg(&adapter->dev,"lm93: detect failed, "
> + "smbus byte and/or word data not supported!\n");
> + goto err_out;
> + }
> +
> + /* 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 lm78_{read,write}_value. */
> +
> + if ( !(client = kzalloc(sizeof(struct i2c_client) +
> + sizeof(struct lm93_data), GFP_KERNEL))) {
Since you're moving the i2c client into struct lm93_data...
if (!(data = kzalloc(sizeof(struct lm93_data), GFP_KERNEL))) {
> + dev_dbg(&adapter->dev,"lm93: out of memory!\n");
> + err = -ENOMEM;
> + goto err_out;
> + }
> +
> + data = (struct lm93_data *)(client + 1);
Likewise, 'client = &data->client' instead of the above line.
> + i2c_set_clientdata(client, data);
> + client->addr = address;
> + client->adapter = adapter;
> + client->driver = &lm93_driver;
> + client->flags = 0;
> + init_MUTEX(&data->lock);
> +
> + /* detection */
> + if (kind < 0) {
> + int mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
> +
> + if (mfr != 0x01) {
> + dev_dbg(&adapter->dev,"lm93: detect failed, "
> + "bad manufacturer id 0x%02x!\n", mfr);
> + goto err_free;
> + }
> + }
> +
> + if (kind <= 0) {
> + int ver = lm93_read_byte(client, LM93_REG_VER);
> +
> + if ((ver == LM93_MFR_ID) || (ver == LM93_MFR_ID_PROTOTYPE)) {
> + kind = lm93;
> + } else {
> + dev_dbg(&adapter->dev,"lm93: detect failed, "
> + "bad version id 0x%02x!\n", ver);
> + if (kind == 0)
> + dev_dbg(&adapter->dev,"lm93: "
> + "(ignored 'force' parameter)\n");
> + goto err_free;
> + }
> + }
> +
> + /* fill in remaining client fields */
> + strlcpy(client->name, "lm93", I2C_NAME_SIZE);
> + dev_dbg(&adapter->dev,"lm93: loading %s at %d,0x%02x\n",
> + client->name, i2c_adapter_id(client->adapter),
> + client->addr);
> +
> + /* housekeeping */
> + data->type = kind;
Kill that line; the 'type' element is otherwise unused.
> + data->valid = 0;
> + data->update = update;
> + mutex_init(&data->update_lock);
> +
> + /* tell the I2C layer a new client has arrived */
> + if ((err = i2c_attach_client(client)))
> + goto err_free;
> +
> + /* initialize the chip */
> + lm93_init_client(client);
> +
> + err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
> + if (err)
> + goto err_detach;
> +
> + /* Register hwmon driver class */
> + data->class_dev = hwmon_device_register(&client->dev);
> + if ( !IS_ERR(data->class_dev))
> + return 0;
> +
> + err = PTR_ERR(data->class_dev);
> + dev_err(&client->dev, "error registering hwmon device.\n");
> + sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
> +err_detach:
> + i2c_detach_client(client);
> +err_free:
> + kfree(client);
> +err_out:
> + return err;
> +}
> +
> +/* This function is called when:
> + * lm93_driver is inserted (when this module is loaded), for each
> + available adapter
> + * when a new adapter is inserted (and lm93_driver is still present) */
> +static int lm93_attach_adapter(struct i2c_adapter *adapter)
> +{
> + return i2c_probe(adapter, &addr_data, lm93_detect);
> +}
> +
> +static int lm93_detach_client(struct i2c_client *client)
> +{
> + struct lm93_data *data = i2c_get_clientdata(client);
> + int err = 0;
> +
> + sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
> + hwmon_device_unregister(data->class_dev);
> +
The hwmon_device_unregister() should precede the sysfs_remove_group().
> + err = i2c_detach_client(client);
> + if (!err)
> + kfree(client);
Given earlier comments, this changes to...
kfree(data);
> + return err;
> +}
> +
> +static int __init lm93_init(void)
> +{
> + return i2c_add_driver(&lm93_driver);
> +}
> +
> +static void __exit lm93_exit(void)
> +{
> + i2c_del_driver(&lm93_driver);
> +}
> +
> +MODULE_AUTHOR("Mark M. Hoffman <mhoffman at lightlink.com>, "
> + "Hans J. Koch <hjk at linutronix.de");
> +MODULE_DESCRIPTION("LM93 driver");
> +MODULE_LICENSE("GPL");
> +
> +module_init(lm93_init);
> +module_exit(lm93_exit);
> Index: linux-2.6.21-rc/Documentation/hwmon/lm93
> ===================================================================
> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
> +++ linux-2.6.21-rc/Documentation/hwmon/lm93 2007-04-13 17:08:16.000000000 +0200
> @@ -0,0 +1,410 @@
> +Kernel driver lm93
> +==================
> +
> +Supported chips:
> + * National Semiconductor LM93
> + Prefix 'lm93'
> + Addresses scanned: I2C 0x2c-0x2e
> + Datasheet: http://www.national.com/ds.cgi/LM/LM93.pdf
> +
> +Author:
> + Mark M. Hoffman <mhoffman at lightlink.com>
> + Ported to 2.6 by Eric J. Bowersox <ericb at aspsys.com>
Add yourself to the doc file also, if you want.
> +
> +Module Parameters
> +-----------------
> +
> +(specific to LM93)
> +* init: integer
> + Set to non-zero to force some initializations (default is 0).
> +* disable_block: integer
> + A "0" allows SMBus block data transactions if the host supports them. A "1"
> + disables SMBus block data transactions. The default is 0.
> +* vccp_limit_type: integer array (2)
> + Configures in7 and in8 limit type, where 0 means absolute and non-zero
> + means relative. "Relative" here refers to "Dynamic Vccp Monitoring using
> + VID" from the datasheet. It greatly simplifies the interface to allow
> + only one set of limits (absolute or relative) to be in operation at a
> + time (even though the hardware is capable of enabling both). There's
> + not a compelling use case for enabling both at once, anyway. The default
> + is "0,0".
> +* vid_agtl: integer
> + A "0" configures the VID pins for V(ih) = 2.1V min, V(il) = 0.8V max.
> + A "1" configures the VID pins for V(ih) = 0.8V min, V(il) = 0.4V max.
> + (The latter setting is referred to as AGTL+ Compatible in the datasheet.)
> + I.e. this parameter controls the VID pin input thresholds; if your VID
> + inputs are not working, try changing this. The default value is "0".
> +
> +(common among sensor drivers)
> +* force: short array (min = 1, max = 48)
> + List of adapter,address pairs to assume to be present. Autodetection
> + of the target device will still be attempted. Use one of the more
> + specific force directives below if this doesn't detect the device.
> +* force_lm93: short array (min = 1, max = 48)
> + List of adapter,address pairs which are unquestionably assumed to contain
> + a 'lm93' chip
> +* ignore: short array (min = 1, max = 48)
> + List of adapter,address pairs not to scan
> +* ignore_range: short array (min = 1, max = 48)
> + List of adapter,start-addr,end-addr triples not to scan
> +* probe: short array (min = 1, max = 48)
> + List of adapter,address pairs to scan additionally
> +* probe_range: short array (min = 1, max = 48)
> + List of adapter,start-addr,end-addr triples to scan additionally
> +
> +
> +Hardware Description
> +--------------------
> +
> +(from the datasheet)
> +
> +The LM93, hardware monitor, has a two wire digital interface compatible with
> +SMBus 2.0. Using an 8-bit ADC, the LM93 measures the temperature of two remote
> +diode connected transistors as well as its own die and 16 power supply
> +voltages. To set fan speed, the LM93 has two PWM outputs that are each
> +controlled by up to four temperature zones. The fancontrol algorithm is lookup
> +table based. The LM93 includes a digital filter that can be invoked to smooth
> +temperature readings for better control of fan speed. The LM93 has four
> +tachometer inputs to measure fan speed. Limit and status registers for all
> +measured values are included. The LM93 builds upon the functionality of
> +previous motherboard management ASICs and uses some of the LM85 s features
> +(i.e. smart tachometer mode). It also adds measurement and control support
> +for dynamic Vccp monitoring and PROCHOT. It is designed to monitor a dual
> +processor Xeon class motherboard with a minimum of external components.
> +
> +
> +Driver Description
> +------------------
> +
> +This driver implements support for the National Semiconductor LM93.
> +
> +
> +User Interface
> +--------------
> +
> +#PROCHOT:
> +
> +The LM93 can monitor two #PROCHOT signals. The results are found in the
> +sysfs files prochot1, prochot2, prochot1_avg, prochot2_avg, prochot1_max,
> +and prochot2_max. prochot1_max and prochot2_max contain the user limits
> +for #PROCHOT1 and #PROCHOT2, respectively. prochot1 and prochot2 contain
> +the current readings for the most recent complete time interval. The
> +value of prochot1_avg and prochot2_avg is something like a 2 period
> +exponential moving average (but not quite - check the datasheet). Note
> +that this third value is calculated by the chip itself. All values range
> +from 0-255 where 0 indicates no throttling, and 255 indicates > 99.6%.
> +
> +The monitoring intervals for the two #PROCHOT signals is also configurable.
> +These intervals can be found in the sysfs files prochot1_interval and
> +prochot2_interval. The values in these files specify the intervals for
> +#P1_PROCHOT and #P2_PROCHOT, respectively. Selecting a value not in this
> +list will cause the driver to use the next largest interval. The available
> +intervals are:
> +
> +#PROCHOT intervals: 0.73, 1.46, 2.9, 5.8, 11.7, 23.3, 46.6, 93.2, 186, 372
> +
> +It is possible to configure the LM93 to logically short the two #PROCHOT
> +signals. I.e. when #P1_PROCHOT is asserted, the LM93 will automatically
> +assert #P2_PROCHOT, and vice-versa. This mode is enabled by writing a
> +non-zero integer to the sysfs file prochot_short.
> +
> +The LM93 can also override the #PROCHOT pins by driving a PWM signal onto
> +one or both of them. When overridden, the signal has a period of 3.56 mS,
> +a minimum pulse width of 5 clocks (at 22.5kHz => 6.25% duty cycle), and
> +a maximum pulse width of 80 clocks (at 22.5kHz => 99.88% duty cycle).
> +
> +The sysfs files prochot1_override and prochot2_override contain boolean
> +intgers which enable or disable the override function for #P1_PROCHOT and
> +#P2_PROCHOT, respectively. The sysfs file prochot_override_duty_cycle
> +contains a value controlling the duty cycle for the PWM signal used when
> +the override function is enabled. This value ranges from 0 to 15, with 0
> +indicating minimum duty cycle and 15 indicating maximum.
> +
> +#VRD_HOT:
> +
> +The LM93 can monitor two #VRD_HOT signals. The results are found in the
> +sysfs files vrdhot1 and vrdhot2. There is one value per file: a boolean for
> +which 1 indicates #VRD_HOT is asserted and 0 indicates it is negated. These
> +files are read-only.
> +
> +Smart Tach Mode:
> +
> +(from the datasheet)
> +
> + If a fan is driven using a low-side drive PWM, the tachometer
> + output of the fan is corrupted. The LM93 includes smart tachometer
> + circuitry that allows an accurate tachometer reading to be
> + achieved despite the signal corruption. In smart tach mode all
> + four signals are measured within 4 seconds.
> +
> +Smart tach mode is enabled by the driver by writing 1 or 2 (associating the
> +the fan tachometer with a pwm) to the sysfs file fan<n>_smart_tach. A zero
> +will disable the function for that fan. Note that Smart tach mode cannot be
> +enabled if the PWM output frequency is 22500 Hz (see below).
> +
> +Manual PWM:
> +
> +The LM93 has a fixed or override mode for the two PWM outputs (although, there
> +are still some conditions that will override even this mode - see section
> +15.10.6 of the datasheet for details.) The sysfs files pwm1_override
> +and pwm2_override are used to enable this mode; each is a boolean integer
> +where 0 disables and 1 enables the manual control mode. The sysfs files pwm1
> +and pwm2 are used to set the manual duty cycle; each is an integer (0-255)
> +where 0 is 0% duty cycle, and 255 is 100%. Note that the duty cycle values
> +are constrained by the hardware. Selecting a value which is not available
> +will cause the driver to use the next largest value. Also note: when manual
> +PWM mode is disabled, the value of pwm1 and pwm2 indicates the current duty
> +cycle chosen by the h/w.
> +
> +PWM Output Frequency:
> +
> +The LM93 supports several different frequencies for the PWM output channels.
> +The sysfs files pwm1_freq and pwm2_freq are used to select the frequency. The
> +frequency values are constrained by the hardware. Selecting a value which is
> +not available will cause the driver to use the next largest value. Also note
> +that this parameter has implications for the Smart Tach Mode (see above).
> +
> +PWM Output Frequencies: 12, 36, 48, 60, 72, 84, 96, 22500 (h/w default)
> +
> +Automatic PWM:
> +
> +The LM93 is capable of complex automatic fan control, with many different
> +points of configuration. To start, each PWM output can be bound to any
> +combination of eight control sources. The final PWM is the largest of all
> +individual control sources to which the PWM output is bound.
> +
> +The eight control sources are: temp1-temp4 (aka "zones" in the datasheet),
> +#PROCHOT 1 & 2, and #VRDHOT 1 & 2. The bindings are expressed as a bitmask
> +in the sysfs files pwm<n>_auto_channels, where a "1" enables the binding, and
> + a "0" disables it. The h/w default is 0x0f (all temperatures bound).
> +
> + 0x01 - Temp 1
> + 0x02 - Temp 2
> + 0x04 - Temp 3
> + 0x08 - Temp 4
> + 0x10 - #PROCHOT 1
> + 0x20 - #PROCHOT 2
> + 0x40 - #VRDHOT 1
> + 0x80 - #VRDHOT 2
> +
> +The function y = f(x) takes a source temperature x to a PWM output y. This
> +function of the LM93 is derived from a base temperature and a table of 12
> +temperature offsets. The base temperature is expressed in degrees C in the
> +sysfs files temp<n>_auto_base. The offsets are expressed in cumulative
> +degrees C, with the value of offset <i> for temperature value <n> being
> +contained in the file temp<n>_auto_offset<i>. E.g. if the base temperature
> +is 40C:
> +
> + offset # temp<n>_auto_offset<i> range pwm
> + 1 0 - 25.00%
> + 2 0 - 28.57%
> + 3 1 40C - 41C 32.14%
> + 4 1 41C - 42C 35.71%
> + 5 2 42C - 44C 39.29%
> + 6 2 44C - 46C 42.86%
> + 7 2 48C - 50C 46.43%
> + 8 2 50C - 52C 50.00%
> + 9 2 52C - 54C 53.57%
> + 10 2 54C - 56C 57.14%
> + 11 2 56C - 58C 71.43%
> + 12 2 58C - 60C 85.71%
> + > 60C 100.00%
> +
> +Valid offsets are in the range 0C <= x <= 7.5C in 0.5C increments.
> +
> +There is an independent base temperature for each temperature channel. Note,
> +however, there are only two tables of offsets: one each for temp[12] and
> +temp[34]. Therefore, any change to e.g. temp1_auto_offset<i> will also
> +affect temp2_auto_offset<i>.
> +
> +The LM93 can also apply hysteresis to the offset table, to prevent unwanted
> +oscillation between two steps in the offsets table. These values are found in
> +the sysfs files temp<n>_auto_offset_hyst. The value in this file has the
> +same representation as in temp<n>_auto_offset<i>.
> +
> +If a temperature reading falls below the base value for that channel, the LM93
> +will use the minimum PWM value. These values are found in the sysfs files
> +temp<n>_auto_pwm_min. Note, there are only two minimums: one each for temp[12]
> +and temp[34]. Therefore, any change to e.g. temp1_auto_pwm_min will also
> +affect temp2_auto_pwm_min.
> +
> +PWM Spin-Up Cycle:
> +
> +A spin-up cycle occurs when a PWM output is commanded from 0% duty cycle to
> +some value > 0%. The LM93 supports a minimum duty cycle during spin-up. These
> +values are found in the sysfs files pwm<n>_auto_spinup_min. The value in this
> +file has the same representation as other PWM duty cycle values. The
> +duration of the spin-up cycle is also configurable. These values are found in
> +the sysfs files pwm<n>_auto_spinup_time. The value in this file is
> +the spin-up time in seconds. The available spin-up times are constrained by
> +the hardware. Selecting a value which is not available will cause the driver
> +to use the next largest value.
> +
> +Spin-up Durations: 0 (disabled, h/w default), 0.1, 0.25, 0.4, 0.7, 1.0,
> + 2.0, 4.0
> +
> +#PROCHOT and #VRDHOT PWM Ramping:
> +
> +If the #PROCHOT or #VRDHOT signals are asserted while bound to a PWM output
> +channel, the LM93 will ramp the PWM output up to 100% duty cycle in discrete
> +steps. The duration of each step is configurable. There are two files, with
> +one value each in seconds: pwm_auto_prochot_ramp and pwm_auto_vrdhot_ramp.
> +The available ramp times are constrained by the hardware. Selecting a value
> +which is not available will cause the driver to use the next largest value.
> +
> +Ramp Times: 0 (disabled, h/w default) to 0.75 in 0.05 second intervals
> +
> +Fan Boost:
> +
> +For each temperature channel, there is a boost temperature: if the channel
> +exceeds this limit, the LM93 will immediately drive both PWM outputs to 100%.
> +This limit is expressed in degrees C in the sysfs files temp<n>_auto_boost.
> +There is also a hysteresis temperature for this function: after the boost
> +limit is reached, the temperature channel must drop below this value before
> +the boost function is disabled. This temperature is also expressed in degrees
> +C in the sysfs files temp<n>_auto_boost_hyst.
> +
> +GPIO Pins:
> +
> +The LM93 can monitor the logic level of four dedicated GPIO pins as well as the
> +four tach input pins. GPIO0-GPIO3 correspond to (fan) tach 1-4, respectively.
> +All eight GPIOs are read by reading the bitmask in the sysfs file gpio. The
> +LSB is GPIO0, and the MSB is GPIO7.
> +
> +
> +LM93 Unique sysfs Files
> +-----------------------
> +
> + file description
> + -------------------------------------------------------------
> +
> + prochot<n> current #PROCHOT %
> +
> + prochot<n>_avg moving average #PROCHOT %
> +
> + prochot<n>_max limit #PROCHOT %
> +
> + prochot_short enable or disable logical #PROCHOT pin short
> +
> + prochot<n>_override force #PROCHOT assertion as PWM
> +
> + prochot_override_duty_cycle
> + duty cycle for the PWM signal used when
> + #PROCHOT is overridden
> +
> + prochot<n>_interval #PROCHOT PWM sampling interval
> +
> + vrdhot<n> 0 means negated, 1 means asserted
> +
> + fan<n>_smart_tach enable or disable smart tach mode
> +
> + pwm<n>_auto_channels select control sources for PWM outputs
> +
> + pwm<n>_auto_spinup_min minimum duty cycle during spin-up
> +
> + pwm<n>_auto_spinup_time duration of spin-up
> +
> + pwm_auto_prochot_ramp ramp time per step when #PROCHOT asserted
> +
> + pwm_auto_vrdhot_ramp ramp time per step when #VRDHOT asserted
> +
> + temp<n>_auto_base temperature channel base
> +
> + temp<n>_auto_offset[1-12]
> + temperature channel offsets
> +
> + temp<n>_auto_offset_hyst
> + temperature channel offset hysteresis
> +
> + temp<n>_auto_boost temperature channel boost (PWMs to 100%) limit
> +
> + temp<n>_auto_boost_hyst temperature channel boost hysteresis
> +
> + gpio input state of 8 GPIO pins; read-only
> +
> +
> +Sample Configuration File
> +-------------------------
> +
> +Here is a sample LM93 chip config for sensors.conf:
> +
> +---------- cut here ----------
> +chip "lm93-*"
> +
> +# VOLTAGE INPUTS
> +
> + # labels and scaling based on datasheet recommendations
> + label in1 "+12V1"
> + compute in1 @ * 12.945, @ / 12.945
> + set in1_min 12 * 0.90
> + set in1_max 12 * 1.10
> +
> + label in2 "+12V2"
> + compute in2 @ * 12.945, @ / 12.945
> + set in2_min 12 * 0.90
> + set in2_max 12 * 1.10
> +
> + label in3 "+12V3"
> + compute in3 @ * 12.945, @ / 12.945
> + set in3_min 12 * 0.90
> + set in3_max 12 * 1.10
> +
> + label in4 "FSB_Vtt"
> +
> + label in5 "3GIO"
> +
> + label in6 "ICH_Core"
> +
> + label in7 "Vccp1"
> +
> + label in8 "Vccp2"
> +
> + label in9 "+3.3V"
> + set in9_min 3.3 * 0.90
> + set in9_max 3.3 * 1.10
> +
> + label in10 "+5V"
> + set in10_min 5.0 * 0.90
> + set in10_max 5.0 * 1.10
> +
> + label in11 "SCSI_Core"
> +
> + label in12 "Mem_Core"
> +
> + label in13 "Mem_Vtt"
> +
> + label in14 "Gbit_Core"
> +
> + # Assuming R1/R2 = 4.1143, and 3.3V reference
> + # -12V = (4.1143 + 1) * (@ - 3.3) + 3.3
> + label in15 "-12V"
> + compute in15 @ * 5.1143 - 13.57719, (@ + 13.57719) / 5.1143
> + set in15_min -12 * 0.90
> + set in15_max -12 * 1.10
> +
> + label in16 "+3.3VSB"
> + set in16_min 3.3 * 0.90
> + set in16_max 3.3 * 1.10
> +
> +# TEMPERATURE INPUTS
> +
> + label temp1 "CPU1"
> + label temp2 "CPU2"
> + label temp3 "LM93"
> +
> +# TACHOMETER INPUTS
> +
> + label fan1 "Fan1"
> + set fan1_min 3000
> + label fan2 "Fan2"
> + set fan2_min 3000
> + label fan3 "Fan3"
> + set fan3_min 3000
> + label fan4 "Fan4"
> + set fan4_min 3000
> +
> +# PWM OUTPUTS
> +
> + label pwm1 "CPU1"
> + label pwm2 "CPU2"
> +
--
Mark M. Hoffman
mhoffman at lightlink.com
