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Commit 62e88cfd authored by Linus Torvalds's avatar Linus Torvalds
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Merge bk://linuxusb.bkbits.net/i2c-2.6 

into ppc970.osdl.org:/home/torvalds/v2.6/linux
parents 340de76c de2bd6e9
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Documentation/i2c/porting-clients
View file @ 62e88cfd
Revision 3, 2003-10-04
Revision 4, 2004-03-30
Jean Delvare <khali@linux-fr.org>
Greg KH <greg@kroah.com>
......@@ -24,9 +24,10 @@ Technical changes:
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
#include <linux/i2c-vid.h> /* if you need VRM support */
#include <asm/io.h> /* if you have I/O operations */
Some extra headers may be required for a given driver.
#include <linux/i2c-vid.h> /* if you need VRM support */
#include <asm/io.h> /* if you have I/O operations */
Please respect this inclusion order. Some extra headers may be
required for a given driver (e.g. "lm75.h").
* [Addresses] SENSORS_I2C_END becomes I2C_CLIENT_END, SENSORS_ISA_END
becomes I2C_CLIENT_ISA_END.
......@@ -37,9 +38,9 @@ Technical changes:
names for sysfs files (see the Sysctl section below).
* [Function prototypes] The detect functions loses its flags
parameter. Sysctl (e.g. lm75_temp) and miscellaneous (e.g.
swap_bytes) functions are off the list of prototypes. This
usually leaves five prototypes:
parameter. Sysctl (e.g. lm75_temp) and miscellaneous functions
are off the list of prototypes. This usually leaves five
prototypes:
static int lm75_attach_adapter(struct i2c_adapter *adapter);
static int lm75_detect(struct i2c_adapter *adapter, int address,
int kind);
......@@ -70,13 +71,14 @@ Technical changes:
* [Detect] As mentioned earlier, the flags parameter is gone.
The type_name and client_name strings are replaced by a single
name string, which will be filled with a lowercase, short string
(typically the driver name, e.g. "lm75"). The errorN labels are
reduced to the number needed. If that number is 2 (i2c-only
drivers), it is advised that the labels are named exit and
exit_free. For i2c+isa drivers, labels should be named ERROR0,
ERROR1 and ERROR2. Don't forget to properly set err before
jumping to error labels. By the way, labels should be
left-aligned.
(typically the driver name, e.g. "lm75").
In i2c-only drivers, drop the i2c_is_isa_adapter check, it's
useless.
The errorN labels are reduced to the number needed. If that number
is 2 (i2c-only drivers), it is advised that the labels are named
exit and exit_free. For i2c+isa drivers, labels should be named
ERROR0, ERROR1 and ERROR2. Don't forget to properly set err before
jumping to error labels. By the way, labels should be left-aligned.
Use memset to fill the client and data area with 0x00.
Use i2c_set_clientdata to set the client data (as opposed to
a direct access to client->data).
......@@ -85,6 +87,11 @@ Technical changes:
device_create_file. Move the driver initialization before any
sysfs file creation.
* [Init] Limits must not be set by the driver (can be done later in
user-space). Chip should not be reset default (although a module
parameter may be used to force is), and initialization should be
limited to the strictly necessary steps.
* [Detach] Get rid of data, remove the call to
i2c_deregister_entry.
......@@ -92,7 +99,8 @@ Technical changes:
i2c_get_clientdata(client) instead.
* [Interface] Init function should not print anything. Make sure
there is a MODULE_LICENSE() line.
there is a MODULE_LICENSE() line, at the bottom of the file
(after MODULE_AUTHOR() and MODULE_DESCRIPTION(), in this order).
Coding policy:
......@@ -102,8 +110,7 @@ Coding policy:
can. Calls to printk/pr_debug for debugging purposes are replaced
by calls to dev_dbg. Here is an example on how to call it (taken
from lm75_detect):
dev_dbg(&adapter->dev,
"lm75_detect called for an ISA bus adapter?!?\n");
dev_dbg(&client->dev, "Starting lm75 update\n");
Replace other printk calls with the dev_info, dev_err or dev_warn
function, as appropriate.
......@@ -119,3 +126,8 @@ Coding policy:
* [Layout] Avoid extra empty lines between comments and what they
comment. Respect the coding style (see Documentation/CodingStyle),
in particular when it comes to placing curly braces.
* [Comments] Make sure that no comment refers to a file that isn't
part of the Linux source tree (typically doc/chips/<chip name>),
and that remaining comments still match the code. Merging comment
lines when possible is encouraged.
Documentation/i2c/sysfs-interface
View file @ 62e88cfd
......@@ -74,18 +74,15 @@ to cause an alarm) is chip-dependent.
************
in[0-8]_min Voltage min value.
Fixed point value in form XXXX. Divide by 1000 to get
Volts.
Unit: millivolt
Read/Write
in[0-8]_max Voltage max value.
Fixed point value in form XXXX. Divide by 1000 to get
Volts.
Unit: millivolt
Read/Write
in[0-8]_input Voltage input value.
Fixed point value in form XXXX. Divide by 1000 to get
Volts.
Unit: millivolt
Read only
Actual voltage depends on the scaling resistors on the
motherboard, as recommended in the chip datasheet.
......@@ -95,10 +92,10 @@ in[0-8]_input Voltage input value.
However, some drivers (notably lm87 and via686a)
do scale, with various degrees of success.
These drivers will output the actual voltage.
First two values are read/write and third is read only.
Typical usage:
in0_* CPU #1 voltage (not scaled)
in1_* CPU #1 voltage (not scaled)
in1_* CPU #2 voltage (not scaled)
in2_* 3.3V nominal (not scaled)
in3_* 5.0V nominal (scaled)
in4_* 12.0V nominal (scaled)
......@@ -108,17 +105,16 @@ in[0-8]_input Voltage input value.
in8_* varies
in0_ref CPU core reference voltage.
Unit: millivolt
Read only.
Fixed point value in form XXXX corresponding to CPU core
voltage as told to the sensor chip. Divide by 1000 to
get Volts. Not always correct.
Not always correct.
vrm Voltage Regulator Module version number.
Read only.
Two digit number (XX), first is major version, second is
Two digit number, first is major version, second is
minor version.
Affects the way the driver calculates the core voltage from
the vid pins. See doc/vid for details.
Affects the way the driver calculates the CPU core reference
voltage from the vid pins.
********
......@@ -126,23 +122,23 @@ vrm Voltage Regulator Module version number.
********
fan[1-3]_min Fan minimum value
Integer value indicating RPM
Unit: revolution/min (RPM)
Read/Write.
fan[1-3]_input Fan input value.
Integer value indicating RPM
Unit: revolution/min (RPM)
Read only.
fan[1-3]_div Fan divisor.
Integers in powers of two (1,2,4,8,16,32,64,128).
Some chips only support values 1,2,4,8.
See doc/fan-divisors for details.
Integer value in powers of two (1, 2, 4, 8, 16, 32, 64, 128).
Some chips only support values 1, 2, 4 and 8.
Note that this is actually an internal clock divisor, which
affects the measurable speed range, not the read value.
fan[1-3]_pwm Pulse width modulation fan control.
Integer 0 - 255
Integer value in the range 0 to 255
Read/Write
255 is max or 100%.
Corresponds to the fans 1-3.
fan[1-3]_pwm_enable
Switch PWM on and off.
......@@ -157,46 +153,46 @@ fan[1-3]_pwm_enable
****************
temp[1-3]_type Sensor type selection.
Integers 1,2,3, or thermistor Beta value (3435)
Integers 1, 2, 3 or thermistor Beta value (3435)
Read/Write.
1: PII/Celeron Diode
2: 3904 transistor
3: thermal diode
Not all types are supported by all chips
temp[1-4]_max Temperature max value.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius.
Unit: millidegree Celcius
Read/Write value.
temp[1-3]_min Temperature min value.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius.
Unit: millidegree Celcius
Read/Write value.
temp[1-3]_max_hyst
Temperature hysteresis value for max limit.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius. Must be reported as an
absolute temperature, NOT a delta from the max value.
Unit: millidegree Celcius
Must be reported as an absolute temperature, NOT a delta
from the max value.
Read/Write value.
temp[1-4]_input Temperature input value.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius.
Unit: millidegree Celcius
Read only value.
temp[1-4]_crit Temperature critical value, typically greater than
corresponding temp_max values.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius.
Unit: millidegree Celcius
Read/Write value.
temp[1-2]_crit_hyst
Temperature hysteresis value for critical limit.
Fixed point value in form XXXXX and should be divided by
1000 to get degrees Celsius. Must be reported as an
absolute temperature, NOT a delta from the critical value.
Unit: millidegree Celcius
Must be reported as an absolute temperature, NOT a delta
from the critical value.
Read/Write value.
If there are multiple temperature sensors, temp1_* is
generally the sensor inside the chip itself, generally
generally the sensor inside the chip itself,
reported as "motherboard temperature". temp2_* to
temp4_* are generally sensors external to the chip
itself, for example the thermal diode inside the CPU or
......@@ -211,15 +207,15 @@ Note that no known chip provides current measurements as of writing,
so this part is theoretical, so to say.
curr[1-n]_max Current max value
Fixed point XXXXX, divide by 1000 to get Amps.
Unit: milliampere
Read/Write.
curr[1-n]_min Current min value.
Fixed point XXXXX, divide by 1000 to get Amps.
Unit: milliampere
Read/Write.
curr[1-n]_input Current input value
Fixed point XXXXX, divide by 1000 to get Amps.
Unit: milliampere
Read only.
......@@ -246,7 +242,7 @@ beep_enable Beep/interrupt enable
beep_mask Bitmask for beep.
Same format as 'alarms' with the same bit locations.
Read only.
Read/Write
eeprom Raw EEPROM data in binary form.
Read only.
arch/i386/pci/irq.c
View file @ 62e88cfd
......@@ -591,12 +591,13 @@ static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router,
{
switch(device)
{
case PCI_DEVICE_ID_AL_M1533:
case PCI_DEVICE_ID_AL_M1533:
case PCI_DEVICE_ID_AL_M1563:
printk("PCI: Using ALI IRQ Router\n");
r->name = "ALI";
r->get = pirq_ali_get;
r->set = pirq_ali_set;
return 1;
/* Should add 156x some day */
}
return 0;
}
......
drivers/i2c/busses/Kconfig
View file @ 62e88cfd
......@@ -17,6 +17,18 @@ config I2C_ALI1535
This driver can also be built as a module. If so, the module
will be called i2c-ali1535.
config I2C_ALI1563
tristate "ALI 1563"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the SMB
Host controller on Acer Labs Inc. (ALI) M1563 South Bridges. The SMB
controller is part of the 7101 device, which is an ACPI-compliant
Power Management Unit (PMU).
This driver can also be built as a module. If so, the module
will be called i2c-ali1563.
config I2C_ALI15X3
tristate "ALI 15x3"
depends on I2C && PCI && EXPERIMENTAL
......
drivers/i2c/busses/Makefile
View file @ 62e88cfd
......@@ -3,6 +3,7 @@
#
obj-$(CONFIG_I2C_ALI1535) += i2c-ali1535.o
obj-$(CONFIG_I2C_ALI1563) += i2c-ali1563.o
obj-$(CONFIG_I2C_ALI15X3) += i2c-ali15x3.o
obj-$(CONFIG_I2C_AMD756) += i2c-amd756.o
obj-$(CONFIG_I2C_AMD8111) += i2c-amd8111.o
......
drivers/i2c/busses/i2c-ali1563.c 0 → 100644
View file @ 62e88cfd
This diff is collapsed.
drivers/i2c/chips/Kconfig
View file @ 62e88cfd
......@@ -209,4 +209,25 @@ config SENSORS_EEPROM
This driver can also be built as a module. If so, the module
will be called eeprom.
config SENSORS_PCF8574
tristate "Philips PCF8574 and PCF8574A"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for Philips PCF8574 and
PCF8574A chips.
This driver can also be built as a module. If so, the module
will be called pcf8574.
config SENSORS_PCF8591
tristate "Philips PCF8591"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for Philips PCF8591 chips.
This driver can also be built as a module. If so, the module
will be called pcf8591.
endmenu
drivers/i2c/chips/Makefile
View file @ 62e88cfd
......@@ -19,6 +19,8 @@ obj-$(CONFIG_SENSORS_LM80) += lm80.o
obj-$(CONFIG_SENSORS_LM83) += lm83.o
obj-$(CONFIG_SENSORS_LM85) += lm85.o
obj-$(CONFIG_SENSORS_LM90) += lm90.o
obj-$(CONFIG_SENSORS_PCF8574) += pcf8574.o
obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o
obj-$(CONFIG_SENSORS_VIA686A) += via686a.o
obj-$(CONFIG_SENSORS_W83L785TS) += w83l785ts.o
......
drivers/i2c/chips/adm1021.c
View file @ 62e88cfd
......@@ -98,13 +98,10 @@ SENSORS_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1
they don't quite work like a thermostat the way the LM75 does. I.e.,
a lower temp than THYST actually triggers an alarm instead of
clearing it. Weird, ey? --Phil */
#define adm1021_INIT_TOS 60
#define adm1021_INIT_THYST 20
#define adm1021_INIT_REMOTE_TOS 60
#define adm1021_INIT_REMOTE_THYST 20
/* Each client has this additional data */
struct adm1021_data {
struct i2c_client client;
enum chips type;
struct semaphore update_lock;
......@@ -151,9 +148,6 @@ static struct i2c_driver adm1021_driver = {
.detach_client = adm1021_detach_client,
};
/* I choose here for semi-static allocation. Complete dynamic
allocation could also be used; the code needed for this would probably
take more memory than the datastructure takes now. */
static int adm1021_id = 0;
#define show(value) \
......@@ -235,16 +229,13 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
client structure, even though we cannot fill it completely yet.
But it allows us to access adm1021_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct adm1021_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
err = -ENOMEM;
goto error0;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct adm1021_data));
memset(data, 0, sizeof(struct adm1021_data));
data = (struct adm1021_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -253,8 +244,12 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
/* Now, we do the remaining detection. */
if (kind < 0) {
if ((adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0x03) != 0x00)
if ((adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0x03) != 0x00
|| (adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x3F) != 0x00
|| (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) & 0xF8) != 0x00) {
err = -ENODEV;
goto error1;
}
}
/* Determine the chip type. */
......@@ -272,11 +267,14 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
else if ((i == 0x4d) &&
(adm1021_read_value(new_client, ADM1021_REG_DEV_ID) == 0x01))
kind = max1617a;
/* LM84 Mfr ID in a different place */
else if (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) == 0x00)
kind = lm84;
else if (i == 0x54)
kind = mc1066;
/* LM84 Mfr ID in a different place, and it has more unused bits */
else if (adm1021_read_value(new_client, ADM1021_REG_CONV_RATE_R) == 0x00
&& (kind == 0 /* skip extra detection */
|| ((adm1021_read_value(new_client, ADM1021_REG_CONFIG_R) & 0x7F) == 0x00
&& (adm1021_read_value(new_client, ADM1021_REG_STATUS) & 0xAB) == 0x00)))
kind = lm84;
else
kind = max1617;
}
......@@ -309,10 +307,11 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto error3;
goto error1;
/* Initialize the ADM1021 chip */
adm1021_init_client(new_client);
if (kind != lm84)
adm1021_init_client(new_client);
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_temp1_max);
......@@ -327,26 +326,17 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
error3:
error1:
kfree(new_client);
kfree(data);
error0:
return err;
}
static void adm1021_init_client(struct i2c_client *client)
{
/* Initialize the adm1021 chip */
adm1021_write_value(client, ADM1021_REG_TOS_W,
adm1021_INIT_TOS);
adm1021_write_value(client, ADM1021_REG_THYST_W,
adm1021_INIT_THYST);
adm1021_write_value(client, ADM1021_REG_REMOTE_TOS_W,
adm1021_INIT_REMOTE_TOS);
adm1021_write_value(client, ADM1021_REG_REMOTE_THYST_W,
adm1021_INIT_REMOTE_THYST);
/* Enable ADC and disable suspend mode */
adm1021_write_value(client, ADM1021_REG_CONFIG_W, 0);
adm1021_write_value(client, ADM1021_REG_CONFIG_W,
adm1021_read_value(client, ADM1021_REG_CONFIG_R) & 0xBF);
/* Set Conversion rate to 1/sec (this can be tinkered with) */
adm1021_write_value(client, ADM1021_REG_CONV_RATE_W, 0x04);
}
......@@ -360,7 +350,7 @@ static int adm1021_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/asb100.c
View file @ 62e88cfd
......@@ -124,7 +124,7 @@ static const u16 asb100_reg_temp_hyst[] = {0, 0x3a, 0x153, 0x253, 0x19};
static u8 IN_TO_REG(unsigned val)
{
unsigned nval = SENSORS_LIMIT(val, ASB100_IN_MIN, ASB100_IN_MAX);
return nval / 16;
return (nval + 8) / 16;
}
static unsigned IN_FROM_REG(u8 reg)
......@@ -193,6 +193,7 @@ static u8 DIV_TO_REG(long val)
data is pointed to by client->data. The structure itself is
dynamically allocated, at the same time the client itself is allocated. */
struct asb100_data {
struct i2c_client client;
struct semaphore lock;
enum chips type;
......@@ -467,7 +468,7 @@ static ssize_t set_##reg(struct device *dev, const char *buf, \
data->reg[nr] = TEMP_TO_REG(val); \
break; \
} \
asb100_write_value(client, ASB100_REG_TEMP_##REG(nr), \
asb100_write_value(client, ASB100_REG_TEMP_##REG(nr+1), \
data->reg[nr]); \
return count; \
}
......@@ -722,17 +723,14 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
client structure, even though we cannot fill it completely yet.
But it allows us to access asb100_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct asb100_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct asb100_data), GFP_KERNEL))) {
pr_debug("asb100.o: detect failed, kmalloc failed!\n");
err = -ENOMEM;
goto ERROR0;
}
memset(data, 0, sizeof(struct asb100_data));
memset(new_client, 0,
sizeof(struct i2c_client) + sizeof(struct asb100_data));
data = (struct asb100_data *) (new_client + 1);
new_client = &data->client;
init_MUTEX(&data->lock);
i2c_set_clientdata(new_client, data);
new_client->addr = address;
......@@ -807,6 +805,11 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
/* Initialize the chip */
asb100_init_client(new_client);
/* A few vars need to be filled upon startup */
data->fan_min[0] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(0));
data->fan_min[1] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(1));
data->fan_min[2] = asb100_read_value(new_client, ASB100_REG_FAN_MIN(2));
/* Register sysfs hooks */
device_create_file_in(new_client, 0);
device_create_file_in(new_client, 1);
......@@ -837,7 +840,7 @@ static int asb100_detect(struct i2c_adapter *adapter, int address, int kind)
ERROR2:
i2c_detach_client(new_client);
ERROR1:
kfree(new_client);
kfree(data);
ERROR0:
return err;
}
......@@ -852,16 +855,11 @@ static int asb100_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
static u16 swap_bytes(u16 val)
{
return (val >> 8) | (val << 8);
}
/* The SMBus locks itself, usually, but nothing may access the chip between
bank switches. */
static int asb100_read_value(struct i2c_client *client, u16 reg)
......@@ -886,17 +884,17 @@ static int asb100_read_value(struct i2c_client *client, u16 reg)
/* convert from ISA to LM75 I2C addresses */
switch (reg & 0xff) {
case 0x50: /* TEMP */
res = swap_bytes(i2c_smbus_read_word_data (cl, 0));
res = swab16(i2c_smbus_read_word_data (cl, 0));
break;
case 0x52: /* CONFIG */
res = i2c_smbus_read_byte_data(cl, 1);
break;
case 0x53: /* HYST */
res = swap_bytes(i2c_smbus_read_word_data (cl, 2));
res = swab16(i2c_smbus_read_word_data (cl, 2));
break;
case 0x55: /* MAX */
default:
res = swap_bytes(i2c_smbus_read_word_data (cl, 3));
res = swab16(i2c_smbus_read_word_data (cl, 3));
break;
}
}
......@@ -934,10 +932,10 @@ static void asb100_write_value(struct i2c_client *client, u16 reg, u16 value)
i2c_smbus_write_byte_data(cl, 1, value & 0xff);
break;
case 0x53: /* HYST */
i2c_smbus_write_word_data(cl, 2, swap_bytes(value));
i2c_smbus_write_word_data(cl, 2, swab16(value));
break;
case 0x55: /* MAX */
i2c_smbus_write_word_data(cl, 3, swap_bytes(value));
i2c_smbus_write_word_data(cl, 3, swab16(value));
break;
}
}
......
drivers/i2c/chips/ds1621.c
View file @ 62e88cfd
......@@ -70,6 +70,7 @@ MODULE_PARM_DESC(polarity, "Output's polarity: 0 = active high, 1 = active low")
/* Each client has this additional data */
struct ds1621_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
......@@ -97,11 +98,6 @@ static struct i2c_driver ds1621_driver = {
static int ds1621_id = 0;
static u16 swap_bytes(u16 val)
{
return (val >> 8) | (val << 8);
}
/* All registers are word-sized, except for the configuration register.
DS1621 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
......@@ -110,7 +106,7 @@ static int ds1621_read_value(struct i2c_client *client, u8 reg)
if (reg == DS1621_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return swap_bytes(i2c_smbus_read_word_data(client, reg));
return swab16(i2c_smbus_read_word_data(client, reg));
}
/* All registers are word-sized, except for the configuration register.
......@@ -121,8 +117,7 @@ static int ds1621_write_value(struct i2c_client *client, u8 reg, u16 value)
if (reg == DS1621_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_data(client, reg,
swap_bytes(value));
return i2c_smbus_write_word_data(client, reg, swab16(value));
}
static void ds1621_init_client(struct i2c_client *client)
......@@ -202,16 +197,13 @@ int ds1621_detect(struct i2c_adapter *adapter, int address,
/* 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 ds1621_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct ds1621_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct ds1621_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0, sizeof(struct i2c_client) +
sizeof(struct ds1621_data));
memset(data, 0, sizeof(struct ds1621_data));
data = (struct ds1621_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -264,7 +256,7 @@ int ds1621_detect(struct i2c_adapter *adapter, int address,
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -274,12 +266,12 @@ static int ds1621_detach_client(struct i2c_client *client)
int err;
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev,
"ds1621.o: Client deregistration failed, client not detached.\n");
dev_err(&client->dev, "Client deregistration failed, "
"client not detached.\n");
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/eeprom.c
View file @ 62e88cfd
......@@ -63,6 +63,7 @@ enum eeprom_nature {
/* Each client has this additional data */
struct eeprom_data {
struct i2c_client client;
struct semaphore update_lock;
u8 valid; /* bitfield, bit!=0 if slice is valid */
unsigned long last_updated[8]; /* In jiffies, 8 slices */
......@@ -187,17 +188,14 @@ int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
/* 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 eeprom_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct eeprom_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct eeprom_data));
memset(data, 0, sizeof(struct eeprom_data));
data = (struct eeprom_data *) (new_client + 1);
memset(data, 0xff, EEPROM_SIZE);
new_client = &data->client;
memset(data->data, 0xff, EEPROM_SIZE);
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -244,7 +242,7 @@ int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_kfree:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -259,7 +257,7 @@ static int eeprom_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/fscher.c
View file @ 62e88cfd
......@@ -133,6 +133,7 @@ static struct i2c_driver fscher_driver = {
*/
struct fscher_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
......@@ -309,17 +310,15 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
/* 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 i2c_smbus_read_byte_data. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct fscher_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct fscher_data));
memset(data, 0, sizeof(struct fscher_data));
/* The Hermes-specific data is placed right after the common I2C
* client data. */
data = (struct fscher_data *) (new_client + 1);
/* The common I2C client data is placed right before the
* Hermes-specific data. */
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -371,7 +370,7 @@ static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -386,7 +385,7 @@ static int fscher_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......@@ -513,7 +512,7 @@ static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
default:
dev_err(&client->dev, "fan_div value %ld not "
"supported. Choose one of 2, 4 or 8!\n", v);
return -1;
return -EINVAL;
}
/* bits 2..7 reserved => mask with 0x03 */
......
drivers/i2c/chips/gl518sm.c
View file @ 62e88cfd
......@@ -118,6 +118,7 @@ static inline u8 FAN_TO_REG(long rpm, int div)
/* Each client has this additional data */
struct gl518_data {
struct i2c_client client;
enum chips type;
struct semaphore update_lock;
......@@ -354,16 +355,13 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
client structure, even though we cannot fill it completely yet.
But it allows us to access gl518_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct gl518_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct gl518_data));
memset(data, 0, sizeof(struct gl518_data));
data = (struct gl518_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
......@@ -445,7 +443,7 @@ static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
very code-efficient in this case. */
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -479,23 +477,18 @@ static int gl518_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
static inline u16 swap_bytes(u16 val)
{
return (val >> 8) | (val << 8);
}
/* Registers 0x07 to 0x0c are word-sized, others are byte-sized
GL518 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
static int gl518_read_value(struct i2c_client *client, u8 reg)
{
if ((reg >= 0x07) && (reg <= 0x0c))
return swap_bytes(i2c_smbus_read_word_data(client, reg));
return swab16(i2c_smbus_read_word_data(client, reg));
else
return i2c_smbus_read_byte_data(client, reg);
}
......@@ -506,8 +499,7 @@ static int gl518_read_value(struct i2c_client *client, u8 reg)
static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
{
if ((reg >= 0x07) && (reg <= 0x0c))
return i2c_smbus_write_word_data(client, reg,
swap_bytes(value));
return i2c_smbus_write_word_data(client, reg, swab16(value));
else
return i2c_smbus_write_byte_data(client, reg, value);
}
......
drivers/i2c/chips/it87.c
View file @ 62e88cfd
......@@ -134,6 +134,7 @@ static int DIV_TO_REG(int val)
dynamically allocated, at the same time when a new it87 client is
allocated. */
struct it87_data {
struct i2c_client client;
struct semaphore lock;
enum chips type;
......@@ -366,7 +367,7 @@ static ssize_t set_sensor(struct device *dev, const char *buf,
else if (val == 2)
data->sensor |= 8 << nr;
else if (val != 0)
return -1;
return -EINVAL;
it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor);
return count;
}
......@@ -508,7 +509,7 @@ static int it87_attach_adapter(struct i2c_adapter *adapter)
int it87_detect(struct i2c_adapter *adapter, int address, int kind)
{
int i;
struct i2c_client *new_client = NULL;
struct i2c_client *new_client;
struct it87_data *data;
int err = 0;
const char *name = "";
......@@ -532,12 +533,12 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
/* We need the timeouts for at least some IT87-like chips. But only
if we read 'undefined' registers. */
i = inb_p(address + 1);
if (inb_p(address + 2) != i)
goto ERROR1;
if (inb_p(address + 3) != i)
goto ERROR1;
if (inb_p(address + 7) != i)
if (inb_p(address + 2) != i
|| inb_p(address + 3) != i
|| inb_p(address + 7) != i) {
err = -ENODEV;
goto ERROR1;
}
#undef REALLY_SLOW_IO
/* Let's just hope nothing breaks here */
......@@ -545,7 +546,8 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
outb_p(~i & 0x7f, address + 5);
if ((inb_p(address + 5) & 0x7f) != (~i & 0x7f)) {
outb_p(i, address + 5);
return 0;
err = -ENODEV;
goto ERROR1;
}
}
}
......@@ -554,16 +556,13 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
client structure, even though we cannot fill it completely yet.
But it allows us to access it87_{read,write}_value. */
if (!(new_client = kmalloc((sizeof(struct i2c_client)) +
sizeof(struct it87_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct it87_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR1;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct it87_data));
memset(data, 0, sizeof(struct it87_data));
data = (struct it87_data *) (new_client + 1);
new_client = &data->client;
if (is_isa)
init_MUTEX(&data->lock);
i2c_set_clientdata(new_client, data);
......@@ -575,11 +574,12 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
/* Now, we do the remaining detection. */
if (kind < 0) {
if (it87_read_value(new_client, IT87_REG_CONFIG) & 0x80)
goto ERROR1;
if (!is_isa
&& (it87_read_value(new_client, IT87_REG_I2C_ADDR) !=
address)) goto ERROR1;
if ((it87_read_value(new_client, IT87_REG_CONFIG) & 0x80)
|| (!is_isa
&& it87_read_value(new_client, IT87_REG_I2C_ADDR) != address)) {
err = -ENODEV;
goto ERROR2;
}
}
/* Determine the chip type. */
......@@ -594,7 +594,8 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
"Ignoring 'force' parameter for unknown chip at "
"adapter %d, address 0x%02x\n",
i2c_adapter_id(adapter), address);
goto ERROR1;
err = -ENODEV;
goto ERROR2;
}
}
......@@ -613,7 +614,7 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR1;
goto ERROR2;
/* Initialize the IT87 chip */
it87_init_client(new_client, data);
......@@ -669,9 +670,9 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
ERROR2:
kfree(data);
ERROR1:
kfree(new_client);
if (is_isa)
release_region(address, IT87_EXTENT);
ERROR0:
......@@ -690,7 +691,7 @@ static int it87_detach_client(struct i2c_client *client)
if(i2c_is_isa_client(client))
release_region(client->addr, IT87_EXTENT);
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/lm75.c
View file @ 62e88cfd
......@@ -46,6 +46,7 @@ SENSORS_INSMOD_1(lm75);
/* Each client has this additional data */
struct lm75_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
......@@ -135,16 +136,13 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
/* 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 lm75_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct lm75_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm75_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct lm75_data));
memset(data, 0, sizeof(struct lm75_data));
data = (struct lm75_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -194,7 +192,7 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -202,15 +200,10 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
static int lm75_detach_client(struct i2c_client *client)
{
i2c_detach_client(client);
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
static u16 swap_bytes(u16 val)
{
return (val >> 8) | (val << 8);
}
/* All registers are word-sized, except for the configuration register.
LM75 uses a high-byte first convention, which is exactly opposite to
the usual practice. */
......@@ -219,7 +212,7 @@ static int lm75_read_value(struct i2c_client *client, u8 reg)
if (reg == LM75_REG_CONF)
return i2c_smbus_read_byte_data(client, reg);
else
return swap_bytes(i2c_smbus_read_word_data(client, reg));
return swab16(i2c_smbus_read_word_data(client, reg));
}
/* All registers are word-sized, except for the configuration register.
......@@ -230,8 +223,7 @@ static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value)
if (reg == LM75_REG_CONF)
return i2c_smbus_write_byte_data(client, reg, value);
else
return i2c_smbus_write_word_data(client, reg,
swap_bytes(value));
return i2c_smbus_write_word_data(client, reg, swab16(value));
}
static void lm75_init_client(struct i2c_client *client)
......
drivers/i2c/chips/lm78.c
View file @ 62e88cfd
......@@ -192,6 +192,7 @@ static inline u8 DIV_TO_REG(int val)
dynamically allocated, at the same time when a new lm78 client is
allocated. */
struct lm78_data {
struct i2c_client client;
struct semaphore lock;
enum chips type;
......@@ -552,16 +553,13 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
client structure, even though we cannot fill it completely yet.
But it allows us to access lm78_{read,write}_value. */
if (!(new_client = kmalloc((sizeof(struct i2c_client)) +
sizeof(struct lm78_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm78_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR1;
}
memset(new_client, 0, sizeof(struct i2c_client) +
sizeof(struct lm78_data));
memset(data, 0, sizeof(struct lm78_data));
data = (struct lm78_data *) (new_client + 1);
new_client = &data->client;
if (is_isa)
init_MUTEX(&data->lock);
i2c_set_clientdata(new_client, data);
......@@ -625,6 +623,12 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
/* Initialize the LM78 chip */
lm78_init_client(new_client);
/* A few vars need to be filled upon startup */
for (i = 0; i < 3; i++) {
data->fan_min[i] = lm78_read_value(new_client,
LM78_REG_FAN_MIN(i));
}
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_in0_input);
device_create_file(&new_client->dev, &dev_attr_in0_min);
......@@ -665,7 +669,7 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
ERROR2:
kfree(new_client);
kfree(data);
ERROR1:
if (is_isa)
release_region(address, LM78_EXTENT);
......@@ -688,7 +692,7 @@ static int lm78_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/lm80.c
View file @ 62e88cfd
......@@ -44,10 +44,9 @@ SENSORS_INSMOD_1(lm80);
#define LM80_REG_IN_MIN(nr) (0x2b + (nr) * 2)
#define LM80_REG_IN(nr) (0x20 + (nr))
#define LM80_REG_FAN1_MIN 0x3c
#define LM80_REG_FAN2_MIN 0x3d
#define LM80_REG_FAN1 0x28
#define LM80_REG_FAN2 0x29
#define LM80_REG_FAN_MIN(nr) (0x3b + (nr))
#define LM80_REG_TEMP 0x27
#define LM80_REG_TEMP_HOT_MAX 0x38
......@@ -69,7 +68,7 @@ SENSORS_INSMOD_1(lm80);
these macros are called: arguments may be evaluated more than once.
Fixing this is just not worth it. */
#define IN_TO_REG(val) (SENSORS_LIMIT((val)/10,0,255))
#define IN_TO_REG(val) (SENSORS_LIMIT(((val)+5)/10,0,255))
#define IN_FROM_REG(val) ((val)*10)
static inline unsigned char FAN_TO_REG(unsigned rpm, unsigned div)
......@@ -111,6 +110,7 @@ static inline long TEMP_FROM_REG(u16 temp)
*/
struct lm80_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
......@@ -250,8 +250,46 @@ static ssize_t set_fan_##suffix(struct device *dev, const char *buf, \
lm80_write_value(client, reg, data->value); \
return count; \
}
set_fan(min1, fan_min[0], LM80_REG_FAN1_MIN, fan_div[0]);
set_fan(min2, fan_min[1], LM80_REG_FAN2_MIN, fan_div[1]);
set_fan(min1, fan_min[0], LM80_REG_FAN_MIN(1), fan_div[0]);
set_fan(min2, fan_min[1], LM80_REG_FAN_MIN(2), fan_div[1]);
/* Note: we save and restore the fan minimum here, because its value is
determined in part by the fan divisor. This follows the principle of
least suprise; the user doesn't expect the fan minimum to change just
because the divisor changed. */
static ssize_t set_fan_div(struct device *dev, const char *buf,
size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm80_data *data = i2c_get_clientdata(client);
unsigned long min;
u8 reg;
/* Save fan_min */
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
reg = (lm80_read_value(client, LM80_REG_FANDIV) & ~(3 << (2 * (nr + 1))))
| (data->fan_div[nr] << (2 * (nr + 1)));
lm80_write_value(client, LM80_REG_FANDIV, reg);
/* Restore fan_min */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
return count;
}
#define set_fan_div(number) \
static ssize_t set_fan_div##number(struct device *dev, const char *buf, \
size_t count) \
{ \
return set_fan_div(dev, buf, count, number - 1); \
}
set_fan_div(1);
set_fan_div(2);
static ssize_t show_temp_input1(struct device *dev, char *buf)
{
......@@ -319,8 +357,8 @@ static DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min2,
set_fan_min2);
static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input1, NULL);
static DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input2, NULL);
static DEVICE_ATTR(fan1_div, S_IRUGO, show_fan_div1, NULL);
static DEVICE_ATTR(fan2_div, S_IRUGO, show_fan_div2, NULL);
static DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div1, set_fan_div1);
static DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div2, set_fan_div2);
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_hot_max,
set_temp_hot_max);
......@@ -357,15 +395,13 @@ int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
/* 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 lm80_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct lm80_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm80_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct lm80_data));
memset(data, 0, sizeof(struct lm80_data));
data = (struct lm80_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -401,6 +437,10 @@ int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
/* Initialize the LM80 chip */
lm80_init_client(new_client);
/* A few vars need to be filled upon startup */
data->fan_min[0] = lm80_read_value(new_client, LM80_REG_FAN_MIN(1));
data->fan_min[1] = lm80_read_value(new_client, LM80_REG_FAN_MIN(2));
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_in0_min);
device_create_file(&new_client->dev, &dev_attr_in1_min);
......@@ -439,7 +479,7 @@ int lm80_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
error_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -454,7 +494,7 @@ static int lm80_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......@@ -504,10 +544,10 @@ static struct lm80_data *lm80_update_device(struct device *dev)
}
data->fan[0] = lm80_read_value(client, LM80_REG_FAN1);
data->fan_min[0] =
lm80_read_value(client, LM80_REG_FAN1_MIN);
lm80_read_value(client, LM80_REG_FAN_MIN(1));
data->fan[1] = lm80_read_value(client, LM80_REG_FAN2);
data->fan_min[1] =
lm80_read_value(client, LM80_REG_FAN2_MIN);
lm80_read_value(client, LM80_REG_FAN_MIN(2));
data->temp =
(lm80_read_value(client, LM80_REG_TEMP) << 8) |
......
drivers/i2c/chips/lm83.c
View file @ 62e88cfd
......@@ -134,6 +134,7 @@ static struct i2c_driver lm83_driver = {
*/
struct lm83_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
......@@ -234,17 +235,15 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
goto exit;
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct lm83_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm83_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct lm83_data));
memset(data, 0, sizeof(struct lm83_data));
/* The LM83-specific data is placed right after the common I2C
* client data. */
data = (struct lm83_data *) (new_client + 1);
/* The common I2C client data is placed right after the
* LM83-specific data. */
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -329,7 +328,7 @@ static int lm83_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -344,7 +343,7 @@ static int lm83_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/lm85.c
View file @ 62e88cfd
......@@ -351,6 +351,7 @@ struct lm85_autofan {
};
struct lm85_data {
struct i2c_client client;
struct semaphore lock;
enum chips type;
......@@ -736,16 +737,13 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
client structure, even though we cannot fill it completely yet.
But it allows us to access lm85_{read,write}_value. */
if (!(new_client = kmalloc((sizeof(struct i2c_client)) +
sizeof(struct lm85_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
memset(data, 0, sizeof(struct lm85_data));
memset(new_client, 0, sizeof(struct i2c_client) +
sizeof(struct lm85_data));
data = (struct lm85_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -886,7 +884,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
/* Error out and cleanup code */
ERROR1:
kfree(new_client);
kfree(data);
ERROR0:
return err;
}
......@@ -894,7 +892,7 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
int lm85_detach_client(struct i2c_client *client)
{
i2c_detach_client(client);
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/lm90.c
View file @ 62e88cfd
......@@ -142,6 +142,7 @@ static struct i2c_driver lm90_driver = {
*/
struct lm90_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
......@@ -280,17 +281,15 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
goto exit;
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct lm90_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct lm90_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct lm90_data));
memset(data, 0, sizeof(struct lm90_data));
/* The LM90-specific data is placed right after the common I2C
* client data. */
data = (struct lm90_data *) (new_client + 1);
/* The common I2C client data is placed right before the
LM90-specific data. */
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -390,7 +389,7 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -420,7 +419,7 @@ static int lm90_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/pcf8574.c 0 → 100644
View file @ 62e88cfd
/*
pcf8574.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
Dan Eaton <dan.eaton@rocketlogix.com>
Ported to Linux 2.6 by Aurelien Jarno <aurel32@debian.org> with
the help of Jean Delvare <khali@linux-fr.org>
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.
*/
/* A few notes about the PCF8574:
* The PCF8574 is an 8-bit I/O expander for the I2C bus produced by
Philips Semiconductors. It is designed to provide a byte I2C
interface to up to 8 separate devices.
* The PCF8574 appears as a very simple SMBus device which can be
read from or written to with SMBUS byte read/write accesses.
--Dan
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { I2C_CLIENT_END };
static unsigned short normal_i2c_range[] = { 0x20, 0x27, 0x38, 0x3f, I2C_CLIENT_END };
static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
/* Insmod parameters */
SENSORS_INSMOD_2(pcf8574, pcf8574a);
/* Initial values */
#define PCF8574_INIT 255 /* All outputs on (input mode) */
/* Each client has this additional data */
struct pcf8574_data {
struct i2c_client client;
struct semaphore update_lock;
u8 read, write; /* Register values */
};
static int pcf8574_attach_adapter(struct i2c_adapter *adapter);
static int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind);
static int pcf8574_detach_client(struct i2c_client *client);
static void pcf8574_init_client(struct i2c_client *client);
static struct pcf8574_data *pcf8574_update_client(struct device *dev);
/* This is the driver that will be inserted */
static struct i2c_driver pcf8574_driver = {
.owner = THIS_MODULE,
.name = "pcf8574",
.id = I2C_DRIVERID_PCF8574,
.flags = I2C_DF_NOTIFY,
.attach_adapter = pcf8574_attach_adapter,
.detach_client = pcf8574_detach_client,
};
static int pcf8574_id = 0;
/* following are the sysfs callback functions */
static ssize_t show_read(struct device *dev, char *buf)
{
struct pcf8574_data *data = pcf8574_update_client(dev);
return sprintf(buf, "%u\n", data->read);
}
static DEVICE_ATTR(read, S_IRUGO, show_read, NULL);
static ssize_t show_write(struct device *dev, char *buf)
{
struct pcf8574_data *data = i2c_get_clientdata(to_i2c_client(dev));
return sprintf(buf, "%u\n", data->write);
}
static ssize_t set_write(struct device *dev, const char *buf,
size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct pcf8574_data *data = i2c_get_clientdata(client);
data->write = simple_strtoul(buf, NULL, 10);
i2c_smbus_write_byte(client, data->write);
return count;
}
static DEVICE_ATTR(write, S_IWUSR | S_IRUGO, show_write, set_write);
/*
* Real code
*/
static int pcf8574_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_detect(adapter, &addr_data, pcf8574_detect);
}
/* This function is called by i2c_detect */
int pcf8574_detect(struct i2c_adapter *adapter, int address, int kind)
{
struct i2c_client *new_client;
struct pcf8574_data *data;
int err = 0;
const char *client_name = "";
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
goto exit;
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet. */
if (!(data = kmalloc(sizeof(struct pcf8574_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(data, 0, sizeof(struct pcf8574_data));
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
new_client->driver = &pcf8574_driver;
new_client->flags = 0;
/* Now, we would do the remaining detection. But the PCF8574 is plainly
impossible to detect! Stupid chip. */
/* Determine the chip type */
if (kind <= 0) {
if (address >= 0x38 && address <= 0x3f)
kind = pcf8574a;
else
kind = pcf8574;
}
if (kind == pcf8574a)
client_name = "pcf8574a";
else
client_name = "pcf8574";
/* Fill in the remaining client fields and put it into the global list */
strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
new_client->id = pcf8574_id++;
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto exit_free;
/* Initialize the PCF8574 chip */
pcf8574_init_client(new_client);
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_read);
device_create_file(&new_client->dev, &dev_attr_write);
return 0;
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
exit_free:
kfree(data);
exit:
return err;
}
static int pcf8574_detach_client(struct i2c_client *client)
{
int err;
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev,
"Client deregistration failed, client not detached.\n");
return err;
}
kfree(i2c_get_clientdata(client));
return 0;
}
/* Called when we have found a new PCF8574. */
static void pcf8574_init_client(struct i2c_client *client)
{
struct pcf8574_data *data = i2c_get_clientdata(client);
data->write = PCF8574_INIT;
i2c_smbus_write_byte(client, data->write);
}
static struct pcf8574_data *pcf8574_update_client(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct pcf8574_data *data = i2c_get_clientdata(client);
down(&data->update_lock);
dev_dbg(&client->dev, "Starting pcf8574 update\n");
data->read = i2c_smbus_read_byte(client);
up(&data->update_lock);
return data;
}
static int __init pcf8574_init(void)
{
return i2c_add_driver(&pcf8574_driver);
}
static void __exit pcf8574_exit(void)
{
i2c_del_driver(&pcf8574_driver);
}
MODULE_AUTHOR
("Frodo Looijaard <frodol@dds.nl>, "
"Philip Edelbrock <phil@netroedge.com>, "
"Dan Eaton <dan.eaton@rocketlogix.com> "
"and Aurelien Jarno <aurelien@aurel32.net>");
MODULE_DESCRIPTION("PCF8574 driver");
MODULE_LICENSE("GPL");
module_init(pcf8574_init);
module_exit(pcf8574_exit);
drivers/i2c/chips/pcf8591.c 0 → 100644
View file @ 62e88cfd
/*
pcf8591.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (C) 2001-2004 Aurelien Jarno <aurelien@aurel32.net>
Ported to Linux 2.6 by Aurelien Jarno <aurelien@aurel32.net> with
the help of Jean Delvare <khali@linux-fr.org>
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-sensor.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { I2C_CLIENT_END };
static unsigned short normal_i2c_range[] = { 0x48, 0x4f, I2C_CLIENT_END };
static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
static unsigned int normal_isa_range[] = { I2C_CLIENT_ISA_END };
/* Insmod parameters */
SENSORS_INSMOD_1(pcf8591);
static int input_mode;
MODULE_PARM(input_mode, "i");
MODULE_PARM_DESC(input_mode,
"Analog input mode:\n"
" 0 = four single ended inputs\n"
" 1 = three differential inputs\n"
" 2 = single ended and differential mixed\n"
" 3 = two differential inputs\n");
/* The PCF8591 control byte
7 6 5 4 3 2 1 0
| 0 |AOEF| AIP | 0 |AINC| AICH | */
/* Analog Output Enable Flag (analog output active if 1) */
#define PCF8591_CONTROL_AOEF 0x40
/* Analog Input Programming
0x00 = four single ended inputs
0x10 = three differential inputs
0x20 = single ended and differential mixed
0x30 = two differential inputs */
#define PCF8591_CONTROL_AIP_MASK 0x30
/* Autoincrement Flag (switch on if 1) */
#define PCF8591_CONTROL_AINC 0x04
/* Channel selection
0x00 = channel 0
0x01 = channel 1
0x02 = channel 2
0x03 = channel 3 */
#define PCF8591_CONTROL_AICH_MASK 0x03
/* Initial values */
#define PCF8591_INIT_CONTROL ((input_mode << 4) | PCF8591_CONTROL_AOEF)
#define PCF8591_INIT_AOUT 0 /* DAC out = 0 */
/* Conversions */
#define REG_TO_SIGNED(reg) (((reg) & 0x80)?((reg) - 256):(reg))
struct pcf8591_data {
struct i2c_client client;
struct semaphore update_lock;
u8 control;
u8 aout;
};
static int pcf8591_attach_adapter(struct i2c_adapter *adapter);
static int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind);
static int pcf8591_detach_client(struct i2c_client *client);
static void pcf8591_init_client(struct i2c_client *client);
static int pcf8591_read_channel(struct device *dev, int channel);
/* This is the driver that will be inserted */
static struct i2c_driver pcf8591_driver = {
.owner = THIS_MODULE,
.name = "pcf8591",
.id = I2C_DRIVERID_PCF8591,
.flags = I2C_DF_NOTIFY,
.attach_adapter = pcf8591_attach_adapter,
.detach_client = pcf8591_detach_client,
};
static int pcf8591_id = 0;
/* following are the sysfs callback functions */
#define show_in_channel(channel) \
static ssize_t show_in##channel##_input(struct device *dev, char *buf) \
{ \
return sprintf(buf, "%d\n", pcf8591_read_channel(dev, channel));\
} \
static DEVICE_ATTR(in##channel##_input, S_IRUGO, \
show_in##channel##_input, NULL);
show_in_channel(0);
show_in_channel(1);
show_in_channel(2);
show_in_channel(3);
static ssize_t show_out0_ouput(struct device *dev, char *buf)
{
struct pcf8591_data *data = i2c_get_clientdata(to_i2c_client(dev));
return sprintf(buf, "%d\n", data->aout * 10);
}
static ssize_t set_out0_output(struct device *dev, const char *buf, size_t count)
{
unsigned int value;
struct i2c_client *client = to_i2c_client(dev);
struct pcf8591_data *data = i2c_get_clientdata(client);
if ((value = (simple_strtoul(buf, NULL, 10) + 5) / 10) <= 255) {
data->aout = value;
i2c_smbus_write_byte_data(client, data->control, data->aout);
return count;
}
return -EINVAL;
}
static DEVICE_ATTR(out0_output, S_IWUSR | S_IRUGO,
show_out0_ouput, set_out0_output);
static ssize_t show_out0_enable(struct device *dev, char *buf)
{
struct pcf8591_data *data = i2c_get_clientdata(to_i2c_client(dev));
return sprintf(buf, "%u\n", !(!(data->control & PCF8591_CONTROL_AOEF)));
}
static ssize_t set_out0_enable(struct device *dev, const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct pcf8591_data *data = i2c_get_clientdata(client);
if (simple_strtoul(buf, NULL, 10))
data->control |= PCF8591_CONTROL_AOEF;
else
data->control &= ~PCF8591_CONTROL_AOEF;
i2c_smbus_write_byte(client, data->control);
return count;
}
static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO,
show_out0_enable, set_out0_enable);
/*
* Real code
*/
static int pcf8591_attach_adapter(struct i2c_adapter *adapter)
{
return i2c_detect(adapter, &addr_data, pcf8591_detect);
}
/* This function is called by i2c_detect */
int pcf8591_detect(struct i2c_adapter *adapter, int address, int kind)
{
struct i2c_client *new_client;
struct pcf8591_data *data;
int err = 0;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE
| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
goto exit;
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet. */
if (!(data = kmalloc(sizeof(struct pcf8591_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(data, 0, sizeof(struct pcf8591_data));
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
new_client->driver = &pcf8591_driver;
new_client->flags = 0;
/* Now, we would do the remaining detection. But the PCF8591 is plainly
impossible to detect! Stupid chip. */
/* Determine the chip type - only one kind supported! */
if (kind <= 0)
kind = pcf8591;
/* Fill in the remaining client fields and put it into the global
list */
strlcpy(new_client->name, "pcf8591", I2C_NAME_SIZE);
new_client->id = pcf8591_id++;
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto exit_kfree;
/* Initialize the PCF8591 chip */
pcf8591_init_client(new_client);
/* Register sysfs hooks */
device_create_file(&new_client->dev, &dev_attr_out0_enable);
device_create_file(&new_client->dev, &dev_attr_out0_output);
device_create_file(&new_client->dev, &dev_attr_in0_input);
device_create_file(&new_client->dev, &dev_attr_in1_input);
/* Register input2 if not in "two differential inputs" mode */
if (input_mode != 3 )
device_create_file(&new_client->dev, &dev_attr_in2_input);
/* Register input3 only in "four single ended inputs" mode */
if (input_mode == 0)
device_create_file(&new_client->dev, &dev_attr_in3_input);
return 0;
/* OK, this is not exactly good programming practice, usually. But it is
very code-efficient in this case. */
exit_kfree:
kfree(data);
exit:
return err;
}
static int pcf8591_detach_client(struct i2c_client *client)
{
int err;
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev,
"Client deregistration failed, client not detached.\n");
return err;
}
kfree(i2c_get_clientdata(client));
return 0;
}
/* Called when we have found a new PCF8591. */
static void pcf8591_init_client(struct i2c_client *client)
{
struct pcf8591_data *data = i2c_get_clientdata(client);
data->control = PCF8591_INIT_CONTROL;
data->aout = PCF8591_INIT_AOUT;
i2c_smbus_write_byte_data(client, data->control, data->aout);
/* The first byte transmitted contains the conversion code of the
previous read cycle. FLUSH IT! */
i2c_smbus_read_byte(client);
}
static int pcf8591_read_channel(struct device *dev, int channel)
{
u8 value;
struct i2c_client *client = to_i2c_client(dev);
struct pcf8591_data *data = i2c_get_clientdata(client);
down(&data->update_lock);
if ((data->control & PCF8591_CONTROL_AICH_MASK) != channel) {
data->control = (data->control & ~PCF8591_CONTROL_AICH_MASK)
| channel;
i2c_smbus_write_byte(client, data->control);
/* The first byte transmitted contains the conversion code of
the previous read cycle. FLUSH IT! */
i2c_smbus_read_byte(client);
}
value = i2c_smbus_read_byte(client);
up(&data->update_lock);
if ((channel == 2 && input_mode == 2) ||
(channel != 3 && (input_mode == 1 || input_mode == 3)))
return (10 * REG_TO_SIGNED(value));
else
return (10 * value);
}
static int __init pcf8591_init(void)
{
if (input_mode < 0 || input_mode > 3) {
printk(KERN_WARNING "pcf8591: invalid input_mode (%d)\n",
input_mode);
input_mode = 0;
}
return i2c_add_driver(&pcf8591_driver);
}
static void __exit pcf8591_exit(void)
{
i2c_del_driver(&pcf8591_driver);
}
MODULE_AUTHOR("Aurelien Jarno <aurelien@aurel32.net>");
MODULE_DESCRIPTION("PCF8591 driver");
MODULE_LICENSE("GPL");
module_init(pcf8591_init);
module_exit(pcf8591_exit);
drivers/i2c/chips/via686a.c
View file @ 62e88cfd
......@@ -27,7 +27,6 @@
/*
Supports the Via VT82C686A, VT82C686B south bridges.
Reports all as a 686A.
See doc/chips/via686a for details.
Warning - only supports a single device.
*/
......@@ -330,48 +329,11 @@ static inline long TEMP_FROM_REG10(u16 val)
#define DIV_FROM_REG(val) (1 << (val))
#define DIV_TO_REG(val) ((val)==8?3:(val)==4?2:(val)==1?0:1)
/* Initial limits */
#define VIA686A_INIT_IN_0 200
#define VIA686A_INIT_IN_1 250
#define VIA686A_INIT_IN_2 330
#define VIA686A_INIT_IN_3 500
#define VIA686A_INIT_IN_4 1200
#define VIA686A_INIT_IN_PERCENTAGE 10
#define VIA686A_INIT_IN_MIN_0 (VIA686A_INIT_IN_0 - VIA686A_INIT_IN_0 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MAX_0 (VIA686A_INIT_IN_0 + VIA686A_INIT_IN_0 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MIN_1 (VIA686A_INIT_IN_1 - VIA686A_INIT_IN_1 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MAX_1 (VIA686A_INIT_IN_1 + VIA686A_INIT_IN_1 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MIN_2 (VIA686A_INIT_IN_2 - VIA686A_INIT_IN_2 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MAX_2 (VIA686A_INIT_IN_2 + VIA686A_INIT_IN_2 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MIN_3 (VIA686A_INIT_IN_3 - VIA686A_INIT_IN_3 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MAX_3 (VIA686A_INIT_IN_3 + VIA686A_INIT_IN_3 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MIN_4 (VIA686A_INIT_IN_4 - VIA686A_INIT_IN_4 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_IN_MAX_4 (VIA686A_INIT_IN_4 + VIA686A_INIT_IN_4 \
* VIA686A_INIT_IN_PERCENTAGE / 100)
#define VIA686A_INIT_FAN_MIN 3000
#define VIA686A_INIT_TEMP_OVER 600
#define VIA686A_INIT_TEMP_HYST 500
/* For the VIA686A, we need to keep some data in memory. That
data is pointed to by via686a_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new via686a client is
allocated. */
/* For the VIA686A, we need to keep some data in memory.
The structure is dynamically allocated, at the same time when a new
via686a client is allocated. */
struct via686a_data {
int sysctl_id;
struct i2c_client client;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
......@@ -688,16 +650,13 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
return -ENODEV;
}
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct via686a_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
memset(data, 0, sizeof(struct via686a_data));
memset(new_client,0x00, sizeof(struct i2c_client) +
sizeof(struct via686a_data));
data = (struct via686a_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -753,9 +712,9 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
ERROR3:
release_region(address, VIA686A_EXTENT);
kfree(new_client);
kfree(data);
ERROR0:
release_region(address, VIA686A_EXTENT);
return err;
}
......@@ -770,7 +729,7 @@ static int via686a_detach_client(struct i2c_client *client)
}
release_region(client->addr, VIA686A_EXTENT);
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......@@ -778,53 +737,13 @@ static int via686a_detach_client(struct i2c_client *client)
/* Called when we have found a new VIA686A. Set limits, etc. */
static void via686a_init_client(struct i2c_client *client)
{
int i;
/* Reset the device */
via686a_write_value(client, VIA686A_REG_CONFIG, 0x80);
/* Have to wait for reset to complete or else the following
initializations won't work reliably. The delay was arrived at
empirically, the datasheet doesn't tell you.
Waiting for the reset bit to clear doesn't work, it
clears in about 2-4 udelays and that isn't nearly enough. */
udelay(50);
via686a_write_value(client, VIA686A_REG_IN_MIN(0),
IN_TO_REG(VIA686A_INIT_IN_MIN_0, 0));
via686a_write_value(client, VIA686A_REG_IN_MAX(0),
IN_TO_REG(VIA686A_INIT_IN_MAX_0, 0));
via686a_write_value(client, VIA686A_REG_IN_MIN(1),
IN_TO_REG(VIA686A_INIT_IN_MIN_1, 1));
via686a_write_value(client, VIA686A_REG_IN_MAX(1),
IN_TO_REG(VIA686A_INIT_IN_MAX_1, 1));
via686a_write_value(client, VIA686A_REG_IN_MIN(2),
IN_TO_REG(VIA686A_INIT_IN_MIN_2, 2));
via686a_write_value(client, VIA686A_REG_IN_MAX(2),
IN_TO_REG(VIA686A_INIT_IN_MAX_2, 2));
via686a_write_value(client, VIA686A_REG_IN_MIN(3),
IN_TO_REG(VIA686A_INIT_IN_MIN_3, 3));
via686a_write_value(client, VIA686A_REG_IN_MAX(3),
IN_TO_REG(VIA686A_INIT_IN_MAX_3, 3));
via686a_write_value(client, VIA686A_REG_IN_MIN(4),
IN_TO_REG(VIA686A_INIT_IN_MIN_4, 4));
via686a_write_value(client, VIA686A_REG_IN_MAX(4),
IN_TO_REG(VIA686A_INIT_IN_MAX_4, 4));
via686a_write_value(client, VIA686A_REG_FAN_MIN(1),
FAN_TO_REG(VIA686A_INIT_FAN_MIN, 2));
via686a_write_value(client, VIA686A_REG_FAN_MIN(2),
FAN_TO_REG(VIA686A_INIT_FAN_MIN, 2));
for (i = 0; i <= 2; i++) {
via686a_write_value(client, VIA686A_REG_TEMP_OVER(i),
TEMP_TO_REG(VIA686A_INIT_TEMP_OVER));
via686a_write_value(client, VIA686A_REG_TEMP_HYST(i),
TEMP_TO_REG(VIA686A_INIT_TEMP_HYST));
}
u8 reg;
/* Start monitoring */
via686a_write_value(client, VIA686A_REG_CONFIG, 0x01);
reg = via686a_read_value(client, VIA686A_REG_CONFIG);
via686a_write_value(client, VIA686A_REG_CONFIG, (reg|0x01)&0x7F);
/* Cofigure temp interrupt mode for continuous-interrupt operation */
/* Configure temp interrupt mode for continuous-interrupt operation */
via686a_write_value(client, VIA686A_REG_TEMP_MODE,
via686a_read_value(client, VIA686A_REG_TEMP_MODE) &
!(VIA686A_TEMP_MODE_MASK | VIA686A_TEMP_MODE_CONTINUOUS));
......
drivers/i2c/chips/w83627hf.c
View file @ 62e88cfd
......@@ -277,6 +277,7 @@ static inline u8 DIV_TO_REG(long val)
data is pointed to by w83627hf_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new client is allocated. */
struct w83627hf_data {
struct i2c_client client;
struct semaphore lock;
enum chips type;
......@@ -659,34 +660,37 @@ show_fan_div_reg(struct device *dev, char *buf, int nr)
(long) DIV_FROM_REG(data->fan_div[nr - 1]));
}
/* Note: we save and restore the fan minimum here, because its value is
determined in part by the fan divisor. This follows the principle of
least suprise; the user doesn't expect the fan minimum to change just
because the divisor changed. */
static ssize_t
store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val, old, old2, old3 = 0;
unsigned long min;
u8 reg;
val = simple_strtoul(buf, NULL, 10);
old = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
old3 = w83627hf_read_value(client, W83781D_REG_VBAT);
data->fan_div[nr - 1] = DIV_TO_REG(val);
if (nr >= 3 && data->type != w83697hf) {
old2 = w83627hf_read_value(client, W83781D_REG_PIN);
old2 = (old2 & 0x3f) | ((data->fan_div[2] & 0x03) << 6);
w83627hf_write_value(client, W83781D_REG_PIN, old2);
old3 = (old3 & 0x7f) | ((data->fan_div[2] & 0x04) << 5);
}
if (nr >= 2) {
old = (old & 0x3f) | ((data->fan_div[1] & 0x03) << 6);
old3 = (old3 & 0xbf) | ((data->fan_div[1] & 0x04) << 4);
}
if (nr >= 1) {
old = (old & 0xcf) | ((data->fan_div[0] & 0x03) << 4);
w83627hf_write_value(client, W83781D_REG_VID_FANDIV, old);
old3 = (old3 & 0xdf) | ((data->fan_div[0] & 0x04) << 3);
w83627hf_write_value(client, W83781D_REG_VBAT, old3);
}
/* Save fan_min */
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
reg = (w83627hf_read_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
& (nr==0 ? 0xcf : 0x3f))
| ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
w83627hf_write_value(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
reg = (w83627hf_read_value(client, W83781D_REG_VBAT)
& ~(1 << (5 + nr)))
| ((data->fan_div[nr] & 0x04) << (3 + nr));
w83627hf_write_value(client, W83781D_REG_VBAT, reg);
/* Restore fan_min */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
return count;
}
......@@ -700,7 +704,7 @@ static ssize_t \
store_regs_fan_div_##offset (struct device *dev, \
const char *buf, size_t count) \
{ \
return store_fan_div_reg(dev, buf, count, offset); \
return store_fan_div_reg(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
show_regs_fan_div_##offset, store_regs_fan_div_##offset)
......@@ -938,17 +942,13 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
client structure, even though we cannot fill it completely yet.
But it allows us to access w83627hf_{read,write}_value. */
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct w83627hf_data),
GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR1;
}
memset(data, 0, sizeof(struct w83627hf_data));
memset(new_client, 0x00, sizeof (struct i2c_client) +
sizeof (struct w83627hf_data));
data = (struct w83627hf_data *) (new_client + 1);
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
init_MUTEX(&data->lock);
......@@ -982,6 +982,11 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
/* Initialize the chip */
w83627hf_init_client(new_client);
/* A few vars need to be filled upon startup */
data->fan_min[0] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(1));
data->fan_min[1] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(2));
data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
/* Register sysfs hooks */
device_create_file_in(new_client, 0);
if (kind != w83697hf)
......@@ -1034,7 +1039,7 @@ int w83627hf_detect(struct i2c_adapter *adapter, int address,
return 0;
ERROR2:
kfree(new_client);
kfree(data);
ERROR1:
release_region(address, WINB_EXTENT);
ERROR0:
......@@ -1052,7 +1057,7 @@ static int w83627hf_detach_client(struct i2c_client *client)
}
release_region(client->addr, WINB_EXTENT);
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
drivers/i2c/chips/w83781d.c
View file @ 62e88cfd
This diff is collapsed.
drivers/i2c/chips/w83l785ts.c
View file @ 62e88cfd
......@@ -105,7 +105,7 @@ static struct i2c_driver w83l785ts_driver = {
*/
struct w83l785ts_data {
struct i2c_client client;
struct semaphore update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
......@@ -164,18 +164,16 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
goto exit;
if (!(new_client = kmalloc(sizeof(struct i2c_client) +
sizeof(struct w83l785ts_data), GFP_KERNEL))) {
if (!(data = kmalloc(sizeof(struct w83l785ts_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
memset(new_client, 0x00, sizeof(struct i2c_client) +
sizeof(struct w83l785ts_data));
memset(data, 0, sizeof(struct w83l785ts_data));
/* The W83L785TS-specific data is placed right after the common I2C
* client data. */
data = (struct w83l785ts_data *) (new_client + 1);
/* The common I2C client data is placed right before the
* W83L785TS-specific data. */
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
......@@ -255,7 +253,7 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_free:
kfree(new_client);
kfree(data);
exit:
return err;
}
......@@ -270,7 +268,7 @@ static int w83l785ts_detach_client(struct i2c_client *client)
return err;
}
kfree(client);
kfree(i2c_get_clientdata(client));
return 0;
}
......
include/linux/pci_ids.h
View file @ 62e88cfd
......@@ -997,6 +997,7 @@
#define PCI_DEVICE_ID_AL_M1531 0x1531
#define PCI_DEVICE_ID_AL_M1533 0x1533
#define PCI_DEVICE_ID_AL_M1541 0x1541
#define PCI_DEVICE_ID_AL_M1563 0x1563
#define PCI_DEVICE_ID_AL_M1621 0x1621
#define PCI_DEVICE_ID_AL_M1631 0x1631
#define PCI_DEVICE_ID_AL_M1632 0x1632
......
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