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Commit 6c16fa73 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Merge kroah.com:/home/greg/linux/BK/bleed-2.5 

into kroah.com:/home/greg/linux/BK/i2c-2.6
parents 8912ad07 285dde44
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drivers/i2c/Kconfig
View file @ 6c16fa73
......@@ -22,10 +22,20 @@ config I2C
If you want I2C support, you should say Y here and also to the
specific driver for your bus adapter(s) below.
This I2C support is also available as a module. If you want to
compile it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-core.
This I2C support can also be built as a module. If so, the module
will be called i2c-core.
config I2C_CHARDEV
tristate "I2C device interface"
depends on I2C
help
Say Y here to use i2c-* device files, usually found in the /dev
directory on your system. They make it possible to have user-space
programs use the I2C bus. Information on how to do this is
contained in the file <file:Documentation/i2c/dev-interface>.
This support is also available as a module. If so, the module
will be called i2c-dev.
config I2C_ALGOBIT
tristate "I2C bit-banging interfaces"
......@@ -35,105 +45,8 @@ config I2C_ALGOBIT
adapters. Say Y if you own an I2C adapter belonging to this class
and then say Y to the specific driver for you adapter below.
This support is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-algo-bit.
config I2C_PROSAVAGE
tristate "S3/VIA (Pro)Savage"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8
graphics processors.
chipsets supported:
S3/VIA KM266/VT8375 aka ProSavage8
S3/VIA KM133/VT8365 aka Savage4
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
The module will be called i2c-prosavage.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config I2C_PHILIPSPAR
tristate "Philips style parallel port adapter"
depends on I2C_ALGOBIT && PARPORT
---help---
This supports parallel-port I2C adapters made by Philips. Say Y if
you own such an adapter.
This driver is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-philips-par.
Note that if you want support for different parallel port devices,
life will be much easier if you compile them all as modules.
config I2C_ELV
tristate "ELV adapter"
depends on I2C_ALGOBIT && ISA
help
This supports parallel-port I2C adapters called ELV. Say Y if you
own such an adapter.
This driver is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-elv.
config I2C_VELLEMAN
tristate "Velleman K9000 adapter"
depends on I2C_ALGOBIT && ISA
help
This supports the Velleman K9000 parallel-port I2C adapter. Say Y
if you own such an adapter.
This driver is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-velleman.
config SCx200_I2C
tristate "NatSemi SCx200 I2C using GPIO pins"
depends on SCx200 && I2C_ALGOBIT
help
Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
If you don't know what to do here, say N.
If compiled as a module, it will be called scx200_i2c.
config SCx200_I2C_SCL
int "GPIO pin used for SCL"
depends on SCx200_I2C
default "12"
help
Enter the GPIO pin number used for the SCL signal. This value can
also be specified with a module parameter.
config SCx200_I2C_SDA
int "GPIO pin used for SDA"
depends on SCx200_I2C
default "13"
help
Enter the GPIO pin number used for the SSA signal. This value can
also be specified with a module parameter.
config SCx200_ACB
tristate "NatSemi SCx200 ACCESS.bus"
depends on I2C_ALGOBIT!=n && I2C
help
Enable the use of the ACCESS.bus controllers of a SCx200 processor.
If you don't know what to do here, say N.
If compiled as a module, it will be called scx200_acb.
This support is also available as a module. If so, the module
will be called i2c-algo-bit.
config I2C_ALGOPCF
tristate "I2C PCF 8584 interfaces"
......@@ -143,35 +56,10 @@ config I2C_ALGOPCF
Say Y if you own an I2C adapter belonging to this class and then say
Y to the specific driver for you adapter below.
This support is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-algo-pcf.
config I2C_ELEKTOR
tristate "Elektor ISA card"
depends on I2C_ALGOPCF && BROKEN_ON_SMP
help
This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
such an adapter.
This driver is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-elektor.
This support is also available as a module. If so, the module
will be called i2c-algo-pcf.
config I2C_KEYWEST
tristate "Powermac Keywest I2C interface"
depends on I2C && PPC_PMAC
help
This supports the use of the I2C interface in the combo-I/O
chip on recent Apple machines. Say Y if you have such a machine.
This driver is also available as a module. If you want to compile
it as a module, say M here and read Documentation/modules.txt.
The module will be called i2c-keywest.
config ITE_I2C_ALGO
config I2C_ALGOITE
tristate "ITE I2C Algorithm"
depends on MIPS_ITE8172 && I2C
help
......@@ -179,56 +67,13 @@ config ITE_I2C_ALGO
systems. Say Y if you have one of these. You should also say Y for
the ITE I2C peripheral driver support below.
This support is also available as a module. If you want to compile
it as a module, say M here and read Documentation/modules.txt.
The module will be called i2c-algo-ite.
config ITE_I2C_ADAP
tristate "ITE I2C Adapter"
depends on ITE_I2C_ALGO
help
This supports the ITE8172 I2C peripheral found on some MIPS
systems. Say Y if you have one of these. You should also say Y for
the ITE I2C driver algorithm support above.
This support is also available as a module. If you want to compile
it as a module, say M here and read Documentation/modules.txt.
The module will be called i2c-adap-ite.
This support is also available as a module. If so, the module
will be called i2c-algo-ite.
config I2C_ALGO8XX
tristate "MPC8xx CPM I2C interface"
depends on 8xx && I2C
config I2C_RPXLITE
tristate "Embedded Planet RPX Lite/Classic suppoort"
depends on (RPXLITE || RPXCLASSIC) && I2C_ALGO8XX
config I2C_IBM_OCP_ALGO
tristate "IBM on-chip I2C Algorithm"
depends on IBM_OCP && I2C
config I2C_IBM_OCP_ADAP
tristate "IBM on-chip I2C Adapter"
depends on I2C_IBM_OCP_ALGO
config I2C_IOP3XX
tristate "Intel XScale IOP3xx on-chip I2C interface"
depends on ARCH_IOP3XX && I2C
config I2C_CHARDEV
tristate "I2C device interface"
depends on I2C
help
Say Y here to use i2c-* device files, usually found in the /dev
directory on your system. They make it possible to have user-space
programs use the I2C bus. Information on how to do this is
contained in the file <file:Documentation/i2c/dev-interface>.
This code is also available as a module. If you want to compile
it as a module, say M here and read
<file:Documentation/modules.txt>.
The module will be called i2c-dev.
source drivers/i2c/busses/Kconfig
source drivers/i2c/chips/Kconfig
......
drivers/i2c/Makefile
View file @ 6c16fa73
#
# Makefile for the kernel i2c bus driver.
# Makefile for the i2c core.
#
obj-$(CONFIG_I2C) += i2c-core.o
obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o
obj-$(CONFIG_I2C_SENSOR) += i2c-sensor.o
obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o
obj-$(CONFIG_I2C_PROSAVAGE) += i2c-prosavage.o
obj-$(CONFIG_I2C_PHILIPSPAR) += i2c-philips-par.o
obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_VELLEMAN) += i2c-velleman.o
obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_KEYWEST) += i2c-keywest.o
obj-$(CONFIG_ITE_I2C_ALGO) += i2c-algo-ite.o
obj-$(CONFIG_ITE_I2C_ADAP) += i2c-adap-ite.o
obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
obj-$(CONFIG_I2C_SENSOR) += i2c-sensor.o
obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o
obj-$(CONFIG_I2C_ALGOITE) += i2c-algo-ite.o
obj-y += busses/ chips/
drivers/i2c/busses/Kconfig
View file @ 6c16fa73
......@@ -2,10 +2,10 @@
# Sensor device configuration
#
menu "I2C Hardware Sensors Mainboard support"
menu "I2C Hardware Bus support"
config I2C_ALI1535
tristate " ALI 1535"
tristate "ALI 1535"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the SMB
......@@ -13,63 +13,61 @@ config I2C_ALI1535
controller is part of the 7101 device, which is an ACPI-compliant
Power Management Unit (PMU).
This can also be built as a module. If so, the module will be
called i2c-ali1535.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called i2c-ali1535.
config I2C_ALI15X3
tristate " ALI 15x3"
tristate "ALI 15x3"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
Acer Labs Inc. (ALI) M1514 and M1543 motherboard I2C interfaces.
This can also be built as a module. If so, the module will be
called i2c-ali15x3.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called i2c-ali15x3.
config I2C_AMD756
tristate " AMD 756/766"
tristate "AMD 756/766"
depends on I2C && EXPERIMENTAL
help
If you say yes to this option, support will be included for the AMD
756/766/768 mainboard I2C interfaces.
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
The module will be called i2c-amd756.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called i2c-amd756.
config I2C_AMD8111
tristate " AMD 8111"
tristate "AMD 8111"
depends on I2C && EXPERIMENTAL
help
If you say yes to this option, support will be included for the AMD
8111 mainboard I2C interfaces.
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-amd8111.
The module will be called i2c-amd8111.
config I2C_ELEKTOR
tristate "Elektor ISA card"
depends on I2C_ALGOPCF && BROKEN_ON_SMP
help
This supports the PCF8584 ISA bus I2C adapter. Say Y if you own
such an adapter.
This support is also available as a module. If so, the module
will be called i2c-elektor.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config I2C_ELV
tristate "ELV adapter"
depends on I2C_ALGOBIT && ISA
help
This supports parallel-port I2C adapters called ELV. Say Y if you
own such an adapter.
This support is also available as a module. If so, the module
will be called i2c-elv.
config I2C_I801
tristate " Intel 801"
tristate "Intel 801"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the Intel
......@@ -81,53 +79,84 @@ config I2C_I801
82801CA/CAM
82801DB
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-i801.
config I2C_I810
tristate "Intel 810/815"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the Intel
810/815 family of mainboard I2C interfaces. Specifically, the
following versions of the chipset is supported:
i810AA
i810AB
i810E
i815
This driver can also be built as a module. If so, the module
will be called i2c-i810.
The module will be called i2c-i801.
config I2C_IBM_IIC
tristate "IBM IIC I2C"
depends on IBM_OCP && I2C
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config I2C_IOP3XX
tristate "Intel XScale IOP3xx on-chip I2C interface"
depends on ARCH_IOP3XX && I2C
config I2C_ISA
tristate " ISA Bus support"
tristate "ISA Bus support"
depends on I2C && ISA && EXPERIMENTAL
help
If you say yes to this option, support will be included for i2c
interfaces that are on the ISA bus.
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-isa.
config I2C_ITE
tristate "ITE I2C Adapter"
depends on I2C_ALGOITE
help
This supports the ITE8172 I2C peripheral found on some MIPS
systems. Say Y if you have one of these. You should also say Y for
the ITE I2C driver algorithm support above.
This support is also available as a module. If so, the module
will be called i2c-ite.
The module will be called i2c-isa.
config I2C_KEYWEST
tristate "Powermac Keywest I2C interface"
depends on I2C && PPC_PMAC
help
This supports the use of the I2C interface in the combo-I/O
chip on recent Apple machines. Say Y if you have such a machine.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This support is also available as a module. If so, the module
will be called i2c-keywest.
config I2C_NFORCE2
tristate " Nvidia Nforce2"
tristate "Nvidia Nforce2"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the Nvidia
Nforce2 family of mainboard I2C interfaces.
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
The module will be called i2c-nforce2.
This driver can also be built as a module. If so, the module
will be called i2c-nforce2.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config I2C_PHILIPSPAR
tristate "Philips style parallel port adapter"
depends on I2C_ALGOBIT && PARPORT
help
This supports parallel-port I2C adapters made by Philips.
This support is also available as a module. If so, the module
will be called i2c-philips-par.
config I2C_PIIX4
tristate " Intel PIIX4"
tristate "Intel PIIX4"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the Intel
......@@ -139,19 +168,97 @@ config I2C_PIIX4
Serverworks CSB5
SMSC Victory66
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-piix4.
config I2C_PROSAVAGE
tristate "S3/VIA (Pro)Savage"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
I2C bus and DDC bus of the S3VIA embedded Savage4 and ProSavage8
graphics processors.
chipsets supported:
S3/VIA KM266/VT8375 aka ProSavage8
S3/VIA KM133/VT8365 aka Savage4
This support is also available as a module. If so, the module
will be called i2c-prosavage.
config I2C_RPXLITE
tristate "Embedded Planet RPX Lite/Classic suppoort"
depends on (RPXLITE || RPXCLASSIC) && I2C_ALGO8XX
config I2C_SAVAGE4
tristate "S3 Savage 4"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
S3 Savage 4 I2C interface.
This driver can also be built as a module. If so, the module
will be called i2c-savage4.
config SCx200_I2C
tristate "NatSemi SCx200 I2C using GPIO pins"
depends on SCx200 && I2C_ALGOBIT
help
Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
If you don't know what to do here, say N.
This support is also available as a module. If so, the module
will be called scx200_i2c.
config SCx200_I2C_SCL
int "GPIO pin used for SCL"
depends on SCx200_I2C
default "12"
help
Enter the GPIO pin number used for the SCL signal. This value can
also be specified with a module parameter.
config SCx200_I2C_SDA
int "GPIO pin used for SDA"
depends on SCx200_I2C
default "13"
help
Enter the GPIO pin number used for the SSA signal. This value can
also be specified with a module parameter.
config SCx200_ACB
tristate "NatSemi SCx200 ACCESS.bus"
depends on I2C_ALGOBIT!=n && I2C
help
Enable the use of the ACCESS.bus controllers of a SCx200 processor.
If you don't know what to do here, say N.
This support is also available as a module. If so, the module
will be called scx200_acb.
config I2C_SIS5595
tristate "SiS 5595"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
SiS5595 SMBus (a subset of I2C) interface.
The module will be called i2c-piix4.
This driver can also be built as a module. If so, the module
will be called i2c-sis5595.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config I2C_SIS630
tristate "SiS 630"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
SiS630 SMBus (a subset of I2C) interface.
This driver can also be built as a module. If so, the module
will be called i2c-sis630.
config I2C_SIS96X
tristate " SiS 96x"
tristate "SiS 96x"
depends on I2C && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the SiS
......@@ -164,19 +271,32 @@ config I2C_SIS96X
650/961
735
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-sis96x.
The module will be called i2c-sis96x.
config I2C_VELLEMAN
tristate "Velleman K9000 adapter"
depends on I2C_ALGOBIT && ISA
help
This supports the Velleman K9000 parallel-port I2C adapter. Say Y
if you own such an adapter.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This support is also available as a module. If so, the module
will be called i2c-velleman.
config I2C_VIA
tristate "VIA 82C58B"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
If you say yes to this option, support will be included for the VIA
82C586B I2C interface
This driver can also be built as a module. If so, the module
will be called i2c-via.
config I2C_VIAPRO
tristate " VIA 82C596/82C686/823x"
tristate "VIA 82C596/82C686/823x"
depends on I2C && PCI && EXPERIMENTAL
help
......@@ -190,15 +310,18 @@ config I2C_VIAPRO
8233A
8235
This can also be built as a module which can be inserted and removed
while the kernel is running. If you want to compile it as a module,
say M here and read <file:Documentation/modules.txt>.
This driver can also be built as a module. If so, the module
will be called i2c-viapro.
config I2C_VOODOO3
tristate "Voodoo 3"
depends on I2C_ALGOBIT && PCI && EXPERIMENTAL
help
The module will be called i2c-viapro.
If you say yes to this option, support will be included for the
Voodoo 3 I2C interface.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called i2c-voodoo3.
endmenu
drivers/i2c/busses/Makefile
View file @ 6c16fa73
#
# Makefile for the kernel hardware sensors bus drivers.
# Makefile for the i2c bus drivers.
#
obj-$(CONFIG_I2C_ALI1535) += i2c-ali1535.o
obj-$(CONFIG_I2C_ALI15X3) += i2c-ali15x3.o
obj-$(CONFIG_I2C_AMD756) += i2c-amd756.o
obj-$(CONFIG_I2C_AMD8111) += i2c-amd8111.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_I801) += i2c-i801.o
obj-$(CONFIG_I2C_I810) += i2c-i810.o
obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o
obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o
obj-$(CONFIG_I2C_ISA) += i2c-isa.o
obj-$(CONFIG_I2C_ITE) += i2c-ite.o
obj-$(CONFIG_I2C_KEYWEST) += i2c-keywest.o
obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o
obj-$(CONFIG_I2C_PHILIPSPAR) += i2c-philips-par.o
obj-$(CONFIG_I2C_PIIX4) += i2c-piix4.o
obj-$(CONFIG_I2C_PROSAVAGE) += i2c-prosavage.o
obj-$(CONFIG_I2C_RPXLITE) += i2c-rpx.o
obj-$(CONFIG_I2C_SAVAGE4) += i2c-savage4.o
obj-$(CONFIG_I2C_SIS5595) += i2c-sis5595.o
obj-$(CONFIG_I2C_SIS630) += i2c-sis630.o
obj-$(CONFIG_I2C_SIS96X) += i2c-sis96x.o
obj-$(CONFIG_I2C_VELLEMAN) += i2c-velleman.o
obj-$(CONFIG_I2C_VIA) += i2c-via.o
obj-$(CONFIG_I2C_VIAPRO) += i2c-viapro.o
obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o
obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
drivers/i2c/busses/i2c-ali1535.c
View file @ 6c16fa73
......@@ -481,7 +481,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter ali1535_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_ALI1535,
.algo = &smbus_algorithm,
.name = "unset",
};
......@@ -507,7 +506,7 @@ static int __devinit ali1535_probe(struct pci_dev *dev, const struct pci_device_
/* set up the driverfs linkage to our parent device */
ali1535_adapter.dev.parent = &dev->dev;
snprintf(ali1535_adapter.name, DEVICE_NAME_SIZE,
snprintf(ali1535_adapter.name, I2C_NAME_SIZE,
"SMBus ALI1535 adapter at %04x", ali1535_smba);
return i2c_add_adapter(&ali1535_adapter);
}
......
drivers/i2c/busses/i2c-ali15x3.c
View file @ 6c16fa73
......@@ -471,7 +471,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter ali15x3_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_ALI15X3,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -498,7 +497,7 @@ static int __devinit ali15x3_probe(struct pci_dev *dev, const struct pci_device_
/* set up the driverfs linkage to our parent device */
ali15x3_adapter.dev.parent = &dev->dev;
snprintf(ali15x3_adapter.name, DEVICE_NAME_SIZE,
snprintf(ali15x3_adapter.name, I2C_NAME_SIZE,
"SMBus ALI15X3 adapter at %04x", ali15x3_smba);
return i2c_add_adapter(&ali15x3_adapter);
}
......
drivers/i2c/busses/i2c-amd756.c
View file @ 6c16fa73
......@@ -37,7 +37,6 @@
/* #define DEBUG 1 */
#include <linux/version.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/kernel.h>
......@@ -304,7 +303,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter amd756_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_AMD756,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -369,7 +367,7 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
/* set up the driverfs linkage to our parent device */
amd756_adapter.dev.parent = &pdev->dev;
snprintf(amd756_adapter.name, DEVICE_NAME_SIZE,
snprintf(amd756_adapter.name, I2C_NAME_SIZE,
"SMBus AMD75x adapter at %04x", amd756_ioport);
error = i2c_add_adapter(&amd756_adapter);
......
drivers/i2c/busses/i2c-amd8111.c
View file @ 6c16fa73
......@@ -356,9 +356,8 @@ static int __devinit amd8111_probe(struct pci_dev *dev, const struct pci_device_
goto out_kfree;
smbus->adapter.owner = THIS_MODULE;
snprintf(smbus->adapter.name, DEVICE_NAME_SIZE,
snprintf(smbus->adapter.name, I2C_NAME_SIZE,
"SMBus2 AMD8111 adapter at %04x", smbus->base);
smbus->adapter.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_AMD8111;
smbus->adapter.class = I2C_ADAP_CLASS_SMBUS;
smbus->adapter.algo = &smbus_algorithm;
smbus->adapter.algo_data = smbus;
......
drivers/i2c/i2c-elektor.c → drivers/i2c/busses/i2c-elektor.c
View file @ 6c16fa73
......@@ -30,7 +30,6 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
......@@ -42,7 +41,7 @@
#include <asm/io.h>
#include <asm/irq.h>
#include "i2c-pcf8584.h"
#include "../i2c-pcf8584.h"
#define DEFAULT_BASE 0x330
......
drivers/i2c/i2c-elv.c → drivers/i2c/busses/i2c-elv.c
View file @ 6c16fa73
......@@ -21,8 +21,6 @@
/* With some changes from Kysti Mlkki <kmalkki@cc.hut.fi> and even
Frodo Looijaard <frodol@dds.nl> */
/* $Id: i2c-elv.c,v 1.27 2003/01/21 08:08:16 kmalkki Exp $ */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
......@@ -36,7 +34,7 @@
#define DEFAULT_BASE 0x378
static int base=0;
static unsigned char PortData = 0;
static unsigned char port_data = 0;
/* ----- global defines ----------------------------------------------- */
#define DEB(x) /* should be reasonable open, close &c. */
......@@ -57,21 +55,21 @@ static unsigned char PortData = 0;
static void bit_elv_setscl(void *data, int state)
{
if (state) {
PortData &= 0xfe;
port_data &= 0xfe;
} else {
PortData |=1;
port_data |=1;
}
outb(PortData, DATA);
outb(port_data, DATA);
}
static void bit_elv_setsda(void *data, int state)
{
if (state) {
PortData &=0xfd;
port_data &=0xfd;
} else {
PortData |=2;
port_data |=2;
}
outb(PortData, DATA);
outb(port_data, DATA);
}
static int bit_elv_getscl(void *data)
......@@ -103,7 +101,7 @@ static int bit_elv_init(void)
goto fail;
}
PortData = 0;
port_data = 0;
bit_elv_setsda((void*)base,1);
bit_elv_setscl((void*)base,1);
return 0;
......@@ -129,14 +127,13 @@ static struct i2c_algo_bit_data bit_elv_data = {
static struct i2c_adapter bit_elv_ops = {
.owner = THIS_MODULE,
.id = I2C_HW_B_ELV,
.algo_data = &bit_elv_data,
.name = "ELV Parallel port adaptor",
};
static int __init i2c_bitelv_init(void)
{
printk(KERN_INFO "i2c-elv.o: i2c ELV parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
printk(KERN_INFO "i2c ELV parallel port adapter driver\n");
if (base==0) {
/* probe some values */
base=DEFAULT_BASE;
......
drivers/i2c/busses/i2c-i801.c
View file @ 6c16fa73
......@@ -540,7 +540,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter i801_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_I801,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -598,7 +597,7 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
/* set up the driverfs linkage to our parent device */
i801_adapter.dev.parent = &dev->dev;
snprintf(i801_adapter.name, DEVICE_NAME_SIZE,
snprintf(i801_adapter.name, I2C_NAME_SIZE,
"SMBus I801 adapter at %04x", i801_smba);
return i2c_add_adapter(&i801_adapter);
}
......
drivers/i2c/busses/i2c-i810.c 0 → 100644
View file @ 6c16fa73
/*
i2c-i810.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998, 1999, 2000 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
Ralph Metzler <rjkm@thp.uni-koeln.de>, and
Mark D. Studebaker <mdsxyz123@yahoo.com>
Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
Simon Vogl
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.
*/
/*
This interfaces to the I810/I815 to provide access to
the DDC Bus and the I2C Bus.
SUPPORTED DEVICES PCI ID
i810AA 7121
i810AB 7123
i810E 7125
i815 1132
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
/* GPIO register locations */
#define I810_IOCONTROL_OFFSET 0x5000
#define I810_HVSYNC 0x00 /* not used */
#define I810_GPIOA 0x10
#define I810_GPIOB 0x14
/* bit locations in the registers */
#define SCL_DIR_MASK 0x0001
#define SCL_DIR 0x0002
#define SCL_VAL_MASK 0x0004
#define SCL_VAL_OUT 0x0008
#define SCL_VAL_IN 0x0010
#define SDA_DIR_MASK 0x0100
#define SDA_DIR 0x0200
#define SDA_VAL_MASK 0x0400
#define SDA_VAL_OUT 0x0800
#define SDA_VAL_IN 0x1000
/* initialization states */
#define INIT1 0x1
#define INIT2 0x2
#define INIT3 0x4
/* delays */
#define CYCLE_DELAY 10
#define TIMEOUT (HZ / 2)
static void *ioaddr;
/* The i810 GPIO registers have individual masks for each bit
so we never have to read before writing. Nice. */
static void bit_i810i2c_setscl(void *data, int val)
{
writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
ioaddr + I810_GPIOB);
readl(ioaddr + I810_GPIOB); /* flush posted write */
}
static void bit_i810i2c_setsda(void *data, int val)
{
writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
ioaddr + I810_GPIOB);
readl(ioaddr + I810_GPIOB); /* flush posted write */
}
/* The GPIO pins are open drain, so the pins could always remain outputs.
However, some chip versions don't latch the inputs unless they
are set as inputs.
We rely on the i2c-algo-bit routines to set the pins high before
reading the input from other chips. Following guidance in the 815
prog. ref. guide, we do a "dummy write" of 0 to the register before
reading which forces the input value to be latched. We presume this
applies to the 810 as well; shouldn't hurt anyway. This is necessary to get
i2c_algo_bit bit_test=1 to pass. */
static int bit_i810i2c_getscl(void *data)
{
writel(SCL_DIR_MASK, ioaddr + I810_GPIOB);
writel(0, ioaddr + I810_GPIOB);
return (0 != (readl(ioaddr + I810_GPIOB) & SCL_VAL_IN));
}
static int bit_i810i2c_getsda(void *data)
{
writel(SDA_DIR_MASK, ioaddr + I810_GPIOB);
writel(0, ioaddr + I810_GPIOB);
return (0 != (readl(ioaddr + I810_GPIOB) & SDA_VAL_IN));
}
static void bit_i810ddc_setscl(void *data, int val)
{
writel((val ? SCL_VAL_OUT : 0) | SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK,
ioaddr + I810_GPIOA);
readl(ioaddr + I810_GPIOA); /* flush posted write */
}
static void bit_i810ddc_setsda(void *data, int val)
{
writel((val ? SDA_VAL_OUT : 0) | SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK,
ioaddr + I810_GPIOA);
readl(ioaddr + I810_GPIOA); /* flush posted write */
}
static int bit_i810ddc_getscl(void *data)
{
writel(SCL_DIR_MASK, ioaddr + I810_GPIOA);
writel(0, ioaddr + I810_GPIOA);
return (0 != (readl(ioaddr + I810_GPIOA) & SCL_VAL_IN));
}
static int bit_i810ddc_getsda(void *data)
{
writel(SDA_DIR_MASK, ioaddr + I810_GPIOA);
writel(0, ioaddr + I810_GPIOA);
return (0 != (readl(ioaddr + I810_GPIOA) & SDA_VAL_IN));
}
static int config_i810(struct pci_dev *dev)
{
unsigned long cadr;
/* map I810 memory */
cadr = dev->resource[1].start;
cadr += I810_IOCONTROL_OFFSET;
cadr &= PCI_BASE_ADDRESS_MEM_MASK;
ioaddr = ioremap_nocache(cadr, 0x1000);
if (ioaddr) {
bit_i810i2c_setscl(NULL, 1);
bit_i810i2c_setsda(NULL, 1);
bit_i810ddc_setscl(NULL, 1);
bit_i810ddc_setsda(NULL, 1);
return 0;
}
return -ENODEV;
}
static struct i2c_algo_bit_data i810_i2c_bit_data = {
.setsda = bit_i810i2c_setsda,
.setscl = bit_i810i2c_setscl,
.getsda = bit_i810i2c_getsda,
.getscl = bit_i810i2c_getscl,
.udelay = CYCLE_DELAY,
.mdelay = CYCLE_DELAY,
.timeout = TIMEOUT,
};
static struct i2c_adapter i810_i2c_adapter = {
.owner = THIS_MODULE,
.name = "I810/I815 I2C Adapter",
.algo_data = &i810_i2c_bit_data,
};
static struct i2c_algo_bit_data i810_ddc_bit_data = {
.setsda = bit_i810ddc_setsda,
.setscl = bit_i810ddc_setscl,
.getsda = bit_i810ddc_getsda,
.getscl = bit_i810ddc_getscl,
.udelay = CYCLE_DELAY,
.mdelay = CYCLE_DELAY,
.timeout = TIMEOUT,
};
static struct i2c_adapter i810_ddc_adapter = {
.owner = THIS_MODULE,
.name = "I810/I815 DDC Adapter",
.algo_data = &i810_ddc_bit_data,
};
static struct pci_device_id i810_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_IG) },
{ 0, },
};
static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
int retval;
retval = config_i810(dev);
if (retval)
return retval;
dev_info(&dev->dev, "i810/i815 i2c device found.\n");
/* set up the sysfs linkage to our parent device */
i810_i2c_adapter.dev.parent = &dev->dev;
i810_ddc_adapter.dev.parent = &dev->dev;
retval = i2c_bit_add_bus(&i810_i2c_adapter);
if (retval)
return retval;
retval = i2c_bit_add_bus(&i810_ddc_adapter);
if (retval)
i2c_bit_del_bus(&i810_i2c_adapter);
return retval;
}
static void __devexit i810_remove(struct pci_dev *dev)
{
i2c_bit_del_bus(&i810_ddc_adapter);
i2c_bit_del_bus(&i810_i2c_adapter);
iounmap(ioaddr);
}
static struct pci_driver i810_driver = {
.name = "i810 smbus",
.id_table = i810_ids,
.probe = i810_probe,
.remove = __devexit_p(i810_remove),
};
static int __init i2c_i810_init(void)
{
return pci_module_init(&i810_driver);
}
static void __exit i2c_i810_exit(void)
{
pci_unregister_driver(&i810_driver);
}
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
"Philip Edelbrock <phil@netroedge.com>, "
"Ralph Metzler <rjkm@thp.uni-koeln.de>, "
"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
MODULE_DESCRIPTION("I810/I815 I2C/DDC driver");
MODULE_LICENSE("GPL");
module_init(i2c_i810_init);
module_exit(i2c_i810_exit);
drivers/i2c/busses/i2c-ibm_iic.c 0 → 100644
View file @ 6c16fa73
/*
* drivers/i2c/i2c-ibm_iic.c
*
* Support for the IIC peripheral on IBM PPC 4xx
*
* Copyright (c) 2003 Zultys Technologies.
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
*
* Based on original work by
* Ian DaSilva <idasilva@mvista.com>
* Armin Kuster <akuster@mvista.com>
* Matt Porter <mporter@mvista.com>
*
* Copyright 2000-2003 MontaVista Software Inc.
*
* Original driver version was highly leveraged from i2c-elektor.c
*
* Copyright 1995-97 Simon G. Vogl
* 1998-99 Hans Berglund
*
* With some changes from Kysti Mlkki <kmalkki@cc.hut.fi>
* and even Frodo Looijaard <frodol@dds.nl>
*
* 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.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <asm/ocp.h>
#include <asm/ibm4xx.h>
#include "i2c-ibm_iic.h"
#define DRIVER_VERSION "2.0"
MODULE_DESCRIPTION("IBM IIC driver v" DRIVER_VERSION);
MODULE_LICENSE("GPL");
static int iic_scan = 0;
MODULE_PARM(iic_scan, "i");
MODULE_PARM_DESC(iic_scan, "Scan for active chips on the bus");
static int iic_force_poll = 0;
MODULE_PARM(iic_force_poll, "i");
MODULE_PARM_DESC(iic_force_poll, "Force polling mode");
static int iic_force_fast = 0;
MODULE_PARM(iic_force_fast, "i");
MODULE_PARM_DESC(iic_fast_poll, "Force fast mode (400 kHz)");
#define DBG_LEVEL 0
#ifdef DBG
#undef DBG
#endif
#ifdef DBG2
#undef DBG2
#endif
#if DBG_LEVEL > 0
# define DBG(x...) printk(KERN_DEBUG "ibm-iic" ##x)
#else
# define DBG(x...) ((void)0)
#endif
#if DBG_LEVEL > 1
# define DBG2(x...) DBG( ##x )
#else
# define DBG2(x...) ((void)0)
#endif
#if DBG_LEVEL > 2
static void dump_iic_regs(const char* header, struct ibm_iic_private* dev)
{
volatile struct iic_regs *iic = dev->vaddr;
printk(KERN_DEBUG "ibm-iic%d: %s\n", dev->idx, header);
printk(KERN_DEBUG " cntl = 0x%02x, mdcntl = 0x%02x\n"
KERN_DEBUG " sts = 0x%02x, extsts = 0x%02x\n"
KERN_DEBUG " clkdiv = 0x%02x, xfrcnt = 0x%02x\n"
KERN_DEBUG " xtcntlss = 0x%02x, directcntl = 0x%02x\n",
in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts),
in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt),
in_8(&iic->xtcntlss), in_8(&iic->directcntl));
}
# define DUMP_REGS(h,dev) dump_iic_regs((h),(dev))
#else
# define DUMP_REGS(h,dev) ((void)0)
#endif
/* Enable/disable interrupt generation */
static inline void iic_interrupt_mode(struct ibm_iic_private* dev, int enable)
{
out_8(&dev->vaddr->intmsk, enable ? INTRMSK_EIMTC : 0);
}
/*
* Initialize IIC interface.
*/
static void iic_dev_init(struct ibm_iic_private* dev)
{
volatile struct iic_regs *iic = dev->vaddr;
DBG("%d: init\n", dev->idx);
/* Clear master address */
out_8(&iic->lmadr, 0);
out_8(&iic->hmadr, 0);
/* Clear slave address */
out_8(&iic->lsadr, 0);
out_8(&iic->hsadr, 0);
/* Clear status & extended status */
out_8(&iic->sts, STS_SCMP | STS_IRQA);
out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD | EXTSTS_LA
| EXTSTS_ICT | EXTSTS_XFRA);
/* Set clock divider */
out_8(&iic->clkdiv, dev->clckdiv);
/* Clear transfer count */
out_8(&iic->xfrcnt, 0);
/* Clear extended control and status */
out_8(&iic->xtcntlss, XTCNTLSS_SRC | XTCNTLSS_SRS | XTCNTLSS_SWC
| XTCNTLSS_SWS);
/* Clear control register */
out_8(&iic->cntl, 0);
/* Enable interrupts if possible */
iic_interrupt_mode(dev, dev->irq >= 0);
/* Set mode control */
out_8(&iic->mdcntl, MDCNTL_FMDB | MDCNTL_EINT | MDCNTL_EUBS
| (dev->fast_mode ? MDCNTL_FSM : 0));
DUMP_REGS("iic_init", dev);
}
/*
* Reset IIC interface
*/
static void iic_dev_reset(struct ibm_iic_private* dev)
{
volatile struct iic_regs *iic = dev->vaddr;
int i;
u8 dc;
DBG("%d: soft reset\n", dev->idx);
DUMP_REGS("reset", dev);
/* Place chip in the reset state */
out_8(&iic->xtcntlss, XTCNTLSS_SRST);
/* Check if bus is free */
dc = in_8(&iic->directcntl);
if (!DIRCTNL_FREE(dc)){
DBG("%d: trying to regain bus control\n", dev->idx);
/* Try to set bus free state */
out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC);
/* Wait until we regain bus control */
for (i = 0; i < 100; ++i){
dc = in_8(&iic->directcntl);
if (DIRCTNL_FREE(dc))
break;
/* Toggle SCL line */
dc ^= DIRCNTL_SCC;
out_8(&iic->directcntl, dc);
udelay(10);
dc ^= DIRCNTL_SCC;
out_8(&iic->directcntl, dc);
/* be nice */
cond_resched();
}
}
/* Remove reset */
out_8(&iic->xtcntlss, 0);
/* Reinitialize interface */
iic_dev_init(dev);
}
/*
* IIC interrupt handler
*/
static irqreturn_t iic_handler(int irq, void *dev_id, struct pt_regs *regs)
{
struct ibm_iic_private* dev = (struct ibm_iic_private*)dev_id;
volatile struct iic_regs* iic = dev->vaddr;
DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n",
dev->idx, in_8(&iic->sts), in_8(&iic->extsts));
/* Acknowledge IRQ and wakeup iic_wait_for_tc */
out_8(&iic->sts, STS_IRQA | STS_SCMP);
wake_up_interruptible(&dev->wq);
return IRQ_HANDLED;
}
/*
* Get master transfer result and clear errors if any.
* Returns the number of actually transferred bytes or error (<0)
*/
static int iic_xfer_result(struct ibm_iic_private* dev)
{
volatile struct iic_regs *iic = dev->vaddr;
if (unlikely(in_8(&iic->sts) & STS_ERR)){
DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx,
in_8(&iic->extsts));
/* Clear errors and possible pending IRQs */
out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD |
EXTSTS_LA | EXTSTS_ICT | EXTSTS_XFRA);
/* Flush master data buffer */
out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
/* Is bus free?
* If error happened during combined xfer
* IIC interface is usually stuck in some strange
* state, the only way out - soft reset.
*/
if ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){
DBG("%d: bus is stuck, resetting\n", dev->idx);
iic_dev_reset(dev);
}
return -EREMOTEIO;
}
else
return in_8(&iic->xfrcnt) & XFRCNT_MTC_MASK;
}
/*
* Try to abort active transfer.
*/
static void iic_abort_xfer(struct ibm_iic_private* dev)
{
volatile struct iic_regs *iic = dev->vaddr;
unsigned long x;
DBG("%d: iic_abort_xfer\n", dev->idx);
out_8(&iic->cntl, CNTL_HMT);
/*
* Wait for the abort command to complete.
* It's not worth to be optimized, just poll (timeout >= 1 tick)
*/
x = jiffies + 2;
while ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){
if (time_after(jiffies, x)){
DBG("%d: abort timeout, resetting...\n", dev->idx);
iic_dev_reset(dev);
return;
}
schedule();
}
/* Just to clear errors */
iic_xfer_result(dev);
}
/*
* Wait for master transfer to complete.
* It puts current process to sleep until we get interrupt or timeout expires.
* Returns the number of transferred bytes or error (<0)
*/
static int iic_wait_for_tc(struct ibm_iic_private* dev){
volatile struct iic_regs *iic = dev->vaddr;
int ret = 0;
if (dev->irq >= 0){
/* Interrupt mode */
wait_queue_t wait;
init_waitqueue_entry(&wait, current);
add_wait_queue(&dev->wq, &wait);
set_current_state(TASK_INTERRUPTIBLE);
if (in_8(&iic->sts) & STS_PT)
schedule_timeout(dev->adap.timeout * HZ);
set_current_state(TASK_RUNNING);
remove_wait_queue(&dev->wq, &wait);
if (unlikely(signal_pending(current))){
DBG("%d: wait interrupted\n", dev->idx);
ret = -ERESTARTSYS;
} else if (unlikely(in_8(&iic->sts) & STS_PT)){
DBG("%d: wait timeout\n", dev->idx);
ret = -ETIMEDOUT;
}
}
else {
/* Polling mode */
unsigned long x = jiffies + dev->adap.timeout * HZ;
while (in_8(&iic->sts) & STS_PT){
if (unlikely(time_after(jiffies, x))){
DBG("%d: poll timeout\n", dev->idx);
ret = -ETIMEDOUT;
break;
}
if (unlikely(signal_pending(current))){
DBG("%d: poll interrupted\n", dev->idx);
ret = -ERESTARTSYS;
break;
}
schedule();
}
}
if (unlikely(ret < 0))
iic_abort_xfer(dev);
else
ret = iic_xfer_result(dev);
DBG2("%d: iic_wait_for_tc -> %d\n", dev->idx, ret);
return ret;
}
/*
* Low level master transfer routine
*/
static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
int combined_xfer)
{
volatile struct iic_regs *iic = dev->vaddr;
char* buf = pm->buf;
int i, j, loops, ret = 0;
int len = pm->len;
u8 cntl = (in_8(&iic->cntl) & CNTL_AMD) | CNTL_PT;
if (pm->flags & I2C_M_RD)
cntl |= CNTL_RW;
loops = (len + 3) / 4;
for (i = 0; i < loops; ++i, len -= 4){
int count = len > 4 ? 4 : len;
u8 cmd = cntl | ((count - 1) << CNTL_TCT_SHIFT);
if (!(cntl & CNTL_RW))
for (j = 0; j < count; ++j)
out_8((volatile u8*)&iic->mdbuf, *buf++);
if (i < loops - 1)
cmd |= CNTL_CHT;
else if (combined_xfer)
cmd |= CNTL_RPST;
DBG2("%d: xfer_bytes, %d, CNTL = 0x%02x\n", dev->idx, count, cmd);
/* Start transfer */
out_8(&iic->cntl, cmd);
/* Wait for completion */
ret = iic_wait_for_tc(dev);
if (unlikely(ret < 0))
break;
else if (unlikely(ret != count)){
DBG("%d: xfer_bytes, requested %d, transfered %d\n",
dev->idx, count, ret);
/* If it's not a last part of xfer, abort it */
if (combined_xfer || (i < loops - 1))
iic_abort_xfer(dev);
ret = -EREMOTEIO;
break;
}
if (cntl & CNTL_RW)
for (j = 0; j < count; ++j)
*buf++ = in_8((volatile u8*)&iic->mdbuf);
}
return ret > 0 ? 0 : ret;
}
/*
* Set target slave address for master transfer
*/
static inline void iic_address(struct ibm_iic_private* dev, struct i2c_msg* msg)
{
volatile struct iic_regs *iic = dev->vaddr;
u16 addr = msg->addr;
DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx,
addr, msg->flags & I2C_M_TEN ? 10 : 7);
if (msg->flags & I2C_M_TEN){
out_8(&iic->cntl, CNTL_AMD);
out_8(&iic->lmadr, addr);
out_8(&iic->hmadr, 0xf0 | ((addr >> 7) & 0x06));
}
else {
out_8(&iic->cntl, 0);
out_8(&iic->lmadr, addr << 1);
}
}
static inline int iic_invalid_address(const struct i2c_msg* p)
{
return (p->addr > 0x3ff) || (!(p->flags & I2C_M_TEN) && (p->addr > 0x7f));
}
static inline int iic_address_neq(const struct i2c_msg* p1,
const struct i2c_msg* p2)
{
return (p1->addr != p2->addr)
|| ((p1->flags & I2C_M_TEN) != (p2->flags & I2C_M_TEN));
}
/*
* Generic master transfer entrypoint.
* Returns the number of processed messages or error (<0)
*/
static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
{
struct ibm_iic_private* dev = (struct ibm_iic_private*)(i2c_get_adapdata(adap));
volatile struct iic_regs *iic = dev->vaddr;
int i, ret = 0;
DBG2("%d: iic_xfer, %d msg(s)\n", dev->idx, num);
if (!num)
return 0;
/* Check the sanity of the passed messages.
* Uhh, generic i2c layer is more suitable place for such code...
*/
if (unlikely(iic_invalid_address(&msgs[0]))){
DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx,
msgs[0].addr, msgs[0].flags & I2C_M_TEN ? 10 : 7);
return -EINVAL;
}
for (i = 0; i < num; ++i){
if (unlikely(msgs[i].len <= 0)){
DBG("%d: invalid len %d in msg[%d]\n", dev->idx,
msgs[i].len, i);
return -EINVAL;
}
if (unlikely(iic_address_neq(&msgs[0], &msgs[i]))){
DBG("%d: invalid addr in msg[%d]\n", dev->idx, i);
return -EINVAL;
}
}
/* Check bus state */
if (unlikely((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE)){
DBG("%d: iic_xfer, bus is not free\n", dev->idx);
/* Usually it means something serious has happend.
* We *cannot* have unfinished previous transfer
* so it doesn't make any sense to try to stop it.
* Probably we were not able to recover from the
* previous error.
* The only *reasonable* thing I can think of here
* is soft reset. --ebs
*/
iic_dev_reset(dev);
if ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){
DBG("%d: iic_xfer, bus is still not free\n", dev->idx);
return -EREMOTEIO;
}
}
else {
/* Flush master data buffer (just in case) */
out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
}
/* Load slave address */
iic_address(dev, &msgs[0]);
/* Do real transfer */
for (i = 0; i < num && !ret; ++i)
ret = iic_xfer_bytes(dev, &msgs[i], i < num - 1);
return ret < 0 ? ret : num;
}
static u32 iic_func(struct i2c_adapter *adap)
{
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR;
}
static struct i2c_algorithm iic_algo = {
.name = "IBM IIC algorithm",
.id = I2C_ALGO_OCP,
.master_xfer = iic_xfer,
.smbus_xfer = NULL,
.slave_send = NULL,
.slave_recv = NULL,
.algo_control = NULL,
.functionality = iic_func
};
/*
* Scan bus for valid 7-bit addresses (ie things that ACK on 1 byte read)
* We only scan range [0x08 - 0x77], all other addresses are reserved anyway
*/
static void __devinit iic_scan_bus(struct ibm_iic_private* dev)
{
int found = 0;
char dummy;
struct i2c_msg msg = {
.buf = &dummy,
.len = sizeof(dummy),
.flags = I2C_M_RD
};
printk(KERN_INFO "ibm-iic%d: scanning bus...\n" KERN_INFO, dev->idx);
for (msg.addr = 8; msg.addr < 0x78; ++msg.addr)
if (iic_xfer(&dev->adap, &msg, 1) == 1){
++found;
printk(" 0x%02x", msg.addr);
}
printk("%sibm-iic%d: %d device(s) detected\n",
found ? "\n" KERN_INFO : "", dev->idx, found);
}
/*
* Calculates IICx_CLCKDIV value for a specific OPB clock frequency
*/
static inline u8 iic_clckdiv(unsigned int opb)
{
/* Compatibility kludge, should go away after all cards
* are fixed to fill correct value for opbfreq.
* Previous driver version used hardcoded divider value 4,
* it corresponds to OPB frequency from the range (40, 50] MHz
*/
if (!opb){
printk(KERN_WARNING "ibm-iic: using compatibility value for OPB freq,"
" fix your board specific setup\n");
opb = 50000000;
}
/* Convert to MHz */
opb /= 1000000;
if (opb < 20 || opb > 150){
printk(KERN_CRIT "ibm-iic: invalid OPB clock frequency %u MHz\n",
opb);
opb = opb < 20 ? 20 : 150;
}
return (u8)((opb + 9) / 10 - 1);
}
/*
* Register single IIC interface
*/
static int __devinit iic_probe(struct ocp_device *ocp){
struct ibm_iic_private* dev;
struct i2c_adapter* adap;
int ret;
bd_t* bd = (bd_t*)&__res;
if (!(dev = kmalloc(sizeof(*dev), GFP_KERNEL))){
printk(KERN_CRIT "ibm-iic: failed to allocate device data\n");
return -ENOMEM;
}
memset(dev, 0, sizeof(*dev));
dev->idx = ocp->num;
ocp_set_drvdata(ocp, dev);
if (!(dev->vaddr = ioremap(ocp->paddr, sizeof(struct iic_regs)))){
printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n",
dev->idx);
ret = -ENXIO;
goto fail2;
}
init_waitqueue_head(&dev->wq);
dev->irq = iic_force_poll ? -1 : ocp->irq;
if (dev->irq >= 0){
/* Disable interrupts until we finish intialization,
assumes level-sensitive IRQ setup...
*/
iic_interrupt_mode(dev, 0);
if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
dev->idx, dev->irq);
/* Fallback to the polling mode */
dev->irq = -1;
}
}
if (dev->irq < 0)
printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
dev->idx);
/* Board specific settings */
BUG_ON(dev->idx >= sizeof(bd->bi_iic_fast) / sizeof(bd->bi_iic_fast[0]));
dev->fast_mode = iic_force_fast ? 1 : bd->bi_iic_fast[dev->idx];
/* clckdiv is the same for *all* IIC interfaces,
* but I'd rather make a copy than introduce another global. --ebs
*/
dev->clckdiv = iic_clckdiv(bd->bi_opb_busfreq);
DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
/* Initialize IIC interface */
iic_dev_init(dev);
/* Register it with i2c layer */
adap = &dev->adap;
strcpy(adap->dev.name, "IBM IIC");
i2c_set_adapdata(adap, dev);
adap->id = I2C_HW_OCP | iic_algo.id;
adap->algo = &iic_algo;
adap->client_register = NULL;
adap->client_unregister = NULL;
adap->timeout = 1;
adap->retries = 1;
if ((ret = i2c_add_adapter(adap)) != 0){
printk(KERN_CRIT "ibm-iic%d: failed to register i2c adapter\n",
dev->idx);
goto fail;
}
printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
/* Scan bus if requested by user */
if (iic_scan)
iic_scan_bus(dev);
return 0;
fail:
if (dev->irq >= 0){
iic_interrupt_mode(dev, 0);
free_irq(dev->irq, dev);
}
iounmap((void*)dev->vaddr);
fail2:
ocp_set_drvdata(ocp, 0);
kfree(dev);
return ret;
}
/*
* Cleanup initialized IIC interface
*/
static void __devexit iic_remove(struct ocp_device *ocp)
{
struct ibm_iic_private* dev = (struct ibm_iic_private*)ocp_get_drvdata(ocp);
BUG_ON(dev == NULL);
if (i2c_del_adapter(&dev->adap)){
printk(KERN_CRIT "ibm-iic%d: failed to delete i2c adapter :(\n",
dev->idx);
/* That's *very* bad, just shutdown IRQ ... */
if (dev->irq >= 0){
iic_interrupt_mode(dev, 0);
free_irq(dev->irq, dev);
dev->irq = -1;
}
} else {
if (dev->irq >= 0){
iic_interrupt_mode(dev, 0);
free_irq(dev->irq, dev);
}
iounmap((void*)dev->vaddr);
kfree(dev);
}
}
static struct ocp_device_id ibm_iic_ids[] __devinitdata =
{
{ .vendor = OCP_VENDOR_IBM, .device = OCP_FUNC_IIC },
{ .vendor = OCP_VENDOR_INVALID }
};
MODULE_DEVICE_TABLE(ocp, ibm_iic_ids);
static struct ocp_driver ibm_iic_driver =
{
.name = "ocp_iic",
.id_table = ibm_iic_ids,
.probe = iic_probe,
.remove = __devexit_p(iic_remove),
#if defined(CONFIG_PM)
.suspend = NULL,
.resume = NULL,
#endif
};
static int __init iic_init(void)
{
printk(KERN_INFO "IBM IIC driver v" DRIVER_VERSION "\n");
return ocp_module_init(&ibm_iic_driver);
}
static void __exit iic_exit(void)
{
ocp_unregister_driver(&ibm_iic_driver);
}
module_init(iic_init);
module_exit(iic_exit);
drivers/i2c/busses/i2c-ibm_iic.h 0 → 100644
View file @ 6c16fa73
/*
* drivers/i2c/i2c-ibm_iic.h
*
* Support for the IIC peripheral on IBM PPC 4xx
*
* Copyright (c) 2003 Zultys Technologies.
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
*
* Based on original work by
* Ian DaSilva <idasilva@mvista.com>
* Armin Kuster <akuster@mvista.com>
* Matt Porter <mporter@mvista.com>
*
* Copyright 2000-2003 MontaVista Software Inc.
*
* 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.
*
*/
#ifndef __I2C_IBM_IIC_H_
#define __I2C_IBM_IIC_H_
#include <linux/config.h>
#include <linux/i2c.h>
struct iic_regs {
u16 mdbuf;
u16 sbbuf;
u8 lmadr;
u8 hmadr;
u8 cntl;
u8 mdcntl;
u8 sts;
u8 extsts;
u8 lsadr;
u8 hsadr;
u8 clkdiv;
u8 intmsk;
u8 xfrcnt;
u8 xtcntlss;
u8 directcntl;
};
struct ibm_iic_private {
struct i2c_adapter adap;
volatile struct iic_regs *vaddr;
wait_queue_head_t wq;
int idx;
int irq;
int fast_mode;
u8 clckdiv;
};
/* IICx_CNTL register */
#define CNTL_HMT 0x80
#define CNTL_AMD 0x40
#define CNTL_TCT_MASK 0x30
#define CNTL_TCT_SHIFT 4
#define CNTL_RPST 0x08
#define CNTL_CHT 0x04
#define CNTL_RW 0x02
#define CNTL_PT 0x01
/* IICx_MDCNTL register */
#define MDCNTL_FSDB 0x80
#define MDCNTL_FMDB 0x40
#define MDCNTL_EGC 0x20
#define MDCNTL_FSM 0x10
#define MDCNTL_ESM 0x08
#define MDCNTL_EINT 0x04
#define MDCNTL_EUBS 0x02
#define MDCNTL_HSCL 0x01
/* IICx_STS register */
#define STS_SSS 0x80
#define STS_SLPR 0x40
#define STS_MDBS 0x20
#define STS_MDBF 0x10
#define STS_SCMP 0x08
#define STS_ERR 0x04
#define STS_IRQA 0x02
#define STS_PT 0x01
/* IICx_EXTSTS register */
#define EXTSTS_IRQP 0x80
#define EXTSTS_BCS_MASK 0x70
#define EXTSTS_BCS_FREE 0x40
#define EXTSTS_IRQD 0x08
#define EXTSTS_LA 0x04
#define EXTSTS_ICT 0x02
#define EXTSTS_XFRA 0x01
/* IICx_INTRMSK register */
#define INTRMSK_EIRC 0x80
#define INTRMSK_EIRS 0x40
#define INTRMSK_EIWC 0x20
#define INTRMSK_EIWS 0x10
#define INTRMSK_EIHE 0x08
#define INTRMSK_EIIC 0x04
#define INTRMSK_EITA 0x02
#define INTRMSK_EIMTC 0x01
/* IICx_XFRCNT register */
#define XFRCNT_MTC_MASK 0x07
/* IICx_XTCNTLSS register */
#define XTCNTLSS_SRC 0x80
#define XTCNTLSS_SRS 0x40
#define XTCNTLSS_SWC 0x20
#define XTCNTLSS_SWS 0x10
#define XTCNTLSS_SRST 0x01
/* IICx_DIRECTCNTL register */
#define DIRCNTL_SDAC 0x08
#define DIRCNTL_SCC 0x04
#define DIRCNTL_MSDA 0x02
#define DIRCNTL_MSC 0x01
/* Check if we really control the I2C bus and bus is free */
#define DIRCTNL_FREE(v) (((v) & 0x0f) == 0x0f)
#endif /* __I2C_IBM_IIC_H_ */
drivers/i2c/busses/i2c-isa.c
View file @ 6c16fa73
......@@ -30,21 +30,29 @@
#include <linux/errno.h>
#include <linux/i2c.h>
static u32 isa_func(struct i2c_adapter *adapter);
/* This is the actual algorithm we define */
static struct i2c_algorithm isa_algorithm = {
.name = "ISA bus algorithm",
.id = I2C_ALGO_ISA,
.functionality = isa_func,
};
/* There can only be one... */
static struct i2c_adapter isa_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_ISA | I2C_HW_ISA,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &isa_algorithm,
.name = "ISA main adapter",
};
/* We can't do a thing... */
static u32 isa_func(struct i2c_adapter *adapter)
{
return 0;
}
static int __init i2c_isa_init(void)
{
return i2c_add_adapter(&isa_adapter);
......
drivers/i2c/i2c-adap-ite.c → drivers/i2c/busses/i2c-ite.c
View file @ 6c16fa73
......@@ -38,7 +38,6 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/init.h>
#include <asm/irq.h>
#include <asm/io.h>
......@@ -46,7 +45,7 @@
#include <linux/i2c.h>
#include <linux/i2c-algo-ite.h>
#include <linux/i2c-adap-ite.h>
#include "i2c-ite.h"
#include "../i2c-ite.h"
#define DEFAULT_BASE 0x14014030
#define ITE_IIC_IO_SIZE 0x40
......
drivers/i2c/i2c-keywest.c → drivers/i2c/busses/i2c-keywest.c
View file @ 6c16fa73
......@@ -45,7 +45,6 @@
#include <linux/module.h>
#include <linux/config.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/pci.h>
......
drivers/i2c/busses/i2c-nforce2.c
View file @ 6c16fa73
......@@ -118,7 +118,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter nforce2_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_NFORCE2,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -321,7 +320,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int reg,
smbus->adapter = nforce2_adapter;
smbus->adapter.algo_data = smbus;
smbus->adapter.dev.parent = &dev->dev;
snprintf(smbus->adapter.name, DEVICE_NAME_SIZE,
snprintf(smbus->adapter.name, I2C_NAME_SIZE,
"SMBus nForce2 adapter at %04x", smbus->base);
error = i2c_add_adapter(&smbus->adapter);
......
drivers/i2c/i2c-philips-par.c → drivers/i2c/busses/i2c-philips-par.c
View file @ 6c16fa73
......@@ -24,10 +24,8 @@
/* $Id: i2c-philips-par.c,v 1.29 2003/01/21 08:08:16 kmalkki Exp $ */
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/stddef.h>
#include <linux/parport.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
......@@ -45,11 +43,6 @@ struct i2c_par
static struct i2c_par *adapter_list;
/* ----- global defines ----------------------------------------------- */
#define DEB(x) /* should be reasonable open, close &c. */
#define DEB2(x) /* low level debugging - very slow */
#define DEBE(x) x /* error messages */
/* ----- printer port defines ------------------------------------------*/
/* Pin Port Inverted name */
#define I2C_ON 0x20 /* 12 status N paper */
......@@ -163,8 +156,9 @@ static void i2c_parport_attach (struct parport *port)
printk(KERN_ERR "i2c-philips-par: Unable to malloc.\n");
return;
}
memset (adapter, 0x00, sizeof(struct i2c_par));
printk(KERN_DEBUG "i2c-philips-par.o: attaching to %s\n", port->name);
/* printk(KERN_DEBUG "i2c-philips-par.o: attaching to %s\n", port->name); */
adapter->pdev = parport_register_device(port, "i2c-philips-par",
NULL, NULL, NULL,
......@@ -191,8 +185,7 @@ static void i2c_parport_attach (struct parport *port)
bit_lp_setscl(port, 1);
parport_release(adapter->pdev);
if (i2c_bit_add_bus(&adapter->adapter) < 0)
{
if (i2c_bit_add_bus(&adapter->adapter) < 0) {
printk(KERN_ERR "i2c-philips-par: Unable to register with I2C.\n");
parport_unregister_device(adapter->pdev);
kfree(adapter);
......@@ -207,10 +200,8 @@ static void i2c_parport_detach (struct parport *port)
{
struct i2c_par *adapter, *prev = NULL;
for (adapter = adapter_list; adapter; adapter = adapter->next)
{
if (adapter->pdev->port == port)
{
for (adapter = adapter_list; adapter; adapter = adapter->next) {
if (adapter->pdev->port == port) {
parport_unregister_device(adapter->pdev);
i2c_bit_del_bus(&adapter->adapter);
if (prev)
......@@ -224,21 +215,17 @@ static void i2c_parport_detach (struct parport *port)
}
}
static struct parport_driver i2c_driver = {
"i2c-philips-par",
i2c_parport_attach,
i2c_parport_detach,
NULL
.name = "i2c-philips-par",
.attach = i2c_parport_attach,
.detach = i2c_parport_detach,
};
int __init i2c_bitlp_init(void)
{
printk(KERN_INFO "i2c-philips-par.o: i2c Philips parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
parport_register_driver(&i2c_driver);
printk(KERN_INFO "i2c Philips parallel port adapter driver\n");
return 0;
return parport_register_driver(&i2c_driver);
}
void __exit i2c_bitlp_exit(void)
......
drivers/i2c/busses/i2c-piix4.c
View file @ 6c16fa73
......@@ -395,7 +395,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter piix4_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_PIIX4,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -451,7 +450,7 @@ static int __devinit piix4_probe(struct pci_dev *dev, const struct pci_device_id
/* set up the driverfs linkage to our parent device */
piix4_adapter.dev.parent = &dev->dev;
snprintf(piix4_adapter.name, DEVICE_NAME_SIZE,
snprintf(piix4_adapter.name, I2C_NAME_SIZE,
"SMBus PIIX4 adapter at %04x", piix4_smba);
retval = i2c_add_adapter(&piix4_adapter);
......
drivers/i2c/i2c-prosavage.c → drivers/i2c/busses/i2c-prosavage.c
View file @ 6c16fa73
......@@ -54,28 +54,20 @@
* (Additional documentation needed :(
*/
#include <linux/version.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <asm/io.h>
/*
* driver configuration
*/
#define DRIVER_ID "i2c-prosavage"
#define DRIVER_VERSION "20030621"
#define ADAPTER_NAME(x) (x).name
#define MAX_BUSSES 2
struct s_i2c_bus {
u8 *mmvga;
void *mmvga;
int i2c_reg;
int adap_ok;
struct i2c_adapter adap;
......@@ -83,7 +75,7 @@ struct s_i2c_bus {
};
struct s_i2c_chip {
u8 *mmio;
void *mmio;
struct s_i2c_bus i2c_bus[MAX_BUSSES];
};
......@@ -103,9 +95,6 @@ struct s_i2c_chip {
/*
* S3/VIA 8365/8375 registers
*/
#ifndef PCI_VENDOR_ID_S3
#define PCI_VENDOR_ID_S3 0x5333
#endif
#ifndef PCI_DEVICE_ID_S3_SAVAGE4
#define PCI_DEVICE_ID_S3_SAVAGE4 0x8a25
#endif
......@@ -127,9 +116,9 @@ struct s_i2c_chip {
#define I2C_SCL_IN 0x04
#define I2C_SDA_IN 0x08
#define SET_CR_IX(p, val) *((p)->mmvga + VGA_CR_IX) = (u8)(val)
#define SET_CR_DATA(p, val) *((p)->mmvga + VGA_CR_DATA) = (u8)(val)
#define GET_CR_DATA(p) *((p)->mmvga + VGA_CR_DATA)
#define SET_CR_IX(p, val) writeb((val), (p)->mmvga + VGA_CR_IX)
#define SET_CR_DATA(p, val) writeb((val), (p)->mmvga + VGA_CR_DATA)
#define GET_CR_DATA(p) readb((p)->mmvga + VGA_CR_DATA)
/*
......@@ -191,12 +180,13 @@ static int bit_s3via_getsda(void *bus)
/*
* adapter initialisation
*/
static int i2c_register_bus(struct s_i2c_bus *p, u8 *mmvga, u32 i2c_reg)
static int i2c_register_bus(struct pci_dev *dev, struct s_i2c_bus *p, u8 *mmvga, u32 i2c_reg)
{
int ret;
p->adap.owner = THIS_MODULE;
p->adap.id = I2C_HW_B_S3VIA;
p->adap.algo_data = &p->algo;
p->adap.dev.parent = &dev->dev;
p->algo.setsda = bit_s3via_setsda;
p->algo.setscl = bit_s3via_setscl;
p->algo.getsda = bit_s3via_getsda;
......@@ -237,8 +227,8 @@ static void __devexit prosavage_remove(struct pci_dev *dev)
ret = i2c_bit_del_bus(&chip->i2c_bus[i].adap);
if (ret) {
printk(DRIVER_ID ": %s not removed\n",
ADAPTER_NAME(chip->i2c_bus[i].adap));
dev_err(&dev->dev, ": %s not removed\n",
chip->i2c_bus[i].adap.name);
}
}
if (chip->mmio) {
......@@ -271,7 +261,7 @@ static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_devic
chip->mmio = ioremap_nocache(base, len);
if (chip->mmio == NULL) {
printk (DRIVER_ID ": ioremap failed\n");
dev_err(&dev->dev, "ioremap failed\n");
prosavage_remove(dev);
return -ENODEV;
}
......@@ -287,10 +277,10 @@ static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_devic
* i2c bus registration
*/
bus = &chip->i2c_bus[0];
snprintf(ADAPTER_NAME(bus->adap), sizeof(ADAPTER_NAME(bus->adap)),
snprintf(bus->adap.name, sizeof(bus->adap.name),
"ProSavage I2C bus at %02x:%02x.%x",
dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
ret = i2c_register_bus(bus, chip->mmio + 0x8000, CR_SERIAL1);
ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL1);
if (ret) {
goto err_adap;
}
......@@ -298,16 +288,16 @@ static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_devic
* ddc bus registration
*/
bus = &chip->i2c_bus[1];
snprintf(ADAPTER_NAME(bus->adap), sizeof(ADAPTER_NAME(bus->adap)),
snprintf(bus->adap.name, sizeof(bus->adap.name),
"ProSavage DDC bus at %02x:%02x.%x",
dev->bus->number, PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
ret = i2c_register_bus(bus, chip->mmio + 0x8000, CR_SERIAL2);
ret = i2c_register_bus(dev, bus, chip->mmio + 0x8000, CR_SERIAL2);
if (ret) {
goto err_adap;
}
return 0;
err_adap:
printk (DRIVER_ID ": %s failed\n", ADAPTER_NAME(bus->adap));
dev_err(&dev->dev, ": %s failed\n", bus->adap.name);
prosavage_remove(dev);
return ret;
}
......@@ -317,17 +307,9 @@ static int __devinit prosavage_probe(struct pci_dev *dev, const struct pci_devic
* Data for PCI driver interface
*/
static struct pci_device_id prosavage_pci_tbl[] = {
{
.vendor = PCI_VENDOR_ID_S3,
.device = PCI_DEVICE_ID_S3_SAVAGE4,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},{
.vendor = PCI_VENDOR_ID_S3,
.device = PCI_DEVICE_ID_S3_PROSAVAGE8,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},{ 0, }
{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SAVAGE4) },
{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_PROSAVAGE8) },
{ 0, },
};
static struct pci_driver prosavage_driver = {
......@@ -339,7 +321,6 @@ static struct pci_driver prosavage_driver = {
static int __init i2c_prosavage_init(void)
{
printk(DRIVER_ID " version %s (%s)\n", I2C_VERSION, DRIVER_VERSION);
return pci_module_init(&prosavage_driver);
}
......
drivers/i2c/busses/i2c-savage4.c 0 → 100644
View file @ 6c16fa73
/*
i2c-savage4.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
Ralph Metzler <rjkm@thp.uni-koeln.de>, and
Mark D. Studebaker <mdsxyz123@yahoo.com>
Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
Simon Vogl
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.
*/
/* This interfaces to the I2C bus of the Savage4 to gain access to
the BT869 and possibly other I2C devices. The DDC bus is not
yet supported because its register is not memory-mapped.
However we leave the DDC code here, commented out, to make
it easier to add later.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
/* 3DFX defines */
#define PCI_CHIP_SAVAGE3D 0x8A20
#define PCI_CHIP_SAVAGE3D_MV 0x8A21
#define PCI_CHIP_SAVAGE4 0x8A22
#define PCI_CHIP_SAVAGE2000 0x9102
#define PCI_CHIP_PROSAVAGE_PM 0x8A25
#define PCI_CHIP_PROSAVAGE_KM 0x8A26
#define PCI_CHIP_SAVAGE_MX_MV 0x8c10
#define PCI_CHIP_SAVAGE_MX 0x8c11
#define PCI_CHIP_SAVAGE_IX_MV 0x8c12
#define PCI_CHIP_SAVAGE_IX 0x8c13
#define REG 0xff20 /* Serial Port 1 Register */
/* bit locations in the register */
#define DDC_ENAB 0x00040000
#define DDC_SCL_OUT 0x00080000
#define DDC_SDA_OUT 0x00100000
#define DDC_SCL_IN 0x00200000
#define DDC_SDA_IN 0x00400000
#define I2C_ENAB 0x00000020
#define I2C_SCL_OUT 0x00000001
#define I2C_SDA_OUT 0x00000002
#define I2C_SCL_IN 0x00000008
#define I2C_SDA_IN 0x00000010
/* initialization states */
#define INIT2 0x20
#define INIT3 0x04
/* delays */
#define CYCLE_DELAY 10
#define TIMEOUT (HZ / 2)
static void *ioaddr;
/* The sav GPIO registers don't have individual masks for each bit
so we always have to read before writing. */
static void bit_savi2c_setscl(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if(val)
r |= I2C_SCL_OUT;
else
r &= ~I2C_SCL_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
static void bit_savi2c_setsda(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if(val)
r |= I2C_SDA_OUT;
else
r &= ~I2C_SDA_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
/* The GPIO pins are open drain, so the pins always remain outputs.
We rely on the i2c-algo-bit routines to set the pins high before
reading the input from other chips. */
static int bit_savi2c_getscl(void *data)
{
return (0 != (readl(ioaddr + REG) & I2C_SCL_IN));
}
static int bit_savi2c_getsda(void *data)
{
return (0 != (readl(ioaddr + REG) & I2C_SDA_IN));
}
/* Configures the chip */
static int config_s4(struct pci_dev *dev)
{
unsigned int cadr;
/* map memory */
cadr = dev->resource[0].start;
cadr &= PCI_BASE_ADDRESS_MEM_MASK;
ioaddr = ioremap_nocache(cadr, 0x0080000);
if (ioaddr) {
/* writel(0x8160, ioaddr + REG2); */
writel(0x00000020, ioaddr + REG);
dev_info(&dev->dev, "Using Savage4 at %p\n", ioaddr);
return 0;
}
return -ENODEV;
}
static struct i2c_algo_bit_data sav_i2c_bit_data = {
.setsda = bit_savi2c_setsda,
.setscl = bit_savi2c_setscl,
.getsda = bit_savi2c_getsda,
.getscl = bit_savi2c_getscl,
.udelay = CYCLE_DELAY,
.mdelay = CYCLE_DELAY,
.timeout = TIMEOUT
};
static struct i2c_adapter savage4_i2c_adapter = {
.owner = THIS_MODULE,
.name = "I2C Savage4 adapter",
.algo_data = &sav_i2c_bit_data,
};
static struct pci_device_id savage4_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE4) },
{ PCI_DEVICE(PCI_VENDOR_ID_S3, PCI_CHIP_SAVAGE2000) },
{ 0, }
};
static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
int retval;
retval = config_s4(dev);
if (retval)
return retval;
/* set up the sysfs linkage to our parent device */
savage4_i2c_adapter.dev.parent = &dev->dev;
return i2c_bit_add_bus(&savage4_i2c_adapter);
}
static void __devexit savage4_remove(struct pci_dev *dev)
{
i2c_bit_del_bus(&savage4_i2c_adapter);
iounmap(ioaddr);
}
static struct pci_driver savage4_driver = {
.name = "savage4 smbus",
.id_table = savage4_ids,
.probe = savage4_probe,
.remove = __devexit_p(savage4_remove),
};
static int __init i2c_savage4_init(void)
{
return pci_module_init(&savage4_driver);
}
static void __exit i2c_savage4_exit(void)
{
pci_unregister_driver(&savage4_driver);
}
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
"Philip Edelbrock <phil@netroedge.com>, "
"Ralph Metzler <rjkm@thp.uni-koeln.de>, "
"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
MODULE_DESCRIPTION("Savage4 I2C/SMBus driver");
MODULE_LICENSE("GPL");
module_init(i2c_savage4_init);
module_exit(i2c_savage4_exit);
drivers/i2c/busses/i2c-sis5595.c 0 → 100644
View file @ 6c16fa73
/*
sis5595.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
Philip Edelbrock <phil@netroedge.com>
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.
*/
/* Note: we assume there can only be one SIS5595 with one SMBus interface */
/*
Note: all have mfr. ID 0x1039.
SUPPORTED PCI ID
5595 0008
Note: these chips contain a 0008 device which is incompatible with the
5595. We recognize these by the presence of the listed
"blacklist" PCI ID and refuse to load.
NOT SUPPORTED PCI ID BLACKLIST PCI ID
540 0008 0540
550 0008 0550
5513 0008 5511
5581 0008 5597
5582 0008 5597
5597 0008 5597
5598 0008 5597/5598
630 0008 0630
645 0008 0645
646 0008 0646
648 0008 0648
650 0008 0650
651 0008 0651
730 0008 0730
735 0008 0735
745 0008 0745
746 0008 0746
*/
/* TO DO:
* Add Block Transfers (ugly, but supported by the adapter)
* Add adapter resets
*/
/* #define DEBUG 1 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/i2c.h>
static int blacklist[] = {
PCI_DEVICE_ID_SI_540,
PCI_DEVICE_ID_SI_550,
PCI_DEVICE_ID_SI_630,
PCI_DEVICE_ID_SI_645,
PCI_DEVICE_ID_SI_646,
PCI_DEVICE_ID_SI_648,
PCI_DEVICE_ID_SI_650,
PCI_DEVICE_ID_SI_651,
PCI_DEVICE_ID_SI_730,
PCI_DEVICE_ID_SI_735,
PCI_DEVICE_ID_SI_745,
PCI_DEVICE_ID_SI_746,
PCI_DEVICE_ID_SI_5511, /* 5513 chip has the 0008 device but that ID
shows up in other chips so we use the 5511
ID for recognition */
PCI_DEVICE_ID_SI_5597,
PCI_DEVICE_ID_SI_5598,
0, /* terminates the list */
};
/* Length of ISA address segment */
#define SIS5595_EXTENT 8
/* SIS5595 SMBus registers */
#define SMB_STS_LO 0x00
#define SMB_STS_HI 0x01
#define SMB_CTL_LO 0x02
#define SMB_CTL_HI 0x03
#define SMB_ADDR 0x04
#define SMB_CMD 0x05
#define SMB_PCNT 0x06
#define SMB_CNT 0x07
#define SMB_BYTE 0x08
#define SMB_DEV 0x10
#define SMB_DB0 0x11
#define SMB_DB1 0x12
#define SMB_HAA 0x13
/* PCI Address Constants */
#define SMB_INDEX 0x38
#define SMB_DAT 0x39
#define SIS5595_ENABLE_REG 0x40
#define ACPI_BASE 0x90
/* Other settings */
#define MAX_TIMEOUT 500
/* SIS5595 constants */
#define SIS5595_QUICK 0x00
#define SIS5595_BYTE 0x02
#define SIS5595_BYTE_DATA 0x04
#define SIS5595_WORD_DATA 0x06
#define SIS5595_PROC_CALL 0x08
#define SIS5595_BLOCK_DATA 0x0A
/* insmod parameters */
/* If force_addr is set to anything different from 0, we forcibly enable
the device at the given address. */
static int force_addr = 0;
MODULE_PARM(force_addr, "i");
MODULE_PARM_DESC(force_addr, "Initialize the base address of the i2c controller");
static unsigned short sis5595_base = 0;
static u8 sis5595_read(u8 reg)
{
outb(reg, sis5595_base + SMB_INDEX);
return inb(sis5595_base + SMB_DAT);
}
static void sis5595_write(u8 reg, u8 data)
{
outb(reg, sis5595_base + SMB_INDEX);
outb(data, sis5595_base + SMB_DAT);
}
static int sis5595_setup(struct pci_dev *SIS5595_dev)
{
u16 a;
u8 val;
int *i;
int retval = -ENODEV;
/* Look for imposters */
for (i = blacklist; *i != 0; i++) {
struct pci_dev *dev;
dev = pci_get_device(PCI_VENDOR_ID_SI, *i, NULL);
if (dev) {
dev_err(&SIS5595_dev->dev, "Looked for SIS5595 but found unsupported device %.4x\n", *i);
pci_dev_put(dev);
return -ENODEV;
}
}
/* Determine the address of the SMBus areas */
pci_read_config_word(SIS5595_dev, ACPI_BASE, &sis5595_base);
if (sis5595_base == 0 && force_addr == 0) {
dev_err(&SIS5595_dev->dev, "ACPI base address uninitialized - upgrade BIOS or use force_addr=0xaddr\n");
return -ENODEV;
}
if (force_addr)
sis5595_base = force_addr & ~(SIS5595_EXTENT - 1);
dev_dbg(&SIS5595_dev->dev, "ACPI Base address: %04x\n", sis5595_base);
/* NB: We grab just the two SMBus registers here, but this may still
* interfere with ACPI :-( */
if (!request_region(sis5595_base + SMB_INDEX, 2, "sis5595-smbus")) {
dev_err(&SIS5595_dev->dev, "SMBus registers 0x%04x-0x%04x already in use!\n",
sis5595_base + SMB_INDEX, sis5595_base + SMB_INDEX + 1);
return -ENODEV;
}
if (force_addr) {
dev_info(&SIS5595_dev->dev, "forcing ISA address 0x%04X\n", sis5595_base);
if (!pci_write_config_word(SIS5595_dev, ACPI_BASE, sis5595_base))
goto error;
if (!pci_read_config_word(SIS5595_dev, ACPI_BASE, &a))
goto error;
if ((a & ~(SIS5595_EXTENT - 1)) != sis5595_base) {
/* doesn't work for some chips! */
dev_err(&SIS5595_dev->dev, "force address failed - not supported?\n");
goto error;
}
}
if (!pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val))
goto error;
if ((val & 0x80) == 0) {
dev_info(&SIS5595_dev->dev, "enabling ACPI\n");
if (!pci_write_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, val | 0x80))
goto error;
if (!pci_read_config_byte(SIS5595_dev, SIS5595_ENABLE_REG, &val))
goto error;
if ((val & 0x80) == 0) {
/* doesn't work for some chips? */
dev_err(&SIS5595_dev->dev, "ACPI enable failed - not supported?\n");
goto error;
}
}
/* Everything is happy */
return 0;
error:
release_region(sis5595_base + SMB_INDEX, 2);
return retval;
}
static int sis5595_transaction(struct i2c_adapter *adap)
{
int temp;
int result = 0;
int timeout = 0;
/* Make sure the SMBus host is ready to start transmitting */
temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8);
if (temp != 0x00) {
dev_dbg(&adap->dev, "SMBus busy (%04x). Resetting... \n", temp);
sis5595_write(SMB_STS_LO, temp & 0xff);
sis5595_write(SMB_STS_HI, temp >> 8);
if ((temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8)) != 0x00) {
dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
return -1;
} else {
dev_dbg(&adap->dev, "Successfull!\n");
}
}
/* start the transaction by setting bit 4 */
sis5595_write(SMB_CTL_LO, sis5595_read(SMB_CTL_LO) | 0x10);
/* We will always wait for a fraction of a second! */
do {
i2c_delay(1);
temp = sis5595_read(SMB_STS_LO);
} while (!(temp & 0x40) && (timeout++ < MAX_TIMEOUT));
/* If the SMBus is still busy, we give up */
if (timeout >= MAX_TIMEOUT) {
dev_dbg(&adap->dev, "SMBus Timeout!\n");
result = -1;
}
if (temp & 0x10) {
dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
result = -1;
}
if (temp & 0x20) {
dev_err(&adap->dev, "Bus collision! SMBus may be locked until "
"next hard reset (or not...)\n");
/* Clock stops and slave is stuck in mid-transmission */
result = -1;
}
temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8);
if (temp != 0x00) {
sis5595_write(SMB_STS_LO, temp & 0xff);
sis5595_write(SMB_STS_HI, temp >> 8);
}
temp = sis5595_read(SMB_STS_LO) + (sis5595_read(SMB_STS_HI) << 8);
if (temp != 0x00)
dev_dbg(&adap->dev, "Failed reset at end of transaction (%02x)\n", temp);
return result;
}
/* Return -1 on error. */
static s32 sis5595_access(struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write,
u8 command, int size, union i2c_smbus_data *data)
{
switch (size) {
case I2C_SMBUS_QUICK:
sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
size = SIS5595_QUICK;
break;
case I2C_SMBUS_BYTE:
sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
if (read_write == I2C_SMBUS_WRITE)
sis5595_write(SMB_CMD, command);
size = SIS5595_BYTE;
break;
case I2C_SMBUS_BYTE_DATA:
sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
sis5595_write(SMB_CMD, command);
if (read_write == I2C_SMBUS_WRITE)
sis5595_write(SMB_BYTE, data->byte);
size = SIS5595_BYTE_DATA;
break;
case I2C_SMBUS_PROC_CALL:
case I2C_SMBUS_WORD_DATA:
sis5595_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
sis5595_write(SMB_CMD, command);
if (read_write == I2C_SMBUS_WRITE) {
sis5595_write(SMB_BYTE, data->word & 0xff);
sis5595_write(SMB_BYTE + 1,
(data->word & 0xff00) >> 8);
}
size = (size == I2C_SMBUS_PROC_CALL) ? SIS5595_PROC_CALL : SIS5595_WORD_DATA;
break;
/*
case I2C_SMBUS_BLOCK_DATA:
printk("sis5595.o: Block data not yet implemented!\n");
return -1;
break;
*/
default:
printk
(KERN_WARNING "sis5595.o: Unsupported transaction %d\n", size);
return -1;
}
sis5595_write(SMB_CTL_LO, ((size & 0x0E)));
if (sis5595_transaction(adap))
return -1;
if ((size != SIS5595_PROC_CALL) &&
((read_write == I2C_SMBUS_WRITE) || (size == SIS5595_QUICK)))
return 0;
switch (size) {
case SIS5595_BYTE: /* Where is the result put? I assume here it is in
SMB_DATA but it might just as well be in the
SMB_CMD. No clue in the docs */
case SIS5595_BYTE_DATA:
data->byte = sis5595_read(SMB_BYTE);
break;
case SIS5595_WORD_DATA:
case SIS5595_PROC_CALL:
data->word = sis5595_read(SMB_BYTE) + (sis5595_read(SMB_BYTE + 1) << 8);
break;
}
return 0;
}
static u32 sis5595_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_PROC_CALL;
}
static struct i2c_algorithm smbus_algorithm = {
.name = "Non-I2C SMBus adapter",
.id = I2C_ALGO_SMBUS,
.smbus_xfer = sis5595_access,
.functionality = sis5595_func,
};
static struct i2c_adapter sis5595_adapter = {
.owner = THIS_MODULE,
.name = "unset",
.algo = &smbus_algorithm,
};
static struct pci_device_id sis5595_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) },
{ 0, }
};
static int __devinit sis5595_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
if (sis5595_setup(dev)) {
dev_err(&dev->dev, "SIS5595 not detected, module not inserted.\n");
return -ENODEV;
}
/* set up the driverfs linkage to our parent device */
sis5595_adapter.dev.parent = &dev->dev;
sprintf(sis5595_adapter.name, "SMBus SIS5595 adapter at %04x",
sis5595_base + SMB_INDEX);
return i2c_add_adapter(&sis5595_adapter);
}
static void __devexit sis5595_remove(struct pci_dev *dev)
{
i2c_del_adapter(&sis5595_adapter);
}
static struct pci_driver sis5595_driver = {
.name = "sis5595 smbus",
.id_table = sis5595_ids,
.probe = sis5595_probe,
.remove = __devexit_p(sis5595_remove),
};
static int __init i2c_sis5595_init(void)
{
printk(KERN_INFO "i2c-sis5595 version %s (%s)\n", I2C_VERSION, I2C_DATE);
return pci_module_init(&sis5595_driver);
}
static void __exit i2c_sis5595_exit(void)
{
pci_unregister_driver(&sis5595_driver);
release_region(sis5595_base + SMB_INDEX, 2);
}
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
MODULE_DESCRIPTION("SIS5595 SMBus driver");
MODULE_LICENSE("GPL");
module_init(i2c_sis5595_init);
module_exit(i2c_sis5595_exit);
drivers/i2c/busses/i2c-sis630.c 0 → 100644
View file @ 6c16fa73
/*
i2c-sis630.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 2002,2003 Alexander Malysh <amalysh@web.de>
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.
*/
/*
Changes:
24.08.2002
Fixed the typo in sis630_access (Thanks to Mark M. Hoffman)
Changed sis630_transaction.(Thanks to Mark M. Hoffman)
18.09.2002
Added SIS730 as supported
21.09.2002
Added high_clock module option.If this option is set
used Host Master Clock 56KHz (default 14KHz).For now we are save old Host
Master Clock and after transaction completed restore (otherwise
it's confuse BIOS and hung Machine).
24.09.2002
Fixed typo in sis630_access
Fixed logical error by restoring of Host Master Clock
31.07.2003
Added block data read/write support.
*/
/*
Status: beta
Supports:
SIS 630
SIS 730
Note: we assume there can only be one device, with one SMBus interface.
*/
/* #define DEBUG 1 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/i2c.h>
/* SIS630 SMBus registers */
#define SMB_STS 0x80 /* status */
#define SMB_EN 0x81 /* status enable */
#define SMB_CNT 0x82
#define SMBHOST_CNT 0x83
#define SMB_ADDR 0x84
#define SMB_CMD 0x85
#define SMB_PCOUNT 0x86 /* processed count */
#define SMB_COUNT 0x87
#define SMB_BYTE 0x88 /* ~0x8F data byte field */
#define SMBDEV_ADDR 0x90
#define SMB_DB0 0x91
#define SMB_DB1 0x92
#define SMB_SAA 0x93
/* register count for request_region */
#define SIS630_SMB_IOREGION 20
/* PCI address constants */
/* acpi base address register */
#define SIS630_ACPI_BASE_REG 0x74
/* bios control register */
#define SIS630_BIOS_CTL_REG 0x40
/* Other settings */
#define MAX_TIMEOUT 500
/* SIS630 constants */
#define SIS630_QUICK 0x00
#define SIS630_BYTE 0x01
#define SIS630_BYTE_DATA 0x02
#define SIS630_WORD_DATA 0x03
#define SIS630_PCALL 0x04
#define SIS630_BLOCK_DATA 0x05
/* insmod parameters */
static int high_clock = 0;
MODULE_PARM(high_clock, "i");
MODULE_PARM_DESC(high_clock, "Set Host Master Clock to 56KHz (default 14KHz).");
static unsigned short acpi_base = 0;
static inline u8 sis630_read(u8 reg)
{
return inb(acpi_base + reg);
}
static inline void sis630_write(u8 reg, u8 data)
{
outb(data, acpi_base + reg);
}
static int sis630_transaction_start(struct i2c_adapter *adap, int size, u8 *oldclock)
{
int temp;
/* Make sure the SMBus host is ready to start transmitting. */
if ((temp = sis630_read(SMB_CNT) & 0x03) != 0x00) {
dev_dbg(&adap->dev, "SMBus busy (%02x).Resetting...\n",temp);
/* kill smbus transaction */
sis630_write(SMBHOST_CNT, 0x20);
if ((temp = sis630_read(SMB_CNT) & 0x03) != 0x00) {
dev_dbg(&adap->dev, "Failed! (%02x)\n", temp);
return -1;
} else {
dev_dbg(&adap->dev, "Successfull!\n");
}
}
/* save old clock, so we can prevent machine for hung */
*oldclock = sis630_read(SMB_CNT);
dev_dbg(&adap->dev, "saved clock 0x%02x\n", *oldclock);
/* disable timeout interrupt , set Host Master Clock to 56KHz if requested */
if (high_clock > 0)
sis630_write(SMB_CNT, 0x20);
else
sis630_write(SMB_CNT, (*oldclock & ~0x40));
/* clear all sticky bits */
temp = sis630_read(SMB_STS);
sis630_write(SMB_STS, temp & 0x1e);
/* start the transaction by setting bit 4 and size */
sis630_write(SMBHOST_CNT,0x10 | (size & 0x07));
return 0;
}
static int sis630_transaction_wait(struct i2c_adapter *adap, int size)
{
int temp, result = 0, timeout = 0;
/* We will always wait for a fraction of a second! */
do {
i2c_delay(1);
temp = sis630_read(SMB_STS);
/* check if block transmitted */
if (size == SIS630_BLOCK_DATA && (temp & 0x10))
break;
} while (!(temp & 0x0e) && (timeout++ < MAX_TIMEOUT));
/* If the SMBus is still busy, we give up */
if (timeout >= MAX_TIMEOUT) {
dev_dbg(&adap->dev, "SMBus Timeout!\n");
result = -1;
}
if (temp & 0x02) {
dev_dbg(&adap->dev, "Error: Failed bus transaction\n");
result = -1;
}
if (temp & 0x04) {
dev_err(&adap->dev, "Bus collision!\n");
result = -1;
/*
TBD: Datasheet say:
the software should clear this bit and restart SMBUS operation.
Should we do it or user start request again?
*/
}
return result;
}
static void sis630_transaction_end(struct i2c_adapter *adap, u8 oldclock)
{
int temp = 0;
/* clear all status "sticky" bits */
sis630_write(SMB_STS, temp);
dev_dbg(&adap->dev, "SMB_CNT before clock restore 0x%02x\n", sis630_read(SMB_CNT));
/*
* restore old Host Master Clock if high_clock is set
* and oldclock was not 56KHz
*/
if (high_clock > 0 && !(oldclock & 0x20))
sis630_write(SMB_CNT,(sis630_read(SMB_CNT) & ~0x20));
dev_dbg(&adap->dev, "SMB_CNT after clock restore 0x%02x\n", sis630_read(SMB_CNT));
}
static int sis630_transaction(struct i2c_adapter *adap, int size)
{
int result = 0;
u8 oldclock = 0;
result = sis630_transaction_start(adap, size, &oldclock);
if (!result) {
result = sis630_transaction_wait(adap, size);
sis630_transaction_end(adap, oldclock);
}
return result;
}
static int sis630_block_data(struct i2c_adapter *adap, union i2c_smbus_data *data, int read_write)
{
int i, len = 0, rc = 0;
u8 oldclock = 0;
if (read_write == I2C_SMBUS_WRITE) {
len = data->block[0];
if (len < 0)
len = 0;
else if (len > 32)
len = 32;
sis630_write(SMB_COUNT, len);
for (i=1; i <= len; i++) {
dev_dbg(&adap->dev, "set data 0x%02x\n", data->block[i]);
/* set data */
sis630_write(SMB_BYTE+(i-1)%8, data->block[i]);
if (i==8 || (len<8 && i==len)) {
dev_dbg(&adap->dev, "start trans len=%d i=%d\n",len ,i);
/* first transaction */
if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock))
return -1;
}
else if ((i-1)%8 == 7 || i==len) {
dev_dbg(&adap->dev, "trans_wait len=%d i=%d\n",len,i);
if (i>8) {
dev_dbg(&adap->dev, "clear smbary_sts len=%d i=%d\n",len,i);
/*
If this is not first transaction,
we must clear sticky bit.
clear SMBARY_STS
*/
sis630_write(SMB_STS,0x10);
}
if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
dev_dbg(&adap->dev, "trans_wait failed\n");
rc = -1;
break;
}
}
}
}
else {
/* read request */
data->block[0] = len = 0;
if (sis630_transaction_start(adap, SIS630_BLOCK_DATA, &oldclock)) {
return -1;
}
do {
if (sis630_transaction_wait(adap, SIS630_BLOCK_DATA)) {
dev_dbg(&adap->dev, "trans_wait failed\n");
rc = -1;
break;
}
/* if this first transaction then read byte count */
if (len == 0)
data->block[0] = sis630_read(SMB_COUNT);
dev_dbg(&adap->dev, "block data read len=0x%x\n", data->block[0]);
for (i=0; i < 8 && len < data->block[0]; i++,len++) {
dev_dbg(&adap->dev, "read i=%d len=%d\n", i, len);
data->block[len+1] = sis630_read(SMB_BYTE+i);
}
dev_dbg(&adap->dev, "clear smbary_sts len=%d i=%d\n",len,i);
/* clear SMBARY_STS */
sis630_write(SMB_STS,0x10);
} while(len < data->block[0]);
}
sis630_transaction_end(adap, oldclock);
return rc;
}
/* Return -1 on error. */
static s32 sis630_access(struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write,
u8 command, int size, union i2c_smbus_data *data)
{
switch (size) {
case I2C_SMBUS_QUICK:
sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
size = SIS630_QUICK;
break;
case I2C_SMBUS_BYTE:
sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
if (read_write == I2C_SMBUS_WRITE)
sis630_write(SMB_CMD, command);
size = SIS630_BYTE;
break;
case I2C_SMBUS_BYTE_DATA:
sis630_write(SMB_ADDR, ((addr & 0x7f) << 1) | (read_write & 0x01));
sis630_write(SMB_CMD, command);
if (read_write == I2C_SMBUS_WRITE)
sis630_write(SMB_BYTE, data->byte);
size = SIS630_BYTE_DATA;
break;
case I2C_SMBUS_PROC_CALL:
case I2C_SMBUS_WORD_DATA:
sis630_write(SMB_ADDR,((addr & 0x7f) << 1) | (read_write & 0x01));
sis630_write(SMB_CMD, command);
if (read_write == I2C_SMBUS_WRITE) {
sis630_write(SMB_BYTE, data->word & 0xff);
sis630_write(SMB_BYTE + 1,(data->word & 0xff00) >> 8);
}
size = (size == I2C_SMBUS_PROC_CALL ? SIS630_PCALL : SIS630_WORD_DATA);
break;
case I2C_SMBUS_BLOCK_DATA:
sis630_write(SMB_ADDR,((addr & 0x7f) << 1) | (read_write & 0x01));
sis630_write(SMB_CMD, command);
size = SIS630_BLOCK_DATA;
return sis630_block_data(adap, data, read_write);
default:
printk("Unsupported I2C size\n");
return -1;
break;
}
if (sis630_transaction(adap, size))
return -1;
if ((size != SIS630_PCALL) &&
((read_write == I2C_SMBUS_WRITE) || (size == SIS630_QUICK))) {
return 0;
}
switch(size) {
case SIS630_BYTE:
case SIS630_BYTE_DATA:
data->byte = sis630_read(SMB_BYTE);
break;
case SIS630_PCALL:
case SIS630_WORD_DATA:
data->word = sis630_read(SMB_BYTE) + (sis630_read(SMB_BYTE + 1) << 8);
break;
default:
return -1;
break;
}
return 0;
}
static u32 sis630_func(struct i2c_adapter *adapter)
{
return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_PROC_CALL |
I2C_FUNC_SMBUS_BLOCK_DATA;
}
static int sis630_setup(struct pci_dev *dummy)
{
unsigned char b;
struct pci_dev *sis630_dev = NULL;
int retval = -ENODEV;
/* We need ISA bridge and not pci device passed in. */
sis630_dev = pci_get_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, sis630_dev);
if (!sis630_dev) {
dev_err(&dummy->dev, "Error: Can't detect 85C503/5513 ISA bridge!\n");
return -ENODEV;
}
/*
Enable ACPI first , so we can accsess reg 74-75
in acpi io space and read acpi base addr
*/
if (!pci_read_config_byte(sis630_dev, SIS630_BIOS_CTL_REG,&b)) {
dev_err(&sis630_dev->dev, "Error: Can't read bios ctl reg\n");
goto exit;
}
/* if ACPI already enabled , do nothing */
if (!(b & 0x80) &&
!pci_write_config_byte(sis630_dev, SIS630_BIOS_CTL_REG, b | 0x80)) {
dev_err(&sis630_dev->dev, "Error: Can't enable ACPI\n");
goto exit;
}
/* Determine the ACPI base address */
if (!pci_read_config_word(sis630_dev,SIS630_ACPI_BASE_REG,&acpi_base)) {
dev_err(&sis630_dev->dev, "Error: Can't determine ACPI base address\n");
goto exit;
}
dev_dbg(&sis630_dev->dev, "ACPI base at 0x%04x\n", acpi_base);
/* Everything is happy, let's grab the memory and set things up. */
if (!request_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION, "sis630-smbus")) {
dev_err(&sis630_dev->dev, "SMBus registers 0x%04x-0x%04x already "
"in use!\n", acpi_base + SMB_STS, acpi_base + SMB_SAA);
goto exit;
}
retval = 0;
exit:
pci_dev_put(sis630_dev);
return retval;
}
static struct i2c_algorithm smbus_algorithm = {
.name = "Non-I2C SMBus adapter",
.id = I2C_ALGO_SMBUS,
.smbus_xfer = sis630_access,
.functionality = sis630_func,
};
static struct i2c_adapter sis630_adapter = {
.owner = THIS_MODULE,
.name = "unset",
.algo = &smbus_algorithm,
};
static struct pci_device_id sis630_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_630) },
{ PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_730) },
{ 0, }
};
static int __devinit sis630_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
if (sis630_setup(dev)) {
dev_err(&dev->dev, "SIS630 comp. bus not detected, module not inserted.\n");
return -ENODEV;
}
/* set up the driverfs linkage to our parent device */
sis630_adapter.dev.parent = &dev->dev;
sprintf(sis630_adapter.name, "SMBus SIS630 adapter at %04x",
acpi_base + SMB_STS);
return i2c_add_adapter(&sis630_adapter);
}
static void __devexit sis630_remove(struct pci_dev *dev)
{
i2c_del_adapter(&sis630_adapter);
}
static struct pci_driver sis630_driver = {
.name = "sis630 smbus",
.id_table = sis630_ids,
.probe = sis630_probe,
.remove = __devexit_p(sis630_remove),
};
static int __init i2c_sis630_init(void)
{
printk("i2c-sis630.o version %s (%s)\n", I2C_VERSION, I2C_DATE);
return pci_module_init(&sis630_driver);
}
static void __exit i2c_sis630_exit(void)
{
pci_unregister_driver(&sis630_driver);
release_region(acpi_base + SMB_STS, SIS630_SMB_IOREGION);
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alexander Malysh <amalysh@web.de>");
MODULE_DESCRIPTION("SIS630 SMBus driver");
module_init(i2c_sis630_init);
module_exit(i2c_sis630_exit);
drivers/i2c/busses/i2c-sis96x.c
View file @ 6c16fa73
......@@ -261,7 +261,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter sis96x_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_SIS96X,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -318,7 +317,7 @@ static int __devinit sis96x_probe(struct pci_dev *dev,
/* set up the driverfs linkage to our parent device */
sis96x_adapter.dev.parent = &dev->dev;
snprintf(sis96x_adapter.name, DEVICE_NAME_SIZE,
snprintf(sis96x_adapter.name, I2C_NAME_SIZE,
"SiS96x SMBus adapter at 0x%04x", sis96x_smbus_base);
if ((retval = i2c_add_adapter(&sis96x_adapter))) {
......
drivers/i2c/i2c-velleman.c → drivers/i2c/busses/i2c-velleman.c
View file @ 6c16fa73
......@@ -114,7 +114,6 @@ static struct i2c_algo_bit_data bit_velle_data = {
static struct i2c_adapter bit_velle_ops = {
.owner = THIS_MODULE,
.id = I2C_HW_B_VELLE,
.algo_data = &bit_velle_data,
.name = "Velleman K8000",
};
......
drivers/i2c/busses/i2c-via.c 0 → 100644
View file @ 6c16fa73
/*
i2c-via.c - Part of lm_sensors, Linux kernel modules
for hardware monitoring
i2c Support for Via Technologies 82C586B South Bridge
Copyright (c) 1998, 1999 Kysti Mlkki <kmalkki@cc.hut.fi>
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.
*/
#define DEBUG
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
/* Power management registers */
#define PM_CFG_REVID 0x08 /* silicon revision code */
#define PM_CFG_IOBASE0 0x20
#define PM_CFG_IOBASE1 0x48
#define I2C_DIR (pm_io_base+0x40)
#define I2C_OUT (pm_io_base+0x42)
#define I2C_IN (pm_io_base+0x44)
#define I2C_SCL 0x02 /* clock bit in DIR/OUT/IN register */
#define I2C_SDA 0x04
/* io-region reservation */
#define IOSPACE 0x06
#define IOTEXT "via-i2c"
static u16 pm_io_base = 0;
/*
It does not appear from the datasheet that the GPIO pins are
open drain. So a we set a low value by setting the direction to
output and a high value by setting the direction to input and
relying on the required I2C pullup. The data value is initialized
to 0 in via_init() and never changed.
*/
static void bit_via_setscl(void *data, int state)
{
outb(state ? inb(I2C_DIR) & ~I2C_SCL : inb(I2C_DIR) | I2C_SCL, I2C_DIR);
}
static void bit_via_setsda(void *data, int state)
{
outb(state ? inb(I2C_DIR) & ~I2C_SDA : inb(I2C_DIR) | I2C_SDA, I2C_DIR);
}
static int bit_via_getscl(void *data)
{
return (0 != (inb(I2C_IN) & I2C_SCL));
}
static int bit_via_getsda(void *data)
{
return (0 != (inb(I2C_IN) & I2C_SDA));
}
static struct i2c_algo_bit_data bit_data = {
.setsda = bit_via_setsda,
.setscl = bit_via_setscl,
.getsda = bit_via_getsda,
.getscl = bit_via_getscl,
.udelay = 5,
.mdelay = 5,
.timeout = HZ
};
static struct i2c_adapter vt586b_adapter = {
.owner = THIS_MODULE,
.name = "VIA i2c",
.algo_data = &bit_data,
};
static struct pci_device_id vt586b_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3) },
{ 0, }
};
static int __devinit vt586b_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
u16 base;
u8 rev;
int res;
if (pm_io_base) {
dev_err(&dev->dev, "i2c-via: Will only support one host\n");
return -ENODEV;
}
pci_read_config_byte(dev, PM_CFG_REVID, &rev);
switch (rev) {
case 0x00:
base = PM_CFG_IOBASE0;
break;
case 0x01:
case 0x10:
base = PM_CFG_IOBASE1;
break;
default:
base = PM_CFG_IOBASE1;
/* later revision */
}
pci_read_config_word(dev, base, &pm_io_base);
pm_io_base &= (0xff << 8);
if (!request_region(I2C_DIR, IOSPACE, IOTEXT)) {
dev_err(&dev->dev, "IO 0x%x-0x%x already in use\n", I2C_DIR, I2C_DIR + IOSPACE);
return -ENODEV;
}
outb(inb(I2C_DIR) & ~(I2C_SDA | I2C_SCL), I2C_DIR);
outb(inb(I2C_OUT) & ~(I2C_SDA | I2C_SCL), I2C_OUT);
/* set up the driverfs linkage to our parent device */
vt586b_adapter.dev.parent = &dev->dev;
res = i2c_bit_add_bus(&vt586b_adapter);
if ( res < 0 ) {
release_region(I2C_DIR, IOSPACE);
pm_io_base = 0;
return res;
}
return 0;
}
static void __devexit vt586b_remove(struct pci_dev *dev)
{
i2c_bit_del_bus(&vt586b_adapter);
release_region(I2C_DIR, IOSPACE);
pm_io_base = 0;
}
static struct pci_driver vt586b_driver = {
.name = "vt586b smbus",
.id_table = vt586b_ids,
.probe = vt586b_probe,
.remove = __devexit_p(vt586b_remove),
};
static int __init i2c_vt586b_init(void)
{
printk(KERN_INFO "i2c-via version %s (%s)\n", I2C_VERSION, I2C_DATE);
return pci_module_init(&vt586b_driver);
}
static void __exit i2c_vt586b_exit(void)
{
pci_unregister_driver(&vt586b_driver);
}
MODULE_AUTHOR("Kysti Mlkki <kmalkki@cc.hut.fi>");
MODULE_DESCRIPTION("i2c for Via vt82c586b southbridge");
MODULE_LICENSE("GPL");
module_init(i2c_vt586b_init);
module_exit(i2c_vt586b_exit);
drivers/i2c/busses/i2c-viapro.c
View file @ 6c16fa73
......@@ -287,7 +287,6 @@ static struct i2c_algorithm smbus_algorithm = {
static struct i2c_adapter vt596_adapter = {
.owner = THIS_MODULE,
.id = I2C_ALGO_SMBUS | I2C_HW_SMBUS_VIA2,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &smbus_algorithm,
.name = "unset",
......@@ -376,7 +375,7 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
dev_dbg(&pdev->dev, "VT596_smba = 0x%X\n", vt596_smba);
vt596_adapter.dev.parent = &pdev->dev;
snprintf(vt596_adapter.name, DEVICE_NAME_SIZE,
snprintf(vt596_adapter.name, I2C_NAME_SIZE,
"SMBus Via Pro adapter at %04x", vt596_smba);
return i2c_add_adapter(&vt596_adapter);
......
drivers/i2c/busses/i2c-voodoo3.c 0 → 100644
View file @ 6c16fa73
/*
voodoo3.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
Ralph Metzler <rjkm@thp.uni-koeln.de>, and
Mark D. Studebaker <mdsxyz123@yahoo.com>
Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
Simon Vogl
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.
*/
/* This interfaces to the I2C bus of the Voodoo3 to gain access to
the BT869 and possibly other I2C devices. */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
/* the only registers we use */
#define REG 0x78
#define REG2 0x70
/* bit locations in the register */
#define DDC_ENAB 0x00040000
#define DDC_SCL_OUT 0x00080000
#define DDC_SDA_OUT 0x00100000
#define DDC_SCL_IN 0x00200000
#define DDC_SDA_IN 0x00400000
#define I2C_ENAB 0x00800000
#define I2C_SCL_OUT 0x01000000
#define I2C_SDA_OUT 0x02000000
#define I2C_SCL_IN 0x04000000
#define I2C_SDA_IN 0x08000000
/* initialization states */
#define INIT2 0x2
#define INIT3 0x4
/* delays */
#define CYCLE_DELAY 10
#define TIMEOUT (HZ / 2)
static void *ioaddr;
/* The voo GPIO registers don't have individual masks for each bit
so we always have to read before writing. */
static void bit_vooi2c_setscl(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if (val)
r |= I2C_SCL_OUT;
else
r &= ~I2C_SCL_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
static void bit_vooi2c_setsda(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if (val)
r |= I2C_SDA_OUT;
else
r &= ~I2C_SDA_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
/* The GPIO pins are open drain, so the pins always remain outputs.
We rely on the i2c-algo-bit routines to set the pins high before
reading the input from other chips. */
static int bit_vooi2c_getscl(void *data)
{
return (0 != (readl(ioaddr + REG) & I2C_SCL_IN));
}
static int bit_vooi2c_getsda(void *data)
{
return (0 != (readl(ioaddr + REG) & I2C_SDA_IN));
}
static void bit_vooddc_setscl(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if (val)
r |= DDC_SCL_OUT;
else
r &= ~DDC_SCL_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
static void bit_vooddc_setsda(void *data, int val)
{
unsigned int r;
r = readl(ioaddr + REG);
if (val)
r |= DDC_SDA_OUT;
else
r &= ~DDC_SDA_OUT;
writel(r, ioaddr + REG);
readl(ioaddr + REG); /* flush posted write */
}
static int bit_vooddc_getscl(void *data)
{
return (0 != (readl(ioaddr + REG) & DDC_SCL_IN));
}
static int bit_vooddc_getsda(void *data)
{
return (0 != (readl(ioaddr + REG) & DDC_SDA_IN));
}
static int config_v3(struct pci_dev *dev)
{
unsigned int cadr;
/* map Voodoo3 memory */
cadr = dev->resource[0].start;
cadr &= PCI_BASE_ADDRESS_MEM_MASK;
ioaddr = ioremap_nocache(cadr, 0x1000);
if (ioaddr) {
writel(0x8160, ioaddr + REG2);
writel(0xcffc0020, ioaddr + REG);
dev_info(&dev->dev, "Using Banshee/Voodoo3 I2C device at %p\n", ioaddr);
return 0;
}
return -ENODEV;
}
static struct i2c_algo_bit_data voo_i2c_bit_data = {
.setsda = bit_vooi2c_setsda,
.setscl = bit_vooi2c_setscl,
.getsda = bit_vooi2c_getsda,
.getscl = bit_vooi2c_getscl,
.udelay = CYCLE_DELAY,
.mdelay = CYCLE_DELAY,
.timeout = TIMEOUT
};
static struct i2c_adapter voodoo3_i2c_adapter = {
.owner = THIS_MODULE,
.name = "I2C Voodoo3/Banshee adapter",
.algo_data = &voo_i2c_bit_data,
};
static struct i2c_algo_bit_data voo_ddc_bit_data = {
.setsda = bit_vooddc_setsda,
.setscl = bit_vooddc_setscl,
.getsda = bit_vooddc_getsda,
.getscl = bit_vooddc_getscl,
.udelay = CYCLE_DELAY,
.mdelay = CYCLE_DELAY,
.timeout = TIMEOUT
};
static struct i2c_adapter voodoo3_ddc_adapter = {
.owner = THIS_MODULE,
.name = "DDC Voodoo3/Banshee adapter",
.algo_data = &voo_ddc_bit_data,
};
static struct pci_device_id voodoo3_ids[] __devinitdata = {
{ PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO3) },
{ PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE) },
{ 0, }
};
static int __devinit voodoo3_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
int retval;
retval = config_v3(dev);
if (retval)
return retval;
/* set up the sysfs linkage to our parent device */
voodoo3_i2c_adapter.dev.parent = &dev->dev;
voodoo3_ddc_adapter.dev.parent = &dev->dev;
retval = i2c_bit_add_bus(&voodoo3_i2c_adapter);
if (retval)
return retval;
retval = i2c_bit_add_bus(&voodoo3_ddc_adapter);
if (retval)
i2c_bit_del_bus(&voodoo3_i2c_adapter);
return retval;
}
static void __devexit voodoo3_remove(struct pci_dev *dev)
{
i2c_bit_del_bus(&voodoo3_i2c_adapter);
i2c_bit_del_bus(&voodoo3_ddc_adapter);
iounmap(ioaddr);
}
static struct pci_driver voodoo3_driver = {
.name = "voodoo3 smbus",
.id_table = voodoo3_ids,
.probe = voodoo3_probe,
.remove = __devexit_p(voodoo3_remove),
};
static int __init i2c_voodoo3_init(void)
{
return pci_module_init(&voodoo3_driver);
}
static void __exit i2c_voodoo3_exit(void)
{
pci_unregister_driver(&voodoo3_driver);
}
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
"Philip Edelbrock <phil@netroedge.com>, "
"Ralph Metzler <rjkm@thp.uni-koeln.de>, "
"and Mark D. Studebaker <mdsxyz123@yahoo.com>");
MODULE_DESCRIPTION("Voodoo3 I2C/SMBus driver");
MODULE_LICENSE("GPL");
module_init(i2c_voodoo3_init);
module_exit(i2c_voodoo3_exit);
drivers/i2c/scx200_acb.c → drivers/i2c/busses/scx200_acb.c
View file @ 6c16fa73
......@@ -456,7 +456,7 @@ static int __init scx200_acb_create(int base, int index)
memset(iface, 0, sizeof(*iface));
adapter = &iface->adapter;
i2c_set_adapdata(adapter, iface);
snprintf(adapter->name, DEVICE_NAME_SIZE, "SCx200 ACB%d", index);
snprintf(adapter->name, I2C_NAME_SIZE, "SCx200 ACB%d", index);
adapter->owner = THIS_MODULE;
adapter->id = I2C_ALGO_SMBUS;
adapter->algo = &scx200_acb_algorithm;
......
drivers/i2c/scx200_i2c.c → drivers/i2c/busses/scx200_i2c.c
View file @ 6c16fa73
......@@ -82,7 +82,6 @@ static struct i2c_algo_bit_data scx200_i2c_data = {
static struct i2c_adapter scx200_i2c_ops = {
.owner = THIS_MODULE,
.id = I2C_HW_B_VELLE,
.algo_data = &scx200_i2c_data,
.name = "NatSemi SCx200 I2C",
};
......
drivers/i2c/chips/Kconfig
View file @ 6c16fa73
#
# Sensor device configuration
# All depend on EXPERIMENTAL and I2C
# I2C Sensor device configuration
#
menu "I2C Hardware Sensors Chip support"
config I2C_SENSOR
tristate
default n
config SENSORS_ADM1021
tristate " Analog Devices ADM1021 and compatibles"
tristate "Analog Devices ADM1021 and compatibles"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for Analog Devices ADM1021
and ADM1023 sensor chips and clones: Maxim MAX1617 and MAX1617A,
Genesys Logic GL523SM, National Semi LM84, TI THMC10,
and the XEON processor built-in sensor. This can also
be built as a module which can be inserted and removed while the
kernel is running.
The module will be called adm1021.
and the XEON processor built-in sensor.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called adm1021.
config SENSORS_IT87
tristate " National Semiconductors IT87 and compatibles"
tristate "National Semiconductors IT87 and compatibles"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
The module will be called it87.
If you say yes here you get support for National Semiconductor IT87
sensor chips and clones: IT8705F, IT8712F and SiS960.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called it87.
config SENSORS_LM75
tristate " National Semiconductors LM75 and compatibles"
tristate "National Semiconductors LM75 and compatibles"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for National Semiconductor LM75
sensor chips and clones: Dallas Semi DS75 and DS1775, TelCon
TCN75, and National Semi LM77. This can also be built as a module
which can be inserted and removed while the kernel is running.
The module will be called lm75.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
config SENSORS_LM85
tristate " National Semiconductors LM85 and compatibles"
depends on I2C && EXPERIMENTAL
help
If you say yes here you get support for National Semiconductor LM85
sensor chips and clones: ADT7463 and ADM1027.
This can also be built as a module which can be inserted and
removed while the kernel is running.
The module will be called lm85.
TCN75, and National Semi LM77.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called lm75.
config SENSORS_LM78
tristate " National Semiconductors LM78 and compatibles"
tristate "National Semiconductors LM78 and compatibles"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for National Semiconductor LM78,
LM78-J and LM79. This can also be built as a module which can be
inserted and removed while the kernel is running.
The module will be called lm78.
This driver can also be built as a module. If so, the module
will be called lm78.
config SENSORS_LM85
tristate "National Semiconductors LM85 and compatibles"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for National Semiconductor LM85
sensor chips and clones: ADT7463 and ADM1027.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called lm85.
config SENSORS_VIA686A
tristate " VIA686A"
tristate "VIA686A"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
support for via686a
If you say yes here you get support for the integrated sensors in
Via 686A/B South Bridges. This can also be built as a module
which can be inserted and removed while the kernel is running.
Via 686A/B South Bridges.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
This driver can also be built as a module. If so, the module
will be called via686a.
config SENSORS_W83781D
tristate " Winbond W83781D, W83782D, W83783S, W83627HF, Asus AS99127F"
tristate "Winbond W83781D, W83782D, W83783S, W83627HF, Asus AS99127F"
depends on I2C && EXPERIMENTAL
select I2C_SENSOR
help
If you say yes here you get support for the Winbond W8378x series
of sensor chips: the W83781D, W83782D, W83783S and W83682HF,
and the similar Asus AS99127F. This
can also be built as a module which can be inserted and removed
while the kernel is running.
You will also need the latest user-space utilties: you can find them
in the lm_sensors package, which you can download at
http://www.lm-sensors.nu
and the similar Asus AS99127F.
config I2C_SENSOR
tristate
default y if SENSORS_ADM1021=y || SENSORS_IT87=y || SENSORS_LM75=y || SENSORS_VIA686A=y || SENSORS_W83781D=y || SENSORS_LM85=y
default m if SENSORS_ADM1021=m || SENSORS_IT87=m || SENSORS_LM75=m || SENSORS_VIA686A=m || SENSORS_W83781D=m || SENSORS_LM85=m
default n
This driver can also be built as a module. If so, the module
will be called w83781d.
endmenu
drivers/i2c/chips/adm1021.c
View file @ 6c16fa73
......@@ -225,7 +225,6 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
struct adm1021_data *data;
int err = 0;
const char *type_name = "";
const char *client_name = "";
/* Make sure we aren't probing the ISA bus!! This is just a safety check
at this moment; i2c_detect really won't call us. */
......@@ -291,28 +290,20 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
if (kind == max1617) {
type_name = "max1617";
client_name = "MAX1617 chip";
} else if (kind == max1617a) {
type_name = "max1617a";
client_name = "MAX1617A chip";
} else if (kind == adm1021) {
type_name = "adm1021";
client_name = "ADM1021 chip";
} else if (kind == adm1023) {
type_name = "adm1023";
client_name = "ADM1023 chip";
} else if (kind == thmc10) {
type_name = "thmc10";
client_name = "THMC10 chip";
} else if (kind == lm84) {
type_name = "lm84";
client_name = "LM84 chip";
} else if (kind == gl523sm) {
type_name = "gl523sm";
client_name = "GL523SM chip";
} else if (kind == mc1066) {
type_name = "mc1066";
client_name = "MC1066 chip";
} else {
dev_err(&adapter->dev, "Internal error: unknown kind (%d)?!?",
kind);
......@@ -320,7 +311,7 @@ static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Fill in the remaining client fields and put it into the global list */
strlcpy(new_client->name, client_name, DEVICE_NAME_SIZE);
strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
data->type = kind;
new_client->id = adm1021_id++;
......
drivers/i2c/chips/it87.c
View file @ 6c16fa73
......@@ -592,7 +592,6 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
struct it87_data *data;
int err = 0;
const char *name = "";
const char *client_name = "";
int is_isa = i2c_is_isa_adapter(adapter);
if (!is_isa &&
......@@ -681,10 +680,8 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
if (kind == it87) {
name = "it87";
client_name = "IT87 chip";
} /* else if (kind == it8712) {
name = "it8712";
client_name = "IT87-J chip";
} */ else {
dev_dbg(&adapter->dev, "Internal error: unknown kind (%d)?!?",
kind);
......@@ -692,7 +689,7 @@ int it87_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Fill in the remaining client fields and put it into the global list */
strlcpy(new_client->name, name, DEVICE_NAME_SIZE);
strlcpy(new_client->name, name, I2C_NAME_SIZE);
data->type = kind;
......
drivers/i2c/chips/lm75.c
View file @ 6c16fa73
......@@ -194,7 +194,7 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Fill in the remaining client fields and put it into the global list */
strlcpy(new_client->name, name, DEVICE_NAME_SIZE);
strlcpy(new_client->name, name, I2C_NAME_SIZE);
new_client->id = lm75_id++;
data->valid = 0;
......
drivers/i2c/chips/lm78.c
View file @ 6c16fa73
......@@ -625,11 +625,11 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
}
if (kind == lm78) {
client_name = "LM78 chip";
client_name = "lm78";
} else if (kind == lm78j) {
client_name = "LM78-J chip";
client_name = "lm78-j";
} else if (kind == lm79) {
client_name = "LM79 chip";
client_name = "lm79";
} else {
dev_dbg(&adapter->dev, "Internal error: unknown kind (%d)?!?",
kind);
......@@ -638,7 +638,7 @@ int lm78_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Fill in the remaining client fields and put into the global list */
strlcpy(new_client->name, client_name, DEVICE_NAME_SIZE);
strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
......
drivers/i2c/chips/lm85.c
View file @ 6c16fa73
......@@ -853,24 +853,20 @@ int lm85_detect(struct i2c_adapter *adapter, int address,
/* Fill in the chip specific driver values */
if ( kind == any_chip ) {
type_name = "lm85";
strlcpy(new_client->name, "Generic LM85", DEVICE_NAME_SIZE);
} else if ( kind == lm85b ) {
type_name = "lm85b";
strlcpy(new_client->name, "National LM85-B", DEVICE_NAME_SIZE);
} else if ( kind == lm85c ) {
type_name = "lm85c";
strlcpy(new_client->name, "National LM85-C", DEVICE_NAME_SIZE);
} else if ( kind == adm1027 ) {
type_name = "adm1027";
strlcpy(new_client->name, "Analog Devices ADM1027", DEVICE_NAME_SIZE);
} else if ( kind == adt7463 ) {
type_name = "adt7463";
strlcpy(new_client->name, "Analog Devices ADT7463", DEVICE_NAME_SIZE);
} else {
dev_dbg(&adapter->dev, "Internal error, invalid kind (%d)!", kind);
err = -EFAULT ;
goto ERROR1;
}
strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
/* Fill in the remaining client fields */
new_client->id = lm85_id++;
......
drivers/i2c/chips/via686a.c
View file @ 6c16fa73
......@@ -671,7 +671,7 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
struct i2c_client *new_client;
struct via686a_data *data;
int err = 0;
const char client_name[] = "via686a chip";
const char client_name[] = "via686a";
u16 val;
/* Make sure we are probing the ISA bus!! */
......@@ -727,7 +727,7 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
new_client->dev.parent = &adapter->dev;
/* Fill in the remaining client fields and put into the global list */
snprintf(new_client->name, DEVICE_NAME_SIZE, client_name);
snprintf(new_client->name, I2C_NAME_SIZE, client_name);
data->valid = 0;
init_MUTEX(&data->update_lock);
......
drivers/i2c/chips/w83781d.c
View file @ 6c16fa73
......@@ -378,8 +378,8 @@ static ssize_t store_in_##reg (struct device *dev, const char *buf, size_t count
struct w83781d_data *data = i2c_get_clientdata(client); \
u32 val; \
\
val = simple_strtoul(buf, NULL, 10); \
data->in_##reg[nr] = (IN_TO_REG(val) / 10); \
val = simple_strtoul(buf, NULL, 10) / 10; \
data->in_##reg[nr] = IN_TO_REG(val); \
w83781d_write_value(client, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
\
return count; \
......@@ -1098,15 +1098,15 @@ w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
}
if (kind == w83781d)
client_name = "W83781D subclient";
client_name = "w83781d subclient";
else if (kind == w83782d)
client_name = "W83782D subclient";
client_name = "w83782d subclient";
else if (kind == w83783s)
client_name = "W83783S subclient";
client_name = "w83783s subclient";
else if (kind == w83627hf)
client_name = "W83627HF subclient";
client_name = "w83627hf subclient";
else if (kind == as99127f)
client_name = "AS99127F subclient";
client_name = "as99127f subclient";
else
client_name = "unknown subclient?";
......@@ -1117,7 +1117,7 @@ w83781d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
data->lm75[i]->driver = &w83781d_driver;
data->lm75[i]->flags = 0;
strlcpy(data->lm75[i]->name, client_name,
DEVICE_NAME_SIZE);
I2C_NAME_SIZE);
if ((err = i2c_attach_client(data->lm75[i]))) {
dev_err(&new_client->dev, "Subclient %d "
"registration at address 0x%x "
......@@ -1304,20 +1304,20 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
}
if (kind == w83781d) {
client_name = "W83781D chip";
client_name = "w83781d";
} else if (kind == w83782d) {
client_name = "W83782D chip";
client_name = "w83782d";
} else if (kind == w83783s) {
client_name = "W83783S chip";
client_name = "w83783s";
} else if (kind == w83627hf) {
if (val1 == 0x90)
client_name = "W83627THF chip";
client_name = "w83627thf";
else
client_name = "W83627HF chip";
client_name = "w83627hf";
} else if (kind == as99127f) {
client_name = "AS99127F chip";
client_name = "as99127f";
} else if (kind == w83697hf) {
client_name = "W83697HF chip";
client_name = "w83697hf";
} else {
dev_err(&new_client->dev, "Internal error: unknown "
"kind (%d)?!?", kind);
......@@ -1326,7 +1326,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* Fill in the remaining client fields and put into the global list */
strlcpy(new_client->name, client_name, DEVICE_NAME_SIZE);
strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
......
drivers/i2c/i2c-algo-ibm_ocp.c deleted 100644 → 0
View file @ 8912ad07
/*
-------------------------------------------------------------------------
i2c-algo-ibm_ocp.c i2c driver algorithms for IBM PPC 405 adapters
-------------------------------------------------------------------------
Ian DaSilva, MontaVista Software, Inc.
idasilva@mvista.com or source@mvista.com
Copyright 2000 MontaVista Software Inc.
Changes made to support the IIC peripheral on the IBM PPC 405
---------------------------------------------------------------------------
This file was highly leveraged from i2c-algo-pcf.c, which was created
by Simon G. Vogl and Hans Berglund:
Copyright (C) 1995-1997 Simon G. Vogl
1998-2000 Hans Berglund
With some changes from Kysti Mlkki <kmalkki@cc.hut.fi> and
Frodo Looijaard <frodol@dds.nl> ,and also from Martin Bailey
<mbailey@littlefeet-inc.com>
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.
---------------------------------------------------------------------------
History: 01/20/12 - Armin
akuster@mvista.com
ported up to 2.4.16+
Version 02/03/25 - Armin
converted to ocp format
removed commented out or #if 0 code
added Grard Basler's fix to iic_combined_transaction() such that it
returns the number of successfully completed transfers .
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-ibm_ocp.h>
#include <asm/ocp.h>
/* ----- global defines ----------------------------------------------- */
#define DEB(x) if (i2c_debug>=1) x
#define DEB2(x) if (i2c_debug>=2) x
#define DEB3(x) if (i2c_debug>=3) x /* print several statistical values*/
#define DEBPROTO(x) if (i2c_debug>=9) x;
/* debug the protocol by showing transferred bits */
#define DEF_TIMEOUT 5
/* ----- global variables --------------------------------------------- */
/* module parameters:
*/
static int i2c_debug=0;
/* --- setting states on the bus with the right timing: --------------- */
#define iic_outb(adap, reg, val) adap->setiic(adap->data, (int) &(reg), val)
#define iic_inb(adap, reg) adap->getiic(adap->data, (int) &(reg))
#define IICO_I2C_SDAHIGH 0x0780
#define IICO_I2C_SDALOW 0x0781
#define IICO_I2C_SCLHIGH 0x0782
#define IICO_I2C_SCLLOW 0x0783
#define IICO_I2C_LINEREAD 0x0784
#define IIC_SINGLE_XFER 0
#define IIC_COMBINED_XFER 1
#define IIC_ERR_LOST_ARB -2
#define IIC_ERR_INCOMPLETE_XFR -3
#define IIC_ERR_NACK -1
/* --- other auxiliary functions -------------------------------------- */
//
// Description: Puts this process to sleep for a period equal to timeout
//
static inline void iic_sleep(unsigned long timeout)
{
schedule_timeout( timeout * HZ);
}
//
// Description: This performs the IBM PPC 405 IIC initialization sequence
// as described in the PPC405GP data book.
//
static int iic_init (struct i2c_algo_iic_data *adap)
{
struct iic_regs *iic;
struct iic_ibm *adap_priv_data = adap->data;
unsigned short retval;
iic = (struct iic_regs *) adap_priv_data->iic_base;
/* Clear master low master address */
iic_outb(adap,iic->lmadr, 0);
/* Clear high master address */
iic_outb(adap,iic->hmadr, 0);
/* Clear low slave address */
iic_outb(adap,iic->lsadr, 0);
/* Clear high slave address */
iic_outb(adap,iic->hsadr, 0);
/* Clear status */
iic_outb(adap,iic->sts, 0x0a);
/* Clear extended status */
iic_outb(adap,iic->extsts, 0x8f);
/* Set clock division */
iic_outb(adap,iic->clkdiv, 0x04);
retval = iic_inb(adap, iic->clkdiv);
DEB(printk("iic_init: CLKDIV register = %x\n", retval));
/* Enable interrupts on Requested Master Transfer Complete */
iic_outb(adap,iic->intmsk, 0x01);
/* Clear transfer count */
iic_outb(adap,iic->xfrcnt, 0x0);
/* Clear extended control and status */
iic_outb(adap,iic->xtcntlss, 0xf0);
/* Set mode control (flush master data buf, enable hold SCL, exit */
/* unknown state. */
iic_outb(adap,iic->mdcntl, 0x47);
/* Clear control register */
iic_outb(adap,iic->cntl, 0x0);
DEB2(printk(KERN_DEBUG "iic_init: Initialized IIC on PPC 405\n"));
return 0;
}
//
// Description: After we issue a transaction on the IIC bus, this function
// is called. It puts this process to sleep until we get an interrupt from
// from the controller telling us that the transaction we requested in complete.
//
static int wait_for_pin(struct i2c_algo_iic_data *adap, int *status)
{
int timeout = DEF_TIMEOUT;
int retval;
struct iic_regs *iic;
struct iic_ibm *adap_priv_data = adap->data;
iic = (struct iic_regs *) adap_priv_data->iic_base;
*status = iic_inb(adap, iic->sts);
#ifndef STUB_I2C
while (timeout-- && (*status & 0x01)) {
adap->waitforpin(adap->data);
*status = iic_inb(adap, iic->sts);
}
#endif
if (timeout <= 0) {
/* Issue stop signal on the bus, and force an interrupt */
retval = iic_inb(adap, iic->cntl);
iic_outb(adap, iic->cntl, retval | 0x80);
/* Clear status register */
iic_outb(adap, iic->sts, 0x0a);
/* Exit unknown bus state */
retval = iic_inb(adap, iic->mdcntl);
iic_outb(adap, iic->mdcntl, (retval | 0x02));
// Check the status of the controller. Does it still see a
// pending transfer, even though we've tried to stop any
// ongoing transaction?
retval = iic_inb(adap, iic->sts);
retval = retval & 0x01;
if(retval) {
// The iic controller is hosed. It is not responding to any
// of our commands. We have already tried to force it into
// a known state, but it has not worked. Our only choice now
// is a soft reset, which will clear all registers, and force
// us to re-initialize the controller.
/* Soft reset */
iic_outb(adap, iic->xtcntlss, 0x01);
udelay(500);
iic_init(adap);
/* Is the pending transfer bit in the sts reg finally cleared? */
retval = iic_inb(adap, iic->sts);
retval = retval & 0x01;
if(retval) {
printk(KERN_CRIT "The IIC Controller is hosed. A processor reset is required\n");
}
// For some reason, even though the interrupt bit in this
// register was set during iic_init, it didn't take. We
// need to set it again. Don't ask me why....this is just what
// I saw when testing timeouts.
iic_outb(adap, iic->intmsk, 0x01);
}
return(-1);
}
else
return(0);
}
//------------------------------------
// Utility functions
//
//
// Description: Look at the status register to see if there was an error
// in the requested transaction. If there is, look at the extended status
// register and determine the exact cause.
//
int analyze_status(struct i2c_algo_iic_data *adap, int *error_code)
{
int ret;
struct iic_regs *iic;
struct iic_ibm *adap_priv_data = adap->data;
iic = (struct iic_regs *) adap_priv_data->iic_base;
ret = iic_inb(adap, iic->sts);
if(ret & 0x04) {
// Error occurred
ret = iic_inb(adap, iic->extsts);
if(ret & 0x04) {
// Lost arbitration
*error_code = IIC_ERR_LOST_ARB;
}
if(ret & 0x02) {
// Incomplete transfer
*error_code = IIC_ERR_INCOMPLETE_XFR;
}
if(ret & 0x01) {
// Master transfer aborted by a NACK during the transfer of the
// address byte
*error_code = IIC_ERR_NACK;
}
return -1;
}
return 0;
}
//
// Description: This function is called by the upper layers to do the
// grunt work for a master send transaction
//
static int iic_sendbytes(struct i2c_adapter *i2c_adap,const char *buf,
int count, int xfer_flag)
{
struct iic_regs *iic;
struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
struct iic_ibm *adap_priv_data = adap->data;
int wrcount, status, timeout;
int loops, remainder, i, j;
int ret, error_code;
iic = (struct iic_regs *) adap_priv_data->iic_base;
if( count == 0 ) return 0;
wrcount = 0;
loops = count / 4;
remainder = count % 4;
if((loops > 1) && (remainder == 0)) {
for(i=0; i<(loops-1); i++) {
//
// Write four bytes to master data buffer
//
for(j=0; j<4; j++) {
iic_outb(adap, iic->mdbuf,
buf[wrcount++]);
}
//
// Issue command to IICO device to begin transmission
//
iic_outb(adap, iic->cntl, 0x35);
//
// Wait for transmission to complete. When it does,
//loop to the top of the for statement and write the
// next four bytes.
//
timeout = wait_for_pin(adap, &status);
if(timeout < 0) {
//
// Error handling
//
//printk(KERN_ERR "Error: write timeout\n");
return wrcount;
}
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR) {
// Return the number of bytes transferred
ret = iic_inb(adap, iic->xfrcnt);
ret = ret & 0x07;
return (wrcount-4+ret);
}
else return error_code;
}
}
}
else if((loops >= 1) && (remainder > 0)){
//printk(KERN_DEBUG "iic_sendbytes: (loops >= 1)\n");
for(i=0; i<loops; i++) {
//
// Write four bytes to master data buffer
//
for(j=0; j<4; j++) {
iic_outb(adap, iic->mdbuf,
buf[wrcount++]);
}
//
// Issue command to IICO device to begin transmission
//
iic_outb(adap, iic->cntl, 0x35);
//
// Wait for transmission to complete. When it does,
//loop to the top of the for statement and write the
// next four bytes.
//
timeout = wait_for_pin(adap, &status);
if(timeout < 0) {
//
// Error handling
//
//printk(KERN_ERR "Error: write timeout\n");
return wrcount;
}
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR) {
// Return the number of bytes transferred
ret = iic_inb(adap, iic->xfrcnt);
ret = ret & 0x07;
return (wrcount-4+ret);
}
else return error_code;
}
}
}
//printk(KERN_DEBUG "iic_sendbytes: expedite write\n");
if(remainder == 0) remainder = 4;
// remainder = remainder - 1;
//
// Write the remaining bytes (less than or equal to 4)
//
for(i=0; i<remainder; i++) {
iic_outb(adap, iic->mdbuf, buf[wrcount++]);
//printk(KERN_DEBUG "iic_sendbytes: data transferred = %x, wrcount = %d\n", buf[wrcount-1], (wrcount-1));
}
//printk(KERN_DEBUG "iic_sendbytes: Issuing write\n");
if(xfer_flag == IIC_COMBINED_XFER) {
iic_outb(adap, iic->cntl, (0x09 | ((remainder-1) << 4)));
}
else {
iic_outb(adap, iic->cntl, (0x01 | ((remainder-1) << 4)));
}
DEB2(printk(KERN_DEBUG "iic_sendbytes: Waiting for interrupt\n"));
timeout = wait_for_pin(adap, &status);
if(timeout < 0) {
//
// Error handling
//
//printk(KERN_ERR "Error: write timeout\n");
return wrcount;
}
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR) {
// Return the number of bytes transferred
ret = iic_inb(adap, iic->xfrcnt);
ret = ret & 0x07;
return (wrcount-4+ret);
}
else return error_code;
}
DEB2(printk(KERN_DEBUG "iic_sendbytes: Got interrupt\n"));
return wrcount;
}
//
// Description: Called by the upper layers to do the grunt work for
// a master read transaction.
//
static int iic_readbytes(struct i2c_adapter *i2c_adap, char *buf, int count, int xfer_type)
{
struct iic_regs *iic;
int rdcount=0, i, status, timeout;
struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
struct iic_ibm *adap_priv_data = adap->data;
int loops, remainder, j;
int ret, error_code;
iic = (struct iic_regs *) adap_priv_data->iic_base;
if(count == 0) return 0;
loops = count / 4;
remainder = count % 4;
//printk(KERN_DEBUG "iic_readbytes: loops = %d, remainder = %d\n", loops, remainder);
if((loops > 1) && (remainder == 0)) {
//printk(KERN_DEBUG "iic_readbytes: (loops > 1) && (remainder == 0)\n");
for(i=0; i<(loops-1); i++) {
//
// Issue command to begin master read (4 bytes maximum)
//
//printk(KERN_DEBUG "--->Issued read command\n");
iic_outb(adap, iic->cntl, 0x37);
//
// Wait for transmission to complete. When it does,
// loop to the top of the for statement and write the
// next four bytes.
//
//printk(KERN_DEBUG "--->Waiting for interrupt\n");
timeout = wait_for_pin(adap, &status);
if(timeout < 0) {
// Error Handler
//printk(KERN_ERR "Error: read timed out\n");
return rdcount;
}
//printk(KERN_DEBUG "--->Got interrupt\n");
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR)
return rdcount;
else
return error_code;
}
for(j=0; j<4; j++) {
// Wait for data to shuffle to top of data buffer
// This value needs to optimized.
udelay(1);
buf[rdcount] = iic_inb(adap, iic->mdbuf);
rdcount++;
//printk(KERN_DEBUG "--->Read one byte\n");
}
}
}
else if((loops >= 1) && (remainder > 0)){
//printk(KERN_DEBUG "iic_readbytes: (loops >=1) && (remainder > 0)\n");
for(i=0; i<loops; i++) {
//
// Issue command to begin master read (4 bytes maximum)
//
//printk(KERN_DEBUG "--->Issued read command\n");
iic_outb(adap, iic->cntl, 0x37);
//
// Wait for transmission to complete. When it does,
// loop to the top of the for statement and write the
// next four bytes.
//
//printk(KERN_DEBUG "--->Waiting for interrupt\n");
timeout = wait_for_pin(adap, &status);
if(timeout < 0) {
// Error Handler
//printk(KERN_ERR "Error: read timed out\n");
return rdcount;
}
//printk(KERN_DEBUG "--->Got interrupt\n");
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR)
return rdcount;
else
return error_code;
}
for(j=0; j<4; j++) {
// Wait for data to shuffle to top of data buffer
// This value needs to optimized.
udelay(1);
buf[rdcount] = iic_inb(adap, iic->mdbuf);
rdcount++;
//printk(KERN_DEBUG "--->Read one byte\n");
}
}
}
//printk(KERN_DEBUG "iic_readbytes: expedite read\n");
if(remainder == 0) remainder = 4;
DEB2(printk(KERN_DEBUG "iic_readbytes: writing %x to IICO_CNTL\n", (0x03 | ((remainder-1) << 4))));
if(xfer_type == IIC_COMBINED_XFER) {
iic_outb(adap, iic->cntl, (0x0b | ((remainder-1) << 4)));
}
else {
iic_outb(adap, iic->cntl, (0x03 | ((remainder-1) << 4)));
}
DEB2(printk(KERN_DEBUG "iic_readbytes: Wait for pin\n"));
timeout = wait_for_pin(adap, &status);
DEB2(printk(KERN_DEBUG "iic_readbytes: Got the interrupt\n"));
if(timeout < 0) {
// Error Handler
//printk(KERN_ERR "Error: read timed out\n");
return rdcount;
}
ret = analyze_status(adap, &error_code);
if(ret < 0) {
if(error_code == IIC_ERR_INCOMPLETE_XFR)
return rdcount;
else
return error_code;
}
//printk(KERN_DEBUG "iic_readbyte: Begin reading data buffer\n");
for(i=0; i<remainder; i++) {
buf[rdcount] = iic_inb(adap, iic->mdbuf);
// printk(KERN_DEBUG "iic_readbytes: Character read = %x\n", buf[rdcount]);
rdcount++;
}
return rdcount;
}
//
// Description: This function implements combined transactions. Combined
// transactions consist of combinations of reading and writing blocks of data.
// Each transfer (i.e. a read or a write) is separated by a repeated start
// condition.
//
static int iic_combined_transaction(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num)
{
int i;
struct i2c_msg *pmsg;
int ret;
DEB2(printk(KERN_DEBUG "Beginning combined transaction\n"));
for(i=0; i < num; i++) {
pmsg = &msgs[i];
if(pmsg->flags & I2C_M_RD) {
// Last read or write segment needs to be terminated with a stop
if(i < num-1) {
DEB2(printk(KERN_DEBUG "This one is a read\n"));
}
else {
DEB2(printk(KERN_DEBUG "Doing the last read\n"));
}
ret = iic_readbytes(i2c_adap, pmsg->buf, pmsg->len, (i < num-1) ? IIC_COMBINED_XFER : IIC_SINGLE_XFER);
if (ret != pmsg->len) {
DEB2(printk("i2c-algo-ppc405.o: fail: "
"only read %d bytes.\n",ret));
return i;
}
else {
DEB2(printk("i2c-algo-ppc405.o: read %d bytes.\n",ret));
}
}
else if(!(pmsg->flags & I2C_M_RD)) {
// Last read or write segment needs to be terminated with a stop
if(i < num-1) {
DEB2(printk(KERN_DEBUG "This one is a write\n"));
}
else {
DEB2(printk(KERN_DEBUG "Doing the last write\n"));
}
ret = iic_sendbytes(i2c_adap, pmsg->buf, pmsg->len, (i < num-1) ? IIC_COMBINED_XFER : IIC_SINGLE_XFER);
if (ret != pmsg->len) {
DEB2(printk("i2c-algo-ppc405.o: fail: "
"only wrote %d bytes.\n",ret));
return i;
}
else {
DEB2(printk("i2c-algo-ppc405.o: wrote %d bytes.\n",ret));
}
}
}
return num;
}
//
// Description: Whenever we initiate a transaction, the first byte clocked
// onto the bus after the start condition is the address (7 bit) of the
// device we want to talk to. This function manipulates the address specified
// so that it makes sense to the hardware when written to the IIC peripheral.
//
// Note: 10 bit addresses are not supported in this driver, although they are
// supported by the hardware. This functionality needs to be implemented.
//
static inline int iic_doAddress(struct i2c_algo_iic_data *adap,
struct i2c_msg *msg, int retries)
{
struct iic_regs *iic;
unsigned short flags = msg->flags;
unsigned char addr;
struct iic_ibm *adap_priv_data = adap->data;
iic = (struct iic_regs *) adap_priv_data->iic_base;
//
// The following segment for 10 bit addresses needs to be ported
//
/* Ten bit addresses not supported right now
if ( (flags & I2C_M_TEN) ) {
// a ten bit address
addr = 0xf0 | (( msg->addr >> 7) & 0x03);
DEB2(printk(KERN_DEBUG "addr0: %d\n",addr));
// try extended address code...
ret = try_address(adap, addr, retries);
if (ret!=1) {
printk(KERN_ERR "iic_doAddress: died at extended address code.\n");
return -EREMOTEIO;
}
// the remaining 8 bit address
iic_outb(adap,msg->addr & 0x7f);
// Status check comes here
if (ret != 1) {
printk(KERN_ERR "iic_doAddress: died at 2nd address code.\n");
return -EREMOTEIO;
}
if ( flags & I2C_M_RD ) {
i2c_repstart(adap);
// okay, now switch into reading mode
addr |= 0x01;
ret = try_address(adap, addr, retries);
if (ret!=1) {
printk(KERN_ERR "iic_doAddress: died at extended address code.\n");
return -EREMOTEIO;
}
}
} else ----------> // normal 7 bit address
Ten bit addresses not supported yet */
addr = ( msg->addr << 1 );
if (flags & I2C_M_RD )
addr |= 1;
if (flags & I2C_M_REV_DIR_ADDR )
addr ^= 1;
//
// Write to the low slave address
//
iic_outb(adap, iic->lmadr, addr);
//
// Write zero to the high slave register since we are
// only using 7 bit addresses
//
iic_outb(adap, iic->hmadr, 0);
return 0;
}
//
// Description: Prepares the controller for a transaction (clearing status
// registers, data buffers, etc), and then calls either iic_readbytes or
// iic_sendbytes to do the actual transaction.
//
static int iic_xfer(struct i2c_adapter *i2c_adap,
struct i2c_msg msgs[],
int num)
{
struct iic_regs *iic;
struct i2c_algo_iic_data *adap = i2c_adap->algo_data;
struct iic_ibm *adap_priv_data = adap->data;
struct i2c_msg *pmsg;
int i = 0;
int ret;
iic = (struct iic_regs *) adap_priv_data->iic_base;
pmsg = &msgs[i];
//
// Clear status register
//
DEB2(printk(KERN_DEBUG "iic_xfer: iic_xfer: Clearing status register\n"));
iic_outb(adap, iic->sts, 0x0a);
//
// Wait for any pending transfers to complete
//
DEB2(printk(KERN_DEBUG "iic_xfer: Waiting for any pending transfers to complete\n"));
while((ret = iic_inb(adap, iic->sts)) == 0x01) {
;
}
//
// Flush master data buf
//
DEB2(printk(KERN_DEBUG "iic_xfer: Clearing master data buffer\n"));
ret = iic_inb(adap, iic->mdcntl);
iic_outb(adap, iic->mdcntl, ret | 0x40);
//
// Load slave address
//
DEB2(printk(KERN_DEBUG "iic_xfer: Loading slave address\n"));
ret = iic_doAddress(adap, pmsg, i2c_adap->retries);
//
// Check to see if the bus is busy
//
ret = iic_inb(adap, iic->extsts);
// Mask off the irrelevent bits
ret = ret & 0x70;
// When the bus is free, the BCS bits in the EXTSTS register are 0b100
if(ret != 0x40) return IIC_ERR_LOST_ARB;
//
// Combined transaction (read and write)
//
if(num > 1) {
DEB2(printk(KERN_DEBUG "iic_xfer: Call combined transaction\n"));
ret = iic_combined_transaction(i2c_adap, msgs, num);
}
//
// Read only
//
else if((num == 1) && (pmsg->flags & I2C_M_RD)) {
//
// Tell device to begin reading data from the master data
//
DEB2(printk(KERN_DEBUG "iic_xfer: Call adapter's read\n"));
ret = iic_readbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_SINGLE_XFER);
}
//
// Write only
//
else if((num == 1 ) && (!(pmsg->flags & I2C_M_RD))) {
//
// Write data to master data buffers and tell our device
// to begin transmitting
//
DEB2(printk(KERN_DEBUG "iic_xfer: Call adapter's write\n"));
ret = iic_sendbytes(i2c_adap, pmsg->buf, pmsg->len, IIC_SINGLE_XFER);
}
return ret;
}
//
// Description: Implements device specific ioctls. Higher level ioctls can
// be found in i2c-core.c and are typical of any i2c controller (specifying
// slave address, timeouts, etc). These ioctls take advantage of any hardware
// features built into the controller for which this algorithm-adapter set
// was written. These ioctls allow you to take control of the data and clock
// lines on the IBM PPC 405 IIC controller and set the either high or low,
// similar to a GPIO pin.
//
static int algo_control(struct i2c_adapter *adapter,
unsigned int cmd, unsigned long arg)
{
struct iic_regs *iic;
struct i2c_algo_iic_data *adap = adapter->algo_data;
struct iic_ibm *adap_priv_data = adap->data;
int ret=0;
int lines;
iic = (struct iic_regs *) adap_priv_data->iic_base;
lines = iic_inb(adap, iic->directcntl);
if (cmd == IICO_I2C_SDAHIGH) {
lines = lines & 0x01;
if( lines ) lines = 0x04;
else lines = 0;
iic_outb(adap, iic->directcntl,(0x08|lines));
}
else if (cmd == IICO_I2C_SDALOW) {
lines = lines & 0x01;
if( lines ) lines = 0x04;
else lines = 0;
iic_outb(adap, iic->directcntl,(0x00|lines));
}
else if (cmd == IICO_I2C_SCLHIGH) {
lines = lines & 0x02;
if( lines ) lines = 0x08;
else lines = 0;
iic_outb(adap, iic->directcntl,(0x04|lines));
}
else if (cmd == IICO_I2C_SCLLOW) {
lines = lines & 0x02;
if( lines ) lines = 0x08;
else lines = 0;
iic_outb(adap, iic->directcntl,(0x00|lines));
}
else if (cmd == IICO_I2C_LINEREAD) {
ret = lines;
}
return ret;
}
static u32 iic_func(struct i2c_adapter *adap)
{
return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
I2C_FUNC_PROTOCOL_MANGLING;
}
/* -----exported algorithm data: ------------------------------------- */
static struct i2c_algorithm iic_algo = {
.name = "IBM on-chip IIC algorithm",
.id = I2C_ALGO_OCP,
.master_xfer = iic_xfer,
.algo_control = algo_control,
.functionality = iic_func,
};
/*
* registering functions to load algorithms at runtime
*/
//
// Description: Register bus structure
//
int i2c_ocp_add_bus(struct i2c_adapter *adap)
{
struct i2c_algo_iic_data *iic_adap = adap->algo_data;
DEB2(printk(KERN_DEBUG "i2c-algo-iic.o: hw routines for %s registered.\n",
adap->name));
/* register new adapter to i2c module... */
adap->id |= iic_algo.id;
adap->algo = &iic_algo;
adap->timeout = 100; /* default values, should */
adap->retries = 3; /* be replaced by defines */
iic_init(iic_adap);
i2c_add_adapter(adap);
return 0;
}
//
// Done
//
int i2c_ocp_del_bus(struct i2c_adapter *adap)
{
return i2c_del_adapter(adap);
}
EXPORT_SYMBOL(i2c_ocp_add_bus);
EXPORT_SYMBOL(i2c_ocp_del_bus);
//
// The MODULE_* macros resolve to nothing if MODULES is not defined
// when this file is compiled.
//
MODULE_AUTHOR("MontaVista Software <www.mvista.com>");
MODULE_DESCRIPTION("PPC 405 iic algorithm");
MODULE_LICENSE("GPL");
MODULE_PARM(i2c_debug,"i");
MODULE_PARM_DESC(i2c_debug,
"debug level - 0 off; 1 normal; 2,3 more verbose; 9 iic-protocol");
drivers/i2c/i2c-algo-ibm_ocp.h deleted 100644 → 0
View file @ 8912ad07
/* ------------------------------------------------------------------------- */
/* i2c-algo-ibm_ocp.h i2c driver algorithms for IBM PPC 405 IIC adapters */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-97 Simon G. Vogl
1998-99 Hans Berglund
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. */
/* ------------------------------------------------------------------------- */
/* With some changes from Kysti Mlkki <kmalkki@cc.hut.fi> and even
Frodo Looijaard <frodol@dds.nl> */
/* Modifications by MontaVista Software, August 2000
Changes made to support the IIC peripheral on the IBM PPC 405 */
#ifndef I2C_ALGO_IIC_H
#define I2C_ALGO_IIC_H 1
/* --- Defines for pcf-adapters --------------------------------------- */
#include <linux/i2c.h>
struct i2c_algo_iic_data {
struct iic_regs *data; /* private data for lolevel routines */
void (*setiic) (void *data, int ctl, int val);
int (*getiic) (void *data, int ctl);
int (*getown) (void *data);
int (*getclock) (void *data);
void (*waitforpin) (void *data);
/* local settings */
int udelay;
int mdelay;
int timeout;
};
#define I2C_IIC_ADAP_MAX 16
int i2c_ocp_add_bus(struct i2c_adapter *);
int i2c_ocp_del_bus(struct i2c_adapter *);
#endif /* I2C_ALGO_IIC_H */
drivers/i2c/i2c-algo-ite.c
View file @ 6c16fa73
......@@ -38,7 +38,6 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/version.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <linux/ioport.h>
......
drivers/i2c/i2c-core.c
View file @ 6c16fa73
......@@ -581,8 +581,7 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count)
*/
return (ret == 1 )? count : ret;
} else {
printk(KERN_ERR "i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n",
client->adapter->id);
dev_err(&client->adapter->dev, "I2C level transfers not supported\n");
return -ENOSYS;
}
}
......@@ -614,8 +613,7 @@ int i2c_master_recv(struct i2c_client *client, char *buf ,int count)
*/
return (ret == 1 )? count : ret;
} else {
printk(KERN_DEBUG "i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n",
client->adapter->id);
dev_err(&client->adapter->dev, "I2C level transfers not supported\n");
return -ENOSYS;
}
}
......
drivers/i2c/i2c-sensor.c
View file @ 6c16fa73
......@@ -50,8 +50,9 @@ int i2c_detect(struct i2c_adapter *adapter,
return -1;
for (addr = 0x00; addr <= (is_isa ? 0xffff : 0x7f); addr++) {
/* XXX: WTF is going on here??? */
if ((is_isa && check_region(addr, 1)) ||
void *region_used = request_region(addr, 1, "foo");
release_region(addr, 1);
if ((is_isa && (region_used == NULL)) ||
(!is_isa && i2c_check_addr(adapter, addr)))
continue;
......
drivers/media/video/msp3400.c
View file @ 6c16fa73
......@@ -1316,7 +1316,7 @@ static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
#endif
msp3400c_setvolume(c,msp->muted,msp->left,msp->right);
snprintf(c->name, DEVICE_NAME_SIZE, "MSP34%02d%c-%c%d",
snprintf(c->name, I2C_NAME_SIZE, "MSP34%02d%c-%c%d",
(msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
......
drivers/media/video/saa5249.c
View file @ 6c16fa73
......@@ -171,7 +171,7 @@ static int saa5249_attach(struct i2c_adapter *adap, int addr, int kind)
return -ENOMEM;
}
memset(t, 0, sizeof(*t));
strlcpy(client->name, IF_NAME, DEVICE_NAME_SIZE);
strlcpy(client->name, IF_NAME, I2C_NAME_SIZE);
init_MUTEX(&t->lock);
/*
......
drivers/media/video/tuner.c
View file @ 6c16fa73
......@@ -824,7 +824,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
if (type < TUNERS) {
t->type = type;
printk("tuner(bttv): type forced to %d (%s) [insmod]\n",t->type,tuners[t->type].name);
strlcpy(client->name, tuners[t->type].name, DEVICE_NAME_SIZE);
strlcpy(client->name, tuners[t->type].name, I2C_NAME_SIZE);
}
i2c_attach_client(client);
if (t->type == TUNER_MT2032)
......@@ -875,7 +875,7 @@ tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
t->type = *iarg;
printk("tuner: type set to %d (%s)\n",
t->type,tuners[t->type].name);
strlcpy(client->name, tuners[t->type].name, DEVICE_NAME_SIZE);
strlcpy(client->name, tuners[t->type].name, I2C_NAME_SIZE);
if (t->type == TUNER_MT2032)
mt2032_init(client);
break;
......
drivers/video/matrox/i2c-matroxfb.c
View file @ 6c16fa73
......@@ -111,7 +111,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
b->mask.data = data;
b->mask.clock = clock;
b->adapter = matrox_i2c_adapter_template;
snprintf(b->adapter.name, DEVICE_NAME_SIZE, name,
snprintf(b->adapter.name, I2C_NAME_SIZE, name,
minfo->fbcon.node);
i2c_set_adapdata(&b->adapter, b);
b->adapter.algo_data = &b->bac;
......
include/linux/i2c-id.h
View file @ 6c16fa73
......@@ -100,7 +100,7 @@
#define I2C_DRIVERID_STM41T00 52 /* real time clock */
#define I2C_DRIVERID_UDA1342 53 /* UDA1342 audio codec */
#define I2C_DRIVERID_ADV7170 54 /* video encoder */
#define I2C_DRIVERID_RADEON 55 /* I2C bus on Radeon boards */
#define I2C_DRIVERID_EXP0 0xF0 /* experimental use id's */
......
include/linux/i2c.h
View file @ 6c16fa73
......@@ -146,6 +146,8 @@ struct i2c_driver {
extern struct bus_type i2c_bus_type;
#define I2C_NAME_SIZE 50
/*
* i2c_client identifies a single device (i.e. chip) that is connected to an
* i2c bus. The behaviour is defined by the routines of the driver. This
......@@ -166,7 +168,7 @@ struct i2c_client {
/* to the client */
struct device dev; /* the device structure */
struct list_head list;
char name[DEVICE_NAME_SIZE];
char name[I2C_NAME_SIZE];
struct completion released;
};
#define to_i2c_client(d) container_of(d, struct i2c_client, dev)
......@@ -253,7 +255,7 @@ struct i2c_adapter {
int nr;
struct list_head clients;
struct list_head list;
char name[DEVICE_NAME_SIZE];
char name[I2C_NAME_SIZE];
struct completion dev_released;
struct completion class_dev_released;
};
......
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