This patch removes the default value from some platform/SoC specific
options which are declared in drivers/i2c/Kconfig because 1) most of
the time they are not valid values and 2) the correct values are
already set in the SoC Kconfig.
It also moves the interrupt priority definition from the driver's
Kconfig to the platform's Kconfig since it is a platform-specific
configuration.
Change-Id: If3c260b9a2fa095de47a99eb7fa5b947efefe9b1
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Adds the driver to utilize the I2C/TWI interface on Atmel SAM3
family processors for I2C communication.
Note that this currently only supports master mode. Limited
testing has been done using the Fujitsu FRAM sample app.
Change-Id: Ibdb8277e47dd9450b49a66a95421eb1ffb1c4eb4
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Due to an issue with the interrupt-based transfer API from QMSI driver,
the 'transfer' callback from the shim driver (i2c_qmsi_transfer) is
implemented with polling APIs. This is not ideal because we are not able
to sleep the current thread (so another task can be scheduled in) while
the i2c operation is carried out.
The interrupt issue with the QMSI driver has been solved then this patch
fixes the shim driver so it uses the interrupt-based API and adds extra
code to handle the thread synchronization.
Finally, this patch also moves all 'struct device' related definitions
from the bottom to the top of the i2c_qmsi.c file so the DEVICE_GET
macro can be used in transfer_complete() and removes the init.h include
since it is not needed anymore.
Change-Id: I7ef7ce4cea6fcc939e310e5fe12c406645f6a16e
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Currently, the I2C QMSI shim driver supports only the "I2C 0"
controller instance. This patch extends the driver so it supports
the "I2C 1" instance as well.
The controller instances can be enabled independently.
Change-Id: Ieb64df46816026f3f4fb262a1682c98ee36bedd5
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This patch introduces the QMSI I2C driver which is simply a shim driver
based on I2C driver provided by QMSI BSP.
This initial version supports only I2C_0 controller in 'master' mode.
Due to some issues with qm_i2c_master_irq_transfer API, the driver uses
the polling APIs from QMSI. This means that the current thread doesn't
sleep (i.e. is not scheduled out) while the I2C transfer is carried out.
The qm_i2c_master_irq_transfer() issue is under investigation.
Below follows the missing features which will be addressed by a new
version of this patch or by upcoming patches.
* Block the current thread until the I2C operation has actually
completed.
* Add support for multiple controllers.
* Add support for slave mode.
* Add support for suspend() and resume() APIs.
In order to enable this driver, the following options should be set:
CONFIG_QMSI_DRIVERS=y
CONFIG_QMSI_INSTALL_PATH="/path/to/libqmsi/directory"
CONFIG_I2C=y
CONFIG_I2C_QMSI=y
Finally, due to the lack of proper support for Quark SE in QMSI 1.0.0,
this driver requires QMSI version greater than 1.0.0.
This driver has been tested only with Quark SE based boards.
Change-Id: I369992c7b5fe37f7e0b45be7f19e667ad1fca9ac
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
This patch moves the config options I2C_STATUS_DELAY, I2C_CLOCK_SPEED
and I2C_DEBUG to the top of the Kconfig file. These options are
independent of the device driver and should be placed together with
option I2C_INIT_PRIORITY which is also independent.
Change-Id: I2297f4c31c0106a0d80fbaa9b4e5be0488b84732
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Use a default priority to avoid Kconfig blocking when priority
is not set in SoC or Board.
Change-Id: I4edda47b955a7ee834f04dc40d0decbd8dee6305
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Change terminology and use SoC instead of platform. An SoC provides
features and default configurations available with an SoC. A board
implements the SoC and adds more features and IP block specific to the
board to extend the SoC functionality such as sensors and debugging
features.
Change-Id: I15e8d78a6d4ecd5cfb3bc25ced9ba77e5ea1122f
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This platform if actually a subsystem of the Quark SE SoC and is
not standalone. Use a more descriptive name and remove the architecture
from the platform name.
Change-Id: I16b1ab8dd668441683b07fc4512c219924463441
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Put initialization priorities as device driver Kconfig
parameter.
Initialization priority value for each platform is defined
in the platform Kconfig file.
Drivers and platform code use SYS_DEFINE_DEVICE to add
and initialization function.
Change-Id: I2f4f3c7370dac02408a1b50a0a1bade8b427a282
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
- Provide the irq flags to IRQ_CONNECT_STATIC
- Provide the actual IRQ for that controller
Change-Id: If660baca7e92065cfdb588a2ae86ff13da0918eb
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This adds the I2C driver for the Sensor Subsystem on Quark SE.
This provides minimal support for the I2C controller, and does
only synchronous transfer at the moment.
Change-Id: I400b8ff3390d4b641bed5b8c617830c4217de3ff
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Somehow through the process of enabling Galileo, we have partially lost
the functionality needed to enable I2C1. Bringing back the I2C
configuration options for I2C1 to the DW IP block.
Change-Id: I296bd9c3d167969df5b2fe17627633f5ec4b1ba4
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Changes the default IRQ priority level from 0 to 2 for the following
kernel configuration options as priorities 0 and 1 are reserved for the
first 32 IDT entries.
SHARED_IRQ_0_PRI
SHARED_IRQ_1_PRI
I2C_DW_0_INT_PRIORITY
GPIO_DW_0_PRI
GPIO_DW_1_PRI
SPI_INTEL_PORT_0_PRI
SPI_INTEL_PORT_1_PRI
Change-Id: I0fc821c68156eb1e1fe776b2bd4ff5890bba40e8
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Change all the Intel and Wind River code license from BSD-3 to Apache 2.
Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Such settings belong to Galileo and thus are set in Galileo Kconfig.
Change-Id: Ib9ec721fcc68e92521f8b7690c2640eeb82b2f4c
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
On some platforms (e.g. Galileo), the I2C controller is on PCI bus,
which shares IRQ with other devices (GPIO on Galileo). This patch
adds support for utilizing shared IRQ.
Change-Id: Id4e4714aed37c2893d0ffe9ed1e4edaabb338121
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The interrupt selectionss are no longer specific to a particular
controller (e.g. I2C_DW_0), but apply to all controllers on
the platform.
[DL: Extracted these changes into their own patch, instead of
being squashed with others. Also modified the Kconfig
options to move them into proper position.]
Change-Id: Idc7ac9769e947447b868dccf772a95dbb5fc8021
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
This adds the Kconfig option to specify default configuration
for the I2C controller during driver initialization.
During boot, the controller needs to be configured before
communication to slave devices can start. After boot,
an app can re-configure the controller if needed.
Change-Id: I7bf252f75a31943ae444e4d914f3a9a1a3f3d91f
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This makes variables readable and consistent with other drivers
we have.
Change-Id: I816f133279497eafd5d5614013c8d224d5909590
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This driver naming is an exception which compared with all other drivers
we have. To keep things consistent the configuration options and variables
are renamed to <type>_<name>.
Change-Id: Ib95aa09630a507848f78d8f2c28706b545eed06d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Only 1 port is available on Quark through the PCI bus.
Change-Id: Ie0e0173686947134d2553dd0fd0230ffa5a1d456
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Initial import of Synopsis DesignWare I2C driver functionality
for the Zephyr Project. This import has been tested for host
master control. While it does contain the code to work as a host
slave, this code has not yet been completely tested and validated.
Change-Id: I3df0214f6e3b6798f7dad4819d09c3ec5998e508
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
Adds the necessary changes to Kbuild and Makefiles to enable I2C
driver support to build.
Change-Id: I3113ccbbbbb4e06ef134ca73f509d2755a2abb59
Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com>
