Commit graph

867 commits

Author SHA1 Message Date
Dmitriy Korovkin
0d50329105 microkernel: Add support for *_sleep() during initialization
Add support for task_sleep() and fiber_sleep() during the
system initialization. When CONFIG_NANO_TIMEOUTS defined,
before the k_server() starts, kernel uses nanokernel
system clock announce and task sleep functionality.

To give device drivers early sleep functionality, the system
clock has to start on SECONDARY initialization level, same
as most of the drivers.

Change-Id: I5b3cf3da4c8d8398a966e901ab211f2fcee18dd6
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
2016-03-10 18:39:33 +00:00
Andrei Emeltchenko
90697c3e35 drivers/nble: Implement GATT write without response
Implement GATT write without response, no signing yet.

Change-Id: Id676202ab270cf3f0b06ede26dee2f84a9965e09
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-10 16:55:56 +00:00
Andrei Emeltchenko
a8612d5aa8 drivers/nble: Implement GATT write request
Implement GATT write and handle response.

Change-Id: I5f1dd48e12149534d1c7bb0096a5bddc68fd8a0d
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-10 16:55:16 +00:00
Maciek Borzecki
5b1b008661 drivers/adc: fix QMSI ADC config options dependency
Config options 'Clock Radio and 'Serial Delay' appeared out of ADC menu
due to a missing dependency on ADC_QMSI.

Change-Id: Ia1ca0d5a4ea676205a5928689c2adee9e26c2691
Signed-off-by: Maciej Borzecki <maciek.borzecki@gmail.com>
2016-03-10 13:28:42 +00:00
Jeff Blais
995a9ba72a arm: K64 SPI module driver
Support for Freescale/NXP K64 SPI modules, limited to:

- Master mode
- A single active set of clock and transfer attributes (CTAR0), which
includes non-adjustable delay parameters
- Tx FIFO fill and Rx FIFO drain interrupt handling
- Standard, continuous select and continuous SCK SPI transfer formats

Also, divide-by-zero code generation in this driver is prevented.
The 'volatile' attribute is added to some of the variables in the baud
rate and delay calculation functions of the K64 SPI driver in order to
prevent bad code generation by gcc toolchains for ARM seen when an
optimization setting above -O0 is used.
Specifically, a register is loaded with the constant 0 and is used as
the divisor in a following divide instruction, resulting in a
divide-by-zero exception.
This issue has been seen with gcc versions 4.8.1 (the VxWorks toolchain)
and 5.2.0 (the Zephyr SDK toolchain).

Change-Id: Ib5b2b748aad8fdfd5e8d40544e6e1abef3713abe
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 15:50:16 +00:00
Jeff Blais
1f90470a27 arm: K64F Pulse Width Modulation (PWM) support
PWM support using the Freescale K64 FlexTimer Module (FTM)

Change-Id: Iaad429c01bd877babba04e84d6a4679bd7e38120
Work-by: Mike Hirst <michael.hirst@windriver.com>
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 15:49:44 +00:00
Jeff Blais
f4c7e6697d arm: Add GPIO interrupt/callback support for K64F
Interrupt and callback function support is added to the K64F GPIO driver.

The implementation is based on the Designware GPIO driver (gpio-dw.*).

Change-Id: Id88d06f748400f8f822ca98e098cb44a53678c38
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 12:54:02 +00:00
Jeff Blais
52b499fd1f arm: Freescale K64/FRDM-K64F Pinmux support
K64 pinmux support is created as a normal driver.

As opposed to the Galileo board, the pin configuration options are
defined by the MCU and are not board-specific.  Separate
platform/board-specific configuration code uses the pinmux driver for
the default pin settings. For FRDM-K64F, only the Arduino pins (22 of a
possible 160) are set up.

Some of the I/O pins routed to the Arduino header are also configured as
JTAG/SWD signals by default and are used by the OpenSDAv2 debug
interface.  Therefore, a PRESERVE_JTAG_IO_PINS config option was created
for the FRDM-K64 platform to prevent the default pin settings from
re-configuring these pins.

The K64 MCU separates pin configuration and control, implemented in the
pinmux driver, from GPIO.  This results in some cross referencing
between the K64 GPIO driver and the K64 pinmux driver due to the
dependencies of one on the other.

This pinmux driver also uses the expanded pinmux function/mode parameter
size to describe pin configuration options with bit fields for the K64,
including up to 8 pin functions, plus interrupt, pullup/down, drive
strength, open-drain and slew rate.

The following GCC warnings in the K64 pinmux driver are prevented when not
compiling with 'no-optimization' (-O0):

warning: 'gpio_dev' may be used uninitialized in this function
[-Wmaybe-uninitialized]

Change-Id: Ie5031d18750143bf895883058b3cd55fd9989fd3
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 11:58:02 +00:00
Andrei Emeltchenko
ed14803c27 drivers/nble: Implement GATT read request
Implement GATT read reusing gatt_private to store GATT parameters.

Change-Id: Ie3c58a6272cc7cf380e4d3a04e45b191680d1ebe
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-09 10:19:58 +00:00
Jeff Blais
59359595fe pinmux: Expand the pin function/mode parameter size
The pinmux API was modified to expand the meaning of the 'func' argument
to allow it to represent more than a pre-configured function.  This was done
to reasonably accommodate a larger range of pin configuration options
offered by other MCUs, such as the Freescale K64 (up to 8 pin functions,
plus interrupt, pullup/down, drive strength, open-drain, slew rate, etc.).

This allows bit fields to be used to define various settings.

Change-Id: I2b216b822c6bae7133eed01c8c3339bb47b6c5db
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 06:39:16 +00:00
Jeff Blais
0fd7af2a52 arm: Freescale K64 GPIO driver
Basic driver support for the Freescale K64 GPIO module.

Note that only pin direction, read and write are supported.

Change-Id: I6587bb260197a00497be9ac991002e3dde54718d
Signed-off-by: Jeff Blais <jeff.blais@windriver.com>
2016-03-09 06:39:16 +00:00
Maciek Borzecki
9d61f61453 clock_control/Kconfig: fix quark_se dependencies
Fix dependencies for external and sensor clock device names in
clock_control Kconfig.

Change-Id: I708f025cf3ce97bcd003754fb5b395712d203107
Signed-off-by: Maciej Borzecki <maciek.borzecki@gmail.com>
2016-03-08 16:47:48 +00:00
Szymon Janc
6116d58b02 Bluetooth: Use bt_auth_cancel for pairing cancel
bt_auth_cancel can be used to cancel any type of pairing.

Change-Id: Ia1a6ba834186ab6d5082d3eb473319c2d70cf4a7
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
2016-03-08 15:38:59 +00:00
Andrei Emeltchenko
2ff3e1b580 drivers/nble: Rename gatt_discover to gatt_private
Change-Id: I643ae9c5468fac86ce5cb259609dd42365d67bb3
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-08 11:48:05 +00:00
Andrei Emeltchenko
76ce7d67e9 drivers/nble: Rearrange header includes
Rearrange headers so that internal header files gap_internal.h and
gatt_internal.h do not source headers, they are included in *.c files.

Change-Id: I6450ab90eec1b450ee8a138da2ed72b8aaeaf616
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-08 11:47:35 +00:00
Andrei Emeltchenko
a49f3058d9 drivers/nble: Remove unneeded forward declaration
Change-Id: I79bf15eee2206faf6a1c4d067f79d09c2f8ec66f
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-08 11:17:38 +00:00
Andrei Emeltchenko
bef9fb8189 drivers/nble: Update RPC to Nordic BLE chip
Update RPC functions and data types, works with NBLE firmware
niko-0301

Change-Id: I3538fab1d20c6e140d995a797d68486be6cd0f23
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-08 10:57:03 +00:00
Andre Guedes
2efffac34f rtc: Fix Kconfig
This patch fixes the RTC_DW configuration option. DesignWare and QMSI
drivers shouldn't have any dependency from each other. All driveris
are following this policy, but the RTC.

Change-Id: Ic6bdef492d26978aa875c54d41ef39d407ddf4e1
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-03-07 20:04:33 -03:00
Baohong Liu
f3da05f4cb drivers: WinBond SPI flash support
SPI flash sub-driver to support WinBond SPI flash.
It is based on the generic flash driver framework.

Change-Id: I58202e38445a052fa0556b03f854e75ef836e2dd
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
2016-03-07 19:07:50 +00:00
Luiz Augusto von Dentz
68ee16d85c Bluetooth: GATT: Add bt_gatt_indicate
This uses ATT Indicate Value command to indicate changes and wait for
confirmation response.

Change-Id: I123a00e374929d779f96a02440215c32c0e79423
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2016-03-07 16:44:15 +00:00
Baohong Liu
29c8f95ec4 drivers: framework for a generic flash driver
The framework for a generic flash driver.

Change-Id: I030eb6d88338f4d6611fc6e5cae42ac586cfdb12
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
2016-03-07 16:13:15 +00:00
Shaul Triebitz
74e8445003 pci: Fix PCI header initialization
The arguments to memset in pci_header_get were passed in the wrong
order, causing the memset to be a no-op. Fix this.

Change-Id: I1ea6d7d87d74cff6fec9bbc88c99a4b0e460cc95
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
2016-03-07 15:29:00 +00:00
Andrei Emeltchenko
ba169c5819 drivers/nble: Implement NBLE GATT discover response
Implement GATT nble_gattc_disc_rsp() function, may be tested with
bluetooth shell app.

Change-Id: I80c9596e83310902de40f6e91d2ecd4b5d2f3292
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2016-03-05 19:42:00 +00:00
Sergio Rodriguez
b47df6e800 adc: QMSI ADC driver
This creates the QMSI ADC driver which is simply a shim driver based
on the ADC driver provided by QMSI BSP.

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_ADC=y
CONFIG_ADC_QMSI=y

Optionally this can be set:
CONFIG_ADC_IRQ
CONFIG_ADC_PRI
CONFIG_ADC_QMSI_POLL
CONFIG_ADC_QMSI_INTERRUPT
CONFIG_ADC_QMSI_CALIBRATION
CONFIG_ADC_QMSI_CLOCK_RATIO
CONFIG_ADC_QMSI_SERIAL_DELAY
CONFIG_ADC_QMSI_SAMPLE_WIDTH

Origin of the file: This file has been created from scratch

Change-Id: Ie04776ac2ed88e56852409070edec568974f8e0d
Signed-off-by: Sergio Rodriguez <sergio.sf.rodriguez@intel.com>
2016-03-05 18:22:32 +00:00
Sergio Rodriguez
d8910a419b pwm: QMSI PWM driver
This creates the QMSI PWM driver which is simply a shim driver based
on the PWM driver provided by QMSI BSP.

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_PWM=y
CONFIG_PWM_QMSI=y

Optionally this can be set:
CONFIG_PWM_QMSI_NUM_PORTS=Number of ports available, default is 1

Origin of the file: This file has been created from scratch

Change-Id: Icac90154d020babca1c11147056a3438b84b0d3f
Signed-off-by: Sergio Rodriguez <sergio.sf.rodriguez@intel.com>
2016-03-05 18:22:03 +00:00
Daniel Leung
e643cede3a uart: add ISR callback mechanism for UART drivers
The peripherals utilizing UART were required to register their own
ISR rountines. This means that all those peripherals drivers need
to know which IRQ line is attached to a UART controller, and all
the other config values required to register a ISR. This causes
scalibility issue as every board and peripherals have to define
those values.

Another reason for this patch is to support virtual serial ports.
Virtual serial ports do not have physical interrupt lines to
attach, and thus would not work.

This patch adds a simple callback mechanism, which calls a function
when UART interrupts are triggered. The low level plumbing still needs
to be done by the peripheral drivers, as these drivers may need to
access low level capability of UART to function correctly. This simply
moves the interrupt setup into the UART drivers themselves. By doing
this, the peripheral drivers do not need to know all the config values
to properly setup the interrupts and attaching the ISR. One drawback
is that this adds to the interrupt latency.

Note that this patch breaks backward compatibility in terms of
setting up interrupt for UART controller. How to use UART is still
the same.

This also addresses the following issues:

() UART driver for Atmel SAM3 currently does not support interrupts.
   So remove the code from vector table. This will be updated when
   there is interrupt support for the driver.
() Corrected some config options for Stellaris UART driver.

This was tested with samples/shell on Arduino 101, and on QEMU
(Cortex-M3 and x86).

Origin: original code
Change-Id: Ib4593d8ccd711f4e97d388c7293205d213be1aec
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-05 13:37:57 +00:00
Daniel Leung
f8bf86c95f uart: serial_ns16550: exclude driver data variables under #ifdef
Not all of the variables defined in the driver data structure are
required. So put some #ifdef around them.

Change-Id: I08a0c02d9e5c6885d9b4d6237446bdb9b98f3bfa
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-05 13:37:48 +00:00
Daniel Leung
a702e6f5d8 i2c: i2c_atmel_sam3: meet minimum timing requirements
The I2C has minimum timing requirements for clock signal.
This patch adds the code to make sure the minimum timing
requirements are met.

Change-Id: I3f148433e60be73866577fbe614b892481d7f69d
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-05 13:36:02 +00:00
Daniel Leung
94cb883140 i2c: i2c_atmel_sam3: tweak the transfer flow for NACK and STOP
() Fixed an issue where STOP would be sent twice when a read message
   is only 1 byte.
() Skip resetting the controller when NACK is received. This is not
   an issue with the controller, so there is no need to reset
   the controller and its state machine.
() Cosmetic changes to trim lines > 80 characters.

Change-Id: If2c3b2728b3f088f7aa1fcaa6d2303ff5c4c197d
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-03-05 13:36:02 +00:00
Johan Hedberg
0efd558cbc SPI: Change read/write buffer pointers to void *
There's no reason to require callers to cast their data to uint8_t *
when the data might e.g. originate in a packed struct or some other
data type. Instead, be nice to callers and let them use any pointer
they want. Additionally, declare the TX buffer as a const pointer so
unnecessary typecasts aren't needed for that either (if the data
originates in a const location).

Change-Id: I1482ca4e350b5a7fbda6871ed9f54f255af3aa9e
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-03-04 20:13:21 +00:00
Johan Hedberg
8708b73c65 drivers/spi: intel: Fix typo in DBG log
This log is in spi_intel_configure, not in spi_intel_transceive.

Change-Id: I5d62dd63d0cfa2c86f2dd5f9a6d367b7ad47b355
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-03-04 20:13:21 +00:00
Johan Hedberg
7c5563fd3a drivers/spi: dw: Fix unaligned access
The buffers aren't guaranteed to be aligned so that they're always
aligned for uint16_t or uint32_t data. Use the available unaligned
access macros to read/write the data.

Change-Id: Ie87c108aa370af196b9c759b59ed7fb9d1ed6183
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-03-04 20:11:57 +00:00
Andrew Boie
24f6f36ad6 system_apic: rename irq_enable/disable
Make this explicit to conform to the abstraction layer
defined in include/irq.h

This only worked before because the preprocessor was
substituting the function prototypes.

Change-Id: Id4d46b01f1c53c3a942772640023e23796eeb43b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-03-04 18:52:53 +00:00
Vlad Lungu
616bf84db1 spi: intel: fix write failures at low speeds
When configured at a frequency of 2MHz, a transaction writing
3 bytes and reading 1 byte fails silently (last byte cannot be
read back from the device). Enabling CONFIG_SPI_DEBUG fixes the
issue.

Scope traces show that the transaction (from /CS assert to /CS
deassert)  takes 14us and there is activity on the MOSI line
after /CS is deasserted. A transaction writing 2 bytes and reading
3 bytes take 22us.

The issue is due to the fact that completed() deasserts /CS after
the driver has put 3 bytes in the TXFIFO and taken 1 byte from RXFIFO.
Just because the last byte made it to the TXFIFO, it doesn't mean that
it was put on the MOSI line.

The fix:
For a transaction sending T bytes and expecting R bytes, let N=max(T,R).
Send exactly N bytes and wait for exactly N bytes (or an error). This
way, we are sure that all the bytes were sent to the target device.

Also:
Stop calling pull_data() after every byte sent, it might take a while
for a byte to show up in RXFIFO.
If RFS bit is set, stop sending bytes (will be really useful with a
bigger RFT).
Flushing RXFIFO in spi_intel_transceive() is not needed anymore.

Change-Id: Ifb06a12b03e3e20d6ace4d9f3a20fc11ec3bb010
Signed-off-by: Vlad Lungu <vlad.lungu@windriver.com>
2016-03-03 11:00:45 +00:00
Vlad Lungu
99cb8a6ab4 spi: intel: fix typo in port 1 configuration
Remove semicolon that triggers a build failure
when CONFIG_SPI_INTEL_PORT_1=y

Change-Id: Iea49d44059377cf9eb0b5b5e14b625cb316a65bb
Signed-off-by: Vlad Lungu <vlad.lungu@windriver.com>
2016-03-03 11:00:45 +00:00
Jukka Rissanen
bf2c827dcf Revert "cc2520: Rework reception logic"
This reverts commit bf77d902ac.

The commit is reverted because it causes hangs in packet
reception. After transferring data a while, the chip stops
packet reception.

Change-Id: Icb94e978e3ba526314afd5e80f35c877febe8740
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-03-01 14:22:46 +02:00
Jukka Rissanen
7795ec4435 Revert "cc2520: Turn off auto ACK"
This reverts commit e695d43fad.

This commit allows reversal of the commit
bf77d902ac which is called
"cc2520: Rework reception logic". Original code had auto ACK
turned off so we can revert this commit too.

Change-Id: Ic4979d1caa0f4341b9642d8a83ee65cf71562994
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-03-01 14:22:04 +02:00
Ravi kumar Veeramally
5913dc0cd4 cc2520: Fix resetting of CC2520_EXCFLAG0
setreg(CC2520_EXCFLAG0, 0) is in print_radio_status(), it should
be in print_exceptions_0().

Change-Id: I62bd366b850f0a1abef651cfa8de8939b6c30685
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2016-02-26 15:38:38 +00:00
Jukka Rissanen
e695d43fad cc2520: Turn off auto ACK
The auto ack does not seem to work properly. I am seeing that
the driver claims to have sent a packet but nothing is seen
in the air. Because of this the auto ACK cannot be turned on
right now as it would break connectivity.

Change-Id: I4e71e14a2058cc4f64740a8f4b390ba21a01cb23
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2016-02-26 14:44:08 +00:00
Tomasz Bursztyka
bf77d902ac cc2520: Rework reception logic
Setting the highest possible threshold is bogus. It will certainly work
well when packet are small, but it will be very easy to overflow RX FIFO
when these are big (which happens when a big packet is fragmented).

Instead:
- setting the threshold to the bare minimum (len + header)
- reading is made into a loop based on RX FIFO counter

Taking the opportunity to:
- Reset exceptions once printed out
- Print out "Transmitted!" instead of unbearable status

Change-Id: I8d77b88756d5c3fb42d4d0d38dd0296569db07ad
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2016-02-25 14:02:50 +01:00
Tomasz Bursztyka
988c6e9e08 cc2520: Remove useless gpio logic
cc2520 does not need to clear any gpio interruption as it does not deal
with the low level gpio hardware directly.

Change-Id: Ic568e817b23b879cdf7da791417a4a6e1f95d34a
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2016-02-25 14:02:43 +01:00
Tomasz Bursztyka
6f95960c2c cc2520: Flushing RX FIFO is done through one SFLUSHRX instruction
Removing unnecessary legacy logic.

Change-Id: I658e126d90e7f6151b77089a10b98c9071b6abd2
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2016-02-25 14:02:40 +01:00
Tomasz Bursztyka
fd3adeaabe cc2520: 7th bit of the packet length should not be interpreted
There is no such thing as being out of sync.
1 - RX FIFO is always flushed before receiving anything.
2 - So whatever comes in, if it was rejected the hardware would not set
FIFOP high (we are on high threshold, see page 83).
3 - According to 802.15.4 specs, length cannot be bigger than 127, so
7th bit of the length should never be set. However, and for some reason,
it happens to be set (noise, memory glitch?). According to datasheet
page 75, masking this bit is useful then. The hardware does it for
itself when filtering, and that does not affect the buffer content, so
it's also up to the driver to mask it as well.

Change-Id: I30b878852076c0c9d3a92b490aaf37f826ab4541
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2016-02-25 14:02:35 +01:00
Andre Guedes
536d6ec396 i2c: Remove default value from platform-specific options
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>
2016-02-24 14:34:24 -03:00
Andre Guedes
1eaaa6434b spi: Remove default value from platform-specific options
This patch removes the default value from some platform/SoC specific
options which are declared in drivers/spi/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: Ic992749b3210ed8a2e454edece41ceca5edbaf2e
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-02-24 14:26:23 -03:00
Andre Guedes
55e93f203c gpio: Remove default value from platform-specific options
This patch removes the default value from some platform/SoC specific
options which are declared in drivers/gpio/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: Id00f7907fa55025011dabce6e282a9623be23831
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-02-24 17:05:52 +00:00
Peter Mitsis
06e2b4e129 nanokernel: Change fiber_delayed_start() return type
Instead of returning a 'void *', the nanokernel fiber_delayed_start()
family of routines now return a handle of type nano_thread_id_t.

Consequently, the nanokernel fiber_delayed_start_cancel() family of
routines now accept a parameter of type nano_thread_id_t instead of
'void *'.

The complete list of affected nanokernel routines is:
    fiber_delayed_start()        fiber_delayed_start_cancel()
    fiber_fiber_delayed_start()  fiber_fiber_delayed_start_cancel()
    task_fiber_delayed_start()   task_fiber_delayed_start_cancel()

Change-Id: Ibd4658df3ef07e79a81b7643a8be9ea5ffe08ba0
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
2016-02-23 10:48:54 -05:00
Johan Hedberg
bab3b49fdb Bluetooth: Change GATT callback return values to ssize_t
Since the return value of these callbacks is a number of bytes ssize_t
is more appropriate than int.

Change-Id: I3406fb382975d62f51e7a195666d0ae88364fd2c
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-02-20 15:39:33 +00:00
Tomasz Bursztyka
ec678375a3 spi: dw: Quark SE Sensor Sub-System support
Though it's an ARC core, Quark SE SS does not follow the same registers
mapping as the official DesignWare document. Some parts are common, some
not.

Instead of bloating spi_dw.c with a lot of #ifdef or rewriting a whole
new driver though the logic is 99% the same, it's then better to:
 - centralize common macros and definitions into spi_dw.h
 - have a specific spi_dw_quark_se_ss_reg.h for register map, clock
   gating and register helpers dedicated to Quark SE SS.
 - have a spi_dw_regs.h for the common case, i.e. not Quark SE SS.

GPIO CS emulation and interrupt masking ends up then in spi_dw.h.
Clock gating is specific thus found in respective *_regs.h header.

Adding proper interrupt masks to quark_se_ss soc.h file as well.

One of the main difference is also the interrupt management: through one
line or multiple lines (one for each interrupt: rx, tx and error). On
Quark SE Sensor Sub-System it has been set to use multiple lines, thus
introducing relevant Kconfig options and managing those when configuring
the IRQs.

Quark SE SS SPI controller is also working on a lower level, i.e. it
requires a tiny bit more logic from the driver. Main example is the data
register which needs to be told what is happening from the driver.

Taking the opportunity to fix minor logic issues:
- ICR register should be cleared by reading, only on error in the ISR
  handler, but it does not harm doing it anyway and because Quark SE SS
  requires to clear up interrupt as soon as they have been handled,
  introducing a clear_interrupts() function called at the and of the ISR
  handler.
- TXFTLR should be set after each spi_transceive() since last pull_data
  might set it to 0.
- Enable the clock (i.e. open the clock gate) at initialization.
- No need to mask interrupts at spi_configure() since these are already
  masked at initialization and at the end of a transaction.
- Let's use BIT() macro when relevant.

Change-Id: I24344aaf8bff3390383a84436f516951c1a2d2a4
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2016-02-20 15:39:16 +00:00
Andre Guedes
424cd841e2 spi: Enable QMSI driver for Quark D2000
This patch fixes the QMSI SPI shim driver so we are able to use it in
Quark D2000 based platforms. The only change required to enable this
driver is an #if guard in spi_qmsi_init() because the macro QM_SPI_MST_1
and the function qm_spi_master_1_isr are not defined in QMSI headers
from Quark D2000.

Since this drivers is now properly working on Quark D2000, this patch
also sets the QMSI driver default options in arch/x86/soc/quark_d2000/
Kconfig.

Change-Id: Ic6e2f7f5a2c3f350ddf360b23ffab6b812948572
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-02-20 14:57:45 +00:00