Commit graph

313 commits

Author SHA1 Message Date
Savinay Dharmappa
0ea423d976 drivers: serial: Add device support for serial driver
patch enables qmsi serial driver to pick baudrate and name
from device tree instead of Kconfig for UART0 and UART1
instance

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2017-06-22 10:23:39 -05:00
Inaky Perez-Gonzalez
271c518ec6 uart_esp32: alter the uart.h include order to avoid warning
The esp-idf package contains on the BSP a definition of the BIT macro
unconditionally #defined when rom/uart.h is #included. When Zephyr's
uart.h (which pulls in include/misc/util.h) that conditionally

This generates a compile warning on the re-definiton of BIT by the
esp-idf package.

Thus include uart.h after esp-idf's rom/uart.h to have BIT not
re-defined thanks to Zephyr's conditional definition.

Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
2017-06-21 19:05:19 -04:00
Ivan Grokhotkov
d58d5d1265 xtensa: esp32: configure default UART using ROM functions
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-06-21 12:35:49 -04:00
Leandro Pereira
37ea77173c drivers: esp32: Add minimal UART driver based on ROM routines
This is a minimal driver enabling console output during the port
bringup.  While the driver works, only one of the three UART devices
are supported, and there isn't any way to change any parameters or
use interrupts.  This will most likely be superceded by a proper
driver after the port has matured.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-06-21 12:35:49 -04:00
Anas Nashif
397d29db42 linker: move all linker headers to include/linker
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-06-18 09:24:04 -05:00
Geoffrey Le Gourriérec
4c24b1d857 uart: Use DTS labels for Stellaris driver.
Update driver to use DTS-generated #defines for port names,
and not obsolete Kconfig variables.

Signed-off-by: Geoffrey Le Gourriérec <geoffrey.legourrierec@smile.fr>
2017-06-16 16:18:12 -04:00
Geoffrey Le Gourriérec
6341258ef5 drivers: serial: uart_stellaris: Remove UART_IRQ_FLAGS
We always have UART_IRQ_FLAGS set to 0, so just call IRQ_CONNECT with a
0 argument for the flags, and remove the UART_IRQ_FLAGS.  This is
towards support for using the driver on the TI CC2650.  (we add a
comment about that as well).

Signed-off-by: Geoffrey Le Gourriérec <geoffrey.legourrierec@smile.fr>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-06-16 16:18:12 -04:00
Jens Peter Schroer
b676bfafc8 drivers: serial: uart_fe310: fix function definiton name for UART1 IRQ
This commit fixes the compilation error that occurs if both UART
ports on the FE310 SoC are enabled. The error occurs due to the
missing function definition of uart_fe310_irq_cfg_func_1 .

Signed-off-by: Jens Peter Schroer <jens@manetos.com>
2017-06-07 12:17:15 -05:00
Erwan Gouriou
9413c8ba4d stm32: clean up after completion of transition to ll Clock control
Following migration of stm32f1xx series clock control driver to
STM32Cube LL API, cleanup stm32 code base in order to take into
account that this is the only clock driver available for stm32
family.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-06-02 14:11:13 -04:00
Piotr Mienkowski
dffc06ddd2 drivers: serial: deprecate usage of atmel_sam3 driver
Atmel SAM3X series has been recently converted to use ASF
and should now use common SAM family drivers. The atmel_sam3
serial driver will be removed in the future.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2017-06-02 14:11:13 -04:00
Piotr Mienkowski
ba50782db2 drivers: uart_sam: Configure TX pins for SAME70 only
Limit visibility of configurable TX pins to SAME70 series only.
Previously visibility of configurable SAME70 TX pins extended
to the full SAM family.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2017-05-19 10:06:48 -04:00
Piotr Mienkowski
ee66ee6c34 arch: sam3x: Use ASF library
This patch converts Atmel sam3x MCU series to use register
header files from Atmel Software Framework (ASF) library.
By using ASF different Atmel SAM MCU series can use common
device drivers.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2017-05-19 10:06:48 -04:00
Kumar Gala
983e6a56fb arm: atmel: sam3: dts: use label to generate Atmel SAM3 uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the Atmel SAM3 UART out of the device
tree instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
22874ef301 arm: ti: stellaris: dts: use label to generate TI Stellaris uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the TI Stellaris UART out of the device
tree instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
f13af29741 arm: ti: cc32xx: dts: use label to generate TI CC32xx uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the TI CC32xx UART out of the device
tree instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
d88d4f90a5 arm: cmsdk_apb: dts: use label to generate ARM CMSDK APB uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the ARM CMSDK APB UART out of the device
tree instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
a746bcd56d arm: nxp_kinetis: dts: use label to generate NXP Kinetis uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the NXP Kinetis UART out of the device tree
instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
29a6053a0d arm: nrf: dts: use label to generate NRF uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the NRF UART out of the device tree
instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
bb2c32428b arm: stm32: dts: use label to generate STM32 uart name
Now that we can utilize label in the device tree we can convert to
getting the device name for the STM32 UART out of the device tree
instead of from Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Kumar Gala
748f724d82 serial: dts: remove !HAS_DTS related Kconfig
As we now only support DTS for ARM based SoCs we can remove any
associated !HAS_DTS bits in Kconfig.  The Nordic NRF5 serial driver and
the ARM CMSDK APB serial drivers had Kconfig bits related to !HAS_DTS
builds.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-05-19 10:06:48 -04:00
Florian Vaussard
a327de30cf serial: stm32: Add support for U(S)ART4/5/6/7/8/9/10
Add support for U(S)ART 4 to 10 that can be found at least on some
members of the STM32F4 family.

Change-Id: Ie870492511f885005cf023040e498bd4d800e807
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
2017-05-15 13:22:54 -04:00
Florian Vaussard
f27a5a3d6a serial: stm32: Use macro to simplify registration
The registration of each serial port differs only by a few details.
These differences can be factorized in order to create a generic
registration macro.

This has several advantages:
- Less code
- Easier to add new ports
- Less work to add support for new STM32 families

Change-Id: I6e62a96ccbbf03c9d51bc2617db6a851ff0d83c7
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
2017-05-15 13:22:54 -04:00
Paul Sokolovsky
0fdc9b5b12 drivers: serial: Clarify usage of TX/RX IRQ predicates.
uart_irq_tx_empty() function proved to be problematic: its semantics
was not documented properly, and many hardware uses terminology like
"TX register empty" to signify condition of TX register being ready
to accept another character (what in Zephyr is tested with
uart_irq_tx_ready()). To avoid confusion, uart_irq_tx_empty() was
renamed to uart_irq_tx_complete(), propagating to drivers/serial
device methods.

The semantics and usage model of all of uart_irq_rx_ready(),
uart_irq_tx_ready(), uart_irq_tx_complete() is now described in
detail.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2017-05-13 10:57:31 -04:00
Paul Sokolovsky
2506e2738e stm32: Don't perform any side effects in irq_update().
The purpose of irq_update() is to cache value of UART IRQ status
register for devices which needs such caching. No other driver
performs any other side effects in this call. For STM32, clearing
TC (tx complete) bit was introduced in 8c079e91c9
which is otherwise titled as a conversion to STM32Cube HAL. Thus,
there does not seem to be specific reasons why this code was added.
On the other hand, it leads to behaviorial artifacts when dealing
with interrup-driven UART code (specific issue seen was delaying
of transmitting every other character).

Change-Id: Id20bf214b36eeb6c09e29cc2e6bfca4f7221a1a4
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2017-05-04 09:48:08 -05:00
Justin Watson
558281b096 arch: sam3x: update Kconfig options after move to SAM SoC family tree
The files for the Arduino Due needed to be updated to use the new
configuration when the SoC moved from the atmel_sam3 directory to
the atmel_sam/sam3x directory.

Jira: ZEP-2067

Signed-off-by: Justin Watson <jwatson5@gmail.com>
2017-05-03 13:51:37 -04:00
Kumar Gala
ac0bb050dd arm: dts: ti_lm3s6965: Add device tree support for Stellaris UART
Converted Stellaris UART driver over to utilize device tree generated
defines.  Added a yaml description for the uart, and converted over the
ti_lm3s6965 SoC & qemu_cortex_m3 board port over to utilize it.

Change-Id: Ie20844eb63d2c68eb59ad4160f7f5b5a35e2943b
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-28 15:26:40 -05:00
Kumar Gala
749e02f6ea serial: uart_stellaris: remove export of uart_stellaris_isr
There isn't any reason to export the uart_stellaris_isr function, so
lets make it static and remove the associated header file.

Change-Id: I3a131b584d9d6fb6279a1503512668a71510dd4d
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-28 15:26:40 -05:00
Kumar Gala
ed467a695a serial: mcux: Shim driver for LPSCI UART on KL25Z
Adds a shim layer around the mcux lpsci driver to adapt it to the Zephyr
serial interface.

Change-Id: I024f1605e3194f34bb57e8a121900e05b3085a82
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-28 15:26:38 -05:00
Erwan Gouriou
424c33825c driver: uart: clock control code refactoring
Small code refactorisation in order to ease up coming
support of stm32f1 series by stm32 commom clock control
driver

Change-Id: I486cfba137cd048d65f0732e10aa29d877bb03e5
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-04-28 15:26:11 -05:00
Erwan Gouriou
242ed389a3 stm32f4: Clean references to stm32f4 specific clock control
Following activation of stm32 common clock driver for stm32f4 series
remove references to stm32f4 specific driver.

Change-Id: I372a0ea046007bcb34944d6b2b8880077583b1d3
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-04-28 15:26:11 -05:00
Erwan Gouriou
9bd2a42d60 dts: Align uart "baud-rate" property to device tree spec "current-speed"
Devicetree.org specifies that serial devices property used to set
baud rate is "current-speed", while zephyr uses "baud-rate".
Align property name in order to keep zephyr dts files compatible
with device tree specification and could be re-used from/to
Linux for instance.  We also cleanup a few SoCs that set "baud-rate" in
the SoC dts and not the board.

Jira: ZEP-2048

Change-Id: I097e7439ee46fe77c628b56531772950382fafcc
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-28 15:06:40 -05:00
Paul Sokolovsky
abf284e9fd Revert "serial: stm32: Give H/W a chance to set the TXE bit on transfer"
Don't busy-wait in uart_stm32_fifo_fill(), this routine is supposed
to be called on IRQ, and the waiting loop was shown to interfere
with interrupt-driven UART handling.

The original problem mentioned in the patch being reverted ("it is
possible to evaluate the TXE bit *before* H/W has had the
opportunity to detect that data is being processed") may still
exist and may require handling in a different way. The most obvious
way is to replace "while" loop with "if", because STM32 doesn't
have multi-level FIFO anyway. But I was dissuaded to include such a
change as part of this patch, so it's left for future analysis.

This reverts commit 49c2858d94.

Change-Id: Ib27b53ba3a29b84c1a2dccff6d33f4118680cc19
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2017-04-27 15:19:59 +00:00
Kumar Gala
ccad5bf3e3 drivers: convert to using newly introduced integer sized types
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.

Jira: ZEP-2051

Change-Id: I08f51e2bfd475f6245771c1bd2df7ffc744c48c4
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-21 10:06:48 -05:00
Kumar Gala
789081673f Introduce new sized integer typedefs
This is a start to move away from the C99 {u}int{8,16,32,64}_t types to
Zephyr defined u{8,16,32,64}_t and s{8,16,32,64}_t.  This allows Zephyr
to define the sized types in a consistent manor across all the
architectures we support and not conflict with what various compilers
and libc might do with regards to the C99 types.

We introduce <zephyr/types.h> as part of this and have it include
<stdint.h> for now until we transition all the code away from the C99
types.

We go with u{8,16,32,64}_t and s{8,16,32,64}_t as there are some
existing variables defined u8 & u16 as well as to be consistent with
Zephyr naming conventions.

Jira: ZEP-2051

Change-Id: I451fed0623b029d65866622e478225dfab2c0ca8
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-20 16:07:08 +00:00
David B. Kinder
896cf7a00a spell: fix doxygen comment typos: /drivers
Fix doxygen comment typos used to generate API docs

Change-Id: I6fd5051c99bdcc731740c92001e525349c254d85
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2017-04-19 10:45:34 -07:00
Piotr Mienkowski
34c16ad2f7 drivers: Add Atmel SAM serial (UART) driver
Added serial (UART) driver for Atmel SAM MCU family.

Note:
- Error handling is not implemented
- The driver works only in polling mode, interrupt mode is
  not implemented.

Tested on Atmel SMART SAM E70 Xplained board

Origin: Original

Jira: ZEP-1959
Change-Id: I3e770fd1feb2ddf92cf405a9aa17be92eb32e19b
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2017-04-14 05:56:54 -05:00
Kumar Gala
77f65b907f arm: dts: Add DTS support for NRF52832 SoC
Add plumbing to build system and SoC level dtsi for the NRF52832 SoC.
We additionally add the necessary yaml files for the UART on the NRF52
SoCs.

Change-Id: I3b4a821b2993827e33d8e84bdbbc759d1521f8bd
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-14 05:56:54 -05:00
Kumar Gala
621ba596b9 serial: stm32: remove bits related to !HAS_DTS
Now that all STM32 platforms are using device tree we can remove the
handling for !HAS_DTS from the serial driver.

Change-Id: Ifafc283f2509dd9a438f321e0b647720d4f13810
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-14 05:56:53 -05:00
Kumar Gala
27d74d8ad2 serial: mcux: remove bits related to !HAS_DTS
Now that all NXP MCUX platforms are using device tree we can remove the
handling for !HAS_DTS from the serial drivers.

Change-Id: I05185142afa7fae83ce68de954202829868af88f
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-14 05:56:53 -05:00
Gil Pitney
9b12803bf7 cc3200: Resolve DTS fixup.
As part of the transition to Device Tree, a temporary
HAS_DTS configuration variable, and a .fixup file per board
with symbol aliases were added.

This patch removes the cc32xx related fixup file
definitions, except for those used additionally outside
the cc32xx drivers.

Since cc32xx has DTS files, and since HAS_DTS will always be true,
it also removes the 'if !HAS_DTS' blocks from the cc32xx Kconfig
files.

Change-Id: I1c1b9f734795f523342f82ab32f2a38983812c0b
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-04 17:55:12 -05:00
Gil Pitney
ed1ba1e1a5 cc3200: Move pinmux and UART initialization to PRE_KERNEL_1
Previously, cc3200_launchxl board was not able to show the
Zephyr Boot Banner, as that required early initialization
of the UART driver, which was done POST_KERNEL.

This patch moves the pinmux and UART driver initialization
to PRE_KERNEL_1, allowing early printk, and the Boot Banner
to show.

Change-Id: I84a7c20c1d5bdc3de150dc6bb0adebc9a2d9f5cb
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
2017-04-04 17:55:12 -05:00
Jean-Paul Etienne
a916cf7e19 serial: added support for the SiFive Freedom E310 UART driver
Change-Id: I7552b316bd328c67eabb1dbf62342cb9b663845a
Signed-off-by: Jean-Paul Etienne <fractalclone@gmail.com>
2017-04-02 15:15:21 +00:00
Lee Jones
9aeb6f895d serial: stm32: Move to more traditional formatting
Providing a new line, then an attribute on the same line as the
following closing bracket is odd.  Move to something more
transitional and in line with regular coding standards.

Change-Id: I08f7cd76ca2f522a8b5b6de2e5baf94e95b5195a
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-30 12:59:48 +01:00
Lee Jones
49c2858d94 serial: stm32: Give H/W a chance to set the TXE bit on transfer
It is possible to evaluate the TXE bit *before* H/W has had the
opportunity to detect that data is being processed.  Therefore
we should hold off on any evaluation until TXE has initially been
set.

Change-Id: Iff26bfbe3ab419734003bf81a4cb357de83908e7
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-30 12:59:48 +01:00
Florian Vaussard
a57df869b4 serial: stm32: Properly put Kconfig options in their own submenu
Currently the entries for STM32 UART ports are at the same level than
the top menuconfig UART_STM32. As a result they are mixed with other
configs in the "Serial Drivers" menu.

Use if/endif grammar to put these entries under a dedicated STM32
submenu.

Change-Id: If28945204b801578d29f8cce7c2370ca3c2737a1
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
2017-03-27 09:05:57 -05:00
Gustavo Denardin
ad235dc24b arm: UART driver modifications for MKL25Z soc support
Since all interrupts come in on the status line,
we only connect it for the KL2X.

Change-Id: Ia9e0d483fe68464a0eeab08c95a043260e5793b0
Signed-off-by: Gustavo Denardin <gustavo.denardin@gmail.com>
2017-03-27 09:05:57 -05:00
Vinayak Chettimada
853fd133c1 drivers: serial: nrf5: Fix system off pin configuration
To secure correct signal levels on the pins by the UART when
the system is in OFF mode, the pins must be configured in
the GPIO peripheral as described in nRF5 Product
Specification.

UART Pin, Direction, Output Value:
RXD, Input, NA
CTS, Input, NA
RTS, Output, 1
TX, Output, 1

This commit sets the RTS line to a initial value of 1.

Change-id: I5147fe58033f42c979b9354798b6fd13d78f7f71
Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
2017-02-27 21:02:20 +00:00
Erwan Gouriou
726d4dc437 drivers: stm32: clean up after stm23cube based clock control
After activation of cube based driver support on L4 and F3 series,
this commits performs the clean up of F3 and L4 relative code to
native clock control drivers.
Indirectly, it makes pwm driver supported de facto on F3 series

Change-Id: Idac17103a9b5ef6eab540719343cc8f5865f15fa
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-02-10 14:47:41 -06:00
Erwan Gouriou
8c4f2a353f uart: update stm32 uart to support LL clock control driver
After introducing STM32Cube based clock control driver for
stm32 family, update stm32 serial driver to support it.
Once supported across the whole family, a clean up will be done.

Change-Id: I7100bc699e7918c8be71d58091da1860ab734e25
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2017-02-10 14:47:41 -06:00
Bogdan Davidoaia
5b02ba8319 kw41z: add base DTS support
This patch adds the base DTS support for the KW41Z Freedom board. The
initial set of changes include SRAM, FLASH, IRQ controller and LPUART
support.

Change-Id: Ic68c4959ddad0c5cfe70d5576a0e58372b93ec9d
Signed-off-by: Bogdan Davidoaia <bogdan.davidoaia@linaro.org>
2017-02-10 18:14:05 +00:00
Vincenzo Frascino
0da2a03234 v2m_beetle: uart: Add DTS support to UART driver
This patch adds DTS support to the ARM CMSDK UART driver.  The DTS
currently specifies the IRQ, IRQ PRIO, and base address of the port.

Change-Id: I8e5bc81c013958be4297d563495bf126b53a83a9
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-02-10 18:14:04 +00:00
Andy Gross
670aa0cc99 stm32: uart: Add DTS support to STM32 UART driver
This patch adds device tree support to the STM32 UART driver.  The base
address, interrupt, and interrupt priority values can now come from DTS.

Change-Id: I3c383da8b200037601ecb2dc087f99ef103761bb
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-02-10 18:14:02 +00:00
Gil Pitney
b465fbe312 cc3200: Enable device tree usage for CC3200
This patch ifdef's out information that would be redefined by
information generated from DTS.  This patch also fixes up the serial
drives to work properly with the DTS generated information.

Change-Id: I912ccf35be23c107705a4866e5a68b3b51154ffa
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-02-10 18:14:01 +00:00
Andy Gross
ddce7dea40 dts: arm: Kinetis: Add base support for Kinetis
This patch adds DTS support and related files for the NXP Kinetis
platform.  The DTS files contain the base definitions for the hardware
nodes on Kinetis platforms.  The YAML files provide the definitions of
the contents of the DTS nodes.

The Kconfig changes were put in place to allow for the conversion of
existing drivers.  Once those drivers are modified, the Kconfig options
that are replaced by the DTS information will be removed.

Change-Id: If110fffa99c0b12471cf2df206da6687277e4756
Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-02-10 18:13:59 +00:00
Juan Solano
ee623d21de drivers: Remove unnecessary CONFIG_SYS_POWER_DEEP_SLEEP
This commit removes unnecessary CONFIG_SYS_POWER_DEEP_SLEEP protection
in shim drivers as QMSI 1.4 has introduced empty context save/restore
functions that can be called in Quark D2000, therefore keeping common
code at the shim driver level for Quark SE and D2000.

Change-Id: Ia2a466327f999668c6511c0193014e9151bff6ae
Signed-off-by: Juan Solano <juanx.solano.menacho@intel.com>
2017-02-10 16:27:32 +00:00
Piotr Mienkowski
9d1c6de608 drivers: Add basic Atmel SAM USART driver
Added basic USART driver for Atmel SAM MCU family. USART is a very
comprehensive module, currently only basic features sufficient to
support printf functionality are implemented by this driver.

Tested on Atmel SMART SAM E70 Xplained board

Origin: Original

Jira: ZEP-978
Change-Id: Ia9710e4069243fb6c30de45953dfc1fe1266b63a
Signed-off-by: Piotr Mienkowski <Piotr.Mienkowski@schmid-telecom.ch>
2017-02-01 21:01:18 +00:00
Maureen Helm
e290006144 serial: Introduce new mcux lpuart shim driver
Adds a shim layer around the mcux lpuart driver to adapt it to the Zephyr
serial interface.

NXP has multiple uart hardware blocks that implement different features
and have different register maps. The k64 has a uart block called
'uart', while the kw41 has a uart block called 'lpuart' (low power
uart). The MCUXpresso SDK provides separate drivers for each type of
uart block but with similar software interfaces. As a result, there are
also separate shim drivers in Zephyr. There is a 1:1:1 relationship
between hardware block, mcux driver, and mcux shim driver.

Because we now have two mcux shim drivers for the uart interface, a new
naming convention is created:

	<interface>_mcux_<hw block>

Where <interface> is the name of the Zephyr interface, in this case
'uart'. This convention is not new.

<hw block> is the name of the NXP hardware block, in this case 'lpuart'.
This is the new part, and distinguishes different hardware blocks
for the same interface.

Change-Id: I3a80b9bffa116bbb2b02ee950d4bdd79a19a4edc
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2017-01-30 11:02:35 -06:00
Maureen Helm
82eaa7cd5b gpio: serial: Fix NXP copyright
The NXP copyright should not have 'Semiconductors, Inc' in it.

Change-Id: I6e290146d49bf22d1d40b7fa764bb53b6b122303
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2017-01-23 15:15:53 -06:00
Maureen Helm
294fdab7bd serial: k64: Remove the uart_k20 driver
Now that we have a more generic mcux serial driver, remove the uart_k20
driver.

Jira: ZEP-719
Change-Id: I51a3237454140feabbfe18ac2c8ee451e572c7be
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2017-01-23 15:15:53 -06:00
Maureen Helm
38f812828e serial: Introduce new mcux shim driver
Adds a shim layer around the mcux uart driver to adapt it to the Zephyr
serial interface. Unlike the existing (and confusingly-named) uart_k20
driver, this driver can be used for k64 and other Kinetis SoCs.

Implements polling and interrupt-driven serial interface functions that
are logically equivalent to the uart_k20 driver. Adds an extra instance,
irq_tx_empty(), and err_check() that aren't implemented in the uart_k20
driver.

Jira: ZEP-719
Change-Id: Iab99542e7ec921ef4f361437768113fee01e5fe8
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2017-01-23 15:15:53 -06:00
Kumar Gala
05f717e71b uart/stm32: add STM32F3X support for uart
Change-Id: I9796c6a2841c972eeab15894a6d7f38ae93606d1
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-23 15:15:53 -06:00
David B. Kinder
ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
Jean-Paul Etienne
7cf3688740 serial: added support for the riscv-qemu UART driver
riscv-qemu UART:
1) comprises only one register that is used to send or
   receive characters in a polling fashion.
2) does not have a FIFO and is not interrupt-driven.

Change-Id: I9408f1776eba4cec4aa203a5da759ec04bcddf1f
Signed-off-by: Jean-Paul Etienne <fractalclone@gmail.com>
2017-01-13 19:56:24 +00:00
Jean-Paul Etienne
cfa43f5bda serial: enable 64-bytes FIFO for UART 16750 in uart_ns16550 driver
UART 16750 is basically a UART 16550 with a 64-bytes FIFO.
The 64-bytes FIFO can be enabled via register FCR.

Account for it in the uart_ns16550 driver whenever the
CONFIG_UART_NS16750 variable is set.

Change-Id: I2342b28a41d03c96410bbfbe57e4b5a4e335731d
Signed-off-by: Jean-Paul Etienne <fractalclone@gmail.com>
2017-01-05 16:05:20 +00:00
Flavio Santes
501dd224ad drivers: Add the ARG_UNUSED macro
Add the ARG_UNUSED macro to avoid compiler warnings.

Change-Id: Ia62125b5e93671aa0ab0891c92ae9fa06fadb09b
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
2016-12-21 12:54:52 +00:00
Flavio Santes
0a1c29cda4 driver: Add ARG_UNUSED to console and uart drivers
This patch adds the ARG_UNUSED macros to some function
arguments to avoid compiler warnings.

Change-Id: I628aea55d98cf8519c046ae5835e95cfa70a973f
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
2016-12-21 12:54:47 +00:00
Carles Cufi
3655291d5f boards: arm: Refactor the GPIO and UART dependencies
To make way for the upcoming blinky and GPIO support for nRF5x-based
boards, this change addresses the hardcoded dependencies in Kconfig
default configurations of the different boards, moving the common option
defaults to the SoC default configuration itself.

Change-Id: I8db0750311ad5a12b76237b39438376f20f6f496
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-12-20 09:14:48 -06:00
Carles Cufi
e15c5527ed drivers: serial: nrf5: Undefine MDK macros to avoid conflict
The new Nordic MDK redefines certain UART signal names for backwards
compatibility with the new nRF52840 IC.
This patch addresses the potential name conflict between the redefined
signals and the existing variable names defined in the UART driver.

JIRA: ZEP-1418

Change-Id: I559d9335d2eeaa0a88d3f261b70508a1c98b989d
Signed-off-by: Vinayak Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2016-12-20 09:14:48 -06:00
Jon Medhurst
bcb31523d5 uart_cmsdk_apb: Fix cut'n'paste error in device 4 init code
Change-Id: I2f11dc0da3ad8be970ac15187fb35264ef7dc0e8
Signed-off-by: Jon Medhurst <tixy@linaro.org>
2016-12-16 12:53:52 +00:00
Vincenzo Frascino
1589b7fa5d uart: Enable clock control in CMSDK APB UART driver
This patch enables the clock control interface into the ARM LTD
CMSDK APB UART driver.

Jira: ZEP-1300
Change-Id: Ic0a214beb02d56ffb02ad4e6ca26b80805c0a4e6
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
2016-12-06 10:31:45 -06:00
Erwan Gouriou
0bf6c3860d uart: stm32: Add support for STM32L4X
Deal with STM32L4X additions for clock and interrupt handling to the
uart driver.

Change-Id: I6e8dafb132dafea54b8f31a3a5cb6e35a207574d
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-12-06 10:30:45 -06:00
Erwan Gouriou
2fcf3435c1 serial: Provide new numbering scheme for stm32 UART
There was a misalignment between Zephyr UART device numbering and
SoC UART IP. Device "UART_1" was mapped to IP USART_2, which could
be confusing for user.
This commit allows to align "UART_1" to IP USART_1.
Change is propagated to all STM32F103RB/STM32F401RE based boards and
respective pinmux drivers

Change-Id: Ia8099dfeec7b9c0c686c2a58ccb4dbb1a55b6537
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2016-12-06 09:50:11 -06:00
Erwan Gouriou
8c079e91c9 serial: Provide STM32Cube based serial driver on stm32f1, stm32f4
STM32Cube based implementation allows single driver file for
all stm32 based SoCs.
By maximizing code reuse, use of STM32Cube eases new SoCs
porting into Zephyr and provides better maintanability and
maturity.

Change-Id: Ief4b723add3dfc8b2a839683559c5a4c5d5eb837
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2016-12-06 09:50:11 -06:00
Flavio Santes
b04cdcd6e6 drivers: Remove legacy nanokernel.h include
This commit replaces the nanokernel.h include by kernel.h.

Change-Id: Ib42fbf2d9f77a73c0831f569b3dbbfb342ea2e1d
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
2016-12-04 14:59:37 -06:00
Flavio Santes
290a2aba88 drivers: Remove unused parameter warning
This patch fixes the unused parameter warning found at the
following drivers:

- adc_ti_adc108s102.c
- gpio_dw.c
- gpio_k64.c
- exti_stm32.c
- pinmux_dev_atmel_sam3x.c
- pinmux_dev_k64.c
- pinmux_dev_stm32.c
- uart_atmel_sam3.c

Change-Id: I76a17d19176683130d57e8f48e5195e7785060f3
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
2016-12-03 14:49:08 +00:00
Vincenzo Frascino
bb1818a535 serial: Add driver for CMSDK (Cortex-M System Design Kit) APB UART
Add driver for CMSDK APB UART ports. The driver implements RX and TX
functionalities. Data transmission is implemented using polling and
interrupts. The driver default configuration for the port is to use
8bit data transmission, 1 stop bit, no parity control.

The driver exposes a public uart driver API and allows to register up
to five UART devices: from 'UART_0' to 'UART_4'. The driver performs
the required pinmux, the clock control configuration is left to the
platform.

The driver has been verified to work with the Hello World sample
application on a Beetle Board.

Jira: ZEP-1245
Change-Id: I5baf78b7659aae2a574d8e66205e6fd5eb579133
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-11-11 20:39:54 +00:00
Andrew Boie
0b474eef9c kernel: deprecate old init levels
PRIMARY, SECONDARY, NANOKERNEL, MICROKERNEL init levels are now
deprecated.

New init levels introduced: PRE_KERNEL_1, PRE_KERNEL_2, POST_KERNEL
to replace them.

Most existing code has instances of PRIMARY replaced with PRE_KERNEL_1,
SECONDARY with POST_KERNEL as SECONDARY has had a longstanding bug
where the documentation specified SECONDARY ran before the kernel started
up, but actually ran afterwards.

Change-Id: I771bc634e9caf7f17dbf214a270bc9967eed7d32
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-11-09 17:59:44 +00:00
Maureen Helm
33ee93d7dd serial/uart_k20: Fix instance source clock frequencies
The uart_k20 serial driver incorrectly assumed that all instances of the
UART peripheral are driven by the system clock, when actually some
instances are driven by the bus clock (which usually runs at half the
system clock). This caused incorrect baud rate calculations for UART
instances driven by the bus clock (UART2-4).

Change-Id: I38041781cdee146912bb5167e7c71d6416b966b5
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2016-11-04 23:00:04 +00:00
Gil Pitney
e8b43cbc81 cc3200: Add a UART driver (polled and interrupt modes)
The pinmux configuration is done during board initialization.

This was validated using the following Zephyr apps:
- samples/hello_world
- samples/philosophers
- samples/drivers/uart
- samples/shell

UARTA0 is currently supported.

Change-Id: I85727c622d4d42183cc9f2f8b43d653e245dd17e
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
2016-11-04 14:53:33 +00:00
JuanX Solano Menacho
8a287b1016 uart_qmsi: Use qm_uart_*_context API
Remove the Zephyr implementation and
update the uart_qmsi driver to use new QMSI PM APIs.

Jira: ZEP-998
Change-Id: I418e6384c16e374e9062820e12648a2d524a312d
Signed-off-by: JuanX Solano Menacho <juanx.solano.menacho@intel.com>
2016-11-03 23:52:07 +00:00
Iván Briano
5b31f76113 uart qmsi: Use provided macros to configure IRQ
Use the macros provided by QMSI (or by ourselves, when QMSI doesn't
have them yet) to register interrupts independently of which core it's
building for.

Change-Id: I83fd7e42598b45aef8132316906a3bff291dfe92
Signed-off-by: Iván Briano <ivan.briano@intel.com>
2016-11-02 22:24:27 +00:00
Iván Briano
0094ab228d ext qmsi: Update to QMSI 1.3 release
Update the QMSI drop we maintain in Zephyr, and fix the build where
needed:

- QM_SCSS_INT is renamed to QM_INTERRUPT_ROUTER;
- every member of QM_INTERRUPT_ROUTER was renamed as well;
- QM_IRQ_* renamed too, mostly added _INT at the end;
- some isr functions were renamed to keep their names consistent;
- build for x86 needs to define QM_LAKEMONT, as QM_SENSOR was for ARC.

Change-Id: I459029ca0d373f6c831e2bb8ebd52402a55994d1
Signed-off-by: Iván Briano <ivan.briano@intel.com>
2016-10-31 13:26:06 +00:00
Kumar Gala
2f9d83d340 uart: stm32: add support for STM32F4
Change the clock accessors to a tuple of bus ID of the subsystem and enable
bits for the device - it is clearer to read than the opaque pointers.

Change-Id: I9ae73c222c04adac4cf2bc06e97f4ec199bdac3c
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2016-10-28 18:58:05 +00:00
Marcus Shawcroft
f84ce64390 serial/uart_nsim: Make driver_api const.
Change-Id: Iefa9afe9cfdbb40e27c6e27f28c26dfea042ca79
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-26 20:50:59 +00:00
Carles Cufi
749d153afa drivers: uart_nrf5: Remove pull-up configuration from RTS
The Ready To Send (RTS) hardware flow control signal in the nRF5
UART was being configured as an output with a pull-up on it.
This was seemingly causing certain issues with btattach on Linux
and it's not done anywhere else.

Change-Id: Id792d967b043ea7a796d6598500a733c092dbc2c
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2016-10-26 12:57:56 +00:00
Marcus Shawcroft
d3ea539afc serial/uart_stm32: Make driver_api structure const.
Change-Id: Ia877269952839299c2de12a08d56be9a809fd12c
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:44 +00:00
Marcus Shawcroft
7eddbaa21e serial/uart_stellaris: Make driver_api structure const.
Change-Id: I24406298b0928f7dbc154272a32293ecdc04a5d5
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:43 +00:00
Marcus Shawcroft
95d962cfed serial/uart_qmsi: Make driver_api structure const.
Change-Id: Iffa46ba38e106569249bce89646cb813dadc2bce
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:43 +00:00
Marcus Shawcroft
7c8b6498e3 serial/uart_ns16550: Make driver_api structure const.
Change-Id: Ie27216f1020504d8c6368d228e2e8e94da8fa51f
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:42 +00:00
Marcus Shawcroft
f5bc9b12e7 serial/uart_nrf5: Make driver_api structure const.
Change-Id: I066702278afa0bbf6ce4bb916eb1780a8eb2d065
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:42 +00:00
Marcus Shawcroft
6121f92f21 serial/uart_k20: Make driver_api structure const.
Change-Id: I728dd079ff058e8b2a3fa40b4d8c844e8ffd1649
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:41 +00:00
Marcus Shawcroft
800c8722a5 serial/uart_atmel_sam3: Make driver_api structure const.
Change-Id: I745bf7060e4ae0fff5fd4c917d4b979dde1201e9
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:41 +00:00
Marcus Shawcroft
610e9136c6 serial/uart_altera_jtag: Make driver_api structure const.
Change-Id: Iace2f7daac33a146eb834c11f0de13bdd26e2b3d
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-25 18:45:40 +00:00
Carles Cufi
33d17497d2 drivers: uart_nrf5: Use MDK baudrate divisor constants
The baudrate calculation present in set_baudrate() is
causing the UART to emit inital bytes incorrectly, for a
reason currently unknown, but directly related to the fact
that __aeabi_uldivmod is being invoked.
Since the nRF5x Product Specifications do not provide a
standard formula to calculate baudrates and instead list
a predefined set of divisor values, we opt here to use the
official values and remove the attempt at calculating them
manually.

Change-Id: Ic3ff42ea6d065e9a1d26a5350ce5bf5ad661160a
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2016-10-25 18:40:56 +00:00
Johan Hedberg
b1d5ae72e3 drivers/serial: Make nRF5 UART pin configuration board-specific
The exact pin numbers for the nRF5 UART configuration is
board-specific, so the Kconfig default values should be in a
board-specific file.

Change-Id: Ibaacde292db191221e32b3626c68bf972dd26016
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2016-10-24 15:04:46 +00:00
Ricardo Salveti
7124d95795 serial: make nrf5 driver compatible with nrf51
Default IRQ priority changed to 1 to so it can also be compatible with
nRF51 (Cortex-M0 allows up to 4 priority levels but Zephyr needs the
first two for the OS).

Change-Id: Ie57a729f5d932f020a7d1d7e55cf3741f1ecfbab
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
2016-10-22 01:25:54 +00:00
Ricardo Salveti
69b9451af1 arm/nordic: use a common header for the nrf51/nrf52 SoC families
Integrating the IRQ definitions for both nRF51 and nRF52, and defining
the set of IRQ values that are common to both.

Also switch the controller, uart and clock drivers to use the common
header definitions.

Change-Id: Id6816d7a97720896cfe4df83656fb8b1f8fb01fa
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
2016-10-22 01:25:54 +00:00
Marcus Shawcroft
bad9aa1501 uart/ns16550: Make driver config_info structure const.
Change-Id: I57c71df60dfcfee1ea6bf461777775b928a61c1b
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-20 16:49:01 +00:00
Marcus Shawcroft
b1d9647595 uart/nrf5: Make driver config_info structure const.
Change-Id: Ic601560c187a35b9087e058957f426fb92a1d761
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-20 16:49:00 +00:00
Marcus Shawcroft
5acbdcc34e uart/altera_jtag: Make driver config_info structure const.
Change-Id: I22b128f1b43dd081e8c9fc9473f8ba3752d4ad5d
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
2016-10-20 16:49:00 +00:00