Commit graph

25 commits

Author SHA1 Message Date
Alexander Wachter
7ddbade257 drivers: can: rework can_attach_msgq
can_attach_msgq can be implemented as a wrapper of can_attach_isr.
This is implemented as a common function for all drives and reduces
the complexity of the specific drivers. Since this is common to
multi instances of drivers too, it is removed from the API struct.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-05-12 16:54:49 -04:00
Alexander Wachter
b3b43b8921 drivers: can: Extend can_send with void *arg and pass it to the isr cb
This commit extends the CAN api can_send function by an argument
that is passed to the isr callback.
With this extension it is possible to distinguish between sent masseges
when they use the same callback.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-05-12 16:54:49 -04:00
Alexander Wachter
1b93522304 drivers: can: Extend attach_isr with void *arg and pass to the isr cb
This commit extends the CAN api attach_isr function by an argument
that is passed to the isr callback.
With this extension it is possible to distinguish between filter matches
when they use the same callback.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-05-12 16:54:49 -04:00
Alexander Wachter
bc6186571e drivers: can: stm32: fix filter mode set
Bits are actually shifted by filter number instead of bank number.
This results in wrong mode and filter_index calculation.
Fix shifting of mode bits by using bank_number instead of filter_number.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-05-10 11:55:46 +02:00
Patrik Flykt
24d71431e9 all: Add 'U' suffix when using unsigned variables
Add a 'U' suffix to values when computing and comparing against
unsigned variables.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Maksim Masalski
d1f3bba705 can: fix unchecked return from clock_control_get_rate
Inside can_stm32_runtime_configure() result of
clock_control_get_rate() is not checked which might result that
function can return error and that error can not be handled

Coverity-CID: 190926
Fixes: #13886
Signed-off-by: Maksim Masalski <maxxliferobot@gmail.com>
2019-03-26 22:18:15 -04:00
Alexander Wachter
8484855428 drivers: can: stm32_can: Fix shifting zero width or out of bounds
When attaching the filters in a way that the filter width dos not change
but the type, CAN_NO_FREE_FILTER was returned when the new filter is at
the end. Also shifting is not necessary when the start is already out
of bounds.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-03-03 23:57:25 -05:00
Maksim Masalski
9f8db3d729 can: cast value 1U to type ULL in function can_stm32_set_filter
Potentially overflowing expression 1U << register_demand
changed to the 1ULL << register_demand to avoid overflow.

Coverity-CID: 190996
Fixes: #13829
Signed-off-by: Maksim Masalski <maxxliferobot@gmail.com>
2019-02-28 16:57:08 -08:00
Maksim Masalski
f32b94c46e can: cast value 1U to type u64_t in function can_stm32_set_filter
Potentially overflowing expression 1U << register_demand
I changed to (u64_t)1U << register_demand
To avoid overflow, I casted 1U to type u64_t.

Coverity-CID: 190996
Fixes: #13829
Signed-off-by: Maksim Masalski <maxxliferobot@gmail.com>
2019-02-28 16:57:08 -08:00
Alexander Wachter
b0826442ee drivers: can: Make zcan_frame const for sending
For sending the zcan_frame can be const, because its only
copied to the registers.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-02-28 08:45:44 -06:00
Jukka Rissanen
c478b5bb6e can: Rename can_msg and can_msg_filter structs
In order to follow the naming from Linux, change the name of
can_msg to zcan_frame, and can_msg_filter to zcan_filter.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2019-02-22 08:07:03 -05:00
Jukka Rissanen
58f3ae5334 can: Add Linux compatible frame and filter structs
Add new "struct can_frame" which is compatible with Linux so that it
is easier to port socket-can applications from Linux.
Rename existing can_filter to can_msg_filter so that the name will
not conflict with Linux compatible can_filter struct.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2019-02-22 08:07:03 -05:00
Alexander Wachter
873875411e drivers: can: stm32_can rework
This commit makes the stm32 CAN driver more readable and fix
a bug where the usage and rx_response array are not shifted correctly.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2019-02-12 09:39:30 -05:00
Jukka Rissanen
fc9e414ebf drivers: can: stm32: Add socket CAN support
Add support for socket CAN functionality. This means that user
is able to use BSD socket interface to send and receive CAN
packets.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2019-02-08 12:03:34 -05:00
Erwin Rol
47fb24fea3 drivers: can: fix typos
- swj -> sjw (Sync Jump Width)
- CAN_MAX_NUMBER_OF_FILTES -> CAN_MAX_NUMBER_OF_FILTERS

Signed-off-by: Erwin Rol <erwin@erwinrol.com>
2019-02-01 19:07:57 -05:00
Patrik Flykt
8ff96b5a57 drivers: Add 'U' to unsigned variable assignments
Add 'U' to a value when assigning it to an unsigned variable.
MISRA-C rule 7.2

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2018-12-04 22:51:56 -05:00
Andrzej Głąbek
20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Kumar Gala
aa2bdbe322 drivers: Remove board.h include
We either don't need board.h in the driver or we should be include soc.h
instead.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-01 13:21:11 -04:00
Anas Nashif
c141df09e3 drivers: can: move to new logger
Move to new logger subsystem.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-10-08 17:49:12 -04:00
Flavio Ceolin
da49f2e440 coccicnelle: Ignore return of memset
The return of memset is never checked. This patch explicitly ignore
the return to avoid MISRA-C violations.

The only directory excluded directory was ext/* since it contains
only imported code.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-14 16:55:37 -04:00
Alexander Wachter
39cb4b4167 drivers: can: Fix Issue #8226
This commit is a fix for Issue #8226
- Error flags are assigned to the correct mailbox now.
- set_filter_mutex is moved from can_stm32_attach to the wrappers
  can_stm32_attach_isr and can_stm32_attach_msgq. This protects
  response_type variable.
- Waiting for empty mailbox semaphore return value
  is checked for none zero values to check all error states.
- The mailbox tx_int_sem is reset before the sending is triggered.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2018-08-15 08:23:02 -05:00
Sritej Kanakadandi Venkata Rama
6f61f09803 drivers: can: Set a initial state to the can device before HAL_CAN_Init
As part of HAL_CAN_Init we check the initial state of the can handle.
Setting it to HAL_CAN_STATE_RESET as an initial state to start the
Init properly.

Resolves: #8416
Coverity-CID: 186580

Signed-off-by: Sritej Kanakadandi Venkata Rama <sritej.kvr@gmail.com>
2018-06-19 20:46:25 -04:00
Alexander Wachter
ebc31f6235 drivers: can: Prepare STM32 driver for other series than STM32F0
This commit splits the common interrupt into rx and tx parts because
only STM32F0 series has a common interrupt.
Moved clock source definition to device-tree.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2018-06-18 15:23:29 -04:00
Alexander Wachter
b97dd472fb drivers: can: Move bit timing and clock to device tree
This commit moves the bit timing (PROP, BS1, BS2 segments and SWJ)
from Kconfig to the device-tree and fixes issue #7933

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2018-06-01 12:59:42 -05:00
Alexander Wachter
2976ac351d drivers: can: Add CAN driver support for STM32
This commit adds low level driver support for STM32 micro controllers.
It is tested on stm32f072b in loopback and normal mode.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
2018-05-19 20:19:30 +02:00