Commit Graph

49 Commits

Author SHA1 Message Date
Gregory Nutt
240926c995 Beginning to update comments to reflect new organization of the boards/ sub-directory. 2019-08-08 08:46:54 -06:00
Gregory Nutt
615c0ea7ee Change naming configs/ to boards in comments, Documentation, etc. Still a few more to go. 2019-08-05 07:13:48 -06:00
Gregory Nutt
b49be4bb20 Squashed commit of the following:
arch/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    sched/ audio/ crypto/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    Documentation/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    fs/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    graphics/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    net/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    drivers/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    include/, syscall/, wireless/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    configs/:  Remove all references to CONFIG_DISABLE_POLL.  Standard POSIX poll can no longer be disabled.
2019-05-21 18:57:54 -06:00
Dave Marples
8328539534 drivers/spi/Kconfig and include/nuttx/spi/spi.h: Extend the HW features supported by SPI. It now supports a deffered DMA trigger hardware configuration. arch/arm/src/stm32/stm32_spi.c: Implements the new deferred DMA trigger feature. 2018-12-02 07:30:55 -06:00
Alan Carvalho de Assis
283b73edc5 Fix lots of typos in C comments and Kconfig help text 2018-07-08 18:24:45 -06:00
Juha Niskanen
b4a5cbb9de drivers/i2c and drivers/spi: Fix compile if CONFIG_DISABLE_PSEUDOFS_OPERATIONS, fix bad NULL checks 2018-03-01 08:36:48 -06:00
Dmitriy Linikov
a8c58607e9 Merged in hardlulz/modem-3.0-nuttx/fix-sem-EINTR (pull request #603)
Added ECANCELED condition to DEBUGASSERT-s checking sem_wait result

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2018-02-20 18:24:53 +00:00
Gregory Nutt
1567b82429 Make sure that labeling is used consistently in all function headers (part 2). 2018-02-01 12:03:55 -06:00
Gregory Nutt
936df1bcb5 Adds new OS internal functions nxsig_sleep() and nxsig_usleep. These differ from the standard sleep() and usleep() in that (1) they don't cause cancellation points, and (2) don't set the errno variable (if applicable). All calls to sleep() and usleep() changed to calls to nxsig_sleep() and nxsig_usleep().
Squashed commit of the following:

    Change all calls to usleep() in the OS proper to calls to nxsig_usleep()

    sched/signal:  Add a new OS internal function nxsig_usleep() that is functionally equivalent to usleep() but does not cause a cancellaption point and does not modify the errno variable.

    sched/signal:  Add a new OS internal function nxsig_sleep() that is functionally equivalent to sleep() but does not cause a cancellaption point.
2017-10-06 10:15:01 -06:00
Gregory Nutt
9568600ab1 Squashed commit of the following:
This commit backs out most of commit b4747286b1.  That change was added because sem_wait() would sometimes cause cancellation points inappropriated.  But with these recent changes, nxsem_wait() is used instead and it is not a cancellation point.

    In the OS, all calls to sem_wait() changed to nxsem_wait().  nxsem_wait() does not return errors via errno so each place where nxsem_wait() is now called must not examine the errno variable.

    In all OS functions (not libraries), change sem_wait() to nxsem_wait().  This will prevent the OS from creating bogus cancellation points and from modifying the per-task errno variable.

    sched/semaphore:  Add the function nxsem_wait().  This is a new internal OS interface.  It is functionally equivalent to sem_wait() except that (1) it is not a cancellation point, and (2) it does not set the per-thread errno value on return.
2017-10-04 15:22:27 -06:00
Gregory Nutt
42a0796615 Squashed commit of the following:
sched/semaphore:  Add nxsem_post() which is identical to sem_post() except that it never modifies the errno variable.  Changed all references to sem_post in the OS to nxsem_post().

    sched/semaphore:  Add nxsem_destroy() which is identical to sem_destroy() except that it never modifies the errno variable.  Changed all references to sem_destroy() in the OS to nxsem_destroy().

    libc/semaphore and sched/semaphore:  Add nxsem_getprotocol() and nxsem_setprotocola which are identical to sem_getprotocol() and set_setprotocol() except that they never modifies the errno variable.  Changed all references to sem_setprotocol in the OS to nxsem_setprotocol().  sem_getprotocol() was not used in the OS
2017-10-03 15:35:24 -06:00
Gregory Nutt
83cdb0c552 Squashed commit of the following:
libc/semaphore:  Add nxsem_getvalue() which is identical to sem_getvalue() except that it never modifies the errno variable.  Changed all references to sem_getvalue in the OS to nxsem_getvalue().

    sched/semaphore:  Rename all internal private functions from sem_xyz to nxsem_xyz.  The sem_ prefix is (will be) reserved only for the application semaphore interfaces.

    libc/semaphore:  Add nxsem_init() which is identical to sem_init() except that it never modifies the errno variable.  Changed all references to sem_init in the OS to nxsem_init().

    sched/semaphore:  Rename sem_tickwait() to nxsem_tickwait() so that it is clear this is an internal OS function.

    sched/semaphoate:  Rename sem_reset() to nxsem_reset() so that it is clear this is an internal OS function.
2017-10-03 12:52:31 -06:00
Gregory Nutt
95e20afcd2 drivers/: Remove dangling space at the end of lines. 2017-06-28 13:17:17 -06:00
Sebastien Lorquet
0138a79028 bitbang 2017-04-28 18:15:42 +02:00
Maciej Wójcik
4a8aa6ae95 typos 2017-03-01 12:56:15 +01:00
Maciej Wójcik
29b4b00068 drivers/spi/Kconfig: There is too much SPI in the configuration menu; SPI Driver Support menu is empty 2017-02-23 14:39:13 -06:00
Paul A. Patience
d89765e1d0 spi: Fix Kconfig warning
This commit moves the ARCH_HAVE_SPI options outside the check
for SPI. Those options don't depend on SPI, and Kconfig files
in arch/ enable them even if SPI isn't enabled.

Sourcing the driver's Kconfig in drivers/Kconfig only if
support for the driver is enabled prevents us from defining
these ARCH_HAVE options in the driver's Kconfig. We should
probably remove the other checks in drivers/Kconfig and check
if the drivers are enabled only in their Kconfig.
2016-11-02 13:16:12 -04:00
Gregory Nutt
caea59b340 SPI bit order: Add configuration setting to indicate if an architecture-specif SPI implementation does or does not support LSB bit order. 2016-08-08 12:21:20 -06:00
Gregory Nutt
6df28bc74e Make bit-order SPI H/W feature configurable for better error detection 2016-08-08 11:54:13 -06:00
Gregory Nutt
83c7b4d5d6 SPI driver: Correct return value in case of a certain error condition 2016-08-06 08:07:30 -06:00
Gregory Nutt
50e9a5fa33 Add more options to spi_transfer 2016-08-05 13:22:18 -06:00
Gregory Nutt
5407a673fc Tiva TM4C-1294 Launchpad: tiva_appinit.c is a better home for board_pwm_setup() vs. tiva_bringup.c 2016-08-05 13:05:41 -06:00
Gregory Nutt
7048d08123 drivers/spi: Add an SPI character driver that will permit access to the SPI bus for testing purposes. This driver is a simple wrapper around spi_transfer(). 2016-08-05 11:07:35 -06:00
Gregory Nutt
7da67bc80a drivers/spi: Add a helper function that encapsulates and manages a sequency of SPI transfers. 2016-08-05 10:23:04 -06:00
Gregory Nutt
7c34a77b54 Move apps/system/usbmonitor to nuttx/drivers/usbmonitor 2016-06-30 12:24:33 -06:00
Gregory Nutt
ba03134bed Centralize definitions associated with CONFIG_DEBUG_SPI 2016-06-15 10:41:13 -06:00
Frank Benkert
573b1d415c * SAMV7: SPI: SPI-Freq. 40MHz; VARSELECT; hw-features
This change adds the following improvements:
  - Increase the allowed SPI-Frequency from 20 to 40 MHz.
  - Correct and rename the "VARSELECT" option This option was included in the code as "CONFIG_SPI_VARSELECT" but nowhere  defined in a Kconfig file. The patch renames it to "CONFIG_SAMV7_SPI_VARSELECT" and corrects the implementation according the datasheet of Atmel. In short, this option switches the processor from "fixed peripheral selection" (single device) to "variable peripheral selection" (multiple devices on the bus).
  - Add a new Function to the interface to control the timing and delays of the chip according the ChipSelect lines. This function can control the delay between the assertion of the ChipSelect and the first bit, between the last bit and the de-assertion of the ChipSelect and between two ChipSelects. This is needed to tune the transfer according the specification of the connected devices.
  - Add three "hw-features" for the SAMV7, which controls the behavior of the ChipSelect:
    1. force CS inactive after transfer: this forces a (short) de-assertion of the CS after a transfer, even if more data is
      available in time
    2. force CS active after transfer: this forces the CS to stay active after a transfer, even if the chip runs out of data. Btw.: this is a prerequisit to make the LASTXFER bit working at all.
    - escape LASTXFER: this suppresses the LASTXFER bit at the end of the  next transfer. The "escape"-Flag is reset automatically.
2016-06-14 13:12:16 -06:00
Gregory Nutt
efb02f2ef1 drivers/: Change some nerr() ERRORS to nwarn() WARNINGS. Anomolous network evernts are not errors. 2016-06-12 08:31:22 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
e99301d7c2 Rename *lldbg to *llerr 2016-06-11 14:55:27 -06:00
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
3a74a438d9 Rename CONFIG_DEBUG_VERBOSE to CONFIG_DEBUG_INFO 2016-06-11 11:50:18 -06:00
Gregory Nutt
67f38169b2 drivers/i2c: Move wrapper that implements I2C_WRITEREAD using I2C_transfer from pc9555.c to a new, comon i2c directory 2016-01-26 09:58:18 -06:00
Gregory Nutt
7edf921c5e Remove CONFIG_SPI_OWNBUS: Now it is not just a good idea, it is the law 2016-01-23 18:54:36 -06:00
Gregory Nutt
accd99db25 Add an optional hwfeatures method to the SPI interface 2016-01-23 15:12:45 -06:00
Gregory Nutt
0b12dbf95d Fix some spacing problems 2015-10-04 15:04:00 -06:00
Gregory Nutt
5b51a9fcdd Standardize the width of all comment boxes in C files 2015-10-02 17:43:18 -06:00
Gregory Nutt
b6d6776d02 Add a preliminary definition for an SPI slave interface 2015-08-08 10:45:15 -06:00
Gregory Nutt
342f5fe33d Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation 2015-06-28 08:08:57 -06:00
Gregory Nutt
2aa80e06f5 Remove executable flag from more .c and .h files 2015-04-09 08:20:57 -06:00
Gregory Nutt
e41d78e848 Add missing CONFIG_SPI_CALLBACK selection to the drivers/spi/Kconfig. Noted by Freddie Chopin 2015-03-04 07:23:46 -06:00
Gregory Nutt
0ff5a0c791 Correct port direction for Arduino MISO signal 2013-07-02 12:37:20 -06:00
Gregory Nutt
cfb156f286 Add support for touchscreen on ITEAD Arduino shield. Untested 2013-07-02 08:25:53 -06:00
Gregory Nutt
bdf96a93db Revise how delays are calculated in SPI bit bang driver so that we may get a little better frequency resolution 2013-07-01 20:55:36 -06:00
Gregory Nutt
652c33a53a clean up of SPI bit bang logic 2013-07-01 17:49:43 -06:00
Gregory Nutt
e1dab23711 Add a general bit-bang SPI lower-half driver and implement the bit-bang driver for the Arduino ITEAD TFT shield 2013-07-01 16:50:16 -06:00
Gregory Nutt
8b68ea2f94 Add a general bit-bang SPI upper-half driver 2013-07-01 12:23:26 -06:00
Gregory Nutt
09faaccc02 Created new directories to hold SPI-related files 2013-07-01 08:11:54 -06:00