Replace all calls to sigqueue() in the OS proper with calls to nxsig_queue() to avoid accessing the errno variable.
sched/signal: Add nxsig_queue() which is functionally equivalent to sigqueue() except that it does not modify the errno variable.
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.
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.
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
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.
configs/z80sim and xtrs: Serial driver lower halfs ioctl methods should return a negated errno value, not set the errno variable.
drivers/wireless: CC1101 driver not permitted to set errno.
drivers/sensors: LIS331DL driver not permitted to set errno.
drivers/lcd: ILI9341 initialize method not permitted to set errno,
drivers/serial: 16550 UART driver IOCTL method must not set errno; it must return a negated errno value.
drivers/xbee: Fixes a few warnings
* drivers/xbee: Fixes a few warnings
* configs/clicker2-stm32: Updates sections about i8sak usage in the README
Approved-by: Gregory Nutt <gnutt@nuttx.org>
drivers/wireless: Adds XBee S2C (802.15.4 firmware) support. XBee driver emulates mac802154 interface
* drivers/wireless/xbee: Adds xbee_netdev. Very similar to mac802154_netdev
* configs/same70-xplained: Starts adding support for XBee radio
* drivers/wireless/ieee802154/xbee: More structuring of XBee driver
* drivers/wireless/ieee802154/xbee: More Xbee work. Starts adding support on Clicker2
* drivers/wireless/ieee802154/xbee: More XBee MAC code
* configs/clicker2-stm32: More work to add XBee radio support
* drivers/wireless/ieee802154/xbee: Most of driver is now structured. No build errors
* configs/clicker2-stm32: Adjustments to XBee click module support
* drivers/xbee: Changes md_ prefix to xd_ prefix for xbeenet_driver_s fields
* drivers/xbee: XBee network device now passes MAC events via IOCTL
* drivers/xbee: Support querying device for parameters, setting parameters, and structures association/startpan logic
* configs/clicker2-stm32: Fixes Xbee lower half ATTN poll logic
* drivers/xbee: Removes dependce on CONFIG_IEEE802154_NETDEV
* drivers/xbee: Supports MAC RESET.request primitive
* drivers/xbee: Exposes generic AT query to the rest of driver
* drivers/xbee: Sets local values when writing setting change to Xbee device
* drivers/xbee: Finish association logic
* drivers/xbee: Adds xbee_get_mhrlen( ) allocating enough space for API frame header to frame
* drivers/xbee: Finishes transmit/receive logic
* drivers/xbee: Fixes xbee_netdev to match logic in mac802154_netdev.c
* drivers/xbee: Rearranges logic to prevent a loop condition where recursion could potentially occur to the point of deadlocking the system
Approved-by: Gregory Nutt <gnutt@nuttx.org>
Merged in merlin17/nuttx/mac802154-sock (pull request #479)
wireless/ieee802154: Adds support for receiving MAC events via IOCTL through socket interface. Other small fixes and cleanup
* ioctl: Cleans up MAC802154IOC values
* wireless/ieee802154: Cleans up MAC802154IOC_NOTIFY_REGISTER logic in character driver
* wireless/ieee802154/mac802154_netdev: Adds support for MAC event notification via IOCTL
* wireless/ieee802154/mac802154: Changes reset logic. No longer reset extended address.
* wireless/ieee802154: Cleans up MAC802154IOC logic
Moves MAC802154IOC from ieee802154_ioctl.h and renames ieee802154_ioctl.h to ieee802154_device.h since it only contains types relevant to the MAC char device now.
* wireless/ieee802154/mac802154_device: Cleans up IOCTL logic for recent changes.
* drivers/wireless/ieee802154/mrf24j40: Adds missing break in case statement
* wireless/ieee802154/mac802154_netdev: Starts adding support for passing MAC events via IOCTL
* wireless/ieee802154/mac802154: Fixes issue with receiver enable logic
* wireless/ieee802154/mac802154: Fixes issue where extended address is cleared and not rewritten after radio reset
* configs/clicker2-stm32/mrf24j40-mac: Enables RAMLOG and wireless driver logging
* wireless/ieee802154/mac802154: Fixes poll logic meant to automatically choose address mode based on short address range.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
commit 2a3ab1652a2c95bcfc8be8380fc7cbdcb6472938
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Sat Aug 19 08:44:31 2017 -0600
PF_IEEE802154: Finish some missing bind() logic. Add configs/sim configuration for testing.
commit 59be4b846a6e3bfe82087a888e3fdac9c3c414e5
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 19:30:04 2017 -0600
PF_IEEE802154: More renaming to decouple 6LoPAN from radios in general.
commit 69fabb1aea76e54381bdc13de28a3f1441fb42f4
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 19:21:11 2017 -0600
PF_IEEE802154: Missed a few renamings.
commit ff0af1bb25567720934cc1c2a721ccd92cc35f89
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 17:46:58 2017 -0600
PF_IEEE802154: A few bugfixes
commit 01c7c84afd00cf907d280d30cfaf0fb2cf90e02e
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 17:01:31 2017 -0600
PF_IEEE802154: A few bugfixes
commit dcef4056d1c1488c93151135f3b7106977faa903
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 16:31:05 2017 -0600
PF_IEEE802154: Bring in framework for sendto/recvfrom. Currently just a crude port of functions from net/pkt and do not provide the implemenation needed.
commit 68c5b7b6dd3ab7eb2d0c19890abb38e6561b140e
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 15:18:31 2017 -0600
Trivial fix to typo in comment
commit fd0af534c089569ccdbd59f13b85453de0a653ad
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 15:07:20 2017 -0600
PF_IEEE802154: Add device lookup logic; Rename some things that used to be used only by 6LoWPAN but now must be shared with PF_IEEE802154 and need more generic naming.
commit 4fc80a1659f1c699b050775cefc7f6b631b46114
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 13:49:54 2017 -0600
PF_IEEE802154: Add driver poll logic.
commit d83f71992df8764faa93f9425f1a7602a758f730
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 13:28:59 2017 -0600
PF_IEEE802154: Add frame input function.
commit 77561b8c4d5d7be1f8d8eb62cf1a07229afe2048
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 12:46:29 2017 -0600
PF_IEEE802154: Socket type should be SOCK_DGRAM. Hook in socket interface.
commit c0f90350282e9905d7f26a1b30f04cc6d6794648
Merge: 8b518abfd0 169c55e546
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 09:36:32 2017 -0600
Merge remote-tracking branch 'origin/master' into pf_ieee802154
commit 8b518abfd07d492f5148f2c5fdf65604de9822da
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 09:35:39 2017 -0600
PF_IEEE802154: Add initialization and connection management logic.
commit 98b62620b3cb420041d8ad14204f9410a8aace8c
Author: Gregory Nutt <gnutt@nuttx.org>
Date: Fri Aug 18 07:52:51 2017 -0600
PF_IEEE802154: Add basic build support and socket interface framework.
Gregory Nutt