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Author SHA1 Message Date
Gregory Nutt
0804286ad3 arch/: Add option to use low-priority work queue to all Ethernet drivers in arch that support CONFIG_NET_NOINTS. 2016-11-19 09:20:01 -06:00
Gregory Nutt
5ca9128c38 Update comments 2016-11-19 08:33:55 -06:00
Gregory Nutt
ceacacbc63 vfork(): Fix a race condition in the SMP case. Existing logic depended on the fact that the child would not run until waitpid was called because the child had the same priority as the parent. BUT in the SMP case that is not true... the child may run immediately on a different CPU. 2016-11-19 07:30:01 -06:00
Gregory Nutt
0db99b8c89 Trivial fix from review of last PR 2016-11-19 06:52:51 -06:00
Gregory Nutt
8705ce816a Merged in gnagflow/nuttx (pull request #173) 
Master
 2016-11-19 12:49:56 +00:00
Gregory Nutt
a658dc0f28 Merged in paulpatience/nuttx/stm32 (pull request #172) 
STM32: STM32F303xB and STM32F303xC chips have 4 ADCs
 2016-11-19 01:52:36 +00:00
Wolfgang Reißnegger
b23c1f8817 Typo fix in sam_udp.c 2016-11-18 17:23:22 -08:00
Wolfgang Reißnegger
5d658a8915 configs/dk-tm4c129x: Typo fix. 2016-11-18 17:23:21 -08:00
Wolfgang Reißnegger
88539a7497 USBMSC: Fix length of mode6 sense reply packet. 2016-11-18 17:23:21 -08:00
Wolfgang Reißnegger
d135246a7d SAM3/4: Remove 'stalled' flag in UDP driver. 
The flag is not necessary. The state of the endpoint can be determined
using 'epstate' instead.
 2016-11-18 17:23:21 -08:00
Wolfgang Reißnegger
9e349f4335 SAM3/4: Remove unused 'halted' flag in UDP driver. 2016-11-18 17:23:21 -08:00
Wolfgang Reißnegger
c7ef82c546 SAM3/4: Add delay between setting and clearing the endpoint RESET bit in sam_ep_resume(). 
We need to add a delay between setting and clearing the endpoint reset
bit in SAM_UDP_RSTEP. Without the delay the USB controller will (may?)
not reset the endpoint.

If the endpoint is not being reset, the Data Toggle (DTGLE) bit will
not to be cleared which will cause the next transaction to fail if
DTGLE is 1. If that happens the host will time-out and reset the bus.

Adding this delay may also fix the USBMSC_STALL_RACEWAR in
usbmsc_scsi.c, however this has not been verified yet.
 2016-11-18 17:23:21 -08:00
Paul A. Patience
8d9804d57b STM32: STM32F303xB and STM32F303xC chips have 4 ADCs 2016-11-18 19:28:09 -05:00
Gregory Nutt
48d9fff95a Update ChangeLog 2016-11-18 17:18:35 -06:00
Gregory Nutt
69e9f8638d Most interrupt handling logic interacts with tasks via standard mechanism such as sem_post, sigqueue, mq_send, etc. This all call enter_critical_section and are assumed to be safe in the SMP case. 
But certain logic interacts with tasks in different ways.  The only one that comes to mind are wdogs.  There is a tasking interface that to manipulate wdogs, and a different interface in the timer interrupt handling logic to manage wdog expirations.

In the normal case, this is fine.  Since the tasking level code calls enter_critical_section, interrupts are disabled an no conflicts can occur.  But that may not be the case in the SMP case.  Most architectures do not permit disabling interrupts on other CPUs so enter_critical_section must work differently:  Locks are required to protect code.

So this change adds locking (via enter_critical section) to wdog expiration logic for the the case if the SMP configuration.
 2016-11-18 13:57:30 -06:00
Gregory Nutt
cdbc66addd Merge branch 'master' of bitbucket.org:nuttx/nuttx 2016-11-18 09:30:40 -06:00
Gregory Nutt
936b55f608 drivers/net: Add option to use low-priority work queue to all drivers in drivers/net. Not yet added to all architecture-specific network drivers. 2016-11-18 09:22:49 -06:00
Gregory Nutt
175ec43628 Merged in slorquet/nuttx/timerfixes (pull request #171) 
Timerfixes
 2016-11-18 14:45:36 +00:00
Gregory Nutt
52560bba37 ENC28J60: Allow either HP or LP work queue to be used. 2016-11-18 08:41:27 -06:00
Sebastien Lorquet
d6813b0e2d Merge branch 'master' into timerfixes 2016-11-18 15:29:44 +01:00
Sebastien Lorquet
ddba6de8bc Add support for timers to nucleo l476 2016-11-18 15:26:31 +01:00
Sebastien Lorquet
5363d0619a Fix warnings 2016-11-18 15:26:08 +01:00
Gregory Nutt
78fd358023 Update some comments. 2016-11-18 08:20:52 -06:00
Gregory Nutt
8602e8a8a9 SMP: irq_csection() has a bad assumption. It assumed that the state of certain variables. That was true on entry into the interrupt handler, but might change to the execution of logic within the interrupt handler. 2016-11-18 07:38:16 -06:00
Gregory Nutt
8e029f019b Update comments 2016-11-17 17:30:12 -06:00
Gregory Nutt
47b52a2633 Fix an error in manually bringing in Sebastien's changes; Update some comments. 2016-11-17 16:15:06 -06:00
Gregory Nutt
9acd57c819 Fix up some naming and update some comments. 2016-11-17 15:50:39 -06:00
Gregory Nutt
558f4049d4 sched/irq/irq_csection: Fix a bad DEBUG assertion when SMP is enabled. 2016-11-17 15:36:27 -06:00
Gregory Nutt
f92afbfbf3 apps/examples/timer: Restore the timer example, but adapt the interface to use the new signal logic from Sebastien, Lorquet. Totally untested and probably does not work! 2016-11-17 15:19:17 -06:00
Gregory Nutt
19c1c9d78b All timer lower half drivers. Port Sebastien's changes to all all other implementations of the timer lower half. Very many just and untested. Expect some problems. 2016-11-17 15:03:31 -06:00
Sebastien Lorquet
197cec58d2 timer driver: Use signal to notify of timer expiration. Add generic argument so that there can be additional usage. 2016-11-17 14:38:21 -06:00
Gregory Nutt
18ad40b98c ARMv7-M: Fix double allocation of MPU region in mmu.h 2016-11-17 13:37:24 -06:00
Gregory Nutt
61bdea1625 Merge remote-tracking branch 'origin/master' into csection 2016-11-17 13:05:36 -06:00
Gregory Nutt
d4a048c0c6 Timer driver: Add hooks to support signal notification of timer expiration. Commented out because invasive interface changes would also be required to complete the implementation. 2016-11-17 12:41:11 -06:00
Gregory Nutt
ecb2d4cbc1 drivers/timer: Remove the TIOC_SETHANDLER IOCTL call. This calls directly from the timer driver into application code. That is non-standard, non-portable, and cannot be supported 2016-11-17 11:52:42 -06:00
Gregory Nutt
10af1e1734 sabre-6quad: Update TODO list 2016-11-17 11:50:58 -06:00
Gregory Nutt
bb19f1b499 spinlocks should be volatile. 2016-11-17 10:04:22 -06:00
Gregory Nutt
2c314464a8 Fix a typo in a comment 2016-11-17 08:03:45 -06:00
Gregory Nutt
ccdc11d8ff Fix typo in variable naming. g_cpu_irqset should be g_cpu_irqlock. 2016-11-17 06:37:24 -06:00
Gregory Nutt
1c1564f0c1 Add logic to handled nested calls to enter_critical_section() from interrupts handlers (with SMP). 2016-11-16 22:45:08 -06:00
Gregory Nutt
0c3207e86e Fix backward logic in an assertion. 2016-11-16 21:48:27 -06:00
Gregory Nutt
16f0b8fa96 Fix typos in DEBUASSERT statements 2016-11-16 19:58:51 -06:00
Gregory Nutt
f1e4951a8d Fix some comments 2016-11-16 19:11:31 -06:00
Gregory Nutt
4ca653a1cc Add some experimental changes to enter/leave_critical_section to deal with the case where interrupts are disabled only on the local CPU 2016-11-16 18:28:35 -06:00
Gregory Nutt
6a875bcb61 Xtensa: Add EXPERIMENTAL hooks to support lazy co-processor state restore in the future. 2016-11-16 06:48:13 -06:00
Gregory Nutt
5ce3b399d5 Correct some typos in comments 2016-11-15 16:48:40 -06:00
Gregory Nutt
40d7216a22 Back out 65ab12 and parts of 21f92b 2016-11-15 15:44:43 -06:00
Gregory Nutt
1b16e5a9e3 Merge branch 'master' of bitbucket.org:nuttx/nuttx 2016-11-15 13:25:42 -06:00
Gregory Nutt
6683f01444 Trivial change to comment 2016-11-15 13:38:43 -06:00
Gregory Nutt
23d2915179 Update README 2016-11-15 13:25:30 -06:00