Commit Graph

6 Commits

Author SHA1 Message Date
Andre Guedes 024cfe754e drivers: Replace DEV_OK by 0
This patch replaces all occurences of the macro DEV_OK by the actual
value 0 at the driver level. So this patch touch the files under
drivers/, include/ and samples/drivers/.

This patch is part of the effort to transition from DEV_* codes to
errno.h codes.

Change-Id: I69980ecb9755f2fb026de5668ae9c21a4ae62d1e
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
2016-03-16 19:30:04 -04:00
Andrew Boie cb5022fdba ipm_quark_se: lock irqs while waiting for status bit to clear
Change-Id: Ieb0ac7a32a91826dca39ddb6bec80081c7d2c888
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:15 -05:00
Andrew Boie 4f0f7e3325 ipm_quark_se: don't wait for response with interrupts locked
If the remote handler tries to send a message back with wait enabled
it can lead to a deadlock.

Change-Id: Ife6eae29c10e8937abd1b6511ee605f7786c6a7a
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:14 -05:00
Andrew Boie 08d3cd7bfd ipm: quark_se: fix dropped/repeating characters
The while loop on the status bit was unnecessary as we will get
a separate invocation of the ISR for every message. We also ensure
that the global status register bits for the channel being serviced
are cleared before exiting. Fixes an issue where some messages
would be dropped or repeated.

Some runtime checks that shouldn't happen in practice have been moved
to assertions.

Change-Id: Iedd28ae15522c7b9f59ef34fa9fa8b4e24e6be14
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:14 -05:00
Dirk Brandewie 0551ee0708 ipm: rework isr to service one set of requests at a time
Change-Id: I50604748cee1aeb43dc764f426d3a17fcc943cbe
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:25:12 -05:00
Andrew Boie 3589695508 ipi: rename to ipm
To many people, IPI connotes inter-processor interrupts on SMP
systems. Rename this to IPM, or Inter-Processor Mailboxes.

Change-Id: I032815e23c69a8297c0a43992132441c240fb71e
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-02-05 20:25:04 -05:00