On 14/12/16 22:59, Chris Johns wrote:
On 15/12/2016 01:23, Sebastian Huber wrote:
From: Alexander Krutwig <alexander.krut...@embedded-brains.de>
Update #2841.
---
cpukit/dev/Makefile.am | 7 +
cpukit/dev/include/dev/serial/nxp-sc16is752.h | 165 +++++++++++++++++
cpukit/dev/preinstall.am | 9 +
cpukit/dev/serial/nxp-sc16is752-regs.h | 108 +++++++++++
cpukit/dev/serial/nxp-sc16is752-spi.c | 126 +++++++++++++
cpukit/dev/serial/nxp-sc16is752.c | 257
++++++++++++++++++++++++++
6 files changed, 672 insertions(+)
create mode 100644 cpukit/dev/include/dev/serial/nxp-sc16is752.h
create mode 100644 cpukit/dev/serial/nxp-sc16is752-regs.h
create mode 100644 cpukit/dev/serial/nxp-sc16is752-spi.c
create mode 100644 cpukit/dev/serial/nxp-sc16is752.c
I see this change adds serial drivers to the cpukit/dev tree.
Yes, and it was in total more than one man month of work to make this
possible. Its not a small thing.
Is this where all new serial drivers are to be located? I am happy to
see this happen but we need suitable documentation about this and any
rules etc developers need to know including "add all new serial
drivers here".
The preferred place for drivers should be the cpukit. We need however a
suitable abstraction of the low-level hardware access. We don't have
this at the moment except for I2C and SPI.
Do we have documentation about the cpukit/dev tree?
Documentation of the new SPI and I2C frameworks is on my todo list. I
will add some notes to the console driver chapter.
What happens to the existing drivers we have in libchip and other
locations? Is the aim to have all driver move to cpukit/dev?
Yes, this should be the aim, however, I don't see that anyone has time
to do this. I already spend more than one man week in vain to do this
and eventually gave up.
For the record I support the cpukit/dev driver tree and think libchip
should be removed.
Chris
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Sebastian Huber, embedded brains GmbH
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