Fix brazilian ABNT2 keymap

This adds two missing keys (0x73 and 0x7e) and fixes KP_PERIOD (it
should type a comma, not a period), as mentioned in

https://groups.google.com/d/msg/minix3/Pezep_HOL3I/

Fix brazilian ABNT2 keymap

This adds two missing keys (0x73 and 0x7e) and fixes KP_PERIOD (it
should type a comma, not a period), as mentioned in

https://groups.google.com/d/msg/minix3/Pezep_HOL3I/mnfZXAeLsTMJ

Closes #247

Change-Id: Id85d04e36adcaa1a502cac8e5013396ea92502fe

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replace tickdelay with micro_delay to be quantum-agnostic

Change-Id: Ie449d797389a178372035d797c84b02d636788cd

at_wini: bump hardcoded ATAPI limit to DVD size

at_wini was previously hardcoded to present ATAPI devices as having a
size of 800 MiB, which was enough for CDs but not for DVDs. This
patch increase

at_wini: bump hardcoded ATAPI limit to DVD size

at_wini was previously hardcoded to present ATAPI devices as having a
size of 800 MiB, which was enough for CDs but not for DVDs. This
patch increases the device size to 8500 MiB, which should be large
enough to cover all DVDs.

Change-Id: I7d3192e4ecd0708a655663c1007ff517ed969580

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netconf(8): rewrite

When possible, network drivers are now started automatically. That
means that netconf(8)'s network driver selection has become obsolete.
This patch changes netconf(8) to allow t

netconf(8): rewrite

When possible, network drivers are now started automatically. That
means that netconf(8)'s network driver selection has become obsolete.
This patch changes netconf(8) to allow the user to specify a network
configuration (currently one of DHCP IPv4+IPv6, DHCP IPv4-only,
manual IPv4-only) for any hardware network interfaces that are
currently present.

Selection of network drivers that require manual configuration first
(mainly old ISA cards) is still supported, but now as a special case.

Change-Id: I6208fc75192eb7f0b061862aaf7507f71a620da4

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lance: perform full reinitialization for restarts

When performing a restart (CSR0 STOP, STRT), the behavior regarding
the NIC's current RX/TX descriptor ring counters varies between cards:
older LAN

lance: perform full reinitialization for restarts

When performing a restart (CSR0 STOP, STRT), the behavior regarding
the NIC's current RX/TX descriptor ring counters varies between cards:
older LANCE cards do not reset the counters; newer PCnet cards do
reset them; VirtualBox's emulation is once again broken in that it
claims to emulate newer cards but implements the older behavior.

Changing the card's receive mode requires such a restart, and now that
the system can actually change receive modes dynamically as part of
normal network operation, this results in the lance driver breaking
all the time on at least VirtualBox.

Instead of trying to figure out exactly what is going on with the
counters during a restart, we now simply perform a full-blown
reinitialization every time the NIC is restarted. That leaves no
ambiguity regarding the counters, and appears to be what drivers on
other OSes do as well. As a bonus, this approach actually saves code.

Change-Id: I60fad2df6de4616d5de2cec39c09b60c15d854fb

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libnetdriver: rewrite

This is a driver-breaking update to the netdriver library, which is
used by all network drivers. The aim of this change is to make the
library more compatible with NetBSD, and

libnetdriver: rewrite

This is a driver-breaking update to the netdriver library, which is
used by all network drivers. The aim of this change is to make the
library more compatible with NetBSD, and in particular with various
features that are expected to be supported by the NetBSD userland.
The main changes made by this patch are the following:

- each network driver now has a NetBSD-style short device name;
- drivers are not expected to receive packets right after startup;
- extended support for receipt modes, including multicast lists;
- support for multiple parallel send, receive requests;
- embedding of I/O vectors in send and receive requests;
- support for capabilities, including checksum offloading;
- support for reporting link status updates to the TCP/IP stack;
- support for setting and retrieving media status;
- support for changing the hardware (MAC) address;
- support for NetBSD interface flags IFF_DEBUG, IFF_LINK[0-2];
- support for NetBSD error statistics;
- support for regular time-based ("tick") callbacks.

IMPORTANT: this patch applies a minimal update to the existing drivers
in order to make them work at all with the new netdriver library. It
however does *not* change all drivers to make use of the new features.
In fact, strictly speaking, all drivers are now violating requirements
imposed by the new library in one way or another, most notably by
enabling packet receipt when starting the driver. Changing all the
drivers to be compliant, and to support the newly added options, is
left to future patches. The existing drivers should currently *not*
be taken as examples of how to implement a new network driver!

With that said, a few drivers have already been changed to make use of
some of the new features: fxp, e1000, rtl8139, and rtl8169 now report
link and media status, and the last three of those now support setting
the hardware MAC address on the fly. In addition, dp8390 has been
changed to default to PCI autoconfiguration if no configuration is
specified through environment variables.

Change-Id: I4b3ea9c0b9bc25d5b0609c6ff256fb0db71cdc42

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