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Add uart(4). Shuffle the information about sio(4) flags and options

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so that it's clear whicfh flags/options are used by both sio(4) and
uart(4) and which flags/options are specific to sio(4).
This commit is contained in:
Marcel Moolenaar 2003-09-07 03:45:48 +00:00
parent 854d378a59
commit 501ef98fe8
1 changed files with 39 additions and 20 deletions
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59
sys/conf/NOTES
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@ -1437,8 +1437,45 @@ hint.sio.0.port="0x3F8"
hint.sio.0.flags="0x10"
hint.sio.0.irq="4"
# Options for sio:
options CONSPEED=115200 # speed for serial console
# (default 9600)
options COM_ESP #code for Hayes ESP
options COM_MULTIPORT #code for some cards with shared IRQs
# `flags' specific to sio(4). See below for flags used by both sio(4) and
# uart(4).
# 0x20 force this unit to be the console (unless there is another
# higher priority console). This replaces the COMCONSOLE option.
# 0x40 reserve this unit for low level console operations. Do not
# access the device in any normal way.
# PnP `flags'
# 0x1 disable probing of this device. Used to prevent your modem
# from being attached as a PnP modem.
# Other flags for sio that aren't documented in the man page.
# 0x20000 enable hardware RTS/CTS and larger FIFOs. Only works for
# ST16650A-compatible UARTs.
#
# `flags' for serial drivers that support consoles (only for sio now):
# uart: newbusified driver for serial interfaces. It consolidates the sio(4),
# sab(4) and zs(4) drivers.
device uart
# The following hint should only be used for pure ISA devices. It is not
# needed otherwise. Use of hints is strongly discouraged.
hint.uart.0.at="isa"
# The following 3 hints are used when the UART is a system device (ie console
# or debug port), but only on platforms that don't have any other means to
# pass the information to the kernel. The unit number of the hint is only used
# to bundle the hints together. There's no relation to the unit number of the
# probed UART.
hint.uart.0.port="0x3f8"
hint.uart.0.flags="0x10"
hint.uart.0.baud="115200"
# `flags' for serial drivers that support consoles like sio(4) and uart(4):
# 0x10 enable console support for this unit. The other console flags
# are ignored unless this is set. Enabling console support does
# not make the unit the preferred console - boot with -h or set
@ -1446,36 +1483,18 @@ hint.sio.0.irq="4"
# console support; the first one (in config file order) with
# this flag set is preferred. Setting this flag for sio0 gives
# the old behaviour.
# 0x20 force this unit to be the console (unless there is another
# higher priority console). This replaces the COMCONSOLE option.
# 0x40 reserve this unit for low level console operations. Do not
# access the device in any normal way.
# 0x80 use this port for serial line gdb support in ddb.
#
# PnP `flags'
# 0x1 disable probing of this device. Used to prevent your modem
# from being attached as a PnP modem.
#
# Options for serial drivers that support consoles (only for sio now):
# Options for serial drivers that support consoles:
options BREAK_TO_DEBUGGER #a BREAK on a comconsole goes to
#DDB, if available.
options CONSPEED=115200 # speed for serial console
# (default 9600)
# Solaris implements a new BREAK which is initiated by a character
# sequence CR ~ ^b which is similar to a familiar pattern used on
# Sun servers by the Remote Console.
options ALT_BREAK_TO_DEBUGGER
# Options for sio:
options COM_ESP #code for Hayes ESP
options COM_MULTIPORT #code for some cards with shared IRQs
# Other flags for sio that aren't documented in the man page.
# 0x20000 enable hardware RTS/CTS and larger FIFOs. Only works for
# ST16650A-compatible UARTs.
# PCI Universal Communications driver
# Supports various single and multi port PCI serial cards. Maybe later
# also the parallel ports on combination serial/parallel cards. New cards