ad
d5a6fc237b
Deal with the strange SCC wiring on TC IOASIC machines. Thanks to Bill
...
Studenmund and Jonathan Stone for useful comments.
2002-09-24 13:23:31 +00:00
lukem
a4bae8b066
add/cleanup RCSID
2001-11-13 13:14:31 +00:00
thorpej
7711ad565b
bcopy -> memcpy
2001-07-07 15:53:13 +00:00
thorpej
c2c26e1362
bcmp -> memcmp
2001-07-07 05:35:39 +00:00
wdk
98f7903dd8
Don't reprogram SCC registers unless the values have changed.
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Some CMOS Z85C30 SCC's (as used in the SGI Indy and Mips Magnum 3000's)
reset the baud rate generator when a new prescaler is loaded - despite
what is documented in the datasheet.
Avoids "character glitch" problems when line discipline characteristics
are changed at the start of the login process, or during a ftp session
on the /dev/console device.
Tested on -sgimips, -mipsco and -alpha platforms
2001-06-25 08:30:11 +00:00
augustss
169ac5b3c1
Remove register declarations.
2000-03-30 12:41:09 +00:00
mycroft
b3a56d0097
Catch up with a change to the stint interface.
1999-02-03 20:22:28 +00:00
mycroft
f6dba67570
Read up to 32 bytes. The ESCC *needs* 8, and it doesn't hurt to leave some
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slop in case there are clone chips with a deeper FIFO.
1998-03-22 02:36:02 +00:00
wrstuden
6dcfc62169
KNF last change
1998-03-05 22:56:18 +00:00
wrstuden
84c6b9dbd7
Make zs_iflush not loop indefinitly. Some Mac PowerBooks lie about having
...
two SCC channels, and can get stuck in an infinite loop. This change
stops after flushing 4 bytes. Might need upping to 8 bytes if we support
85230 ESCC's.
Idea bounced off of scottr & gwr
1998-03-05 22:03:34 +00:00
mycroft
6ad2876b5a
Similar changes to com driver:
...
Arrange to call com_break() and com_modem() at splserial().
It's simpler this way. Really.
1998-02-19 21:26:10 +00:00
gwr
4371d4ef78
Remove the while loop from zsc_intr_hard(). It caused problems on
...
some machines, and those that really want to can just call this
function in a loop until it returns zero.
1997-10-04 22:30:30 +00:00
gwr
494730c376
New version of the z8530 driver that should permit the mac68k port
...
to use this instead of its own. Also fix warnings, etc.
1996-12-17 20:42:40 +00:00
gwr
eedc5c7e85
Rename cs_pclk_div16 to cs_brg_clk to clarify the fact that the
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Baud Rate Generator (BRG) clock is not necessarily PCLK/16.
1996-05-17 19:30:34 +00:00
gwr
32d12d3be4
Make the ring size configurable in the tty driver.
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Make the pseudo-interrupt functions return void.
Call the tty layer at spltty (to be safe).
1996-04-10 21:44:35 +00:00
gwr
f2e57c6dc8
Eliminate remaining direct references to the z8530 chip
...
to allow the MD access functions to do delays, etc.
1996-01-30 22:34:52 +00:00
gwr
ca633a9f35
Reorganized, machine-independent z8530 driver, based on the sparc/sun3 zs.
...
Uses autoconfig to attach keyboard, mouse, or tty. (See z8530.doc)
1996-01-24 01:07:21 +00:00
