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29 Commits

Author SHA1 Message Date
balrog
c9a33054bf Add a comment about masking of CTI interrupt in 16550A UART. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5264 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-09-20 01:15:04 +00:00
balrog
5628a6260a 16550A UART: RHR irq enable bit also masks the Rx timeout irq. 
The "Rx timeout" (aka. Character Timeout Indication) has no separate mask
bit in the IER register and according to the specs reading RHR is the only
way to reset the irq.  However on the hardware (tested on OMAP2 UART which
is an extended 16550A) the RHR_IT bit in IER disables the irc, too.  Linux
bluetooth serial dongle driver for N800 depends on this behavior.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5239 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-09-17 00:21:05 +00:00
aliguori
53e656001a serial: Always update iir, even when ier is empty (Samuel Thibault) 
This fixes installation of Windows XP.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4995 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-08-12 13:22:50 +00:00
aliguori
81174dae3f Upgrade emulated UART to 16550A (Stefano Stabellini) 
This patch upgrades the emulated UART to 16550A, the code comes from
xen-unstable. The main improvement was introduced with the following patch and
subsequent email thread:

http://lists.xensource.com/archives/html/xen-devel/2007-12/msg00129.html

The changes compared to previous version are:

- change clock_gettime to qemu_get_clock

- no token bucket anymore;

- fixed a small bug handling IRQs; this was the problem that prevented
kgdb to work over the serial (thanks to Jason Wessel for the help
spotting and reproducing this bug).

- many many style fixes;

- savevm version number increased;

- not including termios.h and sys/ioctl.h anymore, declaring static
constants in qemu-char.h instead;

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4993 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-08-11 14:17:04 +00:00
aurel32
b6cd0ea120 8250: Customized base baudrate 
(Jan Kiszka)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4336 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-05-04 21:42:11 +00:00
aurel32
6936bfe514 8250: throttle TX-completion IRQs 
(Jan Kiszka)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4335 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-05-04 21:42:00 +00:00
balrog
b2a5160c9f Add serial loopback mode (patch from Hervé Poussineau). 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3973 c046a42c-6fe2-441c-8c8c-71466251a162
 2008-02-10 13:40:52 +00:00
balrog
bd9bdce694 Add input buffer to mux chr (patch by Tristan Gingold). 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3735 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-11-25 00:55:06 +00:00
pbrook
87ecb68bdf Break up vl.h. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-11-17 17:14:51 +00:00
ths
3b46e62427 find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-09-17 08:09:54 +00:00
ths
5fafdf24ef find -type f | xargs sed -i 's/[\t ]$//g' # on most files 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-09-16 21:08:06 +00:00
blueswir1
71db710f7e Fix incorrect target_ulong use in hw devices 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2962 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-06-08 16:45:23 +00:00
ths
e918ee04e9 Big endian byte swap for serial mmapped interface. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2946 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-06-06 16:28:07 +00:00
pbrook
d537cf6c86 Unify IRQ handling. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-04-07 18:14:41 +00:00
ths
a4bc3afc09 Malta CBUS UART support. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2557 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-03-31 16:54:14 +00:00
pbrook
e5b0bc445e Rearrange char event handlers to fix CHR_EVENT_RESET. 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2361 c046a42c-6fe2-441c-8c8c-71466251a162
 2007-01-27 23:46:43 +00:00
bellard
508d92d057 16 bit divider 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2138 c046a42c-6fe2-441c-8c8c-71466251a162
 2006-08-26 18:00:36 +00:00
bellard
3e749fe1f7 simulate a null modem cable 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1808 c046a42c-6fe2-441c-8c8c-71466251a162
 2006-04-12 20:42:42 +00:00
bellard
e5d13e2f64 more generic serial port (initial patch by Jocelyn Mayer) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1654 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-11-23 21:11:49 +00:00
bellard
2122c51a9c char dev ioctls 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1610 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-11-10 23:58:33 +00:00
bellard
f8d179e33d use host serial port 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1609 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-11-08 22:30:36 +00:00
bellard
8738a8d079 serial load/save VM support (Vincent Pelletier) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1602 c046a42c-6fe2-441c-8c8c-71466251a162
 2005-11-06 15:48:04 +00:00
bellard
60e336dbb8 serial interrupt fix (Hampa Hug) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1049 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-08-24 21:55:28 +00:00
bellard
82c643ff50 char device support 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1023 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-07-14 17:28:13 +00:00
bellard
52302d7274 fix the no device case 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@715 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-04-07 21:01:17 +00:00
bellard
67b915a5dd win32 port (initial patch by kazu) 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@692 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-03-31 23:37:16 +00:00
bellard
b0a21b5334 use new timer API 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@689 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-03-31 18:58:38 +00:00
bellard
b41a2cd1e4 io port API change 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@664 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-03-14 21:46:48 +00:00
bellard
80cabfad16 separated more devices from emulator 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@656 c046a42c-6fe2-441c-8c8c-71466251a162
 2004-03-14 12:20:30 +00:00