diff options
author | 2015-08-28 09:58:54 +0800 | |
---|---|---|
committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/slof/fs/term-io.fs | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/slof/fs/term-io.fs')
-rw-r--r-- | qemu/roms/SLOF/slof/fs/term-io.fs | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/fs/term-io.fs b/qemu/roms/SLOF/slof/fs/term-io.fs new file mode 100644 index 000000000..52ce12a5b --- /dev/null +++ b/qemu/roms/SLOF/slof/fs/term-io.fs @@ -0,0 +1,97 @@ +\ ***************************************************************************** +\ * Copyright (c) 2004, 2008 IBM Corporation +\ * All rights reserved. +\ * This program and the accompanying materials +\ * are made available under the terms of the BSD License +\ * which accompanies this distribution, and is available at +\ * http://www.opensource.org/licenses/bsd-license.php +\ * +\ * Contributors: +\ * IBM Corporation - initial implementation +\ ****************************************************************************/ + + +: input ( dev-str dev-len -- ) + open-dev ?dup IF + \ Close old stdin: + s" stdin" get-chosen IF + decode-int nip nip ?dup IF close-dev THEN + THEN + \ Now set the new stdin: + encode-int s" stdin" set-chosen + THEN +; + +: output ( dev-str dev-len -- ) + open-dev ?dup IF + \ Close old stdout: + s" stdout" get-chosen IF + decode-int nip nip ?dup IF close-dev THEN + THEN + \ Now set the new stdout: + encode-int s" stdout" set-chosen + THEN +; + +: io ( dev-str dev-len -- ) + 2dup input output +; + + +1 BUFFER: (term-io-char-buf) + +: term-io-key ( -- char ) + s" stdin" get-chosen IF + decode-int nip nip dup 0= IF 0 EXIT THEN + >r BEGIN + (term-io-char-buf) 1 s" read" r@ $call-method + 0 > + UNTIL + (term-io-char-buf) c@ + r> drop + ELSE + [ ' key behavior compile, ] + THEN +; + +' term-io-key to key + +\ this word will check what the current chosen input device is: +\ - if it is a serial device, it will use serial-key? to check for available input +\ - if it is a keyboard, it will check if the "key-available?" method is implemented (i.e. for usb-keyboard) and use that +\ - if it's an hv console, use hvterm-key? +\ otherwise it will always return false +: term-io-key? ( -- true|false ) + s" stdin" get-chosen IF + decode-int nip nip dup 0= IF drop 0 EXIT THEN \ return false and exit if no stdin set + >r \ store ihandle on return stack + s" device_type" r@ ihandle>phandle ( propstr len phandle ) + get-property ( true | data dlen false ) + IF + \ device_type not found, return false and exit + false + ELSE + 1 - \ remove 1 from length to ignore null-termination char + \ device_type found, check wether it is serial or keyboard + 2dup s" serial" str= IF + 2drop serial-key? r> drop EXIT + THEN \ call serial-key, cleanup return-stack, exit + 2dup s" keyboard" str= IF + 2drop ( ) + \ keyboard found, check for key-available? method, execute it or return false + s" key-available?" r@ ihandle>phandle find-method IF + drop s" key-available?" r@ $call-method + ELSE + false + THEN + r> drop EXIT \ cleanup return-stack, exit + THEN + 2drop r> drop false EXIT \ unknown device_type cleanup return-stack, return false + THEN + ELSE + \ stdin not set, return false + false + THEN +; + +' term-io-key? to key? |