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\ Hypervisor Software File: intr.fth
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id: @(#)intr.fth 1.1 07/01/24
purpose: EHCI USB Controller intr pipes transaction processing
\ See license at end of file
\ XXX Need to implement periodic interrupt transactions
d# 500 constant intr-in-timeout
0 instance value intr-in-pipe
0 instance value intr-in-interval
0 instance value intr-in-qh
0 instance value intr-in-qtd
: intr-in-data@ ( -- n ) intr-in-pipe target di-in-data@ di-data>td-data ;
: intr-in-data! ( n -- ) td-data>di-data intr-in-pipe target di-in-data! ;
: toggle-intr-in-data ( -- ) intr-in-pipe target di-in-data-toggle ;
: fixup-intr-in-data ( qh -- n )
usb-error USB_ERR_STALL and if
drop intr-in-pipe h# 80 or unstall-pipe
>hcqh-overlay >hcqtd-token le-l@
: process-intr-args ( buf len pipe timeout -- ) process-bulk-args ;
: alloc-intr-qhqtds ( -- qh qtd ) alloc-bulk-qhqtds ;
: fill-intr-io-qtds ( dir qtd -- )
my-#qtds 0 do ( dir qtd )
my-buf my-buf-phys /my-buf 3 pick fill-qtd-bptrs
2 pick over d# 16 << or ( dir qtd /bptr token )
TD_C_ERR3 or TD_STAT_ACTIVE or ( dir qtd /bptr token' )
intr-in-data@ toggle-intr-in-data or ( dir qtd /bptr token' )
2 pick >hcqtd-token le-l! ( dir qtd /bptr )
dup fixup-last-qtd ( dir qtd )
>qtd-next l@ ( dir qtd' )
: begin-intr-in ( buf len pipe interval -- )
debug? if ." begin-intr-in" cr then
intr-in-qh if 4drop exit then \ Already started
intr-in-timeout process-intr-args
alloc-intr-qhqtds to intr-in-qtd to intr-in-qh
TD_PID_IN intr-in-qtd fill-intr-io-qtds
\ Start intr in transaction
intr-in-qh pt-intr fill-qh
intr-in-qh my-speed intr-in-interval insert-intr-qh
: intr-in? ( -- actual usberr )
intr-in-qh 0= if 0 USB_ERR_INV_OP exit then
intr-in-qh dup sync-qhqtds
intr-in-qtd dup intr-in-qh >qh-#qtds l@ get-actual
over >qtd-buf rot >qtd-pbuf l@ 2 pick dma-sync
intr-in-qh fixup-intr-in-data
: restart-intr-in-qtd ( qtd -- )
dup >hcqtd-bptr0 dup le-l@ h# ffff.f000 and swap le-l!
dup >qtd-/buf l@ d# 16 <<
TD_STAT_ACTIVE or TD_C_ERR3 or TD_PID_IN or
intr-in-qh 0= if exit then
intr-in-qtd restart-intr-in-qtd
intr-in-qh >hcqh-endp-char dup le-l@ QH_TD_TOGGLE invert and swap le-l!
intr-in-qtd >qtd-phys l@ intr-in-qh >hcqh-overlay >hcqtd-next le-l!
debug? if ." end-intr-in" cr then
intr-in-qh 0= if exit then
intr-in-qh dup fixup-intr-in-data
intr-in-qtd map-out-bptrs
dup remove-intr-qh free-qhqtds
0 to intr-in-qh 0 to intr-in-qtd
: (end-extra) ( -- ) (end-extra) end-intr-in ;
' (end-extra) to end-extra
\ Copyright (c) 2006 FirmWorks
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projects / OpenSPARC-T2-SAM / blob