X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/399b932481303c09ebed1cfaaa88538ffa4746ba..789ebb2d04033053b3cfeaa73648e3a1c3b3d8f5:/ich2/ich2-timer.c diff --git a/ich2/ich2-timer.c b/ich2/ich2-timer.c deleted file mode 100644 index b8f7e1c..0000000 --- a/ich2/ich2-timer.c +++ /dev/null @@ -1,51 +0,0 @@ -/* ich2-timer.c - * High precision timer routines for ICH2 southbridge - * NetWatch system management mode administration console - * - * Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved. - * This program is free software; you can redistribute and/or modify it under - * the terms found in the file LICENSE in the root of this source tree. - * - */ - -#include -#include -#include - -static uint16_t _get_PMBASE() -{ - static long pmbase = -1; - - if (pmbase == -1) /* Memoize it so that we don't have to hit PCI so often. */ - pmbase = pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK; - - return pmbase; -} - -static unsigned long _curtmr() -{ - return inl(_get_PMBASE() + ICH2_PMBASE_PM1_TMR) & 0xFFFFFF; -} - -/* This is kind of a heuristic, since we can't get interrupts. */ -static unsigned long starttmr = 0, endtmr = 0; - -void oneshot_start_ms(unsigned long milliseconds) -{ - starttmr = _curtmr(); - endtmr = (starttmr + milliseconds*(ICH2_PM1_TMR_FREQ/1000)) & 0xFFFFFF; -} - -int oneshot_running(void) -{ - unsigned long time = _curtmr(); - - if (endtmr == 0 && starttmr == 0) - return 0; - if ((endtmr < starttmr) && ((time > starttmr) || (time < endtmr))) - return 1; - else if ((time < endtmr) && (time > starttmr)) - return 1; - endtmr = starttmr = 0; - return 0; -}