Powering down 16-bit wi(4) PC Card is broken for me
M. Warner Losh
imp at bsdimp.com
Tue Sep 27 20:47:51 PDT 2005
In message: <20050923085358.GA58772 at ip.net.ua>
Ruslan Ermilov <ru at FreeBSD.org> writes:
: This is with today's -CURRENT, but it's been happening for some time
: now I guess.
: I have two PC Cards, one 32-bit 3.3V rl(4), and one 16-bit 5V wi(4).
: And it looks there's a problem with powering down the wi(4) card.
: Ejecting/injecting rl(4) works as expected. But first time I eject
: wi(4), it fails (Bad Vcc requested). After this happens, I can no
: longer use this slot -- "Bad Vcc requested" is printed during each
: ejection/injection, and I get "watchdog timeout" with rl(4).
Thanks for working with me offline. I believe that the following
should fix things up for you. Can you try the following patch?
==== //depot/user/imp/newcard/dev/pccbb/pccbb.c#125 (text+ko) ====
@@ -1269,12 +1269,12 @@
- /* reset signal asserting... */
- exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET);
+ /* Turn off the card's interrupt and leave it in reset */
+ exca_putb(&sc->exca, EXCA_INTR, 0);
tsleep(sc, PZERO, "cbbP1", hz / 100);
/* power down the socket */
- exca_clrb(&sc->exca, EXCA_PWRCTL, EXCA_PWRCTL_OE);
+ exca_putb(&sc->exca, EXCA_PWRCTL, 0);
/* wait 300ms until power fails (Tpf). */
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