diff options
| author | Uwe Stuehler <uwe@cvs.openbsd.org> | 2006-06-02 20:03:06 +0000 |
|---|---|---|
| committer | Uwe Stuehler <uwe@cvs.openbsd.org> | 2006-06-02 20:03:06 +0000 |
| commit | 4f12f882878fb2ae5bb49fb20ff342efba5ced3f (patch) | |
| tree | 3fd3f9532659d25c0d7a8efceedf2b88b2192cbe /sys | |
| parent | 8a2c47dc693f0b7d7c87cfab91e1dccefe733901 (diff) | |
Implement power hook (without looking at the capabilities yet).
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/sdmmc/sdhc.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/sys/dev/sdmmc/sdhc.c b/sys/dev/sdmmc/sdhc.c index 6eb897cfab9..df97eac4fd7 100644 --- a/sys/dev/sdmmc/sdhc.c +++ b/sys/dev/sdmmc/sdhc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sdhc.c,v 1.3 2006/06/01 21:47:42 uwe Exp $ */ +/* $OpenBSD: sdhc.c,v 1.4 2006/06/02 20:03:05 uwe Exp $ */ /* * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> @@ -50,6 +50,7 @@ struct sdhc_host { struct proc *event_thread; /* event processing thread */ struct sdmmc_command *cmd; /* current command or NULL */ struct timeout cmd_to; /* command timeout */ + u_int8_t regs[14]; /* host controller state */ }; #define HDEVNAME(hp) ((hp)->sdmmc->dv_xname) @@ -293,7 +294,6 @@ sdhc_event_thread(void *arg) struct sdhc_host *hp = arg; for (;;) { - //DPRINTF(("%s: tsleep sdhcev\n", HDEVNAME(hp))); (void)tsleep((caddr_t)hp, PWAIT, "sdhcev", 0); sdhc_event_process(hp); } @@ -302,8 +302,6 @@ sdhc_event_thread(void *arg) void sdhc_event_process(struct sdhc_host *hp) { - //DPRINTF(("%s: event process\n", HDEVNAME(hp))); - /* If there's a card, attach it, if it went away, detach it. */ if (sdhc_card_detect(hp)) { if (!ISSET(hp->flags, SHF_CARD_PRESENT)) { @@ -338,15 +336,31 @@ sdhc_event_process(struct sdhc_host *hp) void sdhc_power(int why, void *arg) { - /* struct sdhc_softc *sc = arg; */ + struct sdhc_softc *sc = arg; + struct sdhc_host *hp; + int n, i; switch(why) { case PWR_STANDBY: case PWR_SUSPEND: - /* XXX suspend or detach cards */ + /* XXX poll for command completion or suspend command + * in progress */ + + /* Save the host controller state. */ + for (n = 0; n < sc->sc_nhosts; n++) { + hp = &sc->sc_host[n]; + for (i = 0; i < sizeof hp->regs; i++) + hp->regs[i] = HREAD1(hp, i); + } break; + case PWR_RESUME: - /* XXX resume or reattach cards */ + /* Restore the host controller state. */ + for (n = 0; n < sc->sc_nhosts; n++) { + hp = &sc->sc_host[n]; + for (i = 0; i < sizeof hp->regs; i++) + HWRITE1(hp, i, hp->regs[i]); + } break; } } |